diff --git a/.cmake.conf b/.cmake.conf
index 889ca7d8..898d0cde 100644
--- a/.cmake.conf
+++ b/.cmake.conf
@@ -5,10 +5,9 @@
 # (directly by qtbase) we actually add the extra definitions
 if (NOT DEFINED QT_SUPERBUILD OR DEFINED QT_REPO_MODULE_VERSION)
     set(QT_EXTRA_INTERNAL_TARGET_DEFINES "QT_LEAN_HEADERS=1")
-    list(APPEND QT_EXTRA_INTERNAL_TARGET_DEFINES "QT_NO_AS_CONST=1")
 endif()
 
-set(QT_REPO_MODULE_VERSION "6.5.3")
+set(QT_REPO_MODULE_VERSION "6.6.0")
 set(QT_REPO_MODULE_PRERELEASE_VERSION_SEGMENT "alpha1")
 
 set(QT_COPYRIGHT_YEAR "2023")
@@ -17,12 +16,14 @@ set(QT_COPYRIGHT "Copyright (C) ${QT_COPYRIGHT_YEAR} The Qt Company Ltd and othe
 # Minimum requirement for building Qt
 set(QT_SUPPORTED_MIN_CMAKE_VERSION_FOR_BUILDING_QT_SHARED "3.16")
 set(QT_SUPPORTED_MIN_CMAKE_VERSION_FOR_BUILDING_QT_STATIC "3.21")
+set(QT_SUPPORTED_MIN_CMAKE_VERSION_FOR_BUILDING_QT_APPLE "3.21")
 
 # Minimum requirement for consuming Qt in a user project.
 # This might be different in the future, e.g. be lower than the requirement for
 # building Qt.
 set(QT_SUPPORTED_MIN_CMAKE_VERSION_FOR_USING_QT_SHARED "3.16")
 set(QT_SUPPORTED_MIN_CMAKE_VERSION_FOR_USING_QT_STATIC "3.21")
+set(QT_SUPPORTED_MIN_CMAKE_VERSION_FOR_USING_QT_APPLE "3.21")
 
 # Policy settings for commands defined by qtbase. These will also be injected
 # into the top level policy scope of each Qt module when building Qt so that
diff --git a/.release-timestamp b/.release-timestamp
index e6b6e860..c49f3ba9 100644
--- a/.release-timestamp
+++ b/.release-timestamp
@@ -1 +1 @@
-QT_PACKAGEDATE_STR=2023-09-25
\ No newline at end of file
+QT_PACKAGEDATE_STR=2023-10-04
\ No newline at end of file
diff --git a/.tag b/.tag
index dd5a7f29..9caab974 100644
--- a/.tag
+++ b/.tag
@@ -1 +1 @@
-372eaedc5b8c771c46acc4c96e91bbade4ca3624
+33f5e985e480283bb0ca9dea5f82643e825ba87c
diff --git a/CMakeLists.txt b/CMakeLists.txt
index fd370a54..c774e297 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -1,8 +1,6 @@
 # Copyright (C) 2022 The Qt Company Ltd.
 # SPDX-License-Identifier: BSD-3-Clause
 
-# special case skip regeneration
-
 # Need an explicit call at the top level. This is the absolute minimum version
 # needed to configure the project with any combination of enabled features.
 # The call to qt_build_repo_begin() will upgrade policies further.
diff --git a/bin/qt-cmake-create.bat.in b/bin/qt-cmake-create.bat.in
new file mode 100644
index 00000000..ff8f7310
--- /dev/null
+++ b/bin/qt-cmake-create.bat.in
@@ -0,0 +1,18 @@
+@echo off
+:: The directory of this script is the expanded absolute path of the "$qt_prefix/bin" directory.
+set script_dir_path=%~dp0
+
+:: Try to use original cmake, otherwise to make it relocatable, use any cmake found in PATH.
+set cmake_path=@CMAKE_COMMAND@
+if not exist "%cmake_path%" set cmake_path=cmake
+
+if NOT "%~2" == "" goto :showhelp
+if NOT "%~1" == "" (set PROJECT_DIR=%~1) else (set PROJECT_DIR=%cd%)
+
+"%cmake_path%" -DPROJECT_DIR="%PROJECT_DIR%" -P "%script_dir_path%\@__GlobalConfig_relative_path_from_bin_dir_to_cmake_config_dir@\QtInitProject.cmake"
+exit /b %errorlevel%
+
+:showhelp
+echo Usage
+echo.    qt-cmake-create <path/to/project>
+exit /b 1
diff --git a/bin/qt-cmake-create.in b/bin/qt-cmake-create.in
new file mode 100644
index 00000000..7865d0fe
--- /dev/null
+++ b/bin/qt-cmake-create.in
@@ -0,0 +1,29 @@
+#!/bin/sh
+
+HELP_MESSAGE="Usage
+    qt-cmake-create <path/to/project>"
+
+# The directory of this script is the expanded absolute path of the "$qt_prefix/bin" directory.
+script_dir_path=`dirname $0`
+script_dir_path=`(cd "$script_dir_path"; /bin/pwd)`
+
+# Try to use original cmake, otherwise to make it relocatable, use any cmake found in PATH.
+original_cmake_path="@CMAKE_COMMAND@"
+cmake_path=$original_cmake_path
+if ! test -f "$cmake_path"; then
+    cmake_path="cmake"
+fi
+
+if [ "$#" -gt 1 ]; then
+    echo "Invalid number of arguments"
+    echo "$HELP_MESSAGE"
+    exit 1
+fi
+
+if [ "$#" -gt 0 ]; then
+    PROJECT_DIR=$1
+else
+    PROJECT_DIR=$PWD
+fi
+exec "$cmake_path" -DPROJECT_DIR="$PROJECT_DIR" -P \
+    "$script_dir_path/@__GlobalConfig_relative_path_from_bin_dir_to_cmake_config_dir@/QtInitProject.cmake"
diff --git a/cmake/FindMimer.cmake b/cmake/FindMimer.cmake
new file mode 100644
index 00000000..5cbc6e69
--- /dev/null
+++ b/cmake/FindMimer.cmake
@@ -0,0 +1,98 @@
+# Copyright (C) 2022 The Qt Company Ltd.
+# Copyright (C) 2022 Mimer Information Technology
+# SPDX-License-Identifier: BSD-3-Clause
+
+# FindMimer
+# ---------
+# Try to locate the Mimer SQL client library
+if(NOT DEFINED MimerSQL_ROOT)
+    if(DEFINED ENV{MIMERSQL_DEV_ROOT})
+        set(MimerSQL_ROOT "$ENV{MIMERSQL_DEV_ROOT}")
+    endif()
+endif()
+
+if(NOT DEFINED MimerSQL_ROOT)
+    find_package(PkgConfig QUIET)
+endif()
+if(PkgConfig_FOUND AND NOT DEFINED MimerSQL_ROOT)
+    pkg_check_modules(PC_Mimer QUIET mimcontrol)
+    set(MimerSQL_include_dir_hints "${PC_MimerSQL_INCLUDEDIR}")
+    set(MimerSQL_library_hints "${PC_MimerSQL_LIBDIR}")
+else()
+    if(DEFINED MimerSQL_ROOT)
+        if(WIN32)
+            set(MimerSQL_include_dir_hints "${MimerSQL_ROOT}\\include")
+            if(CMAKE_SYSTEM_PROCESSOR MATCHES "^(x86|X86)$")
+                set(MimerSQL_library_hints "${MimerSQL_ROOT}\\lib\\x86")
+             elseif(CMAKE_SYSTEM_PROCESSOR MATCHES "^(amd64|AMD64)$")
+                set(MimerSQL_library_hints "${MimerSQL_ROOT}\\lib\\amd64")
+            else()
+                set(MimerSQL_library_hints "")
+            endif()
+        else()
+            set(MimerSQL_include_dir_hints "${MimerSQL_ROOT}/include")
+            set(MimerSQL_library_hints "${MimerSQL_ROOT}/lib")
+        endif()
+    else()
+        if(WIN32)
+            set(MimerSQL_include_dir_hints "C:\\MimerSQLDev\\include")
+            if(CMAKE_SYSTEM_PROCESSOR MATCHES "^(x86|X86)$")
+                set(MimerSQL_library_hints "C:\\MimerSQLDev\\lib\\x86")
+            elseif(CMAKE_SYSTEM_PROCESSOR MATCHES "^(amd64|AMD64)$")
+                set(MimerSQL_library_hints "C:\\MimerSQLDev\\lib\\amd64")
+            else()
+                set(MimerSQL_library_hints "")
+            endif()
+        elseif(APPLE AND ${CMAKE_SYSTEM_NAME} MATCHES "Darwin")
+            set(MimerSQL_library_hints "/usr/local/lib")
+            set(MimerSQL_include_dir_hints "/usr/local/include")
+        else()
+            set(MimerSQL_include_dir_hints "")
+            set(MimerSQL_library_hints "")
+        endif()
+    endif()
+endif()
+
+find_path(Mimer_INCLUDE_DIR
+    NAMES mimerapi.h
+    HINTS ${MimerSQL_include_dir_hints})
+
+if(WIN32)
+  if(CMAKE_SYSTEM_PROCESSOR MATCHES "^(x86|X86)$")
+    set(MIMER_LIBS_NAMES mimapi32)
+  elseif(CMAKE_SYSTEM_PROCESSOR MATCHES "^(amd64|AMD64)$")
+    set(MIMER_LIBS_NAMES mimapi64)
+  endif()
+else()
+  set(MIMER_LIBS_NAMES mimerapi)
+endif()
+
+find_library(Mimer_LIBRARIES
+    NAMES ${MIMER_LIBS_NAMES}
+    HINTS ${MimerSQL_library_hints})
+
+include(FindPackageHandleStandardArgs)
+
+find_package_handle_standard_args(Mimer
+    REQUIRED_VARS Mimer_LIBRARIES Mimer_INCLUDE_DIR)
+
+
+
+# Now try to get the include and library path.
+if(Mimer_FOUND)
+  set(Mimer_INCLUDE_DIRS ${Mimer_INCLUDE_DIR})
+  set(Mimer_LIBRARY_DIRS ${Mimer_LIBRARIES})
+  if (NOT TARGET MimerSQL::MimerSQL)
+    add_library(MimerSQL::MimerSQL UNKNOWN IMPORTED)
+    set_target_properties(MimerSQL::MimerSQL PROPERTIES
+      IMPORTED_LOCATION "${Mimer_LIBRARY_DIRS}"
+      INTERFACE_INCLUDE_DIRECTORIES "${Mimer_INCLUDE_DIRS}")
+  endif ()
+endif()
+
+mark_as_advanced(Mimer_INCLUDE_DIR Mimer_LIBRARIES)
+
+include(FeatureSummary)
+set_package_properties(MimerSQL PROPERTIES
+  URL "https://www.mimer.com"
+  DESCRIPTION "Mimer client library")
diff --git a/cmake/FindWrapResolv.cmake b/cmake/FindWrapResolv.cmake
new file mode 100644
index 00000000..a0d1e786
--- /dev/null
+++ b/cmake/FindWrapResolv.cmake
@@ -0,0 +1,53 @@
+# Copyright (C) 2022 The Qt Company Ltd.
+# Copyright (C) 2023 Intel Corpotation.
+# SPDX-License-Identifier: BSD-3-Clause
+
+# We can't create the same interface imported target multiple times, CMake will complain if we do
+# that. This can happen if the find_package call is done in multiple different subdirectories.
+if(TARGET WrapResolv::WrapResolv)
+    set(WrapResolv_FOUND ON)
+    return()
+endif()
+
+set(WrapResolv_FOUND OFF)
+
+include(CheckCXXSourceCompiles)
+include(CMakePushCheckState)
+
+if(QNX)
+    find_library(LIBRESOLV socket)
+else()
+    find_library(LIBRESOLV resolv)
+endif()
+
+cmake_push_check_state()
+if(LIBRESOLV)
+    list(APPEND CMAKE_REQUIRED_LIBRARIES "${LIBRESOLV}")
+endif()
+
+check_cxx_source_compiles("
+#include <netinet/in.h>
+#include <resolv.h>
+
+int main(int, char **argv)
+{
+    res_state statep;
+    int n = res_nmkquery(statep, 0, argv[1], 0, 0, NULL, 0, NULL, NULL, 0);
+    n = res_nsend(statep, NULL, 0, NULL, 0);
+    n = dn_expand(NULL, NULL, NULL, NULL, 0);
+    return n;
+}
+" HAVE_LIBRESOLV_FUNCTIONS)
+
+cmake_pop_check_state()
+
+if(HAVE_LIBRESOLV_FUNCTIONS)
+    set(WrapResolv_FOUND ON)
+    add_library(WrapResolv::WrapResolv INTERFACE IMPORTED)
+    if(LIBRESOLV)
+        target_link_libraries(WrapResolv::WrapResolv INTERFACE "${LIBRESOLV}")
+    endif()
+endif()
+
+include(FindPackageHandleStandardArgs)
+find_package_handle_standard_args(WrapResolv DEFAULT_MSG WrapResolv_FOUND)
diff --git a/cmake/FindWrapRt.cmake b/cmake/FindWrapRt.cmake
index 91651c32..b394b062 100644
--- a/cmake/FindWrapRt.cmake
+++ b/cmake/FindWrapRt.cmake
@@ -21,17 +21,31 @@ if(LIBRT)
 endif()
 
 check_cxx_source_compiles("
-#include <unistd.h>
 #include <time.h>
+#include <unistd.h>
 
 int main(int, char **) {
-    timespec ts; clock_gettime(CLOCK_REALTIME, &ts);
-}" HAVE_GETTIME)
+    struct timespec ts;
+    clock_gettime(CLOCK_REALTIME, &ts);
+    return 0;
+}
+" HAVE_GETTIME)
+
+check_cxx_source_compiles("
+#include <sys/types.h>
+#include <sys/mman.h>
+#include <fcntl.h>
+
+int main(int, char **) {
+    shm_open(\"test\", O_RDWR | O_CREAT | O_EXCL, 0666);
+    shm_unlink(\"test\");
+    return 0;
+}
+" HAVE_SHM_OPEN_SHM_UNLINK)
 
 cmake_pop_check_state()
 
-
-if(HAVE_GETTIME)
+if(HAVE_GETTIME OR HAVE_SHM_OPEN_SHM_UNLINK)
     set(WrapRt_FOUND ON)
     add_library(WrapRt::WrapRt INTERFACE IMPORTED)
     if (LIBRT)
diff --git a/cmake/FindWrapVulkanHeaders.cmake b/cmake/FindWrapVulkanHeaders.cmake
index 79f5dfc9..92510ae0 100644
--- a/cmake/FindWrapVulkanHeaders.cmake
+++ b/cmake/FindWrapVulkanHeaders.cmake
@@ -48,6 +48,26 @@ if(Vulkan_INCLUDE_DIR)
             target_include_directories(WrapVulkanHeaders::WrapVulkanHeaders INTERFACE
                 ${__qt_molten_vk_homebrew_include_path})
         endif()
+
+        # Check for homebrew vulkan-headers folder structure
+        # If instead of molten-vk folder, CMAKE_PREFIX_PATH points to Homebrew's
+        # vulkan-headers installation, then we will not be able to find molten-vk
+        # headers. If we assume that user has installed the molten-vk formula as
+        # well, then we might have a chance to pick it up like this.
+        if(Vulkan_INCLUDE_DIR MATCHES "/homebrew/Cellar/")
+            set(__qt_standalone_molten_vk_homebrew_include_path
+                    "${Vulkan_INCLUDE_DIR}/../../../../opt/molten-vk/include")
+        else()
+            set(__qt_standalone_molten_vk_homebrew_include_path
+                    "${Vulkan_INCLUDE_DIR}/../../molten-vk/include")
+        endif()
+        get_filename_component(
+            __qt_standalone_molten_vk_homebrew_include_path
+            "${__qt_standalone_molten_vk_homebrew_include_path}" ABSOLUTE)
+        if(EXISTS "${__qt_standalone_molten_vk_homebrew_include_path}")
+            target_include_directories(WrapVulkanHeaders::WrapVulkanHeaders INTERFACE
+                ${__qt_standalone_molten_vk_homebrew_include_path})
+        endif()
     endif()
 endif()
 
diff --git a/cmake/FindWrapZSTD.cmake b/cmake/FindWrapZSTD.cmake
index fb86c276..fb424236 100644
--- a/cmake/FindWrapZSTD.cmake
+++ b/cmake/FindWrapZSTD.cmake
@@ -28,10 +28,10 @@ include(FindPackageHandleStandardArgs)
 if(TARGET zstd::libzstd_static OR TARGET zstd::libzstd_shared)
     find_package_handle_standard_args(WrapZSTD
                                       REQUIRED_VARS zstd_VERSION VERSION_VAR zstd_VERSION)
-    if(TARGET zstd::libzstd_static)
-        set(zstdtargetsuffix "_static")
-    else()
+    if(TARGET zstd::libzstd_shared)
         set(zstdtargetsuffix "_shared")
+    else()
+        set(zstdtargetsuffix "_static")
     endif()
     if(NOT TARGET WrapZSTD::WrapZSTD)
         add_library(WrapZSTD::WrapZSTD INTERFACE IMPORTED)
diff --git a/cmake/ModuleDescription.json.in b/cmake/ModuleDescription.json.in
index 4d07bfae..93f9a5ed 100644
--- a/cmake/ModuleDescription.json.in
+++ b/cmake/ModuleDescription.json.in
@@ -7,6 +7,7 @@
         "compiler_target": "${CMAKE_CXX_COMPILER_TARGET}",
         "compiler_version": "${CMAKE_CXX_COMPILER_VERSION}",
         "cross_compiled": ${cross_compilation},
-        "target_system": "${CMAKE_SYSTEM_NAME}"
+        "target_system": "${CMAKE_SYSTEM_NAME}",
+        "architecture": "${TEST_architecture_arch}"
     }
 }
diff --git a/cmake/QtAutoDetect.cmake b/cmake/QtAutoDetect.cmake
index 07afc1a8..0e2ede24 100644
--- a/cmake/QtAutoDetect.cmake
+++ b/cmake/QtAutoDetect.cmake
@@ -8,6 +8,9 @@
 # Make sure to not run detection when building standalone tests, because the detection was already
 # done when initially configuring qtbase.
 
+# This needs to be here because QtAutoDetect loads before any other modules
+option(QT_USE_VCPKG "Enable the use of vcpkg" ON)
+
 function(qt_internal_ensure_static_qt_config)
     if(NOT DEFINED BUILD_SHARED_LIBS)
         set(BUILD_SHARED_LIBS OFF CACHE BOOL "Build Qt statically or dynamically" FORCE)
@@ -161,7 +164,7 @@ function(qt_auto_detect_android)
 endfunction()
 
 function(qt_auto_detect_vcpkg)
-    if(DEFINED ENV{VCPKG_ROOT})
+    if(QT_USE_VCPKG AND DEFINED ENV{VCPKG_ROOT})
         set(vcpkg_toolchain_file "$ENV{VCPKG_ROOT}/scripts/buildsystems/vcpkg.cmake")
         get_filename_component(vcpkg_toolchain_file "${vcpkg_toolchain_file}" ABSOLUTE)
 
@@ -174,8 +177,8 @@ function(qt_auto_detect_vcpkg)
         endif()
         set(CMAKE_TOOLCHAIN_FILE "${vcpkg_toolchain_file}" CACHE STRING "" FORCE)
         message(STATUS "Using vcpkg from $ENV{VCPKG_ROOT}")
-        if(DEFINED ENV{VCPKG_DEFAULT_TRIPLET} AND NOT DEFINED VCPKG_TARGET_TRIPLET)
-            set(VCPKG_TARGET_TRIPLET "$ENV{VCPKG_DEFAULT_TRIPLET}" CACHE STRING "")
+        if(DEFINED ENV{QT_VCPKG_TARGET_TRIPLET} AND NOT DEFINED VCPKG_TARGET_TRIPLET)
+            set(VCPKG_TARGET_TRIPLET "$ENV{QT_VCPKG_TARGET_TRIPLET}" CACHE STRING "")
             message(STATUS "Using vcpkg triplet ${VCPKG_TARGET_TRIPLET}")
         endif()
         unset(vcpkg_toolchain_file)
@@ -229,7 +232,9 @@ function(qt_auto_detect_ios)
         endif()
         set(CMAKE_OSX_ARCHITECTURES "${osx_architectures}" CACHE STRING "")
 
-        qt_internal_ensure_static_qt_config()
+        if(NOT DEFINED BUILD_SHARED_LIBS)
+            qt_internal_ensure_static_qt_config()
+        endif()
 
         # Disable qt rpaths for iOS, just like mkspecs/common/uikit.conf does, due to those
         # bundles not being able to use paths outside the app bundle. Not sure this is strictly
@@ -239,7 +244,15 @@ function(qt_auto_detect_ios)
 endfunction()
 
 function(qt_auto_detect_cmake_config)
-    if(CMAKE_CONFIGURATION_TYPES)
+    # If CMAKE_CONFIGURATION_TYPES are not set for the multi-config generator use Release and
+    # Debug configurations by default, instead of those are proposed by the CMake internal logic.
+    get_property(is_multi GLOBAL PROPERTY GENERATOR_IS_MULTI_CONFIG)
+    if(is_multi)
+        if(NOT CMAKE_CONFIGURATION_TYPES)
+            set(CMAKE_CONFIGURATION_TYPES Release Debug)
+            set(CMAKE_CONFIGURATION_TYPES "${CMAKE_CONFIGURATION_TYPES}" PARENT_SCOPE)
+        endif()
+
         # Allow users to specify this option.
         if(NOT QT_MULTI_CONFIG_FIRST_CONFIG)
             list(GET CMAKE_CONFIGURATION_TYPES 0 first_config_type)
@@ -476,6 +489,12 @@ function(qt_auto_detect_integrity)
     endif()
 endfunction()
 
+# Save the build type before project() might set one.
+# This allows us to determine if the user has set an explicit build type that we should use.
+function(qt_auto_detect_cmake_build_type)
+    set(__qt_auto_detect_cmake_build_type_before_project_call "${CMAKE_BUILD_TYPE}" PARENT_SCOPE)
+endfunction()
+
 # Let CMake load our custom platform modules.
 # CMake-provided platform modules take precedence.
 if(NOT QT_AVOID_CUSTOM_PLATFORM_MODULES)
@@ -495,3 +514,4 @@ qt_auto_detect_wasm()
 qt_auto_detect_win32_arm()
 qt_auto_detect_linux_x86()
 qt_auto_detect_integrity()
+qt_auto_detect_cmake_build_type()
diff --git a/cmake/QtBaseGlobalTargets.cmake b/cmake/QtBaseGlobalTargets.cmake
index cb5b6736..18116a35 100644
--- a/cmake/QtBaseGlobalTargets.cmake
+++ b/cmake/QtBaseGlobalTargets.cmake
@@ -216,6 +216,7 @@ qt_copy_or_install(FILES
                    cmake/QtAndroidHelpers.cmake
                    cmake/QtAppHelpers.cmake
                    cmake/QtAutogenHelpers.cmake
+                   cmake/QtBaseTopLevelHelpers.cmake
                    cmake/QtBuild.cmake
                    cmake/QtBuildInformation.cmake
                    cmake/QtCMakeHelpers.cmake
@@ -332,6 +333,7 @@ set(__public_cmake_helpers
     cmake/QtCopyFileIfDifferent.cmake
     cmake/QtFeature.cmake
     cmake/QtFeatureCommon.cmake
+    cmake/QtInitProject.cmake
     cmake/QtPublicAppleHelpers.cmake
     cmake/QtPublicCMakeHelpers.cmake
     cmake/QtPublicCMakeVersionHelpers.cmake
@@ -395,17 +397,30 @@ if(QT_WILL_INSTALL)
     )
 endif()
 
-if(MACOS)
-    qt_copy_or_install(FILES
-        cmake/macos/MacOSXBundleInfo.plist.in
-        DESTINATION "${__GlobalConfig_install_dir}/macos"
+if(APPLE)
+    if(MACOS)
+        set(platform_shortname "macos")
+    elseif(IOS)
+        set(platform_shortname "ios")
+    endif()
+
+    qt_copy_or_install(FILES "cmake/${platform_shortname}/Info.plist.app.in"
+        DESTINATION "${__GlobalConfig_install_dir}/${platform_shortname}"
     )
-elseif(IOS)
-    qt_copy_or_install(FILES
-        cmake/ios/Info.plist.app.in
-        cmake/ios/LaunchScreen.storyboard
-        DESTINATION "${__GlobalConfig_install_dir}/ios"
+    # For examples built as part of prefix build before install
+    file(COPY "cmake/${platform_shortname}/Info.plist.app.in"
+        DESTINATION "${__GlobalConfig_build_dir}/${platform_shortname}"
     )
+
+    if(IOS)
+        qt_copy_or_install(FILES "cmake/ios/LaunchScreen.storyboard"
+            DESTINATION "${__GlobalConfig_install_dir}/ios"
+        )
+        # For examples built as part of prefix build before install
+        file(COPY "cmake/ios/LaunchScreen.storyboard"
+            DESTINATION "${__GlobalConfig_build_dir}/ios"
+        )
+    endif()
 elseif(WASM)
     configure_file("${CMAKE_CURRENT_SOURCE_DIR}/util/wasm/wasmtestrunner/qt-wasmtestrunner.py"
         "${QT_BUILD_DIR}/${INSTALL_LIBEXECDIR}/qt-wasmtestrunner.py" @ONLY)
diff --git a/cmake/QtBaseTopLevelHelpers.cmake b/cmake/QtBaseTopLevelHelpers.cmake
new file mode 100644
index 00000000..27f0852b
--- /dev/null
+++ b/cmake/QtBaseTopLevelHelpers.cmake
@@ -0,0 +1,85 @@
+# Copyright (C) 2023 The Qt Company Ltd.
+# SPDX-License-Identifier: BSD-3-Clause
+
+# Depends on __qt6_qtbase_src_path being set in the top-level dir.
+macro(qt_internal_top_level_setup_autodetect)
+    # Run platform auto-detection /before/ the first project() call and thus
+    # before the toolchain file is loaded.
+    # Don't run auto-detection when doing standalone tests. In that case, the detection
+    # results are taken from either QtBuildInternals or the qt.toolchain.cmake file.
+
+    if(NOT QT_BUILD_STANDALONE_TESTS)
+        set(__qt6_auto_detect_path "${__qt6_qtbase_src_path}/cmake/QtAutoDetect.cmake")
+        if(NOT EXISTS "${__qt6_auto_detect_path}")
+            message(FATAL_ERROR "Required file does not exist: '${__qt6_auto_detect_path}'")
+        endif()
+        include("${__qt6_auto_detect_path}")
+    endif()
+endmacro()
+
+macro(qt_internal_top_level_setup_after_project)
+    # TODO: Remove this variable once the top-level calls this function and
+    # qt_internal_qt_configure_end is not called in qt_print_build_instructions anymore.
+    set(__qt6_top_level_after_project_called TRUE)
+
+    qt_internal_top_level_setup_testing()
+endmacro()
+
+macro(qt_internal_top_level_setup_testing)
+    # Required so we can call ctest from the root build directory
+    enable_testing()
+endmacro()
+
+# Depends on __qt6_qtbase_src_path being set in the top-level dir.
+macro(qt_internal_top_level_setup_cmake_module_path)
+    if (NOT QT_BUILD_STANDALONE_TESTS)
+        set(__qt6_cmake_module_path "${__qt6_qtbase_src_path}/cmake")
+        if(NOT EXISTS "${__qt6_cmake_module_path}")
+            message(FATAL_ERROR "Required directory does not exist: '${__qt6_cmake_module_path}'")
+        endif()
+
+        list(APPEND CMAKE_MODULE_PATH "${__qt6_cmake_module_path}")
+
+        list(APPEND CMAKE_MODULE_PATH
+            "${__qt6_cmake_module_path}/3rdparty/extra-cmake-modules/find-modules")
+        list(APPEND CMAKE_MODULE_PATH "${__qt6_cmake_module_path}/3rdparty/kwin")
+    endif()
+endmacro()
+
+macro(qt_internal_top_level_before_build_submodules)
+    qt_internal_top_level_setup_no_create_targets()
+endmacro()
+
+macro(qt_internal_top_level_setup_no_create_targets)
+    # Also make sure the CMake config files do not recreate the already-existing targets
+    if (NOT QT_BUILD_STANDALONE_TESTS)
+        set(QT_NO_CREATE_TARGETS TRUE)
+    endif()
+endmacro()
+
+macro(qt_internal_top_level_end)
+    qt_internal_print_top_level_info()
+
+    # Depends on QtBuildInternalsConfig being included, which is the case whenver any repo is
+    # configured.
+    qt_internal_qt_configure_end()
+endmacro()
+
+function(qt_internal_print_top_level_info)
+    if(NOT QT_BUILD_STANDALONE_TESTS)
+        # Display a summary of everything
+        include(QtBuildInformation)
+        include(QtPlatformSupport)
+        qt_print_feature_summary()
+        qt_print_build_instructions()
+    endif()
+endfunction()
+
+macro(qt_internal_top_level_after_add_subdirectory)
+    if(module STREQUAL "qtbase")
+        if (NOT QT_BUILD_STANDALONE_TESTS)
+            list(APPEND CMAKE_PREFIX_PATH "${QtBase_BINARY_DIR}/${INSTALL_LIBDIR}/cmake")
+            list(APPEND CMAKE_FIND_ROOT_PATH "${QtBase_BINARY_DIR}")
+        endif()
+    endif()
+endmacro()
diff --git a/cmake/QtBuild.cmake b/cmake/QtBuild.cmake
index 97aa76fe..1dc576d2 100644
--- a/cmake/QtBuild.cmake
+++ b/cmake/QtBuild.cmake
@@ -281,7 +281,7 @@ qt_setup_tool_path_command()
 # Platform define path, etc.
 if(WIN32)
     set(QT_DEFAULT_PLATFORM_DEFINITIONS WIN32 _ENABLE_EXTENDED_ALIGNED_STORAGE)
-    if(CMAKE_SIZEOF_VOID_P EQUAL 8)
+    if(QT_64BIT)
         list(APPEND QT_DEFAULT_PLATFORM_DEFINITIONS WIN64 _WIN64)
     endif()
 
@@ -434,7 +434,7 @@ set(QT_TOP_LEVEL_SOURCE_DIR "${CMAKE_CURRENT_SOURCE_DIR}")
 # Prevent warnings about object files without any symbols. This is a common
 # thing in Qt as we tend to build files unconditionally, and then use ifdefs
 # to compile out parts that are not relevant.
-if(CMAKE_HOST_APPLE AND APPLE)
+if(CMAKE_CXX_COMPILER_ID MATCHES "AppleClang")
     foreach(lang ASM C CXX)
         # We have to tell 'ar' to not run ranlib by itself, by passing the 'S' option
         set(CMAKE_${lang}_ARCHIVE_CREATE "<CMAKE_AR> qcS <TARGET> <LINK_FLAGS> <OBJECTS>")
@@ -577,11 +577,6 @@ endif()
 _qt_internal_determine_if_host_info_package_needed(__qt_build_requires_host_info_package)
 _qt_internal_find_host_info_package("${__qt_build_requires_host_info_package}")
 
-# Create tool script wrapper if necessary.
-# TODO: Remove once all direct usages of QT_TOOL_COMMAND_WRAPPER_PATH are replaced with function
-# calls.
-_qt_internal_generate_tool_command_wrapper()
-
 # This sets up the poor man's scope finalizer mechanism.
 # For newer CMake versions, we use cmake_language(DEFER CALL) instead.
 if(CMAKE_VERSION VERSION_LESS "3.19.0")
diff --git a/cmake/QtBuildInformation.cmake b/cmake/QtBuildInformation.cmake
index 6929f913..063c5866 100644
--- a/cmake/QtBuildInformation.cmake
+++ b/cmake/QtBuildInformation.cmake
@@ -111,6 +111,13 @@ from the build directory")
     if(QT_SUPERBUILD)
         qt_internal_save_previously_visited_packages()
     endif()
+
+    # TODO: Abuse qt_print_build_instructions being called as the last command in a top-level build.
+    # Instead we should call this explicitly at the end of the top-level project.
+    # TODO: Remove this once the top-level calls qt_internal_top_level_setup_after_project
+    if(QT_SUPERBUILD AND NOT __qt6_top_level_after_project_called)
+        qt_internal_qt_configure_end()
+    endif()
 endfunction()
 
 function(qt_configure_print_summary_helper summary_reports force_show)
diff --git a/cmake/QtBuildInternals/QtBuildInternalsConfig.cmake b/cmake/QtBuildInternals/QtBuildInternalsConfig.cmake
index fe4cbe3e..e8e98154 100644
--- a/cmake/QtBuildInternals/QtBuildInternalsConfig.cmake
+++ b/cmake/QtBuildInternals/QtBuildInternalsConfig.cmake
@@ -105,6 +105,30 @@ endif()
 # build.
 include(QtPlatformSupport)
 
+# Set FEATURE_${feature} if INPUT_${feature} is set in certain circumstances.
+#
+# Needs to be in QtBuildInternalsConfig.cmake instead of QtFeature.cmake because it's used in
+# qt_build_internals_disable_pkg_config_if_needed.
+function(qt_internal_compute_feature_value_from_possible_input feature)
+    # If FEATURE_ is not defined try to use the INPUT_ variable to enable/disable feature.
+    # If FEATURE_ is defined and the configure script is being used (so
+    # QT_INTERNAL_CALLED_FROM_CONFIGURE is TRUE), ignore the FEATURE_ variable, and take into
+    # account the INPUT_ variable instead, because a command line argument takes priority over
+    # a pre-cached FEATURE_ variable.
+    if((NOT DEFINED FEATURE_${feature} OR QT_INTERNAL_CALLED_FROM_CONFIGURE)
+        AND DEFINED INPUT_${feature}
+        AND NOT "${INPUT_${feature}}" STREQUAL "undefined"
+        AND NOT "${INPUT_${feature}}" STREQUAL "")
+        if(INPUT_${feature})
+            set(FEATURE_${feature} ON)
+        else()
+            set(FEATURE_${feature} OFF)
+        endif()
+
+        set(FEATURE_${feature} "${FEATURE_${feature}}" PARENT_SCOPE)
+    endif()
+endfunction()
+
 function(qt_build_internals_disable_pkg_config_if_needed)
     # pkg-config should not be used by default on Darwin and Windows platforms (and QNX), as defined
     # in the qtbase/configure.json. Unfortunately by the time the feature is evaluated there are
@@ -131,15 +155,7 @@ function(qt_build_internals_disable_pkg_config_if_needed)
     endif()
 
     # Features won't have been evaluated yet if this is the first run, have to evaluate this here
-    if ((NOT DEFINED "FEATURE_pkg_config") AND (DEFINED "INPUT_pkg_config")
-            AND (NOT "${INPUT_pkg_config}" STREQUAL "undefined")
-            AND (NOT "${INPUT_pkg_config}" STREQUAL ""))
-        if(INPUT_pkg_config)
-            set(FEATURE_pkg_config ON)
-        else()
-            set(FEATURE_pkg_config OFF)
-        endif()
-    endif()
+    qt_internal_compute_feature_value_from_possible_input(pkg_config)
 
     # If user explicitly specified a value for the feature, honor it, even if it might break
     # the build.
@@ -296,7 +312,27 @@ function(qt_build_internals_add_toplevel_targets)
                 COMMENT "Building everything in ${qt_repo_targets_name}/${qt_repo_target_basename}")
             add_dependencies("${qt_repo_target_name}" ${qt_repo_targets})
             list(APPEND qt_repo_target_all "${qt_repo_target_name}")
+
+            # Create special dependency target for External Project examples excluding targets
+            # marked as skipped.
+            set(qt_repo_target_name
+                "${qt_repo_targets_name}_${qt_repo_target_basename}_for_examples")
+            add_custom_target("${qt_repo_target_name}")
+
+            set(unskipped_targets "")
+            foreach(target IN LISTS qt_repo_targets)
+                if(TARGET "${target}")
+                    qt_internal_is_target_skipped_for_examples("${target}" is_skipped)
+                    if(NOT is_skipped)
+                        list(APPEND unskipped_targets "${target}")
+                    endif()
+                endif()
+            endforeach()
+            if(unskipped_targets)
+                add_dependencies("${qt_repo_target_name}" ${unskipped_targets})
+            endif()
         endif()
+
     endforeach()
     if (qt_repo_target_all)
         # Note qt_repo_targets_name is different from qt_repo_target_name that is used above.
@@ -570,9 +606,27 @@ macro(qt_build_repo_end)
         set(QT_INTERNAL_FRESH_REQUESTED "FALSE" CACHE INTERNAL "")
     endif()
 
+    if(NOT QT_SUPERBUILD)
+        qt_internal_qt_configure_end()
+    endif()
+
     list(POP_BACK CMAKE_MESSAGE_CONTEXT)
 endmacro()
 
+# Function called either at the end of per-repo configuration, or at the end of configuration of
+# a super build.
+# At the moment it is called before examples are configured in a per-repo build. We might want
+# to change that at some point if needed.
+function(qt_internal_qt_configure_end)
+    # If Qt is configued via the configure script, remove the marker variable, so that any future
+    # reconfigurations that are done by calling cmake directly don't trigger configure specific
+    # logic.
+    unset(QT_INTERNAL_CALLED_FROM_CONFIGURE CACHE)
+
+    # Clean up stale feature input values.
+    qt_internal_clean_feature_inputs()
+endfunction()
+
 macro(qt_build_repo)
     qt_build_repo_begin(${ARGN})
 
@@ -856,7 +910,7 @@ macro(qt_examples_build_begin)
         set(QT_EXAMPLE_DEPENDENCIES ${qt_repo_plugins_recursive} ${arg_DEPENDS})
 
         if(TARGET ${qt_repo_targets_name}_src)
-            list(APPEND QT_EXAMPLE_DEPENDENCIES ${qt_repo_targets_name}_src)
+            list(APPEND QT_EXAMPLE_DEPENDENCIES ${qt_repo_targets_name}_src_for_examples)
         endif()
 
         if(TARGET ${qt_repo_targets_name}_tools)
@@ -980,19 +1034,118 @@ set(CMAKE_INSTALL_PREFIX \"\${_qt_internal_examples_cmake_install_prefix_backup}
     set(CMAKE_UNITY_BUILD ${QT_UNITY_BUILD})
 endmacro()
 
+# Allows building an example either as an ExternalProject or in-tree with the Qt build.
+# Also allows installing the example sources.
 function(qt_internal_add_example subdir)
-    if(NOT QT_IS_EXTERNAL_EXAMPLES_BUILD)
-        qt_internal_add_example_in_tree(${ARGV})
-    else()
-        qt_internal_add_example_external_project(${ARGV})
+    # Pre-compute unique example name based on the subdir, in case of target name clashes.
+    qt_internal_get_example_unique_name(unique_example_name "${subdir}")
+
+    # QT_INTERNAL_NO_CONFIGURE_EXAMPLES is not meant to be used by Qt builders, it's here for faster
+    # testing of the source installation code path for build system engineers.
+    if(NOT QT_INTERNAL_NO_CONFIGURE_EXAMPLES)
+        if(NOT QT_IS_EXTERNAL_EXAMPLES_BUILD)
+            qt_internal_add_example_in_tree("${subdir}")
+        else()
+            qt_internal_add_example_external_project("${subdir}"
+                NAME "${unique_example_name}")
+        endif()
     endif()
+
+    if(QT_INSTALL_EXAMPLES_SOURCES)
+        string(TOLOWER ${PROJECT_NAME} project_name_lower)
+
+        qt_internal_install_example_sources("${subdir}"
+            NAME "${unique_example_name}"
+            REPO_NAME "${project_name_lower}")
+    endif()
+endfunction()
+
+# Gets the install prefix where an example should be installed.
+# Used for computing the final installation path.
+function(qt_internal_get_example_install_prefix out_var)
+    # Allow customizing the installation path of the examples. Will be used in CI.
+    if(QT_INTERNAL_EXAMPLES_INSTALL_PREFIX)
+        set(qt_example_install_prefix "${QT_INTERNAL_EXAMPLES_INSTALL_PREFIX}")
+    else()
+        set(qt_example_install_prefix "${CMAKE_INSTALL_PREFIX}/${INSTALL_EXAMPLESDIR}")
+    endif()
+    file(TO_CMAKE_PATH "${qt_example_install_prefix}" qt_example_install_prefix)
+    set(${out_var} "${qt_example_install_prefix}" PARENT_SCOPE)
+endfunction()
+
+# Gets the install prefix where an example's sources should be installed.
+# Used for computing the final installation path.
+function(qt_internal_get_examples_sources_install_prefix out_var)
+    # Allow customizing the installation path of the examples source specifically.
+    if(QT_INTERNAL_EXAMPLES_SOURCES_INSTALL_PREFIX)
+        set(qt_example_install_prefix "${QT_INTERNAL_EXAMPLES_SOURCES_INSTALL_PREFIX}")
+    else()
+        qt_internal_get_example_install_prefix(qt_example_install_prefix)
+    endif()
+    file(TO_CMAKE_PATH "${qt_example_install_prefix}" qt_example_install_prefix)
+    set(${out_var} "${qt_example_install_prefix}" PARENT_SCOPE)
+endfunction()
+
+# Gets the relative path of an example, relative to the current repo's examples source dir.
+# QT_EXAMPLE_BASE_DIR is meant to be already set in a parent scope.
+function(qt_internal_get_example_rel_path out_var subdir)
+    file(RELATIVE_PATH example_rel_path
+         "${QT_EXAMPLE_BASE_DIR}" "${CMAKE_CURRENT_SOURCE_DIR}/${subdir}")
+    set(${out_var} "${example_rel_path}" PARENT_SCOPE)
+endfunction()
+
+# Gets the install path where an example should be installed.
+function(qt_internal_get_example_install_path out_var subdir)
+    qt_internal_get_example_install_prefix(qt_example_install_prefix)
+    qt_internal_get_example_rel_path(example_rel_path "${subdir}")
+    set(example_install_path "${qt_example_install_prefix}/${example_rel_path}")
+
+    set(${out_var} "${example_install_path}" PARENT_SCOPE)
+endfunction()
+
+# Gets the install path where an example's sources should be installed.
+function(qt_internal_get_examples_sources_install_path out_var subdir)
+    qt_internal_get_examples_sources_install_prefix(qt_example_install_prefix)
+    qt_internal_get_example_rel_path(example_rel_path "${subdir}")
+    set(example_install_path "${qt_example_install_prefix}/${example_rel_path}")
+
+    set(${out_var} "${example_install_path}" PARENT_SCOPE)
+endfunction()
+
+# Get the unique name of an example project based on its subdir or explicitly given name.
+# Makes the name unique by appending a short sha1 hash of the relative path of the example
+# if a target of the same name already exist.
+function(qt_internal_get_example_unique_name out_var subdir)
+    qt_internal_get_example_rel_path(example_rel_path "${subdir}")
+
+    set(name "${subdir}")
+
+    # qtdeclarative has calls like qt_internal_add_example(imagine/automotive)
+    # so passing a nested subdirectory. Custom targets (and thus ExternalProjects) can't contain
+    # slashes, so extract the last part of the path to be used as a name.
+    if(name MATCHES "/")
+        string(REPLACE "/" ";" exploded_path "${name}")
+        list(POP_BACK exploded_path last_dir)
+        if(NOT last_dir)
+            message(FATAL_ERROR "Example subdirectory must have a name.")
+        else()
+            set(name "${last_dir}")
+        endif()
+    endif()
+
+    # Likely a clash with an example subdir ExternalProject custom target of the same name in a
+    # top-level build.
+    if(TARGET "${name}")
+        string(SHA1 rel_path_hash "${example_rel_path}")
+        string(SUBSTRING "${rel_path_hash}" 0 4 short_hash)
+        set(name "${name}-${short_hash}")
+    endif()
+
+    set(${out_var} "${name}" PARENT_SCOPE)
 endfunction()
 
 # Use old non-ExternalProject approach, aka build in-tree with the Qt build.
 function(qt_internal_add_example_in_tree subdir)
-    file(RELATIVE_PATH example_rel_path
-         "${QT_EXAMPLE_BASE_DIR}" "${CMAKE_CURRENT_SOURCE_DIR}/${subdir}")
-
     # Unset the default CMAKE_INSTALL_PREFIX that's generated in
     #   ${CMAKE_CURRENT_BINARY_DIR}/cmake_install.cmake
     # so we can override it with a different value in
@@ -1006,15 +1159,8 @@ unset(CMAKE_INSTALL_PREFIX)
 
     # Override the install prefix in the subdir cmake_install.cmake, so that
     # relative install(TARGETS DESTINATION) calls in example projects install where we tell them to.
-    # Allow customizing the installation path of the examples. Will be used in CI.
-    if(QT_INTERNAL_EXAMPLES_INSTALL_PREFIX)
-        set(qt_example_install_prefix "${QT_INTERNAL_EXAMPLES_INSTALL_PREFIX}")
-    else()
-        set(qt_example_install_prefix "${CMAKE_INSTALL_PREFIX}/${INSTALL_EXAMPLESDIR}")
-    endif()
-    file(TO_CMAKE_PATH "${qt_example_install_prefix}" qt_example_install_prefix)
-
-    set(CMAKE_INSTALL_PREFIX "${qt_example_install_prefix}/${example_rel_path}")
+    qt_internal_get_example_install_path(example_install_path "${subdir}")
+    set(CMAKE_INSTALL_PREFIX "${example_install_path}")
 
     # Make sure unclean example projects have their INSTALL_EXAMPLEDIR set to "."
     # Won't have any effect on example projects that don't use INSTALL_EXAMPLEDIR.
@@ -1024,7 +1170,7 @@ unset(CMAKE_INSTALL_PREFIX)
     # TODO: Remove once all repositories use qt_internal_add_example instead of add_subdirectory.
     set(QT_INTERNAL_SET_EXAMPLE_INSTALL_DIR_TO_DOT ON)
 
-    add_subdirectory(${subdir} ${ARGN})
+    add_subdirectory(${subdir})
 endfunction()
 
 function(qt_internal_add_example_external_project subdir)
@@ -1034,33 +1180,6 @@ function(qt_internal_add_example_external_project subdir)
 
     cmake_parse_arguments(PARSE_ARGV 1 arg "${options}" "${singleOpts}" "${multiOpts}")
 
-    file(RELATIVE_PATH example_rel_path
-         "${QT_EXAMPLE_BASE_DIR}" "${CMAKE_CURRENT_SOURCE_DIR}/${subdir}")
-
-    if(NOT arg_NAME)
-        set(arg_NAME "${subdir}")
-
-        # qtdeclarative has calls like qt_internal_add_example(imagine/automotive)
-        # so passing a nested subdirectory. Custom targets (and thus ExternalProjects) can't contain
-        # slashes, so extract the last part of the path to be used as a name.
-        if(arg_NAME MATCHES "/")
-            string(REPLACE "/" ";" exploded_path "${arg_NAME}")
-            list(POP_BACK exploded_path last_dir)
-            if(NOT last_dir)
-                message(FATAL_ERROR "Example subdirectory must have a name.")
-            else()
-                set(arg_NAME "${last_dir}")
-            endif()
-        endif()
-    endif()
-
-    # Likely a clash with an example subdir ExternalProject custom target of the same name.
-    if(TARGET "${arg_NAME}")
-        string(SHA1 rel_path_hash "${example_rel_path}")
-        string(SUBSTRING "${rel_path_hash}" 0 4 short_hash)
-        set(arg_NAME "${arg_NAME}-${short_hash}")
-    endif()
-
     # TODO: Fix example builds when using Conan / install prefixes are different for each repo.
     if(QT_SUPERBUILD OR QtBase_BINARY_DIR)
         # When doing a top-level build or when building qtbase,
@@ -1281,15 +1400,7 @@ function(qt_internal_add_example_external_project subdir)
     #    example_source_dir, use _qt_internal_override_example_install_dir_to_dot to ensure
     #    INSTALL_EXAMPLEDIR does not interfere.
 
-    # Allow customizing the installation path of the examples. Will be used in CI.
-    if(QT_INTERNAL_EXAMPLES_INSTALL_PREFIX)
-        set(qt_example_install_prefix "${QT_INTERNAL_EXAMPLES_INSTALL_PREFIX}")
-    else()
-        set(qt_example_install_prefix "${CMAKE_INSTALL_PREFIX}/${INSTALL_EXAMPLESDIR}")
-    endif()
-    file(TO_CMAKE_PATH "${qt_example_install_prefix}" qt_example_install_prefix)
-
-    set(example_install_prefix "${qt_example_install_prefix}/${example_rel_path}")
+    qt_internal_get_example_install_path(example_install_path "${subdir}")
 
     set(ep_binary_dir    "${CMAKE_CURRENT_BINARY_DIR}/${subdir}")
 
@@ -1304,7 +1415,7 @@ function(qt_internal_add_example_external_project subdir)
         PREFIX           "${CMAKE_CURRENT_BINARY_DIR}/${subdir}-ep"
         STAMP_DIR        "${CMAKE_CURRENT_BINARY_DIR}/${subdir}-ep/stamp"
         BINARY_DIR       "${ep_binary_dir}"
-        INSTALL_DIR      "${example_install_prefix}"
+        INSTALL_DIR      "${example_install_path}"
         INSTALL_COMMAND  ""
         ${build_command}
         TEST_COMMAND     ""
@@ -1358,6 +1469,54 @@ execute_process(
 
 endfunction()
 
+function(qt_internal_install_example_sources subdir)
+    set(options "")
+    set(single_args NAME REPO_NAME)
+    set(multi_args "")
+
+    cmake_parse_arguments(PARSE_ARGV 1 arg "${options}" "${single_args}" "${multi_args}")
+
+    qt_internal_get_examples_sources_install_path(example_install_path "${subdir}")
+
+    # The trailing slash is important to avoid duplicate nested directory names.
+    set(example_source_dir "${subdir}/")
+
+    # Allow controlling whether sources should be part of the default install target.
+    if(QT_INSTALL_EXAMPLES_SOURCES_BY_DEFAULT)
+        set(exclude_from_all "")
+    else()
+        set(exclude_from_all "EXCLUDE_FROM_ALL")
+    endif()
+
+    # Create an install component for all example sources. Can also be part of the default
+    # install target if EXCLUDE_FROM_ALL is not passed.
+    install(
+        DIRECTORY "${example_source_dir}"
+        DESTINATION "${example_install_path}"
+        COMPONENT "examples_sources"
+        USE_SOURCE_PERMISSIONS
+        ${exclude_from_all}
+    )
+
+    # Also create a specific install component just for this repo's examples.
+    install(
+        DIRECTORY "${example_source_dir}"
+        DESTINATION "${example_install_path}"
+        COMPONENT "examples_sources_${arg_REPO_NAME}"
+        USE_SOURCE_PERMISSIONS
+        EXCLUDE_FROM_ALL
+    )
+
+    # Also create a specific install component just for the current example's sources.
+    install(
+        DIRECTORY "${example_source_dir}"
+        DESTINATION "${example_install_path}"
+        COMPONENT "examples_sources_${arg_NAME}"
+        USE_SOURCE_PERMISSIONS
+        EXCLUDE_FROM_ALL
+    )
+endfunction()
+
 if ("STANDALONE_TEST" IN_LIST Qt6BuildInternals_FIND_COMPONENTS)
     include(${CMAKE_CURRENT_LIST_DIR}/QtStandaloneTestTemplateProject/Main.cmake)
     if (NOT PROJECT_VERSION_MAJOR)
diff --git a/cmake/QtBuildInternalsExtra.cmake.in b/cmake/QtBuildInternalsExtra.cmake.in
index 2dc906b6..c035a216 100644
--- a/cmake/QtBuildInternalsExtra.cmake.in
+++ b/cmake/QtBuildInternalsExtra.cmake.in
@@ -103,6 +103,9 @@ set(QT_BUILD_EXAMPLES_AS_EXTERNAL "@QT_BUILD_EXAMPLES_AS_EXTERNAL@" CACHE BOOL
 # Propagate usage of ccache.
 set(QT_USE_CCACHE @QT_USE_CCACHE@ CACHE BOOL "Enable the use of ccache")
 
+# Propagate usage of vcpkg, ON by default.
+set(QT_USE_VCPKG @QT_USE_VCPKG@ CACHE BOOL "Enable the use of vcpkg")
+
 # Propagate usage of unity build.
 set(QT_UNITY_BUILD @QT_UNITY_BUILD@ CACHE BOOL "Enable unity (jumbo) build")
 set(QT_UNITY_BUILD_BATCH_SIZE "@QT_UNITY_BUILD_BATCH_SIZE@" CACHE STRING "Unity build batch size")
@@ -163,6 +166,7 @@ function(qt_internal_force_set_cmake_build_type_conditionally value)
         AND NOT QT_NO_FORCE_SET_CMAKE_BUILD_TYPE
         AND NOT __qt_internal_extras_is_multi_config)
         set(CMAKE_BUILD_TYPE "${value}" CACHE STRING "Choose the type of build." FORCE)
+        set(__qt_build_internals_cmake_build_type "${value}" PARENT_SCOPE)
     endif()
 endfunction()
 
diff --git a/cmake/QtCMakeVersionHelpers.cmake b/cmake/QtCMakeVersionHelpers.cmake
index c17a75e2..322e58ee 100644
--- a/cmake/QtCMakeVersionHelpers.cmake
+++ b/cmake/QtCMakeVersionHelpers.cmake
@@ -14,6 +14,8 @@ function(qt_internal_get_supported_min_cmake_version_for_building_qt out_var)
         set(supported_version "${QT_SUPPORTED_MIN_CMAKE_VERSION_FOR_BUILDING_QT}")
 
     # We're building qtbase so the values come from .cmake.conf.
+    elseif(APPLE)
+        set(supported_version "${QT_SUPPORTED_MIN_CMAKE_VERSION_FOR_BUILDING_QT_APPLE}")
     elseif(BUILD_SHARED_LIBS)
         set(supported_version "${QT_SUPPORTED_MIN_CMAKE_VERSION_FOR_BUILDING_QT_SHARED}")
     else()
@@ -30,7 +32,9 @@ function(qt_internal_get_supported_min_cmake_version_for_using_qt out_var)
             "It should have been set by this point.")
     endif()
 
-    if(BUILD_SHARED_LIBS)
+    if(APPLE)
+        set(supported_version "${QT_SUPPORTED_MIN_CMAKE_VERSION_FOR_USING_QT_APPLE}")
+    elseif(BUILD_SHARED_LIBS)
         set(supported_version "${QT_SUPPORTED_MIN_CMAKE_VERSION_FOR_USING_QT_SHARED}")
     else()
         set(supported_version "${QT_SUPPORTED_MIN_CMAKE_VERSION_FOR_USING_QT_STATIC}")
diff --git a/cmake/QtCompilerOptimization.cmake b/cmake/QtCompilerOptimization.cmake
index a093ed4d..e1d363af 100644
--- a/cmake/QtCompilerOptimization.cmake
+++ b/cmake/QtCompilerOptimization.cmake
@@ -92,10 +92,10 @@ endif()
 
 # Windows MSVC
 if(MSVC)
-    set(QT_CFLAGS_OPTIMIZE "-O2")
+    set(QT_CFLAGS_OPTIMIZE "-O2 -Ob3") # -Ob3 was introduced in Visual Studio 2019 version 16.0
     set(QT_CFLAGS_OPTIMIZE_DEBUG "-Od")
     set(QT_CFLAGS_OPTIMIZE_SIZE "-O1")
-    set(QT_CFLAGS_OPTIMIZE_VALID_VALUES "/O2" "/O1" "/Od" "/Ob0" "/Ob1" "/Ob2" "/O0" "-O0")
+    set(QT_CFLAGS_OPTIMIZE_VALID_VALUES "/O2" "/O1" "/Od" "/Ob0" "/Ob1" "/Ob2" "/Ob3" "/O0" "-O0")
 
     if(CLANG)
         set(QT_CFLAGS_OPTIMIZE_FULL "/clang:-O3")
diff --git a/cmake/QtConfig.cmake.in b/cmake/QtConfig.cmake.in
index 2e498284..ba287447 100644
--- a/cmake/QtConfig.cmake.in
+++ b/cmake/QtConfig.cmake.in
@@ -29,13 +29,12 @@ list(APPEND CMAKE_MODULE_PATH "${_qt_import_prefix}")
 list(APPEND CMAKE_MODULE_PATH "${_qt_import_prefix}/3rdparty/extra-cmake-modules/find-modules")
 list(APPEND CMAKE_MODULE_PATH "${_qt_import_prefix}/3rdparty/kwin")
 
-if(APPLE AND (NOT CMAKE_SYSTEM_NAME OR CMAKE_SYSTEM_NAME STREQUAL "Darwin"))
-    # Add module directory to pick up custom Info.plist template for macOS
-    list(APPEND CMAKE_MODULE_PATH "${_qt_import_prefix}/macos")
-elseif(APPLE AND CMAKE_SYSTEM_NAME STREQUAL "iOS")
-    # Add module directory to pick up custom Info.plist template for iOS
-    set(__qt_internal_cmake_ios_support_files_path "${_qt_import_prefix}/ios")
-    list(APPEND CMAKE_MODULE_PATH "${__qt_internal_cmake_ios_support_files_path}")
+if(APPLE)
+    if(NOT CMAKE_SYSTEM_NAME OR CMAKE_SYSTEM_NAME STREQUAL "Darwin")
+        set(__qt_internal_cmake_apple_support_files_path "${_qt_import_prefix}/macos")
+    elseif(CMAKE_SYSTEM_NAME STREQUAL "iOS")
+        set(__qt_internal_cmake_apple_support_files_path "${_qt_import_prefix}/ios")
+    endif()
 endif()
 
 # Public helpers available to all Qt packages.
diff --git a/cmake/QtExecutableHelpers.cmake b/cmake/QtExecutableHelpers.cmake
index c863d3f4..7295eec4 100644
--- a/cmake/QtExecutableHelpers.cmake
+++ b/cmake/QtExecutableHelpers.cmake
@@ -148,7 +148,7 @@ function(qt_internal_add_executable name)
 
     if(WASM)
         # WASM unconditionally sets DISABLE_EXCEPTION_CATCHING=1
-        qt_internal_set_exceptions_flags("${name}" NO_EXCEPTIONS)
+        qt_internal_set_exceptions_flags("${name}" FALSE)
     else()
         qt_internal_set_exceptions_flags("${name}" ${arg_EXCEPTIONS})
     endif()
@@ -422,7 +422,7 @@ function(qt_internal_add_configure_time_executable target)
     )
 
     set(should_build_at_configure_time TRUE)
-    if(EXISTS "${target_binary_path}")
+    if(EXISTS "${target_binary_path}" AND EXISTS "${timestamp_file}")
         set(last_ts 0)
         foreach(source IN LISTS sources)
             file(TIMESTAMP "${source}" ts "%s")
diff --git a/cmake/QtFeature.cmake b/cmake/QtFeature.cmake
index c778fa29..207abd58 100644
--- a/cmake/QtFeature.cmake
+++ b/cmake/QtFeature.cmake
@@ -177,15 +177,20 @@ function(qt_evaluate_config_expression resultVar)
     set(${resultVar} ${result} PARENT_SCOPE)
 endfunction()
 
+function(_qt_internal_get_feature_condition_keywords out_var)
+    set(keywords "EQUAL" "LESS" "LESS_EQUAL" "GREATER" "GREATER_EQUAL" "STREQUAL" "STRLESS"
+        "STRLESS_EQUAL" "STRGREATER" "STRGREATER_EQUAL" "VERSION_EQUAL" "VERSION_LESS"
+        "VERSION_LESS_EQUAL" "VERSION_GREATER" "VERSION_GREATER_EQUAL" "MATCHES"
+        "EXISTS" "COMMAND" "DEFINED" "NOT" "AND" "OR" "TARGET" "EXISTS" "IN_LIST" "(" ")")
+    set(${out_var} "${keywords}" PARENT_SCOPE)
+endfunction()
+
 function(_qt_internal_dump_expression_values expression_dump expression)
     set(dump "")
     set(skipNext FALSE)
     set(isTargetExpression FALSE)
 
-    set(keywords "EQUAL" "LESS" "LESS_EQUAL" "GREATER" "GREATER_EQUAL" "STREQUAL" "STRLESS"
-        "STRLESS_EQUAL" "STRGREATER" "STRGREATER_EQUAL" "VERSION_EQUAL" "VERSION_LESS"
-        "VERSION_LESS_EQUAL" "VERSION_GREATER" "VERSION_GREATER_EQUAL" "MATCHES"
-        "EXISTS" "COMMAND" "DEFINED" "NOT" "AND" "OR" "TARGET" "EXISTS" "IN_LIST" "(" ")")
+    _qt_internal_get_feature_condition_keywords(keywords)
 
     list(LENGTH expression length)
     math(EXPR length "${length}-1")
@@ -239,19 +244,44 @@ endfunction()
 # ${computed} is also stored when reconfiguring and the condition does not align with the user
 # provided value.
 #
-function(qt_feature_check_and_save_user_provided_value resultVar feature condition computed label)
+function(qt_feature_check_and_save_user_provided_value
+        resultVar feature condition condition_expression computed label)
     if (DEFINED "FEATURE_${feature}")
         # Revisit new user provided value
         set(user_value "${FEATURE_${feature}}")
-        string(TOUPPER "${user_value}" result)
+        string(TOUPPER "${user_value}" user_value_upper)
+        set(result "${user_value_upper}")
 
-        # If the build is marked as dirty and the user_value doesn't meet the new condition,
-        # reset it to the computed one.
+        # If ${feature} depends on another dirty feature, reset the ${feature} value to
+        # ${computed}.
         get_property(dirty_build GLOBAL PROPERTY _qt_dirty_build)
-        if(NOT condition AND result AND dirty_build)
-            set(result "${computed}")
-            message(WARNING "Reset FEATURE_${feature} value to ${result}, because it doesn't \
-meet its condition after reconfiguration.")
+        if(dirty_build)
+            _qt_internal_feature_compute_feature_dependencies(deps "${feature}")
+            if(deps)
+                get_property(dirty_features GLOBAL PROPERTY _qt_dirty_features)
+                foreach(dirty_feature ${dirty_features})
+                    if(dirty_feature IN_LIST deps AND NOT "${result}" STREQUAL "${computed}")
+                        set(result "${computed}")
+                        message(WARNING
+                            "Auto-resetting 'FEATURE_${feature}' from '${user_value_upper}' to "
+                            "'${computed}', "
+                            "because the dependent feature '${dirty_feature}' was marked dirty.")
+
+                        # Append ${feature} as a new dirty feature.
+                        set_property(GLOBAL APPEND PROPERTY _qt_dirty_features "${feature}")
+                        break()
+                    endif()
+                endforeach()
+            endif()
+
+            # If the build is marked as dirty and the feature doesn't meet its condition,
+            # reset its value to the computed one, which is likely OFF.
+            if(NOT condition AND result)
+                set(result "${computed}")
+                message(WARNING "Resetting 'FEATURE_${feature}' from '${user_value_upper}' to "
+                    "'${computed}' because it doesn't meet its condition after reconfiguration. "
+                    "Condition expression is: '${condition_expression}'")
+            endif()
         endif()
 
         set(bool_values OFF NO FALSE N ON YES TRUE Y)
@@ -299,6 +329,14 @@ condition:\n    ${conditionString}\nCondition values dump:\n    ${conditionDump}
     set(QT_KNOWN_FEATURES "${QT_KNOWN_FEATURES}" CACHE INTERNAL "" FORCE)
 endmacro()
 
+macro(_qt_internal_parse_feature_definition feature)
+    cmake_parse_arguments(arg
+        "PRIVATE;PUBLIC"
+        "LABEL;PURPOSE;SECTION;"
+        "AUTODETECT;CONDITION;ENABLE;DISABLE;EMIT_IF"
+        ${_QT_FEATURE_DEFINITION_${feature}})
+endmacro()
+
 
 # The build system stores 2 CMake cache variables for each feature, to allow detecting value changes
 # during subsequent reconfigurations.
@@ -334,9 +372,7 @@ function(qt_evaluate_feature feature)
         message(FATAL_ERROR "Attempting to evaluate feature ${feature} but its definition is missing. Either the feature does not exist or a dependency to the module that defines it is missing")
     endif()
 
-    cmake_parse_arguments(arg
-        "PRIVATE;PUBLIC"
-        "LABEL;PURPOSE;SECTION;" "AUTODETECT;CONDITION;ENABLE;DISABLE;EMIT_IF" ${_QT_FEATURE_DEFINITION_${feature}})
+    _qt_internal_parse_feature_definition("${feature}")
 
     if("${arg_ENABLE}" STREQUAL "")
         set(arg_ENABLE OFF)
@@ -374,16 +410,7 @@ function(qt_evaluate_feature feature)
         qt_evaluate_config_expression(emit_if ${arg_EMIT_IF})
     endif()
 
-    # If FEATURE_ is not defined trying to use INPUT_ variable to enable/disable feature.
-    if ((NOT DEFINED "FEATURE_${feature}") AND (DEFINED "INPUT_${feature}")
-        AND (NOT "${INPUT_${feature}}" STREQUAL "undefined")
-        AND (NOT "${INPUT_${feature}}" STREQUAL ""))
-        if(INPUT_${feature})
-            set(FEATURE_${feature} ON)
-        else()
-            set(FEATURE_${feature} OFF)
-        endif()
-    endif()
+    qt_internal_compute_feature_value_from_possible_input("${feature}")
 
     # Warn about a feature which is not emitted, but the user explicitly provided a value for it.
     if(NOT emit_if AND DEFINED FEATURE_${feature})
@@ -401,7 +428,8 @@ function(qt_evaluate_feature feature)
     # Only save the user provided value if the feature was emitted.
     if(emit_if)
         qt_feature_check_and_save_user_provided_value(
-            saved_user_value "${feature}" "${condition}" "${computed}" "${arg_LABEL}")
+            saved_user_value
+            "${feature}" "${condition}" "${arg_CONDITION}" "${computed}" "${arg_LABEL}")
     else()
         # Make sure the feature internal value is OFF if not emitted.
         set(saved_user_value OFF)
@@ -414,6 +442,60 @@ function(qt_evaluate_feature feature)
     set(QT_FEATURE_LABEL_${feature} "${arg_LABEL}" CACHE INTERNAL "")
 endfunction()
 
+# Collect feature names that ${feature} depends on, by inspecting the given expression.
+function(_qt_internal_feature_extract_feature_dependencies_from_expression out_var expression)
+    list(LENGTH expression length)
+    math(EXPR length "${length}-1")
+
+    if(length LESS 0)
+        set(${out_var} "" PARENT_SCOPE)
+        return()
+    endif()
+
+    set(deps "")
+
+    foreach(memberIdx RANGE ${length})
+        list(GET expression ${memberIdx} member)
+        if(member MATCHES "^QT_FEATURE_(.+)")
+            list(APPEND deps "${CMAKE_MATCH_1}")
+        endif()
+    endforeach()
+    set(${out_var} "${deps}" PARENT_SCOPE)
+endfunction()
+
+# Collect feature names that ${feature} depends on, based on feature names that appear
+# in the ${feature}'s condition expressions.
+function(_qt_internal_feature_compute_feature_dependencies out_var feature)
+    # Only compute the deps once per feature.
+    get_property(deps_computed GLOBAL PROPERTY _qt_feature_deps_computed_${feature})
+    if(deps_computed)
+        get_property(deps GLOBAL PROPERTY _qt_feature_deps_${feature})
+        set(${out_var} "${deps}" PARENT_SCOPE)
+        return()
+    endif()
+
+    _qt_internal_parse_feature_definition("${feature}")
+
+    set(options_to_check AUTODETECT CONDITION ENABLE DISABLE EMIT_IF)
+    set(deps "")
+
+    # Go through each option that takes condition expressions and collect the feature names.
+    foreach(option ${options_to_check})
+        set(option_value "${arg_${option}}")
+        if(option_value)
+            _qt_internal_feature_extract_feature_dependencies_from_expression(
+                option_deps "${option_value}")
+            if(option_deps)
+                list(APPEND deps ${option_deps})
+            endif()
+        endif()
+    endforeach()
+
+    set_property(GLOBAL PROPERTY _qt_feature_deps_computed_${feature} TRUE)
+    set_property(GLOBAL PROPERTY _qt_feature_deps_${feature} "${deps}")
+    set(${out_var} "${deps}" PARENT_SCOPE)
+endfunction()
+
 function(qt_feature_config feature config_var_name)
     qt_feature_normalize_name("${feature}" feature)
     cmake_parse_arguments(PARSE_ARGV 2 arg
@@ -786,6 +868,49 @@ function(qt_feature_copy_global_config_features_to_core target)
     endif()
 endfunction()
 
+function(qt_internal_detect_dirty_features)
+    # We need to clean up QT_FEATURE_*, but only once per configuration cycle
+    get_property(qt_feature_clean GLOBAL PROPERTY _qt_feature_clean)
+    if(NOT qt_feature_clean AND NOT QT_NO_FEATURE_AUTO_RESET)
+        message(STATUS "Checking for feature set changes")
+        set_property(GLOBAL PROPERTY _qt_feature_clean TRUE)
+        foreach(feature ${QT_KNOWN_FEATURES})
+            qt_internal_compute_feature_value_from_possible_input("${feature}")
+
+            if(DEFINED "FEATURE_${feature}" AND
+                NOT "${QT_FEATURE_${feature}}" STREQUAL "${FEATURE_${feature}}")
+                message("    '${feature}' was changed from ${QT_FEATURE_${feature}} "
+                    "to ${FEATURE_${feature}}")
+                set(dirty_build TRUE)
+                set_property(GLOBAL APPEND PROPERTY _qt_dirty_features "${feature}")
+            endif()
+            unset("QT_FEATURE_${feature}" CACHE)
+        endforeach()
+
+        set(QT_KNOWN_FEATURES "" CACHE INTERNAL "" FORCE)
+
+        if(dirty_build)
+            set_property(GLOBAL PROPERTY _qt_dirty_build TRUE)
+            message(WARNING
+                "Due to detected feature set changes, dependent features "
+                "will be re-computed automatically. This might cause a lot of files to be rebuilt. "
+                "To disable this behavior, configure with -DQT_NO_FEATURE_AUTO_RESET=ON")
+        endif()
+    endif()
+endfunction()
+
+function(qt_internal_clean_feature_inputs)
+    foreach(feature IN LISTS QT_KNOWN_FEATURES)
+        # Unset the INPUT_foo cache variables after they were used in feature evaluation, to
+        # ensure stale values don't influence features upon reconfiguration when
+        # QT_INTERNAL_CALLED_FROM_CONFIGURE is TRUE and the INPUT_foo variable is not passed.
+        # e.g. first configure -no-gui, then manually toggle FEATURE_gui to ON in
+        # CMakeCache.txt, then reconfigure (with the configure script) without -no-gui.
+        # Without this unset(), we'd have switched FEATURE_gui to OFF again.
+        unset(INPUT_${feature} CACHE)
+    endforeach()
+endfunction()
+
 function(qt_config_compile_test name)
     if(DEFINED "TEST_${name}")
         return()
@@ -924,6 +1049,7 @@ function(qt_config_compile_test name)
                 # fail instead of cmake abort later via CMAKE_REQUIRED_LIBRARIES.
                 string(FIND "${library}" "::" cmake_target_namespace_separator)
                 if(NOT cmake_target_namespace_separator EQUAL -1)
+                    message(STATUS "Performing Test ${arg_LABEL} - Failed because ${library} not found")
                     set(HAVE_${name} FALSE)
                     break()
                 endif()
diff --git a/cmake/QtFindPackageHelpers.cmake b/cmake/QtFindPackageHelpers.cmake
index 15651b31..92fd0719 100644
--- a/cmake/QtFindPackageHelpers.cmake
+++ b/cmake/QtFindPackageHelpers.cmake
@@ -16,6 +16,15 @@ function(qt_find_package_promote_targets_to_global_scope target)
                             "qt_find_package_targets_dict" "promote_global")
 endfunction()
 
+# As an optimization when using -developer-build, qt_find_package records which
+# packages were found during the initial configuration. Then on subsequent
+# reconfigurations it skips looking for packages that were not found on the
+# initial run.
+# For the build system to pick up a newly added qt_find_package call, you need to:
+# - Start with a clean build dir
+# - Or remove the <builddir>/CMakeCache.txt file and configure from scratch
+# - Or remove the QT_INTERNAL_PREVIOUSLY_FOUND_PACKAGES cache variable (by
+#   editing CMakeCache.txt) and reconfigure.
 macro(qt_find_package)
     # Get the target names we expect to be provided by the package.
     set(find_package_options CONFIG NO_MODULE MODULE REQUIRED)
diff --git a/cmake/QtFrameworkHelpers.cmake b/cmake/QtFrameworkHelpers.cmake
index 9a48bd9c..6d67bc4a 100644
--- a/cmake/QtFrameworkHelpers.cmake
+++ b/cmake/QtFrameworkHelpers.cmake
@@ -4,6 +4,7 @@
 macro(qt_find_apple_system_frameworks)
     if(APPLE)
         qt_internal_find_apple_system_framework(FWAppKit AppKit)
+        qt_internal_find_apple_system_framework(FWCFNetwork CFNetwork)
         qt_internal_find_apple_system_framework(FWAssetsLibrary AssetsLibrary)
         qt_internal_find_apple_system_framework(FWPhotos Photos)
         qt_internal_find_apple_system_framework(FWAudioToolbox AudioToolbox)
@@ -58,7 +59,7 @@ function(qt_internal_find_apple_system_framework out_var framework_name)
     endif()
 endfunction()
 
-# Copy header files to QtXYZ.framework/Versions/A/Headers/
+# Copy header files to the framework's Headers directory
 # Use this function for header files that
 #   - are not added as source files to the target
 #   - are not marked as PUBLIC_HEADER
@@ -71,7 +72,7 @@ function(qt_copy_framework_headers target)
 
     set(options)
     set(oneValueArgs)
-    set(multiValueArgs PUBLIC PRIVATE QPA)
+    set(multiValueArgs PUBLIC PRIVATE QPA RHI)
     cmake_parse_arguments(arg "${options}" "${oneValueArgs}" "${multiValueArgs}" ${ARGN})
 
     qt_internal_get_framework_info(fw ${target})
@@ -79,10 +80,11 @@ function(qt_copy_framework_headers target)
     set(output_dir_PUBLIC "${output_dir}/${fw_versioned_header_dir}")
     set(output_dir_PRIVATE "${output_dir}/${fw_private_module_header_dir}/private")
     set(output_dir_QPA "${output_dir}/${fw_private_module_header_dir}/qpa")
+    set(output_dir_RHI "${output_dir}/${fw_private_module_header_dir}/rhi")
 
 
     set(out_files)
-    foreach(type IN ITEMS PUBLIC PRIVATE QPA)
+    foreach(type IN ITEMS PUBLIC PRIVATE QPA RHI)
         set(fw_output_header_dir "${output_dir_${type}}")
         foreach(hdr IN LISTS arg_${type})
             get_filename_component(in_file_path ${hdr} ABSOLUTE)
@@ -164,8 +166,13 @@ function(qt_internal_get_framework_info out_var target)
     set(${out_var}_name "${module}")
     set(${out_var}_dir "${${out_var}_name}.framework")
     set(${out_var}_header_dir "${${out_var}_dir}/Headers")
-    set(${out_var}_versioned_header_dir "${${out_var}_dir}/Versions/${${out_var}_version}/Headers")
-    set(${out_var}_private_header_dir "${${out_var}_header_dir}/${${out_var}_bundle_version}")
+    if(UIKIT)
+        # iOS frameworks do not version their headers
+        set(${out_var}_versioned_header_dir "${${out_var}_header_dir}")
+    else()
+        set(${out_var}_versioned_header_dir "${${out_var}_dir}/Versions/${${out_var}_version}/Headers")
+    endif()
+    set(${out_var}_private_header_dir "${${out_var}_versioned_header_dir}/${${out_var}_bundle_version}")
     set(${out_var}_private_module_header_dir "${${out_var}_private_header_dir}/${module}")
 
     set(${out_var}_name "${${out_var}_name}" PARENT_SCOPE)
diff --git a/cmake/QtHeadersClean.cmake b/cmake/QtHeadersClean.cmake
index d04a80d9..53cd0035 100644
--- a/cmake/QtHeadersClean.cmake
+++ b/cmake/QtHeadersClean.cmake
@@ -104,6 +104,7 @@ function(qt_internal_add_headersclean_target module_target module_headers)
 
         set(hcleanFLAGS -Wall -Wextra -Werror -Woverloaded-virtual -Wshadow -Wundef -Wfloat-equal
             -Wnon-virtual-dtor -Wpointer-arith -Wformat-security -Wno-long-long -Wno-variadic-macros
+            -fno-operator-names
             -pedantic-errors)
 
         if(QT_FEATURE_reduce_relocations AND UNIX)
@@ -181,9 +182,7 @@ function(qt_internal_add_headersclean_target module_target module_headers)
         )
         set(input_header_path_type ABSOLUTE)
     elseif ("${CMAKE_CXX_COMPILER_ID}" STREQUAL "MSVC")
-        # -Za would enable strict standards behavior, but we can't add it because
-        # <windows.h> and <GL.h> violate the standards.
-        set(hcleanFLAGS -std:c++latest -Zc:__cplusplus -WX -W3)
+        set(hcleanFLAGS -std:c++latest -Zc:__cplusplus -WX -W3 -EHsc)
 
         # Because we now add `-DNOMINMAX` to `PlatformCommonInternal`.
         set(hcleanUDEFS -UNOMINMAX)
diff --git a/cmake/QtInitProject.cmake b/cmake/QtInitProject.cmake
new file mode 100644
index 00000000..a42f59f5
--- /dev/null
+++ b/cmake/QtInitProject.cmake
@@ -0,0 +1,214 @@
+# Copyright (C) 2023 The Qt Company Ltd.
+# SPDX-License-Identifier: BSD-3-Clause
+cmake_minimum_required(VERSION 3.16)
+
+if(NOT PROJECT_DIR)
+    set(PROJECT_DIR "${CMAKE_SOURCE_DIR}")
+endif()
+
+get_filename_component(project_name "${PROJECT_DIR}" NAME)
+
+get_filename_component(project_abs_dir "${PROJECT_DIR}" ABSOLUTE)
+if(NOT IS_DIRECTORY "${project_abs_dir}")
+    message(FATAL_ERROR "Unable to scan ${project_abs_dir}. The directory doesn't exist.")
+endif()
+
+set(known_extensions "")
+set(types "")
+
+# The function allows extending the capabilities of this script and establishes simple relation
+# chains between the file types.
+# Option Arguments:
+#     EXPERIMENTAL
+#         Marks that the support of the following files is experimental and the required Qt modules
+#         are in Technical preview state.
+#     DEPRECATED
+#         Marks that the support of the following files will be discontinued soon and the required
+#         Qt modules are deprecated.
+# One-value Arguments:
+#     TEMPLATE
+#         The CMake code template. Use the '@files@' string for the files substitution.
+# Multi-value Arguments:
+#     EXTENSIONS
+#         List of the file extensions treated as this source 'type'.
+#     MODULES
+#         List of Qt modules required for these file types.
+#     DEPENDS
+#         The prerequisite source 'type' needed by this source 'type'
+macro(handle_type type)
+    cmake_parse_arguments(arg
+        "EXPERIMENTAL;DEPRECATED"
+        "TEMPLATE"
+        "EXTENSIONS;MODULES;DEPENDS"
+        ${ARGN}
+    )
+
+    if(NOT arg_EXTENSIONS)
+        message(FATAL_ERROR "Unexpected call handle_type of with no EXTENSIONS specified."
+            " This is the Qt issue, please report a bug at https://bugreports.qt.io.")
+    endif()
+    set(unique_extensions_subset "${known_extensions}")
+    list(REMOVE_ITEM unique_extensions_subset ${arg_EXTENSIONS})
+    if(NOT "${known_extensions}" STREQUAL "${unique_extensions_subset}")
+        message(FATAL_ERROR "${type} contains duplicated extensions, this is not supported."
+            " This is the Qt issue, please report a bug at https://bugreports.qt.io.")
+    endif()
+    set(${type}_file_extensions "${arg_EXTENSIONS}")
+
+    if(NOT arg_TEMPLATE)
+        message(FATAL_ERROR "Unexpected call handle_type of with no TEMPLATE specified."
+            " This is the Qt issue, please report a bug at https://bugreports.qt.io.")
+    endif()
+    set(${type}_template "${arg_TEMPLATE}")
+
+    if(arg_MODULES)
+        set(${type}_required_modules "${arg_MODULES}")
+    endif()
+
+    list(APPEND types ${type})
+
+    if(arg_EXPERIMENTAL)
+        set(${type}_is_experimental TRUE)
+    else()
+        set(${type}_is_experimental FALSE)
+    endif()
+
+    if(arg_DEPRECATED)
+        set(${type}_is_deprecated TRUE)
+    else()
+        set(${type}_is_deprecated FALSE)
+    endif()
+
+    if(arg_DEPENDS)
+        set(${type}_dependencies ${arg_DEPENDS})
+    endif()
+endmacro()
+
+handle_type(cpp EXTENSIONS .c .cc .cpp .cxx .h .hh .hxx .hpp MODULES Core TEMPLATE
+"\n\nqt_add_executable(${project_name}
+    @files@
+)"
+)
+
+handle_type(qml EXTENSIONS .qml .js .mjs MODULES Gui Qml Quick TEMPLATE
+"\n\nqt_add_qml_module(${project_name}
+    URI ${project_name}
+    OUTPUT_DIRECTORY qml
+    VERSION 1.0
+    RESOURCE_PREFIX /qt/qml
+    QML_FILES
+        @files@
+)"
+)
+
+handle_type(ui EXTENSIONS .ui MODULES Gui Widgets DEPENDS cpp TEMPLATE
+"\n\ntarget_sources(${project_name}
+    PRIVATE
+        @files@
+)"
+)
+
+handle_type(qrc EXTENSIONS .qrc DEPENDS cpp TEMPLATE
+"\n\nqt_add_resources(${project_name}_resources @files@)
+target_sources(${project_name}
+    PRIVATE
+        \\\${${project_name}_resources}
+)"
+)
+
+handle_type(protobuf EXPERIMENTAL EXTENSIONS .proto MODULES Protobuf Grpc TEMPLATE
+"\n\nqt_add_protobuf(${project_name}
+    GENERATE_PACKAGE_SUBFOLDERS
+    PROTO_FILES
+        @files@
+)"
+)
+
+set(extra_packages "")
+file(GLOB_RECURSE files RELATIVE "${project_abs_dir}" "${project_abs_dir}/*")
+foreach(f IN LISTS files)
+    get_filename_component(file_extension "${f}" LAST_EXT)
+    string(TOLOWER "${file_extension}" file_extension)
+
+    foreach(type IN LISTS types)
+        if(file_extension IN_LIST ${type}_file_extensions)
+            list(APPEND ${type}_sources "${f}")
+            list(APPEND packages ${${type}_required_modules})
+            if(${type}_is_experimental)
+                message("We found files with the following extensions in your directory:"
+                    " ${${type}_file_extensions}\n"
+                    "Note that the modules ${${type}_required_modules} are"
+                    " in the technical preview state.")
+            endif()
+            if(${type}_is_deprecated)
+                message("We found files with the following extensions in your directory:"
+                    " ${${type}_file_extensions}\n"
+                    "Note that the modules ${${type}_required_modules} are deprecated.")
+            endif()
+            break()
+        endif()
+    endforeach()
+endforeach()
+
+if(packages)
+    list(REMOVE_DUPLICATES packages)
+    list(JOIN packages " " packages_string)
+    list(JOIN packages "\n        Qt::" deps_string)
+    set(deps_string "Qt::${deps_string}")
+endif()
+
+set(content
+"cmake_minimum_required(VERSION 3.16)
+project(${project_name} LANGUAGES CXX)
+
+find_package(Qt6 REQUIRED COMPONENTS ${packages_string})
+qt_standard_project_setup()"
+)
+
+set(has_useful_sources FALSE)
+foreach(type IN LISTS types)
+    if(${type}_sources)
+        set(skip FALSE)
+        foreach(dep IN LISTS ${type}_dependencies)
+            if(NOT ${dep}_sources)
+                set(skip TRUE)
+                message("Sources of type ${${type}_file_extensions} cannot live in the project"
+                " without ${${dep}_file_extensions} files. Skipping.")
+                break()
+            endif()
+        endforeach()
+        if(skip)
+            continue()
+        endif()
+
+        set(has_useful_sources TRUE)
+        string(REGEX MATCH "( +)@files@" unused "${${type}_template}")
+        list(JOIN ${type}_sources "\n${CMAKE_MATCH_1}" ${type}_sources)
+        string(REPLACE "@files@" "${${type}_sources}" ${type}_content
+            "${${type}_template}")
+        string(APPEND content "${${type}_content}")
+    endif()
+endforeach()
+
+string(APPEND content "\n\ntarget_link_libraries(${project_name}
+    PRIVATE
+        ${deps_string}
+)\n"
+)
+
+if(EXISTS "${project_abs_dir}/CMakeLists.txt")
+    message(FATAL_ERROR "Project is already initialized in current directory."
+        " Please remove CMakeLists.txt if you want to regenerate the project.")
+endif()
+
+if(NOT has_useful_sources)
+    message(FATAL_ERROR "Could not find any files to generate the project.")
+endif()
+file(WRITE "${project_abs_dir}/CMakeLists.txt" "${content}")
+
+message("The project file is successfully generated. To build the project run:"
+    "\nmkdir build"
+    "\ncd build"
+    "\nqt-cmake ${project_abs_dir}"
+    "\ncmake --build ${project_abs_dir}"
+)
diff --git a/cmake/QtInternalTargets.cmake b/cmake/QtInternalTargets.cmake
index b5831659..faa724e6 100644
--- a/cmake/QtInternalTargets.cmake
+++ b/cmake/QtInternalTargets.cmake
@@ -156,6 +156,8 @@ qt_internal_add_target_aliases(PlatformToolInternal)
 target_link_libraries(PlatformToolInternal INTERFACE PlatformAppInternal)
 
 qt_internal_add_global_definition(QT_NO_JAVA_STYLE_ITERATORS)
+qt_internal_add_global_definition(QT_NO_AS_CONST)
+qt_internal_add_global_definition(QT_NO_QEXCHANGE)
 qt_internal_add_global_definition(QT_NO_NARROWING_CONVERSIONS_IN_CONNECT)
 qt_internal_add_global_definition(QT_EXPLICIT_QFILE_CONSTRUCTION_FROM_PATH)
 
diff --git a/cmake/QtLalrHelpers.cmake b/cmake/QtLalrHelpers.cmake
index 8f7c6d78..a63d8e95 100644
--- a/cmake/QtLalrHelpers.cmake
+++ b/cmake/QtLalrHelpers.cmake
@@ -35,6 +35,15 @@ function(qt_process_qlalr consuming_target input_file_list flags)
         return()
     endif()
 
+    qt_internal_is_skipped_test(skipped ${consuming_target})
+    if(skipped)
+        return()
+    endif()
+    qt_internal_is_in_test_batch(in_batch ${consuming_target})
+    if(in_batch)
+        _qt_internal_test_batch_target_name(consuming_target)
+    endif()
+
     foreach(input_file ${input_file_list})
         file(STRINGS ${input_file} input_file_lines)
         qt_qlalr_find_option_in_list("${input_file_lines}" "^%parser(.+)" "parser")
diff --git a/cmake/QtModuleConfig.cmake.in b/cmake/QtModuleConfig.cmake.in
index 55402f50..cdb79f4b 100644
--- a/cmake/QtModuleConfig.cmake.in
+++ b/cmake/QtModuleConfig.cmake.in
@@ -27,6 +27,8 @@ endif()
 if (NOT QT_NO_CREATE_TARGETS AND @INSTALL_CMAKE_NAMESPACE@@target@_FOUND)
     include("${CMAKE_CURRENT_LIST_DIR}/@INSTALL_CMAKE_NAMESPACE@@target@Targets.cmake")
     include("${CMAKE_CURRENT_LIST_DIR}/@INSTALL_CMAKE_NAMESPACE@@target@AdditionalTargetInfo.cmake")
+    include("${CMAKE_CURRENT_LIST_DIR}/@INSTALL_CMAKE_NAMESPACE@@target@ExtraProperties.cmake"
+        OPTIONAL)
     if(NOT QT_NO_CREATE_VERSIONLESS_TARGETS)
         include("${CMAKE_CURRENT_LIST_DIR}/@INSTALL_CMAKE_NAMESPACE@@target@VersionlessTargets.cmake")
     endif()
diff --git a/cmake/QtModuleHelpers.cmake b/cmake/QtModuleHelpers.cmake
index 0b42991e..21630860 100644
--- a/cmake/QtModuleHelpers.cmake
+++ b/cmake/QtModuleHelpers.cmake
@@ -30,6 +30,7 @@ macro(qt_internal_get_internal_add_module_keywords option_args single_args multi
         EXTERNAL_HEADERS_DIR
         PRIVATE_HEADER_FILTERS
         QPA_HEADER_FILTERS
+        RHI_HEADER_FILTERS
         HEADER_SYNC_SOURCE_DIRECTORY
         ${__default_target_info_args}
     )
@@ -114,6 +115,10 @@ endfunction()
 #     The regular expressions that filter QPA header files out of target sources.
 #     The value must use the following format 'regex1|regex2|regex3'.
 #
+#   RHI_HEADER_FILTERS
+#     The regular expressions that filter RHI header files out of target sources.
+#     The value must use the following format 'regex1|regex2|regex3'.
+#
 #   HEADER_SYNC_SOURCE_DIRECTORY
 #     The source directory for header sync procedure. Header files outside this directory will be
 #     ignored by syncqt. The specifying this directory allows to skip the parsing of the whole
@@ -326,14 +331,24 @@ function(qt_internal_add_module target)
                      EXPORT_PROPERTIES "${export_properties}")
     endif()
 
+    # FIXME: This workaround is needed because the deployment logic
+    # for iOS and WASM just copies/embeds the directly linked library,
+    # which will just be a versioned symlink to the actual library.
+    if((UIKIT OR WASM) AND BUILD_SHARED_LIBS)
+        set(version_args "")
+    else()
+        set(version_args
+            VERSION ${PROJECT_VERSION}
+            SOVERSION ${PROJECT_VERSION_MAJOR})
+    endif()
+
     if(NOT arg_HEADER_MODULE)
         set_target_properties(${target} PROPERTIES
             LIBRARY_OUTPUT_DIRECTORY "${QT_BUILD_DIR}/${INSTALL_LIBDIR}"
             RUNTIME_OUTPUT_DIRECTORY "${QT_BUILD_DIR}/${INSTALL_BINDIR}"
             ARCHIVE_OUTPUT_DIRECTORY "${QT_BUILD_DIR}/${INSTALL_LIBDIR}"
-            VERSION ${PROJECT_VERSION}
-            SOVERSION ${PROJECT_VERSION_MAJOR}
-            )
+            ${version_args}
+        )
         qt_set_target_info_properties(${target} ${ARGN})
         qt_handle_multi_config_output_dirs("${target}")
 
@@ -436,6 +451,13 @@ function(qt_internal_add_module target)
         set_target_properties(${target}
             PROPERTIES _qt_module_qpa_headers_filter_regex "${qpa_filter_regex}")
 
+        set(rhi_filter_regex "")
+        if(arg_RHI_HEADER_FILTERS)
+            set(rhi_filter_regex "${arg_RHI_HEADER_FILTERS}")
+        endif()
+        set_target_properties(${target}
+            PROPERTIES _qt_module_rhi_headers_filter_regex "${rhi_filter_regex}")
+
         set(private_filter_regex ".+_p(ch)?\\.h")
         if(arg_PRIVATE_HEADER_FILTERS)
             set(private_filter_regex "${private_filter_regex}|${arg_PRIVATE_HEADER_FILTERS}")
@@ -793,6 +815,11 @@ set(QT_ALLOW_MISSING_TOOLS_PACKAGES TRUE)")
         EXPORT_NAME_PREFIX ${INSTALL_CMAKE_NAMESPACE}${target}
         CONFIG_INSTALL_DIR "${config_install_dir}")
 
+    qt_internal_export_genex_properties(TARGETS ${target}
+        EXPORT_NAME_PREFIX ${INSTALL_CMAKE_NAMESPACE}${target}
+        CONFIG_INSTALL_DIR "${config_install_dir}"
+    )
+
     ### fixme: cmake is missing a built-in variable for this. We want to apply it only to modules and plugins
     # that belong to Qt.
     if(NOT arg_HEADER_MODULE)
@@ -878,6 +905,7 @@ function(qt_finalize_module target)
         PUBLIC ${module_headers_public} "${module_depends_header}"
         PRIVATE ${module_headers_private}
         QPA ${module_headers_qpa}
+        RHI ${module_headers_rhi}
     )
 
     qt_finalize_framework_headers_copy(${target})
@@ -910,6 +938,7 @@ endfunction()
 #  * foo_versioned_inner_include_dir with the value "QtCore/6.2.0/QtCore"
 #  * foo_private_include_dir with the value "QtCore/6.2.0/QtCore/private"
 #  * foo_qpa_include_dir with the value "QtCore/6.2.0/QtCore/qpa"
+#  * foo_rhi_include_dir with the value "QtCore/6.2.0/QtCore/rhi"
 #  * foo_interface_name the interface name of the module stored in _qt_module_interface_name
 #    property, e.g. Core.
 #
@@ -932,6 +961,9 @@ endfunction()
 #  * foo_<build|install>_qpa_include_dir with
 #    qtbase_build_dir/include/QtCore/6.2.0/QtCore/qpa for build interface and
 #    include/QtCore/6.2.0/QtCore/qpa for install interface.
+#  * foo_<build|install>_rhi_include_dir with
+#    qtbase_build_dir/include/QtCore/6.2.0/QtCore/rhi for build interface and
+#    include/QtCore/6.2.0/QtCore/rhi for install interface.
 # The following values are set by the function and might be useful in caller's scope:
 #  * repo_install_interface_include_dir contains path to the top-level repository include directory,
 #    e.g. qtbase_build_dir/include
@@ -966,6 +998,8 @@ the different base name for the module info variables.")
         "${${result}_versioned_inner_include_dir}/private")
     set("${result}_qpa_include_dir"
         "${${result}_versioned_inner_include_dir}/qpa")
+    set("${result}_rhi_include_dir"
+        "${${result}_versioned_inner_include_dir}/rhi")
 
     # Module build interface directories
     set(repo_build_interface_include_dir "${QT_BUILD_DIR}/include")
@@ -979,6 +1013,8 @@ the different base name for the module info variables.")
         "${repo_build_interface_include_dir}/${${result}_private_include_dir}")
     set("${result}_build_interface_qpa_include_dir"
         "${repo_build_interface_include_dir}/${${result}_qpa_include_dir}")
+    set("${result}_build_interface_rhi_include_dir"
+        "${repo_build_interface_include_dir}/${${result}_rhi_include_dir}")
 
     # Module install interface directories
     set(repo_install_interface_include_dir "${INSTALL_INCLUDEDIR}")
@@ -992,6 +1028,8 @@ the different base name for the module info variables.")
         "${repo_install_interface_include_dir}/${${result}_private_include_dir}")
     set("${result}_install_interface_qpa_include_dir"
         "${repo_install_interface_include_dir}/${${result}_qpa_include_dir}")
+    set("${result}_install_interface_rhi_include_dir"
+        "${repo_install_interface_include_dir}/${${result}_rhi_include_dir}")
 
     set("${result}" "${module}" PARENT_SCOPE)
     set("${result}_versioned" "${module_versioned}" PARENT_SCOPE)
@@ -1005,6 +1043,7 @@ the different base name for the module info variables.")
         "${${result}_versioned_inner_include_dir}" PARENT_SCOPE)
     set("${result}_private_include_dir" "${${result}_private_include_dir}" PARENT_SCOPE)
     set("${result}_qpa_include_dir" "${${result}_qpa_include_dir}" PARENT_SCOPE)
+    set("${result}_rhi_include_dir" "${${result}_rhi_include_dir}" PARENT_SCOPE)
     set("${result}_interface_name" "${module_interface_name}" PARENT_SCOPE)
 
     # Setting module build interface directories in parent scope
@@ -1019,6 +1058,8 @@ the different base name for the module info variables.")
         "${${result}_build_interface_private_include_dir}" PARENT_SCOPE)
     set("${result}_build_interface_qpa_include_dir"
         "${${result}_build_interface_qpa_include_dir}" PARENT_SCOPE)
+    set("${result}_build_interface_rhi_include_dir"
+        "${${result}_build_interface_rhi_include_dir}" PARENT_SCOPE)
 
     # Setting module install interface directories in parent scope
     set(repo_install_interface_include_dir "${repo_install_interface_include_dir}" PARENT_SCOPE)
@@ -1032,6 +1073,8 @@ the different base name for the module info variables.")
         "${${result}_install_interface_private_include_dir}" PARENT_SCOPE)
     set("${result}_install_interface_qpa_include_dir"
         "${${result}_install_interface_qpa_include_dir}" PARENT_SCOPE)
+    set("${result}_install_interface_rhi_include_dir"
+        "${${result}_install_interface_rhi_include_dir}" PARENT_SCOPE)
 endfunction()
 
 function(qt_internal_list_to_json_array out_var list_var)
@@ -1075,6 +1118,10 @@ function(qt_describe_module target)
     endif()
 
     set(extra_build_information "")
+    if(NOT QT_NAMESPACE STREQUAL "")
+        string(APPEND extra_build_information "
+        \"namespace\": \"${QT_NAMESPACE}\",")
+    endif()
     if(ANDROID)
         string(APPEND extra_build_information "
         \"android\": {
@@ -1135,7 +1182,7 @@ endfunction()
 function(qt_internal_install_module_headers target)
     set(options)
     set(one_value_args)
-    set(multi_value_args PUBLIC PRIVATE QPA)
+    set(multi_value_args PUBLIC PRIVATE QPA RHI)
     cmake_parse_arguments(arg "${options}" "${one_value_args}" "${multi_value_args}" ${ARGN})
 
     qt_internal_module_info(module ${target})
@@ -1160,6 +1207,7 @@ function(qt_internal_install_module_headers target)
             PUBLIC ${arg_PUBLIC}
             PRIVATE ${arg_PRIVATE}
             QPA ${arg_QPA}
+            RHI ${arg_RHI}
         )
     else()
         if(arg_PUBLIC)
@@ -1173,6 +1221,9 @@ function(qt_internal_install_module_headers target)
         if(arg_QPA)
             qt_install(FILES ${arg_QPA} DESTINATION "${module_install_interface_qpa_include_dir}")
         endif()
+        if(arg_RHI)
+            qt_install(FILES ${arg_RHI} DESTINATION "${module_install_interface_rhi_include_dir}")
+        endif()
     endif()
 endfunction()
 
@@ -1180,6 +1231,7 @@ function(qt_internal_collect_module_headers out_var target)
     set(${out_var}_public "")
     set(${out_var}_private "")
     set(${out_var}_qpa "")
+    set(${out_var}_rhi "")
     set(${out_var}_all "")
 
     qt_internal_get_target_sources(sources ${target})
@@ -1200,6 +1252,7 @@ function(qt_internal_collect_module_headers out_var target)
     get_target_property(public_filter ${target} _qt_module_public_headers_filter_regex)
     get_target_property(private_filter ${target} _qt_module_private_headers_filter_regex)
     get_target_property(qpa_filter ${target} _qt_module_qpa_headers_filter_regex)
+    get_target_property(rhi_filter ${target} _qt_module_rhi_headers_filter_regex)
 
     set(condition_independent_headers_warning "")
     foreach(file_path IN LISTS sources)
@@ -1251,6 +1304,8 @@ function(qt_internal_collect_module_headers out_var target)
         list(APPEND ${out_var}_all "${file_path}")
         if(qpa_filter AND file_name MATCHES "${qpa_filter}")
             list(APPEND ${out_var}_qpa "${file_path}")
+        elseif(rhi_filter AND file_name MATCHES "${rhi_filter}")
+            list(APPEND ${out_var}_rhi "${file_path}")
         elseif(private_filter AND file_name MATCHES "${private_filter}")
             list(APPEND ${out_var}_private "${file_path}")
         elseif((NOT public_filter OR file_name MATCHES "${public_filter}")
@@ -1274,7 +1329,7 @@ function(qt_internal_collect_module_headers out_var target)
     endif()
 
 
-    set(header_types public private qpa)
+    set(header_types public private qpa rhi)
     set(has_header_types_properties "")
     foreach(header_type IN LISTS header_types)
         get_target_property(current_propety_value ${target} _qt_module_has_${header_type}_headers)
@@ -1296,5 +1351,6 @@ function(qt_internal_collect_module_headers out_var target)
             _qt_module_has_public_headers
             _qt_module_has_private_headers
             _qt_module_has_qpa_headers
+            _qt_module_has_rhi_headers
     )
 endfunction()
diff --git a/cmake/QtProcessConfigureArgs.cmake b/cmake/QtProcessConfigureArgs.cmake
index 85f5b714..f8f6d309 100644
--- a/cmake/QtProcessConfigureArgs.cmake
+++ b/cmake/QtProcessConfigureArgs.cmake
@@ -148,6 +148,41 @@ while(NOT "${configure_args}" STREQUAL "")
     endif()
 endwhile()
 
+# Read the specified manually generator value from CMake command line.
+# The '-cmake-generator' argument has higher priority than CMake command line.
+if(NOT generator)
+    set(is_next_arg_generator_name FALSE)
+    foreach(arg IN LISTS cmake_args)
+        if(is_next_arg_generator_name)
+            set(is_next_arg_generator_name FALSE)
+            if(NOT arg MATCHES "^-.*")
+                set(generator "${arg}")
+                set(auto_detect_generator FALSE)
+            endif()
+        elseif(arg MATCHES "^-G(.*)")
+            set(generator "${CMAKE_MATCH_1}")
+            if(generator)
+                set(auto_detect_generator FALSE)
+            else()
+                set(is_next_arg_generator_name TRUE)
+            endif()
+        endif()
+    endforeach()
+endif()
+
+# Attempt to detect the generator type, either single or multi-config
+if("${generator}" STREQUAL "Xcode"
+    OR "${generator}" STREQUAL "Ninja Multi-Config"
+    OR "${generator}" MATCHES "^Visual Studio")
+    set(multi_config ON)
+else()
+    set(multi_config OFF)
+endif()
+
+# Tell the build system we are configuring via the configure script so we can act on that.
+# The cache variable is unset at the end of configuration.
+push("-DQT_INTERNAL_CALLED_FROM_CONFIGURE:BOOL=TRUE")
+
 if(FRESH_REQUESTED)
     push("-DQT_INTERNAL_FRESH_REQUESTED:BOOL=TRUE")
     if(CMAKE_VERSION VERSION_GREATER_EQUAL "3.24")
@@ -826,6 +861,7 @@ translate_boolean_input(precompile_header BUILD_WITH_PCH)
 translate_boolean_input(unity_build QT_UNITY_BUILD)
 translate_string_input(unity_build_batch_size QT_UNITY_BUILD_BATCH_SIZE)
 translate_boolean_input(ccache QT_USE_CCACHE)
+translate_boolean_input(vcpkg QT_USE_VCPKG)
 translate_boolean_input(shared BUILD_SHARED_LIBS)
 translate_boolean_input(warnings_are_errors WARNINGS_ARE_ERRORS)
 translate_string_input(qt_namespace QT_NAMESPACE)
@@ -875,6 +911,7 @@ endif()
 
 drop_input(make)
 drop_input(nomake)
+translate_boolean_input(install-examples-sources QT_INSTALL_EXAMPLES_SOURCES)
 
 check_qt_build_parts(nomake)
 check_qt_build_parts(make)
@@ -896,9 +933,9 @@ if(INPUT_force_debug_info)
 endif()
 
 list(LENGTH build_configs nr_of_build_configs)
-if(nr_of_build_configs EQUAL 1)
+if(nr_of_build_configs EQUAL 1 AND NOT multi_config)
     push("-DCMAKE_BUILD_TYPE=${build_configs}")
-elseif(nr_of_build_configs GREATER 1)
+elseif(nr_of_build_configs GREATER 1 OR multi_config)
     set(multi_config ON)
     string(REPLACE ";" "[[;]]" escaped_build_configs "${build_configs}")
     # We must not use the push macro here to avoid variable expansion.
@@ -983,6 +1020,14 @@ endforeach()
 
 push("${MODULE_ROOT}")
 
+if(INPUT_sysroot)
+    qtConfAddWarning("The -sysroot option is deprecated and no longer has any effect. "
+                     "It is recommended to use a toolchain file instead, i.e., "
+                     "-DCMAKE_TOOLCHAIN_FILE=<filename>. "
+                     "Alternatively, you may use -DCMAKE_SYSROOT option "
+                     "to pass the sysroot to CMake.\n")
+endif()
+
 # Restore the escaped semicolons in arguments that are lists
 list(TRANSFORM cmake_args REPLACE "\\[\\[;\\]\\]" "\\\\;")
 
diff --git a/cmake/QtPublicAppleHelpers.cmake b/cmake/QtPublicAppleHelpers.cmake
index 1d489f09..7d9007ce 100644
--- a/cmake/QtPublicAppleHelpers.cmake
+++ b/cmake/QtPublicAppleHelpers.cmake
@@ -27,7 +27,7 @@ function(_qt_internal_handle_ios_launch_screen target)
     if(NOT launch_screen AND NOT QT_NO_SET_DEFAULT_IOS_LAUNCH_SCREEN)
         set(is_default_launch_screen TRUE)
         set(launch_screen
-            "${__qt_internal_cmake_ios_support_files_path}/LaunchScreen.storyboard")
+            "${__qt_internal_cmake_apple_support_files_path}/LaunchScreen.storyboard")
     endif()
 
     # Check that the launch screen exists.
@@ -554,15 +554,13 @@ function(_qt_internal_set_xcode_bitcode_enablement target)
         "NO")
 endfunction()
 
-function(_qt_internal_generate_ios_info_plist target)
+function(_qt_internal_copy_info_plist target)
     # If the project already specifies a custom file, we don't override it.
-    get_target_property(existing_plist "${target}" MACOSX_BUNDLE_INFO_PLIST)
-    if(existing_plist)
-        return()
+    get_target_property(info_plist_in "${target}" MACOSX_BUNDLE_INFO_PLIST)
+    if(NOT info_plist_in)
+        set(info_plist_in "${__qt_internal_cmake_apple_support_files_path}/Info.plist.app.in")
     endif()
 
-    set(info_plist_in "${__qt_internal_cmake_ios_support_files_path}/Info.plist.app.in")
-
     string(MAKE_C_IDENTIFIER "${target}" target_identifier)
     set(info_plist_out_dir
         "${CMAKE_CURRENT_BINARY_DIR}/.qt/info_plist/${target_identifier}")
@@ -592,6 +590,62 @@ function(_qt_internal_generate_ios_info_plist target)
     set_target_properties("${target}" PROPERTIES MACOSX_BUNDLE_INFO_PLIST "${info_plist_out}")
 endfunction()
 
+function(_qt_internal_plist_buddy plist_file)
+    cmake_parse_arguments(PARSE_ARGV 1 arg
+        "" "OUTPUT_VARIABLE;ERROR_VARIABLE" "COMMANDS")
+    foreach(command ${arg_COMMANDS})
+        execute_process(COMMAND "/usr/libexec/PlistBuddy"
+                                -c "${command}" "${plist_file}"
+                    OUTPUT_VARIABLE plist_buddy_output
+                    ERROR_VARIABLE plist_buddy_error)
+        string(STRIP "${plist_buddy_output}" plist_buddy_output)
+        if(arg_OUTPUT_VARIABLE)
+            list(APPEND ${arg_OUTPUT_VARIABLE} ${plist_buddy_output})
+            set(${arg_OUTPUT_VARIABLE} ${${arg_OUTPUT_VARIABLE}} PARENT_SCOPE)
+        endif()
+        if(arg_ERROR_VARIABLE)
+            list(APPEND ${arg_ERROR_VARIABLE} ${plist_buddy_error})
+            set(${arg_ERROR_VARIABLE} ${${arg_ERROR_VARIABLE}} PARENT_SCOPE)
+        endif()
+        if(plist_buddy_error)
+            return()
+        endif()
+    endforeach()
+endfunction()
+
+function(_qt_internal_set_apple_localizations target)
+    if(QT_NO_SET_PLIST_LOCALIZATIONS)
+        return()
+    endif()
+
+    get_target_property(supported_languages "${target}" _qt_apple_supported_languages)
+    if("${supported_languages}" STREQUAL "supported_languages-NOTFOUND")
+        return()
+    endif()
+    get_target_property(plist_file "${target}" MACOSX_BUNDLE_INFO_PLIST)
+    if (NOT plist_file)
+        return()
+    endif()
+
+    _qt_internal_plist_buddy("${plist_file}"
+        COMMANDS "print CFBundleLocalizations"
+        OUTPUT_VARIABLE existing_localizations
+    )
+    if(existing_localizations)
+        return()
+    endif()
+
+    list(TRANSFORM supported_languages PREPEND
+        "Add CFBundleLocalizations: string ")
+
+    _qt_internal_plist_buddy("${plist_file}"
+        COMMANDS
+            "Add CFBundleLocalizations array"
+            ${supported_languages}
+            "Delete CFBundleAllowMixedLocalizations"
+    )
+endfunction()
+
 function(_qt_internal_set_ios_simulator_arch target)
     if(CMAKE_XCODE_ATTRIBUTE_ARCHS
         OR QT_NO_SET_XCODE_ARCHS)
@@ -621,6 +675,9 @@ endfunction()
 function(_qt_internal_finalize_apple_app target)
     # Shared between macOS and iOS apps
 
+    _qt_internal_copy_info_plist("${target}")
+    _qt_internal_set_apple_localizations("${target}")
+
     # Only set the various properties if targeting the Xcode generator, otherwise the various
     # Xcode tokens are embedded as-is instead of being dynamically evaluated.
     # This affects things like the version number or application name as reported by Qt API.
@@ -637,12 +694,12 @@ function(_qt_internal_finalize_apple_app target)
 endfunction()
 
 function(_qt_internal_finalize_ios_app target)
-    _qt_internal_finalize_apple_app("${target}")
+    # Must be called before we generate the Info.plist
+    _qt_internal_handle_ios_launch_screen("${target}")
 
+    _qt_internal_finalize_apple_app("${target}")
     _qt_internal_set_xcode_targeted_device_family("${target}")
     _qt_internal_set_xcode_bitcode_enablement("${target}")
-    _qt_internal_handle_ios_launch_screen("${target}")
-    _qt_internal_generate_ios_info_plist("${target}")
     _qt_internal_set_ios_simulator_arch("${target}")
 endfunction()
 
diff --git a/cmake/QtPublicWasmToolchainHelpers.cmake b/cmake/QtPublicWasmToolchainHelpers.cmake
index 798258db..4ed223ed 100644
--- a/cmake/QtPublicWasmToolchainHelpers.cmake
+++ b/cmake/QtPublicWasmToolchainHelpers.cmake
@@ -53,7 +53,7 @@ endfunction()
 
 function(__qt_internal_get_emcc_recommended_version out_var)
     # This version of Qt needs this version of emscripten.
-    set(QT_EMCC_RECOMMENDED_VERSION "3.1.25")
+    set(QT_EMCC_RECOMMENDED_VERSION "3.1.37")
     set(${out_var} "${QT_EMCC_RECOMMENDED_VERSION}" PARENT_SCOPE)
 endfunction()
 
@@ -81,12 +81,16 @@ function(__qt_internal_get_qt_build_emsdk_version out_var)
     endif()
     if(EXISTS "${WASM_BUILD_DIR}/src/corelib/global/qconfig.h")
         file(READ "${WASM_BUILD_DIR}/src/corelib/global/qconfig.h" ver)
-    else()
+    elseif(EXISTS "${WASM_BUILD_DIR}/include/QtCore/qconfig.h")
         file(READ "${WASM_BUILD_DIR}/include/QtCore/qconfig.h" ver)
+    else()
+        message("qconfig.h not found, unable to determine Qt build Emscripten version")
+    endif()
+    if (ver)
+        string(REGEX MATCH "#define QT_EMCC_VERSION.\"[0-9]+\\.[0-9]+\\.[0-9]+\"" emOutput ${ver})
+        string(REGEX MATCH "[0-9]+\\.[0-9]+\\.[0-9]+" build_emcc_version "${emOutput}")
+        set(${out_var} "${build_emcc_version}" PARENT_SCOPE)
     endif()
-    string(REGEX MATCH "#define QT_EMCC_VERSION.\"[0-9]+\\.[0-9]+\\.[0-9]+\"" emOutput ${ver})
-    string(REGEX MATCH "[0-9]+\\.[0-9]+\\.[0-9]+" build_emcc_version "${emOutput}")
-    set(${out_var} "${build_emcc_version}" PARENT_SCOPE)
 endfunction()
 
 function(_qt_test_emscripten_version)
diff --git a/cmake/QtQmakeHelpers.cmake b/cmake/QtQmakeHelpers.cmake
index 51ca444e..89284b09 100644
--- a/cmake/QtQmakeHelpers.cmake
+++ b/cmake/QtQmakeHelpers.cmake
@@ -37,8 +37,6 @@ function(qt_generate_qconfig_cpp in_file out_file)
     set(QT_SYS_CONF_DIR "${INSTALL_SYSCONFDIR}")
 
     # Compute and set relocation prefixes.
-    # TODO: Clean this up, there's a bunch of unrealistic assumptions here.
-    # See qtConfOutput_preparePaths in qtbase/configure.pri.
     if(WIN32)
         set(lib_location_absolute_path
             "${QT_BUILD_INTERNALS_RELOCATABLE_INSTALL_PREFIX}/${INSTALL_BINDIR}")
@@ -213,6 +211,7 @@ function(qt_get_qmake_module_name result module)
     string(REGEX REPLACE "^Qt6" "" module "${module}")
     string(REGEX REPLACE "Private$" "_private" module "${module}")
     string(REGEX REPLACE "Qpa$" "_qpa_lib_private" module "${module}")
+    string(REGEX REPLACE "Rhi$" "_rhi_lib_private" module "${module}")
     string(TOLOWER "${module}" module)
     set(${result} ${module} PARENT_SCOPE)
 endfunction()
diff --git a/cmake/QtResourceHelpers.cmake b/cmake/QtResourceHelpers.cmake
index a3f86613..2df1fed5 100644
--- a/cmake/QtResourceHelpers.cmake
+++ b/cmake/QtResourceHelpers.cmake
@@ -3,10 +3,14 @@
 
 function(qt_internal_add_resource target resourceName)
     if(NOT TARGET "${target}")
-        qt_internal_is_in_test_batch(in_batch ${target})
-        if(NOT in_batch)
-            message(FATAL_ERROR "Trying to add resource to a non-existing target \"${target}\".")
-        endif()
+        message(FATAL_ERROR "${target} is not a target.")
+    endif()
+    qt_internal_is_skipped_test(skipped ${target})
+    if(skipped)
+        return()
+    endif()
+    qt_internal_is_in_test_batch(in_batch ${target})
+    if(in_batch)
         _qt_internal_test_batch_target_name(target)
     endif()
 
diff --git a/cmake/QtSetup.cmake b/cmake/QtSetup.cmake
index c8209840..762299f9 100644
--- a/cmake/QtSetup.cmake
+++ b/cmake/QtSetup.cmake
@@ -8,18 +8,14 @@
 set(QT_BUILDING_QT TRUE CACHE BOOL
         "When this is present and set to true, it signals that we are building Qt from source.")
 
-# Pre-calculate the developer_build feature if it's set by the user via INPUT_developer_build
-if(NOT FEATURE_developer_build AND INPUT_developer_build
-        AND NOT "${INPUT_developer_build}" STREQUAL "undefined")
-    set(FEATURE_developer_build ON)
-endif()
+# Pre-calculate the developer_build feature if it's set by the user via the INPUT_developer_build
+# variable when using the configure script. When not using configure, don't take the INPUT variable
+# into account, so that users can toggle the feature directly in the cache or via IDE.
+qt_internal_compute_feature_value_from_possible_input(developer_build)
 
 # Pre-calculate the no_prefix feature if it's set by configure via INPUT_no_prefix.
 # This needs to be done before qtbase/configure.cmake is processed.
-if(NOT FEATURE_no_prefix AND INPUT_no_prefix
-        AND NOT "${INPUT_no_prefix}" STREQUAL "undefined")
-    set(FEATURE_no_prefix ON)
-endif()
+qt_internal_compute_feature_value_from_possible_input(no_prefix)
 
 set(_default_build_type "Release")
 if(FEATURE_developer_build)
@@ -49,7 +45,20 @@ unset(QT_EXTRA_BUILD_INTERNALS_VARS)
 # Save the global property in a variable to make it available to feature conditions.
 get_property(QT_GENERATOR_IS_MULTI_CONFIG GLOBAL PROPERTY GENERATOR_IS_MULTI_CONFIG)
 
-if(NOT CMAKE_BUILD_TYPE AND NOT CMAKE_CONFIGURATION_TYPES)
+# Try to detect if an explicit CMAKE_BUILD_TYPE was set by the user.
+# CMake sets CMAKE_BUILD_TYPE_INIT to Debug on most Windows platforms and doesn't set
+# anything for UNIXes. CMake assigns CMAKE_BUILD_TYPE_INIT to CMAKE_BUILD_TYPE during
+# first project() if CMAKE_BUILD_TYPE has no previous value.
+# We use extra information about the state of CMAKE_BUILD_TYPE before the first
+# project() call that's set in QtAutodetect.
+# STREQUAL check needs to have expanded variables because an undefined var is not equal
+# to an empty defined var.
+# See also qt_internal_force_set_cmake_build_type_conditionally which is used
+# to set the build type when building other repos or tests.
+if("${CMAKE_BUILD_TYPE}" STREQUAL "${CMAKE_BUILD_TYPE_INIT}"
+    AND NOT __qt_auto_detect_cmake_build_type_before_project_call
+    AND NOT __qt_build_internals_cmake_build_type
+    AND NOT CMAKE_CONFIGURATION_TYPES)
   message(STATUS "Setting build type to '${_default_build_type}' as none was specified.")
   set(CMAKE_BUILD_TYPE "${_default_build_type}" CACHE STRING "Choose the type of build." FORCE)
   set_property(CACHE CMAKE_BUILD_TYPE
@@ -193,6 +202,8 @@ else()
     set(QT_INTERNAL_CONFIGURE_FROM_IDE FALSE CACHE INTERNAL "Configuring Qt Project from IDE")
 endif()
 
+set(_qt_sync_headers_at_configure_time_default ${QT_INTERNAL_CONFIGURE_FROM_IDE})
+
 if(FEATURE_developer_build)
     if(DEFINED QT_CMAKE_EXPORT_COMPILE_COMMANDS)
         set(CMAKE_EXPORT_COMPILE_COMMANDS ${QT_CMAKE_EXPORT_COMPILE_COMMANDS})
@@ -213,11 +224,26 @@ if(FEATURE_developer_build)
     if (CMAKE_BUILD_TYPE AND CMAKE_BUILD_TYPE STREQUAL Debug)
         set(__build_benchmarks OFF)
     endif()
+
+    # Sync headers during the initial configuration of a -developer-build to facilitate code
+    # navigation for code editors that use an LSP-based code model.
+    set(_qt_sync_headers_at_configure_time_default TRUE)
 else()
     set(_qt_build_tests_default OFF)
     set(__build_benchmarks OFF)
 endif()
 
+# Sync Qt header files at configure time
+option(QT_SYNC_HEADERS_AT_CONFIGURE_TIME "Run syncqt at configure time already"
+    ${_qt_sync_headers_at_configure_time_default})
+unset(_qt_sync_headers_at_configure_time_default)
+
+# In static Ninja Multi-Config builds the sync_headers dependencies(and other autogen dependencies
+# are not added to '_autogen/timestamp' targets. See QTBUG-113974.
+if(CMAKE_GENERATOR STREQUAL "Ninja Multi-Config" AND NOT QT_BUILD_SHARED_LIBS)
+    set(QT_SYNC_HEADERS_AT_CONFIGURE_TIME TRUE CACHE BOOL "" FORCE)
+endif()
+
 # Build Benchmarks
 option(QT_BUILD_BENCHMARKS "Build Qt Benchmarks" ${__build_benchmarks})
 if(QT_BUILD_BENCHMARKS)
@@ -255,10 +281,10 @@ endif()
 
 option(QT_BUILD_TESTS_BATCHED "Link all tests into a single binary." ${_qt_batch_tests})
 
-if(QT_BUILD_TESTS AND QT_BUILD_TESTS_BATCHED AND CMAKE_VERSION VERSION_LESS "3.18")
+if(QT_BUILD_TESTS AND QT_BUILD_TESTS_BATCHED AND CMAKE_VERSION VERSION_LESS "3.19")
     message(FATAL_ERROR
-        "Test batching requires at least CMake 3.18, due to requiring per-source "
-        "TARGET_DIRECTORY assignments.")
+        "Test batching requires at least CMake 3.19, due to requiring per-source "
+        "TARGET_DIRECTORY assignments and DEFER calls.")
 endif()
 
 # QT_BUILD_TOOLS_WHEN_CROSSCOMPILING -> QT_FORCE_BUILD_TOOLS
@@ -285,6 +311,9 @@ enable_testing()
 
 option(QT_BUILD_EXAMPLES "Build Qt examples" OFF)
 option(QT_BUILD_EXAMPLES_BY_DEFAULT "Should examples be built as part of the default 'all' target." ON)
+option(QT_INSTALL_EXAMPLES_SOURCES "Install example sources" OFF)
+option(QT_INSTALL_EXAMPLES_SOURCES_BY_DEFAULT
+    "Install example sources as part of the default 'install' target" ON)
 
 # FIXME: Support prefix builds as well QTBUG-96232
 if(QT_WILL_INSTALL)
@@ -354,31 +383,11 @@ endif()
 
 option(QT_ALLOW_SYMLINK_IN_PATHS "Allows symlinks in paths." OFF)
 
-# We need to clean up QT_FEATURE_*, but only once per configuration cycle
-get_property(qt_feature_clean GLOBAL PROPERTY _qt_feature_clean)
-if(NOT qt_feature_clean)
-    message(STATUS "Check for feature set changes")
-    set_property(GLOBAL PROPERTY _qt_feature_clean TRUE)
-    foreach(feature ${QT_KNOWN_FEATURES})
-        if(DEFINED "FEATURE_${feature}" AND
-            NOT "${QT_FEATURE_${feature}}" STREQUAL "${FEATURE_${feature}}")
-            message("    '${feature}' is changed from ${QT_FEATURE_${feature}} \
-to ${FEATURE_${feature}}")
-            set(dirty_build TRUE)
-        endif()
-        unset("QT_FEATURE_${feature}" CACHE)
-    endforeach()
-
-    set(QT_KNOWN_FEATURES "" CACHE INTERNAL "" FORCE)
-
-    if(dirty_build)
-        set_property(GLOBAL PROPERTY _qt_dirty_build TRUE)
-        message(WARNING "Re-configuring in existing build folder. \
-Some features will be re-evaluated automatically.")
-    endif()
-endif()
+qt_internal_detect_dirty_features()
 
 if(NOT QT_BUILD_EXAMPLES)
     # Disable deployment setup to avoid warnings about missing patchelf with CMake < 3.21.
     set(QT_SKIP_SETUP_DEPLOYMENT ON)
 endif()
+
+option(QT_ALLOW_DOWNLOAD "Allows files to be downloaded when building Qt." OFF)
diff --git a/cmake/QtSyncQtHelpers.cmake b/cmake/QtSyncQtHelpers.cmake
index f120a968..4dba8fcc 100644
--- a/cmake/QtSyncQtHelpers.cmake
+++ b/cmake/QtSyncQtHelpers.cmake
@@ -79,6 +79,7 @@ function(qt_internal_target_sync_headers target module_headers module_headers_ge
     endif()
 
     get_target_property(qpa_filter_regex ${target} _qt_module_qpa_headers_filter_regex)
+    get_target_property(rhi_filter_regex ${target} _qt_module_rhi_headers_filter_regex)
     get_target_property(private_filter_regex ${target} _qt_module_private_headers_filter_regex)
 
     # We need to use the real paths since otherwise it may lead to the invalid work of the
@@ -96,6 +97,12 @@ function(qt_internal_target_sync_headers target module_headers module_headers_ge
         )
     endif()
 
+    if(rhi_filter_regex)
+        set(rhi_filter_argument
+            -rhiHeadersFilter "${rhi_filter_regex}"
+        )
+    endif()
+
     set(common_syncqt_arguments
         -module "${module}"
         -sourceDir "${source_dir_real}"
@@ -104,8 +111,10 @@ function(qt_internal_target_sync_headers target module_headers module_headers_ge
         -includeDir "${module_build_interface_include_dir}"
         -privateIncludeDir "${module_build_interface_private_include_dir}"
         -qpaIncludeDir "${module_build_interface_qpa_include_dir}"
+        -rhiIncludeDir "${module_build_interface_rhi_include_dir}"
         -generatedHeaders ${module_headers_generated}
         ${qpa_filter_argument}
+        ${rhi_filter_argument}
         ${public_namespaces_filter}
         ${non_qt_module_argument}
         ${internal_module_argument}
@@ -178,6 +187,7 @@ function(qt_internal_target_sync_headers target module_headers module_headers_ge
             ${syncqt_args_rsp}
             ${module_headers}
             ${QT_CMAKE_EXPORT_NAMESPACE}::syncqt
+            "$<GENEX_EVAL:$<TARGET_PROPERTY:${target},_qt_internal_sync_headers_deps>>"
         COMMENT
             "Running syncqt.cpp for module: ${module}"
         VERBATIM
@@ -194,6 +204,8 @@ function(qt_internal_target_sync_headers target module_headers module_headers_ge
             ${syncqt_outputs}
     )
     add_dependencies(sync_headers ${target}_sync_headers)
+    set_target_properties(${target}
+        PROPERTIES _qt_internal_sync_headers_target ${target}_sync_headers)
 
     if(is_3rd_party_library)
         add_dependencies(thirdparty_sync_headers ${target}_sync_headers)
@@ -224,7 +236,7 @@ function(qt_internal_target_sync_headers target module_headers module_headers_ge
     endif()
     add_dependencies(sync_all_public_headers ${target}_sync_all_public_headers)
 
-    if(NOT is_3rd_party_library AND NOT is_framework)
+    if(NOT is_3rd_party_library AND NOT is_framework AND module_headers)
         # Install all the CaMeL style aliases of header files from the staging directory in one rule
         qt_install(DIRECTORY "${syncqt_staging_dir}/"
             DESTINATION "${module_install_interface_include_dir}"
@@ -246,7 +258,7 @@ function(qt_internal_target_sync_headers target module_headers module_headers_ge
     # Run sync Qt first time at configure step to make all header files available for the code model
     # of IDEs.
     get_property(synced_modules GLOBAL PROPERTY _qt_synced_modules)
-    if(NOT "${module}" IN_LIST synced_modules)
+    if(NOT "${module}" IN_LIST synced_modules AND QT_SYNC_HEADERS_AT_CONFIGURE_TIME)
         message(STATUS "Running syncqt.cpp for module: ${module}")
         get_target_property(syncqt_location ${QT_CMAKE_EXPORT_NAMESPACE}::syncqt LOCATION)
         execute_process(
diff --git a/cmake/QtTargetHelpers.cmake b/cmake/QtTargetHelpers.cmake
index 6e7ff453..180ec33b 100644
--- a/cmake/QtTargetHelpers.cmake
+++ b/cmake/QtTargetHelpers.cmake
@@ -20,10 +20,14 @@
 #     Skip the specified source files by PRECOMPILE_HEADERS feature.
 function(qt_internal_extend_target target)
     if(NOT TARGET "${target}")
-        qt_internal_is_in_test_batch(in_batch ${target})
-        if(NOT in_batch)
-            message(FATAL_ERROR "Trying to extend a non-existing target \"${target}\".")
-        endif()
+        message(FATAL_ERROR "${target} is not a target.")
+    endif()
+    qt_internal_is_skipped_test(skipped ${target})
+    if(skipped)
+        return()
+    endif()
+    qt_internal_is_in_test_batch(in_batch ${target})
+    if(in_batch)
         _qt_internal_test_batch_target_name(target)
     endif()
 
@@ -109,6 +113,19 @@ function(qt_internal_extend_target target)
             if(NOT base_lib STREQUAL lib)
                 qt_create_nolink_target("${base_lib}" ${target})
             endif()
+
+            # Collect _sync_headers targets from libraries that the target depends on. This is
+            # heuristic way of building the dependency tree between the _sync_headers targets of
+            # different Qt modules.
+            if(TARGET "${lib}")
+                get_target_property(is_private ${lib} _qt_is_private_module)
+                if(is_private)
+                    get_target_property(lib ${lib} _qt_public_module_target_name)
+                endif()
+                set(out_genex "$<TARGET_PROPERTY:${lib},_qt_internal_sync_headers_target>")
+                set_property(TARGET ${target}
+                    APPEND PROPERTY _qt_internal_sync_headers_deps "${out_genex}")
+            endif()
         endforeach()
 
         # Set-up the target
@@ -1018,6 +1035,24 @@ function(qt_internal_mark_as_internal_target target)
     set_target_properties(${target} PROPERTIES _qt_is_internal_target TRUE)
 endfunction()
 
+# Marks a target with a property to skip it adding it as a dependency when building examples as
+# ExternalProjects.
+# Needed to create a ${repo}_src global target that examples can depend on in multi-config builds
+# due to a bug in AUTOUIC.
+#
+# See QTBUG-110369.
+function(qt_internal_skip_dependency_for_examples target)
+    set_target_properties(${target} PROPERTIES _qt_skip_dependency_for_examples TRUE)
+endfunction()
+
+function(qt_internal_is_target_skipped_for_examples target out_var)
+    get_property(is_skipped TARGET ${target} PROPERTY _qt_skip_dependency_for_examples)
+    if(NOT is_skipped)
+        set(is_skipped FALSE)
+    endif()
+    set(${out_var} "${is_skipped}" PARENT_SCOPE)
+endfunction()
+
 function(qt_internal_link_internal_platform_for_object_library target)
     # We need to apply iOS bitcode flags to object libraries that are associated with internal
     # modules or plugins (e.g. object libraries added by qt_internal_add_resource,
@@ -1080,11 +1115,15 @@ endfunction()
 # The function disables one or multiple internal global definitions that are defined by the
 # qt_internal_add_global_definition function for a specific 'target'.
 function(qt_internal_undefine_global_definition target)
-    if(NOT TARGET ${target})
-        qt_internal_is_in_test_batch(in_batch ${target})
-        if(NOT ${in_batch})
-            message(FATAL_ERROR "${target} is not a target.")
-        endif()
+    if(NOT TARGET "${target}")
+        message(FATAL_ERROR "${target} is not a target.")
+    endif()
+    qt_internal_is_skipped_test(skipped ${target})
+    if(skipped)
+        return()
+    endif()
+    qt_internal_is_in_test_batch(in_batch ${target})
+    if(in_batch)
         _qt_internal_test_batch_target_name(target)
     endif()
 
@@ -1135,3 +1174,157 @@ function(qt_internal_get_target_sources_property out_var)
     endif()
     set(${out_var} "${${out_var}}" PARENT_SCOPE)
 endfunction()
+
+# This function collects target properties that contain generator expressions and needs to be
+# exported. This function is needed since the CMake EXPORT_PROPERTIES property doesn't support
+# properties that contain generator expressions.
+# Usage: qt_internal_add_genex_properties_export(target properties...)
+function(qt_internal_add_genex_properties_export target)
+    get_cmake_property(is_multi_config GENERATOR_IS_MULTI_CONFIG)
+
+    set(config_check_begin "")
+    set(config_check_end "")
+    if(is_multi_config)
+        list(GET CMAKE_CONFIGURATION_TYPES 0 first_config_type)
+
+        # The genex snippet is evaluated to '$<NOT:$<BOOL:$<CONFIG>>>' in the generated cmake file.
+        # The check is only applicable to the 'main' configuration. If user project doesn't use
+        # multi-config generator, then the check supposed to return true and the value from the
+        # 'main' configuration supposed to be used.
+        string(JOIN "" check_if_config_empty
+            "$<1:$><NOT:"
+                "$<1:$><BOOL:"
+                    "$<1:$><CONFIG$<ANGLE-R>"
+                "$<ANGLE-R>"
+            "$<ANGLE-R>"
+        )
+
+        # The genex snippet is evaluated to '$<CONFIG:'Qt config type'>' in the generated cmake
+        # file and checks if the config that user uses matches the generated cmake file config.
+        string(JOIN "" check_user_config
+            "$<1:$><CONFIG:$<CONFIG>$<ANGLE-R>"
+        )
+
+        # The genex snippet is evaluated to '$<$<OR:$<CONFIG:'Qt config type'>>:'Property content'>
+        # for non-main Qt configs and to
+        # $<$<OR:$<CONFIG:'Qt config type'>,$<NOT:$<BOOL:$<CONFIG>>>>:'Property content'> for the
+        # main Qt config. This guard is required to choose the correct value of the property for the
+        # user project according to the user config type.
+        # All genexes need to be escaped properly to protect them from evaluation by the
+        # file(GENERATE call in the qt_internal_export_genex_properties function.
+        string(JOIN "" config_check_begin
+            "$<1:$><"
+                "$<1:$><OR:"
+                    "${check_user_config}"
+                    "$<$<CONFIG:${first_config_type}>:$<COMMA>${check_if_config_empty}>"
+                "$<ANGLE-R>:"
+        )
+        set(config_check_end "$<ANGLE-R>")
+    endif()
+    set(target_name "${QT_CMAKE_EXPORT_NAMESPACE}::${target}")
+    foreach(property IN LISTS ARGN)
+        set(target_property_genex "$<TARGET_PROPERTY:${target_name},${property}>")
+        # All properties that contain lists need to be protected of processing by JOIN genex calls.
+        # So this escapes the semicolons for these list.
+        set(target_property_list_escape
+            "$<JOIN:$<GENEX_EVAL:${target_property_genex}>,\;>")
+        set(property_value
+            "\"${config_check_begin}${target_property_list_escape}${config_check_end}\"")
+        set_property(TARGET ${target} APPEND PROPERTY _qt_export_genex_properties_content
+            "${property} ${property_value}")
+    endforeach()
+endfunction()
+
+# This function executes generator expressions for the properties that are added by the
+# qt_internal_add_genex_properties_export function and sets the calculated values to the
+# corresponding properties in the generated ExtraProperties.cmake file. The file then needs to be
+# included after the target creation routines in Config.cmake files. It also supports Multi-Config
+# builds.
+# Arguments:
+# EXPORT_NAME_PREFIX:
+#    The portion of the file name before ExtraProperties.cmake
+# CONFIG_INSTALL_DIR:
+#    Installation location for the file.
+# TARGETS:
+#    The internal target names.
+function(qt_internal_export_genex_properties)
+    set(option_args "")
+    set(single_args
+        EXPORT_NAME_PREFIX
+        CONFIG_INSTALL_DIR
+    )
+    set(multi_args TARGETS)
+    cmake_parse_arguments(arg "${option_args}" "${single_args}" "${multi_args}" ${ARGN})
+
+    if(NOT arg_EXPORT_NAME_PREFIX)
+        message(FATAL_ERROR "qt_internal_export_genex_properties: "
+            "Missing EXPORT_NAME_PREFIX argument.")
+    endif()
+
+    if(NOT arg_TARGETS)
+        message(FATAL_ERROR "qt_internal_export_genex_properties: "
+            "TARGETS argument must contain at least one target")
+    endif()
+
+    foreach(target IN LISTS arg_TARGETS)
+        get_cmake_property(is_multi_config GENERATOR_IS_MULTI_CONFIG)
+
+        set(output_file_base_name "${arg_EXPORT_NAME_PREFIX}ExtraProperties")
+        set(should_append "")
+        set(config_suffix "")
+        if(is_multi_config)
+            list(GET CMAKE_CONFIGURATION_TYPES 0 first_config_type)
+            set(config_suffix "$<$<NOT:$<CONFIG:${first_config_type}>>:-$<CONFIG>>")
+            # If the generated file belongs to the 'main' config type, we should set property
+            # but not append it.
+            string(JOIN "" should_append
+                "$<$<NOT:$<CONFIG:${first_config_type}>>: APPEND>")
+        endif()
+        set(file_name "${output_file_base_name}${config_suffix}.cmake")
+
+        qt_path_join(output_file "${arg_CONFIG_INSTALL_DIR}"
+            "${file_name}")
+
+        if(NOT IS_ABSOLUTE "${output_file}")
+            qt_path_join(output_file "${QT_BUILD_DIR}" "${output_file}")
+        endif()
+
+        set(target_name "${QT_CMAKE_EXPORT_NAMESPACE}::${target}")
+
+        string(JOIN "" set_property_begin "set_property(TARGET "
+            "${target_name}${should_append} PROPERTY "
+        )
+        set(set_property_end ")")
+        set(set_property_glue "${set_property_end}\n${set_property_begin}")
+        set(property_list
+            "$<GENEX_EVAL:$<TARGET_PROPERTY:${target},_qt_export_genex_properties_content>>")
+        string(JOIN "" set_property_content "${set_property_begin}"
+            "$<JOIN:${property_list},${set_property_glue}>"
+            "${set_property_end}")
+
+        if(is_multi_config)
+            set(config_includes "")
+            foreach(config IN LISTS CMAKE_CONFIGURATION_TYPES)
+                if(NOT first_config_type STREQUAL config)
+                    set(include_file_name
+                        "${output_file_base_name}-${config}.cmake")
+                    list(APPEND config_includes
+                        "include(\"\${CMAKE_CURRENT_LIST_DIR}/${include_file_name}\")")
+                endif()
+            endforeach()
+            list(JOIN config_includes "\n" config_includes_string)
+            set(config_includes_string
+                "\n$<$<CONFIG:${first_config_type}>:${config_includes_string}>")
+        endif()
+
+        file(GENERATE OUTPUT "${output_file}"
+            CONTENT "$<$<BOOL:${property_list}>:${set_property_content}${config_includes_string}>"
+            CONDITION "$<BOOL:${property_list}>"
+        )
+    endforeach()
+
+    qt_install(FILES "$<$<BOOL:${property_list}>:${output_file}>"
+        DESTINATION "${arg_CONFIG_INSTALL_DIR}"
+        COMPONENT Devel
+    )
+endfunction()
diff --git a/cmake/QtTestHelpers.cmake b/cmake/QtTestHelpers.cmake
index 4c6b7d56..4978f955 100644
--- a/cmake/QtTestHelpers.cmake
+++ b/cmake/QtTestHelpers.cmake
@@ -247,6 +247,7 @@ function(qt_internal_add_test_to_batch batch_name name)
 
     # Lazy-init the test batch
     if(NOT TARGET ${target})
+        qt_internal_library_deprecation_level(deprecation_define)
         qt_internal_add_executable(${target}
             ${exceptions_text}
             ${gui_text}
@@ -254,11 +255,16 @@ function(qt_internal_add_test_to_batch batch_name name)
             NO_INSTALL
             OUTPUT_DIRECTORY "${CMAKE_BINARY_DIR}/build_dir"
             SOURCES "${QT_CMAKE_DIR}/qbatchedtestrunner.in.cpp"
-            DEFINES QTEST_BATCH_TESTS
+            DEFINES QTEST_BATCH_TESTS ${deprecation_define}
             INCLUDE_DIRECTORIES ${private_includes}
             LIBRARIES ${QT_CMAKE_EXPORT_NAMESPACE}::Core
                     ${QT_CMAKE_EXPORT_NAMESPACE}::Test
                     ${QT_CMAKE_EXPORT_NAMESPACE}::TestPrivate
+                    # Add GUI by default so that the plugins link properly with non-standalone
+                    # build of tests. Plugin handling is currently only done in
+                    # qt_internal_add_executable if Gui is present. This should be reevaluated with
+                    # multiple batches.
+                    ${QT_CMAKE_EXPORT_NAMESPACE}::Gui
         )
 
         set_property(TARGET ${target} PROPERTY _qt_has_exceptions ${arg_EXCEPTIONS})
@@ -309,17 +315,12 @@ function(qt_internal_add_test_to_batch batch_name name)
     list(PREPEND batched_test_list ${name})
     set_property(GLOBAL PROPERTY _qt_batched_test_list_property ${batched_test_list})
 
-    qt_internal_library_deprecation_level(deprecation_define)
-
     # Merge the current test with the rest of the batch
     qt_internal_extend_target(${target}
         INCLUDE_DIRECTORIES ${arg_INCLUDE_DIRECTORIES}
         PUBLIC_LIBRARIES ${arg_PUBLIC_LIBRARIES}
         LIBRARIES ${arg_LIBRARIES}
         SOURCES ${arg_SOURCES}
-        DEFINES
-            ${arg_DEFINES}
-            ${deprecation_define}
         COMPILE_OPTIONS ${arg_COMPILE_OPTIONS}
         COMPILE_FLAGS ${arg_COMPILE_FLAGS}
         LINK_OPTIONS ${arg_LINK_OPTIONS}
@@ -336,7 +337,7 @@ function(qt_internal_add_test_to_batch batch_name name)
         set_source_files_properties(${source}
                                     TARGET_DIRECTORY ${target}
                                     PROPERTIES COMPILE_DEFINITIONS
-                                        "BATCHED_TEST_NAME=\"${name}\"")
+                                        "BATCHED_TEST_NAME=\"${name}\";${arg_DEFINES}" )
     endforeach()
     set(${batch_name} ${target} PARENT_SCOPE)
 
@@ -363,6 +364,34 @@ function(qt_internal_is_in_test_batch out name)
     endif()
 endfunction()
 
+function(qt_internal_is_skipped_test out name)
+    get_target_property(is_skipped_test ${name} _qt_is_skipped_test)
+    set(${out} ${is_skipped_test} PARENT_SCOPE)
+endfunction()
+
+function(qt_internal_set_skipped_test name)
+    set_target_properties(${name} PROPERTIES _qt_is_skipped_test TRUE)
+endfunction()
+
+function(qt_internal_is_qtbase_test out)
+    get_filename_component(dir "${CMAKE_CURRENT_BINARY_DIR}" ABSOLUTE)
+    set(${out} FALSE PARENT_SCOPE)
+
+    while(TRUE)
+        get_filename_component(filename "${dir}" NAME)
+        if("${filename}" STREQUAL "qtbase")
+            set(${out} TRUE PARENT_SCOPE)
+            break()
+        endif()
+
+        set(prev_dir "${dir}")
+        get_filename_component(dir "${dir}" DIRECTORY)
+        if("${dir}" STREQUAL "${prev_dir}")
+            break()
+        endif()
+    endwhile()
+endfunction()
+
 function(qt_internal_get_batched_test_arguments out testname)
     if(WASM)
         # Add a query string to the runner document, so that the script therein
@@ -403,6 +432,32 @@ function(qt_internal_add_test name)
     _qt_internal_validate_all_args_are_parsed(arg)
     _qt_internal_validate_no_unity_build(arg)
 
+    set(batch_current_test FALSE)
+    if(QT_BUILD_TESTS_BATCHED AND NOT arg_NO_BATCH AND NOT arg_QMLTEST AND NOT arg_MANUAL
+            AND ("${QT_STANDALONE_TEST_PATH}" STREQUAL ""
+                 OR DEFINED ENV{QT_BATCH_STANDALONE_TESTS}))
+        set(batch_current_test TRUE)
+    endif()
+
+    if(batch_current_test OR (QT_BUILD_TESTS_BATCHED AND arg_QMLTEST))
+        if (QT_SUPERBUILD OR DEFINED ENV{TESTED_MODULE_COIN})
+            set(is_qtbase_test FALSE)
+            if(QT_SUPERBUILD)
+                qt_internal_is_qtbase_test(is_qtbase_test)
+            elseif($ENV{TESTED_MODULE_COIN} STREQUAL "qtbase")
+                set(is_qtbase_test TRUE)
+            endif()
+            if(NOT is_qtbase_test)
+                file(GENERATE OUTPUT "dummy${name}.cpp" CONTENT "int main() { return 0; }")
+                # Add a dummy target to tackle some potential problems
+                qt_internal_add_executable(${name} SOURCES "dummy${name}.cpp")
+                # Batched tests outside of qtbase are unsupported and skipped
+                qt_internal_set_skipped_test(${name})
+                return()
+            endif()
+        endif()
+    endif()
+
     if (NOT arg_OUTPUT_DIRECTORY)
         set(arg_OUTPUT_DIRECTORY "${CMAKE_CURRENT_BINARY_DIR}")
     endif()
@@ -421,9 +476,8 @@ function(qt_internal_add_test name)
             "removed in a future Qt version. Use the LIBRARIES option instead.")
     endif()
 
-    if(NOT arg_NO_BATCH AND QT_BUILD_TESTS_BATCHED AND NOT arg_QMLTEST AND NOT arg_MANUAL)
+    if(batch_current_test)
         qt_internal_add_test_to_batch(name ${name} ${ARGN})
-        set(setting_up_batched_test TRUE)
     elseif(arg_SOURCES)
         if(QT_BUILD_TESTS_BATCHED AND arg_QMLTEST)
             message(WARNING "QML tests won't be batched - unsupported (yet)")
@@ -499,7 +553,6 @@ function(qt_internal_add_test name)
         qt_internal_extend_target("${name}" CONDITION ANDROID
             LIBRARIES ${QT_CMAKE_EXPORT_NAMESPACE}::Gui
         )
-        set(setting_up_batched_test FALSE)
         set_target_properties(${name} PROPERTIES _qt_is_test_executable TRUE)
         set_target_properties(${name} PROPERTIES _qt_is_manual_test ${arg_MANUAL})
     endif()
@@ -550,7 +603,7 @@ function(qt_internal_add_test name)
     elseif(WASM)
         # The test script expects an html file. In case of batched tests, the
         # version specialized for running batches has to be supplied.
-        if(setting_up_batched_test)
+        if(batch_current_test)
             get_target_property(batch_output_dir ${name} RUNTIME_OUTPUT_DIRECTORY)
             set(test_executable "${batch_output_dir}/${name}.html")
         else()
@@ -562,11 +615,16 @@ function(qt_internal_add_test name)
         list(APPEND extra_test_args "--silence_timeout=60")
         # TODO: Add functionality to specify browser
         list(APPEND extra_test_args "--browser=chrome")
+        list(APPEND extra_test_args "--browser_args=\"--password-store=basic\"")
+        list(APPEND extra_test_args "--kill_exit")
 
-        # We always want to enable asyncify for tests, as some of them use exec
+        # Tests may require asyncify if they use exec(). Enable asyncify for
+        # batched tests since this is the configuration used on the CI system.
         # Optimize for size (-Os), since asyncify tends to make the resulting
         # binary very large
-        target_link_options("${name}" PRIVATE "SHELL:-s ASYNCIFY" "-Os")
+        if(batch_current_test)
+            target_link_options("${name}" PRIVATE "SHELL:-s ASYNCIFY" "-Os")
+        endif()
 
         # This tells cmake to run the tests with this script, since wasm files can't be
         # executed directly
@@ -588,9 +646,11 @@ function(qt_internal_add_test name)
     endif()
 
     if(NOT arg_MANUAL)
-        if(setting_up_batched_test)
+        if(batch_current_test)
             qt_internal_get_batched_test_arguments(batched_test_args ${testname})
             list(PREPEND extra_test_args ${batched_test_args})
+        elseif(WASM AND CMAKE_BUILD_TYPE STREQUAL "Debug")
+            list(PREPEND extra_test_args "qvisualoutput")
         endif()
 
         qt_internal_collect_command_environment(test_env_path test_env_plugin_path)
@@ -661,10 +721,29 @@ function(qt_internal_add_test name)
             foreach(testdata IN LISTS arg_TESTDATA)
                 list(APPEND builtin_files ${testdata})
             endforeach()
+            foreach(file IN LISTS builtin_files)
+                set_source_files_properties(${file}
+                    PROPERTIES QT_SKIP_QUICKCOMPILER TRUE
+                )
+            endforeach()
 
-            set(blacklist_path "BLACKLIST")
-            if(EXISTS "${CMAKE_CURRENT_SOURCE_DIR}/${blacklist_path}")
-                list(APPEND builtin_files ${blacklist_path})
+            if(batch_current_test)
+                set(blacklist_path "BLACKLIST")
+                if(EXISTS "${CMAKE_CURRENT_SOURCE_DIR}/${blacklist_path}")
+                    get_target_property(blacklist_files ${name} _qt_blacklist_files)
+                    if(NOT blacklist_files)
+                        set_target_properties(${name} PROPERTIES _qt_blacklist_files "")
+                        set(blacklist_files "")
+                        cmake_language(EVAL CODE "cmake_language(DEFER DIRECTORY \"${CMAKE_SOURCE_DIR}\" CALL \"_qt_internal_finalize_batch\" \"${name}\") ")
+                    endif()
+                    list(PREPEND blacklist_files "${CMAKE_CURRENT_SOURCE_DIR}/${blacklist_path}")
+                    set_target_properties(${name} PROPERTIES _qt_blacklist_files "${blacklist_files}")
+                endif()
+            else()
+                set(blacklist_path "BLACKLIST")
+                if(EXISTS "${CMAKE_CURRENT_SOURCE_DIR}/${blacklist_path}")
+                    list(APPEND builtin_files ${blacklist_path})
+                endif()
             endif()
 
             list(REMOVE_DUPLICATES builtin_files)
@@ -762,7 +841,8 @@ for this function. Will be ignored")
     endif()
 
     set(executable_name ${arg_NAME})
-    if(QT_BUILD_TESTS_BATCHED)
+    qt_internal_is_in_test_batch(is_in_batch ${executable_name})
+    if(is_in_batch)
         _qt_internal_test_batch_target_name(executable_name)
     endif()
     add_test(NAME "${arg_NAME}" COMMAND "${CMAKE_COMMAND}" "-P" "${arg_OUTPUT_FILE}"
@@ -828,8 +908,8 @@ function(qt_internal_add_test_helper name)
 
     set(extra_args_to_pass)
     if(NOT arg_OVERRIDE_OUTPUT_DIRECTORY)
-        if(QT_BUILD_TESTS_BATCHED)
-            _qt_internal_test_batch_target_name(test_batch_target_name)
+        _qt_internal_test_batch_target_name(test_batch_target_name)
+        if(QT_BUILD_TESTS_BATCHED AND TARGET ${test_batch_target_name})
             get_target_property(
                 test_batch_output_dir ${test_batch_target_name} RUNTIME_OUTPUT_DIRECTORY)
             set(extra_args_to_pass OUTPUT_DIRECTORY "${test_batch_output_dir}")
diff --git a/cmake/QtWasmHelpers.cmake b/cmake/QtWasmHelpers.cmake
index 614a677a..3eb97fa3 100644
--- a/cmake/QtWasmHelpers.cmake
+++ b/cmake/QtWasmHelpers.cmake
@@ -8,7 +8,8 @@ function (qt_internal_setup_wasm_target_properties wasmTarget)
     target_link_options("${wasmTarget}" INTERFACE
     "SHELL:-s MAX_WEBGL_VERSION=2"
     "SHELL:-s FETCH=1"
-    "SHELL:-s WASM_BIGINT=1")
+    "SHELL:-s WASM_BIGINT=1"
+    "SHELL:-s STACK_SIZE=5MB")
 
     target_link_libraries("${wasmTarget}" INTERFACE embind)
 
@@ -93,17 +94,25 @@ function (qt_internal_setup_wasm_target_properties wasmTarget)
 
         set_property(GLOBAL PROPERTY TARGET_SUPPORTS_SHARED_LIBS TRUE)
 
-        # plugins are SIDE_MODULE
-        target_compile_options("${wasmTarget}" INTERFACE
-        "$<$<STREQUAL:$<TARGET_PROPERTY:TYPE>,MODULE_LIBRARY>:" -s SIDE_MODULE=1>)
-        target_link_options("${wasmTarget}" INTERFACE
-        "$<$<STREQUAL:$<TARGET_PROPERTY:TYPE>,MODULE_LIBRARY>:" -s SIDE_MODULE=1>)
+        set(side_modules
+            MODULE_LIBRARY SHARED_LIBRARY)
+        set(enable_side_module_if_needed
+            "$<$<IN_LIST:$<TARGET_PROPERTY:TYPE>,${side_modules}>:SHELL:-s SIDE_MODULE=1>")
+        set(enable_main_module_if_needed
+            "$<$<IN_LIST:$<TARGET_PROPERTY:TYPE>,EXECUTABLE>:SHELL:-s MAIN_MODULE=1>")
+        set(set_shared_module_type_if_needed
+            "${enable_side_module_if_needed}"
+            "${enable_main_module_if_needed}"
+        )
 
-        # shared libs are SIDE_MODULE
-        target_compile_options("${wasmTarget}" INTERFACE
-        "$<$<STREQUAL:$<TARGET_PROPERTY:TYPE>,SHARED_LIBRARY>:" -s SIDE_MODULE=1>)
+        # Add Qt libdir to linker library paths
+        set(qt_lib_location
+            "${QT_BUILD_INTERNALS_RELOCATABLE_INSTALL_PREFIX}/${INSTALL_LIBDIR}")
         target_link_options("${wasmTarget}" INTERFACE
-        "$<$<STREQUAL:$<TARGET_PROPERTY:TYPE>,SHARED_LIBRARY>:" -s SIDE_MODULE=1>)
+            "$<$<STREQUAL:$<TARGET_PROPERTY:TYPE>,EXECUTABLE>:SHELL:" -L${qt_lib_location}/>)
+
+        target_compile_options("${wasmTarget}" INTERFACE "${set_shared_module_type_if_needed}")
+        target_link_options("${wasmTarget}" INTERFACE "${set_shared_module_type_if_needed}")
 
     else()
         target_link_options("${wasmTarget}" INTERFACE "SHELL:-s ERROR_ON_UNDEFINED_SYMBOLS=1")
diff --git a/cmake/QtWrapperScriptHelpers.cmake b/cmake/QtWrapperScriptHelpers.cmake
index bfb6d0d7..e87d0ad2 100644
--- a/cmake/QtWrapperScriptHelpers.cmake
+++ b/cmake/QtWrapperScriptHelpers.cmake
@@ -39,6 +39,20 @@ function(qt_internal_create_wrapper_scripts)
                    DESTINATION "${INSTALL_BINDIR}")
     endif()
 
+    if(generate_unix)
+        configure_file("${CMAKE_CURRENT_SOURCE_DIR}/bin/qt-cmake-create.in"
+                    "${QT_BUILD_DIR}/${INSTALL_BINDIR}/qt-cmake-create" @ONLY
+                    NEWLINE_STYLE LF)
+        qt_install(PROGRAMS "${QT_BUILD_DIR}/${INSTALL_BINDIR}/qt-cmake-create"
+                DESTINATION "${INSTALL_BINDIR}")
+    endif()
+    if(generate_non_unix)
+        configure_file("${CMAKE_CURRENT_SOURCE_DIR}/bin/qt-cmake-create.bat.in"
+                    "${QT_BUILD_DIR}/${INSTALL_BINDIR}/qt-cmake-create.bat" @ONLY
+                    NEWLINE_STYLE CRLF)
+        qt_install(PROGRAMS "${QT_BUILD_DIR}/${INSTALL_BINDIR}/qt-cmake-create.bat"
+                DESTINATION "${INSTALL_BINDIR}")
+    endif()
     # Provide a private convenience wrapper with options which should not be propagated via the
     # public qt-cmake wrapper e.g. CMAKE_GENERATOR.
     # These options can not be set in a toolchain file, but only on the command line.
diff --git a/cmake/README.md b/cmake/README.md
index 9800dae1..ac9d1012 100644
--- a/cmake/README.md
+++ b/cmake/README.md
@@ -313,3 +313,16 @@ $ cd some/empty/directory
 $ ~/Qt/6.0.0/bin/qt-cmake-standalone-test ~/source/of/qtbase/test/auto/corelib/io/qprocess
 $ cmake --build .
 ```
+
+## qt-cmake-create
+
+Generates a simple CMakeLists.txt based on source files in specified project directory.
+
+Example:
+
+```
+$ cd some/source/directory/
+$ qt-cmake-create
+$ qt-cmake -S . -B /build/directory
+$ cmake --build /build/directory
+```
diff --git a/cmake/configure-cmake-mapping.md b/cmake/configure-cmake-mapping.md
index 383c64ca..84d6b53b 100644
--- a/cmake/configure-cmake-mapping.md
+++ b/cmake/configure-cmake-mapping.md
@@ -17,7 +17,6 @@ The following table describes the mapping of configure options to CMake argument
 | -no-feature-foo                       | -DFEATURE_foo=OFF                                 |                                                                 |
 | -list-features                        |                                                   | At the moment: configure with cmake once,                       |
 |                                       |                                                   | then use ccmake or cmake-gui to inspect the features.           |
-| -list-libraries                       |                                                   |                                                                 |
 | -opensource                           | n/a                                               |                                                                 |
 | -commercial                           | n/a                                               |                                                                 |
 | -confirm-license                      | n/a                                               |                                                                 |
@@ -60,6 +59,7 @@ The following table describes the mapping of configure options to CMake argument
 | -R <string>                           | -DQT_EXTRA_RPATHS=path1;path2                     |                                                                 |
 | -rpath                                | negative CMAKE_SKIP_BUILD_RPATH                   |                                                                 |
 |                                       | negative CMAKE_SKIP_INSTALL_RPATH                 |                                                                 |
+|                                       | negative CMAKE_MACOSX_RPATH                       |                                                                 |
 | -reduce-exports                       | -DFEATURE_reduce_exports=ON                       |                                                                 |
 | -reduce-relocations                   | -DFEATURE_reduce_relocations=ON                   |                                                                 |
 | -plugin-manifests                     |                                                   |                                                                 |
@@ -75,16 +75,9 @@ The following table describes the mapping of configure options to CMake argument
 | -ccache                               | -DQT_USE_CCACHE=ON                                |                                                                 |
 | -unity-build                          | -DQT_UNITY_BUILD=ON                               |                                                                 |
 | -unity-build-batch-size <int>         | -DQT_UNITY_BUILD_BATCH_SIZE=<int>                 |                                                                 |
-| -make-tool <tool>                     | n/a                                               |                                                                 |
-| -mp                                   | n/a                                               |                                                                 |
 | -warnings-are-errors                  | -DWARNINGS_ARE_ERRORS=ON                          |                                                                 |
-| -silent                               | n/a                                               |                                                                 |
-| -sysroot <dir>                        | -DCMAKE_SYSROOT=<dir>                             | Should be provided by a toolchain file that's                   |
-|                                       |                                                   | passed via -DCMAKE_TOOLCHAIN_FILE=<filename>                    |
-| -no-gcc-sysroot                       | n/a                                               | The corresponding CMake variables are CMAKE_SYSROOT_LINK        |
-|                                       |                                                   | and CMAKE_SYSROOT_COMPILE.                                      |
-|                                       |                                                   | They are usually set in a toolchain file.                       |
 | -no-pkg-config                        | -DFEATURE_pkg_config=OFF                          |                                                                 |
+| -no-vcpkg                             | -DQT_USE_VCPKG=OFF                                |                                                                 |
 | -D <string>                           | -DQT_EXTRA_DEFINES=<string1>;<string2>            |                                                                 |
 | -I <string>                           | -DQT_EXTRA_INCLUDEPATHS=<string1>;<string2>       |                                                                 |
 | -L <string>                           | -DQT_EXTRA_LIBDIRS=<string1>;<string2>            |                                                                 |
@@ -110,6 +103,7 @@ The following table describes the mapping of configure options to CMake argument
 |                                       |                                                   | build them separately, after configuration.                     |
 | -nomake <part>                        | -DQT_BUILD_TESTS=OFF                              | A way to turn off tools explicitly is missing.                  |
 |                                       | -DQT_BUILD_EXAMPLES=OFF                           |                                                                 |
+| -install-examples-sources             | -DQT_INSTALL_EXAMPLES_SOURCES=ON                  |                                                                 |
 | -no-gui                               | -DFEATURE_gui=OFF                                 |                                                                 |
 | -no-widgets                           | -DFEATURE_widgets=OFF                             |                                                                 |
 | -no-dbus                              | -DFEATURE_dbus=OFF                                |                                                                 |
diff --git a/cmake/macos/MacOSXBundleInfo.plist.in b/cmake/macos/Info.plist.app.in
similarity index 100%
rename from cmake/macos/MacOSXBundleInfo.plist.in
rename to cmake/macos/Info.plist.app.in
diff --git a/cmake/modulecppexports.h.in b/cmake/modulecppexports.h.in
index 538c40e5..4d41a3a2 100644
--- a/cmake/modulecppexports.h.in
+++ b/cmake/modulecppexports.h.in
@@ -1,11 +1,13 @@
 // Copyright (C) 2022 The Qt Company Ltd.
 // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
 
-#include <QtCore/qglobal.h>
-
 #ifndef @header_base_name_upper@_H
 #define @header_base_name_upper@_H
 
+#include <QtCore/qcompilerdetection.h>
+#include <QtCore/qtconfigmacros.h> // Q_@module_define_infix@_EXPORT
+#include <QtCore/qtdeprecationmarkers.h> // QT_IF_DEPRECATED_SINCE
+
 #if defined(QT_SHARED) || !defined(QT_STATIC)
 #  if defined(QT_BUILD_@module_define_infix@_LIB)
 #    define Q_@module_define_infix@_EXPORT Q_DECL_EXPORT
diff --git a/cmake/modulecppexports_p.h.in b/cmake/modulecppexports_p.h.in
index 5f873e3c..c4e029d5 100644
--- a/cmake/modulecppexports_p.h.in
+++ b/cmake/modulecppexports_p.h.in
@@ -4,6 +4,8 @@
 #ifndef @header_base_name_upper@_P_H
 #define @header_base_name_upper@_P_H
 
+// This file is autogenerated. Changes will be overwritten.
+
 //
 //  W A R N I N G
 //  -------------
diff --git a/coin/axivion/ci_config_linux.json b/coin/axivion/ci_config_linux.json
new file mode 100644
index 00000000..23547815
--- /dev/null
+++ b/coin/axivion/ci_config_linux.json
@@ -0,0 +1,65 @@
+{
+    "Project": {
+        "Git": {
+            "_active": true,
+            "sourceserver_gitdir": "/data/axivion/databases/$(env:TESTED_MODULE_COIN).git"
+        },
+        "BuildSystemIntegration": {
+            "child_order": [
+                "GCCSetup",
+                "CMake",
+                "LinkLibraries"
+            ]
+        },
+        "CMake": {
+            "_active": true,
+            "_copy_from": "CMakeIntegration",
+            "build_environment": {},
+            "build_options": "-j4",
+            "generate_options": "--fresh",
+            "generator": "Ninja"
+        },
+        "GCCSetup": {
+            "_active": true,
+            "_copy_from": "Command",
+            "build_command": "gccsetup --cc gcc --cxx g++ --config ../../../axivion/"
+        },
+        "LinkLibraries": {
+            "_active": true,
+            "_copy_from": "AxivionLinker",
+            "input_files": [
+                "build/lib/lib*.so*.ir"
+            ],
+            "ir": "build/$(env:TESTED_MODULE_COIN).ir",
+            "plugin_files": [
+                "build/plugins/*/lib*.so*.ir"
+            ]
+        },
+        "Project-GlobalOptions": {
+            "ci_mode": {
+                "clean_before": false
+            },
+            "directory": "../work/qt/$(env:TESTED_MODULE_COIN)",
+            "ir": "build/$(env:TESTED_MODULE_COIN).ir",
+            "name": "qt_$(env:TESTED_MODULE_COIN)_dev_$(env:TARGET_OS_COIN)"
+        }
+    },
+    "Results": {
+        "Dashboard": {
+            "dashboard_url": "https://axivion-srv.ci.qt.io/axivion/"
+        },
+        "Database": {
+            "ci_mode": {
+                "directory": "/data/axivion/databases"
+            }
+        }
+    },
+    "_Format": "1.0",
+    "_Version": "trunk-9e0ef9c5818",
+    "_VersionNum": [
+        7,
+        6,
+        9999,
+        11489
+    ]
+}
diff --git a/coin/instructions/cmake_module_build_instructions.yaml b/coin/instructions/cmake_module_build_instructions.yaml
index f83d8711..88717ba2 100644
--- a/coin/instructions/cmake_module_build_instructions.yaml
+++ b/coin/instructions/cmake_module_build_instructions.yaml
@@ -76,9 +76,14 @@ instructions:
   - !include "{{qt/qtbase}}/call_host_install.yaml"
   - type: SignPackage
     enable_if:
-      condition: property
-      property: host.os
-      equals_value: Windows
+      condition: and
+      conditions:
+        - condition: property
+          property: host.os
+          equals_value: Windows
+        - condition: property
+          property: features
+          contains_value: Packaging
     directory: "{{.InstallRoot}}/{{.AgentWorkingDir}}"
     maxTimeInSeconds: 1200
     maxTimeBetweenOutput: 1200
diff --git a/coin/instructions/cmake_qtbase_build_instructions.yaml b/coin/instructions/cmake_qtbase_build_instructions.yaml
index 399ae731..47c3fabc 100644
--- a/coin/instructions/cmake_qtbase_build_instructions.yaml
+++ b/coin/instructions/cmake_qtbase_build_instructions.yaml
@@ -73,9 +73,14 @@ instructions:
   - !include "{{qt/qtbase}}/call_host_install.yaml"
   - type: SignPackage
     enable_if:
-      condition: property
-      property: host.os
-      equals_value: Windows
+      condition: and
+      conditions:
+        - condition: property
+          property: host.os
+          equals_value: Windows
+        - condition: property
+          property: features
+          contains_value: Packaging
     directory: "{{.InstallRoot}}/{{.AgentWorkingDir}}"
     maxTimeInSeconds: 1200
     maxTimeBetweenOutput: 1200
diff --git a/coin/instructions/coin_module_axivion_template_v2.yaml b/coin/instructions/coin_module_axivion_template_v2.yaml
new file mode 100644
index 00000000..0eebe34e
--- /dev/null
+++ b/coin/instructions/coin_module_axivion_template_v2.yaml
@@ -0,0 +1,98 @@
+analysis_instructions_axivion: &analysis_instructions_axivion
+  type: Group
+  instructions:
+    - type: Group
+      instructions:
+      - type: EnvironmentVariable
+        variableName: AXIVION_CHAINLOAD_TOOLCHAIN_FILE
+        variableValue: "{{.AgentWorkingDir}}/install/lib/cmake/Qt6/qt.toolchain.cmake"
+      - type: EnvironmentVariable
+        variableName: CMAKE_PREFIX_PATH
+        variableValue: "{{.AgentWorkingDir}}/install/lib/cmake"
+        enable_if:
+          condition: runtime
+          env_var: TESTED_MODULE_COIN
+          not_equals_value: "qtbase"
+    - type: Group
+      instructions:
+      - type: Rename
+        sourcePath: "{{.SourceDir}}/coin/axivion/ci_config_{{.Env.TARGET_OS_COIN}}.json"
+        targetPath: "{{.Env.HOME}}/axivion/ci_config.json"
+        userMessageOnFailure: "Moving ci_config.json failed. Make sure you have included the file in coin/axivion/ -folder"
+      - type: SetBuildDirectory
+        directory: "{{.SourceDir}}"
+      - type: ChangeDirectory
+        directory: "{{.BuildDir}}"
+      - type: ExecuteCommand
+        command: ["../../../axivion/start_analysis.sh"]
+        maxTimeInSeconds: 28800
+        maxTimeBetweenOutput: 28800
+        userMessageOnFailure: "Failed to run analysis"
+
+build_environment_axivion: &build_environment_axivion
+  type: Group
+  instructions:
+    - type: ExecuteCommand
+      command: ["sudo", "mkdir", "-p","/data/axivion"]
+      maxTimeInSeconds: 100
+      maxTimeBetweenOutput: 100
+      userMessageOnFailure: "Create mount point for results failed"
+    - type: ExecuteCommand
+      command: ["sudo", "mount", "-o", "rw", "10.212.0.93:/data/axivion", "/data/axivion"]
+      maxTimeInSeconds: 100
+      maxTimeBetweenOutput: 100
+      userMessageOnFailure: "Mount failed"
+    - type: ExecuteCommand
+      command: ["rm","-rf","{{.SourceDir}}"]
+      maxTimeInSeconds: 100
+      maxTimeBetweenOutput: 100
+      userMessageOnFailure: "Failed to remove source directory"
+    - type: MakeDirectory
+      directory: "{{.SourceDir}}"
+    - type: ChangeDirectory
+      directory: "{{.SourceDir}}"
+    - type: ExecuteCommand
+      command: ["git", "clone", "--jobs={{.NumCPU}}", "-n","--depth=50", "git://{{.Env.QT_COIN_GIT_DAEMON}}/qt-project/qt/{{.Env.TESTED_MODULE_COIN}}","."]
+      maxTimeInSeconds: 900
+      maxTimeBetweenOutput: 900
+      userMessageOnFailure: "Failed to clone repository"
+    - type: ExecuteCommand
+      command: ["git", "fetch", "--recurse-submodules", "origin", "{{.Env.TESTED_MODULE_REVISION_COIN}}"]
+      maxTimeInSeconds: 900
+      maxTimeBetweenOutput: 900
+      userMessageOnFailure: "Failed to fetch sources"
+    - type: ExecuteCommand
+      command: ["git", "checkout", "--force", "{{.Env.TESTED_MODULE_REVISION_COIN}}"]
+      maxTimeInSeconds: 900
+      maxTimeBetweenOutput: 900
+      userMessageOnFailure: "Failed to checkout sources"
+    - type: ExecuteCommand
+      command: ["git", "submodule", "update", "--init", "--recursive"]
+      maxTimeInSeconds: 1800
+      maxTimeBetweenOutput: 900
+      userMessageOnFailure: "Failed to initialize git submodules"
+    - type: Group
+      instructions:
+      - !include "{{qt/qtbase}}/cmake_module_build_instructions.yaml"
+      enable_if:
+        condition: runtime
+        env_var: TESTED_MODULE_COIN
+        not_equals_value: "qtbase"
+    - type: Group
+      instructions:
+      - !include "{{qt/qtbase}}/cmake_qtbase_build_instructions.yaml"
+      enable_if:
+        condition: runtime
+        env_var: TESTED_MODULE_COIN
+        equals_value: "qtbase"
+
+type: Group
+instructions:
+  - !include "{{qt/qtbase}}/prepare_building_env.yaml"
+  - *build_environment_axivion
+  - *analysis_instructions_axivion
+enable_if:
+  condition: property
+  property: features
+  contains_value: Axivion
+
diff --git a/coin/instructions/coin_module_build_template_v2.yaml b/coin/instructions/coin_module_build_template_v2.yaml
index 14c85558..2b36fb1c 100644
--- a/coin/instructions/coin_module_build_template_v2.yaml
+++ b/coin/instructions/coin_module_build_template_v2.yaml
@@ -24,6 +24,33 @@ instructions:
         - condition: property
           property: features
           not_contains_value: "TargetBuildOnly"
+        - condition: property
+          property: features
+          not_contains_value: "DebianPackaging"
+        - condition: property
+          property: features
+          not_contains_value: Axivion
+  - type: Group
+    instructions:
+       - !include "{{qt/qtbase}}/coin_module_axivion_template_v2.yaml"
+    enable_if:
+      condition: and
+      conditions:
+        - condition: property
+          property: features
+          contains_value: Axivion
+        - condition: runtime
+          env_var: TESTED_MODULE_COIN
+          not_equals_value: "qtdoc"
+        - condition: runtime
+          env_var: TESTED_MODULE_COIN
+          not_equals_value: "qtquickeffectmaker"
+        - condition: runtime
+          env_var: TESTED_MODULE_COIN
+          not_equals_value: "qttranslations"
+        - condition: runtime
+          env_var: TESTED_MODULE_COIN
+          not_equals_value: "qtwebengine"
   - type: Group
     instructions:
       - !include "{{qt/qtbase}}/cmake_cross_compilation_module_build_instructions.yaml"
@@ -48,3 +75,15 @@ instructions:
             - condition: property
               property: target.arch
               equals_value: ARM64
+            - condition: property
+              property: features
+              not_contains_value: "DebianPackaging"
+  - type: Group
+    instructions:
+      - type: Group
+        instructions:
+          - !include "{{qt/qtbase}}/debian/debian_build_module.yaml"
+        enable_if:
+          condition: property
+          property: features
+          contains_value: "DebianPackaging"
diff --git a/coin/instructions/coin_qtbase_build_template_v2.yaml b/coin/instructions/coin_qtbase_build_template_v2.yaml
index a0edaa8e..e5ae8068 100644
--- a/coin/instructions/coin_qtbase_build_template_v2.yaml
+++ b/coin/instructions/coin_qtbase_build_template_v2.yaml
@@ -17,6 +17,19 @@ instructions:
         - condition: property
           property: features
           not_contains_value: "TargetBuildOnly"
+        - condition: property
+          property: features
+          not_contains_value: "DebianPackaging"
+        - condition: property
+          property: features
+          not_contains_value: Axivion
+  - type: Group
+    instructions:
+       - !include "{{qt/qtbase}}/coin_module_axivion_template_v2.yaml"
+    enable_if:
+      condition: property
+      property: features
+      contains_value: Axivion
   - type: Group
     instructions:
       - type: Group
@@ -53,3 +66,15 @@ instructions:
             - condition: property
               property: target.arch
               equals_value: ARM64
+            - condition: property
+              property: features
+              not_contains_value: "DebianPackaging"
+  - type: Group
+    instructions:
+      - type: Group
+        instructions:
+          - !include "{{qt/qtbase}}/debian/debian_build_module.yaml"
+        enable_if:
+          condition: property
+          property: features
+          contains_value: "DebianPackaging"
diff --git a/coin/instructions/debian/debian_build_module.yaml b/coin/instructions/debian/debian_build_module.yaml
new file mode 100644
index 00000000..a302c07b
--- /dev/null
+++ b/coin/instructions/debian/debian_build_module.yaml
@@ -0,0 +1,125 @@
+type: Group
+enable_if:
+  condition: property
+  property: features
+  contains_value: DebianPackaging
+instructions:
+  - !include "{{qt/qtbase}}/debian/prepare_debian_env.yaml"
+  - type: EnvironmentVariable
+    variableName: GIT_SSH_COMMAND
+    variableValue: "ssh -o StrictHostKeyChecking=no"
+  - type: ChangeDirectory
+    directory: "{{.AgentWorkingDir}}"
+  - type: MakeDirectory
+    directory: output/debian_packages
+  - type: MakeDirectory
+    directory: debian_packages
+  - type: ExecuteCommand
+    command: "git clone git@git.qt.io:tqtc-debian/package_generator.git"
+    maxTimeInSeconds: 900
+    maxTimeBetweenOutput: 900
+    userMessageOnFailure: "Failed to clone package generator repo"
+    disable_if:
+      condition: runtime
+      env_var:  COIN_SKIP_DEBIAN
+      contains_value: "MISSING_DEBIAN_INST"
+  - type: ExecuteCommand
+    command: "git clone -b 6.6 git@git.qt.io:tqtc-debian/qt6-{{.Env.TESTED_MODULE_PLAIN_COIN}}.git"
+    maxTimeInSeconds: 900
+    maxTimeBetweenOutput: 900
+    userMessageOnFailure: "Failed to clone debian packaging repo"
+    disable_if:
+      condition: runtime
+      env_var:  COIN_SKIP_DEBIAN
+      contains_value: "MISSING_DEBIAN_INST"
+  - type: ChangeDirectory
+    directory: "qt6-{{.Env.TESTED_MODULE_PLAIN_COIN}}"
+    disable_if:
+      condition: runtime
+      env_var:  COIN_SKIP_DEBIAN
+      contains_value: "MISSING_DEBIAN_INST"
+  - type: ExecuteCommand
+    command: "git checkout {{.Env.DEBIAN_RULES_REF}}"
+    maxTimeInSeconds: 900
+    maxTimeBetweenOutput: 900
+    userMessageOnFailure: "Failed to checkout debian rules branch"
+    disable_if:
+      condition: or
+      conditions:
+      - condition: runtime
+        env_var:  DEBIAN_RULES_REF
+        equals_value: null
+      - condition: runtime
+        env_var:  COIN_SKIP_DEBIAN
+        contains_value: "MISSING_DEBIAN_INST"
+  - type: ChangeDirectory
+    directory: "{{.AgentWorkingDir}}"
+  - type: ExecuteCommand
+    command: "wget -q {{.CoinDownloadURL}}/{{.Env.MODULE_SOURCES_RELATIVE_STORAGE_PATH}}"
+    maxTimeInSeconds: 900
+    maxTimeBetweenOutput: 900
+    userMessageOnFailure: "Failed get sources"
+    disable_if:
+      condition: runtime
+      env_var:  COIN_SKIP_DEBIAN
+      contains_value: "MISSING_DEBIAN_INST"
+  - type: ExecuteCommand
+    command: "mv sources_unix.tar.gz qt-{{.Env.QT_REPO_MODULE_VERSION}}-{{.Env.TESTED_MODULE_PLAIN_COIN}}-src_{{.Env.QT_REPO_MODULE_VERSION}}.orig.tar.gz"
+    maxTimeInSeconds: 900
+    maxTimeBetweenOutput: 900
+    userMessageOnFailure: "Failed rename src pkg"
+    disable_if:
+      condition: runtime
+      env_var:  COIN_SKIP_DEBIAN
+      contains_value: "MISSING_DEBIAN_INST"
+  - type: ChangeDirectory
+    directory: "{{.AgentWorkingDir}}/qt6-{{.Env.TESTED_MODULE_PLAIN_COIN}}"
+    disable_if:
+      condition: runtime
+      env_var:  COIN_SKIP_DEBIAN
+      contains_value: "MISSING_DEBIAN_INST"
+
+
+  # rc is required currently by the script
+  - type: ExecuteCommand
+    command: "../package_generator/generate_packaging.sh --qt-version {{.Env.QT_REPO_MODULE_VERSION}} --deb-rev 1 --release tqtc-focal"
+    maxTimeInSeconds: 900
+    maxTimeBetweenOutput: 900
+    userMessageOnFailure: "Failed to generate pkg"
+    disable_if:
+      condition: runtime
+      env_var:  COIN_SKIP_DEBIAN
+      contains_value: "MISSING_DEBIAN_INST"
+  - type: ChangeDirectory
+    directory: "{{.AgentWorkingDir}}"
+  - type: ExecuteCommand
+    command: "dpkg-source -b qt6-{{.Env.TESTED_MODULE_PLAIN_COIN}}"
+    maxTimeInSeconds: 900
+    maxTimeBetweenOutput: 900
+    userMessageOnFailure: "Failed dpkg-source"
+    disable_if:
+      condition: runtime
+      env_var:  COIN_SKIP_DEBIAN
+      contains_value: "MISSING_DEBIAN_INST"
+  - type: ExecuteCommand
+    command: ["sbuild",
+      "--build-dep-resolver=apt",
+      "-sAd", "tqtc-focal",
+      "-c", "{{.Env.COIN_SBUILD_CHROOT}}",
+      "--build-dir", "output/debian_packages",
+      "--extra-repository={{.Env.COIN_EXTRA_DEBIAN_REPO}}",
+      "--extra-package={{.Env.COIN_EXTRA_DEBIAN_PACKAGES}}",
+      "--extra-package={{.AgentWorkingDir}}/debian_packages/",
+      "qt-{{.Env.QT_REPO_MODULE_VERSION}}-{{.Env.TESTED_MODULE_PLAIN_COIN}}-src_{{.Env.QT_REPO_MODULE_VERSION}}-1.dsc"]
+    maxTimeInSeconds: 18000
+    maxTimeBetweenOutput: 18000
+    userMessageOnFailure: "Failed build debian packages"
+    disable_if:
+      condition: runtime
+      env_var:  COIN_SKIP_DEBIAN
+      contains_value: "MISSING_DEBIAN_INST"
+  - type: UploadArtifact
+    archiveDirectory: "{{.AgentWorkingDir}}/output"
+    transferType: UploadModuleBuildArtifact
+    maxTimeInSeconds: 1200
+    maxTimeBetweenOutput: 1200
diff --git a/coin/instructions/debian/prepare_debian_env.yaml b/coin/instructions/debian/prepare_debian_env.yaml
new file mode 100644
index 00000000..fd130ceb
--- /dev/null
+++ b/coin/instructions/debian/prepare_debian_env.yaml
@@ -0,0 +1,85 @@
+type: Group
+enable_if:
+  condition: property
+  property: features
+  contains_value: DebianPackaging
+instructions:
+  - type: EnvironmentVariable
+    variableName: COIN_SBUILD_CHROOT
+    variableValue: "stable-arm64-sbuild"
+    enable_if:
+      condition: and
+      conditions:
+        - condition: runtime
+          env_var:  COIN_SBUILD_CHROOT
+          equals_value: null
+        - condition: property
+          property: target.arch
+          equals_value: AARCH64
+  - type: EnvironmentVariable
+    variableName: COIN_SBUILD_CHROOT
+    variableValue: "stable-amd64-sbuild"
+    enable_if:
+      condition: and
+      conditions:
+        - condition: runtime
+          env_var:  COIN_SBUILD_CHROOT
+          equals_value: null
+        - condition: property
+          property: target.arch
+          equals_value: X86_64
+  - type: EnvironmentVariable
+    variableName: COIN_SBUILD_DISTRO
+    variableValue: "arm64-focal"
+    enable_if:
+      condition: property
+      property: target.arch
+      equals_value: AARCH64
+  - type: EnvironmentVariable
+    variableName: COIN_SBUILD_DISTRO
+    variableValue: "amd64-focal"
+    disable_if:
+      condition: property
+      property: target.arch
+      equals_value: AARCH64
+
+  - type: EnvironmentVariable
+    variableName: COIN_SKIP_DEBIAN
+    variableValue: "MISSING_DEBIAN_INST"
+    enable_if:
+      condition: or
+      conditions:
+        - condition: runtime
+          env_var: TESTED_MODULE_COIN
+          equals_value: "qtactiveqt"
+        - condition: runtime
+          env_var: TESTED_MODULE_COIN
+          equals_value: "qtqa"
+        - condition: runtime
+          env_var: TESTED_MODULE_COIN
+          equals_value: "qtdoc"
+        - condition: runtime
+          env_var: TESTED_MODULE_COIN
+          equals_value: "qt5"
+  # Set version info to environment
+  - type: ParseEnvironmentVariableFromFile
+    regex: "QT_REPO_MODULE_VERSION \"(?P<QT_REPO_MODULE_VERSION>.*)\""
+    filename: "{{.SourceDir}}/.cmake.conf"
+    maxTimeInSeconds: 300
+    maxTimeBetweenOutput: 300
+    userMessageOnFailure: "Failed to parse version information from .cmake.conf"
+    disable_if:
+      condition: runtime
+      env_var: TESTED_MODULE_COIN
+      equals_value: "qt5"
+  - type: ParseEnvironmentVariableFromFile
+    regex: "QT_REPO_MODULE_PRERELEASE_VERSION_SEGMENT \"(?P<QT_REPO_MODULE_PRERELEASE_VERSION_SEGMENT>.*)\""
+    filename: "{{.SourceDir}}/.cmake.conf"
+    maxTimeInSeconds: 300
+    maxTimeBetweenOutput: 300
+    userMessageOnFailure: "Failed to parse status information from .cmake.conf"
+    disable_if:
+      condition: runtime
+      env_var: TESTED_MODULE_COIN
+      equals_value: "qt5"
+
diff --git a/coin/module_config.yaml b/coin/module_config.yaml
index 619122a2..4c845fd9 100644
--- a/coin/module_config.yaml
+++ b/coin/module_config.yaml
@@ -4,9 +4,17 @@ accept_configuration:
   property: features
   not_contains_value: Disable
 
+downstream_check:
+  mode: build
+  modules:
+    ../qtdeclarative:
+      ref: dev
+  configurations:
+    - rhel-8.4
+
 machine_type:
   Build:
-    cores: 4
+    cores: 8
   Test:
     cores: 4
 
diff --git a/config.tests/arch/arch.cpp b/config.tests/arch/arch.cpp
index dfef8784..ffb6c787 100644
--- a/config.tests/arch/arch.cpp
+++ b/config.tests/arch/arch.cpp
@@ -141,7 +141,7 @@ const char msg2[] = "==Qt=magic=Qt== Sub-architecture:"
 // Leading-Zero bit count, Intel Core 4th Generation ("Haswell")
 " lzcnt"
 #endif
-#ifdef __MMX__
+#if defined(__MMX__) && defined(__i386__)
 // Multimedia Extensions, Pentium MMX, AMD K6-2
 " mmx"
 #endif
@@ -198,11 +198,11 @@ const char msg2[] = "==Qt=magic=Qt== Sub-architecture:"
 // Shadow stack, Intel processor TBA
 " shstk"
 #endif
-#if defined(__SSE__) || (defined(_M_IX86_FP) && _M_IX86_FP >= 1) || defined(_M_X64)
+#if (defined(__SSE__) && defined(__i386__)) || (defined(_M_IX86_FP) && _M_IX86_FP >= 1 && defined(_M_IX86))
 // Streaming SIMD Extensions, Intel Pentium III, AMD Athlon
 " sse"
 #endif
-#if defined(__SSE2__) || (defined(_M_IX86_FP) && _M_IX86_FP >= 2) || defined(_M_X64)
+#if (defined(__SSE2__) && defined(__i386__)) || (defined(_M_IX86_FP) && _M_IX86_FP >= 2 && defined(_M_IX86))
 // SSE2, Intel Pentium-M, Intel Pentium 4, AMD Opteron and Athlon 64
 " sse2"
 #endif
diff --git a/config.tests/separate_debug_info/CMakeLists.txt b/config.tests/separate_debug_info/CMakeLists.txt
index b325bf0c..1b38d23e 100644
--- a/config.tests/separate_debug_info/CMakeLists.txt
+++ b/config.tests/separate_debug_info/CMakeLists.txt
@@ -1,7 +1,6 @@
 # Copyright (C) 2022 The Qt Company Ltd.
 # SPDX-License-Identifier: BSD-3-Clause
 
-# special case skip regeneration
 cmake_minimum_required(VERSION 3.16)
 project(objcopytest LANGUAGES CXX)
 add_executable(objcopytest main.cpp)
diff --git a/config_help.txt b/config_help.txt
index 3c78115e..6436f3a5 100644
--- a/config_help.txt
+++ b/config_help.txt
@@ -64,10 +64,13 @@ Build options:
   -cmake-file-api ...... Let CMake store build metadata for loading the build
                          into an IDE. [no; yes if -developer-build]
   -no-guess-compiler ... Do not guess the compiler from the target mkspec.
-  -release ............. Build Qt with debugging turned off [yes]
-  -debug ............... Build Qt with debugging turned on [no]
-  -debug-and-release ... Build two versions of Qt, with and without
-                         debugging turned on [yes] (Apple and Windows only)
+  -release ............. Build Qt with optimizations and without debug
+                         symbols [yes]
+                         Note that -developer-build implies -debug unless
+                         -release is also explicitly specified
+  -debug ............... Build Qt without optimizations and with debug symbols
+                         [no]
+  -debug-and-release ... Build two versions of Qt in one build tree [no]
   -optimize-debug ...... Enable debug-friendly optimizations in debug builds
                          [auto] (Not supported with MSVC or Clang toolchains)
   -optimize-size ....... Optimize release builds for size instead of speed [no]
@@ -80,7 +83,8 @@ Build options:
                          sections. [auto for static builds, otherwise no]
   -force-asserts ....... Enable Q_ASSERT even in release builds [no]
   -developer-build ..... Compile and link Qt for developing Qt itself
-                         (exports for auto-tests, extra checks, etc.) [no]
+                         (exports for auto-tests, extra checks, implies
+                         -no-prefix, etc.) [no]
 
   -shared .............. Build shared Qt libraries [yes] (no for UIKit)
   -static .............. Build static Qt libraries [no] (yes for UIKit)
@@ -157,10 +161,10 @@ Build options:
 
 Build environment:
 
-  -sysroot <dir> ....... Set <dir> as the target sysroot
-
   -pkg-config .......... Use pkg-config [auto] (Unix only)
 
+  -vcpkg ............... Use vcpkg [yes]
+
   -D <string> .......... Pass additional preprocessor define
   -I <string> .......... Pass additional include path
   -L <string> .......... Pass additional library path
@@ -198,6 +202,9 @@ Component selection:
                          [default: libs and examples, also tools if not
                          cross-building, also tests if -developer-build]
   -nomake <part> ....... Exclude <part> from the list of parts to be built.
+  -install-examples-sources Installs examples source code into the Qt prefix
+                         Only possible when -make examples is also passed
+                         [no]
   -gui ................. Build the Qt GUI module and dependencies [yes]
   -widgets ............. Build the Qt Widgets module and dependencies [yes]
   -no-dbus ............. Do not build the Qt D-Bus module
@@ -289,6 +296,6 @@ Gui, printing, widget options:
 Database options:
 
   -sql-<driver> ........ Enable SQL <driver> plugin. Supported drivers:
-                         db2 ibase mysql oci odbc psql sqlite
+                         db2 ibase mysql oci odbc psql sqlite mimer
                          [all auto]
   -sqlite .............. Select used sqlite [system/qt]
diff --git a/configure.cmake b/configure.cmake
index be1a4f3b..43de2aa0 100644
--- a/configure.cmake
+++ b/configure.cmake
@@ -109,7 +109,6 @@ SSL_free(SSL_new(0));
 }
 ")
 
-# special case end
 qt_find_package(WrapZSTD 1.3 PROVIDED_TARGETS WrapZSTD::WrapZSTD MODULE_NAME global QMAKE_LIB zstd)
 qt_find_package(WrapDBus1 1.2 PROVIDED_TARGETS dbus-1 MODULE_NAME global QMAKE_LIB dbus)
 qt_find_package(Libudev PROVIDED_TARGETS PkgConfig::Libudev MODULE_NAME global QMAKE_LIB libudev)
@@ -208,51 +207,6 @@ endif()
 # machineTuple
 qt_config_compile_test_machine_tuple("machine tuple")
 
-# cxx14
-qt_config_compile_test(cxx14
-    LABEL "C++14 support"
-    CODE
-"#if __cplusplus > 201103L
-// Compiler claims to support C++14, trust it
-#else
-#  error __cplusplus must be > 201103L (the value of C++11)
-#endif
-
-int main(void)
-{
-    /* BEGIN TEST: */
-    /* END TEST: */
-    return 0;
-}
-"
-    CXX_STANDARD 14
-)
-
-# cxx17
-qt_config_compile_test(cxx17
-    LABEL "C++17 support"
-    CODE
-"#if __cplusplus > 201402L
-// Compiler claims to support C++17, trust it
-#else
-#  error __cplusplus must be > 201402L (the value for C++14)
-#endif
-#include <map>  // https://bugs.llvm.org//show_bug.cgi?id=33117
-#include <variant>
-
-int main(void)
-{
-    /* BEGIN TEST: */
-std::variant<int> v(42);
-int i = std::get<int>(v);
-std::visit([](const auto &) { return 1; }, v);
-    /* END TEST: */
-    return 0;
-}
-"
-    CXX_STANDARD 17
-)
-
 # cxx20
 qt_config_compile_test(cxx20
     LABEL "C++20 support"
@@ -485,7 +439,6 @@ qt_feature("android-style-assets" PRIVATE
 )
 qt_feature("shared" PUBLIC
     LABEL "Building shared libraries"
-    AUTODETECT NOT UIKIT
     CONDITION BUILD_SHARED_LIBS
 )
 qt_feature_definition("shared" "QT_STATIC" NEGATE PREREQUISITE "!defined(QT_SHARED) && !defined(QT_STATIC)")
@@ -517,7 +470,6 @@ qt_feature("optimize_size"
     CONDITION NOT QT_FEATURE_debug OR QT_FEATURE_debug_and_release
 )
 qt_feature_config("optimize_size" QMAKE_PRIVATE_CONFIG)
-# special case begin
 qt_feature("optimize_full"
     LABEL "Fully optimize release builds (-O3)"
     AUTODETECT OFF
@@ -526,10 +478,10 @@ qt_feature_config("optimize_full" QMAKE_PRIVATE_CONFIG)
 qt_feature("msvc_obj_debug_info"
     LABEL "Embed debug info in object files (MSVC)"
     CONDITION MSVC
+    ENABLE QT_USE_CCACHE
     AUTODETECT OFF
 )
 qt_feature_config("msvc_obj_debug_info" QMAKE_PRIVATE_CONFIG)
-# special case end
 qt_feature("pkg-config" PUBLIC
     LABEL "Using pkg-config"
     AUTODETECT NOT APPLE AND NOT WIN32 AND NOT ANDROID
@@ -667,29 +619,10 @@ qt_feature_config("plugin-manifests" QMAKE_PUBLIC_CONFIG
     NEGATE
     NAME "no_plugin_manifest"
 )
-qt_feature("c++11" PUBLIC
-    LABEL "C++11"
-)
-qt_feature_config("c++11" QMAKE_PUBLIC_QT_CONFIG)
-qt_feature("c++14" PUBLIC
-    LABEL "C++14"
-    CONDITION QT_FEATURE_cxx11 AND TEST_cxx14
-)
-qt_feature_config("c++14" QMAKE_PUBLIC_QT_CONFIG)
-qt_feature("c++17" PUBLIC
-    LABEL "C++17"
-    CONDITION QT_FEATURE_cxx14 AND TEST_cxx17
-)
-qt_feature_config("c++17" QMAKE_PUBLIC_QT_CONFIG)
-qt_feature("c++1z" PUBLIC
-    LABEL "C++17"
-    CONDITION QT_FEATURE_cxx17
-)
-qt_feature_config("c++1z" QMAKE_PUBLIC_QT_CONFIG)
 qt_feature("c++20" PUBLIC
     LABEL "C++20"
     AUTODETECT OFF
-    CONDITION QT_FEATURE_cxx17 AND TEST_cxx20
+    CONDITION TEST_cxx20
 )
 qt_feature_config("c++20" QMAKE_PUBLIC_QT_CONFIG)
 qt_feature("c++2a" PUBLIC
@@ -707,17 +640,6 @@ qt_feature("c++2b" PUBLIC
     AUTODETECT FALSE
     CONDITION QT_FEATURE_cxx20 AND (CMAKE_VERSION VERSION_GREATER_EQUAL "3.20") AND TEST_cxx2b
 )
-qt_feature("c89"
-    LABEL "C89"
-)
-qt_feature("c99" PUBLIC
-    LABEL "C99"
-    CONDITION c_std_99 IN_LIST CMAKE_C_COMPILE_FEATURES
-)
-qt_feature("c11" PUBLIC
-    LABEL "C11"
-    CONDITION QT_FEATURE_c99 AND c_std_11 IN_LIST CMAKE_C_COMPILE_FEATURES
-)
 qt_feature("precompile_header"
     LABEL "Using precompiled headers"
     CONDITION BUILD_WITH_PCH AND TEST_precompile_header
@@ -920,7 +842,9 @@ qt_feature_definition("mips_dspr2" "QT_COMPILER_SUPPORTS_MIPS_DSPR2" VALUE "1")
 qt_feature_config("mips_dspr2" QMAKE_PRIVATE_CONFIG)
 qt_feature("neon" PRIVATE
     LABEL "NEON"
-    CONDITION ( ( ( TEST_architecture_arch STREQUAL arm ) OR ( TEST_architecture_arch STREQUAL arm64 ) ) AND TEST_arch_${TEST_architecture_arch}_subarch_neon ) OR QT_FORCE_FEATURE_neon  # special case
+    CONDITION ( ( ( TEST_architecture_arch STREQUAL arm ) OR
+        ( TEST_architecture_arch STREQUAL arm64 ) ) AND
+        TEST_arch_${TEST_architecture_arch}_subarch_neon ) OR QT_FORCE_FEATURE_neon
 )
 qt_feature_definition("neon" "QT_COMPILER_SUPPORTS_NEON" VALUE "1")
 qt_feature_config("neon" QMAKE_PRIVATE_CONFIG)
@@ -986,7 +910,6 @@ qt_feature("stdlib-libcpp" PRIVATE
     AUTODETECT OFF
     CONDITION LINUX AND NOT ANDROID
 )
-# special case begin
 # Check whether CMake was built with zstd support.
 # See https://gitlab.kitware.com/cmake/cmake/-/issues/21552
 if(NOT DEFINED CACHE{QT_CMAKE_ZSTD_SUPPORT})
@@ -1003,7 +926,6 @@ if(NOT DEFINED CACHE{QT_CMAKE_ZSTD_SUPPORT})
         unset(qt_check_zstd_exit_code)
     endif()
 endif()
-# special case end
 qt_feature("thread" PUBLIC
     SECTION "Kernel"
     LABEL "Thread support"
@@ -1143,22 +1065,10 @@ qt_configure_add_summary_entry(
     ARGS "optimize_size"
     CONDITION NOT QT_FEATURE_debug OR QT_FEATURE_debug_and_release
 )
-# special case begin
 qt_configure_add_summary_entry(
     ARGS "optimize_full"
 )
-# special case end
 qt_configure_add_summary_entry(ARGS "shared")
-qt_configure_add_summary_entry(
-    TYPE "firstAvailableFeature"
-    ARGS "c11 c99 c89"
-    MESSAGE "Using C standard"
-)
-qt_configure_add_summary_entry(
-    TYPE "firstAvailableFeature"
-    ARGS "c++2b c++20 c++17 c++14 c++11"
-    MESSAGE "Using C++ standard"
-)
 qt_configure_add_summary_entry(
     ARGS "ccache"
     CONDITION UNIX
@@ -1232,6 +1142,13 @@ qt_configure_add_summary_entry(ARGS "sanitize_fuzzer_no_link")
 qt_configure_add_summary_entry(ARGS "sanitize_undefined")
 qt_configure_end_summary_section() # end of "Sanitizers" section
 qt_configure_add_summary_build_parts("Build parts")
+if(QT_INSTALL_EXAMPLES_SOURCES)
+    set(_examples_sources_entry_message "yes")
+else()
+    set(_examples_sources_entry_message "no")
+endif()
+qt_configure_add_summary_entry(ARGS "Install examples sources" TYPE "message"
+    MESSAGE "${_examples_sources_entry_message}")
 qt_configure_add_summary_entry(
     ARGS "appstore-compliant"
     CONDITION APPLE OR ANDROID OR WIN32
@@ -1251,6 +1168,14 @@ qt_configure_add_summary_entry(ARGS "xml")
 qt_configure_end_summary_section() # end of "Qt modules and options" section
 qt_configure_add_summary_section(NAME "Support enabled for")
 qt_configure_add_summary_entry(ARGS "pkg-config")
+
+if(QT_USE_VCPKG AND (DEFINED ENV{VCPKG_ROOT} OR VCPKG_TARGET_TRIPLET))
+    set(_vcpkg_entry_message "yes")
+else()
+    set(_vcpkg_entry_message "no")
+endif()
+qt_configure_add_summary_entry(ARGS "Using vcpkg" TYPE "message" MESSAGE "${_vcpkg_entry_message}")
+
 qt_configure_add_summary_entry(ARGS "libudev")
 qt_configure_add_summary_entry(ARGS "openssl")
 qt_configure_add_summary_entry(ARGS "openssl-linked")
@@ -1265,13 +1190,6 @@ qt_configure_add_report_entry(
     MESSAGE "Using static linking will disable the use of dynamically loaded plugins. Make sure to import all needed static plugins, or compile needed modules into the library."
     CONDITION NOT QT_FEATURE_shared
 )
-# special case begin
-# qt_configure_add_report_entry(
-#     TYPE ERROR
-#     MESSAGE "Debug build without Release build is not currently supported on ios see QTBUG-71990. Use -debug-and-release."
-#     CONDITION IOS AND QT_FEATURE_debug AND NOT QT_FEATURE_debug_and_release
-# )
-# special case end
 qt_configure_add_report_entry(
     TYPE WARNING
     MESSAGE "-debug-and-release is only supported on Darwin and Windows platforms.  Qt can be built in release mode with separate debug information, so -debug-and-release is no longer necessary."
@@ -1301,6 +1219,16 @@ if (TEST_architecture_arch STREQUAL x86_64 OR TEST_architecture_arch STREQUAL i3
             MESSAGE [=[
 All x86 intrinsics and SIMD support were disabled. If this was in error, check
 the result of the build in config.tests/x86intrin and report at https://bugreports.qt.io.
+]=]
+        )
+    elseif (MSVC AND CLANG)
+        # Warn only
+        qt_configure_add_report_entry(
+            TYPE WARNING
+            CONDITION (NOT QT_FEATURE_x86intrin)
+            MESSAGE [=[
+x86 intrinsics support is disabled for clang-cl build. This might be necessary due to
+https://github.com/llvm/llvm-project/issues/53520
 ]=]
         )
     else()
@@ -1317,7 +1245,6 @@ ${TEST_x86intrin_OUTPUT}
         )
     endif()
 endif()
-# special case begin
 qt_configure_add_report_entry(
     TYPE ERROR
     MESSAGE "Setting a library infix is not supported for framework builds."
@@ -1336,7 +1263,6 @@ qt_configure_add_report_entry(
 if(WASM)
     qt_extra_definition("QT_EMCC_VERSION" "\"${EMCC_VERSION}\"" PUBLIC)
 endif()
-# special case end
 qt_extra_definition("QT_VERSION_STR" "\"${PROJECT_VERSION}\"" PUBLIC)
 qt_extra_definition("QT_VERSION_MAJOR" ${PROJECT_VERSION_MAJOR} PUBLIC)
 qt_extra_definition("QT_VERSION_MINOR" ${PROJECT_VERSION_MINOR} PUBLIC)
diff --git a/doc/CMakeLists.txt b/doc/CMakeLists.txt
index f27c5d4e..bb7dd428 100644
--- a/doc/CMakeLists.txt
+++ b/doc/CMakeLists.txt
@@ -1,7 +1,6 @@
 # Copyright (C) 2022 The Qt Company Ltd.
 # SPDX-License-Identifier: BSD-3-Clause
 
-# special case skip regeneration
 #
 # Copy/Install doc configuration files to the build/install directory
 #
diff --git a/doc/global/macros.qdocconf b/doc/global/macros.qdocconf
index 5a7b826f..561cebbc 100644
--- a/doc/global/macros.qdocconf
+++ b/doc/global/macros.qdocconf
@@ -125,6 +125,7 @@ macro.cmakepropertywebassemblyonly = "\\note This property is used only if targe
 macro.cmakepropertyiosonly = "\\note This property is used only if targeting iOS."
 macro.cmakevariableiosonly = "\\note This variable is used only if targeting iOS."
 
+macro.qtpolicydeprecatedbehavior = "\\note The \\c{OLD} behavior of a policy is deprecated, and may be removed in the future."
 #Appends the tech preview link to the brief sentence and adds to tech_preview
 #group.
 #Must be placed directly under a \brief command
diff --git a/doc/global/manifest-meta.qdocconf b/doc/global/manifest-meta.qdocconf
index 6c7ffd86..b757ae9a 100644
--- a/doc/global/manifest-meta.qdocconf
+++ b/doc/global/manifest-meta.qdocconf
@@ -35,7 +35,7 @@ manifestmeta.highlighted.attributes =   isHighlighted:true
 manifestmeta.android.names          =   "Qt3D/Qt 3D: Basic Shapes C++ Example" \
                                         "Qt3D/Qt 3D: Planets QML Example" \
                                         "Qt3D/Qt 3D: Simple Custom Material QML Example" \
-                                        "QtAndroidExtras/Qt Notifier" \
+                                        "QtCore/Qt Android Notifier" \
                                         "QtBluetooth/Bluetooth Low Energy Scanner Example" \
                                         "QtBluetooth/Bluetooth Scanner Example" \
                                         "QtBluetooth/QML Bluetooth Scanner Example" \
@@ -51,15 +51,12 @@ manifestmeta.android.names          =   "Qt3D/Qt 3D: Basic Shapes C++ Example" \
                                         "QtLocation/Places Map (QML)" \
                                         "QtLocation/Plane Spotter (QML)" \
                                         "QtMultimedia/AudioEngine Example" \
-                                        "QtMultimedia/Camera Example" \
                                         "QtMultimedia/QML Camera Example" \
                                         "QtMultimedia/QML Video Example" \
                                         "QtMultimedia/QML Video Shader Effects Example" \
                                         "QtNFC/Annotated URL Example" \
                                         "QtNFC/QML Poster Example" \
-                                        "QtOpenGL/2D Painting Example" \
                                         "QtOpenGL/Hello GLES3 Example" \
-                                        "QtOpenGL/Textures Example" \
                                         "QtPositioning/SatelliteInfo (C++/QML)" \
                                         "QtPositioning/Weather Info (C++/QML)" \
                                         "QtPurchasing/Qt Purchasing Examples - QtHangman" \
@@ -94,8 +91,6 @@ manifestmeta.android.names          =   "Qt3D/Qt 3D: Basic Shapes C++ Example" \
                                         "QtQuickControls/Qt Quick Controls - Flat Style" \
                                         "QtQuickControls/Qt Quick Controls - Gallery" \
                                         "QtQuickControls/Qt Quick Controls - Imagine Style Example: Automotive" \
-                                        "QtQuickControls/Qt Quick Controls - Side Panel" \
-                                        "QtQuickControls/Qt Quick Controls - Swipe to Remove" \
                                         "QtQuickControls/Qt Quick Controls - Text Editor" \
                                         "QtQuickControls/Qt Quick Controls - Wearable Demo" \
                                         "QtQuickDialogs/*" \
@@ -107,47 +102,7 @@ manifestmeta.android.names          =   "Qt3D/Qt 3D: Basic Shapes C++ Example" \
                                         "QtSQL/Master Detail Example" \
                                         "QtSVG/Text Object Example" \
                                         "QtUiTools/Text Finder Example" \
-                                        "QtWebView/Qt WebView Examples - Minibrowser" \
-                                        "QtWidgets/Address Book Example" \
-                                        "QtWidgets/Affine Transformations" \
-                                        "QtWidgets/Analog Clock Example" \
-                                        "QtWidgets/Animated Tiles Example" \
-                                        "QtWidgets/Application Chooser Example" \
-                                        "QtWidgets/Basic Layouts Example" \
-                                        "QtWidgets/Border Layout Example" \
-                                        "QtWidgets/Code Editor Example" \
-                                        "QtWidgets/Colliding Mice Example" \
-                                        "QtWidgets/Concentric Circles Example" \
-                                        "QtWidgets/Digital Clock Example" \
-                                        "QtWidgets/Dynamic Layouts Example" \
-                                        "QtWidgets/Easing Curves Example" \
-                                        "QtWidgets/Editable Tree Model Example" \
-                                        "QtWidgets/Elided Label Example" \
-                                        "QtWidgets/Fade Message Effect Example" \
-                                        "QtWidgets/Flow Layout Example" \
-                                        "QtWidgets/Font Sampler Example" \
-                                        "QtWidgets/Frozen Column Example" \
-                                        "QtWidgets/Gradients" \
-                                        "QtWidgets/Group Box Example" \
-                                        "QtWidgets/Image Composition Example" \
-                                        "QtWidgets/Line Edits Example" \
-                                        "QtWidgets/Mouse Button Tester" \
-                                        "QtWidgets/Move Blocks Example" \
-                                        "QtWidgets/Painter Paths Example" \
-                                        "QtWidgets/Painter Paths Example" \
-                                        "QtWidgets/Path Stroking" \
-                                        "QtWidgets/Pixelator Example" \
-                                        "QtWidgets/Recent Files Example" \
-                                        "QtWidgets/SDI Example" \
-                                        "QtWidgets/Scribble Example" \
-                                        "QtWidgets/Simple Tree Model Example" \
-                                        "QtWidgets/Sliders Example" \
-                                        "QtWidgets/Spreadsheet" \
-                                        "QtWidgets/Touch Dials Example" \
-                                        "QtWidgets/Transformations Example" \
-                                        "QtWidgets/Undo Framework" \
-                                        "QtWidgets/Vector Deformation" \
-                                        "QtWidgets/Wiggly Example"
+                                        "QtWebView/Qt WebView Examples - Minibrowser"
 
 manifestmeta.android.tags              =   android
 
diff --git a/examples/corelib/bindableproperties/CMakeLists.txt b/examples/corelib/bindableproperties/CMakeLists.txt
index c6d9076f..9e23bf9b 100644
--- a/examples/corelib/bindableproperties/CMakeLists.txt
+++ b/examples/corelib/bindableproperties/CMakeLists.txt
@@ -1,2 +1,25 @@
-qt_internal_add_example(bindablesubscription)
-qt_internal_add_example(subscription)
+# Copyright (C) 2022 The Qt Company Ltd.
+# SPDX-License-Identifier: BSD-3-Clause
+
+cmake_minimum_required(VERSION 3.16)
+project(bindableproperties LANGUAGES CXX)
+
+if(NOT DEFINED INSTALL_EXAMPLESDIR)
+    set(INSTALL_EXAMPLESDIR "examples")
+endif()
+
+set(INSTALL_EXAMPLEDIR "${INSTALL_EXAMPLESDIR}/corelib/bindableproperties")
+
+find_package(Qt6 REQUIRED COMPONENTS Core Gui Widgets)
+
+qt_standard_project_setup()
+
+add_subdirectory(shared)
+add_subdirectory(subscription)
+add_subdirectory(bindablesubscription)
+
+install(TARGETS subscription bindablesubscription
+    RUNTIME DESTINATION "${INSTALL_EXAMPLEDIR}"
+    BUNDLE DESTINATION "${INSTALL_EXAMPLEDIR}"
+    LIBRARY DESTINATION "${INSTALL_EXAMPLEDIR}"
+)
diff --git a/examples/corelib/bindableproperties/bindablesubscription/CMakeLists.txt b/examples/corelib/bindableproperties/bindablesubscription/CMakeLists.txt
index c4a2e5fc..d7967e67 100644
--- a/examples/corelib/bindableproperties/bindablesubscription/CMakeLists.txt
+++ b/examples/corelib/bindableproperties/bindablesubscription/CMakeLists.txt
@@ -1,50 +1,15 @@
 # Copyright (C) 2022 The Qt Company Ltd.
 # SPDX-License-Identifier: BSD-3-Clause
 
-cmake_minimum_required(VERSION 3.16)
-project(bindablesubscription LANGUAGES CXX)
-
-if(NOT DEFINED INSTALL_EXAMPLESDIR)
-    set(INSTALL_EXAMPLESDIR "examples")
-endif()
-
-set(INSTALL_EXAMPLEDIR "${INSTALL_EXAMPLESDIR}/corelib/bindableproperties/bindablesubscription")
-
-find_package(Qt6 REQUIRED COMPONENTS Core Gui Widgets)
-
-qt_standard_project_setup()
-
 qt_add_executable(bindablesubscription
-    ../shared/subscriptionwindow.cpp ../shared/subscriptionwindow.h ../shared/subscriptionwindow.ui
     main.cpp
-    bindablesubscription.cpp bindablesubscription.h
-    bindableuser.cpp bindableuser.h
+    bindablesubscription.cpp
+    bindablesubscription.h
+    bindableuser.cpp
+    bindableuser.h
 )
 
 target_link_libraries(bindablesubscription PRIVATE
-    Qt6::Core
-    Qt6::Gui
-    Qt6::Widgets
+    bindableproperties_shared
 )
 
-# Resources:
-set(countries_resource_files
-    "../shared/finland.png"
-    "../shared/germany.png"
-    "../shared/norway.png"
-)
-
-qt_add_resources(bindablesubscription "countries"
-    PREFIX
-        "/"
-    BASE
-        "../shared"
-    FILES
-        ${countries_resource_files}
-)
-
-install(TARGETS bindablesubscription
-    RUNTIME DESTINATION "${INSTALL_EXAMPLEDIR}"
-    BUNDLE DESTINATION "${INSTALL_EXAMPLEDIR}"
-    LIBRARY DESTINATION "${INSTALL_EXAMPLEDIR}"
-)
diff --git a/examples/corelib/bindableproperties/shared/CMakeLists.txt b/examples/corelib/bindableproperties/shared/CMakeLists.txt
new file mode 100644
index 00000000..dee3ecc1
--- /dev/null
+++ b/examples/corelib/bindableproperties/shared/CMakeLists.txt
@@ -0,0 +1,23 @@
+# Copyright (C) 2023 The Qt Company Ltd.
+# SPDX-License-Identifier: BSD-3-Clause
+
+add_library(bindableproperties_shared STATIC
+    subscriptionwindow.cpp
+    subscriptionwindow.h
+    subscriptionwindow.ui
+)
+
+target_link_libraries(bindableproperties_shared PUBLIC
+    Qt6::Core
+    Qt6::Gui
+    Qt6::Widgets
+)
+
+qt_add_resources(bindableproperties_shared "countries"
+    PREFIX
+        "/"
+    FILES
+        "finland.png"
+        "germany.png"
+        "norway.png"
+)
diff --git a/examples/corelib/bindableproperties/subscription/CMakeLists.txt b/examples/corelib/bindableproperties/subscription/CMakeLists.txt
index 0dd027fc..15e41ad7 100644
--- a/examples/corelib/bindableproperties/subscription/CMakeLists.txt
+++ b/examples/corelib/bindableproperties/subscription/CMakeLists.txt
@@ -1,50 +1,12 @@
 # Copyright (C) 2022 The Qt Company Ltd.
 # SPDX-License-Identifier: BSD-3-Clause
 
-cmake_minimum_required(VERSION 3.16)
-project(subscription LANGUAGES CXX)
-
-if(NOT DEFINED INSTALL_EXAMPLESDIR)
-    set(INSTALL_EXAMPLESDIR "examples")
-endif()
-
-set(INSTALL_EXAMPLEDIR "${INSTALL_EXAMPLESDIR}/corelib/bindableproperties/subscription")
-
-find_package(Qt6 REQUIRED COMPONENTS Core Gui Widgets)
-
-qt_standard_project_setup()
-
 qt_add_executable(subscription
-    ../shared/subscriptionwindow.cpp ../shared/subscriptionwindow.h ../shared/subscriptionwindow.ui
     main.cpp
     subscription.cpp subscription.h
     user.cpp user.h
 )
 
 target_link_libraries(subscription PRIVATE
-    Qt6::Core
-    Qt6::Gui
-    Qt6::Widgets
-)
-
-# Resources:
-set(countries_resource_files
-    "../shared/finland.png"
-    "../shared/germany.png"
-    "../shared/norway.png"
-)
-
-qt_add_resources(subscription "countries"
-    PREFIX
-        "/"
-    BASE
-        "../shared"
-    FILES
-        ${countries_resource_files}
-)
-
-install(TARGETS subscription
-    RUNTIME DESTINATION "${INSTALL_EXAMPLEDIR}"
-    BUNDLE DESTINATION "${INSTALL_EXAMPLEDIR}"
-    LIBRARY DESTINATION "${INSTALL_EXAMPLEDIR}"
+    bindableproperties_shared
 )
diff --git a/examples/corelib/platform/androidnotifier/CMakeLists.txt b/examples/corelib/platform/androidnotifier/CMakeLists.txt
index e05afc29..e5271edd 100644
--- a/examples/corelib/platform/androidnotifier/CMakeLists.txt
+++ b/examples/corelib/platform/androidnotifier/CMakeLists.txt
@@ -23,6 +23,8 @@ qt_add_executable(androidnotifier
     main.cpp
     notificationclient.cpp
     notificationclient.h
+    android/src/org/qtproject/example/androidnotifier/NotificationClient.java
+    android/AndroidManifest.xml
 )
 
 target_link_libraries(androidnotifier PRIVATE
diff --git a/examples/corelib/platform/androidnotifier/doc/src/androidnotifier-example.qdoc b/examples/corelib/platform/androidnotifier/doc/src/androidnotifier-example.qdoc
index 37e81485..2d579c95 100644
--- a/examples/corelib/platform/androidnotifier/doc/src/androidnotifier-example.qdoc
+++ b/examples/corelib/platform/androidnotifier/doc/src/androidnotifier-example.qdoc
@@ -6,6 +6,7 @@
     \example platform/androidnotifier
     \examplecategory {Mobile}
     \brief Demonstrates calling Java code from Qt in an Android application.
+    \ingroup androidplatform
 
     \image androidnotifier.png
 
@@ -48,7 +49,7 @@
 
     The call to the Java meethod use \l QJniObject which relies on the Java Native
     Interface (JNI) APIs to communicate with Java. Also, in the previous snippet,
-    we are passing the app's context object which the the static Java code can use
+    we are passing the app's context object, which the static Java code can use
     to tap into the app's specific properties and APIs.
 
     To make sure our smiley buttons do what they are supposed to, we add the
diff --git a/examples/corelib/serialization/cbordump/cbortag.py b/examples/corelib/serialization/cbordump/cbortag.py
new file mode 100644
index 00000000..26a0f969
--- /dev/null
+++ b/examples/corelib/serialization/cbordump/cbortag.py
@@ -0,0 +1,188 @@
+#!/bin/env python3
+# Copyright (C) 2023 The Qt Company Ltd.
+# SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
+"""Digest cbor-tags.xml file into code for insertion into main.cpp
+
+See main.cpp's comment on how to regenerate its GENERATED CODE.
+See ./cbortag.py --help for further details on how to invoke.
+You can import this is a module without invoking the script.
+"""
+
+def firstChild(parent, tag):
+    """Return parent's first child element with the given tag."""
+    return next(node for node in parent.childNodes
+                if node.nodeType == parent.ELEMENT_NODE and node.nodeName == tag)
+
+def nodeAttrIs(node, attr, seek):
+    """Checks whether the node has a given value for an attribute
+
+    Takes the node to check, the name of the attribute and the value
+    to check against.  Returns true if the node does have that value
+    for the named attribute."""
+    if node.nodeType != node.ELEMENT_NODE:
+        return False
+    if node.attributes is None or attr not in node.attributes:
+        return False
+    return node.attributes[attr].value == seek
+
+def getRfcValue(node):
+    """Extract RFC reference from an <xref type="rfc" ...> element
+
+    Some of these have a reference including section details as the
+    body of the element, otherwise the data attribute should identify
+    the RFC. If neither is found, an empty string is returned."""
+    if node.childNodes:
+        return node.childNodes[0].nodeValue # Maybe accumulate several children ?
+    if node.attributes is None or 'data' not in node.attributes:
+        return ''
+    return node.attributes['data'].value
+
+def readRegistry(filename):
+    """Handles the XML parsing and returns the relevant parts.
+
+    Single argument is the path to the cbor-tags.xml file; returns a
+    twople of the title element's text and an interator over the
+    record nodes.  Checks some things are as expected while doing so."""
+    from xml.dom.minidom import parse
+    doc = parse(filename).documentElement
+    assert nodeAttrIs(doc, 'id', 'cbor-tags')
+    title = firstChild(doc, 'title').childNodes[0].nodeValue
+    registry = firstChild(doc, 'registry')
+    assert nodeAttrIs(registry, 'id', 'tags')
+    records = (node for node in registry.childNodes if node.nodeName == 'record')
+    return title, records
+
+def digest(record):
+    """Digest a single record from cbor-tags.xml
+
+    If the record is not of interest, returns the twople (None, None).
+    For records of interest, returns (n, t) where n is the numeric tag
+    code of the record and t is a text describing it. If the record,
+    or its semantics field, has an xref child with type="rfc", the RFC
+    mentioned there is included with the text of the semantics; such a
+    record is of interest, provided it has a semantics field and no
+    dash in its value.  Records with a value field containing a dash
+    (indicating a range) are not of interest. Records with a value of
+    256 or above are only of interest if they include an RFC."""
+    data = {}
+    for kid in record.childNodes:
+        if kid.nodeName == 'xref':
+            if not nodeAttrIs(kid, 'type', 'rfc'):
+                continue
+            rfc = getRfcValue(kid)
+            if rfc:
+                # Potentially stomping one taken from semantics
+                data['rfc'] = rfc
+        elif kid.nodeName == 'semantics':
+            text = rfc = ''
+            for part in kid.childNodes:
+                if part.nodeType == kid.TEXT_NODE:
+                    text += part.nodeValue
+                elif part.nodeType == kid.ELEMENT_NODE:
+                    if part.nodeName != 'xref' or not nodeAttrIs(part, 'type', 'rfc'):
+                        continue # potentially append content to text
+                    assert not rfc, ('Duplicate RFC ?', rfc, part)
+                    rfc = getRfcValue(part)
+            if rfc:
+                if text.endswith('()'):
+                    text = text[:-2].rstrip()
+                if 'rfc' not in data:
+                    data['rfc'] = rfc
+            data['semantics'] = ' '.join(text.split())
+        elif kid.nodeName == 'value':
+            data['value'] = kid.childNodes[0].nodeValue
+    text = data.get('semantics')
+    if not text or 'value' not in data or '-' in data['value']:
+        return None, None
+    value = int(data['value'])
+    if 'rfc' in data:
+        rfc = data["rfc"].replace('rfc', 'RFC')
+        text = f'{text} [{rfc}]'
+    elif value >= 256:
+        return None, None
+    return value, text
+
+def entries(records):
+    """Digest each record of interest into a value and text.
+
+    The value and text form the raw material of the tagDescriptions
+    array in main.cpp; see digest for which records are retained."""
+    for record in records:
+        value, text = digest(record)
+        if value is not None:
+            yield value, text
+
+def marginBound(text, prior, left, right):
+    """Split up a string literal for tidy display.
+
+    The first parameter, text, is the content of the string literal;
+    quotes shall be added.  It may be split into several fragments,
+    each quoted, so as to abide by line length constraints.
+
+    The remaining parameters are integers: prior is the text already
+    present on the line before text is to be added; left is the width
+    of the left margin for all subsequent lines; and right is the
+    right margin to stay within, where possible. The returned string
+    is either a space with the whole quoted text following, to fit on
+    the line already started to length prior, or a sequence of quoted
+    strings, each preceded by a newline and indent of width left."""
+    if prior + 3 + len(text) < right: # 1 for space, 2 for quotes
+        return f' "{text}"'
+    width = right - left - 2 # 2 for the quotes
+    words = iter(text.split(' '))
+    lines, current = [''], [next(words)]
+    for word in words:
+        if len(word) + sum(len(w) + 1 for w in current) > width:
+            line = ' '.join(current)
+            lines.append(f'"{line}"')
+            current = ['', word]
+        else:
+            current.append(word)
+    line = ' '.join(current)
+    lines.append(f'"{line}"')
+    return ('\n' + ' ' * left).join(lines)
+
+def main(argv, speak):
+    """Takes care of driving the process.
+
+    Takes the command-line argument list (whose first entry is the
+    name of this script) and standard output (or compatible stream of
+    your choosing) to which to write data. If the --out option is
+    specified in the arguments, the file it names is used in place of
+    this output stream."""
+    from argparse import ArgumentParser, ArgumentDefaultsHelpFormatter
+    parser = ArgumentParser(
+        description='Digest cbor-tags.xml into code to insert in main.cpp',
+        formatter_class=ArgumentDefaultsHelpFormatter)
+    parser.add_argument('path', help='path of the cbor-tags.xml file',
+                        default='cbor-tags.xml')
+    parser.add_argument('--out', help='file to write instead of standard output')
+    args = parser.parse_args(argv[1:])
+    emit = (open(args.out) if args.out else speak).write
+
+    title, records = readRegistry(args.path)
+    emit(f"""\
+struct CborTagDescription
+{{
+    QCborTag tag;
+    const char *description; // with space and parentheses
+}};
+
+// {title}
+static const CborTagDescription tagDescriptions[] = {{
+    // from https://www.iana.org/assignments/cbor-tags/cbor-tags.xhtml
+""")
+
+    for value, text in sorted(entries(records)):
+        prior = f'    {{ QCborTag({value}),'
+        body = marginBound(f' ({text})', len(prior), 6, 96)
+        emit(f"{prior}{body} }},\n")
+
+    emit("""\
+    { QCborTag(-1), nullptr }
+};
+""")
+
+if __name__ == '__main__':
+    import sys
+    sys.exit(main(sys.argv, sys.stdout))
diff --git a/examples/corelib/serialization/cbordump/doc/images/cbordump.png b/examples/corelib/serialization/cbordump/doc/images/cbordump.png
index d951ff9b..d5ff1da0 100644
Binary files a/examples/corelib/serialization/cbordump/doc/images/cbordump.png and b/examples/corelib/serialization/cbordump/doc/images/cbordump.png differ
diff --git a/examples/corelib/serialization/cbordump/main.cpp b/examples/corelib/serialization/cbordump/main.cpp
index 56d4070e..fc97dd5e 100644
--- a/examples/corelib/serialization/cbordump/main.cpp
+++ b/examples/corelib/serialization/cbordump/main.cpp
@@ -19,18 +19,12 @@ using namespace Qt::StringLiterals;
 /*
  * To regenerate:
  *  curl -O https://www.iana.org/assignments/cbor-tags/cbor-tags.xml
- *  xsltproc tag-transform.xslt cbor-tags.xml
+ *  ./cbortag.py cbor-tags.xml
  *
  * The XHTML URL mentioned in the comment below is a human-readable version of
  * the same resource.
  */
 
-/* TODO (if possible): fix XSLT to replace each newline and surrounding space in
-   a semantics entry with a single space, instead of using a raw string to wrap
-   each, propagating the spacing from the XML to the output of cbordump. Also
-   auto-purge dangling spaces from the ends of generated lines.
-*/
-
 // GENERATED CODE
 struct CborTagDescription
 {
@@ -38,180 +32,101 @@ struct CborTagDescription
     const char *description; // with space and parentheses
 };
 
-// CBOR Tags
+// Concise Binary Object Representation (CBOR) Tags
 static const CborTagDescription tagDescriptions[] = {
     // from https://www.iana.org/assignments/cbor-tags/cbor-tags.xhtml
-    { QCborTag(0),
-      R"r( (Standard date/time string; see Section 3.4.1 [RFC8949]))r" },
-    { QCborTag(1),
-      R"r( (Epoch-based date/time; see Section 3.4.2 [RFC8949]))r" },
-    { QCborTag(2),
-      R"r( (Positive bignum; see Section 3.4.3 [RFC8949]))r" },
-    { QCborTag(3),
-      R"r( (Negative bignum; see Section 3.4.3 [RFC8949]))r" },
-    { QCborTag(4),
-      R"r( (Decimal fraction; see Section 3.4.4 [RFC8949]))r" },
-    { QCborTag(5),
-      R"r( (Bigfloat; see Section 3.4.4 [RFC8949]))r" },
-    { QCborTag(16),
-      R"r( (COSE Single Recipient Encrypted Data Object [RFC9052]))r" },
-    { QCborTag(17),
-      R"r( (COSE Mac w/o Recipients Object [RFC9052]))r" },
-    { QCborTag(18),
-      R"r( (COSE Single Signer Data Object [RFC9052]))r" },
-    { QCborTag(19),
-      R"r( (COSE standalone V2 countersignature [RFC9338]))r" },
+    { QCborTag(0), " (Standard date/time string; see Section 3.4.1 [RFC8949])" },
+    { QCborTag(1), " (Epoch-based date/time; see Section 3.4.2 [RFC8949])" },
+    { QCborTag(2), " (Positive bignum; see Section 3.4.3 [RFC8949])" },
+    { QCborTag(3), " (Negative bignum; see Section 3.4.3 [RFC8949])" },
+    { QCborTag(4), " (Decimal fraction; see Section 3.4.4 [RFC8949])" },
+    { QCborTag(5), " (Bigfloat; see Section 3.4.4 [RFC8949])" },
+    { QCborTag(16), " (COSE Single Recipient Encrypted Data Object [RFC9052])" },
+    { QCborTag(17), " (COSE Mac w/o Recipients Object [RFC9052])" },
+    { QCborTag(18), " (COSE Single Signer Data Object [RFC9052])" },
+    { QCborTag(19), " (COSE standalone V2 countersignature [RFC9338])" },
     { QCborTag(21),
-      R"r( (Expected conversion to base64url encoding; see Section 3.4.5.2  [RFC8949]))r" },
-    { QCborTag(22),
-      R"r( (Expected conversion to base64 encoding; see Section 3.4.5.2  [RFC8949]))r" },
-    { QCborTag(23),
-      R"r( (Expected conversion to base16 encoding; see Section 3.4.5.2 [RFC8949]))r" },
-    { QCborTag(24),
-      R"r( (Encoded CBOR data item; see Section 3.4.5.1 [RFC8949]))r" },
-    { QCborTag(25),
-      R"r( (reference the nth previously seen string))r" },
-    { QCborTag(26),
-      R"r( (Serialised Perl object with classname and constructor arguments))r" },
+      " (Expected conversion to base64url encoding; see Section 3.4.5.2 [RFC8949])" },
+    { QCborTag(22), " (Expected conversion to base64 encoding; see Section 3.4.5.2 [RFC8949])" },
+    { QCborTag(23), " (Expected conversion to base16 encoding; see Section 3.4.5.2 [RFC8949])" },
+    { QCborTag(24), " (Encoded CBOR data item; see Section 3.4.5.1 [RFC8949])" },
+    { QCborTag(25), " (reference the nth previously seen string)" },
+    { QCborTag(26), " (Serialised Perl object with classname and constructor arguments)" },
     { QCborTag(27),
-      R"r( (Serialised language-independent object with type name and constructor arguments))r" },
-    { QCborTag(28),
-      R"r( (mark value as (potentially) shared))r" },
-    { QCborTag(29),
-      R"r( (reference nth marked value))r" },
-    { QCborTag(30),
-      R"r( (Rational number))r" },
-    { QCborTag(31),
-      R"r( (Absent value in a CBOR Array))r" },
-    { QCborTag(32),
-      R"r( (URI; see Section 3.4.5.3 [RFC8949]))r" },
-    { QCborTag(33),
-      R"r( (base64url; see Section 3.4.5.3 [RFC8949]))r" },
-    { QCborTag(34),
-      R"r( (base64; see Section 3.4.5.3 [RFC8949]))r" },
-    { QCborTag(35),
-      R"r( (Regular expression; see Section 2.4.4.3 [RFC7049]))r" },
-    { QCborTag(36),
-      R"r( (MIME message; see Section 3.4.5.3 [RFC8949]))r" },
-    { QCborTag(37),
-      R"r( (Binary UUID (RFC4122, Section 4.1.2)))r" },
-    { QCborTag(38),
-      R"r( (Language-tagged string [RFC9290]))r" },
-    { QCborTag(39),
-      R"r( (Identifier))r" },
-    { QCborTag(40),
-      R"r( (Multi-dimensional Array, row-major order [RFC8746]))r" },
-    { QCborTag(41),
-      R"r( (Homogeneous Array [RFC8746]))r" },
-    { QCborTag(42),
-      R"r( (IPLD content identifier))r" },
-    { QCborTag(43),
-      R"r( (YANG bits datatype; see Section 6.7. [RFC9254]))r" },
-    { QCborTag(44),
-      R"r( (YANG enumeration datatype; see Section 6.6. [RFC9254]))r" },
-    { QCborTag(45),
-      R"r( (YANG identityref datatype; see Section 6.10. [RFC9254]))r" },
-    { QCborTag(46),
-      R"r( (YANG instance-identifier datatype; see Section 6.13. [RFC9254]))r" },
-    { QCborTag(47),
-      R"r( (YANG Schema Item iDentifier (sid); see Section 3.2. [RFC9254]))r" },
-    { QCborTag(52),
-      R"r( (IPv4, [prefixlen,IPv4], [IPv4,prefixpart] [RFC9164]))r" },
-    { QCborTag(54),
-      R"r( (IPv6, [prefixlen,IPv6], [IPv6,prefixpart] [RFC9164]))r" },
-    { QCborTag(61),
-      R"r( (CBOR Web Token (CWT) [RFC8392]))r" },
-    { QCborTag(63),
-      R"r( (Encoded CBOR Sequence ))r" },
-    { QCborTag(64),
-      R"r( (uint8 Typed Array [RFC8746]))r" },
-    { QCborTag(65),
-      R"r( (uint16, big endian, Typed Array [RFC8746]))r" },
-    { QCborTag(66),
-      R"r( (uint32, big endian, Typed Array [RFC8746]))r" },
-    { QCborTag(67),
-      R"r( (uint64, big endian, Typed Array [RFC8746]))r" },
-    { QCborTag(68),
-      R"r( (uint8 Typed Array, clamped arithmetic [RFC8746]))r" },
-    { QCborTag(69),
-      R"r( (uint16, little endian, Typed Array [RFC8746]))r" },
-    { QCborTag(70),
-      R"r( (uint32, little endian, Typed Array [RFC8746]))r" },
-    { QCborTag(71),
-      R"r( (uint64, little endian, Typed Array [RFC8746]))r" },
-    { QCborTag(72),
-      R"r( (sint8 Typed Array [RFC8746]))r" },
-    { QCborTag(73),
-      R"r( (sint16, big endian, Typed Array [RFC8746]))r" },
-    { QCborTag(74),
-      R"r( (sint32, big endian, Typed Array [RFC8746]))r" },
-    { QCborTag(75),
-      R"r( (sint64, big endian, Typed Array [RFC8746]))r" },
-    { QCborTag(76),
-      R"r( ((reserved) [RFC8746]))r" },
-    { QCborTag(77),
-      R"r( (sint16, little endian, Typed Array [RFC8746]))r" },
-    { QCborTag(78),
-      R"r( (sint32, little endian, Typed Array [RFC8746]))r" },
-    { QCborTag(79),
-      R"r( (sint64, little endian, Typed Array [RFC8746]))r" },
-    { QCborTag(80),
-      R"r( (IEEE 754 binary16, big endian, Typed Array [RFC8746]))r" },
-    { QCborTag(81),
-      R"r( (IEEE 754 binary32, big endian, Typed Array [RFC8746]))r" },
-    { QCborTag(82),
-      R"r( (IEEE 754 binary64, big endian, Typed Array [RFC8746]))r" },
-    { QCborTag(83),
-      R"r( (IEEE 754 binary128, big endian, Typed Array [RFC8746]))r" },
-    { QCborTag(84),
-      R"r( (IEEE 754 binary16, little endian, Typed Array [RFC8746]))r" },
-    { QCborTag(85),
-      R"r( (IEEE 754 binary32, little endian, Typed Array [RFC8746]))r" },
-    { QCborTag(86),
-      R"r( (IEEE 754 binary64, little endian, Typed Array [RFC8746]))r" },
-    { QCborTag(87),
-      R"r( (IEEE 754 binary128, little endian, Typed Array [RFC8746]))r" },
-    { QCborTag(96),
-      R"r( (COSE Encrypted Data Object [RFC9052]))r" },
-    { QCborTag(97),
-      R"r( (COSE MACed Data Object [RFC9052]))r" },
-    { QCborTag(98),
-      R"r( (COSE Signed Data Object [RFC9052]))r" },
-    { QCborTag(100),
-      R"r( (Number of days since the epoch date 1970-01-01 [RFC8943]))r" },
-    { QCborTag(101),
-      R"r( (alternatives as given by the uint + 128; see Section 9.1))r" },
-    { QCborTag(103),
-      R"r( (Geographic Coordinates))r" },
-    { QCborTag(104),
-      R"r( (Geographic Coordinate Reference System WKT or EPSG number))r" },
-    { QCborTag(110),
-      R"r( (relative object identifier (BER encoding); SDNV  sequence [RFC9090]))r" },
-    { QCborTag(111),
-      R"r( (object identifier (BER encoding) [RFC9090]))r" },
-    { QCborTag(112),
-      R"r( (object identifier (BER encoding), relative to 1.3.6.1.4.1 [RFC9090]))r" },
-    { QCborTag(120),
-      R"r( (Internet of Things Data Point))r" },
+      " (Serialised language-independent object with type name and constructor arguments)" },
+    { QCborTag(28), " (mark value as (potentially) shared)" },
+    { QCborTag(29), " (reference nth marked value)" },
+    { QCborTag(30), " (Rational number)" },
+    { QCborTag(31), " (Absent value in a CBOR Array)" },
+    { QCborTag(32), " (URI; see Section 3.4.5.3 [RFC8949])" },
+    { QCborTag(33), " (base64url; see Section 3.4.5.3 [RFC8949])" },
+    { QCborTag(34), " (base64; see Section 3.4.5.3 [RFC8949])" },
+    { QCborTag(35), " (Regular expression; see Section 2.4.4.3 [RFC7049])" },
+    { QCborTag(36), " (MIME message; see Section 3.4.5.3 [RFC8949])" },
+    { QCborTag(37), " (Binary UUID [RFC4122, Section 4.1.2])" },
+    { QCborTag(38), " (Language-tagged string [RFC9290, Appendix A])" },
+    { QCborTag(39), " (Identifier)" },
+    { QCborTag(40), " (Multi-dimensional Array, row-major order [RFC8746])" },
+    { QCborTag(41), " (Homogeneous Array [RFC8746])" },
+    { QCborTag(42), " (IPLD content identifier)" },
+    { QCborTag(43), " (YANG bits datatype; see Section 6.7. [RFC9254])" },
+    { QCborTag(44), " (YANG enumeration datatype; see Section 6.6. [RFC9254])" },
+    { QCborTag(45), " (YANG identityref datatype; see Section 6.10. [RFC9254])" },
+    { QCborTag(46), " (YANG instance-identifier datatype; see Section 6.13. [RFC9254])" },
+    { QCborTag(47), " (YANG Schema Item iDentifier (sid); see Section 3.2. [RFC9254])" },
+    { QCborTag(52), " (IPv4, [prefixlen,IPv4], [IPv4,prefixpart] [RFC9164])" },
+    { QCborTag(54), " (IPv6, [prefixlen,IPv6], [IPv6,prefixpart] [RFC9164])" },
+    { QCborTag(61), " (CBOR Web Token (CWT) [RFC8392])" },
+    { QCborTag(63), " (Encoded CBOR Sequence [RFC8742])" },
+    { QCborTag(64), " (uint8 Typed Array [RFC8746])" },
+    { QCborTag(65), " (uint16, big endian, Typed Array [RFC8746])" },
+    { QCborTag(66), " (uint32, big endian, Typed Array [RFC8746])" },
+    { QCborTag(67), " (uint64, big endian, Typed Array [RFC8746])" },
+    { QCborTag(68), " (uint8 Typed Array, clamped arithmetic [RFC8746])" },
+    { QCborTag(69), " (uint16, little endian, Typed Array [RFC8746])" },
+    { QCborTag(70), " (uint32, little endian, Typed Array [RFC8746])" },
+    { QCborTag(71), " (uint64, little endian, Typed Array [RFC8746])" },
+    { QCborTag(72), " (sint8 Typed Array [RFC8746])" },
+    { QCborTag(73), " (sint16, big endian, Typed Array [RFC8746])" },
+    { QCborTag(74), " (sint32, big endian, Typed Array [RFC8746])" },
+    { QCborTag(75), " (sint64, big endian, Typed Array [RFC8746])" },
+    { QCborTag(76), " ((reserved) [RFC8746])" },
+    { QCborTag(77), " (sint16, little endian, Typed Array [RFC8746])" },
+    { QCborTag(78), " (sint32, little endian, Typed Array [RFC8746])" },
+    { QCborTag(79), " (sint64, little endian, Typed Array [RFC8746])" },
+    { QCborTag(80), " (IEEE 754 binary16, big endian, Typed Array [RFC8746])" },
+    { QCborTag(81), " (IEEE 754 binary32, big endian, Typed Array [RFC8746])" },
+    { QCborTag(82), " (IEEE 754 binary64, big endian, Typed Array [RFC8746])" },
+    { QCborTag(83), " (IEEE 754 binary128, big endian, Typed Array [RFC8746])" },
+    { QCborTag(84), " (IEEE 754 binary16, little endian, Typed Array [RFC8746])" },
+    { QCborTag(85), " (IEEE 754 binary32, little endian, Typed Array [RFC8746])" },
+    { QCborTag(86), " (IEEE 754 binary64, little endian, Typed Array [RFC8746])" },
+    { QCborTag(87), " (IEEE 754 binary128, little endian, Typed Array [RFC8746])" },
+    { QCborTag(96), " (COSE Encrypted Data Object [RFC9052])" },
+    { QCborTag(97), " (COSE MACed Data Object [RFC9052])" },
+    { QCborTag(98), " (COSE Signed Data Object [RFC9052])" },
+    { QCborTag(100), " (Number of days since the epoch date 1970-01-01 [RFC8943])" },
+    { QCborTag(101), " (alternatives as given by the uint + 128; see Section 9.1)" },
+    { QCborTag(103), " (Geographic Coordinates)" },
+    { QCborTag(104), " (Geographic Coordinate Reference System WKT or EPSG number)" },
+    { QCborTag(110), " (relative object identifier (BER encoding); SDNV sequence [RFC9090])" },
+    { QCborTag(111), " (object identifier (BER encoding) [RFC9090])" },
+    { QCborTag(112), " (object identifier (BER encoding), relative to 1.3.6.1.4.1 [RFC9090])" },
+    { QCborTag(120), " (Internet of Things Data Point)" },
     { QCborTag(260),
-      R"r( (Network Address (IPv4 or IPv6 or MAC Address) (DEPRECATED in favor of 52 and 54
-        for IP addresses) [http://www.employees.oRg/~RaviR/CboR-netwoRk.txt]))r" },
+      " (Network Address (IPv4 or IPv6 or MAC Address) (DEPRECATED in favor of 52 and 54 for IP"
+      " addresses) [RFC9164])" },
     { QCborTag(261),
-      R"r( (Network Address Prefix (IPv4 or IPv6 Address + Mask Length) (DEPRECATED in favor of 52 and 54
-        for IP addresses) [https://github.Com/toRaviR/CBOR-Tag-SpeCs/blob/masteR/netwoRkPReFix.md]))r" },
+      " (Network Address Prefix (IPv4 or IPv6 Address + Mask Length) (DEPRECATED in favor of 52"
+      " and 54 for IP addresses) [RFC9164])" },
     { QCborTag(271),
-      R"r( (DDoS Open Threat Signaling (DOTS) signal channel object,
-        as defined in  [RFC9132]))r" },
-    { QCborTag(1004),
-      R"r( ( full-date string [RFC8943]))r" },
-    { QCborTag(1040),
-      R"r( (Multi-dimensional Array, column-major order [RFC8746]))r" },
-    { QCborTag(55799),
-      R"r( (Self-described CBOR; see Section 3.4.6 [RFC8949]))r" },
-    { QCborTag(55800),
-      R"r( (indicates that the file contains CBOR Sequences [RFC9277]))r" },
+      " (DDoS Open Threat Signaling (DOTS) signal channel object, as defined in [RFC9132])" },
+    { QCborTag(1004), " (full-date string [RFC8943])" },
+    { QCborTag(1040), " (Multi-dimensional Array, column-major order [RFC8746])" },
+    { QCborTag(55799), " (Self-described CBOR; see Section 3.4.6 [RFC8949])" },
+    { QCborTag(55800), " (indicates that the file contains CBOR Sequences [RFC9277])" },
     { QCborTag(55801),
-      R"r( (indicates that the file starts with a CBOR-Labeled Non-CBOR Data label. [RFC9277]))r" },
+      " (indicates that the file starts with a CBOR-Labeled Non-CBOR Data label. [RFC9277])" },
     { QCborTag(-1), nullptr }
 };
 // END GENERATED CODE
diff --git a/examples/corelib/serialization/cbordump/tag-transform.xslt b/examples/corelib/serialization/cbordump/tag-transform.xslt
deleted file mode 100644
index ad0bba98..00000000
--- a/examples/corelib/serialization/cbordump/tag-transform.xslt
+++ /dev/null
@@ -1,27 +0,0 @@
-<?xml version="1.0"?>
-<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform" xmlns:a="http://www.iana.org/assignments" xmlns="http://www.iana.org/assignments" xmlns:_="http://www.iana.org/assignments" xmlns:DEFAULT="http://www.iana.org/assignments" version="1.0">
-<xsl:output omit-xml-declaration="yes" indent="no" method="text"/>
-<xsl:template match="/a:registry[@id='cbor-tags']">struct CborTagDescription
-{
-    QCborTag tag;
-    const char *description;    // with space and parentheses
-};
-
-// <xsl:value-of select="a:registry/a:title"/>
-static const CborTagDescription tagDescriptions[] = {
-    // from https://www.iana.org/assignments/cbor-tags/cbor-tags.xhtml
-<xsl:for-each select="a:registry/a:record">
-    <xsl:sort select="a:value" data-type="number"/>
-        <xsl:if test="a:semantics != ''">
-            <xsl:call-template name="row"/>
-        </xsl:if>
-    </xsl:for-each>    { QCborTag(-1), nullptr }
-};
-</xsl:template>
-<xsl:template name="row">    { QCborTag(<xsl:value-of select="a:value"/>),
-      R"r( (<xsl:value-of select="a:semantics"/> <xsl:call-template name="xref"/>))r" },
-</xsl:template><!-- fn:replace(a:semantics, '\s+', ' ') -->
-<xsl:template name="xref"><xsl:if test="a:xref/@type = 'rfc'"> [<xsl:value-of
-select="translate(a:xref/@data,'rfc','RFC')"/>]</xsl:if>
-</xsl:template>
-</xsl:stylesheet>
diff --git a/examples/corelib/serialization/savegame/doc/src/savegame.qdoc b/examples/corelib/serialization/savegame/doc/src/savegame.qdoc
index 36f02f98..c3fc9157 100644
--- a/examples/corelib/serialization/savegame/doc/src/savegame.qdoc
+++ b/examples/corelib/serialization/savegame/doc/src/savegame.qdoc
@@ -35,8 +35,8 @@
     serializing to another format — for example XML or QDataStream, which require passing
     a document-like object — or when the object identity is important (QObject
     subclasses, for example), other patterns may be more suitable. See the
-    \l{xml/dombookmarks} and \l{xml/streambookmarks} examples for XML, and the
-    implementation of \l QListWidgetItem::read() and \l QListWidgetItem::write()
+    \l{dombookmarks} example for XML, and the implementation of
+    \l QListWidgetItem::read() and \l QListWidgetItem::write()
     for idiomatic QDataStream serialization. The \c{print()} functions in this example
     are good examples of QTextStream serialization, even though they, of course, lack
     the deserialization side.
diff --git a/examples/corelib/threads/semaphores/semaphores.cpp b/examples/corelib/threads/semaphores/semaphores.cpp
index 103f331b..5a495551 100644
--- a/examples/corelib/threads/semaphores/semaphores.cpp
+++ b/examples/corelib/threads/semaphores/semaphores.cpp
@@ -7,9 +7,9 @@
 #include <stdlib.h>
 
 //! [0]
-constexpr int DataSize = 100000;
+const int DataSize = 100000;
 
-constexpr int BufferSize = 8192;
+const int BufferSize = 8192;
 char buffer[BufferSize];
 
 QSemaphore freeBytes(BufferSize);
diff --git a/examples/embedded/digiflip/digiflip.cpp b/examples/embedded/digiflip/digiflip.cpp
index 7497f04e..ab5075a4 100644
--- a/examples/embedded/digiflip/digiflip.cpp
+++ b/examples/embedded/digiflip/digiflip.cpp
@@ -23,7 +23,8 @@ public:
     {
         setAttribute(Qt::WA_OpaquePaintEvent, true);
         setAttribute(Qt::WA_NoSystemBackground, true);
-        connect(&m_animator, SIGNAL(frameChanged(int)), SLOT(update()));
+        connect(&m_animator, &QTimeLine::frameChanged,
+                this, qOverload<>(&Digits::update));
         m_animator.setFrameRange(0, 100);
         m_animator.setDuration(600);
         m_animator.setEasingCurve(QEasingCurve::InOutSine);
@@ -272,9 +273,9 @@ public:
         QAction *slideAction = new QAction("&Slide", this);
         QAction *flipAction = new QAction("&Flip", this);
         QAction *rotateAction = new QAction("&Rotate", this);
-        connect(slideAction, SIGNAL(triggered()), SLOT(chooseSlide()));
-        connect(flipAction, SIGNAL(triggered()), SLOT(chooseFlip()));
-        connect(rotateAction, SIGNAL(triggered()), SLOT(chooseRotate()));
+        connect(slideAction, &QAction::triggered, this, &DigiFlip::chooseSlide);
+        connect(flipAction, &QAction::triggered, this, &DigiFlip::chooseFlip);
+        connect(rotateAction, &QAction::triggered, this, &DigiFlip::chooseRotate);
         addAction(slideAction);
         addAction(flipAction);
         addAction(rotateAction);
diff --git a/examples/embedded/flightinfo/flightinfo.cpp b/examples/embedded/flightinfo/flightinfo.cpp
index 96a3e272..f9d4b6e0 100644
--- a/examples/embedded/flightinfo/flightinfo.cpp
+++ b/examples/embedded/flightinfo/flightinfo.cpp
@@ -71,8 +71,8 @@ public:
 
         ui.searchBar->hide();
         ui.infoBox->hide();
-        connect(ui.searchButton, SIGNAL(clicked()), SLOT(startSearch()));
-        connect(ui.flightEdit, SIGNAL(returnPressed()), SLOT(startSearch()));
+        connect(ui.searchButton, &QPushButton::clicked, this, &FlightInfo::startSearch);
+        connect(ui.flightEdit, &QLineEdit::returnPressed, this, &FlightInfo::startSearch);
 
         setWindowTitle("Flight Info");
 
@@ -83,11 +83,11 @@ public:
         QAction *searchTodayAction = new QAction("Today's Flight", this);
         QAction *searchYesterdayAction = new QAction("Yesterday's Flight", this);
         QAction *randomAction = new QAction("Random Flight", this);
-        connect(searchTodayAction, SIGNAL(triggered()), SLOT(today()));
-        connect(searchYesterdayAction, SIGNAL(triggered()), SLOT(yesterday()));
-        connect(randomAction, SIGNAL(triggered()), SLOT(randomFlight()));
-        connect(&m_manager, SIGNAL(finished(QNetworkReply*)),
-                this, SLOT(handleNetworkData(QNetworkReply*)));
+        connect(searchTodayAction, &QAction::triggered, this, &FlightInfo::today);
+        connect(searchYesterdayAction, &QAction::triggered, this, &FlightInfo::yesterday);
+        connect(randomAction, &QAction::triggered, this, &FlightInfo::randomFlight);
+        connect(&m_manager, &QNetworkAccessManager::finished,
+                this, &FlightInfo::handleNetworkData);
         addAction(searchTodayAction);
         addAction(searchYesterdayAction);
         addAction(randomAction);
diff --git a/examples/embedded/lightmaps/lightmaps.cpp b/examples/embedded/lightmaps/lightmaps.cpp
index 5f62f926..566ba243 100644
--- a/examples/embedded/lightmaps/lightmaps.cpp
+++ b/examples/embedded/lightmaps/lightmaps.cpp
@@ -24,8 +24,8 @@ LightMaps::LightMaps(QWidget *parent)
 {
     m_normalMap = new SlippyMap(this);
     m_largeMap = new SlippyMap(this);
-    connect(m_normalMap, SIGNAL(updated(QRect)), SLOT(updateMap(QRect)));
-    connect(m_largeMap, SIGNAL(updated(QRect)), SLOT(update()));
+    connect(m_normalMap, &SlippyMap::updated, this, &LightMaps::updateMap);
+    connect(m_largeMap, &SlippyMap::updated, this, &LightMaps::updateMap);
 }
 
 void LightMaps::setCenter(qreal lat, qreal lng)
diff --git a/examples/gui/CMakeLists.txt b/examples/gui/CMakeLists.txt
index 8eb3981a..8eda006a 100644
--- a/examples/gui/CMakeLists.txt
+++ b/examples/gui/CMakeLists.txt
@@ -5,3 +5,4 @@ if(NOT TARGET Qt6::Gui)
     return()
 endif()
 qt_internal_add_example(rasterwindow)
+qt_internal_add_example(rhiwindow)
diff --git a/examples/gui/doc/images/rhiwindow_example.jpg b/examples/gui/doc/images/rhiwindow_example.jpg
new file mode 100644
index 00000000..ca1e44ba
Binary files /dev/null and b/examples/gui/doc/images/rhiwindow_example.jpg differ
diff --git a/examples/gui/doc/src/rhiwindow.qdoc b/examples/gui/doc/src/rhiwindow.qdoc
new file mode 100644
index 00000000..1dd5ffb7
--- /dev/null
+++ b/examples/gui/doc/src/rhiwindow.qdoc
@@ -0,0 +1,440 @@
+// Copyright (C) 2023 The Qt Company Ltd.
+// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GFDL-1.3-no-invariants-only
+
+/*!
+    \example rhiwindow
+    \title RHI Window Example
+    \examplecategory {Graphics & Multimedia}
+
+    \brief This example shows how to create a minimal QWindow-based
+    application using QRhi.
+
+    \image rhiwindow_example.jpg
+
+    Qt 6.6 starts offering its accelerated 3D API and shader abstraction layer
+    for application use as well. Applications can now use the same 3D graphics
+    classes Qt itself uses to implement the Qt Quick scenegraph or the Qt Quick
+    3D engine. In earlier Qt versions QRhi and the related classes were all
+    private APIs. From 6.6 on these classes are in a similar category as QPA
+    family of classes: neither fully public nor private, but something
+    in-between, with a more limited compatibility promise compared to public
+    APIs. On the other hand, QRhi and the related classes now come with full
+    documentation similarly to public APIs.
+
+    There are multiple ways to use QRhi, the example here shows the most
+    low-level approach: targeting a QWindow, while not using Qt Quick, Qt Quick
+    3D, or Widgets in any form, and setting up all the rendering and windowing
+    infrastructure in the application.
+
+    In contrast, when writing a QML application with Qt Quick or Qt Quick 3D,
+    and wanting to add QRhi-based rendering to it, such an application is going
+    to rely on the window and rendering infrastructure Qt Quick has already
+    initialized, and it is likely going to query an existing QRhi instance from
+    the QQuickWindow. There dealing with QRhi::create(), platform/API specifics
+    such as \l{QVulkanInstance}{Vulkan instances}, or correctly handling
+    \l{QExposeEvent}{expose} and resize events for the window are all managed
+    by Qt Quick. Whereas in this example, all that is managed and taken care
+    of by the application itself.
+
+    \note For QWidget-based applications in particular, it should be noted that
+    QWidget::createWindowContainer() allows embedding a QWindow (backed by a
+    native window) into the widget-based user interface. Therefore, the \c
+    HelloWindow class from this example is reusable in QWidget-based
+    applications, assuming the necessary initialization from \c main() is in
+    place as well.
+
+    \section1 3D API Support
+
+    The application supports all the current \l{QRhi::Implementation}{QRhi
+    backends}. When no command-line arguments are specified, platform-specific
+    defaults are used: Direct 3D 11 on Windows, OpenGL on Linux, Metal on
+    macOS/iOS.
+
+    Running with \c{--help} shows the available command-line options:
+
+    \list
+    \li -d or --d3d11 for Direct 3D 11
+    \li -D or --d3d12 for Direct 3D 12
+    \li -m or --metal for Metal
+    \li -v or --vulkan for Vulkan
+    \li -g or --opengl for OpenGL or OpenGL ES
+    \li -n or --null for the \l{QRhi::Null}{Null backend}
+    \endlist
+
+    \section1 Build System Notes
+
+    This application relies solely on the Qt GUI module. It does not use Qt
+    Widgets or Qt Quick.
+
+    In order to access the RHI APIs, which are available to all Qt applications
+    but come with a limited compatibility promise, the \c target_link_libraries
+    CMake command lists \c{Qt6::GuiPrivate}. This is what enables the
+    \c{#include <rhi/qrhi.h>} include statement to compile successfully.
+
+    \section1 Features
+
+    The application features:
+
+    \list
+
+    \li A resizable QWindow,
+
+    \li a swapchain and depth-stencil buffer that properly follows the size of
+    the window,
+
+    \li logic to initialize, render, and tear down at the appropriate time
+    based on events such as \l QExposeEvent and \l QPlatformSurfaceEvent,
+
+    \li rendering a fullscreen textured quad, using a texture the contents of
+    which is generated in a QImage via QPainter (using the raster paint engine,
+    i.e. the generating of the image's pixel data is all CPU-based, that data
+    is then uploaded into a GPU texture),
+
+    \li rendering a triangle with blending and depth testing enabled, using a
+    perspective projection, while applying a model transform that changes on
+    every frame,
+
+    \li an efficient, cross-platform render loop using
+    \l{QWindow::requestUpdate()}{requestUpdate()}.
+
+    \endlist
+
+    \section1 Shaders
+
+    The application uses two sets of vertex and fragment shader pairs:
+
+    \list
+
+    \li one for the fullscreen quad, which uses no vertex inputs and the
+    fragment shader samples a texture (\c quad.vert, \c quad.frag),
+
+    \li and another pair for the triangle, where vertex positions and colors
+    are provided in a vertex buffer and a modelview-projection matrix is
+    provided in a uniform buffer (\c color.vert, \c color.frag).
+
+    \endlist
+
+    The shaders are written as Vulkan-compatible GLSL source code.
+
+    Due to being a Qt GUI module example, this example cannot have a dependency
+    on the \l{Qt Shader Tools} module. This means that CMake helper functions
+    such as \c{qt_add_shaders} are not available for use. Therefore, the
+    example has the pre-processed \c{.qsb} files included in the
+    \c{shaders/prebuilt} folder, and they are simply included within the
+    executable via \c{qt_add_resources}. This approach is not generally
+    recommended for applications, consider rather using \l{Qt Shader Tools
+    Build System Integration}{qt_add_shaders}, which avoids the need to
+    manually generate and manage the \c{.qsb} files.
+
+    To generate the \c{.qsb} files for this example, the command \c{qsb --qt6
+    color.vert -o prebuilt/color.vert.qsb} etc. was used. This leads to
+    compiling to \l{https://www.khronos.org/spir/}{SPIR-V} and than transpiling
+    into GLSL (\c{100 es} and \c 120), HLSL (5.0), and MSL (1.2). All the
+    shader versions are then packed together into a QShader and serialized to
+    disk.
+
+    \section1 API-specific Initialization
+
+    For some of the 3D APIs the main() function has to perform the appropriate
+    API-specific initialiation, e.g. to create a QVulkanInstance when using
+    Vulkan. For OpenGL we have to ensure a depth buffer is available, this is
+    done via QSurfaceFormat. These steps are not in the scope of QRhi since
+    QRhi backends for OpenGL or Vulkan build on the existing Qt facilities such
+    as QOpenGLContext or QVulkanInstance.
+
+    \snippet rhiwindow/main.cpp api-setup
+
+    \note For Vulkan, note how
+    QRhiVulkanInitParams::preferredInstanceExtensions() is taken into account
+    to ensure the appropriate extensions are enabled.
+
+    \c HelloWindow is a subclass of \c RhiWindow, which in turn is a QWindow.
+    \c RhiWindow contains everything needed to manage a resizable window with
+    a\ swapchain (and depth-stencil buffer), and is potentially reusable in
+    other applications as well. \c HelloWindow contains the rendering logic
+    specific to this particular example application.
+
+    In the QWindow subclass constructor the surface type is set based on the
+    selected 3D API.
+
+    \snippet rhiwindow/rhiwindow.cpp rhiwindow-ctor
+
+    Creating and initializing a QRhi object is implemented in
+    RhiWindow::init(). Note that this is invoked only when the window is
+    \c renderable, which is indicated by an \l{QExposeEvent}{expose event}.
+
+    Depending on which 3D API we use, the appropriate InitParams struct needs
+    to be passed to QRhi::create(). With OpenGL for example, a
+    QOffscreenSurface (or some other QSurface) must be created by the
+    application and provided for use to the QRhi. With Vulkan, a successfully
+    initialized QVulkanInstance is required. Others, such as Direct 3D or Metal
+    need no additional information to be able to initialize.
+
+    \snippet rhiwindow/rhiwindow.cpp rhi-init
+
+    Apart from this, everything else, all the rendering code, is fully
+    cross-platform and has no branching or conditions specific to any of the 3D
+    API.
+
+    \section1 Expose Events
+
+    What \c renderable exactly means is platform-specific. For example, on
+    macOS a window that is fully obscured (fully behind some other window) is
+    not renderable, whereas on Windows obscuring has no significance.
+    Fortunately, the application needs no special knowledge about this: Qt's
+    platform plugins abstract the differences behind the expose event. However,
+    the \l{QWindow::exposeEvent()}{exposeEvent()} reimplementation also needs
+    to be aware that an empty output size (e.g. width and height of 0) is also
+    something that should be treated as a non-renderable situation. On Windows
+    for example, this is what is going to happen when minimizing the window.
+    Hence the check based on QRhiSwapChain::surfacePixelSize().
+
+    This implementation of expose event handling attempts to be robust, safe,
+    and portable. Qt Quick itself also implements a very similar logic in its
+    render loops.
+
+    \snippet rhiwindow/rhiwindow.cpp expose
+
+    In RhiWindow::render(), which is invoked in response to the
+    \l{QEvent::UpdateRequest}{UpdateRequest} event generated by
+    \l{QWindow::requestUpdate()}{requestUpdate()}, the following check is in
+    place, to prevent attempting to render when the swapchain initialization
+    failed, or when the window became non-renderable.
+
+    \snippet rhiwindow/rhiwindow.cpp render-precheck
+
+    \section1 Swapchain, Depth-Stencil buffer, and Resizing
+
+    To render to the QWindow, a QRhiSwapChain is needed. In addition, a
+    QRhiRenderBuffer acting as the depth-stencil buffer is created as well
+    since the application demonstrates how depth testing can be enabled in a
+    graphics pipeline. With some legacy 3D APIs managing the depth/stencil
+    buffer for a window is part of the corresponding windowing system interface
+    API (EGL, WGL, GLX, etc., meaning the depth/stencil buffer is implicitly
+    managed together with the \c{window surface}), whereas with modern APIs
+    managing the depth-stencil buffer for a window-based render target is no
+    different from offscreen render targets. QRhi abstracts this, but for best
+    performance it still needs to be indicated that the QRhiRenderBuffer is
+    \l{QRhiRenderBuffer::UsedWithSwapChainOnly}{used with together with a
+    QRhiSwapChain}.
+
+    The QRhiSwapChain is associated with the QWindow and the depth/stencil
+    buffer.
+
+    \snippet rhiwindow/rhiwindow.h swapchain-data
+    \codeline
+    \snippet rhiwindow/rhiwindow.cpp swapchain-init
+
+    When the window size changes, the swapchain needs to be resized as well.
+    This is implemented in resizeSwapChain().
+
+    \snippet rhiwindow/rhiwindow.cpp swapchain-resize
+
+    Unlike other QRhiResource subclasses, QRhiSwapChain features slightly
+    different semantics when it comes to its create-function. As the name,
+    \l{QRhiSwapChain::createOrResize()}{createOrResize()}, suggests, this needs
+    to be called whenever it is known that the output window size may be out of
+    sync with what the swapchain was last initialized. The associated
+    QRhiRenderBuffer for depth-stencil gets its
+    \l{QRhiRenderBuffer::pixelSize()}{size} set automatically, and
+    \l{QRhiRenderBuffer::create()}{create()} is called on it implicitly from the
+    swapchain's createOrResize().
+
+    This is also a convenient place to (re)calculate the projection and view
+    matrices since the perspective projection we set up depends on the output
+    aspect ratio.
+
+    \note To eliminate coordinate system differences, the
+    \l{QRhi::clipSpaceCorrMatrix()}{a backend/API-specific "correction" matrix}
+    is queried from QRhi and baked in to the projection matrix. This is what
+    allows the application to work with OpenGL-style vertex data, assuming a
+    coordinate system with the origin at the bottom-left.
+
+    The resizeSwapChain() function is called from RhiWindow::render() when it
+    is discovered that the currently reported size is not the same anymore as
+    what the swapchain was last initialized with.
+
+    See QRhiSwapChain::currentPixelSize() and QRhiSwapChain::surfacePixelSize()
+    for further details.
+
+    High DPI support is built-in: the sizes, as the naming indicates, are
+    always in pixels, taking the window-specific
+    \l{QWindow::devicePixelRatio()}{scale factor} into account. On the QRhi
+    (and 3D API) level there is no concept of high DPI scaling, everything is
+    always in pixels. This means that a QWindow with a size() of 1280x720 and
+    a devicePixelRatio() of 2 is a render target (swapchain) with a (pixel) size
+    of 2560x1440.
+
+    \snippet rhiwindow/rhiwindow.cpp render-resize
+
+    \section1 Render Loop
+
+    The application renders continuously, throttled by the presentation rate
+    (vsync). This is ensured by calling
+    \l{QWindow::requestUpdate()}{requestUpdate()} from RhiWindow::render() when
+    the currently recorded frame has been submitted.
+
+    \snippet rhiwindow/rhiwindow.cpp request-update
+
+    This eventually leads to getting a \l{QEvent::UpdateRequest}{UpdateRequest}
+    event. This is handled in the reimplementation of event().
+
+    \snippet rhiwindow/rhiwindow.cpp event
+
+    \section1 Resource and Pipeline Setup
+
+    The application records a single render pass that issues two draw calls,
+    with two different graphics pipelines. One is the "background", with the
+    texture containing the QPainter-generated image, then a single triangle is
+    rendered on top with blending enabled.
+
+    The vertex and uniform buffer used with the triangle is created like this.
+    The size of the uniform buffer is 68 bytes since the shader specific a \c
+    mat4 and a \c float member in the uniform block. Watch out for the
+    \l{https://registry.khronos.org/OpenGL/specs/gl/glspec45.core.pdf#page=159}{std140
+    layout rules}. This presents no surprises in this example since the \c
+    float member that follows the \c mat4 has the correct alignment without any
+    additional padding, but it may become relevant in other applications,
+    especially when working with types such as \c vec2 or \c vec3. When in
+    doubt, consider checking the QShaderDescription for the
+    \l{QShader::description()}{QShader}, or, what is often more convenient, run
+    the \c qsb tool on the \c{.qsb} file with the \c{-d} argument to inspect
+    the metadata in human-readable form. The printed information includes,
+    among other things, the uniform block member offsets, sizes, and the total
+    size in bytes of each uniform block.
+
+    \snippet rhiwindow/rhiwindow.cpp render-init-1
+
+    The vertex and fragment shaders both need a uniform buffer at binding point
+    0. This is ensured by the QRhiShaderResourceBindings object. The graphics
+    pipeline is then setup with the shaders and a number of additional
+    information. The example also relies on a number of convenient defaults,
+    e.g. the primitive topology is
+    \l{QRhiGraphicsPipeline::Triangles}{Triangles}, but that is the default,
+    and therefore it is not explicitly set. See QRhiGraphicsPipeline for
+    further details.
+
+    In addition to specifying the topology and various state, the pipeline must
+    also be associated with:
+
+    \list
+
+    \li The vertex input layout in form of a QRhiVertexInputLayout. This
+    specifies the type and component count for each vertex input location, the
+    total stride in bytes per vertex, and other related data.
+    QRhiVertexInputLayout only holds data, not actual native resources, and is
+    copiable.
+
+    \li A valid and successfully initialized QRhiShaderResourceBindings object.
+    This describes the layout of the resource bindings (uniform buffers,
+    textures, samplers) the shaders expect. This must either by the
+    QRhiShaderResourceBindings used when recording the draw calls, or another
+    that is
+    \l{QRhiShaderResourceBindings::isLayoutCompatible()}{layout-compatible with it}.
+    This simple application takes the former approach.
+
+    \li A valid QRhiRenderPassDescriptor object. This must be retrieved from,
+    or \l{QRhiRenderPassDescriptor::isCompatible()}{be compatible with} the
+    render target. The example uses the former, by creating a
+    QRhiRenderPassDescriptor object via
+    QRhiSwapChain::newCompatibleRenderPassDescriptor().
+
+    \endlist
+
+    \snippet rhiwindow/rhiwindow.cpp render-init-2
+
+    getShader() is a helper function that loads a \c{.qsb} file and
+    deserializes a QShader from it.
+
+    \snippet rhiwindow/rhiwindow.cpp getshader
+
+    The \c{color.vert} shader specifies the following as the vertex inputs:
+
+    \badcode
+        layout(location = 0) in vec4 position;
+        layout(location = 1) in vec3 color;
+    \endcode
+
+    The C++ code however provides vertex data as 2 floats for position, with 3
+    floats for the color interleaved. (\c x, \c y, \c r, \c g, \c b for each
+    vertex) This is why the stride is \c{5 * sizeof(float)} and the inputs for
+    locations 0 and 1 are specified as \c Float2 and \c Float3, respectively.
+    This is valid, and the \c z and \c w of the \c vec4 position will get set
+    automatically.
+
+    \section1 Rendering
+
+    Recording a frame is started by calling \l{QRhi::beginFrame()} and finished
+    by calling \l{QRhi::endFrame()}.
+
+    \snippet rhiwindow/rhiwindow.cpp beginframe
+
+    Some of the resources (buffers, textures) have static data in the
+    application, meaning the content never changes. The vertex buffer's content
+    is provided in the initialization step for example, and is not changed
+    afterwards. These data update operations are recorded in \c
+    m_initialUpdates. When not yet done, the commands on this resource update
+    batch are merged into the per-frame batch.
+
+    \snippet rhiwindow/rhiwindow.cpp render-1
+
+    Having a per-frame resource update batch is necessary since the uniform
+    buffer contents with the modelview-projection matrix and the opacity
+    changes on every frame.
+
+    \snippet rhiwindow/rhiwindow.cpp render-rotation
+
+    \snippet rhiwindow/rhiwindow.cpp render-opacity
+
+    To begin recording the render pass, a QRhiCommandBuffer is queried, and the
+    output size is determined, which will be useful for setting up the viewport
+    and resizing our fullscreen texture, if needed.
+
+    \snippet rhiwindow/rhiwindow.cpp render-cb
+
+    Starting a render pass implies clearing the render target's color and
+    depth-stencil buffers (unless the render target flags indicate otherwise,
+    but that is only an option for texture-based render targets). Here we
+    specify black for color, 1.0f for depth, and 0 for stencil (unused). The
+    last argument, \c resourceUpdates, is what ensures that the data update
+    commands recorded on the batch get committed. Alternatively, we could have
+    used QRhiCommandBuffer::resourceUpdate() instead. The render pass targets a
+    swapchain, hence calling
+    \l{QRhiSwapChain::currentFrameRenderTarget()}{currentFrameRenderTarget()}
+    to get a valid QRhiRenderTarget.
+
+    \snippet rhiwindow/rhiwindow.cpp render-pass
+
+    Recording the draw call for the triangle is straightforward: set the
+    pipeline, set the shader resources, set the vertex/index buffer(s), and
+    record the draw call. Here we use a non-indexed draw with just 3 vertices.
+
+    \snippet rhiwindow/rhiwindow.cpp render-pass-record
+
+    The \l{QRhiCommandBuffer::setShaderResources()}{setShaderResources()} call
+    has no arguments given, which implies using \c m_colorTriSrb since that was
+    associated with the active QRhiGraphicsPipeline (\c m_colorPipeline).
+
+    We will not dive into the details of the rendering of the fullscreen
+    background image. See the example source code for that. It is however worth
+    noting a common pattern for "resizing" a texture or buffer resource. There
+    is no such thing as changing the size of an existing native resource, so
+    changing a texture or buffer size must be followed by a call to create(),
+    to release and recreate the underlying native resources. To ensure that the
+    QRhiTexture always has the required size, the application implements the
+    following logic. Note that \c m_texture stays valid for the entire lifetime
+    of the window, which means object references to it, e.g. in a
+    QRhiShaderResourceBindings, continue to be valid all the time. It is only
+    the underlying native resources that come and go over time.
+
+    \snippet rhiwindow/rhiwindow.cpp ensure-texture
+
+    Once a QImage is generated and the QPainter-based drawing into it has
+    finished, we use
+    \l{QRhiResourceUpdateBatch::uploadTexture()}{uploadTexture()} to record a
+    texture upload on the resource update batch:
+
+    \snippet rhiwindow/rhiwindow.cpp ensure-texture-2
+
+    \sa QRhi, QRhiSwapChain, QWindow, QRhiCommandBuffer, QRhiResourceUpdateBatch, QRhiBuffer, QRhiTexture
+  */
diff --git a/examples/gui/gui.pro b/examples/gui/gui.pro
index 2afb8bbf..0696458d 100644
--- a/examples/gui/gui.pro
+++ b/examples/gui/gui.pro
@@ -4,4 +4,5 @@ TEMPLATE     = subdirs
 QT_FOR_CONFIG += gui
 CONFIG += no_docs_target
 
-SUBDIRS += rasterwindow
+SUBDIRS += rasterwindow \
+           rhiwindow
diff --git a/examples/gui/rhiwindow/CMakeLists.txt b/examples/gui/rhiwindow/CMakeLists.txt
new file mode 100644
index 00000000..3c50add1
--- /dev/null
+++ b/examples/gui/rhiwindow/CMakeLists.txt
@@ -0,0 +1,59 @@
+# Copyright (C) 2023 The Qt Company Ltd.
+# SPDX-License-Identifier: BSD-3-Clause
+
+cmake_minimum_required(VERSION 3.16)
+project(rhiwindow LANGUAGES CXX)
+
+if(NOT DEFINED INSTALL_EXAMPLESDIR)
+    set(INSTALL_EXAMPLESDIR "examples")
+endif()
+
+set(INSTALL_EXAMPLEDIR "${INSTALL_EXAMPLESDIR}/gui/rhiwindow")
+
+find_package(Qt6 REQUIRED COMPONENTS Core Gui)
+
+qt_standard_project_setup()
+
+qt_add_executable(rhiwindow
+    main.cpp
+    rhiwindow.cpp rhiwindow.h
+)
+
+set_target_properties(rhiwindow PROPERTIES
+    WIN32_EXECUTABLE TRUE
+    MACOSX_BUNDLE TRUE
+)
+
+target_link_libraries(rhiwindow PRIVATE
+    Qt6::Core
+    Qt6::Gui
+    Qt6::GuiPrivate
+)
+
+set_source_files_properties("shaders/prebuilt/color.vert.qsb"
+    PROPERTIES QT_RESOURCE_ALIAS "color.vert.qsb"
+)
+set_source_files_properties("shaders/prebuilt/color.frag.qsb"
+    PROPERTIES QT_RESOURCE_ALIAS "color.frag.qsb"
+)
+set_source_files_properties("shaders/prebuilt/quad.vert.qsb"
+    PROPERTIES QT_RESOURCE_ALIAS "quad.vert.qsb"
+)
+set_source_files_properties("shaders/prebuilt/quad.frag.qsb"
+    PROPERTIES QT_RESOURCE_ALIAS "quad.frag.qsb"
+)
+qt_add_resources(rhiwindow "rhiwindow"
+    PREFIX
+        "/"
+    FILES
+        "shaders/prebuilt/color.vert.qsb"
+        "shaders/prebuilt/color.frag.qsb"
+        "shaders/prebuilt/quad.vert.qsb"
+        "shaders/prebuilt/quad.frag.qsb"
+)
+
+install(TARGETS rhiwindow
+    RUNTIME DESTINATION "${INSTALL_EXAMPLEDIR}"
+    BUNDLE DESTINATION "${INSTALL_EXAMPLEDIR}"
+    LIBRARY DESTINATION "${INSTALL_EXAMPLEDIR}"
+)
diff --git a/examples/gui/rhiwindow/main.cpp b/examples/gui/rhiwindow/main.cpp
new file mode 100644
index 00000000..6ca38e7b
--- /dev/null
+++ b/examples/gui/rhiwindow/main.cpp
@@ -0,0 +1,110 @@
+// Copyright (C) 2023 The Qt Company Ltd.
+// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
+
+#include <QGuiApplication>
+#include <QCommandLineParser>
+#include "rhiwindow.h"
+
+int main(int argc, char **argv)
+{
+    QGuiApplication app(argc, argv);
+
+    QRhi::Implementation graphicsApi;
+
+    // Use platform-specific defaults when no command-line arguments given.
+#if defined(Q_OS_WIN)
+    graphicsApi = QRhi::D3D11;
+#elif defined(Q_OS_MACOS) || defined(Q_OS_IOS)
+    graphicsApi = QRhi::Metal;
+#elif QT_CONFIG(vulkan)
+    graphicsApi = QRhi::Vulkan;
+#else
+    graphicsApi = QRhi::OpenGLES2;
+#endif
+
+    QCommandLineParser cmdLineParser;
+    cmdLineParser.addHelpOption();
+    QCommandLineOption nullOption({ "n", "null" }, QLatin1String("Null"));
+    cmdLineParser.addOption(nullOption);
+    QCommandLineOption glOption({ "g", "opengl" }, QLatin1String("OpenGL"));
+    cmdLineParser.addOption(glOption);
+    QCommandLineOption vkOption({ "v", "vulkan" }, QLatin1String("Vulkan"));
+    cmdLineParser.addOption(vkOption);
+    QCommandLineOption d3d11Option({ "d", "d3d11" }, QLatin1String("Direct3D 11"));
+    cmdLineParser.addOption(d3d11Option);
+    QCommandLineOption d3d12Option({ "D", "d3d12" }, QLatin1String("Direct3D 12"));
+    cmdLineParser.addOption(d3d12Option);
+    QCommandLineOption mtlOption({ "m", "metal" }, QLatin1String("Metal"));
+    cmdLineParser.addOption(mtlOption);
+
+    cmdLineParser.process(app);
+    if (cmdLineParser.isSet(nullOption))
+        graphicsApi = QRhi::Null;
+    if (cmdLineParser.isSet(glOption))
+        graphicsApi = QRhi::OpenGLES2;
+    if (cmdLineParser.isSet(vkOption))
+        graphicsApi = QRhi::Vulkan;
+    if (cmdLineParser.isSet(d3d11Option))
+        graphicsApi = QRhi::D3D11;
+    if (cmdLineParser.isSet(d3d12Option))
+        graphicsApi = QRhi::D3D12;
+    if (cmdLineParser.isSet(mtlOption))
+        graphicsApi = QRhi::Metal;
+
+ //! [api-setup]
+    // For OpenGL, to ensure there is a depth/stencil buffer for the window.
+    // With other APIs this is under the application's control (QRhiRenderBuffer etc.)
+    // and so no special setup is needed for those.
+    QSurfaceFormat fmt;
+    fmt.setDepthBufferSize(24);
+    fmt.setStencilBufferSize(8);
+    // Special case macOS to allow using OpenGL there.
+    // (the default Metal is the recommended approach, though)
+    // gl_VertexID is a GLSL 130 feature, and so the default OpenGL 2.1 context
+    // we get on macOS is not sufficient.
+#ifdef Q_OS_MACOS
+    fmt.setVersion(4, 1);
+    fmt.setProfile(QSurfaceFormat::CoreProfile);
+#endif
+    QSurfaceFormat::setDefaultFormat(fmt);
+
+    // For Vulkan.
+#if QT_CONFIG(vulkan)
+    QVulkanInstance inst;
+    if (graphicsApi == QRhi::Vulkan) {
+        // Request validation, if available. This is completely optional
+        // and has a performance impact, and should be avoided in production use.
+        inst.setLayers({ "VK_LAYER_KHRONOS_validation" });
+        // Play nice with QRhi.
+        inst.setExtensions(QRhiVulkanInitParams::preferredInstanceExtensions());
+        if (!inst.create()) {
+            qWarning("Failed to create Vulkan instance, switching to OpenGL");
+            graphicsApi = QRhi::OpenGLES2;
+        }
+    }
+#endif
+//! [api-setup]
+
+    HelloWindow window(graphicsApi);
+
+#if QT_CONFIG(vulkan)
+    if (graphicsApi == QRhi::Vulkan)
+        window.setVulkanInstance(&inst);
+#endif
+    window.resize(1280, 720);
+    window.setTitle(QCoreApplication::applicationName() + QLatin1String(" - ") + window.graphicsApiName());
+    window.show();
+
+    int ret = app.exec();
+
+    // RhiWindow::event() will not get invoked when the
+    // PlatformSurfaceAboutToBeDestroyed event is sent during the QWindow
+    // destruction. That happens only when exiting via app::quit() instead of
+    // the more common QWindow::close(). Take care of it: if the QPlatformWindow
+    // is still around (there was no close() yet), get rid of the swapchain
+    // while it's not too late.
+    if (window.handle())
+        window.releaseSwapChain();
+
+    return ret;
+}
diff --git a/examples/gui/rhiwindow/rhiwindow.cpp b/examples/gui/rhiwindow/rhiwindow.cpp
new file mode 100644
index 00000000..5022244b
--- /dev/null
+++ b/examples/gui/rhiwindow/rhiwindow.cpp
@@ -0,0 +1,435 @@
+// Copyright (C) 2020 The Qt Company Ltd.
+// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
+
+#include "rhiwindow.h"
+#include <QPlatformSurfaceEvent>
+#include <QPainter>
+#include <QFile>
+#include <rhi/qshader.h>
+
+//! [rhiwindow-ctor]
+RhiWindow::RhiWindow(QRhi::Implementation graphicsApi)
+    : m_graphicsApi(graphicsApi)
+{
+    switch (graphicsApi) {
+    case QRhi::OpenGLES2:
+        setSurfaceType(OpenGLSurface);
+        break;
+    case QRhi::Vulkan:
+        setSurfaceType(VulkanSurface);
+        break;
+    case QRhi::D3D11:
+    case QRhi::D3D12:
+        setSurfaceType(Direct3DSurface);
+        break;
+    case QRhi::Metal:
+        setSurfaceType(MetalSurface);
+        break;
+    case QRhi::Null:
+        break; // RasterSurface
+    }
+}
+//! [rhiwindow-ctor]
+
+QString RhiWindow::graphicsApiName() const
+{
+    switch (m_graphicsApi) {
+    case QRhi::Null:
+        return QLatin1String("Null (no output)");
+    case QRhi::OpenGLES2:
+        return QLatin1String("OpenGL");
+    case QRhi::Vulkan:
+        return QLatin1String("Vulkan");
+    case QRhi::D3D11:
+        return QLatin1String("Direct3D 11");
+    case QRhi::D3D12:
+        return QLatin1String("Direct3D 12");
+    case QRhi::Metal:
+        return QLatin1String("Metal");
+    }
+    return QString();
+}
+
+//! [expose]
+void RhiWindow::exposeEvent(QExposeEvent *)
+{
+    // initialize and start rendering when the window becomes usable for graphics purposes
+    if (isExposed() && !m_initialized) {
+        init();
+        resizeSwapChain();
+        m_initialized = true;
+    }
+
+    const QSize surfaceSize = m_hasSwapChain ? m_sc->surfacePixelSize() : QSize();
+
+    // stop pushing frames when not exposed (or size is 0)
+    if ((!isExposed() || (m_hasSwapChain && surfaceSize.isEmpty())) && m_initialized && !m_notExposed)
+        m_notExposed = true;
+
+    // Continue when exposed again and the surface has a valid size. Note that
+    // surfaceSize can be (0, 0) even though size() reports a valid one, hence
+    // trusting surfacePixelSize() and not QWindow.
+    if (isExposed() && m_initialized && m_notExposed && !surfaceSize.isEmpty()) {
+        m_notExposed = false;
+        m_newlyExposed = true;
+    }
+
+    // always render a frame on exposeEvent() (when exposed) in order to update
+    // immediately on window resize.
+    if (isExposed() && !surfaceSize.isEmpty())
+        render();
+}
+//! [expose]
+
+//! [event]
+bool RhiWindow::event(QEvent *e)
+{
+    switch (e->type()) {
+    case QEvent::UpdateRequest:
+        render();
+        break;
+
+    case QEvent::PlatformSurface:
+        // this is the proper time to tear down the swapchain (while the native window and surface are still around)
+        if (static_cast<QPlatformSurfaceEvent *>(e)->surfaceEventType() == QPlatformSurfaceEvent::SurfaceAboutToBeDestroyed)
+            releaseSwapChain();
+        break;
+
+    default:
+        break;
+    }
+
+    return QWindow::event(e);
+}
+//! [event]
+
+//! [rhi-init]
+void RhiWindow::init()
+{
+    if (m_graphicsApi == QRhi::Null) {
+        QRhiNullInitParams params;
+        m_rhi.reset(QRhi::create(QRhi::Null, &params));
+    }
+
+#if QT_CONFIG(opengl)
+    if (m_graphicsApi == QRhi::OpenGLES2) {
+        m_fallbackSurface.reset(QRhiGles2InitParams::newFallbackSurface());
+        QRhiGles2InitParams params;
+        params.fallbackSurface = m_fallbackSurface.get();
+        params.window = this;
+        m_rhi.reset(QRhi::create(QRhi::OpenGLES2, &params));
+    }
+#endif
+
+#if QT_CONFIG(vulkan)
+    if (m_graphicsApi == QRhi::Vulkan) {
+        QRhiVulkanInitParams params;
+        params.inst = vulkanInstance();
+        params.window = this;
+        m_rhi.reset(QRhi::create(QRhi::Vulkan, &params));
+    }
+#endif
+
+#ifdef Q_OS_WIN
+    if (m_graphicsApi == QRhi::D3D11) {
+        QRhiD3D11InitParams params;
+        // Enable the debug layer, if available. This is optional
+        // and should be avoided in production builds.
+        params.enableDebugLayer = true;
+        m_rhi.reset(QRhi::create(QRhi::D3D11, &params));
+    } else if (m_graphicsApi == QRhi::D3D12) {
+        QRhiD3D12InitParams params;
+        // Enable the debug layer, if available. This is optional
+        // and should be avoided in production builds.
+        params.enableDebugLayer = true;
+        m_rhi.reset(QRhi::create(QRhi::D3D12, &params));
+    }
+#endif
+
+#if defined(Q_OS_MACOS) || defined(Q_OS_IOS)
+    if (m_graphicsApi == QRhi::Metal) {
+        QRhiMetalInitParams params;
+        m_rhi.reset(QRhi::create(QRhi::Metal, &params));
+    }
+#endif
+
+    if (!m_rhi)
+        qFatal("Failed to create RHI backend");
+//! [rhi-init]
+
+//! [swapchain-init]
+    m_sc.reset(m_rhi->newSwapChain());
+    m_ds.reset(m_rhi->newRenderBuffer(QRhiRenderBuffer::DepthStencil,
+                                      QSize(), // no need to set the size here, due to UsedWithSwapChainOnly
+                                      1,
+                                      QRhiRenderBuffer::UsedWithSwapChainOnly));
+    m_sc->setWindow(this);
+    m_sc->setDepthStencil(m_ds.get());
+    m_rp.reset(m_sc->newCompatibleRenderPassDescriptor());
+    m_sc->setRenderPassDescriptor(m_rp.get());
+//! [swapchain-init]
+
+    customInit();
+}
+
+//! [swapchain-resize]
+void RhiWindow::resizeSwapChain()
+{
+    m_hasSwapChain = m_sc->createOrResize(); // also handles m_ds
+
+    const QSize outputSize = m_sc->currentPixelSize();
+    m_viewProjection = m_rhi->clipSpaceCorrMatrix();
+    m_viewProjection.perspective(45.0f, outputSize.width() / (float) outputSize.height(), 0.01f, 1000.0f);
+    m_viewProjection.translate(0, 0, -4);
+}
+//! [swapchain-resize]
+
+void RhiWindow::releaseSwapChain()
+{
+    if (m_hasSwapChain) {
+        m_hasSwapChain = false;
+        m_sc->destroy();
+    }
+}
+
+//! [render-precheck]
+void RhiWindow::render()
+{
+    if (!m_hasSwapChain || m_notExposed)
+        return;
+//! [render-precheck]
+
+//! [render-resize]
+    // If the window got resized or newly exposed, resize the swapchain. (the
+    // newly-exposed case is not actually required by some platforms, but is
+    // here for robustness and portability)
+    //
+    // This (exposeEvent + the logic here) is the only safe way to perform
+    // resize handling. Note the usage of the RHI's surfacePixelSize(), and
+    // never QWindow::size(). (the two may or may not be the same under the hood,
+    // depending on the backend and platform)
+    //
+    if (m_sc->currentPixelSize() != m_sc->surfacePixelSize() || m_newlyExposed) {
+        resizeSwapChain();
+        if (!m_hasSwapChain)
+            return;
+        m_newlyExposed = false;
+    }
+//! [render-resize]
+
+//! [beginframe]
+    QRhi::FrameOpResult result = m_rhi->beginFrame(m_sc.get());
+    if (result == QRhi::FrameOpSwapChainOutOfDate) {
+        resizeSwapChain();
+        if (!m_hasSwapChain)
+            return;
+        result = m_rhi->beginFrame(m_sc.get());
+    }
+    if (result != QRhi::FrameOpSuccess) {
+        qWarning("beginFrame failed with %d, will retry", result);
+        requestUpdate();
+        return;
+    }
+
+    customRender();
+//! [beginframe]
+
+//! [request-update]
+    m_rhi->endFrame(m_sc.get());
+
+    // Always request the next frame via requestUpdate(). On some platforms this is backed
+    // by a platform-specific solution, e.g. CVDisplayLink on macOS, which is potentially
+    // more efficient than a timer, queued metacalls, etc.
+    requestUpdate();
+}
+//! [request-update]
+
+static float vertexData[] = {
+    // Y up (note clipSpaceCorrMatrix in m_viewProjection), CCW
+     0.0f,   0.5f,   1.0f, 0.0f, 0.0f,
+    -0.5f,  -0.5f,   0.0f, 1.0f, 0.0f,
+     0.5f,  -0.5f,   0.0f, 0.0f, 1.0f,
+};
+
+//! [getshader]
+static QShader getShader(const QString &name)
+{
+    QFile f(name);
+    if (f.open(QIODevice::ReadOnly))
+        return QShader::fromSerialized(f.readAll());
+
+    return QShader();
+}
+//! [getshader]
+
+HelloWindow::HelloWindow(QRhi::Implementation graphicsApi)
+    : RhiWindow(graphicsApi)
+{
+}
+
+//! [ensure-texture]
+void HelloWindow::ensureFullscreenTexture(const QSize &pixelSize, QRhiResourceUpdateBatch *u)
+{
+    if (m_texture && m_texture->pixelSize() == pixelSize)
+        return;
+
+    if (!m_texture)
+        m_texture.reset(m_rhi->newTexture(QRhiTexture::RGBA8, pixelSize));
+    else
+        m_texture->setPixelSize(pixelSize);
+
+    m_texture->create();
+
+    QImage image(pixelSize, QImage::Format_RGBA8888_Premultiplied);
+//! [ensure-texture]
+    QPainter painter(&image);
+    painter.fillRect(QRectF(QPointF(0, 0), pixelSize), QColor::fromRgbF(0.4f, 0.7f, 0.0f, 1.0f));
+    painter.setPen(Qt::transparent);
+    painter.setBrush({ QGradient(QGradient::DeepBlue) });
+    painter.drawRoundedRect(QRectF(QPointF(20, 20), pixelSize - QSize(40, 40)), 16, 16);
+    painter.setPen(Qt::black);
+    QFont font;
+    font.setPixelSize(0.05 * qMin(pixelSize.width(), pixelSize.height()));
+    painter.setFont(font);
+    painter.drawText(QRectF(QPointF(60, 60), pixelSize - QSize(120, 120)), 0,
+                     QLatin1String("Rendering with QRhi to a resizable QWindow.\nThe 3D API is %1.\nUse the command-line options to choose a different API.")
+                     .arg(graphicsApiName()));
+    painter.end();
+
+    if (m_rhi->isYUpInNDC())
+        image = image.mirrored();
+
+//! [ensure-texture-2]
+    u->uploadTexture(m_texture.get(), image);
+//! [ensure-texture-2]
+}
+
+//! [render-init-1]
+void HelloWindow::customInit()
+{
+    m_initialUpdates = m_rhi->nextResourceUpdateBatch();
+
+    m_vbuf.reset(m_rhi->newBuffer(QRhiBuffer::Immutable, QRhiBuffer::VertexBuffer, sizeof(vertexData)));
+    m_vbuf->create();
+    m_initialUpdates->uploadStaticBuffer(m_vbuf.get(), vertexData);
+
+    static const quint32 UBUF_SIZE = 68;
+    m_ubuf.reset(m_rhi->newBuffer(QRhiBuffer::Dynamic, QRhiBuffer::UniformBuffer, UBUF_SIZE));
+    m_ubuf->create();
+//! [render-init-1]
+
+    ensureFullscreenTexture(m_sc->surfacePixelSize(), m_initialUpdates);
+
+    m_sampler.reset(m_rhi->newSampler(QRhiSampler::Linear, QRhiSampler::Linear, QRhiSampler::None,
+                                      QRhiSampler::ClampToEdge, QRhiSampler::ClampToEdge));
+    m_sampler->create();
+
+ //! [render-init-2]
+    m_colorTriSrb.reset(m_rhi->newShaderResourceBindings());
+    static const QRhiShaderResourceBinding::StageFlags visibility =
+            QRhiShaderResourceBinding::VertexStage | QRhiShaderResourceBinding::FragmentStage;
+    m_colorTriSrb->setBindings({
+            QRhiShaderResourceBinding::uniformBuffer(0, visibility, m_ubuf.get())
+    });
+    m_colorTriSrb->create();
+
+    m_colorPipeline.reset(m_rhi->newGraphicsPipeline());
+    // Enable depth testing; not quite needed for a simple triangle, but we
+    // have a depth-stencil buffer so why not.
+    m_colorPipeline->setDepthTest(true);
+    m_colorPipeline->setDepthWrite(true);
+    // Blend factors default to One, OneOneMinusSrcAlpha, which is convenient.
+    QRhiGraphicsPipeline::TargetBlend premulAlphaBlend;
+    premulAlphaBlend.enable = true;
+    m_colorPipeline->setTargetBlends({ premulAlphaBlend });
+    m_colorPipeline->setShaderStages({
+        { QRhiShaderStage::Vertex, getShader(QLatin1String(":/color.vert.qsb")) },
+        { QRhiShaderStage::Fragment, getShader(QLatin1String(":/color.frag.qsb")) }
+    });
+    QRhiVertexInputLayout inputLayout;
+    inputLayout.setBindings({
+        { 5 * sizeof(float) }
+    });
+    inputLayout.setAttributes({
+        { 0, 0, QRhiVertexInputAttribute::Float2, 0 },
+        { 0, 1, QRhiVertexInputAttribute::Float3, 2 * sizeof(float) }
+    });
+    m_colorPipeline->setVertexInputLayout(inputLayout);
+    m_colorPipeline->setShaderResourceBindings(m_colorTriSrb.get());
+    m_colorPipeline->setRenderPassDescriptor(m_rp.get());
+    m_colorPipeline->create();
+//! [render-init-2]
+
+    m_fullscreenQuadSrb.reset(m_rhi->newShaderResourceBindings());
+    m_fullscreenQuadSrb->setBindings({
+            QRhiShaderResourceBinding::sampledTexture(0, QRhiShaderResourceBinding::FragmentStage,
+                                       m_texture.get(), m_sampler.get())
+    });
+    m_fullscreenQuadSrb->create();
+
+    m_fullscreenQuadPipeline.reset(m_rhi->newGraphicsPipeline());
+    m_fullscreenQuadPipeline->setShaderStages({
+        { QRhiShaderStage::Vertex, getShader(QLatin1String(":/quad.vert.qsb")) },
+        { QRhiShaderStage::Fragment, getShader(QLatin1String(":/quad.frag.qsb")) }
+    });
+    m_fullscreenQuadPipeline->setVertexInputLayout({});
+    m_fullscreenQuadPipeline->setShaderResourceBindings(m_fullscreenQuadSrb.get());
+    m_fullscreenQuadPipeline->setRenderPassDescriptor(m_rp.get());
+    m_fullscreenQuadPipeline->create();
+}
+
+//! [render-1]
+void HelloWindow::customRender()
+{
+    QRhiResourceUpdateBatch *resourceUpdates = m_rhi->nextResourceUpdateBatch();
+
+    if (m_initialUpdates) {
+        resourceUpdates->merge(m_initialUpdates);
+        m_initialUpdates->release();
+        m_initialUpdates = nullptr;
+    }
+//! [render-1]
+
+//! [render-rotation]
+    m_rotation += 1.0f;
+    QMatrix4x4 modelViewProjection = m_viewProjection;
+    modelViewProjection.rotate(m_rotation, 0, 1, 0);
+    resourceUpdates->updateDynamicBuffer(m_ubuf.get(), 0, 64, modelViewProjection.constData());
+//! [render-rotation]
+
+//! [render-opacity]
+    m_opacity += m_opacityDir * 0.005f;
+    if (m_opacity < 0.0f || m_opacity > 1.0f) {
+        m_opacityDir *= -1;
+        m_opacity = qBound(0.0f, m_opacity, 1.0f);
+    }
+    resourceUpdates->updateDynamicBuffer(m_ubuf.get(), 64, 4, &m_opacity);
+//! [render-opacity]
+
+//! [render-cb]
+    QRhiCommandBuffer *cb = m_sc->currentFrameCommandBuffer();
+    const QSize outputSizeInPixels = m_sc->currentPixelSize();
+//! [render-cb]
+
+    // (re)create the texture with a size matching the output surface size, when necessary.
+    ensureFullscreenTexture(outputSizeInPixels, resourceUpdates);
+
+//! [render-pass]
+    cb->beginPass(m_sc->currentFrameRenderTarget(), Qt::black, { 1.0f, 0 }, resourceUpdates);
+//! [render-pass]
+
+    cb->setGraphicsPipeline(m_fullscreenQuadPipeline.get());
+    cb->setViewport({ 0, 0, float(outputSizeInPixels.width()), float(outputSizeInPixels.height()) });
+    cb->setShaderResources();
+    cb->draw(3);
+
+//! [render-pass-record]
+    cb->setGraphicsPipeline(m_colorPipeline.get());
+    cb->setShaderResources();
+    const QRhiCommandBuffer::VertexInput vbufBinding(m_vbuf.get(), 0);
+    cb->setVertexInput(0, 1, &vbufBinding);
+    cb->draw(3);
+
+    cb->endPass();
+//! [render-pass-record]
+}
diff --git a/examples/gui/rhiwindow/rhiwindow.h b/examples/gui/rhiwindow/rhiwindow.h
new file mode 100644
index 00000000..520c3e8c
--- /dev/null
+++ b/examples/gui/rhiwindow/rhiwindow.h
@@ -0,0 +1,78 @@
+// Copyright (C) 2020 The Qt Company Ltd.
+// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
+
+#ifndef WINDOW_H
+#define WINDOW_H
+
+#include <QWindow>
+#include <QOffscreenSurface>
+#include <rhi/qrhi.h>
+
+class RhiWindow : public QWindow
+{
+public:
+    RhiWindow(QRhi::Implementation graphicsApi);
+    QString graphicsApiName() const;
+    void releaseSwapChain();
+
+protected:
+    virtual void customInit() = 0;
+    virtual void customRender() = 0;
+
+    // destruction order matters to a certain degree: the fallbackSurface must
+    // outlive the rhi, the rhi must outlive all other resources.  The resources
+    // need no special order when destroying.
+#if QT_CONFIG(opengl)
+    std::unique_ptr<QOffscreenSurface> m_fallbackSurface;
+#endif
+    std::unique_ptr<QRhi> m_rhi;
+//! [swapchain-data]
+    std::unique_ptr<QRhiSwapChain> m_sc;
+    std::unique_ptr<QRhiRenderBuffer> m_ds;
+    std::unique_ptr<QRhiRenderPassDescriptor> m_rp;
+//! [swapchain-data]
+    bool m_hasSwapChain = false;
+    QMatrix4x4 m_viewProjection;
+
+private:
+    void init();
+    void resizeSwapChain();
+    void render();
+
+    void exposeEvent(QExposeEvent *) override;
+    bool event(QEvent *) override;
+
+    QRhi::Implementation m_graphicsApi;
+    bool m_initialized = false;
+    bool m_notExposed = false;
+    bool m_newlyExposed = false;
+};
+
+class HelloWindow : public RhiWindow
+{
+public:
+    HelloWindow(QRhi::Implementation graphicsApi);
+
+    void customInit() override;
+    void customRender() override;
+
+private:
+    void ensureFullscreenTexture(const QSize &pixelSize, QRhiResourceUpdateBatch *u);
+
+    std::unique_ptr<QRhiBuffer> m_vbuf;
+    std::unique_ptr<QRhiBuffer> m_ubuf;
+    std::unique_ptr<QRhiTexture> m_texture;
+    std::unique_ptr<QRhiSampler> m_sampler;
+    std::unique_ptr<QRhiShaderResourceBindings> m_colorTriSrb;
+    std::unique_ptr<QRhiGraphicsPipeline> m_colorPipeline;
+    std::unique_ptr<QRhiShaderResourceBindings> m_fullscreenQuadSrb;
+    std::unique_ptr<QRhiGraphicsPipeline> m_fullscreenQuadPipeline;
+
+    QRhiResourceUpdateBatch *m_initialUpdates = nullptr;
+
+    float m_rotation = 0;
+    float m_opacity = 1;
+    int m_opacityDir = -1;
+};
+
+#endif
diff --git a/examples/gui/rhiwindow/rhiwindow.pri b/examples/gui/rhiwindow/rhiwindow.pri
new file mode 100644
index 00000000..d0ef7a26
--- /dev/null
+++ b/examples/gui/rhiwindow/rhiwindow.pri
@@ -0,0 +1,4 @@
+INCLUDEPATH += $$PWD
+SOURCES += $$PWD/rhiwindow.cpp
+HEADERS += $$PWD/rhiwindow.h
+RESOURCES += $$PWD/rhiwindow.qrc
diff --git a/examples/gui/rhiwindow/rhiwindow.pro b/examples/gui/rhiwindow/rhiwindow.pro
new file mode 100644
index 00000000..18f259aa
--- /dev/null
+++ b/examples/gui/rhiwindow/rhiwindow.pro
@@ -0,0 +1,9 @@
+include(rhiwindow.pri)
+
+QT += gui-private
+
+SOURCES += \
+    main.cpp
+
+target.path = $$[QT_INSTALL_EXAMPLES]/gui/rhiwindow
+INSTALLS += target
diff --git a/examples/gui/rhiwindow/rhiwindow.qrc b/examples/gui/rhiwindow/rhiwindow.qrc
new file mode 100644
index 00000000..1009ec5d
--- /dev/null
+++ b/examples/gui/rhiwindow/rhiwindow.qrc
@@ -0,0 +1,8 @@
+<!DOCTYPE RCC><RCC version="1.0">
+<qresource>
+  <file alias="color.vert.qsb">shaders/prebuilt/color.vert.qsb</file>
+  <file alias="color.frag.qsb">shaders/prebuilt/color.frag.qsb</file>
+  <file alias="quad.vert.qsb">shaders/prebuilt/quad.vert.qsb</file>
+  <file alias="quad.frag.qsb">shaders/prebuilt/quad.frag.qsb</file>
+</qresource>
+</RCC>
diff --git a/examples/gui/rhiwindow/shaders/color.frag b/examples/gui/rhiwindow/shaders/color.frag
new file mode 100644
index 00000000..6e0a3bc9
--- /dev/null
+++ b/examples/gui/rhiwindow/shaders/color.frag
@@ -0,0 +1,15 @@
+#version 440
+
+layout(location = 0) in vec3 v_color;
+
+layout(location = 0) out vec4 fragColor;
+
+layout(std140, binding = 0) uniform buf {
+    mat4 mvp;
+    float opacity;
+};
+
+void main()
+{
+    fragColor = vec4(v_color * opacity, opacity);
+}
diff --git a/examples/gui/rhiwindow/shaders/color.vert b/examples/gui/rhiwindow/shaders/color.vert
new file mode 100644
index 00000000..70852ab8
--- /dev/null
+++ b/examples/gui/rhiwindow/shaders/color.vert
@@ -0,0 +1,17 @@
+#version 440
+
+layout(location = 0) in vec4 position;
+layout(location = 1) in vec3 color;
+
+layout(location = 0) out vec3 v_color;
+
+layout(std140, binding = 0) uniform buf {
+    mat4 mvp;
+    float opacity;
+};
+
+void main()
+{
+    v_color = color;
+    gl_Position = mvp * position;
+}
diff --git a/examples/gui/rhiwindow/shaders/prebuilt/color.frag.qsb b/examples/gui/rhiwindow/shaders/prebuilt/color.frag.qsb
new file mode 100644
index 00000000..b4db470e
Binary files /dev/null and b/examples/gui/rhiwindow/shaders/prebuilt/color.frag.qsb differ
diff --git a/examples/gui/rhiwindow/shaders/prebuilt/color.vert.qsb b/examples/gui/rhiwindow/shaders/prebuilt/color.vert.qsb
new file mode 100644
index 00000000..ab046b77
Binary files /dev/null and b/examples/gui/rhiwindow/shaders/prebuilt/color.vert.qsb differ
diff --git a/examples/gui/rhiwindow/shaders/prebuilt/quad.frag.qsb b/examples/gui/rhiwindow/shaders/prebuilt/quad.frag.qsb
new file mode 100644
index 00000000..c2ea3cf2
Binary files /dev/null and b/examples/gui/rhiwindow/shaders/prebuilt/quad.frag.qsb differ
diff --git a/examples/gui/rhiwindow/shaders/prebuilt/quad.vert.qsb b/examples/gui/rhiwindow/shaders/prebuilt/quad.vert.qsb
new file mode 100644
index 00000000..f0b64f75
Binary files /dev/null and b/examples/gui/rhiwindow/shaders/prebuilt/quad.vert.qsb differ
diff --git a/examples/gui/rhiwindow/shaders/quad.frag b/examples/gui/rhiwindow/shaders/quad.frag
new file mode 100644
index 00000000..65882a42
--- /dev/null
+++ b/examples/gui/rhiwindow/shaders/quad.frag
@@ -0,0 +1,11 @@
+#version 440
+
+layout(location = 0) in vec2 v_uv;
+layout(location = 0) out vec4 fragColor;
+layout(binding = 0) uniform sampler2D tex;
+
+void main()
+{
+    vec4 c = texture(tex, v_uv);
+    fragColor = vec4(c.rgb * c.a, c.a);
+}
diff --git a/examples/gui/rhiwindow/shaders/quad.vert b/examples/gui/rhiwindow/shaders/quad.vert
new file mode 100644
index 00000000..359896d0
--- /dev/null
+++ b/examples/gui/rhiwindow/shaders/quad.vert
@@ -0,0 +1,10 @@
+#version 440
+
+layout (location = 0) out vec2 v_uv;
+
+void main()
+{
+    // https://www.saschawillems.de/blog/2016/08/13/vulkan-tutorial-on-rendering-a-fullscreen-quad-without-buffers/
+    v_uv = vec2((gl_VertexIndex << 1) & 2, gl_VertexIndex & 2);
+    gl_Position = vec4(v_uv * 2.0 - 1.0, 0.0, 1.0);
+}
diff --git a/examples/network/dnslookup/dnslookup.cpp b/examples/network/dnslookup/dnslookup.cpp
index 9ebdfb1f..9e74ddcf 100644
--- a/examples/network/dnslookup/dnslookup.cpp
+++ b/examples/network/dnslookup/dnslookup.cpp
@@ -14,6 +14,7 @@
 #include <cstdio>
 
 using namespace Qt::StringLiterals;
+
 static std::optional<QDnsLookup::Type> typeFromParameter(QStringView type)
 {
     if (type.compare(u"a", Qt::CaseInsensitive) == 0)
@@ -218,7 +219,7 @@ int main(int argc, char *argv[])
 
     DnsManager manager;
     manager.setQuery(query);
-    QTimer::singleShot(0, &manager, SLOT(execute()));
+    QTimer::singleShot(0, &manager, &DnsManager::execute);
 
     return app.exec();
 }
diff --git a/examples/network/doc/src/network-chat.qdoc b/examples/network/doc/src/network-chat.qdoc
index 29ba0652..da12f5f6 100644
--- a/examples/network/doc/src/network-chat.qdoc
+++ b/examples/network/doc/src/network-chat.qdoc
@@ -3,8 +3,10 @@
 
 /*!
     \example network-chat
-    \title Network Chat Example
+    \title Network Chat
     \ingroup examples-network
+    \examplecategory {Networking}
+    \meta tag {network,serialization}
     \brief Demonstrates a stateful peer-to-peer Chat client.
 
     This example uses broadcasting with QUdpSocket and QNetworkInterface to
diff --git a/examples/network/network-chat/CMakeLists.txt b/examples/network/network-chat/CMakeLists.txt
index 6b6abd1c..dd3164a1 100644
--- a/examples/network/network-chat/CMakeLists.txt
+++ b/examples/network/network-chat/CMakeLists.txt
@@ -28,6 +28,10 @@ set_target_properties(network-chat PROPERTIES
     MACOSX_BUNDLE TRUE
 )
 
+target_compile_definitions(network-chat PRIVATE
+    QT_USE_QSTRINGBUILDER
+)
+
 target_link_libraries(network-chat PRIVATE
     Qt6::Core
     Qt6::Gui
diff --git a/examples/network/network-chat/chatdialog.cpp b/examples/network/network-chat/chatdialog.cpp
index ddec5c29..55c98fed 100644
--- a/examples/network/network-chat/chatdialog.cpp
+++ b/examples/network/network-chat/chatdialog.cpp
@@ -1,10 +1,14 @@
 // Copyright (C) 2016 The Qt Company Ltd.
 // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
 
-#include <QtWidgets>
-
 #include "chatdialog.h"
 
+#include <QTimer>
+#include <QScrollBar>
+#include <QLineEdit>
+#include <QTextTable>
+#include <QMessageBox>
+
 ChatDialog::ChatDialog(QWidget *parent)
     : QDialog(parent)
 {
@@ -27,7 +31,7 @@ ChatDialog::ChatDialog(QWidget *parent)
     myNickName = client.nickName();
     newParticipant(myNickName);
     tableFormat.setBorder(0);
-    QTimer::singleShot(10 * 1000, this, SLOT(showInformation()));
+    QTimer::singleShot(10 * 1000, this, &ChatDialog::showInformation);
 }
 
 void ChatDialog::appendMessage(const QString &from, const QString &message)
diff --git a/examples/network/network-chat/chatdialog.h b/examples/network/network-chat/chatdialog.h
index adda73fb..45a98588 100644
--- a/examples/network/network-chat/chatdialog.h
+++ b/examples/network/network-chat/chatdialog.h
@@ -12,7 +12,7 @@ class ChatDialog : public QDialog, private Ui::ChatDialog
     Q_OBJECT
 
 public:
-    ChatDialog(QWidget *parent = nullptr);
+    explicit ChatDialog(QWidget *parent = nullptr);
 
 public slots:
     void appendMessage(const QString &from, const QString &message);
diff --git a/examples/network/network-chat/client.cpp b/examples/network/network-chat/client.cpp
index bbce358c..54bde6cd 100644
--- a/examples/network/network-chat/client.cpp
+++ b/examples/network/network-chat/client.cpp
@@ -1,15 +1,18 @@
 // Copyright (C) 2016 The Qt Company Ltd.
 // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
 
-#include <QtNetwork>
-
 #include "client.h"
 #include "connection.h"
 #include "peermanager.h"
 
+#include <QHostInfo>
+
+#include <algorithm>
+#include <functional>
+
 Client::Client()
+    : peerManager(new PeerManager(this))
 {
-    peerManager = new PeerManager(this);
     peerManager->setServerPort(server.serverPort());
     peerManager->startBroadcasting();
 
@@ -36,14 +39,15 @@ QString Client::nickName() const
 
 bool Client::hasConnection(const QHostAddress &senderIp, int senderPort) const
 {
-    if (senderPort == -1)
-        return peers.contains(senderIp);
-
-    if (!peers.contains(senderIp))
+    auto [begin, end] = peers.equal_range(senderIp);
+    if (begin == peers.constEnd())
         return false;
 
-    const QList<Connection *> connections = peers.values(senderIp);
-    for (const Connection *connection : connections) {
+    if (senderPort == -1)
+        return true;
+
+    for (; begin != end; ++begin) {
+        Connection *connection = *begin;
         if (connection->peerPort() == senderPort)
             return true;
     }
@@ -63,8 +67,7 @@ void Client::newConnection(Connection *connection)
 void Client::readyForUse()
 {
     Connection *connection = qobject_cast<Connection *>(sender());
-    if (!connection || hasConnection(connection->peerAddress(),
-                                     connection->peerPort()))
+    if (!connection || hasConnection(connection->peerAddress(), connection->peerPort()))
         return;
 
     connect(connection,  &Connection::newMessage,
@@ -90,8 +93,7 @@ void Client::connectionError(QAbstractSocket::SocketError /* socketError */)
 
 void Client::removeConnection(Connection *connection)
 {
-    if (peers.contains(connection->peerAddress())) {
-        peers.remove(connection->peerAddress());
+    if (peers.remove(connection->peerAddress(), connection) > 0) {
         QString nick = connection->name();
         if (!nick.isEmpty())
             emit participantLeft(nick);
diff --git a/examples/network/network-chat/client.h b/examples/network/network-chat/client.h
index 5d55bf53..55abd84c 100644
--- a/examples/network/network-chat/client.h
+++ b/examples/network/network-chat/client.h
@@ -4,12 +4,12 @@
 #ifndef CLIENT_H
 #define CLIENT_H
 
+#include "server.h"
+
 #include <QAbstractSocket>
 #include <QHash>
 #include <QHostAddress>
 
-#include "server.h"
-
 class PeerManager;
 
 class Client : public QObject
diff --git a/examples/network/network-chat/connection.cpp b/examples/network/network-chat/connection.cpp
index d89266a5..414faa80 100644
--- a/examples/network/network-chat/connection.cpp
+++ b/examples/network/network-chat/connection.cpp
@@ -4,7 +4,7 @@
 
 #include "connection.h"
 
-#include <QtNetwork>
+#include <QTimerEvent>
 
 static const int TransferTimeout = 30 * 1000;
 static const int PongTimeout = 60 * 1000;
@@ -27,12 +27,6 @@ static const int PingInterval = 5 * 1000;
 Connection::Connection(QObject *parent)
     : QTcpSocket(parent), writer(this)
 {
-    greetingMessage = tr("undefined");
-    username = tr("unknown");
-    state = WaitingForGreeting;
-    currentDataType = Undefined;
-    transferTimerId = -1;
-    isGreetingMessageSent = false;
     pingTimer.setInterval(PingInterval);
 
     connect(this, &QTcpSocket::readyRead, this,
diff --git a/examples/network/network-chat/connection.h b/examples/network/network-chat/connection.h
index a3082247..77c116cf 100644
--- a/examples/network/network-chat/connection.h
+++ b/examples/network/network-chat/connection.h
@@ -32,8 +32,8 @@ public:
         Undefined
     };
 
-    Connection(QObject *parent = nullptr);
-    Connection(qintptr socketDescriptor, QObject *parent = nullptr);
+    explicit Connection(QObject *parent = nullptr);
+    explicit Connection(qintptr socketDescriptor, QObject *parent = nullptr);
     ~Connection();
 
     QString name() const;
@@ -59,15 +59,15 @@ private:
 
     QCborStreamReader reader;
     QCborStreamWriter writer;
-    QString greetingMessage;
-    QString username;
+    QString greetingMessage = tr("undefined");
+    QString username = tr("unknown");
     QTimer pingTimer;
     QElapsedTimer pongTime;
     QString buffer;
-    ConnectionState state;
-    DataType currentDataType;
-    int transferTimerId;
-    bool isGreetingMessageSent;
+    ConnectionState state = WaitingForGreeting;
+    DataType currentDataType = Undefined;
+    int transferTimerId = -1;
+    bool isGreetingMessageSent = false;
 };
 
 #endif
diff --git a/examples/network/network-chat/main.cpp b/examples/network/network-chat/main.cpp
index bc6c4ef6..5d679d28 100644
--- a/examples/network/network-chat/main.cpp
+++ b/examples/network/network-chat/main.cpp
@@ -1,11 +1,9 @@
 // Copyright (C) 2016 The Qt Company Ltd.
 // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
 
-#include <QApplication>
-
 #include "chatdialog.h"
 
-#include <QtCore/QSettings>
+#include <QtWidgets/QApplication>
 
 int main(int argc, char *argv[])
 {
diff --git a/examples/network/network-chat/network-chat.pro b/examples/network/network-chat/network-chat.pro
index 2e3cbbc4..626a7109 100644
--- a/examples/network/network-chat/network-chat.pro
+++ b/examples/network/network-chat/network-chat.pro
@@ -11,6 +11,7 @@ SOURCES       = chatdialog.cpp \
                 server.cpp
 FORMS         = chatdialog.ui
 QT           += network widgets
+DEFINES      += QT_USE_QSTRINGBUILDER
 requires(qtConfig(udpsocket))
 requires(qtConfig(listwidget))
 
diff --git a/examples/network/network-chat/peermanager.cpp b/examples/network/network-chat/peermanager.cpp
index 45587404..da4210d8 100644
--- a/examples/network/network-chat/peermanager.cpp
+++ b/examples/network/network-chat/peermanager.cpp
@@ -2,20 +2,18 @@
 // Copyright (C) 2018 Intel Corporation.
 // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
 
-#include <QtNetwork>
-
 #include "client.h"
 #include "connection.h"
 #include "peermanager.h"
 
+#include <QNetworkInterface>
+
 static const qint32 BroadcastInterval = 2000;
 static const unsigned broadcastPort = 45000;
 
 PeerManager::PeerManager(Client *client)
-    : QObject(client)
+    : QObject(client), client(client)
 {
-    this->client = client;
-
     static const char *envVariables[] = {
         "USERNAME", "USER", "USERDOMAIN", "HOSTNAME", "DOMAINNAME"
     };
@@ -30,7 +28,6 @@ PeerManager::PeerManager(Client *client)
         username = "unknown";
 
     updateAddresses();
-    serverPort = 0;
 
     broadcastSocket.bind(QHostAddress::Any, broadcastPort, QUdpSocket::ShareAddress
                          | QUdpSocket::ReuseAddressHint);
@@ -59,11 +56,7 @@ void PeerManager::startBroadcasting()
 
 bool PeerManager::isLocalHostAddress(const QHostAddress &address) const
 {
-    for (const QHostAddress &localAddress : ipAddresses) {
-        if (address.isEqual(localAddress))
-            return true;
-    }
-    return false;
+    return ipAddresses.contains(address);
 }
 
 void PeerManager::sendBroadcastDatagram()
@@ -79,8 +72,7 @@ void PeerManager::sendBroadcastDatagram()
 
     bool validBroadcastAddresses = true;
     for (const QHostAddress &address : std::as_const(broadcastAddresses)) {
-        if (broadcastSocket.writeDatagram(datagram, address,
-                                          broadcastPort) == -1)
+        if (broadcastSocket.writeDatagram(datagram, address, broadcastPort) == -1)
             validBroadcastAddresses = false;
     }
 
diff --git a/examples/network/network-chat/peermanager.h b/examples/network/network-chat/peermanager.h
index b9ea8053..dadabd88 100644
--- a/examples/network/network-chat/peermanager.h
+++ b/examples/network/network-chat/peermanager.h
@@ -18,7 +18,7 @@ class PeerManager : public QObject
     Q_OBJECT
 
 public:
-    PeerManager(Client *client);
+    explicit PeerManager(Client *client);
 
     void setServerPort(int port);
     QString userName() const;
@@ -35,13 +35,13 @@ private slots:
 private:
     void updateAddresses();
 
-    Client *client;
+    Client *client = nullptr;
     QList<QHostAddress> broadcastAddresses;
     QList<QHostAddress> ipAddresses;
     QUdpSocket broadcastSocket;
     QTimer broadcastTimer;
     QString username;
-    int serverPort;
+    int serverPort = 0;
 };
 
 #endif
diff --git a/examples/network/network-chat/server.cpp b/examples/network/network-chat/server.cpp
index 1537cbb0..afc96717 100644
--- a/examples/network/network-chat/server.cpp
+++ b/examples/network/network-chat/server.cpp
@@ -1,8 +1,6 @@
 // Copyright (C) 2016 The Qt Company Ltd.
 // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
 
-#include <QtNetwork>
-
 #include "connection.h"
 #include "server.h"
 
diff --git a/examples/network/network-chat/server.h b/examples/network/network-chat/server.h
index f41ffeba..0557de30 100644
--- a/examples/network/network-chat/server.h
+++ b/examples/network/network-chat/server.h
@@ -13,7 +13,7 @@ class Server : public QTcpServer
     Q_OBJECT
 
 public:
-    Server(QObject *parent = nullptr);
+    explicit Server(QObject *parent = nullptr);
 
 signals:
     void newConnection(Connection *connection);
diff --git a/examples/network/rsslisting/doc/src/rsslisting.qdoc b/examples/network/rsslisting/doc/src/rsslisting.qdoc
index a1e91932..260d2681 100644
--- a/examples/network/rsslisting/doc/src/rsslisting.qdoc
+++ b/examples/network/rsslisting/doc/src/rsslisting.qdoc
@@ -2,7 +2,7 @@
 // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GFDL-1.3-no-invariants-only
 
 /*!
-    \example rsslisting
+    \example serialization/rsslisting
     \examplecategory {Networking}
     \meta tag {serialization}
     \title A minimal RSS listing application
@@ -31,11 +31,11 @@
     former. For the sake of illustration, it gives the widget the Qt blog's URL
     as default value for the resource to check.
 
-    \snippet rsslisting/main.cpp 0
+    \snippet serialization/rsslisting/main.cpp 0
 
     \section1 The RSSListing class
 
-    \snippet rsslisting/rsslisting.h 0
+    \snippet serialization/rsslisting/rsslisting.h 0
 
     The widget itself provides a simple user interface for specifying the URL to
     fetch and, once available updates are displayed, controlling the downloading
@@ -51,7 +51,7 @@
 
     \section2 Construction
 
-    \snippet rsslisting/rsslisting.cpp setup
+    \snippet serialization/rsslisting/rsslisting.cpp setup
 
     The constructor sets up the assorted components of the widget and connects
     their various signals to the slots it shall use to handle them.
@@ -69,7 +69,7 @@
 
     \section2 The slots
 
-    \snippet rsslisting/rsslisting.cpp slots
+    \snippet serialization/rsslisting/rsslisting.cpp slots
 
     All slots are kept simple by delegating any hard work to private methods.
 
@@ -94,7 +94,7 @@
 
     \section2 The get() method
 
-    \snippet rsslisting/rsslisting.cpp get
+    \snippet serialization/rsslisting/rsslisting.cpp get
 
     The private \c get() method is used by the \c fetch() slot to initiate an
     HTTP GET request. It first clears the XML stream reader and, if a reply is
@@ -106,7 +106,7 @@
 
     \section2 The parseXml() method
 
-    \snippet rsslisting/rsslisting.cpp parse
+    \snippet serialization/rsslisting/rsslisting.cpp parse
 
     When data is received, and thus made available to the XML stream reader, \c
     parseXml() reads from the XML stream, checking for \c item elements and,
diff --git a/examples/network/secureudpclient/mainwindow.cpp b/examples/network/secureudpclient/mainwindow.cpp
index 8b9ac24c..987eb739 100644
--- a/examples/network/secureudpclient/mainwindow.cpp
+++ b/examples/network/secureudpclient/mainwindow.cpp
@@ -83,7 +83,7 @@ void MainWindow::on_connectButton_clicked()
         return startNewConnection(remoteAddress);
 
     addInfoMessage(tr("Looking up the host ..."));
-    lookupId = QHostInfo::lookupHost(hostName, this, SLOT(lookupFinished(QHostInfo)));
+    lookupId = QHostInfo::lookupHost(hostName, this, &MainWindow::lookupFinished);
     updateUi();
 }
 
diff --git a/examples/network/torrent/ratecontroller.cpp b/examples/network/torrent/ratecontroller.cpp
index c5e33ab6..338bb596 100644
--- a/examples/network/torrent/ratecontroller.cpp
+++ b/examples/network/torrent/ratecontroller.cpp
@@ -42,7 +42,7 @@ void RateController::scheduleTransfer()
     if (transferScheduled)
         return;
     transferScheduled = true;
-    QTimer::singleShot(50, this, SLOT(transfer()));
+    QTimer::singleShot(50, this, &RateController::transfer);
 }
 
 void RateController::transfer()
diff --git a/examples/network/torrent/trackerclient.cpp b/examples/network/torrent/trackerclient.cpp
index a2ef2bb6..12110ba0 100644
--- a/examples/network/torrent/trackerclient.cpp
+++ b/examples/network/torrent/trackerclient.cpp
@@ -20,7 +20,7 @@ TrackerClient::TrackerClient(TorrentClient *downloader, QObject *parent)
 void TrackerClient::start(const MetaInfo &info)
 {
     metaInfo = info;
-    QTimer::singleShot(0, this, SLOT(fetchPeerList()));
+    QTimer::singleShot(0, this, &TrackerClient::fetchPeerList);
 
     if (metaInfo.fileForm() == MetaInfo::SingleFileForm) {
         length = metaInfo.singleFile().length;
diff --git a/examples/qmake/precompile/main.cpp b/examples/qmake/precompile/main.cpp
index ece87dcc..58050df6 100644
--- a/examples/qmake/precompile/main.cpp
+++ b/examples/qmake/precompile/main.cpp
@@ -15,7 +15,8 @@ int main(int argc, char **argv)
     MyObject obj;
     MyDialog dialog;
 
-    dialog.connect(dialog.aButton, SIGNAL(clicked()), SLOT(close()));
+    QObject::connect(dialog.aButton, &QPushButton::clicked,
+                     &dialog, &MyDialog::close);
     dialog.show();
 
     return app.exec();
diff --git a/examples/widgets/doc/src/calendarwidget.qdoc b/examples/widgets/doc/src/calendarwidget.qdoc
index 898f4bbd..01c6df69 100644
--- a/examples/widgets/doc/src/calendarwidget.qdoc
+++ b/examples/widgets/doc/src/calendarwidget.qdoc
@@ -3,7 +3,7 @@
 
 /*!
     \title Calendar Widget Example
-    \examplecategory {Graphics & Multimedia}
+    \examplecategory {User Interface Components}
     \example widgets/calendarwidget
     \ingroup examples-widgets
     \ingroup examples-layout
diff --git a/examples/widgets/doc/src/elasticnodes.qdoc b/examples/widgets/doc/src/elasticnodes.qdoc
index 14ea63ef..10062ff0 100644
--- a/examples/widgets/doc/src/elasticnodes.qdoc
+++ b/examples/widgets/doc/src/elasticnodes.qdoc
@@ -236,7 +236,7 @@
     This ensures that the edge items are not considered for mouse input at all
     (i.e., you cannot click the edges). Then, the source and destination
     pointers are updated, this edge is registered with each node, and we call
-    \c adjust() to update this edge's start end end position.
+    \c adjust() to update this edge's start and end position.
 
     \snippet graphicsview/elasticnodes/edge.cpp 1
 
diff --git a/examples/widgets/graphicsview/diagramscene/mainwindow.cpp b/examples/widgets/graphicsview/diagramscene/mainwindow.cpp
index d6a389af..7588e437 100644
--- a/examples/widgets/graphicsview/diagramscene/mainwindow.cpp
+++ b/examples/widgets/graphicsview/diagramscene/mainwindow.cpp
@@ -432,7 +432,7 @@ void MainWindow::createToolbars()
 
     fontColorToolButton = new QToolButton;
     fontColorToolButton->setPopupMode(QToolButton::MenuButtonPopup);
-    fontColorToolButton->setMenu(createColorMenu(SLOT(textColorChanged()), Qt::black));
+    fontColorToolButton->setMenu(createColorMenu(&MainWindow::textColorChanged, Qt::black));
     textAction = fontColorToolButton->menu()->defaultAction();
     fontColorToolButton->setIcon(createColorToolButtonIcon(":/images/textpointer.png", Qt::black));
     fontColorToolButton->setAutoFillBackground(true);
@@ -442,7 +442,7 @@ void MainWindow::createToolbars()
 //! [26]
     fillColorToolButton = new QToolButton;
     fillColorToolButton->setPopupMode(QToolButton::MenuButtonPopup);
-    fillColorToolButton->setMenu(createColorMenu(SLOT(itemColorChanged()), Qt::white));
+    fillColorToolButton->setMenu(createColorMenu(&MainWindow::itemColorChanged, Qt::white));
     fillAction = fillColorToolButton->menu()->defaultAction();
     fillColorToolButton->setIcon(createColorToolButtonIcon(
                                      ":/images/floodfill.png", Qt::white));
@@ -452,7 +452,7 @@ void MainWindow::createToolbars()
 
     lineColorToolButton = new QToolButton;
     lineColorToolButton->setPopupMode(QToolButton::MenuButtonPopup);
-    lineColorToolButton->setMenu(createColorMenu(SLOT(lineColorChanged()), Qt::black));
+    lineColorToolButton->setMenu(createColorMenu(&MainWindow::lineColorChanged, Qt::black));
     lineAction = lineColorToolButton->menu()->defaultAction();
     lineColorToolButton->setIcon(createColorToolButtonIcon(
                                      ":/images/linecolor.png", Qt::black));
@@ -547,7 +547,8 @@ QWidget *MainWindow::createCellWidget(const QString &text, DiagramItem::DiagramT
 //! [29]
 
 //! [30]
-QMenu *MainWindow::createColorMenu(const char *slot, QColor defaultColor)
+template<typename PointerToMemberFunction>
+QMenu *MainWindow::createColorMenu(const PointerToMemberFunction &slot, QColor defaultColor)
 {
     QList<QColor> colors;
     colors << Qt::black << Qt::white << Qt::red << Qt::blue << Qt::yellow;
@@ -560,7 +561,7 @@ QMenu *MainWindow::createColorMenu(const char *slot, QColor defaultColor)
         QAction *action = new QAction(names.at(i), this);
         action->setData(colors.at(i));
         action->setIcon(createColorIcon(colors.at(i)));
-        connect(action, SIGNAL(triggered()), this, slot);
+        connect(action, &QAction::triggered, this, slot);
         colorMenu->addAction(action);
         if (colors.at(i) == defaultColor)
             colorMenu->setDefaultAction(action);
diff --git a/examples/widgets/graphicsview/diagramscene/mainwindow.h b/examples/widgets/graphicsview/diagramscene/mainwindow.h
index 34f98f65..fe8a9190 100644
--- a/examples/widgets/graphicsview/diagramscene/mainwindow.h
+++ b/examples/widgets/graphicsview/diagramscene/mainwindow.h
@@ -64,7 +64,9 @@ private:
                                         const QString &image);
     QWidget *createCellWidget(const QString &text,
                               DiagramItem::DiagramType type);
-    QMenu *createColorMenu(const char *slot, QColor defaultColor);
+
+    template<typename PointerToMemberFunction>
+    QMenu *createColorMenu(const PointerToMemberFunction &slot, QColor defaultColor);
     QIcon createColorToolButtonIcon(const QString &image, QColor color);
     QIcon createColorIcon(QColor color);
 
diff --git a/examples/widgets/painting/pathstroke/pathstroke.cpp b/examples/widgets/painting/pathstroke/pathstroke.cpp
index 9bec5623..8c0548bd 100644
--- a/examples/widgets/painting/pathstroke/pathstroke.cpp
+++ b/examples/widgets/painting/pathstroke/pathstroke.cpp
@@ -341,7 +341,7 @@ PathStrokeWidget::PathStrokeWidget(bool smallScreen)
 
     connect(m_renderer, &PathStrokeRenderer::clicked, this, &PathStrokeWidget::showControls);
     connect(m_controls, &PathStrokeControls::okPressed, this, &PathStrokeWidget::hideControls);
-    connect(m_controls, SIGNAL(quitPressed()), QApplication::instance(), SLOT(quit()));
+    connect(m_controls, &PathStrokeControls::quitPressed, QApplication::instance(), &QApplication::quit);
 }
 
 void PathStrokeWidget::showControls()
diff --git a/examples/widgets/tools/settingseditor/locationdialog.cpp b/examples/widgets/tools/settingseditor/locationdialog.cpp
index cef83c0e..1c41d450 100644
--- a/examples/widgets/tools/settingseditor/locationdialog.cpp
+++ b/examples/widgets/tools/settingseditor/locationdialog.cpp
@@ -33,7 +33,6 @@ LocationDialog::LocationDialog(QWidget *parent)
     applicationComboBox = new QComboBox;
     applicationComboBox->addItem(tr("Any"));
     applicationComboBox->addItem(tr("Qt Creator"));
-    applicationComboBox->addItem(tr("Application Example"));
     applicationComboBox->addItem(tr("Assistant"));
     applicationComboBox->addItem(tr("Designer"));
     applicationComboBox->addItem(tr("Linguist"));
diff --git a/examples/widgets/widgets/calculator/calculator.cpp b/examples/widgets/widgets/calculator/calculator.cpp
index 5858d304..073b10f9 100644
--- a/examples/widgets/widgets/calculator/calculator.cpp
+++ b/examples/widgets/widgets/calculator/calculator.cpp
@@ -29,29 +29,29 @@ Calculator::Calculator(QWidget *parent)
 
 //! [4]
     for (int i = 0; i < NumDigitButtons; ++i)
-        digitButtons[i] = createButton(QString::number(i), SLOT(digitClicked()));
+        digitButtons[i] = createButton(QString::number(i), &Calculator::digitClicked);
 
-    Button *pointButton = createButton(tr("."), SLOT(pointClicked()));
-    Button *changeSignButton = createButton(tr("\302\261"), SLOT(changeSignClicked()));
+    Button *pointButton = createButton(tr("."), &Calculator::pointClicked);
+    Button *changeSignButton = createButton(tr("\302\261"), &Calculator::changeSignClicked);
 
-    Button *backspaceButton = createButton(tr("Backspace"), SLOT(backspaceClicked()));
-    Button *clearButton = createButton(tr("Clear"), SLOT(clear()));
-    Button *clearAllButton = createButton(tr("Clear All"), SLOT(clearAll()));
+    Button *backspaceButton = createButton(tr("Backspace"), &Calculator::backspaceClicked);
+    Button *clearButton = createButton(tr("Clear"), &Calculator::clear);
+    Button *clearAllButton = createButton(tr("Clear All"), &Calculator::clearAll);
 
-    Button *clearMemoryButton = createButton(tr("MC"), SLOT(clearMemory()));
-    Button *readMemoryButton = createButton(tr("MR"), SLOT(readMemory()));
-    Button *setMemoryButton = createButton(tr("MS"), SLOT(setMemory()));
-    Button *addToMemoryButton = createButton(tr("M+"), SLOT(addToMemory()));
+    Button *clearMemoryButton = createButton(tr("MC"), &Calculator::clearMemory);
+    Button *readMemoryButton = createButton(tr("MR"), &Calculator::readMemory);
+    Button *setMemoryButton = createButton(tr("MS"), &Calculator::setMemory);
+    Button *addToMemoryButton = createButton(tr("M+"), &Calculator::addToMemory);
 
-    Button *divisionButton = createButton(tr("\303\267"), SLOT(multiplicativeOperatorClicked()));
-    Button *timesButton = createButton(tr("\303\227"), SLOT(multiplicativeOperatorClicked()));
-    Button *minusButton = createButton(tr("-"), SLOT(additiveOperatorClicked()));
-    Button *plusButton = createButton(tr("+"), SLOT(additiveOperatorClicked()));
+    Button *divisionButton = createButton(tr("\303\267"), &Calculator::multiplicativeOperatorClicked);
+    Button *timesButton = createButton(tr("\303\227"), &Calculator::multiplicativeOperatorClicked);
+    Button *minusButton = createButton(tr("-"), &Calculator::additiveOperatorClicked);
+    Button *plusButton = createButton(tr("+"), &Calculator::additiveOperatorClicked);
 
-    Button *squareRootButton = createButton(tr("Sqrt"), SLOT(unaryOperatorClicked()));
-    Button *powerButton = createButton(tr("x\302\262"), SLOT(unaryOperatorClicked()));
-    Button *reciprocalButton = createButton(tr("1/x"), SLOT(unaryOperatorClicked()));
-    Button *equalButton = createButton(tr("="), SLOT(equalClicked()));
+    Button *squareRootButton = createButton(tr("Sqrt"), &Calculator::unaryOperatorClicked);
+    Button *powerButton = createButton(tr("x\302\262"), &Calculator::unaryOperatorClicked);
+    Button *reciprocalButton = createButton(tr("1/x"), &Calculator::unaryOperatorClicked);
+    Button *equalButton = createButton(tr("="), &Calculator::equalClicked);
 //! [4]
 
 //! [5]
@@ -324,10 +324,11 @@ void Calculator::addToMemory()
 }
 //! [32]
 //! [34]
-Button *Calculator::createButton(const QString &text, const char *member)
+template<typename PointerToMemberFunction>
+Button *Calculator::createButton(const QString &text, const PointerToMemberFunction &member)
 {
     Button *button = new Button(text);
-    connect(button, SIGNAL(clicked()), this, member);
+    connect(button, &Button::clicked, this, member);
     return button;
 }
 //! [34]
diff --git a/examples/widgets/widgets/calculator/calculator.h b/examples/widgets/widgets/calculator/calculator.h
index d4fa1129..42e9ac53 100644
--- a/examples/widgets/widgets/calculator/calculator.h
+++ b/examples/widgets/widgets/calculator/calculator.h
@@ -39,7 +39,8 @@ private slots:
 //! [1]
 private:
 //! [1] //! [2]
-    Button *createButton(const QString &text, const char *member);
+    template<typename PointerToMemberFunction>
+    Button *createButton(const QString &text, const PointerToMemberFunction &member);
     void abortOperation();
     bool calculate(double rightOperand, const QString &pendingOperator);
 //! [2]
diff --git a/examples/widgets/widgets/tooltips/sortingbox.cpp b/examples/widgets/widgets/tooltips/sortingbox.cpp
index 1eb745e7..ee588eea 100644
--- a/examples/widgets/widgets/tooltips/sortingbox.cpp
+++ b/examples/widgets/widgets/tooltips/sortingbox.cpp
@@ -26,15 +26,15 @@ SortingBox::SortingBox(QWidget *parent)
 //! [3]
     newCircleButton = createToolButton(tr("New Circle"),
                                        QIcon(":/images/circle.png"),
-                                       SLOT(createNewCircle()));
+                                       &SortingBox::createNewCircle);
 
     newSquareButton = createToolButton(tr("New Square"),
                                        QIcon(":/images/square.png"),
-                                       SLOT(createNewSquare()));
+                                       &SortingBox::createNewSquare);
 
     newTriangleButton = createToolButton(tr("New Triangle"),
                                          QIcon(":/images/triangle.png"),
-                                         SLOT(createNewTriangle()));
+                                         &SortingBox::createNewTriangle);
 
     circlePath.addEllipse(QRect(0, 0, 100, 100));
     squarePath.addRect(QRect(0, 0, 100, 100));
@@ -226,14 +226,15 @@ void SortingBox::createShapeItem(const QPainterPath &path,
 //! [21]
 
 //! [22]
+template<typename PointerToMemberFunction>
 QToolButton *SortingBox::createToolButton(const QString &toolTip,
-                                          const QIcon &icon, const char *member)
+                                          const QIcon &icon, const PointerToMemberFunction &member)
 {
     QToolButton *button = new QToolButton(this);
     button->setToolTip(toolTip);
     button->setIcon(icon);
     button->setIconSize(QSize(32, 32));
-    connect(button, SIGNAL(clicked()), this, member);
+    connect(button, &QToolButton::clicked, this, member);
 
     return button;
 }
diff --git a/examples/widgets/widgets/tooltips/sortingbox.h b/examples/widgets/widgets/tooltips/sortingbox.h
index 935db0d2..9f34cf7a 100644
--- a/examples/widgets/widgets/tooltips/sortingbox.h
+++ b/examples/widgets/widgets/tooltips/sortingbox.h
@@ -48,9 +48,10 @@ private:
     QPoint randomItemPosition();
     QColor initialItemColor();
     QColor randomItemColor();
+    template<typename PointerToMemberFunction>
     QToolButton *createToolButton(const QString &toolTip, const QIcon &icon,
 //! [1]
-                                  const char *member);
+                                  const PointerToMemberFunction &member);
 
 //! [2]
     QList<ShapeItem *> shapeItems;
diff --git a/mkspecs/common/wasm/wasm.conf b/mkspecs/common/wasm/wasm.conf
index 6fb1fb6e..b67d7213 100644
--- a/mkspecs/common/wasm/wasm.conf
+++ b/mkspecs/common/wasm/wasm.conf
@@ -36,7 +36,8 @@ EMCC_COMMON_LFLAGS += \
     -s FETCH=1 \
     -s MODULARIZE=1 \
     -s EXPORT_NAME=createQtAppInstance \
-    -s WASM_BIGINT=1
+    -s WASM_BIGINT=1 \
+    -s STACK_SIZE=5MB
 
 # The -s arguments can also be used with release builds,
 # but are here in debug for clarity.
diff --git a/mkspecs/devices/integrity-armv8-SA8155P/qmake.conf b/mkspecs/devices/integrity-armv8-SA8155P/qmake.conf
index 42e4fe3c..f1696e36 100644
--- a/mkspecs/devices/integrity-armv8-SA8155P/qmake.conf
+++ b/mkspecs/devices/integrity-armv8-SA8155P/qmake.conf
@@ -6,7 +6,7 @@ load(device_config)
 
 include(../../common/ghs-integrity-armv8.conf)
 
-QMAKE_CFLAGS             = --signed_fields --no_commons --diag_suppress=1,82,228,236,381,611,961,997,1795,1931,1974,3148 --defer_parse_function_templates --exceptions
+QMAKE_CFLAGS             = --signed_fields --no_commons --diag_suppress=1,82,228,236,381,611,961,997,1795,1931,1974,3148,1721,1424,193,940,620,111,128,185,826,186,68,830,177,554,550,175,1441,546 --defer_parse_function_templates --exceptions
 QMAKE_CXXFLAGS           = $$QMAKE_CFLAGS --no_implicit_include --link_once_templates -non_shared --new_outside_of_constructor --c++17
 QMAKE_LFLAGS            += --thread_local_storage --exceptions
 
diff --git a/mkspecs/features/mac/default_post.prf b/mkspecs/features/mac/default_post.prf
index 4acf3b19..f3647167 100644
--- a/mkspecs/features/mac/default_post.prf
+++ b/mkspecs/features/mac/default_post.prf
@@ -50,29 +50,6 @@ contains(TEMPLATE, .*app) {
 
 !no_objective_c:CONFIG += objective_c
 
-qt {
-    qtConfig(static) {
-        # C++11 support means using libc++ instead of libstd++. As the
-        # two libraries are incompatible we need to ensure the end user
-        # project is built using the same C++11 support/no support as Qt.
-        qtConfig(c++11) {
-            CONFIG += c++11
-        } else: c++11 {
-            warning("Qt was not built with C++11 enabled, disabling feature")
-            CONFIG -= c++11
-        }
-
-        !c++11 {
-            # Explicitly use libstdc++ if C++11 support is not enabled,
-            # as otherwise the compiler will choose the standard library
-            # based on the deployment target, which for iOS 7 and OS X 10.9
-            # is libc++, and we can't mix and match the two.
-            QMAKE_CXXFLAGS += -stdlib=libstdc++
-            QMAKE_LFLAGS   += -stdlib=libstdc++
-        }
-    }
-}
-
 # Add the same default rpaths as Xcode does for new projects.
 # This is especially important for iOS/tvOS/watchOS where no other option is possible.
 !no_default_rpath {
diff --git a/mkspecs/features/qt.prf b/mkspecs/features/qt.prf
index 114c729f..d6a87b75 100644
--- a/mkspecs/features/qt.prf
+++ b/mkspecs/features/qt.prf
@@ -2,6 +2,9 @@
 # due to required Qt modules being missing.
 !isEmpty(QMAKE_FAILED_REQUIREMENTS): return()
 
+# hardcoded defaults
+QT_CONFIG *= c99 c11 c++11 c++14 c++1z c++17
+
 qtConfig(thread): CONFIG *= thread
 
 #handle defines
diff --git a/mkspecs/features/wasm/emcc_ver.prf b/mkspecs/features/wasm/emcc_ver.prf
index 9d042df3..160ae639 100644
--- a/mkspecs/features/wasm/emcc_ver.prf
+++ b/mkspecs/features/wasm/emcc_ver.prf
@@ -1,5 +1,5 @@
 defineReplace(qtEmccRecommendedVersion) {
-    return (3.1.25)
+    return (3.1.37)
 }
 
 defineReplace(qtSystemEmccVersion) {
diff --git a/mkspecs/features/wasm/wasm.prf b/mkspecs/features/wasm/wasm.prf
index 12230143..018ca904 100644
--- a/mkspecs/features/wasm/wasm.prf
+++ b/mkspecs/features/wasm/wasm.prf
@@ -9,9 +9,9 @@ exists($$QMAKE_QT_CONFIG) {
 
     ## qmake puts a space if done otherwise
     !isEmpty(QT_WASM_EXTRA_EXPORTED_METHODS): {
-        EXPORTED_METHODS = UTF16ToString,stringToUTF16,JSEvents,specialHTMLTargets,$$QT_WASM_EXTRA_EXPORTED_METHODS
+        EXPORTED_METHODS = UTF16ToString,stringToUTF16,JSEvents,specialHTMLTargets,FS,$$QT_WASM_EXTRA_EXPORTED_METHODS
     } else {
-        EXPORTED_METHODS = UTF16ToString,stringToUTF16,JSEvents,specialHTMLTargets
+        EXPORTED_METHODS = UTF16ToString,stringToUTF16,JSEvents,specialHTMLTargets,FS
     }
     EMCC_LFLAGS += -s EXPORTED_RUNTIME_METHODS=$$EXPORTED_METHODS
 
@@ -47,6 +47,17 @@ exists($$QMAKE_QT_CONFIG) {
         QMAKE_LFLAGS_DEBUG += -msimd128 -msse -msse2
     }
 
+    qtConfig(shared) {
+        contains(TEMPLATE, .*app) {
+            EMCC_MODULE_FLAGS = -s MAIN_MODULE=1
+        }
+        contains(TEMPLATE, .*lib):!static: {
+            EMCC_MODULE_FLAGS = -s SIDE_MODULE=1
+        }
+        EMCC_CFLAGS += $$EMCC_MODULE_FLAGS
+        EMCC_LFLAGS += $$EMCC_MODULE_FLAGS
+    }
+
     QMAKE_LFLAGS       += $$EMCC_LFLAGS
     QMAKE_LFLAGS_DEBUG += $$EMCC_LFLAGS
     QMAKE_CFLAGS += $$EMCC_CFLAGS
@@ -81,11 +92,16 @@ contains(TEMPLATE, .*app) {
         WASM_PLUGIN_PATH = $$PWD/../../../src/plugins/platforms/wasm
     }
 
+    PRELOAD = ""
+    shared {
+        PRELOAD = "preload:\ ['qt_plugins.json',\ 'qt_qml_imports.json'],"
+    }
+
     # Copy/Generate main .html file (e.g. myapp.html) from the webassembly_shell.html by
     # replacing the app name placeholder with the actual app name.
     apphtml.name = application main html file
     apphtml.output = $$DESTDIR/$$TARGET_HTML
-    apphtml.commands = $$QMAKE_STREAM_EDITOR -e s/@APPNAME@/$$TARGET_BASE/g $$WASM_PLUGIN_PATH/wasm_shell.html > $$DESTDIR/$$TARGET_HTML
+    apphtml.commands = $$QMAKE_STREAM_EDITOR -e s/@APPNAME@/$$TARGET_BASE/g -e s/@PRELOAD@/$$PRELOAD/g $$WASM_PLUGIN_PATH/wasm_shell.html > $$DESTDIR/$$TARGET_HTML
     apphtml.input = $$WASM_PLUGIN_PATH/wasm_shell.html
     apphtml.depends = $$apphtml.input
     QMAKE_EXTRA_COMPILERS += apphtml
diff --git a/qmake/CMakeLists.txt b/qmake/CMakeLists.txt
index d3e8f56a..41bf2c77 100644
--- a/qmake/CMakeLists.txt
+++ b/qmake/CMakeLists.txt
@@ -118,7 +118,6 @@ qt_internal_extend_target(${target_name} CONDITION MACOS
         "-fconstant-cfstrings"
 )
 
-# special case big
 qt_internal_extend_target(${target_name} CONDITION WIN32
     SOURCES
         library/registry.cpp
@@ -132,18 +131,15 @@ qt_internal_extend_target(${target_name} CONDITION CLANG AND WIN32
         "-Wno-microsoft-enum-value"
 )
 
-# special case:
 set_target_properties(${target_name} PROPERTIES
     AUTOMOC OFF
     AUTORCC OFF
     AUTOUIC OFF
 )
 
-qt_internal_apply_gc_binaries(${target_name} PRIVATE) # special case
-qt_skip_warnings_are_errors(${target_name}) # special case
+qt_internal_apply_gc_binaries(${target_name} PRIVATE)
+qt_skip_warnings_are_errors(${target_name})
 
-# special case begin
 qt_internal_add_docs(${target_name}
     doc/qmake.qdocconf
 )
-# special case end
diff --git a/qt_cmdline.cmake b/qt_cmdline.cmake
index 372e6873..28e8bcc3 100644
--- a/qt_cmdline.cmake
+++ b/qt_cmdline.cmake
@@ -46,6 +46,7 @@ qt_commandline_option(c++std TYPE cxxstd)
 qt_commandline_option(unity-build TYPE boolean NAME unity_build)
 qt_commandline_option(unity-build-batch-size TYPE string NAME unity_build_batch_size)
 qt_commandline_option(ccache TYPE boolean NAME ccache)
+qt_commandline_option(vcpkg TYPE boolean)
 qt_commandline_option(commercial TYPE void)
 qt_commandline_option(confirm-license TYPE void)
 qt_commandline_option(dbus TYPE optionalString VALUES no yes linked runtime)
@@ -63,7 +64,6 @@ qt_commandline_option(force-pkg-config TYPE void NAME pkg-config)
 qt_commandline_option(framework TYPE boolean)
 qt_commandline_option(gc-binaries TYPE boolean NAME gc_binaries)
 qt_commandline_option(gdb-index TYPE boolean NAME enable_gdb_index)
-qt_commandline_option(gcc-sysroot TYPE boolean)
 qt_commandline_option(gcov TYPE boolean)
 qt_commandline_option(gnumake TYPE boolean NAME GNUmake)
 qt_commandline_option(gui TYPE boolean)
@@ -76,16 +76,13 @@ qt_commandline_option(openssl-runtime TYPE void NAME openssl VALUE runtime)
 qt_commandline_option(linker TYPE optionalString VALUES bfd gold lld mold)
 qt_commandline_option(ltcg TYPE boolean)
 qt_commandline_option(intelcet TYPE boolean)
-# special case begin
 qt_commandline_option(make TYPE addString VALUES examples libs tests tools
                       benchmarks manual-tests minimal-static-tests)
-# special case end
-qt_commandline_option(make-tool TYPE string)
+qt_commandline_option(install-examples-sources TYPE boolean)
 qt_commandline_option(mips_dsp TYPE boolean)
 qt_commandline_option(mips_dspr2 TYPE boolean)
-qt_commandline_option(mp TYPE boolean NAME msvc_mp)
 qt_commandline_option(nomake TYPE addString VALUES examples tests tools benchmarks
-                      manual-tests minimal-static-tests) # special case
+                      manual-tests minimal-static-tests)
 qt_commandline_option(opensource TYPE void NAME commercial VALUE no)
 qt_commandline_option(optimize-debug TYPE boolean NAME optimize_debug)
 qt_commandline_option(optimize-size TYPE boolean NAME optimize_size)
diff --git a/src/3rdparty/D3D12MemoryAllocator/D3D12MemAlloc.cpp b/src/3rdparty/D3D12MemoryAllocator/D3D12MemAlloc.cpp
new file mode 100644
index 00000000..248ec409
--- /dev/null
+++ b/src/3rdparty/D3D12MemoryAllocator/D3D12MemAlloc.cpp
@@ -0,0 +1,10565 @@
+//
+// Copyright (c) 2019-2022 Advanced Micro Devices, Inc. All rights reserved.
+//
+// Permission is hereby granted, free of charge, to any person obtaining a copy
+// of this software and associated documentation files (the "Software"), to deal
+// in the Software without restriction, including without limitation the rights
+// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+// copies of the Software, and to permit persons to whom the Software is
+// furnished to do so, subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included in
+// all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+// THE SOFTWARE.
+//
+
+#include "D3D12MemAlloc.h"
+
+#include <combaseapi.h>
+#include <mutex>
+#include <algorithm>
+#include <utility>
+#include <cstdlib>
+#include <cstdint>
+#include <malloc.h> // for _aligned_malloc, _aligned_free
+#ifndef _WIN32
+    #include <shared_mutex>
+#endif
+
+////////////////////////////////////////////////////////////////////////////////
+////////////////////////////////////////////////////////////////////////////////
+//
+// Configuration Begin
+//
+////////////////////////////////////////////////////////////////////////////////
+////////////////////////////////////////////////////////////////////////////////
+#ifndef _D3D12MA_CONFIGURATION
+
+#ifdef _WIN32
+    #if !defined(WINVER) || WINVER < 0x0600
+        #error Required at least WinAPI version supporting: client = Windows Vista, server = Windows Server 2008.
+    #endif
+#endif
+
+#ifndef D3D12MA_SORT
+    #define D3D12MA_SORT(beg, end, cmp)  std::sort(beg, end, cmp)
+#endif
+
+#ifndef D3D12MA_D3D12_HEADERS_ALREADY_INCLUDED
+    #include <dxgi.h>
+    #if D3D12MA_DXGI_1_4
+        #include <dxgi1_4.h>
+    #endif
+#endif
+
+#ifndef D3D12MA_ASSERT
+    #include <cassert>
+    #define D3D12MA_ASSERT(cond) assert(cond)
+#endif
+
+// Assert that will be called very often, like inside data structures e.g. operator[].
+// Making it non-empty can make program slow.
+#ifndef D3D12MA_HEAVY_ASSERT
+    #ifdef _DEBUG
+        #define D3D12MA_HEAVY_ASSERT(expr)   //D3D12MA_ASSERT(expr)
+    #else
+        #define D3D12MA_HEAVY_ASSERT(expr)
+    #endif
+#endif
+
+#ifndef D3D12MA_DEBUG_ALIGNMENT
+    /*
+    Minimum alignment of all allocations, in bytes.
+    Set to more than 1 for debugging purposes only. Must be power of two.
+    */
+    #define D3D12MA_DEBUG_ALIGNMENT (1)
+#endif
+
+#ifndef D3D12MA_DEBUG_MARGIN
+    // Minimum margin before and after every allocation, in bytes.
+    // Set nonzero for debugging purposes only.
+    #define D3D12MA_DEBUG_MARGIN (0)
+#endif
+
+#ifndef D3D12MA_DEBUG_GLOBAL_MUTEX
+    /*
+    Set this to 1 for debugging purposes only, to enable single mutex protecting all
+    entry calls to the library. Can be useful for debugging multithreading issues.
+    */
+    #define D3D12MA_DEBUG_GLOBAL_MUTEX (0)
+#endif
+
+/*
+Define this macro for debugging purposes only to force specific D3D12_RESOURCE_HEAP_TIER,
+especially to test compatibility with D3D12_RESOURCE_HEAP_TIER_1 on modern GPUs.
+*/
+//#define D3D12MA_FORCE_RESOURCE_HEAP_TIER D3D12_RESOURCE_HEAP_TIER_1
+
+#ifndef D3D12MA_DEFAULT_BLOCK_SIZE
+   /// Default size of a block allocated as single ID3D12Heap.
+   #define D3D12MA_DEFAULT_BLOCK_SIZE (64ull * 1024 * 1024)
+#endif
+
+#ifndef D3D12MA_DEBUG_LOG
+   #define D3D12MA_DEBUG_LOG(format, ...)
+   /*
+   #define D3D12MA_DEBUG_LOG(format, ...) do { \
+       wprintf(format, __VA_ARGS__); \
+       wprintf(L"\n"); \
+   } while(false)
+   */
+#endif
+
+#endif // _D3D12MA_CONFIGURATION
+////////////////////////////////////////////////////////////////////////////////
+////////////////////////////////////////////////////////////////////////////////
+//
+// Configuration End
+//
+////////////////////////////////////////////////////////////////////////////////
+////////////////////////////////////////////////////////////////////////////////
+
+#define D3D12MA_IID_PPV_ARGS(ppType)   __uuidof(**(ppType)), reinterpret_cast<void**>(ppType)
+
+#ifdef __ID3D12Device8_INTERFACE_DEFINED__
+    #define D3D12MA_CREATE_NOT_ZEROED_AVAILABLE 1
+#endif
+
+#if defined(__clang__) || defined(__GNUC__)
+#pragma GCC diagnostic push
+#pragma GCC diagnostic ignored "-Wunused-parameter"
+#pragma GCC diagnostic ignored "-Wunused-variable"
+#pragma GCC diagnostic ignored "-Wsign-compare"
+#pragma GCC diagnostic ignored "-Wmissing-field-initializers"
+#pragma GCC diagnostic ignored "-Wswitch"
+#pragma GCC diagnostic ignored "-Wimplicit-fallthrough"
+#pragma GCC diagnostic ignored "-Wunused-function"
+#pragma GCC diagnostic ignored "-Wnonnull-compare"
+#endif
+
+namespace D3D12MA
+{
+static constexpr UINT HEAP_TYPE_COUNT = 4;
+static constexpr UINT STANDARD_HEAP_TYPE_COUNT = 3; // Only DEFAULT, UPLOAD, READBACK.
+static constexpr UINT DEFAULT_POOL_MAX_COUNT = 9;
+static const UINT NEW_BLOCK_SIZE_SHIFT_MAX = 3;
+// Minimum size of a free suballocation to register it in the free suballocation collection.
+static const UINT64 MIN_FREE_SUBALLOCATION_SIZE_TO_REGISTER = 16;
+
+static const WCHAR* const HeapTypeNames[] =
+{
+    L"DEFAULT",
+    L"UPLOAD",
+    L"READBACK",
+    L"CUSTOM",
+};
+
+static const D3D12_HEAP_FLAGS RESOURCE_CLASS_HEAP_FLAGS =
+    D3D12_HEAP_FLAG_DENY_BUFFERS | D3D12_HEAP_FLAG_DENY_RT_DS_TEXTURES | D3D12_HEAP_FLAG_DENY_NON_RT_DS_TEXTURES;
+
+static const D3D12_RESIDENCY_PRIORITY D3D12_RESIDENCY_PRIORITY_NONE = D3D12_RESIDENCY_PRIORITY(0);
+
+#ifndef _D3D12MA_ENUM_DECLARATIONS
+
+// Local copy of this enum, as it is provided only by <dxgi1_4.h>, so it may not be available.
+enum DXGI_MEMORY_SEGMENT_GROUP_COPY
+{
+    DXGI_MEMORY_SEGMENT_GROUP_LOCAL_COPY = 0,
+    DXGI_MEMORY_SEGMENT_GROUP_NON_LOCAL_COPY = 1,
+    DXGI_MEMORY_SEGMENT_GROUP_COUNT
+};
+
+enum class ResourceClass
+{
+    Unknown, Buffer, Non_RT_DS_Texture, RT_DS_Texture
+};
+
+enum SuballocationType
+{
+    SUBALLOCATION_TYPE_FREE = 0,
+    SUBALLOCATION_TYPE_ALLOCATION = 1,
+};
+
+#endif // _D3D12MA_ENUM_DECLARATIONS
+
+
+#ifndef _D3D12MA_FUNCTIONS
+
+static void* DefaultAllocate(size_t Size, size_t Alignment, void* /*pPrivateData*/)
+{
+#ifdef _WIN32
+    return _aligned_malloc(Size, Alignment);
+#else
+    return aligned_alloc(Alignment, Size);
+#endif
+}
+static void DefaultFree(void* pMemory, void* /*pPrivateData*/)
+{
+#ifdef _WIN32
+    return _aligned_free(pMemory);
+#else
+    return free(pMemory);
+#endif
+}
+
+static void* Malloc(const ALLOCATION_CALLBACKS& allocs, size_t size, size_t alignment)
+{
+    void* const result = (*allocs.pAllocate)(size, alignment, allocs.pPrivateData);
+    D3D12MA_ASSERT(result);
+    return result;
+}
+static void Free(const ALLOCATION_CALLBACKS& allocs, void* memory)
+{
+    (*allocs.pFree)(memory, allocs.pPrivateData);
+}
+
+template<typename T>
+static T* Allocate(const ALLOCATION_CALLBACKS& allocs)
+{
+    return (T*)Malloc(allocs, sizeof(T), __alignof(T));
+}
+template<typename T>
+static T* AllocateArray(const ALLOCATION_CALLBACKS& allocs, size_t count)
+{
+    return (T*)Malloc(allocs, sizeof(T) * count, __alignof(T));
+}
+
+#define D3D12MA_NEW(allocs, type) new(D3D12MA::Allocate<type>(allocs))(type)
+#define D3D12MA_NEW_ARRAY(allocs, type, count) new(D3D12MA::AllocateArray<type>((allocs), (count)))(type)
+
+template<typename T>
+void D3D12MA_DELETE(const ALLOCATION_CALLBACKS& allocs, T* memory)
+{
+    if (memory)
+    {
+        memory->~T();
+        Free(allocs, memory);
+    }
+}
+template<typename T>
+void D3D12MA_DELETE_ARRAY(const ALLOCATION_CALLBACKS& allocs, T* memory, size_t count)
+{
+    if (memory)
+    {
+        for (size_t i = count; i--; )
+        {
+            memory[i].~T();
+        }
+        Free(allocs, memory);
+    }
+}
+
+static void SetupAllocationCallbacks(ALLOCATION_CALLBACKS& outAllocs, const ALLOCATION_CALLBACKS* allocationCallbacks)
+{
+    if (allocationCallbacks)
+    {
+        outAllocs = *allocationCallbacks;
+        D3D12MA_ASSERT(outAllocs.pAllocate != NULL && outAllocs.pFree != NULL);
+    }
+    else
+    {
+        outAllocs.pAllocate = &DefaultAllocate;
+        outAllocs.pFree = &DefaultFree;
+        outAllocs.pPrivateData = NULL;
+    }
+}
+
+#define SAFE_RELEASE(ptr)   do { if(ptr) { (ptr)->Release(); (ptr) = NULL; } } while(false)
+
+#define D3D12MA_VALIDATE(cond) do { if(!(cond)) { \
+    D3D12MA_ASSERT(0 && "Validation failed: " #cond); \
+    return false; \
+} } while(false)
+
+template<typename T>
+static T D3D12MA_MIN(const T& a, const T& b) { return a <= b ? a : b; }
+template<typename T>
+static T D3D12MA_MAX(const T& a, const T& b) { return a <= b ? b : a; }
+
+template<typename T>
+static void D3D12MA_SWAP(T& a, T& b) { T tmp = a; a = b; b = tmp; }
+
+// Scans integer for index of first nonzero bit from the Least Significant Bit (LSB). If mask is 0 then returns UINT8_MAX
+static UINT8 BitScanLSB(UINT64 mask)
+{
+#if defined(_MSC_VER) && defined(_WIN64)
+    unsigned long pos;
+    if (_BitScanForward64(&pos, mask))
+        return static_cast<UINT8>(pos);
+    return UINT8_MAX;
+#elif defined __GNUC__ || defined __clang__
+    return static_cast<UINT8>(__builtin_ffsll(mask)) - 1U;
+#else
+    UINT8 pos = 0;
+    UINT64 bit = 1;
+    do
+    {
+        if (mask & bit)
+            return pos;
+        bit <<= 1;
+    } while (pos++ < 63);
+    return UINT8_MAX;
+#endif
+}
+// Scans integer for index of first nonzero bit from the Least Significant Bit (LSB). If mask is 0 then returns UINT8_MAX
+static UINT8 BitScanLSB(UINT32 mask)
+{
+#ifdef _MSC_VER
+    unsigned long pos;
+    if (_BitScanForward(&pos, mask))
+        return static_cast<UINT8>(pos);
+    return UINT8_MAX;
+#elif defined __GNUC__ || defined __clang__
+    return static_cast<UINT8>(__builtin_ffs(mask)) - 1U;
+#else
+    UINT8 pos = 0;
+    UINT32 bit = 1;
+    do
+    {
+        if (mask & bit)
+            return pos;
+        bit <<= 1;
+    } while (pos++ < 31);
+    return UINT8_MAX;
+#endif
+}
+
+// Scans integer for index of first nonzero bit from the Most Significant Bit (MSB). If mask is 0 then returns UINT8_MAX
+static UINT8 BitScanMSB(UINT64 mask)
+{
+#if defined(_MSC_VER) && defined(_WIN64)
+    unsigned long pos;
+    if (_BitScanReverse64(&pos, mask))
+        return static_cast<UINT8>(pos);
+#elif defined __GNUC__ || defined __clang__
+    if (mask)
+        return 63 - static_cast<UINT8>(__builtin_clzll(mask));
+#else
+    UINT8 pos = 63;
+    UINT64 bit = 1ULL << 63;
+    do
+    {
+        if (mask & bit)
+            return pos;
+        bit >>= 1;
+    } while (pos-- > 0);
+#endif
+    return UINT8_MAX;
+}
+// Scans integer for index of first nonzero bit from the Most Significant Bit (MSB). If mask is 0 then returns UINT8_MAX
+static UINT8 BitScanMSB(UINT32 mask)
+{
+#ifdef _MSC_VER
+    unsigned long pos;
+    if (_BitScanReverse(&pos, mask))
+        return static_cast<UINT8>(pos);
+#elif defined __GNUC__ || defined __clang__
+    if (mask)
+        return 31 - static_cast<UINT8>(__builtin_clz(mask));
+#else
+    UINT8 pos = 31;
+    UINT32 bit = 1UL << 31;
+    do
+    {
+        if (mask & bit)
+            return pos;
+        bit >>= 1;
+    } while (pos-- > 0);
+#endif
+    return UINT8_MAX;
+}
+
+/*
+Returns true if given number is a power of two.
+T must be unsigned integer number or signed integer but always nonnegative.
+For 0 returns true.
+*/
+template <typename T>
+static bool IsPow2(T x) { return (x & (x - 1)) == 0; }
+
+// Aligns given value up to nearest multiply of align value. For example: AlignUp(11, 8) = 16.
+// Use types like UINT, uint64_t as T.
+template <typename T>
+static T AlignUp(T val, T alignment)
+{
+    D3D12MA_HEAVY_ASSERT(IsPow2(alignment));
+    return (val + alignment - 1) & ~(alignment - 1);
+}
+// Aligns given value down to nearest multiply of align value. For example: AlignUp(11, 8) = 8.
+// Use types like UINT, uint64_t as T.
+template <typename T>
+static T AlignDown(T val, T alignment)
+{
+    D3D12MA_HEAVY_ASSERT(IsPow2(alignment));
+    return val & ~(alignment - 1);
+}
+
+// Division with mathematical rounding to nearest number.
+template <typename T>
+static T RoundDiv(T x, T y) { return (x + (y / (T)2)) / y; }
+template <typename T>
+static T DivideRoundingUp(T x, T y) { return (x + y - 1) / y; }
+
+static WCHAR HexDigitToChar(UINT8 digit)
+{
+    if(digit < 10)
+        return L'0' + digit;
+    else
+        return L'A' + (digit - 10);
+}
+
+/*
+Performs binary search and returns iterator to first element that is greater or
+equal to `key`, according to comparison `cmp`.
+
+Cmp should return true if first argument is less than second argument.
+
+Returned value is the found element, if present in the collection or place where
+new element with value (key) should be inserted.
+*/
+template <typename CmpLess, typename IterT, typename KeyT>
+static IterT BinaryFindFirstNotLess(IterT beg, IterT end, const KeyT& key, const CmpLess& cmp)
+{
+    size_t down = 0, up = (end - beg);
+    while (down < up)
+    {
+        const size_t mid = (down + up) / 2;
+        if (cmp(*(beg + mid), key))
+        {
+            down = mid + 1;
+        }
+        else
+        {
+            up = mid;
+        }
+    }
+    return beg + down;
+}
+
+/*
+Performs binary search and returns iterator to an element that is equal to `key`,
+according to comparison `cmp`.
+
+Cmp should return true if first argument is less than second argument.
+
+Returned value is the found element, if present in the collection or end if not
+found.
+*/
+template<typename CmpLess, typename IterT, typename KeyT>
+static IterT BinaryFindSorted(const IterT& beg, const IterT& end, const KeyT& value, const CmpLess& cmp)
+{
+    IterT it = BinaryFindFirstNotLess<CmpLess, IterT, KeyT>(beg, end, value, cmp);
+    if (it == end ||
+        (!cmp(*it, value) && !cmp(value, *it)))
+    {
+        return it;
+    }
+    return end;
+}
+
+static UINT HeapTypeToIndex(D3D12_HEAP_TYPE type)
+{
+    switch (type)
+    {
+    case D3D12_HEAP_TYPE_DEFAULT:  return 0;
+    case D3D12_HEAP_TYPE_UPLOAD:   return 1;
+    case D3D12_HEAP_TYPE_READBACK: return 2;
+    case D3D12_HEAP_TYPE_CUSTOM:   return 3;
+    default: D3D12MA_ASSERT(0); return UINT_MAX;
+    }
+}
+
+static D3D12_HEAP_TYPE IndexToHeapType(UINT heapTypeIndex)
+{
+    D3D12MA_ASSERT(heapTypeIndex < 4);
+    // D3D12_HEAP_TYPE_DEFAULT starts at 1.
+    return (D3D12_HEAP_TYPE)(heapTypeIndex + 1);
+}
+
+static UINT64 HeapFlagsToAlignment(D3D12_HEAP_FLAGS flags, bool denyMsaaTextures)
+{
+    /*
+    Documentation of D3D12_HEAP_DESC structure says:
+
+    - D3D12_DEFAULT_RESOURCE_PLACEMENT_ALIGNMENT   defined as 64KB.
+    - D3D12_DEFAULT_MSAA_RESOURCE_PLACEMENT_ALIGNMENT   defined as 4MB. An
+    application must decide whether the heap will contain multi-sample
+    anti-aliasing (MSAA), in which case, the application must choose [this flag].
+
+    https://docs.microsoft.com/en-us/windows/desktop/api/d3d12/ns-d3d12-d3d12_heap_desc
+    */
+
+    if (denyMsaaTextures)
+        return D3D12_DEFAULT_RESOURCE_PLACEMENT_ALIGNMENT;
+
+    const D3D12_HEAP_FLAGS denyAllTexturesFlags =
+        D3D12_HEAP_FLAG_DENY_NON_RT_DS_TEXTURES | D3D12_HEAP_FLAG_DENY_RT_DS_TEXTURES;
+    const bool canContainAnyTextures =
+        (flags & denyAllTexturesFlags) != denyAllTexturesFlags;
+    return canContainAnyTextures ?
+        D3D12_DEFAULT_MSAA_RESOURCE_PLACEMENT_ALIGNMENT : D3D12_DEFAULT_RESOURCE_PLACEMENT_ALIGNMENT;
+}
+
+static ResourceClass HeapFlagsToResourceClass(D3D12_HEAP_FLAGS heapFlags)
+{
+    const bool allowBuffers = (heapFlags & D3D12_HEAP_FLAG_DENY_BUFFERS) == 0;
+    const bool allowRtDsTextures = (heapFlags & D3D12_HEAP_FLAG_DENY_RT_DS_TEXTURES) == 0;
+    const bool allowNonRtDsTextures = (heapFlags & D3D12_HEAP_FLAG_DENY_NON_RT_DS_TEXTURES) == 0;
+
+    const uint8_t allowedGroupCount = (allowBuffers ? 1 : 0) + (allowRtDsTextures ? 1 : 0) + (allowNonRtDsTextures ? 1 : 0);
+    if (allowedGroupCount != 1)
+        return ResourceClass::Unknown;
+
+    if (allowRtDsTextures)
+        return ResourceClass::RT_DS_Texture;
+    if (allowNonRtDsTextures)
+        return ResourceClass::Non_RT_DS_Texture;
+    return ResourceClass::Buffer;
+}
+
+static bool IsHeapTypeStandard(D3D12_HEAP_TYPE type)
+{
+    return type == D3D12_HEAP_TYPE_DEFAULT ||
+        type == D3D12_HEAP_TYPE_UPLOAD ||
+        type == D3D12_HEAP_TYPE_READBACK;
+}
+
+static D3D12_HEAP_PROPERTIES StandardHeapTypeToHeapProperties(D3D12_HEAP_TYPE type)
+{
+    D3D12MA_ASSERT(IsHeapTypeStandard(type));
+    D3D12_HEAP_PROPERTIES result = {};
+    result.Type = type;
+    return result;
+}
+
+static bool IsFormatCompressed(DXGI_FORMAT format)
+{
+    switch (format)
+    {
+    case DXGI_FORMAT_BC1_TYPELESS:
+    case DXGI_FORMAT_BC1_UNORM:
+    case DXGI_FORMAT_BC1_UNORM_SRGB:
+    case DXGI_FORMAT_BC2_TYPELESS:
+    case DXGI_FORMAT_BC2_UNORM:
+    case DXGI_FORMAT_BC2_UNORM_SRGB:
+    case DXGI_FORMAT_BC3_TYPELESS:
+    case DXGI_FORMAT_BC3_UNORM:
+    case DXGI_FORMAT_BC3_UNORM_SRGB:
+    case DXGI_FORMAT_BC4_TYPELESS:
+    case DXGI_FORMAT_BC4_UNORM:
+    case DXGI_FORMAT_BC4_SNORM:
+    case DXGI_FORMAT_BC5_TYPELESS:
+    case DXGI_FORMAT_BC5_UNORM:
+    case DXGI_FORMAT_BC5_SNORM:
+    case DXGI_FORMAT_BC6H_TYPELESS:
+    case DXGI_FORMAT_BC6H_UF16:
+    case DXGI_FORMAT_BC6H_SF16:
+    case DXGI_FORMAT_BC7_TYPELESS:
+    case DXGI_FORMAT_BC7_UNORM:
+    case DXGI_FORMAT_BC7_UNORM_SRGB:
+        return true;
+    default:
+        return false;
+    }
+}
+
+// Only some formats are supported. For others it returns 0.
+static UINT GetBitsPerPixel(DXGI_FORMAT format)
+{
+    switch (format)
+    {
+    case DXGI_FORMAT_R32G32B32A32_TYPELESS:
+    case DXGI_FORMAT_R32G32B32A32_FLOAT:
+    case DXGI_FORMAT_R32G32B32A32_UINT:
+    case DXGI_FORMAT_R32G32B32A32_SINT:
+        return 128;
+    case DXGI_FORMAT_R32G32B32_TYPELESS:
+    case DXGI_FORMAT_R32G32B32_FLOAT:
+    case DXGI_FORMAT_R32G32B32_UINT:
+    case DXGI_FORMAT_R32G32B32_SINT:
+        return 96;
+    case DXGI_FORMAT_R16G16B16A16_TYPELESS:
+    case DXGI_FORMAT_R16G16B16A16_FLOAT:
+    case DXGI_FORMAT_R16G16B16A16_UNORM:
+    case DXGI_FORMAT_R16G16B16A16_UINT:
+    case DXGI_FORMAT_R16G16B16A16_SNORM:
+    case DXGI_FORMAT_R16G16B16A16_SINT:
+        return 64;
+    case DXGI_FORMAT_R32G32_TYPELESS:
+    case DXGI_FORMAT_R32G32_FLOAT:
+    case DXGI_FORMAT_R32G32_UINT:
+    case DXGI_FORMAT_R32G32_SINT:
+        return 64;
+    case DXGI_FORMAT_R32G8X24_TYPELESS:
+    case DXGI_FORMAT_D32_FLOAT_S8X24_UINT:
+    case DXGI_FORMAT_R32_FLOAT_X8X24_TYPELESS:
+    case DXGI_FORMAT_X32_TYPELESS_G8X24_UINT:
+        return 64;
+    case DXGI_FORMAT_R10G10B10A2_TYPELESS:
+    case DXGI_FORMAT_R10G10B10A2_UNORM:
+    case DXGI_FORMAT_R10G10B10A2_UINT:
+    case DXGI_FORMAT_R11G11B10_FLOAT:
+        return 32;
+    case DXGI_FORMAT_R8G8B8A8_TYPELESS:
+    case DXGI_FORMAT_R8G8B8A8_UNORM:
+    case DXGI_FORMAT_R8G8B8A8_UNORM_SRGB:
+    case DXGI_FORMAT_R8G8B8A8_UINT:
+    case DXGI_FORMAT_R8G8B8A8_SNORM:
+    case DXGI_FORMAT_R8G8B8A8_SINT:
+        return 32;
+    case DXGI_FORMAT_R16G16_TYPELESS:
+    case DXGI_FORMAT_R16G16_FLOAT:
+    case DXGI_FORMAT_R16G16_UNORM:
+    case DXGI_FORMAT_R16G16_UINT:
+    case DXGI_FORMAT_R16G16_SNORM:
+    case DXGI_FORMAT_R16G16_SINT:
+        return 32;
+    case DXGI_FORMAT_R32_TYPELESS:
+    case DXGI_FORMAT_D32_FLOAT:
+    case DXGI_FORMAT_R32_FLOAT:
+    case DXGI_FORMAT_R32_UINT:
+    case DXGI_FORMAT_R32_SINT:
+        return 32;
+    case DXGI_FORMAT_R24G8_TYPELESS:
+    case DXGI_FORMAT_D24_UNORM_S8_UINT:
+    case DXGI_FORMAT_R24_UNORM_X8_TYPELESS:
+    case DXGI_FORMAT_X24_TYPELESS_G8_UINT:
+        return 32;
+    case DXGI_FORMAT_R8G8_TYPELESS:
+    case DXGI_FORMAT_R8G8_UNORM:
+    case DXGI_FORMAT_R8G8_UINT:
+    case DXGI_FORMAT_R8G8_SNORM:
+    case DXGI_FORMAT_R8G8_SINT:
+        return 16;
+    case DXGI_FORMAT_R16_TYPELESS:
+    case DXGI_FORMAT_R16_FLOAT:
+    case DXGI_FORMAT_D16_UNORM:
+    case DXGI_FORMAT_R16_UNORM:
+    case DXGI_FORMAT_R16_UINT:
+    case DXGI_FORMAT_R16_SNORM:
+    case DXGI_FORMAT_R16_SINT:
+        return 16;
+    case DXGI_FORMAT_R8_TYPELESS:
+    case DXGI_FORMAT_R8_UNORM:
+    case DXGI_FORMAT_R8_UINT:
+    case DXGI_FORMAT_R8_SNORM:
+    case DXGI_FORMAT_R8_SINT:
+    case DXGI_FORMAT_A8_UNORM:
+        return 8;
+    case DXGI_FORMAT_BC1_TYPELESS:
+    case DXGI_FORMAT_BC1_UNORM:
+    case DXGI_FORMAT_BC1_UNORM_SRGB:
+        return 4;
+    case DXGI_FORMAT_BC2_TYPELESS:
+    case DXGI_FORMAT_BC2_UNORM:
+    case DXGI_FORMAT_BC2_UNORM_SRGB:
+        return 8;
+    case DXGI_FORMAT_BC3_TYPELESS:
+    case DXGI_FORMAT_BC3_UNORM:
+    case DXGI_FORMAT_BC3_UNORM_SRGB:
+        return 8;
+    case DXGI_FORMAT_BC4_TYPELESS:
+    case DXGI_FORMAT_BC4_UNORM:
+    case DXGI_FORMAT_BC4_SNORM:
+        return 4;
+    case DXGI_FORMAT_BC5_TYPELESS:
+    case DXGI_FORMAT_BC5_UNORM:
+    case DXGI_FORMAT_BC5_SNORM:
+        return 8;
+    case DXGI_FORMAT_BC6H_TYPELESS:
+    case DXGI_FORMAT_BC6H_UF16:
+    case DXGI_FORMAT_BC6H_SF16:
+        return 8;
+    case DXGI_FORMAT_BC7_TYPELESS:
+    case DXGI_FORMAT_BC7_UNORM:
+    case DXGI_FORMAT_BC7_UNORM_SRGB:
+        return 8;
+    default:
+        return 0;
+    }
+}
+    
+template<typename D3D12_RESOURCE_DESC_T>
+static ResourceClass ResourceDescToResourceClass(const D3D12_RESOURCE_DESC_T& resDesc)
+{
+    if (resDesc.Dimension == D3D12_RESOURCE_DIMENSION_BUFFER)
+        return ResourceClass::Buffer;
+    // Else: it's surely a texture.
+    const bool isRenderTargetOrDepthStencil =
+        (resDesc.Flags & (D3D12_RESOURCE_FLAG_ALLOW_RENDER_TARGET | D3D12_RESOURCE_FLAG_ALLOW_DEPTH_STENCIL)) != 0;
+    return isRenderTargetOrDepthStencil ? ResourceClass::RT_DS_Texture : ResourceClass::Non_RT_DS_Texture;
+}
+    
+// This algorithm is overly conservative.
+template<typename D3D12_RESOURCE_DESC_T>
+static bool CanUseSmallAlignment(const D3D12_RESOURCE_DESC_T& resourceDesc)
+{
+    if (resourceDesc.Dimension != D3D12_RESOURCE_DIMENSION_TEXTURE2D)
+        return false;
+    if ((resourceDesc.Flags & (D3D12_RESOURCE_FLAG_ALLOW_RENDER_TARGET | D3D12_RESOURCE_FLAG_ALLOW_DEPTH_STENCIL)) != 0)
+        return false;
+    if (resourceDesc.SampleDesc.Count > 1)
+        return false;
+    if (resourceDesc.DepthOrArraySize != 1)
+        return false;
+
+    UINT sizeX = (UINT)resourceDesc.Width;
+    UINT sizeY = resourceDesc.Height;
+    UINT bitsPerPixel = GetBitsPerPixel(resourceDesc.Format);
+    if (bitsPerPixel == 0)
+        return false;
+
+    if (IsFormatCompressed(resourceDesc.Format))
+    {
+        sizeX = DivideRoundingUp(sizeX, 4u);
+        sizeY = DivideRoundingUp(sizeY, 4u);
+        bitsPerPixel *= 16;
+    }
+
+    UINT tileSizeX = 0, tileSizeY = 0;
+    switch (bitsPerPixel)
+    {
+    case   8: tileSizeX = 64; tileSizeY = 64; break;
+    case  16: tileSizeX = 64; tileSizeY = 32; break;
+    case  32: tileSizeX = 32; tileSizeY = 32; break;
+    case  64: tileSizeX = 32; tileSizeY = 16; break;
+    case 128: tileSizeX = 16; tileSizeY = 16; break;
+    default: return false;
+    }
+
+    const UINT tileCount = DivideRoundingUp(sizeX, tileSizeX) * DivideRoundingUp(sizeY, tileSizeY);
+    return tileCount <= 16;
+}
+    
+static bool ValidateAllocateMemoryParameters(
+    const ALLOCATION_DESC* pAllocDesc,
+    const D3D12_RESOURCE_ALLOCATION_INFO* pAllocInfo,
+    Allocation** ppAllocation)
+{
+    return pAllocDesc &&
+        pAllocInfo &&
+        ppAllocation &&
+        (pAllocInfo->Alignment == 0 ||
+            pAllocInfo->Alignment == D3D12_DEFAULT_RESOURCE_PLACEMENT_ALIGNMENT ||
+            pAllocInfo->Alignment == D3D12_DEFAULT_MSAA_RESOURCE_PLACEMENT_ALIGNMENT) &&
+        pAllocInfo->SizeInBytes != 0 &&
+        pAllocInfo->SizeInBytes % (64ull * 1024) == 0;
+}
+
+#endif // _D3D12MA_FUNCTIONS
+    
+#ifndef _D3D12MA_STATISTICS_FUNCTIONS
+
+static void ClearStatistics(Statistics& outStats)
+{
+    outStats.BlockCount = 0;
+    outStats.AllocationCount = 0;
+    outStats.BlockBytes = 0;
+    outStats.AllocationBytes = 0;
+}
+
+static void ClearDetailedStatistics(DetailedStatistics& outStats)
+{
+    ClearStatistics(outStats.Stats);
+    outStats.UnusedRangeCount = 0;
+    outStats.AllocationSizeMin = UINT64_MAX;
+    outStats.AllocationSizeMax = 0;
+    outStats.UnusedRangeSizeMin = UINT64_MAX;
+    outStats.UnusedRangeSizeMax = 0;
+}
+
+static void AddStatistics(Statistics& inoutStats, const Statistics& src)
+{
+    inoutStats.BlockCount += src.BlockCount;
+    inoutStats.AllocationCount += src.AllocationCount;
+    inoutStats.BlockBytes += src.BlockBytes;
+    inoutStats.AllocationBytes += src.AllocationBytes;
+}
+
+static void AddDetailedStatistics(DetailedStatistics& inoutStats, const DetailedStatistics& src)
+{
+    AddStatistics(inoutStats.Stats, src.Stats);
+    inoutStats.UnusedRangeCount += src.UnusedRangeCount;
+    inoutStats.AllocationSizeMin = D3D12MA_MIN(inoutStats.AllocationSizeMin, src.AllocationSizeMin);
+    inoutStats.AllocationSizeMax = D3D12MA_MAX(inoutStats.AllocationSizeMax, src.AllocationSizeMax);
+    inoutStats.UnusedRangeSizeMin = D3D12MA_MIN(inoutStats.UnusedRangeSizeMin, src.UnusedRangeSizeMin);
+    inoutStats.UnusedRangeSizeMax = D3D12MA_MAX(inoutStats.UnusedRangeSizeMax, src.UnusedRangeSizeMax);
+}
+
+static void AddDetailedStatisticsAllocation(DetailedStatistics& inoutStats, UINT64 size)
+{
+    inoutStats.Stats.AllocationCount++;
+    inoutStats.Stats.AllocationBytes += size;
+    inoutStats.AllocationSizeMin = D3D12MA_MIN(inoutStats.AllocationSizeMin, size);
+    inoutStats.AllocationSizeMax = D3D12MA_MAX(inoutStats.AllocationSizeMax, size);
+}
+
+static void AddDetailedStatisticsUnusedRange(DetailedStatistics& inoutStats, UINT64 size)
+{
+    inoutStats.UnusedRangeCount++;
+    inoutStats.UnusedRangeSizeMin = D3D12MA_MIN(inoutStats.UnusedRangeSizeMin, size);
+    inoutStats.UnusedRangeSizeMax = D3D12MA_MAX(inoutStats.UnusedRangeSizeMax, size);
+}
+    
+#endif // _D3D12MA_STATISTICS_FUNCTIONS
+
+
+#ifndef _D3D12MA_MUTEX
+
+#ifndef D3D12MA_MUTEX
+    class Mutex
+    {
+    public:
+        void Lock() { m_Mutex.lock(); }
+        void Unlock() { m_Mutex.unlock(); }
+    
+    private:
+        std::mutex m_Mutex;
+    };
+    #define D3D12MA_MUTEX Mutex
+#endif
+
+#ifndef D3D12MA_RW_MUTEX
+#ifdef _WIN32
+    class RWMutex
+    {
+    public:
+        RWMutex() { InitializeSRWLock(&m_Lock); }
+        void LockRead() { AcquireSRWLockShared(&m_Lock); }
+        void UnlockRead() { ReleaseSRWLockShared(&m_Lock); }
+        void LockWrite() { AcquireSRWLockExclusive(&m_Lock); }
+        void UnlockWrite() { ReleaseSRWLockExclusive(&m_Lock); }
+    
+    private:
+        SRWLOCK m_Lock;
+    };
+#else // #ifdef _WIN32
+    class RWMutex
+    {
+    public:
+        RWMutex() {}
+        void LockRead() { m_Mutex.lock_shared(); }
+        void UnlockRead() { m_Mutex.unlock_shared(); }
+        void LockWrite() { m_Mutex.lock(); }
+        void UnlockWrite() { m_Mutex.unlock(); }
+    
+    private:
+        std::shared_timed_mutex m_Mutex;
+    };
+#endif // #ifdef _WIN32
+    #define D3D12MA_RW_MUTEX RWMutex
+#endif // #ifndef D3D12MA_RW_MUTEX
+
+// Helper RAII class to lock a mutex in constructor and unlock it in destructor (at the end of scope).
+struct MutexLock
+{
+    D3D12MA_CLASS_NO_COPY(MutexLock);
+public:
+    MutexLock(D3D12MA_MUTEX& mutex, bool useMutex = true) :
+        m_pMutex(useMutex ? &mutex : NULL)
+    {
+        if (m_pMutex) m_pMutex->Lock(); 
+    }
+    ~MutexLock() { if (m_pMutex) m_pMutex->Unlock(); }
+
+private:
+    D3D12MA_MUTEX* m_pMutex;
+};
+
+// Helper RAII class to lock a RW mutex in constructor and unlock it in destructor (at the end of scope), for reading.
+struct MutexLockRead
+{
+    D3D12MA_CLASS_NO_COPY(MutexLockRead);
+public:
+    MutexLockRead(D3D12MA_RW_MUTEX& mutex, bool useMutex)
+        :  m_pMutex(useMutex ? &mutex : NULL)
+    {
+        if(m_pMutex)
+        {
+            m_pMutex->LockRead();
+        }
+    }
+    ~MutexLockRead() { if (m_pMutex) m_pMutex->UnlockRead(); }
+
+private:
+    D3D12MA_RW_MUTEX* m_pMutex;
+};
+
+// Helper RAII class to lock a RW mutex in constructor and unlock it in destructor (at the end of scope), for writing.
+struct MutexLockWrite
+{
+    D3D12MA_CLASS_NO_COPY(MutexLockWrite);
+public:
+    MutexLockWrite(D3D12MA_RW_MUTEX& mutex, bool useMutex)
+        : m_pMutex(useMutex ? &mutex : NULL)
+    {
+        if (m_pMutex) m_pMutex->LockWrite(); 
+    }
+    ~MutexLockWrite() { if (m_pMutex) m_pMutex->UnlockWrite(); }
+
+private:
+    D3D12MA_RW_MUTEX* m_pMutex;
+};
+
+#if D3D12MA_DEBUG_GLOBAL_MUTEX
+    static D3D12MA_MUTEX g_DebugGlobalMutex;
+    #define D3D12MA_DEBUG_GLOBAL_MUTEX_LOCK MutexLock debugGlobalMutexLock(g_DebugGlobalMutex, true);
+#else
+    #define D3D12MA_DEBUG_GLOBAL_MUTEX_LOCK
+#endif
+#endif // _D3D12MA_MUTEX
+
+#ifndef _D3D12MA_VECTOR
+/*
+Dynamically resizing continuous array. Class with interface similar to std::vector.
+T must be POD because constructors and destructors are not called and memcpy is
+used for these objects.
+*/
+template<typename T>
+class Vector
+{
+public:
+    using value_type = T;
+    using iterator = T*;
+    using const_iterator = const T*;
+
+    // allocationCallbacks externally owned, must outlive this object.
+    Vector(const ALLOCATION_CALLBACKS& allocationCallbacks);
+    Vector(size_t count, const ALLOCATION_CALLBACKS& allocationCallbacks);
+    Vector(const Vector<T>& src);
+    ~Vector();
+
+    const ALLOCATION_CALLBACKS& GetAllocs() const { return m_AllocationCallbacks; }
+    bool empty() const { return m_Count == 0; }
+    size_t size() const { return m_Count; }
+    T* data() { return m_pArray; }
+    const T* data() const { return m_pArray; }
+    void clear(bool freeMemory = false) { resize(0, freeMemory); }
+
+    iterator begin() { return m_pArray; }
+    iterator end() { return m_pArray + m_Count; }
+    const_iterator cbegin() const { return m_pArray; }
+    const_iterator cend() const { return m_pArray + m_Count; }
+    const_iterator begin() const { return cbegin(); }
+    const_iterator end() const { return cend(); }
+
+    void push_front(const T& src) { insert(0, src); }
+    void push_back(const T& src);
+    void pop_front();
+    void pop_back();
+
+    T& front();
+    T& back();
+    const T& front() const;
+    const T& back() const;
+
+    void reserve(size_t newCapacity, bool freeMemory = false);
+    void resize(size_t newCount, bool freeMemory = false);
+    void insert(size_t index, const T& src);
+    void remove(size_t index);
+
+    template<typename CmpLess>
+    size_t InsertSorted(const T& value, const CmpLess& cmp);
+    template<typename CmpLess>
+    bool RemoveSorted(const T& value, const CmpLess& cmp);
+
+    Vector& operator=(const Vector<T>& rhs);
+    T& operator[](size_t index);
+    const T& operator[](size_t index) const;
+
+private:
+    const ALLOCATION_CALLBACKS& m_AllocationCallbacks;
+    T* m_pArray;
+    size_t m_Count;
+    size_t m_Capacity;
+};
+
+#ifndef _D3D12MA_VECTOR_FUNCTIONS
+template<typename T>
+Vector<T>::Vector(const ALLOCATION_CALLBACKS& allocationCallbacks)
+    : m_AllocationCallbacks(allocationCallbacks),
+    m_pArray(NULL),
+    m_Count(0),
+    m_Capacity(0) {}
+
+template<typename T>
+Vector<T>::Vector(size_t count, const ALLOCATION_CALLBACKS& allocationCallbacks)
+    : m_AllocationCallbacks(allocationCallbacks),
+    m_pArray(count ? AllocateArray<T>(allocationCallbacks, count) : NULL),
+    m_Count(count),
+    m_Capacity(count) {}
+
+template<typename T>
+Vector<T>::Vector(const Vector<T>& src)
+    : m_AllocationCallbacks(src.m_AllocationCallbacks),
+    m_pArray(src.m_Count ? AllocateArray<T>(src.m_AllocationCallbacks, src.m_Count) : NULL),
+    m_Count(src.m_Count),
+    m_Capacity(src.m_Count)
+{
+    if (m_Count > 0)
+    {
+        memcpy(m_pArray, src.m_pArray, m_Count * sizeof(T));
+    }
+}
+
+template<typename T>
+Vector<T>::~Vector()
+{
+    Free(m_AllocationCallbacks, m_pArray);
+}
+
+template<typename T>
+void Vector<T>::push_back(const T& src)
+{
+    const size_t newIndex = size();
+    resize(newIndex + 1);
+    m_pArray[newIndex] = src;
+}
+
+template<typename T>
+void Vector<T>::pop_front()
+{
+    D3D12MA_HEAVY_ASSERT(m_Count > 0);
+    remove(0);
+}
+
+template<typename T>
+void Vector<T>::pop_back()
+{
+    D3D12MA_HEAVY_ASSERT(m_Count > 0);
+    resize(size() - 1);
+}
+
+template<typename T>
+T& Vector<T>::front()
+{
+    D3D12MA_HEAVY_ASSERT(m_Count > 0);
+    return m_pArray[0];
+}
+
+template<typename T>
+T& Vector<T>::back()
+{
+    D3D12MA_HEAVY_ASSERT(m_Count > 0);
+    return m_pArray[m_Count - 1];
+}
+
+template<typename T>
+const T& Vector<T>::front() const
+{
+    D3D12MA_HEAVY_ASSERT(m_Count > 0);
+    return m_pArray[0];
+}
+
+template<typename T>
+const T& Vector<T>::back() const
+{
+    D3D12MA_HEAVY_ASSERT(m_Count > 0);
+    return m_pArray[m_Count - 1];
+}
+
+template<typename T>
+void Vector<T>::reserve(size_t newCapacity, bool freeMemory)
+{
+    newCapacity = D3D12MA_MAX(newCapacity, m_Count);
+
+    if ((newCapacity < m_Capacity) && !freeMemory)
+    {
+        newCapacity = m_Capacity;
+    }
+
+    if (newCapacity != m_Capacity)
+    {
+        T* const newArray = newCapacity ? AllocateArray<T>(m_AllocationCallbacks, newCapacity) : NULL;
+        if (m_Count != 0)
+        {
+            memcpy(newArray, m_pArray, m_Count * sizeof(T));
+        }
+        Free(m_AllocationCallbacks, m_pArray);
+        m_Capacity = newCapacity;
+        m_pArray = newArray;
+    }
+}
+
+template<typename T>
+void Vector<T>::resize(size_t newCount, bool freeMemory)
+{
+    size_t newCapacity = m_Capacity;
+    if (newCount > m_Capacity)
+    {
+        newCapacity = D3D12MA_MAX(newCount, D3D12MA_MAX(m_Capacity * 3 / 2, (size_t)8));
+    }
+    else if (freeMemory)
+    {
+        newCapacity = newCount;
+    }
+
+    if (newCapacity != m_Capacity)
+    {
+        T* const newArray = newCapacity ? AllocateArray<T>(m_AllocationCallbacks, newCapacity) : NULL;
+        const size_t elementsToCopy = D3D12MA_MIN(m_Count, newCount);
+        if (elementsToCopy != 0)
+        {
+            memcpy(newArray, m_pArray, elementsToCopy * sizeof(T));
+        }
+        Free(m_AllocationCallbacks, m_pArray);
+        m_Capacity = newCapacity;
+        m_pArray = newArray;
+    }
+
+    m_Count = newCount;
+}
+
+template<typename T>
+void Vector<T>::insert(size_t index, const T& src)
+{
+    D3D12MA_HEAVY_ASSERT(index <= m_Count);
+    const size_t oldCount = size();
+    resize(oldCount + 1);
+    if (index < oldCount)
+    {
+        memmove(m_pArray + (index + 1), m_pArray + index, (oldCount - index) * sizeof(T));
+    }
+    m_pArray[index] = src;
+}
+
+template<typename T>
+void Vector<T>::remove(size_t index)
+{
+    D3D12MA_HEAVY_ASSERT(index < m_Count);
+    const size_t oldCount = size();
+    if (index < oldCount - 1)
+    {
+        memmove(m_pArray + index, m_pArray + (index + 1), (oldCount - index - 1) * sizeof(T));
+    }
+    resize(oldCount - 1);
+}
+
+template<typename T> template<typename CmpLess>
+size_t Vector<T>::InsertSorted(const T& value, const CmpLess& cmp)
+{
+    const size_t indexToInsert = BinaryFindFirstNotLess<CmpLess, iterator, T>(
+        m_pArray,
+        m_pArray + m_Count,
+        value,
+        cmp) - m_pArray;
+    insert(indexToInsert, value);
+    return indexToInsert;
+}
+
+template<typename T> template<typename CmpLess>
+bool Vector<T>::RemoveSorted(const T& value, const CmpLess& cmp)
+{
+    const iterator it = BinaryFindFirstNotLess(
+        m_pArray,
+        m_pArray + m_Count,
+        value,
+        cmp);
+    if ((it != end()) && !cmp(*it, value) && !cmp(value, *it))
+    {
+        size_t indexToRemove = it - begin();
+        remove(indexToRemove);
+        return true;
+    }
+    return false;
+}
+
+template<typename T>
+Vector<T>& Vector<T>::operator=(const Vector<T>& rhs)
+{
+    if (&rhs != this)
+    {
+        resize(rhs.m_Count);
+        if (m_Count != 0)
+        {
+            memcpy(m_pArray, rhs.m_pArray, m_Count * sizeof(T));
+        }
+    }
+    return *this;
+}
+
+template<typename T>
+T& Vector<T>::operator[](size_t index)
+{
+    D3D12MA_HEAVY_ASSERT(index < m_Count);
+    return m_pArray[index];
+}
+
+template<typename T>
+const T& Vector<T>::operator[](size_t index) const
+{
+    D3D12MA_HEAVY_ASSERT(index < m_Count);
+    return m_pArray[index];
+}
+#endif // _D3D12MA_VECTOR_FUNCTIONS
+#endif // _D3D12MA_VECTOR
+
+#ifndef _D3D12MA_STRING_BUILDER
+class StringBuilder
+{
+public:
+    StringBuilder(const ALLOCATION_CALLBACKS& allocationCallbacks) : m_Data(allocationCallbacks) {}
+
+    size_t GetLength() const { return m_Data.size(); }
+    LPCWSTR GetData() const { return m_Data.data(); }
+
+    void Add(WCHAR ch) { m_Data.push_back(ch); }
+    void Add(LPCWSTR str);
+    void AddNewLine() { Add(L'\n'); }
+    void AddNumber(UINT num);
+    void AddNumber(UINT64 num);
+    void AddPointer(const void* ptr);
+
+private:
+    Vector<WCHAR> m_Data;
+};
+
+#ifndef _D3D12MA_STRING_BUILDER_FUNCTIONS
+void StringBuilder::Add(LPCWSTR str)
+{
+    const size_t len = wcslen(str);
+    if (len > 0)
+    {
+        const size_t oldCount = m_Data.size();
+        m_Data.resize(oldCount + len);
+        memcpy(m_Data.data() + oldCount, str, len * sizeof(WCHAR));
+    }
+}
+
+void StringBuilder::AddNumber(UINT num)
+{
+    WCHAR buf[11];
+    buf[10] = L'\0';
+    WCHAR *p = &buf[10];
+    do
+    {
+        *--p = L'0' + (num % 10);
+        num /= 10;
+    }
+    while (num);
+    Add(p);
+}
+
+void StringBuilder::AddNumber(UINT64 num)
+{
+    WCHAR buf[21];
+    buf[20] = L'\0';
+    WCHAR *p = &buf[20];
+    do
+    {
+        *--p = L'0' + (num % 10);
+        num /= 10;
+    }
+    while (num);
+    Add(p);
+}
+
+void StringBuilder::AddPointer(const void* ptr)
+{
+    WCHAR buf[21];
+    uintptr_t num = (uintptr_t)ptr;
+    buf[20] = L'\0';
+    WCHAR *p = &buf[20];
+    do
+    {
+        *--p = HexDigitToChar((UINT8)(num & 0xF));
+        num >>= 4;
+    }
+    while (num);
+    Add(p);
+}
+
+#endif // _D3D12MA_STRING_BUILDER_FUNCTIONS
+#endif // _D3D12MA_STRING_BUILDER
+
+#ifndef _D3D12MA_JSON_WRITER
+/*
+Allows to conveniently build a correct JSON document to be written to the
+StringBuilder passed to the constructor.
+*/
+class JsonWriter
+{
+public:
+    // stringBuilder - string builder to write the document to. Must remain alive for the whole lifetime of this object.
+    JsonWriter(const ALLOCATION_CALLBACKS& allocationCallbacks, StringBuilder& stringBuilder);
+    ~JsonWriter();
+
+    // Begins object by writing "{".
+    // Inside an object, you must call pairs of WriteString and a value, e.g.:
+    // j.BeginObject(true); j.WriteString("A"); j.WriteNumber(1); j.WriteString("B"); j.WriteNumber(2); j.EndObject();
+    // Will write: { "A": 1, "B": 2 }
+    void BeginObject(bool singleLine = false);
+    // Ends object by writing "}".
+    void EndObject();
+
+    // Begins array by writing "[".
+    // Inside an array, you can write a sequence of any values.
+    void BeginArray(bool singleLine = false);
+    // Ends array by writing "[".
+    void EndArray();
+
+    // Writes a string value inside "".
+    // pStr can contain any UTF-16 characters, including '"', new line etc. - they will be properly escaped.
+    void WriteString(LPCWSTR pStr);
+
+    // Begins writing a string value.
+    // Call BeginString, ContinueString, ContinueString, ..., EndString instead of
+    // WriteString to conveniently build the string content incrementally, made of
+    // parts including numbers.
+    void BeginString(LPCWSTR pStr = NULL);
+    // Posts next part of an open string.
+    void ContinueString(LPCWSTR pStr);
+    // Posts next part of an open string. The number is converted to decimal characters.
+    void ContinueString(UINT num);
+    void ContinueString(UINT64 num);
+    void ContinueString_Pointer(const void* ptr);
+    // Posts next part of an open string. Pointer value is converted to characters
+    // using "%p" formatting - shown as hexadecimal number, e.g.: 000000081276Ad00
+    // void ContinueString_Pointer(const void* ptr);
+    // Ends writing a string value by writing '"'.
+    void EndString(LPCWSTR pStr = NULL);
+
+    // Writes a number value.
+    void WriteNumber(UINT num);
+    void WriteNumber(UINT64 num);
+    // Writes a boolean value - false or true.
+    void WriteBool(bool b);
+    // Writes a null value.
+    void WriteNull();
+
+    void AddAllocationToObject(const Allocation& alloc);
+    void AddDetailedStatisticsInfoObject(const DetailedStatistics& stats);
+
+private:
+    static const WCHAR* const INDENT;
+
+    enum CollectionType
+    {
+        COLLECTION_TYPE_OBJECT,
+        COLLECTION_TYPE_ARRAY,
+    };
+    struct StackItem
+    {
+        CollectionType type;
+        UINT valueCount;
+        bool singleLineMode;
+    };
+
+    StringBuilder& m_SB;
+    Vector<StackItem> m_Stack;
+    bool m_InsideString;
+
+    void BeginValue(bool isString);
+    void WriteIndent(bool oneLess = false);
+};
+
+#ifndef _D3D12MA_JSON_WRITER_FUNCTIONS
+const WCHAR* const JsonWriter::INDENT = L"  ";
+
+JsonWriter::JsonWriter(const ALLOCATION_CALLBACKS& allocationCallbacks, StringBuilder& stringBuilder)
+    : m_SB(stringBuilder),
+    m_Stack(allocationCallbacks),
+    m_InsideString(false) {}
+
+JsonWriter::~JsonWriter()
+{
+    D3D12MA_ASSERT(!m_InsideString);
+    D3D12MA_ASSERT(m_Stack.empty());
+}
+
+void JsonWriter::BeginObject(bool singleLine)
+{
+    D3D12MA_ASSERT(!m_InsideString);
+
+    BeginValue(false);
+    m_SB.Add(L'{');
+
+    StackItem stackItem;
+    stackItem.type = COLLECTION_TYPE_OBJECT;
+    stackItem.valueCount = 0;
+    stackItem.singleLineMode = singleLine;
+    m_Stack.push_back(stackItem);
+}
+
+void JsonWriter::EndObject()
+{
+    D3D12MA_ASSERT(!m_InsideString);
+    D3D12MA_ASSERT(!m_Stack.empty() && m_Stack.back().type == COLLECTION_TYPE_OBJECT);
+    D3D12MA_ASSERT(m_Stack.back().valueCount % 2 == 0);
+
+    WriteIndent(true);
+    m_SB.Add(L'}');
+
+    m_Stack.pop_back();
+}
+
+void JsonWriter::BeginArray(bool singleLine)
+{
+    D3D12MA_ASSERT(!m_InsideString);
+
+    BeginValue(false);
+    m_SB.Add(L'[');
+
+    StackItem stackItem;
+    stackItem.type = COLLECTION_TYPE_ARRAY;
+    stackItem.valueCount = 0;
+    stackItem.singleLineMode = singleLine;
+    m_Stack.push_back(stackItem);
+}
+
+void JsonWriter::EndArray()
+{
+    D3D12MA_ASSERT(!m_InsideString);
+    D3D12MA_ASSERT(!m_Stack.empty() && m_Stack.back().type == COLLECTION_TYPE_ARRAY);
+
+    WriteIndent(true);
+    m_SB.Add(L']');
+
+    m_Stack.pop_back();
+}
+
+void JsonWriter::WriteString(LPCWSTR pStr)
+{
+    BeginString(pStr);
+    EndString();
+}
+
+void JsonWriter::BeginString(LPCWSTR pStr)
+{
+    D3D12MA_ASSERT(!m_InsideString);
+
+    BeginValue(true);
+    m_InsideString = true;
+    m_SB.Add(L'"');
+    if (pStr != NULL)
+    {
+        ContinueString(pStr);
+    }
+}
+
+void JsonWriter::ContinueString(LPCWSTR pStr)
+{
+    D3D12MA_ASSERT(m_InsideString);
+    D3D12MA_ASSERT(pStr);
+
+    for (const WCHAR *p = pStr; *p; ++p)
+    {
+        // the strings we encode are assumed to be in UTF-16LE format, the native
+        // windows wide character Unicode format. In this encoding Unicode code
+        // points U+0000 to U+D7FF and U+E000 to U+FFFF are encoded in two bytes,
+        // and everything else takes more than two bytes. We will reject any
+        // multi wchar character encodings for simplicity.
+        UINT val = (UINT)*p;
+        D3D12MA_ASSERT(((val <= 0xD7FF) || (0xE000 <= val && val <= 0xFFFF)) &&
+            "Character not currently supported.");
+        switch (*p)
+        {
+        case L'"':  m_SB.Add(L'\\'); m_SB.Add(L'"');  break;
+        case L'\\': m_SB.Add(L'\\'); m_SB.Add(L'\\'); break;
+        case L'/':  m_SB.Add(L'\\'); m_SB.Add(L'/');  break;
+        case L'\b': m_SB.Add(L'\\'); m_SB.Add(L'b');  break;
+        case L'\f': m_SB.Add(L'\\'); m_SB.Add(L'f');  break;
+        case L'\n': m_SB.Add(L'\\'); m_SB.Add(L'n');  break;
+        case L'\r': m_SB.Add(L'\\'); m_SB.Add(L'r');  break;
+        case L'\t': m_SB.Add(L'\\'); m_SB.Add(L't');  break;
+        default:
+            // conservatively use encoding \uXXXX for any Unicode character
+            // requiring more than one byte.
+            if (32 <= val && val < 256)
+                m_SB.Add(*p);
+            else
+            {
+                m_SB.Add(L'\\');
+                m_SB.Add(L'u');
+                for (UINT i = 0; i < 4; ++i)
+                {
+                    UINT hexDigit = (val & 0xF000) >> 12;
+                    val <<= 4;
+                    if (hexDigit < 10)
+                        m_SB.Add(L'0' + (WCHAR)hexDigit);
+                    else
+                        m_SB.Add(L'A' + (WCHAR)hexDigit);
+                }
+            }
+            break;
+        }
+    }
+}
+
+void JsonWriter::ContinueString(UINT num)
+{
+    D3D12MA_ASSERT(m_InsideString);
+    m_SB.AddNumber(num);
+}
+
+void JsonWriter::ContinueString(UINT64 num)
+{
+    D3D12MA_ASSERT(m_InsideString);
+    m_SB.AddNumber(num);
+}
+
+void JsonWriter::ContinueString_Pointer(const void* ptr)
+{
+    D3D12MA_ASSERT(m_InsideString);
+    m_SB.AddPointer(ptr);
+}
+
+void JsonWriter::EndString(LPCWSTR pStr)
+{
+    D3D12MA_ASSERT(m_InsideString);
+
+    if (pStr)
+        ContinueString(pStr);
+    m_SB.Add(L'"');
+    m_InsideString = false;
+}
+
+void JsonWriter::WriteNumber(UINT num)
+{
+    D3D12MA_ASSERT(!m_InsideString);
+    BeginValue(false);
+    m_SB.AddNumber(num);
+}
+
+void JsonWriter::WriteNumber(UINT64 num)
+{
+    D3D12MA_ASSERT(!m_InsideString);
+    BeginValue(false);
+    m_SB.AddNumber(num);
+}
+
+void JsonWriter::WriteBool(bool b)
+{
+    D3D12MA_ASSERT(!m_InsideString);
+    BeginValue(false);
+    if (b)
+        m_SB.Add(L"true");
+    else
+        m_SB.Add(L"false");
+}
+
+void JsonWriter::WriteNull()
+{
+    D3D12MA_ASSERT(!m_InsideString);
+    BeginValue(false);
+    m_SB.Add(L"null");
+}
+
+void JsonWriter::AddAllocationToObject(const Allocation& alloc)
+{
+    WriteString(L"Type");
+    switch (alloc.m_PackedData.GetResourceDimension()) {
+    case D3D12_RESOURCE_DIMENSION_UNKNOWN:
+        WriteString(L"UNKNOWN");
+        break;
+    case D3D12_RESOURCE_DIMENSION_BUFFER:
+        WriteString(L"BUFFER");
+        break;
+    case D3D12_RESOURCE_DIMENSION_TEXTURE1D:
+        WriteString(L"TEXTURE1D");
+        break;
+    case D3D12_RESOURCE_DIMENSION_TEXTURE2D:
+        WriteString(L"TEXTURE2D");
+        break;
+    case D3D12_RESOURCE_DIMENSION_TEXTURE3D:
+        WriteString(L"TEXTURE3D");
+        break;
+    default: D3D12MA_ASSERT(0); break;
+    }
+
+    WriteString(L"Size");
+    WriteNumber(alloc.GetSize());
+    WriteString(L"Usage");
+    WriteNumber((UINT)alloc.m_PackedData.GetResourceFlags());
+
+    void* privateData = alloc.GetPrivateData();
+    if (privateData)
+    {
+        WriteString(L"CustomData");
+        BeginString();
+        ContinueString_Pointer(privateData);
+        EndString();
+    }
+
+    LPCWSTR name = alloc.GetName();
+    if (name != NULL)
+    {
+        WriteString(L"Name");
+        WriteString(name);
+    }
+    if (alloc.m_PackedData.GetTextureLayout())
+    {
+        WriteString(L"Layout");
+        WriteNumber((UINT)alloc.m_PackedData.GetTextureLayout());
+    }
+}
+
+void JsonWriter::AddDetailedStatisticsInfoObject(const DetailedStatistics& stats)
+{
+    BeginObject();
+
+    WriteString(L"BlockCount");
+    WriteNumber(stats.Stats.BlockCount);
+    WriteString(L"BlockBytes");
+    WriteNumber(stats.Stats.BlockBytes);
+    WriteString(L"AllocationCount");
+    WriteNumber(stats.Stats.AllocationCount);
+    WriteString(L"AllocationBytes");
+    WriteNumber(stats.Stats.AllocationBytes);
+    WriteString(L"UnusedRangeCount");
+    WriteNumber(stats.UnusedRangeCount);
+
+    if (stats.Stats.AllocationCount > 1)
+    {
+        WriteString(L"AllocationSizeMin");
+        WriteNumber(stats.AllocationSizeMin);
+        WriteString(L"AllocationSizeMax");
+        WriteNumber(stats.AllocationSizeMax);
+    }
+    if (stats.UnusedRangeCount > 1)
+    {
+        WriteString(L"UnusedRangeSizeMin");
+        WriteNumber(stats.UnusedRangeSizeMin);
+        WriteString(L"UnusedRangeSizeMax");
+        WriteNumber(stats.UnusedRangeSizeMax);
+    }
+    EndObject();
+}
+
+void JsonWriter::BeginValue(bool isString)
+{
+    if (!m_Stack.empty())
+    {
+        StackItem& currItem = m_Stack.back();
+        if (currItem.type == COLLECTION_TYPE_OBJECT && currItem.valueCount % 2 == 0)
+        {
+            D3D12MA_ASSERT(isString);
+        }
+
+        if (currItem.type == COLLECTION_TYPE_OBJECT && currItem.valueCount % 2 == 1)
+        {
+            m_SB.Add(L':'); m_SB.Add(L' ');
+        }
+        else if (currItem.valueCount > 0)
+        {
+            m_SB.Add(L','); m_SB.Add(L' ');
+            WriteIndent();
+        }
+        else
+        {
+            WriteIndent();
+        }
+        ++currItem.valueCount;
+    }
+}
+
+void JsonWriter::WriteIndent(bool oneLess)
+{
+    if (!m_Stack.empty() && !m_Stack.back().singleLineMode)
+    {
+        m_SB.AddNewLine();
+
+        size_t count = m_Stack.size();
+        if (count > 0 && oneLess)
+        {
+            --count;
+        }
+        for (size_t i = 0; i < count; ++i)
+        {
+            m_SB.Add(INDENT);
+        }
+    }
+}
+#endif // _D3D12MA_JSON_WRITER_FUNCTIONS
+#endif // _D3D12MA_JSON_WRITER
+
+#ifndef _D3D12MA_POOL_ALLOCATOR
+/*
+Allocator for objects of type T using a list of arrays (pools) to speed up
+allocation. Number of elements that can be allocated is not bounded because
+allocator can create multiple blocks.
+T should be POD because constructor and destructor is not called in Alloc or
+Free.
+*/
+template<typename T>
+class PoolAllocator
+{
+    D3D12MA_CLASS_NO_COPY(PoolAllocator)
+public:
+    // allocationCallbacks externally owned, must outlive this object.
+    PoolAllocator(const ALLOCATION_CALLBACKS& allocationCallbacks, UINT firstBlockCapacity);
+    ~PoolAllocator() { Clear(); }
+
+    void Clear();
+    template<typename... Types>
+    T* Alloc(Types... args);
+    void Free(T* ptr);
+
+private:
+    union Item
+    {
+        UINT NextFreeIndex; // UINT32_MAX means end of list.
+        alignas(T) char Value[sizeof(T)];
+    };
+
+    struct ItemBlock
+    {
+        Item* pItems;
+        UINT Capacity;
+        UINT FirstFreeIndex;
+    };
+
+    const ALLOCATION_CALLBACKS& m_AllocationCallbacks;
+    const UINT m_FirstBlockCapacity;
+    Vector<ItemBlock> m_ItemBlocks;
+
+    ItemBlock& CreateNewBlock();
+};
+
+#ifndef _D3D12MA_POOL_ALLOCATOR_FUNCTIONS
+template<typename T>
+PoolAllocator<T>::PoolAllocator(const ALLOCATION_CALLBACKS& allocationCallbacks, UINT firstBlockCapacity)
+    : m_AllocationCallbacks(allocationCallbacks),
+    m_FirstBlockCapacity(firstBlockCapacity),
+    m_ItemBlocks(allocationCallbacks)
+{
+    D3D12MA_ASSERT(m_FirstBlockCapacity > 1);
+}
+
+template<typename T>
+void PoolAllocator<T>::Clear()
+{
+    for(size_t i = m_ItemBlocks.size(); i--; )
+    {
+        D3D12MA_DELETE_ARRAY(m_AllocationCallbacks, m_ItemBlocks[i].pItems, m_ItemBlocks[i].Capacity);
+    }
+    m_ItemBlocks.clear(true);
+}
+
+template<typename T> template<typename... Types>
+T* PoolAllocator<T>::Alloc(Types... args)
+{
+    for(size_t i = m_ItemBlocks.size(); i--; )
+    {
+        ItemBlock& block = m_ItemBlocks[i];
+        // This block has some free items: Use first one.
+        if(block.FirstFreeIndex != UINT32_MAX)
+        {
+            Item* const pItem = &block.pItems[block.FirstFreeIndex];
+            block.FirstFreeIndex = pItem->NextFreeIndex;
+            T* result = (T*)&pItem->Value;
+            new(result)T(std::forward<Types>(args)...); // Explicit constructor call.
+            return result;
+        }
+    }
+
+    // No block has free item: Create new one and use it.
+    ItemBlock& newBlock = CreateNewBlock();
+    Item* const pItem = &newBlock.pItems[0];
+    newBlock.FirstFreeIndex = pItem->NextFreeIndex;
+    T* result = (T*)pItem->Value;
+    new(result)T(std::forward<Types>(args)...); // Explicit constructor call.
+    return result;
+}
+
+template<typename T>
+void PoolAllocator<T>::Free(T* ptr)
+{
+    // Search all memory blocks to find ptr.
+    for(size_t i = m_ItemBlocks.size(); i--; )
+    {
+        ItemBlock& block = m_ItemBlocks[i];
+
+        Item* pItemPtr;
+        memcpy(&pItemPtr, &ptr, sizeof(pItemPtr));
+
+        // Check if pItemPtr is in address range of this block.
+        if((pItemPtr >= block.pItems) && (pItemPtr < block.pItems + block.Capacity))
+        {
+            ptr->~T(); // Explicit destructor call.
+            const UINT index = static_cast<UINT>(pItemPtr - block.pItems);
+            pItemPtr->NextFreeIndex = block.FirstFreeIndex;
+            block.FirstFreeIndex = index;
+            return;
+        }
+    }
+    D3D12MA_ASSERT(0 && "Pointer doesn't belong to this memory pool.");
+}
+
+template<typename T>
+typename PoolAllocator<T>::ItemBlock& PoolAllocator<T>::CreateNewBlock()
+{
+    const UINT newBlockCapacity = m_ItemBlocks.empty() ?
+        m_FirstBlockCapacity : m_ItemBlocks.back().Capacity * 3 / 2;
+
+    const ItemBlock newBlock = {
+        D3D12MA_NEW_ARRAY(m_AllocationCallbacks, Item, newBlockCapacity),
+        newBlockCapacity,
+        0 };
+
+    m_ItemBlocks.push_back(newBlock);
+
+    // Setup singly-linked list of all free items in this block.
+    for(UINT i = 0; i < newBlockCapacity - 1; ++i)
+    {
+        newBlock.pItems[i].NextFreeIndex = i + 1;
+    }
+    newBlock.pItems[newBlockCapacity - 1].NextFreeIndex = UINT32_MAX;
+    return m_ItemBlocks.back();
+}
+#endif // _D3D12MA_POOL_ALLOCATOR_FUNCTIONS
+#endif // _D3D12MA_POOL_ALLOCATOR
+
+#ifndef _D3D12MA_LIST
+/*
+Doubly linked list, with elements allocated out of PoolAllocator.
+Has custom interface, as well as STL-style interface, including iterator and
+const_iterator.
+*/
+template<typename T>
+class List
+{
+    D3D12MA_CLASS_NO_COPY(List)
+public:
+    struct Item
+    {
+        Item* pPrev;
+        Item* pNext;
+        T Value;
+    };
+
+    class reverse_iterator;
+    class const_reverse_iterator;
+    class iterator
+    {
+        friend class List<T>;
+        friend class const_iterator;
+
+    public:
+        iterator() = default;
+        iterator(const reverse_iterator& src)
+            : m_pList(src.m_pList), m_pItem(src.m_pItem) {}
+
+        T& operator*() const;
+        T* operator->() const;
+
+        iterator& operator++();
+        iterator& operator--();
+        iterator operator++(int);
+        iterator operator--(int);
+
+        bool operator==(const iterator& rhs) const;
+        bool operator!=(const iterator& rhs) const;
+
+    private:
+        List<T>* m_pList = NULL;
+        Item* m_pItem = NULL;
+
+        iterator(List<T>* pList, Item* pItem) : m_pList(pList), m_pItem(pItem) {}
+    };
+
+    class reverse_iterator
+    {
+        friend class List<T>;
+        friend class const_reverse_iterator;
+
+    public:
+        reverse_iterator() = default;
+        reverse_iterator(const iterator& src)
+            : m_pList(src.m_pList), m_pItem(src.m_pItem) {}
+
+        T& operator*() const;
+        T* operator->() const;
+
+        reverse_iterator& operator++();
+        reverse_iterator& operator--();
+        reverse_iterator operator++(int);
+        reverse_iterator operator--(int);
+
+        bool operator==(const reverse_iterator& rhs) const;
+        bool operator!=(const reverse_iterator& rhs) const;
+
+    private:
+        List<T>* m_pList = NULL;
+        Item* m_pItem = NULL;
+
+        reverse_iterator(List<T>* pList, Item* pItem)
+            : m_pList(pList), m_pItem(pItem) {}
+    };
+
+    class const_iterator
+    {
+        friend class List<T>;
+
+    public:
+        const_iterator() = default;
+        const_iterator(const iterator& src)
+            : m_pList(src.m_pList), m_pItem(src.m_pItem) {}
+        const_iterator(const reverse_iterator& src)
+            : m_pList(src.m_pList), m_pItem(src.m_pItem) {}
+        const_iterator(const const_reverse_iterator& src)
+            : m_pList(src.m_pList), m_pItem(src.m_pItem) {}
+
+        iterator dropConst() const;
+        const T& operator*() const;
+        const T* operator->() const;
+
+        const_iterator& operator++();
+        const_iterator& operator--();
+        const_iterator operator++(int);
+        const_iterator operator--(int);
+
+        bool operator==(const const_iterator& rhs) const;
+        bool operator!=(const const_iterator& rhs) const;
+
+    private:
+        const List<T>* m_pList = NULL;
+        const Item* m_pItem = NULL;
+
+        const_iterator(const List<T>* pList, const Item* pItem)
+            : m_pList(pList), m_pItem(pItem) {}
+    };
+
+    class const_reverse_iterator
+    {
+        friend class List<T>;
+
+    public:
+        const_reverse_iterator() = default;
+        const_reverse_iterator(const iterator& src)
+            : m_pList(src.m_pList), m_pItem(src.m_pItem) {}
+        const_reverse_iterator(const reverse_iterator& src)
+            : m_pList(src.m_pList), m_pItem(src.m_pItem) {}
+        const_reverse_iterator(const const_iterator& src)
+            : m_pList(src.m_pList), m_pItem(src.m_pItem) {}
+
+        reverse_iterator dropConst() const;
+        const T& operator*() const;
+        const T* operator->() const;
+
+        const_reverse_iterator& operator++();
+        const_reverse_iterator& operator--();
+        const_reverse_iterator operator++(int);
+        const_reverse_iterator operator--(int);
+
+        bool operator==(const const_reverse_iterator& rhs) const;
+        bool operator!=(const const_reverse_iterator& rhs) const;
+
+    private:
+        const List<T>* m_pList = NULL;
+        const Item* m_pItem = NULL;
+
+        const_reverse_iterator(const List<T>* pList, const Item* pItem)
+            : m_pList(pList), m_pItem(pItem) {}
+    };
+
+    // allocationCallbacks externally owned, must outlive this object.
+    List(const ALLOCATION_CALLBACKS& allocationCallbacks);
+    // Intentionally not calling Clear, because that would be unnecessary
+    // computations to return all items to m_ItemAllocator as free.
+    ~List() = default;
+    
+    size_t GetCount() const { return m_Count; }
+    bool IsEmpty() const { return m_Count == 0; }
+
+    Item* Front() { return m_pFront; }
+    const Item* Front() const { return m_pFront; }
+    Item* Back() { return m_pBack; }
+    const Item* Back() const { return m_pBack; }
+
+    bool empty() const { return IsEmpty(); }
+    size_t size() const { return GetCount(); }
+    void push_back(const T& value) { PushBack(value); }
+    iterator insert(iterator it, const T& value) { return iterator(this, InsertBefore(it.m_pItem, value)); }
+    void clear() { Clear(); }
+    void erase(iterator it) { Remove(it.m_pItem); }
+
+    iterator begin() { return iterator(this, Front()); }
+    iterator end() { return iterator(this, NULL); }
+    reverse_iterator rbegin() { return reverse_iterator(this, Back()); }
+    reverse_iterator rend() { return reverse_iterator(this, NULL); }
+
+    const_iterator cbegin() const { return const_iterator(this, Front()); }
+    const_iterator cend() const { return const_iterator(this, NULL); }
+    const_iterator begin() const { return cbegin(); }
+    const_iterator end() const { return cend(); }
+
+    const_reverse_iterator crbegin() const { return const_reverse_iterator(this, Back()); }
+    const_reverse_iterator crend() const { return const_reverse_iterator(this, NULL); }
+    const_reverse_iterator rbegin() const { return crbegin(); }
+    const_reverse_iterator rend() const { return crend(); }
+
+    Item* PushBack();
+    Item* PushFront();
+    Item* PushBack(const T& value);
+    Item* PushFront(const T& value);
+    void PopBack();
+    void PopFront();
+
+    // Item can be null - it means PushBack.
+    Item* InsertBefore(Item* pItem);
+    // Item can be null - it means PushFront.
+    Item* InsertAfter(Item* pItem);
+    Item* InsertBefore(Item* pItem, const T& value);
+    Item* InsertAfter(Item* pItem, const T& value);
+
+    void Clear();
+    void Remove(Item* pItem);
+
+private:
+    const ALLOCATION_CALLBACKS& m_AllocationCallbacks;
+    PoolAllocator<Item> m_ItemAllocator;
+    Item* m_pFront;
+    Item* m_pBack;
+    size_t m_Count;
+};
+
+#ifndef _D3D12MA_LIST_ITERATOR_FUNCTIONS
+template<typename T>
+T& List<T>::iterator::operator*() const
+{
+    D3D12MA_HEAVY_ASSERT(m_pItem != NULL);
+    return m_pItem->Value;
+}
+
+template<typename T>
+T* List<T>::iterator::operator->() const
+{
+    D3D12MA_HEAVY_ASSERT(m_pItem != NULL);
+    return &m_pItem->Value;
+}
+
+template<typename T>
+typename List<T>::iterator& List<T>::iterator::operator++()
+{
+    D3D12MA_HEAVY_ASSERT(m_pItem != NULL);
+    m_pItem = m_pItem->pNext;
+    return *this;
+}
+
+template<typename T>
+typename List<T>::iterator& List<T>::iterator::operator--()
+{
+    if (m_pItem != NULL)
+    {
+        m_pItem = m_pItem->pPrev;
+    }
+    else
+    {
+        D3D12MA_HEAVY_ASSERT(!m_pList->IsEmpty());
+        m_pItem = m_pList->Back();
+    }
+    return *this;
+}
+
+template<typename T>
+typename List<T>::iterator List<T>::iterator::operator++(int)
+{
+    iterator result = *this;
+    ++* this;
+    return result;
+}
+
+template<typename T>
+typename List<T>::iterator List<T>::iterator::operator--(int)
+{
+    iterator result = *this;
+    --* this;
+    return result;
+}
+
+template<typename T>
+bool List<T>::iterator::operator==(const iterator& rhs) const
+{
+    D3D12MA_HEAVY_ASSERT(m_pList == rhs.m_pList);
+    return m_pItem == rhs.m_pItem;
+}
+
+template<typename T>
+bool List<T>::iterator::operator!=(const iterator& rhs) const
+{
+    D3D12MA_HEAVY_ASSERT(m_pList == rhs.m_pList);
+    return m_pItem != rhs.m_pItem;
+}
+#endif // _D3D12MA_LIST_ITERATOR_FUNCTIONS
+
+#ifndef _D3D12MA_LIST_REVERSE_ITERATOR_FUNCTIONS
+template<typename T>
+T& List<T>::reverse_iterator::operator*() const
+{
+    D3D12MA_HEAVY_ASSERT(m_pItem != NULL);
+    return m_pItem->Value;
+}
+
+template<typename T>
+T* List<T>::reverse_iterator::operator->() const
+{
+    D3D12MA_HEAVY_ASSERT(m_pItem != NULL);
+    return &m_pItem->Value;
+}
+
+template<typename T>
+typename List<T>::reverse_iterator& List<T>::reverse_iterator::operator++()
+{
+    D3D12MA_HEAVY_ASSERT(m_pItem != NULL);
+    m_pItem = m_pItem->pPrev;
+    return *this;
+}
+
+template<typename T>
+typename List<T>::reverse_iterator& List<T>::reverse_iterator::operator--()
+{
+    if (m_pItem != NULL)
+    {
+        m_pItem = m_pItem->pNext;
+    }
+    else
+    {
+        D3D12MA_HEAVY_ASSERT(!m_pList->IsEmpty());
+        m_pItem = m_pList->Front();
+    }
+    return *this;
+}
+
+template<typename T>
+typename List<T>::reverse_iterator List<T>::reverse_iterator::operator++(int)
+{
+    reverse_iterator result = *this;
+    ++* this;
+    return result;
+}
+
+template<typename T>
+typename List<T>::reverse_iterator List<T>::reverse_iterator::operator--(int)
+{
+    reverse_iterator result = *this;
+    --* this;
+    return result;
+}
+
+template<typename T>
+bool List<T>::reverse_iterator::operator==(const reverse_iterator& rhs) const
+{
+    D3D12MA_HEAVY_ASSERT(m_pList == rhs.m_pList);
+    return m_pItem == rhs.m_pItem;
+}
+
+template<typename T>
+bool List<T>::reverse_iterator::operator!=(const reverse_iterator& rhs) const
+{
+    D3D12MA_HEAVY_ASSERT(m_pList == rhs.m_pList);
+    return m_pItem != rhs.m_pItem;
+}
+#endif // _D3D12MA_LIST_REVERSE_ITERATOR_FUNCTIONS
+
+#ifndef _D3D12MA_LIST_CONST_ITERATOR_FUNCTIONS
+template<typename T>
+typename List<T>::iterator List<T>::const_iterator::dropConst() const
+{
+    return iterator(const_cast<List<T>*>(m_pList), const_cast<Item*>(m_pItem));
+}
+
+template<typename T>
+const T& List<T>::const_iterator::operator*() const
+{
+    D3D12MA_HEAVY_ASSERT(m_pItem != NULL);
+    return m_pItem->Value;
+}
+
+template<typename T>
+const T* List<T>::const_iterator::operator->() const
+{
+    D3D12MA_HEAVY_ASSERT(m_pItem != NULL);
+    return &m_pItem->Value;
+}
+
+template<typename T>
+typename List<T>::const_iterator& List<T>::const_iterator::operator++()
+{
+    D3D12MA_HEAVY_ASSERT(m_pItem != NULL);
+    m_pItem = m_pItem->pNext;
+    return *this;
+}
+
+template<typename T>
+typename List<T>::const_iterator& List<T>::const_iterator::operator--()
+{
+    if (m_pItem != NULL)
+    {
+        m_pItem = m_pItem->pPrev;
+    }
+    else
+    {
+        D3D12MA_HEAVY_ASSERT(!m_pList->IsEmpty());
+        m_pItem = m_pList->Back();
+    }
+    return *this;
+}
+
+template<typename T>
+typename List<T>::const_iterator List<T>::const_iterator::operator++(int)
+{
+    const_iterator result = *this;
+    ++* this;
+    return result;
+}
+
+template<typename T>
+typename List<T>::const_iterator List<T>::const_iterator::operator--(int)
+{
+    const_iterator result = *this;
+    --* this;
+    return result;
+}
+
+template<typename T>
+bool List<T>::const_iterator::operator==(const const_iterator& rhs) const
+{
+    D3D12MA_HEAVY_ASSERT(m_pList == rhs.m_pList);
+    return m_pItem == rhs.m_pItem;
+}
+
+template<typename T>
+bool List<T>::const_iterator::operator!=(const const_iterator& rhs) const
+{
+    D3D12MA_HEAVY_ASSERT(m_pList == rhs.m_pList);
+    return m_pItem != rhs.m_pItem;
+}
+#endif // _D3D12MA_LIST_CONST_ITERATOR_FUNCTIONS
+
+#ifndef _D3D12MA_LIST_CONST_REVERSE_ITERATOR_FUNCTIONS
+template<typename T>
+typename List<T>::reverse_iterator List<T>::const_reverse_iterator::dropConst() const
+{
+    return reverse_iterator(const_cast<List<T>*>(m_pList), const_cast<Item*>(m_pItem));
+}
+
+template<typename T>
+const T& List<T>::const_reverse_iterator::operator*() const
+{
+    D3D12MA_HEAVY_ASSERT(m_pItem != NULL);
+    return m_pItem->Value;
+}
+
+template<typename T>
+const T* List<T>::const_reverse_iterator::operator->() const
+{
+    D3D12MA_HEAVY_ASSERT(m_pItem != NULL);
+    return &m_pItem->Value;
+}
+
+template<typename T>
+typename List<T>::const_reverse_iterator& List<T>::const_reverse_iterator::operator++()
+{
+    D3D12MA_HEAVY_ASSERT(m_pItem != NULL);
+    m_pItem = m_pItem->pPrev;
+    return *this;
+}
+
+template<typename T>
+typename List<T>::const_reverse_iterator& List<T>::const_reverse_iterator::operator--()
+{
+    if (m_pItem != NULL)
+    {
+        m_pItem = m_pItem->pNext;
+    }
+    else
+    {
+        D3D12MA_HEAVY_ASSERT(!m_pList->IsEmpty());
+        m_pItem = m_pList->Front();
+    }
+    return *this;
+}
+
+template<typename T>
+typename List<T>::const_reverse_iterator List<T>::const_reverse_iterator::operator++(int)
+{
+    const_reverse_iterator result = *this;
+    ++* this;
+    return result;
+}
+
+template<typename T>
+typename List<T>::const_reverse_iterator List<T>::const_reverse_iterator::operator--(int)
+{
+    const_reverse_iterator result = *this;
+    --* this;
+    return result;
+}
+
+template<typename T>
+bool List<T>::const_reverse_iterator::operator==(const const_reverse_iterator& rhs) const
+{
+    D3D12MA_HEAVY_ASSERT(m_pList == rhs.m_pList);
+    return m_pItem == rhs.m_pItem;
+}
+
+template<typename T>
+bool List<T>::const_reverse_iterator::operator!=(const const_reverse_iterator& rhs) const
+{
+    D3D12MA_HEAVY_ASSERT(m_pList == rhs.m_pList);
+    return m_pItem != rhs.m_pItem;
+}
+#endif // _D3D12MA_LIST_CONST_REVERSE_ITERATOR_FUNCTIONS
+
+#ifndef _D3D12MA_LIST_FUNCTIONS
+template<typename T>
+List<T>::List(const ALLOCATION_CALLBACKS& allocationCallbacks)
+    : m_AllocationCallbacks(allocationCallbacks),
+    m_ItemAllocator(allocationCallbacks, 128),
+    m_pFront(NULL),
+    m_pBack(NULL),
+    m_Count(0) {}
+
+template<typename T>
+void List<T>::Clear()
+{
+    if(!IsEmpty())
+    {
+        Item* pItem = m_pBack;
+        while(pItem != NULL)
+        {
+            Item* const pPrevItem = pItem->pPrev;
+            m_ItemAllocator.Free(pItem);
+            pItem = pPrevItem;
+        }
+        m_pFront = NULL;
+        m_pBack = NULL;
+        m_Count = 0;
+    }
+}
+
+template<typename T>
+typename List<T>::Item* List<T>::PushBack()
+{
+    Item* const pNewItem = m_ItemAllocator.Alloc();
+    pNewItem->pNext = NULL;
+    if(IsEmpty())
+    {
+        pNewItem->pPrev = NULL;
+        m_pFront = pNewItem;
+        m_pBack = pNewItem;
+        m_Count = 1;
+    }
+    else
+    {
+        pNewItem->pPrev = m_pBack;
+        m_pBack->pNext = pNewItem;
+        m_pBack = pNewItem;
+        ++m_Count;
+    }
+    return pNewItem;
+}
+
+template<typename T>
+typename List<T>::Item* List<T>::PushFront()
+{
+    Item* const pNewItem = m_ItemAllocator.Alloc();
+    pNewItem->pPrev = NULL;
+    if(IsEmpty())
+    {
+        pNewItem->pNext = NULL;
+        m_pFront = pNewItem;
+        m_pBack = pNewItem;
+        m_Count = 1;
+    }
+    else
+    {
+        pNewItem->pNext = m_pFront;
+        m_pFront->pPrev = pNewItem;
+        m_pFront = pNewItem;
+        ++m_Count;
+    }
+    return pNewItem;
+}
+
+template<typename T>
+typename List<T>::Item* List<T>::PushBack(const T& value)
+{
+    Item* const pNewItem = PushBack();
+    pNewItem->Value = value;
+    return pNewItem;
+}
+
+template<typename T>
+typename List<T>::Item* List<T>::PushFront(const T& value)
+{
+    Item* const pNewItem = PushFront();
+    pNewItem->Value = value;
+    return pNewItem;
+}
+
+template<typename T>
+void List<T>::PopBack()
+{
+    D3D12MA_HEAVY_ASSERT(m_Count > 0);
+    Item* const pBackItem = m_pBack;
+    Item* const pPrevItem = pBackItem->pPrev;
+    if(pPrevItem != NULL)
+    {
+        pPrevItem->pNext = NULL;
+    }
+    m_pBack = pPrevItem;
+    m_ItemAllocator.Free(pBackItem);
+    --m_Count;
+}
+
+template<typename T>
+void List<T>::PopFront()
+{
+    D3D12MA_HEAVY_ASSERT(m_Count > 0);
+    Item* const pFrontItem = m_pFront;
+    Item* const pNextItem = pFrontItem->pNext;
+    if(pNextItem != NULL)
+    {
+        pNextItem->pPrev = NULL;
+    }
+    m_pFront = pNextItem;
+    m_ItemAllocator.Free(pFrontItem);
+    --m_Count;
+}
+
+template<typename T>
+void List<T>::Remove(Item* pItem)
+{
+    D3D12MA_HEAVY_ASSERT(pItem != NULL);
+    D3D12MA_HEAVY_ASSERT(m_Count > 0);
+
+    if(pItem->pPrev != NULL)
+    {
+        pItem->pPrev->pNext = pItem->pNext;
+    }
+    else
+    {
+        D3D12MA_HEAVY_ASSERT(m_pFront == pItem);
+        m_pFront = pItem->pNext;
+    }
+
+    if(pItem->pNext != NULL)
+    {
+        pItem->pNext->pPrev = pItem->pPrev;
+    }
+    else
+    {
+        D3D12MA_HEAVY_ASSERT(m_pBack == pItem);
+        m_pBack = pItem->pPrev;
+    }
+
+    m_ItemAllocator.Free(pItem);
+    --m_Count;
+}
+
+template<typename T>
+typename List<T>::Item* List<T>::InsertBefore(Item* pItem)
+{
+    if(pItem != NULL)
+    {
+        Item* const prevItem = pItem->pPrev;
+        Item* const newItem = m_ItemAllocator.Alloc();
+        newItem->pPrev = prevItem;
+        newItem->pNext = pItem;
+        pItem->pPrev = newItem;
+        if(prevItem != NULL)
+        {
+            prevItem->pNext = newItem;
+        }
+        else
+        {
+            D3D12MA_HEAVY_ASSERT(m_pFront == pItem);
+            m_pFront = newItem;
+        }
+        ++m_Count;
+        return newItem;
+    }
+    else
+    {
+        return PushBack();
+    }
+}
+
+template<typename T>
+typename List<T>::Item* List<T>::InsertAfter(Item* pItem)
+{
+    if(pItem != NULL)
+    {
+        Item* const nextItem = pItem->pNext;
+        Item* const newItem = m_ItemAllocator.Alloc();
+        newItem->pNext = nextItem;
+        newItem->pPrev = pItem;
+        pItem->pNext = newItem;
+        if(nextItem != NULL)
+        {
+            nextItem->pPrev = newItem;
+        }
+        else
+        {
+            D3D12MA_HEAVY_ASSERT(m_pBack == pItem);
+            m_pBack = newItem;
+        }
+        ++m_Count;
+        return newItem;
+    }
+    else
+        return PushFront();
+}
+
+template<typename T>
+typename List<T>::Item* List<T>::InsertBefore(Item* pItem, const T& value)
+{
+    Item* const newItem = InsertBefore(pItem);
+    newItem->Value = value;
+    return newItem;
+}
+
+template<typename T>
+typename List<T>::Item* List<T>::InsertAfter(Item* pItem, const T& value)
+{
+    Item* const newItem = InsertAfter(pItem);
+    newItem->Value = value;
+    return newItem;
+}
+#endif // _D3D12MA_LIST_FUNCTIONS
+#endif // _D3D12MA_LIST
+
+#ifndef _D3D12MA_INTRUSIVE_LINKED_LIST
+/*
+Expected interface of ItemTypeTraits:
+struct MyItemTypeTraits
+{
+    using ItemType = MyItem;
+    static ItemType* GetPrev(const ItemType* item) { return item->myPrevPtr; }
+    static ItemType* GetNext(const ItemType* item) { return item->myNextPtr; }
+    static ItemType*& AccessPrev(ItemType* item) { return item->myPrevPtr; }
+    static ItemType*& AccessNext(ItemType* item) { return item->myNextPtr; }
+};
+*/
+template<typename ItemTypeTraits>
+class IntrusiveLinkedList
+{
+public:
+    using ItemType = typename ItemTypeTraits::ItemType;
+    static ItemType* GetPrev(const ItemType* item) { return ItemTypeTraits::GetPrev(item); }
+    static ItemType* GetNext(const ItemType* item) { return ItemTypeTraits::GetNext(item); }
+
+    // Movable, not copyable.
+    IntrusiveLinkedList() = default;
+    IntrusiveLinkedList(const IntrusiveLinkedList&) = delete;
+    IntrusiveLinkedList(IntrusiveLinkedList&& src);
+    IntrusiveLinkedList& operator=(const IntrusiveLinkedList&) = delete;
+    IntrusiveLinkedList& operator=(IntrusiveLinkedList&& src);
+    ~IntrusiveLinkedList() { D3D12MA_HEAVY_ASSERT(IsEmpty()); }
+
+    size_t GetCount() const { return m_Count; }
+    bool IsEmpty() const { return m_Count == 0; }
+
+    ItemType* Front() { return m_Front; }
+    ItemType* Back() { return m_Back; }
+    const ItemType* Front() const { return m_Front; }
+    const ItemType* Back() const { return m_Back; }
+
+    void PushBack(ItemType* item);
+    void PushFront(ItemType* item);
+    ItemType* PopBack();
+    ItemType* PopFront();
+
+    // MyItem can be null - it means PushBack.
+    void InsertBefore(ItemType* existingItem, ItemType* newItem);
+    // MyItem can be null - it means PushFront.
+    void InsertAfter(ItemType* existingItem, ItemType* newItem);
+
+    void Remove(ItemType* item);
+    void RemoveAll();
+
+private:
+    ItemType* m_Front = NULL;
+    ItemType* m_Back = NULL;
+    size_t m_Count = 0;
+};
+
+#ifndef _D3D12MA_INTRUSIVE_LINKED_LIST_FUNCTIONS
+template<typename ItemTypeTraits>
+IntrusiveLinkedList<ItemTypeTraits>::IntrusiveLinkedList(IntrusiveLinkedList&& src)
+    : m_Front(src.m_Front), m_Back(src.m_Back), m_Count(src.m_Count)
+{
+    src.m_Front = src.m_Back = NULL;
+    src.m_Count = 0;
+}
+
+template<typename ItemTypeTraits>
+IntrusiveLinkedList<ItemTypeTraits>& IntrusiveLinkedList<ItemTypeTraits>::operator=(IntrusiveLinkedList&& src)
+{
+    if (&src != this)
+    {
+        D3D12MA_HEAVY_ASSERT(IsEmpty());
+        m_Front = src.m_Front;
+        m_Back = src.m_Back;
+        m_Count = src.m_Count;
+        src.m_Front = src.m_Back = NULL;
+        src.m_Count = 0;
+    }
+    return *this;
+}
+
+template<typename ItemTypeTraits>
+void IntrusiveLinkedList<ItemTypeTraits>::PushBack(ItemType* item)
+{
+    D3D12MA_HEAVY_ASSERT(ItemTypeTraits::GetPrev(item) == NULL && ItemTypeTraits::GetNext(item) == NULL);
+    if (IsEmpty())
+    {
+        m_Front = item;
+        m_Back = item;
+        m_Count = 1;
+    }
+    else
+    {
+        ItemTypeTraits::AccessPrev(item) = m_Back;
+        ItemTypeTraits::AccessNext(m_Back) = item;
+        m_Back = item;
+        ++m_Count;
+    }
+}
+
+template<typename ItemTypeTraits>
+void IntrusiveLinkedList<ItemTypeTraits>::PushFront(ItemType* item)
+{
+    D3D12MA_HEAVY_ASSERT(ItemTypeTraits::GetPrev(item) == NULL && ItemTypeTraits::GetNext(item) == NULL);
+    if (IsEmpty())
+    {
+        m_Front = item;
+        m_Back = item;
+        m_Count = 1;
+    }
+    else
+    {
+        ItemTypeTraits::AccessNext(item) = m_Front;
+        ItemTypeTraits::AccessPrev(m_Front) = item;
+        m_Front = item;
+        ++m_Count;
+    }
+}
+
+template<typename ItemTypeTraits>
+typename IntrusiveLinkedList<ItemTypeTraits>::ItemType* IntrusiveLinkedList<ItemTypeTraits>::PopBack()
+{
+    D3D12MA_HEAVY_ASSERT(m_Count > 0);
+    ItemType* const backItem = m_Back;
+    ItemType* const prevItem = ItemTypeTraits::GetPrev(backItem);
+    if (prevItem != NULL)
+    {
+        ItemTypeTraits::AccessNext(prevItem) = NULL;
+    }
+    m_Back = prevItem;
+    --m_Count;
+    ItemTypeTraits::AccessPrev(backItem) = NULL;
+    ItemTypeTraits::AccessNext(backItem) = NULL;
+    return backItem;
+}
+
+template<typename ItemTypeTraits>
+typename IntrusiveLinkedList<ItemTypeTraits>::ItemType* IntrusiveLinkedList<ItemTypeTraits>::PopFront()
+{
+    D3D12MA_HEAVY_ASSERT(m_Count > 0);
+    ItemType* const frontItem = m_Front;
+    ItemType* const nextItem = ItemTypeTraits::GetNext(frontItem);
+    if (nextItem != NULL)
+    {
+        ItemTypeTraits::AccessPrev(nextItem) = NULL;
+    }
+    m_Front = nextItem;
+    --m_Count;
+    ItemTypeTraits::AccessPrev(frontItem) = NULL;
+    ItemTypeTraits::AccessNext(frontItem) = NULL;
+    return frontItem;
+}
+
+template<typename ItemTypeTraits>
+void IntrusiveLinkedList<ItemTypeTraits>::InsertBefore(ItemType* existingItem, ItemType* newItem)
+{
+    D3D12MA_HEAVY_ASSERT(newItem != NULL && ItemTypeTraits::GetPrev(newItem) == NULL && ItemTypeTraits::GetNext(newItem) == NULL);
+    if (existingItem != NULL)
+    {
+        ItemType* const prevItem = ItemTypeTraits::GetPrev(existingItem);
+        ItemTypeTraits::AccessPrev(newItem) = prevItem;
+        ItemTypeTraits::AccessNext(newItem) = existingItem;
+        ItemTypeTraits::AccessPrev(existingItem) = newItem;
+        if (prevItem != NULL)
+        {
+            ItemTypeTraits::AccessNext(prevItem) = newItem;
+        }
+        else
+        {
+            D3D12MA_HEAVY_ASSERT(m_Front == existingItem);
+            m_Front = newItem;
+        }
+        ++m_Count;
+    }
+    else
+        PushBack(newItem);
+}
+
+template<typename ItemTypeTraits>
+void IntrusiveLinkedList<ItemTypeTraits>::InsertAfter(ItemType* existingItem, ItemType* newItem)
+{
+    D3D12MA_HEAVY_ASSERT(newItem != NULL && ItemTypeTraits::GetPrev(newItem) == NULL && ItemTypeTraits::GetNext(newItem) == NULL);
+    if (existingItem != NULL)
+    {
+        ItemType* const nextItem = ItemTypeTraits::GetNext(existingItem);
+        ItemTypeTraits::AccessNext(newItem) = nextItem;
+        ItemTypeTraits::AccessPrev(newItem) = existingItem;
+        ItemTypeTraits::AccessNext(existingItem) = newItem;
+        if (nextItem != NULL)
+        {
+            ItemTypeTraits::AccessPrev(nextItem) = newItem;
+        }
+        else
+        {
+            D3D12MA_HEAVY_ASSERT(m_Back == existingItem);
+            m_Back = newItem;
+        }
+        ++m_Count;
+    }
+    else
+        return PushFront(newItem);
+}
+
+template<typename ItemTypeTraits>
+void IntrusiveLinkedList<ItemTypeTraits>::Remove(ItemType* item)
+{
+    D3D12MA_HEAVY_ASSERT(item != NULL && m_Count > 0);
+    if (ItemTypeTraits::GetPrev(item) != NULL)
+    {
+        ItemTypeTraits::AccessNext(ItemTypeTraits::AccessPrev(item)) = ItemTypeTraits::GetNext(item);
+    }
+    else
+    {
+        D3D12MA_HEAVY_ASSERT(m_Front == item);
+        m_Front = ItemTypeTraits::GetNext(item);
+    }
+
+    if (ItemTypeTraits::GetNext(item) != NULL)
+    {
+        ItemTypeTraits::AccessPrev(ItemTypeTraits::AccessNext(item)) = ItemTypeTraits::GetPrev(item);
+    }
+    else
+    {
+        D3D12MA_HEAVY_ASSERT(m_Back == item);
+        m_Back = ItemTypeTraits::GetPrev(item);
+    }
+    ItemTypeTraits::AccessPrev(item) = NULL;
+    ItemTypeTraits::AccessNext(item) = NULL;
+    --m_Count;
+}
+
+template<typename ItemTypeTraits>
+void IntrusiveLinkedList<ItemTypeTraits>::RemoveAll()
+{
+    if (!IsEmpty())
+    {
+        ItemType* item = m_Back;
+        while (item != NULL)
+        {
+            ItemType* const prevItem = ItemTypeTraits::AccessPrev(item);
+            ItemTypeTraits::AccessPrev(item) = NULL;
+            ItemTypeTraits::AccessNext(item) = NULL;
+            item = prevItem;
+        }
+        m_Front = NULL;
+        m_Back = NULL;
+        m_Count = 0;
+    }
+}
+#endif // _D3D12MA_INTRUSIVE_LINKED_LIST_FUNCTIONS
+#endif // _D3D12MA_INTRUSIVE_LINKED_LIST
+
+#ifndef _D3D12MA_ALLOCATION_OBJECT_ALLOCATOR
+/*
+Thread-safe wrapper over PoolAllocator free list, for allocation of Allocation objects.
+*/
+class AllocationObjectAllocator
+{
+    D3D12MA_CLASS_NO_COPY(AllocationObjectAllocator);
+public:
+    AllocationObjectAllocator(const ALLOCATION_CALLBACKS& allocationCallbacks)
+        : m_Allocator(allocationCallbacks, 1024) {}
+
+    template<typename... Types>
+    Allocation* Allocate(Types... args);
+    void Free(Allocation* alloc);
+
+private:
+    D3D12MA_MUTEX m_Mutex;
+    PoolAllocator<Allocation> m_Allocator;
+};
+
+#ifndef _D3D12MA_ALLOCATION_OBJECT_ALLOCATOR_FUNCTIONS
+template<typename... Types>
+Allocation* AllocationObjectAllocator::Allocate(Types... args)
+{
+    MutexLock mutexLock(m_Mutex);
+    return m_Allocator.Alloc(std::forward<Types>(args)...);
+}
+
+void AllocationObjectAllocator::Free(Allocation* alloc)
+{
+    MutexLock mutexLock(m_Mutex);
+    m_Allocator.Free(alloc);
+}
+#endif // _D3D12MA_ALLOCATION_OBJECT_ALLOCATOR_FUNCTIONS
+#endif // _D3D12MA_ALLOCATION_OBJECT_ALLOCATOR
+
+#ifndef _D3D12MA_SUBALLOCATION
+/*
+Represents a region of NormalBlock that is either assigned and returned as
+allocated memory block or free.
+*/
+struct Suballocation
+{
+    UINT64 offset;
+    UINT64 size;
+    void* privateData;
+    SuballocationType type;
+};
+using SuballocationList = List<Suballocation>;
+
+// Comparator for offsets.
+struct SuballocationOffsetLess
+{
+    bool operator()(const Suballocation& lhs, const Suballocation& rhs) const
+    {
+        return lhs.offset < rhs.offset;
+    }
+};
+
+struct SuballocationOffsetGreater
+{
+    bool operator()(const Suballocation& lhs, const Suballocation& rhs) const
+    {
+        return lhs.offset > rhs.offset;
+    }
+};
+
+struct SuballocationItemSizeLess
+{
+    bool operator()(const SuballocationList::iterator lhs, const SuballocationList::iterator rhs) const
+    {
+        return lhs->size < rhs->size;
+    }
+    bool operator()(const SuballocationList::iterator lhs, UINT64 rhsSize) const
+    {
+        return lhs->size < rhsSize;
+    }
+};
+#endif // _D3D12MA_SUBALLOCATION
+
+#ifndef _D3D12MA_ALLOCATION_REQUEST
+/*
+Parameters of planned allocation inside a NormalBlock.
+*/
+struct AllocationRequest
+{
+    AllocHandle allocHandle;
+    UINT64 size;
+    UINT64 algorithmData;
+    UINT64 sumFreeSize; // Sum size of free items that overlap with proposed allocation.
+    UINT64 sumItemSize; // Sum size of items to make lost that overlap with proposed allocation.
+    SuballocationList::iterator item;
+    BOOL zeroInitialized = FALSE; // TODO Implement proper handling in TLSF and Linear, using ZeroInitializedRange class.
+};
+#endif // _D3D12MA_ALLOCATION_REQUEST
+
+#ifndef _D3D12MA_ZERO_INITIALIZED_RANGE
+/*
+Keeps track of the range of bytes that are surely initialized with zeros.
+Everything outside of it is considered uninitialized memory that may contain
+garbage data.
+
+The range is left-inclusive.
+*/
+class ZeroInitializedRange
+{
+public:
+    void Reset(UINT64 size);
+    BOOL IsRangeZeroInitialized(UINT64 beg, UINT64 end) const;
+    void MarkRangeAsUsed(UINT64 usedBeg, UINT64 usedEnd);
+
+private:
+    UINT64 m_ZeroBeg = 0, m_ZeroEnd = 0;
+};
+
+#ifndef _D3D12MA_ZERO_INITIALIZED_RANGE_FUNCTIONS
+void ZeroInitializedRange::Reset(UINT64 size)
+{
+    D3D12MA_ASSERT(size > 0);
+    m_ZeroBeg = 0;
+    m_ZeroEnd = size;
+}
+
+BOOL ZeroInitializedRange::IsRangeZeroInitialized(UINT64 beg, UINT64 end) const
+{
+    D3D12MA_ASSERT(beg < end);
+    return m_ZeroBeg <= beg && end <= m_ZeroEnd;
+}
+
+void ZeroInitializedRange::MarkRangeAsUsed(UINT64 usedBeg, UINT64 usedEnd)
+{
+    D3D12MA_ASSERT(usedBeg < usedEnd);
+    // No new bytes marked.
+    if (usedEnd <= m_ZeroBeg || m_ZeroEnd <= usedBeg)
+    {
+        return;
+    }
+    // All bytes marked.
+    if (usedBeg <= m_ZeroBeg && m_ZeroEnd <= usedEnd)
+    {
+        m_ZeroBeg = m_ZeroEnd = 0;
+    }
+    // Some bytes marked.
+    else
+    {
+        const UINT64 remainingZeroBefore = usedBeg > m_ZeroBeg ? usedBeg - m_ZeroBeg : 0;
+        const UINT64 remainingZeroAfter = usedEnd < m_ZeroEnd ? m_ZeroEnd - usedEnd : 0;
+        D3D12MA_ASSERT(remainingZeroBefore > 0 || remainingZeroAfter > 0);
+        if (remainingZeroBefore > remainingZeroAfter)
+        {
+            m_ZeroEnd = usedBeg;
+        }
+        else
+        {
+            m_ZeroBeg = usedEnd;
+        }
+    }
+}
+#endif // _D3D12MA_ZERO_INITIALIZED_RANGE_FUNCTIONS
+#endif // _D3D12MA_ZERO_INITIALIZED_RANGE
+
+#ifndef _D3D12MA_BLOCK_METADATA
+/*
+Data structure used for bookkeeping of allocations and unused ranges of memory
+in a single ID3D12Heap memory block.
+*/
+class BlockMetadata
+{
+public:
+    BlockMetadata(const ALLOCATION_CALLBACKS* allocationCallbacks, bool isVirtual);
+    virtual ~BlockMetadata() = default;
+
+    virtual void Init(UINT64 size) { m_Size = size; }
+    // Validates all data structures inside this object. If not valid, returns false.
+    virtual bool Validate() const = 0;
+    UINT64 GetSize() const { return m_Size; }
+    bool IsVirtual() const { return m_IsVirtual; }
+    virtual size_t GetAllocationCount() const = 0;
+    virtual size_t GetFreeRegionsCount() const = 0;
+    virtual UINT64 GetSumFreeSize() const = 0;
+    virtual UINT64 GetAllocationOffset(AllocHandle allocHandle) const = 0;
+    // Returns true if this block is empty - contains only single free suballocation.
+    virtual bool IsEmpty() const = 0;
+
+    virtual void GetAllocationInfo(AllocHandle allocHandle, VIRTUAL_ALLOCATION_INFO& outInfo) const = 0;
+
+    // Tries to find a place for suballocation with given parameters inside this block.
+    // If succeeded, fills pAllocationRequest and returns true.
+    // If failed, returns false.
+    virtual bool CreateAllocationRequest(
+        UINT64 allocSize,
+        UINT64 allocAlignment,
+        bool upperAddress,
+        UINT32 strategy,
+        AllocationRequest* pAllocationRequest) = 0;
+
+    // Makes actual allocation based on request. Request must already be checked and valid.
+    virtual void Alloc(
+        const AllocationRequest& request,
+        UINT64 allocSize,
+        void* PrivateData) = 0;
+
+    virtual void Free(AllocHandle allocHandle) = 0;
+    // Frees all allocations.
+    // Careful! Don't call it if there are Allocation objects owned by pPrivateData of of cleared allocations!
+    virtual void Clear() = 0;
+
+    virtual AllocHandle GetAllocationListBegin() const = 0;
+    virtual AllocHandle GetNextAllocation(AllocHandle prevAlloc) const = 0;
+    virtual UINT64 GetNextFreeRegionSize(AllocHandle alloc) const = 0;
+    virtual void* GetAllocationPrivateData(AllocHandle allocHandle) const = 0;
+    virtual void SetAllocationPrivateData(AllocHandle allocHandle, void* privateData) = 0;
+
+    virtual void AddStatistics(Statistics& inoutStats) const = 0;
+    virtual void AddDetailedStatistics(DetailedStatistics& inoutStats) const = 0;
+    virtual void WriteAllocationInfoToJson(JsonWriter& json) const = 0;
+    virtual void DebugLogAllAllocations() const = 0;
+
+protected:
+    const ALLOCATION_CALLBACKS* GetAllocs() const { return m_pAllocationCallbacks; }
+    UINT64 GetDebugMargin() const { return IsVirtual() ? 0 : D3D12MA_DEBUG_MARGIN; }
+
+    void DebugLogAllocation(UINT64 offset, UINT64 size, void* privateData) const;
+    void PrintDetailedMap_Begin(JsonWriter& json,
+        UINT64 unusedBytes,
+        size_t allocationCount,
+        size_t unusedRangeCount) const;
+    void PrintDetailedMap_Allocation(JsonWriter& json,
+        UINT64 offset, UINT64 size, void* privateData) const;
+    void PrintDetailedMap_UnusedRange(JsonWriter& json,
+        UINT64 offset, UINT64 size) const;
+    void PrintDetailedMap_End(JsonWriter& json) const;
+
+private:
+    UINT64 m_Size;
+    bool m_IsVirtual;
+    const ALLOCATION_CALLBACKS* m_pAllocationCallbacks;
+
+    D3D12MA_CLASS_NO_COPY(BlockMetadata);
+};
+
+#ifndef _D3D12MA_BLOCK_METADATA_FUNCTIONS
+BlockMetadata::BlockMetadata(const ALLOCATION_CALLBACKS* allocationCallbacks, bool isVirtual)
+    : m_Size(0),
+    m_IsVirtual(isVirtual),
+    m_pAllocationCallbacks(allocationCallbacks)
+{
+    D3D12MA_ASSERT(allocationCallbacks);
+}
+
+void BlockMetadata::DebugLogAllocation(UINT64 offset, UINT64 size, void* privateData) const
+{
+    if (IsVirtual())
+    {
+        D3D12MA_DEBUG_LOG(L"UNFREED VIRTUAL ALLOCATION; Offset: %llu; Size: %llu; PrivateData: %p", offset, size, privateData);
+    }
+    else
+    {
+        D3D12MA_ASSERT(privateData != NULL);
+        Allocation* allocation = reinterpret_cast<Allocation*>(privateData);
+
+        privateData = allocation->GetPrivateData();
+        LPCWSTR name = allocation->GetName();
+
+        D3D12MA_DEBUG_LOG(L"UNFREED ALLOCATION; Offset: %llu; Size: %llu; PrivateData: %p; Name: %s",
+            offset, size, privateData, name ? name : L"D3D12MA_Empty");
+    }
+}
+
+void BlockMetadata::PrintDetailedMap_Begin(JsonWriter& json,
+    UINT64 unusedBytes, size_t allocationCount, size_t unusedRangeCount) const
+{
+    json.WriteString(L"TotalBytes");
+    json.WriteNumber(GetSize());
+
+    json.WriteString(L"UnusedBytes");
+    json.WriteNumber(unusedBytes);
+
+    json.WriteString(L"Allocations");
+    json.WriteNumber((UINT64)allocationCount);
+
+    json.WriteString(L"UnusedRanges");
+    json.WriteNumber((UINT64)unusedRangeCount);
+
+    json.WriteString(L"Suballocations");
+    json.BeginArray();
+}
+
+void BlockMetadata::PrintDetailedMap_Allocation(JsonWriter& json,
+    UINT64 offset, UINT64 size, void* privateData) const
+{
+    json.BeginObject(true);
+
+    json.WriteString(L"Offset");
+    json.WriteNumber(offset);
+
+    if (IsVirtual())
+    {
+        json.WriteString(L"Size");
+        json.WriteNumber(size);
+        if (privateData)
+        {
+            json.WriteString(L"CustomData");
+            json.WriteNumber((uintptr_t)privateData);
+        }
+    }
+    else
+    {
+        const Allocation* const alloc = (const Allocation*)privateData;
+        D3D12MA_ASSERT(alloc);
+        json.AddAllocationToObject(*alloc);
+    }
+    json.EndObject();
+}
+
+void BlockMetadata::PrintDetailedMap_UnusedRange(JsonWriter& json,
+    UINT64 offset, UINT64 size) const
+{
+    json.BeginObject(true);
+
+    json.WriteString(L"Offset");
+    json.WriteNumber(offset);
+
+    json.WriteString(L"Type");
+    json.WriteString(L"FREE");
+
+    json.WriteString(L"Size");
+    json.WriteNumber(size);
+
+    json.EndObject();
+}
+
+void BlockMetadata::PrintDetailedMap_End(JsonWriter& json) const
+{
+    json.EndArray();
+}
+#endif // _D3D12MA_BLOCK_METADATA_FUNCTIONS
+#endif // _D3D12MA_BLOCK_METADATA
+
+#if 0
+#ifndef _D3D12MA_BLOCK_METADATA_GENERIC
+class BlockMetadata_Generic : public BlockMetadata
+{
+public:
+    BlockMetadata_Generic(const ALLOCATION_CALLBACKS* allocationCallbacks, bool isVirtual);
+    virtual ~BlockMetadata_Generic() = default;
+
+    size_t GetAllocationCount() const override { return m_Suballocations.size() - m_FreeCount; }
+    UINT64 GetSumFreeSize() const override { return m_SumFreeSize; }
+    UINT64 GetAllocationOffset(AllocHandle allocHandle) const override { return (UINT64)allocHandle - 1; }
+
+    void Init(UINT64 size) override;
+    bool Validate() const override;
+    bool IsEmpty() const override;
+    void GetAllocationInfo(AllocHandle allocHandle, VIRTUAL_ALLOCATION_INFO& outInfo) const override;
+
+    bool CreateAllocationRequest(
+        UINT64 allocSize,
+        UINT64 allocAlignment,
+        bool upperAddress,
+        AllocationRequest* pAllocationRequest) override;
+
+    void Alloc(
+        const AllocationRequest& request,
+        UINT64 allocSize,
+        void* privateData) override;
+
+    void Free(AllocHandle allocHandle) override;
+    void Clear() override;
+
+    void SetAllocationPrivateData(AllocHandle allocHandle, void* privateData) override;
+
+    void AddStatistics(Statistics& inoutStats) const override;
+    void AddDetailedStatistics(DetailedStatistics& inoutStats) const override;
+    void WriteAllocationInfoToJson(JsonWriter& json) const override;
+
+private:
+    UINT m_FreeCount;
+    UINT64 m_SumFreeSize;
+    SuballocationList m_Suballocations;
+    // Suballocations that are free and have size greater than certain threshold.
+    // Sorted by size, ascending.
+    Vector<SuballocationList::iterator> m_FreeSuballocationsBySize;
+    ZeroInitializedRange m_ZeroInitializedRange;
+
+    SuballocationList::const_iterator FindAtOffset(UINT64 offset) const;
+    bool ValidateFreeSuballocationList() const;
+
+    // Checks if requested suballocation with given parameters can be placed in given pFreeSuballocItem.
+    // If yes, fills pOffset and returns true. If no, returns false.
+    bool CheckAllocation(
+        UINT64 allocSize,
+        UINT64 allocAlignment,
+        SuballocationList::const_iterator suballocItem,
+        AllocHandle* pAllocHandle,
+        UINT64* pSumFreeSize,
+        UINT64* pSumItemSize,
+        BOOL *pZeroInitialized) const;
+    // Given free suballocation, it merges it with following one, which must also be free.
+    void MergeFreeWithNext(SuballocationList::iterator item);
+    // Releases given suballocation, making it free.
+    // Merges it with adjacent free suballocations if applicable.
+    // Returns iterator to new free suballocation at this place.
+    SuballocationList::iterator FreeSuballocation(SuballocationList::iterator suballocItem);
+    // Given free suballocation, it inserts it into sorted list of
+    // m_FreeSuballocationsBySize if it's suitable.
+    void RegisterFreeSuballocation(SuballocationList::iterator item);
+    // Given free suballocation, it removes it from sorted list of
+    // m_FreeSuballocationsBySize if it's suitable.
+    void UnregisterFreeSuballocation(SuballocationList::iterator item);
+
+    D3D12MA_CLASS_NO_COPY(BlockMetadata_Generic)
+};
+
+#ifndef _D3D12MA_BLOCK_METADATA_GENERIC_FUNCTIONS
+BlockMetadata_Generic::BlockMetadata_Generic(const ALLOCATION_CALLBACKS* allocationCallbacks, bool isVirtual)
+    : BlockMetadata(allocationCallbacks, isVirtual),
+    m_FreeCount(0),
+    m_SumFreeSize(0),
+    m_Suballocations(*allocationCallbacks),
+    m_FreeSuballocationsBySize(*allocationCallbacks)
+{
+    D3D12MA_ASSERT(allocationCallbacks);
+}
+
+void BlockMetadata_Generic::Init(UINT64 size)
+{
+    BlockMetadata::Init(size);
+    m_ZeroInitializedRange.Reset(size);
+
+    m_FreeCount = 1;
+    m_SumFreeSize = size;
+
+    Suballocation suballoc = {};
+    suballoc.offset = 0;
+    suballoc.size = size;
+    suballoc.type = SUBALLOCATION_TYPE_FREE;
+    suballoc.privateData = NULL;
+
+    D3D12MA_ASSERT(size > MIN_FREE_SUBALLOCATION_SIZE_TO_REGISTER);
+    m_Suballocations.push_back(suballoc);
+    SuballocationList::iterator suballocItem = m_Suballocations.end();
+    --suballocItem;
+    m_FreeSuballocationsBySize.push_back(suballocItem);
+}
+
+bool BlockMetadata_Generic::Validate() const
+{
+    D3D12MA_VALIDATE(!m_Suballocations.empty());
+
+    // Expected offset of new suballocation as calculated from previous ones.
+    UINT64 calculatedOffset = 0;
+    // Expected number of free suballocations as calculated from traversing their list.
+    UINT calculatedFreeCount = 0;
+    // Expected sum size of free suballocations as calculated from traversing their list.
+    UINT64 calculatedSumFreeSize = 0;
+    // Expected number of free suballocations that should be registered in
+    // m_FreeSuballocationsBySize calculated from traversing their list.
+    size_t freeSuballocationsToRegister = 0;
+    // True if previous visited suballocation was free.
+    bool prevFree = false;
+
+    for (const auto& subAlloc : m_Suballocations)
+    {
+        // Actual offset of this suballocation doesn't match expected one.
+        D3D12MA_VALIDATE(subAlloc.offset == calculatedOffset);
+
+        const bool currFree = (subAlloc.type == SUBALLOCATION_TYPE_FREE);
+        // Two adjacent free suballocations are invalid. They should be merged.
+        D3D12MA_VALIDATE(!prevFree || !currFree);
+
+        const Allocation* const alloc = (Allocation*)subAlloc.privateData;
+        if (!IsVirtual())
+        {
+            D3D12MA_VALIDATE(currFree == (alloc == NULL));
+        }
+
+        if (currFree)
+        {
+            calculatedSumFreeSize += subAlloc.size;
+            ++calculatedFreeCount;
+            if (subAlloc.size >= MIN_FREE_SUBALLOCATION_SIZE_TO_REGISTER)
+            {
+                ++freeSuballocationsToRegister;
+            }
+
+            // Margin required between allocations - every free space must be at least that large.
+            D3D12MA_VALIDATE(subAlloc.size >= GetDebugMargin());
+        }
+        else
+        {
+            if (!IsVirtual())
+            {
+                D3D12MA_VALIDATE(alloc->GetOffset() == subAlloc.offset);
+                D3D12MA_VALIDATE(alloc->GetSize() == subAlloc.size);
+            }
+
+            // Margin required between allocations - previous allocation must be free.
+            D3D12MA_VALIDATE(GetDebugMargin() == 0 || prevFree);
+        }
+
+        calculatedOffset += subAlloc.size;
+        prevFree = currFree;
+    }
+
+    // Number of free suballocations registered in m_FreeSuballocationsBySize doesn't
+    // match expected one.
+    D3D12MA_VALIDATE(m_FreeSuballocationsBySize.size() == freeSuballocationsToRegister);
+
+    UINT64 lastSize = 0;
+    for (size_t i = 0; i < m_FreeSuballocationsBySize.size(); ++i)
+    {
+        SuballocationList::iterator suballocItem = m_FreeSuballocationsBySize[i];
+
+        // Only free suballocations can be registered in m_FreeSuballocationsBySize.
+        D3D12MA_VALIDATE(suballocItem->type == SUBALLOCATION_TYPE_FREE);
+        // They must be sorted by size ascending.
+        D3D12MA_VALIDATE(suballocItem->size >= lastSize);
+
+        lastSize = suballocItem->size;
+    }
+
+    // Check if totals match calculacted values.
+    D3D12MA_VALIDATE(ValidateFreeSuballocationList());
+    D3D12MA_VALIDATE(calculatedOffset == GetSize());
+    D3D12MA_VALIDATE(calculatedSumFreeSize == m_SumFreeSize);
+    D3D12MA_VALIDATE(calculatedFreeCount == m_FreeCount);
+
+    return true;
+}
+
+bool BlockMetadata_Generic::IsEmpty() const
+{
+    return (m_Suballocations.size() == 1) && (m_FreeCount == 1);
+}
+
+void BlockMetadata_Generic::GetAllocationInfo(AllocHandle allocHandle, VIRTUAL_ALLOCATION_INFO& outInfo) const
+{
+    Suballocation& suballoc = *FindAtOffset((UINT64)allocHandle - 1).dropConst();
+    outInfo.Offset = suballoc.offset;
+    outInfo.Size = suballoc.size;
+    outInfo.pPrivateData = suballoc.privateData;
+}
+
+bool BlockMetadata_Generic::CreateAllocationRequest(
+    UINT64 allocSize,
+    UINT64 allocAlignment,
+    bool upperAddress,
+    AllocationRequest* pAllocationRequest)
+{
+    D3D12MA_ASSERT(allocSize > 0);
+    D3D12MA_ASSERT(!upperAddress && "ALLOCATION_FLAG_UPPER_ADDRESS can be used only with linear algorithm.");
+    D3D12MA_ASSERT(pAllocationRequest != NULL);
+    D3D12MA_HEAVY_ASSERT(Validate());
+
+    // There is not enough total free space in this block to fullfill the request: Early return.
+    if (m_SumFreeSize < allocSize + GetDebugMargin())
+    {
+        return false;
+    }
+
+    // New algorithm, efficiently searching freeSuballocationsBySize.
+    const size_t freeSuballocCount = m_FreeSuballocationsBySize.size();
+    if (freeSuballocCount > 0)
+    {
+        // Find first free suballocation with size not less than allocSize + GetDebugMargin().
+        SuballocationList::iterator* const it = BinaryFindFirstNotLess(
+            m_FreeSuballocationsBySize.data(),
+            m_FreeSuballocationsBySize.data() + freeSuballocCount,
+            allocSize + GetDebugMargin(),
+            SuballocationItemSizeLess());
+        size_t index = it - m_FreeSuballocationsBySize.data();
+        for (; index < freeSuballocCount; ++index)
+        {
+            if (CheckAllocation(
+                allocSize,
+                allocAlignment,
+                m_FreeSuballocationsBySize[index],
+                &pAllocationRequest->allocHandle,
+                &pAllocationRequest->sumFreeSize,
+                &pAllocationRequest->sumItemSize,
+                &pAllocationRequest->zeroInitialized))
+            {
+                pAllocationRequest->item = m_FreeSuballocationsBySize[index];
+                return true;
+            }
+        }
+    }
+
+    return false;
+}
+
+void BlockMetadata_Generic::Alloc(
+    const AllocationRequest& request,
+    UINT64 allocSize,
+    void* privateData)
+{
+    D3D12MA_ASSERT(request.item != m_Suballocations.end());
+    Suballocation& suballoc = *request.item;
+    // Given suballocation is a free block.
+    D3D12MA_ASSERT(suballoc.type == SUBALLOCATION_TYPE_FREE);
+    // Given offset is inside this suballocation.
+    UINT64 offset = (UINT64)request.allocHandle - 1;
+    D3D12MA_ASSERT(offset >= suballoc.offset);
+    const UINT64 paddingBegin = offset - suballoc.offset;
+    D3D12MA_ASSERT(suballoc.size >= paddingBegin + allocSize);
+    const UINT64 paddingEnd = suballoc.size - paddingBegin - allocSize;
+
+    // Unregister this free suballocation from m_FreeSuballocationsBySize and update
+    // it to become used.
+    UnregisterFreeSuballocation(request.item);
+
+    suballoc.offset = offset;
+    suballoc.size = allocSize;
+    suballoc.type = SUBALLOCATION_TYPE_ALLOCATION;
+    suballoc.privateData = privateData;
+
+    // If there are any free bytes remaining at the end, insert new free suballocation after current one.
+    if (paddingEnd)
+    {
+        Suballocation paddingSuballoc = {};
+        paddingSuballoc.offset = offset + allocSize;
+        paddingSuballoc.size = paddingEnd;
+        paddingSuballoc.type = SUBALLOCATION_TYPE_FREE;
+        SuballocationList::iterator next = request.item;
+        ++next;
+        const SuballocationList::iterator paddingEndItem =
+            m_Suballocations.insert(next, paddingSuballoc);
+        RegisterFreeSuballocation(paddingEndItem);
+    }
+
+    // If there are any free bytes remaining at the beginning, insert new free suballocation before current one.
+    if (paddingBegin)
+    {
+        Suballocation paddingSuballoc = {};
+        paddingSuballoc.offset = offset - paddingBegin;
+        paddingSuballoc.size = paddingBegin;
+        paddingSuballoc.type = SUBALLOCATION_TYPE_FREE;
+        const SuballocationList::iterator paddingBeginItem =
+            m_Suballocations.insert(request.item, paddingSuballoc);
+        RegisterFreeSuballocation(paddingBeginItem);
+    }
+
+    // Update totals.
+    m_FreeCount = m_FreeCount - 1;
+    if (paddingBegin > 0)
+    {
+        ++m_FreeCount;
+    }
+    if (paddingEnd > 0)
+    {
+        ++m_FreeCount;
+    }
+    m_SumFreeSize -= allocSize;
+
+    m_ZeroInitializedRange.MarkRangeAsUsed(offset, offset + allocSize);
+}
+
+void BlockMetadata_Generic::Free(AllocHandle allocHandle)
+{
+    FreeSuballocation(FindAtOffset((UINT64)allocHandle - 1).dropConst());
+}
+
+void BlockMetadata_Generic::Clear()
+{
+    m_FreeCount = 1;
+    m_SumFreeSize = GetSize();
+
+    m_Suballocations.clear();
+    Suballocation suballoc = {};
+    suballoc.offset = 0;
+    suballoc.size = GetSize();
+    suballoc.type = SUBALLOCATION_TYPE_FREE;
+    m_Suballocations.push_back(suballoc);
+
+    m_FreeSuballocationsBySize.clear();
+    m_FreeSuballocationsBySize.push_back(m_Suballocations.begin());
+}
+
+SuballocationList::const_iterator BlockMetadata_Generic::FindAtOffset(UINT64 offset) const
+{
+    const UINT64 last = m_Suballocations.crbegin()->offset;
+    if (last == offset)
+        return m_Suballocations.crbegin();
+    const UINT64 first = m_Suballocations.cbegin()->offset;
+    if (first == offset)
+        return m_Suballocations.cbegin();
+
+    const size_t suballocCount = m_Suballocations.size();
+    const UINT64 step = (last - first + m_Suballocations.cbegin()->size) / suballocCount;
+    auto findSuballocation = [&](auto begin, auto end) -> SuballocationList::const_iterator
+    {
+        for (auto suballocItem = begin;
+            suballocItem != end;
+            ++suballocItem)
+        {
+            const Suballocation& suballoc = *suballocItem;
+            if (suballoc.offset == offset)
+                return suballocItem;
+        }
+        D3D12MA_ASSERT(false && "Not found!");
+        return m_Suballocations.end();
+    };
+    // If requested offset is closer to the end of range, search from the end
+    if ((offset - first) > suballocCount * step / 2)
+    {
+        return findSuballocation(m_Suballocations.crbegin(), m_Suballocations.crend());
+    }
+    return findSuballocation(m_Suballocations.cbegin(), m_Suballocations.cend());
+}
+
+bool BlockMetadata_Generic::ValidateFreeSuballocationList() const
+{
+    UINT64 lastSize = 0;
+    for (size_t i = 0, count = m_FreeSuballocationsBySize.size(); i < count; ++i)
+    {
+        const SuballocationList::iterator it = m_FreeSuballocationsBySize[i];
+
+        D3D12MA_VALIDATE(it->type == SUBALLOCATION_TYPE_FREE);
+        D3D12MA_VALIDATE(it->size >= MIN_FREE_SUBALLOCATION_SIZE_TO_REGISTER);
+        D3D12MA_VALIDATE(it->size >= lastSize);
+        lastSize = it->size;
+    }
+    return true;
+}
+
+bool BlockMetadata_Generic::CheckAllocation(
+    UINT64 allocSize,
+    UINT64 allocAlignment,
+    SuballocationList::const_iterator suballocItem,
+    AllocHandle* pAllocHandle,
+    UINT64* pSumFreeSize,
+    UINT64* pSumItemSize,
+    BOOL* pZeroInitialized) const
+{
+    D3D12MA_ASSERT(allocSize > 0);
+    D3D12MA_ASSERT(suballocItem != m_Suballocations.cend());
+    D3D12MA_ASSERT(pAllocHandle != NULL && pZeroInitialized != NULL);
+
+    *pSumFreeSize = 0;
+    *pSumItemSize = 0;
+    *pZeroInitialized = FALSE;
+
+    const Suballocation& suballoc = *suballocItem;
+    D3D12MA_ASSERT(suballoc.type == SUBALLOCATION_TYPE_FREE);
+
+    *pSumFreeSize = suballoc.size;
+
+    // Size of this suballocation is too small for this request: Early return.
+    if (suballoc.size < allocSize)
+    {
+        return false;
+    }
+
+    // Start from offset equal to beginning of this suballocation and debug margin of previous allocation if present.
+    UINT64 offset = suballoc.offset + (suballocItem == m_Suballocations.cbegin() ? 0 : GetDebugMargin());
+
+    // Apply alignment.
+    offset = AlignUp(offset, allocAlignment);
+
+    // Calculate padding at the beginning based on current offset.
+    const UINT64 paddingBegin = offset - suballoc.offset;
+
+    // Fail if requested size plus margin after is bigger than size of this suballocation.
+    if (paddingBegin + allocSize + GetDebugMargin() > suballoc.size)
+    {
+        return false;
+    }
+
+    // All tests passed: Success. Offset is already filled.
+    *pZeroInitialized = m_ZeroInitializedRange.IsRangeZeroInitialized(offset, offset + allocSize);
+    *pAllocHandle = (AllocHandle)(offset + 1);
+    return true;
+}
+
+void BlockMetadata_Generic::MergeFreeWithNext(SuballocationList::iterator item)
+{
+    D3D12MA_ASSERT(item != m_Suballocations.end());
+    D3D12MA_ASSERT(item->type == SUBALLOCATION_TYPE_FREE);
+
+    SuballocationList::iterator nextItem = item;
+    ++nextItem;
+    D3D12MA_ASSERT(nextItem != m_Suballocations.end());
+    D3D12MA_ASSERT(nextItem->type == SUBALLOCATION_TYPE_FREE);
+
+    item->size += nextItem->size;
+    --m_FreeCount;
+    m_Suballocations.erase(nextItem);
+}
+
+SuballocationList::iterator BlockMetadata_Generic::FreeSuballocation(SuballocationList::iterator suballocItem)
+{
+    // Change this suballocation to be marked as free.
+    Suballocation& suballoc = *suballocItem;
+    suballoc.type = SUBALLOCATION_TYPE_FREE;
+    suballoc.privateData = NULL;
+
+    // Update totals.
+    ++m_FreeCount;
+    m_SumFreeSize += suballoc.size;
+
+    // Merge with previous and/or next suballocation if it's also free.
+    bool mergeWithNext = false;
+    bool mergeWithPrev = false;
+
+    SuballocationList::iterator nextItem = suballocItem;
+    ++nextItem;
+    if ((nextItem != m_Suballocations.end()) && (nextItem->type == SUBALLOCATION_TYPE_FREE))
+    {
+        mergeWithNext = true;
+    }
+
+    SuballocationList::iterator prevItem = suballocItem;
+    if (suballocItem != m_Suballocations.begin())
+    {
+        --prevItem;
+        if (prevItem->type == SUBALLOCATION_TYPE_FREE)
+        {
+            mergeWithPrev = true;
+        }
+    }
+
+    if (mergeWithNext)
+    {
+        UnregisterFreeSuballocation(nextItem);
+        MergeFreeWithNext(suballocItem);
+    }
+
+    if (mergeWithPrev)
+    {
+        UnregisterFreeSuballocation(prevItem);
+        MergeFreeWithNext(prevItem);
+        RegisterFreeSuballocation(prevItem);
+        return prevItem;
+    }
+    else
+    {
+        RegisterFreeSuballocation(suballocItem);
+        return suballocItem;
+    }
+}
+
+void BlockMetadata_Generic::RegisterFreeSuballocation(SuballocationList::iterator item)
+{
+    D3D12MA_ASSERT(item->type == SUBALLOCATION_TYPE_FREE);
+    D3D12MA_ASSERT(item->size > 0);
+
+    // You may want to enable this validation at the beginning or at the end of
+    // this function, depending on what do you want to check.
+    D3D12MA_HEAVY_ASSERT(ValidateFreeSuballocationList());
+
+    if (item->size >= MIN_FREE_SUBALLOCATION_SIZE_TO_REGISTER)
+    {
+        if (m_FreeSuballocationsBySize.empty())
+        {
+            m_FreeSuballocationsBySize.push_back(item);
+        }
+        else
+        {
+            m_FreeSuballocationsBySize.InsertSorted(item, SuballocationItemSizeLess());
+        }
+    }
+
+    //D3D12MA_HEAVY_ASSERT(ValidateFreeSuballocationList());
+}
+
+void BlockMetadata_Generic::UnregisterFreeSuballocation(SuballocationList::iterator item)
+{
+    D3D12MA_ASSERT(item->type == SUBALLOCATION_TYPE_FREE);
+    D3D12MA_ASSERT(item->size > 0);
+
+    // You may want to enable this validation at the beginning or at the end of
+    // this function, depending on what do you want to check.
+    D3D12MA_HEAVY_ASSERT(ValidateFreeSuballocationList());
+
+    if (item->size >= MIN_FREE_SUBALLOCATION_SIZE_TO_REGISTER)
+    {
+        SuballocationList::iterator* const it = BinaryFindFirstNotLess(
+            m_FreeSuballocationsBySize.data(),
+            m_FreeSuballocationsBySize.data() + m_FreeSuballocationsBySize.size(),
+            item,
+            SuballocationItemSizeLess());
+        for (size_t index = it - m_FreeSuballocationsBySize.data();
+            index < m_FreeSuballocationsBySize.size();
+            ++index)
+        {
+            if (m_FreeSuballocationsBySize[index] == item)
+            {
+                m_FreeSuballocationsBySize.remove(index);
+                return;
+            }
+            D3D12MA_ASSERT((m_FreeSuballocationsBySize[index]->size == item->size) && "Not found.");
+        }
+        D3D12MA_ASSERT(0 && "Not found.");
+    }
+
+    //D3D12MA_HEAVY_ASSERT(ValidateFreeSuballocationList());
+}
+
+void BlockMetadata_Generic::SetAllocationPrivateData(AllocHandle allocHandle, void* privateData)
+{
+    Suballocation& suballoc = *FindAtOffset((UINT64)allocHandle - 1).dropConst();
+    suballoc.privateData = privateData;
+}
+
+void BlockMetadata_Generic::AddStatistics(Statistics& inoutStats) const
+{
+    inoutStats.BlockCount++;
+    inoutStats.AllocationCount += (UINT)m_Suballocations.size() - m_FreeCount;
+    inoutStats.BlockBytes += GetSize();
+    inoutStats.AllocationBytes += GetSize() - m_SumFreeSize;
+}
+
+void BlockMetadata_Generic::AddDetailedStatistics(DetailedStatistics& inoutStats) const
+{
+    inoutStats.Stats.BlockCount++;
+    inoutStats.Stats.BlockBytes += GetSize();
+
+    for (const auto& suballoc : m_Suballocations)
+    {
+        if (suballoc.type == SUBALLOCATION_TYPE_FREE)
+            AddDetailedStatisticsUnusedRange(inoutStats, suballoc.size);
+        else
+            AddDetailedStatisticsAllocation(inoutStats, suballoc.size);
+    }
+}
+
+void BlockMetadata_Generic::WriteAllocationInfoToJson(JsonWriter& json) const
+{
+    PrintDetailedMap_Begin(json, GetSumFreeSize(), GetAllocationCount(), m_FreeCount);
+    for (const auto& suballoc : m_Suballocations)
+    {
+        if (suballoc.type == SUBALLOCATION_TYPE_FREE)
+            PrintDetailedMap_UnusedRange(json, suballoc.offset, suballoc.size);
+        else
+            PrintDetailedMap_Allocation(json, suballoc.offset, suballoc.size, suballoc.privateData);
+    }
+    PrintDetailedMap_End(json);
+}
+#endif // _D3D12MA_BLOCK_METADATA_GENERIC_FUNCTIONS
+#endif // _D3D12MA_BLOCK_METADATA_GENERIC
+#endif // #if 0
+
+#ifndef _D3D12MA_BLOCK_METADATA_LINEAR
+class BlockMetadata_Linear : public BlockMetadata
+{
+public:
+    BlockMetadata_Linear(const ALLOCATION_CALLBACKS* allocationCallbacks, bool isVirtual);
+    virtual ~BlockMetadata_Linear() = default;
+
+    UINT64 GetSumFreeSize() const override { return m_SumFreeSize; }
+    bool IsEmpty() const override { return GetAllocationCount() == 0; }
+    UINT64 GetAllocationOffset(AllocHandle allocHandle) const override { return (UINT64)allocHandle - 1; };
+
+    void Init(UINT64 size) override;
+    bool Validate() const override;
+    size_t GetAllocationCount() const override;
+    size_t GetFreeRegionsCount() const override;
+    void GetAllocationInfo(AllocHandle allocHandle, VIRTUAL_ALLOCATION_INFO& outInfo) const override;
+
+    bool CreateAllocationRequest(
+        UINT64 allocSize,
+        UINT64 allocAlignment,
+        bool upperAddress,
+        UINT32 strategy,
+        AllocationRequest* pAllocationRequest) override;
+
+    void Alloc(
+        const AllocationRequest& request,
+        UINT64 allocSize,
+        void* privateData) override;
+
+    void Free(AllocHandle allocHandle) override;
+    void Clear() override;
+
+    AllocHandle GetAllocationListBegin() const override;
+    AllocHandle GetNextAllocation(AllocHandle prevAlloc) const override;
+    UINT64 GetNextFreeRegionSize(AllocHandle alloc) const override;
+    void* GetAllocationPrivateData(AllocHandle allocHandle) const override;
+    void SetAllocationPrivateData(AllocHandle allocHandle, void* privateData) override;
+
+    void AddStatistics(Statistics& inoutStats) const override;
+    void AddDetailedStatistics(DetailedStatistics& inoutStats) const override;
+    void WriteAllocationInfoToJson(JsonWriter& json) const override;
+    void DebugLogAllAllocations() const override;
+
+private:
+    /*
+    There are two suballocation vectors, used in ping-pong way.
+    The one with index m_1stVectorIndex is called 1st.
+    The one with index (m_1stVectorIndex ^ 1) is called 2nd.
+    2nd can be non-empty only when 1st is not empty.
+    When 2nd is not empty, m_2ndVectorMode indicates its mode of operation.
+    */
+    typedef Vector<Suballocation> SuballocationVectorType;
+
+    enum ALLOC_REQUEST_TYPE
+    {
+        ALLOC_REQUEST_UPPER_ADDRESS,
+        ALLOC_REQUEST_END_OF_1ST,
+        ALLOC_REQUEST_END_OF_2ND,
+    };
+
+    enum SECOND_VECTOR_MODE
+    {
+        SECOND_VECTOR_EMPTY,
+        /*
+        Suballocations in 2nd vector are created later than the ones in 1st, but they
+        all have smaller offset.
+        */
+        SECOND_VECTOR_RING_BUFFER,
+        /*
+        Suballocations in 2nd vector are upper side of double stack.
+        They all have offsets higher than those in 1st vector.
+        Top of this stack means smaller offsets, but higher indices in this vector.
+        */
+        SECOND_VECTOR_DOUBLE_STACK,
+    };
+
+    UINT64 m_SumFreeSize;
+    SuballocationVectorType m_Suballocations0, m_Suballocations1;
+    UINT32 m_1stVectorIndex;
+    SECOND_VECTOR_MODE m_2ndVectorMode;
+    // Number of items in 1st vector with hAllocation = null at the beginning.
+    size_t m_1stNullItemsBeginCount;
+    // Number of other items in 1st vector with hAllocation = null somewhere in the middle.
+    size_t m_1stNullItemsMiddleCount;
+    // Number of items in 2nd vector with hAllocation = null.
+    size_t m_2ndNullItemsCount;
+
+    SuballocationVectorType& AccessSuballocations1st() { return m_1stVectorIndex ? m_Suballocations1 : m_Suballocations0; }
+    SuballocationVectorType& AccessSuballocations2nd() { return m_1stVectorIndex ? m_Suballocations0 : m_Suballocations1; }
+    const SuballocationVectorType& AccessSuballocations1st() const { return m_1stVectorIndex ? m_Suballocations1 : m_Suballocations0; }
+    const SuballocationVectorType& AccessSuballocations2nd() const { return m_1stVectorIndex ? m_Suballocations0 : m_Suballocations1; }
+
+    Suballocation& FindSuballocation(UINT64 offset) const;
+    bool ShouldCompact1st() const;
+    void CleanupAfterFree();
+
+    bool CreateAllocationRequest_LowerAddress(
+        UINT64 allocSize,
+        UINT64 allocAlignment,
+        AllocationRequest* pAllocationRequest);
+    bool CreateAllocationRequest_UpperAddress(
+        UINT64 allocSize,
+        UINT64 allocAlignment,
+        AllocationRequest* pAllocationRequest);
+
+    D3D12MA_CLASS_NO_COPY(BlockMetadata_Linear)
+};
+
+#ifndef _D3D12MA_BLOCK_METADATA_LINEAR_FUNCTIONS
+BlockMetadata_Linear::BlockMetadata_Linear(const ALLOCATION_CALLBACKS* allocationCallbacks, bool isVirtual)
+    : BlockMetadata(allocationCallbacks, isVirtual),
+    m_SumFreeSize(0),
+    m_Suballocations0(*allocationCallbacks),
+    m_Suballocations1(*allocationCallbacks),
+    m_1stVectorIndex(0),
+    m_2ndVectorMode(SECOND_VECTOR_EMPTY),
+    m_1stNullItemsBeginCount(0),
+    m_1stNullItemsMiddleCount(0),
+    m_2ndNullItemsCount(0)
+{
+    D3D12MA_ASSERT(allocationCallbacks);
+}
+
+void BlockMetadata_Linear::Init(UINT64 size)
+{
+    BlockMetadata::Init(size);
+    m_SumFreeSize = size;
+}
+
+bool BlockMetadata_Linear::Validate() const
+{
+    D3D12MA_VALIDATE(GetSumFreeSize() <= GetSize());
+    const SuballocationVectorType& suballocations1st = AccessSuballocations1st();
+    const SuballocationVectorType& suballocations2nd = AccessSuballocations2nd();
+
+    D3D12MA_VALIDATE(suballocations2nd.empty() == (m_2ndVectorMode == SECOND_VECTOR_EMPTY));
+    D3D12MA_VALIDATE(!suballocations1st.empty() ||
+        suballocations2nd.empty() ||
+        m_2ndVectorMode != SECOND_VECTOR_RING_BUFFER);
+
+    if (!suballocations1st.empty())
+    {
+        // Null item at the beginning should be accounted into m_1stNullItemsBeginCount.
+        D3D12MA_VALIDATE(suballocations1st[m_1stNullItemsBeginCount].type != SUBALLOCATION_TYPE_FREE);
+        // Null item at the end should be just pop_back().
+        D3D12MA_VALIDATE(suballocations1st.back().type != SUBALLOCATION_TYPE_FREE);
+    }
+    if (!suballocations2nd.empty())
+    {
+        // Null item at the end should be just pop_back().
+        D3D12MA_VALIDATE(suballocations2nd.back().type != SUBALLOCATION_TYPE_FREE);
+    }
+
+    D3D12MA_VALIDATE(m_1stNullItemsBeginCount + m_1stNullItemsMiddleCount <= suballocations1st.size());
+    D3D12MA_VALIDATE(m_2ndNullItemsCount <= suballocations2nd.size());
+
+    UINT64 sumUsedSize = 0;
+    const size_t suballoc1stCount = suballocations1st.size();
+    UINT64 offset = 0;
+
+    if (m_2ndVectorMode == SECOND_VECTOR_RING_BUFFER)
+    {
+        const size_t suballoc2ndCount = suballocations2nd.size();
+        size_t nullItem2ndCount = 0;
+        for (size_t i = 0; i < suballoc2ndCount; ++i)
+        {
+            const Suballocation& suballoc = suballocations2nd[i];
+            const bool currFree = (suballoc.type == SUBALLOCATION_TYPE_FREE);
+
+            const Allocation* alloc = (Allocation*)suballoc.privateData;
+            if (!IsVirtual())
+            {
+                D3D12MA_VALIDATE(currFree == (alloc == NULL));
+            }
+            D3D12MA_VALIDATE(suballoc.offset >= offset);
+
+            if (!currFree)
+            {
+                if (!IsVirtual())
+                {
+                    D3D12MA_VALIDATE(GetAllocationOffset(alloc->GetAllocHandle()) == suballoc.offset);
+                    D3D12MA_VALIDATE(alloc->GetSize() == suballoc.size);
+                }
+                sumUsedSize += suballoc.size;
+            }
+            else
+            {
+                ++nullItem2ndCount;
+            }
+
+            offset = suballoc.offset + suballoc.size + GetDebugMargin();
+        }
+
+        D3D12MA_VALIDATE(nullItem2ndCount == m_2ndNullItemsCount);
+    }
+
+    for (size_t i = 0; i < m_1stNullItemsBeginCount; ++i)
+    {
+        const Suballocation& suballoc = suballocations1st[i];
+        D3D12MA_VALIDATE(suballoc.type == SUBALLOCATION_TYPE_FREE &&
+            suballoc.privateData == NULL);
+    }
+
+    size_t nullItem1stCount = m_1stNullItemsBeginCount;
+
+    for (size_t i = m_1stNullItemsBeginCount; i < suballoc1stCount; ++i)
+    {
+        const Suballocation& suballoc = suballocations1st[i];
+        const bool currFree = (suballoc.type == SUBALLOCATION_TYPE_FREE);
+
+        const Allocation* alloc = (Allocation*)suballoc.privateData;
+        if (!IsVirtual())
+        {
+            D3D12MA_VALIDATE(currFree == (alloc == NULL));
+        }
+        D3D12MA_VALIDATE(suballoc.offset >= offset);
+        D3D12MA_VALIDATE(i >= m_1stNullItemsBeginCount || currFree);
+
+        if (!currFree)
+        {
+            if (!IsVirtual())
+            {
+                D3D12MA_VALIDATE(GetAllocationOffset(alloc->GetAllocHandle()) == suballoc.offset);
+                D3D12MA_VALIDATE(alloc->GetSize() == suballoc.size);
+            }
+            sumUsedSize += suballoc.size;
+        }
+        else
+        {
+            ++nullItem1stCount;
+        }
+
+        offset = suballoc.offset + suballoc.size + GetDebugMargin();
+    }
+    D3D12MA_VALIDATE(nullItem1stCount == m_1stNullItemsBeginCount + m_1stNullItemsMiddleCount);
+
+    if (m_2ndVectorMode == SECOND_VECTOR_DOUBLE_STACK)
+    {
+        const size_t suballoc2ndCount = suballocations2nd.size();
+        size_t nullItem2ndCount = 0;
+        for (size_t i = suballoc2ndCount; i--; )
+        {
+            const Suballocation& suballoc = suballocations2nd[i];
+            const bool currFree = (suballoc.type == SUBALLOCATION_TYPE_FREE);
+
+            const Allocation* alloc = (Allocation*)suballoc.privateData;
+            if (!IsVirtual())
+            {
+                D3D12MA_VALIDATE(currFree == (alloc == NULL));
+            }
+            D3D12MA_VALIDATE(suballoc.offset >= offset);
+
+            if (!currFree)
+            {
+                if (!IsVirtual())
+                {
+                    D3D12MA_VALIDATE(GetAllocationOffset(alloc->GetAllocHandle()) == suballoc.offset);
+                    D3D12MA_VALIDATE(alloc->GetSize() == suballoc.size);
+                }
+                sumUsedSize += suballoc.size;
+            }
+            else
+            {
+                ++nullItem2ndCount;
+            }
+
+            offset = suballoc.offset + suballoc.size + GetDebugMargin();
+        }
+
+        D3D12MA_VALIDATE(nullItem2ndCount == m_2ndNullItemsCount);
+    }
+
+    D3D12MA_VALIDATE(offset <= GetSize());
+    D3D12MA_VALIDATE(m_SumFreeSize == GetSize() - sumUsedSize);
+
+    return true;
+}
+
+size_t BlockMetadata_Linear::GetAllocationCount() const
+{
+    return AccessSuballocations1st().size() - m_1stNullItemsBeginCount - m_1stNullItemsMiddleCount +
+        AccessSuballocations2nd().size() - m_2ndNullItemsCount;
+}
+
+size_t BlockMetadata_Linear::GetFreeRegionsCount() const
+{
+    // Function only used for defragmentation, which is disabled for this algorithm
+    D3D12MA_ASSERT(0);
+    return SIZE_MAX;
+}
+
+void BlockMetadata_Linear::GetAllocationInfo(AllocHandle allocHandle, VIRTUAL_ALLOCATION_INFO& outInfo) const
+{
+    const Suballocation& suballoc = FindSuballocation((UINT64)allocHandle - 1);
+    outInfo.Offset = suballoc.offset;
+    outInfo.Size = suballoc.size;
+    outInfo.pPrivateData = suballoc.privateData;
+}
+
+bool BlockMetadata_Linear::CreateAllocationRequest(
+    UINT64 allocSize,
+    UINT64 allocAlignment,
+    bool upperAddress,
+    UINT32 strategy,
+    AllocationRequest* pAllocationRequest)
+{
+    D3D12MA_ASSERT(allocSize > 0 && "Cannot allocate empty block!");
+    D3D12MA_ASSERT(pAllocationRequest != NULL);
+    D3D12MA_HEAVY_ASSERT(Validate());
+    pAllocationRequest->size = allocSize;
+    return upperAddress ?
+        CreateAllocationRequest_UpperAddress(
+            allocSize, allocAlignment, pAllocationRequest) :
+        CreateAllocationRequest_LowerAddress(
+            allocSize, allocAlignment, pAllocationRequest);
+}
+
+void BlockMetadata_Linear::Alloc(
+    const AllocationRequest& request,
+    UINT64 allocSize,
+    void* privateData)
+{
+    UINT64 offset = (UINT64)request.allocHandle - 1;
+    const Suballocation newSuballoc = { offset, request.size, privateData, SUBALLOCATION_TYPE_ALLOCATION };
+
+    switch (request.algorithmData)
+    {
+    case ALLOC_REQUEST_UPPER_ADDRESS:
+    {
+        D3D12MA_ASSERT(m_2ndVectorMode != SECOND_VECTOR_RING_BUFFER &&
+            "CRITICAL ERROR: Trying to use linear allocator as double stack while it was already used as ring buffer.");
+        SuballocationVectorType& suballocations2nd = AccessSuballocations2nd();
+        suballocations2nd.push_back(newSuballoc);
+        m_2ndVectorMode = SECOND_VECTOR_DOUBLE_STACK;
+        break;
+    }
+    case ALLOC_REQUEST_END_OF_1ST:
+    {
+        SuballocationVectorType& suballocations1st = AccessSuballocations1st();
+
+        D3D12MA_ASSERT(suballocations1st.empty() ||
+            offset >= suballocations1st.back().offset + suballocations1st.back().size);
+        // Check if it fits before the end of the block.
+        D3D12MA_ASSERT(offset + request.size <= GetSize());
+
+        suballocations1st.push_back(newSuballoc);
+        break;
+    }
+    case ALLOC_REQUEST_END_OF_2ND:
+    {
+        SuballocationVectorType& suballocations1st = AccessSuballocations1st();
+        // New allocation at the end of 2-part ring buffer, so before first allocation from 1st vector.
+        D3D12MA_ASSERT(!suballocations1st.empty() &&
+            offset + request.size <= suballocations1st[m_1stNullItemsBeginCount].offset);
+        SuballocationVectorType& suballocations2nd = AccessSuballocations2nd();
+
+        switch (m_2ndVectorMode)
+        {
+        case SECOND_VECTOR_EMPTY:
+            // First allocation from second part ring buffer.
+            D3D12MA_ASSERT(suballocations2nd.empty());
+            m_2ndVectorMode = SECOND_VECTOR_RING_BUFFER;
+            break;
+        case SECOND_VECTOR_RING_BUFFER:
+            // 2-part ring buffer is already started.
+            D3D12MA_ASSERT(!suballocations2nd.empty());
+            break;
+        case SECOND_VECTOR_DOUBLE_STACK:
+            D3D12MA_ASSERT(0 && "CRITICAL ERROR: Trying to use linear allocator as ring buffer while it was already used as double stack.");
+            break;
+        default:
+            D3D12MA_ASSERT(0);
+        }
+
+        suballocations2nd.push_back(newSuballoc);
+        break;
+    }
+    default:
+        D3D12MA_ASSERT(0 && "CRITICAL INTERNAL ERROR.");
+    }
+    m_SumFreeSize -= newSuballoc.size;
+}
+
+void BlockMetadata_Linear::Free(AllocHandle allocHandle)
+{
+    SuballocationVectorType& suballocations1st = AccessSuballocations1st();
+    SuballocationVectorType& suballocations2nd = AccessSuballocations2nd();
+    UINT64 offset = (UINT64)allocHandle - 1;
+
+    if (!suballocations1st.empty())
+    {
+        // First allocation: Mark it as next empty at the beginning.
+        Suballocation& firstSuballoc = suballocations1st[m_1stNullItemsBeginCount];
+        if (firstSuballoc.offset == offset)
+        {
+            firstSuballoc.type = SUBALLOCATION_TYPE_FREE;
+            firstSuballoc.privateData = NULL;
+            m_SumFreeSize += firstSuballoc.size;
+            ++m_1stNullItemsBeginCount;
+            CleanupAfterFree();
+            return;
+        }
+    }
+
+    // Last allocation in 2-part ring buffer or top of upper stack (same logic).
+    if (m_2ndVectorMode == SECOND_VECTOR_RING_BUFFER ||
+        m_2ndVectorMode == SECOND_VECTOR_DOUBLE_STACK)
+    {
+        Suballocation& lastSuballoc = suballocations2nd.back();
+        if (lastSuballoc.offset == offset)
+        {
+            m_SumFreeSize += lastSuballoc.size;
+            suballocations2nd.pop_back();
+            CleanupAfterFree();
+            return;
+        }
+    }
+    // Last allocation in 1st vector.
+    else if (m_2ndVectorMode == SECOND_VECTOR_EMPTY)
+    {
+        Suballocation& lastSuballoc = suballocations1st.back();
+        if (lastSuballoc.offset == offset)
+        {
+            m_SumFreeSize += lastSuballoc.size;
+            suballocations1st.pop_back();
+            CleanupAfterFree();
+            return;
+        }
+    }
+
+    Suballocation refSuballoc;
+    refSuballoc.offset = offset;
+    // Rest of members stays uninitialized intentionally for better performance.
+
+    // Item from the middle of 1st vector.
+    {
+        const SuballocationVectorType::iterator it = BinaryFindSorted(
+            suballocations1st.begin() + m_1stNullItemsBeginCount,
+            suballocations1st.end(),
+            refSuballoc,
+            SuballocationOffsetLess());
+        if (it != suballocations1st.end())
+        {
+            it->type = SUBALLOCATION_TYPE_FREE;
+            it->privateData = NULL;
+            ++m_1stNullItemsMiddleCount;
+            m_SumFreeSize += it->size;
+            CleanupAfterFree();
+            return;
+        }
+    }
+
+    if (m_2ndVectorMode != SECOND_VECTOR_EMPTY)
+    {
+        // Item from the middle of 2nd vector.
+        const SuballocationVectorType::iterator it = m_2ndVectorMode == SECOND_VECTOR_RING_BUFFER ?
+            BinaryFindSorted(suballocations2nd.begin(), suballocations2nd.end(), refSuballoc, SuballocationOffsetLess()) :
+            BinaryFindSorted(suballocations2nd.begin(), suballocations2nd.end(), refSuballoc, SuballocationOffsetGreater());
+        if (it != suballocations2nd.end())
+        {
+            it->type = SUBALLOCATION_TYPE_FREE;
+            it->privateData = NULL;
+            ++m_2ndNullItemsCount;
+            m_SumFreeSize += it->size;
+            CleanupAfterFree();
+            return;
+        }
+    }
+
+    D3D12MA_ASSERT(0 && "Allocation to free not found in linear allocator!");
+}
+
+void BlockMetadata_Linear::Clear()
+{
+    m_SumFreeSize = GetSize();
+    m_Suballocations0.clear();
+    m_Suballocations1.clear();
+    // Leaving m_1stVectorIndex unchanged - it doesn't matter.
+    m_2ndVectorMode = SECOND_VECTOR_EMPTY;
+    m_1stNullItemsBeginCount = 0;
+    m_1stNullItemsMiddleCount = 0;
+    m_2ndNullItemsCount = 0;
+}
+
+AllocHandle BlockMetadata_Linear::GetAllocationListBegin() const
+{
+    // Function only used for defragmentation, which is disabled for this algorithm
+    D3D12MA_ASSERT(0);
+    return (AllocHandle)0;
+}
+
+AllocHandle BlockMetadata_Linear::GetNextAllocation(AllocHandle prevAlloc) const
+{
+    // Function only used for defragmentation, which is disabled for this algorithm
+    D3D12MA_ASSERT(0);
+    return (AllocHandle)0;
+}
+
+UINT64 BlockMetadata_Linear::GetNextFreeRegionSize(AllocHandle alloc) const
+{
+    // Function only used for defragmentation, which is disabled for this algorithm
+    D3D12MA_ASSERT(0);
+    return 0;
+}
+
+void* BlockMetadata_Linear::GetAllocationPrivateData(AllocHandle allocHandle) const
+{
+    return FindSuballocation((UINT64)allocHandle - 1).privateData;
+}
+
+void BlockMetadata_Linear::SetAllocationPrivateData(AllocHandle allocHandle, void* privateData)
+{
+    Suballocation& suballoc = FindSuballocation((UINT64)allocHandle - 1);
+    suballoc.privateData = privateData;
+}
+
+void BlockMetadata_Linear::AddStatistics(Statistics& inoutStats) const
+{
+    inoutStats.BlockCount++;
+    inoutStats.AllocationCount += (UINT)GetAllocationCount();
+    inoutStats.BlockBytes += GetSize();
+    inoutStats.AllocationBytes += GetSize() - m_SumFreeSize;
+}
+
+void BlockMetadata_Linear::AddDetailedStatistics(DetailedStatistics& inoutStats) const
+{
+    inoutStats.Stats.BlockCount++;
+    inoutStats.Stats.BlockBytes += GetSize();
+
+    const UINT64 size = GetSize();
+    const SuballocationVectorType& suballocations1st = AccessSuballocations1st();
+    const SuballocationVectorType& suballocations2nd = AccessSuballocations2nd();
+    const size_t suballoc1stCount = suballocations1st.size();
+    const size_t suballoc2ndCount = suballocations2nd.size();
+
+    UINT64 lastOffset = 0;
+    if (m_2ndVectorMode == SECOND_VECTOR_RING_BUFFER)
+    {
+        const UINT64 freeSpace2ndTo1stEnd = suballocations1st[m_1stNullItemsBeginCount].offset;
+        size_t nextAlloc2ndIndex = 0;
+        while (lastOffset < freeSpace2ndTo1stEnd)
+        {
+            // Find next non-null allocation or move nextAllocIndex to the end.
+            while (nextAlloc2ndIndex < suballoc2ndCount &&
+                suballocations2nd[nextAlloc2ndIndex].privateData == NULL)
+            {
+                ++nextAlloc2ndIndex;
+            }
+
+            // Found non-null allocation.
+            if (nextAlloc2ndIndex < suballoc2ndCount)
+            {
+                const Suballocation& suballoc = suballocations2nd[nextAlloc2ndIndex];
+
+                // 1. Process free space before this allocation.
+                if (lastOffset < suballoc.offset)
+                {
+                    // There is free space from lastOffset to suballoc.offset.
+                    const UINT64 unusedRangeSize = suballoc.offset - lastOffset;
+                    AddDetailedStatisticsUnusedRange(inoutStats, unusedRangeSize);
+                }
+
+                // 2. Process this allocation.
+                // There is allocation with suballoc.offset, suballoc.size.
+                AddDetailedStatisticsAllocation(inoutStats, suballoc.size);
+
+                // 3. Prepare for next iteration.
+                lastOffset = suballoc.offset + suballoc.size;
+                ++nextAlloc2ndIndex;
+            }
+            // We are at the end.
+            else
+            {
+                // There is free space from lastOffset to freeSpace2ndTo1stEnd.
+                if (lastOffset < freeSpace2ndTo1stEnd)
+                {
+                    const UINT64 unusedRangeSize = freeSpace2ndTo1stEnd - lastOffset;
+                    AddDetailedStatisticsUnusedRange(inoutStats, unusedRangeSize);
+                }
+
+                // End of loop.
+                lastOffset = freeSpace2ndTo1stEnd;
+            }
+        }
+    }
+
+    size_t nextAlloc1stIndex = m_1stNullItemsBeginCount;
+    const UINT64 freeSpace1stTo2ndEnd =
+        m_2ndVectorMode == SECOND_VECTOR_DOUBLE_STACK ? suballocations2nd.back().offset : size;
+    while (lastOffset < freeSpace1stTo2ndEnd)
+    {
+        // Find next non-null allocation or move nextAllocIndex to the end.
+        while (nextAlloc1stIndex < suballoc1stCount &&
+            suballocations1st[nextAlloc1stIndex].privateData == NULL)
+        {
+            ++nextAlloc1stIndex;
+        }
+
+        // Found non-null allocation.
+        if (nextAlloc1stIndex < suballoc1stCount)
+        {
+            const Suballocation& suballoc = suballocations1st[nextAlloc1stIndex];
+
+            // 1. Process free space before this allocation.
+            if (lastOffset < suballoc.offset)
+            {
+                // There is free space from lastOffset to suballoc.offset.
+                const UINT64 unusedRangeSize = suballoc.offset - lastOffset;
+                AddDetailedStatisticsUnusedRange(inoutStats, unusedRangeSize);
+            }
+
+            // 2. Process this allocation.
+            // There is allocation with suballoc.offset, suballoc.size.
+            AddDetailedStatisticsAllocation(inoutStats, suballoc.size);
+
+            // 3. Prepare for next iteration.
+            lastOffset = suballoc.offset + suballoc.size;
+            ++nextAlloc1stIndex;
+        }
+        // We are at the end.
+        else
+        {
+            // There is free space from lastOffset to freeSpace1stTo2ndEnd.
+            if (lastOffset < freeSpace1stTo2ndEnd)
+            {
+                const UINT64 unusedRangeSize = freeSpace1stTo2ndEnd - lastOffset;
+                AddDetailedStatisticsUnusedRange(inoutStats, unusedRangeSize);
+            }
+
+            // End of loop.
+            lastOffset = freeSpace1stTo2ndEnd;
+        }
+    }
+
+    if (m_2ndVectorMode == SECOND_VECTOR_DOUBLE_STACK)
+    {
+        size_t nextAlloc2ndIndex = suballocations2nd.size() - 1;
+        while (lastOffset < size)
+        {
+            // Find next non-null allocation or move nextAllocIndex to the end.
+            while (nextAlloc2ndIndex != SIZE_MAX &&
+                suballocations2nd[nextAlloc2ndIndex].privateData == NULL)
+            {
+                --nextAlloc2ndIndex;
+            }
+
+            // Found non-null allocation.
+            if (nextAlloc2ndIndex != SIZE_MAX)
+            {
+                const Suballocation& suballoc = suballocations2nd[nextAlloc2ndIndex];
+
+                // 1. Process free space before this allocation.
+                if (lastOffset < suballoc.offset)
+                {
+                    // There is free space from lastOffset to suballoc.offset.
+                    const UINT64 unusedRangeSize = suballoc.offset - lastOffset;
+                    AddDetailedStatisticsUnusedRange(inoutStats, unusedRangeSize);
+                }
+
+                // 2. Process this allocation.
+                // There is allocation with suballoc.offset, suballoc.size.
+                AddDetailedStatisticsAllocation(inoutStats, suballoc.size);
+
+                // 3. Prepare for next iteration.
+                lastOffset = suballoc.offset + suballoc.size;
+                --nextAlloc2ndIndex;
+            }
+            // We are at the end.
+            else
+            {
+                // There is free space from lastOffset to size.
+                if (lastOffset < size)
+                {
+                    const UINT64 unusedRangeSize = size - lastOffset;
+                    AddDetailedStatisticsUnusedRange(inoutStats, unusedRangeSize);
+                }
+
+                // End of loop.
+                lastOffset = size;
+            }
+        }
+    }
+}
+
+void BlockMetadata_Linear::WriteAllocationInfoToJson(JsonWriter& json) const
+{
+    const UINT64 size = GetSize();
+    const SuballocationVectorType& suballocations1st = AccessSuballocations1st();
+    const SuballocationVectorType& suballocations2nd = AccessSuballocations2nd();
+    const size_t suballoc1stCount = suballocations1st.size();
+    const size_t suballoc2ndCount = suballocations2nd.size();
+
+    // FIRST PASS
+
+    size_t unusedRangeCount = 0;
+    UINT64 usedBytes = 0;
+
+    UINT64 lastOffset = 0;
+
+    size_t alloc2ndCount = 0;
+    if (m_2ndVectorMode == SECOND_VECTOR_RING_BUFFER)
+    {
+        const UINT64 freeSpace2ndTo1stEnd = suballocations1st[m_1stNullItemsBeginCount].offset;
+        size_t nextAlloc2ndIndex = 0;
+        while (lastOffset < freeSpace2ndTo1stEnd)
+        {
+            // Find next non-null allocation or move nextAlloc2ndIndex to the end.
+            while (nextAlloc2ndIndex < suballoc2ndCount &&
+                suballocations2nd[nextAlloc2ndIndex].privateData == NULL)
+            {
+                ++nextAlloc2ndIndex;
+            }
+
+            // Found non-null allocation.
+            if (nextAlloc2ndIndex < suballoc2ndCount)
+            {
+                const Suballocation& suballoc = suballocations2nd[nextAlloc2ndIndex];
+
+                // 1. Process free space before this allocation.
+                if (lastOffset < suballoc.offset)
+                {
+                    // There is free space from lastOffset to suballoc.offset.
+                    ++unusedRangeCount;
+                }
+
+                // 2. Process this allocation.
+                // There is allocation with suballoc.offset, suballoc.size.
+                ++alloc2ndCount;
+                usedBytes += suballoc.size;
+
+                // 3. Prepare for next iteration.
+                lastOffset = suballoc.offset + suballoc.size;
+                ++nextAlloc2ndIndex;
+            }
+            // We are at the end.
+            else
+            {
+                if (lastOffset < freeSpace2ndTo1stEnd)
+                {
+                    // There is free space from lastOffset to freeSpace2ndTo1stEnd.
+                    ++unusedRangeCount;
+                }
+
+                // End of loop.
+                lastOffset = freeSpace2ndTo1stEnd;
+            }
+        }
+    }
+
+    size_t nextAlloc1stIndex = m_1stNullItemsBeginCount;
+    size_t alloc1stCount = 0;
+    const UINT64 freeSpace1stTo2ndEnd =
+        m_2ndVectorMode == SECOND_VECTOR_DOUBLE_STACK ? suballocations2nd.back().offset : size;
+    while (lastOffset < freeSpace1stTo2ndEnd)
+    {
+        // Find next non-null allocation or move nextAllocIndex to the end.
+        while (nextAlloc1stIndex < suballoc1stCount &&
+            suballocations1st[nextAlloc1stIndex].privateData == NULL)
+        {
+            ++nextAlloc1stIndex;
+        }
+
+        // Found non-null allocation.
+        if (nextAlloc1stIndex < suballoc1stCount)
+        {
+            const Suballocation& suballoc = suballocations1st[nextAlloc1stIndex];
+
+            // 1. Process free space before this allocation.
+            if (lastOffset < suballoc.offset)
+            {
+                // There is free space from lastOffset to suballoc.offset.
+                ++unusedRangeCount;
+            }
+
+            // 2. Process this allocation.
+            // There is allocation with suballoc.offset, suballoc.size.
+            ++alloc1stCount;
+            usedBytes += suballoc.size;
+
+            // 3. Prepare for next iteration.
+            lastOffset = suballoc.offset + suballoc.size;
+            ++nextAlloc1stIndex;
+        }
+        // We are at the end.
+        else
+        {
+            if (lastOffset < size)
+            {
+                // There is free space from lastOffset to freeSpace1stTo2ndEnd.
+                ++unusedRangeCount;
+            }
+
+            // End of loop.
+            lastOffset = freeSpace1stTo2ndEnd;
+        }
+    }
+
+    if (m_2ndVectorMode == SECOND_VECTOR_DOUBLE_STACK)
+    {
+        size_t nextAlloc2ndIndex = suballocations2nd.size() - 1;
+        while (lastOffset < size)
+        {
+            // Find next non-null allocation or move nextAlloc2ndIndex to the end.
+            while (nextAlloc2ndIndex != SIZE_MAX &&
+                suballocations2nd[nextAlloc2ndIndex].privateData == NULL)
+            {
+                --nextAlloc2ndIndex;
+            }
+
+            // Found non-null allocation.
+            if (nextAlloc2ndIndex != SIZE_MAX)
+            {
+                const Suballocation& suballoc = suballocations2nd[nextAlloc2ndIndex];
+
+                // 1. Process free space before this allocation.
+                if (lastOffset < suballoc.offset)
+                {
+                    // There is free space from lastOffset to suballoc.offset.
+                    ++unusedRangeCount;
+                }
+
+                // 2. Process this allocation.
+                // There is allocation with suballoc.offset, suballoc.size.
+                ++alloc2ndCount;
+                usedBytes += suballoc.size;
+
+                // 3. Prepare for next iteration.
+                lastOffset = suballoc.offset + suballoc.size;
+                --nextAlloc2ndIndex;
+            }
+            // We are at the end.
+            else
+            {
+                if (lastOffset < size)
+                {
+                    // There is free space from lastOffset to size.
+                    ++unusedRangeCount;
+                }
+
+                // End of loop.
+                lastOffset = size;
+            }
+        }
+    }
+
+    const UINT64 unusedBytes = size - usedBytes;
+    PrintDetailedMap_Begin(json, unusedBytes, alloc1stCount + alloc2ndCount, unusedRangeCount);
+
+    // SECOND PASS
+    lastOffset = 0;
+    if (m_2ndVectorMode == SECOND_VECTOR_RING_BUFFER)
+    {
+        const UINT64 freeSpace2ndTo1stEnd = suballocations1st[m_1stNullItemsBeginCount].offset;
+        size_t nextAlloc2ndIndex = 0;
+        while (lastOffset < freeSpace2ndTo1stEnd)
+        {
+            // Find next non-null allocation or move nextAlloc2ndIndex to the end.
+            while (nextAlloc2ndIndex < suballoc2ndCount &&
+                suballocations2nd[nextAlloc2ndIndex].privateData == NULL)
+            {
+                ++nextAlloc2ndIndex;
+            }
+
+            // Found non-null allocation.
+            if (nextAlloc2ndIndex < suballoc2ndCount)
+            {
+                const Suballocation& suballoc = suballocations2nd[nextAlloc2ndIndex];
+
+                // 1. Process free space before this allocation.
+                if (lastOffset < suballoc.offset)
+                {
+                    // There is free space from lastOffset to suballoc.offset.
+                    const UINT64 unusedRangeSize = suballoc.offset - lastOffset;
+                    PrintDetailedMap_UnusedRange(json, lastOffset, unusedRangeSize);
+                }
+
+                // 2. Process this allocation.
+                // There is allocation with suballoc.offset, suballoc.size.
+                PrintDetailedMap_Allocation(json, suballoc.offset, suballoc.size, suballoc.privateData);
+
+                // 3. Prepare for next iteration.
+                lastOffset = suballoc.offset + suballoc.size;
+                ++nextAlloc2ndIndex;
+            }
+            // We are at the end.
+            else
+            {
+                if (lastOffset < freeSpace2ndTo1stEnd)
+                {
+                    // There is free space from lastOffset to freeSpace2ndTo1stEnd.
+                    const UINT64 unusedRangeSize = freeSpace2ndTo1stEnd - lastOffset;
+                    PrintDetailedMap_UnusedRange(json, lastOffset, unusedRangeSize);
+                }
+
+                // End of loop.
+                lastOffset = freeSpace2ndTo1stEnd;
+            }
+        }
+    }
+
+    nextAlloc1stIndex = m_1stNullItemsBeginCount;
+    while (lastOffset < freeSpace1stTo2ndEnd)
+    {
+        // Find next non-null allocation or move nextAllocIndex to the end.
+        while (nextAlloc1stIndex < suballoc1stCount &&
+            suballocations1st[nextAlloc1stIndex].privateData == NULL)
+        {
+            ++nextAlloc1stIndex;
+        }
+
+        // Found non-null allocation.
+        if (nextAlloc1stIndex < suballoc1stCount)
+        {
+            const Suballocation& suballoc = suballocations1st[nextAlloc1stIndex];
+
+            // 1. Process free space before this allocation.
+            if (lastOffset < suballoc.offset)
+            {
+                // There is free space from lastOffset to suballoc.offset.
+                const UINT64 unusedRangeSize = suballoc.offset - lastOffset;
+                PrintDetailedMap_UnusedRange(json, lastOffset, unusedRangeSize);
+            }
+
+            // 2. Process this allocation.
+            // There is allocation with suballoc.offset, suballoc.size.
+            PrintDetailedMap_Allocation(json, suballoc.offset, suballoc.size, suballoc.privateData);
+
+            // 3. Prepare for next iteration.
+            lastOffset = suballoc.offset + suballoc.size;
+            ++nextAlloc1stIndex;
+        }
+        // We are at the end.
+        else
+        {
+            if (lastOffset < freeSpace1stTo2ndEnd)
+            {
+                // There is free space from lastOffset to freeSpace1stTo2ndEnd.
+                const UINT64 unusedRangeSize = freeSpace1stTo2ndEnd - lastOffset;
+                PrintDetailedMap_UnusedRange(json, lastOffset, unusedRangeSize);
+            }
+
+            // End of loop.
+            lastOffset = freeSpace1stTo2ndEnd;
+        }
+    }
+
+    if (m_2ndVectorMode == SECOND_VECTOR_DOUBLE_STACK)
+    {
+        size_t nextAlloc2ndIndex = suballocations2nd.size() - 1;
+        while (lastOffset < size)
+        {
+            // Find next non-null allocation or move nextAlloc2ndIndex to the end.
+            while (nextAlloc2ndIndex != SIZE_MAX &&
+                suballocations2nd[nextAlloc2ndIndex].privateData == NULL)
+            {
+                --nextAlloc2ndIndex;
+            }
+
+            // Found non-null allocation.
+            if (nextAlloc2ndIndex != SIZE_MAX)
+            {
+                const Suballocation& suballoc = suballocations2nd[nextAlloc2ndIndex];
+
+                // 1. Process free space before this allocation.
+                if (lastOffset < suballoc.offset)
+                {
+                    // There is free space from lastOffset to suballoc.offset.
+                    const UINT64 unusedRangeSize = suballoc.offset - lastOffset;
+                    PrintDetailedMap_UnusedRange(json, lastOffset, unusedRangeSize);
+                }
+
+                // 2. Process this allocation.
+                // There is allocation with suballoc.offset, suballoc.size.
+                PrintDetailedMap_Allocation(json, suballoc.offset, suballoc.size, suballoc.privateData);
+
+                // 3. Prepare for next iteration.
+                lastOffset = suballoc.offset + suballoc.size;
+                --nextAlloc2ndIndex;
+            }
+            // We are at the end.
+            else
+            {
+                if (lastOffset < size)
+                {
+                    // There is free space from lastOffset to size.
+                    const UINT64 unusedRangeSize = size - lastOffset;
+                    PrintDetailedMap_UnusedRange(json, lastOffset, unusedRangeSize);
+                }
+
+                // End of loop.
+                lastOffset = size;
+            }
+        }
+    }
+
+    PrintDetailedMap_End(json);
+}
+
+void BlockMetadata_Linear::DebugLogAllAllocations() const
+{
+    const SuballocationVectorType& suballocations1st = AccessSuballocations1st();
+    for (auto it = suballocations1st.begin() + m_1stNullItemsBeginCount; it != suballocations1st.end(); ++it)
+        if (it->type != SUBALLOCATION_TYPE_FREE)
+            DebugLogAllocation(it->offset, it->size, it->privateData);
+
+    const SuballocationVectorType& suballocations2nd = AccessSuballocations2nd();
+    for (auto it = suballocations2nd.begin(); it != suballocations2nd.end(); ++it)
+        if (it->type != SUBALLOCATION_TYPE_FREE)
+            DebugLogAllocation(it->offset, it->size, it->privateData);
+}
+
+Suballocation& BlockMetadata_Linear::FindSuballocation(UINT64 offset) const
+{
+    const SuballocationVectorType& suballocations1st = AccessSuballocations1st();
+    const SuballocationVectorType& suballocations2nd = AccessSuballocations2nd();
+
+    Suballocation refSuballoc;
+    refSuballoc.offset = offset;
+    // Rest of members stays uninitialized intentionally for better performance.
+
+    // Item from the 1st vector.
+    {
+        const SuballocationVectorType::const_iterator it = BinaryFindSorted(
+            suballocations1st.begin() + m_1stNullItemsBeginCount,
+            suballocations1st.end(),
+            refSuballoc,
+            SuballocationOffsetLess());
+        if (it != suballocations1st.end())
+        {
+            return const_cast<Suballocation&>(*it);
+        }
+    }
+
+    if (m_2ndVectorMode != SECOND_VECTOR_EMPTY)
+    {
+        // Rest of members stays uninitialized intentionally for better performance.
+        const SuballocationVectorType::const_iterator it = m_2ndVectorMode == SECOND_VECTOR_RING_BUFFER ?
+            BinaryFindSorted(suballocations2nd.begin(), suballocations2nd.end(), refSuballoc, SuballocationOffsetLess()) :
+            BinaryFindSorted(suballocations2nd.begin(), suballocations2nd.end(), refSuballoc, SuballocationOffsetGreater());
+        if (it != suballocations2nd.end())
+        {
+            return const_cast<Suballocation&>(*it);
+        }
+    }
+
+    D3D12MA_ASSERT(0 && "Allocation not found in linear allocator!");
+    return const_cast<Suballocation&>(suballocations1st.back()); // Should never occur.
+}
+
+bool BlockMetadata_Linear::ShouldCompact1st() const
+{
+    const size_t nullItemCount = m_1stNullItemsBeginCount + m_1stNullItemsMiddleCount;
+    const size_t suballocCount = AccessSuballocations1st().size();
+    return suballocCount > 32 && nullItemCount * 2 >= (suballocCount - nullItemCount) * 3;
+}
+
+void BlockMetadata_Linear::CleanupAfterFree()
+{
+    SuballocationVectorType& suballocations1st = AccessSuballocations1st();
+    SuballocationVectorType& suballocations2nd = AccessSuballocations2nd();
+
+    if (IsEmpty())
+    {
+        suballocations1st.clear();
+        suballocations2nd.clear();
+        m_1stNullItemsBeginCount = 0;
+        m_1stNullItemsMiddleCount = 0;
+        m_2ndNullItemsCount = 0;
+        m_2ndVectorMode = SECOND_VECTOR_EMPTY;
+    }
+    else
+    {
+        const size_t suballoc1stCount = suballocations1st.size();
+        const size_t nullItem1stCount = m_1stNullItemsBeginCount + m_1stNullItemsMiddleCount;
+        D3D12MA_ASSERT(nullItem1stCount <= suballoc1stCount);
+
+        // Find more null items at the beginning of 1st vector.
+        while (m_1stNullItemsBeginCount < suballoc1stCount &&
+            suballocations1st[m_1stNullItemsBeginCount].type == SUBALLOCATION_TYPE_FREE)
+        {
+            ++m_1stNullItemsBeginCount;
+            --m_1stNullItemsMiddleCount;
+        }
+
+        // Find more null items at the end of 1st vector.
+        while (m_1stNullItemsMiddleCount > 0 &&
+            suballocations1st.back().type == SUBALLOCATION_TYPE_FREE)
+        {
+            --m_1stNullItemsMiddleCount;
+            suballocations1st.pop_back();
+        }
+
+        // Find more null items at the end of 2nd vector.
+        while (m_2ndNullItemsCount > 0 &&
+            suballocations2nd.back().type == SUBALLOCATION_TYPE_FREE)
+        {
+            --m_2ndNullItemsCount;
+            suballocations2nd.pop_back();
+        }
+
+        // Find more null items at the beginning of 2nd vector.
+        while (m_2ndNullItemsCount > 0 &&
+            suballocations2nd[0].type == SUBALLOCATION_TYPE_FREE)
+        {
+            --m_2ndNullItemsCount;
+            suballocations2nd.remove(0);
+        }
+
+        if (ShouldCompact1st())
+        {
+            const size_t nonNullItemCount = suballoc1stCount - nullItem1stCount;
+            size_t srcIndex = m_1stNullItemsBeginCount;
+            for (size_t dstIndex = 0; dstIndex < nonNullItemCount; ++dstIndex)
+            {
+                while (suballocations1st[srcIndex].type == SUBALLOCATION_TYPE_FREE)
+                {
+                    ++srcIndex;
+                }
+                if (dstIndex != srcIndex)
+                {
+                    suballocations1st[dstIndex] = suballocations1st[srcIndex];
+                }
+                ++srcIndex;
+            }
+            suballocations1st.resize(nonNullItemCount);
+            m_1stNullItemsBeginCount = 0;
+            m_1stNullItemsMiddleCount = 0;
+        }
+
+        // 2nd vector became empty.
+        if (suballocations2nd.empty())
+        {
+            m_2ndVectorMode = SECOND_VECTOR_EMPTY;
+        }
+
+        // 1st vector became empty.
+        if (suballocations1st.size() - m_1stNullItemsBeginCount == 0)
+        {
+            suballocations1st.clear();
+            m_1stNullItemsBeginCount = 0;
+
+            if (!suballocations2nd.empty() && m_2ndVectorMode == SECOND_VECTOR_RING_BUFFER)
+            {
+                // Swap 1st with 2nd. Now 2nd is empty.
+                m_2ndVectorMode = SECOND_VECTOR_EMPTY;
+                m_1stNullItemsMiddleCount = m_2ndNullItemsCount;
+                while (m_1stNullItemsBeginCount < suballocations2nd.size() &&
+                    suballocations2nd[m_1stNullItemsBeginCount].type == SUBALLOCATION_TYPE_FREE)
+                {
+                    ++m_1stNullItemsBeginCount;
+                    --m_1stNullItemsMiddleCount;
+                }
+                m_2ndNullItemsCount = 0;
+                m_1stVectorIndex ^= 1;
+            }
+        }
+    }
+
+    D3D12MA_HEAVY_ASSERT(Validate());
+}
+
+bool BlockMetadata_Linear::CreateAllocationRequest_LowerAddress(
+    UINT64 allocSize,
+    UINT64 allocAlignment,
+    AllocationRequest* pAllocationRequest)
+{
+    const UINT64 blockSize = GetSize();
+    SuballocationVectorType& suballocations1st = AccessSuballocations1st();
+    SuballocationVectorType& suballocations2nd = AccessSuballocations2nd();
+
+    if (m_2ndVectorMode == SECOND_VECTOR_EMPTY || m_2ndVectorMode == SECOND_VECTOR_DOUBLE_STACK)
+    {
+        // Try to allocate at the end of 1st vector.
+
+        UINT64 resultBaseOffset = 0;
+        if (!suballocations1st.empty())
+        {
+            const Suballocation& lastSuballoc = suballocations1st.back();
+            resultBaseOffset = lastSuballoc.offset + lastSuballoc.size + GetDebugMargin();
+        }
+
+        // Start from offset equal to beginning of free space.
+        UINT64 resultOffset = resultBaseOffset;
+        // Apply alignment.
+        resultOffset = AlignUp(resultOffset, allocAlignment);
+
+        const UINT64 freeSpaceEnd = m_2ndVectorMode == SECOND_VECTOR_DOUBLE_STACK ?
+            suballocations2nd.back().offset : blockSize;
+
+        // There is enough free space at the end after alignment.
+        if (resultOffset + allocSize + GetDebugMargin() <= freeSpaceEnd)
+        {
+            // All tests passed: Success.
+            pAllocationRequest->allocHandle = (AllocHandle)(resultOffset + 1);
+            // pAllocationRequest->item, customData unused.
+            pAllocationRequest->algorithmData = ALLOC_REQUEST_END_OF_1ST;
+            return true;
+        }
+    }
+
+    // Wrap-around to end of 2nd vector. Try to allocate there, watching for the
+    // beginning of 1st vector as the end of free space.
+    if (m_2ndVectorMode == SECOND_VECTOR_EMPTY || m_2ndVectorMode == SECOND_VECTOR_RING_BUFFER)
+    {
+        D3D12MA_ASSERT(!suballocations1st.empty());
+
+        UINT64 resultBaseOffset = 0;
+        if (!suballocations2nd.empty())
+        {
+            const Suballocation& lastSuballoc = suballocations2nd.back();
+            resultBaseOffset = lastSuballoc.offset + lastSuballoc.size + GetDebugMargin();
+        }
+
+        // Start from offset equal to beginning of free space.
+        UINT64 resultOffset = resultBaseOffset;
+
+        // Apply alignment.
+        resultOffset = AlignUp(resultOffset, allocAlignment);
+
+        size_t index1st = m_1stNullItemsBeginCount;
+        // There is enough free space at the end after alignment.
+        if ((index1st == suballocations1st.size() && resultOffset + allocSize + GetDebugMargin() <= blockSize) ||
+            (index1st < suballocations1st.size() && resultOffset + allocSize + GetDebugMargin() <= suballocations1st[index1st].offset))
+        {
+            // All tests passed: Success.
+            pAllocationRequest->allocHandle = (AllocHandle)(resultOffset + 1);
+            pAllocationRequest->algorithmData = ALLOC_REQUEST_END_OF_2ND;
+            // pAllocationRequest->item, customData unused.
+            return true;
+        }
+    }
+    return false;
+}
+
+bool BlockMetadata_Linear::CreateAllocationRequest_UpperAddress(
+    UINT64 allocSize,
+    UINT64 allocAlignment,
+    AllocationRequest* pAllocationRequest)
+{
+    const UINT64 blockSize = GetSize();
+    SuballocationVectorType& suballocations1st = AccessSuballocations1st();
+    SuballocationVectorType& suballocations2nd = AccessSuballocations2nd();
+
+    if (m_2ndVectorMode == SECOND_VECTOR_RING_BUFFER)
+    {
+        D3D12MA_ASSERT(0 && "Trying to use pool with linear algorithm as double stack, while it is already being used as ring buffer.");
+        return false;
+    }
+
+    // Try to allocate before 2nd.back(), or end of block if 2nd.empty().
+    if (allocSize > blockSize)
+    {
+        return false;
+    }
+    UINT64 resultBaseOffset = blockSize - allocSize;
+    if (!suballocations2nd.empty())
+    {
+        const Suballocation& lastSuballoc = suballocations2nd.back();
+        resultBaseOffset = lastSuballoc.offset - allocSize;
+        if (allocSize > lastSuballoc.offset)
+        {
+            return false;
+        }
+    }
+
+    // Start from offset equal to end of free space.
+    UINT64 resultOffset = resultBaseOffset;
+    // Apply debugMargin at the end.
+    if (GetDebugMargin() > 0)
+    {
+        if (resultOffset < GetDebugMargin())
+        {
+            return false;
+        }
+        resultOffset -= GetDebugMargin();
+    }
+
+    // Apply alignment.
+    resultOffset = AlignDown(resultOffset, allocAlignment);
+    // There is enough free space.
+    const UINT64 endOf1st = !suballocations1st.empty() ?
+        suballocations1st.back().offset + suballocations1st.back().size : 0;
+
+    if (endOf1st + GetDebugMargin() <= resultOffset)
+    {
+        // All tests passed: Success.
+        pAllocationRequest->allocHandle = (AllocHandle)(resultOffset + 1);
+        // pAllocationRequest->item unused.
+        pAllocationRequest->algorithmData = ALLOC_REQUEST_UPPER_ADDRESS;
+        return true;
+    }
+    return false;
+}
+#endif // _D3D12MA_BLOCK_METADATA_LINEAR_FUNCTIONS
+#endif // _D3D12MA_BLOCK_METADATA_LINEAR
+
+#ifndef _D3D12MA_BLOCK_METADATA_TLSF
+class BlockMetadata_TLSF : public BlockMetadata
+{
+public:
+    BlockMetadata_TLSF(const ALLOCATION_CALLBACKS* allocationCallbacks, bool isVirtual);
+    virtual ~BlockMetadata_TLSF();
+
+    size_t GetAllocationCount() const override { return m_AllocCount; }
+    size_t GetFreeRegionsCount() const override { return m_BlocksFreeCount + 1; }
+    UINT64 GetSumFreeSize() const override { return m_BlocksFreeSize + m_NullBlock->size; }
+    bool IsEmpty() const override { return m_NullBlock->offset == 0; }
+    UINT64 GetAllocationOffset(AllocHandle allocHandle) const override { return ((Block*)allocHandle)->offset; };
+
+    void Init(UINT64 size) override;
+    bool Validate() const override;
+    void GetAllocationInfo(AllocHandle allocHandle, VIRTUAL_ALLOCATION_INFO& outInfo) const override;
+
+    bool CreateAllocationRequest(
+        UINT64 allocSize,
+        UINT64 allocAlignment,
+        bool upperAddress,
+        UINT32 strategy,
+        AllocationRequest* pAllocationRequest) override;
+
+    void Alloc(
+        const AllocationRequest& request,
+        UINT64 allocSize,
+        void* privateData) override;
+
+    void Free(AllocHandle allocHandle) override;
+    void Clear() override;
+
+    AllocHandle GetAllocationListBegin() const override;
+    AllocHandle GetNextAllocation(AllocHandle prevAlloc) const override;
+    UINT64 GetNextFreeRegionSize(AllocHandle alloc) const override;
+    void* GetAllocationPrivateData(AllocHandle allocHandle) const override;
+    void SetAllocationPrivateData(AllocHandle allocHandle, void* privateData) override;
+
+    void AddStatistics(Statistics& inoutStats) const override;
+    void AddDetailedStatistics(DetailedStatistics& inoutStats) const override;
+    void WriteAllocationInfoToJson(JsonWriter& json) const override;
+    void DebugLogAllAllocations() const override;
+
+private:
+    // According to original paper it should be preferable 4 or 5:
+    // M. Masmano, I. Ripoll, A. Crespo, and J. Real "TLSF: a New Dynamic Memory Allocator for Real-Time Systems"
+    // http://www.gii.upv.es/tlsf/files/ecrts04_tlsf.pdf
+    static const UINT8 SECOND_LEVEL_INDEX = 5;
+    static const UINT16 SMALL_BUFFER_SIZE = 256;
+    static const UINT INITIAL_BLOCK_ALLOC_COUNT = 16;
+    static const UINT8 MEMORY_CLASS_SHIFT = 7;
+    static const UINT8 MAX_MEMORY_CLASSES = 65 - MEMORY_CLASS_SHIFT;
+
+    class Block
+    {
+    public:
+        UINT64 offset;
+        UINT64 size;
+        Block* prevPhysical;
+        Block* nextPhysical;
+
+        void MarkFree() { prevFree = NULL; }
+        void MarkTaken() { prevFree = this; }
+        bool IsFree() const { return prevFree != this; }
+        void*& PrivateData() { D3D12MA_HEAVY_ASSERT(!IsFree()); return privateData; }
+        Block*& PrevFree() { return prevFree; }
+        Block*& NextFree() { D3D12MA_HEAVY_ASSERT(IsFree()); return nextFree; }
+
+    private:
+        Block* prevFree; // Address of the same block here indicates that block is taken
+        union
+        {
+            Block* nextFree;
+            void* privateData;
+        };
+    };
+    
+    size_t m_AllocCount = 0;
+    // Total number of free blocks besides null block
+    size_t m_BlocksFreeCount = 0;
+    // Total size of free blocks excluding null block
+    UINT64 m_BlocksFreeSize = 0;
+    UINT32 m_IsFreeBitmap = 0;
+    UINT8 m_MemoryClasses = 0;
+    UINT32 m_InnerIsFreeBitmap[MAX_MEMORY_CLASSES];
+    UINT32 m_ListsCount = 0;
+    /*
+    * 0: 0-3 lists for small buffers
+    * 1+: 0-(2^SLI-1) lists for normal buffers
+    */
+    Block** m_FreeList = NULL;
+    PoolAllocator<Block> m_BlockAllocator;
+    Block* m_NullBlock = NULL;
+
+    UINT8 SizeToMemoryClass(UINT64 size) const;
+    UINT16 SizeToSecondIndex(UINT64 size, UINT8 memoryClass) const;
+    UINT32 GetListIndex(UINT8 memoryClass, UINT16 secondIndex) const;
+    UINT32 GetListIndex(UINT64 size) const;
+
+    void RemoveFreeBlock(Block* block);
+    void InsertFreeBlock(Block* block);
+    void MergeBlock(Block* block, Block* prev);
+
+    Block* FindFreeBlock(UINT64 size, UINT32& listIndex) const;
+    bool CheckBlock(
+        Block& block,
+        UINT32 listIndex,
+        UINT64 allocSize,
+        UINT64 allocAlignment,
+        AllocationRequest* pAllocationRequest);
+
+    D3D12MA_CLASS_NO_COPY(BlockMetadata_TLSF)
+};
+
+#ifndef _D3D12MA_BLOCK_METADATA_TLSF_FUNCTIONS
+BlockMetadata_TLSF::BlockMetadata_TLSF(const ALLOCATION_CALLBACKS* allocationCallbacks, bool isVirtual)
+    : BlockMetadata(allocationCallbacks, isVirtual),
+    m_BlockAllocator(*allocationCallbacks, INITIAL_BLOCK_ALLOC_COUNT)
+{
+    D3D12MA_ASSERT(allocationCallbacks);
+}
+
+BlockMetadata_TLSF::~BlockMetadata_TLSF()
+{
+    D3D12MA_DELETE_ARRAY(*GetAllocs(), m_FreeList, m_ListsCount);
+}
+
+void BlockMetadata_TLSF::Init(UINT64 size)
+{
+    BlockMetadata::Init(size);
+
+    m_NullBlock = m_BlockAllocator.Alloc();
+    m_NullBlock->size = size;
+    m_NullBlock->offset = 0;
+    m_NullBlock->prevPhysical = NULL;
+    m_NullBlock->nextPhysical = NULL;
+    m_NullBlock->MarkFree();
+    m_NullBlock->NextFree() = NULL;
+    m_NullBlock->PrevFree() = NULL;
+    UINT8 memoryClass = SizeToMemoryClass(size);
+    UINT16 sli = SizeToSecondIndex(size, memoryClass);
+    m_ListsCount = (memoryClass == 0 ? 0 : (memoryClass - 1) * (1UL << SECOND_LEVEL_INDEX) + sli) + 1;
+    if (IsVirtual())
+        m_ListsCount += 1UL << SECOND_LEVEL_INDEX;
+    else
+        m_ListsCount += 4;
+
+    m_MemoryClasses = memoryClass + 2;
+    memset(m_InnerIsFreeBitmap, 0, MAX_MEMORY_CLASSES * sizeof(UINT32));
+
+    m_FreeList = D3D12MA_NEW_ARRAY(*GetAllocs(), Block*, m_ListsCount);
+    memset(m_FreeList, 0, m_ListsCount * sizeof(Block*));
+}
+
+bool BlockMetadata_TLSF::Validate() const
+{
+    D3D12MA_VALIDATE(GetSumFreeSize() <= GetSize());
+
+    UINT64 calculatedSize = m_NullBlock->size;
+    UINT64 calculatedFreeSize = m_NullBlock->size;
+    size_t allocCount = 0;
+    size_t freeCount = 0;
+
+    // Check integrity of free lists
+    for (UINT32 list = 0; list < m_ListsCount; ++list)
+    {
+        Block* block = m_FreeList[list];
+        if (block != NULL)
+        {
+            D3D12MA_VALIDATE(block->IsFree());
+            D3D12MA_VALIDATE(block->PrevFree() == NULL);
+            while (block->NextFree())
+            {
+                D3D12MA_VALIDATE(block->NextFree()->IsFree());
+                D3D12MA_VALIDATE(block->NextFree()->PrevFree() == block);
+                block = block->NextFree();
+            }
+        }
+    }
+
+    D3D12MA_VALIDATE(m_NullBlock->nextPhysical == NULL);
+    if (m_NullBlock->prevPhysical)
+    {
+        D3D12MA_VALIDATE(m_NullBlock->prevPhysical->nextPhysical == m_NullBlock);
+    }
+
+    // Check all blocks
+    UINT64 nextOffset = m_NullBlock->offset;
+    for (Block* prev = m_NullBlock->prevPhysical; prev != NULL; prev = prev->prevPhysical)
+    {
+        D3D12MA_VALIDATE(prev->offset + prev->size == nextOffset);
+        nextOffset = prev->offset;
+        calculatedSize += prev->size;
+
+        UINT32 listIndex = GetListIndex(prev->size);
+        if (prev->IsFree())
+        {
+            ++freeCount;
+            // Check if free block belongs to free list
+            Block* freeBlock = m_FreeList[listIndex];
+            D3D12MA_VALIDATE(freeBlock != NULL);
+
+            bool found = false;
+            do
+            {
+                if (freeBlock == prev)
+                    found = true;
+
+                freeBlock = freeBlock->NextFree();
+            } while (!found && freeBlock != NULL);
+
+            D3D12MA_VALIDATE(found);
+            calculatedFreeSize += prev->size;
+        }
+        else
+        {
+            ++allocCount;
+            // Check if taken block is not on a free list
+            Block* freeBlock = m_FreeList[listIndex];
+            while (freeBlock)
+            {
+                D3D12MA_VALIDATE(freeBlock != prev);
+                freeBlock = freeBlock->NextFree();
+            }
+        }
+
+        if (prev->prevPhysical)
+        {
+            D3D12MA_VALIDATE(prev->prevPhysical->nextPhysical == prev);
+        }
+    }
+
+    D3D12MA_VALIDATE(nextOffset == 0);
+    D3D12MA_VALIDATE(calculatedSize == GetSize());
+    D3D12MA_VALIDATE(calculatedFreeSize == GetSumFreeSize());
+    D3D12MA_VALIDATE(allocCount == m_AllocCount);
+    D3D12MA_VALIDATE(freeCount == m_BlocksFreeCount);
+
+    return true;
+}
+
+void BlockMetadata_TLSF::GetAllocationInfo(AllocHandle allocHandle, VIRTUAL_ALLOCATION_INFO& outInfo) const
+{
+    Block* block = (Block*)allocHandle;
+    D3D12MA_ASSERT(!block->IsFree() && "Cannot get allocation info for free block!");
+    outInfo.Offset = block->offset;
+    outInfo.Size = block->size;
+    outInfo.pPrivateData = block->PrivateData();
+}
+
+bool BlockMetadata_TLSF::CreateAllocationRequest(
+    UINT64 allocSize,
+    UINT64 allocAlignment,
+    bool upperAddress,
+    UINT32 strategy,
+    AllocationRequest* pAllocationRequest)
+{
+    D3D12MA_ASSERT(allocSize > 0 && "Cannot allocate empty block!");
+    D3D12MA_ASSERT(!upperAddress && "ALLOCATION_FLAG_UPPER_ADDRESS can be used only with linear algorithm.");
+    D3D12MA_ASSERT(pAllocationRequest != NULL);
+    D3D12MA_HEAVY_ASSERT(Validate());
+
+    allocSize += GetDebugMargin();
+    // Quick check for too small pool
+    if (allocSize > GetSumFreeSize())
+        return false;
+
+    // If no free blocks in pool then check only null block
+    if (m_BlocksFreeCount == 0)
+        return CheckBlock(*m_NullBlock, m_ListsCount, allocSize, allocAlignment, pAllocationRequest);
+
+    // Round up to the next block
+    UINT64 sizeForNextList = allocSize;
+    UINT16 smallSizeStep = SMALL_BUFFER_SIZE / (IsVirtual() ? 1 << SECOND_LEVEL_INDEX : 4);
+    if (allocSize > SMALL_BUFFER_SIZE)
+    {
+        sizeForNextList += (1ULL << (BitScanMSB(allocSize) - SECOND_LEVEL_INDEX));
+    }
+    else if (allocSize > SMALL_BUFFER_SIZE - smallSizeStep)
+        sizeForNextList = SMALL_BUFFER_SIZE + 1;
+    else
+        sizeForNextList += smallSizeStep;
+
+    UINT32 nextListIndex = 0;
+    UINT32 prevListIndex = 0;
+    Block* nextListBlock = NULL;
+    Block* prevListBlock = NULL;
+
+    // Check blocks according to strategies
+    if (strategy & ALLOCATION_FLAG_STRATEGY_MIN_TIME)
+    {
+        // Quick check for larger block first
+        nextListBlock = FindFreeBlock(sizeForNextList, nextListIndex);
+        if (nextListBlock != NULL && CheckBlock(*nextListBlock, nextListIndex, allocSize, allocAlignment, pAllocationRequest))
+            return true;
+
+        // If not fitted then null block
+        if (CheckBlock(*m_NullBlock, m_ListsCount, allocSize, allocAlignment, pAllocationRequest))
+            return true;
+
+        // Null block failed, search larger bucket
+        while (nextListBlock)
+        {
+            if (CheckBlock(*nextListBlock, nextListIndex, allocSize, allocAlignment, pAllocationRequest))
+                return true;
+            nextListBlock = nextListBlock->NextFree();
+        }
+
+        // Failed again, check best fit bucket
+        prevListBlock = FindFreeBlock(allocSize, prevListIndex);
+        while (prevListBlock)
+        {
+            if (CheckBlock(*prevListBlock, prevListIndex, allocSize, allocAlignment, pAllocationRequest))
+                return true;
+            prevListBlock = prevListBlock->NextFree();
+        }
+    }
+    else if (strategy & ALLOCATION_FLAG_STRATEGY_MIN_MEMORY)
+    {
+        // Check best fit bucket
+        prevListBlock = FindFreeBlock(allocSize, prevListIndex);
+        while (prevListBlock)
+        {
+            if (CheckBlock(*prevListBlock, prevListIndex, allocSize, allocAlignment, pAllocationRequest))
+                return true;
+            prevListBlock = prevListBlock->NextFree();
+        }
+
+        // If failed check null block
+        if (CheckBlock(*m_NullBlock, m_ListsCount, allocSize, allocAlignment, pAllocationRequest))
+            return true;
+
+        // Check larger bucket
+        nextListBlock = FindFreeBlock(sizeForNextList, nextListIndex);
+        while (nextListBlock)
+        {
+            if (CheckBlock(*nextListBlock, nextListIndex, allocSize, allocAlignment, pAllocationRequest))
+                return true;
+            nextListBlock = nextListBlock->NextFree();
+        }
+    }
+    else if (strategy & ALLOCATION_FLAG_STRATEGY_MIN_OFFSET)
+    {
+        // Perform search from the start
+        Vector<Block*> blockList(m_BlocksFreeCount, *GetAllocs());
+
+        size_t i = m_BlocksFreeCount;
+        for (Block* block = m_NullBlock->prevPhysical; block != NULL; block = block->prevPhysical)
+        {
+            if (block->IsFree() && block->size >= allocSize)
+                blockList[--i] = block;
+        }
+
+        for (; i < m_BlocksFreeCount; ++i)
+        {
+            Block& block = *blockList[i];
+            if (CheckBlock(block, GetListIndex(block.size), allocSize, allocAlignment, pAllocationRequest))
+                return true;
+        }
+
+        // If failed check null block
+        if (CheckBlock(*m_NullBlock, m_ListsCount, allocSize, allocAlignment, pAllocationRequest))
+            return true;
+
+        // Whole range searched, no more memory
+        return false;
+    }
+    else
+    {
+        // Check larger bucket
+        nextListBlock = FindFreeBlock(sizeForNextList, nextListIndex);
+        while (nextListBlock)
+        {
+            if (CheckBlock(*nextListBlock, nextListIndex, allocSize, allocAlignment, pAllocationRequest))
+                return true;
+            nextListBlock = nextListBlock->NextFree();
+        }
+
+        // If failed check null block
+        if (CheckBlock(*m_NullBlock, m_ListsCount, allocSize, allocAlignment, pAllocationRequest))
+            return true;
+
+        // Check best fit bucket
+        prevListBlock = FindFreeBlock(allocSize, prevListIndex);
+        while (prevListBlock)
+        {
+            if (CheckBlock(*prevListBlock, prevListIndex, allocSize, allocAlignment, pAllocationRequest))
+                return true;
+            prevListBlock = prevListBlock->NextFree();
+        }
+    }
+
+    // Worst case, full search has to be done
+    while (++nextListIndex < m_ListsCount)
+    {
+        nextListBlock = m_FreeList[nextListIndex];
+        while (nextListBlock)
+        {
+            if (CheckBlock(*nextListBlock, nextListIndex, allocSize, allocAlignment, pAllocationRequest))
+                return true;
+            nextListBlock = nextListBlock->NextFree();
+        }
+    }
+
+    // No more memory sadly
+    return false;
+}
+
+void BlockMetadata_TLSF::Alloc(
+    const AllocationRequest& request,
+    UINT64 allocSize,
+    void* privateData)
+{
+    // Get block and pop it from the free list
+    Block* currentBlock = (Block*)request.allocHandle;
+    UINT64 offset = request.algorithmData;
+    D3D12MA_ASSERT(currentBlock != NULL);
+    D3D12MA_ASSERT(currentBlock->offset <= offset);
+
+    if (currentBlock != m_NullBlock)
+        RemoveFreeBlock(currentBlock);
+
+    // Append missing alignment to prev block or create new one
+    UINT64 misssingAlignment = offset - currentBlock->offset;
+    if (misssingAlignment)
+    {
+        Block* prevBlock = currentBlock->prevPhysical;
+        D3D12MA_ASSERT(prevBlock != NULL && "There should be no missing alignment at offset 0!");
+
+        if (prevBlock->IsFree() && prevBlock->size != GetDebugMargin())
+        {
+            UINT32 oldList = GetListIndex(prevBlock->size);
+            prevBlock->size += misssingAlignment;
+            // Check if new size crosses list bucket
+            if (oldList != GetListIndex(prevBlock->size))
+            {
+                prevBlock->size -= misssingAlignment;
+                RemoveFreeBlock(prevBlock);
+                prevBlock->size += misssingAlignment;
+                InsertFreeBlock(prevBlock);
+            }
+            else
+                m_BlocksFreeSize += misssingAlignment;
+        }
+        else
+        {
+            Block* newBlock = m_BlockAllocator.Alloc();
+            currentBlock->prevPhysical = newBlock;
+            prevBlock->nextPhysical = newBlock;
+            newBlock->prevPhysical = prevBlock;
+            newBlock->nextPhysical = currentBlock;
+            newBlock->size = misssingAlignment;
+            newBlock->offset = currentBlock->offset;
+            newBlock->MarkTaken();
+
+            InsertFreeBlock(newBlock);
+        }
+
+        currentBlock->size -= misssingAlignment;
+        currentBlock->offset += misssingAlignment;
+    }
+
+    UINT64 size = request.size + GetDebugMargin();
+    if (currentBlock->size == size)
+    {
+        if (currentBlock == m_NullBlock)
+        {
+            // Setup new null block
+            m_NullBlock = m_BlockAllocator.Alloc();
+            m_NullBlock->size = 0;
+            m_NullBlock->offset = currentBlock->offset + size;
+            m_NullBlock->prevPhysical = currentBlock;
+            m_NullBlock->nextPhysical = NULL;
+            m_NullBlock->MarkFree();
+            m_NullBlock->PrevFree() = NULL;
+            m_NullBlock->NextFree() = NULL;
+            currentBlock->nextPhysical = m_NullBlock;
+            currentBlock->MarkTaken();
+        }
+    }
+    else
+    {
+        D3D12MA_ASSERT(currentBlock->size > size && "Proper block already found, shouldn't find smaller one!");
+
+        // Create new free block
+        Block* newBlock = m_BlockAllocator.Alloc();
+        newBlock->size = currentBlock->size - size;
+        newBlock->offset = currentBlock->offset + size;
+        newBlock->prevPhysical = currentBlock;
+        newBlock->nextPhysical = currentBlock->nextPhysical;
+        currentBlock->nextPhysical = newBlock;
+        currentBlock->size = size;
+
+        if (currentBlock == m_NullBlock)
+        {
+            m_NullBlock = newBlock;
+            m_NullBlock->MarkFree();
+            m_NullBlock->NextFree() = NULL;
+            m_NullBlock->PrevFree() = NULL;
+            currentBlock->MarkTaken();
+        }
+        else
+        {
+            newBlock->nextPhysical->prevPhysical = newBlock;
+            newBlock->MarkTaken();
+            InsertFreeBlock(newBlock);
+        }
+    }
+    currentBlock->PrivateData() = privateData;
+
+    if (GetDebugMargin() > 0)
+    {
+        currentBlock->size -= GetDebugMargin();
+        Block* newBlock = m_BlockAllocator.Alloc();
+        newBlock->size = GetDebugMargin();
+        newBlock->offset = currentBlock->offset + currentBlock->size;
+        newBlock->prevPhysical = currentBlock;
+        newBlock->nextPhysical = currentBlock->nextPhysical;
+        newBlock->MarkTaken();
+        currentBlock->nextPhysical->prevPhysical = newBlock;
+        currentBlock->nextPhysical = newBlock;
+        InsertFreeBlock(newBlock);
+    }
+    ++m_AllocCount;
+}
+
+void BlockMetadata_TLSF::Free(AllocHandle allocHandle)
+{
+    Block* block = (Block*)allocHandle;
+    Block* next = block->nextPhysical;
+    D3D12MA_ASSERT(!block->IsFree() && "Block is already free!");
+
+    --m_AllocCount;
+    if (GetDebugMargin() > 0)
+    {
+        RemoveFreeBlock(next);
+        MergeBlock(next, block);
+        block = next;
+        next = next->nextPhysical;
+    }
+
+    // Try merging
+    Block* prev = block->prevPhysical;
+    if (prev != NULL && prev->IsFree() && prev->size != GetDebugMargin())
+    {
+        RemoveFreeBlock(prev);
+        MergeBlock(block, prev);
+    }
+
+    if (!next->IsFree())
+        InsertFreeBlock(block);
+    else if (next == m_NullBlock)
+        MergeBlock(m_NullBlock, block);
+    else
+    {
+        RemoveFreeBlock(next);
+        MergeBlock(next, block);
+        InsertFreeBlock(next);
+    }
+}
+
+void BlockMetadata_TLSF::Clear()
+{
+    m_AllocCount = 0;
+    m_BlocksFreeCount = 0;
+    m_BlocksFreeSize = 0;
+    m_IsFreeBitmap = 0;
+    m_NullBlock->offset = 0;
+    m_NullBlock->size = GetSize();
+    Block* block = m_NullBlock->prevPhysical;
+    m_NullBlock->prevPhysical = NULL;
+    while (block)
+    {
+        Block* prev = block->prevPhysical;
+        m_BlockAllocator.Free(block);
+        block = prev;
+    }
+    memset(m_FreeList, 0, m_ListsCount * sizeof(Block*));
+    memset(m_InnerIsFreeBitmap, 0, m_MemoryClasses * sizeof(UINT32));
+}
+
+AllocHandle BlockMetadata_TLSF::GetAllocationListBegin() const
+{
+    if (m_AllocCount == 0)
+        return (AllocHandle)0;
+
+    for (Block* block = m_NullBlock->prevPhysical; block; block = block->prevPhysical)
+    {
+        if (!block->IsFree())
+            return (AllocHandle)block;
+    }
+    D3D12MA_ASSERT(false && "If m_AllocCount > 0 then should find any allocation!");
+    return (AllocHandle)0;
+}
+
+AllocHandle BlockMetadata_TLSF::GetNextAllocation(AllocHandle prevAlloc) const
+{
+    Block* startBlock = (Block*)prevAlloc;
+    D3D12MA_ASSERT(!startBlock->IsFree() && "Incorrect block!");
+
+    for (Block* block = startBlock->prevPhysical; block; block = block->prevPhysical)
+    {
+        if (!block->IsFree())
+            return (AllocHandle)block;
+    }
+    return (AllocHandle)0;
+}
+
+UINT64 BlockMetadata_TLSF::GetNextFreeRegionSize(AllocHandle alloc) const
+{
+    Block* block = (Block*)alloc;
+    D3D12MA_ASSERT(!block->IsFree() && "Incorrect block!");
+
+    if (block->prevPhysical)
+        return block->prevPhysical->IsFree() ? block->prevPhysical->size : 0;
+    return 0;
+}
+
+void* BlockMetadata_TLSF::GetAllocationPrivateData(AllocHandle allocHandle) const
+{
+    Block* block = (Block*)allocHandle;
+    D3D12MA_ASSERT(!block->IsFree() && "Cannot get user data for free block!");
+    return block->PrivateData();
+}
+
+void BlockMetadata_TLSF::SetAllocationPrivateData(AllocHandle allocHandle, void* privateData)
+{
+    Block* block = (Block*)allocHandle;
+    D3D12MA_ASSERT(!block->IsFree() && "Trying to set user data for not allocated block!");
+    block->PrivateData() = privateData;
+}
+
+void BlockMetadata_TLSF::AddStatistics(Statistics& inoutStats) const
+{
+    inoutStats.BlockCount++;
+    inoutStats.AllocationCount += static_cast<UINT>(m_AllocCount);
+    inoutStats.BlockBytes += GetSize();
+    inoutStats.AllocationBytes += GetSize() - GetSumFreeSize();
+}
+
+void BlockMetadata_TLSF::AddDetailedStatistics(DetailedStatistics& inoutStats) const
+{
+    inoutStats.Stats.BlockCount++;
+    inoutStats.Stats.BlockBytes += GetSize();
+
+    for (Block* block = m_NullBlock->prevPhysical; block != NULL; block = block->prevPhysical)
+    {
+        if (block->IsFree())
+            AddDetailedStatisticsUnusedRange(inoutStats, block->size);
+        else
+            AddDetailedStatisticsAllocation(inoutStats, block->size);
+    }
+
+    if (m_NullBlock->size > 0)
+        AddDetailedStatisticsUnusedRange(inoutStats, m_NullBlock->size);
+}
+
+void BlockMetadata_TLSF::WriteAllocationInfoToJson(JsonWriter& json) const
+{
+    size_t blockCount = m_AllocCount + m_BlocksFreeCount;
+    Vector<Block*> blockList(blockCount, *GetAllocs());
+
+    size_t i = blockCount;
+    if (m_NullBlock->size > 0)
+    {
+        ++blockCount;
+        blockList.push_back(m_NullBlock);
+    }
+    for (Block* block = m_NullBlock->prevPhysical; block != NULL; block = block->prevPhysical)
+    {
+        blockList[--i] = block;
+    }
+    D3D12MA_ASSERT(i == 0);
+
+    PrintDetailedMap_Begin(json, GetSumFreeSize(), GetAllocationCount(), m_BlocksFreeCount + static_cast<bool>(m_NullBlock->size));
+    for (; i < blockCount; ++i)
+    {
+        Block* block = blockList[i];
+        if (block->IsFree())
+            PrintDetailedMap_UnusedRange(json, block->offset, block->size);
+        else
+            PrintDetailedMap_Allocation(json, block->offset, block->size, block->PrivateData());
+    }
+    PrintDetailedMap_End(json);
+}
+
+void BlockMetadata_TLSF::DebugLogAllAllocations() const
+{
+    for (Block* block = m_NullBlock->prevPhysical; block != NULL; block = block->prevPhysical)
+    {
+        if (!block->IsFree())
+        {
+            DebugLogAllocation(block->offset, block->size, block->PrivateData());
+        }
+    }
+}
+
+UINT8 BlockMetadata_TLSF::SizeToMemoryClass(UINT64 size) const
+{
+    if (size > SMALL_BUFFER_SIZE)
+        return BitScanMSB(size) - MEMORY_CLASS_SHIFT;
+    return 0;
+}
+
+UINT16 BlockMetadata_TLSF::SizeToSecondIndex(UINT64 size, UINT8 memoryClass) const
+{
+    if (memoryClass == 0)
+    {
+        if (IsVirtual())
+            return static_cast<UINT16>((size - 1) / 8);
+        else
+            return static_cast<UINT16>((size - 1) / 64);
+    }
+    return static_cast<UINT16>((size >> (memoryClass + MEMORY_CLASS_SHIFT - SECOND_LEVEL_INDEX)) ^ (1U << SECOND_LEVEL_INDEX));
+}
+
+UINT32 BlockMetadata_TLSF::GetListIndex(UINT8 memoryClass, UINT16 secondIndex) const
+{
+    if (memoryClass == 0)
+        return secondIndex;
+
+    const UINT32 index = static_cast<UINT32>(memoryClass - 1) * (1 << SECOND_LEVEL_INDEX) + secondIndex;
+    if (IsVirtual())
+        return index + (1 << SECOND_LEVEL_INDEX);
+    else
+        return index + 4;
+}
+
+UINT32 BlockMetadata_TLSF::GetListIndex(UINT64 size) const
+{
+    UINT8 memoryClass = SizeToMemoryClass(size);
+    return GetListIndex(memoryClass, SizeToSecondIndex(size, memoryClass));
+}
+
+void BlockMetadata_TLSF::RemoveFreeBlock(Block* block)
+{
+    D3D12MA_ASSERT(block != m_NullBlock);
+    D3D12MA_ASSERT(block->IsFree());
+
+    if (block->NextFree() != NULL)
+        block->NextFree()->PrevFree() = block->PrevFree();
+    if (block->PrevFree() != NULL)
+        block->PrevFree()->NextFree() = block->NextFree();
+    else
+    {
+        UINT8 memClass = SizeToMemoryClass(block->size);
+        UINT16 secondIndex = SizeToSecondIndex(block->size, memClass);
+        UINT32 index = GetListIndex(memClass, secondIndex);
+        m_FreeList[index] = block->NextFree();
+        if (block->NextFree() == NULL)
+        {
+            m_InnerIsFreeBitmap[memClass] &= ~(1U << secondIndex);
+            if (m_InnerIsFreeBitmap[memClass] == 0)
+                m_IsFreeBitmap &= ~(1UL << memClass);
+        }
+    }
+    block->MarkTaken();
+    block->PrivateData() = NULL;
+    --m_BlocksFreeCount;
+    m_BlocksFreeSize -= block->size;
+}
+
+void BlockMetadata_TLSF::InsertFreeBlock(Block* block)
+{
+    D3D12MA_ASSERT(block != m_NullBlock);
+    D3D12MA_ASSERT(!block->IsFree() && "Cannot insert block twice!");
+
+    UINT8 memClass = SizeToMemoryClass(block->size);
+    UINT16 secondIndex = SizeToSecondIndex(block->size, memClass);
+    UINT32 index = GetListIndex(memClass, secondIndex);
+    block->PrevFree() = NULL;
+    block->NextFree() = m_FreeList[index];
+    m_FreeList[index] = block;
+    if (block->NextFree() != NULL)
+        block->NextFree()->PrevFree() = block;
+    else
+    {
+        m_InnerIsFreeBitmap[memClass] |= 1U << secondIndex;
+        m_IsFreeBitmap |= 1UL << memClass;
+    }
+    ++m_BlocksFreeCount;
+    m_BlocksFreeSize += block->size;
+}
+
+void BlockMetadata_TLSF::MergeBlock(Block* block, Block* prev)
+{
+    D3D12MA_ASSERT(block->prevPhysical == prev && "Cannot merge seperate physical regions!");
+    D3D12MA_ASSERT(!prev->IsFree() && "Cannot merge block that belongs to free list!");
+
+    block->offset = prev->offset;
+    block->size += prev->size;
+    block->prevPhysical = prev->prevPhysical;
+    if (block->prevPhysical)
+        block->prevPhysical->nextPhysical = block;
+    m_BlockAllocator.Free(prev);
+}
+
+BlockMetadata_TLSF::Block* BlockMetadata_TLSF::FindFreeBlock(UINT64 size, UINT32& listIndex) const
+{
+    UINT8 memoryClass = SizeToMemoryClass(size);
+    UINT32 innerFreeMap = m_InnerIsFreeBitmap[memoryClass] & (~0U << SizeToSecondIndex(size, memoryClass));
+    if (!innerFreeMap)
+    {
+        // Check higher levels for avaiable blocks
+        UINT32 freeMap = m_IsFreeBitmap & (~0UL << (memoryClass + 1));
+        if (!freeMap)
+            return NULL; // No more memory avaible
+
+        // Find lowest free region
+        memoryClass = BitScanLSB(freeMap);
+        innerFreeMap = m_InnerIsFreeBitmap[memoryClass];
+        D3D12MA_ASSERT(innerFreeMap != 0);
+    }
+    // Find lowest free subregion
+    listIndex = GetListIndex(memoryClass, BitScanLSB(innerFreeMap));
+    return m_FreeList[listIndex];
+}
+
+bool BlockMetadata_TLSF::CheckBlock(
+    Block& block,
+    UINT32 listIndex,
+    UINT64 allocSize,
+    UINT64 allocAlignment,
+    AllocationRequest* pAllocationRequest)
+{
+    D3D12MA_ASSERT(block.IsFree() && "Block is already taken!");
+
+    UINT64 alignedOffset = AlignUp(block.offset, allocAlignment);
+    if (block.size < allocSize + alignedOffset - block.offset)
+        return false;
+
+    // Alloc successful
+    pAllocationRequest->allocHandle = (AllocHandle)&block;
+    pAllocationRequest->size = allocSize - GetDebugMargin();
+    pAllocationRequest->algorithmData = alignedOffset;
+
+    // Place block at the start of list if it's normal block
+    if (listIndex != m_ListsCount && block.PrevFree())
+    {
+        block.PrevFree()->NextFree() = block.NextFree();
+        if (block.NextFree())
+            block.NextFree()->PrevFree() = block.PrevFree();
+        block.PrevFree() = NULL;
+        block.NextFree() = m_FreeList[listIndex];
+        m_FreeList[listIndex] = &block;
+        if (block.NextFree())
+            block.NextFree()->PrevFree() = &block;
+    }
+
+    return true;
+}
+#endif // _D3D12MA_BLOCK_METADATA_TLSF_FUNCTIONS
+#endif // _D3D12MA_BLOCK_METADATA_TLSF
+
+#ifndef _D3D12MA_MEMORY_BLOCK
+/*
+Represents a single block of device memory (heap).
+Base class for inheritance.
+Thread-safety: This class must be externally synchronized.
+*/
+class MemoryBlock
+{
+public:
+    // Creates the ID3D12Heap.
+    MemoryBlock(
+        AllocatorPimpl* allocator,
+        const D3D12_HEAP_PROPERTIES& heapProps,
+        D3D12_HEAP_FLAGS heapFlags,
+        UINT64 size,
+        UINT id);
+    virtual ~MemoryBlock();
+
+    const D3D12_HEAP_PROPERTIES& GetHeapProperties() const { return m_HeapProps; }
+    D3D12_HEAP_FLAGS GetHeapFlags() const { return m_HeapFlags; }
+    UINT64 GetSize() const { return m_Size; }
+    UINT GetId() const { return m_Id; }
+    ID3D12Heap* GetHeap() const { return m_Heap; }
+
+protected:
+    AllocatorPimpl* const m_Allocator;
+    const D3D12_HEAP_PROPERTIES m_HeapProps;
+    const D3D12_HEAP_FLAGS m_HeapFlags;
+    const UINT64 m_Size;
+    const UINT m_Id;
+
+    HRESULT Init(ID3D12ProtectedResourceSession* pProtectedSession, bool denyMsaaTextures);
+
+private:
+    ID3D12Heap* m_Heap = NULL;
+
+    D3D12MA_CLASS_NO_COPY(MemoryBlock)
+};
+#endif // _D3D12MA_MEMORY_BLOCK
+
+#ifndef _D3D12MA_NORMAL_BLOCK
+/*
+Represents a single block of device memory (heap) with all the data about its
+regions (aka suballocations, Allocation), assigned and free.
+Thread-safety: This class must be externally synchronized.
+*/
+class NormalBlock : public MemoryBlock
+{
+public:
+    BlockMetadata* m_pMetadata;
+
+    NormalBlock(
+        AllocatorPimpl* allocator,
+        BlockVector* blockVector,
+        const D3D12_HEAP_PROPERTIES& heapProps,
+        D3D12_HEAP_FLAGS heapFlags,
+        UINT64 size,
+        UINT id);
+    virtual ~NormalBlock();
+
+    BlockVector* GetBlockVector() const { return m_BlockVector; }
+
+    // 'algorithm' should be one of the *_ALGORITHM_* flags in enums POOL_FLAGS or VIRTUAL_BLOCK_FLAGS
+    HRESULT Init(UINT32 algorithm, ID3D12ProtectedResourceSession* pProtectedSession, bool denyMsaaTextures);
+
+    // Validates all data structures inside this object. If not valid, returns false.
+    bool Validate() const;
+
+private:
+    BlockVector* m_BlockVector;
+
+    D3D12MA_CLASS_NO_COPY(NormalBlock)
+};
+#endif // _D3D12MA_NORMAL_BLOCK
+
+#ifndef _D3D12MA_COMMITTED_ALLOCATION_LIST_ITEM_TRAITS
+struct CommittedAllocationListItemTraits
+{
+    using ItemType = Allocation;
+
+    static ItemType* GetPrev(const ItemType* item)
+    {
+        D3D12MA_ASSERT(item->m_PackedData.GetType() == Allocation::TYPE_COMMITTED || item->m_PackedData.GetType() == Allocation::TYPE_HEAP);
+        return item->m_Committed.prev;
+    }
+    static ItemType* GetNext(const ItemType* item)
+    {
+        D3D12MA_ASSERT(item->m_PackedData.GetType() == Allocation::TYPE_COMMITTED || item->m_PackedData.GetType() == Allocation::TYPE_HEAP);
+        return item->m_Committed.next;
+    }
+    static ItemType*& AccessPrev(ItemType* item)
+    {
+        D3D12MA_ASSERT(item->m_PackedData.GetType() == Allocation::TYPE_COMMITTED || item->m_PackedData.GetType() == Allocation::TYPE_HEAP);
+        return item->m_Committed.prev;
+    }
+    static ItemType*& AccessNext(ItemType* item)
+    {
+        D3D12MA_ASSERT(item->m_PackedData.GetType() == Allocation::TYPE_COMMITTED || item->m_PackedData.GetType() == Allocation::TYPE_HEAP);
+        return item->m_Committed.next;
+    }
+};
+#endif // _D3D12MA_COMMITTED_ALLOCATION_LIST_ITEM_TRAITS
+
+#ifndef _D3D12MA_COMMITTED_ALLOCATION_LIST
+/*
+Stores linked list of Allocation objects that are of TYPE_COMMITTED or TYPE_HEAP.
+Thread-safe, synchronized internally.
+*/
+class CommittedAllocationList
+{
+public:
+    CommittedAllocationList() = default;
+    void Init(bool useMutex, D3D12_HEAP_TYPE heapType, PoolPimpl* pool);
+    ~CommittedAllocationList();
+
+    D3D12_HEAP_TYPE GetHeapType() const { return m_HeapType; }
+    PoolPimpl* GetPool() const { return m_Pool; }
+    UINT GetMemorySegmentGroup(AllocatorPimpl* allocator) const;
+    
+    void AddStatistics(Statistics& inoutStats);
+    void AddDetailedStatistics(DetailedStatistics& inoutStats);
+    // Writes JSON array with the list of allocations.
+    void BuildStatsString(JsonWriter& json);
+
+    void Register(Allocation* alloc);
+    void Unregister(Allocation* alloc);
+
+private:
+    using CommittedAllocationLinkedList = IntrusiveLinkedList<CommittedAllocationListItemTraits>;
+
+    bool m_UseMutex = true;
+    D3D12_HEAP_TYPE m_HeapType = D3D12_HEAP_TYPE_CUSTOM;
+    PoolPimpl* m_Pool = NULL;
+
+    D3D12MA_RW_MUTEX m_Mutex;
+    CommittedAllocationLinkedList m_AllocationList;
+};
+#endif // _D3D12MA_COMMITTED_ALLOCATION_LIST
+
+#ifndef _D3D12M_COMMITTED_ALLOCATION_PARAMETERS
+struct CommittedAllocationParameters
+{
+    CommittedAllocationList* m_List = NULL;
+    D3D12_HEAP_PROPERTIES m_HeapProperties = {};
+    D3D12_HEAP_FLAGS m_HeapFlags = D3D12_HEAP_FLAG_NONE;
+    ID3D12ProtectedResourceSession* m_ProtectedSession = NULL;
+    bool m_CanAlias = false;
+    D3D12_RESIDENCY_PRIORITY m_ResidencyPriority = D3D12_RESIDENCY_PRIORITY_NONE;
+
+    bool IsValid() const { return m_List != NULL; }
+};
+#endif // _D3D12M_COMMITTED_ALLOCATION_PARAMETERS
+
+// Simple variant data structure to hold all possible variations of ID3D12Device*::CreateCommittedResource* and ID3D12Device*::CreatePlacedResource* arguments
+struct CREATE_RESOURCE_PARAMS
+{
+    CREATE_RESOURCE_PARAMS() = delete;
+    CREATE_RESOURCE_PARAMS(
+        const D3D12_RESOURCE_DESC* pResourceDesc, 
+        D3D12_RESOURCE_STATES InitialResourceState, 
+        const D3D12_CLEAR_VALUE* pOptimizedClearValue)
+        : Variant(VARIANT_WITH_STATE)
+        , pResourceDesc(pResourceDesc)
+        , InitialResourceState(InitialResourceState)
+        , pOptimizedClearValue(pOptimizedClearValue)
+    {
+    }
+#ifdef __ID3D12Device8_INTERFACE_DEFINED__
+    CREATE_RESOURCE_PARAMS(
+        const D3D12_RESOURCE_DESC1* pResourceDesc, 
+        D3D12_RESOURCE_STATES InitialResourceState, 
+        const D3D12_CLEAR_VALUE* pOptimizedClearValue)
+        : Variant(VARIANT_WITH_STATE_AND_DESC1)
+        , pResourceDesc1(pResourceDesc)
+        , InitialResourceState(InitialResourceState)
+        , pOptimizedClearValue(pOptimizedClearValue)
+    {
+    }
+#endif
+#ifdef __ID3D12Device10_INTERFACE_DEFINED__
+    CREATE_RESOURCE_PARAMS(
+        const D3D12_RESOURCE_DESC1* pResourceDesc,
+        D3D12_BARRIER_LAYOUT InitialLayout,
+        const D3D12_CLEAR_VALUE* pOptimizedClearValue,
+        UINT32 NumCastableFormats,
+        DXGI_FORMAT* pCastableFormats)
+        : Variant(VARIANT_WITH_LAYOUT)
+        , pResourceDesc1(pResourceDesc)
+        , InitialLayout(InitialLayout)
+        , pOptimizedClearValue(pOptimizedClearValue)
+        , NumCastableFormats(NumCastableFormats)
+        , pCastableFormats(pCastableFormats)
+    {
+    }
+#endif
+
+    enum VARIANT
+    {
+        VARIANT_INVALID = 0,
+        VARIANT_WITH_STATE,
+        VARIANT_WITH_STATE_AND_DESC1,
+        VARIANT_WITH_LAYOUT
+    };
+
+    VARIANT Variant = VARIANT_INVALID;
+
+    const D3D12_RESOURCE_DESC* GetResourceDesc() const
+    {
+        D3D12MA_ASSERT(Variant == VARIANT_WITH_STATE);
+        return pResourceDesc;
+    }
+    const D3D12_RESOURCE_DESC*& AccessResourceDesc()
+    {
+        D3D12MA_ASSERT(Variant == VARIANT_WITH_STATE);
+        return pResourceDesc;
+    }
+    const D3D12_RESOURCE_DESC* GetBaseResourceDesc() const
+    {
+        // D3D12_RESOURCE_DESC1 can be cast to D3D12_RESOURCE_DESC by discarding the new members at the end.
+        return pResourceDesc;
+    }
+    D3D12_RESOURCE_STATES GetInitialResourceState() const
+    {
+        D3D12MA_ASSERT(Variant < VARIANT_WITH_LAYOUT);
+        return InitialResourceState;
+    }
+    const D3D12_CLEAR_VALUE* GetOptimizedClearValue() const
+    {
+        return pOptimizedClearValue;
+    }
+
+#ifdef __ID3D12Device8_INTERFACE_DEFINED__
+    const D3D12_RESOURCE_DESC1* GetResourceDesc1() const
+    {
+        D3D12MA_ASSERT(Variant >= VARIANT_WITH_STATE_AND_DESC1);
+        return pResourceDesc1;
+    }
+    const D3D12_RESOURCE_DESC1*& AccessResourceDesc1()
+    {
+        D3D12MA_ASSERT(Variant >= VARIANT_WITH_STATE_AND_DESC1);
+        return pResourceDesc1;
+    }
+#endif
+
+#ifdef __ID3D12Device10_INTERFACE_DEFINED__
+    D3D12_BARRIER_LAYOUT GetInitialLayout() const
+    {
+        D3D12MA_ASSERT(Variant >= VARIANT_WITH_LAYOUT);
+        return InitialLayout;
+    }
+    UINT32 GetNumCastableFormats() const
+    {
+        D3D12MA_ASSERT(Variant >= VARIANT_WITH_LAYOUT);
+        return NumCastableFormats;
+    }
+    DXGI_FORMAT* GetCastableFormats() const
+    {
+        D3D12MA_ASSERT(Variant >= VARIANT_WITH_LAYOUT);
+        return pCastableFormats;
+    }
+#endif
+
+private:
+    union
+    {
+        const D3D12_RESOURCE_DESC* pResourceDesc;
+#ifdef __ID3D12Device8_INTERFACE_DEFINED__
+        const D3D12_RESOURCE_DESC1* pResourceDesc1;
+#endif
+    };
+    union
+    {
+        D3D12_RESOURCE_STATES InitialResourceState;
+#ifdef __ID3D12Device10_INTERFACE_DEFINED__
+        D3D12_BARRIER_LAYOUT InitialLayout;
+#endif
+    };
+    const D3D12_CLEAR_VALUE* pOptimizedClearValue;
+#ifdef __ID3D12Device10_INTERFACE_DEFINED__
+    UINT32 NumCastableFormats;
+    DXGI_FORMAT* pCastableFormats;
+#endif
+};
+
+#ifndef _D3D12MA_BLOCK_VECTOR
+/*
+Sequence of NormalBlock. Represents memory blocks allocated for a specific
+heap type and possibly resource type (if only Tier 1 is supported).
+
+Synchronized internally with a mutex.
+*/
+class BlockVector
+{
+    friend class DefragmentationContextPimpl;
+    D3D12MA_CLASS_NO_COPY(BlockVector)
+public:
+    BlockVector(
+        AllocatorPimpl* hAllocator,
+        const D3D12_HEAP_PROPERTIES& heapProps,
+        D3D12_HEAP_FLAGS heapFlags,
+        UINT64 preferredBlockSize,
+        size_t minBlockCount,
+        size_t maxBlockCount,
+        bool explicitBlockSize,
+        UINT64 minAllocationAlignment,
+        UINT32 algorithm,
+        bool denyMsaaTextures,
+        ID3D12ProtectedResourceSession* pProtectedSession,
+        D3D12_RESIDENCY_PRIORITY residencyPriority);
+    ~BlockVector();
+    D3D12_RESIDENCY_PRIORITY GetResidencyPriority() const { return m_ResidencyPriority; }
+
+    const D3D12_HEAP_PROPERTIES& GetHeapProperties() const { return m_HeapProps; }
+    D3D12_HEAP_FLAGS GetHeapFlags() const { return m_HeapFlags; }
+    UINT64 GetPreferredBlockSize() const { return m_PreferredBlockSize; }
+    UINT32 GetAlgorithm() const { return m_Algorithm; }
+    bool DeniesMsaaTextures() const { return m_DenyMsaaTextures; }
+    // To be used only while the m_Mutex is locked. Used during defragmentation.
+    size_t GetBlockCount() const { return m_Blocks.size(); }
+    // To be used only while the m_Mutex is locked. Used during defragmentation.
+    NormalBlock* GetBlock(size_t index) const { return m_Blocks[index]; }
+    D3D12MA_RW_MUTEX& GetMutex() { return m_Mutex; }
+
+    HRESULT CreateMinBlocks();
+    bool IsEmpty();
+
+    HRESULT Allocate(
+        UINT64 size,
+        UINT64 alignment,
+        const ALLOCATION_DESC& allocDesc,
+        size_t allocationCount,
+        Allocation** pAllocations);
+
+    void Free(Allocation* hAllocation);
+
+    HRESULT CreateResource(
+        UINT64 size,
+        UINT64 alignment,
+        const ALLOCATION_DESC& allocDesc,
+        const CREATE_RESOURCE_PARAMS& createParams,
+        Allocation** ppAllocation,
+        REFIID riidResource,
+        void** ppvResource);
+
+    void AddStatistics(Statistics& inoutStats);
+    void AddDetailedStatistics(DetailedStatistics& inoutStats);
+
+    void WriteBlockInfoToJson(JsonWriter& json);
+
+private:
+    AllocatorPimpl* const m_hAllocator;
+    const D3D12_HEAP_PROPERTIES m_HeapProps;
+    const D3D12_HEAP_FLAGS m_HeapFlags;
+    const UINT64 m_PreferredBlockSize;
+    const size_t m_MinBlockCount;
+    const size_t m_MaxBlockCount;
+    const bool m_ExplicitBlockSize;
+    const UINT64 m_MinAllocationAlignment;
+    const UINT32 m_Algorithm;
+    const bool m_DenyMsaaTextures;
+    ID3D12ProtectedResourceSession* const m_ProtectedSession;
+    const D3D12_RESIDENCY_PRIORITY m_ResidencyPriority;
+    /* There can be at most one allocation that is completely empty - a
+    hysteresis to avoid pessimistic case of alternating creation and destruction
+    of a ID3D12Heap. */
+    bool m_HasEmptyBlock;
+    D3D12MA_RW_MUTEX m_Mutex;
+    // Incrementally sorted by sumFreeSize, ascending.
+    Vector<NormalBlock*> m_Blocks;
+    UINT m_NextBlockId;
+    bool m_IncrementalSort = true;
+
+    // Disable incremental sorting when freeing allocations
+    void SetIncrementalSort(bool val) { m_IncrementalSort = val; }
+
+    UINT64 CalcSumBlockSize() const;
+    UINT64 CalcMaxBlockSize() const;
+
+    // Finds and removes given block from vector.
+    void Remove(NormalBlock* pBlock);
+
+    // Performs single step in sorting m_Blocks. They may not be fully sorted
+    // after this call.
+    void IncrementallySortBlocks();
+    void SortByFreeSize();
+
+    HRESULT AllocatePage(
+        UINT64 size,
+        UINT64 alignment,
+        const ALLOCATION_DESC& allocDesc,
+        Allocation** pAllocation);
+
+    HRESULT AllocateFromBlock(
+        NormalBlock* pBlock,
+        UINT64 size,
+        UINT64 alignment,
+        ALLOCATION_FLAGS allocFlags,
+        void* pPrivateData,
+        UINT32 strategy,
+        Allocation** pAllocation);
+
+    HRESULT CommitAllocationRequest(
+        AllocationRequest& allocRequest,
+        NormalBlock* pBlock,
+        UINT64 size,
+        UINT64 alignment,
+        void* pPrivateData,
+        Allocation** pAllocation);
+
+    HRESULT CreateBlock(
+        UINT64 blockSize,
+        size_t* pNewBlockIndex);
+};
+#endif // _D3D12MA_BLOCK_VECTOR
+
+#ifndef _D3D12MA_CURRENT_BUDGET_DATA
+class CurrentBudgetData
+{
+public:
+    bool ShouldUpdateBudget() const { return m_OperationsSinceBudgetFetch >= 30; }
+
+    void GetStatistics(Statistics& outStats, UINT group) const;
+    void GetBudget(bool useMutex,
+        UINT64* outLocalUsage, UINT64* outLocalBudget,
+        UINT64* outNonLocalUsage, UINT64* outNonLocalBudget);
+
+#if D3D12MA_DXGI_1_4
+    HRESULT UpdateBudget(IDXGIAdapter3* adapter3, bool useMutex);
+#endif
+
+    void AddAllocation(UINT group, UINT64 allocationBytes);
+    void RemoveAllocation(UINT group, UINT64 allocationBytes);
+
+    void AddBlock(UINT group, UINT64 blockBytes);
+    void RemoveBlock(UINT group, UINT64 blockBytes);
+
+private:
+    D3D12MA_ATOMIC_UINT32 m_BlockCount[DXGI_MEMORY_SEGMENT_GROUP_COUNT] = {};
+    D3D12MA_ATOMIC_UINT32 m_AllocationCount[DXGI_MEMORY_SEGMENT_GROUP_COUNT] = {};
+    D3D12MA_ATOMIC_UINT64 m_BlockBytes[DXGI_MEMORY_SEGMENT_GROUP_COUNT] = {};
+    D3D12MA_ATOMIC_UINT64 m_AllocationBytes[DXGI_MEMORY_SEGMENT_GROUP_COUNT] = {};
+
+    D3D12MA_ATOMIC_UINT32 m_OperationsSinceBudgetFetch = {0};
+    D3D12MA_RW_MUTEX m_BudgetMutex;
+    UINT64 m_D3D12Usage[DXGI_MEMORY_SEGMENT_GROUP_COUNT] = {};
+    UINT64 m_D3D12Budget[DXGI_MEMORY_SEGMENT_GROUP_COUNT] = {};
+    UINT64 m_BlockBytesAtD3D12Fetch[DXGI_MEMORY_SEGMENT_GROUP_COUNT] = {};
+};
+
+#ifndef _D3D12MA_CURRENT_BUDGET_DATA_FUNCTIONS
+void CurrentBudgetData::GetStatistics(Statistics& outStats, UINT group) const
+{
+    outStats.BlockCount = m_BlockCount[group];
+    outStats.AllocationCount = m_AllocationCount[group];
+    outStats.BlockBytes = m_BlockBytes[group];
+    outStats.AllocationBytes = m_AllocationBytes[group];
+}
+
+void CurrentBudgetData::GetBudget(bool useMutex,
+    UINT64* outLocalUsage, UINT64* outLocalBudget,
+    UINT64* outNonLocalUsage, UINT64* outNonLocalBudget)
+{
+    MutexLockRead lockRead(m_BudgetMutex, useMutex);
+
+    if (outLocalUsage)
+    {
+        const UINT64 D3D12Usage = m_D3D12Usage[DXGI_MEMORY_SEGMENT_GROUP_LOCAL_COPY];
+        const UINT64 blockBytes = m_BlockBytes[DXGI_MEMORY_SEGMENT_GROUP_LOCAL_COPY];
+        const UINT64 blockBytesAtD3D12Fetch = m_BlockBytesAtD3D12Fetch[DXGI_MEMORY_SEGMENT_GROUP_LOCAL_COPY];
+        *outLocalUsage = D3D12Usage + blockBytes > blockBytesAtD3D12Fetch ?
+            D3D12Usage + blockBytes - blockBytesAtD3D12Fetch : 0;
+    }
+    if (outLocalBudget)
+        *outLocalBudget = m_D3D12Budget[DXGI_MEMORY_SEGMENT_GROUP_LOCAL_COPY];
+
+    if (outNonLocalUsage)
+    {
+        const UINT64 D3D12Usage = m_D3D12Usage[DXGI_MEMORY_SEGMENT_GROUP_NON_LOCAL_COPY];
+        const UINT64 blockBytes = m_BlockBytes[DXGI_MEMORY_SEGMENT_GROUP_NON_LOCAL_COPY];
+        const UINT64 blockBytesAtD3D12Fetch = m_BlockBytesAtD3D12Fetch[DXGI_MEMORY_SEGMENT_GROUP_NON_LOCAL_COPY];
+        *outNonLocalUsage = D3D12Usage + blockBytes > blockBytesAtD3D12Fetch ?
+            D3D12Usage + blockBytes - blockBytesAtD3D12Fetch : 0;
+    }
+    if (outNonLocalBudget)
+        *outNonLocalBudget = m_D3D12Budget[DXGI_MEMORY_SEGMENT_GROUP_NON_LOCAL_COPY];
+}
+
+#if D3D12MA_DXGI_1_4
+HRESULT CurrentBudgetData::UpdateBudget(IDXGIAdapter3* adapter3, bool useMutex)
+{
+    D3D12MA_ASSERT(adapter3);
+
+    DXGI_QUERY_VIDEO_MEMORY_INFO infoLocal = {};
+    DXGI_QUERY_VIDEO_MEMORY_INFO infoNonLocal = {};
+    const HRESULT hrLocal = adapter3->QueryVideoMemoryInfo(0, DXGI_MEMORY_SEGMENT_GROUP_LOCAL, &infoLocal);
+    const HRESULT hrNonLocal = adapter3->QueryVideoMemoryInfo(0, DXGI_MEMORY_SEGMENT_GROUP_NON_LOCAL, &infoNonLocal);
+
+    if (SUCCEEDED(hrLocal) || SUCCEEDED(hrNonLocal))
+    {
+        MutexLockWrite lockWrite(m_BudgetMutex, useMutex);
+
+        if (SUCCEEDED(hrLocal))
+        {
+            m_D3D12Usage[0] = infoLocal.CurrentUsage;
+            m_D3D12Budget[0] = infoLocal.Budget;
+        }
+        if (SUCCEEDED(hrNonLocal))
+        {
+            m_D3D12Usage[1] = infoNonLocal.CurrentUsage;
+            m_D3D12Budget[1] = infoNonLocal.Budget;
+        }
+
+        m_BlockBytesAtD3D12Fetch[0] = m_BlockBytes[0];
+        m_BlockBytesAtD3D12Fetch[1] = m_BlockBytes[1];
+        m_OperationsSinceBudgetFetch = 0;
+    }
+
+    return FAILED(hrLocal) ? hrLocal : hrNonLocal;
+}
+#endif // #if D3D12MA_DXGI_1_4
+
+void CurrentBudgetData::AddAllocation(UINT group, UINT64 allocationBytes)
+{
+    ++m_AllocationCount[group];
+    m_AllocationBytes[group] += allocationBytes;
+    ++m_OperationsSinceBudgetFetch;
+}
+
+void CurrentBudgetData::RemoveAllocation(UINT group, UINT64 allocationBytes)
+{
+    D3D12MA_ASSERT(m_AllocationBytes[group] >= allocationBytes);
+    D3D12MA_ASSERT(m_AllocationCount[group] > 0);
+    m_AllocationBytes[group] -= allocationBytes;
+    --m_AllocationCount[group];
+    ++m_OperationsSinceBudgetFetch;
+}
+
+void CurrentBudgetData::AddBlock(UINT group, UINT64 blockBytes)
+{
+    ++m_BlockCount[group];
+    m_BlockBytes[group] += blockBytes;
+    ++m_OperationsSinceBudgetFetch;
+}
+
+void CurrentBudgetData::RemoveBlock(UINT group, UINT64 blockBytes)
+{
+    D3D12MA_ASSERT(m_BlockBytes[group] >= blockBytes);
+    D3D12MA_ASSERT(m_BlockCount[group] > 0);
+    m_BlockBytes[group] -= blockBytes;
+    --m_BlockCount[group];
+    ++m_OperationsSinceBudgetFetch;
+}
+#endif // _D3D12MA_CURRENT_BUDGET_DATA_FUNCTIONS
+#endif // _D3D12MA_CURRENT_BUDGET_DATA
+
+#ifndef _D3D12MA_DEFRAGMENTATION_CONTEXT_PIMPL
+class DefragmentationContextPimpl
+{
+    D3D12MA_CLASS_NO_COPY(DefragmentationContextPimpl)
+public:
+    DefragmentationContextPimpl(
+        AllocatorPimpl* hAllocator,
+        const DEFRAGMENTATION_DESC& desc,
+        BlockVector* poolVector);
+    ~DefragmentationContextPimpl();
+
+    void GetStats(DEFRAGMENTATION_STATS& outStats) { outStats = m_GlobalStats; }
+    const ALLOCATION_CALLBACKS& GetAllocs() const { return m_Moves.GetAllocs(); }
+
+    HRESULT DefragmentPassBegin(DEFRAGMENTATION_PASS_MOVE_INFO& moveInfo);
+    HRESULT DefragmentPassEnd(DEFRAGMENTATION_PASS_MOVE_INFO& moveInfo);
+
+private:
+    // Max number of allocations to ignore due to size constraints before ending single pass
+    static const UINT8 MAX_ALLOCS_TO_IGNORE = 16;
+    enum class CounterStatus { Pass, Ignore, End };
+
+    struct FragmentedBlock
+    {
+        UINT32 data;
+        NormalBlock* block;
+    };
+    struct StateBalanced
+    {
+        UINT64 avgFreeSize = 0;
+        UINT64 avgAllocSize = UINT64_MAX;
+    };
+    struct MoveAllocationData
+    {
+        UINT64 size;
+        UINT64 alignment;
+        ALLOCATION_FLAGS flags;
+        DEFRAGMENTATION_MOVE move = {};
+    };
+
+    const UINT64 m_MaxPassBytes;
+    const UINT32 m_MaxPassAllocations;
+
+    Vector<DEFRAGMENTATION_MOVE> m_Moves;
+
+    UINT8 m_IgnoredAllocs = 0;
+    UINT32 m_Algorithm;
+    UINT32 m_BlockVectorCount;
+    BlockVector* m_PoolBlockVector;
+    BlockVector** m_pBlockVectors;
+    size_t m_ImmovableBlockCount = 0;
+    DEFRAGMENTATION_STATS m_GlobalStats = { 0 };
+    DEFRAGMENTATION_STATS m_PassStats = { 0 };
+    void* m_AlgorithmState = NULL;
+
+    static MoveAllocationData GetMoveData(AllocHandle handle, BlockMetadata* metadata);
+    CounterStatus CheckCounters(UINT64 bytes);
+    bool IncrementCounters(UINT64 bytes);
+    bool ReallocWithinBlock(BlockVector& vector, NormalBlock* block);
+    bool AllocInOtherBlock(size_t start, size_t end, MoveAllocationData& data, BlockVector& vector);
+
+    bool ComputeDefragmentation(BlockVector& vector, size_t index);
+    bool ComputeDefragmentation_Fast(BlockVector& vector);
+    bool ComputeDefragmentation_Balanced(BlockVector& vector, size_t index, bool update);
+    bool ComputeDefragmentation_Full(BlockVector& vector);
+
+    void UpdateVectorStatistics(BlockVector& vector, StateBalanced& state);
+};
+#endif // _D3D12MA_DEFRAGMENTATION_CONTEXT_PIMPL
+
+#ifndef _D3D12MA_POOL_PIMPL
+class PoolPimpl
+{
+    friend class Allocator;
+    friend struct PoolListItemTraits;
+public:
+    PoolPimpl(AllocatorPimpl* allocator, const POOL_DESC& desc);
+    ~PoolPimpl();
+
+    AllocatorPimpl* GetAllocator() const { return m_Allocator; }
+    const POOL_DESC& GetDesc() const { return m_Desc; }
+    bool SupportsCommittedAllocations() const { return m_Desc.BlockSize == 0; }
+    LPCWSTR GetName() const { return m_Name; }
+
+    BlockVector* GetBlockVector() { return m_BlockVector; }
+    CommittedAllocationList* GetCommittedAllocationList() { return SupportsCommittedAllocations() ? &m_CommittedAllocations : NULL; }
+
+    HRESULT Init();
+    void GetStatistics(Statistics& outStats);
+    void CalculateStatistics(DetailedStatistics& outStats);
+    void AddDetailedStatistics(DetailedStatistics& inoutStats);
+    void SetName(LPCWSTR Name);
+
+private:
+    AllocatorPimpl* m_Allocator; // Externally owned object.
+    POOL_DESC m_Desc;
+    BlockVector* m_BlockVector; // Owned object.
+    CommittedAllocationList m_CommittedAllocations;
+    wchar_t* m_Name;
+    PoolPimpl* m_PrevPool = NULL;
+    PoolPimpl* m_NextPool = NULL;
+
+    void FreeName();
+};
+
+struct PoolListItemTraits
+{
+    using ItemType = PoolPimpl;
+    static ItemType* GetPrev(const ItemType* item) { return item->m_PrevPool; }
+    static ItemType* GetNext(const ItemType* item) { return item->m_NextPool; }
+    static ItemType*& AccessPrev(ItemType* item) { return item->m_PrevPool; }
+    static ItemType*& AccessNext(ItemType* item) { return item->m_NextPool; }
+};
+#endif // _D3D12MA_POOL_PIMPL
+
+
+#ifndef _D3D12MA_ALLOCATOR_PIMPL
+class AllocatorPimpl
+{
+    friend class Allocator;
+    friend class Pool;
+public:
+    std::atomic_uint32_t m_RefCount = {1};
+    CurrentBudgetData m_Budget;
+
+    AllocatorPimpl(const ALLOCATION_CALLBACKS& allocationCallbacks, const ALLOCATOR_DESC& desc);
+    ~AllocatorPimpl();
+
+    ID3D12Device* GetDevice() const { return m_Device; }
+#ifdef __ID3D12Device1_INTERFACE_DEFINED__
+    ID3D12Device1* GetDevice1() const { return m_Device1; }
+#endif
+#ifdef __ID3D12Device4_INTERFACE_DEFINED__
+    ID3D12Device4* GetDevice4() const { return m_Device4; }
+#endif
+#ifdef __ID3D12Device8_INTERFACE_DEFINED__
+    ID3D12Device8* GetDevice8() const { return m_Device8; }
+#endif
+    // Shortcut for "Allocation Callbacks", because this function is called so often.
+    const ALLOCATION_CALLBACKS& GetAllocs() const { return m_AllocationCallbacks; }
+    const D3D12_FEATURE_DATA_D3D12_OPTIONS& GetD3D12Options() const { return m_D3D12Options; }
+    BOOL IsUMA() const { return m_D3D12Architecture.UMA; }
+    BOOL IsCacheCoherentUMA() const { return m_D3D12Architecture.CacheCoherentUMA; }
+    bool SupportsResourceHeapTier2() const { return m_D3D12Options.ResourceHeapTier >= D3D12_RESOURCE_HEAP_TIER_2; }
+    bool UseMutex() const { return m_UseMutex; }
+    AllocationObjectAllocator& GetAllocationObjectAllocator() { return m_AllocationObjectAllocator; }
+    UINT GetCurrentFrameIndex() const { return m_CurrentFrameIndex.load(); }
+    /*
+    If SupportsResourceHeapTier2():
+        0: D3D12_HEAP_TYPE_DEFAULT
+        1: D3D12_HEAP_TYPE_UPLOAD
+        2: D3D12_HEAP_TYPE_READBACK
+    else:
+        0: D3D12_HEAP_TYPE_DEFAULT + buffer
+        1: D3D12_HEAP_TYPE_DEFAULT + texture
+        2: D3D12_HEAP_TYPE_DEFAULT + texture RT or DS
+        3: D3D12_HEAP_TYPE_UPLOAD + buffer
+        4: D3D12_HEAP_TYPE_UPLOAD + texture
+        5: D3D12_HEAP_TYPE_UPLOAD + texture RT or DS
+        6: D3D12_HEAP_TYPE_READBACK + buffer
+        7: D3D12_HEAP_TYPE_READBACK + texture
+        8: D3D12_HEAP_TYPE_READBACK + texture RT or DS
+    */
+    UINT GetDefaultPoolCount() const { return SupportsResourceHeapTier2() ? 3 : 9; }
+    BlockVector** GetDefaultPools() { return m_BlockVectors; }
+
+    HRESULT Init(const ALLOCATOR_DESC& desc);
+    bool HeapFlagsFulfillResourceHeapTier(D3D12_HEAP_FLAGS flags) const;
+    UINT StandardHeapTypeToMemorySegmentGroup(D3D12_HEAP_TYPE heapType) const;
+    UINT HeapPropertiesToMemorySegmentGroup(const D3D12_HEAP_PROPERTIES& heapProps) const;
+    UINT64 GetMemoryCapacity(UINT memorySegmentGroup) const;
+
+    HRESULT CreatePlacedResourceWrap(
+        ID3D12Heap *pHeap,
+        UINT64 HeapOffset,
+        const CREATE_RESOURCE_PARAMS& createParams,
+        REFIID riidResource,
+        void** ppvResource);
+
+    HRESULT CreateResource(
+        const ALLOCATION_DESC* pAllocDesc,
+        const CREATE_RESOURCE_PARAMS& createParams,
+        Allocation** ppAllocation,
+        REFIID riidResource,
+        void** ppvResource);
+
+    HRESULT CreateAliasingResource(
+        Allocation* pAllocation,
+        UINT64 AllocationLocalOffset,
+        const CREATE_RESOURCE_PARAMS& createParams,
+        REFIID riidResource,
+        void** ppvResource);
+
+    HRESULT AllocateMemory(
+        const ALLOCATION_DESC* pAllocDesc,
+        const D3D12_RESOURCE_ALLOCATION_INFO* pAllocInfo,
+        Allocation** ppAllocation);
+
+    // Unregisters allocation from the collection of dedicated allocations.
+    // Allocation object must be deleted externally afterwards.
+    void FreeCommittedMemory(Allocation* allocation);
+    // Unregisters allocation from the collection of placed allocations.
+    // Allocation object must be deleted externally afterwards.
+    void FreePlacedMemory(Allocation* allocation);
+    // Unregisters allocation from the collection of dedicated allocations and destroys associated heap.
+    // Allocation object must be deleted externally afterwards.
+    void FreeHeapMemory(Allocation* allocation);
+
+    void SetResidencyPriority(ID3D12Pageable* obj, D3D12_RESIDENCY_PRIORITY priority) const;
+
+    void SetCurrentFrameIndex(UINT frameIndex);
+    // For more deailed stats use outCutomHeaps to access statistics divided into L0 and L1 group
+    void CalculateStatistics(TotalStatistics& outStats, DetailedStatistics outCutomHeaps[2] = NULL);
+
+    void GetBudget(Budget* outLocalBudget, Budget* outNonLocalBudget);
+    void GetBudgetForHeapType(Budget& outBudget, D3D12_HEAP_TYPE heapType);
+
+    void BuildStatsString(WCHAR** ppStatsString, BOOL detailedMap);
+    void FreeStatsString(WCHAR* pStatsString);
+
+private:
+    using PoolList = IntrusiveLinkedList<PoolListItemTraits>;
+
+    const bool m_UseMutex;
+    const bool m_AlwaysCommitted;
+    const bool m_MsaaAlwaysCommitted;
+    bool m_DefaultPoolsNotZeroed = false;
+    ID3D12Device* m_Device; // AddRef
+#ifdef __ID3D12Device1_INTERFACE_DEFINED__
+    ID3D12Device1* m_Device1 = NULL; // AddRef, optional
+#endif
+#ifdef __ID3D12Device4_INTERFACE_DEFINED__
+    ID3D12Device4* m_Device4 = NULL; // AddRef, optional
+#endif
+#ifdef __ID3D12Device8_INTERFACE_DEFINED__
+    ID3D12Device8* m_Device8 = NULL; // AddRef, optional
+#endif
+#ifdef __ID3D12Device10_INTERFACE_DEFINED__
+    ID3D12Device10* m_Device10 = NULL;  // AddRef, optional
+#endif
+    IDXGIAdapter* m_Adapter; // AddRef
+#if D3D12MA_DXGI_1_4
+    IDXGIAdapter3* m_Adapter3 = NULL; // AddRef, optional
+#endif
+    UINT64 m_PreferredBlockSize;
+    ALLOCATION_CALLBACKS m_AllocationCallbacks;
+    D3D12MA_ATOMIC_UINT32 m_CurrentFrameIndex;
+    DXGI_ADAPTER_DESC m_AdapterDesc;
+    D3D12_FEATURE_DATA_D3D12_OPTIONS m_D3D12Options;
+    D3D12_FEATURE_DATA_ARCHITECTURE m_D3D12Architecture;
+    AllocationObjectAllocator m_AllocationObjectAllocator;
+
+    D3D12MA_RW_MUTEX m_PoolsMutex[HEAP_TYPE_COUNT];
+    PoolList m_Pools[HEAP_TYPE_COUNT];
+    // Default pools.
+    BlockVector* m_BlockVectors[DEFAULT_POOL_MAX_COUNT];
+    CommittedAllocationList m_CommittedAllocations[STANDARD_HEAP_TYPE_COUNT];
+
+    /*
+    Heuristics that decides whether a resource should better be placed in its own,
+    dedicated allocation (committed resource rather than placed resource).
+    */
+    template<typename D3D12_RESOURCE_DESC_T>
+    static bool PrefersCommittedAllocation(const D3D12_RESOURCE_DESC_T& resourceDesc);
+
+    // Allocates and registers new committed resource with implicit heap, as dedicated allocation.
+    // Creates and returns Allocation object and optionally D3D12 resource.
+    HRESULT AllocateCommittedResource(
+        const CommittedAllocationParameters& committedAllocParams,
+        UINT64 resourceSize, bool withinBudget, void* pPrivateData,
+        const CREATE_RESOURCE_PARAMS& createParams,
+        Allocation** ppAllocation, REFIID riidResource, void** ppvResource);
+
+    // Allocates and registers new heap without any resources placed in it, as dedicated allocation.
+    // Creates and returns Allocation object.
+    HRESULT AllocateHeap(
+        const CommittedAllocationParameters& committedAllocParams,
+        const D3D12_RESOURCE_ALLOCATION_INFO& allocInfo, bool withinBudget,
+        void* pPrivateData, Allocation** ppAllocation);
+
+    template<typename D3D12_RESOURCE_DESC_T>
+    HRESULT CalcAllocationParams(const ALLOCATION_DESC& allocDesc, UINT64 allocSize,
+        const D3D12_RESOURCE_DESC_T* resDesc, // Optional
+        BlockVector*& outBlockVector, CommittedAllocationParameters& outCommittedAllocationParams, bool& outPreferCommitted);
+
+    // Returns UINT32_MAX if index cannot be calculcated.
+    UINT CalcDefaultPoolIndex(const ALLOCATION_DESC& allocDesc, ResourceClass resourceClass) const;
+    void CalcDefaultPoolParams(D3D12_HEAP_TYPE& outHeapType, D3D12_HEAP_FLAGS& outHeapFlags, UINT index) const;
+
+    // Registers Pool object in m_Pools.
+    void RegisterPool(Pool* pool, D3D12_HEAP_TYPE heapType);
+    // Unregisters Pool object from m_Pools.
+    void UnregisterPool(Pool* pool, D3D12_HEAP_TYPE heapType);
+
+    HRESULT UpdateD3D12Budget();
+    
+    D3D12_RESOURCE_ALLOCATION_INFO GetResourceAllocationInfoNative(const D3D12_RESOURCE_DESC& resourceDesc) const;
+#ifdef __ID3D12Device8_INTERFACE_DEFINED__
+    D3D12_RESOURCE_ALLOCATION_INFO GetResourceAllocationInfoNative(const D3D12_RESOURCE_DESC1& resourceDesc) const;
+#endif
+
+    template<typename D3D12_RESOURCE_DESC_T>
+    D3D12_RESOURCE_ALLOCATION_INFO GetResourceAllocationInfo(D3D12_RESOURCE_DESC_T& inOutResourceDesc) const;
+
+    bool NewAllocationWithinBudget(D3D12_HEAP_TYPE heapType, UINT64 size);
+
+    // Writes object { } with data of given budget.
+    static void WriteBudgetToJson(JsonWriter& json, const Budget& budget);
+};
+
+#ifndef _D3D12MA_ALLOCATOR_PIMPL_FUNCTINOS
+AllocatorPimpl::AllocatorPimpl(const ALLOCATION_CALLBACKS& allocationCallbacks, const ALLOCATOR_DESC& desc)
+    : m_UseMutex((desc.Flags & ALLOCATOR_FLAG_SINGLETHREADED) == 0),
+    m_AlwaysCommitted((desc.Flags & ALLOCATOR_FLAG_ALWAYS_COMMITTED) != 0),
+    m_MsaaAlwaysCommitted((desc.Flags & ALLOCATOR_FLAG_MSAA_TEXTURES_ALWAYS_COMMITTED) != 0),
+    m_Device(desc.pDevice),
+    m_Adapter(desc.pAdapter),
+    m_PreferredBlockSize(desc.PreferredBlockSize != 0 ? desc.PreferredBlockSize : D3D12MA_DEFAULT_BLOCK_SIZE),
+    m_AllocationCallbacks(allocationCallbacks),
+    m_CurrentFrameIndex(0),
+    // Below this line don't use allocationCallbacks but m_AllocationCallbacks!!!
+    m_AllocationObjectAllocator(m_AllocationCallbacks)
+{
+    // desc.pAllocationCallbacks intentionally ignored here, preprocessed by CreateAllocator.
+    ZeroMemory(&m_D3D12Options, sizeof(m_D3D12Options));
+    ZeroMemory(&m_D3D12Architecture, sizeof(m_D3D12Architecture));
+
+    ZeroMemory(m_BlockVectors, sizeof(m_BlockVectors));
+
+    for (UINT i = 0; i < STANDARD_HEAP_TYPE_COUNT; ++i)
+    {
+        m_CommittedAllocations[i].Init(
+            m_UseMutex,
+            (D3D12_HEAP_TYPE)(D3D12_HEAP_TYPE_DEFAULT + i),
+            NULL); // pool
+    }
+
+    m_Device->AddRef();
+    m_Adapter->AddRef();
+}
+
+HRESULT AllocatorPimpl::Init(const ALLOCATOR_DESC& desc)
+{
+#if D3D12MA_DXGI_1_4
+    desc.pAdapter->QueryInterface(D3D12MA_IID_PPV_ARGS(&m_Adapter3));
+#endif
+
+#ifdef __ID3D12Device1_INTERFACE_DEFINED__
+    m_Device->QueryInterface(D3D12MA_IID_PPV_ARGS(&m_Device1));
+#endif
+
+#ifdef __ID3D12Device4_INTERFACE_DEFINED__
+    m_Device->QueryInterface(D3D12MA_IID_PPV_ARGS(&m_Device4));
+#endif
+
+#ifdef __ID3D12Device8_INTERFACE_DEFINED__
+    m_Device->QueryInterface(D3D12MA_IID_PPV_ARGS(&m_Device8));
+    
+    if((desc.Flags & ALLOCATOR_FLAG_DEFAULT_POOLS_NOT_ZEROED) != 0)
+    {
+        D3D12_FEATURE_DATA_D3D12_OPTIONS7 options7 = {};
+        if(SUCCEEDED(m_Device->CheckFeatureSupport(D3D12_FEATURE_D3D12_OPTIONS7, &options7, sizeof(options7))))
+        {
+            // DEFAULT_POOLS_NOT_ZEROED both supported and enabled by the user.
+            m_DefaultPoolsNotZeroed = true;
+        }
+    }
+#endif
+
+#ifdef __ID3D12Device10_INTERFACE_DEFINED__
+    m_Device->QueryInterface(D3D12MA_IID_PPV_ARGS(&m_Device10));
+#endif
+
+    HRESULT hr = m_Adapter->GetDesc(&m_AdapterDesc);
+    if (FAILED(hr))
+    {
+        return hr;
+    }
+
+    hr = m_Device->CheckFeatureSupport(D3D12_FEATURE_D3D12_OPTIONS, &m_D3D12Options, sizeof(m_D3D12Options));
+    if (FAILED(hr))
+    {
+        return hr;
+    }
+#ifdef D3D12MA_FORCE_RESOURCE_HEAP_TIER
+    m_D3D12Options.ResourceHeapTier = (D3D12MA_FORCE_RESOURCE_HEAP_TIER);
+#endif
+
+    hr = m_Device->CheckFeatureSupport(D3D12_FEATURE_ARCHITECTURE, &m_D3D12Architecture, sizeof(m_D3D12Architecture));
+    if (FAILED(hr))
+    {
+        m_D3D12Architecture.UMA = FALSE;
+        m_D3D12Architecture.CacheCoherentUMA = FALSE;
+    }
+
+    D3D12_HEAP_PROPERTIES heapProps = {};
+    const UINT defaultPoolCount = GetDefaultPoolCount();
+    for (UINT i = 0; i < defaultPoolCount; ++i)
+    {
+        D3D12_HEAP_FLAGS heapFlags;
+        CalcDefaultPoolParams(heapProps.Type, heapFlags, i);
+
+#if D3D12MA_CREATE_NOT_ZEROED_AVAILABLE
+        if(m_DefaultPoolsNotZeroed)
+        {
+            heapFlags |= D3D12_HEAP_FLAG_CREATE_NOT_ZEROED;
+        }
+#endif
+
+        m_BlockVectors[i] = D3D12MA_NEW(GetAllocs(), BlockVector)(
+            this, // hAllocator
+            heapProps, // heapType
+            heapFlags, // heapFlags
+            m_PreferredBlockSize,
+            0, // minBlockCount
+            SIZE_MAX, // maxBlockCount
+            false, // explicitBlockSize
+            D3D12MA_DEBUG_ALIGNMENT, // minAllocationAlignment
+            0, // Default algorithm,
+            m_MsaaAlwaysCommitted,
+            NULL, // pProtectedSession
+            D3D12_RESIDENCY_PRIORITY_NONE); // residencyPriority
+        // No need to call m_pBlockVectors[i]->CreateMinBlocks here, becase minBlockCount is 0.
+    }
+
+#if D3D12MA_DXGI_1_4
+    UpdateD3D12Budget();
+#endif
+
+    return S_OK;
+}
+
+AllocatorPimpl::~AllocatorPimpl()
+{
+#ifdef __ID3D12Device10_INTERFACE_DEFINED__
+    SAFE_RELEASE(m_Device10);
+#endif
+#ifdef __ID3D12Device8_INTERFACE_DEFINED__
+    SAFE_RELEASE(m_Device8);
+#endif
+#ifdef __ID3D12Device4_INTERFACE_DEFINED__
+    SAFE_RELEASE(m_Device4);
+#endif
+#ifdef __ID3D12Device1_INTERFACE_DEFINED__
+    SAFE_RELEASE(m_Device1);
+#endif
+#if D3D12MA_DXGI_1_4
+    SAFE_RELEASE(m_Adapter3);
+#endif
+    SAFE_RELEASE(m_Adapter);
+    SAFE_RELEASE(m_Device);
+
+    for (UINT i = DEFAULT_POOL_MAX_COUNT; i--; )
+    {
+        D3D12MA_DELETE(GetAllocs(), m_BlockVectors[i]);
+    }
+
+    for (UINT i = HEAP_TYPE_COUNT; i--; )
+    {
+        if (!m_Pools[i].IsEmpty())
+        {
+            D3D12MA_ASSERT(0 && "Unfreed pools found!");
+        }
+    }
+}
+
+bool AllocatorPimpl::HeapFlagsFulfillResourceHeapTier(D3D12_HEAP_FLAGS flags) const
+{
+    if (SupportsResourceHeapTier2())
+    {
+        return true;
+    }
+    else
+    {
+        const bool allowBuffers = (flags & D3D12_HEAP_FLAG_DENY_BUFFERS) == 0;
+        const bool allowRtDsTextures = (flags & D3D12_HEAP_FLAG_DENY_RT_DS_TEXTURES) == 0;
+        const bool allowNonRtDsTextures = (flags & D3D12_HEAP_FLAG_DENY_NON_RT_DS_TEXTURES) == 0;
+        const uint8_t allowedGroupCount = (allowBuffers ? 1 : 0) + (allowRtDsTextures ? 1 : 0) + (allowNonRtDsTextures ? 1 : 0);
+        return allowedGroupCount == 1;
+    }
+}
+
+UINT AllocatorPimpl::StandardHeapTypeToMemorySegmentGroup(D3D12_HEAP_TYPE heapType) const
+{
+    D3D12MA_ASSERT(IsHeapTypeStandard(heapType));
+    if (IsUMA())
+        return DXGI_MEMORY_SEGMENT_GROUP_LOCAL_COPY;
+    return heapType == D3D12_HEAP_TYPE_DEFAULT ?
+        DXGI_MEMORY_SEGMENT_GROUP_LOCAL_COPY : DXGI_MEMORY_SEGMENT_GROUP_NON_LOCAL_COPY;
+}
+
+UINT AllocatorPimpl::HeapPropertiesToMemorySegmentGroup(const D3D12_HEAP_PROPERTIES& heapProps) const
+{
+    if (IsUMA())
+        return DXGI_MEMORY_SEGMENT_GROUP_LOCAL_COPY;
+    if (heapProps.MemoryPoolPreference == D3D12_MEMORY_POOL_UNKNOWN)
+        return StandardHeapTypeToMemorySegmentGroup(heapProps.Type);
+    return heapProps.MemoryPoolPreference == D3D12_MEMORY_POOL_L1 ?
+        DXGI_MEMORY_SEGMENT_GROUP_LOCAL_COPY : DXGI_MEMORY_SEGMENT_GROUP_NON_LOCAL_COPY;
+}
+
+UINT64 AllocatorPimpl::GetMemoryCapacity(UINT memorySegmentGroup) const
+{
+    switch (memorySegmentGroup)
+    {
+    case DXGI_MEMORY_SEGMENT_GROUP_LOCAL_COPY:
+        return IsUMA() ?
+            m_AdapterDesc.DedicatedVideoMemory + m_AdapterDesc.SharedSystemMemory : m_AdapterDesc.DedicatedVideoMemory;
+    case DXGI_MEMORY_SEGMENT_GROUP_NON_LOCAL_COPY:
+        return IsUMA() ? 0 : m_AdapterDesc.SharedSystemMemory;
+    default:
+        D3D12MA_ASSERT(0);
+        return UINT64_MAX;
+    }
+}
+
+HRESULT AllocatorPimpl::CreatePlacedResourceWrap(
+    ID3D12Heap *pHeap,
+    UINT64 HeapOffset,
+    const CREATE_RESOURCE_PARAMS& createParams,
+    REFIID riidResource,
+    void** ppvResource)
+{
+#ifdef __ID3D12Device10_INTERFACE_DEFINED__
+    if (createParams.Variant == CREATE_RESOURCE_PARAMS::VARIANT_WITH_LAYOUT)
+    {
+        if (!m_Device10)
+        {
+            return E_NOINTERFACE;
+        }
+        return m_Device10->CreatePlacedResource2(pHeap, HeapOffset,
+            createParams.GetResourceDesc1(), createParams.GetInitialLayout(),
+            createParams.GetOptimizedClearValue(), createParams.GetNumCastableFormats(),
+            createParams.GetCastableFormats(), riidResource, ppvResource);
+    } else
+#endif
+#ifdef __ID3D12Device8_INTERFACE_DEFINED__
+    if (createParams.Variant == CREATE_RESOURCE_PARAMS::VARIANT_WITH_STATE_AND_DESC1)
+    {
+        if (!m_Device8)
+        {
+            return E_NOINTERFACE;
+        }
+        return m_Device8->CreatePlacedResource1(pHeap, HeapOffset,
+            createParams.GetResourceDesc1(), createParams.GetInitialResourceState(),
+            createParams.GetOptimizedClearValue(), riidResource, ppvResource);
+    } else 
+#endif
+    if (createParams.Variant == CREATE_RESOURCE_PARAMS::VARIANT_WITH_STATE)
+    {
+        return m_Device->CreatePlacedResource(pHeap, HeapOffset,
+            createParams.GetResourceDesc(), createParams.GetInitialResourceState(),
+            createParams.GetOptimizedClearValue(), riidResource, ppvResource);
+    }
+    else
+    {
+        D3D12MA_ASSERT(0);
+        return E_INVALIDARG;
+    }
+}
+
+
+HRESULT AllocatorPimpl::CreateResource(
+    const ALLOCATION_DESC* pAllocDesc,
+    const CREATE_RESOURCE_PARAMS& createParams,
+    Allocation** ppAllocation,
+    REFIID riidResource,
+    void** ppvResource)
+{
+    D3D12MA_ASSERT(pAllocDesc && createParams.GetBaseResourceDesc() && ppAllocation);
+
+    *ppAllocation = NULL;
+    if (ppvResource)
+    {
+        *ppvResource = NULL;
+    }
+
+    CREATE_RESOURCE_PARAMS finalCreateParams = createParams;
+    D3D12_RESOURCE_DESC finalResourceDesc;
+#ifdef __ID3D12Device8_INTERFACE_DEFINED__
+    D3D12_RESOURCE_DESC1 finalResourceDesc1;
+#endif
+    D3D12_RESOURCE_ALLOCATION_INFO resAllocInfo;
+    if (createParams.Variant == CREATE_RESOURCE_PARAMS::VARIANT_WITH_STATE)
+    {
+        finalResourceDesc = *createParams.GetResourceDesc();
+        finalCreateParams.AccessResourceDesc() = &finalResourceDesc;
+        resAllocInfo = GetResourceAllocationInfo(finalResourceDesc);
+    }
+#ifdef __ID3D12Device8_INTERFACE_DEFINED__
+    else if (createParams.Variant == CREATE_RESOURCE_PARAMS::VARIANT_WITH_STATE_AND_DESC1)
+    {
+        if (!m_Device8)
+        {
+            return E_NOINTERFACE;
+        }
+        finalResourceDesc1 = *createParams.GetResourceDesc1();
+        finalCreateParams.AccessResourceDesc1() = &finalResourceDesc1;
+        resAllocInfo = GetResourceAllocationInfo(finalResourceDesc1);
+    }
+#endif
+#ifdef __ID3D12Device10_INTERFACE_DEFINED__
+    else if (createParams.Variant == CREATE_RESOURCE_PARAMS::VARIANT_WITH_LAYOUT)
+    {
+        if (!m_Device10)
+        {
+            return E_NOINTERFACE;
+        }
+        finalResourceDesc1 = *createParams.GetResourceDesc1();
+        finalCreateParams.AccessResourceDesc1() = &finalResourceDesc1;
+        resAllocInfo = GetResourceAllocationInfo(finalResourceDesc1);
+    }
+#endif
+    else
+    {
+        D3D12MA_ASSERT(0);
+        return E_INVALIDARG;
+    }
+    D3D12MA_ASSERT(IsPow2(resAllocInfo.Alignment));
+    D3D12MA_ASSERT(resAllocInfo.SizeInBytes > 0);
+
+    BlockVector* blockVector = NULL;
+    CommittedAllocationParameters committedAllocationParams = {};
+    bool preferCommitted = false;
+    
+    HRESULT hr;
+#ifdef __ID3D12Device8_INTERFACE_DEFINED__
+    if (createParams.Variant >= CREATE_RESOURCE_PARAMS::VARIANT_WITH_STATE_AND_DESC1)
+    {
+        hr = CalcAllocationParams<D3D12_RESOURCE_DESC1>(*pAllocDesc, resAllocInfo.SizeInBytes,
+            createParams.GetResourceDesc1(),
+            blockVector, committedAllocationParams, preferCommitted);
+    }
+    else
+#endif
+    {
+        hr = CalcAllocationParams<D3D12_RESOURCE_DESC>(*pAllocDesc, resAllocInfo.SizeInBytes,
+            createParams.GetResourceDesc(),
+            blockVector, committedAllocationParams, preferCommitted);
+    }
+    if (FAILED(hr))
+        return hr;
+
+    const bool withinBudget = (pAllocDesc->Flags & ALLOCATION_FLAG_WITHIN_BUDGET) != 0;
+    hr = E_INVALIDARG;
+    if (committedAllocationParams.IsValid() && preferCommitted)
+    {
+        hr = AllocateCommittedResource(committedAllocationParams,
+            resAllocInfo.SizeInBytes, withinBudget, pAllocDesc->pPrivateData,
+            finalCreateParams, ppAllocation, riidResource, ppvResource);
+        if (SUCCEEDED(hr))
+            return hr;
+    }
+    if (blockVector != NULL)
+    {
+        hr = blockVector->CreateResource(resAllocInfo.SizeInBytes, resAllocInfo.Alignment,
+            *pAllocDesc, finalCreateParams,
+            ppAllocation, riidResource, ppvResource);
+        if (SUCCEEDED(hr))
+            return hr;
+    }
+    if (committedAllocationParams.IsValid() && !preferCommitted)
+    {
+        hr = AllocateCommittedResource(committedAllocationParams,
+            resAllocInfo.SizeInBytes, withinBudget, pAllocDesc->pPrivateData,
+            finalCreateParams, ppAllocation, riidResource, ppvResource);
+        if (SUCCEEDED(hr))
+            return hr;
+    }
+    return hr;
+}
+
+HRESULT AllocatorPimpl::AllocateMemory(
+    const ALLOCATION_DESC* pAllocDesc,
+    const D3D12_RESOURCE_ALLOCATION_INFO* pAllocInfo,
+    Allocation** ppAllocation)
+{
+    *ppAllocation = NULL;
+
+    BlockVector* blockVector = NULL;
+    CommittedAllocationParameters committedAllocationParams = {};
+    bool preferCommitted = false;
+    HRESULT hr = CalcAllocationParams<D3D12_RESOURCE_DESC>(*pAllocDesc, pAllocInfo->SizeInBytes,
+        NULL, // pResDesc
+        blockVector, committedAllocationParams, preferCommitted);
+    if (FAILED(hr))
+        return hr;
+
+    const bool withinBudget = (pAllocDesc->Flags & ALLOCATION_FLAG_WITHIN_BUDGET) != 0;
+    hr = E_INVALIDARG;
+    if (committedAllocationParams.IsValid() && preferCommitted)
+    {
+        hr = AllocateHeap(committedAllocationParams, *pAllocInfo, withinBudget, pAllocDesc->pPrivateData, ppAllocation);
+        if (SUCCEEDED(hr))
+            return hr;
+    }
+    if (blockVector != NULL)
+    {
+        hr = blockVector->Allocate(pAllocInfo->SizeInBytes, pAllocInfo->Alignment,
+            *pAllocDesc, 1, (Allocation**)ppAllocation);
+        if (SUCCEEDED(hr))
+            return hr;
+    }
+    if (committedAllocationParams.IsValid() && !preferCommitted)
+    {
+        hr = AllocateHeap(committedAllocationParams, *pAllocInfo, withinBudget, pAllocDesc->pPrivateData, ppAllocation);
+        if (SUCCEEDED(hr))
+            return hr;
+    }
+    return hr;
+}
+
+HRESULT AllocatorPimpl::CreateAliasingResource(
+    Allocation* pAllocation,
+    UINT64 AllocationLocalOffset,
+    const CREATE_RESOURCE_PARAMS& createParams,
+    REFIID riidResource,
+    void** ppvResource)
+{
+    *ppvResource = NULL;
+
+    CREATE_RESOURCE_PARAMS finalCreateParams = createParams;
+    D3D12_RESOURCE_DESC finalResourceDesc;
+#ifdef __ID3D12Device8_INTERFACE_DEFINED__
+    D3D12_RESOURCE_DESC1 finalResourceDesc1;
+#endif
+    D3D12_RESOURCE_ALLOCATION_INFO resAllocInfo;
+    if (createParams.Variant == CREATE_RESOURCE_PARAMS::VARIANT_WITH_STATE)
+    {
+        finalResourceDesc = *createParams.GetResourceDesc();
+        finalCreateParams.AccessResourceDesc() = &finalResourceDesc;
+        resAllocInfo = GetResourceAllocationInfo(finalResourceDesc);
+    }
+#ifdef __ID3D12Device8_INTERFACE_DEFINED__
+    else if (createParams.Variant == CREATE_RESOURCE_PARAMS::VARIANT_WITH_STATE_AND_DESC1)
+    {
+        if (!m_Device8)
+        {
+            return E_NOINTERFACE;
+        }
+        finalResourceDesc1 = *createParams.GetResourceDesc1();
+        finalCreateParams.AccessResourceDesc1() = &finalResourceDesc1;
+        resAllocInfo = GetResourceAllocationInfo(finalResourceDesc1);
+    }
+#endif
+#ifdef __ID3D12Device10_INTERFACE_DEFINED__
+    else if (createParams.Variant == CREATE_RESOURCE_PARAMS::VARIANT_WITH_LAYOUT)
+    {
+        if (!m_Device10)
+        {
+            return E_NOINTERFACE;
+        }
+        finalResourceDesc1 = *createParams.GetResourceDesc1();
+        finalCreateParams.AccessResourceDesc1() = &finalResourceDesc1;
+        resAllocInfo = GetResourceAllocationInfo(finalResourceDesc1);
+    }
+#endif
+    else
+    {
+        D3D12MA_ASSERT(0);
+        return E_INVALIDARG;
+    }
+    D3D12MA_ASSERT(IsPow2(resAllocInfo.Alignment));
+    D3D12MA_ASSERT(resAllocInfo.SizeInBytes > 0);
+
+    ID3D12Heap* const existingHeap = pAllocation->GetHeap();
+    const UINT64 existingOffset = pAllocation->GetOffset();
+    const UINT64 existingSize = pAllocation->GetSize();
+    const UINT64 newOffset = existingOffset + AllocationLocalOffset;
+
+    if (existingHeap == NULL ||
+        AllocationLocalOffset + resAllocInfo.SizeInBytes > existingSize ||
+        newOffset % resAllocInfo.Alignment != 0)
+    {
+        return E_INVALIDARG;
+    }
+
+    return CreatePlacedResourceWrap(existingHeap, newOffset, finalCreateParams, riidResource, ppvResource);
+}
+
+void AllocatorPimpl::FreeCommittedMemory(Allocation* allocation)
+{
+    D3D12MA_ASSERT(allocation && allocation->m_PackedData.GetType() == Allocation::TYPE_COMMITTED);
+
+    CommittedAllocationList* const allocList = allocation->m_Committed.list;
+    allocList->Unregister(allocation);
+
+    const UINT memSegmentGroup = allocList->GetMemorySegmentGroup(this);
+    const UINT64 allocSize = allocation->GetSize();
+    m_Budget.RemoveAllocation(memSegmentGroup, allocSize);
+    m_Budget.RemoveBlock(memSegmentGroup, allocSize);
+}
+
+void AllocatorPimpl::FreePlacedMemory(Allocation* allocation)
+{
+    D3D12MA_ASSERT(allocation && allocation->m_PackedData.GetType() == Allocation::TYPE_PLACED);
+
+    NormalBlock* const block = allocation->m_Placed.block;
+    D3D12MA_ASSERT(block);
+    BlockVector* const blockVector = block->GetBlockVector();
+    D3D12MA_ASSERT(blockVector);
+    m_Budget.RemoveAllocation(HeapPropertiesToMemorySegmentGroup(block->GetHeapProperties()), allocation->GetSize());
+    blockVector->Free(allocation);
+}
+
+void AllocatorPimpl::FreeHeapMemory(Allocation* allocation)
+{
+    D3D12MA_ASSERT(allocation && allocation->m_PackedData.GetType() == Allocation::TYPE_HEAP);
+
+    CommittedAllocationList* const allocList = allocation->m_Committed.list;
+    allocList->Unregister(allocation);
+    SAFE_RELEASE(allocation->m_Heap.heap);
+
+    const UINT memSegmentGroup = allocList->GetMemorySegmentGroup(this);
+    const UINT64 allocSize = allocation->GetSize();
+    m_Budget.RemoveAllocation(memSegmentGroup, allocSize);
+    m_Budget.RemoveBlock(memSegmentGroup, allocSize);
+}
+
+void AllocatorPimpl::SetResidencyPriority(ID3D12Pageable* obj, D3D12_RESIDENCY_PRIORITY priority) const
+{
+#ifdef __ID3D12Device1_INTERFACE_DEFINED__
+    if (priority != D3D12_RESIDENCY_PRIORITY_NONE && m_Device1)
+    {
+        // Intentionally ignoring the result.
+        m_Device1->SetResidencyPriority(1, &obj, &priority);
+    }
+#endif
+}
+
+void AllocatorPimpl::SetCurrentFrameIndex(UINT frameIndex)
+{
+    m_CurrentFrameIndex.store(frameIndex);
+
+#if D3D12MA_DXGI_1_4
+    UpdateD3D12Budget();
+#endif
+}
+
+void AllocatorPimpl::CalculateStatistics(TotalStatistics& outStats, DetailedStatistics outCutomHeaps[2])
+{
+    // Init stats
+    for (size_t i = 0; i < HEAP_TYPE_COUNT; i++)
+        ClearDetailedStatistics(outStats.HeapType[i]);
+    for (size_t i = 0; i < DXGI_MEMORY_SEGMENT_GROUP_COUNT; i++)
+        ClearDetailedStatistics(outStats.MemorySegmentGroup[i]);
+    ClearDetailedStatistics(outStats.Total);
+    if (outCutomHeaps)
+    {
+        ClearDetailedStatistics(outCutomHeaps[0]);
+        ClearDetailedStatistics(outCutomHeaps[1]);
+    }
+
+    // Process default pools. 3 standard heap types only. Add them to outStats.HeapType[i].
+    if (SupportsResourceHeapTier2())
+    {
+        // DEFAULT, UPLOAD, READBACK.
+        for (size_t heapTypeIndex = 0; heapTypeIndex < STANDARD_HEAP_TYPE_COUNT; ++heapTypeIndex)
+        {
+            BlockVector* const pBlockVector = m_BlockVectors[heapTypeIndex];
+            D3D12MA_ASSERT(pBlockVector);
+            pBlockVector->AddDetailedStatistics(outStats.HeapType[heapTypeIndex]);
+        }
+    }
+    else
+    {
+        // DEFAULT, UPLOAD, READBACK.
+        for (size_t heapTypeIndex = 0; heapTypeIndex < STANDARD_HEAP_TYPE_COUNT; ++heapTypeIndex)
+        {
+            for (size_t heapSubType = 0; heapSubType < 3; ++heapSubType)
+            {
+                BlockVector* const pBlockVector = m_BlockVectors[heapTypeIndex * 3 + heapSubType];
+                D3D12MA_ASSERT(pBlockVector);
+                pBlockVector->AddDetailedStatistics(outStats.HeapType[heapTypeIndex]);
+            }
+        }
+    }
+
+    // Sum them up to memory segment groups.
+    AddDetailedStatistics(
+        outStats.MemorySegmentGroup[StandardHeapTypeToMemorySegmentGroup(D3D12_HEAP_TYPE_DEFAULT)],
+        outStats.HeapType[0]);
+    AddDetailedStatistics(
+        outStats.MemorySegmentGroup[StandardHeapTypeToMemorySegmentGroup(D3D12_HEAP_TYPE_UPLOAD)],
+        outStats.HeapType[1]);
+    AddDetailedStatistics(
+        outStats.MemorySegmentGroup[StandardHeapTypeToMemorySegmentGroup(D3D12_HEAP_TYPE_READBACK)],
+        outStats.HeapType[2]);
+
+    // Process custom pools.
+    DetailedStatistics tmpStats;
+    for (size_t heapTypeIndex = 0; heapTypeIndex < HEAP_TYPE_COUNT; ++heapTypeIndex)
+    {
+        MutexLockRead lock(m_PoolsMutex[heapTypeIndex], m_UseMutex);
+        PoolList& poolList = m_Pools[heapTypeIndex];
+        for (PoolPimpl* pool = poolList.Front(); pool != NULL; pool = poolList.GetNext(pool))
+        {
+            const D3D12_HEAP_PROPERTIES& poolHeapProps = pool->GetDesc().HeapProperties;
+            ClearDetailedStatistics(tmpStats);
+            pool->AddDetailedStatistics(tmpStats);
+            AddDetailedStatistics(
+                outStats.HeapType[heapTypeIndex], tmpStats);
+
+            UINT memorySegment = HeapPropertiesToMemorySegmentGroup(poolHeapProps);
+            AddDetailedStatistics(
+                outStats.MemorySegmentGroup[memorySegment], tmpStats);
+
+            if (outCutomHeaps)
+                AddDetailedStatistics(outCutomHeaps[memorySegment], tmpStats);
+        }
+    }
+
+    // Process committed allocations. 3 standard heap types only.
+    for (UINT heapTypeIndex = 0; heapTypeIndex < STANDARD_HEAP_TYPE_COUNT; ++heapTypeIndex)
+    {
+        ClearDetailedStatistics(tmpStats);
+        m_CommittedAllocations[heapTypeIndex].AddDetailedStatistics(tmpStats);
+        AddDetailedStatistics(
+            outStats.HeapType[heapTypeIndex], tmpStats);
+        AddDetailedStatistics(
+            outStats.MemorySegmentGroup[StandardHeapTypeToMemorySegmentGroup(IndexToHeapType(heapTypeIndex))], tmpStats);
+    }
+
+    // Sum up memory segment groups to totals.
+    AddDetailedStatistics(outStats.Total, outStats.MemorySegmentGroup[0]);
+    AddDetailedStatistics(outStats.Total, outStats.MemorySegmentGroup[1]);
+
+    D3D12MA_ASSERT(outStats.Total.Stats.BlockCount ==
+        outStats.MemorySegmentGroup[0].Stats.BlockCount + outStats.MemorySegmentGroup[1].Stats.BlockCount);
+    D3D12MA_ASSERT(outStats.Total.Stats.AllocationCount ==
+        outStats.MemorySegmentGroup[0].Stats.AllocationCount + outStats.MemorySegmentGroup[1].Stats.AllocationCount);
+    D3D12MA_ASSERT(outStats.Total.Stats.BlockBytes ==
+        outStats.MemorySegmentGroup[0].Stats.BlockBytes + outStats.MemorySegmentGroup[1].Stats.BlockBytes);
+    D3D12MA_ASSERT(outStats.Total.Stats.AllocationBytes ==
+        outStats.MemorySegmentGroup[0].Stats.AllocationBytes + outStats.MemorySegmentGroup[1].Stats.AllocationBytes);
+    D3D12MA_ASSERT(outStats.Total.UnusedRangeCount ==
+        outStats.MemorySegmentGroup[0].UnusedRangeCount + outStats.MemorySegmentGroup[1].UnusedRangeCount);
+
+    D3D12MA_ASSERT(outStats.Total.Stats.BlockCount ==
+        outStats.HeapType[0].Stats.BlockCount + outStats.HeapType[1].Stats.BlockCount +
+        outStats.HeapType[2].Stats.BlockCount + outStats.HeapType[3].Stats.BlockCount);
+    D3D12MA_ASSERT(outStats.Total.Stats.AllocationCount ==
+        outStats.HeapType[0].Stats.AllocationCount + outStats.HeapType[1].Stats.AllocationCount +
+        outStats.HeapType[2].Stats.AllocationCount + outStats.HeapType[3].Stats.AllocationCount);
+    D3D12MA_ASSERT(outStats.Total.Stats.BlockBytes ==
+        outStats.HeapType[0].Stats.BlockBytes + outStats.HeapType[1].Stats.BlockBytes +
+        outStats.HeapType[2].Stats.BlockBytes + outStats.HeapType[3].Stats.BlockBytes);
+    D3D12MA_ASSERT(outStats.Total.Stats.AllocationBytes ==
+        outStats.HeapType[0].Stats.AllocationBytes + outStats.HeapType[1].Stats.AllocationBytes +
+        outStats.HeapType[2].Stats.AllocationBytes + outStats.HeapType[3].Stats.AllocationBytes);
+    D3D12MA_ASSERT(outStats.Total.UnusedRangeCount ==
+        outStats.HeapType[0].UnusedRangeCount + outStats.HeapType[1].UnusedRangeCount +
+        outStats.HeapType[2].UnusedRangeCount + outStats.HeapType[3].UnusedRangeCount);
+}
+
+void AllocatorPimpl::GetBudget(Budget* outLocalBudget, Budget* outNonLocalBudget)
+{
+    if (outLocalBudget)
+        m_Budget.GetStatistics(outLocalBudget->Stats, DXGI_MEMORY_SEGMENT_GROUP_LOCAL_COPY);
+    if (outNonLocalBudget)
+        m_Budget.GetStatistics(outNonLocalBudget->Stats, DXGI_MEMORY_SEGMENT_GROUP_NON_LOCAL_COPY);
+
+#if D3D12MA_DXGI_1_4
+    if (m_Adapter3)
+    {
+        if (!m_Budget.ShouldUpdateBudget())
+        {
+            m_Budget.GetBudget(m_UseMutex,
+                outLocalBudget ? &outLocalBudget->UsageBytes : NULL,
+                outLocalBudget ? &outLocalBudget->BudgetBytes : NULL,
+                outNonLocalBudget ? &outNonLocalBudget->UsageBytes : NULL,
+                outNonLocalBudget ? &outNonLocalBudget->BudgetBytes : NULL);
+        }
+        else
+        {
+            UpdateD3D12Budget();
+            GetBudget(outLocalBudget, outNonLocalBudget); // Recursion
+        }
+    }
+    else
+#endif
+    {
+        if (outLocalBudget)
+        {
+            outLocalBudget->UsageBytes = outLocalBudget->Stats.BlockBytes;
+            outLocalBudget->BudgetBytes = GetMemoryCapacity(DXGI_MEMORY_SEGMENT_GROUP_LOCAL_COPY) * 8 / 10; // 80% heuristics.
+        }
+        if (outNonLocalBudget)
+        {
+            outNonLocalBudget->UsageBytes = outNonLocalBudget->Stats.BlockBytes;
+            outNonLocalBudget->BudgetBytes = GetMemoryCapacity(DXGI_MEMORY_SEGMENT_GROUP_NON_LOCAL_COPY) * 8 / 10; // 80% heuristics.
+        }
+    }
+}
+
+void AllocatorPimpl::GetBudgetForHeapType(Budget& outBudget, D3D12_HEAP_TYPE heapType)
+{
+    switch (heapType)
+    {
+    case D3D12_HEAP_TYPE_DEFAULT:
+        GetBudget(&outBudget, NULL);
+        break;
+    case D3D12_HEAP_TYPE_UPLOAD:
+    case D3D12_HEAP_TYPE_READBACK:
+        GetBudget(NULL, &outBudget);
+        break;
+    default: D3D12MA_ASSERT(0);
+    }
+}
+
+void AllocatorPimpl::BuildStatsString(WCHAR** ppStatsString, BOOL detailedMap)
+{
+    StringBuilder sb(GetAllocs());
+    {
+        Budget localBudget = {}, nonLocalBudget = {};
+        GetBudget(&localBudget, &nonLocalBudget);
+
+        TotalStatistics stats;
+        DetailedStatistics customHeaps[2];
+        CalculateStatistics(stats, customHeaps);
+
+        JsonWriter json(GetAllocs(), sb);
+        json.BeginObject();
+        {
+            json.WriteString(L"General");
+            json.BeginObject();
+            {
+                json.WriteString(L"API");
+                json.WriteString(L"Direct3D 12");
+
+                json.WriteString(L"GPU");
+                json.WriteString(m_AdapterDesc.Description);
+
+                json.WriteString(L"DedicatedVideoMemory");
+                json.WriteNumber((UINT64)m_AdapterDesc.DedicatedVideoMemory);
+                json.WriteString(L"DedicatedSystemMemory");
+                json.WriteNumber((UINT64)m_AdapterDesc.DedicatedSystemMemory);
+                json.WriteString(L"SharedSystemMemory");
+                json.WriteNumber((UINT64)m_AdapterDesc.SharedSystemMemory);
+                
+                json.WriteString(L"ResourceHeapTier");
+                json.WriteNumber(static_cast<UINT>(m_D3D12Options.ResourceHeapTier));
+
+                json.WriteString(L"ResourceBindingTier");
+                json.WriteNumber(static_cast<UINT>(m_D3D12Options.ResourceBindingTier));
+
+                json.WriteString(L"TiledResourcesTier");
+                json.WriteNumber(static_cast<UINT>(m_D3D12Options.TiledResourcesTier));
+
+                json.WriteString(L"TileBasedRenderer");
+                json.WriteBool(m_D3D12Architecture.TileBasedRenderer);
+
+                json.WriteString(L"UMA");
+                json.WriteBool(m_D3D12Architecture.UMA);
+                json.WriteString(L"CacheCoherentUMA");
+                json.WriteBool(m_D3D12Architecture.CacheCoherentUMA);
+            }
+            json.EndObject();
+        }
+        {
+            json.WriteString(L"Total");
+            json.AddDetailedStatisticsInfoObject(stats.Total);
+        }
+        {
+            json.WriteString(L"MemoryInfo");
+            json.BeginObject();
+            {
+                json.WriteString(L"L0");
+                json.BeginObject();
+                {
+                    json.WriteString(L"Budget");
+                    WriteBudgetToJson(json, IsUMA() ? localBudget : nonLocalBudget); // When UMA device only L0 present as local
+
+                    json.WriteString(L"Stats");
+                    json.AddDetailedStatisticsInfoObject(stats.MemorySegmentGroup[!IsUMA()]);
+
+                    json.WriteString(L"MemoryPools");
+                    json.BeginObject();
+                    {
+                        if (IsUMA())
+                        {
+                            json.WriteString(L"DEFAULT");
+                            json.BeginObject();
+                            {
+                                json.WriteString(L"Stats");
+                                json.AddDetailedStatisticsInfoObject(stats.HeapType[0]);
+                            }
+                            json.EndObject();
+                        }
+                        json.WriteString(L"UPLOAD");
+                        json.BeginObject();
+                        {
+                            json.WriteString(L"Stats");
+                            json.AddDetailedStatisticsInfoObject(stats.HeapType[1]);
+                        }
+                        json.EndObject();
+
+                        json.WriteString(L"READBACK");
+                        json.BeginObject();
+                        {
+                            json.WriteString(L"Stats");
+                            json.AddDetailedStatisticsInfoObject(stats.HeapType[2]);
+                        }
+                        json.EndObject();
+
+                        json.WriteString(L"CUSTOM");
+                        json.BeginObject();
+                        {
+                            json.WriteString(L"Stats");
+                            json.AddDetailedStatisticsInfoObject(customHeaps[!IsUMA()]);
+                        }
+                        json.EndObject();
+                    }
+                    json.EndObject();
+                }
+                json.EndObject();
+                if (!IsUMA())
+                {
+                    json.WriteString(L"L1");
+                    json.BeginObject();
+                    {
+                        json.WriteString(L"Budget");
+                        WriteBudgetToJson(json, localBudget);
+
+                        json.WriteString(L"Stats");
+                        json.AddDetailedStatisticsInfoObject(stats.MemorySegmentGroup[0]);
+
+                        json.WriteString(L"MemoryPools");
+                        json.BeginObject();
+                        {
+                            json.WriteString(L"DEFAULT");
+                            json.BeginObject();
+                            {
+                                json.WriteString(L"Stats");
+                                json.AddDetailedStatisticsInfoObject(stats.HeapType[0]);
+                            }
+                            json.EndObject();
+
+                            json.WriteString(L"CUSTOM");
+                            json.BeginObject();
+                            {
+                                json.WriteString(L"Stats");
+                                json.AddDetailedStatisticsInfoObject(customHeaps[0]);
+                            }
+                            json.EndObject();
+                        }
+                        json.EndObject();
+                    }
+                    json.EndObject();
+                }
+            }
+            json.EndObject();
+        }
+
+        if (detailedMap)
+        {
+            const auto writeHeapInfo = [&](BlockVector* blockVector, CommittedAllocationList* committedAllocs, bool customHeap)
+            {
+                D3D12MA_ASSERT(blockVector);
+
+                D3D12_HEAP_FLAGS flags = blockVector->GetHeapFlags();
+                json.WriteString(L"Flags");
+                json.BeginArray(true);
+                {
+                    if (flags & D3D12_HEAP_FLAG_SHARED)
+                        json.WriteString(L"HEAP_FLAG_SHARED");
+                    if (flags & D3D12_HEAP_FLAG_ALLOW_DISPLAY)
+                        json.WriteString(L"HEAP_FLAG_ALLOW_DISPLAY");
+                    if (flags & D3D12_HEAP_FLAG_SHARED_CROSS_ADAPTER)
+                        json.WriteString(L"HEAP_FLAG_CROSS_ADAPTER");
+#ifdef __ID3D12Device8_INTERFACE_DEFINED__
+                    if (flags & D3D12_HEAP_FLAG_HARDWARE_PROTECTED)
+                        json.WriteString(L"HEAP_FLAG_HARDWARE_PROTECTED");
+                    if (flags & D3D12_HEAP_FLAG_ALLOW_WRITE_WATCH)
+                        json.WriteString(L"HEAP_FLAG_ALLOW_WRITE_WATCH");
+                    if (flags & D3D12_HEAP_FLAG_ALLOW_SHADER_ATOMICS)
+                        json.WriteString(L"HEAP_FLAG_ALLOW_SHADER_ATOMICS");
+#endif
+#ifdef __ID3D12Device8_INTERFACE_DEFINED__
+                    if (flags & D3D12_HEAP_FLAG_CREATE_NOT_RESIDENT)
+                        json.WriteString(L"HEAP_FLAG_CREATE_NOT_RESIDENT");
+                    if (flags & D3D12_HEAP_FLAG_CREATE_NOT_ZEROED)
+                        json.WriteString(L"HEAP_FLAG_CREATE_NOT_ZEROED");
+#endif
+
+                    if (flags & D3D12_HEAP_FLAG_DENY_BUFFERS)
+                        json.WriteString(L"HEAP_FLAG_DENY_BUFFERS");
+                    if (flags & D3D12_HEAP_FLAG_DENY_RT_DS_TEXTURES)
+                        json.WriteString(L"HEAP_FLAG_DENY_RT_DS_TEXTURES");
+                    if (flags & D3D12_HEAP_FLAG_DENY_NON_RT_DS_TEXTURES)
+                        json.WriteString(L"HEAP_FLAG_DENY_NON_RT_DS_TEXTURES");
+
+                    flags &= ~(D3D12_HEAP_FLAG_SHARED
+                        | D3D12_HEAP_FLAG_DENY_BUFFERS
+                        | D3D12_HEAP_FLAG_ALLOW_DISPLAY
+                        | D3D12_HEAP_FLAG_SHARED_CROSS_ADAPTER
+                        | D3D12_HEAP_FLAG_DENY_RT_DS_TEXTURES
+                        | D3D12_HEAP_FLAG_DENY_NON_RT_DS_TEXTURES
+#ifdef __ID3D12Device8_INTERFACE_DEFINED__
+                        | D3D12_HEAP_FLAG_HARDWARE_PROTECTED
+                        | D3D12_HEAP_FLAG_ALLOW_WRITE_WATCH
+                        | D3D12_HEAP_FLAG_ALLOW_SHADER_ATOMICS
+#endif
+                    );
+#ifdef __ID3D12Device8_INTERFACE_DEFINED__
+                    flags &= ~(D3D12_HEAP_FLAG_CREATE_NOT_RESIDENT
+                        | D3D12_HEAP_FLAG_CREATE_NOT_ZEROED);
+#endif
+                    if (flags != 0)
+                        json.WriteNumber((UINT)flags);
+
+                    if (customHeap)
+                    {
+                        const D3D12_HEAP_PROPERTIES& properties = blockVector->GetHeapProperties();
+                        switch (properties.MemoryPoolPreference)
+                        {
+                        default:
+                            D3D12MA_ASSERT(0);
+                        case D3D12_MEMORY_POOL_UNKNOWN:
+                            json.WriteString(L"MEMORY_POOL_UNKNOWN");
+                            break;
+                        case D3D12_MEMORY_POOL_L0:
+                            json.WriteString(L"MEMORY_POOL_L0");
+                            break;
+                        case D3D12_MEMORY_POOL_L1:
+                            json.WriteString(L"MEMORY_POOL_L1");
+                            break;
+                        }
+                        switch (properties.CPUPageProperty)
+                        {
+                        default:
+                            D3D12MA_ASSERT(0);
+                        case D3D12_CPU_PAGE_PROPERTY_UNKNOWN:
+                            json.WriteString(L"CPU_PAGE_PROPERTY_UNKNOWN");
+                            break;
+                        case D3D12_CPU_PAGE_PROPERTY_NOT_AVAILABLE:
+                            json.WriteString(L"CPU_PAGE_PROPERTY_NOT_AVAILABLE");
+                            break;
+                        case D3D12_CPU_PAGE_PROPERTY_WRITE_COMBINE:
+                            json.WriteString(L"CPU_PAGE_PROPERTY_WRITE_COMBINE");
+                            break;
+                        case D3D12_CPU_PAGE_PROPERTY_WRITE_BACK:
+                            json.WriteString(L"CPU_PAGE_PROPERTY_WRITE_BACK");
+                            break;
+                        }
+                    }
+                }
+                json.EndArray();
+
+                json.WriteString(L"PreferredBlockSize");
+                json.WriteNumber(blockVector->GetPreferredBlockSize());
+
+                json.WriteString(L"Blocks");
+                blockVector->WriteBlockInfoToJson(json);
+
+                json.WriteString(L"DedicatedAllocations");
+                json.BeginArray();
+                if (committedAllocs)
+                    committedAllocs->BuildStatsString(json);
+                json.EndArray();
+            };
+
+            json.WriteString(L"DefaultPools");
+            json.BeginObject();
+            {
+                if (SupportsResourceHeapTier2())
+                {
+                    for (uint8_t heapType = 0; heapType < STANDARD_HEAP_TYPE_COUNT; ++heapType)
+                    {
+                        json.WriteString(HeapTypeNames[heapType]);
+                        json.BeginObject();
+                        writeHeapInfo(m_BlockVectors[heapType], m_CommittedAllocations + heapType, false);
+                        json.EndObject();
+                    }
+                }
+                else
+                {
+                    for (uint8_t heapType = 0; heapType < STANDARD_HEAP_TYPE_COUNT; ++heapType)
+                    {
+                        for (uint8_t heapSubType = 0; heapSubType < 3; ++heapSubType)
+                        {
+                            static const WCHAR* const heapSubTypeName[] = {
+                                L" - Buffers",
+                                L" - Textures",
+                                L" - Textures RT/DS",
+                            };
+                            json.BeginString(HeapTypeNames[heapType]);
+                            json.EndString(heapSubTypeName[heapSubType]);
+
+                            json.BeginObject();
+                            writeHeapInfo(m_BlockVectors[heapType + heapSubType], m_CommittedAllocations + heapType, false);
+                            json.EndObject();
+                        }
+                    }
+                }
+            }
+            json.EndObject();
+
+            json.WriteString(L"CustomPools");
+            json.BeginObject();
+            for (uint8_t heapTypeIndex = 0; heapTypeIndex < HEAP_TYPE_COUNT; ++heapTypeIndex)
+            {
+                MutexLockRead mutex(m_PoolsMutex[heapTypeIndex], m_UseMutex);
+                auto* item = m_Pools[heapTypeIndex].Front();
+                if (item != NULL)
+                {
+                    size_t index = 0;
+                    json.WriteString(HeapTypeNames[heapTypeIndex]);
+                    json.BeginArray();
+                    do
+                    {
+                        json.BeginObject();
+                        json.WriteString(L"Name");
+                        json.BeginString();
+                        json.ContinueString(index++);
+                        if (item->GetName())
+                        {
+                            json.ContinueString(L" - ");
+                            json.ContinueString(item->GetName());
+                        }
+                        json.EndString();
+
+                        writeHeapInfo(item->GetBlockVector(), item->GetCommittedAllocationList(), heapTypeIndex == 3);
+                        json.EndObject();
+                    } while ((item = PoolList::GetNext(item)) != NULL);
+                    json.EndArray();
+                }
+            }
+            json.EndObject();
+        }
+        json.EndObject();
+    }
+
+    const size_t length = sb.GetLength();
+    WCHAR* result = AllocateArray<WCHAR>(GetAllocs(), length + 2);
+    result[0] = 0xFEFF;
+    memcpy(result + 1, sb.GetData(), length * sizeof(WCHAR));
+    result[length + 1] = L'\0';
+    *ppStatsString = result;
+}
+
+void AllocatorPimpl::FreeStatsString(WCHAR* pStatsString)
+{
+    D3D12MA_ASSERT(pStatsString);
+    Free(GetAllocs(), pStatsString);
+}
+
+template<typename D3D12_RESOURCE_DESC_T>
+bool AllocatorPimpl::PrefersCommittedAllocation(const D3D12_RESOURCE_DESC_T& resourceDesc)
+{
+    // Intentional. It may change in the future.
+    return false;
+}
+
+HRESULT AllocatorPimpl::AllocateCommittedResource(
+    const CommittedAllocationParameters& committedAllocParams,
+    UINT64 resourceSize, bool withinBudget, void* pPrivateData,
+    const CREATE_RESOURCE_PARAMS& createParams,
+    Allocation** ppAllocation, REFIID riidResource, void** ppvResource)
+{
+    D3D12MA_ASSERT(committedAllocParams.IsValid());
+
+    HRESULT hr;
+    ID3D12Resource* res = NULL;
+    // Allocate aliasing memory with explicit heap
+    if (committedAllocParams.m_CanAlias)
+    {
+        D3D12_RESOURCE_ALLOCATION_INFO heapAllocInfo = {};
+        heapAllocInfo.SizeInBytes = resourceSize;
+        heapAllocInfo.Alignment = HeapFlagsToAlignment(committedAllocParams.m_HeapFlags, m_MsaaAlwaysCommitted);
+        hr = AllocateHeap(committedAllocParams, heapAllocInfo, withinBudget, pPrivateData, ppAllocation);
+        if (SUCCEEDED(hr))
+        {
+            hr = CreatePlacedResourceWrap((*ppAllocation)->GetHeap(), 0, 
+                    createParams, D3D12MA_IID_PPV_ARGS(&res));
+            if (SUCCEEDED(hr))
+            {
+                if (ppvResource != NULL)
+                    hr = res->QueryInterface(riidResource, ppvResource);
+                if (SUCCEEDED(hr))
+                {
+                    (*ppAllocation)->SetResourcePointer(res, createParams.GetBaseResourceDesc());
+                    return hr;
+                }
+                res->Release();
+            }
+            FreeHeapMemory(*ppAllocation);
+        }
+        return hr;
+    }
+
+    if (withinBudget &&
+        !NewAllocationWithinBudget(committedAllocParams.m_HeapProperties.Type, resourceSize))
+    {
+        return E_OUTOFMEMORY;
+    }
+
+    /* D3D12 ERROR:
+     * ID3D12Device::CreateCommittedResource:
+     * When creating a committed resource, D3D12_HEAP_FLAGS must not have either
+     *      D3D12_HEAP_FLAG_DENY_NON_RT_DS_TEXTURES,
+     *      D3D12_HEAP_FLAG_DENY_RT_DS_TEXTURES,
+     *      nor D3D12_HEAP_FLAG_DENY_BUFFERS set.
+     * These flags will be set automatically to correspond with the committed resource type.
+     *
+     * [ STATE_CREATION ERROR #640: CREATERESOURCEANDHEAP_INVALIDHEAPMISCFLAGS]
+    */
+
+#ifdef __ID3D12Device10_INTERFACE_DEFINED__
+    if (createParams.Variant == CREATE_RESOURCE_PARAMS::VARIANT_WITH_LAYOUT)
+    {
+        if (!m_Device10)
+        {
+            return E_NOINTERFACE;
+        }
+        hr = m_Device10->CreateCommittedResource3(
+                &committedAllocParams.m_HeapProperties,
+                committedAllocParams.m_HeapFlags & ~RESOURCE_CLASS_HEAP_FLAGS,
+                createParams.GetResourceDesc1(), createParams.GetInitialLayout(),
+                createParams.GetOptimizedClearValue(), committedAllocParams.m_ProtectedSession,
+                createParams.GetNumCastableFormats(), createParams.GetCastableFormats(),
+                D3D12MA_IID_PPV_ARGS(&res));
+    } else
+#endif
+#ifdef __ID3D12Device8_INTERFACE_DEFINED__
+    if (createParams.Variant == CREATE_RESOURCE_PARAMS::VARIANT_WITH_STATE_AND_DESC1)
+    {
+        if (!m_Device8)
+        {
+            return E_NOINTERFACE;
+        }
+        hr = m_Device8->CreateCommittedResource2(
+                &committedAllocParams.m_HeapProperties,
+                committedAllocParams.m_HeapFlags & ~RESOURCE_CLASS_HEAP_FLAGS,
+                createParams.GetResourceDesc1(), createParams.GetInitialResourceState(),
+                createParams.GetOptimizedClearValue(), committedAllocParams.m_ProtectedSession,
+                D3D12MA_IID_PPV_ARGS(&res));
+    } else
+#endif
+    if (createParams.Variant == CREATE_RESOURCE_PARAMS::VARIANT_WITH_STATE)
+    {
+#ifdef __ID3D12Device4_INTERFACE_DEFINED__
+        if (m_Device4)
+        {
+                hr = m_Device4->CreateCommittedResource1(
+                    &committedAllocParams.m_HeapProperties,
+                    committedAllocParams.m_HeapFlags & ~RESOURCE_CLASS_HEAP_FLAGS,
+                    createParams.GetResourceDesc(), createParams.GetInitialResourceState(),
+                    createParams.GetOptimizedClearValue(), committedAllocParams.m_ProtectedSession,
+                    D3D12MA_IID_PPV_ARGS(&res));
+        }
+        else
+#endif
+        {
+            if (committedAllocParams.m_ProtectedSession == NULL)
+            {
+                hr = m_Device->CreateCommittedResource(
+                    &committedAllocParams.m_HeapProperties,
+                    committedAllocParams.m_HeapFlags & ~RESOURCE_CLASS_HEAP_FLAGS,
+                    createParams.GetResourceDesc(), createParams.GetInitialResourceState(),
+                    createParams.GetOptimizedClearValue(), D3D12MA_IID_PPV_ARGS(&res));
+            }
+            else
+                hr = E_NOINTERFACE;
+        }
+    }
+    else
+    {
+        D3D12MA_ASSERT(0);
+        return E_INVALIDARG;
+    }
+
+    if (SUCCEEDED(hr))
+    {
+        SetResidencyPriority(res, committedAllocParams.m_ResidencyPriority);
+
+        if (ppvResource != NULL)
+        {
+            hr = res->QueryInterface(riidResource, ppvResource);
+        }
+        if (SUCCEEDED(hr))
+        {
+            BOOL wasZeroInitialized = TRUE;
+#if D3D12MA_CREATE_NOT_ZEROED_AVAILABLE
+            if((committedAllocParams.m_HeapFlags & D3D12_HEAP_FLAG_CREATE_NOT_ZEROED) != 0)
+            {
+                wasZeroInitialized = FALSE;
+            }
+#endif
+
+            Allocation* alloc = m_AllocationObjectAllocator.Allocate(
+                this, resourceSize, createParams.GetBaseResourceDesc()->Alignment, wasZeroInitialized);
+            alloc->InitCommitted(committedAllocParams.m_List);
+            alloc->SetResourcePointer(res, createParams.GetBaseResourceDesc());
+            alloc->SetPrivateData(pPrivateData);
+
+            *ppAllocation = alloc;
+
+            committedAllocParams.m_List->Register(alloc);
+
+            const UINT memSegmentGroup = HeapPropertiesToMemorySegmentGroup(committedAllocParams.m_HeapProperties);
+            m_Budget.AddBlock(memSegmentGroup, resourceSize);
+            m_Budget.AddAllocation(memSegmentGroup, resourceSize);
+        }
+        else
+        {
+            res->Release();
+        }
+    }
+    return hr;
+}
+
+HRESULT AllocatorPimpl::AllocateHeap(
+    const CommittedAllocationParameters& committedAllocParams,
+    const D3D12_RESOURCE_ALLOCATION_INFO& allocInfo, bool withinBudget,
+    void* pPrivateData, Allocation** ppAllocation)
+{
+    D3D12MA_ASSERT(committedAllocParams.IsValid());
+
+    *ppAllocation = nullptr;
+
+    if (withinBudget &&
+        !NewAllocationWithinBudget(committedAllocParams.m_HeapProperties.Type, allocInfo.SizeInBytes))
+    {
+        return E_OUTOFMEMORY;
+    }
+
+    D3D12_HEAP_DESC heapDesc = {};
+    heapDesc.SizeInBytes = allocInfo.SizeInBytes;
+    heapDesc.Properties = committedAllocParams.m_HeapProperties;
+    heapDesc.Alignment = allocInfo.Alignment;
+    heapDesc.Flags = committedAllocParams.m_HeapFlags;
+
+    HRESULT hr;
+    ID3D12Heap* heap = nullptr;
+#ifdef __ID3D12Device4_INTERFACE_DEFINED__
+    if (m_Device4)
+        hr = m_Device4->CreateHeap1(&heapDesc, committedAllocParams.m_ProtectedSession, D3D12MA_IID_PPV_ARGS(&heap));
+    else
+#endif
+    {
+        if (committedAllocParams.m_ProtectedSession == NULL)
+            hr = m_Device->CreateHeap(&heapDesc, D3D12MA_IID_PPV_ARGS(&heap));
+        else
+            hr = E_NOINTERFACE;
+    }
+
+    if (SUCCEEDED(hr))
+    {
+        SetResidencyPriority(heap, committedAllocParams.m_ResidencyPriority);
+
+        BOOL wasZeroInitialized = TRUE;
+#if D3D12MA_CREATE_NOT_ZEROED_AVAILABLE
+        if((heapDesc.Flags & D3D12_HEAP_FLAG_CREATE_NOT_ZEROED) != 0)
+        {
+            wasZeroInitialized = FALSE;
+        }
+#endif
+
+        (*ppAllocation) = m_AllocationObjectAllocator.Allocate(this, allocInfo.SizeInBytes, allocInfo.Alignment, wasZeroInitialized);
+        (*ppAllocation)->InitHeap(committedAllocParams.m_List, heap);
+        (*ppAllocation)->SetPrivateData(pPrivateData);
+        committedAllocParams.m_List->Register(*ppAllocation);
+
+        const UINT memSegmentGroup = HeapPropertiesToMemorySegmentGroup(committedAllocParams.m_HeapProperties);
+        m_Budget.AddBlock(memSegmentGroup, allocInfo.SizeInBytes);
+        m_Budget.AddAllocation(memSegmentGroup, allocInfo.SizeInBytes);
+    }
+    return hr;
+}
+
+template<typename D3D12_RESOURCE_DESC_T>
+HRESULT AllocatorPimpl::CalcAllocationParams(const ALLOCATION_DESC& allocDesc, UINT64 allocSize,
+    const D3D12_RESOURCE_DESC_T* resDesc,
+    BlockVector*& outBlockVector, CommittedAllocationParameters& outCommittedAllocationParams, bool& outPreferCommitted)
+{
+    outBlockVector = NULL;
+    outCommittedAllocationParams = CommittedAllocationParameters();
+    outPreferCommitted = false;
+
+    bool msaaAlwaysCommitted;
+    if (allocDesc.CustomPool != NULL)
+    {
+        PoolPimpl* const pool = allocDesc.CustomPool->m_Pimpl;
+
+        msaaAlwaysCommitted = pool->GetBlockVector()->DeniesMsaaTextures();
+        outBlockVector = pool->GetBlockVector();
+
+        const auto& desc = pool->GetDesc();
+        outCommittedAllocationParams.m_ProtectedSession = desc.pProtectedSession;
+        outCommittedAllocationParams.m_HeapProperties = desc.HeapProperties;
+        outCommittedAllocationParams.m_HeapFlags = desc.HeapFlags;
+        outCommittedAllocationParams.m_List = pool->GetCommittedAllocationList();
+        outCommittedAllocationParams.m_ResidencyPriority = pool->GetDesc().ResidencyPriority;
+    }
+    else
+    {
+        if (!IsHeapTypeStandard(allocDesc.HeapType))
+        {
+            return E_INVALIDARG;
+        }
+        msaaAlwaysCommitted = m_MsaaAlwaysCommitted;
+
+        outCommittedAllocationParams.m_HeapProperties = StandardHeapTypeToHeapProperties(allocDesc.HeapType);
+        outCommittedAllocationParams.m_HeapFlags = allocDesc.ExtraHeapFlags;
+        outCommittedAllocationParams.m_List = &m_CommittedAllocations[HeapTypeToIndex(allocDesc.HeapType)];
+        // outCommittedAllocationParams.m_ResidencyPriority intentionally left with default value.
+
+        const ResourceClass resourceClass = (resDesc != NULL) ?
+            ResourceDescToResourceClass(*resDesc) : HeapFlagsToResourceClass(allocDesc.ExtraHeapFlags);
+        const UINT defaultPoolIndex = CalcDefaultPoolIndex(allocDesc, resourceClass);
+        if (defaultPoolIndex != UINT32_MAX)
+        {
+            outBlockVector = m_BlockVectors[defaultPoolIndex];
+            const UINT64 preferredBlockSize = outBlockVector->GetPreferredBlockSize();
+            if (allocSize > preferredBlockSize)
+            {
+                outBlockVector = NULL;
+            }
+            else if (allocSize > preferredBlockSize / 2)
+            {
+                // Heuristics: Allocate committed memory if requested size if greater than half of preferred block size.
+                outPreferCommitted = true;
+            }
+        }
+
+        const D3D12_HEAP_FLAGS extraHeapFlags = allocDesc.ExtraHeapFlags & ~RESOURCE_CLASS_HEAP_FLAGS;
+        if (outBlockVector != NULL && extraHeapFlags != 0)
+        {
+            outBlockVector = NULL;
+        }
+    }
+
+    if ((allocDesc.Flags & ALLOCATION_FLAG_COMMITTED) != 0 ||
+        m_AlwaysCommitted)
+    {
+        outBlockVector = NULL;
+    }
+    if ((allocDesc.Flags & ALLOCATION_FLAG_NEVER_ALLOCATE) != 0)
+    {
+        outCommittedAllocationParams.m_List = NULL;
+    }
+    outCommittedAllocationParams.m_CanAlias = allocDesc.Flags & ALLOCATION_FLAG_CAN_ALIAS;
+
+    if (resDesc != NULL)
+    {
+        if (resDesc->SampleDesc.Count > 1 && msaaAlwaysCommitted)
+            outBlockVector = NULL;
+        if (!outPreferCommitted && PrefersCommittedAllocation(*resDesc))
+            outPreferCommitted = true;
+    }
+
+    return (outBlockVector != NULL || outCommittedAllocationParams.m_List != NULL) ? S_OK : E_INVALIDARG;
+}
+
+UINT AllocatorPimpl::CalcDefaultPoolIndex(const ALLOCATION_DESC& allocDesc, ResourceClass resourceClass) const
+{
+    D3D12_HEAP_FLAGS extraHeapFlags = allocDesc.ExtraHeapFlags & ~RESOURCE_CLASS_HEAP_FLAGS;
+
+#if D3D12MA_CREATE_NOT_ZEROED_AVAILABLE
+    // If allocator was created with ALLOCATOR_FLAG_DEFAULT_POOLS_NOT_ZEROED, also ignore
+    // D3D12_HEAP_FLAG_CREATE_NOT_ZEROED.
+    if(m_DefaultPoolsNotZeroed)
+    {
+        extraHeapFlags &= ~D3D12_HEAP_FLAG_CREATE_NOT_ZEROED;
+    }
+#endif
+
+    if (extraHeapFlags != 0)
+    {
+        return UINT32_MAX;
+    }
+
+    UINT poolIndex = UINT_MAX;
+    switch (allocDesc.HeapType)
+    {
+    case D3D12_HEAP_TYPE_DEFAULT:  poolIndex = 0; break;
+    case D3D12_HEAP_TYPE_UPLOAD:   poolIndex = 1; break;
+    case D3D12_HEAP_TYPE_READBACK: poolIndex = 2; break;
+    default: D3D12MA_ASSERT(0);
+    }
+
+    if (SupportsResourceHeapTier2())
+        return poolIndex;
+    else
+    {
+        switch (resourceClass)
+        {
+        case ResourceClass::Buffer:
+            return poolIndex * 3;
+        case ResourceClass::Non_RT_DS_Texture:
+            return poolIndex * 3 + 1;
+        case ResourceClass::RT_DS_Texture:
+            return poolIndex * 3 + 2;
+        default:
+            return UINT32_MAX;
+        }
+    }
+}
+
+void AllocatorPimpl::CalcDefaultPoolParams(D3D12_HEAP_TYPE& outHeapType, D3D12_HEAP_FLAGS& outHeapFlags, UINT index) const
+{
+    outHeapType = D3D12_HEAP_TYPE_DEFAULT;
+    outHeapFlags = D3D12_HEAP_FLAG_NONE;
+
+    if (!SupportsResourceHeapTier2())
+    {
+        switch (index % 3)
+        {
+        case 0:
+            outHeapFlags = D3D12_HEAP_FLAG_DENY_RT_DS_TEXTURES | D3D12_HEAP_FLAG_DENY_NON_RT_DS_TEXTURES;
+            break;
+        case 1:
+            outHeapFlags = D3D12_HEAP_FLAG_DENY_BUFFERS | D3D12_HEAP_FLAG_DENY_RT_DS_TEXTURES;
+            break;
+        case 2:
+            outHeapFlags = D3D12_HEAP_FLAG_DENY_BUFFERS | D3D12_HEAP_FLAG_DENY_NON_RT_DS_TEXTURES;
+            break;
+        }
+
+        index /= 3;
+    }
+
+    switch (index)
+    {
+    case 0:
+        outHeapType = D3D12_HEAP_TYPE_DEFAULT;
+        break;
+    case 1:
+        outHeapType = D3D12_HEAP_TYPE_UPLOAD;
+        break;
+    case 2:
+        outHeapType = D3D12_HEAP_TYPE_READBACK;
+        break;
+    default:
+        D3D12MA_ASSERT(0);
+    }
+}
+
+void AllocatorPimpl::RegisterPool(Pool* pool, D3D12_HEAP_TYPE heapType)
+{
+    const UINT heapTypeIndex = HeapTypeToIndex(heapType);
+
+    MutexLockWrite lock(m_PoolsMutex[heapTypeIndex], m_UseMutex);
+    m_Pools[heapTypeIndex].PushBack(pool->m_Pimpl);
+}
+
+void AllocatorPimpl::UnregisterPool(Pool* pool, D3D12_HEAP_TYPE heapType)
+{
+    const UINT heapTypeIndex = HeapTypeToIndex(heapType);
+
+    MutexLockWrite lock(m_PoolsMutex[heapTypeIndex], m_UseMutex);
+    m_Pools[heapTypeIndex].Remove(pool->m_Pimpl);
+}
+
+HRESULT AllocatorPimpl::UpdateD3D12Budget()
+{
+#if D3D12MA_DXGI_1_4
+    if (m_Adapter3)
+        return m_Budget.UpdateBudget(m_Adapter3, m_UseMutex);
+    else
+        return E_NOINTERFACE;
+#else
+    return S_OK;
+#endif
+}
+
+D3D12_RESOURCE_ALLOCATION_INFO AllocatorPimpl::GetResourceAllocationInfoNative(const D3D12_RESOURCE_DESC& resourceDesc) const
+{
+    return m_Device->GetResourceAllocationInfo(0, 1, &resourceDesc);
+}
+
+#ifdef __ID3D12Device8_INTERFACE_DEFINED__
+D3D12_RESOURCE_ALLOCATION_INFO AllocatorPimpl::GetResourceAllocationInfoNative(const D3D12_RESOURCE_DESC1& resourceDesc) const
+{
+    D3D12MA_ASSERT(m_Device8 != NULL);
+    D3D12_RESOURCE_ALLOCATION_INFO1 info1Unused;
+    return m_Device8->GetResourceAllocationInfo2(0, 1, &resourceDesc, &info1Unused);
+}
+#endif // #ifdef __ID3D12Device8_INTERFACE_DEFINED__
+
+template<typename D3D12_RESOURCE_DESC_T>
+D3D12_RESOURCE_ALLOCATION_INFO AllocatorPimpl::GetResourceAllocationInfo(D3D12_RESOURCE_DESC_T& inOutResourceDesc) const
+{
+    /* Optional optimization: Microsoft documentation says:
+    https://docs.microsoft.com/en-us/windows/win32/api/d3d12/nf-d3d12-id3d12device-getresourceallocationinfo
+
+    Your application can forgo using GetResourceAllocationInfo for buffer resources
+    (D3D12_RESOURCE_DIMENSION_BUFFER). Buffers have the same size on all adapters,
+    which is merely the smallest multiple of 64KB that's greater or equal to
+    D3D12_RESOURCE_DESC::Width.
+    */
+    if (inOutResourceDesc.Alignment == 0 &&
+        inOutResourceDesc.Dimension == D3D12_RESOURCE_DIMENSION_BUFFER)
+    {
+        return {
+            AlignUp<UINT64>(inOutResourceDesc.Width, D3D12_DEFAULT_RESOURCE_PLACEMENT_ALIGNMENT), // SizeInBytes
+            D3D12_DEFAULT_RESOURCE_PLACEMENT_ALIGNMENT }; // Alignment
+    }
+
+#if D3D12MA_USE_SMALL_RESOURCE_PLACEMENT_ALIGNMENT
+    if (inOutResourceDesc.Alignment == 0 &&
+        inOutResourceDesc.Dimension == D3D12_RESOURCE_DIMENSION_TEXTURE2D &&
+        (inOutResourceDesc.Flags & (D3D12_RESOURCE_FLAG_ALLOW_RENDER_TARGET | D3D12_RESOURCE_FLAG_ALLOW_DEPTH_STENCIL)) == 0
+#if D3D12MA_USE_SMALL_RESOURCE_PLACEMENT_ALIGNMENT == 1
+        && CanUseSmallAlignment(inOutResourceDesc)
+#endif
+        )
+    {
+        /*
+        The algorithm here is based on Microsoft sample: "Small Resources Sample"
+        https://github.com/microsoft/DirectX-Graphics-Samples/tree/master/Samples/Desktop/D3D12SmallResources
+        */
+        const UINT64 smallAlignmentToTry = inOutResourceDesc.SampleDesc.Count > 1 ?
+            D3D12_SMALL_MSAA_RESOURCE_PLACEMENT_ALIGNMENT :
+            D3D12_SMALL_RESOURCE_PLACEMENT_ALIGNMENT;
+        inOutResourceDesc.Alignment = smallAlignmentToTry;
+        const D3D12_RESOURCE_ALLOCATION_INFO smallAllocInfo = GetResourceAllocationInfoNative(inOutResourceDesc);
+        // Check if alignment requested has been granted.
+        if (smallAllocInfo.Alignment == smallAlignmentToTry)
+        {
+            return smallAllocInfo;
+        }
+        inOutResourceDesc.Alignment = 0; // Restore original
+    }
+#endif // #if D3D12MA_USE_SMALL_RESOURCE_PLACEMENT_ALIGNMENT
+
+    return GetResourceAllocationInfoNative(inOutResourceDesc);
+}
+
+bool AllocatorPimpl::NewAllocationWithinBudget(D3D12_HEAP_TYPE heapType, UINT64 size)
+{
+    Budget budget = {};
+    GetBudgetForHeapType(budget, heapType);
+    return budget.UsageBytes + size <= budget.BudgetBytes;
+}
+
+void AllocatorPimpl::WriteBudgetToJson(JsonWriter& json, const Budget& budget)
+{
+    json.BeginObject();
+    {
+        json.WriteString(L"BudgetBytes");
+        json.WriteNumber(budget.BudgetBytes);
+        json.WriteString(L"UsageBytes");
+        json.WriteNumber(budget.UsageBytes);
+    }
+    json.EndObject();
+}
+
+#endif // _D3D12MA_ALLOCATOR_PIMPL
+#endif // _D3D12MA_ALLOCATOR_PIMPL
+
+#ifndef _D3D12MA_VIRTUAL_BLOCK_PIMPL
+class VirtualBlockPimpl
+{
+public:
+    const ALLOCATION_CALLBACKS m_AllocationCallbacks;
+    const UINT64 m_Size;
+    BlockMetadata* m_Metadata;
+
+    VirtualBlockPimpl(const ALLOCATION_CALLBACKS& allocationCallbacks, const VIRTUAL_BLOCK_DESC& desc);
+    ~VirtualBlockPimpl();
+};
+
+#ifndef _D3D12MA_VIRTUAL_BLOCK_PIMPL_FUNCTIONS
+VirtualBlockPimpl::VirtualBlockPimpl(const ALLOCATION_CALLBACKS& allocationCallbacks, const VIRTUAL_BLOCK_DESC& desc)
+    : m_AllocationCallbacks(allocationCallbacks), m_Size(desc.Size)
+{
+    switch (desc.Flags & VIRTUAL_BLOCK_FLAG_ALGORITHM_MASK)
+    {
+    case VIRTUAL_BLOCK_FLAG_ALGORITHM_LINEAR:
+        m_Metadata = D3D12MA_NEW(allocationCallbacks, BlockMetadata_Linear)(&m_AllocationCallbacks, true);
+        break;
+    default:
+        D3D12MA_ASSERT(0);
+    case 0:
+        m_Metadata = D3D12MA_NEW(allocationCallbacks, BlockMetadata_TLSF)(&m_AllocationCallbacks, true);
+        break;
+    }
+    m_Metadata->Init(m_Size);
+}
+
+VirtualBlockPimpl::~VirtualBlockPimpl()
+{
+    D3D12MA_DELETE(m_AllocationCallbacks, m_Metadata);
+}
+#endif // _D3D12MA_VIRTUAL_BLOCK_PIMPL_FUNCTIONS
+#endif // _D3D12MA_VIRTUAL_BLOCK_PIMPL
+
+
+#ifndef _D3D12MA_MEMORY_BLOCK_FUNCTIONS
+MemoryBlock::MemoryBlock(
+    AllocatorPimpl* allocator,
+    const D3D12_HEAP_PROPERTIES& heapProps,
+    D3D12_HEAP_FLAGS heapFlags,
+    UINT64 size,
+    UINT id)
+    : m_Allocator(allocator),
+    m_HeapProps(heapProps),
+    m_HeapFlags(heapFlags),
+    m_Size(size),
+    m_Id(id) {}
+
+MemoryBlock::~MemoryBlock()
+{
+    if (m_Heap)
+    {
+        m_Heap->Release();
+        m_Allocator->m_Budget.RemoveBlock(
+            m_Allocator->HeapPropertiesToMemorySegmentGroup(m_HeapProps), m_Size);
+    }
+}
+
+HRESULT MemoryBlock::Init(ID3D12ProtectedResourceSession* pProtectedSession, bool denyMsaaTextures)
+{
+    D3D12MA_ASSERT(m_Heap == NULL && m_Size > 0);
+
+    D3D12_HEAP_DESC heapDesc = {};
+    heapDesc.SizeInBytes = m_Size;
+    heapDesc.Properties = m_HeapProps;
+    heapDesc.Alignment = HeapFlagsToAlignment(m_HeapFlags, denyMsaaTextures);
+    heapDesc.Flags = m_HeapFlags;
+
+    HRESULT hr;
+#ifdef __ID3D12Device4_INTERFACE_DEFINED__
+    ID3D12Device4* const device4 = m_Allocator->GetDevice4();
+    if (device4)
+        hr = m_Allocator->GetDevice4()->CreateHeap1(&heapDesc, pProtectedSession, D3D12MA_IID_PPV_ARGS(&m_Heap));
+    else
+#endif
+    {
+        if (pProtectedSession == NULL)
+            hr = m_Allocator->GetDevice()->CreateHeap(&heapDesc, D3D12MA_IID_PPV_ARGS(&m_Heap));
+        else
+            hr = E_NOINTERFACE;
+    }
+
+    if (SUCCEEDED(hr))
+    {
+        m_Allocator->m_Budget.AddBlock(
+            m_Allocator->HeapPropertiesToMemorySegmentGroup(m_HeapProps), m_Size);
+    }
+    return hr;
+}
+#endif // _D3D12MA_MEMORY_BLOCK_FUNCTIONS
+
+#ifndef _D3D12MA_NORMAL_BLOCK_FUNCTIONS
+NormalBlock::NormalBlock(
+    AllocatorPimpl* allocator,
+    BlockVector* blockVector,
+    const D3D12_HEAP_PROPERTIES& heapProps,
+    D3D12_HEAP_FLAGS heapFlags,
+    UINT64 size,
+    UINT id)
+    : MemoryBlock(allocator, heapProps, heapFlags, size, id),
+    m_pMetadata(NULL),
+    m_BlockVector(blockVector) {}
+
+NormalBlock::~NormalBlock()
+{
+    if (m_pMetadata != NULL)
+    {
+        // Define macro D3D12MA_DEBUG_LOG to receive the list of the unfreed allocations.
+        if (!m_pMetadata->IsEmpty())
+            m_pMetadata->DebugLogAllAllocations();
+
+        // THIS IS THE MOST IMPORTANT ASSERT IN THE ENTIRE LIBRARY!
+        // Hitting it means you have some memory leak - unreleased Allocation objects.
+        D3D12MA_ASSERT(m_pMetadata->IsEmpty() && "Some allocations were not freed before destruction of this memory block!");
+
+        D3D12MA_DELETE(m_Allocator->GetAllocs(), m_pMetadata);
+    }
+}
+
+HRESULT NormalBlock::Init(UINT32 algorithm, ID3D12ProtectedResourceSession* pProtectedSession, bool denyMsaaTextures)
+{
+    HRESULT hr = MemoryBlock::Init(pProtectedSession, denyMsaaTextures);
+    if (FAILED(hr))
+    {
+        return hr;
+    }
+
+    switch (algorithm)
+    {
+    case POOL_FLAG_ALGORITHM_LINEAR:
+        m_pMetadata = D3D12MA_NEW(m_Allocator->GetAllocs(), BlockMetadata_Linear)(&m_Allocator->GetAllocs(), false);
+        break;
+    default:
+        D3D12MA_ASSERT(0);
+    case 0:
+        m_pMetadata = D3D12MA_NEW(m_Allocator->GetAllocs(), BlockMetadata_TLSF)(&m_Allocator->GetAllocs(), false);
+        break;
+    }
+    m_pMetadata->Init(m_Size);
+
+    return hr;
+}
+
+bool NormalBlock::Validate() const
+{
+    D3D12MA_VALIDATE(GetHeap() &&
+        m_pMetadata &&
+        m_pMetadata->GetSize() != 0 &&
+        m_pMetadata->GetSize() == GetSize());
+    return m_pMetadata->Validate();
+}
+#endif // _D3D12MA_NORMAL_BLOCK_FUNCTIONS
+
+#ifndef _D3D12MA_COMMITTED_ALLOCATION_LIST_FUNCTIONS
+void CommittedAllocationList::Init(bool useMutex, D3D12_HEAP_TYPE heapType, PoolPimpl* pool)
+{
+    m_UseMutex = useMutex;
+    m_HeapType = heapType;
+    m_Pool = pool;
+}
+
+CommittedAllocationList::~CommittedAllocationList()
+{
+    if (!m_AllocationList.IsEmpty())
+    {
+        D3D12MA_ASSERT(0 && "Unfreed committed allocations found!");
+    }
+}
+
+UINT CommittedAllocationList::GetMemorySegmentGroup(AllocatorPimpl* allocator) const
+{
+    if (m_Pool)
+        return allocator->HeapPropertiesToMemorySegmentGroup(m_Pool->GetDesc().HeapProperties);
+    else
+        return allocator->StandardHeapTypeToMemorySegmentGroup(m_HeapType);
+}
+
+void CommittedAllocationList::AddStatistics(Statistics& inoutStats)
+{
+    MutexLockRead lock(m_Mutex, m_UseMutex);
+
+    for (Allocation* alloc = m_AllocationList.Front();
+        alloc != NULL; alloc = m_AllocationList.GetNext(alloc))
+    {
+        const UINT64 size = alloc->GetSize();
+        inoutStats.BlockCount++;
+        inoutStats.AllocationCount++;
+        inoutStats.BlockBytes += size;
+        inoutStats.AllocationBytes += size;
+    }
+}
+
+void CommittedAllocationList::AddDetailedStatistics(DetailedStatistics& inoutStats)
+{
+    MutexLockRead lock(m_Mutex, m_UseMutex);
+
+    for (Allocation* alloc = m_AllocationList.Front();
+        alloc != NULL; alloc = m_AllocationList.GetNext(alloc))
+    {
+        const UINT64 size = alloc->GetSize();
+        inoutStats.Stats.BlockCount++;
+        inoutStats.Stats.BlockBytes += size;
+        AddDetailedStatisticsAllocation(inoutStats, size);
+    }
+}
+
+void CommittedAllocationList::BuildStatsString(JsonWriter& json)
+{
+    MutexLockRead lock(m_Mutex, m_UseMutex);
+
+    for (Allocation* alloc = m_AllocationList.Front();
+        alloc != NULL; alloc = m_AllocationList.GetNext(alloc))
+    {
+        json.BeginObject(true);
+        json.AddAllocationToObject(*alloc);
+        json.EndObject();
+    }
+}
+
+void CommittedAllocationList::Register(Allocation* alloc)
+{
+    MutexLockWrite lock(m_Mutex, m_UseMutex);
+    m_AllocationList.PushBack(alloc);
+}
+
+void CommittedAllocationList::Unregister(Allocation* alloc)
+{
+    MutexLockWrite lock(m_Mutex, m_UseMutex);
+    m_AllocationList.Remove(alloc);
+}
+#endif // _D3D12MA_COMMITTED_ALLOCATION_LIST_FUNCTIONS
+
+#ifndef _D3D12MA_BLOCK_VECTOR_FUNCTIONS
+BlockVector::BlockVector(
+    AllocatorPimpl* hAllocator,
+    const D3D12_HEAP_PROPERTIES& heapProps,
+    D3D12_HEAP_FLAGS heapFlags,
+    UINT64 preferredBlockSize,
+    size_t minBlockCount,
+    size_t maxBlockCount,
+    bool explicitBlockSize,
+    UINT64 minAllocationAlignment,
+    UINT32 algorithm,
+    bool denyMsaaTextures,
+    ID3D12ProtectedResourceSession* pProtectedSession,
+    D3D12_RESIDENCY_PRIORITY residencyPriority)
+    : m_hAllocator(hAllocator),
+    m_HeapProps(heapProps),
+    m_HeapFlags(heapFlags),
+    m_PreferredBlockSize(preferredBlockSize),
+    m_MinBlockCount(minBlockCount),
+    m_MaxBlockCount(maxBlockCount),
+    m_ExplicitBlockSize(explicitBlockSize),
+    m_MinAllocationAlignment(minAllocationAlignment),
+    m_Algorithm(algorithm),
+    m_DenyMsaaTextures(denyMsaaTextures),
+    m_ProtectedSession(pProtectedSession),
+    m_ResidencyPriority(residencyPriority),
+    m_HasEmptyBlock(false),
+    m_Blocks(hAllocator->GetAllocs()),
+    m_NextBlockId(0) {}
+
+BlockVector::~BlockVector()
+{
+    for (size_t i = m_Blocks.size(); i--; )
+    {
+        D3D12MA_DELETE(m_hAllocator->GetAllocs(), m_Blocks[i]);
+    }
+}
+
+HRESULT BlockVector::CreateMinBlocks()
+{
+    for (size_t i = 0; i < m_MinBlockCount; ++i)
+    {
+        HRESULT hr = CreateBlock(m_PreferredBlockSize, NULL);
+        if (FAILED(hr))
+        {
+            return hr;
+        }
+    }
+    return S_OK;
+}
+
+bool BlockVector::IsEmpty()
+{
+    MutexLockRead lock(m_Mutex, m_hAllocator->UseMutex());
+    return m_Blocks.empty();
+}
+
+HRESULT BlockVector::Allocate(
+    UINT64 size,
+    UINT64 alignment,
+    const ALLOCATION_DESC& allocDesc,
+    size_t allocationCount,
+    Allocation** pAllocations)
+{
+    size_t allocIndex;
+    HRESULT hr = S_OK;
+
+    {
+        MutexLockWrite lock(m_Mutex, m_hAllocator->UseMutex());
+        for (allocIndex = 0; allocIndex < allocationCount; ++allocIndex)
+        {
+            hr = AllocatePage(
+                size,
+                alignment,
+                allocDesc,
+                pAllocations + allocIndex);
+            if (FAILED(hr))
+            {
+                break;
+            }
+        }
+    }
+
+    if (FAILED(hr))
+    {
+        // Free all already created allocations.
+        while (allocIndex--)
+        {
+            Free(pAllocations[allocIndex]);
+        }
+        ZeroMemory(pAllocations, sizeof(Allocation*) * allocationCount);
+    }
+
+    return hr;
+}
+
+void BlockVector::Free(Allocation* hAllocation)
+{
+    NormalBlock* pBlockToDelete = NULL;
+
+    bool budgetExceeded = false;
+    if (IsHeapTypeStandard(m_HeapProps.Type))
+    {
+        Budget budget = {};
+        m_hAllocator->GetBudgetForHeapType(budget, m_HeapProps.Type);
+        budgetExceeded = budget.UsageBytes >= budget.BudgetBytes;
+    }
+
+    // Scope for lock.
+    {
+        MutexLockWrite lock(m_Mutex, m_hAllocator->UseMutex());
+
+        NormalBlock* pBlock = hAllocation->m_Placed.block;
+
+        pBlock->m_pMetadata->Free(hAllocation->GetAllocHandle());
+        D3D12MA_HEAVY_ASSERT(pBlock->Validate());
+
+        const size_t blockCount = m_Blocks.size();
+        // pBlock became empty after this deallocation.
+        if (pBlock->m_pMetadata->IsEmpty())
+        {
+            // Already has empty Allocation. We don't want to have two, so delete this one.
+            if ((m_HasEmptyBlock || budgetExceeded) &&
+                blockCount > m_MinBlockCount)
+            {
+                pBlockToDelete = pBlock;
+                Remove(pBlock);
+            }
+            // We now have first empty block.
+            else
+            {
+                m_HasEmptyBlock = true;
+            }
+        }
+        // pBlock didn't become empty, but we have another empty block - find and free that one.
+        // (This is optional, heuristics.)
+        else if (m_HasEmptyBlock && blockCount > m_MinBlockCount)
+        {
+            NormalBlock* pLastBlock = m_Blocks.back();
+            if (pLastBlock->m_pMetadata->IsEmpty())
+            {
+                pBlockToDelete = pLastBlock;
+                m_Blocks.pop_back();
+                m_HasEmptyBlock = false;
+            }
+        }
+
+        IncrementallySortBlocks();
+    }
+
+    // Destruction of a free Allocation. Deferred until this point, outside of mutex
+    // lock, for performance reason.
+    if (pBlockToDelete != NULL)
+    {
+        D3D12MA_DELETE(m_hAllocator->GetAllocs(), pBlockToDelete);
+    }
+}
+
+HRESULT BlockVector::CreateResource(
+    UINT64 size,
+    UINT64 alignment,
+    const ALLOCATION_DESC& allocDesc,
+    const CREATE_RESOURCE_PARAMS& createParams,
+    Allocation** ppAllocation,
+    REFIID riidResource,
+    void** ppvResource)
+{
+    HRESULT hr = Allocate(size, alignment, allocDesc, 1, ppAllocation);
+    if (SUCCEEDED(hr))
+    {
+        ID3D12Resource* res = NULL;
+        hr = m_hAllocator->CreatePlacedResourceWrap(
+            (*ppAllocation)->m_Placed.block->GetHeap(),
+            (*ppAllocation)->GetOffset(),
+            createParams,
+            D3D12MA_IID_PPV_ARGS(&res));
+        if (SUCCEEDED(hr))
+        {
+            if (ppvResource != NULL)
+            {
+                hr = res->QueryInterface(riidResource, ppvResource);
+            }
+            if (SUCCEEDED(hr))
+            {
+                (*ppAllocation)->SetResourcePointer(res, createParams.GetBaseResourceDesc());
+            }
+            else
+            {
+                res->Release();
+                SAFE_RELEASE(*ppAllocation);
+            }
+        }
+        else
+        {
+            SAFE_RELEASE(*ppAllocation);
+        }
+    }
+    return hr;
+}
+
+void BlockVector::AddStatistics(Statistics& inoutStats)
+{
+    MutexLockRead lock(m_Mutex, m_hAllocator->UseMutex());
+
+    for (size_t i = 0; i < m_Blocks.size(); ++i)
+    {
+        const NormalBlock* const pBlock = m_Blocks[i];
+        D3D12MA_ASSERT(pBlock);
+        D3D12MA_HEAVY_ASSERT(pBlock->Validate());
+        pBlock->m_pMetadata->AddStatistics(inoutStats);
+    }
+}
+
+void BlockVector::AddDetailedStatistics(DetailedStatistics& inoutStats)
+{
+    MutexLockRead lock(m_Mutex, m_hAllocator->UseMutex());
+
+    for (size_t i = 0; i < m_Blocks.size(); ++i)
+    {
+        const NormalBlock* const pBlock = m_Blocks[i];
+        D3D12MA_ASSERT(pBlock);
+        D3D12MA_HEAVY_ASSERT(pBlock->Validate());
+        pBlock->m_pMetadata->AddDetailedStatistics(inoutStats);
+    }
+}
+
+void BlockVector::WriteBlockInfoToJson(JsonWriter& json)
+{
+    MutexLockRead lock(m_Mutex, m_hAllocator->UseMutex());
+
+    json.BeginObject();
+
+    for (size_t i = 0, count = m_Blocks.size(); i < count; ++i)
+    {
+        const NormalBlock* const pBlock = m_Blocks[i];
+        D3D12MA_ASSERT(pBlock);
+        D3D12MA_HEAVY_ASSERT(pBlock->Validate());
+        json.BeginString();
+        json.ContinueString(pBlock->GetId());
+        json.EndString();
+
+        json.BeginObject();
+        pBlock->m_pMetadata->WriteAllocationInfoToJson(json);
+        json.EndObject();
+    }
+
+    json.EndObject();
+}
+
+UINT64 BlockVector::CalcSumBlockSize() const
+{
+    UINT64 result = 0;
+    for (size_t i = m_Blocks.size(); i--; )
+    {
+        result += m_Blocks[i]->m_pMetadata->GetSize();
+    }
+    return result;
+}
+
+UINT64 BlockVector::CalcMaxBlockSize() const
+{
+    UINT64 result = 0;
+    for (size_t i = m_Blocks.size(); i--; )
+    {
+        result = D3D12MA_MAX(result, m_Blocks[i]->m_pMetadata->GetSize());
+        if (result >= m_PreferredBlockSize)
+        {
+            break;
+        }
+    }
+    return result;
+}
+
+void BlockVector::Remove(NormalBlock* pBlock)
+{
+    for (size_t blockIndex = 0; blockIndex < m_Blocks.size(); ++blockIndex)
+    {
+        if (m_Blocks[blockIndex] == pBlock)
+        {
+            m_Blocks.remove(blockIndex);
+            return;
+        }
+    }
+    D3D12MA_ASSERT(0);
+}
+
+void BlockVector::IncrementallySortBlocks()
+{
+    if (!m_IncrementalSort)
+        return;
+    // Bubble sort only until first swap.
+    for (size_t i = 1; i < m_Blocks.size(); ++i)
+    {
+        if (m_Blocks[i - 1]->m_pMetadata->GetSumFreeSize() > m_Blocks[i]->m_pMetadata->GetSumFreeSize())
+        {
+            D3D12MA_SWAP(m_Blocks[i - 1], m_Blocks[i]);
+            return;
+        }
+    }
+}
+
+void BlockVector::SortByFreeSize()
+{
+    D3D12MA_SORT(m_Blocks.begin(), m_Blocks.end(),
+        [](auto* b1, auto* b2)
+        {
+            return b1->m_pMetadata->GetSumFreeSize() < b2->m_pMetadata->GetSumFreeSize();
+        });
+}
+
+HRESULT BlockVector::AllocatePage(
+    UINT64 size,
+    UINT64 alignment,
+    const ALLOCATION_DESC& allocDesc,
+    Allocation** pAllocation)
+{
+    // Early reject: requested allocation size is larger that maximum block size for this block vector.
+    if (size + D3D12MA_DEBUG_MARGIN > m_PreferredBlockSize)
+    {
+        return E_OUTOFMEMORY;
+    }
+
+    UINT64 freeMemory = UINT64_MAX;
+    if (IsHeapTypeStandard(m_HeapProps.Type))
+    {
+        Budget budget = {};
+        m_hAllocator->GetBudgetForHeapType(budget, m_HeapProps.Type);
+        freeMemory = (budget.UsageBytes < budget.BudgetBytes) ? (budget.BudgetBytes - budget.UsageBytes) : 0;
+    }
+
+    const bool canCreateNewBlock =
+        ((allocDesc.Flags & ALLOCATION_FLAG_NEVER_ALLOCATE) == 0) &&
+        (m_Blocks.size() < m_MaxBlockCount) &&
+        // Even if we don't have to stay within budget with this allocation, when the
+        // budget would be exceeded, we don't want to allocate new blocks, but always
+        // create resources as committed.
+        freeMemory >= size;
+
+    // 1. Search existing allocations
+    {
+        // Forward order in m_Blocks - prefer blocks with smallest amount of free space.
+        for (size_t blockIndex = 0; blockIndex < m_Blocks.size(); ++blockIndex)
+        {
+            NormalBlock* const pCurrBlock = m_Blocks[blockIndex];
+            D3D12MA_ASSERT(pCurrBlock);
+            HRESULT hr = AllocateFromBlock(
+                pCurrBlock,
+                size,
+                alignment,
+                allocDesc.Flags,
+                allocDesc.pPrivateData,
+                allocDesc.Flags & ALLOCATION_FLAG_STRATEGY_MASK,
+                pAllocation);
+            if (SUCCEEDED(hr))
+            {
+                return hr;
+            }
+        }
+    }
+
+    // 2. Try to create new block.
+    if (canCreateNewBlock)
+    {
+        // Calculate optimal size for new block.
+        UINT64 newBlockSize = m_PreferredBlockSize;
+        UINT newBlockSizeShift = 0;
+
+        if (!m_ExplicitBlockSize)
+        {
+            // Allocate 1/8, 1/4, 1/2 as first blocks.
+            const UINT64 maxExistingBlockSize = CalcMaxBlockSize();
+            for (UINT i = 0; i < NEW_BLOCK_SIZE_SHIFT_MAX; ++i)
+            {
+                const UINT64 smallerNewBlockSize = newBlockSize / 2;
+                if (smallerNewBlockSize > maxExistingBlockSize && smallerNewBlockSize >= size * 2)
+                {
+                    newBlockSize = smallerNewBlockSize;
+                    ++newBlockSizeShift;
+                }
+                else
+                {
+                    break;
+                }
+            }
+        }
+
+        size_t newBlockIndex = 0;
+        HRESULT hr = newBlockSize <= freeMemory ?
+            CreateBlock(newBlockSize, &newBlockIndex) : E_OUTOFMEMORY;
+        // Allocation of this size failed? Try 1/2, 1/4, 1/8 of m_PreferredBlockSize.
+        if (!m_ExplicitBlockSize)
+        {
+            while (FAILED(hr) && newBlockSizeShift < NEW_BLOCK_SIZE_SHIFT_MAX)
+            {
+                const UINT64 smallerNewBlockSize = newBlockSize / 2;
+                if (smallerNewBlockSize >= size)
+                {
+                    newBlockSize = smallerNewBlockSize;
+                    ++newBlockSizeShift;
+                    hr = newBlockSize <= freeMemory ?
+                        CreateBlock(newBlockSize, &newBlockIndex) : E_OUTOFMEMORY;
+                }
+                else
+                {
+                    break;
+                }
+            }
+        }
+
+        if (SUCCEEDED(hr))
+        {
+            NormalBlock* const pBlock = m_Blocks[newBlockIndex];
+            D3D12MA_ASSERT(pBlock->m_pMetadata->GetSize() >= size);
+
+            hr = AllocateFromBlock(
+                pBlock,
+                size,
+                alignment,
+                allocDesc.Flags,
+                allocDesc.pPrivateData,
+                allocDesc.Flags & ALLOCATION_FLAG_STRATEGY_MASK,
+                pAllocation);
+            if (SUCCEEDED(hr))
+            {
+                return hr;
+            }
+            else
+            {
+                // Allocation from new block failed, possibly due to D3D12MA_DEBUG_MARGIN or alignment.
+                return E_OUTOFMEMORY;
+            }
+        }
+    }
+
+    return E_OUTOFMEMORY;
+}
+
+HRESULT BlockVector::AllocateFromBlock(
+    NormalBlock* pBlock,
+    UINT64 size,
+    UINT64 alignment,
+    ALLOCATION_FLAGS allocFlags,
+    void* pPrivateData,
+    UINT32 strategy,
+    Allocation** pAllocation)
+{
+    alignment = D3D12MA_MAX(alignment, m_MinAllocationAlignment);
+
+    AllocationRequest currRequest = {};
+    if (pBlock->m_pMetadata->CreateAllocationRequest(
+        size,
+        alignment,
+        allocFlags & ALLOCATION_FLAG_UPPER_ADDRESS,
+        strategy,
+        &currRequest))
+    {
+        return CommitAllocationRequest(currRequest, pBlock, size, alignment, pPrivateData, pAllocation);
+    }
+    return E_OUTOFMEMORY;
+}
+
+HRESULT BlockVector::CommitAllocationRequest(
+    AllocationRequest& allocRequest,
+    NormalBlock* pBlock,
+    UINT64 size,
+    UINT64 alignment,
+    void* pPrivateData,
+    Allocation** pAllocation)
+{
+    // We no longer have an empty Allocation.
+    if (pBlock->m_pMetadata->IsEmpty())
+        m_HasEmptyBlock = false;
+
+    *pAllocation = m_hAllocator->GetAllocationObjectAllocator().Allocate(m_hAllocator, size, alignment, allocRequest.zeroInitialized);
+    pBlock->m_pMetadata->Alloc(allocRequest, size, *pAllocation);
+
+    (*pAllocation)->InitPlaced(allocRequest.allocHandle, pBlock);
+    (*pAllocation)->SetPrivateData(pPrivateData);
+
+    D3D12MA_HEAVY_ASSERT(pBlock->Validate());
+    m_hAllocator->m_Budget.AddAllocation(m_hAllocator->HeapPropertiesToMemorySegmentGroup(m_HeapProps), size);
+
+    return S_OK;
+}
+
+HRESULT BlockVector::CreateBlock(
+    UINT64 blockSize,
+    size_t* pNewBlockIndex)
+{
+    NormalBlock* const pBlock = D3D12MA_NEW(m_hAllocator->GetAllocs(), NormalBlock)(
+        m_hAllocator,
+        this,
+        m_HeapProps,
+        m_HeapFlags,
+        blockSize,
+        m_NextBlockId++);
+    HRESULT hr = pBlock->Init(m_Algorithm, m_ProtectedSession, m_DenyMsaaTextures);
+    if (FAILED(hr))
+    {
+        D3D12MA_DELETE(m_hAllocator->GetAllocs(), pBlock);
+        return hr;
+    }
+
+    m_hAllocator->SetResidencyPriority(pBlock->GetHeap(), m_ResidencyPriority);
+
+    m_Blocks.push_back(pBlock);
+    if (pNewBlockIndex != NULL)
+    {
+        *pNewBlockIndex = m_Blocks.size() - 1;
+    }
+
+    return hr;
+}
+#endif // _D3D12MA_BLOCK_VECTOR_FUNCTIONS
+
+#ifndef _D3D12MA_DEFRAGMENTATION_CONTEXT_PIMPL_FUNCTIONS
+DefragmentationContextPimpl::DefragmentationContextPimpl(
+    AllocatorPimpl* hAllocator,
+    const DEFRAGMENTATION_DESC& desc,
+    BlockVector* poolVector)
+    : m_MaxPassBytes(desc.MaxBytesPerPass == 0 ? UINT64_MAX : desc.MaxBytesPerPass),
+    m_MaxPassAllocations(desc.MaxAllocationsPerPass == 0 ? UINT32_MAX : desc.MaxAllocationsPerPass),
+    m_Moves(hAllocator->GetAllocs())
+{
+    m_Algorithm = desc.Flags & DEFRAGMENTATION_FLAG_ALGORITHM_MASK;
+
+    if (poolVector != NULL)
+    {
+        m_BlockVectorCount = 1;
+        m_PoolBlockVector = poolVector;
+        m_pBlockVectors = &m_PoolBlockVector;
+        m_PoolBlockVector->SetIncrementalSort(false);
+        m_PoolBlockVector->SortByFreeSize();
+    }
+    else
+    {
+        m_BlockVectorCount = hAllocator->GetDefaultPoolCount();
+        m_PoolBlockVector = NULL;
+        m_pBlockVectors = hAllocator->GetDefaultPools();
+        for (UINT32 i = 0; i < m_BlockVectorCount; ++i)
+        {
+            BlockVector* vector = m_pBlockVectors[i];
+            if (vector != NULL)
+            {
+                vector->SetIncrementalSort(false);
+                vector->SortByFreeSize();
+            }
+        }
+    }
+
+    switch (m_Algorithm)
+    {
+    case 0: // Default algorithm
+        m_Algorithm = DEFRAGMENTATION_FLAG_ALGORITHM_BALANCED;
+    case DEFRAGMENTATION_FLAG_ALGORITHM_BALANCED:
+    {
+        m_AlgorithmState = D3D12MA_NEW_ARRAY(hAllocator->GetAllocs(), StateBalanced, m_BlockVectorCount);
+        break;
+    }
+    }
+}
+
+DefragmentationContextPimpl::~DefragmentationContextPimpl()
+{
+    if (m_PoolBlockVector != NULL)
+        m_PoolBlockVector->SetIncrementalSort(true);
+    else
+    {
+        for (UINT32 i = 0; i < m_BlockVectorCount; ++i)
+        {
+            BlockVector* vector = m_pBlockVectors[i];
+            if (vector != NULL)
+                vector->SetIncrementalSort(true);
+        }
+    }
+
+    if (m_AlgorithmState)
+    {
+        switch (m_Algorithm)
+        {
+        case DEFRAGMENTATION_FLAG_ALGORITHM_BALANCED:
+            D3D12MA_DELETE_ARRAY(m_Moves.GetAllocs(), reinterpret_cast<StateBalanced*>(m_AlgorithmState), m_BlockVectorCount);
+            break;
+        default:
+            D3D12MA_ASSERT(0);
+        }
+    }
+}
+
+HRESULT DefragmentationContextPimpl::DefragmentPassBegin(DEFRAGMENTATION_PASS_MOVE_INFO& moveInfo)
+{
+    if (m_PoolBlockVector != NULL)
+    {
+        MutexLockWrite lock(m_PoolBlockVector->GetMutex(), m_PoolBlockVector->m_hAllocator->UseMutex());
+
+        if (m_PoolBlockVector->GetBlockCount() > 1)
+            ComputeDefragmentation(*m_PoolBlockVector, 0);
+        else if (m_PoolBlockVector->GetBlockCount() == 1)
+            ReallocWithinBlock(*m_PoolBlockVector, m_PoolBlockVector->GetBlock(0));
+
+        // Setup index into block vector
+        for (size_t i = 0; i < m_Moves.size(); ++i)
+            m_Moves[i].pDstTmpAllocation->SetPrivateData(0);
+    }
+    else
+    {
+        for (UINT32 i = 0; i < m_BlockVectorCount; ++i)
+        {
+            if (m_pBlockVectors[i] != NULL)
+            {
+                MutexLockWrite lock(m_pBlockVectors[i]->GetMutex(), m_pBlockVectors[i]->m_hAllocator->UseMutex());
+
+                bool end = false;
+                size_t movesOffset = m_Moves.size();
+                if (m_pBlockVectors[i]->GetBlockCount() > 1)
+                {
+                    end = ComputeDefragmentation(*m_pBlockVectors[i], i);
+                }
+                else if (m_pBlockVectors[i]->GetBlockCount() == 1)
+                {
+                    end = ReallocWithinBlock(*m_pBlockVectors[i], m_pBlockVectors[i]->GetBlock(0));
+                }
+
+                // Setup index into block vector
+                for (; movesOffset < m_Moves.size(); ++movesOffset)
+                    m_Moves[movesOffset].pDstTmpAllocation->SetPrivateData(reinterpret_cast<void*>(static_cast<uintptr_t>(i)));
+
+                if (end)
+                    break;
+            }
+        }
+    }
+
+    moveInfo.MoveCount = static_cast<UINT32>(m_Moves.size());
+    if (moveInfo.MoveCount > 0)
+    {
+        moveInfo.pMoves = m_Moves.data();
+        return S_FALSE;
+    }
+
+    moveInfo.pMoves = NULL;
+    return S_OK;
+}
+
+HRESULT DefragmentationContextPimpl::DefragmentPassEnd(DEFRAGMENTATION_PASS_MOVE_INFO& moveInfo)
+{
+    D3D12MA_ASSERT(moveInfo.MoveCount > 0 ? moveInfo.pMoves != NULL : true);
+
+    HRESULT result = S_OK;
+    Vector<FragmentedBlock> immovableBlocks(m_Moves.GetAllocs());
+
+    for (uint32_t i = 0; i < moveInfo.MoveCount; ++i)
+    {
+        DEFRAGMENTATION_MOVE& move = moveInfo.pMoves[i];
+        size_t prevCount = 0, currentCount = 0;
+        UINT64 freedBlockSize = 0;
+
+        UINT32 vectorIndex;
+        BlockVector* vector;
+        if (m_PoolBlockVector != NULL)
+        {
+            vectorIndex = 0;
+            vector = m_PoolBlockVector;
+        }
+        else
+        {
+            vectorIndex = static_cast<UINT32>(reinterpret_cast<uintptr_t>(move.pDstTmpAllocation->GetPrivateData()));
+            vector = m_pBlockVectors[vectorIndex];
+            D3D12MA_ASSERT(vector != NULL);
+        }
+
+        switch (move.Operation)
+        {
+        case DEFRAGMENTATION_MOVE_OPERATION_COPY:
+        {
+            move.pSrcAllocation->SwapBlockAllocation(move.pDstTmpAllocation);
+
+            // Scope for locks, Free have it's own lock
+            {
+                MutexLockRead lock(vector->GetMutex(), vector->m_hAllocator->UseMutex());
+                prevCount = vector->GetBlockCount();
+                freedBlockSize = move.pDstTmpAllocation->GetBlock()->m_pMetadata->GetSize();
+            }
+            move.pDstTmpAllocation->Release();
+            {
+                MutexLockRead lock(vector->GetMutex(), vector->m_hAllocator->UseMutex());
+                currentCount = vector->GetBlockCount();
+            }
+
+            result = S_FALSE;
+            break;
+        }
+        case DEFRAGMENTATION_MOVE_OPERATION_IGNORE:
+        {
+            m_PassStats.BytesMoved -= move.pSrcAllocation->GetSize();
+            --m_PassStats.AllocationsMoved;
+            move.pDstTmpAllocation->Release();
+
+            NormalBlock* newBlock = move.pSrcAllocation->GetBlock();
+            bool notPresent = true;
+            for (const FragmentedBlock& block : immovableBlocks)
+            {
+                if (block.block == newBlock)
+                {
+                    notPresent = false;
+                    break;
+                }
+            }
+            if (notPresent)
+                immovableBlocks.push_back({ vectorIndex, newBlock });
+            break;
+        }
+        case DEFRAGMENTATION_MOVE_OPERATION_DESTROY:
+        {
+            m_PassStats.BytesMoved -= move.pSrcAllocation->GetSize();
+            --m_PassStats.AllocationsMoved;
+            // Scope for locks, Free have it's own lock
+            {
+                MutexLockRead lock(vector->GetMutex(), vector->m_hAllocator->UseMutex());
+                prevCount = vector->GetBlockCount();
+                freedBlockSize = move.pSrcAllocation->GetBlock()->m_pMetadata->GetSize();
+            }
+            move.pSrcAllocation->Release();
+            {
+                MutexLockRead lock(vector->GetMutex(), vector->m_hAllocator->UseMutex());
+                currentCount = vector->GetBlockCount();
+            }
+            freedBlockSize *= prevCount - currentCount;
+
+            UINT64 dstBlockSize;
+            {
+                MutexLockRead lock(vector->GetMutex(), vector->m_hAllocator->UseMutex());
+                dstBlockSize = move.pDstTmpAllocation->GetBlock()->m_pMetadata->GetSize();
+            }
+            move.pDstTmpAllocation->Release();
+            {
+                MutexLockRead lock(vector->GetMutex(), vector->m_hAllocator->UseMutex());
+                freedBlockSize += dstBlockSize * (currentCount - vector->GetBlockCount());
+                currentCount = vector->GetBlockCount();
+            }
+
+            result = S_FALSE;
+            break;
+        }
+        default:
+            D3D12MA_ASSERT(0);
+        }
+
+        if (prevCount > currentCount)
+        {
+            size_t freedBlocks = prevCount - currentCount;
+            m_PassStats.HeapsFreed += static_cast<UINT32>(freedBlocks);
+            m_PassStats.BytesFreed += freedBlockSize;
+        }
+    }
+    moveInfo.MoveCount = 0;
+    moveInfo.pMoves = NULL;
+    m_Moves.clear();
+
+    // Update stats
+    m_GlobalStats.AllocationsMoved += m_PassStats.AllocationsMoved;
+    m_GlobalStats.BytesFreed += m_PassStats.BytesFreed;
+    m_GlobalStats.BytesMoved += m_PassStats.BytesMoved;
+    m_GlobalStats.HeapsFreed += m_PassStats.HeapsFreed;
+    m_PassStats = { 0 };
+
+    // Move blocks with immovable allocations according to algorithm
+    if (immovableBlocks.size() > 0)
+    {
+        // Move to the begining
+        for (const FragmentedBlock& block : immovableBlocks)
+        {
+            BlockVector* vector = m_pBlockVectors[block.data];
+            MutexLockWrite lock(vector->GetMutex(), vector->m_hAllocator->UseMutex());
+
+            for (size_t i = m_ImmovableBlockCount; i < vector->GetBlockCount(); ++i)
+            {
+                if (vector->GetBlock(i) == block.block)
+                {
+                    D3D12MA_SWAP(vector->m_Blocks[i], vector->m_Blocks[m_ImmovableBlockCount++]);
+                    break;
+                }
+            }
+        }
+    }
+    return result;
+}
+
+bool DefragmentationContextPimpl::ComputeDefragmentation(BlockVector& vector, size_t index)
+{
+    switch (m_Algorithm)
+    {
+    case DEFRAGMENTATION_FLAG_ALGORITHM_FAST:
+        return ComputeDefragmentation_Fast(vector);
+    default:
+        D3D12MA_ASSERT(0);
+    case DEFRAGMENTATION_FLAG_ALGORITHM_BALANCED:
+        return ComputeDefragmentation_Balanced(vector, index, true);
+    case DEFRAGMENTATION_FLAG_ALGORITHM_FULL:
+        return ComputeDefragmentation_Full(vector);
+    }
+}
+
+DefragmentationContextPimpl::MoveAllocationData DefragmentationContextPimpl::GetMoveData(
+    AllocHandle handle, BlockMetadata* metadata)
+{
+    MoveAllocationData moveData;
+    moveData.move.pSrcAllocation = (Allocation*)metadata->GetAllocationPrivateData(handle);
+    moveData.size = moveData.move.pSrcAllocation->GetSize();
+    moveData.alignment = moveData.move.pSrcAllocation->GetAlignment();
+    moveData.flags = ALLOCATION_FLAG_NONE;
+
+    return moveData;
+}
+
+DefragmentationContextPimpl::CounterStatus DefragmentationContextPimpl::CheckCounters(UINT64 bytes)
+{
+    // Ignore allocation if will exceed max size for copy
+    if (m_PassStats.BytesMoved + bytes > m_MaxPassBytes)
+    {
+        if (++m_IgnoredAllocs < MAX_ALLOCS_TO_IGNORE)
+            return CounterStatus::Ignore;
+        else
+            return CounterStatus::End;
+    }
+    return CounterStatus::Pass;
+}
+
+bool DefragmentationContextPimpl::IncrementCounters(UINT64 bytes)
+{
+    m_PassStats.BytesMoved += bytes;
+    // Early return when max found
+    if (++m_PassStats.AllocationsMoved >= m_MaxPassAllocations || m_PassStats.BytesMoved >= m_MaxPassBytes)
+    {
+        D3D12MA_ASSERT((m_PassStats.AllocationsMoved == m_MaxPassAllocations ||
+            m_PassStats.BytesMoved == m_MaxPassBytes) && "Exceeded maximal pass threshold!");
+        return true;
+    }
+    return false;
+}
+
+bool DefragmentationContextPimpl::ReallocWithinBlock(BlockVector& vector, NormalBlock* block)
+{
+    BlockMetadata* metadata = block->m_pMetadata;
+
+    for (AllocHandle handle = metadata->GetAllocationListBegin();
+        handle != (AllocHandle)0;
+        handle = metadata->GetNextAllocation(handle))
+    {
+        MoveAllocationData moveData = GetMoveData(handle, metadata);
+        // Ignore newly created allocations by defragmentation algorithm
+        if (moveData.move.pSrcAllocation->GetPrivateData() == this)
+            continue;
+        switch (CheckCounters(moveData.move.pSrcAllocation->GetSize()))
+        {
+        case CounterStatus::Ignore:
+            continue;
+        case CounterStatus::End:
+            return true;
+        default:
+            D3D12MA_ASSERT(0);
+        case CounterStatus::Pass:
+            break;
+        }
+        
+        UINT64 offset = moveData.move.pSrcAllocation->GetOffset();
+        if (offset != 0 && metadata->GetSumFreeSize() >= moveData.size)
+        {
+            AllocationRequest request = {};
+            if (metadata->CreateAllocationRequest(
+                moveData.size,
+                moveData.alignment,
+                false,
+                ALLOCATION_FLAG_STRATEGY_MIN_OFFSET,
+                &request))
+            {
+                if (metadata->GetAllocationOffset(request.allocHandle) < offset)
+                {
+                    if (SUCCEEDED(vector.CommitAllocationRequest(
+                        request,
+                        block,
+                        moveData.size,
+                        moveData.alignment,
+                        this,
+                        &moveData.move.pDstTmpAllocation)))
+                    {
+                        m_Moves.push_back(moveData.move);
+                        if (IncrementCounters(moveData.size))
+                            return true;
+                    }
+                }
+            }
+        }
+    }
+    return false;
+}
+
+bool DefragmentationContextPimpl::AllocInOtherBlock(size_t start, size_t end, MoveAllocationData& data, BlockVector& vector)
+{
+    for (; start < end; ++start)
+    {
+        NormalBlock* dstBlock = vector.GetBlock(start);
+        if (dstBlock->m_pMetadata->GetSumFreeSize() >= data.size)
+        {
+            if (SUCCEEDED(vector.AllocateFromBlock(dstBlock,
+                data.size,
+                data.alignment,
+                data.flags,
+                this,
+                0,
+                &data.move.pDstTmpAllocation)))
+            {
+                m_Moves.push_back(data.move);
+                if (IncrementCounters(data.size))
+                    return true;
+                break;
+            }
+        }
+    }
+    return false;
+}
+
+bool DefragmentationContextPimpl::ComputeDefragmentation_Fast(BlockVector& vector)
+{
+    // Move only between blocks
+
+    // Go through allocations in last blocks and try to fit them inside first ones
+    for (size_t i = vector.GetBlockCount() - 1; i > m_ImmovableBlockCount; --i)
+    {
+        BlockMetadata* metadata = vector.GetBlock(i)->m_pMetadata;
+
+        for (AllocHandle handle = metadata->GetAllocationListBegin();
+            handle != (AllocHandle)0;
+            handle = metadata->GetNextAllocation(handle))
+        {
+            MoveAllocationData moveData = GetMoveData(handle, metadata);
+            // Ignore newly created allocations by defragmentation algorithm
+            if (moveData.move.pSrcAllocation->GetPrivateData() == this)
+                continue;
+            switch (CheckCounters(moveData.move.pSrcAllocation->GetSize()))
+            {
+            case CounterStatus::Ignore:
+                continue;
+            case CounterStatus::End:
+                return true;
+            default:
+                D3D12MA_ASSERT(0);
+            case CounterStatus::Pass:
+                break;
+            }
+
+            // Check all previous blocks for free space
+            if (AllocInOtherBlock(0, i, moveData, vector))
+                return true;
+        }
+    }
+    return false;
+}
+
+bool DefragmentationContextPimpl::ComputeDefragmentation_Balanced(BlockVector& vector, size_t index, bool update)
+{
+    // Go over every allocation and try to fit it in previous blocks at lowest offsets,
+    // if not possible: realloc within single block to minimize offset (exclude offset == 0),
+    // but only if there are noticable gaps between them (some heuristic, ex. average size of allocation in block)
+    D3D12MA_ASSERT(m_AlgorithmState != NULL);
+
+    StateBalanced& vectorState = reinterpret_cast<StateBalanced*>(m_AlgorithmState)[index];
+    if (update && vectorState.avgAllocSize == UINT64_MAX)
+        UpdateVectorStatistics(vector, vectorState);
+
+    const size_t startMoveCount = m_Moves.size();
+    UINT64 minimalFreeRegion = vectorState.avgFreeSize / 2;
+    for (size_t i = vector.GetBlockCount() - 1; i > m_ImmovableBlockCount; --i)
+    {
+        NormalBlock* block = vector.GetBlock(i);
+        BlockMetadata* metadata = block->m_pMetadata;
+        UINT64 prevFreeRegionSize = 0;
+
+        for (AllocHandle handle = metadata->GetAllocationListBegin();
+            handle != (AllocHandle)0;
+            handle = metadata->GetNextAllocation(handle))
+        {
+            MoveAllocationData moveData = GetMoveData(handle, metadata);
+            // Ignore newly created allocations by defragmentation algorithm
+            if (moveData.move.pSrcAllocation->GetPrivateData() == this)
+                continue;
+            switch (CheckCounters(moveData.move.pSrcAllocation->GetSize()))
+            {
+            case CounterStatus::Ignore:
+                continue;
+            case CounterStatus::End:
+                return true;
+            default:
+                D3D12MA_ASSERT(0);
+            case CounterStatus::Pass:
+                break;
+            }
+
+            // Check all previous blocks for free space
+            const size_t prevMoveCount = m_Moves.size();
+            if (AllocInOtherBlock(0, i, moveData, vector))
+                return true;
+
+            UINT64 nextFreeRegionSize = metadata->GetNextFreeRegionSize(handle);
+            // If no room found then realloc within block for lower offset
+            UINT64 offset = moveData.move.pSrcAllocation->GetOffset();
+            if (prevMoveCount == m_Moves.size() && offset != 0 && metadata->GetSumFreeSize() >= moveData.size)
+            {
+                // Check if realloc will make sense
+                if (prevFreeRegionSize >= minimalFreeRegion ||
+                    nextFreeRegionSize >= minimalFreeRegion ||
+                    moveData.size <= vectorState.avgFreeSize ||
+                    moveData.size <= vectorState.avgAllocSize)
+                {
+                    AllocationRequest request = {};
+                    if (metadata->CreateAllocationRequest(
+                        moveData.size,
+                        moveData.alignment,
+                        false,
+                        ALLOCATION_FLAG_STRATEGY_MIN_OFFSET,
+                        &request))
+                    {
+                        if (metadata->GetAllocationOffset(request.allocHandle) < offset)
+                        {
+                            if (SUCCEEDED(vector.CommitAllocationRequest(
+                                request,
+                                block,
+                                moveData.size,
+                                moveData.alignment,
+                                this,
+                                &moveData.move.pDstTmpAllocation)))
+                            {
+                                m_Moves.push_back(moveData.move);
+                                if (IncrementCounters(moveData.size))
+                                    return true;
+                            }
+                        }
+                    }
+                }
+            }
+            prevFreeRegionSize = nextFreeRegionSize;
+        }
+    }
+
+    // No moves perfomed, update statistics to current vector state
+    if (startMoveCount == m_Moves.size() && !update)
+    {
+        vectorState.avgAllocSize = UINT64_MAX;
+        return ComputeDefragmentation_Balanced(vector, index, false);
+    }
+    return false;
+}
+
+bool DefragmentationContextPimpl::ComputeDefragmentation_Full(BlockVector& vector)
+{
+    // Go over every allocation and try to fit it in previous blocks at lowest offsets,
+    // if not possible: realloc within single block to minimize offset (exclude offset == 0)
+
+    for (size_t i = vector.GetBlockCount() - 1; i > m_ImmovableBlockCount; --i)
+    {
+        NormalBlock* block = vector.GetBlock(i);
+        BlockMetadata* metadata = block->m_pMetadata;
+
+        for (AllocHandle handle = metadata->GetAllocationListBegin();
+            handle != (AllocHandle)0;
+            handle = metadata->GetNextAllocation(handle))
+        {
+            MoveAllocationData moveData = GetMoveData(handle, metadata);
+            // Ignore newly created allocations by defragmentation algorithm
+            if (moveData.move.pSrcAllocation->GetPrivateData() == this)
+                continue;
+            switch (CheckCounters(moveData.move.pSrcAllocation->GetSize()))
+            {
+            case CounterStatus::Ignore:
+                continue;
+            case CounterStatus::End:
+                return true;
+            default:
+                D3D12MA_ASSERT(0);
+            case CounterStatus::Pass:
+                break;
+            }
+
+            // Check all previous blocks for free space
+            const size_t prevMoveCount = m_Moves.size();
+            if (AllocInOtherBlock(0, i, moveData, vector))
+                return true;
+
+            // If no room found then realloc within block for lower offset
+            UINT64 offset = moveData.move.pSrcAllocation->GetOffset();
+            if (prevMoveCount == m_Moves.size() && offset != 0 && metadata->GetSumFreeSize() >= moveData.size)
+            {
+                AllocationRequest request = {};
+                if (metadata->CreateAllocationRequest(
+                    moveData.size,
+                    moveData.alignment,
+                    false,
+                    ALLOCATION_FLAG_STRATEGY_MIN_OFFSET,
+                    &request))
+                {
+                    if (metadata->GetAllocationOffset(request.allocHandle) < offset)
+                    {
+                        if (SUCCEEDED(vector.CommitAllocationRequest(
+                            request,
+                            block,
+                            moveData.size,
+                            moveData.alignment,
+                            this,
+                            &moveData.move.pDstTmpAllocation)))
+                        {
+                            m_Moves.push_back(moveData.move);
+                            if (IncrementCounters(moveData.size))
+                                return true;
+                        }
+                    }
+                }
+            }
+        }
+    }
+    return false;
+}
+
+void DefragmentationContextPimpl::UpdateVectorStatistics(BlockVector& vector, StateBalanced& state)
+{
+    size_t allocCount = 0;
+    size_t freeCount = 0;
+    state.avgFreeSize = 0;
+    state.avgAllocSize = 0;
+
+    for (size_t i = 0; i < vector.GetBlockCount(); ++i)
+    {
+        BlockMetadata* metadata = vector.GetBlock(i)->m_pMetadata;
+
+        allocCount += metadata->GetAllocationCount();
+        freeCount += metadata->GetFreeRegionsCount();
+        state.avgFreeSize += metadata->GetSumFreeSize();
+        state.avgAllocSize += metadata->GetSize();
+    }
+
+    state.avgAllocSize = (state.avgAllocSize - state.avgFreeSize) / allocCount;
+    state.avgFreeSize /= freeCount;
+}
+#endif // _D3D12MA_DEFRAGMENTATION_CONTEXT_PIMPL_FUNCTIONS
+
+#ifndef _D3D12MA_POOL_PIMPL_FUNCTIONS
+PoolPimpl::PoolPimpl(AllocatorPimpl* allocator, const POOL_DESC& desc)
+    : m_Allocator(allocator),
+    m_Desc(desc),
+    m_BlockVector(NULL),
+    m_Name(NULL)
+{
+    const bool explicitBlockSize = desc.BlockSize != 0;
+    const UINT64 preferredBlockSize = explicitBlockSize ? desc.BlockSize : D3D12MA_DEFAULT_BLOCK_SIZE;
+    UINT maxBlockCount = desc.MaxBlockCount != 0 ? desc.MaxBlockCount : UINT_MAX;
+
+#ifndef __ID3D12Device4_INTERFACE_DEFINED__
+    D3D12MA_ASSERT(m_Desc.pProtectedSession == NULL);
+#endif
+
+    m_BlockVector = D3D12MA_NEW(allocator->GetAllocs(), BlockVector)(
+        allocator, desc.HeapProperties, desc.HeapFlags,
+        preferredBlockSize,
+        desc.MinBlockCount, maxBlockCount,
+        explicitBlockSize,
+        D3D12MA_MAX(desc.MinAllocationAlignment, (UINT64)D3D12MA_DEBUG_ALIGNMENT),
+        (desc.Flags & POOL_FLAG_ALGORITHM_MASK) != 0,
+        (desc.Flags & POOL_FLAG_MSAA_TEXTURES_ALWAYS_COMMITTED) != 0,
+        desc.pProtectedSession,
+        desc.ResidencyPriority);
+}
+
+PoolPimpl::~PoolPimpl()
+{
+    D3D12MA_ASSERT(m_PrevPool == NULL && m_NextPool == NULL);
+    FreeName();
+    D3D12MA_DELETE(m_Allocator->GetAllocs(), m_BlockVector);
+}
+
+HRESULT PoolPimpl::Init()
+{
+    m_CommittedAllocations.Init(m_Allocator->UseMutex(), m_Desc.HeapProperties.Type, this);
+    return m_BlockVector->CreateMinBlocks();
+}
+
+void PoolPimpl::GetStatistics(Statistics& outStats)
+{
+    ClearStatistics(outStats);
+    m_BlockVector->AddStatistics(outStats);
+    m_CommittedAllocations.AddStatistics(outStats);
+}
+
+void PoolPimpl::CalculateStatistics(DetailedStatistics& outStats)
+{
+    ClearDetailedStatistics(outStats);
+    AddDetailedStatistics(outStats);
+}
+
+void PoolPimpl::AddDetailedStatistics(DetailedStatistics& inoutStats)
+{
+    m_BlockVector->AddDetailedStatistics(inoutStats);
+    m_CommittedAllocations.AddDetailedStatistics(inoutStats);
+}
+
+void PoolPimpl::SetName(LPCWSTR Name)
+{
+    FreeName();
+
+    if (Name)
+    {
+        const size_t nameCharCount = wcslen(Name) + 1;
+        m_Name = D3D12MA_NEW_ARRAY(m_Allocator->GetAllocs(), WCHAR, nameCharCount);
+        memcpy(m_Name, Name, nameCharCount * sizeof(WCHAR));
+    }
+}
+
+void PoolPimpl::FreeName()
+{
+    if (m_Name)
+    {
+        const size_t nameCharCount = wcslen(m_Name) + 1;
+        D3D12MA_DELETE_ARRAY(m_Allocator->GetAllocs(), m_Name, nameCharCount);
+        m_Name = NULL;
+    }
+}
+#endif // _D3D12MA_POOL_PIMPL_FUNCTIONS
+
+
+#ifndef _D3D12MA_PUBLIC_INTERFACE
+HRESULT CreateAllocator(const ALLOCATOR_DESC* pDesc, Allocator** ppAllocator)
+{
+    if (!pDesc || !ppAllocator || !pDesc->pDevice || !pDesc->pAdapter ||
+        !(pDesc->PreferredBlockSize == 0 || (pDesc->PreferredBlockSize >= 16 && pDesc->PreferredBlockSize < 0x10000000000ull)))
+    {
+        D3D12MA_ASSERT(0 && "Invalid arguments passed to CreateAllocator.");
+        return E_INVALIDARG;
+    }
+
+    D3D12MA_DEBUG_GLOBAL_MUTEX_LOCK
+
+    ALLOCATION_CALLBACKS allocationCallbacks;
+    SetupAllocationCallbacks(allocationCallbacks, pDesc->pAllocationCallbacks);
+
+    *ppAllocator = D3D12MA_NEW(allocationCallbacks, Allocator)(allocationCallbacks, *pDesc);
+    HRESULT hr = (*ppAllocator)->m_Pimpl->Init(*pDesc);
+    if (FAILED(hr))
+    {
+        D3D12MA_DELETE(allocationCallbacks, *ppAllocator);
+        *ppAllocator = NULL;
+    }
+    return hr;
+}
+
+HRESULT CreateVirtualBlock(const VIRTUAL_BLOCK_DESC* pDesc, VirtualBlock** ppVirtualBlock)
+{
+    if (!pDesc || !ppVirtualBlock)
+    {
+        D3D12MA_ASSERT(0 && "Invalid arguments passed to CreateVirtualBlock.");
+        return E_INVALIDARG;
+    }
+
+    D3D12MA_DEBUG_GLOBAL_MUTEX_LOCK
+
+    ALLOCATION_CALLBACKS allocationCallbacks;
+    SetupAllocationCallbacks(allocationCallbacks, pDesc->pAllocationCallbacks);
+
+    *ppVirtualBlock = D3D12MA_NEW(allocationCallbacks, VirtualBlock)(allocationCallbacks, *pDesc);
+    return S_OK;
+}
+
+#ifndef _D3D12MA_IUNKNOWN_IMPL_FUNCTIONS
+HRESULT STDMETHODCALLTYPE IUnknownImpl::QueryInterface(REFIID riid, void** ppvObject)
+{
+    if (ppvObject == NULL)
+        return E_POINTER;
+    if (riid == IID_IUnknown)
+    {
+        ++m_RefCount;
+        *ppvObject = this;
+        return S_OK;
+    }
+    *ppvObject = NULL;
+    return E_NOINTERFACE;
+}
+
+ULONG STDMETHODCALLTYPE IUnknownImpl::AddRef()
+{
+    return ++m_RefCount;
+}
+
+ULONG STDMETHODCALLTYPE IUnknownImpl::Release()
+{
+    D3D12MA_DEBUG_GLOBAL_MUTEX_LOCK
+
+    const uint32_t newRefCount = --m_RefCount;
+    if (newRefCount == 0)
+        ReleaseThis();
+    return newRefCount;
+}
+#endif // _D3D12MA_IUNKNOWN_IMPL_FUNCTIONS
+
+#ifndef _D3D12MA_ALLOCATION_FUNCTIONS
+void Allocation::PackedData::SetType(Type type)
+{
+    const UINT u = (UINT)type;
+    D3D12MA_ASSERT(u < (1u << 2));
+    m_Type = u;
+}
+
+void Allocation::PackedData::SetResourceDimension(D3D12_RESOURCE_DIMENSION resourceDimension)
+{
+    const UINT u = (UINT)resourceDimension;
+    D3D12MA_ASSERT(u < (1u << 3));
+    m_ResourceDimension = u;
+}
+
+void Allocation::PackedData::SetResourceFlags(D3D12_RESOURCE_FLAGS resourceFlags)
+{
+    const UINT u = (UINT)resourceFlags;
+    D3D12MA_ASSERT(u < (1u << 24));
+    m_ResourceFlags = u;
+}
+
+void Allocation::PackedData::SetTextureLayout(D3D12_TEXTURE_LAYOUT textureLayout)
+{
+    const UINT u = (UINT)textureLayout;
+    D3D12MA_ASSERT(u < (1u << 9));
+    m_TextureLayout = u;
+}
+
+UINT64 Allocation::GetOffset() const
+{
+    switch (m_PackedData.GetType())
+    {
+    case TYPE_COMMITTED:
+    case TYPE_HEAP:
+        return 0;
+    case TYPE_PLACED:
+        return m_Placed.block->m_pMetadata->GetAllocationOffset(m_Placed.allocHandle);
+    default:
+        D3D12MA_ASSERT(0);
+        return 0;
+    }
+}
+
+void Allocation::SetResource(ID3D12Resource* pResource)
+{
+    if (pResource != m_Resource)
+    {
+        if (m_Resource)
+            m_Resource->Release();
+        m_Resource = pResource;
+        if (m_Resource)
+            m_Resource->AddRef();
+    }
+}
+
+ID3D12Heap* Allocation::GetHeap() const
+{
+    switch (m_PackedData.GetType())
+    {
+    case TYPE_COMMITTED:
+        return NULL;
+    case TYPE_PLACED:
+        return m_Placed.block->GetHeap();
+    case TYPE_HEAP:
+        return m_Heap.heap;
+    default:
+        D3D12MA_ASSERT(0);
+        return 0;
+    }
+}
+
+void Allocation::SetName(LPCWSTR Name)
+{
+    FreeName();
+
+    if (Name)
+    {
+        const size_t nameCharCount = wcslen(Name) + 1;
+        m_Name = D3D12MA_NEW_ARRAY(m_Allocator->GetAllocs(), WCHAR, nameCharCount);
+        memcpy(m_Name, Name, nameCharCount * sizeof(WCHAR));
+    }
+}
+
+void Allocation::ReleaseThis()
+{
+    if (this == NULL)
+    {
+        return;
+    }
+
+    SAFE_RELEASE(m_Resource);
+
+    switch (m_PackedData.GetType())
+    {
+    case TYPE_COMMITTED:
+        m_Allocator->FreeCommittedMemory(this);
+        break;
+    case TYPE_PLACED:
+        m_Allocator->FreePlacedMemory(this);
+        break;
+    case TYPE_HEAP:
+        m_Allocator->FreeHeapMemory(this);
+        break;
+    }
+
+    FreeName();
+
+    m_Allocator->GetAllocationObjectAllocator().Free(this);
+}
+
+Allocation::Allocation(AllocatorPimpl* allocator, UINT64 size, UINT64 alignment, BOOL wasZeroInitialized)
+    : m_Allocator{ allocator },
+    m_Size{ size },
+    m_Alignment{ alignment },
+    m_Resource{ NULL },
+    m_pPrivateData{ NULL },
+    m_Name{ NULL }
+{
+    D3D12MA_ASSERT(allocator);
+
+    m_PackedData.SetType(TYPE_COUNT);
+    m_PackedData.SetResourceDimension(D3D12_RESOURCE_DIMENSION_UNKNOWN);
+    m_PackedData.SetResourceFlags(D3D12_RESOURCE_FLAG_NONE);
+    m_PackedData.SetTextureLayout(D3D12_TEXTURE_LAYOUT_UNKNOWN);
+    m_PackedData.SetWasZeroInitialized(wasZeroInitialized);
+}
+
+void Allocation::InitCommitted(CommittedAllocationList* list)
+{
+    m_PackedData.SetType(TYPE_COMMITTED);
+    m_Committed.list = list;
+    m_Committed.prev = NULL;
+    m_Committed.next = NULL;
+}
+
+void Allocation::InitPlaced(AllocHandle allocHandle, NormalBlock* block)
+{
+    m_PackedData.SetType(TYPE_PLACED);
+    m_Placed.allocHandle = allocHandle;
+    m_Placed.block = block;
+}
+
+void Allocation::InitHeap(CommittedAllocationList* list, ID3D12Heap* heap)
+{
+    m_PackedData.SetType(TYPE_HEAP);
+    m_Heap.list = list;
+    m_Committed.prev = NULL;
+    m_Committed.next = NULL;
+    m_Heap.heap = heap;
+}
+
+void Allocation::SwapBlockAllocation(Allocation* allocation)
+{
+    D3D12MA_ASSERT(allocation != NULL);
+    D3D12MA_ASSERT(m_PackedData.GetType() == TYPE_PLACED);
+    D3D12MA_ASSERT(allocation->m_PackedData.GetType() == TYPE_PLACED);
+
+    D3D12MA_SWAP(m_Resource, allocation->m_Resource);
+    m_PackedData.SetWasZeroInitialized(allocation->m_PackedData.WasZeroInitialized());
+    m_Placed.block->m_pMetadata->SetAllocationPrivateData(m_Placed.allocHandle, allocation);
+    D3D12MA_SWAP(m_Placed, allocation->m_Placed);
+    m_Placed.block->m_pMetadata->SetAllocationPrivateData(m_Placed.allocHandle, this);
+}
+
+AllocHandle Allocation::GetAllocHandle() const
+{
+    switch (m_PackedData.GetType())
+    {
+    case TYPE_COMMITTED:
+    case TYPE_HEAP:
+        return (AllocHandle)0;
+    case TYPE_PLACED:
+        return m_Placed.allocHandle;
+    default:
+        D3D12MA_ASSERT(0);
+        return (AllocHandle)0;
+    }
+}
+
+NormalBlock* Allocation::GetBlock()
+{
+    switch (m_PackedData.GetType())
+    {
+    case TYPE_COMMITTED:
+    case TYPE_HEAP:
+        return NULL;
+    case TYPE_PLACED:
+        return m_Placed.block;
+    default:
+        D3D12MA_ASSERT(0);
+        return NULL;
+    }
+}
+
+template<typename D3D12_RESOURCE_DESC_T>
+void Allocation::SetResourcePointer(ID3D12Resource* resource, const D3D12_RESOURCE_DESC_T* pResourceDesc)
+{
+    D3D12MA_ASSERT(m_Resource == NULL && pResourceDesc);
+    m_Resource = resource;
+    m_PackedData.SetResourceDimension(pResourceDesc->Dimension);
+    m_PackedData.SetResourceFlags(pResourceDesc->Flags);
+    m_PackedData.SetTextureLayout(pResourceDesc->Layout);
+}
+
+void Allocation::FreeName()
+{
+    if (m_Name)
+    {
+        const size_t nameCharCount = wcslen(m_Name) + 1;
+        D3D12MA_DELETE_ARRAY(m_Allocator->GetAllocs(), m_Name, nameCharCount);
+        m_Name = NULL;
+    }
+}
+#endif // _D3D12MA_ALLOCATION_FUNCTIONS
+
+#ifndef _D3D12MA_DEFRAGMENTATION_CONTEXT_FUNCTIONS
+HRESULT DefragmentationContext::BeginPass(DEFRAGMENTATION_PASS_MOVE_INFO* pPassInfo)
+{
+    D3D12MA_ASSERT(pPassInfo);
+    return m_Pimpl->DefragmentPassBegin(*pPassInfo);
+}
+
+HRESULT DefragmentationContext::EndPass(DEFRAGMENTATION_PASS_MOVE_INFO* pPassInfo)
+{
+    D3D12MA_ASSERT(pPassInfo);
+    return m_Pimpl->DefragmentPassEnd(*pPassInfo);
+}
+
+void DefragmentationContext::GetStats(DEFRAGMENTATION_STATS* pStats)
+{
+    D3D12MA_ASSERT(pStats);
+    m_Pimpl->GetStats(*pStats);
+}
+
+void DefragmentationContext::ReleaseThis()
+{
+    if (this == NULL)
+    {
+        return;
+    }
+
+    D3D12MA_DELETE(m_Pimpl->GetAllocs(), this);
+}
+
+DefragmentationContext::DefragmentationContext(AllocatorPimpl* allocator,
+    const DEFRAGMENTATION_DESC& desc,
+    BlockVector* poolVector)
+    : m_Pimpl(D3D12MA_NEW(allocator->GetAllocs(), DefragmentationContextPimpl)(allocator, desc, poolVector)) {}
+
+DefragmentationContext::~DefragmentationContext()
+{
+    D3D12MA_DELETE(m_Pimpl->GetAllocs(), m_Pimpl);
+}
+#endif // _D3D12MA_DEFRAGMENTATION_CONTEXT_FUNCTIONS
+
+#ifndef _D3D12MA_POOL_FUNCTIONS
+POOL_DESC Pool::GetDesc() const
+{
+    return m_Pimpl->GetDesc();
+}
+
+void Pool::GetStatistics(Statistics* pStats)
+{
+    D3D12MA_ASSERT(pStats);
+    D3D12MA_DEBUG_GLOBAL_MUTEX_LOCK
+    m_Pimpl->GetStatistics(*pStats);
+}
+
+void Pool::CalculateStatistics(DetailedStatistics* pStats)
+{
+    D3D12MA_ASSERT(pStats);
+    D3D12MA_DEBUG_GLOBAL_MUTEX_LOCK
+    m_Pimpl->CalculateStatistics(*pStats);
+}
+
+void Pool::SetName(LPCWSTR Name)
+{
+    D3D12MA_DEBUG_GLOBAL_MUTEX_LOCK
+    m_Pimpl->SetName(Name);
+}
+
+LPCWSTR Pool::GetName() const
+{
+    return m_Pimpl->GetName();
+}
+
+HRESULT Pool::BeginDefragmentation(const DEFRAGMENTATION_DESC* pDesc, DefragmentationContext** ppContext)
+{
+    D3D12MA_ASSERT(pDesc && ppContext);
+
+    // Check for support
+    if (m_Pimpl->GetBlockVector()->GetAlgorithm() & POOL_FLAG_ALGORITHM_LINEAR)
+        return E_NOINTERFACE;
+
+    AllocatorPimpl* allocator = m_Pimpl->GetAllocator();
+    *ppContext = D3D12MA_NEW(allocator->GetAllocs(), DefragmentationContext)(allocator, *pDesc, m_Pimpl->GetBlockVector());
+    return S_OK;
+}
+
+void Pool::ReleaseThis()
+{
+    if (this == NULL)
+    {
+        return;
+    }
+
+    D3D12MA_DELETE(m_Pimpl->GetAllocator()->GetAllocs(), this);
+}
+
+Pool::Pool(Allocator* allocator, const POOL_DESC& desc)
+    : m_Pimpl(D3D12MA_NEW(allocator->m_Pimpl->GetAllocs(), PoolPimpl)(allocator->m_Pimpl, desc)) {}
+
+Pool::~Pool()
+{
+    m_Pimpl->GetAllocator()->UnregisterPool(this, m_Pimpl->GetDesc().HeapProperties.Type);
+
+    D3D12MA_DELETE(m_Pimpl->GetAllocator()->GetAllocs(), m_Pimpl);
+}
+#endif // _D3D12MA_POOL_FUNCTIONS
+
+#ifndef _D3D12MA_ALLOCATOR_FUNCTIONS
+const D3D12_FEATURE_DATA_D3D12_OPTIONS& Allocator::GetD3D12Options() const
+{
+    return m_Pimpl->GetD3D12Options();
+}
+
+BOOL Allocator::IsUMA() const
+{
+    return m_Pimpl->IsUMA();
+}
+
+BOOL Allocator::IsCacheCoherentUMA() const
+{
+    return m_Pimpl->IsCacheCoherentUMA();
+}
+
+UINT64 Allocator::GetMemoryCapacity(UINT memorySegmentGroup) const
+{
+    return m_Pimpl->GetMemoryCapacity(memorySegmentGroup);
+}
+
+HRESULT Allocator::CreateResource(
+    const ALLOCATION_DESC* pAllocDesc,
+    const D3D12_RESOURCE_DESC* pResourceDesc,
+    D3D12_RESOURCE_STATES InitialResourceState,
+    const D3D12_CLEAR_VALUE* pOptimizedClearValue,
+    Allocation** ppAllocation,
+    REFIID riidResource,
+    void** ppvResource)
+{
+    if (!pAllocDesc || !pResourceDesc || !ppAllocation)
+    {
+        D3D12MA_ASSERT(0 && "Invalid arguments passed to Allocator::CreateResource.");
+        return E_INVALIDARG;
+    }
+    D3D12MA_DEBUG_GLOBAL_MUTEX_LOCK
+    return m_Pimpl->CreateResource(
+        pAllocDesc, 
+        CREATE_RESOURCE_PARAMS(pResourceDesc, InitialResourceState, pOptimizedClearValue), 
+        ppAllocation, 
+        riidResource, 
+        ppvResource);
+}
+
+#ifdef __ID3D12Device8_INTERFACE_DEFINED__
+HRESULT Allocator::CreateResource2(
+    const ALLOCATION_DESC* pAllocDesc,
+    const D3D12_RESOURCE_DESC1* pResourceDesc,
+    D3D12_RESOURCE_STATES InitialResourceState,
+    const D3D12_CLEAR_VALUE* pOptimizedClearValue,
+    Allocation** ppAllocation,
+    REFIID riidResource,
+    void** ppvResource)
+{
+    if (!pAllocDesc || !pResourceDesc || !ppAllocation)
+    {
+        D3D12MA_ASSERT(0 && "Invalid arguments passed to Allocator::CreateResource2.");
+        return E_INVALIDARG;
+    }
+    D3D12MA_DEBUG_GLOBAL_MUTEX_LOCK
+    return m_Pimpl->CreateResource(
+        pAllocDesc, 
+        CREATE_RESOURCE_PARAMS(pResourceDesc, InitialResourceState, pOptimizedClearValue), 
+        ppAllocation, 
+        riidResource, 
+        ppvResource);
+}
+#endif // #ifdef __ID3D12Device8_INTERFACE_DEFINED__
+
+#ifdef __ID3D12Device10_INTERFACE_DEFINED__
+HRESULT Allocator::CreateResource3(
+    const ALLOCATION_DESC* pAllocDesc,
+    const D3D12_RESOURCE_DESC1* pResourceDesc,
+    D3D12_BARRIER_LAYOUT InitialLayout,
+    const D3D12_CLEAR_VALUE* pOptimizedClearValue,
+    UINT32 NumCastableFormats,
+    DXGI_FORMAT* pCastableFormats,
+    Allocation** ppAllocation,
+    REFIID riidResource,
+    void** ppvResource)
+{
+    if (!pAllocDesc || !pResourceDesc || !ppAllocation)
+    {
+        D3D12MA_ASSERT(0 && "Invalid arguments passed to Allocator::CreateResource3.");
+        return E_INVALIDARG;
+    }
+    D3D12MA_DEBUG_GLOBAL_MUTEX_LOCK
+    return m_Pimpl->CreateResource(
+        pAllocDesc, 
+        CREATE_RESOURCE_PARAMS(pResourceDesc, InitialLayout, pOptimizedClearValue, NumCastableFormats, pCastableFormats), 
+        ppAllocation, 
+        riidResource, 
+        ppvResource);
+}
+#endif // #ifdef __ID3D12Device10_INTERFACE_DEFINED__
+
+HRESULT Allocator::AllocateMemory(
+    const ALLOCATION_DESC* pAllocDesc,
+    const D3D12_RESOURCE_ALLOCATION_INFO* pAllocInfo,
+    Allocation** ppAllocation)
+{
+    if (!ValidateAllocateMemoryParameters(pAllocDesc, pAllocInfo, ppAllocation))
+    {
+        D3D12MA_ASSERT(0 && "Invalid arguments passed to Allocator::AllocateMemory.");
+        return E_INVALIDARG;
+    }
+    D3D12MA_DEBUG_GLOBAL_MUTEX_LOCK
+        return m_Pimpl->AllocateMemory(pAllocDesc, pAllocInfo, ppAllocation);
+}
+
+HRESULT Allocator::CreateAliasingResource(
+    Allocation* pAllocation,
+    UINT64 AllocationLocalOffset,
+    const D3D12_RESOURCE_DESC* pResourceDesc,
+    D3D12_RESOURCE_STATES InitialResourceState,
+    const D3D12_CLEAR_VALUE* pOptimizedClearValue,
+    REFIID riidResource,
+    void** ppvResource)
+{
+    if (!pAllocation || !pResourceDesc || !ppvResource)
+    {
+        D3D12MA_ASSERT(0 && "Invalid arguments passed to Allocator::CreateAliasingResource.");
+        return E_INVALIDARG;
+    }
+    D3D12MA_DEBUG_GLOBAL_MUTEX_LOCK
+    return m_Pimpl->CreateAliasingResource(
+        pAllocation, 
+        AllocationLocalOffset, 
+        CREATE_RESOURCE_PARAMS(pResourceDesc, InitialResourceState, pOptimizedClearValue), 
+        riidResource, 
+        ppvResource);
+}
+
+#ifdef __ID3D12Device8_INTERFACE_DEFINED__
+HRESULT Allocator::CreateAliasingResource1(
+    Allocation* pAllocation,
+    UINT64 AllocationLocalOffset,
+    const D3D12_RESOURCE_DESC1* pResourceDesc,
+    D3D12_RESOURCE_STATES InitialResourceState,
+    const D3D12_CLEAR_VALUE* pOptimizedClearValue,
+    REFIID riidResource,
+    void** ppvResource)
+{
+    if (!pAllocation || !pResourceDesc || !ppvResource)
+    {
+        D3D12MA_ASSERT(0 && "Invalid arguments passed to Allocator::CreateAliasingResource.");
+        return E_INVALIDARG;
+    }
+    D3D12MA_DEBUG_GLOBAL_MUTEX_LOCK
+    return m_Pimpl->CreateAliasingResource(
+        pAllocation, 
+        AllocationLocalOffset, 
+        CREATE_RESOURCE_PARAMS(pResourceDesc, InitialResourceState, pOptimizedClearValue), 
+        riidResource, 
+        ppvResource);
+}
+#endif  // #ifdef __ID3D12Device8_INTERFACE_DEFINED__
+
+#ifdef __ID3D12Device10_INTERFACE_DEFINED__
+HRESULT Allocator::CreateAliasingResource2(
+    Allocation* pAllocation,
+    UINT64 AllocationLocalOffset,
+    const D3D12_RESOURCE_DESC1* pResourceDesc,
+    D3D12_BARRIER_LAYOUT InitialLayout,
+    const D3D12_CLEAR_VALUE* pOptimizedClearValue,
+    UINT32 NumCastableFormats,
+    DXGI_FORMAT* pCastableFormats,
+    REFIID riidResource,
+    void** ppvResource)
+{
+    if (!pAllocation || !pResourceDesc || !ppvResource)
+    {
+        D3D12MA_ASSERT(0 && "Invalid arguments passed to Allocator::CreateAliasingResource.");
+        return E_INVALIDARG;
+    }
+    D3D12MA_DEBUG_GLOBAL_MUTEX_LOCK
+    return m_Pimpl->CreateAliasingResource(
+        pAllocation, 
+        AllocationLocalOffset, 
+        CREATE_RESOURCE_PARAMS(pResourceDesc, InitialLayout, pOptimizedClearValue, NumCastableFormats, pCastableFormats),
+        riidResource, 
+        ppvResource);
+}
+#endif  // #ifdef __ID3D12Device10_INTERFACE_DEFINED__
+
+HRESULT Allocator::CreatePool(
+    const POOL_DESC* pPoolDesc,
+    Pool** ppPool)
+{
+    if (!pPoolDesc || !ppPool ||
+        (pPoolDesc->MaxBlockCount > 0 && pPoolDesc->MaxBlockCount < pPoolDesc->MinBlockCount) ||
+        (pPoolDesc->MinAllocationAlignment > 0 && !IsPow2(pPoolDesc->MinAllocationAlignment)))
+    {
+        D3D12MA_ASSERT(0 && "Invalid arguments passed to Allocator::CreatePool.");
+        return E_INVALIDARG;
+    }
+    if (!m_Pimpl->HeapFlagsFulfillResourceHeapTier(pPoolDesc->HeapFlags))
+    {
+        D3D12MA_ASSERT(0 && "Invalid pPoolDesc->HeapFlags passed to Allocator::CreatePool. Did you forget to handle ResourceHeapTier=1?");
+        return E_INVALIDARG;
+    }
+    D3D12MA_DEBUG_GLOBAL_MUTEX_LOCK
+    * ppPool = D3D12MA_NEW(m_Pimpl->GetAllocs(), Pool)(this, *pPoolDesc);
+    HRESULT hr = (*ppPool)->m_Pimpl->Init();
+    if (SUCCEEDED(hr))
+    {
+        m_Pimpl->RegisterPool(*ppPool, pPoolDesc->HeapProperties.Type);
+    }
+    else
+    {
+        D3D12MA_DELETE(m_Pimpl->GetAllocs(), *ppPool);
+        *ppPool = NULL;
+    }
+    return hr;
+}
+
+void Allocator::SetCurrentFrameIndex(UINT frameIndex)
+{
+    D3D12MA_DEBUG_GLOBAL_MUTEX_LOCK
+    m_Pimpl->SetCurrentFrameIndex(frameIndex);
+}
+
+void Allocator::GetBudget(Budget* pLocalBudget, Budget* pNonLocalBudget)
+{
+    if (pLocalBudget == NULL && pNonLocalBudget == NULL)
+    {
+        return;
+    }
+    D3D12MA_DEBUG_GLOBAL_MUTEX_LOCK
+    m_Pimpl->GetBudget(pLocalBudget, pNonLocalBudget);
+}
+
+void Allocator::CalculateStatistics(TotalStatistics* pStats)
+{
+    D3D12MA_ASSERT(pStats);
+    D3D12MA_DEBUG_GLOBAL_MUTEX_LOCK
+    m_Pimpl->CalculateStatistics(*pStats);
+}
+
+void Allocator::BuildStatsString(WCHAR** ppStatsString, BOOL DetailedMap) const
+{
+    D3D12MA_ASSERT(ppStatsString);
+    D3D12MA_DEBUG_GLOBAL_MUTEX_LOCK
+    m_Pimpl->BuildStatsString(ppStatsString, DetailedMap);
+}
+
+void Allocator::FreeStatsString(WCHAR* pStatsString) const
+{
+    if (pStatsString != NULL)
+    {
+        D3D12MA_DEBUG_GLOBAL_MUTEX_LOCK
+        m_Pimpl->FreeStatsString(pStatsString);
+    }
+}
+
+void Allocator::BeginDefragmentation(const DEFRAGMENTATION_DESC* pDesc, DefragmentationContext** ppContext)
+{
+    D3D12MA_ASSERT(pDesc && ppContext);
+
+    *ppContext = D3D12MA_NEW(m_Pimpl->GetAllocs(), DefragmentationContext)(m_Pimpl, *pDesc, NULL);
+}
+
+void Allocator::ReleaseThis()
+{
+    // Copy is needed because otherwise we would call destructor and invalidate the structure with callbacks before using it to free memory.
+    const ALLOCATION_CALLBACKS allocationCallbacksCopy = m_Pimpl->GetAllocs();
+    D3D12MA_DELETE(allocationCallbacksCopy, this);
+}
+
+Allocator::Allocator(const ALLOCATION_CALLBACKS& allocationCallbacks, const ALLOCATOR_DESC& desc)
+    : m_Pimpl(D3D12MA_NEW(allocationCallbacks, AllocatorPimpl)(allocationCallbacks, desc)) {}
+
+Allocator::~Allocator()
+{
+    D3D12MA_DELETE(m_Pimpl->GetAllocs(), m_Pimpl);
+}
+#endif // _D3D12MA_ALLOCATOR_FUNCTIONS
+
+#ifndef _D3D12MA_VIRTUAL_BLOCK_FUNCTIONS
+BOOL VirtualBlock::IsEmpty() const
+{
+    D3D12MA_DEBUG_GLOBAL_MUTEX_LOCK
+    return m_Pimpl->m_Metadata->IsEmpty() ? TRUE : FALSE;
+}
+
+void VirtualBlock::GetAllocationInfo(VirtualAllocation allocation, VIRTUAL_ALLOCATION_INFO* pInfo) const
+{
+    D3D12MA_ASSERT(allocation.AllocHandle != (AllocHandle)0 && pInfo);
+
+    D3D12MA_DEBUG_GLOBAL_MUTEX_LOCK
+    m_Pimpl->m_Metadata->GetAllocationInfo(allocation.AllocHandle, *pInfo);
+}
+
+HRESULT VirtualBlock::Allocate(const VIRTUAL_ALLOCATION_DESC* pDesc, VirtualAllocation* pAllocation, UINT64* pOffset)
+{
+    if (!pDesc || !pAllocation || pDesc->Size == 0 || !IsPow2(pDesc->Alignment))
+    {
+        D3D12MA_ASSERT(0 && "Invalid arguments passed to VirtualBlock::Allocate.");
+        return E_INVALIDARG;
+    }
+
+    D3D12MA_DEBUG_GLOBAL_MUTEX_LOCK
+
+    const UINT64 alignment = pDesc->Alignment != 0 ? pDesc->Alignment : 1;
+    AllocationRequest allocRequest = {};
+    if (m_Pimpl->m_Metadata->CreateAllocationRequest(
+        pDesc->Size,
+        alignment,
+        pDesc->Flags & VIRTUAL_ALLOCATION_FLAG_UPPER_ADDRESS,
+        pDesc->Flags & VIRTUAL_ALLOCATION_FLAG_STRATEGY_MASK,
+        &allocRequest))
+    {
+        m_Pimpl->m_Metadata->Alloc(allocRequest, pDesc->Size, pDesc->pPrivateData);
+        D3D12MA_HEAVY_ASSERT(m_Pimpl->m_Metadata->Validate());
+        pAllocation->AllocHandle = allocRequest.allocHandle;
+
+        if (pOffset)
+            *pOffset = m_Pimpl->m_Metadata->GetAllocationOffset(allocRequest.allocHandle);
+        return S_OK;
+    }
+
+    pAllocation->AllocHandle = (AllocHandle)0;
+    if (pOffset)
+        *pOffset = UINT64_MAX;
+
+    return E_OUTOFMEMORY;
+}
+
+void VirtualBlock::FreeAllocation(VirtualAllocation allocation)
+{
+    if (allocation.AllocHandle == (AllocHandle)0)
+        return;
+
+    D3D12MA_DEBUG_GLOBAL_MUTEX_LOCK
+
+    m_Pimpl->m_Metadata->Free(allocation.AllocHandle);
+    D3D12MA_HEAVY_ASSERT(m_Pimpl->m_Metadata->Validate());
+}
+
+void VirtualBlock::Clear()
+{
+    D3D12MA_DEBUG_GLOBAL_MUTEX_LOCK
+
+    m_Pimpl->m_Metadata->Clear();
+    D3D12MA_HEAVY_ASSERT(m_Pimpl->m_Metadata->Validate());
+}
+
+void VirtualBlock::SetAllocationPrivateData(VirtualAllocation allocation, void* pPrivateData)
+{
+    D3D12MA_ASSERT(allocation.AllocHandle != (AllocHandle)0);
+
+    D3D12MA_DEBUG_GLOBAL_MUTEX_LOCK
+    m_Pimpl->m_Metadata->SetAllocationPrivateData(allocation.AllocHandle, pPrivateData);
+}
+
+void VirtualBlock::GetStatistics(Statistics* pStats) const
+{
+    D3D12MA_ASSERT(pStats);
+    D3D12MA_DEBUG_GLOBAL_MUTEX_LOCK
+    D3D12MA_HEAVY_ASSERT(m_Pimpl->m_Metadata->Validate());
+    ClearStatistics(*pStats);
+    m_Pimpl->m_Metadata->AddStatistics(*pStats);
+}
+
+void VirtualBlock::CalculateStatistics(DetailedStatistics* pStats) const
+{
+    D3D12MA_ASSERT(pStats);
+    D3D12MA_DEBUG_GLOBAL_MUTEX_LOCK
+    D3D12MA_HEAVY_ASSERT(m_Pimpl->m_Metadata->Validate());
+    ClearDetailedStatistics(*pStats);
+    m_Pimpl->m_Metadata->AddDetailedStatistics(*pStats);
+}
+
+void VirtualBlock::BuildStatsString(WCHAR** ppStatsString) const
+{
+    D3D12MA_ASSERT(ppStatsString);
+
+    D3D12MA_DEBUG_GLOBAL_MUTEX_LOCK
+
+    StringBuilder sb(m_Pimpl->m_AllocationCallbacks);
+    {
+        JsonWriter json(m_Pimpl->m_AllocationCallbacks, sb);
+        D3D12MA_HEAVY_ASSERT(m_Pimpl->m_Metadata->Validate());
+        json.BeginObject();
+        m_Pimpl->m_Metadata->WriteAllocationInfoToJson(json);
+        json.EndObject();
+    } // Scope for JsonWriter
+
+    const size_t length = sb.GetLength();
+    WCHAR* result = AllocateArray<WCHAR>(m_Pimpl->m_AllocationCallbacks, length + 1);
+    memcpy(result, sb.GetData(), length * sizeof(WCHAR));
+    result[length] = L'\0';
+    *ppStatsString = result;
+}
+
+void VirtualBlock::FreeStatsString(WCHAR* pStatsString) const
+{
+    if (pStatsString != NULL)
+    {
+        D3D12MA_DEBUG_GLOBAL_MUTEX_LOCK
+        D3D12MA::Free(m_Pimpl->m_AllocationCallbacks, pStatsString);
+    }
+}
+
+void VirtualBlock::ReleaseThis()
+{
+    // Copy is needed because otherwise we would call destructor and invalidate the structure with callbacks before using it to free memory.
+    const ALLOCATION_CALLBACKS allocationCallbacksCopy = m_Pimpl->m_AllocationCallbacks;
+    D3D12MA_DELETE(allocationCallbacksCopy, this);
+}
+
+VirtualBlock::VirtualBlock(const ALLOCATION_CALLBACKS& allocationCallbacks, const VIRTUAL_BLOCK_DESC& desc)
+    : m_Pimpl(D3D12MA_NEW(allocationCallbacks, VirtualBlockPimpl)(allocationCallbacks, desc)) {}
+
+VirtualBlock::~VirtualBlock()
+{
+    // THIS IS AN IMPORTANT ASSERT!
+    // Hitting it means you have some memory leak - unreleased allocations in this virtual block.
+    D3D12MA_ASSERT(m_Pimpl->m_Metadata->IsEmpty() && "Some allocations were not freed before destruction of this virtual block!");
+
+    D3D12MA_DELETE(m_Pimpl->m_AllocationCallbacks, m_Pimpl);
+}
+#endif // _D3D12MA_VIRTUAL_BLOCK_FUNCTIONS
+#endif // _D3D12MA_PUBLIC_INTERFACE
+} // namespace D3D12MA
+
+#if defined(__clang__) || defined(__GNUC__)
+#pragma GCC diagnostic pop
+#endif
diff --git a/src/3rdparty/D3D12MemoryAllocator/D3D12MemAlloc.h b/src/3rdparty/D3D12MemoryAllocator/D3D12MemAlloc.h
new file mode 100644
index 00000000..d80dcb1e
--- /dev/null
+++ b/src/3rdparty/D3D12MemoryAllocator/D3D12MemAlloc.h
@@ -0,0 +1,2632 @@
+//
+// Copyright (c) 2019-2022 Advanced Micro Devices, Inc. All rights reserved.
+//
+// Permission is hereby granted, free of charge, to any person obtaining a copy
+// of this software and associated documentation files (the "Software"), to deal
+// in the Software without restriction, including without limitation the rights
+// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+// copies of the Software, and to permit persons to whom the Software is
+// furnished to do so, subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included in
+// all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+// THE SOFTWARE.
+//
+
+#pragma once
+
+/** \mainpage D3D12 Memory Allocator
+
+<b>Version 2.1.0-development</b> (2022-12-15)
+
+Copyright (c) 2019-2022 Advanced Micro Devices, Inc. All rights reserved. \n
+License: MIT
+
+Documentation of all members: D3D12MemAlloc.h
+
+\section main_table_of_contents Table of contents
+
+- \subpage quick_start
+    - [Project setup](@ref quick_start_project_setup)
+    - [Creating resources](@ref quick_start_creating_resources)
+    - [Resource reference counting](@ref quick_start_resource_reference_counting)
+    - [Mapping memory](@ref quick_start_mapping_memory)
+- \subpage custom_pools
+- \subpage defragmentation
+- \subpage statistics
+- \subpage resource_aliasing
+- \subpage linear_algorithm
+- \subpage virtual_allocator
+- \subpage configuration
+  - [Custom CPU memory allocator](@ref custom_memory_allocator)
+  - [Debug margins](@ref debug_margins)
+- \subpage general_considerations
+  - [Thread safety](@ref general_considerations_thread_safety)
+  - [Versioning and compatibility](@ref general_considerations_versioning_and_compatibility)
+  - [Features not supported](@ref general_considerations_features_not_supported)
+        
+\section main_see_also See also
+
+- [Product page on GPUOpen](https://gpuopen.com/gaming-product/d3d12-memory-allocator/)
+- [Source repository on GitHub](https://github.com/GPUOpen-LibrariesAndSDKs/D3D12MemoryAllocator)
+*/
+
+// If using this library on a platform different than Windows PC or want to use different version of DXGI,
+// you should include D3D12-compatible headers before this library on your own and define this macro.
+#ifndef D3D12MA_D3D12_HEADERS_ALREADY_INCLUDED
+    #include <d3d12.h>
+    #include <dxgi1_4.h>
+#endif
+
+// Define this macro to 0 to disable usage of DXGI 1.4 (needed for IDXGIAdapter3 and query for memory budget).
+#ifndef D3D12MA_DXGI_1_4
+    #ifdef __IDXGIAdapter3_INTERFACE_DEFINED__
+        #define D3D12MA_DXGI_1_4 1
+    #else
+        #define D3D12MA_DXGI_1_4 0
+    #endif
+#endif
+
+/*
+When defined to value other than 0, the library will try to use
+D3D12_SMALL_RESOURCE_PLACEMENT_ALIGNMENT or D3D12_SMALL_MSAA_RESOURCE_PLACEMENT_ALIGNMENT
+for created textures when possible, which can save memory because some small textures
+may get their alignment 4K and their size a multiply of 4K instead of 64K.
+
+#define D3D12MA_USE_SMALL_RESOURCE_PLACEMENT_ALIGNMENT 0
+    Disables small texture alignment.
+#define D3D12MA_USE_SMALL_RESOURCE_PLACEMENT_ALIGNMENT 1
+    Enables conservative algorithm that will use small alignment only for some textures
+    that are surely known to support it.
+#define D3D12MA_USE_SMALL_RESOURCE_PLACEMENT_ALIGNMENT 2
+    Enables query for small alignment to D3D12 (based on Microsoft sample) which will
+    enable small alignment for more textures, but will also generate D3D Debug Layer
+    error #721 on call to ID3D12Device::GetResourceAllocationInfo, which you should just
+    ignore.
+*/
+#ifndef D3D12MA_USE_SMALL_RESOURCE_PLACEMENT_ALIGNMENT
+    #define D3D12MA_USE_SMALL_RESOURCE_PLACEMENT_ALIGNMENT 1
+#endif
+
+/// \cond INTERNAL
+
+#define D3D12MA_CLASS_NO_COPY(className) \
+    private: \
+        className(const className&) = delete; \
+        className(className&&) = delete; \
+        className& operator=(const className&) = delete; \
+        className& operator=(className&&) = delete;
+
+// To be used with MAKE_HRESULT to define custom error codes.
+#define FACILITY_D3D12MA 3542
+
+/*
+If providing your own implementation, you need to implement a subset of std::atomic.
+*/
+#if !defined(D3D12MA_ATOMIC_UINT32) || !defined(D3D12MA_ATOMIC_UINT64)
+    #include <atomic>
+#endif
+
+#ifndef D3D12MA_ATOMIC_UINT32
+    #define D3D12MA_ATOMIC_UINT32 std::atomic<UINT>
+#endif
+
+#ifndef D3D12MA_ATOMIC_UINT64
+    #define D3D12MA_ATOMIC_UINT64 std::atomic<UINT64>
+#endif
+
+#ifdef D3D12MA_EXPORTS
+    #define D3D12MA_API __declspec(dllexport)
+#elif defined(D3D12MA_IMPORTS)
+    #define D3D12MA_API __declspec(dllimport)
+#else
+    #define D3D12MA_API
+#endif
+
+// Forward declaration if ID3D12ProtectedResourceSession is not defined inside the headers (older SDK, pre ID3D12Device4)
+struct ID3D12ProtectedResourceSession;
+
+// Define this enum even if SDK doesn't provide it, to simplify the API.
+#ifndef __ID3D12Device1_INTERFACE_DEFINED__
+typedef enum D3D12_RESIDENCY_PRIORITY
+{
+    D3D12_RESIDENCY_PRIORITY_MINIMUM = 0x28000000,
+    D3D12_RESIDENCY_PRIORITY_LOW = 0x50000000,
+    D3D12_RESIDENCY_PRIORITY_NORMAL = 0x78000000,
+    D3D12_RESIDENCY_PRIORITY_HIGH = 0xa0010000,
+    D3D12_RESIDENCY_PRIORITY_MAXIMUM = 0xc8000000
+} D3D12_RESIDENCY_PRIORITY;
+#endif
+
+namespace D3D12MA
+{
+class D3D12MA_API IUnknownImpl : public IUnknown
+{
+public:
+    virtual ~IUnknownImpl() = default;
+    HRESULT STDMETHODCALLTYPE QueryInterface(REFIID riid, void** ppvObject) override;
+    ULONG STDMETHODCALLTYPE AddRef() override;
+    ULONG STDMETHODCALLTYPE Release() override;
+protected:
+    virtual void ReleaseThis() { delete this; }
+private:
+    D3D12MA_ATOMIC_UINT32 m_RefCount = {1};
+};
+} // namespace D3D12MA
+
+/// \endcond
+
+namespace D3D12MA
+{
+
+/// \cond INTERNAL
+class DefragmentationContextPimpl;
+class AllocatorPimpl;
+class PoolPimpl;
+class NormalBlock;
+class BlockVector;
+class CommittedAllocationList;
+class JsonWriter;
+class VirtualBlockPimpl;
+/// \endcond
+
+class Pool;
+class Allocator;
+struct Statistics;
+struct DetailedStatistics;
+struct TotalStatistics;
+
+/// \brief Unique identifier of single allocation done inside the memory heap.
+typedef UINT64 AllocHandle;
+
+/// Pointer to custom callback function that allocates CPU memory.
+using ALLOCATE_FUNC_PTR = void* (*)(size_t Size, size_t Alignment, void* pPrivateData);
+/**
+\brief Pointer to custom callback function that deallocates CPU memory.
+
+`pMemory = null` should be accepted and ignored.
+*/
+using FREE_FUNC_PTR = void (*)(void* pMemory, void* pPrivateData);
+
+/// Custom callbacks to CPU memory allocation functions.
+struct ALLOCATION_CALLBACKS
+{
+    /// %Allocation function.
+    ALLOCATE_FUNC_PTR pAllocate;
+    /// Dellocation function.
+    FREE_FUNC_PTR pFree;
+    /// Custom data that will be passed to allocation and deallocation functions as `pUserData` parameter.
+    void* pPrivateData;
+};
+
+
+/// \brief Bit flags to be used with ALLOCATION_DESC::Flags.
+enum ALLOCATION_FLAGS
+{
+    /// Zero
+    ALLOCATION_FLAG_NONE = 0,
+
+    /**
+    Set this flag if the allocation should have its own dedicated memory allocation (committed resource with implicit heap).
+    
+    Use it for special, big resources, like fullscreen textures used as render targets.
+
+    - When used with functions like D3D12MA::Allocator::CreateResource, it will use `ID3D12Device::CreateCommittedResource`,
+      so the created allocation will contain a resource (D3D12MA::Allocation::GetResource() `!= NULL`) but will not have
+      a heap (D3D12MA::Allocation::GetHeap() `== NULL`), as the heap is implicit.
+    - When used with raw memory allocation like D3D12MA::Allocator::AllocateMemory, it will use `ID3D12Device::CreateHeap`,
+      so the created allocation will contain a heap (D3D12MA::Allocation::GetHeap() `!= NULL`) and its offset will always be 0.
+    */
+    ALLOCATION_FLAG_COMMITTED = 0x1,
+
+    /**
+    Set this flag to only try to allocate from existing memory heaps and never create new such heap.
+
+    If new allocation cannot be placed in any of the existing heaps, allocation
+    fails with `E_OUTOFMEMORY` error.
+
+    You should not use D3D12MA::ALLOCATION_FLAG_COMMITTED and
+    D3D12MA::ALLOCATION_FLAG_NEVER_ALLOCATE at the same time. It makes no sense.
+    */
+    ALLOCATION_FLAG_NEVER_ALLOCATE = 0x2,
+
+    /** Create allocation only if additional memory required for it, if any, won't exceed
+    memory budget. Otherwise return `E_OUTOFMEMORY`.
+    */
+    ALLOCATION_FLAG_WITHIN_BUDGET = 0x4,
+
+    /** Allocation will be created from upper stack in a double stack pool.
+
+    This flag is only allowed for custom pools created with #POOL_FLAG_ALGORITHM_LINEAR flag.
+    */
+    ALLOCATION_FLAG_UPPER_ADDRESS = 0x8,
+
+    /** Set this flag if the allocated memory will have aliasing resources.
+    
+    Use this when calling D3D12MA::Allocator::CreateResource() and similar to
+    guarantee creation of explicit heap for desired allocation and prevent it from using `CreateCommittedResource`,
+    so that new allocation object will always have `allocation->GetHeap() != NULL`.
+    */
+    ALLOCATION_FLAG_CAN_ALIAS = 0x10,
+
+    /** Allocation strategy that chooses smallest possible free range for the allocation
+    to minimize memory usage and fragmentation, possibly at the expense of allocation time.
+    */
+    ALLOCATION_FLAG_STRATEGY_MIN_MEMORY = 0x00010000,
+
+    /** Allocation strategy that chooses first suitable free range for the allocation -
+    not necessarily in terms of the smallest offset but the one that is easiest and fastest to find
+    to minimize allocation time, possibly at the expense of allocation quality.
+    */
+    ALLOCATION_FLAG_STRATEGY_MIN_TIME = 0x00020000,
+
+    /** Allocation strategy that chooses always the lowest offset in available space.
+    This is not the most efficient strategy but achieves highly packed data.
+    Used internally by defragmentation, not recomended in typical usage.
+    */
+    ALLOCATION_FLAG_STRATEGY_MIN_OFFSET = 0x0004000,
+
+    /// Alias to #ALLOCATION_FLAG_STRATEGY_MIN_MEMORY.
+    ALLOCATION_FLAG_STRATEGY_BEST_FIT = ALLOCATION_FLAG_STRATEGY_MIN_MEMORY,
+    /// Alias to #ALLOCATION_FLAG_STRATEGY_MIN_TIME.
+    ALLOCATION_FLAG_STRATEGY_FIRST_FIT = ALLOCATION_FLAG_STRATEGY_MIN_TIME,
+
+    /// A bit mask to extract only `STRATEGY` bits from entire set of flags.
+    ALLOCATION_FLAG_STRATEGY_MASK =
+        ALLOCATION_FLAG_STRATEGY_MIN_MEMORY |
+        ALLOCATION_FLAG_STRATEGY_MIN_TIME |
+        ALLOCATION_FLAG_STRATEGY_MIN_OFFSET,
+};
+
+/// \brief Parameters of created D3D12MA::Allocation object. To be used with Allocator::CreateResource.
+struct ALLOCATION_DESC
+{
+    /// Flags.
+    ALLOCATION_FLAGS Flags;
+    /** \brief The type of memory heap where the new allocation should be placed.
+
+    It must be one of: `D3D12_HEAP_TYPE_DEFAULT`, `D3D12_HEAP_TYPE_UPLOAD`, `D3D12_HEAP_TYPE_READBACK`.
+
+    When D3D12MA::ALLOCATION_DESC::CustomPool != NULL this member is ignored.
+    */
+    D3D12_HEAP_TYPE HeapType;
+    /** \brief Additional heap flags to be used when allocating memory.
+
+    In most cases it can be 0.
+    
+    - If you use D3D12MA::Allocator::CreateResource(), you don't need to care.
+      Necessary flag `D3D12_HEAP_FLAG_ALLOW_ONLY_BUFFERS`, `D3D12_HEAP_FLAG_ALLOW_ONLY_NON_RT_DS_TEXTURES`,
+      or `D3D12_HEAP_FLAG_ALLOW_ONLY_RT_DS_TEXTURES` is added automatically.
+    - If you use D3D12MA::Allocator::AllocateMemory(), you should specify one of those `ALLOW_ONLY` flags.
+      Except when you validate that D3D12MA::Allocator::GetD3D12Options()`.ResourceHeapTier == D3D12_RESOURCE_HEAP_TIER_1` -
+      then you can leave it 0.
+    - You can specify additional flags if needed. Then the memory will always be allocated as
+      separate block using `D3D12Device::CreateCommittedResource` or `CreateHeap`, not as part of an existing larget block.
+
+    When D3D12MA::ALLOCATION_DESC::CustomPool != NULL this member is ignored.
+    */
+    D3D12_HEAP_FLAGS ExtraHeapFlags;
+    /** \brief Custom pool to place the new resource in. Optional.
+
+    When not NULL, the resource will be created inside specified custom pool.
+    */
+    Pool* CustomPool;
+    /// Custom general-purpose pointer that will be stored in D3D12MA::Allocation.
+    void* pPrivateData;
+};
+
+/** \brief Calculated statistics of memory usage e.g. in a specific memory heap type,
+memory segment group, custom pool, or total.
+
+These are fast to calculate.
+See functions: D3D12MA::Allocator::GetBudget(), D3D12MA::Pool::GetStatistics().
+*/
+struct Statistics
+{
+    /** \brief Number of D3D12 memory blocks allocated - `ID3D12Heap` objects and committed resources.
+    */
+    UINT BlockCount;
+    /** \brief Number of D3D12MA::Allocation objects allocated.
+
+    Committed allocations have their own blocks, so each one adds 1 to `AllocationCount` as well as `BlockCount`.
+    */
+    UINT AllocationCount;
+    /** \brief Number of bytes allocated in memory blocks.
+    */
+    UINT64 BlockBytes;
+    /** \brief Total number of bytes occupied by all D3D12MA::Allocation objects.
+
+    Always less or equal than `BlockBytes`.
+    Difference `(BlockBytes - AllocationBytes)` is the amount of memory allocated from D3D12
+    but unused by any D3D12MA::Allocation.
+    */
+    UINT64 AllocationBytes;
+};
+
+/** \brief More detailed statistics than D3D12MA::Statistics.
+
+These are slower to calculate. Use for debugging purposes.
+See functions: D3D12MA::Allocator::CalculateStatistics(), D3D12MA::Pool::CalculateStatistics().
+
+Averages are not provided because they can be easily calculated as:
+
+\code
+UINT64 AllocationSizeAvg = DetailedStats.Statistics.AllocationBytes / detailedStats.Statistics.AllocationCount;
+UINT64 UnusedBytes = DetailedStats.Statistics.BlockBytes - DetailedStats.Statistics.AllocationBytes;
+UINT64 UnusedRangeSizeAvg = UnusedBytes / DetailedStats.UnusedRangeCount;
+\endcode
+*/
+struct DetailedStatistics
+{
+    /// Basic statistics.
+    Statistics Stats;
+    /// Number of free ranges of memory between allocations.
+    UINT UnusedRangeCount;
+    /// Smallest allocation size. `UINT64_MAX` if there are 0 allocations.
+    UINT64 AllocationSizeMin;
+    /// Largest allocation size. 0 if there are 0 allocations.
+    UINT64 AllocationSizeMax;
+    /// Smallest empty range size. `UINT64_MAX` if there are 0 empty ranges.
+    UINT64 UnusedRangeSizeMin;
+    /// Largest empty range size. 0 if there are 0 empty ranges.
+    UINT64 UnusedRangeSizeMax;
+};
+
+/** \brief  General statistics from current state of the allocator -
+total memory usage across all memory heaps and segments.
+
+These are slower to calculate. Use for debugging purposes.
+See function D3D12MA::Allocator::CalculateStatistics().
+*/
+struct TotalStatistics
+{
+    /** \brief One element for each type of heap located at the following indices:
+
+    - 0 = `D3D12_HEAP_TYPE_DEFAULT`
+    - 1 = `D3D12_HEAP_TYPE_UPLOAD`
+    - 2 = `D3D12_HEAP_TYPE_READBACK`
+    - 3 = `D3D12_HEAP_TYPE_CUSTOM`
+    */
+    DetailedStatistics HeapType[4];
+    /** \brief One element for each memory segment group located at the following indices:
+
+    - 0 = `DXGI_MEMORY_SEGMENT_GROUP_LOCAL`
+    - 1 = `DXGI_MEMORY_SEGMENT_GROUP_NON_LOCAL`
+
+    Meaning of these segment groups is:
+
+    - When `IsUMA() == FALSE` (discrete graphics card):
+      - `DXGI_MEMORY_SEGMENT_GROUP_LOCAL` (index 0) represents GPU memory
+      (resources allocated in `D3D12_HEAP_TYPE_DEFAULT` or `D3D12_MEMORY_POOL_L1`).
+      - `DXGI_MEMORY_SEGMENT_GROUP_NON_LOCAL` (index 1) represents system memory
+      (resources allocated in `D3D12_HEAP_TYPE_UPLOAD`, `D3D12_HEAP_TYPE_READBACK`, or `D3D12_MEMORY_POOL_L0`).
+    - When `IsUMA() == TRUE` (integrated graphics chip):
+      - `DXGI_MEMORY_SEGMENT_GROUP_LOCAL` = (index 0) represents memory shared for all the resources.
+      - `DXGI_MEMORY_SEGMENT_GROUP_NON_LOCAL` = (index 1) is unused and always 0.
+    */
+    DetailedStatistics MemorySegmentGroup[2];
+    /// Total statistics from all memory allocated from D3D12.
+    DetailedStatistics Total;
+};
+
+/** \brief %Statistics of current memory usage and available budget for a specific memory segment group.
+
+These are fast to calculate. See function D3D12MA::Allocator::GetBudget().
+*/
+struct Budget
+{
+    /** \brief %Statistics fetched from the library.
+    */
+    Statistics Stats;
+    /** \brief Estimated current memory usage of the program.
+
+    Fetched from system using `IDXGIAdapter3::QueryVideoMemoryInfo` if possible.
+
+    It might be different than `BlockBytes` (usually higher) due to additional implicit objects
+    also occupying the memory, like swapchain, pipeline state objects, descriptor heaps, command lists, or
+    heaps and resources allocated outside of this library, if any.
+    */
+    UINT64 UsageBytes;
+    /** \brief Estimated amount of memory available to the program.
+
+    Fetched from system using `IDXGIAdapter3::QueryVideoMemoryInfo` if possible.
+
+    It might be different (most probably smaller) than memory capacity returned
+    by D3D12MA::Allocator::GetMemoryCapacity() due to factors
+    external to the program, decided by the operating system.
+    Difference `BudgetBytes - UsageBytes` is the amount of additional memory that can probably
+    be allocated without problems. Exceeding the budget may result in various problems.
+    */
+    UINT64 BudgetBytes;
+};
+
+
+/// \brief Represents single memory allocation done inside VirtualBlock.
+struct D3D12MA_API VirtualAllocation
+{
+    /// \brief Unique idenitfier of current allocation. 0 means null/invalid.
+    AllocHandle AllocHandle;
+};
+
+/** \brief Represents single memory allocation.
+
+It may be either implicit memory heap dedicated to a single resource or a
+specific region of a bigger heap plus unique offset.
+
+To create such object, fill structure D3D12MA::ALLOCATION_DESC and call function
+Allocator::CreateResource.
+
+The object remembers size and some other information.
+To retrieve this information, use methods of this class.
+
+The object also remembers `ID3D12Resource` and "owns" a reference to it,
+so it calls `%Release()` on the resource when destroyed.
+*/
+class D3D12MA_API Allocation : public IUnknownImpl
+{
+public:
+    /** \brief Returns offset in bytes from the start of memory heap.
+
+    You usually don't need to use this offset. If you create a buffer or a texture together with the allocation using function
+    D3D12MA::Allocator::CreateResource, functions that operate on that resource refer to the beginning of the resource,
+    not entire memory heap.
+
+    If the Allocation represents committed resource with implicit heap, returns 0.
+    */
+    UINT64 GetOffset() const;
+
+    /// Returns alignment that resource was created with.
+    UINT64 GetAlignment() const { return m_Alignment; }
+
+    /** \brief Returns size in bytes of the allocation.
+
+    - If you created a buffer or a texture together with the allocation using function D3D12MA::Allocator::CreateResource,
+      this is the size of the resource returned by `ID3D12Device::GetResourceAllocationInfo`.
+    - For allocations made out of bigger memory blocks, this also is the size of the memory region assigned exclusively to this allocation.
+    - For resources created as committed, this value may not be accurate. DirectX implementation may optimize memory usage internally
+      so that you may even observe regions of `ID3D12Resource::GetGPUVirtualAddress()` + Allocation::GetSize() to overlap in memory and still work correctly.
+    */
+    UINT64 GetSize() const { return m_Size; }
+
+    /** \brief Returns D3D12 resource associated with this object.
+
+    Calling this method doesn't increment resource's reference counter.
+    */
+    ID3D12Resource* GetResource() const { return m_Resource; }
+
+    /// Releases the resource currently pointed by the allocation (if any), sets it to new one, incrementing its reference counter (if not null).
+    void SetResource(ID3D12Resource* pResource);
+
+    /** \brief Returns memory heap that the resource is created in.
+
+    If the Allocation represents committed resource with implicit heap, returns NULL.
+    */
+    ID3D12Heap* GetHeap() const;
+
+    /// Changes custom pointer for an allocation to a new value.
+    void SetPrivateData(void* pPrivateData) { m_pPrivateData = pPrivateData; }
+
+    /// Get custom pointer associated with the allocation.
+    void* GetPrivateData() const { return m_pPrivateData; }
+
+    /** \brief Associates a name with the allocation object. This name is for use in debug diagnostics and tools.
+
+    Internal copy of the string is made, so the memory pointed by the argument can be
+    changed of freed immediately after this call.
+
+    `Name` can be null.
+    */
+    void SetName(LPCWSTR Name);
+
+    /** \brief Returns the name associated with the allocation object.
+
+    Returned string points to an internal copy.
+
+    If no name was associated with the allocation, returns null.
+    */
+    LPCWSTR GetName() const { return m_Name; }
+
+    /** \brief Returns `TRUE` if the memory of the allocation was filled with zeros when the allocation was created.
+
+    Returns `TRUE` only if the allocator is sure that the entire memory where the
+    allocation was created was filled with zeros at the moment the allocation was made.
+    
+    Returns `FALSE` if the memory could potentially contain garbage data.
+    If it's a render-target or depth-stencil texture, it then needs proper
+    initialization with `ClearRenderTargetView`, `ClearDepthStencilView`, `DiscardResource`,
+    or a copy operation, as described on page
+    "ID3D12Device::CreatePlacedResource method - Notes on the required resource initialization" in Microsoft documentation.
+    Please note that rendering a fullscreen triangle or quad to the texture as
+    a render target is not a proper way of initialization!
+
+    See also articles:
+
+    - "Coming to DirectX 12: More control over memory allocation" on DirectX Developer Blog
+    - ["Initializing DX12 Textures After Allocation and Aliasing"](https://asawicki.info/news_1724_initializing_dx12_textures_after_allocation_and_aliasing).
+    */
+    BOOL WasZeroInitialized() const { return m_PackedData.WasZeroInitialized(); }
+
+protected:
+    void ReleaseThis() override;
+
+private:
+    friend class AllocatorPimpl;
+    friend class BlockVector;
+    friend class CommittedAllocationList;
+    friend class JsonWriter;
+    friend class BlockMetadata_Linear;
+    friend class DefragmentationContextPimpl;
+    friend struct CommittedAllocationListItemTraits;
+    template<typename T> friend void D3D12MA_DELETE(const ALLOCATION_CALLBACKS&, T*);
+    template<typename T> friend class PoolAllocator;
+
+    enum Type
+    {
+        TYPE_COMMITTED,
+        TYPE_PLACED,
+        TYPE_HEAP,
+        TYPE_COUNT
+    };
+
+    AllocatorPimpl* m_Allocator;
+    UINT64 m_Size;
+    UINT64 m_Alignment;
+    ID3D12Resource* m_Resource;
+    void* m_pPrivateData;
+    wchar_t* m_Name;
+
+    union
+    {
+        struct
+        {
+            CommittedAllocationList* list;
+            Allocation* prev;
+            Allocation* next;
+        } m_Committed;
+
+        struct
+        {
+            AllocHandle allocHandle;
+            NormalBlock* block;
+        } m_Placed;
+
+        struct
+        {
+            // Beginning must be compatible with m_Committed.
+            CommittedAllocationList* list;
+            Allocation* prev;
+            Allocation* next;
+            ID3D12Heap* heap;
+        } m_Heap;
+    };
+
+    struct PackedData
+    {
+    public:
+        PackedData() :
+            m_Type(0), m_ResourceDimension(0), m_ResourceFlags(0), m_TextureLayout(0), m_WasZeroInitialized(0) { }
+
+        Type GetType() const { return (Type)m_Type; }
+        D3D12_RESOURCE_DIMENSION GetResourceDimension() const { return (D3D12_RESOURCE_DIMENSION)m_ResourceDimension; }
+        D3D12_RESOURCE_FLAGS GetResourceFlags() const { return (D3D12_RESOURCE_FLAGS)m_ResourceFlags; }
+        D3D12_TEXTURE_LAYOUT GetTextureLayout() const { return (D3D12_TEXTURE_LAYOUT)m_TextureLayout; }
+        BOOL WasZeroInitialized() const { return (BOOL)m_WasZeroInitialized; }
+
+        void SetType(Type type);
+        void SetResourceDimension(D3D12_RESOURCE_DIMENSION resourceDimension);
+        void SetResourceFlags(D3D12_RESOURCE_FLAGS resourceFlags);
+        void SetTextureLayout(D3D12_TEXTURE_LAYOUT textureLayout);
+        void SetWasZeroInitialized(BOOL wasZeroInitialized) { m_WasZeroInitialized = wasZeroInitialized ? 1 : 0; }
+
+    private:
+        UINT m_Type : 2;               // enum Type
+        UINT m_ResourceDimension : 3;  // enum D3D12_RESOURCE_DIMENSION
+        UINT m_ResourceFlags : 24;     // flags D3D12_RESOURCE_FLAGS
+        UINT m_TextureLayout : 9;      // enum D3D12_TEXTURE_LAYOUT
+        UINT m_WasZeroInitialized : 1; // BOOL
+    } m_PackedData;
+
+    Allocation(AllocatorPimpl* allocator, UINT64 size, UINT64 alignment, BOOL wasZeroInitialized);
+    //  Nothing here, everything already done in Release.
+    virtual ~Allocation() = default;
+
+    void InitCommitted(CommittedAllocationList* list);
+    void InitPlaced(AllocHandle allocHandle, NormalBlock* block);
+    void InitHeap(CommittedAllocationList* list, ID3D12Heap* heap);
+    void SwapBlockAllocation(Allocation* allocation);
+    // If the Allocation represents committed resource with implicit heap, returns UINT64_MAX.
+    AllocHandle GetAllocHandle() const;
+    NormalBlock* GetBlock();
+    template<typename D3D12_RESOURCE_DESC_T>
+    void SetResourcePointer(ID3D12Resource* resource, const D3D12_RESOURCE_DESC_T* pResourceDesc);
+    void FreeName();
+
+    D3D12MA_CLASS_NO_COPY(Allocation)
+};
+
+
+/// Flags to be passed as DEFRAGMENTATION_DESC::Flags.
+enum DEFRAGMENTATION_FLAGS
+{
+    /** Use simple but fast algorithm for defragmentation.
+    May not achieve best results but will require least time to compute and least allocations to copy.
+    */
+    DEFRAGMENTATION_FLAG_ALGORITHM_FAST = 0x1,
+    /** Default defragmentation algorithm, applied also when no `ALGORITHM` flag is specified.
+    Offers a balance between defragmentation quality and the amount of allocations and bytes that need to be moved.
+    */
+    DEFRAGMENTATION_FLAG_ALGORITHM_BALANCED = 0x2,
+    /** Perform full defragmentation of memory.
+    Can result in notably more time to compute and allocations to copy, but will achieve best memory packing.
+    */
+    DEFRAGMENTATION_FLAG_ALGORITHM_FULL = 0x4,
+
+    /// A bit mask to extract only `ALGORITHM` bits from entire set of flags.
+    DEFRAGMENTATION_FLAG_ALGORITHM_MASK =
+        DEFRAGMENTATION_FLAG_ALGORITHM_FAST |
+        DEFRAGMENTATION_FLAG_ALGORITHM_BALANCED |
+        DEFRAGMENTATION_FLAG_ALGORITHM_FULL
+};
+
+/** \brief Parameters for defragmentation.
+
+To be used with functions Allocator::BeginDefragmentation() and Pool::BeginDefragmentation().
+*/
+struct DEFRAGMENTATION_DESC
+{
+    /// Flags.
+    DEFRAGMENTATION_FLAGS Flags;
+    /** \brief Maximum numbers of bytes that can be copied during single pass, while moving allocations to different places.
+
+    0 means no limit.
+    */
+    UINT64 MaxBytesPerPass;
+    /** \brief Maximum number of allocations that can be moved during single pass to a different place.
+
+    0 means no limit.
+    */
+    UINT32 MaxAllocationsPerPass;
+};
+
+/// Operation performed on single defragmentation move.
+enum DEFRAGMENTATION_MOVE_OPERATION
+{
+    /** Resource has been recreated at `pDstTmpAllocation`, data has been copied, old resource has been destroyed.
+    `pSrcAllocation` will be changed to point to the new place. This is the default value set by DefragmentationContext::BeginPass().
+    */
+    DEFRAGMENTATION_MOVE_OPERATION_COPY = 0,
+    /// Set this value if you cannot move the allocation. New place reserved at `pDstTmpAllocation` will be freed. `pSrcAllocation` will remain unchanged.
+    DEFRAGMENTATION_MOVE_OPERATION_IGNORE = 1,
+    /// Set this value if you decide to abandon the allocation and you destroyed the resource. New place reserved `pDstTmpAllocation` will be freed, along with `pSrcAllocation`.
+    DEFRAGMENTATION_MOVE_OPERATION_DESTROY = 2,
+};
+
+/// Single move of an allocation to be done for defragmentation.
+struct DEFRAGMENTATION_MOVE
+{
+    /** \brief Operation to be performed on the allocation by DefragmentationContext::EndPass().
+    Default value is #DEFRAGMENTATION_MOVE_OPERATION_COPY. You can modify it.
+    */
+    DEFRAGMENTATION_MOVE_OPERATION Operation;
+    /// %Allocation that should be moved.
+    Allocation* pSrcAllocation;
+    /** \brief Temporary allocation pointing to destination memory that will replace `pSrcAllocation`.
+
+    Use it to retrieve new `ID3D12Heap` and offset to create new `ID3D12Resource` and then store it here via Allocation::SetResource().
+
+    \warning Do not store this allocation in your data structures! It exists only temporarily, for the duration of the defragmentation pass,
+    to be used for storing newly created resource. DefragmentationContext::EndPass() will destroy it and make `pSrcAllocation` point to this memory.
+    */
+    Allocation* pDstTmpAllocation;
+};
+
+/** \brief Parameters for incremental defragmentation steps.
+
+To be used with function DefragmentationContext::BeginPass().
+*/
+struct DEFRAGMENTATION_PASS_MOVE_INFO
+{
+    /// Number of elements in the `pMoves` array.
+    UINT32 MoveCount;
+    /** \brief Array of moves to be performed by the user in the current defragmentation pass.
+
+    Pointer to an array of `MoveCount` elements, owned by %D3D12MA, created in DefragmentationContext::BeginPass(), destroyed in DefragmentationContext::EndPass().
+
+    For each element, you should:
+
+    1. Create a new resource in the place pointed by `pMoves[i].pDstTmpAllocation->GetHeap()` + `pMoves[i].pDstTmpAllocation->GetOffset()`.
+    2. Store new resource in `pMoves[i].pDstTmpAllocation` by using Allocation::SetResource(). It will later replace old resource from `pMoves[i].pSrcAllocation`.
+    3. Copy data from the `pMoves[i].pSrcAllocation` e.g. using `D3D12GraphicsCommandList::CopyResource`.
+    4. Make sure these commands finished executing on the GPU.
+
+    Only then you can finish defragmentation pass by calling DefragmentationContext::EndPass().
+    After this call, the allocation will point to the new place in memory.
+
+    Alternatively, if you cannot move specific allocation,
+    you can set DEFRAGMENTATION_MOVE::Operation to D3D12MA::DEFRAGMENTATION_MOVE_OPERATION_IGNORE.
+
+    Alternatively, if you decide you want to completely remove the allocation,
+    set DEFRAGMENTATION_MOVE::Operation to D3D12MA::DEFRAGMENTATION_MOVE_OPERATION_DESTROY.
+    Then, after DefragmentationContext::EndPass() the allocation will be released.
+    */
+    DEFRAGMENTATION_MOVE* pMoves;
+};
+
+/// %Statistics returned for defragmentation process by function DefragmentationContext::GetStats().
+struct DEFRAGMENTATION_STATS
+{
+    /// Total number of bytes that have been copied while moving allocations to different places.
+    UINT64 BytesMoved;
+    /// Total number of bytes that have been released to the system by freeing empty heaps.
+    UINT64 BytesFreed;
+    /// Number of allocations that have been moved to different places.
+    UINT32 AllocationsMoved;
+    /// Number of empty `ID3D12Heap` objects that have been released to the system.
+    UINT32 HeapsFreed;
+};
+
+/** \brief Represents defragmentation process in progress.
+
+You can create this object using Allocator::BeginDefragmentation (for default pools) or
+Pool::BeginDefragmentation (for a custom pool).
+*/
+class D3D12MA_API DefragmentationContext : public IUnknownImpl
+{
+public:
+    /** \brief Starts single defragmentation pass.
+
+    \param[out] pPassInfo Computed informations for current pass.
+    \returns
+    - `S_OK` if no more moves are possible. Then you can omit call to DefragmentationContext::EndPass() and simply end whole defragmentation.
+    - `S_FALSE` if there are pending moves returned in `pPassInfo`. You need to perform them, call DefragmentationContext::EndPass(),
+      and then preferably try another pass with DefragmentationContext::BeginPass().
+    */
+    HRESULT BeginPass(DEFRAGMENTATION_PASS_MOVE_INFO* pPassInfo);
+    /** \brief Ends single defragmentation pass.
+
+    \param pPassInfo Computed informations for current pass filled by DefragmentationContext::BeginPass() and possibly modified by you.
+    \return Returns `S_OK` if no more moves are possible or `S_FALSE` if more defragmentations are possible.
+
+    Ends incremental defragmentation pass and commits all defragmentation moves from `pPassInfo`.
+    After this call:
+
+    - %Allocation at `pPassInfo[i].pSrcAllocation` that had `pPassInfo[i].Operation ==` #DEFRAGMENTATION_MOVE_OPERATION_COPY
+      (which is the default) will be pointing to the new destination place.
+    - %Allocation at `pPassInfo[i].pSrcAllocation` that had `pPassInfo[i].operation ==` #DEFRAGMENTATION_MOVE_OPERATION_DESTROY
+      will be released.
+
+    If no more moves are possible you can end whole defragmentation.
+    */
+    HRESULT EndPass(DEFRAGMENTATION_PASS_MOVE_INFO* pPassInfo);
+    /** \brief Returns statistics of the defragmentation performed so far.
+    */
+    void GetStats(DEFRAGMENTATION_STATS* pStats);
+
+protected:
+    void ReleaseThis() override;
+
+private:
+    friend class Pool;
+    friend class Allocator;
+    template<typename T> friend void D3D12MA_DELETE(const ALLOCATION_CALLBACKS&, T*);
+
+    DefragmentationContextPimpl* m_Pimpl;
+
+    DefragmentationContext(AllocatorPimpl* allocator,
+        const DEFRAGMENTATION_DESC& desc,
+        BlockVector* poolVector);
+    ~DefragmentationContext();
+
+    D3D12MA_CLASS_NO_COPY(DefragmentationContext)
+};
+
+/// \brief Bit flags to be used with POOL_DESC::Flags.
+enum POOL_FLAGS
+{
+    /// Zero
+    POOL_FLAG_NONE = 0,
+
+    /** \brief Enables alternative, linear allocation algorithm in this pool.
+
+    Specify this flag to enable linear allocation algorithm, which always creates
+    new allocations after last one and doesn't reuse space from allocations freed in
+    between. It trades memory consumption for simplified algorithm and data
+    structure, which has better performance and uses less memory for metadata.
+
+    By using this flag, you can achieve behavior of free-at-once, stack,
+    ring buffer, and double stack.
+    For details, see documentation chapter \ref linear_algorithm.
+    */
+    POOL_FLAG_ALGORITHM_LINEAR = 0x1,
+
+    /** \brief Optimization, allocate MSAA textures as committed resources always.
+    
+    Specify this flag to create MSAA textures with implicit heaps, as if they were created
+    with flag D3D12MA::ALLOCATION_FLAG_COMMITTED. Usage of this flags enables pool to create its heaps
+    on smaller alignment not suitable for MSAA textures.
+    */
+    POOL_FLAG_MSAA_TEXTURES_ALWAYS_COMMITTED = 0x2,
+
+    // Bit mask to extract only `ALGORITHM` bits from entire set of flags.
+    POOL_FLAG_ALGORITHM_MASK = POOL_FLAG_ALGORITHM_LINEAR
+};
+
+/// \brief Parameters of created D3D12MA::Pool object. To be used with D3D12MA::Allocator::CreatePool.
+struct POOL_DESC
+{
+    /// Flags.
+    POOL_FLAGS Flags;
+    /** \brief The parameters of memory heap where allocations of this pool should be placed.
+
+    In the simplest case, just fill it with zeros and set `Type` to one of: `D3D12_HEAP_TYPE_DEFAULT`,
+    `D3D12_HEAP_TYPE_UPLOAD`, `D3D12_HEAP_TYPE_READBACK`. Additional parameters can be used e.g. to utilize UMA.
+    */
+    D3D12_HEAP_PROPERTIES HeapProperties;
+    /** \brief Heap flags to be used when allocating heaps of this pool.
+
+    It should contain one of these values, depending on type of resources you are going to create in this heap:
+    `D3D12_HEAP_FLAG_ALLOW_ONLY_BUFFERS`,
+    `D3D12_HEAP_FLAG_ALLOW_ONLY_NON_RT_DS_TEXTURES`,
+    `D3D12_HEAP_FLAG_ALLOW_ONLY_RT_DS_TEXTURES`.
+    Except if ResourceHeapTier = 2, then it may be `D3D12_HEAP_FLAG_ALLOW_ALL_BUFFERS_AND_TEXTURES` = 0.
+    
+    You can specify additional flags if needed.
+    */
+    D3D12_HEAP_FLAGS HeapFlags;
+    /** \brief Size of a single heap (memory block) to be allocated as part of this pool, in bytes. Optional.
+
+    Specify nonzero to set explicit, constant size of memory blocks used by this pool.
+    Leave 0 to use default and let the library manage block sizes automatically.
+    Then sizes of particular blocks may vary.
+    */
+    UINT64 BlockSize;
+    /** \brief Minimum number of heaps (memory blocks) to be always allocated in this pool, even if they stay empty. Optional.
+
+    Set to 0 to have no preallocated blocks and allow the pool be completely empty.
+    */
+    UINT MinBlockCount;
+    /** \brief Maximum number of heaps (memory blocks) that can be allocated in this pool. Optional.
+
+    Set to 0 to use default, which is `UINT64_MAX`, which means no limit.
+
+    Set to same value as D3D12MA::POOL_DESC::MinBlockCount to have fixed amount of memory allocated
+    throughout whole lifetime of this pool.
+    */
+    UINT MaxBlockCount;
+    /** \brief Additional minimum alignment to be used for all allocations created from this pool. Can be 0.
+    
+    Leave 0 (default) not to impose any additional alignment. If not 0, it must be a power of two.
+    */
+    UINT64 MinAllocationAlignment;
+    /** \brief Additional parameter allowing pool to create resources with passed protected session.
+    
+    If not null then all the heaps and committed resources will be created with this parameter.
+    Valid only if ID3D12Device4 interface is present in current Windows SDK!
+    */
+    ID3D12ProtectedResourceSession* pProtectedSession;
+    /** \brief Residency priority to be set for all allocations made in this pool. Optional.
+    
+    Set this parameter to one of the possible enum values e.g. `D3D12_RESIDENCY_PRIORITY_HIGH`
+    to apply specific residency priority to all allocations made in this pool:
+    `ID3D12Heap` memory blocks used to sub-allocate for placed resources, as well as
+    committed resources or heaps created when D3D12MA::ALLOCATION_FLAG_COMMITTED is used.
+    This can increase/decrease chance that the memory will be pushed out from VRAM
+    to system RAM when the system runs out of memory, which is invisible to the developer
+    using D3D12 API while it can degrade performance.
+
+    Priority is set using function `ID3D12Device1::SetResidencyPriority`.
+    It is performed only when `ID3D12Device1` interface is defined and successfully obtained.
+    Otherwise, this parameter is ignored.
+
+    This parameter is optional. If you set it to `D3D12_RESIDENCY_PRIORITY(0)`,
+    residency priority will not be set for allocations made in this pool.
+
+    There is no equivalent parameter for allocations made in default pools.
+    If you want to set residency priority for such allocation, you need to do it manually:
+    allocate with D3D12MA::ALLOCATION_FLAG_COMMITTED and call
+    `ID3D12Device1::SetResidencyPriority`, passing `allocation->GetResource()`.
+    */
+    D3D12_RESIDENCY_PRIORITY ResidencyPriority;
+};
+
+/** \brief Custom memory pool
+
+Represents a separate set of heaps (memory blocks) that can be used to create
+D3D12MA::Allocation-s and resources in it. Usually there is no need to create custom
+pools - creating resources in default pool is sufficient.
+
+To create custom pool, fill D3D12MA::POOL_DESC and call D3D12MA::Allocator::CreatePool.
+*/
+class D3D12MA_API Pool : public IUnknownImpl
+{
+public:
+    /** \brief Returns copy of parameters of the pool.
+
+    These are the same parameters as passed to D3D12MA::Allocator::CreatePool.
+    */
+    POOL_DESC GetDesc() const;
+
+    /** \brief Retrieves basic statistics of the custom pool that are fast to calculate.
+
+    \param[out] pStats %Statistics of the current pool.
+    */
+    void GetStatistics(Statistics* pStats);
+
+    /** \brief Retrieves detailed statistics of the custom pool that are slower to calculate.
+
+    \param[out] pStats %Statistics of the current pool.
+    */
+    void CalculateStatistics(DetailedStatistics* pStats);
+
+    /** \brief Associates a name with the pool. This name is for use in debug diagnostics and tools.
+
+    Internal copy of the string is made, so the memory pointed by the argument can be
+    changed of freed immediately after this call.
+
+    `Name` can be NULL.
+    */
+    void SetName(LPCWSTR Name);
+
+    /** \brief Returns the name associated with the pool object.
+
+    Returned string points to an internal copy.
+
+    If no name was associated with the allocation, returns NULL.
+    */
+    LPCWSTR GetName() const;
+
+    /** \brief Begins defragmentation process of the current pool.
+
+    \param pDesc Structure filled with parameters of defragmentation.
+    \param[out] ppContext Context object that will manage defragmentation.
+    \returns
+    - `S_OK` if defragmentation can begin.
+    - `E_NOINTERFACE` if defragmentation is not supported.
+
+    For more information about defragmentation, see documentation chapter:
+    [Defragmentation](@ref defragmentation).
+    */
+    HRESULT BeginDefragmentation(const DEFRAGMENTATION_DESC* pDesc, DefragmentationContext** ppContext);
+
+protected:
+    void ReleaseThis() override;
+
+private:
+    friend class Allocator;
+    friend class AllocatorPimpl;
+    template<typename T> friend void D3D12MA_DELETE(const ALLOCATION_CALLBACKS&, T*);
+
+    PoolPimpl* m_Pimpl;
+
+    Pool(Allocator* allocator, const POOL_DESC &desc);
+    ~Pool();
+
+    D3D12MA_CLASS_NO_COPY(Pool)
+};
+
+
+/// \brief Bit flags to be used with ALLOCATOR_DESC::Flags.
+enum ALLOCATOR_FLAGS
+{
+    /// Zero
+    ALLOCATOR_FLAG_NONE = 0,
+
+    /**
+    Allocator and all objects created from it will not be synchronized internally,
+    so you must guarantee they are used from only one thread at a time or
+    synchronized by you.
+
+    Using this flag may increase performance because internal mutexes are not used.
+    */
+    ALLOCATOR_FLAG_SINGLETHREADED = 0x1,
+
+    /**
+    Every allocation will have its own memory block.
+    To be used for debugging purposes.
+    */
+    ALLOCATOR_FLAG_ALWAYS_COMMITTED = 0x2,
+
+    /**
+    Heaps created for the default pools will be created with flag `D3D12_HEAP_FLAG_CREATE_NOT_ZEROED`,
+    allowing for their memory to be not zeroed by the system if possible,
+    which can speed up allocation.
+
+    Only affects default pools.
+    To use the flag with @ref custom_pools, you need to add it manually:
+
+    \code
+    poolDesc.heapFlags |= D3D12_HEAP_FLAG_CREATE_NOT_ZEROED;
+    \endcode
+
+    Only avaiable if `ID3D12Device8` is present. Otherwise, the flag is ignored.
+    */
+    ALLOCATOR_FLAG_DEFAULT_POOLS_NOT_ZEROED = 0x4,
+
+    /** \brief Optimization, allocate MSAA textures as committed resources always.
+
+    Specify this flag to create MSAA textures with implicit heaps, as if they were created
+    with flag D3D12MA::ALLOCATION_FLAG_COMMITTED. Usage of this flags enables all default pools
+    to create its heaps on smaller alignment not suitable for MSAA textures.
+    */
+    ALLOCATOR_FLAG_MSAA_TEXTURES_ALWAYS_COMMITTED = 0x8,
+};
+
+/// \brief Parameters of created Allocator object. To be used with CreateAllocator().
+struct ALLOCATOR_DESC
+{
+    /// Flags.
+    ALLOCATOR_FLAGS Flags;
+    
+    /** Direct3D device object that the allocator should be attached to.
+
+    Allocator is doing `AddRef`/`Release` on this object.
+    */
+    ID3D12Device* pDevice;
+    
+    /** \brief Preferred size of a single `ID3D12Heap` block to be allocated.
+    
+    Set to 0 to use default, which is currently 64 MiB.
+    */
+    UINT64 PreferredBlockSize;
+    
+    /** \brief Custom CPU memory allocation callbacks. Optional.
+
+    Optional, can be null. When specified, will be used for all CPU-side memory allocations.
+    */
+    const ALLOCATION_CALLBACKS* pAllocationCallbacks;
+
+    /** DXGI Adapter object that you use for D3D12 and this allocator.
+
+    Allocator is doing `AddRef`/`Release` on this object.
+    */
+    IDXGIAdapter* pAdapter;
+};
+
+/**
+\brief Represents main object of this library initialized for particular `ID3D12Device`.
+
+Fill structure D3D12MA::ALLOCATOR_DESC and call function CreateAllocator() to create it.
+Call method `Release()` to destroy it.
+
+It is recommended to create just one object of this type per `ID3D12Device` object,
+right after Direct3D 12 is initialized and keep it alive until before Direct3D device is destroyed.
+*/
+class D3D12MA_API Allocator : public IUnknownImpl
+{
+public:
+    /// Returns cached options retrieved from D3D12 device.
+    const D3D12_FEATURE_DATA_D3D12_OPTIONS& GetD3D12Options() const;
+    /** \brief Returns true if `D3D12_FEATURE_DATA_ARCHITECTURE1::UMA` was found to be true.
+    
+    For more information about how to use it, see articles in Microsoft Docs articles:
+
+    - "UMA Optimizations: CPU Accessible Textures and Standard Swizzle"
+    - "D3D12_FEATURE_DATA_ARCHITECTURE structure (d3d12.h)"
+    - "ID3D12Device::GetCustomHeapProperties method (d3d12.h)"
+    */
+    BOOL IsUMA() const;
+    /** \brief Returns true if `D3D12_FEATURE_DATA_ARCHITECTURE1::CacheCoherentUMA` was found to be true.
+
+    For more information about how to use it, see articles in Microsoft Docs articles:
+
+    - "UMA Optimizations: CPU Accessible Textures and Standard Swizzle"
+    - "D3D12_FEATURE_DATA_ARCHITECTURE structure (d3d12.h)"
+    - "ID3D12Device::GetCustomHeapProperties method (d3d12.h)"
+    */
+    BOOL IsCacheCoherentUMA() const;
+    /** \brief Returns total amount of memory of specific segment group, in bytes.
+    
+    \param memorySegmentGroup use `DXGI_MEMORY_SEGMENT_GROUP_LOCAL` or DXGI_MEMORY_SEGMENT_GROUP_NON_LOCAL`.
+
+    This information is taken from `DXGI_ADAPTER_DESC`.
+    It is not recommended to use this number.
+    You should preferably call GetBudget() and limit memory usage to D3D12MA::Budget::BudgetBytes instead.
+
+    - When IsUMA() `== FALSE` (discrete graphics card):
+      - `GetMemoryCapacity(DXGI_MEMORY_SEGMENT_GROUP_LOCAL)` returns the size of the video memory.
+      - `GetMemoryCapacity(DXGI_MEMORY_SEGMENT_GROUP_NON_LOCAL)` returns the size of the system memory available for D3D12 resources.
+    - When IsUMA() `== TRUE` (integrated graphics chip):
+      - `GetMemoryCapacity(DXGI_MEMORY_SEGMENT_GROUP_LOCAL)` returns the size of the shared memory available for all D3D12 resources.
+        All memory is considered "local".
+      - `GetMemoryCapacity(DXGI_MEMORY_SEGMENT_GROUP_NON_LOCAL)` is not applicable and returns 0.
+    */
+    UINT64 GetMemoryCapacity(UINT memorySegmentGroup) const;
+
+    /** \brief Allocates memory and creates a D3D12 resource (buffer or texture). This is the main allocation function.
+
+    The function is similar to `ID3D12Device::CreateCommittedResource`, but it may
+    really call `ID3D12Device::CreatePlacedResource` to assign part of a larger,
+    existing memory heap to the new resource, which is the main purpose of this
+    whole library.
+
+    If `ppvResource` is null, you receive only `ppAllocation` object from this function.
+    It holds pointer to `ID3D12Resource` that can be queried using function D3D12MA::Allocation::GetResource().
+    Reference count of the resource object is 1.
+    It is automatically destroyed when you destroy the allocation object.
+
+    If `ppvResource` is not null, you receive pointer to the resource next to allocation object.
+    Reference count of the resource object is then increased by calling `QueryInterface`, so you need to manually `Release` it
+    along with the allocation.
+
+    \param pAllocDesc   Parameters of the allocation.
+    \param pResourceDesc   Description of created resource.
+    \param InitialResourceState   Initial resource state.
+    \param pOptimizedClearValue   Optional. Either null or optimized clear value.
+    \param[out] ppAllocation   Filled with pointer to new allocation object created.
+    \param riidResource   IID of a resource to be returned via `ppvResource`.
+    \param[out] ppvResource   Optional. If not null, filled with pointer to new resouce created.
+
+    \note This function creates a new resource. Sub-allocation of parts of one large buffer,
+    although recommended as a good practice, is out of scope of this library and could be implemented
+    by the user as a higher-level logic on top of it, e.g. using the \ref virtual_allocator feature.
+    */
+    HRESULT CreateResource(
+        const ALLOCATION_DESC* pAllocDesc,
+        const D3D12_RESOURCE_DESC* pResourceDesc,
+        D3D12_RESOURCE_STATES InitialResourceState,
+        const D3D12_CLEAR_VALUE *pOptimizedClearValue,
+        Allocation** ppAllocation,
+        REFIID riidResource,
+        void** ppvResource);
+
+#ifdef __ID3D12Device8_INTERFACE_DEFINED__
+    /** \brief Similar to Allocator::CreateResource, but supports new structure `D3D12_RESOURCE_DESC1`.
+    
+    It internally uses `ID3D12Device8::CreateCommittedResource2` or `ID3D12Device8::CreatePlacedResource1`.
+
+    To work correctly, `ID3D12Device8` interface must be available in the current system. Otherwise, `E_NOINTERFACE` is returned.
+    */
+    HRESULT CreateResource2(
+        const ALLOCATION_DESC* pAllocDesc,
+        const D3D12_RESOURCE_DESC1* pResourceDesc,
+        D3D12_RESOURCE_STATES InitialResourceState,
+        const D3D12_CLEAR_VALUE *pOptimizedClearValue,
+        Allocation** ppAllocation,
+        REFIID riidResource,
+        void** ppvResource);
+#endif // #ifdef __ID3D12Device8_INTERFACE_DEFINED__
+
+#ifdef __ID3D12Device10_INTERFACE_DEFINED__
+    /** \brief Similar to Allocator::CreateResource2, but there are initial layout instead of state and 
+    castable formats list
+
+    It internally uses `ID3D12Device10::CreateCommittedResource3` or `ID3D12Device10::CreatePlacedResource2`.
+
+    To work correctly, `ID3D12Device10` interface must be available in the current system. Otherwise, `E_NOINTERFACE` is returned.
+    */
+    HRESULT CreateResource3(const ALLOCATION_DESC* pAllocDesc,
+        const D3D12_RESOURCE_DESC1* pResourceDesc,
+        D3D12_BARRIER_LAYOUT InitialLayout,
+        const D3D12_CLEAR_VALUE* pOptimizedClearValue,
+        UINT32 NumCastableFormats,
+        DXGI_FORMAT* pCastableFormats,
+        Allocation** ppAllocation,
+        REFIID riidResource,
+        void** ppvResource);
+#endif  // #ifdef __ID3D12Device10_INTERFACE_DEFINED__
+
+    /** \brief Allocates memory without creating any resource placed in it.
+
+    This function is similar to `ID3D12Device::CreateHeap`, but it may really assign
+    part of a larger, existing heap to the allocation.
+
+    `pAllocDesc->heapFlags` should contain one of these values, depending on type of resources you are going to create in this memory:
+    `D3D12_HEAP_FLAG_ALLOW_ONLY_BUFFERS`,
+    `D3D12_HEAP_FLAG_ALLOW_ONLY_NON_RT_DS_TEXTURES`,
+    `D3D12_HEAP_FLAG_ALLOW_ONLY_RT_DS_TEXTURES`.
+    Except if you validate that ResourceHeapTier = 2 - then `heapFlags`
+    may be `D3D12_HEAP_FLAG_ALLOW_ALL_BUFFERS_AND_TEXTURES` = 0.
+    Additional flags in `heapFlags` are allowed as well.
+
+    `pAllocInfo->SizeInBytes` must be multiply of 64KB.
+    `pAllocInfo->Alignment` must be one of the legal values as described in documentation of `D3D12_HEAP_DESC`.
+
+    If you use D3D12MA::ALLOCATION_FLAG_COMMITTED you will get a separate memory block -
+    a heap that always has offset 0.
+    */
+    HRESULT AllocateMemory(
+        const ALLOCATION_DESC* pAllocDesc,
+        const D3D12_RESOURCE_ALLOCATION_INFO* pAllocInfo,
+        Allocation** ppAllocation);
+
+    /** \brief Creates a new resource in place of an existing allocation. This is useful for memory aliasing.
+
+    \param pAllocation Existing allocation indicating the memory where the new resource should be created.
+        It can be created using D3D12MA::Allocator::CreateResource and already have a resource bound to it,
+        or can be a raw memory allocated with D3D12MA::Allocator::AllocateMemory.
+        It must not be created as committed so that `ID3D12Heap` is available and not implicit.
+    \param AllocationLocalOffset Additional offset in bytes to be applied when allocating the resource.
+        Local from the start of `pAllocation`, not the beginning of the whole `ID3D12Heap`!
+        If the new resource should start from the beginning of the `pAllocation` it should be 0.
+    \param pResourceDesc Description of the new resource to be created.
+    \param InitialResourceState
+    \param pOptimizedClearValue
+    \param riidResource
+    \param[out] ppvResource Returns pointer to the new resource.
+        The resource is not bound with `pAllocation`.
+        This pointer must not be null - you must get the resource pointer and `Release` it when no longer needed.
+
+    Memory requirements of the new resource are checked for validation.
+    If its size exceeds the end of `pAllocation` or required alignment is not fulfilled
+    considering `pAllocation->GetOffset() + AllocationLocalOffset`, the function
+    returns `E_INVALIDARG`.
+    */
+    HRESULT CreateAliasingResource(
+        Allocation* pAllocation,
+        UINT64 AllocationLocalOffset,
+        const D3D12_RESOURCE_DESC* pResourceDesc,
+        D3D12_RESOURCE_STATES InitialResourceState,
+        const D3D12_CLEAR_VALUE *pOptimizedClearValue,
+        REFIID riidResource,
+        void** ppvResource);
+
+#ifdef __ID3D12Device8_INTERFACE_DEFINED__
+    /** \brief Similar to Allocator::CreateAliasingResource, but supports new structure `D3D12_RESOURCE_DESC1`.
+    
+    It internally uses `ID3D12Device8::CreatePlacedResource1`.
+
+    To work correctly, `ID3D12Device8` interface must be available in the current system. Otherwise, `E_NOINTERFACE` is returned.
+    */
+    HRESULT CreateAliasingResource1(Allocation* pAllocation,
+        UINT64 AllocationLocalOffset,
+        const D3D12_RESOURCE_DESC1* pResourceDesc,
+        D3D12_RESOURCE_STATES InitialResourceState,
+        const D3D12_CLEAR_VALUE* pOptimizedClearValue,
+        REFIID riidResource,
+        void** ppvResource);
+#endif // #ifdef __ID3D12Device8_INTERFACE_DEFINED__
+
+#ifdef __ID3D12Device10_INTERFACE_DEFINED__
+    /** \brief Similar to Allocator::CreateAliasingResource1, but there are initial layout instead of state and 
+    castable formats list
+
+    It internally uses `ID3D12Device10::CreatePlacedResource2`.
+
+    To work correctly, `ID3D12Device10` interface must be available in the current system. Otherwise, `E_NOINTERFACE` is returned.
+    */
+    HRESULT CreateAliasingResource2(Allocation* pAllocation,
+        UINT64 AllocationLocalOffset,
+        const D3D12_RESOURCE_DESC1* pResourceDesc,
+        D3D12_BARRIER_LAYOUT InitialLayout,
+        const D3D12_CLEAR_VALUE* pOptimizedClearValue,
+        UINT32 NumCastableFormats,
+        DXGI_FORMAT* pCastableFormats,
+        REFIID riidResource,
+        void** ppvResource);
+#endif  // #ifdef __ID3D12Device10_INTERFACE_DEFINED__
+
+    /** \brief Creates custom pool.
+    */
+    HRESULT CreatePool(
+        const POOL_DESC* pPoolDesc,
+        Pool** ppPool);
+
+    /** \brief Sets the index of the current frame.
+
+    This function is used to set the frame index in the allocator when a new game frame begins.
+    */
+    void SetCurrentFrameIndex(UINT frameIndex);
+
+    /** \brief Retrieves information about current memory usage and budget.
+
+    \param[out] pLocalBudget Optional, can be null.
+    \param[out] pNonLocalBudget Optional, can be null.
+
+    - When IsUMA() `== FALSE` (discrete graphics card):
+      - `pLocalBudget` returns the budget of the video memory.
+      - `pNonLocalBudget` returns the budget of the system memory available for D3D12 resources.
+    - When IsUMA() `== TRUE` (integrated graphics chip):
+      - `pLocalBudget` returns the budget of the shared memory available for all D3D12 resources.
+        All memory is considered "local".
+      - `pNonLocalBudget` is not applicable and returns zeros.
+
+    This function is called "get" not "calculate" because it is very fast, suitable to be called
+    every frame or every allocation. For more detailed statistics use CalculateStatistics().
+
+    Note that when using allocator from multiple threads, returned information may immediately
+    become outdated.
+    */
+    void GetBudget(Budget* pLocalBudget, Budget* pNonLocalBudget);
+
+    /** \brief Retrieves statistics from current state of the allocator.
+
+    This function is called "calculate" not "get" because it has to traverse all
+    internal data structures, so it may be quite slow. Use it for debugging purposes.
+    For faster but more brief statistics suitable to be called every frame or every allocation,
+    use GetBudget().
+
+    Note that when using allocator from multiple threads, returned information may immediately
+    become outdated.
+    */
+    void CalculateStatistics(TotalStatistics* pStats);
+
+    /** \brief Builds and returns statistics as a string in JSON format.
+    * 
+    @param[out] ppStatsString Must be freed using Allocator::FreeStatsString.
+    @param DetailedMap `TRUE` to include full list of allocations (can make the string quite long), `FALSE` to only return statistics.
+    */
+    void BuildStatsString(WCHAR** ppStatsString, BOOL DetailedMap) const;
+
+    /// Frees memory of a string returned from Allocator::BuildStatsString.
+    void FreeStatsString(WCHAR* pStatsString) const;
+
+    /** \brief Begins defragmentation process of the default pools.
+
+    \param pDesc Structure filled with parameters of defragmentation.
+    \param[out] ppContext Context object that will manage defragmentation.
+
+    For more information about defragmentation, see documentation chapter:
+    [Defragmentation](@ref defragmentation).
+    */
+    void BeginDefragmentation(const DEFRAGMENTATION_DESC* pDesc, DefragmentationContext** ppContext);
+
+protected:
+    void ReleaseThis() override;
+
+private:
+    friend D3D12MA_API HRESULT CreateAllocator(const ALLOCATOR_DESC*, Allocator**);
+    template<typename T> friend void D3D12MA_DELETE(const ALLOCATION_CALLBACKS&, T*);
+    friend class DefragmentationContext;
+    friend class Pool;
+
+    Allocator(const ALLOCATION_CALLBACKS& allocationCallbacks, const ALLOCATOR_DESC& desc);
+    ~Allocator();
+    
+    AllocatorPimpl* m_Pimpl;
+    
+    D3D12MA_CLASS_NO_COPY(Allocator)
+};
+
+
+/// \brief Bit flags to be used with VIRTUAL_BLOCK_DESC::Flags.
+enum VIRTUAL_BLOCK_FLAGS
+{
+    /// Zero
+    VIRTUAL_BLOCK_FLAG_NONE = 0,
+
+    /** \brief Enables alternative, linear allocation algorithm in this virtual block.
+
+    Specify this flag to enable linear allocation algorithm, which always creates
+    new allocations after last one and doesn't reuse space from allocations freed in
+    between. It trades memory consumption for simplified algorithm and data
+    structure, which has better performance and uses less memory for metadata.
+
+    By using this flag, you can achieve behavior of free-at-once, stack,
+    ring buffer, and double stack.
+    For details, see documentation chapter \ref linear_algorithm.
+    */
+    VIRTUAL_BLOCK_FLAG_ALGORITHM_LINEAR = POOL_FLAG_ALGORITHM_LINEAR,
+
+    // Bit mask to extract only `ALGORITHM` bits from entire set of flags.
+    VIRTUAL_BLOCK_FLAG_ALGORITHM_MASK = POOL_FLAG_ALGORITHM_MASK
+};
+
+/// Parameters of created D3D12MA::VirtualBlock object to be passed to CreateVirtualBlock().
+struct VIRTUAL_BLOCK_DESC
+{
+    /// Flags.
+    VIRTUAL_BLOCK_FLAGS Flags;
+    /** \brief Total size of the block.
+
+    Sizes can be expressed in bytes or any units you want as long as you are consistent in using them.
+    For example, if you allocate from some array of structures, 1 can mean single instance of entire structure.
+    */
+    UINT64 Size;
+    /** \brief Custom CPU memory allocation callbacks. Optional.
+
+    Optional, can be null. When specified, will be used for all CPU-side memory allocations.
+    */
+    const ALLOCATION_CALLBACKS* pAllocationCallbacks;
+};
+
+/// \brief Bit flags to be used with VIRTUAL_ALLOCATION_DESC::Flags.
+enum VIRTUAL_ALLOCATION_FLAGS
+{
+    /// Zero
+    VIRTUAL_ALLOCATION_FLAG_NONE = 0,
+
+    /** \brief Allocation will be created from upper stack in a double stack pool.
+
+    This flag is only allowed for virtual blocks created with #VIRTUAL_BLOCK_FLAG_ALGORITHM_LINEAR flag.
+    */
+    VIRTUAL_ALLOCATION_FLAG_UPPER_ADDRESS = ALLOCATION_FLAG_UPPER_ADDRESS,
+
+    /// Allocation strategy that tries to minimize memory usage.
+    VIRTUAL_ALLOCATION_FLAG_STRATEGY_MIN_MEMORY = ALLOCATION_FLAG_STRATEGY_MIN_MEMORY,
+    /// Allocation strategy that tries to minimize allocation time.
+    VIRTUAL_ALLOCATION_FLAG_STRATEGY_MIN_TIME = ALLOCATION_FLAG_STRATEGY_MIN_TIME,
+    /** \brief Allocation strategy that chooses always the lowest offset in available space.
+    This is not the most efficient strategy but achieves highly packed data.
+    */
+    VIRTUAL_ALLOCATION_FLAG_STRATEGY_MIN_OFFSET = ALLOCATION_FLAG_STRATEGY_MIN_OFFSET,
+    /** \brief A bit mask to extract only `STRATEGY` bits from entire set of flags.
+
+    These strategy flags are binary compatible with equivalent flags in #ALLOCATION_FLAGS.
+    */
+    VIRTUAL_ALLOCATION_FLAG_STRATEGY_MASK = ALLOCATION_FLAG_STRATEGY_MASK,
+};
+
+/// Parameters of created virtual allocation to be passed to VirtualBlock::Allocate().
+struct VIRTUAL_ALLOCATION_DESC
+{
+    /// Flags.
+    VIRTUAL_ALLOCATION_FLAGS Flags;
+    /** \brief Size of the allocation.
+    
+    Cannot be zero.
+    */
+    UINT64 Size;
+    /** \brief Required alignment of the allocation.
+    
+    Must be power of two. Special value 0 has the same meaning as 1 - means no special alignment is required, so allocation can start at any offset.
+    */
+    UINT64 Alignment;
+    /** \brief Custom pointer to be associated with the allocation.
+
+    It can be fetched or changed later.
+    */
+    void* pPrivateData;
+};
+
+/// Parameters of an existing virtual allocation, returned by VirtualBlock::GetAllocationInfo().
+struct VIRTUAL_ALLOCATION_INFO
+{
+    /// \brief Offset of the allocation.
+    UINT64 Offset;
+    /** \brief Size of the allocation.
+
+    Same value as passed in VIRTUAL_ALLOCATION_DESC::Size.
+    */
+    UINT64 Size;
+    /** \brief Custom pointer associated with the allocation.
+
+    Same value as passed in VIRTUAL_ALLOCATION_DESC::pPrivateData or VirtualBlock::SetAllocationPrivateData().
+    */
+    void* pPrivateData;
+};
+
+/** \brief Represents pure allocation algorithm and a data structure with allocations in some memory block, without actually allocating any GPU memory.
+
+This class allows to use the core algorithm of the library custom allocations e.g. CPU memory or
+sub-allocation regions inside a single GPU buffer.
+
+To create this object, fill in D3D12MA::VIRTUAL_BLOCK_DESC and call CreateVirtualBlock().
+To destroy it, call its method `VirtualBlock::Release()`.
+You need to free all the allocations within this block or call Clear() before destroying it.
+
+This object is not thread-safe - should not be used from multiple threads simultaneously, must be synchronized externally.
+*/
+class D3D12MA_API VirtualBlock : public IUnknownImpl
+{
+public:
+    /** \brief Returns true if the block is empty - contains 0 allocations.
+    */
+    BOOL IsEmpty() const;
+    /** \brief Returns information about an allocation - its offset, size and custom pointer.
+    */
+    void GetAllocationInfo(VirtualAllocation allocation, VIRTUAL_ALLOCATION_INFO* pInfo) const;
+
+    /** \brief Creates new allocation.
+    \param pDesc
+    \param[out] pAllocation Unique indentifier of the new allocation within single block.
+    \param[out] pOffset Returned offset of the new allocation. Optional, can be null.
+    \return `S_OK` if allocation succeeded, `E_OUTOFMEMORY` if it failed.
+
+    If the allocation failed, `pAllocation->AllocHandle` is set to 0 and `pOffset`, if not null, is set to `UINT64_MAX`.
+    */
+    HRESULT Allocate(const VIRTUAL_ALLOCATION_DESC* pDesc, VirtualAllocation* pAllocation, UINT64* pOffset);
+    /** \brief Frees the allocation.
+    
+    Calling this function with `allocation.AllocHandle == 0` is correct and does nothing.
+    */
+    void FreeAllocation(VirtualAllocation allocation);
+    /** \brief Frees all the allocations.
+    */
+    void Clear();
+    /** \brief Changes custom pointer for an allocation to a new value.
+    */
+    void SetAllocationPrivateData(VirtualAllocation allocation, void* pPrivateData);
+    /** \brief Retrieves basic statistics of the virtual block that are fast to calculate.
+
+    \param[out] pStats %Statistics of the virtual block.
+    */
+    void GetStatistics(Statistics* pStats) const;
+    /** \brief Retrieves detailed statistics of the virtual block that are slower to calculate.
+
+    \param[out] pStats %Statistics of the virtual block.
+    */
+    void CalculateStatistics(DetailedStatistics* pStats) const;
+
+    /** \brief Builds and returns statistics as a string in JSON format, including the list of allocations with their parameters.
+    @param[out] ppStatsString Must be freed using VirtualBlock::FreeStatsString.
+    */
+    void BuildStatsString(WCHAR** ppStatsString) const;
+
+    /** \brief Frees memory of a string returned from VirtualBlock::BuildStatsString.
+    */
+    void FreeStatsString(WCHAR* pStatsString) const;
+   
+protected:
+    void ReleaseThis() override;
+
+private:
+    friend D3D12MA_API HRESULT CreateVirtualBlock(const VIRTUAL_BLOCK_DESC*, VirtualBlock**);
+    template<typename T> friend void D3D12MA_DELETE(const ALLOCATION_CALLBACKS&, T*);
+
+    VirtualBlockPimpl* m_Pimpl;
+
+    VirtualBlock(const ALLOCATION_CALLBACKS& allocationCallbacks, const VIRTUAL_BLOCK_DESC& desc);
+    ~VirtualBlock();
+
+    D3D12MA_CLASS_NO_COPY(VirtualBlock)
+};
+
+
+/** \brief Creates new main D3D12MA::Allocator object and returns it through `ppAllocator`.
+
+You normally only need to call it once and keep a single Allocator object for your `ID3D12Device`.
+*/
+D3D12MA_API HRESULT CreateAllocator(const ALLOCATOR_DESC* pDesc, Allocator** ppAllocator);
+
+/** \brief Creates new D3D12MA::VirtualBlock object and returns it through `ppVirtualBlock`.
+
+Note you don't need to create D3D12MA::Allocator to use virtual blocks.
+*/
+D3D12MA_API HRESULT CreateVirtualBlock(const VIRTUAL_BLOCK_DESC* pDesc, VirtualBlock** ppVirtualBlock);
+
+} // namespace D3D12MA
+
+/// \cond INTERNAL
+DEFINE_ENUM_FLAG_OPERATORS(D3D12MA::ALLOCATION_FLAGS);
+DEFINE_ENUM_FLAG_OPERATORS(D3D12MA::DEFRAGMENTATION_FLAGS);
+DEFINE_ENUM_FLAG_OPERATORS(D3D12MA::ALLOCATOR_FLAGS);
+DEFINE_ENUM_FLAG_OPERATORS(D3D12MA::POOL_FLAGS);
+DEFINE_ENUM_FLAG_OPERATORS(D3D12MA::VIRTUAL_BLOCK_FLAGS);
+DEFINE_ENUM_FLAG_OPERATORS(D3D12MA::VIRTUAL_ALLOCATION_FLAGS);
+/// \endcond
+
+/**
+\page quick_start Quick start
+
+\section quick_start_project_setup Project setup and initialization
+
+This is a small, standalone C++ library. It consists of a pair of 2 files:
+"D3D12MemAlloc.h" header file with public interface and "D3D12MemAlloc.cpp" with
+internal implementation. The only external dependencies are WinAPI, Direct3D 12,
+and parts of C/C++ standard library (but STL containers, exceptions, or RTTI are
+not used).
+
+The library is developed and tested using Microsoft Visual Studio 2019, but it
+should work with other compilers as well. It is designed for 64-bit code.
+
+To use the library in your project:
+
+(1.) Copy files `D3D12MemAlloc.cpp`, `%D3D12MemAlloc.h` to your project.
+
+(2.) Make `D3D12MemAlloc.cpp` compiling as part of the project, as C++ code.
+
+(3.) Include library header in each CPP file that needs to use the library.
+
+\code
+#include "D3D12MemAlloc.h"
+\endcode
+
+(4.) Right after you created `ID3D12Device`, fill D3D12MA::ALLOCATOR_DESC
+structure and call function D3D12MA::CreateAllocator to create the main
+D3D12MA::Allocator object.
+
+Please note that all symbols of the library are declared inside #D3D12MA namespace.
+
+\code
+IDXGIAdapter* adapter = (...)
+ID3D12Device* device = (...)
+
+D3D12MA::ALLOCATOR_DESC allocatorDesc = {};
+allocatorDesc.pDevice = device;
+allocatorDesc.pAdapter = adapter;
+
+D3D12MA::Allocator* allocator;
+HRESULT hr = D3D12MA::CreateAllocator(&allocatorDesc, &allocator);
+\endcode
+
+(5.) Right before destroying the D3D12 device, destroy the allocator object.
+
+Objects of this library must be destroyed by calling `Release` method.
+They are somewhat compatible with COM: they implement `IUnknown` interface with its virtual methods: `AddRef`, `Release`, `QueryInterface`,
+and they are reference-counted internally.
+You can use smart pointers designed for COM with objects of this library - e.g. `CComPtr` or `Microsoft::WRL::ComPtr`.
+The reference counter is thread-safe.
+`QueryInterface` method supports only `IUnknown`, as classes of this library don't define their own GUIDs.
+
+\code
+allocator->Release();
+\endcode
+
+
+\section quick_start_creating_resources Creating resources
+
+To use the library for creating resources (textures and buffers), call method
+D3D12MA::Allocator::CreateResource in the place where you would previously call
+`ID3D12Device::CreateCommittedResource`.
+
+The function has similar syntax, but it expects structure D3D12MA::ALLOCATION_DESC
+to be passed along with `D3D12_RESOURCE_DESC` and other parameters for created
+resource. This structure describes parameters of the desired memory allocation,
+including choice of `D3D12_HEAP_TYPE`.
+
+The function returns a new object of type D3D12MA::Allocation.
+It represents allocated memory and can be queried for size, offset, `ID3D12Heap`.
+It also holds a reference to the `ID3D12Resource`, which can be accessed by calling D3D12MA::Allocation::GetResource().
+
+\code
+D3D12_RESOURCE_DESC resourceDesc = {};
+resourceDesc.Dimension = D3D12_RESOURCE_DIMENSION_TEXTURE2D;
+resourceDesc.Alignment = 0;
+resourceDesc.Width = 1024;
+resourceDesc.Height = 1024;
+resourceDesc.DepthOrArraySize = 1;
+resourceDesc.MipLevels = 1;
+resourceDesc.Format = DXGI_FORMAT_R8G8B8A8_UNORM;
+resourceDesc.SampleDesc.Count = 1;
+resourceDesc.SampleDesc.Quality = 0;
+resourceDesc.Layout = D3D12_TEXTURE_LAYOUT_UNKNOWN;
+resourceDesc.Flags = D3D12_RESOURCE_FLAG_NONE;
+
+D3D12MA::ALLOCATION_DESC allocationDesc = {};
+allocationDesc.HeapType = D3D12_HEAP_TYPE_DEFAULT;
+
+D3D12MA::Allocation* allocation;
+HRESULT hr = allocator->CreateResource(
+    &allocationDesc,
+    &resourceDesc,
+    D3D12_RESOURCE_STATE_COPY_DEST,
+    NULL,
+    &allocation,
+    IID_NULL, NULL);
+
+// Use allocation->GetResource()...
+\endcode
+
+You need to release the allocation object when no longer needed.
+This will also release the D3D12 resource.
+
+\code
+allocation->Release();
+\endcode
+
+The advantage of using the allocator instead of creating committed resource, and
+the main purpose of this library, is that it can decide to allocate bigger memory
+heap internally using `ID3D12Device::CreateHeap` and place multiple resources in
+it, at different offsets, using `ID3D12Device::CreatePlacedResource`. The library
+manages its own collection of allocated memory blocks (heaps) and remembers which
+parts of them are occupied and which parts are free to be used for new resources.
+
+It is important to remember that resources created as placed don't have their memory
+initialized to zeros, but may contain garbage data, so they need to be fully initialized
+before usage, e.g. using Clear (`ClearRenderTargetView`), Discard (`DiscardResource`),
+or copy (`CopyResource`).
+
+The library also automatically handles resource heap tier.
+When `D3D12_FEATURE_DATA_D3D12_OPTIONS::ResourceHeapTier` equals `D3D12_RESOURCE_HEAP_TIER_1`,
+resources of 3 types: buffers, textures that are render targets or depth-stencil,
+and other textures must be kept in separate heaps. When `D3D12_RESOURCE_HEAP_TIER_2`,
+they can be kept together. By using this library, you don't need to handle this
+manually.
+
+
+\section quick_start_resource_reference_counting Resource reference counting
+
+`ID3D12Resource` and other interfaces of Direct3D 12 use COM, so they are reference-counted.
+Objects of this library are reference-counted as well.
+An object of type D3D12MA::Allocation remembers the resource (buffer or texture)
+that was created together with this memory allocation
+and holds a reference to the `ID3D12Resource` object.
+(Note this is a difference to Vulkan Memory Allocator, where a `VmaAllocation` object has no connection
+with the buffer or image that was created with it.)
+Thus, it is important to manage the resource reference counter properly.
+
+<b>The simplest use case</b> is shown in the code snippet above.
+When only D3D12MA::Allocation object is obtained from a function call like D3D12MA::Allocator::CreateResource,
+it remembers the `ID3D12Resource` that was created with it and holds a reference to it.
+The resource can be obtained by calling `allocation->GetResource()`, which doesn't increment the resource
+reference counter.
+Calling `allocation->Release()` will decrease the resource reference counter, which is = 1 in this case,
+so the resource will be released.
+
+<b>Second option</b> is to retrieve a pointer to the resource along with D3D12MA::Allocation.
+Last parameters of the resource creation function can be used for this purpose.
+
+\code
+D3D12MA::Allocation* allocation;
+ID3D12Resource* resource;
+HRESULT hr = allocator->CreateResource(
+    &allocationDesc,
+    &resourceDesc,
+    D3D12_RESOURCE_STATE_COPY_DEST,
+    NULL,
+    &allocation,
+    IID_PPV_ARGS(&resource));
+
+// Use resource...
+\endcode
+
+In this case, returned pointer `resource` is equal to `allocation->GetResource()`,
+but the creation function additionally increases resource reference counter for the purpose of returning it from this call
+(it actually calls `QueryInterface` internally), so the resource will have the counter = 2.
+The resource then need to be released along with the allocation, in this particular order,
+to make sure the resource is destroyed before its memory heap can potentially be freed.
+
+\code
+resource->Release();
+allocation->Release();
+\endcode
+
+<b>More advanced use cases</b> are possible when we consider that an D3D12MA::Allocation object can just hold
+a reference to any resource.
+It can be changed by calling D3D12MA::Allocation::SetResource. This function
+releases the old resource and calls `AddRef` on the new one.
+
+Special care must be taken when performing <b>defragmentation</b>.
+The new resource created at the destination place should be set as `pass.pMoves[i].pDstTmpAllocation->SetResource(newRes)`,
+but it is moved to the source allocation at end of the defragmentation pass,
+while the old resource accessible through `pass.pMoves[i].pSrcAllocation->GetResource()` is then released.
+For more information, see documentation chapter \ref defragmentation.
+
+
+\section quick_start_mapping_memory Mapping memory
+
+The process of getting regular CPU-side pointer to the memory of a resource in
+Direct3D is called "mapping". There are rules and restrictions to this process,
+as described in D3D12 documentation of `ID3D12Resource::Map` method.
+
+Mapping happens on the level of particular resources, not entire memory heaps,
+and so it is out of scope of this library. Just as the documentation of the `Map` function says:
+
+- Returned pointer refers to data of particular subresource, not entire memory heap.
+- You can map same resource multiple times. It is ref-counted internally.
+- Mapping is thread-safe.
+- Unmapping is not required before resource destruction.
+- Unmapping may not be required before using written data - some heap types on
+  some platforms support resources persistently mapped.
+
+When using this library, you can map and use your resources normally without
+considering whether they are created as committed resources or placed resources in one large heap.
+
+Example for buffer created and filled in `UPLOAD` heap type:
+
+\code
+const UINT64 bufSize = 65536;
+const float* bufData = (...);
+
+D3D12_RESOURCE_DESC resourceDesc = {};
+resourceDesc.Dimension = D3D12_RESOURCE_DIMENSION_BUFFER;
+resourceDesc.Alignment = 0;
+resourceDesc.Width = bufSize;
+resourceDesc.Height = 1;
+resourceDesc.DepthOrArraySize = 1;
+resourceDesc.MipLevels = 1;
+resourceDesc.Format = DXGI_FORMAT_UNKNOWN;
+resourceDesc.SampleDesc.Count = 1;
+resourceDesc.SampleDesc.Quality = 0;
+resourceDesc.Layout = D3D12_TEXTURE_LAYOUT_ROW_MAJOR;
+resourceDesc.Flags = D3D12_RESOURCE_FLAG_NONE;
+
+D3D12MA::ALLOCATION_DESC allocationDesc = {};
+allocationDesc.HeapType = D3D12_HEAP_TYPE_UPLOAD;
+
+D3D12Resource* resource;
+D3D12MA::Allocation* allocation;
+HRESULT hr = allocator->CreateResource(
+    &allocationDesc,
+    &resourceDesc,
+    D3D12_RESOURCE_STATE_GENERIC_READ,
+    NULL,
+    &allocation,
+    IID_PPV_ARGS(&resource));
+
+void* mappedPtr;
+hr = resource->Map(0, NULL, &mappedPtr);
+
+memcpy(mappedPtr, bufData, bufSize);
+
+resource->Unmap(0, NULL);
+\endcode
+
+
+\page custom_pools Custom memory pools
+
+A "pool" is a collection of memory blocks that share certain properties.
+Allocator creates 3 default pools: for `D3D12_HEAP_TYPE_DEFAULT`, `UPLOAD`, `READBACK`.
+A default pool automatically grows in size. Size of allocated blocks is also variable and managed automatically.
+Typical allocations are created in these pools. You can also create custom pools.
+
+\section custom_pools_usage Usage
+
+To create a custom pool, fill in structure D3D12MA::POOL_DESC and call function D3D12MA::Allocator::CreatePool
+to obtain object D3D12MA::Pool. Example:
+
+\code
+POOL_DESC poolDesc = {};
+poolDesc.HeapProperties.Type = D3D12_HEAP_TYPE_DEFAULT;
+
+Pool* pool;
+HRESULT hr = allocator->CreatePool(&poolDesc, &pool);
+\endcode
+
+To allocate resources out of a custom pool, only set member D3D12MA::ALLOCATION_DESC::CustomPool.
+Example:
+
+\code
+ALLOCATION_DESC allocDesc = {};
+allocDesc.CustomPool = pool;
+
+D3D12_RESOURCE_DESC resDesc = ...
+Allocation* alloc;
+hr = allocator->CreateResource(&allocDesc, &resDesc,
+    D3D12_RESOURCE_STATE_GENERIC_READ, NULL, &alloc, IID_NULL, NULL);
+\endcode
+
+All allocations must be released before releasing the pool.
+The pool must be released before relasing the allocator.
+
+\code
+alloc->Release();
+pool->Release();
+\endcode
+
+\section custom_pools_features_and_benefits Features and benefits
+
+While it is recommended to use default pools whenever possible for simplicity and to give the allocator
+more opportunities for internal optimizations, custom pools may be useful in following cases:
+
+- To keep some resources separate from others in memory.
+- To keep track of memory usage of just a specific group of resources. %Statistics can be queried using
+  D3D12MA::Pool::CalculateStatistics.
+- To use specific size of a memory block (`ID3D12Heap`). To set it, use member D3D12MA::POOL_DESC::BlockSize.
+  When set to 0, the library uses automatically determined, variable block sizes.
+- To reserve some minimum amount of memory allocated. To use it, set member D3D12MA::POOL_DESC::MinBlockCount.
+- To limit maximum amount of memory allocated. To use it, set member D3D12MA::POOL_DESC::MaxBlockCount.
+- To use extended parameters of the D3D12 memory allocation. While resources created from default pools
+  can only specify `D3D12_HEAP_TYPE_DEFAULT`, `UPLOAD`, `READBACK`, a custom pool may use non-standard
+  `D3D12_HEAP_PROPERTIES` (member D3D12MA::POOL_DESC::HeapProperties) and `D3D12_HEAP_FLAGS`
+  (D3D12MA::POOL_DESC::HeapFlags), which is useful e.g. for cross-adapter sharing or UMA
+  (see also D3D12MA::Allocator::IsUMA).
+
+New versions of this library support creating **committed allocations in custom pools**.
+It is supported only when D3D12MA::POOL_DESC::BlockSize = 0.
+To use this feature, set D3D12MA::ALLOCATION_DESC::CustomPool to the pointer to your custom pool and
+D3D12MA::ALLOCATION_DESC::Flags to D3D12MA::ALLOCATION_FLAG_COMMITTED. Example:
+
+\code
+ALLOCATION_DESC allocDesc = {};
+allocDesc.CustomPool = pool;
+allocDesc.Flags = ALLOCATION_FLAG_COMMITTED;
+
+D3D12_RESOURCE_DESC resDesc = ...
+Allocation* alloc;
+ID3D12Resource* res;
+hr = allocator->CreateResource(&allocDesc, &resDesc,
+    D3D12_RESOURCE_STATE_GENERIC_READ, NULL, &alloc, IID_PPV_ARGS(&res));
+\endcode
+
+This feature may seem unnecessary, but creating committed allocations from custom pools may be useful
+in some cases, e.g. to have separate memory usage statistics for some group of resources or to use
+extended allocation parameters, like custom `D3D12_HEAP_PROPERTIES`, which are available only in custom pools.
+
+
+\page defragmentation Defragmentation
+
+Interleaved allocations and deallocations of many objects of varying size can
+cause fragmentation over time, which can lead to a situation where the library is unable
+to find a continuous range of free memory for a new allocation despite there is
+enough free space, just scattered across many small free ranges between existing
+allocations.
+
+To mitigate this problem, you can use defragmentation feature.
+It doesn't happen automatically though and needs your cooperation,
+because %D3D12MA is a low level library that only allocates memory.
+It cannot recreate buffers and textures in a new place as it doesn't remember the contents of `D3D12_RESOURCE_DESC` structure.
+It cannot copy their contents as it doesn't record any commands to a command list.
+
+Example:
+
+\code
+D3D12MA::DEFRAGMENTATION_DESC defragDesc = {};
+defragDesc.Flags = D3D12MA::DEFRAGMENTATION_FLAG_ALGORITHM_FAST;
+
+D3D12MA::DefragmentationContext* defragCtx;
+allocator->BeginDefragmentation(&defragDesc, &defragCtx);
+
+for(;;)
+{
+    D3D12MA::DEFRAGMENTATION_PASS_MOVE_INFO pass;
+    HRESULT hr = defragCtx->BeginPass(&pass);
+    if(hr == S_OK)
+        break;
+    else if(hr != S_FALSE)
+        // Handle error...
+
+    for(UINT i = 0; i < pass.MoveCount; ++i)
+    {
+        // Inspect pass.pMoves[i].pSrcAllocation, identify what buffer/texture it represents.
+        MyEngineResourceData* resData = (MyEngineResourceData*)pMoves[i].pSrcAllocation->GetPrivateData();
+            
+        // Recreate this buffer/texture as placed at pass.pMoves[i].pDstTmpAllocation.
+        D3D12_RESOURCE_DESC resDesc = ...
+        ID3D12Resource* newRes;
+        hr = device->CreatePlacedResource(
+            pass.pMoves[i].pDstTmpAllocation->GetHeap(),
+            pass.pMoves[i].pDstTmpAllocation->GetOffset(), &resDesc,
+            D3D12_RESOURCE_STATE_COPY_DEST, NULL, IID_PPV_ARGS(&newRes));
+        // Check hr...
+
+        // Store new resource in the pDstTmpAllocation.
+        pass.pMoves[i].pDstTmpAllocation->SetResource(newRes);
+
+        // Copy its content to the new place.
+        cmdList->CopyResource(
+            pass.pMoves[i].pDstTmpAllocation->GetResource(),
+            pass.pMoves[i].pSrcAllocation->GetResource());
+    }
+        
+    // Make sure the copy commands finished executing.
+    cmdQueue->ExecuteCommandLists(...);
+    // ...
+    WaitForSingleObject(fenceEvent, INFINITE);
+
+    // Update appropriate descriptors to point to the new places...
+        
+    hr = defragCtx->EndPass(&pass);
+    if(hr == S_OK)
+        break;
+    else if(hr != S_FALSE)
+        // Handle error...
+}
+
+defragCtx->Release();
+\endcode
+
+Although functions like D3D12MA::Allocator::CreateResource()
+create an allocation and a buffer/texture at once, these are just a shortcut for
+allocating memory and creating a placed resource.
+Defragmentation works on memory allocations only. You must handle the rest manually.
+Defragmentation is an iterative process that should repreat "passes" as long as related functions
+return `S_FALSE` not `S_OK`.
+In each pass:
+
+1. D3D12MA::DefragmentationContext::BeginPass() function call:
+   - Calculates and returns the list of allocations to be moved in this pass.
+     Note this can be a time-consuming process.
+   - Reserves destination memory for them by creating temporary destination allocations
+     that you can query for their `ID3D12Heap` + offset using methods like D3D12MA::Allocation::GetHeap().
+2. Inside the pass, **you should**:
+   - Inspect the returned list of allocations to be moved.
+   - Create new buffers/textures as placed at the returned destination temporary allocations.
+   - Copy data from source to destination resources if necessary.
+   - Store the pointer to the new resource in the temporary destination allocation.
+3. D3D12MA::DefragmentationContext::EndPass() function call:
+   - Frees the source memory reserved for the allocations that are moved.
+   - Modifies source D3D12MA::Allocation objects that are moved to point to the destination reserved memory
+     and destination resource, while source resource is released.
+   - Frees `ID3D12Heap` blocks that became empty.
+
+Defragmentation algorithm tries to move all suitable allocations.
+You can, however, refuse to move some of them inside a defragmentation pass, by setting
+`pass.pMoves[i].Operation` to D3D12MA::DEFRAGMENTATION_MOVE_OPERATION_IGNORE.
+This is not recommended and may result in suboptimal packing of the allocations after defragmentation.
+If you cannot ensure any allocation can be moved, it is better to keep movable allocations separate in a custom pool.
+
+Inside a pass, for each allocation that should be moved:
+
+- You should copy its data from the source to the destination place by calling e.g. `CopyResource()`.
+  - You need to make sure these commands finished executing before the source buffers/textures are released by D3D12MA::DefragmentationContext::EndPass().
+- If a resource doesn't contain any meaningful data, e.g. it is a transient render-target texture to be cleared,
+  filled, and used temporarily in each rendering frame, you can just recreate this texture
+  without copying its data.
+- If the resource is in `D3D12_HEAP_TYPE_READBACK` memory, you can copy its data on the CPU
+  using `memcpy()`.
+- If you cannot move the allocation, you can set `pass.pMoves[i].Operation` to D3D12MA::DEFRAGMENTATION_MOVE_OPERATION_IGNORE.
+  This will cancel the move.
+  - D3D12MA::DefragmentationContext::EndPass() will then free the destination memory
+    not the source memory of the allocation, leaving it unchanged.
+- If you decide the allocation is unimportant and can be destroyed instead of moved (e.g. it wasn't used for long time),
+  you can set `pass.pMoves[i].Operation` to D3D12MA::DEFRAGMENTATION_MOVE_OPERATION_DESTROY.
+  - D3D12MA::DefragmentationContext::EndPass() will then free both source and destination memory, and will destroy the source D3D12MA::Allocation object.
+
+You can defragment a specific custom pool by calling D3D12MA::Pool::BeginDefragmentation
+or all the default pools by calling D3D12MA::Allocator::BeginDefragmentation (like in the example above).
+
+Defragmentation is always performed in each pool separately.
+Allocations are never moved between different heap types.
+The size of the destination memory reserved for a moved allocation is the same as the original one.
+Alignment of an allocation as it was determined using `GetResourceAllocationInfo()` is also respected after defragmentation.
+Buffers/textures should be recreated with the same `D3D12_RESOURCE_DESC` parameters as the original ones.
+
+You can perform the defragmentation incrementally to limit the number of allocations and bytes to be moved
+in each pass, e.g. to call it in sync with render frames and not to experience too big hitches.
+See members: D3D12MA::DEFRAGMENTATION_DESC::MaxBytesPerPass, D3D12MA::DEFRAGMENTATION_DESC::MaxAllocationsPerPass.
+
+<b>Thread safety:</b>
+It is safe to perform the defragmentation asynchronously to render frames and other Direct3D 12 and %D3D12MA
+usage, possibly from multiple threads, with the exception that allocations
+returned in D3D12MA::DEFRAGMENTATION_PASS_MOVE_INFO::pMoves shouldn't be released until the defragmentation pass is ended.
+During the call to D3D12MA::DefragmentationContext::BeginPass(), any operations on the memory pool
+affected by the defragmentation are blocked by a mutex.
+
+What it means in practice is that you shouldn't free any allocations from the defragmented pool
+since the moment a call to `BeginPass` begins. Otherwise, a thread performing the `allocation->Release()`
+would block for the time `BeginPass` executes and then free the allocation when it finishes, while the allocation
+could have ended up on the list of allocations to move.
+A solution to freeing allocations during defragmentation is to find such allocation on the list
+`pass.pMoves[i]` and set its operation to D3D12MA::DEFRAGMENTATION_MOVE_OPERATION_DESTROY instead of
+calling `allocation->Release()`, or simply deferring the release to the time after defragmentation finished.
+
+<b>Mapping</b> is out of scope of this library and so it is not preserved after an allocation is moved during defragmentation.
+You need to map the new resource yourself if needed.
+
+\note Defragmentation is not supported in custom pools created with D3D12MA::POOL_FLAG_ALGORITHM_LINEAR.
+
+
+\page statistics Statistics
+
+This library contains several functions that return information about its internal state,
+especially the amount of memory allocated from D3D12.
+
+\section statistics_numeric_statistics Numeric statistics
+
+If you need to obtain basic statistics about memory usage per memory segment group, together with current budget,
+you can call function D3D12MA::Allocator::GetBudget() and inspect structure D3D12MA::Budget.
+This is useful to keep track of memory usage and stay withing budget.
+Example:
+
+\code
+D3D12MA::Budget localBudget;
+allocator->GetBudget(&localBudget, NULL);
+
+printf("My GPU memory currently has %u allocations taking %llu B,\n",
+    localBudget.Statistics.AllocationCount,
+    localBudget.Statistics.AllocationBytes);
+printf("allocated out of %u D3D12 memory heaps taking %llu B,\n",
+    localBudget.Statistics.BlockCount,
+    localBudget.Statistics.BlockBytes);
+printf("D3D12 reports total usage %llu B with budget %llu B.\n",
+    localBudget.UsageBytes,
+    localBudget.BudgetBytes);
+\endcode
+
+You can query for more detailed statistics per heap type, memory segment group, and totals,
+including minimum and maximum allocation size and unused range size,
+by calling function D3D12MA::Allocator::CalculateStatistics() and inspecting structure D3D12MA::TotalStatistics.
+This function is slower though, as it has to traverse all the internal data structures,
+so it should be used only for debugging purposes.
+
+You can query for statistics of a custom pool using function D3D12MA::Pool::GetStatistics()
+or D3D12MA::Pool::CalculateStatistics().
+
+You can query for information about a specific allocation using functions of the D3D12MA::Allocation class,
+e.g. `GetSize()`, `GetOffset()`, `GetHeap()`.
+
+\section statistics_json_dump JSON dump
+
+You can dump internal state of the allocator to a string in JSON format using function D3D12MA::Allocator::BuildStatsString().
+The result is guaranteed to be correct JSON.
+It uses Windows Unicode (UTF-16) encoding.
+Any strings provided by user (see D3D12MA::Allocation::SetName())
+are copied as-is and properly escaped for JSON.
+It must be freed using function D3D12MA::Allocator::FreeStatsString().
+
+The format of this JSON string is not part of official documentation of the library,
+but it will not change in backward-incompatible way without increasing library major version number
+and appropriate mention in changelog.
+
+The JSON string contains all the data that can be obtained using D3D12MA::Allocator::CalculateStatistics().
+It can also contain detailed map of allocated memory blocks and their regions -
+free and occupied by allocations.
+This allows e.g. to visualize the memory or assess fragmentation.
+
+
+\page resource_aliasing Resource aliasing (overlap)
+
+New explicit graphics APIs (Vulkan and Direct3D 12), thanks to manual memory
+management, give an opportunity to alias (overlap) multiple resources in the
+same region of memory - a feature not available in the old APIs (Direct3D 11, OpenGL).
+It can be useful to save video memory, but it must be used with caution.
+
+For example, if you know the flow of your whole render frame in advance, you
+are going to use some intermediate textures or buffers only during a small range of render passes,
+and you know these ranges don't overlap in time, you can create these resources in
+the same place in memory, even if they have completely different parameters (width, height, format etc.).
+
+![Resource aliasing (overlap)](../gfx/Aliasing.png)
+
+Such scenario is possible using D3D12MA, but you need to create your resources
+using special function D3D12MA::Allocator::CreateAliasingResource.
+Before that, you need to allocate memory with parameters calculated using formula:
+
+- allocation size = max(size of each resource)
+- allocation alignment = max(alignment of each resource)
+
+Following example shows two different textures created in the same place in memory,
+allocated to fit largest of them.
+
+\code
+D3D12_RESOURCE_DESC resDesc1 = {};
+resDesc1.Dimension = D3D12_RESOURCE_DIMENSION_TEXTURE2D;
+resDesc1.Alignment = 0;
+resDesc1.Width = 1920;
+resDesc1.Height = 1080;
+resDesc1.DepthOrArraySize = 1;
+resDesc1.MipLevels = 1;
+resDesc1.Format = DXGI_FORMAT_R8G8B8A8_UNORM;
+resDesc1.SampleDesc.Count = 1;
+resDesc1.SampleDesc.Quality = 0;
+resDesc1.Layout = D3D12_TEXTURE_LAYOUT_UNKNOWN;
+resDesc1.Flags = D3D12_RESOURCE_FLAG_ALLOW_RENDER_TARGET | D3D12_RESOURCE_FLAG_ALLOW_UNORDERED_ACCESS;
+
+D3D12_RESOURCE_DESC resDesc2 = {};
+resDesc2.Dimension = D3D12_RESOURCE_DIMENSION_TEXTURE2D;
+resDesc2.Alignment = 0;
+resDesc2.Width = 1024;
+resDesc2.Height = 1024;
+resDesc2.DepthOrArraySize = 1;
+resDesc2.MipLevels = 0;
+resDesc2.Format = DXGI_FORMAT_R8G8B8A8_UNORM;
+resDesc2.SampleDesc.Count = 1;
+resDesc2.SampleDesc.Quality = 0;
+resDesc2.Layout = D3D12_TEXTURE_LAYOUT_UNKNOWN;
+resDesc2.Flags = D3D12_RESOURCE_FLAG_ALLOW_RENDER_TARGET;
+
+const D3D12_RESOURCE_ALLOCATION_INFO allocInfo1 =
+    device->GetResourceAllocationInfo(0, 1, &resDesc1);
+const D3D12_RESOURCE_ALLOCATION_INFO allocInfo2 =
+    device->GetResourceAllocationInfo(0, 1, &resDesc2);
+
+D3D12_RESOURCE_ALLOCATION_INFO finalAllocInfo = {};
+finalAllocInfo.Alignment = std::max(allocInfo1.Alignment, allocInfo2.Alignment);
+finalAllocInfo.SizeInBytes = std::max(allocInfo1.SizeInBytes, allocInfo2.SizeInBytes);
+
+D3D12MA::ALLOCATION_DESC allocDesc = {};
+allocDesc.HeapType = D3D12_HEAP_TYPE_DEFAULT;
+allocDesc.ExtraHeapFlags = D3D12_HEAP_FLAG_ALLOW_ONLY_RT_DS_TEXTURES;
+
+D3D12MA::Allocation* alloc;
+hr = allocator->AllocateMemory(&allocDesc, &finalAllocInfo, &alloc);
+assert(alloc != NULL && alloc->GetHeap() != NULL);
+
+ID3D12Resource* res1;
+hr = allocator->CreateAliasingResource(
+    alloc,
+    0, // AllocationLocalOffset
+    &resDesc1,
+    D3D12_RESOURCE_STATE_COMMON,
+    NULL, // pOptimizedClearValue
+    IID_PPV_ARGS(&res1));
+
+ID3D12Resource* res2;
+hr = allocator->CreateAliasingResource(
+    alloc,
+    0, // AllocationLocalOffset
+    &resDesc2,
+    D3D12_RESOURCE_STATE_COMMON,
+    NULL, // pOptimizedClearValue
+    IID_PPV_ARGS(&res2));
+
+// You can use res1 and res2, but not at the same time!
+
+res2->Release();
+res1->Release();
+alloc->Release();
+\endcode
+
+Remember that using resouces that alias in memory requires proper synchronization.
+You need to issue a special barrier of type `D3D12_RESOURCE_BARRIER_TYPE_ALIASING`.
+You also need to treat a resource after aliasing as uninitialized - containing garbage data.
+For example, if you use `res1` and then want to use `res2`, you need to first initialize `res2`
+using either Clear, Discard, or Copy to the entire resource.
+
+Additional considerations:
+
+- D3D12 also allows to interpret contents of memory between aliasing resources consistently in some cases,
+  which is called "data inheritance". For details, see
+  Microsoft documentation chapter "Memory Aliasing and Data Inheritance".
+- You can create more complex layout where different textures and buffers are bound
+  at different offsets inside one large allocation. For example, one can imagine
+  a big texture used in some render passes, aliasing with a set of many small buffers
+  used in some further passes. To bind a resource at non-zero offset of an allocation,
+  call D3D12MA::Allocator::CreateAliasingResource with appropriate value of `AllocationLocalOffset` parameter.
+- Resources of the three categories: buffers, textures with `RENDER_TARGET` or `DEPTH_STENCIL` flags, and all other textures,
+  can be placed in the same memory only when `allocator->GetD3D12Options().ResourceHeapTier >= D3D12_RESOURCE_HEAP_TIER_2`.
+  Otherwise they must be placed in different memory heap types, and thus aliasing them is not possible.
+
+
+\page linear_algorithm Linear allocation algorithm
+
+Each D3D12 memory block managed by this library has accompanying metadata that
+keeps track of used and unused regions. By default, the metadata structure and
+algorithm tries to find best place for new allocations among free regions to
+optimize memory usage. This way you can allocate and free objects in any order.
+
+![Default allocation algorithm](../gfx/Linear_allocator_1_algo_default.png)
+
+Sometimes there is a need to use simpler, linear allocation algorithm. You can
+create custom pool that uses such algorithm by adding flag
+D3D12MA::POOL_FLAG_ALGORITHM_LINEAR to D3D12MA::POOL_DESC::Flags while creating
+D3D12MA::Pool object. Then an alternative metadata management is used. It always
+creates new allocations after last one and doesn't reuse free regions after
+allocations freed in the middle. It results in better allocation performance and
+less memory consumed by metadata.
+
+![Linear allocation algorithm](../gfx/Linear_allocator_2_algo_linear.png)
+
+With this one flag, you can create a custom pool that can be used in many ways:
+free-at-once, stack, double stack, and ring buffer. See below for details.
+You don't need to specify explicitly which of these options you are going to use - it is detected automatically.
+
+\section linear_algorithm_free_at_once Free-at-once
+
+In a pool that uses linear algorithm, you still need to free all the allocations
+individually by calling `allocation->Release()`. You can free
+them in any order. New allocations are always made after last one - free space
+in the middle is not reused. However, when you release all the allocation and
+the pool becomes empty, allocation starts from the beginning again. This way you
+can use linear algorithm to speed up creation of allocations that you are going
+to release all at once.
+
+![Free-at-once](../gfx/Linear_allocator_3_free_at_once.png)
+
+This mode is also available for pools created with D3D12MA::POOL_DESC::MaxBlockCount
+value that allows multiple memory blocks.
+
+\section linear_algorithm_stack Stack
+
+When you free an allocation that was created last, its space can be reused.
+Thanks to this, if you always release allocations in the order opposite to their
+creation (LIFO - Last In First Out), you can achieve behavior of a stack.
+
+![Stack](../gfx/Linear_allocator_4_stack.png)
+
+This mode is also available for pools created with D3D12MA::POOL_DESC::MaxBlockCount
+value that allows multiple memory blocks.
+
+\section linear_algorithm_double_stack Double stack
+
+The space reserved by a custom pool with linear algorithm may be used by two
+stacks:
+
+- First, default one, growing up from offset 0.
+- Second, "upper" one, growing down from the end towards lower offsets.
+
+To make allocation from the upper stack, add flag D3D12MA::ALLOCATION_FLAG_UPPER_ADDRESS
+to D3D12MA::ALLOCATION_DESC::Flags.
+
+![Double stack](../gfx/Linear_allocator_7_double_stack.png)
+
+Double stack is available only in pools with one memory block -
+D3D12MA::POOL_DESC::MaxBlockCount must be 1. Otherwise behavior is undefined.
+
+When the two stacks' ends meet so there is not enough space between them for a
+new allocation, such allocation fails with usual `E_OUTOFMEMORY` error.
+
+\section linear_algorithm_ring_buffer Ring buffer
+
+When you free some allocations from the beginning and there is not enough free space
+for a new one at the end of a pool, allocator's "cursor" wraps around to the
+beginning and starts allocation there. Thanks to this, if you always release
+allocations in the same order as you created them (FIFO - First In First Out),
+you can achieve behavior of a ring buffer / queue.
+
+![Ring buffer](../gfx/Linear_allocator_5_ring_buffer.png)
+
+Ring buffer is available only in pools with one memory block -
+D3D12MA::POOL_DESC::MaxBlockCount must be 1. Otherwise behavior is undefined.
+
+\section linear_algorithm_additional_considerations Additional considerations
+
+Linear algorithm can also be used with \ref virtual_allocator.
+See flag D3D12MA::VIRTUAL_BLOCK_FLAG_ALGORITHM_LINEAR.
+
+
+\page virtual_allocator Virtual allocator
+
+As an extra feature, the core allocation algorithm of the library is exposed through a simple and convenient API of "virtual allocator".
+It doesn't allocate any real GPU memory. It just keeps track of used and free regions of a "virtual block".
+You can use it to allocate your own memory or other objects, even completely unrelated to D3D12.
+A common use case is sub-allocation of pieces of one large GPU buffer.
+
+\section virtual_allocator_creating_virtual_block Creating virtual block
+
+To use this functionality, there is no main "allocator" object.
+You don't need to have D3D12MA::Allocator object created.
+All you need to do is to create a separate D3D12MA::VirtualBlock object for each block of memory you want to be managed by the allocator:
+
+-# Fill in D3D12MA::ALLOCATOR_DESC structure.
+-# Call D3D12MA::CreateVirtualBlock. Get new D3D12MA::VirtualBlock object.
+
+Example:
+
+\code
+D3D12MA::VIRTUAL_BLOCK_DESC blockDesc = {};
+blockDesc.Size = 1048576; // 1 MB
+
+D3D12MA::VirtualBlock *block;
+HRESULT hr = CreateVirtualBlock(&blockDesc, &block);
+\endcode
+
+\section virtual_allocator_making_virtual_allocations Making virtual allocations
+
+D3D12MA::VirtualBlock object contains internal data structure that keeps track of free and occupied regions
+using the same code as the main D3D12 memory allocator.
+A single allocation is identified by a lightweight structure D3D12MA::VirtualAllocation.
+You will also likely want to know the offset at which the allocation was made in the block.
+
+In order to make an allocation:
+
+-# Fill in D3D12MA::VIRTUAL_ALLOCATION_DESC structure.
+-# Call D3D12MA::VirtualBlock::Allocate. Get new D3D12MA::VirtualAllocation value that identifies the allocation.
+
+Example:
+
+\code
+D3D12MA::VIRTUAL_ALLOCATION_DESC allocDesc = {};
+allocDesc.Size = 4096; // 4 KB
+
+D3D12MA::VirtualAllocation alloc;
+UINT64 allocOffset;
+hr = block->Allocate(&allocDesc, &alloc, &allocOffset);
+if(SUCCEEDED(hr))
+{
+    // Use the 4 KB of your memory starting at allocOffset.
+}
+else
+{
+    // Allocation failed - no space for it could be found. Handle this error!
+}
+\endcode
+
+\section virtual_allocator_deallocation Deallocation
+
+When no longer needed, an allocation can be freed by calling D3D12MA::VirtualBlock::FreeAllocation.
+
+When whole block is no longer needed, the block object can be released by calling `block->Release()`.
+All allocations must be freed before the block is destroyed, which is checked internally by an assert.
+However, if you don't want to call `block->FreeAllocation` for each allocation, you can use D3D12MA::VirtualBlock::Clear to free them all at once -
+a feature not available in normal D3D12 memory allocator.
+
+Example:
+
+\code
+block->FreeAllocation(alloc);
+block->Release();
+\endcode
+
+\section virtual_allocator_allocation_parameters Allocation parameters
+
+You can attach a custom pointer to each allocation by using D3D12MA::VirtualBlock::SetAllocationPrivateData.
+Its default value is `NULL`.
+It can be used to store any data that needs to be associated with that allocation - e.g. an index, a handle, or a pointer to some
+larger data structure containing more information. Example:
+
+\code
+struct CustomAllocData
+{
+    std::string m_AllocName;
+};
+CustomAllocData* allocData = new CustomAllocData();
+allocData->m_AllocName = "My allocation 1";
+block->SetAllocationPrivateData(alloc, allocData);
+\endcode
+
+The pointer can later be fetched, along with allocation offset and size, by passing the allocation handle to function
+D3D12MA::VirtualBlock::GetAllocationInfo and inspecting returned structure D3D12MA::VIRTUAL_ALLOCATION_INFO.
+If you allocated a new object to be used as the custom pointer, don't forget to delete that object before freeing the allocation!
+Example:
+
+\code
+VIRTUAL_ALLOCATION_INFO allocInfo;
+block->GetAllocationInfo(alloc, &allocInfo);
+delete (CustomAllocData*)allocInfo.pPrivateData;
+
+block->FreeAllocation(alloc);
+\endcode
+
+\section virtual_allocator_alignment_and_units Alignment and units
+
+It feels natural to express sizes and offsets in bytes.
+If an offset of an allocation needs to be aligned to a multiply of some number (e.g. 4 bytes), you can fill optional member
+D3D12MA::VIRTUAL_ALLOCATION_DESC::Alignment to request it. Example:
+
+\code
+D3D12MA::VIRTUAL_ALLOCATION_DESC allocDesc = {};
+allocDesc.Size = 4096; // 4 KB
+allocDesc.Alignment = 4; // Returned offset must be a multiply of 4 B
+
+D3D12MA::VirtualAllocation alloc;
+UINT64 allocOffset;
+hr = block->Allocate(&allocDesc, &alloc, &allocOffset);
+\endcode
+
+Alignments of different allocations made from one block may vary.
+However, if all alignments and sizes are always multiply of some size e.g. 4 B or `sizeof(MyDataStruct)`,
+you can express all sizes, alignments, and offsets in multiples of that size instead of individual bytes.
+It might be more convenient, but you need to make sure to use this new unit consistently in all the places:
+
+- D3D12MA::VIRTUAL_BLOCK_DESC::Size
+- D3D12MA::VIRTUAL_ALLOCATION_DESC::Size and D3D12MA::VIRTUAL_ALLOCATION_DESC::Alignment
+- Using offset returned by D3D12MA::VirtualBlock::Allocate and D3D12MA::VIRTUAL_ALLOCATION_INFO::Offset
+
+\section virtual_allocator_statistics Statistics
+
+You can obtain brief statistics of a virtual block using D3D12MA::VirtualBlock::GetStatistics().
+The function fills structure D3D12MA::Statistics - same as used by the normal D3D12 memory allocator.
+Example:
+
+\code
+D3D12MA::Statistics stats;
+block->GetStatistics(&stats);
+printf("My virtual block has %llu bytes used by %u virtual allocations\n",
+    stats.AllocationBytes, stats.AllocationCount);
+\endcode
+
+More detailed statistics can be obtained using function D3D12MA::VirtualBlock::CalculateStatistics(),
+but they are slower to calculate.
+
+You can also request a full list of allocations and free regions as a string in JSON format by calling
+D3D12MA::VirtualBlock::BuildStatsString.
+Returned string must be later freed using D3D12MA::VirtualBlock::FreeStatsString.
+The format of this string may differ from the one returned by the main D3D12 allocator, but it is similar.
+
+\section virtual_allocator_additional_considerations Additional considerations
+
+Alternative, linear algorithm can be used with virtual allocator - see flag
+D3D12MA::VIRTUAL_BLOCK_FLAG_ALGORITHM_LINEAR and documentation: \ref linear_algorithm.
+
+Note that the "virtual allocator" functionality is implemented on a level of individual memory blocks.
+Keeping track of a whole collection of blocks, allocating new ones when out of free space,
+deleting empty ones, and deciding which one to try first for a new allocation must be implemented by the user.
+
+
+\page configuration Configuration
+
+Please check file `D3D12MemAlloc.cpp` lines between "Configuration Begin" and
+"Configuration End" to find macros that you can define to change the behavior of
+the library, primarily for debugging purposes.
+
+\section custom_memory_allocator Custom CPU memory allocator
+
+If you use custom allocator for CPU memory rather than default C++ operator `new`
+and `delete` or `malloc` and `free` functions, you can make this library using
+your allocator as well by filling structure D3D12MA::ALLOCATION_CALLBACKS and
+passing it as optional member D3D12MA::ALLOCATOR_DESC::pAllocationCallbacks.
+Functions pointed there will be used by the library to make any CPU-side
+allocations. Example:
+
+\code
+#include <malloc.h>
+
+void* CustomAllocate(size_t Size, size_t Alignment, void* pPrivateData)
+{
+    void* memory = _aligned_malloc(Size, Alignment);
+    // Your extra bookkeeping here...
+    return memory;
+}
+
+void CustomFree(void* pMemory, void* pPrivateData)
+{
+    // Your extra bookkeeping here...
+    _aligned_free(pMemory);
+}
+
+(...)
+
+D3D12MA::ALLOCATION_CALLBACKS allocationCallbacks = {};
+allocationCallbacks.pAllocate = &CustomAllocate;
+allocationCallbacks.pFree = &CustomFree;
+
+D3D12MA::ALLOCATOR_DESC allocatorDesc = {};
+allocatorDesc.pDevice = device;
+allocatorDesc.pAdapter = adapter;
+allocatorDesc.pAllocationCallbacks = &allocationCallbacks;
+
+D3D12MA::Allocator* allocator;
+HRESULT hr = D3D12MA::CreateAllocator(&allocatorDesc, &allocator);
+\endcode
+
+
+\section debug_margins Debug margins
+
+By default, allocations are laid out in memory blocks next to each other if possible
+(considering required alignment returned by `ID3D12Device::GetResourceAllocationInfo`).
+
+![Allocations without margin](../gfx/Margins_1.png)
+
+Define macro `D3D12MA_DEBUG_MARGIN` to some non-zero value (e.g. 16) inside "D3D12MemAlloc.cpp"
+to enforce specified number of bytes as a margin after every allocation.
+
+![Allocations with margin](../gfx/Margins_2.png)
+
+If your bug goes away after enabling margins, it means it may be caused by memory
+being overwritten outside of allocation boundaries. It is not 100% certain though.
+Change in application behavior may also be caused by different order and distribution
+of allocations across memory blocks after margins are applied.
+
+Margins work with all memory heap types.
+
+Margin is applied only to placed allocations made out of memory heaps and not to committed
+allocations, which have their own, implicit memory heap of specific size.
+It is thus not applied to allocations made using D3D12MA::ALLOCATION_FLAG_COMMITTED flag
+or those automatically decided to put into committed allocations, e.g. due to its large size.
+
+Margins appear in [JSON dump](@ref statistics_json_dump) as part of free space.
+
+Note that enabling margins increases memory usage and fragmentation.
+
+Margins do not apply to \ref virtual_allocator.
+
+
+\page general_considerations General considerations
+
+\section general_considerations_thread_safety Thread safety
+
+- The library has no global state, so separate D3D12MA::Allocator objects can be used independently.
+  In typical applications there should be no need to create multiple such objects though - one per `ID3D12Device` is enough.
+- All calls to methods of D3D12MA::Allocator class are safe to be made from multiple
+  threads simultaneously because they are synchronized internally when needed.
+- When the allocator is created with D3D12MA::ALLOCATOR_FLAG_SINGLETHREADED,
+  calls to methods of D3D12MA::Allocator class must be made from a single thread or synchronized by the user.
+  Using this flag may improve performance.
+- D3D12MA::VirtualBlock is not safe to be used from multiple threads simultaneously.
+
+\section general_considerations_versioning_and_compatibility Versioning and compatibility
+
+The library uses [**Semantic Versioning**](https://semver.org/),
+which means version numbers follow convention: Major.Minor.Patch (e.g. 2.3.0), where:
+
+- Incremented Patch version means a release is backward- and forward-compatible,
+  introducing only some internal improvements, bug fixes, optimizations etc.
+  or changes that are out of scope of the official API described in this documentation.
+- Incremented Minor version means a release is backward-compatible,
+  so existing code that uses the library should continue to work, while some new
+  symbols could have been added: new structures, functions, new values in existing
+  enums and bit flags, new structure members, but not new function parameters.
+- Incrementing Major version means a release could break some backward compatibility.
+
+All changes between official releases are documented in file "CHANGELOG.md".
+
+\warning Backward compatiblity is considered on the level of C++ source code, not binary linkage.
+Adding new members to existing structures is treated as backward compatible if initializing
+the new members to binary zero results in the old behavior.
+You should always fully initialize all library structures to zeros and not rely on their
+exact binary size.
+
+\section general_considerations_features_not_supported Features not supported
+
+Features deliberately excluded from the scope of this library:
+
+- **Descriptor allocation.** Although also called "heaps", objects that represent
+  descriptors are separate part of the D3D12 API from buffers and textures.
+  You can still use \ref virtual_allocator to manage descriptors and their ranges inside a descriptor heap.
+- **Support for reserved (tiled) resources.** We don't recommend using them.
+- Support for `ID3D12Device::Evict` and `MakeResident`. We don't recommend using them.
+  You can call them on the D3D12 objects manually.
+  Plese keep in mind, however, that eviction happens on the level of entire `ID3D12Heap` memory blocks
+  and not individual buffers or textures which may be placed inside them.
+- **Handling CPU memory allocation failures.** When dynamically creating small C++
+  objects in CPU memory (not the GPU memory), allocation failures are not
+  handled gracefully, because that would complicate code significantly and
+  is usually not needed in desktop PC applications anyway.
+  Success of an allocation is just checked with an assert.
+- **Code free of any compiler warnings.**
+  There are many preprocessor macros that make some variables unused, function parameters unreferenced,
+  or conditional expressions constant in some configurations.
+  The code of this library should not be bigger or more complicated just to silence these warnings.
+  It is recommended to disable such warnings instead.
+- This is a C++ library. **Bindings or ports to any other programming languages** are welcome as external projects but
+  are not going to be included into this repository.
+*/
diff --git a/src/3rdparty/D3D12MemoryAllocator/LICENSE.txt b/src/3rdparty/D3D12MemoryAllocator/LICENSE.txt
new file mode 100644
index 00000000..bc2ab4dc
--- /dev/null
+++ b/src/3rdparty/D3D12MemoryAllocator/LICENSE.txt
@@ -0,0 +1,19 @@
+Copyright (c) 2019-2022 Advanced Micro Devices, Inc. All rights reserved.
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.
diff --git a/src/3rdparty/D3D12MemoryAllocator/patches/0001-Eliminate-warnings-in-D3D12MA.patch b/src/3rdparty/D3D12MemoryAllocator/patches/0001-Eliminate-warnings-in-D3D12MA.patch
new file mode 100644
index 00000000..5004c09d
--- /dev/null
+++ b/src/3rdparty/D3D12MemoryAllocator/patches/0001-Eliminate-warnings-in-D3D12MA.patch
@@ -0,0 +1,91 @@
+From d83bc556c26b13e1a243c71628f75ef624de05bf Mon Sep 17 00:00:00 2001
+From: Laszlo Agocs <laszlo.agocs@qt.io>
+Date: Sat, 21 Jan 2023 20:07:00 +0100
+Subject: [PATCH] Eliminate warnings in D3D12MA
+
+Change-Id: If703c50cc1239248b94967edb4047868aaf07f1a
+---
+ .../D3D12MemoryAllocator/D3D12MemAlloc.cpp    | 23 ++++++++++++++++++-
+ .../D3D12MemoryAllocator/D3D12MemAlloc.h      |  6 ++---
+ 2 files changed, 25 insertions(+), 4 deletions(-)
+
+diff --git a/src/3rdparty/D3D12MemoryAllocator/D3D12MemAlloc.cpp b/src/3rdparty/D3D12MemoryAllocator/D3D12MemAlloc.cpp
+index fe1856927f..f041ec13d8 100644
+--- a/src/3rdparty/D3D12MemoryAllocator/D3D12MemAlloc.cpp
++++ b/src/3rdparty/D3D12MemoryAllocator/D3D12MemAlloc.cpp
+@@ -132,6 +132,18 @@ especially to test compatibility with D3D12_RESOURCE_HEAP_TIER_1 on modern GPUs.
+     #define D3D12MA_CREATE_NOT_ZEROED_AVAILABLE 1
+ #endif
+ 
++#if defined(__clang__) || defined(__GNUC__)
++#pragma GCC diagnostic push
++#pragma GCC diagnostic ignored "-Wunused-parameter"
++#pragma GCC diagnostic ignored "-Wunused-variable"
++#pragma GCC diagnostic ignored "-Wsign-compare"
++#pragma GCC diagnostic ignored "-Wmissing-field-initializers"
++#pragma GCC diagnostic ignored "-Wswitch"
++#pragma GCC diagnostic ignored "-Wimplicit-fallthrough"
++#pragma GCC diagnostic ignored "-Wunused-function"
++#pragma GCC diagnostic ignored "-Wnonnull-compare"
++#endif
++
+ namespace D3D12MA
+ {
+ static constexpr UINT HEAP_TYPE_COUNT = 4;
+@@ -7581,12 +7593,14 @@ void AllocatorPimpl::BuildStatsString(WCHAR** ppStatsString, BOOL detailedMap)
+                         json.WriteString(L"HEAP_FLAG_ALLOW_DISPLAY");
+                     if (flags & D3D12_HEAP_FLAG_SHARED_CROSS_ADAPTER)
+                         json.WriteString(L"HEAP_FLAG_CROSS_ADAPTER");
++#ifdef __ID3D12Device8_INTERFACE_DEFINED__
+                     if (flags & D3D12_HEAP_FLAG_HARDWARE_PROTECTED)
+                         json.WriteString(L"HEAP_FLAG_HARDWARE_PROTECTED");
+                     if (flags & D3D12_HEAP_FLAG_ALLOW_WRITE_WATCH)
+                         json.WriteString(L"HEAP_FLAG_ALLOW_WRITE_WATCH");
+                     if (flags & D3D12_HEAP_FLAG_ALLOW_SHADER_ATOMICS)
+                         json.WriteString(L"HEAP_FLAG_ALLOW_SHADER_ATOMICS");
++#endif
+ #ifdef __ID3D12Device8_INTERFACE_DEFINED__
+                     if (flags & D3D12_HEAP_FLAG_CREATE_NOT_RESIDENT)
+                         json.WriteString(L"HEAP_FLAG_CREATE_NOT_RESIDENT");
+@@ -7607,9 +7621,12 @@ void AllocatorPimpl::BuildStatsString(WCHAR** ppStatsString, BOOL detailedMap)
+                         | D3D12_HEAP_FLAG_SHARED_CROSS_ADAPTER
+                         | D3D12_HEAP_FLAG_DENY_RT_DS_TEXTURES
+                         | D3D12_HEAP_FLAG_DENY_NON_RT_DS_TEXTURES
++#ifdef __ID3D12Device8_INTERFACE_DEFINED__
+                         | D3D12_HEAP_FLAG_HARDWARE_PROTECTED
+                         | D3D12_HEAP_FLAG_ALLOW_WRITE_WATCH
+-                        | D3D12_HEAP_FLAG_ALLOW_SHADER_ATOMICS);
++                        | D3D12_HEAP_FLAG_ALLOW_SHADER_ATOMICS
++#endif
++                    );
+ #ifdef __ID3D12Device8_INTERFACE_DEFINED__
+                     flags &= ~(D3D12_HEAP_FLAG_CREATE_NOT_RESIDENT
+                         | D3D12_HEAP_FLAG_CREATE_NOT_ZEROED);
+@@ -10539,3 +10556,7 @@ VirtualBlock::~VirtualBlock()
+ #endif // _D3D12MA_VIRTUAL_BLOCK_FUNCTIONS
+ #endif // _D3D12MA_PUBLIC_INTERFACE
+ } // namespace D3D12MA
++
++#if defined(__clang__) || defined(__GNUC__)
++#pragma GCC diagnostic pop
++#endif
+diff --git a/src/3rdparty/D3D12MemoryAllocator/D3D12MemAlloc.h b/src/3rdparty/D3D12MemoryAllocator/D3D12MemAlloc.h
+index 4ab7be318e..d80dcb1e89 100644
+--- a/src/3rdparty/D3D12MemoryAllocator/D3D12MemAlloc.h
++++ b/src/3rdparty/D3D12MemoryAllocator/D3D12MemAlloc.h
+@@ -151,9 +151,9 @@ class D3D12MA_API IUnknownImpl : public IUnknown
+ {
+ public:
+     virtual ~IUnknownImpl() = default;
+-    virtual HRESULT STDMETHODCALLTYPE QueryInterface(REFIID riid, void** ppvObject);
+-    virtual ULONG STDMETHODCALLTYPE AddRef();
+-    virtual ULONG STDMETHODCALLTYPE Release();
++    HRESULT STDMETHODCALLTYPE QueryInterface(REFIID riid, void** ppvObject) override;
++    ULONG STDMETHODCALLTYPE AddRef() override;
++    ULONG STDMETHODCALLTYPE Release() override;
+ protected:
+     virtual void ReleaseThis() { delete this; }
+ private:
+-- 
+2.33.0.windows.2
+
diff --git a/src/3rdparty/D3D12MemoryAllocator/qt_attribution.json b/src/3rdparty/D3D12MemoryAllocator/qt_attribution.json
new file mode 100644
index 00000000..3bb1be82
--- /dev/null
+++ b/src/3rdparty/D3D12MemoryAllocator/qt_attribution.json
@@ -0,0 +1,16 @@
+[
+    {
+        "Id": "D3D12MemoryAllocator",
+        "Name": "D3D12 Memory Allocator",
+        "QDocModule": "qtgui",
+        "Description": "D3D12 Memory Allocator",
+        "QtUsage": "Memory management for the D3D12 backend of QRhi.",
+
+        "Homepage": "https://github.com/GPUOpen-LibrariesAndSDKs/D3D12MemoryAllocator",
+        "Version": "f128d39b7a95b4235bd228d231646278dc6c24b2",
+        "License": "MIT License",
+        "LicenseId": "MIT",
+        "LicenseFile": "LICENSE.txt",
+        "Copyright": "Copyright (c) 2019-2022 Advanced Micro Devices, Inc. All rights reserved."
+    }
+]
diff --git a/src/3rdparty/gradle/gradle.properties b/src/3rdparty/gradle/gradle.properties
index 263d7023..4fe1674a 100644
--- a/src/3rdparty/gradle/gradle.properties
+++ b/src/3rdparty/gradle/gradle.properties
@@ -3,7 +3,7 @@
 # http://www.gradle.org/docs/current/userguide/build_environment.html
 # Specifies the JVM arguments used for the daemon process.
 # The setting is particularly useful for tweaking memory settings.
-org.gradle.jvmargs=-Xmx2500m -XX:MaxMetaspaceSize=512m -XX:+HeapDumpOnOutOfMemoryError -Dfile.encoding=UTF-8
+org.gradle.jvmargs=-Xmx2500m -XX:MaxMetaspaceSize=768m -XX:+HeapDumpOnOutOfMemoryError -Dfile.encoding=UTF-8
 
 # Enable building projects in parallel
 org.gradle.parallel=true
@@ -12,3 +12,7 @@ org.gradle.parallel=true
 # build with the same inputs. However, over time, the cache size will
 # grow. Uncomment the following line to enable it.
 #org.gradle.caching=true
+#org.gradle.configuration-cache=true
+
+# Allow AndroidX usage
+android.useAndroidX=true
diff --git a/src/3rdparty/gradle/gradle/wrapper/gradle-wrapper.jar b/src/3rdparty/gradle/gradle/wrapper/gradle-wrapper.jar
index 41d9927a..7f93135c 100644
Binary files a/src/3rdparty/gradle/gradle/wrapper/gradle-wrapper.jar and b/src/3rdparty/gradle/gradle/wrapper/gradle-wrapper.jar differ
diff --git a/src/3rdparty/gradle/gradle/wrapper/gradle-wrapper.properties b/src/3rdparty/gradle/gradle/wrapper/gradle-wrapper.properties
index da1db5f0..ac72c34e 100644
--- a/src/3rdparty/gradle/gradle/wrapper/gradle-wrapper.properties
+++ b/src/3rdparty/gradle/gradle/wrapper/gradle-wrapper.properties
@@ -1,5 +1,7 @@
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-8.0-bin.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-8.3-bin.zip
+networkTimeout=10000
+validateDistributionUrl=true
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
diff --git a/src/3rdparty/gradle/gradlew b/src/3rdparty/gradle/gradlew
index 005bcde0..c22a5176 100644
--- a/src/3rdparty/gradle/gradlew
+++ b/src/3rdparty/gradle/gradlew
@@ -55,7 +55,7 @@
 #       Darwin, MinGW, and NonStop.
 #
 #   (3) This script is generated from the Groovy template
-#       https://github.com/gradle/gradle/blob/master/subprojects/plugins/src/main/resources/org/gradle/api/internal/plugins/unixStartScript.txt
+#       https://github.com/gradle/gradle/blob/HEAD/subprojects/plugins/src/main/resources/org/gradle/api/internal/plugins/unixStartScript.txt
 #       within the Gradle project.
 #
 #       You can find Gradle at https://github.com/gradle/gradle/.
@@ -80,13 +80,11 @@ do
     esac
 done
 
-APP_HOME=$( cd "${APP_HOME:-./}" && pwd -P ) || exit
-
-APP_NAME="Gradle"
+# This is normally unused
+# shellcheck disable=SC2034
 APP_BASE_NAME=${0##*/}
-
-# Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
-DEFAULT_JVM_OPTS='-Dfile.encoding=UTF-8 "-Xmx64m" "-Xms64m"'
+# Discard cd standard output in case $CDPATH is set (https://github.com/gradle/gradle/issues/25036)
+APP_HOME=$( cd "${APP_HOME:-./}" > /dev/null && pwd -P ) || exit
 
 # Use the maximum available, or set MAX_FD != -1 to use that value.
 MAX_FD=maximum
@@ -133,22 +131,29 @@ location of your Java installation."
     fi
 else
     JAVACMD=java
-    which java >/dev/null 2>&1 || die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+    if ! command -v java >/dev/null 2>&1
+    then
+        die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
 
 Please set the JAVA_HOME variable in your environment to match the
 location of your Java installation."
+    fi
 fi
 
 # Increase the maximum file descriptors if we can.
 if ! "$cygwin" && ! "$darwin" && ! "$nonstop" ; then
     case $MAX_FD in #(
       max*)
+        # In POSIX sh, ulimit -H is undefined. That's why the result is checked to see if it worked.
+        # shellcheck disable=SC3045
         MAX_FD=$( ulimit -H -n ) ||
             warn "Could not query maximum file descriptor limit"
     esac
     case $MAX_FD in  #(
       '' | soft) :;; #(
       *)
+        # In POSIX sh, ulimit -n is undefined. That's why the result is checked to see if it worked.
+        # shellcheck disable=SC3045
         ulimit -n "$MAX_FD" ||
             warn "Could not set maximum file descriptor limit to $MAX_FD"
     esac
@@ -193,6 +198,10 @@ if "$cygwin" || "$msys" ; then
     done
 fi
 
+
+# Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+DEFAULT_JVM_OPTS='-Dfile.encoding=UTF-8 "-Xmx64m" "-Xms64m"'
+
 # Collect all arguments for the java command;
 #   * $DEFAULT_JVM_OPTS, $JAVA_OPTS, and $GRADLE_OPTS can contain fragments of
 #     shell script including quotes and variable substitutions, so put them in
@@ -205,6 +214,12 @@ set -- \
         org.gradle.wrapper.GradleWrapperMain \
         "$@"
 
+# Stop when "xargs" is not available.
+if ! command -v xargs >/dev/null 2>&1
+then
+    die "xargs is not available"
+fi
+
 # Use "xargs" to parse quoted args.
 #
 # With -n1 it outputs one arg per line, with the quotes and backslashes removed.
diff --git a/src/3rdparty/gradle/gradlew.bat b/src/3rdparty/gradle/gradlew.bat
index 6a68175e..ea603b41 100644
--- a/src/3rdparty/gradle/gradlew.bat
+++ b/src/3rdparty/gradle/gradlew.bat
@@ -14,7 +14,7 @@
 @rem limitations under the License.
 @rem
 
-@if "%DEBUG%" == "" @echo off
+@if "%DEBUG%"=="" @echo off
 @rem ##########################################################################
 @rem
 @rem  Gradle startup script for Windows
@@ -25,7 +25,8 @@
 if "%OS%"=="Windows_NT" setlocal
 
 set DIRNAME=%~dp0
-if "%DIRNAME%" == "" set DIRNAME=.
+if "%DIRNAME%"=="" set DIRNAME=.
+@rem This is normally unused
 set APP_BASE_NAME=%~n0
 set APP_HOME=%DIRNAME%
 
@@ -40,7 +41,7 @@ if defined JAVA_HOME goto findJavaFromJavaHome
 
 set JAVA_EXE=java.exe
 %JAVA_EXE% -version >NUL 2>&1
-if "%ERRORLEVEL%" == "0" goto execute
+if %ERRORLEVEL% equ 0 goto execute
 
 echo.
 echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
@@ -75,13 +76,15 @@ set CLASSPATH=%APP_HOME%\gradle\wrapper\gradle-wrapper.jar
 
 :end
 @rem End local scope for the variables with windows NT shell
-if "%ERRORLEVEL%"=="0" goto mainEnd
+if %ERRORLEVEL% equ 0 goto mainEnd
 
 :fail
 rem Set variable GRADLE_EXIT_CONSOLE if you need the _script_ return code instead of
 rem the _cmd.exe /c_ return code!
-if  not "" == "%GRADLE_EXIT_CONSOLE%" exit 1
-exit /b 1
+set EXIT_CODE=%ERRORLEVEL%
+if %EXIT_CODE% equ 0 set EXIT_CODE=1
+if not ""=="%GRADLE_EXIT_CONSOLE%" exit %EXIT_CODE%
+exit /b %EXIT_CODE%
 
 :mainEnd
 if "%OS%"=="Windows_NT" endlocal
diff --git a/src/3rdparty/gradle/qt_attribution.json b/src/3rdparty/gradle/qt_attribution.json
index 5f5d434b..8e759c88 100644
--- a/src/3rdparty/gradle/qt_attribution.json
+++ b/src/3rdparty/gradle/qt_attribution.json
@@ -4,8 +4,8 @@
     "QDocModule": "qtcore",
     "QtParts": ["tools"],
     "Homepage": "https://gradle.org",
-    "Version": "8.0",
-    "DownloadLocation": "https://github.com/gradle/gradle/releases/tag/v8.0",
+    "Version": "8.3",
+    "DownloadLocation": "https://github.com/gradle/gradle/releases/tag/v8.3.0",
     "QtUsage": "Needed to create Android packages",
     "License": "Apache License 2.0",
     "LicenseId": "Apache-2.0",
diff --git a/src/android/jar/CMakeLists.txt b/src/android/jar/CMakeLists.txt
index 81eafc87..3e05d7a3 100644
--- a/src/android/jar/CMakeLists.txt
+++ b/src/android/jar/CMakeLists.txt
@@ -30,6 +30,7 @@ qt_internal_add_jar(Qt${QtBase_VERSION_MAJOR}Android
 )
 
 qt_path_join(destination ${INSTALL_DATADIR} "jar")
+
 install_jar(Qt${QtBase_VERSION_MAJOR}Android
     DESTINATION ${destination}
     COMPONENT Devel
diff --git a/src/android/jar/src/org/qtproject/qt/android/QtMessageDialogHelper.java b/src/android/jar/src/org/qtproject/qt/android/QtMessageDialogHelper.java
index 58bcbf06..26696577 100644
--- a/src/android/jar/src/org/qtproject/qt/android/QtMessageDialogHelper.java
+++ b/src/android/jar/src/org/qtproject/qt/android/QtMessageDialogHelper.java
@@ -59,15 +59,15 @@ public class QtMessageDialogHelper
     }
 
 
-    public void setIcon(int icon)
+    public void setStandardIcon(int icon)
     {
-        m_icon = icon;
+        m_standardIcon = icon;
 
     }
 
     private Drawable getIconDrawable()
     {
-        if (m_icon == 0)
+        if (m_standardIcon == 0)
             return null;
 
         try {
@@ -80,7 +80,7 @@ public class QtMessageDialogHelper
         }
 
         // Information, Warning, Critical, Question
-        switch (m_icon)
+        switch (m_standardIcon)
         {
             case 1: // Information
                 try {
@@ -336,7 +336,7 @@ public class QtMessageDialogHelper
 
     public void reset()
     {
-        m_icon = 0;
+        m_standardIcon = 0;
         m_title = null;
         m_text = null;
         m_informativeText = null;
@@ -347,7 +347,7 @@ public class QtMessageDialogHelper
     }
 
     private Activity m_activity;
-    private int m_icon = 0;
+    private int m_standardIcon = 0;
     private Spanned m_title, m_text, m_informativeText, m_detailedText;
     private ArrayList<ButtonStruct> m_buttonsList;
     private AlertDialog m_dialog;
diff --git a/src/android/templates/AndroidManifest.xml b/src/android/templates/AndroidManifest.xml
index d7438317..8f918637 100644
--- a/src/android/templates/AndroidManifest.xml
+++ b/src/android/templates/AndroidManifest.xml
@@ -43,5 +43,15 @@
                 android:name="android.app.extract_android_style"
                 android:value="minimal" />
         </activity>
+
+        <provider
+            android:name="androidx.core.content.FileProvider"
+            android:authorities="${applicationId}.qtprovider"
+            android:exported="false"
+            android:grantUriPermissions="true">
+            <meta-data
+                android:name="android.support.FILE_PROVIDER_PATHS"
+                android:resource="@xml/qtprovider_paths"/>
+        </provider>
     </application>
 </manifest>
diff --git a/src/android/templates/CMakeLists.txt b/src/android/templates/CMakeLists.txt
index 0d710f72..94f3243c 100644
--- a/src/android/templates/CMakeLists.txt
+++ b/src/android/templates/CMakeLists.txt
@@ -14,6 +14,7 @@ add_custom_target(Qt${QtBase_VERSION_MAJOR}AndroidTemplates
     SOURCES
         ${template_files}
         "${CMAKE_CURRENT_SOURCE_DIR}/res/values/libs.xml"
+        "${CMAKE_CURRENT_SOURCE_DIR}/res/xml/qtprovider_paths.xml"
 )
 
 qt_path_join(destination ${QT_INSTALL_DIR} ${INSTALL_DATADIR} "src/android/templates")
diff --git a/src/android/templates/build.gradle b/src/android/templates/build.gradle
index 6671957f..f94ffbde 100644
--- a/src/android/templates/build.gradle
+++ b/src/android/templates/build.gradle
@@ -18,6 +18,7 @@ apply plugin: 'com.android.application'
 
 dependencies {
     implementation fileTree(dir: 'libs', include: ['*.jar', '*.aar'])
+    implementation 'androidx.core:core:1.10.1'
 }
 
 android {
diff --git a/src/android/templates/res/xml/qtprovider_paths.xml b/src/android/templates/res/xml/qtprovider_paths.xml
new file mode 100644
index 00000000..ae5b4b60
--- /dev/null
+++ b/src/android/templates/res/xml/qtprovider_paths.xml
@@ -0,0 +1,4 @@
+<?xml version="1.0" encoding="utf-8"?>
+<paths xmlns:android="http://schemas.android.com/apk/res/android">
+    <files-path name="files_path" path="/"/>
+</paths>
diff --git a/src/assets/icons/CMakeLists.txt b/src/assets/icons/CMakeLists.txt
index e9f611b6..83506bd0 100644
--- a/src/assets/icons/CMakeLists.txt
+++ b/src/assets/icons/CMakeLists.txt
@@ -8,6 +8,7 @@ qt_internal_add_module(ExampleIconsPrivate
 )
 
 set(icons_resource_files
+    index.theme
     16x16/document-new.png
     16x16/document-open.png
     16x16/document-print.png
@@ -165,7 +166,7 @@ set(icons_resource_files
 
 qt_internal_add_resource(ExampleIconsPrivate "example_icons"
     PREFIX
-        "/qt-project.org/examples/icons/"
+        "/qt-project.org/icons/example_icons"
     FILES
         ${icons_resource_files}
 )
diff --git a/src/assets/icons/README b/src/assets/icons/README
index 46c1522e..26d94e9f 100644
--- a/src/assets/icons/README
+++ b/src/assets/icons/README
@@ -17,7 +17,13 @@ Setting up a project for using Example icon library
     )
     ...
 
-2. Create image resource in your application code:
+2. Load the theme
     ...
-    bool success = img->load(":/qt-project.org/examples/icons/32x32/document-new.png");
+    QIcon::setThemeSearchPaths(QIcon::themeSearchPaths() << u":/qt-project.org/icons"_s);
+    QIcon::setFallbackThemeName(u"example_icons"_s);
+    ...
+
+3. Use the icons
+    ...
+    const QIcon openIcon = QIcon::fromTheme("document-open");
     ...
diff --git a/src/assets/icons/index.theme b/src/assets/icons/index.theme
new file mode 100644
index 00000000..e389719e
--- /dev/null
+++ b/src/assets/icons/index.theme
@@ -0,0 +1,46 @@
+[Icon Theme]
+Name=example_icons
+
+Directories=16x16,16x16@2,32x32,32x32@2,128x128,128x128@2,256x256,256x256@2,scalable
+
+[16x16]
+Size=16
+Type=Fixed
+
+[16x16@2]
+Size=16
+Scale=2
+Type=Fixed
+
+[32x32]
+Size=32
+Type=Fixed
+
+[32x32@2]
+Size=32
+Scale=2
+Type=Fixed
+
+[128x128]
+Size=128
+Type=Fixed
+
+[128x128@2]
+Size=128
+Scale=2
+Type=Fixed
+
+[256x256]
+Size=256
+Type=Fixed
+
+[256x256@2]
+Size=256
+Scale=2
+Type=Fixed
+
+[scalable]
+Size=512
+Type=Scalable
+MinSize=16
+MaxSize=512
diff --git a/src/corelib/CMakeLists.txt b/src/corelib/CMakeLists.txt
index be7681bf..d42b51d5 100644
--- a/src/corelib/CMakeLists.txt
+++ b/src/corelib/CMakeLists.txt
@@ -81,9 +81,11 @@ qt_internal_add_module(Core
         global/qsysinfo.cpp global/qsysinfo.h
         global/qsystemdetection.h
         global/qtclasshelpermacros.h
+        global/qtconfiginclude.h
         global/qtconfigmacros.h
         global/qtdeprecationmarkers.h
         global/qtenvironmentvariables.cpp global/qtenvironmentvariables.h
+        global/qtenvironmentvariables_p.h
         global/qtnoop.h
         global/qtpreprocessorsupport.h
         global/qtrace_p.h
@@ -97,13 +99,19 @@ qt_internal_add_module(Core
         ${core_version_tagging_files}
         global/qvolatile_p.h
         global/q20algorithm.h
+        global/q20chrono.h
         global/q20functional.h
         global/q20iterator.h
         global/q20memory.h
         global/q20type_traits.h
         global/q23functional.h
+        global/q23utility.cpp # remove once we have a user that tests this
+        global/q23utility.h
         global/qxpfunctional.h
         global/qxptype_traits.h
+        ipc/qsharedmemory.cpp ipc/qsharedmemory.h ipc/qsharedmemory_p.h
+        ipc/qsystemsemaphore.cpp ipc/qsystemsemaphore.h ipc/qsystemsemaphore_p.h
+        ipc/qtipccommon.cpp ipc/qtipccommon.h ipc/qtipccommon_p.h
         io/qabstractfileengine.cpp io/qabstractfileengine_p.h
         io/qbuffer.cpp io/qbuffer.h
         io/qdataurl.cpp io/qdataurl_p.h
@@ -138,6 +146,7 @@ qt_internal_add_module(Core
         io/qurlidna.cpp
         io/qurlquery.cpp io/qurlquery.h
         io/qurlrecode.cpp
+        io/qzipreader_p.h io/qzipwriter_p.h io/qzip.cpp
         kernel/qabstracteventdispatcher.cpp kernel/qabstracteventdispatcher.h kernel/qabstracteventdispatcher_p.h
         kernel/qabstractnativeeventfilter.cpp kernel/qabstractnativeeventfilter.h
         kernel/qapplicationstatic.h
@@ -148,7 +157,7 @@ qt_internal_add_module(Core
         kernel/qcoreapplication_platform.h
         kernel/qcorecmdlineargs_p.h
         kernel/qcoreevent.cpp kernel/qcoreevent.h
-        kernel/qdeadlinetimer.cpp kernel/qdeadlinetimer.h kernel/qdeadlinetimer_p.h
+        kernel/qdeadlinetimer.cpp kernel/qdeadlinetimer.h
         kernel/qelapsedtimer.cpp kernel/qelapsedtimer.h
         kernel/qeventloop.cpp kernel/qeventloop.h kernel/qeventloop_p.h
         kernel/qfunctions_p.h
@@ -170,15 +179,13 @@ qt_internal_add_module(Core
         kernel/qproperty.cpp kernel/qproperty.h kernel/qproperty_p.h
         kernel/qpropertyprivate.h
         kernel/qsequentialiterable.cpp kernel/qsequentialiterable.h
-        kernel/qsharedmemory.cpp kernel/qsharedmemory.h kernel/qsharedmemory_p.h
         kernel/qsignalmapper.cpp kernel/qsignalmapper.h
         kernel/qsocketnotifier.cpp kernel/qsocketnotifier.h
         kernel/qsystemerror.cpp kernel/qsystemerror_p.h
-        kernel/qsystemsemaphore.cpp kernel/qsystemsemaphore.h kernel/qsystemsemaphore_p.h
         kernel/qtestsupport_core.cpp kernel/qtestsupport_core.h
         kernel/qtimer.cpp kernel/qtimer.h kernel/qtimer_p.h
         kernel/qtranslator.cpp kernel/qtranslator.h kernel/qtranslator_p.h
-        kernel/qvariant.cpp kernel/qvariant.h
+        kernel/qvariant.cpp kernel/qvariant.h kernel/qvariant_p.h
         kernel/qvariantmap.h kernel/qvarianthash.h kernel/qvariantlist.h
         plugin/qfactoryinterface.cpp plugin/qfactoryinterface.h
         plugin/qfactoryloader.cpp plugin/qfactoryloader_p.h
@@ -201,9 +208,6 @@ qt_internal_add_module(Core
         serialization/qjsonvalue.cpp serialization/qjsonvalue.h
         serialization/qjsonwriter.cpp serialization/qjsonwriter_p.h
         serialization/qtextstream.cpp serialization/qtextstream.h serialization/qtextstream_p.h
-        serialization/qxmlstream.cpp serialization/qxmlstream.h serialization/qxmlstream_p.h
-        serialization/qxmlstreamgrammar.cpp serialization/qxmlstreamgrammar_p.h
-        serialization/qxmlstreamparser_p.h
         serialization/qxmlutils.cpp serialization/qxmlutils_p.h
         text/qanystringview.h
         text/qbytearray.cpp text/qbytearray.h text/qbytearray_p.h
@@ -216,6 +220,7 @@ qt_internal_add_module(Core
         text/qcollator.cpp text/qcollator.h text/qcollator_p.h
         text/qdoublescanprint_p.h
         text/qlatin1stringmatcher.cpp text/qlatin1stringmatcher.h
+        text/qlatin1stringview.h
         text/qlocale.cpp text/qlocale.h text/qlocale_p.h
         text/qlocale_data_p.h
         text/qlocale_tools.cpp text/qlocale_tools_p.h
@@ -274,6 +279,7 @@ qt_internal_add_module(Core
         tools/qduplicatetracker_p.h
         tools/qflatmap_p.h
         tools/qfreelist.cpp tools/qfreelist_p.h
+        tools/qfunctionaltools_impl.h
         tools/qhashfunctions.h
         tools/qiterator.h
         tools/qline.cpp tools/qline.h
@@ -298,6 +304,7 @@ qt_internal_add_module(Core
         tools/qsharedpointer.cpp tools/qsharedpointer.h
         tools/qsharedpointer_impl.h
         tools/qsize.cpp tools/qsize.h
+        tools/qspan_p.h
         tools/qstack.h
         tools/qtaggedpointer.h
         tools/qtools_p.h
@@ -341,6 +348,8 @@ qt_internal_add_module(Core
     "${CMAKE_CURRENT_SOURCE_DIR}/Qt6CoreDeploySupport.cmake"
     "${config_build_dir}/QtInstallPaths.cmake"
     ${corelib_extra_cmake_files}
+    POLICIES
+        QTP0002
 )
 _qt_internal_setup_deploy_support()
 
@@ -455,9 +464,6 @@ qt_internal_extend_target(Core
 )
 
 qt_internal_extend_target(Core CONDITION ANDROID
-    SOURCES
-        kernel/qsharedmemory_android.cpp
-        kernel/qsystemsemaphore_android.cpp
     DEFINES
         LIBS_SUFFIX="_${ANDROID_ABI}.so"
 )
@@ -467,12 +473,11 @@ qt_internal_extend_target(Core CONDITION MSVC AND (TEST_architecture_arch STREQU
         "/BASE:0x67000000"
 )
 
-# QtCore can't be compiled with -Wl,-no-undefined because it uses the
-# "environ" variable and FreeBSD does not include a weak symbol for it
-# in libc.
-qt_internal_extend_target(Core CONDITION FREEBSD
-    LINK_OPTIONS
-      "LINKER:--warn-unresolved-symbols"
+qt_internal_extend_target(Core CONDITION QT_FEATURE_xmlstream
+    SOURCES
+        serialization/qxmlstream.cpp serialization/qxmlstream.h serialization/qxmlstream_p.h
+        serialization/qxmlstreamgrammar.cpp serialization/qxmlstreamgrammar_p.h
+        serialization/qxmlstreamparser_p.h
 )
 
 qt_internal_extend_target(Core CONDITION QT_FEATURE_animation
@@ -510,11 +515,10 @@ qt_internal_extend_target(Core CONDITION WIN32
         io/qwindowspipewriter.cpp io/qwindowspipewriter_p.h
         io/qntdll_p.h
         kernel/qcoreapplication_win.cpp
-        kernel/qelapsedtimer_win.cpp
         kernel/qeventdispatcher_win.cpp kernel/qeventdispatcher_win_p.h
         kernel/qfunctions_win.cpp kernel/qfunctions_win_p.h kernel/qfunctions_winrt_p.h
-        kernel/qsharedmemory_win.cpp
-        kernel/qsystemsemaphore_win.cpp
+        ipc/qsharedmemory_win.cpp
+        ipc/qsystemsemaphore_win.cpp
         kernel/qwineventnotifier.cpp kernel/qwineventnotifier.h kernel/qwineventnotifier_p.h
         kernel/qwinregistry.cpp kernel/qwinregistry_p.h
         plugin/qsystemlibrary.cpp plugin/qsystemlibrary_p.h
@@ -571,7 +575,6 @@ qt_internal_extend_target(Core CONDITION APPLE
         kernel/qcore_foundation.mm
         kernel/qcore_mac.mm kernel/qcore_mac_p.h
         kernel/qcoreapplication_mac.cpp
-        kernel/qelapsedtimer_mac.cpp
         kernel/qeventdispatcher_cf.mm kernel/qeventdispatcher_cf_p.h
     LIBRARIES
         ${FWCoreFoundation}
@@ -667,10 +670,6 @@ qt_internal_extend_target(Core CONDITION QT_FEATURE_thread
 qt_internal_extend_target(Core CONDITION QT_FEATURE_thread AND UNIX
     SOURCES
         thread/qwaitcondition_unix.cpp
-    NO_UNITY_BUILD_SOURCES
-        thread/qwaitcondition_unix.cpp
-        # Temporary exclusion until this, https://codereview.qt-project.org/c/qt/qtbase/+/472013,
-        # or this, https://codereview.qt-project.org/c/qt/qtbase/+/471184 addresses the issue.
 )
 
 qt_internal_extend_target(Core CONDITION APPLE AND QT_FEATURE_thread
@@ -817,7 +816,7 @@ qt_internal_extend_target(Core CONDITION QT_FEATURE_regularexpression
         WrapPCRE2::WrapPCRE2
 )
 
-qt_internal_extend_target(Core CONDITION QT_FEATURE_openssl_linked AND QT_FEATURE_opensslv30
+qt_internal_extend_target(Core CONDITION QT_FEATURE_openssl_hash
     LIBRARIES
         WrapOpenSSL::WrapOpenSSL
 )
@@ -971,11 +970,6 @@ qt_internal_extend_target(Core CONDITION APPLE AND NOT MACOS
         ${FWMobileCoreServices}
 )
 
-qt_internal_extend_target(Core CONDITION UNIX AND NOT APPLE
-    SOURCES
-        kernel/qelapsedtimer_unix.cpp
-)
-
 qt_internal_extend_target(Core CONDITION ANDROID
     SOURCES
         io/qstandardpaths_android.cpp
@@ -1098,19 +1092,30 @@ qt_internal_extend_target(Core CONDITION QT_FEATURE_glib AND UNIX
         GLIB2::GLIB2
 )
 
-qt_internal_extend_target(Core CONDITION QT_FEATURE_clock_gettime AND UNIX
+qt_internal_extend_target(Core CONDITION QT_FEATURE_clock_gettime
     LIBRARIES
         WrapRt::WrapRt
 )
 
-qt_internal_extend_target(Core CONDITION UNIX AND NOT ANDROID
+qt_internal_extend_target(Core CONDITION QT_FEATURE_posix_shm AND UNIX
     SOURCES
-        kernel/qsharedmemory_posix.cpp
-        kernel/qsharedmemory_systemv.cpp
-        kernel/qsharedmemory_unix.cpp
-        kernel/qsystemsemaphore_posix.cpp
-        kernel/qsystemsemaphore_systemv.cpp
-        kernel/qsystemsemaphore_unix.cpp
+        ipc/qsharedmemory_posix.cpp
+    LIBRARIES
+        WrapRt::WrapRt
+)
+qt_internal_extend_target(Core CONDITION QT_FEATURE_sysv_shm
+    SOURCES
+        ipc/qsharedmemory_systemv.cpp
+)
+qt_internal_extend_target(Core CONDITION QT_FEATURE_posix_sem
+    SOURCES
+        ipc/qsystemsemaphore_posix.cpp
+    LIBRARIES
+        WrapRt::WrapRt
+)
+qt_internal_extend_target(Core CONDITION QT_FEATURE_sysv_sem
+    SOURCES
+        ipc/qsystemsemaphore_systemv.cpp
 )
 
 qt_internal_extend_target(Core CONDITION VXWORKS
@@ -1305,10 +1310,11 @@ qt_internal_extend_target(Core CONDITION QT_FEATURE_ctf AND QT_FEATURE_library
         tracing
 )
 
+# These files are included by qmutex.cpp
 set_source_files_properties(
     thread/qmutex_mac.cpp
     thread/qmutex_unix.cpp
-    PROPERTIES HEADER_FILE_ONLY ON)  # special case: These files are included by qmutex.cpp!
+    PROPERTIES HEADER_FILE_ONLY ON)
 
 # Remove QT_NO_CAST_TO_ASCII to ensure that the symbols are included in the library.
 if(WIN32)
diff --git a/src/corelib/Qt6AndroidMacros.cmake b/src/corelib/Qt6AndroidMacros.cmake
index 370041fe..c2cf7787 100644
--- a/src/corelib/Qt6AndroidMacros.cmake
+++ b/src/corelib/Qt6AndroidMacros.cmake
@@ -899,6 +899,38 @@ endfunction()
 # properties.
 function(_qt_internal_android_format_deployment_paths target)
     if(QT_BUILD_STANDALONE_TESTS OR QT_BUILDING_QT)
+        set(android_deployment_paths_policy NEW)
+    else()
+        set(policy_path_properties
+            QT_QML_IMPORT_PATH
+            QT_QML_ROOT_PATH
+            QT_ANDROID_PACKAGE_SOURCE_DIR
+            QT_ANDROID_EXTRA_PLUGINS
+            QT_ANDROID_EXTRA_LIBS
+        )
+
+        # Check if any of paths contains the value and stop the evaluation if all properties are
+        # empty or -NOTFOUND
+        set(has_android_paths FALSE)
+        foreach(prop_name IN LISTS policy_path_properties)
+            get_target_property(prop_value ${target} ${prop_name})
+            if(prop_value)
+                set(has_android_paths TRUE)
+                break()
+            endif()
+        endforeach()
+        if(NOT has_android_paths)
+            return()
+        endif()
+
+        __qt_internal_setup_policy(QTP0002 "6.6.0"
+            "Target properties that specify android-specific paths may contain generator\
+            expressions but they must evaluate to valid JSON strings.\
+            Check https://doc.qt.io/qt-6/qt-cmake-policy-qtp0002.html for policy details."
+        )
+        qt6_policy(GET QTP0002 android_deployment_paths_policy)
+    endif()
+    if(android_deployment_paths_policy STREQUAL "NEW")
         # When building standalone tests or Qt itself we obligate developers to not use
         # windows paths when setting QT_* properties below, so their values are used as is when
         # generating deployment settings.
diff --git a/src/corelib/Qt6CTestMacros.cmake b/src/corelib/Qt6CTestMacros.cmake
index fb2ee6d3..a27581dd 100644
--- a/src/corelib/Qt6CTestMacros.cmake
+++ b/src/corelib/Qt6CTestMacros.cmake
@@ -260,6 +260,9 @@ endfunction()
 #                so the argument containing list will look as following:
 #                    -DLIST_ARGUMENT=item1[[;]]item2[[;]]...itemN.
 macro(_qt_internal_test_expect_pass _dir)
+    if(WASM)
+        return()
+    endif()
     set(_test_option_args
       SIMULATE_IN_SOURCE
       NO_CLEAN_STEP
diff --git a/src/corelib/Qt6CoreMacros.cmake b/src/corelib/Qt6CoreMacros.cmake
index bde53f4b..349bb4b4 100644
--- a/src/corelib/Qt6CoreMacros.cmake
+++ b/src/corelib/Qt6CoreMacros.cmake
@@ -93,24 +93,32 @@ function(_qt_internal_create_moc_command infile outfile moc_flags moc_options
         set(extra_output_files "${outfile}.json")
         set(${out_json_file} "${extra_output_files}" PARENT_SCOPE)
     endif()
-    string (REPLACE ";" "\n" _moc_parameters "${_moc_parameters}")
 
     if(moc_target)
         set(_moc_parameters_file ${_moc_parameters_file}$<$<BOOL:$<CONFIG>>:_$<CONFIG>>)
         set(targetincludes "$<TARGET_PROPERTY:${moc_target},INCLUDE_DIRECTORIES>")
         set(targetdefines "$<TARGET_PROPERTY:${moc_target},COMPILE_DEFINITIONS>")
 
-        set(targetincludes "$<$<BOOL:${targetincludes}>:-I$<JOIN:$<REMOVE_DUPLICATES:${targetincludes}>,\n-I>\n>")
-        set(targetdefines "$<$<BOOL:${targetdefines}>:-D$<JOIN:$<REMOVE_DUPLICATES:${targetdefines}>,\n-D>\n>")
+        set(targetincludes "$<$<BOOL:${targetincludes}>:-I$<JOIN:${targetincludes},;-I>>")
+        set(targetdefines "$<$<BOOL:${targetdefines}>:-D$<JOIN:${targetdefines},;-D>>")
+        string(REPLACE ">" "$<ANGLE-R>" _moc_escaped_parameters "${_moc_parameters}")
+        string(REPLACE "," "$<COMMA>"   _moc_escaped_parameters "${_moc_escaped_parameters}")
+
+        set(concatenated "$<$<BOOL:${targetincludes}>:${targetincludes};>$<$<BOOL:${targetdefines}>:${targetdefines};>$<$<BOOL:${_moc_escaped_parameters}>:${_moc_escaped_parameters};>")
+
+        set(concatenated "$<FILTER:$<REMOVE_DUPLICATES:${concatenated}>,EXCLUDE,^-[DI]$>")
+        set(concatenated "$<JOIN:${concatenated},\n>")
 
         file (GENERATE
             OUTPUT ${_moc_parameters_file}
-            CONTENT "${targetdefines}${targetincludes}${_moc_parameters}\n"
+            CONTENT "${concatenated}"
         )
 
+        set(concatenated)
         set(targetincludes)
         set(targetdefines)
     else()
+        string (REPLACE ";" "\n" _moc_parameters "${_moc_parameters}")
         file(WRITE ${_moc_parameters_file} "${_moc_parameters}\n")
     endif()
 
@@ -121,8 +129,12 @@ function(_qt_internal_create_moc_command infile outfile moc_flags moc_options
                        ${_moc_working_dir}
                        VERBATIM)
     set_source_files_properties(${infile} PROPERTIES SKIP_AUTOMOC ON)
-    set_source_files_properties(${outfile} PROPERTIES SKIP_AUTOMOC ON)
-    set_source_files_properties(${outfile} PROPERTIES SKIP_AUTOUIC ON)
+    set_source_files_properties(${outfile} PROPERTIES SKIP_AUTOMOC ON
+                                                      SKIP_AUTOUIC ON
+    )
+    if(CMAKE_VERSION VERSION_GREATER_EQUAL "3.27")
+        set_source_files_properties(${outfile} PROPERTIES SKIP_LINTING ON)
+    endif()
 endfunction()
 
 function(qt6_generate_moc infile outfile )
@@ -434,6 +446,9 @@ function(qt6_add_big_resources outfiles )
 
         _qt6_parse_qrc_file(${infile} _out_depends _rc_depends)
         set_source_files_properties(${infile} PROPERTIES SKIP_AUTOGEN ON)
+        if(CMAKE_VERSION VERSION_GREATER_EQUAL "3.27")
+            set_source_files_properties(${tmpoutfile} PROPERTIES SKIP_LINTING ON)
+        endif()
         add_custom_command(OUTPUT ${tmpoutfile}
                            COMMAND ${QT_CMAKE_EXPORT_NAMESPACE}::rcc ${rcc_options} --name ${outfilename} --pass 1 --output ${tmpoutfile} ${infile}
                            DEPENDS ${infile} ${_rc_depends} "${out_depends}" ${QT_CMAKE_EXPORT_NAMESPACE}::rcc
@@ -660,6 +675,26 @@ function(_qt_internal_finalize_executable target)
     endif()
 endfunction()
 
+function(_cat IN_FILE OUT_FILE)
+  file(READ ${IN_FILE} CONTENTS)
+  file(APPEND ${OUT_FILE} "${CONTENTS}\n")
+endfunction()
+
+function(_qt_internal_finalize_batch name)
+    find_package(Qt6 ${PROJECT_VERSION} CONFIG REQUIRED COMPONENTS Core)
+
+    set(generated_blacklist_file "${CMAKE_CURRENT_BINARY_DIR}/BLACKLIST")
+    get_target_property(blacklist_files "${name}" _qt_blacklist_files)
+    file(WRITE "${generated_blacklist_file}" "")
+    foreach(blacklist_file ${blacklist_files})
+        _cat("${blacklist_file}" "${generated_blacklist_file}")
+    endforeach()
+    qt_internal_add_resource(${name} "batch_blacklist"
+        PREFIX "/"
+        FILES "${CMAKE_CURRENT_BINARY_DIR}/BLACKLIST"
+        BASE ${CMAKE_CURRENT_BINARY_DIR})
+endfunction()
+
 # If a task needs to run before any targets are finalized in the current directory
 # scope, call this function and pass the ID of that task as the argument.
 function(_qt_internal_delay_finalization_until_after defer_id)
@@ -667,6 +702,7 @@ function(_qt_internal_delay_finalization_until_after defer_id)
 endfunction()
 
 function(qt6_finalize_target target)
+    set_property(TARGET ${target} PROPERTY _qt_expects_finalization FALSE)
     if(CMAKE_VERSION VERSION_GREATER_EQUAL "3.19")
         cmake_language(DEFER GET_CALL_IDS ids_queued)
         get_directory_property(wait_for_ids qt_internal_finalizers_wait_for_ids)
@@ -1025,9 +1061,23 @@ function(qt6_extract_metatypes target)
             add_dependencies(${target}_automoc_json_extraction ${target}_autogen)
             _qt_internal_assign_to_internal_targets_folder(${target}_automoc_json_extraction)
         else()
-            set(cmake_autogen_timestamp_file
-                "${target_autogen_build_dir}/timestamp"
-            )
+            set(use_better_automoc_graph FALSE)
+            if(${CMAKE_VERSION} VERSION_GREATER_EQUAL "3.28.0"
+                AND CMAKE_CROSS_CONFIGS)
+                if(DEFINED QT_USE_BETTER_AUTOMOC_GRAPH)
+                    set(use_better_automoc_graph ${QT_USE_BETTER_AUTOMOC_GRAPH})
+                else()
+                    set(use_better_automoc_graph TRUE)
+                endif()
+            endif()
+
+            if(use_better_automoc_graph)
+                set(cmake_autogen_timestamp_file
+                    "${target_autogen_build_dir}/timestamp_$<CONFIG>")
+            else()
+                set(cmake_autogen_timestamp_file
+                    "${target_autogen_build_dir}/timestamp")
+            endif()
 
             add_custom_command(OUTPUT ${type_list_file}
                 DEPENDS ${QT_CMAKE_EXPORT_NAMESPACE}::cmake_automoc_parser
@@ -1485,6 +1535,13 @@ function(__qt_get_relative_resource_path_for_file output_alias file)
     get_property(alias SOURCE ${file} PROPERTY QT_RESOURCE_ALIAS)
     if (NOT alias)
         set(alias "${file}")
+        if(IS_ABSOLUTE "${file}")
+            message(FATAL_ERROR
+                "The source file '${file}' was specified with an absolute path and is used in a Qt "
+                "resource. Please set the QT_RESOURCE_ALIAS property on that source file to a "
+                "relative path to make the file properly accessible via the resource system."
+            )
+        endif()
     endif()
     set(${output_alias} ${alias} PARENT_SCOPE)
 endfunction()
@@ -1887,6 +1944,7 @@ function(_qt_internal_process_resource target resourceName)
         return()
     endif()
     set(generatedResourceFile "${CMAKE_CURRENT_BINARY_DIR}/.rcc/${resourceName}.qrc")
+    _qt_internal_expose_source_file_to_ide(${target} ${generatedResourceFile})
 
     # Generate .qrc file:
 
@@ -1907,10 +1965,15 @@ function(_qt_internal_process_resource target resourceName)
             set(file "${CMAKE_CURRENT_SOURCE_DIR}/${file}")
         endif()
 
+        get_property(is_empty SOURCE ${file} PROPERTY QT_DISCARD_FILE_CONTENTS)
+
         ### FIXME: escape file paths to be XML conform
         # <file ...>...</file>
-        string(APPEND qrcContents "    <file alias=\"${file_resource_path}\">")
-        string(APPEND qrcContents "${file}</file>\n")
+        string(APPEND qrcContents "    <file alias=\"${file_resource_path}\"")
+        if(is_empty)
+            string(APPEND qrcContents " empty=\"true\"")
+        endif()
+        string(APPEND qrcContents ">${file}</file>\n")
         list(APPEND files "${file}")
 
         set(scope_args)
@@ -2017,6 +2080,9 @@ function(_qt_internal_process_resource target resourceName)
         SKIP_UNITY_BUILD_INCLUSION TRUE
         SKIP_PRECOMPILE_HEADERS TRUE
     )
+    if(CMAKE_VERSION VERSION_GREATER_EQUAL "3.27")
+        set_source_files_properties(${generatedOutfile} ${scope_args} PROPERTIES SKIP_LINTING ON)
+    endif()
 
     get_target_property(target_source_dir ${target} SOURCE_DIR)
     if(NOT target_source_dir STREQUAL CMAKE_CURRENT_SOURCE_DIR)
@@ -2804,8 +2870,8 @@ macro(qt6_standard_project_setup)
             endif()
         endforeach()
 
-        # Enable folder support for IDEs. A future CMake version might enable this by default.
-        # See CMake issue #21695.
+        # Enable folder support for IDEs. CMake >= 3.26 enables USE_FOLDERS by default but this is
+        # guarded by CMake policy CMP0143.
         get_property(__qt_use_folders GLOBAL PROPERTY USE_FOLDERS)
         if(__qt_use_folders OR "${__qt_use_folders}" STREQUAL "")
             set_property(GLOBAL PROPERTY USE_FOLDERS ON)
diff --git a/src/corelib/Qt6WasmMacros.cmake b/src/corelib/Qt6WasmMacros.cmake
index 5cb8b73a..3ec4ed58 100644
--- a/src/corelib/Qt6WasmMacros.cmake
+++ b/src/corelib/Qt6WasmMacros.cmake
@@ -23,6 +23,14 @@ function(_qt_internal_wasm_add_target_helpers target)
 
         set(APPNAME ${_target_output_name})
 
+        # Shared library builds preload plugins and qml imports by default.
+        # The json files are generated by scripts in qtbase/util/wasm/preload
+        if (QT_FEATURE_shared)
+            set(PRELOAD "preload: ['qt_plugins.json', 'qt_qml_imports.json'],")
+        else()
+            set(PRELOAD "")
+        endif()
+
         get_target_property(target_output_directory ${target} RUNTIME_OUTPUT_DIRECTORY)
 
         get_target_property(is_test ${target} _qt_is_test_executable)
@@ -87,7 +95,7 @@ endfunction()
 function(_qt_internal_add_wasm_extra_exported_methods target)
     get_target_property(wasm_extra_exported_methods "${target}" QT_WASM_EXTRA_EXPORTED_METHODS)
 
-    set(wasm_default_exported_methods "UTF16ToString,stringToUTF16,JSEvents,specialHTMLTargets")
+    set(wasm_default_exported_methods "UTF16ToString,stringToUTF16,JSEvents,specialHTMLTargets,FS")
 
     if(NOT wasm_extra_exported_methods)
         set(wasm_extra_exported_methods ${QT_WASM_EXTRA_EXPORTED_METHODS})
diff --git a/src/corelib/animation/qabstractanimation.cpp b/src/corelib/animation/qabstractanimation.cpp
index df1557b1..c32053db 100644
--- a/src/corelib/animation/qabstractanimation.cpp
+++ b/src/corelib/animation/qabstractanimation.cpp
@@ -1121,7 +1121,7 @@ void QAbstractAnimation::setDirection(Direction direction)
         return;
     }
 
-    Qt::beginPropertyUpdateGroup();
+    const QScopedPropertyUpdateGroup guard;
     const int oldCurrentLoop = d->currentLoop;
     if (state() == Stopped) {
         if (direction == Backward) {
@@ -1148,7 +1148,6 @@ void QAbstractAnimation::setDirection(Direction direction)
     if (d->currentLoop != oldCurrentLoop)
         d->currentLoop.notify();
     d->direction.notify();
-    Qt::endPropertyUpdateGroup();
 }
 
 QBindable<QAbstractAnimation::Direction> QAbstractAnimation::bindableDirection()
diff --git a/src/corelib/compat/removed_api.cpp b/src/corelib/compat/removed_api.cpp
index 7acbae8a..dde262e7 100644
--- a/src/corelib/compat/removed_api.cpp
+++ b/src/corelib/compat/removed_api.cpp
@@ -303,6 +303,15 @@ int QMetaType::idHelper() const
     return registerHelper(d_ptr);
 }
 
+#if QT_CONFIG(sharedmemory)
+#include "qsharedmemory.h"
+
+void QSharedMemory::setNativeKey(const QString &key)
+{
+    setNativeKey(key, QNativeIpcKey::legacyDefaultTypeForOs());
+}
+#endif
+
 #include "qvariant.h"
 
 // these implementations aren't as efficient as they used to be prior to
@@ -474,3 +483,135 @@ void QXmlStreamWriter::writeStartElement(const QString &namespaceUri, const QStr
 // order sections alphabetically to reduce chances of merge conflicts
 
 #endif // QT_CORE_REMOVED_SINCE(6, 5)
+
+#if QT_CORE_REMOVED_SINCE(6, 6)
+
+#include "qmessageauthenticationcode.h"
+
+QMessageAuthenticationCode::QMessageAuthenticationCode(QCryptographicHash::Algorithm method,
+                                                       const QByteArray &key)
+    : QMessageAuthenticationCode(method, qToByteArrayViewIgnoringNull(key)) {}
+
+void QMessageAuthenticationCode::setKey(const QByteArray &key)
+{
+    setKey(qToByteArrayViewIgnoringNull(key));
+}
+
+void QMessageAuthenticationCode::addData(const QByteArray &data)
+{
+    addData(qToByteArrayViewIgnoringNull(data));
+}
+
+QByteArray QMessageAuthenticationCode::hash(const QByteArray &msg, const QByteArray &key,
+                                            QCryptographicHash::Algorithm method)
+{
+    return hash(qToByteArrayViewIgnoringNull(msg),
+                qToByteArrayViewIgnoringNull(key), method);
+}
+
+#include "qobject.h" // inlined API
+
+#include "qrunnable.h"
+
+QRunnable *QRunnable::create(std::function<void()> functionToRun)
+{
+    return QRunnable::create<std::function<void()>>(std::move(functionToRun));
+}
+
+#include "qstring.h"
+
+qsizetype QString::toUcs4_helper(const ushort *uc, qsizetype length, uint *out)
+{
+    return toUcs4_helper(reinterpret_cast<const char16_t *>(uc), length,
+                         reinterpret_cast<char32_t *>(out));
+}
+
+#if QT_CONFIG(thread)
+#include "qreadwritelock.h"
+
+bool QReadWriteLock::tryLockForRead()
+{
+    return tryLockForRead(0);
+}
+
+bool QReadWriteLock::tryLockForWrite()
+{
+    return tryLockForWrite(0);
+}
+
+#include "qthreadpool.h"
+#include "private/qthreadpool_p.h"
+
+void QThreadPool::start(std::function<void()> functionToRun, int priority)
+{
+    if (!functionToRun)
+        return;
+    start(QRunnable::create(std::move(functionToRun)), priority);
+}
+
+bool QThreadPool::tryStart(std::function<void()> functionToRun)
+{
+    if (!functionToRun)
+        return false;
+
+    Q_D(QThreadPool);
+    QMutexLocker locker(&d->mutex);
+    if (!d->allThreads.isEmpty() && d->areAllThreadsActive())
+        return false;
+
+    QRunnable *runnable = QRunnable::create(std::move(functionToRun));
+    if (d->tryStart(runnable))
+        return true;
+    delete runnable;
+    return false;
+}
+
+void QThreadPool::startOnReservedThread(std::function<void()> functionToRun)
+{
+    if (!functionToRun)
+        return releaseThread();
+
+    startOnReservedThread(QRunnable::create(std::move(functionToRun)));
+}
+
+#endif // QT_CONFIG(thread)
+
+#include "qxmlstream.h"
+
+QStringView QXmlStreamAttributes::value(const QString &namespaceUri, const QString &name) const
+{
+    return value(qToAnyStringViewIgnoringNull(namespaceUri), qToAnyStringViewIgnoringNull(name));
+}
+
+QStringView QXmlStreamAttributes::value(const QString &namespaceUri, QLatin1StringView name) const
+{
+    return value(qToAnyStringViewIgnoringNull(namespaceUri), QAnyStringView(name));
+}
+
+QStringView QXmlStreamAttributes::value(QLatin1StringView namespaceUri, QLatin1StringView name) const
+{
+    return value(QAnyStringView(namespaceUri), QAnyStringView(name));
+}
+
+QStringView QXmlStreamAttributes::value(const QString &qualifiedName) const
+{
+    return value(qToAnyStringViewIgnoringNull(qualifiedName));
+}
+
+QStringView QXmlStreamAttributes::value(QLatin1StringView qualifiedName) const
+{
+    return value(QAnyStringView(qualifiedName));
+}
+
+// inlined API
+#if QT_CONFIG(thread)
+#include "qmutex.h"
+#include "qreadwritelock.h"
+#include "qsemaphore.h"
+#endif
+
+// #include "qotherheader.h"
+// // implement removed functions from qotherheader.h
+// order sections alphabetically to reduce chances of merge conflicts
+
+#endif // QT_CORE_REMOVED_SINCE(6, 6)
diff --git a/src/corelib/configure.cmake b/src/corelib/configure.cmake
index 7d52f48f..6f4cb49e 100644
--- a/src/corelib/configure.cmake
+++ b/src/corelib/configure.cmake
@@ -98,6 +98,18 @@ clock_gettime(CLOCK_MONOTONIC, &ts);
 }
 ")
 
+# close_range
+qt_config_compile_test(close_range
+    LABEL "close_range()"
+    CODE
+"#include <unistd.h>
+
+int main()
+{
+    return close_range(3, 1024, 0) != 0;
+}
+")
+
 # cloexec
 qt_config_compile_test(cloexec
     LABEL "O_CLOEXEC"
@@ -125,7 +137,6 @@ int pipes[2];
 }
 ")
 
-# special case begin
 # cxx11_future
 if (UNIX AND NOT ANDROID AND NOT QNX AND NOT INTEGRITY)
     set(cxx11_future_TEST_LIBRARIES pthread)
@@ -146,7 +157,6 @@ std::future<int> f = std::async([]() { return 42; });
     return 0;
 }
 ")
-# special case end
 
 # cxx11_random
 qt_config_compile_test(cxx11_random
@@ -297,49 +307,71 @@ inotify_rm_watch(0, 1);
 }
 ")
 
-# ipc_sysv
-qt_config_compile_test(ipc_sysv
-    LABEL "SysV IPC"
+qt_config_compile_test(sysv_shm
+    LABEL "System V/XSI shared memory"
     CODE
 "#include <sys/types.h>
 #include <sys/ipc.h>
-#include <sys/sem.h>
 #include <sys/shm.h>
 #include <fcntl.h>
 
 int main(void)
 {
-    /* BEGIN TEST: */
-key_t unix_key = ftok(\"test\", 'Q');
-semctl(semget(unix_key, 1, 0666 | IPC_CREAT | IPC_EXCL), 0, IPC_RMID, 0);
-shmget(unix_key, 0, 0666 | IPC_CREAT | IPC_EXCL);
-shmctl(0, 0, (struct shmid_ds *)(0));
-    /* END TEST: */
+    key_t unix_key = ftok(\"test\", 'Q');
+    shmget(unix_key, 0, 0666 | IPC_CREAT | IPC_EXCL);
+    shmctl(0, 0, (struct shmid_ds *)(0));
+    return 0;
+}
+")
+
+qt_config_compile_test(sysv_sem
+    LABEL "System V/XSI semaphores"
+    CODE
+"#include <sys/types.h>
+#include <sys/ipc.h>
+#include <sys/sem.h>
+#include <fcntl.h>
+
+int main(void)
+{
+    key_t unix_key = ftok(\"test\", 'Q');
+    semctl(semget(unix_key, 1, 0666 | IPC_CREAT | IPC_EXCL), 0, IPC_RMID, 0);
     return 0;
 }
 ")
 
-# ipc_posix
 if (LINUX)
-    set(ipc_posix_TEST_LIBRARIES pthread rt)
+    set(ipc_posix_TEST_LIBRARIES pthread WrapRt::WrapRt)
 endif()
-qt_config_compile_test(ipc_posix
-    LABEL "POSIX IPC"
+qt_config_compile_test(posix_shm
+    LABEL "POSIX shared memory"
     LIBRARIES
      "${ipc_posix_TEST_LIBRARIES}"
     CODE
 "#include <sys/types.h>
 #include <sys/mman.h>
+#include <fcntl.h>
+
+int main(void)
+{
+    shm_open(\"test\", O_RDWR | O_CREAT | O_EXCL, 0666);
+    shm_unlink(\"test\");
+    return 0;
+}
+")
+
+qt_config_compile_test(posix_sem
+    LABEL "POSIX semaphores"
+    LIBRARIES
+     "${ipc_posix_TEST_LIBRARIES}"
+    CODE
+"#include <sys/types.h>
 #include <semaphore.h>
 #include <fcntl.h>
 
 int main(void)
 {
-    /* BEGIN TEST: */
-sem_close(sem_open(\"test\", O_CREAT | O_EXCL, 0666, 0));
-shm_open(\"test\", O_RDWR | O_CREAT | O_EXCL, 0666);
-shm_unlink(\"test\");
-    /* END TEST: */
+    sem_close(sem_open(\"test\", O_CREAT | O_EXCL, 0666, 0));
     return 0;
 }
 ")
@@ -531,7 +563,12 @@ qt_feature("clock-monotonic" PUBLIC
     CONDITION QT_FEATURE_clock_gettime AND TEST_clock_monotonic
 )
 qt_feature_definition("clock-monotonic" "QT_NO_CLOCK_MONOTONIC" NEGATE VALUE "1")
-qt_feature("doubleconversion" PUBLIC PRIVATE
+qt_feature("close_range" PRIVATE
+    LABEL "close_range()"
+    CONDITION QT_FEATURE_process AND TEST_close_range
+    AUTODETECT UNIX
+)
+qt_feature("doubleconversion" PRIVATE
     LABEL "DoubleConversion"
 )
 qt_feature_definition("doubleconversion" "QT_NO_DOUBLECONVERSION" NEGATE VALUE "1")
@@ -592,9 +629,11 @@ qt_feature("inotify" PUBLIC PRIVATE
 )
 qt_feature_definition("inotify" "QT_NO_INOTIFY" NEGATE VALUE "1")
 qt_feature("ipc_posix"
-    LABEL "Using POSIX IPC"
-    AUTODETECT NOT WIN32 AND ( ( APPLE AND QT_FEATURE_appstore_compliant ) OR NOT TEST_ipc_sysv )
-    CONDITION TEST_ipc_posix
+    LABEL "Defaulting legacy IPC to POSIX"
+    CONDITION TEST_posix_shm AND TEST_posix_sem AND (
+        FEATURE_ipc_posix OR (APPLE AND QT_FEATURE_appstore_compliant)
+        OR NOT TEST_sysv_shm OR NOT TEST_sysv_sem
+    )
 )
 qt_feature_definition("ipc_posix" "QT_POSIX_IPC")
 qt_feature("journald" PRIVATE
@@ -662,6 +701,14 @@ qt_feature("poll_select" PRIVATE
     EMIT_IF NOT WIN32
 )
 qt_feature_definition("poll_select" "QT_NO_NATIVE_POLL")
+qt_feature("posix_sem" PRIVATE
+    LABEL "POSIX semaphores"
+    CONDITION TEST_posix_sem
+)
+qt_feature("posix_shm" PRIVATE
+    LABEL "POSIX shared memory"
+    CONDITION TEST_posix_shm AND UNIX
+)
 qt_feature("qqnx_pps" PRIVATE
     LABEL "PPS"
     CONDITION PPS_FOUND
@@ -684,6 +731,14 @@ qt_feature("syslog" PRIVATE
     AUTODETECT OFF
     CONDITION TEST_syslog
 )
+qt_feature("sysv_sem" PRIVATE
+    LABEL "System V / XSI semaphores"
+    CONDITION TEST_sysv_sem
+)
+qt_feature("sysv_shm" PRIVATE
+    LABEL "System V / XSI shared memory"
+    CONDITION TEST_sysv_shm
+)
 qt_feature("threadsafe-cloexec"
     LABEL "Threadsafe pipe creation"
     CONDITION TEST_cloexec
@@ -705,7 +760,7 @@ qt_feature("sharedmemory" PUBLIC
     SECTION "Kernel"
     LABEL "QSharedMemory"
     PURPOSE "Provides access to a shared memory segment."
-    CONDITION ( ANDROID OR WIN32 OR ( NOT VXWORKS AND ( TEST_ipc_sysv OR TEST_ipc_posix ) ) )
+    CONDITION WIN32 OR TEST_sysv_shm OR TEST_posix_shm
 )
 qt_feature_definition("sharedmemory" "QT_NO_SHAREDMEMORY" NEGATE VALUE "1")
 qt_feature("shortcut" PUBLIC
@@ -718,7 +773,7 @@ qt_feature("systemsemaphore" PUBLIC
     SECTION "Kernel"
     LABEL "QSystemSemaphore"
     PURPOSE "Provides a general counting system semaphore."
-    CONDITION ( NOT INTEGRITY AND NOT VXWORKS AND NOT rtems ) AND ( ANDROID OR WIN32 OR TEST_ipc_sysv OR TEST_ipc_posix )
+    CONDITION WIN32 OR TEST_sysv_sem OR TEST_posix_sem
 )
 qt_feature_definition("systemsemaphore" "QT_NO_SYSTEMSEMAPHORE" NEGATE VALUE "1")
 qt_feature("xmlstream" PUBLIC
@@ -729,23 +784,21 @@ qt_feature("xmlstream" PUBLIC
 qt_feature("cpp-winrt" PRIVATE PUBLIC
     LABEL "cpp/winrt base"
     PURPOSE "basic cpp/winrt language projection support"
+    AUTODETECT WIN32
     CONDITION WIN32 AND TEST_cpp_winrt
 )
-qt_feature_definition("xmlstream" "QT_NO_XMLSTREAM" NEGATE VALUE "1")
 qt_feature("xmlstreamreader" PUBLIC
     SECTION "Kernel"
     LABEL "QXmlStreamReader"
     PURPOSE "Provides a well-formed XML parser with a simple streaming API."
     CONDITION QT_FEATURE_xmlstream
 )
-qt_feature_definition("xmlstreamreader" "QT_NO_XMLSTREAMREADER" NEGATE VALUE "1")
 qt_feature("xmlstreamwriter" PUBLIC
     SECTION "Kernel"
     LABEL "QXmlStreamWriter"
     PURPOSE "Provides a XML writer with a simple streaming API."
     CONDITION QT_FEATURE_xmlstream
 )
-qt_feature_definition("xmlstreamwriter" "QT_NO_XMLSTREAMWRITER" NEGATE VALUE "1")
 qt_feature("textdate" PUBLIC
     SECTION "Data structures"
     LABEL "Text Date"
@@ -963,22 +1016,31 @@ qt_feature("permissions" PUBLIC
     SECTION "Utilities"
     LABEL "Application permissions"
     PURPOSE "Provides support for requesting user permission to access restricted data or APIs"
-    CONDITION APPLE OR ANDROID OR WASM
 )
+qt_feature("openssl-hash" PRIVATE
+    LABEL "OpenSSL based cryptographic hash"
+    AUTODETECT OFF
+    CONDITION QT_FEATURE_openssl_linked AND QT_FEATURE_opensslv30
+    PURPOSE "Uses OpenSSL based implementation of cryptographic hash algorithms."
+)
+
 qt_configure_add_summary_section(NAME "Qt Core")
 qt_configure_add_summary_entry(ARGS "backtrace")
 qt_configure_add_summary_entry(ARGS "doubleconversion")
 qt_configure_add_summary_entry(ARGS "system-doubleconversion")
+qt_configure_add_summary_entry(ARGS "forkfd_pidfd" CONDITION LINUX)
 qt_configure_add_summary_entry(ARGS "glib")
 qt_configure_add_summary_entry(ARGS "icu")
 qt_configure_add_summary_entry(ARGS "system-libb2")
 qt_configure_add_summary_entry(ARGS "mimetype-database")
-qt_configure_add_summary_entry(ARGS "cpp-winrt")
+qt_configure_add_summary_entry(ARGS "permissions")
+qt_configure_add_summary_entry(ARGS "ipc_posix" CONDITION UNIX)
 qt_configure_add_summary_entry(
     TYPE "firstAvailableFeature"
     ARGS "etw lttng ctf"
     MESSAGE "Tracing backend"
 )
+qt_configure_add_summary_entry(ARGS "openssl-hash")
 qt_configure_add_summary_section(NAME "Logging backends")
 qt_configure_add_summary_entry(ARGS "journald")
 qt_configure_add_summary_entry(ARGS "syslog")
@@ -990,11 +1052,6 @@ qt_configure_add_summary_entry(
 )
 qt_configure_add_summary_entry(ARGS "pcre2")
 qt_configure_add_summary_entry(ARGS "system-pcre2")
-qt_configure_add_summary_entry(
-    ARGS "forkfd_pidfd"
-    CONDITION LINUX
-)
-qt_configure_add_summary_entry(ARGS "permissions")
 qt_configure_end_summary_section() # end of "Qt Core" section
 qt_configure_add_report_entry(
     TYPE NOTE
diff --git a/src/corelib/doc/snippets/code/doc_src_qiterator.cpp b/src/corelib/doc/snippets/code/doc_src_qiterator.cpp
index f033a7e1..0d921b87 100644
--- a/src/corelib/doc/snippets/code/doc_src_qiterator.cpp
+++ b/src/corelib/doc/snippets/code/doc_src_qiterator.cpp
@@ -25,15 +25,6 @@ while (i.hasNext())
     float f = i.next();
 //! [6]
 
-
-//! [7]
-QSetIterator<QString> i(set);
-i.toBack();
-while (i.hasPrevious())
-    QString s = i.previous();
-//! [7]
-
-
 //! [8]
 QList<float> list;
 ...
diff --git a/src/corelib/doc/snippets/code/doc_src_resources.qdoc b/src/corelib/doc/snippets/code/doc_src_resources.qdoc
index a2e515ce..f5a12ee8 100644
--- a/src/corelib/doc/snippets/code/doc_src_resources.qdoc
+++ b/src/corelib/doc/snippets/code/doc_src_resources.qdoc
@@ -26,3 +26,7 @@
 //! [3]
 rcc -binary myresource.qrc -o myresource.rcc
 //! [3]
+
+//! [4]
+<file empty="true">Button.qml</file>
+//! [4]
diff --git a/src/corelib/doc/snippets/code/src_corelib_io_qsettings.cpp b/src/corelib/doc/snippets/code/src_corelib_io_qsettings.cpp
index 9ec7d1fb..5774add2 100644
--- a/src/corelib/doc/snippets/code/src_corelib_io_qsettings.cpp
+++ b/src/corelib/doc/snippets/code/src_corelib_io_qsettings.cpp
@@ -45,7 +45,7 @@ settings.value("HKEY_CURRENT_USER\\MySoft\\Star Runner\\Galaxy\\Default"); // re
 
 
 //! [7]
-#ifdef Q_OS_MAC
+#ifdef Q_OS_DARWIN
     QSettings settings("grenoullelogique.fr", "Squash");
 #else
     QSettings settings("Grenoulle Logique", "Squash");
diff --git a/src/corelib/doc/snippets/code/src_corelib_kernel_qsystemsemaphore.cpp b/src/corelib/doc/snippets/code/src_corelib_kernel_qsystemsemaphore.cpp
index d1afba27..45da88c7 100644
--- a/src/corelib/doc/snippets/code/src_corelib_kernel_qsystemsemaphore.cpp
+++ b/src/corelib/doc/snippets/code/src_corelib_kernel_qsystemsemaphore.cpp
@@ -2,7 +2,7 @@
 // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
 
 //! [0]
-QSystemSemaphore sem("market", 3, QSystemSemaphore::Create);
+QSystemSemaphore sem(QSystemSemaphore::platformSafeKey("market"), 3, QSystemSemaphore::Create);
                              // resources available == 3
 sem.acquire();               // resources available == 2
 sem.acquire();               // resources available == 1
@@ -13,7 +13,7 @@ sem.release(2);              // resources available == 3
 
 
 //! [1]
-QSystemSemaphore sem("market", 5, QSystemSemaphore::Create);
+QSystemSemaphore sem(QSystemSemaphore::platformSafeKey("market"), 5, QSystemSemaphore::Create);
 for (int i = 0; i < 5; ++i)  // acquire all 5 resources
     sem.acquire();
 sem.release(5);              // release the 5 resources
diff --git a/src/corelib/doc/snippets/code/src_corelib_thread_qfuture.cpp b/src/corelib/doc/snippets/code/src_corelib_thread_qfuture.cpp
index 9a6181e0..500d7cc7 100644
--- a/src/corelib/doc/snippets/code/src_corelib_thread_qfuture.cpp
+++ b/src/corelib/doc/snippets/code/src_corelib_thread_qfuture.cpp
@@ -239,9 +239,9 @@ auto future = QtConcurrent::run([] {
 
 //! [20]
 QObject *context = ...;
-auto future = cachedResultsReady ? QtFuture::makeReadyFuture(results)
-                                 : QtConcurrent::run([] { /* compute results */});
-auto continuation = future.then(context, [] (Results results) {
+auto future = cachedResultsReady ? QtFuture::makeReadyValueFuture(result)
+                                 : QtConcurrent::run([] { /* compute result */});
+auto continuation = future.then(context, [] (Result result) {
     // Runs in the context's thread
 }).then([] {
     // May or may not run in the context's thread
@@ -399,3 +399,44 @@ p.start();
 p.addResult(42);
 p.finish();
 //! [31]
+
+//! [32]
+const std::vector<int> values{1, 2, 3};
+auto f = QtFuture::makeReadyRangeFuture(values);
+//! [32]
+
+//! [33]
+auto f = QtFuture::makeReadyRangeFuture({1, 2, 3});
+//! [33]
+
+//! [34]
+const int count = f.resultCount(); // count == 3
+const auto results = f.results(); // results == { 1, 2, 3 }
+//! [34]
+
+//! [35]
+auto f = QtFuture::makeReadyValueFuture(std::make_unique<int>(42));
+...
+const int result = *f.takeResult(); // result == 42
+//! [35]
+
+//! [36]
+auto f = QtFuture::makeReadyVoidFuture();
+...
+const bool started = f.isStarted(); // started == true
+const bool running = f.isRunning(); // running == false
+const bool finished = f.isFinished(); // finished == true
+//! [36]
+
+//! [37]
+QObject *context = ...;
+auto future = ...;
+auto continuation = future.then(context, [context](Result result) {
+                               // ...
+                           }).onCanceled([context = QPointer(context)] {
+                               if (!context)
+                                   return;  // context was destroyed already
+                               // handle cancellation
+                           });
+
+//! [37]
diff --git a/src/corelib/doc/snippets/code/src_corelib_thread_qsemaphore.cpp b/src/corelib/doc/snippets/code/src_corelib_thread_qsemaphore.cpp
index a46e10c7..d7c9b900 100644
--- a/src/corelib/doc/snippets/code/src_corelib_thread_qsemaphore.cpp
+++ b/src/corelib/doc/snippets/code/src_corelib_thread_qsemaphore.cpp
@@ -35,6 +35,12 @@ sem.tryAcquire(250, 1000);    // sem.available() == 5, waits 1000 milliseconds a
 sem.tryAcquire(3, 30000);     // sem.available() == 2, returns true without waiting
 //! [3]
 
+//! [tryAcquire-QDeadlineTimer]
+QSemaphore sem(5);                          // sem.available() == 5
+sem.tryAcquire(250, QDeadlineTimer(1000));  // sem.available() == 5, waits 1000 milliseconds and returns false
+sem.tryAcquire(3, QDeadlineTimer(30s));     // sem.available() == 2, returns true without waiting
+//! [tryAcquire-QDeadlineTimer]
+
 //! [4]
 // ... do something that may throw or return early
 sem.release();
diff --git a/src/corelib/doc/snippets/ntfsp.cpp b/src/corelib/doc/snippets/ntfsp.cpp
index b4d59e6a..18f9bd0c 100644
--- a/src/corelib/doc/snippets/ntfsp.cpp
+++ b/src/corelib/doc/snippets/ntfsp.cpp
@@ -11,3 +11,18 @@ qt_ntfs_permission_lookup++; // turn checking on
 qt_ntfs_permission_lookup--; // turn it off again
 //! [1]
 
+//! [raii]
+void complexFunction()
+{
+    QNtfsPermissionCheckGuard permissionGuard;  // check is enabled
+
+    // do complex things here that need permission check enabled
+
+}   // as the guard goes out of scope the check is disabled
+//! [raii]
+
+//! [free-funcs]
+qAreNtfsPermissionChecksEnabled();   // check status
+qEnableNtfsPermissionChecks();       // turn checking on
+qDisableNtfsPermissionChecks();      // turn it off again
+//! [free-funcs]
diff --git a/src/corelib/doc/snippets/qstring/stringbuilder.cpp b/src/corelib/doc/snippets/qstring/stringbuilder.cpp
index e9eac1f5..a48f9858 100644
--- a/src/corelib/doc/snippets/qstring/stringbuilder.cpp
+++ b/src/corelib/doc/snippets/qstring/stringbuilder.cpp
@@ -1,6 +1,8 @@
 // Copyright (C) 2016 The Qt Company Ltd.
 // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
 
+#include <QString>
+
 using namespace Qt::StringLiterals;
 
 //! [0]
@@ -21,3 +23,24 @@ using namespace Qt::StringLiterals;
     QLatin1StringView world("world");
     QString message =  hello % el % world % QChar('!');
 //! [5]
+
+//! [6]
+    QString str("QStringBuilder");
+
+    // "s" type is deduced as QStringBuilder
+    auto s = "Like hot glue, " % str % " concatenates strings";
+
+    // Similarly the return type of this lambda is deduced as QStringBuilder
+    auto concatenateStr = []() {
+        return "Like hot glue, " % str % " concatenates strings";
+    };
+//! [6]
+
+//! [7]
+    QString s = "Like hot glue, " % str % " concatenates strings";
+
+    // With a lambda, specify a trailing return type
+    auto concatenateStr = []() -> QString {
+        return "Like hot glue, " % str % " concatenates strings";
+    };
+//! [7]
diff --git a/src/corelib/doc/src/cbor.qdoc b/src/corelib/doc/src/cbor.qdoc
index 1deeb19b..1358480b 100644
--- a/src/corelib/doc/src/cbor.qdoc
+++ b/src/corelib/doc/src/cbor.qdoc
@@ -6,6 +6,7 @@
     \title CBOR Support in Qt
     \ingroup qt-basic-concepts
     \brief An overview of CBOR support in Qt.
+    \ingroup explanations-dataprocessingandio
 
     \ingroup frameworks-technologies
 
diff --git a/src/corelib/doc/src/cmake/cmake-configure-variables.qdoc b/src/corelib/doc/src/cmake/cmake-configure-variables.qdoc
index 86fcb794..a777dd7d 100644
--- a/src/corelib/doc/src/cmake/cmake-configure-variables.qdoc
+++ b/src/corelib/doc/src/cmake/cmake-configure-variables.qdoc
@@ -344,7 +344,7 @@ Set \c QT_NO_COLLECT_BUILD_TREE_APK_DEPS to \c TRUE to disable this behavior.
 
 When using CMake version 3.21 or later, the build system collects the locations of
 imported shared library targets that might be relevant for deployment.
-The collected targets are those that are reachable from the the directory scope
+The collected targets are those that are reachable from the directory scope
 of the currently processed executable target. That includes the target's source directory
 scope and its parents.
 The collected locations are passed to \l androiddeployqt for deployment consideration when
diff --git a/src/corelib/doc/src/cmake/cmake-properties.qdoc b/src/corelib/doc/src/cmake/cmake-properties.qdoc
index a933c242..fb167a7b 100644
--- a/src/corelib/doc/src/cmake/cmake-properties.qdoc
+++ b/src/corelib/doc/src/cmake/cmake-properties.qdoc
@@ -444,6 +444,33 @@ the property value overrides the runtime path where the resource file is found.
 \sa{The Qt Resource System}
 */
 
+/*!
+\page cmake-source-file-property-qt-discard-file-contents.html
+\ingroup cmake-source-file-properties-qtcore
+
+\title QT_DISCARD_FILE_CONTENTS
+\target cmake-source-file-property-QT_DISCARD_FILE_CONTENTS
+
+\summary {Specifies that the given files should be empty in the resource file system}
+
+\cmakepropertysince 6.6
+\preliminarycmakeproperty
+
+When using the target-based variant of \l{qt6_add_resources}{qt_add_resources}
+or \l{qt_add_qml_module}, setting this property to \c TRUE causes the file
+contents to be omitted when creating the resource file system. The file name is
+retained.
+
+This is useful if you want to strip QML source code from the binary.
+
+\note If you omit the QML source code from the binary, the QML engine has to
+rely on the compilation units created by \l{qmlcachegen} or \l{qmlsc}.
+Those are tied to the specific version of Qt they were built with. If you change
+the version of Qt your application uses, they can't be loaded anymore.
+
+\sa{The Qt Resource System}
+*/
+
 /*!
 \page cmake-target-property-qt-wasm-pthread-pool-size.html
 \ingroup cmake-properties-qtcore
diff --git a/src/corelib/doc/src/cmake/policy/qtp0002.qdoc b/src/corelib/doc/src/cmake/policy/qtp0002.qdoc
new file mode 100644
index 00000000..a40344a1
--- /dev/null
+++ b/src/corelib/doc/src/cmake/policy/qtp0002.qdoc
@@ -0,0 +1,63 @@
+// Copyright (C) 2023 The Qt Company Ltd.
+// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GFDL-1.3-no-invariants-only
+
+/*!
+\page qt-cmake-policy-qtp0002.html
+\ingroup qt-cmake-policies
+
+\title QTP0002
+\keyword qt_cmake_policy_qtp0002
+
+\summary {Target properties that specify Android-specific paths may contain generator expressions.}
+
+This policy was introduced in Qt 6.6. It changes the processing of target
+properties that specify Android-specific paths:
+\list
+    \li \l QT_QML_IMPORT_PATH
+    \li \l QT_QML_ROOT_PATH
+    \li \l QT_ANDROID_PACKAGE_SOURCE_DIR
+    \li \l QT_ANDROID_EXTRA_PLUGINS
+    \li \l QT_ANDROID_EXTRA_LIBS
+\endlist
+
+The \c OLD behavior of this policy doesn't allow generator expressions in the
+target properties that specify Android-specific paths but implicitly converts
+the specified paths to valid JSON strings.
+
+The \c NEW behavior of this policy allows using generator expressions in the
+target properties that specify Android-specific paths, but they must evaluate to
+valid JSON strings.
+
+The following value of the \l QT_ANDROID_EXTRA_PLUGINS property is converted to
+a valid JSON string if you set the policy to OLD, but leads to an error if the
+policy is set to NEW:
+\badcode
+set_target_properties(
+    QT_ANDROID_EXTRA_PLUGINS "\\path\\to\\MyPlugin.so"
+)
+\endcode
+If the policy is set to NEW for the above example, the resulting JSON string in
+the deployment settings file will contain escaped symbols instead of path
+separators.
+
+Generator expressions are only supported if the policy is set to NEW, so the
+OLD behavior generates a malformed deployment settings file with the following
+code:
+\badcode
+set_target_properties(
+    QT_ANDROID_EXTRA_PLUGINS "$<TARGET_FILE_DIR:MyPlugin>"
+)
+\endcode
+
+This property value works as expected with both OLD and NEW policy values:
+\badcode
+set_target_properties(
+    QT_ANDROID_EXTRA_PLUGINS "/path/to/MyPlugin.so"
+)
+\endcode
+
+\qtpolicydeprecatedbehavior
+
+\sa qt_policy, {Qt CMake policies}
+
+*/
diff --git a/src/corelib/doc/src/cmake/qt_policy.qdoc b/src/corelib/doc/src/cmake/qt_policy.qdoc
index 7c44b4d8..6deb7a72 100644
--- a/src/corelib/doc/src/cmake/qt_policy.qdoc
+++ b/src/corelib/doc/src/cmake/qt_policy.qdoc
@@ -58,8 +58,7 @@ You can set \c behavior to one of the following options:
 \li \c{OLD} to explicitly opt-out of it
 \endlist
 
-\note The \c{OLD} behavior of a policy is deprecated, and may
-be removed in the future.
+\qtpolicydeprecatedbehavior
 
 \sa qt_standard_project_setup
 
diff --git a/src/corelib/doc/src/containers.qdoc b/src/corelib/doc/src/containers.qdoc
index 4a7d5dc1..df828307 100644
--- a/src/corelib/doc/src/containers.qdoc
+++ b/src/corelib/doc/src/containers.qdoc
@@ -353,7 +353,7 @@
     \section3 Java-Style Iterators
     \l{java-style-iterators}{Java-Style iterators} were introduced in Qt 4. Their API is modelled
     on Java's iterator classes.
-    New code should should prefer \l{STL-Style Iterators}.
+    New code should prefer \l{STL-Style Iterators}.
 
     \section1 Qt containers compared with std containers
 
diff --git a/src/corelib/doc/src/includes/android-content-uri-limitations.qdocinc b/src/corelib/doc/src/includes/android-content-uri-limitations.qdocinc
index f0808640..0521aff6 100644
--- a/src/corelib/doc/src/includes/android-content-uri-limitations.qdocinc
+++ b/src/corelib/doc/src/includes/android-content-uri-limitations.qdocinc
@@ -3,7 +3,7 @@ On Android, some limitations apply when dealing with
 \list
     \li Access permissions might be needed by prompting the user through the
         \l QFileDialog which implements
-        \l {Access documents and other files from shared storage}{Android's native file picker}.
+        \l {Android: Access documents and other files from shared storage}{Android's native file picker}.
         \li Aim to follow the \l {Android: Scoped storage}{Scoped storage} guidelines,
             such as using app specific directories instead of other public external directories.
             For more information, also see
diff --git a/src/corelib/doc/src/includes/qstring.qdocinc b/src/corelib/doc/src/includes/qstring.qdocinc
index a3c8810a..dade4f0a 100644
--- a/src/corelib/doc/src/includes/qstring.qdocinc
+++ b/src/corelib/doc/src/includes/qstring.qdocinc
@@ -22,3 +22,15 @@ Returns -1 if \a \2 is not found.
 Returns the index position of the last occurrence of the \1 \a \2
 in this string, searching backward from index position \a from.
 //! [qstring-last-index-of]
+
+//! [qstring-local-8-bit-equivalent]
+On Unix systems this is equivalent to \1().
+Note that on Apple systems this function does not take
+\c\l{https://developer.apple.com/documentation/foundation/nsstring/1410091-defaultcstringencoding?language=objc}
+{NSString.defaultCStringEncoding} or
+\c\l{https://developer.apple.com/documentation/corefoundation/1541720-cfstringgetsystemencoding?language=objc}
+{CFStringGetSystemEncoding()} into account, as these functions
+typically return the legacy "Western (Mac OS Roman)" encoding,
+which should not be used on modern Apple operating systems.
+On Windows the system's current code page is used.
+//! [qstring-local-8-bit-equivalent]
diff --git a/src/corelib/doc/src/ipc.qdoc b/src/corelib/doc/src/ipc.qdoc
new file mode 100644
index 00000000..e60dae82
--- /dev/null
+++ b/src/corelib/doc/src/ipc.qdoc
@@ -0,0 +1,489 @@
+// Copyright (C) 2022 Intel Corporation.
+// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GFDL-1.3-no-invariants-only
+
+/*!
+    \page ipc.html
+    \title Inter-Process Communication
+    \ingroup groups
+    \ingroup frameworks-technologies
+    \keyword ipc
+    \ingroup explanations-networkingandconnectivity
+
+    \brief An overview of Qt's inter-process communication functionality
+
+    Qt supports many ways of communicating with other processes running in the
+    same system or in different systems. There are basically three types of
+    inter-process communication mechanisms:
+
+    \list 1
+       \li Synchronization primitives
+       \li Exchanging of arbitrary byte-level data
+       \li Passing structured messages
+    \endlist
+
+    \section1 Synchronization primitives
+
+    Qt only provides one class for explicit inter-process synchronization:
+    \l{QSystemSemaphore}. A QSystemSemaphore is like a \l{QSemaphore} that is
+    accessible by multiple processes in the same system. It is globally
+    identified by a "key", which in Qt is represented by the \l{QNativeIpcKey}
+    class. Additionally, depending on the OS, Qt may support multiple different
+    backends for sharing memory; see the \l{Native IPC Keys} documentation for
+    more information and limitations.
+
+    It is possible to use regular thread-synchronization primitives such as
+    mutexes, wait conditions, and read-write locks, located in memory that is
+    shared between processes. Qt does not provide any class to support this,
+    but applications can use low-level operations on certain operating systems.
+
+    Other Qt classes may be used to provide higher-level locking, like
+    \l{QLockFile}, or by acquiring a unique, system-wide resource. Such
+    techniques include \l{QTcpServer}{TCP} or \l{QUdpSocket}{UDP} ports or
+    well-known names in \l{QDBusConnection::registerService}{D-Bus}.
+
+    \section1 Byte-level data sharing
+
+    Using byte-level data, applications can implement any communication
+    protocol they may choose. Sharing of byte data can be stream-oriented
+    (serialized) or can allow random access (a similar condition to
+    QFileDevice::isSequential()).
+
+    For serial communication, Qt provides a number of different classes and
+    even full modules:
+    \list
+      \li Pipes and FIFOs: \l QFile
+      \li Child processes: \l QProcess
+      \li Sockets: \l QTcpSocket, \l QUdpSocket (in \l{Qt Network})
+      \li HTTP(S): \l QNetworkAccessManager (in \l{Qt Network}) and
+                   \l QHttpServer (in \l{Qt HTTP Server})
+      \li CoAP(S): \l QCoapClient (in \l{Qt CoAP})
+    \endlist
+
+    For random-access data sharing within the same system, Qt provides
+    \l{QSharedMemory}. See the \l{Shared Memory} documentation for detailed
+    information.
+
+    \section1 Structured message passing
+
+    Qt also provides a number of techniques to exchange structured messages
+    with other processes. Applications can build on top of the byte-level
+    solutions above, such as by using \l QJsonDocument or \l QXmlStreamReader /
+    \l QXmlStreamWriter over HTTP to perform JSONRPC or XMLRPC, respectively,
+    or \l QCborValue with QtCoAP.
+
+    Dedicated Qt modules for structured messages and remote procedure-calling
+    include:
+    \list
+      \li \l{Qt D-Bus}
+      \li \l{Qt Remote Objects}
+      \li \l{Qt WebSockets}
+    \endlist
+*/
+
+/*!
+    \page shared-memory.html
+    \title Shared Memory
+    \keyword ipc
+    \keyword shared memory
+
+    \brief Overview of the techniques for sharing memory between processes
+
+    Qt provides two techniques to share memory with other processes in the same
+    system: \l{QSharedMemory} and memory-mapped files using \l{QFile}. Memory
+    that is shared with other processes is often referred to as a "segment",
+    and although it may have been implemented as specific segments on
+    processors with segmented memory models in the past, this is not the case
+    in any modern operating system. Shared memory segments are simply regions
+    of memory that the operating system will ensure are available to all
+    processes participating.
+
+    \note The address at which the segment is located in memory will almost
+    always be different for each process that is participating in the sharing.
+    Therefore, applications must take care to share only position-independent
+    data, such as primitive C++ types or arrays of such types.
+
+    \section1 Sharing memory using QSharedMemory
+
+    QSharedMemory provides a simple API to create a shared memory segment of a
+    given size or attach to one that was created by another process.
+    Additionally, it provides a pair of methods to \l{QSharedMemory::}{lock}
+    and \l{QSharedMemory::}{unlock} the whole segment, using an internal
+    \l{QSystemSemaphore}.
+
+    Shared memory segments and system semaphores are globally identified in the
+    system through a "key", which in Qt is represented by the \l{QNativeIpcKey}
+    class. Additionally, depending on the OS, Qt may support multiple different
+    backends for sharing memory; see the \l{Native IPC Keys} documentation for
+    more information and limitations.
+
+    QSharedMemory is designed to share memory only within the same privilege
+    level (that is, not with untrusted other processes, such as those started
+    by other users). For backends that support it, QSharedMemory will create
+    segments such that only processes with the same privilege level can attach.
+
+    \section1 Sharing memory via memory-mapped files
+
+    Most files can be mapped to memory using QFile::map() and, if the
+    \l{QFileDevice::MapPrivateOption}{MapPrivateOption} option is not specified,
+    any writes to the mapped segment will be observed by all other processes
+    that have mapped the same file. Exceptions to files that can be mapped to
+    memory include remote files found in network shares or those located in
+    certain filesystems. Even if the operating system does allow mapping remote
+    files to memory, I/O operations on the file will likely be cached and
+    delayed, thus making true memory sharing impossible.
+
+    This solution has the major advantages of being independent of any backend
+    API and of being simpler to interoperate with from non-Qt applications.
+    Since \l{QTemporaryFile} is a \l{QFile}, applications can use that class to
+    achieve clean-up semantics and to create unique shared memory segments too.
+
+    To achieve locking of the shared memory segment, applications will need to
+    deploy their own mechanisms. One way may be to use \l QLockFile. Another
+    and less costly solution is to use QBasicAtomicInteger or \c{std::atomic} in
+    a pre-determined offset in the segment itself. Higher-level locking
+    primitives may be available on some operating systems; for example, on
+    Linux, applications can set the "pshared" flag in the mutex attribute
+    passed to \c{pthread_mutex_create()} to indicate that the mutex resides in
+    a shared memory segment.
+
+    Be aware that the operating system will likely attempt to commit to
+    permanent storage any writes made to the shared memory. This may be desired
+    or it may be a performance penalty if the file itself was meant to be
+    temporary. In that case, applications should locate a RAM-backed
+    filesystem, such as \c{tmpfs} on Linux (see
+    QStorageInfo::fileSystemType()), or pass a flag to the native file-opening
+    function to inform the OS to avoid committing the contents to storage.
+
+    It is possible to use file-backed shared memory to communicate with
+    untrusted processes, in which case the application should exercise great
+    care. The files may be truncated/shrunk and cause applications accessing
+    memory beyond the file's size to crash.
+
+    \section2 Linux hints on memory-mapped files
+
+    On modern Linux systems, while the \c{/tmp} directory is often a \c{tmpfs}
+    mount point, that is not a requirement. However, the \c{/dev/shm} directory
+    is required to be a \c{tmpfs} and exists for the very purpose of sharing
+    memory. Do note that it is world-readable and writable (like \c{/tmp} and
+    \c{/var/tmp}), so applications must be careful of the contents revealed
+    there. Another alternative is to use the XDG Runtime Directory (see
+    QStandardPaths::writableLocation() and \l{QStandardPaths::RuntimeLocation}),
+    which on Linux systems using systemd is a user-specific \c{tmpfs}.
+
+    An even more secure solution is to create a "memfd" using \c{memfd_create(2)}
+    and use interprocess communication to pass the file descriptor, like
+    \l{QDBusUnixFileDescriptor} or by letting the child process of a \l{QProcess}
+    inherit it. "memfds" can also be sealed against being shrunk, so they are
+    safe to be used when communicating with processes with a different privilege
+    level.
+
+    \section2 FreeBSD hints on memory-mapped files
+
+    FreeBSD also has \c{memfd_create(2)} and can pass file descriptors to other
+    processes using the same techniques as Linux. It does not have temporary
+    filesystems mounted by default.
+
+    \section2 Windows hints on memory-mapped files
+
+    On Windows, the application can request the operating system avoid saving
+    the file's contents on permanent storage. This request is performed by
+    passing the \c{FILE_ATTRIBUTE_TEMPORARY} flag in the
+    \c{dwFlagsAndAttributes} parameter to the \c{CreateFile} Win32 function,
+    the \c{_O_SHORT_LIVED} flag to \c{_open()} low-level function, or by
+    including the modifier "T" to the
+    \c{fopen()} C runtime function.
+
+    There's also a flag to inform the operating system to delete the file when
+    the last handle to it is closed (\c{FILE_FLAG_DELETE_ON_CLOSE},
+    \c{_O_TEMPORARY}, and the "D" modifier), but do note that all processes
+    attempting to open the file must agree on using this flag or not using it. A
+    mismatch will likely cause a sharing violation and failure to open the file.
+*/
+
+/*!
+    \page native-ipc-keys.html
+    \title Native IPC Keys
+    \keyword ipc
+    \keyword shared memory
+    \keyword system semaphore
+
+    \brief An overview of keys for QSharedMemory and QSystemSemaphore
+
+    The \l QSharedMemory and \l QSystemSemaphore classes identify their
+    resource using a system-wide identifier known as a "key". The low-level key
+    value as well as the key type are encapsulated in Qt using the \l
+    QNativeIpcKey class. That class also provides the proper means of
+    exchanging the key with other processes, by way of
+    QNativeIpcKey::toString() and QNativeIpcKey::fromString().
+
+    Qt currently supports three distinct backends for those two classes, which
+    match the values available in the \l{QNativeIpcKey::Type} enumeration.
+    \list
+      \li POSIX Realtime extensions (IEEE 1003.1b, POSIX.1b)
+      \li X/Open System Interfaces (XSI) or System V (SVr4), though also now part of POSIX
+      \li Windows primitives
+    \endlist
+
+    As the name indicates, the Windows primitives are only available on the
+    Windows operating system, where they are the default backend. The other two
+    are usually both available on Unix operating systems. The following table
+    provides an overview of typical availability since Qt 6.6:
+
+    \table
+      \header   \li Operating system    \li POSIX   \li System V    \li Windows
+      \row      \li Android             \li         \li             \li
+      \row      \li INTEGRITY           \li         \li             \li
+      \row      \li QNX                 \li Yes     \li             \li
+      \row      \li \macos              \li Yes     \li Usually (1) \li
+      \row      \li Other Apple OSes    \li Yes     \li             \li
+      \row      \li Other Unix systems  \li Yes     \li Yes         \li
+      \row      \li Windows             \li Rarely (2) \li          \li Yes
+    \endtable
+
+    \note 1 Sandboxed \macos applications, which include all applications
+    distributed via the Apple App Store, may not use System V objects.
+
+    \note 2 Some GCC-compatible C runtimes on Windows provide POSIX-compatible
+    shared memory support, but this is rare. It is always absent with the
+    Microsoft compiler.
+
+    To determine whether a given key type is supported, applications should
+    call QSharedMemory::isKeyTypeSupported() and
+    QSystemSemaphore::isKeyTypeSupported().
+
+    QNativeIpcKey also provides support for compatibility with Qt applications
+    prior to its introduction. The following sections detail the limitations of
+    the backends, the contents of the string keys themselves, and
+    compatibility.
+
+    \section1 Cross-platform safe key format
+
+    QNativeIpcKey::setNativeKey() and QNativeIpcKey::nativeKey() handle the
+    low-level native key, which may be used with the native APIs and shared
+    with other, non-Qt processes (see below for the API). This format is not
+    usually cross-platform, so both QSharedMemory and QSystemSemaphore provide
+    a function to translate a cross-platform identifier string to the native
+    key: QSharedMemory::platformSafeKey() and
+    QSystemSemaphore::platformSafeKey().
+
+    The length of the cross-platform key on most platforms is the same as that
+    of a file name, but is severely limited on Apple platforms to only 30
+    usable bytes (be mindful of UTF-8 encoding if using characters outside the
+    US-ASCII range). The format of the key is also similar to that of a file
+    path component, meaning it should not contain any characters not allowed in
+    file names, in particular those that separate path components (slash and
+    backslash), with the exception of sandboxed applications on Apple operating
+    systems. The following are good examples of cross-platform keys: "myapp",
+    "org.example.myapp", "org.example.myapp-12345".
+
+    \b{Apple sandbox limitations:} if the application is running inside of a
+    sandbox in an Apple operating system, the key must be in a very specific
+    format: \c {<application group identifier>/<custom identifier>}. Sandboxing
+    is implied for all applications distributed through the Apple App Store.
+    See Apple's documentation
+    \l{https://developer.apple.com/library/archive/documentation/Security/Conceptual/AppSandboxDesignGuide/AppSandboxInDepth/AppSandboxInDepth.html#//apple_ref/doc/uid/TP40011183-CH3-SW24}
+    {here} and \l{https://developer.apple.com/documentation/bundleresources/entitlements/com_apple_security_application-groups}
+    {here} for more information, including how to obtain the application's group identifier.
+
+    \section1 Native key format
+
+    This section details the format of the native keys of the supported
+    backends.
+
+    \section3 POSIX Realtime
+    Native keys resemble file names and may contain any character that file
+    names do, except for a slash. POSIX requires the first character in the key
+    name to be a slash and leaves undetermined whether any additional slashes
+    are permitted. On most operating systems, the key length is the same as a
+    file name, but it is limited to 32 characters on Apple operating systems
+    (this includes the first slash and the terminating null, so only 30 usable
+    characters are possible).
+
+    The following are good examples of native POSIX keys: "/myapp",
+    "/org.example.myapp", "/org.example.myapp-12345".
+
+    QSharedMemory::platformSafeKey() and QSystemSemaphore::platformSafeKey()
+    simply prepend the slash. On Apple operating systems, they also truncate
+    the result to the available size.
+
+    \section3 Windows
+    Windows key types are NT
+    \l{https://learn.microsoft.com/en-us/windows/win32/sync/object-namespaces}{kernel
+    object names} and may be up to \c{MAX_PATH} (260) characters in length.
+    They look like relative paths (that is, they don't start with a backslash
+    or a drive letter), but unlike file names on Windows, they are
+    case-sensitive.
+
+    The following are good examples of native Windows keys: "myapp",
+    "org.example.myapp", "org.example.myapp-12345".
+
+    QSharedMemory::platformSafeKey() and QSystemSemaphore::platformSafeKey()
+    insert a prefix to disambiguate shared memory and system semaphores,
+    respectively.
+
+    \section3 X/Open System Interfaces (XSI) / System V
+    System V keys take the form of the name of a file in the system, and thus
+    have the exact same limitations as file paths do. Both QSharedMemory and
+    QSystemSemaphore will create this file if it does not exist when creating
+    the object. If auto-removal is disabled, it may also be shared between
+    QSharedMemory and QSystemSemaphore without conflict and can be any extant
+    file (for example, it can be the process executable itself, see
+    QCoreApplication::applicationFilePath()). The path should be an absolute
+    one to avoid mistakes due to different current directories.
+
+    QSharedMemory::platformSafeKey() and QSystemSemaphore::platformSafeKey()
+    always return an absolute path. If the input was already absolute, they
+    will return their input unchanged. Otherwise, they will prepend a suitable
+    path where the application usually has permission to create files in.
+
+    \section1 Ownership
+
+    Shared memory and system semaphore objects need to be created before use,
+    which is accomplished with QSharedMemory::create() or by passing
+    QSystemSemaphore::Create to the constructor, respectively.
+
+    On Unix systems, the Qt classes that created the object will be responsible
+    for cleaning up the object in question. Therefore, if the application with
+    that C++ object exits uncleanly (a crash, qFatal(), etc.), the object may
+    be left behind. If that happens, applications may fail to create the
+    object again and should instead attach to an existing one. For example, for
+    QSharedMemory:
+
+    \code
+      if (!shm.create(4096) && shm.error() == QSharedMemory::AlreadyExists)
+          shm.attach();
+    \endcode
+
+    Re-attaching to a QSystemSemaphore is probably unwise, as the token counter
+    in it is probably in an unknown state and therefore may lead to deadlocks.
+
+    \section3 POSIX Realtime
+    POSIX Realtime object ownership is patterned after files, in the sense that
+    they exist independent of any process using them or not. Qt is unable to
+    determine if the object is still in use, so auto-removal will remove it
+    even then, which will make attaching to the same object impossible but
+    otherwise not affecting existing attachments.
+
+    Prior to Qt 6.6, Qt never cleaned up POSIX Realtime objects, except on QNX.
+
+    \section3 X/Open System Interfaces (XSI) / System V
+    There are two resources managed by the Qt classes: the file the key refers
+    to and the object itself. QSharedMemory manages the object cooperatively:
+    the last attachment is responsible for removing the object itself and then
+    removing the key file. QSystemSemaphore will remove the object if and only
+    if it was passed QSystemSemaphore::Create; additionally, if it created the
+    key file, it will remove that too.
+
+    Since Qt 6.6, it is possible to ask either class not to clean up.
+
+    \section3 Windows
+    The operating system owns the object and will clean up after the last
+    handle to the object is closed.
+
+    \section1 Interoperability with old Qt applications
+
+    The QNativeIpcKey class was introduced in Qt 6.6. Prior to this version,
+    QSharedMemory and QSystemSemaphore backends were determined at the time of
+    Qt's own build. For Windows systems, it was always the Windows backend. For
+    Unix systems, it defaulted to the System V backend if the configuration
+    script determined it was available. If it was not available, it fell back
+    to the POSIX one (since Qt 4.8). The POSIX backend could be explicitly
+    selected using the \c{-feature-ipc_posix} option to the Qt configure
+    script; if it was enabled, the \c{QT_POSIX_IPC} macro would be defined.
+
+    Qt 6.6 retains the configure script option but it no longer controls the
+    availability of the backends. Instead, it changes what
+    QNativeIpcKey::legacyDefaultTypeForOs() will return. Applications that need
+    to retain compatibility must use this key type exclusively to guarantee
+    interoperability.
+
+    The API in both QSharedMemory and QSystemSemaphore had the concept of a
+    cross-platform key, which is now deprecated in favor of using
+    QSharedMemory::legacyNativeKey() and QSystemSemaphore::legacyNativeKey().
+    Those two functions produce the same native key as the deprecated functions
+    did in prior versions. If the old code was for example:
+
+    \code
+        QSharedMemory shm("org.example.myapplication");
+        QSystemSemaphore sem("org.example.myapplication");
+    \endcode
+
+    It can be updated to be:
+    \code
+        QSharedMemory shm(QSharedMemory::legacyNativeKey("org.example.myapplication"));
+        QSystemSemaphore sem(QSystemSemaphore::legacyNativeKey("org.example.myapplication"));
+    \endcode
+
+    If the two applications exchanged native keys, there is no need to update
+    code such as:
+
+    \code
+        QSharedMemory shm;
+        shm.setNativeKey(key);
+    \endcode
+
+    Though if the older application did accept a native key, the new one may
+    opt to use \c{platformSafeKey()} with a second argument of
+    QNativeIpcKey::legacyDefaultTypeForOs().
+
+    \section3 X/Open System Interfaces (XSI) / System V
+    Never use existing files for QSharedMemory keys, as the old Qt application
+    may attempt to remove it. Instead, let QSharedMemory create it.
+
+    \section1 Interoperability with non-Qt applications
+
+    Interoperability with non-Qt applications is possible, with some limitations:
+    \list
+      \li Creation of shared memory segments must not race
+      \li QSharedMemory support for locking the segment is unavailable
+    \endlist
+
+    Communication with non-Qt applications must always be through the native
+    key.
+
+    QSharedMemory always maps the entire segment to memory. The non-Qt
+    application may choose to only map a subset of it to memory, with no ill
+    effects.
+
+    \section3 POSIX Realtime
+    POSIX shared memory can be opened using
+    \l{https://pubs.opengroup.org/onlinepubs/9699919799/functions/shm_open.html}{shm_open()}
+    and POSIX system semaphores can be opened using
+    \l{https://pubs.opengroup.org/onlinepubs/9699919799/functions/sem_open.html}{sem_open()}.
+
+    Both of those functions take a \c name parameter that is the result of
+    QNativeIpcKey::nativeKey(), encoded for file names using
+    QFile::encodeName() / QFile::decodeName().
+
+    \section3 Windows
+    Windows shared memory objects can be opened using
+    \l{https://learn.microsoft.com/en-us/windows/win32/api/memoryapi/nf-memoryapi-createfilemappingw}{CreateFileMappingW}
+    and Windows system semaphore objects can be opened using
+    \l{https://learn.microsoft.com/en-us/windows/win32/api/synchapi/nf-synchapi-createsemaphorew}{CreateSemaphoreW}.
+    Despite the name of both functions starting with "Create", they are able
+    to attach to existing objects.
+
+    The \c lpName parameter to those functions is the result of
+    QNativeIpcKey::nativeKey(), without transformation.
+
+    If the foreign application uses the non-Unicode version of those functions
+    (ending in "A"), the name can be converted to and from 8-bit using QString.
+
+    \section3 X/Open System Interfaces (XSI) / System V
+    System V shared memory can be obtained using
+    \l{https://pubs.opengroup.org/onlinepubs/9699919799/functions/shmget.html}{shmget()}
+    and System V system semaphores can be obtained using
+    \l{https://pubs.opengroup.org/onlinepubs/9699919799/functions/semget.html}{semget()}.
+
+    The \c{key} parameter to either of those functions is the result of the
+    \l{https://pubs.opengroup.org/onlinepubs/9699919799/functions/ftok.html}{ftok()}
+    function when passed the file name obtained from QNativeIpcKey::nativeKey()
+    with an \c id of 81 or 0x51 (the ASCII capital letter 'Q').
+
+    System V semaphore objects may contain multiple semaphores, but
+    QSystemSemaphore only uses the first one (number 0 for \c{sem_num}).
+
+    Both QSharedMemory and QSystemSemaphore default to removing the object
+    using the \c{IPC_RMID} operation to \c{shmctl()} and \c{semctl()}
+    respectively if they are the last attachment.
+*/
diff --git a/src/corelib/doc/src/json.qdoc b/src/corelib/doc/src/json.qdoc
index 3097075e..27959d47 100644
--- a/src/corelib/doc/src/json.qdoc
+++ b/src/corelib/doc/src/json.qdoc
@@ -6,7 +6,7 @@
     \title JSON Support in Qt
     \ingroup qt-basic-concepts
     \brief An overview of JSON support in Qt.
-
+    \ingroup explanations-dataprocessingandio
     \ingroup frameworks-technologies
 
     \keyword JSON
diff --git a/src/corelib/doc/src/objectmodel/metaobjects.qdoc b/src/corelib/doc/src/objectmodel/metaobjects.qdoc
index 62226ca4..3d768544 100644
--- a/src/corelib/doc/src/objectmodel/metaobjects.qdoc
+++ b/src/corelib/doc/src/objectmodel/metaobjects.qdoc
@@ -5,7 +5,7 @@
     \page metaobjects.html
     \title The Meta-Object System
     \brief An overview of Qt's meta-object system and introspection capabilities.
-
+    \ingroup explanations-basics
     \ingroup qt-basic-concepts
     \keyword meta-object
     \keyword Meta-Object System
diff --git a/src/corelib/doc/src/objectmodel/properties.qdoc b/src/corelib/doc/src/objectmodel/properties.qdoc
index eef2df70..93624574 100644
--- a/src/corelib/doc/src/objectmodel/properties.qdoc
+++ b/src/corelib/doc/src/objectmodel/properties.qdoc
@@ -5,7 +5,7 @@
     \page properties.html
     \title The Property System
     \brief An overview of Qt's property system.
-
+    \ingroup explanations-basics
     \ingroup qt-basic-concepts
     \keyword Qt's Property System
 
diff --git a/src/corelib/doc/src/objectmodel/signalsandslots.qdoc b/src/corelib/doc/src/objectmodel/signalsandslots.qdoc
index 836fa07a..f0eeb200 100644
--- a/src/corelib/doc/src/objectmodel/signalsandslots.qdoc
+++ b/src/corelib/doc/src/objectmodel/signalsandslots.qdoc
@@ -8,7 +8,7 @@
     \ingroup qt-basic-concepts
     \brief An overview of Qt's signals and slots inter-object
     communication mechanism.
-
+    \ingroup explanations-basics
     Signals and slots are used for communication between objects. The
     signals and slots mechanism is a central feature of Qt and
     probably the part that differs most from the features provided by
diff --git a/src/corelib/doc/src/qtcore-index.qdoc b/src/corelib/doc/src/qtcore-index.qdoc
index 520dd0b7..38452e1b 100644
--- a/src/corelib/doc/src/qtcore-index.qdoc
+++ b/src/corelib/doc/src/qtcore-index.qdoc
@@ -76,6 +76,7 @@
     \li \l{The Animation Framework}
     \li \l{JSON Support in Qt}
     \li \l{CBOR Support in Qt}
+    \li \l{Inter-Process Communication}
     \li \l{How to Create Qt Plugins}
     \li \l{The Event System}
     \li \l{Application Permissions}
diff --git a/src/corelib/doc/src/resource-system.qdoc b/src/corelib/doc/src/resource-system.qdoc
index 27993a4d..0ee706ed 100644
--- a/src/corelib/doc/src/resource-system.qdoc
+++ b/src/corelib/doc/src/resource-system.qdoc
@@ -160,6 +160,25 @@
     The file is from the application then only accessible as \c :/cut-img.png
     or \c{qrc:/cut-img.png}.
 
+    \section2 Discarding the file contents
+
+    Sometimes you want to add a file node to the resource file system but
+    don't actually want to add the file contents. \c .qrc files allow this
+    by setting the \c empty attribute to \c{true}.
+
+    \snippet code/doc_src_resources.qdoc 4
+
+    The resulting file is then still accessible from the application, but
+    its contents are empty.
+
+    This is useful to strip QML source code from an application binary.
+
+    \note If you omit the QML source code from the binary, the QML engine has to
+    rely on the compilation units created by \l{qmlcachegen} or \l{qmlsc}.
+    Those are tied to the specific version of Qt they were built with. If you
+    change the version of Qt your application uses, they can't be loaded
+    anymore.
+
     \section2 Language Selectors
 
     Some resources need to change based on the user's locale, such as
diff --git a/src/corelib/global/q20chrono.h b/src/corelib/global/q20chrono.h
new file mode 100644
index 00000000..b296b4e9
--- /dev/null
+++ b/src/corelib/global/q20chrono.h
@@ -0,0 +1,62 @@
+// Copyright (C) 2023 Ahmad Samir <a.samirh78@gmail.com>
+// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
+
+#ifndef Q20CHRONO_H
+#define Q20CHRONO_H
+
+#include <QtCore/qtconfigmacros.h>
+
+#include <chrono>
+
+//
+//  W A R N I N G
+//  -------------
+//
+// This file is not part of the Qt API. Types and functions defined in this
+// file can reliably be replaced by their std counterparts, once available.
+// You may use these definitions in your own code, but be aware that we
+// will remove them once Qt depends on the C++ version that supports
+// them in namespace std. There will be NO deprecation warning, the
+// definitions will JUST go away.
+//
+// If you can't agree to these terms, don't use these definitions!
+//
+// We mean it.
+//
+
+QT_BEGIN_NAMESPACE
+
+namespace q20 {
+namespace chrono {
+
+#if defined(__GLIBCXX__)
+// https://gcc.gnu.org/git/?p=gcc.git;a=blob;f=libstdc%2B%2B-v3/include/bits/chrono.h
+using IntRep = int64_t;
+#else
+// https://github.com/llvm/llvm-project/blob/main/libcxx/include/__chrono/duration.h
+// https://github.com/microsoft/STL/blob/main/stl/inc/__msvc_chrono.hpp
+using IntRep = int;
+#endif
+
+#if __cpp_lib_chrono >= 201907L
+using std::chrono::days;
+using std::chrono::weeks;
+using std::chrono::years;
+using std::chrono::months;
+
+static_assert(std::is_same_v<days::rep, IntRep>);
+static_assert(std::is_same_v<weeks::rep, IntRep>);
+static_assert(std::is_same_v<years::rep, IntRep>);
+static_assert(std::is_same_v<months::rep, IntRep>);
+#else // __cpp_lib_chrono >= 201907L
+using days = std::chrono::duration<IntRep, std::ratio<86400>>;
+using weeks = std::chrono::duration<IntRep, std::ratio_multiply<std::ratio<7>, days::period>>;
+using years = std::chrono::duration<IntRep, std::ratio_multiply<std::ratio<146097, 400>, days::period>>;
+using months = std::chrono::duration<IntRep, std::ratio_divide<years::period, std::ratio<12>>>;
+#endif // __cpp_lib_chrono >= 201907L
+} // namespace chrono
+} // namespace q20
+
+QT_END_NAMESPACE
+
+#endif /* Q20CHRONO_H */
diff --git a/src/corelib/global/q20iterator.h b/src/corelib/global/q20iterator.h
index 23b6406b..9ed4d699 100644
--- a/src/corelib/global/q20iterator.h
+++ b/src/corelib/global/q20iterator.h
@@ -39,6 +39,16 @@ namespace q20 {
 #endif
 } // namespace q20
 
+// like q20::iter_reference_t
+namespace q20 {
+#ifdef __cpp_lib_ranges
+    using std::iter_reference_t;
+#else
+    template <typename Dereferencable> // unconstrained (constraint requires concepts)
+    using iter_reference_t = decltype(*std::declval<Dereferencable&>());
+#endif // __cpp_lib_ranges
+} // namespace q20
+
 QT_END_NAMESPACE
 
 #endif /* Q20ITERATOR_H */
diff --git a/src/corelib/global/q20memory.h b/src/corelib/global/q20memory.h
index bb337a9f..008f4dde 100644
--- a/src/corelib/global/q20memory.h
+++ b/src/corelib/global/q20memory.h
@@ -1,4 +1,5 @@
 // Copyright (C) 2023 The Qt Company Ltd.
+// Copyright (C) 2020 Klarälvdalens Datakonsult AB, a KDAB Group company, info@kdab.com, author Marc Mutz <marc.mutz@kdab.com>
 // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
 
 #ifndef Q20MEMORY_H
@@ -7,9 +8,9 @@
 #include <QtCore/qtconfigmacros.h>
 
 #include <memory>
-#include <utility>
 
 #include <type_traits>
+#include <utility>
 
 //
 //  W A R N I N G
@@ -45,6 +46,48 @@ T *construct_at(T *ptr, Args && ... args)
 #endif // __cpp_lib_constexpr_dynamic_alloc
 } // namespace q20
 
+
+namespace q20 {
+// like std::to_address
+#ifdef __cpp_lib_to_address
+using std::to_address;
+#else
+// http://eel.is/c++draft/pointer.conversion
+template <typename T>
+constexpr T *to_address(T *p) noexcept {
+    // http://eel.is/c++draft/pointer.conversion#1:
+    //    Mandates: T is not a function type.
+    static_assert(!std::is_function_v<T>, "to_address must not be used on function types");
+    return p;
+}
+
+template <typename Ptr, typename std::enable_if_t<!std::is_pointer_v<Ptr>, bool> = true>
+constexpr auto to_address(const Ptr &ptr) noexcept; // fwd declared
+
+namespace detail {
+    // http://eel.is/c++draft/pointer.conversion#3
+    template <typename Ptr, typename = void>
+    struct to_address_helper {
+        static auto get(const Ptr &ptr) noexcept
+        { return q20::to_address(ptr.operator->()); }
+    };
+    template <typename Ptr>
+    struct to_address_helper<Ptr, std::void_t<
+            decltype(std::pointer_traits<Ptr>::to_address(std::declval<const Ptr&>()))
+        >>
+    {
+        static auto get(const Ptr &ptr) noexcept
+        { return std::pointer_traits<Ptr>::to_address(ptr); }
+    };
+} // namespace detail
+
+template <typename Ptr, typename std::enable_if_t<!std::is_pointer_v<Ptr>, bool>>
+constexpr auto to_address(const Ptr &ptr) noexcept
+{ return detail::to_address_helper<Ptr>::get(ptr); }
+
+#endif // __cpp_lib_to_address
+} // namespace q20
+
 QT_END_NAMESPACE
 
 #endif /* Q20MEMORY_H */
diff --git a/src/corelib/global/q20type_traits.h b/src/corelib/global/q20type_traits.h
index 2e812ed3..80ac1fa4 100644
--- a/src/corelib/global/q20type_traits.h
+++ b/src/corelib/global/q20type_traits.h
@@ -38,6 +38,19 @@ using remove_cvref_t = std::remove_cv_t<std::remove_reference_t<T>>;
 #endif // __cpp_lib_remove_cvref
 }
 
+namespace q20 {
+// like std::type_identity(_t)
+#ifdef __cpp_lib_type_identity
+using std::type_identity;
+using std::type_identity_t;
+#else
+template <typename T>
+struct type_identity { using type = T; };
+template <typename T>
+using type_identity_t = typename type_identity<T>::type;
+#endif // __cpp_lib_type_identity
+}
+
 QT_END_NAMESPACE
 
 #endif /* Q20TYPE_TRAITS_H */
diff --git a/src/corelib/global/q23utility.cpp b/src/corelib/global/q23utility.cpp
new file mode 100644
index 00000000..9c5365c5
--- /dev/null
+++ b/src/corelib/global/q23utility.cpp
@@ -0,0 +1,25 @@
+// Copyright (C) 2023 The Qt Company Ltd.
+// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
+
+#include <QtCore/q23utility.h>
+
+QT_BEGIN_NAMESPACE
+
+#define CHECK2(cvref_in, cvref_out) \
+    static_assert(std::is_same_v< \
+            decltype(q23::forward_like<int cvref_in >(std::declval<long&>())), \
+            long cvref_out \
+        >, "oops: cvref '" #cvref_in "' doesn't work") \
+    /* end */
+#define CHECK(cvref) CHECK2(cvref, cvref)
+CHECK2(/**/, &&);
+CHECK(&);
+CHECK(&&);
+CHECK2(const, const &&);
+CHECK(const &);
+CHECK(const &&);
+// volatile is not supported
+#undef CHECK
+#undef CHECK2
+
+QT_END_NAMESPACE
diff --git a/src/corelib/global/q23utility.h b/src/corelib/global/q23utility.h
new file mode 100644
index 00000000..9ae5389b
--- /dev/null
+++ b/src/corelib/global/q23utility.h
@@ -0,0 +1,75 @@
+// Copyright (C) 2023 The Qt Company Ltd.
+// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
+#ifndef Q23UTILITY_H
+#define Q23UTILITY_H
+
+#include <QtCore/qtconfigmacros.h>
+
+#include <utility>
+
+//
+//  W A R N I N G
+//  -------------
+//
+// This file is not part of the Qt API. Types and functions defined in this
+// file can reliably be replaced by their std counterparts, once available.
+// You may use these definitions in your own code, but be aware that we
+// will remove them once Qt depends on the C++ version that supports
+// them in namespace std. There will be NO deprecation warning, the
+// definitions will JUST go away.
+//
+// If you can't agree to these terms, don't use these definitions!
+//
+// We mean it.
+//
+
+QT_BEGIN_NAMESPACE
+
+namespace q23 {
+// like std::forward_like
+#ifdef __cpp_lib_forward_like
+using std::forward_like;
+#else
+
+namespace _detail {
+
+// [forward]/6.1 COPY_CONST
+template <typename A, typename B>
+using copy_const_t = std::conditional_t<
+        std::is_const_v<A>, const B,
+        /* else */          B
+    >;
+
+// [forward]/6.2 OVERRIDE_REF
+template <typename A, typename B>
+using override_ref_t = std::conditional_t<
+        std::is_rvalue_reference_v<A>, std::remove_reference_t<B>&&,
+        /* else */                     B&
+    >;
+
+// [forward]/6.3 "V"
+template <typename T, typename U>
+using forward_like_ret_t = override_ref_t<
+        T&&,
+        copy_const_t<
+            std::remove_reference_t<T>,
+            std::remove_reference_t<U>
+        >
+    >;
+
+} // namespace detail
+
+// http://eel.is/c++draft/forward#lib:forward_like
+template <class T, class U>
+[[nodiscard]] constexpr auto forward_like(U &&x) noexcept
+    -> _detail::forward_like_ret_t<T, U>
+{
+    using V = _detail::forward_like_ret_t<T, U>;
+    return static_cast<V>(x);
+}
+#endif // __cpp_lib_forward_like
+} // namespace q23
+
+QT_END_NAMESPACE
+
+#endif /* Q23UTILITY_H */
diff --git a/src/corelib/global/qassert.cpp b/src/corelib/global/qassert.cpp
index 4165429d..462f1412 100644
--- a/src/corelib/global/qassert.cpp
+++ b/src/corelib/global/qassert.cpp
@@ -139,29 +139,20 @@ void qBadAlloc()
 
 /*!
     \macro void Q_ASSUME(bool expr)
+    \deprecated
     \relates <QtAssert>
     \since 5.0
 
-    Causes the compiler to assume that \a expr is \c true. This macro is useful
-    for improving code generation, by providing the compiler with hints about
-    conditions that it would not otherwise know about. However, there is no
-    guarantee that the compiler will actually use those hints.
+    Causes the compiler to assume that \a expr is \c true.
 
-    This macro could be considered a "lighter" version of \l{Q_ASSERT()}. While
-    Q_ASSERT will abort the program's execution if the condition is \c false,
-    Q_ASSUME will tell the compiler not to generate code for those conditions.
-    Therefore, it is important that the assumptions always hold, otherwise
-    undefined behavior may occur.
+    This macro is known to produce worse code than when no assumption was
+    inserted in the code, with some compiler versions. The arguments passed to
+    it are always evaluated, even in release mode, with some compilers and not
+    others, so application code needs to be aware of those possible differences
+    in behavior.
 
-    If \a expr is a constantly \c false condition, Q_ASSUME will tell the compiler
-    that the current code execution cannot be reached. That is, Q_ASSUME(false)
-    is equivalent to Q_UNREACHABLE().
-
-    In debug builds the condition is enforced by an assert to facilitate debugging.
-
-    \note Q_LIKELY() tells the compiler that the expression is likely, but not
-    the only possibility. Q_ASSUME tells the compiler that it is the only
-    possibility.
+    Do not use it in new code. It is retained as-is for compatibility with old
+    code and will likely be removed in the next major version Qt.
 
     \sa Q_ASSERT(), Q_UNREACHABLE(), Q_LIKELY()
 */
@@ -199,7 +190,7 @@ void qBadAlloc()
     compilers that need them, without causing warnings for compilers that
     complain about its presence.
 
-    \sa Q_ASSERT(), Q_ASSUME(), qFatal(), Q_UNREACHABLE_RETURN()
+    \sa Q_ASSERT(), qFatal(), Q_UNREACHABLE_RETURN()
 */
 
 /*!
diff --git a/src/corelib/global/qassert.h b/src/corelib/global/qassert.h
index 28c6b6c8..862a707e 100644
--- a/src/corelib/global/qassert.h
+++ b/src/corelib/global/qassert.h
@@ -7,6 +7,7 @@
 #include <QtCore/qcompilerdetection.h>
 #include <QtCore/qtconfigmacros.h>
 #include <QtCore/qtcoreexports.h>
+#include <QtCore/qtnoop.h>
 
 #if 0
 #pragma qt_class(QtAssert)
@@ -17,7 +18,7 @@ QT_BEGIN_NAMESPACE
 
 #if defined(__cplusplus)
 
-#ifndef Q_CC_MSVC
+#if !defined(Q_CC_MSVC_ONLY)
 Q_NORETURN
 #endif
 Q_DECL_COLD_FUNCTION
@@ -31,7 +32,7 @@ Q_CORE_EXPORT void qt_assert(const char *assertion, const char *file, int line)
 #  endif
 #endif
 
-#ifndef Q_CC_MSVC
+#if !defined(Q_CC_MSVC_ONLY)
 Q_NORETURN
 #endif
 Q_DECL_COLD_FUNCTION
diff --git a/src/corelib/global/qcompare_impl.h b/src/corelib/global/qcompare_impl.h
index 2556f4af..c52417fc 100644
--- a/src/corelib/global/qcompare_impl.h
+++ b/src/corelib/global/qcompare_impl.h
@@ -1,15 +1,16 @@
 // Copyright (C) 2020 Klarälvdalens Datakonsult AB, a KDAB Group company, info@kdab.com, author Giuseppe D'Angelo <giuseppe.dangelo@kdab.com>
 // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
 
+#ifndef QCOMPARE_IMPL_H
+#define QCOMPARE_IMPL_H
+
 #if 0
 #pragma qt_sync_skip_header_check
 #pragma qt_sync_stop_processing
 #endif
 
-#ifndef QCOMPARE_IMPL_H
-#define QCOMPARE_IMPL_H
-
-#include <QtCore/qglobal.h>
+#include <QtCore/qtconfigmacros.h>
+#include <QtCore/qcompilerdetection.h>
 
 QT_BEGIN_NAMESPACE
 
diff --git a/src/corelib/global/qcompilerdetection.h b/src/corelib/global/qcompilerdetection.h
index 70fa7f6c..5525be28 100644
--- a/src/corelib/global/qcompilerdetection.h
+++ b/src/corelib/global/qcompilerdetection.h
@@ -2,9 +2,7 @@
 // Copyright (C) 2016 Intel Corporation.
 // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
 
-#ifndef QGLOBAL_H
-# include <QtCore/qglobal.h>
-#endif
+#include <QtCore/qsystemdetection.h>
 
 #if 0
 #pragma qt_class(QtCompilerDetection)
@@ -179,7 +177,7 @@
 #  ifdef Q_OS_WIN
 #    define Q_DECL_EXPORT     __declspec(dllexport)
 #    define Q_DECL_IMPORT     __declspec(dllimport)
-#  elif defined(QT_VISIBILITY_AVAILABLE)
+#  else
 #    define Q_DECL_EXPORT_OVERRIDABLE __attribute__((visibility("default"), weak))
 #    ifdef QT_USE_PROTECTED_VISIBILITY
 #      define Q_DECL_EXPORT     __attribute__((visibility("protected")))
@@ -513,8 +511,7 @@
  * For library features, we assume <version> is present (this header includes it).
  *
  * For a full listing of feature test macros, see
- *  https://isocpp.org/std/standing-documents/sd-6-sg10-feature-test-recommendations (by macro)
- *  https://en.cppreference.com/w/User:D41D8CD98F/feature_testing_macros       (by C++ version)
+ *  https://en.cppreference.com/w/cpp/feature_test
  *
  * C++ extensions:
  *  Q_COMPILER_RESTRICTED_VLA       variable-length arrays, prior to __cpp_runtime_arrays
@@ -548,7 +545,8 @@
 #  endif
 
 /* C++11 features, see http://clang.llvm.org/cxx_status.html */
-#  if __cplusplus >= 201103L || defined(__GXX_EXPERIMENTAL_CXX0X__)
+#  if (defined(__cplusplus) && __cplusplus >= 201103L) \
+      || defined(__GXX_EXPERIMENTAL_CXX0X__)
     /* Detect C++ features using __has_feature(), see http://clang.llvm.org/docs/LanguageExtensions.html#cxx11 */
 #    if __has_feature(cxx_alignas)
 #      define Q_COMPILER_ALIGNAS
@@ -646,10 +644,10 @@
 #    if Q_CC_CLANG >= 209 /* since clang 2.9 */
 #      define Q_COMPILER_EXTERN_TEMPLATES
 #    endif
-#  endif
+#  endif // (defined(__cplusplus) && __cplusplus >= 201103L) || defined(__GXX_EXPERIMENTAL_CXX0X__)
 
 /* C++1y features, deprecated macros. Do not update this list. */
-#  if __cplusplus > 201103L
+#  if defined(__cplusplus) && __cplusplus > 201103L
 //#    if __has_feature(cxx_binary_literals)
 //#      define Q_COMPILER_BINARY_LITERALS  // see above
 //#    endif
@@ -671,7 +669,7 @@
 #    if __has_feature(cxx_runtime_array)
 #      define Q_COMPILER_VLA
 #    endif
-#  endif
+#  endif // if defined(__cplusplus) && __cplusplus > 201103L
 
 #  if defined(__STDC_VERSION__)
 #    if __has_feature(c_static_assert)
@@ -895,7 +893,7 @@
 #   endif // !_HAS_CONSTEXPR
 #  endif // !__GLIBCXX__ && !_LIBCPP_VERSION
 # endif // Q_OS_QNX
-# if defined(Q_CC_CLANG) && defined(Q_OS_MAC)
+# if defined(Q_CC_CLANG) && defined(Q_OS_DARWIN)
 #  if defined(__GNUC_LIBSTD__) && ((__GNUC_LIBSTD__-0) * 100 + __GNUC_LIBSTD_MINOR__-0 <= 402)
 // Apple has not updated libstdc++ since 2007, which means it does not have
 // <initializer_list> or std::move. Let's disable these features
@@ -956,6 +954,13 @@
 #  define Q_REQUIRED_RESULT [[nodiscard]]
 #endif
 
+#if __has_cpp_attribute(nodiscard) >= 201907L /* used for both P1771 and P1301... */
+// [[nodiscard]] constructor (P1771)
+#  ifndef Q_NODISCARD_CTOR
+#    define Q_NODISCARD_CTOR [[nodiscard]]
+#  endif
+#endif
+
 #if __has_cpp_attribute(maybe_unused)
 #  undef Q_DECL_UNUSED
 #  define Q_DECL_UNUSED [[maybe_unused]]
@@ -1005,6 +1010,9 @@
 #ifndef Q_REQUIRED_RESULT
 #  define Q_REQUIRED_RESULT
 #endif
+#ifndef Q_NODISCARD_CTOR
+#  define Q_NODISCARD_CTOR
+#endif
 #ifndef Q_DECL_DEPRECATED
 #  define Q_DECL_DEPRECATED
 #endif
@@ -1368,6 +1376,20 @@ QT_WARNING_DISABLE_MSVC(4530) /* C++ exception handler used, but unwind semantic
 #  endif
 #endif
 
+#if defined(__cplusplus) && __cplusplus >= 202002L // P0846 doesn't have a feature macro :/
+#  define QT_COMPILER_HAS_P0846
+#endif
+
+#ifdef QT_COMPILER_HAS_P0846
+#   define QT_ENABLE_P0846_SEMANTICS_FOR(func)
+#else
+    class QT_CLASS_JUST_FOR_P0846_SIMULATION;
+#   define QT_ENABLE_P0846_SEMANTICS_FOR(func) \
+        template <typename T> \
+        void func (QT_CLASS_JUST_FOR_P0846_SIMULATION *); \
+        /* end */
+#endif // !P0846
+
 #endif // __cplusplus
 
 #endif // QCOMPILERDETECTION_H
diff --git a/src/corelib/global/qcompilerdetection.qdoc b/src/corelib/global/qcompilerdetection.qdoc
index 377323a5..5074d8f6 100644
--- a/src/corelib/global/qcompilerdetection.qdoc
+++ b/src/corelib/global/qcompilerdetection.qdoc
@@ -175,7 +175,7 @@
     \since 5.8
 
     Can be used in switch statements at the end of case block to tell the compiler
-    and other developers that that the lack of a break statement is intentional.
+    and other developers that the lack of a break statement is intentional.
 
     This is useful since a missing break statement is often a bug, and some
     compilers can be configured to emit warnings when one is not found.
@@ -197,7 +197,7 @@
 
     \snippet code/src_corelib_global_qglobal.cpp qlikely
 
-    \sa Q_UNLIKELY(), Q_ASSUME()
+    \sa Q_UNLIKELY()
 */
 
 /*!
@@ -392,3 +392,21 @@
 
     If this macro is used outside a function, the behavior is undefined.
 */
+
+/*!
+    \macro Q_NODISCARD_CTOR
+    \relates <QtCompilerDetection>
+    \since 6.6
+
+    \brief Expands to \c{[[nodiscard]]} on compilers that accept it on constructors.
+
+    Otherwise it expands to nothing.
+
+    Constructors marked as Q_NODISCARD_CTOR cause a compiler warning if a call
+    site doesn't use the resulting object.
+
+    This macro is exists solely to prevent warnings on compilers that don't
+    implement the feature. If your supported platforms all allow \c{[[nodiscard]]}
+    on constructors, we strongly recommend you use the C++ attribute directly instead
+    of this macro.
+*/
diff --git a/src/corelib/global/qconfig-bootstrapped.h b/src/corelib/global/qconfig-bootstrapped.h
index 78d622f5..ace4c51d 100644
--- a/src/corelib/global/qconfig-bootstrapped.h
+++ b/src/corelib/global/qconfig-bootstrapped.h
@@ -63,6 +63,7 @@
 #define QT_FEATURE_jalalicalendar -1
 #define QT_FEATURE_journald -1
 #define QT_FEATURE_futimens -1
+#undef QT_FEATURE_future
 #define QT_FEATURE_future -1
 #define QT_FEATURE_itemmodel -1
 #define QT_FEATURE_library -1
@@ -81,7 +82,6 @@
 # define QT_FEATURE_renameat2 -1
 #endif
 #define QT_FEATURE_shortcut -1
-#define QT_FEATURE_signaling_nan -1
 #define QT_FEATURE_slog2 -1
 #ifdef __GLIBC_PREREQ
 # define QT_FEATURE_statx (__GLIBC_PREREQ(2, 28) ? 1 : -1)
@@ -92,6 +92,7 @@
 #define QT_NO_SYSTEMLOCALE
 #define QT_FEATURE_temporaryfile 1
 #define QT_FEATURE_textdate 1
+#undef QT_FEATURE_thread
 #define QT_FEATURE_thread -1
 #define QT_FEATURE_timezone -1
 #define QT_FEATURE_topleveldomain -1
diff --git a/src/corelib/global/qcontainerinfo.h b/src/corelib/global/qcontainerinfo.h
index e2787707..14468510 100644
--- a/src/corelib/global/qcontainerinfo.h
+++ b/src/corelib/global/qcontainerinfo.h
@@ -50,6 +50,11 @@ inline constexpr bool has_size_v = false;
 template<typename C>
 inline constexpr bool has_size_v<C, std::void_t<decltype(C().size())>> = true;
 
+template<typename C, typename = void>
+inline constexpr bool has_reserve_v = false;
+template<typename C>
+inline constexpr bool has_reserve_v<C, std::void_t<decltype(C().reserve(0))>> = true;
+
 template<typename C, typename = void>
 inline constexpr bool has_clear_v = false;
 template<typename C>
diff --git a/src/corelib/global/qendian.h b/src/corelib/global/qendian.h
index 9cd0044c..60c4a7b1 100644
--- a/src/corelib/global/qendian.h
+++ b/src/corelib/global/qendian.h
@@ -105,6 +105,23 @@ inline constexpr T qbswap(T source)
     return T(qbswap_helper(typename QIntegerForSizeof<T>::Unsigned(source)));
 }
 
+#ifdef QT_SUPPORTS_INT128
+// extra definitions for q(u)int128, in case std::is_integral_v<~~> == false
+inline constexpr quint128 qbswap(quint128 source)
+{
+    quint128 result = {};
+    result = qbswap_helper(quint64(source));
+    result <<= 64;
+    result |= qbswap_helper(quint64(source >> 64));
+    return result;
+}
+
+inline constexpr quint128 qbswap(qint128 source)
+{
+    return qint128(qbswap(quint128(source)));
+}
+#endif
+
 // floating specializations
 template<typename Float>
 Float qbswapFloatHelper(Float source)
diff --git a/src/corelib/global/qexceptionhandling.h b/src/corelib/global/qexceptionhandling.h
index aca8de90..76c6185c 100644
--- a/src/corelib/global/qexceptionhandling.h
+++ b/src/corelib/global/qexceptionhandling.h
@@ -6,6 +6,7 @@
 
 #include <QtCore/qtconfigmacros.h>
 #include <QtCore/qcompilerdetection.h>
+#include <QtCore/qtcoreexports.h>
 
 #if 0
 #pragma qt_class(QtExceptionHandling)
diff --git a/src/corelib/global/qflags.h b/src/corelib/global/qflags.h
index 26a8e5c9..cc028e00 100644
--- a/src/corelib/global/qflags.h
+++ b/src/corelib/global/qflags.h
@@ -1,12 +1,12 @@
 // Copyright (C) 2016 The Qt Company Ltd.
 // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
 
-#include <QtCore/qglobal.h>
-#include <QtCore/qcompare_impl.h>
-
 #ifndef QFLAGS_H
 #define QFLAGS_H
 
+#include <QtCore/qcompare_impl.h>
+#include <QtCore/qtypeinfo.h>
+
 #include <initializer_list>
 
 QT_BEGIN_NAMESPACE
diff --git a/src/corelib/global/qfloat16.h b/src/corelib/global/qfloat16.h
index 06542c4b..15dab5e7 100644
--- a/src/corelib/global/qfloat16.h
+++ b/src/corelib/global/qfloat16.h
@@ -87,7 +87,7 @@ public:
     inline operator float() const noexcept;
 #endif
     template <typename T, typename = std::enable_if_t<std::is_arithmetic_v<T> && !std::is_same_v<T, NearestFloat>>>
-    explicit qfloat16(T value) noexcept : qfloat16(NearestFloat(value)) {}
+    constexpr explicit qfloat16(T value) noexcept : qfloat16(NearestFloat(value)) {}
 
     // Support for qIs{Inf,NaN,Finite}:
     bool isInf() const noexcept { return (b16 & 0x7fff) == 0x7c00; }
diff --git a/src/corelib/global/qglobal.h b/src/corelib/global/qglobal.h
index 3a9d40a0..1009057b 100644
--- a/src/corelib/global/qglobal.h
+++ b/src/corelib/global/qglobal.h
@@ -27,20 +27,21 @@
 
 #include <QtCore/qtpreprocessorsupport.h>
 
-#include <QtCore/qtnoop.h>
-
 #include <QtCore/qsystemdetection.h>
 #include <QtCore/qprocessordetection.h>
 #include <QtCore/qcompilerdetection.h>
 
-#include <QtCore/qassert.h>
-#include <QtCore/qtypes.h>
-#include <QtCore/qtclasshelpermacros.h>
-
+#ifndef __ASSEMBLER__
+#  include <QtCore/qassert.h>
+#  include <QtCore/qtnoop.h>
+#  include <QtCore/qtypes.h>
+#endif /* !__ASSEMBLER__ */
 #include <QtCore/qtversion.h>
 
 #if defined(__cplusplus)
 
+#include <QtCore/qtclasshelpermacros.h>
+
 // We need to keep QTypeInfo, QSysInfo, QFlags, qDebug & family in qglobal.h for compatibility with Qt 4.
 // Be careful when changing the order of these files.
 #include <QtCore/qtypeinfo.h>
diff --git a/src/corelib/global/qglobal_p.h b/src/corelib/global/qglobal_p.h
index d6e84acd..31f67510 100644
--- a/src/corelib/global/qglobal_p.h
+++ b/src/corelib/global/qglobal_p.h
@@ -52,21 +52,9 @@
 #endif
 
 #if defined(__cplusplus)
-#ifdef Q_CC_MINGW
-#  include <unistd.h> // Define _POSIX_THREAD_SAFE_FUNCTIONS to obtain localtime_r()
-#endif
-#include <time.h>
-
 QT_BEGIN_NAMESPACE
 
-// These behave as if they consult the environment, so need to share its locking:
-Q_CORE_EXPORT void qTzSet();
-Q_CORE_EXPORT time_t qMkTime(struct tm *when);
-
-#if !defined(Q_CC_MSVC)
-Q_NORETURN
-#endif
-Q_CORE_EXPORT void qAbort();
+Q_NORETURN Q_CORE_EXPORT void qAbort();
 
 QT_END_NAMESPACE
 
@@ -142,4 +130,3 @@ QT_END_NAMESPACE
 #endif // defined(__cplusplus)
 
 #endif // QGLOBAL_P_H
-
diff --git a/src/corelib/global/qglobalstatic.h b/src/corelib/global/qglobalstatic.h
index 1c615aef..7ed85ba4 100644
--- a/src/corelib/global/qglobalstatic.h
+++ b/src/corelib/global/qglobalstatic.h
@@ -1,13 +1,12 @@
 // Copyright (C) 2021 Intel Corporation.
 // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
 
-#include <QtCore/qglobal.h>
-
 #ifndef QGLOBALSTATIC_H
 #define QGLOBALSTATIC_H
 
 #include <QtCore/qassert.h>
 #include <QtCore/qatomic.h>
+#include <QtCore/qtclasshelpermacros.h>
 
 #include <atomic>           // for bootstrapped (no thread) builds
 #include <type_traits>
@@ -75,13 +74,13 @@ template <typename Holder> struct QGlobalStatic
     }
     Type *operator->()
     {
-        Q_ASSERT_X(!isDestroyed(), "Q_GLOBAL_STATIC",
+        Q_ASSERT_X(!isDestroyed(), Q_FUNC_INFO,
                    "The global static was used after being destroyed");
         return instance();
     }
     Type &operator*()
     {
-        Q_ASSERT_X(!isDestroyed(), "Q_GLOBAL_STATIC",
+        Q_ASSERT_X(!isDestroyed(), Q_FUNC_INFO,
                    "The global static was used after being destroyed");
         return *instance();
     }
diff --git a/src/corelib/global/qlibraryinfo.cpp b/src/corelib/global/qlibraryinfo.cpp
index 469e2b42..6dab173e 100644
--- a/src/corelib/global/qlibraryinfo.cpp
+++ b/src/corelib/global/qlibraryinfo.cpp
@@ -540,8 +540,8 @@ QString QLibraryInfoPrivate::path(QLibraryInfo::LibraryPath p, UsageMode usageMo
                 ret = v.toString();
             }
 
-            int startIndex = 0;
-            forever {
+            qsizetype startIndex = 0;
+            while (true) {
                 startIndex = ret.indexOf(u'$', startIndex);
                 if (startIndex < 0)
                     break;
@@ -551,7 +551,7 @@ QString QLibraryInfoPrivate::path(QLibraryInfo::LibraryPath p, UsageMode usageMo
                     startIndex++;
                     continue;
                 }
-                int endIndex = ret.indexOf(u')', startIndex + 2);
+                qsizetype endIndex = ret.indexOf(u')', startIndex + 2);
                 if (endIndex < 0)
                     break;
                 auto envVarName = QStringView{ret}.mid(startIndex + 2, endIndex - startIndex - 2);
diff --git a/src/corelib/global/qlogging.cpp b/src/corelib/global/qlogging.cpp
index 7e708c9c..a63149f0 100644
--- a/src/corelib/global/qlogging.cpp
+++ b/src/corelib/global/qlogging.cpp
@@ -163,10 +163,11 @@ Q_TRACE_POINT(qtcore, qt_message_print, int type, const char *category, const ch
     \snippet code/src_corelib_global_qglobal.cpp 4
 */
 
-#if !defined(Q_CC_MSVC)
+template <typename String>
+#if !defined(Q_CC_MSVC_ONLY)
 Q_NORETURN
 #endif
-static void qt_message_fatal(QtMsgType, const QMessageLogContext &context, const QString &message);
+static void qt_message_fatal(QtMsgType, const QMessageLogContext &context, String &&message);
 static void qt_message_print(QtMsgType, const QMessageLogContext &context, const QString &message);
 static void qt_message_print(const QString &message);
 
@@ -347,7 +348,7 @@ using namespace QtPrivate;
     \sa QMessageLogContext, qDebug(), qInfo(), qWarning(), qCritical(), qFatal()
 */
 
-#if defined(Q_CC_MSVC) && defined(QT_DEBUG) && defined(_DEBUG) && defined(_CRT_ERROR)
+#if defined(Q_CC_MSVC_ONLY) && defined(QT_DEBUG) && defined(_DEBUG) && defined(_CRT_ERROR)
 static inline void convert_to_wchar_t_elided(wchar_t *d, size_t space, const char *s) noexcept
 {
     size_t len = qstrlen(s);
@@ -368,11 +369,13 @@ static inline void convert_to_wchar_t_elided(wchar_t *d, size_t space, const cha
     \internal
 */
 Q_NEVER_INLINE
-static QString qt_message(QtMsgType msgType, const QMessageLogContext &context, const char *msg, va_list ap)
+static void qt_message(QtMsgType msgType, const QMessageLogContext &context, const char *msg, va_list ap)
 {
     QString buf = QString::vasprintf(msg, ap);
     qt_message_print(msgType, context, buf);
-    return buf;
+
+    if (isFatal(msgType))
+        qt_message_fatal(msgType, context, buf);
 }
 
 #undef qDebug
@@ -386,11 +389,8 @@ void QMessageLogger::debug(const char *msg, ...) const
 {
     va_list ap;
     va_start(ap, msg); // use variable arg list
-    const QString message = qt_message(QtDebugMsg, context, msg, ap);
+    qt_message(QtDebugMsg, context, msg, ap);
     va_end(ap);
-
-    if (isFatal(QtDebugMsg))
-        qt_message_fatal(QtDebugMsg, context, message);
 }
 
 
@@ -406,11 +406,8 @@ void QMessageLogger::info(const char *msg, ...) const
 {
     va_list ap;
     va_start(ap, msg); // use variable arg list
-    const QString message = qt_message(QtInfoMsg, context, msg, ap);
+    qt_message(QtInfoMsg, context, msg, ap);
     va_end(ap);
-
-    if (isFatal(QtInfoMsg))
-        qt_message_fatal(QtInfoMsg, context, message);
 }
 
 /*!
@@ -445,11 +442,8 @@ void QMessageLogger::debug(const QLoggingCategory &cat, const char *msg, ...) co
 
     va_list ap;
     va_start(ap, msg); // use variable arg list
-    const QString message = qt_message(QtDebugMsg, ctxt, msg, ap);
+    qt_message(QtDebugMsg, ctxt, msg, ap);
     va_end(ap);
-
-    if (isFatal(QtDebugMsg))
-        qt_message_fatal(QtDebugMsg, ctxt, message);
 }
 
 /*!
@@ -472,11 +466,8 @@ void QMessageLogger::debug(QMessageLogger::CategoryFunction catFunc,
 
     va_list ap;
     va_start(ap, msg); // use variable arg list
-    const QString message = qt_message(QtDebugMsg, ctxt, msg, ap);
+    qt_message(QtDebugMsg, ctxt, msg, ap);
     va_end(ap);
-
-    if (isFatal(QtDebugMsg))
-        qt_message_fatal(QtDebugMsg, ctxt, message);
 }
 
 #ifndef QT_NO_DEBUG_STREAM
@@ -556,11 +547,8 @@ void QMessageLogger::info(const QLoggingCategory &cat, const char *msg, ...) con
 
     va_list ap;
     va_start(ap, msg); // use variable arg list
-    const QString message = qt_message(QtInfoMsg, ctxt, msg, ap);
+    qt_message(QtInfoMsg, ctxt, msg, ap);
     va_end(ap);
-
-    if (isFatal(QtInfoMsg))
-        qt_message_fatal(QtInfoMsg, ctxt, message);
 }
 
 /*!
@@ -583,11 +571,8 @@ void QMessageLogger::info(QMessageLogger::CategoryFunction catFunc,
 
     va_list ap;
     va_start(ap, msg); // use variable arg list
-    const QString message = qt_message(QtInfoMsg, ctxt, msg, ap);
+    qt_message(QtInfoMsg, ctxt, msg, ap);
     va_end(ap);
-
-    if (isFatal(QtInfoMsg))
-        qt_message_fatal(QtInfoMsg, ctxt, message);
 }
 
 #ifndef QT_NO_DEBUG_STREAM
@@ -649,11 +634,8 @@ void QMessageLogger::warning(const char *msg, ...) const
 {
     va_list ap;
     va_start(ap, msg); // use variable arg list
-    const QString message = qt_message(QtWarningMsg, context, msg, ap);
+    qt_message(QtWarningMsg, context, msg, ap);
     va_end(ap);
-
-    if (isFatal(QtWarningMsg))
-        qt_message_fatal(QtWarningMsg, context, message);
 }
 
 /*!
@@ -674,11 +656,8 @@ void QMessageLogger::warning(const QLoggingCategory &cat, const char *msg, ...)
 
     va_list ap;
     va_start(ap, msg); // use variable arg list
-    const QString message = qt_message(QtWarningMsg, ctxt, msg, ap);
+    qt_message(QtWarningMsg, ctxt, msg, ap);
     va_end(ap);
-
-    if (isFatal(QtWarningMsg))
-        qt_message_fatal(QtWarningMsg, ctxt, message);
 }
 
 /*!
@@ -701,11 +680,8 @@ void QMessageLogger::warning(QMessageLogger::CategoryFunction catFunc,
 
     va_list ap;
     va_start(ap, msg); // use variable arg list
-    const QString message = qt_message(QtWarningMsg, ctxt, msg, ap);
+    qt_message(QtWarningMsg, ctxt, msg, ap);
     va_end(ap);
-
-    if (isFatal(QtWarningMsg))
-        qt_message_fatal(QtWarningMsg, ctxt, message);
 }
 
 #ifndef QT_NO_DEBUG_STREAM
@@ -765,11 +741,8 @@ void QMessageLogger::critical(const char *msg, ...) const
 {
     va_list ap;
     va_start(ap, msg); // use variable arg list
-    const QString message = qt_message(QtCriticalMsg, context, msg, ap);
+    qt_message(QtCriticalMsg, context, msg, ap);
     va_end(ap);
-
-    if (isFatal(QtCriticalMsg))
-        qt_message_fatal(QtCriticalMsg, context, message);
 }
 
 /*!
@@ -790,11 +763,8 @@ void QMessageLogger::critical(const QLoggingCategory &cat, const char *msg, ...)
 
     va_list ap;
     va_start(ap, msg); // use variable arg list
-    const QString message = qt_message(QtCriticalMsg, ctxt, msg, ap);
+    qt_message(QtCriticalMsg, ctxt, msg, ap);
     va_end(ap);
-
-    if (isFatal(QtCriticalMsg))
-        qt_message_fatal(QtCriticalMsg, ctxt, message);
 }
 
 /*!
@@ -817,11 +787,8 @@ void QMessageLogger::critical(QMessageLogger::CategoryFunction catFunc,
 
     va_list ap;
     va_start(ap, msg); // use variable arg list
-    const QString message = qt_message(QtCriticalMsg, ctxt, msg, ap);
+    qt_message(QtCriticalMsg, ctxt, msg, ap);
     va_end(ap);
-
-    if (isFatal(QtCriticalMsg))
-        qt_message_fatal(QtCriticalMsg, ctxt, message);
 }
 
 #ifndef QT_NO_DEBUG_STREAM
@@ -885,14 +852,14 @@ void QMessageLogger::fatal(const QLoggingCategory &cat, const char *msg, ...) co
     ctxt.copyContextFrom(context);
     ctxt.category = cat.categoryName();
 
-    QString message;
-
     va_list ap;
     va_start(ap, msg); // use variable arg list
-    QT_TERMINATE_ON_EXCEPTION(message = qt_message(QtFatalMsg, ctxt, msg, ap));
+    QT_TERMINATE_ON_EXCEPTION(qt_message(QtFatalMsg, ctxt, msg, ap));
     va_end(ap);
 
-    qt_message_fatal(QtCriticalMsg, ctxt, message);
+#ifndef Q_CC_MSVC_ONLY
+    Q_UNREACHABLE();
+#endif
 }
 
 /*!
@@ -911,14 +878,14 @@ void QMessageLogger::fatal(QMessageLogger::CategoryFunction catFunc,
     ctxt.copyContextFrom(context);
     ctxt.category = cat.categoryName();
 
-    QString message;
-
     va_list ap;
     va_start(ap, msg); // use variable arg list
-    QT_TERMINATE_ON_EXCEPTION(message = qt_message(QtFatalMsg, ctxt, msg, ap));
+    QT_TERMINATE_ON_EXCEPTION(qt_message(QtFatalMsg, ctxt, msg, ap));
     va_end(ap);
 
-    qt_message_fatal(QtFatalMsg, ctxt, message);
+#ifndef Q_CC_MSVC_ONLY
+    Q_UNREACHABLE();
+#endif
 }
 
 /*!
@@ -929,14 +896,14 @@ void QMessageLogger::fatal(QMessageLogger::CategoryFunction catFunc,
 */
 void QMessageLogger::fatal(const char *msg, ...) const noexcept
 {
-    QString message;
-
     va_list ap;
     va_start(ap, msg); // use variable arg list
-    QT_TERMINATE_ON_EXCEPTION(message = qt_message(QtFatalMsg, context, msg, ap));
+    QT_TERMINATE_ON_EXCEPTION(qt_message(QtFatalMsg, context, msg, ap));
     va_end(ap);
 
-    qt_message_fatal(QtFatalMsg, context, message);
+#ifndef Q_CC_MSVC_ONLY
+    Q_UNREACHABLE();
+#endif
 }
 
 #ifndef QT_NO_DEBUG_STREAM
@@ -1638,12 +1605,12 @@ QString qFormatLogMessage(QtMsgType type, const QMessageLogContext &context, con
             QString timeFormat = pattern->timeArgs.at(timeArgsIdx);
             timeArgsIdx++;
             if (timeFormat == "process"_L1) {
-                    quint64 ms = pattern->timer.elapsed();
-                    message.append(QString::asprintf("%6d.%03d", uint(ms / 1000), uint(ms % 1000)));
+                quint64 ms = pattern->timer.elapsed();
+                message.append(QString::asprintf("%6d.%03d", uint(ms / 1000), uint(ms % 1000)));
             } else if (timeFormat == "boot"_L1) {
                 // just print the milliseconds since the elapsed timer reference
                 // like the Linux kernel does
-                uint ms = QDeadlineTimer::current().deadline();
+                qint64 ms = QDeadlineTimer::current().deadline();
                 message.append(QString::asprintf("%6d.%03d", uint(ms / 1000), uint(ms % 1000)));
 #if QT_CONFIG(datestring)
             } else if (timeFormat.isEmpty()) {
@@ -2032,9 +1999,10 @@ static void qt_message_print(const QString &message)
     fflush(stderr);
 }
 
-static void qt_message_fatal(QtMsgType, const QMessageLogContext &context, const QString &message)
+template <typename String>
+static void qt_message_fatal(QtMsgType, const QMessageLogContext &context, String &&message)
 {
-#if defined(Q_CC_MSVC) && defined(QT_DEBUG) && defined(_DEBUG) && defined(_CRT_ERROR)
+#if defined(Q_CC_MSVC_ONLY) && defined(QT_DEBUG) && defined(_DEBUG) && defined(_CRT_ERROR)
     wchar_t contextFileL[256];
     // we probably should let the compiler do this for us, by declaring QMessageLogContext::file to
     // be const wchar_t * in the first place, but the #ifdefery above is very complex  and we
@@ -2053,13 +2021,15 @@ static void qt_message_fatal(QtMsgType, const QMessageLogContext &context, const
         _CrtDbgBreak();
 #else
     Q_UNUSED(context);
-    Q_UNUSED(message);
 #endif
 
+    if constexpr (std::is_class_v<String> && !std::is_const_v<String>)
+        message.clear();
+    else
+        Q_UNUSED(message);
     qAbort();
 }
 
-
 /*!
     \internal
 */
diff --git a/src/corelib/global/qlogging.h b/src/corelib/global/qlogging.h
index ea1c68b1..44821b44 100644
--- a/src/corelib/global/qlogging.h
+++ b/src/corelib/global/qlogging.h
@@ -1,11 +1,14 @@
 // Copyright (C) 2016 The Qt Company Ltd.
 // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
 
-#include <QtCore/qglobal.h>
-
 #ifndef QLOGGING_H
 #define QLOGGING_H
 
+#include <QtCore/qtclasshelpermacros.h>
+#include <QtCore/qtconfigmacros.h>
+#include <QtCore/qtcoreexports.h>
+#include <QtCore/qcontainerfwd.h>
+
 #if 0
 // header is automatically included in qglobal.h
 #pragma qt_no_master_include
@@ -22,6 +25,7 @@ QT_BEGIN_NAMESPACE
 class QDebug;
 class QNoDebug;
 
+
 enum QtMsgType {
     QtDebugMsg,
     QtWarningMsg,
@@ -54,7 +58,7 @@ private:
 
 class QLoggingCategory;
 
-#ifdef Q_CC_MSVC
+#if defined(Q_CC_MSVC_ONLY)
 #  define QT_MESSAGE_LOGGER_NORETURN
 #else
 #  define QT_MESSAGE_LOGGER_NORETURN Q_NORETURN
diff --git a/src/corelib/global/qnamespace.qdoc b/src/corelib/global/qnamespace.qdoc
index 78c69176..d5731d66 100644
--- a/src/corelib/global/qnamespace.qdoc
+++ b/src/corelib/global/qnamespace.qdoc
@@ -94,9 +94,11 @@
     \value AA_DontShowShortcutsInContextMenus Actions with the Shortcut property
            won't be shown in any shortcut menus unless specifically set by the
            QAction::shortcutVisibleInContextMenu property. This value was added
-           in Qt 5.10, and defaults to the preference reported by the implementation
-           of QPlatformIntegration::styleHint. To override the platform integration,
-           set this attribute after QCoreApplication has been instantiated.
+           in Qt 5.10, and is by default based on the value reported by
+           QStyleHints::showShortcutsInContextMenus(). To override the default
+           behavior, set the style hint before QCoreApplication has been
+           instantiated, or set this attribute after QCoreApplication has
+           been instantiated.
 
     \value AA_NativeWindows Ensures that widgets have native windows.
 
diff --git a/src/corelib/global/qnumeric.h b/src/corelib/global/qnumeric.h
index 7779c035..2238c13d 100644
--- a/src/corelib/global/qnumeric.h
+++ b/src/corelib/global/qnumeric.h
@@ -8,7 +8,9 @@
 #pragma qt_class(QtNumeric)
 #endif
 
-#include <QtCore/qglobal.h>
+#include <QtCore/qtconfigmacros.h>
+#include <QtCore/qtcoreexports.h>
+#include <QtCore/qtypes.h>
 
 #include <cmath>
 #include <limits>
diff --git a/src/corelib/global/qnumeric_p.h b/src/corelib/global/qnumeric_p.h
index 9765ce4a..40c45999 100644
--- a/src/corelib/global/qnumeric_p.h
+++ b/src/corelib/global/qnumeric_p.h
@@ -180,7 +180,7 @@ static inline bool convertDoubleTo(double v, T *value, bool allow_precision_upgr
     // correct, but Clang, ICC and MSVC don't realize that it's a constant and
     // the math call stays in the compiled code.
 
-#ifdef Q_PROCESSOR_X86_64
+#if defined(Q_PROCESSOR_X86_64) && defined(__SSE2__)
     // Of course, UB doesn't apply if we use intrinsics, in which case we are
     // allowed to dpeend on exactly the processor's behavior. This
     // implementation uses the truncating conversions from Scalar Double to
diff --git a/src/corelib/global/qsimd.h b/src/corelib/global/qsimd.h
index 6ed7821e..4ef925ca 100644
--- a/src/corelib/global/qsimd.h
+++ b/src/corelib/global/qsimd.h
@@ -55,7 +55,7 @@
 
 #if defined(Q_PROCESSOR_X86) && defined(Q_CC_MSVC)
 // MSVC doesn't define __SSE2__, so do it ourselves
-#  if (defined(_M_X64) || _M_IX86_FP >= 2)
+#  if (defined(_M_X64) || _M_IX86_FP >= 2) && defined(QT_COMPILER_SUPPORTS_SSE2)
 #    define __SSE__ 1
 #    define __SSE2__ 1
 #  endif
diff --git a/src/corelib/global/qsimd_p.h b/src/corelib/global/qsimd_p.h
index 9f1833c9..5d53ec7d 100644
--- a/src/corelib/global/qsimd_p.h
+++ b/src/corelib/global/qsimd_p.h
@@ -218,31 +218,29 @@ asm(
 // x86-64 sub-architecture version 3
 //
 // The Intel Core 4th generation was codenamed "Haswell" and introduced AVX2,
-// BMI1, BMI2, FMA, LZCNT, MOVBE. This feature set was chosen as the version 3
-// of the x86-64 ISA (x86-64-v3) and is supported by GCC and Clang. On systems
-// with the GNU libc, libraries with this feature can be installed on a
-// "glibc-hwcaps/x86-64-v3" subdir. macOS's fat binaries support the "x86_64h"
-// sub-architecture too.
-
-#  if defined(__AVX2__)
-// List of features present with -march=x86-64-v3 and not architecturally
-// implied by __AVX2__
-#    define ARCH_HASWELL_MACROS     \
-    (__AVX2__ && __BMI__ && __BMI2__ && __F16C__ && __FMA__ && __LZCNT__ && __POPCNT__)
-#    if ARCH_HASWELL_MACROS == 0
+// BMI1, BMI2, FMA, LZCNT, MOVBE, which makes it a good divider for a
+// sub-target for us. The first AMD processor with AVX2 support (Zen) has the
+// same features, but had already introduced BMI1 in the previous generation.
+// This feature set was chosen as the version 3 of the x86-64 ISA (x86-64-v3)
+// and is supported by GCC and Clang.
+//
+// macOS's fat binaries support the "x86_64h" sub-architecture and the GNU libc
+// ELF loader also supports a "haswell/" subdir (e.g., /usr/lib/haswell).
+#  define ARCH_HASWELL_MACROS       (__AVX2__ + __FMA__)
+#  if ARCH_HASWELL_MACROS != 0
+#    if ARCH_HASWELL_MACROS != 2
 #      error "Please enable all x86-64-v3 extensions; you probably want to use -march=haswell or -march=x86-64-v3 instead of -mavx2"
 #    endif
 static_assert(ARCH_HASWELL_MACROS, "Undeclared identifiers indicate which features are missing.");
 #    define __haswell__       1
-#    undef ARCH_HASWELL_MACROS
 #  endif
+#  undef ARCH_HASWELL_MACROS
 
 // x86-64 sub-architecture version 4
 //
 // Similar to the above, x86-64-v4 matches the AVX512 variant of the Intel Core
 // 6th generation (codename "Skylake"). AMD Zen4 is the their first processor
-// with AVX512 support and it includes all of these too. The GNU libc subdir for
-// this is "glibc-hwcaps/x86-64-v4".
+// with AVX512 support and it includes all of these too.
 //
 #  define ARCH_SKX_MACROS           (__AVX512F__ + __AVX512BW__ + __AVX512CD__ + __AVX512DQ__ + __AVX512VL__)
 #  if ARCH_SKX_MACROS != 0
diff --git a/src/corelib/global/qsimd_x86.cpp b/src/corelib/global/qsimd_x86.cpp
index f1a08e05..9a3bd80b 100644
--- a/src/corelib/global/qsimd_x86.cpp
+++ b/src/corelib/global/qsimd_x86.cpp
@@ -1,8 +1,8 @@
 // Copyright (C) 2022 Intel Corporation.
 // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
-
 // This is a generated file. DO NOT EDIT.
 // Please see util/x86simdgen/README.md
+
 #include "qsimd_x86_p.h"
 
 static const char features_string[] =
@@ -30,24 +30,28 @@ static const char features_string[] =
     " avx512bw\0"
     " avx512vl\0"
     " avx512vbmi\0"
+    " waitpkg\0"
     " avx512vbmi2\0"
     " shstk\0"
     " gfni\0"
     " vaes\0"
-    " avx512vnni\0"
     " avx512bitalg\0"
     " avx512vpopcntdq\0"
     " hybrid\0"
     " ibt\0"
     " avx512fp16\0"
+    " raoint\0"
+    " cmpccxadd\0"
+    " avxifma\0"
+    " lam\0"
     "\0";
 
 static const uint16_t features_indices[] = {
       0,   6,  12,  19,  24,  32,  40,  47,
      55,  60,  65,  71,  78,  83,  89,  95,
     104, 114, 122, 134, 144, 149, 159, 169,
-    181, 194, 201, 207, 213, 225, 239, 256,
-    264, 269,
+    181, 190, 203, 210, 216, 222, 236, 253,
+    261, 266, 278, 286, 297, 306,
 };
 
 enum X86CpuidLeaves {
@@ -57,6 +61,7 @@ enum X86CpuidLeaves {
     Leaf07_00ECX,
     Leaf07_00EDX,
     Leaf07_01EAX,
+    Leaf07_01EDX,
     Leaf13_01EAX,
     Leaf80000001hECX,
     Leaf80000008hEBX,
@@ -88,16 +93,20 @@ static const uint16_t x86_locators[] = {
     Leaf07_00EBX*32 + 30,             // avx512bw
     Leaf07_00EBX*32 + 31,             // avx512vl
     Leaf07_00ECX*32 +  1,             // avx512vbmi
+    Leaf07_00ECX*32 +  5,             // waitpkg
     Leaf07_00ECX*32 +  6,             // avx512vbmi2
     Leaf07_00ECX*32 +  7,             // shstk
     Leaf07_00ECX*32 +  8,             // gfni
     Leaf07_00ECX*32 +  9,             // vaes
-    Leaf07_00ECX*32 + 11,             // avx512vnni
     Leaf07_00ECX*32 + 12,             // avx512bitalg
     Leaf07_00ECX*32 + 14,             // avx512vpopcntdq
     Leaf07_00EDX*32 + 15,             // hybrid
     Leaf07_00EDX*32 + 20,             // ibt
     Leaf07_00EDX*32 + 23,             // avx512fp16
+    Leaf07_01EAX*32 +  3,             // raoint
+    Leaf07_01EAX*32 +  6,             // cmpccxadd
+    Leaf07_01EAX*32 + 23,             // avxifma
+    Leaf07_01EAX*32 + 26,             // lam
 };
 
 struct X86Architecture
@@ -107,25 +116,31 @@ struct X86Architecture
 };
 
 static const struct X86Architecture x86_architectures[] = {
-    { cpu_sapphirerapids, "Sapphire Rapids" },
-    { cpu_tigerlake, "Tiger Lake" },
-    { cpu_icelake_server, "Ice Lake (Server)" },
-    { cpu_icelake_client, "Ice Lake (Client)" },
-    { cpu_alderlake, "Alder Lake" },
-    { cpu_cannonlake, "Cannon Lake" },
-    { cpu_cooperlake, "Cooper Lake" },
-    { cpu_cascadelake, "Cascade Lake" },
-    { cpu_skylake_avx512, "Skylake (Avx512)" },
-    { cpu_skylake, "Skylake" },
-    { cpu_tremont, "Tremont" },
-    { cpu_broadwell, "Broadwell" },
-    { cpu_haswell, "Haswell" },
-    { cpu_goldmont, "Goldmont" },
-    { cpu_ivybridge, "Ivy Bridge" },
-    { cpu_silvermont, "Silvermont" },
-    { cpu_sandybridge, "Sandy Bridge" },
-    { cpu_westmere, "Westmere" },
     { cpu_core2, "Core2" },
+    { cpu_westmere, "Westmere" },
+    { cpu_sandybridge, "Sandy Bridge" },
+    { cpu_silvermont, "Silvermont" },
+    { cpu_ivybridge, "Ivy Bridge" },
+    { cpu_goldmont, "Goldmont" },
+    { cpu_haswell, "Haswell" },
+    { cpu_broadwell, "Broadwell" },
+    { cpu_tremont, "Tremont" },
+    { cpu_skylake, "Skylake" },
+    { cpu_skylake_avx512, "Skylake (Avx512)" },
+    { cpu_cascadelake, "Cascade Lake" },
+    { cpu_cooperlake, "Cooper Lake" },
+    { cpu_cannonlake, "Cannon Lake" },
+    { cpu_gracemont, "Gracemont" },
+    { cpu_icelake_client, "Ice Lake (Client)" },
+    { cpu_icelake_server, "Ice Lake (Server)" },
+    { cpu_crestmont, "Crestmont" },
+    { cpu_tigerlake, "Tiger Lake" },
+    { cpu_clearwaterforest, "Clearwater Forest" },
+    { cpu_grandridge, "Grand Ridge" },
+    { cpu_raptorcove, "Raptor Cove" },
+    { cpu_redwoodcove, "Redwood Cove" },
+    { cpu_emeraldrapids, "Emerald Rapids" },
+    { cpu_graniterapids, "Granite Rapids" },
 };
 
 enum XSaveBits {
@@ -168,10 +183,10 @@ static const uint64_t XSaveReq_AvxState = 0
         | cpu_feature_avx512vbmi
         | cpu_feature_avx512vbmi2
         | cpu_feature_vaes
-        | cpu_feature_avx512vnni
         | cpu_feature_avx512bitalg
         | cpu_feature_avx512vpopcntdq
-        | cpu_feature_avx512fp16;
+        | cpu_feature_avx512fp16
+        | cpu_feature_avxifma;
 
 // List of features requiring XSave_Avx512State
 static const uint64_t XSaveReq_Avx512State = 0
@@ -183,7 +198,6 @@ static const uint64_t XSaveReq_Avx512State = 0
         | cpu_feature_avx512vl
         | cpu_feature_avx512vbmi
         | cpu_feature_avx512vbmi2
-        | cpu_feature_avx512vnni
         | cpu_feature_avx512bitalg
         | cpu_feature_avx512vpopcntdq
         | cpu_feature_avx512fp16;
diff --git a/src/corelib/global/qsimd_x86_p.h b/src/corelib/global/qsimd_x86_p.h
index 3e7427b0..1ec89d0c 100644
--- a/src/corelib/global/qsimd_x86_p.h
+++ b/src/corelib/global/qsimd_x86_p.h
@@ -1,5 +1,7 @@
 // Copyright (C) 2022 Intel Corporation.
 // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
+// This is a generated file. DO NOT EDIT.
+// Please see util/x86simdgen/README.md
 
 //
 //  W A R N I N G
@@ -50,11 +52,11 @@
 
 // in CPUID Leaf 7, Sub-leaf 0, ECX:
 #define cpu_feature_avx512vbmi                      (UINT64_C(1) << 23)
-#define cpu_feature_avx512vbmi2                     (UINT64_C(1) << 24)
-#define cpu_feature_shstk                           (UINT64_C(1) << 25)
-#define cpu_feature_gfni                            (UINT64_C(1) << 26)
-#define cpu_feature_vaes                            (UINT64_C(1) << 27)
-#define cpu_feature_avx512vnni                      (UINT64_C(1) << 28)
+#define cpu_feature_waitpkg                         (UINT64_C(1) << 24)
+#define cpu_feature_avx512vbmi2                     (UINT64_C(1) << 25)
+#define cpu_feature_shstk                           (UINT64_C(1) << 26)
+#define cpu_feature_gfni                            (UINT64_C(1) << 27)
+#define cpu_feature_vaes                            (UINT64_C(1) << 28)
 #define cpu_feature_avx512bitalg                    (UINT64_C(1) << 29)
 #define cpu_feature_avx512vpopcntdq                 (UINT64_C(1) << 30)
 
@@ -63,6 +65,12 @@
 #define cpu_feature_ibt                             (UINT64_C(1) << 32)
 #define cpu_feature_avx512fp16                      (UINT64_C(1) << 33)
 
+// in CPUID Leaf 7, Sub-leaf 1, EAX:
+#define cpu_feature_raoint                          (UINT64_C(1) << 34)
+#define cpu_feature_cmpccxadd                       (UINT64_C(1) << 35)
+#define cpu_feature_avxifma                         (UINT64_C(1) << 36)
+#define cpu_feature_lam                             (UINT64_C(1) << 37)
+
 // CPU architectures
 #define cpu_x86_64              (0 \
                                  | cpu_feature_sse2)
@@ -89,42 +97,65 @@
                                  | cpu_feature_rdseed)
 #define cpu_bdx                 (cpu_bdw)
 #define cpu_skl                 (cpu_bdw)
-#define cpu_adl                 (cpu_skl \
-                                 | cpu_feature_gfni \
-                                 | cpu_feature_vaes \
-                                 | cpu_feature_shstk \
-                                 | cpu_feature_ibt)
 #define cpu_skx                 (cpu_skl \
                                  | cpu_feature_avx512f \
                                  | cpu_feature_avx512dq \
                                  | cpu_feature_avx512cd \
                                  | cpu_feature_avx512bw \
                                  | cpu_feature_avx512vl)
-#define cpu_clx                 (cpu_skx \
-                                 | cpu_feature_avx512vnni)
+#define cpu_clx                 (cpu_skx)
 #define cpu_cpx                 (cpu_clx)
-#define cpu_cnl                 (cpu_skx \
+#define cpu_plc                 (cpu_skx \
                                  | cpu_feature_avx512ifma \
                                  | cpu_feature_avx512vbmi)
-#define cpu_icl                 (cpu_cnl \
+#define cpu_snc                 (cpu_plc \
                                  | cpu_feature_avx512vbmi2 \
                                  | cpu_feature_gfni \
                                  | cpu_feature_vaes \
-                                 | cpu_feature_avx512vnni \
                                  | cpu_feature_avx512bitalg \
                                  | cpu_feature_avx512vpopcntdq)
-#define cpu_icx                 (cpu_icl)
-#define cpu_tgl                 (cpu_icl \
+#define cpu_wlc                 (cpu_snc \
                                  | cpu_feature_shstk \
                                  | cpu_feature_ibt)
-#define cpu_spr                 (cpu_tgl)
+#define cpu_glc                 (cpu_wlc \
+                                 | cpu_feature_waitpkg)
+#define cpu_rpc                 (cpu_glc)
+#define cpu_rwc                 (cpu_rpc)
 #define cpu_slm                 (cpu_wsm \
                                  | cpu_feature_rdrnd \
                                  | cpu_feature_movbe)
 #define cpu_glm                 (cpu_slm \
                                  | cpu_feature_rdseed)
 #define cpu_tnt                 (cpu_glm \
-                                 | cpu_feature_gfni)
+                                 | cpu_feature_gfni \
+                                 | cpu_feature_waitpkg)
+#define cpu_grt                 (cpu_skl \
+                                 | cpu_feature_gfni \
+                                 | cpu_feature_vaes \
+                                 | cpu_feature_shstk \
+                                 | cpu_feature_ibt \
+                                 | cpu_feature_waitpkg)
+#define cpu_cmt                 (cpu_grt \
+                                 | cpu_feature_cmpccxadd \
+                                 | cpu_feature_avxifma)
+#define cpu_cnl                 (cpu_plc)
+#define cpu_icl                 (cpu_snc)
+#define cpu_tgl                 (cpu_wlc)
+#define cpu_adl                 (cpu_grt)
+#define cpu_rpl                 (cpu_grt)
+#define cpu_mtl                 (cpu_cmt)
+#define cpu_arl                 (cpu_cmt)
+#define cpu_lnl                 (cpu_cmt)
+#define cpu_icx                 (cpu_snc)
+#define cpu_spr                 (cpu_glc)
+#define cpu_emr                 (cpu_spr)
+#define cpu_gnr                 (cpu_glc)
+#define cpu_srf                 (cpu_cmt \
+                                 | cpu_feature_cmpccxadd \
+                                 | cpu_feature_avxifma)
+#define cpu_grr                 (cpu_srf \
+                                 | cpu_feature_raoint)
+#define cpu_cwf                 (cpu_srf)
 #define cpu_nehalem             (cpu_nhm)
 #define cpu_westmere            (cpu_wsm)
 #define cpu_sandybridge         (cpu_snb)
@@ -135,15 +166,32 @@
 #define cpu_skylake_avx512      (cpu_skx)
 #define cpu_cascadelake         (cpu_clx)
 #define cpu_cooperlake          (cpu_cpx)
+#define cpu_palmcove            (cpu_plc)
 #define cpu_cannonlake          (cpu_cnl)
+#define cpu_sunnycove           (cpu_snc)
 #define cpu_icelake_client      (cpu_icl)
 #define cpu_icelake_server      (cpu_icx)
-#define cpu_alderlake           (cpu_adl)
-#define cpu_sapphirerapids      (cpu_spr)
+#define cpu_willowcove          (cpu_wlc)
 #define cpu_tigerlake           (cpu_tgl)
+#define cpu_goldencove          (cpu_glc)
+#define cpu_alderlake           (cpu_adl)
+#define cpu_raptorcove          (cpu_rpc)
+#define cpu_raptorlake          (cpu_rpl)
+#define cpu_redwoodcove         (cpu_rwc)
+#define cpu_meteorlake          (cpu_mtl)
+#define cpu_arrowlake           (cpu_arl)
+#define cpu_lunarlake           (cpu_lnl)
+#define cpu_sapphirerapids      (cpu_spr)
+#define cpu_emeraldrapids       (cpu_emr)
+#define cpu_graniterapids       (cpu_gnr)
 #define cpu_silvermont          (cpu_slm)
 #define cpu_goldmont            (cpu_glm)
 #define cpu_tremont             (cpu_tnt)
+#define cpu_gracemont           (cpu_grt)
+#define cpu_crestmont           (cpu_cmt)
+#define cpu_grandridge          (cpu_grr)
+#define cpu_sierraforest        (cpu_srf)
+#define cpu_clearwaterforest    (cpu_cwf)
 
 // __attribute__ target strings for GCC and Clang
 #define QT_FUNCTION_TARGET_STRING_SSE2              "sse2"
@@ -170,16 +218,20 @@
 #define QT_FUNCTION_TARGET_STRING_AVX512BW          "avx512bw,avx512f"
 #define QT_FUNCTION_TARGET_STRING_AVX512VL          "avx512vl,avx512f"
 #define QT_FUNCTION_TARGET_STRING_AVX512VBMI        "avx512vbmi,avx512f"
+#define QT_FUNCTION_TARGET_STRING_WAITPKG           "waitpkg"
 #define QT_FUNCTION_TARGET_STRING_AVX512VBMI2       "avx512vbmi2,avx512f"
 #define QT_FUNCTION_TARGET_STRING_SHSTK             "shstk"
 #define QT_FUNCTION_TARGET_STRING_GFNI              "gfni"
 #define QT_FUNCTION_TARGET_STRING_VAES              "vaes,avx2,avx,aes"
-#define QT_FUNCTION_TARGET_STRING_AVX512VNNI        "avx512vnni,avx512f"
 #define QT_FUNCTION_TARGET_STRING_AVX512BITALG      "avx512bitalg,avx512f"
 #define QT_FUNCTION_TARGET_STRING_AVX512VPOPCNTDQ   "avx512vpopcntdq,avx512f"
 #define QT_FUNCTION_TARGET_STRING_HYBRID            "hybrid"
 #define QT_FUNCTION_TARGET_STRING_IBT               "ibt"
 #define QT_FUNCTION_TARGET_STRING_AVX512FP16        "avx512fp16,avx512f,f16c"
+#define QT_FUNCTION_TARGET_STRING_RAOINT            "raoint"
+#define QT_FUNCTION_TARGET_STRING_CMPCCXADD         "cmpccxadd"
+#define QT_FUNCTION_TARGET_STRING_AVXIFMA           "avxifma,avx"
+#define QT_FUNCTION_TARGET_STRING_LAM               "lam"
 #define QT_FUNCTION_TARGET_STRING_ARCH_X86_64       "sse2"
 #define QT_FUNCTION_TARGET_STRING_ARCH_CORE2        QT_FUNCTION_TARGET_STRING_ARCH_X86_64 ",sse3,ssse3,cx16"
 #define QT_FUNCTION_TARGET_STRING_ARCH_NHM          QT_FUNCTION_TARGET_STRING_ARCH_CORE2 ",sse4.1,sse4.2,popcnt"
@@ -190,18 +242,35 @@
 #define QT_FUNCTION_TARGET_STRING_ARCH_BDW          QT_FUNCTION_TARGET_STRING_ARCH_HSW ",adx,rdseed"
 #define QT_FUNCTION_TARGET_STRING_ARCH_BDX          QT_FUNCTION_TARGET_STRING_ARCH_BDW
 #define QT_FUNCTION_TARGET_STRING_ARCH_SKL          QT_FUNCTION_TARGET_STRING_ARCH_BDW ",xsavec,xsaves"
-#define QT_FUNCTION_TARGET_STRING_ARCH_ADL          QT_FUNCTION_TARGET_STRING_ARCH_SKL ",avxvnni,gfni,vaes,vpclmulqdq,serialize,shstk,cldemote,movdiri,movdir64b,ibt,waitpkg,keylocker"
 #define QT_FUNCTION_TARGET_STRING_ARCH_SKX          QT_FUNCTION_TARGET_STRING_ARCH_SKL ",avx512f,avx512dq,avx512cd,avx512bw,avx512vl"
 #define QT_FUNCTION_TARGET_STRING_ARCH_CLX          QT_FUNCTION_TARGET_STRING_ARCH_SKX ",avx512vnni"
 #define QT_FUNCTION_TARGET_STRING_ARCH_CPX          QT_FUNCTION_TARGET_STRING_ARCH_CLX ",avx512bf16"
-#define QT_FUNCTION_TARGET_STRING_ARCH_CNL          QT_FUNCTION_TARGET_STRING_ARCH_SKX ",avx512ifma,avx512vbmi"
-#define QT_FUNCTION_TARGET_STRING_ARCH_ICL          QT_FUNCTION_TARGET_STRING_ARCH_CNL ",avx512vbmi2,gfni,vaes,vpclmulqdq,avx512vnni,avx512bitalg,avx512vpopcntdq"
-#define QT_FUNCTION_TARGET_STRING_ARCH_ICX          QT_FUNCTION_TARGET_STRING_ARCH_ICL ",pconfig"
-#define QT_FUNCTION_TARGET_STRING_ARCH_TGL          QT_FUNCTION_TARGET_STRING_ARCH_ICL ",avx512vp2intersect,shstk,,movdiri,movdir64b,ibt,keylocker"
-#define QT_FUNCTION_TARGET_STRING_ARCH_SPR          QT_FUNCTION_TARGET_STRING_ARCH_TGL ",avx512bf16,amxtile,amxbf16,amxint8,avxvnni,cldemote,pconfig,waitpkg,serialize,tsxldtrk,uintr"
+#define QT_FUNCTION_TARGET_STRING_ARCH_PLC          QT_FUNCTION_TARGET_STRING_ARCH_SKX ",avx512ifma,avx512vbmi"
+#define QT_FUNCTION_TARGET_STRING_ARCH_SNC          QT_FUNCTION_TARGET_STRING_ARCH_PLC ",avx512vbmi2,gfni,vaes,vpclmulqdq,avx512vnni,avx512bitalg,avx512vpopcntdq"
+#define QT_FUNCTION_TARGET_STRING_ARCH_WLC          QT_FUNCTION_TARGET_STRING_ARCH_SNC ",shstk,movdiri,movdir64b,ibt,keylocker"
+#define QT_FUNCTION_TARGET_STRING_ARCH_GLC          QT_FUNCTION_TARGET_STRING_ARCH_WLC ",avx512bf16,avxvnni,cldemote,waitpkg,serialize,uintr"
+#define QT_FUNCTION_TARGET_STRING_ARCH_RPC          QT_FUNCTION_TARGET_STRING_ARCH_GLC
+#define QT_FUNCTION_TARGET_STRING_ARCH_RWC          QT_FUNCTION_TARGET_STRING_ARCH_RPC ",prefetchiti"
 #define QT_FUNCTION_TARGET_STRING_ARCH_SLM          QT_FUNCTION_TARGET_STRING_ARCH_WSM ",rdrnd,movbe"
 #define QT_FUNCTION_TARGET_STRING_ARCH_GLM          QT_FUNCTION_TARGET_STRING_ARCH_SLM ",fsgsbase,rdseed,lzcnt,xsavec,xsaves"
 #define QT_FUNCTION_TARGET_STRING_ARCH_TNT          QT_FUNCTION_TARGET_STRING_ARCH_GLM ",clwb,gfni,cldemote,waitpkg,movdiri,movdir64b"
+#define QT_FUNCTION_TARGET_STRING_ARCH_GRT          QT_FUNCTION_TARGET_STRING_ARCH_SKL ",avxvnni,gfni,vaes,vpclmulqdq,serialize,shstk,cldemote,movdiri,movdir64b,ibt,waitpkg,keylocker"
+#define QT_FUNCTION_TARGET_STRING_ARCH_CMT          QT_FUNCTION_TARGET_STRING_ARCH_GRT ",cmpccxadd,avxifma,avxneconvert,avxvnniint8"
+#define QT_FUNCTION_TARGET_STRING_ARCH_CNL          QT_FUNCTION_TARGET_STRING_ARCH_PLC
+#define QT_FUNCTION_TARGET_STRING_ARCH_ICL          QT_FUNCTION_TARGET_STRING_ARCH_SNC
+#define QT_FUNCTION_TARGET_STRING_ARCH_TGL          QT_FUNCTION_TARGET_STRING_ARCH_WLC
+#define QT_FUNCTION_TARGET_STRING_ARCH_ADL          QT_FUNCTION_TARGET_STRING_ARCH_GRT
+#define QT_FUNCTION_TARGET_STRING_ARCH_RPL          QT_FUNCTION_TARGET_STRING_ARCH_GRT
+#define QT_FUNCTION_TARGET_STRING_ARCH_MTL          QT_FUNCTION_TARGET_STRING_ARCH_CMT
+#define QT_FUNCTION_TARGET_STRING_ARCH_ARL          QT_FUNCTION_TARGET_STRING_ARCH_CMT
+#define QT_FUNCTION_TARGET_STRING_ARCH_LNL          QT_FUNCTION_TARGET_STRING_ARCH_CMT
+#define QT_FUNCTION_TARGET_STRING_ARCH_ICX          QT_FUNCTION_TARGET_STRING_ARCH_SNC ",pconfig"
+#define QT_FUNCTION_TARGET_STRING_ARCH_SPR          QT_FUNCTION_TARGET_STRING_ARCH_GLC ",pconfig,amx-tile,amx-bf16,amx-int8"
+#define QT_FUNCTION_TARGET_STRING_ARCH_EMR          QT_FUNCTION_TARGET_STRING_ARCH_SPR
+#define QT_FUNCTION_TARGET_STRING_ARCH_GNR          QT_FUNCTION_TARGET_STRING_ARCH_GLC ",pconfig,amx-tile,amx-bf16,amx-int8,amx-fp16,amx-complex"
+#define QT_FUNCTION_TARGET_STRING_ARCH_SRF          QT_FUNCTION_TARGET_STRING_ARCH_CMT ",cmpccxadd,avxifma,avxneconvert,avxvnniint8"
+#define QT_FUNCTION_TARGET_STRING_ARCH_GRR          QT_FUNCTION_TARGET_STRING_ARCH_SRF ",raoint"
+#define QT_FUNCTION_TARGET_STRING_ARCH_CWF          QT_FUNCTION_TARGET_STRING_ARCH_SRF
 #define QT_FUNCTION_TARGET_STRING_ARCH_NEHALEM      QT_FUNCTION_TARGET_STRING_ARCH_NHM
 #define QT_FUNCTION_TARGET_STRING_ARCH_WESTMERE     QT_FUNCTION_TARGET_STRING_ARCH_WSM
 #define QT_FUNCTION_TARGET_STRING_ARCH_SANDYBRIDGE  QT_FUNCTION_TARGET_STRING_ARCH_SNB
@@ -212,15 +281,32 @@
 #define QT_FUNCTION_TARGET_STRING_ARCH_SKYLAKE_AVX512 QT_FUNCTION_TARGET_STRING_ARCH_SKX
 #define QT_FUNCTION_TARGET_STRING_ARCH_CASCADELAKE  QT_FUNCTION_TARGET_STRING_ARCH_CLX
 #define QT_FUNCTION_TARGET_STRING_ARCH_COOPERLAKE   QT_FUNCTION_TARGET_STRING_ARCH_CPX
+#define QT_FUNCTION_TARGET_STRING_ARCH_PALMCOVE     QT_FUNCTION_TARGET_STRING_ARCH_PLC
 #define QT_FUNCTION_TARGET_STRING_ARCH_CANNONLAKE   QT_FUNCTION_TARGET_STRING_ARCH_CNL
+#define QT_FUNCTION_TARGET_STRING_ARCH_SUNNYCOVE    QT_FUNCTION_TARGET_STRING_ARCH_SNC
 #define QT_FUNCTION_TARGET_STRING_ARCH_ICELAKE_CLIENT QT_FUNCTION_TARGET_STRING_ARCH_ICL
 #define QT_FUNCTION_TARGET_STRING_ARCH_ICELAKE_SERVER QT_FUNCTION_TARGET_STRING_ARCH_ICX
-#define QT_FUNCTION_TARGET_STRING_ARCH_ALDERLAKE    QT_FUNCTION_TARGET_STRING_ARCH_ADL
-#define QT_FUNCTION_TARGET_STRING_ARCH_SAPPHIRERAPIDS QT_FUNCTION_TARGET_STRING_ARCH_SPR
+#define QT_FUNCTION_TARGET_STRING_ARCH_WILLOWCOVE   QT_FUNCTION_TARGET_STRING_ARCH_WLC
 #define QT_FUNCTION_TARGET_STRING_ARCH_TIGERLAKE    QT_FUNCTION_TARGET_STRING_ARCH_TGL
+#define QT_FUNCTION_TARGET_STRING_ARCH_GOLDENCOVE   QT_FUNCTION_TARGET_STRING_ARCH_GLC
+#define QT_FUNCTION_TARGET_STRING_ARCH_ALDERLAKE    QT_FUNCTION_TARGET_STRING_ARCH_ADL
+#define QT_FUNCTION_TARGET_STRING_ARCH_RAPTORCOVE   QT_FUNCTION_TARGET_STRING_ARCH_RPC
+#define QT_FUNCTION_TARGET_STRING_ARCH_RAPTORLAKE   QT_FUNCTION_TARGET_STRING_ARCH_RPL
+#define QT_FUNCTION_TARGET_STRING_ARCH_REDWOODCOVE  QT_FUNCTION_TARGET_STRING_ARCH_RWC
+#define QT_FUNCTION_TARGET_STRING_ARCH_METEORLAKE   QT_FUNCTION_TARGET_STRING_ARCH_MTL
+#define QT_FUNCTION_TARGET_STRING_ARCH_ARROWLAKE    QT_FUNCTION_TARGET_STRING_ARCH_ARL
+#define QT_FUNCTION_TARGET_STRING_ARCH_LUNARLAKE    QT_FUNCTION_TARGET_STRING_ARCH_LNL
+#define QT_FUNCTION_TARGET_STRING_ARCH_SAPPHIRERAPIDS QT_FUNCTION_TARGET_STRING_ARCH_SPR
+#define QT_FUNCTION_TARGET_STRING_ARCH_EMERALDRAPIDS QT_FUNCTION_TARGET_STRING_ARCH_EMR
+#define QT_FUNCTION_TARGET_STRING_ARCH_GRANITERAPIDS QT_FUNCTION_TARGET_STRING_ARCH_GNR
 #define QT_FUNCTION_TARGET_STRING_ARCH_SILVERMONT   QT_FUNCTION_TARGET_STRING_ARCH_SLM
 #define QT_FUNCTION_TARGET_STRING_ARCH_GOLDMONT     QT_FUNCTION_TARGET_STRING_ARCH_GLM
 #define QT_FUNCTION_TARGET_STRING_ARCH_TREMONT      QT_FUNCTION_TARGET_STRING_ARCH_TNT
+#define QT_FUNCTION_TARGET_STRING_ARCH_GRACEMONT    QT_FUNCTION_TARGET_STRING_ARCH_GRT
+#define QT_FUNCTION_TARGET_STRING_ARCH_CRESTMONT    QT_FUNCTION_TARGET_STRING_ARCH_CMT
+#define QT_FUNCTION_TARGET_STRING_ARCH_GRANDRIDGE   QT_FUNCTION_TARGET_STRING_ARCH_GRR
+#define QT_FUNCTION_TARGET_STRING_ARCH_SIERRAFOREST QT_FUNCTION_TARGET_STRING_ARCH_SRF
+#define QT_FUNCTION_TARGET_STRING_ARCH_CLEARWATERFOREST QT_FUNCTION_TARGET_STRING_ARCH_CWF
 
 static const uint64_t _compilerCpuFeatures = 0
 #ifdef __SSE2__
@@ -295,6 +381,9 @@ static const uint64_t _compilerCpuFeatures = 0
 #ifdef __AVX512VBMI__
          | cpu_feature_avx512vbmi
 #endif
+#ifdef __WAITPKG__
+         | cpu_feature_waitpkg
+#endif
 #ifdef __AVX512VBMI2__
          | cpu_feature_avx512vbmi2
 #endif
@@ -307,9 +396,6 @@ static const uint64_t _compilerCpuFeatures = 0
 #ifdef __VAES__
          | cpu_feature_vaes
 #endif
-#ifdef __AVX512VNNI__
-         | cpu_feature_avx512vnni
-#endif
 #ifdef __AVX512BITALG__
          | cpu_feature_avx512bitalg
 #endif
@@ -324,6 +410,18 @@ static const uint64_t _compilerCpuFeatures = 0
 #endif
 #ifdef __AVX512FP16__
          | cpu_feature_avx512fp16
+#endif
+#ifdef __RAOINT__
+         | cpu_feature_raoint
+#endif
+#ifdef __CMPCCXADD__
+         | cpu_feature_cmpccxadd
+#endif
+#ifdef __AVXIFMA__
+         | cpu_feature_avxifma
+#endif
+#ifdef __LAM__
+         | cpu_feature_lam
 #endif
         ;
 
@@ -353,16 +451,20 @@ enum X86CpuFeatures : uint64_t {
     CpuFeatureAVX512BW = cpu_feature_avx512bw,               ///< AVX512 Byte & Word
     CpuFeatureAVX512VL = cpu_feature_avx512vl,               ///< AVX512 Vector Length
     CpuFeatureAVX512VBMI = cpu_feature_avx512vbmi,           ///< AVX512 Vector Byte Manipulation Instructions
+    CpuFeatureWAITPKG = cpu_feature_waitpkg,                 ///< User-Level Monitor / Wait
     CpuFeatureAVX512VBMI2 = cpu_feature_avx512vbmi2,         ///< AVX512 Vector Byte Manipulation Instructions 2
     CpuFeatureSHSTK = cpu_feature_shstk,                     ///< Control Flow Enforcement Technology Shadow Stack
     CpuFeatureGFNI = cpu_feature_gfni,                       ///< Galois Field new instructions
     CpuFeatureVAES = cpu_feature_vaes,                       ///< 256- and 512-bit AES
-    CpuFeatureAVX512VNNI = cpu_feature_avx512vnni,           ///< AVX512 Vector Neural Network Instructions
     CpuFeatureAVX512BITALG = cpu_feature_avx512bitalg,       ///< AVX512 Bit Algorithms
     CpuFeatureAVX512VPOPCNTDQ = cpu_feature_avx512vpopcntdq, ///< AVX512 Population Count
     CpuFeatureHYBRID = cpu_feature_hybrid,                   ///< Hybrid processor
     CpuFeatureIBT = cpu_feature_ibt,                         ///< Control Flow Enforcement Technology Indirect Branch Tracking
     CpuFeatureAVX512FP16 = cpu_feature_avx512fp16,           ///< AVX512 16-bit Floating Point
+    CpuFeatureRAOINT = cpu_feature_raoint,                   ///< Remote Atomic Operations, Integer
+    CpuFeatureCMPCCXADD = cpu_feature_cmpccxadd,             ///< CMPccXADD instructions
+    CpuFeatureAVXIFMA = cpu_feature_avxifma,                 ///< AVX-IFMA instructions
+    CpuFeatureLAM = cpu_feature_lam,                         ///< Linear Address Masking
 }; // enum X86CpuFeatures
 
 enum X86CpuArchitectures : uint64_t {
@@ -372,22 +474,39 @@ enum X86CpuArchitectures : uint64_t {
     CpuArchWSM = cpu_wsm,
     CpuArchSNB = cpu_snb,
     CpuArchIVB = cpu_ivb,
-    CpuArchHSW = cpu_hsw,
+    CpuArchHSW = cpu_hsw,                                    ///< hle,rtm
     CpuArchBDW = cpu_bdw,
     CpuArchBDX = cpu_bdx,
     CpuArchSKL = cpu_skl,
-    CpuArchADL = cpu_adl,
-    CpuArchSKX = cpu_skx,
+    CpuArchSKX = cpu_skx,                                    ///< clwb
     CpuArchCLX = cpu_clx,
     CpuArchCPX = cpu_cpx,
-    CpuArchCNL = cpu_cnl,
-    CpuArchICL = cpu_icl,
-    CpuArchICX = cpu_icx,
-    CpuArchTGL = cpu_tgl,
-    CpuArchSPR = cpu_spr,
+    CpuArchPLC = cpu_plc,                                    ///< sha
+    CpuArchSNC = cpu_snc,                                    ///< fsrm,rdpid
+    CpuArchWLC = cpu_wlc,                                    ///< avx512vp2intersect
+    CpuArchGLC = cpu_glc,                                    ///< tsxldtrk
+    CpuArchRPC = cpu_rpc,
+    CpuArchRWC = cpu_rwc,
     CpuArchSLM = cpu_slm,
     CpuArchGLM = cpu_glm,
     CpuArchTNT = cpu_tnt,
+    CpuArchGRT = cpu_grt,                                    ///< rdpid
+    CpuArchCMT = cpu_cmt,
+    CpuArchCNL = cpu_cnl,
+    CpuArchICL = cpu_icl,
+    CpuArchTGL = cpu_tgl,
+    CpuArchADL = cpu_adl,
+    CpuArchRPL = cpu_rpl,
+    CpuArchMTL = cpu_mtl,
+    CpuArchARL = cpu_arl,
+    CpuArchLNL = cpu_lnl,
+    CpuArchICX = cpu_icx,
+    CpuArchSPR = cpu_spr,
+    CpuArchEMR = cpu_emr,
+    CpuArchGNR = cpu_gnr,
+    CpuArchSRF = cpu_srf,
+    CpuArchGRR = cpu_grr,
+    CpuArchCWF = cpu_cwf,
     CpuArchNehalem = cpu_nehalem,                            ///< Intel Core i3/i5/i7
     CpuArchWestmere = cpu_westmere,                          ///< Intel Core i3/i5/i7
     CpuArchSandyBridge = cpu_sandybridge,                    ///< Second Generation Intel Core i3/i5/i7
@@ -398,15 +517,32 @@ enum X86CpuArchitectures : uint64_t {
     CpuArchSkylakeAvx512 = cpu_skylake_avx512,               ///< Intel Xeon Scalable
     CpuArchCascadeLake = cpu_cascadelake,                    ///< Second Generation Intel Xeon Scalable
     CpuArchCooperLake = cpu_cooperlake,                      ///< Third Generation Intel Xeon Scalable
+    CpuArchPalmCove = cpu_palmcove,
     CpuArchCannonLake = cpu_cannonlake,                      ///< Intel Core i3-8121U
+    CpuArchSunnyCove = cpu_sunnycove,
     CpuArchIceLakeClient = cpu_icelake_client,               ///< Tenth Generation Intel Core i3/i5/i7
     CpuArchIceLakeServer = cpu_icelake_server,               ///< Third Generation Intel Xeon Scalable
-    CpuArchAlderLake = cpu_alderlake,
-    CpuArchSapphireRapids = cpu_sapphirerapids,
+    CpuArchWillowCove = cpu_willowcove,
     CpuArchTigerLake = cpu_tigerlake,                        ///< Eleventh Generation Intel Core i3/i5/i7
+    CpuArchGoldenCove = cpu_goldencove,
+    CpuArchAlderLake = cpu_alderlake,                        ///< Twelfth Generation Intel Core
+    CpuArchRaptorCove = cpu_raptorcove,
+    CpuArchRaptorLake = cpu_raptorlake,                      ///< Thirteenth Generation Intel Core
+    CpuArchRedwoodCove = cpu_redwoodcove,
+    CpuArchMeteorLake = cpu_meteorlake,
+    CpuArchArrowLake = cpu_arrowlake,
+    CpuArchLunarLake = cpu_lunarlake,
+    CpuArchSapphireRapids = cpu_sapphirerapids,              ///< Fourth Generation Intel Xeon Scalable
+    CpuArchEmeraldRapids = cpu_emeraldrapids,                ///< Fifth Generation Intel Xeon Scalable
+    CpuArchGraniteRapids = cpu_graniterapids,
     CpuArchSilvermont = cpu_silvermont,
     CpuArchGoldmont = cpu_goldmont,
     CpuArchTremont = cpu_tremont,
+    CpuArchGracemont = cpu_gracemont,
+    CpuArchCrestmont = cpu_crestmont,
+    CpuArchGrandRidge = cpu_grandridge,
+    CpuArchSierraForest = cpu_sierraforest,
+    CpuArchClearwaterForest = cpu_clearwaterforest,
 }; // enum X86cpuArchitectures
 #endif /* C++11 */
 
diff --git a/src/corelib/global/qsysinfo.cpp b/src/corelib/global/qsysinfo.cpp
index 3654b709..20919d08 100644
--- a/src/corelib/global/qsysinfo.cpp
+++ b/src/corelib/global/qsysinfo.cpp
@@ -352,8 +352,7 @@ static QByteArray getEtcFileFirstLine(const char *fileName)
         return QByteArray();
 
     const char *ptr = buffer.constData();
-    int eol = buffer.indexOf("\n");
-    return QByteArray(ptr, eol).trimmed();
+    return QByteArray(ptr, buffer.indexOf("\n")).trimmed();
 }
 
 static bool readEtcRedHatRelease(QUnixOSVersion &v)
@@ -368,9 +367,9 @@ static bool readEtcRedHatRelease(QUnixOSVersion &v)
     v.prettyName = QString::fromLatin1(line);
 
     const char keyword[] = "release ";
-    int releaseIndex = line.indexOf(keyword);
+    const qsizetype releaseIndex = line.indexOf(keyword);
     v.productType = QString::fromLatin1(line.mid(0, releaseIndex)).remove(u' ');
-    int spaceIndex = line.indexOf(' ', releaseIndex + strlen(keyword));
+    const qsizetype spaceIndex = line.indexOf(' ', releaseIndex + strlen(keyword));
     v.productVersion = QString::fromLatin1(line.mid(releaseIndex + strlen(keyword),
                                                     spaceIndex > -1 ? spaceIndex - releaseIndex - int(strlen(keyword)) : -1));
     return true;
@@ -788,6 +787,8 @@ QString QSysInfo::productType()
     return QStringLiteral("macos");
 #elif defined(Q_OS_DARWIN)
     return QStringLiteral("darwin");
+#elif defined(Q_OS_WASM)
+    return QStringLiteral("wasm");
 
 #elif defined(USE_ETC_OS_RELEASE) // Q_OS_UNIX
     QUnixOSVersion unixOsVersion;
diff --git a/src/corelib/global/qsysinfo.h b/src/corelib/global/qsysinfo.h
index 5dff3ee4..01f63132 100644
--- a/src/corelib/global/qsysinfo.h
+++ b/src/corelib/global/qsysinfo.h
@@ -2,21 +2,22 @@
 // Copyright (C) 2016 Intel Corporation.
 // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
 
-#include <QtCore/qglobal.h>
-
 #ifndef QSYSINFO_H
 #define QSYSINFO_H
 
+#include <QtCore/qtconfigmacros.h>
+#include <QtCore/qprocessordetection.h>
+#include <QtCore/qtcoreexports.h>
+
 QT_BEGIN_NAMESPACE
 
 /*
    System information
 */
 
-#ifdef Q_QDOC
-class QByteArray;
-#endif
 class QString;
+class QByteArray;
+
 class Q_CORE_EXPORT QSysInfo
 {
 public:
diff --git a/src/corelib/global/qsystemdetection.h b/src/corelib/global/qsystemdetection.h
index 3a992f2a..ca94d552 100644
--- a/src/corelib/global/qsystemdetection.h
+++ b/src/corelib/global/qsystemdetection.h
@@ -2,10 +2,6 @@
 // Copyright (C) 2019 Intel Corporation.
 // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
 
-#ifndef QGLOBAL_H
-# include <QtCore/qglobal.h>
-#endif
-
 #if 0
 #pragma qt_class(QtSystemDetection)
 #pragma qt_sync_skip_header_check
@@ -54,14 +50,10 @@
 
 #if defined(__APPLE__) && (defined(__GNUC__) || defined(__xlC__) || defined(__xlc__))
 #  include <TargetConditionals.h>
+#  define Q_OS_APPLE
 #  if defined(TARGET_OS_MAC) && TARGET_OS_MAC
 #    define Q_OS_DARWIN
 #    define Q_OS_BSD4
-#    ifdef __LP64__
-#      define Q_OS_DARWIN64
-#    else
-#      define Q_OS_DARWIN32
-#    endif
 #    if defined(TARGET_OS_IPHONE) && TARGET_OS_IPHONE
 #      define QT_PLATFORM_UIKIT
 #      if defined(TARGET_OS_WATCH) && TARGET_OS_WATCH
@@ -157,92 +149,32 @@
 
 // Compatibility synonyms
 #ifdef Q_OS_DARWIN
-#define Q_OS_MAC
-#endif
-#ifdef Q_OS_DARWIN32
-#define Q_OS_MAC32
-#endif
-#ifdef Q_OS_DARWIN64
-#define Q_OS_MAC64
-#endif
-#ifdef Q_OS_MACOS
-#define Q_OS_MACX
-#define Q_OS_OSX
+#  pragma clang diagnostic push
+#  pragma clang diagnostic ignored "-Wunknown-pragmas"
+#  define Q_OS_MAC // FIXME: Deprecate
+#  ifdef __LP64__
+#    define Q_OS_DARWIN64
+#    pragma clang deprecated(Q_OS_DARWIN64, "use Q_OS_DARWIN and QT_POINTER_SIZE/Q_PROCESSOR_* instead")
+#    define Q_OS_MAC64
+#    pragma clang deprecated(Q_OS_MAC64, "use Q_OS_DARWIN and QT_POINTER_SIZE/Q_PROCESSOR_* instead")
+#  else
+#    define Q_OS_DARWIN32
+#    pragma clang deprecated(Q_OS_DARWIN32, "use Q_OS_DARWIN and QT_POINTER_SIZE/Q_PROCESSOR_* instead")
+#    define Q_OS_MAC32
+#    pragma clang deprecated(Q_OS_MAC32, "use Q_OS_DARWIN and QT_POINTER_SIZE/Q_PROCESSOR_* instead")
+#  endif
+#  ifdef Q_OS_MACOS
+#    define Q_OS_MACX
+#    pragma clang deprecated(Q_OS_MACX, "use Q_OS_MACOS instead")
+#    define Q_OS_OSX
+#    pragma clang deprecated(Q_OS_OSX, "use Q_OS_MACOS instead")
+#  endif
+#  pragma clang diagnostic pop
 #endif
 
 #ifdef Q_OS_DARWIN
 #  include <Availability.h>
 #  include <AvailabilityMacros.h>
-#
-#  ifdef Q_OS_MACOS
-#    if !defined(__MAC_OS_X_VERSION_MIN_REQUIRED) || __MAC_OS_X_VERSION_MIN_REQUIRED < __MAC_10_6
-#       undef __MAC_OS_X_VERSION_MIN_REQUIRED
-#       define __MAC_OS_X_VERSION_MIN_REQUIRED __MAC_10_6
-#    endif
-#    if !defined(MAC_OS_X_VERSION_MIN_REQUIRED) || MAC_OS_X_VERSION_MIN_REQUIRED < MAC_OS_X_VERSION_10_6
-#       undef MAC_OS_X_VERSION_MIN_REQUIRED
-#       define MAC_OS_X_VERSION_MIN_REQUIRED MAC_OS_X_VERSION_10_6
-#    endif
-#  endif
-#
-#  // Numerical checks are preferred to named checks, but to be safe
-#  // we define the missing version names in case Qt uses them.
-#
-#  if !defined(__MAC_10_11)
-#       define __MAC_10_11 101100
-#  endif
-#  if !defined(__MAC_10_12)
-#       define __MAC_10_12 101200
-#  endif
-#  if !defined(__MAC_10_13)
-#       define __MAC_10_13 101300
-#  endif
-#  if !defined(__MAC_10_14)
-#       define __MAC_10_14 101400
-#  endif
-#  if !defined(__MAC_10_15)
-#       define __MAC_10_15 101500
-#  endif
-#  if !defined(__MAC_10_16)
-#       define __MAC_10_16 101600
-#  endif
-#  if !defined(MAC_OS_X_VERSION_10_11)
-#       define MAC_OS_X_VERSION_10_11 __MAC_10_11
-#  endif
-#  if !defined(MAC_OS_X_VERSION_10_12)
-#       define MAC_OS_X_VERSION_10_12 __MAC_10_12
-#  endif
-#  if !defined(MAC_OS_X_VERSION_10_13)
-#       define MAC_OS_X_VERSION_10_13 __MAC_10_13
-#  endif
-#  if !defined(MAC_OS_X_VERSION_10_14)
-#       define MAC_OS_X_VERSION_10_14 __MAC_10_14
-#  endif
-#  if !defined(MAC_OS_X_VERSION_10_15)
-#       define MAC_OS_X_VERSION_10_15 __MAC_10_15
-#  endif
-#  if !defined(MAC_OS_X_VERSION_10_16)
-#       define MAC_OS_X_VERSION_10_16 __MAC_10_16
-#  endif
-#
-#  if !defined(__IPHONE_10_0)
-#       define __IPHONE_10_0 100000
-#  endif
-#  if !defined(__IPHONE_10_1)
-#       define __IPHONE_10_1 100100
-#  endif
-#  if !defined(__IPHONE_10_2)
-#       define __IPHONE_10_2 100200
-#  endif
-#  if !defined(__IPHONE_10_3)
-#       define __IPHONE_10_3 100300
-#  endif
-#  if !defined(__IPHONE_11_0)
-#       define __IPHONE_11_0 110000
-#  endif
-#  if !defined(__IPHONE_12_0)
-#       define __IPHONE_12_0 120000
-#  endif
 
 #  define QT_DARWIN_PLATFORM_SDK_EQUAL_OR_ABOVE(macos, ios, tvos, watchos) \
     ((defined(__MAC_OS_X_VERSION_MAX_ALLOWED) && macos != __MAC_NA && __MAC_OS_X_VERSION_MAX_ALLOWED >= macos) || \
@@ -278,13 +210,7 @@
 #  define QT_WATCHOS_DEPLOYMENT_TARGET_BELOW(watchos) \
       QT_DARWIN_DEPLOYMENT_TARGET_BELOW(__MAC_NA, __IPHONE_NA, __TVOS_NA, watchos)
 
-// Compatibility synonyms, do not use
-#  define QT_MAC_PLATFORM_SDK_EQUAL_OR_ABOVE(osx, ios) QT_MACOS_IOS_PLATFORM_SDK_EQUAL_OR_ABOVE(osx, ios)
-#  define QT_MAC_DEPLOYMENT_TARGET_BELOW(osx, ios) QT_MACOS_IOS_DEPLOYMENT_TARGET_BELOW(osx, ios)
-#  define QT_OSX_PLATFORM_SDK_EQUAL_OR_ABOVE(osx) QT_MACOS_PLATFORM_SDK_EQUAL_OR_ABOVE(osx)
-#  define QT_OSX_DEPLOYMENT_TARGET_BELOW(osx) QT_MACOS_DEPLOYMENT_TARGET_BELOW(osx)
-
-#else
+#else // !Q_OS_DARWIN
 
 #define QT_DARWIN_PLATFORM_SDK_EQUAL_OR_ABOVE(macos, ios, tvos, watchos) (0)
 #define QT_MACOS_IOS_PLATFORM_SDK_EQUAL_OR_ABOVE(macos, ios) (0)
@@ -293,9 +219,6 @@
 #define QT_TVOS_PLATFORM_SDK_EQUAL_OR_ABOVE(tvos) (0)
 #define QT_WATCHOS_PLATFORM_SDK_EQUAL_OR_ABOVE(watchos) (0)
 
-#define QT_MAC_PLATFORM_SDK_EQUAL_OR_ABOVE(osx, ios) (0)
-#define QT_OSX_PLATFORM_SDK_EQUAL_OR_ABOVE(osx) (0)
-
 #endif // Q_OS_DARWIN
 
 #ifdef __LSB_VERSION__
diff --git a/src/corelib/global/qsystemdetection.qdoc b/src/corelib/global/qsystemdetection.qdoc
index 210f865f..11750e8c 100644
--- a/src/corelib/global/qsystemdetection.qdoc
+++ b/src/corelib/global/qsystemdetection.qdoc
@@ -23,6 +23,16 @@
     \relates <QtSystemDetection>
 
     Defined on Darwin-based operating systems such as \macos, iOS, watchOS, and tvOS.
+
+    \note Unless you are dealing with code specific to the Darwin kernel,
+    prefer Q_OS_APPLE to refer to the family of Apple operating systems.
+*/
+
+/*!
+    \macro Q_OS_APPLE
+    \relates <QtSystemDetection>
+
+    Defined on Apple operating systems such as \macos, iOS, watchOS, and tvOS.
 */
 
 /*!
diff --git a/src/corelib/global/qt_pch.h b/src/corelib/global/qt_pch.h
index 207a30a5..3f224cda 100644
--- a/src/corelib/global/qt_pch.h
+++ b/src/corelib/global/qt_pch.h
@@ -14,36 +14,31 @@
 // for rand_s, _CRT_RAND_S must be #defined before #including stdlib.h.
 // put it at the beginning so some indirect inclusion doesn't break it
 #ifndef _CRT_RAND_S
-#define _CRT_RAND_S
+#  define _CRT_RAND_S
 #endif
 #include <stdlib.h>
 #include <qglobal.h>
 #ifdef Q_OS_WIN
-# ifdef Q_CC_MINGW
+#  ifdef Q_CC_MINGW
 // <unistd.h> must be included before any other header pulls in <time.h>.
-#  include <unistd.h> // Define _POSIX_THREAD_SAFE_FUNCTIONS to obtain localtime_r()
-# endif
-# define _POSIX_
-# include <limits.h>
-# undef _POSIX_
-#        if defined(Q_CC_CLANG) && defined(Q_CC_MSVC)
-// See https://bugs.llvm.org/show_bug.cgi?id=41226
-#            include <wchar.h>
-__declspec(selectany) auto *__wmemchr_symbol_loader_value = wmemchr(L"", L'0', 0);
-#        endif
-#    endif
-#    include <qcoreapplication.h>
-#    include <qcoreevent.h>
-#    include <qiodevice.h>
-#    include <qlist.h>
-#    include <qvariant.h> /* All moc generated code has this include */
-#    include <qobject.h>
-#    if QT_CONFIG(regularexpression)
-#        include <qregularexpression.h>
-#    endif
-#    include <qscopedpointer.h>
-#    include <qshareddata.h>
-#    include <qstring.h>
-#    include <qstringlist.h>
-#    include <qtimer.h>
+#    include <unistd.h> // Define _POSIX_THREAD_SAFE_FUNCTIONS to obtain localtime_r()
+#  endif // Q_CC_MINGW
+#  define _POSIX_
+#  include <limits.h>
+#  undef _POSIX_
+#endif // Q_OS_WIN
+#include <qcoreapplication.h>
+#include <qcoreevent.h>
+#include <qiodevice.h>
+#include <qlist.h>
+#include <qvariant.h> /* All moc generated code has this include */
+#include <qobject.h>
+#if QT_CONFIG(regularexpression)
+#  include <qregularexpression.h>
+#endif
+#include <qscopedpointer.h>
+#include <qshareddata.h>
+#include <qstring.h>
+#include <qstringlist.h>
+#include <qtimer.h>
 #endif
diff --git a/src/corelib/global/qtconfiginclude.h b/src/corelib/global/qtconfiginclude.h
new file mode 100644
index 00000000..8b22a47a
--- /dev/null
+++ b/src/corelib/global/qtconfiginclude.h
@@ -0,0 +1,22 @@
+// Copyright (C) 2022 Intel Corporation
+// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
+
+#ifndef QTCONFIGINCLUDE_H
+#define QTCONFIGINCLUDE_H
+
+#if 0
+#  pragma qt_sync_stop_processing
+#endif
+
+#include <QtCore/qconfig.h>
+
+#ifdef QT_BOOTSTRAPPED
+// qconfig-bootstrapped.h is not supposed to be a part of the synced header files. So we find it by
+// the include path specified for Bootstrap library in the source tree instead of the build tree as
+// it's done for regular header files.
+#include "qconfig-bootstrapped.h"
+#else
+#include <QtCore/qtcore-config.h>
+#endif
+
+#endif // QTCONFIGINCLUDE_H
diff --git a/src/corelib/global/qtconfigmacros.h b/src/corelib/global/qtconfigmacros.h
index 7d42b13c..a89894ff 100644
--- a/src/corelib/global/qtconfigmacros.h
+++ b/src/corelib/global/qtconfigmacros.h
@@ -7,15 +7,10 @@
 #if 0
 #  pragma qt_sync_stop_processing
 #endif
-#ifdef QT_BOOTSTRAPPED
-// qconfig-bootstrapped.h is not supposed to be a part of the synced header files. So we find it by
-// the include path specified for Bootstrap library in the source tree instead of the build tree as
-// it's done for regular header files.
-#include "qconfig-bootstrapped.h"
-#else
-#include <QtCore/qconfig.h>
-#include <QtCore/qtcore-config.h>
-#endif
+
+#include <QtCore/qtconfiginclude.h>
+
+#include <assert.h>
 
 /*
    The Qt modules' export macros.
@@ -65,7 +60,7 @@
         1: The feature is available
 */
 #define QT_CONFIG(feature) (1/QT_FEATURE_##feature == 1)
-#define QT_REQUIRE_CONFIG(feature) Q_STATIC_ASSERT_X(QT_FEATURE_##feature == 1, "Required feature " #feature " for file " __FILE__ " not available.")
+#define QT_REQUIRE_CONFIG(feature) static_assert(QT_FEATURE_##feature == 1, "Required feature " #feature " for file " __FILE__ " not available.")
 
 /* moc compats (signals/slots) */
 #ifndef QT_MOC_COMPAT
diff --git a/src/corelib/global/qtdeprecationmarkers.h b/src/corelib/global/qtdeprecationmarkers.h
index fb97487b..a480a18e 100644
--- a/src/corelib/global/qtdeprecationmarkers.h
+++ b/src/corelib/global/qtdeprecationmarkers.h
@@ -203,6 +203,14 @@ QT_BEGIN_NAMESPACE
 # define QT_DEPRECATED_VERSION_6_9
 #endif
 
+#if QT_WARN_DEPRECATED_UP_TO >= QT_VERSION_CHECK(6, 10, 0)
+# define QT_DEPRECATED_VERSION_X_6_10(text) QT_DEPRECATED_X(text)
+# define QT_DEPRECATED_VERSION_6_10         QT_DEPRECATED
+#else
+# define QT_DEPRECATED_VERSION_X_6_10(text)
+# define QT_DEPRECATED_VERSION_6_10
+#endif
+
 #define QT_DEPRECATED_VERSION_X_5(minor, text)      QT_DEPRECATED_VERSION_X_5_##minor(text)
 #define QT_DEPRECATED_VERSION_X(major, minor, text) QT_DEPRECATED_VERSION_X_##major##_##minor(text)
 
@@ -299,6 +307,12 @@ QT_BEGIN_NAMESPACE
 # define QT_IF_DEPRECATED_SINCE_6_9(whenTrue, whenFalse) whenTrue
 #endif
 
+#if QT_DEPRECATED_SINCE(6, 10)
+# define QT_IF_DEPRECATED_SINCE_6_10(whenTrue, whenFalse) whenFalse
+#else
+# define QT_IF_DEPRECATED_SINCE_6_10(whenTrue, whenFalse) whenTrue
+#endif
+
 #ifdef __cplusplus
 // A tag to help mark stuff deprecated (cf. QStringViewLiteral)
 namespace QtPrivate {
diff --git a/src/corelib/global/qtenvironmentvariables.cpp b/src/corelib/global/qtenvironmentvariables.cpp
index 4046beae..47fc8f7e 100644
--- a/src/corelib/global/qtenvironmentvariables.cpp
+++ b/src/corelib/global/qtenvironmentvariables.cpp
@@ -2,6 +2,7 @@
 // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
 
 #include "qtenvironmentvariables.h"
+#include "qtenvironmentvariables_p.h"
 
 #include <qplatformdefs.h>
 #include <QtCore/qbytearray.h>
@@ -330,9 +331,11 @@ bool qunsetenv(const char *varName)
 #endif
 }
 
-/*
-    Wraps tzset(), which accesses the environment, so should only be called while
-    we hold the lock on the environment mutex.
+/* Various time-related APIs that need to consult system settings also need
+   protection with the same lock as the environment, since those system settings
+   include part of the environment (principally TZ).
+
+   First, tzset(), which POSIX explicitly says accesses the environment.
 */
 void qTzSet()
 {
@@ -344,9 +347,8 @@ void qTzSet()
 #endif // Q_OS_WIN
 }
 
-/*
-    Wrap mktime(), which is specified to behave as if it called tzset(), hence
-    shares its implicit environment-dependence.
+/* Wrap mktime(), which is specified to behave as if it called tzset(), hence
+   shares its implicit environment-dependence.
 */
 time_t qMkTime(struct tm *when)
 {
@@ -354,4 +356,70 @@ time_t qMkTime(struct tm *when)
     return mktime(when);
 }
 
+/* For localtime(), POSIX mandates that it behave as if it called tzset().
+   For the alternatives to it, we need (if only for compatibility) to do the
+   same explicitly, which should ensure a re-parse of timezone info.
+*/
+bool qLocalTime(time_t utc, struct tm *local)
+{
+    const auto locker = qt_scoped_lock(environmentMutex);
+#if defined(Q_OS_WIN)
+    // The doc of localtime_s() says that it corrects for the same things
+    // _tzset() sets the globals for, but QTBUG-109974 reveals a need for an
+    // explicit call, all the same.
+    _tzset();
+    return !localtime_s(local, &utc);
+#elif QT_CONFIG(thread) && defined(_POSIX_THREAD_SAFE_FUNCTIONS)
+    // Use the reentrant version of localtime() where available, as it is
+    // thread-safe and doesn't use a shared static data area.
+    // As localtime_r() is not specified to work as if it called tzset(),
+    // make an explicit call.
+    tzset();
+    if (tm *res = localtime_r(&utc, local)) {
+        Q_ASSERT(res == local);
+        Q_UNUSED(res);
+        return true;
+    }
+    return false;
+#else
+    // POSIX mandates that localtime() behaves as if it called tzset().
+    // Returns shared static data which may be overwritten at any time (albeit
+    // our lock probably keeps it safe). So copy the result promptly:
+    if (tm *res = localtime(&utc)) {
+        *local = *res;
+        return true;
+    }
+    return false;
+#endif
+}
+
+/* Access to the tzname[] global in one thread is UB if any other is calling
+   tzset() or anything that behaves as if it called tzset(). So also lock this
+   access to prevent such collisions.
+
+   Parameter dstIndex must be 1 for DST or 0 for standard time.
+   Returns the relevant form of the name of local-time's zone.
+*/
+QString qTzName(int dstIndex)
+{
+    char name[512];
+    bool ok;
+#if defined(Q_CC_MSVC)
+    size_t s = 0;
+    {
+        const auto locker = qt_scoped_lock(environmentMutex);
+        ok = _get_tzname(&s, name, 512, dstIndex) != 0;
+    }
+#else
+    {
+        const auto locker = qt_scoped_lock(environmentMutex);
+        const char *const src = tzname[dstIndex];
+        ok = src != nullptr;
+        if (ok)
+            memcpy(name, src, std::min(sizeof(name), strlen(src) + 1));
+    }
+#endif // Q_OS_WIN
+    return ok ? QString::fromLocal8Bit(name) : QString();
+}
+
 QT_END_NAMESPACE
diff --git a/src/corelib/global/qtenvironmentvariables_p.h b/src/corelib/global/qtenvironmentvariables_p.h
new file mode 100644
index 00000000..0c81d36d
--- /dev/null
+++ b/src/corelib/global/qtenvironmentvariables_p.h
@@ -0,0 +1,39 @@
+// Copyright (C) 2017 The Qt Company Ltd.
+// Copyright (C) 2015 Intel Corporation.
+// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
+
+#ifndef QTENVIRONMENTVARIABLES_P_H
+#define QTENVIRONMENTVARIABLES_P_H
+// Nothing but (tests and) ../time/qlocaltime.cpp should access this.
+#if defined(__cplusplus)
+
+//
+//  W A R N I N G
+//  -------------
+//
+// This file is not part of the Qt API. It exists purely as an implementation
+// detail. This header file may change from version to version without notice,
+// or even be removed.
+//
+// We mean it.
+//
+
+#include "qglobal_p.h"
+
+#ifdef Q_CC_MINGW
+#  include <unistd.h> // Define _POSIX_THREAD_SAFE_FUNCTIONS to obtain localtime_r()
+#endif
+#include <time.h>
+
+QT_BEGIN_NAMESPACE
+
+// These (behave as if they) consult the environment, so need to share its locking:
+Q_CORE_EXPORT void qTzSet();
+Q_CORE_EXPORT time_t qMkTime(struct tm *when);
+Q_CORE_EXPORT bool qLocalTime(time_t utc, struct tm *local);
+Q_CORE_EXPORT QString qTzName(int dstIndex);
+
+QT_END_NAMESPACE
+
+#endif // defined(__cplusplus)
+#endif // QTENVIRONMENTVARIABLES_P_H
diff --git a/src/corelib/global/qttypetraits.h b/src/corelib/global/qttypetraits.h
index 7e991ab8..49f2728e 100644
--- a/src/corelib/global/qttypetraits.h
+++ b/src/corelib/global/qttypetraits.h
@@ -5,6 +5,7 @@
 #define QTTYPETRAITS_H
 
 #include <QtCore/qtconfigmacros.h>
+#include <QtCore/qtdeprecationmarkers.h>
 
 #include <type_traits>
 #include <utility>
@@ -24,16 +25,21 @@ constexpr std::underlying_type_t<Enum> qToUnderlying(Enum e) noexcept
 }
 
 #ifndef QT_NO_AS_CONST
+#if QT_DEPRECATED_SINCE(6, 6)
 
 // this adds const to non-const objects (like std::as_const)
 template <typename T>
+QT_DEPRECATED_VERSION_X_6_6("Use std::as_const() instead.")
 constexpr typename std::add_const<T>::type &qAsConst(T &t) noexcept { return t; }
 // prevent rvalue arguments:
 template <typename T>
 void qAsConst(const T &&) = delete;
 
+#endif // QT_DEPRECATED_SINCE(6, 6)
 #endif // QT_NO_AS_CONST
 
+#ifndef QT_NO_QEXCHANGE
+
 // like std::exchange
 template <typename T, typename U = T>
 constexpr T qExchange(T &t, U &&newValue)
@@ -45,6 +51,8 @@ noexcept(std::conjunction_v<std::is_nothrow_move_constructible<T>,
     return old;
 }
 
+#endif // QT_NO_QEXCHANGE
+
 namespace QtPrivate {
 // helper to be used to trigger a "dependent static_assert(false)"
 // (for instance, in a final `else` branch of a `if constexpr`.)
diff --git a/src/corelib/global/qttypetraits.qdoc b/src/corelib/global/qttypetraits.qdoc
index 082b6255..44c9ad68 100644
--- a/src/corelib/global/qttypetraits.qdoc
+++ b/src/corelib/global/qttypetraits.qdoc
@@ -15,6 +15,8 @@
     \relates <QtTypeTraits>
     \since 5.7
 
+    \deprecated [6.6] Use std::as_const() instead.
+
     Returns \a t cast to \c{const T}.
 
     This function is a Qt implementation of C++17's std::as_const(),
@@ -52,6 +54,8 @@
     \since 5.7
     \overload
 
+    \deprecated [6.6]
+
     This overload is deleted to prevent a dangling reference in code like
     \snippet code/src_corelib_global_qglobal.cpp as-const-4
 */
diff --git a/src/corelib/global/qtversionchecks.h b/src/corelib/global/qtversionchecks.h
index d3b7a7b0..7b5d99af 100644
--- a/src/corelib/global/qtversionchecks.h
+++ b/src/corelib/global/qtversionchecks.h
@@ -9,15 +9,7 @@
 #pragma qt_sync_stop_processing
 #endif
 
-#ifdef QT_BOOTSTRAPPED
-// qconfig-bootstrapped.h is not supposed to be a part of the synced header files. So we find it by
-// the include path specified for Bootstrap library in the source tree instead of the build tree as
-// it's done for regular header files.
-#include "qconfig-bootstrapped.h"
-#else
-#include <QtCore/qconfig.h>
-#include <QtCore/qtcore-config.h>
-#endif
+#include <QtCore/qtconfiginclude.h>
 
 /*
    QT_VERSION is (major << 16) | (minor << 8) | patch.
@@ -36,7 +28,7 @@
          void QT7_ONLY(Q_CORE_EXPORT) void operate();
      }
 */
-#if QT_VERSION_MAJOR == 7
+#if QT_VERSION_MAJOR == 7 || defined(QT_BOOTSTRAPPED)
 #  define QT7_ONLY(...)         __VA_ARGS__
 #  define QT6_ONLY(...)
 #elif QT_VERSION_MAJOR == 6
diff --git a/src/corelib/global/qtypeinfo.h b/src/corelib/global/qtypeinfo.h
index f493dce1..f89bf726 100644
--- a/src/corelib/global/qtypeinfo.h
+++ b/src/corelib/global/qtypeinfo.h
@@ -2,15 +2,16 @@
 // Copyright (C) 2016 Intel Corporation.
 // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
 
-#include <QtCore/qglobal.h>
+#ifndef QTYPEINFO_H
+#define QTYPEINFO_H
+
+#include <QtCore/qcompilerdetection.h>
 #include <QtCore/qcontainerfwd.h>
+
 #include <variant>
 #include <optional>
 #include <tuple>
 
-#ifndef QTYPEINFO_H
-#define QTYPEINFO_H
-
 QT_BEGIN_NAMESPACE
 
 class QDebug;
@@ -45,8 +46,8 @@ class QTypeInfo
 {
 public:
     enum {
-        isPointer = std::is_pointer_v<T>,
-        isIntegral = std::is_integral_v<T>,
+        isPointer [[deprecated("Use std::is_pointer instead")]] = std::is_pointer_v<T>,
+        isIntegral [[deprecated("Use std::is_integral instead")]] = std::is_integral_v<T>,
         isComplex = !std::is_trivial_v<T>,
         isRelocatable = QtPrivate::qIsRelocatable<T>,
         isValueInitializationBitwiseZero = QtPrivate::qIsValueInitializationBitwiseZero<T>,
@@ -58,8 +59,8 @@ class QTypeInfo<void>
 {
 public:
     enum {
-        isPointer = false,
-        isIntegral = false,
+        isPointer [[deprecated("Use std::is_pointer instead")]] = false,
+        isIntegral [[deprecated("Use std::is_integral instead")]] = false,
         isComplex = false,
         isRelocatable = false,
         isValueInitializationBitwiseZero = false,
@@ -93,8 +94,8 @@ class QTypeInfoMerger
 public:
     static constexpr bool isComplex = ((QTypeInfo<Ts>::isComplex) || ...);
     static constexpr bool isRelocatable = ((QTypeInfo<Ts>::isRelocatable) && ...);
-    static constexpr bool isPointer = false;
-    static constexpr bool isIntegral = false;
+    [[deprecated("Use std::is_pointer instead")]] static constexpr bool isPointer = false;
+    [[deprecated("Use std::is_integral instead")]] static constexpr bool isIntegral = false;
     static constexpr bool isValueInitializationBitwiseZero = false;
 };
 
@@ -110,8 +111,8 @@ class QTypeInfo<CONTAINER<T...>> \
 { \
 public: \
     enum { \
-        isPointer = false, \
-        isIntegral = false, \
+        isPointer [[deprecated("Use std::is_pointer instead")]] = false, \
+        isIntegral [[deprecated("Use std::is_integral instead")]] = false, \
         isComplex = true, \
         isRelocatable = true, \
         isValueInitializationBitwiseZero = false, \
@@ -153,8 +154,8 @@ public: \
     enum { \
         isComplex = (((FLAGS) & Q_PRIMITIVE_TYPE) == 0) && !std::is_trivial_v<TYPE>, \
         isRelocatable = !isComplex || ((FLAGS) & Q_RELOCATABLE_TYPE) || QtPrivate::qIsRelocatable<TYPE>, \
-        isPointer = std::is_pointer_v< TYPE >, \
-        isIntegral = std::is_integral< TYPE >::value, \
+        isPointer [[deprecated("Use std::is_pointer instead")]] = std::is_pointer_v< TYPE >, \
+        isIntegral [[deprecated("Use std::is_integral instead")]] = std::is_integral< TYPE >::value, \
         isValueInitializationBitwiseZero = QtPrivate::qIsValueInitializationBitwiseZero<TYPE>, \
     }; \
 }
diff --git a/src/corelib/global/qtypes.cpp b/src/corelib/global/qtypes.cpp
index 5c3b963a..19a7541e 100644
--- a/src/corelib/global/qtypes.cpp
+++ b/src/corelib/global/qtypes.cpp
@@ -144,6 +144,43 @@ QT_BEGIN_NAMESPACE
     \sa Q_UINT64_C(), qint64, qulonglong
 */
 
+/*!
+    \typedef qint128
+    \relates <QtTypes>
+    \since 6.6
+
+    Typedef for \c{__int128} on platforms that support it (Qt defines the macro
+    \l QT_SUPPORTS_INT128 if this is the case).
+
+    Literals of this type can be created using the Q_INT128_C() macro.
+
+    \sa Q_INT128_C(), Q_INT128_MIN, Q_INT128_MAX, quint128, QT_SUPPORTS_INT128
+*/
+
+/*!
+    \typedef quint128
+    \relates <QtTypes>
+    \since 6.6
+
+    Typedef for \c{unsigned __int128} on platforms that support it (Qt defines
+    the macro \l QT_SUPPORTS_INT128 if this is the case).
+
+    Literals of this type can be created using the Q_UINT128_C() macro.
+
+    \sa Q_UINT128_C(), Q_UINT128_MAX, qint128, QT_SUPPORTS_INT128
+*/
+
+/*!
+    \macro QT_SUPPORTS_INT128
+    \relates <QtTypes>
+    \since 6.6
+
+    Qt defines this macro as well as the \l qint128 and \l quint128 types if
+    the platform has support for 128-bit integer types.
+
+    \sa qint128, quint128, Q_INT128_C(), Q_UINT128_C(), Q_INT128_MIN, Q_INT128_MAX, Q_UINT128_MAX
+*/
+
 /*!
     \typedef qintptr
     \relates <QtTypes>
@@ -327,7 +364,7 @@ QT_BEGIN_NAMESPACE
 
     \snippet code/src_corelib_global_qglobal.cpp 8
 
-    \sa qint64, Q_UINT64_C()
+    \sa qint64, Q_UINT64_C(), Q_INT128_C()
 */
 
 /*! \macro quint64 Q_UINT64_C(literal)
@@ -340,7 +377,79 @@ QT_BEGIN_NAMESPACE
 
     \snippet code/src_corelib_global_qglobal.cpp 9
 
-    \sa quint64, Q_INT64_C()
+    \sa quint64, Q_INT64_C(), Q_UINT128_C()
+*/
+
+/*!
+    \macro qint128 Q_INT128_C(literal)
+    \relates <QtTypes>
+    \since 6.6
+
+    Wraps the signed 128-bit integer \a literal in a
+    platform-independent way.
+
+    \note Unlike Q_INT64_C(), this macro is only available in C++, not in C.
+    This is because compilers do not provide these literals as built-ins and C
+    does not have support for user-defined literals.
+
+    \sa qint128, Q_UINT128_C(), Q_INT128_MIN, Q_INT128_MAX, Q_INT64_C(), QT_SUPPORTS_INT128
+*/
+
+/*!
+    \macro quint128 Q_UINT128_C(literal)
+    \relates <QtTypes>
+    \since 6.6
+
+    Wraps the unsigned 128-bit integer \a literal in a
+    platform-independent way.
+
+    \note Unlike Q_UINT64_C(), this macro is only available in C++, not in C.
+    This is because compilers do not provide these literals as built-ins and C
+    does not have support for user-defined literals.
+
+    \sa quint128, Q_INT128_C(), Q_UINT128_MAX, Q_UINT64_C(), QT_SUPPORTS_INT128
+*/
+
+/*!
+    \macro Q_UINT128_MAX
+    \relates <QtTypes>
+    \since 6.6
+
+    This macro expands to a compile-time constant representing the
+    maximum value representable in a \l quint128.
+
+    This macro is available in both C++ and C modes.
+
+    The minimum of \l quint128 is 0 (zero), so a \c{Q_UINT128_MIN} is neither
+    needed nor provided.
+
+    \sa Q_INT128_MAX, quint128, Q_UINT128_C, QT_SUPPORTS_INT128
+*/
+
+/*!
+    \macro Q_INT128_MIN
+    \relates <QtTypes>
+    \since 6.6
+
+    This macro expands to a compile-time constant representing the
+    minimum value representable in a \l qint128.
+
+    This macro is available in both C++ and C modes.
+
+    \sa Q_INT128_MAX, qint128, Q_INT128_C, QT_SUPPORTS_INT128
+*/
+
+/*!
+    \macro Q_INT128_MAX
+    \relates <QtTypes>
+    \since 6.6
+
+    This macro expands to a compile-time constant representing the
+    maximum value representable in a \l qint128.
+
+    This macro is available in both C++ and C modes.
+
+    \sa Q_INT128_MIN, Q_UINT128_MAX, qint128, Q_INT128_C, QT_SUPPORTS_INT128
 */
 
 // Statically check assumptions about the environment we're running
@@ -399,5 +508,18 @@ static_assert(sizeof(qint8) == 1, "Internal error, qint8 is misdefined");
 static_assert(sizeof(qint16)== 2, "Internal error, qint16 is misdefined");
 static_assert(sizeof(qint32) == 4, "Internal error, qint32 is misdefined");
 static_assert(sizeof(qint64) == 8, "Internal error, qint64 is misdefined");
+#ifdef QT_SUPPORTS_INT128
+static_assert(sizeof(qint128) == 16, "Internal error, qint128 is misdefined");
+#endif
+
+#ifdef QT_SUPPORTS_INT128
+// check that numeric_limits works:
+// This fails here for GCC 9, but succeeds on Clang and GCC >= 11
+// However, all tests in tst_qglobal::int128Literals() pass for GCC 9, too,
+// so just suppress the check for older GCC:
+#  if !defined(Q_CC_GNU_ONLY) || Q_CC_GNU >= 1100
+static_assert(std::numeric_limits<quint128>::max() == Q_UINT128_MAX);
+#  endif
+#endif
 
 QT_END_NAMESPACE
diff --git a/src/corelib/global/qtypes.h b/src/corelib/global/qtypes.h
index f7757b43..41e60257 100644
--- a/src/corelib/global/qtypes.h
+++ b/src/corelib/global/qtypes.h
@@ -7,10 +7,13 @@
 
 #include <QtCore/qprocessordetection.h>
 #include <QtCore/qtconfigmacros.h>
+#include <QtCore/qassert.h>
 
 #ifdef __cplusplus
 #  include <cstddef>
 #  include <cstdint>
+#else
+#  include <assert.h>
 #endif
 
 #if 0
@@ -19,8 +22,6 @@
 #pragma qt_sync_stop_processing
 #endif
 
-#ifndef __ASSEMBLER__
-
 /*
    Useful type definitions for Qt
 */
@@ -58,9 +59,104 @@ typedef unsigned long long quint64; /* 64 bit unsigned */
 typedef qint64 qlonglong;
 typedef quint64 qulonglong;
 
+#if defined(__SIZEOF_INT128__) && !defined(QT_NO_INT128)
+#  define QT_SUPPORTS_INT128 __SIZEOF_INT128__
+#else
+#  undef QT_SUPPORTS_INT128
+#endif
+
+#if defined(QT_SUPPORTS_INT128)
+__extension__ typedef __int128_t qint128;
+__extension__ typedef __uint128_t quint128;
+
+// limits:
+#  ifdef __cplusplus /* need to avoid c-style-casts in C++ mode */
+#    define QT_C_STYLE_CAST(type, x) static_cast<type>(x)
+#  else /* but C doesn't have constructor-style casts */
+#    define QT_C_STYLE_CAST(type, x) ((type)x)
+#  endif
+#  ifndef Q_UINT128_MAX /* allow qcompilerdetection.h/user override */
+#    define Q_UINT128_MAX QT_C_STYLE_CAST(quint128, -1)
+#  endif
+#  define Q_INT128_MAX QT_C_STYLE_CAST(qint128, (Q_UINT128_MAX / 2))
+#  define Q_INT128_MIN (-Q_INT128_MAX - 1)
+
+#  ifdef __cplusplus
+    namespace QtPrivate::NumberLiterals {
+    namespace detail {
+        template <quint128 accu, int base>
+        constexpr quint128 construct() { return accu; }
+
+        template <quint128 accu, int base, char C, char...Cs>
+        constexpr quint128 construct()
+        {
+            if constexpr (C != '\'') { // ignore digit separators
+                const int digitValue = '0' <= C && C <= '9' ? C - '0'      :
+                                       'a' <= C && C <= 'z' ? C - 'a' + 10 :
+                                       'A' <= C && C <= 'Z' ? C - 'A' + 10 :
+                                       /* else */        -1 ;
+                static_assert(digitValue >= 0 && digitValue < base,
+                              "Invalid character");
+                // accu * base + digitValue <= MAX, but without overflow:
+                static_assert(accu <= (Q_UINT128_MAX - digitValue) / base,
+                              "Overflow occurred");
+                return construct<accu * base + digitValue, base, Cs...>();
+            } else {
+                return construct<accu, base, Cs...>();
+            }
+        }
+
+        template <char C, char...Cs>
+        constexpr quint128 parse0xb()
+        {
+            constexpr quint128 accu = 0;
+            if constexpr (C == 'x' || C == 'X')
+                return construct<accu, 16,   Cs...>(); // base 16, skip 'x'
+            else if constexpr (C == 'b' || C == 'B')
+                return construct<accu, 2,    Cs...>(); // base 2, skip 'b'
+            else
+                return construct<accu, 8, C, Cs...>(); // base 8, include C
+        }
+
+        template <char...Cs>
+        constexpr quint128 parse0()
+        {
+            if constexpr (sizeof...(Cs) == 0) // this was just a literal 0
+                return 0;
+            else
+                return parse0xb<Cs...>();
+        }
+
+        template <char C, char...Cs>
+        constexpr quint128 parse()
+        {
+            if constexpr (C == '0')
+                return parse0<Cs...>(); // base 2, 8, or 16 (or just a literal 0), skip '0'
+            else
+                return construct<0, 10, C, Cs...>(); // initial accu 0, base 10, include C
+        }
+    } // namespace detail
+    template <char...Cs>
+    constexpr quint128 operator""_quint128() noexcept
+    { return QtPrivate::NumberLiterals::detail::parse<Cs...>(); }
+    template <char...Cs>
+    constexpr qint128 operator""_qint128() noexcept
+    { return qint128(QtPrivate::NumberLiterals::detail::parse<Cs...>()); }
+
+    #ifndef Q_UINT128_C // allow qcompilerdetection.h/user override
+    #  define Q_UINT128_C(c) ([]{ using namespace QtPrivate::NumberLiterals; return c ## _quint128; }())
+    #endif
+    #ifndef Q_INT128_C // allow qcompilerdetection.h/user override
+    #  define Q_INT128_C(c)  ([]{ using namespace QtPrivate::NumberLiterals; return c ## _qint128;  }())
+    #endif
+
+    } // namespace QtPrivate::NumberLiterals
+#  endif // __cplusplus
+#endif // QT_SUPPORTS_INT128
+
 #ifndef __cplusplus
 // In C++ mode, we define below using QIntegerForSize template
-Q_STATIC_ASSERT_X(sizeof(ptrdiff_t) == sizeof(size_t), "Weird ptrdiff_t and size_t definitions");
+static_assert(sizeof(ptrdiff_t) == sizeof(size_t), "Weird ptrdiff_t and size_t definitions");
 typedef ptrdiff_t qptrdiff;
 typedef ptrdiff_t qsizetype;
 typedef ptrdiff_t qintptr;
@@ -102,8 +198,8 @@ template <>    struct QIntegerForSize<1> { typedef quint8  Unsigned; typedef qin
 template <>    struct QIntegerForSize<2> { typedef quint16 Unsigned; typedef qint16 Signed; };
 template <>    struct QIntegerForSize<4> { typedef quint32 Unsigned; typedef qint32 Signed; };
 template <>    struct QIntegerForSize<8> { typedef quint64 Unsigned; typedef qint64 Signed; };
-#if defined(Q_CC_GNU) && defined(__SIZEOF_INT128__)
-template <>    struct QIntegerForSize<16> { __extension__ typedef unsigned __int128 Unsigned; __extension__ typedef __int128 Signed; };
+#if defined(QT_SUPPORTS_INT128)
+template <>    struct QIntegerForSize<16> { typedef quint128 Unsigned; typedef qint128 Signed; };
 #endif
 template <class T> struct QIntegerForSizeof: QIntegerForSize<sizeof(T)> { };
 typedef QIntegerForSize<Q_PROCESSOR_WORDSIZE>::Signed qregisterint;
@@ -158,6 +254,4 @@ using qsizetype = QIntegerForSizeof<std::size_t>::Signed;
 
 QT_END_NAMESPACE
 
-#endif // __ASSEMBLER__
-
 #endif // QTYPES_H
diff --git a/src/corelib/global/qversiontagging.h b/src/corelib/global/qversiontagging.h
index e64cae1d..73faf5b6 100644
--- a/src/corelib/global/qversiontagging.h
+++ b/src/corelib/global/qversiontagging.h
@@ -1,12 +1,14 @@
 // Copyright (C) 2022 Intel Corporation.
 // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
 
-// qglobal.h includes this header, so keep it outside of our include guards
-#include <QtCore/qglobal.h>
-
 #if !defined(QVERSIONTAGGING_H)
 #define QVERSIONTAGGING_H
 
+#include <QtCore/qcompilerdetection.h>
+#include <QtCore/qtconfigmacros.h>
+#include <QtCore/qtversionchecks.h>
+#include <QtCore/qtypes.h>
+
 QT_BEGIN_NAMESPACE
 
 /*
@@ -86,7 +88,7 @@ struct QVersionTag
 //   Calling convention on other architectures does not prepend a _
 #    define QT_MANGLE_IMPORT_PREFIX     __imp_
 #  endif
-#  ifdef Q_CC_MSVC
+#  if defined(Q_CC_MSVC_ONLY)
 #    pragma section(".qtversion",read,shared)
 #    define QT_VERSION_TAG_SECTION      __declspec(allocate(".qtversion"))
 #    define QT_VERSION_TAG_ATTRIBUTE    __declspec(selectany) extern const
diff --git a/src/corelib/io/qabstractfileengine.cpp b/src/corelib/io/qabstractfileengine.cpp
index 401eae8a..25dfe79d 100644
--- a/src/corelib/io/qabstractfileengine.cpp
+++ b/src/corelib/io/qabstractfileengine.cpp
@@ -225,6 +225,8 @@ QAbstractFileEngine *QAbstractFileEngine::create(const QString &fileName)
     the base name).
     \value AbsoluteLinkTarget The full file name of the file that this file is a
     link to. (This will be empty if this file is not a link.)
+    \value RawLinkPath The raw link path of the file that this file is a
+    link to. (This will be empty if this file is not a link.)
     \value CanonicalName Often very similar to AbsoluteLinkTarget. Will return the true path to the file.
     \value CanonicalPathName Same as CanonicalName, excluding the base name.
     \value BundleName Returns the name of the bundle implies BundleType is set.
diff --git a/src/corelib/io/qabstractfileengine_p.h b/src/corelib/io/qabstractfileengine_p.h
index 04ad7827..28f07bf8 100644
--- a/src/corelib/io/qabstractfileengine_p.h
+++ b/src/corelib/io/qabstractfileengine_p.h
@@ -73,6 +73,7 @@ public:
         CanonicalPathName,
         BundleName,
         JunctionName,
+        RawLinkPath,
         NFileNames  // Must be last.
     };
     enum FileOwner {
diff --git a/src/corelib/io/qdebug.cpp b/src/corelib/io/qdebug.cpp
index dd8661cc..240cc2ea 100644
--- a/src/corelib/io/qdebug.cpp
+++ b/src/corelib/io/qdebug.cpp
@@ -15,6 +15,8 @@
 #include <private/qtextstream_p.h>
 #include <private/qtools_p.h>
 
+#include <q20chrono.h>
+
 QT_BEGIN_NAMESPACE
 
 using namespace QtMiscUtils;
@@ -345,6 +347,95 @@ void QDebug::putByteArray(const char *begin, size_t length, Latin1Content conten
     }
 }
 
+static QByteArray timeUnit(qint64 num, qint64 den)
+{
+    using namespace std::chrono;
+    using namespace q20::chrono;
+
+    if (num == 1 && den > 1) {
+        // sub-multiple of seconds
+        char prefix = '\0';
+        auto tryprefix = [&](auto d, char c) {
+            static_assert(decltype(d)::num == 1, "not an SI prefix");
+            if (den == decltype(d)::den)
+                prefix = c;
+        };
+
+        // "u" should be "µ", but debugging output is not always UTF-8-safe
+        tryprefix(std::milli{}, 'm');
+        tryprefix(std::micro{}, 'u');
+        tryprefix(std::nano{}, 'n');
+        tryprefix(std::pico{}, 'p');
+        tryprefix(std::femto{}, 'f');
+        tryprefix(std::atto{}, 'a');
+        // uncommon ones later
+        tryprefix(std::centi{}, 'c');
+        tryprefix(std::deci{}, 'd');
+        if (prefix) {
+            char unit[3] = { prefix, 's' };
+            return QByteArray(unit, sizeof(unit) - 1);
+        }
+    }
+
+    const char *unit = nullptr;
+    if (num > 1 && den == 1) {
+        // multiple of seconds - but we don't use SI prefixes
+        auto tryunit = [&](auto d, const char *name) {
+            static_assert(decltype(d)::period::den == 1, "not a multiple of a second");
+            if (unit || num % decltype(d)::period::num)
+                return;
+            unit = name;
+            num /= decltype(d)::period::num;
+        };
+        tryunit(years{}, "yr");
+        tryunit(weeks{}, "wk");
+        tryunit(days{}, "d");
+        tryunit(hours{}, "h");
+        tryunit(minutes{}, "min");
+    }
+    if (!unit)
+        unit = "s";
+
+    if (num == 1 && den == 1)
+        return unit;
+    if (Q_UNLIKELY(num < 1 || den < 1))
+        return QString::asprintf("<invalid time unit %lld/%lld>", num, den).toLatin1();
+
+    // uncommon units: will return something like "[2/3]s"
+    //  strlen("[/]min") = 6
+    char buf[2 * (std::numeric_limits<qint64>::digits10 + 2) + 10];
+    size_t len = 0;
+    auto appendChar = [&](char c) {
+        Q_ASSERT(len < sizeof(buf));
+        buf[len++] = c;
+    };
+    auto appendNumber = [&](qint64 value) {
+        if (value >= 10'000 && (value % 1000) == 0)
+            len += qsnprintf(buf + len, sizeof(buf) - len, "%.6g", double(value));  // "1e+06"
+        else
+            len += qsnprintf(buf + len, sizeof(buf) - len, "%lld", value);
+    };
+    appendChar('[');
+    appendNumber(num);
+    if (den != 1) {
+        appendChar('/');
+        appendNumber(den);
+    }
+    appendChar(']');
+    memcpy(buf + len, unit, strlen(unit));
+    return QByteArray(buf, len + strlen(unit));
+}
+
+/*!
+    \since 6.6
+    \internal
+    Helper to the std::chrono::duration debug streaming output.
+ */
+void QDebug::putTimeUnit(qint64 num, qint64 den)
+{
+    stream->ts << timeUnit(num, den); // ### optimize
+}
+
 /*!
     \fn QDebug::swap(QDebug &other)
     \since 5.0
@@ -776,6 +867,18 @@ QDebug &QDebug::resetFormat()
     \endlist
 */
 
+/*!
+    \since 6.6
+    \fn template <typename Rep, typename Period> QDebug &QDebug::operator<<(std::chrono::duration<Rep, Period> duration)
+
+    Prints the time duration \a duration to the stream and returns a reference
+    to the stream. The printed string is the numeric representation of the
+    period followed by the time unit, similar to what the C++ Standard Library
+    would produce with \c{std::ostream}.
+
+    The unit is not localized.
+*/
+
 /*!
     \fn template <class T> QString QDebug::toString(T &&object)
     \since 6.0
@@ -1023,7 +1126,6 @@ void qt_QMetaEnum_flagDebugOperator(QDebug &debug, size_t sizeofT, int value)
 
 #ifndef QT_NO_QOBJECT
 /*!
-    \fn QDebug qt_QMetaEnum_debugOperator(QDebug &, int value, const QMetaObject *, const char *name)
     \internal
 
     Formats the given enum \a value for debug output.
@@ -1070,7 +1172,7 @@ QDebug qt_QMetaEnum_debugOperator(QDebug &dbg, qint64 value, const QMetaObject *
             dbg << scope << u"::";
     }
 
-    const char *key = me.valueToKey(value);
+    const char *key = me.valueToKey(static_cast<int>(value));
     const bool scoped = me.isScoped() || verbosity & 1;
     if (scoped || !key)
         dbg << me.enumName() << (!key ? u"(" : u"::");
@@ -1139,7 +1241,7 @@ QDebug qt_QMetaEnum_flagDebugOperator(QDebug &debug, quint64 value, const QMetaO
         debug << '(';
     }
 
-    debug << me.valueToKeys(value);
+    debug << me.valueToKeys(static_cast<int>(value));
 
     if (enumScope)
         debug << ')';
diff --git a/src/corelib/io/qdebug.h b/src/corelib/io/qdebug.h
index a55a6ad1..8469a4a8 100644
--- a/src/corelib/io/qdebug.h
+++ b/src/corelib/io/qdebug.h
@@ -16,6 +16,7 @@
 #include <QtCore/qsharedpointer.h>
 
 // all these have already been included by various headers above, but don't rely on indirect includes:
+#include <chrono>
 #include <list>
 #include <map>
 #include <string>
@@ -67,6 +68,7 @@ class QT6_ONLY(Q_CORE_EXPORT) QDebug : public QIODeviceBase
     QT7_ONLY(Q_CORE_EXPORT) void putUcs4(uint ucs4);
     QT7_ONLY(Q_CORE_EXPORT) void putString(const QChar *begin, size_t length);
     QT7_ONLY(Q_CORE_EXPORT) void putByteArray(const char *begin, size_t length, Latin1Content content);
+    QT7_ONLY(Q_CORE_EXPORT) void putTimeUnit(qint64 num, qint64 den);
 public:
     explicit QDebug(QIODevice *device) : stream(new Stream(device)) {}
     explicit QDebug(QString *string) : stream(new Stream(string)) {}
@@ -189,6 +191,14 @@ public:
     { return *this << QString::fromUcs4(s.data(), s.size()); }
 #endif // !Q_QDOC
 
+    template <typename Rep, typename Period>
+    QDebug &operator<<(std::chrono::duration<Rep, Period> duration)
+    {
+        stream->ts << duration.count();
+        putTimeUnit(Period::num, Period::den);
+        return maybeSpace();
+    }
+
     template <typename T>
     static QString toString(T &&object)
     {
@@ -202,10 +212,12 @@ public:
 Q_DECLARE_SHARED(QDebug)
 
 class QDebugStateSaverPrivate;
-class Q_CORE_EXPORT QDebugStateSaver
+class QDebugStateSaver
 {
 public:
+    Q_NODISCARD_CTOR Q_CORE_EXPORT
     QDebugStateSaver(QDebug &dbg);
+    Q_CORE_EXPORT
     ~QDebugStateSaver();
 private:
     Q_DISABLE_COPY(QDebugStateSaver)
@@ -528,7 +540,7 @@ inline QDebug operator<<(QDebug debug, QKeyCombination combination)
     return debug;
 }
 
-#ifdef Q_OS_MAC
+#ifdef Q_OS_DARWIN
 
 // We provide QDebug stream operators for commonly used Core Foundation
 // and Core Graphics types, as well as NSObject. Additional CF/CG types
@@ -607,7 +619,7 @@ QT_FOR_EACH_MUTABLE_CORE_GRAPHICS_TYPE(QT_FORWARD_DECLARE_QDEBUG_OPERATOR_FOR_CF
 #undef QT_FORWARD_DECLARE_CG_TYPE
 #undef QT_FORWARD_DECLARE_MUTABLE_CG_TYPE
 
-#endif // Q_OS_MAC
+#endif // Q_OS_DARWIN
 
 QT_END_NAMESPACE
 
diff --git a/src/corelib/io/qdir.cpp b/src/corelib/io/qdir.cpp
index b7ee8284..3ad804b9 100644
--- a/src/corelib/io/qdir.cpp
+++ b/src/corelib/io/qdir.cpp
@@ -22,7 +22,9 @@
 #include <qstringbuilder.h>
 
 #ifndef QT_BOOTSTRAPPED
-# include "qreadwritelock.h"
+#  include <qcollator.h>
+#  include "qreadwritelock.h"
+#  include "qmutex.h"
 #endif
 
 #include <algorithm>
@@ -77,12 +79,9 @@ static qsizetype rootLength(QStringView name, bool allowUncPaths)
 }
 
 //************* QDirPrivate
-QDirPrivate::QDirPrivate(const QString &path, const QStringList &nameFilters_, QDir::SortFlags sort_, QDir::Filters filters_)
-    : QSharedData()
-    , fileListsInitialized(false)
-    , nameFilters(nameFilters_)
-    , sort(sort_)
-    , filters(filters_)
+QDirPrivate::QDirPrivate(const QString &path, const QStringList &nameFilters_,
+                         QDir::SortFlags sort_, QDir::Filters filters_)
+    : QSharedData(), nameFilters(nameFilters_), sort(sort_), filters(filters_)
 {
     setPath(path.isEmpty() ? QString::fromLatin1(".") : path);
 
@@ -93,22 +92,31 @@ QDirPrivate::QDirPrivate(const QString &path, const QStringList &nameFilters_, Q
 }
 
 QDirPrivate::QDirPrivate(const QDirPrivate &copy)
-    : QSharedData(copy)
-    , fileListsInitialized(false)
-    , nameFilters(copy.nameFilters)
-    , sort(copy.sort)
-    , filters(copy.filters)
-    , dirEntry(copy.dirEntry)
-    , metaData(copy.metaData)
+    : QSharedData(copy),
+      // mutex is not copied
+      nameFilters(copy.nameFilters),
+      sort(copy.sort),
+      filters(copy.filters),
+      // fileEngine is not copied
+      dirEntry(copy.dirEntry)
 {
+    QMutexLocker locker(&copy.fileCache.mutex);
+    fileCache.fileListsInitialized = copy.fileCache.fileListsInitialized.load();
+    fileCache.files = copy.fileCache.files;
+    fileCache.fileInfos = copy.fileCache.fileInfos;
+    fileCache.absoluteDirEntry = copy.fileCache.absoluteDirEntry;
+    fileCache.metaData = copy.fileCache.metaData;
 }
 
 bool QDirPrivate::exists() const
 {
     if (!fileEngine) {
-        QFileSystemEngine::fillMetaData(dirEntry, metaData,
-                QFileSystemMetaData::ExistsAttribute | QFileSystemMetaData::DirectoryType); // always stat
-        return metaData.exists() && metaData.isDirectory();
+        QMutexLocker locker(&fileCache.mutex);
+        QFileSystemEngine::fillMetaData(
+                dirEntry, fileCache.metaData,
+                QFileSystemMetaData::ExistsAttribute
+                        | QFileSystemMetaData::DirectoryType); // always stat
+        return fileCache.metaData.exists() && fileCache.metaData.isDirectory();
     }
     const QAbstractFileEngine::FileFlags info =
         fileEngine->fileFlags(QAbstractFileEngine::DirectoryType
@@ -151,56 +159,89 @@ inline void QDirPrivate::setPath(const QString &path)
     ) {
             p.truncate(p.size() - 1);
     }
-
     dirEntry = QFileSystemEntry(p, QFileSystemEntry::FromInternalPath());
-    metaData.clear();
-    initFileEngine();
-    clearFileLists();
-    absoluteDirEntry = QFileSystemEntry();
+    clearCache(IncludingMetaData);
+    fileCache.absoluteDirEntry = QFileSystemEntry();
 }
 
-inline void QDirPrivate::clearFileLists()
+inline QString QDirPrivate::resolveAbsoluteEntry() const
 {
-    fileListsInitialized = false;
-    files.clear();
-    fileInfos.clear();
-}
+    QMutexLocker locker(&fileCache.mutex);
+    if (!fileCache.absoluteDirEntry.isEmpty())
+        return fileCache.absoluteDirEntry.filePath();
 
-inline void QDirPrivate::resolveAbsoluteEntry() const
-{
-    if (!absoluteDirEntry.isEmpty() || dirEntry.isEmpty())
-        return;
+    if (dirEntry.isEmpty())
+        return dirEntry.filePath();
 
     QString absoluteName;
     if (!fileEngine) {
         if (!dirEntry.isRelative() && dirEntry.isClean()) {
-            absoluteDirEntry = dirEntry;
-            return;
+            fileCache.absoluteDirEntry = dirEntry;
+            return dirEntry.filePath();
         }
 
         absoluteName = QFileSystemEngine::absoluteName(dirEntry).filePath();
     } else {
         absoluteName = fileEngine->fileName(QAbstractFileEngine::AbsoluteName);
     }
-
-    absoluteDirEntry = QFileSystemEntry(QDir::cleanPath(absoluteName), QFileSystemEntry::FromInternalPath());
+    auto absoluteFileSystemEntry =
+            QFileSystemEntry(QDir::cleanPath(absoluteName), QFileSystemEntry::FromInternalPath());
+    fileCache.absoluteDirEntry = absoluteFileSystemEntry;
+    return absoluteFileSystemEntry.filePath();
 }
 
 /* For sorting */
 struct QDirSortItem
 {
+    QDirSortItem() = default;
+    QDirSortItem(const QFileInfo &fi, QDir::SortFlags sort)
+        : item(fi)
+    {
+        // A dir e.g. "dirA.bar" doesn't have actually have an extension/suffix, when
+        // sorting by type such "suffix" should be ignored but that would complicate
+        // the code and uses can change the behavior by setting DirsFirst/DirsLast
+        if (sort.testAnyFlag(QDir::Type))
+            suffix_cache = item.suffix();
+    }
+
     mutable QString filename_cache;
-    mutable QString suffix_cache;
+    QString suffix_cache;
     QFileInfo item;
 };
 
-
 class QDirSortItemComparator
 {
     QDir::SortFlags qt_cmp_si_sort_flags;
+
+#ifndef QT_BOOTSTRAPPED
+    QCollator *collator = nullptr;
+#endif
 public:
-    QDirSortItemComparator(QDir::SortFlags flags) : qt_cmp_si_sort_flags(flags) {}
+#ifndef QT_BOOTSTRAPPED
+    QDirSortItemComparator(QDir::SortFlags flags, QCollator *coll = nullptr)
+        : qt_cmp_si_sort_flags(flags), collator(coll)
+    {
+        Q_ASSERT(!qt_cmp_si_sort_flags.testAnyFlag(QDir::LocaleAware) || collator);
+
+        if (collator && qt_cmp_si_sort_flags.testAnyFlag(QDir::IgnoreCase))
+            collator->setCaseSensitivity(Qt::CaseInsensitive);
+    }
+#else
+    QDirSortItemComparator(QDir::SortFlags flags)
+        : qt_cmp_si_sort_flags(flags)
+    {
+    }
+#endif
     bool operator()(const QDirSortItem &, const QDirSortItem &) const;
+
+    int compareStrings(const QString &a, const QString &b, Qt::CaseSensitivity cs) const
+    {
+#ifndef QT_BOOTSTRAPPED
+        if (collator)
+            return collator->compare(a, b);
+#endif
+        return a.compare(b, cs);
+    }
 };
 
 bool QDirSortItemComparator::operator()(const QDirSortItem &n1, const QDirSortItem &n2) const
@@ -213,43 +254,25 @@ bool QDirSortItemComparator::operator()(const QDirSortItem &n1, const QDirSortIt
     if ((qt_cmp_si_sort_flags & QDir::DirsLast) && (f1->item.isDir() != f2->item.isDir()))
         return !f1->item.isDir();
 
+    const bool ic = qt_cmp_si_sort_flags.testAnyFlag(QDir::IgnoreCase);
+    const auto qtcase = ic ? Qt::CaseInsensitive : Qt::CaseSensitive;
+
     qint64 r = 0;
     int sortBy = ((qt_cmp_si_sort_flags & QDir::SortByMask)
                  | (qt_cmp_si_sort_flags & QDir::Type)).toInt();
 
     switch (sortBy) {
       case QDir::Time: {
-        QDateTime firstModified = f1->item.lastModified();
-        QDateTime secondModified = f2->item.lastModified();
-
-        // QDateTime by default will do all sorts of conversions on these to
-        // find timezones, which is incredibly expensive. As we aren't
-        // presenting these to the user, we don't care (at all) about the
-        // local timezone, so force them to UTC to avoid that conversion.
-        firstModified.setTimeZone(QTimeZone::UTC);
-        secondModified.setTimeZone(QTimeZone::UTC);
-
+        const QDateTime firstModified = f1->item.lastModified(QTimeZone::UTC);
+        const QDateTime secondModified = f2->item.lastModified(QTimeZone::UTC);
         r = firstModified.msecsTo(secondModified);
         break;
       }
       case QDir::Size:
           r = f2->item.size() - f1->item.size();
         break;
-      case QDir::Type:
-      {
-        bool ic = qt_cmp_si_sort_flags.testAnyFlag(QDir::IgnoreCase);
-
-        if (f1->suffix_cache.isNull())
-            f1->suffix_cache = ic ? f1->item.suffix().toLower()
-                               : f1->item.suffix();
-        if (f2->suffix_cache.isNull())
-            f2->suffix_cache = ic ? f2->item.suffix().toLower()
-                               : f2->item.suffix();
-
-        r = qt_cmp_si_sort_flags & QDir::LocaleAware
-            ? f1->suffix_cache.localeAwareCompare(f2->suffix_cache)
-            : f1->suffix_cache.compare(f2->suffix_cache);
-      }
+    case QDir::Type:
+        r = compareStrings(f1->suffix_cache, f2->suffix_cache, qtcase);
         break;
       default:
         ;
@@ -257,18 +280,13 @@ bool QDirSortItemComparator::operator()(const QDirSortItem &n1, const QDirSortIt
 
     if (r == 0 && sortBy != QDir::Unsorted) {
         // Still not sorted - sort by name
-        bool ic = qt_cmp_si_sort_flags.testAnyFlag(QDir::IgnoreCase);
 
         if (f1->filename_cache.isNull())
-            f1->filename_cache = ic ? f1->item.fileName().toLower()
-                                    : f1->item.fileName();
+            f1->filename_cache = f1->item.fileName();
         if (f2->filename_cache.isNull())
-            f2->filename_cache = ic ? f2->item.fileName().toLower()
-                                    : f2->item.fileName();
+            f2->filename_cache = f2->item.fileName();
 
-        r = qt_cmp_si_sort_flags & QDir::LocaleAware
-            ? f1->filename_cache.localeAwareCompare(f2->filename_cache)
-            : f1->filename_cache.compare(f2->filename_cache);
+        r = compareStrings(f1->filename_cache, f2->filename_cache, qtcase);
     }
     if (qt_cmp_si_sort_flags & QDir::Reversed)
         return r > 0;
@@ -278,48 +296,75 @@ bool QDirSortItemComparator::operator()(const QDirSortItem &n1, const QDirSortIt
 inline void QDirPrivate::sortFileList(QDir::SortFlags sort, const QFileInfoList &l,
                                       QStringList *names, QFileInfoList *infos)
 {
-    // names and infos are always empty lists or 0 here
-    qsizetype n = l.size();
-    if (n > 0) {
-        if (n == 1 || (sort & QDir::SortByMask) == QDir::Unsorted) {
-            if (infos)
-                *infos = l;
-            if (names) {
-                for (const QFileInfo &fi : l)
-                    names->append(fi.fileName());
-            }
+    Q_ASSERT(names || infos);
+    Q_ASSERT(!infos || infos->isEmpty());
+    Q_ASSERT(!names || names->isEmpty());
+
+    const qsizetype n = l.size();
+    if (n == 0)
+        return;
+
+    if (n == 1 || (sort & QDir::SortByMask) == QDir::Unsorted) {
+        if (infos)
+            *infos = l;
+
+        if (names) {
+            for (const QFileInfo &fi : l)
+                names->append(fi.fileName());
+        }
+    } else {
+        QScopedArrayPointer<QDirSortItem> si(new QDirSortItem[n]);
+        for (qsizetype i = 0; i < n; ++i)
+            si[i] = QDirSortItem{l.at(i), sort};
+
+#ifndef QT_BOOTSTRAPPED
+    if (sort.testAnyFlag(QDir::LocaleAware)) {
+            QCollator coll;
+            std::sort(si.data(), si.data() + n, QDirSortItemComparator(sort, &coll));
         } else {
-            QScopedArrayPointer<QDirSortItem> si(new QDirSortItem[n]);
-            for (qsizetype i = 0; i < n; ++i)
-                si[i].item = l.at(i);
             std::sort(si.data(), si.data() + n, QDirSortItemComparator(sort));
-            // put them back in the list(s)
-            if (infos) {
-                for (qsizetype i = 0; i < n; ++i)
-                    infos->append(si[i].item);
-            }
+        }
+#else
+        std::sort(si.data(), si.data() + n, QDirSortItemComparator(sort));
+#endif // QT_BOOTSTRAPPED
+
+        // put them back in the list(s)
+        for (qsizetype i = 0; i < n; ++i) {
+            auto &fileInfo = si[i].item;
+            if (infos)
+                infos->append(fileInfo);
             if (names) {
-                for (qsizetype i = 0; i < n; ++i)
-                    names->append(si[i].item.fileName());
+                const bool cached = !si[i].filename_cache.isNull();
+                names->append(cached ? si[i].filename_cache : fileInfo.fileName());
             }
         }
     }
 }
+
 inline void QDirPrivate::initFileLists(const QDir &dir) const
 {
-    if (!fileListsInitialized) {
+    QMutexLocker locker(&fileCache.mutex);
+    if (!fileCache.fileListsInitialized) {
         QFileInfoList l;
         QDirIterator it(dir);
         while (it.hasNext())
             l.append(it.nextFileInfo());
-        sortFileList(sort, l, &files, &fileInfos);
-        fileListsInitialized = true;
+
+        sortFileList(sort, l, &fileCache.files, &fileCache.fileInfos);
+        fileCache.fileListsInitialized = true;
     }
 }
 
-inline void QDirPrivate::initFileEngine()
+inline void QDirPrivate::clearCache(MetaDataClearing mode)
 {
-    fileEngine.reset(QFileSystemEngine::resolveEntryAndCreateLegacyEngine(dirEntry, metaData));
+    QMutexLocker locker(&fileCache.mutex);
+    if (mode == IncludingMetaData)
+        fileCache.metaData.clear();
+    fileCache.fileListsInitialized = false;
+    fileCache.files.clear();
+    fileCache.fileInfos.clear();
+    fileEngine.reset(
+            QFileSystemEngine::resolveEntryAndCreateLegacyEngine(dirEntry, fileCache.metaData));
 }
 
 /*!
@@ -622,10 +667,8 @@ QString QDir::path() const
 QString QDir::absolutePath() const
 {
     Q_D(const QDir);
-    if (!d->fileEngine) {
-        d->resolveAbsoluteEntry();
-        return d->absoluteDirEntry.filePath();
-    }
+    if (!d->fileEngine)
+        return d->resolveAbsoluteEntry();
 
     return d->fileEngine->fileName(QAbstractFileEngine::AbsoluteName);
 }
@@ -650,7 +693,9 @@ QString QDir::canonicalPath() const
 {
     Q_D(const QDir);
     if (!d->fileEngine) {
-        QFileSystemEntry answer = QFileSystemEngine::canonicalName(d->dirEntry, d->metaData);
+        QMutexLocker locker(&d->fileCache.mutex);
+        QFileSystemEntry answer =
+                QFileSystemEngine::canonicalName(d->dirEntry, d->fileCache.metaData);
         return answer.filePath();
     }
     return d->fileEngine->fileName(QAbstractFileEngine::CanonicalName);
@@ -767,8 +812,7 @@ QString QDir::absoluteFilePath(const QString &fileName) const
         return fileName;
 
     Q_D(const QDir);
-    d->resolveAbsoluteEntry();
-    const QString absoluteDirPath = d->absoluteDirEntry.filePath();
+    QString absoluteDirPath = d->resolveAbsoluteEntry();
     if (fileName.isEmpty())
         return absoluteDirPath;
 #ifdef Q_OS_WIN
@@ -1027,9 +1071,7 @@ QStringList QDir::nameFilters() const
 void QDir::setNameFilters(const QStringList &nameFilters)
 {
     Q_D(QDir);
-    d->initFileEngine();
-    d->clearFileLists();
-
+    d->clearCache(QDirPrivate::KeepMetaData);
     d->nameFilters = nameFilters;
 }
 
@@ -1208,9 +1250,7 @@ QDir::Filters QDir::filter() const
 void QDir::setFilter(Filters filters)
 {
     Q_D(QDir);
-    d->initFileEngine();
-    d->clearFileLists();
-
+    d->clearCache(QDirPrivate::KeepMetaData);
     d->filters = filters;
 }
 
@@ -1265,9 +1305,7 @@ QDir::SortFlags QDir::sorting() const
 void QDir::setSorting(SortFlags sort)
 {
     Q_D(QDir);
-    d->initFileEngine();
-    d->clearFileLists();
-
+    d->clearCache(QDirPrivate::KeepMetaData);
     d->sort = sort;
 }
 
@@ -1285,7 +1323,7 @@ qsizetype QDir::count(QT6_IMPL_NEW_OVERLOAD) const
 {
     Q_D(const QDir);
     d->initFileLists(*this);
-    return d->files.size();
+    return d->fileCache.files.size();
 }
 
 /*!
@@ -1301,7 +1339,7 @@ QString QDir::operator[](qsizetype pos) const
 {
     Q_D(const QDir);
     d->initFileLists(*this);
-    return d->files[pos];
+    return d->fileCache.files[pos];
 }
 
 /*!
@@ -1378,17 +1416,29 @@ QStringList QDir::entryList(const QStringList &nameFilters, Filters filters,
     if (sort == NoSort)
         sort = d->sort;
 
+    const bool needsSorting = (sort & QDir::SortByMask) != QDir::Unsorted;
+
     if (filters == d->filters && sort == d->sort && nameFilters == d->nameFilters) {
-        d->initFileLists(*this);
-        return d->files;
+        // Don't fill a QFileInfo cache if we just need names
+        if (needsSorting || d->fileCache.fileListsInitialized) {
+            d->initFileLists(*this);
+            return d->fileCache.files;
+        }
     }
 
-    QFileInfoList l;
     QDirIterator it(d->dirEntry.filePath(), nameFilters, filters);
-    while (it.hasNext())
-        l.append(it.nextFileInfo());
     QStringList ret;
-    d->sortFileList(sort, l, &ret, nullptr);
+    if (needsSorting) {
+        QFileInfoList l;
+        while (it.hasNext())
+            l.append(it.nextFileInfo());
+        d->sortFileList(sort, l, &ret, nullptr);
+    } else {
+        while (it.hasNext()) {
+            it.next();
+            ret.append(it.fileName());
+        }
+    }
     return ret;
 }
 
@@ -1420,7 +1470,7 @@ QFileInfoList QDir::entryInfoList(const QStringList &nameFilters, Filters filter
 
     if (filters == d->filters && sort == d->sort && nameFilters == d->nameFilters) {
         d->initFileLists(*this);
-        return d->fileInfos;
+        return d->fileCache.fileInfos;
     }
 
     QFileInfoList l;
@@ -1635,10 +1685,12 @@ bool QDir::isReadable() const
     Q_D(const QDir);
 
     if (!d->fileEngine) {
-        if (!d->metaData.hasFlags(QFileSystemMetaData::UserReadPermission))
-            QFileSystemEngine::fillMetaData(d->dirEntry, d->metaData, QFileSystemMetaData::UserReadPermission);
-
-        return d->metaData.permissions().testAnyFlag(QFile::ReadUser);
+        QMutexLocker locker(&d->fileCache.mutex);
+        if (!d->fileCache.metaData.hasFlags(QFileSystemMetaData::UserReadPermission)) {
+            QFileSystemEngine::fillMetaData(d->dirEntry, d->fileCache.metaData,
+                                            QFileSystemMetaData::UserReadPermission);
+        }
+        return d->fileCache.metaData.permissions().testAnyFlag(QFile::ReadUser);
     }
 
     const QAbstractFileEngine::FileFlags info =
@@ -1745,9 +1797,9 @@ bool QDir::makeAbsolute()
         dir.reset(new QDirPrivate(*d_ptr.constData()));
         dir->setPath(absolutePath);
     } else { // native FS
-        d->resolveAbsoluteEntry();
+        QString absoluteFilePath = d->resolveAbsoluteEntry();
         dir.reset(new QDirPrivate(*d_ptr.constData()));
-        dir->setPath(d->absoluteDirEntry.filePath());
+        dir->setPath(absoluteFilePath);
     }
     d_ptr = dir.release(); // actually detach
     return true;
@@ -1798,9 +1850,9 @@ bool QDir::operator==(const QDir &dir) const
             if (dir.exists())
                 return false; //can't be equal if only one exists
             // Neither exists, compare absolute paths rather than canonical (which would be empty strings)
-            d->resolveAbsoluteEntry();
-            other->resolveAbsoluteEntry();
-            return d->absoluteDirEntry.filePath().compare(other->absoluteDirEntry.filePath(), sensitive) == 0;
+            QString thisFilePath = d->resolveAbsoluteEntry();
+            QString otherFilePath = other->resolveAbsoluteEntry();
+            return thisFilePath.compare(otherFilePath, sensitive) == 0;
         }
     }
     return false;
@@ -2365,9 +2417,7 @@ bool QDir::isRelativePath(const QString &path)
 void QDir::refresh() const
 {
     QDirPrivate *d = const_cast<QDir *>(this)->d_func();
-    d->metaData.clear();
-    d->initFileEngine();
-    d->clearFileLists();
+    d->clearCache(QDirPrivate::IncludingMetaData);
 }
 
 /*!
diff --git a/src/corelib/io/qdir_p.h b/src/corelib/io/qdir_p.h
index 9f6be858..7dce69c1 100644
--- a/src/corelib/io/qdir_p.h
+++ b/src/corelib/io/qdir_p.h
@@ -18,6 +18,8 @@
 #include "qfilesystementry_p.h"
 #include "qfilesystemmetadata_p.h"
 
+#include <QtCore/qmutex.h>
+
 #include <memory>
 
 QT_BEGIN_NAMESPACE
@@ -37,11 +39,10 @@ public:
                          QDir::SortFlags sort_ = QDir::SortFlags(QDir::Name | QDir::IgnoreCase),
                          QDir::Filters filters_ = QDir::AllEntries);
 
-    explicit QDirPrivate(const QDirPrivate &copy);
+    explicit QDirPrivate(const QDirPrivate &copy); // Copies everything except mutex and fileEngine
 
     bool exists() const;
 
-    void initFileEngine();
     void initFileLists(const QDir &dir) const;
 
     static void sortFileList(QDir::SortFlags, const QFileInfoList &, QStringList *, QFileInfoList *);
@@ -52,13 +53,10 @@ public:
 
     void setPath(const QString &path);
 
-    void clearFileLists();
+    enum MetaDataClearing { KeepMetaData, IncludingMetaData };
+    void clearCache(MetaDataClearing mode);
 
-    void resolveAbsoluteEntry() const;
-
-    mutable bool fileListsInitialized;
-    mutable QStringList files;
-    mutable QFileInfoList fileInfos;
+    QString resolveAbsoluteEntry() const;
 
     QStringList nameFilters;
     QDir::SortFlags sort;
@@ -67,8 +65,17 @@ public:
     std::unique_ptr<QAbstractFileEngine> fileEngine;
 
     QFileSystemEntry dirEntry;
-    mutable QFileSystemEntry absoluteDirEntry;
-    mutable QFileSystemMetaData metaData;
+
+    struct FileCache
+    {
+        QMutex mutex;
+        QStringList files;
+        QFileInfoList fileInfos;
+        std::atomic<bool> fileListsInitialized = false;
+        QFileSystemEntry absoluteDirEntry;
+        QFileSystemMetaData metaData;
+    };
+    mutable FileCache fileCache;
 };
 
 Q_DECLARE_OPERATORS_FOR_FLAGS(QDirPrivate::PathNormalizations)
diff --git a/src/corelib/io/qfile.h b/src/corelib/io/qfile.h
index 3ac67954..839a2b51 100644
--- a/src/corelib/io/qfile.h
+++ b/src/corelib/io/qfile.h
@@ -26,6 +26,34 @@ namespace std {
 
 QT_BEGIN_NAMESPACE
 
+#ifdef Q_OS_WIN
+
+#if QT_DEPRECATED_SINCE(6,6)
+QT_DEPRECATED_VERSION_X_6_6("Use QNtfsPermissionCheckGuard RAII class instead.")
+Q_CORE_EXPORT extern int qt_ntfs_permission_lookup;      // defined in qfilesystemengine_win.cpp
+#endif
+
+Q_CORE_EXPORT bool qEnableNtfsPermissionChecks() noexcept;
+Q_CORE_EXPORT bool qDisableNtfsPermissionChecks() noexcept;
+Q_CORE_EXPORT bool qAreNtfsPermissionChecksEnabled() noexcept;
+
+class QNtfsPermissionCheckGuard
+{
+    Q_DISABLE_COPY_MOVE(QNtfsPermissionCheckGuard)
+public:
+    Q_NODISCARD_CTOR
+    QNtfsPermissionCheckGuard()
+    {
+        qEnableNtfsPermissionChecks();
+    }
+
+    ~QNtfsPermissionCheckGuard()
+    {
+        qDisableNtfsPermissionChecks();
+    }
+};
+#endif // Q_OS_WIN
+
 #if QT_CONFIG(cxx17_filesystem)
 namespace QtPrivate {
 inline QString fromFilesystemPath(const std::filesystem::path &path)
diff --git a/src/corelib/io/qfiledevice.cpp b/src/corelib/io/qfiledevice.cpp
index 6c790e9d..092b09ae 100644
--- a/src/corelib/io/qfiledevice.cpp
+++ b/src/corelib/io/qfiledevice.cpp
@@ -114,6 +114,20 @@ void QFileDevicePrivate::setError(QFileDevice::FileError err, int errNum)
     to increment or decrement \c qt_ntfs_permission_lookup before any
     threads other than the main thread have started or after every thread
     other than the main thread has ended.
+
+    \note From Qt 6.6 the variable \c qt_ntfs_permission_lookup is
+    deprecated. Please use the following alternatives.
+
+    The safe and easy way to manage permission checks is to use the RAII class
+    \c QNtfsPermissionCheckGuard.
+
+    \snippet ntfsp.cpp raii
+
+    If you need more fine-grained control, it is possible to manage the permission
+    with the following functions instead:
+
+    \snippet ntfsp.cpp free-funcs
+
 */
 
 //************* QFileDevice
diff --git a/src/corelib/io/qfileinfo.cpp b/src/corelib/io/qfileinfo.cpp
index 1fbd1e57..ee0b2bcc 100644
--- a/src/corelib/io/qfileinfo.cpp
+++ b/src/corelib/io/qfileinfo.cpp
@@ -38,6 +38,9 @@ QString QFileInfoPrivate::getFileName(QAbstractFileEngine::FileName name) const
             case QAbstractFileEngine::AbsoluteLinkTarget:
                 ret = QFileSystemEngine::getLinkTarget(fileEntry, metaData).filePath();
                 break;
+            case QAbstractFileEngine::RawLinkPath:
+                ret = QFileSystemEngine::getRawLinkPath(fileEntry, metaData).filePath();
+                break;
             case QAbstractFileEngine::JunctionName:
                 ret = QFileSystemEngine::getJunctionTarget(fileEntry, metaData).filePath();
                 break;
@@ -223,6 +226,25 @@ QDateTime &QFileInfoPrivate::getFileTime(QAbstractFileEngine::FileTime request)
     isSymLink(). The symLinkTarget() function provides the name of the file
     the symlink points to.
 
+    Elements of the file's name can be extracted with path() and
+    fileName(). The fileName()'s parts can be extracted with
+    baseName(), suffix() or completeSuffix(). QFileInfo objects to
+    directories created by Qt classes will not have a trailing file
+    separator. If you wish to use trailing separators in your own file
+    info objects, just append one to the file name given to the constructors
+    or setFile().
+
+    Date and time related information are returned by birthTime(), fileTime(),
+    lastModified(), lastRead(), and metadataChangeTime().
+    Information about
+    access permissions can be obtained with isReadable(), isWritable(), and
+    isExecutable(). Ownership information can be obtained with
+    owner(), ownerId(), group(), and groupId(). You can also examine
+    permissions and ownership in a single statement using the permission()
+    function.
+
+    \section1 Symbolic Links and Shortcuts
+
     On Unix (including \macos and iOS), the property getter functions in this
     class return the properties such as times and size of the target file, not
     the symlink, because Unix handles symlinks transparently. Opening a symlink
@@ -238,23 +260,9 @@ QDateTime &QFileInfoPrivate::getFileTime(QAbstractFileEngine::FileTime request)
 
     \snippet code/src_corelib_io_qfileinfo.cpp 1
 
-    Elements of the file's name can be extracted with path() and
-    fileName(). The fileName()'s parts can be extracted with
-    baseName(), suffix() or completeSuffix(). QFileInfo objects to
-    directories created by Qt classes will not have a trailing file
-    separator. If you wish to use trailing separators in your own file
-    info objects, just append one to the file name given to the constructors
-    or setFile().
+    \section1 NTFS permissions
 
-    The file's dates are returned by birthTime(), lastModified(), lastRead() and
-    fileTime(). Information about the file's access permissions is
-    obtained with isReadable(), isWritable() and isExecutable(). The
-    file's ownership is available from owner(), ownerId(), group() and
-    groupId(). You can examine a file's permissions and ownership in a
-    single statement using the permission() function.
-
-    \target NTFS permissions
-    \note On NTFS file systems, ownership and permissions checking is
+    On NTFS file systems, ownership and permissions checking is
     disabled by default for performance reasons. To enable it,
     include the following line:
 
@@ -270,7 +278,20 @@ QDateTime &QFileInfoPrivate::getFileTime(QAbstractFileEngine::FileTime request)
     threads other than the main thread have started or after every thread
     other than the main thread has ended.
 
-    \section1 Performance Issues
+    \note From Qt 6.6 the variable \c qt_ntfs_permission_lookup is
+    deprecated. Please use the following alternatives.
+
+    The safe and easy way to manage permission checks is to use the RAII class
+    \c QNtfsPermissionCheckGuard.
+
+    \snippet ntfsp.cpp raii
+
+    If you need more fine-grained control, it is possible to manage the permission
+    with the following functions instead:
+
+    \snippet ntfsp.cpp free-funcs
+
+    \section1 Performance Considerations
 
     Some of QFileInfo's functions query the file system, but for
     performance reasons, some functions only operate on the
@@ -279,10 +300,8 @@ QDateTime &QFileInfoPrivate::getFileTime(QAbstractFileEngine::FileTime request)
     The path() function, however, can work on the file name directly,
     and so it is faster.
 
-    \note To speed up performance, QFileInfo caches information about
-    the file.
-
-    Because files can be changed by other users or programs, or
+    To speed up performance, QFileInfo also caches information about
+    the file. Because files can be changed by other users or programs, or
     even by other parts of the same program, there is a function that
     refreshes the file information: refresh(). If you want to switch
     off a QFileInfo's caching and force it to access the file system
@@ -290,6 +309,12 @@ QDateTime &QFileInfoPrivate::getFileTime(QAbstractFileEngine::FileTime request)
     If you want to make sure that all information is read from the
     file system, use stat().
 
+    \l{birthTime()}, \l{fileTime()}, \l{lastModified()}, \l{lastRead()},
+    and \l{metadataChangeTime()} return times in \e{local time} by default.
+    Since native file system API typically uses UTC, this requires a conversion.
+    If you don't actually need the local time, you can avoid this by requesting
+    the time in QTimeZone::UTC directly.
+
     \section1 Platform Specific Issues
 
     \include android-content-uri-limitations.qdocinc
@@ -1001,7 +1026,8 @@ bool QFileInfo::isNativePath() const
 /*!
     Returns \c true if this object points to a file or to a symbolic
     link to a file. Returns \c false if the
-    object points to something which isn't a file, such as a directory.
+    object points to something that is not a file (such as a directory)
+    or that does not exist.
 
     If the file is a symlink, this function returns true if the target is a
     regular file (not the symlink).
@@ -1019,7 +1045,9 @@ bool QFileInfo::isFile() const
 
 /*!
     Returns \c true if this object points to a directory or to a symbolic
-    link to a directory; otherwise returns \c false.
+    link to a directory. Returns \c false if the
+    object points to something that is not a directory (such as a file)
+    or that does not exist.
 
     If the file is a symlink, this function returns true if the target is a
     directory (not the symlink).
@@ -1235,6 +1263,25 @@ QString QFileInfo::symLinkTarget() const
     return d->getFileName(QAbstractFileEngine::AbsoluteLinkTarget);
 }
 
+/*!
+    \since 6.6
+    Read the path the symlink references.
+
+    Returns the raw path referenced by the symbolic link, without resolving a relative
+    path relative to the directory containing the symbolic link. The returned string will
+    only be an absolute path if the symbolic link actually references it as such. Returns
+    an empty string if the object is not a symbolic link.
+
+    \sa symLinkTarget(), exists(), isSymLink(), isDir(), isFile()
+*/
+QString QFileInfo::readSymLink() const
+{
+    Q_D(const QFileInfo);
+    if (d->isDefaultConstructed)
+        return {};
+    return d->getFileName(QAbstractFileEngine::RawLinkPath);
+}
+
 /*!
     \since 6.2
 
@@ -1421,8 +1468,26 @@ qint64 QFileInfo::size() const
 
 /*!
     \fn QDateTime QFileInfo::birthTime() const
+
+    Returns the date and time when the file was created (born), in local time.
+
+    If the file birth time is not available, this function returns an invalid QDateTime.
+
+    If the file is a symlink, the time of the target file is returned (not the symlink).
+
+    This function overloads QFileInfo::birthTime(const QTimeZone &tz), and
+    returns the same as \c{birthTime(QTimeZone::LocalTime)}.
+
     \since 5.10
-    Returns the date and time when the file was created / born.
+    \sa lastModified(), lastRead(), metadataChangeTime(), fileTime()
+*/
+
+/*!
+    \fn QDateTime QFileInfo::birthTime(const QTimeZone &tz) const
+
+    Returns the date and time when the file was created (born).
+
+    \include qfileinfo.cpp file-times-in-time-zone
 
     If the file birth time is not available, this function returns an invalid
     QDateTime.
@@ -1430,60 +1495,151 @@ qint64 QFileInfo::size() const
     If the file is a symlink, the time of the target file is returned
     (not the symlink).
 
-    \sa lastModified(), lastRead(), metadataChangeTime()
+    \since 6.6
+    \sa lastModified(const QTimeZone &), lastRead(const QTimeZone &), metadataChangeTime(const QTimeZone &), fileTime(QFile::FileTime, const QTimeZone &)
 */
 
 /*!
     \fn QDateTime QFileInfo::metadataChangeTime() const
-    \since 5.10
-    Returns the date and time when the file metadata was changed. A metadata
-    change occurs when the file is created, but it also occurs whenever the
-    user writes or sets inode information (for example, changing the file
-    permissions).
+
+    Returns the date and time when the file's metadata was last changed,
+    in local time.
+
+    A metadata change occurs when the file is first created, but it also
+    occurs whenever the user writes or sets inode information (for example,
+    changing the file permissions).
 
     If the file is a symlink, the time of the target file is returned
     (not the symlink).
 
-    \sa lastModified(), lastRead()
+    This function overloads QFileInfo::metadataChangeTime(const QTimeZone &tz),
+    and returns the same as \c{metadataChangeTime(QTimeZone::LocalTime)}.
+
+    \since 5.10
+    \sa birthTime(), lastModified(), lastRead(), fileTime()
+*/
+
+/*!
+    \fn QDateTime QFileInfo::metadataChangeTime(const QTimeZone &tz) const
+
+    Returns the date and time when the file's metadata was last changed.
+    A metadata change occurs when the file is first created, but it also
+    occurs whenever the user writes or sets inode information (for example,
+    changing the file permissions).
+
+    \include qfileinfo.cpp file-times-in-time-zone
+
+    If the file is a symlink, the time of the target file is returned
+    (not the symlink).
+
+    \since 6.6
+    \sa birthTime(const QTimeZone &), lastModified(const QTimeZone &), lastRead(const QTimeZone &),
+    fileTime(QFile::FileTime time, const QTimeZone &)
 */
 
 /*!
     \fn QDateTime QFileInfo::lastModified() const
 
-    Returns the date and local time when the file was last modified.
+    Returns the date and time when the file was last modified.
 
     If the file is a symlink, the time of the target file is returned
     (not the symlink).
 
+    This function overloads \l{QFileInfo::lastModified(const QTimeZone &)},
+    and returns the same as \c{lastModified(QTimeZone::LocalTime)}.
+
     \sa birthTime(), lastRead(), metadataChangeTime(), fileTime()
 */
 
 /*!
-    \fn QDateTime QFileInfo::lastRead() const
+    \fn QDateTime QFileInfo::lastModified(const QTimeZone &tz) const
 
-    Returns the date and local time when the file was last read (accessed).
+    Returns the date and time when the file was last modified.
 
-    On platforms where this information is not available, returns the
-    same as lastModified().
+    \include qfileinfo.cpp file-times-in-time-zone
 
     If the file is a symlink, the time of the target file is returned
     (not the symlink).
 
+    \since 6.6
+    \sa birthTime(const QTimeZone &), lastRead(const QTimeZone &), metadataChangeTime(const QTimeZone &), fileTime(QFile::FileTime, const QTimeZone &)
+*/
+
+/*!
+    \fn QDateTime QFileInfo::lastRead() const
+
+    Returns the date and time when the file was last read (accessed).
+
+    On platforms where this information is not available, returns the same
+    time as lastModified().
+
+    If the file is a symlink, the time of the target file is returned
+    (not the symlink).
+
+    This function overloads \l{QFileInfo::lastRead(const QTimeZone &)},
+    and returns the same as \c{lastRead(QTimeZone::LocalTime)}.
+
     \sa birthTime(), lastModified(), metadataChangeTime(), fileTime()
 */
 
 /*!
-    \since 5.10
+    \fn QDateTime QFileInfo::lastRead(const QTimeZone &tz) const
 
-    Returns the file time specified by \a time. If the time cannot be
-    determined, an invalid date time is returned.
+    Returns the date and time when the file was last read (accessed).
+
+    \include qfileinfo.cpp file-times-in-time-zone
+
+    On platforms where this information is not available, returns the same
+    time as lastModified().
 
     If the file is a symlink, the time of the target file is returned
     (not the symlink).
 
-    \sa QFile::FileTime, QDateTime::isValid()
+    \since 6.6
+    \sa birthTime(const QTimeZone &), lastModified(const QTimeZone &), metadataChangeTime(const QTimeZone &), fileTime(QFile::FileTime, const QTimeZone &)
 */
-QDateTime QFileInfo::fileTime(QFile::FileTime time) const
+
+#if QT_VERSION < QT_VERSION_CHECK(7, 0, 0) && !defined(QT_BOOTSTRAPPED)
+/*!
+    Returns the file time specified by \a time.
+
+    If the time cannot be determined, an invalid date time is returned.
+
+    If the file is a symlink, the time of the target file is returned
+    (not the symlink).
+
+    This function overloads
+    \l{QFileInfo::fileTime(QFile::FileTime, const QTimeZone &)},
+    and returns the same as \c{fileTime(time, QTimeZone::LocalTime)}.
+
+    \since 5.10
+    \sa birthTime(), lastModified(), lastRead(), metadataChangeTime()
+*/
+QDateTime QFileInfo::fileTime(QFile::FileTime time) const {
+    return fileTime(time, QTimeZone::LocalTime);
+}
+#endif
+
+/*!
+    Returns the file time specified by \a time.
+
+//! [file-times-in-time-zone]
+    The returned time is in the time zone specified by \a tz. For example,
+    you can use QTimeZone::LocalTime or QTimeZone::UTC to get the time in
+    the Local time zone or UTC, respectively. Since native file system API
+    typically uses UTC, using QTimeZone::UTC is often faster, as it does not
+    require any conversions.
+//! [file-times-in-time-zone]
+
+    If the time cannot be determined, an invalid date time is returned.
+
+    If the file is a symlink, the time of the target file is returned
+    (not the symlink).
+
+    \since 6.6
+    \sa birthTime(const QTimeZone &), lastModified(const QTimeZone &), lastRead(const QTimeZone &), metadataChangeTime(const QTimeZone &), QDateTime::isValid()
+*/
+QDateTime QFileInfo::fileTime(QFile::FileTime time, const QTimeZone &tz) const
 {
     static_assert(int(QFile::FileAccessTime) == int(QAbstractFileEngine::AccessTime));
     static_assert(int(QFile::FileBirthTime) == int(QAbstractFileEngine::BirthTime));
@@ -1508,10 +1664,10 @@ QDateTime QFileInfo::fileTime(QFile::FileTime time) const
         break;
     }
 
-    return d->checkAttribute<QDateTime>(
-                flag,
-                [=]() { return d->metaData.fileTime(fetime).toLocalTime(); },
-                [=]() { return d->getFileTime(fetime).toLocalTime(); });
+    auto fsLambda = [d, fetime]() { return d->metaData.fileTime(fetime); };
+    auto engineLambda = [d, fetime]() { return d->getFileTime(fetime); };
+    const QDateTime dt = d->checkAttribute<QDateTime>(flag, fsLambda, engineLambda);
+    return dt.toTimeZone(tz);
 }
 
 /*!
@@ -1663,6 +1819,13 @@ QDebug operator<<(QDebug dbg, const QFileInfo &fi)
     Returns symLinkTarget() as a \c{std::filesystem::path}.
     \sa symLinkTarget()
 */
+/*!
+    \fn std::filesystem::path QFileInfo::filesystemReadSymLink() const
+    \since 6.6
+
+    Returns readSymLink() as a \c{std::filesystem::path}.
+    \sa readSymLink()
+*/
 /*!
     \fn std::filesystem::path QFileInfo::filesystemJunctionTarget() const
     \since 6.2
diff --git a/src/corelib/io/qfileinfo.h b/src/corelib/io/qfileinfo.h
index d0ec231f..15a119cb 100644
--- a/src/corelib/io/qfileinfo.h
+++ b/src/corelib/io/qfileinfo.h
@@ -9,6 +9,7 @@
 #include <QtCore/qshareddata.h>
 #include <QtCore/qmetatype.h>
 #include <QtCore/qdatetime.h>
+#include <QtCore/qtimezone.h>
 
 QT_BEGIN_NAMESPACE
 
@@ -126,12 +127,16 @@ public:
     bool isBundle() const;
 
     QString symLinkTarget() const;
+    QString readSymLink() const;
     QString junctionTarget() const;
 
 #if QT_CONFIG(cxx17_filesystem) || defined(Q_QDOC)
     std::filesystem::path filesystemSymLinkTarget() const
     { return QtPrivate::toFilesystemPath(symLinkTarget()); }
 
+    std::filesystem::path filesystemReadSymLink() const
+    { return QtPrivate::toFilesystemPath(readSymLink()); }
+
     std::filesystem::path filesystemJunctionTarget() const
     { return QtPrivate::toFilesystemPath(junctionTarget()); }
 #endif // QT_CONFIG(cxx17_filesystem)
@@ -152,6 +157,12 @@ public:
     QDateTime lastRead() const { return fileTime(QFile::FileAccessTime); }
     QDateTime fileTime(QFile::FileTime time) const;
 
+    QDateTime birthTime(const QTimeZone &tz) const { return fileTime(QFile::FileBirthTime, tz); }
+    QDateTime metadataChangeTime(const QTimeZone &tz) const { return fileTime(QFile::FileMetadataChangeTime, tz); }
+    QDateTime lastModified(const QTimeZone &tz) const { return fileTime(QFile::FileModificationTime, tz); }
+    QDateTime lastRead(const QTimeZone &tz) const { return fileTime(QFile::FileAccessTime, tz); }
+    QDateTime fileTime(QFile::FileTime time, const QTimeZone &tz) const;
+
     bool caching() const;
     void setCaching(bool on);
     void stat();
diff --git a/src/corelib/io/qfilesystemengine_p.h b/src/corelib/io/qfilesystemengine_p.h
index c54efa7f..c1dddb2e 100644
--- a/src/corelib/io/qfilesystemengine_p.h
+++ b/src/corelib/io/qfilesystemengine_p.h
@@ -67,6 +67,8 @@ public:
     }
 
     static QFileSystemEntry getLinkTarget(const QFileSystemEntry &link, QFileSystemMetaData &data);
+    static QFileSystemEntry getRawLinkPath(const QFileSystemEntry &link,
+                                           QFileSystemMetaData &data);
     static QFileSystemEntry getJunctionTarget(const QFileSystemEntry &link, QFileSystemMetaData &data);
     static QFileSystemEntry canonicalName(const QFileSystemEntry &entry, QFileSystemMetaData &data);
     static QFileSystemEntry absoluteName(const QFileSystemEntry &entry);
diff --git a/src/corelib/io/qfilesystemengine_unix.cpp b/src/corelib/io/qfilesystemengine_unix.cpp
index 277e10d8..d94cd452 100644
--- a/src/corelib/io/qfilesystemengine_unix.cpp
+++ b/src/corelib/io/qfilesystemengine_unix.cpp
@@ -23,6 +23,7 @@
 #include <stdio.h>
 #include <errno.h>
 
+#include <chrono>
 #include <memory> // for std::unique_ptr
 
 #if __has_include(<paths.h>)
@@ -32,7 +33,7 @@
 # define _PATH_TMP          "/tmp"
 #endif
 
-#if defined(Q_OS_MAC)
+#if defined(Q_OS_DARWIN)
 # include <QtCore/private/qcore_mac_p.h>
 # include <CoreFoundation/CFBundle.h>
 #endif
@@ -160,16 +161,39 @@ static bool isPackage(const QFileSystemMetaData &data, const QFileSystemEntry &e
 
 namespace {
 namespace GetFileTimes {
-qint64 timespecToMSecs(const timespec &spec)
+qint64 time_t_toMsecs(time_t t)
 {
-    return (qint64(spec.tv_sec) * 1000) + (spec.tv_nsec / 1000000);
+    using namespace std::chrono;
+    return milliseconds{seconds{t}}.count();
 }
 
 // fallback set
-[[maybe_unused]] qint64 atime(const QT_STATBUF &statBuffer, ulong) { return qint64(statBuffer.st_atime) * 1000; }
-[[maybe_unused]] qint64 birthtime(const QT_STATBUF &, ulong)       { return Q_INT64_C(0); }
-[[maybe_unused]] qint64 ctime(const QT_STATBUF &statBuffer, ulong) { return qint64(statBuffer.st_ctime) * 1000; }
-[[maybe_unused]] qint64 mtime(const QT_STATBUF &statBuffer, ulong) { return qint64(statBuffer.st_mtime) * 1000; }
+[[maybe_unused]] qint64 atime(const QT_STATBUF &statBuffer, ulong)
+{
+    return time_t_toMsecs(statBuffer.st_atime);
+}
+[[maybe_unused]] qint64 birthtime(const QT_STATBUF &, ulong)
+{
+    return Q_INT64_C(0);
+}
+[[maybe_unused]] qint64 ctime(const QT_STATBUF &statBuffer, ulong)
+{
+    return time_t_toMsecs(statBuffer.st_ctime);
+}
+[[maybe_unused]] qint64 mtime(const QT_STATBUF &statBuffer, ulong)
+{
+    return time_t_toMsecs(statBuffer.st_mtime);
+}
+
+// T is either a stat.timespec or statx.statx_timestamp,
+// both have tv_sec and tv_nsec members
+template<typename T>
+qint64 timespecToMSecs(const T &spec)
+{
+    using namespace std::chrono;
+    const nanoseconds nsecs = seconds{spec.tv_sec} + nanoseconds{spec.tv_nsec};
+    return duration_cast<milliseconds>(nsecs).count();
+}
 
 // Xtim, POSIX.1-2008
 template <typename T>
@@ -304,17 +328,12 @@ inline void QFileSystemMetaData::fillFromStatxBuf(const struct statx &statxBuffe
     size_ = qint64(statxBuffer.stx_size);
 
     // Times
-    auto toMSecs = [](struct statx_timestamp ts)
-    {
-        return qint64(ts.tv_sec) * 1000 + (ts.tv_nsec / 1000000);
-    };
-    accessTime_ = toMSecs(statxBuffer.stx_atime);
-    metadataChangeTime_ = toMSecs(statxBuffer.stx_ctime);
-    modificationTime_ = toMSecs(statxBuffer.stx_mtime);
-    if (statxBuffer.stx_mask & STATX_BTIME)
-        birthTime_ = toMSecs(statxBuffer.stx_btime);
-    else
-        birthTime_ = 0;
+    using namespace GetFileTimes;
+    accessTime_ = timespecToMSecs(statxBuffer.stx_atime);
+    metadataChangeTime_ = timespecToMSecs(statxBuffer.stx_ctime);
+    modificationTime_ = timespecToMSecs(statxBuffer.stx_mtime);
+    const bool birthMask = statxBuffer.stx_mask & STATX_BTIME;
+    birthTime_ = birthMask ? timespecToMSecs(statxBuffer.stx_btime) : 0;
 
     userId_ = statxBuffer.stx_uid;
     groupId_ = statxBuffer.stx_gid;
@@ -610,12 +629,22 @@ QFileSystemEntry QFileSystemEngine::getLinkTarget(const QFileSystemEntry &link,
     return QFileSystemEntry();
 }
 
+//static
+QFileSystemEntry QFileSystemEngine::getRawLinkPath(const QFileSystemEntry &link,
+                                                   QFileSystemMetaData &data)
+{
+    Q_UNUSED(data)
+    const QByteArray path = qt_readlink(link.nativeFilePath().constData());
+    const QString ret = QFile::decodeName(path);
+    return QFileSystemEntry(ret);
+}
+
 //static
 QFileSystemEntry QFileSystemEngine::canonicalName(const QFileSystemEntry &entry, QFileSystemMetaData &data)
 {
     Q_CHECK_FILE_NAME(entry, entry);
 
-#if !defined(Q_OS_MAC) && !defined(Q_OS_QNX) && !defined(Q_OS_ANDROID) && !defined(Q_OS_HAIKU) && _POSIX_VERSION < 200809L
+#if !defined(Q_OS_DARWIN) && !defined(Q_OS_QNX) && !defined(Q_OS_ANDROID) && !defined(Q_OS_HAIKU) && _POSIX_VERSION < 200809L
     // realpath(X,0) is not supported
     Q_UNUSED(data);
     return QFileSystemEntry(slowCanonicalized(absoluteName(entry).filePath()));
@@ -735,7 +764,7 @@ QByteArray QFileSystemEngine::id(int fd)
 QString QFileSystemEngine::resolveUserName(uint userId)
 {
 #if QT_CONFIG(thread) && defined(_POSIX_THREAD_SAFE_FUNCTIONS) && !defined(Q_OS_OPENBSD)
-    int size_max = sysconf(_SC_GETPW_R_SIZE_MAX);
+    long size_max = sysconf(_SC_GETPW_R_SIZE_MAX);
     if (size_max == -1)
         size_max = 1024;
     QVarLengthArray<char, 1024> buf(size_max);
@@ -761,7 +790,7 @@ QString QFileSystemEngine::resolveUserName(uint userId)
 QString QFileSystemEngine::resolveGroupName(uint groupId)
 {
 #if QT_CONFIG(thread) && defined(_POSIX_THREAD_SAFE_FUNCTIONS) && !defined(Q_OS_OPENBSD)
-    int size_max = sysconf(_SC_GETPW_R_SIZE_MAX);
+    long size_max = sysconf(_SC_GETPW_R_SIZE_MAX);
     if (size_max == -1)
         size_max = 1024;
     QVarLengthArray<char, 1024> buf(size_max);
@@ -777,7 +806,7 @@ QString QFileSystemEngine::resolveGroupName(uint groupId)
     struct group entry;
     // Some large systems have more members than the POSIX max size
     // Loop over by doubling the buffer size (upper limit 250k)
-    for (unsigned size = size_max; size < 256000; size += size)
+    for (long size = size_max; size < 256000; size += size)
     {
         buf.resize(size);
         // ERANGE indicates that the buffer was too small
@@ -1075,7 +1104,7 @@ static bool createDirectoryWithParents(const QByteArray &nativeName, mode_t mode
         return false;
 
     // mkdir failed because the parent dir doesn't exist, so try to create it
-    int slash = nativeName.lastIndexOf('/');
+    qsizetype slash = nativeName.lastIndexOf('/');
     if (slash < 1)
         return false;
 
@@ -1118,7 +1147,7 @@ bool QFileSystemEngine::removeDirectory(const QFileSystemEntry &entry, bool remo
 
     if (removeEmptyParents) {
         QString dirName = QDir::cleanPath(entry.filePath());
-        for (int oldslash = 0, slash=dirName.size(); slash > 0; oldslash = slash) {
+        for (qsizetype oldslash = 0, slash=dirName.size(); slash > 0; oldslash = slash) {
             const QByteArray chunk = QFile::encodeName(dirName.left(slash));
             QT_STATBUF st;
             if (QT_STAT(chunk.constData(), &st) != -1) {
@@ -1523,19 +1552,13 @@ bool QFileSystemEngine::setFileTime(int fd, const QDateTime &newDate, QAbstractF
     }
 
 #if QT_CONFIG(futimens)
-    struct timespec ts[2];
+    // UTIME_OMIT: leave file timestamp unchanged
+    struct timespec ts[2] = {{0, UTIME_OMIT}, {0, UTIME_OMIT}};
 
-    ts[0].tv_sec = ts[1].tv_sec = 0;
-    ts[0].tv_nsec = ts[1].tv_nsec = UTIME_OMIT;
-
-    const qint64 msecs = newDate.toMSecsSinceEpoch();
-
-    if (time == QAbstractFileEngine::AccessTime) {
-        ts[0].tv_sec = msecs / 1000;
-        ts[0].tv_nsec = (msecs % 1000) * 1000000;
-    } else if (time == QAbstractFileEngine::ModificationTime) {
-        ts[1].tv_sec = msecs / 1000;
-        ts[1].tv_nsec = (msecs % 1000) * 1000000;
+    if (time == QAbstractFileEngine::AccessTime || time == QAbstractFileEngine::ModificationTime) {
+        const int idx = time == QAbstractFileEngine::AccessTime ? 0 : 1;
+        const std::chrono::milliseconds msecs{newDate.toMSecsSinceEpoch()};
+        ts[idx] = durationToTimespec(msecs);
     }
 
     if (futimens(fd, ts) == -1) {
diff --git a/src/corelib/io/qfilesystemengine_win.cpp b/src/corelib/io/qfilesystemengine_win.cpp
index 6d085d98..49f375c4 100644
--- a/src/corelib/io/qfilesystemengine_win.cpp
+++ b/src/corelib/io/qfilesystemengine_win.cpp
@@ -381,8 +381,54 @@ constexpr QFileDevice::Permissions toSpecificPermissions(PermissionTag tag,
 } // anonymous namespace
 #endif // QT_CONFIG(fslibs)
 
+#if QT_DEPRECATED_SINCE(6,6)
+int qt_ntfs_permission_lookup = 0;
+#endif
 
-Q_CORE_EXPORT int qt_ntfs_permission_lookup = 0;
+static QBasicAtomicInt qt_ntfs_permission_lookup_v2 = Q_BASIC_ATOMIC_INITIALIZER(0);
+
+QT_WARNING_PUSH
+QT_WARNING_DISABLE_DEPRECATED
+
+/*!
+    \internal
+
+    Returns true if the check was previously enabled.
+*/
+
+bool qEnableNtfsPermissionChecks() noexcept
+{
+    return qt_ntfs_permission_lookup_v2.fetchAndAddRelaxed(1)
+QT_IF_DEPRECATED_SINCE(6, 6, /*nothing*/, + qt_ntfs_permission_lookup)
+        != 0;
+}
+
+/*!
+    \internal
+
+    Returns true if the check is disabled, i.e. there are no more users.
+*/
+
+bool qDisableNtfsPermissionChecks() noexcept
+{
+    return qt_ntfs_permission_lookup_v2.fetchAndSubRelaxed(1)
+QT_IF_DEPRECATED_SINCE(6, 6, /*nothing*/, + qt_ntfs_permission_lookup)
+        == 1;
+}
+
+/*!
+    \internal
+
+    Returns true if the check is enabled.
+*/
+
+bool qAreNtfsPermissionChecksEnabled() noexcept
+{
+    return qt_ntfs_permission_lookup_v2.loadRelaxed()
+QT_IF_DEPRECATED_SINCE(6, 6, /*nothing*/, + qt_ntfs_permission_lookup)
+        ;
+}
+QT_WARNING_POP
 
 /*!
     \class QNativeFilePermissions
@@ -855,6 +901,18 @@ void QFileSystemEngine::clearWinStatData(QFileSystemMetaData &data)
 //static
 QFileSystemEntry QFileSystemEngine::getLinkTarget(const QFileSystemEntry &link,
                                                   QFileSystemMetaData &data)
+{
+    QFileSystemEntry ret = getRawLinkPath(link, data);
+    if (!ret.isEmpty() && ret.isRelative()) {
+        QString target = absoluteName(link).path() + u'/' + ret.filePath();
+        ret = QFileSystemEntry(QDir::cleanPath(target));
+    }
+    return ret;
+}
+
+//static
+QFileSystemEntry QFileSystemEngine::getRawLinkPath(const QFileSystemEntry &link,
+                                                   QFileSystemMetaData &data)
 {
     Q_CHECK_FILE_NAME(link, link);
 
@@ -866,12 +924,7 @@ QFileSystemEntry QFileSystemEngine::getLinkTarget(const QFileSystemEntry &link,
         target = readLink(link);
     else if (data.isLink())
         target = readSymLink(link);
-    QFileSystemEntry ret(target);
-    if (!target.isEmpty() && ret.isRelative()) {
-        target.prepend(absoluteName(link).path() + u'/');
-        ret = QFileSystemEntry(QDir::cleanPath(target));
-    }
-    return ret;
+    return QFileSystemEntry(target);
 }
 
 //static
@@ -1071,8 +1124,7 @@ QString QFileSystemEngine::owner(const QFileSystemEntry &entry, QAbstractFileEng
 {
     QString name;
 #if QT_CONFIG(fslibs)
-    extern int qt_ntfs_permission_lookup;
-    if (qt_ntfs_permission_lookup > 0) {
+    if (qAreNtfsPermissionChecksEnabled()) {
         initGlobalSid();
         {
             PSID pOwner = 0;
@@ -1126,7 +1178,7 @@ bool QFileSystemEngine::fillPermissions(const QFileSystemEntry &entry, QFileSyst
                                         QFileSystemMetaData::MetaDataFlags what)
 {
 #if QT_CONFIG(fslibs)
-    if (qt_ntfs_permission_lookup > 0) {
+    if (qAreNtfsPermissionChecksEnabled()) {
         initGlobalSid();
 
         QString fname = entry.nativeFilePath();
diff --git a/src/corelib/io/qfilesystemwatcher_inotify.cpp b/src/corelib/io/qfilesystemwatcher_inotify.cpp
index 3b53b490..a37eecfe 100644
--- a/src/corelib/io/qfilesystemwatcher_inotify.cpp
+++ b/src/corelib/io/qfilesystemwatcher_inotify.cpp
@@ -334,7 +334,7 @@ void QInotifyFileSystemWatcherEngine::readFromInotify()
         return;
 
     QVarLengthArray<char, 4096> buffer(buffSize);
-    buffSize = read(inotifyFd, buffer.data(), buffSize);
+    buffSize = int(read(inotifyFd, buffer.data(), buffSize));
     char *at = buffer.data();
     char * const end = at + buffSize;
 
diff --git a/src/corelib/io/qfilesystemwatcher_polling.cpp b/src/corelib/io/qfilesystemwatcher_polling.cpp
index 03425ac2..a74205b7 100644
--- a/src/corelib/io/qfilesystemwatcher_polling.cpp
+++ b/src/corelib/io/qfilesystemwatcher_polling.cpp
@@ -2,16 +2,21 @@
 // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
 
 #include "qfilesystemwatcher_polling_p.h"
+
 #include <QtCore/qscopeguard.h>
 #include <QtCore/qtimer.h>
 
+#include <chrono>
+
+using namespace std::chrono_literals;
+
 QT_BEGIN_NAMESPACE
 
+static constexpr auto PollingInterval = 1s;
+
 QPollingFileSystemWatcherEngine::QPollingFileSystemWatcherEngine(QObject *parent)
-    : QFileSystemWatcherEngine(parent),
-      timer(this)
+    : QFileSystemWatcherEngine(parent)
 {
-    connect(&timer, SIGNAL(timeout()), SLOT(timeout()));
 }
 
 QStringList QPollingFileSystemWatcherEngine::addPaths(const QStringList &paths,
@@ -43,7 +48,7 @@ QStringList QPollingFileSystemWatcherEngine::addPaths(const QStringList &paths,
     if ((!this->files.isEmpty() ||
          !this->directories.isEmpty()) &&
         !timer.isActive()) {
-        timer.start(PollingInterval);
+        timer.start(PollingInterval, this);
     }
 
     return unhandled;
@@ -72,8 +77,11 @@ QStringList QPollingFileSystemWatcherEngine::removePaths(const QStringList &path
     return unhandled;
 }
 
-void QPollingFileSystemWatcherEngine::timeout()
+void QPollingFileSystemWatcherEngine::timerEvent(QTimerEvent *e)
 {
+    if (e->timerId() != timer.timerId())
+        return QFileSystemWatcherEngine::timerEvent(e);
+
     for (auto it = files.begin(), end = files.end(); it != end; /*erasing*/) {
         QString path = it.key();
         QFileInfo fi(path);
diff --git a/src/corelib/io/qfilesystemwatcher_polling_p.h b/src/corelib/io/qfilesystemwatcher_polling_p.h
index a12ff4b5..b65ff055 100644
--- a/src/corelib/io/qfilesystemwatcher_polling_p.h
+++ b/src/corelib/io/qfilesystemwatcher_polling_p.h
@@ -15,11 +15,11 @@
 // We mean it.
 //
 
+#include <QtCore/qbasictimer.h>
 #include <QtCore/qfileinfo.h>
 #include <QtCore/qmutex.h>
 #include <QtCore/qdatetime.h>
 #include <QtCore/qdir.h>
-#include <QtCore/qtimer.h>
 #include <QtCore/qhash.h>
 
 #include "qfilesystemwatcher_p.h"
@@ -27,8 +27,6 @@
 QT_REQUIRE_CONFIG(filesystemwatcher);
 QT_BEGIN_NAMESPACE
 
-enum { PollingInterval = 1000 };
-
 class QPollingFileSystemWatcherEngine : public QFileSystemWatcherEngine
 {
     Q_OBJECT
@@ -46,7 +44,7 @@ class QPollingFileSystemWatcherEngine : public QFileSystemWatcherEngine
             : ownerId(fileInfo.ownerId()),
               groupId(fileInfo.groupId()),
               permissions(fileInfo.permissions()),
-              lastModified(fileInfo.lastModified())
+              lastModified(fileInfo.lastModified(QTimeZone::UTC))
         {
             if (fileInfo.isDir()) {
                 entries = fileInfo.absoluteDir().entryList(QDir::AllEntries);
@@ -65,7 +63,7 @@ class QPollingFileSystemWatcherEngine : public QFileSystemWatcherEngine
             return (ownerId != fileInfo.ownerId()
                     || groupId != fileInfo.groupId()
                     || permissions != fileInfo.permissions()
-                    || lastModified != fileInfo.lastModified());
+                    || lastModified != fileInfo.lastModified(QTimeZone::UTC));
         }
     };
 
@@ -77,11 +75,11 @@ public:
     QStringList addPaths(const QStringList &paths, QStringList *files, QStringList *directories) override;
     QStringList removePaths(const QStringList &paths, QStringList *files, QStringList *directories) override;
 
-private Q_SLOTS:
-    void timeout();
+private:
+    void timerEvent(QTimerEvent *) final;
 
 private:
-    QTimer timer;
+    QBasicTimer timer;
 };
 
 QT_END_NAMESPACE
diff --git a/src/corelib/io/qfsfileengine.cpp b/src/corelib/io/qfsfileengine.cpp
index ffc4878e..0ff7da1a 100644
--- a/src/corelib/io/qfsfileengine.cpp
+++ b/src/corelib/io/qfsfileengine.cpp
@@ -18,7 +18,7 @@
 #endif
 #include <stdio.h>
 #include <stdlib.h>
-#if defined(Q_OS_MAC)
+#if defined(Q_OS_DARWIN)
 # include <private/qcore_mac_p.h>
 #endif
 
diff --git a/src/corelib/io/qfsfileengine_unix.cpp b/src/corelib/io/qfsfileengine_unix.cpp
index fb08385c..217474cb 100644
--- a/src/corelib/io/qfsfileengine_unix.cpp
+++ b/src/corelib/io/qfsfileengine_unix.cpp
@@ -450,6 +450,12 @@ QString QFSFileEngine::fileName(FileName file) const
             return entry.filePath();
         }
         return QString();
+    case RawLinkPath:
+        if (d->isSymlink()) {
+            QFileSystemEntry entry = QFileSystemEngine::getRawLinkPath(d->fileEntry, d->metaData);
+            return entry.filePath();
+        }
+        return QString();
     case JunctionName:
         return QString();
     case DefaultName:
diff --git a/src/corelib/io/qfsfileengine_win.cpp b/src/corelib/io/qfsfileengine_win.cpp
index 1030c559..daa43262 100644
--- a/src/corelib/io/qfsfileengine_win.cpp
+++ b/src/corelib/io/qfsfileengine_win.cpp
@@ -619,6 +619,8 @@ QString QFSFileEngine::fileName(FileName file) const
     }
     case AbsoluteLinkTarget:
         return QFileSystemEngine::getLinkTarget(d->fileEntry, d->metaData).filePath();
+    case RawLinkPath:
+        return QFileSystemEngine::getRawLinkPath(d->fileEntry, d->metaData).filePath();
     case BundleName:
         return QString();
     case JunctionName:
diff --git a/src/corelib/io/qiodevice.cpp b/src/corelib/io/qiodevice.cpp
index 29752c8e..81c2bc16 100644
--- a/src/corelib/io/qiodevice.cpp
+++ b/src/corelib/io/qiodevice.cpp
@@ -1500,7 +1500,7 @@ qint64 QIODevice::readLineData(char *data, qint64 maxSize)
     Q_D(QIODevice);
     qint64 readSoFar = 0;
     char c;
-    int lastReadReturn = 0;
+    qint64 lastReadReturn = 0;
     d->baseReadLineDataCalled = true;
 
     while (readSoFar < maxSize && (lastReadReturn = read(&c, 1)) == 1) {
diff --git a/src/corelib/io/qipaddress.cpp b/src/corelib/io/qipaddress.cpp
index 9956f037..c2b274f8 100644
--- a/src/corelib/io/qipaddress.cpp
+++ b/src/corelib/io/qipaddress.cpp
@@ -61,7 +61,7 @@ static bool parseIp4Internal(IPv4Address &address, const char *ptr, bool acceptL
             return false;
 
         auto [ll, used] = qstrntoull(ptr, stop - ptr, 0);
-        quint32 x = ll;
+        const quint32 x = quint32(ll);
         if (used <= 0 || ll != x)
             return false;
 
diff --git a/src/corelib/io/qlockfile.cpp b/src/corelib/io/qlockfile.cpp
index 522bb081..0eb6acb6 100644
--- a/src/corelib/io/qlockfile.cpp
+++ b/src/corelib/io/qlockfile.cpp
@@ -60,7 +60,7 @@ static QString machineName()
     When protecting for a short-term operation, it is acceptable to call lock() and wait
     until any running operation finishes.
     When protecting a resource over a long time, however, the application should always
-    call setStaleLockTime(0) and then tryLock() with a short timeout, in order to
+    call setStaleLockTime(0ms) and then tryLock() with a short timeout, in order to
     warn the user that the resource is locked.
 
     If the process holding the lock crashes, the lock file stays on disk and can prevent
@@ -138,20 +138,24 @@ QString QLockFile::fileName() const
     meanwhile, so one way to detect a stale lock file is by the fact that
     it has been around for a long time.
 
+    This is an overloaded function, equivalent to calling:
+    \code
+    setStaleLockTime(std::chrono::milliseconds{staleLockTime});
+    \endcode
+
     \sa staleLockTime()
 */
 void QLockFile::setStaleLockTime(int staleLockTime)
 {
-    Q_D(QLockFile);
-    d->staleLockTime = staleLockTime;
+    setStaleLockTime(std::chrono::milliseconds{staleLockTime});
 }
 
-/*! \fn void QLockFile::setStaleLockTime(std::chrono::milliseconds value)
-    \overload
+/*!
     \since 6.2
 
-    Sets the interval after which a lock file is considered stale to \a value.
-    The default value is 30 seconds.
+    Sets the interval after which a lock file is considered stale to \a staleLockTime.
+    The default value is 30s.
+
     If your application typically keeps the file locked for more than 30 seconds
     (for instance while saving megabytes of data for 2 minutes), you should set
     a bigger value using setStaleLockTime().
@@ -164,6 +168,11 @@ void QLockFile::setStaleLockTime(int staleLockTime)
 
     \sa staleLockTime()
 */
+void QLockFile::setStaleLockTime(std::chrono::milliseconds staleLockTime)
+{
+    Q_D(QLockFile);
+    d->staleLockTime = staleLockTime;
+}
 
 /*!
     Returns the time in milliseconds after which
@@ -173,8 +182,7 @@ void QLockFile::setStaleLockTime(int staleLockTime)
 */
 int QLockFile::staleLockTime() const
 {
-    Q_D(const QLockFile);
-    return d->staleLockTime;
+    return int(staleLockTimeAsDuration().count());
 }
 
 /*! \fn std::chrono::milliseconds QLockFile::staleLockTimeAsDuration() const
@@ -186,6 +194,11 @@ int QLockFile::staleLockTime() const
 
     \sa setStaleLockTime()
 */
+std::chrono::milliseconds QLockFile::staleLockTimeAsDuration() const
+{
+    Q_D(const QLockFile);
+    return d->staleLockTime;
+}
 
 /*!
     Returns \c true if the lock was acquired by this QLockFile instance,
@@ -216,7 +229,7 @@ bool QLockFile::isLocked() const
 */
 bool QLockFile::lock()
 {
-    return tryLock(-1);
+    return tryLock(std::chrono::milliseconds::max());
 }
 
 /*!
@@ -241,48 +254,10 @@ bool QLockFile::lock()
 */
 bool QLockFile::tryLock(int timeout)
 {
-    Q_D(QLockFile);
-    QDeadlineTimer timer(qMax(timeout, -1));    // QDT only takes -1 as "forever"
-    int sleepTime = 100;
-    forever {
-        d->lockError = d->tryLock_sys();
-        switch (d->lockError) {
-        case NoError:
-            d->isLocked = true;
-            return true;
-        case PermissionError:
-        case UnknownError:
-            return false;
-        case LockFailedError:
-            if (!d->isLocked && d->isApparentlyStale()) {
-                if (Q_UNLIKELY(QFileInfo(d->fileName).lastModified() > QDateTime::currentDateTimeUtc()))
-                    qInfo("QLockFile: Lock file '%ls' has a modification time in the future", qUtf16Printable(d->fileName));
-                // Stale lock from another thread/process
-                // Ensure two processes don't remove it at the same time
-                QLockFile rmlock(d->fileName + ".rmlock"_L1);
-                if (rmlock.tryLock()) {
-                    if (d->isApparentlyStale() && d->removeStaleLock())
-                        continue;
-                }
-            }
-            break;
-        }
-
-        int remainingTime = timer.remainingTime();
-        if (remainingTime == 0)
-            return false;
-        else if (uint(sleepTime) > uint(remainingTime))
-            sleepTime = remainingTime;
-
-        QThread::msleep(sleepTime);
-        if (sleepTime < 5 * 1000)
-            sleepTime *= 2;
-    }
-    // not reached
-    return false;
+    return tryLock(std::chrono::milliseconds{ timeout });
 }
 
-/*! \fn bool QLockFile::tryLock(std::chrono::milliseconds timeout)
+/*!
     \overload
     \since 6.2
 
@@ -300,6 +275,54 @@ bool QLockFile::tryLock(int timeout)
 
     \sa lock(), unlock()
 */
+bool QLockFile::tryLock(std::chrono::milliseconds timeout)
+{
+    using namespace std::chrono_literals;
+    using Msec = std::chrono::milliseconds;
+
+    Q_D(QLockFile);
+
+    QDeadlineTimer timer(timeout < 0ms ? Msec::max() : timeout);
+
+    Msec sleepTime = 100ms;
+    while (true) {
+        d->lockError = d->tryLock_sys();
+        switch (d->lockError) {
+        case NoError:
+            d->isLocked = true;
+            return true;
+        case PermissionError:
+        case UnknownError:
+            return false;
+        case LockFailedError:
+            if (!d->isLocked && d->isApparentlyStale()) {
+                if (Q_UNLIKELY(QFileInfo(d->fileName).lastModified(QTimeZone::UTC) > QDateTime::currentDateTimeUtc()))
+                    qInfo("QLockFile: Lock file '%ls' has a modification time in the future", qUtf16Printable(d->fileName));
+                // Stale lock from another thread/process
+                // Ensure two processes don't remove it at the same time
+                QLockFile rmlock(d->fileName + ".rmlock"_L1);
+                if (rmlock.tryLock()) {
+                    if (d->isApparentlyStale() && d->removeStaleLock())
+                        continue;
+                }
+            }
+            break;
+        }
+
+        auto remainingTime = std::chrono::duration_cast<Msec>(timer.remainingTimeAsDuration());
+        if (remainingTime == 0ms)
+            return false;
+
+        if (sleepTime > remainingTime)
+            sleepTime = remainingTime;
+
+        QThread::sleep(sleepTime);
+        if (sleepTime < 5s)
+            sleepTime *= 2;
+    }
+    // not reached
+    return false;
+}
 
 /*!
     \fn void QLockFile::unlock()
@@ -413,8 +436,10 @@ bool QLockFilePrivate::isApparentlyStale() const
         }
     }
 
-    const qint64 age = QFileInfo(fileName).lastModified().msecsTo(QDateTime::currentDateTimeUtc());
-    return staleLockTime > 0 && qAbs(age) > staleLockTime;
+    const QDateTime lastMod = QFileInfo(fileName).lastModified(QTimeZone::UTC);
+    using namespace std::chrono;
+    const milliseconds age{lastMod.msecsTo(QDateTime::currentDateTimeUtc())};
+    return staleLockTime > 0ms && abs(age) > staleLockTime;
 }
 
 /*!
diff --git a/src/corelib/io/qlockfile.h b/src/corelib/io/qlockfile.h
index b63194dc..af481ab5 100644
--- a/src/corelib/io/qlockfile.h
+++ b/src/corelib/io/qlockfile.h
@@ -22,20 +22,16 @@ public:
     QString fileName() const;
 
     bool lock();
-    bool tryLock(int timeout = 0);
+    bool tryLock(int timeout);
     void unlock();
 
     void setStaleLockTime(int);
     int staleLockTime() const;
 
-    bool tryLock(std::chrono::milliseconds timeout) { return tryLock(int(timeout.count())); }
+    bool tryLock(std::chrono::milliseconds timeout = std::chrono::milliseconds::zero());
 
-    void setStaleLockTime(std::chrono::milliseconds value) { setStaleLockTime(int(value.count())); }
-
-    std::chrono::milliseconds staleLockTimeAsDuration() const
-    {
-        return std::chrono::milliseconds(staleLockTime());
-    }
+    void setStaleLockTime(std::chrono::milliseconds value);
+    std::chrono::milliseconds staleLockTimeAsDuration() const;
 
     bool isLocked() const;
     bool getLockInfo(qint64 *pid, QString *hostname, QString *appname) const;
diff --git a/src/corelib/io/qlockfile_p.h b/src/corelib/io/qlockfile_p.h
index 42aa5ecc..299b13b2 100644
--- a/src/corelib/io/qlockfile_p.h
+++ b/src/corelib/io/qlockfile_p.h
@@ -32,15 +32,7 @@ class QLockFilePrivate
 {
 public:
     QLockFilePrivate(const QString &fn)
-        : fileName(fn),
-#ifdef Q_OS_WIN
-          fileHandle(INVALID_HANDLE_VALUE),
-#else
-          fileHandle(-1),
-#endif
-          staleLockTime(30 * 1000), // 30 seconds
-          lockError(QLockFile::NoError),
-          isLocked(false)
+        : fileName(fn)
     {
     }
     QLockFile::LockError tryLock_sys();
@@ -55,14 +47,16 @@ public:
     static bool isProcessRunning(qint64 pid, const QString &appname);
 
     QString fileName;
+
 #ifdef Q_OS_WIN
-    Qt::HANDLE fileHandle;
+    Qt::HANDLE fileHandle = INVALID_HANDLE_VALUE;
 #else
-    int fileHandle;
+    int fileHandle = -1;
 #endif
-    int staleLockTime; // "int milliseconds" is big enough for 24 days
-    QLockFile::LockError lockError;
-    bool isLocked;
+
+    std::chrono::milliseconds staleLockTime = std::chrono::seconds{30};
+    QLockFile::LockError lockError = QLockFile::NoError;
+    bool isLocked = false;
 
     static int getLockFileHandle(QLockFile *f)
     {
diff --git a/src/corelib/io/qlockfile_unix.cpp b/src/corelib/io/qlockfile_unix.cpp
index 34aa3b65..47aff8b9 100644
--- a/src/corelib/io/qlockfile_unix.cpp
+++ b/src/corelib/io/qlockfile_unix.cpp
@@ -170,7 +170,7 @@ bool QLockFilePrivate::removeStaleLock()
 
 bool QLockFilePrivate::isProcessRunning(qint64 pid, const QString &appname)
 {
-    if (::kill(pid, 0) == -1 && errno == ESRCH)
+    if (::kill(pid_t(pid), 0) == -1 && errno == ESRCH)
         return false; // PID doesn't exist anymore
 
     const QString processName = processNameByPid(pid);
diff --git a/src/corelib/io/qloggingregistry.cpp b/src/corelib/io/qloggingregistry.cpp
index 98057222..3c835cce 100644
--- a/src/corelib/io/qloggingregistry.cpp
+++ b/src/corelib/io/qloggingregistry.cpp
@@ -67,7 +67,7 @@ int QLoggingRule::pass(QLatin1StringView cat, QtMsgType msgType) const
             return 0;
     }
 
-    const int idx = cat.indexOf(category);
+    const qsizetype idx = cat.indexOf(category);
     if (idx >= 0) {
         if (flags == MidFilter) {
             // matches somewhere
@@ -194,7 +194,7 @@ void QLoggingSettingsParser::parseNextLine(QStringView line)
     }
 
     if (m_inRulesSection) {
-        int equalPos = line.indexOf(u'=');
+        const qsizetype equalPos = line.indexOf(u'=');
         if (equalPos != -1) {
             if (line.lastIndexOf(u'=') == equalPos) {
                 const auto key = line.left(equalPos).trimmed();
diff --git a/src/corelib/io/qprocess.cpp b/src/corelib/io/qprocess.cpp
index 67366a23..a7107507 100644
--- a/src/corelib/io/qprocess.cpp
+++ b/src/corelib/io/qprocess.cpp
@@ -72,7 +72,7 @@ QProcessEnvironment QProcessEnvironmentPrivate::fromList(const QStringList &list
     QStringList::ConstIterator it = list.constBegin(),
                               end = list.constEnd();
     for ( ; it != end; ++it) {
-        int pos = it->indexOf(u'=', 1);
+        const qsizetype pos = it->indexOf(u'=', 1);
         if (pos < 1)
             continue;
 
@@ -804,6 +804,76 @@ void QProcessPrivate::Channel::clear()
     \sa QProcess::CreateProcessArgumentModifier
 */
 
+/*!
+    \class QProcess::UnixProcessParameters
+    \inmodule QtCore
+    \note This struct is only available on Unix platforms
+    \since 6.6
+
+    This struct can be used to pass extra, Unix-specific configuration for the
+    child process using QProcess::setUnixProcessParameters().
+
+    Its members are:
+    \list
+    \li UnixProcessParameters::flags    Flags, see QProcess::UnixProcessFlags
+    \li UnixProcessParameters::lowestFileDescriptorToClose  The lowest file
+            descriptor to close.
+    \endlist
+
+    When the QProcess::UnixProcessFlags::CloseFileDescriptors flag is set in
+    the \c flags field, QProcess closes the application's open file descriptors
+    before executing the child process. The descriptors 0, 1, and 2 (that is,
+    \c stdin, \c stdout, and \c stderr) are left alone, along with the ones
+    numbered lower than the value of the \c lowestFileDescriptorToClose field.
+
+    All of the settings above can also be manually achieved by calling the
+    respective POSIX function from a handler set with
+    QProcess::setChildProcessModifier(). This structure allows QProcess to deal
+    with any platform-specific differences, benefit from certain optimizations,
+    and reduces code duplication. Moreover, if any of those functions fail,
+    QProcess will enter QProcess::FailedToStart state, while the child process
+    modifier callback is not allowed to fail.
+
+    \sa QProcess::setUnixProcessParameters(), QProcess::setChildProcessModifier()
+*/
+
+/*!
+    \enum QProcess::UnixProcessFlag
+    \since 6.6
+
+    These flags can be used in the \c flags field of \l UnixProcessParameters.
+
+    \value CloseFileDescriptors  Close all file descriptors above the threshold
+           defined by \c lowestFileDescriptorToClose, preventing any currently
+           open descriptor in the parent process from accidentally leaking to the
+           child. The \c stdin, \c stdout, and \c stderr file descriptors are
+           never closed.
+
+    \value IgnoreSigPipe    Always sets the \c SIGPIPE signal to ignored
+           (\c SIG_IGN), even if the \c ResetSignalHandlers flag was set. By
+           default, if the child attempts to write to its standard output or
+           standard error after the respective channel was closed with
+           QProcess::closeReadChannel(), it would get the \c SIGPIPE signal and
+           terminate immediately; with this flag, the write operation fails
+           without a signal and the child may continue executing.
+
+    \value ResetSignalHandlers  Resets all Unix signal handlers back to their
+           default state (that is, pass \c SIG_DFL to \c{signal(2)}). This flag
+           is useful to ensure any ignored (\c SIG_IGN) signal does not affect
+           the child's behavior.
+
+    \value UseVFork  Requests that QProcess use \c{vfork(2)} to start the child
+           process. Use this flag to indicate that the callback function set
+           with setChildProcessModifier() is safe to execute in the child side of
+           a \c{vfork(2)}; that is, the callback does not modify any non-local
+           variables (directly or through any function it calls), nor attempts
+           to communicate with the parent process. It is implementation-defined
+           if QProcess will actually use \c{vfork(2)} and if \c{vfork(2)} is
+           different from standard \c{fork(2)}.
+
+    \sa setUnixProcessParameters(), unixProcessParameters()
+*/
+
 /*!
     \fn void QProcess::errorOccurred(QProcess::ProcessError error)
     \since 5.6
@@ -1553,7 +1623,7 @@ void QProcess::setCreateProcessArgumentsModifier(CreateProcessArgumentModifier m
 
     \note This function is only available on Unix platforms.
 
-    \sa setChildProcessModifier()
+    \sa setChildProcessModifier(), unixProcessParameters()
 */
 std::function<void(void)> QProcess::childProcessModifier() const
 {
@@ -1567,12 +1637,9 @@ std::function<void(void)> QProcess::childProcessModifier() const
     Sets the \a modifier function for the child process, for Unix systems
     (including \macos; for Windows, see setCreateProcessArgumentsModifier()).
     The function contained by the \a modifier argument will be invoked in the
-    child process after \c{fork()} or \c{vfork()} is completed and QProcess has set up the
-    standard file descriptors for the child process, but before \c{execve()},
-    inside start(). The modifier is useful to change certain properties of the
-    child process, such as setting up additional file descriptors or closing
-    others, changing the nice level, disconnecting from the controlling TTY,
-    etc.
+    child process after \c{fork()} or \c{vfork()} is completed and QProcess has
+    set up the standard file descriptors for the child process, but before
+    \c{execve()}, inside start().
 
     The following shows an example of setting up a child process to run without
     privileges:
@@ -1582,22 +1649,32 @@ std::function<void(void)> QProcess::childProcessModifier() const
     If the modifier function needs to exit the process, remember to use
     \c{_exit()}, not \c{exit()}.
 
+    Certain properties of the child process, such as closing all extraneous
+    file descriptors or disconnecting from the controlling TTY, can be more
+    readily achieved by using setUnixProcessParameters(), which can detect
+    failure and report a \l{QProcess::}{FailedToStart} condition. The modifier
+    is useful to change certain uncommon properties of the child process, such
+    as setting up additional file descriptors. If both a child process modifier
+    and Unix process parameters are set, the modifier is run before these
+    parameters are applied.
+
     \note In multithreaded applications, this function must be careful not to
     call any functions that may lock mutexes that may have been in use in
     other threads (in general, using only functions defined by POSIX as
     "async-signal-safe" is advised). Most of the Qt API is unsafe inside this
     callback, including qDebug(), and may lead to deadlocks.
 
-    \note On some systems (notably, Linux), QProcess will use \c{vfork()}
-    semantics to start the child process, so this function must obey even
-    stricter constraints. First, because it is still sharing memory with the
-    parent process, it must not write to any non-local variable and must obey
-    proper ordering semantics when reading from them, to avoid data races.
-    Second, even more library functions may misbehave; therefore, this function
-    should only make use of low-level system calls, such as \c{read()},
+    \note If the UnixProcessParameters::UseVFork flag is set via
+    setUnixProcessParameters(), QProcess may use \c{vfork()} semantics to
+    start the child process, so this function must obey even stricter
+    constraints. First, because it is still sharing memory with the parent
+    process, it must not write to any non-local variable and must obey proper
+    ordering semantics when reading from them, to avoid data races. Second,
+    even more library functions may misbehave; therefore, this function should
+    only make use of low-level system calls, such as \c{read()},
     \c{write()}, \c{setsid()}, \c{nice()}, and similar.
 
-    \sa childProcessModifier()
+    \sa childProcessModifier(), setUnixProcessParameters()
 */
 void QProcess::setChildProcessModifier(const std::function<void(void)> &modifier)
 {
@@ -1606,6 +1683,67 @@ void QProcess::setChildProcessModifier(const std::function<void(void)> &modifier
         d->unixExtras.reset(new QProcessPrivate::UnixExtras);
     d->unixExtras->childProcessModifier = modifier;
 }
+
+/*!
+    \since 6.6
+    Returns the \l UnixProcessParameters object describing extra flags and
+    settings that will be applied to the child process on Unix systems. The
+    default settings correspond to a default-constructed UnixProcessParameters.
+
+    \note This function is only available on Unix platforms.
+
+    \sa childProcessModifier()
+*/
+auto QProcess::unixProcessParameters() const noexcept -> UnixProcessParameters
+{
+    Q_D(const QProcess);
+    return d->unixExtras ? d->unixExtras->processParameters : UnixProcessParameters{};
+}
+
+/*!
+    \since 6.6
+    Sets the extra settings and parameters for the child process on Unix
+    systems to be \a params. This function can be used to ask QProcess to
+    modify the child process before launching the target executable.
+
+    This function can be used to change certain properties of the child
+    process, such as closing all extraneous file descriptors, changing the nice
+    level of the child, or disconnecting from the controlling TTY. For more
+    fine-grained control of the child process or to modify it in other ways,
+    use the setChildProcessModifier() function. If both a child process
+    modifier and Unix process parameters are set, the modifier is run before
+    these parameters are applied.
+
+    \note This function is only available on Unix platforms.
+
+    \sa unixProcessParameters(), setChildProcessModifier()
+*/
+void QProcess::setUnixProcessParameters(const UnixProcessParameters &params)
+{
+    Q_D(QProcess);
+    if (!d->unixExtras)
+        d->unixExtras.reset(new QProcessPrivate::UnixExtras);
+    d->unixExtras->processParameters = params;
+}
+
+/*!
+    \since 6.6
+    \overload
+
+    Sets the extra settings for the child process on Unix systems to \a
+    flagsOnly. This is the same as the overload with just the \c flags field
+    set.
+    \note This function is only available on Unix platforms.
+
+    \sa unixProcessParameters(), setChildProcessModifier()
+*/
+void QProcess::setUnixProcessParameters(UnixProcessFlags flagsOnly)
+{
+    Q_D(QProcess);
+    if (!d->unixExtras)
+        d->unixExtras.reset(new QProcessPrivate::UnixExtras);
+    d->unixExtras->processParameters = { flagsOnly };
+}
 #endif
 
 /*!
diff --git a/src/corelib/io/qprocess.h b/src/corelib/io/qprocess.h
index 4fa1037b..bfffd9b9 100644
--- a/src/corelib/io/qprocess.h
+++ b/src/corelib/io/qprocess.h
@@ -1,4 +1,5 @@
 // Copyright (C) 2016 The Qt Company Ltd.
+// Copyright (C) 2023 Intel Corporation.
 // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
 
 #ifndef QPROCESS_H
@@ -173,6 +174,25 @@ public:
 #if defined(Q_OS_UNIX) || defined(Q_QDOC)
     std::function<void(void)> childProcessModifier() const;
     void setChildProcessModifier(const std::function<void(void)> &modifier);
+
+    enum class UnixProcessFlag : quint32 {
+        ResetSignalHandlers                 = 0x0001, // like POSIX_SPAWN_SETSIGDEF
+        IgnoreSigPipe                       = 0x0002,
+        // some room if we want to add IgnoreSigHup or so
+        CloseFileDescriptors                = 0x0010,
+        UseVFork                            = 0x0020, // like POSIX_SPAWN_USEVFORK
+    };
+    Q_DECLARE_FLAGS(UnixProcessFlags, UnixProcessFlag)
+    struct UnixProcessParameters
+    {
+        UnixProcessFlags flags = {};
+        int lowestFileDescriptorToClose = 0;
+
+        quint32 _reserved[6] {};
+    };
+    UnixProcessParameters unixProcessParameters() const noexcept;
+    void setUnixProcessParameters(const UnixProcessParameters &params);
+    void setUnixProcessParameters(UnixProcessFlags flagsOnly);
 #endif
 
     QString workingDirectory() const;
@@ -256,6 +276,10 @@ private:
     Q_PRIVATE_SLOT(d_func(), void _q_processDied())
 };
 
+#ifdef Q_OS_UNIX
+Q_DECLARE_OPERATORS_FOR_FLAGS(QProcess::UnixProcessFlags)
+#endif
+
 #endif // QT_CONFIG(process)
 
 QT_END_NAMESPACE
diff --git a/src/corelib/io/qprocess_p.h b/src/corelib/io/qprocess_p.h
index e42b5733..3b862bc5 100644
--- a/src/corelib/io/qprocess_p.h
+++ b/src/corelib/io/qprocess_p.h
@@ -280,9 +280,9 @@ public:
     QWinEventNotifier *processFinishedNotifier = nullptr;
     Q_PROCESS_INFORMATION *pid = nullptr;
 #else
-
     struct UnixExtras {
         std::function<void(void)> childProcessModifier;
+        QProcess::UnixProcessParameters processParameters;
     };
     std::unique_ptr<UnixExtras> unixExtras;
     QSocketNotifier *stateNotifier = nullptr;
@@ -304,7 +304,7 @@ public:
     void startProcess();
 #if defined(Q_OS_UNIX)
     void commitChannels() const;
-    void execChild(int workingDirectory, char **argv, char **envp) const;
+    void execChild(int workingDirectory, char **argv, char **envp) const noexcept;
 #endif
     bool processStarted(QString *errorMessage = nullptr);
     void processFinished();
diff --git a/src/corelib/io/qprocess_unix.cpp b/src/corelib/io/qprocess_unix.cpp
index 6d0b26d5..2dc27f20 100644
--- a/src/corelib/io/qprocess_unix.cpp
+++ b/src/corelib/io/qprocess_unix.cpp
@@ -14,7 +14,7 @@
 #include "private/qcore_unix_p.h"
 #include "private/qlocking_p.h"
 
-#ifdef Q_OS_MAC
+#ifdef Q_OS_DARWIN
 #include <private/qcore_mac_p.h>
 #endif
 
@@ -36,20 +36,54 @@
 #include <limits.h>
 #include <stdlib.h>
 #include <string.h>
+#include <sys/resource.h>
+#include <unistd.h>
+
+#if __has_include(<linux/close_range.h>)
+// FreeBSD's is in <unistd.h>
+#  include <linux/close_range.h>
+#endif
 
 #if QT_CONFIG(process)
 #include <forkfd.h>
 #endif
 
+#ifndef O_PATH
+#  define O_PATH        0
+#endif
+
+#ifdef Q_OS_FREEBSD
+__attribute__((weak))
+#endif
+extern char **environ;
+
 QT_BEGIN_NAMESPACE
 
 using namespace Qt::StringLiterals;
 
-#if !defined(Q_OS_DARWIN)
+namespace {
+struct PThreadCancelGuard
+{
+#if defined(PTHREAD_CANCEL_DISABLE)
+    int oldstate;
+    PThreadCancelGuard() noexcept(false)
+    {
+        pthread_setcancelstate(PTHREAD_CANCEL_DISABLE, &oldstate);
+    }
+    ~PThreadCancelGuard() noexcept(false)
+    {
+        reenable();
+    }
+    void reenable() noexcept(false)
+    {
+        // this doesn't touch errno
+        pthread_setcancelstate(oldstate, nullptr);
+    }
+#endif
+};
+}
 
-QT_BEGIN_INCLUDE_NAMESPACE
-extern char **environ;
-QT_END_INCLUDE_NAMESPACE
+#if !defined(Q_OS_DARWIN)
 
 QProcessEnvironment QProcessEnvironment::systemEnvironment()
 {
@@ -72,6 +106,70 @@ QProcessEnvironment QProcessEnvironment::systemEnvironment()
 
 #if QT_CONFIG(process)
 
+namespace QtVforkSafe {
+// Certain libc functions we need to call in the child process scenario aren't
+// safe under vfork() because they do more than just place the system call to
+// the kernel and set errno on return. For those, we'll create a function
+// pointer like:
+//  static constexpr auto foobar = __libc_foobar;
+// while for all other OSes, it'll be
+//  using ::foobar;
+// allowing the code for the child side of the vfork to simply use
+//  QtVforkSafe::foobar(args);
+//
+// Currently known issues are:
+//
+// - FreeBSD's libthr sigaction() wrapper locks a rwlock
+//   https://github.com/freebsd/freebsd-src/blob/8dad5ece49479ba6cdcd5bb4c2799bbd61add3e6/lib/libthr/thread/thr_sig.c#L575-L641
+// - MUSL's sigaction() locks a mutex if the signal is SIGABR
+//   https://github.com/bminor/musl/blob/718f363bc2067b6487900eddc9180c84e7739f80/src/signal/sigaction.c#L63-L85
+//
+// All other functions called in the child side are vfork-safe, provided that
+// PThread cancellation is disabled and Unix signals are blocked.
+#if defined(__MUSL__)
+#  define LIBC_PREFIX   __libc_
+#elif defined(Q_OS_FREEBSD)
+// will cause QtCore to link to ELF version "FBSDprivate_1.0"
+#  define LIBC_PREFIX   _
+#endif
+
+#ifdef LIBC_PREFIX
+#  define CONCAT(x, y)          CONCAT2(x, y)
+#  define CONCAT2(x, y)         x ## y
+#  define DECLARE_FUNCTIONS(NAME)       \
+    extern decltype(::NAME) CONCAT(LIBC_PREFIX, NAME); \
+    static constexpr auto NAME = std::addressof(CONCAT(LIBC_PREFIX, NAME));
+#else   // LIBC_PREFIX
+#  define DECLARE_FUNCTIONS(NAME)       using ::NAME;
+#endif  // LIBC_PREFIX
+
+extern "C" {
+DECLARE_FUNCTIONS(sigaction)
+}
+
+#undef LIBC_PREFIX
+#undef DECLARE_FUNCTIONS
+
+// similar to qt_ignore_sigpipe() in qcore_unix_p.h, but vfork-safe
+static void change_sigpipe(decltype(SIG_DFL) new_handler)
+{
+    struct sigaction sa;
+    memset(&sa, 0, sizeof(sa));
+    sa.sa_handler = new_handler;
+    sigaction(SIGPIPE, &sa, nullptr);
+}
+} // namespace QtVforkSafe
+
+static int opendirfd(QByteArray encodedName)
+{
+    // We append "/." to the name to ensure that the directory is actually
+    // traversable (i.e., has the +x bit set). This avoids later problems
+    // with fchdir().
+    if (encodedName != "/" && !encodedName.endsWith("/."))
+        encodedName += "/.";
+    return qt_safe_open(encodedName, QT_OPEN_RDONLY | O_DIRECTORY | O_PATH);
+}
+
 namespace {
 struct AutoPipe
 {
@@ -95,8 +193,8 @@ struct AutoPipe
 
 struct ChildError
 {
-    qint64 code;
-    char function[8];
+    int code;
+    char function[12];
 };
 
 // Used for argv and envp arguments to execve()
@@ -412,6 +510,35 @@ static QString resolveExecutable(const QString &program)
     return program;
 }
 
+static int useForkFlags(const QProcessPrivate::UnixExtras *unixExtras)
+{
+#if defined(__SANITIZE_ADDRESS__) || __has_feature(address_sanitizer)
+    // ASan writes to global memory, so we mustn't use vfork().
+    return FFD_USE_FORK;
+#endif
+#if defined(Q_OS_LINUX) && !QT_CONFIG(forkfd_pidfd)
+    // some broken environments are known to have problems with the new Linux
+    // API, so we have a way for users to opt-out during configure time (see
+    // QTBUG-86285)
+    return FFD_USE_FORK;
+#endif
+#if defined(Q_OS_DARWIN)
+    // Using vfork() for startDetached() is causing problems. We don't know
+    // why: without the tools to investigate why it happens, we didn't bother.
+    return FFD_USE_FORK;
+#endif
+
+    if (!unixExtras || !unixExtras->childProcessModifier)
+        return 0;           // no modifier was supplied
+
+    // if a modifier was supplied, use fork() unless the user opts in to
+    // vfork()
+    auto flags = unixExtras->processParameters.flags;
+    if (flags.testFlag(QProcess::UnixProcessFlag::UseVFork))
+        return 0;
+    return FFD_USE_FORK;
+}
+
 void QProcessPrivate::startProcess()
 {
     Q_Q(QProcess);
@@ -443,7 +570,7 @@ void QProcessPrivate::startProcess()
 
     int workingDirFd = -1;
     if (!workingDirectory.isEmpty()) {
-        workingDirFd = qt_safe_open(QFile::encodeName(workingDirectory), QT_OPEN_RDONLY | O_DIRECTORY);
+        workingDirFd = opendirfd(QFile::encodeName(workingDirectory));
         if (workingDirFd == -1) {
             setErrorAndEmit(QProcess::FailedToStart, "chdir: "_L1 + qt_error_string());
             cleanup();
@@ -458,6 +585,11 @@ void QProcessPrivate::startProcess()
     const CharPointerList argv(resolveExecutable(program), arguments);
     const CharPointerList envp(environment.d.constData());
 
+    // Disable PThread cancellation from this point on: we mustn't have it
+    // enabled when the child starts running nor while our state could get
+    // corrupted if we abruptly exited this function.
+    [[maybe_unused]] PThreadCancelGuard cancelGuard;
+
     // Start the child.
     auto execChild1 = [this, workingDirFd, &argv, &envp]() {
         execChild(workingDirFd, argv.pointers.get(), envp.pointers.get());
@@ -467,19 +599,7 @@ void QProcessPrivate::startProcess()
         return -1;
     };
 
-    int ffdflags = FFD_CLOEXEC;
-
-#if defined(Q_OS_LINUX) && !QT_CONFIG(forkfd_pidfd)
-    // QTBUG-86285
-    ffdflags |= FFD_USE_FORK;
-#endif
-#if defined(__SANITIZE_ADDRESS__) || __has_feature(address_sanitizer)
-    // ASan writes to global memory, so we mustn't use vfork().
-    ffdflags |= FFD_USE_FORK;
-#endif
-    if (unixExtras && unixExtras->childProcessModifier)
-        ffdflags |= FFD_USE_FORK;
-
+    int ffdflags = FFD_CLOEXEC | useForkFlags(unixExtras.get());
     forkfd = ::vforkfd(ffdflags, &pid, execChild2, &execChild1);
     int lastForkErrno = errno;
 
@@ -529,14 +649,110 @@ void QProcessPrivate::startProcess()
         ::fcntl(stderrChannel.pipe[0], F_SETFL, ::fcntl(stderrChannel.pipe[0], F_GETFL) | O_NONBLOCK);
 }
 
+// we need an errno number to use to indicate the child process modifier threw,
+// something the regular operations shouldn't set.
+static constexpr int FakeErrnoForThrow =
+#ifdef ECANCELED
+        ECANCELED
+#else
+        ESHUTDOWN
+#endif
+        ;
+
+// See IMPORTANT notice below
+static void applyProcessParameters(const QProcess::UnixProcessParameters &params)
+{
+    // Apply Unix signal handler parameters.
+    // We don't expect signal() to fail, so we ignore its return value
+    bool ignore_sigpipe = params.flags.testFlag(QProcess::UnixProcessFlag::IgnoreSigPipe);
+    if (ignore_sigpipe)
+        QtVforkSafe::change_sigpipe(SIG_IGN);
+    if (params.flags.testFlag(QProcess::UnixProcessFlag::ResetSignalHandlers)) {
+        struct sigaction sa = {};
+        sa.sa_handler = SIG_DFL;
+        for (int sig = 1; sig < NSIG; ++sig) {
+            if (!ignore_sigpipe || sig != SIGPIPE)
+                QtVforkSafe::sigaction(sig, &sa, nullptr);
+        }
+
+        // and unmask all signals
+        sigset_t set;
+        sigemptyset(&set);
+        sigprocmask(SIG_SETMASK, &set, nullptr);
+    }
+
+    // Close all file descriptors above stderr.
+    // This isn't expected to fail, so we ignore close()'s return value.
+    if (params.flags.testFlag(QProcess::UnixProcessFlag::CloseFileDescriptors)) {
+        int r = -1;
+        int fd = qMax(STDERR_FILENO + 1, params.lowestFileDescriptorToClose);
+#if QT_CONFIG(close_range)
+        // On FreeBSD, this probably won't fail.
+        // On Linux, this will fail with ENOSYS before kernel 5.9.
+        r = close_range(fd, INT_MAX, 0);
+#endif
+        if (r == -1) {
+            // We *could* read /dev/fd to find out what file descriptors are
+            // open, but we won't. We CANNOT use opendir() here because it
+            // allocates memory. Using getdents(2) plus either strtoul() or
+            // std::from_chars() would be acceptable.
+            int max_fd = INT_MAX;
+            if (struct rlimit limit; getrlimit(RLIMIT_NOFILE, &limit) == 0)
+                max_fd = limit.rlim_cur;
+            for ( ; fd < max_fd; ++fd)
+                close(fd);
+        }
+    }
+}
+
+// the noexcept here adds an extra layer of protection
+static const char *callChildProcessModifier(const QProcessPrivate::UnixExtras *unixExtras) noexcept
+{
+    QT_TRY {
+        if (unixExtras->childProcessModifier)
+            unixExtras->childProcessModifier();
+    } QT_CATCH (...) {
+        errno = FakeErrnoForThrow;
+        return "throw";
+    }
+    return nullptr;
+}
+
+// this function doesn't return if the execution succeeds
+static const char *doExecChild(char **argv, char **envp, int workingDirFd,
+                               const QProcessPrivate::UnixExtras *unixExtras) noexcept
+{
+    // enter the working directory
+    if (workingDirFd != -1 && fchdir(workingDirFd) == -1)
+        return "fchdir";
+
+    if (unixExtras) {
+        // FIRST we call the user modifier function, before we dropping
+        // privileges or closing non-standard file descriptors
+        if (const char *what = callChildProcessModifier(unixExtras))
+            return what;
+
+        // then we apply our other user-provided parameters
+        applyProcessParameters(unixExtras->processParameters);
+    }
+
+    // execute the process
+    if (!envp)
+        qt_safe_execv(argv[0], argv);
+    else
+        qt_safe_execve(argv[0], argv, envp);
+    return "execve";
+}
+
+
 // IMPORTANT:
 //
 // This function is called in a vfork() context on some OSes (notably, Linux
 // with forkfd), so it MUST NOT modify any non-local variable because it's
 // still sharing memory with the parent process.
-void QProcessPrivate::execChild(int workingDir, char **argv, char **envp) const
+void QProcessPrivate::execChild(int workingDir, char **argv, char **envp) const noexcept
 {
-    ::signal(SIGPIPE, SIG_DFL);         // reset the signal that we ignored
+    QtVforkSafe::change_sigpipe(SIG_DFL);   // reset the signal that we ignored
 
     ChildError error = { 0, {} };       // force zeroing of function[8]
 
@@ -546,34 +762,12 @@ void QProcessPrivate::execChild(int workingDir, char **argv, char **envp) const
     // make sure this fd is closed if execv() succeeds
     qt_safe_close(childStartedPipe[0]);
 
-    // enter the working directory
-    if (workingDir != -1 && fchdir(workingDir) == -1) {
-        // failed, stop the process
-        strcpy(error.function, "fchdir");
-        goto report_errno;
-    }
-
-    if (unixExtras) {
-        if (unixExtras->childProcessModifier)
-            unixExtras->childProcessModifier();
-    }
-
-    // execute the process
-    if (!envp) {
-        qt_safe_execv(argv[0], argv);
-        strcpy(error.function, "execvp");
-    } else {
-#if defined (QPROCESS_DEBUG)
-        fprintf(stderr, "QProcessPrivate::execChild() starting %s\n", argv[0]);
-#endif
-        qt_safe_execve(argv[0], argv, envp);
-        strcpy(error.function, "execve");
-    }
+    const char *what = doExecChild(argv, envp, workingDir, unixExtras.get());
+    strcpy(error.function, what);
 
     // notify failure
     // don't use strerror or any other routines that may allocate memory, since
     // some buggy libc versions can deadlock on locked mutexes.
-report_errno:
     error.code = errno;
     qt_safe_write(childStartedPipe[1], &error, sizeof(error));
 }
@@ -583,7 +777,7 @@ bool QProcessPrivate::processStarted(QString *errorMessage)
     Q_Q(QProcess);
 
     ChildError buf;
-    int ret = qt_safe_read(childStartedPipe[0], &buf, sizeof(buf));
+    ssize_t ret = qt_safe_read(childStartedPipe[0], &buf, sizeof(buf));
 
     if (stateNotifier) {
         stateNotifier->setEnabled(false);
@@ -612,8 +806,12 @@ bool QProcessPrivate::processStarted(QString *errorMessage)
     }
 
     // did we read an error message?
-    if (errorMessage)
-        *errorMessage = QLatin1StringView(buf.function) + ": "_L1 + qt_error_string(buf.code);
+    if (errorMessage) {
+        if (buf.code == FakeErrnoForThrow)
+            *errorMessage = QProcess::tr("childProcessModifier() function threw an exception");
+        else
+            *errorMessage = QLatin1StringView(buf.function) + ": "_L1 + qt_error_string(buf.code);
+    }
 
     return false;
 }
@@ -945,7 +1143,7 @@ bool QProcessPrivate::startDetached(qint64 *pid)
 
     int workingDirFd = -1;
     if (!workingDirectory.isEmpty()) {
-        workingDirFd = qt_safe_open(QFile::encodeName(workingDirectory), QT_OPEN_RDONLY | O_DIRECTORY);
+        workingDirFd = opendirfd(QFile::encodeName(workingDirectory));
         if (workingDirFd == -1) {
             setErrorAndEmit(QProcess::FailedToStart, "chdir: "_L1 + qt_error_string(errno));
             return false;
@@ -955,9 +1153,17 @@ bool QProcessPrivate::startDetached(qint64 *pid)
     const CharPointerList argv(resolveExecutable(program), arguments);
     const CharPointerList envp(environment.d.constData());
 
-    pid_t childPid = fork();
+    // see startProcess() for more information
+    [[maybe_unused]] PThreadCancelGuard cancelGuard;
+
+    auto doFork = [this]() {
+        if (useForkFlags(unixExtras.get()))
+            return fork;
+        QT_IGNORE_DEPRECATIONS(return vfork;)
+    }();
+    pid_t childPid = doFork();
     if (childPid == 0) {
-        ::signal(SIGPIPE, SIG_DFL);     // reset the signal that we ignored
+        QtVforkSafe::change_sigpipe(SIG_DFL);   // reset the signal that we ignored
         ::setsid();
 
         qt_safe_close(startedPipe[0]);
@@ -970,20 +1176,13 @@ bool QProcessPrivate::startDetached(qint64 *pid)
             ::_exit(1);
         };
 
-        if (workingDirFd != -1 && fchdir(workingDirFd) == -1)
-            reportFailed("fchdir: ");
-
-        pid_t doubleForkPid = fork();
+        pid_t doubleForkPid = doFork();
         if (doubleForkPid == 0) {
             // Render channels configuration.
             commitChannels();
 
-            if (envp.pointers)
-                qt_safe_execve(argv.pointers[0], argv.pointers.get(), envp.pointers.get());
-            else
-                qt_safe_execv(argv.pointers[0], argv.pointers.get());
-
-            reportFailed("execv: ");
+            reportFailed(doExecChild(argv.pointers.get(), envp.pointers.get(), workingDirFd,
+                                     unixExtras.get()));
         } else if (doubleForkPid == -1) {
             reportFailed("fork: ");
         }
diff --git a/src/corelib/io/qresource.cpp b/src/corelib/io/qresource.cpp
index c8dc09db..56394911 100644
--- a/src/corelib/io/qresource.cpp
+++ b/src/corelib/io/qresource.cpp
@@ -82,7 +82,7 @@ public:
 
     inline QStringView next()
     {
-        int start = m_pos;
+        const qsizetype start = m_pos;
         while (m_pos < m_len && m_data[m_pos] != m_splitChar)
             ++m_pos;
         return QStringView(m_data + start, m_pos - start);
@@ -1478,14 +1478,14 @@ QString QResourceFileEngine::fileName(FileName file) const
 {
     Q_D(const QResourceFileEngine);
     if (file == BaseName) {
-        int slash = d->resource.fileName().lastIndexOf(u'/');
+        const qsizetype slash = d->resource.fileName().lastIndexOf(u'/');
         if (slash == -1)
             return d->resource.fileName();
         return d->resource.fileName().mid(slash + 1);
     } else if (file == PathName || file == AbsolutePathName) {
         const QString path = (file == AbsolutePathName) ? d->resource.absoluteFilePath()
                                                         : d->resource.fileName();
-        const int slash = path.lastIndexOf(u'/');
+        const qsizetype slash = path.lastIndexOf(u'/');
         if (slash == -1)
             return ":"_L1;
         else if (slash <= 1)
@@ -1495,7 +1495,7 @@ QString QResourceFileEngine::fileName(FileName file) const
     } else if (file == CanonicalName || file == CanonicalPathName) {
         const QString absoluteFilePath = d->resource.absoluteFilePath();
         if (file == CanonicalPathName) {
-            const int slash = absoluteFilePath.lastIndexOf(u'/');
+            const qsizetype slash = absoluteFilePath.lastIndexOf(u'/');
             if (slash != -1)
                 return absoluteFilePath.left(slash);
         }
diff --git a/src/corelib/io/qsettings.cpp b/src/corelib/io/qsettings.cpp
index 5cf535ea..d9e7df1b 100644
--- a/src/corelib/io/qsettings.cpp
+++ b/src/corelib/io/qsettings.cpp
@@ -44,7 +44,7 @@
 #  include <shlobj.h>
 #endif
 
-#if defined(Q_OS_UNIX) && !defined(Q_OS_MAC) && !defined(Q_OS_ANDROID)
+#if defined(Q_OS_UNIX) && !defined(Q_OS_DARWIN) && !defined(Q_OS_ANDROID)
 #define Q_XDG_PLATFORM
 #endif
 
@@ -212,9 +212,7 @@ namespace {
     }
     QChar *write(QChar *out, QLatin1StringView v)
     {
-        for (char ch : v)
-            *out++ = QLatin1Char(ch);
-        return out;
+        return QLatin1::convertToUnicode(out, v);
     }
     QChar *write(QChar *out, QStringView v)
     {
@@ -272,7 +270,7 @@ QString QSettingsPrivate::normalizedKey(QAnyStringView key)
 
 // see also qsettings_win.cpp and qsettings_mac.cpp
 
-#if !defined(Q_OS_WIN) && !defined(Q_OS_MAC) && !defined(Q_OS_WASM)
+#if !defined(Q_OS_WIN) && !defined(Q_OS_DARWIN) && !defined(Q_OS_WASM)
 QSettingsPrivate *QSettingsPrivate::create(QSettings::Format format, QSettings::Scope scope,
                                            const QString &organization, const QString &application)
 {
@@ -560,7 +558,7 @@ bool QSettingsPrivate::iniUnescapedKey(QByteArrayView key, QString &result)
         }
 
         int numDigits = 2;
-        int firstDigitPos = i + 1;
+        qsizetype firstDigitPos = i + 1;
 
         ch = decoded.at(i + 1).unicode();
         if (ch == 'U') {
@@ -753,8 +751,8 @@ StNormal:
                 ch = str.at(i);
                 if (isHexDigit(ch))
                     goto StHexEscape;
-            } else if (isOctalDigit(ch)) {
-                escapeVal = ch - '0';
+            } else if (const int o = fromOct(ch); o != -1) {
+                escapeVal = o;
                 goto StOctEscape;
             } else if (ch == '\n' || ch == '\r') {
                 if (i < str.size()) {
@@ -816,11 +814,9 @@ StHexEscape:
     }
 
     ch = str.at(i);
-    if (ch >= 'a')
-        ch -= 'a' - 'A';
-    if ((ch >= '0' && ch <= '9') || (ch >= 'A' && ch <= 'F')) {
+    if (const int h = fromHex(ch); h != -1) {
         escapeVal <<= 4;
-        escapeVal += QtMiscUtils::fromHex(ch);
+        escapeVal += h;
         ++i;
         goto StHexEscape;
     } else {
@@ -835,9 +831,9 @@ StOctEscape:
     }
 
     ch = str.at(i);
-    if (ch >= '0' && ch <= '7') {
+    if (const int o = fromOct(ch); o != -1) {
         escapeVal <<= 3;
-        escapeVal += ch - '0';
+        escapeVal += o;
         ++i;
         goto StOctEscape;
     } else {
@@ -885,7 +881,7 @@ void QConfFileSettingsPrivate::initFormat()
     extension = (format == QSettings::NativeFormat) ? ".conf"_L1 : ".ini"_L1;
     readFunc = nullptr;
     writeFunc = nullptr;
-#if defined(Q_OS_MAC)
+#if defined(Q_OS_DARWIN)
     caseSensitivity = (format == QSettings::NativeFormat) ? Qt::CaseSensitive : IniCaseSensitivity;
 #else
     caseSensitivity = IniCaseSensitivity;
@@ -1019,7 +1015,7 @@ static std::unique_lock<QBasicMutex> initDefaultPaths(std::unique_lock<QBasicMut
         const QString userPath = make_user_path();
         pathHash->insert(pathHashKey(QSettings::IniFormat, QSettings::UserScope), Path(userPath, false));
         pathHash->insert(pathHashKey(QSettings::IniFormat, QSettings::SystemScope), Path(systemPath, false));
-#ifndef Q_OS_MAC
+#ifndef Q_OS_DARWIN
         pathHash->insert(pathHashKey(QSettings::NativeFormat, QSettings::UserScope), Path(userPath, false));
         pathHash->insert(pathHashKey(QSettings::NativeFormat, QSettings::SystemScope), Path(systemPath, false));
 #endif
@@ -1326,13 +1322,13 @@ void QConfFileSettingsPrivate::syncConfFile(QConfFile *confFile)
 {
     bool readOnly = confFile->addedKeys.isEmpty() && confFile->removedKeys.isEmpty();
 
+    QFileInfo fileInfo(confFile->name);
     /*
         We can often optimize the read-only case, if the file on disk
         hasn't changed.
     */
     if (readOnly && confFile->size > 0) {
-        QFileInfo fileInfo(confFile->name);
-        if (confFile->size == fileInfo.size() && confFile->timeStamp == fileInfo.lastModified())
+        if (confFile->size == fileInfo.size() && confFile->timeStamp == fileInfo.lastModified(QTimeZone::UTC))
             return;
     }
 
@@ -1368,13 +1364,13 @@ void QConfFileSettingsPrivate::syncConfFile(QConfFile *confFile)
         We hold the lock. Let's reread the file if it has changed
         since last time we read it.
     */
-    QFileInfo fileInfo(confFile->name);
+    fileInfo.refresh();
     bool mustReadFile = true;
     bool createFile = !fileInfo.exists();
 
     if (!readOnly)
         mustReadFile = (confFile->size != fileInfo.size()
-                        || (confFile->size != 0 && confFile->timeStamp != fileInfo.lastModified()));
+                        || (confFile->size != 0 && confFile->timeStamp != fileInfo.lastModified(QTimeZone::UTC)));
 
     if (mustReadFile) {
         confFile->unparsedIniSections.clear();
@@ -1392,7 +1388,7 @@ void QConfFileSettingsPrivate::syncConfFile(QConfFile *confFile)
         */
         if (file.isReadable() && file.size() != 0) {
             bool ok = false;
-#ifdef Q_OS_MAC
+#ifdef Q_OS_DARWIN
             if (format == QSettings::NativeFormat) {
                 QByteArray data = file.readAll();
                 ok = readPlistFile(data, &confFile->originalKeys);
@@ -1420,7 +1416,7 @@ void QConfFileSettingsPrivate::syncConfFile(QConfFile *confFile)
         }
 
         confFile->size = fileInfo.size();
-        confFile->timeStamp = fileInfo.lastModified();
+        confFile->timeStamp = fileInfo.lastModified(QTimeZone::UTC);
     }
 
     /*
@@ -1448,7 +1444,7 @@ void QConfFileSettingsPrivate::syncConfFile(QConfFile *confFile)
             return;
         }
 
-#ifdef Q_OS_MAC
+#ifdef Q_OS_DARWIN
         if (format == QSettings::NativeFormat) {
             ok = writePlistFile(sf, mergedKeys);
         } else
@@ -1477,9 +1473,9 @@ void QConfFileSettingsPrivate::syncConfFile(QConfFile *confFile)
             confFile->addedKeys.clear();
             confFile->removedKeys.clear();
 
-            QFileInfo fileInfo(confFile->name);
+            fileInfo.refresh();
             confFile->size = fileInfo.size();
-            confFile->timeStamp = fileInfo.lastModified();
+            confFile->timeStamp = fileInfo.lastModified(QTimeZone::UTC);
 
             // If we have created the file, apply the file perms
             if (createFile) {
@@ -2344,7 +2340,7 @@ void QConfFileSettingsPrivate::ensureSectionParsed(QConfFile *confFile,
 
     \endlist
 
-    \sa QVariant, QSessionManager, {Settings Editor Example}, {Qt Widgets - Application Example}
+    \sa QVariant, QSessionManager, {Settings Editor Example}
 */
 
 /*! \enum QSettings::Status
diff --git a/src/corelib/io/qsettings_p.h b/src/corelib/io/qsettings_p.h
index 24298202..d79c10e6 100644
--- a/src/corelib/io/qsettings_p.h
+++ b/src/corelib/io/qsettings_p.h
@@ -248,7 +248,7 @@ private:
     virtual void initAccess();
     void syncConfFile(QConfFile *confFile);
     bool writeIniFile(QIODevice &device, const ParsedSettingsMap &map);
-#ifdef Q_OS_MAC
+#ifdef Q_OS_DARWIN
     bool readPlistFile(const QByteArray &data, ParsedSettingsMap *map) const;
     bool writePlistFile(QIODevice &file, const ParsedSettingsMap &map) const;
 #endif
diff --git a/src/corelib/io/qstandardpaths.cpp b/src/corelib/io/qstandardpaths.cpp
index a20c50e0..9a14ae07 100644
--- a/src/corelib/io/qstandardpaths.cpp
+++ b/src/corelib/io/qstandardpaths.cpp
@@ -523,7 +523,7 @@ QString QStandardPaths::findExecutable(const QString &executableName, const QStr
     \include standardpath/functiondocs.qdocinc displayName
 */
 
-#if !defined(Q_OS_MAC) && !defined(QT_BOOTSTRAPPED)
+#if !defined(Q_OS_DARWIN) && !defined(QT_BOOTSTRAPPED)
 QString QStandardPaths::displayName(StandardLocation type)
 {
     switch (type) {
diff --git a/src/corelib/io/qstandardpaths_unix.cpp b/src/corelib/io/qstandardpaths_unix.cpp
index 30c4c3ad..64d8a3fa 100644
--- a/src/corelib/io/qstandardpaths_unix.cpp
+++ b/src/corelib/io/qstandardpaths_unix.cpp
@@ -357,9 +357,9 @@ static QStringList dirsList(const QString &xdgEnvVar)
         if (dir.startsWith(u'/'))
             dirs.push_back(QDir::cleanPath(dir.toString()));
 
-    // Remove duplicates from the list, there's no use for duplicated
-    // paths in XDG_DATA_DIRS - if it's not found in the given
-    // directory the first time, it won't be there the second time.
+    // Remove duplicates from the list, there's no use for duplicated paths
+    // in XDG_* env vars - if whatever is being looked for is not found in
+    // the given directory the first time, it won't be there the second time.
     // Plus duplicate paths causes problems for example for mimetypes,
     // where duplicate paths here lead to duplicated mime types returned
     // for a file, eg "text/plain,text/plain" instead of "text/plain"
diff --git a/src/corelib/io/qstorageinfo.cpp b/src/corelib/io/qstorageinfo.cpp
index 25b11103..2a12c2cd 100644
--- a/src/corelib/io/qstorageinfo.cpp
+++ b/src/corelib/io/qstorageinfo.cpp
@@ -241,9 +241,10 @@ QByteArray QStorageInfo::device() const
     Returns the subvolume name for this volume.
 
     Some filesystem types allow multiple subvolumes inside one device, which
-    may be mounted in different paths. If the subvolume could be detected, it
-    is returned here. The format of the subvolume name is specific to each
-    filesystem type.
+    may be mounted in different paths (e.g. 'bind' mounts on Unix, or Btrfs
+    filesystem subvolumes). If the subvolume could be detected, its name is
+    returned by this function. The format of the subvolume name is specific
+    to each filesystem type.
 
     If this volume was not mounted from a subvolume of a larger filesystem or
     if the subvolume could not be detected, this function returns an empty byte
diff --git a/src/corelib/io/qstorageinfo_mac.cpp b/src/corelib/io/qstorageinfo_mac.cpp
index 690e7212..38f86c3f 100644
--- a/src/corelib/io/qstorageinfo_mac.cpp
+++ b/src/corelib/io/qstorageinfo_mac.cpp
@@ -43,9 +43,9 @@ void QStorageInfoPrivate::retrievePosixInfo()
     QT_STATFSBUF statfs_buf;
     int result = QT_STATFS(QFile::encodeName(rootPath).constData(), &statfs_buf);
     if (result == 0) {
-        device = QByteArray(statfs_buf.f_mntfromname);
+        device.assign(statfs_buf.f_mntfromname);
         readOnly = (statfs_buf.f_flags & MNT_RDONLY) != 0;
-        fileSystemType = QByteArray(statfs_buf.f_fstypename);
+        fileSystemType.assign(statfs_buf.f_fstypename);
         blockSize = statfs_buf.f_bsize;
     }
 }
diff --git a/src/corelib/io/qstorageinfo_p.h b/src/corelib/io/qstorageinfo_p.h
index d6d0ab28..af323b4d 100644
--- a/src/corelib/io/qstorageinfo_p.h
+++ b/src/corelib/io/qstorageinfo_p.h
@@ -40,7 +40,7 @@ protected:
     void retrieveDiskFreeSpace();
     bool queryStorageProperty();
     void queryFileFsSectorSizeInformation();
-#elif defined(Q_OS_MAC)
+#elif defined(Q_OS_DARWIN)
     void retrievePosixInfo();
     void retrieveUrlProperties(bool initRootPath = false);
     void retrieveLabel();
@@ -58,7 +58,7 @@ public:
     qint64 bytesTotal;
     qint64 bytesFree;
     qint64 bytesAvailable;
-    int blockSize;
+    ulong blockSize;
 
     bool readOnly;
     bool ready;
diff --git a/src/corelib/io/qstorageinfo_unix.cpp b/src/corelib/io/qstorageinfo_unix.cpp
index 207e93fa..20bddd87 100644
--- a/src/corelib/io/qstorageinfo_unix.cpp
+++ b/src/corelib/io/qstorageinfo_unix.cpp
@@ -463,8 +463,7 @@ inline bool QStorageIterator::next()
     r = qstrntoll(ptr, stop - ptr, 10);
     if (!r.ok())
         return false;
-    int parent_id = r.result;
-    Q_UNUSED(parent_id);
+    // parent_id = r.result; // member currently not in use
 
     ptr += r.used;
     r = qstrntoll(ptr, stop - ptr, 10);
diff --git a/src/corelib/io/qtemporaryfile.cpp b/src/corelib/io/qtemporaryfile.cpp
index 86ad1439..80ea57fb 100644
--- a/src/corelib/io/qtemporaryfile.cpp
+++ b/src/corelib/io/qtemporaryfile.cpp
@@ -45,8 +45,8 @@ QTemporaryFileName::QTemporaryFileName(const QString &templateName)
 {
     // Ensure there is a placeholder mask
     QString qfilename = QDir::fromNativeSeparators(templateName);
-    uint phPos = qfilename.size();
-    uint phLength = 0;
+    qsizetype phPos = qfilename.size();
+    qsizetype phLength = 0;
 
     while (phPos != 0) {
         --phPos;
@@ -163,7 +163,7 @@ QFileSystemEntry::NativePath QTemporaryFileName::generateNext()
     \internal
 
     Generates a unique file path from the template \a templ and creates a new
-    file based based on those parameters: the \c templ.length characters in \c
+    file based on those parameters: the \c templ.length characters in \c
     templ.path starting at \c templ.pos will be replaced by a random sequence of
     characters. \a mode specifies the file mode bits (not used on Windows).
 
@@ -406,7 +406,7 @@ bool QTemporaryFileEngine::close()
 QString QTemporaryFileEngine::fileName(QAbstractFileEngine::FileName file) const
 {
     if (isUnnamedFile()) {
-        if (file == AbsoluteLinkTarget) {
+        if (file == AbsoluteLinkTarget || file == RawLinkPath) {
             // we know our file isn't (won't be) a symlink
             return QString();
         }
diff --git a/src/corelib/io/qurl.cpp b/src/corelib/io/qurl.cpp
index 95f688ac..db2afb43 100644
--- a/src/corelib/io/qurl.cpp
+++ b/src/corelib/io/qurl.cpp
@@ -409,9 +409,6 @@ QT_BEGIN_NAMESPACE
 using namespace Qt::StringLiterals;
 using namespace QtMiscUtils;
 
-// in qstring.cpp:
-void qt_from_latin1(char16_t *dst, const char *str, size_t size) noexcept;
-
 inline static bool isHex(char c)
 {
     c |= 0x20;
diff --git a/src/corelib/io/qurl_p.h b/src/corelib/io/qurl_p.h
index 43dcdf82..9562d199 100644
--- a/src/corelib/io/qurl_p.h
+++ b/src/corelib/io/qurl_p.h
@@ -29,8 +29,8 @@ extern Q_AUTOTEST_EXPORT qsizetype qt_urlRecode(QString &appendTo, QStringView u
 // in qurlidna.cpp
 enum AceLeadingDot { AllowLeadingDot, ForbidLeadingDot };
 enum AceOperation { ToAceOnly, NormalizeAce };
-extern QString qt_ACE_do(const QString &domain, AceOperation op, AceLeadingDot dot,
-                         QUrl::AceProcessingOptions options);
+QString Q_CORE_EXPORT qt_ACE_do(const QString &domain, AceOperation op, AceLeadingDot dot,
+                                QUrl::AceProcessingOptions options = {});
 extern Q_AUTOTEST_EXPORT void qt_punycodeEncoder(QStringView in, QString *output);
 extern Q_AUTOTEST_EXPORT QString qt_punycodeDecoder(const QString &pc);
 
diff --git a/src/corelib/io/qurlidna.cpp b/src/corelib/io/qurlidna.cpp
index aed54450..bb14e1cd 100644
--- a/src/corelib/io/qurlidna.cpp
+++ b/src/corelib/io/qurlidna.cpp
@@ -327,12 +327,12 @@ static bool lessThan(const QChar *a, int l, const char *c)
         return false;
 
     while (*c) {
-        if (uc == e || *uc != *c)
+        if (uc == e || *uc != static_cast<unsigned char>(*c))
             break;
         ++uc;
         ++c;
     }
-    return (uc == e ? *c : *uc < *c);
+    return uc == e ? *c : (*uc < static_cast<unsigned char>(*c));
 }
 
 static bool equal(const QChar *a, int l, const char *b)
diff --git a/src/gui/text/qzip.cpp b/src/corelib/io/qzip.cpp
similarity index 99%
rename from src/gui/text/qzip.cpp
rename to src/corelib/io/qzip.cpp
index 7fd96363..d4976691 100644
--- a/src/gui/text/qzip.cpp
+++ b/src/corelib/io/qzip.cpp
@@ -1,12 +1,9 @@
 // Copyright (C) 2016 The Qt Company Ltd.
 // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
 
-#include <qglobal.h>
-
-#ifndef QT_NO_TEXTODFWRITER
-
 #include "qzipreader_p.h"
 #include "qzipwriter_p.h"
+
 #include <qdatetime.h>
 #include <qendian.h>
 #include <qdebug.h>
@@ -1348,5 +1345,3 @@ void QZipWriter::close()
 }
 
 QT_END_NAMESPACE
-
-#endif // QT_NO_TEXTODFWRITER
diff --git a/src/gui/text/qzipreader_p.h b/src/corelib/io/qzipreader_p.h
similarity index 92%
rename from src/gui/text/qzipreader_p.h
rename to src/corelib/io/qzipreader_p.h
index 2e8d6bc9..e6ddd0dc 100644
--- a/src/gui/text/qzipreader_p.h
+++ b/src/corelib/io/qzipreader_p.h
@@ -4,10 +4,7 @@
 #ifndef QZIPREADER_H
 #define QZIPREADER_H
 
-#include <QtGui/private/qtguiglobal_p.h>
-#include <QtCore/qglobal.h>
-
-#ifndef QT_NO_TEXTODFWRITER
+#include <QtCore/private/qglobal_p.h>
 
 //
 //  W A R N I N G
@@ -28,7 +25,7 @@ QT_BEGIN_NAMESPACE
 
 class QZipReaderPrivate;
 
-class Q_GUI_EXPORT QZipReader
+class Q_CORE_EXPORT QZipReader
 {
 public:
     explicit QZipReader(const QString &fileName, QIODevice::OpenMode mode = QIODevice::ReadOnly );
@@ -87,5 +84,4 @@ Q_DECLARE_TYPEINFO(QZipReader::Status, Q_PRIMITIVE_TYPE);
 
 QT_END_NAMESPACE
 
-#endif // QT_NO_TEXTODFWRITER
 #endif // QZIPREADER_H
diff --git a/src/gui/text/qzipwriter_p.h b/src/corelib/io/qzipwriter_p.h
similarity index 92%
rename from src/gui/text/qzipwriter_p.h
rename to src/corelib/io/qzipwriter_p.h
index 6c1ef5d8..770e6118 100644
--- a/src/gui/text/qzipwriter_p.h
+++ b/src/corelib/io/qzipwriter_p.h
@@ -3,9 +3,7 @@
 #ifndef QZIPWRITER_H
 #define QZIPWRITER_H
 
-#include <QtGui/private/qtguiglobal_p.h>
-
-#ifndef QT_NO_TEXTODFWRITER
+#include <QtCore/private/qglobal_p.h>
 
 //
 //  W A R N I N G
@@ -25,8 +23,7 @@ QT_BEGIN_NAMESPACE
 
 class QZipWriterPrivate;
 
-
-class Q_GUI_EXPORT QZipWriter
+class Q_CORE_EXPORT QZipWriter
 {
 public:
     explicit QZipWriter(const QString &fileName, QIODevice::OpenMode mode = (QIODevice::WriteOnly | QIODevice::Truncate) );
@@ -77,5 +74,4 @@ private:
 
 QT_END_NAMESPACE
 
-#endif // QT_NO_TEXTODFWRITER
 #endif // QZIPWRITER_H
diff --git a/src/corelib/ipc/qsharedmemory.cpp b/src/corelib/ipc/qsharedmemory.cpp
new file mode 100644
index 00000000..8dcdc43e
--- /dev/null
+++ b/src/corelib/ipc/qsharedmemory.cpp
@@ -0,0 +1,697 @@
+// Copyright (C) 2016 The Qt Company Ltd.
+// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
+
+#include "qsharedmemory.h"
+#include "qsharedmemory_p.h"
+
+#include "qtipccommon_p.h"
+#include "qsystemsemaphore.h"
+
+#include <q20memory.h>
+#include <qdebug.h>
+#ifdef Q_OS_WIN
+#  include <qt_windows.h>
+#endif
+
+#ifndef MAX_PATH
+#  define MAX_PATH PATH_MAX
+#endif
+
+QT_BEGIN_NAMESPACE
+
+#if QT_CONFIG(sharedmemory)
+
+using namespace QtIpcCommon;
+using namespace Qt::StringLiterals;
+
+QSharedMemoryPrivate::~QSharedMemoryPrivate()
+{
+    destructBackend();
+}
+
+inline void QSharedMemoryPrivate::constructBackend()
+{
+    using namespace q20;
+    visit([](auto p) { construct_at(p); });
+}
+
+inline void QSharedMemoryPrivate::destructBackend()
+{
+    visit([](auto p) { std::destroy_at(p); });
+}
+
+#if QT_CONFIG(systemsemaphore)
+inline QNativeIpcKey QSharedMemoryPrivate::semaphoreNativeKey() const
+{
+    if (isIpcSupported(IpcType::SharedMemory, QNativeIpcKey::Type::Windows)
+            && nativeKey.type() == QNativeIpcKey::Type::Windows) {
+        // native keys are plain kernel object names, limited to MAX_PATH
+        auto suffix = "_sem"_L1;
+        QString semkey = nativeKey.nativeKey();
+        semkey.truncate(MAX_PATH - suffix.size() - 1);
+        semkey += suffix;
+        return { semkey, QNativeIpcKey::Type::Windows };
+    }
+
+    // System V and POSIX keys appear to operate in different namespaces, so we
+    // can just use the same native key
+    return nativeKey;
+}
+#endif
+
+/*!
+  \class QSharedMemory
+  \inmodule QtCore
+  \since 4.4
+
+  \brief The QSharedMemory class provides access to a shared memory segment.
+
+  QSharedMemory provides access to a \l{Shared Memory}{shared memory segment}
+  by multiple threads and processes. Shared memory segments are identified by a
+  key, represented by \l QNativeIpcKey. A key can be created in a
+  cross-platform manner by using platformSafeKey().
+
+  One QSharedMemory object must create() the segment and this call specifies
+  the size of the segment. All other processes simply attach() to the segment
+  that must already exist. After either operation is successful, the
+  application may call data() to obtain a pointer to the data.
+
+  To support non-atomic operations, QSharedMemory provides API to gain
+  exclusive access: you may lock the shared memory with lock() before reading
+  from or writing to the shared memory, but remember to release the lock with
+  unlock() after you are done.
+
+  By default, QSharedMemory automatically destroys the shared memory segment
+  when the last instance of QSharedMemory is \l{detach()}{detached} from the
+  segment, and no references to the segment remain.
+
+  For details on the key types, platform-specific limitations, and
+  interoperability with older or non-Qt applications, see the \l{Native IPC
+  Keys} documentation. That includes important information for sandboxed
+  applications on Apple platforms, including all apps obtained via the Apple
+  App Store.
+
+  \sa {Inter-Process Communication}, QSystemSemaphore
+ */
+
+/*!
+  \overload QSharedMemory()
+
+  Constructs a shared memory object with the given \a parent. The shared memory
+  object's key is not set by the constructor, so the shared memory object does
+  not have an underlying shared memory segment attached. The key must be set
+  with setNativeKey() before create() or attach() can be used.
+
+  \sa setNativeKey()
+ */
+
+QSharedMemory::QSharedMemory(QObject *parent)
+    : QSharedMemory(QNativeIpcKey(), parent)
+{
+}
+
+/*!
+  \overload
+
+  Constructs a shared memory object with the given \a parent and with
+  its key set to \a key. Because its key is set, its create() and
+  attach() functions can be called.
+
+  \sa setNativeKey(), create(), attach()
+ */
+QSharedMemory::QSharedMemory(const QNativeIpcKey &key, QObject *parent)
+    : QObject(*new QSharedMemoryPrivate(key.type()), parent)
+{
+    setNativeKey(key);
+}
+
+#if QT_DEPRECATED_SINCE(6, 10)
+/*!
+  \deprecated
+
+  Constructs a shared memory object with the given \a parent and with
+  the legacy key set to \a key. Because its key is set, its create() and
+  attach() functions can be called.
+
+  Legacy keys are deprecated. See \l{Native IPC Keys} for more information.
+
+  \sa setKey(), create(), attach()
+ */
+QSharedMemory::QSharedMemory(const QString &key, QObject *parent)
+    : QSharedMemory(legacyNativeKey(key), parent)
+{
+}
+#endif
+
+/*!
+  The destructor clears the key, which forces the shared memory object
+  to \l {detach()} {detach} from its underlying shared memory
+  segment. If this shared memory object is the last one connected to
+  the shared memory segment, the detach() operation destroys the
+  shared memory segment.
+
+  \sa detach(), isAttached()
+ */
+QSharedMemory::~QSharedMemory()
+{
+    Q_D(QSharedMemory);
+    if (isAttached())
+        detach();
+    d->cleanHandle();
+}
+
+#if QT_DEPRECATED_SINCE(6, 10)
+/*!
+  \deprecated
+  \overload
+
+  Sets the legacy \a key for this shared memory object. If \a key is the same
+  as the current key, the function returns without doing anything. Otherwise,
+  if the shared memory object is attached to an underlying shared memory
+  segment, it will \l {detach()} {detach} from it before setting the new key.
+  This function does not do an attach().
+
+  You can call key() to retrieve the legacy key. This function is mostly the
+  same as:
+
+  \code
+    shm.setNativeKey(QSharedMemory::legacyNativeKey(key));
+  \endcode
+
+  except that it enables obtaining the legacy key using key().
+
+  \sa key(), nativeKey(), isAttached()
+*/
+void QSharedMemory::setKey(const QString &key)
+{
+    setNativeKey(legacyNativeKey(key));
+}
+#endif
+
+/*!
+  \since 4.8
+  \fn void QSharedMemory::setNativeKey(const QString &key, QNativeIpcKey::Type type)
+
+  Sets the native, platform specific, \a key for this shared memory object of
+  type \a type (the type parameter has been available since Qt 6.6). If \a key
+  is the same as the current native key, the function returns without doing
+  anything. Otherwise, if the shared memory object is attached to an underlying
+  shared memory segment, it will \l {detach()} {detach} from it before setting
+  the new key. This function does not do an attach().
+
+  This function is useful if the native key was shared from another process,
+  though the application must take care to ensure the key type matches what the
+  other process expects. See \l{Native IPC Keys} for more information.
+
+  Portable native keys can be obtained using platformSafeKey().
+
+  You can call nativeKey() to retrieve the native key.
+
+  \sa nativeKey(), nativeIpcKey(), isAttached()
+*/
+
+/*!
+  \since 6.6
+
+  Sets the native, platform specific, \a key for this shared memory object. If
+  \a key is the same as the current native key, the function returns without
+  doing anything. Otherwise, if the shared memory object is attached to an
+  underlying shared memory segment, it will \l {detach()} {detach} from it
+  before setting the new key. This function does not do an attach().
+
+  This function is useful if the native key was shared from another process.
+  See \l{Native IPC Keys} for more information.
+
+  Portable native keys can be obtained using platformSafeKey().
+
+  You can call nativeKey() to retrieve the native key.
+
+  \sa nativeKey(), nativeIpcKey(), isAttached()
+*/
+void QSharedMemory::setNativeKey(const QNativeIpcKey &key)
+{
+    Q_D(QSharedMemory);
+    if (key == d->nativeKey && key.isEmpty())
+        return;
+    if (!isKeyTypeSupported(key.type())) {
+        d->setError(KeyError, tr("%1: unsupported key type")
+                    .arg("QSharedMemory::setNativeKey"_L1));
+        return;
+    }
+
+    if (isAttached())
+        detach();
+    d->cleanHandle();
+    if (key.type() == d->nativeKey.type()) {
+        // we can reuse the backend
+        d->nativeKey = key;
+    } else {
+        // we must recreate the backend
+        d->destructBackend();
+        d->nativeKey = key;
+        d->constructBackend();
+    }
+}
+
+bool QSharedMemoryPrivate::initKey(SemaphoreAccessMode mode)
+{
+    if (!cleanHandle())
+        return false;
+#if QT_CONFIG(systemsemaphore)
+    systemSemaphore.setNativeKey(semaphoreNativeKey(), 1, mode);
+    if (systemSemaphore.error() != QSystemSemaphore::NoError) {
+        QString function = "QSharedMemoryPrivate::initKey"_L1;
+        errorString = QSharedMemory::tr("%1: unable to set key on lock (%2)")
+                .arg(function, systemSemaphore.errorString());
+        switch(systemSemaphore.error()) {
+        case QSystemSemaphore::PermissionDenied:
+            error = QSharedMemory::PermissionDenied;
+            break;
+        case QSystemSemaphore::KeyError:
+            error = QSharedMemory::KeyError;
+            break;
+        case QSystemSemaphore::AlreadyExists:
+            error = QSharedMemory::AlreadyExists;
+            break;
+        case QSystemSemaphore::NotFound:
+            error = QSharedMemory::NotFound;
+            break;
+        case QSystemSemaphore::OutOfResources:
+            error = QSharedMemory::OutOfResources;
+            break;
+        case QSystemSemaphore::UnknownError:
+        default:
+            error = QSharedMemory::UnknownError;
+            break;
+        }
+        return false;
+    }
+#else
+    Q_UNUSED(mode);
+#endif
+    errorString = QString();
+    error = QSharedMemory::NoError;
+    return true;
+}
+
+#if QT_DEPRECATED_SINCE(6, 10)
+/*!
+  \deprecated
+  Returns the legacy key assigned with setKey() to this shared memory, or a null key
+  if no key has been assigned, or if the segment is using a nativeKey(). The
+  key is the identifier used by Qt applications to identify the shared memory
+  segment.
+
+  You can find the native, platform specific, key used by the operating system
+  by calling nativeKey().
+
+  \sa setKey(), setNativeKey()
+ */
+QString QSharedMemory::key() const
+{
+    Q_D(const QSharedMemory);
+    return QNativeIpcKeyPrivate::legacyKey(d->nativeKey);
+}
+#endif
+
+/*!
+  \since 4.8
+
+  Returns the native, platform specific, key for this shared memory object. The
+  native key is the identifier used by the operating system to identify the
+  shared memory segment.
+
+  You can use the native key to access shared memory segments that have not
+  been created by Qt, or to grant shared memory access to non-Qt applications.
+  See \l{Native IPC Keys} for more information.
+
+  \sa setNativeKey(), nativeIpcKey()
+*/
+QString QSharedMemory::nativeKey() const
+{
+    Q_D(const QSharedMemory);
+    return d->nativeKey.nativeKey();
+}
+
+/*!
+  \since 6.6
+
+  Returns the key type for this shared memory object. The key type complements
+  the nativeKey() as the identifier used by the operating system to identify
+  the shared memory segment.
+
+  You can use the native key to access shared memory segments that have not
+  been created by Qt, or to grant shared memory access to non-Qt applications.
+  See \l{Native IPC Keys} for more information.
+
+  \sa nativeKey(), setNativeKey()
+*/
+QNativeIpcKey QSharedMemory::nativeIpcKey() const
+{
+    Q_D(const QSharedMemory);
+    return d->nativeKey;
+}
+
+/*!
+  Creates a shared memory segment of \a size bytes with the key passed to the
+  constructor or set with setNativeKey(), then attaches to
+  the new shared memory segment with the given access \a mode and returns
+  \tt true. If a shared memory segment identified by the key already exists,
+  the attach operation is not performed and \tt false is returned. When the
+  return value is \tt false, call error() to determine which error occurred.
+
+  \sa error()
+ */
+bool QSharedMemory::create(qsizetype size, AccessMode mode)
+{
+    Q_D(QSharedMemory);
+    QLatin1StringView function = "QSharedMemory::create"_L1;
+
+#if QT_CONFIG(systemsemaphore)
+    if (!d->initKey(QSystemSemaphore::Create))
+        return false;
+    QSharedMemoryLocker lock(this);
+    if (!d->nativeKey.isEmpty() && !d->tryLocker(&lock, function))
+        return false;
+#else
+    if (!d->initKey({}))
+        return false;
+#endif
+
+    if (size <= 0) {
+        d->error = QSharedMemory::InvalidSize;
+        d->errorString =
+            QSharedMemory::tr("%1: create size is less then 0").arg(function);
+        return false;
+    }
+
+    if (!d->create(size))
+        return false;
+
+    return d->attach(mode);
+}
+
+/*!
+  Returns the size of the attached shared memory segment. If no shared
+  memory segment is attached, 0 is returned.
+
+  \note The size of the segment may be larger than the requested size that was
+  passed to create().
+
+  \sa create(), attach()
+ */
+qsizetype QSharedMemory::size() const
+{
+    Q_D(const QSharedMemory);
+    return d->size;
+}
+
+/*!
+  \enum QSharedMemory::AccessMode
+
+  \value ReadOnly The shared memory segment is read-only. Writing to
+  the shared memory segment is not allowed. An attempt to write to a
+  shared memory segment created with ReadOnly causes the program to
+  abort.
+
+  \value ReadWrite Reading and writing the shared memory segment are
+  both allowed.
+*/
+
+/*!
+  Attempts to attach the process to the shared memory segment
+  identified by the key that was passed to the constructor or to a
+  call to setNativeKey(). The access \a mode is \l {QSharedMemory::}
+  {ReadWrite} by default. It can also be \l {QSharedMemory::}
+  {ReadOnly}. Returns \c true if the attach operation is successful. If
+  false is returned, call error() to determine which error occurred.
+  After attaching the shared memory segment, a pointer to the shared
+  memory can be obtained by calling data().
+
+  \sa isAttached(), detach(), create()
+ */
+bool QSharedMemory::attach(AccessMode mode)
+{
+    Q_D(QSharedMemory);
+
+    if (isAttached() || !d->initKey({}))
+        return false;
+#if QT_CONFIG(systemsemaphore)
+    QSharedMemoryLocker lock(this);
+    if (!d->nativeKey.isEmpty() && !d->tryLocker(&lock, "QSharedMemory::attach"_L1))
+        return false;
+#endif
+
+    if (isAttached() || !d->handle())
+        return false;
+
+    return d->attach(mode);
+}
+
+/*!
+  Returns \c true if this process is attached to the shared memory
+  segment.
+
+  \sa attach(), detach()
+ */
+bool QSharedMemory::isAttached() const
+{
+    Q_D(const QSharedMemory);
+    return (nullptr != d->memory);
+}
+
+/*!
+  Detaches the process from the shared memory segment. If this was the
+  last process attached to the shared memory segment, then the shared
+  memory segment is released by the system, i.e., the contents are
+  destroyed. The function returns \c true if it detaches the shared
+  memory segment. If it returns \c false, it usually means the segment
+  either isn't attached, or it is locked by another process.
+
+  \sa attach(), isAttached()
+ */
+bool QSharedMemory::detach()
+{
+    Q_D(QSharedMemory);
+    if (!isAttached())
+        return false;
+
+#if QT_CONFIG(systemsemaphore)
+    QSharedMemoryLocker lock(this);
+    if (!d->nativeKey.isEmpty() && !d->tryLocker(&lock, "QSharedMemory::detach"_L1))
+        return false;
+#endif
+
+    return d->detach();
+}
+
+/*!
+  Returns a pointer to the contents of the shared memory segment, if one is
+  attached. Otherwise it returns null. The value returned by this function will
+  not change until a \l {detach()}{detach} happens, so it is safe to store this
+  pointer.
+
+  If the memory operations are not atomic, you may lock the shared memory with
+  lock() before reading from or writing, but remember to release the lock with
+  unlock() after you are done.
+
+  \sa attach()
+ */
+void *QSharedMemory::data()
+{
+    Q_D(QSharedMemory);
+    return d->memory;
+}
+
+/*!
+  Returns a const pointer to the contents of the shared memory segment, if one
+  is attached. Otherwise it returns null. The value returned by this function
+  will not change until a \l {detach()}{detach} happens, so it is safe to store
+  this pointer.
+
+  If the memory operations are not atomic, you may lock the shared memory with
+  lock() before reading from or writing, but remember to release the lock with
+  unlock() after you are done.
+
+  \sa attach(), create()
+ */
+const void *QSharedMemory::constData() const
+{
+    Q_D(const QSharedMemory);
+    return d->memory;
+}
+
+/*!
+  \overload data()
+ */
+const void *QSharedMemory::data() const
+{
+    Q_D(const QSharedMemory);
+    return d->memory;
+}
+
+#if QT_CONFIG(systemsemaphore)
+/*!
+  This is a semaphore that locks the shared memory segment for access
+  by this process and returns \c true. If another process has locked the
+  segment, this function blocks until the lock is released. Then it
+  acquires the lock and returns \c true. If this function returns \c false,
+  it means that you have ignored a false return from create() or attach(),
+  that you have set the key with setNativeKey() or that
+  QSystemSemaphore::acquire() failed due to an unknown system error.
+
+  \sa unlock(), data(), QSystemSemaphore::acquire()
+ */
+bool QSharedMemory::lock()
+{
+    Q_D(QSharedMemory);
+    if (d->lockedByMe) {
+        qWarning("QSharedMemory::lock: already locked");
+        return true;
+    }
+    if (d->systemSemaphore.acquire()) {
+        d->lockedByMe = true;
+        return true;
+    }
+    const auto function = "QSharedMemory::lock"_L1;
+    d->errorString = QSharedMemory::tr("%1: unable to lock").arg(function);
+    d->error = QSharedMemory::LockError;
+    return false;
+}
+
+/*!
+  Releases the lock on the shared memory segment and returns \c true, if
+  the lock is currently held by this process. If the segment is not
+  locked, or if the lock is held by another process, nothing happens
+  and false is returned.
+
+  \sa lock()
+ */
+bool QSharedMemory::unlock()
+{
+    Q_D(QSharedMemory);
+    if (!d->lockedByMe)
+        return false;
+    d->lockedByMe = false;
+    if (d->systemSemaphore.release())
+        return true;
+    const auto function = "QSharedMemory::unlock"_L1;
+    d->errorString = QSharedMemory::tr("%1: unable to unlock").arg(function);
+    d->error = QSharedMemory::LockError;
+    return false;
+}
+#endif // QT_CONFIG(systemsemaphore)
+
+/*!
+  \enum QSharedMemory::SharedMemoryError
+
+  \value NoError No error occurred.
+
+  \value PermissionDenied The operation failed because the caller
+  didn't have the required permissions.
+
+  \value InvalidSize A create operation failed because the requested
+  size was invalid.
+
+  \value KeyError The operation failed because of an invalid key.
+
+  \value AlreadyExists A create() operation failed because a shared
+  memory segment with the specified key already existed.
+
+  \value NotFound An attach() failed because a shared memory segment
+  with the specified key could not be found.
+
+  \value LockError The attempt to lock() the shared memory segment
+  failed because create() or attach() failed and returned false, or
+  because a system error occurred in QSystemSemaphore::acquire().
+
+  \value OutOfResources A create() operation failed because there was
+  not enough memory available to fill the request.
+
+  \value UnknownError Something else happened and it was bad.
+*/
+
+/*!
+  Returns a value indicating whether an error occurred, and, if so,
+  which error it was.
+
+  \sa errorString()
+ */
+QSharedMemory::SharedMemoryError QSharedMemory::error() const
+{
+    Q_D(const QSharedMemory);
+    return d->error;
+}
+
+/*!
+  Returns a text description of the last error that occurred. If
+  error() returns an \l {QSharedMemory::SharedMemoryError} {error
+  value}, call this function to get a text string that describes the
+  error.
+
+  \sa error()
+ */
+QString QSharedMemory::errorString() const
+{
+    Q_D(const QSharedMemory);
+    return d->errorString;
+}
+
+void QSharedMemoryPrivate::setUnixErrorString(QLatin1StringView function)
+{
+    // EINVAL is handled in functions so they can give better error strings
+    switch (errno) {
+    case EACCES:
+        errorString = QSharedMemory::tr("%1: permission denied").arg(function);
+        error = QSharedMemory::PermissionDenied;
+        break;
+    case EEXIST:
+        errorString = QSharedMemory::tr("%1: already exists").arg(function);
+        error = QSharedMemory::AlreadyExists;
+        break;
+    case ENOENT:
+        errorString = QSharedMemory::tr("%1: doesn't exist").arg(function);
+        error = QSharedMemory::NotFound;
+        break;
+    case EMFILE:
+    case ENOMEM:
+    case ENOSPC:
+        errorString = QSharedMemory::tr("%1: out of resources").arg(function);
+        error = QSharedMemory::OutOfResources;
+        break;
+    default:
+        errorString = QSharedMemory::tr("%1: unknown error: %2")
+                .arg(function, qt_error_string(errno));
+        error = QSharedMemory::UnknownError;
+#if defined QSHAREDMEMORY_DEBUG
+        qDebug() << errorString << "key" << key << "errno" << errno << EINVAL;
+#endif
+    }
+}
+
+bool QSharedMemory::isKeyTypeSupported(QNativeIpcKey::Type type)
+{
+    if (!isIpcSupported(IpcType::SharedMemory, type))
+        return false;
+    using Variant = decltype(QSharedMemoryPrivate::backend);
+    return Variant::staticVisit(type, [](auto ptr) {
+        using Impl = std::decay_t<decltype(*ptr)>;
+        return Impl::runtimeSupportCheck();
+    });
+}
+
+QNativeIpcKey QSharedMemory::platformSafeKey(const QString &key, QNativeIpcKey::Type type)
+{
+    return QtIpcCommon::platformSafeKey(key, IpcType::SharedMemory, type);
+}
+
+QNativeIpcKey QSharedMemory::legacyNativeKey(const QString &key, QNativeIpcKey::Type type)
+{
+    return QtIpcCommon::legacyPlatformSafeKey(key, IpcType::SharedMemory, type);
+}
+
+#endif // QT_CONFIG(sharedmemory)
+
+QT_END_NAMESPACE
+
+#include "moc_qsharedmemory.cpp"
diff --git a/src/corelib/kernel/qsharedmemory.h b/src/corelib/ipc/qsharedmemory.h
similarity index 60%
rename from src/corelib/kernel/qsharedmemory.h
rename to src/corelib/ipc/qsharedmemory.h
index 653fb1fb..f8218cb0 100644
--- a/src/corelib/kernel/qsharedmemory.h
+++ b/src/corelib/ipc/qsharedmemory.h
@@ -4,7 +4,7 @@
 #ifndef QSHAREDMEMORY_H
 #define QSHAREDMEMORY_H
 
-#include <QtCore/qglobal.h>
+#include <QtCore/qtipccommon.h>
 #ifndef QT_NO_QOBJECT
 # include <QtCore/qobject.h>
 #else
@@ -12,8 +12,8 @@
 # include <QtCore/qscopedpointer.h>
 # include <QtCore/qstring.h>
 #endif
-QT_BEGIN_NAMESPACE
 
+QT_BEGIN_NAMESPACE
 
 #if QT_CONFIG(sharedmemory)
 
@@ -30,6 +30,7 @@ public:
         ReadOnly,
         ReadWrite
     };
+    Q_ENUM(AccessMode)
 
     enum SharedMemoryError
     {
@@ -43,15 +44,29 @@ public:
         OutOfResources,
         UnknownError
     };
+    Q_ENUM(SharedMemoryError)
 
     QSharedMemory(QObject *parent = nullptr);
-    QSharedMemory(const QString &key, QObject *parent = nullptr);
+    QSharedMemory(const QNativeIpcKey &key, QObject *parent = nullptr);
     ~QSharedMemory();
 
+#if QT_DEPRECATED_SINCE(6, 10)
+    QT_DEPRECATED_VERSION_X_6_10("Please refer to 'Native IPC Key' documentation")
+    QSharedMemory(const QString &key, QObject *parent = nullptr);
+    QT_DEPRECATED_VERSION_X_6_10("Please refer to 'Native IPC Key' documentation")
     void setKey(const QString &key);
+    QT_DEPRECATED_VERSION_X_6_10("Please refer to 'Native IPC Key' documentation")
     QString key() const;
-    void setNativeKey(const QString &key);
+#endif
+
+    void setNativeKey(const QNativeIpcKey &key);
+    void setNativeKey(const QString &key, QNativeIpcKey::Type type = QNativeIpcKey::legacyDefaultTypeForOs())
+    { setNativeKey({ key, type }); }
     QString nativeKey() const;
+    QNativeIpcKey nativeIpcKey() const;
+#if QT_CORE_REMOVED_SINCE(6, 5)
+    void setNativeKey(const QString &key);
+#endif
 
     bool create(qsizetype size, AccessMode mode = ReadWrite);
     qsizetype size() const;
@@ -72,6 +87,12 @@ public:
     SharedMemoryError error() const;
     QString errorString() const;
 
+    static bool isKeyTypeSupported(QNativeIpcKey::Type type) Q_DECL_CONST_FUNCTION;
+    static QNativeIpcKey platformSafeKey(const QString &key,
+            QNativeIpcKey::Type type = QNativeIpcKey::DefaultTypeForOs);
+    static QNativeIpcKey legacyNativeKey(const QString &key,
+            QNativeIpcKey::Type type = QNativeIpcKey::legacyDefaultTypeForOs());
+
 private:
     Q_DISABLE_COPY(QSharedMemory)
 };
@@ -81,4 +102,3 @@ private:
 QT_END_NAMESPACE
 
 #endif // QSHAREDMEMORY_H
-
diff --git a/src/corelib/ipc/qsharedmemory_p.h b/src/corelib/ipc/qsharedmemory_p.h
new file mode 100644
index 00000000..987bb386
--- /dev/null
+++ b/src/corelib/ipc/qsharedmemory_p.h
@@ -0,0 +1,215 @@
+// Copyright (C) 2016 The Qt Company Ltd.
+// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
+
+#ifndef QSHAREDMEMORY_P_H
+#define QSHAREDMEMORY_P_H
+
+//
+//  W A R N I N G
+//  -------------
+//
+// This file is not part of the Qt API.  It exists purely as an
+// implementation detail.  This header file may change from version to
+// version without notice, or even be removed.
+//
+// We mean it.
+//
+
+#include "qsharedmemory.h"
+
+#include <QtCore/qstring.h>
+
+#if QT_CONFIG(sharedmemory)
+#include "qsystemsemaphore.h"
+#include "qtipccommon_p.h"
+#include "private/qobject_p.h"
+
+#if QT_CONFIG(posix_shm)
+#  include <sys/mman.h>
+#endif
+#if QT_CONFIG(sysv_shm)
+#  include <sys/shm.h>
+#endif
+
+QT_BEGIN_NAMESPACE
+
+class QSharedMemoryPrivate;
+
+#if QT_CONFIG(systemsemaphore)
+/*!
+  Helper class
+  */
+class QSharedMemoryLocker
+{
+
+public:
+    Q_NODISCARD_CTOR QSharedMemoryLocker(QSharedMemory *sharedMemory) : q_sm(sharedMemory)
+    {
+        Q_ASSERT(q_sm);
+    }
+
+    inline ~QSharedMemoryLocker()
+    {
+        if (q_sm)
+            q_sm->unlock();
+    }
+
+    inline bool lock()
+    {
+        if (q_sm && q_sm->lock())
+            return true;
+        q_sm = nullptr;
+        return false;
+    }
+
+private:
+    QSharedMemory *q_sm;
+};
+#endif // QT_CONFIG(systemsemaphore)
+
+class QSharedMemoryPosix
+{
+public:
+    static constexpr bool Enabled = QT_CONFIG(posix_shm);
+    static bool supports(QNativeIpcKey::Type type)
+    { return type == QNativeIpcKey::Type::PosixRealtime; }
+    static bool runtimeSupportCheck();
+
+    bool handle(QSharedMemoryPrivate *self);
+    bool cleanHandle(QSharedMemoryPrivate *self);
+    bool create(QSharedMemoryPrivate *self, qsizetype size);
+    bool attach(QSharedMemoryPrivate *self, QSharedMemory::AccessMode mode);
+    bool detach(QSharedMemoryPrivate *self);
+
+    int hand = -1;
+};
+
+class QSharedMemorySystemV
+{
+public:
+    static constexpr bool Enabled = QT_CONFIG(sysv_shm);
+    static bool supports(QNativeIpcKey::Type type)
+    { return quint16(type) <= 0xff; }
+    static bool runtimeSupportCheck();
+
+#if QT_CONFIG(sysv_sem)
+    key_t handle(QSharedMemoryPrivate *self);
+    bool cleanHandle(QSharedMemoryPrivate *self);
+    bool create(QSharedMemoryPrivate *self, qsizetype size);
+    bool attach(QSharedMemoryPrivate *self, QSharedMemory::AccessMode mode);
+    bool detach(QSharedMemoryPrivate *self);
+
+private:
+    void updateNativeKeyFile(const QNativeIpcKey &nativeKey);
+
+    QByteArray nativeKeyFile;
+    key_t unix_key = 0;
+#endif
+};
+
+class QSharedMemoryWin32
+{
+public:
+#ifdef Q_OS_WIN32
+    static constexpr bool Enabled = true;
+#else
+    static constexpr bool Enabled = false;
+#endif
+    static bool runtimeSupportCheck() { return Enabled; }
+    static bool supports(QNativeIpcKey::Type type)
+    { return type == QNativeIpcKey::Type::Windows; }
+
+    Qt::HANDLE handle(QSharedMemoryPrivate *self);
+    bool cleanHandle(QSharedMemoryPrivate *self);
+    bool create(QSharedMemoryPrivate *self, qsizetype size);
+    bool attach(QSharedMemoryPrivate *self, QSharedMemory::AccessMode mode);
+    bool detach(QSharedMemoryPrivate *self);
+
+    Qt::HANDLE hand = nullptr;
+};
+
+class Q_AUTOTEST_EXPORT QSharedMemoryPrivate : public QObjectPrivate
+{
+    Q_DECLARE_PUBLIC(QSharedMemory)
+
+public:
+    QSharedMemoryPrivate(QNativeIpcKey::Type type) : nativeKey(type)
+    { constructBackend(); }
+    ~QSharedMemoryPrivate();
+
+    void *memory = nullptr;
+    qsizetype size = 0;
+    QNativeIpcKey nativeKey;
+    QString errorString;
+#if QT_CONFIG(systemsemaphore)
+    using SemaphoreAccessMode = QSystemSemaphore::AccessMode;
+    QSystemSemaphore systemSemaphore{ QNativeIpcKey() };
+    bool lockedByMe = false;
+#else
+    enum SemaphoreAccessMode {};
+#endif
+    QSharedMemory::SharedMemoryError error = QSharedMemory::NoError;
+
+    union Backend {
+        Backend() {}
+        ~Backend() {}
+        QSharedMemoryPosix posix;
+        QSharedMemorySystemV sysv;
+        QSharedMemoryWin32 win32;
+    };
+    QtIpcCommon::IpcStorageVariant<&Backend::posix, &Backend::sysv, &Backend::win32> backend;
+
+    void constructBackend();
+    void destructBackend();
+    bool initKey(SemaphoreAccessMode mode);
+
+    template <typename Lambda> auto visit(const Lambda &lambda)
+    {
+        return backend.visit(nativeKey.type(), lambda);
+    }
+
+    bool handle()
+    {
+        return visit([&](auto p) { return !!p->handle(this); });
+    }
+    bool cleanHandle()
+    {
+        return visit([&](auto p) { return p->cleanHandle(this); });
+    }
+    bool create(qsizetype size)
+    {
+        return visit([&](auto p) { return p->create(this, size); });
+    }
+    bool attach(QSharedMemory::AccessMode mode)
+    {
+        return visit([&](auto p) { return p->attach(this, mode); });
+    }
+    bool detach()
+    {
+        return visit([&](auto p) { return p->detach(this); });
+    }
+
+    inline void setError(QSharedMemory::SharedMemoryError e, const QString &message)
+    { error = e; errorString = message; }
+    void setUnixErrorString(QLatin1StringView function);
+    void setWindowsErrorString(QLatin1StringView function);
+
+#if QT_CONFIG(systemsemaphore)
+    bool tryLocker(QSharedMemoryLocker *locker, const QString &function) {
+        if (!locker->lock()) {
+            errorString = QSharedMemory::tr("%1: unable to lock").arg(function);
+            error = QSharedMemory::LockError;
+            return false;
+        }
+        return true;
+    }
+    QNativeIpcKey semaphoreNativeKey() const;
+#endif // QT_CONFIG(systemsemaphore)
+};
+
+QT_END_NAMESPACE
+
+#endif // QT_CONFIG(sharedmemory)
+
+#endif // QSHAREDMEMORY_P_H
+
diff --git a/src/corelib/kernel/qsharedmemory_posix.cpp b/src/corelib/ipc/qsharedmemory_posix.cpp
similarity index 58%
rename from src/corelib/kernel/qsharedmemory_posix.cpp
rename to src/corelib/ipc/qsharedmemory_posix.cpp
index ac316b9d..88448100 100644
--- a/src/corelib/kernel/qsharedmemory_posix.cpp
+++ b/src/corelib/ipc/qsharedmemory_posix.cpp
@@ -3,18 +3,15 @@
 // Copyright (C) 2015 Klarälvdalens Datakonsult AB, a KDAB Group company, info@kdab.com, author Tobias Koenig <tobias.koenig@kdab.com>
 // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
 
-#include "qplatformdefs.h"
-
 #include "qsharedmemory.h"
 #include "qsharedmemory_p.h"
-#include "qsystemsemaphore.h"
+#include "qtipccommon_p.h"
 #include <qfile.h>
 
 #include <errno.h>
 
-#ifdef QT_POSIX_IPC
-
 #if QT_CONFIG(sharedmemory)
+#if QT_CONFIG(posix_shm)
 #include <sys/types.h>
 #include <sys/mman.h>
 #include <sys/stat.h>
@@ -23,57 +20,64 @@
 
 #include "private/qcore_unix_p.h"
 
+#ifndef O_CLOEXEC
+#  define O_CLOEXEC 0
+#endif
+
 QT_BEGIN_NAMESPACE
 
 using namespace Qt::StringLiterals;
+using namespace QtIpcCommon;
 
-int QSharedMemoryPrivate::handle()
+bool QSharedMemoryPosix::runtimeSupportCheck()
 {
-    // don't allow making handles on empty keys
-    const QString safeKey = makePlatformSafeKey(key);
-    if (safeKey.isEmpty()) {
-        errorString = QSharedMemory::tr("%1: key is empty").arg("QSharedMemory::handle"_L1);
-        error = QSharedMemory::KeyError;
-        return 0;
-    }
-
-    return 1;
+    static const bool result = []() {
+        (void)shm_open("", 0, 0);         // this WILL fail
+        return errno != ENOSYS;
+    }();
+    return result;
 }
 
-bool QSharedMemoryPrivate::cleanHandle()
+bool QSharedMemoryPosix::handle(QSharedMemoryPrivate *self)
 {
-    qt_safe_close(hand);
+    // don't allow making handles on empty keys
+    if (self->nativeKey.isEmpty()) {
+        self->setError(QSharedMemory::KeyError,
+                       QSharedMemory::tr("%1: key is empty").arg("QSharedMemory::handle"_L1));
+        return false;
+    }
+
+    return true;
+}
+
+bool QSharedMemoryPosix::cleanHandle(QSharedMemoryPrivate *)
+{
+    if (hand != -1)
+        qt_safe_close(hand);
     hand = -1;
 
     return true;
 }
 
-bool QSharedMemoryPrivate::create(qsizetype size)
+bool QSharedMemoryPosix::create(QSharedMemoryPrivate *self, qsizetype size)
 {
-    if (!handle())
+    if (!handle(self))
         return false;
 
-    const QByteArray shmName = QFile::encodeName(makePlatformSafeKey(key));
+    const QByteArray shmName = QFile::encodeName(self->nativeKey.nativeKey());
 
     int fd;
-#ifdef O_CLOEXEC
-    // First try with O_CLOEXEC flag, if that fails, fall back to normal flags
     EINTR_LOOP(fd, ::shm_open(shmName.constData(), O_RDWR | O_CREAT | O_EXCL | O_CLOEXEC, 0600));
-    if (fd == -1)
-        EINTR_LOOP(fd, ::shm_open(shmName.constData(), O_RDWR | O_CREAT | O_EXCL, 0600));
-#else
-    EINTR_LOOP(fd, ::shm_open(shmName.constData(), O_RDWR | O_CREAT | O_EXCL, 0600));
-#endif
     if (fd == -1) {
         const int errorNumber = errno;
         const auto function = "QSharedMemory::attach (shm_open)"_L1;
         switch (errorNumber) {
         case EINVAL:
-            errorString = QSharedMemory::tr("%1: bad name").arg(function);
-            error = QSharedMemory::KeyError;
+            self->setError(QSharedMemory::KeyError,
+                           QSharedMemory::tr("%1: bad name").arg(function));
             break;
         default:
-            setErrorString(function);
+            self->setUnixErrorString(function);
         }
         return false;
     }
@@ -82,7 +86,7 @@ bool QSharedMemoryPrivate::create(qsizetype size)
     int ret;
     EINTR_LOOP(ret, QT_FTRUNCATE(fd, size));
     if (ret == -1) {
-        setErrorString("QSharedMemory::create (ftruncate)"_L1);
+        self->setUnixErrorString("QSharedMemory::create (ftruncate)"_L1);
         qt_safe_close(fd);
         return false;
     }
@@ -92,31 +96,24 @@ bool QSharedMemoryPrivate::create(qsizetype size)
     return true;
 }
 
-bool QSharedMemoryPrivate::attach(QSharedMemory::AccessMode mode)
+bool QSharedMemoryPosix::attach(QSharedMemoryPrivate *self, QSharedMemory::AccessMode mode)
 {
-    const QByteArray shmName = QFile::encodeName(makePlatformSafeKey(key));
+    const QByteArray shmName = QFile::encodeName(self->nativeKey.nativeKey());
 
     const int oflag = (mode == QSharedMemory::ReadOnly ? O_RDONLY : O_RDWR);
     const mode_t omode = (mode == QSharedMemory::ReadOnly ? 0400 : 0600);
 
-#ifdef O_CLOEXEC
-    // First try with O_CLOEXEC flag, if that fails, fall back to normal flags
     EINTR_LOOP(hand, ::shm_open(shmName.constData(), oflag | O_CLOEXEC, omode));
-    if (hand == -1)
-        EINTR_LOOP(hand, ::shm_open(shmName.constData(), oflag, omode));
-#else
-    EINTR_LOOP(hand, ::shm_open(shmName.constData(), oflag, omode));
-#endif
     if (hand == -1) {
         const int errorNumber = errno;
         const auto function = "QSharedMemory::attach (shm_open)"_L1;
         switch (errorNumber) {
         case EINVAL:
-            errorString = QSharedMemory::tr("%1: bad name").arg(function);
-            error = QSharedMemory::KeyError;
+            self->setError(QSharedMemory::KeyError,
+                           QSharedMemory::tr("%1: bad name").arg(function));
             break;
         default:
-            setErrorString(function);
+            self->setUnixErrorString(function);
         }
         hand = -1;
         return false;
@@ -125,20 +122,20 @@ bool QSharedMemoryPrivate::attach(QSharedMemory::AccessMode mode)
     // grab the size
     QT_STATBUF st;
     if (QT_FSTAT(hand, &st) == -1) {
-        setErrorString("QSharedMemory::attach (fstat)"_L1);
-        cleanHandle();
+        self->setUnixErrorString("QSharedMemory::attach (fstat)"_L1);
+        cleanHandle(self);
         return false;
     }
-    size = qsizetype(st.st_size);
+    self->size = qsizetype(st.st_size);
 
     // grab the memory
     const int mprot = (mode == QSharedMemory::ReadOnly ? PROT_READ : PROT_READ | PROT_WRITE);
-    memory = QT_MMAP(0, size_t(size), mprot, MAP_SHARED, hand, 0);
-    if (memory == MAP_FAILED || !memory) {
-        setErrorString("QSharedMemory::attach (mmap)"_L1);
-        cleanHandle();
-        memory = 0;
-        size = 0;
+    self->memory = QT_MMAP(0, size_t(self->size), mprot, MAP_SHARED, hand, 0);
+    if (self->memory == MAP_FAILED || !self->memory) {
+        self->setUnixErrorString("QSharedMemory::attach (mmap)"_L1);
+        cleanHandle(self);
+        self->memory = 0;
+        self->size = 0;
         return false;
     }
 
@@ -152,15 +149,15 @@ bool QSharedMemoryPrivate::attach(QSharedMemory::AccessMode mode)
     return true;
 }
 
-bool QSharedMemoryPrivate::detach()
+bool QSharedMemoryPosix::detach(QSharedMemoryPrivate *self)
 {
     // detach from the memory segment
-    if (::munmap(memory, size_t(size)) == -1) {
-        setErrorString("QSharedMemory::detach (munmap)"_L1);
+    if (::munmap(self->memory, size_t(self->size)) == -1) {
+        self->setUnixErrorString("QSharedMemory::detach (munmap)"_L1);
         return false;
     }
-    memory = 0;
-    size = 0;
+    self->memory = 0;
+    self->size = 0;
 
 #ifdef Q_OS_QNX
     // On QNX the st_nlink field of struct stat contains the number of
@@ -176,18 +173,18 @@ bool QSharedMemoryPrivate::detach()
         shm_nattch = st.st_nlink - 2;
     }
 
-    cleanHandle();
+    cleanHandle(self);
 
     // if there are no attachments then unlink the shared memory
     if (shm_nattch == 0) {
-        const QByteArray shmName = QFile::encodeName(makePlatformSafeKey(key));
+        const QByteArray shmName = QFile::encodeName(self->nativeKey.nativeKey());
         if (::shm_unlink(shmName.constData()) == -1 && errno != ENOENT)
-            setErrorString("QSharedMemory::detach (shm_unlink)"_L1);
+            self->setUnixErrorString("QSharedMemory::detach (shm_unlink)"_L1);
     }
 #else
     // On non-QNX systems (tested Linux and Haiku), the st_nlink field is always 1,
     // so we'll simply leak the shared memory files.
-    cleanHandle();
+    cleanHandle(self);
 #endif
 
     return true;
@@ -195,6 +192,5 @@ bool QSharedMemoryPrivate::detach()
 
 QT_END_NAMESPACE
 
+#endif // QT_CONFIG(posix_shm)
 #endif // QT_CONFIG(sharedmemory)
-
-#endif // QT_POSIX_IPC
diff --git a/src/corelib/ipc/qsharedmemory_systemv.cpp b/src/corelib/ipc/qsharedmemory_systemv.cpp
new file mode 100644
index 00000000..716b7aed
--- /dev/null
+++ b/src/corelib/ipc/qsharedmemory_systemv.cpp
@@ -0,0 +1,209 @@
+// Copyright (C) 2016 The Qt Company Ltd.
+// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
+
+#include "qsharedmemory.h"
+#include "qsharedmemory_p.h"
+
+#include "qtipccommon_p.h"
+
+#include <qdir.h>
+#include <qdebug.h>
+
+#include <errno.h>
+
+#if QT_CONFIG(sharedmemory)
+#if QT_CONFIG(sysv_shm)
+#include <sys/types.h>
+#include <sys/ipc.h>
+#include <sys/mman.h>
+#include <sys/shm.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+#include <unistd.h>
+
+#include "private/qcore_unix_p.h"
+#if defined(Q_OS_DARWIN)
+#include "private/qcore_mac_p.h"
+#endif
+
+QT_BEGIN_NAMESPACE
+
+using namespace Qt::StringLiterals;
+using namespace QtIpcCommon;
+
+bool QSharedMemorySystemV::runtimeSupportCheck()
+{
+#if defined(Q_OS_DARWIN)
+    if (qt_apple_isSandboxed())
+        return false;
+#endif
+    static const bool result = []() {
+        (void)shmget(IPC_PRIVATE, ~size_t(0), 0);     // this will fail
+        return errno != ENOSYS;
+    }();
+    return result;
+}
+
+
+inline void QSharedMemorySystemV::updateNativeKeyFile(const QNativeIpcKey &nativeKey)
+{
+    Q_ASSERT(nativeKeyFile.isEmpty() );
+    if (!nativeKey.nativeKey().isEmpty())
+        nativeKeyFile = QFile::encodeName(nativeKey.nativeKey());
+}
+
+/*!
+    \internal
+
+    If not already made create the handle used for accessing the shared memory.
+*/
+key_t QSharedMemorySystemV::handle(QSharedMemoryPrivate *self)
+{
+    // already made
+    if (unix_key)
+        return unix_key;
+
+    // don't allow making handles on empty keys
+    if (nativeKeyFile.isEmpty())
+        updateNativeKeyFile(self->nativeKey);
+    if (nativeKeyFile.isEmpty()) {
+        self->setError(QSharedMemory::KeyError,
+                       QSharedMemory::tr("%1: key is empty")
+                       .arg("QSharedMemory::handle:"_L1));
+        return 0;
+    }
+
+    unix_key = ftok(nativeKeyFile, int(self->nativeKey.type()));
+    if (unix_key < 0) {
+        self->setUnixErrorString("QSharedMemory::handle"_L1);
+        unix_key = 0;
+    }
+    return unix_key;
+}
+
+bool QSharedMemorySystemV::cleanHandle(QSharedMemoryPrivate *self)
+{
+    if (unix_key == 0)
+        return true;
+
+    // Get the number of current attachments
+    struct shmid_ds shmid_ds;
+    QByteArray keyfile = std::exchange(nativeKeyFile, QByteArray());
+
+    int id = shmget(unix_key, 0, 0400);
+    unix_key = 0;
+    if (shmctl(id, IPC_STAT, &shmid_ds))
+        return errno != EINVAL;
+
+    // If there are still attachments, keep the keep file and shm
+    if (shmid_ds.shm_nattch != 0)
+        return true;
+
+    if (shmctl(id, IPC_RMID, &shmid_ds) < 0) {
+        if (errno != EINVAL) {
+            self->setUnixErrorString("QSharedMemory::remove"_L1);
+            return false;
+        }
+    };
+
+    // remove file
+    return unlink(keyfile) == 0;
+}
+
+bool QSharedMemorySystemV::create(QSharedMemoryPrivate *self, qsizetype size)
+{
+    // build file if needed
+    bool createdFile = false;
+    updateNativeKeyFile(self->nativeKey);
+    int built = createUnixKeyFile(nativeKeyFile);
+    if (built == -1) {
+        self->setError(QSharedMemory::KeyError,
+                       QSharedMemory::tr("%1: unable to make key")
+                       .arg("QSharedMemory::handle:"_L1));
+        return false;
+    }
+    if (built == 1) {
+        createdFile = true;
+    }
+
+    // get handle
+    if (!handle(self)) {
+        if (createdFile)
+            unlink(nativeKeyFile);
+        return false;
+    }
+
+    // create
+    if (-1 == shmget(unix_key, size_t(size), 0600 | IPC_CREAT | IPC_EXCL)) {
+        const auto function = "QSharedMemory::create"_L1;
+        switch (errno) {
+        case EINVAL:
+            self->setError(QSharedMemory::InvalidSize,
+                           QSharedMemory::tr("%1: system-imposed size restrictions")
+                           .arg("QSharedMemory::handle"_L1));
+            break;
+        default:
+            self->setUnixErrorString(function);
+        }
+        if (createdFile && self->error != QSharedMemory::AlreadyExists)
+            unlink(nativeKeyFile);
+        return false;
+    }
+
+    return true;
+}
+
+bool QSharedMemorySystemV::attach(QSharedMemoryPrivate *self, QSharedMemory::AccessMode mode)
+{
+    // grab the shared memory segment id
+    int id = shmget(unix_key, 0, (mode == QSharedMemory::ReadOnly ? 0400 : 0600));
+    if (-1 == id) {
+        self->setUnixErrorString("QSharedMemory::attach (shmget)"_L1);
+        return false;
+    }
+
+    // grab the memory
+    self->memory = shmat(id, nullptr, (mode == QSharedMemory::ReadOnly ? SHM_RDONLY : 0));
+    if (self->memory == MAP_FAILED) {
+        self->memory = nullptr;
+        self->setUnixErrorString("QSharedMemory::attach (shmat)"_L1);
+        return false;
+    }
+
+    // grab the size
+    shmid_ds shmid_ds;
+    if (!shmctl(id, IPC_STAT, &shmid_ds)) {
+        self->size = (qsizetype)shmid_ds.shm_segsz;
+    } else {
+        self->setUnixErrorString("QSharedMemory::attach (shmctl)"_L1);
+        return false;
+    }
+
+    return true;
+}
+
+bool QSharedMemorySystemV::detach(QSharedMemoryPrivate *self)
+{
+    // detach from the memory segment
+    if (shmdt(self->memory) < 0) {
+        const auto function = "QSharedMemory::detach"_L1;
+        switch (errno) {
+        case EINVAL:
+            self->setError(QSharedMemory::NotFound,
+                           QSharedMemory::tr("%1: not attached").arg(function));
+            break;
+        default:
+            self->setUnixErrorString(function);
+        }
+        return false;
+    }
+    self->memory = nullptr;
+    self->size = 0;
+
+    return cleanHandle(self);
+}
+
+QT_END_NAMESPACE
+
+#endif // QT_CONFIG(sysv_shm)
+#endif // QT_CONFIG(sharedmemory)
diff --git a/src/corelib/kernel/qsharedmemory_win.cpp b/src/corelib/ipc/qsharedmemory_win.cpp
similarity index 61%
rename from src/corelib/kernel/qsharedmemory_win.cpp
rename to src/corelib/ipc/qsharedmemory_win.cpp
index bf8c625b..472f34f9 100644
--- a/src/corelib/kernel/qsharedmemory_win.cpp
+++ b/src/corelib/ipc/qsharedmemory_win.cpp
@@ -13,7 +13,7 @@ using namespace Qt::StringLiterals;
 
 #if QT_CONFIG(sharedmemory)
 
-void QSharedMemoryPrivate::setErrorString(QLatin1StringView function)
+void QSharedMemoryPrivate::setWindowsErrorString(QLatin1StringView function)
 {
     DWORD windowsError = GetLastError();
     if (windowsError == 0)
@@ -41,7 +41,8 @@ void QSharedMemoryPrivate::setErrorString(QLatin1StringView function)
         errorString = QSharedMemory::tr("%1: permission denied").arg(function);
         break;
     default:
-        errorString = QSharedMemory::tr("%1: unknown error %2").arg(function).arg(windowsError);
+        errorString = QSharedMemory::tr("%1: unknown error: %2")
+                .arg(function, qt_error_string(windowsError));
         error = QSharedMemory::UnknownError;
 #if defined QSHAREDMEMORY_DEBUG
         qDebug() << errorString << "key" << key;
@@ -49,42 +50,41 @@ void QSharedMemoryPrivate::setErrorString(QLatin1StringView function)
     }
 }
 
-HANDLE QSharedMemoryPrivate::handle()
+HANDLE QSharedMemoryWin32::handle(QSharedMemoryPrivate *self)
 {
     if (!hand) {
         const auto function = "QSharedMemory::handle"_L1;
-        if (nativeKey.isEmpty()) {
-            error = QSharedMemory::KeyError;
-            errorString = QSharedMemory::tr("%1: unable to make key").arg(function);
+        if (self->nativeKey.isEmpty()) {
+            self->setError(QSharedMemory::KeyError,
+                           QSharedMemory::tr("%1: unable to make key").arg(function));
             return 0;
         }
         hand = OpenFileMapping(FILE_MAP_ALL_ACCESS, false,
-                               reinterpret_cast<const wchar_t *>(nativeKey.utf16()));
+                               reinterpret_cast<const wchar_t *>(self->nativeKey.nativeKey().utf16()));
         if (!hand) {
-            setErrorString(function);
+            self->setWindowsErrorString(function);
             return 0;
         }
     }
     return hand;
 }
 
-bool QSharedMemoryPrivate::cleanHandle()
+bool QSharedMemoryWin32::cleanHandle(QSharedMemoryPrivate *)
 {
     if (hand != 0 && !CloseHandle(hand)) {
         hand = 0;
-        setErrorString("QSharedMemory::cleanHandle"_L1);
         return false;
     }
     hand = 0;
     return true;
 }
 
-bool QSharedMemoryPrivate::create(qsizetype size)
+bool QSharedMemoryWin32::create(QSharedMemoryPrivate *self, qsizetype size)
 {
     const auto function = "QSharedMemory::create"_L1;
-    if (nativeKey.isEmpty()) {
-        error = QSharedMemory::KeyError;
-        errorString = QSharedMemory::tr("%1: key error").arg(function);
+    if (self->nativeKey.isEmpty()) {
+        self->setError(QSharedMemory::KeyError,
+                       QSharedMemory::tr("%1: key error").arg(function));
         return false;
     }
 
@@ -96,50 +96,51 @@ bool QSharedMemoryPrivate::create(qsizetype size)
         high = 0;
     low = DWORD(size_t(size) & 0xffffffff);
     hand = CreateFileMapping(INVALID_HANDLE_VALUE, 0, PAGE_READWRITE, high, low,
-                             reinterpret_cast<const wchar_t *>(nativeKey.utf16()));
-    setErrorString(function);
+                             reinterpret_cast<const wchar_t *>(self->nativeKey.nativeKey().utf16()));
+    self->setWindowsErrorString(function);
 
     // hand is valid when it already exists unlike unix so explicitly check
-    return error != QSharedMemory::AlreadyExists && hand;
+    return self->error != QSharedMemory::AlreadyExists && hand;
 }
 
-bool QSharedMemoryPrivate::attach(QSharedMemory::AccessMode mode)
+bool QSharedMemoryWin32::attach(QSharedMemoryPrivate *self, QSharedMemory::AccessMode mode)
 {
     // Grab a pointer to the memory block
     int permissions = (mode == QSharedMemory::ReadOnly ? FILE_MAP_READ : FILE_MAP_ALL_ACCESS);
-    memory = (void *)MapViewOfFile(handle(), permissions, 0, 0, 0);
-    if (0 == memory) {
-        setErrorString("QSharedMemory::attach"_L1);
-        cleanHandle();
+    self->memory = (void *)MapViewOfFile(handle(self), permissions, 0, 0, 0);
+    if (!self->memory) {
+        self->setWindowsErrorString("QSharedMemory::attach"_L1);
+        cleanHandle(self);
         return false;
     }
 
     // Grab the size of the memory we have been given (a multiple of 4K on windows)
     MEMORY_BASIC_INFORMATION info;
-    if (!VirtualQuery(memory, &info, sizeof(info))) {
+    if (!VirtualQuery(self->memory, &info, sizeof(info))) {
         // Windows doesn't set an error code on this one,
         // it should only be a kernel memory error.
-        error = QSharedMemory::UnknownError;
-        errorString = QSharedMemory::tr("%1: size query failed").arg("QSharedMemory::attach: "_L1);
+        self->setError(QSharedMemory::UnknownError,
+                       QSharedMemory::tr("%1: size query failed")
+                       .arg("QSharedMemory::attach: "_L1));
         return false;
     }
-    size = qsizetype(info.RegionSize);
+    self->size = qsizetype(info.RegionSize);
 
     return true;
 }
 
-bool QSharedMemoryPrivate::detach()
+bool QSharedMemoryWin32::detach(QSharedMemoryPrivate *self)
 {
     // umap memory
-    if (!UnmapViewOfFile(memory)) {
-        setErrorString("QSharedMemory::detach"_L1);
+    if (!UnmapViewOfFile(self->memory)) {
+        self->setWindowsErrorString("QSharedMemory::detach"_L1);
         return false;
     }
-    memory = 0;
-    size = 0;
+    self->memory = 0;
+    self->size = 0;
 
     // close handle
-    return cleanHandle();
+    return cleanHandle(self);
 }
 
 #endif // QT_CONFIG(sharedmemory)
diff --git a/src/corelib/kernel/qsystemsemaphore.cpp b/src/corelib/ipc/qsystemsemaphore.cpp
similarity index 60%
rename from src/corelib/kernel/qsystemsemaphore.cpp
rename to src/corelib/ipc/qsystemsemaphore.cpp
index c4505ea9..520b627c 100644
--- a/src/corelib/kernel/qsystemsemaphore.cpp
+++ b/src/corelib/ipc/qsystemsemaphore.cpp
@@ -3,11 +3,24 @@
 
 #include "qsystemsemaphore.h"
 #include "qsystemsemaphore_p.h"
-#include <qglobal.h>
+
+#if QT_CONFIG(systemsemaphore)
+#include <QtCore/q20memory.h>
 
 QT_BEGIN_NAMESPACE
 
-#if QT_CONFIG(systemsemaphore)
+using namespace QtIpcCommon;
+using namespace Qt::StringLiterals;
+
+inline void QSystemSemaphorePrivate::constructBackend()
+{
+    visit([](auto p) { q20::construct_at(p); });
+}
+
+inline void QSystemSemaphorePrivate::destructBackend()
+{
+    visit([](auto p) { std::destroy_at(p); });
+}
 
 /*!
   \class QSystemSemaphore
@@ -16,12 +29,10 @@ QT_BEGIN_NAMESPACE
 
   \brief The QSystemSemaphore class provides a general counting system semaphore.
 
-  A semaphore is a generalization of a mutex. While a mutex can be
-  locked only once, a semaphore can be acquired multiple times.
-  Typically, a semaphore is used to protect a certain number of
-  identical resources.
+  A system semaphore is a generalization of \l QSemaphore. Typically, a
+  semaphore is used to protect a certain number of identical resources.
 
-  Like its lighter counterpart QSemaphore, a QSystemSemaphore can be
+  Like its lighter counterpart, a QSystemSemaphore can be
   accessed from multiple \l {QThread} {threads}. Unlike QSemaphore, a
   QSystemSemaphore can also be accessed from multiple \l {QProcess}
   {processes}. This means QSystemSemaphore is a much heavier class, so
@@ -38,66 +49,44 @@ QT_BEGIN_NAMESPACE
   process. The function can also be called with a parameter n > 1,
   which releases n resources.
 
-  A system semaphore is created with a string key that other processes
-  can use to use the same semaphore.
+  System semaphores are identified by a key, represented by \l QNativeIpcKey. A
+  key can be created in a cross-platform manner by using platformSafeKey(). A
+  system semaphore is created by the QSystemSemaphore constructor when passed
+  an access mode parameter of AccessMode::Create. Once it is created, other
+  processes may attach to the same semaphore using the same key and an access
+  mode parameter of AccessMode::Open.
 
   Example: Create a system semaphore
   \snippet code/src_corelib_kernel_qsystemsemaphore.cpp 0
 
-  A typical application of system semaphores is for controlling access
-  to a circular buffer shared by a producer process and a consumer
-  processes.
+  For details on the key types, platform-specific limitations, and
+  interoperability with older or non-Qt applications, see the \l{Native IPC
+  Keys} documentation. That includes important information for sandboxed
+  applications on Apple platforms, including all apps obtained via the Apple
+  App Store.
 
-  \section1 Platform-Specific Behavior
-
-  When using this class, be aware of the following platform
-  differences:
-
-  \b{Windows:} QSystemSemaphore does not own its underlying system
-  semaphore. Windows owns it. This means that when all instances of
-  QSystemSemaphore for a particular key have been destroyed, either by
-  having their destructors called, or because one or more processes
-  crash, Windows removes the underlying system semaphore.
-
-  \b{Unix:}
-
-  \list
-  \li QSystemSemaphore owns the underlying system semaphore
-  in Unix systems. This means that the last process having an instance of
-  QSystemSemaphore for a particular key must remove the underlying
-  system semaphore in its destructor. If the last process crashes
-  without running the QSystemSemaphore destructor, Unix does not
-  automatically remove the underlying system semaphore, and the
-  semaphore survives the crash. A subsequent process that constructs a
-  QSystemSemaphore with the same key will then be given the existing
-  system semaphore. In that case, if the QSystemSemaphore constructor
-  has specified its \l {QSystemSemaphore::AccessMode} {access mode} as
-  \l {QSystemSemaphore::} {Open}, its initial resource count will not
-  be reset to the one provided but remain set to the value it received
-  in the crashed process. To protect against this, the first process
-  to create a semaphore for a particular key (usually a server), must
-  pass its \l {QSystemSemaphore::AccessMode} {access mode} as \l
-  {QSystemSemaphore::} {Create}, which will force Unix to reset the
-  resource count in the underlying system semaphore.
-
-  \li When a process using QSystemSemaphore terminates for
-  any reason, Unix automatically reverses the effect of all acquire
-  operations that were not released. Thus if the process acquires a
-  resource and then exits without releasing it, Unix will release that
-  resource.
-
-  \endlist
-
-  \b{Apple platforms:} Sandboxed applications (including apps
-  shipped through the Apple App Store) require the key to
-  be in the form \c {<application group identifier>/<custom identifier>},
-  as documented \l {https://developer.apple.com/library/archive/documentation/Security/Conceptual/AppSandboxDesignGuide/AppSandboxInDepth/AppSandboxInDepth.html#//apple_ref/doc/uid/TP40011183-CH3-SW24}
-  {here} and \l {https://developer.apple.com/documentation/bundleresources/entitlements/com_apple_security_application-groups}
-  {here}, and the key length is limited to 30 characters.
-
-  \sa QSharedMemory, QSemaphore
+  \sa {Inter-Process Communication}, QSharedMemory, QSemaphore
  */
 
+#if QT_DEPRECATED_SINCE(6, 10)
+/*!
+  \deprecated
+
+  Requests a system semaphore identified by the legacy key \a key. This
+  constructor does the same as:
+
+  \code
+    QSystemSemaphore(QSystemSemaphore::legacyNativeKey(key), initialValue, mode)
+  \endcode
+
+  except that it stores the legacy native key to retrieve using key().
+ */
+QSystemSemaphore::QSystemSemaphore(const QString &key, int initialValue, AccessMode mode)
+    : QSystemSemaphore(legacyNativeKey(key), initialValue, mode)
+{
+}
+#endif
+
 /*!
   Requests a system semaphore for the specified \a key. The parameters
   \a initialValue and \a mode are used according to the following
@@ -134,10 +123,10 @@ QT_BEGIN_NAMESPACE
 
   \sa acquire(), key()
  */
-QSystemSemaphore::QSystemSemaphore(const QString &key, int initialValue, AccessMode mode)
-    : d(new QSystemSemaphorePrivate)
+QSystemSemaphore::QSystemSemaphore(const QNativeIpcKey &key, int initialValue, AccessMode mode)
+    : d(new QSystemSemaphorePrivate(key.type()))
 {
-    setKey(key, initialValue, mode);
+    setNativeKey(key, initialValue, mode);
 }
 
 /*!
@@ -192,27 +181,33 @@ QSystemSemaphore::~QSystemSemaphore()
   create a new semaphore with the new \a key. The \a initialValue and
   \a mode parameters are as defined for the constructor.
 
-  \sa QSystemSemaphore(), key()
+  This function is useful if the native key was shared from another process.
+  See \l{Native IPC Keys} for more information.
+
+  \sa QSystemSemaphore(), nativeIpcKey()
  */
-void QSystemSemaphore::setKey(const QString &key, int initialValue, AccessMode mode)
+void QSystemSemaphore::setNativeKey(const QNativeIpcKey &key, int initialValue, AccessMode mode)
 {
-    if (key == d->key && mode == Open)
+    if (key == d->nativeKey && mode == Open)
         return;
-    d->clearError();
-#if !defined(Q_OS_WIN) && !defined(QT_POSIX_IPC)
-    // optimization to not destroy/create the file & semaphore
-    if (key == d->key && mode == Create && d->createdSemaphore && d->createdFile) {
-        d->initialValue = initialValue;
-        d->unix_key = -1;
-        d->handle(mode);
+    if (!isKeyTypeSupported(key.type())) {
+        d->setError(KeyError, tr("%1: unsupported key type")
+                    .arg("QSystemSemaphore::setNativeKey"_L1));
         return;
     }
-#endif
+
+    d->clearError();
     d->cleanHandle();
-    d->key = key;
+    if (key.type() == d->nativeKey.type()) {
+        // we can reuse the backend
+        d->nativeKey = key;
+    } else {
+        // we must recreate the backend
+        d->destructBackend();
+        d->nativeKey = key;
+        d->constructBackend();
+    }
     d->initialValue = initialValue;
-    // cache the file name so it doesn't have to be generated all the time.
-    d->fileName = d->makeKeyFileName();
     d->handle(mode);
 }
 
@@ -220,12 +215,46 @@ void QSystemSemaphore::setKey(const QString &key, int initialValue, AccessMode m
   Returns the key assigned to this system semaphore. The key is the
   name by which the semaphore can be accessed from other processes.
 
+  You can use the native key to access system semaphores that have not been
+  created by Qt, or to grant access to non-Qt applications. See \l{Native IPC
+  Keys} for more information.
+
+  \sa setNativeKey()
+ */
+QNativeIpcKey QSystemSemaphore::nativeIpcKey() const
+{
+    return d->nativeKey;
+}
+
+#if QT_DEPRECATED_SINCE(6, 10)
+/*!
+  \deprecated
+  This function works the same as the constructor. It reconstructs
+  this QSystemSemaphore object. If the new \a key is different from
+  the old key, calling this function is like calling the destructor of
+  the semaphore with the old key, then calling the constructor to
+  create a new semaphore with the new \a key. The \a initialValue and
+  \a mode parameters are as defined for the constructor.
+
+  \sa QSystemSemaphore(), key()
+ */
+void QSystemSemaphore::setKey(const QString &key, int initialValue, AccessMode mode)
+{
+    setNativeKey(legacyNativeKey(key), initialValue, mode);
+}
+
+/*!
+  \deprecated
+  Returns the legacy key assigned to this system semaphore. The key is the
+  name by which the semaphore can be accessed from other processes.
+
   \sa setKey()
  */
 QString QSystemSemaphore::key() const
 {
-    return d->key;
+    return QNativeIpcKeyPrivate::legacyKey(d->nativeKey);
 }
+#endif
 
 /*!
   Acquires one of the resources guarded by this semaphore, if there is
@@ -323,8 +352,66 @@ QString QSystemSemaphore::errorString() const
     return d->errorString;
 }
 
-#endif // QT_CONFIG(systemsemaphore)
+void QSystemSemaphorePrivate::setUnixErrorString(QLatin1StringView function)
+{
+    // EINVAL is handled in functions so they can give better error strings
+    switch (errno) {
+    case EPERM:
+    case EACCES:
+        errorString = QSystemSemaphore::tr("%1: permission denied").arg(function);
+        error = QSystemSemaphore::PermissionDenied;
+        break;
+    case EEXIST:
+        errorString = QSystemSemaphore::tr("%1: already exists").arg(function);
+        error = QSystemSemaphore::AlreadyExists;
+        break;
+    case ENOENT:
+        errorString = QSystemSemaphore::tr("%1: does not exist").arg(function);
+        error = QSystemSemaphore::NotFound;
+        break;
+    case ERANGE:
+    case ENOSPC:
+    case EMFILE:
+        errorString = QSystemSemaphore::tr("%1: out of resources").arg(function);
+        error = QSystemSemaphore::OutOfResources;
+        break;
+    case ENAMETOOLONG:
+        errorString = QSystemSemaphore::tr("%1: key too long").arg(function);
+        error = QSystemSemaphore::KeyError;
+        break;
+    default:
+        errorString = QSystemSemaphore::tr("%1: unknown error: %2")
+                .arg(function, qt_error_string(errno));
+        error = QSystemSemaphore::UnknownError;
+#if defined QSYSTEMSEMAPHORE_DEBUG
+        qDebug() << errorString << "key" << key << "errno" << errno << EINVAL;
+#endif
+    }
+}
+
+bool QSystemSemaphore::isKeyTypeSupported(QNativeIpcKey::Type type)
+{
+    if (!isIpcSupported(IpcType::SystemSemaphore, type))
+        return false;
+    using Variant = decltype(QSystemSemaphorePrivate::backend);
+    return Variant::staticVisit(type, [](auto ptr) {
+        using Impl = std::decay_t<decltype(*ptr)>;
+        return Impl::runtimeSupportCheck();
+    });
+}
+
+QNativeIpcKey QSystemSemaphore::platformSafeKey(const QString &key, QNativeIpcKey::Type type)
+{
+    return QtIpcCommon::platformSafeKey(key, IpcType::SystemSemaphore, type);
+}
+
+QNativeIpcKey QSystemSemaphore::legacyNativeKey(const QString &key, QNativeIpcKey::Type type)
+{
+    return QtIpcCommon::legacyPlatformSafeKey(key, IpcType::SystemSemaphore, type);
+}
 
 QT_END_NAMESPACE
 
 #include "moc_qsystemsemaphore.cpp"
+
+#endif // QT_CONFIG(systemsemaphore)
diff --git a/src/corelib/kernel/qsystemsemaphore.h b/src/corelib/ipc/qsystemsemaphore.h
similarity index 53%
rename from src/corelib/kernel/qsystemsemaphore.h
rename to src/corelib/ipc/qsystemsemaphore.h
index 7843ec8f..bd0057e6 100644
--- a/src/corelib/kernel/qsystemsemaphore.h
+++ b/src/corelib/ipc/qsystemsemaphore.h
@@ -5,12 +5,12 @@
 #define QSYSTEMSEMAPHORE_H
 
 #include <QtCore/qcoreapplication.h>
+#include <QtCore/qtipccommon.h>
 #include <QtCore/qstring.h>
 #include <QtCore/qscopedpointer.h>
 
 QT_BEGIN_NAMESPACE
 
-
 #if QT_CONFIG(systemsemaphore)
 
 class QSystemSemaphorePrivate;
@@ -38,11 +38,23 @@ public:
         UnknownError
     };
 
-    QSystemSemaphore(const QString &key, int initialValue = 0, AccessMode mode = Open);
+    QSystemSemaphore(const QNativeIpcKey &key, int initialValue = 0, AccessMode = Open);
     ~QSystemSemaphore();
 
+    void setNativeKey(const QNativeIpcKey &key, int initialValue = 0, AccessMode = Open);
+    void setNativeKey(const QString &key, int initialValue = 0, AccessMode mode = Open,
+                      QNativeIpcKey::Type type = QNativeIpcKey::legacyDefaultTypeForOs())
+    { setNativeKey({ key, type }, initialValue, mode); }
+    QNativeIpcKey nativeIpcKey() const;
+
+#if QT_DEPRECATED_SINCE(6, 10)
+    QT_DEPRECATED_VERSION_X_6_10("Please refer to 'Native IPC Key' documentation")
+    QSystemSemaphore(const QString &key, int initialValue = 0, AccessMode mode = Open);
+    QT_DEPRECATED_VERSION_X_6_10("Please refer to 'Native IPC Key' documentation")
     void setKey(const QString &key, int initialValue = 0, AccessMode mode = Open);
+    QT_DEPRECATED_VERSION_X_6_10("Please refer to 'Native IPC Key' documentation")
     QString key() const;
+#endif
 
     bool acquire();
     bool release(int n = 1);
@@ -50,6 +62,12 @@ public:
     SystemSemaphoreError error() const;
     QString errorString() const;
 
+    static bool isKeyTypeSupported(QNativeIpcKey::Type type) Q_DECL_CONST_FUNCTION;
+    static QNativeIpcKey platformSafeKey(const QString &key,
+            QNativeIpcKey::Type type = QNativeIpcKey::DefaultTypeForOs);
+    static QNativeIpcKey legacyNativeKey(const QString &key,
+            QNativeIpcKey::Type type = QNativeIpcKey::legacyDefaultTypeForOs());
+
 private:
     Q_DISABLE_COPY(QSystemSemaphore)
     QScopedPointer<QSystemSemaphorePrivate> d;
@@ -60,4 +78,3 @@ private:
 QT_END_NAMESPACE
 
 #endif // QSYSTEMSEMAPHORE_H
-
diff --git a/src/corelib/ipc/qsystemsemaphore_p.h b/src/corelib/ipc/qsystemsemaphore_p.h
new file mode 100644
index 00000000..788c4fb7
--- /dev/null
+++ b/src/corelib/ipc/qsystemsemaphore_p.h
@@ -0,0 +1,152 @@
+// Copyright (C) 2016 The Qt Company Ltd.
+// Copyright (C) 2022 Intel Corporation.
+// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
+
+#ifndef QSYSTEMSEMAPHORE_P_H
+#define QSYSTEMSEMAPHORE_P_H
+
+//
+//  W A R N I N G
+//  -------------
+//
+// This file is not part of the Qt API.  It exists purely as an
+// implementation detail.  This header file may change from version to
+// version without notice, or even be removed.
+//
+// We mean it.
+//
+
+#include "qsystemsemaphore.h"
+
+#if QT_CONFIG(systemsemaphore)
+
+#include "qcoreapplication.h"
+#include "qtipccommon_p.h"
+#include "private/qtcore-config_p.h"
+
+#include <sys/types.h>
+#if QT_CONFIG(posix_sem)
+#  include <semaphore.h>
+#endif
+#ifndef SEM_FAILED
+#  define SEM_FAILED     nullptr
+struct sem_t;
+#endif
+#if QT_CONFIG(sysv_sem)
+#  include <sys/sem.h>
+#endif
+
+QT_BEGIN_NAMESPACE
+
+class QSystemSemaphorePrivate;
+
+struct QSystemSemaphorePosix
+{
+    static constexpr bool Enabled = QT_CONFIG(posix_sem);
+    static bool supports(QNativeIpcKey::Type type)
+    { return type == QNativeIpcKey::Type::PosixRealtime; }
+    static bool runtimeSupportCheck();
+
+    bool handle(QSystemSemaphorePrivate *self, QSystemSemaphore::AccessMode mode);
+    void cleanHandle(QSystemSemaphorePrivate *self);
+    bool modifySemaphore(QSystemSemaphorePrivate *self, int count);
+
+    sem_t *semaphore = SEM_FAILED;
+    bool createdSemaphore = false;
+};
+
+struct QSystemSemaphoreSystemV
+{
+    static constexpr bool Enabled = QT_CONFIG(sysv_sem);
+    static bool supports(QNativeIpcKey::Type type)
+    { return quint16(type) <= 0xff; }
+    static bool runtimeSupportCheck();
+
+#if QT_CONFIG(sysv_sem)
+    key_t handle(QSystemSemaphorePrivate *self, QSystemSemaphore::AccessMode mode);
+    void cleanHandle(QSystemSemaphorePrivate *self);
+    bool modifySemaphore(QSystemSemaphorePrivate *self, int count);
+
+    QByteArray nativeKeyFile;
+    key_t unix_key = -1;
+    int semaphore = -1;
+    bool createdFile = false;
+    bool createdSemaphore = false;
+#endif
+};
+
+struct QSystemSemaphoreWin32
+{
+#ifdef Q_OS_WIN32
+    static constexpr bool Enabled = true;
+#else
+    static constexpr bool Enabled = false;
+#endif
+    static bool supports(QNativeIpcKey::Type type)
+    { return type == QNativeIpcKey::Type::Windows; }
+    static bool runtimeSupportCheck() { return Enabled; }
+
+    // we can declare the members without the #if
+    Qt::HANDLE handle(QSystemSemaphorePrivate *self, QSystemSemaphore::AccessMode mode);
+    void cleanHandle(QSystemSemaphorePrivate *self);
+    bool modifySemaphore(QSystemSemaphorePrivate *self, int count);
+
+    Qt::HANDLE semaphore = nullptr;
+};
+
+class QSystemSemaphorePrivate
+{
+public:
+    QSystemSemaphorePrivate(QNativeIpcKey::Type type) : nativeKey(type)
+    { constructBackend(); }
+    ~QSystemSemaphorePrivate() { destructBackend(); }
+
+    void setWindowsErrorString(QLatin1StringView function);    // Windows only
+    void setUnixErrorString(QLatin1StringView function);
+    inline void setError(QSystemSemaphore::SystemSemaphoreError e, const QString &message)
+    { error = e; errorString = message; }
+    inline void clearError()
+    { setError(QSystemSemaphore::NoError, QString()); }
+
+    QNativeIpcKey nativeKey;
+    QString errorString;
+    int initialValue;
+    QSystemSemaphore::SystemSemaphoreError error = QSystemSemaphore::NoError;
+
+    union Backend {
+        Backend() {}
+        ~Backend() {}
+        QSystemSemaphorePosix posix;
+        QSystemSemaphoreSystemV sysv;
+        QSystemSemaphoreWin32 win32;
+    };
+    QtIpcCommon::IpcStorageVariant<&Backend::posix, &Backend::sysv, &Backend::win32> backend;
+
+    void constructBackend();
+    void destructBackend();
+
+    template <typename Lambda> auto visit(const Lambda &lambda)
+    {
+        return backend.visit(nativeKey.type(), lambda);
+    }
+
+    void handle(QSystemSemaphore::AccessMode mode)
+    {
+        visit([&](auto p) { p->handle(this, mode); });
+    }
+    void cleanHandle()
+    {
+        visit([&](auto p) { p->cleanHandle(this); });
+    }
+    bool modifySemaphore(int count)
+    {
+        return visit([&](auto p) { return p->modifySemaphore(this, count); });
+    }
+};
+
+QT_END_NAMESPACE
+
+#endif // QT_CONFIG(systemsemaphore)
+
+#endif // QSYSTEMSEMAPHORE_P_H
+
diff --git a/src/corelib/kernel/qsystemsemaphore_posix.cpp b/src/corelib/ipc/qsystemsemaphore_posix.cpp
similarity index 61%
rename from src/corelib/kernel/qsystemsemaphore_posix.cpp
rename to src/corelib/ipc/qsystemsemaphore_posix.cpp
index 4f3ad192..b290e14d 100644
--- a/src/corelib/kernel/qsystemsemaphore_posix.cpp
+++ b/src/corelib/ipc/qsystemsemaphore_posix.cpp
@@ -1,6 +1,7 @@
 // Copyright (C) 2015 Konstantin Ritt <ritt.ks@gmail.com>
 // Copyright (C) 2016 The Qt Company Ltd.
 // Copyright (C) 2015 Klarälvdalens Datakonsult AB, a KDAB Group company, info@kdab.com, author Tobias Koenig <tobias.koenig@kdab.com>
+// Copyright (C) 2022 Intel Corporation.
 // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
 
 #include "qsystemsemaphore.h"
@@ -10,15 +11,19 @@
 #include <qfile.h>
 #include <qcoreapplication.h>
 
-#ifdef QT_POSIX_IPC
-
-#if QT_CONFIG(systemsemaphore)
+#if QT_CONFIG(posix_sem)
 
 #include <sys/types.h>
 #include <fcntl.h>
 #include <errno.h>
 
-#include "private/qcore_unix_p.h"
+#ifdef Q_OS_UNIX
+#  include "private/qcore_unix_p.h"
+#else
+#define EINTR_LOOP_VAL(var, val, cmd)       \
+    (void)var; var = cmd
+#define EINTR_LOOP(var, cmd)    EINTR_LOOP_VAL(var, -1, cmd)
+#endif
 
 // OpenBSD 4.2 doesn't define EIDRM, see BUGS section:
 // http://www.openbsd.org/cgi-bin/man.cgi?query=semop&manpath=OpenBSD+4.2
@@ -30,29 +35,38 @@ QT_BEGIN_NAMESPACE
 
 using namespace Qt::StringLiterals;
 
-bool QSystemSemaphorePrivate::handle(QSystemSemaphore::AccessMode mode)
+bool QSystemSemaphorePosix::runtimeSupportCheck()
+{
+    static const bool result = []() {
+        sem_open("/", 0, 0, 0);     // this WILL fail
+        return errno != ENOSYS;
+    }();
+    return result;
+}
+
+bool QSystemSemaphorePosix::handle(QSystemSemaphorePrivate *self, QSystemSemaphore::AccessMode mode)
 {
     if (semaphore != SEM_FAILED)
         return true;  // we already have a semaphore
 
-    if (fileName.isEmpty()) {
-        errorString = QSystemSemaphore::tr("%1: key is empty").arg("QSystemSemaphore::handle"_L1);
-        error = QSystemSemaphore::KeyError;
+    const QByteArray semName = QFile::encodeName(self->nativeKey.nativeKey());
+    if (semName.isEmpty()) {
+        self->setError(QSystemSemaphore::KeyError,
+                       QSystemSemaphore::tr("%1: key is empty")
+                       .arg("QSystemSemaphore::handle"_L1));
         return false;
     }
 
-    const QByteArray semName = QFile::encodeName(fileName);
-
     // Always try with O_EXCL so we know whether we created the semaphore.
     int oflag = O_CREAT | O_EXCL;
     for (int tryNum = 0, maxTries = 1; tryNum < maxTries; ++tryNum) {
         do {
-            semaphore = ::sem_open(semName.constData(), oflag, 0600, initialValue);
+            semaphore = ::sem_open(semName.constData(), oflag, 0600, self->initialValue);
         } while (semaphore == SEM_FAILED && errno == EINTR);
         if (semaphore == SEM_FAILED && errno == EEXIST) {
             if (mode == QSystemSemaphore::Create) {
                 if (::sem_unlink(semName.constData()) == -1 && errno != ENOENT) {
-                    setErrorString("QSystemSemaphore::handle (sem_unlink)"_L1);
+                    self->setUnixErrorString("QSystemSemaphore::handle (sem_unlink)"_L1);
                     return false;
                 }
                 // Race condition: the semaphore might be recreated before
@@ -70,7 +84,7 @@ bool QSystemSemaphorePrivate::handle(QSystemSemaphore::AccessMode mode)
     }
 
     if (semaphore == SEM_FAILED) {
-        setErrorString("QSystemSemaphore::handle"_L1);
+        self->setUnixErrorString("QSystemSemaphore::handle"_L1);
         return false;
     }
 
@@ -79,11 +93,11 @@ bool QSystemSemaphorePrivate::handle(QSystemSemaphore::AccessMode mode)
     return true;
 }
 
-void QSystemSemaphorePrivate::cleanHandle()
+void QSystemSemaphorePosix::cleanHandle(QSystemSemaphorePrivate *self)
 {
     if (semaphore != SEM_FAILED) {
         if (::sem_close(semaphore) == -1) {
-            setErrorString("QSystemSemaphore::cleanHandle (sem_close)"_L1);
+            self->setUnixErrorString("QSystemSemaphore::cleanHandle (sem_close)"_L1);
 #if defined QSYSTEMSEMAPHORE_DEBUG
             qDebug("QSystemSemaphore::cleanHandle sem_close failed.");
 #endif
@@ -92,28 +106,29 @@ void QSystemSemaphorePrivate::cleanHandle()
     }
 
     if (createdSemaphore) {
-        if (::sem_unlink(QFile::encodeName(fileName).constData()) == -1 && errno != ENOENT) {
-            setErrorString("QSystemSemaphore::cleanHandle (sem_unlink)"_L1);
+        const QByteArray semName = QFile::encodeName(self->nativeKey.nativeKey());
+        if (::sem_unlink(semName) == -1 && errno != ENOENT) {
+            self->setUnixErrorString("QSystemSemaphore::cleanHandle (sem_unlink)"_L1);
 #if defined QSYSTEMSEMAPHORE_DEBUG
-            qDebug("QSystemSemaphore::cleanHandle sem_unlink failed.");
+            qDebug("QSystemSemaphorePosix::cleanHandle sem_unlink failed.");
 #endif
         }
         createdSemaphore = false;
     }
 }
 
-bool QSystemSemaphorePrivate::modifySemaphore(int count)
+bool QSystemSemaphorePosix::modifySemaphore(QSystemSemaphorePrivate *self, int count)
 {
-    if (!handle())
+    if (!handle(self, QSystemSemaphore::Open))
         return false;
 
     if (count > 0) {
         int cnt = count;
         do {
             if (::sem_post(semaphore) == -1) {
-                setErrorString("QSystemSemaphore::modifySemaphore (sem_post)"_L1);
+                self->setUnixErrorString("QSystemSemaphore::modifySemaphore (sem_post)"_L1);
 #if defined QSYSTEMSEMAPHORE_DEBUG
-                qDebug("QSystemSemaphore::modify sem_post failed %d %d", count, errno);
+                qDebug("QSystemSemaphorePosix::modify sem_post failed %d %d", count, errno);
 #endif
                 // rollback changes to preserve the SysV semaphore behavior
                 for ( ; cnt < count; ++cnt) {
@@ -131,22 +146,20 @@ bool QSystemSemaphorePrivate::modifySemaphore(int count)
             // If the semaphore was removed be nice and create it and then modifySemaphore again
             if (errno == EINVAL || errno == EIDRM) {
                 semaphore = SEM_FAILED;
-                return modifySemaphore(count);
+                return modifySemaphore(self, count);
             }
-            setErrorString("QSystemSemaphore::modifySemaphore (sem_wait)"_L1);
+            self->setUnixErrorString("QSystemSemaphore::modifySemaphore (sem_wait)"_L1);
 #if defined QSYSTEMSEMAPHORE_DEBUG
-            qDebug("QSystemSemaphore::modify sem_wait failed %d %d", count, errno);
+            qDebug("QSystemSemaphorePosix::modify sem_wait failed %d %d", count, errno);
 #endif
             return false;
         }
     }
 
-    clearError();
+    self->clearError();
     return true;
 }
 
 QT_END_NAMESPACE
 
-#endif // QT_CONFIG(systemsemaphore)
-
-#endif // QT_POSIX_IPC
+#endif // QT_CONFIG(posix_sem)
diff --git a/src/corelib/kernel/qsystemsemaphore_systemv.cpp b/src/corelib/ipc/qsystemsemaphore_systemv.cpp
similarity index 50%
rename from src/corelib/kernel/qsystemsemaphore_systemv.cpp
rename to src/corelib/ipc/qsystemsemaphore_systemv.cpp
index 28992a0f..e976fa5e 100644
--- a/src/corelib/kernel/qsystemsemaphore_systemv.cpp
+++ b/src/corelib/ipc/qsystemsemaphore_systemv.cpp
@@ -1,4 +1,5 @@
 // Copyright (C) 2016 The Qt Company Ltd.
+// Copyright (C) 2022 Intel Corporation.
 // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
 
 #include "qsystemsemaphore.h"
@@ -8,9 +9,7 @@
 #include <qfile.h>
 #include <qcoreapplication.h>
 
-#ifndef QT_POSIX_IPC
-
-#if QT_CONFIG(systemsemaphore)
+#if QT_CONFIG(sysv_sem)
 
 #include <sys/types.h>
 #include <sys/ipc.h>
@@ -19,7 +18,7 @@
 #include <errno.h>
 
 #if defined(Q_OS_DARWIN)
-#include "qcore_mac_p.h"
+#include "private/qcore_mac_p.h"
 #endif
 
 #include "private/qcore_unix_p.h"
@@ -34,52 +33,66 @@ QT_BEGIN_NAMESPACE
 
 using namespace Qt::StringLiterals;
 
+bool QSystemSemaphoreSystemV::runtimeSupportCheck()
+{
+#if defined(Q_OS_DARWIN)
+    if (qt_apple_isSandboxed())
+        return false;
+#endif
+    static const bool result = []() {
+        (void)semget(IPC_PRIVATE, -1, 0);     // this will fail
+        return errno != ENOSYS;
+    }();
+    return result;
+}
+
 /*!
     \internal
 
     Setup unix_key
  */
-key_t QSystemSemaphorePrivate::handle(QSystemSemaphore::AccessMode mode)
+key_t QSystemSemaphoreSystemV::handle(QSystemSemaphorePrivate *self, QSystemSemaphore::AccessMode mode)
 {
+    if (unix_key != -1)
+        return unix_key;  // we already have a semaphore
+
 #if defined(Q_OS_DARWIN)
     if (qt_apple_isSandboxed()) {
-        errorString = QSystemSemaphore::tr("%1: System V semaphores are not available " \
-            "for sandboxed applications. Please build Qt with -feature-ipc_posix")
-                      .arg("QSystemSemaphore::handle:"_L1);
-        error = QSystemSemaphore::PermissionDenied;
+        // attempting to use System V semaphores will get us a SIGSYS
+        self->setError(QSystemSemaphore::PermissionDenied,
+                       QSystemSemaphore::tr("%1: System V semaphores are not available for "
+                                            "sandboxed applications. Please build Qt with "
+                                            "-feature-ipc_posix")
+                       .arg("QSystemSemaphore::handle:"_L1));
         return -1;
     }
 #endif
 
-    if (key.isEmpty()){
-        errorString = QSystemSemaphore::tr("%1: key is empty")
-                      .arg("QSystemSemaphore::handle:"_L1);
-        error = QSystemSemaphore::KeyError;
+    nativeKeyFile = QFile::encodeName(self->nativeKey.nativeKey());
+    if (nativeKeyFile.isEmpty()) {
+        self->setError(QSystemSemaphore::KeyError,
+                       QSystemSemaphore::tr("%1: key is empty")
+                       .arg("QSystemSemaphore::handle:"_L1));
         return -1;
     }
 
     // ftok requires that an actual file exists somewhere
-    if (-1 != unix_key)
-        return unix_key;
-
-    // Create the file needed for ftok
-    int built = QSharedMemoryPrivate::createUnixKeyFile(fileName);
+    int built = QtIpcCommon::createUnixKeyFile(nativeKeyFile);
     if (-1 == built) {
-        errorString = QSystemSemaphore::tr("%1: unable to make key")
-                      .arg("QSystemSemaphore::handle:"_L1);
-        error = QSystemSemaphore::KeyError;
+        self->setError(QSystemSemaphore::KeyError,
+                       QSystemSemaphore::tr("%1: unable to make key")
+                       .arg("QSystemSemaphore::handle:"_L1));
+
         return -1;
     }
     createdFile = (1 == built);
 
-#if QT_CONFIG(sharedmemory) && !defined(QT_POSIX_IPC) && !defined(Q_OS_ANDROID)
     // Get the unix key for the created file
-    unix_key = ftok(QFile::encodeName(fileName).constData(), 'Q');
-#endif
+    unix_key = ftok(nativeKeyFile, int(self->nativeKey.type()));
     if (-1 == unix_key) {
-        errorString = QSystemSemaphore::tr("%1: ftok failed")
-                      .arg("QSystemSemaphore::handle:"_L1);
-        error = QSystemSemaphore::KeyError;
+        self->setError(QSystemSemaphore::KeyError,
+                       QSystemSemaphore::tr("%1: ftok failed")
+                       .arg("QSystemSemaphore::handle:"_L1));
         return -1;
     }
 
@@ -89,8 +102,8 @@ key_t QSystemSemaphorePrivate::handle(QSystemSemaphore::AccessMode mode)
         if (errno == EEXIST)
             semaphore = semget(unix_key, 1, 0600 | IPC_CREAT);
         if (-1 == semaphore) {
-            setErrorString("QSystemSemaphore::handle"_L1);
-            cleanHandle();
+            self->setUnixErrorString("QSystemSemaphore::handle"_L1);
+            cleanHandle(self);
             return -1;
         }
     } else {
@@ -105,12 +118,12 @@ key_t QSystemSemaphorePrivate::handle(QSystemSemaphore::AccessMode mode)
     }
 
     // Created semaphore so initialize its value.
-    if (createdSemaphore && initialValue >= 0) {
+    if (createdSemaphore && self->initialValue >= 0) {
         qt_semun init_op;
-        init_op.val = initialValue;
+        init_op.val = self->initialValue;
         if (-1 == semctl(semaphore, 0, SETVAL, init_op)) {
-            setErrorString("QSystemSemaphore::handle"_L1);
-            cleanHandle();
+            self->setUnixErrorString("QSystemSemaphore::handle"_L1);
+            cleanHandle(self);
             return -1;
         }
     }
@@ -123,22 +136,22 @@ key_t QSystemSemaphorePrivate::handle(QSystemSemaphore::AccessMode mode)
 
     Cleanup the unix_key
  */
-void QSystemSemaphorePrivate::cleanHandle()
+void QSystemSemaphoreSystemV::cleanHandle(QSystemSemaphorePrivate *self)
 {
     unix_key = -1;
 
     // remove the file if we made it
     if (createdFile) {
-        QFile::remove(fileName);
+        unlink(nativeKeyFile.constData());
         createdFile = false;
     }
 
     if (createdSemaphore) {
         if (-1 != semaphore) {
             if (-1 == semctl(semaphore, 0, IPC_RMID, 0)) {
-                setErrorString("QSystemSemaphore::cleanHandle"_L1);
+                self->setUnixErrorString("QSystemSemaphore::cleanHandle"_L1);
 #if defined QSYSTEMSEMAPHORE_DEBUG
-                qDebug("QSystemSemaphore::cleanHandle semctl failed.");
+                qDebug("QSystemSemaphoreSystemV::cleanHandle semctl failed.");
 #endif
             }
             semaphore = -1;
@@ -150,9 +163,9 @@ void QSystemSemaphorePrivate::cleanHandle()
 /*!
     \internal
  */
-bool QSystemSemaphorePrivate::modifySemaphore(int count)
+bool QSystemSemaphoreSystemV::modifySemaphore(QSystemSemaphorePrivate *self, int count)
 {
-    if (-1 == handle())
+    if (handle(self, QSystemSemaphore::Open) == -1)
         return false;
 
     struct sembuf operation;
@@ -166,25 +179,23 @@ bool QSystemSemaphorePrivate::modifySemaphore(int count)
         // If the semaphore was removed be nice and create it and then modifySemaphore again
         if (errno == EINVAL || errno == EIDRM) {
             semaphore = -1;
-            cleanHandle();
-            handle();
-            return modifySemaphore(count);
+            cleanHandle(self);
+            handle(self, QSystemSemaphore::Open);
+            return modifySemaphore(self, count);
         }
-        setErrorString("QSystemSemaphore::modifySemaphore"_L1);
+        self->setUnixErrorString("QSystemSemaphore::modifySemaphore"_L1);
 #if defined QSYSTEMSEMAPHORE_DEBUG
-        qDebug("QSystemSemaphore::modify failed %d %d %d %d %d",
+        qDebug("QSystemSemaphoreSystemV::modify failed %d %d %d %d %d",
                count, int(semctl(semaphore, 0, GETVAL)), int(errno), int(EIDRM), int(EINVAL);
 #endif
         return false;
     }
 
-    clearError();
+    self->clearError();
     return true;
 }
 
 
 QT_END_NAMESPACE
 
-#endif // QT_CONFIG(systemsemaphore)
-
-#endif // QT_POSIX_IPC
+#endif // QT_CONFIG(sysv_sem)
diff --git a/src/corelib/kernel/qsystemsemaphore_win.cpp b/src/corelib/ipc/qsystemsemaphore_win.cpp
similarity index 69%
rename from src/corelib/kernel/qsystemsemaphore_win.cpp
rename to src/corelib/ipc/qsystemsemaphore_win.cpp
index f1b7e78f..f42fecf7 100644
--- a/src/corelib/kernel/qsystemsemaphore_win.cpp
+++ b/src/corelib/ipc/qsystemsemaphore_win.cpp
@@ -13,7 +13,7 @@ using namespace Qt::StringLiterals;
 
 #if QT_CONFIG(systemsemaphore)
 
-void QSystemSemaphorePrivate::setErrorString(const QString &function)
+void QSystemSemaphorePrivate::setWindowsErrorString(QLatin1StringView function)
 {
     BOOL windowsError = GetLastError();
     if (windowsError == 0)
@@ -30,7 +30,8 @@ void QSystemSemaphorePrivate::setErrorString(const QString &function)
         errorString = QCoreApplication::translate("QSystemSemaphore", "%1: permission denied").arg(function);
         break;
     default:
-        errorString = QCoreApplication::translate("QSystemSemaphore", "%1: unknown error %2").arg(function).arg(windowsError);
+        errorString = QCoreApplication::translate("QSystemSemaphore", "%1: unknown error: %2")
+                .arg(function, qt_error_string(windowsError));
         error = QSystemSemaphore::UnknownError;
 #if defined QSYSTEMSEMAPHORE_DEBUG
         qDebug() << errorString << "key" << key;
@@ -38,41 +39,41 @@ void QSystemSemaphorePrivate::setErrorString(const QString &function)
     }
 }
 
-HANDLE QSystemSemaphorePrivate::handle(QSystemSemaphore::AccessMode)
+HANDLE QSystemSemaphoreWin32::handle(QSystemSemaphorePrivate *self, QSystemSemaphore::AccessMode)
 {
     // don't allow making handles on empty keys
-    if (key.isEmpty())
+    if (self->nativeKey.isEmpty())
         return 0;
 
     // Create it if it doesn't already exists.
     if (semaphore == 0) {
-        semaphore = CreateSemaphore(0, initialValue, MAXLONG,
-                                    reinterpret_cast<const wchar_t*>(fileName.utf16()));
+        semaphore = CreateSemaphore(0, self->initialValue, MAXLONG,
+                                    reinterpret_cast<const wchar_t*>(self->nativeKey.nativeKey().utf16()));
         if (semaphore == NULL)
-            setErrorString("QSystemSemaphore::handle"_L1);
+            self->setWindowsErrorString("QSystemSemaphore::handle"_L1);
     }
 
     return semaphore;
 }
 
-void QSystemSemaphorePrivate::cleanHandle()
+void QSystemSemaphoreWin32::cleanHandle(QSystemSemaphorePrivate *)
 {
     if (semaphore && !CloseHandle(semaphore)) {
 #if defined QSYSTEMSEMAPHORE_DEBUG
-        qDebug("QSystemSemaphorePrivate::CloseHandle: sem failed");
+        qDebug("QSystemSemaphoreWin32::CloseHandle: sem failed");
 #endif
     }
     semaphore = 0;
 }
 
-bool QSystemSemaphorePrivate::modifySemaphore(int count)
+bool QSystemSemaphoreWin32::modifySemaphore(QSystemSemaphorePrivate *self, int count)
 {
-    if (0 == handle())
+    if (handle(self, QSystemSemaphore::Open) == nullptr)
         return false;
 
     if (count > 0) {
         if (0 == ReleaseSemaphore(semaphore, count, 0)) {
-            setErrorString("QSystemSemaphore::modifySemaphore"_L1);
+            self->setWindowsErrorString("QSystemSemaphore::modifySemaphore"_L1);
 #if defined QSYSTEMSEMAPHORE_DEBUG
             qDebug("QSystemSemaphore::modifySemaphore ReleaseSemaphore failed");
 #endif
@@ -80,7 +81,7 @@ bool QSystemSemaphorePrivate::modifySemaphore(int count)
         }
     } else {
         if (WAIT_OBJECT_0 != WaitForSingleObjectEx(semaphore, INFINITE, FALSE)) {
-            setErrorString("QSystemSemaphore::modifySemaphore"_L1);
+            self->setWindowsErrorString("QSystemSemaphore::modifySemaphore"_L1);
 #if defined QSYSTEMSEMAPHORE_DEBUG
             qDebug("QSystemSemaphore::modifySemaphore WaitForSingleObject failed");
 #endif
@@ -88,7 +89,7 @@ bool QSystemSemaphorePrivate::modifySemaphore(int count)
         }
     }
 
-    clearError();
+    self->clearError();
     return true;
 }
 
diff --git a/src/corelib/ipc/qtipccommon.cpp b/src/corelib/ipc/qtipccommon.cpp
new file mode 100644
index 00000000..68176274
--- /dev/null
+++ b/src/corelib/ipc/qtipccommon.cpp
@@ -0,0 +1,606 @@
+// Copyright (C) 2022 Intel Corporation.
+// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
+
+#include "qtipccommon.h"
+#include "qtipccommon_p.h"
+
+#include <qcryptographichash.h>
+#include <qstandardpaths.h>
+#include <qstringconverter.h>
+#include <qurl.h>
+#include <qurlquery.h>
+
+#if defined(Q_OS_DARWIN)
+#  include "private/qcore_mac_p.h"
+#  if !defined(SHM_NAME_MAX)
+     // Based on PSEMNAMLEN in XNU's posix_sem.c, which would
+     // indicate the max length is 31, _excluding_ the zero
+     // terminator. But in practice (possibly due to an off-
+     // by-one bug in the kernel) the usable bytes are only 30.
+#    define SHM_NAME_MAX 30
+#  endif
+#endif
+
+#if QT_CONFIG(sharedmemory) || QT_CONFIG(systemsemaphore)
+
+QT_BEGIN_NAMESPACE
+
+using namespace Qt::StringLiterals;
+
+static QStringView staticTypeToString(QNativeIpcKey::Type type)
+{
+    switch (type) {
+    case QNativeIpcKey::Type::SystemV:
+        return u"systemv";
+    case QNativeIpcKey::Type::PosixRealtime:
+        return u"posix";
+    case QNativeIpcKey::Type::Windows:
+        return u"windows";
+    }
+    return {};
+}
+
+static QString typeToString(QNativeIpcKey::Type type)
+{
+    QStringView typeString = staticTypeToString(type);
+    switch (type) {
+    case QNativeIpcKey::Type::SystemV:
+    case QNativeIpcKey::Type::PosixRealtime:
+    case QNativeIpcKey::Type::Windows:
+        return QString::fromRawData(typeString.constData(), typeString.size());
+    }
+
+    int value = int(type);
+    if (value >= 1 && value <= 0xff) {
+        // System V key with id different from 'Q'
+        typeString = staticTypeToString(QNativeIpcKey::Type::SystemV);
+        return typeString + QString::number(-value);   // negative so it prepends a dash
+    }
+
+    return QString();       // invalid!
+}
+
+static QNativeIpcKey::Type stringToType(QStringView typeString)
+{
+    if (typeString == staticTypeToString(QNativeIpcKey::Type::PosixRealtime))
+        return QNativeIpcKey::Type::PosixRealtime;
+    if (typeString == staticTypeToString(QNativeIpcKey::Type::Windows))
+        return QNativeIpcKey::Type::Windows;
+
+    auto fromNumber = [](QStringView number, int low, int high) {
+        bool ok;
+        int n = -number.toInt(&ok, 10);
+        if (!ok || n < low || n > high)
+            return QNativeIpcKey::Type{};
+        return QNativeIpcKey::Type(n);
+    };
+
+    QStringView sysv = staticTypeToString(QNativeIpcKey::Type::SystemV);
+    if (typeString.startsWith(sysv)) {
+        if (typeString.size() == sysv.size())
+            return QNativeIpcKey::Type::SystemV;
+        return fromNumber(typeString.sliced(sysv.size()), 1, 0xff);
+    }
+
+    // invalid!
+    return QNativeIpcKey::Type{};
+}
+
+/*!
+    \internal
+
+    Legacy: this exists for compatibility with QSharedMemory and
+    QSystemSemaphore between 4.4 and 6.6.
+
+    Returns a QNativeIpcKey that contains a platform-safe key using rules
+    similar to QtIpcCommon::platformSafeKey() below, but using an algorithm
+    that is compatible with Qt 4.4 to 6.6. Additionally, the returned
+    QNativeIpcKey will record the input \a key so it can be included in the
+    string form if necessary to pass to other processes.
+*/
+QNativeIpcKey QtIpcCommon::legacyPlatformSafeKey(const QString &key, QtIpcCommon::IpcType ipcType,
+                                                 QNativeIpcKey::Type type)
+{
+    QNativeIpcKey k(type);
+    if (key.isEmpty())
+        return k;
+
+    QByteArray hex = QCryptographicHash::hash(key.toUtf8(), QCryptographicHash::Sha1).toHex();
+
+    if (type == QNativeIpcKey::Type::PosixRealtime) {
+#if defined(Q_OS_DARWIN)
+        if (qt_apple_isSandboxed()) {
+            // Sandboxed applications on Apple platforms require the shared memory name
+            // to be in the form <application group identifier>/<custom identifier>.
+            // Since we don't know which application group identifier the user wants
+            // to apply, we instead document that requirement, and use the key directly.
+            QNativeIpcKeyPrivate::setNativeAndLegacyKeys(k, key, key);
+        } else {
+            // The shared memory name limit on Apple platforms is very low (30 characters),
+            // so we can't use the logic below of combining the prefix, key, and a hash,
+            // to ensure a unique and valid name. Instead we use the first part of the
+            // hash, which should still long enough to avoid collisions in practice.
+            QString native = u'/' + QLatin1StringView(hex).left(SHM_NAME_MAX - 1);
+            QNativeIpcKeyPrivate::setNativeAndLegacyKeys(k, native, key);
+        }
+        return k;
+#endif
+    }
+
+    QString result;
+    result.reserve(1 + 18 + key.size() + 40);
+    switch (ipcType) {
+    case IpcType::SharedMemory:
+        result += "qipc_sharedmemory_"_L1;
+        break;
+    case IpcType::SystemSemaphore:
+        result += "qipc_systemsem_"_L1;
+        break;
+    }
+
+    for (QChar ch : key) {
+        if ((ch >= u'a' && ch <= u'z') ||
+           (ch >= u'A' && ch <= u'Z'))
+           result += ch;
+    }
+    result.append(QLatin1StringView(hex));
+
+    switch (type) {
+    case QNativeIpcKey::Type::Windows:
+        if (isIpcSupported(ipcType, QNativeIpcKey::Type::Windows))
+            QNativeIpcKeyPrivate::setNativeAndLegacyKeys(k, result, key);
+        return k;
+    case QNativeIpcKey::Type::PosixRealtime:
+        result.prepend(u'/');
+        if (isIpcSupported(ipcType, QNativeIpcKey::Type::PosixRealtime))
+            QNativeIpcKeyPrivate::setNativeAndLegacyKeys(k, result, key);
+        return k;
+    case QNativeIpcKey::Type::SystemV:
+        break;
+    }
+    if (isIpcSupported(ipcType, QNativeIpcKey::Type::SystemV)) {
+        result = QStandardPaths::writableLocation(QStandardPaths::TempLocation) + u'/' + result;
+        QNativeIpcKeyPrivate::setNativeAndLegacyKeys(k, result, key);
+    }
+    return k;
+}
+
+/*!
+    \internal
+    Returns a QNativeIpcKey of type \a type, suitable for QSystemSemaphore or
+    QSharedMemory depending on \a ipcType. The returned native key is generated
+    from the Unicode input \a key and is safe for use on for the key type in
+    question in the current OS.
+*/
+QNativeIpcKey QtIpcCommon::platformSafeKey(const QString &key, QtIpcCommon::IpcType ipcType,
+                                           QNativeIpcKey::Type type)
+{
+    QNativeIpcKey k(type);
+    if (key.isEmpty())
+        return k;
+
+    switch (type) {
+    case QNativeIpcKey::Type::PosixRealtime:
+        if (isIpcSupported(ipcType, QNativeIpcKey::Type::PosixRealtime)) {
+#ifdef SHM_NAME_MAX
+            // The shared memory name limit on Apple platforms is very low (30
+            // characters), so we have to cut it down to avoid ENAMETOOLONG. We
+            // hope that there won't be too many collisions...
+            k.setNativeKey(u'/' + QStringView(key).left(SHM_NAME_MAX - 1));
+#else
+            k.setNativeKey(u'/' + key);
+#endif
+        }
+        return k;
+
+    case QNativeIpcKey::Type::Windows:
+        if (isIpcSupported(ipcType, QNativeIpcKey::Type::Windows)) {
+            QStringView prefix;
+            QStringView payload = key;
+            // see https://learn.microsoft.com/en-us/windows/win32/termserv/kernel-object-namespaces
+            for (QStringView candidate : { u"Local\\", u"Global\\" }) {
+                if (!key.startsWith(candidate))
+                    continue;
+                prefix = candidate;
+                payload = payload.sliced(prefix.size());
+                break;
+            }
+
+            QStringView mid;
+            switch (ipcType) {
+            case IpcType::SharedMemory:     mid = u"shm_"; break;
+            case IpcType::SystemSemaphore:  mid = u"sem_"; break;
+            }
+
+            QString result = prefix + mid + payload;
+#ifdef MAX_PATH
+            result.truncate(MAX_PATH);
+#endif
+            k.setNativeKey(result);
+        }
+        return k;
+
+    case QNativeIpcKey::Type::SystemV:
+        break;
+    }
+
+    // System V
+    if (isIpcSupported(ipcType, QNativeIpcKey::Type::SystemV)) {
+        if (key.startsWith(u'/')) {
+            k.setNativeKey(key);
+        } else {
+            QString baseDir = QStandardPaths::writableLocation(QStandardPaths::RuntimeLocation);
+            k.setNativeKey(baseDir + u'/' + key);
+        }
+    }
+    return k;
+}
+
+/*!
+    \class QNativeIpcKey
+    \inmodule QtCore
+    \since 6.6
+    \brief The QNativeIpcKey class holds a native key used by QSystemSemaphore and QSharedMemory.
+
+    The \l QSharedMemory and \l QSystemSemaphore classes identify their
+    resource using a system-wide identifier known as a "key". The low-level key
+    value as well as the key type are encapsulated in Qt using the \l
+    QNativeIpcKey class.
+
+    Those two classes also provide the means to create native keys from a
+    cross-platform identifier, using QSharedMemory::platformSafeKey() and
+    QSystemSemaphore::platformSafeKey(). Applications should never share the
+    input to those functions, as different versions of Qt may perform different
+    transformations, resulting in different native keys. Instead, the
+    application that created the IPC object should communicate the resulting
+    native key using the methods described below.
+
+    For details on the key types, platform-specific limitations, and
+    interoperability with older or non-Qt applications, see the \l{Native IPC
+    Keys} documentation. That includes important information for sandboxed
+    applications on Apple platforms, including all apps obtained via the Apple
+    App Store.
+
+    \section1 Communicating keys to other processes
+    \section2 Communicating keys to other Qt processes
+
+    If the other process supports QNativeIpcKey, the best way of communicating
+    is via the string representation obtained from toString() and parsing it
+    using fromString(). This representation can be stored on a file whose name
+    is well-known or passed on the command-line to a child process using
+    QProcess::setArguments().
+
+    If the other process does not support QNativeIpcKey, then the two processes
+    can exchange the nativeKey() but the older code is likely unable to adjust
+    its key type. The legacyDefaultTypeForOs() function returns the type that
+    legacy code used, which may not match the \l{DefaultTypeForOs} constant.
+    This is still true even if the old application is not using the same build
+    as the new one (for example, it is a Qt 5 application), provided the
+    options passed to the Qt configure script are the same.
+
+    \section2 Communicating keys to non-Qt processes
+
+    When communicating with non-Qt processes, the application must arrange to
+    obtain the key type the other process is using. This is important
+    particularly on Unix systems, where both \l PosixRealtime and \l SystemV
+    are common.
+
+    \section1 String representation of native keys
+
+    The format of the string representation of a QNativeIpcKey is meant to be
+    stable and therefore backwards and forwards compatible, provided the key
+    type is supported by the Qt version in question. That is to say, an older
+    Qt will fail to parse the string representation of a key type introduced
+    after it was released. However, successfully parsing a string
+    representation does not imply the Qt classes can successfully create an
+    object of that type; applications should verify support using
+    QSharedMemory::isKeyTypeSupported() and QSystemSemaphore::isKeyTypeSupported().
+
+    The format of the string representation is formed by two components,
+    separated by a colon (':'). The first component is the key type, described
+    in the table below. The second component is a type-specific payload, using
+    \l{QByteArray::fromPercentEncoding}{percent-encoding}. For all currently
+    supported key types, the decoded form is identical to the contents of the
+    nativeKey() field.
+
+    \table
+        \row    \li Key type            \li String representation
+        \row    \li \l PosixRealtime    \li \c "posix"
+        \row    \li \l SystemV          \li \c "systemv"
+        \row    \li \l Windows          \li \c "windows"
+        \row    \li Non-standard SystemV \li \c "systemv-" followed by a decimal number
+    \endtable
+
+    This format resembles a URI and allows parsing using URI/URL-parsing
+    functions, such as \l QUrl. When parsed by such API, the key type will show
+    up as the \l{QUrl::scheme()}{scheme}, and the payload will be the
+    \l{QUrl::path()}{path}. Use of query or fragments is reserved.
+
+    \sa QSharedMemory, QSystemSemaphore
+*/
+
+/*!
+    \enum QNativeIpcKey::Type
+
+    This enum describes the backend type for the IPC object. For details on the
+    key types, see the \l{Native IPC Keys} documentation.
+
+    \value SystemV          X/Open System Initiative (XSI) or System V (SVr4) API
+    \value PosixRealtime    IEEE 1003.1b (POSIX.1b) API
+    \value Windows          Win32 API
+
+    \sa setType(), type()
+*/
+
+/*!
+    \variable QNativeIpcKey::DefaultTypeForOs
+
+    This constant expression variable holds the default native IPC type for the
+    current OS. It will be Type::Windows for Windows systems and
+    Type::PosixRealtime elsewhere. Note that this constant is different from
+    what \l QSharedMemory and \l QSystemSemaphore defaulted to on the majority
+    of Unix systems prior to Qt 6.6; see legacyDefaultTypeForOs() for more
+    information.
+*/
+
+/*!
+    \fn QNativeIpcKey::legacyDefaultTypeForOs() noexcept
+
+    Returns the \l{Type} that corresponds to the native IPC key that
+    \l{QSharedMemory} and \l{QSystemSemaphore} used to use prior to Qt 6.6.
+    Applications and libraries that must retain compatibility with code using
+    either class that was compiled with Qt prior to version 6.6 can use this
+    function to determine what IPC type the other applications may be using.
+
+    Note that this function relies on Qt having been built with identical
+    configure-time options.
+*/
+#if defined(Q_OS_DARWIN)
+QNativeIpcKey::Type QNativeIpcKey::defaultTypeForOs_internal() noexcept
+{
+    if (qt_apple_isSandboxed())
+        return Type::PosixRealtime;
+    return Type::SystemV;
+}
+#endif
+
+/*!
+    \fn QNativeIpcKey::QNativeIpcKey() noexcept
+
+    Constructs a QNativeIpcKey object of type \l DefaultTypeForOs with an empty key.
+*/
+
+/*!
+    \fn QNativeIpcKey::QNativeIpcKey(Type type) noexcept
+    \fn QNativeIpcKey::QNativeIpcKey(const QString &key, Type type)
+
+    Constructs a QNativeIpcKey object holding native key \a key (or empty on
+    the overload without the parameter) for type \a type.
+*/
+
+/*!
+    \fn QNativeIpcKey::QNativeIpcKey(const QNativeIpcKey &other)
+    \fn QNativeIpcKey::QNativeIpcKey(QNativeIpcKey &&other) noexcept
+    \fn QNativeIpcKey &QNativeIpcKey::operator=(const QNativeIpcKey &other)
+    \fn QNativeIpcKey &QNativeIpcKey::operator=(QNativeIpcKey &&other) noexcept
+
+    Copies or moves the content of \a other.
+*/
+void QNativeIpcKey::copy_internal(const QNativeIpcKey &other)
+{
+    d = new QNativeIpcKeyPrivate(*other.d);
+}
+
+void QNativeIpcKey::move_internal(QNativeIpcKey &&) noexcept
+{
+    // inline code already moved properly, nothing for us to do here
+}
+
+QNativeIpcKey &QNativeIpcKey::assign_internal(const QNativeIpcKey &other)
+{
+    Q_ASSERT(d || other.d);     // only 3 cases to handle
+    if (d && !other.d)
+        *d = {};
+    else if (d)
+        *d = *other.d;
+    else
+        d = new QNativeIpcKeyPrivate(*other.d);
+    return *this;
+}
+
+/*!
+    \fn QNativeIpcKey::~QNativeIpcKey()
+
+    Disposes of this QNativeIpcKey object.
+*/
+void QNativeIpcKey::destroy_internal() noexcept
+{
+    delete d;
+}
+
+/*!
+    \fn QNativeIpcKey::swap(QNativeIpcKey &other) noexcept
+
+    Swaps the native IPC key and type \a other with this object.
+    This operation is very fast and never fails.
+*/
+
+/*!
+    \fn swap(QNativeIpcKey &value1, QNativeIpcKey &value2) noexcept
+    \relates QNativeIpcKey
+
+    Swaps the native IPC key and type \a value1 with \a value2.
+    This operation is very fast and never fails.
+*/
+
+/*!
+    \fn QNativeIpcKey::isEmpty() const
+
+    Returns true if the nativeKey() is empty.
+
+    \sa nativeKey()
+*/
+
+/*!
+    \fn QNativeIpcKey::isValid() const
+
+    Returns true if this object contains a valid native IPC key type. Invalid
+    types are usually the result of a failure to parse a string representation
+    using fromString().
+
+    This function performs no check on the whether the key string is actually
+    supported or valid for the current operating system.
+
+    \sa type(), fromString()
+*/
+
+/*!
+    \fn QNativeIpcKey::type() const noexcept
+
+    Returns the key type associated with this object.
+
+    \sa nativeKey(), setType()
+*/
+
+/*!
+    \fn QNativeIpcKey::setType(Type type)
+
+    Sets the IPC type of this object to \a type.
+
+    \sa type(), setNativeKey()
+*/
+void QNativeIpcKey::setType_internal(Type type)
+{
+    Q_UNUSED(type);
+}
+
+/*!
+    \fn QNativeIpcKey::nativeKey() const noexcept
+
+    Returns the native key string associated with this object.
+
+    \sa setNativeKey(), type()
+*/
+
+/*!
+    \fn QNativeIpcKey::setNativeKey(const QString &newKey)
+
+    Sets the native key for this object to \a newKey.
+
+    \sa nativeKey(), setType()
+*/
+void QNativeIpcKey::setNativeKey_internal(const QString &)
+{
+    d->legacyKey_.clear();
+}
+
+/*!
+    \fn size_t QNativeIpcKey::qHash(const QNativeIpcKey &ipcKey) noexcept
+
+    Returns the hash value for \a ipcKey, using a default seed of \c 0.
+*/
+
+/*!
+    \fn size_t QNativeIpcKey::qHash(const QNativeIpcKey &ipcKey, size_t seed) noexcept
+
+    Returns the hash value for \a ipcKey, using \a seed to seed the calculation.
+*/
+size_t qHash(const QNativeIpcKey &ipcKey, size_t seed) noexcept
+{
+    // by *choice*, we're not including d->legacyKey_ in the hash -- it's
+    // already partially encoded in the key
+    return qHashMulti(seed, ipcKey.key, ipcKey.type());
+}
+
+/*!
+    \fn bool QNativeIpcKey::operator==(const QNativeIpcKey &lhs, const QNativeIpcKey &rhs) noexcept
+    \fn bool QNativeIpcKey::operator!=(const QNativeIpcKey &lhs, const QNativeIpcKey &rhs) noexcept
+
+    Returns true if the \a lhs and \a rhs objects hold the same (or different) contents.
+*/
+int QNativeIpcKey::compare_internal(const QNativeIpcKey &lhs, const QNativeIpcKey &rhs) noexcept
+{
+    return (QNativeIpcKeyPrivate::legacyKey(lhs) == QNativeIpcKeyPrivate::legacyKey(rhs)) ? 0 : 1;
+}
+
+/*!
+    Returns the string representation of this object. String representations
+    are useful to inform other processes of the key this process created and
+    that they should attach to.
+
+    This function returns a null string if the current object is
+    \l{isValid()}{invalid}.
+
+    \sa fromString()
+*/
+QString QNativeIpcKey::toString() const
+{
+    QString prefix = typeToString(type());
+    if (prefix.isEmpty()) {
+        Q_ASSERT(prefix.isNull());
+        return prefix;
+    }
+
+    QString copy = nativeKey();
+    copy.replace(u'%', "%25"_L1);
+    if (copy.startsWith("//"_L1))
+        copy.replace(0, 2, u"/%2F"_s);  // ensure it's parsed as a URL path
+
+    QUrl u;
+    u.setScheme(prefix);
+    u.setPath(copy, QUrl::TolerantMode);
+    if (isSlowPath()) {
+        QUrlQuery q;
+        if (!d->legacyKey_.isEmpty())
+            q.addQueryItem(u"legacyKey"_s, QString(d->legacyKey_).replace(u'%', "%25"_L1));
+        u.setQuery(q);
+    }
+    return u.toString(QUrl::DecodeReserved);
+}
+
+/*!
+    Parses the string form \a text and returns the corresponding QNativeIpcKey.
+    String representations are useful to inform other processes of the key this
+    process created and they should attach to.
+
+    If the string could not be parsed, this function returns an
+    \l{isValid()}{invalid} object.
+
+    \sa toString(), isValid()
+*/
+QNativeIpcKey QNativeIpcKey::fromString(const QString &text)
+{
+    QUrl u(text, QUrl::TolerantMode);
+    Type invalidType = {};
+    Type type = stringToType(u.scheme());
+    if (type == invalidType || !u.isValid() || !u.userInfo().isEmpty() || !u.host().isEmpty()
+            || u.port() != -1)
+        return QNativeIpcKey(invalidType);
+
+    QNativeIpcKey result(QString(), type);
+    if (result.type() != type)      // range check, just in case
+        return QNativeIpcKey(invalidType);
+
+    // decode the payload
+    result.setNativeKey(u.path());
+
+    if (u.hasQuery()) {
+        const QList items = QUrlQuery(u).queryItems();
+        for (const auto &item : items) {
+            if (item.first == u"legacyKey"_s) {
+                QString legacyKey = QUrl::fromPercentEncoding(item.second.toUtf8());
+                QNativeIpcKeyPrivate::setLegacyKey(result, std::move(legacyKey));
+            } else {
+                // unknown query item
+                return QNativeIpcKey(invalidType);
+            }
+        }
+    }
+    return result;
+}
+
+QT_END_NAMESPACE
+
+#include "moc_qtipccommon.cpp"
+
+#endif // QT_CONFIG(sharedmemory) || QT_CONFIG(systemsemaphore)
diff --git a/src/corelib/ipc/qtipccommon.h b/src/corelib/ipc/qtipccommon.h
new file mode 100644
index 00000000..bf0936cb
--- /dev/null
+++ b/src/corelib/ipc/qtipccommon.h
@@ -0,0 +1,210 @@
+// Copyright (C) 2022 Intel Corporation.
+// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
+
+#ifndef QNATIVEIPCKEY_H
+#define QNATIVEIPCKEY_H
+
+#include <QtCore/qglobal.h>
+#include <QtCore/qtcore-config.h>
+
+#if QT_CONFIG(sharedmemory) || QT_CONFIG(systemsemaphore)
+#  include <QtCore/qstring.h>
+#  include <QtCore/qobjectdefs.h>
+
+QT_BEGIN_NAMESPACE
+
+class QNativeIpcKeyPrivate;
+class QNativeIpcKey
+{
+    Q_GADGET_EXPORT(Q_CORE_EXPORT)
+public:
+    enum class Type : quint16 {
+        // 0 is reserved for the invalid type
+        // keep 1 through 0xff free, except for SystemV
+        SystemV = 0x51,         // 'Q'
+
+        PosixRealtime = 0x100,
+        Windows,
+    };
+    Q_ENUM(Type)
+
+    static constexpr Type DefaultTypeForOs =
+#ifdef Q_OS_WIN
+            Type::Windows
+#else
+            Type::PosixRealtime
+#endif
+            ;
+    static Type legacyDefaultTypeForOs() noexcept;
+
+    constexpr QNativeIpcKey() noexcept = default;
+
+    explicit constexpr QNativeIpcKey(Type type) noexcept
+        : typeAndFlags{type}
+    {
+    }
+
+    Q_IMPLICIT QNativeIpcKey(const QString &k, Type type = DefaultTypeForOs)
+        : key(k), typeAndFlags{type}
+    {
+    }
+
+    QNativeIpcKey(const QNativeIpcKey &other)
+        : d(other.d), key(other.key), typeAndFlags(other.typeAndFlags)
+    {
+        if (isSlowPath())
+            copy_internal(other);
+    }
+
+    QNativeIpcKey(QNativeIpcKey &&other) noexcept
+        : d(std::exchange(other.d, nullptr)), key(std::move(other.key)),
+          typeAndFlags(std::move(other.typeAndFlags))
+    {
+        if (isSlowPath())
+            move_internal(std::move(other));
+    }
+
+    ~QNativeIpcKey()
+    {
+        if (isSlowPath())
+            destroy_internal();
+    }
+
+    QNativeIpcKey &operator=(const QNativeIpcKey &other)
+    {
+        typeAndFlags = other.typeAndFlags;
+        key = other.key;
+        if (isSlowPath() || other.isSlowPath())
+            return assign_internal(other);
+        Q_ASSERT(!d);
+        return *this;
+    }
+
+    QT_MOVE_ASSIGNMENT_OPERATOR_IMPL_VIA_PURE_SWAP(QNativeIpcKey)
+    void swap(QNativeIpcKey &other) noexcept
+    {
+        std::swap(d, other.d);
+        key.swap(other.key);
+        typeAndFlags.swap(other.typeAndFlags);
+    }
+
+    bool isEmpty() const noexcept
+    {
+        return key.isEmpty();
+    }
+
+    bool isValid() const noexcept
+    {
+        return type() != Type{};
+    }
+
+    constexpr Type type() const noexcept
+    {
+        return typeAndFlags.type;
+    }
+
+    constexpr void setType(Type type)
+    {
+        if (isSlowPath())
+            return setType_internal(type);
+        typeAndFlags.type = type;
+    }
+
+    QString nativeKey() const noexcept
+    {
+        return key;
+    }
+    void setNativeKey(const QString &newKey)
+    {
+        key = newKey;
+        if (isSlowPath())
+            setNativeKey_internal(newKey);
+    }
+
+    Q_CORE_EXPORT QString toString() const;
+    Q_CORE_EXPORT static QNativeIpcKey fromString(const QString &string);
+
+private:
+    struct TypeAndFlags {
+        Type type = DefaultTypeForOs;
+        quint16 reserved1 = {};
+        quint32 reserved2 = {};
+
+        void swap(TypeAndFlags &other) noexcept
+        {
+            std::swap(type, other.type);
+            std::swap(reserved1, other.reserved1);
+            std::swap(reserved2, other.reserved2);
+        }
+
+        friend constexpr bool operator==(const TypeAndFlags &lhs, const TypeAndFlags &rhs) noexcept
+        {
+            return lhs.type == rhs.type &&
+                    lhs.reserved1 == rhs.reserved1 &&
+                    lhs.reserved2 == rhs.reserved2;
+        }
+    };
+
+    QNativeIpcKeyPrivate *d = nullptr;
+    QString key;
+    TypeAndFlags typeAndFlags;
+
+    friend class QNativeIpcKeyPrivate;
+    constexpr bool isSlowPath() const noexcept
+    { return Q_UNLIKELY(d); }
+
+    friend Q_CORE_EXPORT size_t qHash(const QNativeIpcKey &ipcKey, size_t seed) noexcept;
+    friend size_t qHash(const QNativeIpcKey &ipcKey) noexcept
+    { return qHash(ipcKey, 0); }
+
+    friend bool operator==(const QNativeIpcKey &lhs, const QNativeIpcKey &rhs) noexcept
+    {
+        if (!(lhs.typeAndFlags == rhs.typeAndFlags))
+            return false;
+        if (lhs.key != rhs.key)
+            return false;
+        if (lhs.d == rhs.d)
+            return true;
+        return compare_internal(lhs, rhs) == 0;
+    }
+    friend bool operator!=(const QNativeIpcKey &lhs, const QNativeIpcKey &rhs) noexcept
+    {
+        return !(lhs == rhs);
+    }
+
+    Q_CORE_EXPORT void copy_internal(const QNativeIpcKey &other);
+    Q_CORE_EXPORT void move_internal(QNativeIpcKey &&other) noexcept;
+    Q_CORE_EXPORT QNativeIpcKey &assign_internal(const QNativeIpcKey &other);
+    Q_CORE_EXPORT void destroy_internal() noexcept;
+    Q_CORE_EXPORT void setType_internal(Type);
+    Q_CORE_EXPORT void setNativeKey_internal(const QString &);
+    Q_DECL_PURE_FUNCTION Q_CORE_EXPORT static int
+    compare_internal(const QNativeIpcKey &lhs, const QNativeIpcKey &rhs) noexcept;
+
+#ifdef Q_OS_DARWIN
+    Q_DECL_CONST_FUNCTION Q_CORE_EXPORT static Type defaultTypeForOs_internal() noexcept;
+#endif
+};
+
+// not a shared type, exactly, but this works too
+Q_DECLARE_SHARED(QNativeIpcKey)
+
+inline auto QNativeIpcKey::legacyDefaultTypeForOs() noexcept -> Type
+{
+#if defined(Q_OS_WIN)
+    return Type::Windows;
+#elif defined(QT_POSIX_IPC)
+    return Type::PosixRealtime;
+#elif defined(Q_OS_DARWIN)
+    return defaultTypeForOs_internal();
+#else
+    return Type::SystemV;
+#endif
+}
+
+QT_END_NAMESPACE
+
+#endif // QT_CONFIG(sharedmemory) || QT_CONFIG(systemsemaphore)
+
+
+#endif // QNATIVEIPCKEY_H
diff --git a/src/corelib/ipc/qtipccommon_p.h b/src/corelib/ipc/qtipccommon_p.h
new file mode 100644
index 00000000..72762c5b
--- /dev/null
+++ b/src/corelib/ipc/qtipccommon_p.h
@@ -0,0 +1,173 @@
+// Copyright (C) 2022 Intel Corporation.
+// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
+
+#ifndef QTIPCCOMMON_P_H
+#define QTIPCCOMMON_P_H
+
+//
+//  W A R N I N G
+//  -------------
+//
+// This file is not part of the Qt API.  It exists purely as an
+// implementation detail.  This header file may change from version to
+// version without notice, or even be removed.
+//
+// We mean it.
+//
+
+#include "qtipccommon.h"
+#include <private/qglobal_p.h>
+#include <private/qtcore-config_p.h>
+
+#if QT_CONFIG(sharedmemory) || QT_CONFIG(systemsemaphore)
+
+#if defined(Q_OS_UNIX)
+#  include <qfile.h>
+#  include <private/qcore_unix_p.h>
+#endif
+
+QT_BEGIN_NAMESPACE
+
+class QNativeIpcKeyPrivate
+{
+public:
+    QString legacyKey_;
+
+    static QString legacyKey(const QNativeIpcKey &key)
+    {
+        if (key.isSlowPath())
+            return key.d->legacyKey_;
+        return QString();
+    }
+    static void setLegacyKey(QNativeIpcKey &key, const QString &legacyKey)
+    {
+        QNativeIpcKeyPrivate::makeExtended(key)->legacyKey_ = legacyKey;
+    }
+    static void setNativeAndLegacyKeys(QNativeIpcKey &key, const QString &nativeKey,
+                                       const QString &legacyKey)
+    {
+        key.setNativeKey(nativeKey);
+        setLegacyKey(key, legacyKey);
+    }
+
+private:
+    static QNativeIpcKeyPrivate *makeExtended(QNativeIpcKey &key)
+    {
+        if (!key.isSlowPath())
+            key.d = new QNativeIpcKeyPrivate;
+        return key.d;
+    }
+};
+
+namespace QtIpcCommon {
+enum class IpcType {
+    SharedMemory,
+    SystemSemaphore
+};
+
+static constexpr bool isIpcSupported(IpcType ipcType, QNativeIpcKey::Type type)
+{
+    switch (type) {
+    case QNativeIpcKey::Type::SystemV:
+        break;
+
+    case QNativeIpcKey::Type::PosixRealtime:
+        if (ipcType == IpcType::SharedMemory)
+            return QT_CONFIG(posix_shm);
+        return QT_CONFIG(posix_sem);
+
+    case QNativeIpcKey::Type::Windows:
+#ifdef Q_OS_WIN
+        return true;
+#else
+        return false;
+#endif
+    }
+
+    if (ipcType == IpcType::SharedMemory)
+        return QT_CONFIG(sysv_shm);
+    return QT_CONFIG(sysv_sem);
+}
+
+template <auto Member1, auto... Members> class IpcStorageVariant
+{
+    template <typename T, typename C> static C extractClass(T C::*);
+    template <typename T, typename C> static T extractObject(T C::*);
+
+    template <auto M>
+    static constexpr bool IsEnabled = decltype(extractObject(M))::Enabled;
+
+    static_assert(std::is_member_object_pointer_v<decltype(Member1)>);
+    using StorageType = decltype(extractClass(Member1));
+    StorageType d;
+
+public:
+    template <typename Lambda> static auto
+    visit_internal(StorageType &storage, QNativeIpcKey::Type keyType, const Lambda &lambda)
+    {
+        if constexpr ((IsEnabled<Member1> || ... || IsEnabled<Members>)) {
+            if constexpr (IsEnabled<Member1>) {
+                using MemberType1 = decltype(extractObject(Member1));
+                if (MemberType1::supports(keyType))
+                    return lambda(&(storage.*Member1));
+            }
+            if constexpr ((... || IsEnabled<Members>))
+                return IpcStorageVariant<Members...>::visit_internal(storage, keyType, lambda);
+            Q_UNREACHABLE();
+        } else {
+            // no backends enabled, but we can't return void
+            return false;
+        }
+    }
+
+    template <typename Lambda> auto visit(QNativeIpcKey::Type keyType, const Lambda &lambda)
+    {
+        return visit_internal(d, keyType, lambda);
+    }
+
+    template <typename Lambda> static auto
+    staticVisit(QNativeIpcKey::Type keyType, const Lambda &lambda)
+    {
+        if constexpr ((IsEnabled<Member1> || ... || IsEnabled<Members>)) {
+            if constexpr (IsEnabled<Member1>) {
+                using MemberType1 = decltype(extractObject(Member1));
+                if (MemberType1::supports(keyType))
+                    return lambda(static_cast<MemberType1 *>(nullptr));
+            }
+            if constexpr ((... || IsEnabled<Members>))
+                return IpcStorageVariant<Members...>::staticVisit(keyType, lambda);
+            Q_UNREACHABLE();
+        } else {
+            // no backends enabled, but we can't return void
+            return false;
+        }
+    }
+};
+
+QNativeIpcKey legacyPlatformSafeKey(const QString &key, IpcType ipcType, QNativeIpcKey::Type type);
+QNativeIpcKey platformSafeKey(const QString &key, IpcType ipcType, QNativeIpcKey::Type type);
+
+#ifdef Q_OS_UNIX
+// Convenience function to create the file if needed
+inline int createUnixKeyFile(const QByteArray &fileName)
+{
+    int fd = qt_safe_open(fileName.constData(), O_EXCL | O_CREAT | O_RDWR, 0640);
+    if (fd < 0) {
+        if (errno == EEXIST)
+            return 0;
+        return -1;
+    } else {
+        close(fd);
+    }
+    return 1;
+
+}
+#endif // Q_OS_UNIX
+} // namespace QtIpcCommon
+
+QT_END_NAMESPACE
+
+#endif // QT_CONFIG(sharedmemory) || QT_CONFIG(systemsemaphore)
+
+
+#endif // QTIPCCOMMON_P_H
diff --git a/src/corelib/itemmodels/qabstractitemmodel.cpp b/src/corelib/itemmodels/qabstractitemmodel.cpp
index 3647ee9d..31a88e8f 100644
--- a/src/corelib/itemmodels/qabstractitemmodel.cpp
+++ b/src/corelib/itemmodels/qabstractitemmodel.cpp
@@ -2538,8 +2538,10 @@ QModelIndexList QAbstractItemModel::match(const QModelIndex &start, int role,
                         }
                     }
                 } else if (matchType == Qt::MatchWildcard) {
-                    if (rx.pattern().isEmpty())
-                        rx.setPattern(QRegularExpression::wildcardToRegularExpression(value.toString()));
+                    if (rx.pattern().isEmpty()) {
+                        const QString pattern = QRegularExpression::wildcardToRegularExpression(value.toString(), QRegularExpression::NonPathWildcardConversion);
+                        rx.setPattern(pattern);
+                    }
                     if (cs == Qt::CaseInsensitive)
                         rx.setPatternOptions(QRegularExpression::CaseInsensitiveOption);
                 } else
diff --git a/src/corelib/itemmodels/qabstractitemmodel.h b/src/corelib/itemmodels/qabstractitemmodel.h
index e5641224..86b3eb76 100644
--- a/src/corelib/itemmodels/qabstractitemmodel.h
+++ b/src/corelib/itemmodels/qabstractitemmodel.h
@@ -499,7 +499,13 @@ inline Qt::ItemFlags QModelIndex::flags() const
 { return m ? m->flags(*this) : Qt::ItemFlags(); }
 
 inline size_t qHash(const QModelIndex &index, size_t seed = 0) noexcept
-{ return size_t((size_t(index.row()) << 4) + size_t(index.column()) + index.internalId()) ^ seed; }
+{
+#if QT_VERSION >= QT_VERSION_CHECK(7, 0, 0)
+    return qHashMulti(seed, index.row(), index.column(), index.internalId());
+#else
+    return size_t((size_t(index.row()) << 4) + size_t(index.column()) + index.internalId()) ^ seed;
+#endif
+}
 
 QT_END_NAMESPACE
 
diff --git a/src/corelib/itemmodels/qabstractproxymodel.cpp b/src/corelib/itemmodels/qabstractproxymodel.cpp
index 9b5944de..83e8cb8d 100644
--- a/src/corelib/itemmodels/qabstractproxymodel.cpp
+++ b/src/corelib/itemmodels/qabstractproxymodel.cpp
@@ -173,13 +173,15 @@ void QAbstractProxyModel::setSourceModel(QAbstractItemModel *sourceModel)
         const char *signalName;
         const char *slotName;
     } connectionTable[] = {
+        // clang-format off
         { SIGNAL(destroyed()), SLOT(_q_sourceModelDestroyed()) },
-        { SIGNAL(rowsAboutToBeInserted(QModelIndex, int, int)), SLOT(_q_sourceModelRowsAboutToBeInserted(QModelIndex, int, int)) },
-        { SIGNAL(rowsInserted(QModelIndex, int, int)), SLOT(_q_sourceModelRowsInserted(QModelIndex, int, int)) },
-        { SIGNAL(rowsRemoved(QModelIndex, int, int)), SLOT(_q_sourceModelRowsRemoved(QModelIndex, int, int)) },
-        { SIGNAL(columnsAboutToBeInserted(QModelIndex, int, int)), SLOT(_q_sourceModelColumnsAboutToBeInserted(QModelIndex, int, int)) },
-        { SIGNAL(columnsInserted(QModelIndex, int, int)), SLOT(_q_sourceModelColumnsInserted(QModelIndex, int, int)) },
-        { SIGNAL(columnsRemoved(QModelIndex, int, int)), SLOT(_q_sourceModelColumnsRemoved(QModelIndex, int, int)) }
+        { SIGNAL(rowsAboutToBeInserted(QModelIndex,int,int)), SLOT(_q_sourceModelRowsAboutToBeInserted(QModelIndex,int,int)) },
+        { SIGNAL(rowsInserted(QModelIndex,int,int)), SLOT(_q_sourceModelRowsInserted(QModelIndex,int,int)) },
+        { SIGNAL(rowsRemoved(QModelIndex,int,int)), SLOT(_q_sourceModelRowsRemoved(QModelIndex,int,int)) },
+        { SIGNAL(columnsAboutToBeInserted(QModelIndex,int,int)), SLOT(_q_sourceModelColumnsAboutToBeInserted(QModelIndex,int,int)) },
+        { SIGNAL(columnsInserted(QModelIndex,int,int)), SLOT(_q_sourceModelColumnsInserted(QModelIndex,int,int)) },
+        { SIGNAL(columnsRemoved(QModelIndex,int,int)), SLOT(_q_sourceModelColumnsRemoved(QModelIndex,int,int)) }
+        // clang-format on
     };
 
     if (sourceModel != currentModel) {
diff --git a/src/corelib/itemmodels/qconcatenatetablesproxymodel.cpp b/src/corelib/itemmodels/qconcatenatetablesproxymodel.cpp
index 44cf28b4..e6d12cd7 100644
--- a/src/corelib/itemmodels/qconcatenatetablesproxymodel.cpp
+++ b/src/corelib/itemmodels/qconcatenatetablesproxymodel.cpp
@@ -446,10 +446,10 @@ void QConcatenateTablesProxyModel::addSourceModel(QAbstractItemModel *sourceMode
     connect(sourceModel, SIGNAL(columnsAboutToBeInserted(QModelIndex,int,int)), this, SLOT(_q_slotColumnsAboutToBeInserted(QModelIndex,int,int)));
     connect(sourceModel, SIGNAL(columnsAboutToBeRemoved(QModelIndex,int,int)), this, SLOT(_q_slotColumnsAboutToBeRemoved(QModelIndex,int,int)));
 
-    connect(sourceModel, SIGNAL(layoutAboutToBeChanged(QList<QPersistentModelIndex>, QAbstractItemModel::LayoutChangeHint)),
-            this, SLOT(_q_slotSourceLayoutAboutToBeChanged(QList<QPersistentModelIndex>, QAbstractItemModel::LayoutChangeHint)));
-    connect(sourceModel, SIGNAL(layoutChanged(QList<QPersistentModelIndex>, QAbstractItemModel::LayoutChangeHint)),
-            this, SLOT(_q_slotSourceLayoutChanged(QList<QPersistentModelIndex>, QAbstractItemModel::LayoutChangeHint)));
+    connect(sourceModel, SIGNAL(layoutAboutToBeChanged(QList<QPersistentModelIndex>,QAbstractItemModel::LayoutChangeHint)),
+            this, SLOT(_q_slotSourceLayoutAboutToBeChanged(QList<QPersistentModelIndex>,QAbstractItemModel::LayoutChangeHint)));
+    connect(sourceModel, SIGNAL(layoutChanged(QList<QPersistentModelIndex>,QAbstractItemModel::LayoutChangeHint)),
+            this, SLOT(_q_slotSourceLayoutChanged(QList<QPersistentModelIndex>,QAbstractItemModel::LayoutChangeHint)));
     connect(sourceModel, SIGNAL(modelAboutToBeReset()), this, SLOT(_q_slotModelAboutToBeReset()));
     connect(sourceModel, SIGNAL(modelReset()), this, SLOT(_q_slotModelReset()));
 
diff --git a/src/corelib/itemmodels/qsortfilterproxymodel.cpp b/src/corelib/itemmodels/qsortfilterproxymodel.cpp
index fac5a7b7..4600bcd9 100644
--- a/src/corelib/itemmodels/qsortfilterproxymodel.cpp
+++ b/src/corelib/itemmodels/qsortfilterproxymodel.cpp
@@ -109,9 +109,9 @@ private:
 
 class QSortFilterProxyModelPrivate : public QAbstractProxyModelPrivate
 {
+public:
     Q_DECLARE_PUBLIC(QSortFilterProxyModel)
 
-public:
     enum class Direction {
         Rows = 1,
         Columns = 2,
@@ -238,6 +238,8 @@ public:
     QModelIndexPairList saved_persistent_indexes;
     QList<QPersistentModelIndex> saved_layoutChange_parents;
 
+    std::array<QMetaObject::Connection, 18> sourceConnections;
+
     QHash<QModelIndex, Mapping *>::const_iterator create_mapping(
         const QModelIndex &source_parent) const;
     QHash<QModelIndex, Mapping *>::const_iterator create_mapping_recursive(
@@ -2006,7 +2008,9 @@ void QSortFilterProxyModelPrivate::_q_sourceColumnsMoved(
 QSortFilterProxyModel::QSortFilterProxyModel(QObject *parent)
     : QAbstractProxyModel(*new QSortFilterProxyModelPrivate, parent)
 {
-    connect(this, SIGNAL(modelReset()), this, SLOT(_q_clearMapping()));
+    Q_D(QSortFilterProxyModel);
+    QObjectPrivate::connect(this, &QAbstractItemModel::modelReset, d,
+                            &QSortFilterProxyModelPrivate::_q_clearMapping);
 }
 
 /*!
@@ -2031,56 +2035,10 @@ void QSortFilterProxyModel::setSourceModel(QAbstractItemModel *sourceModel)
 
     beginResetModel();
 
-    disconnect(d->model, SIGNAL(dataChanged(QModelIndex,QModelIndex,QList<int>)),
-               this, SLOT(_q_sourceDataChanged(QModelIndex,QModelIndex,QList<int>)));
-
-    disconnect(d->model, SIGNAL(headerDataChanged(Qt::Orientation,int,int)),
-               this, SLOT(_q_sourceHeaderDataChanged(Qt::Orientation,int,int)));
-
-    disconnect(d->model, SIGNAL(rowsAboutToBeInserted(QModelIndex,int,int)),
-               this, SLOT(_q_sourceRowsAboutToBeInserted(QModelIndex,int,int)));
-
-    disconnect(d->model, SIGNAL(rowsInserted(QModelIndex,int,int)),
-               this, SLOT(_q_sourceRowsInserted(QModelIndex,int,int)));
-
-    disconnect(d->model, SIGNAL(columnsAboutToBeInserted(QModelIndex,int,int)),
-               this, SLOT(_q_sourceColumnsAboutToBeInserted(QModelIndex,int,int)));
-
-    disconnect(d->model, SIGNAL(columnsInserted(QModelIndex,int,int)),
-               this, SLOT(_q_sourceColumnsInserted(QModelIndex,int,int)));
-
-    disconnect(d->model, SIGNAL(rowsAboutToBeRemoved(QModelIndex,int,int)),
-               this, SLOT(_q_sourceRowsAboutToBeRemoved(QModelIndex,int,int)));
-
-    disconnect(d->model, SIGNAL(rowsRemoved(QModelIndex,int,int)),
-               this, SLOT(_q_sourceRowsRemoved(QModelIndex,int,int)));
-
-    disconnect(d->model, SIGNAL(columnsAboutToBeRemoved(QModelIndex,int,int)),
-               this, SLOT(_q_sourceColumnsAboutToBeRemoved(QModelIndex,int,int)));
-
-    disconnect(d->model, SIGNAL(columnsRemoved(QModelIndex,int,int)),
-               this, SLOT(_q_sourceColumnsRemoved(QModelIndex,int,int)));
-
-    disconnect(d->model, SIGNAL(rowsAboutToBeMoved(QModelIndex,int,int,QModelIndex,int)),
-               this, SLOT(_q_sourceRowsAboutToBeMoved(QModelIndex,int,int,QModelIndex,int)));
-
-    disconnect(d->model, SIGNAL(rowsMoved(QModelIndex,int,int,QModelIndex,int)),
-               this, SLOT(_q_sourceRowsMoved(QModelIndex,int,int,QModelIndex,int)));
-
-    disconnect(d->model, SIGNAL(columnsAboutToBeMoved(QModelIndex,int,int,QModelIndex,int)),
-               this, SLOT(_q_sourceColumnsAboutToBeMoved(QModelIndex,int,int,QModelIndex,int)));
-
-    disconnect(d->model, SIGNAL(columnsMoved(QModelIndex,int,int,QModelIndex,int)),
-               this, SLOT(_q_sourceColumnsMoved(QModelIndex,int,int,QModelIndex,int)));
-
-    disconnect(d->model, SIGNAL(layoutAboutToBeChanged(QList<QPersistentModelIndex>,QAbstractItemModel::LayoutChangeHint)),
-               this, SLOT(_q_sourceLayoutAboutToBeChanged(QList<QPersistentModelIndex>,QAbstractItemModel::LayoutChangeHint)));
-
-    disconnect(d->model, SIGNAL(layoutChanged(QList<QPersistentModelIndex>,QAbstractItemModel::LayoutChangeHint)),
-               this, SLOT(_q_sourceLayoutChanged(QList<QPersistentModelIndex>,QAbstractItemModel::LayoutChangeHint)));
-
-    disconnect(d->model, SIGNAL(modelAboutToBeReset()), this, SLOT(_q_sourceAboutToBeReset()));
-    disconnect(d->model, SIGNAL(modelReset()), this, SLOT(_q_sourceReset()));
+    if (d->model) {
+        for (const QMetaObject::Connection &connection : std::as_const(d->sourceConnections))
+            disconnect(connection);
+    }
 
     // same as in _q_sourceReset()
     d->invalidatePersistentIndexes();
@@ -2088,57 +2046,61 @@ void QSortFilterProxyModel::setSourceModel(QAbstractItemModel *sourceModel)
 
     QAbstractProxyModel::setSourceModel(sourceModel);
 
-    connect(d->model, SIGNAL(dataChanged(QModelIndex,QModelIndex,QList<int>)),
-            this, SLOT(_q_sourceDataChanged(QModelIndex,QModelIndex,QList<int>)));
+    d->sourceConnections = std::array<QMetaObject::Connection, 18>{
+        QObjectPrivate::connect(d->model, &QAbstractItemModel::dataChanged, d,
+                                &QSortFilterProxyModelPrivate::_q_sourceDataChanged),
 
-    connect(d->model, SIGNAL(headerDataChanged(Qt::Orientation,int,int)),
-            this, SLOT(_q_sourceHeaderDataChanged(Qt::Orientation,int,int)));
+        QObjectPrivate::connect(d->model, &QAbstractItemModel::headerDataChanged, d,
+                                &QSortFilterProxyModelPrivate::_q_sourceHeaderDataChanged),
 
-    connect(d->model, SIGNAL(rowsAboutToBeInserted(QModelIndex,int,int)),
-            this, SLOT(_q_sourceRowsAboutToBeInserted(QModelIndex,int,int)));
+        QObjectPrivate::connect(d->model, &QAbstractItemModel::rowsAboutToBeInserted, d,
+                                &QSortFilterProxyModelPrivate::_q_sourceRowsAboutToBeInserted),
 
-    connect(d->model, SIGNAL(rowsInserted(QModelIndex,int,int)),
-            this, SLOT(_q_sourceRowsInserted(QModelIndex,int,int)));
+        QObjectPrivate::connect(d->model, &QAbstractItemModel::rowsInserted, d,
+                                &QSortFilterProxyModelPrivate::_q_sourceRowsInserted),
 
-    connect(d->model, SIGNAL(columnsAboutToBeInserted(QModelIndex,int,int)),
-            this, SLOT(_q_sourceColumnsAboutToBeInserted(QModelIndex,int,int)));
+        QObjectPrivate::connect(d->model, &QAbstractItemModel::columnsAboutToBeInserted, d,
+                                &QSortFilterProxyModelPrivate::_q_sourceColumnsAboutToBeInserted),
 
-    connect(d->model, SIGNAL(columnsInserted(QModelIndex,int,int)),
-            this, SLOT(_q_sourceColumnsInserted(QModelIndex,int,int)));
+        QObjectPrivate::connect(d->model, &QAbstractItemModel::columnsInserted, d,
+                                &QSortFilterProxyModelPrivate::_q_sourceColumnsInserted),
 
-    connect(d->model, SIGNAL(rowsAboutToBeRemoved(QModelIndex,int,int)),
-            this, SLOT(_q_sourceRowsAboutToBeRemoved(QModelIndex,int,int)));
+        QObjectPrivate::connect(d->model, &QAbstractItemModel::rowsAboutToBeRemoved, d,
+                                &QSortFilterProxyModelPrivate::_q_sourceRowsAboutToBeRemoved),
 
-    connect(d->model, SIGNAL(rowsRemoved(QModelIndex,int,int)),
-            this, SLOT(_q_sourceRowsRemoved(QModelIndex,int,int)));
+        QObjectPrivate::connect(d->model, &QAbstractItemModel::rowsRemoved, d,
+                                &QSortFilterProxyModelPrivate::_q_sourceRowsRemoved),
 
-    connect(d->model, SIGNAL(columnsAboutToBeRemoved(QModelIndex,int,int)),
-            this, SLOT(_q_sourceColumnsAboutToBeRemoved(QModelIndex,int,int)));
+        QObjectPrivate::connect(d->model, &QAbstractItemModel::columnsAboutToBeRemoved, d,
+                                &QSortFilterProxyModelPrivate::_q_sourceColumnsAboutToBeRemoved),
 
-    connect(d->model, SIGNAL(columnsRemoved(QModelIndex,int,int)),
-            this, SLOT(_q_sourceColumnsRemoved(QModelIndex,int,int)));
+        QObjectPrivate::connect(d->model, &QAbstractItemModel::columnsRemoved, d,
+                                &QSortFilterProxyModelPrivate::_q_sourceColumnsRemoved),
 
-    connect(d->model, SIGNAL(rowsAboutToBeMoved(QModelIndex,int,int,QModelIndex,int)),
-            this, SLOT(_q_sourceRowsAboutToBeMoved(QModelIndex,int,int,QModelIndex,int)));
+        QObjectPrivate::connect(d->model, &QAbstractItemModel::rowsAboutToBeMoved, d,
+                                &QSortFilterProxyModelPrivate::_q_sourceRowsAboutToBeMoved),
 
-    connect(d->model, SIGNAL(rowsMoved(QModelIndex,int,int,QModelIndex,int)),
-            this, SLOT(_q_sourceRowsMoved(QModelIndex,int,int,QModelIndex,int)));
+        QObjectPrivate::connect(d->model, &QAbstractItemModel::rowsMoved, d,
+                                &QSortFilterProxyModelPrivate::_q_sourceRowsMoved),
 
-    connect(d->model, SIGNAL(columnsAboutToBeMoved(QModelIndex,int,int,QModelIndex,int)),
-            this, SLOT(_q_sourceColumnsAboutToBeMoved(QModelIndex,int,int,QModelIndex,int)));
+        QObjectPrivate::connect(d->model, &QAbstractItemModel::columnsAboutToBeMoved, d,
+                                &QSortFilterProxyModelPrivate::_q_sourceColumnsAboutToBeMoved),
 
-    connect(d->model, SIGNAL(columnsMoved(QModelIndex,int,int,QModelIndex,int)),
-            this, SLOT(_q_sourceColumnsMoved(QModelIndex,int,int,QModelIndex,int)));
+        QObjectPrivate::connect(d->model, &QAbstractItemModel::columnsMoved, d,
+                                &QSortFilterProxyModelPrivate::_q_sourceColumnsMoved),
 
-    connect(d->model, SIGNAL(layoutAboutToBeChanged(QList<QPersistentModelIndex>,QAbstractItemModel::LayoutChangeHint)),
-            this, SLOT(_q_sourceLayoutAboutToBeChanged(QList<QPersistentModelIndex>,QAbstractItemModel::LayoutChangeHint)));
+        QObjectPrivate::connect(d->model, &QAbstractItemModel::layoutAboutToBeChanged, d,
+                                &QSortFilterProxyModelPrivate::_q_sourceLayoutAboutToBeChanged),
 
-    connect(d->model, SIGNAL(layoutChanged(QList<QPersistentModelIndex>,QAbstractItemModel::LayoutChangeHint)),
-            this, SLOT(_q_sourceLayoutChanged(QList<QPersistentModelIndex>,QAbstractItemModel::LayoutChangeHint)));
+        QObjectPrivate::connect(d->model, &QAbstractItemModel::layoutChanged, d,
+                                &QSortFilterProxyModelPrivate::_q_sourceLayoutChanged),
 
-    connect(d->model, SIGNAL(modelAboutToBeReset()), this, SLOT(_q_sourceAboutToBeReset()));
-    connect(d->model, SIGNAL(modelReset()), this, SLOT(_q_sourceReset()));
+        QObjectPrivate::connect(d->model, &QAbstractItemModel::modelAboutToBeReset, d,
+                                &QSortFilterProxyModelPrivate::_q_sourceAboutToBeReset),
 
+        QObjectPrivate::connect(d->model, &QAbstractItemModel::modelReset, d,
+                                &QSortFilterProxyModelPrivate::_q_sourceReset)
+    };
     endResetModel();
     if (d->update_source_sort_column() && d->dynamic_sortfilter)
         d->sort();
@@ -2620,7 +2582,7 @@ QBindable<QRegularExpression> QSortFilterProxyModel::bindableFilterRegularExpres
 void QSortFilterProxyModel::setFilterRegularExpression(const QRegularExpression &regularExpression)
 {
     Q_D(QSortFilterProxyModel);
-    Qt::beginPropertyUpdateGroup();
+    const QScopedPropertyUpdateGroup guard;
     const bool regExpChanged =
             regularExpression != d->filter_regularexpression.valueBypassingBindings();
     d->filter_regularexpression.removeBindingUnlessInWrapper();
@@ -2640,7 +2602,6 @@ void QSortFilterProxyModel::setFilterRegularExpression(const QRegularExpression
         d->filter_regularexpression.notify();
     if (cs != updatedCs)
         d->filter_casesensitive.notify();
-    Qt::endPropertyUpdateGroup();
 }
 
 /*!
@@ -2716,7 +2677,7 @@ void QSortFilterProxyModel::setFilterCaseSensitivity(Qt::CaseSensitivity cs)
     if (cs == d->filter_casesensitive)
         return;
 
-    Qt::beginPropertyUpdateGroup();
+    const QScopedPropertyUpdateGroup guard;
     QRegularExpression::PatternOptions options =
             d->filter_regularexpression.value().patternOptions();
     options.setFlag(QRegularExpression::CaseInsensitiveOption, cs == Qt::CaseInsensitive);
@@ -2729,7 +2690,6 @@ void QSortFilterProxyModel::setFilterCaseSensitivity(Qt::CaseSensitivity cs)
     d->filter_changed(QSortFilterProxyModelPrivate::Direction::Rows);
     d->filter_regularexpression.notify();
     d->filter_casesensitive.notify();
-    Qt::endPropertyUpdateGroup();
 }
 
 QBindable<Qt::CaseSensitivity> QSortFilterProxyModel::bindableFilterCaseSensitivity()
diff --git a/src/corelib/itemmodels/qsortfilterproxymodel.h b/src/corelib/itemmodels/qsortfilterproxymodel.h
index bbd829d7..9d5b2fac 100644
--- a/src/corelib/itemmodels/qsortfilterproxymodel.h
+++ b/src/corelib/itemmodels/qsortfilterproxymodel.h
@@ -172,28 +172,6 @@ Q_SIGNALS:
 private:
     Q_DECLARE_PRIVATE(QSortFilterProxyModel)
     Q_DISABLE_COPY(QSortFilterProxyModel)
-
-    Q_PRIVATE_SLOT(d_func(),
-                   void _q_sourceDataChanged(const QModelIndex &source_top_left, const QModelIndex &source_bottom_right,
-                                             const QList<int> &roles))
-    Q_PRIVATE_SLOT(d_func(), void _q_sourceHeaderDataChanged(Qt::Orientation orientation, int start, int end))
-    Q_PRIVATE_SLOT(d_func(), void _q_sourceAboutToBeReset())
-    Q_PRIVATE_SLOT(d_func(), void _q_sourceReset())
-    Q_PRIVATE_SLOT(d_func(), void _q_sourceLayoutAboutToBeChanged(const QList<QPersistentModelIndex> &sourceParents, QAbstractItemModel::LayoutChangeHint hint))
-    Q_PRIVATE_SLOT(d_func(), void _q_sourceLayoutChanged(const QList<QPersistentModelIndex> &sourceParents, QAbstractItemModel::LayoutChangeHint hint))
-    Q_PRIVATE_SLOT(d_func(), void _q_sourceRowsAboutToBeInserted(const QModelIndex &source_parent, int start, int end))
-    Q_PRIVATE_SLOT(d_func(), void _q_sourceRowsInserted(const QModelIndex &source_parent, int start, int end))
-    Q_PRIVATE_SLOT(d_func(), void _q_sourceRowsAboutToBeRemoved(const QModelIndex &source_parent, int start, int end))
-    Q_PRIVATE_SLOT(d_func(), void _q_sourceRowsRemoved(const QModelIndex &source_parent, int start, int end))
-    Q_PRIVATE_SLOT(d_func(), void _q_sourceRowsAboutToBeMoved(QModelIndex,int,int,QModelIndex,int))
-    Q_PRIVATE_SLOT(d_func(), void _q_sourceRowsMoved(QModelIndex,int,int,QModelIndex,int))
-    Q_PRIVATE_SLOT(d_func(), void _q_sourceColumnsAboutToBeInserted(const QModelIndex &source_parent, int start, int end))
-    Q_PRIVATE_SLOT(d_func(), void _q_sourceColumnsInserted(const QModelIndex &source_parent, int start, int end))
-    Q_PRIVATE_SLOT(d_func(), void _q_sourceColumnsAboutToBeRemoved(const QModelIndex &source_parent, int start, int end))
-    Q_PRIVATE_SLOT(d_func(), void _q_sourceColumnsRemoved(const QModelIndex &source_parent, int start, int end))
-    Q_PRIVATE_SLOT(d_func(), void _q_sourceColumnsAboutToBeMoved(QModelIndex,int,int,QModelIndex,int))
-    Q_PRIVATE_SLOT(d_func(), void _q_sourceColumnsMoved(QModelIndex,int,int,QModelIndex,int))
-    Q_PRIVATE_SLOT(d_func(), void _q_clearMapping())
 };
 
 QT_END_NAMESPACE
diff --git a/src/corelib/kernel/qabstracteventdispatcher.cpp b/src/corelib/kernel/qabstracteventdispatcher.cpp
index 3001e326..98493946 100644
--- a/src/corelib/kernel/qabstracteventdispatcher.cpp
+++ b/src/corelib/kernel/qabstracteventdispatcher.cpp
@@ -52,6 +52,15 @@ Q_CONSTINIT const int QtTimerIdFreeListConstants::Sizes[QtTimerIdFreeListConstan
 typedef QFreeList<void, QtTimerIdFreeListConstants> QtTimerIdFreeList;
 Q_GLOBAL_STATIC(QtTimerIdFreeList, timerIdFreeList)
 
+QAbstractEventDispatcherPrivate::QAbstractEventDispatcherPrivate()
+{
+    // Create the timer ID free list here to make sure that it is destroyed
+    // after any global static thread that may be using it.
+    // See also QTBUG-58732.
+    if (!timerIdFreeList.isDestroyed())
+        (void)timerIdFreeList();
+}
+
 QAbstractEventDispatcherPrivate::~QAbstractEventDispatcherPrivate()
     = default;
 
diff --git a/src/corelib/kernel/qabstracteventdispatcher_p.h b/src/corelib/kernel/qabstracteventdispatcher_p.h
index e7b1ac3b..7d57fd03 100644
--- a/src/corelib/kernel/qabstracteventdispatcher_p.h
+++ b/src/corelib/kernel/qabstracteventdispatcher_p.h
@@ -26,8 +26,7 @@ class Q_CORE_EXPORT QAbstractEventDispatcherPrivate : public QObjectPrivate
 {
     Q_DECLARE_PUBLIC(QAbstractEventDispatcher)
 public:
-    inline QAbstractEventDispatcherPrivate()
-    { }
+    QAbstractEventDispatcherPrivate();
     ~QAbstractEventDispatcherPrivate() override;
 
     QList<QAbstractNativeEventFilter *> eventFilters;
diff --git a/src/corelib/kernel/qapplicationstatic.qdoc b/src/corelib/kernel/qapplicationstatic.qdoc
index 82eb7265..5cbac65d 100644
--- a/src/corelib/kernel/qapplicationstatic.qdoc
+++ b/src/corelib/kernel/qapplicationstatic.qdoc
@@ -20,9 +20,8 @@
     the QCoreApplication. This makes it ideal to store semi-static QObjects, which
     should also be destroyed once the QCoreApplication is destroyed. This means the
     type will get deleted once the QCoreApplication emits the destroyed signal.
-    However, as long as the actual holder is still in the initialized state, the
-    type will be recreated when it's accessed again once a new QCoreApplication
-    has been created.
+    It is permitted for the object to be recreated when it's accessed again, if
+    a new QCoreApplication has also been created.
 
     Since the value is bound to the QCoreApplication, it should only ever be
     accessed if there is a valid QCoreApplication::instance(). Accessing this
@@ -45,6 +44,31 @@
     this macro behaves identically to Q_GLOBAL_STATIC(). Please see that macro's
     documentation for more information.
 
+    \section1 Threading guarantees
+
+    The Q_APPLICATION_STATIC macro ensures that the object is initialized only
+    once (per lifetime of a QCoreApplication), even if multiple threads try to
+    concurrently access the object. This is done by providing a per-object
+    mutex; application and library developers need to be aware that their
+    object will be constructed with this mutex locked and therefore must not
+    reenter the same object's initialization, or a deadlock will occur.
+
+    There is no thread-safety on the destruction of the object: user code must
+    not access this object once the QCoreApplication destructor starts to run.
+    User code must arrange to ensure this does not happen, such as by not
+    accessing it once the main thread's event loop has exited.
+
+    Like Q_GLOBAL_STATIC, Q_APPLICATION_STATIC provides no thread-safety
+    guarantees for accesses to the object once creation is finished. It is up
+    to user code to ensure that no racy data accesses happen.
+
+    In case the object created by this operation is a QObject, its associated
+    thread will be the one that succeeded in creating it. It will be destroyed
+    by the main thread, so a \l{QObject::}{moveToThread()} to the main thread
+    or to no thread before destruction is adviseable. Doing so from the
+    constructor of the class in question is a sensible solution if one can't
+    guarantee that the main thread will be the one to initialize the object.
+
     \omit
     \section1 Implementation details
     See \l Q_GLOBAL_STATIC implementation details for an introduction.
diff --git a/src/corelib/kernel/qbasictimer.cpp b/src/corelib/kernel/qbasictimer.cpp
index b843ec1e..cf9c0bbc 100644
--- a/src/corelib/kernel/qbasictimer.cpp
+++ b/src/corelib/kernel/qbasictimer.cpp
@@ -86,10 +86,18 @@ QT_BEGIN_NAMESPACE
 
 /*!
     \fn QBasicTimer::swap(QBasicTimer &other)
-    \fn swap(QBasicTimer &lhs, QBasicTimer &rhs)
     \since 5.14
 
-    Swaps string \a other with this string, or \a lhs with \a rhs.
+    Swaps the timer \a other with this timer.
+    This operation is very fast and never fails.
+*/
+
+/*!
+    \fn swap(QBasicTimer &lhs, QBasicTimer &rhs)
+    \relates QBasicTimer
+    \since 5.14
+
+    Swaps the timer \a lhs with \a rhs.
     This operation is very fast and never fails.
 */
 
diff --git a/src/corelib/kernel/qcore_mac.mm b/src/corelib/kernel/qcore_mac.mm
index c5f9a191..12bf81f0 100644
--- a/src/corelib/kernel/qcore_mac.mm
+++ b/src/corelib/kernel/qcore_mac.mm
@@ -242,10 +242,20 @@ QT_USE_NAMESPACE
 QT_NAMESPACE_ALIAS_OBJC_CLASS(QMacAutoReleasePoolTracker);
 #endif // QT_DEBUG
 
+// Use the direct runtime interface to manage autorelease pools, as it
+// has less overhead then allocating NSAutoreleasePools, and allows for
+// a future where we use ARC (where NSAutoreleasePool is not allowed).
+// https://clang.llvm.org/docs/AutomaticReferenceCounting.html#runtime-support
+
+extern "C" {
+void *objc_autoreleasePoolPush(void);
+void objc_autoreleasePoolPop(void *pool);
+}
+
 QT_BEGIN_NAMESPACE
 
 QMacAutoReleasePool::QMacAutoReleasePool()
-    : pool([[NSAutoreleasePool alloc] init])
+    : pool(objc_autoreleasePoolPush())
 {
 #ifdef QT_DEBUG
     static const bool debugAutoReleasePools = qEnvironmentVariableIsSet("QT_DARWIN_DEBUG_AUTORELEASEPOOLS");
@@ -290,10 +300,7 @@ QMacAutoReleasePool::QMacAutoReleasePool()
 
 QMacAutoReleasePool::~QMacAutoReleasePool()
 {
-    // Drain behaves the same as release, with the advantage that
-    // if we're ever used in a garbage-collected environment, the
-    // drain acts as a hint to the garbage collector to collect.
-    [static_cast<NSAutoreleasePool*>(pool) drain];
+    objc_autoreleasePoolPop(pool);
 }
 
 #ifndef QT_NO_DEBUG_STREAM
diff --git a/src/corelib/kernel/qcore_mac_p.h b/src/corelib/kernel/qcore_mac_p.h
index 22c045f3..1b0283e7 100644
--- a/src/corelib/kernel/qcore_mac_p.h
+++ b/src/corelib/kernel/qcore_mac_p.h
@@ -85,15 +85,18 @@ template <typename T, typename U, auto RetainFunction, auto ReleaseFunction>
 class QAppleRefCounted
 {
 public:
-    QAppleRefCounted() : value() {}
-    QAppleRefCounted(const T &t) : value(t) {}
-    QAppleRefCounted(T &&t) noexcept(std::is_nothrow_move_constructible<T>::value)
+    Q_NODISCARD_CTOR QAppleRefCounted() : value() {}
+    Q_NODISCARD_CTOR QAppleRefCounted(const T &t) : value(t) {}
+    Q_NODISCARD_CTOR QAppleRefCounted(T &&t)
+            noexcept(std::is_nothrow_move_constructible<T>::value)
         : value(std::move(t)) {}
-    QAppleRefCounted(QAppleRefCounted &&other)
+    Q_NODISCARD_CTOR QAppleRefCounted(QAppleRefCounted &&other)
             noexcept(std::is_nothrow_move_assignable<T>::value &&
                      std::is_nothrow_move_constructible<T>::value)
         : value(std::exchange(other.value, T())) {}
-    QAppleRefCounted(const QAppleRefCounted &other) : value(other.value) { if (value) RetainFunction(value); }
+    Q_NODISCARD_CTOR QAppleRefCounted(const QAppleRefCounted &other)
+        : value(other.value)
+    { if (value) RetainFunction(value); }
     ~QAppleRefCounted() { if (value) ReleaseFunction(value); }
     operator T() const { return value; }
     void swap(QAppleRefCounted &other) noexcept(noexcept(qSwap(value, other.value)))
@@ -109,11 +112,11 @@ protected:
     T value;
 };
 
-class Q_CORE_EXPORT QMacAutoReleasePool
+class QMacAutoReleasePool
 {
 public:
-    QMacAutoReleasePool();
-    ~QMacAutoReleasePool();
+    Q_NODISCARD_CTOR Q_CORE_EXPORT QMacAutoReleasePool();
+    Q_CORE_EXPORT ~QMacAutoReleasePool();
 private:
     Q_DISABLE_COPY(QMacAutoReleasePool)
     void *pool;
@@ -123,7 +126,7 @@ private:
 class QMacRootLevelAutoReleasePool
 {
 public:
-    QMacRootLevelAutoReleasePool();
+    Q_NODISCARD_CTOR QMacRootLevelAutoReleasePool();
     ~QMacRootLevelAutoReleasePool();
 private:
     QScopedPointer<QMacAutoReleasePool> pool;
@@ -148,7 +151,7 @@ class QCFType : public QAppleRefCounted<T, CFTypeRef, CFRetain, CFRelease>
     using Base = QAppleRefCounted<T, CFTypeRef, CFRetain, CFRelease>;
 public:
     using Base::Base;
-    explicit QCFType(CFTypeRef r) : Base(static_cast<T>(r)) {}
+    Q_NODISCARD_CTOR explicit QCFType(CFTypeRef r) : Base(static_cast<T>(r)) {}
     template <typename X> X as() const { return reinterpret_cast<X>(this->value); }
     static QCFType constructFromGet(const T &t)
     {
@@ -166,15 +169,15 @@ class QIOType : public QAppleRefCounted<T, io_object_t, IOObjectRetain, IOObject
 };
 #endif
 
-class Q_CORE_EXPORT QCFString : public QCFType<CFStringRef>
+class QCFString : public QCFType<CFStringRef>
 {
 public:
     using QCFType<CFStringRef>::QCFType;
-    inline QCFString(const QString &str) : QCFType<CFStringRef>(0), string(str) {}
-    inline QCFString(const CFStringRef cfstr = 0) : QCFType<CFStringRef>(cfstr) {}
-    inline QCFString(const QCFType<CFStringRef> &other) : QCFType<CFStringRef>(other) {}
-    operator QString() const;
-    operator CFStringRef() const;
+    Q_NODISCARD_CTOR QCFString(const QString &str) : QCFType<CFStringRef>(0), string(str) {}
+    Q_NODISCARD_CTOR QCFString(const CFStringRef cfstr = 0) : QCFType<CFStringRef>(cfstr) {}
+    Q_NODISCARD_CTOR QCFString(const QCFType<CFStringRef> &other) : QCFType<CFStringRef>(other) {}
+    Q_CORE_EXPORT operator QString() const;
+    Q_CORE_EXPORT operator CFStringRef() const;
 
 private:
     QString string;
@@ -438,6 +441,20 @@ private:
 
 // -------------------------------------------------------------------------
 
+#ifdef __OBJC__
+template <typename T>
+typename std::enable_if<std::is_pointer<T>::value, T>::type
+qt_objc_cast(id object)
+{
+    if ([object isKindOfClass:[typename std::remove_pointer<T>::type class]])
+        return static_cast<T>(object);
+
+    return nil;
+}
+#endif
+
+// -------------------------------------------------------------------------
+
 QT_END_NAMESPACE
 
 #endif // QCORE_MAC_P_H
diff --git a/src/corelib/kernel/qcore_unix.cpp b/src/corelib/kernel/qcore_unix.cpp
index 570e3056..78d99a38 100644
--- a/src/corelib/kernel/qcore_unix.cpp
+++ b/src/corelib/kernel/qcore_unix.cpp
@@ -14,7 +14,7 @@
 #  include <unistd.h>
 #endif
 
-#ifdef Q_OS_MAC
+#ifdef Q_OS_DARWIN
 #include <mach/mach_time.h>
 #endif
 
@@ -65,6 +65,34 @@ int qt_open64(const char *pathname, int flags, mode_t mode)
 
 #ifndef QT_BOOTSTRAPPED
 
+static inline void do_gettime(qint64 *sec, qint64 *frac)
+{
+    timespec ts;
+    clockid_t clk = CLOCK_REALTIME;
+#if defined(CLOCK_MONOTONIC_RAW)
+    clk = CLOCK_MONOTONIC_RAW;
+#elif defined(CLOCK_MONOTONIC)
+    clk = CLOCK_MONOTONIC;
+#endif
+
+    clock_gettime(clk, &ts);
+    *sec = ts.tv_sec;
+    *frac = ts.tv_nsec;
+}
+
+// also used in qeventdispatcher_unix.cpp
+struct timespec qt_gettime() noexcept
+{
+    qint64 sec, frac;
+    do_gettime(&sec, &frac);
+
+    timespec tv;
+    tv.tv_sec = sec;
+    tv.tv_nsec = frac;
+
+    return tv;
+}
+
 #if QT_CONFIG(poll_pollts)
 #  define ppoll pollts
 #endif
diff --git a/src/corelib/kernel/qcore_unix_p.h b/src/corelib/kernel/qcore_unix_p.h
index 38c8b64f..ed64a5d8 100644
--- a/src/corelib/kernel/qcore_unix_p.h
+++ b/src/corelib/kernel/qcore_unix_p.h
@@ -39,6 +39,7 @@
 #  include <selectLib.h>
 #endif
 
+#include <chrono>
 #include <sys/wait.h>
 #include <errno.h>
 #include <fcntl.h>
@@ -68,16 +69,41 @@ QT_BEGIN_NAMESPACE
 
 Q_DECLARE_TYPEINFO(pollfd, Q_PRIMITIVE_TYPE);
 
+static constexpr auto OneSecAsNsecs = std::chrono::nanoseconds(std::chrono::seconds{ 1 }).count();
+
+inline timespec durationToTimespec(std::chrono::nanoseconds timeout) noexcept
+{
+    using namespace std::chrono;
+    const seconds secs = duration_cast<seconds>(timeout);
+    const nanoseconds frac = timeout - secs;
+    struct timespec ts;
+    ts.tv_sec = secs.count();
+    ts.tv_nsec = frac.count();
+    return ts;
+}
+
+template <typename Duration>
+inline Duration timespecToChrono(timespec ts) noexcept
+{
+    using namespace std::chrono;
+    return duration_cast<Duration>(seconds{ts.tv_sec} + nanoseconds{ts.tv_nsec});
+}
+
+inline std::chrono::milliseconds timespecToChronoMs(timespec ts) noexcept
+{
+    return timespecToChrono<std::chrono::milliseconds>(ts);
+}
+
 // Internal operator functions for timespecs
 constexpr inline timespec &normalizedTimespec(timespec &t)
 {
-    while (t.tv_nsec >= 1000000000) {
+    while (t.tv_nsec >= OneSecAsNsecs) {
         ++t.tv_sec;
-        t.tv_nsec -= 1000000000;
+        t.tv_nsec -= OneSecAsNsecs;
     }
     while (t.tv_nsec < 0) {
         --t.tv_sec;
-        t.tv_nsec += 1000000000;
+        t.tv_nsec += OneSecAsNsecs;
     }
     return t;
 }
@@ -104,7 +130,7 @@ constexpr inline timespec operator-(const timespec &t1, const timespec &t2)
 {
     timespec tmp = {};
     tmp.tv_sec = t1.tv_sec - (t2.tv_sec - 1);
-    tmp.tv_nsec = t1.tv_nsec - (t2.tv_nsec + 1000000000);
+    tmp.tv_nsec = t1.tv_nsec - (t2.tv_nsec + OneSecAsNsecs);
     return normalizedTimespec(tmp);
 }
 constexpr inline timespec operator*(const timespec &t1, int mul)
@@ -114,7 +140,7 @@ constexpr inline timespec operator*(const timespec &t1, int mul)
     tmp.tv_nsec = t1.tv_nsec * mul;
     return normalizedTimespec(tmp);
 }
-inline timeval timespecToTimeval(const timespec &ts)
+inline timeval timespecToTimeval(timespec ts)
 {
     timeval tv;
     tv.tv_sec = ts.tv_sec;
@@ -122,6 +148,41 @@ inline timeval timespecToTimeval(const timespec &ts)
     return tv;
 }
 
+inline timespec &operator+=(timespec &t1, std::chrono::milliseconds msecs)
+{
+    t1 += durationToTimespec(msecs);
+    return t1;
+}
+
+inline timespec &operator+=(timespec &t1, int ms)
+{
+    t1 += std::chrono::milliseconds{ms};
+    return t1;
+}
+
+inline timespec operator+(const timespec &t1, std::chrono::milliseconds msecs)
+{
+    timespec tmp = t1;
+    tmp += msecs;
+    return tmp;
+}
+
+inline timespec operator+(const timespec &t1, int ms)
+{
+    return t1 + std::chrono::milliseconds{ms};
+}
+
+inline timespec qAbsTimespec(timespec ts)
+{
+    if (ts.tv_sec < 0) {
+        ts.tv_sec = -ts.tv_sec - 1;
+        ts.tv_nsec -= OneSecAsNsecs;
+    }
+    if (ts.tv_sec == 0 && ts.tv_nsec < 0) {
+        ts.tv_nsec = -ts.tv_nsec;
+    }
+    return normalizedTimespec(ts);
+}
 
 inline void qt_ignore_sigpipe()
 {
diff --git a/src/corelib/kernel/qcore_wasm.cpp b/src/corelib/kernel/qcore_wasm.cpp
index d7135840..fb12ae50 100644
--- a/src/corelib/kernel/qcore_wasm.cpp
+++ b/src/corelib/kernel/qcore_wasm.cpp
@@ -42,4 +42,56 @@ emscripten::val QRectF::toDOMRect() const
     return emscripten::val::global("DOMRect").new_(left(), top(), width(), height());
 }
 
+/*!
+    Converts the \l {https://262.ecma-international.org/#sec-string-object}{ECMAScript string} \a
+    jsString to QString. Behavior is undefined if the provided parameter is not a string.
+
+    \since 6.6
+    \ingroup platform-type-conversions
+
+    \sa toEcmaString()
+*/
+QString QString::fromEcmaString(emscripten::val jsString)
+{
+    Q_ASSERT_X(jsString.isString(), Q_FUNC_INFO, "Passed object is not a string");
+
+    const double length = jsString["length"].as<double>();
+
+    Q_ASSERT_X((double(uint64_t(length)) != double(uint64_t(length) - 1)
+                && double(uint64_t(length)) != double(uint64_t(length) + 1))
+                       || !std::numeric_limits<double>::is_iec559,
+               Q_FUNC_INFO, "The floating-point length cannot precisely represent an integer");
+
+    constexpr int zeroTerminatorLength = 1;
+    const auto lengthOfUtf16 = (length + zeroTerminatorLength) * 2;
+
+    Q_ASSERT_X((double(uint64_t(lengthOfUtf16)) != double(uint64_t(lengthOfUtf16) - 1)
+                && double(uint64_t(lengthOfUtf16)) != double(uint64_t(lengthOfUtf16) + 1))
+                       || !std::numeric_limits<double>::is_iec559,
+               Q_FUNC_INFO,
+               "The floating-point lengthOfUtf16 cannot precisely represent an integer");
+
+    const QString result(uint64_t(length), Qt::Uninitialized);
+
+    static const emscripten::val stringToUTF16(emscripten::val::module_property("stringToUTF16"));
+    stringToUTF16(jsString, emscripten::val(quintptr(result.data())),
+                  emscripten::val(lengthOfUtf16));
+    return result;
+}
+
+/*!
+    Converts this object to an
+    \l {https://262.ecma-international.org/#sec-string-object}{ECMAScript string}.
+
+    \since 6.6
+    \ingroup platform-type-conversions
+
+    \sa fromEcmaString()
+*/
+emscripten::val QString::toEcmaString() const
+{
+    static const emscripten::val UTF16ToString(emscripten::val::module_property("UTF16ToString"));
+    return UTF16ToString(emscripten::val(quintptr(utf16())));
+}
+
 QT_END_NAMESPACE
diff --git a/src/corelib/kernel/qcoreapplication.cpp b/src/corelib/kernel/qcoreapplication.cpp
index 85d98557..cf773a23 100644
--- a/src/corelib/kernel/qcoreapplication.cpp
+++ b/src/corelib/kernel/qcoreapplication.cpp
@@ -67,7 +67,7 @@
 #include <QtCore/qjniobject.h>
 #endif
 
-#ifdef Q_OS_MAC
+#ifdef Q_OS_DARWIN
 #  include "qcore_mac_p.h"
 #endif
 
@@ -123,7 +123,7 @@ Q_TRACE_POINT(qtcore, QCoreApplication_sendSpontaneousEvent, QObject *receiver,
 Q_TRACE_POINT(qtcore, QCoreApplication_notify_entry, QObject *receiver, QEvent *event, QEvent::Type type);
 Q_TRACE_POINT(qtcore, QCoreApplication_notify_exit, bool consumed, bool filtered);
 
-#if defined(Q_OS_WIN) || defined(Q_OS_MAC)
+#if defined(Q_OS_WIN) || defined(Q_OS_DARWIN)
 extern QString qAppFileName();
 #endif
 
@@ -2452,7 +2452,7 @@ QString QCoreApplication::applicationFilePath()
         if (procName != d->argv[0]) {
             // clear the cache if the procname changes, so we reprocess it.
             QCoreApplicationPrivate::clearApplicationFilePath();
-            procName = QByteArray(d->argv[0]);
+            procName.assign(d->argv[0]);
         }
     }
 
diff --git a/src/corelib/kernel/qcoreapplication.h b/src/corelib/kernel/qcoreapplication.h
index 82580ceb..dbded9e0 100644
--- a/src/corelib/kernel/qcoreapplication.h
+++ b/src/corelib/kernel/qcoreapplication.h
@@ -32,6 +32,7 @@ class QTranslator;
 class QPostEventList;
 class QAbstractEventDispatcher;
 class QAbstractNativeEventFilter;
+class QEventLoopLocker;
 
 #if QT_CONFIG(permissions) || defined(Q_QDOC)
 class QPermission;
@@ -58,6 +59,11 @@ class Q_CORE_EXPORT QCoreApplication
 #endif
 
     Q_DECLARE_PRIVATE(QCoreApplication)
+    friend class QEventLoopLocker;
+#if QT_CONFIG(permissions)
+    using RequestPermissionPrototype = void(*)(QPermission);
+#endif
+
 public:
     enum { ApplicationFlags = QT_VERSION
     };
@@ -87,7 +93,7 @@ public:
     static void setSetuidAllowed(bool allow);
     static bool isSetuidAllowed();
 
-    static QCoreApplication *instance() { return self; }
+    static QCoreApplication *instance() noexcept { return self; }
 
 #ifndef QT_NO_QOBJECT
     static int exec();
@@ -115,67 +121,40 @@ public:
     Qt::PermissionStatus checkPermission(const QPermission &permission);
 
 # ifdef Q_QDOC
-    template <typename Functor>
-    void requestPermission(const QPermission &permission, Functor functor);
     template <typename Functor>
     void requestPermission(const QPermission &permission, const QObject *context, Functor functor);
 # else
-    template <typename Slot> // requestPermission to a QObject slot
+    // requestPermission with context or receiver object; need to require here that receiver is the
+    // right type to avoid ambiguity with the private implementation function.
+    template <typename Functor,
+              std::enable_if_t<
+                    QtPrivate::AreFunctionsCompatible<RequestPermissionPrototype, Functor>::value,
+                    bool> = true>
     void requestPermission(const QPermission &permission,
-        const typename QtPrivate::FunctionPointer<Slot>::Object *receiver, Slot slot)
+                           const typename QtPrivate::ContextTypeForFunctor<Functor>::ContextType *receiver,
+                           Functor &&func)
     {
-        using CallbackSignature = QtPrivate::FunctionPointer<void (*)(QPermission)>;
-        using SlotSignature = QtPrivate::FunctionPointer<Slot>;
-
-        static_assert(int(SlotSignature::ArgumentCount) <= int(CallbackSignature::ArgumentCount),
-            "Slot requires more arguments than what can be provided.");
-        static_assert((QtPrivate::CheckCompatibleArguments<typename CallbackSignature::Arguments, typename SlotSignature::Arguments>::value),
-            "Slot arguments are not compatible (must be QPermission)");
-
-        auto slotObj = new QtPrivate::QSlotObject<Slot, typename SlotSignature::Arguments, void>(slot);
-        requestPermission(permission, slotObj, receiver);
-    }
-
-    // requestPermission to a functor or function pointer (with context)
-    template <typename Func, std::enable_if_t<
-        !QtPrivate::FunctionPointer<Func>::IsPointerToMemberFunction
-        && !std::is_same<const char *, Func>::value, bool> = true>
-    void requestPermission(const QPermission &permission, const QObject *context, Func func)
-    {
-        using CallbackSignature = QtPrivate::FunctionPointer<void (*)(QPermission)>;
-        constexpr int MatchingArgumentCount = QtPrivate::ComputeFunctorArgumentCount<
-            Func, CallbackSignature::Arguments>::Value;
-
-        static_assert(MatchingArgumentCount == 0
-            || MatchingArgumentCount == CallbackSignature::ArgumentCount,
-           "Functor arguments are not compatible (must be QPermission)");
-
-        QtPrivate::QSlotObjectBase *slotObj = nullptr;
-        if constexpr (MatchingArgumentCount == CallbackSignature::ArgumentCount) {
-            slotObj = new QtPrivate::QFunctorSlotObject<Func, 1,
-                typename CallbackSignature::Arguments, void>(std::move(func));
-        } else {
-            slotObj = new QtPrivate::QFunctorSlotObject<Func, 0,
-                typename QtPrivate::List_Left<void, 0>::Value, void>(std::move(func));
-        }
-
-        requestPermission(permission, slotObj, context);
+        requestPermission(permission,
+                          QtPrivate::makeCallableObject<RequestPermissionPrototype>(std::forward<Functor>(func)),
+                          receiver);
     }
+# endif // Q_QDOC
 
     // requestPermission to a functor or function pointer (without context)
-    template <typename Func, std::enable_if_t<
-        !QtPrivate::FunctionPointer<Func>::IsPointerToMemberFunction
-        && !std::is_same<const char *, Func>::value, bool> = true>
-    void requestPermission(const QPermission &permission, Func func)
+    template <typename Functor,
+              std::enable_if_t<
+                    QtPrivate::AreFunctionsCompatible<RequestPermissionPrototype, Functor>::value,
+                    bool> = true>
+    void requestPermission(const QPermission &permission, Functor &&func)
     {
-        requestPermission(permission, nullptr, std::move(func));
+        requestPermission(permission, nullptr, std::forward<Functor>(func));
     }
 
 private:
+    // ### Qt 7: rename to requestPermissionImpl to avoid ambiguity
     void requestPermission(const QPermission &permission,
         QtPrivate::QSlotObjectBase *slotObj, const QObject *context);
 public:
-# endif // Q_QDOC
 
 #endif // QT_CONFIG(permission)
 
diff --git a/src/corelib/kernel/qcoreevent.cpp b/src/corelib/kernel/qcoreevent.cpp
index 0f4af063..927a8b6a 100644
--- a/src/corelib/kernel/qcoreevent.cpp
+++ b/src/corelib/kernel/qcoreevent.cpp
@@ -85,6 +85,8 @@ Q_TRACE_POINT(qtcore, QEvent_dtor, QEvent *event, QEvent::Type type);
     \value ContextMenu                      Context popup menu (QContextMenuEvent).
     \value CursorChange                     The widget's cursor has changed.
     \value DeferredDelete                   The object will be deleted after it has cleaned up (QDeferredDeleteEvent)
+    \value [since 6.6] DevicePixelRatioChange
+                                            The devicePixelRatio has changed for this widget's or window's underlying backing store.
     \value DragEnter                        The cursor enters a widget during a drag and drop operation (QDragEnterEvent).
     \value DragLeave                        The cursor leaves a widget during a drag and drop operation (QDragLeaveEvent).
     \value DragMove                         A drag and drop operation is in progress (QDragMoveEvent).
diff --git a/src/corelib/kernel/qcoreevent.h b/src/corelib/kernel/qcoreevent.h
index f1f3e926..4b2915a4 100644
--- a/src/corelib/kernel/qcoreevent.h
+++ b/src/corelib/kernel/qcoreevent.h
@@ -284,6 +284,8 @@ public:
         // GraphicsSceneLeave = 220,
         WindowAboutToChangeInternal = 221,      // internal for QQuickWidget and texture-based widgets
 
+        DevicePixelRatioChange = 222,
+
         // 512 reserved for Qt Jambi's MetaCall event
         // 513 reserved for Qt Jambi's DeleteOnMainThread event
 
diff --git a/src/corelib/kernel/qdeadlinetimer.cpp b/src/corelib/kernel/qdeadlinetimer.cpp
index a5d16ddf..731ff4e9 100644
--- a/src/corelib/kernel/qdeadlinetimer.cpp
+++ b/src/corelib/kernel/qdeadlinetimer.cpp
@@ -2,297 +2,46 @@
 // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
 
 #include "qdeadlinetimer.h"
-#include "qdeadlinetimer_p.h"
 #include "private/qnumeric_p.h"
 
 QT_BEGIN_NAMESPACE
 
 QT_IMPL_METATYPE_EXTERN(QDeadlineTimer)
 
+using namespace std::chrono;
+
 namespace {
-    class TimeReference
-    {
-        enum : unsigned {
-            umega = 1000 * 1000,
-            ugiga = umega * 1000
-        };
-
-        enum : qint64 {
-            kilo = 1000,
-            mega = kilo * 1000,
-            giga = mega * 1000
-        };
-
-    public:
-        enum RoundingStrategy {
-            RoundDown,
-            RoundUp,
-            RoundDefault = RoundDown
-        };
-
-        static constexpr qint64 Min = std::numeric_limits<qint64>::min();
-        static constexpr qint64 Max = std::numeric_limits<qint64>::max();
-
-        inline TimeReference(qint64 = 0, unsigned = 0);
-        inline void updateTimer(qint64 &, unsigned &);
-
-        inline bool addNanoseconds(qint64);
-        inline bool addMilliseconds(qint64);
-        bool addSecsAndNSecs(qint64, qint64);
-
-        inline bool subtract(const qint64, const unsigned);
-
-        inline bool toMilliseconds(qint64 *, RoundingStrategy = RoundDefault) const;
-        inline bool toNanoseconds(qint64 *) const;
-
-        inline void saturate(bool toMax);
-        static bool sign(qint64, qint64);
-
-    private:
-        bool adjust(const qint64, const unsigned, qint64 = 0);
-
-    private:
-        qint64 secs;
-        unsigned nsecs;
-    };
+struct TimeReference : std::numeric_limits<qint64>
+{
+    static constexpr qint64 Min = min();
+    static constexpr qint64 Max = max();
+};
 }
 
-inline TimeReference::TimeReference(qint64 t1, unsigned t2)
-    : secs(t1), nsecs(t2)
+template <typename Duration1, typename... Durations>
+static qint64 add_saturate(qint64 t1, Duration1 dur, Durations... extra)
 {
-}
+    qint64 v = dur.count();
+    qint64 saturated = std::numeric_limits<qint64>::max();
+    if (v < 0)
+        saturated = std::numeric_limits<qint64>::min();
 
-inline void TimeReference::updateTimer(qint64 &t1, unsigned &t2)
-{
-    t1 = secs;
-    t2 = nsecs;
-}
+    // convert to nanoseconds with saturation
+    using Ratio = std::ratio_divide<typename Duration1::period, nanoseconds::period>;
+    static_assert(Ratio::den == 1, "sub-multiples of nanosecond are not supported");
+    if (qMulOverflow<Ratio::num>(v, &v))
+        return saturated;
 
-inline void TimeReference::saturate(bool toMax)
-{
-    secs = toMax ? Max : Min;
-}
-
-/*!
- * \internal
- *
- * Determines the sign of a (seconds, nanoseconds) pair
- * for differentiating overflow from underflow. It doesn't
- * deal with equality as it shouldn't ever be called in that case.
- *
- * Returns true if the pair represents a positive time offset
- * false otherwise.
- */
-bool TimeReference::sign(qint64 secs, qint64 nsecs)
-{
-    if (secs > 0) {
-        if (nsecs > 0)
-            return true;
-    } else {
-        if (nsecs < 0)
-            return false;
+    qint64 r;
+    if (qAddOverflow(t1, v, &r))
+        return saturated;
+    if constexpr (sizeof...(Durations)) {
+        // chain more additions
+        return add_saturate(r, extra...);
     }
-
-    // They are different in sign
-    secs += nsecs / giga;
-    if (secs > 0)
-        return true;
-    else if (secs < 0)
-        return false;
-
-    // We should never get over|underflow out of
-    // the case: secs * giga == -nsecs
-    // So the sign of nsecs is the deciding factor
-    Q_ASSERT(nsecs % giga != 0);
-    return nsecs > 0;
+    return r;
 }
 
-#if defined(Q_OS_UNIX) && !defined(Q_OS_DARWIN)
-inline bool TimeReference::addNanoseconds(qint64 arg)
-{
-    return addSecsAndNSecs(arg / giga, arg % giga);
-}
-
-inline bool TimeReference::addMilliseconds(qint64 arg)
-{
-    return addSecsAndNSecs(arg / kilo, (arg % kilo) * mega);
-}
-
-/*!
- * \internal
- *
- * Adds \a t1 addSecs seconds and \a addNSecs nanoseconds to the
- * time reference. The arguments are normalized to seconds (qint64)
- * and nanoseconds (unsigned) before the actual calculation is
- * delegated to adjust(). If the nanoseconds are negative the
- * owed second used for the normalization is passed on to adjust()
- * as third argument.
- *
- * Returns true if operation was successful, false on over|underflow
- */
-bool TimeReference::addSecsAndNSecs(qint64 addSecs, qint64 addNSecs)
-{
-    // Normalize the arguments
-    if (qAbs(addNSecs) >= giga) {
-        if (add_overflow<qint64>(addSecs, addNSecs / giga, &addSecs))
-            return false;
-
-        addNSecs %= giga;
-    }
-
-    if (addNSecs < 0)
-        return adjust(addSecs, ugiga - unsigned(-addNSecs), -1);
-
-    return adjust(addSecs, unsigned(addNSecs));
-}
-
-/*!
- * \internal
- *
- * Adds \a t1 seconds and \a t2 nanoseconds to the internal members.
- * Takes into account the additional \a carrySeconds we may owe or need to carry over.
- *
- * Returns true if operation was successful, false on over|underflow
- */
-bool TimeReference::adjust(const qint64 t1, const unsigned t2, qint64 carrySeconds)
-{
-    static_assert(QDeadlineTimerNanosecondsInT2);
-    nsecs += t2;
-    if (nsecs >= ugiga) {
-        nsecs -= ugiga;
-        carrySeconds++;
-    }
-
-    // We don't worry about the order of addition, because the result returned by
-    // callers of this function is unchanged regardless of us over|underflowing.
-    // If we do, we do so by no more than a second, thus saturating the timer to
-    // Forever has the same effect as if we did the arithmetic exactly and salvaged
-    // the overflow.
-    return !add_overflow<qint64>(secs, t1, &secs) && !add_overflow<qint64>(secs, carrySeconds, &secs);
-}
-
-/*!
- * \internal
- *
- * Subtracts \a t1 seconds and \a t2 nanoseconds from the time reference.
- * When normalizing the nanoseconds to a positive number the owed seconds is
- * passed as third argument to adjust() as the seconds may over|underflow
- * if we do the calculation directly. There is little sense to check the
- * seconds for over|underflow here in case we are going to need to carry
- * over a second _after_ we add the nanoseconds.
- *
- * Returns true if operation was successful, false on over|underflow
- */
-inline bool TimeReference::subtract(const qint64 t1, const unsigned t2)
-{
-    Q_ASSERT(t2 < ugiga);
-    return adjust(-t1, ugiga - t2, -1);
-}
-
-/*!
- * \internal
- *
- * Converts the time reference to milliseconds.
- *
- * Checks are done without making use of mul_overflow because it may
- * not be implemented on some 32bit platforms.
- *
- * Returns true if operation was successful, false on over|underflow
- */
-inline bool TimeReference::toMilliseconds(qint64 *result, RoundingStrategy rounding) const
-{
-    static constexpr qint64 maxSeconds = Max / kilo;
-    static constexpr qint64 minSeconds = Min / kilo;
-    if (secs > maxSeconds || secs < minSeconds)
-        return false;
-
-    unsigned ns = rounding == RoundDown ? nsecs : nsecs + umega - 1;
-
-    return !add_overflow<qint64>(secs * kilo, ns / umega, result);
-}
-
-/*!
- * \internal
- *
- * Converts the time reference to nanoseconds.
- *
- * Checks are done without making use of mul_overflow because it may
- * not be implemented on some 32bit platforms.
- *
- * Returns true if operation was successful, false on over|underflow
- */
-inline bool TimeReference::toNanoseconds(qint64 *result) const
-{
-    static constexpr qint64 maxSeconds = Max / giga;
-    static constexpr qint64 minSeconds = Min / giga;
-    if (secs > maxSeconds || secs < minSeconds)
-        return false;
-
-    return !add_overflow<qint64>(secs * giga, nsecs, result);
-}
-#else
-inline bool TimeReference::addNanoseconds(qint64 arg)
-{
-    return adjust(arg, 0);
-}
-
-inline bool TimeReference::addMilliseconds(qint64 arg)
-{
-    static constexpr qint64 maxMilliseconds = Max / mega;
-    if (qAbs(arg) > maxMilliseconds)
-        return false;
-
-    return addNanoseconds(arg * mega);
-}
-
-inline bool TimeReference::addSecsAndNSecs(qint64 addSecs, qint64 addNSecs)
-{
-    static constexpr qint64 maxSeconds = Max / giga;
-    static constexpr qint64 minSeconds = Min / giga;
-    if (addSecs > maxSeconds || addSecs < minSeconds || add_overflow<qint64>(addSecs * giga, addNSecs, &addNSecs))
-        return false;
-
-    return addNanoseconds(addNSecs);
-}
-
-inline bool TimeReference::adjust(const qint64 t1, const unsigned t2, qint64 carrySeconds)
-{
-    static_assert(!QDeadlineTimerNanosecondsInT2);
-    Q_UNUSED(t2);
-    Q_UNUSED(carrySeconds);
-
-    return !add_overflow<qint64>(secs, t1, &secs);
-}
-
-inline bool TimeReference::subtract(const qint64 t1, const unsigned t2)
-{
-    Q_UNUSED(t2);
-
-    return addNanoseconds(-t1);
-}
-
-inline bool TimeReference::toMilliseconds(qint64 *result, RoundingStrategy rounding) const
-{
-    // Force QDeadlineTimer to treat the border cases as
-    // over|underflow and saturate the results returned to the user.
-    // We don't want to get valid milliseconds out of saturated timers.
-    if (secs == Max || secs == Min)
-        return false;
-
-    *result = secs / mega;
-    if (rounding == RoundUp && secs > *result * mega)
-        (*result)++;
-
-    return true;
-}
-
-inline bool TimeReference::toNanoseconds(qint64 *result) const
-{
-    *result = secs;
-    return true;
-}
-#endif
-
 /*!
     \class QDeadlineTimer
     \inmodule QtCore
@@ -382,10 +131,12 @@ inline bool TimeReference::toNanoseconds(qint64 *result) const
 */
 
 /*!
+    \fn QDeadlineTimer::QDeadlineTimer()
     \fn QDeadlineTimer::QDeadlineTimer(Qt::TimerType timerType)
 
     Constructs an expired QDeadlineTimer object. For this object,
-    remainingTime() will return 0.
+    remainingTime() will return 0. If \a timerType is not set, then the object
+    will use the \l{Qt::CoarseTimer}{coarse} \l{QDeadlineTimer#Timer types}{timer type}.
 
     The timer type \a timerType may be ignored, since the timer is already
     expired. Similarly, for optimization purposes, this function will not
@@ -415,7 +166,7 @@ inline bool TimeReference::toNanoseconds(qint64 *result) const
     from the moment of the creation of this object, if msecs is positive. If \a
     msecs is zero, this QDeadlineTimer will be marked as expired, causing
     remainingTime() to return zero and deadline() to return an indeterminate
-    time point in the past. If \a msecs is -1, the timer will be set to never
+    time point in the past. If \a msecs is negative, the timer will be set to never
     expire, causing remainingTime() to return -1 and deadline() to return the
     maximum value.
 
@@ -428,6 +179,9 @@ inline bool TimeReference::toNanoseconds(qint64 *result) const
     functionality is required, use QDeadlineTimer::current() and add time to
     it.
 
+    \note Prior to Qt 6.6, the only value that caused the timer to never expire
+    was -1.
+
     \sa hasExpired(), isForever(), remainingTime(), setRemainingTime()
 */
 QDeadlineTimer::QDeadlineTimer(qint64 msecs, Qt::TimerType type) noexcept
@@ -494,51 +248,70 @@ QDeadlineTimer::QDeadlineTimer(qint64 msecs, Qt::TimerType type) noexcept
 /*!
     Sets the remaining time for this QDeadlineTimer object to \a msecs
     milliseconds from now, if \a msecs has a positive value. If \a msecs is
-    zero, this QDeadlineTimer object will be marked as expired, whereas a value
-    of -1 will set it to never expire.
+    zero, this QDeadlineTimer object will be marked as expired, whereas a
+    negative value will set it to never expire.
+
+    For optimization purposes, if \a msecs is zero, this function may skip
+    obtaining the current time and may instead use a value known to be in the
+    past. If that happens, deadline() may return an unexpected value and this
+    object cannot be used in calculation of how long it is overdue. If that
+    functionality is required, use QDeadlineTimer::current() and add time to
+    it.
 
     The timer type for this QDeadlineTimer object will be set to the specified \a timerType.
 
+    \note Prior to Qt 6.6, the only value that caused the timer to never expire
+    was -1.
+
     \sa setPreciseRemainingTime(), hasExpired(), isForever(), remainingTime()
 */
 void QDeadlineTimer::setRemainingTime(qint64 msecs, Qt::TimerType timerType) noexcept
 {
-    if (msecs == -1) {
+    if (msecs < 0) {
         *this = QDeadlineTimer(Forever, timerType);
-        return;
+    } else if (msecs == 0) {
+        *this = QDeadlineTimer(timerType);
+        t1 = std::numeric_limits<qint64>::min();
+    } else {
+        *this = current(timerType);
+        milliseconds ms(msecs);
+        t1 = add_saturate(t1, ms);
     }
-
-    *this = current(timerType);
-
-    TimeReference ref(t1, t2);
-    if (!ref.addMilliseconds(msecs))
-        ref.saturate(msecs > 0);
-    ref.updateTimer(t1, t2);
 }
 
 /*!
     Sets the remaining time for this QDeadlineTimer object to \a secs seconds
     plus \a nsecs nanoseconds from now, if \a secs has a positive value. If \a
-    secs is -1, this QDeadlineTimer will be set it to never expire. If both
-    parameters are zero, this QDeadlineTimer will be marked as expired.
+    secs is negative, this QDeadlineTimer will be set it to never expire (this
+    behavior does not apply to \a nsecs). If both parameters are zero, this
+    QDeadlineTimer will be marked as expired.
+
+    For optimization purposes, if both \a secs and \a nsecs are zero, this
+    function may skip obtaining the current time and may instead use a value
+    known to be in the past. If that happens, deadline() may return an
+    unexpected value and this object cannot be used in calculation of how long
+    it is overdue. If that functionality is required, use
+    QDeadlineTimer::current() and add time to it.
 
     The timer type for this QDeadlineTimer object will be set to the specified
     \a timerType.
 
+    \note Prior to Qt 6.6, the only condition that caused the timer to never
+    expire was when \a secs was -1.
+
     \sa setRemainingTime(), hasExpired(), isForever(), remainingTime()
 */
 void QDeadlineTimer::setPreciseRemainingTime(qint64 secs, qint64 nsecs, Qt::TimerType timerType) noexcept
 {
-    if (secs == -1) {
+    if (secs < 0) {
         *this = QDeadlineTimer(Forever, timerType);
-        return;
+    } else if (secs == 0 && nsecs == 0) {
+        *this = QDeadlineTimer(timerType);
+        t1 = std::numeric_limits<qint64>::min();
+    } else {
+        *this = current(timerType);
+        t1 = add_saturate(t1, seconds{secs}, nanoseconds{nsecs});
     }
-
-    *this = current(timerType);
-    TimeReference ref(t1, t2);
-    if (!ref.addSecsAndNSecs(secs, nsecs))
-        ref.saturate(TimeReference::sign(secs, nsecs));
-    ref.updateTimer(t1, t2);
 }
 
 /*!
@@ -588,6 +361,8 @@ bool QDeadlineTimer::hasExpired() const noexcept
 {
     if (isForever())
         return false;
+    if (t1 == std::numeric_limits<qint64>::min())
+        return true;
     return *this <= current(timerType());
 }
 
@@ -636,19 +411,8 @@ qint64 QDeadlineTimer::remainingTime() const noexcept
     if (isForever())
         return -1;
 
-    QDeadlineTimer now = current(timerType());
-    TimeReference ref(t1, t2);
-
-    qint64 msecs;
-    if (!ref.subtract(now.t1, now.t2))
-        return 0;   // We can only underflow here
-
-    // If we fail the conversion, t1 < now.t1 means we underflowed,
-    // thus the deadline had long expired
-    if (!ref.toMilliseconds(&msecs, TimeReference::RoundUp))
-        return t1 < now.t1 ? 0 : -1;
-
-    return msecs < 0 ? 0 : msecs;
+    nanoseconds nsecs(remainingTimeNSecs());
+    return ceil<milliseconds>(nsecs).count();
 }
 
 /*!
@@ -670,23 +434,19 @@ qint64 QDeadlineTimer::remainingTimeNSecs() const noexcept
 /*!
     \internal
     Same as remainingTimeNSecs, but may return negative remaining times. Does
-    not deal with Forever. In case of underflow the result is saturated to
-    the minimum possible value, on overflow  - the maximum possible value.
+    not deal with Forever. In case of underflow, which is only possible if the
+    timer has expired, an arbitrary negative value is returned.
 */
 qint64 QDeadlineTimer::rawRemainingTimeNSecs() const noexcept
 {
+    if (t1 == std::numeric_limits<qint64>::min())
+        return t1;          // we'd saturate to this anyway
+
     QDeadlineTimer now = current(timerType());
-    TimeReference ref(t1, t2);
-
-    qint64 nsecs;
-    if (!ref.subtract(now.t1, now.t2))
-        return TimeReference::Min;  // We can only underflow here
-
-    // If we fail the conversion, t1 < now.t1 means we underflowed,
-    // thus the deadline had long expired
-    if (!ref.toNanoseconds(&nsecs))
-        return t1 < now.t1 ? TimeReference::Min : TimeReference::Max;
-    return nsecs;
+    qint64 r;
+    if (qSubOverflow(t1, now.t1, &r))
+        return -1;      // any negative number is fine
+    return r;
 }
 
 /*!
@@ -713,12 +473,11 @@ qint64 QDeadlineTimer::deadline() const noexcept
 {
     if (isForever())
         return TimeReference::Max;
+    if (t1 == TimeReference::Min)
+        return t1;
 
-    qint64 result;
-    if (!TimeReference(t1, t2).toMilliseconds(&result))
-        return t1 < 0 ? TimeReference::Min : TimeReference::Max;
-
-    return result;
+    nanoseconds ns(t1);
+    return duration_cast<milliseconds>(ns).count();
 }
 
 /*!
@@ -747,11 +506,7 @@ qint64 QDeadlineTimer::deadlineNSecs() const noexcept
     if (isForever())
         return TimeReference::Max;
 
-    qint64 result;
-    if (!TimeReference(t1, t2).toNanoseconds(&result))
-        return t1 < 0 ? TimeReference::Min : TimeReference::Max;
-
-    return result;
+    return t1;
 }
 
 /*!
@@ -775,11 +530,7 @@ void QDeadlineTimer::setDeadline(qint64 msecs, Qt::TimerType timerType) noexcept
     }
 
     type = timerType;
-
-    TimeReference ref;
-    if (!ref.addMilliseconds(msecs))
-        ref.saturate(msecs > 0);
-    ref.updateTimer(t1, t2);
+    t1 = add_saturate(0, milliseconds{msecs});
 }
 
 /*!
@@ -797,13 +548,7 @@ void QDeadlineTimer::setDeadline(qint64 msecs, Qt::TimerType timerType) noexcept
 void QDeadlineTimer::setPreciseDeadline(qint64 secs, qint64 nsecs, Qt::TimerType timerType) noexcept
 {
     type = timerType;
-
-    // We don't pass the seconds to the constructor, because we don't know
-    // at this point if t1 holds the seconds or nanoseconds; it's platform specific.
-    TimeReference ref;
-    if (!ref.addSecsAndNSecs(secs, nsecs))
-        ref.saturate(TimeReference::sign(secs, nsecs));
-    ref.updateTimer(t1, t2);
+    t1 = add_saturate(0, seconds{secs}, nanoseconds{nsecs});
 }
 
 /*!
@@ -819,11 +564,7 @@ QDeadlineTimer QDeadlineTimer::addNSecs(QDeadlineTimer dt, qint64 nsecs) noexcep
     if (dt.isForever())
         return dt;
 
-    TimeReference ref(dt.t1, dt.t2);
-    if (!ref.addNanoseconds(nsecs))
-        ref.saturate(nsecs > 0);
-    ref.updateTimer(dt.t1, dt.t2);
-
+    dt.t1 = add_saturate(dt.t1, nanoseconds{nsecs});
     return dt;
 }
 
@@ -836,6 +577,17 @@ QDeadlineTimer QDeadlineTimer::addNSecs(QDeadlineTimer dt, qint64 nsecs) noexcep
 
     The QDeadlineTimer object will be constructed with the specified \a timerType.
 */
+QDeadlineTimer QDeadlineTimer::current(Qt::TimerType timerType) noexcept
+{
+    // ensure we get nanoseconds; this will work so long as steady_clock's
+    // time_point isn't of finer resolution (picoseconds)
+    std::chrono::nanoseconds ns = std::chrono::steady_clock::now().time_since_epoch();
+
+    QDeadlineTimer result;
+    result.t1 = ns.count();
+    result.type = timerType;
+    return result;
+}
 
 /*!
     \fn bool QDeadlineTimer::operator==(QDeadlineTimer d1, QDeadlineTimer d2)
@@ -930,11 +682,7 @@ QDeadlineTimer operator+(QDeadlineTimer dt, qint64 msecs)
     if (dt.isForever())
         return dt;
 
-    TimeReference ref(dt.t1, dt.t2);
-    if (!ref.addMilliseconds(msecs))
-        ref.saturate(msecs > 0);
-    ref.updateTimer(dt.t1, dt.t2);
-
+    dt.t1 = add_saturate(dt.t1, milliseconds{msecs});
     return dt;
 }
 
@@ -1005,6 +753,4 @@ QDeadlineTimer operator+(QDeadlineTimer dt, qint64 msecs)
   \internal
 */
 
-// the rest of the functions are in qelapsedtimer_xxx.cpp
-
 QT_END_NAMESPACE
diff --git a/src/corelib/kernel/qdeadlinetimer.h b/src/corelib/kernel/qdeadlinetimer.h
index 253e98de..57c771de 100644
--- a/src/corelib/kernel/qdeadlinetimer.h
+++ b/src/corelib/kernel/qdeadlinetimer.h
@@ -23,16 +23,18 @@ QT_BEGIN_NAMESPACE
 class Q_CORE_EXPORT QDeadlineTimer
 {
 public:
-    enum ForeverConstant { Forever };
+    enum class ForeverConstant { Forever };
+    static constexpr ForeverConstant Forever = ForeverConstant::Forever;
 
-    constexpr QDeadlineTimer(Qt::TimerType type_ = Qt::CoarseTimer) noexcept
+    constexpr QDeadlineTimer() noexcept = default;
+    constexpr explicit QDeadlineTimer(Qt::TimerType type_) noexcept
         : type(type_) {}
     constexpr QDeadlineTimer(ForeverConstant, Qt::TimerType type_ = Qt::CoarseTimer) noexcept
         : t1((std::numeric_limits<qint64>::max)()), type(type_) {}
     explicit QDeadlineTimer(qint64 msecs, Qt::TimerType type = Qt::CoarseTimer) noexcept;
 
     void swap(QDeadlineTimer &other) noexcept
-    { std::swap(t1, other.t1); std::swap(t2, other.t2); std::swap(type, other.type); }
+    { std::swap(t1, other.t1); std::swap(type, other.type); }
 
     constexpr bool isForever() const noexcept
     { return t1 == (std::numeric_limits<qint64>::max)(); }
@@ -58,11 +60,11 @@ public:
     static QDeadlineTimer current(Qt::TimerType timerType = Qt::CoarseTimer) noexcept;
 
     friend bool operator==(QDeadlineTimer d1, QDeadlineTimer d2) noexcept
-    { return d1.t1 == d2.t1 && d1.t2 == d2.t2; }
+    { return d1.t1 == d2.t1; }
     friend bool operator!=(QDeadlineTimer d1, QDeadlineTimer d2) noexcept
     { return !(d1 == d2); }
     friend bool operator<(QDeadlineTimer d1, QDeadlineTimer d2) noexcept
-    { return d1.t1 < d2.t1 || (d1.t1 == d2.t1 && d1.t2 < d2.t2); }
+    { return d1.t1 < d2.t1; }
     friend bool operator<=(QDeadlineTimer d1, QDeadlineTimer d2) noexcept
     { return d1 == d2 || d1 < d2; }
     friend bool operator>(QDeadlineTimer d1, QDeadlineTimer d2) noexcept
@@ -91,16 +93,11 @@ public:
     { setDeadline(deadline_); return *this; }
 
     template <class Clock, class Duration = typename Clock::duration>
-    void setDeadline(std::chrono::time_point<Clock, Duration> deadline_,
-                     Qt::TimerType type_ = Qt::CoarseTimer)
-    { setRemainingTime(deadline_ == deadline_.max() ? Duration::max() : deadline_ - Clock::now(), type_); }
+    void setDeadline(std::chrono::time_point<Clock, Duration> tp,
+                     Qt::TimerType type_ = Qt::CoarseTimer);
 
     template <class Clock, class Duration = typename Clock::duration>
-    std::chrono::time_point<Clock, Duration> deadline() const
-    {
-        auto val = std::chrono::nanoseconds(rawRemainingTimeNSecs()) + Clock::now();
-        return std::chrono::time_point_cast<Duration>(val);
-    }
+    std::chrono::time_point<Clock, Duration> deadline() const;
 
     template <class Rep, class Period>
     QDeadlineTimer(std::chrono::duration<Rep, Period> remaining, Qt::TimerType type_ = Qt::CoarseTimer)
@@ -114,10 +111,11 @@ public:
     template <class Rep, class Period>
     void setRemainingTime(std::chrono::duration<Rep, Period> remaining, Qt::TimerType type_ = Qt::CoarseTimer)
     {
+        using namespace std::chrono;
         if (remaining == remaining.max())
             *this = QDeadlineTimer(Forever, type_);
         else
-            setPreciseRemainingTime(0, std::chrono::nanoseconds(remaining).count(), type_);
+            setPreciseRemainingTime(0, ceil<nanoseconds>(remaining).count(), type_);
     }
 
     std::chrono::nanoseconds remainingTimeAsDuration() const noexcept
@@ -142,43 +140,42 @@ public:
 
 private:
     qint64 t1 = 0;
+#if QT_VERSION < QT_VERSION_CHECK(7, 0, 0)
     unsigned t2 = 0;
-    unsigned type;
+#endif
+    unsigned type = Qt::CoarseTimer;
 
     qint64 rawRemainingTimeNSecs() const noexcept;
-
-public:
-    // This is not a public function, it's here only for Qt's internal convenience...
-    QPair<qint64, unsigned> _q_data() const { return qMakePair(t1, t2); }
 };
 
-#if defined(Q_OS_DARWIN) || defined(Q_OS_LINUX) || (defined(Q_CC_MSVC) && Q_CC_MSVC >= 1900)
-// We know for these OS/compilers that the std::chrono::steady_clock uses the same
-// reference time as QDeadlineTimer
-
-template <> inline std::chrono::steady_clock::time_point
-QDeadlineTimer::deadline<std::chrono::steady_clock, std::chrono::steady_clock::duration>() const
+template<class Clock, class Duration>
+std::chrono::time_point<Clock, Duration> QDeadlineTimer::deadline() const
 {
-    return std::chrono::steady_clock::time_point(std::chrono::nanoseconds(deadlineNSecs()));
+    using namespace std::chrono;
+    if constexpr (std::is_same_v<Clock, steady_clock>) {
+        auto val = duration_cast<Duration>(nanoseconds(deadlineNSecs()));
+        return time_point<Clock, Duration>(val);
+    } else {
+        auto val = nanoseconds(rawRemainingTimeNSecs()) + Clock::now();
+        return time_point_cast<Duration>(val);
+    }
 }
 
-template <> inline void
-QDeadlineTimer::setDeadline<std::chrono::steady_clock, std::chrono::steady_clock::duration>(std::chrono::steady_clock::time_point tp, Qt::TimerType type_)
+template<class Clock, class Duration>
+void QDeadlineTimer::setDeadline(std::chrono::time_point<Clock, Duration> tp, Qt::TimerType type_)
 {
     using namespace std::chrono;
     if (tp == tp.max()) {
         *this = Forever;
         type = type_;
-    } else if (type_ != Qt::PreciseTimer) {
-        // if we aren't using PreciseTimer, then we need to convert
-        setPreciseRemainingTime(0, duration_cast<nanoseconds>(tp - steady_clock::now()).count(), type_);
-    } else {
+    } else if constexpr (std::is_same_v<Clock, steady_clock>) {
         setPreciseDeadline(0,
                            duration_cast<nanoseconds>(tp.time_since_epoch()).count(),
                            type_);
+    } else {
+        setPreciseRemainingTime(0, duration_cast<nanoseconds>(tp - Clock::now()).count(), type_);
     }
 }
-#endif
 
 Q_DECLARE_SHARED(QDeadlineTimer)
 
diff --git a/src/corelib/kernel/qdeadlinetimer_p.h b/src/corelib/kernel/qdeadlinetimer_p.h
deleted file mode 100644
index 41054435..00000000
--- a/src/corelib/kernel/qdeadlinetimer_p.h
+++ /dev/null
@@ -1,34 +0,0 @@
-// Copyright (C) 2016 The Qt Company Ltd.
-// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
-
-#ifndef QDEADLINETIMER_P_H
-#define QDEADLINETIMER_P_H
-
-//
-//  W A R N I N G
-//  -------------
-//
-// This file is not part of the Qt API.  It exists purely as an
-// implementation detail. This header file may change from version to
-// version without notice, or even be removed.
-//
-// We mean it.
-//
-
-#include <QtCore/private/qglobal_p.h>
-
-QT_BEGIN_NAMESPACE
-
-enum {
-#if defined(Q_OS_UNIX) && !defined(Q_OS_DARWIN)
-    // t1 contains seconds and t2 contains nanoseconds
-    QDeadlineTimerNanosecondsInT2 = 1
-#else
-    // t1 contains nanoseconds, t2 is always zero
-    QDeadlineTimerNanosecondsInT2 = 0
-#endif
-};
-
-QT_END_NAMESPACE
-
-#endif
diff --git a/src/corelib/kernel/qelapsedtimer.cpp b/src/corelib/kernel/qelapsedtimer.cpp
index 39ddb349..fd5e0905 100644
--- a/src/corelib/kernel/qelapsedtimer.cpp
+++ b/src/corelib/kernel/qelapsedtimer.cpp
@@ -165,9 +165,229 @@ QT_BEGIN_NAMESPACE
     function will return false.
 */
 
+/*!
+    \fn QElapsedTimer::clockType() noexcept
+
+    Returns the clock type that this QElapsedTimer implementation uses.
+
+    Since Qt 6.6, QElapsedTimer uses \c{std::chrono::steady_clock}, so the
+    clock type is always \l MonotonicClock.
+
+    \sa isMonotonic()
+*/
+
+QElapsedTimer::ClockType QElapsedTimer::clockType() noexcept
+{
+    // we use std::chrono::steady_clock
+    return MonotonicClock;
+}
+
+/*!
+    \fn QElapsedTimer::isMonotonic() noexcept
+
+    Returns \c true if this is a monotonic clock, false otherwise. See the
+    information on the different clock types to understand which ones are
+    monotonic.
+
+    Since Qt 6.6, QElapsedTimer uses \c{std::chrono::steady_clock}, so this
+    function now always returns true.
+
+    \sa clockType(), QElapsedTimer::ClockType
+*/
+bool QElapsedTimer::isMonotonic() noexcept
+{
+    // We trust std::chrono::steady_clock to be steady (monotonic); if the
+    // Standard Library is lying to us, users must complain to their vendor.
+    return true;
+}
+
+/*!
+    \typealias QElapsedTimer::Duration
+    Synonym for \c std::chrono::nanoseconds.
+*/
+
+/*!
+    \typealias QElapsedTimer::TimePoint
+    Synonym for \c {std::chrono::time_point<std::chrono::steady_clock, Duration>}.
+*/
+
+/*!
+    Starts this timer. Once started, a timer value can be checked with elapsed() or msecsSinceReference().
+
+    Normally, a timer is started just before a lengthy operation, such as:
+    \snippet qelapsedtimer/main.cpp 0
+
+    Also, starting a timer makes it valid again.
+
+    \sa restart(), invalidate(), elapsed()
+*/
+void QElapsedTimer::start() noexcept
+{
+    static_assert(sizeof(t1) == sizeof(Duration::rep));
+
+    // This assignment will work so long as TimePoint uses the same time
+    // duration or one of finer granularity than steady_clock::time_point. That
+    // means it will work until the first steady_clock using picoseconds.
+    TimePoint now = std::chrono::steady_clock::now();
+    t1 = now.time_since_epoch().count();
+    QT6_ONLY(t2 = 0);
+}
+
+/*!
+    Restarts the timer and returns the number of milliseconds elapsed since
+    the previous start.
+    This function is equivalent to obtaining the elapsed time with elapsed()
+    and then starting the timer again with start(), but it does so in one
+    single operation, avoiding the need to obtain the clock value twice.
+
+    Calling this function on a QElapsedTimer that is invalid
+    results in undefined behavior.
+
+    The following example illustrates how to use this function to calibrate a
+    parameter to a slow operation (for example, an iteration count) so that
+    this operation takes at least 250 milliseconds:
+
+    \snippet qelapsedtimer/main.cpp 3
+
+    \sa start(), invalidate(), elapsed(), isValid()
+*/
+qint64 QElapsedTimer::restart() noexcept
+{
+    QElapsedTimer old = *this;
+    start();
+    return old.msecsTo(*this);
+}
+
+/*!
+    \since 6.6
+
+    Returns a \c{std::chrono::nanoseconds} with the time since this QElapsedTimer was last
+    started.
+
+    Calling this function on a QElapsedTimer that is invalid
+    results in undefined behavior.
+
+    On platforms that do not provide nanosecond resolution, the value returned
+    will be the best estimate available.
+
+    \sa start(), restart(), hasExpired(), invalidate()
+*/
+auto QElapsedTimer::durationElapsed() const noexcept -> Duration
+{
+    TimePoint then{Duration(t1)};
+    return std::chrono::steady_clock::now() - then;
+}
+
+/*!
+    \since 4.8
+
+    Returns the number of nanoseconds since this QElapsedTimer was last
+    started.
+
+    Calling this function on a QElapsedTimer that is invalid
+    results in undefined behavior.
+
+    On platforms that do not provide nanosecond resolution, the value returned
+    will be the best estimate available.
+
+    \sa start(), restart(), hasExpired(), invalidate()
+*/
+qint64 QElapsedTimer::nsecsElapsed() const noexcept
+{
+    return durationElapsed().count();
+}
+
+/*!
+    Returns the number of milliseconds since this QElapsedTimer was last
+    started.
+
+    Calling this function on a QElapsedTimer that is invalid
+    results in undefined behavior.
+
+    \sa start(), restart(), hasExpired(), isValid(), invalidate()
+*/
+qint64 QElapsedTimer::elapsed() const noexcept
+{
+    using namespace std::chrono;
+    return duration_cast<milliseconds>(durationElapsed()).count();
+}
+
+/*!
+    Returns the number of milliseconds between last time this QElapsedTimer
+    object was started and its reference clock's start.
+
+    This number is usually arbitrary for all clocks except the
+    QElapsedTimer::SystemTime clock. For that clock type, this number is the
+    number of milliseconds since January 1st, 1970 at 0:00 UTC (that is, it
+    is the Unix time expressed in milliseconds).
+
+    On Linux, Windows and Apple platforms, this value is usually the time
+    since the system boot, though it usually does not include the time the
+    system has spent in sleep states.
+
+    \sa clockType(), elapsed()
+*/
+qint64 QElapsedTimer::msecsSinceReference() const noexcept
+{
+    using namespace std::chrono;
+    return duration_cast<milliseconds>(Duration(t1)).count();
+}
+
+/*!
+    \since 6.6
+
+    Returns the time difference between this QElapsedTimer and \a other as a
+    \c{std::chrono::nanoseconds}. If \a other was started before this object,
+    the returned value will be negative. If it was started later, the returned
+    value will be positive.
+
+    The return value is undefined if this object or \a other were invalidated.
+
+    \sa secsTo(), elapsed()
+*/
+auto QElapsedTimer::durationTo(const QElapsedTimer &other) const noexcept -> Duration
+{
+    Duration d1(t1);
+    Duration d2(other.t1);
+    return d2 - d1;
+}
+
+/*!
+    Returns the number of milliseconds between this QElapsedTimer and \a
+    other. If \a other was started before this object, the returned value
+    will be negative. If it was started later, the returned value will be
+    positive.
+
+    The return value is undefined if this object or \a other were invalidated.
+
+    \sa secsTo(), elapsed()
+*/
+qint64 QElapsedTimer::msecsTo(const QElapsedTimer &other) const noexcept
+{
+    using namespace std::chrono;
+    return duration_cast<milliseconds>(durationTo(other)).count();
+}
+
+/*!
+    Returns the number of seconds between this QElapsedTimer and \a other. If
+    \a other was started before this object, the returned value will be
+    negative. If it was started later, the returned value will be positive.
+
+    Calling this function on or with a QElapsedTimer that is invalid
+    results in undefined behavior.
+
+    \sa msecsTo(), elapsed()
+*/
+qint64 QElapsedTimer::secsTo(const QElapsedTimer &other) const noexcept
+{
+    using namespace std::chrono;
+    return duration_cast<seconds>(durationTo(other)).count();
+}
+
 static const qint64 invalidData = Q_INT64_C(0x8000000000000000);
 
 /*!
+    \fn QElapsedTimer::invalidate() noexcept
     Marks this QElapsedTimer object as invalid.
 
     An invalid object can be checked with isValid(). Calculations of timer
@@ -193,10 +413,12 @@ bool QElapsedTimer::isValid() const noexcept
 }
 
 /*!
-    Returns \c true if this QElapsedTimer has already expired by \a timeout
-    milliseconds (that is, more than \a timeout milliseconds have elapsed).
-    The value of \a timeout can be -1 to indicate that this timer does not
-    expire, in which case this function will always return false.
+    Returns \c true if elapsed() exceeds the given \a timeout, otherwise \c false.
+
+    A negative \a timeout is interpreted as infinite, so \c false is returned in
+    this case. Otherwise, this is equivalent to \c {elapsed() > timeout}. You
+    can do the same for a duration by comparing durationElapsed() to a duration
+    timeout.
 
     \sa elapsed(), QDeadlineTimer
 */
@@ -207,4 +429,9 @@ bool QElapsedTimer::hasExpired(qint64 timeout) const noexcept
     return quint64(elapsed()) > quint64(timeout);
 }
 
+bool operator<(const QElapsedTimer &lhs, const QElapsedTimer &rhs) noexcept
+{
+    return lhs.t1 < rhs.t1;
+}
+
 QT_END_NAMESPACE
diff --git a/src/corelib/kernel/qelapsedtimer.h b/src/corelib/kernel/qelapsedtimer.h
index ab32265c..7d8b889f 100644
--- a/src/corelib/kernel/qelapsedtimer.h
+++ b/src/corelib/kernel/qelapsedtimer.h
@@ -6,8 +6,9 @@
 
 #include <QtCore/qglobal.h>
 
-QT_BEGIN_NAMESPACE
+#include <chrono>
 
+QT_BEGIN_NAMESPACE
 
 class Q_CORE_EXPORT QElapsedTimer
 {
@@ -21,6 +22,10 @@ public:
         PerformanceCounter
     };
 
+    // similar to std::chrono::*_clock
+    using Duration = std::chrono::nanoseconds;
+    using TimePoint = std::chrono::time_point<std::chrono::steady_clock, Duration>;
+
     constexpr QElapsedTimer() = default;
 
     static ClockType clockType() noexcept;
@@ -31,11 +36,13 @@ public:
     void invalidate() noexcept;
     bool isValid() const noexcept;
 
+    Duration durationElapsed() const noexcept;
     qint64 nsecsElapsed() const noexcept;
     qint64 elapsed() const noexcept;
     bool hasExpired(qint64 timeout) const noexcept;
 
     qint64 msecsSinceReference() const noexcept;
+    Duration durationTo(const QElapsedTimer &other) const noexcept;
     qint64 msecsTo(const QElapsedTimer &other) const noexcept;
     qint64 secsTo(const QElapsedTimer &other) const noexcept;
 
diff --git a/src/corelib/kernel/qelapsedtimer_generic.cpp b/src/corelib/kernel/qelapsedtimer_generic.cpp
deleted file mode 100644
index 874122f4..00000000
--- a/src/corelib/kernel/qelapsedtimer_generic.cpp
+++ /dev/null
@@ -1,169 +0,0 @@
-// Copyright (C) 2016 The Qt Company Ltd.
-// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
-
-#include "qelapsedtimer.h"
-#include "qdeadlinetimer.h"
-#include "qdatetime.h"
-
-QT_BEGIN_NAMESPACE
-
-/*!
-    Returns the clock type that this QElapsedTimer implementation uses.
-
-    \sa isMonotonic()
-*/
-QElapsedTimer::ClockType QElapsedTimer::clockType() noexcept
-{
-    return SystemTime;
-}
-
-/*!
-    Returns \c true if this is a monotonic clock, false otherwise. See the
-    information on the different clock types to understand which ones are
-    monotonic.
-
-    \sa clockType(), QElapsedTimer::ClockType
-*/
-bool QElapsedTimer::isMonotonic() noexcept
-{
-    return false;
-}
-
-/*!
-    Starts this timer. Once started, a timer value can be checked with elapsed() or msecsSinceReference().
-
-    Normally, a timer is started just before a lengthy operation, such as:
-    \snippet qelapsedtimer/main.cpp 0
-
-    Also, starting a timer makes it valid again.
-
-    \sa restart(), invalidate(), elapsed()
-*/
-void QElapsedTimer::start() noexcept
-{
-    restart();
-}
-
-/*!
-    Restarts the timer and returns the number of milliseconds elapsed since
-    the previous start.
-    This function is equivalent to obtaining the elapsed time with elapsed()
-    and then starting the timer again with start(), but it does so in one
-    single operation, avoiding the need to obtain the clock value twice.
-
-    Calling this function on a QElapsedTimer that is invalid
-    results in undefined behavior.
-
-    The following example illustrates how to use this function to calibrate a
-    parameter to a slow operation (for example, an iteration count) so that
-    this operation takes at least 250 milliseconds:
-
-    \snippet qelapsedtimer/main.cpp 3
-
-    \sa start(), invalidate(), elapsed(), isValid()
-*/
-qint64 QElapsedTimer::restart() noexcept
-{
-    qint64 old = t1;
-    t1 = QDateTime::currentMSecsSinceEpoch();
-    t2 = 0;
-    return t1 - old;
-}
-
-/*! \since 4.8
-
-    Returns the number of nanoseconds since this QElapsedTimer was last
-    started.
-
-    Calling this function on a QElapsedTimer that is invalid
-    results in undefined behavior.
-
-    On platforms that do not provide nanosecond resolution, the value returned
-    will be the best estimate available.
-
-    \sa start(), restart(), hasExpired(), invalidate()
-*/
-qint64 QElapsedTimer::nsecsElapsed() const noexcept
-{
-    return elapsed() * 1000000;
-}
-
-/*!
-    Returns the number of milliseconds since this QElapsedTimer was last
-    started.
-
-    Calling this function on a QElapsedTimer that is invalid
-    results in undefined behavior.
-
-    \sa start(), restart(), hasExpired(), isValid(), invalidate()
-*/
-qint64 QElapsedTimer::elapsed() const noexcept
-{
-    return QDateTime::currentMSecsSinceEpoch() - t1;
-}
-
-/*!
-    Returns the number of milliseconds between last time this QElapsedTimer
-    object was started and its reference clock's start.
-
-    This number is usually arbitrary for all clocks except the
-    QElapsedTimer::SystemTime clock. For that clock type, this number is the
-    number of milliseconds since January 1st, 1970 at 0:00 UTC (that is, it
-    is the Unix time expressed in milliseconds).
-
-    On Linux, Windows and Apple platforms, this value is usually the time
-    since the system boot, though it usually does not include the time the
-    system has spent in sleep states.
-
-    \sa clockType(), elapsed()
-*/
-qint64 QElapsedTimer::msecsSinceReference() const noexcept
-{
-    return t1;
-}
-
-/*!
-    Returns the number of milliseconds between this QElapsedTimer and \a
-    other. If \a other was started before this object, the returned value
-    will be negative. If it was started later, the returned value will be
-    positive.
-
-    The return value is undefined if this object or \a other were invalidated.
-
-    \sa secsTo(), elapsed()
-*/
-qint64 QElapsedTimer::msecsTo(const QElapsedTimer &other) const noexcept
-{
-    qint64 diff = other.t1 - t1;
-    return diff;
-}
-
-/*!
-    Returns the number of seconds between this QElapsedTimer and \a other. If
-    \a other was started before this object, the returned value will be
-    negative. If it was started later, the returned value will be positive.
-
-    Calling this function on or with a QElapsedTimer that is invalid
-    results in undefined behavior.
-
-    \sa msecsTo(), elapsed()
-*/
-qint64 QElapsedTimer::secsTo(const QElapsedTimer &other) const noexcept
-{
-    return msecsTo(other) / 1000;
-}
-
-bool operator<(const QElapsedTimer &lhs, const QElapsedTimer &rhs) noexcept
-{
-    return lhs.t1 < rhs.t1;
-}
-
-QDeadlineTimer QDeadlineTimer::current(Qt::TimerType timerType) noexcept
-{
-    QDeadlineTimer result;
-    result.t1 = QDateTime::currentMSecsSinceEpoch() * 1000 * 1000;
-    result.type = timerType;
-    return result;
-}
-
-QT_END_NAMESPACE
diff --git a/src/corelib/kernel/qelapsedtimer_mac.cpp b/src/corelib/kernel/qelapsedtimer_mac.cpp
deleted file mode 100644
index bc87202d..00000000
--- a/src/corelib/kernel/qelapsedtimer_mac.cpp
+++ /dev/null
@@ -1,130 +0,0 @@
-// Copyright (C) 2016 The Qt Company Ltd.
-// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
-
-// ask for the latest POSIX, just in case
-#define _POSIX_C_SOURCE 200809L
-
-#include "qelapsedtimer.h"
-#include "qdeadlinetimer.h"
-#include "qdeadlinetimer_p.h"
-#include <sys/time.h>
-#include <time.h>
-#include <unistd.h>
-
-#include <mach/mach_time.h>
-#include <private/qcore_unix_p.h>
-
-QT_BEGIN_NAMESPACE
-
-#ifdef __LP64__
-typedef __int128_t LargeInt;
-#else
-typedef qint64 LargeInt;
-#endif
-
-QElapsedTimer::ClockType QElapsedTimer::clockType() noexcept
-{
-    return MachAbsoluteTime;
-}
-
-bool QElapsedTimer::isMonotonic() noexcept
-{
-    return true;
-}
-
-static mach_timebase_info_data_t info = { 0, 0 };
-static qint64 absoluteToNSecs(qint64 cpuTime)
-{
-    if (info.denom == 0)
-        mach_timebase_info(&info);
-
-    // don't do multiplication & division if those are equal
-    // (mathematically it would be the same, but it's computationally expensive)
-    if (info.numer == info.denom)
-        return cpuTime;
-    qint64 nsecs = LargeInt(cpuTime) * info.numer / info.denom;
-    return nsecs;
-}
-
-static qint64 absoluteToMSecs(qint64 cpuTime)
-{
-    return absoluteToNSecs(cpuTime) / 1000000;
-}
-
-timespec qt_gettime() noexcept
-{
-    timespec tv;
-
-    uint64_t cpu_time = mach_absolute_time();
-    uint64_t nsecs = absoluteToNSecs(cpu_time);
-    tv.tv_sec = nsecs / 1000000000ull;
-    tv.tv_nsec = nsecs - (tv.tv_sec * 1000000000ull);
-    return tv;
-}
-
-void qt_nanosleep(timespec amount)
-{
-    // Mac doesn't have clock_nanosleep, but it does have nanosleep.
-    // nanosleep is POSIX.1-1993
-
-    int r;
-    EINTR_LOOP(r, nanosleep(&amount, &amount));
-}
-
-void QElapsedTimer::start() noexcept
-{
-    t1 = mach_absolute_time();
-    t2 = 0;
-}
-
-qint64 QElapsedTimer::restart() noexcept
-{
-    qint64 old = t1;
-    t1 = mach_absolute_time();
-    t2 = 0;
-
-    return absoluteToMSecs(t1 - old);
-}
-
-qint64 QElapsedTimer::nsecsElapsed() const noexcept
-{
-    uint64_t cpu_time = mach_absolute_time();
-    return absoluteToNSecs(cpu_time - t1);
-}
-
-qint64 QElapsedTimer::elapsed() const noexcept
-{
-    uint64_t cpu_time = mach_absolute_time();
-    return absoluteToMSecs(cpu_time - t1);
-}
-
-qint64 QElapsedTimer::msecsSinceReference() const noexcept
-{
-    return absoluteToMSecs(t1);
-}
-
-qint64 QElapsedTimer::msecsTo(const QElapsedTimer &other) const noexcept
-{
-    return absoluteToMSecs(other.t1 - t1);
-}
-
-qint64 QElapsedTimer::secsTo(const QElapsedTimer &other) const noexcept
-{
-    return msecsTo(other) / 1000;
-}
-
-bool operator<(const QElapsedTimer &v1, const QElapsedTimer &v2) noexcept
-{
-    return v1.t1 < v2.t1;
-}
-
-QDeadlineTimer QDeadlineTimer::current(Qt::TimerType timerType) noexcept
-{
-    static_assert(!QDeadlineTimerNanosecondsInT2);
-    QDeadlineTimer result;
-    result.type = timerType;
-    result.t1 = absoluteToNSecs(mach_absolute_time());
-    return result;
-}
-
-QT_END_NAMESPACE
diff --git a/src/corelib/kernel/qelapsedtimer_unix.cpp b/src/corelib/kernel/qelapsedtimer_unix.cpp
deleted file mode 100644
index f11ebc00..00000000
--- a/src/corelib/kernel/qelapsedtimer_unix.cpp
+++ /dev/null
@@ -1,209 +0,0 @@
-// Copyright (C) 2016 The Qt Company Ltd.
-// Copyright (C) 2016 Intel Corporation.
-// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
-
-#include "qelapsedtimer.h"
-#include "qdeadlinetimer.h"
-#include "qdeadlinetimer_p.h"
-#if defined(Q_OS_VXWORKS)
-#include "qfunctions_vxworks.h"
-#else
-#include <sys/time.h>
-#include <time.h>
-#endif
-#include <unistd.h>
-
-#include <qatomic.h>
-#include "private/qcore_unix_p.h"
-
-#if defined(QT_NO_CLOCK_MONOTONIC) || defined(QT_BOOTSTRAPPED)
-// turn off the monotonic clock
-# ifdef _POSIX_MONOTONIC_CLOCK
-#  undef _POSIX_MONOTONIC_CLOCK
-# endif
-# define _POSIX_MONOTONIC_CLOCK -1
-#endif
-
-QT_BEGIN_NAMESPACE
-
-/*
- * Design:
- *
- * POSIX offers a facility to select the system's monotonic clock when getting
- * the current timestamp. Whereas the functions are mandatory in POSIX.1-2008,
- * the presence of a monotonic clock is a POSIX Option (see the document
- *  http://pubs.opengroup.org/onlinepubs/9699919799/basedefs/V1_chap02.html#tag_02_01_06 )
- *
- * The macro _POSIX_MONOTONIC_CLOCK can therefore assume the following values:
- *  -1          monotonic clock is never supported on this system
- *   0          monotonic clock might be supported, runtime check is needed
- *  >1          (such as 200809L) monotonic clock is always supported
- *
- * The unixCheckClockType() function will return the clock to use: either
- * CLOCK_MONOTONIC or CLOCK_REALTIME. In the case the POSIX option has a value
- * of zero, then this function stores a static that contains the clock to be
- * used.
- *
- * There's one extra case, which is when CLOCK_REALTIME isn't defined. When
- * that's the case, we'll emulate the clock_gettime function with gettimeofday.
- *
- * Conforming to:
- *  POSIX.1b-1993 section "Clocks and Timers"
- *  included in UNIX98 (Single Unix Specification v2)
- *  included in POSIX.1-2001
- *  see http://pubs.opengroup.org/onlinepubs/9699919799/functions/clock_getres.html
- */
-
-#if !defined(CLOCK_REALTIME)
-#  define CLOCK_REALTIME 0
-static inline void qt_clock_gettime(int, struct timespec *ts)
-{
-    // support clock_gettime with gettimeofday
-    struct timeval tv;
-    gettimeofday(&tv, 0);
-    ts->tv_sec = tv.tv_sec;
-    ts->tv_nsec = tv.tv_usec * 1000;
-}
-
-static inline int regularClock()
-{
-    return 0;
-}
-#else
-static inline void qt_clock_gettime(clockid_t clock, struct timespec *ts)
-{
-    clock_gettime(clock, ts);
-}
-
-static inline clock_t regularClockCheck()
-{
-    struct timespec regular_clock_resolution;
-    int r = -1;
-
-#  ifdef CLOCK_MONOTONIC
-    // try the monotonic clock
-    r = clock_getres(CLOCK_MONOTONIC, &regular_clock_resolution);
-
-#    ifdef Q_OS_LINUX
-    // Despite glibc claiming that we should check at runtime, the Linux kernel
-    // always supports the monotonic clock
-    Q_ASSERT(r == 0);
-    return CLOCK_MONOTONIC;
-#    endif
-
-    if (r == 0)
-        return CLOCK_MONOTONIC;
-#  endif
-
-    // no monotonic, try the realtime clock
-    r = clock_getres(CLOCK_REALTIME, &regular_clock_resolution);
-    Q_ASSERT(r == 0);
-    return CLOCK_REALTIME;
-}
-
-static inline clock_t regularClock()
-{
-    static const clock_t clock = regularClockCheck();
-    return clock;
-}
-#endif
-
-bool QElapsedTimer::isMonotonic() noexcept
-{
-    return clockType() == MonotonicClock;
-}
-
-QElapsedTimer::ClockType QElapsedTimer::clockType() noexcept
-{
-    return regularClock() == CLOCK_REALTIME ? SystemTime : MonotonicClock;
-}
-
-static inline void do_gettime(qint64 *sec, qint64 *frac)
-{
-    timespec ts;
-    qt_clock_gettime(regularClock(), &ts);
-    *sec = ts.tv_sec;
-    *frac = ts.tv_nsec;
-}
-
-// used in qcore_unix.cpp and qeventdispatcher_unix.cpp
-struct timespec qt_gettime() noexcept
-{
-    qint64 sec, frac;
-    do_gettime(&sec, &frac);
-
-    timespec tv;
-    tv.tv_sec = sec;
-    tv.tv_nsec = frac;
-
-    return tv;
-}
-
-static qint64 elapsedAndRestart(qint64 sec, qint64 frac,
-                                qint64 *nowsec, qint64 *nowfrac)
-{
-    do_gettime(nowsec, nowfrac);
-    sec = *nowsec - sec;
-    frac = *nowfrac - frac;
-    return (sec * Q_INT64_C(1000000000) + frac) / Q_INT64_C(1000000);
-}
-
-void QElapsedTimer::start() noexcept
-{
-    do_gettime(&t1, &t2);
-}
-
-qint64 QElapsedTimer::restart() noexcept
-{
-    return elapsedAndRestart(t1, t2, &t1, &t2);
-}
-
-qint64 QElapsedTimer::nsecsElapsed() const noexcept
-{
-    qint64 sec, frac;
-    do_gettime(&sec, &frac);
-    sec = sec - t1;
-    frac = frac - t2;
-    return sec * Q_INT64_C(1000000000) + frac;
-}
-
-qint64 QElapsedTimer::elapsed() const noexcept
-{
-    return nsecsElapsed() / Q_INT64_C(1000000);
-}
-
-qint64 QElapsedTimer::msecsSinceReference() const noexcept
-{
-    return t1 * Q_INT64_C(1000) + t2 / Q_INT64_C(1000000);
-}
-
-qint64 QElapsedTimer::msecsTo(const QElapsedTimer &other) const noexcept
-{
-    qint64 secs = other.t1 - t1;
-    qint64 fraction = other.t2 - t2;
-    return (secs * Q_INT64_C(1000000000) + fraction) / Q_INT64_C(1000000);
-}
-
-qint64 QElapsedTimer::secsTo(const QElapsedTimer &other) const noexcept
-{
-    return other.t1 - t1;
-}
-
-bool operator<(const QElapsedTimer &v1, const QElapsedTimer &v2) noexcept
-{
-    return v1.t1 < v2.t1 || (v1.t1 == v2.t1 && v1.t2 < v2.t2);
-}
-
-QDeadlineTimer QDeadlineTimer::current(Qt::TimerType timerType) noexcept
-{
-    static_assert(QDeadlineTimerNanosecondsInT2);
-    QDeadlineTimer result;
-    qint64 cursec, curnsec;
-    do_gettime(&cursec, &curnsec);
-    result.t1 = cursec;
-    result.t2 = curnsec;
-    result.type = timerType;
-    return result;
-}
-
-QT_END_NAMESPACE
diff --git a/src/corelib/kernel/qelapsedtimer_win.cpp b/src/corelib/kernel/qelapsedtimer_win.cpp
deleted file mode 100644
index bbd5b220..00000000
--- a/src/corelib/kernel/qelapsedtimer_win.cpp
+++ /dev/null
@@ -1,123 +0,0 @@
-// Copyright (C) 2016 The Qt Company Ltd.
-// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
-
-#include "qelapsedtimer.h"
-#include "qdeadlinetimer.h"
-#include "qdeadlinetimer_p.h"
-#include <qt_windows.h>
-
-QT_BEGIN_NAMESPACE
-
-// Result of QueryPerformanceFrequency
-static quint64 counterFrequency = 0;
-
-static void resolveCounterFrequency()
-{
-    static bool done = false;
-    if (done)
-        return;
-
-    // Retrieve the number of high-resolution performance counter ticks per second
-    LARGE_INTEGER frequency;
-    if (!QueryPerformanceFrequency(&frequency) || frequency.QuadPart == 0)
-        qFatal("QueryPerformanceFrequency failed, even though Microsoft documentation promises it wouldn't.");
-    counterFrequency = frequency.QuadPart;
-
-    done = true;
-}
-
-static inline qint64 ticksToNanoseconds(qint64 ticks)
-{
-    // QueryPerformanceCounter uses an arbitrary frequency
-    qint64 seconds = ticks / counterFrequency;
-    qint64 nanoSeconds = (ticks - seconds * counterFrequency) * 1000000000 / counterFrequency;
-    return seconds * 1000000000 + nanoSeconds;
-}
-
-
-static quint64 getTickCount()
-{
-    resolveCounterFrequency();
-
-    LARGE_INTEGER counter;
-    bool ok = QueryPerformanceCounter(&counter);
-    Q_ASSERT_X(ok, "QElapsedTimer::start()",
-               "QueryPerformanceCounter failed, although QueryPerformanceFrequency succeeded.");
-    Q_UNUSED(ok);
-    return counter.QuadPart;
-}
-
-quint64 qt_msectime()
-{
-    return ticksToNanoseconds(getTickCount()) / 1000000;
-}
-
-QElapsedTimer::ClockType QElapsedTimer::clockType() noexcept
-{
-    resolveCounterFrequency();
-
-    return PerformanceCounter;
-}
-
-bool QElapsedTimer::isMonotonic() noexcept
-{
-    return true;
-}
-
-void QElapsedTimer::start() noexcept
-{
-    t1 = getTickCount();
-    t2 = 0;
-}
-
-qint64 QElapsedTimer::restart() noexcept
-{
-    qint64 oldt1 = t1;
-    t1 = getTickCount();
-    t2 = 0;
-    return ticksToNanoseconds(t1 - oldt1) / 1000000;
-}
-
-qint64 QElapsedTimer::nsecsElapsed() const noexcept
-{
-    qint64 elapsed = getTickCount() - t1;
-    return ticksToNanoseconds(elapsed);
-}
-
-qint64 QElapsedTimer::elapsed() const noexcept
-{
-    qint64 elapsed = getTickCount() - t1;
-    return ticksToNanoseconds(elapsed) / 1000000;
-}
-
-qint64 QElapsedTimer::msecsSinceReference() const noexcept
-{
-    return ticksToNanoseconds(t1) / 1000000;
-}
-
-qint64 QElapsedTimer::msecsTo(const QElapsedTimer &other) const noexcept
-{
-    qint64 difference = other.t1 - t1;
-    return ticksToNanoseconds(difference) / 1000000;
-}
-
-qint64 QElapsedTimer::secsTo(const QElapsedTimer &other) const noexcept
-{
-    return msecsTo(other) / 1000;
-}
-
-bool operator<(const QElapsedTimer &v1, const QElapsedTimer &v2) noexcept
-{
-    return (v1.t1 - v2.t1) < 0;
-}
-
-QDeadlineTimer QDeadlineTimer::current(Qt::TimerType timerType) noexcept
-{
-    static_assert(!QDeadlineTimerNanosecondsInT2);
-    QDeadlineTimer result;
-    result.t1 = ticksToNanoseconds(getTickCount());
-    result.type = timerType;
-    return result;
-}
-
-QT_END_NAMESPACE
diff --git a/src/corelib/kernel/qeventdispatcher_glib.cpp b/src/corelib/kernel/qeventdispatcher_glib.cpp
index 9e3ead09..85403bda 100644
--- a/src/corelib/kernel/qeventdispatcher_glib.cpp
+++ b/src/corelib/kernel/qeventdispatcher_glib.cpp
@@ -488,7 +488,8 @@ void QEventDispatcherGlib::registerTimer(int timerId, qint64 interval, Qt::Timer
 #endif
 
     Q_D(QEventDispatcherGlib);
-    d->timerSource->timerList.registerTimer(timerId, interval, timerType, object);
+    d->timerSource->timerList.registerTimer(timerId, std::chrono::milliseconds{ interval },
+                                            timerType, object);
 }
 
 bool QEventDispatcherGlib::unregisterTimer(int timerId)
diff --git a/src/corelib/kernel/qeventdispatcher_unix.cpp b/src/corelib/kernel/qeventdispatcher_unix.cpp
index d7b2fd6d..c75b59ac 100644
--- a/src/corelib/kernel/qeventdispatcher_unix.cpp
+++ b/src/corelib/kernel/qeventdispatcher_unix.cpp
@@ -299,7 +299,7 @@ void QEventDispatcherUNIX::registerTimer(int timerId, qint64 interval, Qt::Timer
 #endif
 
     Q_D(QEventDispatcherUNIX);
-    d->timerList.registerTimer(timerId, interval, timerType, obj);
+    d->timerList.registerTimer(timerId, std::chrono::milliseconds{ interval }, timerType, obj);
 }
 
 /*!
diff --git a/src/corelib/kernel/qeventdispatcher_wasm.cpp b/src/corelib/kernel/qeventdispatcher_wasm.cpp
index dac02ad2..db2a3bd1 100644
--- a/src/corelib/kernel/qeventdispatcher_wasm.cpp
+++ b/src/corelib/kernel/qeventdispatcher_wasm.cpp
@@ -116,6 +116,8 @@ Q_CONSTINIT QEventDispatcherWasm *QEventDispatcherWasm::g_mainThreadEventDispatc
 #if QT_CONFIG(thread)
 Q_CONSTINIT QVector<QEventDispatcherWasm *> QEventDispatcherWasm::g_secondaryThreadEventDispatchers;
 Q_CONSTINIT std::mutex QEventDispatcherWasm::g_staticDataMutex;
+emscripten::ProxyingQueue QEventDispatcherWasm::g_proxyingQueue;
+pthread_t QEventDispatcherWasm::g_mainThread;
 #endif
 // ### dynamic initialization:
 std::multimap<int, QSocketNotifier *> QEventDispatcherWasm::g_socketNotifiers;
@@ -144,6 +146,9 @@ QEventDispatcherWasm::QEventDispatcherWasm()
         // dispatchers so we set a global pointer to it.
         Q_ASSERT(g_mainThreadEventDispatcher == nullptr);
         g_mainThreadEventDispatcher = this;
+#if QT_CONFIG(thread)
+        g_mainThread = pthread_self();
+#endif
     } else {
 #if QT_CONFIG(thread)
         std::lock_guard<std::mutex> lock(g_staticDataMutex);
@@ -218,8 +223,7 @@ bool QEventDispatcherWasm::processEvents(QEventLoop::ProcessEventsFlags flags)
             handleApplicationExec();
     }
 
-    QCoreApplication::sendPostedEvents();
-    processWindowSystemEvents(flags);
+    processPostedEvents();
 
     // The processPostedEvents() call above may process an event which deletes the
     // application object and the event dispatcher; stop event processing in that case.
@@ -242,11 +246,6 @@ bool QEventDispatcherWasm::processEvents(QEventLoop::ProcessEventsFlags flags)
     return false;
 }
 
-void QEventDispatcherWasm::processWindowSystemEvents(QEventLoop::ProcessEventsFlags flags)
-{
-    Q_UNUSED(flags);
-}
-
 void QEventDispatcherWasm::registerSocketNotifier(QSocketNotifier *notifier)
 {
     LOCK_GUARD(g_staticDataMutex);
@@ -370,7 +369,7 @@ void QEventDispatcherWasm::wakeUp()
             m_pendingProcessEvents = true;
         }
         runOnMainThreadAsync([this](){
-            QEventDispatcherWasm::callProcessEvents(this);
+            QEventDispatcherWasm::callProcessPostedEvents(this);
         });
     }
 }
@@ -462,7 +461,7 @@ bool QEventDispatcherWasm::wakeEventDispatcherThread()
 
 // Process event activation callbacks for the main thread event dispatcher.
 // Must be called on the main thread.
-void QEventDispatcherWasm::callProcessEvents(void *context)
+void QEventDispatcherWasm::callProcessPostedEvents(void *context)
 {
     Q_ASSERT(emscripten_is_main_runtime_thread());
 
@@ -470,7 +469,7 @@ void QEventDispatcherWasm::callProcessEvents(void *context)
     if (!g_mainThreadEventDispatcher)
         return;
 
-    // In the unlikely event that we get a callProcessEvents() call for
+    // In the unlikely event that we get a callProcessPostedEvents() call for
     // a previous main thread event dispatcher (i.e. the QApplication
     // object was deleted and created again): just ignore it and return.
     if (context != g_mainThreadEventDispatcher)
@@ -480,7 +479,14 @@ void QEventDispatcherWasm::callProcessEvents(void *context)
         LOCK_GUARD(g_mainThreadEventDispatcher->m_mutex);
         g_mainThreadEventDispatcher->m_pendingProcessEvents = false;
     }
-    g_mainThreadEventDispatcher->processEvents(QEventLoop::AllEvents);
+
+    g_mainThreadEventDispatcher->processPostedEvents();
+}
+
+bool QEventDispatcherWasm::processPostedEvents()
+{
+    QCoreApplication::sendPostedEvents();
+    return false;
 }
 
 void QEventDispatcherWasm::processTimers()
@@ -504,13 +510,13 @@ void QEventDispatcherWasm::updateNativeTimer()
     // access to m_timerInfo), and then call native API to set the new
     // wakeup time on the main thread.
 
-    auto timespecToNanosec = [](timespec ts) -> uint64_t {
+    auto timespecToMsec = [](timespec ts) -> uint64_t {
         return ts.tv_sec * 1000 + ts.tv_nsec / (1000 * 1000);
     };
     timespec toWait;
     bool hasTimer = m_timerInfo->timerWait(toWait);
-    uint64_t currentTime = timespecToNanosec(m_timerInfo->currentTime);
-    uint64_t toWaitDuration = timespecToNanosec(toWait);
+    uint64_t currentTime = timespecToMsec(m_timerInfo->currentTime);
+    uint64_t toWaitDuration = timespecToMsec(toWait);
     uint64_t newTargetTime = currentTime + toWaitDuration;
 
     auto maintainNativeTimer = [this, hasTimer, toWaitDuration, newTargetTime]() {
@@ -820,7 +826,9 @@ void QEventDispatcherWasm::runOnMainThread(std::function<void(void)> fn)
 #if QT_CONFIG(thread)
     if (!emscripten_is_main_runtime_thread()) {
         void *context = new std::function<void(void)>(fn);
-        emscripten_async_run_in_main_runtime_thread_(EM_FUNC_SIG_VI, reinterpret_cast<void *>(trampoline), context);
+        g_proxyingQueue.proxyAsync(g_mainThread, [context]{
+            trampoline(context);
+        });
         return;
     }
 #endif
@@ -834,7 +842,9 @@ void QEventDispatcherWasm::runOnMainThreadAsync(std::function<void(void)> fn)
     void *context = new std::function<void(void)>(fn);
 #if QT_CONFIG(thread)
     if (!emscripten_is_main_runtime_thread()) {
-        emscripten_async_run_in_main_runtime_thread_(EM_FUNC_SIG_VI, reinterpret_cast<void *>(trampoline), context);
+        g_proxyingQueue.proxyAsync(g_mainThread, [context]{
+            trampoline(context);
+        });
         return;
     }
 #endif
diff --git a/src/corelib/kernel/qeventdispatcher_wasm_p.h b/src/corelib/kernel/qeventdispatcher_wasm_p.h
index 50f1bda2..1a87ad3b 100644
--- a/src/corelib/kernel/qeventdispatcher_wasm_p.h
+++ b/src/corelib/kernel/qeventdispatcher_wasm_p.h
@@ -24,6 +24,8 @@
 #include <optional>
 #include <tuple>
 
+#include <emscripten/proxying.h>
+
 QT_BEGIN_NAMESPACE
 
 Q_DECLARE_LOGGING_CATEGORY(lcEventDispatcher);
@@ -53,7 +55,7 @@ public:
     static void socketSelect(int timeout, int socket, bool waitForRead, bool waitForWrite,
                             bool *selectForRead, bool *selectForWrite, bool *socketDisconnect);
 protected:
-    virtual void processWindowSystemEvents(QEventLoop::ProcessEventsFlags flags);
+    virtual bool processPostedEvents();
 
 private:
     bool isMainThreadEventDispatcher();
@@ -64,7 +66,7 @@ private:
     void handleDialogExec();
     bool wait(int timeout = -1);
     bool wakeEventDispatcherThread();
-    static void callProcessEvents(void *eventDispatcher);
+    static void callProcessPostedEvents(void *eventDispatcher);
 
     void processTimers();
     void updateNativeTimer();
@@ -106,6 +108,8 @@ private:
 
     static QVector<QEventDispatcherWasm *> g_secondaryThreadEventDispatchers;
     static std::mutex g_staticDataMutex;
+    static emscripten::ProxyingQueue g_proxyingQueue;
+    static pthread_t g_mainThread;
 
     // Note on mutex usage: the global g_staticDataMutex protects the global (g_ prefixed) data,
     // while the per eventdispatcher m_mutex protects the state accociated with blocking and waking
diff --git a/src/corelib/kernel/qeventdispatcher_win.cpp b/src/corelib/kernel/qeventdispatcher_win.cpp
index 26467f34..30ea3bfe 100644
--- a/src/corelib/kernel/qeventdispatcher_win.cpp
+++ b/src/corelib/kernel/qeventdispatcher_win.cpp
@@ -56,6 +56,13 @@ class QEventDispatcherWin32Private;
 
 LRESULT QT_WIN_CALLBACK qt_internal_proc(HWND hwnd, UINT message, WPARAM wp, LPARAM lp);
 
+static quint64 qt_msectime()
+{
+    using namespace std::chrono;
+    auto t = duration_cast<milliseconds>(steady_clock::now().time_since_epoch());
+    return t.count();
+}
+
 QEventDispatcherWin32Private::QEventDispatcherWin32Private()
     : interrupt(false), internalHwnd(0),
       sendPostedEventsTimerId(0), wakeUps(0),
diff --git a/src/corelib/kernel/qeventdispatcher_win_p.h b/src/corelib/kernel/qeventdispatcher_win_p.h
index ecd4bcb2..e6ea6b28 100644
--- a/src/corelib/kernel/qeventdispatcher_win_p.h
+++ b/src/corelib/kernel/qeventdispatcher_win_p.h
@@ -28,7 +28,6 @@ class QEventDispatcherWin32Private;
 
 // forward declaration
 LRESULT QT_WIN_CALLBACK qt_internal_proc(HWND hwnd, UINT message, WPARAM wp, LPARAM lp);
-quint64 qt_msectime();
 
 class Q_CORE_EXPORT QEventDispatcherWin32 : public QAbstractEventDispatcher
 {
diff --git a/src/corelib/kernel/qeventloop.cpp b/src/corelib/kernel/qeventloop.cpp
index 7001bfa5..769f9a68 100644
--- a/src/corelib/kernel/qeventloop.cpp
+++ b/src/corelib/kernel/qeventloop.cpp
@@ -293,57 +293,10 @@ bool QEventLoop::event(QEvent *event)
 void QEventLoop::quit()
 { exit(0); }
 
-
-class QEventLoopLockerPrivate
-{
-public:
-    explicit QEventLoopLockerPrivate(QEventLoopPrivate *loop)
-      : loop(loop), type(EventLoop)
-    {
-        loop->ref();
-    }
-
-    explicit QEventLoopLockerPrivate(QThreadPrivate *thread)
-      : thread(thread), type(Thread)
-    {
-        thread->ref();
-    }
-
-    explicit QEventLoopLockerPrivate(QCoreApplicationPrivate *app)
-      : app(app), type(Application)
-    {
-        app->ref();
-    }
-
-    ~QEventLoopLockerPrivate()
-    {
-        switch (type)
-        {
-        case EventLoop:
-            loop->deref();
-            break;
-        case Thread:
-            thread->deref();
-            break;
-        default:
-            app->deref();
-            break;
-        }
-    }
-
-private:
-    union {
-        QEventLoopPrivate * loop;
-        QThreadPrivate * thread;
-        QCoreApplicationPrivate * app;
-    };
-    enum Type {
-        EventLoop,
-        Thread,
-        Application
-    };
-    const Type type;
-};
+// If any of these trigger, the Type bits will interfere with the pointer values:
+static_assert(alignof(QEventLoop) >= 4);
+static_assert(alignof(QThread) >= 4);
+static_assert(alignof(QCoreApplication) >= 4);
 
 /*!
     \class QEventLoopLocker
@@ -372,8 +325,8 @@ private:
 
     \sa QCoreApplication::quit(), QCoreApplication::isQuitLockEnabled()
  */
-QEventLoopLocker::QEventLoopLocker()
-  : d_ptr(new QEventLoopLockerPrivate(static_cast<QCoreApplicationPrivate*>(QObjectPrivate::get(QCoreApplication::instance()))))
+QEventLoopLocker::QEventLoopLocker() noexcept
+    : QEventLoopLocker{QCoreApplication::instance(), Type::Application}
 {
 
 }
@@ -385,8 +338,8 @@ QEventLoopLocker::QEventLoopLocker()
 
     \sa QEventLoop::quit()
  */
-QEventLoopLocker::QEventLoopLocker(QEventLoop *loop)
-  : d_ptr(new QEventLoopLockerPrivate(static_cast<QEventLoopPrivate*>(QObjectPrivate::get(loop))))
+QEventLoopLocker::QEventLoopLocker(QEventLoop *loop) noexcept
+    : QEventLoopLocker{loop, Type::EventLoop}
 {
 
 }
@@ -398,8 +351,8 @@ QEventLoopLocker::QEventLoopLocker(QEventLoop *loop)
 
     \sa QThread::quit()
  */
-QEventLoopLocker::QEventLoopLocker(QThread *thread)
-  : d_ptr(new QEventLoopLockerPrivate(static_cast<QThreadPrivate*>(QObjectPrivate::get(thread))))
+QEventLoopLocker::QEventLoopLocker(QThread *thread) noexcept
+    : QEventLoopLocker{thread, Type::Thread}
 {
 
 }
@@ -409,7 +362,33 @@ QEventLoopLocker::QEventLoopLocker(QThread *thread)
  */
 QEventLoopLocker::~QEventLoopLocker()
 {
-    delete d_ptr;
+    visit([](auto p) { p->d_func()->deref(); });
+}
+
+/*!
+    \internal
+*/
+QEventLoopLocker::QEventLoopLocker(void *ptr, Type t) noexcept
+    : p{quintptr(ptr) | quintptr(t)}
+{
+    visit([](auto p) { p->d_func()->ref(); });
+}
+
+/*!
+    \internal
+*/
+template <typename Func>
+void QEventLoopLocker::visit(Func f) const
+{
+    const auto ptr = pointer();
+    if (!ptr)
+        return;
+    switch (type()) {
+    case Type::EventLoop:   return f(static_cast<QEventLoop *>(ptr));
+    case Type::Thread:      return f(static_cast<QThread *>(ptr));
+    case Type::Application: return f(static_cast<QCoreApplication *>(ptr));
+    }
+    Q_UNREACHABLE();
 }
 
 QT_END_NAMESPACE
diff --git a/src/corelib/kernel/qeventloop.h b/src/corelib/kernel/qeventloop.h
index 1da1d233..b8df58bd 100644
--- a/src/corelib/kernel/qeventloop.h
+++ b/src/corelib/kernel/qeventloop.h
@@ -8,12 +8,14 @@
 
 QT_BEGIN_NAMESPACE
 
+class QEventLoopLocker;
 class QEventLoopPrivate;
 
 class Q_CORE_EXPORT QEventLoop : public QObject
 {
     Q_OBJECT
     Q_DECLARE_PRIVATE(QEventLoop)
+    friend class QEventLoopLocker;
 
 public:
     explicit QEventLoop(QObject *parent = nullptr);
@@ -51,17 +53,34 @@ Q_DECLARE_OPERATORS_FOR_FLAGS(QEventLoop::ProcessEventsFlags)
 
 class QEventLoopLockerPrivate;
 
-class Q_CORE_EXPORT QEventLoopLocker
+class QEventLoopLocker
 {
 public:
-    QEventLoopLocker();
-    explicit QEventLoopLocker(QEventLoop *loop);
-    explicit QEventLoopLocker(QThread *thread);
-    ~QEventLoopLocker();
+    Q_NODISCARD_CTOR Q_CORE_EXPORT QEventLoopLocker() noexcept;
+    Q_NODISCARD_CTOR Q_CORE_EXPORT explicit QEventLoopLocker(QEventLoop *loop) noexcept;
+    Q_NODISCARD_CTOR Q_CORE_EXPORT explicit QEventLoopLocker(QThread *thread) noexcept;
+    Q_CORE_EXPORT ~QEventLoopLocker();
 
 private:
     Q_DISABLE_COPY(QEventLoopLocker)
-    QEventLoopLockerPrivate *d_ptr;
+    friend class QEventLoopLockerPrivate;
+
+    //
+    // Private implementation details.
+    // Do not call from public inline API!
+    //
+    enum class Type : quintptr {
+        EventLoop,
+        Thread,
+        Application,
+    };
+    explicit QEventLoopLocker(void *ptr, Type t) noexcept;
+    quintptr p;
+    static constexpr quintptr TypeMask = 0x3;
+    Type type() const { return Type(p & TypeMask); }
+    void *pointer() const { return reinterpret_cast<void *>(p & ~TypeMask); }
+    template <typename Func>
+    void visit(Func func) const;
 };
 
 QT_END_NAMESPACE
diff --git a/src/corelib/kernel/qiterable.h b/src/corelib/kernel/qiterable.h
index 11bf82dc..1178c5e8 100644
--- a/src/corelib/kernel/qiterable.h
+++ b/src/corelib/kernel/qiterable.h
@@ -19,16 +19,16 @@ namespace QtPrivate {
         QTaggedPointer<Storage, Tag> m_pointer;
 
     public:
-        QConstPreservingPointer(std::nullptr_t) : m_pointer(nullptr, Const) {}
+        Q_NODISCARD_CTOR QConstPreservingPointer(std::nullptr_t) : m_pointer(nullptr, Const) {}
 
-        QConstPreservingPointer(const void *pointer, qsizetype alignment)
+        Q_NODISCARD_CTOR QConstPreservingPointer(const void *pointer, qsizetype alignment)
             : m_pointer(reinterpret_cast<Storage *>(const_cast<void *>(pointer)), Const)
         {
             Q_UNUSED(alignment);
             Q_ASSERT(alignment > qsizetype(alignof(Storage)));
         }
 
-        QConstPreservingPointer(void *pointer, qsizetype alignment)
+        Q_NODISCARD_CTOR QConstPreservingPointer(void *pointer, qsizetype alignment)
             : m_pointer(reinterpret_cast<Storage *>(pointer), Mutable)
         {
             Q_UNUSED(alignment);
@@ -36,20 +36,20 @@ namespace QtPrivate {
         }
 
         template<typename InputType>
-        QConstPreservingPointer(const InputType *pointer)
+        Q_NODISCARD_CTOR QConstPreservingPointer(const InputType *pointer)
             : m_pointer(reinterpret_cast<Storage *>(const_cast<InputType *>(pointer)), Const)
         {
             static_assert(alignof(InputType) >= alignof(Storage));
         }
 
         template<typename InputType>
-        QConstPreservingPointer(InputType *pointer)
+        Q_NODISCARD_CTOR QConstPreservingPointer(InputType *pointer)
             : m_pointer(reinterpret_cast<Storage *>(pointer), Mutable)
         {
             static_assert(alignof(InputType) >= alignof(Storage));
         }
 
-        QConstPreservingPointer() = default;
+        Q_NODISCARD_CTOR QConstPreservingPointer() = default;
 
         const Type *constPointer() const
         {
diff --git a/src/corelib/kernel/qjnihelpers.cpp b/src/corelib/kernel/qjnihelpers.cpp
index 5981a085..78d05261 100644
--- a/src/corelib/kernel/qjnihelpers.cpp
+++ b/src/corelib/kernel/qjnihelpers.cpp
@@ -10,6 +10,7 @@
 #include "qsemaphore.h"
 #include "qreadwritelock.h"
 #include <QtCore/private/qcoreapplication_p.h>
+#include <QtCore/private/qlocking_p.h>
 
 #include <android/log.h>
 #include <deque>
@@ -34,10 +35,10 @@ static jobject g_jActivity = nullptr;
 static jobject g_jService = nullptr;
 static jobject g_jClassLoader = nullptr;
 
-Q_GLOBAL_STATIC(QtAndroidPrivate::OnBindListener *, g_onBindListener, nullptr);
-Q_GLOBAL_STATIC(QMutex, g_onBindListenerMutex);
+Q_CONSTINIT static QtAndroidPrivate::OnBindListener *g_onBindListener;
+Q_CONSTINIT static QBasicMutex g_onBindListenerMutex;
 Q_GLOBAL_STATIC(QSemaphore, g_waitForServiceSetupSemaphore);
-Q_GLOBAL_STATIC(QAtomicInt, g_serviceSetupLockers);
+Q_CONSTINIT static QBasicAtomicInt g_serviceSetupLockers = Q_BASIC_ATOMIC_INITIALIZER(0);
 
 Q_GLOBAL_STATIC(QReadWriteLock, g_updateMutex);
 
@@ -361,36 +362,36 @@ void QtAndroidPrivate::waitForServiceSetup()
 
 int QtAndroidPrivate::acuqireServiceSetup(int flags)
 {
-    g_serviceSetupLockers->ref();
+    g_serviceSetupLockers.ref();
     return flags;
 }
 
 void QtAndroidPrivate::setOnBindListener(QtAndroidPrivate::OnBindListener *listener)
 {
-    QMutexLocker lock(g_onBindListenerMutex());
-    *g_onBindListener = listener;
-    if (!g_serviceSetupLockers->deref())
+    const auto lock = qt_scoped_lock(g_onBindListenerMutex);
+    g_onBindListener = listener;
+    if (!g_serviceSetupLockers.deref())
         g_waitForServiceSetupSemaphore->release();
 }
 
 jobject QtAndroidPrivate::callOnBindListener(jobject intent)
 {
-    QMutexLocker lock(g_onBindListenerMutex());
-    if (*g_onBindListener)
-        return (*g_onBindListener)->onBind(intent);
+    const auto lock = qt_scoped_lock(g_onBindListenerMutex);
+    if (g_onBindListener)
+        return g_onBindListener->onBind(intent);
     return nullptr;
 }
 
-Q_GLOBAL_STATIC(QAtomicInt, g_androidDeadlockProtector);
+Q_CONSTINIT static QBasicAtomicInt g_androidDeadlockProtector = Q_BASIC_ATOMIC_INITIALIZER(0);
 
 bool QtAndroidPrivate::acquireAndroidDeadlockProtector()
 {
-    return g_androidDeadlockProtector->testAndSetAcquire(0, 1);
+    return g_androidDeadlockProtector.testAndSetAcquire(0, 1);
 }
 
 void QtAndroidPrivate::releaseAndroidDeadlockProtector()
 {
-    g_androidDeadlockProtector->storeRelease(0);
+    g_androidDeadlockProtector.storeRelease(0);
 }
 
 QT_END_NAMESPACE
diff --git a/src/corelib/kernel/qjniobject.cpp b/src/corelib/kernel/qjniobject.cpp
index df433509..07acd11d 100644
--- a/src/corelib/kernel/qjniobject.cpp
+++ b/src/corelib/kernel/qjniobject.cpp
@@ -864,64 +864,6 @@ QByteArray QJniObject::className() const
     return d->m_className;
 }
 
-QJniObject QJniObject::callObjectMethodV(const char *methodName,
-                                         const char *signature,
-                                         va_list args) const
-{
-    QJniEnvironment env;
-    jobject res = nullptr;
-    jmethodID id = getCachedMethodID(env.jniEnv(), methodName, signature);
-    if (id) {
-        res = env->CallObjectMethodV(d->m_jobject, id, args);
-        if (env.checkAndClearExceptions()) {
-            env->DeleteLocalRef(res);
-            res = nullptr;
-        }
-    }
-
-    QJniObject obj(res);
-    env->DeleteLocalRef(res);
-    return obj;
-}
-
-QJniObject QJniObject::callStaticObjectMethodV(const char *className,
-                                               const char *methodName,
-                                               const char *signature,
-                                               va_list args)
-{
-    QJniEnvironment env;
-    jobject res = nullptr;
-    jclass clazz = loadClass(className, env.jniEnv());
-    if (clazz) {
-        jmethodID id = QJniObject::getCachedMethodID(env.jniEnv(), clazz, toBinaryEncClassName(className),
-                                         methodName, signature, true);
-        if (id) {
-            res = env->CallStaticObjectMethodV(clazz, id, args);
-            if (env.checkAndClearExceptions()) {
-                env->DeleteLocalRef(res);
-                res = nullptr;
-            }
-        }
-    }
-
-    QJniObject obj(res);
-    env->DeleteLocalRef(res);
-    return obj;
-}
-
-QJniObject QJniObject::callStaticObjectMethodV(jclass clazz,
-                                               const char *methodName,
-                                               const char *signature,
-                                               va_list args)
-{
-    QJniEnvironment env;
-    jmethodID id = getMethodID(env.jniEnv(), clazz, methodName, signature, true);
-    if (!id)
-        return QJniObject();
-
-    return getCleanJniObject(env->CallStaticObjectMethodV(clazz, id, args));
-}
-
 /*!
     \fn template <typename Ret, typename ...Args> auto QJniObject::callMethod(const char *methodName, const char *signature, Args &&...args) const
     \since 6.4
diff --git a/src/corelib/kernel/qjniobject.h b/src/corelib/kernel/qjniobject.h
index 56dfdabf..835052eb 100644
--- a/src/corelib/kernel/qjniobject.h
+++ b/src/corelib/kernel/qjniobject.h
@@ -436,14 +436,6 @@ private:
     void callVoidMethodV(JNIEnv *env, jmethodID id, ...) const;
     // ### Qt 7: merge into ... overload
     void callVoidMethodV(JNIEnv *env, jmethodID id, va_list args) const;
-    QJniObject callObjectMethodV(const char *methodName, const char *signature,
-                                 va_list args) const;
-
-    static QJniObject callStaticObjectMethodV(const char *className, const char *methodName,
-                                              const char *signature, va_list args);
-
-    static QJniObject callStaticObjectMethodV(jclass clazz, const char *methodName,
-                                              const char *signature, va_list args);
 
     bool isSameObject(jobject obj) const;
     bool isSameObject(const QJniObject &other) const;
diff --git a/src/corelib/kernel/qmetacontainer.h b/src/corelib/kernel/qmetacontainer.h
index 56415f4d..67c0ddcf 100644
--- a/src/corelib/kernel/qmetacontainer.h
+++ b/src/corelib/kernel/qmetacontainer.h
@@ -984,6 +984,8 @@ public:
         return a.d() != b.d();
     }
 
+    const QtMetaContainerPrivate::QMetaSequenceInterface *iface() const { return d(); }
+
 private:
     template<typename T>
     struct MetaSequence
@@ -1178,6 +1180,8 @@ public:
         return a.d() != b.d();
     }
 
+    const QtMetaContainerPrivate::QMetaAssociationInterface *iface() const { return d(); }
+
 private:
     template<typename T>
     struct MetaAssociation
diff --git a/src/corelib/kernel/qmetaobject.cpp b/src/corelib/kernel/qmetaobject.cpp
index 3f628362..188f4da5 100644
--- a/src/corelib/kernel/qmetaobject.cpp
+++ b/src/corelib/kernel/qmetaobject.cpp
@@ -97,12 +97,17 @@ using namespace Qt::StringLiterals;
 
     \internal
 
-    \value InvokeSlot
-    \value EmitSignal
+    \value InvokeMetaMethod
     \value ReadProperty
     \value WriteProperty
     \value ResetProperty
     \value CreateInstance
+    \value IndexOfMethod
+    \value RegisterPropertyMetaType
+    \value RegisterMethodArgumentMetaType
+    \value BindableProperty
+    \value CustomCall
+    \value ConstructInPlace
 */
 
 /*!
@@ -414,10 +419,30 @@ QMetaType QMetaObject::metaType() const
         return QMetaType::fromName(className());
     } else {
         /* in the metatype array, we store
-         idx: 0                      propertyCount - 1           propertyCount
-         data:QMetaType(prop0), ..., QMetaType(propPropCount-1), QMetaType(class),...
-         */
-        auto iface = this->d.metaTypes[d->propertyCount];
+
+         | index                               | data                           |
+         |----------------------------------------------------------------------|
+         | 0                                   | QMetaType(property0)           |
+         | ...                                 | ...                            |
+         | propertyCount - 1                   | QMetaType(propertyCount - 1)   |
+         | propertyCount                       | QMetaType(enumerator0)         |
+         | ...                                 | ...                            |
+         | propertyCount + enumeratorCount - 1 | QMetaType(enumeratorCount - 1) |
+         | propertyCount + enumeratorCount     | QMetaType(class)               |
+
+        */
+#if QT_VERSION < QT_VERSION_CHECK(7, 0, 0)
+        // Before revision 12 we only stored metatypes for enums if they showed
+        // up as types of properties or method arguments or return values.
+        // From revision 12 on, we always store them in a predictable place.
+        const qsizetype offset = d->revision < 12
+                ? d->propertyCount
+                : d->propertyCount + d->enumeratorCount;
+#else
+        const qsizetype offset = d->propertyCount + d->enumeratorCount;
+#endif
+
+        auto iface = this->d.metaTypes[offset];
         if (iface && QtMetaTypePrivate::isInterfaceFor<void>(iface))
             return QMetaType(); // return invalid meta-type for namespaces
         if (iface)
@@ -1042,7 +1067,7 @@ int QMetaObject::indexOfEnumerator(const char *name) const
         for (int i = 0; i < d->enumeratorCount; ++i) {
             const QMetaEnum e(m, i);
             const char *prop = rawStringData(m, e.data.name());
-            if (name[0] == prop[0] && strcmp(name + 1, prop + 1) == 0) {
+            if (strcmp(name, prop) == 0) {
                 i += m->enumeratorOffset();
                 return i;
             }
@@ -1056,7 +1081,7 @@ int QMetaObject::indexOfEnumerator(const char *name) const
         for (int i = 0; i < d->enumeratorCount; ++i) {
             const QMetaEnum e(m, i);
             const char *prop = rawStringData(m, e.data.alias());
-            if (name[0] == prop[0] && strcmp(name + 1, prop + 1) == 0) {
+            if (strcmp(name, prop) == 0) {
                 i += m->enumeratorOffset();
                 return i;
             }
@@ -1080,7 +1105,7 @@ int QMetaObject::indexOfProperty(const char *name) const
         for (int i = 0; i < d->propertyCount; ++i) {
             const QMetaProperty::Data data = QMetaProperty::getMetaPropertyData(m, i);
             const char *prop = rawStringData(m, data.name());
-            if (name[0] == prop[0] && strcmp(name + 1, prop + 1) == 0) {
+            if (strcmp(name, prop) == 0) {
                 i += m->propertyOffset();
                 return i;
             }
@@ -1692,31 +1717,19 @@ bool QMetaObject::invokeMethodImpl(QObject *object, QtPrivate::QSlotObjectBase *
 */
 
 /*!
-    \fn  template<typename Functor, typename FunctorReturnType> bool QMetaObject::invokeMethod(QObject *context, Functor function, Qt::ConnectionType type, FunctorReturnType *ret)
+    \fn  template<typename Functor, typename FunctorReturnType> bool QMetaObject::invokeMethod(QObject *context, Functor &&function, Qt::ConnectionType type, FunctorReturnType *ret)
+    \fn  template<typename Functor, typename FunctorReturnType> bool QMetaObject::invokeMethod(QObject *context, Functor &&function, FunctorReturnType *ret)
 
     \since 5.10
-
     \threadsafe
-    \overload
 
     Invokes the \a function in the event loop of \a context. \a function can be a functor
     or a pointer to a member function. Returns \c true if the function could be invoked.
     Returns \c false if there is no such function or the parameters did not match.
     The return value of the function call is placed in \a ret.
-*/
 
-/*!
-    \fn  template<typename Functor, typename FunctorReturnType> bool QMetaObject::invokeMethod(QObject *context, Functor function, FunctorReturnType *ret)
-
-    \since 5.10
-
-    \threadsafe
-    \overload
-
-    Invokes the \a function in the event loop of \a context using the connection type Qt::AutoConnection.
-    \a function can be a functor or a pointer to a member function. Returns \c true if the function could
-    be invoked. Returns \c false if there is no such member or the parameters did not match.
-    The return value of the function call is placed in \a ret.
+    If \a type is set, then the function is invoked using that connection type. Otherwise,
+    Qt::AutoConnection will be used.
 */
 
 /*!
@@ -3013,7 +3026,7 @@ const char *QMetaEnum::name() const
     Returns the enum name of the flag (without the scope).
 
     For example, the Qt::AlignmentFlag flag has \c
-    AlignmentFlag as the enum name, but \c Alignment as as the type name.
+    AlignmentFlag as the enum name, but \c Alignment as the type name.
     Non flag enums has the same type and enum names.
 
     Enum names have the same scope as the type name.
@@ -3028,6 +3041,33 @@ const char *QMetaEnum::enumName() const
     return rawStringData(mobj, data.alias());
 }
 
+/*!
+    Returns the meta type of the enum.
+
+    If the QMetaObject this enum is part of was generated with Qt 6.5 or
+    earlier this will be the invalid metatype.
+
+    \note This is the meta type of the enum itself, not of its underlying
+    numeric type. You can retrieve the meta type of the underlying type of the
+    enum using \l{QMetaType::underlyingType()}.
+
+    \since 6.6
+    \sa QMetaType::underlyingType()
+*/
+QMetaType QMetaEnum::metaType() const
+{
+    if (!mobj)
+        return {};
+
+    const QMetaObjectPrivate *p = priv(mobj->d.data);
+#if QT_VERSION < QT_VERSION_CHECK(7, 0, 0)
+    if (p->revision < 12)
+        QMetaType();
+#endif
+
+    return QMetaType(mobj->d.metaTypes[data.index(mobj) + p->propertyCount]);
+}
+
 /*!
     Returns the number of keys.
 
@@ -3277,6 +3317,11 @@ QMetaEnum::QMetaEnum(const QMetaObject *mobj, int index)
     Q_ASSERT(index >= 0 && index < priv(mobj->d.data)->enumeratorCount);
 }
 
+int QMetaEnum::Data::index(const QMetaObject *mobj) const
+{
+    return (d - mobj->d.data - priv(mobj->d.data)->enumeratorData) / Size;
+}
+
 /*!
     \fn QMetaEnum QMetaEnum::fromType()
     \since 5.5
@@ -3616,31 +3661,43 @@ QVariant QMetaProperty::read(const QObject *object) const
     Writes \a value as the property's value to the given \a object. Returns
     true if the write succeeded; otherwise returns \c false.
 
-    If \a value is not of the same type type as the property, a conversion
+    If \a value is not of the same type as the property, a conversion
     is attempted. An empty QVariant() is equivalent to a call to reset()
     if this property is resettable, or setting a default-constructed object
     otherwise.
 
+    \note This function internally makes a copy of \a value. Prefer to use the
+    rvalue overload when possible.
+
     \sa read(), reset(), isWritable()
 */
 bool QMetaProperty::write(QObject *object, const QVariant &value) const
 {
     if (!object || !isWritable())
         return false;
+    return write(object, QVariant(value));
+}
 
-    QVariant v = value;
+/*!
+    \overload
+    \since 6.6
+*/
+bool QMetaProperty::write(QObject *object, QVariant &&v) const
+{
+    if (!object || !isWritable())
+        return false;
     QMetaType t(mobj->d.metaTypes[data.index(mobj)]);
     if (t != QMetaType::fromType<QVariant>() && t != v.metaType()) {
         if (isEnumType() && !t.metaObject() && v.metaType().id() == QMetaType::QString) {
             // Assigning a string to a property of type Q_ENUMS (instead of Q_ENUM)
             bool ok;
             if (isFlagType())
-                v = QVariant(menum.keysToValue(value.toByteArray(), &ok));
+                v = QVariant(menum.keysToValue(v.toByteArray(), &ok));
             else
-                v = QVariant(menum.keyToValue(value.toByteArray(), &ok));
+                v = QVariant(menum.keyToValue(v.toByteArray(), &ok));
             if (!ok)
                 return false;
-        } else if (!value.isValid()) {
+        } else if (!v.isValid()) {
             if (isResettable())
                 return reset(object);
             v = QVariant(t, nullptr);
@@ -3734,6 +3791,16 @@ bool QMetaProperty::writeOnGadget(void *gadget, const QVariant &value) const
     return write(reinterpret_cast<QObject*>(gadget), value);
 }
 
+/*!
+    \overload
+    \since 6.6
+*/
+bool QMetaProperty::writeOnGadget(void *gadget, QVariant &&value) const
+{
+    Q_ASSERT(priv(mobj->d.data)->flags & PropertyAccessInStaticMetaCall && mobj->d.static_metacall);
+    return write(reinterpret_cast<QObject*>(gadget), std::move(value));
+}
+
 /*!
     \since 5.5
 
diff --git a/src/corelib/kernel/qmetaobject.h b/src/corelib/kernel/qmetaobject.h
index 3aa3a687..c51922e6 100644
--- a/src/corelib/kernel/qmetaobject.h
+++ b/src/corelib/kernel/qmetaobject.h
@@ -265,6 +265,8 @@ public:
 
     const char *name() const;
     const char *enumName() const;
+    QMetaType metaType() const;
+
     bool isFlag() const;
     bool isScoped() const;
 
@@ -302,6 +304,7 @@ private:
         quint32 flags() const { return d[2]; }
         qint32 keyCount() const { return static_cast<qint32>(d[3]); }
         quint32 data() const { return d[4]; }
+        int index(const QMetaObject *mobj) const;
 
         const uint *d;
     };
@@ -360,12 +363,14 @@ public:
 
     QVariant read(const QObject *obj) const;
     bool write(QObject *obj, const QVariant &value) const;
+    bool write(QObject *obj, QVariant &&value) const;
     bool reset(QObject *obj) const;
 
     QUntypedBindable bindable(QObject *object) const;
 
     QVariant readOnGadget(const void *gadget) const;
     bool writeOnGadget(void *gadget, const QVariant &value) const;
+    bool writeOnGadget(void *gadget, QVariant &&value) const;
     bool resetOnGadget(void *gadget) const;
 
     bool hasStdCppSet() const;
diff --git a/src/corelib/kernel/qmetaobject_p.h b/src/corelib/kernel/qmetaobject_p.h
index d05b727f..224c9d53 100644
--- a/src/corelib/kernel/qmetaobject_p.h
+++ b/src/corelib/kernel/qmetaobject_p.h
@@ -175,7 +175,8 @@ struct QMetaObjectPrivate
     // revision 10 is Qt 6.2: The metatype of the metaobject is stored in the metatypes array
     //                        and metamethods store a flag stating whether they are const
     // revision 11 is Qt 6.5: The metatype for void is stored in the metatypes array
-    enum { OutputRevision = 11 }; // Used by moc, qmetaobjectbuilder and qdbus
+    // revision 12 is Qt 6.6: It adds the metatype for enums
+    enum { OutputRevision = 12 }; // Used by moc, qmetaobjectbuilder and qdbus
     enum { IntsPerMethod = QMetaMethod::Data::Size };
     enum { IntsPerEnum = QMetaEnum::Data::Size };
     enum { IntsPerProperty = QMetaProperty::Data::Size };
diff --git a/src/corelib/kernel/qmetaobjectbuilder.cpp b/src/corelib/kernel/qmetaobjectbuilder.cpp
index e61065f4..b471bf65 100644
--- a/src/corelib/kernel/qmetaobjectbuilder.cpp
+++ b/src/corelib/kernel/qmetaobjectbuilder.cpp
@@ -159,6 +159,7 @@ public:
 
     QByteArray name;
     QByteArray enumName;
+    QMetaType metaType;
     bool isFlag;
     bool isScoped;
     QList<QByteArray> keys;
@@ -597,6 +598,7 @@ QMetaEnumBuilder QMetaObjectBuilder::addEnumerator(const QMetaEnum &prototype)
 {
     QMetaEnumBuilder en = addEnumerator(prototype.name());
     en.setEnumName(prototype.enumName());
+    en.setMetaType(prototype.metaType());
     en.setIsFlag(prototype.isFlag());
     en.setIsScoped(prototype.isScoped());
     int count = prototype.keyCount();
@@ -1170,7 +1172,7 @@ static int buildMetaObject(QMetaObjectBuilderPrivate *d, char *buf,
             - int(d->methods.size())       // return "parameters" don't have names
             - int(d->constructors.size()); // "this" parameters don't have names
     if constexpr (mode == Construct) {
-        static_assert(QMetaObjectPrivate::OutputRevision == 11, "QMetaObjectBuilder should generate the same version as moc");
+        static_assert(QMetaObjectPrivate::OutputRevision == 12, "QMetaObjectBuilder should generate the same version as moc");
         pmeta->revision = QMetaObjectPrivate::OutputRevision;
         pmeta->flags = d->flags.toInt();
         pmeta->className = 0;   // Class name is always the first string.
@@ -2305,6 +2307,31 @@ void QMetaEnumBuilder::setEnumName(const QByteArray &alias)
         d->enumName = alias;
 }
 
+/*!
+    Returns the meta type of the enumerator.
+
+    \since 6.6
+*/
+QMetaType QMetaEnumBuilder::metaType() const
+{
+    if (QMetaEnumBuilderPrivate *d = d_func())
+        return d->metaType;
+    return QMetaType();
+}
+
+/*!
+    Sets this enumerator to have the given \c metaType.
+
+    \since 6.6
+    \sa metaType()
+*/
+void QMetaEnumBuilder::setMetaType(QMetaType metaType)
+{
+    QMetaEnumBuilderPrivate *d = d_func();
+    if (d)
+        d->metaType = metaType;
+}
+
 /*!
     Returns \c true if this enumerator is used as a flag; otherwise returns
     false.
diff --git a/src/corelib/kernel/qmetaobjectbuilder_p.h b/src/corelib/kernel/qmetaobjectbuilder_p.h
index 99eaca2a..b5248798 100644
--- a/src/corelib/kernel/qmetaobjectbuilder_p.h
+++ b/src/corelib/kernel/qmetaobjectbuilder_p.h
@@ -258,6 +258,9 @@ public:
     QByteArray enumName() const;
     void setEnumName(const QByteArray &alias);
 
+    QMetaType metaType() const;
+    void setMetaType(QMetaType metaType);
+
     bool isFlag() const;
     void setIsFlag(bool value);
 
diff --git a/src/corelib/kernel/qmetatype.cpp b/src/corelib/kernel/qmetatype.cpp
index 44567d56..5f42bc00 100644
--- a/src/corelib/kernel/qmetatype.cpp
+++ b/src/corelib/kernel/qmetatype.cpp
@@ -460,7 +460,7 @@ const char *QtMetaTypePrivate::typedefNameForType(const QtPrivate::QMetaTypeInte
     \value IsPointer This type is a pointer to another type.
     \omitvalue WeakPointerToQObject
     \omitvalue TrackingPointerToQObject
-    \omitvalue IsGadget \omit This type is a Q_GADGET and it's corresponding QMetaObject can be accessed with QMetaType::metaObject Since 5.5. \endomit
+    \omitvalue IsGadget \omit (since Qt 5.5) This type is a Q_GADGET and its corresponding QMetaObject can be accessed with QMetaType::metaObject. \endomit
     \omitvalue PointerToGadget
     \omitvalue IsQmlList
     \value IsConst Indicates that values of this type are immutable; for instance, because they are pointers to const objects.
@@ -1258,26 +1258,26 @@ static const struct : QMetaTypeModuleHelper
 
         QMETATYPE_CONVERTER(QByteArrayList, QVariantList,
             result.reserve(source.size());
-            for (auto v: source)
+            for (const auto &v: source)
                 result.append(v.toByteArray());
             return true;
         );
         QMETATYPE_CONVERTER(QVariantList, QByteArrayList,
             result.reserve(source.size());
-            for (auto v: source)
+            for (const auto &v: source)
                 result.append(QVariant(v));
             return true;
         );
 
         QMETATYPE_CONVERTER(QStringList, QVariantList,
             result.reserve(source.size());
-            for (auto v: source)
+            for (const auto &v: source)
                 result.append(v.toString());
             return true;
         );
         QMETATYPE_CONVERTER(QVariantList, QStringList,
             result.reserve(source.size());
-            for (auto v: source)
+            for (const auto &v: source)
                 result.append(QVariant(v));
             return true;
         );
@@ -1965,13 +1965,13 @@ static bool convertFromEnum(QMetaType fromType, const void *from, QMetaType toTy
     QMetaEnum en = metaEnumFromType(fromType);
     if (en.isValid()) {
         if (en.isFlag()) {
-            const QByteArray keys = en.valueToKeys(ll);
+            const QByteArray keys = en.valueToKeys(static_cast<int>(ll));
             if (toType.id() == QMetaType::QString)
                 *static_cast<QString *>(to) = QString::fromUtf8(keys);
             else
                 *static_cast<QByteArray *>(to) = keys;
         } else {
-            const char *key = en.valueToKey(ll);
+            const char *key = en.valueToKey(static_cast<int>(ll));
             if (toType.id() == QMetaType::QString)
                 *static_cast<QString *>(to) = QString::fromUtf8(key);
             else
@@ -2900,6 +2900,59 @@ bool QMetaType::hasRegisteredDataStreamOperators() const
     return d_ptr && d_ptr->dataStreamIn != nullptr && d_ptr->dataStreamOut != nullptr;
 }
 
+/*!
+   \since 6.6
+
+   If this metatype represents an enumeration, this method returns a
+   metatype of a numeric class of the same signedness and size as the
+   enums underlying type.
+   If it represents a QFlags type, it returns QMetaType::Int.
+   In all other cases an invalid QMetaType is returned.
+ */
+QMetaType QMetaType::underlyingType() const
+{
+    if (!d_ptr || !(flags() & IsEnumeration))
+        return {};
+    /* QFlags has enumeration set so that's handled here (qint32
+       case), as QFlags uses int as the underlying type
+       Note that we do some approximation here, as we cannot
+       differentiate between different underlying types of the
+       same size and signedness (consider char <-> (un)signed char,
+       int <-> long <-> long long).
+
+       ### TODO PENDING: QTBUG-111926 - QFlags supporting >32 bit int
+    */
+    if (flags() & IsUnsignedEnumeration) {
+        switch (sizeOf()) {
+        case 1:
+            return QMetaType::fromType<quint8>();
+        case 2:
+            return QMetaType::fromType<quint16>();
+        case 4:
+            return QMetaType::fromType<quint32>();
+        case 8:
+            return QMetaType::fromType<quint64>();
+        default:
+            break;
+        }
+    } else {
+        switch (sizeOf()) {
+        case 1:
+            return QMetaType::fromType<qint8>();
+        case 2:
+            return QMetaType::fromType<qint16>();
+        case 4:
+            return QMetaType::fromType<qint32>();
+        case 8:
+            return QMetaType::fromType<qint64>();
+        default:
+            break;
+        }
+    }
+    // int128 can be handled above once we have qint128
+    return QMetaType();
+}
+
 /*!
    \fn bool QMetaType::load(QDataStream &stream, int type, void *data)
    \overload
@@ -3167,6 +3220,7 @@ QT_FOR_EACH_STATIC_PRIMITIVE_POINTER(QT_METATYPE_DECLARE_TEMPLATE_ITER)
 QT_FOR_EACH_STATIC_CORE_CLASS(QT_METATYPE_DECLARE_TEMPLATE_ITER)
 QT_FOR_EACH_STATIC_CORE_POINTER(QT_METATYPE_DECLARE_TEMPLATE_ITER)
 QT_FOR_EACH_STATIC_CORE_TEMPLATE(QT_METATYPE_DECLARE_TEMPLATE_ITER)
+
 #undef QT_METATYPE_DECLARE_TEMPLATE_ITER
 #endif
 }
diff --git a/src/corelib/kernel/qmetatype.h b/src/corelib/kernel/qmetatype.h
index a641313c..02ecaf98 100644
--- a/src/corelib/kernel/qmetatype.h
+++ b/src/corelib/kernel/qmetatype.h
@@ -492,6 +492,8 @@ public:
 #endif
 #endif
 
+    QMetaType underlyingType() const;
+
     template<typename T>
     constexpr static QMetaType fromType();
     static QMetaType fromName(QByteArrayView name);
@@ -1268,7 +1270,7 @@ namespace QtPrivate {
                      | (IsEnumOrFlags<T>::value ? QMetaType::IsEnumeration : 0)
                      | (IsGadgetHelper<T>::IsGadgetOrDerivedFrom ? QMetaType::IsGadget : 0)
                      | (IsPointerToGadgetHelper<T>::IsGadgetOrDerivedFrom ? QMetaType::PointerToGadget : 0)
-                     | (QTypeInfo<T>::isPointer ? QMetaType::IsPointer : 0)
+                     | (std::is_pointer_v<T> ? QMetaType::IsPointer : 0)
                      | (IsUnsignedEnum<T> ? QMetaType::IsUnsignedEnumeration : 0)
                      | (IsQmlListType<T> ? QMetaType::IsQmlList : 0)
                      | (std::is_const_v<std::remove_pointer_t<T>> ? QMetaType::IsConst : 0)
diff --git a/src/corelib/kernel/qmetatype_p.h b/src/corelib/kernel/qmetatype_p.h
index e6493948..71a225d5 100644
--- a/src/corelib/kernel/qmetatype_p.h
+++ b/src/corelib/kernel/qmetatype_p.h
@@ -178,6 +178,15 @@ inline void copyConstruct(const QtPrivate::QMetaTypeInterface *iface, void *wher
         memcpy(where, copy, iface->size);
 }
 
+inline void moveConstruct(const QtPrivate::QMetaTypeInterface *iface, void *where, void *copy)
+{
+    Q_ASSERT(isMoveConstructible(iface));
+    if (iface->moveCtr)
+        iface->moveCtr(iface, where, copy);
+    else
+        memcpy(where, copy, iface->size);
+}
+
 inline void construct(const QtPrivate::QMetaTypeInterface *iface, void *where, const void *copy)
 {
     if (copy)
diff --git a/src/corelib/kernel/qobject.cpp b/src/corelib/kernel/qobject.cpp
index c2a9dc34..7a96918f 100644
--- a/src/corelib/kernel/qobject.cpp
+++ b/src/corelib/kernel/qobject.cpp
@@ -28,7 +28,6 @@
 #if QT_CONFIG(thread)
 #include <qsemaphore.h>
 #endif
-#include <qsharedpointer.h>
 
 #include <private/qorderedmutexlocker_p.h>
 #include <private/qhooks_p.h>
@@ -370,16 +369,16 @@ void QObjectPrivate::ConnectionData::removeConnection(QObjectPrivate::Connection
         c->prevConnectionList->nextConnectionList.storeRelaxed(n);
     c->prevConnectionList = nullptr;
 
-    Q_ASSERT(c != orphaned.loadRelaxed());
+    Q_ASSERT(c != static_cast<Connection *>(orphaned.load(std::memory_order_relaxed)));
     // add c to orphanedConnections
-    Connection *o = nullptr;
+    TaggedSignalVector o = nullptr;
     /* No ABA issue here: When adding a node, we only care about the list head, it doesn't
      * matter if the tail changes.
      */
+    o = orphaned.load(std::memory_order_acquire);
     do {
-        o = orphaned.loadRelaxed();
         c->nextInOrphanList = o;
-    } while (!orphaned.testAndSetRelease(o, c));
+    } while (!orphaned.compare_exchange_strong(o, TaggedSignalVector(c), std::memory_order_release));
 
 #ifndef QT_NO_DEBUG
     found = false;
@@ -397,7 +396,7 @@ void QObjectPrivate::ConnectionData::removeConnection(QObjectPrivate::Connection
 void QObjectPrivate::ConnectionData::cleanOrphanedConnectionsImpl(QObject *sender, LockPolicy lockPolicy)
 {
     QBasicMutex *senderMutex = signalSlotLock(sender);
-    ConnectionOrSignalVector *c = nullptr;
+    TaggedSignalVector c = nullptr;
     {
         std::unique_lock<QBasicMutex> lock(*senderMutex, std::defer_lock_t{});
         if (lockPolicy == NeedToLock)
@@ -408,7 +407,7 @@ void QObjectPrivate::ConnectionData::cleanOrphanedConnectionsImpl(QObject *sende
         // Since ref == 1, no activate() is in process since we locked the mutex. That implies,
         // that nothing can reference the orphaned connection objects anymore and they can
         // be safely deleted
-        c = orphaned.fetchAndStoreRelaxed(nullptr);
+        c = orphaned.exchange(nullptr, std::memory_order_relaxed);
     }
     if (c) {
         // Deleting c might run arbitrary user code, so we must not hold the lock
@@ -422,11 +421,11 @@ void QObjectPrivate::ConnectionData::cleanOrphanedConnectionsImpl(QObject *sende
     }
 }
 
-inline void QObjectPrivate::ConnectionData::deleteOrphaned(QObjectPrivate::ConnectionOrSignalVector *o)
+inline void QObjectPrivate::ConnectionData::deleteOrphaned(TaggedSignalVector o)
 {
     while (o) {
-        QObjectPrivate::ConnectionOrSignalVector *next = nullptr;
-        if (SignalVector *v = ConnectionOrSignalVector::asSignalVector(o)) {
+        TaggedSignalVector next = nullptr;
+        if (SignalVector *v = static_cast<SignalVector *>(o)) {
             next = v->nextInOrphanList;
             free(v);
         } else {
@@ -1684,7 +1683,7 @@ void QObject::moveToThread(QThread *targetThread)
                  "Cannot move to target thread (%p)\n",
                  currentData->thread.loadRelaxed(), thisThreadData->thread.loadRelaxed(), targetData ? targetData->thread.loadRelaxed() : nullptr);
 
-#ifdef Q_OS_MAC
+#ifdef Q_OS_DARWIN
         qWarning("You might be loading two sets of Qt binaries into the same process. "
                  "Check that all plugins are compiled against the right Qt binaries. Export "
                  "DYLD_PRINT_LIBRARIES=1 and check that only one set of binaries are being loaded.");
@@ -1825,74 +1824,33 @@ void QObjectPrivate::_q_reregisterTimers(void *pointer)
 //
 
 /*!
-    Starts a timer and returns a timer identifier, or returns zero if
-    it could not start a timer.
+    \fn int QObject::startTimer(int interval, Qt::TimerType timerType)
 
-    A timer event will occur every \a interval milliseconds until
-    killTimer() is called. If \a interval is 0, then the timer event
-    occurs once every time there are no more window system events to
-    process.
-
-    The virtual timerEvent() function is called with the QTimerEvent
-    event parameter class when a timer event occurs. Reimplement this
-    function to get timer events.
-
-    If multiple timers are running, the QTimerEvent::timerId() can be
-    used to find out which timer was activated.
-
-    Example:
-
-    \snippet code/src_corelib_kernel_qobject.cpp 8
-
-    Note that QTimer's accuracy depends on the underlying operating system and
-    hardware. The \a timerType argument allows you to customize the accuracy of
-    the timer. See Qt::TimerType for information on the different timer types.
-    Most platforms support an accuracy of 20 milliseconds; some provide more.
-    If Qt is unable to deliver the requested number of timer events, it will
-    silently discard some.
-
-    The QTimer class provides a high-level programming interface with
-    single-shot timers and timer signals instead of events. There is
-    also a QBasicTimer class that is more lightweight than QTimer and
-    less clumsy than using timer IDs directly.
+    This is an overloaded function that will start a timer of type
+    \a timerType and a timeout of \a interval milliseconds. This is
+    equivalent to calling:
+    \code
+    startTimer(std::chrono::milliseconds{interval}, timerType);
+    \endcode
 
     \sa timerEvent(), killTimer(), QTimer::singleShot()
 */
 
 int QObject::startTimer(int interval, Qt::TimerType timerType)
 {
-    Q_D(QObject);
-
-    if (Q_UNLIKELY(interval < 0)) {
-        qWarning("QObject::startTimer: Timers cannot have negative intervals");
-        return 0;
-    }
-
-    auto thisThreadData = d->threadData.loadRelaxed();
-    if (Q_UNLIKELY(!thisThreadData->hasEventDispatcher())) {
-        qWarning("QObject::startTimer: Timers can only be used with threads started with QThread");
-        return 0;
-    }
-    if (Q_UNLIKELY(thread() != QThread::currentThread())) {
-        qWarning("QObject::startTimer: Timers cannot be started from another thread");
-        return 0;
-    }
-    int timerId = thisThreadData->eventDispatcher.loadRelaxed()->registerTimer(interval, timerType, this);
-    d->ensureExtraData();
-    d->extraData->runningTimers.append(timerId);
-    return timerId;
+    return startTimer(std::chrono::milliseconds{interval}, timerType);
 }
 
 /*!
     \since 5.9
     \overload
-    \fn int QObject::startTimer(std::chrono::milliseconds time, Qt::TimerType timerType)
+    \fn int QObject::startTimer(std::chrono::milliseconds interval, Qt::TimerType timerType)
 
     Starts a timer and returns a timer identifier, or returns zero if
     it could not start a timer.
 
-    A timer event will occur every \a time interval until killTimer()
-    is called. If \a time is equal to \c{std::chrono::duration::zero()},
+    A timer event will occur every \a interval until killTimer()
+    is called. If \a interval is equal to \c{std::chrono::duration::zero()},
     then the timer event occurs once every time there are no more window
     system events to process.
 
@@ -1921,6 +1879,33 @@ int QObject::startTimer(int interval, Qt::TimerType timerType)
 
     \sa timerEvent(), killTimer(), QTimer::singleShot()
 */
+int QObject::startTimer(std::chrono::milliseconds interval, Qt::TimerType timerType)
+{
+    Q_D(QObject);
+
+    using namespace std::chrono_literals;
+
+    if (Q_UNLIKELY(interval < 0ms)) {
+        qWarning("QObject::startTimer: Timers cannot have negative intervals");
+        return 0;
+    }
+
+    auto thisThreadData = d->threadData.loadRelaxed();
+    if (Q_UNLIKELY(!thisThreadData->hasEventDispatcher())) {
+        qWarning("QObject::startTimer: Timers can only be used with threads started with QThread");
+        return 0;
+    }
+    if (Q_UNLIKELY(thread() != QThread::currentThread())) {
+        qWarning("QObject::startTimer: Timers cannot be started from another thread");
+        return 0;
+    }
+
+    auto dispatcher = thisThreadData->eventDispatcher.loadRelaxed();
+    int timerId = dispatcher->registerTimer(interval.count(), timerType, this);
+    d->ensureExtraData();
+    d->extraData->runningTimers.append(timerId);
+    return timerId;
+}
 
 /*!
     Kills the timer with timer identifier, \a id.
@@ -3825,7 +3810,7 @@ struct SlotObjectGuard {
     SlotObjectGuard() = default;
     // move would be fine, but we do not need it currently
     Q_DISABLE_COPY_MOVE(SlotObjectGuard)
-    explicit SlotObjectGuard(QtPrivate::QSlotObjectBase *slotObject)
+    Q_NODISCARD_CTOR explicit SlotObjectGuard(QtPrivate::QSlotObjectBase *slotObject)
         : m_slotObject(slotObject)
     {
         if (m_slotObject)
@@ -4153,6 +4138,8 @@ int QObjectPrivate::signalIndex(const char *signalName,
  *****************************************************************************/
 
 /*!
+  \fn bool QObject::setProperty(const char *name, const QVariant &value)
+
   Sets the value of the object's \a name property to \a value.
 
   If the property is defined in the class using Q_PROPERTY then
@@ -4173,9 +4160,17 @@ int QObjectPrivate::signalIndex(const char *signalName,
 
   \sa property(), metaObject(), dynamicPropertyNames(), QMetaProperty::write()
 */
-bool QObject::setProperty(const char *name, const QVariant &value)
+
+/*!
+  \fn bool QObject::setProperty(const char *name, QVariant &&value)
+  \since 6.6
+  \overload setProperty
+*/
+
+bool QObject::doSetProperty(const char *name, const QVariant *lvalue, QVariant *rvalue)
 {
     Q_D(QObject);
+    const auto &value =*lvalue;
     const QMetaObject *meta = metaObject();
     if (!name || !meta)
         return false;
@@ -4194,12 +4189,18 @@ bool QObject::setProperty(const char *name, const QVariant &value)
         } else {
             if (idx == -1) {
                 d->extraData->propertyNames.append(name);
-                d->extraData->propertyValues.append(value);
+                if (rvalue)
+                    d->extraData->propertyValues.append(std::move(*rvalue));
+                else
+                    d->extraData->propertyValues.append(*lvalue);
             } else {
                 if (value.userType() == d->extraData->propertyValues.at(idx).userType()
                         && value == d->extraData->propertyValues.at(idx))
                     return false;
-                d->extraData->propertyValues[idx] = value;
+                if (rvalue)
+                    d->extraData->propertyValues[idx] = std::move(*rvalue);
+                else
+                    d->extraData->propertyValues[idx] = *lvalue;
             }
         }
 
@@ -4214,7 +4215,7 @@ bool QObject::setProperty(const char *name, const QVariant &value)
         qWarning("%s::setProperty: Property \"%s\" invalid,"
                  " read-only or does not exist", metaObject()->className(), name);
 #endif
-    return p.write(this, value);
+    return rvalue ? p.write(this, std::move(*rvalue)) : p.write(this, *lvalue);
 }
 
 /*!
diff --git a/src/corelib/kernel/qobject.h b/src/corelib/kernel/qobject.h
index 07552957..f6a3ebc5 100644
--- a/src/corelib/kernel/qobject.h
+++ b/src/corelib/kernel/qobject.h
@@ -126,11 +126,7 @@ public:
     void moveToThread(QThread *thread);
 
     int startTimer(int interval, Qt::TimerType timerType = Qt::CoarseTimer);
-    Q_ALWAYS_INLINE
-    int startTimer(std::chrono::milliseconds time, Qt::TimerType timerType = Qt::CoarseTimer)
-    {
-        return startTimer(int(time.count()), timerType);
-    }
+    int startTimer(std::chrono::milliseconds time, Qt::TimerType timerType = Qt::CoarseTimer);
     void killTimer(int id);
 
     template<typename T>
@@ -196,14 +192,28 @@ public:
     template<typename PointerToMemberFunction, typename Functor>
     static QMetaObject::Connection connect(const QObject *sender, PointerToMemberFunction signal, const QObject *context, Functor functor, Qt::ConnectionType type = Qt::AutoConnection);
 #else
-    //Connect a signal to a pointer to qobject member function
+    //connect with context
     template <typename Func1, typename Func2>
-    static inline QMetaObject::Connection connect(const typename QtPrivate::FunctionPointer<Func1>::Object *sender, Func1 signal,
-                                     const typename QtPrivate::FunctionPointer<Func2>::Object *receiver, Func2 slot,
-                                     Qt::ConnectionType type = Qt::AutoConnection)
+    static inline QMetaObject::Connection
+        connect(const typename QtPrivate::FunctionPointer<Func1>::Object *sender, Func1 signal,
+                const typename QtPrivate::ContextTypeForFunctor<Func2>::ContextType *context, Func2 &&slot,
+                Qt::ConnectionType type = Qt::AutoConnection)
     {
         typedef QtPrivate::FunctionPointer<Func1> SignalType;
-        typedef QtPrivate::FunctionPointer<Func2> SlotType;
+        typedef QtPrivate::FunctionPointer<std::decay_t<Func2>> SlotType;
+
+        if constexpr (SlotType::ArgumentCount != -1) {
+            static_assert((QtPrivate::AreArgumentsCompatible<typename SlotType::ReturnType, typename SignalType::ReturnType>::value),
+                            "Return type of the slot is not compatible with the return type of the signal.");
+        } else {
+            constexpr int FunctorArgumentCount = QtPrivate::ComputeFunctorArgumentCount<std::decay_t<Func2>, typename SignalType::Arguments>::Value;
+            [[maybe_unused]]
+            constexpr int SlotArgumentCount = (FunctorArgumentCount >= 0) ? FunctorArgumentCount : 0;
+            typedef typename QtPrivate::FunctorReturnType<std::decay_t<Func2>, typename QtPrivate::List_Left<typename SignalType::Arguments, SlotArgumentCount>::Value>::Value SlotReturnType;
+
+            static_assert((QtPrivate::AreArgumentsCompatible<SlotReturnType, typename SignalType::ReturnType>::value),
+                            "Return type of the slot is not compatible with the return type of the signal.");
+        }
 
         static_assert(QtPrivate::HasQ_OBJECT_Macro<typename SignalType::Object>::Value,
                           "No Q_OBJECT in the class with the signal");
@@ -211,105 +221,26 @@ public:
         //compilation error if the arguments does not match.
         static_assert(int(SignalType::ArgumentCount) >= int(SlotType::ArgumentCount),
                           "The slot requires more arguments than the signal provides.");
-        static_assert((QtPrivate::CheckCompatibleArguments<typename SignalType::Arguments, typename SlotType::Arguments>::value),
-                          "Signal and slot arguments are not compatible.");
-        static_assert((QtPrivate::AreArgumentsCompatible<typename SlotType::ReturnType, typename SignalType::ReturnType>::value),
-                          "Return type of the slot is not compatible with the return type of the signal.");
 
         const int *types = nullptr;
         if (type == Qt::QueuedConnection || type == Qt::BlockingQueuedConnection)
             types = QtPrivate::ConnectionTypes<typename SignalType::Arguments>::types();
 
-        return connectImpl(sender, reinterpret_cast<void **>(&signal),
-                           receiver, reinterpret_cast<void **>(&slot),
-                           new QtPrivate::QSlotObject<Func2, typename QtPrivate::List_Left<typename SignalType::Arguments, SlotType::ArgumentCount>::Value,
-                                           typename SignalType::ReturnType>(slot),
-                            type, types, &SignalType::Object::staticMetaObject);
-    }
+        void **pSlot = nullptr;
+        if constexpr (std::is_member_function_pointer_v<std::decay_t<Func2>>)
+            pSlot = const_cast<void **>(reinterpret_cast<void *const *>(&slot));
 
-    //connect to a function pointer  (not a member)
-    template <typename Func1, typename Func2>
-    static inline typename std::enable_if<int(QtPrivate::FunctionPointer<Func2>::ArgumentCount) >= 0, QMetaObject::Connection>::type
-            connect(const typename QtPrivate::FunctionPointer<Func1>::Object *sender, Func1 signal, Func2 slot)
-    {
-        return connect(sender, signal, sender, slot, Qt::DirectConnection);
-    }
-
-    //connect to a function pointer  (not a member)
-    template <typename Func1, typename Func2>
-    static inline typename std::enable_if<int(QtPrivate::FunctionPointer<Func2>::ArgumentCount) >= 0 &&
-                                          !QtPrivate::FunctionPointer<Func2>::IsPointerToMemberFunction, QMetaObject::Connection>::type
-            connect(const typename QtPrivate::FunctionPointer<Func1>::Object *sender, Func1 signal, const QObject *context, Func2 slot,
-                    Qt::ConnectionType type = Qt::AutoConnection)
-    {
-        typedef QtPrivate::FunctionPointer<Func1> SignalType;
-        typedef QtPrivate::FunctionPointer<Func2> SlotType;
-
-        static_assert(QtPrivate::HasQ_OBJECT_Macro<typename SignalType::Object>::Value,
-                          "No Q_OBJECT in the class with the signal");
-
-        //compilation error if the arguments does not match.
-        static_assert(int(SignalType::ArgumentCount) >= int(SlotType::ArgumentCount),
-                          "The slot requires more arguments than the signal provides.");
-        static_assert((QtPrivate::CheckCompatibleArguments<typename SignalType::Arguments, typename SlotType::Arguments>::value),
-                          "Signal and slot arguments are not compatible.");
-        static_assert((QtPrivate::AreArgumentsCompatible<typename SlotType::ReturnType, typename SignalType::ReturnType>::value),
-                          "Return type of the slot is not compatible with the return type of the signal.");
-
-        const int *types = nullptr;
-        if (type == Qt::QueuedConnection || type == Qt::BlockingQueuedConnection)
-            types = QtPrivate::ConnectionTypes<typename SignalType::Arguments>::types();
-
-        return connectImpl(sender, reinterpret_cast<void **>(&signal), context, nullptr,
-                           new QtPrivate::QStaticSlotObject<Func2,
-                                                 typename QtPrivate::List_Left<typename SignalType::Arguments, SlotType::ArgumentCount>::Value,
-                                                 typename SignalType::ReturnType>(slot),
+        return connectImpl(sender, reinterpret_cast<void **>(&signal), context, pSlot,
+                           QtPrivate::makeCallableObject<Func1>(std::forward<Func2>(slot)),
                            type, types, &SignalType::Object::staticMetaObject);
     }
 
-    //connect to a functor
+    //connect without context
     template <typename Func1, typename Func2>
-    static inline typename std::enable_if<
-        QtPrivate::FunctionPointer<Func2>::ArgumentCount == -1 &&
-        !std::is_convertible_v<Func2, const char*>, // don't match old-style connect
-    QMetaObject::Connection>::type
-            connect(const typename QtPrivate::FunctionPointer<Func1>::Object *sender, Func1 signal, Func2 slot)
+    static inline QMetaObject::Connection
+        connect(const typename QtPrivate::FunctionPointer<Func1>::Object *sender, Func1 signal, Func2 &&slot)
     {
-        return connect(sender, signal, sender, std::move(slot), Qt::DirectConnection);
-    }
-
-    //connect to a functor, with a "context" object defining in which event loop is going to be executed
-    template <typename Func1, typename Func2>
-    static inline typename std::enable_if<
-        QtPrivate::FunctionPointer<Func2>::ArgumentCount == -1 &&
-        !std::is_convertible_v<Func2, const char*>, // don't match old-style connect
-    QMetaObject::Connection>::type
-            connect(const typename QtPrivate::FunctionPointer<Func1>::Object *sender, Func1 signal, const QObject *context, Func2 slot,
-                    Qt::ConnectionType type = Qt::AutoConnection)
-    {
-        typedef QtPrivate::FunctionPointer<Func1> SignalType;
-        const int FunctorArgumentCount = QtPrivate::ComputeFunctorArgumentCount<Func2 , typename SignalType::Arguments>::Value;
-
-        static_assert((FunctorArgumentCount >= 0),
-                          "Signal and slot arguments are not compatible.");
-        const int SlotArgumentCount = (FunctorArgumentCount >= 0) ? FunctorArgumentCount : 0;
-        typedef typename QtPrivate::FunctorReturnType<Func2, typename QtPrivate::List_Left<typename SignalType::Arguments, SlotArgumentCount>::Value>::Value SlotReturnType;
-
-        static_assert((QtPrivate::AreArgumentsCompatible<SlotReturnType, typename SignalType::ReturnType>::value),
-                          "Return type of the slot is not compatible with the return type of the signal.");
-
-        static_assert(QtPrivate::HasQ_OBJECT_Macro<typename SignalType::Object>::Value,
-                          "No Q_OBJECT in the class with the signal");
-
-        const int *types = nullptr;
-        if (type == Qt::QueuedConnection || type == Qt::BlockingQueuedConnection)
-            types = QtPrivate::ConnectionTypes<typename SignalType::Arguments>::types();
-
-        return connectImpl(sender, reinterpret_cast<void **>(&signal), context, nullptr,
-                           new QtPrivate::QFunctorSlotObject<Func2, SlotArgumentCount,
-                                typename QtPrivate::List_Left<typename SignalType::Arguments, SlotArgumentCount>::Value,
-                                typename SignalType::ReturnType>(std::move(slot)),
-                           type, types, &SignalType::Object::staticMetaObject);
+        return connect(sender, signal, sender, std::forward<Func2>(slot), Qt::DirectConnection);
     }
 #endif //Q_QDOC
 
@@ -362,7 +293,9 @@ public:
     void dumpObjectTree() const;
     void dumpObjectInfo() const;
 
+    QT_CORE_INLINE_SINCE(6, 6)
     bool setProperty(const char *name, const QVariant &value);
+    inline bool setProperty(const char *name, QVariant &&value);
     QVariant property(const char *name) const;
     QList<QByteArray> dynamicPropertyNames() const;
     QBindingStorage *bindingStorage() { return &d_ptr->bindingStorage; }
@@ -415,6 +348,8 @@ protected:
 
 private:
     void doSetObjectName(const QString &name);
+    bool doSetProperty(const char *name, const QVariant *lvalue, QVariant *rvalue);
+
     Q_DISABLE_COPY(QObject)
     Q_PRIVATE_SLOT(d_func(), void _q_reregisterTimers(void *))
 
@@ -433,6 +368,17 @@ inline QMetaObject::Connection QObject::connect(const QObject *asender, const ch
                                             const char *amember, Qt::ConnectionType atype) const
 { return connect(asender, asignal, this, amember, atype); }
 
+#if QT_CORE_INLINE_IMPL_SINCE(6, 6)
+bool QObject::setProperty(const char *name, const QVariant &value)
+{
+    return doSetProperty(name, &value, nullptr);
+}
+#endif // inline since 6.6
+bool QObject::setProperty(const char *name, QVariant &&value)
+{
+    return doSetProperty(name, &value, &value);
+}
+
 template <class T>
 inline T qobject_cast(QObject *object)
 {
@@ -494,10 +440,13 @@ Q_CORE_EXPORT QDebug operator<<(QDebug, const QObject *);
 class QSignalBlocker
 {
 public:
+    Q_NODISCARD_CTOR
     inline explicit QSignalBlocker(QObject *o) noexcept;
+    Q_NODISCARD_CTOR
     inline explicit QSignalBlocker(QObject &o) noexcept;
     inline ~QSignalBlocker();
 
+    Q_NODISCARD_CTOR
     inline QSignalBlocker(QSignalBlocker &&other) noexcept;
     inline QSignalBlocker &operator=(QSignalBlocker &&other) noexcept;
 
diff --git a/src/corelib/kernel/qobject_impl.h b/src/corelib/kernel/qobject_impl.h
index 4d6830a3..b57d7e50 100644
--- a/src/corelib/kernel/qobject_impl.h
+++ b/src/corelib/kernel/qobject_impl.h
@@ -37,30 +37,6 @@ namespace QtPrivate {
     { static const int *types() { return nullptr; } };
     template <typename... Args> struct ConnectionTypes<List<Args...>, true>
     { static const int *types() { static const int t[sizeof...(Args) + 1] = { (QtPrivate::QMetaTypeIdHelper<Args>::qt_metatype_id())..., 0 }; return t; } };
-
-    // implementation of QSlotObjectBase for which the slot is a static function
-    // Args and R are the List of arguments and the return type of the signal to which the slot is connected.
-    template<typename Func, typename Args, typename R> class QStaticSlotObject : public QSlotObjectBase
-    {
-        typedef QtPrivate::FunctionPointer<Func> FuncType;
-        Func function;
-        static void impl(int which, QSlotObjectBase *this_, QObject *r, void **a, bool *ret)
-        {
-            switch (which) {
-            case Destroy:
-                delete static_cast<QStaticSlotObject*>(this_);
-                break;
-            case Call:
-                FuncType::template call<Args, R>(static_cast<QStaticSlotObject*>(this_)->function, r, a);
-                break;
-            case Compare:   // not implemented
-            case NumOperations:
-                Q_UNUSED(ret);
-            }
-        }
-    public:
-        explicit QStaticSlotObject(Func f) : QSlotObjectBase(&impl), function(f) {}
-    };
 }
 
 
diff --git a/src/corelib/kernel/qobject_p.h b/src/corelib/kernel/qobject_p.h
index 576666eb..41f1c2f8 100644
--- a/src/corelib/kernel/qobject_p.h
+++ b/src/corelib/kernel/qobject_p.h
@@ -18,18 +18,27 @@
 
 #include <QtCore/private/qglobal_p.h>
 #include "QtCore/qcoreevent.h"
+#include <QtCore/qfunctionaltools_impl.h>
 #include "QtCore/qlist.h"
 #include "QtCore/qobject.h"
 #include "QtCore/qpointer.h"
-#include "QtCore/qsharedpointer.h"
 #include "QtCore/qvariant.h"
 #include "QtCore/qproperty.h"
+#include <QtCore/qshareddata.h>
 #include "QtCore/private/qproperty_p.h"
 
 #include <string>
 
 QT_BEGIN_NAMESPACE
 
+#ifdef Q_MOC_RUN
+#define QT_ANONYMOUS_PROPERTY(text) QT_ANONYMOUS_PROPERTY(text)
+#define QT_ANONYMOUS_PRIVATE_PROPERTY(d, text) QT_ANONYMOUS_PRIVATE_PROPERTY(d, text)
+#elif !defined QT_NO_META_MACROS
+#define QT_ANONYMOUS_PROPERTY(...) QT_ANNOTATE_CLASS(qt_anonymous_property, __VA_ARGS__)
+#define QT_ANONYMOUS_PRIVATE_PROPERTY(d, text) QT_ANNOTATE_CLASS2(qt_anonymous_private_property, d, text)
+#endif
+
 class QVariant;
 class QThreadData;
 class QObjectConnectionListVector;
@@ -103,6 +112,7 @@ public:
     struct ConnectionOrSignalVector;
     struct SignalVector;
     struct Sender;
+    struct TaggedSignalVector;
 
     /*
         This contains the all connections from and to an object.
@@ -246,28 +256,7 @@ namespace QtPrivate {
 inline const QObject *getQObject(const QObjectPrivate *d) { return d->q_func(); }
 
 template <typename Func>
-struct FunctionStorageByValue
-{
-    Func f;
-    Func &func() noexcept { return f; }
-};
-
-template <typename Func>
-struct FunctionStorageEmptyBaseClassOptimization : Func
-{
-    Func &func() noexcept { return *this; }
-    using Func::Func;
-};
-
-template <typename Func>
-using FunctionStorage = typename std::conditional_t<
-        std::conjunction_v<
-            std::is_empty<Func>,
-            std::negation<std::is_final<Func>>
-        >,
-        FunctionStorageEmptyBaseClassOptimization<Func>,
-        FunctionStorageByValue<Func>
-    >;
+using FunctionStorage = QtPrivate::CompactStorage<Func>;
 
 template <typename ObjPrivate> inline void assertObjectType(QObjectPrivate *d)
 {
@@ -279,18 +268,23 @@ template<typename Func, typename Args, typename R>
 class QPrivateSlotObject : public QSlotObjectBase, private FunctionStorage<Func>
 {
     typedef QtPrivate::FunctionPointer<Func> FuncType;
+#if QT_VERSION < QT_VERSION_CHECK(7, 0, 0)
     static void impl(int which, QSlotObjectBase *this_, QObject *r, void **a, bool *ret)
+#else
+    static void impl(QSlotObjectBase *this_, QObject *r, void **a, int which, bool *ret)
+#endif
     {
+        const auto that = static_cast<QPrivateSlotObject*>(this_);
         switch (which) {
             case Destroy:
-                delete static_cast<QPrivateSlotObject*>(this_);
+                delete that;
                 break;
             case Call:
-                FuncType::template call<Args, R>(static_cast<QPrivateSlotObject*>(this_)->func(),
+                FuncType::template call<Args, R>(that->object(),
                                                  static_cast<typename FuncType::Object *>(QObjectPrivate::get(r)), a);
                 break;
             case Compare:
-                *ret = *reinterpret_cast<Func *>(a) == static_cast<QPrivateSlotObject*>(this_)->func();
+                *ret = *reinterpret_cast<Func *>(a) == that->object();
                 break;
             case NumOperations: ;
         }
@@ -457,7 +451,9 @@ class QBoolBlocker
 {
     Q_DISABLE_COPY_MOVE(QBoolBlocker)
 public:
-    explicit inline QBoolBlocker(bool &b, bool value = true) : block(b), reset(b) { block = value; }
+    Q_NODISCARD_CTOR explicit QBoolBlocker(bool &b, bool value = true)
+        : block(b), reset(b)
+    { block = value; }
     inline ~QBoolBlocker() { block = reset; }
 
 private:
diff --git a/src/corelib/kernel/qobject_p_p.h b/src/corelib/kernel/qobject_p_p.h
index d79ce7e2..a9bd290d 100644
--- a/src/corelib/kernel/qobject_p_p.h
+++ b/src/corelib/kernel/qobject_p_p.h
@@ -34,25 +34,35 @@ struct QObjectPrivate::ConnectionList
 static_assert(std::is_trivially_destructible_v<QObjectPrivate::ConnectionList>);
 Q_DECLARE_TYPEINFO(QObjectPrivate::ConnectionList, Q_RELOCATABLE_TYPE);
 
+struct QObjectPrivate::TaggedSignalVector
+{
+    quintptr c;
+
+    TaggedSignalVector() = default;
+    TaggedSignalVector(std::nullptr_t) noexcept : c(0) {}
+    TaggedSignalVector(Connection *v) noexcept : c(reinterpret_cast<quintptr>(v)) { Q_ASSERT(v && (reinterpret_cast<quintptr>(v) & 0x1) == 0);   }
+    TaggedSignalVector(SignalVector *v) noexcept : c(reinterpret_cast<quintptr>(v) | quintptr(1u)) { Q_ASSERT(v); }
+    explicit operator SignalVector *() const noexcept
+    {
+        if (c & 0x1)
+            return reinterpret_cast<SignalVector *>(c & ~quintptr(1u));
+        return nullptr;
+    }
+    explicit operator Connection *() const noexcept
+    {
+        return reinterpret_cast<Connection *>(c);
+    }
+    operator uintptr_t() const noexcept { return c; }
+};
+
 struct QObjectPrivate::ConnectionOrSignalVector
 {
     union {
         // linked list of orphaned connections that need cleaning up
-        ConnectionOrSignalVector *nextInOrphanList;
+        TaggedSignalVector nextInOrphanList;
         // linked list of connections connected to slots in this object
         Connection *next;
     };
-
-    static SignalVector *asSignalVector(ConnectionOrSignalVector *c)
-    {
-        if (reinterpret_cast<quintptr>(c) & 1)
-            return reinterpret_cast<SignalVector *>(reinterpret_cast<quintptr>(c) & ~quintptr(1u));
-        return nullptr;
-    }
-    static Connection *fromSignalVector(SignalVector *v)
-    {
-        return reinterpret_cast<Connection *>(reinterpret_cast<quintptr>(v) | quintptr(1u));
-    }
 };
 static_assert(std::is_trivial_v<QObjectPrivate::ConnectionOrSignalVector>);
 
@@ -132,12 +142,12 @@ struct QObjectPrivate::ConnectionData
     QAtomicPointer<SignalVector> signalVector;
     Connection *senders = nullptr;
     Sender *currentSender = nullptr; // object currently activating the object
-    QAtomicPointer<Connection> orphaned;
+    std::atomic<TaggedSignalVector> orphaned = {};
 
     ~ConnectionData()
     {
         Q_ASSERT(ref.loadRelaxed() == 0);
-        auto *c = orphaned.fetchAndStoreRelaxed(nullptr);
+        TaggedSignalVector c = orphaned.exchange(nullptr, std::memory_order_relaxed);
         if (c)
             deleteOrphaned(c);
         SignalVector *v = signalVector.loadRelaxed();
@@ -159,7 +169,7 @@ struct QObjectPrivate::ConnectionData
     };
     void cleanOrphanedConnections(QObject *sender, LockPolicy lockPolicy = NeedToLock)
     {
-        if (orphaned.loadRelaxed() && ref.loadAcquire() == 1)
+        if (orphaned.load(std::memory_order_relaxed) && ref.loadAcquire() == 1)
             cleanOrphanedConnectionsImpl(sender, lockPolicy);
     }
     void cleanOrphanedConnectionsImpl(QObject *sender, LockPolicy lockPolicy);
@@ -194,15 +204,14 @@ struct QObjectPrivate::ConnectionData
 
         signalVector.storeRelaxed(newVector);
         if (vector) {
-            Connection *o = nullptr;
+            TaggedSignalVector o = nullptr;
             /* No ABA issue here: When adding a node, we only care about the list head, it doesn't
              * matter if the tail changes.
              */
+            o = orphaned.load(std::memory_order_acquire);
             do {
-                o = orphaned.loadRelaxed();
                 vector->nextInOrphanList = o;
-            } while (!orphaned.testAndSetRelease(
-                    o, ConnectionOrSignalVector::fromSignalVector(vector)));
+            } while (!orphaned.compare_exchange_strong(o, TaggedSignalVector(vector), std::memory_order_release));
         }
     }
     int signalVectorCount() const
@@ -210,7 +219,7 @@ struct QObjectPrivate::ConnectionData
         return signalVector.loadAcquire() ? signalVector.loadRelaxed()->count() : -1;
     }
 
-    static void deleteOrphaned(ConnectionOrSignalVector *c);
+    static void deleteOrphaned(TaggedSignalVector o);
 };
 
 struct QObjectPrivate::Sender
diff --git a/src/corelib/kernel/qobjectcleanuphandler.cpp b/src/corelib/kernel/qobjectcleanuphandler.cpp
index aae93ecc..f46afc2f 100644
--- a/src/corelib/kernel/qobjectcleanuphandler.cpp
+++ b/src/corelib/kernel/qobjectcleanuphandler.cpp
@@ -60,7 +60,7 @@ QObject *QObjectCleanupHandler::add(QObject *object)
     if (!object)
         return nullptr;
 
-    connect(object, SIGNAL(destroyed(QObject *)), this, SLOT(objectDestroyed(QObject *)));
+    connect(object, SIGNAL(destroyed(QObject*)), this, SLOT(objectDestroyed(QObject*)));
     cleanupObjects.insert(0, object);
     return object;
 }
@@ -76,7 +76,7 @@ void QObjectCleanupHandler::remove(QObject *object)
     int index;
     if ((index = cleanupObjects.indexOf(object)) != -1) {
         cleanupObjects.removeAt(index);
-        disconnect(object, SIGNAL(destroyed(QObject *)), this, SLOT(objectDestroyed(QObject *)));
+        disconnect(object, SIGNAL(destroyed(QObject*)), this, SLOT(objectDestroyed(QObject*)));
     }
 }
 
diff --git a/src/corelib/kernel/qobjectdefs.h b/src/corelib/kernel/qobjectdefs.h
index 5217b0d7..42f02b97 100644
--- a/src/corelib/kernel/qobjectdefs.h
+++ b/src/corelib/kernel/qobjectdefs.h
@@ -406,81 +406,34 @@ struct Q_CORE_EXPORT QMetaObject
 
 #ifdef Q_QDOC
     template<typename Functor, typename FunctorReturnType>
-    static bool invokeMethod(QObject *context, Functor function, Qt::ConnectionType type = Qt::AutoConnection, FunctorReturnType *ret = nullptr);
+    static bool invokeMethod(QObject *context, Functor &&function, Qt::ConnectionType type = Qt::AutoConnection, FunctorReturnType *ret = nullptr);
     template<typename Functor, typename FunctorReturnType>
-    static bool invokeMethod(QObject *context, Functor function, FunctorReturnType *ret);
+    static bool invokeMethod(QObject *context, Functor &&function, FunctorReturnType *ret);
 #else
-
-    // invokeMethod() for member function pointer
     template <typename Func>
-    static typename std::enable_if<QtPrivate::FunctionPointer<Func>::IsPointerToMemberFunction
-                                   && !std::is_convertible<Func, const char*>::value
-                                   && QtPrivate::FunctionPointer<Func>::ArgumentCount == 0, bool>::type
-    invokeMethod(typename QtPrivate::FunctionPointer<Func>::Object *object,
-                 Func function,
+    static std::enable_if_t<!std::disjunction_v<std::is_convertible<Func, const char *>,
+                                                QtPrivate::Invoke::AreOldStyleArgs<Func>>,
+                            bool>
+    invokeMethod(typename QtPrivate::ContextTypeForFunctor<Func>::ContextType *object,
+                 Func &&function,
                  Qt::ConnectionType type = Qt::AutoConnection,
-                 typename QtPrivate::FunctionPointer<Func>::ReturnType *ret = nullptr)
+                 typename QtPrivate::Callable<Func>::ReturnType *ret = nullptr)
     {
-        return invokeMethodImpl(object, new QtPrivate::QSlotObjectWithNoArgs<Func>(function), type, ret);
+        static_assert(QtPrivate::Callable<Func>::ArgumentCount <= 0,
+                      "QMetaObject::invokeMethod cannot call functions with arguments!");
+        using Prototype = typename QtPrivate::Callable<Func>::Function;
+        return invokeMethodImpl(object, QtPrivate::makeCallableObject<Prototype>(std::forward<Func>(function)), type, ret);
     }
 
     template <typename Func>
-    static typename std::enable_if<QtPrivate::FunctionPointer<Func>::IsPointerToMemberFunction
-                                   && !std::is_convertible<Func, const char*>::value
-                                   && QtPrivate::FunctionPointer<Func>::ArgumentCount == 0, bool>::type
-    invokeMethod(typename QtPrivate::FunctionPointer<Func>::Object *object,
-                 Func function,
-                 typename QtPrivate::FunctionPointer<Func>::ReturnType *ret)
+    static std::enable_if_t<!std::disjunction_v<std::is_convertible<Func, const char *>,
+                                                QtPrivate::Invoke::AreOldStyleArgs<Func>>,
+                            bool>
+    invokeMethod(typename QtPrivate::ContextTypeForFunctor<Func>::ContextType *object,
+                 Func &&function,
+                 typename QtPrivate::Callable<Func>::ReturnType *ret)
     {
-        return invokeMethodImpl(object, new QtPrivate::QSlotObjectWithNoArgs<Func>(function), Qt::AutoConnection, ret);
-    }
-
-    // invokeMethod() for function pointer (not member)
-    template <typename Func>
-    static typename std::enable_if<!QtPrivate::FunctionPointer<Func>::IsPointerToMemberFunction
-                                   && !std::is_convertible<Func, const char*>::value
-                                   && QtPrivate::FunctionPointer<Func>::ArgumentCount == 0, bool>::type
-    invokeMethod(QObject *context, Func function,
-                 Qt::ConnectionType type = Qt::AutoConnection,
-                 typename QtPrivate::FunctionPointer<Func>::ReturnType *ret = nullptr)
-    {
-        return invokeMethodImpl(context, new QtPrivate::QFunctorSlotObjectWithNoArgsImplicitReturn<Func>(function), type, ret);
-    }
-
-    template <typename Func>
-    static typename std::enable_if<!QtPrivate::FunctionPointer<Func>::IsPointerToMemberFunction
-                                   && !std::is_convertible<Func, const char*>::value
-                                   && QtPrivate::FunctionPointer<Func>::ArgumentCount == 0, bool>::type
-    invokeMethod(QObject *context, Func function,
-                 typename QtPrivate::FunctionPointer<Func>::ReturnType *ret)
-    {
-        return invokeMethodImpl(context, new QtPrivate::QFunctorSlotObjectWithNoArgsImplicitReturn<Func>(function), Qt::AutoConnection, ret);
-    }
-
-    // invokeMethod() for Functor
-    template <typename Func>
-    static typename std::enable_if<!QtPrivate::FunctionPointer<Func>::IsPointerToMemberFunction
-                                   && QtPrivate::FunctionPointer<Func>::ArgumentCount == -1
-                                   && !std::is_convertible<Func, const char*>::value, bool>::type
-    invokeMethod(QObject *context, Func function,
-                 Qt::ConnectionType type = Qt::AutoConnection, decltype(function()) *ret = nullptr)
-    {
-        return invokeMethodImpl(context,
-                                new QtPrivate::QFunctorSlotObjectWithNoArgs<Func, decltype(function())>(std::move(function)),
-                                type,
-                                ret);
-    }
-
-    template <typename Func>
-    static typename std::enable_if<!QtPrivate::FunctionPointer<Func>::IsPointerToMemberFunction
-                                   && QtPrivate::FunctionPointer<Func>::ArgumentCount == -1
-                                   && !std::is_convertible<Func, const char*>::value, bool>::type
-    invokeMethod(QObject *context, Func function, decltype(function()) *ret)
-    {
-        return invokeMethodImpl(context,
-                                new QtPrivate::QFunctorSlotObjectWithNoArgs<Func, decltype(function())>(std::move(function)),
-                                Qt::AutoConnection,
-                                ret);
+        return invokeMethod(object, std::forward<Func>(function), Qt::AutoConnection, ret);
     }
 
 #endif
@@ -521,7 +474,8 @@ struct Q_CORE_EXPORT QMetaObject
         RegisterPropertyMetaType,
         RegisterMethodArgumentMetaType,
         BindableProperty,
-        CustomCall
+        CustomCall,
+        ConstructInPlace,
     };
 
     int static_metacall(Call, int, void **) const;
@@ -614,7 +568,7 @@ inline const QMetaObject *QMetaObject::superClass() const
 { return d.superdata; }
 
 namespace QtPrivate {
-    /* Trait that tells is a the Object has a Q_OBJECT macro */
+    // Trait that tells if a QObject has a Q_OBJECT macro
     template <typename Object> struct HasQ_OBJECT_Macro {
         template <typename T>
         static char test(int (T::*)(QMetaObject::Call, int, void **));
diff --git a/src/corelib/kernel/qobjectdefs_impl.h b/src/corelib/kernel/qobjectdefs_impl.h
index b95c1e69..a45792c5 100644
--- a/src/corelib/kernel/qobjectdefs_impl.h
+++ b/src/corelib/kernel/qobjectdefs_impl.h
@@ -12,11 +12,15 @@
 #pragma qt_sync_stop_processing
 #endif
 
+#include <QtCore/qfunctionaltools_impl.h>
+
 #include <memory>
 
 QT_BEGIN_NAMESPACE
 class QObject;
 class QObjectPrivate;
+class QMetaMethod;
+class QByteArray;
 
 namespace QtPrivate {
     template <typename T> struct RemoveRef { typedef T Type; };
@@ -31,23 +35,27 @@ namespace QtPrivate {
        the list composed of the first N element of the list
      */
     // With variadic template, lists are represented using a variadic template argument instead of the lisp way
-    template <typename...> struct List {};
-    template <typename Head, typename... Tail> struct List<Head, Tail...> { typedef Head Car; typedef List<Tail...> Cdr; };
+    template <typename... Ts> struct List { static constexpr size_t size = sizeof...(Ts); };
+    template<typename T> struct SizeOfList { static constexpr size_t value = 1; };
+    template<> struct SizeOfList<List<>> { static constexpr size_t value = 0; };
+    template<typename ...Ts> struct SizeOfList<List<Ts...>>  { static constexpr size_t value = List<Ts...>::size; };
+    template <typename Head, typename... Tail> struct List<Head, Tail...> {
+        static constexpr size_t size = 1 + sizeof...(Tail);
+        typedef Head Car; typedef List<Tail...> Cdr;
+    };
     template <typename, typename> struct List_Append;
     template <typename... L1, typename...L2> struct List_Append<List<L1...>, List<L2...>> { typedef List<L1..., L2...> Value; };
     template <typename L, int N> struct List_Left {
         typedef typename List_Append<List<typename L::Car>,typename List_Left<typename L::Cdr, N - 1>::Value>::Value Value;
     };
     template <typename L> struct List_Left<L, 0> { typedef List<> Value; };
-    // List_Select<L,N> returns (via typedef Value) the Nth element of the list L
-    template <typename L, int N> struct List_Select { typedef typename List_Select<typename L::Cdr, N - 1>::Value Value; };
-    template <typename L> struct List_Select<L,0> { typedef typename L::Car Value; };
 
     /*
-       trick to set the return value of a slot that works even if the signal or the slot returns void
-       to be used like     function(), ApplyReturnValue<ReturnType>(&return_value)
+       Trick to set the return value of a slot that works even if the signal or the slot returns void
+       to be used like
+            function(), ApplyReturnValue<ReturnType>(&return_value)
        if function() returns a value, the operator,(T, ApplyReturnValue<ReturnType>) is called, but if it
-       returns void, the builtin one is used without an error.
+       returns void, the built-in one is used without an error.
     */
     template <typename T>
     struct ApplyReturnValue {
@@ -77,7 +85,7 @@ namespace QtPrivate {
             and args is the array of pointer to arguments, as used in qt_metacall
 
        The Functor<Func,N> struct is the helper to call a functor of N argument.
-       its call function is the same as the FunctionPointer::call function.
+       Its call function is the same as the FunctionPointer::call function.
      */
     template<class T> using InvokeGenSeq = typename T::Type;
 
@@ -236,14 +244,6 @@ namespace QtPrivate {
         }
     };
 
-    template<typename Function, int N> struct Functor
-    {
-        template <typename SignalArgs, typename R>
-        static void call(Function &f, void *, void **arg) {
-            FunctorCall<typename Indexes<N>::Value, SignalArgs, R, Function>::call(f, arg);
-        }
-    };
-
     // Traits to detect if there is a conversion between two types,
     // and that conversion does not include a narrowing conversion.
     template <typename T>
@@ -277,10 +277,9 @@ namespace QtPrivate {
        static_assert(CheckCompatibleArguments<FunctionPointer<Signal>::Arguments, FunctionPointer<Slot>::Arguments>::value)
     */
     template<typename A1, typename A2> struct AreArgumentsCompatible {
-        static int test(const typename RemoveRef<A2>::Type&);
+        static int test(const std::remove_reference_t<A2>&);
         static char test(...);
-        static const typename RemoveRef<A1>::Type &dummy();
-        enum { value = sizeof(test(dummy())) == sizeof(int) };
+        enum { value = sizeof(test(std::declval<std::remove_reference_t<A1>>())) == sizeof(int) };
 #ifdef QT_NO_NARROWING_CONVERSIONS_IN_CONNECT
         using AreArgumentsConvertibleWithoutNarrowing = AreArgumentsConvertibleWithoutNarrowingBase<std::decay_t<A1>, std::decay_t<A2>>;
         static_assert(AreArgumentsConvertibleWithoutNarrowing::value, "Signal and slot arguments are not compatible (narrowing)");
@@ -319,11 +318,10 @@ namespace QtPrivate {
 
     template <typename Functor, typename... ArgList> struct ComputeFunctorArgumentCount<Functor, List<ArgList...>>
     {
-        template <typename D> static D dummy();
-        template <typename F> static auto test(F f) -> decltype(((f.operator()((dummy<ArgList>())...)), int()));
+        template <typename F> static auto test(F f) -> decltype(((f.operator()((std::declval<ArgList>())...)), int()));
         static char test(...);
         enum {
-            Ok = sizeof(test(dummy<Functor>())) == sizeof(int),
+            Ok = sizeof(test(std::declval<Functor>())) == sizeof(int),
             Value = Ok ? int(sizeof...(ArgList)) : int(ComputeFunctorArgumentCountHelper<Functor, List<ArgList...>, Ok>::Value)
         };
     };
@@ -331,19 +329,79 @@ namespace QtPrivate {
     /* get the return type of a functor, given the signal argument list  */
     template <typename Functor, typename ArgList> struct FunctorReturnType;
     template <typename Functor, typename ... ArgList> struct FunctorReturnType<Functor, List<ArgList...>> {
-        template <typename D> static D dummy();
-        typedef decltype(dummy<Functor>().operator()((dummy<ArgList>())...)) Value;
+        typedef decltype(std::declval<Functor>().operator()((std::declval<ArgList>())...)) Value;
     };
 
+    template<typename Function, int N> struct Functor
+    {
+        template <typename SignalArgs, typename R>
+        static void call(Function &f, void *, void **arg) {
+            FunctorCall<typename Indexes<N>::Value, SignalArgs, R, Function>::call(f, arg);
+        }
+    };
+
+    template<typename Func>
+    struct ZeroArgFunctor : Functor<Func, 0>
+    {
+        using ReturnType = decltype(std::declval<Func>()());
+        using Function = ReturnType(*)();
+        enum {ArgumentCount = 0};
+        using Arguments = QtPrivate::List<>;
+    };
+
+    template<typename Func>
+    using Callable = std::conditional_t<FunctionPointer<std::decay_t<Func>>::ArgumentCount == -1,
+        ZeroArgFunctor<std::decay_t<Func>>,
+        FunctionPointer<std::decay_t<Func>>
+    >;
+
+    /*
+        Wrapper around ComputeFunctorArgumentCount and CheckCompatibleArgument,
+        depending on whether \a Functor is a PMF or not. Returns -1 if \a Func is
+        not compatible with the \a ExpectedArguments, otherwise returns >= 0.
+    */
+    template<typename Prototype, typename Functor>
+    inline constexpr std::enable_if_t<!std::disjunction_v<std::is_convertible<Prototype, const char *>,
+                                                          std::is_same<std::decay_t<Prototype>, QMetaMethod>,
+                                                          std::is_convertible<Functor, const char *>,
+                                                          std::is_same<std::decay_t<Functor>, QMetaMethod>
+                                                         >,
+                                      int>
+    countMatchingArguments()
+    {
+        using ExpectedArguments = typename QtPrivate::FunctionPointer<Prototype>::Arguments;
+        using Actual = std::decay_t<Functor>;
+
+        if constexpr (QtPrivate::FunctionPointer<Actual>::IsPointerToMemberFunction
+                   || QtPrivate::FunctionPointer<Actual>::ArgumentCount >= 0) {
+            // PMF or free function
+            using ActualArguments = typename QtPrivate::FunctionPointer<Actual>::Arguments;
+            if constexpr (QtPrivate::CheckCompatibleArguments<ExpectedArguments, ActualArguments>::value)
+                return QtPrivate::FunctionPointer<Actual>::ArgumentCount;
+            else
+                return -1;
+        } else {
+            // lambda or functor
+            return QtPrivate::ComputeFunctorArgumentCount<Actual, ExpectedArguments>::Value;
+        }
+    }
+
     // internal base class (interface) containing functions required to call a slot managed by a pointer to function.
-    class QSlotObjectBase {
-        QAtomicInt m_ref;
-        // don't use virtual functions here; we don't want the
+    class QSlotObjectBase
+    {
+        // Don't use virtual functions here; we don't want the
         // compiler to create tons of per-polymorphic-class stuff that
         // we'll never need. We just use one function pointer, and the
         // Operations enum below to distinguish requests
+#if QT_VERSION < QT_VERSION_CHECK(7, 0, 0)
+        QAtomicInt m_ref = 1;
         typedef void (*ImplFn)(int which, QSlotObjectBase* this_, QObject *receiver, void **args, bool *ret);
         const ImplFn m_impl;
+#else
+        using ImplFn = void (*)(QSlotObjectBase* this_, QObject *receiver, void **args, int which, bool *ret);
+        const ImplFn m_impl;
+        QAtomicInt m_ref = 1;
+#endif
     protected:
         // The operations that can be requested by calls to m_impl,
         // see the member functions that call m_impl below for details
@@ -355,7 +413,7 @@ namespace QtPrivate {
             NumOperations
         };
     public:
-        explicit QSlotObjectBase(ImplFn fn) : m_ref(1), m_impl(fn) {}
+        explicit QSlotObjectBase(ImplFn fn) : m_impl(fn) {}
 
         // A custom deleter compatible with std protocols (op()()) we well as
         // the legacy QScopedPointer protocol (cleanup()).
@@ -367,11 +425,24 @@ namespace QtPrivate {
         };
 
         bool ref() noexcept { return m_ref.ref(); }
+#if QT_VERSION < QT_VERSION_CHECK(7, 0, 0)
         inline void destroyIfLastRef() noexcept
         { if (!m_ref.deref()) m_impl(Destroy, this, nullptr, nullptr, nullptr); }
 
         inline bool compare(void **a) { bool ret = false; m_impl(Compare, this, nullptr, a, &ret); return ret; }
-        inline void call(QObject *r, void **a)  { m_impl(Call,    this, r, a, nullptr); }
+        inline void call(QObject *r, void **a)  { m_impl(Call, this, r, a, nullptr); }
+#else
+        inline void destroyIfLastRef() noexcept
+        { if (!m_ref.deref()) m_impl(this, nullptr, nullptr, Destroy, nullptr); }
+
+        inline bool compare(void **a)
+        {
+            bool ret = false;
+            m_impl(this, nullptr, a, Compare, &ret);
+            return ret;
+        }
+        inline void call(QObject *r, void **a)  { m_impl(this, r, a, Call, nullptr); }
+#endif
         bool isImpl(ImplFn f) const { return m_impl == f; }
     protected:
         ~QSlotObjectBase() {}
@@ -391,20 +462,20 @@ namespace QtPrivate {
     class SlotObjSharedPtr {
         SlotObjUniquePtr obj;
     public:
-        Q_IMPLICIT SlotObjSharedPtr() noexcept = default;
-        Q_IMPLICIT SlotObjSharedPtr(std::nullptr_t) noexcept : SlotObjSharedPtr() {}
-        explicit SlotObjSharedPtr(SlotObjUniquePtr o)
+        Q_NODISCARD_CTOR Q_IMPLICIT SlotObjSharedPtr() noexcept = default;
+        Q_NODISCARD_CTOR Q_IMPLICIT SlotObjSharedPtr(std::nullptr_t) noexcept : SlotObjSharedPtr() {}
+        Q_NODISCARD_CTOR explicit SlotObjSharedPtr(SlotObjUniquePtr o)
             : obj(std::move(o))
         {
             // does NOT ref() (takes unique_ptr by value)
             // (that's why (QSlotObjectBase*) ctor doesn't exisit: don't know whether that one _should_)
         }
-        SlotObjSharedPtr(const SlotObjSharedPtr &other) noexcept
+        Q_NODISCARD_CTOR SlotObjSharedPtr(const SlotObjSharedPtr &other) noexcept
             : obj{copy(other.obj)} {}
         SlotObjSharedPtr &operator=(const SlotObjSharedPtr &other) noexcept
         { auto copy = other; swap(copy); return *this; }
 
-        SlotObjSharedPtr(SlotObjSharedPtr &&other) noexcept = default;
+        Q_NODISCARD_CTOR SlotObjSharedPtr(SlotObjSharedPtr &&other) noexcept = default;
         SlotObjSharedPtr &operator=(SlotObjSharedPtr &&other) noexcept = default;
         ~SlotObjSharedPtr() = default;
 
@@ -416,66 +487,125 @@ namespace QtPrivate {
         explicit operator bool() const noexcept { return bool(obj); }
     };
 
-    // implementation of QSlotObjectBase for which the slot is a pointer to member function of a QObject
+
+    // Implementation of QSlotObjectBase for which the slot is a callable (function, PMF, functor, or lambda).
     // Args and R are the List of arguments and the return type of the signal to which the slot is connected.
-    template<typename Func, typename Args, typename R> class QSlotObject : public QSlotObjectBase
+    template <typename Func, typename Args, typename R>
+    class QCallableObject : public QSlotObjectBase,
+                            private QtPrivate::CompactStorage<std::decay_t<Func>>
     {
-        typedef QtPrivate::FunctionPointer<Func> FuncType;
-        Func function;
-        static void impl(int which, QSlotObjectBase *this_, QObject *r, void **a, bool *ret)
+        using FunctorValue = std::decay_t<Func>;
+        using Storage = QtPrivate::CompactStorage<FunctorValue>;
+        using FuncType = std::conditional_t<std::is_member_function_pointer_v<FunctorValue>,
+            QtPrivate::FunctionPointer<FunctorValue>,
+            QtPrivate::Functor<FunctorValue, Args::size>
+        >;
+
+#if QT_VERSION < QT_VERSION_CHECK(7, 0, 0)
+        Q_DECL_HIDDEN static void impl(int which, QSlotObjectBase *this_, QObject *r, void **a, bool *ret)
+#else
+        // Design note: the first three arguments match those for typical Call
+        // and Destroy uses. We return void to enable tail call optimization
+        // for those too.
+        Q_DECL_HIDDEN static void impl(QSlotObjectBase *this_, QObject *r, void **a, int which, bool *ret)
+#endif
         {
+            const auto that = static_cast<QCallableObject*>(this_);
             switch (which) {
             case Destroy:
-                delete static_cast<QSlotObject*>(this_);
+                delete that;
                 break;
             case Call:
-                FuncType::template call<Args, R>(static_cast<QSlotObject*>(this_)->function, static_cast<typename FuncType::Object *>(r), a);
+                if constexpr (std::is_member_function_pointer_v<FunctorValue>)
+                    FuncType::template call<Args, R>(that->object(), static_cast<typename FuncType::Object *>(r), a);
+                else
+                    FuncType::template call<Args, R>(that->object(), r, a);
                 break;
             case Compare:
-                *ret = *reinterpret_cast<Func *>(a) == static_cast<QSlotObject*>(this_)->function;
-                break;
-            case NumOperations: ;
-            }
-        }
-    public:
-        explicit QSlotObject(Func f) : QSlotObjectBase(&impl), function(f) {}
-    };
-    // implementation of QSlotObjectBase for which the slot is a functor (or lambda)
-    // N is the number of arguments
-    // Args and R are the List of arguments and the return type of the signal to which the slot is connected.
-    template<typename Func, int N, typename Args, typename R> class QFunctorSlotObject : public QSlotObjectBase
-    {
-        typedef QtPrivate::Functor<Func, N> FuncType;
-        Func function;
-        static void impl(int which, QSlotObjectBase *this_, QObject *r, void **a, bool *ret)
-        {
-            switch (which) {
-            case Destroy:
-                delete static_cast<QFunctorSlotObject*>(this_);
-                break;
-            case Call:
-                FuncType::template call<Args, R>(static_cast<QFunctorSlotObject*>(this_)->function, r, a);
-                break;
-            case Compare: // not implemented
+                if constexpr (std::is_member_function_pointer_v<FunctorValue>) {
+                    *ret = *reinterpret_cast<FunctorValue *>(a) == that->object();
+                    break;
+                }
+                // not implemented otherwise
+                Q_FALLTHROUGH();
             case NumOperations:
                 Q_UNUSED(ret);
             }
         }
     public:
-        explicit QFunctorSlotObject(Func f) : QSlotObjectBase(&impl), function(std::move(f)) {}
+        explicit QCallableObject(Func &&f) : QSlotObjectBase(&impl), Storage{std::move(f)} {}
+        explicit QCallableObject(const Func &f) : QSlotObjectBase(&impl), Storage{f} {}
     };
 
-    // typedefs for readability for when there are no parameters
-    template <typename Func>
-    using QSlotObjectWithNoArgs = QSlotObject<Func,
-                                              QtPrivate::List<>,
-                                              typename QtPrivate::FunctionPointer<Func>::ReturnType>;
-
-    template <typename Func, typename R>
-    using QFunctorSlotObjectWithNoArgs = QFunctorSlotObject<Func, 0, QtPrivate::List<>, R>;
+    // Helper to detect the context object type based on the functor type:
+    // QObject for free functions and lambdas; the callee for member function
+    // pointers. The default declaration doesn't have the ContextType typedef,
+    // and so non-functor APIs (like old-style string-based slots) are removed
+    // from the overload set.
+    template <typename Func, typename = void>
+    struct ContextTypeForFunctor {};
 
     template <typename Func>
-    using QFunctorSlotObjectWithNoArgsImplicitReturn = QFunctorSlotObjectWithNoArgs<Func, typename QtPrivate::FunctionPointer<Func>::ReturnType>;
+    struct ContextTypeForFunctor<Func,
+        std::enable_if_t<!std::disjunction_v<std::is_convertible<Func, const char *>,
+                                             std::is_member_function_pointer<Func>
+                                            >
+                        >
+    >
+    {
+        using ContextType = QObject;
+    };
+    template <typename Func>
+    struct ContextTypeForFunctor<Func,
+        std::enable_if_t<std::conjunction_v<std::negation<std::is_convertible<Func, const char *>>,
+                                            std::is_member_function_pointer<Func>,
+                                            std::is_convertible<typename QtPrivate::FunctionPointer<Func>::Object *, QObject *>
+                                           >
+                        >
+    >
+    {
+        using ContextType = typename QtPrivate::FunctionPointer<Func>::Object;
+    };
+
+    /*
+        Returns a suitable QSlotObjectBase object that holds \a func, if possible.
+
+        Not available (and thus produces compile-time errors) if the Functor provided is
+        not compatible with the expected Prototype.
+    */
+    template <typename Prototype, typename Functor>
+    static constexpr std::enable_if_t<QtPrivate::countMatchingArguments<Prototype, Functor>() >= 0,
+        QtPrivate::QSlotObjectBase *>
+    makeCallableObject(Functor &&func)
+    {
+        using ExpectedSignature = QtPrivate::FunctionPointer<Prototype>;
+        using ExpectedReturnType = typename ExpectedSignature::ReturnType;
+        using ExpectedArguments = typename ExpectedSignature::Arguments;
+
+        using ActualSignature = QtPrivate::FunctionPointer<Functor>;
+        constexpr int MatchingArgumentCount = QtPrivate::countMatchingArguments<Prototype, Functor>();
+        using ActualArguments  = typename QtPrivate::List_Left<ExpectedArguments, MatchingArgumentCount>::Value;
+
+        static_assert(int(ActualSignature::ArgumentCount) <= int(ExpectedSignature::ArgumentCount),
+            "Functor requires more arguments than what can be provided.");
+
+        return new QtPrivate::QCallableObject<std::decay_t<Functor>, ActualArguments, ExpectedReturnType>(std::forward<Functor>(func));
+    }
+
+    template<typename Prototype, typename Functor, typename = void>
+    struct AreFunctionsCompatible : std::false_type {};
+    template<typename Prototype, typename Functor>
+    struct AreFunctionsCompatible<Prototype, Functor, std::enable_if_t<
+        std::is_same_v<decltype(QtPrivate::makeCallableObject<Prototype>(std::forward<Functor>(std::declval<Functor>()))),
+        QtPrivate::QSlotObjectBase *>>
+    > : std::true_type {};
+
+    template<typename Prototype, typename Functor>
+    inline constexpr bool AssertCompatibleFunctions() {
+        static_assert(AreFunctionsCompatible<Prototype, Functor>::value,
+                      "Functor is not compatible with expected prototype!");
+        return true;
+    }
 }
 
 QT_END_NAMESPACE
diff --git a/src/corelib/kernel/qpermissions.cpp b/src/corelib/kernel/qpermissions.cpp
index 83e12ebc..46b989c5 100644
--- a/src/corelib/kernel/qpermissions.cpp
+++ b/src/corelib/kernel/qpermissions.cpp
@@ -46,7 +46,6 @@ Q_LOGGING_CATEGORY(lcPermissions, "qt.permissions", QtWarningMsg);
     \code
     void VoiceMemoWidget::onRecordingInitiated()
     {
-    #if QT_CONFIG(permissions)
         QMicrophonePermission microphonePermission;
         switch (qApp->checkPermission(microphonePermission)) {
         case Qt::PermissionStatus::Undetermined:
@@ -57,10 +56,8 @@ Q_LOGGING_CATEGORY(lcPermissions, "qt.permissions", QtWarningMsg);
             m_permissionInstructionsDialog->show();
             return;
         case Qt::PermissionStatus::Granted:
-            break; // Proceed
+            m_microphone->startRecording();
         }
-    #endif
-        m_microphone->startRecording();
     }
     \endcode
 
@@ -76,9 +73,6 @@ Q_LOGGING_CATEGORY(lcPermissions, "qt.permissions", QtWarningMsg);
     why we can not record voice memos at this time (if the permission was denied),
     or proceed to using the microphone (if permission was granted).
 
-    The use of the \c{QT_CONFIG(permissions)} macro ensures that the code
-    will work as before on platforms where permissions are not available.
-
     \note On \macOS and iOS permissions can currently only be requested for
     GUI applications.
 
@@ -361,16 +355,86 @@ QT_PERMISSION_IMPL_COMMON(QMicrophonePermission)
       \row
         \li Android
         \li \l{android-uses-permission}{\c{uses-permission}}
-        \li \c android.permission.BLUETOOTH
+        \li Up to Android 11 (API Level < 31):
+            \list
+                \li \c android.permission.BLUETOOTH
+                \li \c android.permission.ACCESS_FINE_LOCATION
+            \endlist
+
+            Starting from Android 12 (API Level >= 31):
+            \list
+                \li \c android.permission.BLUETOOTH_ADVERTISE
+                \li \c android.permission.BLUETOOTH_CONNECT
+                \li \c android.permission.BLUETOOTH_SCAN
+                \li \c android.permission.ACCESS_FINE_LOCATION
+            \endlist
     \include permissions.qdocinc end-usage-declarations
 
+    \note Currently on Android the \c android.permission.ACCESS_FINE_LOCATION
+    permission is requested together with Bluetooth permissions. This is
+    required for Bluetooth to work properly, unless the application provides a
+    strong assertion in the application manifest that it does not use Bluetooth
+    to derive a physical location. This permission coupling may change in
+    future.
+
     \include permissions.qdocinc permission-metadata
 */
 
 QT_PERMISSION_IMPL_COMMON(QBluetoothPermission)
-    : u{} // stateless, atm
+    : u{ShortData{CommunicationMode::Default, {}}}
 {}
 
+/*!
+    \enum QBluetoothPermission::CommunicationMode
+    \since 6.6
+
+    This enum is used to control the allowed Bluetooth communication modes.
+
+    \value Access Allow this device to access other Bluetooth devices. This
+           includes scanning for nearby devices and connecting to them.
+    \value Advertise Allow other Bluetooth devices to discover this device.
+    \value Default This configuration is used by default.
+
+    \note The fine-grained permissions are currently supported only on
+    Android 12 and newer. On older Android versions, as well as on Apple
+    operating systems, any mode results in full Bluetooth access.
+
+    \note For now the \c Access mode on Android also requests the
+    \l {QLocationPermission::Precise}{precise location} permission.
+    This permission coupling may change in the future.
+*/
+
+/*!
+    \since 6.6
+
+    Sets the allowed Bluetooth communication modes to \a modes.
+
+    \note A default-constructed instance of \l {QBluetoothPermission::}
+    {CommunicationModes} has no sense, so an attempt to set such a mode will
+    raise a \c {qWarning()} and fall back to using the
+    \l {QBluetoothPermission::}{Default} mode.
+*/
+void QBluetoothPermission::setCommunicationModes(CommunicationModes modes)
+{
+    if (modes == CommunicationModes{}) {
+        qCWarning(lcPermissions, "QBluetoothPermission: trying to set an invalid empty mode. "
+                                 "Falling back to CommunicationMode::Default.");
+        u.data.mode = Default;
+    } else {
+        u.data.mode = static_cast<CommunicationMode>(modes.toInt());
+    }
+}
+
+/*!
+    \since 6.6
+
+    Returns the allowed Bluetooth communication modes.
+*/
+QBluetoothPermission::CommunicationModes QBluetoothPermission::communicationModes() const
+{
+    return u.data.mode;
+}
+
 /*!
     \class QLocationPermission
     \brief Access the user's location.
@@ -602,6 +666,28 @@ QDebug operator<<(QDebug debug, const QPermission &permission)
 
 #undef QT_PERMISSION_IMPL_COMMON
 
+#if !defined(Q_OS_DARWIN) && !defined(Q_OS_ANDROID) && !defined(Q_OS_WASM)
+// Default backend for platforms without a permission implementation.
+// Always returns Granted, to match behavior when not using permission APIs
+// https://bugreports.qt.io/browse/QTBUG-90498?focusedCommentId=725085#comment-725085
+namespace QPermissions::Private
+{
+    Qt::PermissionStatus checkPermission(const QPermission &permission)
+    {
+        qCDebug(lcPermissions) << "No permission backend on this platform."
+            << "Optimistically returning Granted for" << permission;
+        return Qt::PermissionStatus::Granted;
+    }
+
+    void requestPermission(const QPermission &permission, const PermissionCallback &callback)
+    {
+        qCDebug(lcPermissions) << "No permission backend on this platform."
+            << "Optimistically returning Granted for" << permission;
+        callback(Qt::PermissionStatus::Granted);
+    }
+}
+#endif
+
 QT_END_NAMESPACE
 
 #include "moc_qpermissions.cpp"
diff --git a/src/corelib/kernel/qpermissions.h b/src/corelib/kernel/qpermissions.h
index 22c5be5b..9573e377 100644
--- a/src/corelib/kernel/qpermissions.h
+++ b/src/corelib/kernel/qpermissions.h
@@ -173,6 +173,32 @@ private:
 };
 Q_DECLARE_SHARED(QContactsPermission)
 
+class QBluetoothPermissionPrivate;
+class QBluetoothPermission
+{
+    Q_GADGET_EXPORT(Q_CORE_EXPORT)
+public:
+    enum CommunicationMode : quint8 {
+        Access = 0x01,
+        Advertise = 0x02,
+        Default = Access | Advertise,
+    };
+    Q_DECLARE_FLAGS(CommunicationModes, CommunicationMode)
+    Q_FLAG(CommunicationModes)
+
+    Q_CORE_EXPORT void setCommunicationModes(CommunicationModes modes);
+    Q_CORE_EXPORT CommunicationModes communicationModes() const;
+
+private:
+    struct ShortData {
+        CommunicationMode mode;
+        char reserved[sizeof(void*) - sizeof(mode)];
+    };
+    QT_PERMISSION(QBluetoothPermission)
+};
+Q_DECLARE_OPERATORS_FOR_FLAGS(QBluetoothPermission::CommunicationModes)
+Q_DECLARE_SHARED(QBluetoothPermission)
+
 #define Q_DECLARE_MINIMAL_PERMISSION(ClassName) \
     class ClassName##Private; \
     class ClassName \
@@ -184,7 +210,6 @@ Q_DECLARE_SHARED(QContactsPermission)
 
 Q_DECLARE_MINIMAL_PERMISSION(QCameraPermission)
 Q_DECLARE_MINIMAL_PERMISSION(QMicrophonePermission)
-Q_DECLARE_MINIMAL_PERMISSION(QBluetoothPermission)
 
 #undef QT_PERMISSION
 #undef Q_DECLARE_MINIMAL_PERMISSION
diff --git a/src/corelib/kernel/qpermissions_android.cpp b/src/corelib/kernel/qpermissions_android.cpp
index 7601e896..6c21ded7 100644
--- a/src/corelib/kernel/qpermissions_android.cpp
+++ b/src/corelib/kernel/qpermissions_android.cpp
@@ -49,6 +49,34 @@ static QStringList nativeLocationPermission(const QLocationPermission &permissio
     return nativeLocationPermissionList;
 }
 
+static QStringList nativeBluetoothPermission(const QBluetoothPermission &permission)
+{
+    // See https://developer.android.com/guide/topics/connectivity/bluetooth/permissions
+    // for the details.
+
+    // API Level < 31
+    static QString bluetoothGeneral = u"android.permission.BLUETOOTH"_s;
+    // API Level >= 31
+    static QString bluetoothScan = u"android.permission.BLUETOOTH_SCAN"_s;
+    static QString bluetoothAdvertise = u"android.permission.BLUETOOTH_ADVERTISE"_s;
+    static QString bluetoothConnect = u"android.permission.BLUETOOTH_CONNECT"_s;
+    // Fine location is currently required for ALL API levels, but that is not
+    // strictly necessary for API Level >= 31. See QTBUG-112164.
+    static QString fineLocation = u"android.permission.ACCESS_FINE_LOCATION"_s;
+
+    if (QtAndroidPrivate::androidSdkVersion() < 31) {
+        return {bluetoothGeneral, fineLocation};
+    } else {
+        const auto modes = permission.communicationModes();
+        QStringList permissionList;
+        if (modes & QBluetoothPermission::Advertise)
+            permissionList << bluetoothAdvertise;
+        if (modes & QBluetoothPermission::Access)
+            permissionList << bluetoothScan << bluetoothConnect << fineLocation;
+        return permissionList;
+    }
+}
+
 static QStringList nativeStringsFromPermission(const QPermission &permission)
 {
     const auto id = permission.type().id();
@@ -59,8 +87,7 @@ static QStringList nativeStringsFromPermission(const QPermission &permission)
     } else if (id == qMetaTypeId<QMicrophonePermission>()) {
         return { u"android.permission.RECORD_AUDIO"_s };
     } else if (id == qMetaTypeId<QBluetoothPermission>()) {
-        // TODO: handle Android 12 new bluetooth permissions
-        return { u"android.permission.BLUETOOTH"_s };
+        return nativeBluetoothPermission(*permission.value<QBluetoothPermission>());
     } else if (id == qMetaTypeId<QContactsPermission>()) {
         const auto readContactsString = u"android.permission.READ_CONTACTS"_s;
         switch (permission.value<QContactsPermission>()->accessMode()) {
diff --git a/src/corelib/kernel/qpointer.cpp b/src/corelib/kernel/qpointer.cpp
index aebdd684..e426c63a 100644
--- a/src/corelib/kernel/qpointer.cpp
+++ b/src/corelib/kernel/qpointer.cpp
@@ -97,6 +97,31 @@
     pointed to.
 */
 
+/*!
+    \fn template <class T> template <class X> QPointer<T>::QPointer(QPointer<X> &&other)
+    \fn template <class T> template <class X> QPointer<T>::QPointer(const QPointer<X> &other)
+    \since 6.6
+
+    Conversion constructor. Constructs a new QPointer by moving or copying from
+    \a other.
+
+    The moved-from QPointer is reset to nullptr.
+
+    \note These constructors participate in overload resolution only if \c{X*}
+    is convertible to \c{T*}.
+*/
+
+/*!
+    \fn template <class T> template <class X> QPointer<T> &QPointer<T>::operator=(const QPointer<X> &other)
+    \since 6.6
+
+    Conversion assignment operator. Makes this guarded pointer guard the
+    same object guarded by \a other.
+
+    \note This operator participates  in overload resolution only if \c{X*}
+    is convertible to \c{T*}.
+*/
+
 /*!
     \fn template <class T> void QPointer<T>::swap(QPointer &other)
     \since 5.6
diff --git a/src/corelib/kernel/qpointer.h b/src/corelib/kernel/qpointer.h
index 2c824411..7de159a5 100644
--- a/src/corelib/kernel/qpointer.h
+++ b/src/corelib/kernel/qpointer.h
@@ -18,15 +18,38 @@ class QPointer
 {
     static_assert(!std::is_pointer<T>::value, "QPointer's template type must not be a pointer type");
 
+    template <typename X>
+    using if_convertible = std::enable_if_t<std::is_convertible_v<X*, T*>, bool>;
+    template <typename X>
+    friend class QPointer;
+
     using QObjectType =
         typename std::conditional<std::is_const<T>::value, const QObject, QObject>::type;
     QWeakPointer<QObjectType> wp;
 public:
+    Q_NODISCARD_CTOR
     QPointer() = default;
+    Q_NODISCARD_CTOR
     inline QPointer(T *p) : wp(p, true) { }
     // compiler-generated copy/move ctor/assignment operators are fine!
     // compiler-generated dtor is fine!
 
+    template <typename X, if_convertible<X> = true>
+    Q_NODISCARD_CTOR
+    QPointer(QPointer<X> &&other) noexcept
+        : wp(std::exchange(other.wp, nullptr).internalData(), true) {}
+    template <typename X, if_convertible<X> = true>
+    Q_NODISCARD_CTOR
+    QPointer(const QPointer<X> &other) noexcept
+        : wp(other.wp.internalData(), true) {}
+
+    template <typename X, if_convertible<X> = true>
+    QPointer &operator=(const QPointer<X> &other)
+    {
+        wp.assign(other.data());
+        return *this;
+    }
+
 #ifdef Q_QDOC
     // Stop qdoc from complaining about missing function
     ~QPointer();
diff --git a/src/corelib/kernel/qproperty.cpp b/src/corelib/kernel/qproperty.cpp
index 40ad4e32..b6e4caa7 100644
--- a/src/corelib/kernel/qproperty.cpp
+++ b/src/corelib/kernel/qproperty.cpp
@@ -161,7 +161,7 @@ struct QPropertyDelayedNotifications
         delayed->d_ptr = 0;
 
         if (observer)
-            observer.notify<QPropertyObserverPointer::Notify::OnlyChangeHandlers>(delayed->propertyData);
+            observer.notify(delayed->propertyData);
     }
 };
 
@@ -185,7 +185,7 @@ Q_CONSTINIT static thread_local QBindingStatus bindingStatus;
     properties need to be updated, preventing any external observer from noticing an inconsistent
     state.
 
-    \sa Qt::endPropertyUpdateGroup
+    \sa Qt::endPropertyUpdateGroup, QScopedPropertyUpdateGroup
 */
 void Qt::beginPropertyUpdateGroup()
 {
@@ -205,7 +205,7 @@ void Qt::beginPropertyUpdateGroup()
     \warning Calling endPropertyUpdateGroup without a preceding call to beginPropertyUpdateGroup
     results in undefined behavior.
 
-    \sa Qt::beginPropertyUpdateGroup
+    \sa Qt::beginPropertyUpdateGroup, QScopedPropertyUpdateGroup
 */
 void Qt::endPropertyUpdateGroup()
 {
@@ -235,12 +235,45 @@ void Qt::endPropertyUpdateGroup()
     while (data) {
         for (qsizetype i = 0; i < data->used; ++i)
             data->notify(i);
-        auto *next = data->next;
-        delete data;
-        data = next;
+        delete std::exchange(data, data->next);
     }
 }
 
+/*!
+    \since 6.6
+    \class QScopedPropertyUpdateGroup
+    \inmodule QtCore
+    \ingroup tools
+    \brief RAII class around Qt::beginPropertyUpdateGroup()/Qt::endPropertyUpdateGroup().
+
+    This class calls Qt::beginPropertyUpdateGroup() in its constructor and
+    Qt::endPropertyUpdateGroup() in its destructor, making sure the latter
+    function is reliably called even in the presence of early returns or thrown
+    exceptions.
+
+    \note Qt::endPropertyUpdateGroup() may re-throw exceptions thrown by
+    binding evaluations. This means your application may crash
+    (\c{std::terminate()} called) if another exception is causing
+    QScopedPropertyUpdateGroup's destructor to be called during stack
+    unwinding. If you expect exceptions from binding evaluations, use manual
+    Qt::endPropertyUpdateGroup() calls and \c{try}/\c{catch} blocks.
+
+    \sa QProperty
+*/
+
+/*!
+    \fn QScopedPropertyUpdateGroup::QScopedPropertyUpdateGroup()
+
+    Calls Qt::beginPropertyUpdateGroup().
+*/
+
+/*!
+    \fn QScopedPropertyUpdateGroup::~QScopedPropertyUpdateGroup()
+
+    Calls Qt::endPropertyUpdateGroup().
+*/
+
+
 // check everything stored in QPropertyBindingPrivate's union is trivially destructible
 // (though the compiler would also complain if that weren't the case)
 static_assert(std::is_trivially_destructible_v<QPropertyBindingSourceLocation>);
@@ -288,22 +321,6 @@ bool QPropertyBindingPrivate::evaluateRecursive(PendingBindingObserverList &bind
     return evaluateRecursive_inline(bindingObservers, status);
 }
 
-void QPropertyBindingPrivate::notifyRecursive()
-{
-    if (!pendingNotify)
-        return;
-    pendingNotify = false;
-    Q_ASSERT(!updating);
-    updating = true;
-    if (firstObserver) {
-        firstObserver.noSelfDependencies(this);
-        firstObserver.notify(propertyDataPtr);
-    }
-    if (hasStaticObserver)
-        staticObserverCallback(propertyDataPtr);
-    updating = false;
-}
-
 void QPropertyBindingPrivate::notifyNonRecursive(const PendingBindingObserverList &bindingObservers)
 {
     notifyNonRecursive();
@@ -321,7 +338,7 @@ QPropertyBindingPrivate::NotificationState QPropertyBindingPrivate::notifyNonRec
     updating = true;
     if (firstObserver) {
         firstObserver.noSelfDependencies(this);
-        firstObserver.notifyOnlyChangeHandler(propertyDataPtr);
+        firstObserver.notify(propertyDataPtr);
     }
     if (hasStaticObserver)
         staticObserverCallback(propertyDataPtr);
@@ -621,7 +638,7 @@ void QPropertyBindingData::notifyObservers(QUntypedPropertyData *propertyDataPtr
             if (storage)
                 d = QPropertyBindingDataPointer {storage->bindingData(propertyDataPtr)};
             if (QPropertyObserverPointer observer = d.firstObserver())
-                observer.notifyOnlyChangeHandler(propertyDataPtr);
+                observer.notify(propertyDataPtr);
             for (auto &&bindingObserver: bindingObservers)
                 bindingObserver.binding()->notifyNonRecursive();
         }
@@ -658,11 +675,15 @@ QPropertyObserver::QPropertyObserver(ChangeHandler changeHandler)
     d.setChangeHandler(changeHandler);
 }
 
+#if QT_DEPRECATED_SINCE(6, 6)
 QPropertyObserver::QPropertyObserver(QUntypedPropertyData *data)
 {
+    QT_WARNING_PUSH QT_WARNING_DISABLE_DEPRECATED
     aliasData = data;
     next.setTag(ObserverIsAlias);
+    QT_WARNING_POP
 }
+#endif
 
 /*! \internal
 */
@@ -741,7 +762,7 @@ void QPropertyObserverPointer::setBindingToNotify(QPropertyBindingPrivate *bindi
 
 /*!
     \internal
-    The same as as setBindingToNotify, but assumes that the tag is already correct.
+    The same as setBindingToNotify, but assumes that the tag is already correct.
  */
 void QPropertyObserverPointer::setBindingToNotify_unsafe(QPropertyBindingPrivate *binding)
 {
@@ -1349,15 +1370,6 @@ QString QPropertyBindingError::description() const
   Assigns \a newValue to this property and returns a reference to this QProperty.
 */
 
-/*!
-  \fn template <typename T> QProperty<T> &QProperty<T>::operator=(const QPropertyBinding<T> &newBinding)
-
-  Associates the value of this property with the provided \a newBinding
-  expression and returns a reference to this property. The property's value is
-  set to the result of evaluating the new binding. Whenever a dependency of the
-  binding changes, the binding will be re-evaluated.
-*/
-
 /*!
   \fn template <typename T> QPropertyBinding<T> QProperty<T>::setBinding(const QPropertyBinding<T> &newBinding)
 
@@ -2022,26 +2034,6 @@ QString QPropertyBindingError::description() const
   QPropertyAlias.
 */
 
-/*!
-  \fn template <typename T> QPropertyAlias<T> &QPropertyAlias<T>::operator=(T &&newValue)
-  \overload
-
-  Assigns \a newValue to the aliased property and returns a reference to this
-  QPropertyAlias.
-*/
-
-/*!
-  \fn template <typename T> QPropertyAlias<T> &QPropertyAlias<T>::operator=(const QPropertyBinding<T> &newBinding)
-  \overload
-
-  Associates the value of the aliased property with the provided \a newBinding
-  expression and returns a reference to this alias. The property's value is set
-  to the result of evaluating the new binding. Whenever a dependency of the
-  binding changes, the binding will be re-evaluated, and the property's value
-  gets updated accordingly.
-
-*/
-
 /*!
   \fn template <typename T> QPropertyBinding<T> QPropertyAlias<T>::setBinding(const QPropertyBinding<T> &newBinding)
 
@@ -2494,8 +2486,13 @@ QPropertyAdaptorSlotObject::QPropertyAdaptorSlotObject(QObject *o, const QMetaPr
 {
 }
 
+#if QT_VERSION < QT_VERSION_CHECK(7, 0, 0)
 void QPropertyAdaptorSlotObject::impl(int which, QSlotObjectBase *this_, QObject *r, void **a,
                                       bool *ret)
+#else
+void QPropertyAdaptorSlotObject::impl(QSlotObjectBase *this_, QObject *r, void **a, int which,
+                                      bool *ret)
+#endif
 {
     auto self = static_cast<QPropertyAdaptorSlotObject *>(this_);
     switch (which) {
diff --git a/src/corelib/kernel/qproperty.h b/src/corelib/kernel/qproperty.h
index be960552..32d7a445 100644
--- a/src/corelib/kernel/qproperty.h
+++ b/src/corelib/kernel/qproperty.h
@@ -53,6 +53,17 @@ Q_CORE_EXPORT void beginPropertyUpdateGroup();
 Q_CORE_EXPORT void endPropertyUpdateGroup();
 }
 
+class QScopedPropertyUpdateGroup
+{
+    Q_DISABLE_COPY_MOVE(QScopedPropertyUpdateGroup)
+public:
+    Q_NODISCARD_CTOR
+    QScopedPropertyUpdateGroup()
+    { Qt::beginPropertyUpdateGroup(); }
+    ~QScopedPropertyUpdateGroup() noexcept(false)
+    { Qt::endPropertyUpdateGroup(); }
+};
+
 template <typename T>
 class QPropertyData : public QUntypedPropertyData
 {
@@ -217,7 +228,9 @@ public:
         ObserverNotifiesBinding, // observer was installed to notify bindings that obsverved property changed
         ObserverNotifiesChangeHandler, // observer is a change handler, which runs on every change
         ObserverIsPlaceholder,  // the observer before this one is currently evaluated in QPropertyObserver::notifyObservers.
-        ObserverIsAlias
+#if QT_DEPRECATED_SINCE(6, 6)
+        ObserverIsAlias QT_DEPRECATED_VERSION_X_6_6("Use QProperty and add a binding to the target.")
+#endif
     };
 protected:
     using ChangeHandler = void (*)(QPropertyObserver*, QUntypedPropertyData *);
@@ -257,7 +270,10 @@ public:
 
 protected:
     QPropertyObserver(ChangeHandler changeHandler);
+#if QT_DEPRECATED_SINCE(6, 6)
+    QT_DEPRECATED_VERSION_X_6_6("This constructor was only meant for internal use. Use QProperty and add a binding to the target.")
     QPropertyObserver(QUntypedPropertyData *aliasedPropertyPtr);
+#endif
 
     QUntypedPropertyData *aliasedProperty() const
     {
@@ -272,10 +288,11 @@ private:
 };
 
 template <typename Functor>
-class [[nodiscard]] QPropertyChangeHandler : public QPropertyObserver
+class QPropertyChangeHandler : public QPropertyObserver
 {
     Functor m_handler;
 public:
+    Q_NODISCARD_CTOR
     QPropertyChangeHandler(Functor handler)
         : QPropertyObserver([](QPropertyObserver *self, QUntypedPropertyData *) {
               auto This = static_cast<QPropertyChangeHandler<Functor>*>(self);
@@ -286,6 +303,7 @@ public:
     }
 
     template<typename Property, typename = typename Property::InheritsQUntypedPropertyData>
+    Q_NODISCARD_CTOR
     QPropertyChangeHandler(const Property &property, Functor handler)
         : QPropertyObserver([](QPropertyObserver *self, QUntypedPropertyData *) {
               auto This = static_cast<QPropertyChangeHandler<Functor>*>(self);
@@ -297,12 +315,14 @@ public:
     }
 };
 
-class [[nodiscard]] QPropertyNotifier : public QPropertyObserver
+class QPropertyNotifier : public QPropertyObserver
 {
     std::function<void()> m_handler;
 public:
+    Q_NODISCARD_CTOR
     QPropertyNotifier() = default;
     template<typename Functor>
+    Q_NODISCARD_CTOR
     QPropertyNotifier(Functor handler)
         : QPropertyObserver([](QPropertyObserver *self, QUntypedPropertyData *) {
             auto This = static_cast<QPropertyNotifier *>(self);
@@ -313,6 +333,7 @@ public:
     }
 
     template<typename Functor, typename Property, typename = typename Property::InheritsQUntypedPropertyData>
+    Q_NODISCARD_CTOR
     QPropertyNotifier(const Property &property, Functor handler)
         : QPropertyObserver([](QPropertyObserver *self, QUntypedPropertyData *) {
             auto This = static_cast<QPropertyNotifier *>(self);
@@ -867,13 +888,16 @@ public:
     }
 };
 
+#if QT_DEPRECATED_SINCE(6, 6)
 template<typename T>
-class QPropertyAlias : public QPropertyObserver
+class QT_DEPRECATED_VERSION_X_6_6("Class was only meant for internal use, use a QProperty and add a binding to the target")
+QPropertyAlias : public QPropertyObserver
 {
     Q_DISABLE_COPY_MOVE(QPropertyAlias)
     const QtPrivate::QBindableInterface *iface = nullptr;
 
 public:
+    QT_WARNING_PUSH QT_WARNING_DISABLE_DEPRECATED
     QPropertyAlias(QProperty<T> *property)
         : QPropertyObserver(property),
           iface(&QtPrivate::QBindableInterfaceForProperty<QProperty<T>>::iface)
@@ -989,7 +1013,9 @@ public:
     {
         return aliasedProperty() != nullptr;
     }
+    QT_WARNING_POP
 };
+#endif // QT_DEPRECATED_SINCE(6, 6)
 
 template<typename Class, typename T, auto Offset, auto Signal = nullptr>
 class QObjectBindableProperty : public QPropertyData<T>
diff --git a/src/corelib/kernel/qproperty_p.h b/src/corelib/kernel/qproperty_p.h
index 4dfa345e..a263fe37 100644
--- a/src/corelib/kernel/qproperty_p.h
+++ b/src/corelib/kernel/qproperty_p.h
@@ -94,11 +94,12 @@ struct QPropertyBindingDataPointer
     }
 };
 
-struct [[nodiscard]] QPropertyObserverNodeProtector
+struct QPropertyObserverNodeProtector
 {
     Q_DISABLE_COPY_MOVE(QPropertyObserverNodeProtector)
 
     QPropertyObserverBase m_placeHolder;
+    Q_NODISCARD_CTOR
     QPropertyObserverNodeProtector(QPropertyObserver *observer)
     {
         // insert m_placeholder after observer into the linked list
@@ -124,13 +125,21 @@ struct QPropertyObserverPointer
     void unlink()
     {
         unlink_common();
+#if QT_DEPRECATED_SINCE(6, 6)
+        QT_WARNING_PUSH QT_WARNING_DISABLE_DEPRECATED
         if (ptr->next.tag() == QPropertyObserver::ObserverIsAlias)
             ptr->aliasData = nullptr;
+        QT_WARNING_POP
+#endif
     }
 
     void unlink_fast()
     {
+#if QT_DEPRECATED_SINCE(6, 6)
+        QT_WARNING_PUSH QT_WARNING_DISABLE_DEPRECATED
         Q_ASSERT(ptr->next.tag() != QPropertyObserver::ObserverIsAlias);
+        QT_WARNING_POP
+#endif
         unlink_common();
     }
 
@@ -140,9 +149,7 @@ struct QPropertyObserverPointer
 
     enum class Notify {Everything, OnlyChangeHandlers};
 
-    template<Notify notifyPolicy = Notify::Everything>
     void notify(QUntypedPropertyData *propertyDataPtr);
-    void notifyOnlyChangeHandler(QUntypedPropertyData *propertyDataPtr);
 #ifndef QT_NO_DEBUG
     void noSelfDependencies(QPropertyBindingPrivate *binding);
 #else
@@ -368,7 +375,6 @@ public:
 
     bool Q_ALWAYS_INLINE evaluateRecursive_inline(PendingBindingObserverList &bindingObservers, QBindingStatus *status);
 
-    void notifyRecursive();
     void notifyNonRecursive(const PendingBindingObserverList &bindingObservers);
     enum NotificationState : bool { Delayed, Sent };
     NotificationState notifyNonRecursive();
@@ -629,7 +635,7 @@ public:
                                 == QtPrivate::QPropertyBindingData::Evaluated) {
                             // evaluateBindings() can trash the observers. We need to re-fetch here.
                             if (QPropertyObserverPointer observer = d.firstObserver())
-                                observer.notifyOnlyChangeHandler(this);
+                                observer.notify(this);
                             for (auto&& bindingObserver: bindingObservers)
                                 bindingObserver.binding()->notifyNonRecursive();
                         }
@@ -831,7 +837,14 @@ inline bool QPropertyBindingPrivate::evaluateRecursive_inline(PendingBindingObse
     return true;
 }
 
-template<QPropertyObserverPointer::Notify notifyPolicy>
+/*!
+    \internal
+
+    Walks through the list of property observers, and calls any ChangeHandler
+    found there.
+    It doesn't do anything with bindings, which are only handled in
+    QPropertyBindingPrivate::evaluateRecursive.
+ */
 inline void QPropertyObserverPointer::notify(QUntypedPropertyData *propertyDataPtr)
 {
     auto observer = const_cast<QPropertyObserver*>(ptr);
@@ -870,31 +883,22 @@ inline void QPropertyObserverPointer::notify(QUntypedPropertyData *propertyDataP
             break;
         }
         case QPropertyObserver::ObserverNotifiesBinding:
-        {
-            if constexpr (notifyPolicy == Notify::Everything) {
-                auto bindingToNotify =  observer->binding;
-                QPropertyObserverNodeProtector protector(observer);
-                bindingToNotify->notifyRecursive();
-                next = protector.next();
-            }
             break;
-        }
         case QPropertyObserver::ObserverIsPlaceholder:
             // recursion is already properly handled somewhere else
             break;
+#if QT_DEPRECATED_SINCE(6, 6)
+        QT_WARNING_PUSH QT_WARNING_DISABLE_DEPRECATED
         case QPropertyObserver::ObserverIsAlias:
             break;
+        QT_WARNING_POP
+#endif
         default: Q_UNREACHABLE();
         }
         observer = next;
     }
 }
 
-inline void QPropertyObserverPointer::notifyOnlyChangeHandler(QUntypedPropertyData *propertyDataPtr)
-{
-    notify<Notify::OnlyChangeHandlers>(propertyDataPtr);
-}
-
 inline QPropertyObserverNodeProtector::~QPropertyObserverNodeProtector()
 {
     QPropertyObserverPointer d{static_cast<QPropertyObserver *>(&m_placeHolder)};
@@ -920,7 +924,11 @@ class QPropertyAdaptorSlotObject : public QUntypedPropertyData, public QSlotObje
     QObject *obj;
     QMetaProperty metaProperty_;
 
+#if QT_VERSION < QT_VERSION_CHECK(7, 0, 0)
     static void impl(int which, QSlotObjectBase *this_, QObject *r, void **a, bool *ret);
+#else
+    static void impl(QSlotObjectBase *this_, QObject *r, void **a, int which, bool *ret);
+#endif
 
     QPropertyAdaptorSlotObject(QObject *o, const QMetaProperty& p);
 
diff --git a/src/corelib/kernel/qsharedmemory.cpp b/src/corelib/kernel/qsharedmemory.cpp
deleted file mode 100644
index 24495641..00000000
--- a/src/corelib/kernel/qsharedmemory.cpp
+++ /dev/null
@@ -1,714 +0,0 @@
-// Copyright (C) 2016 The Qt Company Ltd.
-// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
-
-#include "qsharedmemory.h"
-#include "qsharedmemory_p.h"
-#include "qsystemsemaphore.h"
-#include <qdir.h>
-#include <qcryptographichash.h>
-#include <qdebug.h>
-#ifdef Q_OS_WIN
-#  include <qt_windows.h>
-#endif
-
-#if defined(Q_OS_DARWIN)
-#  include "qcore_mac_p.h"
-#  if !defined(SHM_NAME_MAX)
-     // Based on PSEMNAMLEN in XNU's posix_sem.c, which would
-     // indicate the max length is 31, _excluding_ the zero
-     // terminator. But in practice (possibly due to an off-
-     // by-one bug in the kernel) the usable bytes are only 30.
-#    define SHM_NAME_MAX 30
-#  endif
-#endif
-
-QT_BEGIN_NAMESPACE
-
-using namespace Qt::StringLiterals;
-
-#if QT_CONFIG(sharedmemory) || QT_CONFIG(systemsemaphore)
-/*!
-    \internal
-
-    Generate a string from the key which can be any unicode string into
-    the subset that the win/unix kernel allows.
-
-    On Unix this will be a file name
-  */
-QString
-QSharedMemoryPrivate::makePlatformSafeKey(const QString &key,
-                                          const QString &prefix)
-{
-    if (key.isEmpty())
-        return QString();
-
-    QByteArray hex = QCryptographicHash::hash(key.toUtf8(), QCryptographicHash::Sha1).toHex();
-
-#if defined(Q_OS_DARWIN) && defined(QT_POSIX_IPC)
-    if (qt_apple_isSandboxed()) {
-        // Sandboxed applications on Apple platforms require the shared memory name
-        // to be in the form <application group identifier>/<custom identifier>.
-        // Since we don't know which application group identifier the user wants
-        // to apply, we instead document that requirement, and use the key directly.
-        return key;
-    } else {
-        // The shared memory name limit on Apple platforms is very low (30 characters),
-        // so we can't use the logic below of combining the prefix, key, and a hash,
-        // to ensure a unique and valid name. Instead we use the first part of the
-        // hash, which should still long enough to avoid collisions in practice.
-        return u'/' + hex.left(SHM_NAME_MAX - 1);
-    }
-#endif
-
-    QString result = prefix;
-    for (QChar ch : key) {
-        if ((ch >= u'a' && ch <= u'z') ||
-           (ch >= u'A' && ch <= u'Z'))
-           result += ch;
-    }
-    result.append(QLatin1StringView(hex));
-
-#ifdef Q_OS_WIN
-    return result;
-#elif defined(QT_POSIX_IPC)
-    return u'/' + result;
-#else
-    return QDir::tempPath() + u'/' + result;
-#endif
-}
-#endif // QT_CONFIG(sharedmemory) || QT_CONFIG(systemsemaphore)
-
-#if QT_CONFIG(sharedmemory)
-
-/*!
-  \class QSharedMemory
-  \inmodule QtCore
-  \since 4.4
-
-  \brief The QSharedMemory class provides access to a shared memory segment.
-
-  QSharedMemory provides access to a shared memory segment by multiple
-  threads and processes. It also provides a way for a single thread or
-  process to lock the memory for exclusive access.
-
-  When using this class, be aware of the following platform
-  differences:
-
-  \list
-
-    \li Windows: QSharedMemory does not "own" the shared memory segment.
-    When all threads or processes that have an instance of QSharedMemory
-    attached to a particular shared memory segment have either destroyed
-    their instance of QSharedMemory or exited, the Windows kernel
-    releases the shared memory segment automatically.
-
-    \li Unix: QSharedMemory "owns" the shared memory segment. When the
-    last thread or process that has an instance of QSharedMemory
-    attached to a particular shared memory segment detaches from the
-    segment by destroying its instance of QSharedMemory, the destructor
-    releases the shared memory segment. But if that last thread or
-    process crashes without running the QSharedMemory destructor, the
-    shared memory segment survives the crash.
-
-    \li Unix: QSharedMemory can be implemented by one of two different
-    backends, selected at Qt build time: System V or POSIX. Qt defaults to
-    using the System V API if it is available, and POSIX if not. These two
-    backends do not interoperate, so two applications must ensure they use the
-    same one, even if the native key (see setNativeKey()) is the same.
-
-    The POSIX backend can be explicitly selected using the
-    \c{-feature-ipc_posix} option to the Qt configure script. If it is enabled,
-    the \c{QT_POSIX_IPC} macro will be defined.
-
-    \li Sandboxed applications on Apple platforms (including apps
-    shipped through the Apple App Store): This environment requires
-    the use of POSIX shared memory (instead of System V shared memory).
-
-    Qt for iOS is built with support for POSIX shared memory out of the box.
-    However, Qt for \macos builds (including those from the Qt installer) default
-    to System V, making them unsuitable for App Store submission if QSharedMemory
-    is needed. See above for instructions to explicitly select the POSIX backend
-    when building Qt.
-
-    In addition, in a sandboxed environment, the following caveats apply:
-
-    \list
-      \li The key must be in the form \c {<application group identifier>/<custom identifier>},
-      as documented \l {https://developer.apple.com/library/archive/documentation/Security/Conceptual/AppSandboxDesignGuide/AppSandboxInDepth/AppSandboxInDepth.html#//apple_ref/doc/uid/TP40011183-CH3-SW24}
-      {here} and \l {https://developer.apple.com/documentation/bundleresources/entitlements/com_apple_security_application-groups}
-      {here}.
-
-      \li The key length is limited to 30 characters.
-
-      \li On process exit, the named shared memory entries are not
-      cleaned up, so restarting the application and re-creating the
-      shared memory under the same name will fail. To work around this,
-      fall back to attaching to the existing shared memory entry:
-
-      \code
-
-          QSharedMemory shm("DEVTEAMID.app-group/shared");
-          if (!shm.create(42) && shm.error() == QSharedMemory::AlreadyExists)
-              shm.attach();
-
-      \endcode
-
-    \endlist
-
-    \li Android: QSharedMemory is not supported.
-
-  \endlist
-
-  Remember to lock the shared memory with lock() before reading from
-  or writing to the shared memory, and remember to release the lock
-  with unlock() after you are done.
-
-  QSharedMemory automatically destroys the shared memory segment when
-  the last instance of QSharedMemory is detached from the segment, and
-  no references to the segment remain.
-
-  \warning QSharedMemory changes the key in a Qt-specific way, unless otherwise
-  specified. Interoperation with non-Qt applications is achieved by first creating
-  a default shared memory with QSharedMemory() and then setting a native key with
-  setNativeKey(), after ensuring they use the same low-level API (System V or
-  POSIX). When using native keys, shared memory is not protected against multiple
-  accesses on it (for example, unable to lock()) and a user-defined mechanism
-  should be used to achieve such protection.
-
-  \section2 Alternative: Memory-Mapped File
-
-  Another way to share memory between processes is by opening the same file
-  using \l QFile and mapping it into memory using QFile::map() (without
-  specifying the QFileDevice::MapPrivateOption option). Any writes to the
-  mapped segment will be observed by all other processes that have mapped the
-  same file. This solution has the major advantages of being independent of the
-  backend API and of being simpler to interoperate with from non-Qt
-  applications. And since \l{QTemporaryFile} is a \l{QFile}, applications can
-  use that class to achieve clean-up semantics and to create unique shared
-  memory segments too.
-
-  To achieve locking of the shared memory segment, applications will need to
-  deploy their own mechanisms. This can be achieved by using \l
-  QBasicAtomicInteger or \c{std::atomic} in a pre-determined offset in the
-  segment itself. Higher-level locking primitives may be available on some
-  operating systems; for example, on Linux, \c{pthread_mutex_create()} can be
-  passed a flag to indicate that the mutex resides in a shared memory segment.
-
-  A major drawback of using file-backed shared memory is that the operating
-  system will attempt to write the data to permanent storage, possibly causing
-  noticeable performance penalties. To avoid this, applications should locate a
-  RAM-backed filesystem, such as \c{tmpfs} on Linux (see
-  QStorageInfo::fileSystemType()), or pass a flag to the native file-opening
-  function to inform the OS to avoid committing the contents to storage.
-
-  File-backed shared memory must be used with care if another process
-  participating is untrusted. The files may be truncated/shrunk and cause
-  applications accessing memory beyond the file's size to crash.
-
-  \section3 Linux hints on memory-mapped files
-
-  On modern Linux systems, while the \c{/tmp} directory is often a \c{tmpfs}
-  mount point, that is not a requirement. However, the \c{/dev/shm} directory
-  is required to be a \c{tmpfs} and exists for this very purpose. Do note that
-  it is world-readable and writable (like \c{/tmp} and \c{/var/tmp}), so one
-  must be careful of the contents revealed there. Another alternative is to use
-  the XDG Runtime Directory (see QStandardPaths::writableLocation() and
-  \l{QStandardPaths::RuntimeLocation}), which on Linux systems using systemd is
-  a user-specific \c{tmpfs}.
-
-  An even more secure solution is to create a "memfd" using \c{memfd_create(2)}
-  and use interprocess communication to pass the file descriptor, like
-  \l{QDBusUnixFileDescriptor} or by letting the child process of a \l{QProcess}
-  inherit it. "memfds" can also be sealed against being shrunk, so they are
-  safe to be used when communicating with processes with a different privilege
-  level.
-
-  \section3 FreeBSD hints on memory-mapped files
-
-  FreeBSD also has \c{memfd_create(2)} and can pass file descriptors to other
-  processes using the same techniques as Linux. It does not have temporary
-  filesystems mounted by default.
-
-  \section3 Windows hints on memory-mapped files
-
-  On Windows, the application can request the operating system avoid committing
-  the file's contents to permanent storage. This request is performed by
-  passing the \c{FILE_ATTRIBUTE_TEMPORARY} flag in the \c{dwFlagsAndAttributes}
-  \c{CreateFile} Win32 function, the \c{_O_SHORT_LIVED} flag to \c{_open()}
-  low-level function, or by including the modifier "T" to the \c{fopen()} C
-  runtime function.
-
-  There's also a flag to inform the operating system to delete the file when
-  the last handle to it is closed (\c{FILE_FLAG_DELETE_ON_CLOSE},
-  \c{_O_TEMPORARY}, and the "D" modifier), but do note that all processes
-  attempting to open the file must agree on using this flag or not using it. A
-  mismatch will likely cause a sharing violation and failure to open the file.
- */
-
-/*!
-  \overload QSharedMemory()
-
-  Constructs a shared memory object with the given \a parent.  The
-  shared memory object's key is not set by the constructor, so the
-  shared memory object does not have an underlying shared memory
-  segment attached. The key must be set with setKey() or setNativeKey()
-  before create() or attach() can be used.
-
-  \sa setKey()
- */
-
-QSharedMemory::QSharedMemory(QObject *parent)
-  : QObject(*new QSharedMemoryPrivate, parent)
-{
-}
-
-/*!
-  Constructs a shared memory object with the given \a parent and with
-  its key set to \a key. Because its key is set, its create() and
-  attach() functions can be called.
-
-  \sa setKey(), create(), attach()
- */
-QSharedMemory::QSharedMemory(const QString &key, QObject *parent)
-    : QObject(*new QSharedMemoryPrivate, parent)
-{
-    setKey(key);
-}
-
-/*!
-  The destructor clears the key, which forces the shared memory object
-  to \l {detach()} {detach} from its underlying shared memory
-  segment. If this shared memory object is the last one connected to
-  the shared memory segment, the detach() operation destroys the
-  shared memory segment.
-
-  \sa detach(), isAttached()
- */
-QSharedMemory::~QSharedMemory()
-{
-    setKey(QString());
-}
-
-/*!
-  Sets the platform independent \a key for this shared memory object. If \a key
-  is the same as the current key, the function returns without doing anything.
-
-  You can call key() to retrieve the platform independent key. Internally,
-  QSharedMemory converts this key into a platform specific key. If you instead
-  call nativeKey(), you will get the platform specific, converted key.
-
-  If the shared memory object is attached to an underlying shared memory
-  segment, it will \l {detach()} {detach} from it before setting the new key.
-  This function does not do an attach().
-
-  \sa key(), nativeKey(), isAttached()
-*/
-void QSharedMemory::setKey(const QString &key)
-{
-    Q_D(QSharedMemory);
-    if (key == d->key && d->makePlatformSafeKey(key) == d->nativeKey)
-        return;
-
-    if (isAttached())
-        detach();
-    d->cleanHandle();
-    d->key = key;
-    d->nativeKey = d->makePlatformSafeKey(key);
-}
-
-/*!
-  \since 4.8
-
-  Sets the native, platform specific, \a key for this shared memory object. If
-  \a key is the same as the current native key, the function returns without
-  doing anything. If all you want is to assign a key to a segment, you should
-  call setKey() instead.
-
-  You can call nativeKey() to retrieve the native key. If a native key has been
-  assigned, calling key() will return a null string.
-
-  If the shared memory object is attached to an underlying shared memory
-  segment, it will \l {detach()} {detach} from it before setting the new key.
-  This function does not do an attach().
-
-  The application will not be portable if you set a native key.
-
-  \sa nativeKey(), key(), isAttached()
-*/
-void QSharedMemory::setNativeKey(const QString &key)
-{
-    Q_D(QSharedMemory);
-    if (key == d->nativeKey && d->key.isNull())
-        return;
-
-    if (isAttached())
-        detach();
-    d->cleanHandle();
-    d->key = QString();
-    d->nativeKey = key;
-}
-
-bool QSharedMemoryPrivate::initKey()
-{
-    if (!cleanHandle())
-        return false;
-#if QT_CONFIG(systemsemaphore)
-    systemSemaphore.setKey(QString(), 1);
-    systemSemaphore.setKey(key, 1);
-    if (systemSemaphore.error() != QSystemSemaphore::NoError) {
-        QString function = "QSharedMemoryPrivate::initKey"_L1;
-        errorString = QSharedMemory::tr("%1: unable to set key on lock").arg(function);
-        switch(systemSemaphore.error()) {
-        case QSystemSemaphore::PermissionDenied:
-            error = QSharedMemory::PermissionDenied;
-            break;
-        case QSystemSemaphore::KeyError:
-            error = QSharedMemory::KeyError;
-            break;
-        case QSystemSemaphore::AlreadyExists:
-            error = QSharedMemory::AlreadyExists;
-            break;
-        case QSystemSemaphore::NotFound:
-            error = QSharedMemory::NotFound;
-            break;
-        case QSystemSemaphore::OutOfResources:
-            error = QSharedMemory::OutOfResources;
-            break;
-        case QSystemSemaphore::UnknownError:
-        default:
-            error = QSharedMemory::UnknownError;
-            break;
-        }
-        return false;
-    }
-#endif
-    errorString = QString();
-    error = QSharedMemory::NoError;
-    return true;
-}
-
-/*!
-  Returns the key assigned with setKey() to this shared memory, or a null key
-  if no key has been assigned, or if the segment is using a nativeKey(). The
-  key is the identifier used by Qt applications to identify the shared memory
-  segment.
-
-  You can find the native, platform specific, key used by the operating system
-  by calling nativeKey().
-
-  \sa setKey(), setNativeKey()
- */
-QString QSharedMemory::key() const
-{
-    Q_D(const QSharedMemory);
-    return d->key;
-}
-
-/*!
-  \since 4.8
-
-  Returns the native, platform specific, key for this shared memory object. The
-  native key is the identifier used by the operating system to identify the
-  shared memory segment.
-
-  You can use the native key to access shared memory segments that have not
-  been created by Qt, or to grant shared memory access to non-Qt applications.
-
-  \sa setKey(), setNativeKey()
-*/
-QString QSharedMemory::nativeKey() const
-{
-    Q_D(const QSharedMemory);
-    return d->nativeKey;
-}
-
-/*!
-  Creates a shared memory segment of \a size bytes with the key passed to the
-  constructor, set with setKey() or set with setNativeKey(), then attaches to
-  the new shared memory segment with the given access \a mode and returns
-  \tt true. If a shared memory segment identified by the key already exists,
-  the attach operation is not performed and \tt false is returned. When the
-  return value is \tt false, call error() to determine which error occurred.
-
-  \sa error()
- */
-bool QSharedMemory::create(qsizetype size, AccessMode mode)
-{
-    Q_D(QSharedMemory);
-
-    if (!d->initKey())
-        return false;
-
-#if QT_CONFIG(systemsemaphore)
-#ifndef Q_OS_WIN
-    // Take ownership and force set initialValue because the semaphore
-    // might have already existed from a previous crash.
-    d->systemSemaphore.setKey(d->key, 1, QSystemSemaphore::Create);
-#endif
-#endif
-
-    QString function = "QSharedMemory::create"_L1;
-#if QT_CONFIG(systemsemaphore)
-    QSharedMemoryLocker lock(this);
-    if (!d->key.isNull() && !d->tryLocker(&lock, function))
-        return false;
-#endif
-
-    if (size <= 0) {
-        d->error = QSharedMemory::InvalidSize;
-        d->errorString =
-            QSharedMemory::tr("%1: create size is less then 0").arg(function);
-        return false;
-    }
-
-    if (!d->create(size))
-        return false;
-
-    return d->attach(mode);
-}
-
-/*!
-  Returns the size of the attached shared memory segment. If no shared
-  memory segment is attached, 0 is returned.
-
-  \note The size of the segment may be larger than the requested size that was
-  passed to create().
-
-  \sa create(), attach()
- */
-qsizetype QSharedMemory::size() const
-{
-    Q_D(const QSharedMemory);
-    return d->size;
-}
-
-/*!
-  \enum QSharedMemory::AccessMode
-
-  \value ReadOnly The shared memory segment is read-only. Writing to
-  the shared memory segment is not allowed. An attempt to write to a
-  shared memory segment created with ReadOnly causes the program to
-  abort.
-
-  \value ReadWrite Reading and writing the shared memory segment are
-  both allowed.
-*/
-
-/*!
-  Attempts to attach the process to the shared memory segment
-  identified by the key that was passed to the constructor or to a
-  call to setKey() or setNativeKey(). The access \a mode is \l {QSharedMemory::}
-  {ReadWrite} by default. It can also be \l {QSharedMemory::}
-  {ReadOnly}. Returns \c true if the attach operation is successful. If
-  false is returned, call error() to determine which error occurred.
-  After attaching the shared memory segment, a pointer to the shared
-  memory can be obtained by calling data().
-
-  \sa isAttached(), detach(), create()
- */
-bool QSharedMemory::attach(AccessMode mode)
-{
-    Q_D(QSharedMemory);
-
-    if (isAttached() || !d->initKey())
-        return false;
-#if QT_CONFIG(systemsemaphore)
-    QSharedMemoryLocker lock(this);
-    if (!d->key.isNull() && !d->tryLocker(&lock, "QSharedMemory::attach"_L1))
-        return false;
-#endif
-
-    if (isAttached() || !d->handle())
-        return false;
-
-    return d->attach(mode);
-}
-
-/*!
-  Returns \c true if this process is attached to the shared memory
-  segment.
-
-  \sa attach(), detach()
- */
-bool QSharedMemory::isAttached() const
-{
-    Q_D(const QSharedMemory);
-    return (nullptr != d->memory);
-}
-
-/*!
-  Detaches the process from the shared memory segment. If this was the
-  last process attached to the shared memory segment, then the shared
-  memory segment is released by the system, i.e., the contents are
-  destroyed. The function returns \c true if it detaches the shared
-  memory segment. If it returns \c false, it usually means the segment
-  either isn't attached, or it is locked by another process.
-
-  \sa attach(), isAttached()
- */
-bool QSharedMemory::detach()
-{
-    Q_D(QSharedMemory);
-    if (!isAttached())
-        return false;
-
-#if QT_CONFIG(systemsemaphore)
-    QSharedMemoryLocker lock(this);
-    if (!d->key.isNull() && !d->tryLocker(&lock, "QSharedMemory::detach"_L1))
-        return false;
-#endif
-
-    return d->detach();
-}
-
-/*!
-  Returns a pointer to the contents of the shared memory segment, if
-  one is attached. Otherwise it returns null. Remember to lock the
-  shared memory with lock() before reading from or writing to the
-  shared memory, and remember to release the lock with unlock() after
-  you are done.
-
-  \sa attach()
- */
-void *QSharedMemory::data()
-{
-    Q_D(QSharedMemory);
-    return d->memory;
-}
-
-/*!
-  Returns a const pointer to the contents of the shared memory
-  segment, if one is attached. Otherwise it returns null. Remember to
-  lock the shared memory with lock() before reading from or writing to
-  the shared memory, and remember to release the lock with unlock()
-  after you are done.
-
-  \sa attach(), create()
- */
-const void *QSharedMemory::constData() const
-{
-    Q_D(const QSharedMemory);
-    return d->memory;
-}
-
-/*!
-  \overload data()
- */
-const void *QSharedMemory::data() const
-{
-    Q_D(const QSharedMemory);
-    return d->memory;
-}
-
-#if QT_CONFIG(systemsemaphore)
-/*!
-  This is a semaphore that locks the shared memory segment for access
-  by this process and returns \c true. If another process has locked the
-  segment, this function blocks until the lock is released. Then it
-  acquires the lock and returns \c true. If this function returns \c false,
-  it means that you have ignored a false return from create() or attach(),
-  that you have set the key with setNativeKey() or that
-  QSystemSemaphore::acquire() failed due to an unknown system error.
-
-  \sa unlock(), data(), QSystemSemaphore::acquire()
- */
-bool QSharedMemory::lock()
-{
-    Q_D(QSharedMemory);
-    if (d->lockedByMe) {
-        qWarning("QSharedMemory::lock: already locked");
-        return true;
-    }
-    if (d->systemSemaphore.acquire()) {
-        d->lockedByMe = true;
-        return true;
-    }
-    const auto function = "QSharedMemory::lock"_L1;
-    d->errorString = QSharedMemory::tr("%1: unable to lock").arg(function);
-    d->error = QSharedMemory::LockError;
-    return false;
-}
-
-/*!
-  Releases the lock on the shared memory segment and returns \c true, if
-  the lock is currently held by this process. If the segment is not
-  locked, or if the lock is held by another process, nothing happens
-  and false is returned.
-
-  \sa lock()
- */
-bool QSharedMemory::unlock()
-{
-    Q_D(QSharedMemory);
-    if (!d->lockedByMe)
-        return false;
-    d->lockedByMe = false;
-    if (d->systemSemaphore.release())
-        return true;
-    const auto function = "QSharedMemory::unlock"_L1;
-    d->errorString = QSharedMemory::tr("%1: unable to unlock").arg(function);
-    d->error = QSharedMemory::LockError;
-    return false;
-}
-#endif // QT_CONFIG(systemsemaphore)
-
-/*!
-  \enum QSharedMemory::SharedMemoryError
-
-  \value NoError No error occurred.
-
-  \value PermissionDenied The operation failed because the caller
-  didn't have the required permissions.
-
-  \value InvalidSize A create operation failed because the requested
-  size was invalid.
-
-  \value KeyError The operation failed because of an invalid key.
-
-  \value AlreadyExists A create() operation failed because a shared
-  memory segment with the specified key already existed.
-
-  \value NotFound An attach() failed because a shared memory segment
-  with the specified key could not be found.
-
-  \value LockError The attempt to lock() the shared memory segment
-  failed because create() or attach() failed and returned false, or
-  because a system error occurred in QSystemSemaphore::acquire().
-
-  \value OutOfResources A create() operation failed because there was
-  not enough memory available to fill the request.
-
-  \value UnknownError Something else happened and it was bad.
-*/
-
-/*!
-  Returns a value indicating whether an error occurred, and, if so,
-  which error it was.
-
-  \sa errorString()
- */
-QSharedMemory::SharedMemoryError QSharedMemory::error() const
-{
-    Q_D(const QSharedMemory);
-    return d->error;
-}
-
-/*!
-  Returns a text description of the last error that occurred. If
-  error() returns an \l {QSharedMemory::SharedMemoryError} {error
-  value}, call this function to get a text string that describes the
-  error.
-
-  \sa error()
- */
-QString QSharedMemory::errorString() const
-{
-    Q_D(const QSharedMemory);
-    return d->errorString;
-}
-
-#endif // QT_CONFIG(sharedmemory)
-
-QT_END_NAMESPACE
-
-#include "moc_qsharedmemory.cpp"
diff --git a/src/corelib/kernel/qsharedmemory_android.cpp b/src/corelib/kernel/qsharedmemory_android.cpp
deleted file mode 100644
index 0cee2ab3..00000000
--- a/src/corelib/kernel/qsharedmemory_android.cpp
+++ /dev/null
@@ -1,65 +0,0 @@
-// Copyright (C) 2012 Collabora Ltd, author <robin.burchell@collabora.co.uk>
-// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
-
-#include "qsharedmemory.h"
-#include "qsharedmemory_p.h"
-#include <qdebug.h>
-
-#if QT_CONFIG(sharedmemory)
-QT_BEGIN_NAMESPACE
-
-void QSharedMemoryPrivate::setErrorString(QLatin1StringView function)
-{
-    Q_UNUSED(function);
-    Q_UNIMPLEMENTED();
-}
-
-key_t QSharedMemoryPrivate::handle()
-{
-    Q_UNIMPLEMENTED();
-    return 0;
-}
-
-#endif // QT_CONFIG(sharedmemory)
-
-#if QT_CONFIG(sharedmemory) || QT_CONFIG(systemsemaphore)
-int QSharedMemoryPrivate::createUnixKeyFile(const QString &fileName)
-{
-    Q_UNUSED(fileName);
-    Q_UNIMPLEMENTED();
-    return 0;
-}
-#endif // QT_CONFIG(sharedmemory) || QT_CONFIG(systemsemaphore)
-
-#if QT_CONFIG(sharedmemory)
-
-bool QSharedMemoryPrivate::cleanHandle()
-{
-    Q_UNIMPLEMENTED();
-    return true;
-}
-
-bool QSharedMemoryPrivate::create(qsizetype size)
-{
-    Q_UNUSED(size);
-    Q_UNIMPLEMENTED();
-    return false;
-}
-
-bool QSharedMemoryPrivate::attach(QSharedMemory::AccessMode mode)
-{
-    Q_UNUSED(mode);
-    Q_UNIMPLEMENTED();
-    return false;
-}
-
-bool QSharedMemoryPrivate::detach()
-{
-    Q_UNIMPLEMENTED();
-    return false;
-}
-
-
-QT_END_NAMESPACE
-
-#endif // QT_CONFIG(sharedmemory)
diff --git a/src/corelib/kernel/qsharedmemory_p.h b/src/corelib/kernel/qsharedmemory_p.h
deleted file mode 100644
index 6d7973fa..00000000
--- a/src/corelib/kernel/qsharedmemory_p.h
+++ /dev/null
@@ -1,140 +0,0 @@
-// Copyright (C) 2016 The Qt Company Ltd.
-// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
-
-#ifndef QSHAREDMEMORY_P_H
-#define QSHAREDMEMORY_P_H
-
-//
-//  W A R N I N G
-//  -------------
-//
-// This file is not part of the Qt API.  It exists purely as an
-// implementation detail.  This header file may change from version to
-// version without notice, or even be removed.
-//
-// We mean it.
-//
-
-#include "qsharedmemory.h"
-
-#include <QtCore/qstring.h>
-
-#if !QT_CONFIG(sharedmemory)
-#    if QT_CONFIG(systemsemaphore)
-
-QT_BEGIN_NAMESPACE
-
-namespace QSharedMemoryPrivate
-{
-    int createUnixKeyFile(const QString &fileName);
-    QString makePlatformSafeKey(const QString &key,
-            const QString &prefix = QStringLiteral("qipc_sharedmemory_"));
-}
-
-QT_END_NAMESPACE
-
-#    endif
-#else
-
-#include "qsystemsemaphore.h"
-#include "private/qobject_p.h"
-
-#if !defined(Q_OS_WIN) && !defined(Q_OS_ANDROID) && !defined(Q_OS_INTEGRITY) && !defined(Q_OS_RTEMS)
-#  include <sys/sem.h>
-#endif
-
-QT_BEGIN_NAMESPACE
-
-#if QT_CONFIG(systemsemaphore)
-/*!
-  Helper class
-  */
-class QSharedMemoryLocker
-{
-
-public:
-    inline QSharedMemoryLocker(QSharedMemory *sharedMemory) : q_sm(sharedMemory)
-    {
-        Q_ASSERT(q_sm);
-    }
-
-    inline ~QSharedMemoryLocker()
-    {
-        if (q_sm)
-            q_sm->unlock();
-    }
-
-    inline bool lock()
-    {
-        if (q_sm && q_sm->lock())
-            return true;
-        q_sm = nullptr;
-        return false;
-    }
-
-private:
-    QSharedMemory *q_sm;
-};
-#endif // QT_CONFIG(systemsemaphore)
-
-class Q_AUTOTEST_EXPORT QSharedMemoryPrivate : public QObjectPrivate
-{
-    Q_DECLARE_PUBLIC(QSharedMemory)
-
-public:
-    void *memory = nullptr;
-    qsizetype size = 0;
-    QString key;
-    QString nativeKey;
-    QSharedMemory::SharedMemoryError error = QSharedMemory::NoError;
-    QString errorString;
-#if QT_CONFIG(systemsemaphore)
-    QSystemSemaphore systemSemaphore{QString()};
-    bool lockedByMe = false;
-#endif
-
-    static int createUnixKeyFile(const QString &fileName);
-    static QString makePlatformSafeKey(const QString &key,
-            const QString &prefix = QStringLiteral("qipc_sharedmemory_"));
-#ifdef Q_OS_WIN
-    Qt::HANDLE handle();
-#elif defined(QT_POSIX_IPC)
-    int handle();
-#else
-    key_t handle();
-#endif
-    bool initKey();
-    bool cleanHandle();
-    bool create(qsizetype size);
-    bool attach(QSharedMemory::AccessMode mode);
-    bool detach();
-
-    void setErrorString(QLatin1StringView function);
-
-#if QT_CONFIG(systemsemaphore)
-    bool tryLocker(QSharedMemoryLocker *locker, const QString &function) {
-        if (!locker->lock()) {
-            errorString = QSharedMemory::tr("%1: unable to lock").arg(function);
-            error = QSharedMemory::LockError;
-            return false;
-        }
-        return true;
-    }
-#endif // QT_CONFIG(systemsemaphore)
-
-private:
-#ifdef Q_OS_WIN
-    Qt::HANDLE hand = nullptr;
-#elif defined(QT_POSIX_IPC)
-    int hand = -1;
-#else
-    key_t unix_key = 0;
-#endif
-};
-
-QT_END_NAMESPACE
-
-#endif // QT_CONFIG(sharedmemory)
-
-#endif // QSHAREDMEMORY_P_H
-
diff --git a/src/corelib/kernel/qsharedmemory_systemv.cpp b/src/corelib/kernel/qsharedmemory_systemv.cpp
deleted file mode 100644
index de6b4074..00000000
--- a/src/corelib/kernel/qsharedmemory_systemv.cpp
+++ /dev/null
@@ -1,226 +0,0 @@
-// Copyright (C) 2016 The Qt Company Ltd.
-// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
-
-#include "qplatformdefs.h"
-
-#include "qsharedmemory.h"
-#include "qsharedmemory_p.h"
-#include "qsystemsemaphore.h"
-#include <qdir.h>
-#include <qdebug.h>
-
-#include <errno.h>
-
-#ifndef QT_POSIX_IPC
-
-#if QT_CONFIG(sharedmemory)
-#include <sys/types.h>
-#include <sys/ipc.h>
-#include <sys/shm.h>
-#include <sys/stat.h>
-#include <fcntl.h>
-#include <unistd.h>
-#endif // QT_CONFIG(sharedmemory)
-
-#include "private/qcore_unix_p.h"
-
-#if QT_CONFIG(sharedmemory)
-QT_BEGIN_NAMESPACE
-
-using namespace Qt::StringLiterals;
-
-/*!
-    \internal
-
-    If not already made create the handle used for accessing the shared memory.
-*/
-key_t QSharedMemoryPrivate::handle()
-{
-    // already made
-    if (unix_key)
-        return unix_key;
-
-    // don't allow making handles on empty keys
-    if (nativeKey.isEmpty()) {
-        errorString = QSharedMemory::tr("%1: key is empty").arg("QSharedMemory::handle:"_L1);
-        error = QSharedMemory::KeyError;
-        return 0;
-    }
-
-    // ftok requires that an actual file exists somewhere
-    if (!QFile::exists(nativeKey)) {
-        errorString = QSharedMemory::tr("%1: UNIX key file doesn't exist").arg("QSharedMemory::handle:"_L1);
-        error = QSharedMemory::NotFound;
-        return 0;
-    }
-
-    unix_key = ftok(QFile::encodeName(nativeKey).constData(), 'Q');
-    if (-1 == unix_key) {
-        errorString = QSharedMemory::tr("%1: ftok failed").arg("QSharedMemory::handle:"_L1);
-        error = QSharedMemory::KeyError;
-        unix_key = 0;
-    }
-    return unix_key;
-}
-
-#endif // QT_CONFIG(sharedmemory)
-
-#if QT_CONFIG(sharedmemory) || QT_CONFIG(systemsemaphore)
-/*!
-    \internal
-    Creates the unix file if needed.
-    returns \c true if the unix file was created.
-
-    -1 error
-     0 already existed
-     1 created
-  */
-int QT_PREPEND_NAMESPACE(QSharedMemoryPrivate)::createUnixKeyFile(const QString &fileName)
-{
-    int fd = qt_safe_open(QFile::encodeName(fileName).constData(),
-            O_EXCL | O_CREAT | O_RDWR, 0640);
-    if (-1 == fd) {
-        if (errno == EEXIST)
-            return 0;
-        return -1;
-    } else {
-        close(fd);
-    }
-    return 1;
-}
-#endif // QT_CONFIG(sharedmemory) || QT_CONFIG(systemsemaphore)
-
-#if QT_CONFIG(sharedmemory)
-
-bool QSharedMemoryPrivate::cleanHandle()
-{
-    unix_key = 0;
-    return true;
-}
-
-bool QSharedMemoryPrivate::create(qsizetype size)
-{
-    // build file if needed
-    bool createdFile = false;
-    int built = createUnixKeyFile(nativeKey);
-    if (built == -1) {
-        errorString = QSharedMemory::tr("%1: unable to make key").arg("QSharedMemory::handle:"_L1);
-        error = QSharedMemory::KeyError;
-        return false;
-    }
-    if (built == 1) {
-        createdFile = true;
-    }
-
-    // get handle
-    if (!handle()) {
-        if (createdFile)
-            QFile::remove(nativeKey);
-        return false;
-    }
-
-    // create
-    if (-1 == shmget(unix_key, size_t(size), 0600 | IPC_CREAT | IPC_EXCL)) {
-        const auto function = "QSharedMemory::create"_L1;
-        switch (errno) {
-        case EINVAL:
-            errorString = QSharedMemory::tr("%1: system-imposed size restrictions").arg("QSharedMemory::handle"_L1);
-            error = QSharedMemory::InvalidSize;
-            break;
-        default:
-            setErrorString(function);
-        }
-        if (createdFile && error != QSharedMemory::AlreadyExists)
-            QFile::remove(nativeKey);
-        return false;
-    }
-
-    return true;
-}
-
-bool QSharedMemoryPrivate::attach(QSharedMemory::AccessMode mode)
-{
-    // grab the shared memory segment id
-    int id = shmget(unix_key, 0, (mode == QSharedMemory::ReadOnly ? 0400 : 0600));
-    if (-1 == id) {
-        setErrorString("QSharedMemory::attach (shmget)"_L1);
-        return false;
-    }
-
-    // grab the memory
-    memory = shmat(id, nullptr, (mode == QSharedMemory::ReadOnly ? SHM_RDONLY : 0));
-    if ((void *)-1 == memory) {
-        memory = nullptr;
-        setErrorString("QSharedMemory::attach (shmat)"_L1);
-        return false;
-    }
-
-    // grab the size
-    shmid_ds shmid_ds;
-    if (!shmctl(id, IPC_STAT, &shmid_ds)) {
-        size = (qsizetype)shmid_ds.shm_segsz;
-    } else {
-        setErrorString("QSharedMemory::attach (shmctl)"_L1);
-        return false;
-    }
-
-    return true;
-}
-
-bool QSharedMemoryPrivate::detach()
-{
-    // detach from the memory segment
-    if (-1 == shmdt(memory)) {
-        const auto function = "QSharedMemory::detach"_L1;
-        switch (errno) {
-        case EINVAL:
-            errorString = QSharedMemory::tr("%1: not attached").arg(function);
-            error = QSharedMemory::NotFound;
-            break;
-        default:
-            setErrorString(function);
-        }
-        return false;
-    }
-    memory = nullptr;
-    size = 0;
-
-    // Get the number of current attachments
-    int id = shmget(unix_key, 0, 0400);
-    cleanHandle();
-
-    struct shmid_ds shmid_ds;
-    if (0 != shmctl(id, IPC_STAT, &shmid_ds)) {
-        switch (errno) {
-        case EINVAL:
-            return true;
-        default:
-            return false;
-        }
-    }
-    // If there are no attachments then remove it.
-    if (shmid_ds.shm_nattch == 0) {
-        // mark for removal
-        if (-1 == shmctl(id, IPC_RMID, &shmid_ds)) {
-            setErrorString("QSharedMemory::remove"_L1);
-            switch (errno) {
-            case EINVAL:
-                return true;
-            default:
-                return false;
-            }
-        }
-
-        // remove file
-        if (!QFile::remove(nativeKey))
-            return false;
-    }
-    return true;
-}
-
-
-QT_END_NAMESPACE
-
-#endif // QT_CONFIG(sharedmemory)
-
-#endif // QT_POSIX_IPC
diff --git a/src/corelib/kernel/qsharedmemory_unix.cpp b/src/corelib/kernel/qsharedmemory_unix.cpp
deleted file mode 100644
index 0696c3fe..00000000
--- a/src/corelib/kernel/qsharedmemory_unix.cpp
+++ /dev/null
@@ -1,64 +0,0 @@
-// Copyright (C) 2016 The Qt Company Ltd.
-// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
-
-#include "qplatformdefs.h"
-
-#include "qsharedmemory.h"
-#include "qsharedmemory_p.h"
-#include "qsystemsemaphore.h"
-#include <qdebug.h>
-
-#include <errno.h>
-
-#if QT_CONFIG(sharedmemory)
-#include <sys/types.h>
-#ifndef QT_POSIX_IPC
-#include <sys/ipc.h>
-#include <sys/shm.h>
-#else
-#include <sys/mman.h>
-#endif
-#include <sys/stat.h>
-#include <fcntl.h>
-#include <unistd.h>
-#endif // QT_CONFIG(sharedmemory)
-
-#include "private/qcore_unix_p.h"
-
-#if QT_CONFIG(sharedmemory)
-QT_BEGIN_NAMESPACE
-
-void QSharedMemoryPrivate::setErrorString(QLatin1StringView function)
-{
-    // EINVAL is handled in functions so they can give better error strings
-    switch (errno) {
-    case EACCES:
-        errorString = QSharedMemory::tr("%1: permission denied").arg(function);
-        error = QSharedMemory::PermissionDenied;
-        break;
-    case EEXIST:
-        errorString = QSharedMemory::tr("%1: already exists").arg(function);
-        error = QSharedMemory::AlreadyExists;
-        break;
-    case ENOENT:
-        errorString = QSharedMemory::tr("%1: doesn't exist").arg(function);
-        error = QSharedMemory::NotFound;
-        break;
-    case EMFILE:
-    case ENOMEM:
-    case ENOSPC:
-        errorString = QSharedMemory::tr("%1: out of resources").arg(function);
-        error = QSharedMemory::OutOfResources;
-        break;
-    default:
-        errorString = QSharedMemory::tr("%1: unknown error %2").arg(function).arg(errno);
-        error = QSharedMemory::UnknownError;
-#if defined QSHAREDMEMORY_DEBUG
-        qDebug() << errorString << "key" << key << "errno" << errno << EINVAL;
-#endif
-    }
-}
-
-QT_END_NAMESPACE
-
-#endif // QT_CONFIG(sharedmemory)
diff --git a/src/corelib/kernel/qsystemsemaphore_android.cpp b/src/corelib/kernel/qsystemsemaphore_android.cpp
deleted file mode 100644
index 5421dcbe..00000000
--- a/src/corelib/kernel/qsystemsemaphore_android.cpp
+++ /dev/null
@@ -1,41 +0,0 @@
-// Copyright (C) 2012 Collabora Ltd, author <robin.burchell@collabora.co.uk>
-// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
-
-#include "qsystemsemaphore.h"
-#include "qsystemsemaphore_p.h"
-
-#include <qdebug.h>
-
-#if QT_CONFIG(systemsemaphore)
-
-QT_BEGIN_NAMESPACE
-
-void QSystemSemaphorePrivate::setErrorString(const QString &function)
-{
-    Q_UNUSED(function);
-    Q_UNIMPLEMENTED();
-}
-
-key_t QSystemSemaphorePrivate::handle(QSystemSemaphore::AccessMode mode)
-{
-    Q_UNUSED(mode);
-    Q_UNIMPLEMENTED();
-    return -1;
-}
-
-void QSystemSemaphorePrivate::cleanHandle()
-{
-    Q_UNIMPLEMENTED();
-}
-
-bool QSystemSemaphorePrivate::modifySemaphore(int count)
-{
-    Q_UNUSED(count);
-    Q_UNIMPLEMENTED();
-    return false;
-}
-
-
-QT_END_NAMESPACE
-
-#endif // QT_CONFIG(systemsemaphore)
diff --git a/src/corelib/kernel/qsystemsemaphore_p.h b/src/corelib/kernel/qsystemsemaphore_p.h
deleted file mode 100644
index 47c9cdfe..00000000
--- a/src/corelib/kernel/qsystemsemaphore_p.h
+++ /dev/null
@@ -1,82 +0,0 @@
-// Copyright (C) 2016 The Qt Company Ltd.
-// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
-
-#ifndef QSYSTEMSEMAPHORE_P_H
-#define QSYSTEMSEMAPHORE_P_H
-
-//
-//  W A R N I N G
-//  -------------
-//
-// This file is not part of the Qt API.  It exists purely as an
-// implementation detail.  This header file may change from version to
-// version without notice, or even be removed.
-//
-// We mean it.
-//
-
-#include "qsystemsemaphore.h"
-
-#if QT_CONFIG(systemsemaphore)
-
-#include "qcoreapplication.h"
-#include "qsharedmemory_p.h"
-#include <sys/types.h>
-#ifdef QT_POSIX_IPC
-#   include <semaphore.h>
-#endif
-
-QT_BEGIN_NAMESPACE
-
-class QSystemSemaphorePrivate
-{
-
-public:
-
-    QString makeKeyFileName()
-    {
-        return QSharedMemoryPrivate::makePlatformSafeKey(key, QLatin1StringView("qipc_systemsem_"));
-    }
-
-    inline void setError(QSystemSemaphore::SystemSemaphoreError e, const QString &message)
-    { error = e; errorString = message; }
-    inline void clearError()
-    { setError(QSystemSemaphore::NoError, QString()); }
-
-#ifdef Q_OS_WIN
-    Qt::HANDLE handle(QSystemSemaphore::AccessMode mode = QSystemSemaphore::Open);
-    void setErrorString(const QString &function);
-#elif defined(QT_POSIX_IPC)
-    bool handle(QSystemSemaphore::AccessMode mode = QSystemSemaphore::Open);
-    void setErrorString(const QString &function);
-#else
-    key_t handle(QSystemSemaphore::AccessMode mode = QSystemSemaphore::Open);
-    void setErrorString(const QString &function);
-#endif
-    void cleanHandle();
-    bool modifySemaphore(int count);
-
-    QString key;
-    QString fileName;
-    int initialValue;
-#ifdef Q_OS_WIN
-    Qt::HANDLE semaphore = nullptr;
-#elif defined(QT_POSIX_IPC)
-    sem_t *semaphore = SEM_FAILED;
-    bool createdSemaphore = false;
-#else
-    key_t unix_key = -1;
-    int semaphore = -1;
-    bool createdFile = false;
-    bool createdSemaphore = false;
-#endif
-    QString errorString;
-    QSystemSemaphore::SystemSemaphoreError error = QSystemSemaphore::NoError;
-};
-
-QT_END_NAMESPACE
-
-#endif // QT_CONFIG(systemsemaphore)
-
-#endif // QSYSTEMSEMAPHORE_P_H
-
diff --git a/src/corelib/kernel/qsystemsemaphore_unix.cpp b/src/corelib/kernel/qsystemsemaphore_unix.cpp
deleted file mode 100644
index 5cb89112..00000000
--- a/src/corelib/kernel/qsystemsemaphore_unix.cpp
+++ /dev/null
@@ -1,63 +0,0 @@
-// Copyright (C) 2016 The Qt Company Ltd.
-// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
-
-#include "qsystemsemaphore.h"
-#include "qsystemsemaphore_p.h"
-
-#include <qdebug.h>
-#include <qcoreapplication.h>
-
-#if QT_CONFIG(systemsemaphore)
-
-#include <sys/types.h>
-#ifndef QT_POSIX_IPC
-#include <sys/ipc.h>
-#include <sys/sem.h>
-#endif
-#include <fcntl.h>
-#include <errno.h>
-
-#include "private/qcore_unix_p.h"
-
-QT_BEGIN_NAMESPACE
-
-void QSystemSemaphorePrivate::setErrorString(const QString &function)
-{
-    // EINVAL is handled in functions so they can give better error strings
-    switch (errno) {
-    case EPERM:
-    case EACCES:
-        errorString = QSystemSemaphore::tr("%1: permission denied").arg(function);
-        error = QSystemSemaphore::PermissionDenied;
-        break;
-    case EEXIST:
-        errorString = QSystemSemaphore::tr("%1: already exists").arg(function);
-        error = QSystemSemaphore::AlreadyExists;
-        break;
-    case ENOENT:
-        errorString = QSystemSemaphore::tr("%1: does not exist").arg(function);
-        error = QSystemSemaphore::NotFound;
-        break;
-    case ERANGE:
-    case ENOSPC:
-        errorString = QSystemSemaphore::tr("%1: out of resources").arg(function);
-        error = QSystemSemaphore::OutOfResources;
-        break;
-#if defined(QT_POSIX_IPC)
-    case ENAMETOOLONG:
-        errorString = QSystemSemaphore::tr("%1: key too long").arg(function);
-        error = QSystemSemaphore::KeyError;
-        break;
-#endif
-    default:
-        errorString = QSystemSemaphore::tr("%1: unknown error %2").arg(function).arg(errno);
-        error = QSystemSemaphore::UnknownError;
-#if defined QSYSTEMSEMAPHORE_DEBUG
-        qDebug() << errorString << "key" << key << "errno" << errno << EINVAL;
-#endif
-    }
-}
-
-QT_END_NAMESPACE
-
-#endif // QT_CONFIG(systemsemaphore)
diff --git a/src/corelib/kernel/qtestsupport_core.cpp b/src/corelib/kernel/qtestsupport_core.cpp
index 3fa7f346..bc461114 100644
--- a/src/corelib/kernel/qtestsupport_core.cpp
+++ b/src/corelib/kernel/qtestsupport_core.cpp
@@ -3,9 +3,7 @@
 
 #include "qtestsupport_core.h"
 
-#ifdef Q_OS_WIN
-#include <qt_windows.h>
-#endif
+#include <thread>
 
 QT_BEGIN_NAMESPACE
 
@@ -17,9 +15,11 @@ QT_BEGIN_NAMESPACE
 
     \a ms must be greater than 0.
 
-    \b {Note:} The qSleep() function calls either \c nanosleep() on
-    unix or \c Sleep() on windows, so the accuracy of time spent in
-    qSleep() depends on the operating system.
+    \note Starting from Qt 6.7, this function is implemented using
+    \c {std::this_thread::sleep_for}, so the accuracy of time spent depends
+    on the Standard Library implementation. Before Qt 6.7 this function called
+    either \c nanosleep() on Unix or \c Sleep() on Windows, so the accuracy of
+    time spent in this function depended on the operating system.
 
     Example:
     \snippet code/src_qtestlib_qtestcase.cpp 23
@@ -29,13 +29,7 @@ QT_BEGIN_NAMESPACE
 Q_CORE_EXPORT void QTest::qSleep(int ms)
 {
     Q_ASSERT(ms > 0);
-
-#if defined(Q_OS_WIN)
-    Sleep(uint(ms));
-#else
-    struct timespec ts = { time_t(ms / 1000), (ms % 1000) * 1000 * 1000 };
-    nanosleep(&ts, nullptr);
-#endif
+    std::this_thread::sleep_for(std::chrono::milliseconds{ms});
 }
 
 /*! \fn template <typename Functor> bool QTest::qWaitFor(Functor predicate, int timeout)
diff --git a/src/corelib/kernel/qtimer.cpp b/src/corelib/kernel/qtimer.cpp
index e151b041..282de8f8 100644
--- a/src/corelib/kernel/qtimer.cpp
+++ b/src/corelib/kernel/qtimer.cpp
@@ -8,6 +8,7 @@
 #include "qabstracteventdispatcher.h"
 #include "qcoreapplication.h"
 #include "qcoreapplication_p.h"
+#include "qdeadlinetimer.h"
 #include "qmetaobject_p.h"
 #include "qobject_p.h"
 #include "qproperty_p.h"
@@ -188,7 +189,7 @@ void QTimer::start()
     Q_D(QTimer);
     if (d->id != QTimerPrivate::INV_TIMER) // stop running timer
         stop();
-    d->id = QObject::startTimer(d->inter, d->type);
+    d->id = QObject::startTimer(std::chrono::milliseconds{d->inter}, d->type);
     d->isActiveData.notify();
 }
 
@@ -199,7 +200,13 @@ void QTimer::start()
     If the timer is already running, it will be
     \l{QTimer::stop()}{stopped} and restarted.
 
-    If \l singleShot is true, the timer will be activated only once.
+    If \l singleShot is true, the timer will be activated only once. This is
+    equivalent to:
+
+    \code
+        timer.setInterval(msec);
+        timer.start();
+    \endcode
 
     \note   Keeping the event loop busy with a zero-timer is bound to
             cause trouble and highly erratic behavior of the UI.
@@ -249,12 +256,14 @@ void QTimer::timerEvent(QTimerEvent *e)
 class QSingleShotTimer : public QObject
 {
     Q_OBJECT
-    int timerId;
+    int timerId = -1;
 public:
     ~QSingleShotTimer();
     QSingleShotTimer(int msec, Qt::TimerType timerType, const QObject *r, const char * m);
     QSingleShotTimer(int msec, Qt::TimerType timerType, const QObject *r, QtPrivate::QSlotObjectBase *slotObj);
 
+    void startTimerForReceiver(int msec, Qt::TimerType timerType, const QObject *receiver);
+
 Q_SIGNALS:
     void timeout();
 protected:
@@ -264,27 +273,20 @@ protected:
 QSingleShotTimer::QSingleShotTimer(int msec, Qt::TimerType timerType, const QObject *r, const char *member)
     : QObject(QAbstractEventDispatcher::instance())
 {
-    timerId = startTimer(msec, timerType);
     connect(this, SIGNAL(timeout()), r, member);
+
+    startTimerForReceiver(msec, timerType, r);
 }
 
 QSingleShotTimer::QSingleShotTimer(int msec, Qt::TimerType timerType, const QObject *r, QtPrivate::QSlotObjectBase *slotObj)
     : QObject(QAbstractEventDispatcher::instance())
 {
-    timerId = startTimer(msec, timerType);
-
     int signal_index = QMetaObjectPrivate::signalOffset(&staticMetaObject);
     Q_ASSERT(QMetaObjectPrivate::signal(&staticMetaObject, signal_index).name() == "timeout");
     QObjectPrivate::connectImpl(this, signal_index, r ? r : this, nullptr, slotObj,
                                 Qt::AutoConnection, nullptr, &staticMetaObject);
 
-    // ### Why is this here? Why doesn't the case above need it?
-    if (r && thread() != r->thread()) {
-        // Avoid leaking the QSingleShotTimer instance in case the application exits before the timer fires
-        connect(QCoreApplication::instance(), &QCoreApplication::aboutToQuit, this, &QObject::deleteLater);
-        setParent(nullptr);
-        moveToThread(r->thread());
-    }
+    startTimerForReceiver(msec, timerType, r);
 }
 
 QSingleShotTimer::~QSingleShotTimer()
@@ -293,6 +295,32 @@ QSingleShotTimer::~QSingleShotTimer()
         killTimer(timerId);
 }
 
+/*
+    Move the timer, and the dispatching and handling of the timer event, into
+    the same thread as where it will be handled, so that it fires reliably even
+    if the thread that set up the timer is busy.
+*/
+void QSingleShotTimer::startTimerForReceiver(int msec, Qt::TimerType timerType, const QObject *receiver)
+{
+    if (receiver && receiver->thread() != thread()) {
+        // Avoid leaking the QSingleShotTimer instance in case the application exits before the timer fires
+        connect(QCoreApplication::instance(), &QCoreApplication::aboutToQuit, this, &QObject::deleteLater);
+        setParent(nullptr);
+        moveToThread(receiver->thread());
+
+        QDeadlineTimer deadline(std::chrono::milliseconds{msec}, timerType);
+        QMetaObject::invokeMethod(this, [this, deadline, timerType]{
+            if (deadline.hasExpired())
+                emit timeout();
+            else
+                timerId = startTimer(std::chrono::milliseconds{deadline.remainingTime()}, timerType);
+        }, Qt::QueuedConnection);
+    } else {
+        timerId = startTimer(std::chrono::milliseconds{msec}, timerType);
+    }
+}
+
+
 void QSingleShotTimer::timerEvent(QTimerEvent *)
 {
     // need to kill the timer _before_ we emit timeout() in case the
@@ -420,125 +448,28 @@ void QTimer::singleShot(int msec, Qt::TimerType timerType, const QObject *receiv
     }
 }
 
-/*! \fn template<typename PointerToMemberFunction> void QTimer::singleShot(int msec, const QObject *receiver, PointerToMemberFunction method)
-
+/*! \fn template<typename Duration, typename Functor> void QTimer::singleShot(Duration msec, const QObject *context, Functor &&functor)
+    \fn template<typename Duration, typename Functor> void QTimer::singleShot(Duration msec, Qt::TimerType timerType, const QObject *context, Functor &&functor)
+    \fn template<typename Duration, typename Functor> void QTimer::singleShot(Duration msec, Functor &&functor)
+    \fn template<typename Duration, typename Functor> void QTimer::singleShot(Duration msec, Qt::TimerType timerType, Functor &&functor)
     \since 5.4
 
-    \overload
     \reentrant
-    This static function calls a member function of a QObject after a given time interval.
+    This static function calls \a functor after \a msec milliseconds.
 
     It is very convenient to use this function because you do not need
     to bother with a \l{QObject::timerEvent()}{timerEvent} or
     create a local QTimer object.
 
-    The \a receiver is the receiving object and the \a method is the member function. The
-    time interval is \a msec milliseconds.
+    If \a context is specified, then the \a functor will be called only if the
+    \a context object has not been destroyed before the interval occurs. The functor
+    will then be run the thread of \a context. The context's thread must have a
+    running Qt event loop.
 
-    If \a receiver is destroyed before the interval occurs, the method will not be called.
-    The function will be run in the thread of \a receiver. The receiver's thread must have
-    a running Qt event loop.
+    If \a functor is a member
+    function of \a context, then the function will be called on the object.
 
-    \sa start()
-*/
-
-/*! \fn template<typename PointerToMemberFunction> void QTimer::singleShot(int msec, Qt::TimerType timerType, const QObject *receiver, PointerToMemberFunction method)
-
-    \since 5.4
-
-    \overload
-    \reentrant
-    This static function calls a member function of a QObject after a given time interval.
-
-    It is very convenient to use this function because you do not need
-    to bother with a \l{QObject::timerEvent()}{timerEvent} or
-    create a local QTimer object.
-
-    The \a receiver is the receiving object and the \a method is the member function. The
-    time interval is \a msec milliseconds. The \a timerType affects the
-    accuracy of the timer.
-
-    If \a receiver is destroyed before the interval occurs, the method will not be called.
-    The function will be run in the thread of \a receiver. The receiver's thread must have
-    a running Qt event loop.
-
-    \sa start()
-*/
-
-/*! \fn template<typename Functor> void QTimer::singleShot(int msec, Functor functor)
-
-    \since 5.4
-
-    \overload
-    \reentrant
-    This static function calls \a functor after a given time interval.
-
-    It is very convenient to use this function because you do not need
-    to bother with a \l{QObject::timerEvent()}{timerEvent} or
-    create a local QTimer object.
-
-    The time interval is \a msec milliseconds.
-
-    \sa start()
-*/
-
-/*! \fn template<typename Functor> void QTimer::singleShot(int msec, Qt::TimerType timerType, Functor functor)
-
-    \since 5.4
-
-    \overload
-    \reentrant
-    This static function calls \a functor after a given time interval.
-
-    It is very convenient to use this function because you do not need
-    to bother with a \l{QObject::timerEvent()}{timerEvent} or
-    create a local QTimer object.
-
-    The time interval is \a msec milliseconds. The \a timerType affects the
-    accuracy of the timer.
-
-    \sa start()
-*/
-
-/*! \fn template<typename Functor> void QTimer::singleShot(int msec, const QObject *context, Functor functor)
-
-    \since 5.4
-
-    \overload
-    \reentrant
-    This static function calls \a functor after a given time interval.
-
-    It is very convenient to use this function because you do not need
-    to bother with a \l{QObject::timerEvent()}{timerEvent} or
-    create a local QTimer object.
-
-    The time interval is \a msec milliseconds.
-
-    If \a context is destroyed before the interval occurs, the method will not be called.
-    The function will be run in the thread of \a context. The context's thread must have
-    a running Qt event loop.
-
-    \sa start()
-*/
-
-/*! \fn template<typename Functor> void QTimer::singleShot(int msec, Qt::TimerType timerType, const QObject *context, Functor functor)
-
-    \since 5.4
-
-    \overload
-    \reentrant
-    This static function calls \a functor after a given time interval.
-
-    It is very convenient to use this function because you do not need
-    to bother with a \l{QObject::timerEvent()}{timerEvent} or
-    create a local QTimer object.
-
-    The time interval is \a msec milliseconds. The \a timerType affects the
-    accuracy of the timer.
-
-    If \a context is destroyed before the interval occurs, the method will not be called.
-    The function will be run in the thread of \a context. The context's thread must have
-    a running Qt event loop.
+    The \a msec parameter can be an \c int or a \c std::chrono::milliseconds value.
 
     \sa start()
 */
@@ -583,7 +514,6 @@ void QTimer::singleShot(int msec, Qt::TimerType timerType, const QObject *receiv
 /*!
     \fn template <typename Functor> QMetaObject::Connection QTimer::callOnTimeout(Functor &&slot)
     \since 5.12
-    \overload
 
     Creates a connection from the timer's timeout() signal to \a slot.
     Returns a handle to the connection.
@@ -597,7 +527,7 @@ void QTimer::singleShot(int msec, Qt::TimerType timerType, const QObject *receiv
 */
 
 /*!
-    \fn template <typename Functor> QMetaObject::Connection QTimer::callOnTimeout(const QObject *context, Functor slot, Qt::ConnectionType connectionType = Qt::AutoConnection)
+    \fn template <typename Functor> QMetaObject::Connection QTimer::callOnTimeout(const QObject *context, Functor &&slot, Qt::ConnectionType connectionType = Qt::AutoConnection)
     \since 5.12
     \overload callOnTimeout()
 
@@ -610,20 +540,6 @@ void QTimer::singleShot(int msec, Qt::TimerType timerType, const QObject *receiv
     \sa QObject::connect(), timeout()
 */
 
-/*!
-    \fn template <typename MemberFunction> QMetaObject::Connection QTimer::callOnTimeout(const QObject *receiver, MemberFunction *slot, Qt::ConnectionType connectionType = Qt::AutoConnection)
-    \since 5.12
-    \overload callOnTimeout()
-
-    Creates a connection from the timeout() signal to the \a slot in the \a receiver object. Returns
-    a handle to the connection.
-
-    This method is provided for convenience. It's equivalent to calling
-    \c {QObject::connect(timer, &QTimer::timeout, receiver, slot, connectionType)}.
-
-    \sa QObject::connect(), timeout()
-*/
-
 /*!
     \fn void QTimer::start(std::chrono::milliseconds msec)
     \since 5.8
@@ -634,7 +550,13 @@ void QTimer::singleShot(int msec, Qt::TimerType timerType, const QObject *receiv
     If the timer is already running, it will be
     \l{QTimer::stop()}{stopped} and restarted.
 
-    If \l singleShot is true, the timer will be activated only once.
+    If \l singleShot is true, the timer will be activated only once. This is
+    equivalent to:
+
+    \code
+        timer.setInterval(msec);
+        timer.start();
+    \endcode
 */
 
 /*!
@@ -705,7 +627,7 @@ void QTimer::setInterval(int msec)
     d->inter.setValueBypassingBindings(msec);
     if (d->id != QTimerPrivate::INV_TIMER) { // create new timer
         QObject::killTimer(d->id);                        // restart timer
-        d->id = QObject::startTimer(msec, d->type);
+        d->id = QObject::startTimer(std::chrono::milliseconds{msec}, d->type);
         // No need to call markDirty() for d->isActiveData here,
         // as timer state actually does not change
     }
diff --git a/src/corelib/kernel/qtimer.h b/src/corelib/kernel/qtimer.h
index cddcdce3..b01cfdec 100644
--- a/src/corelib/kernel/qtimer.h
+++ b/src/corelib/kernel/qtimer.h
@@ -49,82 +49,50 @@ public:
     static void singleShot(int msec, const QObject *receiver, const char *member);
     static void singleShot(int msec, Qt::TimerType timerType, const QObject *receiver, const char *member);
 
+    // singleShot with context
+    template <typename Duration, typename Functor>
+    static inline void singleShot(Duration interval,
 #ifdef Q_QDOC
-    template<typename PointerToMemberFunction>
-    static void singleShot(int msec, const QObject *receiver, PointerToMemberFunction method);
-    template<typename PointerToMemberFunction>
-    static void singleShot(int msec, Qt::TimerType timerType, const QObject *receiver, PointerToMemberFunction method);
-    template<typename Functor>
-    static void singleShot(int msec, Functor functor);
-    template<typename Functor>
-    static void singleShot(int msec, Qt::TimerType timerType, Functor functor);
-    template<typename Functor, int>
-    static void singleShot(int msec, const QObject *context, Functor functor);
-    template<typename Functor, int>
-    static void singleShot(int msec, Qt::TimerType timerType, const QObject *context, Functor functor);
-    template <typename Functor>
-    QMetaObject::Connection callOnTimeout(Functor slot);
-    template <typename Functor>
-    QMetaObject::Connection callOnTimeout(const QObject *context, Functor slot, Qt::ConnectionType connectionType = Qt::AutoConnection);
-    template <typename MemberFunction>
-    QMetaObject::Connection callOnTimeout(const QObject *receiver, MemberFunction *slot, Qt::ConnectionType connectionType = Qt::AutoConnection);
+                                  const QObject *receiver,
 #else
-    // singleShot to a QObject slot
-    template <typename Duration, typename Func1>
-    static inline void singleShot(Duration interval, const typename QtPrivate::FunctionPointer<Func1>::Object *receiver, Func1 slot)
+                                  const typename QtPrivate::ContextTypeForFunctor<Functor>::ContextType *receiver,
+#endif
+
+                                  Functor &&slot)
     {
-        singleShot(interval, defaultTypeFor(interval), receiver, slot);
+        singleShot(interval, defaultTypeFor(interval), receiver, std::forward<Functor>(slot));
     }
-    template <typename Duration, typename Func1>
-    static inline void singleShot(Duration interval, Qt::TimerType timerType, const typename QtPrivate::FunctionPointer<Func1>::Object *receiver,
-                                  Func1 slot)
+    template <typename Duration, typename Functor>
+    static inline void singleShot(Duration interval, Qt::TimerType timerType,
+#ifdef Q_QDOC
+                                  const QObject *receiver,
+#else
+                                  const typename QtPrivate::ContextTypeForFunctor<Functor>::ContextType *receiver,
+#endif
+                                  Functor &&slot)
     {
-        typedef QtPrivate::FunctionPointer<Func1> SlotType;
-
-        //compilation error if the slot has arguments.
-        static_assert(int(SlotType::ArgumentCount) == 0,
-                          "The slot must not have any arguments.");
-
+        using Prototype = void(*)();
         singleShotImpl(interval, timerType, receiver,
-                       new QtPrivate::QSlotObject<Func1, typename SlotType::Arguments, void>(slot));
+                       QtPrivate::makeCallableObject<Prototype>(std::forward<Functor>(slot)));
     }
-    // singleShot to a functor or function pointer (without context)
-    template <typename Duration, typename Func1>
-    static inline typename std::enable_if<!QtPrivate::FunctionPointer<Func1>::IsPointerToMemberFunction &&
-                                          !std::is_same<const char*, Func1>::value, void>::type
-            singleShot(Duration interval, Func1 slot)
+    // singleShot without context
+    template <typename Duration, typename Functor>
+    static inline void singleShot(Duration interval, Functor &&slot)
     {
-        singleShot(interval, defaultTypeFor(interval), nullptr, std::move(slot));
+        singleShot(interval, defaultTypeFor(interval), nullptr, std::forward<Functor>(slot));
     }
-    template <typename Duration, typename Func1>
-    static inline typename std::enable_if<!QtPrivate::FunctionPointer<Func1>::IsPointerToMemberFunction &&
-                                          !std::is_same<const char*, Func1>::value, void>::type
-            singleShot(Duration interval, Qt::TimerType timerType, Func1 slot)
+    template <typename Duration, typename Functor>
+    static inline void singleShot(Duration interval, Qt::TimerType timerType, Functor &&slot)
     {
-        singleShot(interval, timerType, nullptr, std::move(slot));
-    }
-    // singleShot to a functor or function pointer (with context)
-    template <typename Duration, typename Func1>
-    static inline typename std::enable_if<!QtPrivate::FunctionPointer<Func1>::IsPointerToMemberFunction &&
-                                          !std::is_same<const char*, Func1>::value, void>::type
-            singleShot(Duration interval, const QObject *context, Func1 slot)
-    {
-        singleShot(interval, defaultTypeFor(interval), context, std::move(slot));
-    }
-    template <typename Duration, typename Func1>
-    static inline typename std::enable_if<!QtPrivate::FunctionPointer<Func1>::IsPointerToMemberFunction &&
-                                          !std::is_same<const char*, Func1>::value, void>::type
-            singleShot(Duration interval, Qt::TimerType timerType, const QObject *context, Func1 slot)
-    {
-        //compilation error if the slot has arguments.
-        typedef QtPrivate::FunctionPointer<Func1> SlotType;
-        static_assert(int(SlotType::ArgumentCount) <= 0,  "The slot must not have any arguments.");
-
-        singleShotImpl(interval, timerType, context,
-                       new QtPrivate::QFunctorSlotObject<Func1, 0,
-                            typename QtPrivate::List_Left<void, 0>::Value, void>(std::move(slot)));
+        singleShot(interval, timerType, nullptr, std::forward<Functor>(slot));
     }
 
+#ifdef Q_QDOC
+    template <typename Functor>
+    QMetaObject::Connection callOnTimeout(Functor &&slot);
+    template <typename Functor>
+    QMetaObject::Connection callOnTimeout(const QObject *context, Functor &&slot, Qt::ConnectionType connectionType = Qt::AutoConnection);
+#else
     template <typename ... Args>
     QMetaObject::Connection callOnTimeout(Args && ...args)
     {
diff --git a/src/corelib/kernel/qtimerinfo_unix.cpp b/src/corelib/kernel/qtimerinfo_unix.cpp
index 7ec23de4..01238d8d 100644
--- a/src/corelib/kernel/qtimerinfo_unix.cpp
+++ b/src/corelib/kernel/qtimerinfo_unix.cpp
@@ -17,6 +17,8 @@
 
 #include <sys/times.h>
 
+using namespace std::chrono;
+
 QT_BEGIN_NAMESPACE
 
 Q_CORE_EXPORT bool qt_disable_lowpriority_timers=false;
@@ -28,25 +30,6 @@ Q_CORE_EXPORT bool qt_disable_lowpriority_timers=false;
 
 QTimerInfoList::QTimerInfoList()
 {
-#if (_POSIX_MONOTONIC_CLOCK-0 <= 0) && !defined(Q_OS_MAC)
-    if (!QElapsedTimer::isMonotonic()) {
-        // not using monotonic timers, initialize the timeChanged() machinery
-        previousTime = qt_gettime();
-
-        tms unused;
-        previousTicks = times(&unused);
-
-        ticksPerSecond = sysconf(_SC_CLK_TCK);
-        msPerTick = 1000/ticksPerSecond;
-    } else {
-        // detected monotonic timers
-        previousTime.tv_sec = previousTime.tv_nsec = 0;
-        previousTicks = 0;
-        ticksPerSecond = 0;
-        msPerTick = 0;
-    }
-#endif
-
     firstTimerInfo = nullptr;
 }
 
@@ -55,85 +38,6 @@ timespec QTimerInfoList::updateCurrentTime()
     return (currentTime = qt_gettime());
 }
 
-#if ((_POSIX_MONOTONIC_CLOCK-0 <= 0) && !defined(Q_OS_MAC) && !defined(Q_OS_INTEGRITY)) || defined(QT_BOOTSTRAPPED)
-
-timespec qAbsTimespec(const timespec &t)
-{
-    timespec tmp = t;
-    if (tmp.tv_sec < 0) {
-        tmp.tv_sec = -tmp.tv_sec - 1;
-        tmp.tv_nsec -= 1000000000;
-    }
-    if (tmp.tv_sec == 0 && tmp.tv_nsec < 0) {
-        tmp.tv_nsec = -tmp.tv_nsec;
-    }
-    return normalizedTimespec(tmp);
-}
-
-/*
-  Returns \c true if the real time clock has changed by more than 10%
-  relative to the processor time since the last time this function was
-  called. This presumably means that the system time has been changed.
-
-  If /a delta is nonzero, delta is set to our best guess at how much the system clock was changed.
-*/
-bool QTimerInfoList::timeChanged(timespec *delta)
-{
-    struct tms unused;
-    clock_t currentTicks = times(&unused);
-
-    clock_t elapsedTicks = currentTicks - previousTicks;
-    timespec elapsedTime = currentTime - previousTime;
-
-    timespec elapsedTimeTicks;
-    elapsedTimeTicks.tv_sec = elapsedTicks / ticksPerSecond;
-    elapsedTimeTicks.tv_nsec = (((elapsedTicks * 1000) / ticksPerSecond) % 1000) * 1000 * 1000;
-
-    timespec dummy;
-    if (!delta)
-        delta = &dummy;
-    *delta = elapsedTime - elapsedTimeTicks;
-
-    previousTicks = currentTicks;
-    previousTime = currentTime;
-
-    // If tick drift is more than 10% off compared to realtime, we assume that the clock has
-    // been set. Of course, we have to allow for the tick granularity as well.
-    timespec tickGranularity;
-    tickGranularity.tv_sec = 0;
-    tickGranularity.tv_nsec = msPerTick * 1000 * 1000;
-    return elapsedTimeTicks < ((qAbsTimespec(*delta) - tickGranularity) * 10);
-}
-
-/*
-  repair broken timer
-*/
-void QTimerInfoList::timerRepair(const timespec &diff)
-{
-    // repair all timers
-    for (int i = 0; i < size(); ++i) {
-        QTimerInfo *t = at(i);
-        t->timeout = t->timeout + diff;
-    }
-}
-
-void QTimerInfoList::repairTimersIfNeeded()
-{
-    if (QElapsedTimer::isMonotonic())
-        return;
-    timespec delta;
-    if (timeChanged(&delta))
-        timerRepair(delta);
-}
-
-#else // !(_POSIX_MONOTONIC_CLOCK-0 <= 0) && !defined(QT_BOOTSTRAPPED)
-
-void QTimerInfoList::repairTimersIfNeeded()
-{
-}
-
-#endif
-
 /*
   insert timer info into list
 */
@@ -148,19 +52,6 @@ void QTimerInfoList::timerInsert(QTimerInfo *ti)
     insert(index+1, ti);
 }
 
-inline timespec &operator+=(timespec &t1, int ms)
-{
-    t1.tv_sec += ms / 1000;
-    t1.tv_nsec += ms % 1000 * 1000 * 1000;
-    return normalizedTimespec(t1);
-}
-
-inline timespec operator+(const timespec &t1, int ms)
-{
-    timespec t2 = t1;
-    return t2 += ms;
-}
-
 static constexpr timespec roundToMillisecond(timespec val)
 {
     // always round up
@@ -178,6 +69,25 @@ static_assert(roundToMillisecond({0, 1'000'000}) == timespec{0, 1'000'000});
 static_assert(roundToMillisecond({0, 999'999'999}) == timespec{1, 0});
 static_assert(roundToMillisecond({1, 0}) == timespec{1, 0});
 
+static constexpr seconds roundToSecs(milliseconds msecs)
+{
+    // The very coarse timer is based on full second precision, so we want to
+    // round the interval to the closest second, rounding 500ms up to 1s.
+    //
+    // std::chrono::round() wouldn't work with all multiples of 500 because for the
+    // middle point it would round to even:
+    // value  round()  wanted
+    // 500      0        1
+    // 1500     2        2
+    // 2500     2        3
+
+    auto secs = duration_cast<seconds>(msecs);
+    const milliseconds frac = msecs - secs;
+    if (frac >= 500ms)
+        ++secs;
+    return secs;
+}
+
 #ifdef QTIMERINFO_DEBUG
 QDebug operator<<(QDebug s, timeval tv)
 {
@@ -194,7 +104,7 @@ QDebug operator<<(QDebug s, Qt::TimerType t)
 }
 #endif
 
-static void calculateCoarseTimerTimeout(QTimerInfo *t, timespec currentTime)
+static void calculateCoarseTimerTimeout(QTimerInfo *t, timespec now)
 {
     // The coarse timer works like this:
     //  - interval under 40 ms: round to even
@@ -212,107 +122,114 @@ static void calculateCoarseTimerTimeout(QTimerInfo *t, timespec currentTime)
     //
     // The objective is to make most timers wake up at the same time, thereby reducing CPU wakeups.
 
-    uint interval = uint(t->interval);
-    Q_ASSERT(interval >= 20);
+    Q_ASSERT(t->interval >= 20ms);
+
+    auto recalculate = [&](const milliseconds fracMsec) {
+        if (fracMsec == 1000ms) {
+            ++t->timeout.tv_sec;
+            t->timeout.tv_nsec = 0;
+        } else {
+            t->timeout.tv_nsec = nanoseconds{fracMsec}.count();
+        }
+
+        if (t->timeout < now)
+            t->timeout += t->interval;
+    };
+
     // Calculate how much we can round and still keep within 5% error
-    uint absMaxRounding = interval / 20;
+    const milliseconds absMaxRounding = t->interval / 20;
 
-    using namespace std::chrono;
-    uint msec = duration_cast<milliseconds>(nanoseconds{t->timeout.tv_nsec}).count();
+    auto fracMsec = duration_cast<milliseconds>(nanoseconds{t->timeout.tv_nsec});
 
-    if (interval < 100 && interval != 25 && interval != 50 && interval != 75) {
+    if (t->interval < 100ms && t->interval != 25ms && t->interval != 50ms && t->interval != 75ms) {
+        auto fracCount = fracMsec.count();
         // special mode for timers of less than 100 ms
-        if (interval < 50) {
+        if (t->interval < 50ms) {
             // round to even
             // round towards multiples of 50 ms
-            bool roundUp = (msec % 50) >= 25;
-            msec >>= 1;
-            msec |= uint(roundUp);
-            msec <<= 1;
+            bool roundUp = (fracCount % 50) >= 25;
+            fracCount >>= 1;
+            fracCount |= roundUp;
+            fracCount <<= 1;
         } else {
             // round to multiple of 4
             // round towards multiples of 100 ms
-            bool roundUp = (msec % 100) >= 50;
-            msec >>= 2;
-            msec |= uint(roundUp);
-            msec <<= 2;
+            bool roundUp = (fracCount % 100) >= 50;
+            fracCount >>= 2;
+            fracCount |= roundUp;
+            fracCount <<= 2;
         }
-    } else {
-        uint min = qMax<int>(0, msec - absMaxRounding);
-        uint max = qMin(1000u, msec + absMaxRounding);
+        fracMsec = milliseconds{fracCount};
+        recalculate(fracMsec);
+        return;
+    }
 
-        // find the boundary that we want, according to the rules above
-        // extra rules:
-        // 1) whatever the interval, we'll take any round-to-the-second timeout
-        if (min == 0) {
-            msec = 0;
-            goto recalculate;
-        } else if (max == 1000) {
-            msec = 1000;
-            goto recalculate;
-        }
+    milliseconds min = std::max(0ms, fracMsec - absMaxRounding);
+    milliseconds max = std::min(1000ms, fracMsec + absMaxRounding);
 
-        uint wantedBoundaryMultiple;
+    // find the boundary that we want, according to the rules above
+    // extra rules:
+    // 1) whatever the interval, we'll take any round-to-the-second timeout
+    if (min == 0ms) {
+        fracMsec = 0ms;
+        recalculate(fracMsec);
+        return;
+    } else if (max == 1000ms) {
+        fracMsec = 1000ms;
+        recalculate(fracMsec);
+        return;
+    }
 
-        // 2) if the interval is a multiple of 500 ms and > 5000 ms, we'll always round
-        //    towards a round-to-the-second
-        // 3) if the interval is a multiple of 500 ms, we'll round towards the nearest
-        //    multiple of 500 ms
-        if ((interval % 500) == 0) {
-            if (interval >= 5000) {
-                msec = msec >= 500 ? max : min;
-                goto recalculate;
-            } else {
-                wantedBoundaryMultiple = 500;
-            }
-        } else if ((interval % 50) == 0) {
-            // 4) same for multiples of 250, 200, 100, 50
-            uint mult50 = interval / 50;
-            if ((mult50 % 4) == 0) {
-                // multiple of 200
-                wantedBoundaryMultiple = 200;
-            } else if ((mult50 % 2) == 0) {
-                // multiple of 100
-                wantedBoundaryMultiple = 100;
-            } else if ((mult50 % 5) == 0) {
-                // multiple of 250
-                wantedBoundaryMultiple = 250;
-            } else {
-                // multiple of 50
-                wantedBoundaryMultiple = 50;
-            }
+    milliseconds wantedBoundaryMultiple{25};
+
+    // 2) if the interval is a multiple of 500 ms and > 5000 ms, we'll always round
+    //    towards a round-to-the-second
+    // 3) if the interval is a multiple of 500 ms, we'll round towards the nearest
+    //    multiple of 500 ms
+    if ((t->interval % 500) == 0ms) {
+        if (t->interval >= 5s) {
+            fracMsec = fracMsec >= 500ms ? max : min;
+            recalculate(fracMsec);
+            return;
         } else {
-            wantedBoundaryMultiple = 25;
+            wantedBoundaryMultiple = 500ms;
+        }
+    } else if ((t->interval % 50) == 0ms) {
+        // 4) same for multiples of 250, 200, 100, 50
+        milliseconds mult50 = t->interval / 50;
+        if ((mult50 % 4) == 0ms) {
+            // multiple of 200
+            wantedBoundaryMultiple = 200ms;
+        } else if ((mult50 % 2) == 0ms) {
+            // multiple of 100
+            wantedBoundaryMultiple = 100ms;
+        } else if ((mult50 % 5) == 0ms) {
+            // multiple of 250
+            wantedBoundaryMultiple = 250ms;
+        } else {
+            // multiple of 50
+            wantedBoundaryMultiple = 50ms;
         }
-
-        uint base = msec / wantedBoundaryMultiple * wantedBoundaryMultiple;
-        uint middlepoint = base + wantedBoundaryMultiple / 2;
-        if (msec < middlepoint)
-            msec = qMax(base, min);
-        else
-            msec = qMin(base + wantedBoundaryMultiple, max);
     }
 
-recalculate:
-    if (msec == 1000u) {
-        ++t->timeout.tv_sec;
-        t->timeout.tv_nsec = 0;
-    } else {
-        t->timeout.tv_nsec = nanoseconds{milliseconds{msec}}.count();
-    }
+    milliseconds base = (fracMsec / wantedBoundaryMultiple) * wantedBoundaryMultiple;
+    milliseconds middlepoint = base + wantedBoundaryMultiple / 2;
+    if (fracMsec < middlepoint)
+        fracMsec = qMax(base, min);
+    else
+        fracMsec = qMin(base + wantedBoundaryMultiple, max);
 
-    if (t->timeout < currentTime)
-        t->timeout += interval;
+    recalculate(fracMsec);
 }
 
-static void calculateNextTimeout(QTimerInfo *t, timespec currentTime)
+static void calculateNextTimeout(QTimerInfo *t, timespec now)
 {
     switch (t->timerType) {
     case Qt::PreciseTimer:
     case Qt::CoarseTimer:
         t->timeout += t->interval;
-        if (t->timeout < currentTime) {
-            t->timeout = currentTime;
+        if (t->timeout < now) {
+            t->timeout = now;
             t->timeout += t->interval;
         }
 #ifdef QTIMERINFO_DEBUG
@@ -323,14 +240,15 @@ static void calculateNextTimeout(QTimerInfo *t, timespec currentTime)
         }
 #endif
         if (t->timerType == Qt::CoarseTimer)
-            calculateCoarseTimerTimeout(t, currentTime);
+            calculateCoarseTimerTimeout(t, now);
         return;
 
     case Qt::VeryCoarseTimer:
-        // we don't need to take care of the microsecond component of t->interval
-        t->timeout.tv_sec += t->interval;
-        if (t->timeout.tv_sec <= currentTime.tv_sec)
-            t->timeout.tv_sec = currentTime.tv_sec + t->interval;
+        // t->interval already rounded to full seconds in registerTimer()
+        const auto secs = duration_cast<seconds>(t->interval).count();
+        t->timeout.tv_sec += secs;
+        if (t->timeout.tv_sec <= now.tv_sec)
+            t->timeout.tv_sec = now.tv_sec + secs;
 #ifdef QTIMERINFO_DEBUG
         t->expected.tv_sec += t->interval;
         if (t->expected.tv_sec <= currentTime.tv_sec)
@@ -353,29 +271,19 @@ static void calculateNextTimeout(QTimerInfo *t, timespec currentTime)
 */
 bool QTimerInfoList::timerWait(timespec &tm)
 {
-    timespec currentTime = updateCurrentTime();
-    repairTimersIfNeeded();
+    timespec now = updateCurrentTime();
 
+    auto isWaiting = [](QTimerInfo *tinfo) { return !tinfo->activateRef; };
     // Find first waiting timer not already active
-    QTimerInfo *t = nullptr;
-    for (QTimerInfoList::const_iterator it = constBegin(); it != constEnd(); ++it) {
-        if (!(*it)->activateRef) {
-            t = *it;
-            break;
-        }
-    }
+    auto it = std::find_if(cbegin(), cend(), isWaiting);
+    if (it == cend())
+        return false;
 
-    if (!t)
-      return false;
-
-    if (currentTime < t->timeout) {
-        // time to wait
-        tm = roundToMillisecond(t->timeout - currentTime);
-    } else {
-        // no time to wait
-        tm.tv_sec  = 0;
-        tm.tv_nsec = 0;
-    }
+    QTimerInfo *t = *it;
+    if (now < t->timeout) // Time to wait
+        tm = roundToMillisecond(t->timeout - now);
+    else // No time to wait
+        tm = {0, 0};
 
     return true;
 }
@@ -387,32 +295,35 @@ bool QTimerInfoList::timerWait(timespec &tm)
 */
 qint64 QTimerInfoList::timerRemainingTime(int timerId)
 {
-    timespec currentTime = updateCurrentTime();
-    repairTimersIfNeeded();
-    timespec tm = {0, 0};
+    return remainingDuration(timerId).count();
+}
 
-    for (const auto *t : std::as_const(*this)) {
-        if (t->id == timerId) {
-            if (currentTime < t->timeout) {
-                // time to wait
-                tm = roundToMillisecond(t->timeout - currentTime);
-                using namespace std::chrono;
-                const auto dur = duration_cast<milliseconds>(seconds{tm.tv_sec} + nanoseconds{tm.tv_nsec});
-                return dur.count();
-            } else {
-                return 0;
-            }
-        }
+milliseconds QTimerInfoList::remainingDuration(int timerId)
+{
+    timespec now = updateCurrentTime();
+
+    auto it = findTimerById(timerId);
+    if (it == cend()) {
+#ifndef QT_NO_DEBUG
+        qWarning("QTimerInfoList::timerRemainingTime: timer id %i not found", timerId);
+#endif
+        return milliseconds{-1};
     }
 
-#ifndef QT_NO_DEBUG
-    qWarning("QTimerInfoList::timerRemainingTime: timer id %i not found", timerId);
-#endif
-
-    return -1;
+    const QTimerInfo *t = *it;
+    if (now < t->timeout) // time to wait
+        return timespecToChronoMs(roundToMillisecond(t->timeout - now));
+    else
+        return milliseconds{0};
 }
 
 void QTimerInfoList::registerTimer(int timerId, qint64 interval, Qt::TimerType timerType, QObject *object)
+{
+    registerTimer(timerId, milliseconds{interval}, timerType, object);
+}
+
+void QTimerInfoList::registerTimer(int timerId, milliseconds interval,
+                                   Qt::TimerType timerType, QObject *object)
 {
     QTimerInfo *t = new QTimerInfo;
     t->id = timerId;
@@ -435,30 +346,26 @@ void QTimerInfoList::registerTimer(int timerId, qint64 interval, Qt::TimerType t
         // so our boundaries are 20 ms and 20 s
         // below 20 ms, 5% inaccuracy is below 1 ms, so we convert to high precision
         // above 20 s, 5% inaccuracy is above 1 s, so we convert to VeryCoarseTimer
-        if (interval >= 20000) {
+        if (interval >= 20s) {
             t->timerType = Qt::VeryCoarseTimer;
         } else {
             t->timeout = expected;
-            if (interval <= 20) {
+            if (interval <= 20ms) {
                 t->timerType = Qt::PreciseTimer;
                 // no adjustment is necessary
-            } else if (interval <= 20000) {
+            } else if (interval <= 20s) {
                 calculateCoarseTimerTimeout(t, currentTime);
             }
             break;
         }
         Q_FALLTHROUGH();
     case Qt::VeryCoarseTimer:
-        // the very coarse timer is based on full second precision,
-        // so we keep the interval in seconds (round to closest second)
-        t->interval /= 500;
-        t->interval += 1;
-        t->interval >>= 1;
-        t->timeout.tv_sec = currentTime.tv_sec + t->interval;
+        const seconds secs = roundToSecs(t->interval);
+        t->interval = secs;
+        t->timeout.tv_sec = currentTime.tv_sec + secs.count();
         t->timeout.tv_nsec = 0;
 
         // if we're past the half-second mark, increase the timeout again
-        using namespace std::chrono;
         if (currentTime.tv_nsec > nanoseconds{500ms}.count())
             ++t->timeout.tv_sec;
     }
@@ -477,22 +384,19 @@ void QTimerInfoList::registerTimer(int timerId, qint64 interval, Qt::TimerType t
 
 bool QTimerInfoList::unregisterTimer(int timerId)
 {
+    auto it = findTimerById(timerId);
+    if (it == cend())
+        return false; // id not found
+
     // set timer inactive
-    for (int i = 0; i < size(); ++i) {
-        QTimerInfo *t = at(i);
-        if (t->id == timerId) {
-            // found it
-            removeAt(i);
-            if (t == firstTimerInfo)
-                firstTimerInfo = nullptr;
-            if (t->activateRef)
-                *(t->activateRef) = nullptr;
-            delete t;
-            return true;
-        }
-    }
-    // id not found
-    return false;
+    QTimerInfo *t = *it;
+    if (t == firstTimerInfo)
+        firstTimerInfo = nullptr;
+    if (t->activateRef)
+        *(t->activateRef) = nullptr;
+    delete t;
+    erase(it);
+    return true;
 }
 
 bool QTimerInfoList::unregisterTimers(QObject *object)
@@ -519,15 +423,9 @@ bool QTimerInfoList::unregisterTimers(QObject *object)
 QList<QAbstractEventDispatcher::TimerInfo> QTimerInfoList::registeredTimers(QObject *object) const
 {
     QList<QAbstractEventDispatcher::TimerInfo> list;
-    for (int i = 0; i < size(); ++i) {
-        const QTimerInfo * const t = at(i);
-        if (t->obj == object) {
-            list << QAbstractEventDispatcher::TimerInfo(t->id,
-                                                        (t->timerType == Qt::VeryCoarseTimer
-                                                         ? t->interval * 1000
-                                                         : t->interval),
-                                                        t->timerType);
-        }
+    for (const QTimerInfo *const t : std::as_const(*this)) {
+        if (t->obj == object)
+            list.emplaceBack(t->id, t->interval.count(), t->timerType);
     }
     return list;
 }
@@ -540,28 +438,24 @@ int QTimerInfoList::activateTimers()
     if (qt_disable_lowpriority_timers || isEmpty())
         return 0; // nothing to do
 
-    int n_act = 0, maxCount = 0;
     firstTimerInfo = nullptr;
 
-    timespec currentTime = updateCurrentTime();
-    // qDebug() << "Thread" << QThread::currentThreadId() << "woken up at" << currentTime;
-    repairTimersIfNeeded();
-
-
+    timespec now = updateCurrentTime();
+    // qDebug() << "Thread" << QThread::currentThreadId() << "woken up at" << now;
     // Find out how many timer have expired
-    for (QTimerInfoList::const_iterator it = constBegin(); it != constEnd(); ++it) {
-        if (currentTime < (*it)->timeout)
-            break;
-        maxCount++;
-    }
+    auto stillActive = [&now](const QTimerInfo *t) { return now < t->timeout; };
+    // Find first one still active (list is sorted by timeout)
+    auto it = std::find_if(cbegin(), cend(), stillActive);
+    auto maxCount = it - cbegin();
 
+    int n_act = 0;
     //fire the timers.
     while (maxCount--) {
         if (isEmpty())
             break;
 
         QTimerInfo *currentTimerInfo = constFirst();
-        if (currentTime < currentTimerInfo->timeout)
+        if (now < currentTimerInfo->timeout)
             break; // no timer has expired
 
         if (!firstTimerInfo) {
@@ -598,11 +492,11 @@ int QTimerInfoList::activateTimers()
 #endif
 
         // determine next timeout time
-        calculateNextTimeout(currentTimerInfo, currentTime);
+        calculateNextTimeout(currentTimerInfo, now);
 
         // reinsert timer
         timerInsert(currentTimerInfo);
-        if (currentTimerInfo->interval > 0)
+        if (currentTimerInfo->interval > 0ms)
             n_act++;
 
         // Send event, but don't allow it to recurse:
diff --git a/src/corelib/kernel/qtimerinfo_unix_p.h b/src/corelib/kernel/qtimerinfo_unix_p.h
index 3d80c929..fe3257b5 100644
--- a/src/corelib/kernel/qtimerinfo_unix_p.h
+++ b/src/corelib/kernel/qtimerinfo_unix_p.h
@@ -15,6 +15,8 @@
 // We mean it.
 //
 
+#include "qplatformdefs.h" // _POSIX_MONOTONIC_CLOCK-0
+
 #include <QtCore/private/qglobal_p.h>
 
 // #define QTIMERINFO_DEBUG
@@ -29,7 +31,7 @@ QT_BEGIN_NAMESPACE
 struct QTimerInfo {
     int id;           // - timer identifier
     Qt::TimerType timerType; // - timer type
-    qint64 interval;     // - timer interval in milliseconds
+    std::chrono::milliseconds interval; // - timer interval
     timespec timeout;  // - when to actually fire
     QObject *obj;     // - object to receive event
     QTimerInfo **activateRef; // - ref from activateTimers
@@ -43,16 +45,6 @@ struct QTimerInfo {
 
 class Q_CORE_EXPORT QTimerInfoList : public QList<QTimerInfo*>
 {
-#if ((_POSIX_MONOTONIC_CLOCK-0 <= 0) && !defined(Q_OS_MAC)) || defined(QT_BOOTSTRAPPED)
-    timespec previousTime;
-    clock_t previousTicks;
-    int ticksPerSecond;
-    int msPerTick;
-
-    bool timeChanged(timespec *delta);
-    void timerRepair(const timespec &);
-#endif
-
     // state variables used by activateTimers()
     QTimerInfo *firstTimerInfo;
 
@@ -62,20 +54,26 @@ public:
     timespec currentTime;
     timespec updateCurrentTime();
 
-    // must call updateCurrentTime() first!
-    void repairTimersIfNeeded();
-
     bool timerWait(timespec &);
     void timerInsert(QTimerInfo *);
 
     qint64 timerRemainingTime(int timerId);
+    std::chrono::milliseconds remainingDuration(int timerId);
 
     void registerTimer(int timerId, qint64 interval, Qt::TimerType timerType, QObject *object);
+    void registerTimer(int timerId, std::chrono::milliseconds interval, Qt::TimerType timerType,
+                       QObject *object);
     bool unregisterTimer(int timerId);
     bool unregisterTimers(QObject *object);
     QList<QAbstractEventDispatcher::TimerInfo> registeredTimers(QObject *object) const;
 
     int activateTimers();
+
+    QList::const_iterator findTimerById(int timerId) const
+    {
+        auto matchesId = [timerId](const QTimerInfo *t) { return t->id == timerId; };
+        return std::find_if(cbegin(), cend(), matchesId);
+    }
 };
 
 QT_END_NAMESPACE
diff --git a/src/corelib/kernel/qvariant.cpp b/src/corelib/kernel/qvariant.cpp
index 647b1ded..74416ce0 100644
--- a/src/corelib/kernel/qvariant.cpp
+++ b/src/corelib/kernel/qvariant.cpp
@@ -3,7 +3,7 @@
 // Copyright (C) 2015 Olivier Goffart <ogoffart@woboq.com>
 // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
 
-#include "qvariant.h"
+#include "qvariant_p.h"
 #include "qbitarray.h"
 #include "qbytearray.h"
 #include "qdatastream.h"
@@ -47,6 +47,8 @@
 #include "qline.h"
 #endif
 
+#include <memory>
+
 #include <cmath>
 #include <float.h>
 #include <cstring>
@@ -231,24 +233,22 @@ static bool isValidMetaTypeForVariant(const QtPrivate::QMetaTypeInterface *iface
     return true;
 }
 
-template <typename F> static QVariant::PrivateShared *
-customConstructShared(size_t size, size_t align, F &&construct)
-{
-    struct Deleter {
-        void operator()(QVariant::PrivateShared *p) const
-        { QVariant::PrivateShared::free(p); }
-    };
+enum CustomConstructMoveOptions {
+    UseCopy,  // custom construct uses the copy ctor unconditionally
+    // future option: TryMove: uses move ctor if available, else copy ctor
+    ForceMove, // custom construct use the move ctor (which must exist)
+};
 
-    // this is exception-safe
-    std::unique_ptr<QVariant::PrivateShared, Deleter> ptr;
-    ptr.reset(QVariant::PrivateShared::create(size, align));
-    construct(ptr->data());
-    return ptr.release();
-}
+enum CustomConstructNullabilityOption {
+    MaybeNull, // copy might be null, might be non-null
+    NonNull, // copy is guarantueed to be non-null
+    // future option: AlwaysNull?
+};
 
 // the type of d has already been set, but other field are not set
+template <CustomConstructMoveOptions moveOption = UseCopy, CustomConstructNullabilityOption nullability = MaybeNull>
 static void customConstruct(const QtPrivate::QMetaTypeInterface *iface, QVariant::Private *d,
-                            const void *copy)
+                            std::conditional_t<moveOption == ForceMove, void *, const void *> copy)
 {
     using namespace QtMetaTypePrivate;
     Q_ASSERT(iface);
@@ -257,6 +257,10 @@ static void customConstruct(const QtPrivate::QMetaTypeInterface *iface, QVariant
     Q_ASSERT(isCopyConstructible(iface));
     Q_ASSERT(isDestructible(iface));
     Q_ASSERT(copy || isDefaultConstructible(iface));
+    if constexpr (moveOption == ForceMove)
+        Q_ASSERT(isMoveConstructible(iface));
+    if constexpr (nullability == NonNull)
+        Q_ASSUME(copy != nullptr);
 
     // need to check for nullptr_t here, as this can get called by fromValue(nullptr). fromValue() uses
     // std::addressof(value) which in this case returns the address of the nullptr object.
@@ -266,11 +270,17 @@ static void customConstruct(const QtPrivate::QMetaTypeInterface *iface, QVariant
     if (QVariant::Private::canUseInternalSpace(iface)) {
         d->is_shared = false;
         if (!copy && !iface->defaultCtr)
-            return;     // default constructor and it's OK to build in 0-filled storage, which we've already done
-        construct(iface, d->data.data, copy);
+            return;     // trivial default constructor and it's OK to build in 0-filled storage, which we've already done
+        if constexpr (moveOption == ForceMove && nullability == NonNull)
+            moveConstruct(iface, d->data.data, copy);
+        else
+            construct(iface, d->data.data, copy);
     } else {
         d->data.shared = customConstructShared(iface->size, iface->alignment, [=](void *where) {
-            construct(iface, where, copy);
+            if constexpr (moveOption == ForceMove && nullability == NonNull)
+                moveConstruct(iface, where, copy);
+            else
+                construct(iface, where, copy);
         });
         d->is_shared = true;
     }
@@ -306,59 +316,6 @@ static QVariant::Private clonePrivate(const QVariant::Private &other)
 
 } // anonymous used to hide QVariant handlers
 
-inline QVariant::PrivateShared *QVariant::PrivateShared::create(size_t size, size_t align)
-{
-    size += sizeof(PrivateShared);
-    if (align > sizeof(PrivateShared)) {
-        // The alignment is larger than the alignment we can guarantee for the pointer
-        // directly following PrivateShared, so we need to allocate some additional
-        // memory to be able to fit the object into the available memory with suitable
-        // alignment.
-        size += align - sizeof(PrivateShared);
-    }
-    void *data = operator new(size);
-    auto *ps = new (data) QVariant::PrivateShared();
-    ps->offset = int(((quintptr(ps) + sizeof(PrivateShared) + align - 1) & ~(align - 1)) - quintptr(ps));
-    return ps;
-}
-
-inline void QVariant::PrivateShared::free(PrivateShared *p)
-{
-    p->~PrivateShared();
-    operator delete(p);
-}
-
-inline QVariant::Private::Private(const QtPrivate::QMetaTypeInterface *iface) noexcept
-    : is_shared(false), is_null(false), packedType(quintptr(iface) >> 2)
-{
-    Q_ASSERT((quintptr(iface) & 0x3) == 0);
-}
-
-template <typename T> inline
-QVariant::Private::Private(std::piecewise_construct_t, const T &t)
-    : is_shared(!CanUseInternalSpace<T>), is_null(std::is_same_v<T, std::nullptr_t>)
-{
-    // confirm noexceptness
-    static constexpr bool isNothrowQVariantConstructible = noexcept(QVariant(t));
-    static constexpr bool isNothrowCopyConstructible = std::is_nothrow_copy_constructible_v<T>;
-    static constexpr bool isNothrowCopyAssignable = std::is_nothrow_copy_assignable_v<T>;
-
-    const QtPrivate::QMetaTypeInterface *iface = QtPrivate::qMetaTypeInterfaceForType<T>();
-    Q_ASSERT((quintptr(iface) & 0x3) == 0);
-    packedType = quintptr(iface) >> 2;
-
-    if constexpr (CanUseInternalSpace<T>) {
-        static_assert(isNothrowQVariantConstructible == isNothrowCopyConstructible);
-        static_assert(isNothrowQVariantConstructible == isNothrowCopyAssignable);
-        new (data.data) T(t);
-    } else {
-        static_assert(!isNothrowQVariantConstructible); // we allocate memory, even if T doesn't
-        data.shared = customConstructShared(sizeof(T), alignof(T), [=](void *where) {
-            new (where) T(t);
-        });
-    }
-}
-
 /*!
     \class QVariant
     \inmodule QtCore
@@ -586,6 +543,106 @@ QVariant::QVariant(const QVariant &p)
 {
 }
 
+/*!
+    \fn template <typename T, typename... Args, if_constructible<T, Args...> = true> QVariant::QVariant(std::in_place_type_t<T>, Args&&... args) noexcept(is_noexcept_constructible<q20::remove_cvref_t<T>, Args...>::value)
+
+    \since 6.6
+    Constructs a new variant containing a value of type \c T. The contained
+    value is is initialized with the arguments
+    \c{std::forward<Args>(args)...}.
+
+    This overload only participates in overload resolution if \c T can be
+    constructed from \a args.
+
+    This constructor is provided for STL/std::any compatibility.
+
+    \overload
+ */
+
+/*!
+
+    \fn template <typename T, typename U, typename... Args, if_constructible<T, std::initializer_list<U> &, Args...> = true> explicit QVariant::QVariant(std::in_place_type_t<T>, std::initializer_list<U> il, Args&&... args) noexcept(is_noexcept_constructible<q20::remove_cvref_t<T>, std::initializer_list<U> &, Args... >::value)
+
+    \since 6.6
+    \overload
+    This overload exists to support types with constructors taking an
+    \c initializer_list. It behaves otherwise equivalent to the
+    non-initializer list \c{in_place_type_t} overload.
+*/
+
+
+/*!
+    \fn template <typename T, typename... Args, if_constructible<T, Args...> = true> QVariant::emplace(Args&&... args)
+
+    \since 6.6
+    Replaces the object currently held in \c{*this} with an object of
+    type \c{T}, constructed from \a{args}\c{...}. If \c{*this} was non-null,
+    the previously held object is destroyed first.
+    If possible, this method will reuse memory allocated by the QVariant.
+    Returns a reference to the newly-created object.
+ */
+
+/*!
+    \fn template <typename T, typename U, typename... Args, if_constructible<T, std::initializer_list<U> &, Args...> = true> QVariant::emplace(std::initializer_list<U> list, Args&&... args)
+
+    \since 6.6
+    \overload
+    This overload exists to support types with constructors taking an
+    \c initializer_list. It behaves otherwise equivalent to the
+    non-initializer list overload.
+*/
+
+QVariant::QVariant(std::in_place_t, QMetaType type) : d(type.iface())
+{
+    // we query the metatype instead of detecting it at compile time
+    // so that we can change relocatability of internal types
+    if (!Private::canUseInternalSpace(type.iface())) {
+        d.data.shared = PrivateShared::create(type.sizeOf(), type.alignOf());
+        d.is_shared = true;
+    }
+}
+
+/*!
+    \internal
+    Returns a pointer to data suitable for placement new
+    of an object of type \a type
+    Changes the variant's metatype to \a type
+ */
+void *QVariant::prepareForEmplace(QMetaType type)
+{
+    /* There are two cases where we can reuse the existing storage
+       (1) The new type fits in QVariant's SBO storage
+       (2) We are using the externally allocated storage, the variant is
+           detached, and the new type fits into the existing storage.
+       In all other cases (3), we cannot reuse the storage.
+     */
+    auto typeFits = [&] {
+        auto newIface = type.iface();
+        auto oldIface = d.typeInterface();
+        auto newSize = PrivateShared::computeAllocationSize(newIface->size, newIface->alignment);
+        auto oldSize = PrivateShared::computeAllocationSize(oldIface->size, oldIface->alignment);
+        return newSize <= oldSize;
+    };
+    if (Private::canUseInternalSpace(type.iface())) { // (1)
+        clear();
+        d.packedType = quintptr(type.iface()) >> 2;
+        return d.data.data;
+    } else if (d.is_shared && isDetached() && typeFits()) { // (2)
+        QtMetaTypePrivate::destruct(d.typeInterface(), d.data.shared->data());
+        // compare QVariant::PrivateShared::create
+        const auto ps = d.data.shared;
+        const auto align = type.alignOf();
+        ps->offset =  PrivateShared::computeOffset(ps, align);
+        d.packedType = quintptr(type.iface()) >> 2;
+        return ps->data();
+    }
+    // (3)
+    QVariant newVariant(std::in_place, type);
+    swap(newVariant);
+    // const cast is safe, we're in a non-const method
+    return const_cast<void *>(d.storage());
+}
+
 /*!
   \fn QVariant::QVariant(const QString &val) noexcept
 
@@ -1032,7 +1089,8 @@ void QVariant::detach()
 
     Q_ASSERT(isValidMetaTypeForVariant(d.typeInterface(), constData()));
     Private dd(d.typeInterface());
-    customConstruct(d.typeInterface(), &dd, constData());
+    // null variant is never shared; anything else is NonNull
+    customConstruct<UseCopy, NonNull>(d.typeInterface(), &dd, constData());
     if (!d.data.shared->ref.deref())
         customClear(&d);
     d.data.shared = dd.data.shared;
@@ -2398,7 +2456,7 @@ QPartialOrdering QVariant::compare(const QVariant &lhs, const QVariant &rhs)
     Returns a pointer to the contained object as a generic void* that cannot be
     written to.
 
-    \sa QMetaType
+    \sa get_if(), QMetaType
  */
 
 /*!
@@ -2408,7 +2466,7 @@ QPartialOrdering QVariant::compare(const QVariant &lhs, const QVariant &rhs)
     This function detaches the QVariant. When called on a \l{isNull}{null-QVariant},
     the QVariant will not be null after the call.
 
-    \sa QMetaType
+    \sa get_if(), QMetaType
 */
 void *QVariant::data()
 {
@@ -2418,6 +2476,42 @@ void *QVariant::data()
     return const_cast<void *>(constData());
 }
 
+/*!
+    \since 6.6
+    \fn template <typename T> const T* QVariant::get_if(const QVariant *v)
+    \fn template <typename T> T* QVariant::get_if(QVariant *v)
+
+    If \a v contains an object of type \c T, returns a pointer to the contained
+    object, otherwise returns \nullptr.
+
+    The overload taking a mutable \a v detaches \a v: When called on a
+    \l{isNull()}{null} \a v with matching type \c T, \a v will not be null
+    after the call.
+
+    These functions are provided for compatibility with \c{std::variant}.
+
+    \sa data()
+*/
+
+/*!
+    \since 6.6
+    \fn template <typename T> T &QVariant::get(QVariant &v)
+    \fn template <typename T> const T &QVariant::get(const QVariant &v)
+    \fn template <typename T> T &&QVariant::get(QVariant &&v)
+    \fn template <typename T> const T &&QVariant::get(const QVariant &&v)
+
+    If \a v contains an object of type \c T, returns a reference to the contained
+    object, otherwise the call has undefined behavior.
+
+    The overloads taking a mutable \a v detach \a v: When called on a
+    \l{isNull()}{null} \a v with matching type \c T, \a v will not be null
+    after the call.
+
+    These functions are provided for compatibility with \c{std::variant}.
+
+    \sa get_if(), data()
+*/
+
 /*!
     Returns \c true if this is a null variant, false otherwise.
 
@@ -2456,6 +2550,22 @@ QDebug QVariant::qdebugHelper(QDebug dbg) const
     return dbg;
 }
 
+QVariant QVariant::moveConstruct(QMetaType type, void *data)
+{
+    QVariant var;
+    var.d = QVariant::Private(type.d_ptr);
+    customConstruct<ForceMove, NonNull>(type.d_ptr, &var.d, data);
+    return var;
+}
+
+QVariant QVariant::copyConstruct(QMetaType type, const void *data)
+{
+    QVariant var;
+    var.d = QVariant::Private(type.d_ptr);
+    customConstruct<UseCopy, NonNull>(type.d_ptr, &var.d, data);
+    return var;
+}
+
 #if QT_DEPRECATED_SINCE(6, 0)
 QT_WARNING_PUSH
 QT_WARNING_DISABLE_DEPRECATED
@@ -2576,6 +2686,12 @@ QT_WARNING_POP
     \sa setValue(), value()
 */
 
+/*! \fn template<typename T> static QVariant QVariant::fromValue(T &&value)
+
+    \since 6.6
+    \overload
+*/
+
 /*! \fn template<typename... Types> QVariant QVariant::fromStdVariant(const std::variant<Types...> &value)
     \since 5.11
 
@@ -2589,6 +2705,12 @@ QT_WARNING_POP
     \sa fromValue()
 */
 
+/*!
+    \fn template<typename... Types> QVariant QVariant::fromStdVariant(std::variant<Types...> &&value)
+    \since 6.6
+    \overload
+*/
+
 /*!
     \fn template<typename T> T qvariant_cast(const QVariant &value)
     \relates QVariant
diff --git a/src/corelib/kernel/qvariant.h b/src/corelib/kernel/qvariant.h
index d956112e..ed497869 100644
--- a/src/corelib/kernel/qvariant.h
+++ b/src/corelib/kernel/qvariant.h
@@ -10,9 +10,12 @@
 #ifndef QT_NO_DEBUG_STREAM
 #include <QtCore/qdebug.h>
 #endif
+
 #include <memory>
-#include <type_traits>
+#include <QtCore/q20type_traits.h>
+#include <QtCore/q23utility.h>
 #include <variant>
+
 #if !defined(QT_LEAN_HEADERS) || QT_LEAN_HEADERS < 1
 #  include <QtCore/qlist.h>
 #  include <QtCore/qstringlist.h>
@@ -24,6 +27,9 @@
 
 QT_BEGIN_NAMESPACE
 
+QT_ENABLE_P0846_SEMANTICS_FOR(get_if)
+QT_ENABLE_P0846_SEMANTICS_FOR(get)
+
 class QBitArray;
 class QDataStream;
 class QDate;
@@ -56,6 +62,18 @@ template<> constexpr inline bool qIsRelocatable<QVariant> = true;
 }
 class Q_CORE_EXPORT QVariant
 {
+    template <typename T, typename... Args>
+    using if_constructible = std::enable_if_t<
+        std::conjunction_v<
+            std::is_copy_constructible<q20::remove_cvref_t<T>>,
+            std::is_destructible<q20::remove_cvref_t<T>>,
+            std::is_constructible<q20::remove_cvref_t<T>, Args...>
+        >,
+    bool>;
+
+    template <typename T>
+    using if_rvalue = std::enable_if_t<!std::is_reference_v<T>, bool>;
+
     struct CborValueStandIn { qint64 n; void *c; int t; };
 public:
     struct PrivateShared
@@ -63,6 +81,8 @@ public:
     private:
         inline PrivateShared() : ref(1) { }
     public:
+        static int computeOffset(PrivateShared *ps, size_t align);
+        static size_t computeAllocationSize(size_t size, size_t align);
         static PrivateShared *create(size_t size, size_t align);
         static void free(PrivateShared *p);
 
@@ -199,6 +219,37 @@ public:
     explicit QVariant(QMetaType type, const void *copy = nullptr);
     QVariant(const QVariant &other);
 
+private:
+    template <typename T, typename ...Args>
+    using is_noexcept_constructible = std::conjunction<
+            std::bool_constant<Private::CanUseInternalSpace<T>>,
+            std::is_nothrow_constructible<T, Args...>
+        >;
+
+public:
+    template <typename T, typename... Args,
+             if_constructible<T, Args...> = true>
+    explicit QVariant(std::in_place_type_t<T>, Args&&... args)
+            noexcept(is_noexcept_constructible<q20::remove_cvref_t<T>, Args...>::value)
+        : QVariant(std::in_place, QMetaType::fromType<q20::remove_cvref_t<T>>() )
+    {
+        void *data = const_cast<void *>(constData());
+        new (data) T(std::forward<Args>(args)...);
+    }
+
+    template <typename T, typename U, typename... Args,
+             if_constructible<T, std::initializer_list<U> &, Args...> = true>
+    explicit QVariant(std::in_place_type_t<T>, std::initializer_list<U> il, Args&&... args)
+            noexcept(is_noexcept_constructible<q20::remove_cvref_t<T>,
+                                               std::initializer_list<U> &,
+                                               Args...
+                    >::value)
+        : QVariant(std::in_place, QMetaType::fromType<q20::remove_cvref_t<T>>())
+    {
+        char *data = static_cast<char *>(const_cast<void *>(constData()));
+        new (data) T(il, std::forward<Args>(args)...);
+    }
+
     // primitives
     QVariant(int i) noexcept;
     QVariant(uint ui) noexcept;
@@ -396,6 +447,43 @@ public:
     { return d.storage(); }
     inline const void *data() const { return constData(); }
 
+private:
+    template <typename T>
+    void verifySuitableForEmplace()
+    {
+        static_assert(!std::is_reference_v<T>,
+                      "QVariant does not support reference types");
+        static_assert(!std::is_const_v<T>,
+                      "QVariant does not support const types");
+        static_assert(std::is_copy_constructible_v<T>,
+                      "QVariant requires that the type is copyable");
+        static_assert(std::is_destructible_v<T>,
+                      "QVariant requires that the type is destructible");
+    }
+
+    template <typename T, typename... Args>
+    T &emplaceImpl(Args&&... args)
+    {
+        verifySuitableForEmplace<T>();
+        auto data = static_cast<T *>(prepareForEmplace(QMetaType::fromType<T>()));
+        return *q20::construct_at(data, std::forward<Args>(args)...);
+    }
+
+public:
+    template <typename T, typename... Args,
+              if_constructible<T, Args...> = true>
+    T &emplace(Args&&... args)
+    {
+        return emplaceImpl<T>(std::forward<Args>(args)...);
+    }
+
+    template <typename T, typename U, typename... Args,
+             if_constructible<T, std::initializer_list<U> &, Args...> = true>
+    T &emplace(std::initializer_list<U> list, Args&&... args)
+    {
+        return emplaceImpl<T>(list, std::forward<Args>(args)...);
+    }
+
     template<typename T, typename = std::enable_if_t<!std::is_same_v<std::decay_t<T>, QVariant>>>
     void setValue(T &&avalue)
     {
@@ -431,6 +519,39 @@ public:
         return t;
     }
 
+    template<typename T, if_rvalue<T> = true>
+#ifndef Q_QDOC
+        /* needs is_copy_constructible for variants semantics, is_move_constructible so that moveConstruct works
+          (but copy_constructible implies move_constructble, so don't bother checking)
+        */
+    static inline auto fromValue(T &&value)
+        noexcept(std::is_nothrow_copy_constructible_v<T> && Private::CanUseInternalSpace<T>)
+        -> std::enable_if_t<std::conjunction_v<std::is_copy_constructible<T>,
+                                               std::is_destructible<T>>, QVariant>
+#else
+    static inline QVariant fromValue(T &&value)
+#endif
+    {
+        // handle special cases
+        using Type = std::remove_cv_t<T>;
+        if constexpr (std::is_null_pointer_v<Type>)
+            return QVariant(QMetaType::fromType<std::nullptr_t>());
+        else if constexpr (std::is_same_v<Type, QVariant>)
+            return std::forward<T>(value);
+        else if constexpr (std::is_same_v<Type, std::monostate>)
+            return QVariant();
+        QMetaType mt = QMetaType::fromType<Type>();
+        mt.registerType(); // we want the type stored in QVariant to always be registered
+        // T is a forwarding reference, so if T satifies the enable-ifery,
+        // we get this overload even if T is an lvalue reference and thus must check here
+        // Moreover, we only try to move if the type is actually moveable and not if T is const
+        // as in const int i; QVariant::fromValue(std::move(i));
+        if constexpr (std::conjunction_v<std::is_move_constructible<Type>, std::negation<std::is_const<T>>>)
+            return moveConstruct(QMetaType::fromType<Type>(), std::addressof(value));
+        else
+            return copyConstruct(mt, std::addressof(value));
+    }
+
     template<typename T>
 #ifndef Q_QDOC
     static inline auto fromValue(const T &value)
@@ -442,15 +563,23 @@ public:
     {
         if constexpr (std::is_null_pointer_v<T>)
             return QVariant(QMetaType::fromType<std::nullptr_t>());
+        else if constexpr (std::is_same_v<T, QVariant>)
+            return value;
+        else if constexpr (std::is_same_v<T, std::monostate>)
+            return QVariant();
         return QVariant(QMetaType::fromType<T>(), std::addressof(value));
     }
 
     template<typename... Types>
     static inline QVariant fromStdVariant(const std::variant<Types...> &value)
     {
-        if (value.valueless_by_exception())
-            return QVariant();
-        return std::visit([](const auto &arg) { return QVariant::fromValue(arg); }, value);
+        return fromStdVariantImpl(value);
+    }
+
+    template<typename... Types>
+    static QVariant fromStdVariant(std::variant<Types...> &&value)
+    {
+        return fromStdVariantImpl(std::move(value));
     }
 
     template<typename T>
@@ -464,6 +593,17 @@ public:
     static QPartialOrdering compare(const QVariant &lhs, const QVariant &rhs);
 
 private:
+    template <typename StdVariant>
+    static QVariant fromStdVariantImpl(StdVariant &&v)
+    {
+        if (Q_UNLIKELY(v.valueless_by_exception()))
+            return QVariant();
+        auto visitor = [](auto &&arg) {
+            return QVariant::fromValue(q23::forward_like<StdVariant>(arg));
+        };
+        return std::visit(visitor, std::forward<StdVariant>(v));
+    }
+
     friend inline bool operator==(const QVariant &a, const QVariant &b)
     { return a.equals(b); }
     friend inline bool operator!=(const QVariant &a, const QVariant &b)
@@ -475,6 +615,43 @@ private:
     }
     QDebug qdebugHelper(QDebug) const;
 #endif
+
+    template <typename T>
+    friend T *get_if(QVariant *v) noexcept
+    {
+        // data() will detach from is_null, returning non-nullptr
+        if (!v || v->d.type() != QMetaType::fromType<T>())
+            return nullptr;
+        return static_cast<T*>(v->data());
+    }
+    template <typename T>
+    friend const T *get_if(const QVariant *v) noexcept
+    {
+        // (const) data() will not detach from is_null, return nullptr
+        if (!v || v->d.is_null || v->d.type() != QMetaType::fromType<T>())
+            return nullptr;
+        return static_cast<const T*>(v->data());
+    }
+
+#define Q_MK_GET(cvref) \
+    template <typename T> \
+    friend T cvref get(QVariant cvref v) \
+    { \
+        if constexpr (std::is_const_v<T cvref>) \
+            Q_ASSERT(!v.d.is_null); \
+        Q_ASSERT(v.d.type() == QMetaType::fromType<q20::remove_cvref_t<T>>()); \
+        return static_cast<T cvref>(*get_if<T>(&v)); \
+    } \
+    /* end */
+    Q_MK_GET(&)
+    Q_MK_GET(const &)
+    Q_MK_GET(&&)
+    Q_MK_GET(const &&)
+#undef Q_MK_GET
+
+    static QVariant moveConstruct(QMetaType type, void *data);
+    static QVariant copyConstruct(QMetaType type, const void *data);
+
     template<typename T>
     friend inline T qvariant_cast(const QVariant &);
 protected:
@@ -496,6 +673,11 @@ private:
     // int variant, so delete this constructor:
     QVariant(QMetaType::Type) = delete;
 
+    // used to setup the QVariant internals for the "real" inplace ctor
+    QVariant(std::in_place_t, QMetaType type);
+    // helper for emplace
+    void *prepareForEmplace(QMetaType type);
+
     // These constructors don't create QVariants of the type associated
     // with the enum, as expected, but they would create a QVariant of
     // type int with the value of the enum value.
@@ -515,18 +697,6 @@ public:
     inline const DataPtr &data_ptr() const { return d; }
 };
 
-template<>
-inline QVariant QVariant::fromValue(const QVariant &value)
-{
-    return value;
-}
-
-template<>
-inline QVariant QVariant::fromValue(const std::monostate &) noexcept
-{
-    return QVariant();
-}
-
 inline bool QVariant::isValid() const
 {
     return d.type().isValid();
diff --git a/src/corelib/kernel/qvariant_p.h b/src/corelib/kernel/qvariant_p.h
new file mode 100644
index 00000000..d2a73909
--- /dev/null
+++ b/src/corelib/kernel/qvariant_p.h
@@ -0,0 +1,109 @@
+// Copyright (C) 2023 The Qt Company Ltd.
+// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
+
+#ifndef QVARIANT_P_H
+#define QVARIANT_P_H
+
+//
+//  W A R N I N G
+//  -------------
+//
+// This file is not part of the Qt API.  It exists purely as an
+// implementation detail.  This header file may change from version to
+// version without notice, or even be removed.
+//
+// We mean it.
+//
+
+#include "qvariant.h"
+
+QT_BEGIN_NAMESPACE
+
+inline auto customConstructSharedImpl(size_t size, size_t align)
+{
+    struct Deleter {
+        void operator()(QVariant::PrivateShared *p) const
+        { QVariant::PrivateShared::free(p); }
+    };
+
+    // this is exception-safe
+    std::unique_ptr<QVariant::PrivateShared, Deleter> ptr;
+    ptr.reset(QVariant::PrivateShared::create(size, align));
+    return ptr;
+}
+
+template <typename F> static QVariant::PrivateShared *
+customConstructShared(size_t size, size_t align, F &&construct)
+{
+    auto ptr = customConstructSharedImpl(size, align);
+    construct(ptr->data());
+    return ptr.release();
+}
+
+inline int QVariant::PrivateShared::computeOffset(PrivateShared *ps, size_t align)
+{
+    return int(((quintptr(ps) + sizeof(PrivateShared) + align - 1) & ~(align - 1)) - quintptr(ps));
+}
+
+inline size_t QVariant::PrivateShared::computeAllocationSize(size_t size, size_t align)
+{
+    size += sizeof(PrivateShared);
+    if (align > sizeof(PrivateShared)) {
+        // The alignment is larger than the alignment we can guarantee for the pointer
+        // directly following PrivateShared, so we need to allocate some additional
+        // memory to be able to fit the object into the available memory with suitable
+        // alignment.
+        size += align - sizeof(PrivateShared);
+    }
+    return size;
+}
+
+inline QVariant::PrivateShared *QVariant::PrivateShared::create(size_t size, size_t align)
+{
+    size = computeAllocationSize(size, align);
+    void *data = operator new(size);
+    auto *ps = new (data) QVariant::PrivateShared();
+    ps->offset = computeOffset(ps, align);
+    return ps;
+}
+
+inline void QVariant::PrivateShared::free(PrivateShared *p)
+{
+    p->~PrivateShared();
+    operator delete(p);
+}
+
+inline QVariant::Private::Private(const QtPrivate::QMetaTypeInterface *iface) noexcept
+    : is_shared(false), is_null(false), packedType(quintptr(iface) >> 2)
+{
+    Q_ASSERT((quintptr(iface) & 0x3) == 0);
+}
+
+template <typename T> inline
+QVariant::Private::Private(std::piecewise_construct_t, const T &t)
+    : is_shared(!CanUseInternalSpace<T>), is_null(std::is_same_v<T, std::nullptr_t>)
+{
+    // confirm noexceptness
+    static constexpr bool isNothrowQVariantConstructible = noexcept(QVariant(t));
+    static constexpr bool isNothrowCopyConstructible = std::is_nothrow_copy_constructible_v<T>;
+    static constexpr bool isNothrowCopyAssignable = std::is_nothrow_copy_assignable_v<T>;
+
+    const QtPrivate::QMetaTypeInterface *iface = QtPrivate::qMetaTypeInterfaceForType<T>();
+    Q_ASSERT((quintptr(iface) & 0x3) == 0);
+    packedType = quintptr(iface) >> 2;
+
+    if constexpr (CanUseInternalSpace<T>) {
+        static_assert(isNothrowQVariantConstructible == isNothrowCopyConstructible);
+        static_assert(isNothrowQVariantConstructible == isNothrowCopyAssignable);
+        new (data.data) T(t);
+    } else {
+        static_assert(!isNothrowQVariantConstructible); // we allocate memory, even if T doesn't
+        data.shared = customConstructShared(sizeof(T), alignof(T), [=](void *where) {
+            new (where) T(t);
+        });
+    }
+}
+
+QT_END_NAMESPACE
+
+#endif // QVARIANT_P_H
diff --git a/src/corelib/mimetypes/qmimedatabase.cpp b/src/corelib/mimetypes/qmimedatabase.cpp
index fd632495..63f398a9 100644
--- a/src/corelib/mimetypes/qmimedatabase.cpp
+++ b/src/corelib/mimetypes/qmimedatabase.cpp
@@ -190,7 +190,7 @@ QMimeType QMimeDatabasePrivate::mimeTypeForName(const QString &nameOrAlias)
 {
     const QString mimeName = resolveAlias(nameOrAlias);
     for (const auto &provider : providers()) {
-        const QMimeType mime = provider->mimeTypeForName(mimeName);
+        QMimeType mime = provider->mimeTypeForName(mimeName);
         if (mime.isValid())
             return mime;
     }
diff --git a/src/corelib/mimetypes/qmimemagicrule.cpp b/src/corelib/mimetypes/qmimemagicrule.cpp
index 9111f1f0..3458fef6 100644
--- a/src/corelib/mimetypes/qmimemagicrule.cpp
+++ b/src/corelib/mimetypes/qmimemagicrule.cpp
@@ -148,12 +148,8 @@ static inline QByteArray makePattern(const QByteArray &value)
                 char c = 0;
                 for (int i = 0; i < 2 && p + 1 < e; ++i) {
                     ++p;
-                    if (*p >= '0' && *p <= '9')
-                        c = (c << 4) + *p - '0';
-                    else if (*p >= 'a' && *p <= 'f')
-                        c = (c << 4) + *p - 'a' + 10;
-                    else if (*p >= 'A' && *p <= 'F')
-                        c = (c << 4) + *p - 'A' + 10;
+                    if (const int h = fromHex(*p); h != -1)
+                        c = (c << 4) + h;
                     else
                         continue;
                 }
diff --git a/src/corelib/mimetypes/qmimeprovider.cpp b/src/corelib/mimetypes/qmimeprovider.cpp
index 8a88a267..586a0c64 100644
--- a/src/corelib/mimetypes/qmimeprovider.cpp
+++ b/src/corelib/mimetypes/qmimeprovider.cpp
@@ -20,7 +20,7 @@
 #include <QtEndian>
 
 #if QT_CONFIG(mimetype_database)
-#  if defined(Q_CC_MSVC)
+#  if defined(Q_CC_MSVC_ONLY)
 #    pragma section(".qtmimedatabase", read, shared)
 __declspec(allocate(".qtmimedatabase")) __declspec(align(4096))
 #  elif defined(Q_OS_DARWIN)
@@ -116,7 +116,7 @@ bool QMimeBinaryProvider::CacheFile::load()
         const int minor = getUint16(2);
         m_valid = (major == 1 && minor >= 1 && minor <= 2);
     }
-    m_mtime = QFileInfo(file).lastModified();
+    m_mtime = QFileInfo(file).lastModified(QTimeZone::UTC);
     return m_valid;
 }
 
@@ -130,10 +130,7 @@ bool QMimeBinaryProvider::CacheFile::reload()
     return load();
 }
 
-QMimeBinaryProvider::~QMimeBinaryProvider()
-{
-    delete m_cacheFile;
-}
+QMimeBinaryProvider::~QMimeBinaryProvider() = default;
 
 bool QMimeBinaryProvider::isValid()
 {
@@ -161,7 +158,7 @@ enum {
 bool QMimeBinaryProvider::checkCacheChanged()
 {
     QFileInfo fileInfo(m_cacheFile->file);
-    if (fileInfo.lastModified() > m_cacheFile->m_mtime) {
+    if (fileInfo.lastModified(QTimeZone::UTC) > m_cacheFile->m_mtime) {
         // Deletion can't happen by just running update-mime-database.
         // But the user could use rm -rf :-)
         m_cacheFile->reload(); // will mark itself as invalid on failure
@@ -174,7 +171,7 @@ void QMimeBinaryProvider::ensureLoaded()
 {
     if (!m_cacheFile) {
         const QString cacheFileName = m_directory + "/mime.cache"_L1;
-        m_cacheFile = new CacheFile(cacheFileName);
+        m_cacheFile = std::make_unique<CacheFile>(cacheFileName);
         m_mimetypeListLoaded = false;
         m_mimetypeExtra.clear();
     } else {
@@ -185,10 +182,8 @@ void QMimeBinaryProvider::ensureLoaded()
             return; // nothing to do
         }
     }
-    if (!m_cacheFile->isValid()) { // verify existence and version
-        delete m_cacheFile;
-        m_cacheFile = nullptr;
-    }
+    if (!m_cacheFile->isValid()) // verify existence and version
+        m_cacheFile.reset();
 }
 
 static QMimeType mimeTypeForNameUnchecked(const QString &name)
@@ -218,20 +213,27 @@ void QMimeBinaryProvider::addFileNameMatches(const QString &fileName, QMimeGlobM
         return;
     Q_ASSERT(m_cacheFile);
     const QString lowerFileName = fileName.toLower();
+    int numMatches = 0;
     // Check literals (e.g. "Makefile")
-    matchGlobList(result, m_cacheFile, m_cacheFile->getUint32(PosLiteralListOffset), fileName);
+    numMatches = matchGlobList(result, m_cacheFile.get(),
+                               m_cacheFile->getUint32(PosLiteralListOffset), fileName);
     // Check the very common *.txt cases with the suffix tree
-    if (result.m_matchingMimeTypes.isEmpty()) {
+    if (numMatches == 0) {
         const int reverseSuffixTreeOffset = m_cacheFile->getUint32(PosReverseSuffixTreeOffset);
         const int numRoots = m_cacheFile->getUint32(reverseSuffixTreeOffset);
         const int firstRootOffset = m_cacheFile->getUint32(reverseSuffixTreeOffset + 4);
-        matchSuffixTree(result, m_cacheFile, numRoots, firstRootOffset, lowerFileName, lowerFileName.size() - 1, false);
-        if (result.m_matchingMimeTypes.isEmpty())
-            matchSuffixTree(result, m_cacheFile, numRoots, firstRootOffset, fileName, fileName.size() - 1, true);
+        if (matchSuffixTree(result, m_cacheFile.get(), numRoots, firstRootOffset, lowerFileName,
+                            lowerFileName.size() - 1, false)) {
+            ++numMatches;
+        } else if (matchSuffixTree(result, m_cacheFile.get(), numRoots, firstRootOffset, fileName,
+                                   fileName.size() - 1, true)) {
+            ++numMatches;
+        }
     }
     // Check complex globs (e.g. "callgrind.out[0-9]*" or "README*")
-    if (result.m_matchingMimeTypes.isEmpty())
-        matchGlobList(result, m_cacheFile, m_cacheFile->getUint32(PosGlobListOffset), fileName);
+    if (numMatches == 0)
+        matchGlobList(result, m_cacheFile.get(), m_cacheFile->getUint32(PosGlobListOffset),
+                      fileName);
 }
 
 bool QMimeBinaryProvider::isMimeTypeGlobsExcluded(const char *mimeTypeName)
@@ -245,8 +247,10 @@ void QMimeBinaryProvider::excludeMimeTypeGlobs(const QStringList &toExclude)
         appendIfNew(m_mimeTypesWithExcludedGlobs, mt);
 }
 
-void QMimeBinaryProvider::matchGlobList(QMimeGlobMatchResult &result, CacheFile *cacheFile, int off, const QString &fileName)
+int QMimeBinaryProvider::matchGlobList(QMimeGlobMatchResult &result, CacheFile *cacheFile, int off,
+                                       const QString &fileName)
 {
+    int numMatches = 0;
     const int numGlobs = cacheFile->getUint32(off);
     //qDebug() << "Loading" << numGlobs << "globs from" << cacheFile->file.fileName() << "at offset" << cacheFile->globListOffset;
     for (int i = 0; i < numGlobs; ++i) {
@@ -264,9 +268,12 @@ void QMimeBinaryProvider::matchGlobList(QMimeGlobMatchResult &result, CacheFile
             continue;
 
         QMimeGlobPattern glob(pattern, QString() /*unused*/, weight, qtCaseSensitive);
-        if (glob.matchFileName(fileName))
+        if (glob.matchFileName(fileName)) {
             result.addMatch(QLatin1StringView(mimeType), weight, pattern);
+            ++numMatches;
+        }
     }
+    return numMatches;
 }
 
 bool QMimeBinaryProvider::matchSuffixTree(QMimeGlobMatchResult &result,
@@ -358,7 +365,7 @@ void QMimeBinaryProvider::findByMagic(const QByteArray &data, int *accuracyPtr,
         const int off = firstMatchOffset + i * 16;
         const int numMatchlets = m_cacheFile->getUint32(off + 8);
         const int firstMatchletOffset = m_cacheFile->getUint32(off + 12);
-        if (matchMagicRule(m_cacheFile, numMatchlets, firstMatchletOffset, data)) {
+        if (matchMagicRule(m_cacheFile.get(), numMatchlets, firstMatchletOffset, data)) {
             const int mimeTypeOffset = m_cacheFile->getUint32(off + 4);
             const char *mimeType = m_cacheFile->getCharStar(mimeTypeOffset);
             *accuracyPtr = m_cacheFile->getUint32(off);
@@ -395,8 +402,7 @@ void QMimeBinaryProvider::addParents(const QString &mime, QStringList &result)
                 const int parentOffset = m_cacheFile->getUint32(parentsOffset + 4 + 4 * i);
                 const char *aParent = m_cacheFile->getCharStar(parentOffset);
                 const QString strParent = QString::fromLatin1(aParent);
-                if (!result.contains(strParent))
-                    result.append(strParent);
+                appendIfNew(result, strParent);
             }
             break;
         }
@@ -443,8 +449,7 @@ void QMimeBinaryProvider::addAliases(const QString &name, QStringList &result)
             const int aliasOffset = m_cacheFile->getUint32(off);
             const char *alias = m_cacheFile->getCharStar(aliasOffset);
             const QString strAlias = QString::fromLatin1(alias);
-            if (!result.contains(strAlias))
-                result.append(strAlias);
+            appendIfNew(result, strAlias);
         }
     }
 }
@@ -485,11 +490,7 @@ void QMimeBinaryProvider::addAllMimeTypes(QList<QMimeType> &result)
 
 bool QMimeBinaryProvider::loadMimeTypePrivate(QMimeTypePrivate &data)
 {
-#ifdef QT_NO_XMLSTREAMREADER
-    Q_UNUSED(data);
-    qWarning("Cannot load mime type since QXmlStreamReader is not available.");
-    return false;
-#else
+#if QT_CONFIG(xmlstreamreader)
     if (data.loaded)
         return true;
 
@@ -540,8 +541,7 @@ bool QMimeBinaryProvider::loadMimeTypePrivate(QMimeTypePrivate &data)
                     if (mainPattern.isEmpty() && pattern.startsWith(u'*')) {
                         mainPattern = pattern;
                     }
-                    if (!extra.globPatterns.contains(pattern))
-                        extra.globPatterns.append(pattern);
+                    appendIfNew(extra.globPatterns, pattern);
                 }
                 xml.skipCurrentElement();
             }
@@ -561,7 +561,11 @@ bool QMimeBinaryProvider::loadMimeTypePrivate(QMimeTypePrivate &data)
     data.localeComments = e.localeComments;
     data.globPatterns = e.globPatterns;
     return true;
-#endif //QT_NO_XMLSTREAMREADER
+#else
+    Q_UNUSED(data);
+    qWarning("Cannot load mime type since QXmlStreamReader is not available.");
+    return false;
+#endif // feature xmlstreamreader
 }
 
 // Binary search in the icons or generic-icons list
@@ -593,7 +597,7 @@ QLatin1StringView QMimeBinaryProvider::iconForMime(CacheFile *cacheFile, int pos
 void QMimeBinaryProvider::loadIcon(QMimeTypePrivate &data)
 {
     const QByteArray inputMime = data.name.toLatin1();
-    const QLatin1StringView icon = iconForMime(m_cacheFile, PosIconsListOffset, inputMime);
+    const QLatin1StringView icon = iconForMime(m_cacheFile.get(), PosIconsListOffset, inputMime);
     if (!icon.isEmpty()) {
         data.iconName = icon;
     }
@@ -602,7 +606,7 @@ void QMimeBinaryProvider::loadIcon(QMimeTypePrivate &data)
 void QMimeBinaryProvider::loadGenericIcon(QMimeTypePrivate &data)
 {
     const QByteArray inputMime = data.name.toLatin1();
-    const QLatin1StringView icon = iconForMime(m_cacheFile, PosGenericIconsListOffset, inputMime);
+    const QLatin1StringView icon = iconForMime(m_cacheFile.get(), PosGenericIconsListOffset, inputMime);
     if (!icon.isEmpty()) {
         data.genericIconName = icon;
     }
@@ -830,13 +834,10 @@ void QMimeXMLProvider::addParent(const QString &child, const QString &parent)
 void QMimeXMLProvider::addAliases(const QString &name, QStringList &result)
 {
     // Iterate through the whole hash. This method is rarely used.
-    for (auto it = m_aliases.constBegin(), end = m_aliases.constEnd() ; it != end ; ++it) {
-        if (it.value() == name) {
-            if (!result.contains(it.key()))
-                result.append(it.key());
-        }
+    for (const auto &[alias, mimeName] : std::as_const(m_aliases).asKeyValueRange()) {
+        if (mimeName == name)
+            appendIfNew(result, alias);
     }
-
 }
 
 QString QMimeXMLProvider::resolveAlias(const QString &name)
diff --git a/src/corelib/mimetypes/qmimeprovider_p.h b/src/corelib/mimetypes/qmimeprovider_p.h
index 7f4d9542..e498cf8c 100644
--- a/src/corelib/mimetypes/qmimeprovider_p.h
+++ b/src/corelib/mimetypes/qmimeprovider_p.h
@@ -31,6 +31,8 @@ class QMimeMagicRuleMatcher;
 
 class QMimeProviderBase
 {
+    Q_DISABLE_COPY(QMimeProviderBase)
+
 public:
     QMimeProviderBase(QMimeDatabasePrivate *db, const QString &directory);
     virtual ~QMimeProviderBase() {}
@@ -109,7 +111,8 @@ public:
 private:
     struct CacheFile;
 
-    void matchGlobList(QMimeGlobMatchResult &result, CacheFile *cacheFile, int offset, const QString &fileName);
+    int matchGlobList(QMimeGlobMatchResult &result, CacheFile *cacheFile, int offset,
+                      const QString &fileName);
     bool matchSuffixTree(QMimeGlobMatchResult &result, CacheFile *cacheFile, int numEntries,
                          int firstOffset, const QString &fileName, qsizetype charPos,
                          bool caseSensitiveCheck);
@@ -119,7 +122,7 @@ private:
     void loadMimeTypeList();
     bool checkCacheChanged();
 
-    CacheFile *m_cacheFile = nullptr;
+    std::unique_ptr<CacheFile> m_cacheFile;
     QStringList m_cacheFileNames;
     QSet<QString> m_mimetypeNames;
     bool m_mimetypeListLoaded;
diff --git a/src/corelib/mimetypes/qmimetype.cpp b/src/corelib/mimetypes/qmimetype.cpp
index 1b2a5e23..b824a420 100644
--- a/src/corelib/mimetypes/qmimetype.cpp
+++ b/src/corelib/mimetypes/qmimetype.cpp
@@ -285,7 +285,7 @@ QString QMimeType::genericIconName() const
         // (i.e. "video-x-generic" in the previous example).
         const QString group = name();
         QStringView groupRef(group);
-        const int slashindex = groupRef.indexOf(u'/');
+        const qsizetype slashindex = groupRef.indexOf(u'/');
         if (slashindex != -1)
             groupRef = groupRef.left(slashindex);
         return groupRef + "-x-generic"_L1;
@@ -295,7 +295,7 @@ QString QMimeType::genericIconName() const
 
 static QString make_default_icon_name_from_mimetype_name(QString iconName)
 {
-    const int slashindex = iconName.indexOf(u'/');
+    const qsizetype slashindex = iconName.indexOf(u'/');
     if (slashindex != -1)
         iconName[slashindex] = u'-';
     return iconName;
diff --git a/src/corelib/mimetypes/qmimetypeparser.cpp b/src/corelib/mimetypes/qmimetypeparser.cpp
index 0cb7b248..66cbc32b 100644
--- a/src/corelib/mimetypes/qmimetypeparser.cpp
+++ b/src/corelib/mimetypes/qmimetypeparser.cpp
@@ -139,7 +139,7 @@ bool QMimeTypeParserBase::parseNumber(QStringView n, int *target, QString *error
     return true;
 }
 
-#ifndef QT_NO_XMLSTREAMREADER
+#if QT_CONFIG(xmlstreamreader)
 struct CreateMagicMatchRuleResult
 {
     QString errorMessage; // must be first
@@ -160,16 +160,11 @@ static CreateMagicMatchRuleResult createMagicMatchRule(const QXmlStreamAttribute
     const auto mask = atts.value(QLatin1StringView(matchMaskAttributeC));
     return CreateMagicMatchRuleResult(type, value, offsets, mask);
 }
-#endif
+#endif // feature xmlstreamreader
 
 bool QMimeTypeParserBase::parse(QIODevice *dev, const QString &fileName, QString *errorMessage)
 {
-#ifdef QT_NO_XMLSTREAMREADER
-    Q_UNUSED(dev);
-    if (errorMessage)
-        *errorMessage = QString::fromLatin1("QXmlStreamReader is not available, cannot parse '%1'.").arg(fileName);
-    return false;
-#else
+#if QT_CONFIG(xmlstreamreader)
     QMimeTypePrivate data;
     data.loaded = true;
     int priority = 50;
@@ -311,7 +306,12 @@ bool QMimeTypeParserBase::parse(QIODevice *dev, const QString &fileName, QString
     }
 
     return true;
-#endif //QT_NO_XMLSTREAMREADER
+#else
+    Q_UNUSED(dev);
+    if (errorMessage)
+        *errorMessage = "QXmlStreamReader is not available, cannot parse '%1'."_L1.arg(fileName);
+    return false;
+#endif // feature xmlstreamreader
 }
 
 QT_END_NAMESPACE
diff --git a/src/corelib/platform/android/qandroidextras.cpp b/src/corelib/platform/android/qandroidextras.cpp
index 7499a6ac..85f8a7e8 100644
--- a/src/corelib/platform/android/qandroidextras.cpp
+++ b/src/corelib/platform/android/qandroidextras.cpp
@@ -1083,29 +1083,29 @@ static void sendRequestPermissionsResult(JNIEnv *env, jobject *obj, jint request
 QFuture<QtAndroidPrivate::PermissionResult>
 requestPermissionsInternal(const QStringList &permissions)
 {
+    // No mechanism to request permission for SDK version below 23, because
+    // permissions defined in the manifest are granted at install time.
+    if (QtAndroidPrivate::androidSdkVersion() < 23) {
+        QList<QtAndroidPrivate::PermissionResult> result;
+        result.reserve(permissions.size());
+        // ### can we kick off all checkPermission()s, and whenAll() collect results?
+        for (const QString &permission : permissions)
+            result.push_back(QtAndroidPrivate::checkPermission(permission).result());
+        return QtFuture::makeReadyRangeFuture(result);
+    }
+
+    if (!QtAndroidPrivate::acquireAndroidDeadlockProtector())
+        return QtFuture::makeReadyValueFuture(QtAndroidPrivate::Denied);
+
     QSharedPointer<QPromise<QtAndroidPrivate::PermissionResult>> promise;
     promise.reset(new QPromise<QtAndroidPrivate::PermissionResult>());
     QFuture<QtAndroidPrivate::PermissionResult> future = promise->future();
     promise->start();
 
-    // No mechanism to request permission for SDK version below 23, because
-    // permissions defined in the manifest are granted at install time.
-    if (QtAndroidPrivate::androidSdkVersion() < 23) {
-        for (int i = 0; i < permissions.size(); ++i)
-            promise->addResult(QtAndroidPrivate::checkPermission(permissions.at(i)).result(), i);
-        promise->finish();
-        return future;
-    }
-
-    if (!QtAndroidPrivate::acquireAndroidDeadlockProtector()) {
-        promise->addResult(QtAndroidPrivate::Denied);
-        promise->finish();
-        return future;
-    }
-
     const int requestCode = nextRequestCode();
     QMutexLocker locker(&g_pendingPermissionRequestsMutex);
     g_pendingPermissionRequests->insert(requestCode, promise);
+    locker.unlock();
 
     QNativeInterface::QAndroidApplication::runOnAndroidMainThread([permissions, requestCode] {
         QJniEnvironment env;
@@ -1144,15 +1144,9 @@ QFuture<QtAndroidPrivate::PermissionResult>
 QtAndroidPrivate::requestPermissions(const QStringList &permissions)
 {
     // avoid the uneccessary call and response to an empty permission string
-    if (permissions.size() > 0)
-        return requestPermissionsInternal(permissions);
-
-    QPromise<QtAndroidPrivate::PermissionResult> promise;
-    QFuture<QtAndroidPrivate::PermissionResult> future = promise.future();
-    promise.start();
-    promise.addResult(QtAndroidPrivate::Denied);
-    promise.finish();
-    return future;
+    if (permissions.isEmpty())
+        return QtFuture::makeReadyValueFuture(QtAndroidPrivate::Denied);
+    return requestPermissionsInternal(permissions);
 }
 
 /*!
@@ -1166,22 +1160,15 @@ QtAndroidPrivate::requestPermissions(const QStringList &permissions)
 QFuture<QtAndroidPrivate::PermissionResult>
 QtAndroidPrivate::checkPermission(const QString &permission)
 {
-    QPromise<QtAndroidPrivate::PermissionResult> promise;
-    QFuture<QtAndroidPrivate::PermissionResult> future = promise.future();
-    promise.start();
-
-    if (permission.size() > 0) {
+    QtAndroidPrivate::PermissionResult result = Denied;
+    if (!permission.isEmpty()) {
         auto res = QJniObject::callStaticMethod<jint>(qtNativeClassName,
                                                       "checkSelfPermission",
                                                       "(Ljava/lang/String;)I",
                                                       QJniObject::fromString(permission).object());
-        promise.addResult(resultFromAndroid(res));
-    } else {
-        promise.addResult(QtAndroidPrivate::Denied);
+        result = resultFromAndroid(res);
     }
-
-    promise.finish();
-    return future;
+    return QtFuture::makeReadyValueFuture(result);
 }
 
 bool QtAndroidPrivate::registerPermissionNatives()
diff --git a/src/corelib/platform/darwin/qdarwinpermissionplugin_location.mm b/src/corelib/platform/darwin/qdarwinpermissionplugin_location.mm
index b812d4d3..3676ba09 100644
--- a/src/corelib/platform/darwin/qdarwinpermissionplugin_location.mm
+++ b/src/corelib/platform/darwin/qdarwinpermissionplugin_location.mm
@@ -101,7 +101,7 @@ struct PermissionRequest
             return self.manager.authorizationStatus;
     }
 
-    return CLLocationManager.authorizationStatus;
+    return QT_IGNORE_DEPRECATIONS(CLLocationManager.authorizationStatus);
 }
 
 - (Qt::PermissionStatus)accuracyAuthorization:(QLocationPermission)permission
diff --git a/src/corelib/platform/wasm/qstdweb.cpp b/src/corelib/platform/wasm/qstdweb.cpp
index cae15d07..a00a5148 100644
--- a/src/corelib/platform/wasm/qstdweb.cpp
+++ b/src/corelib/platform/wasm/qstdweb.cpp
@@ -437,7 +437,7 @@ private:
                     break;
                 }
                 QString a;
-                const QString data = QString::fromStdString(webDataTransfer.call<std::string>(
+                const QString data = QString::fromEcmaString(webDataTransfer.call<emscripten::val>(
                         "getData", emscripten::val(itemMimeType.toStdString())));
 
                 if (!data.isEmpty()) {
@@ -623,17 +623,20 @@ void FileReader::readAsArrayBuffer(const Blob &blob) const
 
 void FileReader::onLoad(const std::function<void(emscripten::val)> &onLoad)
 {
-    m_onLoad.reset(new EventCallback(m_fileReader, "load", onLoad));
+    m_onLoad.reset();
+    m_onLoad = std::make_unique<EventCallback>(m_fileReader, "load", onLoad);
 }
 
 void FileReader::onError(const std::function<void(emscripten::val)> &onError)
 {
-    m_onError.reset(new EventCallback(m_fileReader, "error", onError));
+    m_onError.reset();
+    m_onError = std::make_unique<EventCallback>(m_fileReader, "error", onError);
 }
 
 void FileReader::onAbort(const std::function<void(emscripten::val)> &onAbort)
 {
-    m_onAbort.reset(new EventCallback(m_fileReader, "abort", onAbort));
+    m_onAbort.reset();
+    m_onAbort = std::make_unique<EventCallback>(m_fileReader, "abort", onAbort);
 }
 
 emscripten::val FileReader::val()
@@ -765,6 +768,8 @@ EventCallback::EventCallback(emscripten::val element, const std::string &name, c
     ,m_eventName(name)
     ,m_fn(fn)
 {
+    Q_ASSERT_X(m_element[contextPropertyName(m_eventName)].isUndefined(), Q_FUNC_INFO,
+               "Only one event callback of type currently supported with EventCallback");
     m_element.set(contextPropertyName(m_eventName).c_str(), emscripten::val(intptr_t(this)));
     m_element.set((std::string("on") + m_eventName).c_str(), emscripten::val::module_property("qtStdWebEventCallbackActivate"));
 }
diff --git a/src/corelib/platform/wasm/qstdweb_p.h b/src/corelib/platform/wasm/qstdweb_p.h
index 2f154180..1b832319 100644
--- a/src/corelib/platform/wasm/qstdweb_p.h
+++ b/src/corelib/platform/wasm/qstdweb_p.h
@@ -208,7 +208,7 @@ namespace qstdweb {
     {
     };
 
-    std::shared_ptr<CancellationFlag>
+    Q_CORE_EXPORT std::shared_ptr<CancellationFlag>
     readDataTransfer(emscripten::val webObject, std::function<QVariant(QByteArray)> imageReader,
                      std::function<void(std::unique_ptr<QMimeData>)> onDone);
 }
diff --git a/src/corelib/plugin/qfactoryloader.cpp b/src/corelib/plugin/qfactoryloader.cpp
index 52f6f440..f555cb80 100644
--- a/src/corelib/plugin/qfactoryloader.cpp
+++ b/src/corelib/plugin/qfactoryloader.cpp
@@ -161,7 +161,7 @@ inline void QFactoryLoaderPrivate::updateSinglePath(const QString &path)
 
     while (plugins.hasNext()) {
         QString fileName = plugins.next();
-#ifdef Q_OS_MAC
+#ifdef Q_OS_DARWIN
         const bool isDebugPlugin = fileName.endsWith("_debug.dylib"_L1);
         const bool isDebugLibrary =
             #ifdef QT_DEBUG
@@ -266,7 +266,7 @@ QFactoryLoader::~QFactoryLoader()
     }
 }
 
-#if defined(Q_OS_UNIX) && !defined (Q_OS_MAC)
+#if defined(Q_OS_UNIX) && !defined (Q_OS_DARWIN)
 QLibraryPrivate *QFactoryLoader::library(const QString &key) const
 {
     Q_D(const QFactoryLoader);
diff --git a/src/corelib/plugin/qfactoryloader_p.h b/src/corelib/plugin/qfactoryloader_p.h
index 0c8f9777..fcfb4cf5 100644
--- a/src/corelib/plugin/qfactoryloader_p.h
+++ b/src/corelib/plugin/qfactoryloader_p.h
@@ -74,9 +74,9 @@ public:
     void update();
     static void refreshAll();
 
-#if defined(Q_OS_UNIX) && !defined (Q_OS_MAC)
+#if defined(Q_OS_UNIX) && !defined (Q_OS_DARWIN)
     QLibraryPrivate *library(const QString &key) const;
-#endif // Q_OS_UNIX && !Q_OS_MAC
+#endif // Q_OS_UNIX && !Q_OS_DARWIN
 #endif // QT_CONFIG(library)
 
     void setExtraSearchPath(const QString &path);
diff --git a/src/corelib/plugin/qlibrary.cpp b/src/corelib/plugin/qlibrary.cpp
index 7ce35dca..12ae0c2e 100644
--- a/src/corelib/plugin/qlibrary.cpp
+++ b/src/corelib/plugin/qlibrary.cpp
@@ -16,7 +16,7 @@
 #include <qoperatingsystemversion.h>
 #include <qstringlist.h>
 
-#ifdef Q_OS_MAC
+#ifdef Q_OS_DARWIN
 #  include <private/qcore_mac_p.h>
 #endif
 #include <private/qcoreapplication_p.h>
@@ -712,7 +712,7 @@ void QLibraryPrivate::updatePluginState()
 
     bool success = false;
 
-#if defined(Q_OS_UNIX) && !defined(Q_OS_MAC)
+#if defined(Q_OS_UNIX) && !defined(Q_OS_DARWIN)
     if (fileName.endsWith(".debug"_L1)) {
         // refuse to load a file that ends in .debug
         // these are the debug symbols from the libraries
@@ -836,13 +836,17 @@ bool QLibrary::unload()
 }
 
 /*!
-    Returns \c true if the library is loaded; otherwise returns \c false.
+    Returns \c true if load() succeeded; otherwise returns \c false.
+
+    \note Prior to Qt 6.6, this function would return \c true even without a
+    call to load() if another QLibrary object on the same library had caused it
+    to be loaded.
 
     \sa load()
  */
 bool QLibrary::isLoaded() const
 {
-    return d && d->pHnd.loadRelaxed();
+    return d.tag() == Loaded;
 }
 
 
@@ -979,8 +983,7 @@ void QLibrary::setFileNameAndVersion(const QString &fileName, const QString &ver
         d->release();
     }
     QLibraryPrivate *dd = QLibraryPrivate::findOrCreate(fileName, version, lh);
-    d = dd;
-    d.setTag(isLoaded() ? Loaded : NotLoaded);
+    d = QTaggedPointer(dd, NotLoaded);      // we haven't load()ed
 }
 
 /*!
diff --git a/src/corelib/plugin/qlibrary_unix.cpp b/src/corelib/plugin/qlibrary_unix.cpp
index 657c8d79..84f572a0 100644
--- a/src/corelib/plugin/qlibrary_unix.cpp
+++ b/src/corelib/plugin/qlibrary_unix.cpp
@@ -12,7 +12,7 @@
 
 #include <dlfcn.h>
 
-#ifdef Q_OS_MAC
+#ifdef Q_OS_DARWIN
 #  include <private/qcore_mac_p.h>
 #endif
 
@@ -72,7 +72,7 @@ QStringList QLibraryPrivate::suffixes_sys(const QString &fullVersion)
 # endif
     }
 #endif
-# ifdef Q_OS_MAC
+# ifdef Q_OS_DARWIN
     if (!fullVersion.isEmpty()) {
         suffixes << ".%1.bundle"_L1.arg(fullVersion);
         suffixes << ".%1.dylib"_L1.arg(fullVersion);
@@ -233,7 +233,7 @@ bool QLibraryPrivate::load_sys()
         }
     }
 
-#ifdef Q_OS_MAC
+#ifdef Q_OS_DARWIN
     if (!hnd) {
         QByteArray utf8Bundle = fileName.toUtf8();
         QCFType<CFURLRef> bundleUrl = CFURLCreateFromFileSystemRepresentation(NULL, reinterpret_cast<const UInt8*>(utf8Bundle.data()), utf8Bundle.length(), true);
@@ -285,7 +285,7 @@ Q_CORE_EXPORT QFunctionPointer qt_linux_find_symbol_sys(const char *symbol)
 }
 #endif
 
-#ifdef Q_OS_MAC
+#ifdef Q_OS_DARWIN
 Q_CORE_EXPORT QFunctionPointer qt_mac_resolve_sys(void *handle, const char *symbol)
 {
     return QFunctionPointer(dlsym(handle, symbol));
diff --git a/src/corelib/plugin/qplugin.h b/src/corelib/plugin/qplugin.h
index 30f5cbb9..909c8acd 100644
--- a/src/corelib/plugin/qplugin.h
+++ b/src/corelib/plugin/qplugin.h
@@ -127,7 +127,7 @@ void Q_CORE_EXPORT qRegisterStaticPluginFunction(QStaticPlugin staticPlugin);
 #if defined(Q_OF_ELF) || (defined(Q_OS_WIN) && (defined (Q_CC_GNU) || defined(Q_CC_CLANG)))
 #  define QT_PLUGIN_METADATA_SECTION \
     __attribute__ ((section (".qtmetadata"))) __attribute__((used))
-#elif defined(Q_OS_MAC)
+#elif defined(Q_OS_DARWIN)
 #  define QT_PLUGIN_METADATA_SECTION \
     __attribute__ ((section ("__TEXT,qtmetadata"))) __attribute__((used))
 #elif defined(Q_CC_MSVC)
diff --git a/src/corelib/plugin/quuid.cpp b/src/corelib/plugin/quuid.cpp
index 8613f96c..1e263a44 100644
--- a/src/corelib/plugin/quuid.cpp
+++ b/src/corelib/plugin/quuid.cpp
@@ -13,6 +13,9 @@
 
 QT_BEGIN_NAMESPACE
 
+// ensure QList of this is efficient
+static_assert(QTypeInfo<QUuid::Id128Bytes>::isRelocatable);
+
 // 16 bytes (a uint, two shorts and a uchar[8]), each represented by two hex
 // digits; plus four dashes and a pair of enclosing brace: 16*2 + 4 + 2 = 38.
 enum { MaxStringUuidLength = 38 };
@@ -286,6 +289,125 @@ static QUuid createFromName(const QUuid &ns, const QByteArray &baseData, QCrypto
                             cannot parse this back again as input.
 */
 
+/*!
+    \class QUuid::Id128Bytes
+    \inmodule QtCore
+    \since 6.6
+
+    This trivial structure is 128 bits (16 bytes) in size and holds the binary
+    representation of a UUID. Applications can \c{memcpy()} its contents to and
+    from many other libraries' UUID or GUID structures that take 128-bit
+    values.
+*/
+
+/*!
+    \fn QUuid::Id128Bytes qFromBigEndian(QUuid::Id128Bytes src)
+    \since 6.6
+    \relates QUuid::Id128Bytes
+    \overload
+
+    Converts \a src from big-endian byte order and returns the struct holding
+    the binary representation of UUID in host byte order.
+
+    \sa <QtEndian>
+*/
+
+/*!
+    \fn QUuid::Id128Bytes qFromLittleEndian(QUuid::Id128Bytes src)
+    \since 6.6
+    \relates QUuid::Id128Bytes
+    \overload
+
+    Converts \a src from little-endian byte order and returns the struct holding
+    the binary representation of UUID in host byte order.
+
+    \sa <QtEndian>
+*/
+
+/*!
+    \fn QUuid::Id128Bytes qToBigEndian(QUuid::Id128Bytes src)
+    \since 6.6
+    \relates QUuid::Id128Bytes
+    \overload
+
+    Converts \a src from host byte order and returns the struct holding the
+    binary representation of UUID in big-endian byte order.
+
+    \sa <QtEndian>
+*/
+
+/*!
+    \fn QUuid::Id128Bytes qToLittleEndian(QUuid::Id128Bytes src)
+    \since 6.6
+    \relates QUuid::Id128Bytes
+    \overload
+
+    Converts \a src from host byte order and returns the struct holding the
+    binary representation of UUID in little-endian byte order.
+
+    \sa <QtEndian>
+*/
+
+/*!
+    \fn QUuid::QUuid(Id128Bytes id128, QSysInfo::Endian order) noexcept
+    \since 6.6
+
+    Creates a QUuid based on the integral \a id128 parameter. The input
+    \a id128 parameter is considered to have byte order \a order.
+
+    \sa fromBytes(), toBytes(), toRfc4122(), toUInt128()
+*/
+
+/*!
+    \fn QUuid::fromUInt128(quint128 uuid, QSysInfo::Endian order) noexcept
+    \since 6.6
+
+    Creates a QUuid based on the integral \a uuid parameter. The input \a uuid
+    parameter is considered to have byte order \a order.
+
+    \note This function is only present on platforms that offer a 128-bit
+    integer type.
+
+    \sa toUInt128(), fromBytes(), toBytes(), toRfc4122()
+*/
+
+/*!
+    \fn quint128 QUuid::toUInt128(QSysInfo::Endian order) const noexcept
+    \since 6.6
+
+    Returns a 128-bit integer created from this QUuid on the byte order
+    specified by \a order. The binary content of this function is the same as
+    toRfc4122() if the order is QSysInfo::BigEndian. See that function for more
+    details.
+
+    \note This function is only present on platforms that offer a 128-bit
+    integer type.
+
+    \sa toRfc4122(), fromUInt128(), toBytes(), fromBytes(), QUuid()
+*/
+
+/*!
+    \fn QUuid::Id128Bytes QUuid::toBytes(QSysInfo::Endian order) const noexcept
+    \since 6.6
+
+    Returns a 128-bit ID created from this QUuid on the byte order specified
+    by \a order. The binary content of this function is the same as toRfc4122()
+    if the order is QSysInfo::BigEndian. See that function for more details.
+
+    \sa toRfc4122(), fromBytes(), QUuid()
+*/
+
+/*!
+    \fn QUuid QUuid::fromBytes(const void *bytes, QSysInfo::Endian order) noexcept
+    \since 6.6
+
+    Reads 128 bits (16 bytes) from \a bytes using byte order \a order and
+    returns the QUuid corresponding to those bytes. This function does the same
+    as fromRfc4122() if the byte order \a order is QSysInfo::BigEndian.
+
+    \sa fromRfc4122()
+*/
+
 /*!
     \fn QUuid::QUuid(const GUID &guid)
 
@@ -468,32 +590,13 @@ QUuid QUuid::createUuidV5(const QUuid &ns, const QByteArray &baseData)
 
     \since 4.8
 
-    \sa toRfc4122(), QUuid()
+    \sa toRfc4122(), QUuid(), fromBytes()
 */
 QUuid QUuid::fromRfc4122(QByteArrayView bytes) noexcept
 {
     if (bytes.isEmpty() || bytes.size() != 16)
         return QUuid();
-
-    uint d1;
-    ushort d2, d3;
-    uchar d4[8];
-
-    const uchar *data = reinterpret_cast<const uchar *>(bytes.data());
-
-    d1 = qFromBigEndian<quint32>(data);
-    data += sizeof(quint32);
-    d2 = qFromBigEndian<quint16>(data);
-    data += sizeof(quint16);
-    d3 = qFromBigEndian<quint16>(data);
-    data += sizeof(quint16);
-
-    for (int i = 0; i < 8; ++i) {
-        d4[i] = *(data);
-        data++;
-    }
-
-    return QUuid(d1, d2, d3, d4[0], d4[1], d4[2], d4[3], d4[4], d4[5], d4[6], d4[7]);
+    return fromBytes(bytes.data());
 }
 
 /*!
@@ -623,27 +726,16 @@ QByteArray QUuid::toByteArray(QUuid::StringFormat mode) const
 
     \endtable
 
+    The bytes in the byte array returned by this function contains the same
+    binary content as toBytes().
+
+    \sa toBytes()
     \since 4.8
 */
 QByteArray QUuid::toRfc4122() const
 {
-    // we know how many bytes a UUID has, I hope :)
-    QByteArray bytes(16, Qt::Uninitialized);
-    uchar *data = reinterpret_cast<uchar *>(bytes.data());
-
-    qToBigEndian(data1, data);
-    data += sizeof(quint32);
-    qToBigEndian(data2, data);
-    data += sizeof(quint16);
-    qToBigEndian(data3, data);
-    data += sizeof(quint16);
-
-    for (int i = 0; i < 8; ++i) {
-        *(data) = data4[i];
-        data++;
-    }
-
-    return bytes;
+    Id128Bytes bytes = toBytes();
+    return QByteArrayView(bytes).toByteArray();
 }
 
 #ifndef QT_NO_DATASTREAM
@@ -661,6 +753,9 @@ QDataStream &operator<<(QDataStream &s, const QUuid &id)
         bytes = QByteArray(16, Qt::Uninitialized);
         uchar *data = reinterpret_cast<uchar *>(bytes.data());
 
+        // for historical reasons, our little-endian serialization format
+        // stores each of the UUID fields in little endian, instead of storing
+        // a little endian Id128
         qToLittleEndian(id.data1, data);
         data += sizeof(quint32);
         qToLittleEndian(id.data2, data);
diff --git a/src/corelib/plugin/quuid.h b/src/corelib/plugin/quuid.h
index 64aa891b..a62651b1 100644
--- a/src/corelib/plugin/quuid.h
+++ b/src/corelib/plugin/quuid.h
@@ -4,6 +4,7 @@
 #ifndef QUUID_H
 #define QUUID_H
 
+#include <QtCore/qendian.h>
 #include <QtCore/qstring.h>
 
 #if defined(Q_OS_WIN) || defined(Q_QDOC)
@@ -26,7 +27,6 @@ Q_FORWARD_DECLARE_OBJC_CLASS(NSUUID);
 
 QT_BEGIN_NAMESPACE
 
-
 class Q_CORE_EXPORT QUuid
 {
     QUuid(Qt::Initialization) {}
@@ -55,11 +55,37 @@ public:
         Id128           = 3
     };
 
+    union alignas(16) Id128Bytes {
+        quint8 data[16];
+        quint16 data16[8];
+        quint32 data32[4];
+        quint64 data64[2];
+#ifdef QT_SUPPORTS_INT128
+        quint128 data128[1];
+#endif
+
+        constexpr explicit operator QByteArrayView() const noexcept
+        {
+            return QByteArrayView(data, sizeof(data));
+        }
+
+        friend constexpr Id128Bytes qbswap(Id128Bytes b) noexcept
+        {
+            // 128-bit byte swap
+            auto b0 = qbswap(b.data64[0]);
+            auto b1 = qbswap(b.data64[1]);
+            b.data64[0] = b1;
+            b.data64[1] = b0;
+            return b;
+        }
+    };
+
     constexpr QUuid() noexcept : data1(0), data2(0), data3(0), data4{0,0,0,0,0,0,0,0} {}
 
     constexpr QUuid(uint l, ushort w1, ushort w2, uchar b1, uchar b2, uchar b3,
                            uchar b4, uchar b5, uchar b6, uchar b7, uchar b8) noexcept
         : data1(l), data2(w1), data3(w2), data4{b1, b2, b3, b4, b5, b6, b7, b8} {}
+    explicit inline QUuid(Id128Bytes id128, QSysInfo::Endian order = QSysInfo::BigEndian) noexcept;
 
     explicit QUuid(QAnyStringView string) noexcept
         : QUuid{fromString(string)} {}
@@ -73,13 +99,22 @@ public:
 #endif
     QString toString(StringFormat mode = WithBraces) const;
     QByteArray toByteArray(StringFormat mode = WithBraces) const;
+    inline Id128Bytes toBytes(QSysInfo::Endian order = QSysInfo::BigEndian) const noexcept;
     QByteArray toRfc4122() const;
+
+    static inline QUuid fromBytes(const void *bytes, QSysInfo::Endian order = QSysInfo::BigEndian);
 #if QT_CORE_REMOVED_SINCE(6, 3)
     static QUuid fromRfc4122(const QByteArray &);
 #endif
     static QUuid fromRfc4122(QByteArrayView) noexcept;
+
     bool isNull() const noexcept;
 
+#ifdef QT_SUPPORTS_INT128
+    static constexpr QUuid fromUInt128(quint128 uuid, QSysInfo::Endian order = QSysInfo::BigEndian) noexcept;
+    constexpr quint128 toUInt128(QSysInfo::Endian order = QSysInfo::BigEndian) const noexcept;
+#endif
+
     constexpr bool operator==(const QUuid &orig) const noexcept
     {
         if (data1 != orig.data1 || data2 != orig.data2 ||
@@ -177,11 +212,92 @@ Q_CORE_EXPORT QDebug operator<<(QDebug, const QUuid &);
 
 Q_CORE_EXPORT size_t qHash(const QUuid &uuid, size_t seed = 0) noexcept;
 
+QUuid::QUuid(Id128Bytes uuid, QSysInfo::Endian order) noexcept
+{
+    if (order == QSysInfo::LittleEndian)
+        uuid = qbswap(uuid);
+    data1 = qFromBigEndian<quint32>(&uuid.data[0]);
+    data2 = qFromBigEndian<quint16>(&uuid.data[4]);
+    data3 = qFromBigEndian<quint16>(&uuid.data[6]);
+    memcpy(data4, &uuid.data[8], sizeof(data4));
+}
+
+QUuid::Id128Bytes QUuid::toBytes(QSysInfo::Endian order) const noexcept
+{
+    Id128Bytes result = {};
+    qToBigEndian(data1, &result.data[0]);
+    qToBigEndian(data2, &result.data[4]);
+    qToBigEndian(data3, &result.data[6]);
+    memcpy(&result.data[8], data4, sizeof(data4));
+    if (order == QSysInfo::LittleEndian)
+        return qbswap(result);
+    return result;
+}
+
+QUuid QUuid::fromBytes(const void *bytes, QSysInfo::Endian order)
+{
+    Id128Bytes result = {};
+    memcpy(result.data, bytes, sizeof(result));
+    return QUuid(result, order);
+}
+
+#ifdef QT_SUPPORTS_INT128
+constexpr QUuid QUuid::fromUInt128(quint128 uuid, QSysInfo::Endian order) noexcept
+{
+    QUuid result = {};
+    if (order == QSysInfo::BigEndian) {
+        result.data1 = qFromBigEndian<quint32>(int(uuid));
+        result.data2 = qFromBigEndian<quint16>(ushort(uuid >> 32));
+        result.data3 = qFromBigEndian<quint16>(ushort(uuid >> 48));
+        for (int i = 0; i < 8; ++i)
+            result.data4[i] = uchar(uuid >> (64 + i * 8));
+    } else {
+        result.data1 = qFromLittleEndian<quint32>(uint(uuid >> 96));
+        result.data2 = qFromLittleEndian<quint16>(ushort(uuid >> 80));
+        result.data3 = qFromLittleEndian<quint16>(ushort(uuid >> 64));
+        for (int i = 0; i < 8; ++i)
+            result.data4[i] = uchar(uuid >> (56 - i * 8));
+    }
+    return result;
+}
+
+constexpr quint128 QUuid::toUInt128(QSysInfo::Endian order) const noexcept
+{
+    quint128 result = {};
+    if (order == QSysInfo::BigEndian) {
+        for (int i = 0; i < 8; ++i)
+            result |= quint64(data4[i]) << (i * 8);
+        result = result << 64;
+        result |= quint64(qToBigEndian<quint16>(data3)) << 48;
+        result |= quint64(qToBigEndian<quint16>(data2)) << 32;
+        result |= qToBigEndian<quint32>(data1);
+    } else {
+        result = qToLittleEndian<quint32>(data1);
+        result = result << 32;
+        result |= quint64(qToLittleEndian<quint16>(data2)) << 16;
+        result |= quint64(qToLittleEndian<quint16>(data3));
+        result = result << 64;
+        for (int i = 0; i < 8; ++i)
+            result |= quint64(data4[i]) << (56 - i * 8);
+    }
+    return result;
+}
+#endif
+
 inline bool operator<=(const QUuid &lhs, const QUuid &rhs) noexcept
 { return !(rhs < lhs); }
 inline bool operator>=(const QUuid &lhs, const QUuid &rhs) noexcept
 { return !(lhs < rhs); }
 
+#if defined(Q_QDOC)
+// provide fake declarations of qXXXEndian() functions, so that qDoc could
+// distinguish them from the general template
+QUuid::Id128Bytes qFromBigEndian(QUuid::Id128Bytes src);
+QUuid::Id128Bytes qFromLittleEndian(QUuid::Id128Bytes src);
+QUuid::Id128Bytes qToBigEndian(QUuid::Id128Bytes src);
+QUuid::Id128Bytes qToLittleEndian(QUuid::Id128Bytes src);
+#endif
+
 QT_END_NAMESPACE
 
 #endif // QUUID_H
diff --git a/src/corelib/serialization/qcborvalue.cpp b/src/corelib/serialization/qcborvalue.cpp
index 337af3a8..a1c56dfc 100644
--- a/src/corelib/serialization/qcborvalue.cpp
+++ b/src/corelib/serialization/qcborvalue.cpp
@@ -404,7 +404,7 @@ Q_DECL_UNUSED static constexpr quint64 MaximumPreallocatedElementCount =
 /*!
     \fn QCborValue::QCborValue(QCborSimpleType st)
 
-    Creates a QCborValue of simple type \a st. The type can later later be retrieved
+    Creates a QCborValue of simple type \a st. The type can later be retrieved
     using toSimpleType() as well as isSimpleType(st).
 
     CBOR simple types are types that do not have any associated value, like
diff --git a/src/corelib/serialization/qdatastream.cpp b/src/corelib/serialization/qdatastream.cpp
index dd5d678c..c47c9089 100644
--- a/src/corelib/serialization/qdatastream.cpp
+++ b/src/corelib/serialization/qdatastream.cpp
@@ -525,6 +525,7 @@ void QDataStream::setByteOrder(ByteOrder bo)
     \value Qt_6_3 Same as Qt_6_0
     \value Qt_6_4 Same as Qt_6_0
     \value Qt_6_5 Same as Qt_6_0
+    \value Qt_6_6 Same as Qt_6_0
     \omitvalue Qt_DefaultCompiledVersion
 
     \sa setVersion(), version()
diff --git a/src/corelib/serialization/qdatastream.h b/src/corelib/serialization/qdatastream.h
index 8d89e4bb..9e35328d 100644
--- a/src/corelib/serialization/qdatastream.h
+++ b/src/corelib/serialization/qdatastream.h
@@ -68,8 +68,9 @@ public:
         Qt_6_3 = Qt_6_0,
         Qt_6_4 = Qt_6_0,
         Qt_6_5 = Qt_6_0,
-        Qt_DefaultCompiledVersion = Qt_6_5
-#if QT_VERSION >= QT_VERSION_CHECK(6, 6, 0)
+        Qt_6_6 = 21,
+        Qt_DefaultCompiledVersion = Qt_6_6
+#if QT_VERSION >= QT_VERSION_CHECK(6, 7, 0)
 #error Add the datastream version for this Qt version and update Qt_DefaultCompiledVersion
 #endif
     };
diff --git a/src/corelib/serialization/qjsonparser.cpp b/src/corelib/serialization/qjsonparser.cpp
index d2938d65..8d866398 100644
--- a/src/corelib/serialization/qjsonparser.cpp
+++ b/src/corelib/serialization/qjsonparser.cpp
@@ -780,15 +780,13 @@ bool Parser::parseNumber()
 static inline bool addHexDigit(char digit, char32_t *result)
 {
     *result <<= 4;
-    if (digit >= '0' && digit <= '9')
-        *result |= (digit - '0');
-    else if (digit >= 'a' && digit <= 'f')
-        *result |= (digit - 'a') + 10;
-    else if (digit >= 'A' && digit <= 'F')
-        *result |= (digit - 'A') + 10;
-    else
-        return false;
-    return true;
+    const int h = fromHex(digit);
+    if (h != -1) {
+        *result |= h;
+        return true;
+    }
+
+    return false;
 }
 
 static inline bool scanEscapeSequence(const char *&json, const char *end, char32_t *ch)
diff --git a/src/corelib/serialization/qjsonwriter.cpp b/src/corelib/serialization/qjsonwriter.cpp
index 56c75142..c9da553a 100644
--- a/src/corelib/serialization/qjsonwriter.cpp
+++ b/src/corelib/serialization/qjsonwriter.cpp
@@ -22,23 +22,24 @@ static inline uchar hexdig(uint u)
     return (u < 0xa ? '0' + u : 'a' + u - 0xa);
 }
 
-static QByteArray escapedString(const QString &s)
+static QByteArray escapedString(QStringView s)
 {
     // give it a minimum size to ensure the resize() below always adds enough space
     QByteArray ba(qMax(s.size(), 16), Qt::Uninitialized);
 
+    auto ba_const_start = [&]() { return reinterpret_cast<const uchar *>(ba.constData()); };
     uchar *cursor = reinterpret_cast<uchar *>(const_cast<char *>(ba.constData()));
     const uchar *ba_end = cursor + ba.size();
-    const char16_t *src = reinterpret_cast<const char16_t *>(s.constBegin());
-    const char16_t *const end = reinterpret_cast<const char16_t *>(s.constEnd());
+    const char16_t *src = s.utf16();
+    const char16_t *const end = s.utf16() + s.size();
 
     while (src != end) {
         if (cursor >= ba_end - 6) {
             // ensure we have enough space
-            qptrdiff pos = cursor - (const uchar *)ba.constData();
+            qptrdiff pos = cursor - ba_const_start();
             ba.resize(ba.size()*2);
-            cursor = (uchar *)ba.data() + pos;
-            ba_end = (const uchar *)ba.constData() + ba.size();
+            cursor = reinterpret_cast<uchar *>(ba.data()) + pos;
+            ba_end = ba_const_start() + ba.size();
         }
 
         char16_t u = *src++;
@@ -88,7 +89,7 @@ static QByteArray escapedString(const QString &s)
         }
     }
 
-    ba.resize(cursor - (const uchar *)ba.constData());
+    ba.resize(cursor - ba_const_start());
     return ba;
 }
 
diff --git a/src/corelib/serialization/qtextstream.cpp b/src/corelib/serialization/qtextstream.cpp
index 10ecd4ea..96dac022 100644
--- a/src/corelib/serialization/qtextstream.cpp
+++ b/src/corelib/serialization/qtextstream.cpp
@@ -1752,13 +1752,10 @@ QTextStreamPrivate::NumberParsingStatus QTextStreamPrivate::getNumber(qulonglong
         // Parse digits
         int ndigits = 0;
         while (getChar(&dig)) {
-            int n = dig.toLower().unicode();
-            if (n >= '0' && n <= '9') {
+            const int h = fromHex(dig.unicode());
+            if (h != -1) {
                 val <<= 4;
-                val += n - '0';
-            } else if (n >= 'a' && n <= 'f') {
-                val <<= 4;
-                val += 10 + (n - 'a');
+                val += h;
             } else {
                 ungetChar(dig);
                 break;
diff --git a/src/corelib/serialization/qtextstream.h b/src/corelib/serialization/qtextstream.h
index e1768789..7a0fc42a 100644
--- a/src/corelib/serialization/qtextstream.h
+++ b/src/corelib/serialization/qtextstream.h
@@ -11,6 +11,11 @@
 
 #include <stdio.h>
 
+#if 0
+// the macros around the class name throw off syncqt:
+#pragma qt_class(QTextStream)
+#endif
+
 #ifdef Status
 #error qtextstream.h must be included before any header file that defines Status
 #endif
@@ -21,8 +26,18 @@ class QIODevice;
 class QLocale;
 class QString;
 
+#if !QT_DEPRECATED_SINCE(6, 9)
+# define QT_NO_INHERITABLE_TEXT_STREAM
+#endif
+
+#ifdef QT_NO_INHERITABLE_TEXT_STREAM
+#  define QT_TEXT_STREAM_FINAL final
+#else
+#  define QT_TEXT_STREAM_FINAL
+#endif
+
 class QTextStreamPrivate;
-class Q_CORE_EXPORT QTextStream : public QIODeviceBase
+class Q_CORE_EXPORT QTextStream QT_TEXT_STREAM_FINAL : public QIODeviceBase
 {
     Q_DECLARE_PRIVATE(QTextStream)
 
@@ -59,7 +74,8 @@ public:
     explicit QTextStream(QString *string, OpenMode openMode = ReadWrite);
     explicit QTextStream(QByteArray *array, OpenMode openMode = ReadWrite);
     explicit QTextStream(const QByteArray &array, OpenMode openMode = ReadOnly);
-    virtual ~QTextStream();
+    QT6_ONLY(virtual)
+    ~QTextStream();
 
     void setEncoding(QStringConverter::Encoding encoding);
     QStringConverter::Encoding encoding() const;
diff --git a/src/corelib/serialization/qxmlstream.cpp b/src/corelib/serialization/qxmlstream.cpp
index 9b595000..8cd6da10 100644
--- a/src/corelib/serialization/qxmlstream.cpp
+++ b/src/corelib/serialization/qxmlstream.cpp
@@ -3,7 +3,7 @@
 
 #include "QtCore/qxmlstream.h"
 
-#ifndef QT_NO_XMLSTREAM
+#if QT_CONFIG(xmlstream)
 
 #include "qxmlutils_p.h"
 #include <qdebug.h>
@@ -140,7 +140,7 @@ WRAP(indexOf, QLatin1StringView)
     \value DTD The reader reports a DTD in text(), notation
     declarations in notationDeclarations(), and entity declarations in
     entityDeclarations(). Details of the DTD declaration are reported
-    in in dtdName(), dtdPublicId(), and dtdSystemId().
+    in dtdName(), dtdPublicId(), and dtdSystemId().
 
     \value EntityReference The reader reports an entity reference that
     could not be resolved.  The name of the reference is reported in
@@ -232,7 +232,7 @@ QString QXmlStreamEntityResolver::resolveUndeclaredEntity(const QString &/*name*
     return QString();
 }
 
-#ifndef QT_NO_XMLSTREAMREADER
+#if QT_CONFIG(xmlstreamreader)
 
 QString QXmlStreamReaderPrivate::resolveUndeclaredEntity(const QString &name)
 {
@@ -813,7 +813,7 @@ static constexpr QLatin1StringView contextString(QXmlStreamReaderPrivate::XmlCon
     return QLatin1StringView(QXmlStreamReader_XmlContextString.at(static_cast<int>(ctxt)));
 }
 
-#endif // QT_NO_XMLSTREAMREADER
+#endif // feature xmlstreamreader
 
 QXmlStreamPrivateTagStack::QXmlStreamPrivateTagStack()
 {
@@ -827,7 +827,7 @@ QXmlStreamPrivateTagStack::QXmlStreamPrivateTagStack()
     tagsDone = false;
 }
 
-#ifndef QT_NO_XMLSTREAMREADER
+#if QT_CONFIG(xmlstreamreader)
 
 QXmlStreamReaderPrivate::QXmlStreamReaderPrivate(QXmlStreamReader *q)
     :q_ptr(q)
@@ -2320,7 +2320,7 @@ QXmlStreamAttributes QXmlStreamReader::attributes() const
     return d->attributes;
 }
 
-#endif // QT_NO_XMLSTREAMREADER
+#endif // feature xmlstreamreader
 
 /*!
     \class QXmlStreamAttribute
@@ -2623,37 +2623,11 @@ Returns the entity's value.
 /*!  Returns the value of the attribute \a name in the namespace
   described with \a namespaceUri, or an empty string reference if the
   attribute is not defined. The \a namespaceUri can be empty.
- */
-QStringView QXmlStreamAttributes::value(const QString &namespaceUri, const QString &name) const
-{
-    for (const QXmlStreamAttribute &attribute : *this) {
-        if (attribute.name() == name && attribute.namespaceUri() == namespaceUri)
-            return attribute.value();
-    }
-    return QStringView();
-}
 
-/*!\overload
-  Returns the value of the attribute \a name in the namespace
-  described with \a namespaceUri, or an empty string reference if the
-  attribute is not defined. The \a namespaceUri can be empty.
+  \note In Qt versions prior to 6.6, this function was implemented as an
+  overload set accepting combinations of QString and QLatin1StringView only.
  */
-QStringView QXmlStreamAttributes::value(const QString &namespaceUri, QLatin1StringView name) const
-{
-    for (const QXmlStreamAttribute &attribute : *this) {
-        if (attribute.name() == name && attribute.namespaceUri() == namespaceUri)
-            return attribute.value();
-    }
-    return QStringView();
-}
-
-/*!\overload
-  Returns the value of the attribute \a name in the namespace
-  described with \a namespaceUri, or an empty string reference if the
-  attribute is not defined. The \a namespaceUri can be empty.
- */
-QStringView QXmlStreamAttributes::value(QLatin1StringView namespaceUri,
-                                        QLatin1StringView name) const
+QStringView QXmlStreamAttributes::value(QAnyStringView namespaceUri, QAnyStringView name) const noexcept
 {
     for (const QXmlStreamAttribute &attribute : *this) {
         if (attribute.name() == name && attribute.namespaceUri() == namespaceUri)
@@ -2673,29 +2647,12 @@ QStringView QXmlStreamAttributes::value(QLatin1StringView namespaceUri,
   different prefixes can point to the same namespace), you shouldn't
   use qualified names, but a resolved namespaceUri and the attribute's
   local name.
- */
-QStringView QXmlStreamAttributes::value(const QString &qualifiedName) const
-{
-    for (const QXmlStreamAttribute &attribute : *this) {
-        if (attribute.qualifiedName() == qualifiedName)
-            return attribute.value();
-    }
-    return QStringView();
-}
 
-/*!\overload
+  \note In Qt versions prior to 6.6, this function was implemented as an
+  overload set accepting QString and QLatin1StringView only.
 
-  Returns the value of the attribute with qualified name \a
-  qualifiedName , or an empty string reference if the attribute is not
-  defined. A qualified name is the raw name of an attribute in the XML
-  data. It consists of the namespace prefix, followed by colon,
-  followed by the attribute's local name. Since the namespace prefix
-  is not unique (the same prefix can point to different namespaces and
-  different prefixes can point to the same namespace), you shouldn't
-  use qualified names, but a resolved namespaceUri and the attribute's
-  local name.
  */
-QStringView QXmlStreamAttributes::value(QLatin1StringView qualifiedName) const
+QStringView QXmlStreamAttributes::value(QAnyStringView qualifiedName) const noexcept
 {
     for (const QXmlStreamAttribute &attribute : *this) {
         if (attribute.qualifiedName() == qualifiedName)
@@ -2722,7 +2679,7 @@ void QXmlStreamAttributes::append(const QString &qualifiedName, const QString &v
     append(QXmlStreamAttribute(qualifiedName, value));
 }
 
-#ifndef QT_NO_XMLSTREAMREADER
+#if QT_CONFIG(xmlstreamreader)
 
 /*! \fn bool QXmlStreamReader::isStartDocument() const
   Returns \c true if tokenType() equals \l StartDocument; otherwise returns \c false.
@@ -2783,6 +2740,8 @@ bool QXmlStreamReader::isCDATA() const
   XML declaration; otherwise returns \c false.
 
   If no XML declaration has been parsed, this function returns \c false.
+
+  \sa hasStandaloneDeclaration()
  */
 bool QXmlStreamReader::isStandaloneDocument() const
 {
@@ -2790,6 +2749,21 @@ bool QXmlStreamReader::isStandaloneDocument() const
     return d->standalone;
 }
 
+/*!
+  \since 6.6
+
+  Returns \c true if this document has an explicit standalone
+  declaration (can be 'yes' or 'no'); otherwise returns \c false;
+
+  If no XML declaration has been parsed, this function returns \c false.
+
+  \sa isStandaloneDocument()
+ */
+bool QXmlStreamReader::hasStandaloneDeclaration() const
+{
+    Q_D(const QXmlStreamReader);
+    return d->hasStandalone;
+}
 
 /*!
      \since 4.4
@@ -2821,7 +2795,7 @@ QStringView QXmlStreamReader::documentEncoding() const
    return QStringView();
 }
 
-#endif // QT_NO_XMLSTREAMREADER
+#endif // feature xmlstreamreader
 
 /*!
   \class QXmlStreamWriter
@@ -2898,9 +2872,10 @@ QStringView QXmlStreamReader::documentEncoding() const
 
 */
 
-#ifndef QT_NO_XMLSTREAMWRITER
+#if QT_CONFIG(xmlstreamwriter)
 
-class QXmlStreamWriterPrivate : public QXmlStreamPrivateTagStack {
+class QXmlStreamWriterPrivate : public QXmlStreamPrivateTagStack
+{
     QXmlStreamWriter *q_ptr;
     Q_DECLARE_PUBLIC(QXmlStreamWriter)
 public:
@@ -2924,7 +2899,7 @@ public:
     uint hasIoError :1;
     uint hasEncodingError :1;
     uint autoFormatting :1;
-    QByteArray autoFormattingIndent;
+    std::string autoFormattingIndent;
     NamespaceDeclaration emptyNamespace;
     qsizetype lastNamespaceDeclaration;
 
@@ -3284,13 +3259,14 @@ bool QXmlStreamWriter::autoFormatting() const
 void QXmlStreamWriter::setAutoFormattingIndent(int spacesOrTabs)
 {
     Q_D(QXmlStreamWriter);
-    d->autoFormattingIndent = QByteArray(qAbs(spacesOrTabs), spacesOrTabs >= 0 ? ' ' : '\t');
+    d->autoFormattingIndent.assign(size_t(qAbs(spacesOrTabs)), spacesOrTabs >= 0 ? ' ' : '\t');
 }
 
 int QXmlStreamWriter::autoFormattingIndent() const
 {
     Q_D(const QXmlStreamWriter);
-    return d->autoFormattingIndent.count(' ') - d->autoFormattingIndent.count('\t');
+    const QLatin1StringView indent(d->autoFormattingIndent);
+    return indent.count(u' ') - indent.count(u'\t');
 }
 
 /*!
@@ -3819,7 +3795,7 @@ void QXmlStreamWriterPrivate::writeStartElement(QAnyStringView namespaceUri, QAn
     tag.namespaceDeclarationsSize = lastNamespaceDeclaration;
 }
 
-#ifndef QT_NO_XMLSTREAMREADER
+#if QT_CONFIG(xmlstreamreader)
 /*!  Writes the current state of the \a reader. All possible valid
   states are supported.
 
@@ -3877,7 +3853,7 @@ void QXmlStreamWriter::writeCurrentToken(const QXmlStreamReader &reader)
 }
 
 static constexpr bool isTokenAllowedInContext(QXmlStreamReader::TokenType type,
-                                              QXmlStreamReaderPrivate::XmlContext ctxt)
+                                               QXmlStreamReaderPrivate::XmlContext ctxt)
 {
     switch (type) {
     case QXmlStreamReader::StartDocument:
@@ -3991,9 +3967,9 @@ void QXmlStreamReaderPrivate::checkToken()
  otherwise returns \c false.
 */
 
-#endif // QT_NO_XMLSTREAMREADER
-#endif // QT_NO_XMLSTREAMWRITER
+#endif // feature xmlstreamreader
+#endif // feature xmlstreamwriter
 
 QT_END_NAMESPACE
 
-#endif // QT_NO_XMLSTREAM
+#endif // feature xmlstream
diff --git a/src/corelib/serialization/qxmlstream.g b/src/corelib/serialization/qxmlstream.g
index fc122e66..36df37b1 100644
--- a/src/corelib/serialization/qxmlstream.g
+++ b/src/corelib/serialization/qxmlstream.g
@@ -58,7 +58,7 @@
 %token PCDATA "PCDATA"
 
 -- error
-%token ERROR
+%token XML_ERROR
 
 -- entities
 %token PARSE_ENTITY
@@ -149,7 +149,7 @@
 
 QT_BEGIN_NAMESPACE
 
-#ifndef QT_NO_XMLSTREAMREADER
+#if QT_CONFIG(xmlstreamreader)
 
 bool QXmlStreamReaderPrivate::parse()
 {
@@ -251,7 +251,7 @@ bool QXmlStreamReaderPrivate::parse()
             } else switch (token_char) {
             case 0xfffe:
             case 0xffff:
-                token = ERROR;
+                token = XML_ERROR;
                 break;
             case '\r':
                 token = SPACE;
@@ -1487,7 +1487,7 @@ nmtoken ::= COLON;
     return false;
 }
 
-#endif
+#endif // feature xmlstreamreader
 
 QT_END_NAMESPACE
 
diff --git a/src/corelib/serialization/qxmlstream.h b/src/corelib/serialization/qxmlstream.h
index fffb9b68..e6dd2511 100644
--- a/src/corelib/serialization/qxmlstream.h
+++ b/src/corelib/serialization/qxmlstream.h
@@ -6,7 +6,7 @@
 
 #include <QtCore/qiodevice.h>
 
-#ifndef QT_NO_XMLSTREAM
+#if QT_CONFIG(xmlstream)
 
 #include <QtCore/qlist.h>
 #include <QtCore/qscopedpointer.h>
@@ -75,25 +75,25 @@ class QXmlStreamAttributes : public QList<QXmlStreamAttribute>
 {
 public:
     inline QXmlStreamAttributes() {}
+#if QT_CORE_REMOVED_SINCE(6, 6)
     Q_CORE_EXPORT QStringView value(const QString &namespaceUri, const QString &name) const;
     Q_CORE_EXPORT QStringView value(const QString &namespaceUri, QLatin1StringView name) const;
     Q_CORE_EXPORT QStringView value(QLatin1StringView namespaceUri, QLatin1StringView name) const;
     Q_CORE_EXPORT QStringView value(const QString &qualifiedName) const;
     Q_CORE_EXPORT QStringView value(QLatin1StringView qualifiedName) const;
+#endif
+    Q_CORE_EXPORT QStringView value(QAnyStringView namespaceUri, QAnyStringView name) const noexcept;
+    Q_CORE_EXPORT QStringView value(QAnyStringView qualifiedName) const noexcept;
+
     Q_CORE_EXPORT void append(const QString &namespaceUri, const QString &name, const QString &value);
     Q_CORE_EXPORT void append(const QString &qualifiedName, const QString &value);
 
-    inline bool hasAttribute(const QString &qualifiedName) const
+    bool hasAttribute(QAnyStringView qualifiedName) const
     {
         return !value(qualifiedName).isNull();
     }
 
-    inline bool hasAttribute(QLatin1StringView qualifiedName) const
-    {
-        return !value(qualifiedName).isNull();
-    }
-
-    inline bool hasAttribute(const QString &namespaceUri, const QString &name) const
+    bool hasAttribute(QAnyStringView namespaceUri, QAnyStringView name) const
     {
         return !value(namespaceUri, name).isNull();
     }
@@ -176,8 +176,9 @@ public:
     virtual QString resolveUndeclaredEntity(const QString &name);
 };
 
-#ifndef QT_NO_XMLSTREAMREADER
-class Q_CORE_EXPORT QXmlStreamReader {
+#if QT_CONFIG(xmlstreamreader)
+class Q_CORE_EXPORT QXmlStreamReader
+{
     QDOC_PROPERTY(bool namespaceProcessing READ namespaceProcessing WRITE setNamespaceProcessing)
 public:
     enum TokenType {
@@ -246,6 +247,7 @@ public:
     inline bool isProcessingInstruction() const { return tokenType() == ProcessingInstruction; }
 
     bool isStandaloneDocument() const;
+    bool hasStandaloneDeclaration() const;
     QStringView documentVersion() const;
     QStringView documentEncoding() const;
 
@@ -313,9 +315,9 @@ private:
     QScopedPointer<QXmlStreamReaderPrivate> d_ptr;
 
 };
-#endif // QT_NO_XMLSTREAMREADER
+#endif // feature xmlstreamreader
 
-#ifndef QT_NO_XMLSTREAMWRITER
+#if QT_CONFIG(xmlstreamwriter)
 
 class QXmlStreamWriterPrivate;
 
@@ -401,7 +403,7 @@ public:
     void writeStartElement(QAnyStringView qualifiedName);
     void writeStartElement(QAnyStringView namespaceUri, QAnyStringView name);
 
-#ifndef QT_NO_XMLSTREAMREADER
+#if QT_CONFIG(xmlstreamreader)
     void writeCurrentToken(const QXmlStreamReader &reader);
 #endif
 
@@ -412,9 +414,10 @@ private:
     Q_DECLARE_PRIVATE(QXmlStreamWriter)
     QScopedPointer<QXmlStreamWriterPrivate> d_ptr;
 };
-#endif // QT_NO_XMLSTREAMWRITER
+#endif // feature xmlstreamwriter
 
 QT_END_NAMESPACE
 
-#endif // QT_NO_XMLSTREAM
+#endif // feature xmlstream
+
 #endif // QXMLSTREAM_H
diff --git a/src/corelib/serialization/qxmlstream_p.h b/src/corelib/serialization/qxmlstream_p.h
index f09adaa3..a29ee656 100644
--- a/src/corelib/serialization/qxmlstream_p.h
+++ b/src/corelib/serialization/qxmlstream_p.h
@@ -523,8 +523,6 @@ public:
 
     QXmlStreamEntityResolver *entityResolver;
 
-    static QXmlStreamReaderPrivate *get(QXmlStreamReader *q) { return q->d_func(); }
-
 private:
     /*! \internal
        Never assign to variable type directly. Instead use this function.
diff --git a/src/corelib/serialization/qxmlstreamgrammar_p.h b/src/corelib/serialization/qxmlstreamgrammar_p.h
index 0ad32327..80ee8e92 100644
--- a/src/corelib/serialization/qxmlstreamgrammar_p.h
+++ b/src/corelib/serialization/qxmlstreamgrammar_p.h
@@ -44,7 +44,6 @@ public:
         ENTITY = 32,
         ENTITY_DONE = 45,
         EQ = 14,
-        XML_ERROR = 43,
         FIXED = 39,
         HASH = 6,
         ID = 48,
@@ -81,6 +80,7 @@ public:
         UNRESOLVED_ENTITY = 46,
         VERSION = 55,
         XML = 54,
+        XML_ERROR = 43,
 
         ACCEPT_STATE = 416,
         RULE_COUNT = 270,
diff --git a/src/corelib/serialization/qxmlstreamparser_p.h b/src/corelib/serialization/qxmlstreamparser_p.h
index ae3ebe7a..1363bf4d 100644
--- a/src/corelib/serialization/qxmlstreamparser_p.h
+++ b/src/corelib/serialization/qxmlstreamparser_p.h
@@ -38,7 +38,7 @@
 
 QT_BEGIN_NAMESPACE
 
-#ifndef QT_NO_XMLSTREAMREADER
+#if QT_CONFIG(xmlstreamreader)
 
 bool QXmlStreamReaderPrivate::parse()
 {
@@ -998,7 +998,7 @@ bool QXmlStreamReaderPrivate::parse()
     return false;
 }
 
-#endif
+#endif // feature xmlstreamreader
 
 QT_END_NAMESPACE
 
diff --git a/src/corelib/serialization/qxmlutils.cpp b/src/corelib/serialization/qxmlutils.cpp
index 00a11212..e6fae7c1 100644
--- a/src/corelib/serialization/qxmlutils.cpp
+++ b/src/corelib/serialization/qxmlutils.cpp
@@ -48,7 +48,7 @@ bool QXmlUtils::rangeContains(RangeIter begin, RangeIter end, const QChar c)
         return cp >= begin->min;
 
     while (begin != end) {
-        int delta = (end - begin) / 2;
+        qptrdiff delta = (end - begin) / 2;
         RangeIter mid = begin + delta;
 
         if (mid->min > cp)
diff --git a/src/corelib/text/qanystringview.h b/src/corelib/text/qanystringview.h
index 93a084fc..4be8910c 100644
--- a/src/corelib/text/qanystringview.h
+++ b/src/corelib/text/qanystringview.h
@@ -4,6 +4,7 @@
 #ifndef QANYSTRINGVIEW_H
 #define QANYSTRINGVIEW_H
 
+#include <QtCore/qlatin1stringview.h>
 #include <QtCore/qstringview.h>
 #include <QtCore/qutf8stringview.h>
 
diff --git a/src/corelib/text/qbytearray.cpp b/src/corelib/text/qbytearray.cpp
index 8faa130d..267d8a33 100644
--- a/src/corelib/text/qbytearray.cpp
+++ b/src/corelib/text/qbytearray.cpp
@@ -34,8 +34,6 @@
 
 #include <algorithm>
 
-#define IS_RAW_DATA(d) ((d)->flags() & QArrayData::RawDataType)
-
 QT_BEGIN_NAMESPACE
 
 Q_CONSTINIT const char QByteArray::_empty = '\0';
@@ -133,16 +131,9 @@ char *qstrcpy(char *dst, const char *src)
 char *qstrncpy(char *dst, const char *src, size_t len)
 {
     if (dst && len > 0) {
-        if (!src) {
-            *dst = '\0';
-            return nullptr;
-        }
-#ifdef Q_CC_MSVC
-        strncpy_s(dst, len, src, len - 1);
-#else
-        strncpy(dst, src, len);
-#endif
-        dst[len-1] = '\0';
+        *dst = '\0';
+        if (src)
+            std::strncat(dst, src, len - 1);
     }
     return src ? dst : nullptr;
 }
@@ -2113,6 +2104,73 @@ QByteArray& QByteArray::append(char ch)
     return *this;
 }
 
+/*!
+    \fn QByteArray &QByteArray::assign(QByteArrayView v)
+    \since 6.6
+
+    Replaces the contents of this byte array with a copy of \a v and returns a
+    reference to this byte array.
+
+    The size of this byte array will be equal to the size of \a v.
+
+    This function only allocates memory if the size of \a v exceeds the capacity
+    of this byte array or this byte array is shared.
+*/
+
+/*!
+    \fn QByteArray &QByteArray::assign(qsizetype n, char c)
+    \since 6.6
+
+    Replaces the contents of this byte array with \a n copies of \a c and
+    returns a reference to this byte array.
+
+    The size of this byte array will be equal to \a n, which has to be non-negative.
+
+    This function will only allocate memory if \a n exceeds the capacity of this
+    byte array or this byte array is shared.
+
+    \sa fill()
+*/
+
+/*!
+    \fn template <typename InputIterator, if_input_iterator<InputIterator>> QByteArray &QByteArray::assign(InputIterator first, InputIterator last)
+    \since 6.6
+
+    Replaces the contents of this byte array with a copy of the elements in the
+    iterator range [\a first, \a last) and returns a reference to this
+    byte array.
+
+    The size of this byte array will be equal to the number of elements in the
+    range [\a first, \a last).
+
+    This function will only allocate memory if the number of elements in the
+    range exceeds the capacity of this byte array or this byte array is shared.
+
+    \note This function overload only participates in overload resolution if
+    \c InputIterator meets the requirements of a
+    \l {https://en.cppreference.com/w/cpp/named_req/InputIterator} {LegacyInputIterator}.
+
+    \note The behavior is undefined if either argument is an iterator into *this or
+    [\a first, \a last) is not a valid range.
+*/
+
+QByteArray &QByteArray::assign(QByteArrayView v)
+{
+    const auto len = v.size();
+
+    if (len <= capacity() &&  isDetached()) {
+        const auto offset = d.freeSpaceAtBegin();
+        if (offset)
+            d.setBegin(d.begin() - offset);
+        std::memcpy(d.begin(), v.data(), len);
+        d.size = len;
+        d.data()[d.size] = '\0';
+    } else {
+        *this = v.toByteArray();
+    }
+    return *this;
+}
+
 /*!
     Inserts \a data at index position \a i and returns a
     reference to this byte array.
@@ -5152,5 +5210,4 @@ size_t qHash(const QByteArray::FromBase64Result &key, size_t seed) noexcept
 
 QT_END_NAMESPACE
 
-#undef IS_RAW_DATA
 #undef REHASH
diff --git a/src/corelib/text/qbytearray.h b/src/corelib/text/qbytearray.h
index c7b96589..3b99ef78 100644
--- a/src/corelib/text/qbytearray.h
+++ b/src/corelib/text/qbytearray.h
@@ -40,6 +40,8 @@ namespace emscripten {
 }
 #endif
 
+class tst_QByteArray;
+
 QT_BEGIN_NAMESPACE
 
 class QString;
@@ -60,6 +62,11 @@ private:
 
     DataPointer d;
     static const char _empty;
+
+    friend class ::tst_QByteArray;
+
+    template <typename InputIterator>
+    using if_input_iterator = QtPrivate::IfIsInputIterator<InputIterator>;
 public:
 
     enum Base64Option {
@@ -227,6 +234,20 @@ public:
     QByteArray &append(QByteArrayView a)
     { return insert(size(), a); }
 
+    QByteArray &assign(QByteArrayView v);
+    QByteArray &assign(qsizetype n, char c)
+    {
+        Q_ASSERT(n >= 0);
+        return fill(c, n);
+    }
+    template <typename InputIterator, if_input_iterator<InputIterator> = true>
+    QByteArray &assign(InputIterator first, InputIterator last)
+    {
+        d.assign(first, last);
+        d.data()[d.size] = '\0';
+        return *this;
+    }
+
     QByteArray &insert(qsizetype i, QByteArrayView data);
     inline QByteArray &insert(qsizetype i, const char *s)
     { return insert(i, QByteArrayView(s)); }
@@ -247,7 +268,7 @@ public:
     template <typename Predicate>
     QByteArray &removeIf(Predicate pred)
     {
-        QtPrivate::sequential_erase_if(*this, pred);
+        removeIf_helper(pred);
         return *this;
     }
 
@@ -478,9 +499,20 @@ private:
     static QByteArray trimmed_helper(QByteArray &a);
     static QByteArray simplified_helper(const QByteArray &a);
     static QByteArray simplified_helper(QByteArray &a);
+    template <typename Predicate>
+    qsizetype removeIf_helper(Predicate pred)
+    {
+        const qsizetype result = d->eraseIf(pred);
+        if (result > 0)
+            d.data()[d.size] = '\0';
+        return result;
+    }
 
     friend class QString;
     friend Q_CORE_EXPORT QByteArray qUncompress(const uchar *data, qsizetype nbytes);
+
+    template <typename T> friend qsizetype erase(QByteArray &ba, const T &t);
+    template <typename Predicate> friend qsizetype erase_if(QByteArray &ba, Predicate pred);
 };
 
 Q_DECLARE_OPERATORS_FOR_FLAGS(QByteArray::Base64Options)
@@ -662,13 +694,13 @@ Q_CORE_EXPORT Q_DECL_PURE_FUNCTION size_t qHash(const QByteArray::FromBase64Resu
 template <typename T>
 qsizetype erase(QByteArray &ba, const T &t)
 {
-    return QtPrivate::sequential_erase(ba, t);
+    return ba.removeIf_helper([&t](const auto &e) { return t == e; });
 }
 
 template <typename Predicate>
 qsizetype erase_if(QByteArray &ba, Predicate pred)
 {
-    return QtPrivate::sequential_erase_if(ba, pred);
+    return ba.removeIf_helper(pred);
 }
 
 //
@@ -683,7 +715,7 @@ namespace Qt {
 inline namespace Literals {
 inline namespace StringLiterals {
 
-inline QByteArray operator"" _ba(const char *str, size_t size) noexcept
+inline QByteArray operator""_ba(const char *str, size_t size) noexcept
 {
     return QByteArray(QByteArrayData(nullptr, const_cast<char *>(str), qsizetype(size)));
 }
@@ -696,7 +728,7 @@ inline namespace QtLiterals {
 #if QT_DEPRECATED_SINCE(6, 8)
 
 QT_DEPRECATED_VERSION_X_6_8("Use _ba from Qt::StringLiterals namespace instead.")
-inline QByteArray operator"" _qba(const char *str, size_t size) noexcept
+inline QByteArray operator""_qba(const char *str, size_t size) noexcept
 {
     return Qt::StringLiterals::operator""_ba(str, size);
 }
diff --git a/src/corelib/text/qbytearrayview.qdoc b/src/corelib/text/qbytearrayview.qdoc
index 6afcba1e..48013f86 100644
--- a/src/corelib/text/qbytearrayview.qdoc
+++ b/src/corelib/text/qbytearrayview.qdoc
@@ -278,7 +278,7 @@
     The container's data must remain valid for the lifetime of this byte array view object.
 
     This constructor participates in overload resolution if \a c is any contiguous
-    container container with elements of a compatible byte type.
+    container with elements of a compatible byte type.
 
     \sa {Compatible Byte Types}
 */
diff --git a/src/corelib/text/qchar.h b/src/corelib/text/qchar.h
index e9f0cf33..30a15f96 100644
--- a/src/corelib/text/qchar.h
+++ b/src/corelib/text/qchar.h
@@ -627,7 +627,7 @@ namespace Qt {
 inline namespace Literals {
 inline namespace StringLiterals {
 
-constexpr inline QLatin1Char operator"" _L1(char ch) noexcept
+constexpr inline QLatin1Char operator""_L1(char ch) noexcept
 {
     return QLatin1Char(ch);
 }
diff --git a/src/corelib/text/qcollator.cpp b/src/corelib/text/qcollator.cpp
index d753a054..3e17f8cc 100644
--- a/src/corelib/text/qcollator.cpp
+++ b/src/corelib/text/qcollator.cpp
@@ -57,9 +57,25 @@ Q_GLOBAL_STATIC(QThreadStorage<GenerationalCollator>, defaultCollator)
     In addition to the locale, several optional flags can be set that influence
     the result of the collation.
 
-    \note On Linux, Qt is normally compiled to use ICU. When it isn't, all
-    options are ignored and the only supported locales are the system default
-    (that \c{setlocale(LC_COLLATE, nullptr)} would report) and the "C" locale.
+    \section1 POSIX fallback implementation
+
+    On Unix systems, Qt is normally compiled to use ICU (except for \macos,
+    where Qt defaults to using an equivalent Apple API). However, if ICU was
+    not available at compile time or explicitly disabled, Qt will use a
+    fallback backend that uses the POSIX API only. This backend has several
+    limitations:
+
+    \list
+      \li Only the QLocale::c() and QLocale::system() locales are supported.
+          Consult the POSIX and C Standard Library manuals for the
+          \c{<locale.h>} header for more information on the system locale.
+      \li caseSensitivity() is not supported: only case-sensitive collation
+          can be performed.
+      \li numericMode() and ignorePunctuation() are not supported.
+    \endlist
+
+    The use of any of the unsupported options will cause a warning to be
+    printed to the application's output.
 */
 
 /*!
diff --git a/src/corelib/text/qcollator_posix.cpp b/src/corelib/text/qcollator_posix.cpp
index 54c70001..5ed80c1b 100644
--- a/src/corelib/text/qcollator_posix.cpp
+++ b/src/corelib/text/qcollator_posix.cpp
@@ -69,13 +69,19 @@ QCollatorSortKey QCollator::sortKey(const QString &string) const
     if (d->isC()) {
         std::copy(original.cbegin(), original.cend(), result.begin());
     } else {
-        size_t size = std::wcsxfrm(result.data(), original.constData(), string.size());
-        if (size > size_t(result.size())) {
-            result.resize(size+1);
-            size = std::wcsxfrm(result.data(), original.constData(), string.size());
+        auto availableSizeIncludingNullTerminator = result.size();
+        size_t neededSizeExcludingNullTerminator = std::wcsxfrm(
+                result.data(), original.constData(), availableSizeIncludingNullTerminator);
+        if (neededSizeExcludingNullTerminator > size_t(availableSizeIncludingNullTerminator - 1)) {
+            result.resize(neededSizeExcludingNullTerminator + 1);
+            availableSizeIncludingNullTerminator = result.size();
+            neededSizeExcludingNullTerminator = std::wcsxfrm(result.data(), original.constData(),
+                                                             availableSizeIncludingNullTerminator);
+            Q_ASSERT(neededSizeExcludingNullTerminator
+                     == size_t(availableSizeIncludingNullTerminator - 1));
         }
-        result.resize(size+1);
-        result[size] = 0;
+        result.resize(neededSizeExcludingNullTerminator + 1);
+        result[neededSizeExcludingNullTerminator] = 0;
     }
     return QCollatorSortKey(new QCollatorSortKeyPrivate(std::move(result)));
 }
diff --git a/src/corelib/text/qlatin1stringmatcher.h b/src/corelib/text/qlatin1stringmatcher.h
index a256250e..3b8c24fc 100644
--- a/src/corelib/text/qlatin1stringmatcher.h
+++ b/src/corelib/text/qlatin1stringmatcher.h
@@ -98,6 +98,18 @@ struct QCaseInsensitiveLatin1Hash
         return std::size_t(latin1Lower[uchar(c)]);
     }
 
+    static int difference(char lhs, char rhs)
+    {
+        return int(latin1Lower[uchar(lhs)]) - int(latin1Lower[uchar(rhs)]);
+    }
+
+    static auto matcher(char ch)
+    {
+        return [sought = latin1Lower[uchar(ch)]](char other) {
+            return latin1Lower[uchar(other)] == sought;
+        };
+    }
+
 private:
     static constexpr uchar latin1Lower[256] = {
         0x00,0x01,0x02,0x03,0x04,0x05,0x06,0x07,0x08,0x09,0x0a,0x0b,0x0c,0x0d,0x0e,0x0f,
diff --git a/src/corelib/text/qlatin1stringview.h b/src/corelib/text/qlatin1stringview.h
new file mode 100644
index 00000000..4a7bf357
--- /dev/null
+++ b/src/corelib/text/qlatin1stringview.h
@@ -0,0 +1,370 @@
+// Copyright (C) 2020 The Qt Company Ltd.
+// Copyright (C) 2019 Intel Corporation.
+// Copyright (C) 2019 Mail.ru Group.
+// Copyright (C) 2020 Klarälvdalens Datakonsult AB, a KDAB Group company, info@kdab.com, author Marc Mutz <marc.mutz@kdab.com>
+// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
+
+#ifndef QLATIN1STRINGVIEW_H
+#define QLATIN1STRINGVIEW_H
+
+#include <QtCore/qchar.h>
+#include <QtCore/qnamespace.h>
+#include <QtCore/qtversionchecks.h>
+#include <QtCore/qstringview.h>
+
+#if 0
+// Workaround for generating forward headers
+#pragma qt_class(QLatin1String)
+#pragma qt_class(QLatin1StringView)
+#endif
+
+QT_BEGIN_NAMESPACE
+
+class QString;
+
+#if QT_VERSION >= QT_VERSION_CHECK(7, 0, 0) || defined(QT_BOOTSTRAPPED) || defined(Q_QDOC)
+#    define Q_L1S_VIEW_IS_PRIMARY
+class QLatin1StringView
+#else
+class QLatin1String
+#endif
+{
+public:
+#ifdef Q_L1S_VIEW_IS_PRIMARY
+    constexpr QLatin1StringView() noexcept {}
+    constexpr QLatin1StringView(std::nullptr_t) noexcept : QLatin1StringView() {}
+    constexpr explicit QLatin1StringView(const char *s) noexcept
+        : QLatin1StringView(s, s ? qsizetype(QtPrivate::lengthHelperPointer(s)) : 0) {}
+    constexpr QLatin1StringView(const char *f, const char *l)
+        : QLatin1StringView(f, qsizetype(l - f)) {}
+    constexpr QLatin1StringView(const char *s, qsizetype sz) noexcept : m_data(s), m_size(sz) {}
+    explicit QLatin1StringView(const QByteArray &s) noexcept
+        : QLatin1StringView(s.constData(), s.size()) {}
+    constexpr explicit QLatin1StringView(QByteArrayView s) noexcept
+        : QLatin1StringView(s.constData(), s.size()) {}
+#else
+    constexpr QLatin1String() noexcept : m_size(0), m_data(nullptr) {}
+    Q_WEAK_OVERLOAD
+    constexpr QLatin1String(std::nullptr_t) noexcept : QLatin1String() {}
+    constexpr explicit QLatin1String(const char *s) noexcept
+        : m_size(s ? qsizetype(QtPrivate::lengthHelperPointer(s)) : 0), m_data(s) {}
+    constexpr QLatin1String(const char *f, const char *l)
+        : QLatin1String(f, qsizetype(l - f)) {}
+    constexpr QLatin1String(const char *s, qsizetype sz) noexcept : m_size(sz), m_data(s) {}
+    explicit QLatin1String(const QByteArray &s) noexcept : m_size(s.size()), m_data(s.constData()) {}
+    constexpr explicit QLatin1String(QByteArrayView s) noexcept : m_size(s.size()), m_data(s.data()) {}
+#endif // !Q_L1S_VIEW_IS_PRIMARY
+
+    inline QString toString() const;
+
+    constexpr const char *latin1() const noexcept { return m_data; }
+    constexpr qsizetype size() const noexcept { return m_size; }
+    constexpr const char *data() const noexcept { return m_data; }
+    [[nodiscard]] constexpr const char *constData() const noexcept { return data(); }
+    [[nodiscard]] constexpr const char *constBegin() const noexcept { return begin(); }
+    [[nodiscard]] constexpr const char *constEnd() const noexcept { return end(); }
+
+    [[nodiscard]] constexpr QLatin1Char first() const { return front(); }
+    [[nodiscard]] constexpr QLatin1Char last() const { return back(); }
+
+    [[nodiscard]] constexpr qsizetype length() const noexcept { return size(); }
+
+    constexpr bool isNull() const noexcept { return !data(); }
+    constexpr bool isEmpty() const noexcept { return !size(); }
+
+    [[nodiscard]] constexpr bool empty() const noexcept { return size() == 0; }
+
+    template <typename...Args>
+    [[nodiscard]] inline QString arg(Args &&...args) const;
+
+    [[nodiscard]] constexpr QLatin1Char at(qsizetype i) const
+    {
+        Q_ASSERT(i >= 0);
+        Q_ASSERT(i < size());
+        return QLatin1Char(m_data[i]);
+    }
+    [[nodiscard]] constexpr QLatin1Char operator[](qsizetype i) const { return at(i); }
+
+    [[nodiscard]] constexpr QLatin1Char front() const { return at(0); }
+    [[nodiscard]] constexpr QLatin1Char back() const { return at(size() - 1); }
+
+    [[nodiscard]] int compare(QStringView other, Qt::CaseSensitivity cs = Qt::CaseSensitive) const noexcept
+    { return QtPrivate::compareStrings(*this, other, cs); }
+    [[nodiscard]] int compare(QLatin1StringView other, Qt::CaseSensitivity cs = Qt::CaseSensitive) const noexcept
+    { return QtPrivate::compareStrings(*this, other, cs); }
+    [[nodiscard]] inline int compare(QUtf8StringView other, Qt::CaseSensitivity cs = Qt::CaseSensitive) const noexcept;
+    [[nodiscard]] constexpr int compare(QChar c) const noexcept
+    { return isEmpty() ? -1 : front() == c ? int(size() > 1) : uchar(m_data[0]) - c.unicode(); }
+    [[nodiscard]] int compare(QChar c, Qt::CaseSensitivity cs) const noexcept
+    { return QtPrivate::compareStrings(*this, QStringView(&c, 1), cs); }
+
+    [[nodiscard]] bool startsWith(QStringView s, Qt::CaseSensitivity cs = Qt::CaseSensitive) const noexcept
+    { return QtPrivate::startsWith(*this, s, cs); }
+    [[nodiscard]] bool startsWith(QLatin1StringView s, Qt::CaseSensitivity cs = Qt::CaseSensitive) const noexcept
+    { return QtPrivate::startsWith(*this, s, cs); }
+    [[nodiscard]] constexpr bool startsWith(QChar c) const noexcept
+    { return !isEmpty() && front() == c; }
+    [[nodiscard]] bool startsWith(QChar c, Qt::CaseSensitivity cs) const noexcept
+    { return QtPrivate::startsWith(*this, QStringView(&c, 1), cs); }
+
+    [[nodiscard]] bool endsWith(QStringView s, Qt::CaseSensitivity cs = Qt::CaseSensitive) const noexcept
+    { return QtPrivate::endsWith(*this, s, cs); }
+    [[nodiscard]] bool endsWith(QLatin1StringView s, Qt::CaseSensitivity cs = Qt::CaseSensitive) const noexcept
+    { return QtPrivate::endsWith(*this, s, cs); }
+    [[nodiscard]] constexpr bool endsWith(QChar c) const noexcept
+    { return !isEmpty() && back() == c; }
+    [[nodiscard]] bool endsWith(QChar c, Qt::CaseSensitivity cs) const noexcept
+    { return QtPrivate::endsWith(*this, QStringView(&c, 1), cs); }
+
+    [[nodiscard]] qsizetype indexOf(QStringView s, qsizetype from = 0, Qt::CaseSensitivity cs = Qt::CaseSensitive) const noexcept
+    { return QtPrivate::findString(*this, from, s, cs); }
+    [[nodiscard]] qsizetype indexOf(QLatin1StringView s, qsizetype from = 0, Qt::CaseSensitivity cs = Qt::CaseSensitive) const noexcept
+    { return QtPrivate::findString(*this, from, s, cs); }
+    [[nodiscard]] qsizetype indexOf(QChar c, qsizetype from = 0, Qt::CaseSensitivity cs = Qt::CaseSensitive) const noexcept
+    { return QtPrivate::findString(*this, from, QStringView(&c, 1), cs); }
+
+    [[nodiscard]] bool contains(QStringView s, Qt::CaseSensitivity cs = Qt::CaseSensitive) const noexcept
+    { return indexOf(s, 0, cs) != -1; }
+    [[nodiscard]] bool contains(QLatin1StringView s, Qt::CaseSensitivity cs = Qt::CaseSensitive) const noexcept
+    { return indexOf(s, 0, cs) != -1; }
+    [[nodiscard]] bool contains(QChar c, Qt::CaseSensitivity cs = Qt::CaseSensitive) const noexcept
+    { return indexOf(QStringView(&c, 1), 0, cs) != -1; }
+
+    [[nodiscard]] qsizetype lastIndexOf(QStringView s, Qt::CaseSensitivity cs = Qt::CaseSensitive) const noexcept
+    { return lastIndexOf(s, size(), cs); }
+    [[nodiscard]] qsizetype lastIndexOf(QStringView s, qsizetype from, Qt::CaseSensitivity cs = Qt::CaseSensitive) const noexcept
+    { return QtPrivate::lastIndexOf(*this, from, s, cs); }
+    [[nodiscard]] qsizetype lastIndexOf(QLatin1StringView s, Qt::CaseSensitivity cs = Qt::CaseSensitive) const noexcept
+    { return lastIndexOf(s, size(), cs); }
+    [[nodiscard]] qsizetype lastIndexOf(QLatin1StringView s, qsizetype from, Qt::CaseSensitivity cs = Qt::CaseSensitive) const noexcept
+    { return QtPrivate::lastIndexOf(*this, from, s, cs); }
+    [[nodiscard]] qsizetype lastIndexOf(QChar c, Qt::CaseSensitivity cs = Qt::CaseSensitive) const noexcept
+    { return lastIndexOf(c, -1, cs); }
+    [[nodiscard]] qsizetype lastIndexOf(QChar c, qsizetype from, Qt::CaseSensitivity cs = Qt::CaseSensitive) const noexcept
+    { return QtPrivate::lastIndexOf(*this, from, QStringView(&c, 1), cs); }
+
+    [[nodiscard]] qsizetype count(QStringView str, Qt::CaseSensitivity cs = Qt::CaseSensitive) const
+    { return QtPrivate::count(*this, str, cs); }
+    [[nodiscard]] qsizetype count(QLatin1StringView str, Qt::CaseSensitivity cs = Qt::CaseSensitive) const
+    { return QtPrivate::count(*this, str, cs); }
+    [[nodiscard]] qsizetype count(QChar ch, Qt::CaseSensitivity cs = Qt::CaseSensitive) const noexcept
+    { return QtPrivate::count(*this, ch, cs); }
+
+    [[nodiscard]] short toShort(bool *ok = nullptr, int base = 10) const
+    { return QtPrivate::toIntegral<short>(QByteArrayView(*this), ok, base); }
+    [[nodiscard]] ushort toUShort(bool *ok = nullptr, int base = 10) const
+    { return QtPrivate::toIntegral<ushort>(QByteArrayView(*this), ok, base); }
+    [[nodiscard]] int toInt(bool *ok = nullptr, int base = 10) const
+    { return QtPrivate::toIntegral<int>(QByteArrayView(*this), ok, base); }
+    [[nodiscard]] uint toUInt(bool *ok = nullptr, int base = 10) const
+    { return QtPrivate::toIntegral<uint>(QByteArrayView(*this), ok, base); }
+    [[nodiscard]] long toLong(bool *ok = nullptr, int base = 10) const
+    { return QtPrivate::toIntegral<long>(QByteArrayView(*this), ok, base); }
+    [[nodiscard]] ulong toULong(bool *ok = nullptr, int base = 10) const
+    { return QtPrivate::toIntegral<ulong>(QByteArrayView(*this), ok, base); }
+    [[nodiscard]] qlonglong toLongLong(bool *ok = nullptr, int base = 10) const
+    { return QtPrivate::toIntegral<qlonglong>(QByteArrayView(*this), ok, base); }
+    [[nodiscard]] qulonglong toULongLong(bool *ok = nullptr, int base = 10) const
+    { return QtPrivate::toIntegral<qulonglong>(QByteArrayView(*this), ok, base); }
+    [[nodiscard]] float toFloat(bool *ok = nullptr) const
+    {
+        const auto r = QtPrivate::toFloat(*this);
+        if (ok)
+            *ok = bool(r);
+        return r.value_or(0.0f);
+    }
+    [[nodiscard]] double toDouble(bool *ok = nullptr) const
+    {
+        const auto r = QtPrivate::toDouble(*this);
+        if (ok)
+            *ok = bool(r);
+        return r.value_or(0.0);
+    }
+
+    using value_type = const char;
+    using reference = value_type&;
+    using const_reference = reference;
+    using iterator = value_type*;
+    using const_iterator = iterator;
+    using difference_type = qsizetype; // violates Container concept requirements
+    using size_type = qsizetype;       // violates Container concept requirements
+
+    constexpr const_iterator begin() const noexcept { return data(); }
+    constexpr const_iterator cbegin() const noexcept { return data(); }
+    constexpr const_iterator end() const noexcept { return data() + size(); }
+    constexpr const_iterator cend() const noexcept { return data() + size(); }
+
+    using reverse_iterator = std::reverse_iterator<iterator>;
+    using const_reverse_iterator = reverse_iterator;
+
+    const_reverse_iterator rbegin() const noexcept { return const_reverse_iterator(end()); }
+    const_reverse_iterator crbegin() const noexcept { return const_reverse_iterator(end()); }
+    const_reverse_iterator rend() const noexcept { return const_reverse_iterator(begin()); }
+    const_reverse_iterator crend() const noexcept { return const_reverse_iterator(begin()); }
+
+    [[nodiscard]] constexpr QLatin1StringView mid(qsizetype pos, qsizetype n = -1) const
+    {
+        using namespace QtPrivate;
+        auto result = QContainerImplHelper::mid(size(), &pos, &n);
+        return result == QContainerImplHelper::Null ? QLatin1StringView()
+                                                    : QLatin1StringView(m_data + pos, n);
+    }
+    [[nodiscard]] constexpr QLatin1StringView left(qsizetype n) const
+    {
+        if (size_t(n) >= size_t(size()))
+            n = size();
+        return {m_data, n};
+    }
+    [[nodiscard]] constexpr QLatin1StringView right(qsizetype n) const
+    {
+        if (size_t(n) >= size_t(size()))
+            n = size();
+        return {m_data + m_size - n, n};
+    }
+
+    [[nodiscard]] constexpr QLatin1StringView sliced(qsizetype pos) const
+    { verify(pos); return {m_data + pos, m_size - pos}; }
+    [[nodiscard]] constexpr QLatin1StringView sliced(qsizetype pos, qsizetype n) const
+    { verify(pos, n); return {m_data + pos, n}; }
+    [[nodiscard]] constexpr QLatin1StringView first(qsizetype n) const
+    { verify(n); return {m_data, n}; }
+    [[nodiscard]] constexpr QLatin1StringView last(qsizetype n) const
+    { verify(n); return {m_data + size() - n, n}; }
+    [[nodiscard]] constexpr QLatin1StringView chopped(qsizetype n) const
+    { verify(n); return {m_data, size() - n}; }
+
+    constexpr void chop(qsizetype n)
+    { verify(n); m_size -= n; }
+    constexpr void truncate(qsizetype n)
+    { verify(n); m_size = n; }
+
+    [[nodiscard]] QLatin1StringView trimmed() const noexcept { return QtPrivate::trimmed(*this); }
+
+    template <typename Needle, typename...Flags>
+    [[nodiscard]] constexpr auto tokenize(Needle &&needle, Flags...flags) const
+        noexcept(noexcept(qTokenize(std::declval<const QLatin1StringView &>(),
+                                    std::forward<Needle>(needle), flags...)))
+            -> decltype(qTokenize(*this, std::forward<Needle>(needle), flags...))
+    { return qTokenize(*this, std::forward<Needle>(needle), flags...); }
+
+    friend bool operator==(QLatin1StringView s1, QLatin1StringView s2) noexcept
+    { return QByteArrayView(s1) == QByteArrayView(s2); }
+    friend bool operator!=(QLatin1StringView s1, QLatin1StringView s2) noexcept
+    { return !(s1 == s2); }
+    friend bool operator<(QLatin1StringView s1, QLatin1StringView s2) noexcept
+    {
+        const qsizetype len = qMin(s1.size(), s2.size());
+        const int r = len ? memcmp(s1.latin1(), s2.latin1(), len) : 0;
+        return r < 0 || (r == 0 && s1.size() < s2.size());
+    }
+    friend bool operator>(QLatin1StringView s1, QLatin1StringView s2) noexcept
+    { return s2 < s1; }
+    friend bool operator<=(QLatin1StringView s1, QLatin1StringView s2) noexcept
+    { return !(s1 > s2); }
+    friend bool operator>=(QLatin1StringView s1, QLatin1StringView s2) noexcept
+    { return !(s1 < s2); }
+
+    // QChar <> QLatin1StringView
+    friend bool operator==(QChar lhs, QLatin1StringView rhs) noexcept { return rhs.size() == 1 && lhs == rhs.front(); }
+    friend bool operator< (QChar lhs, QLatin1StringView rhs) noexcept { return compare_helper(&lhs, 1, rhs) < 0; }
+    friend bool operator> (QChar lhs, QLatin1StringView rhs) noexcept { return compare_helper(&lhs, 1, rhs) > 0; }
+    friend bool operator!=(QChar lhs, QLatin1StringView rhs) noexcept { return !(lhs == rhs); }
+    friend bool operator<=(QChar lhs, QLatin1StringView rhs) noexcept { return !(lhs >  rhs); }
+    friend bool operator>=(QChar lhs, QLatin1StringView rhs) noexcept { return !(lhs <  rhs); }
+
+    friend bool operator==(QLatin1StringView lhs, QChar rhs) noexcept { return   rhs == lhs; }
+    friend bool operator!=(QLatin1StringView lhs, QChar rhs) noexcept { return !(rhs == lhs); }
+    friend bool operator< (QLatin1StringView lhs, QChar rhs) noexcept { return   rhs >  lhs; }
+    friend bool operator> (QLatin1StringView lhs, QChar rhs) noexcept { return   rhs <  lhs; }
+    friend bool operator<=(QLatin1StringView lhs, QChar rhs) noexcept { return !(rhs <  lhs); }
+    friend bool operator>=(QLatin1StringView lhs, QChar rhs) noexcept { return !(rhs >  lhs); }
+
+    // QStringView <> QLatin1StringView
+    friend bool operator==(QStringView lhs, QLatin1StringView rhs) noexcept
+    { return lhs.size() == rhs.size() && QtPrivate::equalStrings(lhs, rhs); }
+    friend bool operator!=(QStringView lhs, QLatin1StringView rhs) noexcept { return !(lhs == rhs); }
+    friend bool operator< (QStringView lhs, QLatin1StringView rhs) noexcept { return QtPrivate::compareStrings(lhs, rhs) <  0; }
+    friend bool operator<=(QStringView lhs, QLatin1StringView rhs) noexcept { return QtPrivate::compareStrings(lhs, rhs) <= 0; }
+    friend bool operator> (QStringView lhs, QLatin1StringView rhs) noexcept { return QtPrivate::compareStrings(lhs, rhs) >  0; }
+    friend bool operator>=(QStringView lhs, QLatin1StringView rhs) noexcept { return QtPrivate::compareStrings(lhs, rhs) >= 0; }
+
+    friend bool operator==(QLatin1StringView lhs, QStringView rhs) noexcept
+    { return lhs.size() == rhs.size() && QtPrivate::equalStrings(lhs, rhs); }
+    friend bool operator!=(QLatin1StringView lhs, QStringView rhs) noexcept { return !(lhs == rhs); }
+    friend bool operator< (QLatin1StringView lhs, QStringView rhs) noexcept { return QtPrivate::compareStrings(lhs, rhs) <  0; }
+    friend bool operator<=(QLatin1StringView lhs, QStringView rhs) noexcept { return QtPrivate::compareStrings(lhs, rhs) <= 0; }
+    friend bool operator> (QLatin1StringView lhs, QStringView rhs) noexcept { return QtPrivate::compareStrings(lhs, rhs) >  0; }
+    friend bool operator>=(QLatin1StringView lhs, QStringView rhs) noexcept { return QtPrivate::compareStrings(lhs, rhs) >= 0; }
+
+
+#if !defined(QT_NO_CAST_FROM_ASCII) && !defined(QT_RESTRICTED_CAST_FROM_ASCII)
+    QT_ASCII_CAST_WARN inline bool operator==(const char *s) const;
+    QT_ASCII_CAST_WARN inline bool operator!=(const char *s) const;
+    QT_ASCII_CAST_WARN inline bool operator<(const char *s) const;
+    QT_ASCII_CAST_WARN inline bool operator>(const char *s) const;
+    QT_ASCII_CAST_WARN inline bool operator<=(const char *s) const;
+    QT_ASCII_CAST_WARN inline bool operator>=(const char *s) const;
+
+    QT_ASCII_CAST_WARN inline bool operator==(const QByteArray &s) const;
+    QT_ASCII_CAST_WARN inline bool operator!=(const QByteArray &s) const;
+    QT_ASCII_CAST_WARN inline bool operator<(const QByteArray &s) const;
+    QT_ASCII_CAST_WARN inline bool operator>(const QByteArray &s) const;
+    QT_ASCII_CAST_WARN inline bool operator<=(const QByteArray &s) const;
+    QT_ASCII_CAST_WARN inline bool operator>=(const QByteArray &s) const;
+
+    QT_ASCII_CAST_WARN friend bool operator==(const char *s1, QLatin1StringView s2) { return compare_helper(s2, s1) == 0; }
+    QT_ASCII_CAST_WARN friend bool operator!=(const char *s1, QLatin1StringView s2) { return compare_helper(s2, s1) != 0; }
+    QT_ASCII_CAST_WARN friend bool operator< (const char *s1, QLatin1StringView s2) { return compare_helper(s2, s1) >  0; }
+    QT_ASCII_CAST_WARN friend bool operator> (const char *s1, QLatin1StringView s2) { return compare_helper(s2, s1) <  0; }
+    QT_ASCII_CAST_WARN friend bool operator<=(const char *s1, QLatin1StringView s2) { return compare_helper(s2, s1) >= 0; }
+    QT_ASCII_CAST_WARN friend bool operator>=(const char *s1, QLatin1StringView s2) { return compare_helper(s2, s1) <= 0; }
+#endif // !defined(QT_NO_CAST_FROM_ASCII) && !defined(QT_RESTRICTED_CAST_FROM_ASCII)
+
+private:
+    Q_ALWAYS_INLINE constexpr void verify(qsizetype pos, qsizetype n = 0) const
+    {
+        Q_ASSERT(pos >= 0);
+        Q_ASSERT(pos <= size());
+        Q_ASSERT(n >= 0);
+        Q_ASSERT(n <= size() - pos);
+    }
+    static int compare_helper(const QLatin1StringView &s1, const char *s2) noexcept
+    { return compare_helper(s1, s2, qstrlen(s2)); }
+    Q_CORE_EXPORT static int compare_helper(const QLatin1StringView &s1, const char *s2, qsizetype len) noexcept;
+    Q_CORE_EXPORT static int compare_helper(const QChar *data1, qsizetype length1,
+                                            QLatin1StringView s2,
+                                            Qt::CaseSensitivity cs = Qt::CaseSensitive) noexcept;
+#if QT_VERSION >= QT_VERSION_CHECK(7, 0, 0) || defined(QT_BOOTSTRAPPED)
+    const char *m_data = nullptr;
+    qsizetype m_size = 0;
+#else
+    qsizetype m_size;
+    const char *m_data;
+#endif
+};
+#ifdef Q_L1S_VIEW_IS_PRIMARY
+Q_DECLARE_TYPEINFO(QLatin1StringView, Q_RELOCATABLE_TYPE);
+#else
+Q_DECLARE_TYPEINFO(QLatin1String, Q_RELOCATABLE_TYPE);
+#endif
+
+namespace Qt {
+inline namespace Literals {
+inline namespace StringLiterals {
+
+constexpr inline QLatin1StringView operator""_L1(const char *str, size_t size) noexcept
+{
+    return {str, qsizetype(size)};
+}
+
+} // StringLiterals
+} // Literals
+} // Qt
+
+QT_END_NAMESPACE
+
+#ifdef Q_L1S_VIEW_IS_PRIMARY
+#    undef Q_L1S_VIEW_IS_PRIMARY
+#endif
+
+#endif // QLATIN1STRINGVIEW_H
diff --git a/src/corelib/text/qlatin1stringview.qdoc b/src/corelib/text/qlatin1stringview.qdoc
new file mode 100644
index 00000000..3bd93122
--- /dev/null
+++ b/src/corelib/text/qlatin1stringview.qdoc
@@ -0,0 +1,1285 @@
+// Copyright (C) 2021 The Qt Company Ltd.
+// Copyright (C) 2022 Intel Corporation.
+// Copyright (C) 2019 Mail.ru Group.
+// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
+
+/*! \class QLatin1StringView
+    \inmodule QtCore
+    \brief The QLatin1StringView class provides a thin wrapper around
+    a US-ASCII/Latin-1 encoded string literal.
+
+    \ingroup string-processing
+    \reentrant
+
+    Many of QString's member functions are overloaded to accept
+    \c{const char *} instead of QString. This includes the copy
+    constructor, the assignment operator, the comparison operators,
+    and various other functions such as \l{QString::insert()}{insert()},
+    \l{QString::append()}{append()}, and \l{QString::prepend()}{prepend()}.
+    Some of these functions are optimized to avoid constructing a
+    QString object for the \c{const char *} data. For example,
+    assuming \c str is a QString,
+
+    \snippet code/src_corelib_text_qstring.cpp 3
+
+    is much faster than
+
+    \snippet code/src_corelib_text_qstring.cpp 4
+
+    because it doesn't construct four temporary QString objects and
+    make a deep copy of the character data.
+
+    However, that is not true for all QString member functions that take
+    \c{const char *} and therefore applications should assume a temporary will
+    be created, such as in
+
+    \snippet code/src_corelib_text_qstring.cpp 4bis
+
+    Applications that define \l QT_NO_CAST_FROM_ASCII (as explained
+    in the QString documentation) don't have access to QString's
+    \c{const char *} API. To provide an efficient way of specifying
+    constant Latin-1 strings, Qt provides the QLatin1StringView, which is
+    just a very thin wrapper around a \c{const char *}. Using
+    QLatin1StringView, the example code above becomes
+
+    \snippet code/src_corelib_text_qstring.cpp 5
+
+    This is a bit longer to type, but it provides exactly the same
+    benefits as the first version of the code, and is faster than
+    converting the Latin-1 strings using QString::fromLatin1().
+
+    Thanks to the QString(QLatin1StringView) constructor,
+    QLatin1StringView can be used everywhere a QString is expected. For
+    example:
+
+    \snippet code/src_corelib_text_qstring.cpp 6
+
+    \note If the function you're calling with a QLatin1StringView
+    argument isn't actually overloaded to take QLatin1StringView, the
+    implicit conversion to QString will trigger a memory allocation,
+    which is usually what you want to avoid by using QLatin1StringView
+    in the first place. In those cases, using QStringLiteral may be
+    the better option.
+
+    \sa QString, QLatin1Char, {QStringLiteral()}{QStringLiteral},
+    QT_NO_CAST_FROM_ASCII
+*/
+
+/*!
+    \class QLatin1String
+    \inmodule QtCore
+    \brief QLatin1String is the same as QLatin1StringView.
+
+    QLatin1String is a view to a Latin-1 string. It's the same as
+    QLatin1StringView and is kept for compatibility reasons. It is
+    recommended to use QLatin1StringView instead.
+
+    Please see the QLatin1StringView documentation for details.
+*/
+
+/*!
+    \typedef QLatin1StringView::value_type
+    \since 5.10
+
+    Alias for \c{const char}. Provided for compatibility with the STL.
+*/
+
+/*!
+    \typedef QLatin1StringView::difference_type
+    \since 5.10
+
+    Alias for \c{qsizetype}. Provided for compatibility with the STL.
+*/
+
+/*!
+    \typedef QLatin1StringView::size_type
+    \since 5.10
+
+    Alias for \c{qsizetype}. Provided for compatibility with the STL.
+
+    \note In version prior to Qt 6, this was an alias for \c{int},
+    restricting the amount of data that could be held in a QLatin1StringView
+    on 64-bit architectures.
+*/
+
+/*!
+    \typedef QLatin1StringView::reference
+    \since 5.10
+
+    Alias for \c{value_type &}. Provided for compatibility with the STL.
+*/
+
+/*!
+    \typedef QLatin1StringView::const_reference
+    \since 5.11
+
+    Alias for \c{reference}. Provided for compatibility with the STL.
+*/
+
+/*!
+    \typedef QLatin1StringView::iterator
+    \since 5.10
+
+    QLatin1StringView does not support mutable iterators, so this is the same
+    as const_iterator.
+
+    \sa const_iterator, reverse_iterator
+*/
+
+/*!
+    \typedef QLatin1StringView::const_iterator
+    \since 5.10
+
+    \sa iterator, const_reverse_iterator
+*/
+
+/*!
+    \typedef QLatin1StringView::reverse_iterator
+    \since 5.10
+
+    QLatin1StringView does not support mutable reverse iterators, so this is the
+    same as const_reverse_iterator.
+
+    \sa const_reverse_iterator, iterator
+*/
+
+/*!
+    \typedef QLatin1StringView::const_reverse_iterator
+    \since 5.10
+
+    \sa reverse_iterator, const_iterator
+*/
+
+/*! \fn QLatin1StringView::QLatin1StringView()
+    \since 5.6
+
+    Constructs a QLatin1StringView object that stores a \nullptr.
+
+    \sa data(), isEmpty(), isNull(), {Distinction Between Null and Empty Strings}
+*/
+
+/*! \fn QLatin1StringView::QLatin1StringView(std::nullptr_t)
+    \since 6.4
+
+    Constructs a QLatin1StringView object that stores a \nullptr.
+
+    \sa data(), isEmpty(), isNull(), {Distinction Between Null and Empty Strings}
+*/
+
+/*! \fn QLatin1StringView::QLatin1StringView(const char *str)
+
+    Constructs a QLatin1StringView object that stores \a str.
+
+    The string data is \e not copied. The caller must be able to
+    guarantee that \a str will not be deleted or modified as long as
+    the QLatin1StringView object exists.
+
+    \sa latin1()
+*/
+
+/*! \fn QLatin1StringView::QLatin1StringView(const char *str, qsizetype size)
+
+    Constructs a QLatin1StringView object that stores \a str with \a size.
+
+    The string data is \e not copied. The caller must be able to
+    guarantee that \a str will not be deleted or modified as long as
+    the QLatin1StringView object exists.
+
+    \note: any null ('\\0') bytes in the byte array will be included in this
+    string, which will be converted to Unicode null characters (U+0000) if this
+    string is used by QString. This behavior is different from Qt 5.x.
+
+    \sa latin1()
+*/
+
+/*!
+    \fn QLatin1StringView::QLatin1StringView(const char *first, const char *last)
+    \since 5.10
+
+    Constructs a QLatin1StringView object that stores \a first with length
+    (\a last - \a first).
+
+    The range \c{[first,last)} must remain valid for the lifetime of
+    this Latin-1 string object.
+
+    Passing \nullptr as \a first is safe if \a last is \nullptr,
+    too, and results in a null Latin-1 string.
+
+    The behavior is undefined if \a last precedes \a first, \a first
+    is \nullptr and \a last is not, or if \c{last - first >
+    INT_MAX}.
+*/
+
+/*! \fn QLatin1StringView::QLatin1StringView(const QByteArray &str)
+
+    Constructs a QLatin1StringView object as a view on \a str.
+
+    The string data is \e not copied. The caller must be able to
+    guarantee that \a str will not be deleted or modified as long as
+    the QLatin1StringView object exists.
+
+    \sa latin1()
+*/
+
+/*! \fn QLatin1StringView::QLatin1StringView(QByteArrayView str)
+    \since 6.3
+
+    Constructs a QLatin1StringView object as a view on \a str.
+
+    The string data is \e not copied. The caller must be able to
+    guarantee that the data which \a str is pointing to will not
+    be deleted or modified as long as the QLatin1StringView object
+    exists. The size is obtained from \a str as-is, without checking
+    for a null-terminator.
+
+    \note: any null ('\\0') bytes in the byte array will be included in this
+    string, which will be converted to Unicode null characters (U+0000) if this
+    string is used by QString.
+
+    \sa latin1()
+*/
+
+/*!
+    \fn QString QLatin1StringView::toString() const
+    \since 6.0
+
+    Converts this Latin-1 string into a QString. Equivalent to
+    \code
+    return QString(*this);
+    \endcode
+*/
+
+/*! \fn const char *QLatin1StringView::latin1() const
+
+    Returns the start of the Latin-1 string referenced by this object.
+*/
+
+/*! \fn const char *QLatin1StringView::data() const
+
+    Returns the start of the Latin-1 string referenced by this object.
+*/
+
+/*! \fn const char *QLatin1StringView::constData() const
+    \since 6.4
+
+    Returns the start of the Latin-1 string referenced by this object.
+
+    This function is provided for compatibility with other Qt containers.
+
+    \sa data()
+*/
+
+/*! \fn qsizetype QLatin1StringView::size() const
+
+    Returns the size of the Latin-1 string referenced by this object.
+
+    \note In version prior to Qt 6, this function returned \c{int},
+    restricting the amount of data that could be held in a QLatin1StringView
+    on 64-bit architectures.
+*/
+
+/*! \fn qsizetype QLatin1StringView::length() const
+    \since 6.4
+
+    Same as size().
+
+    This function is provided for compatibility with other Qt containers.
+*/
+
+/*! \fn bool QLatin1StringView::isNull() const
+    \since 5.10
+
+    Returns whether the Latin-1 string referenced by this object is null
+    (\c{data() == nullptr}) or not.
+
+    \sa isEmpty(), data()
+*/
+
+/*! \fn bool QLatin1StringView::isEmpty() const
+    \since 5.10
+
+    Returns whether the Latin-1 string referenced by this object is empty
+    (\c{size() == 0}) or not.
+
+    \sa isNull(), size()
+*/
+
+/*! \fn bool QLatin1StringView::empty() const
+    \since 6.4
+
+    Returns whether the Latin-1 string referenced by this object is empty
+    (\c{size() == 0}) or not.
+
+    This function is provided for STL compatibility.
+
+    \sa isEmpty(), isNull(), size()
+*/
+
+/*! \fn QLatin1Char QLatin1StringView::at(qsizetype pos) const
+    \since 5.8
+
+    Returns the character at position \a pos in this object.
+
+    \note This function performs no error checking.
+    The behavior is undefined when \a pos < 0 or \a pos >= size().
+
+    \sa operator[]()
+*/
+
+/*! \fn QLatin1Char QLatin1StringView::operator[](qsizetype pos) const
+    \since 5.8
+
+    Returns the character at position \a pos in this object.
+
+    \note This function performs no error checking.
+    The behavior is undefined when \a pos < 0 or \a pos >= size().
+
+    \sa at()
+*/
+
+/*!
+    \fn QLatin1Char QLatin1StringView::front() const
+    \since 5.10
+
+    Returns the first character in the string.
+    Same as \c{at(0)}.
+
+    This function is provided for STL compatibility.
+
+    \warning Calling this function on an empty string constitutes
+    undefined behavior.
+
+    \sa back(), at(), operator[]()
+*/
+
+/*!
+    \fn QLatin1Char QLatin1StringView::first() const
+    \since 6.4
+
+    Returns the first character in the string.
+    Same as \c{at(0)} or front().
+
+    This function is provided for compatibility with other Qt containers.
+
+    \warning Calling this function on an empty string constitutes
+    undefined behavior.
+
+    \sa last(), front(), back()
+*/
+
+/*!
+    \fn QLatin1Char QLatin1StringView::back() const
+    \since 5.10
+
+    Returns the last character in the string.
+    Same as \c{at(size() - 1)}.
+
+    This function is provided for STL compatibility.
+
+    \warning Calling this function on an empty string constitutes
+    undefined behavior.
+
+    \sa front(), at(), operator[]()
+*/
+
+/*!
+    \fn QLatin1Char QLatin1StringView::last() const
+    \since 6.4
+
+    Returns the last character in the string.
+    Same as \c{at(size() - 1)} or back().
+
+    This function is provided for compatibility with other Qt containers.
+
+    \warning Calling this function on an empty string constitutes
+    undefined behavior.
+
+    \sa first(), back(), front()
+*/
+
+/*!
+    \fn int QLatin1StringView::compare(QStringView str, Qt::CaseSensitivity cs) const
+    \fn int QLatin1StringView::compare(QLatin1StringView l1, Qt::CaseSensitivity cs) const
+    \fn int QLatin1StringView::compare(QChar ch) const
+    \fn int QLatin1StringView::compare(QChar ch, Qt::CaseSensitivity cs) const
+    \since 5.14
+
+    Returns an integer that compares to zero as this string view compares
+    to the UTF-16 string viewed by \a str, the Latin-1 string viewed by \a l1,
+    or the character \a ch, respectively.
+
+    \include qstring.qdocinc {search-comparison-case-sensitivity} {search}
+
+    \sa operator==(), operator<(), operator>()
+*/
+
+/*!
+    \fn int QLatin1StringView::compare(QUtf8StringView str, Qt::CaseSensitivity cs) const
+    \since 6.5
+
+    Returns an integer that compares to zero as this string view compares to the
+    string view \a str.
+
+    \include qstring.qdocinc {search-comparison-case-sensitivity} {comparison}
+
+    \sa operator==(), operator<(), operator>()
+*/
+
+
+/*!
+    \fn bool QLatin1StringView::startsWith(QStringView str, Qt::CaseSensitivity cs) const
+    \since 5.10
+    \fn bool QLatin1StringView::startsWith(QLatin1StringView l1, Qt::CaseSensitivity cs) const
+    \since 5.10
+    \fn bool QLatin1StringView::startsWith(QChar ch) const
+    \since 5.10
+    \fn bool QLatin1StringView::startsWith(QChar ch, Qt::CaseSensitivity cs) const
+    \since 5.10
+
+    Returns \c true if this Latin-1 string view starts with the UTF-16
+    string viewed by \a str, the Latin-1 string viewed by \a l1, or the
+    character \a ch, respectively; otherwise returns \c false.
+
+   \include qstring.qdocinc {search-comparison-case-sensitivity} {search}
+
+    \sa endsWith()
+*/
+
+/*!
+    \fn bool QLatin1StringView::endsWith(QStringView str, Qt::CaseSensitivity cs) const
+    \since 5.10
+    \fn bool QLatin1StringView::endsWith(QLatin1StringView l1, Qt::CaseSensitivity cs) const
+    \since 5.10
+    \fn bool QLatin1StringView::endsWith(QChar ch) const
+    \since 5.10
+    \fn bool QLatin1StringView::endsWith(QChar ch, Qt::CaseSensitivity cs) const
+    \since 5.10
+
+    Returns \c true if this Latin-1 string view ends with the UTF-16 string
+    viewed \a str, the Latin-1 string viewed by \a l1, or the character \a ch,
+    respectively; otherwise returns \c false.
+
+    \include qstring.qdocinc {search-comparison-case-sensitivity} {search}
+
+    \sa startsWith()
+*/
+
+/*!
+    \fn qsizetype QLatin1StringView::indexOf(QStringView str, qsizetype from = 0, Qt::CaseSensitivity cs = Qt::CaseSensitive) const
+    \fn qsizetype QLatin1StringView::indexOf(QLatin1StringView l1, qsizetype from = 0, Qt::CaseSensitivity cs = Qt::CaseSensitive) const
+    \fn qsizetype QLatin1StringView::indexOf(QChar c, qsizetype from = 0, Qt::CaseSensitivity cs = Qt::CaseSensitive) const
+    \since 5.14
+
+    Returns the index position in this Latin-1 string view of the first
+    occurrence of the UTF-16 string viewed by \a str, the Latin-1 string
+    viewed by \a l1, or the character \a ch, respectively, searching forward
+    from index position \a from. Returns -1 if \a str, \a l1 or \a c is not
+    found, respectively.
+
+    \include qstring.qdocinc {search-comparison-case-sensitivity} {search}
+
+    \include qstring.qdocinc negative-index-start-search-from-end
+
+    \sa QString::indexOf()
+*/
+
+/*!
+    \fn bool QLatin1StringView::contains(QStringView str, Qt::CaseSensitivity cs) const
+    \fn bool QLatin1StringView::contains(QLatin1StringView l1, Qt::CaseSensitivity cs) const
+    \fn bool QLatin1StringView::contains(QChar c, Qt::CaseSensitivity cs) const
+    \since 5.14
+
+    Returns \c true if this Latin-1 string view contains an occurrence of the
+    UTF-16 string viewed by \a str, the Latin-1 string viewed by \a l1, or the
+    character \a ch, respectively; otherwise returns \c false.
+
+    \include qstring.qdocinc {search-comparison-case-sensitivity} {search}
+
+    \sa indexOf(), QStringView::contains(), QStringView::indexOf(),
+    QString::indexOf()
+*/
+
+/*!
+    \fn qsizetype QLatin1StringView::lastIndexOf(QStringView str, qsizetype from, Qt::CaseSensitivity cs) const
+    \fn qsizetype QLatin1StringView::lastIndexOf(QLatin1StringView l1, qsizetype from, Qt::CaseSensitivity cs) const
+    \fn qsizetype QLatin1StringView::lastIndexOf(QChar c, qsizetype from, Qt::CaseSensitivity cs) const
+    \since 5.14
+
+    Returns the index position in this Latin-1 string view of the last
+    occurrence of the UTF-16 string viewed by \a str, the Latin-1 string
+    viewed by \a l1, or the character \a ch, respectively, searching backward
+    from index position \a from; returns -1 if \a str, \a l1 or \a ch is not
+    found, respectively.
+
+    \include qstring.qdocinc negative-index-start-search-from-end
+
+    \include qstring.qdocinc {search-comparison-case-sensitivity} {search}
+
+    \note When searching for a 0-length \a str or \a l1, the match at
+    the end of the data is excluded from the search by a negative \a
+    from, even though \c{-1} is normally thought of as searching from
+    the end of the string: the match at the end is \e after the last
+    character, so it is excluded. To include such a final empty match,
+    either give a positive value for \a from or omit the \a from
+    parameter entirely.
+
+    \sa indexOf(), QStringView::lastIndexOf(), QStringView::indexOf(),
+    QString::indexOf()
+*/
+
+/*!
+    \fn qsizetype QLatin1StringView::lastIndexOf(QStringView str, Qt::CaseSensitivity cs = Qt::CaseSensitive) const
+    \fn qsizetype QLatin1StringView::lastIndexOf(QLatin1StringView l1, Qt::CaseSensitivity cs = Qt::CaseSensitive) const
+    \since 6.2
+    \overload lastIndexOf()
+
+    Returns the index position in this Latin-1 string view of the last
+    occurrence of the UTF-16 string viewed by \a str or the Latin-1 string
+    viewed by \a l1, respectively. Returns -1 if \a str or \a l1 is not found,
+    respectively.
+
+    \include qstring.qdocinc {search-comparison-case-sensitivity} {search}
+*/
+
+/*!
+    \fn qsizetype QLatin1StringView::lastIndexOf(QChar ch, Qt::CaseSensitivity cs) const
+    \since 6.3
+    \overload
+*/
+
+/*!
+    \fn qsizetype QLatin1StringView::count(QStringView str, Qt::CaseSensitivity cs) const
+    \fn qsizetype QLatin1StringView::count(QLatin1StringView l1, Qt::CaseSensitivity cs) const
+    \fn qsizetype QLatin1StringView::count(QChar ch, Qt::CaseSensitivity cs) const
+    \since 6.4
+
+    Returns the number of (potentially overlapping) occurrences of the
+    UTF-16 string viewed by \a str, the Latin-1 string viewed by \a l1,
+    or the character \a ch, respectively, in this string view.
+
+    \include qstring.qdocinc {search-comparison-case-sensitivity} {search}
+
+    \sa contains(), indexOf()
+*/
+
+/*!
+    \fn QLatin1StringView::const_iterator QLatin1StringView::begin() const
+    \since 5.10
+
+    Returns a const \l{STL-style iterators}{STL-style iterator} pointing to the
+    first character in the string.
+
+    This function is provided for STL compatibility.
+
+    \sa end(), cbegin(), rbegin(), data()
+*/
+
+/*!
+    \fn QLatin1StringView::const_iterator QLatin1StringView::cbegin() const
+    \since 5.10
+
+    Same as begin().
+
+    This function is provided for STL compatibility.
+
+    \sa cend(), begin(), crbegin(), data()
+*/
+
+/*!
+    \fn QLatin1StringView::const_iterator QLatin1StringView::constBegin() const
+    \since 6.4
+
+    Same as begin().
+
+    This function is provided for compatibility with other Qt containers.
+
+    \sa constEnd(), begin(), cbegin(), data()
+*/
+
+/*!
+    \fn QLatin1StringView::const_iterator QLatin1StringView::end() const
+    \since 5.10
+
+    Returns a const \l{STL-style iterators}{STL-style iterator} pointing just
+    after the last character in the string.
+
+    This function is provided for STL compatibility.
+
+    \sa begin(), cend(), rend()
+*/
+
+/*! \fn QLatin1StringView::const_iterator QLatin1StringView::cend() const
+    \since 5.10
+
+    Same as end().
+
+    This function is provided for STL compatibility.
+
+    \sa cbegin(), end(), crend()
+*/
+
+/*! \fn QLatin1StringView::const_iterator QLatin1StringView::constEnd() const
+    \since 6.4
+
+    Same as end().
+
+    This function is provided for compatibility with other Qt containers.
+
+    \sa constBegin(), end(), cend(), crend()
+*/
+
+/*!
+    \fn QLatin1StringView::const_reverse_iterator QLatin1StringView::rbegin() const
+    \since 5.10
+
+    Returns a const \l{STL-style iterators}{STL-style} reverse iterator pointing
+    to the first character in the string, in reverse order.
+
+    This function is provided for STL compatibility.
+
+    \sa rend(), crbegin(), begin()
+*/
+
+/*!
+    \fn QLatin1StringView::const_reverse_iterator QLatin1StringView::crbegin() const
+    \since 5.10
+
+    Same as rbegin().
+
+    This function is provided for STL compatibility.
+
+    \sa crend(), rbegin(), cbegin()
+*/
+
+/*!
+    \fn QLatin1StringView::const_reverse_iterator QLatin1StringView::rend() const
+    \since 5.10
+
+    Returns a \l{STL-style iterators}{STL-style} reverse iterator pointing just
+    after the last character in the string, in reverse order.
+
+    This function is provided for STL compatibility.
+
+    \sa rbegin(), crend(), end()
+*/
+
+/*!
+    \fn QLatin1StringView::const_reverse_iterator QLatin1StringView::crend() const
+    \since 5.10
+
+    Same as rend().
+
+    This function is provided for STL compatibility.
+
+    \sa crbegin(), rend(), cend()
+*/
+
+/*!
+    \fn QLatin1StringView QLatin1StringView::mid(qsizetype start, qsizetype length) const
+    \since 5.8
+
+    Returns the substring of length \a length starting at position
+    \a start in this Latin-1 string view.
+
+    If you know that \a start and \a length cannot be out of bounds, use
+    sliced() instead in new code, because it is faster.
+
+    Returns an empty Latin-1 string view if \a start exceeds the length
+    of this string view. If there are less than \a length characters available
+    in this string view starting at \a start, or if \a length is negative
+    (default), the function returns all characters that are available from
+    \a start.
+
+    \sa first(), last(), sliced(), chopped(), chop(), truncate()
+*/
+
+/*!
+    \fn QLatin1StringView QLatin1StringView::left(qsizetype length) const
+    \since 5.8
+
+    If you know that \a length cannot be out of bounds, use first() instead in
+    new code, because it is faster.
+
+    Returns the substring of length \a length starting at position
+    0 in this Latin-1 string view.
+
+    The entire Latin-1 string view is returned if \a length is greater
+    than or equal to size(), or less than zero.
+
+    \sa first(), last(), sliced(), startsWith(), chopped(), chop(), truncate()
+*/
+
+/*!
+    \fn QLatin1StringView QLatin1StringView::right(qsizetype length) const
+    \since 5.8
+
+    If you know that \a length cannot be out of bounds, use last() instead in
+    new code, because it is faster.
+
+    Returns the substring of length \a length starting at position
+    size() - \a length in this Latin-1 string view.
+
+    The entire Latin-1 string view is returned if \a length is greater
+    than or equal to size(), or less than zero.
+
+    \sa first(), last(), sliced(), endsWith(), chopped(), chop(), truncate()
+*/
+
+/*!
+    \fn QLatin1StringView QLatin1StringView::first(qsizetype n) const
+    \since 6.0
+
+    Returns a Latin-1 string view that contains the first \a n characters
+    of this string view.
+
+    \note The behavior is undefined when \a n < 0 or \a n > size().
+
+    \sa last(), startsWith(), chopped(), chop(), truncate()
+*/
+
+/*!
+    \fn QLatin1StringView QLatin1StringView::last(qsizetype n) const
+    \since 6.0
+
+    Returns a Latin-1 string view that contains the last \a n characters
+    of this string view.
+
+    \note The behavior is undefined when \a n < 0 or \a n > size().
+
+    \sa first(), endsWith(), chopped(), chop(), truncate()
+*/
+
+/*!
+    \fn QLatin1StringView QLatin1StringView::sliced(qsizetype pos, qsizetype n) const
+    \since 6.0
+
+    Returns a Latin-1 string view that points to \a n characters of this
+    string view, starting at position \a pos.
+
+    \note The behavior is undefined when \a pos < 0, \a n < 0,
+    or \c{pos + n > size()}.
+
+    \sa first(), last(), chopped(), chop(), truncate()
+*/
+
+/*!
+    \fn QLatin1StringView QLatin1StringView::sliced(qsizetype pos) const
+    \since 6.0
+
+    Returns a Latin-1 string view starting at position \a pos in this
+    string view, and extending to its end.
+
+    \note The behavior is undefined when \a pos < 0 or \a pos > size().
+
+    \sa first(), last(), chopped(), chop(), truncate()
+*/
+
+/*!
+    \fn QLatin1StringView QLatin1StringView::chopped(qsizetype length) const
+    \since 5.10
+
+    Returns the substring of length size() - \a length starting at the
+    beginning of this object.
+
+    Same as \c{left(size() - length)}.
+
+    \note The behavior is undefined when \a length < 0 or \a length > size().
+
+    \sa sliced(), first(), last(), chop(), truncate()
+*/
+
+/*!
+    \fn void QLatin1StringView::truncate(qsizetype length)
+    \since 5.10
+
+    Truncates this string to length \a length.
+
+    Same as \c{*this = left(length)}.
+
+    \note The behavior is undefined when \a length < 0 or \a length > size().
+
+    \sa sliced(), first(), last(), chopped(), chop()
+*/
+
+/*!
+    \fn void QLatin1StringView::chop(qsizetype length)
+    \since 5.10
+
+    Truncates this string by \a length characters.
+
+    Same as \c{*this = left(size() - length)}.
+
+    \note The behavior is undefined when \a length < 0 or \a length > size().
+
+    \sa sliced(), first(), last(), chopped(), truncate()
+*/
+
+/*!
+    \fn QLatin1StringView QLatin1StringView::trimmed() const
+    \since 5.10
+
+    Strips leading and trailing whitespace and returns the result.
+
+    Whitespace means any character for which QChar::isSpace() returns
+    \c true. This includes the ASCII characters '\\t', '\\n', '\\v',
+    '\\f', '\\r', and ' '.
+*/
+
+/*!
+    \fn bool QLatin1StringView::operator==(const char *other) const
+    \since 4.3
+
+    Returns \c true if the string is equal to const char pointer \a other;
+    otherwise returns \c false.
+
+    The \a other const char pointer is converted to a QString using
+    the QString::fromUtf8() function.
+
+    You can disable this operator by defining
+    \l QT_NO_CAST_FROM_ASCII when you compile your applications. This
+    can be useful if you want to ensure that all user-visible strings
+    go through QObject::tr(), for example.
+
+    \sa {Comparing Strings}
+*/
+
+/*!
+    \fn bool QLatin1StringView::operator==(const QByteArray &other) const
+    \since 5.0
+    \overload
+
+    The \a other byte array is converted to a QString using
+    the QString::fromUtf8() function.
+
+    You can disable this operator by defining
+    \l QT_NO_CAST_FROM_ASCII when you compile your applications. This
+    can be useful if you want to ensure that all user-visible strings
+    go through QObject::tr(), for example.
+*/
+
+/*!
+    \fn bool QLatin1StringView::operator!=(const char *other) const
+    \since 4.3
+
+    Returns \c true if this string is not equal to const char pointer \a other;
+    otherwise returns \c false.
+
+    The \a other const char pointer is converted to a QString using
+    the QString::fromUtf8() function.
+
+    You can disable this operator by defining
+    \l QT_NO_CAST_FROM_ASCII when you compile your applications. This
+    can be useful if you want to ensure that all user-visible strings
+    go through QObject::tr(), for example.
+
+    \sa {Comparing Strings}
+*/
+
+/*!
+    \fn bool QLatin1StringView::operator!=(const QByteArray &other) const
+    \since 5.0
+    \overload operator!=()
+
+    The \a other byte array is converted to a QString using
+    the QString::fromUtf8() function.
+
+    You can disable this operator by defining
+    \l QT_NO_CAST_FROM_ASCII when you compile your applications. This
+    can be useful if you want to ensure that all user-visible strings
+    go through QObject::tr(), for example.
+*/
+
+/*!
+    \fn bool QLatin1StringView::operator>(const char *other) const
+    \since 4.3
+
+    Returns \c true if this string is lexically greater than const char pointer
+    \a other; otherwise returns \c false.
+
+    The \a other const char pointer is converted to a QString using
+    the QString::fromUtf8() function.
+
+    You can disable this operator by defining \l QT_NO_CAST_FROM_ASCII
+    when you compile your applications. This can be useful if you want
+    to ensure that all user-visible strings go through QObject::tr(),
+    for example.
+
+    \sa {Comparing Strings}
+*/
+
+/*!
+    \fn bool QLatin1StringView::operator>(const QByteArray &other) const
+    \since 5.0
+    \overload
+
+    The \a other byte array is converted to a QString using
+    the QString::fromUtf8() function.
+
+    You can disable this operator by defining \l QT_NO_CAST_FROM_ASCII
+    when you compile your applications. This can be useful if you want
+    to ensure that all user-visible strings go through QObject::tr(),
+    for example.
+*/
+
+/*!
+    \fn bool QLatin1StringView::operator<(const char *other) const
+    \since 4.3
+
+    Returns \c true if this string is lexically less than const char pointer
+    \a other; otherwise returns \c false.
+
+    The \a other const char pointer is converted to a QString using
+    the QString::fromUtf8() function.
+
+    You can disable this operator by defining
+    \l QT_NO_CAST_FROM_ASCII when you compile your applications. This
+    can be useful if you want to ensure that all user-visible strings
+    go through QObject::tr(), for example.
+
+    \sa {Comparing Strings}
+*/
+
+/*!
+    \fn bool QLatin1StringView::operator<(const QByteArray &other) const
+    \since 5.0
+    \overload
+
+    The \a other byte array is converted to a QString using
+    the QString::fromUtf8() function.
+
+    You can disable this operator by defining
+    \l QT_NO_CAST_FROM_ASCII when you compile your applications. This
+    can be useful if you want to ensure that all user-visible strings
+    go through QObject::tr(), for example.
+*/
+
+/*!
+    \fn bool QLatin1StringView::operator>=(const char *other) const
+    \since 4.3
+
+    Returns \c true if this string is lexically greater than or equal to
+    const char pointer \a other; otherwise returns \c false.
+
+    The \a other const char pointer is converted to a QString using
+    the QString::fromUtf8() function.
+
+    You can disable this operator by defining
+    \l QT_NO_CAST_FROM_ASCII when you compile your applications. This
+    can be useful if you want to ensure that all user-visible strings
+    go through QObject::tr(), for example.
+
+    \sa {Comparing Strings}
+*/
+
+/*!
+    \fn bool QLatin1StringView::operator>=(const QByteArray &other) const
+    \since 5.0
+    \overload
+
+    The \a other byte array is converted to a QString using
+    the QString::fromUtf8() function.
+
+    You can disable this operator by defining
+    \l QT_NO_CAST_FROM_ASCII when you compile your applications. This
+    can be useful if you want to ensure that all user-visible strings
+    go through QObject::tr(), for example.
+*/
+
+/*!
+    \fn bool QLatin1StringView::operator<=(const char *other) const
+    \since 4.3
+
+    Returns \c true if this string is lexically less than or equal to
+    const char pointer \a other; otherwise returns \c false.
+
+    The \a other const char pointer is converted to a QString using
+    the QString::fromUtf8() function.
+
+    You can disable this operator by defining
+    \l QT_NO_CAST_FROM_ASCII when you compile your applications. This
+    can be useful if you want to ensure that all user-visible strings
+    go through QObject::tr(), for example.
+
+    \sa {Comparing Strings}
+*/
+
+/*!
+    \fn bool QLatin1StringView::operator<=(const QByteArray &other) const
+    \since 5.0
+    \overload
+
+    The \a other byte array is converted to a QString using
+    the QString::fromUtf8() function.
+
+    You can disable this operator by defining
+    \l QT_NO_CAST_FROM_ASCII when you compile your applications. This
+    can be useful if you want to ensure that all user-visible strings
+    go through QObject::tr(), for example.
+*/
+
+/*! \fn bool QLatin1StringView::operator==(QLatin1StringView s1, QLatin1StringView s2)
+
+    Returns \c true if string \a s1 is lexically equal to string \a s2;
+    otherwise returns \c false.
+*/
+/*! \fn bool QLatin1StringView::operator!=(QLatin1StringView s1, QLatin1StringView s2)
+
+    Returns \c true if string \a s1 is lexically not equal to string \a s2;
+    otherwise returns \c false.
+*/
+/*! \fn bool QLatin1StringView::operator<(QLatin1StringView s1, QLatin1StringView s2)
+
+    Returns \c true if string \a s1 is lexically less than string \a s2;
+    otherwise returns \c false.
+*/
+/*! \fn bool QLatin1StringView::operator<=(QLatin1StringView s1, QLatin1StringView s2)
+
+    Returns \c true if string \a s1 is lexically less than or equal to
+    string \a s2; otherwise returns \c false.
+*/
+/*! \fn bool QLatin1StringView::operator>(QLatin1StringView s1, QLatin1StringView s2)
+
+    Returns \c true if string \a s1 is lexically greater than string \a s2;
+    otherwise returns \c false.
+*/
+/*! \fn bool QLatin1StringView::operator>=(QLatin1StringView s1, QLatin1StringView s2)
+
+    Returns \c true if string \a s1 is lexically greater than or equal
+    to string \a s2; otherwise returns \c false.
+*/
+
+/*! \fn bool QLatin1StringView::operator==(QChar ch, QLatin1StringView s)
+
+    Returns \c true if char \a ch is lexically equal to string \a s;
+    otherwise returns \c false.
+*/
+/*! \fn bool QLatin1StringView::operator<(QChar ch, QLatin1StringView s)
+
+    Returns \c true if char \a ch is lexically less than string \a s;
+    otherwise returns \c false.
+*/
+/*! \fn bool QLatin1StringView::operator>(QChar ch, QLatin1StringView s)
+    Returns \c true if char \a ch is lexically greater than string \a s;
+    otherwise returns \c false.
+*/
+/*! \fn bool QLatin1StringView::operator!=(QChar ch, QLatin1StringView s)
+
+    Returns \c true if char \a ch is lexically not equal to string \a s;
+    otherwise returns \c false.
+*/
+/*! \fn bool QLatin1StringView::operator<=(QChar ch, QLatin1StringView s)
+
+    Returns \c true if char \a ch is lexically less than or equal to
+    string \a s; otherwise returns \c false.
+*/
+/*! \fn bool QLatin1StringView::operator>=(QChar ch, QLatin1StringView s)
+
+    Returns \c true if char \a ch is lexically greater than or equal to
+    string \a s; otherwise returns \c false.
+*/
+
+/*! \fn bool QLatin1StringView::operator==(QLatin1StringView s, QChar ch)
+
+    Returns \c true if string \a s is lexically equal to char \a ch;
+    otherwise returns \c false.
+*/
+/*! \fn bool QLatin1StringView::operator<(QLatin1StringView s, QChar ch)
+
+    Returns \c true if string \a s is lexically less than char \a ch;
+    otherwise returns \c false.
+*/
+/*! \fn bool QLatin1StringView::operator>(QLatin1StringView s, QChar ch)
+
+    Returns \c true if string \a s is lexically greater than char \a ch;
+    otherwise returns \c false.
+*/
+/*! \fn bool QLatin1StringView::operator!=(QLatin1StringView s, QChar ch)
+
+    Returns \c true if string \a s is lexically not equal to char \a ch;
+    otherwise returns \c false.
+*/
+/*! \fn bool QLatin1StringView::operator<=(QLatin1StringView s, QChar ch)
+
+    Returns \c true if string \a s is lexically less than or equal to
+    char \a ch; otherwise returns \c false.
+*/
+/*! \fn bool QLatin1StringView::operator>=(QLatin1StringView s, QChar ch)
+
+    Returns \c true if string \a s is lexically greater than or equal to
+    char \a ch; otherwise returns \c false.
+*/
+
+/*! \fn bool QLatin1StringView::operator==(QStringView s1, QLatin1StringView s2)
+
+    Returns \c true if string view \a s1 is lexically equal to string \a s2;
+    otherwise returns \c false.
+*/
+/*! \fn bool QLatin1StringView::operator<(QStringView s1, QLatin1StringView s2)
+
+    Returns \c true if string view \a s1 is lexically less than string \a s2;
+    otherwise returns \c false.
+*/
+/*! \fn bool QLatin1StringView::operator>(QStringView s1, QLatin1StringView s2)
+
+    Returns \c true if string view \a s1 is lexically greater than string \a s2;
+    otherwise returns \c false.
+*/
+/*! \fn bool QLatin1StringView::operator!=(QStringView s1, QLatin1StringView s2)
+
+    Returns \c true if string view \a s1 is lexically not equal to string \a s2;
+    otherwise returns \c false.
+*/
+/*! \fn bool QLatin1StringView::operator<=(QStringView s1, QLatin1StringView s2)
+
+    Returns \c true if string view \a s1 is lexically less than or equal to
+    string \a s2; otherwise returns \c false.
+*/
+/*! \fn bool QLatin1StringView::operator>=(QStringView s1, QLatin1StringView s2)
+
+    Returns \c true if string view \a s1 is lexically greater than or equal to
+    string \a s2; otherwise returns \c false.
+*/
+
+/*! \fn bool QLatin1StringView::operator==(QLatin1StringView s1, QStringView s2)
+
+    Returns \c true if string \a s1 is lexically equal to string view \a s2;
+    otherwise returns \c false.
+*/
+/*! \fn bool QLatin1StringView::operator<(QLatin1StringView s1, QStringView s2)
+
+    Returns \c true if string \a s1 is lexically less than string view \a s2;
+    otherwise returns \c false.
+*/
+/*! \fn bool QLatin1StringView::operator>(QLatin1StringView s1, QStringView s2)
+
+    Returns \c true if string \a s1 is lexically greater than string view \a s2;
+    otherwise returns \c false.
+*/
+/*! \fn bool QLatin1StringView::operator!=(QLatin1StringView s1, QStringView s2)
+
+    Returns \c true if string \a s1 is lexically not equal to string view \a s2;
+    otherwise returns \c false.
+*/
+/*! \fn bool QLatin1StringView::operator<=(QLatin1StringView s1, QStringView s2)
+
+    Returns \c true if string \a s1 is lexically less than or equal to
+    string view \a s2; otherwise returns \c false.
+*/
+/*! \fn bool QLatin1StringView::operator>=(QLatin1StringView s1, QStringView s2)
+
+    Returns \c true if string \a s1 is lexically greater than or equal to
+    string view \a s2; otherwise returns \c false.
+*/
+
+/*! \fn bool QLatin1StringView::operator==(const char *s1, QLatin1StringView s2)
+
+    Returns \c true if const char pointer \a s1 is lexically equal to
+    string \a s2; otherwise returns \c false.
+*/
+/*! \fn bool QLatin1StringView::operator<(const char *s1, QLatin1StringView s2)
+
+    Returns \c true if const char pointer \a s1 is lexically less than
+    string \a s2; otherwise returns \c false.
+*/
+/*! \fn bool QLatin1StringView::operator>(const char *s1, QLatin1StringView s2)
+
+    Returns \c true if const char pointer \a s1 is lexically greater than
+    string \a s2; otherwise returns \c false.
+*/
+/*! \fn bool QLatin1StringView::operator!=(const char *s1, QLatin1StringView s2)
+
+    Returns \c true if const char pointer \a s1 is lexically not equal to
+    string \a s2; otherwise returns \c false.
+*/
+/*! \fn bool QLatin1StringView::operator<=(const char *s1, QLatin1StringView s2)
+
+    Returns \c true if const char pointer \a s1 is lexically less than or
+    equal to string \a s2; otherwise returns \c false.
+*/
+/*! \fn bool QLatin1StringView::operator>=(const char *s1, QLatin1StringView s2)
+
+    Returns \c true if const char pointer \a s1 is lexically greater than or
+    equal to string \a s2; otherwise returns \c false.
+*/
+
+/*!
+    \fn qlonglong QLatin1StringView::toLongLong(bool *ok, int base) const
+    \fn qulonglong QLatin1StringView::toULongLong(bool *ok, int base) const
+    \fn int QLatin1StringView::toInt(bool *ok, int base) const
+    \fn uint QLatin1StringView::toUInt(bool *ok, int base) const
+    \fn long QLatin1StringView::toLong(bool *ok, int base) const
+    \fn ulong QLatin1StringView::toULong(bool *ok, int base) const
+    \fn short QLatin1StringView::toShort(bool *ok, int base) const
+    \fn ushort QLatin1StringView::toUShort(bool *ok, int base) const
+
+    \since 6.4
+
+    Returns this QLatin1StringView converted to a corresponding numeric value using
+    base \a base, which is ten by default. Bases 0 and 2 through 36 are supported,
+    using letters for digits beyond 9; A is ten, B is eleven and so on.
+
+    If \a base is 0, the base is determined automatically using the following
+    rules (in this order), if the Latin-1 string view begins with:
+
+    \list
+        \li \c "0x", the rest of it is read as hexadecimal (base 16)
+        \li \c "0b", the rest of it is read as binary (base 2)
+        \li \c "0", the rest of it is read as octal (base 8)
+        \li otherwise it is read as decimal
+    \endlist
+
+    Returns 0 if the conversion fails.
+
+    If \a ok is not \nullptr, failure is reported by setting *\a{ok}
+    to \c false, and success by setting *\a{ok} to \c true.
+
+//! [latin1-numeric-conversion-note]
+    \note The conversion of the number is performed in the default C locale,
+    regardless of the user's locale. Use QLocale to perform locale-aware
+    conversions between numbers and strings.
+
+    This function ignores leading and trailing spacing characters.
+//! [latin1-numeric-conversion-note]
+
+    \note Support for the "0b" prefix was added in Qt 6.4.
+*/
+
+/*!
+    \fn double QLatin1StringView::toDouble(bool *ok) const
+    \fn float QLatin1StringView::toFloat(bool *ok) const
+    \since 6.4
+
+    Returns this QLatin1StringView converted to a corresponding floating-point value.
+
+    Returns an infinity if the conversion overflows or 0.0 if the
+    conversion fails for other reasons (e.g. underflow).
+
+    If \a ok is not \nullptr, failure is reported by setting *\a{ok}
+    to \c false, and success by setting *\a{ok} to \c true.
+
+    \warning The QLatin1StringView content may only contain valid numerical
+    characters which includes the plus/minus sign, the character e used in
+    scientific notation, and the decimal point. Including the unit or additional
+    characters leads to a conversion error.
+
+    \include qlatin1stringview.qdoc latin1-numeric-conversion-note
+*/
+
+/*!
+    \fn Qt::Literals::StringLiterals::operator""_L1(const char *str, size_t size)
+
+    \relates QLatin1StringView
+    \since 6.4
+
+    Literal operator that creates a QLatin1StringView out of the first \a size
+    characters in the char string literal \a str.
+
+    The following code creates a QLatin1StringView:
+    \code
+    using namespace Qt::Literals::StringLiterals;
+
+    auto str = "hello"_L1;
+    \endcode
+
+    \sa Qt::Literals::StringLiterals
+*/
diff --git a/src/corelib/text/qlocale.cpp b/src/corelib/text/qlocale.cpp
index 4466a460..d5cf1dc7 100644
--- a/src/corelib/text/qlocale.cpp
+++ b/src/corelib/text/qlocale.cpp
@@ -4,7 +4,7 @@
 
 #include "qglobal.h"
 
-#if (defined(QT_STATIC) || defined(QT_BOOTSTRAPPED)) && defined(Q_CC_GNU_ONLY) && Q_CC_GNU && __GNUC__ == 10
+#if (defined(QT_STATIC) || defined(QT_BOOTSTRAPPED)) && defined(Q_CC_GNU_ONLY) && Q_CC_GNU >= 1000
 QT_WARNING_DISABLE_GCC("-Wfree-nonheap-object") // false positive tracking
 #endif
 
@@ -79,7 +79,7 @@ static_assert(!ascii_isspace('\a'));
 static_assert(!ascii_isspace('a'));
 static_assert(!ascii_isspace('\177'));
 static_assert(!ascii_isspace(uchar('\200')));
-static_assert(!ascii_isspace(uchar('\xA0')));
+static_assert(!ascii_isspace(uchar('\xA0')));   // NBSP (is a space but Latin 1, not ASCII)
 static_assert(!ascii_isspace(uchar('\377')));
 
 /******************************************************************************
@@ -105,7 +105,7 @@ QLocale::Language QLocalePrivate::codeToLanguage(QStringView code,
     if (uc1 > 0x7F || uc2 > 0x7F || uc3 > 0x7F)
         return QLocale::AnyLanguage;
 
-    const AlphaCode codeBuf = { { char(uc1), char(uc2), char(uc3) } };
+    const AlphaCode codeBuf = { char(uc1), char(uc2), char(uc3) };
 
     auto searchCode = [codeBuf](auto f) {
         return std::find_if(languageCodeList.begin(), languageCodeList.end(),
@@ -201,27 +201,27 @@ QLocale::Territory QLocalePrivate::codeToTerritory(QStringView code) noexcept
     return QLocale::AnyTerritory;
 }
 
-QLatin1StringView QLocalePrivate::languageToCode(QLocale::Language language,
-                                                 QLocale::LanguageCodeTypes codeTypes)
+std::array<char, 4> QLocalePrivate::languageToCode(QLocale::Language language,
+                                                   QLocale::LanguageCodeTypes codeTypes)
 {
     if (language == QLocale::AnyLanguage || language > QLocale::LastLanguage)
         return {};
     if (language == QLocale::C)
-        return "C"_L1;
+        return {'C'};
 
     const LanguageCodeEntry &i = languageCodeList[language];
 
     if (codeTypes.testFlag(QLocale::ISO639Part1) && i.part1.isValid())
-        return {i.part1.code, 2};
+        return i.part1.decode();
 
     if (codeTypes.testFlag(QLocale::ISO639Part2B) && i.part2B.isValid())
-        return {i.part2B.code, 3};
+        return i.part2B.decode();
 
     if (codeTypes.testFlag(QLocale::ISO639Part2T) && i.part2T.isValid())
-        return {i.part2T.code, 3};
+        return i.part2T.decode();
 
     if (codeTypes.testFlag(QLocale::ISO639Part3))
-        return {i.part3.code, 3};
+        return i.part3.decode();
 
     return {};
 }
@@ -409,14 +409,14 @@ QByteArray QLocaleId::name(char separator) const
         return QByteArrayLiteral("C");
 
     const LanguageCodeEntry &language = languageCodeList[language_id];
-    const char *lang;
+    AlphaCode lang;
     qsizetype langLen;
 
     if (language.part1.isValid()) {
-        lang = language.part1.code;
+        lang = language.part1;
         langLen = 2;
     } else {
-        lang = language.part2B.isValid() ? language.part2B.code : language.part3.code;
+        lang = language.part2B.isValid() ? language.part2B : language.part3;
         langLen = 3;
     }
 
@@ -429,10 +429,12 @@ QByteArray QLocaleId::name(char separator) const
     QByteArray name(len, Qt::Uninitialized);
     char *uc = name.data();
 
-    *uc++ = lang[0];
-    *uc++ = lang[1];
+    auto langArray = lang.decode();
+
+    *uc++ = langArray[0];
+    *uc++ = langArray[1];
     if (langLen > 2)
-        *uc++ = lang[2];
+        *uc++ = langArray[2];
 
     if (script) {
         *uc++ = separator;
@@ -1341,37 +1343,32 @@ QLocale::Country QLocale::country() const
 
 QString QLocale::name() const
 {
+    const auto code = d->languageCode();
+    QLatin1StringView view{code.data()};
+
     Language l = language();
     if (l == C)
-        return d->languageCode();
+        return view;
 
     Territory c = territory();
     if (c == AnyTerritory)
-        return d->languageCode();
+        return view;
 
-    return d->languageCode() + u'_' + d->territoryCode();
-}
-
-static qlonglong toIntegral_helper(const QLocaleData *d, QStringView str, bool *ok,
-                                   QLocale::NumberOptions mode, qlonglong)
-{
-    return d->stringToLongLong(str, 10, ok, mode);
-}
-
-static qulonglong toIntegral_helper(const QLocaleData *d, QStringView str, bool *ok,
-                                    QLocale::NumberOptions mode, qulonglong)
-{
-    return d->stringToUnsLongLong(str, 10, ok, mode);
+    return view + u'_' + d->territoryCode();
 }
 
 template <typename T> static inline
 T toIntegral_helper(const QLocalePrivate *d, QStringView str, bool *ok)
 {
-    using Int64 =
-        typename std::conditional<std::is_unsigned<T>::value, qulonglong, qlonglong>::type;
+    constexpr bool isUnsigned = std::is_unsigned_v<T>;
+    using Int64 = typename std::conditional_t<isUnsigned, quint64, qint64>;
+
+    Int64 val = 0;
+    if constexpr (isUnsigned)
+        val = d->m_data->stringToUnsLongLong(str, 10, ok, d->m_numberOptions);
+    else
+        val = d->m_data->stringToLongLong(str, 10, ok, d->m_numberOptions);
 
-    // we select the right overload by the last, unused parameter
-    Int64 val = toIntegral_helper(d->m_data, str, ok, d->m_numberOptions, Int64());
     if (T(val) != val) {
         if (ok != nullptr)
             *ok = false;
@@ -1426,7 +1423,8 @@ QString QLocale::bcp47Name() const
 */
 QString QLocale::languageToCode(Language language, LanguageCodeTypes codeTypes)
 {
-    return QLocalePrivate::languageToCode(language, codeTypes);
+    const auto code = QLocalePrivate::languageToCode(language, codeTypes);
+    return QLatin1StringView{code.data()};
 }
 
 /*!
@@ -2527,7 +2525,14 @@ QDateTime QLocale::toDateTime(const QString &string, const QString &format, QCal
 /*!
     \since 4.1
 
-    Returns the decimal point character of this locale.
+    Returns the fractional part separator for this locale.
+
+    This is the token that separates the whole number part from the fracional
+    part in the representation of a number which has a fractional part. This is
+    commonly called the "decimal point character" - even though, in many
+    locales, it is not a "point" (or similar dot). It is (since Qt 6.0) returned
+    as a string in case some locale needs more than one UTF-16 code-point to
+    represent its separator.
 
     \sa groupSeparator(), toString()
 */
@@ -2539,7 +2544,14 @@ QString QLocale::decimalPoint() const
 /*!
     \since 4.1
 
-    Returns the group separator character of this locale.
+    Returns the digit-grouping separator for this locale.
+
+    This is a token used to break up long sequences of digits, in the
+    representation of a number, to make it easier to read. In some locales it
+    may be empty, indicating that digits should not be broken up into groups in
+    this way. In others it may be a spacing character. It is (since Qt 6.0)
+    returned as a string in case some locale needs more than one UTF-16
+    code-point to represent its separator.
 
     \sa decimalPoint(), toString()
 */
@@ -2551,7 +2563,12 @@ QString QLocale::groupSeparator() const
 /*!
     \since 4.1
 
-    Returns the percent character of this locale.
+    Returns the percent marker of this locale.
+
+    This is a token presumed to be appended to a number to indicate a
+    percentage. It is (since Qt 6.0) returned as a string because, in some
+    locales, it is not a single character - for example, because it includes a
+    text-direction-control character.
 
     \sa toString()
 */
@@ -2565,6 +2582,13 @@ QString QLocale::percent() const
 
     Returns the zero digit character of this locale.
 
+    This is a single Unicode character but may be encoded as a surrogate pair,
+    so is (since Qt 6.0) returned as a string. In most locales, other digits
+    follow it in Unicode ordering - however, some number systems, notably those
+    using U+3007 as zero, do not have contiguous digits. Use toString() to
+    obtain suitable representations of numbers, rather than trying to construct
+    them from this zero digit.
+
     \sa toString()
 */
 QString QLocale::zeroDigit() const
@@ -2575,7 +2599,12 @@ QString QLocale::zeroDigit() const
 /*!
     \since 4.1
 
-    Returns the negative sign character of this locale.
+    Returns the negative sign indicator of this locale.
+
+    This is a token presumed to be used as a prefix to a number to indicate that
+    it is negative. It is (since Qt 6.0) returned as a string because, in some
+    locales, it is not a single character - for example, because it includes a
+    text-direction-control character.
 
     \sa positiveSign(), toString()
 */
@@ -2587,7 +2616,12 @@ QString QLocale::negativeSign() const
 /*!
     \since 4.5
 
-    Returns the positive sign character of this locale.
+    Returns the positive sign indicator of this locale.
+
+    This is a token presumed to be used as a prefix to a number to indicate that
+    it is positive. It is (since Qt 6.0) returned as a string because, in some
+    locales, it is not a single character - for example, because it includes a
+    text-direction-control character.
 
     \sa negativeSign(), toString()
 */
@@ -2599,8 +2633,13 @@ QString QLocale::positiveSign() const
 /*!
     \since 4.1
 
-    Returns the exponential character of this locale, used to separate exponent
-    from mantissa in some floating-point numeric representations.
+    Returns the exponent separator for this locale.
+
+    This is a token used to separate mantissa from exponent in some
+    floating-point numeric representations. It is (since Qt 6.0) returned as a
+    string because, in some locales, it is not a single character - for example,
+    it may consist of a multiplication sign and a representation of the "ten to
+    the power" operator.
 
     \sa toString(double, char, int)
 */
@@ -2649,17 +2688,17 @@ QString QLocale::toString(double f, char format, int precision) const
     uint flags = isAsciiUpper(format) ? QLocaleData::CapitalEorX : 0;
 
     switch (QtMiscUtils::toAsciiLower(format)) {
-        case 'f':
-            form = QLocaleData::DFDecimal;
-            break;
-        case 'e':
-            form = QLocaleData::DFExponent;
-            break;
-        case 'g':
-            form = QLocaleData::DFSignificantDigits;
-            break;
-        default:
-            break;
+    case 'f':
+        form = QLocaleData::DFDecimal;
+        break;
+    case 'e':
+        form = QLocaleData::DFExponent;
+        break;
+    case 'g':
+        form = QLocaleData::DFSignificantDigits;
+        break;
+    default:
+        break;
     }
 
     if (!(d->m_numberOptions & OmitGroupSeparator))
@@ -2749,6 +2788,15 @@ QList<QLocale> QLocale::matchingLocales(QLocale::Language language, QLocale::Scr
         ++index;
     }
 
+    // Add current system locale, if it matches
+    const auto syslocaledata = systemData();
+
+    if (filter.acceptLanguage(syslocaledata->m_language_id)) {
+        const QLocaleId id = syslocaledata->id();
+        if (filter.acceptScriptTerritory(id))
+            result.append(QLocale::system());
+    }
+
     return result;
 }
 
@@ -3320,6 +3368,18 @@ QString QCalendarBackend::dateTimeToString(QStringView format, const QDateTime &
         day = parts.day;
     }
 
+    auto appendToResult = [&](int t, int repeat) {
+        auto data = locale.d->m_data;
+        if (repeat > 1)
+            result.append(data->longLongToString(t, -1, 10, repeat, QLocaleData::ZeroPadded));
+        else
+            result.append(data->longLongToString(t));
+    };
+
+    auto formatType = [](int repeat) {
+        return repeat == 3 ? QLocale::ShortFormat : QLocale::LongFormat;
+    };
+
     qsizetype i = 0;
     while (i < format.size()) {
         if (format.at(i).unicode() == '\'') {
@@ -3342,15 +3402,11 @@ QString QCalendarBackend::dateTimeToString(QStringView format, const QDateTime &
                     repeat = 2;
 
                 switch (repeat) {
-                case 4: {
-                    const int len = (year < 0) ? 5 : 4;
-                    result.append(locale.d->m_data->longLongToString(year, -1, 10, len,
-                                                                     QLocaleData::ZeroPadded));
+                case 4:
+                    appendToResult(year, (year < 0) ? 5 : 4);
                     break;
-                }
                 case 2:
-                    result.append(locale.d->m_data->longLongToString(year % 100, -1, 10, 2,
-                                                                     QLocaleData::ZeroPadded));
+                    appendToResult(year % 100, 2);
                     break;
                 default:
                     repeat = 1;
@@ -3362,43 +3418,20 @@ QString QCalendarBackend::dateTimeToString(QStringView format, const QDateTime &
             case 'M':
                 used = true;
                 repeat = qMin(repeat, 4);
-                switch (repeat) {
-                case 1:
-                    result.append(locale.d->m_data->longLongToString(month));
-                    break;
-                case 2:
-                    result.append(locale.d->m_data->longLongToString(month, -1, 10, 2,
-                                                                     QLocaleData::ZeroPadded));
-                    break;
-                case 3:
-                    result.append(monthName(locale, month, year, QLocale::ShortFormat));
-                    break;
-                case 4:
-                    result.append(monthName(locale, month, year, QLocale::LongFormat));
-                    break;
-                }
+                if (repeat <= 2)
+                    appendToResult(month, repeat);
+                else
+                    result.append(monthName(locale, month, year, formatType(repeat)));
                 break;
 
             case 'd':
                 used = true;
                 repeat = qMin(repeat, 4);
-                switch (repeat) {
-                case 1:
-                    result.append(locale.d->m_data->longLongToString(day));
-                    break;
-                case 2:
-                    result.append(locale.d->m_data->longLongToString(day, -1, 10, 2,
-                                                                     QLocaleData::ZeroPadded));
-                    break;
-                case 3:
-                    result.append(locale.dayName(
-                                      dayOfWeek(date.toJulianDay()), QLocale::ShortFormat));
-                    break;
-                case 4:
-                    result.append(locale.dayName(
-                                      dayOfWeek(date.toJulianDay()), QLocale::LongFormat));
-                    break;
-                }
+                if (repeat <= 2)
+                    appendToResult(day, repeat);
+                else
+                    result.append(
+                            locale.dayName(dayOfWeek(date.toJulianDay()), formatType(repeat)));
                 break;
 
             default:
@@ -3417,58 +3450,25 @@ QString QCalendarBackend::dateTimeToString(QStringView format, const QDateTime &
                     else if (hour == 0)
                         hour = 12;
                 }
-
-                switch (repeat) {
-                case 1:
-                    result.append(locale.d->m_data->longLongToString(hour));
-                    break;
-                case 2:
-                    result.append(locale.d->m_data->longLongToString(hour, -1, 10, 2,
-                                                                     QLocaleData::ZeroPadded));
-                    break;
-                }
+                appendToResult(hour, repeat);
                 break;
             }
             case 'H':
                 used = true;
                 repeat = qMin(repeat, 2);
-                switch (repeat) {
-                case 1:
-                    result.append(locale.d->m_data->longLongToString(time.hour()));
-                    break;
-                case 2:
-                    result.append(locale.d->m_data->longLongToString(time.hour(), -1, 10, 2,
-                                                                     QLocaleData::ZeroPadded));
-                    break;
-                }
+                appendToResult(time.hour(), repeat);
                 break;
 
             case 'm':
                 used = true;
                 repeat = qMin(repeat, 2);
-                switch (repeat) {
-                case 1:
-                    result.append(locale.d->m_data->longLongToString(time.minute()));
-                    break;
-                case 2:
-                    result.append(locale.d->m_data->longLongToString(time.minute(), -1, 10, 2,
-                                                                     QLocaleData::ZeroPadded));
-                    break;
-                }
+                appendToResult(time.minute(), repeat);
                 break;
 
             case 's':
                 used = true;
                 repeat = qMin(repeat, 2);
-                switch (repeat) {
-                case 1:
-                    result.append(locale.d->m_data->longLongToString(time.second()));
-                    break;
-                case 2:
-                    result.append(locale.d->m_data->longLongToString(time.second(), -1, 10, 2,
-                                                                     QLocaleData::ZeroPadded));
-                    break;
-                }
+                appendToResult(time.second(), repeat);
                 break;
 
             case 'A':
@@ -3493,8 +3493,7 @@ QString QCalendarBackend::dateTimeToString(QStringView format, const QDateTime &
 
                 // note: the millisecond component is treated like the decimal part of the seconds
                 // so ms == 2 is always printed as "002", but ms == 200 can be either "2" or "200"
-                result.append(locale.d->m_data->longLongToString(time.msec(), -1, 10, 3,
-                                                                 QLocaleData::ZeroPadded));
+                appendToResult(time.msec(), 3);
                 if (repeat != 3) {
                     if (result.endsWith(locale.zeroDigit()))
                         result.chop(1);
@@ -3587,8 +3586,7 @@ QString QLocaleData::doubleToString(double d, int precision, DoubleForm form,
 
         if (zero == u"0") {
             // No need to convert digits.
-            Q_ASSERT(std::all_of(buf.cbegin(), buf.cbegin() + length, [](char ch)
-                                 { return '0' <= ch && ch <= '9'; }));
+            Q_ASSERT(std::all_of(buf.cbegin(), buf.cbegin() + length, isAsciiDigit));
             // That check is taken care of in unicodeForDigits, below.
         } else if (zero.size() == 2 && zero.at(0).isHighSurrogate()) {
             const char32_t zeroUcs4 = QChar::surrogateToUcs4(zero.at(0), zero.at(1));
@@ -3614,76 +3612,73 @@ QString QLocaleData::doubleToString(double d, int precision, DoubleForm form,
         const bool groupDigits = flags & GroupDigits;
         const int minExponentDigits = flags & ZeroPadExponent ? 2 : 1;
         switch (form) {
-            case DFExponent:
-                numStr = exponentForm(std::move(digits), decpt, precision, PMDecimalDigits,
-                                      mustMarkDecimal, minExponentDigits);
-                break;
-            case DFDecimal:
-                numStr = decimalForm(std::move(digits), decpt, precision, PMDecimalDigits,
-                                     mustMarkDecimal, groupDigits);
-                break;
-            case DFSignificantDigits: {
-                PrecisionMode mode = (flags & AddTrailingZeroes) ?
-                            PMSignificantDigits : PMChopTrailingZeros;
+        case DFExponent:
+            numStr = exponentForm(std::move(digits), decpt, precision, PMDecimalDigits,
+                                  mustMarkDecimal, minExponentDigits);
+            break;
+        case DFDecimal:
+            numStr = decimalForm(std::move(digits), decpt, precision, PMDecimalDigits,
+                                 mustMarkDecimal, groupDigits);
+            break;
+        case DFSignificantDigits: {
+            PrecisionMode mode
+                = (flags & AddTrailingZeroes) ? PMSignificantDigits : PMChopTrailingZeros;
 
-                /* POSIX specifies sprintf() to follow fprintf(), whose 'g/G'
-                   format says; with P = 6 if precision unspecified else 1 if
-                   precision is 0 else precision; when 'e/E' would have exponent
-                   X, use:
-                     * 'f/F' if P > X >= -4, with precision P-1-X
-                     * 'e/E' otherwise, with precision P-1
-                   Helpfully, we already have mapped precision < 0 to 6 - except
-                   for F.P.Shortest mode, which is its own story - and those of
-                   our callers with unspecified precision either used 6 or -1
-                   for it.
-                */
-                bool useDecimal;
-                if (precision == QLocale::FloatingPointShortest) {
-                    // Find out which representation is shorter.
-                    // Set bias to everything added to exponent form but not
-                    // decimal, minus the converse.
+            /* POSIX specifies sprintf() to follow fprintf(), whose 'g/G' format
+               says; with P = 6 if precision unspecified else 1 if precision is
+               0 else precision; when 'e/E' would have exponent X, use:
+                 * 'f/F' if P > X >= -4, with precision P-1-X
+                 * 'e/E' otherwise, with precision P-1
+               Helpfully, we already have mapped precision < 0 to 6 - except for
+               F.P.Shortest mode, which is its own story - and those of our
+               callers with unspecified precision either used 6 or -1 for it.
+            */
+            bool useDecimal;
+            if (precision == QLocale::FloatingPointShortest) {
+                // Find out which representation is shorter.
+                // Set bias to everything added to exponent form but not
+                // decimal, minus the converse.
 
-                    // Exponent adds separator, sign and digits:
-                    int bias = 2 + minExponentDigits;
-                    // Decimal form may get grouping separators inserted:
-                    if (groupDigits && decpt >= m_grouping_top + m_grouping_least)
-                        bias -= (decpt - m_grouping_least) / m_grouping_higher + 1;
-                    // X = decpt - 1 needs two digits if decpt > 10:
-                    if (decpt > 10 && minExponentDigits == 1)
-                        ++bias;
-                    // Assume digitCount < 95, so we can ignore the 3-digit
-                    // exponent case (we'll set useDecimal false anyway).
+                // Exponent adds separator, sign and digits:
+                int bias = 2 + minExponentDigits;
+                // Decimal form may get grouping separators inserted:
+                if (groupDigits && decpt >= m_grouping_top + m_grouping_least)
+                    bias -= (decpt - m_grouping_least) / m_grouping_higher + 1;
+                // X = decpt - 1 needs two digits if decpt > 10:
+                if (decpt > 10 && minExponentDigits == 1)
+                    ++bias;
+                // Assume digitCount < 95, so we can ignore the 3-digit
+                // exponent case (we'll set useDecimal false anyway).
 
-                    const qsizetype digitCount = digits.size() / zero.size();
-                    if (!mustMarkDecimal) {
-                        // Decimal separator is skipped if at end; adjust if
-                        // that happens for only one form:
-                        if (digitCount <= decpt && digitCount > 1)
-                            ++bias; // decimal but not exponent
-                        else if (digitCount == 1 && decpt <= 0)
-                            --bias; // exponent but not decimal
-                    }
-                    // When 0 < decpt <= digitCount, the forms have equal digit
-                    // counts, plus things bias has taken into account;
-                    // otherwise decimal form's digit count is right-padded with
-                    // zeros to decpt, when decpt is positive, otherwise it's
-                    // left-padded with 1 - decpt zeros.
-                    useDecimal = (decpt <= 0 ? 1 - decpt <= bias
-                                  : decpt <= digitCount ? 0 <= bias
-                                  : decpt <= digitCount + bias);
-                } else {
-                    // X == decpt - 1, POSIX's P; -4 <= X < P iff -4 < decpt <= P
-                    Q_ASSERT(precision >= 0);
-                    useDecimal = decpt > -4 && decpt <= (precision ? precision : 1);
+                const qsizetype digitCount = digits.size() / zero.size();
+                if (!mustMarkDecimal) {
+                    // Decimal separator is skipped if at end; adjust if
+                    // that happens for only one form:
+                    if (digitCount <= decpt && digitCount > 1)
+                        ++bias; // decimal but not exponent
+                    else if (digitCount == 1 && decpt <= 0)
+                        --bias; // exponent but not decimal
                 }
-
-                numStr = useDecimal
-                    ? decimalForm(std::move(digits), decpt, precision, mode,
-                                  mustMarkDecimal, groupDigits)
-                    : exponentForm(std::move(digits), decpt, precision, mode,
-                                   mustMarkDecimal, minExponentDigits);
-                break;
+                // When 0 < decpt <= digitCount, the forms have equal digit
+                // counts, plus things bias has taken into account; otherwise
+                // decimal form's digit count is right-padded with zeros to
+                // decpt, when decpt is positive, otherwise it's left-padded
+                // with 1 - decpt zeros.
+                useDecimal = (decpt <= 0 ? 1 - decpt <= bias
+                              : decpt <= digitCount ? 0 <= bias : decpt <= digitCount + bias);
+            } else {
+                // X == decpt - 1, POSIX's P; -4 <= X < P iff -4 < decpt <= P
+                Q_ASSERT(precision >= 0);
+                useDecimal = decpt > -4 && decpt <= (precision ? precision : 1);
             }
+
+            numStr = useDecimal
+                ? decimalForm(std::move(digits), decpt, precision, mode,
+                              mustMarkDecimal, groupDigits)
+                : exponentForm(std::move(digits), decpt, precision, mode,
+                               mustMarkDecimal, minExponentDigits);
+            break;
+        }
         }
 
         // Pad with zeros. LeftAdjusted overrides ZeroPadded.
@@ -3875,10 +3870,226 @@ QString QLocaleData::applyIntegerFormatting(QString &&numStr, bool negative, int
     return result;
 }
 
+inline QLocaleData::NumericData QLocaleData::numericData(QLocaleData::NumberMode mode) const
+{
+    NumericData result;
+    if (this == c()) {
+        result.isC = true;
+        return result;
+    }
+    result.setZero(zero().viewData(single_character_data));
+    result.group = groupDelim().viewData(single_character_data);
+    // Note: minus, plus and exponent might not actually be single characters.
+    result.minus = minus().viewData(single_character_data);
+    result.plus = plus().viewData(single_character_data);
+    if (mode != IntegerMode)
+        result.decimal = decimalSeparator().viewData(single_character_data);
+    if (mode == DoubleScientificMode) {
+        result.exponent = exponential().viewData(single_character_data);
+        // exponentCyrillic means "apply the Cyrrilic-specific exponent hack"
+        result.exponentCyrillic = m_script_id == QLocale::CyrillicScript;
+    }
+#ifndef QT_NO_SYSTEMLOCALE
+    if (this == &systemLocaleData) {
+        const auto getString = [sys = systemLocale()](QSystemLocale::QueryType query) {
+            return sys->query(query).toString();
+        };
+        if (mode != IntegerMode) {
+            result.sysDecimal = getString(QSystemLocale::DecimalPoint);
+            if (result.sysDecimal.size())
+                result.decimal = QStringView{result.sysDecimal};
+        }
+        result.sysGroup = getString(QSystemLocale::GroupSeparator);
+        if (result.sysGroup.size())
+            result.group = QStringView{result.sysGroup};
+        result.sysMinus = getString(QSystemLocale::NegativeSign);
+        if (result.sysMinus.size())
+            result.minus = QStringView{result.sysMinus};
+        result.sysPlus = getString(QSystemLocale::PositiveSign);
+        if (result.sysPlus.size())
+            result.plus = QStringView{result.sysPlus};
+        result.setZero(getString(QSystemLocale::ZeroDigit));
+    }
+#endif
+
+    return result;
+}
+
+namespace {
+// A bit like QStringIterator but rather specialized ... and some of the tokens
+// it recognizes aren't single Unicode code-points (but it does map each to a
+// single character).
+class NumericTokenizer
+{
+    // TODO: use deterministic finite-state-automata.
+    // TODO QTBUG-95460: CLDR has Inf/NaN representations per locale.
+    static constexpr char lettersInfNaN[] = "afin"; // Letters of Inf, NaN
+    static constexpr auto matchInfNaN = QtPrivate::makeCharacterSetMatch<lettersInfNaN>();
+    const QStringView m_text;
+    const QLocaleData::NumericData m_guide;
+    qsizetype m_index = 0;
+    const QLocaleData::NumberMode m_mode;
+    static_assert('+' + 1 == ',' && ',' + 1 == '-' && '-' + 1 == '.');
+    char lastMark; // C locale accepts '+' through lastMark.
+public:
+    NumericTokenizer(QStringView text, QLocaleData::NumericData &&guide,
+                     QLocaleData::NumberMode mode)
+        : m_text(text), m_guide(guide), m_mode(mode),
+          lastMark(mode == QLocaleData::IntegerMode ? '-' : '.')
+    {
+        Q_ASSERT(m_guide.isValid(mode));
+    }
+    bool done() const { return !(m_index < m_text.size()); }
+    qsizetype index() const { return m_index; }
+    inline int asBmpDigit(char16_t digit) const;
+    char nextToken();
+};
+
+int NumericTokenizer::asBmpDigit(char16_t digit) const
+{
+    // If digit *is* a digit, result will be in range 0 through 9; otherwise not.
+    // Must match qlocale_tools.h's unicodeForDigit()
+    if (m_guide.zeroUcs != u'\u3007' || digit == m_guide.zeroUcs)
+        return digit - m_guide.zeroUcs;
+
+    // QTBUG-85409: Suzhou's digits aren't contiguous !
+    if (digit == u'\u3020') // U+3020 POSTAL MARK FACE is not a digit.
+        return -1;
+    // ... but is followed by digits 1 through 9.
+    return digit - u'\u3020';
+}
+
+char NumericTokenizer::nextToken()
+{
+    // As long as caller stops iterating on a zero return, those don't need to
+    // keep m_index correctly updated.
+    Q_ASSERT(!done());
+    // Mauls non-letters above 'Z' but we don't care:
+    const auto asciiLower = [](unsigned char c) { return c >= 'A' ? c | 0x20 : c; };
+    const QStringView tail = m_text.sliced(m_index);
+    const QChar ch = tail.front();
+    if (ch == u'\u2212') {
+        // Special case: match the "proper" minus sign, for all locales.
+        ++m_index;
+        return '-';
+    }
+    if (m_guide.isC) {
+        // "Conversion" to C locale is just a filter:
+        ++m_index;
+        if (Q_LIKELY(ch.unicode() < 256)) {
+            unsigned char ascii = asciiLower(ch.toLatin1());
+            if (Q_LIKELY(isAsciiDigit(ascii) || ('+' <= ascii && ascii <= lastMark)
+                         // No caller presently (6.5) passes DoubleStandardMode,
+                         // so !IntegerMode implies scientific, for now.
+                         || (m_mode != QLocaleData::IntegerMode
+                             && matchInfNaN.matches(ascii))
+                         || (m_mode == QLocaleData::DoubleScientificMode
+                             && ascii == 'e'))) {
+                return ascii;
+            }
+        }
+        return 0;
+    }
+    if (ch.unicode() < 256) {
+        // Accept the C locale's digits and signs in all locales:
+        char ascii = asciiLower(ch.toLatin1());
+        if (isAsciiDigit(ascii) || ascii == '-' || ascii == '+'
+            // Also its Inf and NaN letters:
+            || (m_mode != QLocaleData::IntegerMode && matchInfNaN.matches(ascii))) {
+            ++m_index;
+            return ascii;
+        }
+    }
+
+    // Other locales may be trickier:
+    if (tail.startsWith(m_guide.minus)) {
+        m_index += m_guide.minus.size();
+        return '-';
+    }
+    if (tail.startsWith(m_guide.plus)) {
+        m_index += m_guide.plus.size();
+        return '+';
+    }
+    if (!m_guide.group.isEmpty() && tail.startsWith(m_guide.group)) {
+        m_index += m_guide.group.size();
+        return ',';
+    }
+    if (m_mode != QLocaleData::IntegerMode && tail.startsWith(m_guide.decimal)) {
+        m_index += m_guide.decimal.size();
+        return '.';
+    }
+    if (m_mode == QLocaleData::DoubleScientificMode
+        && tail.startsWith(m_guide.exponent, Qt::CaseInsensitive)) {
+        m_index += m_guide.exponent.size();
+        return 'e';
+    }
+
+    // Must match qlocale_tools.h's unicodeForDigit()
+    if (m_guide.zeroLen == 1) {
+        if (!ch.isSurrogate()) {
+            const uint gap = asBmpDigit(ch.unicode());
+            if (gap < 10u) {
+                ++m_index;
+                return '0' + gap;
+            }
+        } else if (ch.isHighSurrogate() && tail.size() > 1 && tail.at(1).isLowSurrogate()) {
+            return 0;
+        }
+    } else if (ch.isHighSurrogate()) {
+        // None of the corner cases below matches a surrogate, so (update
+        // already and) return early if we don't have a digit.
+        if (tail.size() > 1) {
+            QChar low = tail.at(1);
+            if (low.isLowSurrogate()) {
+                m_index += 2;
+                const uint gap = QChar::surrogateToUcs4(ch, low) - m_guide.zeroUcs;
+                return gap < 10u ? '0' + gap : 0;
+            }
+        }
+        return 0;
+    }
+
+    // All cases where tail starts with properly-matched surrogate pair
+    // have been handled by this point.
+    Q_ASSERT(!(ch.isHighSurrogate() && tail.size() > 1 && tail.at(1).isLowSurrogate()));
+
+    // Weird corner cases follow (code above assumes these match no surrogates).
+
+    // Some locales use a non-breaking space (U+00A0) or its thin version
+    // (U+202f) for grouping. These look like spaces, so people (and thus some
+    // of our tests) use a regular space instead and complain if it doesn't
+    // work.
+    // Should this be extended generally to any case where group is a space ?
+    if ((m_guide.group == u"\u00a0" || m_guide.group == u"\u202f") && tail.startsWith(u' ')) {
+        ++m_index;
+        return ',';
+    }
+
+    // Cyrillic has its own E, used by Ukrainian as exponent; but others
+    // writing Cyrillic may well use that; and Ukrainians might well use E.
+    // All other Cyrillic locales (officially) use plain ASCII E.
+    if (m_guide.exponentCyrillic // Only true in scientific float mode.
+        && (tail.startsWith(u"\u0415", Qt::CaseInsensitive)
+            || tail.startsWith(u"E", Qt::CaseInsensitive))) {
+        ++m_index;
+        return 'e';
+    }
+
+    return 0;
+}
+} // namespace with no name
+
 /*
-    Converts a number in locale to its representation in the C locale.
-    Only has to guarantee that a string that is a correct representation of
-    a number will be converted.
+    Converts a number in locale representation to the C locale equivalent.
+
+    Only has to guarantee that a string that is a correct representation of a
+    number will be converted. Checks signs, separators and digits appear in all
+    the places they should, and nowhere else.
+
+    Returns true precisely if the number appears to be well-formed, modulo
+    things a parser for C Locale strings (without digit-grouping separators;
+    they're stripped) will catch. When it returns true, it records (and
+    '\0'-terminates) the C locale representation in *result.
 
     Note: only QString integer-parsing methods have a base parameter (hence need
     to cope with letters as possible digits); but these are now all routed via
@@ -3887,15 +4098,12 @@ QString QLocaleData::applyIntegerFormatting(QString &&numStr, bool negative, int
     other than 0 through 9.
 */
 bool QLocaleData::numberToCLocale(QStringView s, QLocale::NumberOptions number_options,
-                                  CharBuff *result) const
+                                  NumberMode mode, CharBuff *result) const
 {
     s = s.trimmed();
     if (s.size() < 1)
         return false;
-
-    const QChar *uc = s.data();
-    auto length = s.size();
-    decltype(length) idx = 0;
+    NumericTokenizer tokens(s, numericData(mode), mode);
 
     // Digit-grouping details (all modes):
     qsizetype digitsInGroup = 0;
@@ -3907,21 +4115,14 @@ bool QLocaleData::numberToCLocale(QStringView s, QLocale::NumberOptions number_o
     qsizetype exponent_idx = -1;
 
     char last = '\0';
-    while (idx < length) {
-        const QStringView in = QStringView(uc + idx, uc[idx].isHighSurrogate() ? 2 : 1);
+    while (!tokens.done()) {
+        qsizetype idx = tokens.index(); // before nextToken() advances
+        char out = tokens.nextToken();
+        if (out == 0)
+            return false;
+        Q_ASSERT(tokens.index() > idx); // it always *should* advance (except on zero return)
 
-        char out = numericToCLocale(in);
-        if (out == 0) {
-            // Allow ASCII letters of inf, nan:
-            if (in.size() != 1)
-                return false;
-            char16_t ch = in.front().unicode();
-            if (ch > 'n')
-                return false;
-            out = int(ch | 0x20); // tolower(), when ch is a letter
-            if (out != 'a' && out != 'f' && out != 'i' && out != 'n')
-                return false;
-        } else if (out == '.') {
+        if (out == '.') {
             // Fail if more than one decimal point or point after e
             if (decpt_idx != -1 || exponent_idx != -1)
                 return false;
@@ -3930,24 +4131,23 @@ bool QLocaleData::numberToCLocale(QStringView s, QLocale::NumberOptions number_o
             exponent_idx = idx;
         }
 
-        if (number_options.testFlag(QLocale::RejectLeadingZeroInExponent)) {
-            if (exponent_idx != -1 && out == '0' && idx < length - 1) {
-                // After the exponent there can only be '+', '-' or digits.
-                // If we find a '0' directly after some non-digit, then that is a leading zero.
-                if (last < '0' || last > '9')
-                    return false;
-            }
+        if (number_options.testFlag(QLocale::RejectLeadingZeroInExponent)
+                && exponent_idx != -1 && out == '0') {
+            // After the exponent there can only be '+', '-' or digits.
+            // If we find a '0' directly after some non-digit, then that is a
+            // leading zero, acceptable only if it is the whole exponent.
+            if (!tokens.done() && !isAsciiDigit(last))
+                return false;
         }
 
-        if (number_options.testFlag(QLocale::RejectTrailingZeroesAfterDot)) {
-            // If we've seen a decimal point and the last character after the exponent is 0, then
-            // that is a trailing zero.
-            if (decpt_idx >= 0 && idx == exponent_idx && last == '0')
-                    return false;
+        if (number_options.testFlag(QLocale::RejectTrailingZeroesAfterDot) && decpt_idx >= 0) {
+            // In a fractional part, a 0 just before the exponent is trailing:
+            if (idx == exponent_idx && last == '0')
+                return false;
         }
 
         if (!number_options.testFlag(QLocale::RejectGroupSeparator)) {
-            if (out >= '0' && out <= '9') {
+            if (isAsciiDigit(out)) {
                 if (start_of_digits_idx == -1)
                     start_of_digits_idx = idx;
                 ++digitsInGroup;
@@ -3970,12 +4170,11 @@ bool QLocaleData::numberToCLocale(QStringView s, QLocale::NumberOptions number_o
 
                 last_separator_idx = idx;
                 digitsInGroup = 0;
-            } else if (out == '.' || idx == exponent_idx) {
-                // Were there enough digits since the last separator?
-                if (last_separator_idx != -1 && digitsInGroup != m_grouping_least)
+            } else if (mode != IntegerMode && (out == '.' || idx == exponent_idx)
+                       && last_separator_idx != -1) {
+                // Were there enough digits since the last group separator?
+                if (digitsInGroup != m_grouping_least)
                     return false;
-                // If we saw no separator, should we fail if
-                // digitsInGroup > m_grouping_top + m_grouping_least ?
 
                 // stop processing separators
                 last_separator_idx = -1;
@@ -3987,29 +4186,23 @@ bool QLocaleData::numberToCLocale(QStringView s, QLocale::NumberOptions number_o
         last = out;
         if (out != ',') // Leave group separators out of the result.
             result->append(out);
-        idx += in.size();
     }
 
-    if (!number_options.testFlag(QLocale::RejectGroupSeparator)) {
-        // group separator post-processing
-        // did we end in a separator?
-        if (last_separator_idx + 1 == idx)
+    if (!number_options.testFlag(QLocale::RejectGroupSeparator) && last_separator_idx != -1) {
+        // Were there enough digits since the last group separator?
+        if (digitsInGroup != m_grouping_least)
             return false;
-        // Were there enough digits since the last separator?
-        if (last_separator_idx != -1 && digitsInGroup != m_grouping_least)
-            return false;
-        // If we saw no separator, and no decimal point, should we fail if
-        // digitsInGroup > m_grouping_top + m_grouping_least ?
     }
 
-    if (number_options.testFlag(QLocale::RejectTrailingZeroesAfterDot)) {
-        // In decimal form, the last character can be a trailing zero if we've seen a decpt.
-        if (decpt_idx != -1 && exponent_idx == -1 && last == '0')
+    if (number_options.testFlag(QLocale::RejectTrailingZeroesAfterDot)
+            && decpt_idx != -1 && exponent_idx == -1) {
+        // In the fractional part, a final zero is trailing:
+        if (last == '0')
             return false;
     }
 
     result->append('\0');
-    return idx == length;
+    return true;
 }
 
 bool QLocaleData::validateChars(QStringView str, NumberMode numMode, QByteArray *buff,
@@ -4020,11 +4213,11 @@ bool QLocaleData::validateChars(QStringView str, NumberMode numMode, QByteArray
 
     enum { Whole, Fractional, Exponent } state = Whole;
     const bool scientific = numMode == DoubleScientificMode;
+    NumericTokenizer tokens(str, numericData(numMode), numMode);
     char last = '\0';
 
-    for (qsizetype i = 0; i < str.size();) {
-        const QStringView in = str.mid(i, str.at(i).isHighSurrogate() ? 2 : 1);
-        char c = numericToCLocale(in);
+    while (!tokens.done()) {
+        char c = tokens.nextToken();
 
         if (isAsciiDigit(c)) {
             switch (state) {
@@ -4037,7 +4230,7 @@ bool QLocaleData::validateChars(QStringView str, NumberMode numMode, QByteArray
                     return false;
                 break;
             case Exponent:
-                if (last < '0' || last > '9') {
+                if (!isAsciiDigit(last)) {
                     // This is the first digit in the exponent (there may have beena '+'
                     // or '-' in before). If it's a zero, the exponent is zero-padded.
                     if (c == '0' && (number_options & QLocale::RejectLeadingZeroInExponent))
@@ -4048,54 +4241,54 @@ bool QLocaleData::validateChars(QStringView str, NumberMode numMode, QByteArray
 
         } else {
             switch (c) {
-                case '.':
-                    // If an integer has a decimal point, it is Invalid.
-                    // A double can only have one, at the end of its whole-number part.
-                    if (numMode == IntegerMode || state != Whole)
-                        return false;
-                    // Even when decDigits is 0, we do allow the decimal point to be
-                    // present - just as long as no digits follow it.
-
-                    state = Fractional;
-                    break;
-
-                case '+':
-                case '-':
-                    // A sign can only appear at the start or after the e of scientific:
-                    if (last != '\0' && !(scientific && last == 'e'))
-                        return false;
-                    break;
-
-                case ',':
-                    // Grouping is only allowed after a digit in the whole-number portion:
-                    if ((number_options & QLocale::RejectGroupSeparator) || state != Whole
-                        || last < '0' || last > '9') {
-                        return false;
-                    }
-                    // We could check grouping sizes are correct, but fixup()s are
-                    // probably better off correcting any misplacement instead.
-                    break;
-
-                case 'e':
-                    // Only one e is allowed and only in scientific:
-                    if (!scientific || state == Exponent)
-                        return false;
-                    state = Exponent;
-                    break;
-
-                default:
-                    // Nothing else can validly appear in a number.
-                    // In fact, numericToCLocale() must have returned 0. If anyone changes
-                    // it to return something else, we probably need to handle it here !
-                    Q_ASSERT(!c);
+            case '.':
+                // If an integer has a decimal point, it is Invalid.
+                // A double can only have one, at the end of its whole-number part.
+                if (numMode == IntegerMode || state != Whole)
                     return false;
+                // Even when decDigits is 0, we do allow the decimal point to be
+                // present - just as long as no digits follow it.
+
+                state = Fractional;
+                break;
+
+            case '+':
+            case '-':
+                // A sign can only appear at the start or after the e of scientific:
+                if (last != '\0' && !(scientific && last == 'e'))
+                    return false;
+                break;
+
+            case ',':
+                // Grouping is only allowed after a digit in the whole-number portion:
+                if ((number_options & QLocale::RejectGroupSeparator) || state != Whole
+                        || !isAsciiDigit(last)) {
+                    return false;
+                }
+                // We could check grouping sizes are correct, but fixup()s are
+                // probably better off correcting any misplacement instead.
+                break;
+
+            case 'e':
+                // Only one e is allowed and only in scientific:
+                if (!scientific || state == Exponent)
+                    return false;
+                state = Exponent;
+                break;
+
+            default:
+                // Nothing else can validly appear in a number.
+                // NumericTokenizer allows letters of "inf" and "nan", but
+                // validators don't accept those values.
+                // For anything else, tokens.nextToken() must have returned 0.
+                Q_ASSERT(!c || c == 'a' || c == 'f' || c == 'i' || c == 'n');
+                return false;
             }
         }
 
         last = c;
         if (c != ',') // Skip grouping
             buff->append(c);
-        i += in.size();
     }
 
     return true;
@@ -4105,7 +4298,7 @@ double QLocaleData::stringToDouble(QStringView str, bool *ok,
                                    QLocale::NumberOptions number_options) const
 {
     CharBuff buff;
-    if (!numberToCLocale(str, number_options, &buff)) {
+    if (!numberToCLocale(str, number_options, DoubleScientificMode, &buff)) {
         if (ok != nullptr)
             *ok = false;
         return 0.0;
@@ -4120,7 +4313,7 @@ qlonglong QLocaleData::stringToLongLong(QStringView str, int base, bool *ok,
                                         QLocale::NumberOptions number_options) const
 {
     CharBuff buff;
-    if (!numberToCLocale(str, number_options, &buff)) {
+    if (!numberToCLocale(str, number_options, IntegerMode, &buff)) {
         if (ok != nullptr)
             *ok = false;
         return 0;
@@ -4133,7 +4326,7 @@ qulonglong QLocaleData::stringToUnsLongLong(QStringView str, int base, bool *ok,
                                             QLocale::NumberOptions number_options) const
 {
     CharBuff buff;
-    if (!numberToCLocale(str, number_options, &buff)) {
+    if (!numberToCLocale(str, number_options, IntegerMode, &buff)) {
         if (ok != nullptr)
             *ok = false;
         return 0;
@@ -4142,57 +4335,40 @@ qulonglong QLocaleData::stringToUnsLongLong(QStringView str, int base, bool *ok,
     return bytearrayToUnsLongLong(QByteArrayView(buff.constData(), buff.size()), base, ok);
 }
 
-qlonglong QLocaleData::bytearrayToLongLong(QByteArrayView num, int base, bool *ok)
+static bool checkParsed(QByteArrayView num, qsizetype used)
 {
-    const qsizetype len = num.size();
-    auto [l, used] = qstrntoll(num.data(), len, base);
-    if (used <= 0) {
-        if (ok != nullptr)
-            *ok = false;
-        return 0;
-    }
+    if (used <= 0)
+        return false;
 
+    const qsizetype len = num.size();
     if (used < len && num[used] != '\0') {
         while (used < len && ascii_isspace(num[used]))
             ++used;
     }
 
-    if (used < len && num[used] != '\0') {
+    if (used < len && num[used] != '\0')
         // we stopped at a non-digit character after converting some digits
-        if (ok != nullptr)
-            *ok = false;
-        return 0;
-    }
+        return false;
 
-    if (ok != nullptr)
-        *ok = true;
-    return l;
+    return true;
+}
+
+qlonglong QLocaleData::bytearrayToLongLong(QByteArrayView num, int base, bool *ok)
+{
+    auto r = qstrntoll(num.data(), num.size(), base);
+    const bool parsed = checkParsed(num, r.used);
+    if (ok)
+        *ok = parsed;
+    return parsed ? r.result : 0;
 }
 
 qulonglong QLocaleData::bytearrayToUnsLongLong(QByteArrayView num, int base, bool *ok)
 {
-    const qsizetype len = num.size();
-    auto [l, used] = qstrntoull(num.data(), len, base);
-    if (used <= 0) {
-        if (ok != nullptr)
-            *ok = false;
-        return 0;
-    }
-
-    if (used < len && num[used] != '\0') {
-        while (used < len && ascii_isspace(num[used]))
-            ++used;
-    }
-
-    if (used < len && num[used] != '\0') {
-        if (ok != nullptr)
-            *ok = false;
-        return 0;
-    }
-
-    if (ok != nullptr)
-        *ok = true;
-    return l;
+    auto r = qstrntoull(num.data(), num.size(), base);
+    const bool parsed = checkParsed(num, r.used);
+    if (ok)
+        *ok = parsed;
+    return parsed ? r.result : 0;
 }
 
 /*!
@@ -4530,7 +4706,7 @@ QLocale QLocale::collation() const
     \since 4.8
 
     Returns a native name of the language for the locale. For example
-    "Schwiizertüütsch" for Swiss-German locale.
+    "Schweizer Hochdeutsch" for the Swiss-German locale.
 
     \sa nativeTerritoryName(), languageToString()
 */
diff --git a/src/corelib/text/qlocale.qdoc b/src/corelib/text/qlocale.qdoc
index d86018e1..ece94c67 100644
--- a/src/corelib/text/qlocale.qdoc
+++ b/src/corelib/text/qlocale.qdoc
@@ -116,7 +116,7 @@
     \value Azerbaijani
     \value Bafia
     \value [since 5.1] Balinese
-    \value [since 6.5.3] Baluchi
+    \value [since 6.6] Baluchi
     \value Bambara
     \value [since 5.1] Bamun
     \value [since 6.0] Bangla
@@ -262,7 +262,7 @@
     \value [since 5.5] Lezghian
     \value Limburgish
     \value Lingala
-    \value [since 6.5.3] Ligurian
+    \value [since 6.6] Ligurian
     \value [since 5.7] LiteraryChinese
     \value Lithuanian
     \value [since 5.12] Lojban
@@ -348,7 +348,7 @@
     \value Quechua
     \value [since 6.5] Rajasthani
     \value RhaetoRomance Obsolete, please use Romansh
-    \value [since 6.5.3] Rohingya
+    \value [since 6.6] Rohingya
     \value Romanian
     \value Romansh
     \value Rombo
@@ -411,7 +411,7 @@
     \value [since 6.5] TokiPona
     \value [since 5.7] TokPisin
     \value Tongan
-    \value [since 6.5.3] Torwali
+    \value [since 6.6] Torwali
     \value Tsonga
     \value Tswana
     \value Turkish
@@ -818,7 +818,7 @@
     \value GujaratiScript
     \value GurmukhiScript
     \value [since 5.1] HangulScript
-    \value [since 6.5.3] HanifiScript
+    \value [since 6.6] HanifiScript
     \value [since 5.1] HanScript
     \value [since 5.1] HanunooScript
     \value [since 5.7] HanWithBopomofoScript
diff --git a/src/corelib/text/qlocale_data_p.h b/src/corelib/text/qlocale_data_p.h
index 5ea4c090..af28622c 100644
--- a/src/corelib/text/qlocale_data_p.h
+++ b/src/corelib/text/qlocale_data_p.h
@@ -41,14 +41,27 @@ static constexpr TerritoryLanguage ImperialMeasurementSystems[] = {
 /*
   Storage for alpha codes with length of up to 4 allowing efficient comparison.
 */
-struct alignas(uint32_t) AlphaCode {
-    char code[4];
+struct AlphaCode {
+    constexpr AlphaCode(char c1 = 0, char c2 = 0, char c3 = 0)
+        : c1(c2m(c1)), c2(c2m(c2)), c3(c2m(c3)), reserved(0) { }
+
+    uint16_t c1: 5, c2:5, c3: 5, reserved:1;
+
+    bool isValid() const noexcept { return c1 != 0; }
+
+    std::array<char, 4> decode() const { return {m2c(c1), m2c(c2), m2c(c3), 0}; }
 
-    bool isValid() const noexcept { return asU32() != 0; }
 private:
+    static constexpr uint16_t c2m(char c) { return c ? c - 'a' + 1 : 0; }
+    static constexpr char m2c (uint16_t c) { return c ? c + 'a' - 1 : 0; }
+
     friend bool operator==(AlphaCode lhs, AlphaCode rhs) noexcept
-    { return lhs.asU32() == rhs.asU32(); }
-    uint32_t asU32() const noexcept { return qFromUnaligned<uint32_t>(code); }
+    {
+        static_assert(std::has_unique_object_representations_v<AlphaCode>,
+            "memcmp() cannot be used to implement equality on "
+            "types that don't have unique object representations");
+        return std::memcmp(&lhs, &rhs, sizeof(lhs)) == 0;
+    }
 };
 
 struct LanguageCodeEntry {
@@ -61,7 +74,7 @@ struct LanguageCodeEntry {
 // GENERATED PART STARTS HERE
 
 /*
-    This part of the file was generated on 2023-08-03 from the
+    This part of the file was generated on 2023-07-27 from the
     Common Locale Data Repository v43
 
     http://www.unicode.org/cldr/
@@ -5782,347 +5795,347 @@ static constexpr quint16 territory_name_index[] = {
 };
 
 constexpr std::array<LanguageCodeEntry, 341> languageCodeList {
-    LanguageCodeEntry {{},           {{'u', 'n', 'd'}}, {{'u', 'n', 'd'}}, {{'u', 'n', 'd'}}}, // AnyLanguage
-    LanguageCodeEntry {{},           {{'u', 'n', 'd'}}, {{'u', 'n', 'd'}}, {{'u', 'n', 'd'}}}, // C
-    LanguageCodeEntry {{{'a', 'b'}}, {{'a', 'b', 'k'}}, {{'a', 'b', 'k'}}, {{'a', 'b', 'k'}}}, // Abkhazian
-    LanguageCodeEntry {{{'a', 'a'}}, {{'a', 'a', 'r'}}, {{'a', 'a', 'r'}}, {{'a', 'a', 'r'}}}, // Afar
-    LanguageCodeEntry {{{'a', 'f'}}, {{'a', 'f', 'r'}}, {{'a', 'f', 'r'}}, {{'a', 'f', 'r'}}}, // Afrikaans
-    LanguageCodeEntry {{},           {},                {},                {{'a', 'g', 'q'}}}, // Aghem
-    LanguageCodeEntry {{{'a', 'k'}}, {{'a', 'k', 'a'}}, {{'a', 'k', 'a'}}, {{'a', 'k', 'a'}}}, // Akan
-    LanguageCodeEntry {{},           {{'a', 'k', 'k'}}, {{'a', 'k', 'k'}}, {{'a', 'k', 'k'}}}, // Akkadian
-    LanguageCodeEntry {{},           {},                {},                {{'b', 's', 's'}}}, // Akoose
-    LanguageCodeEntry {{{'s', 'q'}}, {{'a', 'l', 'b'}}, {{'s', 'q', 'i'}}, {{'s', 'q', 'i'}}}, // Albanian
-    LanguageCodeEntry {{},           {},                {},                {{'a', 's', 'e'}}}, // American Sign Language
-    LanguageCodeEntry {{{'a', 'm'}}, {{'a', 'm', 'h'}}, {{'a', 'm', 'h'}}, {{'a', 'm', 'h'}}}, // Amharic
-    LanguageCodeEntry {{},           {{'e', 'g', 'y'}}, {{'e', 'g', 'y'}}, {{'e', 'g', 'y'}}}, // Ancient Egyptian
-    LanguageCodeEntry {{},           {{'g', 'r', 'c'}}, {{'g', 'r', 'c'}}, {{'g', 'r', 'c'}}}, // Ancient Greek
-    LanguageCodeEntry {{{'a', 'r'}}, {{'a', 'r', 'a'}}, {{'a', 'r', 'a'}}, {{'a', 'r', 'a'}}}, // Arabic
-    LanguageCodeEntry {{{'a', 'n'}}, {{'a', 'r', 'g'}}, {{'a', 'r', 'g'}}, {{'a', 'r', 'g'}}}, // Aragonese
-    LanguageCodeEntry {{},           {{'a', 'r', 'c'}}, {{'a', 'r', 'c'}}, {{'a', 'r', 'c'}}}, // Aramaic
-    LanguageCodeEntry {{{'h', 'y'}}, {{'a', 'r', 'm'}}, {{'h', 'y', 'e'}}, {{'h', 'y', 'e'}}}, // Armenian
-    LanguageCodeEntry {{{'a', 's'}}, {{'a', 's', 'm'}}, {{'a', 's', 'm'}}, {{'a', 's', 'm'}}}, // Assamese
-    LanguageCodeEntry {{},           {{'a', 's', 't'}}, {{'a', 's', 't'}}, {{'a', 's', 't'}}}, // Asturian
-    LanguageCodeEntry {{},           {},                {},                {{'a', 's', 'a'}}}, // Asu
-    LanguageCodeEntry {{},           {},                {},                {{'c', 'c', 'h'}}}, // Atsam
-    LanguageCodeEntry {{{'a', 'v'}}, {{'a', 'v', 'a'}}, {{'a', 'v', 'a'}}, {{'a', 'v', 'a'}}}, // Avaric
-    LanguageCodeEntry {{{'a', 'e'}}, {{'a', 'v', 'e'}}, {{'a', 'v', 'e'}}, {{'a', 'v', 'e'}}}, // Avestan
-    LanguageCodeEntry {{{'a', 'y'}}, {{'a', 'y', 'm'}}, {{'a', 'y', 'm'}}, {{'a', 'y', 'm'}}}, // Aymara
-    LanguageCodeEntry {{{'a', 'z'}}, {{'a', 'z', 'e'}}, {{'a', 'z', 'e'}}, {{'a', 'z', 'e'}}}, // Azerbaijani
-    LanguageCodeEntry {{},           {},                {},                {{'k', 's', 'f'}}}, // Bafia
-    LanguageCodeEntry {{},           {{'b', 'a', 'n'}}, {{'b', 'a', 'n'}}, {{'b', 'a', 'n'}}}, // Balinese
-    LanguageCodeEntry {{{'b', 'm'}}, {{'b', 'a', 'm'}}, {{'b', 'a', 'm'}}, {{'b', 'a', 'm'}}}, // Bambara
-    LanguageCodeEntry {{},           {},                {},                {{'b', 'a', 'x'}}}, // Bamun
-    LanguageCodeEntry {{{'b', 'n'}}, {{'b', 'e', 'n'}}, {{'b', 'e', 'n'}}, {{'b', 'e', 'n'}}}, // Bangla
-    LanguageCodeEntry {{},           {{'b', 'a', 's'}}, {{'b', 'a', 's'}}, {{'b', 'a', 's'}}}, // Basaa
-    LanguageCodeEntry {{{'b', 'a'}}, {{'b', 'a', 'k'}}, {{'b', 'a', 'k'}}, {{'b', 'a', 'k'}}}, // Bashkir
-    LanguageCodeEntry {{{'e', 'u'}}, {{'b', 'a', 'q'}}, {{'e', 'u', 's'}}, {{'e', 'u', 's'}}}, // Basque
-    LanguageCodeEntry {{},           {},                {},                {{'b', 'b', 'c'}}}, // Batak Toba
-    LanguageCodeEntry {{{'b', 'e'}}, {{'b', 'e', 'l'}}, {{'b', 'e', 'l'}}, {{'b', 'e', 'l'}}}, // Belarusian
-    LanguageCodeEntry {{},           {{'b', 'e', 'm'}}, {{'b', 'e', 'm'}}, {{'b', 'e', 'm'}}}, // Bemba
-    LanguageCodeEntry {{},           {},                {},                {{'b', 'e', 'z'}}}, // Bena
-    LanguageCodeEntry {{},           {{'b', 'h', 'o'}}, {{'b', 'h', 'o'}}, {{'b', 'h', 'o'}}}, // Bhojpuri
-    LanguageCodeEntry {{{'b', 'i'}}, {{'b', 'i', 's'}}, {{'b', 'i', 's'}}, {{'b', 'i', 's'}}}, // Bislama
-    LanguageCodeEntry {{},           {{'b', 'y', 'n'}}, {{'b', 'y', 'n'}}, {{'b', 'y', 'n'}}}, // Blin
-    LanguageCodeEntry {{},           {},                {},                {{'b', 'r', 'x'}}}, // Bodo
-    LanguageCodeEntry {{{'b', 's'}}, {{'b', 'o', 's'}}, {{'b', 'o', 's'}}, {{'b', 'o', 's'}}}, // Bosnian
-    LanguageCodeEntry {{{'b', 'r'}}, {{'b', 'r', 'e'}}, {{'b', 'r', 'e'}}, {{'b', 'r', 'e'}}}, // Breton
-    LanguageCodeEntry {{},           {{'b', 'u', 'g'}}, {{'b', 'u', 'g'}}, {{'b', 'u', 'g'}}}, // Buginese
-    LanguageCodeEntry {{{'b', 'g'}}, {{'b', 'u', 'l'}}, {{'b', 'u', 'l'}}, {{'b', 'u', 'l'}}}, // Bulgarian
-    LanguageCodeEntry {{{'m', 'y'}}, {{'b', 'u', 'r'}}, {{'m', 'y', 'a'}}, {{'m', 'y', 'a'}}}, // Burmese
-    LanguageCodeEntry {{},           {},                {},                {{'y', 'u', 'e'}}}, // Cantonese
-    LanguageCodeEntry {{{'c', 'a'}}, {{'c', 'a', 't'}}, {{'c', 'a', 't'}}, {{'c', 'a', 't'}}}, // Catalan
-    LanguageCodeEntry {{},           {{'c', 'e', 'b'}}, {{'c', 'e', 'b'}}, {{'c', 'e', 'b'}}}, // Cebuano
-    LanguageCodeEntry {{},           {},                {},                {{'t', 'z', 'm'}}}, // Central Atlas Tamazight
-    LanguageCodeEntry {{},           {},                {},                {{'c', 'k', 'b'}}}, // Central Kurdish
-    LanguageCodeEntry {{},           {},                {},                {{'c', 'c', 'p'}}}, // Chakma
-    LanguageCodeEntry {{{'c', 'h'}}, {{'c', 'h', 'a'}}, {{'c', 'h', 'a'}}, {{'c', 'h', 'a'}}}, // Chamorro
-    LanguageCodeEntry {{{'c', 'e'}}, {{'c', 'h', 'e'}}, {{'c', 'h', 'e'}}, {{'c', 'h', 'e'}}}, // Chechen
-    LanguageCodeEntry {{},           {{'c', 'h', 'r'}}, {{'c', 'h', 'r'}}, {{'c', 'h', 'r'}}}, // Cherokee
-    LanguageCodeEntry {{},           {},                {},                {{'c', 'i', 'c'}}}, // Chickasaw
-    LanguageCodeEntry {{},           {},                {},                {{'c', 'g', 'g'}}}, // Chiga
-    LanguageCodeEntry {{{'z', 'h'}}, {{'c', 'h', 'i'}}, {{'z', 'h', 'o'}}, {{'z', 'h', 'o'}}}, // Chinese
-    LanguageCodeEntry {{{'c', 'u'}}, {{'c', 'h', 'u'}}, {{'c', 'h', 'u'}}, {{'c', 'h', 'u'}}}, // Church
-    LanguageCodeEntry {{{'c', 'v'}}, {{'c', 'h', 'v'}}, {{'c', 'h', 'v'}}, {{'c', 'h', 'v'}}}, // Chuvash
-    LanguageCodeEntry {{},           {},                {},                {{'k', 's', 'h'}}}, // Colognian
-    LanguageCodeEntry {{},           {{'c', 'o', 'p'}}, {{'c', 'o', 'p'}}, {{'c', 'o', 'p'}}}, // Coptic
-    LanguageCodeEntry {{{'k', 'w'}}, {{'c', 'o', 'r'}}, {{'c', 'o', 'r'}}, {{'c', 'o', 'r'}}}, // Cornish
-    LanguageCodeEntry {{{'c', 'o'}}, {{'c', 'o', 's'}}, {{'c', 'o', 's'}}, {{'c', 'o', 's'}}}, // Corsican
-    LanguageCodeEntry {{{'c', 'r'}}, {{'c', 'r', 'e'}}, {{'c', 'r', 'e'}}, {{'c', 'r', 'e'}}}, // Cree
-    LanguageCodeEntry {{{'h', 'r'}}, {{'h', 'r', 'v'}}, {{'h', 'r', 'v'}}, {{'h', 'r', 'v'}}}, // Croatian
-    LanguageCodeEntry {{{'c', 's'}}, {{'c', 'z', 'e'}}, {{'c', 'e', 's'}}, {{'c', 'e', 's'}}}, // Czech
-    LanguageCodeEntry {{{'d', 'a'}}, {{'d', 'a', 'n'}}, {{'d', 'a', 'n'}}, {{'d', 'a', 'n'}}}, // Danish
-    LanguageCodeEntry {{{'d', 'v'}}, {{'d', 'i', 'v'}}, {{'d', 'i', 'v'}}, {{'d', 'i', 'v'}}}, // Divehi
-    LanguageCodeEntry {{},           {{'d', 'o', 'i'}}, {{'d', 'o', 'i'}}, {{'d', 'o', 'i'}}}, // Dogri
-    LanguageCodeEntry {{},           {{'d', 'u', 'a'}}, {{'d', 'u', 'a'}}, {{'d', 'u', 'a'}}}, // Duala
-    LanguageCodeEntry {{{'n', 'l'}}, {{'d', 'u', 't'}}, {{'n', 'l', 'd'}}, {{'n', 'l', 'd'}}}, // Dutch
-    LanguageCodeEntry {{{'d', 'z'}}, {{'d', 'z', 'o'}}, {{'d', 'z', 'o'}}, {{'d', 'z', 'o'}}}, // Dzongkha
-    LanguageCodeEntry {{},           {},                {},                {{'e', 'b', 'u'}}}, // Embu
-    LanguageCodeEntry {{{'e', 'n'}}, {{'e', 'n', 'g'}}, {{'e', 'n', 'g'}}, {{'e', 'n', 'g'}}}, // English
-    LanguageCodeEntry {{},           {{'m', 'y', 'v'}}, {{'m', 'y', 'v'}}, {{'m', 'y', 'v'}}}, // Erzya
-    LanguageCodeEntry {{{'e', 'o'}}, {{'e', 'p', 'o'}}, {{'e', 'p', 'o'}}, {{'e', 'p', 'o'}}}, // Esperanto
-    LanguageCodeEntry {{{'e', 't'}}, {{'e', 's', 't'}}, {{'e', 's', 't'}}, {{'e', 's', 't'}}}, // Estonian
-    LanguageCodeEntry {{{'e', 'e'}}, {{'e', 'w', 'e'}}, {{'e', 'w', 'e'}}, {{'e', 'w', 'e'}}}, // Ewe
-    LanguageCodeEntry {{},           {{'e', 'w', 'o'}}, {{'e', 'w', 'o'}}, {{'e', 'w', 'o'}}}, // Ewondo
-    LanguageCodeEntry {{{'f', 'o'}}, {{'f', 'a', 'o'}}, {{'f', 'a', 'o'}}, {{'f', 'a', 'o'}}}, // Faroese
-    LanguageCodeEntry {{{'f', 'j'}}, {{'f', 'i', 'j'}}, {{'f', 'i', 'j'}}, {{'f', 'i', 'j'}}}, // Fijian
-    LanguageCodeEntry {{},           {{'f', 'i', 'l'}}, {{'f', 'i', 'l'}}, {{'f', 'i', 'l'}}}, // Filipino
-    LanguageCodeEntry {{{'f', 'i'}}, {{'f', 'i', 'n'}}, {{'f', 'i', 'n'}}, {{'f', 'i', 'n'}}}, // Finnish
-    LanguageCodeEntry {{{'f', 'r'}}, {{'f', 'r', 'e'}}, {{'f', 'r', 'a'}}, {{'f', 'r', 'a'}}}, // French
-    LanguageCodeEntry {{},           {{'f', 'u', 'r'}}, {{'f', 'u', 'r'}}, {{'f', 'u', 'r'}}}, // Friulian
-    LanguageCodeEntry {{{'f', 'f'}}, {{'f', 'u', 'l'}}, {{'f', 'u', 'l'}}, {{'f', 'u', 'l'}}}, // Fulah
-    LanguageCodeEntry {{{'g', 'd'}}, {{'g', 'l', 'a'}}, {{'g', 'l', 'a'}}, {{'g', 'l', 'a'}}}, // Gaelic
-    LanguageCodeEntry {{},           {{'g', 'a', 'a'}}, {{'g', 'a', 'a'}}, {{'g', 'a', 'a'}}}, // Ga
-    LanguageCodeEntry {{{'g', 'l'}}, {{'g', 'l', 'g'}}, {{'g', 'l', 'g'}}, {{'g', 'l', 'g'}}}, // Galician
-    LanguageCodeEntry {{{'l', 'g'}}, {{'l', 'u', 'g'}}, {{'l', 'u', 'g'}}, {{'l', 'u', 'g'}}}, // Ganda
-    LanguageCodeEntry {{},           {{'g', 'e', 'z'}}, {{'g', 'e', 'z'}}, {{'g', 'e', 'z'}}}, // Geez
-    LanguageCodeEntry {{{'k', 'a'}}, {{'g', 'e', 'o'}}, {{'k', 'a', 't'}}, {{'k', 'a', 't'}}}, // Georgian
-    LanguageCodeEntry {{{'d', 'e'}}, {{'g', 'e', 'r'}}, {{'d', 'e', 'u'}}, {{'d', 'e', 'u'}}}, // German
-    LanguageCodeEntry {{},           {{'g', 'o', 't'}}, {{'g', 'o', 't'}}, {{'g', 'o', 't'}}}, // Gothic
-    LanguageCodeEntry {{{'e', 'l'}}, {{'g', 'r', 'e'}}, {{'e', 'l', 'l'}}, {{'e', 'l', 'l'}}}, // Greek
-    LanguageCodeEntry {{{'g', 'n'}}, {{'g', 'r', 'n'}}, {{'g', 'r', 'n'}}, {{'g', 'r', 'n'}}}, // Guarani
-    LanguageCodeEntry {{{'g', 'u'}}, {{'g', 'u', 'j'}}, {{'g', 'u', 'j'}}, {{'g', 'u', 'j'}}}, // Gujarati
-    LanguageCodeEntry {{},           {},                {},                {{'g', 'u', 'z'}}}, // Gusii
-    LanguageCodeEntry {{{'h', 't'}}, {{'h', 'a', 't'}}, {{'h', 'a', 't'}}, {{'h', 'a', 't'}}}, // Haitian
-    LanguageCodeEntry {{{'h', 'a'}}, {{'h', 'a', 'u'}}, {{'h', 'a', 'u'}}, {{'h', 'a', 'u'}}}, // Hausa
-    LanguageCodeEntry {{},           {{'h', 'a', 'w'}}, {{'h', 'a', 'w'}}, {{'h', 'a', 'w'}}}, // Hawaiian
-    LanguageCodeEntry {{{'h', 'e'}}, {{'h', 'e', 'b'}}, {{'h', 'e', 'b'}}, {{'h', 'e', 'b'}}}, // Hebrew
-    LanguageCodeEntry {{{'h', 'z'}}, {{'h', 'e', 'r'}}, {{'h', 'e', 'r'}}, {{'h', 'e', 'r'}}}, // Herero
-    LanguageCodeEntry {{{'h', 'i'}}, {{'h', 'i', 'n'}}, {{'h', 'i', 'n'}}, {{'h', 'i', 'n'}}}, // Hindi
-    LanguageCodeEntry {{{'h', 'o'}}, {{'h', 'm', 'o'}}, {{'h', 'm', 'o'}}, {{'h', 'm', 'o'}}}, // Hiri Motu
-    LanguageCodeEntry {{{'h', 'u'}}, {{'h', 'u', 'n'}}, {{'h', 'u', 'n'}}, {{'h', 'u', 'n'}}}, // Hungarian
-    LanguageCodeEntry {{{'i', 's'}}, {{'i', 'c', 'e'}}, {{'i', 's', 'l'}}, {{'i', 's', 'l'}}}, // Icelandic
-    LanguageCodeEntry {{{'i', 'o'}}, {{'i', 'd', 'o'}}, {{'i', 'd', 'o'}}, {{'i', 'd', 'o'}}}, // Ido
-    LanguageCodeEntry {{{'i', 'g'}}, {{'i', 'b', 'o'}}, {{'i', 'b', 'o'}}, {{'i', 'b', 'o'}}}, // Igbo
-    LanguageCodeEntry {{},           {{'s', 'm', 'n'}}, {{'s', 'm', 'n'}}, {{'s', 'm', 'n'}}}, // Inari Sami
-    LanguageCodeEntry {{{'i', 'd'}}, {{'i', 'n', 'd'}}, {{'i', 'n', 'd'}}, {{'i', 'n', 'd'}}}, // Indonesian
-    LanguageCodeEntry {{},           {{'i', 'n', 'h'}}, {{'i', 'n', 'h'}}, {{'i', 'n', 'h'}}}, // Ingush
-    LanguageCodeEntry {{{'i', 'a'}}, {{'i', 'n', 'a'}}, {{'i', 'n', 'a'}}, {{'i', 'n', 'a'}}}, // Interlingua
-    LanguageCodeEntry {{{'i', 'e'}}, {{'i', 'l', 'e'}}, {{'i', 'l', 'e'}}, {{'i', 'l', 'e'}}}, // Interlingue
-    LanguageCodeEntry {{{'i', 'u'}}, {{'i', 'k', 'u'}}, {{'i', 'k', 'u'}}, {{'i', 'k', 'u'}}}, // Inuktitut
-    LanguageCodeEntry {{{'i', 'k'}}, {{'i', 'p', 'k'}}, {{'i', 'p', 'k'}}, {{'i', 'p', 'k'}}}, // Inupiaq
-    LanguageCodeEntry {{{'g', 'a'}}, {{'g', 'l', 'e'}}, {{'g', 'l', 'e'}}, {{'g', 'l', 'e'}}}, // Irish
-    LanguageCodeEntry {{{'i', 't'}}, {{'i', 't', 'a'}}, {{'i', 't', 'a'}}, {{'i', 't', 'a'}}}, // Italian
-    LanguageCodeEntry {{{'j', 'a'}}, {{'j', 'p', 'n'}}, {{'j', 'p', 'n'}}, {{'j', 'p', 'n'}}}, // Japanese
-    LanguageCodeEntry {{{'j', 'v'}}, {{'j', 'a', 'v'}}, {{'j', 'a', 'v'}}, {{'j', 'a', 'v'}}}, // Javanese
-    LanguageCodeEntry {{},           {},                {},                {{'k', 'a', 'j'}}}, // Jju
-    LanguageCodeEntry {{},           {},                {},                {{'d', 'y', 'o'}}}, // Jola Fonyi
-    LanguageCodeEntry {{},           {},                {},                {{'k', 'e', 'a'}}}, // Kabuverdianu
-    LanguageCodeEntry {{},           {{'k', 'a', 'b'}}, {{'k', 'a', 'b'}}, {{'k', 'a', 'b'}}}, // Kabyle
-    LanguageCodeEntry {{},           {},                {},                {{'k', 'k', 'j'}}}, // Kako
-    LanguageCodeEntry {{{'k', 'l'}}, {{'k', 'a', 'l'}}, {{'k', 'a', 'l'}}, {{'k', 'a', 'l'}}}, // Kalaallisut
-    LanguageCodeEntry {{},           {},                {},                {{'k', 'l', 'n'}}}, // Kalenjin
-    LanguageCodeEntry {{},           {{'k', 'a', 'm'}}, {{'k', 'a', 'm'}}, {{'k', 'a', 'm'}}}, // Kamba
-    LanguageCodeEntry {{{'k', 'n'}}, {{'k', 'a', 'n'}}, {{'k', 'a', 'n'}}, {{'k', 'a', 'n'}}}, // Kannada
-    LanguageCodeEntry {{{'k', 'r'}}, {{'k', 'a', 'u'}}, {{'k', 'a', 'u'}}, {{'k', 'a', 'u'}}}, // Kanuri
-    LanguageCodeEntry {{{'k', 's'}}, {{'k', 'a', 's'}}, {{'k', 'a', 's'}}, {{'k', 'a', 's'}}}, // Kashmiri
-    LanguageCodeEntry {{{'k', 'k'}}, {{'k', 'a', 'z'}}, {{'k', 'a', 'z'}}, {{'k', 'a', 'z'}}}, // Kazakh
-    LanguageCodeEntry {{},           {},                {},                {{'k', 'e', 'n'}}}, // Kenyang
-    LanguageCodeEntry {{{'k', 'm'}}, {{'k', 'h', 'm'}}, {{'k', 'h', 'm'}}, {{'k', 'h', 'm'}}}, // Khmer
-    LanguageCodeEntry {{},           {},                {},                {{'q', 'u', 'c'}}}, // Kiche
-    LanguageCodeEntry {{{'k', 'i'}}, {{'k', 'i', 'k'}}, {{'k', 'i', 'k'}}, {{'k', 'i', 'k'}}}, // Kikuyu
-    LanguageCodeEntry {{{'r', 'w'}}, {{'k', 'i', 'n'}}, {{'k', 'i', 'n'}}, {{'k', 'i', 'n'}}}, // Kinyarwanda
-    LanguageCodeEntry {{{'k', 'v'}}, {{'k', 'o', 'm'}}, {{'k', 'o', 'm'}}, {{'k', 'o', 'm'}}}, // Komi
-    LanguageCodeEntry {{{'k', 'g'}}, {{'k', 'o', 'n'}}, {{'k', 'o', 'n'}}, {{'k', 'o', 'n'}}}, // Kongo
-    LanguageCodeEntry {{},           {{'k', 'o', 'k'}}, {{'k', 'o', 'k'}}, {{'k', 'o', 'k'}}}, // Konkani
-    LanguageCodeEntry {{{'k', 'o'}}, {{'k', 'o', 'r'}}, {{'k', 'o', 'r'}}, {{'k', 'o', 'r'}}}, // Korean
-    LanguageCodeEntry {{},           {},                {},                {{'k', 'f', 'o'}}}, // Koro
-    LanguageCodeEntry {{},           {},                {},                {{'s', 'e', 's'}}}, // Koyraboro Senni
-    LanguageCodeEntry {{},           {},                {},                {{'k', 'h', 'q'}}}, // Koyra Chiini
-    LanguageCodeEntry {{},           {{'k', 'p', 'e'}}, {{'k', 'p', 'e'}}, {{'k', 'p', 'e'}}}, // Kpelle
-    LanguageCodeEntry {{{'k', 'j'}}, {{'k', 'u', 'a'}}, {{'k', 'u', 'a'}}, {{'k', 'u', 'a'}}}, // Kuanyama
-    LanguageCodeEntry {{{'k', 'u'}}, {{'k', 'u', 'r'}}, {{'k', 'u', 'r'}}, {{'k', 'u', 'r'}}}, // Kurdish
-    LanguageCodeEntry {{},           {},                {},                {{'n', 'm', 'g'}}}, // Kwasio
-    LanguageCodeEntry {{{'k', 'y'}}, {{'k', 'i', 'r'}}, {{'k', 'i', 'r'}}, {{'k', 'i', 'r'}}}, // Kyrgyz
-    LanguageCodeEntry {{},           {},                {},                {{'l', 'k', 't'}}}, // Lakota
-    LanguageCodeEntry {{},           {},                {},                {{'l', 'a', 'g'}}}, // Langi
-    LanguageCodeEntry {{{'l', 'o'}}, {{'l', 'a', 'o'}}, {{'l', 'a', 'o'}}, {{'l', 'a', 'o'}}}, // Lao
-    LanguageCodeEntry {{{'l', 'a'}}, {{'l', 'a', 't'}}, {{'l', 'a', 't'}}, {{'l', 'a', 't'}}}, // Latin
-    LanguageCodeEntry {{{'l', 'v'}}, {{'l', 'a', 'v'}}, {{'l', 'a', 'v'}}, {{'l', 'a', 'v'}}}, // Latvian
-    LanguageCodeEntry {{},           {{'l', 'e', 'z'}}, {{'l', 'e', 'z'}}, {{'l', 'e', 'z'}}}, // Lezghian
-    LanguageCodeEntry {{{'l', 'i'}}, {{'l', 'i', 'm'}}, {{'l', 'i', 'm'}}, {{'l', 'i', 'm'}}}, // Limburgish
-    LanguageCodeEntry {{{'l', 'n'}}, {{'l', 'i', 'n'}}, {{'l', 'i', 'n'}}, {{'l', 'i', 'n'}}}, // Lingala
-    LanguageCodeEntry {{},           {},                {},                {{'l', 'z', 'h'}}}, // Literary Chinese
-    LanguageCodeEntry {{{'l', 't'}}, {{'l', 'i', 't'}}, {{'l', 'i', 't'}}, {{'l', 'i', 't'}}}, // Lithuanian
-    LanguageCodeEntry {{},           {{'j', 'b', 'o'}}, {{'j', 'b', 'o'}}, {{'j', 'b', 'o'}}}, // Lojban
-    LanguageCodeEntry {{},           {{'d', 's', 'b'}}, {{'d', 's', 'b'}}, {{'d', 's', 'b'}}}, // Lower Sorbian
-    LanguageCodeEntry {{},           {{'n', 'd', 's'}}, {{'n', 'd', 's'}}, {{'n', 'd', 's'}}}, // Low German
-    LanguageCodeEntry {{{'l', 'u'}}, {{'l', 'u', 'b'}}, {{'l', 'u', 'b'}}, {{'l', 'u', 'b'}}}, // Luba Katanga
-    LanguageCodeEntry {{},           {{'s', 'm', 'j'}}, {{'s', 'm', 'j'}}, {{'s', 'm', 'j'}}}, // Lule Sami
-    LanguageCodeEntry {{},           {{'l', 'u', 'o'}}, {{'l', 'u', 'o'}}, {{'l', 'u', 'o'}}}, // Luo
-    LanguageCodeEntry {{{'l', 'b'}}, {{'l', 't', 'z'}}, {{'l', 't', 'z'}}, {{'l', 't', 'z'}}}, // Luxembourgish
-    LanguageCodeEntry {{},           {},                {},                {{'l', 'u', 'y'}}}, // Luyia
-    LanguageCodeEntry {{{'m', 'k'}}, {{'m', 'a', 'c'}}, {{'m', 'k', 'd'}}, {{'m', 'k', 'd'}}}, // Macedonian
-    LanguageCodeEntry {{},           {},                {},                {{'j', 'm', 'c'}}}, // Machame
-    LanguageCodeEntry {{},           {{'m', 'a', 'i'}}, {{'m', 'a', 'i'}}, {{'m', 'a', 'i'}}}, // Maithili
-    LanguageCodeEntry {{},           {},                {},                {{'m', 'g', 'h'}}}, // Makhuwa Meetto
-    LanguageCodeEntry {{},           {},                {},                {{'k', 'd', 'e'}}}, // Makonde
-    LanguageCodeEntry {{{'m', 'g'}}, {{'m', 'l', 'g'}}, {{'m', 'l', 'g'}}, {{'m', 'l', 'g'}}}, // Malagasy
-    LanguageCodeEntry {{{'m', 'l'}}, {{'m', 'a', 'l'}}, {{'m', 'a', 'l'}}, {{'m', 'a', 'l'}}}, // Malayalam
-    LanguageCodeEntry {{{'m', 's'}}, {{'m', 'a', 'y'}}, {{'m', 's', 'a'}}, {{'m', 's', 'a'}}}, // Malay
-    LanguageCodeEntry {{{'m', 't'}}, {{'m', 'l', 't'}}, {{'m', 'l', 't'}}, {{'m', 'l', 't'}}}, // Maltese
-    LanguageCodeEntry {{},           {{'m', 'a', 'n'}}, {{'m', 'a', 'n'}}, {{'m', 'a', 'n'}}}, // Mandingo
-    LanguageCodeEntry {{},           {{'m', 'n', 'i'}}, {{'m', 'n', 'i'}}, {{'m', 'n', 'i'}}}, // Manipuri
-    LanguageCodeEntry {{{'g', 'v'}}, {{'g', 'l', 'v'}}, {{'g', 'l', 'v'}}, {{'g', 'l', 'v'}}}, // Manx
-    LanguageCodeEntry {{{'m', 'i'}}, {{'m', 'a', 'o'}}, {{'m', 'r', 'i'}}, {{'m', 'r', 'i'}}}, // Maori
-    LanguageCodeEntry {{},           {{'a', 'r', 'n'}}, {{'a', 'r', 'n'}}, {{'a', 'r', 'n'}}}, // Mapuche
-    LanguageCodeEntry {{{'m', 'r'}}, {{'m', 'a', 'r'}}, {{'m', 'a', 'r'}}, {{'m', 'a', 'r'}}}, // Marathi
-    LanguageCodeEntry {{{'m', 'h'}}, {{'m', 'a', 'h'}}, {{'m', 'a', 'h'}}, {{'m', 'a', 'h'}}}, // Marshallese
-    LanguageCodeEntry {{},           {{'m', 'a', 's'}}, {{'m', 'a', 's'}}, {{'m', 'a', 's'}}}, // Masai
-    LanguageCodeEntry {{},           {},                {},                {{'m', 'z', 'n'}}}, // Mazanderani
-    LanguageCodeEntry {{},           {{'m', 'e', 'n'}}, {{'m', 'e', 'n'}}, {{'m', 'e', 'n'}}}, // Mende
-    LanguageCodeEntry {{},           {},                {},                {{'m', 'e', 'r'}}}, // Meru
-    LanguageCodeEntry {{},           {},                {},                {{'m', 'g', 'o'}}}, // Meta
-    LanguageCodeEntry {{},           {{'m', 'o', 'h'}}, {{'m', 'o', 'h'}}, {{'m', 'o', 'h'}}}, // Mohawk
-    LanguageCodeEntry {{{'m', 'n'}}, {{'m', 'o', 'n'}}, {{'m', 'o', 'n'}}, {{'m', 'o', 'n'}}}, // Mongolian
-    LanguageCodeEntry {{},           {},                {},                {{'m', 'f', 'e'}}}, // Morisyen
-    LanguageCodeEntry {{},           {},                {},                {{'m', 'u', 'a'}}}, // Mundang
-    LanguageCodeEntry {{},           {{'m', 'u', 's'}}, {{'m', 'u', 's'}}, {{'m', 'u', 's'}}}, // Muscogee
-    LanguageCodeEntry {{},           {},                {},                {{'n', 'a', 'q'}}}, // Nama
-    LanguageCodeEntry {{{'n', 'a'}}, {{'n', 'a', 'u'}}, {{'n', 'a', 'u'}}, {{'n', 'a', 'u'}}}, // Nauru
-    LanguageCodeEntry {{{'n', 'v'}}, {{'n', 'a', 'v'}}, {{'n', 'a', 'v'}}, {{'n', 'a', 'v'}}}, // Navajo
-    LanguageCodeEntry {{{'n', 'g'}}, {{'n', 'd', 'o'}}, {{'n', 'd', 'o'}}, {{'n', 'd', 'o'}}}, // Ndonga
-    LanguageCodeEntry {{{'n', 'e'}}, {{'n', 'e', 'p'}}, {{'n', 'e', 'p'}}, {{'n', 'e', 'p'}}}, // Nepali
-    LanguageCodeEntry {{},           {{'n', 'e', 'w'}}, {{'n', 'e', 'w'}}, {{'n', 'e', 'w'}}}, // Newari
-    LanguageCodeEntry {{},           {},                {},                {{'n', 'n', 'h'}}}, // Ngiemboon
-    LanguageCodeEntry {{},           {},                {},                {{'j', 'g', 'o'}}}, // Ngomba
-    LanguageCodeEntry {{},           {},                {},                {{'p', 'c', 'm'}}}, // Nigerian Pidgin
-    LanguageCodeEntry {{},           {{'n', 'q', 'o'}}, {{'n', 'q', 'o'}}, {{'n', 'q', 'o'}}}, // Nko
-    LanguageCodeEntry {{},           {},                {},                {{'l', 'r', 'c'}}}, // Northern Luri
-    LanguageCodeEntry {{{'s', 'e'}}, {{'s', 'm', 'e'}}, {{'s', 'm', 'e'}}, {{'s', 'm', 'e'}}}, // Northern Sami
-    LanguageCodeEntry {{},           {{'n', 's', 'o'}}, {{'n', 's', 'o'}}, {{'n', 's', 'o'}}}, // Northern Sotho
-    LanguageCodeEntry {{{'n', 'd'}}, {{'n', 'd', 'e'}}, {{'n', 'd', 'e'}}, {{'n', 'd', 'e'}}}, // North Ndebele
-    LanguageCodeEntry {{{'n', 'b'}}, {{'n', 'o', 'b'}}, {{'n', 'o', 'b'}}, {{'n', 'o', 'b'}}}, // Norwegian Bokmal
-    LanguageCodeEntry {{{'n', 'n'}}, {{'n', 'n', 'o'}}, {{'n', 'n', 'o'}}, {{'n', 'n', 'o'}}}, // Norwegian Nynorsk
-    LanguageCodeEntry {{},           {},                {},                {{'n', 'u', 's'}}}, // Nuer
-    LanguageCodeEntry {{{'n', 'y'}}, {{'n', 'y', 'a'}}, {{'n', 'y', 'a'}}, {{'n', 'y', 'a'}}}, // Nyanja
-    LanguageCodeEntry {{},           {{'n', 'y', 'n'}}, {{'n', 'y', 'n'}}, {{'n', 'y', 'n'}}}, // Nyankole
-    LanguageCodeEntry {{{'o', 'c'}}, {{'o', 'c', 'i'}}, {{'o', 'c', 'i'}}, {{'o', 'c', 'i'}}}, // Occitan
-    LanguageCodeEntry {{{'o', 'r'}}, {{'o', 'r', 'i'}}, {{'o', 'r', 'i'}}, {{'o', 'r', 'i'}}}, // Odia
-    LanguageCodeEntry {{{'o', 'j'}}, {{'o', 'j', 'i'}}, {{'o', 'j', 'i'}}, {{'o', 'j', 'i'}}}, // Ojibwa
-    LanguageCodeEntry {{},           {{'s', 'g', 'a'}}, {{'s', 'g', 'a'}}, {{'s', 'g', 'a'}}}, // Old Irish
-    LanguageCodeEntry {{},           {{'n', 'o', 'n'}}, {{'n', 'o', 'n'}}, {{'n', 'o', 'n'}}}, // Old Norse
-    LanguageCodeEntry {{},           {{'p', 'e', 'o'}}, {{'p', 'e', 'o'}}, {{'p', 'e', 'o'}}}, // Old Persian
-    LanguageCodeEntry {{{'o', 'm'}}, {{'o', 'r', 'm'}}, {{'o', 'r', 'm'}}, {{'o', 'r', 'm'}}}, // Oromo
-    LanguageCodeEntry {{},           {{'o', 's', 'a'}}, {{'o', 's', 'a'}}, {{'o', 's', 'a'}}}, // Osage
-    LanguageCodeEntry {{{'o', 's'}}, {{'o', 's', 's'}}, {{'o', 's', 's'}}, {{'o', 's', 's'}}}, // Ossetic
-    LanguageCodeEntry {{},           {{'p', 'a', 'l'}}, {{'p', 'a', 'l'}}, {{'p', 'a', 'l'}}}, // Pahlavi
-    LanguageCodeEntry {{},           {{'p', 'a', 'u'}}, {{'p', 'a', 'u'}}, {{'p', 'a', 'u'}}}, // Palauan
-    LanguageCodeEntry {{{'p', 'i'}}, {{'p', 'l', 'i'}}, {{'p', 'l', 'i'}}, {{'p', 'l', 'i'}}}, // Pali
-    LanguageCodeEntry {{},           {{'p', 'a', 'p'}}, {{'p', 'a', 'p'}}, {{'p', 'a', 'p'}}}, // Papiamento
-    LanguageCodeEntry {{{'p', 's'}}, {{'p', 'u', 's'}}, {{'p', 'u', 's'}}, {{'p', 'u', 's'}}}, // Pashto
-    LanguageCodeEntry {{{'f', 'a'}}, {{'p', 'e', 'r'}}, {{'f', 'a', 's'}}, {{'f', 'a', 's'}}}, // Persian
-    LanguageCodeEntry {{},           {{'p', 'h', 'n'}}, {{'p', 'h', 'n'}}, {{'p', 'h', 'n'}}}, // Phoenician
-    LanguageCodeEntry {{{'p', 'l'}}, {{'p', 'o', 'l'}}, {{'p', 'o', 'l'}}, {{'p', 'o', 'l'}}}, // Polish
-    LanguageCodeEntry {{{'p', 't'}}, {{'p', 'o', 'r'}}, {{'p', 'o', 'r'}}, {{'p', 'o', 'r'}}}, // Portuguese
-    LanguageCodeEntry {{},           {},                {},                {{'p', 'r', 'g'}}}, // Prussian
-    LanguageCodeEntry {{{'p', 'a'}}, {{'p', 'a', 'n'}}, {{'p', 'a', 'n'}}, {{'p', 'a', 'n'}}}, // Punjabi
-    LanguageCodeEntry {{{'q', 'u'}}, {{'q', 'u', 'e'}}, {{'q', 'u', 'e'}}, {{'q', 'u', 'e'}}}, // Quechua
-    LanguageCodeEntry {{{'r', 'o'}}, {{'r', 'u', 'm'}}, {{'r', 'o', 'n'}}, {{'r', 'o', 'n'}}}, // Romanian
-    LanguageCodeEntry {{{'r', 'm'}}, {{'r', 'o', 'h'}}, {{'r', 'o', 'h'}}, {{'r', 'o', 'h'}}}, // Romansh
-    LanguageCodeEntry {{},           {},                {},                {{'r', 'o', 'f'}}}, // Rombo
-    LanguageCodeEntry {{{'r', 'n'}}, {{'r', 'u', 'n'}}, {{'r', 'u', 'n'}}, {{'r', 'u', 'n'}}}, // Rundi
-    LanguageCodeEntry {{{'r', 'u'}}, {{'r', 'u', 's'}}, {{'r', 'u', 's'}}, {{'r', 'u', 's'}}}, // Russian
-    LanguageCodeEntry {{},           {},                {},                {{'r', 'w', 'k'}}}, // Rwa
-    LanguageCodeEntry {{},           {},                {},                {{'s', 's', 'y'}}}, // Saho
-    LanguageCodeEntry {{},           {{'s', 'a', 'h'}}, {{'s', 'a', 'h'}}, {{'s', 'a', 'h'}}}, // Sakha
-    LanguageCodeEntry {{},           {},                {},                {{'s', 'a', 'q'}}}, // Samburu
-    LanguageCodeEntry {{{'s', 'm'}}, {{'s', 'm', 'o'}}, {{'s', 'm', 'o'}}, {{'s', 'm', 'o'}}}, // Samoan
-    LanguageCodeEntry {{{'s', 'g'}}, {{'s', 'a', 'g'}}, {{'s', 'a', 'g'}}, {{'s', 'a', 'g'}}}, // Sango
-    LanguageCodeEntry {{},           {},                {},                {{'s', 'b', 'p'}}}, // Sangu
-    LanguageCodeEntry {{{'s', 'a'}}, {{'s', 'a', 'n'}}, {{'s', 'a', 'n'}}, {{'s', 'a', 'n'}}}, // Sanskrit
-    LanguageCodeEntry {{},           {{'s', 'a', 't'}}, {{'s', 'a', 't'}}, {{'s', 'a', 't'}}}, // Santali
-    LanguageCodeEntry {{{'s', 'c'}}, {{'s', 'r', 'd'}}, {{'s', 'r', 'd'}}, {{'s', 'r', 'd'}}}, // Sardinian
-    LanguageCodeEntry {{},           {},                {},                {{'s', 'a', 'z'}}}, // Saurashtra
-    LanguageCodeEntry {{},           {},                {},                {{'s', 'e', 'h'}}}, // Sena
-    LanguageCodeEntry {{{'s', 'r'}}, {{'s', 'r', 'p'}}, {{'s', 'r', 'p'}}, {{'s', 'r', 'p'}}}, // Serbian
-    LanguageCodeEntry {{},           {},                {},                {{'k', 's', 'b'}}}, // Shambala
-    LanguageCodeEntry {{{'s', 'n'}}, {{'s', 'n', 'a'}}, {{'s', 'n', 'a'}}, {{'s', 'n', 'a'}}}, // Shona
-    LanguageCodeEntry {{{'i', 'i'}}, {{'i', 'i', 'i'}}, {{'i', 'i', 'i'}}, {{'i', 'i', 'i'}}}, // Sichuan Yi
-    LanguageCodeEntry {{},           {{'s', 'c', 'n'}}, {{'s', 'c', 'n'}}, {{'s', 'c', 'n'}}}, // Sicilian
-    LanguageCodeEntry {{},           {{'s', 'i', 'd'}}, {{'s', 'i', 'd'}}, {{'s', 'i', 'd'}}}, // Sidamo
-    LanguageCodeEntry {{},           {},                {},                {{'s', 'z', 'l'}}}, // Silesian
-    LanguageCodeEntry {{{'s', 'd'}}, {{'s', 'n', 'd'}}, {{'s', 'n', 'd'}}, {{'s', 'n', 'd'}}}, // Sindhi
-    LanguageCodeEntry {{{'s', 'i'}}, {{'s', 'i', 'n'}}, {{'s', 'i', 'n'}}, {{'s', 'i', 'n'}}}, // Sinhala
-    LanguageCodeEntry {{},           {{'s', 'm', 's'}}, {{'s', 'm', 's'}}, {{'s', 'm', 's'}}}, // Skolt Sami
-    LanguageCodeEntry {{{'s', 'k'}}, {{'s', 'l', 'o'}}, {{'s', 'l', 'k'}}, {{'s', 'l', 'k'}}}, // Slovak
-    LanguageCodeEntry {{{'s', 'l'}}, {{'s', 'l', 'v'}}, {{'s', 'l', 'v'}}, {{'s', 'l', 'v'}}}, // Slovenian
-    LanguageCodeEntry {{},           {},                {},                {{'x', 'o', 'g'}}}, // Soga
-    LanguageCodeEntry {{{'s', 'o'}}, {{'s', 'o', 'm'}}, {{'s', 'o', 'm'}}, {{'s', 'o', 'm'}}}, // Somali
-    LanguageCodeEntry {{},           {},                {},                {{'s', 'd', 'h'}}}, // Southern Kurdish
-    LanguageCodeEntry {{},           {{'s', 'm', 'a'}}, {{'s', 'm', 'a'}}, {{'s', 'm', 'a'}}}, // Southern Sami
-    LanguageCodeEntry {{{'s', 't'}}, {{'s', 'o', 't'}}, {{'s', 'o', 't'}}, {{'s', 'o', 't'}}}, // Southern Sotho
-    LanguageCodeEntry {{{'n', 'r'}}, {{'n', 'b', 'l'}}, {{'n', 'b', 'l'}}, {{'n', 'b', 'l'}}}, // South Ndebele
-    LanguageCodeEntry {{{'e', 's'}}, {{'s', 'p', 'a'}}, {{'s', 'p', 'a'}}, {{'s', 'p', 'a'}}}, // Spanish
-    LanguageCodeEntry {{},           {{'z', 'g', 'h'}}, {{'z', 'g', 'h'}}, {{'z', 'g', 'h'}}}, // Standard Moroccan Tamazight
-    LanguageCodeEntry {{{'s', 'u'}}, {{'s', 'u', 'n'}}, {{'s', 'u', 'n'}}, {{'s', 'u', 'n'}}}, // Sundanese
-    LanguageCodeEntry {{{'s', 'w'}}, {{'s', 'w', 'a'}}, {{'s', 'w', 'a'}}, {{'s', 'w', 'a'}}}, // Swahili
-    LanguageCodeEntry {{{'s', 's'}}, {{'s', 's', 'w'}}, {{'s', 's', 'w'}}, {{'s', 's', 'w'}}}, // Swati
-    LanguageCodeEntry {{{'s', 'v'}}, {{'s', 'w', 'e'}}, {{'s', 'w', 'e'}}, {{'s', 'w', 'e'}}}, // Swedish
-    LanguageCodeEntry {{},           {{'g', 's', 'w'}}, {{'g', 's', 'w'}}, {{'g', 's', 'w'}}}, // Swiss German
-    LanguageCodeEntry {{},           {{'s', 'y', 'r'}}, {{'s', 'y', 'r'}}, {{'s', 'y', 'r'}}}, // Syriac
-    LanguageCodeEntry {{},           {},                {},                {{'s', 'h', 'i'}}}, // Tachelhit
-    LanguageCodeEntry {{{'t', 'y'}}, {{'t', 'a', 'h'}}, {{'t', 'a', 'h'}}, {{'t', 'a', 'h'}}}, // Tahitian
-    LanguageCodeEntry {{},           {},                {},                {{'b', 'l', 't'}}}, // Tai Dam
-    LanguageCodeEntry {{},           {},                {},                {{'d', 'a', 'v'}}}, // Taita
-    LanguageCodeEntry {{{'t', 'g'}}, {{'t', 'g', 'k'}}, {{'t', 'g', 'k'}}, {{'t', 'g', 'k'}}}, // Tajik
-    LanguageCodeEntry {{{'t', 'a'}}, {{'t', 'a', 'm'}}, {{'t', 'a', 'm'}}, {{'t', 'a', 'm'}}}, // Tamil
-    LanguageCodeEntry {{},           {},                {},                {{'t', 'r', 'v'}}}, // Taroko
-    LanguageCodeEntry {{},           {},                {},                {{'t', 'w', 'q'}}}, // Tasawaq
-    LanguageCodeEntry {{{'t', 't'}}, {{'t', 'a', 't'}}, {{'t', 'a', 't'}}, {{'t', 'a', 't'}}}, // Tatar
-    LanguageCodeEntry {{{'t', 'e'}}, {{'t', 'e', 'l'}}, {{'t', 'e', 'l'}}, {{'t', 'e', 'l'}}}, // Telugu
-    LanguageCodeEntry {{},           {},                {},                {{'t', 'e', 'o'}}}, // Teso
-    LanguageCodeEntry {{{'t', 'h'}}, {{'t', 'h', 'a'}}, {{'t', 'h', 'a'}}, {{'t', 'h', 'a'}}}, // Thai
-    LanguageCodeEntry {{{'b', 'o'}}, {{'t', 'i', 'b'}}, {{'b', 'o', 'd'}}, {{'b', 'o', 'd'}}}, // Tibetan
-    LanguageCodeEntry {{},           {{'t', 'i', 'g'}}, {{'t', 'i', 'g'}}, {{'t', 'i', 'g'}}}, // Tigre
-    LanguageCodeEntry {{{'t', 'i'}}, {{'t', 'i', 'r'}}, {{'t', 'i', 'r'}}, {{'t', 'i', 'r'}}}, // Tigrinya
-    LanguageCodeEntry {{},           {{'t', 'k', 'l'}}, {{'t', 'k', 'l'}}, {{'t', 'k', 'l'}}}, // Tokelau
-    LanguageCodeEntry {{},           {{'t', 'p', 'i'}}, {{'t', 'p', 'i'}}, {{'t', 'p', 'i'}}}, // Tok Pisin
-    LanguageCodeEntry {{{'t', 'o'}}, {{'t', 'o', 'n'}}, {{'t', 'o', 'n'}}, {{'t', 'o', 'n'}}}, // Tongan
-    LanguageCodeEntry {{{'t', 's'}}, {{'t', 's', 'o'}}, {{'t', 's', 'o'}}, {{'t', 's', 'o'}}}, // Tsonga
-    LanguageCodeEntry {{{'t', 'n'}}, {{'t', 's', 'n'}}, {{'t', 's', 'n'}}, {{'t', 's', 'n'}}}, // Tswana
-    LanguageCodeEntry {{{'t', 'r'}}, {{'t', 'u', 'r'}}, {{'t', 'u', 'r'}}, {{'t', 'u', 'r'}}}, // Turkish
-    LanguageCodeEntry {{{'t', 'k'}}, {{'t', 'u', 'k'}}, {{'t', 'u', 'k'}}, {{'t', 'u', 'k'}}}, // Turkmen
-    LanguageCodeEntry {{},           {{'t', 'v', 'l'}}, {{'t', 'v', 'l'}}, {{'t', 'v', 'l'}}}, // Tuvalu
-    LanguageCodeEntry {{},           {},                {},                {{'k', 'c', 'g'}}}, // Tyap
-    LanguageCodeEntry {{},           {{'u', 'g', 'a'}}, {{'u', 'g', 'a'}}, {{'u', 'g', 'a'}}}, // Ugaritic
-    LanguageCodeEntry {{{'u', 'k'}}, {{'u', 'k', 'r'}}, {{'u', 'k', 'r'}}, {{'u', 'k', 'r'}}}, // Ukrainian
-    LanguageCodeEntry {{},           {{'h', 's', 'b'}}, {{'h', 's', 'b'}}, {{'h', 's', 'b'}}}, // Upper Sorbian
-    LanguageCodeEntry {{{'u', 'r'}}, {{'u', 'r', 'd'}}, {{'u', 'r', 'd'}}, {{'u', 'r', 'd'}}}, // Urdu
-    LanguageCodeEntry {{{'u', 'g'}}, {{'u', 'i', 'g'}}, {{'u', 'i', 'g'}}, {{'u', 'i', 'g'}}}, // Uyghur
-    LanguageCodeEntry {{{'u', 'z'}}, {{'u', 'z', 'b'}}, {{'u', 'z', 'b'}}, {{'u', 'z', 'b'}}}, // Uzbek
-    LanguageCodeEntry {{},           {{'v', 'a', 'i'}}, {{'v', 'a', 'i'}}, {{'v', 'a', 'i'}}}, // Vai
-    LanguageCodeEntry {{{'v', 'e'}}, {{'v', 'e', 'n'}}, {{'v', 'e', 'n'}}, {{'v', 'e', 'n'}}}, // Venda
-    LanguageCodeEntry {{{'v', 'i'}}, {{'v', 'i', 'e'}}, {{'v', 'i', 'e'}}, {{'v', 'i', 'e'}}}, // Vietnamese
-    LanguageCodeEntry {{{'v', 'o'}}, {{'v', 'o', 'l'}}, {{'v', 'o', 'l'}}, {{'v', 'o', 'l'}}}, // Volapuk
-    LanguageCodeEntry {{},           {},                {},                {{'v', 'u', 'n'}}}, // Vunjo
-    LanguageCodeEntry {{{'w', 'a'}}, {{'w', 'l', 'n'}}, {{'w', 'l', 'n'}}, {{'w', 'l', 'n'}}}, // Walloon
-    LanguageCodeEntry {{},           {},                {},                {{'w', 'a', 'e'}}}, // Walser
-    LanguageCodeEntry {{},           {},                {},                {{'w', 'b', 'p'}}}, // Warlpiri
-    LanguageCodeEntry {{{'c', 'y'}}, {{'w', 'e', 'l'}}, {{'c', 'y', 'm'}}, {{'c', 'y', 'm'}}}, // Welsh
-    LanguageCodeEntry {{},           {},                {},                {{'b', 'g', 'n'}}}, // Western Balochi
-    LanguageCodeEntry {{{'f', 'y'}}, {{'f', 'r', 'y'}}, {{'f', 'r', 'y'}}, {{'f', 'r', 'y'}}}, // Western Frisian
-    LanguageCodeEntry {{},           {{'w', 'a', 'l'}}, {{'w', 'a', 'l'}}, {{'w', 'a', 'l'}}}, // Wolaytta
-    LanguageCodeEntry {{{'w', 'o'}}, {{'w', 'o', 'l'}}, {{'w', 'o', 'l'}}, {{'w', 'o', 'l'}}}, // Wolof
-    LanguageCodeEntry {{{'x', 'h'}}, {{'x', 'h', 'o'}}, {{'x', 'h', 'o'}}, {{'x', 'h', 'o'}}}, // Xhosa
-    LanguageCodeEntry {{},           {},                {},                {{'y', 'a', 'v'}}}, // Yangben
-    LanguageCodeEntry {{{'y', 'i'}}, {{'y', 'i', 'd'}}, {{'y', 'i', 'd'}}, {{'y', 'i', 'd'}}}, // Yiddish
-    LanguageCodeEntry {{{'y', 'o'}}, {{'y', 'o', 'r'}}, {{'y', 'o', 'r'}}, {{'y', 'o', 'r'}}}, // Yoruba
-    LanguageCodeEntry {{},           {},                {},                {{'d', 'j', 'e'}}}, // Zarma
-    LanguageCodeEntry {{{'z', 'a'}}, {{'z', 'h', 'a'}}, {{'z', 'h', 'a'}}, {{'z', 'h', 'a'}}}, // Zhuang
-    LanguageCodeEntry {{{'z', 'u'}}, {{'z', 'u', 'l'}}, {{'z', 'u', 'l'}}, {{'z', 'u', 'l'}}}, // Zulu
-    LanguageCodeEntry {{},           {},                {},                {{'k', 'g', 'p'}}}, // Kaingang
-    LanguageCodeEntry {{},           {},                {},                {{'y', 'r', 'l'}}}, // Nheengatu
-    LanguageCodeEntry {{},           {},                {},                {{'b', 'g', 'c'}}}, // Haryanvi
-    LanguageCodeEntry {{},           {{'f', 'r', 'r'}}, {{'f', 'r', 'r'}}, {{'f', 'r', 'r'}}}, // Northern Frisian
-    LanguageCodeEntry {{},           {{'r', 'a', 'j'}}, {{'r', 'a', 'j'}}, {{'r', 'a', 'j'}}}, // Rajasthani
-    LanguageCodeEntry {{},           {{'m', 'd', 'f'}}, {{'m', 'd', 'f'}}, {{'m', 'd', 'f'}}}, // Moksha
-    LanguageCodeEntry {{},           {},                {},                {{'t', 'o', 'k'}}}, // Toki Pona
-    LanguageCodeEntry {{},           {},                {},                {{'p', 'i', 's'}}}, // Pijin
-    LanguageCodeEntry {{},           {},                {},                {{'a', 'n', 'n'}}}, // Obolo
-    LanguageCodeEntry {{},           {{'b', 'a', 'l'}}, {{'b', 'a', 'l'}}, {{'b', 'a', 'l'}}}, // Baluchi
-    LanguageCodeEntry {{},           {},                {},                {{'l', 'i', 'j'}}}, // Ligurian
-    LanguageCodeEntry {{},           {},                {},                {{'r', 'h', 'g'}}}, // Rohingya
-    LanguageCodeEntry {{},           {},                {},                {{'t', 'r', 'w'}}}, // Torwali
+    LanguageCodeEntry {{},         {'u', 'n', 'd'}, {'u', 'n', 'd'}, {'u', 'n', 'd'}}, // AnyLanguage
+    LanguageCodeEntry {{},         {'u', 'n', 'd'}, {'u', 'n', 'd'}, {'u', 'n', 'd'}}, // C
+    LanguageCodeEntry {{'a', 'b'}, {'a', 'b', 'k'}, {'a', 'b', 'k'}, {'a', 'b', 'k'}}, // Abkhazian
+    LanguageCodeEntry {{'a', 'a'}, {'a', 'a', 'r'}, {'a', 'a', 'r'}, {'a', 'a', 'r'}}, // Afar
+    LanguageCodeEntry {{'a', 'f'}, {'a', 'f', 'r'}, {'a', 'f', 'r'}, {'a', 'f', 'r'}}, // Afrikaans
+    LanguageCodeEntry {{},         {},              {},              {'a', 'g', 'q'}}, // Aghem
+    LanguageCodeEntry {{'a', 'k'}, {'a', 'k', 'a'}, {'a', 'k', 'a'}, {'a', 'k', 'a'}}, // Akan
+    LanguageCodeEntry {{},         {'a', 'k', 'k'}, {'a', 'k', 'k'}, {'a', 'k', 'k'}}, // Akkadian
+    LanguageCodeEntry {{},         {},              {},              {'b', 's', 's'}}, // Akoose
+    LanguageCodeEntry {{'s', 'q'}, {'a', 'l', 'b'}, {'s', 'q', 'i'}, {'s', 'q', 'i'}}, // Albanian
+    LanguageCodeEntry {{},         {},              {},              {'a', 's', 'e'}}, // American Sign Language
+    LanguageCodeEntry {{'a', 'm'}, {'a', 'm', 'h'}, {'a', 'm', 'h'}, {'a', 'm', 'h'}}, // Amharic
+    LanguageCodeEntry {{},         {'e', 'g', 'y'}, {'e', 'g', 'y'}, {'e', 'g', 'y'}}, // Ancient Egyptian
+    LanguageCodeEntry {{},         {'g', 'r', 'c'}, {'g', 'r', 'c'}, {'g', 'r', 'c'}}, // Ancient Greek
+    LanguageCodeEntry {{'a', 'r'}, {'a', 'r', 'a'}, {'a', 'r', 'a'}, {'a', 'r', 'a'}}, // Arabic
+    LanguageCodeEntry {{'a', 'n'}, {'a', 'r', 'g'}, {'a', 'r', 'g'}, {'a', 'r', 'g'}}, // Aragonese
+    LanguageCodeEntry {{},         {'a', 'r', 'c'}, {'a', 'r', 'c'}, {'a', 'r', 'c'}}, // Aramaic
+    LanguageCodeEntry {{'h', 'y'}, {'a', 'r', 'm'}, {'h', 'y', 'e'}, {'h', 'y', 'e'}}, // Armenian
+    LanguageCodeEntry {{'a', 's'}, {'a', 's', 'm'}, {'a', 's', 'm'}, {'a', 's', 'm'}}, // Assamese
+    LanguageCodeEntry {{},         {'a', 's', 't'}, {'a', 's', 't'}, {'a', 's', 't'}}, // Asturian
+    LanguageCodeEntry {{},         {},              {},              {'a', 's', 'a'}}, // Asu
+    LanguageCodeEntry {{},         {},              {},              {'c', 'c', 'h'}}, // Atsam
+    LanguageCodeEntry {{'a', 'v'}, {'a', 'v', 'a'}, {'a', 'v', 'a'}, {'a', 'v', 'a'}}, // Avaric
+    LanguageCodeEntry {{'a', 'e'}, {'a', 'v', 'e'}, {'a', 'v', 'e'}, {'a', 'v', 'e'}}, // Avestan
+    LanguageCodeEntry {{'a', 'y'}, {'a', 'y', 'm'}, {'a', 'y', 'm'}, {'a', 'y', 'm'}}, // Aymara
+    LanguageCodeEntry {{'a', 'z'}, {'a', 'z', 'e'}, {'a', 'z', 'e'}, {'a', 'z', 'e'}}, // Azerbaijani
+    LanguageCodeEntry {{},         {},              {},              {'k', 's', 'f'}}, // Bafia
+    LanguageCodeEntry {{},         {'b', 'a', 'n'}, {'b', 'a', 'n'}, {'b', 'a', 'n'}}, // Balinese
+    LanguageCodeEntry {{'b', 'm'}, {'b', 'a', 'm'}, {'b', 'a', 'm'}, {'b', 'a', 'm'}}, // Bambara
+    LanguageCodeEntry {{},         {},              {},              {'b', 'a', 'x'}}, // Bamun
+    LanguageCodeEntry {{'b', 'n'}, {'b', 'e', 'n'}, {'b', 'e', 'n'}, {'b', 'e', 'n'}}, // Bangla
+    LanguageCodeEntry {{},         {'b', 'a', 's'}, {'b', 'a', 's'}, {'b', 'a', 's'}}, // Basaa
+    LanguageCodeEntry {{'b', 'a'}, {'b', 'a', 'k'}, {'b', 'a', 'k'}, {'b', 'a', 'k'}}, // Bashkir
+    LanguageCodeEntry {{'e', 'u'}, {'b', 'a', 'q'}, {'e', 'u', 's'}, {'e', 'u', 's'}}, // Basque
+    LanguageCodeEntry {{},         {},              {},              {'b', 'b', 'c'}}, // Batak Toba
+    LanguageCodeEntry {{'b', 'e'}, {'b', 'e', 'l'}, {'b', 'e', 'l'}, {'b', 'e', 'l'}}, // Belarusian
+    LanguageCodeEntry {{},         {'b', 'e', 'm'}, {'b', 'e', 'm'}, {'b', 'e', 'm'}}, // Bemba
+    LanguageCodeEntry {{},         {},              {},              {'b', 'e', 'z'}}, // Bena
+    LanguageCodeEntry {{},         {'b', 'h', 'o'}, {'b', 'h', 'o'}, {'b', 'h', 'o'}}, // Bhojpuri
+    LanguageCodeEntry {{'b', 'i'}, {'b', 'i', 's'}, {'b', 'i', 's'}, {'b', 'i', 's'}}, // Bislama
+    LanguageCodeEntry {{},         {'b', 'y', 'n'}, {'b', 'y', 'n'}, {'b', 'y', 'n'}}, // Blin
+    LanguageCodeEntry {{},         {},              {},              {'b', 'r', 'x'}}, // Bodo
+    LanguageCodeEntry {{'b', 's'}, {'b', 'o', 's'}, {'b', 'o', 's'}, {'b', 'o', 's'}}, // Bosnian
+    LanguageCodeEntry {{'b', 'r'}, {'b', 'r', 'e'}, {'b', 'r', 'e'}, {'b', 'r', 'e'}}, // Breton
+    LanguageCodeEntry {{},         {'b', 'u', 'g'}, {'b', 'u', 'g'}, {'b', 'u', 'g'}}, // Buginese
+    LanguageCodeEntry {{'b', 'g'}, {'b', 'u', 'l'}, {'b', 'u', 'l'}, {'b', 'u', 'l'}}, // Bulgarian
+    LanguageCodeEntry {{'m', 'y'}, {'b', 'u', 'r'}, {'m', 'y', 'a'}, {'m', 'y', 'a'}}, // Burmese
+    LanguageCodeEntry {{},         {},              {},              {'y', 'u', 'e'}}, // Cantonese
+    LanguageCodeEntry {{'c', 'a'}, {'c', 'a', 't'}, {'c', 'a', 't'}, {'c', 'a', 't'}}, // Catalan
+    LanguageCodeEntry {{},         {'c', 'e', 'b'}, {'c', 'e', 'b'}, {'c', 'e', 'b'}}, // Cebuano
+    LanguageCodeEntry {{},         {},              {},              {'t', 'z', 'm'}}, // Central Atlas Tamazight
+    LanguageCodeEntry {{},         {},              {},              {'c', 'k', 'b'}}, // Central Kurdish
+    LanguageCodeEntry {{},         {},              {},              {'c', 'c', 'p'}}, // Chakma
+    LanguageCodeEntry {{'c', 'h'}, {'c', 'h', 'a'}, {'c', 'h', 'a'}, {'c', 'h', 'a'}}, // Chamorro
+    LanguageCodeEntry {{'c', 'e'}, {'c', 'h', 'e'}, {'c', 'h', 'e'}, {'c', 'h', 'e'}}, // Chechen
+    LanguageCodeEntry {{},         {'c', 'h', 'r'}, {'c', 'h', 'r'}, {'c', 'h', 'r'}}, // Cherokee
+    LanguageCodeEntry {{},         {},              {},              {'c', 'i', 'c'}}, // Chickasaw
+    LanguageCodeEntry {{},         {},              {},              {'c', 'g', 'g'}}, // Chiga
+    LanguageCodeEntry {{'z', 'h'}, {'c', 'h', 'i'}, {'z', 'h', 'o'}, {'z', 'h', 'o'}}, // Chinese
+    LanguageCodeEntry {{'c', 'u'}, {'c', 'h', 'u'}, {'c', 'h', 'u'}, {'c', 'h', 'u'}}, // Church
+    LanguageCodeEntry {{'c', 'v'}, {'c', 'h', 'v'}, {'c', 'h', 'v'}, {'c', 'h', 'v'}}, // Chuvash
+    LanguageCodeEntry {{},         {},              {},              {'k', 's', 'h'}}, // Colognian
+    LanguageCodeEntry {{},         {'c', 'o', 'p'}, {'c', 'o', 'p'}, {'c', 'o', 'p'}}, // Coptic
+    LanguageCodeEntry {{'k', 'w'}, {'c', 'o', 'r'}, {'c', 'o', 'r'}, {'c', 'o', 'r'}}, // Cornish
+    LanguageCodeEntry {{'c', 'o'}, {'c', 'o', 's'}, {'c', 'o', 's'}, {'c', 'o', 's'}}, // Corsican
+    LanguageCodeEntry {{'c', 'r'}, {'c', 'r', 'e'}, {'c', 'r', 'e'}, {'c', 'r', 'e'}}, // Cree
+    LanguageCodeEntry {{'h', 'r'}, {'h', 'r', 'v'}, {'h', 'r', 'v'}, {'h', 'r', 'v'}}, // Croatian
+    LanguageCodeEntry {{'c', 's'}, {'c', 'z', 'e'}, {'c', 'e', 's'}, {'c', 'e', 's'}}, // Czech
+    LanguageCodeEntry {{'d', 'a'}, {'d', 'a', 'n'}, {'d', 'a', 'n'}, {'d', 'a', 'n'}}, // Danish
+    LanguageCodeEntry {{'d', 'v'}, {'d', 'i', 'v'}, {'d', 'i', 'v'}, {'d', 'i', 'v'}}, // Divehi
+    LanguageCodeEntry {{},         {'d', 'o', 'i'}, {'d', 'o', 'i'}, {'d', 'o', 'i'}}, // Dogri
+    LanguageCodeEntry {{},         {'d', 'u', 'a'}, {'d', 'u', 'a'}, {'d', 'u', 'a'}}, // Duala
+    LanguageCodeEntry {{'n', 'l'}, {'d', 'u', 't'}, {'n', 'l', 'd'}, {'n', 'l', 'd'}}, // Dutch
+    LanguageCodeEntry {{'d', 'z'}, {'d', 'z', 'o'}, {'d', 'z', 'o'}, {'d', 'z', 'o'}}, // Dzongkha
+    LanguageCodeEntry {{},         {},              {},              {'e', 'b', 'u'}}, // Embu
+    LanguageCodeEntry {{'e', 'n'}, {'e', 'n', 'g'}, {'e', 'n', 'g'}, {'e', 'n', 'g'}}, // English
+    LanguageCodeEntry {{},         {'m', 'y', 'v'}, {'m', 'y', 'v'}, {'m', 'y', 'v'}}, // Erzya
+    LanguageCodeEntry {{'e', 'o'}, {'e', 'p', 'o'}, {'e', 'p', 'o'}, {'e', 'p', 'o'}}, // Esperanto
+    LanguageCodeEntry {{'e', 't'}, {'e', 's', 't'}, {'e', 's', 't'}, {'e', 's', 't'}}, // Estonian
+    LanguageCodeEntry {{'e', 'e'}, {'e', 'w', 'e'}, {'e', 'w', 'e'}, {'e', 'w', 'e'}}, // Ewe
+    LanguageCodeEntry {{},         {'e', 'w', 'o'}, {'e', 'w', 'o'}, {'e', 'w', 'o'}}, // Ewondo
+    LanguageCodeEntry {{'f', 'o'}, {'f', 'a', 'o'}, {'f', 'a', 'o'}, {'f', 'a', 'o'}}, // Faroese
+    LanguageCodeEntry {{'f', 'j'}, {'f', 'i', 'j'}, {'f', 'i', 'j'}, {'f', 'i', 'j'}}, // Fijian
+    LanguageCodeEntry {{},         {'f', 'i', 'l'}, {'f', 'i', 'l'}, {'f', 'i', 'l'}}, // Filipino
+    LanguageCodeEntry {{'f', 'i'}, {'f', 'i', 'n'}, {'f', 'i', 'n'}, {'f', 'i', 'n'}}, // Finnish
+    LanguageCodeEntry {{'f', 'r'}, {'f', 'r', 'e'}, {'f', 'r', 'a'}, {'f', 'r', 'a'}}, // French
+    LanguageCodeEntry {{},         {'f', 'u', 'r'}, {'f', 'u', 'r'}, {'f', 'u', 'r'}}, // Friulian
+    LanguageCodeEntry {{'f', 'f'}, {'f', 'u', 'l'}, {'f', 'u', 'l'}, {'f', 'u', 'l'}}, // Fulah
+    LanguageCodeEntry {{'g', 'd'}, {'g', 'l', 'a'}, {'g', 'l', 'a'}, {'g', 'l', 'a'}}, // Gaelic
+    LanguageCodeEntry {{},         {'g', 'a', 'a'}, {'g', 'a', 'a'}, {'g', 'a', 'a'}}, // Ga
+    LanguageCodeEntry {{'g', 'l'}, {'g', 'l', 'g'}, {'g', 'l', 'g'}, {'g', 'l', 'g'}}, // Galician
+    LanguageCodeEntry {{'l', 'g'}, {'l', 'u', 'g'}, {'l', 'u', 'g'}, {'l', 'u', 'g'}}, // Ganda
+    LanguageCodeEntry {{},         {'g', 'e', 'z'}, {'g', 'e', 'z'}, {'g', 'e', 'z'}}, // Geez
+    LanguageCodeEntry {{'k', 'a'}, {'g', 'e', 'o'}, {'k', 'a', 't'}, {'k', 'a', 't'}}, // Georgian
+    LanguageCodeEntry {{'d', 'e'}, {'g', 'e', 'r'}, {'d', 'e', 'u'}, {'d', 'e', 'u'}}, // German
+    LanguageCodeEntry {{},         {'g', 'o', 't'}, {'g', 'o', 't'}, {'g', 'o', 't'}}, // Gothic
+    LanguageCodeEntry {{'e', 'l'}, {'g', 'r', 'e'}, {'e', 'l', 'l'}, {'e', 'l', 'l'}}, // Greek
+    LanguageCodeEntry {{'g', 'n'}, {'g', 'r', 'n'}, {'g', 'r', 'n'}, {'g', 'r', 'n'}}, // Guarani
+    LanguageCodeEntry {{'g', 'u'}, {'g', 'u', 'j'}, {'g', 'u', 'j'}, {'g', 'u', 'j'}}, // Gujarati
+    LanguageCodeEntry {{},         {},              {},              {'g', 'u', 'z'}}, // Gusii
+    LanguageCodeEntry {{'h', 't'}, {'h', 'a', 't'}, {'h', 'a', 't'}, {'h', 'a', 't'}}, // Haitian
+    LanguageCodeEntry {{'h', 'a'}, {'h', 'a', 'u'}, {'h', 'a', 'u'}, {'h', 'a', 'u'}}, // Hausa
+    LanguageCodeEntry {{},         {'h', 'a', 'w'}, {'h', 'a', 'w'}, {'h', 'a', 'w'}}, // Hawaiian
+    LanguageCodeEntry {{'h', 'e'}, {'h', 'e', 'b'}, {'h', 'e', 'b'}, {'h', 'e', 'b'}}, // Hebrew
+    LanguageCodeEntry {{'h', 'z'}, {'h', 'e', 'r'}, {'h', 'e', 'r'}, {'h', 'e', 'r'}}, // Herero
+    LanguageCodeEntry {{'h', 'i'}, {'h', 'i', 'n'}, {'h', 'i', 'n'}, {'h', 'i', 'n'}}, // Hindi
+    LanguageCodeEntry {{'h', 'o'}, {'h', 'm', 'o'}, {'h', 'm', 'o'}, {'h', 'm', 'o'}}, // Hiri Motu
+    LanguageCodeEntry {{'h', 'u'}, {'h', 'u', 'n'}, {'h', 'u', 'n'}, {'h', 'u', 'n'}}, // Hungarian
+    LanguageCodeEntry {{'i', 's'}, {'i', 'c', 'e'}, {'i', 's', 'l'}, {'i', 's', 'l'}}, // Icelandic
+    LanguageCodeEntry {{'i', 'o'}, {'i', 'd', 'o'}, {'i', 'd', 'o'}, {'i', 'd', 'o'}}, // Ido
+    LanguageCodeEntry {{'i', 'g'}, {'i', 'b', 'o'}, {'i', 'b', 'o'}, {'i', 'b', 'o'}}, // Igbo
+    LanguageCodeEntry {{},         {'s', 'm', 'n'}, {'s', 'm', 'n'}, {'s', 'm', 'n'}}, // Inari Sami
+    LanguageCodeEntry {{'i', 'd'}, {'i', 'n', 'd'}, {'i', 'n', 'd'}, {'i', 'n', 'd'}}, // Indonesian
+    LanguageCodeEntry {{},         {'i', 'n', 'h'}, {'i', 'n', 'h'}, {'i', 'n', 'h'}}, // Ingush
+    LanguageCodeEntry {{'i', 'a'}, {'i', 'n', 'a'}, {'i', 'n', 'a'}, {'i', 'n', 'a'}}, // Interlingua
+    LanguageCodeEntry {{'i', 'e'}, {'i', 'l', 'e'}, {'i', 'l', 'e'}, {'i', 'l', 'e'}}, // Interlingue
+    LanguageCodeEntry {{'i', 'u'}, {'i', 'k', 'u'}, {'i', 'k', 'u'}, {'i', 'k', 'u'}}, // Inuktitut
+    LanguageCodeEntry {{'i', 'k'}, {'i', 'p', 'k'}, {'i', 'p', 'k'}, {'i', 'p', 'k'}}, // Inupiaq
+    LanguageCodeEntry {{'g', 'a'}, {'g', 'l', 'e'}, {'g', 'l', 'e'}, {'g', 'l', 'e'}}, // Irish
+    LanguageCodeEntry {{'i', 't'}, {'i', 't', 'a'}, {'i', 't', 'a'}, {'i', 't', 'a'}}, // Italian
+    LanguageCodeEntry {{'j', 'a'}, {'j', 'p', 'n'}, {'j', 'p', 'n'}, {'j', 'p', 'n'}}, // Japanese
+    LanguageCodeEntry {{'j', 'v'}, {'j', 'a', 'v'}, {'j', 'a', 'v'}, {'j', 'a', 'v'}}, // Javanese
+    LanguageCodeEntry {{},         {},              {},              {'k', 'a', 'j'}}, // Jju
+    LanguageCodeEntry {{},         {},              {},              {'d', 'y', 'o'}}, // Jola Fonyi
+    LanguageCodeEntry {{},         {},              {},              {'k', 'e', 'a'}}, // Kabuverdianu
+    LanguageCodeEntry {{},         {'k', 'a', 'b'}, {'k', 'a', 'b'}, {'k', 'a', 'b'}}, // Kabyle
+    LanguageCodeEntry {{},         {},              {},              {'k', 'k', 'j'}}, // Kako
+    LanguageCodeEntry {{'k', 'l'}, {'k', 'a', 'l'}, {'k', 'a', 'l'}, {'k', 'a', 'l'}}, // Kalaallisut
+    LanguageCodeEntry {{},         {},              {},              {'k', 'l', 'n'}}, // Kalenjin
+    LanguageCodeEntry {{},         {'k', 'a', 'm'}, {'k', 'a', 'm'}, {'k', 'a', 'm'}}, // Kamba
+    LanguageCodeEntry {{'k', 'n'}, {'k', 'a', 'n'}, {'k', 'a', 'n'}, {'k', 'a', 'n'}}, // Kannada
+    LanguageCodeEntry {{'k', 'r'}, {'k', 'a', 'u'}, {'k', 'a', 'u'}, {'k', 'a', 'u'}}, // Kanuri
+    LanguageCodeEntry {{'k', 's'}, {'k', 'a', 's'}, {'k', 'a', 's'}, {'k', 'a', 's'}}, // Kashmiri
+    LanguageCodeEntry {{'k', 'k'}, {'k', 'a', 'z'}, {'k', 'a', 'z'}, {'k', 'a', 'z'}}, // Kazakh
+    LanguageCodeEntry {{},         {},              {},              {'k', 'e', 'n'}}, // Kenyang
+    LanguageCodeEntry {{'k', 'm'}, {'k', 'h', 'm'}, {'k', 'h', 'm'}, {'k', 'h', 'm'}}, // Khmer
+    LanguageCodeEntry {{},         {},              {},              {'q', 'u', 'c'}}, // Kiche
+    LanguageCodeEntry {{'k', 'i'}, {'k', 'i', 'k'}, {'k', 'i', 'k'}, {'k', 'i', 'k'}}, // Kikuyu
+    LanguageCodeEntry {{'r', 'w'}, {'k', 'i', 'n'}, {'k', 'i', 'n'}, {'k', 'i', 'n'}}, // Kinyarwanda
+    LanguageCodeEntry {{'k', 'v'}, {'k', 'o', 'm'}, {'k', 'o', 'm'}, {'k', 'o', 'm'}}, // Komi
+    LanguageCodeEntry {{'k', 'g'}, {'k', 'o', 'n'}, {'k', 'o', 'n'}, {'k', 'o', 'n'}}, // Kongo
+    LanguageCodeEntry {{},         {'k', 'o', 'k'}, {'k', 'o', 'k'}, {'k', 'o', 'k'}}, // Konkani
+    LanguageCodeEntry {{'k', 'o'}, {'k', 'o', 'r'}, {'k', 'o', 'r'}, {'k', 'o', 'r'}}, // Korean
+    LanguageCodeEntry {{},         {},              {},              {'k', 'f', 'o'}}, // Koro
+    LanguageCodeEntry {{},         {},              {},              {'s', 'e', 's'}}, // Koyraboro Senni
+    LanguageCodeEntry {{},         {},              {},              {'k', 'h', 'q'}}, // Koyra Chiini
+    LanguageCodeEntry {{},         {'k', 'p', 'e'}, {'k', 'p', 'e'}, {'k', 'p', 'e'}}, // Kpelle
+    LanguageCodeEntry {{'k', 'j'}, {'k', 'u', 'a'}, {'k', 'u', 'a'}, {'k', 'u', 'a'}}, // Kuanyama
+    LanguageCodeEntry {{'k', 'u'}, {'k', 'u', 'r'}, {'k', 'u', 'r'}, {'k', 'u', 'r'}}, // Kurdish
+    LanguageCodeEntry {{},         {},              {},              {'n', 'm', 'g'}}, // Kwasio
+    LanguageCodeEntry {{'k', 'y'}, {'k', 'i', 'r'}, {'k', 'i', 'r'}, {'k', 'i', 'r'}}, // Kyrgyz
+    LanguageCodeEntry {{},         {},              {},              {'l', 'k', 't'}}, // Lakota
+    LanguageCodeEntry {{},         {},              {},              {'l', 'a', 'g'}}, // Langi
+    LanguageCodeEntry {{'l', 'o'}, {'l', 'a', 'o'}, {'l', 'a', 'o'}, {'l', 'a', 'o'}}, // Lao
+    LanguageCodeEntry {{'l', 'a'}, {'l', 'a', 't'}, {'l', 'a', 't'}, {'l', 'a', 't'}}, // Latin
+    LanguageCodeEntry {{'l', 'v'}, {'l', 'a', 'v'}, {'l', 'a', 'v'}, {'l', 'a', 'v'}}, // Latvian
+    LanguageCodeEntry {{},         {'l', 'e', 'z'}, {'l', 'e', 'z'}, {'l', 'e', 'z'}}, // Lezghian
+    LanguageCodeEntry {{'l', 'i'}, {'l', 'i', 'm'}, {'l', 'i', 'm'}, {'l', 'i', 'm'}}, // Limburgish
+    LanguageCodeEntry {{'l', 'n'}, {'l', 'i', 'n'}, {'l', 'i', 'n'}, {'l', 'i', 'n'}}, // Lingala
+    LanguageCodeEntry {{},         {},              {},              {'l', 'z', 'h'}}, // Literary Chinese
+    LanguageCodeEntry {{'l', 't'}, {'l', 'i', 't'}, {'l', 'i', 't'}, {'l', 'i', 't'}}, // Lithuanian
+    LanguageCodeEntry {{},         {'j', 'b', 'o'}, {'j', 'b', 'o'}, {'j', 'b', 'o'}}, // Lojban
+    LanguageCodeEntry {{},         {'d', 's', 'b'}, {'d', 's', 'b'}, {'d', 's', 'b'}}, // Lower Sorbian
+    LanguageCodeEntry {{},         {'n', 'd', 's'}, {'n', 'd', 's'}, {'n', 'd', 's'}}, // Low German
+    LanguageCodeEntry {{'l', 'u'}, {'l', 'u', 'b'}, {'l', 'u', 'b'}, {'l', 'u', 'b'}}, // Luba Katanga
+    LanguageCodeEntry {{},         {'s', 'm', 'j'}, {'s', 'm', 'j'}, {'s', 'm', 'j'}}, // Lule Sami
+    LanguageCodeEntry {{},         {'l', 'u', 'o'}, {'l', 'u', 'o'}, {'l', 'u', 'o'}}, // Luo
+    LanguageCodeEntry {{'l', 'b'}, {'l', 't', 'z'}, {'l', 't', 'z'}, {'l', 't', 'z'}}, // Luxembourgish
+    LanguageCodeEntry {{},         {},              {},              {'l', 'u', 'y'}}, // Luyia
+    LanguageCodeEntry {{'m', 'k'}, {'m', 'a', 'c'}, {'m', 'k', 'd'}, {'m', 'k', 'd'}}, // Macedonian
+    LanguageCodeEntry {{},         {},              {},              {'j', 'm', 'c'}}, // Machame
+    LanguageCodeEntry {{},         {'m', 'a', 'i'}, {'m', 'a', 'i'}, {'m', 'a', 'i'}}, // Maithili
+    LanguageCodeEntry {{},         {},              {},              {'m', 'g', 'h'}}, // Makhuwa Meetto
+    LanguageCodeEntry {{},         {},              {},              {'k', 'd', 'e'}}, // Makonde
+    LanguageCodeEntry {{'m', 'g'}, {'m', 'l', 'g'}, {'m', 'l', 'g'}, {'m', 'l', 'g'}}, // Malagasy
+    LanguageCodeEntry {{'m', 'l'}, {'m', 'a', 'l'}, {'m', 'a', 'l'}, {'m', 'a', 'l'}}, // Malayalam
+    LanguageCodeEntry {{'m', 's'}, {'m', 'a', 'y'}, {'m', 's', 'a'}, {'m', 's', 'a'}}, // Malay
+    LanguageCodeEntry {{'m', 't'}, {'m', 'l', 't'}, {'m', 'l', 't'}, {'m', 'l', 't'}}, // Maltese
+    LanguageCodeEntry {{},         {'m', 'a', 'n'}, {'m', 'a', 'n'}, {'m', 'a', 'n'}}, // Mandingo
+    LanguageCodeEntry {{},         {'m', 'n', 'i'}, {'m', 'n', 'i'}, {'m', 'n', 'i'}}, // Manipuri
+    LanguageCodeEntry {{'g', 'v'}, {'g', 'l', 'v'}, {'g', 'l', 'v'}, {'g', 'l', 'v'}}, // Manx
+    LanguageCodeEntry {{'m', 'i'}, {'m', 'a', 'o'}, {'m', 'r', 'i'}, {'m', 'r', 'i'}}, // Maori
+    LanguageCodeEntry {{},         {'a', 'r', 'n'}, {'a', 'r', 'n'}, {'a', 'r', 'n'}}, // Mapuche
+    LanguageCodeEntry {{'m', 'r'}, {'m', 'a', 'r'}, {'m', 'a', 'r'}, {'m', 'a', 'r'}}, // Marathi
+    LanguageCodeEntry {{'m', 'h'}, {'m', 'a', 'h'}, {'m', 'a', 'h'}, {'m', 'a', 'h'}}, // Marshallese
+    LanguageCodeEntry {{},         {'m', 'a', 's'}, {'m', 'a', 's'}, {'m', 'a', 's'}}, // Masai
+    LanguageCodeEntry {{},         {},              {},              {'m', 'z', 'n'}}, // Mazanderani
+    LanguageCodeEntry {{},         {'m', 'e', 'n'}, {'m', 'e', 'n'}, {'m', 'e', 'n'}}, // Mende
+    LanguageCodeEntry {{},         {},              {},              {'m', 'e', 'r'}}, // Meru
+    LanguageCodeEntry {{},         {},              {},              {'m', 'g', 'o'}}, // Meta
+    LanguageCodeEntry {{},         {'m', 'o', 'h'}, {'m', 'o', 'h'}, {'m', 'o', 'h'}}, // Mohawk
+    LanguageCodeEntry {{'m', 'n'}, {'m', 'o', 'n'}, {'m', 'o', 'n'}, {'m', 'o', 'n'}}, // Mongolian
+    LanguageCodeEntry {{},         {},              {},              {'m', 'f', 'e'}}, // Morisyen
+    LanguageCodeEntry {{},         {},              {},              {'m', 'u', 'a'}}, // Mundang
+    LanguageCodeEntry {{},         {'m', 'u', 's'}, {'m', 'u', 's'}, {'m', 'u', 's'}}, // Muscogee
+    LanguageCodeEntry {{},         {},              {},              {'n', 'a', 'q'}}, // Nama
+    LanguageCodeEntry {{'n', 'a'}, {'n', 'a', 'u'}, {'n', 'a', 'u'}, {'n', 'a', 'u'}}, // Nauru
+    LanguageCodeEntry {{'n', 'v'}, {'n', 'a', 'v'}, {'n', 'a', 'v'}, {'n', 'a', 'v'}}, // Navajo
+    LanguageCodeEntry {{'n', 'g'}, {'n', 'd', 'o'}, {'n', 'd', 'o'}, {'n', 'd', 'o'}}, // Ndonga
+    LanguageCodeEntry {{'n', 'e'}, {'n', 'e', 'p'}, {'n', 'e', 'p'}, {'n', 'e', 'p'}}, // Nepali
+    LanguageCodeEntry {{},         {'n', 'e', 'w'}, {'n', 'e', 'w'}, {'n', 'e', 'w'}}, // Newari
+    LanguageCodeEntry {{},         {},              {},              {'n', 'n', 'h'}}, // Ngiemboon
+    LanguageCodeEntry {{},         {},              {},              {'j', 'g', 'o'}}, // Ngomba
+    LanguageCodeEntry {{},         {},              {},              {'p', 'c', 'm'}}, // Nigerian Pidgin
+    LanguageCodeEntry {{},         {'n', 'q', 'o'}, {'n', 'q', 'o'}, {'n', 'q', 'o'}}, // Nko
+    LanguageCodeEntry {{},         {},              {},              {'l', 'r', 'c'}}, // Northern Luri
+    LanguageCodeEntry {{'s', 'e'}, {'s', 'm', 'e'}, {'s', 'm', 'e'}, {'s', 'm', 'e'}}, // Northern Sami
+    LanguageCodeEntry {{},         {'n', 's', 'o'}, {'n', 's', 'o'}, {'n', 's', 'o'}}, // Northern Sotho
+    LanguageCodeEntry {{'n', 'd'}, {'n', 'd', 'e'}, {'n', 'd', 'e'}, {'n', 'd', 'e'}}, // North Ndebele
+    LanguageCodeEntry {{'n', 'b'}, {'n', 'o', 'b'}, {'n', 'o', 'b'}, {'n', 'o', 'b'}}, // Norwegian Bokmal
+    LanguageCodeEntry {{'n', 'n'}, {'n', 'n', 'o'}, {'n', 'n', 'o'}, {'n', 'n', 'o'}}, // Norwegian Nynorsk
+    LanguageCodeEntry {{},         {},              {},              {'n', 'u', 's'}}, // Nuer
+    LanguageCodeEntry {{'n', 'y'}, {'n', 'y', 'a'}, {'n', 'y', 'a'}, {'n', 'y', 'a'}}, // Nyanja
+    LanguageCodeEntry {{},         {'n', 'y', 'n'}, {'n', 'y', 'n'}, {'n', 'y', 'n'}}, // Nyankole
+    LanguageCodeEntry {{'o', 'c'}, {'o', 'c', 'i'}, {'o', 'c', 'i'}, {'o', 'c', 'i'}}, // Occitan
+    LanguageCodeEntry {{'o', 'r'}, {'o', 'r', 'i'}, {'o', 'r', 'i'}, {'o', 'r', 'i'}}, // Odia
+    LanguageCodeEntry {{'o', 'j'}, {'o', 'j', 'i'}, {'o', 'j', 'i'}, {'o', 'j', 'i'}}, // Ojibwa
+    LanguageCodeEntry {{},         {'s', 'g', 'a'}, {'s', 'g', 'a'}, {'s', 'g', 'a'}}, // Old Irish
+    LanguageCodeEntry {{},         {'n', 'o', 'n'}, {'n', 'o', 'n'}, {'n', 'o', 'n'}}, // Old Norse
+    LanguageCodeEntry {{},         {'p', 'e', 'o'}, {'p', 'e', 'o'}, {'p', 'e', 'o'}}, // Old Persian
+    LanguageCodeEntry {{'o', 'm'}, {'o', 'r', 'm'}, {'o', 'r', 'm'}, {'o', 'r', 'm'}}, // Oromo
+    LanguageCodeEntry {{},         {'o', 's', 'a'}, {'o', 's', 'a'}, {'o', 's', 'a'}}, // Osage
+    LanguageCodeEntry {{'o', 's'}, {'o', 's', 's'}, {'o', 's', 's'}, {'o', 's', 's'}}, // Ossetic
+    LanguageCodeEntry {{},         {'p', 'a', 'l'}, {'p', 'a', 'l'}, {'p', 'a', 'l'}}, // Pahlavi
+    LanguageCodeEntry {{},         {'p', 'a', 'u'}, {'p', 'a', 'u'}, {'p', 'a', 'u'}}, // Palauan
+    LanguageCodeEntry {{'p', 'i'}, {'p', 'l', 'i'}, {'p', 'l', 'i'}, {'p', 'l', 'i'}}, // Pali
+    LanguageCodeEntry {{},         {'p', 'a', 'p'}, {'p', 'a', 'p'}, {'p', 'a', 'p'}}, // Papiamento
+    LanguageCodeEntry {{'p', 's'}, {'p', 'u', 's'}, {'p', 'u', 's'}, {'p', 'u', 's'}}, // Pashto
+    LanguageCodeEntry {{'f', 'a'}, {'p', 'e', 'r'}, {'f', 'a', 's'}, {'f', 'a', 's'}}, // Persian
+    LanguageCodeEntry {{},         {'p', 'h', 'n'}, {'p', 'h', 'n'}, {'p', 'h', 'n'}}, // Phoenician
+    LanguageCodeEntry {{'p', 'l'}, {'p', 'o', 'l'}, {'p', 'o', 'l'}, {'p', 'o', 'l'}}, // Polish
+    LanguageCodeEntry {{'p', 't'}, {'p', 'o', 'r'}, {'p', 'o', 'r'}, {'p', 'o', 'r'}}, // Portuguese
+    LanguageCodeEntry {{},         {},              {},              {'p', 'r', 'g'}}, // Prussian
+    LanguageCodeEntry {{'p', 'a'}, {'p', 'a', 'n'}, {'p', 'a', 'n'}, {'p', 'a', 'n'}}, // Punjabi
+    LanguageCodeEntry {{'q', 'u'}, {'q', 'u', 'e'}, {'q', 'u', 'e'}, {'q', 'u', 'e'}}, // Quechua
+    LanguageCodeEntry {{'r', 'o'}, {'r', 'u', 'm'}, {'r', 'o', 'n'}, {'r', 'o', 'n'}}, // Romanian
+    LanguageCodeEntry {{'r', 'm'}, {'r', 'o', 'h'}, {'r', 'o', 'h'}, {'r', 'o', 'h'}}, // Romansh
+    LanguageCodeEntry {{},         {},              {},              {'r', 'o', 'f'}}, // Rombo
+    LanguageCodeEntry {{'r', 'n'}, {'r', 'u', 'n'}, {'r', 'u', 'n'}, {'r', 'u', 'n'}}, // Rundi
+    LanguageCodeEntry {{'r', 'u'}, {'r', 'u', 's'}, {'r', 'u', 's'}, {'r', 'u', 's'}}, // Russian
+    LanguageCodeEntry {{},         {},              {},              {'r', 'w', 'k'}}, // Rwa
+    LanguageCodeEntry {{},         {},              {},              {'s', 's', 'y'}}, // Saho
+    LanguageCodeEntry {{},         {'s', 'a', 'h'}, {'s', 'a', 'h'}, {'s', 'a', 'h'}}, // Sakha
+    LanguageCodeEntry {{},         {},              {},              {'s', 'a', 'q'}}, // Samburu
+    LanguageCodeEntry {{'s', 'm'}, {'s', 'm', 'o'}, {'s', 'm', 'o'}, {'s', 'm', 'o'}}, // Samoan
+    LanguageCodeEntry {{'s', 'g'}, {'s', 'a', 'g'}, {'s', 'a', 'g'}, {'s', 'a', 'g'}}, // Sango
+    LanguageCodeEntry {{},         {},              {},              {'s', 'b', 'p'}}, // Sangu
+    LanguageCodeEntry {{'s', 'a'}, {'s', 'a', 'n'}, {'s', 'a', 'n'}, {'s', 'a', 'n'}}, // Sanskrit
+    LanguageCodeEntry {{},         {'s', 'a', 't'}, {'s', 'a', 't'}, {'s', 'a', 't'}}, // Santali
+    LanguageCodeEntry {{'s', 'c'}, {'s', 'r', 'd'}, {'s', 'r', 'd'}, {'s', 'r', 'd'}}, // Sardinian
+    LanguageCodeEntry {{},         {},              {},              {'s', 'a', 'z'}}, // Saurashtra
+    LanguageCodeEntry {{},         {},              {},              {'s', 'e', 'h'}}, // Sena
+    LanguageCodeEntry {{'s', 'r'}, {'s', 'r', 'p'}, {'s', 'r', 'p'}, {'s', 'r', 'p'}}, // Serbian
+    LanguageCodeEntry {{},         {},              {},              {'k', 's', 'b'}}, // Shambala
+    LanguageCodeEntry {{'s', 'n'}, {'s', 'n', 'a'}, {'s', 'n', 'a'}, {'s', 'n', 'a'}}, // Shona
+    LanguageCodeEntry {{'i', 'i'}, {'i', 'i', 'i'}, {'i', 'i', 'i'}, {'i', 'i', 'i'}}, // Sichuan Yi
+    LanguageCodeEntry {{},         {'s', 'c', 'n'}, {'s', 'c', 'n'}, {'s', 'c', 'n'}}, // Sicilian
+    LanguageCodeEntry {{},         {'s', 'i', 'd'}, {'s', 'i', 'd'}, {'s', 'i', 'd'}}, // Sidamo
+    LanguageCodeEntry {{},         {},              {},              {'s', 'z', 'l'}}, // Silesian
+    LanguageCodeEntry {{'s', 'd'}, {'s', 'n', 'd'}, {'s', 'n', 'd'}, {'s', 'n', 'd'}}, // Sindhi
+    LanguageCodeEntry {{'s', 'i'}, {'s', 'i', 'n'}, {'s', 'i', 'n'}, {'s', 'i', 'n'}}, // Sinhala
+    LanguageCodeEntry {{},         {'s', 'm', 's'}, {'s', 'm', 's'}, {'s', 'm', 's'}}, // Skolt Sami
+    LanguageCodeEntry {{'s', 'k'}, {'s', 'l', 'o'}, {'s', 'l', 'k'}, {'s', 'l', 'k'}}, // Slovak
+    LanguageCodeEntry {{'s', 'l'}, {'s', 'l', 'v'}, {'s', 'l', 'v'}, {'s', 'l', 'v'}}, // Slovenian
+    LanguageCodeEntry {{},         {},              {},              {'x', 'o', 'g'}}, // Soga
+    LanguageCodeEntry {{'s', 'o'}, {'s', 'o', 'm'}, {'s', 'o', 'm'}, {'s', 'o', 'm'}}, // Somali
+    LanguageCodeEntry {{},         {},              {},              {'s', 'd', 'h'}}, // Southern Kurdish
+    LanguageCodeEntry {{},         {'s', 'm', 'a'}, {'s', 'm', 'a'}, {'s', 'm', 'a'}}, // Southern Sami
+    LanguageCodeEntry {{'s', 't'}, {'s', 'o', 't'}, {'s', 'o', 't'}, {'s', 'o', 't'}}, // Southern Sotho
+    LanguageCodeEntry {{'n', 'r'}, {'n', 'b', 'l'}, {'n', 'b', 'l'}, {'n', 'b', 'l'}}, // South Ndebele
+    LanguageCodeEntry {{'e', 's'}, {'s', 'p', 'a'}, {'s', 'p', 'a'}, {'s', 'p', 'a'}}, // Spanish
+    LanguageCodeEntry {{},         {'z', 'g', 'h'}, {'z', 'g', 'h'}, {'z', 'g', 'h'}}, // Standard Moroccan Tamazight
+    LanguageCodeEntry {{'s', 'u'}, {'s', 'u', 'n'}, {'s', 'u', 'n'}, {'s', 'u', 'n'}}, // Sundanese
+    LanguageCodeEntry {{'s', 'w'}, {'s', 'w', 'a'}, {'s', 'w', 'a'}, {'s', 'w', 'a'}}, // Swahili
+    LanguageCodeEntry {{'s', 's'}, {'s', 's', 'w'}, {'s', 's', 'w'}, {'s', 's', 'w'}}, // Swati
+    LanguageCodeEntry {{'s', 'v'}, {'s', 'w', 'e'}, {'s', 'w', 'e'}, {'s', 'w', 'e'}}, // Swedish
+    LanguageCodeEntry {{},         {'g', 's', 'w'}, {'g', 's', 'w'}, {'g', 's', 'w'}}, // Swiss German
+    LanguageCodeEntry {{},         {'s', 'y', 'r'}, {'s', 'y', 'r'}, {'s', 'y', 'r'}}, // Syriac
+    LanguageCodeEntry {{},         {},              {},              {'s', 'h', 'i'}}, // Tachelhit
+    LanguageCodeEntry {{'t', 'y'}, {'t', 'a', 'h'}, {'t', 'a', 'h'}, {'t', 'a', 'h'}}, // Tahitian
+    LanguageCodeEntry {{},         {},              {},              {'b', 'l', 't'}}, // Tai Dam
+    LanguageCodeEntry {{},         {},              {},              {'d', 'a', 'v'}}, // Taita
+    LanguageCodeEntry {{'t', 'g'}, {'t', 'g', 'k'}, {'t', 'g', 'k'}, {'t', 'g', 'k'}}, // Tajik
+    LanguageCodeEntry {{'t', 'a'}, {'t', 'a', 'm'}, {'t', 'a', 'm'}, {'t', 'a', 'm'}}, // Tamil
+    LanguageCodeEntry {{},         {},              {},              {'t', 'r', 'v'}}, // Taroko
+    LanguageCodeEntry {{},         {},              {},              {'t', 'w', 'q'}}, // Tasawaq
+    LanguageCodeEntry {{'t', 't'}, {'t', 'a', 't'}, {'t', 'a', 't'}, {'t', 'a', 't'}}, // Tatar
+    LanguageCodeEntry {{'t', 'e'}, {'t', 'e', 'l'}, {'t', 'e', 'l'}, {'t', 'e', 'l'}}, // Telugu
+    LanguageCodeEntry {{},         {},              {},              {'t', 'e', 'o'}}, // Teso
+    LanguageCodeEntry {{'t', 'h'}, {'t', 'h', 'a'}, {'t', 'h', 'a'}, {'t', 'h', 'a'}}, // Thai
+    LanguageCodeEntry {{'b', 'o'}, {'t', 'i', 'b'}, {'b', 'o', 'd'}, {'b', 'o', 'd'}}, // Tibetan
+    LanguageCodeEntry {{},         {'t', 'i', 'g'}, {'t', 'i', 'g'}, {'t', 'i', 'g'}}, // Tigre
+    LanguageCodeEntry {{'t', 'i'}, {'t', 'i', 'r'}, {'t', 'i', 'r'}, {'t', 'i', 'r'}}, // Tigrinya
+    LanguageCodeEntry {{},         {'t', 'k', 'l'}, {'t', 'k', 'l'}, {'t', 'k', 'l'}}, // Tokelau
+    LanguageCodeEntry {{},         {'t', 'p', 'i'}, {'t', 'p', 'i'}, {'t', 'p', 'i'}}, // Tok Pisin
+    LanguageCodeEntry {{'t', 'o'}, {'t', 'o', 'n'}, {'t', 'o', 'n'}, {'t', 'o', 'n'}}, // Tongan
+    LanguageCodeEntry {{'t', 's'}, {'t', 's', 'o'}, {'t', 's', 'o'}, {'t', 's', 'o'}}, // Tsonga
+    LanguageCodeEntry {{'t', 'n'}, {'t', 's', 'n'}, {'t', 's', 'n'}, {'t', 's', 'n'}}, // Tswana
+    LanguageCodeEntry {{'t', 'r'}, {'t', 'u', 'r'}, {'t', 'u', 'r'}, {'t', 'u', 'r'}}, // Turkish
+    LanguageCodeEntry {{'t', 'k'}, {'t', 'u', 'k'}, {'t', 'u', 'k'}, {'t', 'u', 'k'}}, // Turkmen
+    LanguageCodeEntry {{},         {'t', 'v', 'l'}, {'t', 'v', 'l'}, {'t', 'v', 'l'}}, // Tuvalu
+    LanguageCodeEntry {{},         {},              {},              {'k', 'c', 'g'}}, // Tyap
+    LanguageCodeEntry {{},         {'u', 'g', 'a'}, {'u', 'g', 'a'}, {'u', 'g', 'a'}}, // Ugaritic
+    LanguageCodeEntry {{'u', 'k'}, {'u', 'k', 'r'}, {'u', 'k', 'r'}, {'u', 'k', 'r'}}, // Ukrainian
+    LanguageCodeEntry {{},         {'h', 's', 'b'}, {'h', 's', 'b'}, {'h', 's', 'b'}}, // Upper Sorbian
+    LanguageCodeEntry {{'u', 'r'}, {'u', 'r', 'd'}, {'u', 'r', 'd'}, {'u', 'r', 'd'}}, // Urdu
+    LanguageCodeEntry {{'u', 'g'}, {'u', 'i', 'g'}, {'u', 'i', 'g'}, {'u', 'i', 'g'}}, // Uyghur
+    LanguageCodeEntry {{'u', 'z'}, {'u', 'z', 'b'}, {'u', 'z', 'b'}, {'u', 'z', 'b'}}, // Uzbek
+    LanguageCodeEntry {{},         {'v', 'a', 'i'}, {'v', 'a', 'i'}, {'v', 'a', 'i'}}, // Vai
+    LanguageCodeEntry {{'v', 'e'}, {'v', 'e', 'n'}, {'v', 'e', 'n'}, {'v', 'e', 'n'}}, // Venda
+    LanguageCodeEntry {{'v', 'i'}, {'v', 'i', 'e'}, {'v', 'i', 'e'}, {'v', 'i', 'e'}}, // Vietnamese
+    LanguageCodeEntry {{'v', 'o'}, {'v', 'o', 'l'}, {'v', 'o', 'l'}, {'v', 'o', 'l'}}, // Volapuk
+    LanguageCodeEntry {{},         {},              {},              {'v', 'u', 'n'}}, // Vunjo
+    LanguageCodeEntry {{'w', 'a'}, {'w', 'l', 'n'}, {'w', 'l', 'n'}, {'w', 'l', 'n'}}, // Walloon
+    LanguageCodeEntry {{},         {},              {},              {'w', 'a', 'e'}}, // Walser
+    LanguageCodeEntry {{},         {},              {},              {'w', 'b', 'p'}}, // Warlpiri
+    LanguageCodeEntry {{'c', 'y'}, {'w', 'e', 'l'}, {'c', 'y', 'm'}, {'c', 'y', 'm'}}, // Welsh
+    LanguageCodeEntry {{},         {},              {},              {'b', 'g', 'n'}}, // Western Balochi
+    LanguageCodeEntry {{'f', 'y'}, {'f', 'r', 'y'}, {'f', 'r', 'y'}, {'f', 'r', 'y'}}, // Western Frisian
+    LanguageCodeEntry {{},         {'w', 'a', 'l'}, {'w', 'a', 'l'}, {'w', 'a', 'l'}}, // Wolaytta
+    LanguageCodeEntry {{'w', 'o'}, {'w', 'o', 'l'}, {'w', 'o', 'l'}, {'w', 'o', 'l'}}, // Wolof
+    LanguageCodeEntry {{'x', 'h'}, {'x', 'h', 'o'}, {'x', 'h', 'o'}, {'x', 'h', 'o'}}, // Xhosa
+    LanguageCodeEntry {{},         {},              {},              {'y', 'a', 'v'}}, // Yangben
+    LanguageCodeEntry {{'y', 'i'}, {'y', 'i', 'd'}, {'y', 'i', 'd'}, {'y', 'i', 'd'}}, // Yiddish
+    LanguageCodeEntry {{'y', 'o'}, {'y', 'o', 'r'}, {'y', 'o', 'r'}, {'y', 'o', 'r'}}, // Yoruba
+    LanguageCodeEntry {{},         {},              {},              {'d', 'j', 'e'}}, // Zarma
+    LanguageCodeEntry {{'z', 'a'}, {'z', 'h', 'a'}, {'z', 'h', 'a'}, {'z', 'h', 'a'}}, // Zhuang
+    LanguageCodeEntry {{'z', 'u'}, {'z', 'u', 'l'}, {'z', 'u', 'l'}, {'z', 'u', 'l'}}, // Zulu
+    LanguageCodeEntry {{},         {},              {},              {'k', 'g', 'p'}}, // Kaingang
+    LanguageCodeEntry {{},         {},              {},              {'y', 'r', 'l'}}, // Nheengatu
+    LanguageCodeEntry {{},         {},              {},              {'b', 'g', 'c'}}, // Haryanvi
+    LanguageCodeEntry {{},         {'f', 'r', 'r'}, {'f', 'r', 'r'}, {'f', 'r', 'r'}}, // Northern Frisian
+    LanguageCodeEntry {{},         {'r', 'a', 'j'}, {'r', 'a', 'j'}, {'r', 'a', 'j'}}, // Rajasthani
+    LanguageCodeEntry {{},         {'m', 'd', 'f'}, {'m', 'd', 'f'}, {'m', 'd', 'f'}}, // Moksha
+    LanguageCodeEntry {{},         {},              {},              {'t', 'o', 'k'}}, // Toki Pona
+    LanguageCodeEntry {{},         {},              {},              {'p', 'i', 's'}}, // Pijin
+    LanguageCodeEntry {{},         {},              {},              {'a', 'n', 'n'}}, // Obolo
+    LanguageCodeEntry {{},         {'b', 'a', 'l'}, {'b', 'a', 'l'}, {'b', 'a', 'l'}}, // Baluchi
+    LanguageCodeEntry {{},         {},              {},              {'l', 'i', 'j'}}, // Ligurian
+    LanguageCodeEntry {{},         {},              {},              {'r', 'h', 'g'}}, // Rohingya
+    LanguageCodeEntry {{},         {},              {},              {'t', 'r', 'w'}}, // Torwali
 };
 
 static constexpr unsigned char script_code_list[] =
diff --git a/src/corelib/text/qlocale_p.h b/src/corelib/text/qlocale_p.h
index cb1adfbe..ace92e66 100644
--- a/src/corelib/text/qlocale_p.h
+++ b/src/corelib/text/qlocale_p.h
@@ -28,9 +28,68 @@
 
 #include <limits>
 #include <cmath>
+#include <string_view>
 
 QT_BEGIN_NAMESPACE
 
+template <typename MaskType, uchar Lowest> struct QCharacterSetMatch
+{
+    static constexpr int MaxRange = std::numeric_limits<MaskType>::digits;
+    MaskType mask;
+
+    constexpr QCharacterSetMatch(std::string_view set)
+        : mask(0)
+    {
+        for (char c : set) {
+            int idx = uchar(c) - Lowest;
+            mask |= MaskType(1) << idx;
+        }
+    }
+
+    constexpr bool matches(uchar c) const
+    {
+        unsigned idx = c - Lowest;
+        if (idx >= MaxRange)
+            return false;
+        return (mask >> idx) & 1;
+    }
+};
+
+namespace QtPrivate {
+inline constexpr char ascii_space_chars[] =
+        "\t"    // 9: HT - horizontal tab
+        "\n"    // 10: LF - line feed
+        "\v"    // 11: VT - vertical tab
+        "\f"    // 12: FF - form feed
+        "\r"    // 13: CR - carriage return
+        " ";    // 32: space
+
+template <const char *Set, int ForcedLowest = -1>
+inline constexpr auto makeCharacterSetMatch()
+{
+    constexpr auto view = std::string_view(Set);
+    constexpr uchar MinElement = *std::min_element(view.begin(), view.end());
+    constexpr uchar MaxElement = *std::max_element(view.begin(), view.end());
+    constexpr int Range = MaxElement - MinElement;
+    static_assert(Range < 64, "Characters in the set are 64 or more values apart");
+
+    if constexpr (ForcedLowest >= 0) {
+        // use the force
+        static_assert(ForcedLowest <= int(MinElement), "The force is not with you");
+        using MaskType = std::conditional_t<MaxElement - ForcedLowest < 32, quint32, quint64>;
+        return QCharacterSetMatch<MaskType, ForcedLowest>(view);
+    } else if constexpr (MaxElement < std::numeric_limits<qregisteruint>::digits) {
+        // if we can use a Lowest of zero, we can remove a subtraction
+        // from the matches() code at runtime
+        using MaskType = std::conditional_t<(MaxElement < 32), quint32, qregisteruint>;
+        return QCharacterSetMatch<MaskType, 0>(view);
+    } else {
+        using MaskType = std::conditional_t<(Range < 32), quint32, quint64>;
+        return QCharacterSetMatch<MaskType, MinElement>(view);
+    }
+}
+} // QtPrivate
+
 struct QLocaleData;
 // Subclassed by Android platform plugin:
 class Q_CORE_EXPORT QSystemLocale
@@ -152,6 +211,9 @@ struct QLocaleId
 };
 Q_DECLARE_TYPEINFO(QLocaleId, Q_PRIMITIVE_TYPE);
 
+
+using CharBuff = QVarLengthArray<char, 256>;
+
 struct QLocaleData
 {
 public:
@@ -185,8 +247,6 @@ public:
 
     enum NumberMode { IntegerMode, DoubleStandardMode, DoubleScientificMode };
 
-    typedef QVarLengthArray<char, 256> CharBuff;
-
 private:
     enum PrecisionMode {
         PMDecimalDigits =       0x01,
@@ -252,8 +312,53 @@ public:
     [[nodiscard]] static quint64 bytearrayToUnsLongLong(QByteArrayView num, int base, bool *ok);
 
     [[nodiscard]] bool numberToCLocale(QStringView s, QLocale::NumberOptions number_options,
-                                       CharBuff *result) const;
-    [[nodiscard]] inline char numericToCLocale(QStringView in) const;
+                                       NumberMode mode, CharBuff *result) const;
+
+    struct NumericData
+    {
+#ifndef QT_NO_SYSTEMLOCALE
+        // Only used for the system locale, to store data for the view to look at:
+        QString sysDecimal, sysGroup, sysMinus, sysPlus;
+#endif
+        QStringView decimal, group, minus, plus, exponent;
+        char32_t zeroUcs = 0;
+        qint8 zeroLen = 0;
+        bool isC = false; // C locale sets this and nothing else.
+        bool exponentCyrillic = false; // True only for floating-point parsing of Cyrillic.
+        void setZero(QStringView zero)
+        {
+            // No known locale has digits that are more than one Unicode
+            // code-point, so we can safely deal with digits as plain char32_t.
+            switch (zero.size()) {
+            case 1:
+                Q_ASSERT(!zero.at(0).isSurrogate());
+                zeroUcs = zero.at(0).unicode();
+                zeroLen = 1;
+                break;
+            case 2:
+                Q_ASSERT(zero.at(0).isHighSurrogate());
+                zeroUcs = QChar::surrogateToUcs4(zero.at(0), zero.at(1));
+                zeroLen = 2;
+                break;
+            default:
+                Q_ASSERT(zero.size() == 0); // i.e. we got no value to use
+                break;
+            }
+        }
+        [[nodiscard]] bool isValid(NumberMode mode) const // Asserted as a sanity check.
+        {
+            if (isC)
+                return true;
+            if (exponentCyrillic && exponent != u"E" && exponent != u"\u0415")
+                return false;
+            return (zeroLen == 1 || zeroLen == 2) && zeroUcs > 0
+                && (mode == IntegerMode || !decimal.isEmpty())
+                // group may be empty (user config in system locale)
+                && !minus.isEmpty() && !plus.isEmpty()
+                && (mode != DoubleScientificMode || !exponent.isEmpty());
+        }
+    };
+    [[nodiscard]] inline NumericData numericData(NumberMode mode) const;
 
     // this function is used in QIntValidator (QtGui)
     [[nodiscard]] Q_CORE_EXPORT bool validateChars(
@@ -379,7 +484,7 @@ public:
 
     [[nodiscard]] QByteArray bcp47Name(char separator = '-') const;
 
-    [[nodiscard]] inline QLatin1StringView
+    [[nodiscard]] inline std::array<char, 4>
     languageCode(QLocale::LanguageCodeTypes codeTypes = QLocale::AnyLanguageCode) const
     {
         return languageToCode(QLocale::Language(m_data->m_language_id), codeTypes);
@@ -390,7 +495,7 @@ public:
     { return territoryToCode(QLocale::Territory(m_data->m_territory_id)); }
 
     [[nodiscard]] static const QLocalePrivate *get(const QLocale &l) { return l.d; }
-    [[nodiscard]] static QLatin1StringView
+    [[nodiscard]] static std::array<char, 4>
     languageToCode(QLocale::Language language,
                    QLocale::LanguageCodeTypes codeTypes = QLocale::AnyLanguageCode);
     [[nodiscard]] static QLatin1StringView scriptToCode(QLocale::Script script);
@@ -424,58 +529,6 @@ inline QLocalePrivate *QSharedDataPointer<QLocalePrivate>::clone()
     return new QLocalePrivate(d->m_data, d->m_index, d->m_numberOptions);
 }
 
-inline char QLocaleData::numericToCLocale(QStringView in) const
-{
-    Q_ASSERT(in.size() == 1 || (in.size() == 2 && in.at(0).isHighSurrogate()));
-
-    if (in == positiveSign() || in == u"+")
-        return '+';
-
-    if (in == negativeSign() || in == u"-" || in == u"\x2212")
-        return '-';
-
-    if (in == decimalPoint())
-        return '.';
-
-    if (const QString exp = exponentSeparator();
-        in.compare(exp, Qt::CaseInsensitive) == 0
-        || (m_script_id == QLocale::CyrillicScript
-            // Ukrainian officially uses the Cyrillic E, other Cyrillic-script
-            // languages use Latin E, but these are indistinguishable.
-            && in.compare(exp == u'\u0415' ? u'E' : u'\u0415', Qt::CaseInsensitive) == 0)) {
-        return 'e';
-    }
-
-    const QString group = groupSeparator();
-    if (in == group)
-        return ',';
-
-    // In several languages group() is a non-breaking space (U+00A0) or its thin
-    // version (U+202f), which look like spaces.  People (and thus some of our
-    // tests) use a regular space instead and complain if it doesn't work.
-    // Should this be extended generally to any case where group is a space ?
-    if ((group == u"\xa0" || group == u"\x202f") && in == u" ")
-        return ',';
-
-    const char32_t inUcs4 = in.size() == 2
-        ? QChar::surrogateToUcs4(in.at(0), in.at(1)) : in.at(0).unicode();
-    const char32_t zeroUcs4 = zeroUcs();
-    // Must match qlocale_tools.h's unicodeForDigit()
-    if (zeroUcs4 == u'\u3007') {
-        // QTBUG-85409: Suzhou's digits aren't contiguous !
-        if (inUcs4 == zeroUcs4)
-            return '0';
-        if (inUcs4 > u'\u3020' && inUcs4 <= u'\u3029')
-            return inUcs4 - u'\u3020';
-    } else if (zeroUcs4 <= inUcs4 && inUcs4 < zeroUcs4 + 10) {
-        return '0' + inUcs4 - zeroUcs4;
-    }
-    if ('0' <= inUcs4 && inUcs4 <= '9')
-        return inUcs4;
-
-    return 0;
-}
-
 // Also used to merely skip over an escape in a format string, advancint idx to
 // point after it (so not [[nodiscard]]):
 QString qt_readEscapedFormatString(QStringView format, qsizetype *idx);
@@ -483,15 +536,10 @@ QString qt_readEscapedFormatString(QStringView format, qsizetype *idx);
                                       QStringView *script = nullptr, QStringView *cntry = nullptr);
 [[nodiscard]] qsizetype qt_repeatCount(QStringView s);
 
-enum { AsciiSpaceMask = (1u << (' ' - 1)) |
-                        (1u << ('\t' - 1)) |   // 9: HT - horizontal tab
-                        (1u << ('\n' - 1)) |   // 10: LF - line feed
-                        (1u << ('\v' - 1)) |   // 11: VT - vertical tab
-                        (1u << ('\f' - 1)) |   // 12: FF - form feed
-                        (1u << ('\r' - 1)) };  // 13: CR - carriage return
 [[nodiscard]] constexpr inline bool ascii_isspace(uchar c)
 {
-    return c >= 1u && c <= 32u && (AsciiSpaceMask >> uint(c - 1)) & 1u;
+    constexpr auto matcher = QtPrivate::makeCharacterSetMatch<QtPrivate::ascii_space_chars>();
+    return matcher.matches(c);
 }
 
 QT_END_NAMESPACE
diff --git a/src/corelib/text/qlocale_tools.cpp b/src/corelib/text/qlocale_tools.cpp
index 2d0ebd2d..0402203c 100644
--- a/src/corelib/text/qlocale_tools.cpp
+++ b/src/corelib/text/qlocale_tools.cpp
@@ -307,7 +307,7 @@ QSimpleParsedNumber<double> qt_asciiToDouble(const char *num, qsizetype numLen,
         // a number over 2 GB in length is silly, just assume it isn't valid
         return {};
     } else {
-        d = conv.StringToDouble(num, numLen, &processed);
+        d = conv.StringToDouble(num, int(numLen), &processed);
     }
 
     if (!qIsFinite(d)) {
@@ -555,7 +555,9 @@ QString qulltoa(qulonglong number, int base, const QStringView zero)
 /*!
   \internal
 
-  Converts the initial portion of the string pointed to by \a s00 to a double, using the 'C' locale.
+  Converts the initial portion of the string pointed to by \a s00 to a double,
+  using the 'C' locale. The function sets the pointer pointed to by \a se to
+  point to the character past the last character converted.
  */
 double qstrntod(const char *s00, qsizetype len, const char **se, bool *ok)
 {
diff --git a/src/corelib/text/qlocale_tools_p.h b/src/corelib/text/qlocale_tools_p.h
index 61c4061f..3e1d441f 100644
--- a/src/corelib/text/qlocale_tools_p.h
+++ b/src/corelib/text/qlocale_tools_p.h
@@ -68,7 +68,7 @@ void qt_doubleToAscii(double d, QLocaleData::DoubleForm form, int precision,
 template <typename UcsInt>
 [[nodiscard]] inline UcsInt unicodeForDigit(uint digit, UcsInt zero)
 {
-    // Must match QLocaleData::numericToCLocale()'s digit-digestion.
+    // Must match qlocale.cpp's NumberTokenizer's digit-digestion.
     Q_ASSERT(digit < 10);
     if (!digit)
         return zero;
diff --git a/src/corelib/text/qregularexpression.cpp b/src/corelib/text/qregularexpression.cpp
index 8b3cf63d..93e4f7d1 100644
--- a/src/corelib/text/qregularexpression.cpp
+++ b/src/corelib/text/qregularexpression.cpp
@@ -1856,22 +1856,30 @@ QString QRegularExpression::escape(QStringView str)
     \value UnanchoredWildcardConversion
         The conversion will not anchor the pattern. This allows for partial string matches of
         wildcard expressions.
+
+    \value [since 6.6] NonPathWildcardConversion
+        The conversion will \e{not} interpret the pattern as filepath globbing.
+
+    \sa QRegularExpression::wildcardToRegularExpression
 */
 
 /*!
     \since 5.15
 
     Returns a regular expression representation of the given glob \a pattern.
-    The transformation is targeting file path globbing, which means in particular
-    that path separators receive special treatment. This implies that it is not
-    just a basic translation from "*" to ".*".
+
+    There are two transformations possible, one that targets file path
+    globbing, and another one which is more generic.
+
+    By default, the transformation is targeting file path globbing,
+    which means in particular that path separators receive special
+    treatment. This implies that it is not just a basic translation
+    from "*" to ".*" and similar.
 
     \snippet code/src_corelib_text_qregularexpression.cpp 31
 
-    By default, the returned regular expression is fully anchored. In other
-    words, there is no need of calling anchoredPattern() again on the
-    result. To get a regular expression that is not anchored, pass
-    UnanchoredWildcardConversion as the conversion \a options.
+    The more generic globbing transformation is available by passing
+    \c NonPathWildcardConversion in the conversion \a options.
 
     This implementation follows closely the definition
     of wildcard for glob patterns:
@@ -1880,10 +1888,12 @@ QString QRegularExpression::escape(QStringView str)
          \li Any character represents itself apart from those mentioned
          below. Thus \b{c} matches the character \e c.
     \row \li \b{?}
-         \li Matches any single character. It is the same as
-         \b{.} in full regexps.
+         \li Matches any single character, except for a path separator
+         (in case file path globbing has been selected). It is the
+         same as b{.} in full regexps.
     \row \li \b{*}
-         \li Matches zero or more of any characters. It is the
+         \li Matches zero or more of any characters, except for path
+         separators (in case file path globbing has been selected). It is the
          same as \b{.*} in full regexps.
     \row \li \b{[abc]}
          \li Matches one character given in the bracket.
@@ -1897,9 +1907,10 @@ QString QRegularExpression::escape(QStringView str)
          bracket. It is the same as \b{[^a-c]} in full regexp.
     \endtable
 
-    \note The backslash (\\) character is \e not an escape char in this context.
-    In order to match one of the special characters, place it in square brackets
-    (for example, \c{[?]}).
+    \note For historical reasons, a backslash (\\) character is \e not
+    an escape char in this context. In order to match one of the
+    special characters, place it in square brackets (for example,
+    \c{[?]}).
 
     More information about the implementation can be found in:
     \list
@@ -1907,6 +1918,11 @@ QString QRegularExpression::escape(QStringView str)
     \li \c {man 7 glob}
     \endlist
 
+    By default, the returned regular expression is fully anchored. In other
+    words, there is no need of calling anchoredPattern() again on the
+    result. To get a regular expression that is not anchored, pass
+    UnanchoredWildcardConversion in the conversion \a options.
+
     \sa escape()
 */
 QString QRegularExpression::wildcardToRegularExpression(QStringView pattern, WildcardConversionOptions options)
@@ -1917,29 +1933,51 @@ QString QRegularExpression::wildcardToRegularExpression(QStringView pattern, Wil
     qsizetype i = 0;
     const QChar *wc = pattern.data();
 
+    struct GlobSettings {
+        char16_t nativePathSeparator;
+        QStringView starEscape;
+        QStringView questionMarkEscape;
+    };
+
+    const GlobSettings settings = [options]() {
+        if (options.testFlag(NonPathWildcardConversion)) {
+            // using [\d\D] to mean "match everything";
+            // dot doesn't match newlines, unless in /s mode
+            return GlobSettings{ u'\0', u"[\\d\\D]*", u"[\\d\\D]" };
+        } else {
 #ifdef Q_OS_WIN
-    const char16_t nativePathSeparator = u'\\';
-    const auto starEscape = "[^/\\\\]*"_L1;
-    const auto questionMarkEscape = "[^/\\\\]"_L1;
+            return GlobSettings{ u'\\', u"[^/\\\\]*", u"[^/\\\\]" };
 #else
-    const char16_t nativePathSeparator = u'/';
-    const auto starEscape = "[^/]*"_L1;
-    const auto questionMarkEscape = "[^/]"_L1;
+            return GlobSettings{ u'/', u"[^/]*", u"[^/]" };
 #endif
+        }
+    }();
 
     while (i < wclen) {
         const QChar c = wc[i++];
         switch (c.unicode()) {
         case '*':
-            rx += starEscape;
+            rx += settings.starEscape;
             break;
         case '?':
-            rx += questionMarkEscape;
+            rx += settings.questionMarkEscape;
             break;
+        // When not using filepath globbing: \ is escaped, / is itself
+        // When using filepath globbing:
+        // * Unix: \ gets escaped. / is itself
+        // * Windows: \ and / can match each other -- they become [/\\] in regexp
         case '\\':
 #ifdef Q_OS_WIN
+            if (options.testFlag(NonPathWildcardConversion))
+                rx += u"\\\\";
+            else
+                rx += u"[/\\\\]";
+            break;
         case '/':
-            rx += "[/\\\\]"_L1;
+            if (options.testFlag(NonPathWildcardConversion))
+                rx += u'/';
+            else
+                rx += u"[/\\\\]";
             break;
 #endif
         case '$':
@@ -1967,11 +2005,13 @@ QString QRegularExpression::wildcardToRegularExpression(QStringView pattern, Wil
                     rx += wc[i++];
 
                 while (i < wclen && wc[i] != u']') {
-                    // The '/' appearing in a character class invalidates the
-                    // regular expression parsing. It also concerns '\\' on
-                    // Windows OS types.
-                    if (wc[i] == u'/' || wc[i] == nativePathSeparator)
-                        return rx;
+                    if (!options.testFlag(NonPathWildcardConversion)) {
+                        // The '/' appearing in a character class invalidates the
+                        // regular expression parsing. It also concerns '\\' on
+                        // Windows OS types.
+                        if (wc[i] == u'/' || wc[i] == settings.nativePathSeparator)
+                            return rx;
+                    }
                     if (wc[i] == u'\\')
                         rx += u'\\';
                     rx += wc[i++];
diff --git a/src/corelib/text/qregularexpression.h b/src/corelib/text/qregularexpression.h
index 4f1ad8d1..a264717b 100644
--- a/src/corelib/text/qregularexpression.h
+++ b/src/corelib/text/qregularexpression.h
@@ -131,7 +131,8 @@ public:
 
     enum WildcardConversionOption {
         DefaultWildcardConversion = 0x0,
-        UnanchoredWildcardConversion = 0x1
+        UnanchoredWildcardConversion = 0x1,
+        NonPathWildcardConversion = 0x2,
     };
     Q_DECLARE_FLAGS(WildcardConversionOptions, WildcardConversionOption)
 
diff --git a/src/corelib/text/qstring.cpp b/src/corelib/text/qstring.cpp
index 0168f157..39ae476f 100644
--- a/src/corelib/text/qstring.cpp
+++ b/src/corelib/text/qstring.cpp
@@ -23,8 +23,9 @@
 #include "qdebug.h"
 #include "qendian.h"
 #include "qcollator.h"
+#include "qttypetraits.h"
 
-#ifdef Q_OS_MAC
+#ifdef Q_OS_DARWIN
 #include <private/qcore_mac_p.h>
 #endif
 
@@ -65,7 +66,6 @@
 #define ULLONG_MAX quint64_C(18446744073709551615)
 #endif
 
-#define IS_RAW_DATA(d) ((d.d)->flags & QArrayData::RawDataType)
 #define REHASH(a) \
     if (sl_minus_1 < sizeof(std::size_t) * CHAR_BIT)  \
         hashHaystack -= std::size_t(a) << sl_minus_1; \
@@ -281,8 +281,8 @@ bool qt_ends_with_impl(Haystack haystack, Needle needle, Qt::CaseSensitivity cs)
     return QtPrivate::compareStrings(haystack.right(needleLen), needle, cs) == 0;
 }
 
-template <typename T, typename F>
-static void append_helper(QString &self, T view, F appendToUtf16)
+template <typename T>
+static void append_helper(QString &self, T view)
 {
     const auto strData = view.data();
     const qsizetype strSize = view.size();
@@ -293,8 +293,18 @@ static void append_helper(QString &self, T view, F appendToUtf16)
         d.detachAndGrow(QArrayData::GrowsAtEnd, strSize, nullptr, nullptr);
         Q_CHECK_PTR(d.data());
         Q_ASSERT(strSize <= d.freeSpaceAtEnd());
-        const auto newEnd = appendToUtf16(self.data() + self.size(), view);
-        self.resize(newEnd - std::as_const(self).data());
+
+        auto dst = std::next(d.data(), d.size);
+        if constexpr (std::is_same_v<T, QUtf8StringView>) {
+            dst = QUtf8::convertToUnicode(dst, view);
+        } else if constexpr (std::is_same_v<T, QLatin1StringView>) {
+            QLatin1::convertToUnicode(dst, view);
+            dst += strSize;
+        } else {
+            static_assert(QtPrivate::type_dependent_false<T>(),
+                          "Can only operate on UTF-8 and Latin-1");
+        }
+        self.resize(std::distance(d.begin(), dst));
     } else if (d.isNull() && !view.isNull()) { // special case
         self = QLatin1StringView("");
     }
@@ -970,7 +980,7 @@ Q_CORE_EXPORT void qt_from_latin1(char16_t *dst, const char *str, size_t size) n
         return;
     } else {
         size = size % 4;
-        return UnrollTailLoop<3>::exec(qsizetype(size), [=](int i) { dst[i] = (uchar)str[i]; });
+        return UnrollTailLoop<3>::exec(qsizetype(size), [=](qsizetype i) { dst[i] = uchar(str[i]); });
     }
 #  endif
 #endif
@@ -987,7 +997,7 @@ Q_CORE_EXPORT void qt_from_latin1(char16_t *dst, const char *str, size_t size) n
 #endif
 }
 
-static QVarLengthArray<char16_t> qt_from_latin1_to_qvla(QLatin1StringView str) noexcept
+static QVarLengthArray<char16_t> qt_from_latin1_to_qvla(QLatin1StringView str)
 {
     const qsizetype len = str.size();
     QVarLengthArray<char16_t> arr(len);
@@ -1189,7 +1199,7 @@ void qt_to_latin1_unchecked(uchar *dst, const char16_t *src, qsizetype length)
 Q_NEVER_INLINE static int ucstricmp(qsizetype alen, const char16_t *a, qsizetype blen, const char16_t *b)
 {
     if (a == b)
-        return (alen - blen);
+        return qt_lencmp(alen, blen);
 
     char32_t alast = 0;
     char32_t blast = 0;
@@ -1241,7 +1251,7 @@ Q_NEVER_INLINE static int ucstricmp8(const char *utf8, const char *utf8end, cons
         char32_t uc1 = 0;
         char32_t *output = &uc1;
         uchar b = *src1++;
-        int res = QUtf8Functions::fromUtf8<QUtf8BaseTraits>(b, output, src1, end1);
+        const qsizetype res = QUtf8Functions::fromUtf8<QUtf8BaseTraits>(b, output, src1, end1);
         if (res < 0) {
             // decoding error
             uc1 = QChar::ReplacementCharacter;
@@ -1367,25 +1377,8 @@ static int ucstrcmp(const char16_t *a, size_t alen, const Char2 *b, size_t blen)
     return cmp ? cmp : qt_lencmp(alen, blen);
 }
 
-static constexpr uchar latin1Lower[256] = {
-    0x00,0x01,0x02,0x03,0x04,0x05,0x06,0x07,0x08,0x09,0x0a,0x0b,0x0c,0x0d,0x0e,0x0f,
-    0x10,0x11,0x12,0x13,0x14,0x15,0x16,0x17,0x18,0x19,0x1a,0x1b,0x1c,0x1d,0x1e,0x1f,
-    0x20,0x21,0x22,0x23,0x24,0x25,0x26,0x27,0x28,0x29,0x2a,0x2b,0x2c,0x2d,0x2e,0x2f,
-    0x30,0x31,0x32,0x33,0x34,0x35,0x36,0x37,0x38,0x39,0x3a,0x3b,0x3c,0x3d,0x3e,0x3f,
-    0x40,0x61,0x62,0x63,0x64,0x65,0x66,0x67,0x68,0x69,0x6a,0x6b,0x6c,0x6d,0x6e,0x6f,
-    0x70,0x71,0x72,0x73,0x74,0x75,0x76,0x77,0x78,0x79,0x7a,0x5b,0x5c,0x5d,0x5e,0x5f,
-    0x60,0x61,0x62,0x63,0x64,0x65,0x66,0x67,0x68,0x69,0x6a,0x6b,0x6c,0x6d,0x6e,0x6f,
-    0x70,0x71,0x72,0x73,0x74,0x75,0x76,0x77,0x78,0x79,0x7a,0x7b,0x7c,0x7d,0x7e,0x7f,
-    0x80,0x81,0x82,0x83,0x84,0x85,0x86,0x87,0x88,0x89,0x8a,0x8b,0x8c,0x8d,0x8e,0x8f,
-    0x90,0x91,0x92,0x93,0x94,0x95,0x96,0x97,0x98,0x99,0x9a,0x9b,0x9c,0x9d,0x9e,0x9f,
-    0xa0,0xa1,0xa2,0xa3,0xa4,0xa5,0xa6,0xa7,0xa8,0xa9,0xaa,0xab,0xac,0xad,0xae,0xaf,
-    0xb0,0xb1,0xb2,0xb3,0xb4,0xb5,0xb6,0xb7,0xb8,0xb9,0xba,0xbb,0xbc,0xbd,0xbe,0xbf,
-    // 0xd7 (multiplication sign) and 0xdf (sz ligature) complicate life
-    0xe0,0xe1,0xe2,0xe3,0xe4,0xe5,0xe6,0xe7,0xe8,0xe9,0xea,0xeb,0xec,0xed,0xee,0xef,
-    0xf0,0xf1,0xf2,0xf3,0xf4,0xf5,0xf6,0xd7,0xf8,0xf9,0xfa,0xfb,0xfc,0xfd,0xfe,0xdf,
-    0xe0,0xe1,0xe2,0xe3,0xe4,0xe5,0xe6,0xe7,0xe8,0xe9,0xea,0xeb,0xec,0xed,0xee,0xef,
-    0xf0,0xf1,0xf2,0xf3,0xf4,0xf5,0xf6,0xf7,0xf8,0xf9,0xfa,0xfb,0xfc,0xfd,0xfe,0xff
-};
+using CaseInsensitiveL1 = QtPrivate::QCaseInsensitiveLatin1Hash;
+
 static int latin1nicmp(const char *lhsChar, qsizetype lSize, const char *rhsChar, qsizetype rSize)
 {
     // We're called with QLatin1StringView's .data() and .size():
@@ -1396,11 +1389,9 @@ static int latin1nicmp(const char *lhsChar, qsizetype lSize, const char *rhsChar
         return 1;
     const qsizetype size = std::min(lSize, rSize);
 
-    const uchar *lhs = reinterpret_cast<const uchar *>(lhsChar);
-    const uchar *rhs = reinterpret_cast<const uchar *>(rhsChar);
-    Q_ASSERT(lhs && rhs); // since both lSize and rSize are positive
+    Q_ASSERT(lhsChar && rhsChar); // since both lSize and rSize are positive
     for (qsizetype i = 0; i < size; i++) {
-        if (int res = latin1Lower[lhs[i]] - latin1Lower[rhs[i]])
+        if (int res = CaseInsensitiveL1::difference(lhsChar[i], rhsChar[i]))
             return res;
     }
     return qt_lencmp(lSize, rSize);
@@ -2042,7 +2033,7 @@ void qtWarnAboutInvalidRegularExpression(const QString &pattern, const char *whe
 
     Many strings are known at compile time. But the trivial
     constructor QString("Hello"), will copy the contents of the string,
-    treating the contents as Latin-1. To avoid this one can use the
+    treating the contents as Latin-1. To avoid this, one can use the
     QStringLiteral macro to directly create the required data at compile
     time. Constructing a QString out of the literal does then not cause
     any overhead at runtime.
@@ -2096,14 +2087,21 @@ void qtWarnAboutInvalidRegularExpression(const QString &pattern, const char *whe
 
     \snippet qstring/stringbuilder.cpp 5
 
-    A more global approach which is the most convenient but
-    not entirely source compatible, is to this define in your
-    .pro file:
+    A more global approach, which is more convenient but not entirely source
+    compatible, is to define \c QT_USE_QSTRINGBUILDER (by adding it to the compiler
+    flags) at build time. This will make concatenating strings with \c{'+'} work the
+    same way as \c{QStringBuilder} \c{'%'}.
 
-    \snippet qstring/stringbuilder.cpp 3
+    \note Take care when using the \c auto keyword with the result of
+    string concatenation using QStringBuilder:
+    \snippet qstring/stringbuilder.cpp 6
 
-    and the \c{'+'} will automatically be performed as the
-    \c{QStringBuilder} \c{'%'} everywhere.
+    Typically this is not what is expected (and can result in undefined behavior).
+    This issue can be fixed by specifying the return type:
+    \snippet qstring/stringbuilder.cpp 7
+
+    \note \l {https://invent.kde.org/sdk/clazy} {Clazy} has a check, auto-unexpected-qstringbuilder,
+    that catches this issue.
 
     \section1 Maximum Size and Out-of-memory Conditions
 
@@ -2369,10 +2367,16 @@ void qtWarnAboutInvalidRegularExpression(const QString &pattern, const char *whe
     \sa fromLatin1(), fromLocal8Bit(), fromUtf8()
 */
 
+/*
+//! [from-std-string]
+Returns a copy of the \a str string. The given string is assumed to be
+encoded in \1, and is converted to QString using the \2 function.
+//! [from-std-string]
+*/
+
 /*! \fn QString QString::fromStdString(const std::string &str)
 
-    Returns a copy of the \a str string. The given string is converted
-    to Unicode using the fromUtf8() function.
+    \include qstring.cpp {from-std-string} {UTF-8} {fromUtf8()}
 
     \sa fromLatin1(), fromLocal8Bit(), fromUtf8(), QByteArray::fromStdString()
 */
@@ -2415,7 +2419,7 @@ void qtWarnAboutInvalidRegularExpression(const QString &pattern, const char *whe
         toStdU32String()
 */
 
-qsizetype QString::toUcs4_helper(const ushort *uc, qsizetype length, uint *out)
+qsizetype QString::toUcs4_helper(const char16_t *uc, qsizetype length, char32_t *out)
 {
     qsizetype count = 0;
 
@@ -2605,6 +2609,12 @@ QString::QString(QChar ch)
     \internal
 */
 
+static bool needsReallocate(const QString &str, qsizetype newSize)
+{
+    const auto capacityAtEnd = str.capacity() - str.data_ptr().freeSpaceAtBegin();
+    return newSize > capacityAtEnd;
+}
+
 /*!
     Sets the size of the string to \a size characters.
 
@@ -2641,8 +2651,7 @@ void QString::resize(qsizetype size)
     if (size < 0)
         size = 0;
 
-    const auto capacityAtEnd = capacity() - d.freeSpaceAtBegin();
-    if (d->needsDetach() || size > capacityAtEnd)
+    if (d->needsDetach() || needsReallocate(*this, size))
         reallocData(size, QArrayData::Grow);
     d.size = size;
     if (d->allocatedCapacity())
@@ -2911,7 +2920,6 @@ QString &QString::operator=(QChar ch)
     defined.
 */
 
-
 /*!
     \fn QString& QString::insert(qsizetype position, const QByteArray &str)
     \since 5.5
@@ -2927,6 +2935,57 @@ QString &QString::operator=(QChar ch)
     defined.
 */
 
+/*! \internal
+    T is a view or a container on/of QChar, char16_t, or char
+*/
+template <typename T>
+static void insert_helper(QString &str, qsizetype i, const T &toInsert)
+{
+    auto &str_d = str.data_ptr();
+    qsizetype difference = 0;
+    if (Q_UNLIKELY(i > str_d.size))
+        difference = i - str_d.size;
+    const qsizetype oldSize = str_d.size;
+    const qsizetype insert_size = toInsert.size();
+    const qsizetype newSize = str_d.size + difference + insert_size;
+    const auto side = i == 0 ? QArrayData::GrowsAtBeginning : QArrayData::GrowsAtEnd;
+
+    if (str_d.needsDetach() || needsReallocate(str, newSize)) {
+        const auto cbegin = str.cbegin();
+        const auto cend = str.cend();
+        const auto insert_start = difference == 0 ? std::next(cbegin, i) : cend;
+        QString other;
+        // Using detachAndGrow() so that prepend optimization works and QStringBuilder
+        // unittests pass
+        other.data_ptr().detachAndGrow(side, newSize, nullptr, nullptr);
+        other.append(QStringView(cbegin, insert_start));
+        other.resize(i, u' ');
+        other.append(toInsert);
+        other.append(QStringView(insert_start, cend));
+        str.swap(other);
+        return;
+    }
+
+    str_d.detachAndGrow(side, difference + insert_size, nullptr, nullptr);
+    Q_CHECK_PTR(str_d.data());
+    str.resize(newSize);
+
+    auto begin = str_d.begin();
+    auto old_end = std::next(begin, oldSize);
+    std::fill_n(old_end, difference, u' ');
+    auto insert_start = std::next(begin, i);
+    if (difference == 0)
+        std::move_backward(insert_start, old_end, str_d.end());
+
+    using Char = std::remove_cv_t<typename T::value_type>;
+    if constexpr(std::is_same_v<Char, QChar>)
+        std::copy_n(reinterpret_cast<const char16_t *>(toInsert.data()), insert_size, insert_start);
+    else if constexpr (std::is_same_v<Char, char16_t>)
+        std::copy_n(toInsert.data(), insert_size, insert_start);
+    else if constexpr (std::is_same_v<Char, char>)
+        qt_from_latin1(insert_start, toInsert.data(), insert_size);
+}
+
 /*!
     \fn QString &QString::insert(qsizetype position, QLatin1StringView str)
     \overload insert()
@@ -2941,18 +3000,7 @@ QString &QString::insert(qsizetype i, QLatin1StringView str)
     if (i < 0 || !s || !(*s))
         return *this;
 
-    qsizetype len = str.size();
-    qsizetype difference = 0;
-    if (Q_UNLIKELY(i > size()))
-        difference = i - size();
-    d.detachAndGrow(Data::GrowsAtEnd, difference + len, nullptr, nullptr);
-    Q_CHECK_PTR(d.data());
-    d->copyAppend(difference, u' ');
-    d.size += len;
-
-    ::memmove(d.data() + i + len, d.data() + i, (d.size - i - len) * sizeof(QChar));
-    qt_from_latin1(d.data() + i, s, size_t(len));
-    d.data()[d.size] = u'\0';
+    insert_helper(*this, i, str);
     return *this;
 }
 
@@ -2971,7 +3019,48 @@ QString &QString::insert(qsizetype i, QLatin1StringView str)
 */
 QString &QString::insert(qsizetype i, QUtf8StringView s)
 {
-     return insert(i, s.toString()); // ### optimize (QTBUG-108546)
+    auto insert_size = s.size();
+    if (i < 0 || insert_size <= 0)
+        return *this;
+
+    qsizetype difference = 0;
+    if (Q_UNLIKELY(i > d.size))
+        difference = i - d.size;
+
+    const qsizetype newSize = d.size + difference + insert_size;
+
+    if (d.needsDetach() || needsReallocate(*this, newSize)) {
+        const auto cbegin = this->cbegin();
+        const auto insert_start = difference == 0 ? std::next(cbegin, i) : cend();
+        QString other;
+        other.reserve(newSize);
+        other.append(QStringView(cbegin, insert_start));
+        if (difference > 0)
+            other.resize(i, u' ');
+        other.append(s);
+        other.append(QStringView(insert_start, cend()));
+        swap(other);
+        return *this;
+    }
+
+    if (i >= d.size) {
+        d.detachAndGrow(QArrayData::GrowsAtEnd, difference + insert_size, nullptr, nullptr);
+        Q_CHECK_PTR(d.data());
+
+        if (difference > 0)
+            resize(i, u' ');
+        append(s);
+    } else {
+        // Optimal insertion of Utf8 data is at the end, anywhere else could
+        // potentially lead to moving characters twice if Utf8 data size
+        // (variable-width) is less than the equiavalent Utf16 data size
+        QVarLengthArray<char16_t> buffer(insert_size); // ### optimize (QTBUG-108546)
+        char16_t *b = QUtf8::convertToUnicode(buffer.data(), s);
+        buffer.resize(std::distance(buffer.begin(), b));
+        insert_helper(*this, i, buffer);
+    }
+
+    return *this;
 }
 
 /*!
@@ -2991,28 +3080,14 @@ QString& QString::insert(qsizetype i, const QChar *unicode, qsizetype size)
     if (i < 0 || size <= 0)
         return *this;
 
-    const char16_t *s = reinterpret_cast<const char16_t *>(unicode);
-
-    // handle this specially, as QArrayDataOps::insert() doesn't handle out of
-    // bounds positions
-    if (i >= d->size) {
-        // In case when data points into the range or is == *this, we need to
-        // defer a call to free() so that it comes after we copied the data from
-        // the old memory:
-        DataPointer detached{};  // construction is free
-        d.detachAndGrow(Data::GrowsAtEnd, (i - d.size) + size, &s, &detached);
-        Q_CHECK_PTR(d.data());
-        d->copyAppend(i - d->size, u' ');
-        d->copyAppend(s, s + size);
-        d.data()[d.size] = u'\0';
-        return *this;
+    // In case when data points into "this"
+    if (!d->needsDetach() && QtPrivate::q_points_into_range(unicode, *this)) {
+        QVarLengthArray copy(unicode, unicode + size);
+        insert(i, copy.data(), size);
+    } else {
+        insert_helper(*this, i, QStringView(unicode, size));
     }
 
-    if (!d->needsDetach() && QtPrivate::q_points_into_range(s, d.data(), d.data() + d.size))
-        return insert(i, QStringView{QVarLengthArray(s, s + size)});
-
-    d->insert(i, s, size);
-    d.data()[d.size] = u'\0';
     return *this;
 }
 
@@ -3056,11 +3131,10 @@ QString &QString::append(const QString &str)
 {
     if (!str.isNull()) {
         if (isNull()) {
-            operator=(str);
-            if (Q_UNLIKELY(!d.isMutable() && d.size > 0)) {
-                d.detach(); // fromRawData, so we do a deep copy
-                d.data()[d.size] = u'\0';
-            }
+            if (Q_UNLIKELY(!str.d.isMutable()))
+                assign(str); // fromRawData, so we do a deep copy
+            else
+                operator=(str);
         } else if (str.size()) {
             append(str.constData(), str.size());
         }
@@ -3101,15 +3175,7 @@ QString &QString::append(const QChar *str, qsizetype len)
 */
 QString &QString::append(QLatin1StringView str)
 {
-    auto appendUtf16 = [](QChar *dst, QLatin1StringView str) {
-        const qsizetype len = str.size();
-        const char *s = str.latin1();
-        char16_t *i = reinterpret_cast<char16_t *>(dst);
-        qt_from_latin1(i, s, size_t(len));
-        return dst + len;
-    };
-
-    append_helper(*this, str, appendUtf16);
+    append_helper(*this, str);
     return *this;
 }
 
@@ -3121,11 +3187,7 @@ QString &QString::append(QLatin1StringView str)
 */
 QString &QString::append(QUtf8StringView str)
 {
-    auto appendUtf16 = [](QChar *dst, QUtf8StringView str) {
-        return QUtf8::convertToUnicode(dst, str);
-    };
-
-    append_helper(*this, str, appendUtf16);
+    append_helper(*this, str);
     return *this;
 }
 
@@ -3247,6 +3309,105 @@ QString &QString::append(QChar ch)
     Prepends the character \a ch to this string.
 */
 
+/*!
+    \fn QString &QString::assign(QAnyStringView v)
+    \since 6.6
+
+    Replaces the contents of this string with a copy of \a v and returns a
+    reference to this string.
+
+    The size of this string will be equal to the size of \a v, converted to
+    UTF-16 as if by \c{v.toString()}. Unlike QAnyStringView::toString(), however,
+    this function only allocates memory if the estimated size exceeds the capacity
+    of this string or this string is shared.
+
+    \sa QAnyStringView::toString()
+*/
+
+/*!
+    \fn QString &QString::assign(qsizetype n, QChar c)
+    \since 6.6
+
+    Replaces the contents of this string with \a n copies of \a c and
+    returns a reference to this string.
+
+    The size of this string will be equal to \a n, which has to be non-negative.
+
+    This function will only allocate memory if \a n exceeds the capacity of this
+    string or this string is shared.
+
+    \sa fill()
+*/
+
+/*!
+    \fn template <typename InputIterator, if_compatible_iterator<InputIterator>> QString &QString::assign(InputIterator first, InputIterator last)
+    \since 6.6
+
+    Replaces the contents of this string with a copy of the elements in the
+    iterator range [\a first, \a last) and returns a reference to this string.
+
+    The size of this string will be equal to the decoded length of the elements
+    in the range [\a first, \a last), which need not be the same as the length of
+    the range itself, because this function transparently recodes the input
+    character set to UTF-16.
+
+    This function will only allocate memory if the number of elements in the
+    range, or, for non-UTF-16-encoded input, the maximum possible size of the
+    resulting string, exceeds the capacity of this string, or if this string is
+    shared.
+
+    \note This function overload only participates in overload resolution if
+    \c InputIterator meets the requirements of a
+    \l {https://en.cppreference.com/w/cpp/named_req/InputIterator} {LegacyInputIterator}
+    and the \c{value_type} of \c InputIterator is one of the following character types:
+    \list
+    \li QChar
+    \li QLatin1Char
+    \li \c char16_t
+    \li (on platforms, such as Windows, where it is a 16-bit type) \c wchar_t
+    \li \c char32_t
+    \endlist
+
+    \note The behavior is undefined if either argument is an iterator into *this or
+    [\a first, \a last) is not a valid range.
+*/
+
+QString &QString::assign(QAnyStringView s)
+{
+    if (s.size() <= capacity() && isDetached()) {
+        const auto offset = d.freeSpaceAtBegin();
+        if (offset)
+            d.setBegin(d.begin() - offset);
+        resize(0);
+        s.visit([this](auto input) {
+            this->append(input);
+        });
+    } else {
+        *this = s.toString();
+    }
+    return *this;
+}
+
+QString &QString::assign_helper(const char32_t *data, qsizetype len)
+{
+    // worst case: each char32_t requires a surrogate pair, so
+    const auto requiredCapacity = len * 2;
+    if (requiredCapacity <= capacity() && isDetached()) {
+        const auto offset = d.freeSpaceAtBegin();
+        if (offset)
+            d.setBegin(d.begin() - offset);
+        auto begin = reinterpret_cast<QChar *>(d.begin());
+        auto ba = QByteArrayView(reinterpret_cast<const std::byte*>(data), len * sizeof(char32_t));
+        QStringConverter::State state;
+        const auto end = QUtf32::convertToUnicode(begin, ba, &state, DetectEndianness);
+        d.size = end - begin;
+        d.data()[d.size] = u'\0';
+    } else {
+        *this = QString::fromUcs4(data, len);
+    }
+    return *this;
+}
+
 /*!
   \fn QString &QString::remove(qsizetype position, qsizetype n)
 
@@ -3353,7 +3514,7 @@ static void removeStringImpl(QString &s, const T &needle, Qt::CaseSensitivity cs
 QString &QString::remove(const QString &str, Qt::CaseSensitivity cs)
 {
     const auto s = str.d.data();
-    if (QtPrivate::q_points_into_range(s, d.data(), d.data() + d.size))
+    if (QtPrivate::q_points_into_range(s, d))
         removeStringImpl(*this, QStringView{QVarLengthArray(s, s + str.size())}, cs);
     else
         removeStringImpl(*this, qToStringViewIgnoringNull(str), cs);
@@ -3489,6 +3650,98 @@ QString &QString::remove(QChar ch, Qt::CaseSensitivity cs)
   \sa remove()
 */
 
+
+/*! \internal
+  Instead of detaching, or reallocating if "before" is shorter than "after"
+  and there isn't enough capacity, create a new string, copy characters to it
+  as needed, then swap it with "str".
+*/
+static void replace_with_copy(QString &str, size_t *indices, qsizetype nIndices, qsizetype blen,
+                              QStringView after)
+{
+    const qsizetype alen = after.size();
+    const char16_t *after_b = after.utf16();
+
+    const QString::DataPointer &str_d = str.data_ptr();
+    auto src_start = str_d.begin();
+    const qsizetype newSize = str_d.size + nIndices * (alen - blen);
+    QString copy{ newSize, Qt::Uninitialized };
+    QString::DataPointer &copy_d = copy.data_ptr();
+    auto dst = copy_d.begin();
+    for (int i = 0; i < nIndices; ++i) {
+        auto hit = str_d.begin() + indices[i];
+        dst = std::copy(src_start, hit, dst);
+        dst = std::copy_n(after_b, alen, dst);
+        src_start = hit + blen;
+    }
+    dst = std::copy(src_start, str_d.end(), dst);
+    str.swap(copy);
+}
+
+// No detaching or reallocation is needed
+static void replace_in_place(QString &str, size_t *indices, qsizetype nIndices,
+                             qsizetype blen, QStringView after)
+{
+    const qsizetype alen = after.size();
+    const char16_t *after_b = after.utf16();
+    const char16_t *after_e = after.utf16() + after.size();
+
+    if (blen == alen) { // Replace in place
+        for (qsizetype i = 0; i < nIndices; ++i)
+            std::copy_n(after_b, alen, str.data_ptr().begin() + indices[i]);
+    } else if (blen > alen) { // Replace from front
+        char16_t *begin = str.data_ptr().begin();
+        char16_t *hit = begin + indices[0];
+        char16_t *to = hit;
+        to = std::copy_n(after_b, alen, to);
+        char16_t *movestart = hit + blen;
+        for (qsizetype i = 1; i < nIndices; ++i) {
+            hit = begin + indices[i];
+            to = std::move(movestart, hit, to);
+            to = std::copy_n(after_b, alen, to);
+            movestart = hit + blen;
+        }
+        to = std::move(movestart, str.data_ptr().end(), to);
+        str.resize(std::distance(begin, to));
+    } else { // blen < alen, Replace from back
+        const qsizetype oldSize = str.data_ptr().size;
+        const qsizetype adjust = nIndices * (alen - blen);
+        const qsizetype newSize = oldSize + adjust;
+
+        str.resize(newSize);
+        char16_t *begin = str.data_ptr().begin();
+        char16_t *moveend = begin + oldSize;
+        char16_t *to = str.data_ptr().end();
+
+        while (nIndices) {
+            --nIndices;
+            char16_t *hit = begin + indices[nIndices];
+            char16_t *movestart = hit + blen;
+            to = std::move_backward(movestart, moveend, to);
+            to = std::copy_backward(after_b, after_e, to);
+            moveend = hit;
+        }
+    }
+}
+
+static void replace_helper(QString &str, size_t *indices, qsizetype nIndices, qsizetype blen, QStringView after)
+{
+    const qsizetype oldSize = str.data_ptr().size;
+    const qsizetype adjust = nIndices * (after.size() - blen);
+    const qsizetype newSize = oldSize + adjust;
+    if (str.data_ptr().needsDetach() || needsReallocate(str, newSize)) {
+        replace_with_copy(str, indices, nIndices, blen, after);
+        return;
+    }
+
+    if (QtPrivate::q_points_into_range(after.begin(), str))
+        // Copy after if it lies inside our own d.b area (which we could
+        // possibly invalidate via a realloc or modify by replacement)
+        replace_in_place(str, indices, nIndices, blen, QVarLengthArray(after.begin(), after.end()));
+    else
+        replace_in_place(str, indices, nIndices, blen, after);
+}
+
 /*!
   \fn QString &QString::replace(qsizetype position, qsizetype n, const QString &after)
 
@@ -3511,13 +3764,13 @@ QString &QString::replace(qsizetype pos, qsizetype len, const QString &after)
 }
 
 /*!
-  \fn QString &QString::replace(qsizetype position, qsizetype n, const QChar *unicode, qsizetype size)
+  \fn QString &QString::replace(qsizetype position, qsizetype n, const QChar *after, qsizetype alen)
   \overload replace()
   Replaces \a n characters beginning at index \a position with the
-  first \a size characters of the QChar array \a unicode and returns a
+  first \a alen characters of the QChar array \a after and returns a
   reference to this string.
 */
-QString &QString::replace(qsizetype pos, qsizetype len, const QChar *unicode, qsizetype size)
+QString &QString::replace(qsizetype pos, qsizetype len, const QChar *after, qsizetype alen)
 {
     if (size_t(pos) > size_t(this->size()))
         return *this;
@@ -3525,7 +3778,7 @@ QString &QString::replace(qsizetype pos, qsizetype len, const QChar *unicode, qs
         len = this->size() - pos;
 
     size_t index = pos;
-    replace_helper(&index, 1, len, unicode, size);
+    replace_helper(*this, &index, 1, len, QStringView{after, alen});
     return *this;
 }
 
@@ -3563,90 +3816,6 @@ QString &QString::replace(const QString &before, const QString &after, Qt::CaseS
     return replace(before.constData(), before.size(), after.constData(), after.size(), cs);
 }
 
-namespace { // helpers for replace and its helper:
-QChar *textCopy(const QChar *start, qsizetype len)
-{
-    const size_t size = len * sizeof(QChar);
-    QChar *const copy = static_cast<QChar *>(::malloc(size));
-    Q_CHECK_PTR(copy);
-    ::memcpy(copy, start, size);
-    return copy;
-}
-
-static bool pointsIntoRange(const QChar *ptr, const char16_t *base, qsizetype len)
-{
-    const QChar *const start = reinterpret_cast<const QChar *>(base);
-    const std::less<const QChar *> less;
-    return !less(ptr, start) && less(ptr, start + len);
-}
-} // end namespace
-
-/*!
-  \internal
- */
-void QString::replace_helper(size_t *indices, qsizetype nIndices, qsizetype blen, const QChar *after, qsizetype alen)
-{
-    // Copy after if it lies inside our own d.b area (which we could
-    // possibly invalidate via a realloc or modify by replacement).
-    QChar *afterBuffer = nullptr;
-    if (pointsIntoRange(after, d.data(), d.size)) // Use copy in place of vulnerable original:
-        after = afterBuffer = textCopy(after, alen);
-
-    QT_TRY {
-        if (blen == alen) {
-            // replace in place
-            detach();
-            for (qsizetype i = 0; i < nIndices; ++i)
-                memcpy(d.data() + indices[i], after, alen * sizeof(QChar));
-        } else if (alen < blen) {
-            // replace from front
-            detach();
-            size_t to = indices[0];
-            if (alen)
-                memcpy(d.data()+to, after, alen*sizeof(QChar));
-            to += alen;
-            size_t movestart = indices[0] + blen;
-            for (qsizetype i = 1; i < nIndices; ++i) {
-                qsizetype msize = indices[i] - movestart;
-                if (msize > 0) {
-                    memmove(d.data() + to, d.data() + movestart, msize * sizeof(QChar));
-                    to += msize;
-                }
-                if (alen) {
-                    memcpy(d.data() + to, after, alen * sizeof(QChar));
-                    to += alen;
-                }
-                movestart = indices[i] + blen;
-            }
-            qsizetype msize = d.size - movestart;
-            if (msize > 0)
-                memmove(d.data() + to, d.data() + movestart, msize * sizeof(QChar));
-            resize(d.size - nIndices*(blen-alen));
-        } else {
-            // replace from back
-            qsizetype adjust = nIndices*(alen-blen);
-            qsizetype newLen = d.size + adjust;
-            qsizetype moveend = d.size;
-            resize(newLen);
-
-            while (nIndices) {
-                --nIndices;
-                qsizetype movestart = indices[nIndices] + blen;
-                qsizetype insertstart = indices[nIndices] + nIndices*(alen-blen);
-                qsizetype moveto = insertstart + alen;
-                memmove(d.data() + moveto, d.data() + movestart,
-                        (moveend - movestart)*sizeof(QChar));
-                memcpy(d.data() + insertstart, after, alen * sizeof(QChar));
-                moveend = movestart-blen;
-            }
-        }
-    } QT_CATCH(const std::bad_alloc &) {
-        ::free(afterBuffer);
-        QT_RETHROW;
-    }
-    ::free(afterBuffer);
-}
-
 /*!
   \since 4.5
   \overload replace()
@@ -3674,49 +3843,21 @@ QString &QString::replace(const QChar *before, qsizetype blen,
         return replace(*before, *after, cs);
 
     QStringMatcher matcher(before, blen, cs);
-    QChar *beforeBuffer = nullptr, *afterBuffer = nullptr;
 
     qsizetype index = 0;
-    while (1) {
-        size_t indices[1024];
-        size_t pos = 0;
-        while (pos < 1024) {
-            index = matcher.indexIn(*this, index);
-            if (index == -1)
-                break;
-            indices[pos++] = index;
-            if (blen) // Step over before:
-                index += blen;
-            else // Only count one instance of empty between any two characters:
-                index++;
-        }
-        if (!pos) // Nothing to replace
-            break;
 
-        if (Q_UNLIKELY(index != -1)) {
-            /*
-              We're about to change data, that before and after might point
-              into, and we'll need that data for our next batch of indices.
-            */
-            if (!afterBuffer && pointsIntoRange(after, d.data(), d.size))
-                after = afterBuffer = textCopy(after, alen);
-
-            if (!beforeBuffer && pointsIntoRange(before, d.data(), d.size)) {
-                beforeBuffer = textCopy(before, blen);
-                matcher = QStringMatcher(beforeBuffer, blen, cs);
-            }
-        }
-
-        replace_helper(indices, pos, blen, after, alen);
-
-        if (Q_LIKELY(index == -1)) // Nothing left to replace
-            break;
-        // The call to replace_helper just moved what index points at:
-        index += pos*(alen-blen);
+    QVarLengthArray<size_t> indices;
+    while ((index = matcher.indexIn(*this, index)) != -1) {
+        indices.push_back(index);
+        if (blen) // Step over before:
+            index += blen;
+        else // Only count one instance of empty between any two characters:
+            index++;
     }
-    ::free(afterBuffer);
-    ::free(beforeBuffer);
+    if (indices.isEmpty())
+        return *this;
 
+    replace_helper(*this, indices.data(), indices.size(), blen, QStringView{after, alen});
     return *this;
 }
 
@@ -3738,35 +3879,27 @@ QString& QString::replace(QChar ch, const QString &after, Qt::CaseSensitivity cs
     if (size() == 0)
         return *this;
 
-    char16_t cc = (cs == Qt::CaseSensitive ? ch.unicode() : ch.toCaseFolded().unicode());
+    const char16_t cc = (cs == Qt::CaseSensitive ? ch.unicode() : ch.toCaseFolded().unicode());
 
-    qsizetype index = 0;
-    while (1) {
-        size_t indices[1024];
-        size_t pos = 0;
-        if (cs == Qt::CaseSensitive) {
-            while (pos < 1024 && index < size()) {
-                if (d.data()[index] == cc)
-                    indices[pos++] = index;
-                index++;
-            }
-        } else {
-            while (pos < 1024 && index < size()) {
-                if (QChar::toCaseFolded(d.data()[index]) == cc)
-                    indices[pos++] = index;
-                index++;
-            }
+    QVarLengthArray<size_t> indices;
+    if (cs == Qt::CaseSensitive) {
+        const char16_t *begin = d.begin();
+        const char16_t *end = d.end();
+        QStringView view(begin, end);
+        const char16_t *hit = nullptr;
+        while ((hit = QtPrivate::qustrchr(view, cc)) != end) {
+            indices.push_back(std::distance(begin, hit));
+            view = QStringView(std::next(hit), end);
         }
-        if (!pos) // Nothing to replace
-            break;
-
-        replace_helper(indices, pos, 1, after.constData(), after.size());
-
-        if (Q_LIKELY(index == size())) // Nothing left to replace
-            break;
-        // The call to replace_helper just moved what index points at:
-        index += pos*(after.size() - 1);
+    } else {
+        for (qsizetype i = 0; i < d.size; ++i)
+            if (QChar::toCaseFolded(d.data()[i]) == cc)
+                indices.push_back(i);
     }
+    if (indices.isEmpty())
+        return *this;
+
+    replace_helper(*this, indices.data(), indices.size(), 1, after);
     return *this;
 }
 
@@ -3779,27 +3912,39 @@ QString& QString::replace(QChar ch, const QString &after, Qt::CaseSensitivity cs
 */
 QString& QString::replace(QChar before, QChar after, Qt::CaseSensitivity cs)
 {
-    if (d.size) {
-        const qsizetype idx = indexOf(before, 0, cs);
-        if (idx != -1) {
-            detach();
-            const char16_t a = after.unicode();
-            char16_t *i = d.data();
-            char16_t *const e = i + d.size;
-            i += idx;
-            *i = a;
-            ++i;
-            if (cs == Qt::CaseSensitive) {
-                const char16_t toReplace = before.unicode();
-                std::replace(i, e, toReplace, a);
-            } else {
-                const char16_t toReplace = foldCase(before.unicode());
-                auto match = [toReplace](const char16_t c) {
-                    return foldAndCompare(c, toReplace);
-                };
-                std::replace_if(i, e, match, a);
-            }
+    const qsizetype idx = indexOf(before, 0, cs);
+    if (idx == -1)
+        return *this;
+
+    const char16_t achar = after.unicode();
+    char16_t bchar = before.unicode();
+
+    auto matchesCIS = [](char16_t beforeChar) {
+        return [beforeChar](char16_t ch) { return foldAndCompare(ch, beforeChar); };
+    };
+
+    auto hit = d.begin() + idx;
+    if (!d.needsDetach()) {
+        *hit++ = achar;
+        if (cs == Qt::CaseSensitive) {
+            std::replace(hit, d.end(), bchar, achar);
+        } else {
+            bchar = foldCase(bchar);
+            std::replace_if(hit, d.end(), matchesCIS(bchar), achar);
         }
+    } else {
+        QString other{ d.size, Qt::Uninitialized };
+        auto dest = std::copy(d.begin(), hit, other.d.begin());
+        *dest++ = achar;
+        ++hit;
+        if (cs == Qt::CaseSensitive) {
+            std::replace_copy(hit, d.end(), dest, bchar, achar);
+        } else {
+            bchar = foldCase(bchar);
+            std::replace_copy_if(hit, d.end(), dest, matchesCIS(bchar), achar);
+        }
+
+        swap(other);
     }
     return *this;
 }
@@ -5375,6 +5520,21 @@ QByteArray QString::toLatin1_helper_inplace(QString &s)
     return QByteArray(std::move(ba_d));
 }
 
+// QLatin1 methods that use helpers from qstring.cpp
+char16_t *QLatin1::convertToUnicode(char16_t *out, QLatin1StringView in) noexcept
+{
+    const qsizetype len = in.size();
+    qt_from_latin1(out, in.data(), len);
+    return std::next(out, len);
+}
+
+char *QLatin1::convertFromUnicode(char *out, QStringView in) noexcept
+{
+    const qsizetype len = in.size();
+    qt_to_latin1(reinterpret_cast<uchar *>(out), in.utf16(), len);
+    return out + len;
+}
+
 /*!
     \fn QByteArray QString::toLatin1() const
 
@@ -5395,8 +5555,7 @@ static QByteArray qt_convert_to_local_8bit(QStringView string);
     Returns the local 8-bit representation of the string as a
     QByteArray.
 
-    On Unix systems this is equivalent to toUtf8(), on Windows the systems
-    current code page is being used.
+    \include qstring.qdocinc {qstring-local-8-bit-equivalent} {toUtf8}
 
     If this string contains any characters that cannot be encoded in the
     local 8-bit encoding, the returned byte array is undefined. Those
@@ -5593,8 +5752,7 @@ QString QString::fromLatin1(QByteArrayView ba)
 
     If \a size is \c{-1}, \c{strlen(str)} is used instead.
 
-    On Unix systems this is equivalent to fromUtf8(), on Windows the systems
-    current code page is being used.
+    \include qstring.qdocinc {qstring-local-8-bit-equivalent} {fromUtf8}
 
     \sa toLocal8Bit(), fromLatin1(), fromUtf8()
 */
@@ -5606,6 +5764,8 @@ QString QString::fromLatin1(QByteArrayView ba)
 
     Returns a QString initialized with the 8-bit string \a str.
 
+    \include qstring.qdocinc {qstring-local-8-bit-equivalent} {fromUtf8}
+
     \note: any null ('\\0') bytes in the byte array will be included in this
     string, converted to Unicode null characters (U+0000). This behavior is
     different from Qt 5.x.
@@ -5618,6 +5778,8 @@ QString QString::fromLatin1(QByteArrayView ba)
 
     Returns a QString initialized with the 8-bit string \a str.
 
+    \include qstring.qdocinc {qstring-local-8-bit-equivalent} {fromUtf8}
+
     \note: any null ('\\0') bytes in the byte array will be included in this
     string, converted to Unicode null characters (U+0000).
 */
@@ -6371,7 +6533,7 @@ int QString::compare_helper(const QChar *data1, qsizetype length1, const char *d
     Q_ASSERT(length1 >= 0);
     Q_ASSERT(data1 || length1 == 0);
     if (!data2)
-        return length1;
+        return qt_lencmp(length1, 0);
     if (Q_UNLIKELY(length2 < 0))
         length2 = qsizetype(strlen(data2));
     return QtPrivate::compareStrings(QStringView(data1, length1),
@@ -6388,6 +6550,18 @@ int QString::compare_helper(const QChar *data1, qsizetype length1, const char *d
   \overload compare()
 */
 
+/*!
+    \internal
+    \since 6.6
+*/
+int QLatin1StringView::compare_helper(const QLatin1StringView &s1, const char *s2, qsizetype len) noexcept
+{
+    // because qlatin1stringview.h can't include qutf8stringview.h
+    Q_ASSERT(len >= 0);
+    Q_ASSERT(s2 || len == 0);
+    return QtPrivate::compareStrings(s1, QUtf8StringView(s2, len));
+}
+
 /*!
     \internal
     \since 4.5
@@ -7149,7 +7323,7 @@ QString QString::vasprintf(const char *cformat, va_list ap)
                     }
                     default: {
                         int *n = va_arg(ap, int*);
-                        *n = result.size();
+                        *n = int(result.size());
                         break;
                     }
                 }
@@ -9094,8 +9268,7 @@ QString &QString::setRawData(const QChar *unicode, qsizetype size)
 /*! \fn QString QString::fromStdU16String(const std::u16string &str)
     \since 5.5
 
-    Returns a copy of the \a str string. The given string is assumed
-    to be encoded in UTF-16.
+    \include qstring.cpp {from-std-string} {UTF-16} {fromUtf16()}
 
     \sa fromUtf16(), fromStdWString(), fromStdU32String()
 */
@@ -9114,8 +9287,7 @@ QString &QString::setRawData(const QChar *unicode, qsizetype size)
 /*! \fn QString QString::fromStdU32String(const std::u32string &str)
     \since 5.5
 
-    Returns a copy of the \a str string. The given string is assumed
-    to be encoded in UCS-4.
+    \include qstring.cpp {from-std-string} {UCS-4} {fromUcs4()}
 
     \sa fromUcs4(), fromStdWString(), fromStdU16String()
 */
@@ -9131,1256 +9303,6 @@ QString &QString::setRawData(const QChar *unicode, qsizetype size)
     \sa toUcs4(), toStdWString(), toStdU16String()
 */
 
-/*! \class QLatin1StringView
-    \inmodule QtCore
-    \brief The QLatin1StringView class provides a thin wrapper around
-    a US-ASCII/Latin-1 encoded string literal.
-
-    \ingroup string-processing
-    \reentrant
-
-    Many of QString's member functions are overloaded to accept
-    \c{const char *} instead of QString. This includes the copy
-    constructor, the assignment operator, the comparison operators,
-    and various other functions such as \l{QString::insert()}{insert()},
-    \l{QString::append()}{append()}, and \l{QString::prepend()}{prepend()}.
-    Some of these functions are optimized to avoid constructing a
-    QString object for the \c{const char *} data. For example,
-    assuming \c str is a QString,
-
-    \snippet code/src_corelib_text_qstring.cpp 3
-
-    is much faster than
-
-    \snippet code/src_corelib_text_qstring.cpp 4
-
-    because it doesn't construct four temporary QString objects and
-    make a deep copy of the character data.
-
-    However, that is not true for all QString member functions that take
-    \c{const char *} and therefore applications should assume a temporary will
-    be created, such as in
-
-    \snippet code/src_corelib_text_qstring.cpp 4bis
-
-    Applications that define \l QT_NO_CAST_FROM_ASCII (as explained
-    in the QString documentation) don't have access to QString's
-    \c{const char *} API. To provide an efficient way of specifying
-    constant Latin-1 strings, Qt provides the QLatin1StringView, which is
-    just a very thin wrapper around a \c{const char *}. Using
-    QLatin1StringView, the example code above becomes
-
-    \snippet code/src_corelib_text_qstring.cpp 5
-
-    This is a bit longer to type, but it provides exactly the same
-    benefits as the first version of the code, and is faster than
-    converting the Latin-1 strings using QString::fromLatin1().
-
-    Thanks to the QString(QLatin1StringView) constructor,
-    QLatin1StringView can be used everywhere a QString is expected. For
-    example:
-
-    \snippet code/src_corelib_text_qstring.cpp 6
-
-    \note If the function you're calling with a QLatin1StringView
-    argument isn't actually overloaded to take QLatin1StringView, the
-    implicit conversion to QString will trigger a memory allocation,
-    which is usually what you want to avoid by using QLatin1StringView
-    in the first place. In those cases, using QStringLiteral may be
-    the better option.
-
-    \sa QString, QLatin1Char, {QStringLiteral()}{QStringLiteral},
-    QT_NO_CAST_FROM_ASCII
-*/
-
-/*!
-    \class QLatin1String
-    \inmodule QtCore
-    \brief QLatin1String is the same as QLatin1StringView.
-
-    QLatin1String is a view to a Latin-1 string. It's the same as
-    QLatin1StringView and is kept for compatibility reasons. It is
-    recommended to use QLatin1StringView instead.
-
-    Please see the QLatin1StringView documentation for details.
-*/
-
-/*!
-    \typedef QLatin1StringView::value_type
-    \since 5.10
-
-    Alias for \c{const char}. Provided for compatibility with the STL.
-*/
-
-/*!
-    \typedef QLatin1StringView::difference_type
-    \since 5.10
-
-    Alias for \c{qsizetype}. Provided for compatibility with the STL.
-*/
-
-/*!
-    \typedef QLatin1StringView::size_type
-    \since 5.10
-
-    Alias for \c{qsizetype}. Provided for compatibility with the STL.
-
-    \note In version prior to Qt 6, this was an alias for \c{int},
-    restricting the amount of data that could be held in a QLatin1StringView
-    on 64-bit architectures.
-*/
-
-/*!
-    \typedef QLatin1StringView::reference
-    \since 5.10
-
-    Alias for \c{value_type &}. Provided for compatibility with the STL.
-*/
-
-/*!
-    \typedef QLatin1StringView::const_reference
-    \since 5.11
-
-    Alias for \c{reference}. Provided for compatibility with the STL.
-*/
-
-/*!
-    \typedef QLatin1StringView::iterator
-    \since 5.10
-
-    QLatin1StringView does not support mutable iterators, so this is the same
-    as const_iterator.
-
-    \sa const_iterator, reverse_iterator
-*/
-
-/*!
-    \typedef QLatin1StringView::const_iterator
-    \since 5.10
-
-    \sa iterator, const_reverse_iterator
-*/
-
-/*!
-    \typedef QLatin1StringView::reverse_iterator
-    \since 5.10
-
-    QLatin1StringView does not support mutable reverse iterators, so this is the
-    same as const_reverse_iterator.
-
-    \sa const_reverse_iterator, iterator
-*/
-
-/*!
-    \typedef QLatin1StringView::const_reverse_iterator
-    \since 5.10
-
-    \sa reverse_iterator, const_iterator
-*/
-
-/*! \fn QLatin1StringView::QLatin1StringView()
-    \since 5.6
-
-    Constructs a QLatin1StringView object that stores a \nullptr.
-
-    \sa data(), isEmpty(), isNull(), {Distinction Between Null and Empty Strings}
-*/
-
-/*! \fn QLatin1StringView::QLatin1StringView(std::nullptr_t)
-    \since 6.4
-
-    Constructs a QLatin1StringView object that stores a \nullptr.
-
-    \sa data(), isEmpty(), isNull(), {Distinction Between Null and Empty Strings}
-*/
-
-/*! \fn QLatin1StringView::QLatin1StringView(const char *str)
-
-    Constructs a QLatin1StringView object that stores \a str.
-
-    The string data is \e not copied. The caller must be able to
-    guarantee that \a str will not be deleted or modified as long as
-    the QLatin1StringView object exists.
-
-    \sa latin1()
-*/
-
-/*! \fn QLatin1StringView::QLatin1StringView(const char *str, qsizetype size)
-
-    Constructs a QLatin1StringView object that stores \a str with \a size.
-
-    The string data is \e not copied. The caller must be able to
-    guarantee that \a str will not be deleted or modified as long as
-    the QLatin1StringView object exists.
-
-    \note: any null ('\\0') bytes in the byte array will be included in this
-    string, which will be converted to Unicode null characters (U+0000) if this
-    string is used by QString. This behavior is different from Qt 5.x.
-
-    \sa latin1()
-*/
-
-/*!
-    \fn QLatin1StringView::QLatin1StringView(const char *first, const char *last)
-    \since 5.10
-
-    Constructs a QLatin1StringView object that stores \a first with length
-    (\a last - \a first).
-
-    The range \c{[first,last)} must remain valid for the lifetime of
-    this Latin-1 string object.
-
-    Passing \nullptr as \a first is safe if \a last is \nullptr,
-    too, and results in a null Latin-1 string.
-
-    The behavior is undefined if \a last precedes \a first, \a first
-    is \nullptr and \a last is not, or if \c{last - first >
-    INT_MAX}.
-*/
-
-/*! \fn QLatin1StringView::QLatin1StringView(const QByteArray &str)
-
-    Constructs a QLatin1StringView object as a view on \a str.
-
-    The string data is \e not copied. The caller must be able to
-    guarantee that \a str will not be deleted or modified as long as
-    the QLatin1StringView object exists.
-
-    \sa latin1()
-*/
-
-/*! \fn QLatin1StringView::QLatin1StringView(QByteArrayView str)
-    \since 6.3
-
-    Constructs a QLatin1StringView object as a view on \a str.
-
-    The string data is \e not copied. The caller must be able to
-    guarantee that the data which \a str is pointing to will not
-    be deleted or modified as long as the QLatin1StringView object
-    exists. The size is obtained from \a str as-is, without checking
-    for a null-terminator.
-
-    \note: any null ('\\0') bytes in the byte array will be included in this
-    string, which will be converted to Unicode null characters (U+0000) if this
-    string is used by QString.
-
-    \sa latin1()
-*/
-
-/*!
-    \fn QString QLatin1StringView::toString() const
-    \since 6.0
-
-    Converts this Latin-1 string into a QString. Equivalent to
-    \code
-    return QString(*this);
-    \endcode
-*/
-
-/*! \fn const char *QLatin1StringView::latin1() const
-
-    Returns the start of the Latin-1 string referenced by this object.
-*/
-
-/*! \fn const char *QLatin1StringView::data() const
-
-    Returns the start of the Latin-1 string referenced by this object.
-*/
-
-/*! \fn const char *QLatin1StringView::constData() const
-    \since 6.4
-
-    Returns the start of the Latin-1 string referenced by this object.
-
-    This function is provided for compatibility with other Qt containers.
-
-    \sa data()
-*/
-
-/*! \fn qsizetype QLatin1StringView::size() const
-
-    Returns the size of the Latin-1 string referenced by this object.
-
-    \note In version prior to Qt 6, this function returned \c{int},
-    restricting the amount of data that could be held in a QLatin1StringView
-    on 64-bit architectures.
-*/
-
-/*! \fn qsizetype QLatin1StringView::length() const
-    \since 6.4
-
-    Same as size().
-
-    This function is provided for compatibility with other Qt containers.
-*/
-
-/*! \fn bool QLatin1StringView::isNull() const
-    \since 5.10
-
-    Returns whether the Latin-1 string referenced by this object is null
-    (\c{data() == nullptr}) or not.
-
-    \sa isEmpty(), data()
-*/
-
-/*! \fn bool QLatin1StringView::isEmpty() const
-    \since 5.10
-
-    Returns whether the Latin-1 string referenced by this object is empty
-    (\c{size() == 0}) or not.
-
-    \sa isNull(), size()
-*/
-
-/*! \fn bool QLatin1StringView::empty() const
-    \since 6.4
-
-    Returns whether the Latin-1 string referenced by this object is empty
-    (\c{size() == 0}) or not.
-
-    This function is provided for STL compatibility.
-
-    \sa isEmpty(), isNull(), size()
-*/
-
-/*! \fn QLatin1Char QLatin1StringView::at(qsizetype pos) const
-    \since 5.8
-
-    Returns the character at position \a pos in this object.
-
-    \note This function performs no error checking.
-    The behavior is undefined when \a pos < 0 or \a pos >= size().
-
-    \sa operator[]()
-*/
-
-/*! \fn QLatin1Char QLatin1StringView::operator[](qsizetype pos) const
-    \since 5.8
-
-    Returns the character at position \a pos in this object.
-
-    \note This function performs no error checking.
-    The behavior is undefined when \a pos < 0 or \a pos >= size().
-
-    \sa at()
-*/
-
-/*!
-    \fn QLatin1Char QLatin1StringView::front() const
-    \since 5.10
-
-    Returns the first character in the string.
-    Same as \c{at(0)}.
-
-    This function is provided for STL compatibility.
-
-    \warning Calling this function on an empty string constitutes
-    undefined behavior.
-
-    \sa back(), at(), operator[]()
-*/
-
-/*!
-    \fn QLatin1Char QLatin1StringView::first() const
-    \since 6.4
-
-    Returns the first character in the string.
-    Same as \c{at(0)} or front().
-
-    This function is provided for compatibility with other Qt containers.
-
-    \warning Calling this function on an empty string constitutes
-    undefined behavior.
-
-    \sa last(), front(), back()
-*/
-
-/*!
-    \fn QLatin1Char QLatin1StringView::back() const
-    \since 5.10
-
-    Returns the last character in the string.
-    Same as \c{at(size() - 1)}.
-
-    This function is provided for STL compatibility.
-
-    \warning Calling this function on an empty string constitutes
-    undefined behavior.
-
-    \sa front(), at(), operator[]()
-*/
-
-/*!
-    \fn QLatin1Char QLatin1StringView::last() const
-    \since 6.4
-
-    Returns the last character in the string.
-    Same as \c{at(size() - 1)} or back().
-
-    This function is provided for compatibility with other Qt containers.
-
-    \warning Calling this function on an empty string constitutes
-    undefined behavior.
-
-    \sa first(), back(), front()
-*/
-
-/*!
-    \fn int QLatin1StringView::compare(QStringView str, Qt::CaseSensitivity cs) const
-    \fn int QLatin1StringView::compare(QLatin1StringView l1, Qt::CaseSensitivity cs) const
-    \fn int QLatin1StringView::compare(QChar ch) const
-    \fn int QLatin1StringView::compare(QChar ch, Qt::CaseSensitivity cs) const
-    \since 5.14
-
-    Returns an integer that compares to zero as this string view compares
-    to the UTF-16 string viewed by \a str, the Latin-1 string viewed by \a l1,
-    or the character \a ch, respectively.
-
-    \include qstring.qdocinc {search-comparison-case-sensitivity} {search}
-
-    \sa operator==(), operator<(), operator>()
-*/
-
-
-/*!
-    \fn bool QLatin1StringView::startsWith(QStringView str, Qt::CaseSensitivity cs) const
-    \since 5.10
-    \fn bool QLatin1StringView::startsWith(QLatin1StringView l1, Qt::CaseSensitivity cs) const
-    \since 5.10
-    \fn bool QLatin1StringView::startsWith(QChar ch) const
-    \since 5.10
-    \fn bool QLatin1StringView::startsWith(QChar ch, Qt::CaseSensitivity cs) const
-    \since 5.10
-
-    Returns \c true if this Latin-1 string view starts with the UTF-16
-    string viewed by \a str, the Latin-1 string viewed by \a l1, or the
-    character \a ch, respectively; otherwise returns \c false.
-
-   \include qstring.qdocinc {search-comparison-case-sensitivity} {search}
-
-    \sa endsWith()
-*/
-
-/*!
-    \fn bool QLatin1StringView::endsWith(QStringView str, Qt::CaseSensitivity cs) const
-    \since 5.10
-    \fn bool QLatin1StringView::endsWith(QLatin1StringView l1, Qt::CaseSensitivity cs) const
-    \since 5.10
-    \fn bool QLatin1StringView::endsWith(QChar ch) const
-    \since 5.10
-    \fn bool QLatin1StringView::endsWith(QChar ch, Qt::CaseSensitivity cs) const
-    \since 5.10
-
-    Returns \c true if this Latin-1 string view ends with the UTF-16 string
-    viewed \a str, the Latin-1 string viewed by \a l1, or the character \a ch,
-    respectively; otherwise returns \c false.
-
-    \include qstring.qdocinc {search-comparison-case-sensitivity} {search}
-
-    \sa startsWith()
-*/
-
-/*!
-    \fn qsizetype QLatin1StringView::indexOf(QStringView str, qsizetype from = 0, Qt::CaseSensitivity cs = Qt::CaseSensitive) const
-    \fn qsizetype QLatin1StringView::indexOf(QLatin1StringView l1, qsizetype from = 0, Qt::CaseSensitivity cs = Qt::CaseSensitive) const
-    \fn qsizetype QLatin1StringView::indexOf(QChar c, qsizetype from = 0, Qt::CaseSensitivity cs = Qt::CaseSensitive) const
-    \since 5.14
-
-    Returns the index position in this Latin-1 string view of the first
-    occurrence of the UTF-16 string viewed by \a str, the Latin-1 string
-    viewed by \a l1, or the character \a ch, respectively, searching forward
-    from index position \a from. Returns -1 if \a str, \a l1 or \a c is not
-    found, respectively.
-
-    \include qstring.qdocinc {search-comparison-case-sensitivity} {search}
-
-    \include qstring.qdocinc negative-index-start-search-from-end
-
-    \sa QString::indexOf()
-*/
-
-/*!
-    \fn bool QLatin1StringView::contains(QStringView str, Qt::CaseSensitivity cs) const
-    \fn bool QLatin1StringView::contains(QLatin1StringView l1, Qt::CaseSensitivity cs) const
-    \fn bool QLatin1StringView::contains(QChar c, Qt::CaseSensitivity cs) const
-    \since 5.14
-
-    Returns \c true if this Latin-1 string view contains an occurrence of the
-    UTF-16 string viewed by \a str, the Latin-1 string viewed by \a l1, or the
-    character \a ch, respectively; otherwise returns \c false.
-
-    \include qstring.qdocinc {search-comparison-case-sensitivity} {search}
-
-    \sa indexOf(), QStringView::contains(), QStringView::indexOf(),
-    QString::indexOf()
-*/
-
-/*!
-    \fn qsizetype QLatin1StringView::lastIndexOf(QStringView str, qsizetype from, Qt::CaseSensitivity cs) const
-    \fn qsizetype QLatin1StringView::lastIndexOf(QLatin1StringView l1, qsizetype from, Qt::CaseSensitivity cs) const
-    \fn qsizetype QLatin1StringView::lastIndexOf(QChar c, qsizetype from, Qt::CaseSensitivity cs) const
-    \since 5.14
-
-    Returns the index position in this Latin-1 string view of the last
-    occurrence of the UTF-16 string viewed by \a str, the Latin-1 string
-    viewed by \a l1, or the character \a ch, respectively, searching backward
-    from index position \a from; returns -1 if \a str, \a l1 or \a ch is not
-    found, respectively.
-
-    \include qstring.qdocinc negative-index-start-search-from-end
-
-    \include qstring.qdocinc {search-comparison-case-sensitivity} {search}
-
-    \note When searching for a 0-length \a str or \a l1, the match at
-    the end of the data is excluded from the search by a negative \a
-    from, even though \c{-1} is normally thought of as searching from
-    the end of the string: the match at the end is \e after the last
-    character, so it is excluded. To include such a final empty match,
-    either give a positive value for \a from or omit the \a from
-    parameter entirely.
-
-    \sa indexOf(), QStringView::lastIndexOf(), QStringView::indexOf(),
-    QString::indexOf()
-*/
-
-/*!
-    \fn qsizetype QLatin1StringView::lastIndexOf(QStringView str, Qt::CaseSensitivity cs = Qt::CaseSensitive) const
-    \fn qsizetype QLatin1StringView::lastIndexOf(QLatin1StringView l1, Qt::CaseSensitivity cs = Qt::CaseSensitive) const
-    \since 6.2
-    \overload lastIndexOf()
-
-    Returns the index position in this Latin-1 string view of the last
-    occurrence of the UTF-16 string viewed by \a str or the Latin-1 string
-    viewed by \a l1, respectively. Returns -1 if \a str or \a l1 is not found,
-    respectively.
-
-    \include qstring.qdocinc {search-comparison-case-sensitivity} {search}
-*/
-
-/*!
-    \fn qsizetype QLatin1StringView::lastIndexOf(QChar ch, Qt::CaseSensitivity cs) const
-    \since 6.3
-    \overload
-*/
-
-/*!
-    \fn qsizetype QLatin1StringView::count(QStringView str, Qt::CaseSensitivity cs) const
-    \fn qsizetype QLatin1StringView::count(QLatin1StringView l1, Qt::CaseSensitivity cs) const
-    \fn qsizetype QLatin1StringView::count(QChar ch, Qt::CaseSensitivity cs) const
-    \since 6.4
-
-    Returns the number of (potentially overlapping) occurrences of the
-    UTF-16 string viewed by \a str, the Latin-1 string viewed by \a l1,
-    or the character \a ch, respectively, in this string view.
-
-    \include qstring.qdocinc {search-comparison-case-sensitivity} {search}
-
-    \sa contains(), indexOf()
-*/
-
-/*!
-    \fn QLatin1StringView::const_iterator QLatin1StringView::begin() const
-    \since 5.10
-
-    Returns a const \l{STL-style iterators}{STL-style iterator} pointing to the
-    first character in the string.
-
-    This function is provided for STL compatibility.
-
-    \sa end(), cbegin(), rbegin(), data()
-*/
-
-/*!
-    \fn QLatin1StringView::const_iterator QLatin1StringView::cbegin() const
-    \since 5.10
-
-    Same as begin().
-
-    This function is provided for STL compatibility.
-
-    \sa cend(), begin(), crbegin(), data()
-*/
-
-/*!
-    \fn QLatin1StringView::const_iterator QLatin1StringView::constBegin() const
-    \since 6.4
-
-    Same as begin().
-
-    This function is provided for compatibility with other Qt containers.
-
-    \sa constEnd(), begin(), cbegin(), data()
-*/
-
-/*!
-    \fn QLatin1StringView::const_iterator QLatin1StringView::end() const
-    \since 5.10
-
-    Returns a const \l{STL-style iterators}{STL-style iterator} pointing just
-    after the last character in the string.
-
-    This function is provided for STL compatibility.
-
-    \sa begin(), cend(), rend()
-*/
-
-/*! \fn QLatin1StringView::const_iterator QLatin1StringView::cend() const
-    \since 5.10
-
-    Same as end().
-
-    This function is provided for STL compatibility.
-
-    \sa cbegin(), end(), crend()
-*/
-
-/*! \fn QLatin1StringView::const_iterator QLatin1StringView::constEnd() const
-    \since 6.4
-
-    Same as end().
-
-    This function is provided for compatibility with other Qt containers.
-
-    \sa constBegin(), end(), cend(), crend()
-*/
-
-/*!
-    \fn QLatin1StringView::const_reverse_iterator QLatin1StringView::rbegin() const
-    \since 5.10
-
-    Returns a const \l{STL-style iterators}{STL-style} reverse iterator pointing
-    to the first character in the string, in reverse order.
-
-    This function is provided for STL compatibility.
-
-    \sa rend(), crbegin(), begin()
-*/
-
-/*!
-    \fn QLatin1StringView::const_reverse_iterator QLatin1StringView::crbegin() const
-    \since 5.10
-
-    Same as rbegin().
-
-    This function is provided for STL compatibility.
-
-    \sa crend(), rbegin(), cbegin()
-*/
-
-/*!
-    \fn QLatin1StringView::const_reverse_iterator QLatin1StringView::rend() const
-    \since 5.10
-
-    Returns a \l{STL-style iterators}{STL-style} reverse iterator pointing just
-    after the last character in the string, in reverse order.
-
-    This function is provided for STL compatibility.
-
-    \sa rbegin(), crend(), end()
-*/
-
-/*!
-    \fn QLatin1StringView::const_reverse_iterator QLatin1StringView::crend() const
-    \since 5.10
-
-    Same as rend().
-
-    This function is provided for STL compatibility.
-
-    \sa crbegin(), rend(), cend()
-*/
-
-/*!
-    \fn QLatin1StringView QLatin1StringView::mid(qsizetype start, qsizetype length) const
-    \since 5.8
-
-    Returns the substring of length \a length starting at position
-    \a start in this Latin-1 string view.
-
-    If you know that \a start and \a length cannot be out of bounds, use
-    sliced() instead in new code, because it is faster.
-
-    Returns an empty Latin-1 string view if \a start exceeds the length
-    of this string view. If there are less than \a length characters available
-    in this string view starting at \a start, or if \a length is negative
-    (default), the function returns all characters that are available from
-    \a start.
-
-    \sa first(), last(), sliced(), chopped(), chop(), truncate()
-*/
-
-/*!
-    \fn QLatin1StringView QLatin1StringView::left(qsizetype length) const
-    \since 5.8
-
-    If you know that \a length cannot be out of bounds, use first() instead in
-    new code, because it is faster.
-
-    Returns the substring of length \a length starting at position
-    0 in this Latin-1 string view.
-
-    The entire Latin-1 string view is returned if \a length is greater
-    than or equal to size(), or less than zero.
-
-    \sa first(), last(), sliced(), startsWith(), chopped(), chop(), truncate()
-*/
-
-/*!
-    \fn QLatin1StringView QLatin1StringView::right(qsizetype length) const
-    \since 5.8
-
-    If you know that \a length cannot be out of bounds, use last() instead in
-    new code, because it is faster.
-
-    Returns the substring of length \a length starting at position
-    size() - \a length in this Latin-1 string view.
-
-    The entire Latin-1 string view is returned if \a length is greater
-    than or equal to size(), or less than zero.
-
-    \sa first(), last(), sliced(), endsWith(), chopped(), chop(), truncate()
-*/
-
-/*!
-    \fn QLatin1StringView QLatin1StringView::first(qsizetype n) const
-    \since 6.0
-
-    Returns a Latin-1 string view that contains the first \a n characters
-    of this string view.
-
-    \note The behavior is undefined when \a n < 0 or \a n > size().
-
-    \sa last(), startsWith(), chopped(), chop(), truncate()
-*/
-
-/*!
-    \fn QLatin1StringView QLatin1StringView::last(qsizetype n) const
-    \since 6.0
-
-    Returns a Latin-1 string view that contains the last \a n characters
-    of this string view.
-
-    \note The behavior is undefined when \a n < 0 or \a n > size().
-
-    \sa first(), endsWith(), chopped(), chop(), truncate()
-*/
-
-/*!
-    \fn QLatin1StringView QLatin1StringView::sliced(qsizetype pos, qsizetype n) const
-    \since 6.0
-
-    Returns a Latin-1 string view that points to \a n characters of this
-    string view, starting at position \a pos.
-
-    \note The behavior is undefined when \a pos < 0, \a n < 0,
-    or \c{pos + n > size()}.
-
-    \sa first(), last(), chopped(), chop(), truncate()
-*/
-
-/*!
-    \fn QLatin1StringView QLatin1StringView::sliced(qsizetype pos) const
-    \since 6.0
-
-    Returns a Latin-1 string view starting at position \a pos in this
-    string view, and extending to its end.
-
-    \note The behavior is undefined when \a pos < 0 or \a pos > size().
-
-    \sa first(), last(), chopped(), chop(), truncate()
-*/
-
-/*!
-    \fn QLatin1StringView QLatin1StringView::chopped(qsizetype length) const
-    \since 5.10
-
-    Returns the substring of length size() - \a length starting at the
-    beginning of this object.
-
-    Same as \c{left(size() - length)}.
-
-    \note The behavior is undefined when \a length < 0 or \a length > size().
-
-    \sa sliced(), first(), last(), chop(), truncate()
-*/
-
-/*!
-    \fn void QLatin1StringView::truncate(qsizetype length)
-    \since 5.10
-
-    Truncates this string to length \a length.
-
-    Same as \c{*this = left(length)}.
-
-    \note The behavior is undefined when \a length < 0 or \a length > size().
-
-    \sa sliced(), first(), last(), chopped(), chop()
-*/
-
-/*!
-    \fn void QLatin1StringView::chop(qsizetype length)
-    \since 5.10
-
-    Truncates this string by \a length characters.
-
-    Same as \c{*this = left(size() - length)}.
-
-    \note The behavior is undefined when \a length < 0 or \a length > size().
-
-    \sa sliced(), first(), last(), chopped(), truncate()
-*/
-
-/*!
-    \fn QLatin1StringView QLatin1StringView::trimmed() const
-    \since 5.10
-
-    Strips leading and trailing whitespace and returns the result.
-
-    Whitespace means any character for which QChar::isSpace() returns
-    \c true. This includes the ASCII characters '\\t', '\\n', '\\v',
-    '\\f', '\\r', and ' '.
-*/
-
-/*!
-    \fn bool QLatin1StringView::operator==(const char *other) const
-    \since 4.3
-
-    Returns \c true if the string is equal to const char pointer \a other;
-    otherwise returns \c false.
-
-    The \a other const char pointer is converted to a QString using
-    the QString::fromUtf8() function.
-
-    You can disable this operator by defining
-    \l QT_NO_CAST_FROM_ASCII when you compile your applications. This
-    can be useful if you want to ensure that all user-visible strings
-    go through QObject::tr(), for example.
-
-    \sa {Comparing Strings}
-*/
-
-/*!
-    \fn bool QLatin1StringView::operator==(const QByteArray &other) const
-    \since 5.0
-    \overload
-
-    The \a other byte array is converted to a QString using
-    the QString::fromUtf8() function.
-
-    You can disable this operator by defining
-    \l QT_NO_CAST_FROM_ASCII when you compile your applications. This
-    can be useful if you want to ensure that all user-visible strings
-    go through QObject::tr(), for example.
-*/
-
-/*!
-    \fn bool QLatin1StringView::operator!=(const char *other) const
-    \since 4.3
-
-    Returns \c true if this string is not equal to const char pointer \a other;
-    otherwise returns \c false.
-
-    The \a other const char pointer is converted to a QString using
-    the QString::fromUtf8() function.
-
-    You can disable this operator by defining
-    \l QT_NO_CAST_FROM_ASCII when you compile your applications. This
-    can be useful if you want to ensure that all user-visible strings
-    go through QObject::tr(), for example.
-
-    \sa {Comparing Strings}
-*/
-
-/*!
-    \fn bool QLatin1StringView::operator!=(const QByteArray &other) const
-    \since 5.0
-    \overload operator!=()
-
-    The \a other byte array is converted to a QString using
-    the QString::fromUtf8() function.
-
-    You can disable this operator by defining
-    \l QT_NO_CAST_FROM_ASCII when you compile your applications. This
-    can be useful if you want to ensure that all user-visible strings
-    go through QObject::tr(), for example.
-*/
-
-/*!
-    \fn bool QLatin1StringView::operator>(const char *other) const
-    \since 4.3
-
-    Returns \c true if this string is lexically greater than const char pointer
-    \a other; otherwise returns \c false.
-
-    The \a other const char pointer is converted to a QString using
-    the QString::fromUtf8() function.
-
-    You can disable this operator by defining \l QT_NO_CAST_FROM_ASCII
-    when you compile your applications. This can be useful if you want
-    to ensure that all user-visible strings go through QObject::tr(),
-    for example.
-
-    \sa {Comparing Strings}
-*/
-
-/*!
-    \fn bool QLatin1StringView::operator>(const QByteArray &other) const
-    \since 5.0
-    \overload
-
-    The \a other byte array is converted to a QString using
-    the QString::fromUtf8() function.
-
-    You can disable this operator by defining \l QT_NO_CAST_FROM_ASCII
-    when you compile your applications. This can be useful if you want
-    to ensure that all user-visible strings go through QObject::tr(),
-    for example.
-*/
-
-/*!
-    \fn bool QLatin1StringView::operator<(const char *other) const
-    \since 4.3
-
-    Returns \c true if this string is lexically less than const char pointer
-    \a other; otherwise returns \c false.
-
-    The \a other const char pointer is converted to a QString using
-    the QString::fromUtf8() function.
-
-    You can disable this operator by defining
-    \l QT_NO_CAST_FROM_ASCII when you compile your applications. This
-    can be useful if you want to ensure that all user-visible strings
-    go through QObject::tr(), for example.
-
-    \sa {Comparing Strings}
-*/
-
-/*!
-    \fn bool QLatin1StringView::operator<(const QByteArray &other) const
-    \since 5.0
-    \overload
-
-    The \a other byte array is converted to a QString using
-    the QString::fromUtf8() function.
-
-    You can disable this operator by defining
-    \l QT_NO_CAST_FROM_ASCII when you compile your applications. This
-    can be useful if you want to ensure that all user-visible strings
-    go through QObject::tr(), for example.
-*/
-
-/*!
-    \fn bool QLatin1StringView::operator>=(const char *other) const
-    \since 4.3
-
-    Returns \c true if this string is lexically greater than or equal to
-    const char pointer \a other; otherwise returns \c false.
-
-    The \a other const char pointer is converted to a QString using
-    the QString::fromUtf8() function.
-
-    You can disable this operator by defining
-    \l QT_NO_CAST_FROM_ASCII when you compile your applications. This
-    can be useful if you want to ensure that all user-visible strings
-    go through QObject::tr(), for example.
-
-    \sa {Comparing Strings}
-*/
-
-/*!
-    \fn bool QLatin1StringView::operator>=(const QByteArray &other) const
-    \since 5.0
-    \overload
-
-    The \a other byte array is converted to a QString using
-    the QString::fromUtf8() function.
-
-    You can disable this operator by defining
-    \l QT_NO_CAST_FROM_ASCII when you compile your applications. This
-    can be useful if you want to ensure that all user-visible strings
-    go through QObject::tr(), for example.
-*/
-
-/*!
-    \fn bool QLatin1StringView::operator<=(const char *other) const
-    \since 4.3
-
-    Returns \c true if this string is lexically less than or equal to
-    const char pointer \a other; otherwise returns \c false.
-
-    The \a other const char pointer is converted to a QString using
-    the QString::fromUtf8() function.
-
-    You can disable this operator by defining
-    \l QT_NO_CAST_FROM_ASCII when you compile your applications. This
-    can be useful if you want to ensure that all user-visible strings
-    go through QObject::tr(), for example.
-
-    \sa {Comparing Strings}
-*/
-
-/*!
-    \fn bool QLatin1StringView::operator<=(const QByteArray &other) const
-    \since 5.0
-    \overload
-
-    The \a other byte array is converted to a QString using
-    the QString::fromUtf8() function.
-
-    You can disable this operator by defining
-    \l QT_NO_CAST_FROM_ASCII when you compile your applications. This
-    can be useful if you want to ensure that all user-visible strings
-    go through QObject::tr(), for example.
-*/
-
-/*! \fn bool QLatin1StringView::operator==(QLatin1StringView s1, QLatin1StringView s2)
-
-    Returns \c true if string \a s1 is lexically equal to string \a s2;
-    otherwise returns \c false.
-*/
-/*! \fn bool QLatin1StringView::operator!=(QLatin1StringView s1, QLatin1StringView s2)
-
-    Returns \c true if string \a s1 is lexically not equal to string \a s2;
-    otherwise returns \c false.
-*/
-/*! \fn bool QLatin1StringView::operator<(QLatin1StringView s1, QLatin1StringView s2)
-
-    Returns \c true if string \a s1 is lexically less than string \a s2;
-    otherwise returns \c false.
-*/
-/*! \fn bool QLatin1StringView::operator<=(QLatin1StringView s1, QLatin1StringView s2)
-
-    Returns \c true if string \a s1 is lexically less than or equal to
-    string \a s2; otherwise returns \c false.
-*/
-/*! \fn bool QLatin1StringView::operator>(QLatin1StringView s1, QLatin1StringView s2)
-
-    Returns \c true if string \a s1 is lexically greater than string \a s2;
-    otherwise returns \c false.
-*/
-/*! \fn bool QLatin1StringView::operator>=(QLatin1StringView s1, QLatin1StringView s2)
-
-    Returns \c true if string \a s1 is lexically greater than or equal
-    to string \a s2; otherwise returns \c false.
-*/
-
-/*! \fn bool QLatin1StringView::operator==(QChar ch, QLatin1StringView s)
-
-    Returns \c true if char \a ch is lexically equal to string \a s;
-    otherwise returns \c false.
-*/
-/*! \fn bool QLatin1StringView::operator<(QChar ch, QLatin1StringView s)
-
-    Returns \c true if char \a ch is lexically less than string \a s;
-    otherwise returns \c false.
-*/
-/*! \fn bool QLatin1StringView::operator>(QChar ch, QLatin1StringView s)
-    Returns \c true if char \a ch is lexically greater than string \a s;
-    otherwise returns \c false.
-*/
-/*! \fn bool QLatin1StringView::operator!=(QChar ch, QLatin1StringView s)
-
-    Returns \c true if char \a ch is lexically not equal to string \a s;
-    otherwise returns \c false.
-*/
-/*! \fn bool QLatin1StringView::operator<=(QChar ch, QLatin1StringView s)
-
-    Returns \c true if char \a ch is lexically less than or equal to
-    string \a s; otherwise returns \c false.
-*/
-/*! \fn bool QLatin1StringView::operator>=(QChar ch, QLatin1StringView s)
-
-    Returns \c true if char \a ch is lexically greater than or equal to
-    string \a s; otherwise returns \c false.
-*/
-
-/*! \fn bool QLatin1StringView::operator==(QLatin1StringView s, QChar ch)
-
-    Returns \c true if string \a s is lexically equal to char \a ch;
-    otherwise returns \c false.
-*/
-/*! \fn bool QLatin1StringView::operator<(QLatin1StringView s, QChar ch)
-
-    Returns \c true if string \a s is lexically less than char \a ch;
-    otherwise returns \c false.
-*/
-/*! \fn bool QLatin1StringView::operator>(QLatin1StringView s, QChar ch)
-
-    Returns \c true if string \a s is lexically greater than char \a ch;
-    otherwise returns \c false.
-*/
-/*! \fn bool QLatin1StringView::operator!=(QLatin1StringView s, QChar ch)
-
-    Returns \c true if string \a s is lexically not equal to char \a ch;
-    otherwise returns \c false.
-*/
-/*! \fn bool QLatin1StringView::operator<=(QLatin1StringView s, QChar ch)
-
-    Returns \c true if string \a s is lexically less than or equal to
-    char \a ch; otherwise returns \c false.
-*/
-/*! \fn bool QLatin1StringView::operator>=(QLatin1StringView s, QChar ch)
-
-    Returns \c true if string \a s is lexically greater than or equal to
-    char \a ch; otherwise returns \c false.
-*/
-
-/*! \fn bool QLatin1StringView::operator==(QStringView s1, QLatin1StringView s2)
-
-    Returns \c true if string view \a s1 is lexically equal to string \a s2;
-    otherwise returns \c false.
-*/
-/*! \fn bool QLatin1StringView::operator<(QStringView s1, QLatin1StringView s2)
-
-    Returns \c true if string view \a s1 is lexically less than string \a s2;
-    otherwise returns \c false.
-*/
-/*! \fn bool QLatin1StringView::operator>(QStringView s1, QLatin1StringView s2)
-
-    Returns \c true if string view \a s1 is lexically greater than string \a s2;
-    otherwise returns \c false.
-*/
-/*! \fn bool QLatin1StringView::operator!=(QStringView s1, QLatin1StringView s2)
-
-    Returns \c true if string view \a s1 is lexically not equal to string \a s2;
-    otherwise returns \c false.
-*/
-/*! \fn bool QLatin1StringView::operator<=(QStringView s1, QLatin1StringView s2)
-
-    Returns \c true if string view \a s1 is lexically less than or equal to
-    string \a s2; otherwise returns \c false.
-*/
-/*! \fn bool QLatin1StringView::operator>=(QStringView s1, QLatin1StringView s2)
-
-    Returns \c true if string view \a s1 is lexically greater than or equal to
-    string \a s2; otherwise returns \c false.
-*/
-
-/*! \fn bool QLatin1StringView::operator==(QLatin1StringView s1, QStringView s2)
-
-    Returns \c true if string \a s1 is lexically equal to string view \a s2;
-    otherwise returns \c false.
-*/
-/*! \fn bool QLatin1StringView::operator<(QLatin1StringView s1, QStringView s2)
-
-    Returns \c true if string \a s1 is lexically less than string view \a s2;
-    otherwise returns \c false.
-*/
-/*! \fn bool QLatin1StringView::operator>(QLatin1StringView s1, QStringView s2)
-
-    Returns \c true if string \a s1 is lexically greater than string view \a s2;
-    otherwise returns \c false.
-*/
-/*! \fn bool QLatin1StringView::operator!=(QLatin1StringView s1, QStringView s2)
-
-    Returns \c true if string \a s1 is lexically not equal to string view \a s2;
-    otherwise returns \c false.
-*/
-/*! \fn bool QLatin1StringView::operator<=(QLatin1StringView s1, QStringView s2)
-
-    Returns \c true if string \a s1 is lexically less than or equal to
-    string view \a s2; otherwise returns \c false.
-*/
-/*! \fn bool QLatin1StringView::operator>=(QLatin1StringView s1, QStringView s2)
-
-    Returns \c true if string \a s1 is lexically greater than or equal to
-    string view \a s2; otherwise returns \c false.
-*/
-
-/*! \fn bool QLatin1StringView::operator==(const char *s1, QLatin1StringView s2)
-
-    Returns \c true if const char pointer \a s1 is lexically equal to
-    string \a s2; otherwise returns \c false.
-*/
-/*! \fn bool QLatin1StringView::operator<(const char *s1, QLatin1StringView s2)
-
-    Returns \c true if const char pointer \a s1 is lexically less than
-    string \a s2; otherwise returns \c false.
-*/
-/*! \fn bool QLatin1StringView::operator>(const char *s1, QLatin1StringView s2)
-
-    Returns \c true if const char pointer \a s1 is lexically greater than
-    string \a s2; otherwise returns \c false.
-*/
-/*! \fn bool QLatin1StringView::operator!=(const char *s1, QLatin1StringView s2)
-
-    Returns \c true if const char pointer \a s1 is lexically not equal to
-    string \a s2; otherwise returns \c false.
-*/
-/*! \fn bool QLatin1StringView::operator<=(const char *s1, QLatin1StringView s2)
-
-    Returns \c true if const char pointer \a s1 is lexically less than or
-    equal to string \a s2; otherwise returns \c false.
-*/
-/*! \fn bool QLatin1StringView::operator>=(const char *s1, QLatin1StringView s2)
-
-    Returns \c true if const char pointer \a s1 is lexically greater than or
-    equal to string \a s2; otherwise returns \c false.
-*/
-
-/*!
-    \fn qlonglong QLatin1StringView::toLongLong(bool *ok, int base) const
-    \fn qulonglong QLatin1StringView::toULongLong(bool *ok, int base) const
-    \fn int QLatin1StringView::toInt(bool *ok, int base) const
-    \fn uint QLatin1StringView::toUInt(bool *ok, int base) const
-    \fn long QLatin1StringView::toLong(bool *ok, int base) const
-    \fn ulong QLatin1StringView::toULong(bool *ok, int base) const
-    \fn short QLatin1StringView::toShort(bool *ok, int base) const
-    \fn ushort QLatin1StringView::toUShort(bool *ok, int base) const
-
-    \since 6.4
-
-    Returns this QLatin1StringView converted to a corresponding numeric value using
-    base \a base, which is ten by default. Bases 0 and 2 through 36 are supported,
-    using letters for digits beyond 9; A is ten, B is eleven and so on.
-
-    If \a base is 0, the base is determined automatically using the following
-    rules (in this order), if the Latin-1 string view begins with:
-
-    \list
-        \li \c "0x", the rest of it is read as hexadecimal (base 16)
-        \li \c "0b", the rest of it is read as binary (base 2)
-        \li \c "0", the rest of it is read as octal (base 8)
-        \li otherwise it is read as decimal
-    \endlist
-
-    Returns 0 if the conversion fails.
-
-    If \a ok is not \nullptr, failure is reported by setting *\a{ok}
-    to \c false, and success by setting *\a{ok} to \c true.
-
-//! [latin1-numeric-conversion-note]
-    \note The conversion of the number is performed in the default C locale,
-    regardless of the user's locale. Use QLocale to perform locale-aware
-    conversions between numbers and strings.
-
-    This function ignores leading and trailing spacing characters.
-//! [latin1-numeric-conversion-note]
-
-    \note Support for the "0b" prefix was added in Qt 6.4.
-*/
-
-/*!
-    \fn double QLatin1StringView::toDouble(bool *ok) const
-    \fn float QLatin1StringView::toFloat(bool *ok) const
-    \since 6.4
-
-    Returns this QLatin1StringView converted to a corresponding floating-point value.
-
-    Returns an infinity if the conversion overflows or 0.0 if the
-    conversion fails for other reasons (e.g. underflow).
-
-    If \a ok is not \nullptr, failure is reported by setting *\a{ok}
-    to \c false, and success by setting *\a{ok} to \c true.
-
-    \warning The QLatin1StringView content may only contain valid numerical
-    characters which includes the plus/minus sign, the character e used in
-    scientific notation, and the decimal point. Including the unit or additional
-    characters leads to a conversion error.
-
-    \include qstring.cpp latin1-numeric-conversion-note
-*/
-
 #if !defined(QT_NO_DATASTREAM) || defined(QT_BOOTSTRAPPED)
 /*!
     \fn QDataStream &operator<<(QDataStream &stream, const QString &string)
@@ -10619,11 +9541,8 @@ qsizetype QtPrivate::count(QLatin1StringView haystack, QChar needle, Qt::CaseSen
     if (cs == Qt::CaseSensitive) {
         return std::count(haystack.cbegin(), haystack.cend(), needle.toLatin1());
     } else {
-        auto toLower = [](char ch) { return latin1Lower[uchar(ch)]; };
-        const uchar ch = toLower(needle.toLatin1());
-        return std::count_if(haystack.cbegin(), haystack.cend(), [&toLower, ch](const char c) {
-            return toLower(c) == ch;
-        });
+        return std::count_if(haystack.cbegin(), haystack.cend(),
+                             CaseInsensitiveL1::matcher(needle.toLatin1()));
     }
 }
 
@@ -10851,10 +9770,7 @@ qsizetype QtPrivate::findString(QLatin1StringView haystack, qsizetype from, QLat
     if (needle.size() <= threshold) {
         const auto begin = haystack.begin();
         const auto end = haystack.end() - needle.size() + 1;
-        const uchar needle1 = latin1Lower[uchar(needle[0].toLatin1())];
-        auto ciMatch = [needle1](const char ch) {
-            return latin1Lower[uchar(ch)] == needle1;
-        };
+        auto ciMatch = CaseInsensitiveL1::matcher(needle[0].toLatin1());
         const qsizetype nlen1 = needle.size() - 1;
         for (auto it = std::find_if(begin + from, end, ciMatch); it < end;
              it = std::find_if(it + 1, end, ciMatch)) {
@@ -11121,25 +10037,6 @@ QString QString::toHtmlEscaped() const
     \sa Qt::Literals::StringLiterals
 */
 
-/*!
-    \fn Qt::Literals::StringLiterals::operator""_L1(const char *str, size_t size)
-
-    \relates QLatin1StringView
-    \since 6.4
-
-    Literal operator that creates a QLatin1StringView out of the first \a size
-    characters in the char string literal \a str.
-
-    The following code creates a QLatin1StringView:
-    \code
-    using namespace Qt::Literals::StringLiterals;
-
-    auto str = "hello"_L1;
-    \endcode
-
-    \sa Qt::Literals::StringLiterals
-*/
-
 /*!
     \internal
  */
@@ -11234,5 +10131,4 @@ void QAbstractConcatenable::appendLatin1To(QLatin1StringView in, QChar *out) noe
 
 QT_END_NAMESPACE
 
-#undef IS_RAW_DATA
 #undef REHASH
diff --git a/src/corelib/text/qstring.h b/src/corelib/text/qstring.h
index e6fa0d49..c00885da 100644
--- a/src/corelib/text/qstring.h
+++ b/src/corelib/text/qstring.h
@@ -15,6 +15,7 @@
 #include <QtCore/qbytearray.h>
 #include <QtCore/qbytearrayview.h>
 #include <QtCore/qarraydata.h>
+#include <QtCore/qlatin1stringview.h>
 #include <QtCore/qnamespace.h>
 #include <QtCore/qstringliteral.h>
 #include <QtCore/qstringalgorithms.h>
@@ -23,6 +24,7 @@
 
 #include <string>
 #include <iterator>
+#include <QtCore/q20memory.h>
 
 #include <stdarg.h>
 
@@ -35,11 +37,7 @@ Q_FORWARD_DECLARE_CF_TYPE(CFString);
 Q_FORWARD_DECLARE_OBJC_CLASS(NSString);
 #endif
 
-#if 0
-// Workaround for generating forward headers
-#pragma qt_class(QLatin1String)
-#pragma qt_class(QLatin1StringView)
-#endif
+class tst_QString;
 
 QT_BEGIN_NAMESPACE
 
@@ -49,333 +47,15 @@ class QString;
 
 namespace QtPrivate {
 template <bool...B> class BoolList;
+
+template <typename Char>
+using IsCompatibleChar32TypeHelper =
+    std::is_same<Char, char32_t>;
+template <typename Char>
+using IsCompatibleChar32Type
+    = IsCompatibleChar32TypeHelper<q20::remove_cvref_t<Char>>;
 }
 
-#if QT_VERSION >= QT_VERSION_CHECK(7, 0, 0) || defined(QT_BOOTSTRAPPED) || defined(Q_QDOC)
-#    define Q_L1S_VIEW_IS_PRIMARY
-class QLatin1StringView
-#else
-class QLatin1String
-#endif
-{
-public:
-#ifdef Q_L1S_VIEW_IS_PRIMARY
-    constexpr inline QLatin1StringView() noexcept {}
-    constexpr QLatin1StringView(std::nullptr_t) noexcept : QLatin1StringView() {}
-    constexpr inline explicit QLatin1StringView(const char *s) noexcept
-        : QLatin1StringView(s, s ? qsizetype(QtPrivate::lengthHelperPointer(s)) : 0) {}
-    constexpr QLatin1StringView(const char *f, const char *l)
-        : QLatin1StringView(f, qsizetype(l - f)) {}
-    constexpr inline QLatin1StringView(const char *s, qsizetype sz) noexcept : m_data(s), m_size(sz) {}
-    explicit QLatin1StringView(const QByteArray &s) noexcept
-        : QLatin1StringView(s.constData(), s.size()) {}
-    constexpr explicit QLatin1StringView(QByteArrayView s) noexcept
-        : QLatin1StringView(s.constData(), s.size()) {}
-#else
-    constexpr inline QLatin1String() noexcept : m_size(0), m_data(nullptr) {}
-    Q_WEAK_OVERLOAD
-    constexpr QLatin1String(std::nullptr_t) noexcept : QLatin1String() {}
-    constexpr inline explicit QLatin1String(const char *s) noexcept
-        : m_size(s ? qsizetype(QtPrivate::lengthHelperPointer(s)) : 0), m_data(s) {}
-    constexpr QLatin1String(const char *f, const char *l)
-        : QLatin1String(f, qsizetype(l - f)) {}
-    constexpr inline QLatin1String(const char *s, qsizetype sz) noexcept : m_size(sz), m_data(s) {}
-    explicit QLatin1String(const QByteArray &s) noexcept : m_size(s.size()), m_data(s.constData()) {}
-    constexpr explicit QLatin1String(QByteArrayView s) noexcept : m_size(s.size()), m_data(s.data()) {}
-#endif // !Q_L1S_VIEW_IS_PRIMARY
-
-    inline QString toString() const;
-
-    constexpr const char *latin1() const noexcept { return m_data; }
-    constexpr qsizetype size() const noexcept { return m_size; }
-    constexpr const char *data() const noexcept { return m_data; }
-    [[nodiscard]] constexpr const char *constData() const noexcept { return data(); }
-    [[nodiscard]] constexpr const char *constBegin() const noexcept { return begin(); }
-    [[nodiscard]] constexpr const char *constEnd() const noexcept { return end(); }
-
-    [[nodiscard]] constexpr QLatin1Char first() const { return front(); }
-    [[nodiscard]] constexpr QLatin1Char last() const { return back(); }
-
-    [[nodiscard]] constexpr qsizetype length() const noexcept { return size(); }
-
-    constexpr bool isNull() const noexcept { return !data(); }
-    constexpr bool isEmpty() const noexcept { return !size(); }
-
-    [[nodiscard]] constexpr bool empty() const noexcept { return size() == 0; }
-
-    template <typename...Args>
-    [[nodiscard]] inline QString arg(Args &&...args) const;
-
-    [[nodiscard]] constexpr QLatin1Char at(qsizetype i) const
-    {
-        Q_ASSERT(i >= 0);
-        Q_ASSERT(i < size());
-        return QLatin1Char(m_data[i]);
-    }
-    [[nodiscard]] constexpr QLatin1Char operator[](qsizetype i) const { return at(i); }
-
-    [[nodiscard]] constexpr QLatin1Char front() const { return at(0); }
-    [[nodiscard]] constexpr QLatin1Char back() const { return at(size() - 1); }
-
-    [[nodiscard]] int compare(QStringView other, Qt::CaseSensitivity cs = Qt::CaseSensitive) const noexcept
-    { return QtPrivate::compareStrings(*this, other, cs); }
-    [[nodiscard]] int compare(QLatin1StringView other, Qt::CaseSensitivity cs = Qt::CaseSensitive) const noexcept
-    { return QtPrivate::compareStrings(*this, other, cs); }
-    [[nodiscard]] inline int compare(QUtf8StringView other, Qt::CaseSensitivity cs = Qt::CaseSensitive) const noexcept;
-    [[nodiscard]] constexpr int compare(QChar c) const noexcept
-    { return isEmpty() ? -1 : front() == c ? int(size() > 1) : uchar(m_data[0]) - c.unicode(); }
-    [[nodiscard]] int compare(QChar c, Qt::CaseSensitivity cs) const noexcept
-    { return QtPrivate::compareStrings(*this, QStringView(&c, 1), cs); }
-    [[nodiscard]] bool startsWith(QStringView s, Qt::CaseSensitivity cs = Qt::CaseSensitive) const noexcept
-    { return QtPrivate::startsWith(*this, s, cs); }
-    [[nodiscard]] bool startsWith(QLatin1StringView s, Qt::CaseSensitivity cs = Qt::CaseSensitive) const noexcept
-    { return QtPrivate::startsWith(*this, s, cs); }
-    [[nodiscard]] constexpr bool startsWith(QChar c) const noexcept
-    { return !isEmpty() && front() == c; }
-    [[nodiscard]] inline bool startsWith(QChar c, Qt::CaseSensitivity cs) const noexcept
-    { return QtPrivate::startsWith(*this, QStringView(&c, 1), cs); }
-
-    [[nodiscard]] bool endsWith(QStringView s, Qt::CaseSensitivity cs = Qt::CaseSensitive) const noexcept
-    { return QtPrivate::endsWith(*this, s, cs); }
-    [[nodiscard]] bool endsWith(QLatin1StringView s, Qt::CaseSensitivity cs = Qt::CaseSensitive) const noexcept
-    { return QtPrivate::endsWith(*this, s, cs); }
-    [[nodiscard]] constexpr bool endsWith(QChar c) const noexcept
-    { return !isEmpty() && back() == c; }
-    [[nodiscard]] inline bool endsWith(QChar c, Qt::CaseSensitivity cs) const noexcept
-    { return QtPrivate::endsWith(*this, QStringView(&c, 1), cs); }
-
-    [[nodiscard]] qsizetype indexOf(QStringView s, qsizetype from = 0, Qt::CaseSensitivity cs = Qt::CaseSensitive) const noexcept
-    { return QtPrivate::findString(*this, from, s, cs); }
-    [[nodiscard]] qsizetype indexOf(QLatin1StringView s, qsizetype from = 0, Qt::CaseSensitivity cs = Qt::CaseSensitive) const noexcept
-    { return QtPrivate::findString(*this, from, s, cs); }
-    [[nodiscard]] qsizetype indexOf(QChar c, qsizetype from = 0, Qt::CaseSensitivity cs = Qt::CaseSensitive) const noexcept
-    { return QtPrivate::findString(*this, from, QStringView(&c, 1), cs); }
-
-    [[nodiscard]] bool contains(QStringView s, Qt::CaseSensitivity cs = Qt::CaseSensitive) const noexcept
-    { return indexOf(s, 0, cs) != -1; }
-    [[nodiscard]] bool contains(QLatin1StringView s, Qt::CaseSensitivity cs = Qt::CaseSensitive) const noexcept
-    { return indexOf(s, 0, cs) != -1; }
-    [[nodiscard]] inline bool contains(QChar c, Qt::CaseSensitivity cs = Qt::CaseSensitive) const noexcept
-    { return indexOf(QStringView(&c, 1), 0, cs) != -1; }
-
-    [[nodiscard]] qsizetype lastIndexOf(QStringView s, Qt::CaseSensitivity cs = Qt::CaseSensitive) const noexcept
-    { return lastIndexOf(s, size(), cs); }
-    [[nodiscard]] qsizetype lastIndexOf(QStringView s, qsizetype from, Qt::CaseSensitivity cs = Qt::CaseSensitive) const noexcept
-    { return QtPrivate::lastIndexOf(*this, from, s, cs); }
-    [[nodiscard]] qsizetype lastIndexOf(QLatin1StringView s, Qt::CaseSensitivity cs = Qt::CaseSensitive) const noexcept
-    { return lastIndexOf(s, size(), cs); }
-    [[nodiscard]] qsizetype lastIndexOf(QLatin1StringView s, qsizetype from, Qt::CaseSensitivity cs = Qt::CaseSensitive) const noexcept
-    { return QtPrivate::lastIndexOf(*this, from, s, cs); }
-    [[nodiscard]] qsizetype lastIndexOf(QChar c, Qt::CaseSensitivity cs = Qt::CaseSensitive) const noexcept
-    { return lastIndexOf(c, -1, cs); }
-    [[nodiscard]] qsizetype lastIndexOf(QChar c, qsizetype from, Qt::CaseSensitivity cs = Qt::CaseSensitive) const noexcept
-    { return QtPrivate::lastIndexOf(*this, from, QStringView(&c, 1), cs); }
-
-    [[nodiscard]] qsizetype count(QStringView str, Qt::CaseSensitivity cs = Qt::CaseSensitive) const
-    { return QtPrivate::count(*this, str, cs); }
-    [[nodiscard]] qsizetype count(QLatin1StringView str, Qt::CaseSensitivity cs = Qt::CaseSensitive) const
-    { return QtPrivate::count(*this, str, cs); }
-    [[nodiscard]] qsizetype count(QChar ch, Qt::CaseSensitivity cs = Qt::CaseSensitive) const noexcept
-    { return QtPrivate::count(*this, ch, cs); }
-
-    [[nodiscard]] short toShort(bool *ok = nullptr, int base = 10) const
-    { return QtPrivate::toIntegral<short>(QByteArrayView(*this), ok, base); }
-    [[nodiscard]] ushort toUShort(bool *ok = nullptr, int base = 10) const
-    { return QtPrivate::toIntegral<ushort>(QByteArrayView(*this), ok, base); }
-    [[nodiscard]] int toInt(bool *ok = nullptr, int base = 10) const
-    { return QtPrivate::toIntegral<int>(QByteArrayView(*this), ok, base); }
-    [[nodiscard]] uint toUInt(bool *ok = nullptr, int base = 10) const
-    { return QtPrivate::toIntegral<uint>(QByteArrayView(*this), ok, base); }
-    [[nodiscard]] long toLong(bool *ok = nullptr, int base = 10) const
-    { return QtPrivate::toIntegral<long>(QByteArrayView(*this), ok, base); }
-    [[nodiscard]] ulong toULong(bool *ok = nullptr, int base = 10) const
-    { return QtPrivate::toIntegral<ulong>(QByteArrayView(*this), ok, base); }
-    [[nodiscard]] qlonglong toLongLong(bool *ok = nullptr, int base = 10) const
-    { return QtPrivate::toIntegral<qlonglong>(QByteArrayView(*this), ok, base); }
-    [[nodiscard]] qulonglong toULongLong(bool *ok = nullptr, int base = 10) const
-    { return QtPrivate::toIntegral<qulonglong>(QByteArrayView(*this), ok, base); }
-    [[nodiscard]] float toFloat(bool *ok = nullptr) const
-    {
-        const auto r = QtPrivate::toFloat(*this);
-        if (ok)
-            *ok = bool(r);
-        return r.value_or(0.0f);
-    }
-    [[nodiscard]] double toDouble(bool *ok = nullptr) const
-    {
-        const auto r = QtPrivate::toDouble(*this);
-        if (ok)
-            *ok = bool(r);
-        return r.value_or(0.0);
-    }
-
-    using value_type = const char;
-    using reference = value_type&;
-    using const_reference = reference;
-    using iterator = value_type*;
-    using const_iterator = iterator;
-    using difference_type = qsizetype; // violates Container concept requirements
-    using size_type = qsizetype;       // violates Container concept requirements
-
-    constexpr const_iterator begin() const noexcept { return data(); }
-    constexpr const_iterator cbegin() const noexcept { return data(); }
-    constexpr const_iterator end() const noexcept { return data() + size(); }
-    constexpr const_iterator cend() const noexcept { return data() + size(); }
-
-    using reverse_iterator = std::reverse_iterator<iterator>;
-    using const_reverse_iterator = reverse_iterator;
-
-    const_reverse_iterator rbegin() const noexcept { return const_reverse_iterator(end()); }
-    const_reverse_iterator crbegin() const noexcept { return const_reverse_iterator(end()); }
-    const_reverse_iterator rend() const noexcept { return const_reverse_iterator(begin()); }
-    const_reverse_iterator crend() const noexcept { return const_reverse_iterator(begin()); }
-
-    [[nodiscard]] constexpr QLatin1StringView mid(qsizetype pos, qsizetype n = -1) const
-    {
-        using namespace QtPrivate;
-        auto result = QContainerImplHelper::mid(size(), &pos, &n);
-        return result == QContainerImplHelper::Null ? QLatin1StringView()
-                                                    : QLatin1StringView(m_data + pos, n);
-    }
-    [[nodiscard]] constexpr QLatin1StringView left(qsizetype n) const
-    {
-        if (size_t(n) >= size_t(size()))
-            n = size();
-        return {m_data, n};
-    }
-    [[nodiscard]] constexpr QLatin1StringView right(qsizetype n) const
-    {
-        if (size_t(n) >= size_t(size()))
-            n = size();
-        return {m_data + m_size - n, n};
-    }
-
-    [[nodiscard]] constexpr QLatin1StringView sliced(qsizetype pos) const
-    { verify(pos); return {m_data + pos, m_size - pos}; }
-    [[nodiscard]] constexpr QLatin1StringView sliced(qsizetype pos, qsizetype n) const
-    { verify(pos, n); return {m_data + pos, n}; }
-    [[nodiscard]] constexpr QLatin1StringView first(qsizetype n) const
-    { verify(n); return {m_data, n}; }
-    [[nodiscard]] constexpr QLatin1StringView last(qsizetype n) const
-    { verify(n); return {m_data + size() - n, n}; }
-    [[nodiscard]] constexpr QLatin1StringView chopped(qsizetype n) const
-    { verify(n); return {m_data, size() - n}; }
-
-    constexpr void chop(qsizetype n)
-    { verify(n); m_size -= n; }
-    constexpr void truncate(qsizetype n)
-    { verify(n); m_size = n; }
-
-    [[nodiscard]] QLatin1StringView trimmed() const noexcept { return QtPrivate::trimmed(*this); }
-
-    template <typename Needle, typename...Flags>
-    [[nodiscard]] inline constexpr auto tokenize(Needle &&needle, Flags...flags) const
-        noexcept(noexcept(qTokenize(std::declval<const QLatin1StringView &>(),
-                                    std::forward<Needle>(needle), flags...)))
-            -> decltype(qTokenize(*this, std::forward<Needle>(needle), flags...))
-    { return qTokenize(*this, std::forward<Needle>(needle), flags...); }
-
-    friend inline bool operator==(QLatin1StringView s1, QLatin1StringView s2) noexcept
-    { return QByteArrayView(s1) == QByteArrayView(s2); }
-    friend inline bool operator!=(QLatin1StringView s1, QLatin1StringView s2) noexcept
-    { return !(s1 == s2); }
-    friend inline bool operator<(QLatin1StringView s1, QLatin1StringView s2) noexcept
-    {
-        const qsizetype len = qMin(s1.size(), s2.size());
-        const int r = len ? memcmp(s1.latin1(), s2.latin1(), len) : 0;
-        return r < 0 || (r == 0 && s1.size() < s2.size());
-    }
-    friend inline bool operator>(QLatin1StringView s1, QLatin1StringView s2) noexcept
-    { return s2 < s1; }
-    friend inline bool operator<=(QLatin1StringView s1, QLatin1StringView s2) noexcept
-    { return !(s1 > s2); }
-    friend inline bool operator>=(QLatin1StringView s1, QLatin1StringView s2) noexcept
-    { return !(s1 < s2); }
-
-    // QChar <> QLatin1StringView
-    friend inline bool operator==(QChar lhs, QLatin1StringView rhs) noexcept { return rhs.size() == 1 && lhs == rhs.front(); }
-    friend inline bool operator< (QChar lhs, QLatin1StringView rhs) noexcept { return compare_helper(&lhs, 1, rhs) < 0; }
-    friend inline bool operator> (QChar lhs, QLatin1StringView rhs) noexcept { return compare_helper(&lhs, 1, rhs) > 0; }
-    friend inline bool operator!=(QChar lhs, QLatin1StringView rhs) noexcept { return !(lhs == rhs); }
-    friend inline bool operator<=(QChar lhs, QLatin1StringView rhs) noexcept { return !(lhs >  rhs); }
-    friend inline bool operator>=(QChar lhs, QLatin1StringView rhs) noexcept { return !(lhs <  rhs); }
-
-    friend inline bool operator==(QLatin1StringView lhs, QChar rhs) noexcept { return   rhs == lhs; }
-    friend inline bool operator!=(QLatin1StringView lhs, QChar rhs) noexcept { return !(rhs == lhs); }
-    friend inline bool operator< (QLatin1StringView lhs, QChar rhs) noexcept { return   rhs >  lhs; }
-    friend inline bool operator> (QLatin1StringView lhs, QChar rhs) noexcept { return   rhs <  lhs; }
-    friend inline bool operator<=(QLatin1StringView lhs, QChar rhs) noexcept { return !(rhs <  lhs); }
-    friend inline bool operator>=(QLatin1StringView lhs, QChar rhs) noexcept { return !(rhs >  lhs); }
-
-    // QStringView <> QLatin1StringView
-    friend inline bool operator==(QStringView lhs, QLatin1StringView rhs) noexcept
-    { return lhs.size() == rhs.size() && QtPrivate::equalStrings(lhs, rhs); }
-    friend inline bool operator!=(QStringView lhs, QLatin1StringView rhs) noexcept { return !(lhs == rhs); }
-    friend inline bool operator< (QStringView lhs, QLatin1StringView rhs) noexcept { return QtPrivate::compareStrings(lhs, rhs) <  0; }
-    friend inline bool operator<=(QStringView lhs, QLatin1StringView rhs) noexcept { return QtPrivate::compareStrings(lhs, rhs) <= 0; }
-    friend inline bool operator> (QStringView lhs, QLatin1StringView rhs) noexcept { return QtPrivate::compareStrings(lhs, rhs) >  0; }
-    friend inline bool operator>=(QStringView lhs, QLatin1StringView rhs) noexcept { return QtPrivate::compareStrings(lhs, rhs) >= 0; }
-
-    friend inline bool operator==(QLatin1StringView lhs, QStringView rhs) noexcept
-    { return lhs.size() == rhs.size() && QtPrivate::equalStrings(lhs, rhs); }
-    friend inline bool operator!=(QLatin1StringView lhs, QStringView rhs) noexcept { return !(lhs == rhs); }
-    friend inline bool operator< (QLatin1StringView lhs, QStringView rhs) noexcept { return QtPrivate::compareStrings(lhs, rhs) <  0; }
-    friend inline bool operator<=(QLatin1StringView lhs, QStringView rhs) noexcept { return QtPrivate::compareStrings(lhs, rhs) <= 0; }
-    friend inline bool operator> (QLatin1StringView lhs, QStringView rhs) noexcept { return QtPrivate::compareStrings(lhs, rhs) >  0; }
-    friend inline bool operator>=(QLatin1StringView lhs, QStringView rhs) noexcept { return QtPrivate::compareStrings(lhs, rhs) >= 0; }
-
-
-#if !defined(QT_NO_CAST_FROM_ASCII) && !defined(QT_RESTRICTED_CAST_FROM_ASCII)
-    QT_ASCII_CAST_WARN inline bool operator==(const char *s) const;
-    QT_ASCII_CAST_WARN inline bool operator!=(const char *s) const;
-    QT_ASCII_CAST_WARN inline bool operator<(const char *s) const;
-    QT_ASCII_CAST_WARN inline bool operator>(const char *s) const;
-    QT_ASCII_CAST_WARN inline bool operator<=(const char *s) const;
-    QT_ASCII_CAST_WARN inline bool operator>=(const char *s) const;
-
-    QT_ASCII_CAST_WARN inline bool operator==(const QByteArray &s) const;
-    QT_ASCII_CAST_WARN inline bool operator!=(const QByteArray &s) const;
-    QT_ASCII_CAST_WARN inline bool operator<(const QByteArray &s) const;
-    QT_ASCII_CAST_WARN inline bool operator>(const QByteArray &s) const;
-    QT_ASCII_CAST_WARN inline bool operator<=(const QByteArray &s) const;
-    QT_ASCII_CAST_WARN inline bool operator>=(const QByteArray &s) const;
-
-    QT_ASCII_CAST_WARN friend bool operator==(const char *s1, QLatin1StringView s2) { return compare_helper(s2, s1) == 0; }
-    QT_ASCII_CAST_WARN friend bool operator!=(const char *s1, QLatin1StringView s2) { return compare_helper(s2, s1) != 0; }
-    QT_ASCII_CAST_WARN friend bool operator< (const char *s1, QLatin1StringView s2) { return compare_helper(s2, s1) >  0; }
-    QT_ASCII_CAST_WARN friend bool operator> (const char *s1, QLatin1StringView s2) { return compare_helper(s2, s1) <  0; }
-    QT_ASCII_CAST_WARN friend bool operator<=(const char *s1, QLatin1StringView s2) { return compare_helper(s2, s1) >= 0; }
-    QT_ASCII_CAST_WARN friend bool operator>=(const char *s1, QLatin1StringView s2) { return compare_helper(s2, s1) <= 0; }
-#endif // !defined(QT_NO_CAST_FROM_ASCII) && !defined(QT_RESTRICTED_CAST_FROM_ASCII)
-
-private:
-#if !defined(QT_NO_CAST_FROM_ASCII) && !defined(QT_RESTRICTED_CAST_FROM_ASCII)
-    static inline int compare_helper(const QLatin1StringView &s1, const char *s2);
-#endif
-    Q_ALWAYS_INLINE constexpr void verify(qsizetype pos, qsizetype n = 0) const
-    {
-        Q_ASSERT(pos >= 0);
-        Q_ASSERT(pos <= size());
-        Q_ASSERT(n >= 0);
-        Q_ASSERT(n <= size() - pos);
-    }
-    Q_CORE_EXPORT static int compare_helper(const QChar *data1, qsizetype length1,
-                                            QLatin1StringView s2,
-                                            Qt::CaseSensitivity cs = Qt::CaseSensitive) noexcept;
-#if QT_VERSION >= QT_VERSION_CHECK(7, 0, 0) || defined(QT_BOOTSTRAPPED)
-    const char *m_data = nullptr;
-    qsizetype m_size = 0;
-#else
-    qsizetype m_size;
-    const char *m_data;
-#endif
-};
-#ifdef Q_L1S_VIEW_IS_PRIMARY
-Q_DECLARE_TYPEINFO(QLatin1StringView, Q_RELOCATABLE_TYPE);
-#else
-Q_DECLARE_TYPEINFO(QLatin1String, Q_RELOCATABLE_TYPE);
-#endif
-
 // Qt 4.x compatibility
 
 //
@@ -404,7 +84,6 @@ qsizetype QStringView::lastIndexOf(QLatin1StringView s, qsizetype from, Qt::Case
 qsizetype QStringView::count(QLatin1StringView s, Qt::CaseSensitivity cs) const
 { return QtPrivate::count(*this, s, cs); }
 
-
 //
 // QAnyStringView members that require QLatin1StringView
 //
@@ -418,6 +97,7 @@ constexpr QLatin1StringView QAnyStringView::asLatin1StringView() const
     return {m_data_utf8, size()};
 }
 
+
 template <typename Visitor>
 constexpr decltype(auto) QAnyStringView::visit(Visitor &&v) const
 {
@@ -446,6 +126,36 @@ constexpr QChar QAnyStringView::back() const
 class Q_CORE_EXPORT QString
 {
     typedef QTypedArrayData<char16_t> Data;
+
+    friend class ::tst_QString;
+
+    template <typename Iterator>
+    static constexpr bool is_contiguous_iterator_v =
+        // Can't use contiguous_iterator_tag here, as STL impls can't agree on feature macro.
+        // To avoid differences in C++20 and C++17 builds, treat only pointers as contiguous
+        // for now:
+        // std::contiguous_iterator<Iterator>;
+        std::is_pointer_v<Iterator>;
+
+    template <typename Char>
+    using is_compatible_char_helper = std::disjunction<
+            QtPrivate::IsCompatibleCharType<Char>,
+            QtPrivate::IsCompatibleChar32Type<Char>,
+            std::is_same<Char, QLatin1Char> // special case
+        >;
+
+    template <typename Iterator>
+    static constexpr bool is_compatible_iterator_v = std::conjunction_v<
+            std::is_convertible<
+                typename std::iterator_traits<Iterator>::iterator_category,
+                std::input_iterator_tag
+            >,
+            is_compatible_char_helper<typename std::iterator_traits<Iterator>::value_type>
+        >;
+
+    template <typename Iterator>
+    using if_compatible_iterator = std::enable_if_t<is_compatible_iterator_v<Iterator>, bool>;
+
 public:
     typedef QStringPrivate DataPointer;
 
@@ -469,13 +179,13 @@ public:
         = default;
     QT_MOVE_ASSIGNMENT_OPERATOR_IMPL_VIA_PURE_SWAP(QString)
     void swap(QString &other) noexcept { d.swap(other.d); }
-    inline qsizetype size() const { return d.size; }
+    inline qsizetype size() const noexcept { return d.size; }
 #if QT_DEPRECATED_SINCE(6, 4)
     QT_DEPRECATED_VERSION_X_6_4("Use size() or length() instead.")
     inline qsizetype count() const { return d.size; }
 #endif
-    inline qsizetype length() const { return d.size; }
-    inline bool isEmpty() const;
+    inline qsizetype length() const noexcept { return d.size; }
+    inline bool isEmpty() const noexcept { return d.size == 0; }
     void resize(qsizetype size);
     void resize(qsizetype size, QChar fillChar);
 
@@ -705,6 +415,49 @@ public:
     inline QString &prepend(QLatin1StringView s) { return insert(0, s); }
     QString &prepend(QUtf8StringView s) { return insert(0, s); }
 
+    QString &assign(QAnyStringView s);
+    inline QString &assign(qsizetype n, QChar c)
+    {
+        Q_ASSERT(n >= 0);
+        return fill(c, n);
+    }
+    template <typename InputIterator, if_compatible_iterator<InputIterator> = true>
+    QString &assign(InputIterator first, InputIterator last)
+    {
+        using V = typename std::iterator_traits<InputIterator>::value_type;
+        constexpr bool IsL1C = std::is_same_v<std::remove_cv_t<V>, QLatin1Char>;
+        constexpr bool IsFwdIt = std::is_convertible_v<
+                typename std::iterator_traits<InputIterator>::iterator_category,
+                std::forward_iterator_tag
+            >;
+
+        if constexpr (is_contiguous_iterator_v<InputIterator>) {
+            const auto p = q20::to_address(first);
+            const auto len = qsizetype(last - first);
+            if constexpr (IsL1C)
+                return assign(QLatin1StringView(reinterpret_cast<const char*>(p), len));
+            else if constexpr (sizeof(V) == 4)
+                return assign_helper(p, len);
+            else
+                return assign(QAnyStringView(p, len));
+        } else if constexpr (sizeof(V) == 4) { // non-contiguous iterator, feed data piecemeal
+            resize(0);
+            if constexpr (IsFwdIt) {
+                const qsizetype requiredCapacity = 2 * std::distance(first, last);
+                reserve(requiredCapacity);
+            }
+            while (first != last) {
+                append(QChar::fromUcs4(*first));
+                ++first;
+            }
+            return *this;
+        } else {
+            d.assign(first, last, [](QChar ch) -> char16_t { return ch.unicode(); });
+            d.data()[d.size] = u'\0';
+            return *this;
+        }
+    }
+
     inline QString &operator+=(QChar c) { return append(c); }
 
     inline QString &operator+=(const QString &s) { return append(s); }
@@ -736,9 +489,10 @@ public:
     template <typename Predicate>
     QString &removeIf(Predicate pred)
     {
-        QtPrivate::sequential_erase_if(*this, pred);
+        removeIf_helper(pred);
         return *this;
     }
+
     QString &replace(qsizetype i, qsizetype len, QChar after);
     QString &replace(qsizetype i, qsizetype len, const QChar *s, qsizetype slen);
     QString &replace(qsizetype i, qsizetype len, const QString &after);
@@ -1136,6 +890,11 @@ public:
     NSString *toNSString() const Q_DECL_NS_RETURNS_AUTORELEASED;
 #endif
 
+#if defined(Q_OS_WASM) || defined(Q_QDOC)
+    static QString fromEcmaString(emscripten::val jsString);
+    emscripten::val toEcmaString() const;
+#endif
+
     inline bool isNull() const { return d->isNull(); }
 
 
@@ -1162,6 +921,8 @@ private:
 
     void reallocData(qsizetype alloc, QArrayData::AllocationOption option);
     void reallocGrowData(qsizetype n);
+    // ### remove once QAnyStringView supports UTF-32:
+    QString &assign_helper(const char32_t *data, qsizetype len);
     static int compare_helper(const QChar *data1, qsizetype length1,
                               const QChar *data2, qsizetype length2,
                               Qt::CaseSensitivity cs = Qt::CaseSensitive) noexcept;
@@ -1184,13 +945,26 @@ private:
     static QByteArray toLatin1_helper_inplace(QString &);
     static QByteArray toUtf8_helper(const QString &);
     static QByteArray toLocal8Bit_helper(const QChar *data, qsizetype size);
-    static qsizetype toUcs4_helper(const ushort *uc, qsizetype length, uint *out); // ### Qt 7 char16_t
+#if QT_CORE_REMOVED_SINCE(6, 6)
+    static qsizetype toUcs4_helper(const ushort *uc, qsizetype length, uint *out);
+#endif
+    static qsizetype toUcs4_helper(const char16_t *uc, qsizetype length, char32_t *out);
     static qlonglong toIntegral_helper(QStringView string, bool *ok, int base);
     static qulonglong toIntegral_helper(QStringView string, bool *ok, uint base);
-    void replace_helper(size_t *indices, qsizetype nIndices, qsizetype blen, const QChar *after, qsizetype alen);
+    template <typename Predicate>
+    qsizetype removeIf_helper(Predicate pred)
+    {
+        const qsizetype result = d->eraseIf(pred);
+        if (result > 0)
+            d.data()[d.size] = u'\0';
+        return result;
+    }
+
     friend class QStringView;
     friend class QByteArray;
     friend struct QAbstractConcatenable;
+    template <typename T> friend qsizetype erase(QString &s, const T &t);
+    template <typename Predicate> friend qsizetype erase_if(QString &s, Predicate pred);
 
     template <typename T> static
     T toIntegral_helper(QStringView string, bool *ok, int base)
@@ -1306,8 +1080,6 @@ const QChar QString::at(qsizetype i) const
 { Q_ASSERT(size_t(i) < size_t(size())); return QChar(d.data()[i]); }
 const QChar QString::operator[](qsizetype i) const
 { Q_ASSERT(size_t(i) < size_t(size())); return QChar(d.data()[i]); }
-bool QString::isEmpty() const
-{ return d.size == 0; }
 const QChar *QString::unicode() const
 { return data(); }
 const QChar *QString::data() const
@@ -1381,8 +1153,7 @@ qsizetype QStringView::toWCharArray(wchar_t *array) const
             memcpy(array, src, sizeof(QChar) * size());
         return size();
     } else {
-        return QString::toUcs4_helper(reinterpret_cast<const ushort *>(data()), size(),
-                                      reinterpret_cast<uint *>(array));
+        return QString::toUcs4_helper(utf16(), size(), reinterpret_cast<char32_t *>(array));
     }
 }
 
@@ -1460,6 +1231,9 @@ bool QString::operator<=(const char *s) const
 bool QString::operator>=(const char *s) const
 { return QString::compare_helper(constData(), size(), s, -1) >= 0; }
 
+//
+// QLatin1StringView inline members that require QString:
+//
 QT_ASCII_CAST_WARN bool QLatin1StringView::operator==(const char *s) const
 { return QString::fromUtf8(s) == *this; }
 QT_ASCII_CAST_WARN bool QLatin1StringView::operator!=(const char *s) const
@@ -1486,11 +1260,6 @@ QT_ASCII_CAST_WARN bool QLatin1StringView::operator<=(const QByteArray &s) const
 QT_ASCII_CAST_WARN bool QLatin1StringView::operator>=(const QByteArray &s) const
 { return QString::fromUtf8(s) <= *this; }
 
-int QLatin1StringView::compare_helper(const QLatin1StringView &s1, const char *s2)
-{
-    return QString::compare(s1, QString::fromUtf8(s2));
-}
-
 QT_ASCII_CAST_WARN bool QString::operator==(const QByteArray &s) const
 { return QString::compare_helper(constData(), size(), s.constData(), s.size()) == 0; }
 QT_ASCII_CAST_WARN bool QString::operator!=(const QByteArray &s) const
@@ -1574,8 +1343,8 @@ QString QString::fromStdU32String(const std::u32string &s)
 std::u32string QString::toStdU32String() const
 {
     std::u32string u32str(size(), char32_t(0));
-    qsizetype len = toUcs4_helper(reinterpret_cast<const ushort *>(constData()),
-                                  size(), reinterpret_cast<uint*>(&u32str[0]));
+    const qsizetype len = toUcs4_helper(reinterpret_cast<const char16_t *>(data()),
+                                        size(), u32str.data());
     u32str.resize(len);
     return u32str;
 }
@@ -1689,25 +1458,19 @@ QString QLatin1StringView::arg(Args &&...args) const
 template <typename T>
 qsizetype erase(QString &s, const T &t)
 {
-    return QtPrivate::sequential_erase(s, t);
+    return s.removeIf_helper([&t](const auto &e) { return t == e; });
 }
 
 template <typename Predicate>
 qsizetype erase_if(QString &s, Predicate pred)
 {
-    return QtPrivate::sequential_erase_if(s, pred);
+    return s.removeIf_helper(pred);
 }
 
 namespace Qt {
 inline namespace Literals {
 inline namespace StringLiterals {
-
-constexpr inline QLatin1StringView operator"" _L1(const char *str, size_t size) noexcept
-{
-    return {str, qsizetype(size)};
-}
-
-inline QString operator"" _s(const char16_t *str, size_t size) noexcept
+inline QString operator""_s(const char16_t *str, size_t size) noexcept
 {
     return QString(QStringPrivate(nullptr, const_cast<char16_t *>(str), qsizetype(size)));
 }
@@ -1720,7 +1483,7 @@ inline namespace QtLiterals {
 #if QT_DEPRECATED_SINCE(6, 8)
 
 QT_DEPRECATED_VERSION_X_6_8("Use _s from Qt::StringLiterals namespace instead.")
-inline QString operator"" _qs(const char16_t *str, size_t size) noexcept
+inline QString operator""_qs(const char16_t *str, size_t size) noexcept
 {
     return Qt::StringLiterals::operator""_s(str, size);
 }
diff --git a/src/corelib/text/qstringbuilder.cpp b/src/corelib/text/qstringbuilder.cpp
index d4ab8db0..738ce833 100644
--- a/src/corelib/text/qstringbuilder.cpp
+++ b/src/corelib/text/qstringbuilder.cpp
@@ -57,36 +57,57 @@ QT_BEGIN_NAMESPACE
     if there are three or more of them, and performs equally well in other
     cases.
 
+    \note Defining \c QT_USE_QSTRINGBUILDER at build time (this is the
+    default when building Qt libraries and tools), will make using \c {'+'}
+    when concatenating strings work the same way as \c operator%().
+
     \sa QLatin1StringView, QString
 */
 
-/*! \fn template <typename A, typename B> QStringBuilder<A, B>::QStringBuilder(const A &a, const B &b)
-  Constructs a QStringBuilder from \a a and \a b.
+/*!
+    \internal
+    \fn template <typename A, typename B> QStringBuilder<A, B>::QStringBuilder(const A &a, const B &b)
+
+    Constructs a QStringBuilder from \a a and \a b.
  */
 
-/* \fn template <typename A, typename B> QStringBuilder<A, B>::operator%(const A &a, const B &b)
+/*!
+    \internal
+    \fn template <typename A, typename B> QStringBuilder<A, B>::operator%(const A &a, const B &b)
 
     Returns a \c QStringBuilder object that is converted to a QString object
     when assigned to a variable of QString type or passed to a function that
     takes a QString parameter.
 
-    This function is usable with arguments of type \c QString,
-    \c QLatin1StringView,
-    \c QChar, \c QLatin1Char, and \c char.
+    This function is usable with arguments of any of the following types:
+    \list
+    \li \c QAnyStringView,
+    \li \c QString, \c QStringView
+    \li \c QByteArray, \c QByteArrayView, \c QLatin1StringView
+    \li \c QChar, \c QLatin1Char, \c char, (since 5.10:) \c char16_t
+    \li (since 5.10:) \c{const char16_t[]} (\c{u"foo"}),
+    \endlist
 */
 
-/* \fn template <typename A, typename B> QByteArray QStringBuilder<A, B>::toLatin1() const
-  Returns a Latin-1 representation of the string as a QByteArray.  The
-  returned byte array is undefined if the string contains non-Latin1
-  characters.
- */
-/* \fn template <typename A, typename B> QByteArray QStringBuilder<A, B>::toUtf8() const
-  Returns a UTF-8 representation of the string as a QByteArray.
- */
-
-
 /*!
     \internal
+    \fn template <typename A, typename B> QByteArray QStringBuilder<A, B>::toLatin1() const
+
+    Returns a Latin-1 representation of the string as a QByteArray. It
+    is undefined behavior if the string contains non-Latin1 characters.
+ */
+
+/*!
+    \internal
+    \fn template <typename A, typename B> QByteArray QStringBuilder<A, B>::toUtf8() const
+
+    Returns a UTF-8 representation of the string as a QByteArray.
+ */
+
+/*!
+    \internal
+    Converts the UTF-8 string viewed by \a in to UTF-16 and writes the result
+    to the buffer starting at \a out.
  */
 void QAbstractConcatenable::convertFromUtf8(QByteArrayView in, QChar *&out) noexcept
 {
diff --git a/src/corelib/text/qstringbuilder.h b/src/corelib/text/qstringbuilder.h
index d03dd992..30cf46de 100644
--- a/src/corelib/text/qstringbuilder.h
+++ b/src/corelib/text/qstringbuilder.h
@@ -101,6 +101,9 @@ public:
     const B &b;
 };
 
+// This specialization is here for backwards compatibility: appending
+// two null strings must give back a null string, so we're special
+// casing this one out.
 template <>
 class QStringBuilder <QString, QString> : public QStringBuilderBase<QStringBuilder<QString, QString>, QString>
 {
@@ -118,6 +121,7 @@ class QStringBuilder <QString, QString> : public QStringBuilderBase<QStringBuild
         QStringBuilder &operator=(const QStringBuilder &) = delete;
 };
 
+// Ditto, but see QTBUG-114238
 template <>
 class QStringBuilder <QByteArray, QByteArray> : public QStringBuilderBase<QStringBuilder<QByteArray, QByteArray>, QByteArray>
 {
diff --git a/src/corelib/text/qstringconverter.cpp b/src/corelib/text/qstringconverter.cpp
index 91d38fd0..7f68c511 100644
--- a/src/corelib/text/qstringconverter.cpp
+++ b/src/corelib/text/qstringconverter.cpp
@@ -505,7 +505,6 @@ QByteArray QUtf8::convertFromUnicode(QStringView in, QStringConverterBase::State
 char *QUtf8::convertFromUnicode(char *out, QStringView in, QStringConverter::State *state)
 {
     Q_ASSERT(state);
-    const QChar *uc = in.data();
     qsizetype len = in.size();
     if (!len)
         return out;
@@ -523,7 +522,7 @@ char *QUtf8::convertFromUnicode(char *out, QStringView in, QStringConverter::Sta
     };
 
     uchar *cursor = reinterpret_cast<uchar *>(out);
-    const char16_t *src = reinterpret_cast<const char16_t *>(uc);
+    const char16_t *src = in.utf16();
     const char16_t *const end = src + len;
 
     if (!(state->flags & QStringDecoder::Flag::Stateless)) {
@@ -609,14 +608,14 @@ QString QUtf8::convertToUnicode(QByteArrayView in)
     return result;
 }
 
-/*!
-    \since 5.7
+/*! \internal
+    \since 6.6
     \overload
 
     Converts the UTF-8 sequence of bytes viewed by \a in to a sequence of
-    QChar starting at \a buffer. The buffer is expected to be large enough
-    to hold the result. An upper bound for the size of the buffer is
-    \c in.size() QChars.
+    QChar starting at \a dst in the destination buffer. The buffer is expected
+    to be large enough to hold the result. An upper bound for the size of the
+    buffer is \c in.size() QChars.
 
     If, during decoding, an error occurs, a QChar::ReplacementCharacter is
     written.
@@ -624,11 +623,12 @@ QString QUtf8::convertToUnicode(QByteArrayView in)
     Returns a pointer to one past the last QChar written.
 
     This function never throws.
-*/
 
-QChar *QUtf8::convertToUnicode(QChar *buffer, QByteArrayView in) noexcept
+    For QChar buffers, instead of casting manually, you can use the static
+    QUtf8::convertToUnicode(QChar *, QByteArrayView) directly.
+*/
+char16_t *QUtf8::convertToUnicode(char16_t *dst, QByteArrayView in) noexcept
 {
-    char16_t *dst = reinterpret_cast<char16_t *>(buffer);
     const uchar *const start = reinterpret_cast<const uchar *>(in.data());
     const uchar *src = start;
     const uchar *end = src + in.size();
@@ -651,7 +651,7 @@ QChar *QUtf8::convertToUnicode(QChar *buffer, QByteArrayView in) noexcept
 
             do {
                 uchar b = *src++;
-                int res = QUtf8Functions::fromUtf8<QUtf8BaseTraits>(b, dst, src, end);
+                const qsizetype res = QUtf8Functions::fromUtf8<QUtf8BaseTraits>(b, dst, src, end);
                 if (res < 0) {
                     // decoding error
                     *dst++ = QChar::ReplacementCharacter;
@@ -660,7 +660,7 @@ QChar *QUtf8::convertToUnicode(QChar *buffer, QByteArrayView in) noexcept
         }
     }
 
-    return reinterpret_cast<QChar *>(dst);
+    return dst;
 }
 
 QString QUtf8::convertToUnicode(QByteArrayView in, QStringConverter::State *state)
@@ -681,23 +681,22 @@ QString QUtf8::convertToUnicode(QByteArrayView in, QStringConverter::State *stat
     return result;
 }
 
-QChar *QUtf8::convertToUnicode(QChar *out, QByteArrayView in, QStringConverter::State *state)
+char16_t *QUtf8::convertToUnicode(char16_t *dst, QByteArrayView in, QStringConverter::State *state)
 {
     qsizetype len = in.size();
 
     Q_ASSERT(state);
     if (!len)
-        return out;
+        return dst;
 
 
     char16_t replacement = QChar::ReplacementCharacter;
     if (state->flags & QStringConverter::Flag::ConvertInvalidToNull)
         replacement = QChar::Null;
 
-    int res;
+    qsizetype res;
     uchar ch = 0;
 
-    char16_t *dst = reinterpret_cast<char16_t *>(out);
     const uchar *src = reinterpret_cast<const uchar *>(in.data());
     const uchar *end = src + len;
 
@@ -725,7 +724,7 @@ QChar *QUtf8::convertToUnicode(QChar *out, QByteArrayView in, QStringConverter::
                 // copy to our state and return
                 state->remainingChars = remainingCharsCount + newCharsToCopy;
                 memcpy(&state->state_data[0], remainingCharsData, state->remainingChars);
-                return out;
+                return dst;
             } else if (!headerdone) {
                 // eat the UTF-8 BOM
                 if (dst[-1] == 0xfeff)
@@ -781,7 +780,7 @@ QChar *QUtf8::convertToUnicode(QChar *out, QByteArrayView in, QStringConverter::
         state->remainingChars = 0;
     }
 
-    return reinterpret_cast<QChar *>(dst);
+    return dst;
 }
 
 struct QUtf8NoOutputTraits : public QUtf8BaseTraitsNoAscii
@@ -811,7 +810,7 @@ QUtf8::ValidUtf8Result QUtf8::isValidUtf8(QByteArrayView in)
 
             isValidAscii = false;
             QUtf8NoOutputTraits::NoOutput output;
-            int res = QUtf8Functions::fromUtf8<QUtf8NoOutputTraits>(b, output, src, end);
+            const qsizetype res = QUtf8Functions::fromUtf8<QUtf8NoOutputTraits>(b, output, src, end);
             if (res < 0) {
                 // decoding error
                 return { false, false };
@@ -838,7 +837,7 @@ int QUtf8::compareUtf8(QByteArrayView utf8, QStringView utf16, Qt::CaseSensitivi
 
             if (uc1 >= 0x80) {
                 char32_t *output = &uc1;
-                int res = QUtf8Functions::fromUtf8<QUtf8BaseTraitsNoAscii>(uc1, output, src1, end1);
+                qsizetype res = QUtf8Functions::fromUtf8<QUtf8BaseTraitsNoAscii>(uc1, output, src1, end1);
                 if (res < 0) {
                     // decoding error
                     uc1 = QChar::ReplacementCharacter;
@@ -873,7 +872,7 @@ int QUtf8::compareUtf8(QByteArrayView utf8, QLatin1StringView s, Qt::CaseSensiti
     while (src1 < end1 && src2 < end2) {
         uchar b = *src1++;
         char32_t *output = &uc1;
-        int res = QUtf8Functions::fromUtf8<QUtf8BaseTraits>(b, output, src1, end1);
+        const qsizetype res = QUtf8Functions::fromUtf8<QUtf8BaseTraits>(b, output, src1, end1);
         if (res < 0) {
             // decoding error
             uc1 = QChar::ReplacementCharacter;
@@ -913,7 +912,7 @@ int QUtf8::compareUtf8(QByteArrayView lhs, QByteArrayView rhs, Qt::CaseSensitivi
     while (src1 < end1 && src2 < end2) {
         uchar b = *src1++;
         char32_t *output = &uc1;
-        int res = QUtf8Functions::fromUtf8<QUtf8BaseTraits>(b, output, src1, end1);
+        qsizetype res = QUtf8Functions::fromUtf8<QUtf8BaseTraits>(b, output, src1, end1);
         if (res < 0) {
             // decoding error
             uc1 = QChar::ReplacementCharacter;
@@ -1523,19 +1522,7 @@ static char *toUtf32LE(char *out, QStringView in, QStringConverter::State *state
     return QUtf32::convertFromUnicode(out, in, state, LittleEndianness);
 }
 
-void qt_from_latin1(char16_t *dst, const char *str, size_t size) noexcept;
-
-static QChar *fromLatin1(QChar *out, QByteArrayView in, QStringConverter::State *state)
-{
-    Q_ASSERT(state);
-    Q_UNUSED(state);
-
-    qt_from_latin1(reinterpret_cast<char16_t *>(out), in.data(), size_t(in.size()));
-    return out + in.size();
-}
-
-
-static char *toLatin1(char *out, QStringView in, QStringConverter::State *state)
+char *QLatin1::convertFromUnicode(char *out, QStringView in, QStringConverter::State *state) noexcept
 {
     Q_ASSERT(state);
     if (state->flags & QStringConverter::Flag::Stateless) // temporary
@@ -1721,7 +1708,7 @@ const QStringConverter::Interface QStringConverter::encodingInterfaces[QStringCo
     { "UTF-32", fromUtf32, fromUtf32Len, toUtf32, toUtf32Len },
     { "UTF-32LE", fromUtf32LE, fromUtf32Len, toUtf32LE, toUtf32Len },
     { "UTF-32BE", fromUtf32BE, fromUtf32Len, toUtf32BE, toUtf32Len },
-    { "ISO-8859-1", fromLatin1, fromLatin1Len, toLatin1, toLatin1Len },
+    { "ISO-8859-1", QLatin1::convertToUnicode, fromLatin1Len, QLatin1::convertFromUnicode, toLatin1Len },
     { "Locale", fromLocal8Bit, fromUtf8Len, toLocal8Bit, toUtf8Len }
 };
 
@@ -2387,4 +2374,10 @@ const char *QStringConverter::nameForEncoding(QStringConverter::Encoding e)
     \sa requiredSpace
 */
 
+/*!
+    \fn char16_t *QStringDecoder::appendToBuffer(char16_t *out, QByteArrayView in)
+    \since 6.6
+    \overload
+*/
+
 QT_END_NAMESPACE
diff --git a/src/corelib/text/qstringconverter.h b/src/corelib/text/qstringconverter.h
index a61973ca..e1251696 100644
--- a/src/corelib/text/qstringconverter.h
+++ b/src/corelib/text/qstringconverter.h
@@ -138,6 +138,8 @@ public:
         }
         return iface->toUtf16(out, ba, &state);
     }
+    char16_t *appendToBuffer(char16_t *out, QByteArrayView ba)
+    { return reinterpret_cast<char16_t *>(appendToBuffer(reinterpret_cast<QChar *>(out), ba)); }
 
     Q_CORE_EXPORT static QStringDecoder decoderForHtml(QByteArrayView data);
 
diff --git a/src/corelib/text/qstringconverter_p.h b/src/corelib/text/qstringconverter_p.h
index 95d1eea0..edbe1b54 100644
--- a/src/corelib/text/qstringconverter_p.h
+++ b/src/corelib/text/qstringconverter_p.h
@@ -29,6 +29,32 @@ enum qchar8_t : uchar {};
 using qchar8_t = char8_t;
 #endif
 
+struct QLatin1
+{
+    // Defined in qstring.cpp
+    static char16_t *convertToUnicode(char16_t *dst, QLatin1StringView in) noexcept;
+
+    static QChar *convertToUnicode(QChar *buffer, QLatin1StringView in) noexcept
+    {
+        char16_t *dst = reinterpret_cast<char16_t *>(buffer);
+        dst = convertToUnicode(dst, in);
+        return reinterpret_cast<QChar *>(dst);
+    }
+
+    static QChar *convertToUnicode(QChar *dst, QByteArrayView in,
+                                   [[maybe_unused]] QStringConverterBase::State *state) noexcept
+    {
+        Q_ASSERT(state);
+
+        return convertToUnicode(dst, QLatin1StringView(in.data(), in.size()));
+    }
+
+    static char *convertFromUnicode(char *out, QStringView in, QStringConverter::State *state) noexcept;
+
+    // Defined in qstring.cpp
+    static char *convertFromUnicode(char *out, QStringView in) noexcept;
+};
+
 struct QUtf8BaseTraits
 {
     static const bool isTrusted = false;
@@ -263,10 +289,26 @@ enum DataEndianness
 
 struct QUtf8
 {
-    Q_CORE_EXPORT static QChar *convertToUnicode(QChar *buffer, QByteArrayView in) noexcept;
+    static QChar *convertToUnicode(QChar *buffer, QByteArrayView in) noexcept
+    {
+        char16_t *dst = reinterpret_cast<char16_t *>(buffer);
+        dst = QUtf8::convertToUnicode(dst, in);
+        return reinterpret_cast<QChar *>(dst);
+    }
+
+    Q_CORE_EXPORT static char16_t* convertToUnicode(char16_t *dst, QByteArrayView in) noexcept;
     static QString convertToUnicode(QByteArrayView in);
     Q_CORE_EXPORT static QString convertToUnicode(QByteArrayView in, QStringConverter::State *state);
-    static QChar *convertToUnicode(QChar *out, QByteArrayView in, QStringConverter::State *state);
+
+    static QChar *convertToUnicode(QChar *out, QByteArrayView in, QStringConverter::State *state)
+    {
+        char16_t *buffer = reinterpret_cast<char16_t *>(out);
+        buffer = convertToUnicode(buffer, in, state);
+        return reinterpret_cast<QChar *>(buffer);
+    }
+
+    static char16_t *convertToUnicode(char16_t *dst, QByteArrayView in, QStringConverter::State *state);
+
     Q_CORE_EXPORT static QByteArray convertFromUnicode(QStringView in);
     Q_CORE_EXPORT static QByteArray convertFromUnicode(QStringView in, QStringConverterBase::State *state);
     static char *convertFromUnicode(char *out, QStringView in, QStringConverter::State *state);
diff --git a/src/corelib/text/qstringmatcher.cpp b/src/corelib/text/qstringmatcher.cpp
index 39fd45cf..ac66ec80 100644
--- a/src/corelib/text/qstringmatcher.cpp
+++ b/src/corelib/text/qstringmatcher.cpp
@@ -13,7 +13,7 @@ static void bm_init_skiptable(QStringView needle, uchar *skiptable, Qt::CaseSens
     const char16_t *uc = needle.utf16();
     const qsizetype len =
             cs == Qt::CaseSensitive ? needle.size() : qMin(needle.size(), FoldBufferCapacity);
-    qsizetype l = qMin(len, qsizetype(255));
+    int l = qMin(int(len), 255);
     memset(skiptable, l, 256 * sizeof(uchar));
     uc += len - l;
     if (cs == Qt::CaseSensitive) {
diff --git a/src/corelib/text/qstringview.cpp b/src/corelib/text/qstringview.cpp
index 4e9234fd..302637ee 100644
--- a/src/corelib/text/qstringview.cpp
+++ b/src/corelib/text/qstringview.cpp
@@ -1369,17 +1369,6 @@ or the character \a ch
     \since 6.0
 */
 
-/*!
-    \fn int QLatin1StringView::compare(QUtf8StringView str, Qt::CaseSensitivity cs) const
-    \since 6.5
-
-    Returns an integer that compares to zero as this string view compares to the
-    string view \a str.
-
-    \include qstring.qdocinc {search-comparison-case-sensitivity} {comparison}
-
-    \sa operator==(), operator<(), operator>()
-*/
 
 /*!
     \fn template <typename Needle, typename...Flags> auto QStringView::tokenize(Needle &&sep, Flags...flags) const
diff --git a/src/corelib/thread/qatomic.h b/src/corelib/thread/qatomic.h
index 24f2616e..7fe5ac69 100644
--- a/src/corelib/thread/qatomic.h
+++ b/src/corelib/thread/qatomic.h
@@ -2,8 +2,6 @@
 // Copyright (C) 2016 Intel Corporation.
 // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
 
-#include <QtCore/qglobal.h>
-
 #ifndef QATOMIC_H
 #define QATOMIC_H
 
diff --git a/src/corelib/thread/qbasicatomic.h b/src/corelib/thread/qbasicatomic.h
index 93f9648a..e3fbe558 100644
--- a/src/corelib/thread/qbasicatomic.h
+++ b/src/corelib/thread/qbasicatomic.h
@@ -2,8 +2,6 @@
 // Copyright (C) 2018 Intel Corporation.
 // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
 
-#include <QtCore/qglobal.h>
-
 #ifndef QBASICATOMIC_H
 #define QBASICATOMIC_H
 
@@ -30,7 +28,7 @@ public:
     typedef T Type;
     typedef QAtomicOps<T> Ops;
     // static check that this is a valid integer
-    static_assert(QTypeInfo<T>::isIntegral, "template parameter is not an integral type");
+    static_assert(std::is_integral_v<T>, "template parameter is not an integral type");
     static_assert(QAtomicOpsSupport<sizeof(T)>::IsSupported, "template parameter is an integral of a size not supported on this platform");
 
     typename Ops::Type _q_value;
diff --git a/src/corelib/thread/qfuture.h b/src/corelib/thread/qfuture.h
index 34fb8a03..572c8054 100644
--- a/src/corelib/thread/qfuture.h
+++ b/src/corelib/thread/qfuture.h
@@ -522,6 +522,19 @@ QFuture<std::variant<std::decay_t<Futures>...>> whenAny(Futures &&... futures);
 
 #endif // Q_QDOC
 
+#if QT_DEPRECATED_SINCE(6, 10)
+#if defined(Q_QDOC)
+static QFuture<void> makeReadyFuture()
+#else
+template<typename T = void>
+QT_DEPRECATED_VERSION_X(6, 10, "Use makeReadyVoidFuture() instead")
+static QFuture<T> makeReadyFuture()
+#endif
+{
+    return makeReadyVoidFuture();
+}
+#endif // QT_DEPRECATED_SINCE(6, 10)
+
 } // namespace QtFuture
 
 Q_DECLARE_SEQUENTIAL_ITERATOR(Future)
diff --git a/src/corelib/thread/qfuture.qdoc b/src/corelib/thread/qfuture.qdoc
index 55a85b3a..2535d621 100644
--- a/src/corelib/thread/qfuture.qdoc
+++ b/src/corelib/thread/qfuture.qdoc
@@ -118,7 +118,8 @@
     combine several futures and track when the last or first of them completes.
 
     A ready QFuture object with a value or a QFuture object holding exception can
-    be created using convenience functions QtFuture::makeReadyFuture() and
+    be created using convenience functions QtFuture::makeReadyVoidFuture(),
+    QtFuture::makeReadyValueFuture(), QtFuture::makeReadyRangeFuture(), and
     QtFuture::makeExceptionalFuture().
 
     \note Some APIs (see \l {QFuture::then()} or various QtConcurrent method
@@ -130,7 +131,8 @@
     \note To start a computation and store results in a QFuture, use QPromise or
     one of the APIs in the \l {Qt Concurrent} framework.
 
-    \sa QPromise, QtFuture::connect(), QtFuture::makeReadyFuture(),
+    \sa QPromise, QtFuture::connect(), QtFuture::makeReadyVoidFuture(),
+    QtFuture::makeReadyValueFuture(), QtFuture::makeReadyRangeFuture(),
     QtFuture::makeExceptionalFuture(), QFutureWatcher, {Qt Concurrent}
 */
 
@@ -977,6 +979,12 @@
 
     \since 6.1
     \overload
+    \deprecated [6.10] Use makeReadyValueFuture() instead
+
+    The QtFuture::makeReadyFuture() method should be avoided because it has an
+    inconsistent set of overloads. It will be deprecated in future Qt releases.
+    Use QtFuture::makeReadyVoidFuture(), QtFuture::makeReadyValueFuture() or
+    QtFuture::makeReadyRangeFuture() instead.
 
     Creates and returns a QFuture which already has a result \a value.
     The returned QFuture has a type of std::decay_t<T>, where T is not void.
@@ -987,13 +995,21 @@
     const int result = *f.takeResult(); // result == 42
     \endcode
 
-    \sa QFuture, QtFuture::makeExceptionalFuture()
+    \sa QFuture, QtFuture::makeReadyVoidFuture(),
+    QtFuture::makeReadyValueFuture(), QtFuture::makeReadyRangeFuture(),
+    QtFuture::makeExceptionalFuture()
 */
 
 /*! \fn QFuture<void> QtFuture::makeReadyFuture()
 
     \since 6.1
     \overload
+    \deprecated [6.10] Use makeReadyVoidFuture() instead
+
+    The QtFuture::makeReadyFuture() method should be avoided because it has an
+    inconsistent set of overloads. It will be deprecated in future Qt releases.
+    Use QtFuture::makeReadyVoidFuture(), QtFuture::makeReadyValueFuture() or
+    QtFuture::makeReadyRangeFuture() instead.
 
     Creates and returns a void QFuture. Such QFuture can't store any result.
     One can use it to query the state of the computation.
@@ -1008,13 +1024,21 @@
     \endcode
 
     \sa QFuture, QFuture::isStarted(), QFuture::isRunning(),
-    QFuture::isFinished(), QtFuture::makeExceptionalFuture()
+    QFuture::isFinished(), QtFuture::makeReadyVoidFuture(),
+    QtFuture::makeReadyValueFuture(), QtFuture::makeReadyRangeFuture(),
+    QtFuture::makeExceptionalFuture()
 */
 
 /*! \fn template<typename T> static QFuture<T> QtFuture::makeReadyFuture(const QList<T> &values)
 
     \since 6.1
     \overload
+    \deprecated [6.10] Use makeReadyRangeFuture() instead
+
+    The QtFuture::makeReadyFuture() method should be avoided because it has an
+    inconsistent set of overloads. It will be deprecated in future Qt releases.
+    Use QtFuture::makeReadyVoidFuture(), QtFuture::makeReadyValueFuture() or
+    QtFuture::makeReadyRangeFuture() instead.
 
     Creates and returns a QFuture which already has multiple results set from \a values.
 
@@ -1026,7 +1050,38 @@
     const auto results = f.results(); // results == { 1, 2, 3 }
     \endcode
 
-    \sa QFuture, QtFuture::makeExceptionalFuture()
+    \sa QFuture, QtFuture::makeReadyVoidFuture(),
+    QtFuture::makeReadyValueFuture(), QtFuture::makeReadyRangeFuture(),
+    QtFuture::makeExceptionalFuture()
+*/
+
+/*! \fn template<typename T> static QFuture<std::decay_t<T>> QtFuture::makeReadyValueFuture(T &&value)
+
+    \since 6.6
+
+    Creates and returns a QFuture which already has a result \a value.
+    The returned QFuture has a type of std::decay_t<T>, where T is not void.
+    The returned QFuture will already be in the finished state.
+
+    \snippet code/src_corelib_thread_qfuture.cpp 35
+
+    \sa QFuture, QtFuture::makeReadyRangeFuture(),
+    QtFuture::makeReadyVoidFuture(), QtFuture::makeExceptionalFuture()
+*/
+
+/*! \fn QFuture<void> QtFuture::makeReadyVoidFuture()
+
+    \since 6.6
+
+    Creates and returns a void QFuture. Such QFuture can't store any result.
+    One can use it to query the state of the computation.
+    The returned QFuture will already be in the finished state.
+
+    \snippet code/src_corelib_thread_qfuture.cpp 36
+
+    \sa QFuture, QFuture::isStarted(), QFuture::isRunning(),
+    QFuture::isFinished(), QtFuture::makeReadyValueFuture(),
+    QtFuture::makeReadyRangeFuture(), QtFuture::makeExceptionalFuture()
 */
 
 /*! \fn template<typename T> static QFuture<T> QtFuture::makeExceptionalFuture(const QException &exception)
@@ -1046,7 +1101,8 @@
     }
     \endcode
 
-    \sa QFuture, QException, QtFuture::makeReadyFuture()
+    \sa QFuture, QException, QtFuture::makeReadyVoidFuture(),
+    QtFuture::makeReadyValueFuture()
 */
 
 /*! \fn template<typename T> static QFuture<T> QtFuture::makeExceptionalFuture(std::exception_ptr exception)
@@ -1071,7 +1127,44 @@
     }
     \endcode
 
-    \sa QFuture, QException, QtFuture::makeReadyFuture()
+    \sa QFuture, QException, QtFuture::makeReadyVoidFuture(),
+    QtFuture::makeReadyValueFuture()
+*/
+
+/*! \fn template<typename Container, QtFuture::if_container_with_input_iterators<Container>> static QFuture<QtFuture::ContainedType<Container>> QtFuture::makeReadyRangeFuture(Container &&container)
+
+    \since 6.6
+    \overload
+
+    Takes an input container \a container and returns a QFuture with multiple
+    results of type \c ContainedType initialized from the values of the
+    \a container.
+
+    \note This overload only participates in overload resolution if the
+    \c Container has input iterators.
+
+    \snippet code/src_corelib_thread_qfuture.cpp 32
+    \dots
+    \snippet code/src_corelib_thread_qfuture.cpp 34
+
+    \sa QFuture, QtFuture::makeReadyVoidFuture(),
+    QtFuture::makeReadyValueFuture(), QtFuture::makeExceptionalFuture()
+*/
+
+/*! \fn template<typename ValueType> static QFuture<ValueType> QtFuture::makeReadyRangeFuture(std::initializer_list<ValueType> values)
+
+    \since 6.6
+    \overload
+
+    Returns a QFuture with multiple results of type \c ValueType initialized
+    from the input initializer list \a values.
+
+    \snippet code/src_corelib_thread_qfuture.cpp 33
+    \dots
+    \snippet code/src_corelib_thread_qfuture.cpp 34
+
+    \sa QFuture, QtFuture::makeReadyVoidFuture(),
+    QtFuture::makeReadyValueFuture(), QtFuture::makeExceptionalFuture()
 */
 
 /*! \fn template<class T> template<class Function> QFuture<typename QFuture<T>::ResultType<Function>> QFuture<T>::then(Function &&function)
@@ -1210,8 +1303,18 @@
     is attached. In this case it will be resolved in the current thread. Therefore, when
     in doubt, pass the context explicitly.
 
+    \target context_lifetime
+    If the \a context is destroyed before the chain has finished, the future is canceled.
+    This implies that a cancellation handler might be invoked when the \a context is not valid
+    anymore. To guard against this, capture the \a context as a QPointer:
+
+    \snippet code/src_corelib_thread_qfuture.cpp 37
+
+    When the context object is destroyed, cancellation happens immediately. Previous futures in the
+    chain are \e {not} cancelled and keep running until they are finished.
+
     \note When calling this method, it should be guaranteed that the \a context stays alive
-    throughout the execution of the chain.
+    during setup of the chain.
 
     \sa onFailed(), onCanceled()
 */
@@ -1276,8 +1379,11 @@
     be invoked from a non-gui thread. So \c this is provided as a context to \c .onFailed(),
     to make sure that it will be invoked in the main thread.
 
+    If the \a context is destroyed before the chain has finished, the future is canceled.
+    See \l {context_lifetime}{then()} for details.
+
     \note When calling this method, it should be guaranteed that the \a context stays alive
-    throughout the execution of the chain.
+    during setup of the chain.
 
     See the documentation of the other overload for more details about \a handler.
 
@@ -1339,8 +1445,11 @@
     invoked in the thread of the \a context object. This can be useful if the cancellation
     needs to be handled in a specific thread.
 
+    If the \a context is destroyed before the chain has finished, the future is canceled.
+    See \l {context_lifetime}{then()} for details.
+
     \note When calling this method, it should be guaranteed that the \a context stays alive
-    throughout the execution of the chain.
+    during setup of the chain.
 
     See the documentation of the other overload for more details about \a handler.
 
diff --git a/src/corelib/thread/qfuture_impl.h b/src/corelib/thread/qfuture_impl.h
index bcf29eb3..bf980716 100644
--- a/src/corelib/thread/qfuture_impl.h
+++ b/src/corelib/thread/qfuture_impl.h
@@ -274,6 +274,12 @@ using IsRandomAccessible =
                                     std::begin(std::declval<Sequence>()))>>::iterator_category,
                             std::random_access_iterator_tag>;
 
+template<class Sequence>
+using HasInputIterator =
+        std::is_convertible<typename std::iterator_traits<std::decay_t<decltype(
+                                    std::begin(std::declval<Sequence>()))>>::iterator_category,
+                            std::input_iterator_tag>;
+
 template<class Iterator>
 using IsForwardIterable =
         std::is_convertible<typename std::iterator_traits<Iterator>::iterator_category,
@@ -583,6 +589,18 @@ void Continuation<Function, ResultType, ParentResultType>::create(F &&func,
     f->d.setContinuation(ContinuationWrapper(std::move(continuation)), fi.d);
 }
 
+// defined in qfutureinterface.cpp:
+Q_CORE_EXPORT void watchContinuationImpl(const QObject *context, QSlotObjectBase *slotObj,
+                                         QFutureInterfaceBase &fi);
+template <typename Continuation>
+void watchContinuation(const QObject *context, Continuation &&c, QFutureInterfaceBase &fi)
+{
+    using Prototype = typename QtPrivate::Callable<Continuation>::Function;
+    watchContinuationImpl(context,
+                          QtPrivate::makeCallableObject<Prototype>(std::forward<Continuation>(c)),
+                          fi);
+}
+
 template<typename Function, typename ResultType, typename ParentResultType>
 template<typename F>
 void Continuation<Function, ResultType, ParentResultType>::create(F &&func,
@@ -591,21 +609,19 @@ void Continuation<Function, ResultType, ParentResultType>::create(F &&func,
                                                                   QObject *context)
 {
     Q_ASSERT(f);
+    Q_ASSERT(context);
 
-    auto continuation = [func = std::forward<F>(func), fi,
-                         context = QPointer<QObject>(context)](
-                                const QFutureInterfaceBase &parentData) mutable {
-        Q_ASSERT(context);
-        const auto parent = QFutureInterface<ParentResultType>(parentData).future();
-        QMetaObject::invokeMethod(
-                context,
-                [func = std::forward<F>(func), promise = QPromise(fi), parent]() mutable {
-                    SyncContinuation<Function, ResultType, ParentResultType> continuationJob(
-                            std::forward<Function>(func), parent, std::move(promise));
-                    continuationJob.execute();
-                });
+    // When the context object is destroyed, the signal-slot connection is broken and the
+    // continuation callback is destroyed. The promise that is created in the capture list is
+    // destroyed and, if it is not yet finished, cancelled.
+    auto continuation = [func = std::forward<F>(func), parent = *f,
+                         promise = QPromise(fi)]() mutable {
+        SyncContinuation<Function, ResultType, ParentResultType> continuationJob(
+                std::forward<Function>(func), parent, std::move(promise));
+        continuationJob.execute();
     };
-    f->d.setContinuation(ContinuationWrapper(std::move(continuation)), fi.d);
+
+    QtPrivate::watchContinuation(context, std::move(continuation), f->d);
 }
 
 template<typename Function, typename ResultType, typename ParentResultType>
@@ -689,22 +705,15 @@ void FailureHandler<Function, ResultType>::create(F &&function, QFuture<ResultTy
                                                   QObject *context)
 {
     Q_ASSERT(future);
+    Q_ASSERT(context);
+    auto failureContinuation = [function = std::forward<F>(function),
+                                parent = *future, promise = QPromise(fi)]() mutable {
+        FailureHandler<Function, ResultType> failureHandler(
+                std::forward<Function>(function), parent, std::move(promise));
+        failureHandler.run();
+    };
 
-    auto failureContinuation =
-            [function = std::forward<F>(function), fi,
-             context = QPointer<QObject>(context)](const QFutureInterfaceBase &parentData) mutable {
-                Q_ASSERT(context);
-                const auto parent = QFutureInterface<ResultType>(parentData).future();
-                QMetaObject::invokeMethod(context,
-                                          [function = std::forward<F>(function),
-                                          promise = QPromise(fi), parent]() mutable {
-                    FailureHandler<Function, ResultType> failureHandler(
-                                std::forward<Function>(function), parent, std::move(promise));
-                    failureHandler.run();
-                });
-            };
-
-    future->d.setContinuation(ContinuationWrapper(std::move(failureContinuation)));
+    QtPrivate::watchContinuation(context, std::move(failureContinuation), future->d);
 }
 
 template<class Function, class ResultType>
@@ -792,19 +801,13 @@ public:
                        QObject *context)
     {
         Q_ASSERT(future);
-        auto canceledContinuation = [fi, handler = std::forward<F>(handler),
-                                     context = QPointer<QObject>(context)](
-                                            const QFutureInterfaceBase &parentData) mutable {
-            Q_ASSERT(context);
-            auto parentFuture = QFutureInterface<ResultType>(parentData).future();
-            QMetaObject::invokeMethod(context,
-                                      [promise = QPromise(fi), parentFuture,
-                                      handler = std::forward<F>(handler)]() mutable {
-                run(std::forward<F>(handler), parentFuture, std::move(promise));
-            });
+        Q_ASSERT(context);
+        auto canceledContinuation = [handler = std::forward<F>(handler),
+                                     parentFuture = *future, promise = QPromise(fi)]() mutable {
+            run(std::forward<F>(handler), parentFuture, std::move(promise));
         };
 
-        future->d.setContinuation(ContinuationWrapper(std::move(canceledContinuation)));
+        QtPrivate::watchContinuation(context, std::move(canceledContinuation), future->d);
     }
 
     template<class F = Function>
@@ -888,6 +891,16 @@ struct UnwrapHandler
     }
 };
 
+template<typename ValueType>
+QFuture<ValueType> makeReadyRangeFutureImpl(const QList<ValueType> &values)
+{
+    QFutureInterface<ValueType> promise;
+    promise.reportStarted();
+    promise.reportResults(values);
+    promise.reportFinished();
+    return promise.future();
+}
+
 } // namespace QtPrivate
 
 namespace QtFuture {
@@ -953,8 +966,37 @@ static QFuture<ArgsType<Signal>> connect(Sender *sender, Signal signal)
     return promise.future();
 }
 
-template<typename T, typename = QtPrivate::EnableForNonVoid<T>>
-static QFuture<std::decay_t<T>> makeReadyFuture(T &&value)
+template<typename Container>
+using if_container_with_input_iterators =
+        std::enable_if_t<QtPrivate::HasInputIterator<Container>::value, bool>;
+
+template<typename Container>
+using ContainedType =
+        typename std::iterator_traits<decltype(
+                    std::cbegin(std::declval<Container&>()))>::value_type;
+
+template<typename Container, if_container_with_input_iterators<Container> = true>
+static QFuture<ContainedType<Container>> makeReadyRangeFuture(Container &&container)
+{
+    // handle QList<T> separately, because reportResults() takes a QList
+    // as an input
+    using ValueType = ContainedType<Container>;
+    if constexpr (std::is_convertible_v<q20::remove_cvref_t<Container>, QList<ValueType>>) {
+        return QtPrivate::makeReadyRangeFutureImpl(container);
+    } else {
+        return QtPrivate::makeReadyRangeFutureImpl(QList<ValueType>{std::cbegin(container),
+                                                                    std::cend(container)});
+    }
+}
+
+template<typename ValueType>
+static QFuture<ValueType> makeReadyRangeFuture(std::initializer_list<ValueType> values)
+{
+    return QtPrivate::makeReadyRangeFutureImpl(QList<ValueType>{values});
+}
+
+template<typename T>
+static QFuture<std::decay_t<T>> makeReadyValueFuture(T &&value)
 {
     QFutureInterface<std::decay_t<T>> promise;
     promise.reportStarted();
@@ -964,30 +1006,26 @@ static QFuture<std::decay_t<T>> makeReadyFuture(T &&value)
     return promise.future();
 }
 
-#if defined(Q_QDOC)
-static QFuture<void> makeReadyFuture()
-#else
-template<typename T = void>
-static QFuture<T> makeReadyFuture()
-#endif
-{
-    QFutureInterface<T> promise;
-    promise.reportStarted();
-    promise.reportFinished();
+Q_CORE_EXPORT QFuture<void> makeReadyVoidFuture(); // implemented in qfutureinterface.cpp
 
-    return promise.future();
+#if QT_DEPRECATED_SINCE(6, 10)
+template<typename T, typename = QtPrivate::EnableForNonVoid<T>>
+QT_DEPRECATED_VERSION_X(6, 10, "Use makeReadyValueFuture() instead")
+static QFuture<std::decay_t<T>> makeReadyFuture(T &&value)
+{
+    return makeReadyValueFuture(std::forward<T>(value));
 }
 
+// the void specialization is moved to the end of qfuture.h, because it now
+// uses makeReadyVoidFuture() and required QFuture<void> to be defined.
+
 template<typename T>
+QT_DEPRECATED_VERSION_X(6, 10, "Use makeReadyRangeFuture() instead")
 static QFuture<T> makeReadyFuture(const QList<T> &values)
 {
-    QFutureInterface<T> promise;
-    promise.reportStarted();
-    promise.reportResults(values);
-    promise.reportFinished();
-
-    return promise.future();
+    return makeReadyRangeFuture(values);
 }
+#endif // QT_DEPRECATED_SINCE(6, 10)
 
 #ifndef QT_NO_EXCEPTIONS
 
@@ -1067,9 +1105,10 @@ void addCompletionHandlersImpl(const std::shared_ptr<ContextType> &context,
 {
     auto future = std::get<Index>(t);
     using ResultType = typename ContextType::ValueType;
-    future.then([context](const std::tuple_element_t<Index, std::tuple<Ts...>> &f) {
+    // Need context=context so that the compiler does not infer the captured variable's type as 'const'
+    future.then([context=context](const std::tuple_element_t<Index, std::tuple<Ts...>> &f) {
         context->checkForCompletion(Index, ResultType { std::in_place_index<Index>, f });
-    }).onCanceled([context, future]() {
+    }).onCanceled([context=context, future]() {
         context->checkForCompletion(Index, ResultType { std::in_place_index<Index>, future });
     });
 
@@ -1089,7 +1128,7 @@ QFuture<OutputSequence> whenAllImpl(InputIt first, InputIt last)
 {
     const qsizetype size = std::distance(first, last);
     if (size == 0)
-        return QtFuture::makeReadyFuture(OutputSequence());
+        return QtFuture::makeReadyValueFuture(OutputSequence());
 
     const auto context = std::make_shared<QtPrivate::WhenAllContext<OutputSequence>>(size);
     context->futures.resize(size);
@@ -1097,9 +1136,10 @@ QFuture<OutputSequence> whenAllImpl(InputIt first, InputIt last)
 
     qsizetype idx = 0;
     for (auto it = first; it != last; ++it, ++idx) {
-        it->then([context, idx](const ValueType &f) {
+        // Need context=context so that the compiler does not infer the captured variable's type as 'const'
+        it->then([context=context, idx](const ValueType &f) {
             context->checkForCompletion(idx, f);
-        }).onCanceled([context, idx, f = *it] {
+        }).onCanceled([context=context, idx, f = *it] {
             context->checkForCompletion(idx, f);
         });
     }
@@ -1128,7 +1168,7 @@ QFuture<QtFuture::WhenAnyResult<typename Future<ValueType>::type>> whenAnyImpl(I
 
     const qsizetype size = std::distance(first, last);
     if (size == 0) {
-        return QtFuture::makeReadyFuture(
+        return QtFuture::makeReadyValueFuture(
                 QtFuture::WhenAnyResult { qsizetype(-1), QFuture<PackagedType>() });
     }
 
@@ -1137,9 +1177,10 @@ QFuture<QtFuture::WhenAnyResult<typename Future<ValueType>::type>> whenAnyImpl(I
 
     qsizetype idx = 0;
     for (auto it = first; it != last; ++it, ++idx) {
-        it->then([context, idx](const ValueType &f) {
+        // Need context=context so that the compiler does not infer the captured variable's type as 'const'
+        it->then([context=context, idx](const ValueType &f) {
             context->checkForCompletion(idx, QtFuture::WhenAnyResult { idx, f });
-        }).onCanceled([context, idx, f = *it] {
+        }).onCanceled([context=context, idx, f = *it] {
             context->checkForCompletion(idx, QtFuture::WhenAnyResult { idx, f });
         });
     }
diff --git a/src/corelib/thread/qfutureinterface.cpp b/src/corelib/thread/qfutureinterface.cpp
index 680afa00..de35089b 100644
--- a/src/corelib/thread/qfutureinterface.cpp
+++ b/src/corelib/thread/qfutureinterface.cpp
@@ -6,9 +6,12 @@
 #include "qfutureinterface_p.h"
 
 #include <QtCore/qatomic.h>
+#include <QtCore/qcoreapplication.h>
 #include <QtCore/qthread.h>
+#include <QtCore/qvarlengtharray.h>
 #include <QtCore/private/qsimd_p.h> // for qYieldCpu()
 #include <private/qthreadpool_p.h>
+#include <private/qobject_p.h>
 
 #ifdef interface
 #  undef interface
@@ -29,6 +32,7 @@ namespace {
 class ThreadPoolThreadReleaser {
     QThreadPool *m_pool;
 public:
+    Q_NODISCARD_CTOR
     explicit ThreadPoolThreadReleaser(QThreadPool *pool)
         : m_pool(pool)
     { if (pool) pool->releaseThread(); }
@@ -41,6 +45,99 @@ const auto suspendingOrSuspended =
 
 } // unnamed namespace
 
+class QBasicFutureWatcher : public QObject, QFutureCallOutInterface
+{
+    Q_OBJECT
+public:
+    explicit QBasicFutureWatcher(QObject *parent = nullptr);
+    ~QBasicFutureWatcher() override;
+
+    void setFuture(QFutureInterfaceBase &fi);
+
+    bool event(QEvent *event) override;
+
+Q_SIGNALS:
+    void finished();
+
+private:
+    QFutureInterfaceBase future;
+
+    void postCallOutEvent(const QFutureCallOutEvent &event) override;
+    void callOutInterfaceDisconnected() override;
+};
+
+void QBasicFutureWatcher::postCallOutEvent(const QFutureCallOutEvent &event)
+{
+    if (thread() == QThread::currentThread()) {
+        // If we are in the same thread, don't queue up anything.
+        std::unique_ptr<QFutureCallOutEvent> clonedEvent(event.clone());
+        QCoreApplication::sendEvent(this, clonedEvent.get());
+    } else {
+        QCoreApplication::postEvent(this, event.clone());
+    }
+}
+
+void QBasicFutureWatcher::callOutInterfaceDisconnected()
+{
+    QCoreApplication::removePostedEvents(this, QEvent::FutureCallOut);
+}
+
+/*
+ * QBasicFutureWatcher is a more lightweight version of QFutureWatcher for internal use
+ */
+QBasicFutureWatcher::QBasicFutureWatcher(QObject *parent)
+    : QObject(parent)
+{
+}
+
+QBasicFutureWatcher::~QBasicFutureWatcher()
+{
+    future.d->disconnectOutputInterface(this);
+}
+
+void QBasicFutureWatcher::setFuture(QFutureInterfaceBase &fi)
+{
+    future = fi;
+    future.d->connectOutputInterface(this);
+}
+
+bool QBasicFutureWatcher::event(QEvent *event)
+{
+    if (event->type() == QEvent::FutureCallOut) {
+        QFutureCallOutEvent *callOutEvent = static_cast<QFutureCallOutEvent *>(event);
+        if (callOutEvent->callOutType == QFutureCallOutEvent::Finished)
+            emit finished();
+        return true;
+    }
+    return QObject::event(event);
+}
+
+void QtPrivate::watchContinuationImpl(const QObject *context, QSlotObjectBase *slotObj,
+                                      QFutureInterfaceBase &fi)
+{
+    Q_ASSERT(context);
+    Q_ASSERT(slotObj);
+
+    auto slot = SlotObjUniquePtr(slotObj);
+
+    auto *watcher = new QBasicFutureWatcher;
+    watcher->moveToThread(context->thread());
+    // ### we're missing a convenient way to `QObject::connect()` to a `QSlotObjectBase`...
+    QObject::connect(watcher, &QBasicFutureWatcher::finished,
+                     // for the following, cf. QMetaObject::invokeMethodImpl():
+                     // we know `slot` is a lambda returning `void`, so we can just
+                     // `call()` with `obj` and `args[0]` set to `nullptr`:
+                     watcher, [slot = std::move(slot)] {
+                         void *args[] = { nullptr }; // for `void` return value
+                         slot->call(nullptr, args);
+                     });
+    QObject::connect(watcher, &QBasicFutureWatcher::finished,
+                     watcher, &QObject::deleteLater);
+    QObject::connect(context, &QObject::destroyed,
+                     watcher, &QObject::deleteLater);
+    watcher->setFuture(fi);
+}
+
 QFutureCallOutInterface::~QFutureCallOutInterface()
     = default;
 
@@ -750,23 +847,25 @@ void QFutureInterfaceBasePrivate::connectOutputInterface(QFutureCallOutInterface
 {
     QMutexLocker locker(&m_mutex);
 
+    QVarLengthArray<std::unique_ptr<QFutureCallOutEvent>, 3> events;
+
     const auto currentState = state.loadRelaxed();
     if (currentState & QFutureInterfaceBase::Started) {
-        interface->postCallOutEvent(QFutureCallOutEvent(QFutureCallOutEvent::Started));
+        events.emplace_back(new QFutureCallOutEvent(QFutureCallOutEvent::Started));
         if (m_progress) {
-            interface->postCallOutEvent(QFutureCallOutEvent(QFutureCallOutEvent::ProgressRange,
-                                                            m_progress->minimum,
-                                                            m_progress->maximum));
-            interface->postCallOutEvent(QFutureCallOutEvent(QFutureCallOutEvent::Progress,
-                                                            m_progressValue,
-                                                            m_progress->text));
+            events.emplace_back(new QFutureCallOutEvent(QFutureCallOutEvent::ProgressRange,
+                                                        m_progress->minimum,
+                                                        m_progress->maximum));
+            events.emplace_back(new QFutureCallOutEvent(QFutureCallOutEvent::Progress,
+                                                        m_progressValue,
+                                                        m_progress->text));
         } else {
-            interface->postCallOutEvent(QFutureCallOutEvent(QFutureCallOutEvent::ProgressRange,
-                                                            0,
-                                                            0));
-            interface->postCallOutEvent(QFutureCallOutEvent(QFutureCallOutEvent::Progress,
-                                                            m_progressValue,
-                                                            QString()));
+            events.emplace_back(new QFutureCallOutEvent(QFutureCallOutEvent::ProgressRange,
+                                                        0,
+                                                        0));
+            events.emplace_back(new QFutureCallOutEvent(QFutureCallOutEvent::Progress,
+                                                        m_progressValue,
+                                                        QString()));
         }
     }
 
@@ -775,25 +874,29 @@ void QFutureInterfaceBasePrivate::connectOutputInterface(QFutureCallOutInterface
         while (it != data.m_results.end()) {
             const int begin = it.resultIndex();
             const int end = begin + it.batchSize();
-            interface->postCallOutEvent(QFutureCallOutEvent(QFutureCallOutEvent::ResultsReady,
-                                                            begin,
-                                                            end));
+            events.emplace_back(new QFutureCallOutEvent(QFutureCallOutEvent::ResultsReady,
+                                                        begin,
+                                                        end));
             it.batchedAdvance();
         }
     }
 
     if (currentState & QFutureInterfaceBase::Suspended)
-        interface->postCallOutEvent(QFutureCallOutEvent(QFutureCallOutEvent::Suspended));
+        events.emplace_back(new QFutureCallOutEvent(QFutureCallOutEvent::Suspended));
     else if (currentState & QFutureInterfaceBase::Suspending)
-        interface->postCallOutEvent(QFutureCallOutEvent(QFutureCallOutEvent::Suspending));
+        events.emplace_back(new QFutureCallOutEvent(QFutureCallOutEvent::Suspending));
 
     if (currentState & QFutureInterfaceBase::Canceled)
-        interface->postCallOutEvent(QFutureCallOutEvent(QFutureCallOutEvent::Canceled));
+        events.emplace_back(new QFutureCallOutEvent(QFutureCallOutEvent::Canceled));
 
     if (currentState & QFutureInterfaceBase::Finished)
-        interface->postCallOutEvent(QFutureCallOutEvent(QFutureCallOutEvent::Finished));
+        events.emplace_back(new QFutureCallOutEvent(QFutureCallOutEvent::Finished));
 
     outputConnections.append(interface);
+
+    locker.unlock();
+    for (auto &&event : events)
+        interface->postCallOutEvent(*event);
 }
 
 void QFutureInterfaceBasePrivate::disconnectOutputInterface(QFutureCallOutInterface *interface)
@@ -888,4 +991,19 @@ bool QFutureInterfaceBase::launchAsync() const
     return d->launchAsync;
 }
 
+namespace QtFuture {
+
+QFuture<void> makeReadyVoidFuture()
+{
+    QFutureInterface<void> promise;
+    promise.reportStarted();
+    promise.reportFinished();
+
+    return promise.future();
+}
+
+} // namespace QtFuture
+
 QT_END_NAMESPACE
+
+#include "qfutureinterface.moc"
diff --git a/src/corelib/thread/qfutureinterface.h b/src/corelib/thread/qfutureinterface.h
index 7e682e69..151584e6 100644
--- a/src/corelib/thread/qfutureinterface.h
+++ b/src/corelib/thread/qfutureinterface.h
@@ -38,7 +38,9 @@ class CanceledHandler;
 template<class Function, class ResultType>
 class FailureHandler;
 #endif
+
 }
+class QBasicFutureWatcher;
 
 class Q_CORE_EXPORT QFutureInterfaceBase
 {
@@ -176,6 +178,8 @@ private:
     friend class QtPrivate::FailureHandler;
 #endif
 
+    friend class QBasicFutureWatcher;
+
     template<class T>
     friend class QPromise;
 
@@ -236,6 +240,8 @@ public:
 
     inline QFuture<T> future(); // implemented in qfuture.h
 
+    template <typename...Args, std::enable_if_t<std::is_constructible_v<T, Args...>, bool> = true>
+    inline bool reportAndEmplaceResult(int index, Args&&...args);
     inline bool reportResult(const T *result, int index = -1);
     inline bool reportAndMoveResult(T &&result, int index = -1);
     inline bool reportResult(T &&result, int index = -1);
@@ -301,7 +307,8 @@ inline bool QFutureInterface<T>::reportResult(const T *result, int index)
 }
 
 template<typename T>
-bool QFutureInterface<T>::reportAndMoveResult(T &&result, int index)
+template<typename...Args, std::enable_if_t<std::is_constructible_v<T, Args...>, bool>>
+bool QFutureInterface<T>::reportAndEmplaceResult(int index, Args&&...args)
 {
     QMutexLocker<QMutex> locker{&mutex()};
     if (queryState(Canceled) || queryState(Finished))
@@ -311,13 +318,19 @@ bool QFutureInterface<T>::reportAndMoveResult(T &&result, int index)
     QtPrivate::ResultStoreBase &store = resultStoreBase();
 
     const int oldResultCount = store.count();
-    const int insertIndex = store.moveResult(index, std::move(result));
+    const int insertIndex = store.emplaceResult<T>(index, std::forward<Args>(args)...);
     // Let's make sure it's not in pending results.
     if (insertIndex != -1 && (!store.filterMode() || oldResultCount < store.count()))
         reportResultsReady(insertIndex, store.count());
     return insertIndex != -1;
 }
 
+template<typename T>
+bool QFutureInterface<T>::reportAndMoveResult(T &&result, int index)
+{
+    return reportAndEmplaceResult(index, std::move(result));
+}
+
 template<typename T>
 bool QFutureInterface<T>::reportResult(T &&result, int index)
 {
diff --git a/src/corelib/thread/qfuturesynchronizer.h b/src/corelib/thread/qfuturesynchronizer.h
index 183e3ab3..368ef0c8 100644
--- a/src/corelib/thread/qfuturesynchronizer.h
+++ b/src/corelib/thread/qfuturesynchronizer.h
@@ -17,7 +17,8 @@ class QFutureSynchronizer
     Q_DISABLE_COPY(QFutureSynchronizer)
 
 public:
-    QFutureSynchronizer() : m_cancelOnWait(false) { }
+    Q_NODISCARD_CTOR QFutureSynchronizer() : m_cancelOnWait(false) { }
+    Q_NODISCARD_CTOR
     explicit QFutureSynchronizer(QFuture<T> future)
         : m_cancelOnWait(false)
     { addFuture(std::move(future)); }
diff --git a/src/corelib/thread/qgenericatomic.h b/src/corelib/thread/qgenericatomic.h
index 4f4f959f..91ccbbd1 100644
--- a/src/corelib/thread/qgenericatomic.h
+++ b/src/corelib/thread/qgenericatomic.h
@@ -5,8 +5,9 @@
 #ifndef QGENERICATOMIC_H
 #define QGENERICATOMIC_H
 
-#include <QtCore/qglobal.h>
-#include <QtCore/qtypeinfo.h>
+#include <QtCore/qcompilerdetection.h>
+#include <QtCore/qtconfigmacros.h>
+#include <QtCore/qtypes.h>
 
 QT_BEGIN_NAMESPACE
 
@@ -33,335 +34,5 @@ template <typename T> struct QAtomicAdditiveType<T *>
     static const int AddScale = sizeof(T);
 };
 
-// not really atomic...
-template <typename BaseClass> struct QGenericAtomicOps
-{
-    template <typename T> struct AtomicType { typedef T Type; typedef T *PointerType; };
-
-    template <typename T> static void acquireMemoryFence(const T &_q_value) noexcept
-    {
-        BaseClass::orderedMemoryFence(_q_value);
-    }
-    template <typename T> static void releaseMemoryFence(const T &_q_value) noexcept
-    {
-        BaseClass::orderedMemoryFence(_q_value);
-    }
-    template <typename T> static void orderedMemoryFence(const T &) noexcept
-    {
-    }
-
-    template <typename T> static Q_ALWAYS_INLINE
-    T load(const T &_q_value) noexcept
-    {
-        return _q_value;
-    }
-
-    template <typename T, typename X> static Q_ALWAYS_INLINE
-    void store(T &_q_value, X newValue) noexcept
-    {
-        _q_value = newValue;
-    }
-
-    template <typename T> static Q_ALWAYS_INLINE
-    T loadRelaxed(const T &_q_value) noexcept
-    {
-        return _q_value;
-    }
-
-    template <typename T, typename X> static Q_ALWAYS_INLINE
-    void storeRelaxed(T &_q_value, X newValue) noexcept
-    {
-        _q_value = newValue;
-    }
-
-    template <typename T> static Q_ALWAYS_INLINE
-    T loadAcquire(const T &_q_value) noexcept
-    {
-        T tmp = *static_cast<const volatile T *>(&_q_value);
-        BaseClass::acquireMemoryFence(_q_value);
-        return tmp;
-    }
-
-    template <typename T, typename X> static Q_ALWAYS_INLINE
-    void storeRelease(T &_q_value, X newValue) noexcept
-    {
-        BaseClass::releaseMemoryFence(_q_value);
-        *static_cast<volatile T *>(&_q_value) = newValue;
-    }
-
-    static inline constexpr bool isReferenceCountingNative() noexcept
-    { return BaseClass::isFetchAndAddNative(); }
-    static inline constexpr bool isReferenceCountingWaitFree() noexcept
-    { return BaseClass::isFetchAndAddWaitFree(); }
-    template <typename T> static Q_ALWAYS_INLINE
-    bool ref(T &_q_value) noexcept
-    {
-        return BaseClass::fetchAndAddRelaxed(_q_value, 1) != T(-1);
-    }
-
-    template <typename T> static Q_ALWAYS_INLINE
-    bool deref(T &_q_value) noexcept
-    {
-         return BaseClass::fetchAndAddRelaxed(_q_value, -1) != 1;
-    }
-
-#if 0
-    // These functions have no default implementation
-    // Architectures must implement them
-    static inline constexpr bool isTestAndSetNative() noexcept;
-    static inline constexpr bool isTestAndSetWaitFree() noexcept;
-    template <typename T, typename X> static inline
-    bool testAndSetRelaxed(T &_q_value, X expectedValue, X newValue) noexcept;
-    template <typename T, typename X> static inline
-    bool testAndSetRelaxed(T &_q_value, X expectedValue, X newValue, X *currentValue) noexcept;
-#endif
-
-    template <typename T, typename X> static Q_ALWAYS_INLINE
-    bool testAndSetAcquire(T &_q_value, X expectedValue, X newValue) noexcept
-    {
-        bool tmp = BaseClass::testAndSetRelaxed(_q_value, expectedValue, newValue);
-        BaseClass::acquireMemoryFence(_q_value);
-        return tmp;
-    }
-
-    template <typename T, typename X> static Q_ALWAYS_INLINE
-    bool testAndSetRelease(T &_q_value, X expectedValue, X newValue) noexcept
-    {
-        BaseClass::releaseMemoryFence(_q_value);
-        return BaseClass::testAndSetRelaxed(_q_value, expectedValue, newValue);
-    }
-
-    template <typename T, typename X> static Q_ALWAYS_INLINE
-    bool testAndSetOrdered(T &_q_value, X expectedValue, X newValue) noexcept
-    {
-        BaseClass::orderedMemoryFence(_q_value);
-        return BaseClass::testAndSetRelaxed(_q_value, expectedValue, newValue);
-    }
-
-    template <typename T, typename X> static Q_ALWAYS_INLINE
-    bool testAndSetAcquire(T &_q_value, X expectedValue, X newValue, X *currentValue) noexcept
-    {
-        bool tmp = BaseClass::testAndSetRelaxed(_q_value, expectedValue, newValue, currentValue);
-        BaseClass::acquireMemoryFence(_q_value);
-        return tmp;
-    }
-
-    template <typename T, typename X> static Q_ALWAYS_INLINE
-    bool testAndSetRelease(T &_q_value, X expectedValue, X newValue, X *currentValue) noexcept
-    {
-        BaseClass::releaseMemoryFence(_q_value);
-        return BaseClass::testAndSetRelaxed(_q_value, expectedValue, newValue, currentValue);
-    }
-
-    template <typename T, typename X> static Q_ALWAYS_INLINE
-    bool testAndSetOrdered(T &_q_value, X expectedValue, X newValue, X *currentValue) noexcept
-    {
-        BaseClass::orderedMemoryFence(_q_value);
-        return BaseClass::testAndSetRelaxed(_q_value, expectedValue, newValue, currentValue);
-    }
-
-    static inline constexpr bool isFetchAndStoreNative() noexcept { return false; }
-    static inline constexpr bool isFetchAndStoreWaitFree() noexcept { return false; }
-
-    template <typename T, typename X> static Q_ALWAYS_INLINE
-    T fetchAndStoreRelaxed(T &_q_value, X newValue) noexcept
-    {
-        // implement fetchAndStore on top of testAndSet
-        for (;;) {
-            T tmp = loadRelaxed(_q_value);
-            if (BaseClass::testAndSetRelaxed(_q_value, tmp, newValue))
-                return tmp;
-        }
-    }
-
-    template <typename T, typename X> static Q_ALWAYS_INLINE
-    T fetchAndStoreAcquire(T &_q_value, X newValue) noexcept
-    {
-        T tmp = BaseClass::fetchAndStoreRelaxed(_q_value, newValue);
-        BaseClass::acquireMemoryFence(_q_value);
-        return tmp;
-    }
-
-    template <typename T, typename X> static Q_ALWAYS_INLINE
-    T fetchAndStoreRelease(T &_q_value, X newValue) noexcept
-    {
-        BaseClass::releaseMemoryFence(_q_value);
-        return BaseClass::fetchAndStoreRelaxed(_q_value, newValue);
-    }
-
-    template <typename T, typename X> static Q_ALWAYS_INLINE
-    T fetchAndStoreOrdered(T &_q_value, X newValue) noexcept
-    {
-        BaseClass::orderedMemoryFence(_q_value);
-        return BaseClass::fetchAndStoreRelaxed(_q_value, newValue);
-    }
-
-    static inline constexpr bool isFetchAndAddNative() noexcept { return false; }
-    static inline constexpr bool isFetchAndAddWaitFree() noexcept { return false; }
-    template <typename T> static Q_ALWAYS_INLINE
-    T fetchAndAddRelaxed(T &_q_value, typename QAtomicAdditiveType<T>::AdditiveT valueToAdd) noexcept
-    {
-        // implement fetchAndAdd on top of testAndSet
-        for (;;) {
-            T tmp = BaseClass::loadRelaxed(_q_value);
-            if (BaseClass::testAndSetRelaxed(_q_value, tmp, T(tmp + valueToAdd)))
-                return tmp;
-        }
-    }
-
-    template <typename T> static Q_ALWAYS_INLINE
-    T fetchAndAddAcquire(T &_q_value, typename QAtomicAdditiveType<T>::AdditiveT valueToAdd) noexcept
-    {
-        T tmp = BaseClass::fetchAndAddRelaxed(_q_value, valueToAdd);
-        BaseClass::acquireMemoryFence(_q_value);
-        return tmp;
-    }
-
-    template <typename T> static Q_ALWAYS_INLINE
-    T fetchAndAddRelease(T &_q_value, typename QAtomicAdditiveType<T>::AdditiveT valueToAdd) noexcept
-    {
-        BaseClass::releaseMemoryFence(_q_value);
-        return BaseClass::fetchAndAddRelaxed(_q_value, valueToAdd);
-    }
-
-    template <typename T> static Q_ALWAYS_INLINE
-    T fetchAndAddOrdered(T &_q_value, typename QAtomicAdditiveType<T>::AdditiveT valueToAdd) noexcept
-    {
-        BaseClass::orderedMemoryFence(_q_value);
-        return BaseClass::fetchAndAddRelaxed(_q_value, valueToAdd);
-    }
-
-QT_WARNING_PUSH
-QT_WARNING_DISABLE_MSVC(4146)   // unary minus operator applied to unsigned type, result still unsigned
-    template <typename T> static Q_ALWAYS_INLINE
-    T fetchAndSubRelaxed(T &_q_value, typename QAtomicAdditiveType<T>::AdditiveT operand) noexcept
-    {
-        // implement fetchAndSub on top of fetchAndAdd
-        return fetchAndAddRelaxed(_q_value, -operand);
-    }
-QT_WARNING_POP
-
-    template <typename T> static Q_ALWAYS_INLINE
-    T fetchAndSubAcquire(T &_q_value, typename QAtomicAdditiveType<T>::AdditiveT operand) noexcept
-    {
-        T tmp = BaseClass::fetchAndSubRelaxed(_q_value, operand);
-        BaseClass::acquireMemoryFence(_q_value);
-        return tmp;
-    }
-
-    template <typename T> static Q_ALWAYS_INLINE
-    T fetchAndSubRelease(T &_q_value, typename QAtomicAdditiveType<T>::AdditiveT operand) noexcept
-    {
-        BaseClass::releaseMemoryFence(_q_value);
-        return BaseClass::fetchAndSubRelaxed(_q_value, operand);
-    }
-
-    template <typename T> static Q_ALWAYS_INLINE
-    T fetchAndSubOrdered(T &_q_value, typename QAtomicAdditiveType<T>::AdditiveT operand) noexcept
-    {
-        BaseClass::orderedMemoryFence(_q_value);
-        return BaseClass::fetchAndSubRelaxed(_q_value, operand);
-    }
-
-    template <typename T> static Q_ALWAYS_INLINE
-    T fetchAndAndRelaxed(T &_q_value, typename std::enable_if<QTypeInfo<T>::isIntegral, T>::type operand) noexcept
-    {
-        // implement fetchAndAnd on top of testAndSet
-        T tmp = BaseClass::loadRelaxed(_q_value);
-        for (;;) {
-            if (BaseClass::testAndSetRelaxed(_q_value, tmp, T(tmp & operand), &tmp))
-                return tmp;
-        }
-    }
-
-    template <typename T> static Q_ALWAYS_INLINE
-    T fetchAndAndAcquire(T &_q_value, typename std::enable_if<QTypeInfo<T>::isIntegral, T>::type operand) noexcept
-    {
-        T tmp = BaseClass::fetchAndAndRelaxed(_q_value, operand);
-        BaseClass::acquireMemoryFence(_q_value);
-        return tmp;
-    }
-
-    template <typename T> static Q_ALWAYS_INLINE
-    T fetchAndAndRelease(T &_q_value, typename std::enable_if<QTypeInfo<T>::isIntegral, T>::type operand) noexcept
-    {
-        BaseClass::releaseMemoryFence(_q_value);
-        return BaseClass::fetchAndAndRelaxed(_q_value, operand);
-    }
-
-    template <typename T> static Q_ALWAYS_INLINE
-    T fetchAndAndOrdered(T &_q_value, typename std::enable_if<QTypeInfo<T>::isIntegral, T>::type operand) noexcept
-    {
-        BaseClass::orderedMemoryFence(_q_value);
-        return BaseClass::fetchAndAndRelaxed(_q_value, operand);
-    }
-
-    template <typename T> static Q_ALWAYS_INLINE
-    T fetchAndOrRelaxed(T &_q_value, typename std::enable_if<QTypeInfo<T>::isIntegral, T>::type operand) noexcept
-    {
-        // implement fetchAndOr on top of testAndSet
-        T tmp = BaseClass::loadRelaxed(_q_value);
-        for (;;) {
-            if (BaseClass::testAndSetRelaxed(_q_value, tmp, T(tmp | operand), &tmp))
-                return tmp;
-        }
-    }
-
-    template <typename T> static Q_ALWAYS_INLINE
-    T fetchAndOrAcquire(T &_q_value, typename std::enable_if<QTypeInfo<T>::isIntegral, T>::type operand) noexcept
-    {
-        T tmp = BaseClass::fetchAndOrRelaxed(_q_value, operand);
-        BaseClass::acquireMemoryFence(_q_value);
-        return tmp;
-    }
-
-    template <typename T> static Q_ALWAYS_INLINE
-    T fetchAndOrRelease(T &_q_value, typename std::enable_if<QTypeInfo<T>::isIntegral, T>::type operand) noexcept
-    {
-        BaseClass::releaseMemoryFence(_q_value);
-        return BaseClass::fetchAndOrRelaxed(_q_value, operand);
-    }
-
-    template <typename T> static Q_ALWAYS_INLINE
-    T fetchAndOrOrdered(T &_q_value, typename std::enable_if<QTypeInfo<T>::isIntegral, T>::type operand) noexcept
-    {
-        BaseClass::orderedMemoryFence(_q_value);
-        return BaseClass::fetchAndOrRelaxed(_q_value, operand);
-    }
-
-    template <typename T> static Q_ALWAYS_INLINE
-    T fetchAndXorRelaxed(T &_q_value, typename std::enable_if<QTypeInfo<T>::isIntegral, T>::type operand) noexcept
-    {
-        // implement fetchAndXor on top of testAndSet
-        T tmp = BaseClass::loadRelaxed(_q_value);
-        for (;;) {
-            if (BaseClass::testAndSetRelaxed(_q_value, tmp, T(tmp ^ operand), &tmp))
-                return tmp;
-        }
-    }
-
-    template <typename T> static Q_ALWAYS_INLINE
-    T fetchAndXorAcquire(T &_q_value, typename std::enable_if<QTypeInfo<T>::isIntegral, T>::type operand) noexcept
-    {
-        T tmp = BaseClass::fetchAndXorRelaxed(_q_value, operand);
-        BaseClass::acquireMemoryFence(_q_value);
-        return tmp;
-    }
-
-    template <typename T> static Q_ALWAYS_INLINE
-    T fetchAndXorRelease(T &_q_value, typename std::enable_if<QTypeInfo<T>::isIntegral, T>::type operand) noexcept
-    {
-        BaseClass::releaseMemoryFence(_q_value);
-        return BaseClass::fetchAndXorRelaxed(_q_value, operand);
-    }
-
-    template <typename T> static Q_ALWAYS_INLINE
-    T fetchAndXorOrdered(T &_q_value, typename std::enable_if<QTypeInfo<T>::isIntegral, T>::type operand) noexcept
-    {
-        BaseClass::orderedMemoryFence(_q_value);
-        return BaseClass::fetchAndXorRelaxed(_q_value, operand);
-    }
-};
-
 QT_END_NAMESPACE
 #endif // QGENERICATOMIC_H
diff --git a/src/corelib/thread/qmutex.cpp b/src/corelib/thread/qmutex.cpp
index ae1a3a73..0e941218 100644
--- a/src/corelib/thread/qmutex.cpp
+++ b/src/corelib/thread/qmutex.cpp
@@ -146,6 +146,23 @@ void QBasicMutex::destroyInternal(QMutexPrivate *d)
     \sa lock(), unlock()
 */
 
+/*! \fn bool QMutex::tryLock(QDeadlineTimer timer)
+    \since 6.6
+
+    Attempts to lock the mutex. This function returns \c true if the lock
+    was obtained; otherwise it returns \c false. If another thread has
+    locked the mutex, this function will wait until \a timer expires
+    for the mutex to become available.
+
+    If the lock was obtained, the mutex must be unlocked with unlock()
+    before another thread can successfully lock it.
+
+    Calling this function multiple times on the same mutex from the
+    same thread will cause a \e dead-lock.
+
+    \sa lock(), unlock()
+*/
+
 /*! \fn bool QMutex::tryLock()
     \overload
 
@@ -279,6 +296,8 @@ QRecursiveMutex::~QRecursiveMutex()
 */
 
 /*!
+    \fn QRecursiveMutex::tryLock(int timeout)
+
     Attempts to lock the mutex. This function returns \c true if the lock
     was obtained; otherwise it returns \c false. If another thread has
     locked the mutex, this function will wait for at most \a timeout
@@ -296,7 +315,24 @@ QRecursiveMutex::~QRecursiveMutex()
 
     \sa lock(), unlock()
 */
-bool QRecursiveMutex::tryLock(int timeout) QT_MUTEX_LOCK_NOEXCEPT
+
+/*!
+    \since 6.6
+
+    Attempts to lock the mutex. This function returns \c true if the lock
+    was obtained; otherwise it returns \c false. If another thread has
+    locked the mutex, this function will wait until \a timeout expires
+    for the mutex to become available.
+
+    If the lock was obtained, the mutex must be unlocked with unlock()
+    before another thread can successfully lock it.
+
+    Calling this function multiple times on the same mutex from the
+    same thread is allowed.
+
+    \sa lock(), unlock()
+*/
+bool QRecursiveMutex::tryLock(QDeadlineTimer timeout) QT_MUTEX_LOCK_NOEXCEPT
 {
     unsigned tsanFlags = QtTsan::MutexWriteReentrant | QtTsan::TryLock;
     QtTsan::mutexPreLock(this, tsanFlags);
@@ -309,7 +345,7 @@ bool QRecursiveMutex::tryLock(int timeout) QT_MUTEX_LOCK_NOEXCEPT
         return true;
     }
     bool success = true;
-    if (timeout == -1) {
+    if (timeout.isForever()) {
         mutex.lock();
     } else {
         success = mutex.tryLock(timeout);
@@ -622,25 +658,37 @@ void QBasicMutex::lockInternal() QT_MUTEX_LOCK_NOEXCEPT
 /*!
     \internal helper for lock(int)
  */
+#if QT_VERSION < QT_VERSION_CHECK(7, 0, 0)
 bool QBasicMutex::lockInternal(int timeout) QT_MUTEX_LOCK_NOEXCEPT
 {
     if (timeout == 0)
         return false;
 
+    return lockInternal(QDeadlineTimer(timeout));
+}
+#endif
+
+/*!
+    \internal helper for tryLock(QDeadlineTimer)
+ */
+bool QBasicMutex::lockInternal(QDeadlineTimer deadlineTimer) QT_MUTEX_LOCK_NOEXCEPT
+{
+    qint64 remainingTime = deadlineTimer.remainingTimeNSecs();
+    if (remainingTime == 0)
+        return false;
+
     if (futexAvailable()) {
-        if (Q_UNLIKELY(timeout < 0)) {
+        if (Q_UNLIKELY(remainingTime < 0)) {    // deadlineTimer.isForever()
             lockInternal();
             return true;
         }
 
-        QDeadlineTimer deadlineTimer(timeout);
         // The mutex is already locked, set a bit indicating we're waiting.
         // Note we must set to dummyFutexValue because there could be other threads
         // also waiting.
         if (d_ptr.fetchAndStoreAcquire(dummyFutexValue()) == nullptr)
             return true;
 
-        qint64 remainingTime = deadlineTimer.remainingTimeNSecs();
         Q_FOREVER {
             if (!futexWait(d_ptr, dummyFutexValue(), remainingTime))
                 return false;
@@ -665,7 +713,7 @@ bool QBasicMutex::lockInternal(int timeout) QT_MUTEX_LOCK_NOEXCEPT
             continue;
 
         if (copy == dummyLocked()) {
-            if (timeout == 0)
+            if (remainingTime == 0)
                 return false;
             // The mutex is locked but does not have a QMutexPrivate yet.
             // we need to allocate a QMutexPrivate
@@ -680,7 +728,7 @@ bool QBasicMutex::lockInternal(int timeout) QT_MUTEX_LOCK_NOEXCEPT
         }
 
         QMutexPrivate *d = static_cast<QMutexPrivate *>(copy);
-        if (timeout == 0 && !d->possiblyUnlocked.loadRelaxed())
+        if (remainingTime == 0 && !d->possiblyUnlocked.loadRelaxed())
             return false;
 
         // At this point we have a pointer to a QMutexPrivate. But the other thread
@@ -733,7 +781,7 @@ bool QBasicMutex::lockInternal(int timeout) QT_MUTEX_LOCK_NOEXCEPT
             continue;
         }
 
-        if (d->wait(timeout)) {
+        if (d->wait(deadlineTimer)) {
             // reset the possiblyUnlocked flag if needed (and deref its corresponding reference)
             if (d->possiblyUnlocked.loadRelaxed() && d->possiblyUnlocked.testAndSetRelaxed(true, false))
                 d->deref();
@@ -742,8 +790,8 @@ bool QBasicMutex::lockInternal(int timeout) QT_MUTEX_LOCK_NOEXCEPT
             Q_ASSERT(d == d_ptr.loadRelaxed());
             return true;
         } else {
-            Q_ASSERT(timeout >= 0);
-            //timeout
+            Q_ASSERT(remainingTime >= 0);
+            // timed out
             d->derefWaiters(1);
             //There may be a race in which the mutex is unlocked right after we timed out,
             // and before we deref the waiters, so maybe the mutex is actually unlocked.
@@ -873,4 +921,4 @@ QT_END_NAMESPACE
 #  include "qmutex_win.cpp"
 #else
 #  include "qmutex_unix.cpp"
-#endif
+#endif
\ No newline at end of file
diff --git a/src/corelib/thread/qmutex.h b/src/corelib/thread/qmutex.h
index a4400891..743b8693 100644
--- a/src/corelib/thread/qmutex.h
+++ b/src/corelib/thread/qmutex.h
@@ -6,11 +6,10 @@
 
 #include <QtCore/qglobal.h>
 #include <QtCore/qatomic.h>
+#include <QtCore/qdeadlinetimer.h>
 #include <QtCore/qtsan_impl.h>
-#include <new>
 
 #include <chrono>
-#include <limits>
 
 QT_BEGIN_NAMESPACE
 
@@ -26,32 +25,6 @@ class QMutex;
 class QRecursiveMutex;
 class QMutexPrivate;
 
-namespace QtPrivate
-{
-    template<class Rep, class Period>
-    static int convertToMilliseconds(std::chrono::duration<Rep, Period> duration)
-    {
-        // N4606 § 30.4.1.3.5 [thread.timedmutex.requirements] specifies that a
-        // duration less than or equal to duration.zero() shall result in a
-        // try_lock, unlike QMutex's tryLock with a negative duration which
-        // results in a lock.
-
-        if (duration <= duration.zero())
-            return 0;
-
-        // when converting from 'duration' to milliseconds, make sure that
-        // the result is not shorter than 'duration':
-        std::chrono::milliseconds wait = std::chrono::duration_cast<std::chrono::milliseconds>(duration);
-        if (wait < duration)
-            wait += std::chrono::milliseconds(1);
-        Q_ASSERT(wait >= duration);
-        const auto ms = wait.count();
-        const auto maxInt = (std::numeric_limits<int>::max)();
-
-        return ms < maxInt ? int(ms) : maxInt;
-    }
-}
-
 class Q_CORE_EXPORT QBasicMutex
 {
     Q_DISABLE_COPY_MOVE(QBasicMutex)
@@ -99,7 +72,10 @@ public:
     bool try_lock() noexcept { return tryLock(); }
 
 private:
-    inline bool fastTryLock() noexcept {
+    inline bool fastTryLock() noexcept
+    {
+        if (d_ptr.loadRelaxed() != nullptr)
+            return false;
         return d_ptr.testAndSetAcquire(nullptr, dummyLocked());
     }
     inline bool fastTryUnlock() noexcept {
@@ -107,7 +83,10 @@ private:
     }
 
     void lockInternal() QT_MUTEX_LOCK_NOEXCEPT;
+    bool lockInternal(QDeadlineTimer timeout) QT_MUTEX_LOCK_NOEXCEPT;
+#if QT_VERSION < QT_VERSION_CHECK(7, 0, 0)
     bool lockInternal(int timeout) QT_MUTEX_LOCK_NOEXCEPT;
+#endif
     void unlockInternal() noexcept;
     void destroyInternal(QMutexPrivate *d);
 
@@ -143,6 +122,11 @@ public:
 
     using QBasicMutex::tryLock;
     bool tryLock(int timeout) QT_MUTEX_LOCK_NOEXCEPT
+    {
+        return tryLock(QDeadlineTimer(timeout));
+    }
+
+    bool tryLock(QDeadlineTimer timeout) QT_MUTEX_LOCK_NOEXCEPT
     {
         unsigned tsanFlags = QtTsan::TryLock;
         QtTsan::mutexPreLock(this, tsanFlags);
@@ -167,17 +151,14 @@ public:
     template <class Rep, class Period>
     bool try_lock_for(std::chrono::duration<Rep, Period> duration)
     {
-        return tryLock(QtPrivate::convertToMilliseconds(duration));
+        return tryLock(QDeadlineTimer(duration));
     }
 
     // TimedLockable concept
     template<class Clock, class Duration>
     bool try_lock_until(std::chrono::time_point<Clock, Duration> timePoint)
     {
-        // Implemented in terms of try_lock_for to honor the similar
-        // requirement in N4606 § 30.4.1.3 [thread.timedmutex.requirements]/12.
-
-        return try_lock_for(timePoint - Clock::now());
+        return tryLock(QDeadlineTimer(timePoint));
     }
 };
 
@@ -198,8 +179,10 @@ public:
 
     // BasicLockable concept
     void lock() QT_MUTEX_LOCK_NOEXCEPT
-    { tryLock(-1); }
-    bool tryLock(int timeout = 0) QT_MUTEX_LOCK_NOEXCEPT;
+    { tryLock(QDeadlineTimer(QDeadlineTimer::Forever)); }
+    QT_CORE_INLINE_SINCE(6, 6)
+    bool tryLock(int timeout) QT_MUTEX_LOCK_NOEXCEPT;
+    bool tryLock(QDeadlineTimer timer = {}) QT_MUTEX_LOCK_NOEXCEPT;
     // BasicLockable concept
     void unlock() noexcept;
 
@@ -210,24 +193,29 @@ public:
     template <class Rep, class Period>
     bool try_lock_for(std::chrono::duration<Rep, Period> duration)
     {
-        return tryLock(QtPrivate::convertToMilliseconds(duration));
+        return tryLock(QDeadlineTimer(duration));
     }
 
     // TimedLockable concept
     template<class Clock, class Duration>
     bool try_lock_until(std::chrono::time_point<Clock, Duration> timePoint)
     {
-        // Implemented in terms of try_lock_for to honor the similar
-        // requirement in N4606 § 30.4.1.3 [thread.timedmutex.requirements]/12.
-
-        return try_lock_for(timePoint - Clock::now());
+        return tryLock(QDeadlineTimer(timePoint));
     }
 };
 
+#if QT_CORE_INLINE_IMPL_SINCE(6, 6)
+bool QRecursiveMutex::tryLock(int timeout) QT_MUTEX_LOCK_NOEXCEPT
+{
+    return tryLock(QDeadlineTimer(timeout));
+}
+#endif
+
 template <typename Mutex>
-class [[nodiscard]] QMutexLocker
+class QMutexLocker
 {
 public:
+    Q_NODISCARD_CTOR
     inline explicit QMutexLocker(Mutex *mutex) QT_MUTEX_LOCK_NOEXCEPT
     {
         m_mutex = mutex;
@@ -237,6 +225,7 @@ public:
         }
     }
 
+    Q_NODISCARD_CTOR
     inline QMutexLocker(QMutexLocker &&other) noexcept
         : m_mutex(std::exchange(other.m_mutex, nullptr)),
           m_isLocked(std::exchange(other.m_isLocked, false))
@@ -320,9 +309,10 @@ private:
 class QRecursiveMutex : public QMutex {};
 
 template <typename Mutex>
-class [[nodiscard]] QMutexLocker
+class QMutexLocker
 {
 public:
+    Q_NODISCARD_CTOR
     inline explicit QMutexLocker(Mutex *) noexcept {}
     inline ~QMutexLocker() noexcept {}
 
diff --git a/src/corelib/thread/qmutex_mac.cpp b/src/corelib/thread/qmutex_mac.cpp
index a9e2330b..7849133e 100644
--- a/src/corelib/thread/qmutex_mac.cpp
+++ b/src/corelib/thread/qmutex_mac.cpp
@@ -5,6 +5,8 @@
 #include "qmutex.h"
 #include "qmutex_p.h"
 
+#include "private/qcore_unix_p.h"
+
 #include <mach/mach.h>
 #include <mach/task.h>
 
@@ -26,18 +28,19 @@ QMutexPrivate::~QMutexPrivate()
         qWarning("QMutex: failed to destroy semaphore, error %d", r);
 }
 
-bool QMutexPrivate::wait(int timeout)
+bool QMutexPrivate::wait(QDeadlineTimer timeout)
 {
     kern_return_t r;
-    if (timeout < 0) {
+    if (timeout.isForever()) {
         do {
             r = semaphore_wait(mach_semaphore);
         } while (r == KERN_ABORTED);
         Q_ASSERT(r == KERN_SUCCESS);
     } else {
+        timespec tv = durationToTimespec(timeout.remainingTimeAsDuration());
         mach_timespec_t ts;
-        ts.tv_nsec = ((timeout % 1000) * 1000) * 1000;
-        ts.tv_sec = (timeout / 1000);
+        ts.tv_nsec = tv.tv_nsec;
+        ts.tv_sec = tv.tv_sec;
         r = semaphore_timedwait(mach_semaphore, ts);
     }
     return (r == KERN_SUCCESS);
diff --git a/src/corelib/thread/qmutex_p.h b/src/corelib/thread/qmutex_p.h
index 21f3fb0d..a16d5082 100644
--- a/src/corelib/thread/qmutex_p.h
+++ b/src/corelib/thread/qmutex_p.h
@@ -23,13 +23,12 @@
 #include <QtCore/qatomic.h>
 #include <QtCore/qdeadlinetimer.h>
 
-#if defined(Q_OS_MAC)
+#include "qplatformdefs.h" // _POSIX_VERSION
+
+#if defined(Q_OS_DARWIN)
 # include <mach/semaphore.h>
 #elif defined(Q_OS_UNIX)
-# if _POSIX_VERSION-0 >= 200112L || _XOPEN_VERSION-0 >= 600
 #  include <semaphore.h>
-#  define QT_UNIX_SEMAPHORE
-# endif
 #endif
 
 struct timespec;
@@ -44,7 +43,7 @@ public:
     ~QMutexPrivate();
     QMutexPrivate();
 
-    bool wait(int timeout = -1);
+    bool wait(QDeadlineTimer timeout = QDeadlineTimer::Forever);
     void wakeUp() noexcept;
 
     // Control the lifetime of the privates
@@ -83,27 +82,15 @@ public:
     void derefWaiters(int value) noexcept;
 
     //platform specific stuff
-#if defined(Q_OS_MAC)
+#if defined(Q_OS_DARWIN)
     semaphore_t mach_semaphore;
-#elif defined(QT_UNIX_SEMAPHORE)
-    sem_t semaphore;
 #elif defined(Q_OS_UNIX)
-    bool wakeup;
-    pthread_mutex_t mutex;
-    pthread_cond_t cond;
+    sem_t semaphore;
 #elif defined(Q_OS_WIN)
     Qt::HANDLE event;
 #endif
 };
 
-
-#ifdef Q_OS_UNIX
-// helper functions for qmutex_unix.cpp and qwaitcondition_unix.cpp
-// they are in qwaitcondition_unix.cpp actually
-void qt_initialize_pthread_cond(pthread_cond_t *cond, const char *where);
-void qt_abstime_for_timeout(struct timespec *ts, QDeadlineTimer deadline);
-#endif
-
 QT_END_NAMESPACE
 
 #endif // QMUTEX_P_H
diff --git a/src/corelib/thread/qmutex_unix.cpp b/src/corelib/thread/qmutex_unix.cpp
index f665f192..79c479a3 100644
--- a/src/corelib/thread/qmutex_unix.cpp
+++ b/src/corelib/thread/qmutex_unix.cpp
@@ -19,105 +19,48 @@
 
 QT_BEGIN_NAMESPACE
 
-static void report_error(int code, const char *where, const char *what)
+static void qt_report_error(int code, const char *where, const char *what)
 {
     if (code != 0)
         qErrnoWarning(code, "%s: %s failure", where, what);
 }
 
-#ifdef QT_UNIX_SEMAPHORE
-
 QMutexPrivate::QMutexPrivate()
 {
-    report_error(sem_init(&semaphore, 0, 0), "QMutex", "sem_init");
+    qt_report_error(sem_init(&semaphore, 0, 0), "QMutex", "sem_init");
 }
 
 QMutexPrivate::~QMutexPrivate()
 {
 
-    report_error(sem_destroy(&semaphore), "QMutex", "sem_destroy");
+    qt_report_error(sem_destroy(&semaphore), "QMutex", "sem_destroy");
 }
 
-bool QMutexPrivate::wait(int timeout)
+bool QMutexPrivate::wait(QDeadlineTimer timeout)
 {
     int errorCode;
-    if (timeout < 0) {
+    if (timeout.isForever()) {
         do {
             errorCode = sem_wait(&semaphore);
         } while (errorCode && errno == EINTR);
-        report_error(errorCode, "QMutex::lock()", "sem_wait");
+        qt_report_error(errorCode, "QMutex::lock()", "sem_wait");
     } else {
-        timespec ts;
-        report_error(clock_gettime(CLOCK_REALTIME, &ts), "QMutex::lock()", "clock_gettime");
-        ts.tv_sec += timeout / 1000;
-        ts.tv_nsec += timeout % 1000 * Q_UINT64_C(1000) * 1000;
-        normalizedTimespec(ts);
         do {
+            auto tp = timeout.deadline<std::chrono::system_clock>();
+            timespec ts = durationToTimespec(tp.time_since_epoch());
             errorCode = sem_timedwait(&semaphore, &ts);
         } while (errorCode && errno == EINTR);
 
         if (errorCode && errno == ETIMEDOUT)
             return false;
-        report_error(errorCode, "QMutex::lock()", "sem_timedwait");
+        qt_report_error(errorCode, "QMutex::lock()", "sem_timedwait");
     }
     return true;
 }
 
 void QMutexPrivate::wakeUp() noexcept
 {
-    report_error(sem_post(&semaphore), "QMutex::unlock", "sem_post");
+    qt_report_error(sem_post(&semaphore), "QMutex::unlock", "sem_post");
 }
 
-#else // QT_UNIX_SEMAPHORE
-
-QMutexPrivate::QMutexPrivate()
-    : wakeup(false)
-{
-    report_error(pthread_mutex_init(&mutex, NULL), "QMutex", "mutex init");
-    qt_initialize_pthread_cond(&cond, "QMutex");
-}
-
-QMutexPrivate::~QMutexPrivate()
-{
-    report_error(pthread_cond_destroy(&cond), "QMutex", "cv destroy");
-    report_error(pthread_mutex_destroy(&mutex), "QMutex", "mutex destroy");
-}
-
-bool QMutexPrivate::wait(int timeout)
-{
-    report_error(pthread_mutex_lock(&mutex), "QMutex::lock", "mutex lock");
-    int errorCode = 0;
-    while (!wakeup) {
-        if (timeout < 0) {
-            errorCode = pthread_cond_wait(&cond, &mutex);
-        } else {
-            timespec ti;
-            qt_abstime_for_timeout(&ti, QDeadlineTimer(timeout));
-            errorCode = pthread_cond_timedwait(&cond, &mutex, &ti);
-        }
-        if (errorCode) {
-            if (errorCode == ETIMEDOUT) {
-                if (wakeup)
-                    errorCode = 0;
-                break;
-            }
-            report_error(errorCode, "QMutex::lock()", "cv wait");
-        }
-    }
-    bool ret = wakeup;
-    wakeup = false;
-    report_error(pthread_mutex_unlock(&mutex), "QMutex::lock", "mutex unlock");
-    return ret;
-}
-
-void QMutexPrivate::wakeUp() noexcept
-{
-    report_error(pthread_mutex_lock(&mutex), "QMutex::unlock", "mutex lock");
-    wakeup = true;
-    report_error(pthread_cond_signal(&cond), "QMutex::unlock", "cv signal");
-    report_error(pthread_mutex_unlock(&mutex), "QMutex::unlock", "mutex unlock");
-}
-
-#endif
-
 QT_END_NAMESPACE
diff --git a/src/corelib/thread/qmutex_win.cpp b/src/corelib/thread/qmutex_win.cpp
index 87d0289f..9186f89a 100644
--- a/src/corelib/thread/qmutex_win.cpp
+++ b/src/corelib/thread/qmutex_win.cpp
@@ -19,9 +19,9 @@ QMutexPrivate::QMutexPrivate()
 QMutexPrivate::~QMutexPrivate()
 { CloseHandle(event); }
 
-bool QMutexPrivate::wait(int timeout)
+bool QMutexPrivate::wait(QDeadlineTimer timeout)
 {
-    return (WaitForSingleObjectEx(event, timeout < 0 ? INFINITE : timeout, FALSE) == WAIT_OBJECT_0);
+    return (WaitForSingleObjectEx(event, timeout.isForever() ? INFINITE : timeout.remainingTime(), FALSE) == WAIT_OBJECT_0);
 }
 
 void QMutexPrivate::wakeUp() noexcept
diff --git a/src/corelib/thread/qorderedmutexlocker_p.h b/src/corelib/thread/qorderedmutexlocker_p.h
index 68c33e49..fb2e223e 100644
--- a/src/corelib/thread/qorderedmutexlocker_p.h
+++ b/src/corelib/thread/qorderedmutexlocker_p.h
@@ -31,6 +31,7 @@ QT_BEGIN_NAMESPACE
 class QOrderedMutexLocker
 {
 public:
+    Q_NODISCARD_CTOR
     QOrderedMutexLocker(QBasicMutex *m1, QBasicMutex *m2)
         : mtx1((m1 == m2) ? m1 : (std::less<QBasicMutex *>()(m1, m2) ? m1 : m2)),
           mtx2((m1 == m2) ?  nullptr : (std::less<QBasicMutex *>()(m1, m2) ? m2 : m1)),
@@ -50,6 +51,7 @@ public:
 
     QT_MOVE_ASSIGNMENT_OPERATOR_IMPL_VIA_MOVE_AND_SWAP(QOrderedMutexLocker)
 
+    Q_NODISCARD_CTOR
     QOrderedMutexLocker(QOrderedMutexLocker &&other) noexcept
         : mtx1(std::exchange(other.mtx1, nullptr))
         , mtx2(std::exchange(other.mtx2, nullptr))
@@ -122,7 +124,9 @@ class QOrderedMutexLocker
 {
 public:
     Q_DISABLE_COPY(QOrderedMutexLocker)
+    Q_NODISCARD_CTOR
     QOrderedMutexLocker(QBasicMutex *, QBasicMutex *) {}
+    Q_NODISCARD_CTOR
     QOrderedMutexLocker(QOrderedMutexLocker &&) = default;
     QOrderedMutexLocker& operator=(QOrderedMutexLocker &&other) = default;
     ~QOrderedMutexLocker() {}
diff --git a/src/corelib/thread/qpromise.h b/src/corelib/thread/qpromise.h
index 5620811b..c2b6c119 100644
--- a/src/corelib/thread/qpromise.h
+++ b/src/corelib/thread/qpromise.h
@@ -46,11 +46,23 @@ public:
 
     // Core QPromise APIs
     QFuture<T> future() const { return d.future(); }
-    template<typename U, typename = QtPrivate::EnableIfSameOrConvertible<U, T>>
+    template<typename...Args, std::enable_if_t<std::is_constructible_v<T, Args...>, bool> = true>
+    bool emplaceResultAt(int index, Args&&...args)
+    {
+        return d.reportAndEmplaceResult(index, std::forward<Args>(args)...);
+    }
+    template<typename...Args, std::enable_if_t<std::is_constructible_v<T, Args...>, bool> = true>
+    bool emplaceResult(Args&&...args)
+    {
+        return d.reportAndEmplaceResult(-1, std::forward<Args>(args)...);
+    }
+    template<typename U = T, typename = QtPrivate::EnableIfSameOrConvertible<U, T>>
     bool addResult(U &&result, int index = -1)
     {
-        return d.reportResult(std::forward<U>(result), index);
+        return d.reportAndEmplaceResult(index, std::forward<U>(result));
     }
+    bool addResults(const QList<T> &result)
+    { return d.reportResults(result); }
 #ifndef QT_NO_EXCEPTIONS
     void setException(const QException &e) { d.reportException(e); }
 #if QT_VERSION < QT_VERSION_CHECK(7, 0, 0)
diff --git a/src/corelib/thread/qpromise.qdoc b/src/corelib/thread/qpromise.qdoc
index a3af927e..aaef6121 100644
--- a/src/corelib/thread/qpromise.qdoc
+++ b/src/corelib/thread/qpromise.qdoc
@@ -91,15 +91,38 @@
 /*! \fn template <typename T> bool QPromise<T>::addResult(const T &result, int index = -1)
     \fn template <typename T> bool QPromise<T>::addResult(T &&result, int index = -1)
 
-    Adds \a result to the internal result collection at \a index position. If
-    index is unspecified, \a result is added to the end of the collection.
+    Same as
+    \code
+    emplaceResultAt(index, result);            // first overload
+    emplaceResultAt(index, std::move(result)); // second overload
+    \endcode
+    or, if \c{index == -1} (the default)
+    \code
+    emplaceResult(result);            // first overload
+    emplaceResult(std::move(result)); // second overload
+    \endcode
 
-    Returns \c true when \a result is added to the collection.
+    \sa emplaceResultAt(), emplaceResult(), addResults()
+*/
+
+/*!
+    \fn template <typename T> template <typename...Args, std::enable_if_t<std::is_constructible_v<T, Args...>, bool> = true> QPromise<T>::emplaceResultAt(int index, Args&&...args)
+    \fn template <typename T> template <typename...Args, std::enable_if_t<std::is_constructible_v<T, Args...>, bool> = true> QPromise<T>::emplaceResult(Args&&...args)
+    \since 6.6
+
+    Adds a result constructed from \a args... to the internal result collection
+    at \a index position (emplaceResultAt()) or the end of of the collection
+    (emplaceResult()).
+
+    Returns \c true when the result was added to the collection.
 
     Returns \c false when this promise is in canceled or finished state or when
-    \a result is rejected. addResult() rejects \a result if there's already
+    the result was rejected. addResult() rejects to add a result if there's already
     another result in the collection stored at the same index.
 
+    These functions only participate in overload resolutions if \c T is
+    constructible from \a args....
+
     You can get a result at a specific index by calling QFuture::resultAt().
 
     \note It is possible to specify an arbitrary index and request result at
@@ -107,6 +130,29 @@
     For instance, iterative approaches that use QFuture::resultCount() or
     QFuture::const_iterator. In order to get all available results without
     thinking if there are index gaps or not, use QFuture::results().
+
+    \sa addResult(), addResults()
+*/
+
+/*!
+    \fn template <typename T> bool QPromise<T>::addResults(const QList<T> &results)
+    \since 6.6
+
+    Adds \a results at the end of the internal result collection.
+
+    Returns \c true when \a results are added to the collection.
+
+    Returns \c false when this promise is in canceled or finished state.
+
+    This is more efficient than looping over addResult(), because associated
+    futures will be notified only once per addResults() call, instead of once
+    per element contained in \a results, as would be the case with individual
+    addResult() calls. But if the calculation of each element takes time, then
+    the code on the receiving end (future) cannot make progress until all
+    results are reported, so use this function only if the calculation of
+    consecutive elements is relatively fast.
+
+    \sa addResult()
 */
 
 /*! \fn template<typename T> void QPromise<T>::setException(const QException &e)
diff --git a/src/corelib/thread/qreadwritelock.cpp b/src/corelib/thread/qreadwritelock.cpp
index 12a9b373..3a9fb9d4 100644
--- a/src/corelib/thread/qreadwritelock.cpp
+++ b/src/corelib/thread/qreadwritelock.cpp
@@ -31,7 +31,7 @@ QT_BEGIN_NAMESPACE
 using namespace QReadWriteLockStates;
 namespace {
 
-using ms = std::chrono::milliseconds;
+using steady_clock = std::chrono::steady_clock;
 
 const auto dummyLockedForRead = reinterpret_cast<QReadWriteLockPrivate *>(quintptr(StateLockedForRead));
 const auto dummyLockedForWrite = reinterpret_cast<QReadWriteLockPrivate *>(quintptr(StateLockedForWrite));
@@ -40,9 +40,9 @@ inline bool isUncontendedLocked(const QReadWriteLockPrivate *d)
 }
 
 static bool contendedTryLockForRead(QAtomicPointer<QReadWriteLockPrivate> &d_ptr,
-                                    int timeout, QReadWriteLockPrivate *d);
+                                    QDeadlineTimer timeout, QReadWriteLockPrivate *d);
 static bool contendedTryLockForWrite(QAtomicPointer<QReadWriteLockPrivate> &d_ptr,
-                                     int timeout, QReadWriteLockPrivate *d);
+                                     QDeadlineTimer timeout, QReadWriteLockPrivate *d);
 
 /*! \class QReadWriteLock
     \inmodule QtCore
@@ -101,6 +101,7 @@ static bool contendedTryLockForWrite(QAtomicPointer<QReadWriteLockPrivate> &d_pt
 */
 
 /*!
+    \fn QReadWriteLock::QReadWriteLock(RecursionMode recursionMode)
     \since 4.4
 
     Constructs a QReadWriteLock object in the given \a recursionMode.
@@ -109,21 +110,22 @@ static bool contendedTryLockForWrite(QAtomicPointer<QReadWriteLockPrivate> &d_pt
 
     \sa lockForRead(), lockForWrite(), RecursionMode
 */
-QReadWriteLock::QReadWriteLock(RecursionMode recursionMode)
-    : d_ptr(recursionMode == Recursive ? new QReadWriteLockPrivate(true) : nullptr)
+QReadWriteLockPrivate *QReadWriteLock::initRecursive()
 {
-    Q_ASSERT_X(!(quintptr(d_ptr.loadRelaxed()) & StateMask), "QReadWriteLock::QReadWriteLock", "bad d_ptr alignment");
+    auto d = new QReadWriteLockPrivate(true);
+    Q_ASSERT_X(!(quintptr(d) & StateMask), "QReadWriteLock::QReadWriteLock", "bad d_ptr alignment");
+    return d;
 }
 
 /*!
+    \fn QReadWriteLock::~QReadWriteLock()
     Destroys the QReadWriteLock object.
 
     \warning Destroying a read-write lock that is in use may result
     in undefined behavior.
 */
-QReadWriteLock::~QReadWriteLock()
+void QReadWriteLock::destroyRecursive(QReadWriteLockPrivate *d)
 {
-    auto d = d_ptr.loadAcquire();
     if (isUncontendedLocked(d)) {
         qWarning("QReadWriteLock: destroying locked QReadWriteLock");
         return;
@@ -132,6 +134,7 @@ QReadWriteLock::~QReadWriteLock()
 }
 
 /*!
+    \fn QReadWriteLock::lockForRead()
     Locks the lock for reading. This function will block the current
     thread if another thread has locked for writing.
 
@@ -140,33 +143,9 @@ QReadWriteLock::~QReadWriteLock()
 
     \sa unlock(), lockForWrite(), tryLockForRead()
 */
-void QReadWriteLock::lockForRead()
-{
-    tryLockForRead(-1);
-}
 
 /*!
-    Attempts to lock for reading. If the lock was obtained, this
-    function returns \c true, otherwise it returns \c false instead of
-    waiting for the lock to become available, i.e. it does not block.
-
-    The lock attempt will fail if another thread has locked for
-    writing.
-
-    If the lock was obtained, the lock must be unlocked with unlock()
-    before another thread can successfully lock it for writing.
-
-    It is not possible to lock for read if the thread already has
-    locked for write.
-
-    \sa unlock(), lockForRead()
-*/
-bool QReadWriteLock::tryLockForRead()
-{
-    return tryLockForRead(0);
-}
-
-/*! \overload
+    \fn bool QReadWriteLock::tryLockForRead(int timeout)
 
     Attempts to lock for reading. This function returns \c true if the
     lock was obtained; otherwise it returns \c false. If another thread
@@ -185,17 +164,35 @@ bool QReadWriteLock::tryLockForRead()
 
     \sa unlock(), lockForRead()
 */
-bool QReadWriteLock::tryLockForRead(int timeout)
+
+/*!
+    \overload
+    \since 6.6
+
+    Attempts to lock for reading. This function returns \c true if the lock was
+    obtained; otherwise it returns \c false. If another thread has locked for
+    writing, this function will wait until \a timeout expires for the lock to
+    become available.
+
+    If the lock was obtained, the lock must be unlocked with unlock()
+    before another thread can successfully lock it for writing.
+
+    It is not possible to lock for read if the thread already has
+    locked for write.
+
+    \sa unlock(), lockForRead()
+*/
+bool QReadWriteLock::tryLockForRead(QDeadlineTimer timeout)
 {
     // Fast case: non contended:
-    QReadWriteLockPrivate *d;
-    if (d_ptr.testAndSetAcquire(nullptr, dummyLockedForRead, d))
+    QReadWriteLockPrivate *d = d_ptr.loadRelaxed();
+    if (d == nullptr && d_ptr.testAndSetAcquire(nullptr, dummyLockedForRead, d))
         return true;
     return contendedTryLockForRead(d_ptr, timeout, d);
 }
 
 Q_NEVER_INLINE static bool contendedTryLockForRead(QAtomicPointer<QReadWriteLockPrivate> &d_ptr,
-                                                   int timeout, QReadWriteLockPrivate *d)
+                                                   QDeadlineTimer timeout, QReadWriteLockPrivate *d)
 {
     while (true) {
         if (d == nullptr) {
@@ -215,7 +212,7 @@ Q_NEVER_INLINE static bool contendedTryLockForRead(QAtomicPointer<QReadWriteLock
         }
 
         if (d == dummyLockedForWrite) {
-            if (!timeout)
+            if (timeout.hasExpired())
                 return false;
 
             // locked for write, assign a d_ptr and wait.
@@ -250,6 +247,7 @@ Q_NEVER_INLINE static bool contendedTryLockForRead(QAtomicPointer<QReadWriteLock
 }
 
 /*!
+    \fn QReadWriteLock::lockForWrite()
     Locks the lock for writing. This function will block the current
     thread if another thread (including the current) has locked for
     reading or writing (unless the lock has been created using the
@@ -260,32 +258,9 @@ Q_NEVER_INLINE static bool contendedTryLockForRead(QAtomicPointer<QReadWriteLock
 
     \sa unlock(), lockForRead(), tryLockForWrite()
 */
-void QReadWriteLock::lockForWrite()
-{
-    tryLockForWrite(-1);
-}
 
 /*!
-    Attempts to lock for writing. If the lock was obtained, this
-    function returns \c true; otherwise, it returns \c false immediately.
-
-    The lock attempt will fail if another thread has locked for
-    reading or writing.
-
-    If the lock was obtained, the lock must be unlocked with unlock()
-    before another thread can successfully lock it.
-
-    It is not possible to lock for write if the thread already has
-    locked for read.
-
-    \sa unlock(), lockForWrite()
-*/
-bool QReadWriteLock::tryLockForWrite()
-{
-    return tryLockForWrite(0);
-}
-
-/*! \overload
+    \fn QReadWriteLock::tryLockForWrite(int timeout)
 
     Attempts to lock for writing. This function returns \c true if the
     lock was obtained; otherwise it returns \c false. If another thread
@@ -304,17 +279,35 @@ bool QReadWriteLock::tryLockForWrite()
 
     \sa unlock(), lockForWrite()
 */
-bool QReadWriteLock::tryLockForWrite(int timeout)
+
+/*!
+    \overload
+    \since 6.6
+
+    Attempts to lock for writing. This function returns \c true if the lock was
+    obtained; otherwise it returns \c false. If another thread has locked for
+    reading or writing, this function will wait until \a timeout expires for
+    the lock to become available.
+
+    If the lock was obtained, the lock must be unlocked with unlock()
+    before another thread can successfully lock it.
+
+    It is not possible to lock for write if the thread already has
+    locked for read.
+
+    \sa unlock(), lockForWrite()
+*/
+bool QReadWriteLock::tryLockForWrite(QDeadlineTimer timeout)
 {
     // Fast case: non contended:
-    QReadWriteLockPrivate *d;
-    if (d_ptr.testAndSetAcquire(nullptr, dummyLockedForWrite, d))
+    QReadWriteLockPrivate *d = d_ptr.loadRelaxed();
+    if (d == nullptr && d_ptr.testAndSetAcquire(nullptr, dummyLockedForWrite, d))
         return true;
     return contendedTryLockForWrite(d_ptr, timeout, d);
 }
 
 Q_NEVER_INLINE static bool contendedTryLockForWrite(QAtomicPointer<QReadWriteLockPrivate> &d_ptr,
-                                                    int timeout, QReadWriteLockPrivate *d)
+                                                    QDeadlineTimer timeout, QReadWriteLockPrivate *d)
 {
     while (true) {
         if (d == nullptr) {
@@ -324,7 +317,7 @@ Q_NEVER_INLINE static bool contendedTryLockForWrite(QAtomicPointer<QReadWriteLoc
         }
 
         if (isUncontendedLocked(d)) {
-            if (!timeout)
+            if (timeout.hasExpired())
                 return false;
 
             // locked for either read or write, assign a d_ptr and wait.
@@ -418,23 +411,16 @@ void QReadWriteLock::unlock()
     }
 }
 
-bool QReadWriteLockPrivate::lockForRead(std::unique_lock<QtPrivate::mutex> &lock, int timeout)
+bool QReadWriteLockPrivate::lockForRead(std::unique_lock<QtPrivate::mutex> &lock, QDeadlineTimer timeout)
 {
     Q_ASSERT(!mutex.try_lock()); // mutex must be locked when entering this function
 
-    QElapsedTimer t;
-    if (timeout > 0)
-        t.start();
-
     while (waitingWriters || writerCount) {
-        if (timeout == 0)
+        if (timeout.hasExpired())
             return false;
-        if (timeout > 0) {
-            auto elapsed = t.elapsed();
-            if (elapsed > timeout)
-                return false;
+        if (!timeout.isForever()) {
             waitingReaders++;
-            readerCond.wait_for(lock, ms{timeout - elapsed});
+            readerCond.wait_until(lock, timeout.deadline<steady_clock>());
         } else {
             waitingReaders++;
             readerCond.wait(lock);
@@ -446,29 +432,22 @@ bool QReadWriteLockPrivate::lockForRead(std::unique_lock<QtPrivate::mutex> &lock
     return true;
 }
 
-bool QReadWriteLockPrivate::lockForWrite(std::unique_lock<QtPrivate::mutex> &lock, int timeout)
+bool QReadWriteLockPrivate::lockForWrite(std::unique_lock<QtPrivate::mutex> &lock, QDeadlineTimer timeout)
 {
     Q_ASSERT(!mutex.try_lock()); // mutex must be locked when entering this function
 
-    QElapsedTimer t;
-    if (timeout > 0)
-        t.start();
-
     while (readerCount || writerCount) {
-        if (timeout == 0)
-            return false;
-        if (timeout > 0) {
-            auto elapsed = t.elapsed();
-            if (elapsed > timeout) {
-                if (waitingReaders && !waitingWriters && !writerCount) {
-                    // We timed out and now there is no more writers or waiting writers, but some
-                    // readers were queued (probably because of us). Wake the waiting readers.
-                    readerCond.notify_all();
-                }
-                return false;
+        if (timeout.hasExpired()) {
+            if (waitingReaders && !waitingWriters && !writerCount) {
+                // We timed out and now there is no more writers or waiting writers, but some
+                // readers were queued (probably because of us). Wake the waiting readers.
+                readerCond.notify_all();
             }
+            return false;
+        }
+        if (!timeout.isForever()) {
             waitingWriters++;
-            writerCond.wait_for(lock, ms{timeout - elapsed});
+            writerCond.wait_until(lock, timeout.deadline<steady_clock>());
         } else {
             waitingWriters++;
             writerCond.wait(lock);
@@ -496,7 +475,7 @@ static auto handleEquals(Qt::HANDLE handle)
     return [handle](QReadWriteLockPrivate::Reader reader) { return reader.handle == handle; };
 }
 
-bool QReadWriteLockPrivate::recursiveLockForRead(int timeout)
+bool QReadWriteLockPrivate::recursiveLockForRead(QDeadlineTimer timeout)
 {
     Q_ASSERT(recursive);
     auto lock = qt_unique_lock(mutex);
@@ -518,7 +497,7 @@ bool QReadWriteLockPrivate::recursiveLockForRead(int timeout)
     return true;
 }
 
-bool QReadWriteLockPrivate::recursiveLockForWrite(int timeout)
+bool QReadWriteLockPrivate::recursiveLockForWrite(QDeadlineTimer timeout)
 {
     Q_ASSERT(recursive);
     auto lock = qt_unique_lock(mutex);
diff --git a/src/corelib/thread/qreadwritelock.h b/src/corelib/thread/qreadwritelock.h
index 60078b8f..6ca9be44 100644
--- a/src/corelib/thread/qreadwritelock.h
+++ b/src/corelib/thread/qreadwritelock.h
@@ -5,10 +5,10 @@
 #define QREADWRITELOCK_H
 
 #include <QtCore/qglobal.h>
+#include <QtCore/qdeadlinetimer.h>
 
 QT_BEGIN_NAMESPACE
 
-
 #if QT_CONFIG(thread)
 
 class QReadWriteLockPrivate;
@@ -18,16 +18,28 @@ class Q_CORE_EXPORT QReadWriteLock
 public:
     enum RecursionMode { NonRecursive, Recursive };
 
+    QT_CORE_INLINE_SINCE(6, 6)
     explicit QReadWriteLock(RecursionMode recursionMode = NonRecursive);
+    QT_CORE_INLINE_SINCE(6, 6)
     ~QReadWriteLock();
 
+    QT_CORE_INLINE_SINCE(6, 6)
     void lockForRead();
+#if QT_CORE_REMOVED_SINCE(6, 6)
     bool tryLockForRead();
+#endif
+    QT_CORE_INLINE_SINCE(6, 6)
     bool tryLockForRead(int timeout);
+    bool tryLockForRead(QDeadlineTimer timeout = {});
 
+    QT_CORE_INLINE_SINCE(6, 6)
     void lockForWrite();
+#if QT_CORE_REMOVED_SINCE(6, 6)
     bool tryLockForWrite();
+#endif
+    QT_CORE_INLINE_SINCE(6, 6)
     bool tryLockForWrite(int timeout);
+    bool tryLockForWrite(QDeadlineTimer timeout = {});
 
     void unlock();
 
@@ -35,16 +47,52 @@ private:
     Q_DISABLE_COPY(QReadWriteLock)
     QAtomicPointer<QReadWriteLockPrivate> d_ptr;
     friend class QReadWriteLockPrivate;
+    static QReadWriteLockPrivate *initRecursive();
+    static void destroyRecursive(QReadWriteLockPrivate *);
 };
 
+#if QT_CORE_INLINE_IMPL_SINCE(6, 6)
+QReadWriteLock::QReadWriteLock(RecursionMode recursionMode)
+    : d_ptr(recursionMode == Recursive ? initRecursive() : nullptr)
+{
+}
+
+QReadWriteLock::~QReadWriteLock()
+{
+    if (auto d = d_ptr.loadAcquire())
+        destroyRecursive(d);
+}
+
+void QReadWriteLock::lockForRead()
+{
+    tryLockForRead(QDeadlineTimer(QDeadlineTimer::Forever));
+}
+
+bool QReadWriteLock::tryLockForRead(int timeout)
+{
+    return tryLockForRead(QDeadlineTimer(timeout));
+}
+
+void QReadWriteLock::lockForWrite()
+{
+    tryLockForWrite(QDeadlineTimer(QDeadlineTimer::Forever));
+}
+
+bool QReadWriteLock::tryLockForWrite(int timeout)
+{
+    return tryLockForWrite(QDeadlineTimer(timeout));
+}
+#endif // inline since 6.6
+
 #if defined(Q_CC_MSVC)
 #pragma warning( push )
 #pragma warning( disable : 4312 ) // ignoring the warning from /Wp64
 #endif
 
-class Q_CORE_EXPORT QReadLocker
+class QT6_ONLY(Q_CORE_EXPORT) QReadLocker
 {
 public:
+    Q_NODISCARD_CTOR
     inline QReadLocker(QReadWriteLock *readWriteLock);
 
     inline ~QReadLocker()
@@ -86,9 +134,10 @@ inline QReadLocker::QReadLocker(QReadWriteLock *areadWriteLock)
     relock();
 }
 
-class Q_CORE_EXPORT QWriteLocker
+class QT6_ONLY(Q_CORE_EXPORT) QWriteLocker
 {
 public:
+    Q_NODISCARD_CTOR
     inline QWriteLocker(QReadWriteLock *readWriteLock);
 
     inline ~QWriteLocker()
@@ -137,7 +186,7 @@ inline QWriteLocker::QWriteLocker(QReadWriteLock *areadWriteLock)
 
 #else // QT_CONFIG(thread)
 
-class Q_CORE_EXPORT QReadWriteLock
+class QT6_ONLY(Q_CORE_EXPORT) QReadWriteLock
 {
 public:
     enum RecursionMode { NonRecursive, Recursive };
@@ -146,10 +195,12 @@ public:
 
     void lockForRead() noexcept { }
     bool tryLockForRead() noexcept { return true; }
+    bool tryLockForRead(QDeadlineTimer) noexcept { return true; }
     bool tryLockForRead(int timeout) noexcept { Q_UNUSED(timeout); return true; }
 
     void lockForWrite() noexcept { }
     bool tryLockForWrite() noexcept { return true; }
+    bool tryLockForWrite(QDeadlineTimer) noexcept { return true; }
     bool tryLockForWrite(int timeout) noexcept { Q_UNUSED(timeout); return true; }
 
     void unlock() noexcept { }
@@ -158,9 +209,10 @@ private:
     Q_DISABLE_COPY(QReadWriteLock)
 };
 
-class Q_CORE_EXPORT QReadLocker
+class QT6_ONLY(Q_CORE_EXPORT) QReadLocker
 {
 public:
+    Q_NODISCARD_CTOR
     inline explicit QReadLocker(QReadWriteLock *) noexcept { }
     inline ~QReadLocker() noexcept { }
 
@@ -172,9 +224,10 @@ private:
     Q_DISABLE_COPY(QReadLocker)
 };
 
-class Q_CORE_EXPORT QWriteLocker
+class QT6_ONLY(Q_CORE_EXPORT) QWriteLocker
 {
 public:
+    Q_NODISCARD_CTOR
     inline explicit QWriteLocker(QReadWriteLock *) noexcept { }
     inline ~QWriteLocker() noexcept { }
 
diff --git a/src/corelib/thread/qreadwritelock_p.h b/src/corelib/thread/qreadwritelock_p.h
index e8379fcb..d1f887eb 100644
--- a/src/corelib/thread/qreadwritelock_p.h
+++ b/src/corelib/thread/qreadwritelock_p.h
@@ -55,8 +55,8 @@ public:
     const bool recursive;
 
     //Called with the mutex locked
-    bool lockForWrite(std::unique_lock<QtPrivate::mutex> &lock, int timeout);
-    bool lockForRead(std::unique_lock<QtPrivate::mutex> &lock, int timeout);
+    bool lockForWrite(std::unique_lock<QtPrivate::mutex> &lock, QDeadlineTimer timeout);
+    bool lockForRead(std::unique_lock<QtPrivate::mutex> &lock, QDeadlineTimer timeout);
     void unlock();
 
     //memory management
@@ -75,8 +75,8 @@ public:
     QVarLengthArray<Reader, 16> currentReaders;
 
     // called with the mutex unlocked
-    bool recursiveLockForWrite(int timeout);
-    bool recursiveLockForRead(int timeout);
+    bool recursiveLockForWrite(QDeadlineTimer timeout);
+    bool recursiveLockForRead(QDeadlineTimer timeout);
     void recursiveUnlock();
 
     static QReadWriteLockStates::StateForWaitCondition
diff --git a/src/corelib/thread/qresultstore.h b/src/corelib/thread/qresultstore.h
index d19fc195..30ce1fe9 100644
--- a/src/corelib/thread/qresultstore.h
+++ b/src/corelib/thread/qresultstore.h
@@ -134,6 +134,14 @@ protected:
     }
 
 public:
+    template <typename T, typename...Args>
+    int emplaceResult(int index, Args&&...args)
+    {
+        if (containsValidResultItem(index)) // reject if already present
+            return -1;
+        return addResult(index, static_cast<void *>(new T(std::forward<Args>(args)...)));
+    }
+
     template <typename T>
     int addResult(int index, const T *result)
     {
@@ -151,10 +159,7 @@ public:
     {
         static_assert(!std::is_reference_v<T>, "trying to move from an lvalue!");
 
-        if (containsValidResultItem(index)) // reject if already present
-            return -1;
-
-        return addResult(index, static_cast<void *>(new T(std::move_if_noexcept(result))));
+        return emplaceResult<std::remove_cv_t<T>>(index, std::forward<T>(result));
     }
 
     template<typename T>
diff --git a/src/corelib/thread/qrunnable.cpp b/src/corelib/thread/qrunnable.cpp
index 5bb354cb..bcb19d7a 100644
--- a/src/corelib/thread/qrunnable.cpp
+++ b/src/corelib/thread/qrunnable.cpp
@@ -3,12 +3,35 @@
 
 #include "qrunnable.h"
 
+#include <QtCore/qlogging.h>
+
 QT_BEGIN_NAMESPACE
 
 QRunnable::~QRunnable()
 {
 }
 
+/*!
+    \internal
+    Prints a warning and returns nullptr.
+*/
+QRunnable *QRunnable::warnNullCallable()
+{
+    qWarning("Trying to create null QRunnable. This may stop working.");
+    return nullptr;
+}
+
+
+QRunnable::QGenericRunnable::~QGenericRunnable()
+{
+    runHelper->destroy();
+}
+
+void QRunnable::QGenericRunnable::run()
+{
+    runHelper->run();
+}
+
 /*!
     \class QRunnable
     \inmodule QtCore
@@ -77,31 +100,20 @@ QRunnable::~QRunnable()
     \sa autoDelete(), QThreadPool
 */
 
-class FunctionRunnable : public QRunnable
-{
-    std::function<void()> m_functionToRun;
-public:
-    FunctionRunnable(std::function<void()> functionToRun) : m_functionToRun(std::move(functionToRun))
-    {
-    }
-    void run() override
-    {
-        m_functionToRun();
-    }
-};
-
 /*!
+    \fn template<typename Callable, if_callable<Callable>> QRunnable *QRunnable::create(Callable &&callableToRun);
     \since 5.15
 
-    Creates a QRunnable that calls \a functionToRun in run().
+    Creates a QRunnable that calls \a callableToRun in run().
 
     Auto-deletion is enabled by default.
 
+    \note This function participates in overload resolution only if \c Callable
+    is a function or function object which can be called with zero arguments.
+
+    \note In Qt versions prior to 6.6, this method took copyable functions only.
+
     \sa run(), autoDelete()
 */
-QRunnable *QRunnable::create(std::function<void()> functionToRun)
-{
-    return new FunctionRunnable(std::move(functionToRun));
-}
 
 QT_END_NAMESPACE
diff --git a/src/corelib/thread/qrunnable.h b/src/corelib/thread/qrunnable.h
index c77f8eea..f0dd0a58 100644
--- a/src/corelib/thread/qrunnable.h
+++ b/src/corelib/thread/qrunnable.h
@@ -1,11 +1,16 @@
-// Copyright (C) 2016 The Qt Company Ltd.
+// Copyright (C) 2023 The Qt Company Ltd.
 // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
 
 #ifndef QRUNNABLE_H
 #define QRUNNABLE_H
 
-#include <QtCore/qglobal.h>
+#include <QtCore/qcompilerdetection.h>
+#include <QtCore/qfunctionaltools_impl.h>
+#include <QtCore/qtclasshelpermacros.h>
+#include <QtCore/qtcoreexports.h>
+
 #include <functional>
+#include <type_traits>
 
 QT_BEGIN_NAMESPACE
 
@@ -19,12 +24,114 @@ public:
 
     constexpr QRunnable() noexcept = default;
     virtual ~QRunnable();
+#if QT_CORE_REMOVED_SINCE(6, 6)
     static QRunnable *create(std::function<void()> functionToRun);
+#endif
+    template <typename Callable>
+    using if_callable = std::enable_if_t<std::is_invocable_r_v<void, Callable>, bool>;
+
+    template <typename Callable, if_callable<Callable> = true>
+    static QRunnable *create(Callable &&functionToRun);
+    static QRunnable *create(std::nullptr_t) = delete;
 
     bool autoDelete() const { return m_autoDelete; }
     void setAutoDelete(bool autoDelete) { m_autoDelete = autoDelete; }
+
+private:
+    static Q_DECL_COLD_FUNCTION QRunnable *warnNullCallable();
+    class QGenericRunnable;
 };
 
+class Q_CORE_EXPORT QRunnable::QGenericRunnable : public QRunnable
+{
+    // Type erasure, to only instantiate a non-virtual class per Callable:
+    class HelperBase
+    {
+    protected:
+        enum class Op {
+            Run,
+            Destroy,
+        };
+        using OpFn = void* (*)(Op, HelperBase *, void*);
+        OpFn fn;
+    protected:
+        constexpr explicit HelperBase(OpFn f) noexcept : fn(f) {}
+        ~HelperBase() = default;
+    public:
+        void run() { fn(Op::Run, this, nullptr); }
+        void destroy() { fn(Op::Destroy, this, nullptr); }
+    };
+
+    template <typename Callable>
+    class Helper : public HelperBase, private QtPrivate::CompactStorage<Callable>
+    {
+        using Storage = QtPrivate::CompactStorage<Callable>;
+        static void *impl(Op op, HelperBase *that, [[maybe_unused]] void *arg)
+        {
+            const auto _this = static_cast<Helper*>(that);
+            switch (op) {
+            case Op::Run:     _this->object()(); break;
+            case Op::Destroy: delete _this; break;
+            }
+            return nullptr;
+        }
+    public:
+        template <typename UniCallable>
+        explicit Helper(UniCallable &&functionToRun) noexcept
+            : HelperBase(&impl),
+              Storage{std::forward<UniCallable>(functionToRun)}
+        {
+        }
+    };
+
+    HelperBase *runHelper;
+public:
+    template <typename Callable, if_callable<Callable> = true>
+    explicit QGenericRunnable(Callable &&c)
+        : runHelper(new Helper<std::decay_t<Callable>>(std::forward<Callable>(c)))
+    {
+    }
+    ~QGenericRunnable() override;
+
+    void run() override;
+};
+
+namespace QtPrivate {
+
+template <typename T>
+constexpr inline bool is_function_pointer_v = std::conjunction_v<
+        std::is_pointer<T>,
+        std::is_function<std::remove_pointer_t<T>>
+    >;
+template <typename T>
+constexpr inline bool is_std_function_v = false;
+template <typename T>
+constexpr inline bool is_std_function_v<std::function<T>> = true;
+
+} // namespace QtPrivate
+
+template <typename Callable, QRunnable::if_callable<Callable>>
+QRunnable *QRunnable::create(Callable &&functionToRun)
+{
+    using F = std::decay_t<Callable>;
+    constexpr bool is_std_function = QtPrivate::is_std_function_v<F>;
+    constexpr bool is_function_pointer = QtPrivate::is_function_pointer_v<F>;
+    if constexpr (is_std_function || is_function_pointer) {
+        bool is_null;
+        if constexpr (is_std_function) {
+            is_null = !functionToRun;
+        } else if constexpr (is_function_pointer) {
+            // shut up warnings about functions always having a non-null address:
+            const void *functionPtr = reinterpret_cast<void *>(functionToRun);
+            is_null = !functionPtr;
+        }
+        if (is_null)
+            return warnNullCallable();
+    }
+
+    return new QGenericRunnable(std::forward<Callable>(functionToRun));
+}
+
 QT_END_NAMESPACE
 
 #endif
diff --git a/src/corelib/thread/qsemaphore.cpp b/src/corelib/thread/qsemaphore.cpp
index 803aa30b..a7b423e4 100644
--- a/src/corelib/thread/qsemaphore.cpp
+++ b/src/corelib/thread/qsemaphore.cpp
@@ -145,10 +145,10 @@ static QBasicAtomicInteger<quint32> *futexHigh32(QBasicAtomicInteger<quintptr> *
 }
 
 template <bool IsTimed> bool
-futexSemaphoreTryAcquire_loop(QBasicAtomicInteger<quintptr> &u, quintptr curValue, quintptr nn, int timeout)
+futexSemaphoreTryAcquire_loop(QBasicAtomicInteger<quintptr> &u, quintptr curValue, quintptr nn,
+                              QDeadlineTimer timer)
 {
-    QDeadlineTimer timer(IsTimed ? QDeadlineTimer(timeout) : QDeadlineTimer());
-    qint64 remainingTime = timeout * Q_INT64_C(1000) * 1000;
+    qint64 remainingTime = IsTimed ? timer.remainingTimeNSecs() : -1;
     int n = int(unsigned(nn));
 
     // we're called after one testAndSet, so start by waiting first
@@ -190,8 +190,13 @@ futexSemaphoreTryAcquire_loop(QBasicAtomicInteger<quintptr> &u, quintptr curValu
     }
 }
 
-template <bool IsTimed> bool futexSemaphoreTryAcquire(QBasicAtomicInteger<quintptr> &u, int n, int timeout)
+static constexpr QDeadlineTimer::ForeverConstant Expired =
+        QDeadlineTimer::ForeverConstant(1);
+
+template <typename T> bool
+futexSemaphoreTryAcquire(QBasicAtomicInteger<quintptr> &u, int n, T timeout)
 {
+    constexpr bool IsTimed = std::is_same_v<QDeadlineTimer, T>;
     // Try to acquire without waiting (we still loop because the testAndSet
     // call can fail).
     quintptr nn = unsigned(n);
@@ -205,8 +210,13 @@ template <bool IsTimed> bool futexSemaphoreTryAcquire(QBasicAtomicInteger<quintp
         if (u.testAndSetOrdered(curValue, newValue, curValue))
             return true;        // succeeded!
     }
-    if (timeout == 0)
-        return false;
+    if constexpr (IsTimed) {
+        if (timeout.hasExpired())
+            return false;
+    } else {
+        if (timeout == Expired)
+            return false;
+    }
 
     // we need to wait
     constexpr quintptr oneWaiter = quintptr(Q_UINT64_C(1) << 32); // zero on 32-bit
@@ -290,10 +300,15 @@ QSemaphore::~QSemaphore()
 */
 void QSemaphore::acquire(int n)
 {
+#if QT_VERSION >= QT_VERSION_CHECK(7, 0, 0)
+#  warning "Move the Q_ASSERT to inline code, make QSemaphore have wide contract, " \
+    "and mark noexcept where futexes are in use."
+#else
     Q_ASSERT_X(n >= 0, "QSemaphore::acquire", "parameter 'n' must be non-negative");
+#endif
 
     if (futexAvailable()) {
-        futexSemaphoreTryAcquire<false>(u, n, -1);
+        futexSemaphoreTryAcquire(u, n, QDeadlineTimer::Forever);
         return;
     }
 
@@ -409,7 +424,7 @@ bool QSemaphore::tryAcquire(int n)
     Q_ASSERT_X(n >= 0, "QSemaphore::tryAcquire", "parameter 'n' must be non-negative");
 
     if (futexAvailable())
-        return futexSemaphoreTryAcquire<false>(u, n, 0);
+        return futexSemaphoreTryAcquire(u, n, Expired);
 
     const auto locker = qt_scoped_lock(d->mutex);
     if (n > d->avail)
@@ -419,6 +434,8 @@ bool QSemaphore::tryAcquire(int n)
 }
 
 /*!
+    \fn QSemaphore::tryAcquire(int n, int timeout)
+
     Tries to acquire \c n resources guarded by the semaphore and
     returns \c true on success. If available() < \a n, this call will
     wait for at most \a timeout milliseconds for resources to become
@@ -434,26 +451,40 @@ bool QSemaphore::tryAcquire(int n)
 
     \sa acquire()
 */
-bool QSemaphore::tryAcquire(int n, int timeout)
+
+/*!
+    \since 6.6
+
+    Tries to acquire \c n resources guarded by the semaphore and returns \c
+    true on success. If available() < \a n, this call will wait until \a timer
+    expires for resources to become available.
+
+    Example:
+
+    \snippet code/src_corelib_thread_qsemaphore.cpp tryAcquire-QDeadlineTimer
+
+    \sa acquire()
+*/
+bool QSemaphore::tryAcquire(int n, QDeadlineTimer timer)
 {
-    if (timeout < 0) {
+    if (timer.isForever()) {
         acquire(n);
         return true;
     }
 
-    if (timeout == 0)
+    if (timer.hasExpired())
         return tryAcquire(n);
 
     Q_ASSERT_X(n >= 0, "QSemaphore::tryAcquire", "parameter 'n' must be non-negative");
 
     if (futexAvailable())
-        return futexSemaphoreTryAcquire<true>(u, n, timeout);
+        return futexSemaphoreTryAcquire(u, n, timer);
 
     using namespace std::chrono;
     const auto sufficientResourcesAvailable = [this, n] { return d->avail >= n; };
 
     auto locker = qt_unique_lock(d->mutex);
-    if (!d->cond.wait_for(locker, milliseconds{timeout}, sufficientResourcesAvailable))
+    if (!d->cond.wait_until(locker, timer.deadline<steady_clock>(), sufficientResourcesAvailable))
         return false;
     d->avail -= n;
     return true;
diff --git a/src/corelib/thread/qsemaphore.h b/src/corelib/thread/qsemaphore.h
index 8823468d..dda722a5 100644
--- a/src/corelib/thread/qsemaphore.h
+++ b/src/corelib/thread/qsemaphore.h
@@ -5,7 +5,7 @@
 #define QSEMAPHORE_H
 
 #include <QtCore/qglobal.h>
-#include <QtCore/qmutex.h> // for convertToMilliseconds()
+#include <QtCore/qdeadlinetimer.h>
 
 #include <chrono>
 
@@ -14,7 +14,6 @@ QT_REQUIRE_CONFIG(thread);
 QT_BEGIN_NAMESPACE
 
 class QSemaphorePrivate;
-
 class Q_CORE_EXPORT QSemaphore
 {
 public:
@@ -23,10 +22,14 @@ public:
 
     void acquire(int n = 1);
     bool tryAcquire(int n = 1);
+    QT_CORE_INLINE_SINCE(6, 6)
     bool tryAcquire(int n, int timeout);
+    bool tryAcquire(int n, QDeadlineTimer timeout);
+#if QT_VERSION < QT_VERSION_CHECK(7, 0, 0)
     template <typename Rep, typename Period>
     bool tryAcquire(int n, std::chrono::duration<Rep, Period> timeout)
-    { return tryAcquire(n, QtPrivate::convertToMilliseconds(timeout)); }
+    { return tryAcquire(n, QDeadlineTimer(timeout)); }
+#endif
 
     void release(int n = 1);
 
@@ -53,14 +56,25 @@ private:
     };
 };
 
+#if QT_CORE_INLINE_IMPL_SINCE(6, 6)
+bool QSemaphore::tryAcquire(int n, int timeout)
+{
+    return tryAcquire(n, QDeadlineTimer(timeout));
+}
+#endif
+
 class QSemaphoreReleaser
 {
 public:
+    Q_NODISCARD_CTOR
     QSemaphoreReleaser() = default;
+    Q_NODISCARD_CTOR
     explicit QSemaphoreReleaser(QSemaphore &sem, int n = 1) noexcept
         : m_sem(&sem), m_n(n) {}
+    Q_NODISCARD_CTOR
     explicit QSemaphoreReleaser(QSemaphore *sem, int n = 1) noexcept
         : m_sem(sem), m_n(n) {}
+    Q_NODISCARD_CTOR
     QSemaphoreReleaser(QSemaphoreReleaser &&other) noexcept
         : m_sem(other.cancel()), m_n(other.m_n) {}
     QT_MOVE_ASSIGNMENT_OPERATOR_IMPL_VIA_MOVE_AND_SWAP(QSemaphoreReleaser)
diff --git a/src/corelib/thread/qthread.cpp b/src/corelib/thread/qthread.cpp
index 40ee2a60..c54fa0f6 100644
--- a/src/corelib/thread/qthread.cpp
+++ b/src/corelib/thread/qthread.cpp
@@ -751,16 +751,28 @@ QThread::Priority QThread::priority() const
 }
 
 /*!
-    \fn void QThread::sleep(unsigned long secs)
+    \fn void QThread::sleep(std::chrono::nanoseconds nsecs)
+    \since 6.6
 
-    Forces the current thread to sleep for \a secs seconds.
+    Forces the current thread to sleep for \a nsecs.
 
     Avoid using this function if you need to wait for a given condition to
     change. Instead, connect a slot to the signal that indicates the change or
     use an event handler (see \l QObject::event()).
 
     \note This function does not guarantee accuracy. The application may sleep
-    longer than \a secs under heavy load conditions.
+    longer than \a nsecs under heavy load conditions.
+*/
+
+/*!
+    \fn void QThread::sleep(unsigned long secs)
+
+    Forces the current thread to sleep for \a secs seconds.
+
+    This is an overloaded function, equivalent to calling:
+    \code
+    QThread::sleep(std::chrono::seconds{secs});
+    \endcode
 
     \sa msleep(), usleep()
 */
@@ -768,11 +780,10 @@ QThread::Priority QThread::priority() const
 /*!
     \fn void QThread::msleep(unsigned long msecs)
 
-    Forces the current thread to sleep for \a msecs milliseconds.
-
-    Avoid using this function if you need to wait for a given condition to
-    change. Instead, connect a slot to the signal that indicates the change or
-    use an event handler (see \l QObject::event()).
+    This is an overloaded function, equivalent to calling:
+    \code
+    QThread::sleep(std::chrono::milliseconds{msecs});
+    \endcode
 
     \note This function does not guarantee accuracy. The application may sleep
     longer than \a msecs under heavy load conditions. Some OSes might round \a
@@ -784,11 +795,10 @@ QThread::Priority QThread::priority() const
 /*!
     \fn void QThread::usleep(unsigned long usecs)
 
-    Forces the current thread to sleep for \a usecs microseconds.
-
-    Avoid using this function if you need to wait for a given condition to
-    change. Instead, connect a slot to the signal that indicates the change or
-    use an event handler (see \l QObject::event()).
+    This is an overloaded function, equivalent to calling:
+    \code
+    QThread::sleep(std::chrono::microseconds{secs});
+    \endcode
 
     \note This function does not guarantee accuracy. The application may sleep
     longer than \a usecs under heavy load conditions. Some OSes might round \a
diff --git a/src/corelib/thread/qthread.h b/src/corelib/thread/qthread.h
index e9af85ee..40f363ee 100644
--- a/src/corelib/thread/qthread.h
+++ b/src/corelib/thread/qthread.h
@@ -24,6 +24,7 @@ QT_BEGIN_NAMESPACE
 class QThreadData;
 class QThreadPrivate;
 class QAbstractEventDispatcher;
+class QEventLoopLocker;
 
 class Q_CORE_EXPORT QThread : public QObject
 {
@@ -92,6 +93,7 @@ public:
     static void sleep(unsigned long);
     static void msleep(unsigned long);
     static void usleep(unsigned long);
+    static void sleep(std::chrono::nanoseconds nsec);
 
 Q_SIGNALS:
     void started(QPrivateSignal);
@@ -108,6 +110,7 @@ protected:
 
 private:
     Q_DECLARE_PRIVATE(QThread)
+    friend class QEventLoopLocker;
 
 #if QT_CONFIG(cxx11_future)
     [[nodiscard]] static QThread *createThreadImpl(std::future<void> &&future);
@@ -157,7 +160,7 @@ inline Qt::HANDLE QThread::currentThreadId() noexcept
     // See https://akkadia.org/drepper/tls.pdf for x86 ABI
 #if defined(Q_PROCESSOR_X86_32) && ((defined(Q_OS_LINUX) && defined(__GLIBC__)) || defined(Q_OS_FREEBSD)) // x86 32-bit always uses GS
     __asm__("movl %%gs:%c1, %0" : "=r" (tid) : "i" (2 * sizeof(void*)) : );
-#elif defined(Q_PROCESSOR_X86_64) && defined(Q_OS_DARWIN64)
+#elif defined(Q_PROCESSOR_X86_64) && defined(Q_OS_DARWIN)
     // 64bit macOS uses GS, see https://github.com/apple/darwin-xnu/blob/master/libsyscall/os/tsd.h
     __asm__("movq %%gs:0, %0" : "=r" (tid) : : );
 #elif defined(Q_PROCESSOR_X86_64) && ((defined(Q_OS_LINUX) && defined(__GLIBC__)) || defined(Q_OS_FREEBSD))
diff --git a/src/corelib/thread/qthread_unix.cpp b/src/corelib/thread/qthread_unix.cpp
index fa03b2ea..ee66e1c3 100644
--- a/src/corelib/thread/qthread_unix.cpp
+++ b/src/corelib/thread/qthread_unix.cpp
@@ -8,6 +8,7 @@
 
 #include <private/qcoreapplication_p.h>
 #include <private/qcore_unix_p.h>
+#include <private/qtools_p.h>
 
 #if defined(Q_OS_DARWIN)
 #  include <private/qeventdispatcher_cf_p.h>
@@ -70,6 +71,8 @@
 
 QT_BEGIN_NAMESPACE
 
+using namespace QtMiscUtils;
+
 #if QT_CONFIG(thread)
 
 static_assert(sizeof(pthread_t) <= sizeof(Qt::HANDLE));
@@ -141,25 +144,25 @@ static void clear_thread_data()
 }
 
 template <typename T>
-static typename std::enable_if<QTypeInfo<T>::isIntegral, Qt::HANDLE>::type to_HANDLE(T id)
+static typename std::enable_if<std::is_integral_v<T>, Qt::HANDLE>::type to_HANDLE(T id)
 {
     return reinterpret_cast<Qt::HANDLE>(static_cast<intptr_t>(id));
 }
 
 template <typename T>
-static typename std::enable_if<QTypeInfo<T>::isIntegral, T>::type from_HANDLE(Qt::HANDLE id)
+static typename std::enable_if<std::is_integral_v<T>, T>::type from_HANDLE(Qt::HANDLE id)
 {
     return static_cast<T>(reinterpret_cast<intptr_t>(id));
 }
 
 template <typename T>
-static typename std::enable_if<QTypeInfo<T>::isPointer, Qt::HANDLE>::type to_HANDLE(T id)
+static typename std::enable_if<std::is_pointer_v<T>, Qt::HANDLE>::type to_HANDLE(T id)
 {
     return id;
 }
 
 template <typename T>
-static typename std::enable_if<QTypeInfo<T>::isPointer, T>::type from_HANDLE(Qt::HANDLE id)
+static typename std::enable_if<std::is_pointer_v<T>, T>::type from_HANDLE(Qt::HANDLE id)
 {
     return static_cast<T>(id);
 }
@@ -234,12 +237,12 @@ QAbstractEventDispatcher *QThreadPrivate::createEventDispatcher(QThreadData *dat
 
 #if QT_CONFIG(thread)
 
-#if (defined(Q_OS_LINUX) || defined(Q_OS_MAC) || defined(Q_OS_QNX))
+#if (defined(Q_OS_LINUX) || defined(Q_OS_DARWIN) || defined(Q_OS_QNX))
 static void setCurrentThreadName(const char *name)
 {
 #  if defined(Q_OS_LINUX) && !defined(QT_LINUXBASE)
     prctl(PR_SET_NAME, (unsigned long)name, 0, 0, 0);
-#  elif defined(Q_OS_MAC)
+#  elif defined(Q_OS_DARWIN)
     pthread_setname_np(name);
 #  elif defined(Q_OS_QNX)
     pthread_setname_np(pthread_self(), name);
@@ -301,7 +304,7 @@ void *QThreadPrivate::start(void *arg)
         data->ensureEventDispatcher();
         data->eventDispatcher.loadRelaxed()->startingUp();
 
-#if (defined(Q_OS_LINUX) || defined(Q_OS_MAC) || defined(Q_OS_QNX))
+#if (defined(Q_OS_LINUX) || defined(Q_OS_DARWIN) || defined(Q_OS_QNX))
         {
             // Sets the name of the current thread. We can only do this
             // when the thread is starting, as we don't have a cross
@@ -488,17 +491,6 @@ void QThread::yieldCurrentThread()
 
 #endif // QT_CONFIG(thread)
 
-static timespec makeTimespec(std::chrono::nanoseconds nsecs)
-{
-    using namespace std::chrono;
-    const seconds secs = duration_cast<seconds>(nsecs);
-    const nanoseconds frac = nsecs - secs;
-    struct timespec ts;
-    ts.tv_sec = secs.count();
-    ts.tv_nsec = frac.count();
-    return ts;
-}
-
 static void qt_nanosleep(timespec amount)
 {
     // We'd like to use clock_nanosleep.
@@ -515,17 +507,22 @@ static void qt_nanosleep(timespec amount)
 
 void QThread::sleep(unsigned long secs)
 {
-    qt_nanosleep(makeTimespec(std::chrono::seconds{secs}));
+    sleep(std::chrono::seconds{secs});
 }
 
 void QThread::msleep(unsigned long msecs)
 {
-    qt_nanosleep(makeTimespec(std::chrono::milliseconds{msecs}));
+    sleep(std::chrono::milliseconds{msecs});
 }
 
 void QThread::usleep(unsigned long usecs)
 {
-    qt_nanosleep(makeTimespec(std::chrono::microseconds{usecs}));
+    sleep(std::chrono::microseconds{usecs});
+}
+
+void QThread::sleep(std::chrono::nanoseconds nsec)
+{
+    qt_nanosleep(durationToTimespec(nsec));
 }
 
 #if QT_CONFIG(thread)
diff --git a/src/corelib/thread/qthread_win.cpp b/src/corelib/thread/qthread_win.cpp
index 14e3f330..b4a10d24 100644
--- a/src/corelib/thread/qthread_win.cpp
+++ b/src/corelib/thread/qthread_win.cpp
@@ -368,6 +368,12 @@ void QThread::yieldCurrentThread()
 
 #endif // QT_CONFIG(thread)
 
+void QThread::sleep(std::chrono::nanoseconds nsecs)
+{
+    using namespace std::chrono;
+    ::Sleep(DWORD(duration_cast<milliseconds>(nsecs).count()));
+}
+
 void QThread::sleep(unsigned long secs)
 {
     ::Sleep(secs * 1000);
diff --git a/src/corelib/thread/qthreadpool.cpp b/src/corelib/thread/qthreadpool.cpp
index 51783321..fb7ef030 100644
--- a/src/corelib/thread/qthreadpool.cpp
+++ b/src/corelib/thread/qthreadpool.cpp
@@ -517,20 +517,21 @@ void QThreadPool::start(QRunnable *runnable, int priority)
 }
 
 /*!
+    \fn template<typename Callable, QRunnable::if_callable<Callable>> void QThreadPool::start(Callable &&callableToRun, int priority)
     \overload
     \since 5.15
 
-    Reserves a thread and uses it to run \a functionToRun, unless this thread will
+    Reserves a thread and uses it to run \a callableToRun, unless this thread will
     make the current thread count exceed maxThreadCount().  In that case,
-    \a functionToRun is added to a run queue instead. The \a priority argument can
+    \a callableToRun is added to a run queue instead. The \a priority argument can
     be used to control the run queue's order of execution.
+
+    \note This function participates in overload resolution only if \c Callable
+    is a function or function object which can be called with zero arguments.
+
+    \note In Qt version prior to 6.6, this function took std::function<void()>,
+    and therefore couldn't handle move-only callables.
 */
-void QThreadPool::start(std::function<void()> functionToRun, int priority)
-{
-    if (!functionToRun)
-        return;
-    start(QRunnable::create(std::move(functionToRun)), priority);
-}
 
 /*!
     Attempts to reserve a thread to run \a runnable.
@@ -562,30 +563,21 @@ bool QThreadPool::tryStart(QRunnable *runnable)
 }
 
 /*!
+    \fn template<typename Callable, QRunnable::if_callable<Callable>> bool QThreadPool::tryStart(Callable &&callableToRun)
     \overload
     \since 5.15
-    Attempts to reserve a thread to run \a functionToRun.
+    Attempts to reserve a thread to run \a callableToRun.
 
     If no threads are available at the time of calling, then this function
-    does nothing and returns \c false.  Otherwise, \a functionToRun is run immediately
+    does nothing and returns \c false.  Otherwise, \a callableToRun is run immediately
     using one available thread and this function returns \c true.
+
+    \note This function participates in overload resolution only if \c Callable
+    is a function or function object which can be called with zero arguments.
+
+    \note In Qt version prior to 6.6, this function took std::function<void()>,
+    and therefore couldn't handle move-only callables.
 */
-bool QThreadPool::tryStart(std::function<void()> functionToRun)
-{
-    if (!functionToRun)
-        return false;
-
-    Q_D(QThreadPool);
-    QMutexLocker locker(&d->mutex);
-    if (!d->allThreads.isEmpty() && d->areAllThreadsActive())
-        return false;
-
-    QRunnable *runnable = QRunnable::create(std::move(functionToRun));
-    if (d->tryStart(runnable))
-        return true;
-    delete runnable;
-    return false;
-}
 
 /*! \property QThreadPool::expiryTimeout
     \brief the thread expiry timeout value in milliseconds.
@@ -799,19 +791,19 @@ void QThreadPool::startOnReservedThread(QRunnable *runnable)
 }
 
 /*!
+    \fn template<typename Callable, QRunnable::if_callable<Callable>> void QThreadPool::startOnReservedThread(Callable &&callableToRun)
     \overload
     \since 6.3
 
     Releases a thread previously reserved with reserveThread() and uses it
-    to run \a functionToRun.
-*/
-void QThreadPool::startOnReservedThread(std::function<void()> functionToRun)
-{
-    if (!functionToRun)
-        return releaseThread();
+    to run \a callableToRun.
 
-    startOnReservedThread(QRunnable::create(std::move(functionToRun)));
-}
+    \note This function participates in overload resolution only if \c Callable
+    is a function or function object which can be called with zero arguments.
+
+    \note In Qt version prior to 6.6, this function took std::function<void()>,
+    and therefore couldn't handle move-only callables.
+*/
 
 /*!
     Waits up to \a msecs milliseconds for all threads to exit and removes all
diff --git a/src/corelib/thread/qthreadpool.h b/src/corelib/thread/qthreadpool.h
index e6d0326c..a097ace1 100644
--- a/src/corelib/thread/qthreadpool.h
+++ b/src/corelib/thread/qthreadpool.h
@@ -36,11 +36,22 @@ public:
     void start(QRunnable *runnable, int priority = 0);
     bool tryStart(QRunnable *runnable);
 
+#if QT_CORE_REMOVED_SINCE(6, 6)
     void start(std::function<void()> functionToRun, int priority = 0);
     bool tryStart(std::function<void()> functionToRun);
+#endif
 
     void startOnReservedThread(QRunnable *runnable);
+#if QT_CORE_REMOVED_SINCE(6, 6)
     void startOnReservedThread(std::function<void()> functionToRun);
+#endif
+
+    template <typename Callable, QRunnable::if_callable<Callable> = true>
+    void start(Callable &&functionToRun, int priority = 0);
+    template <typename Callable, QRunnable::if_callable<Callable> = true>
+    bool tryStart(Callable &&functionToRun);
+    template <typename Callable, QRunnable::if_callable<Callable> = true>
+    void startOnReservedThread(Callable &&functionToRun);
 
     int expiryTimeout() const;
     void setExpiryTimeout(int expiryTimeout);
@@ -68,6 +79,28 @@ public:
     [[nodiscard]] bool tryTake(QRunnable *runnable);
 };
 
+template <typename Callable, QRunnable::if_callable<Callable>>
+void QThreadPool::start(Callable &&functionToRun, int priority)
+{
+    start(QRunnable::create(std::forward<Callable>(functionToRun)), priority);
+}
+
+template <typename Callable, QRunnable::if_callable<Callable>>
+bool QThreadPool::tryStart(Callable &&functionToRun)
+{
+    QRunnable *runnable = QRunnable::create(std::forward<Callable>(functionToRun));
+    if (tryStart(runnable))
+        return true;
+    delete runnable;
+    return false;
+}
+
+template <typename Callable, QRunnable::if_callable<Callable>>
+void QThreadPool::startOnReservedThread(Callable &&functionToRun)
+{
+    startOnReservedThread(QRunnable::create(std::forward<Callable>(functionToRun)));
+}
+
 QT_END_NAMESPACE
 
 #endif
diff --git a/src/corelib/thread/qwaitcondition_unix.cpp b/src/corelib/thread/qwaitcondition_unix.cpp
index c97023d9..0e29316d 100644
--- a/src/corelib/thread/qwaitcondition_unix.cpp
+++ b/src/corelib/thread/qwaitcondition_unix.cpp
@@ -2,18 +2,17 @@
 // Copyright (C) 2016 Intel Corporation.
 // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
 
-#include "qplatformdefs.h"
 #include "qwaitcondition.h"
-#include "qmutex.h"
-#include "qreadwritelock.h"
-#include "qatomic.h"
-#include "qstring.h"
-#include "qdeadlinetimer.h"
-#include "private/qdeadlinetimer_p.h"
-#include "qelapsedtimer.h"
-#include "private/qcore_unix_p.h"
 
-#include "qmutex_p.h"
+#include "qatomic.h"
+#include "qdeadlinetimer.h"
+#include "qelapsedtimer.h"
+#include "qmutex.h"
+#include "qplatformdefs.h"
+#include "qreadwritelock.h"
+#include "qstring.h"
+
+#include "private/qcore_unix_p.h"
 #include "qreadwritelock_p.h"
 
 #include <errno.h>
@@ -22,44 +21,61 @@
 
 QT_BEGIN_NAMESPACE
 
-static void report_error(int code, const char *where, const char *what)
+static constexpr clockid_t SteadyClockClockId =
+#if !defined(CLOCK_MONOTONIC)
+        // we don't know how to set the monotonic clock
+        CLOCK_REALTIME
+#elif defined(_LIBCPP_VERSION) && defined(_LIBCPP_HAS_NO_MONOTONIC_CLOCK)
+        // libc++ falling back to system_clock
+        CLOCK_REALTIME
+#elif defined(__GLIBCXX__) && !defined(_GLIBCXX_USE_CLOCK_MONOTONIC)
+        // libstdc++ falling back to system_clock
+        CLOCK_REALTIME
+#elif defined(Q_OS_DARWIN)
+        // Darwin lacks pthread_condattr_setclock()
+        CLOCK_REALTIME
+#elif defined(Q_OS_QNX)
+        // unknown why
+        CLOCK_REALTIME
+#elif defined(__GLIBCXX__) || defined(_LIBCPP_VERSION)
+        // both libstdc++ and libc++ do use CLOCK_MONOTONIC
+        CLOCK_MONOTONIC
+#else
+#  warning "Unknown C++ Standard Library implementation - code may be sub-optimal"
+        CLOCK_REALTIME
+#endif
+        ;
+
+static void qt_report_pthread_error(int code, const char *where, const char *what)
 {
     if (code != 0)
         qErrnoWarning(code, "%s: %s failure", where, what);
 }
 
-void qt_initialize_pthread_cond(pthread_cond_t *cond, const char *where)
+static void qt_initialize_pthread_cond(pthread_cond_t *cond, const char *where)
 {
+    pthread_condattr_t *attrp = nullptr;
+
+#if defined(CLOCK_MONOTONIC) && !defined(Q_OS_DARWIN)
     pthread_condattr_t condattr;
+    attrp = &condattr;
 
     pthread_condattr_init(&condattr);
-#if defined(CLOCK_MONOTONIC) && !defined(Q_OS_DARWIN)
-    if (QElapsedTimer::clockType() == QElapsedTimer::MonotonicClock)
-        pthread_condattr_setclock(&condattr, CLOCK_MONOTONIC);
+    auto destroy = qScopeGuard([&] { pthread_condattr_destroy(&condattr); });
+    if (SteadyClockClockId != CLOCK_REALTIME)
+        pthread_condattr_setclock(&condattr, SteadyClockClockId);
 #endif
-    report_error(pthread_cond_init(cond, &condattr), where, "cv init");
-    pthread_condattr_destroy(&condattr);
+
+    qt_report_pthread_error(pthread_cond_init(cond, attrp), where, "cv init");
 }
 
-void qt_abstime_for_timeout(timespec *ts, QDeadlineTimer deadline)
+static void qt_abstime_for_timeout(timespec *ts, QDeadlineTimer deadline)
 {
-#ifdef Q_OS_MAC
-    // on Mac, qt_gettime() (on qelapsedtimer_mac.cpp) returns ticks related to the Mach absolute time
-    // that doesn't work with pthread
-    // Mac also doesn't have clock_gettime
-    struct timeval tv;
-    qint64 nsec = deadline.remainingTimeNSecs();
-    gettimeofday(&tv, 0);
-    ts->tv_sec = tv.tv_sec + nsec / (1000 * 1000 * 1000);
-    ts->tv_nsec = tv.tv_usec * 1000 + nsec % (1000 * 1000 * 1000);
-
-    normalizedTimespec(*ts);
-#else
-    // depends on QDeadlineTimer's internals!!
-    static_assert(QDeadlineTimerNanosecondsInT2);
-    ts->tv_sec = deadline._q_data().first;
-    ts->tv_nsec = deadline._q_data().second;
-#endif
+    using namespace std::chrono;
+    using Clock =
+        std::conditional_t<SteadyClockClockId == CLOCK_REALTIME, system_clock, steady_clock>;
+    auto timePoint = deadline.deadline<Clock>();
+    *ts = durationToTimespec(timePoint.time_since_epoch());
 }
 
 class QWaitConditionPrivate
@@ -87,9 +103,7 @@ public:
                 code = pthread_cond_wait(&cond, &mutex);
             }
             if (code == 0 && wakeups == 0) {
-                // many vendors warn of spurious wakeups from
-                // pthread_cond_wait(), especially after signal delivery,
-                // even though POSIX doesn't allow for it... sigh
+                // spurious wakeup
                 continue;
             }
             break;
@@ -101,10 +115,11 @@ public:
             Q_ASSERT_X(wakeups > 0, "QWaitCondition::wait", "internal error (wakeups)");
             --wakeups;
         }
-        report_error(pthread_mutex_unlock(&mutex), "QWaitCondition::wait()", "mutex unlock");
+        qt_report_pthread_error(pthread_mutex_unlock(&mutex), "QWaitCondition::wait()",
+                                "mutex unlock");
 
         if (code && code != ETIMEDOUT)
-            report_error(code, "QWaitCondition::wait()", "cv wait");
+            qt_report_pthread_error(code, "QWaitCondition::wait()", "cv wait");
 
         return (code == 0);
     }
@@ -113,32 +128,38 @@ public:
 QWaitCondition::QWaitCondition()
 {
     d = new QWaitConditionPrivate;
-    report_error(pthread_mutex_init(&d->mutex, nullptr), "QWaitCondition", "mutex init");
+    qt_report_pthread_error(pthread_mutex_init(&d->mutex, nullptr), "QWaitCondition", "mutex init");
     qt_initialize_pthread_cond(&d->cond, "QWaitCondition");
     d->waiters = d->wakeups = 0;
 }
 
 QWaitCondition::~QWaitCondition()
 {
-    report_error(pthread_cond_destroy(&d->cond), "QWaitCondition", "cv destroy");
-    report_error(pthread_mutex_destroy(&d->mutex), "QWaitCondition", "mutex destroy");
+    qt_report_pthread_error(pthread_cond_destroy(&d->cond), "QWaitCondition", "cv destroy");
+    qt_report_pthread_error(pthread_mutex_destroy(&d->mutex), "QWaitCondition", "mutex destroy");
     delete d;
 }
 
 void QWaitCondition::wakeOne()
 {
-    report_error(pthread_mutex_lock(&d->mutex), "QWaitCondition::wakeOne()", "mutex lock");
+    qt_report_pthread_error(pthread_mutex_lock(&d->mutex), "QWaitCondition::wakeOne()",
+                            "mutex lock");
     d->wakeups = qMin(d->wakeups + 1, d->waiters);
-    report_error(pthread_cond_signal(&d->cond), "QWaitCondition::wakeOne()", "cv signal");
-    report_error(pthread_mutex_unlock(&d->mutex), "QWaitCondition::wakeOne()", "mutex unlock");
+    qt_report_pthread_error(pthread_cond_signal(&d->cond), "QWaitCondition::wakeOne()",
+                            "cv signal");
+    qt_report_pthread_error(pthread_mutex_unlock(&d->mutex), "QWaitCondition::wakeOne()",
+                            "mutex unlock");
 }
 
 void QWaitCondition::wakeAll()
 {
-    report_error(pthread_mutex_lock(&d->mutex), "QWaitCondition::wakeAll()", "mutex lock");
+    qt_report_pthread_error(pthread_mutex_lock(&d->mutex), "QWaitCondition::wakeAll()",
+                            "mutex lock");
     d->wakeups = d->waiters;
-    report_error(pthread_cond_broadcast(&d->cond), "QWaitCondition::wakeAll()", "cv broadcast");
-    report_error(pthread_mutex_unlock(&d->mutex), "QWaitCondition::wakeAll()", "mutex unlock");
+    qt_report_pthread_error(pthread_cond_broadcast(&d->cond), "QWaitCondition::wakeAll()",
+                            "cv broadcast");
+    qt_report_pthread_error(pthread_mutex_unlock(&d->mutex), "QWaitCondition::wakeAll()",
+                            "mutex unlock");
 }
 
 bool QWaitCondition::wait(QMutex *mutex, unsigned long time)
@@ -153,7 +174,7 @@ bool QWaitCondition::wait(QMutex *mutex, QDeadlineTimer deadline)
     if (!mutex)
         return false;
 
-    report_error(pthread_mutex_lock(&d->mutex), "QWaitCondition::wait()", "mutex lock");
+    qt_report_pthread_error(pthread_mutex_lock(&d->mutex), "QWaitCondition::wait()", "mutex lock");
     ++d->waiters;
     mutex->unlock();
 
@@ -185,7 +206,7 @@ bool QWaitCondition::wait(QReadWriteLock *readWriteLock, QDeadlineTimer deadline
         return false;
     }
 
-    report_error(pthread_mutex_lock(&d->mutex), "QWaitCondition::wait()", "mutex lock");
+    qt_report_pthread_error(pthread_mutex_lock(&d->mutex), "QWaitCondition::wait()", "mutex lock");
     ++d->waiters;
 
     readWriteLock->unlock();
diff --git a/src/corelib/thread/qwaitcondition_win.cpp b/src/corelib/thread/qwaitcondition_win.cpp
index c176241f..ba53309e 100644
--- a/src/corelib/thread/qwaitcondition_win.cpp
+++ b/src/corelib/thread/qwaitcondition_win.cpp
@@ -43,7 +43,7 @@ public:
     EventQueue freeQueue;
 
     QWaitConditionEvent *pre();
-    bool wait(QWaitConditionEvent *wce, unsigned long time);
+    bool wait(QWaitConditionEvent *wce, QDeadlineTimer deadline);
     void post(QWaitConditionEvent *wce, bool ret);
 };
 
@@ -68,19 +68,25 @@ QWaitConditionEvent *QWaitConditionPrivate::pre()
     return wce;
 }
 
-bool QWaitConditionPrivate::wait(QWaitConditionEvent *wce, unsigned long time)
+bool QWaitConditionPrivate::wait(QWaitConditionEvent *wce, QDeadlineTimer deadline)
 {
     // wait for the event
-    bool ret = false;
-    switch (WaitForSingleObjectEx(wce->event, time, FALSE)) {
-    default:
-        break;
+    while (true) {
+        const DWORD timeout = deadline.isForever()
+                ? INFINITE
+                : DWORD(std::min(deadline.remainingTime(), qint64(INFINITE - 1)));
 
-    case WAIT_OBJECT_0:
-        ret = true;
-        break;
+        switch (WaitForSingleObjectEx(wce->event, timeout, FALSE)) {
+        case WAIT_OBJECT_0:
+            return true;
+        case WAIT_TIMEOUT:
+            if (deadline.hasExpired())
+                return false;
+            break;
+        default:
+            return false;
+        }
     }
-    return ret;
 }
 
 void QWaitConditionPrivate::post(QWaitConditionEvent *wce, bool ret)
@@ -123,6 +129,13 @@ QWaitCondition::~QWaitCondition()
 }
 
 bool QWaitCondition::wait(QMutex *mutex, unsigned long time)
+{
+    if (time == std::numeric_limits<unsigned long>::max())
+        return wait(mutex, QDeadlineTimer(QDeadlineTimer::Forever));
+    return wait(mutex, QDeadlineTimer(time));
+}
+
+bool QWaitCondition::wait(QMutex *mutex, QDeadlineTimer deadline)
 {
     if (!mutex)
         return false;
@@ -130,7 +143,7 @@ bool QWaitCondition::wait(QMutex *mutex, unsigned long time)
     QWaitConditionEvent *wce = d->pre();
     mutex->unlock();
 
-    bool returnValue = d->wait(wce, time);
+    bool returnValue = d->wait(wce, deadline);
 
     mutex->lock();
     d->post(wce, returnValue);
@@ -138,12 +151,14 @@ bool QWaitCondition::wait(QMutex *mutex, unsigned long time)
     return returnValue;
 }
 
-bool QWaitCondition::wait(QMutex *mutex, QDeadlineTimer deadline)
+bool QWaitCondition::wait(QReadWriteLock *readWriteLock, unsigned long time)
 {
-    return wait(mutex, deadline.remainingTime());
+    if (time == std::numeric_limits<unsigned long>::max())
+        return wait(readWriteLock, QDeadlineTimer(QDeadlineTimer::Forever));
+    return wait(readWriteLock, QDeadlineTimer(time));
 }
 
-bool QWaitCondition::wait(QReadWriteLock *readWriteLock, unsigned long time)
+bool QWaitCondition::wait(QReadWriteLock *readWriteLock, QDeadlineTimer deadline)
 {
     using namespace QReadWriteLockStates;
 
@@ -160,7 +175,7 @@ bool QWaitCondition::wait(QReadWriteLock *readWriteLock, unsigned long time)
     QWaitConditionEvent *wce = d->pre();
     readWriteLock->unlock();
 
-    bool returnValue = d->wait(wce, time);
+    bool returnValue = d->wait(wce, deadline);
 
     if (previousState == LockedForWrite)
         readWriteLock->lockForWrite();
@@ -171,11 +186,6 @@ bool QWaitCondition::wait(QReadWriteLock *readWriteLock, unsigned long time)
     return returnValue;
 }
 
-bool QWaitCondition::wait(QReadWriteLock *readWriteLock, QDeadlineTimer deadline)
-{
-    return wait(readWriteLock, deadline.remainingTime());
-}
-
 void QWaitCondition::wakeOne()
 {
     // wake up the first waiting thread in the queue
diff --git a/src/corelib/time/qcalendar.cpp b/src/corelib/time/qcalendar.cpp
index 7f3ea9e2..5eaecedb 100644
--- a/src/corelib/time/qcalendar.cpp
+++ b/src/corelib/time/qcalendar.cpp
@@ -864,7 +864,7 @@ int QCalendarBackend::maximumMonthsInYear() const
  */
 int QCalendarBackend::dayOfWeek(qint64 jd) const
 {
-    return QRoundingDown::qMod(jd, 7) + 1;
+    return QRoundingDown::qMod<7>(jd) + 1;
 }
 
 // Month and week-day name look-ups (implemented in qlocale.cpp):
diff --git a/src/corelib/time/qcalendarmath_p.h b/src/corelib/time/qcalendarmath_p.h
index 885f5fab..c785803c 100644
--- a/src/corelib/time/qcalendarmath_p.h
+++ b/src/corelib/time/qcalendarmath_p.h
@@ -16,10 +16,27 @@
 //
 
 #include <QtCore/private/qglobal_p.h>
+#include <QtCore/QtAlgorithms>
 
 QT_BEGIN_NAMESPACE
 
 namespace QRoundingDown {
+// Note: qgregoriancalendar.cpp contains some static asserts to verify this all works.
+namespace QRoundingDownPrivate {
+#ifdef Q_CC_MSVC
+// MSVC 2019 doesn't believe in the constexpr-ness of the #else clause's version :-(
+#define QCALMATH_ISPOW2(b) ((b > 0) && !(b & (b - 1))) // See #else's comment.
+#else
+// Subtracting one toggles the least significant set bit and any unset bits less
+// significant than it, leaving other bits unchanged. Thus the & of this with
+// the original number preserves all more significant bits, clearing the least
+// significant. If there are no such bits, either our number was 0 or it only
+// had one bit set, hence is a power of two.
+template <typename Int>
+inline constexpr bool isPowerOfTwo(Int b) { return b > 0 && (b & (b - 1)) == 0; }
+#define QCALMATH_ISPOW2(b) QRoundingDownPrivate::isPowerOfTwo(b)
+#endif
+}
 /*
   Division, rounding down (rather than towards zero).
 
@@ -33,16 +50,96 @@ namespace QRoundingDown {
   doesn't change the result of dividing by b; and we want one less than that
   result. This is equivalent to subtracting b - 1 and simply dividing, except
   when that subtraction would underflow.
+
+  For the remainder, with negative a, aside from having to add one and subtract
+  it later to deal with the exact multiples, we can simply use the truncating
+  remainder and then add b. When b is a power of two we can, of course, get the
+  remainder correctly by the same masking that works for positive a.
 */
 
-template<typename Int> constexpr Int qDiv(Int a, unsigned b)
-{ return a < 0 ? (a + 1) / int(b) - 1 : a / int(b); }
+// Fall-back, to ensure intelligible error messages on mis-use:
+template <unsigned b, typename Int, std::enable_if_t<(int(b) < 2), bool> = true>
+constexpr auto qDivMod(Int)
+{
+    static_assert(b, "Division by 0 is undefined");
+    // Use complement of earlier cases || new check, to ensure only one error:
+    static_assert(!b || int(b) > 0, "Denominator is too big");
+    static_assert(int(b) < 1 || b > 1, "Division by 1 is fautous");
+    struct R { Int quotient; Int remainder; };
+    return R { 0, 0 };
+}
 
-template<typename Int> constexpr Int qMod(Int a, unsigned b)
-{ return a - qDiv(a, b) * b; }
+template <unsigned b, typename Int,
+          std::enable_if_t<(b > 1) && !QCALMATH_ISPOW2(b) && (int(b) > 0),
+                           bool> = true>
+constexpr auto qDivMod(Int a)
+{
+    struct R { Int quotient; Int remainder; };
+    if constexpr (std::is_signed_v<Int>) {
+        if (a < 0) {
+            ++a;    // can't overflow, it's negative
+            return R { Int(a / int(b) - 1), Int(a % int(b) - 1 + int(b)) };
+        }
+    }
+    return R { Int(a / int(b)), Int(a % int(b)) };
+}
+
+template <unsigned b, typename Int,
+          std::enable_if_t<(b > 1) && QCALMATH_ISPOW2(b) && (int(b) > 0),
+                           bool> = true>
+constexpr auto qDivMod(Int a)
+{
+    constexpr unsigned w = QtPrivate::qConstexprCountTrailingZeroBits(b);
+    struct R { Int quotient; Int remainder; };
+    if constexpr (std::is_signed_v<Int>) {
+        if (a < 0)
+            return R { Int((a + 1) / int(b) - 1), Int(a & int(b - 1)) };
+    }
+    return R { Int(a >> w), Int(a & int(b - 1)) };
+}
+
+#undef QCALMATH_ISPOW2
+// </kludge>
+
+template <unsigned b, typename Int> constexpr Int qDiv(Int a) { return qDivMod<b>(a).quotient; }
+template <unsigned b, typename Int> constexpr Int qMod(Int a) { return qDivMod<b>(a).remainder; }
 
 } // QRoundingDown
 
+namespace QRomanCalendrical {
+// Julian Day number of Gregorian 1 BCE, February 29th:
+constexpr qint64 LeapDayGregorian1Bce = 1721119;
+// Aside from (maybe) some turns of centuries, one year in four is leap:
+constexpr unsigned FourYears = 4 * 365 + 1;
+constexpr unsigned FiveMonths = 31 + 30 + 31 + 30 + 31; // Mar-Jul or Aug-Dec.
+
+constexpr auto yearMonthToYearDays(int year, int month)
+{
+    // Pre-digests year and month to (possibly denormal) year count and day-within-year.
+    struct R { qint64 year; qint64 days; };
+    if (year < 0) // Represent -N BCE as 1-N so year numbering is contiguous.
+        ++year;
+    month -= 3; // Adjust month numbering so March = 0, ...
+    if (month < 0) { // and Jan = 10, Feb = 11, in the previous year.
+        --year;
+        month += 12;
+    }
+    return R { year, QRoundingDown::qDiv<5>(FiveMonths * month + 2) };
+}
+
+constexpr auto dayInYearToYmd(int dayInYear)
+{
+    // The year is an adjustment to the year for which dayInYear may be denormal.
+    struct R { int year; int month; int day; };
+    // Shared code for Julian and Milankovic (at least).
+    using namespace QRoundingDown;
+    const auto month5Day = qDivMod<FiveMonths>(5 * dayInYear + 2);
+    // Its remainder changes by 5 per day, except at roughly monthly quotient steps.
+    const auto yearMonth = qDivMod<12>(month5Day.quotient + 2);
+    return R { yearMonth.quotient, yearMonth.remainder + 1, qDiv<5>(month5Day.remainder) + 1 };
+}
+}
+
 QT_END_NAMESPACE
 
 #endif // QCALENDARMATH_P_H
diff --git a/src/corelib/time/qdatetime.cpp b/src/corelib/time/qdatetime.cpp
index 9772d436..cd4cdf7d 100644
--- a/src/corelib/time/qdatetime.cpp
+++ b/src/corelib/time/qdatetime.cpp
@@ -19,8 +19,10 @@
 #include "private/qcore_mac_p.h"
 #endif
 #include "private/qgregoriancalendar_p.h"
+#include "private/qlocale_tools_p.h"
 #include "private/qlocaltime_p.h"
 #include "private/qnumeric_p.h"
+#include "private/qstringconverter_p.h"
 #include "private/qstringiterator_p.h"
 #if QT_CONFIG(timezone)
 #include "private/qtimezoneprivate_p.h"
@@ -31,10 +33,13 @@
 #  include <qt_windows.h>
 #endif
 
+#include <private/qtools_p.h>
+
 QT_BEGIN_NAMESPACE
 
 using namespace Qt::StringLiterals;
 using namespace QtPrivate::DateTimeConstants;
+using namespace QtMiscUtils;
 
 /*****************************************************************************
   Date/Time Constants
@@ -58,9 +63,9 @@ static inline QDate fixedDate(QCalendar::YearMonthDay parts)
 {
     if (parts.year) {
         parts.day = qMin(parts.day, QGregorianCalendar::monthLength(parts.month, parts.year));
-        qint64 jd;
-        if (QGregorianCalendar::julianFromParts(parts.year, parts.month, parts.day, &jd))
-            return QDate::fromJulianDay(jd);
+        const auto jd = QGregorianCalendar::julianFromParts(parts.year, parts.month, parts.day);
+        if (jd)
+            return QDate::fromJulianDay(*jd);
     }
     return QDate();
 }
@@ -86,6 +91,42 @@ static int fromShortMonthName(QStringView monthName)
 #endif // textdate
 
 #if QT_CONFIG(datestring) // depends on, so implies, textdate
+namespace {
+using ParsedInt = QSimpleParsedNumber<qulonglong>;
+
+/*
+    Reads a whole number that must be the whole text.
+*/
+ParsedInt readInt(QLatin1StringView text)
+{
+    // Various date formats' fields (e.g. all in ISO) should not accept spaces
+    // or signs, so check that the string starts with a digit and that qstrntoull()
+    // converted the whole string.
+
+    if (text.isEmpty() || !isAsciiDigit(text.front().toLatin1()))
+        return {};
+
+    QSimpleParsedNumber res = qstrntoull(text.data(), text.size(), 10);
+    return res.used == text.size() ? res : ParsedInt{};
+}
+
+ParsedInt readInt(QStringView text)
+{
+    if (text.isEmpty())
+        return {};
+
+    // Converting to Latin-1 because QStringView::toULongLong() works with
+    // US-ASCII only by design anyway.
+    // Also QStringView::toULongLong() can't be used here as it will happily ignore
+    // spaces and accept signs; but various date formats' fields (e.g. all in ISO)
+    // should not.
+    QVarLengthArray<char> latin1(text.size());
+    QLatin1::convertFromUnicode(latin1.data(), text);
+    return readInt(QLatin1StringView{latin1.data(), latin1.size()});
+}
+
+} // namespace
+
 struct ParsedRfcDateTime {
     QDate date;
     QTime time;
@@ -394,8 +435,9 @@ static int fromOffsetString(QStringView offsetString, bool *valid) noexcept
 
 QDate::QDate(int y, int m, int d)
 {
-    if (!QGregorianCalendar::julianFromParts(y, m, d, &jd))
-        jd = nullJd();
+    static_assert(QDate::maxJd() == JulianDayMax);
+    static_assert(QDate::minJd() == JulianDayMin);
+    jd = QGregorianCalendar::julianFromParts(y, m, d).value_or(nullJd());
 }
 
 QDate::QDate(int y, int m, int d, QCalendar cal)
@@ -654,9 +696,8 @@ int QDate::dayOfYear(QCalendar cal) const
 int QDate::dayOfYear() const
 {
     if (isValid()) {
-        qint64 first;
-        if (QGregorianCalendar::julianFromParts(year(), 1, 1, &first))
-            return jd - first + 1;
+        if (const auto first = QGregorianCalendar::julianFromParts(year(), 1, 1))
+            return jd - *first + 1;
     }
     return 0;
 }
@@ -787,7 +828,9 @@ static QTimeZone asTimeZone(Qt::TimeSpec spec, int offset, const char *warner)
 }
 #endif // Helper for 6.9 deprecation
 
-static bool inDateTimeRange(qint64 jd, bool start)
+enum class DaySide { Start, End };
+
+static bool inDateTimeRange(qint64 jd, DaySide side)
 {
     using Bounds = std::numeric_limits<qint64>;
     if (jd < Bounds::min() + JULIAN_DAY_FOR_EPOCH)
@@ -795,11 +838,16 @@ static bool inDateTimeRange(qint64 jd, bool start)
     jd -= JULIAN_DAY_FOR_EPOCH;
     const qint64 maxDay = Bounds::max() / MSECS_PER_DAY;
     const qint64 minDay = Bounds::min() / MSECS_PER_DAY - 1;
-    // (Divisions rounded towards zero, as MSECS_PER_DAY has factors other than two.)
+    // (Divisions rounded towards zero, as MSECS_PER_DAY is even - so doesn't
+    // divide max() - and has factors other than two, so doesn't divide min().)
     // Range includes start of last day and end of first:
-    if (start)
+    switch (side) {
+    case DaySide::Start:
         return jd > minDay && jd <= maxDay;
-    return jd >= minDay && jd < maxDay;
+    case DaySide::End:
+        return jd >= minDay && jd < maxDay;
+    }
+    Q_UNREACHABLE_RETURN(false);
 }
 
 static QDateTime toEarliest(QDate day, const QTimeZone &zone)
@@ -822,8 +870,8 @@ static QDateTime toEarliest(QDate day, const QTimeZone &zone)
     int low = 0;
     // Binary chop to the right minute
     while (high > low + 1) {
-        int mid = (high + low) / 2;
-        QDateTime probe = moment(QTime(mid / 60, mid % 60));
+        const int mid = (high + low) / 2;
+        const QDateTime probe = moment(QTime(mid / 60, mid % 60));
         if (probe.isValid() && probe.date() == day) {
             high = mid;
             when = probe;
@@ -831,6 +879,24 @@ static QDateTime toEarliest(QDate day, const QTimeZone &zone)
             low = mid;
         }
     }
+    // Transitions out of local solar mean time, and the few international
+    // date-line crossings before that (Alaska, Philippines), may have happened
+    // between minute boundaries. Don't try to fix milliseconds.
+    if (QDateTime p = moment(when.time().addSecs(-1)); Q_UNLIKELY(p.isValid() && p.date() == day)) {
+        high *= 60;
+        low *= 60;
+        while (high > low + 1) {
+            const int mid = (high + low) / 2;
+            const int min = mid / 60;
+            const QDateTime probe = moment(QTime(min / 60, min % 60, mid % 60));
+            if (probe.isValid() && probe.date() == day) {
+                high = mid;
+                when = probe;
+            } else {
+                low = mid;
+            }
+        }
+    }
     return when.isValid() ? when : QDateTime();
 }
 
@@ -864,11 +930,11 @@ static QDateTime toEarliest(QDate day, const QTimeZone &zone)
 */
 QDateTime QDate::startOfDay(const QTimeZone &zone) const
 {
-    if (!inDateTimeRange(jd, true) || !zone.isValid())
+    if (!inDateTimeRange(jd, DaySide::Start) || !zone.isValid())
         return QDateTime();
 
     QDateTime when(*this, QTime(0, 0), zone);
-    if (when.isValid())
+    if (Q_LIKELY(when.isValid()))
         return when;
 
 #if QT_CONFIG(timezone)
@@ -953,8 +1019,8 @@ static QDateTime toLatest(QDate day, const QTimeZone &zone)
     int low = when.time().msecsSinceStartOfDay() / 60000;
     // Binary chop to the right minute
     while (high > low + 1) {
-        int mid = (high + low) / 2;
-        QDateTime probe = moment(QTime(mid / 60, mid % 60, 59, 999));
+        const int mid = (high + low) / 2;
+        const QDateTime probe = moment(QTime(mid / 60, mid % 60, 59, 999));
         if (probe.isValid() && probe.date() == day) {
             low = mid;
             when = probe;
@@ -962,6 +1028,24 @@ static QDateTime toLatest(QDate day, const QTimeZone &zone)
             high = mid;
         }
     }
+    // Transitions out of local solar mean time, and the few international
+    // date-line crossings before that (Alaska, Philippines), may have happened
+    // between minute boundaries. Don't try to fix milliseconds.
+    if (QDateTime p = moment(when.time().addSecs(1)); Q_UNLIKELY(p.isValid() && p.date() == day)) {
+        high *= 60;
+        low *= 60;
+        while (high > low + 1) {
+            const int mid = (high + low) / 2;
+            const int min = mid / 60;
+            const QDateTime probe = moment(QTime(min / 60, min % 60, mid % 60, 999));
+            if (probe.isValid() && probe.date() == day) {
+                low = mid;
+                when = probe;
+            } else {
+                high = mid;
+            }
+        }
+    }
     return when.isValid() ? when : QDateTime();
 }
 
@@ -996,11 +1080,11 @@ static QDateTime toLatest(QDate day, const QTimeZone &zone)
 */
 QDateTime QDate::endOfDay(const QTimeZone &zone) const
 {
-    if (!inDateTimeRange(jd, false) || !zone.isValid())
+    if (!inDateTimeRange(jd, DaySide::End) || !zone.isValid())
         return QDateTime();
 
     QDateTime when(*this, QTime(23, 59, 59, 999), zone);
-    if (when.isValid())
+    if (Q_LIKELY(when.isValid()))
         return when;
 
 #if QT_CONFIG(timezone)
@@ -1216,11 +1300,9 @@ QString QDate::toString(QStringView format, QCalendar cal) const
 */
 bool QDate::setDate(int year, int month, int day)
 {
-    if (QGregorianCalendar::julianFromParts(year, month, day, &jd))
-        return true;
-
-    jd = nullJd();
-    return false;
+    const auto maybe = QGregorianCalendar::julianFromParts(year, month, day);
+    jd = maybe.value_or(nullJd());
+    return bool(maybe);
 }
 
 /*!
@@ -1511,29 +1593,6 @@ qint64 QDate::daysTo(QDate d) const
 */
 
 #if QT_CONFIG(datestring) // depends on, so implies, textdate
-namespace {
-
-struct ParsedInt { qulonglong value = 0; bool ok = false; };
-
-/*
-    /internal
-
-    Read a whole number that must be the whole text.  QStringView::toULongLong()
-    will happily ignore spaces and accept signs; but various date formats'
-    fields (e.g. all in ISO) should not.
-*/
-ParsedInt readInt(QStringView text)
-{
-    ParsedInt result;
-    for (QStringIterator it(text); it.hasNext();) {
-        if (!QChar::isDigit(it.next()))
-            return result;
-    }
-    result.value = text.toULongLong(&result.ok);
-    return result;
-}
-
-}
 
 /*!
     \fn QDate QDate::fromString(const QString &string, Qt::DateFormat format)
@@ -1591,8 +1650,8 @@ QDate QDate::fromString(QStringView string, Qt::DateFormat format)
             const ParsedInt year = readInt(string.first(4));
             const ParsedInt month = readInt(string.sliced(5, 2));
             const ParsedInt day = readInt(string.sliced(8, 2));
-            if (year.ok && year.value > 0 && year.value <= 9999 && month.ok && day.ok)
-                return QDate(year.value, month.value, day.value);
+            if (year.ok() && year.result > 0 && year.result <= 9999 && month.ok() && day.ok())
+                return QDate(year.result, month.result, day.result);
         }
         break;
     }
@@ -2139,7 +2198,7 @@ QTime QTime::addMSecs(int ms) const
 {
     QTime t;
     if (isValid())
-        t.mds = QRoundingDown::qMod(ds() + ms, MSECS_PER_DAY);
+        t.mds = QRoundingDown::qMod<MSECS_PER_DAY>(ds() + ms);
     return t;
 }
 
@@ -2264,63 +2323,63 @@ static QTime fromIsoTimeString(QStringView string, Qt::DateFormat format, bool *
 
     const ParsedInt frac = readInt(tail);
     // There must be *some* digits in a fractional part; and it must be all digits:
-    if (tail.isEmpty() ? dot != -1 || comma != -1 : !frac.ok)
+    if (tail.isEmpty() ? dot != -1 || comma != -1 : !frac.ok())
         return QTime();
-    Q_ASSERT(frac.ok ^ tail.isEmpty());
-    double fraction = frac.ok ? frac.value * std::pow(0.1, tail.size()) : 0.0;
+    Q_ASSERT(frac.ok() ^ tail.isEmpty());
+    double fraction = frac.ok() ? frac.result * std::pow(0.1, tail.size()) : 0.0;
 
     const int size = string.size();
     if (size < 2 || size > 8)
         return QTime();
 
     ParsedInt hour = readInt(string.first(2));
-    if (!hour.ok || hour.value > (format == Qt::TextDate ? 23 : 24))
+    if (!hour.ok() || hour.result > (format == Qt::TextDate ? 23 : 24))
         return QTime();
 
-    ParsedInt minute;
+    ParsedInt minute{};
     if (string.size() > 2) {
         if (string[2] == u':' && string.size() > 4)
             minute = readInt(string.sliced(3, 2));
-        if (!minute.ok || minute.value >= MINS_PER_HOUR)
+        if (!minute.ok() || minute.result >= MINS_PER_HOUR)
             return QTime();
     } else if (format == Qt::TextDate) { // Requires minutes
         return QTime();
-    } else if (frac.ok) {
+    } else if (frac.ok()) {
         Q_ASSERT(!(fraction < 0.0) && fraction < 1.0);
         fraction *= MINS_PER_HOUR;
-        minute.value = qulonglong(fraction);
-        fraction -= minute.value;
+        minute.result = qulonglong(fraction);
+        fraction -= minute.result;
     }
 
-    ParsedInt second;
+    ParsedInt second{};
     if (string.size() > 5) {
         if (string[5] == u':' && string.size() == 8)
             second = readInt(string.sliced(6, 2));
-        if (!second.ok || second.value >= SECS_PER_MIN)
+        if (!second.ok() || second.result >= SECS_PER_MIN)
             return QTime();
-    } else if (frac.ok) {
+    } else if (frac.ok()) {
         if (format == Qt::TextDate) // Doesn't allow fraction of minutes
             return QTime();
         Q_ASSERT(!(fraction < 0.0) && fraction < 1.0);
         fraction *= SECS_PER_MIN;
-        second.value = qulonglong(fraction);
-        fraction -= second.value;
+        second.result = qulonglong(fraction);
+        fraction -= second.result;
     }
 
     Q_ASSERT(!(fraction < 0.0) && fraction < 1.0);
     // Round millis to nearest (unlike minutes and seconds, rounded down):
-    int msec = frac.ok ? qRound(MSECS_PER_SEC * fraction) : 0;
+    int msec = frac.ok() ? qRound(MSECS_PER_SEC * fraction) : 0;
     // But handle overflow gracefully:
     if (msec == MSECS_PER_SEC) {
         // If we can (when data were otherwise valid) validly propagate overflow
         // into other fields, do so:
-        if (isMidnight24 || hour.value < 23 || minute.value < 59 || second.value < 59) {
+        if (isMidnight24 || hour.result < 23 || minute.result < 59 || second.result < 59) {
             msec = 0;
-            if (++second.value == SECS_PER_MIN) {
-                second.value = 0;
-                if (++minute.value == MINS_PER_HOUR) {
-                    minute.value = 0;
-                    ++hour.value;
+            if (++second.result == SECS_PER_MIN) {
+                second.result = 0;
+                if (++minute.result == MINS_PER_HOUR) {
+                    minute.result = 0;
+                    ++hour.result;
                     // May need to propagate further via isMidnight24, see below
                 }
             }
@@ -2332,14 +2391,14 @@ static QTime fromIsoTimeString(QStringView string, Qt::DateFormat format, bool *
     }
 
     // For ISO date format, 24:0:0 means 0:0:0 on the next day:
-    if (hour.value == 24 && minute.value == 0 && second.value == 0 && msec == 0) {
+    if (hour.result == 24 && minute.result == 0 && second.result == 0 && msec == 0) {
         Q_ASSERT(format != Qt::TextDate); // It clipped hour at 23, above.
         if (isMidnight24)
             *isMidnight24 = true;
-        hour.value = 0;
+        hour.result = 0;
     }
 
-    return QTime(hour.value, minute.value, second.value, msec);
+    return QTime(hour.result, minute.result, second.result, msec);
 }
 
 /*!
@@ -2507,7 +2566,7 @@ typedef QDateTimePrivate::QDateTimeData QDateTimeData;
 // Converts milliseconds since the start of 1970 into a date and/or time:
 static qint64 msecsToJulianDay(qint64 msecs)
 {
-    return JULIAN_DAY_FOR_EPOCH + QRoundingDown::qDiv(msecs, MSECS_PER_DAY);
+    return JULIAN_DAY_FOR_EPOCH + QRoundingDown::qDiv<MSECS_PER_DAY>(msecs);
 }
 
 static QDate msecsToDate(qint64 msecs)
@@ -2517,7 +2576,7 @@ static QDate msecsToDate(qint64 msecs)
 
 static QTime msecsToTime(qint64 msecs)
 {
-    return QTime::fromMSecsSinceStartOfDay(QRoundingDown::qMod(msecs, MSECS_PER_DAY));
+    return QTime::fromMSecsSinceStartOfDay(QRoundingDown::qMod<MSECS_PER_DAY>(msecs));
 }
 
 // True if combining days with millis overflows; otherwise, stores result in *sumMillis
@@ -2634,10 +2693,11 @@ QDateTimePrivate::ZoneState QDateTimePrivate::expressUtcAsLocal(qint64 utcMSecs)
     // dates might be right, and adjust by the number of days that was off:
     const qint64 jd = msecsToJulianDay(utcMSecs);
     const auto ymd = QGregorianCalendar::partsFromJulian(jd);
-    qint64 fakeJd, diffMillis, fakeUtc;
-    if (Q_UNLIKELY(!QGregorianCalendar::julianFromParts(systemTimeYearMatching(ymd.year),
-                                                        ymd.month, ymd.day, &fakeJd)
-                   || qMulOverflow(jd - fakeJd, std::integral_constant<qint64, MSECS_PER_DAY>(),
+    qint64 diffMillis, fakeUtc;
+    const auto fakeJd = QGregorianCalendar::julianFromParts(systemTimeYearMatching(ymd.year),
+                                                            ymd.month, ymd.day);
+    if (Q_UNLIKELY(!fakeJd
+                   || qMulOverflow(jd - *fakeJd, std::integral_constant<qint64, MSECS_PER_DAY>(),
                                    &diffMillis)
                    || qSubOverflow(utcMSecs, diffMillis, &fakeUtc))) {
         return result;
@@ -2660,11 +2720,11 @@ static auto millisToWithinRange(qint64 millis)
         qint64 shifted = 0;
         bool good = false;
     } result;
-    qint64 jd = msecsToJulianDay(millis), fakeJd;
+    qint64 jd = msecsToJulianDay(millis);
     auto ymd = QGregorianCalendar::partsFromJulian(jd);
-    result.good = QGregorianCalendar::julianFromParts(systemTimeYearMatching(ymd.year),
-                                                      ymd.month, ymd.day, &fakeJd)
-        && !daysAndMillisOverflow(fakeJd - jd, millis, &result.shifted);
+    const auto fakeJd = QGregorianCalendar::julianFromParts(systemTimeYearMatching(ymd.year),
+                                                            ymd.month, ymd.day);
+    result.good = fakeJd && !daysAndMillisOverflow(*fakeJd - jd, millis, &result.shifted);
     return result;
 }
 
@@ -2782,7 +2842,7 @@ static inline bool specCanBeSmall(Qt::TimeSpec spec)
 
 static inline bool msecsCanBeSmall(qint64 msecs)
 {
-    if (!QDateTimeData::CanBeSmall)
+    if constexpr (!QDateTimeData::CanBeSmall)
         return false;
 
     ShortData sd;
@@ -3053,12 +3113,12 @@ static QPair<QDate, QTime> getDateTime(const QDateTimeData &d)
 {
     auto status = getStatus(d);
     const qint64 msecs = getMSecs(d);
-    const qint64 days = QRoundingDown::qDiv(msecs, MSECS_PER_DAY);
+    const auto dayMilli = QRoundingDown::qDivMod<MSECS_PER_DAY>(msecs);
     return { status.testFlag(QDateTimePrivate::ValidDate)
-            ? QDate::fromJulianDay(JULIAN_DAY_FOR_EPOCH + days)
+            ? QDate::fromJulianDay(JULIAN_DAY_FOR_EPOCH + dayMilli.quotient)
             : QDate(),
             status.testFlag(QDateTimePrivate::ValidTime)
-            ? QTime::fromMSecsSinceStartOfDay(msecs - days * MSECS_PER_DAY)
+            ? QTime::fromMSecsSinceStartOfDay(dayMilli.remainder)
             : QTime() };
 }
 
@@ -3161,7 +3221,7 @@ inline bool QDateTime::Data::isShort() const
 
     // even if CanBeSmall = false, we have short data for a default-constructed
     // QDateTime object. But it's unlikely.
-    if (CanBeSmall)
+    if constexpr (CanBeSmall)
         return Q_LIKELY(b);
     return Q_UNLIKELY(b);
 }
@@ -5567,7 +5627,11 @@ QDebug operator<<(QDebug dbg, QDate date)
     QDebugStateSaver saver(dbg);
     dbg.nospace() << "QDate(";
     if (date.isValid())
-        dbg.nospace() << date.toString(Qt::ISODate);
+        // QTBUG-91070, ISODate only supports years in the range 0-9999
+        if (int y = date.year(); y > 0 && y <= 9999)
+            dbg.nospace() << date.toString(Qt::ISODate);
+        else
+            dbg.nospace() << date.toString(Qt::TextDate);
     else
         dbg.nospace() << "Invalid";
     dbg.nospace() << ')';
diff --git a/src/corelib/time/qdatetime.h b/src/corelib/time/qdatetime.h
index 50760134..5f41fa47 100644
--- a/src/corelib/time/qdatetime.h
+++ b/src/corelib/time/qdatetime.h
@@ -281,12 +281,10 @@ class Q_CORE_EXPORT QDateTime
     };
 
     union Data {
-        enum {
-            // To be of any use, we need at least 60 years around 1970, which
-            // is 1,893,456,000,000 ms. That requires 41 bits to store, plus
-            // the sign bit. With the status byte, the minimum size is 50 bits.
-            CanBeSmall = sizeof(ShortData) * 8 > 50
-        };
+        // To be of any use, we need at least 60 years around 1970, which
+        // is 1,893,456,000,000 ms. That requires 41 bits to store, plus
+        // the sign bit. With the status byte, the minimum size is 50 bits.
+        static constexpr bool CanBeSmall = sizeof(ShortData) * 8 > 50;
 
         Data() noexcept;
         Data(const QTimeZone &);
diff --git a/src/corelib/time/qdatetime_p.h b/src/corelib/time/qdatetime_p.h
index ab91ec33..bd4e1e33 100644
--- a/src/corelib/time/qdatetime_p.h
+++ b/src/corelib/time/qdatetime_p.h
@@ -122,6 +122,9 @@ constexpr qint64 MSECS_PER_HOUR = SECS_PER_HOUR * MSECS_PER_SEC;
 constexpr qint64 MSECS_PER_DAY = SECS_PER_DAY * MSECS_PER_SEC;
 
 constexpr qint64 JULIAN_DAY_FOR_EPOCH = 2440588; // result of QDate(1970, 1, 1).toJulianDay()
+
+constexpr qint64 JulianDayMax = Q_INT64_C( 784354017364);
+constexpr qint64 JulianDayMin = Q_INT64_C(-784350574879);
 }
 }
 
diff --git a/src/corelib/time/qdatetimeparser.cpp b/src/corelib/time/qdatetimeparser.cpp
index 58abd645..64679810 100644
--- a/src/corelib/time/qdatetimeparser.cpp
+++ b/src/corelib/time/qdatetimeparser.cpp
@@ -3,7 +3,6 @@
 
 #include "qplatformdefs.h"
 #include "private/qdatetimeparser_p.h"
-#include "private/qstringiterator_p.h"
 
 #include "qdatastream.h"
 #include "qdatetime.h"
@@ -12,6 +11,10 @@
 #include "qset.h"
 #include "qtimezone.h"
 #include "qvarlengtharray.h"
+#include "private/qlocale_p.h"
+
+#include "private/qstringiterator_p.h"
+#include "private/qtenvironmentvariables_p.h"
 
 //#define QDATETIMEPARSER_DEBUG
 #if defined (QDATETIMEPARSER_DEBUG) && !defined(QT_NO_DEBUG_STREAM)
@@ -369,9 +372,9 @@ static qsizetype digitCount(QStringView str)
   not escaped and removes the escaping on those that are escaped
 
 */
-
 static QString unquote(QStringView str)
 {
+    // ### Align unquoting format strings for both from/toString(), QTBUG-110669
     const QLatin1Char quote('\'');
     const QLatin1Char slash('\\');
     const QLatin1Char zero('0');
@@ -396,14 +399,10 @@ static QString unquote(QStringView str)
 static inline int countRepeat(QStringView str, int index, int maxCount)
 {
     str = str.sliced(index);
-    if (maxCount > str.size())
-        maxCount = str.size();
+    if (maxCount < str.size())
+        str = str.first(maxCount);
 
-    const QChar ch(str[0]);
-    int count = 1;
-    while (count < maxCount && str[count] == ch)
-        ++count;
-    return count;
+    return qt_repeatCount(str);
 }
 
 static inline void appendSeparator(QStringList *list, QStringView string,
@@ -907,7 +906,7 @@ QDateTimeParser::parseSection(const QDateTime &currentValue, int sectionIndex, i
             const int absMax = absoluteMax(sectionIndex);
             const int absMin = absoluteMin(sectionIndex);
 
-            int last = -1;
+            int lastVal = -1;
 
             for (; digitsStr.size(); digitsStr.chop(1)) {
                 bool ok = false;
@@ -923,49 +922,49 @@ QDateTimeParser::parseSection(const QDateTime &currentValue, int sectionIndex, i
                 }
 
                 QDTPDEBUG << digitsStr << value << digitsStr.size();
-                last = value;
+                lastVal = value;
                 used += digitsStr.size();
                 break;
             }
 
-            if (last == -1) {
+            if (lastVal == -1) {
                 if (!checkSeparator()) {
                     QDTPDEBUG << "invalid because" << sectionTextRef << "can't become a uint"
-                              << last;
+                              << lastVal;
                 }
             } else {
                 if (negate)
-                    last = -last;
+                    lastVal = -lastVal;
                 const FieldInfo fi = fieldInfo(sectionIndex);
                 const bool unfilled = used - negativeYearOffset < sectionmaxsize;
                 if (unfilled && fi & Fraction) { // typing 2 in a zzz field should be .200, not .002
                     for (int i = used; i < sectionmaxsize; ++i)
-                        last *= 10;
+                        lastVal *= 10;
                 }
                 // Even those *= 10s can't take last above absMax:
-                Q_ASSERT(negate ? last >= absMin : last <= absMax);
-                if (negate ? last > absMax : last < absMin) {
+                Q_ASSERT(negate ? lastVal >= absMin : lastVal <= absMax);
+                if (negate ? lastVal > absMax : lastVal < absMin) {
                     if (unfilled) {
-                        result = ParsedSection(Intermediate, last, used);
+                        result = ParsedSection(Intermediate, lastVal, used);
                     } else if (negate) {
-                        QDTPDEBUG << "invalid because" << last << "is greater than absoluteMax"
+                        QDTPDEBUG << "invalid because" << lastVal << "is greater than absoluteMax"
                                   << absMax;
                     } else {
-                        QDTPDEBUG << "invalid because" << last << "is less than absoluteMin"
+                        QDTPDEBUG << "invalid because" << lastVal << "is less than absoluteMin"
                                   << absMin;
                     }
 
                 } else if (unfilled && (fi & (FixedWidth | Numeric)) == (FixedWidth | Numeric)) {
                     if (skipToNextSection(sectionIndex, defaultValue, digitsStr)) {
                         const int missingZeroes = sectionmaxsize - digitsStr.size();
-                        result = ParsedSection(Acceptable, last, sectionmaxsize, missingZeroes);
+                        result = ParsedSection(Acceptable, lastVal, sectionmaxsize, missingZeroes);
                         m_text.insert(offset, QString(missingZeroes, u'0'));
                         ++(const_cast<QDateTimeParser*>(this)->sectionNodes[sectionIndex].zeroesAdded);
                     } else {
-                        result = ParsedSection(Intermediate, last, used);;
+                        result = ParsedSection(Intermediate, lastVal, used);;
                     }
                 } else {
-                    result = ParsedSection(Acceptable, last, used);
+                    result = ParsedSection(Acceptable, lastVal, used);
                 }
             }
         }
@@ -1181,6 +1180,24 @@ static QTime actualTime(QDateTimeParser::Sections known,
     return actual;
 }
 
+/*
+  \internal
+*/
+static int startsWithLocalTimeZone(QStringView name, const QDateTime &when)
+{
+    // On MS-Win, at least when system zone is UTC, the tzname[]s may be empty.
+    for (int i = 0; i < 2; ++i) {
+        const QString zone(qTzName(i));
+        if (!zone.isEmpty() && name.startsWith(zone))
+            return zone.size();
+    }
+    // Mimic what QLocale::toString() would have used, to ensure round-trips work:
+    const QString local = QDateTime(when.date(), when.time()).timeZoneAbbreviation();
+    if (name.startsWith(local))
+        return local.size();
+    return 0;
+}
+
 /*!
   \internal
 */
@@ -1914,20 +1931,21 @@ QDateTimeParser::AmPmFinder QDateTimeParser::findAmPm(QString &str, int sectionI
 
     bool broken[2] = {false, false};
     for (int i=0; i<size; ++i) {
-        if (str.at(i) != space) {
+        const QChar ch = str.at(i);
+        if (ch != space) {
             for (int j=0; j<2; ++j) {
                 if (!broken[j]) {
-                    int index = ampm[j].indexOf(str.at(i));
-                    QDTPDEBUG << "looking for" << str.at(i)
+                    int index = ampm[j].indexOf(ch);
+                    QDTPDEBUG << "looking for" << ch
                               << "in" << ampm[j] << "and got" << index;
                     if (index == -1) {
-                        if (str.at(i).category() == QChar::Letter_Uppercase) {
-                            index = ampm[j].indexOf(str.at(i).toLower());
-                            QDTPDEBUG << "trying with" << str.at(i).toLower()
+                        if (ch.category() == QChar::Letter_Uppercase) {
+                            index = ampm[j].indexOf(ch.toLower());
+                            QDTPDEBUG << "trying with" << ch.toLower()
                                       << "in" << ampm[j] << "and got" << index;
-                        } else if (str.at(i).category() == QChar::Letter_Lowercase) {
-                            index = ampm[j].indexOf(str.at(i).toUpper());
-                            QDTPDEBUG << "trying with" << str.at(i).toUpper()
+                        } else if (ch.category() == QChar::Letter_Lowercase) {
+                            index = ampm[j].indexOf(ch.toUpper());
+                            QDTPDEBUG << "trying with" << ch.toUpper()
                                       << "in" << ampm[j] << "and got" << index;
                         }
                         if (index == -1) {
@@ -2211,8 +2229,8 @@ bool QDateTimeParser::fromString(const QString &t, QDate *date, QTime *time) con
 // Only called when we want both date and time; default to local time.
 bool QDateTimeParser::fromString(const QString &t, QDateTime *datetime) const
 {
-    QDateTime val(QDate(1900, 1, 1).startOfDay());
-    const StateNode tmp = parse(t, -1, val, false);
+    static const QDateTime defaultLocalTime = QDate(1900, 1, 1).startOfDay();
+    const StateNode tmp = parse(t, -1, defaultLocalTime, false);
     if (datetime)
         *datetime = tmp.value;
     return tmp.state == Acceptable && !tmp.conflicts && tmp.value.isValid();
diff --git a/src/corelib/time/qdatetimeparser_p.h b/src/corelib/time/qdatetimeparser_p.h
index c539d2c2..64ced268 100644
--- a/src/corelib/time/qdatetimeparser_p.h
+++ b/src/corelib/time/qdatetimeparser_p.h
@@ -177,8 +177,6 @@ private:
     ParsedSection findTimeZoneName(QStringView str, const QDateTime &when) const;
     ParsedSection findTimeZone(QStringView str, const QDateTime &when,
                                int maxVal, int minVal, int mode) const;
-    // Implemented in qlocaltime.cpp:
-    static int startsWithLocalTimeZone(const QStringView name, const QDateTime &when);
 
     enum AmPmFinder {
         Neither = -1,
diff --git a/src/corelib/time/qgregoriancalendar.cpp b/src/corelib/time/qgregoriancalendar.cpp
index dc5a677f..7db32e4c 100644
--- a/src/corelib/time/qgregoriancalendar.cpp
+++ b/src/corelib/time/qgregoriancalendar.cpp
@@ -3,12 +3,32 @@
 
 #include "qgregoriancalendar_p.h"
 #include "qcalendarmath_p.h"
+
 #include <QtCore/qdatetime.h>
 
 QT_BEGIN_NAMESPACE
 
 using namespace QRoundingDown;
 
+// Verification that QRoundingDown::qDivMod() works correctly:
+static_assert(qDivMod<2>(-86400).quotient == -43200);
+static_assert(qDivMod<2>(-86400).remainder == 0);
+static_assert(qDivMod<86400>(-86400).quotient == -1);
+static_assert(qDivMod<86400>(-86400).remainder == 0);
+static_assert(qDivMod<86400>(-86401).quotient == -2);
+static_assert(qDivMod<86400>(-86401).remainder == 86399);
+static_assert(qDivMod<86400>(-100000).quotient == -2);
+static_assert(qDivMod<86400>(-100000).remainder == 72800);
+static_assert(qDivMod<86400>(-172799).quotient == -2);
+static_assert(qDivMod<86400>(-172799).remainder == 1);
+static_assert(qDivMod<86400>(-172800).quotient == -2);
+static_assert(qDivMod<86400>(-172800).remainder == 0);
+
+// Uncomment to verify error on bad denominator is clear and intelligible:
+// static_assert(qDivMod<1>(17).remainder == 0);
+// static_assert(qDivMod<0>(17).remainder == 0);
+// static_assert(qDivMod<std::numeric_limits<unsigned>::max()>(17).remainder == 0);
+
 /*!
     \since 5.14
 
@@ -73,41 +93,27 @@ bool QGregorianCalendar::validParts(int year, int month, int day)
 
 int QGregorianCalendar::weekDayOfJulian(qint64 jd)
 {
-    return qMod(jd, 7) + 1;
+    return int(qMod<7>(jd) + 1);
 }
 
 bool QGregorianCalendar::dateToJulianDay(int year, int month, int day, qint64 *jd) const
 {
-    return julianFromParts(year, month, day, jd);
+    const auto maybe = julianFromParts(year, month, day);
+    if (maybe)
+        *jd = *maybe;
+    return bool(maybe);
 }
 
-bool QGregorianCalendar::julianFromParts(int year, int month, int day, qint64 *jd)
+QCalendar::YearMonthDay QGregorianCalendar::julianDayToDate(qint64 jd) const
 {
-    Q_ASSERT(jd);
-    if (!validParts(year, month, day))
-        return false;
-
-    if (year < 0)
-        ++year;
-
-    /*
-     * Math from The Calendar FAQ at http://www.tondering.dk/claus/cal/julperiod.php
-     * This formula is correct for all julian days, when using mathematical integer
-     * division (round to negative infinity), not c++11 integer division (round to zero)
-     */
-    int    a = month < 3 ? 1 : 0;
-    qint64 y = qint64(year) + 4800 - a;
-    int    m = month + 12 * a - 3;
-    *jd = day + qDiv(153 * m + 2, 5) - 32045
-        + 365 * y + qDiv(y, 4) - qDiv(y, 100) + qDiv(y, 400);
-    return true;
+    return partsFromJulian(jd);
 }
 
 int QGregorianCalendar::yearStartWeekDay(int year)
 {
     // Equivalent to weekDayOfJulian(julianForParts({year, 1, 1})
     const int y = year - (year < 0 ? 800 : 801);
-    return qMod(y + qDiv(y, 4) - qDiv(y, 100) + qDiv(y, 400), 7) + 1;
+    return qMod<7>(y + qDiv<4>(y) - qDiv<100>(y) + qDiv<400>(y)) + 1;
 }
 
 int QGregorianCalendar::yearSharingWeekDays(QDate date)
@@ -156,34 +162,52 @@ int QGregorianCalendar::yearSharingWeekDays(QDate date)
     return res;
 }
 
-QCalendar::YearMonthDay QGregorianCalendar::julianDayToDate(qint64 jd) const
+/*
+ * Math from The Calendar FAQ at http://www.tondering.dk/claus/cal/julperiod.php
+ * This formula is correct for all julian days, when using mathematical integer
+ * division (round to negative infinity), not c++11 integer division (round to zero).
+ *
+ * The source given uses 4801 BCE as base date; the following adjusts that by
+ * 4800 years to simplify part of the arithmetic (and match more closely what we
+ * do for Milankovic).
+ */
+
+using namespace QRomanCalendrical;
+// End a Gregorian four-century cycle on 1 BC's leap day:
+constexpr qint64 BaseJd = LeapDayGregorian1Bce;
+// Every four centures there are 97 leap years:
+constexpr unsigned FourCenturies = 400 * 365 + 97;
+
+std::optional<qint64> QGregorianCalendar::julianFromParts(int year, int month, int day)
 {
-    return partsFromJulian(jd);
+    if (!validParts(year, month, day))
+        return std::nullopt;
+
+    const auto yearDays = yearMonthToYearDays(year, month);
+    const qint64 y = yearDays.year;
+    const qint64 fromYear = 365 * y + qDiv<4>(y) - qDiv<100>(y) + qDiv<400>(y);
+    return fromYear + yearDays.days + day + BaseJd;
 }
 
 QCalendar::YearMonthDay QGregorianCalendar::partsFromJulian(qint64 jd)
 {
-    /*
-     * Math from The Calendar FAQ at http://www.tondering.dk/claus/cal/julperiod.php
-     * This formula is correct for all julian days, when using mathematical integer
-     * division (round to negative infinity), not c++11 integer division (round to zero)
-     */
-    qint64 a = jd + 32044;
-    qint64 b = qDiv(4 * a + 3, 146097);
-    int    c = a - qDiv(146097 * b, 4);
+    const qint64 dayNumber = jd - BaseJd;
+    const qint64 century = qDiv<FourCenturies>(4 * dayNumber - 1);
+    const int dayInCentury = dayNumber - qDiv<4>(FourCenturies * century);
 
-    int    d = qDiv(4 * c + 3, 1461);
-    int    e = c - qDiv(1461 * d, 4);
-    int    m = qDiv(5 * e + 2, 153);
+    const int yearInCentury = qDiv<FourYears>(4 * dayInCentury - 1);
+    const int dayInYear = dayInCentury - qDiv<4>(FourYears * yearInCentury);
+    const int m = qDiv<FiveMonths>(5 * dayInYear - 3);
+    Q_ASSERT(m < 12 && m >= 0);
+    // That m is a month adjusted to March = 0, with Jan = 10, Feb = 11 in the previous year.
+    const int yearOffset = m < 10 ? 0 : 1;
 
-    int y = 100 * b + d - 4800 + qDiv(m, 10);
+    const int y = 100 * century + yearInCentury + yearOffset;
+    const int month = m + 3 - 12 * yearOffset;
+    const int day = dayInYear - qDiv<5>(FiveMonths * m + 2);
 
     // Adjust for no year 0
-    int year = y > 0 ? y : y - 1;
-    int month = m + 3 - 12 * qDiv(m, 10);
-    int day = e - qDiv(153 * m + 2, 5) + 1;
-
-    return QCalendar::YearMonthDay(year, month, day);
+    return QCalendar::YearMonthDay(y > 0 ? y : y - 1, month, day);
 }
 
 QT_END_NAMESPACE
diff --git a/src/corelib/time/qgregoriancalendar_p.h b/src/corelib/time/qgregoriancalendar_p.h
index dc409375..ed950ecf 100644
--- a/src/corelib/time/qgregoriancalendar_p.h
+++ b/src/corelib/time/qgregoriancalendar_p.h
@@ -17,6 +17,8 @@
 
 #include "qromancalendar_p.h"
 
+#include <optional>
+
 QT_BEGIN_NAMESPACE
 
 class Q_CORE_EXPORT QGregorianCalendar : public QRomanCalendar
@@ -45,7 +47,7 @@ public:
     static int monthLength(int month, int year);
     static bool validParts(int year, int month, int day);
     static QCalendar::YearMonthDay partsFromJulian(qint64 jd);
-    static bool julianFromParts(int year, int month, int day, qint64 *jd);
+    static std::optional<qint64> julianFromParts(int year, int month, int day);
     // Used internally:
     static int yearStartWeekDay(int year);
     static int yearSharingWeekDays(QDate date);
diff --git a/src/corelib/time/qhijricalendar_data_p.h b/src/corelib/time/qhijricalendar_data_p.h
index c3c0b681..70541ce3 100644
--- a/src/corelib/time/qhijricalendar_data_p.h
+++ b/src/corelib/time/qhijricalendar_data_p.h
@@ -25,7 +25,7 @@ namespace QtPrivate::Hijri {
 // GENERATED PART STARTS HERE
 
 /*
-    This part of the file was generated on 2023-08-03 from the
+    This part of the file was generated on 2023-07-27 from the
     Common Locale Data Repository v43
 
     http://www.unicode.org/cldr/
diff --git a/src/corelib/time/qislamiccivilcalendar.cpp b/src/corelib/time/qislamiccivilcalendar.cpp
index 23854410..ac1f97cb 100644
--- a/src/corelib/time/qislamiccivilcalendar.cpp
+++ b/src/corelib/time/qislamiccivilcalendar.cpp
@@ -4,7 +4,6 @@
 #include "qglobal.h"
 #include "qislamiccivilcalendar_p.h"
 #include "qcalendarmath_p.h"
-#include <QtCore/qmath.h>
 
 QT_BEGIN_NAMESPACE
 
@@ -58,30 +57,37 @@ bool QIslamicCivilCalendar::isLeapYear(int year) const
         return false;
     if (year < 0)
         ++year;
-    return qMod(year * 11 + 14, 30) < 11;
+    return qMod<30>(year * 11 + 14) < 11;
 }
 
+// First day of first year (Gregorian 622 CE July 19th) is the base date here:
+constexpr qint64 EpochJd = 1948440;
+// Each 30 years has 11 leap years of 355 days and 19 ordinary years of 354:
+constexpr unsigned ThirtyYears = 11 * 355 + 19 * 354;
+// The first eleven months of the year alternate 30, 29, ..., 29, 30 days in length.
+constexpr unsigned ElevenMonths = 6 * 30 + 5 * 29;
+
 bool QIslamicCivilCalendar::dateToJulianDay(int year, int month, int day, qint64 *jd) const
 {
     Q_ASSERT(jd);
     if (!isDateValid(year, month, day))
         return false;
-    if (year <= 0)
-        ++year;
-    *jd = qDiv(10631 * year - 10617, 30)
-            + qDiv(325 * month - 320, 11)
-            + day + 1948439;
+
+    *jd = qDiv<30>(qint64(ThirtyYears) * (year > 0 ? year - 1 : year) + 14)
+        + qDiv<11>(ElevenMonths * (month - 1) + 5)
+        + day + EpochJd - 1;
     return true;
 }
 
 QCalendar::YearMonthDay QIslamicCivilCalendar::julianDayToDate(qint64 jd) const
 {
-    const qint64 epoch = 1948440;
-    const int32_t k2 = 30 * (jd - epoch) + 15;
-    const int32_t k1 = 11 * qDiv(qMod(k2, 10631), 30) + 5;
-    int y = qDiv(k2, 10631) + 1;
-    const int month = qDiv(k1, 325) + 1;
-    const int day = qDiv(qMod(k1, 325), 11) + 1;
+    const auto year30Day = qDivMod<ThirtyYears>(30 * (jd - EpochJd) + 15);
+    // Its remainder changes by 30 per day, except roughly yearly.
+    const auto month11Day = qDivMod<ElevenMonths>(11 * qDiv<30>(year30Day.remainder) + 5);
+    // Its remainder changes by 11 per day except roughly monthly.
+    const int month = month11Day.quotient + 1;
+    const int day = qDiv<11>(month11Day.remainder) + 1;
+    const int y = year30Day.quotient + 1;
     return QCalendar::YearMonthDay(y > 0 ? y : y - 1, month, day);
 }
 
diff --git a/src/corelib/time/qjalalicalendar.cpp b/src/corelib/time/qjalalicalendar.cpp
index b796b651..fcbdf143 100644
--- a/src/corelib/time/qjalalicalendar.cpp
+++ b/src/corelib/time/qjalalicalendar.cpp
@@ -13,16 +13,17 @@ using namespace QRoundingDown;
 
 // Constants
 
-static const qint64 cycleDays = 1029983;
-static const int cycleYears = 2820;
-static const double yearLength = 365.24219858156028368; // 365 + leapRatio;
-static const qint64 jalaliEpoch = 2121446; // 475/01/01 AP, start of 2820 cycle
+constexpr qint64 cycleDays = 1029983;
+constexpr int cycleYears = 2820;
+constexpr double yearLength = 365.24219858156028368; // 365 + 683 / 2820.
+constexpr qint64 jalaliEpoch = 2121446; // 475/01/01 AP, start of 2820 cycle
+// This appears to be based on Ahmad Birashk's algorithm.
 
 // Calendar implementation
 
 static inline int cycle(qint64 jdn)
 {
-    return qDiv(jdn - jalaliEpoch, cycleDays);
+    return qDiv<cycleDays>(jdn - jalaliEpoch);
 }
 
 qint64 cycleStart(int cycleNo)
@@ -75,7 +76,7 @@ qint64 firstDayOfYear(int year, int cycleNo)
 
     Source: \l {https://en.wikipedia.org/wiki/Solar_Hijri_calendar}{Wikipedia
     page on Solar Hijri Calendar}
- */
+*/
 
 QString QJalaliCalendar::name() const
 {
@@ -96,7 +97,7 @@ bool QJalaliCalendar::isLeapYear(int year) const
         return false;
     if (year < 0)
         year++;
-    return qMod((year + 2346) * 683, 2820) < 683;
+    return qMod<2820>((year + 2346) * 683) < 683;
 }
 
 bool QJalaliCalendar::isLunar() const
@@ -121,7 +122,7 @@ bool QJalaliCalendar::dateToJulianDay(int year, int month, int day, qint64 *jd)
         return false;
 
     const int y = year - (year < 0 ? 474 : 475);
-    const int c = qDiv(y, cycleYears);
+    const int c = qDiv<cycleYears>(y);
     const int yearInCycle = y - c * cycleYears;
     int dayInYear = day;
     for (int i = 1; i < month; ++i)
diff --git a/src/corelib/time/qjalalicalendar_data_p.h b/src/corelib/time/qjalalicalendar_data_p.h
index e8cdb85e..1b07056d 100644
--- a/src/corelib/time/qjalalicalendar_data_p.h
+++ b/src/corelib/time/qjalalicalendar_data_p.h
@@ -25,7 +25,7 @@ namespace QtPrivate::Jalali {
 // GENERATED PART STARTS HERE
 
 /*
-    This part of the file was generated on 2023-08-03 from the
+    This part of the file was generated on 2023-07-27 from the
     Common Locale Data Repository v43
 
     http://www.unicode.org/cldr/
diff --git a/src/corelib/time/qjuliancalendar.cpp b/src/corelib/time/qjuliancalendar.cpp
index 627c92c4..1439ae3e 100644
--- a/src/corelib/time/qjuliancalendar.cpp
+++ b/src/corelib/time/qjuliancalendar.cpp
@@ -5,8 +5,7 @@
 #include "qjuliancalendar_p.h"
 #include "qromancalendar_data_p.h"
 #include "qcalendarmath_p.h"
-#include <QtCore/qmath.h>
-#include <QtCore/qlocale.h>
+
 #include <QtCore/qdatetime.h>
 
 QT_BEGIN_NAMESPACE
@@ -54,36 +53,32 @@ bool QJulianCalendar::isLeapYear(int year) const
     if (year == QCalendar::Unspecified || !year)
         return false;
 
-    return qMod(year < 0 ? year + 1 : year, 4) == 0;
+    return qMod<4>(year < 0 ? year + 1 : year) == 0;
 }
 
-// Julian Day 0 was January the first in the proleptic Julian calendar's 4713 BC
+// Julian Day 0 was January the first in the proleptic Julian calendar's 4713 BC.
+using namespace QRomanCalendrical;
+// End a Julian four-year cycle on 1 BC's leap day (Gregorian Feb 27th):
+constexpr qint64 JulianBaseJd = LeapDayGregorian1Bce - 2;
 
 bool QJulianCalendar::dateToJulianDay(int year, int month, int day, qint64 *jd) const
 {
     Q_ASSERT(jd);
     if (!isDateValid(year, month, day))
         return false;
-    if (year < 0)
-        ++year;
-    const qint64 c0 = month < 3 ? -1 : 0;
-    const qint64 j1 = qDiv(1461 * (year + c0), 4);
-    const qint64 j2 = qDiv(153 * month - 1836 * c0 - 457, 5);
-    *jd = j1 + j2 + day + 1721117;
+
+    const auto yearDays = yearMonthToYearDays(year, month);
+    *jd = qDiv<4>(FourYears * yearDays.year) + yearDays.days + day + JulianBaseJd;
     return true;
 }
 
 QCalendar::YearMonthDay QJulianCalendar::julianDayToDate(qint64 jd) const
 {
-    const qint64 y2 = jd - 1721118;
-    const qint64 k2 = 4 * y2 + 3;
-    const qint64 k1 = 5 * qDiv(qMod(k2, 1461), 4) + 2;
-    const qint64 x1 = qDiv(k1, 153);
-    const qint64 c0 = qDiv(x1 + 2, 12);
-    const int y = qint16(qDiv(k2, 1461) + c0);
-    const int month = quint8(x1 - 12 * c0 + 3);
-    const int day = qDiv(qMod(k1, 153), 5) + 1;
-    return QCalendar::YearMonthDay(y > 0 ? y : y - 1, month, day);
+    const auto year4Day = qDivMod<FourYears>(4 * (jd - JulianBaseJd) - 1);
+    // Its remainder changes by 4 per day, except at roughly yearly quotient steps.
+    const auto ymd = dayInYearToYmd(qDiv<4>(year4Day.remainder));
+    const int y = year4Day.quotient + ymd.year;
+    return QCalendar::YearMonthDay(y > 0 ? y : y - 1, ymd.month, ymd.day);
 }
 
 QT_END_NAMESPACE
diff --git a/src/corelib/time/qlocaltime.cpp b/src/corelib/time/qlocaltime.cpp
index 5709fefa..e059b30b 100644
--- a/src/corelib/time/qlocaltime.cpp
+++ b/src/corelib/time/qlocaltime.cpp
@@ -10,6 +10,7 @@
 #endif
 #include "private/qgregoriancalendar_p.h"
 #include "private/qnumeric_p.h"
+#include "private/qtenvironmentvariables_p.h"
 #if QT_CONFIG(timezone)
 #include "private/qtimezoneprivate_p.h"
 #endif
@@ -164,132 +165,12 @@ struct tm timeToTm(qint64 localDay, int secs, QDateTimePrivate::DaylightStatus d
     return local;
 }
 
-bool qtLocalTime(time_t utc, struct tm *local)
+inline std::optional<qint64> tmToJd(const struct tm &date)
 {
-    // This should really be done under the environmentMutex wrapper qglobal.cpp
-    // uses in qTzSet() and friends. However, the only sane way to do that would
-    // be to move this whole function there (and replace its qTzSet() with a
-    // naked tzset(), since it'd already be mutex-protected).
-#if defined(Q_OS_WIN)
-    // The doc of localtime_s() says that localtime_s() corrects for the same
-    // things _tzset() sets the globals for, but doesn't explicitly say that it
-    // calls _tzset(), and QTBUG-109974 reveals the need for a _tzset() call.
-    qTzSet();
-    return !localtime_s(local, &utc);
-#elif QT_CONFIG(thread) && defined(_POSIX_THREAD_SAFE_FUNCTIONS)
-    // Use the reentrant version of localtime() where available, as it is
-    // thread-safe and doesn't use a shared static data area.
-    // As localtime() is specified to work as if it called tzset(), but
-    // localtime_r() does not have this constraint, make an explicit call.
-    // The explicit call should also request a re-parse of timezone info.
-    qTzSet();
-    if (tm *res = localtime_r(&utc, local)) {
-        Q_ASSERT(res == local);
-        return true;
-    }
-    return false;
-#else
-    // POSIX mandates that localtime() behaves as if it called tzset().
-    // Returns shared static data which may be overwritten at any time
-    // So copy the result asap:
-    if (tm *res = localtime(&utc)) {
-        *local = *res;
-        return true;
-    }
-    return false;
-#endif
+    return QGregorianCalendar::julianFromParts(qYearFromTmYear(date.tm_year),
+                                               date.tm_mon + 1, date.tm_mday);
 }
 
-// Returns the tzname, assume tzset has been called already
-QString qt_tzname(QDateTimePrivate::DaylightStatus daylightStatus)
-{
-    int isDst = (daylightStatus == QDateTimePrivate::DaylightTime) ? 1 : 0;
-#if defined(Q_CC_MSVC)
-    size_t s = 0;
-    char name[512];
-    if (_get_tzname(&s, name, 512, isDst))
-        return QString();
-    return QString::fromLocal8Bit(name);
-#else
-    return QString::fromLocal8Bit(tzname[isDst]);
-#endif // Q_OS_WIN
-}
-
-} // namespace
-
-#if QT_CONFIG(datetimeparser)
-/*
-  \internal
-  Implemented here to share qt_tzname()
-*/
-int QDateTimeParser::startsWithLocalTimeZone(QStringView name, const QDateTime &when)
-{
-    QDateTimePrivate::DaylightStatus zones[2] = {
-        QDateTimePrivate::StandardTime,
-        QDateTimePrivate::DaylightTime
-    };
-    // On MS-Win, at least when system zone is UTC, the tzname[]s may be empty.
-    for (const auto z : zones) {
-        QString zone(qt_tzname(z));
-        if (!zone.isEmpty() && name.startsWith(zone))
-            return zone.size();
-    }
-    // Mimic what QLocale::toString() would have used, to ensure round-trips work:
-    const QString local = QDateTime(when.date(), when.time()).timeZoneAbbreviation();
-    if (name.startsWith(local))
-        return local.size();
-    return 0;
-}
-#endif // datetimeparser
-
-namespace QLocalTime {
-
-#ifndef QT_BOOTSTRAPPED
-// Even if local time is currently in DST, this returns the standard time offset
-// (in seconds) nominally in effect at present:
-int getCurrentStandardUtcOffset()
-{
-#ifdef Q_OS_WIN
-    TIME_ZONE_INFORMATION tzInfo;
-    GetTimeZoneInformation(&tzInfo);
-    return -tzInfo.Bias * SECS_PER_MIN;
-#else
-    qTzSet();
-    const time_t curr = time(nullptr);
-    /* Set t to the UTC representation of curr; the time whose local standard
-       time representation coincides with that differs from curr by local time's
-       standard offset.  Note that gmtime() leaves the tm_isdst flag set to 0,
-       so mktime() will, even if local time is currently using DST, return the
-       time since epoch at which local standard time would have the same
-       representation as UTC's representation of curr. The fact that mktime()
-       also flips tm_isdst and updates the time fields to the DST-equivalent
-       time needn't concern us here; all that matters is that it returns the
-       time after epoch at which standard time's representation would have
-       matched UTC's, had it been in effect.
-    */
-#  if defined(_POSIX_THREAD_SAFE_FUNCTIONS)
-    struct tm t;
-    if (gmtime_r(&curr, &t))
-        return curr - qMkTime(&t);
-#  else
-    if (struct tm *tp = gmtime(&curr)) {
-        struct tm t = *tp; // Copy it quick, hopefully before it can get stomped
-        return curr - qMkTime(&t);
-    }
-#  endif
-    // We can't tell, presume UTC.
-    return 0;
-#endif // Platform choice
-}
-
-// This is local time's offset (in seconds), at the specified time, including
-// any DST part.
-int getUtcOffset(qint64 atMSecsSinceEpoch)
-{
-    return QDateTimePrivate::expressUtcAsLocal(atMSecsSinceEpoch).offset;
-}
-#endif // QT_BOOTSTRAPPED
-
 #define IC(N) std::integral_constant<qint64, N>()
 
 // True if combining day and seconds overflows qint64; otherwise, sets *epochSeconds
@@ -308,29 +189,96 @@ inline bool secondsAndMillisOverflow(qint64 epochSeconds, qint64 millis, qint64
 
 #undef IC
 
+} // namespace
+
+namespace QLocalTime {
+
+#ifndef QT_BOOTSTRAPPED
+// Even if local time is currently in DST, this returns the standard time offset
+// (in seconds) nominally in effect at present:
+int getCurrentStandardUtcOffset()
+{
+#ifdef Q_OS_WIN
+    TIME_ZONE_INFORMATION tzInfo;
+    if (GetTimeZoneInformation(&tzInfo) != TIME_ZONE_ID_INVALID) {
+        int bias = tzInfo.Bias; // In minutes.
+        // StandardBias is usually zero, but include it if given:
+        if (tzInfo.StandardDate.wMonth) // Zero month means ignore StandardBias.
+            bias += tzInfo.StandardBias;
+        // MS's bias is +ve in the USA, so minutes *behind* UTC - we want seconds *ahead*:
+        return -bias * SECS_PER_MIN;
+    }
+#else
+    qTzSet();
+    const time_t curr = time(nullptr);
+    if (curr != -1) {
+        /* Set t to the UTC representation of curr; the time whose local
+           standard time representation coincides with that differs from curr by
+           local time's standard offset.  Note that gmtime() leaves the tm_isdst
+           flag set to 0, so mktime() will, even if local time is currently
+           using DST, return the time since epoch at which local standard time
+           would have the same representation as UTC's representation of
+           curr. The fact that mktime() also flips tm_isdst and updates the time
+           fields to the DST-equivalent time needn't concern us here; all that
+           matters is that it returns the time after epoch at which standard
+           time's representation would have matched UTC's, had it been in
+           effect.
+        */
+#  if defined(_POSIX_THREAD_SAFE_FUNCTIONS)
+        struct tm t;
+        if (gmtime_r(&curr, &t)) {
+            time_t mkt = qMkTime(&t);
+            int offset = int(curr - mkt);
+            Q_ASSERT(std::abs(offset) <= SECS_PER_DAY);
+            return offset;
+        }
+#  else
+        if (struct tm *tp = gmtime(&curr)) {
+            struct tm t = *tp; // Copy it quick, hopefully before it can get stomped
+            time_t mkt = qMkTime(&t);
+            int offset = int(curr - mkt);
+            Q_ASSERT(std::abs(offset) <= SECS_PER_DAY);
+            return offset;
+        }
+#  endif
+    } // else, presumably: errno == EOVERFLOW
+#endif // Platform choice
+    qDebug("Unable to determine current standard time offset from UTC");
+    // We can't tell, presume UTC.
+    return 0;
+}
+
+// This is local time's offset (in seconds), at the specified time, including
+// any DST part.
+int getUtcOffset(qint64 atMSecsSinceEpoch)
+{
+    return QDateTimePrivate::expressUtcAsLocal(atMSecsSinceEpoch).offset;
+}
+#endif // QT_BOOTSTRAPPED
+
 // Calls the platform variant of localtime() for the given utcMillis, and
 // returns the local milliseconds, offset from UTC and DST status.
 QDateTimePrivate::ZoneState utcToLocal(qint64 utcMillis)
 {
-    const time_t epochSeconds = QRoundingDown::qDiv(utcMillis, MSECS_PER_SEC);
-    const int msec = utcMillis - epochSeconds * MSECS_PER_SEC;
+    const auto epoch = QRoundingDown::qDivMod<MSECS_PER_SEC>(utcMillis);
+    const time_t epochSeconds = epoch.quotient;
+    const int msec = epoch.remainder;
     Q_ASSERT(msec >= 0 && msec < MSECS_PER_SEC);
     if (qint64(epochSeconds) * MSECS_PER_SEC + msec != utcMillis) // time_t range too narrow
         return {utcMillis};
 
     tm local;
-    if (!qtLocalTime(epochSeconds, &local))
+    if (!qLocalTime(epochSeconds, &local))
         return {utcMillis};
 
-    qint64 jd;
-    if (Q_UNLIKELY(!QGregorianCalendar::julianFromParts(qYearFromTmYear(local.tm_year),
-                                                        local.tm_mon + 1, local.tm_mday, &jd))) {
+    auto jd = tmToJd(local);
+    if (Q_UNLIKELY(!jd))
         return {utcMillis};
-    }
+
     const qint64 daySeconds = tmSecsWithinDay(local);
     Q_ASSERT(0 <= daySeconds && daySeconds < SECS_PER_DAY);
     qint64 localSeconds, localMillis;
-    if (Q_UNLIKELY(daysAndSecondsOverflow(jd, daySeconds, &localSeconds)
+    if (Q_UNLIKELY(daysAndSecondsOverflow(*jd, daySeconds, &localSeconds)
                    || secondsAndMillisOverflow(localSeconds, qint64(msec), &localMillis))) {
         return {utcMillis};
     }
@@ -341,26 +289,25 @@ QDateTimePrivate::ZoneState utcToLocal(qint64 utcMillis)
 
 QString localTimeAbbbreviationAt(qint64 local, QDateTimePrivate::DaylightStatus dst)
 {
-    const qint64 localDays = QRoundingDown::qDiv(local, MSECS_PER_DAY);
-    qint64 millis = local - localDays * MSECS_PER_DAY;
+    const auto localDayMilli = QRoundingDown::qDivMod<MSECS_PER_DAY>(local);
+    qint64 millis = localDayMilli.remainder;
     Q_ASSERT(0 <= millis && millis < MSECS_PER_DAY); // Definition of QRD::qDiv.
-    struct tm tmLocal = timeToTm(localDays, int(millis / MSECS_PER_SEC), dst);
+    struct tm tmLocal = timeToTm(localDayMilli.quotient, int(millis / MSECS_PER_SEC), dst);
     time_t utcSecs;
     if (!callMkTime(&tmLocal, &utcSecs))
         return {};
-    return qt_tzname(tmLocal.tm_isdst > 0 ? QDateTimePrivate::DaylightTime
-                                          : QDateTimePrivate::StandardTime);
+    return qTzName(tmLocal.tm_isdst > 0 ? 1 : 0);
 }
 
 QDateTimePrivate::ZoneState mapLocalTime(qint64 local, QDateTimePrivate::DaylightStatus dst)
 {
     qint64 localSecs = local / MSECS_PER_SEC;
     qint64 millis = local - localSecs * MSECS_PER_SEC; // 0 or with same sign as local
-    const qint64 localDays = QRoundingDown::qDiv(localSecs, SECS_PER_DAY);
-    qint64 daySecs = localSecs - localDays * SECS_PER_DAY;
+    const auto localDaySec = QRoundingDown::qDivMod<SECS_PER_DAY>(localSecs);
+    qint64 daySecs = localDaySec.remainder;
     Q_ASSERT(0 <= daySecs && daySecs < SECS_PER_DAY); // Definition of QRD::qDiv.
 
-    struct tm tmLocal = timeToTm(localDays, daySecs, dst);
+    struct tm tmLocal = timeToTm(localDaySec.quotient, daySecs, dst);
     time_t utcSecs;
     if (!callMkTime(&tmLocal, &utcSecs))
         return {local};
@@ -368,21 +315,19 @@ QDateTimePrivate::ZoneState mapLocalTime(qint64 local, QDateTimePrivate::Dayligh
     // TODO: for glibc, we could use tmLocal.tm_gmtoff
     // That would give us offset directly, hence localSecs = offset + utcSecs
     // Provisional offset, until we have a revised localSeconds:
-    int offset = QRoundingDown::qDiv(local, MSECS_PER_SEC) - utcSecs;
+    int offset = localSecs - utcSecs;
     dst = tmLocal.tm_isdst > 0 ? QDateTimePrivate::DaylightTime : QDateTimePrivate::StandardTime;
-    qint64 jd;
-    if (Q_UNLIKELY(!QGregorianCalendar::julianFromParts(
-                       qYearFromTmYear(tmLocal.tm_year), tmLocal.tm_mon + 1, tmLocal.tm_mday,
-                       &jd))) {
+    auto jd = tmToJd(tmLocal);
+    if (Q_UNLIKELY(!jd))
         return {local, offset, dst, false};
-    }
+
     daySecs = tmSecsWithinDay(tmLocal);
     Q_ASSERT(0 <= daySecs && daySecs < SECS_PER_DAY);
-    if (daySecs > 0 && jd < JULIAN_DAY_FOR_EPOCH) {
-        ++jd;
+    if (daySecs > 0 && *jd < JULIAN_DAY_FOR_EPOCH) {
+        jd = *jd + 1;
         daySecs -= SECS_PER_DAY;
     }
-    if (Q_UNLIKELY(daysAndSecondsOverflow(jd, daySecs, &localSecs)))
+    if (Q_UNLIKELY(daysAndSecondsOverflow(*jd, daySecs, &localSecs)))
         return {local, offset, dst, false};
 
     offset = localSecs - utcSecs;
@@ -427,9 +372,7 @@ QDateTimePrivate::ZoneState mapLocalTime(qint64 local, QDateTimePrivate::Dayligh
 SystemMillisRange computeSystemMillisRange()
 {
     // Assert this here, as this is called just once, in a static initialization.
-    [[maybe_unused]] qint64 epochJd;
-    Q_ASSERT(QGregorianCalendar::julianFromParts(1970, 1, 1, &epochJd)
-             && epochJd == JULIAN_DAY_FOR_EPOCH);
+    Q_ASSERT(QGregorianCalendar::julianFromParts(1970, 1, 1) == JULIAN_DAY_FOR_EPOCH);
 
     constexpr qint64 TIME_T_MAX = std::numeric_limits<time_t>::max();
     using Bounds = std::numeric_limits<qint64>;
diff --git a/src/corelib/time/qmilankoviccalendar.cpp b/src/corelib/time/qmilankoviccalendar.cpp
index 6c72787e..a3ffa2a3 100644
--- a/src/corelib/time/qmilankoviccalendar.cpp
+++ b/src/corelib/time/qmilankoviccalendar.cpp
@@ -4,8 +4,7 @@
 #include "qglobal.h"
 #include "qmilankoviccalendar_p.h"
 #include "qcalendarmath_p.h"
-#include <QtCore/qmath.h>
-#include <QtCore/qlocale.h>
+
 #include <QtCore/qdatetime.h>
 
 QT_BEGIN_NAMESPACE
@@ -53,48 +52,48 @@ bool QMilankovicCalendar::isLeapYear(int year) const
         return false;
     if (year <= 0)
         ++year;
-    if (qMod(year, 4))
+    if (qMod<4>(year))
         return false;
-    if (qMod(year, 100) == 0) {
-        const qint16 century = qMod(qDiv(year, 100), 9);
+    const auto yeardm = qDivMod<100>(year);
+    if (yeardm.remainder == 0) {
+        const qint16 century = qMod<9>(yeardm.quotient);
         if (century != 2 && century != 6)
             return false;
     }
     return true;
 }
 
+using namespace QRomanCalendrical;
+// End a Milankovic nine-century cycle on 1 BC, Feb 28 (Gregorian Feb 29):
+constexpr qint64 MilankovicBaseJd = LeapDayGregorian1Bce;
+// Leap years every 4 years, except for 7 turn-of-century years per nine centuries:
+constexpr unsigned NineCenturies = 365 * 900 + 900 / 4 - 7;
+// When the turn-of-century is a leap year, the century has 25 leap years in it:
+constexpr unsigned LeapCentury = 365 * 100 + 25;
+
 bool QMilankovicCalendar::dateToJulianDay(int year, int month, int day, qint64 *jd) const
 {
     Q_ASSERT(jd);
     if (!isDateValid(year, month, day))
         return false;
-    if (year <= 0)
-        ++year;
-    const qint16 c0 = month < 3 ? -1 : 0;
-    const qint16 x1 = month - 12 * c0 - 3;
-    const qint16 x4 = year + c0;
-    const qint16 x3 = qDiv(x4, 100);
-    const qint16 x2 = qMod(x4, 100);
-    *jd = qDiv(328718 * x3 + 6, 9)
-        + qDiv(36525 * x2 , 100)
-        + qDiv(153 * x1 + 2 , 5)
-        + day + 1721119;
+
+    const auto yearDays = yearMonthToYearDays(year, month);
+    const auto centuryYear = qDivMod<100>(yearDays.year);
+    const qint64 fromYear = qDiv<9>(NineCenturies * centuryYear.quotient + 6)
+                          + qDiv<100>(LeapCentury * centuryYear.remainder);
+    *jd = fromYear + yearDays.days + day + MilankovicBaseJd;
     return true;
 }
 
 QCalendar::YearMonthDay  QMilankovicCalendar::julianDayToDate(qint64 jd) const
 {
-    const qint64 k3 = 9 * (jd - 1721120) + 2;
-    const qint64 x3 = qDiv(k3, 328718);
-    const qint64 k2 = 100 * qDiv(qMod(k3, 328718), 9) + 99;
-    const qint64 k1 = qDiv(qMod(k2, 36525), 100) * 5 + 2;
-    const qint64 x2 = qDiv(k2, 36525);
-    const qint64 x1 = qDiv(5 * qDiv(qMod(k2, 36525), 100) + 2, 153);
-    const qint64 c0 = qDiv(x1 + 2, 12);
-    const int y = 100 * x3 + x2 + c0;
-    const int month = x1 - 12 * c0 + 3;
-    const int day = qDiv(qMod(k1, 153), 5) + 1;
-    return QCalendar::YearMonthDay(y > 0 ? y : y - 1, month, day);
+    const auto century9Day = qDivMod<NineCenturies>(9 * (jd - MilankovicBaseJd) - 7);
+    // Its remainder changes by 9 per day, except roughly once per century.
+    const auto year100Day = qDivMod<LeapCentury>(100 * qDiv<9>(century9Day.remainder) + 99);
+    // Its remainder changes by 100 per day, except roughly once per year.
+    const auto ymd = dayInYearToYmd(qDiv<100>(year100Day.remainder));
+    const int y = 100 * century9Day.quotient + year100Day.quotient + ymd.year;
+    return QCalendar::YearMonthDay(y > 0 ? y : y - 1, ymd.month, ymd.day);
 }
 
 QT_END_NAMESPACE
diff --git a/src/corelib/time/qromancalendar_data_p.h b/src/corelib/time/qromancalendar_data_p.h
index 13368c4a..077d33d9 100644
--- a/src/corelib/time/qromancalendar_data_p.h
+++ b/src/corelib/time/qromancalendar_data_p.h
@@ -25,7 +25,7 @@ namespace QtPrivate::Roman {
 // GENERATED PART STARTS HERE
 
 /*
-    This part of the file was generated on 2023-08-03 from the
+    This part of the file was generated on 2023-07-27 from the
     Common Locale Data Repository v43
 
     http://www.unicode.org/cldr/
diff --git a/src/corelib/time/qtimezone.cpp b/src/corelib/time/qtimezone.cpp
index f882602d..44b6662b 100644
--- a/src/corelib/time/qtimezone.cpp
+++ b/src/corelib/time/qtimezone.cpp
@@ -29,7 +29,7 @@ static QTimeZonePrivate *newBackendTimeZone()
     return new QUtcTimeZonePrivate();
 #endif
 #else
-#if defined Q_OS_MAC
+#if defined(Q_OS_DARWIN)
     return new QMacTimeZonePrivate();
 #elif defined(Q_OS_ANDROID)
     return new QAndroidTimeZonePrivate();
@@ -37,7 +37,7 @@ static QTimeZonePrivate *newBackendTimeZone()
     return new QTzTimeZonePrivate();
 #elif QT_CONFIG(icu)
     return new QIcuTimeZonePrivate();
-#elif defined Q_OS_WIN
+#elif defined(Q_OS_WIN)
     return new QWinTimeZonePrivate();
 #else
     return new QUtcTimeZonePrivate();
@@ -56,7 +56,7 @@ static QTimeZonePrivate *newBackendTimeZone(const QByteArray &ianaId)
     return new QUtcTimeZonePrivate(ianaId);
 #endif
 #else
-#if defined Q_OS_MAC
+#if defined(Q_OS_DARWIN)
     return new QMacTimeZonePrivate(ianaId);
 #elif defined(Q_OS_ANDROID)
     return new QAndroidTimeZonePrivate(ianaId);
@@ -64,7 +64,7 @@ static QTimeZonePrivate *newBackendTimeZone(const QByteArray &ianaId)
     return new QTzTimeZonePrivate(ianaId);
 #elif QT_CONFIG(icu)
     return new QIcuTimeZonePrivate(ianaId);
-#elif defined Q_OS_WIN
+#elif defined(Q_OS_WIN)
     return new QWinTimeZonePrivate(ianaId);
 #else
     return new QUtcTimeZonePrivate(ianaId);
@@ -177,7 +177,7 @@ Q_GLOBAL_STATIC(QTimeZoneSingleton, global_tz);
 
     A default UTC time zone backend is provided which is always available when
     feature \c timezone is enabled. This provides a set of generic Offset From
-    UTC time zones in the range UTC-14:00 to UTC+14:00. These time zones can be
+    UTC time zones in the range UTC-16:00 to UTC+16:00. These time zones can be
     created using either the standard ISO format names, such as "UTC+00:00", as
     listed by availableTimeZoneIds(), or using a name of similar form in
     combination with the number of offset seconds.
@@ -254,17 +254,34 @@ Q_GLOBAL_STATIC(QTimeZoneSingleton, global_tz);
 */
 
 /*!
-  \enum QTimeZone::anonymous
+    \variable QTimeZone::MinUtcOffsetSecs
+    \brief Timezone offsets from UTC are expected to be no lower than this.
 
-  This enumeration provides constants bounding the range of plausible timezone
-  offsets from UTC, measured in seconds.
-  Sane UTC offsets range from -14 to +14 hours.
-  No known zone has offset > 12 hrs West of Greenwich (Baker Island, USA).
-  No known zone has offset > 14 hrs East of Greenwich (Kiritimati, Christmas Island, Kiribati).
-  Note that there are zones whose offsets differ by more than a day.
+    The lowest UTC offset of any early 21st century timezone is -12 hours (Baker
+    Island, USA), or 12 hours west of Greenwich.
 
-  \value MinUtcOffsetSecs -14 * 3600,
-  \value MaxUtcOffsetSecs +14 * 3600
+    Historically, until 1844, The Philippines (then controlled by Spain) used
+    the same date as Spain's American holdings, so had offsets close to 16 hours
+    west of Greenwich. As The Philippines was using local solar mean time, it is
+    possible some outlying territory of it may have been operating at more than
+    16 hours west of Greenwich, but no early 21st century timezone traces its
+    history back to such an extreme.
+
+    \sa MaxUtcOffsetSecs
+*/
+/*!
+    \variable QTimeZone::MaxUtcOffsetSecs
+    \brief Timezone offsets from UTC are expected to be no higher than this.
+
+    The highest UTC offset of any early 21st century timezone is +14 hours
+    (Christmas Island, Kiribati, Kiritimati), or 14 hours east of Greenwich.
+
+    Historically, before 1867, when Russia sold Alaska to America, Alaska used
+    the same date as Russia, so had offsets over 15 hours east of Greenwich. As
+    Alaska was using local solar mean time, its offsets varied, but all were
+    less than 16 hours east of Greenwich.
+
+    \sa MinUtcOffsetSecs
 */
 
 #if QT_CONFIG(timezone)
@@ -449,8 +466,13 @@ QTimeZone::QTimeZone(const QByteArray &ianaId)
     d = new QUtcTimeZonePrivate(ianaId);
     // If not a CLDR UTC offset ID then try creating it with the system backend.
     // Relies on backend not creating valid TZ with invalid name.
-    if (!d->isValid())
-        d = ianaId.isEmpty() ? newBackendTimeZone() : newBackendTimeZone(ianaId);
+    if (!d->isValid()) {
+        if (ianaId.isEmpty())
+            d = newBackendTimeZone();
+        else if (global_tz->backend->isTimeZoneIdAvailable(ianaId))
+            d = newBackendTimeZone(ianaId);
+        // else: No such ID, avoid creating a TZ cache entry for it.
+    }
     // Can also handle UTC with arbitrary (valid) offset, but only do so as
     // fall-back, since either of the above may handle it more informatively.
     if (!d->isValid()) {
@@ -468,13 +490,15 @@ QTimeZone::QTimeZone(const QByteArray &ianaId)
 /*!
     Creates a time zone instance with the given offset, \a offsetSeconds, from UTC.
 
-    The \a offsetSeconds from UTC must be in the range -14 hours to +14 hours
+    The \a offsetSeconds from UTC must be in the range -16 hours to +16 hours
     otherwise an invalid time zone will be returned.
 
     This constructor is only available when feature \c timezone is enabled. The
     returned instance is equivalent to the lightweight time representation
     \c{QTimeZone::fromSecondsAfterUtc(offsetSeconds)}, albeit implemented as a
     time zone.
+
+    \sa MinUtcOffsetSecs, MaxUtcOffsetSecs
 */
 
 QTimeZone::QTimeZone(int offsetSeconds)
@@ -495,14 +519,15 @@ QTimeZone::QTimeZone(int offsetSeconds)
 
     The \a ianaId must not be one of the available system IDs returned by
     availableTimeZoneIds().  The \a offsetSeconds from UTC must be in the range
-    -14 hours to +14 hours.
+    -16 hours to +16 hours.
 
     If the custom time zone does not have a specific territory then set it to the
     default value of QLocale::AnyTerritory.
 
     This constructor is only available when feature \c timezone is enabled.
 
-    \sa id(), offsetFromUtc(), displayName(), abbreviation(), territory(), comment()
+    \sa id(), offsetFromUtc(), displayName(), abbreviation(), territory(), comment(),
+        MinUtcOffsetSecs, MaxUtcOffsetSecs
 */
 
 QTimeZone::QTimeZone(const QByteArray &ianaId, int offsetSeconds, const QString &name,
@@ -605,17 +630,18 @@ QTimeZone QTimeZone::asBackendZone() const
     Returns a time representation at a fixed \a offset, in seconds, ahead of
     UTC.
 
-    The \a offset from UTC must be in the range -14 hours to +14 hours otherwise an
-    invalid time zone will be returned. The returned QTimeZone is a lightweight
-    time representation, not a time zone (backed by system-supplied or standard
-    data).
+    The \a offset from UTC must be in the range -16 hours to +16 hours otherwise
+    an invalid time zone will be returned. The returned QTimeZone is a
+    lightweight time representation, not a time zone (backed by system-supplied
+    or standard data).
 
     If the offset is 0, the \l timeSpec() of the returned instance will be
     Qt::UTC. Otherwise, if \a offset is valid, timeSpec() is
     Qt::OffsetFromUTC. An invalid time zone, when returned, has Qt::TimeZone as
     its timeSpec().
 
-    \sa QTimeZone(int), asBackendZone(), fixedSecondsAheadOfUtc()
+    \sa QTimeZone(int), asBackendZone(), fixedSecondsAheadOfUtc(),
+        MinUtcOffsetSecs, MaxUtcOffsetSecs
 */
 
 /*!
@@ -1120,9 +1146,12 @@ bool QTimeZone::isDaylightTime(const QDateTime &atDateTime) const
 }
 
 /*!
-    Returns the effective offset details at the given \a forDateTime. This is
-    the equivalent of calling offsetFromUtc(), abbreviation(), etc individually but is
-    more efficient.
+    Returns the effective offset details at the given \a forDateTime.
+
+    This is the equivalent of calling abbreviation() and all three offset
+    functions individually but is more efficient. If this data is not available
+    for the given datetime, an invalid OffsetData will be returned with an
+    invalid QDateTime as its \c atUtc.
 
     This method is only available when feature \c timezone is enabled.
 
@@ -1142,9 +1171,9 @@ QTimeZone::OffsetData QTimeZone::offsetData(const QDateTime &forDateTime) const
             Q_UNREACHABLE();
             break;
         }
-    } else if (hasTransitions()) {
-        return QTimeZonePrivate::toOffsetData(d->data(forDateTime.toMSecsSinceEpoch()));
     }
+    if (isValid())
+        return QTimeZonePrivate::toOffsetData(d->data(forDateTime.toMSecsSinceEpoch()));
 
     return QTimeZonePrivate::invalidOffsetData();
 }
@@ -1185,7 +1214,7 @@ bool QTimeZone::hasTransitions() const
     Transition after it.
 
     If there is no transition after the given \a afterDateTime then an invalid
-    OffsetData will be returned with an invalid QDateTime.
+    OffsetData will be returned with an invalid QDateTime as its \c atUtc.
 
     The given \a afterDateTime is exclusive.
 
@@ -1220,7 +1249,7 @@ QTimeZone::OffsetData QTimeZone::nextTransition(const QDateTime &afterDateTime)
     Transition before it.
 
     If there is no transition before the given \a beforeDateTime then an invalid
-    OffsetData will be returned with an invalid QDateTime.
+    OffsetData will be returned with an invalid QDateTime as its \c atUtc.
 
     The given \a beforeDateTime is exclusive.
 
@@ -1357,12 +1386,18 @@ QTimeZone QTimeZone::utc()
 
 bool QTimeZone::isTimeZoneIdAvailable(const QByteArray &ianaId)
 {
+#if defined(Q_OS_UNIX) && !(defined(Q_OS_ANDROID) || defined(Q_OS_DARWIN))
+    // Keep #if-ery consistent with selection of QTzTimeZonePrivate in
+    // newBackendTimeZone(). Skip the pre-check, as the TZ backend accepts POSIX
+    // zone IDs, which need not be valid IANA IDs.
+#else
     // isValidId is not strictly required, but faster to weed out invalid
     // IDs as availableTimeZoneIds() may be slow
     if (!QTimeZonePrivate::isValidId(ianaId))
         return false;
-    return QUtcTimeZonePrivate().isTimeZoneIdAvailable(ianaId) ||
-           global_tz->backend->isTimeZoneIdAvailable(ianaId);
+#endif
+    return QUtcTimeZonePrivate().isTimeZoneIdAvailable(ianaId)
+        || global_tz->backend->isTimeZoneIdAvailable(ianaId);
 }
 
 static QList<QByteArray> set_union(const QList<QByteArray> &l1, const QList<QByteArray> &l2)
diff --git a/src/corelib/time/qtimezone.h b/src/corelib/time/qtimezone.h
index 52e51f20..6040624f 100644
--- a/src/corelib/time/qtimezone.h
+++ b/src/corelib/time/qtimezone.h
@@ -56,7 +56,7 @@ class Q_CORE_EXPORT QTimeZone
     union Data
     {
         Data() noexcept;
-        Data(ShortData &&sd) : s(std::move(sd)) {}
+        Data(ShortData sd) : s(sd) {}
         Data(const Data &other) noexcept;
         Data(Data &&other) noexcept : d(std::exchange(other.d, nullptr)) {}
         Data &operator=(const Data &other) noexcept;
@@ -79,16 +79,16 @@ class Q_CORE_EXPORT QTimeZone
         QTimeZonePrivate *d = nullptr;
         ShortData s;
     };
-    QTimeZone(ShortData &&sd) : d(std::move(sd)) {}
+    QTimeZone(ShortData sd) : d(sd) {}
 
 public:
-    // Sane UTC offsets range from -14 to +14 hours:
-    enum {
-        // No known zone > 12 hrs West of Greenwich (Baker Island, USA)
-        MinUtcOffsetSecs = -14 * 3600,
-        // No known zone > 14 hrs East of Greenwich (Kiritimati, Christmas Island, Kiribati)
-        MaxUtcOffsetSecs = +14 * 3600
-    };
+    // Sane UTC offsets range from -16 to +16 hours:
+    static constexpr int MinUtcOffsetSecs = -16 * 3600;
+    // No known modern zone > 12 hrs West of Greenwich.
+    // Until 1844, Asia/Manila (in The Philippines) was at 15:56 West.
+    static constexpr int MaxUtcOffsetSecs = +16 * 3600;
+    // No known modern zone > 14 hrs East of Greenwich.
+    // Until 1867, America/Metlakatla (in Alaska) was at 15:13:42 East.
 
     enum Initialization { LocalTime, UTC };
 
diff --git a/src/corelib/time/qtimezoneprivate.cpp b/src/corelib/time/qtimezoneprivate.cpp
index 96bbf7df..6f0b51f8 100644
--- a/src/corelib/time/qtimezoneprivate.cpp
+++ b/src/corelib/time/qtimezoneprivate.cpp
@@ -182,28 +182,28 @@ QTimeZonePrivate::Data QTimeZonePrivate::dataForLocalTime(qint64 forLocalMSecs,
 
     /*
       We need a UTC time at which to ask for the offset, in order to be able to
-      add that offset to forLocalMSecs, to get the UTC time we
-      need. Fortunately, no time-zone offset is more than 14 hours; and DST
-      transitions happen (much) more than thirty-two hours apart.  So sampling
-      offset sixteen hours each side gives us information we can be sure
+      add that offset to forLocalMSecs, to get the UTC time we need.
+      Fortunately, all time-zone offsets have been less than 17 hours; and DST
+      transitions happen (much) more than thirty-four hours apart. So sampling
+      offset seventeen hours each side gives us information we can be sure
       brackets the correct time and at most one DST transition.
     */
-    std::integral_constant<qint64, 16 * 3600 * 1000> sixteenHoursInMSecs;
-    static_assert(-sixteenHoursInMSecs / 1000 < QTimeZone::MinUtcOffsetSecs
-                  && sixteenHoursInMSecs / 1000 > QTimeZone::MaxUtcOffsetSecs);
+    std::integral_constant<qint64, 17 * 3600 * 1000> seventeenHoursInMSecs;
+    static_assert(-seventeenHoursInMSecs / 1000 < QTimeZone::MinUtcOffsetSecs
+                  && seventeenHoursInMSecs / 1000 > QTimeZone::MaxUtcOffsetSecs);
     qint64 millis;
     // Clip the bracketing times to the bounds of the supported range. Exclude
     // minMSecs(), because at least one backend (Windows) uses it for a
     // start-of-time fake transition, that we want previousTransition() to find.
     const qint64 recent =
-        qSubOverflow(forLocalMSecs, sixteenHoursInMSecs, &millis) || millis <= minMSecs()
+        qSubOverflow(forLocalMSecs, seventeenHoursInMSecs, &millis) || millis <= minMSecs()
         ? minMSecs() + 1 : millis; // Necessarily <= forLocalMSecs + 2.
     // (Given that minMSecs() is std::numeric_limits<qint64>::min() + 1.)
     const qint64 imminent =
-        qAddOverflow(forLocalMSecs, sixteenHoursInMSecs, &millis)
+        qAddOverflow(forLocalMSecs, seventeenHoursInMSecs, &millis)
         ? maxMSecs() : millis; // Necessarily >= forLocalMSecs
     // At most one of those was clipped to its boundary value:
-    Q_ASSERT(recent < imminent && sixteenHoursInMSecs < imminent - recent + 2);
+    Q_ASSERT(recent < imminent && seventeenHoursInMSecs < imminent - recent + 2);
     /*
       Offsets are Local - UTC, positive to the east of Greenwich, negative to
       the west; DST offset always exceeds standard offset, when DST applies.
@@ -639,9 +639,13 @@ QString QTimeZonePrivate::isoOffsetFormat(int offsetFromUtc, QTimeZone::NameType
 
 QByteArray QTimeZonePrivate::ianaIdToWindowsId(const QByteArray &id)
 {
+    // We don't have a Latin1/UTF-8 mixed comparator (QTBUG-100234),
+    // so we have to allocate here...
+    const auto idUtf8 = QString::fromUtf8(id);
+
     for (const QZoneData &data : zoneDataTable) {
         for (auto l1 : data.ids()) {
-            if (l1 == QByteArrayView(id))
+            if (l1 == idUtf8)
                 return toWindowsIdLiteral(data.windowsIdKey);
         }
     }
diff --git a/src/corelib/time/qtimezoneprivate_p.h b/src/corelib/time/qtimezoneprivate_p.h
index 6ea95070..cb045ab5 100644
--- a/src/corelib/time/qtimezoneprivate_p.h
+++ b/src/corelib/time/qtimezoneprivate_p.h
@@ -334,7 +334,7 @@ private:
 };
 #endif // Q_OS_UNIX
 
-#ifdef Q_OS_MAC
+#ifdef Q_OS_DARWIN
 class Q_AUTOTEST_EXPORT QMacTimeZonePrivate final : public QTimeZonePrivate
 {
 public:
@@ -377,7 +377,7 @@ private:
 
     NSTimeZone *m_nstz;
 };
-#endif // Q_OS_MAC
+#endif // Q_OS_DARWIN
 
 #ifdef Q_OS_WIN
 class Q_AUTOTEST_EXPORT QWinTimeZonePrivate final : public QTimeZonePrivate
diff --git a/src/corelib/time/qtimezoneprivate_tz.cpp b/src/corelib/time/qtimezoneprivate_tz.cpp
index 067191d8..e702a5d6 100644
--- a/src/corelib/time/qtimezoneprivate_tz.cpp
+++ b/src/corelib/time/qtimezoneprivate_tz.cpp
@@ -384,13 +384,15 @@ static QDate calculateDowDate(int year, int month, int dayOfWeek, int week)
 
 static QDate calculatePosixDate(const QByteArray &dateRule, int year)
 {
+    Q_ASSERT(!dateRule.isEmpty());
     bool ok;
     // Can start with M, J, or a digit
     if (dateRule.at(0) == 'M') {
         // nth week in month format "Mmonth.week.dow"
         QList<QByteArray> dateParts = dateRule.split('.');
         if (dateParts.size() > 2) {
-            int month = dateParts.at(0).mid(1).toInt(&ok);
+            Q_ASSERT(!dateParts.at(0).isEmpty()); // the 'M' is its [0].
+            int month = QByteArrayView{ dateParts.at(0) }.sliced(1).toInt(&ok);
             int week = ok ? dateParts.at(1).toInt(&ok) : 0;
             int dow = ok ? dateParts.at(2).toInt(&ok) : 0;
             if (ok)
@@ -399,7 +401,7 @@ static QDate calculatePosixDate(const QByteArray &dateRule, int year)
     } else if (dateRule.at(0) == 'J') {
         // Day of Year 1...365, ignores Feb 29.
         // So March always starts on day 60.
-        int doy = dateRule.mid(1).toInt(&ok);
+        int doy = QByteArrayView{ dateRule }.sliced(1).toInt(&ok);
         if (ok && doy > 0 && doy < 366) {
             // Subtract 1 because we're adding days *after* the first of
             // January, unless it's after February in a leap year, when the leap
@@ -553,7 +555,12 @@ PosixZone PosixZone::parse(const char *&pos, const char *end)
     return {std::move(name), offset};
 }
 
-static auto validatePosixRule(const QByteArray &posixRule)
+/* Parse and check a POSIX rule.
+
+   By default a simple zone abbreviation with no offset information is accepted.
+   Set \a requireOffset to \c true to require that there be offset data present.
+*/
+static auto validatePosixRule(const QByteArray &posixRule, bool requireOffset = false)
 {
     // Format is described here:
     // http://www.gnu.org/software/libc/manual/html_node/TZ-Variable.html
@@ -565,15 +572,19 @@ static auto validatePosixRule(const QByteArray &posixRule)
         return fail;
 
     const char *begin = zoneinfo.begin();
-
-    // Updates begin to point after the name and offset it parses:
-    if (PosixZone::parse(begin, zoneinfo.end()).name.isEmpty())
-        return fail;
+    {
+        // Updates begin to point after the name and offset it parses:
+        const auto posix = PosixZone::parse(begin, zoneinfo.end());
+        if (posix.name.isEmpty())
+            return fail;
+        if (requireOffset && !posix.hasValidOffset())
+            return fail;
+    }
 
     if (good.hasDst) {
         if (begin >= zoneinfo.end())
             return fail;
-        // Expect a second name and offset after the first:
+        // Expect a second name (and optional offset) after the first:
         if (PosixZone::parse(begin, zoneinfo.end()).name.isEmpty())
             return fail;
     }
@@ -928,8 +939,8 @@ QTzTimeZoneCacheEntry QTzTimeZoneCache::findEntry(const QByteArray &ianaId)
         if (ruleIndex == -1) {
             if (rule.dstOffset != 0)
                 ret.m_hasDst = true;
+            tran.ruleIndex = ret.m_tranRules.size();
             ret.m_tranRules.append(rule);
-            tran.ruleIndex = ret.m_tranRules.size() - 1;
         } else {
             tran.ruleIndex = ruleIndex;
         }
@@ -1221,7 +1232,11 @@ QTimeZonePrivate::Data QTzTimeZonePrivate::previousTransition(qint64 beforeMSecs
 
 bool QTzTimeZonePrivate::isTimeZoneIdAvailable(const QByteArray &ianaId) const
 {
-    return tzZones->contains(ianaId);
+    // Allow a POSIX rule as long as it has offset data. (This needs to reject a
+    // plain abbreviation, without offset, since claiming to support such zones
+    // would prevent the custom QTimeZone constructor from accepting such a
+    // name, as it doesn't want a custom zone to over-ride a "real" one.)
+    return tzZones->contains(ianaId) || validatePosixRule(ianaId, true).isValid;
 }
 
 QList<QByteArray> QTzTimeZonePrivate::availableTimeZoneIds() const
@@ -1327,7 +1342,7 @@ private:
             path = QFile::symLinkTarget(path);
             int index = path.indexOf(zoneinfo);
             if (index >= 0) // Found zoneinfo file; extract zone name from path:
-                return QStringView{ path }.mid(index + zoneinfo.size()).toUtf8();
+                return QStringView{ path }.sliced(index + zoneinfo.size()).toUtf8();
         } while (!path.isEmpty() && --iteration > 0);
 
         return QByteArray();
@@ -1384,7 +1399,7 @@ QByteArray QTzTimeZonePrivate::staticSystemTimeZoneId()
     if (ianaId == ":/etc/localtime")
         ianaId.clear();
     else if (ianaId.startsWith(':'))
-        ianaId = ianaId.mid(1);
+        ianaId = ianaId.sliced(1);
 
     if (ianaId.isEmpty()) {
         Q_CONSTINIT thread_local static ZoneNameReader reader;
diff --git a/src/corelib/tools/qarraydata.cpp b/src/corelib/tools/qarraydata.cpp
index 433385ad..56f14616 100644
--- a/src/corelib/tools/qarraydata.cpp
+++ b/src/corelib/tools/qarraydata.cpp
@@ -107,33 +107,30 @@ qCalculateGrowingBlockSize(qsizetype elementCount, qsizetype elementSize, qsizet
     return result;
 }
 
-/*!
-    \internal
+/*
+    Calculate the byte size for a block of \a capacity objects of size \a
+    objectSize, with a header of size \a headerSize. If the \a option is
+    QArrayData::Grow, the capacity itself adjusted up, preallocating room for
+    more elements to be added later; otherwise, it is an exact calculation.
 
-    Returns \a allocSize plus extra reserved bytes necessary to store '\0'.
- */
-static inline qsizetype reserveExtraBytes(qsizetype allocSize)
+    Returns a structure containing the size in bytes and elements available.
+*/
+static inline CalculateGrowingBlockSizeResult
+calculateBlockSize(qsizetype capacity, qsizetype objectSize, qsizetype headerSize, QArrayData::AllocationOption option)
 {
-    // We deal with QByteArray and QString only
-    constexpr qsizetype extra = qMax(sizeof(QByteArray::value_type), sizeof(QString::value_type));
-    if (Q_UNLIKELY(allocSize < 0))
-        return -1;
-    if (Q_UNLIKELY(qAddOverflow(allocSize, extra, &allocSize)))
-        return -1;
-    return allocSize;
-}
+    // Adjust the header size up to account for the trailing null for QString
+    // and QByteArray. This is not checked for overflow because headers sizes
+    // should not be anywhere near the overflow limit.
+    constexpr qsizetype FooterSize = qMax(sizeof(QString::value_type), sizeof(QByteArray::value_type));
+    if (objectSize <= FooterSize)
+        headerSize += FooterSize;
 
-static inline qsizetype calculateBlockSize(qsizetype &capacity, qsizetype objectSize, qsizetype headerSize, QArrayData::AllocationOption option)
-{
-    // Calculate the byte size
     // allocSize = objectSize * capacity + headerSize, but checked for overflow
     // plus padded to grow in size
     if (option == QArrayData::Grow) {
-        auto r = qCalculateGrowingBlockSize(capacity, objectSize, headerSize);
-        capacity = r.elementCount;
-        return r.size;
+        return qCalculateGrowingBlockSize(capacity, objectSize, headerSize);
     } else {
-        return qCalculateBlockSize(capacity, objectSize, headerSize);
+        return { qCalculateBlockSize(capacity, objectSize, headerSize), capacity };
     }
 }
 
@@ -181,8 +178,9 @@ void *QArrayData::allocate(QArrayData **dptr, qsizetype objectSize, qsizetype al
     }
     Q_ASSERT(headerSize > 0);
 
-    qsizetype allocSize = calculateBlockSize(capacity, objectSize, headerSize, option);
-    allocSize = reserveExtraBytes(allocSize);
+    auto blockSize = calculateBlockSize(capacity, objectSize, headerSize, option);
+    capacity = blockSize.elementCount;
+    qsizetype allocSize = blockSize.size;
     if (Q_UNLIKELY(allocSize < 0)) {  // handle overflow. cannot allocate reliably
         *dptr = nullptr;
         return nullptr;
@@ -207,7 +205,9 @@ QArrayData::reallocateUnaligned(QArrayData *data, void *dataPointer,
     Q_ASSERT(!data || !data->isShared());
 
     const qsizetype headerSize = sizeof(AlignedQArrayData);
-    qsizetype allocSize = calculateBlockSize(capacity, objectSize, headerSize, option);
+    auto r = calculateBlockSize(capacity, objectSize, headerSize, option);
+    qsizetype allocSize = r.size;
+    capacity = r.elementCount;
     if (Q_UNLIKELY(allocSize < 0))
         return qMakePair<QArrayData *, void *>(nullptr, nullptr);
 
@@ -217,10 +217,6 @@ QArrayData::reallocateUnaligned(QArrayData *data, void *dataPointer,
     Q_ASSERT(offset > 0);
     Q_ASSERT(offset <= allocSize); // equals when all free space is at the beginning
 
-    allocSize = reserveExtraBytes(allocSize);
-    if (Q_UNLIKELY(allocSize < 0))  // handle overflow. cannot reallocate reliably
-        return qMakePair(data, dataPointer);
-
     QArrayData *header = static_cast<QArrayData *>(::realloc(data, size_t(allocSize)));
     if (header) {
         header->alloc = capacity;
diff --git a/src/corelib/tools/qarraydataops.h b/src/corelib/tools/qarraydataops.h
index 9b29b8a1..bd8ead0a 100644
--- a/src/corelib/tools/qarraydataops.h
+++ b/src/corelib/tools/qarraydataops.h
@@ -35,6 +35,8 @@ protected:
 public:
     typedef typename QArrayDataPointer<T>::parameter_type parameter_type;
 
+    using QArrayDataPointer<T>::QArrayDataPointer;
+
     void appendInitialize(qsizetype newSize) noexcept
     {
         Q_ASSERT(this->isMutable());
@@ -213,6 +215,40 @@ public:
         --this->size;
     }
 
+    template <typename Predicate>
+    qsizetype eraseIf(Predicate pred)
+    {
+        qsizetype result = 0;
+        if (this->size == 0)
+            return result;
+
+        if (!this->needsDetach()) {
+            auto end = this->end();
+            auto it = std::remove_if(this->begin(), end, pred);
+            if (it != end) {
+                result = std::distance(it, end);
+                erase(it, result);
+            }
+        } else {
+            const auto begin = this->begin();
+            const auto end = this->end();
+            auto it = std::find_if(begin, end, pred);
+            if (it == end)
+                return result;
+
+            QPodArrayOps<T> other{ Data::allocate(this->size), this->size };
+            Q_CHECK_PTR(other.data());
+            auto dest = other.begin();
+            // std::uninitialized_copy will fallback to ::memcpy/memmove()
+            dest = std::uninitialized_copy(begin, it, dest);
+            dest = q_uninitialized_remove_copy_if(std::next(it), end, dest, pred);
+            other.size = std::distance(other.data(), dest);
+            result = this->size - other.size;
+            this->swap(other);
+        }
+        return result;
+    }
+
     struct Span { T *begin; T *end; };
 
     void copyRanges(std::initializer_list<Span> ranges)
diff --git a/src/corelib/tools/qarraydatapointer.h b/src/corelib/tools/qarraydatapointer.h
index f0b689b4..a77db21c 100644
--- a/src/corelib/tools/qarraydatapointer.h
+++ b/src/corelib/tools/qarraydatapointer.h
@@ -7,6 +7,9 @@
 #include <QtCore/qarraydataops.h>
 #include <QtCore/qcontainertools_impl.h>
 
+#include <QtCore/q20functional.h>
+#include <QtCore/q20memory.h>
+
 QT_BEGIN_NAMESPACE
 
 template <class T>
@@ -24,27 +27,32 @@ public:
 
     typedef typename std::conditional<pass_parameter_by_value, T, const T &>::type parameter_type;
 
+    Q_NODISCARD_CTOR
     constexpr QArrayDataPointer() noexcept
         : d(nullptr), ptr(nullptr), size(0)
     {
     }
 
+    Q_NODISCARD_CTOR
     QArrayDataPointer(const QArrayDataPointer &other) noexcept
         : d(other.d), ptr(other.ptr), size(other.size)
     {
         ref();
     }
 
+    Q_NODISCARD_CTOR
     constexpr QArrayDataPointer(Data *header, T *adata, qsizetype n = 0) noexcept
         : d(header), ptr(adata), size(n)
     {
     }
 
+    Q_NODISCARD_CTOR
     explicit QArrayDataPointer(QPair<QTypedArrayData<T> *, T *> adata, qsizetype n = 0) noexcept
         : d(adata.first), ptr(adata.second), size(n)
     {
     }
 
+    Q_NODISCARD_CTOR
     static QArrayDataPointer fromRawData(const T *rawData, qsizetype length) noexcept
     {
         Q_ASSERT(rawData || !length);
@@ -58,6 +66,7 @@ public:
         return *this;
     }
 
+    Q_NODISCARD_CTOR
     QArrayDataPointer(QArrayDataPointer &&other) noexcept
         : d(other.d), ptr(other.ptr), size(other.size)
     {
@@ -92,7 +101,7 @@ public:
     {
         if (!deref()) {
             (*this)->destroyAll();
-            Data::deallocate(d);
+            free(d);
         }
     }
 
@@ -305,6 +314,98 @@ public:
         this->ptr = res;
     }
 
+    template <typename InputIterator, typename Projection = q20::identity>
+    void assign(InputIterator first, InputIterator last, Projection proj = {})
+    {
+        // This function only provides the basic exception guarantee.
+        constexpr bool IsFwdIt = std::is_convertible_v<
+                typename std::iterator_traits<InputIterator>::iterator_category,
+                std::forward_iterator_tag>;
+        constexpr bool IsIdentity = std::is_same_v<Projection, q20::identity>;
+
+        if constexpr (IsFwdIt) {
+            const qsizetype n = std::distance(first, last);
+            if (needsDetach() || n > constAllocatedCapacity()) {
+                QArrayDataPointer allocated(Data::allocate(detachCapacity(n)));
+                swap(allocated);
+            }
+        } else if (needsDetach()) {
+            QArrayDataPointer allocated(Data::allocate(allocatedCapacity()));
+            swap(allocated);
+            // We don't want to copy data that we know we'll overwrite
+        }
+
+        auto offset = freeSpaceAtBegin();
+        const auto capacityBegin = begin() - offset;
+        const auto prependBufferEnd = begin();
+
+        if constexpr (!std::is_nothrow_constructible_v<T, decltype(std::invoke(proj, *first))>) {
+            // If construction can throw, and we have freeSpaceAtBegin(),
+            // it's easiest to just clear the container and start fresh.
+            // The alternative would be to keep track of two active, disjoint ranges.
+            if (offset) {
+                (*this)->truncate(0);
+                setBegin(capacityBegin);
+                offset = 0;
+            }
+        }
+
+        auto dst = capacityBegin;
+        const auto dend = end();
+        if (offset) { // avoids dead stores
+            setBegin(capacityBegin); // undo prepend optimization
+
+            // By construction, the following loop is nothrow!
+            // (otherwise, we can't reach here)
+            // Assumes InputIterator operations don't throw.
+            // (but we can't statically assert that, as these operations
+            //  have preconditons, so typically aren't noexcept)
+            while (true) {
+                if (dst == prependBufferEnd) {  // ran out of prepend buffer space
+                    size += offset;
+                    // we now have a contiguous buffer, continue with the main loop:
+                    break;
+                }
+                if (first == last) {            // ran out of elements to assign
+                    std::destroy(prependBufferEnd, dend);
+                    size = dst - begin();
+                    return;
+                }
+                // construct element in prepend buffer
+                q20::construct_at(dst, std::invoke(proj, *first));
+                ++dst;
+                ++first;
+            }
+        }
+
+        while (true) {
+            if (first == last) {    // ran out of elements to assign
+                std::destroy(dst, dend);
+                break;
+            }
+            if (dst == dend) {      // ran out of existing elements to overwrite
+                if constexpr (IsFwdIt && IsIdentity) {
+                    dst = std::uninitialized_copy(first, last, dst);
+                    break;
+                } else if constexpr (IsFwdIt && !IsIdentity
+                           && std::is_nothrow_constructible_v<T, decltype(std::invoke(proj, *first))>) {
+                    for (; first != last; ++dst, ++first)   // uninitialized_copy with projection
+                        q20::construct_at(dst, std::invoke(proj, *first));
+                    break;
+                } else {
+                    do {
+                        (*this)->emplace(size, std::invoke(proj, *first));
+                    } while (++first != last);
+                    return;         // size() is already correct (and dst invalidated)!
+                }
+            }
+            *dst = std::invoke(proj, *first);    // overwrite existing element
+            ++dst;
+            ++first;
+        }
+        size = dst - begin();
+    }
+
     // forwards from QArrayData
     qsizetype allocatedCapacity() noexcept { return d ? d->allocatedCapacity() : 0; }
     qsizetype constAllocatedCapacity() const noexcept { return d ? d->constAllocatedCapacity() : 0; }
diff --git a/src/corelib/tools/qatomicscopedvaluerollback_p.h b/src/corelib/tools/qatomicscopedvaluerollback_p.h
index 7b2161d7..a5c1a2fa 100644
--- a/src/corelib/tools/qatomicscopedvaluerollback_p.h
+++ b/src/corelib/tools/qatomicscopedvaluerollback_p.h
@@ -23,7 +23,7 @@
 QT_BEGIN_NAMESPACE
 
 template <typename T>
-class [[nodiscard]] QAtomicScopedValueRollback
+class QAtomicScopedValueRollback
 {
     std::atomic<T> &m_atomic;
     T m_value;
@@ -52,11 +52,13 @@ public:
     //
     // std::atomic:
     //
+    Q_NODISCARD_CTOR
     explicit constexpr
     QAtomicScopedValueRollback(std::atomic<T> &var,
                                std::memory_order mo = std::memory_order_seq_cst)
         : m_atomic(var), m_value(var.load(mo)), m_mo(mo) {}
 
+    Q_NODISCARD_CTOR
     explicit constexpr
     QAtomicScopedValueRollback(std::atomic<T> &var, T value,
                                std::memory_order mo = std::memory_order_seq_cst)
@@ -65,11 +67,13 @@ public:
     //
     // Q(Basic)AtomicInteger:
     //
+    Q_NODISCARD_CTOR
     explicit constexpr
     QAtomicScopedValueRollback(QBasicAtomicInteger<T> &var,
                                std::memory_order mo = std::memory_order_seq_cst)
         : QAtomicScopedValueRollback(var._q_value, mo) {}
 
+    Q_NODISCARD_CTOR
     explicit constexpr
     QAtomicScopedValueRollback(QBasicAtomicInteger<T> &var, T value,
                                std::memory_order mo = std::memory_order_seq_cst)
@@ -78,11 +82,13 @@ public:
     //
     // Q(Basic)AtomicPointer:
     //
+    Q_NODISCARD_CTOR
     explicit constexpr
     QAtomicScopedValueRollback(QBasicAtomicPointer<std::remove_pointer_t<T>> &var,
                                std::memory_order mo = std::memory_order_seq_cst)
         : QAtomicScopedValueRollback(var._q_value, mo) {}
 
+    Q_NODISCARD_CTOR
     explicit constexpr
     QAtomicScopedValueRollback(QBasicAtomicPointer<std::remove_pointer_t<T>> &var, T value,
                                std::memory_order mo = std::memory_order_seq_cst)
diff --git a/src/corelib/tools/qcommandlineparser.cpp b/src/corelib/tools/qcommandlineparser.cpp
index fee1647c..c1581a27 100644
--- a/src/corelib/tools/qcommandlineparser.cpp
+++ b/src/corelib/tools/qcommandlineparser.cpp
@@ -253,7 +253,7 @@ QCommandLineParser::~QCommandLineParser()
     \enum QCommandLineParser::SingleDashWordOptionMode
 
     This enum describes the way the parser interprets command-line
-    options that use a single dash followed by multiple letters, as as \c{-abc}.
+    options that use a single dash followed by multiple letters, as \c{-abc}.
 
     \value ParseAsCompactedShortOptions \c{-abc} is interpreted as \c{-a -b -c},
     i.e. as three short options that have been compacted on the command-line,
@@ -415,7 +415,8 @@ QCommandLineOption QCommandLineParser::addHelpOption()
                 << QStringLiteral("h")
                 << QStringLiteral("help"), tr("Displays help on commandline options."));
     addOption(opt);
-    QCommandLineOption optHelpAll(QStringLiteral("help-all"), tr("Displays help including Qt specific options."));
+    QCommandLineOption optHelpAll(QStringLiteral("help-all"),
+                                  tr("Displays help, including generic Qt options."));
     addOption(optHelpAll);
     d->builtinHelpOption = true;
     return opt;
diff --git a/src/corelib/tools/qcontainerfwd.h b/src/corelib/tools/qcontainerfwd.h
index b876c464..013ba9ea 100644
--- a/src/corelib/tools/qcontainerfwd.h
+++ b/src/corelib/tools/qcontainerfwd.h
@@ -1,11 +1,12 @@
 // Copyright (C) 2020 The Qt Company Ltd.
 // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
 
-#include <QtCore/qglobal.h>
-
 #ifndef QCONTAINERFWD_H
 #define QCONTAINERFWD_H
 
+#include <QtCore/qtconfigmacros.h>
+#include <QtCore/qtypes.h>
+
 #if 0
 #pragma qt_class(QtContainerFwd)
 #endif
diff --git a/src/corelib/tools/qcontainertools_impl.h b/src/corelib/tools/qcontainertools_impl.h
index d3804211..40ed0a84 100644
--- a/src/corelib/tools/qcontainertools_impl.h
+++ b/src/corelib/tools/qcontainertools_impl.h
@@ -72,10 +72,10 @@ template <typename T, typename N>
 void q_uninitialized_relocate_n(T* first, N n, T* out)
 {
     if constexpr (QTypeInfo<T>::isRelocatable) {
-        if (n != N(0)) { // even if N == 0, out == nullptr or first == nullptr are UB for memmove()
-            std::memmove(static_cast<void*>(out),
-                         static_cast<const void*>(first),
-                         n * sizeof(T));
+        if (n != N(0)) { // even if N == 0, out == nullptr or first == nullptr are UB for memcpy()
+            std::memcpy(static_cast<void *>(out),
+                        static_cast<const void *>(first),
+                        n * sizeof(T));
         }
     } else {
         q_uninitialized_move_if_noexcept_n(first, n, out);
@@ -106,6 +106,41 @@ void q_rotate(T *first, T *mid, T *last)
     }
 }
 
+/*!
+    \internal
+    Copies all elements, except the ones for which \a pred returns \c true, from
+    range [first, last), to the uninitialized memory buffer starting at \a out.
+
+    It's undefined behavior if \a out points into [first, last).
+
+    Returns a pointer one past the last copied element.
+
+    If an exception is thrown, all the already copied elements in the destination
+    buffer are destroyed.
+*/
+template <typename T, typename Predicate>
+T *q_uninitialized_remove_copy_if(T *first, T *last, T *out, Predicate &pred)
+{
+    static_assert(std::is_nothrow_destructible_v<T>,
+                  "This algorithm requires that T has a non-throwing destructor");
+    Q_ASSERT(!q_points_into_range(out, first, last));
+
+    T *dest_begin = out;
+    QT_TRY {
+        while (first != last) {
+            if (!pred(*first)) {
+                new (std::addressof(*out)) T(*first);
+                ++out;
+            }
+            ++first;
+        }
+    } QT_CATCH (...) {
+        std::destroy(std::reverse_iterator(out), std::reverse_iterator(dest_begin));
+        QT_RETHROW;
+    }
+    return out;
+}
+
 template<typename iterator, typename N>
 void q_relocate_overlap_n_left_move(iterator first, N n, iterator d_first)
 {
@@ -267,6 +302,15 @@ template <typename Iterator>
 using IfAssociativeIteratorHasFirstAndSecond =
     std::enable_if_t<qxp::is_detected_v<FirstAndSecondTest, Iterator>, bool>;
 
+template <typename Iterator>
+using MoveBackwardsTest = decltype(
+    std::declval<Iterator &>().operator--()
+);
+
+template <typename Iterator>
+using IfIteratorCanMoveBackwards =
+    std::enable_if_t<qxp::is_detected_v<MoveBackwardsTest, Iterator>, bool>;
+
 template <typename T, typename U>
 using IfIsNotSame =
     typename std::enable_if<!std::is_same<T, U>::value, bool>::type;
diff --git a/src/corelib/tools/qcontiguouscache.cpp b/src/corelib/tools/qcontiguouscache.cpp
index 73cfed97..d28d1e71 100644
--- a/src/corelib/tools/qcontiguouscache.cpp
+++ b/src/corelib/tools/qcontiguouscache.cpp
@@ -6,6 +6,8 @@
 #include <QDebug>
 #endif
 
+#include <QtCore/qmalloc.h>
+
 QT_BEGIN_NAMESPACE
 
 #ifdef QT_QCONTIGUOUSCACHE_DEBUG
diff --git a/src/corelib/tools/qcontiguouscache.h b/src/corelib/tools/qcontiguouscache.h
index 98fa82fd..c01dbb93 100644
--- a/src/corelib/tools/qcontiguouscache.h
+++ b/src/corelib/tools/qcontiguouscache.h
@@ -5,7 +5,13 @@
 #define QCONTIGUOUSCACHE_H
 
 #include <QtCore/qatomic.h>
-#include <limits.h>
+#include <QtCore/qassert.h>
+#include <QtCore/qtclasshelpermacros.h>
+#include <QtCore/qtcoreexports.h>
+#include <QtCore/qtypeinfo.h>
+
+#include <climits>
+#include <limits>
 #include <new>
 
 QT_BEGIN_NAMESPACE
diff --git a/src/corelib/tools/qcryptographichash.cpp b/src/corelib/tools/qcryptographichash.cpp
index 59c95199..1d759e04 100644
--- a/src/corelib/tools/qcryptographichash.cpp
+++ b/src/corelib/tools/qcryptographichash.cpp
@@ -25,7 +25,7 @@
 #include "../../3rdparty/rfc6234/sha.h"
 
 #ifndef QT_CRYPTOGRAPHICHASH_ONLY_SHA1
-#if !QT_CONFIG(opensslv30) || !QT_CONFIG(openssl_linked)
+#if !QT_CONFIG(openssl_hash)
 // qdoc and qmake only need SHA-1
 #include "../../3rdparty/md5/md5.h"
 #include "../../3rdparty/md5/md5.cpp"
@@ -114,7 +114,7 @@ static inline int SHA384_512AddLength(SHA512Context *context, unsigned int lengt
 #endif
 #endif // QT_CRYPTOGRAPHICHASH_ONLY_SHA1
 
-#if !defined(QT_BOOTSTRAPPED) && QT_CONFIG(opensslv30) && QT_CONFIG(openssl_linked)
+#if !defined(QT_BOOTSTRAPPED) && QT_CONFIG(openssl_hash)
 #define USING_OPENSSL30
 #include <openssl/evp.h>
 #include <openssl/provider.h>
@@ -1401,9 +1401,18 @@ void QMessageAuthenticationCodePrivate::initMessageHash() noexcept
 /*!
     Constructs an object that can be used to create a cryptographic hash from data
     using method \a method and key \a key.
+
+//! [qba-to-qbav-6.6]
+    \note In Qt versions prior to 6.6, this function took its arguments as
+    QByteArray, not QByteArrayView. If you experience compile errors, it's
+    because your code is passing objects that are implicitly convertible to
+    QByteArray, but not QByteArrayView. Wrap the corresponding argument in
+    \c{QByteArray{~~~}} to make the cast explicit. This is backwards-compatible
+    with old Qt versions.
+//! [qba-to-qbav-6.6]
 */
 QMessageAuthenticationCode::QMessageAuthenticationCode(QCryptographicHash::Algorithm method,
-                                                       const QByteArray &key)
+                                                       QByteArrayView key)
     : d(new QMessageAuthenticationCodePrivate(method))
 {
     d->setKey(key);
@@ -1417,10 +1426,43 @@ QMessageAuthenticationCode::~QMessageAuthenticationCode()
     delete d;
 }
 
+/*!
+    \fn QMessageAuthenticationCode::QMessageAuthenticationCode(QMessageAuthenticationCode &&other)
+
+    Move-constructs a new QMessageAuthenticationCode from \a other.
+
+    \note The moved-from object \a other is placed in a
+    partially-formed state, in which the only valid operations are
+    destruction and assignment of a new object.
+
+    \since 6.6
+*/
+
+/*!
+    \fn QMessageAuthenticationCode &QMessageAuthenticationCode::operator=(QMessageAuthenticationCode &&other)
+
+    Move-assigns \a other to this QMessageAuthenticationCode instance.
+
+    \note The moved-from object \a other is placed in a
+    partially-formed state, in which the only valid operations are
+    destruction and assignment of a new object.
+
+    \since 6.6
+*/
+
+/*!
+    \fn void QMessageAuthenticationCode::swap(QMessageAuthenticationCode &other)
+
+    Swaps message authentication code \a other with this message authentication
+    code. This operation is very fast and never fails.
+
+    \since 6.6
+*/
+
 /*!
     Resets message data. Calling this method doesn't affect the key.
 */
-void QMessageAuthenticationCode::reset()
+void QMessageAuthenticationCode::reset() noexcept
 {
     d->messageHash.reset();
     d->initMessageHash();
@@ -1455,14 +1497,17 @@ void QMessageAuthenticationCode::reset()
     mac.emplace(method, key);
     use(*mac);
     \endcode
+
+    \include qcryptographichash.cpp {qba-to-qbav-6.6}
 */
-void QMessageAuthenticationCode::setKey(const QByteArray &key)
+void QMessageAuthenticationCode::setKey(QByteArrayView key) noexcept
 {
     d->messageHash.reset();
     d->setKey(key);
 }
 
 /*!
+    \overload
     Adds the first \a length chars of \a data to the message.
 */
 void QMessageAuthenticationCode::addData(const char *data, qsizetype length)
@@ -1471,9 +1516,13 @@ void QMessageAuthenticationCode::addData(const char *data, qsizetype length)
 }
 
 /*!
-    \overload addData()
+    Adds \a data to the message.
+
+    \include qcryptographichash.cpp {qba-to-qbav-6.6}
+
+    \sa resultView(), result()
 */
-void QMessageAuthenticationCode::addData(const QByteArray &data)
+void QMessageAuthenticationCode::addData(QByteArrayView data) noexcept
 {
     d->messageHash.addData(data);
 }
@@ -1489,15 +1538,30 @@ bool QMessageAuthenticationCode::addData(QIODevice *device)
     return d->messageHash.addData(device);
 }
 
+/*!
+    \since 6.6
+
+    Returns the final hash value.
+
+    Note that the returned view remains valid only as long as the
+    QMessageAuthenticationCode object is not modified by other means.
+
+    \sa result()
+*/
+QByteArrayView QMessageAuthenticationCode::resultView() const noexcept
+{
+    d->finalize();
+    return d->messageHash.resultView();
+}
+
 /*!
     Returns the final authentication code.
 
-    \sa QByteArray::toHex()
+    \sa resultView(), QByteArray::toHex()
 */
 QByteArray QMessageAuthenticationCode::result() const
 {
-    d->finalize();
-    return d->messageHash.resultView().toByteArray();
+    return resultView().toByteArray();
 }
 
 void QMessageAuthenticationCodePrivate::finalize()
@@ -1522,8 +1586,10 @@ void QMessageAuthenticationCodePrivate::finalizeUnchecked() noexcept
 /*!
     Returns the authentication code for the message \a message using
     the key \a key and the method \a method.
+
+    \include qcryptographichash.cpp {qba-to-qbav-6.6}
 */
-QByteArray QMessageAuthenticationCode::hash(const QByteArray &message, const QByteArray &key,
+QByteArray QMessageAuthenticationCode::hash(QByteArrayView message, QByteArrayView key,
                                             QCryptographicHash::Algorithm method)
 {
     QMessageAuthenticationCodePrivate mac(method);
diff --git a/src/corelib/tools/qfunctionaltools_impl.h b/src/corelib/tools/qfunctionaltools_impl.h
new file mode 100644
index 00000000..5878b90b
--- /dev/null
+++ b/src/corelib/tools/qfunctionaltools_impl.h
@@ -0,0 +1,76 @@
+// Copyright (C) 2023 The Qt Company Ltd.
+// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
+
+#if 0
+#pragma qt_sync_skip_header_check
+#pragma qt_sync_stop_processing
+#endif
+
+#ifndef QFUNCTIONALTOOLS_IMPL_H
+#define QFUNCTIONALTOOLS_IMPL_H
+
+#include <QtCore/qtconfigmacros.h>
+
+#include <type_traits>
+#include <utility>
+
+QT_BEGIN_NAMESPACE
+
+namespace QtPrivate {
+
+namespace detail {
+
+#define FOR_EACH_CVREF(op) \
+    op(&) \
+    op(const &) \
+    op(&&) \
+    op(const &&) \
+    /* end */
+
+
+template <typename Object, typename = void>
+struct StorageByValue
+{
+    Object o;
+#define MAKE_GETTER(cvref) \
+    constexpr Object cvref object() cvref noexcept \
+    { return static_cast<Object cvref>(o); }
+    FOR_EACH_CVREF(MAKE_GETTER)
+#undef MAKE_GETTER
+};
+
+template <typename Object, typename Tag = void>
+struct StorageEmptyBaseClassOptimization : Object
+{
+    StorageEmptyBaseClassOptimization(Object &&o)
+        : Object(std::move(o))
+    {}
+    StorageEmptyBaseClassOptimization(const Object &o)
+        : Object(o)
+    {}
+
+#define MAKE_GETTER(cvref) \
+    constexpr Object cvref object() cvref noexcept \
+    { return static_cast<Object cvref>(*this); }
+    FOR_EACH_CVREF(MAKE_GETTER)
+#undef MAKE_GETTER
+};
+} // namespace detail
+
+template <typename Object, typename Tag = void>
+using CompactStorage = typename std::conditional_t<
+        std::conjunction_v<
+            std::is_empty<Object>,
+            std::negation<std::is_final<Object>>
+        >,
+        detail::StorageEmptyBaseClassOptimization<Object, Tag>,
+        detail::StorageByValue<Object, Tag>
+    >;
+
+} // namespace QtPrivate
+
+#undef FOR_EACH_CVREF
+
+QT_END_NAMESPACE
+
+#endif // QFUNCTIONALTOOLS_IMPL_H
diff --git a/src/corelib/tools/qhash.h b/src/corelib/tools/qhash.h
index 9b294295..a4de3e37 100644
--- a/src/corelib/tools/qhash.h
+++ b/src/corelib/tools/qhash.h
@@ -699,22 +699,10 @@ struct Data
 
     Node *findNode(const Key &key) const noexcept
     {
-        Q_ASSERT(numBuckets > 0);
-        size_t hash = QHashPrivate::calculateHash(key, seed);
-        Bucket bucket(this, GrowthPolicy::bucketForHash(numBuckets, hash));
-        // loop over the buckets until we find the entry we search for
-        // or an empty slot, in which case we know the entry doesn't exist
-        while (true) {
-            size_t offset = bucket.offset();
-            if (offset == SpanConstants::UnusedEntry) {
-                return nullptr;
-            } else {
-                Node &n = bucket.nodeAtOffset(offset);
-                if (qHashEquals(n.key, key))
-                    return &n;
-            }
-            bucket.advanceWrapped(this);
-        }
+        auto bucket = findBucket(key);
+        if (bucket.isUnused())
+            return nullptr;
+        return bucket.node();
     }
 
     struct InsertionResult
diff --git a/src/corelib/tools/qiterator.h b/src/corelib/tools/qiterator.h
index cff535d0..ab3d71f7 100644
--- a/src/corelib/tools/qiterator.h
+++ b/src/corelib/tools/qiterator.h
@@ -10,6 +10,13 @@ QT_BEGIN_NAMESPACE
 
 #if !defined(QT_NO_JAVA_STYLE_ITERATORS)
 
+#ifdef Q_QDOC
+#define Q_DISABLE_BACKWARD_ITERATOR
+#else
+#define Q_DISABLE_BACKWARD_ITERATOR \
+        template<typename It = decltype(i), QtPrivate::IfIteratorCanMoveBackwards<It> = true>
+#endif
+
 #define Q_DECLARE_SEQUENTIAL_ITERATOR(C) \
 \
 template <class T> \
@@ -28,11 +35,15 @@ public: \
     inline bool hasNext() const { return i != c.constEnd(); } \
     inline const T &next() { return *i++; } \
     inline const T &peekNext() const { return *i; } \
+    Q_DISABLE_BACKWARD_ITERATOR \
     inline bool hasPrevious() const { return i != c.constBegin(); } \
+    Q_DISABLE_BACKWARD_ITERATOR \
     inline const T &previous() { return *--i; } \
+    Q_DISABLE_BACKWARD_ITERATOR \
     inline const T &peekPrevious() const { const_iterator p = i; return *--p; } \
     inline bool findNext(const T &t) \
     { while (i != c.constEnd()) if (*i++ == t) return true; return false; } \
+    Q_DISABLE_BACKWARD_ITERATOR \
     inline bool findPrevious(const T &t) \
     { while (i != c.constBegin()) if (*(--i) == t) return true; \
       return false;  } \
@@ -59,8 +70,11 @@ public: \
     inline bool hasNext() const { return c->constEnd() != const_iterator(i); } \
     inline T &next() { n = i++; return *n; } \
     inline T &peekNext() const { return *i; } \
+    Q_DISABLE_BACKWARD_ITERATOR \
     inline bool hasPrevious() const { return c->constBegin() != const_iterator(i); } \
+    Q_DISABLE_BACKWARD_ITERATOR \
     inline T &previous() { n = --i; return *n; } \
+    Q_DISABLE_BACKWARD_ITERATOR \
     inline T &peekPrevious() const { iterator p = i; return *--p; } \
     inline void remove() \
     { if (c->constEnd() != const_iterator(n)) { i = c->erase(n); n = c->end(); } } \
@@ -70,6 +84,7 @@ public: \
     inline void insert(const T &t) { n = i = c->insert(i, t); ++i; } \
     inline bool findNext(const T &t) \
     { while (c->constEnd() != const_iterator(n = i)) if (*i++ == t) return true; return false; } \
+    Q_DISABLE_BACKWARD_ITERATOR \
     inline bool findPrevious(const T &t) \
     { while (c->constBegin() != const_iterator(i)) if (*(n = --i) == t) return true; \
       n = c->end(); return false;  } \
@@ -95,13 +110,17 @@ public: \
     inline bool hasNext() const { return i != c.constEnd(); } \
     inline Item next() { n = i++; return n; } \
     inline Item peekNext() const { return i; } \
+    Q_DISABLE_BACKWARD_ITERATOR \
     inline bool hasPrevious() const { return i != c.constBegin(); } \
+    Q_DISABLE_BACKWARD_ITERATOR \
     inline Item previous() { n = --i; return n; } \
+    Q_DISABLE_BACKWARD_ITERATOR \
     inline Item peekPrevious() const { const_iterator p = i; return --p; } \
     inline const T &value() const { Q_ASSERT(item_exists()); return *n; } \
     inline const Key &key() const { Q_ASSERT(item_exists()); return n.key(); } \
     inline bool findNext(const T &t) \
     { while ((n = i) != c.constEnd()) if (*i++ == t) return true; return false; } \
+    Q_DISABLE_BACKWARD_ITERATOR \
     inline bool findPrevious(const T &t) \
     { while (i != c.constBegin()) if (*(n = --i) == t) return true; \
       n = c.constEnd(); return false; } \
@@ -129,8 +148,11 @@ public: \
     inline bool hasNext() const { return const_iterator(i) != c->constEnd(); } \
     inline Item next() { n = i++; return n; } \
     inline Item peekNext() const { return i; } \
+    Q_DISABLE_BACKWARD_ITERATOR \
     inline bool hasPrevious() const { return const_iterator(i) != c->constBegin(); } \
+    Q_DISABLE_BACKWARD_ITERATOR \
     inline Item previous() { n = --i; return n; } \
+    Q_DISABLE_BACKWARD_ITERATOR \
     inline Item peekPrevious() const { iterator p = i; return --p; } \
     inline void remove() \
     { if (const_iterator(n) != c->constEnd()) { i = c->erase(n); n = c->end(); } } \
@@ -140,6 +162,7 @@ public: \
     inline const Key &key() const { Q_ASSERT(item_exists()); return n.key(); } \
     inline bool findNext(const T &t) \
     { while (const_iterator(n = i) != c->constEnd()) if (*i++ == t) return true; return false; } \
+    Q_DISABLE_BACKWARD_ITERATOR \
     inline bool findPrevious(const T &t) \
     { while (const_iterator(i) != c->constBegin()) if (*(n = --i) == t) return true; \
       n = c->end(); return false; } \
diff --git a/src/corelib/tools/qiterator.qdoc b/src/corelib/tools/qiterator.qdoc
index 3fc68e08..f84d1cb3 100644
--- a/src/corelib/tools/qiterator.qdoc
+++ b/src/corelib/tools/qiterator.qdoc
@@ -213,12 +213,8 @@
 
     \image javaiterators1.png
 
-    Here's how to iterate over the elements in reverse order:
-
-    \snippet code/doc_src_qiterator.cpp 7
-
     If you want to find all occurrences of a particular value, use
-    findNext() or findPrevious() in a loop.
+    findNext() in a loop.
 
     Multiple iterators can be used on the same set. If the set
     is modified while a QSetIterator is active, the QSetIterator
@@ -389,15 +385,21 @@
 */
 
 /*! \fn template <class T> void QListIterator<T>::toBack()
-    \fn template <class T> void QSetIterator<T>::toBack()
     \fn template <class T> void QMutableListIterator<T>::toBack()
 
+//! [toBack]
     Moves the iterator to the back of the container (after the last
     item).
+//! [toBack]
 
     \sa toFront(), previous()
 */
 
+/*! \fn template <class T> void QSetIterator<T>::toBack()
+    \include qiterator.qdoc toBack
+    \sa toFront()
+*/
+
 /*! \fn template <class T> void QMutableSetIterator<T>::toBack()
 
     Moves the iterator to the back of the container (after the last
@@ -407,16 +409,22 @@
 */
 
 /*! \fn template <class T> bool QListIterator<T>::hasNext() const
-    \fn template <class T> bool QSetIterator<T>::hasNext() const
     \fn template <class T> bool QMutableListIterator<T>::hasNext() const
 
+//! [hasNext]
     Returns \c true if there is at least one item ahead of the iterator,
     i.e. the iterator is \e not at the back of the container;
     otherwise returns \c false.
+//! [hasNext]
 
     \sa hasPrevious(), next()
 */
 
+/*! \fn template <class T> bool QSetIterator<T>::hasNext() const
+    \include qiterator.qdoc hasNext
+    \sa next()
+*/
+
 /*! \fn template <class T> bool QMutableSetIterator<T>::hasNext() const
 
     Returns \c true if there is at least one item ahead of the iterator,
@@ -427,16 +435,23 @@
 */
 
 /*! \fn template <class T> const T &QListIterator<T>::next()
-    \fn template <class T> const T &QSetIterator<T>::next()
 
+//! [next]
     Returns the next item and advances the iterator by one position.
 
     Calling this function on an iterator located at the back of the
     container leads to undefined results.
+//! [next]
 
     \sa hasNext(), peekNext(), previous()
 */
 
+/*!
+    \fn template <class T> const T &QSetIterator<T>::next()
+    \include qiterator.qdoc next
+    \sa hasNext(), peekNext()
+*/
+
 /* \fn template <class T> const T &QMutableSetIterator<T>::next()
     Returns the next item and advances the iterator by one position.
 
@@ -468,16 +483,23 @@
 */
 
 /*! \fn template <class T> const T &QListIterator<T>::peekNext() const
-    \fn template <class T> const T &QSetIterator<T>::peekNext() const
 
+//! [peekNext]
     Returns the next item without moving the iterator.
 
     Calling this function on an iterator located at the back of the
     container leads to undefined results.
+//! [peekNext]
 
     \sa hasNext(), next(), peekPrevious()
 */
 
+/*!
+    \fn template <class T> const T &QSetIterator<T>::peekNext() const
+    \include qiterator.qdoc peekNext
+    \sa hasNext(), next()
+*/
+
 /*!
     \fn template <class T> const T &QMutableSetIterator<T>::peekNext() const
 
@@ -500,7 +522,6 @@
 */
 
 /*! \fn template <class T> bool QListIterator<T>::hasPrevious() const
-    \fn template <class T> bool QSetIterator<T>::hasPrevious() const
     \fn template <class T> bool QMutableListIterator<T>::hasPrevious() const
 
     Returns \c true if there is at least one item behind the iterator,
@@ -511,7 +532,6 @@
 */
 
 /*! \fn template <class T> const T &QListIterator<T>::previous()
-    \fn template <class T> const T &QSetIterator<T>::previous()
 
     Returns the previous item and moves the iterator back by one
     position.
@@ -534,7 +554,6 @@
 */
 
 /*! \fn template <class T> const T &QListIterator<T>::peekPrevious() const
-    \fn template <class T> const T &QSetIterator<T>::peekPrevious() const
 
     Returns the previous item without moving the iterator.
 
@@ -566,21 +585,25 @@
 */
 
 /*! \fn template <class T> bool QListIterator<T>::findNext(const T &value)
-    \fn template <class T> bool QSetIterator<T>::findNext(const T &value)
     \fn template <class T> bool QMutableListIterator<T>::findNext(const T &value)
 
+//! [findNext]
     Searches for \a value starting from the current iterator position
     forward. Returns \c true if \a value is found; otherwise returns \c false.
 
     After the call, if \a value was found, the iterator is positioned
     just after the matching item; otherwise, the iterator is
     positioned at the back of the container.
+//! [findNext]
 
     \sa findPrevious()
 */
 
+/*! \fn template <class T> bool QSetIterator<T>::findNext(const T &value)
+    \include qiterator.qdoc findNext
+*/
+
 /*! \fn template <class T> bool QListIterator<T>::findPrevious(const T &value)
-    \fn template <class T> bool QSetIterator<T>::findPrevious(const T &value)
     \fn template <class T> bool QMutableListIterator<T>::findPrevious(const T &value)
 
     Searches for \a value starting from the current iterator position
diff --git a/src/corelib/tools/qlist.h b/src/corelib/tools/qlist.h
index d61b9050..79de8fce 100644
--- a/src/corelib/tools/qlist.h
+++ b/src/corelib/tools/qlist.h
@@ -16,6 +16,8 @@
 #include <initializer_list>
 #include <type_traits>
 
+class tst_QList;
+
 QT_BEGIN_NAMESPACE
 
 namespace QtPrivate {
@@ -75,10 +77,15 @@ class QList
     using DataPointer = QArrayDataPointer<T>;
     class DisableRValueRefs {};
 
+    friend class ::tst_QList;
+
     DataPointer d;
 
     template <typename V, typename U> friend qsizetype QtPrivate::indexOf(const QList<V> &list, const U &u, qsizetype from) noexcept;
     template <typename V, typename U> friend qsizetype QtPrivate::lastIndexOf(const QList<V> &list, const U &u, qsizetype from) noexcept;
+    // This alias prevents the QtPrivate namespace from being exposed into the docs.
+    template <typename InputIterator>
+    using if_input_iterator = QtPrivate::IfIsInputIterator<InputIterator>;
 
 public:
     using Type = T;
@@ -287,7 +294,8 @@ public:
             d->copyAppend(args.begin(), args.end());
         return *this;
     }
-    template <typename InputIterator, QtPrivate::IfIsInputIterator<InputIterator> = true>
+
+    template <typename InputIterator, if_input_iterator<InputIterator> = true>
     QList(InputIterator i1, InputIterator i2)
     {
         if constexpr (!std::is_convertible_v<typename std::iterator_traits<InputIterator>::iterator_category, std::forward_iterator_tag>) {
@@ -488,6 +496,19 @@ public:
         }
     }
 
+    QList &assign(qsizetype n, parameter_type t)
+    {
+        Q_ASSERT(n >= 0);
+        return fill(t, n);
+    }
+
+    template <typename InputIterator, if_input_iterator<InputIterator> = true>
+    QList &assign(InputIterator first, InputIterator last)
+    { d.assign(first, last); return *this; }
+
+    QList &assign(std::initializer_list<T> l)
+    { return assign(l.begin(), l.end()); }
+
     template <typename ...Args>
     iterator emplace(const_iterator before, Args&&... args)
     {
diff --git a/src/corelib/tools/qlist.qdoc b/src/corelib/tools/qlist.qdoc
index 52aa359c..f0e24df2 100644
--- a/src/corelib/tools/qlist.qdoc
+++ b/src/corelib/tools/qlist.qdoc
@@ -274,11 +274,15 @@
     Constructs a list from the std::initializer_list given by \a args.
 */
 
-/*! \fn template <typename T> template<typename InputIterator> QList<T>::QList(InputIterator first, InputIterator last)
+/*! \fn template <typename T> template<typename InputIterator, if_input_iterator<InputIterator>> QList<T>::QList(InputIterator first, InputIterator last)
     \since 5.14
 
     Constructs a list with the contents in the iterator range [\a first, \a last).
 
+    \note This constructor only participates in overload resolution if
+    \c InputIterator meets the requirements of a
+    \l {https://en.cppreference.com/w/cpp/named_req/InputIterator} {LegacyInputIterator}.
+
     The value type of \c InputIterator must be convertible to \c T.
 */
 
@@ -1534,3 +1538,47 @@
 
     \sa erase
 */
+
+/*! \fn template <typename T> QList<T>::assign(qsizetype n, parameter_type t)
+    \since 6.6
+
+    Replaces the contents of this list with \a n copies of \a t.
+
+    The size of this list will be equal to \a n.
+
+    This function will only allocate memory if \a n exceeds the capacity of the
+    list or this list is shared.
+*/
+
+/*! \fn template <typename T> template <typename InputIterator, if_input_iterator<InputIterator>> QList<T>::assign(InputIterator first, InputIterator last)
+    \since 6.6
+
+    Replaces the contents of this list with a copy of the elements in the
+    iterator range [\a first, \a last).
+
+    The size of this list will be equal to the number of elements in the
+    range [\a first, \a last).
+
+    This function will only allocate memory if the number of elements in the
+    range exceeds the capacity of this list or this list is shared.
+
+    \note This function overload only participates in overload resolution if
+    \c InputIterator meets the requirements of a
+    \l {https://en.cppreference.com/w/cpp/named_req/InputIterator} {LegacyInputIterator}.
+
+    \note The behavior is undefined if either argument is an iterator into
+    *this.
+*/
+
+/*! \fn template <typename T> QList<T>::assign(std::initializer_list<T> l)
+    \since 6.6
+
+    Replaces the contents of this list with a copy of the elements of
+    \a l.
+
+    The size of this list will be equal to the number of elements in
+    \a l.
+
+    This function only allocates memory if the number of elements in \a l
+    exceeds the capacity of this list or this list is shared.
+*/
diff --git a/src/corelib/tools/qmargins.h b/src/corelib/tools/qmargins.h
index 2d494f44..f8d7150d 100644
--- a/src/corelib/tools/qmargins.h
+++ b/src/corelib/tools/qmargins.h
@@ -6,8 +6,13 @@
 
 #include <QtCore/qnamespace.h>
 
+#include <QtCore/q20type_traits.h>
+#include <QtCore/q23utility.h>
+
 QT_BEGIN_NAMESPACE
 
+QT_ENABLE_P0846_SEMANTICS_FOR(get)
+
 class QMarginsF;
 
 /*****************************************************************************
@@ -66,17 +71,17 @@ private:
     template <std::size_t I,
               typename M,
               std::enable_if_t<(I < 4), bool> = true,
-              std::enable_if_t<std::is_same_v<std::decay_t<M>, QMargins>, bool> = true>
+              std::enable_if_t<std::is_same_v<q20::remove_cvref_t<M>, QMargins>, bool> = true>
     friend constexpr decltype(auto) get(M &&m) noexcept
     {
         if constexpr (I == 0)
-            return (std::forward<M>(m).m_left);
+            return q23::forward_like<M>(m.m_left);
         else if constexpr (I == 1)
-            return (std::forward<M>(m).m_top);
+            return q23::forward_like<M>(m.m_top);
         else if constexpr (I == 2)
-            return (std::forward<M>(m).m_right);
+            return q23::forward_like<M>(m.m_right);
         else if constexpr (I == 3)
-            return (std::forward<M>(m).m_bottom);
+            return q23::forward_like<M>(m.m_bottom);
     }
 };
 
@@ -315,17 +320,17 @@ private:
     template <std::size_t I,
               typename M,
               std::enable_if_t<(I < 4), bool> = true,
-              std::enable_if_t<std::is_same_v<std::decay_t<M>, QMarginsF>, bool> = true>
+              std::enable_if_t<std::is_same_v<q20::remove_cvref_t<M>, QMarginsF>, bool> = true>
     friend constexpr decltype(auto) get(M &&m) noexcept
     {
         if constexpr (I == 0)
-            return (std::forward<M>(m).m_left);
+            return q23::forward_like<M>(m.m_left);
         else if constexpr (I == 1)
-            return (std::forward<M>(m).m_top);
+            return q23::forward_like<M>(m.m_top);
         else if constexpr (I == 2)
-            return (std::forward<M>(m).m_right);
+            return q23::forward_like<M>(m.m_right);
         else if constexpr (I == 3)
-            return (std::forward<M>(m).m_bottom);
+            return q23::forward_like<M>(m.m_bottom);
     }
 };
 
diff --git a/src/corelib/tools/qmessageauthenticationcode.h b/src/corelib/tools/qmessageauthenticationcode.h
index 3951a6e5..4e881387 100644
--- a/src/corelib/tools/qmessageauthenticationcode.h
+++ b/src/corelib/tools/qmessageauthenticationcode.h
@@ -16,22 +16,44 @@ class QIODevice;
 class Q_CORE_EXPORT QMessageAuthenticationCode
 {
 public:
+#if QT_CORE_REMOVED_SINCE(6, 6)
     explicit QMessageAuthenticationCode(QCryptographicHash::Algorithm method,
-                                        const QByteArray &key = QByteArray());
+                                        const QByteArray &key);
+#endif
+    explicit QMessageAuthenticationCode(QCryptographicHash::Algorithm method,
+                                        QByteArrayView key = {});
+
+    QMessageAuthenticationCode(QMessageAuthenticationCode &&other) noexcept
+        : d{std::exchange(other.d, nullptr)} {}
     ~QMessageAuthenticationCode();
 
-    void reset();
+    QT_MOVE_ASSIGNMENT_OPERATOR_IMPL_VIA_MOVE_AND_SWAP(QMessageAuthenticationCode)
+    void swap(QMessageAuthenticationCode &other) noexcept
+    { qt_ptr_swap(d, other.d); }
 
+    void reset() noexcept;
+
+#if QT_CORE_REMOVED_SINCE(6, 6)
     void setKey(const QByteArray &key);
+#endif
+    void setKey(QByteArrayView key) noexcept;
 
     void addData(const char *data, qsizetype length);
+#if QT_CORE_REMOVED_SINCE(6, 6)
     void addData(const QByteArray &data);
+#endif
+    void addData(QByteArrayView data) noexcept;
     bool addData(QIODevice *device);
 
+    QByteArrayView resultView() const noexcept;
     QByteArray result() const;
 
+#if QT_CORE_REMOVED_SINCE(6, 6)
     static QByteArray hash(const QByteArray &message, const QByteArray &key,
                            QCryptographicHash::Algorithm method);
+#endif
+    static QByteArray hash(QByteArrayView message, QByteArrayView key,
+                           QCryptographicHash::Algorithm method);
 
 private:
     Q_DISABLE_COPY(QMessageAuthenticationCode)
diff --git a/src/corelib/tools/qpoint.h b/src/corelib/tools/qpoint.h
index 48c5e91f..7df4d490 100644
--- a/src/corelib/tools/qpoint.h
+++ b/src/corelib/tools/qpoint.h
@@ -6,12 +6,17 @@
 
 #include <QtCore/qnamespace.h>
 
+#include <QtCore/q20type_traits.h>
+#include <QtCore/q23utility.h>
+
 #if defined(Q_OS_DARWIN) || defined(Q_QDOC)
 struct CGPoint;
 #endif
 
 QT_BEGIN_NAMESPACE
 
+QT_ENABLE_P0846_SEMANTICS_FOR(get)
+
 class QPointF;
 
 class QPoint
@@ -86,13 +91,13 @@ private:
     template <std::size_t I,
               typename P,
               std::enable_if_t<(I < 2), bool> = true,
-              std::enable_if_t<std::is_same_v<std::decay_t<P>, QPoint>, bool> = true>
+              std::enable_if_t<std::is_same_v<q20::remove_cvref_t<P>, QPoint>, bool> = true>
     friend constexpr decltype(auto) get(P &&p) noexcept
     {
         if constexpr (I == 0)
-            return (std::forward<P>(p).xp);
+            return q23::forward_like<P>(p.xp);
         else if constexpr (I == 1)
-            return (std::forward<P>(p).yp);
+            return q23::forward_like<P>(p.yp);
     }
 };
 
@@ -283,13 +288,13 @@ private:
     template <std::size_t I,
               typename P,
               std::enable_if_t<(I < 2), bool> = true,
-              std::enable_if_t<std::is_same_v<std::decay_t<P>, QPointF>, bool> = true>
+              std::enable_if_t<std::is_same_v<q20::remove_cvref_t<P>, QPointF>, bool> = true>
     friend constexpr decltype(auto) get(P &&p) noexcept
     {
         if constexpr (I == 0)
-            return (std::forward<P>(p).xp);
+            return q23::forward_like<P>(p.xp);
         else if constexpr (I == 1)
-            return (std::forward<P>(p).yp);
+            return q23::forward_like<P>(p.yp);
     }
 };
 
diff --git a/src/corelib/tools/qscopedpointer.h b/src/corelib/tools/qscopedpointer.h
index 1637bb40..59bae9b9 100644
--- a/src/corelib/tools/qscopedpointer.h
+++ b/src/corelib/tools/qscopedpointer.h
@@ -67,9 +67,10 @@ typedef QScopedPointerObjectDeleteLater<QObject> QScopedPointerDeleteLater;
 #endif
 
 template <typename T, typename Cleanup = QScopedPointerDeleter<T> >
-class [[nodiscard]] QScopedPointer
+class QScopedPointer
 {
 public:
+    Q_NODISCARD_CTOR
     explicit QScopedPointer(T *p = nullptr) noexcept : d(p)
     {
     }
@@ -187,15 +188,17 @@ private:
 };
 
 template <typename T, typename Cleanup = QScopedPointerArrayDeleter<T> >
-class [[nodiscard]] QScopedArrayPointer : public QScopedPointer<T, Cleanup>
+class QScopedArrayPointer : public QScopedPointer<T, Cleanup>
 {
     template <typename Ptr>
     using if_same_type = typename std::enable_if<std::is_same<typename std::remove_cv<T>::type, Ptr>::value, bool>::type;
 public:
+    Q_NODISCARD_CTOR
     inline QScopedArrayPointer() : QScopedPointer<T, Cleanup>(nullptr) {}
     inline ~QScopedArrayPointer() = default;
 
     template <typename D, if_same_type<D> = true>
+    Q_NODISCARD_CTOR
     explicit QScopedArrayPointer(D *p)
         : QScopedPointer<T, Cleanup>(p)
     {
diff --git a/src/corelib/tools/qscopedvaluerollback.h b/src/corelib/tools/qscopedvaluerollback.h
index a4a451b0..0ae3efd0 100644
--- a/src/corelib/tools/qscopedvaluerollback.h
+++ b/src/corelib/tools/qscopedvaluerollback.h
@@ -9,17 +9,20 @@
 QT_BEGIN_NAMESPACE
 
 template <typename T>
-class [[nodiscard]] QScopedValueRollback
+class QScopedValueRollback
 {
 public:
+    Q_NODISCARD_CTOR
     explicit constexpr QScopedValueRollback(T &var)
         : varRef(var), oldValue(var)
     {
     }
 
+    Q_NODISCARD_CTOR
     explicit constexpr QScopedValueRollback(T &var, T value)
-        : varRef(var), oldValue(qExchange(var, std::move(value)))
+        : varRef(var), oldValue(std::move(var)) // ### C++20: std::exchange(var, std::move(value))
     {
+        var = std::move(value);
     }
 
 #if __cpp_constexpr >= 201907L
diff --git a/src/corelib/tools/qscopeguard.h b/src/corelib/tools/qscopeguard.h
index 5bd202ce..9be6634c 100644
--- a/src/corelib/tools/qscopeguard.h
+++ b/src/corelib/tools/qscopeguard.h
@@ -13,19 +13,22 @@
 QT_BEGIN_NAMESPACE
 
 template <typename F>
-class [[nodiscard]] QScopeGuard
+class QScopeGuard
 {
 public:
+    Q_NODISCARD_CTOR
     explicit QScopeGuard(F &&f) noexcept
         : m_func(std::move(f))
     {
     }
 
+    Q_NODISCARD_CTOR
     explicit QScopeGuard(const F &f) noexcept
         : m_func(f)
     {
     }
 
+    Q_NODISCARD_CTOR
     QScopeGuard(QScopeGuard &&other) noexcept
         : m_func(std::move(other.m_func))
         , m_invoke(std::exchange(other.m_invoke, false))
diff --git a/src/corelib/tools/qshareddata.h b/src/corelib/tools/qshareddata.h
index 826152b6..4c4153a5 100644
--- a/src/corelib/tools/qshareddata.h
+++ b/src/corelib/tools/qshareddata.h
@@ -51,13 +51,17 @@ public:
     const T *constData() const noexcept { return d; }
     T *take() noexcept { return std::exchange(d, nullptr); }
 
+    Q_NODISCARD_CTOR
     QSharedDataPointer() noexcept : d(nullptr) { }
     ~QSharedDataPointer() { if (d && !d->ref.deref()) delete d; }
 
+    Q_NODISCARD_CTOR
     explicit QSharedDataPointer(T *data) noexcept : d(data)
     { if (d) d->ref.ref(); }
+    Q_NODISCARD_CTOR
     QSharedDataPointer(T *data, QAdoptSharedDataTag) noexcept : d(data)
     {}
+    Q_NODISCARD_CTOR
     QSharedDataPointer(const QSharedDataPointer &o) noexcept : d(o.d)
     { if (d) d->ref.ref(); }
 
@@ -82,6 +86,7 @@ public:
         reset(o);
         return *this;
     }
+    Q_NODISCARD_CTOR
     QSharedDataPointer(QSharedDataPointer &&o) noexcept : d(std::exchange(o.d, nullptr)) {}
     QT_MOVE_ASSIGNMENT_OPERATOR_IMPL_VIA_MOVE_AND_SWAP(QSharedDataPointer)
 
@@ -139,17 +144,22 @@ public:
 
     void detach() { if (d && d->ref.loadRelaxed() != 1) detach_helper(); }
 
+    Q_NODISCARD_CTOR
     QExplicitlySharedDataPointer() noexcept : d(nullptr) { }
     ~QExplicitlySharedDataPointer() { if (d && !d->ref.deref()) delete d; }
 
+    Q_NODISCARD_CTOR
     explicit QExplicitlySharedDataPointer(T *data) noexcept : d(data)
     { if (d) d->ref.ref(); }
+    Q_NODISCARD_CTOR
     QExplicitlySharedDataPointer(T *data, QAdoptSharedDataTag) noexcept : d(data)
     {}
+    Q_NODISCARD_CTOR
     QExplicitlySharedDataPointer(const QExplicitlySharedDataPointer &o) noexcept : d(o.d)
     { if (d) d->ref.ref(); }
 
     template<typename X>
+    Q_NODISCARD_CTOR
     QExplicitlySharedDataPointer(const QExplicitlySharedDataPointer<X> &o) noexcept
 #ifdef QT_ENABLE_QEXPLICITLYSHAREDDATAPOINTER_STATICCAST
         : d(static_cast<T *>(o.data()))
@@ -179,6 +189,7 @@ public:
         reset(o);
         return *this;
     }
+    Q_NODISCARD_CTOR
     QExplicitlySharedDataPointer(QExplicitlySharedDataPointer &&o) noexcept : d(std::exchange(o.d, nullptr)) {}
     QT_MOVE_ASSIGNMENT_OPERATOR_IMPL_VIA_MOVE_AND_SWAP(QExplicitlySharedDataPointer)
 
diff --git a/src/corelib/tools/qsharedpointer.cpp b/src/corelib/tools/qsharedpointer.cpp
index 3fa9bbd0..7ed38471 100644
--- a/src/corelib/tools/qsharedpointer.cpp
+++ b/src/corelib/tools/qsharedpointer.cpp
@@ -1463,7 +1463,7 @@ QT_END_NAMESPACE
 #  ifdef QT_SHARED_POINTER_BACKTRACE_SUPPORT
 #    if defined(__GLIBC__) && (__GLIBC__ >= 2) && !defined(__UCLIBC__) && !defined(QT_LINUXBASE)
 #      define BACKTRACE_SUPPORTED
-#    elif defined(Q_OS_MAC)
+#    elif defined(Q_OS_DARWIN)
 #      define BACKTRACE_SUPPORTED
 #    endif
 #  endif
diff --git a/src/corelib/tools/qsharedpointer_impl.h b/src/corelib/tools/qsharedpointer_impl.h
index 9777b1a0..7927a6dd 100644
--- a/src/corelib/tools/qsharedpointer_impl.h
+++ b/src/corelib/tools/qsharedpointer_impl.h
@@ -276,23 +276,29 @@ public:
     T &operator*() const { return *data(); }
     T *operator->() const noexcept { return data(); }
 
+    Q_NODISCARD_CTOR
     constexpr QSharedPointer() noexcept : value(nullptr), d(nullptr) { }
     ~QSharedPointer() { deref(); }
 
+    Q_NODISCARD_CTOR
     constexpr QSharedPointer(std::nullptr_t) noexcept : value(nullptr), d(nullptr) { }
 
     template <class X, IfCompatible<X> = true>
+    Q_NODISCARD_CTOR
     inline explicit QSharedPointer(X *ptr) : value(ptr) // noexcept
     { internalConstruct(ptr, QtSharedPointer::NormalDeleter()); }
 
     template <class X, typename Deleter, IfCompatible<X> = true>
+    Q_NODISCARD_CTOR
     inline QSharedPointer(X *ptr, Deleter deleter) : value(ptr) // throws
     { internalConstruct(ptr, deleter); }
 
     template <typename Deleter>
+    Q_NODISCARD_CTOR
     QSharedPointer(std::nullptr_t, Deleter deleter) : value(nullptr)
     { internalConstruct(static_cast<T *>(nullptr), deleter); }
 
+    Q_NODISCARD_CTOR
     QSharedPointer(const QSharedPointer &other) noexcept : value(other.value), d(other.d)
     { if (d) ref(); }
     QSharedPointer &operator=(const QSharedPointer &other) noexcept
@@ -301,6 +307,7 @@ public:
         swap(copy);
         return *this;
     }
+    Q_NODISCARD_CTOR
     QSharedPointer(QSharedPointer &&other) noexcept
         : value(other.value), d(other.d)
     {
@@ -310,6 +317,7 @@ public:
     QT_MOVE_ASSIGNMENT_OPERATOR_IMPL_VIA_MOVE_AND_SWAP(QSharedPointer)
 
     template <class X, IfCompatible<X> = true>
+    Q_NODISCARD_CTOR
     QSharedPointer(QSharedPointer<X> &&other) noexcept
         : value(other.value), d(other.d)
     {
@@ -326,6 +334,7 @@ public:
     }
 
     template <class X, IfCompatible<X> = true>
+    Q_NODISCARD_CTOR
     QSharedPointer(const QSharedPointer<X> &other) noexcept : value(other.value), d(other.d)
     { if (d) ref(); }
 
@@ -338,6 +347,7 @@ public:
     }
 
     template <class X, IfCompatible<X> = true>
+    Q_NODISCARD_CTOR
     inline QSharedPointer(const QWeakPointer<X> &other) : value(nullptr), d(nullptr)
     { *this = other; }
 
@@ -434,6 +444,7 @@ public:
 #undef DECLARE_COMPARE_SET
 
 private:
+    Q_NODISCARD_CTOR
     explicit QSharedPointer(Qt::Initialization) {}
 
     void deref() noexcept
@@ -539,11 +550,14 @@ public:
     explicit operator bool() const noexcept { return !isNull(); }
     bool operator !() const noexcept { return isNull(); }
 
+    Q_NODISCARD_CTOR
     constexpr QWeakPointer() noexcept : d(nullptr), value(nullptr) { }
     inline ~QWeakPointer() { if (d && !d->weakref.deref()) delete d; }
 
+    Q_NODISCARD_CTOR
     QWeakPointer(const QWeakPointer &other) noexcept : d(other.d), value(other.value)
     { if (d) d->weakref.ref(); }
+    Q_NODISCARD_CTOR
     QWeakPointer(QWeakPointer &&other) noexcept
         : d(other.d), value(other.value)
     {
@@ -553,6 +567,7 @@ public:
     QT_MOVE_ASSIGNMENT_OPERATOR_IMPL_VIA_MOVE_AND_SWAP(QWeakPointer)
 
     template <class X, IfCompatible<X> = true>
+    Q_NODISCARD_CTOR
     QWeakPointer(QWeakPointer<X> &&other) noexcept
         : d(other.d), value(other.value)
     {
@@ -581,6 +596,7 @@ public:
         qt_ptr_swap(this->value, other.value);
     }
 
+    Q_NODISCARD_CTOR
     inline QWeakPointer(const QSharedPointer<T> &o) : d(o.d), value(o.data())
     { if (d) d->weakref.ref();}
     inline QWeakPointer &operator=(const QSharedPointer<T> &o)
@@ -590,6 +606,7 @@ public:
     }
 
     template <class X, IfCompatible<X> = true>
+    Q_NODISCARD_CTOR
     inline QWeakPointer(const QWeakPointer<X> &o) : d(nullptr), value(nullptr)
     { *this = o; }
 
@@ -603,6 +620,7 @@ public:
     }
 
     template <class X, IfCompatible<X> = true>
+    Q_NODISCARD_CTOR
     inline QWeakPointer(const QSharedPointer<X> &o) : d(nullptr), value(nullptr)
     { *this = o; }
 
@@ -663,6 +681,7 @@ private:
 
 #ifndef QT_NO_QOBJECT
     template <class X, IfCompatible<X> = true>
+    Q_NODISCARD_CTOR
     inline QWeakPointer(X *ptr, bool) : d(ptr ? Data::getAndRef(ptr) : nullptr), value(ptr)
     { }
 #endif
diff --git a/src/corelib/tools/qsize.h b/src/corelib/tools/qsize.h
index 71066c35..a5eaf34a 100644
--- a/src/corelib/tools/qsize.h
+++ b/src/corelib/tools/qsize.h
@@ -8,12 +8,17 @@
 #include <QtCore/qhashfunctions.h>
 #include <QtCore/qmargins.h>
 
+#include <QtCore/q20type_traits.h>
+#include <QtCore/q23utility.h>
+
 #if defined(Q_OS_DARWIN) || defined(Q_QDOC)
 struct CGSize;
 #endif
 
 QT_BEGIN_NAMESPACE
 
+// QT_ENABLE_P0846_SEMANTICS_FOR(get) // from qmargins.h
+
 class QSizeF;
 
 class Q_CORE_EXPORT QSize
@@ -83,13 +88,13 @@ private:
     template <std::size_t I,
               typename S,
               std::enable_if_t<(I < 2), bool> = true,
-              std::enable_if_t<std::is_same_v<std::decay_t<S>, QSize>, bool> = true>
+              std::enable_if_t<std::is_same_v<q20::remove_cvref_t<S>, QSize>, bool> = true>
     friend constexpr decltype(auto) get(S &&s) noexcept
     {
         if constexpr (I == 0)
-            return (std::forward<S>(s).wd);
+            return q23::forward_like<S>(s.wd);
         else if constexpr (I == 1)
-            return (std::forward<S>(s).ht);
+            return q23::forward_like<S>(s.ht);
     }
 };
 Q_DECLARE_TYPEINFO(QSize, Q_RELOCATABLE_TYPE);
@@ -272,13 +277,13 @@ private:
     template <std::size_t I,
               typename S,
               std::enable_if_t<(I < 2), bool> = true,
-              std::enable_if_t<std::is_same_v<std::decay_t<S>, QSizeF>, bool> = true>
+              std::enable_if_t<std::is_same_v<q20::remove_cvref_t<S>, QSizeF>, bool> = true>
     friend constexpr decltype(auto) get(S &&s) noexcept
     {
         if constexpr (I == 0)
-            return (std::forward<S>(s).wd);
+            return q23::forward_like<S>(s.wd);
         else if constexpr (I == 1)
-            return (std::forward<S>(s).ht);
+            return q23::forward_like<S>(s.ht);
     }
 };
 Q_DECLARE_TYPEINFO(QSizeF, Q_RELOCATABLE_TYPE);
diff --git a/src/corelib/tools/qspan_p.h b/src/corelib/tools/qspan_p.h
new file mode 100644
index 00000000..c2fc6386
--- /dev/null
+++ b/src/corelib/tools/qspan_p.h
@@ -0,0 +1,371 @@
+// Copyright (C) 2023 The Qt Company Ltd.
+// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
+
+#ifndef QSPAN_P_H
+#define QSPAN_P_H
+
+//
+//  W A R N I N G
+//  -------------
+//
+// This file is not part of the Qt API.  It exists purely as an
+// implementation detail.  This header file may change from version to
+// version without notice, or even be removed.
+//
+// We mean it.
+//
+
+#include <QtCore/qcompilerdetection.h>
+#include <QtCore/qtypes.h>
+
+#include <array>
+#include <cstddef>
+#include <cassert>
+#include <QtCore/q20iterator.h>
+#include <QtCore/q20memory.h>
+#ifdef __cpp_lib_span
+#include <span>
+#endif
+#include <QtCore/q20type_traits.h>
+
+QT_BEGIN_NAMESPACE
+
+// like std::dynamic_extent
+namespace q20 {
+    inline constexpr std::size_t dynamic_extent = -1;
+} // namespace q20
+
+template <typename T, std::size_t E = q20::dynamic_extent> class QSpan;
+
+namespace QSpanPrivate {
+
+template <typename T, std::size_t E> class QSpanBase;
+
+template <typename T>
+struct is_qspan_helper : std::false_type {};
+template <typename T, std::size_t E>
+struct is_qspan_helper<QSpan<T, E>> : std::true_type {};
+template <typename T, std::size_t E>
+struct is_qspan_helper<QSpanBase<T, E>> : std::true_type {};
+template <typename T>
+using is_qspan = is_qspan_helper<q20::remove_cvref_t<T>>;
+
+template <typename T>
+struct is_std_array_helper : std::false_type {};
+template <typename T, std::size_t N>
+struct is_std_array_helper<std::array<T, N>> : std::true_type {};
+template <typename T>
+using is_std_array = is_std_array_helper<q20::remove_cvref_t<T>>;
+
+template <typename From, typename To>
+using is_qualification_conversion =
+    std::is_convertible<From(*)[], To(*)[]>; // https://eel.is/c++draft/span.cons#note-1
+template <typename From, typename To>
+constexpr inline bool is_qualification_conversion_v = is_qualification_conversion<From, To>::value;
+
+// Replacements for std::ranges::XXX(), but only bringing in ADL XXX()s,
+// not doing the extra work C++20 requires
+template <typename Range>
+decltype(auto) adl_begin(Range &&r) { using std::begin; return begin(r); }
+template <typename Range>
+decltype(auto) adl_data(Range &&r)  { using std::data; return data(r); }
+template <typename Range>
+decltype(auto) adl_size(Range &&r)  { using std::size; return size(r); }
+
+// Replacement for std::ranges::iterator_t (which depends on C++20 std::ranges::begin)
+// This one uses adl_begin() instead.
+template <typename Range>
+using iterator_t = decltype(QSpanPrivate::adl_begin(std::declval<Range&>()));
+template <typename Range>
+using range_reference_t = q20::iter_reference_t<QSpanPrivate::iterator_t<Range>>;
+
+template <typename T>
+class QSpanCommon {
+protected:
+    template <typename Iterator>
+    using is_compatible_iterator = std::conjunction<
+            std::is_base_of<
+                std::random_access_iterator_tag,
+                typename std::iterator_traits<Iterator>::iterator_category
+            >,
+            is_qualification_conversion<
+                std::remove_reference_t<q20::iter_reference_t<Iterator>>,
+                T
+            >
+        >;
+    template <typename Iterator, typename End>
+    using is_compatible_iterator_and_sentinel = std::conjunction<
+            is_compatible_iterator<Iterator>,
+            std::negation<std::is_convertible<End, std::size_t>>
+        >;
+    template <typename Range, typename = void> // wrap use of SFINAE-unfriendly iterator_t:
+    struct is_compatible_range_helper : std::false_type {};
+    template <typename Range>
+    struct is_compatible_range_helper<Range, std::void_t<QSpanPrivate::iterator_t<Range>>>
+        : is_compatible_iterator<QSpanPrivate::iterator_t<Range>> {};
+    template <typename Range>
+    using is_compatible_range = std::conjunction<
+            // ### this needs more work, esp. extension to C++20 contiguous iterators
+            std::negation<is_qspan<Range>>,
+            std::negation<is_std_array<Range>>,
+            std::negation<std::is_array<q20::remove_cvref_t<Range>>>,
+            is_compatible_range_helper<Range>
+        >;
+
+    // constraints
+    template <typename Iterator>
+    using if_compatible_iterator = std::enable_if_t<
+                is_compatible_iterator<Iterator>::value
+            , bool>;
+    template <typename Iterator, typename End>
+    using if_compatible_iterator_and_sentinel = std::enable_if_t<
+                is_compatible_iterator_and_sentinel<Iterator, End>::value
+            , bool>;
+    template <typename Range>
+    using if_compatible_range = std::enable_if_t<is_compatible_range<Range>::value, bool>;
+}; // class QSpanCommon
+
+template <typename T, std::size_t E>
+class QSpanBase : protected QSpanCommon<T>
+{
+    static_assert(E < size_t{(std::numeric_limits<qsizetype>::max)()},
+                  "QSpan only supports extents that fit into the signed size type (qsizetype).");
+
+    struct Enabled_t { explicit Enabled_t() = default; };
+    static inline constexpr Enabled_t Enable{};
+
+    template <typename S, std::size_t N>
+    using if_compatible_array = std::enable_if_t<
+            N == E && is_qualification_conversion_v<S, T>
+        , bool>;
+
+    template <typename S>
+    using if_qualification_conversion = std::enable_if_t<
+            is_qualification_conversion_v<S, T>
+        , bool>;
+protected:
+    using Base = QSpanCommon<T>;
+
+    // data members:
+    T *m_data;
+    static constexpr qsizetype m_size = qsizetype(E);
+
+    // types and constants:
+
+    static constexpr size_t extent = E;
+
+    // constructors (need to be public d/t the way ctor inheriting works):
+public:
+    template <std::size_t E2 = E, std::enable_if_t<E2 == 0, bool> = true>
+    Q_IMPLICIT constexpr QSpanBase() noexcept : m_data{nullptr} {}
+
+    template <typename It, typename Base::template if_compatible_iterator<It> = true>
+    explicit constexpr QSpanBase(It first, qsizetype count)
+        : m_data{q20::to_address(first)}
+    {
+        Q_ASSERT(count == m_size);
+    }
+
+    template <typename It, typename End, typename Base::template if_compatible_iterator_and_sentinel<It, End> = true>
+    explicit constexpr QSpanBase(It first, End last)
+        : QSpanBase(first, last - first) {}
+
+    template <size_t N, std::enable_if_t<N == E, bool> = true>
+    Q_IMPLICIT constexpr QSpanBase(q20::type_identity_t<T> (&arr)[N]) noexcept
+        : QSpanBase(arr, N) {}
+
+    template <typename S, size_t N, if_compatible_array<S, N> = true>
+    Q_IMPLICIT constexpr QSpanBase(std::array<S, N> &arr) noexcept
+        : QSpanBase(arr.data(), N) {}
+
+    template <typename S, size_t N, if_compatible_array<S, N> = true>
+    Q_IMPLICIT constexpr QSpanBase(const std::array<S, N> &arr) noexcept
+        : QSpanBase(arr.data(), N) {}
+
+    template <typename Range, typename Base::template if_compatible_range<Range> = true>
+    Q_IMPLICIT constexpr QSpanBase(Range &&r)
+        : QSpanBase(QSpanPrivate::adl_data(r),  // no forward<>() here (std doesn't have it, either)
+                    qsizetype(QSpanPrivate::adl_size(r))) // ditto, no forward<>()
+    {}
+
+    template <typename S, if_qualification_conversion<S> = true>
+    Q_IMPLICIT constexpr QSpanBase(QSpan<S, E> other) noexcept
+        : QSpanBase(other.data(), other.size())
+    {}
+
+    template <typename S, if_qualification_conversion<S> = true>
+    Q_IMPLICIT constexpr QSpanBase(QSpan<S> other)
+        : QSpanBase(other.data(), other.size())
+    {}
+
+}; // class QSpanBase (fixed extent)
+
+template <typename T>
+class QSpanBase<T, q20::dynamic_extent> : protected QSpanCommon<T>
+{
+    template <typename S>
+    using if_qualification_conversion = std::enable_if_t<
+            is_qualification_conversion_v<S, T>
+        , bool>;
+protected:
+    using Base = QSpanCommon<T>;
+
+    // data members:
+    T *m_data;
+    qsizetype m_size;
+
+    // constructors (need to be public d/t the way ctor inheriting works):
+public:
+    Q_IMPLICIT constexpr QSpanBase() noexcept : m_data{nullptr}, m_size{0} {}
+
+    template <typename It, typename Base::template if_compatible_iterator<It> = true>
+    Q_IMPLICIT constexpr QSpanBase(It first, qsizetype count)
+        : m_data{q20::to_address(first)}, m_size{count} {}
+
+    template <typename It, typename End, typename Base::template if_compatible_iterator_and_sentinel<It, End> = true>
+    Q_IMPLICIT constexpr QSpanBase(It first, End last)
+        : QSpanBase(first, last - first) {}
+
+    template <size_t N>
+    Q_IMPLICIT constexpr QSpanBase(q20::type_identity_t<T> (&arr)[N]) noexcept
+        : QSpanBase(arr, N) {}
+
+    template <typename S, size_t N, if_qualification_conversion<S> = true>
+    Q_IMPLICIT constexpr QSpanBase(std::array<S, N> &arr) noexcept
+        : QSpanBase(arr.data(), N) {}
+
+    template <typename S, size_t N, if_qualification_conversion<S> = true>
+    Q_IMPLICIT constexpr QSpanBase(const std::array<S, N> &arr) noexcept
+        : QSpanBase(arr.data(), N) {}
+
+    template <typename Range, typename Base::template if_compatible_range<Range> = true>
+    Q_IMPLICIT constexpr QSpanBase(Range &&r)
+        : QSpanBase(QSpanPrivate::adl_data(r),  // no forward<>() here (std doesn't have it, either)
+                    qsizetype(QSpanPrivate::adl_size(r))) // ditto, no forward<>()
+    {}
+
+    template <typename S, size_t N, if_qualification_conversion<S> = true>
+    Q_IMPLICIT constexpr QSpanBase(QSpan<S, N> other) noexcept
+        : QSpanBase(other.data(), other.size())
+    {}
+}; // class QSpanBase (dynamic extent)
+
+} // namespace QSpanPrivate
+
+template <typename T, std::size_t E>
+class QSpan : private QSpanPrivate::QSpanBase<T, E>
+{
+    using Base = QSpanPrivate::QSpanBase<T, E>;
+    Q_ALWAYS_INLINE constexpr void verify([[maybe_unused]] qsizetype pos = 0,
+                                          [[maybe_unused]] qsizetype n = 1) const
+    {
+        Q_ASSERT(pos >= 0);
+        Q_ASSERT(pos <= size());
+        Q_ASSERT(n >= 0);
+        Q_ASSERT(n <= size() - pos);
+    }
+
+    template <std::size_t N>
+    static constexpr bool subspan_always_succeeds_v = N <= E && E != q20::dynamic_extent;
+public:
+    // constants and types
+    using element_type = T;
+    using value_type = std::remove_cv_t<element_type>;
+    using size_type = qsizetype;               // difference to std::span
+    using difference_type = qptrdiff;          // difference to std::span
+    using pointer = element_type*;
+    using const_pointer = const element_type*;
+    using reference = element_type&;
+    using const_reference = const element_type&;
+    using iterator = pointer;                  // implementation-defined choice
+    using reverse_iterator = std::reverse_iterator<iterator>;
+    static constexpr size_type extent = E;
+
+    // [span.cons], constructors, copy, and assignment
+    using Base::Base;
+
+    // [span.obs]
+    [[nodiscard]] constexpr size_type size() const noexcept { return this->m_size; }
+    [[nodiscard]] constexpr size_type size_bytes() const noexcept { return size() * sizeof(T); }
+    [[nodiscard]] constexpr bool empty() const noexcept { return size() == 0; }
+
+    // [span.elem]
+    [[nodiscard]] constexpr reference operator[](size_type idx) const
+    { verify(idx); return data()[idx]; }
+    [[nodiscard]] constexpr reference front() const { verify(); return *data(); }
+    [[nodiscard]] constexpr reference back() const  { verify(); return data()[size() - 1]; }
+    [[nodiscard]] constexpr pointer data() const noexcept { return this->m_data; }
+
+    // [span.iterators]
+    [[nodiscard]] constexpr auto begin() const noexcept { return data(); }
+    [[nodiscard]] constexpr auto end() const noexcept { return data() + size(); }
+    [[nodiscard]] constexpr auto rbegin() const noexcept { return reverse_iterator{end()}; }
+    [[nodiscard]] constexpr auto rend() const noexcept { return reverse_iterator{begin()}; }
+
+    // [span.sub]
+    template <std::size_t Count>
+    [[nodiscard]] constexpr QSpan<T, Count> first() const
+        noexcept(subspan_always_succeeds_v<Count>)
+    {
+        static_assert(Count <= E,
+                      "Count cannot be larger than the span's extent.");
+        verify(0, Count);
+        return QSpan<T, Count>{data(), Count};
+    }
+
+    template <std::size_t Count>
+    [[nodiscard]] constexpr QSpan<T, Count> last() const
+        noexcept(subspan_always_succeeds_v<Count>)
+    {
+        static_assert(Count <= E,
+                      "Count cannot be larger than the span's extent.");
+        verify(0, Count);
+        return QSpan<T, Count>{data() + (size() - Count), Count};
+    }
+
+    template <std::size_t Offset>
+    [[nodiscard]] constexpr auto subspan() const
+        noexcept(subspan_always_succeeds_v<Offset>)
+    {
+        static_assert(Offset <= E,
+                      "Offset cannot be larger than the span's extent.");
+        verify(Offset, 0);
+        if constexpr (E == q20::dynamic_extent)
+            return QSpan<T>{data() + Offset, qsizetype(size() - Offset)};
+        else
+            return QSpan<T, E - Offset>{data() + Offset, qsizetype(E - Offset)};
+    }
+
+    template <std::size_t Offset, std::size_t Count>
+    [[nodiscard]] constexpr auto subspan() const
+        noexcept(subspan_always_succeeds_v<Offset + Count>)
+    { return subspan<Offset>().template first<Count>(); }
+
+    [[nodiscard]] constexpr QSpan<T> first(size_type n) const { verify(0, n); return {data(), n}; }
+    [[nodiscard]] constexpr QSpan<T> last(size_type n)  const { verify(0, n); return {data() + (size() - n), n}; }
+    [[nodiscard]] constexpr QSpan<T> subspan(size_type pos) const { verify(pos, 0); return {data() + pos, size() - pos}; }
+    [[nodiscard]] constexpr QSpan<T> subspan(size_type pos, size_type n) const { return subspan(pos).first(n); }
+
+    // Qt-compatibility API:
+    [[nodiscard]] bool isEmpty() const noexcept { return empty(); }
+    // nullary first()/last() clash with first<>() and last<>(), so they're not provided for QSpan
+    [[nodiscard]] constexpr QSpan<T> sliced(size_type pos) const { return subspan(pos); }
+    [[nodiscard]] constexpr QSpan<T> sliced(size_type pos, size_type n) const { return subspan(pos, n); }
+
+}; // class QSpan
+
+// [span.deduct]
+template <class It, class EndOrSize>
+QSpan(It, EndOrSize) -> QSpan<std::remove_reference_t<q20::iter_reference_t<It>>>;
+template <class T, std::size_t N>
+QSpan(T (&)[N]) -> QSpan<T, N>;
+template <class T, std::size_t N>
+QSpan(std::array<T, N> &) -> QSpan<T, N>;
+template <class T, std::size_t N>
+QSpan(const std::array<T, N> &) -> QSpan<const T, N>;
+template <class R>
+QSpan(R&&) -> QSpan<std::remove_reference_t<QSpanPrivate::range_reference_t<R>>>;
+
+QT_END_NAMESPACE
+
+#endif // QSPAN_P_H
diff --git a/src/corelib/tools/qtaggedpointer.h b/src/corelib/tools/qtaggedpointer.h
index bc43f765..6c467d59 100644
--- a/src/corelib/tools/qtaggedpointer.h
+++ b/src/corelib/tools/qtaggedpointer.h
@@ -43,10 +43,10 @@ public:
     static constexpr quintptr tagMask() { return QtPrivate::TagInfo<T>::alignment - 1; }
     static constexpr quintptr pointerMask() { return ~tagMask(); }
 
-    constexpr QTaggedPointer() noexcept : d(0) {}
-    constexpr QTaggedPointer(std::nullptr_t) noexcept : QTaggedPointer() {}
+    Q_NODISCARD_CTOR constexpr QTaggedPointer() noexcept : d(0) {}
+    Q_NODISCARD_CTOR constexpr QTaggedPointer(std::nullptr_t) noexcept : QTaggedPointer() {}
 
-    explicit QTaggedPointer(T *pointer, Tag tag = Tag()) noexcept
+    Q_NODISCARD_CTOR explicit QTaggedPointer(T *pointer, Tag tag = Tag()) noexcept
         : d(quintptr(pointer) | quintptr(tag))
     {
         static_assert(sizeof(Type*) == sizeof(QTaggedPointer));
diff --git a/src/corelib/tools/qtimeline.cpp b/src/corelib/tools/qtimeline.cpp
index 8b9d5428..5512da86 100644
--- a/src/corelib/tools/qtimeline.cpp
+++ b/src/corelib/tools/qtimeline.cpp
@@ -292,7 +292,7 @@ QTimeLine::State QTimeLine::state() const
     \property QTimeLine::loopCount
     \brief the number of times the timeline should loop before it's finished.
 
-    A loop count of of 0 means that the timeline will loop forever.
+    A loop count of 0 means that the timeline will loop forever.
 
     By default, this property contains a value of 1.
 */
diff --git a/src/corelib/tools/qtools_p.h b/src/corelib/tools/qtools_p.h
index b2d63a66..93432a95 100644
--- a/src/corelib/tools/qtools_p.h
+++ b/src/corelib/tools/qtools_p.h
@@ -16,17 +16,20 @@
 //
 
 #include "QtCore/private/qglobal_p.h"
+
+#include <chrono>
 #include <limits.h>
+#include <time.h>
 
 QT_BEGIN_NAMESPACE
 
 namespace QtMiscUtils {
-constexpr inline char toHexUpper(uint value) noexcept
+constexpr inline char toHexUpper(char32_t value) noexcept
 {
     return "0123456789ABCDEF"[value & 0xF];
 }
 
-constexpr inline char toHexLower(uint value) noexcept
+constexpr inline char toHexLower(char32_t value) noexcept
 {
     return "0123456789abcdef"[value & 0xF];
 }
@@ -34,11 +37,11 @@ constexpr inline char toHexLower(uint value) noexcept
 [[nodiscard]] constexpr inline bool isHexDigit(char32_t c) noexcept
 {
     return (c >= '0' && c <= '9')
-           || (c >= 'A' && c <= 'F')
-           || (c >= 'a' && c <= 'f');
+        || (c >= 'A' && c <= 'F')
+        || (c >= 'a' && c <= 'f');
 }
 
-constexpr inline int fromHex(uint c) noexcept
+constexpr inline int fromHex(char32_t c) noexcept
 {
     return ((c >= '0') && (c <= '9')) ? int(c - '0') :
            ((c >= 'A') && (c <= 'F')) ? int(c - 'A' + 10) :
@@ -46,7 +49,7 @@ constexpr inline int fromHex(uint c) noexcept
            /* otherwise */              -1;
 }
 
-constexpr inline char toOct(uint value) noexcept
+constexpr inline char toOct(char32_t value) noexcept
 {
     return char('0' + (value & 0x7));
 }
@@ -56,7 +59,7 @@ constexpr inline char toOct(uint value) noexcept
     return c >= '0' && c <= '7';
 }
 
-constexpr inline int fromOct(uint c) noexcept
+constexpr inline int fromOct(char32_t c) noexcept
 {
     return isOctalDigit(c) ? int(c - '0') : -1;
 }
@@ -109,7 +112,8 @@ constexpr inline int qt_lencmp(qsizetype lhs, qsizetype rhs) noexcept
            lhs >  rhs ? 1 :
            /* else */  -1 ;
 }
-}
+
+} // namespace QtMiscUtils
 
 // We typically need an extra bit for qNextPowerOfTwo when determining the next allocation size.
 constexpr qsizetype MaxAllocSize = (std::numeric_limits<qsizetype>::max)();
diff --git a/src/corelib/tools/qvarlengtharray.h b/src/corelib/tools/qvarlengtharray.h
index 02e74f3d..1759fba4 100644
--- a/src/corelib/tools/qvarlengtharray.h
+++ b/src/corelib/tools/qvarlengtharray.h
@@ -243,6 +243,10 @@ protected:
         }
     }
 
+    void assign_impl(qsizetype prealloc, void *array, qsizetype n, const T &t);
+    template <typename Iterator>
+    void assign_impl(qsizetype prealloc, void *array, Iterator first, Iterator last);
+
     bool isValidIterator(const const_iterator &i) const
     {
         const std::less<const T *> less = {};
@@ -253,8 +257,13 @@ protected:
 // Prealloc = 256 by default, specified in qcontainerfwd.h
 template<class T, qsizetype Prealloc>
 class QVarLengthArray
-    : public QVLABase<T>, // ### Qt 7: swap base class order
+#if QT_VERSION >= QT_VERSION_CHECK(7,0,0) || defined(QT_BOOTSTRAPPED)
+    : public QVLAStorage<sizeof(T), alignof(T), Prealloc>,
+      public QVLABase<T>
+#else
+    : public QVLABase<T>,
       public QVLAStorage<sizeof(T), alignof(T), Prealloc>
+#endif
 {
     template <class S, qsizetype Prealloc2>
     friend class QVarLengthArray;
@@ -266,6 +275,8 @@ class QVarLengthArray
 
     template <typename U>
     using if_copyable = std::enable_if_t<std::is_copy_constructible_v<U>, bool>;
+    template <typename InputIterator>
+    using if_input_iterator = QtPrivate::IfIsInputIterator<InputIterator>;
 public:
     using size_type = typename Base::size_type;
     using value_type = typename Base::value_type;
@@ -327,7 +338,7 @@ public:
     {
     }
 
-    template <typename InputIterator, QtPrivate::IfIsInputIterator<InputIterator> = true>
+    template <typename InputIterator, if_input_iterator<InputIterator> = true>
     inline QVarLengthArray(InputIterator first, InputIterator last)
         : QVarLengthArray()
     {
@@ -374,9 +385,7 @@ public:
 
     QVarLengthArray<T, Prealloc> &operator=(std::initializer_list<T> list)
     {
-        resize(qsizetype(list.size()));
-        std::copy(list.begin(), list.end(),
-                  QT_MAKE_CHECKED_ARRAY_ITERATOR(begin(), size()));
+        assign(list);
         return *this;
     }
 
@@ -491,6 +500,15 @@ public:
     void insert(qsizetype i, T &&t);
     void insert(qsizetype i, const T &t);
     void insert(qsizetype i, qsizetype n, const T &t);
+
+    QVarLengthArray &assign(qsizetype n, const T &t)
+    { Base::assign_impl(Prealloc, this->array, n, t); return *this; }
+    template <typename InputIterator, if_input_iterator<InputIterator> = true>
+    QVarLengthArray &assign(InputIterator first, InputIterator last)
+    { Base::assign_impl(Prealloc, this->array, first, last); return *this; }
+    QVarLengthArray &assign(std::initializer_list<T> list)
+    { assign(list.begin(), list.end()); return *this; }
+
 #ifdef Q_QDOC
     void replace(qsizetype i, const T &t);
     void remove(qsizetype i, qsizetype n = 1);
@@ -741,6 +759,61 @@ Q_OUTOFLINE_TEMPLATE void QVLABase<T>::append_impl(qsizetype prealloc, void *arr
     this->s = asize;
 }
 
+template <class T>
+Q_OUTOFLINE_TEMPLATE void QVLABase<T>::assign_impl(qsizetype prealloc, void *array, qsizetype n, const T &t)
+{
+    Q_ASSERT(n >= 0);
+    if (n > capacity()) {
+        reallocate_impl(prealloc, array, 0, capacity()); // clear
+        resize_impl(prealloc, array, n, t);
+    } else {
+        auto mid = (std::min)(n, size());
+        std::fill(data(), data() + mid, t);
+        std::uninitialized_fill(data() + mid, data() + n, t);
+        s = n;
+        erase(data() + n, data() + size());
+    }
+}
+
+template <class T>
+template <typename Iterator>
+Q_OUTOFLINE_TEMPLATE void QVLABase<T>::assign_impl(qsizetype prealloc, void *array, Iterator first, Iterator last)
+{
+    // This function only provides the basic exception guarantee.
+    constexpr bool IsFwdIt =
+            std::is_convertible_v<typename std::iterator_traits<Iterator>::iterator_category,
+                                  std::forward_iterator_tag>;
+    if constexpr (IsFwdIt) {
+        const qsizetype n = std::distance(first, last);
+        if (n > capacity())
+            reallocate_impl(prealloc, array, 0, n); // clear & reserve n
+    }
+
+    auto dst = begin();
+    const auto dend = end();
+    while (true) {
+        if (first == last) {          // ran out of elements to assign
+            std::destroy(dst, dend);
+            break;
+        }
+        if (dst == dend) {            // ran out of existing elements to overwrite
+            if constexpr (IsFwdIt) {
+                dst = std::uninitialized_copy(first, last, dst);
+                break;
+            } else {
+                do {
+                    emplace_back_impl(prealloc, array, *first);
+                } while (++first != last);
+                return; // size() is already correct (and dst invalidated)!
+            }
+        }
+        *dst = *first;                // overwrite existing element
+        ++dst;
+        ++first;
+    }
+    this->s = dst - begin();
+}
+
 template <class T>
 Q_OUTOFLINE_TEMPLATE void QVLABase<T>::reallocate_impl(qsizetype prealloc, void *array, qsizetype asize, qsizetype aalloc)
 {
diff --git a/src/corelib/tools/qvarlengtharray.qdoc b/src/corelib/tools/qvarlengtharray.qdoc
index 4f41304c..70dc4168 100644
--- a/src/corelib/tools/qvarlengtharray.qdoc
+++ b/src/corelib/tools/qvarlengtharray.qdoc
@@ -103,11 +103,15 @@
     lists.
 */
 
-/*! \fn template<class T, qsizetype Prealloc> template<typename InputIterator> QVarLengthArray<T, Prealloc>::QVarLengthArray(InputIterator first, InputIterator last)
+/*! \fn template<class T, qsizetype Prealloc> template<typename InputIterator, if_input_iterator<InputIterator>> QVarLengthArray<T, Prealloc>::QVarLengthArray(InputIterator first, InputIterator last)
     \since 5.14
 
     Constructs an array with the contents in the iterator range [\a first, \a last).
 
+    This constructor only participates in overload resolution if
+    \c InputIterator meets the requirements of an
+    \l {https://en.cppreference.com/w/cpp/named_req/InputIterator} {LegacyInputIterator}.
+
     The value type of \c InputIterator must be convertible to \c T.
 */
 
@@ -992,3 +996,40 @@
 
     \sa erase()
 */
+
+/*! \fn template <class T, qsizetype Prealloc> QVarLengthArray<T, Prealloc>::assign(qsizetype n, const T &t)
+    \since 6.6
+
+    Replaces the contents of this container with \a n copies of \a t.
+
+    The size of this container will be equal to \a n. This function will only
+    allocate memory if \a n exceeds the capacity of the container.
+*/
+
+/*! \fn template <class T, qsizetype Prealloc> template <typename InputIterator, if_input_iterator<InputIterator>> QVarLengthArray<T, Prealloc>::assign(InputIterator first, InputIterator last)
+    \since 6.6
+
+    Replaces the contents of this container with a copy of the elements in the
+    iterator range [\a first, \a last).
+
+    The size of this container will be equal to the number of elements in the
+    range [\a first, \a last). This function will only allocate memory if the
+    number of elements in the range exceeds the capacity of the container.
+
+    This function overload only participates in overload resolution if
+    \c InputIterator meets the requirements of an
+    \l {https://en.cppreference.com/w/cpp/named_req/InputIterator} {LegacyInputIterator}.
+
+    The behavior is undefined if either argument is an iterator into *this.
+*/
+
+/*! \fn template <class T, qsizetype Prealloc> QVarLengthArray<T, Prealloc>::assign(std::initializer_list<T> list)
+    \since 6.6
+
+    Replaces the contents of this container with a copy of the elements of \a list.
+
+    The size of this container will be equal to the number of elements in \a list.
+
+    This function only allocates memory if the number of elements in \a list
+    exceeds the capacity of the container.
+*/
diff --git a/src/dbus/CMakeLists.txt b/src/dbus/CMakeLists.txt
index 8022f265..f489eac2 100644
--- a/src/dbus/CMakeLists.txt
+++ b/src/dbus/CMakeLists.txt
@@ -52,8 +52,9 @@ qt_internal_add_module(DBus
     GENERATE_CPP_EXPORTS
 )
 
+# This file is included by qdbusargument.cpp
 set_source_files_properties(qdbusmarshaller.cpp
-    PROPERTIES HEADER_FILE_ONLY ON)  # special case: This file is included by qdbusargument.cpp
+    PROPERTIES HEADER_FILE_ONLY ON)
 
 ## Scopes:
 #####################################################################
diff --git a/src/dbus/doc/snippets/code/src_qdbus_qdbusabstractinterface.cpp b/src/dbus/doc/snippets/code/src_qdbus_qdbusabstractinterface.cpp
index 5348d18b..85945ac2 100644
--- a/src/dbus/doc/snippets/code/src_qdbus_qdbusabstractinterface.cpp
+++ b/src/dbus/doc/snippets/code/src_qdbus_qdbusabstractinterface.cpp
@@ -52,7 +52,7 @@ QDBusPendingCall pcall = interface->asyncCall("Process"_L1, value);
 
 QDBusPendingCallWatcher *watcher = new QDBusPendingCallWatcher(pcall);
 
-QObject::connect(watcher, SIGNAL(finished(QDBusPendingCallWatcher*)),
-                this, SLOT(callFinishedSlot(QDBusPendingCallWatcher*)));
+QObject::connect(watcher, &QDBusPendingCallWatcher::finished, this,
+                 &Abstract_DBus_Interface::callFinishedSlot);
 //! [1]
 }
diff --git a/src/dbus/doc/snippets/code/src_qdbus_qdbuscontext.cpp b/src/dbus/doc/snippets/code/src_qdbus_qdbuscontext.cpp
index 9e4e26cb..75b43945 100644
--- a/src/dbus/doc/snippets/code/src_qdbus_qdbuscontext.cpp
+++ b/src/dbus/doc/snippets/code/src_qdbus_qdbuscontext.cpp
@@ -37,7 +37,7 @@ QString MyObject::methodWithDelayedReply()
     conn = connection();
     msg = message();
     setDelayedReply(true);
-    QMetaObject::invokeMethod(this, "process", Qt::QueuedConnection);
+    QMetaObject::invokeMethod(this, &MyObject::process, Qt::QueuedConnection);
     return QString();
 }
 //! [0]
diff --git a/src/dbus/doc/snippets/code/src_qdbus_qdbuspendingcall.cpp b/src/dbus/doc/snippets/code/src_qdbus_qdbuspendingcall.cpp
index c44337ad..67b019a6 100644
--- a/src/dbus/doc/snippets/code/src_qdbus_qdbuspendingcall.cpp
+++ b/src/dbus/doc/snippets/code/src_qdbus_qdbuspendingcall.cpp
@@ -33,8 +33,8 @@ void DBus_PendingCall_Interface::callInterfaceMain()
     QDBusPendingCall async = iface->asyncCall("RemoteMethod", value1, value2);
     QDBusPendingCallWatcher *watcher = new QDBusPendingCallWatcher(async, this);
 
-    QObject::connect(watcher, SIGNAL(finished(QDBusPendingCallWatcher*)),
-                     this, SLOT(callFinishedSlot(QDBusPendingCallWatcher*)));
+    QObject::connect(watcher, &QDBusPendingCallWatcher::finished, this,
+                     &DBus_PendingCall_Interface::callFinishedSlot);
 //! [0]
 
 }
diff --git a/src/dbus/doc/src/qtdbus-overview.qdoc b/src/dbus/doc/src/qtdbus-overview.qdoc
index 1d570b12..6342e674 100644
--- a/src/dbus/doc/src/qtdbus-overview.qdoc
+++ b/src/dbus/doc/src/qtdbus-overview.qdoc
@@ -5,6 +5,7 @@
     \page qtdbus-overview.html
     \title Qt D-Bus Overview
     \brief Provides insight into the Qt Qt D-Bus module.
+    \ingroup explanations-networkingandconnectivity
 
     D-Bus is an Inter-Process Communication (IPC) and Remote Procedure
     Calling (RPC) mechanism originally developed for Linux to replace
diff --git a/src/dbus/qdbus_symbols.cpp b/src/dbus/qdbus_symbols.cpp
index 9b1ccfd7..676bc3d4 100644
--- a/src/dbus/qdbus_symbols.cpp
+++ b/src/dbus/qdbus_symbols.cpp
@@ -3,6 +3,7 @@
 // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
 
 #include <QtCore/qglobal.h>
+#include <QtCore/qlatin1stringview.h>
 #if QT_CONFIG(library)
 #include <QtCore/qlibrary.h>
 #include <QtCore/private/qlocking_p.h>
diff --git a/src/dbus/qdbusabstractadaptor.cpp b/src/dbus/qdbusabstractadaptor.cpp
index 04bd7c9c..9da2fd38 100644
--- a/src/dbus/qdbusabstractadaptor.cpp
+++ b/src/dbus/qdbusabstractadaptor.cpp
@@ -37,11 +37,9 @@ QDBusAdaptorConnector *qDBusFindAdaptorConnector(QObject *obj)
 {
     if (!obj)
         return nullptr;
-    const QObjectList &children = obj->children();
-    QObjectList::ConstIterator it = children.constBegin();
-    QObjectList::ConstIterator end = children.constEnd();
-    for ( ; it != end; ++it) {
-        QDBusAdaptorConnector *connector = qobject_cast<QDBusAdaptorConnector *>(*it);
+
+    for (QObject *child : std::as_const(obj->children())) {
+        QDBusAdaptorConnector *connector = qobject_cast<QDBusAdaptorConnector *>(child);
         if (connector) {
             connector->polish();
             return connector;
@@ -113,7 +111,7 @@ QDBusAbstractAdaptor::QDBusAbstractAdaptor(QObject* obj)
     QDBusAdaptorConnector *connector = qDBusCreateAdaptorConnector(obj);
 
     connector->waitingForPolish = true;
-    QMetaObject::invokeMethod(connector, "polish", Qt::QueuedConnection);
+    QMetaObject::invokeMethod(connector, &QDBusAdaptorConnector::polish, Qt::QueuedConnection);
 }
 
 /*!
@@ -227,11 +225,8 @@ void QDBusAdaptorConnector::polish()
         return;                 // avoid working multiple times if multiple adaptors were added
 
     waitingForPolish = false;
-    const QObjectList &objs = parent()->children();
-    QObjectList::ConstIterator it = objs.constBegin();
-    QObjectList::ConstIterator end = objs.constEnd();
-    for ( ; it != end; ++it) {
-        QDBusAbstractAdaptor *adaptor = qobject_cast<QDBusAbstractAdaptor *>(*it);
+    for (QObject *child : std::as_const(parent()->children())) {
+        QDBusAbstractAdaptor *adaptor = qobject_cast<QDBusAbstractAdaptor *>(child);
         if (adaptor)
             addAdaptor(adaptor);
     }
diff --git a/src/dbus/qdbusargument.h b/src/dbus/qdbusargument.h
index 475c47f4..f1ecb91f 100644
--- a/src/dbus/qdbusargument.h
+++ b/src/dbus/qdbusargument.h
@@ -222,10 +222,8 @@ inline const QDBusArgument &operator>>(const QDBusArgument &arg, Container<T> &l
 inline QDBusArgument &operator<<(QDBusArgument &arg, const QVariantList &list)
 {
     arg.beginArray(QMetaType::fromType<QDBusVariant>());
-    QVariantList::ConstIterator it = list.constBegin();
-    QVariantList::ConstIterator end = list.constEnd();
-    for ( ; it != end; ++it)
-        arg << QDBusVariant(*it);
+    for (const QVariant &value : list)
+        arg << QDBusVariant(value);
     arg.endArray();
     return arg;
 }
@@ -284,11 +282,9 @@ inline const QDBusArgument &operator>>(const QDBusArgument &arg, Container<Key,
 inline QDBusArgument &operator<<(QDBusArgument &arg, const QVariantMap &map)
 {
     arg.beginMap(QMetaType::fromType<QString>(), QMetaType::fromType<QDBusVariant>());
-    QVariantMap::ConstIterator it = map.constBegin();
-    QVariantMap::ConstIterator end = map.constEnd();
-    for ( ; it != end; ++it) {
+    for (const auto &[key, value] : map.asKeyValueRange()) {
         arg.beginMapEntry();
-        arg << it.key() << QDBusVariant(it.value());
+        arg << key << QDBusVariant(value);
         arg.endMapEntry();
     }
     arg.endMap();
@@ -298,11 +294,9 @@ inline QDBusArgument &operator<<(QDBusArgument &arg, const QVariantMap &map)
 inline QDBusArgument &operator<<(QDBusArgument &arg, const QVariantHash &map)
 {
     arg.beginMap(QMetaType::fromType<QString>(), QMetaType::fromType<QDBusVariant>());
-    QVariantHash::ConstIterator it = map.constBegin();
-    QVariantHash::ConstIterator end = map.constEnd();
-    for ( ; it != end; ++it) {
+    for (const auto &[key, value] : map.asKeyValueRange()) {
         arg.beginMapEntry();
-        arg << it.key() << QDBusVariant(it.value());
+        arg << key << QDBusVariant(value);
         arg.endMapEntry();
     }
     arg.endMap();
diff --git a/src/dbus/qdbusconnection.cpp b/src/dbus/qdbusconnection.cpp
index af6604bf..baab2b8c 100644
--- a/src/dbus/qdbusconnection.cpp
+++ b/src/dbus/qdbusconnection.cpp
@@ -22,6 +22,7 @@
 #include "qdbuspendingcall_p.h"
 
 #include "qdbusthreaddebug_p.h"
+#include "qdbusmetatype_p.h"
 
 #include <algorithm>
 
@@ -82,6 +83,13 @@ void QDBusConnectionManager::removeConnection(const QString &name)
 
 QDBusConnectionManager::QDBusConnectionManager()
 {
+    // Ensure that the custom metatype registry is created before the instance
+    // of this class. This will ensure that the registry is not destroyed before
+    // the connection manager at application exit (see also QTBUG-58732). This
+    // works with compilers that use mechanism similar to atexit() to call
+    // destructurs for global statics.
+    QDBusMetaTypeId::init();
+
     connect(this, &QDBusConnectionManager::connectionRequested,
             this, &QDBusConnectionManager::executeConnectionRequest, Qt::BlockingQueuedConnection);
     connect(this, &QDBusConnectionManager::serverRequested,
@@ -124,9 +132,7 @@ void QDBusConnectionManager::run()
 
     // cleanup:
     const auto locker = qt_scoped_lock(mutex);
-    for (QHash<QString, QDBusConnectionPrivate *>::const_iterator it = connectionHash.constBegin();
-         it != connectionHash.constEnd(); ++it) {
-        QDBusConnectionPrivate *d = it.value();
+    for (QDBusConnectionPrivate *d : std::as_const(connectionHash)) {
         if (!d->ref.deref()) {
             delete d;
         } else {
@@ -150,12 +156,9 @@ QDBusConnectionPrivate *QDBusConnectionManager::connectToBus(QDBusConnection::Bu
     data.suspendedDelivery = suspendedDelivery;
 
     emit connectionRequested(&data);
-    if (suspendedDelivery && data.result->connection) {
-        data.result->ref.ref();
-        QDBusConnectionDispatchEnabler *o = new QDBusConnectionDispatchEnabler(data.result);
-        QTimer::singleShot(0, o, SLOT(execute()));
-        o->moveToThread(qApp->thread());    // qApp was checked in the caller
-    }
+    if (suspendedDelivery && data.result->connection)
+        data.result->enableDispatchDelayed(qApp); // qApp was checked in the caller
+
     return data.result;
 }
 
diff --git a/src/dbus/qdbusconnection_p.h b/src/dbus/qdbusconnection_p.h
index 3431992e..dc16da0a 100644
--- a/src/dbus/qdbusconnection_p.h
+++ b/src/dbus/qdbusconnection_p.h
@@ -212,6 +212,8 @@ public:
 
     void postEventToThread(int action, QObject *target, QEvent *event);
 
+    void enableDispatchDelayed(QObject *context);
+
 private:
     void checkThread();
     bool handleError(const QDBusErrorInternal &error);
@@ -357,26 +359,6 @@ extern QDBusMessage qDBusPropertySet(const QDBusConnectionPrivate::ObjectTreeNod
 extern QDBusMessage qDBusPropertyGetAll(const QDBusConnectionPrivate::ObjectTreeNode &node,
                                         const QDBusMessage &msg);
 
-// can be replaced with a lambda in Qt 5.7
-class QDBusConnectionDispatchEnabler : public QObject
-{
-    Q_OBJECT
-    QDBusConnectionPrivate *con;
-public:
-    QDBusConnectionDispatchEnabler(QDBusConnectionPrivate *con) : con(con) {}
-
-public slots:
-    void execute()
-    {
-        // This call cannot race with something disabling dispatch only because dispatch is
-        // never re-disabled from Qt code on an in-use connection once it has been enabled.
-        QMetaObject::invokeMethod(con, "setDispatchEnabled", Qt::QueuedConnection, Q_ARG(bool, true));
-        if (!con->ref.deref())
-            con->deleteLater();
-        deleteLater();
-    }
-};
-
 #endif // QT_BOOTSTRAPPED
 
 QT_END_NAMESPACE
diff --git a/src/dbus/qdbusintegrator.cpp b/src/dbus/qdbusintegrator.cpp
index 127f2b31..ec34d638 100644
--- a/src/dbus/qdbusintegrator.cpp
+++ b/src/dbus/qdbusintegrator.cpp
@@ -124,8 +124,7 @@ static dbus_bool_t qDBusAddTimeout(DBusTimeout *timeout, void *data)
 
     Q_ASSERT(d->timeouts.key(timeout, 0) == 0);
 
-    int timerId = d->startTimer(q_dbus_timeout_get_interval(timeout));
-    Q_ASSERT_X(timerId, "QDBusConnection", "Failed to start a timer");
+    int timerId = d->startTimer(std::chrono::milliseconds{q_dbus_timeout_get_interval(timeout)});
     if (!timerId)
         return false;
 
@@ -293,12 +292,8 @@ static void qDBusNewConnection(DBusServer *server, DBusConnection *connection, v
     // QDBusServer's thread in order to enable it after the
     // QDBusServer::newConnection() signal has been received by the
     // application's code
-    newConnection->ref.ref();
     QReadLocker serverLock(&serverConnection->lock);
-    QDBusConnectionDispatchEnabler *o = new QDBusConnectionDispatchEnabler(newConnection);
-    QTimer::singleShot(0, o, SLOT(execute()));
-    if (serverConnection->serverObject)
-        o->moveToThread(serverConnection->serverObject->thread());
+    newConnection->enableDispatchDelayed(serverConnection->serverObject);
 }
 
 void QDBusConnectionPrivate::_q_newConnection(QDBusConnectionPrivate *newConnection)
@@ -409,17 +404,14 @@ static QObject *findChildObject(const QDBusConnectionPrivate::ObjectTreeNode *ro
             pos = (pos == -1 ? length : pos);
             auto pathComponent = QStringView{fullpath}.mid(start, pos - start);
 
-            const QObjectList children = obj->children();
-
             // find a child with the proper name
             QObject *next = nullptr;
-            QObjectList::ConstIterator it = children.constBegin();
-            QObjectList::ConstIterator end = children.constEnd();
-            for ( ; it != end; ++it)
-                if ((*it)->objectName() == pathComponent) {
-                    next = *it;
+            for (QObject *child : std::as_const(obj->children())) {
+                if (child->objectName() == pathComponent) {
+                    next = child;
                     break;
                 }
+            }
 
             if (!next)
                 break;
@@ -561,7 +553,7 @@ bool QDBusConnectionPrivate::handleMessage(const QDBusMessage &amsg)
 
 static void huntAndDestroy(QObject *needle, QDBusConnectionPrivate::ObjectTreeNode &haystack)
 {
-    for (auto &node : haystack.children)
+    for (QDBusConnectionPrivate::ObjectTreeNode &node : haystack.children)
         huntAndDestroy(needle, node);
 
     auto isInactive = [](const QDBusConnectionPrivate::ObjectTreeNode &node) { return !node.isActive(); };
@@ -605,11 +597,11 @@ static void huntAndEmit(DBusConnection *connection, DBusMessage *msg,
                         QObject *needle, const QDBusConnectionPrivate::ObjectTreeNode &haystack,
                         bool isScriptable, bool isAdaptor, const QString &path = QString())
 {
-    QDBusConnectionPrivate::ObjectTreeNode::DataList::ConstIterator it = haystack.children.constBegin();
-    QDBusConnectionPrivate::ObjectTreeNode::DataList::ConstIterator end = haystack.children.constEnd();
-    for ( ; it != end; ++it) {
-        if (it->isActive())
-            huntAndEmit(connection, msg, needle, *it, isScriptable, isAdaptor, path + u'/' + it->name);
+    for (const QDBusConnectionPrivate::ObjectTreeNode &node : std::as_const(haystack.children)) {
+        if (node.isActive()) {
+            huntAndEmit(connection, msg, needle, node, isScriptable, isAdaptor,
+                        path + u'/' + node.name);
+        }
     }
 
     if (needle == haystack.obj) {
@@ -996,8 +988,6 @@ void QDBusConnectionPrivate::deliverCall(QObject *object, int /*flags*/, const Q
     return;
 }
 
-extern bool qDBusInitThreads();
-
 QDBusConnectionPrivate::QDBusConnectionPrivate(QObject *p)
     : QObject(p),
       ref(1),
@@ -1076,12 +1066,8 @@ QDBusConnectionPrivate::~QDBusConnectionPrivate()
 void QDBusConnectionPrivate::collectAllObjects(QDBusConnectionPrivate::ObjectTreeNode &haystack,
                                                QSet<QObject *> &set)
 {
-    QDBusConnectionPrivate::ObjectTreeNode::DataList::Iterator it = haystack.children.begin();
-
-    while (it != haystack.children.end()) {
-        collectAllObjects(*it, set);
-        it++;
-    }
+    for (ObjectTreeNode &child : haystack.children)
+        collectAllObjects(child, set);
 
     if (haystack.obj)
         set.insert(haystack.obj);
@@ -1109,11 +1095,9 @@ void QDBusConnectionPrivate::closeConnection()
         }
     }
 
-    for (auto it = pendingCalls.begin(); it != pendingCalls.end(); ++it) {
-        auto call = *it;
-        if (!call->ref.deref()) {
+    for (QDBusPendingCallPrivate *call : pendingCalls) {
+        if (!call->ref.deref())
             delete call;
-        }
     }
     pendingCalls.clear();
 
@@ -1124,18 +1108,12 @@ void QDBusConnectionPrivate::closeConnection()
     // dangling pointer.
     QSet<QObject *> allObjects;
     collectAllObjects(rootNode, allObjects);
-    SignalHookHash::const_iterator sit = signalHooks.constBegin();
-    while (sit != signalHooks.constEnd()) {
-        allObjects.insert(sit.value().obj);
-        ++sit;
-    }
+    for (const SignalHook &signalHook : std::as_const(signalHooks))
+        allObjects.insert(signalHook.obj);
 
     // now disconnect ourselves
-    QSet<QObject *>::const_iterator oit = allObjects.constBegin();
-    while (oit != allObjects.constEnd()) {
-        (*oit)->disconnect(this);
-        ++oit;
-    }
+    for (QObject *obj : std::as_const(allObjects))
+        obj->disconnect(this);
 }
 
 void QDBusConnectionPrivate::handleDBusDisconnection()
@@ -1177,11 +1155,9 @@ void QDBusConnectionPrivate::doDispatch()
     if (mode == ClientMode || mode == PeerMode) {
         if (dispatchEnabled && !pendingMessages.isEmpty()) {
             // dispatch previously queued messages
-            PendingMessageList::Iterator it = pendingMessages.begin();
-            PendingMessageList::Iterator end = pendingMessages.end();
-            for ( ; it != end; ++it) {
-                qDBusDebug() << this << "dequeueing message" << *it;
-                handleMessage(std::move(*it));
+            for (QDBusMessage &message : pendingMessages) {
+                qDBusDebug() << this << "dequeueing message" << message;
+                handleMessage(std::move(message));
             }
             pendingMessages.clear();
         }
@@ -1461,14 +1437,11 @@ void QDBusConnectionPrivate::activateObject(ObjectTreeNode &node, const QDBusMes
         if (msg.interface().isEmpty()) {
             // place the call in all interfaces
             // let the first one that handles it to work
-            QDBusAdaptorConnector::AdaptorMap::ConstIterator it =
-                connector->adaptors.constBegin();
-            QDBusAdaptorConnector::AdaptorMap::ConstIterator end =
-                connector->adaptors.constEnd();
-
-            for ( ; it != end; ++it)
-                if (activateCall(it->adaptor, newflags, msg))
+            for (const QDBusAdaptorConnector::AdaptorData &adaptorData :
+                 std::as_const(connector->adaptors)) {
+                if (activateCall(adaptorData.adaptor, newflags, msg))
                     return;
+            }
         } else {
             // check if we have an interface matching the name that was asked:
             QDBusAdaptorConnector::AdaptorMap::ConstIterator it;
@@ -1757,10 +1730,10 @@ void QDBusConnectionPrivate::setPeer(DBusConnection *c, const QDBusErrorInternal
 
     watchForDBusDisconnection();
 
-    QMetaObject::invokeMethod(this, "doDispatch", Qt::QueuedConnection);
+    QMetaObject::invokeMethod(this, &QDBusConnectionPrivate::doDispatch, Qt::QueuedConnection);
 }
 
-static QDBusConnection::ConnectionCapabilities connectionCapabilies(DBusConnection *connection)
+static QDBusConnection::ConnectionCapabilities connectionCapabilities(DBusConnection *connection)
 {
     QDBusConnection::ConnectionCapabilities result;
     typedef dbus_bool_t (*can_send_type_t)(DBusConnection *, int);
@@ -1786,7 +1759,7 @@ static QDBusConnection::ConnectionCapabilities connectionCapabilies(DBusConnecti
 
 void QDBusConnectionPrivate::handleAuthentication()
 {
-    capabilities.storeRelaxed(connectionCapabilies(connection));
+    capabilities.storeRelaxed(::connectionCapabilities(connection));
     isAuthenticated = true;
 }
 
@@ -1845,7 +1818,7 @@ void QDBusConnectionPrivate::setConnection(DBusConnection *dbc, const QDBusError
     qDBusDebug() << this << ": connected successfully";
 
     // schedule a dispatch:
-    QMetaObject::invokeMethod(this, "doDispatch", Qt::QueuedConnection);
+    QMetaObject::invokeMethod(this, &QDBusConnectionPrivate::doDispatch, Qt::QueuedConnection);
 }
 
 extern "C"{
@@ -1970,7 +1943,7 @@ bool QDBusConnectionPrivate::send(const QDBusMessage& message)
 class QDBusBlockingCallWatcher
 {
 public:
-    QDBusBlockingCallWatcher(const QDBusMessage &message)
+    Q_NODISCARD_CTOR QDBusBlockingCallWatcher(const QDBusMessage &message)
         : m_message(message), m_maxCallTimeoutMs(0)
     {
 #if defined(QT_NO_DEBUG)
@@ -2428,8 +2401,8 @@ void QDBusConnectionPrivate::registerObject(const ObjectTreeNode *node)
             connector->connectAllSignals(node->obj);
         }
 
-        connect(connector, SIGNAL(relaySignal(QObject*,const QMetaObject*,int,QVariantList)),
-                this, SLOT(relaySignal(QObject*,const QMetaObject*,int,QVariantList)),
+        connect(connector, &QDBusAdaptorConnector::relaySignal, this,
+                &QDBusConnectionPrivate::relaySignal,
                 Qt::ConnectionType(Qt::QueuedConnection | Qt::UniqueConnection));
     }
 }
@@ -2678,6 +2651,28 @@ void QDBusConnectionPrivate::postEventToThread(int action, QObject *object, QEve
     QDBusLockerBase::reportThreadAction(action, QDBusLockerBase::AfterPost, this);
 }
 
+/*
+ * Enable dispatch of D-Bus events for this connection, but only after
+ * context's thread's event loop has started and processed any already
+ * pending events. The event dispatch is then enabled in the DBus aux thread.
+ */
+void QDBusConnectionPrivate::enableDispatchDelayed(QObject *context)
+{
+    ref.ref();
+    QMetaObject::invokeMethod(
+            context,
+            [this]() {
+                // This call cannot race with something disabling dispatch only
+                // because dispatch is never re-disabled from Qt code on an
+                // in-use connection once it has been enabled.
+                QMetaObject::invokeMethod(
+                        this, [this] { setDispatchEnabled(true); }, Qt::QueuedConnection);
+                if (!ref.deref())
+                    deleteLater();
+            },
+            Qt::QueuedConnection);
+}
+
 QT_END_NAMESPACE
 
 #endif // QT_NO_DBUS
diff --git a/src/dbus/qdbusinternalfilters.cpp b/src/dbus/qdbusinternalfilters.cpp
index d963903d..d860a021 100644
--- a/src/dbus/qdbusinternalfilters.cpp
+++ b/src/dbus/qdbusinternalfilters.cpp
@@ -76,11 +76,8 @@ static const char peerInterfaceXml[] =
 static QString generateSubObjectXml(QObject *object)
 {
     QString retval;
-    const QObjectList &objs = object->children();
-    QObjectList::ConstIterator it = objs.constBegin();
-    QObjectList::ConstIterator end = objs.constEnd();
-    for ( ; it != end; ++it) {
-        QString name = (*it)->objectName();
+    for (const QObject *child : object->children()) {
+        QString name = child->objectName();
         if (!name.isEmpty() && QDBusUtil::isValidPartOfObjectPath(name))
             retval += "  <node name=\""_L1 + name + "\"/>\n"_L1;
     }
@@ -116,20 +113,22 @@ QString qDBusIntrospectObject(const QDBusConnectionPrivate::ObjectTreeNode &node
             (connector = qDBusFindAdaptorConnector(node.obj))) {
 
             // trasverse every adaptor in this object
-            QDBusAdaptorConnector::AdaptorMap::ConstIterator it = connector->adaptors.constBegin();
-            QDBusAdaptorConnector::AdaptorMap::ConstIterator end = connector->adaptors.constEnd();
-            for ( ; it != end; ++it) {
+            for (const QDBusAdaptorConnector::AdaptorData &adaptorData :
+                 std::as_const(connector->adaptors)) {
                 // add the interface:
-                QString ifaceXml = QDBusAbstractAdaptorPrivate::retrieveIntrospectionXml(it->adaptor);
+                QString ifaceXml =
+                        QDBusAbstractAdaptorPrivate::retrieveIntrospectionXml(adaptorData.adaptor);
                 if (ifaceXml.isEmpty()) {
                     // add the interface's contents:
-                    ifaceXml += qDBusGenerateMetaObjectXml(QString::fromLatin1(it->interface),
-                                                           it->adaptor->metaObject(),
-                                                           &QDBusAbstractAdaptor::staticMetaObject,
-                                                           QDBusConnection::ExportScriptableContents
-                                                           | QDBusConnection::ExportNonScriptableContents);
+                    ifaceXml += qDBusGenerateMetaObjectXml(
+                            QString::fromLatin1(adaptorData.interface),
+                            adaptorData.adaptor->metaObject(),
+                            &QDBusAbstractAdaptor::staticMetaObject,
+                            QDBusConnection::ExportScriptableContents
+                                    | QDBusConnection::ExportNonScriptableContents);
 
-                    QDBusAbstractAdaptorPrivate::saveIntrospectionXml(it->adaptor, ifaceXml);
+                    QDBusAbstractAdaptorPrivate::saveIntrospectionXml(adaptorData.adaptor,
+                                                                      ifaceXml);
                 }
 
                 xml_data += ifaceXml;
@@ -151,13 +150,10 @@ QString qDBusIntrospectObject(const QDBusConnectionPrivate::ObjectTreeNode &node
         xml_data += generateSubObjectXml(node.obj);
     } else {
         // generate from the object tree
-        QDBusConnectionPrivate::ObjectTreeNode::DataList::ConstIterator it =
-            node.children.constBegin();
-        QDBusConnectionPrivate::ObjectTreeNode::DataList::ConstIterator end =
-            node.children.constEnd();
-        for ( ; it != end; ++it)
-            if (it->obj || !it->children.isEmpty())
-                xml_data += "  <node name=\""_L1 + it->name + "\"/>\n"_L1;
+        for (const QDBusConnectionPrivate::ObjectTreeNode &node : node.children) {
+            if (node.obj || !node.children.isEmpty())
+                xml_data += "  <node name=\""_L1 + node.name + "\"/>\n"_L1;
+        }
     }
 
     xml_data += "</node>\n"_L1;
@@ -195,7 +191,7 @@ QDBusMessage qDBusPropertyGet(const QDBusConnectionPrivate::ObjectTreeNode &node
     QString interface_name = msg.arguments().at(0).toString();
     QByteArray property_name = msg.arguments().at(1).toString().toUtf8();
 
-    QDBusAdaptorConnector *connector;
+    const QDBusAdaptorConnector *connector;
     QVariant value;
     bool interfaceFound = false;
     if (node.flags & QDBusConnection::ExportAdaptors &&
@@ -204,12 +200,11 @@ QDBusMessage qDBusPropertyGet(const QDBusConnectionPrivate::ObjectTreeNode &node
         // find the class that implements interface_name or try until we've found the property
         // in case of an empty interface
         if (interface_name.isEmpty()) {
-            for (QDBusAdaptorConnector::AdaptorMap::ConstIterator it = connector->adaptors.constBegin(),
-                 end = connector->adaptors.constEnd(); it != end; ++it) {
-                const QMetaObject *mo = it->adaptor->metaObject();
+            for (const QDBusAdaptorConnector::AdaptorData &adaptorData : connector->adaptors) {
+                const QMetaObject *mo = adaptorData.adaptor->metaObject();
                 int pidx = mo->indexOfProperty(property_name);
                 if (pidx != -1) {
-                    value = mo->property(pidx).read(it->adaptor);
+                    value = mo->property(pidx).read(adaptorData.adaptor);
                     break;
                 }
             }
@@ -332,14 +327,14 @@ static int writeProperty(QObject *obj, const QByteArray &property_name, QVariant
             return PropertyWriteFailed;
         }
 
-        value = other;
+        value = std::move(other);
     }
 
     if (mp.metaType() == QMetaType::fromType<QDBusVariant>())
         value = QVariant::fromValue(QDBusVariant(value));
 
     // the property type here should match
-    return mp.write(obj, value) ? PropertyWriteSuccess : PropertyWriteFailed;
+    return mp.write(obj, std::move(value)) ? PropertyWriteSuccess : PropertyWriteFailed;
 }
 
 QDBusMessage qDBusPropertySet(const QDBusConnectionPrivate::ObjectTreeNode &node,
@@ -361,9 +356,9 @@ QDBusMessage qDBusPropertySet(const QDBusConnectionPrivate::ObjectTreeNode &node
         // find the class that implements interface_name or try until we've found the property
         // in case of an empty interface
         if (interface_name.isEmpty()) {
-            for (QDBusAdaptorConnector::AdaptorMap::ConstIterator it = connector->adaptors.constBegin(),
-                 end = connector->adaptors.constEnd(); it != end; ++it) {
-                int status = writeProperty(it->adaptor, property_name, value);
+            for (const QDBusAdaptorConnector::AdaptorData &adaptorData :
+                 std::as_const(connector->adaptors)) {
+                int status = writeProperty(adaptorData.adaptor, property_name, value);
                 if (status == PropertyNotFound)
                     continue;
                 return propertyWriteReply(msg, interface_name, property_name, status);
@@ -401,10 +396,8 @@ QDBusMessage qDBusPropertySet(const QDBusConnectionPrivate::ObjectTreeNode &node
 // unite two QVariantMaps, but don't generate duplicate keys
 static QVariantMap &operator+=(QVariantMap &lhs, const QVariantMap &rhs)
 {
-    QVariantMap::ConstIterator it = rhs.constBegin(),
-                              end = rhs.constEnd();
-    for ( ; it != end; ++it)
-        lhs.insert(it.key(), it.value());
+    for (const auto &[key, value] : rhs.asKeyValueRange())
+        lhs.insert(key, value);
     return lhs;
 }
 
@@ -461,9 +454,10 @@ QDBusMessage qDBusPropertyGetAll(const QDBusConnectionPrivate::ObjectTreeNode &n
 
         if (interface_name.isEmpty()) {
             // iterate over all interfaces
-            for (QDBusAdaptorConnector::AdaptorMap::ConstIterator it = connector->adaptors.constBegin(),
-                 end = connector->adaptors.constEnd(); it != end; ++it) {
-                result += readAllProperties(it->adaptor, QDBusConnection::ExportAllProperties);
+            for (const QDBusAdaptorConnector::AdaptorData &adaptorData :
+                 std::as_const(connector->adaptors)) {
+                result += readAllProperties(adaptorData.adaptor,
+                                            QDBusConnection::ExportAllProperties);
             }
         } else {
             // find the class that implements interface_name
diff --git a/src/dbus/qdbusmarshaller.cpp b/src/dbus/qdbusmarshaller.cpp
index e3fb298f..480b1977 100644
--- a/src/dbus/qdbusmarshaller.cpp
+++ b/src/dbus/qdbusmarshaller.cpp
@@ -206,10 +206,8 @@ inline void QDBusMarshaller::append(const QStringList &arg)
 
     QDBusMarshaller sub(capabilities);
     open(sub, DBUS_TYPE_ARRAY, DBUS_TYPE_STRING_AS_STRING);
-    QStringList::ConstIterator it = arg.constBegin();
-    QStringList::ConstIterator end = arg.constEnd();
-    for ( ; it != end; ++it)
-        sub.append(*it);
+    for (const QString &s : arg)
+        sub.append(s);
     // don't call sub.close(): it auto-closes
 }
 
diff --git a/src/dbus/qdbusmessage.cpp b/src/dbus/qdbusmessage.cpp
index fb3f8600..6372fe04 100644
--- a/src/dbus/qdbusmessage.cpp
+++ b/src/dbus/qdbusmessage.cpp
@@ -155,14 +155,12 @@ DBusMessage *QDBusMessagePrivate::toDBusMessage(const QDBusMessage &message, QDB
     d_ptr->parametersValidated = true;
 
     QDBusMarshaller marshaller(capabilities);
-    QVariantList::ConstIterator it =  d_ptr->arguments.constBegin();
-    QVariantList::ConstIterator cend = d_ptr->arguments.constEnd();
     q_dbus_message_iter_init_append(msg, &marshaller.iterator);
     if (!d_ptr->message.isEmpty())
         // prepend the error message
         marshaller.append(d_ptr->message);
-    for ( ; it != cend; ++it)
-        marshaller.appendVariantInternal(*it);
+    for (const QVariant &argument : std::as_const(d_ptr->arguments))
+        marshaller.appendVariantInternal(argument);
 
     // check if everything is ok
     if (marshaller.ok)
@@ -239,10 +237,8 @@ QDBusMessage QDBusMessagePrivate::makeLocal(const QDBusConnectionPrivate &conn,
 
     // determine if we are carrying any complex types
     QString computedSignature;
-    QVariantList::ConstIterator it = asSent.d_ptr->arguments.constBegin();
-    QVariantList::ConstIterator end = asSent.d_ptr->arguments.constEnd();
-    for ( ; it != end; ++it) {
-        QMetaType id = it->metaType();
+    for (const QVariant &argument : std::as_const(asSent.d_ptr->arguments)) {
+        QMetaType id = argument.metaType();
         const char *signature = QDBusMetaType::typeToSignature(id);
         if ((id.id() != QMetaType::QStringList && id.id() != QMetaType::QByteArray &&
              qstrlen(signature) != 1) || id == QMetaType::fromType<QDBusVariant>()) {
@@ -804,12 +800,10 @@ static QDebug operator<<(QDebug dbg, QDBusMessage::MessageType t)
 static void debugVariantList(QDebug dbg, const QVariantList &list)
 {
     bool first = true;
-    QVariantList::ConstIterator it = list.constBegin();
-    QVariantList::ConstIterator end = list.constEnd();
-    for ( ; it != end; ++it) {
+    for (const QVariant &elem : list) {
         if (!first)
             dbg.nospace() << ", ";
-        dbg.nospace() << qPrintable(QDBusUtil::argumentToString(*it));
+        dbg.nospace() << qPrintable(QDBusUtil::argumentToString(elem));
         first = false;
     }
 }
diff --git a/src/dbus/qdbusmetaobject.cpp b/src/dbus/qdbusmetaobject.cpp
index 054bc448..2e367e63 100644
--- a/src/dbus/qdbusmetaobject.cpp
+++ b/src/dbus/qdbusmetaobject.cpp
@@ -55,8 +55,9 @@ private:
         QByteArray name;
     };
 
-    QMap<QByteArray, Method> signals_;
-    QMap<QByteArray, Method> methods;
+    using MethodMap = QMap<QByteArray, Method>;
+    MethodMap signals_;
+    MethodMap methods;
     QMap<QByteArray, Property> properties;
 
     const QDBusIntrospection::Interface *data;
@@ -70,7 +71,7 @@ private:
     void parseSignals();
     void parseProperties();
 
-    static qsizetype aggregateParameterCount(const QMap<QByteArray, Method> &map);
+    static qsizetype aggregateParameterCount(const MethodMap &map);
 };
 
 static const qsizetype intsPerProperty = 2;
@@ -208,10 +209,7 @@ void QDBusMetaObjectGenerator::parseMethods()
     //  Add cloned methods when the remote object has return types
     //
 
-    QDBusIntrospection::Methods::ConstIterator method_it = data->methods.constBegin();
-    QDBusIntrospection::Methods::ConstIterator method_end = data->methods.constEnd();
-    for ( ; method_it != method_end; ++method_it) {
-        const QDBusIntrospection::Method &m = *method_it;
+    for (const QDBusIntrospection::Method &m : std::as_const(data->methods)) {
         Method mm;
 
         mm.name = m.name.toLatin1();
@@ -284,10 +282,7 @@ void QDBusMetaObjectGenerator::parseMethods()
 
 void QDBusMetaObjectGenerator::parseSignals()
 {
-    QDBusIntrospection::Signals::ConstIterator signal_it = data->signals_.constBegin();
-    QDBusIntrospection::Signals::ConstIterator signal_end = data->signals_.constEnd();
-    for ( ; signal_it != signal_end; ++signal_it) {
-        const QDBusIntrospection::Signal &s = *signal_it;
+    for (const QDBusIntrospection::Signal &s : std::as_const(data->signals_)) {
         Method mm;
 
         mm.name = s.name.toLatin1();
@@ -331,10 +326,7 @@ void QDBusMetaObjectGenerator::parseSignals()
 
 void QDBusMetaObjectGenerator::parseProperties()
 {
-    QDBusIntrospection::Properties::ConstIterator prop_it = data->properties.constBegin();
-    QDBusIntrospection::Properties::ConstIterator prop_end = data->properties.constEnd();
-    for ( ; prop_it != prop_end; ++prop_it) {
-        const QDBusIntrospection::Property &p = *prop_it;
+    for (const QDBusIntrospection::Property &p : std::as_const(data->properties)) {
         Property mp;
         Type type = findType(p.type.toLatin1(), p.annotations);
         if (type.id == QMetaType::UnknownType)
@@ -360,14 +352,11 @@ void QDBusMetaObjectGenerator::parseProperties()
 // Returns the sum of all parameters (including return type) for the given
 // \a map of methods. This is needed for calculating the size of the methods'
 // parameter type/name meta-data.
-qsizetype QDBusMetaObjectGenerator::aggregateParameterCount(const QMap<QByteArray, Method> &map)
+qsizetype QDBusMetaObjectGenerator::aggregateParameterCount(const MethodMap &map)
 {
     qsizetype sum = 0;
-    QMap<QByteArray, Method>::const_iterator it;
-    for (it = map.constBegin(); it != map.constEnd(); ++it) {
-        const Method &m = it.value();
+    for (const Method &m : map)
         sum += m.inputTypes.size() + qMax(qsizetype(1), m.outputTypes.size());
-    }
     return sum;
 }
 
@@ -391,7 +380,7 @@ void QDBusMetaObjectGenerator::write(QDBusMetaObject *obj)
             - methods.size(); // ditto
 
     QDBusMetaObjectPrivate *header = reinterpret_cast<QDBusMetaObjectPrivate *>(idata.data());
-    static_assert(QMetaObjectPrivate::OutputRevision == 11, "QtDBus meta-object generator should generate the same version as moc");
+    static_assert(QMetaObjectPrivate::OutputRevision == 12, "QtDBus meta-object generator should generate the same version as moc");
     header->revision = QMetaObjectPrivate::OutputRevision;
     header->className = 0;
     header->classInfoCount = 0;
@@ -415,10 +404,14 @@ void QDBusMetaObjectGenerator::write(QDBusMetaObject *obj)
     qsizetype data_size = idata.size() +
                     (header->methodCount * (QMetaObjectPrivate::IntsPerMethod+intsPerMethod)) + methodParametersDataSize +
                     (header->propertyCount * (QMetaObjectPrivate::IntsPerProperty+intsPerProperty));
-    for (const Method &mm : std::as_const(signals_))
-        data_size += 2 + mm.inputTypes.size() + mm.outputTypes.size();
-    for (const Method &mm : std::as_const(methods))
-        data_size += 2 + mm.inputTypes.size() + mm.outputTypes.size();
+
+    // Signals must be added before other methods, to match moc.
+    std::array<std::reference_wrapper<const MethodMap>, 2> methodMaps = { signals_, methods };
+
+    for (const auto &methodMap : methodMaps) {
+        for (const Method &mm : methodMap.get())
+            data_size += 2 + mm.inputTypes.size() + mm.outputTypes.size();
+    }
     idata.resize(data_size + 1);
 
     QMetaStringTable strings(className.toLatin1());
@@ -431,9 +424,9 @@ void QDBusMetaObjectGenerator::write(QDBusMetaObject *obj)
 
     qsizetype totalMetaTypeCount = properties.size();
     ++totalMetaTypeCount; // + 1 for metatype of dynamic metaobject
-    for (const auto& methodContainer: {signals_, methods}) {
-        for (const auto& method: methodContainer) {
-            qsizetype argc = method.inputTypes.size() + qMax(qsizetype(0), method.outputTypes.size() - 1);
+    for (const auto &methodMap : methodMaps) {
+        for (const Method &mm : methodMap.get()) {
+            qsizetype argc = mm.inputTypes.size() + qMax(qsizetype(0), mm.outputTypes.size() - 1);
             totalMetaTypeCount += argc + 1;
         }
     }
@@ -442,13 +435,9 @@ void QDBusMetaObjectGenerator::write(QDBusMetaObject *obj)
 
     // add each method:
     qsizetype currentMethodMetaTypeOffset = properties.size() + 1;
-    for (int x = 0; x < 2; ++x) {
-        // Signals must be added before other methods, to match moc.
-        QMap<QByteArray, Method> &map = (x == 0) ? signals_ : methods;
-        for (QMap<QByteArray, Method>::ConstIterator it = map.constBegin();
-             it != map.constEnd(); ++it) {
-            const Method &mm = it.value();
 
+    for (const auto &methodMap : methodMaps) {
+        for (const Method &mm : methodMap.get()) {
             qsizetype argc = mm.inputTypes.size() + qMax(qsizetype(0), mm.outputTypes.size() - 1);
 
             idata[offset++] = strings.enter(mm.name);
@@ -514,12 +503,9 @@ void QDBusMetaObjectGenerator::write(QDBusMetaObject *obj)
 
     // add each property
     signatureOffset = header->propertyDBusData;
-    for (QMap<QByteArray, Property>::ConstIterator it = properties.constBegin();
-         it != properties.constEnd(); ++it) {
-        const Property &mp = it.value();
-
+    for (const auto &[name, mp] : std::as_const(properties).asKeyValueRange()) {
         // form is name, typeinfo, flags
-        idata[offset++] = strings.enter(it.key()); // name
+        idata[offset++] = strings.enter(name);
         Q_ASSERT(mp.type != QMetaType::UnknownType);
         idata[offset++] = mp.type;
         idata[offset++] = mp.flags;
diff --git a/src/dbus/qdbusmetatype.cpp b/src/dbus/qdbusmetatype.cpp
index 6238a5a0..5fe5a60a 100644
--- a/src/dbus/qdbusmetatype.cpp
+++ b/src/dbus/qdbusmetatype.cpp
@@ -99,9 +99,13 @@ void QDBusMetaTypeId::init()
     }
 }
 
-using QDBusCustomTypeHash = QHash<int, QDBusCustomTypeInfo>;
-Q_GLOBAL_STATIC(QDBusCustomTypeHash, customTypes)
-Q_GLOBAL_STATIC(QReadWriteLock, customTypesLock)
+struct QDBusCustomTypes
+{
+    QReadWriteLock lock;
+    QHash<int, QDBusCustomTypeInfo> hash;
+};
+
+Q_GLOBAL_STATIC(QDBusCustomTypes, customTypes)
 
 /*!
     \class QDBusMetaType
@@ -182,12 +186,15 @@ void QDBusMetaType::registerMarshallOperators(QMetaType metaType, MarshallFuncti
                                               DemarshallFunction df)
 {
     int id = metaType.id();
-    auto *ct = customTypes();
-    if (id < 0 || !mf || !df || !ct)
+    if (id < 0 || !mf || !df)
         return;                 // error!
 
-    QWriteLocker locker(customTypesLock());
-    QDBusCustomTypeInfo &info = (*ct)[id];
+    auto *ct = customTypes();
+    if (!ct)
+        return;
+
+    QWriteLocker locker(&ct->lock);
+    QDBusCustomTypeInfo &info = ct->hash[id];
     info.marshall = mf;
     info.demarshall = df;
 }
@@ -200,15 +207,19 @@ void QDBusMetaType::registerMarshallOperators(QMetaType metaType, MarshallFuncti
 */
 bool QDBusMetaType::marshall(QDBusArgument &arg, QMetaType metaType, const void *data)
 {
+    auto *ct = customTypes();
+    if (!ct)
+        return false;
+
     int id = metaType.id();
     QDBusMetaTypeId::init();
 
     MarshallFunction mf;
     {
-        QReadLocker locker(customTypesLock());
-        auto *ct = customTypes();
-        auto it = ct->constFind(id);
-        if (it == ct->cend())
+        QReadLocker locker(&ct->lock);
+
+        auto it = ct->hash.constFind(id);
+        if (it == ct->hash.cend())
             return false;       // non-existent
 
         const QDBusCustomTypeInfo &info = *it;
@@ -231,15 +242,19 @@ bool QDBusMetaType::marshall(QDBusArgument &arg, QMetaType metaType, const void
 */
 bool QDBusMetaType::demarshall(const QDBusArgument &arg, QMetaType metaType, void *data)
 {
+    auto *ct = customTypes();
+    if (!ct)
+        return false;
+
     int id = metaType.id();
     QDBusMetaTypeId::init();
 
     DemarshallFunction df;
     {
-        QReadLocker locker(customTypesLock());
-        auto *ct = customTypes();
-        auto it = ct->constFind(id);
-        if (it == ct->cend())
+        QReadLocker locker(&ct->lock);
+
+        auto it = ct->hash.constFind(id);
+        if (it == ct->hash.cend())
             return false;       // non-existent
 
         const QDBusCustomTypeInfo &info = *it;
@@ -357,8 +372,11 @@ QMetaType QDBusMetaType::signatureToMetaType(const char *signature)
 void QDBusMetaType::registerCustomType(QMetaType type, const QByteArray &signature)
 {
     auto *ct = customTypes();
-    QWriteLocker locker(customTypesLock());
-    auto &info = (*ct)[type.id()];
+    if (!ct)
+        return;
+
+    QWriteLocker locker(&ct->lock);
+    auto &info = ct->hash[type.id()];
     info.signature = signature;
     // note how marshall/demarshall are not set, the type is never used at runtime
 }
@@ -430,10 +448,13 @@ const char *QDBusMetaType::typeToSignature(QMetaType type)
 
     // try the database
     auto *ct = customTypes();
+    if (!ct)
+        return nullptr;
+
     {
-        QReadLocker locker(customTypesLock());
-        auto it = ct->constFind(type.id());
-        if (it == ct->end())
+        QReadLocker locker(&ct->lock);
+        auto it = ct->hash.constFind(type.id());
+        if (it == ct->hash.end())
             return nullptr;
 
         const QDBusCustomTypeInfo &info = *it;
@@ -453,8 +474,8 @@ const char *QDBusMetaType::typeToSignature(QMetaType type)
         QByteArray signature = QDBusArgumentPrivate::createSignature(type.id());
 
         // re-acquire lock
-        QWriteLocker locker(customTypesLock());
-        info = &(*ct)[type.id()];
+        QWriteLocker locker(&ct->lock);
+        info = &ct->hash[type.id()];
         info->signature = signature;
     }
     return info->signature;
diff --git a/src/dbus/qdbusmetatype_p.h b/src/dbus/qdbusmetatype_p.h
index fdae8035..447d5f48 100644
--- a/src/dbus/qdbusmetatype_p.h
+++ b/src/dbus/qdbusmetatype_p.h
@@ -28,18 +28,17 @@
 
 QT_BEGIN_NAMESPACE
 
-struct QDBusMetaTypeId
-{
-    static QMetaType message();         // QDBusMessage
-    static QMetaType argument();        // QDBusArgument
-    static QMetaType variant();         // QDBusVariant
-    static QMetaType objectpath();      // QDBusObjectPath
-    static QMetaType signature();       // QDBusSignature
-    static QMetaType error();           // QDBusError
-    static QMetaType unixfd();          // QDBusUnixFileDescriptor
+namespace QDBusMetaTypeId {
+QMetaType message(); // QDBusMessage
+QMetaType argument(); // QDBusArgument
+QMetaType variant(); // QDBusVariant
+QMetaType objectpath(); // QDBusObjectPath
+QMetaType signature(); // QDBusSignature
+QMetaType error(); // QDBusError
+QMetaType unixfd(); // QDBusUnixFileDescriptor
 
-    static void init();
-};
+void init();
+}; // namespace QDBusMetaTypeId
 
 inline QMetaType QDBusMetaTypeId::message()
 { return QMetaType::fromType<QDBusMessage>(); }
diff --git a/src/dbus/qdbusmisc.cpp b/src/dbus/qdbusmisc.cpp
index b1da4711..502624cd 100644
--- a/src/dbus/qdbusmisc.cpp
+++ b/src/dbus/qdbusmisc.cpp
@@ -117,10 +117,7 @@ int qDBusParametersForMethod(const QList<QByteArray> &parameterTypes, QList<QMet
     metaTypes.append(QMetaType());        // return type
     int inputCount = 0;
     bool seenMessage = false;
-    QList<QByteArray>::ConstIterator it = parameterTypes.constBegin();
-    QList<QByteArray>::ConstIterator end = parameterTypes.constEnd();
-    for ( ; it != end; ++it) {
-        QByteArray type = *it;
+    for (QByteArray type : parameterTypes) {
         if (type.endsWith('*')) {
             errorMsg = "Pointers are not supported: "_L1 + QLatin1StringView(type);
             return -1;
diff --git a/src/dbus/qdbuspendingcall.cpp b/src/dbus/qdbuspendingcall.cpp
index ff5dfc89..87589178 100644
--- a/src/dbus/qdbuspendingcall.cpp
+++ b/src/dbus/qdbuspendingcall.cpp
@@ -474,7 +474,9 @@ QDBusPendingCallWatcher::QDBusPendingCallWatcher(const QDBusPendingCall &call, Q
             d->watcherHelper = new QDBusPendingCallWatcherHelper;
             if (d->replyMessage.type() != QDBusMessage::InvalidMessage) {
                 // cause a signal emission anyways
-                QMetaObject::invokeMethod(d->watcherHelper, "finished", Qt::QueuedConnection);
+                QMetaObject::invokeMethod(d->watcherHelper,
+                                          &QDBusPendingCallWatcherHelper::finished,
+                                          Qt::QueuedConnection);
             }
         }
         d->watcherHelper->add(this);
diff --git a/src/dbus/qdbusthreaddebug_p.h b/src/dbus/qdbusthreaddebug_p.h
index 73be3d75..a1d3a420 100644
--- a/src/dbus/qdbusthreaddebug_p.h
+++ b/src/dbus/qdbusthreaddebug_p.h
@@ -93,7 +93,7 @@ struct QDBusReadLocker: QDBusLockerBase
 {
     QDBusConnectionPrivate *self;
     ThreadAction action;
-    inline QDBusReadLocker(ThreadAction a, QDBusConnectionPrivate *s)
+    Q_NODISCARD_CTOR QDBusReadLocker(ThreadAction a, QDBusConnectionPrivate *s)
         : self(s), action(a)
     {
         reportThreadAction(action, BeforeLock, self);
@@ -113,7 +113,7 @@ struct QDBusWriteLocker: QDBusLockerBase
 {
     QDBusConnectionPrivate *self;
     ThreadAction action;
-    inline QDBusWriteLocker(ThreadAction a, QDBusConnectionPrivate *s)
+    Q_NODISCARD_CTOR QDBusWriteLocker(ThreadAction a, QDBusConnectionPrivate *s)
         : self(s), action(a)
     {
         reportThreadAction(action, BeforeLock, self);
diff --git a/src/gui/CMakeLists.txt b/src/gui/CMakeLists.txt
index 84c51c75..c2c9b964 100644
--- a/src/gui/CMakeLists.txt
+++ b/src/gui/CMakeLists.txt
@@ -56,14 +56,13 @@ qt_internal_add_module(Gui
         Qt::Network
     QMAKE_MODULE_CONFIG "${qmake_module_config}"
     SOURCES
-        accessible/qaccessible.h
-        accessible/qplatformaccessibility.h
+        compat/removed_api.cpp
         image/qabstractfileiconengine.cpp image/qabstractfileiconengine_p.h
         image/qabstractfileiconprovider.cpp image/qabstractfileiconprovider.h image/qabstractfileiconprovider_p.h
         image/qbitmap.cpp image/qbitmap.h
         image/qbmphandler.cpp image/qbmphandler_p.h
         image/qicon.cpp image/qicon.h image/qicon_p.h
-        image/qiconengine.cpp image/qiconengine.h
+        image/qiconengine.cpp image/qiconengine.h image/qiconengine_p.h
         image/qiconengineplugin.cpp image/qiconengineplugin.h
         image/qiconloader.cpp image/qiconloader_p.h
         image/qimage.cpp image/qimage.h image/qimage_p.h
@@ -213,14 +212,10 @@ qt_internal_add_module(Gui
         painting/qtriangulatingstroker.cpp painting/qtriangulatingstroker_p.h
         painting/qtriangulator.cpp painting/qtriangulator_p.h
         painting/qvectorpath_p.h
-        rhi/qrhi.cpp rhi/qrhi_p.h
-        rhi/qrhi_p_p.h
+        rhi/qrhi.cpp rhi/qrhi.h rhi/qrhi_platform.h rhi/qrhi_p.h
         rhi/qrhinull.cpp rhi/qrhinull_p.h
-        rhi/qrhinull_p_p.h
-        rhi/qshader.cpp rhi/qshader_p.h
-        rhi/qshader_p_p.h
-        rhi/qshaderdescription.cpp rhi/qshaderdescription_p.h
-        rhi/qshaderdescription_p_p.h
+        rhi/qshader.cpp rhi/qshader.h rhi/qshader_p.h
+        rhi/qshaderdescription.cpp rhi/qshaderdescription.h rhi/qshaderdescription_p.h
         text/qabstracttextdocumentlayout.cpp text/qabstracttextdocumentlayout.h text/qabstracttextdocumentlayout_p.h
         text/qdistancefield.cpp text/qdistancefield_p.h
         text/qfont.cpp text/qfont.h text/qfont_p.h
@@ -269,6 +264,7 @@ qt_internal_add_module(Gui
         QT_QPA_DEFAULT_PLATFORM_NAME="${QT_QPA_DEFAULT_PLATFORM}"
     INCLUDE_DIRECTORIES
         ../3rdparty/VulkanMemoryAllocator
+        ../3rdparty/D3D12MemoryAllocator
     LIBRARIES
         Qt::CorePrivate
     PUBLIC_LIBRARIES
@@ -276,12 +272,15 @@ qt_internal_add_module(Gui
     PRIVATE_MODULE_INTERFACE
         Qt::CorePrivate
     NO_PCH_SOURCES
+        compat/removed_api.cpp
         painting/qdrawhelper.cpp
     PRECOMPILED_HEADER
         "kernel/qt_gui_pch.h"
     GENERATE_CPP_EXPORTS
     QPA_HEADER_FILTERS
         "(^|/)qplatform.+\\.h$|(^|/)qwindowsystem.+\\.h$"
+    RHI_HEADER_FILTERS
+        "(^|/)qrhi\\.h$|(^|/)qrhi_platform\\.h$|(^|/)qshader\\.h$|(^|/)qshaderdescription\\.h$"
 )
 
 # Resources:
@@ -357,7 +356,6 @@ qt_internal_extend_target(Gui CONDITION QT_FEATURE_opengl
         opengl/qopenglfunctions.cpp
         opengl/qopenglprogrambinarycache.cpp opengl/qopenglprogrambinarycache_p.h
         rhi/qrhigles2.cpp rhi/qrhigles2_p.h
-        rhi/qrhigles2_p_p.h
 )
 
 qt_internal_extend_target(Gui CONDITION MACOS
@@ -370,6 +368,11 @@ qt_internal_extend_target(Gui CONDITION MACOS
         ${FWAppKit}
 )
 
+qt_internal_extend_target(Gui CONDITION WASM
+    SOURCES
+        platform/wasm/qwasmnativeinterface.cpp
+)
+
 qt_internal_extend_target(Gui CONDITION APPLE
     SOURCES
         image/qimage_darwin.mm
@@ -402,10 +405,12 @@ qt_internal_extend_target(Gui CONDITION WIN32
         platform/windows/qwindowsguieventdispatcher.cpp platform/windows/qwindowsguieventdispatcher_p.h
         platform/windows/qwindowsmimeconverter.h platform/windows/qwindowsmimeconverter.cpp
         platform/windows/qwindowsnativeinterface.cpp
-        rhi/cs_tdr_p.h
-        rhi/qrhid3d11.cpp rhi/qrhid3d11_p.h
-        rhi/qrhid3d11_p_p.h
+        rhi/qrhid3d11.cpp rhi/qrhid3d11_p.h rhi/qrhid3dhelpers_p.h
         rhi/vs_test_p.h
+        rhi/qrhid3d12.cpp rhi/qrhid3d12_p.h
+        rhi/cs_mipmap_p.h
+        ../3rdparty/D3D12MemoryAllocator/D3D12MemAlloc.h
+        ../3rdparty/D3D12MemoryAllocator/D3D12MemAlloc.cpp
         text/windows/qwindowsfontdatabase.cpp text/windows/qwindowsfontdatabase_p.h
         text/windows/qwindowsfontdatabasebase.cpp text/windows/qwindowsfontdatabasebase_p.h
         text/windows/qwindowsfontengine.cpp text/windows/qwindowsfontengine_p.h
@@ -420,6 +425,7 @@ qt_internal_extend_target(Gui CONDITION WIN32
         d3d11
         dxgi
         dxguid
+        d3d12
 )
 
 if(QT_FEATURE_egl)
@@ -435,6 +441,14 @@ qt_internal_extend_target(Gui CONDITION QT_FEATURE_egl
         EGL::EGL
 )
 
+# These two headers are always installed, their contents are guarded with
+# "#if QT_CONFIG(accessibility)", so if QT_FEATURE_accessibility is not
+# enabled, they are just duds.
+qt_internal_extend_target(Gui
+    SOURCES
+        accessible/qaccessible.h accessible/qplatformaccessibility.h
+)
+
 qt_internal_extend_target(Gui CONDITION QT_FEATURE_accessibility
     SOURCES
         accessible/qaccessible.cpp accessible/qaccessible_base.h
@@ -637,9 +651,6 @@ qt_internal_extend_target(Gui CONDITION QT_FEATURE_harfbuzz AND UIKIT
 qt_internal_extend_target(Gui CONDITION QT_FEATURE_textodfwriter
     SOURCES
         text/qtextodfwriter.cpp text/qtextodfwriter_p.h
-        text/qzip.cpp
-        text/qzipreader_p.h
-        text/qzipwriter_p.h
 )
 
 qt_internal_extend_target(Gui CONDITION QT_FEATURE_textmarkdownreader
@@ -822,7 +833,6 @@ qt_internal_extend_target(Gui CONDITION QT_FEATURE_filesystemmodel
 qt_internal_extend_target(Gui CONDITION QT_FEATURE_vulkan
     SOURCES
         rhi/qrhivulkan.cpp rhi/qrhivulkan_p.h
-        rhi/qrhivulkanext_p.h
         vulkan/qbasicvulkanplatforminstance.cpp vulkan/qbasicvulkanplatforminstance_p.h
         vulkan/qplatformvulkaninstance.cpp vulkan/qplatformvulkaninstance.h
         vulkan/qvulkandefaultinstance.cpp vulkan/qvulkandefaultinstance_p.h
@@ -958,7 +968,6 @@ qt_internal_extend_target(Gui CONDITION QT_FEATURE_xkbcommon AND UNIX
 qt_internal_extend_target(Gui CONDITION IOS OR MACOS
     SOURCES
         rhi/qrhimetal.mm rhi/qrhimetal_p.h
-        rhi/qrhimetal_p_p.h
     PUBLIC_LIBRARIES
         ${FWMetal}
 )
diff --git a/src/gui/accessible/linux/atspiadaptor_p.h b/src/gui/accessible/linux/atspiadaptor_p.h
index c9877f04..3a890f3d 100644
--- a/src/gui/accessible/linux/atspiadaptor_p.h
+++ b/src/gui/accessible/linux/atspiadaptor_p.h
@@ -19,7 +19,6 @@
 #include <atspi/atspi-constants.h>
 
 #include <QtGui/private/qtguiglobal_p.h>
-#include <QtCore/qsharedpointer.h>
 #include <QtDBus/qdbusvirtualobject.h>
 #include <QtGui/qaccessible.h>
 
diff --git a/src/gui/accessible/linux/qspi_constant_mappings.cpp b/src/gui/accessible/linux/qspi_constant_mappings.cpp
index b3e8816d..4fc7bdf8 100644
--- a/src/gui/accessible/linux/qspi_constant_mappings.cpp
+++ b/src/gui/accessible/linux/qspi_constant_mappings.cpp
@@ -97,6 +97,7 @@ QSpiUIntList spiStateSetFromSpiStates(quint64 states)
 
 AtspiRelationType qAccessibleRelationToAtSpiRelation(QAccessible::Relation relation)
 {
+    // direction of the relation is "inversed" in Qt and AT-SPI
     switch (relation) {
     case QAccessible::Label:
         return ATSPI_RELATION_LABELLED_BY;
@@ -106,6 +107,14 @@ AtspiRelationType qAccessibleRelationToAtSpiRelation(QAccessible::Relation relat
         return ATSPI_RELATION_CONTROLLED_BY;
     case QAccessible::Controlled:
         return ATSPI_RELATION_CONTROLLER_FOR;
+    case QAccessible::DescriptionFor:
+        return ATSPI_RELATION_DESCRIBED_BY;
+    case QAccessible::Described:
+        return ATSPI_RELATION_DESCRIPTION_FOR;
+    case QAccessible::FlowsFrom:
+        return ATSPI_RELATION_FLOWS_TO;
+    case QAccessible::FlowsTo:
+        return ATSPI_RELATION_FLOWS_FROM;
     default:
         qWarning() << "Cannot return AT-SPI relation for:" << relation;
     }
diff --git a/src/gui/accessible/qaccessible.cpp b/src/gui/accessible/qaccessible.cpp
index 13333bf0..583abf53 100644
--- a/src/gui/accessible/qaccessible.cpp
+++ b/src/gui/accessible/qaccessible.cpp
@@ -354,14 +354,29 @@ Q_LOGGING_CATEGORY(lcAccessibilityCore, "qt.accessibility.core");
     \enum QAccessible::RelationFlag
 
     This enum type defines bit flags that can be combined to indicate
-    the relationship between two accessible objects.
+    the relationship between two accessible objects. It is used by
+    the relations() function, which returns a list of all the related
+    interfaces of the calling object, together with the relations
+    for each object.
 
-    \value Label            The first object is the label of the second object.
-    \value Labelled         The first object is labelled by the second object.
-    \value Controller       The first object controls the second object.
-    \value Controlled       The first object is controlled by the second object.
-    \value AllRelations     Used as a mask to specify that we are interesting in information
-                            about all relations
+    Each entry in the list is a QPair where the \c second member stores
+    the relation type(s) between the \c returned object represented by the
+    \c first member and the \c origin (the caller) interface/object.
+
+    In the table below, the \c returned object refers to the object in
+    the returned list, and the \c origin object is the one represented
+    by the calling interface.
+
+    \value Label                        The \c returned object is the label for the \c origin object.
+    \value Labelled                     The \c returned object is labelled by the \c origin object.
+    \value Controller                   The \c returned object controls the \c origin object.
+    \value Controlled                   The \c returned object is controlled by the \c origin object.
+    \value [since 6.6] DescriptionFor   The \c returned object provides a description for the \c origin object.
+    \value [since 6.6] Described        The \c returned object is described by the \c origin object.
+    \value [since 6.6] FlowsFrom        Content logically flows from the \c returned object to the \c origin object.
+    \value [since 6.6] FlowsTo          Content logically flows to the \c returned object from the \c origin object.
+    \value AllRelations                 Used as a mask to specify that we are interesting in information
+                                        about all relations
 
     Implementations of relations() return a combination of these flags.
     Some values are mutually exclusive.
@@ -851,11 +866,11 @@ void QAccessible::updateAccessibility(QAccessibleEvent *event)
             if (iface->tableInterface())
                 iface->tableInterface()->modelChange(static_cast<QAccessibleTableModelChangeEvent*>(event));
         }
+    }
 
-        if (updateHandler) {
-            updateHandler(event);
-            return;
-        }
+    if (updateHandler) {
+        updateHandler(event);
+        return;
     }
 
     if (QPlatformAccessibility *pfAccessibility = platformAccessibility())
diff --git a/src/gui/accessible/qaccessible_base.h b/src/gui/accessible/qaccessible_base.h
index ac50c262..74926a35 100644
--- a/src/gui/accessible/qaccessible_base.h
+++ b/src/gui/accessible/qaccessible_base.h
@@ -331,6 +331,10 @@ public:
         Labelled      = 0x00000002,
         Controller    = 0x00000004,
         Controlled    = 0x00000008,
+        DescriptionFor = 0x00000010,
+        Described     = 0x00000020,
+        FlowsFrom     = 0x00000040,
+        FlowsTo       = 0x00000080,
         AllRelations  = 0xffffffff
     };
     Q_DECLARE_FLAGS(Relation, RelationFlag)
diff --git a/src/gui/accessible/qaccessiblecache.cpp b/src/gui/accessible/qaccessiblecache.cpp
index 3010ffdd..b41a2481 100644
--- a/src/gui/accessible/qaccessiblecache.cpp
+++ b/src/gui/accessible/qaccessiblecache.cpp
@@ -130,7 +130,7 @@ void QAccessibleCache::objectDestroyed(QObject* obj)
     /*
     In some cases we might add a not fully-constructed object to the cache. This might happen with
     for instance QWidget subclasses that are in the construction phase. If updateAccessibility() is
-    called in the constructor of QWidget (directly or indirectly), it it will end up asking for the
+    called in the constructor of QWidget (directly or indirectly), it will end up asking for the
     classname of that widget in order to know which accessibility interface subclass the
     accessibility factory should instantiate and return. However, since that requires a virtual
     call to metaObject(), it will return the metaObject() of QWidget (not for the subclass), and so
diff --git a/src/gui/compat/removed_api.cpp b/src/gui/compat/removed_api.cpp
new file mode 100644
index 00000000..8d1c8a19
--- /dev/null
+++ b/src/gui/compat/removed_api.cpp
@@ -0,0 +1,26 @@
+// Copyright (C) 2023 The Qt Company Ltd.
+// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
+
+#define QT_GUI_BUILD_REMOVED_API
+
+#include "qtguiglobal.h"
+
+QT_USE_NAMESPACE
+
+#if QT_GUI_REMOVED_SINCE(6, 6)
+
+#include "qpixmapcache.h" // inlined API
+
+// #include "qotherheader.h"
+// // implement removed functions from qotherheader.h
+// order sections alphabetically
+
+#endif // QT_GUI_REMOVED_SINCE(6, 6)
+
+#if QT_GUI_REMOVED_SINCE(6, 7)
+
+// #include "qotherheader.h"
+// // implement removed functions from qotherheader.h
+// order sections alphabetically
+
+#endif // QT_GUI_REMOVED_SINCE(6, 7)
diff --git a/src/gui/configure.cmake b/src/gui/configure.cmake
index d8319c12..02a80130 100644
--- a/src/gui/configure.cmake
+++ b/src/gui/configure.cmake
@@ -28,7 +28,8 @@ set_property(CACHE INPUT_libpng PROPERTY STRINGS undefined no qt system)
 
 
 #### Libraries
-qt_set01(X11_SUPPORTED LINUX OR HPUX OR FREEBSD OR NETBSD OR OPENBSD OR SOLARIS OR HURD) # special case
+qt_set01(X11_SUPPORTED LINUX OR HPUX OR FREEBSD OR NETBSD OR OPENBSD OR SOLARIS OR
+    HURD)
 qt_find_package(ATSPI2 PROVIDED_TARGETS PkgConfig::ATSPI2 MODULE_NAME gui QMAKE_LIB atspi)
 qt_find_package(DirectFB PROVIDED_TARGETS PkgConfig::DirectFB MODULE_NAME gui QMAKE_LIB directfb)
 qt_find_package(Libdrm PROVIDED_TARGETS Libdrm::Libdrm MODULE_NAME gui QMAKE_LIB drm)
@@ -57,7 +58,8 @@ qt_find_package(Mtdev PROVIDED_TARGETS PkgConfig::Mtdev MODULE_NAME gui QMAKE_LI
 qt_find_package(WrapOpenGL PROVIDED_TARGETS WrapOpenGL::WrapOpenGL MODULE_NAME gui QMAKE_LIB opengl)
 qt_find_package(GLESv2 PROVIDED_TARGETS GLESv2::GLESv2 MODULE_NAME gui QMAKE_LIB opengl_es2)
 qt_find_package(Tslib PROVIDED_TARGETS PkgConfig::Tslib MODULE_NAME gui QMAKE_LIB tslib)
-qt_find_package(WrapVulkanHeaders PROVIDED_TARGETS WrapVulkanHeaders::WrapVulkanHeaders MODULE_NAME gui QMAKE_LIB vulkan MARK_OPTIONAL) # special case
+qt_find_package(WrapVulkanHeaders PROVIDED_TARGETS WrapVulkanHeaders::WrapVulkanHeaders
+    MODULE_NAME gui QMAKE_LIB vulkan MARK_OPTIONAL)
 if((LINUX) OR QT_FIND_ALL_PACKAGES_ALWAYS)
     qt_find_package(Wayland PROVIDED_TARGETS Wayland::Server MODULE_NAME gui QMAKE_LIB wayland_server)
 endif()
@@ -277,8 +279,8 @@ qt_config_compile_test(egl_viv
     LABEL "i.Mx6 EGL"
     LIBRARIES
         EGL::EGL
-    COMPILE_OPTIONS # special case
-        "-DEGL_API_FB=1" # special case
+    COMPILE_OPTIONS
+        "-DEGL_API_FB=1"
     CODE
 "#include <EGL/egl.h>
 #include <EGL/eglvivante.h>
@@ -406,11 +408,9 @@ ioctl(fd, FBIOGET_VSCREENINFO, &vinfo);
 ")
 
 # opengles3
-# special case begin
 if(WASM)
     set(extra_compiler_options "-s FULL_ES3=1")
 endif()
-# special case end
 
 set(test_libs GLESv2::GLESv2)
 if(INTEGRITY AND _qt_igy_gui_libs)
@@ -421,9 +421,7 @@ qt_config_compile_test(opengles3
     LABEL "OpenGL ES 3.0"
     LIBRARIES
         ${test_libs}
-# special case begin
     COMPILE_OPTIONS ${extra_compiler_options}
-# special case end
     CODE
 "#ifdef __APPLE__
 #  include <OpenGLES/ES3/gl.h>
@@ -553,7 +551,6 @@ libinput_event_pointer_get_scroll_value_v120(nullptr, LIBINPUT_POINTER_AXIS_SCRO
 }
 ")
 
-# special case begin
 # directwrite (assumes DirectWrite2)
 qt_config_compile_test(directwrite
     LABEL "WINDOWS directwrite"
@@ -615,7 +612,6 @@ int main(int, char **)
     return 0;
 }
 ")
-# special case end
 
 
 #### Features
@@ -633,21 +629,21 @@ qt_feature("directfb" PRIVATE
 )
 qt_feature("directwrite" PRIVATE
     LABEL "DirectWrite"
-    CONDITION TEST_directwrite # special case
+    CONDITION TEST_directwrite
     EMIT_IF WIN32
 )
 qt_feature("directwrite3" PRIVATE
     LABEL "DirectWrite 3"
-    CONDITION QT_FEATURE_directwrite AND TEST_directwrite3 # special case
+    CONDITION QT_FEATURE_directwrite AND TEST_directwrite3
     EMIT_IF WIN32
 )
 qt_feature("direct2d" PRIVATE
     LABEL "Direct 2D"
-    CONDITION WIN32 AND NOT WINRT AND TEST_d2d1 # special case
+    CONDITION WIN32 AND NOT WINRT AND TEST_d2d1
 )
 qt_feature("direct2d1_1" PRIVATE
     LABEL "Direct 2D 1.1"
-    CONDITION QT_FEATURE_direct2d AND TEST_d2d1_1 # special case
+    CONDITION QT_FEATURE_direct2d AND TEST_d2d1_1
 )
 qt_feature("evdev" PRIVATE
     LABEL "evdev"
@@ -1316,7 +1312,7 @@ qt_configure_end_summary_section() # end of "GL integrations" section
 qt_configure_end_summary_section() # end of "XCB" section
 qt_configure_add_summary_section(NAME "Windows")
 qt_configure_add_summary_entry(ARGS "direct2d")
-qt_configure_add_summary_entry(ARGS "direct2d1_1") ### special case
+qt_configure_add_summary_entry(ARGS "direct2d1_1")
 qt_configure_add_summary_entry(ARGS "directwrite")
 qt_configure_add_summary_entry(ARGS "directwrite3")
 qt_configure_end_summary_section() # end of "Windows" section
diff --git a/src/gui/doc/includes/QtGuiDoc b/src/gui/doc/includes/QtGuiDoc
index 80292141..e8fa7378 100644
--- a/src/gui/doc/includes/QtGuiDoc
+++ b/src/gui/doc/includes/QtGuiDoc
@@ -16,3 +16,8 @@
 #include <QtGui/qpa/qplatformscreen_p.h>
 #include <QtGui/private/qguiapplication_p.h>
 #include <QtGui/private/qkeymapper_p.h>
+
+// rhi
+#include <QtGui/rhi/qrhi.h>
+#include <QtGui/rhi/qshader.h>
+#include <QtGui/rhi/qshaderdescription.h>
diff --git a/src/gui/doc/qtgui.qdocconf b/src/gui/doc/qtgui.qdocconf
index 00dc548d..3698cf34 100644
--- a/src/gui/doc/qtgui.qdocconf
+++ b/src/gui/doc/qtgui.qdocconf
@@ -39,6 +39,7 @@ depends += \
     qtdoc \
     qmake \
     qtcmake \
+    qtshadertools \
     qttestlib \
     qtplatformintegration \
     qthelp
diff --git a/src/gui/doc/snippets/qfileopenevent/main.cpp b/src/gui/doc/snippets/qfileopenevent/main.cpp
index b733bfc3..a94ff581 100644
--- a/src/gui/doc/snippets/qfileopenevent/main.cpp
+++ b/src/gui/doc/snippets/qfileopenevent/main.cpp
@@ -1,4 +1,4 @@
-// Copyright (C) 2016 Samuel Gaist <samuel.gaist@edeltech.ch>
+// Copyright (C) 2023 Samuel Gaist <samuel.gaist@edeltech.ch>
 // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
 
 //! [QApplication subclass]
@@ -19,7 +19,15 @@ public:
     {
         if (event->type() == QEvent::FileOpen) {
             QFileOpenEvent *openEvent = static_cast<QFileOpenEvent *>(event);
-            qDebug() << "Open file" << openEvent->file();
+            const QUrl url = openEvent->url();
+            if (url.isLocalFile()) {
+                QFile localFile(url.toLocalFile());
+                // read from local file
+            } else if (url.isValid()) {
+                // process according to the URL's schema
+            } else {
+                // parse openEvent->file()
+            }
         }
 
         return QApplication::event(event);
diff --git a/src/gui/doc/snippets/rhioffscreen/color.frag b/src/gui/doc/snippets/rhioffscreen/color.frag
new file mode 100644
index 00000000..ad9d953d
--- /dev/null
+++ b/src/gui/doc/snippets/rhioffscreen/color.frag
@@ -0,0 +1,16 @@
+//! [0]
+#version 440
+
+layout(location = 0) in vec3 v_color;
+layout(location = 0) out vec4 fragColor;
+
+layout(std140, binding = 0) uniform buf {
+    mat4 mvp;
+    float opacity;
+};
+
+void main()
+{
+    fragColor = vec4(v_color * opacity, opacity);
+}
+//! [0]
diff --git a/src/gui/doc/snippets/rhioffscreen/color.vert b/src/gui/doc/snippets/rhioffscreen/color.vert
new file mode 100644
index 00000000..0010e555
--- /dev/null
+++ b/src/gui/doc/snippets/rhioffscreen/color.vert
@@ -0,0 +1,18 @@
+//! [0]
+#version 440
+
+layout(location = 0) in vec4 position;
+layout(location = 1) in vec3 color;
+layout(location = 0) out vec3 v_color;
+
+layout(std140, binding = 0) uniform buf {
+    mat4 mvp;
+    float opacity;
+};
+
+void main()
+{
+    v_color = color;
+    gl_Position = mvp * position;
+}
+//! [0]
diff --git a/src/gui/doc/snippets/rhioffscreen/main.cpp b/src/gui/doc/snippets/rhioffscreen/main.cpp
new file mode 100644
index 00000000..217b07dc
--- /dev/null
+++ b/src/gui/doc/snippets/rhioffscreen/main.cpp
@@ -0,0 +1,149 @@
+// Copyright (C) 2023 The Qt Company Ltd.
+// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
+
+//! [0]
+#include <QGuiApplication>
+#include <QImage>
+#include <QFile>
+#include <rhi/qrhi.h>
+
+int main(int argc, char **argv)
+{
+    QGuiApplication app(argc, argv);
+
+    std::unique_ptr<QRhi> rhi;
+#if defined(Q_OS_WIN)
+    QRhiD3D12InitParams params;
+    rhi.reset(QRhi::create(QRhi::D3D12, &params));
+#elif defined(Q_OS_MACOS) || defined(Q_OS_IOS)
+    QRhiMetalInitParams params;
+    rhi.reset(QRhi::create(QRhi::Metal, &params));
+#elif QT_CONFIG(vulkan)
+    QVulkanInstance inst;
+    inst.setExtensions(QRhiVulkanInitParams::preferredInstanceExtensions());
+    if (inst.create()) {
+        QRhiVulkanInitParams params;
+        params.inst = &inst;
+        rhi.reset(QRhi::create(QRhi::Vulkan, &params));
+    } else {
+        qFatal("Failed to create Vulkan instance");
+    }
+#endif
+    if (rhi)
+        qDebug() << rhi->backendName() << rhi->driverInfo();
+    else
+        qFatal("Failed to initialize RHI");
+
+    float rotation = 0.0f;
+    float opacity = 1.0f;
+    int opacityDir = 1;
+
+    std::unique_ptr<QRhiTexture> tex(rhi->newTexture(QRhiTexture::RGBA8,
+                                                     QSize(1280, 720),
+                                                     1,
+                                                     QRhiTexture::RenderTarget | QRhiTexture::UsedAsTransferSource));
+    tex->create();
+    std::unique_ptr<QRhiTextureRenderTarget> rt(rhi->newTextureRenderTarget({ tex.get() }));
+    std::unique_ptr<QRhiRenderPassDescriptor> rp(rt->newCompatibleRenderPassDescriptor());
+    rt->setRenderPassDescriptor(rp.get());
+    rt->create();
+
+    QMatrix4x4 viewProjection = rhi->clipSpaceCorrMatrix();
+    viewProjection.perspective(45.0f, 1280 / 720.f, 0.01f, 1000.0f);
+    viewProjection.translate(0, 0, -4);
+
+    static float vertexData[] = { // Y up, CCW
+        0.0f,   0.5f,     1.0f, 0.0f, 0.0f,
+        -0.5f, -0.5f,     0.0f, 1.0f, 0.0f,
+        0.5f,  -0.5f,     0.0f, 0.0f, 1.0f,
+    };
+
+    std::unique_ptr<QRhiBuffer> vbuf(rhi->newBuffer(QRhiBuffer::Immutable,
+                                                    QRhiBuffer::VertexBuffer,
+                                                    sizeof(vertexData)));
+    vbuf->create();
+
+    std::unique_ptr<QRhiBuffer> ubuf(rhi->newBuffer(QRhiBuffer::Dynamic,
+                                                    QRhiBuffer::UniformBuffer,
+                                                    64 + 4));
+    ubuf->create();
+
+    std::unique_ptr<QRhiShaderResourceBindings> srb(rhi->newShaderResourceBindings());
+    srb->setBindings({
+        QRhiShaderResourceBinding::uniformBuffer(0,
+                                                 QRhiShaderResourceBinding::VertexStage | QRhiShaderResourceBinding::FragmentStage,
+                                                 ubuf.get())
+    });
+    srb->create();
+
+    std::unique_ptr<QRhiGraphicsPipeline> ps(rhi->newGraphicsPipeline());
+    QRhiGraphicsPipeline::TargetBlend premulAlphaBlend;
+    premulAlphaBlend.enable = true;
+    ps->setTargetBlends({ premulAlphaBlend });
+    static auto getShader = [](const QString &name) {
+        QFile f(name);
+        return f.open(QIODevice::ReadOnly) ? QShader::fromSerialized(f.readAll()) : QShader();
+    };
+    ps->setShaderStages({
+        { QRhiShaderStage::Vertex, getShader(QLatin1String("color.vert.qsb")) },
+        { QRhiShaderStage::Fragment, getShader(QLatin1String("color.frag.qsb")) }
+    });
+    QRhiVertexInputLayout inputLayout;
+    inputLayout.setBindings({
+        { 5 * sizeof(float) }
+    });
+    inputLayout.setAttributes({
+        { 0, 0, QRhiVertexInputAttribute::Float2, 0 },
+        { 0, 1, QRhiVertexInputAttribute::Float3, 2 * sizeof(float) }
+    });
+    ps->setVertexInputLayout(inputLayout);
+    ps->setShaderResourceBindings(srb.get());
+    ps->setRenderPassDescriptor(rp.get());
+    ps->create();
+
+    QRhiCommandBuffer *cb;
+    for (int frame = 0; frame < 20; ++frame) {
+        rhi->beginOffscreenFrame(&cb);
+
+        QRhiResourceUpdateBatch *u = rhi->nextResourceUpdateBatch();
+        if (frame == 0)
+            u->uploadStaticBuffer(vbuf.get(), vertexData);
+
+        QMatrix4x4 mvp = viewProjection;
+        mvp.rotate(rotation, 0, 1, 0);
+        u->updateDynamicBuffer(ubuf.get(), 0, 64, mvp.constData());
+        rotation += 5.0f;
+
+        u->updateDynamicBuffer(ubuf.get(), 64, 4, &opacity);
+        opacity += opacityDir * 0.2f;
+        if (opacity < 0.0f || opacity > 1.0f) {
+            opacityDir *= -1;
+            opacity = qBound(0.0f, opacity, 1.0f);
+        }
+
+        cb->beginPass(rt.get(), Qt::green, { 1.0f, 0 }, u);
+        cb->setGraphicsPipeline(ps.get());
+        cb->setViewport({ 0, 0, 1280, 720 });
+        cb->setShaderResources();
+        const QRhiCommandBuffer::VertexInput vbufBinding(vbuf.get(), 0);
+        cb->setVertexInput(0, 1, &vbufBinding);
+        cb->draw(3);
+        QRhiReadbackResult readbackResult;
+        u = rhi->nextResourceUpdateBatch();
+        u->readBackTexture({ tex.get() }, &readbackResult);
+        cb->endPass(u);
+
+        rhi->endOffscreenFrame();
+
+        QImage image(reinterpret_cast<const uchar *>(readbackResult.data.constData()),
+                     readbackResult.pixelSize.width(),
+                     readbackResult.pixelSize.height(),
+                     QImage::Format_RGBA8888_Premultiplied);
+        if (rhi->isYUpInFramebuffer())
+            image = image.mirrored();
+        image.save(QString::asprintf("frame%d.png", frame));
+    }
+
+    return 0;
+}
+//! [0]
diff --git a/src/gui/doc/src/external-resources.qdoc b/src/gui/doc/src/external-resources.qdoc
index cea63f59..67ba9f30 100644
--- a/src/gui/doc/src/external-resources.qdoc
+++ b/src/gui/doc/src/external-resources.qdoc
@@ -46,3 +46,13 @@
     \externalpage https://www.lunarg.com/vulkan-sdk/
     \title LunarG Vulkan SDK
 */
+
+/*!
+    \externalpage https://developer.android.com/reference/androidx/core/content/FileProvider
+    \title Android: FileProvider
+*/
+
+/*!
+    \externalpage https://developer.android.com/training/secure-file-sharing/setup-sharing.html
+    \title Android: Setting up file sharing
+*/
diff --git a/src/gui/doc/src/qt6-changes.qdoc b/src/gui/doc/src/qt6-changes.qdoc
index f4ad7679..60e1bffb 100644
--- a/src/gui/doc/src/qt6-changes.qdoc
+++ b/src/gui/doc/src/qt6-changes.qdoc
@@ -114,4 +114,38 @@
     Metal, in addition to OpenGL. On Windows the default choice is Direct 3D,
     therefore the removal of ANGLE is alleviated by having support for graphics
     APIs other than OpenGL as well.
+
+    \section2 Native clipboard integration
+
+    Qt 5 provided interfaces for integrating platform specific or custom
+    clipboard formats into Qt through \c QMacPasteboardMime in \c QtMacExtras,
+    and \c QWindowsMime from the Windows QPA API. Since Qt 6.6, the
+    equivalent functionality is provided by the classes QUtiMimeConverter for
+    \macos, and the QWindowsMimeConverter for Windows.
+
+    Porting from QWindowsMime to QWindowsMimeConverter requires practically no
+    changes, as the virtual interface is identical. However, in Qt 6 it is no
+    longer needed to register a QWindowsMimeConverter implementation;
+    instantiating the type implicitly registers the converter.
+
+    Porting a QMacPasteboardMime to QUtiMimeConverter requires renaming some of
+    the virtual functions. Note that the \c{QMacPasteboardMime} API used the
+    outdated term \c{flavor} for the native clipboard format on \macos, whereas
+    the platform now uses \c{Uniform Type Identifiers}, i.e. \c{UTI}s, which Qt
+    has adapted for function and parameter names.
+
+    The \c{mimeFor} and \c{flavorFor} functions are replaced by the
+    \l{QUtiMimeConverter::}{mimeForUti} and \l{QUtiMimeConverter::}{utiForMime}
+    implementations, respectively. Those should return the name of the mime
+    type or \c{UTI} that the converter can convert the input format to, so a
+    port usually just involves renaming existing overrides. The
+    \c{convertToMime}, \c{convertFromMime}, and \c{count} functions in
+    QUtiMimeConverter are identical to their QMacPasteboardMime versions.
+
+    The \c{canConvert}, \c{converterName} functions are no longer needed, they
+    are implied by implementation of the above functions, so overrides of those
+    functions can be removed.
+
+    As with the the QWindowsMimeConverter, registration is done by instantiating
+    the type.
 */
diff --git a/src/gui/doc/src/qtgui-overview.qdoc b/src/gui/doc/src/qtgui-overview.qdoc
index e4052db5..8ba191d7 100644
--- a/src/gui/doc/src/qtgui-overview.qdoc
+++ b/src/gui/doc/src/qtgui-overview.qdoc
@@ -51,6 +51,56 @@
     that prefer more low-level APIs to text and font handling can use classes
     like QRawFont and QGlyphRun.
 
+    \section1 RHI Graphics
+
+    The Qt Rendering Hardware Interface is an abstraction for hardware accelerated
+    graphics APIs, such as, \l{https://www.khronos.org/opengl/}{OpenGL},
+    \l{https://www.khronos.org/opengles/}{OpenGL ES},
+    \l{https://docs.microsoft.com/en-us/windows/desktop/direct3d}{Direct3D},
+    \l{https://developer.apple.com/metal/}{Metal}, and
+    \l{https://www.khronos.org/vulkan/}{Vulkan}.
+
+    As an alternative to using OpenGL or Vulkan directly to render to a
+    QWindow, \l QRhi and the related classes provide a portable, cross-platform
+    3D graphics and compute API complemented by a shader conditioning and
+    transpiling pipeline. This way applications can avoid directly depending on
+    a single, and, in some cases, vendor or platform-specific 3D API.
+
+    Below is a list of the main RHI-related classes. These are complemented by
+    a number of additional classes and structs.
+
+    \list
+        \li QRhi
+        \li QShader
+        \li QShaderDescription
+        \li QRhiCommandBuffer
+        \li QRhiResourceUpdateBatch
+        \li QRhiBuffer
+        \li QRhiRenderBuffer
+        \li QRhiTexture
+        \li QRhiSampler
+        \li QRhiTextureRenderTarget
+        \li QRhiShaderResourceBindings
+        \li QRhiGraphicsPipeline
+        \li QRhiComputePipeline
+        \li QRhiSwapChain
+    \endlist
+
+    See the \l{RHI Window Example} for an introductory example of creating a
+    portable, cross-platform application that performs accelerated 3D rendering
+    onto a QWindow using QRhi.
+
+    \note The RHI family of APIs are currently offered with a limited
+    compatibility guarantee, as opposed to regular Qt public APIs. See \l QRhi
+    for details.
+
+    \section1 3D Matrix and Vector Math
+
+    The Qt GUI module also contains a few math classes to aid with the most
+    common mathematical operations related to 3D graphics. These classes
+    include \l {QMatrix4x4}, \l {QVector2D}, \l {QVector3D}, \l {QVector4D},
+    and \l {QQuaternion}.
+
     \section1 OpenGL and OpenGL ES Integration
 
     QWindow supports rendering using OpenGL and OpenGL ES, depending on what the
@@ -86,10 +136,6 @@
 
     For more information, see the \l {OpenGL Window Example}.
 
-    The Qt GUI module also contains a few math classes to aid with the most
-    common mathematical operations related to 3D graphics. These classes include
-    \l {QMatrix4x4}, \l {QVector4D}, and \l {QQuaternion}.
-
     A \l {QWindow} created with the \l {QSurface::OpenGLSurface} can be used in
     combination with \l QPainter and \l QOpenGLPaintDevice to have OpenGL
     hardware-accelerated 2D graphics by sacrificing some of the visual quality.
@@ -104,18 +150,21 @@
 
     On Android, Vulkan headers were added in API level 24 of the NDK.
 
-    Relevant classes:
+    The main relevant classes for low-level Vulkan support are:
 
     \list
-        \li QVulkanDeviceFunctions
-        \li QVulkanExtension
-        \li QVulkanFunctions
-        \li QVulkanInfoVector
         \li QVulkanInstance
-        \li QVulkanWindow
-        \li QVulkanWindowRenderer
+        \li QVulkanFunctions
+        \li QVulkanDeviceFunctions
     \endlist
 
+    In addition, \l QVulkanWindow provides a convenience subclass of QWindow
+    that makes it easier to get started with implementing Vulkan-based
+    rendering targeting a QWindow. Using this helper class is completely
+    optional; applications with more advanced Vulkan-based renderers may
+    instead want to use a QWindow with the \l {QSurface::VulkanSurface} type
+    directly.
+
     For more information, see the \l{Hello Vulkan Widget Example}
     and the \l {Hello Vulkan Triangle Example}.
 
diff --git a/src/gui/doc/src/qtgui.qdoc b/src/gui/doc/src/qtgui.qdoc
index d39fa722..4ea35232 100644
--- a/src/gui/doc/src/qtgui.qdoc
+++ b/src/gui/doc/src/qtgui.qdoc
@@ -54,6 +54,8 @@
         \list
             \li \l {Application Windows} {Qt GUI Application Windows}
             \li \l {2D Graphics} {Qt GUI 2D Graphics}
+            \li \l {RHI Graphics} {Qt GUI Accelerated 2D and 3D Graphics using the Qt RHI}
+            \li \l {3D Matrix and Vector Math} {Qt GUI Matrix and Vector Math}
             \li \l {OpenGL and OpenGL ES Integration}
                    {Qt GUI OpenGL and OpenGL ES Integration}
             \li \l {Vulkan Integration} {Qt GUI Vulkan Integration}
diff --git a/src/gui/doc/src/richtext.qdoc b/src/gui/doc/src/richtext.qdoc
index 75b85d3e..d6702856 100644
--- a/src/gui/doc/src/richtext.qdoc
+++ b/src/gui/doc/src/richtext.qdoc
@@ -11,7 +11,7 @@
     \page richtext.html
     \title Rich Text Processing
     \brief An overview of Qt's rich text processing, editing and display features.
-
+    \ingroup explanations-ui
     \ingroup frameworks-technologies
     \ingroup qt-basic-concepts
     \ingroup best-practices
@@ -839,11 +839,7 @@
     \section1 Supported Tags
 
     The following table lists the HTML tags supported by Qt's
-    \l{Rich Text Processing}{rich text} engine.
-
-    \note The functionality implemented for tags listed below is a subset of
-          the full HTML 4 specification. Not all attributes are supported,
-          see comments for each tag.
+    \l{Rich Text Processing}{rich text} engine:
 
     \table 70%
     \header \li Tag
diff --git a/src/gui/image/qbitmap.cpp b/src/gui/image/qbitmap.cpp
index 96ff03ce..2208cca1 100644
--- a/src/gui/image/qbitmap.cpp
+++ b/src/gui/image/qbitmap.cpp
@@ -196,7 +196,7 @@ QBitmap QBitmap::fromImage(QImage &&image, Qt::ImageConversionFlags flags)
     Constructs a bitmap with the given \a size, and sets the contents to
     the \a bits supplied.
 
-    The bitmap data has to be byte aligned and provided in in the bit
+    The bitmap data has to be byte aligned and provided in the bit
     order specified by \a monoFormat. The mono format must be either
     QImage::Format_Mono or QImage::Format_MonoLSB. Use
     QImage::Format_Mono to specify data on the XBM format.
diff --git a/src/gui/image/qicon.cpp b/src/gui/image/qicon.cpp
index de4a2b99..f95b194f 100644
--- a/src/gui/image/qicon.cpp
+++ b/src/gui/image/qicon.cpp
@@ -1121,6 +1121,10 @@ QString QIcon::name() const
     \since 4.6
 
     Sets the search paths for icon themes to \a paths.
+
+    The content of \a paths should follow the theme format
+    documented by setThemeName().
+
     \sa themeSearchPaths(), fromTheme(), setThemeName()
 */
 void QIcon::setThemeSearchPaths(const QStringList &paths)
@@ -1129,20 +1133,14 @@ void QIcon::setThemeSearchPaths(const QStringList &paths)
 }
 
 /*!
-  \since 4.6
+    \since 4.6
 
-  Returns the search paths for icon themes.
+    Returns the search paths for icon themes.
 
-  The default value will depend on the platform:
+    The default search paths will be defined by the platform.
+    All platforms will also have the resource directory \c{:\icons} as a fallback.
 
-  On X11, the search path will use the XDG_DATA_DIRS environment
-  variable if available.
-
-  By default all platforms will have the resource directory
-  \c{:\icons} as a fallback. You can use "rcc -project" to generate a
-  resource file from your icon theme.
-
-  \sa setThemeSearchPaths(), fromTheme(), setThemeName()
+    \sa setThemeSearchPaths(), fromTheme(), setThemeName()
 */
 QStringList QIcon::themeSearchPaths()
 {
@@ -1154,12 +1152,13 @@ QStringList QIcon::themeSearchPaths()
 
     Returns the fallback search paths for icons.
 
-    The fallback search paths are used to look for standalone
+    The fallback search paths are consulted for standalone
     icon files if the \l{themeName()}{current icon theme}
     or \l{fallbackIconTheme()}{fallback icon theme} do
     not provide results for an icon lookup.
 
-    The default value will depend on the platform.
+    If not set, the fallback search paths will be defined
+    by the platform.
 
     \sa setFallbackSearchPaths(), themeSearchPaths()
 */
@@ -1173,12 +1172,12 @@ QStringList QIcon::fallbackSearchPaths()
 
     Sets the fallback search paths for icons to \a paths.
 
-    The fallback search paths are used to look for standalone
+    The fallback search paths are consulted for standalone
     icon files if the \l{themeName()}{current icon theme}
     or \l{fallbackIconTheme()}{fallback icon theme} do
     not provide results for an icon lookup.
 
-    \note To add some path without replacing existing ones:
+    For example:
 
     \snippet code/src_gui_image_qicon.cpp 5
 
@@ -1194,9 +1193,15 @@ void QIcon::setFallbackSearchPaths(const QStringList &paths)
 
     Sets the current icon theme to \a name.
 
-    The \a name should correspond to a directory name in the
-    themeSearchPath() containing an index.theme
-    file describing its contents.
+    The theme will be will be looked up in themeSearchPaths().
+
+    At the moment the only supported icon theme format is the
+    \l{Freedesktop Icon Theme Specification}. The \a name should
+    correspond to a directory name in the themeSearchPath()
+    containing an \c index.theme file describing its contents.
+
+    \externalpage http://standards.freedesktop.org/icon-theme-spec/icon-theme-spec-latest.html
+    \title Freedesktop Icon Theme Specification
 
     \sa themeSearchPaths(), themeName()
 */
@@ -1210,8 +1215,15 @@ void QIcon::setThemeName(const QString &name)
 
     Returns the name of the current icon theme.
 
-    On X11, the current icon theme depends on your desktop
-    settings. On other platforms it is not set by default.
+    If not set, the current icon theme will be defined by the
+    platform.
+
+    \note Platform icon themes are only implemented on
+    \l{Freedesktop} based systems at the moment, and the
+    icon theme depends on your desktop settings.
+
+    \externalpage https://www.freedesktop.org/
+    \title Freedesktop
 
     \sa setThemeName(), themeSearchPaths(), fromTheme(),
     hasThemeIcon()
@@ -1226,8 +1238,12 @@ QString QIcon::themeName()
 
     Returns the name of the fallback icon theme.
 
-    On X11, if not set, the fallback icon theme depends on your desktop
-    settings. On other platforms it is not set by default.
+    If not set, the fallback icon theme will be defined by the
+    platform.
+
+    \note Platform fallback icon themes are only implemented on
+    \l{Freedesktop} based systems at the moment, and the
+    icon theme depends on your desktop settings.
 
     \sa setFallbackThemeName(), themeName()
 */
@@ -1241,16 +1257,16 @@ QString QIcon::fallbackThemeName()
 
     Sets the fallback icon theme to \a name.
 
-    The fallback icon theme is used for last resort lookup of icons
-    not provided by the \l{themeName()}{current icon theme},
-    or if the \l{themeName()}{current icon theme} does not exist.
+    The fallback icon theme is consulted for icons not provided by
+    the \l{themeName()}{current icon theme}, or if the \l{themeName()}
+    {current icon theme} does not exist.
 
-    The \a name should correspond to a directory name in the
-    themeSearchPath() containing an index.theme
-    file describing its contents.
+    The \a name should correspond to theme in the same format
+    as documented by setThemeName(), and will be looked up
+    in themeSearchPaths().
 
-    \note This should be done before creating \l QGuiApplication, to ensure
-    correct initialization.
+    \note Fallback icon themes should be set before creating
+    QGuiApplication, to ensure correct initialization.
 
     \sa fallbackThemeName(), themeSearchPaths(), themeName()
 */
@@ -1262,34 +1278,33 @@ void QIcon::setFallbackThemeName(const QString &name)
 /*!
     \since 4.6
 
-    Returns the QIcon corresponding to \a name in the current
-    icon theme.
+    Returns the QIcon corresponding to \a name in the
+    \l{themeName()}{current icon theme}.
 
-    The latest version of the freedesktop icon specification and naming
-    specification can be obtained here:
-
-    \list
-    \li \l{http://standards.freedesktop.org/icon-theme-spec/icon-theme-spec-latest.html}
-    \li \l{http://standards.freedesktop.org/icon-naming-spec/icon-naming-spec-latest.html}
-    \endlist
+    If the current theme does not provide an icon for \a name,
+    the \l{fallbackIconTheme()}{fallback icon theme} is consulted,
+    before falling back to looking up standalone icon files in the
+    \l{QIcon::fallbackSearchPaths()}{fallback icon search path}.
 
     To fetch an icon from the current icon theme:
 
     \snippet code/src_gui_image_qicon.cpp 3
 
-    \note By default, only X11 will support themed icons. In order to
-    use themed icons on Mac and Windows, you will have to bundle a
-    compliant theme in one of your themeSearchPaths() and set the
-    appropriate themeName().
+    If an \l{themeName()}{icon theme} has not been explicitly
+    set via setThemeName() a platform defined icon theme will
+    be used.
 
-    \note Qt will make use of GTK's icon-theme.cache if present to speed up
-    the lookup. These caches can be generated using gtk-update-icon-cache:
-    \l{https://developer.gnome.org/gtk3/stable/gtk-update-icon-cache.html}.
+    \note Platform icon themes is only implemented on
+    \l{Freedesktop} based systems at the moment,
+    following the \l{Freedesktop Icon Naming Specification}.
+    In order to use themed icons on other platforms, you will have
+    to bundle a \l{setThemeName()}{compliant theme} in one of your
+    themeSearchPaths(), and set the appropriate themeName().
 
-    \note If an icon can't be found in the current theme, then it will be
-    searched in fallbackSearchPaths() as an unthemed icon.
+    \externalpage https://specifications.freedesktop.org/icon-naming-spec/icon-naming-spec-latest.html
+    \title Freedesktop Icon Naming Specification
 
-    \sa themeName(), setThemeName(), themeSearchPaths(), fallbackSearchPaths()
+    \sa themeName(), fallbackIconTheme(), setThemeName(), themeSearchPaths(), fallbackSearchPaths()
 */
 QIcon QIcon::fromTheme(const QString &name)
 {
@@ -1297,32 +1312,36 @@ QIcon QIcon::fromTheme(const QString &name)
     if (QIcon *cachedIcon = qtIconCache()->object(name))
         return *cachedIcon;
 
-    QIcon icon;
-    if (QDir::isAbsolutePath(name)) {
+    if (QDir::isAbsolutePath(name))
         return QIcon(name);
-    } else {
-        QPlatformTheme * const platformTheme = QGuiApplicationPrivate::platformTheme();
-        bool hasUserTheme = QIconLoader::instance()->hasUserTheme();
-        QIconEngine * const engine = (platformTheme && !hasUserTheme) ? platformTheme->createIconEngine(name)
-                                                   : new QIconLoaderEngine(name);
-        icon = QIcon(engine);
-        qtIconCache()->insert(name, new QIcon(icon));
-    }
 
+    QIcon icon(new QThemeIconEngine(name));
+    qtIconCache()->insert(name, new QIcon(icon));
     return icon;
 }
 
 /*!
     \overload
 
-    Returns the QIcon corresponding to \a name in the current
-    icon theme. If no such icon is found in the current theme
-    \a fallback is returned instead.
+    Returns the QIcon corresponding to \a name in the
+    \l{themeName()}{current icon theme}.
 
-    If you want to provide a guaranteed fallback for platforms that
-    do not support theme icons, you can use the second argument:
+    If the current theme does not provide an icon for \a name,
+    the \l{fallbackIconTheme()}{fallback icon theme} is consulted,
+    before falling back to looking up standalone icon files in the
+    \l{QIcon::fallbackSearchPaths()}{fallback icon search path}.
+
+    If no icon is found \a fallback is returned.
+
+    This is useful to provide a guaranteed fallback, regardless of
+    whether the current set of icon themes and fallbacks paths
+    support the requested icon.
+
+    For example:
 
     \snippet code/src_gui_image_qicon.cpp 4
+
+    \sa fallbackIconTheme(), fallbackSearchPaths()
 */
 QIcon QIcon::fromTheme(const QString &name, const QIcon &fallback)
 {
@@ -1338,7 +1357,8 @@ QIcon QIcon::fromTheme(const QString &name, const QIcon &fallback)
     \since 4.6
 
     Returns \c true if there is an icon available for \a name in the
-    current icon theme, otherwise returns \c false.
+    current icon theme or any of the fallbacks, as described by
+    fromTheme(), otherwise returns \c false.
 
     \sa themeSearchPaths(), fromTheme(), setThemeName()
 */
@@ -1443,8 +1463,8 @@ QDataStream &operator>>(QDataStream &s, QIcon &icon)
         if (key == "QPixmapIconEngine"_L1) {
             icon.d = new QIconPrivate(new QPixmapIconEngine);
             icon.d->engine->read(s);
-        } else if (key == "QIconLoaderEngine"_L1) {
-            icon.d = new QIconPrivate(new QIconLoaderEngine());
+        } else if (key == "QIconLoaderEngine"_L1 || key == "QThemeIconEngine"_L1) {
+            icon.d = new QIconPrivate(new QThemeIconEngine);
             icon.d->engine->read(s);
         } else {
             const int index = iceLoader()->indexOf(key);
diff --git a/src/gui/image/qiconengine.cpp b/src/gui/image/qiconengine.cpp
index 49528c70..78273bde 100644
--- a/src/gui/image/qiconengine.cpp
+++ b/src/gui/image/qiconengine.cpp
@@ -2,6 +2,7 @@
 // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
 
 #include "qiconengine.h"
+#include "qiconengine_p.h"
 #include "qpainter.h"
 
 QT_BEGIN_NAMESPACE
@@ -307,4 +308,78 @@ QPixmap QIconEngine::scaledPixmap(const QSize &size, QIcon::Mode mode, QIcon::St
     return arg.pixmap;
 }
 
+
+// ------- QProxyIconEngine -----
+
+void QProxyIconEngine::paint(QPainter *painter, const QRect &rect, QIcon::Mode mode, QIcon::State state)
+{
+    proxiedEngine()->paint(painter, rect, mode, state);
+}
+
+QSize QProxyIconEngine::actualSize(const QSize &size, QIcon::Mode mode, QIcon::State state)
+{
+    return proxiedEngine()->actualSize(size, mode, state);
+}
+
+QPixmap QProxyIconEngine::pixmap(const QSize &size, QIcon::Mode mode, QIcon::State state)
+{
+    return proxiedEngine()->pixmap(size, mode, state);
+}
+
+void QProxyIconEngine::addPixmap(const QPixmap &pixmap, QIcon::Mode mode, QIcon::State state)
+{
+    proxiedEngine()->addPixmap(pixmap, mode, state);
+}
+
+void QProxyIconEngine::addFile(const QString &fileName, const QSize &size, QIcon::Mode mode, QIcon::State state)
+{
+    proxiedEngine()->addFile(fileName, size, mode, state);
+}
+
+QString QProxyIconEngine::key() const
+{
+    return proxiedEngine()->key();
+}
+
+QIconEngine *QProxyIconEngine::clone() const
+{
+    return proxiedEngine()->clone();
+}
+
+bool QProxyIconEngine::read(QDataStream &in)
+{
+    return proxiedEngine()->read(in);
+}
+
+bool QProxyIconEngine::write(QDataStream &out) const
+{
+    return proxiedEngine()->write(out);
+}
+
+QList<QSize> QProxyIconEngine::availableSizes(QIcon::Mode mode, QIcon::State state)
+{
+    return proxiedEngine()->availableSizes(mode, state);
+}
+
+QString QProxyIconEngine::iconName()
+{
+    return proxiedEngine()->iconName();
+}
+
+bool QProxyIconEngine::isNull()
+{
+    return proxiedEngine()->isNull();
+}
+
+QPixmap QProxyIconEngine::scaledPixmap(const QSize &size, QIcon::Mode mode, QIcon::State state, qreal scale)
+{
+    return proxiedEngine()->scaledPixmap(size, mode, state, scale);
+}
+
+void QProxyIconEngine::virtual_hook(int id, void *data)
+{
+    proxiedEngine()->virtual_hook(id, data);
+}
+
+
 QT_END_NAMESPACE
diff --git a/src/gui/image/qiconengine_p.h b/src/gui/image/qiconengine_p.h
new file mode 100644
index 00000000..3cf09984
--- /dev/null
+++ b/src/gui/image/qiconengine_p.h
@@ -0,0 +1,59 @@
+// Copyright (C) 2023 The Qt Company Ltd.
+// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
+
+#ifndef QICONENGINE_P_H
+#define QICONENGINE_P_H
+
+#include <QtGui/private/qtguiglobal_p.h>
+
+#ifndef QT_NO_ICON
+//
+//  W A R N I N G
+//  -------------
+//
+// This file is not part of the Qt API.  It exists purely as an
+// implementation detail.  This header file may change from version to
+// version without notice, or even be removed.
+//
+// We mean it.
+//
+
+#include <QtGui/QIcon>
+#include <QtGui/QIconEngine>
+
+QT_BEGIN_NAMESPACE
+
+class QIconEngine;
+
+class QProxyIconEngine : public QIconEngine
+{
+public:
+    void paint(QPainter *painter, const QRect &rect, QIcon::Mode mode, QIcon::State state) override;
+    QSize actualSize(const QSize &size, QIcon::Mode mode, QIcon::State state) override;
+    QPixmap pixmap(const QSize &size, QIcon::Mode mode, QIcon::State state) override;
+
+    void addPixmap(const QPixmap &pixmap, QIcon::Mode mode, QIcon::State state) override;
+    void addFile(const QString &fileName, const QSize &size, QIcon::Mode mode, QIcon::State state) override;
+
+    QString key() const override;
+    QIconEngine *clone() const override;
+    bool read(QDataStream &in) override;
+    bool write(QDataStream &out) const override;
+
+    QList<QSize> availableSizes(QIcon::Mode mode = QIcon::Normal,
+                                    QIcon::State state = QIcon::Off) override;
+
+    QString iconName() override;
+    bool isNull() override;
+    QPixmap scaledPixmap(const QSize &size, QIcon::Mode mode, QIcon::State state, qreal scale) override;
+
+    void virtual_hook(int id, void *data) override;
+protected:
+    virtual QIconEngine *proxiedEngine() const = 0;
+};
+
+QT_END_NAMESPACE
+
+#endif // QT_NO_ICON
+
+#endif // QICONENGINE_P_H
diff --git a/src/gui/image/qiconloader.cpp b/src/gui/image/qiconloader.cpp
index fb702e6b..876c3e0f 100644
--- a/src/gui/image/qiconloader.cpp
+++ b/src/gui/image/qiconloader.cpp
@@ -133,9 +133,10 @@ void QIconLoader::updateSystemTheme()
 
 void QIconLoader::invalidateKey()
 {
+    // Invalidating the key here will result in QThemeIconEngine
+    // recreating the actual engine the next time the icon is used.
+    // We don't need to clear the QIcon cache itself.
     m_themeKey++;
-
-    QIconPrivate::clearIconCache();
 }
 
 QString QIconLoader::themeName() const
@@ -150,7 +151,13 @@ void QIconLoader::setThemeName(const QString &themeName)
 
     qCDebug(lcIconLoader) << "Setting user theme name to" << themeName;
 
+    const bool hadUserTheme = hasUserTheme();
     m_userTheme = themeName;
+    // if we cleared the user theme, then reset search paths as well,
+    // otherwise we'll keep looking in the user-defined search paths for
+    // a system-provide theme, which will never work.
+    if (!hasUserTheme() && hadUserTheme)
+        setThemeSearchPath(systemIconSearchPaths());
     invalidateKey();
 }
 
@@ -242,7 +249,7 @@ QIconCacheGtkReader::QIconCacheGtkReader(const QString &dirName)
     : m_isValid(false)
 {
     QFileInfo info(dirName + "/icon-theme.cache"_L1);
-    if (!info.exists() || info.lastModified() < QFileInfo(dirName).lastModified())
+    if (!info.exists() || info.lastModified(QTimeZone::UTC) < QFileInfo(dirName).lastModified(QTimeZone::UTC))
         return;
     m_file.setFileName(info.absoluteFilePath());
     if (!m_file.open(QFile::ReadOnly))
@@ -257,13 +264,13 @@ QIconCacheGtkReader::QIconCacheGtkReader(const QString &dirName)
     m_isValid = true;
 
     // Check that all the directories are older than the cache
-    auto lastModified = info.lastModified();
+    const QDateTime lastModified = info.lastModified(QTimeZone::UTC);
     quint32 dirListOffset = read32(8);
     quint32 dirListLen = read32(dirListOffset);
     for (uint i = 0; i < dirListLen; ++i) {
         quint32 offset = read32(dirListOffset + 4 + 4 * i);
         if (!m_isValid || offset >= m_size || lastModified < QFileInfo(dirName + u'/'
-                + QString::fromUtf8(reinterpret_cast<const char*>(m_data + offset))).lastModified()) {
+                + QString::fromUtf8(reinterpret_cast<const char*>(m_data + offset))).lastModified(QTimeZone::UTC)) {
             m_isValid = false;
             return;
         }
@@ -351,12 +358,12 @@ QIconTheme::QIconTheme(const QString &themeName)
 
         if (!m_valid) {
             themeIndex.setFileName(themeDir + "/index.theme"_L1);
-            if (themeIndex.exists())
-                m_valid = true;
+            m_valid = themeIndex.exists();
+            qCDebug(lcIconLoader) << "Probing theme file at" << themeIndex.fileName() << m_valid;
         }
     }
 #if QT_CONFIG(settings)
-    if (themeIndex.exists()) {
+    if (m_valid) {
         const QSettings indexReader(themeIndex.fileName(), QSettings::IniFormat);
         const QStringList keys = indexReader.allKeys();
         for (const QString &key : keys) {
@@ -407,9 +414,9 @@ QStringList QIconTheme::parents() const
     if (!fallback.isEmpty())
         result.append(fallback);
 
-    // Ensure that all themes fall back to hicolor
-    if (!result.contains("hicolor"_L1))
-        result.append("hicolor"_L1);
+    // Ensure that all themes fall back to hicolor as the last theme
+    result.removeAll("hicolor"_L1);
+    result.append("hicolor"_L1);
 
     return result;
 }
@@ -425,7 +432,8 @@ QThemeIconInfo QIconLoader::findIconHelper(const QString &themeName,
                                            const QString &iconName,
                                            QStringList &visited) const
 {
-    qCDebug(lcIconLoader) << "Finding icon" << iconName << "in theme" << themeName;
+    qCDebug(lcIconLoader) << "Finding icon" << iconName << "in theme" << themeName
+                          << "skipping" << visited;
 
     QThemeIconInfo info;
     Q_ASSERT(!themeName.isEmpty());
@@ -594,54 +602,136 @@ QThemeIconInfo QIconLoader::loadIcon(const QString &name) const
     return iconInfo;
 }
 
+#ifndef QT_NO_DEBUG_STREAM
+QDebug operator<<(QDebug debug, QIconEngine *engine)
+{
+    QDebugStateSaver saver(debug);
+    debug.nospace();
+    if (engine) {
+        debug.noquote() << engine->key() << "(";
+        debug << static_cast<const void *>(engine);
+        if (!engine->isNull())
+            debug.quote() << ", " << engine->iconName();
+        else
+            debug << ", null";
+        debug << ")";
+    } else {
+        debug << "QIconEngine(nullptr)";
+    }
+    return debug;
+}
+#endif
 
-// -------- Icon Loader Engine -------- //
+QIconEngine *QIconLoader::iconEngine(const QString &iconName) const
+{
+    qCDebug(lcIconLoader) << "Resolving icon engine for icon" << iconName;
 
+    auto *platformTheme = QGuiApplicationPrivate::platformTheme();
+    std::unique_ptr<QIconEngine> iconEngine;
+    if (!hasUserTheme() && platformTheme)
+        iconEngine.reset(platformTheme->createIconEngine(iconName));
+    if (!iconEngine || iconEngine->isNull()) {
+        iconEngine.reset(new QIconLoaderEngine(iconName));
+    }
 
-QIconLoaderEngine::QIconLoaderEngine(const QString& iconName)
-        : m_iconName(iconName), m_key(0)
+    qCDebug(lcIconLoader) << "Resulting engine" << iconEngine.get();
+    return iconEngine.release();
+}
+
+/*!
+    \internal
+    \class QThemeIconEngine
+    \inmodule QtGui
+
+    \brief A named-based icon engine for providing theme icons.
+
+    The engine supports invalidation of prior lookups, e.g. when
+    the platform theme changes or the user sets an explicit icon
+    theme.
+
+    The actual icon lookup is handed over to an engine provided
+    by QIconLoader::iconEngine().
+*/
+
+QThemeIconEngine::QThemeIconEngine(const QString& iconName)
+    : QProxyIconEngine()
+    , m_iconName(iconName)
 {
 }
 
-QIconLoaderEngine::~QIconLoaderEngine() = default;
-
-QIconLoaderEngine::QIconLoaderEngine(const QIconLoaderEngine &other)
-        : QIconEngine(other),
-        m_iconName(other.m_iconName),
-        m_key(0)
+QThemeIconEngine::QThemeIconEngine(const QThemeIconEngine &other)
+    : QProxyIconEngine()
+    , m_iconName(other.m_iconName)
 {
 }
 
-QIconEngine *QIconLoaderEngine::clone() const
+QString QThemeIconEngine::key() const
 {
-    return new QIconLoaderEngine(*this);
+    // Although we proxy the underlying engine, that's an implementation
+    // detail, so from the point of view of QIcon, and in terms of
+    // serialization, we are the one and only theme icon engine.
+    return u"QThemeIconEngine"_s;
 }
 
-bool QIconLoaderEngine::read(QDataStream &in) {
+QIconEngine *QThemeIconEngine::clone() const
+{
+    return new QThemeIconEngine(*this);
+}
+
+bool QThemeIconEngine::read(QDataStream &in) {
     in >> m_iconName;
     return true;
 }
 
-bool QIconLoaderEngine::write(QDataStream &out) const
+bool QThemeIconEngine::write(QDataStream &out) const
 {
     out << m_iconName;
     return true;
 }
 
+QIconEngine *QThemeIconEngine::proxiedEngine() const
+{
+    const auto *iconLoader = QIconLoader::instance();
+    auto mostRecentThemeKey = iconLoader->themeKey();
+    if (mostRecentThemeKey != m_themeKey) {
+        qCDebug(lcIconLoader) << "Theme key" << mostRecentThemeKey << "is different"
+            << "than cached key" << m_themeKey << "for icon" << m_iconName;
+        m_proxiedEngine.reset(iconLoader->iconEngine(m_iconName));
+        m_themeKey = mostRecentThemeKey;
+    }
+    return m_proxiedEngine.get();
+}
+
+/*!
+    \internal
+    \class QIconLoaderEngine
+    \inmodule QtGui
+
+    \brief An icon engine based on icon entries collected by QIconLoader.
+
+    The design and implementation of QIconLoader is based on
+    the XDG icon specification.
+*/
+
+QIconLoaderEngine::QIconLoaderEngine(const QString& iconName)
+    : m_iconName(iconName)
+    , m_info(QIconLoader::instance()->loadIcon(m_iconName))
+{
+}
+
+QIconLoaderEngine::~QIconLoaderEngine() = default;
+
+QIconEngine *QIconLoaderEngine::clone() const
+{
+    Q_UNREACHABLE();
+    return nullptr; // Cannot be cloned
+}
+
 bool QIconLoaderEngine::hasIcon() const
 {
     return !(m_info.entries.empty());
 }
 
-// Lazily load the icon
-void QIconLoaderEngine::ensureLoaded()
-{
-    if (QIconLoader::instance()->themeKey() != m_key) {
-        m_info = QIconLoader::instance()->loadIcon(m_iconName);
-        m_key = QIconLoader::instance()->themeKey();
-    }
-}
-
 void QIconLoaderEngine::paint(QPainter *painter, const QRect &rect,
                              QIcon::Mode mode, QIcon::State state)
 {
@@ -747,8 +837,6 @@ QSize QIconLoaderEngine::actualSize(const QSize &size, QIcon::Mode mode,
     Q_UNUSED(mode);
     Q_UNUSED(state);
 
-    ensureLoaded();
-
     QIconLoaderEngineEntry *entry = entryForSize(m_info, size);
     if (entry) {
         const QIconDirInfo &dir = entry->dir;
@@ -817,8 +905,6 @@ QPixmap ScalableEntry::pixmap(const QSize &size, QIcon::Mode mode, QIcon::State
 QPixmap QIconLoaderEngine::pixmap(const QSize &size, QIcon::Mode mode,
                                  QIcon::State state)
 {
-    ensureLoaded();
-
     QIconLoaderEngineEntry *entry = entryForSize(m_info, size);
     if (entry)
         return entry->pixmap(size, mode, state);
@@ -833,19 +919,16 @@ QString QIconLoaderEngine::key() const
 
 QString QIconLoaderEngine::iconName()
 {
-    ensureLoaded();
     return m_info.iconName;
 }
 
 bool QIconLoaderEngine::isNull()
 {
-    ensureLoaded();
     return m_info.entries.empty();
 }
 
 QPixmap QIconLoaderEngine::scaledPixmap(const QSize &size, QIcon::Mode mode, QIcon::State state, qreal scale)
 {
-    ensureLoaded();
     const int integerScale = qCeil(scale);
     QIconLoaderEngineEntry *entry = entryForSize(m_info, size / integerScale, integerScale);
     return entry ? entry->pixmap(size, mode, state) : QPixmap();
@@ -855,7 +938,7 @@ QList<QSize> QIconLoaderEngine::availableSizes(QIcon::Mode mode, QIcon::State st
 {
     Q_UNUSED(mode);
     Q_UNUSED(state);
-    ensureLoaded();
+
     const qsizetype N = qsizetype(m_info.entries.size());
     QList<QSize> sizes;
     sizes.reserve(N);
diff --git a/src/gui/image/qiconloader_p.h b/src/gui/image/qiconloader_p.h
index 75bd06a5..816fb770 100644
--- a/src/gui/image/qiconloader_p.h
+++ b/src/gui/image/qiconloader_p.h
@@ -22,6 +22,7 @@
 #include <QtGui/QIconEngine>
 #include <QtGui/QPixmapCache>
 #include <private/qicon_p.h>
+#include <private/qiconengine_p.h>
 #include <private/qfactoryloader_p.h>
 #include <QtCore/QHash>
 #include <QtCore/QList>
@@ -86,6 +87,27 @@ struct QThemeIconInfo
     QString iconName;
 };
 
+class QThemeIconEngine : public QProxyIconEngine
+{
+public:
+    QThemeIconEngine(const QString& iconName = QString());
+    QIconEngine *clone() const override;
+    bool read(QDataStream &in) override;
+    bool write(QDataStream &out) const override;
+
+protected:
+    QIconEngine *proxiedEngine() const override;
+
+private:
+    QThemeIconEngine(const QThemeIconEngine &other);
+    QString key() const override;
+
+    QString m_iconName;
+    mutable uint m_themeKey = 0;
+
+    mutable std::unique_ptr<QIconEngine> m_proxiedEngine;
+};
+
 class QIconLoaderEngine : public QIconEngine
 {
 public:
@@ -96,8 +118,6 @@ public:
     QPixmap pixmap(const QSize &size, QIcon::Mode mode, QIcon::State state) override;
     QSize actualSize(const QSize &size, QIcon::Mode mode, QIcon::State state) override;
     QIconEngine *clone() const override;
-    bool read(QDataStream &in) override;
-    bool write(QDataStream &out) const override;
 
     QString iconName() override;
     bool isNull() override;
@@ -107,14 +127,13 @@ public:
     Q_GUI_EXPORT static QIconLoaderEngineEntry *entryForSize(const QThemeIconInfo &info, const QSize &size, int scale = 1);
 
 private:
+    Q_DISABLE_COPY(QIconLoaderEngine)
+
     QString key() const override;
     bool hasIcon() const;
-    void ensureLoaded();
 
-    QIconLoaderEngine(const QIconLoaderEngine &other);
-    QThemeIconInfo m_info;
     QString m_iconName;
-    uint m_key;
+    QThemeIconInfo m_info;
 
     friend class QIconLoader;
 };
@@ -162,6 +181,8 @@ public:
     void ensureInitialized();
     bool hasUserTheme() const { return !m_userTheme.isEmpty(); }
 
+    QIconEngine *iconEngine(const QString &iconName) const;
+
 private:
     QThemeIconInfo findIconHelper(const QString &themeName,
                                   const QString &iconName,
diff --git a/src/gui/image/qpicture.h b/src/gui/image/qpicture.h
index c8b0966a..bc8be6c4 100644
--- a/src/gui/image/qpicture.h
+++ b/src/gui/image/qpicture.h
@@ -6,8 +6,8 @@
 
 #include <QtGui/qtguiglobal.h>
 #include <QtCore/qiodevice.h>
+#include <QtCore/qshareddata.h>
 #include <QtCore/qstringlist.h>
-#include <QtCore/qsharedpointer.h>
 #include <QtGui/qpaintdevice.h>
 
 QT_BEGIN_NAMESPACE
diff --git a/src/gui/image/qpixmap.cpp b/src/gui/image/qpixmap.cpp
index 3efb3eba..8b7de7ac 100644
--- a/src/gui/image/qpixmap.cpp
+++ b/src/gui/image/qpixmap.cpp
@@ -717,7 +717,7 @@ bool QPixmap::load(const QString &fileName, const char *format, Qt::ImageConvers
 
             QString key = "qt_pixmap"_L1
                     % info.absoluteFilePath()
-                    % HexString<uint>(info.lastModified().toSecsSinceEpoch())
+                    % HexString<uint>(info.lastModified(QTimeZone::UTC).toSecsSinceEpoch())
                     % HexString<quint64>(info.size())
                     % HexString<uint>(data ? data->pixelType() : QPlatformPixmap::PixmapType);
 
diff --git a/src/gui/image/qpixmap.h b/src/gui/image/qpixmap.h
index b6fa5da8..5be98be1 100644
--- a/src/gui/image/qpixmap.h
+++ b/src/gui/image/qpixmap.h
@@ -8,8 +8,8 @@
 #include <QtGui/qpaintdevice.h>
 #include <QtGui/qcolor.h>
 #include <QtCore/qnamespace.h>
+#include <QtCore/qshareddata.h>
 #include <QtCore/qstring.h> // char*->QString conversion
-#include <QtCore/qsharedpointer.h>
 #include <QtGui/qimage.h>
 #include <QtGui/qtransform.h>
 
diff --git a/src/gui/image/qpixmap_win.cpp b/src/gui/image/qpixmap_win.cpp
index 5a340aac..24af7636 100644
--- a/src/gui/image/qpixmap_win.cpp
+++ b/src/gui/image/qpixmap_win.cpp
@@ -324,7 +324,7 @@ HBITMAP qt_imageToWinHBITMAP(const QImage &imageIn, int hbitmapFormat)
     It is the caller's responsibility to free the \c HBITMAP data
     after use.
 
-    For usage with with standard GDI calls, such as \c BitBlt(), the image
+    For usage with standard GDI calls, such as \c BitBlt(), the image
     should have the format QImage::Format_RGB32.
 
     When using the resulting HBITMAP for the \c AlphaBlend() GDI function,
diff --git a/src/gui/image/qpixmapcache.cpp b/src/gui/image/qpixmapcache.cpp
index c70aba90..45c9743f 100644
--- a/src/gui/image/qpixmapcache.cpp
+++ b/src/gui/image/qpixmapcache.cpp
@@ -8,6 +8,8 @@
 #include "qthread.h"
 #include "qcoreapplication.h"
 
+using namespace std::chrono_literals;
+
 QT_BEGIN_NAMESPACE
 
 /*!
@@ -182,7 +184,6 @@ public:
     void timerEvent(QTimerEvent *) override;
     bool insert(const QString& key, const QPixmap &pixmap, int cost);
     QPixmapCache::Key insert(const QPixmap &pixmap, int cost);
-    bool replace(const QPixmapCache::Key &key, const QPixmap &pixmap, int cost);
     bool remove(const QString &key);
     bool remove(const QPixmapCache::Key &key);
 
@@ -202,7 +203,8 @@ public:
     bool flushDetachedPixmaps(bool nt);
 
 private:
-    enum { soon_time = 10000, flush_time = 30000 };
+    static constexpr auto soon_time = 10s;
+    static constexpr auto flush_time = 30s;
     int *keyArray;
     int theid;
     int ps;
@@ -216,10 +218,15 @@ QT_BEGIN_INCLUDE_NAMESPACE
 #include "qpixmapcache.moc"
 QT_END_INCLUDE_NAMESPACE
 
-size_t qHash(const QPixmapCache::Key &k, size_t seed)
+/*!
+    size_t QPixmapCache::qHash(const Key &key, size_t seed = 0);
+    \since 6.6
+
+    Returns the hash value for the \a key, using \a seed to seed the calculation.
+*/
+size_t QPixmapCache::Key::hash(size_t seed) const noexcept
 {
-    const auto *keyData = QPMCache::get(k);
-    return qHash(keyData ? keyData->key : 0, seed);
+    return qHash(this->d ? this->d->key : 0, seed);
 }
 
 QPMCache::QPMCache()
@@ -310,6 +317,7 @@ QPixmapCache::Key QPMCache::insert(const QPixmap &pixmap, int cost)
 {
     QPixmapCache::Key cacheKey = createKey(); // invalidated by ~QPixmapCacheEntry on failed insert
     bool success = QCache<QPixmapCache::Key, QPixmapCacheEntry>::insert(cacheKey, new QPixmapCacheEntry(cacheKey, pixmap), cost);
+    Q_ASSERT(success || !cacheKey.isValid());
     if (success) {
         if (!theid) {
             theid = startTimer(flush_time);
@@ -319,25 +327,6 @@ QPixmapCache::Key QPMCache::insert(const QPixmap &pixmap, int cost)
     return cacheKey;
 }
 
-bool QPMCache::replace(const QPixmapCache::Key &key, const QPixmap &pixmap, int cost)
-{
-    Q_ASSERT(key.isValid());
-    //If for the same key we had already an entry so we should delete the pixmap and use the new one
-    QCache<QPixmapCache::Key, QPixmapCacheEntry>::remove(key);
-
-    QPixmapCache::Key cacheKey = createKey();
-
-    bool success = QCache<QPixmapCache::Key, QPixmapCacheEntry>::insert(cacheKey, new QPixmapCacheEntry(cacheKey, pixmap), cost);
-    if (success) {
-        if (!theid) {
-            theid = startTimer(flush_time);
-            t = false;
-        }
-        const_cast<QPixmapCache::Key&>(key) = cacheKey;
-    }
-    return success;
-}
-
 bool QPMCache::remove(const QString &key)
 {
     const auto cacheKey = cacheKeys.take(key);
@@ -440,7 +429,7 @@ QPixmapCacheEntry::~QPixmapCacheEntry()
 
 bool QPixmapCache::find(const QString &key, QPixmap *pixmap)
 {
-    if (!qt_pixmapcache_thread_test())
+    if (key.isEmpty() || !qt_pixmapcache_thread_test())
         return false;
     QPixmap *ptr = pm_cache()->object(key);
     if (ptr && pixmap)
@@ -492,7 +481,7 @@ bool QPixmapCache::find(const Key &key, QPixmap *pixmap)
 
 bool QPixmapCache::insert(const QString &key, const QPixmap &pixmap)
 {
-    if (!qt_pixmapcache_thread_test())
+    if (key.isEmpty() || !qt_pixmapcache_thread_test())
         return false;
     return pm_cache()->insert(key, pixmap, cost(pixmap));
 }
@@ -519,24 +508,25 @@ QPixmapCache::Key QPixmapCache::insert(const QPixmap &pixmap)
     return pm_cache()->insert(pixmap, cost(pixmap));
 }
 
+#if QT_DEPRECATED_SINCE(6, 6)
 /*!
+    \fn bool QPixmapCache::replace(const Key &key, const QPixmap &pixmap)
+
+    \deprecated [6.6] Use \c{remove(key); key = insert(pixmap);} instead.
+
     Replaces the pixmap associated with the given \a key with the \a pixmap
     specified. Returns \c true if the \a pixmap has been correctly inserted into
     the cache; otherwise returns \c false.
 
+    The passed \a key is updated to reference \a pixmap now. Other copies of \a
+    key, if any, still refer to the old pixmap, which is, however, removed from
+    the cache by this function.
+
     \sa setCacheLimit(), insert()
 
     \since 4.6
 */
-bool QPixmapCache::replace(const Key &key, const QPixmap &pixmap)
-{
-    if (!qt_pixmapcache_thread_test())
-        return false;
-    //The key is not valid anymore, a flush happened before probably
-    if (!key.d || !key.d->isValid)
-        return false;
-    return pm_cache()->replace(key, pixmap, cost(pixmap));
-}
+#endif // QT_DEPRECATED_SINCE(6, 6)
 
 /*!
     Returns the cache limit (in kilobytes).
@@ -573,7 +563,7 @@ void QPixmapCache::setCacheLimit(int n)
 */
 void QPixmapCache::remove(const QString &key)
 {
-    if (!qt_pixmapcache_thread_test())
+    if (key.isEmpty() || !qt_pixmapcache_thread_test())
         return;
     pm_cache()->remove(key);
 }
diff --git a/src/gui/image/qpixmapcache.h b/src/gui/image/qpixmapcache.h
index 433890c6..72ee1b79 100644
--- a/src/gui/image/qpixmapcache.h
+++ b/src/gui/image/qpixmapcache.h
@@ -31,6 +31,10 @@ public:
         bool isValid() const noexcept;
 
     private:
+        friend size_t qHash(const QPixmapCache::Key &k, size_t seed = 0) noexcept
+        { return k.hash(seed); }
+        size_t hash(size_t seed) const noexcept;
+
         KeyData *d;
         friend class QPMCache;
         friend class QPixmapCache;
@@ -42,13 +46,30 @@ public:
     static bool find(const Key &key, QPixmap *pixmap);
     static bool insert(const QString &key, const QPixmap &pixmap);
     static Key insert(const QPixmap &pixmap);
+#if QT_DEPRECATED_SINCE(6, 6)
+    QT_DEPRECATED_VERSION_X_6_6("Use remove(key), followed by key = insert(pixmap).")
+    QT_GUI_INLINE_SINCE(6, 6)
     static bool replace(const Key &key, const QPixmap &pixmap);
+#endif
     static void remove(const QString &key);
     static void remove(const Key &key);
     static void clear();
 };
 Q_DECLARE_SHARED(QPixmapCache::Key)
 
+#if QT_DEPRECATED_SINCE(6, 6)
+#if QT_GUI_INLINE_IMPL_SINCE(6, 6)
+bool QPixmapCache::replace(const Key &key, const QPixmap &pixmap)
+{
+    if (!key.isValid())
+        return false;
+    remove(key);
+    const_cast<Key&>(key) = insert(pixmap);
+    return key.isValid();
+}
+#endif // QT_GUI_INLINE_IMPL_SINCE(6, 6)
+#endif // QT_DEPRECATED_SINCE(6, 6)
+
 QT_END_NAMESPACE
 
 #endif // QPIXMAPCACHE_H
diff --git a/src/gui/image/qpixmapcache_p.h b/src/gui/image/qpixmapcache_p.h
index c9a90563..43c4d978 100644
--- a/src/gui/image/qpixmapcache_p.h
+++ b/src/gui/image/qpixmapcache_p.h
@@ -23,8 +23,6 @@
 
 QT_BEGIN_NAMESPACE
 
-size_t qHash(const QPixmapCache::Key &k, size_t seed = 0);
-
 class QPixmapCache::KeyData
 {
 public:
diff --git a/src/gui/itemmodels/qfileinfogatherer.cpp b/src/gui/itemmodels/qfileinfogatherer.cpp
index 1b88b3e0..0e0a3b11 100644
--- a/src/gui/itemmodels/qfileinfogatherer.cpp
+++ b/src/gui/itemmodels/qfileinfogatherer.cpp
@@ -83,7 +83,7 @@ void QFileInfoGatherer::driveRemoved()
     const QFileInfoList driveInfoList = QDir::drives();
     for (const QFileInfo &fi : driveInfoList)
         drives.append(translateDriveName(fi));
-    newListOfFiles(QString(), drives);
+    emit newListOfFiles(QString(), drives);
 }
 
 bool QFileInfoGatherer::resolveSymlinks() const
diff --git a/src/gui/itemmodels/qfileinfogatherer_p.h b/src/gui/itemmodels/qfileinfogatherer_p.h
index c8a56a33..e4b2bc88 100644
--- a/src/gui/itemmodels/qfileinfogatherer_p.h
+++ b/src/gui/itemmodels/qfileinfogatherer_p.h
@@ -51,7 +51,7 @@ public:
        return mFileInfo == fileInfo.mFileInfo
        && displayType == fileInfo.displayType
        && permissions() == fileInfo.permissions()
-       && lastModified() == fileInfo.lastModified();
+       && lastModified(QTimeZone::UTC) == fileInfo.lastModified(QTimeZone::UTC);
     }
 
 #ifndef QT_NO_FSFILEENGINE
@@ -95,8 +95,8 @@ public:
         return mFileInfo;
     }
 
-    QDateTime lastModified() const {
-        return mFileInfo.lastModified();
+    QDateTime lastModified(const QTimeZone &tz) const {
+        return mFileInfo.lastModified(tz);
     }
 
     qint64 size() const {
diff --git a/src/gui/itemmodels/qfilesystemmodel.cpp b/src/gui/itemmodels/qfilesystemmodel.cpp
index cf9afa21..3c52f27f 100644
--- a/src/gui/itemmodels/qfilesystemmodel.cpp
+++ b/src/gui/itemmodels/qfilesystemmodel.cpp
@@ -143,7 +143,7 @@ QFileInfo QFileSystemModel::fileInfo(const QModelIndex &index) const
     \fn void QFileSystemModel::fileRenamed(const QString &path, const QString &oldName, const QString &newName)
 
     This signal is emitted whenever a file with the \a oldName is successfully
-    renamed to \a newName.  The file is located in in the directory \a path.
+    renamed to \a newName.  The file is located in the directory \a path.
 */
 
 /*!
@@ -529,14 +529,38 @@ QString QFileSystemModel::type(const QModelIndex &index) const
 }
 
 /*!
-    Returns the date and time when \a index was last modified.
+    Returns the date and time (in local time) when \a index was last modified.
+
+    This is an overloaded function, equivalent to calling:
+    \code
+    lastModified(index, QTimeZone::LocalTime);
+    \endcode
+
+    If \a index is invalid, a default constructed QDateTime is returned.
  */
 QDateTime QFileSystemModel::lastModified(const QModelIndex &index) const
+{
+    return lastModified(index, QTimeZone::LocalTime);
+}
+
+/*!
+    \since 6.6
+    Returns the date and time, in the time zone \a tz, when
+    \a index was last modified.
+
+    Typical arguments for \a tz are \c QTimeZone::UTC or \c QTimeZone::LocalTime.
+    UTC does not require any conversion from the time returned by the native file
+    system API, therefore getting the time in UTC is potentially faster. LocalTime
+    is typically chosen if the time is shown to the user.
+
+    If \a index is invalid, a default constructed QDateTime is returned.
+ */
+QDateTime QFileSystemModel::lastModified(const QModelIndex &index, const QTimeZone &tz) const
 {
     Q_D(const QFileSystemModel);
     if (!index.isValid())
         return QDateTime();
-    return d->node(index)->lastModified();
+    return d->node(index)->lastModified(tz);
 }
 
 /*!
@@ -765,7 +789,7 @@ QString QFileSystemModelPrivate::time(const QModelIndex &index) const
     if (!index.isValid())
         return QString();
 #if QT_CONFIG(datestring)
-    return QLocale::system().toString(node(index)->lastModified(), QLocale::ShortFormat);
+    return QLocale::system().toString(node(index)->lastModified(QTimeZone::LocalTime), QLocale::ShortFormat);
 #else
     Q_UNUSED(index);
     return QString();
@@ -1031,10 +1055,12 @@ public:
         }
         case QFileSystemModelPrivate::TimeColumn:
         {
-            if (l->lastModified() == r->lastModified())
+            const QDateTime left = l->lastModified(QTimeZone::UTC);
+            const QDateTime right = r->lastModified(QTimeZone::UTC);
+            if (left == right)
                 return naturalCompare.compare(l->fileName, r->fileName) < 0;
 
-            return l->lastModified() < r->lastModified();
+            return left < right;
         }
         }
         Q_ASSERT(false);
@@ -2059,8 +2085,8 @@ void QFileSystemModelPrivate::init()
 #if QT_CONFIG(filesystemwatcher)
     q->connect(&fileInfoGatherer, SIGNAL(newListOfFiles(QString,QStringList)),
                q, SLOT(_q_directoryChanged(QString,QStringList)));
-    q->connect(&fileInfoGatherer, SIGNAL(updates(QString, QList<QPair<QString, QFileInfo>>)), q,
-               SLOT(_q_fileSystemChanged(QString, QList<QPair<QString, QFileInfo>>)));
+    q->connect(&fileInfoGatherer, SIGNAL(updates(QString,QList<std::pair<QString,QFileInfo>>)), q,
+               SLOT(_q_fileSystemChanged(QString,QList<std::pair<QString,QFileInfo>>)));
     q->connect(&fileInfoGatherer, SIGNAL(nameResolved(QString,QString)),
             q, SLOT(_q_resolvedName(QString,QString)));
     q->connect(&fileInfoGatherer, SIGNAL(directoryLoaded(QString)),
diff --git a/src/gui/itemmodels/qfilesystemmodel.h b/src/gui/itemmodels/qfilesystemmodel.h
index d7bdf825..2aa81923 100644
--- a/src/gui/itemmodels/qfilesystemmodel.h
+++ b/src/gui/itemmodels/qfilesystemmodel.h
@@ -113,7 +113,9 @@ public:
     bool isDir(const QModelIndex &index) const;
     qint64 size(const QModelIndex &index) const;
     QString type(const QModelIndex &index) const;
+
     QDateTime lastModified(const QModelIndex &index) const;
+    QDateTime lastModified(const QModelIndex &index, const QTimeZone &tz) const;
 
     QModelIndex mkdir(const QModelIndex &parent, const QString &name);
     bool rmdir(const QModelIndex &index);
diff --git a/src/gui/itemmodels/qfilesystemmodel_p.h b/src/gui/itemmodels/qfilesystemmodel_p.h
index cfcf63a6..9198c2f5 100644
--- a/src/gui/itemmodels/qfilesystemmodel_p.h
+++ b/src/gui/itemmodels/qfilesystemmodel_p.h
@@ -90,7 +90,7 @@ public:
 
         inline qint64 size() const { if (info && !info->isDir()) return info->size(); return 0; }
         inline QString type() const { if (info) return info->displayType; return QLatin1StringView(""); }
-        inline QDateTime lastModified() const { if (info) return info->lastModified(); return QDateTime(); }
+        inline QDateTime lastModified(const QTimeZone &tz) const { return info ? info->lastModified(tz) : QDateTime(); }
         inline QFile::Permissions permissions() const { if (info) return info->permissions(); return { }; }
         inline bool isReadable() const { return ((permissions() & QFile::ReadUser) != 0); }
         inline bool isWritable() const { return ((permissions() & QFile::WriteUser) != 0); }
diff --git a/src/gui/kernel/qaction.cpp b/src/gui/kernel/qaction.cpp
index dccdb1ac..c67cfd53 100644
--- a/src/gui/kernel/qaction.cpp
+++ b/src/gui/kernel/qaction.cpp
@@ -171,9 +171,7 @@ QObject *QActionPrivate::menu() const
 
     Once a QAction has been created, it should be added to the relevant
     menu and toolbar, then connected to the slot which will perform
-    the action. For example:
-
-    \snippet ../widgets/mainwindows/mdi/mainwindow.cpp qaction setup
+    the action.
 
     Actions are added to widgets using QWidget::addAction() or
     QGraphicsWidget::addAction(). Note that an action must be added to a
@@ -186,7 +184,7 @@ QObject *QActionPrivate::menu() const
     use as menu items.
 
 
-    \sa QMenu, QToolBar, {Qt Widgets - Application Example}
+    \sa QMenu, QToolBar
 */
 
 /*!
diff --git a/src/gui/kernel/qevent.cpp b/src/gui/kernel/qevent.cpp
index d2bf905e..19fdcdc9 100644
--- a/src/gui/kernel/qevent.cpp
+++ b/src/gui/kernel/qevent.cpp
@@ -1440,12 +1440,13 @@ Q_IMPL_EVENT_COMMON(QKeyEvent)
 
     Returns the Unicode text that this key generated.
 
-    Return values when modifier keys such as
-    Shift, Control, Alt, and Meta are pressed
-    differ among platforms and could return an empty string.
+    The text is not limited to the printable range of Unicode
+    code points, and may include control characters or characters
+    from other Unicode categories, including QChar::Other_PrivateUse.
 
-    \note \l key() will always return a valid value,
-    independent of modifier keys.
+    The text may also be empty, for example when modifier keys such as
+    Shift, Control, Alt, and Meta are pressed (depending on the platform).
+    The key() function will always return a valid value.
 
     \sa Qt::WA_KeyCompression
 */
@@ -3589,10 +3590,15 @@ Q_IMPL_EVENT_COMMON(QShowEvent)
 
     \snippet qfileopenevent/Info.plist Custom Info.plist
 
-    The following implementation of a QApplication subclass prints the path to
-    the file that was, for example, dropped on the Dock icon of the application.
+    The following implementation of a QApplication subclass shows how to handle
+    QFileOpenEvent to open the file that was, for example, dropped on the Dock
+    icon of the application.
 
     \snippet qfileopenevent/main.cpp QApplication subclass
+
+    Note how \c{QFileOpenEvent::file()} is not guaranteed to be the name of a
+    local file that can be opened using QFile. The contents of the string depend
+    on the source application.
 */
 
 /*!
@@ -3620,19 +3626,23 @@ Q_IMPL_EVENT_COMMON(QFileOpenEvent)
 /*!
     \fn QString QFileOpenEvent::file() const
 
-    Returns the file that is being opened.
+    Returns the name of the file that the application should open.
+
+    This is not guaranteed to be the path to a local file.
 */
 
 /*!
     \fn QUrl QFileOpenEvent::url() const
 
-    Returns the url that is being opened.
+    Returns the url that the application should open.
 
     \since 4.6
 */
 
+#if QT_DEPRECATED_SINCE(6, 6)
 /*!
     \fn bool QFileOpenEvent::openFile(QFile &file, QIODevice::OpenMode flags) const
+    \deprecated [6.6] interpret the string returned by file()
 
     Opens a QFile on the \a file referenced by this event in the mode specified
     by \a flags. Returns \c true if successful; otherwise returns \c false.
@@ -3647,6 +3657,7 @@ bool QFileOpenEvent::openFile(QFile &file, QIODevice::OpenMode flags) const
     file.setFileName(m_file);
     return file.open(flags);
 }
+#endif
 
 #ifndef QT_NO_TOOLBAR
 /*!
diff --git a/src/gui/kernel/qevent.h b/src/gui/kernel/qevent.h
index a3fd09d9..900524d2 100644
--- a/src/gui/kernel/qevent.h
+++ b/src/gui/kernel/qevent.h
@@ -852,7 +852,10 @@ public:
 
     inline QString file() const { return m_file; }
     QUrl url() const { return m_url; }
+#if QT_DEPRECATED_SINCE(6, 6)
+    QT_DEPRECATED_VERSION_X_6_6("Interpret the string returned by file()")
     bool openFile(QFile &file, QIODevice::OpenMode flags) const;
+#endif
 private:
     QString m_file;
     QUrl m_url;
diff --git a/src/gui/kernel/qguiapplication.cpp b/src/gui/kernel/qguiapplication.cpp
index fb973a96..c5f03719 100644
--- a/src/gui/kernel/qguiapplication.cpp
+++ b/src/gui/kernel/qguiapplication.cpp
@@ -1248,10 +1248,6 @@ static void init_platform(const QString &pluginNamesWithArguments, const QString
         QGuiApplicationPrivate::platform_integration = QPlatformIntegrationFactory::create(name, arguments, argc, argv, platformPluginPath);
         if (Q_UNLIKELY(!QGuiApplicationPrivate::platform_integration)) {
             if (availablePlugins.contains(name)) {
-                if (name == QStringLiteral("xcb") && QVersionNumber::compare(QLibraryInfo::version(), QVersionNumber(6, 5, 0)) >= 0) {
-                    qCWarning(lcQpaPluginLoading).nospace().noquote()
-                            << "From 6.5.0, xcb-cursor0 or libxcb-cursor0 is needed to load the Qt xcb platform plugin.";
-                }
                 qCInfo(lcQpaPluginLoading).nospace().noquote()
                         << "Could not load the Qt platform plugin \"" << name << "\" in \""
                         << QDir::toNativeSeparators(platformPluginPath) << "\" even though it was found.";
@@ -1353,7 +1349,7 @@ static void init_platform(const QString &pluginNamesWithArguments, const QString
     const auto platformIntegration = QGuiApplicationPrivate::platformIntegration();
     fontSmoothingGamma = platformIntegration->styleHint(QPlatformIntegration::FontSmoothingGamma).toReal();
     QCoreApplication::setAttribute(Qt::AA_DontShowShortcutsInContextMenus,
-        !platformIntegration->styleHint(QPlatformIntegration::ShowShortcutsInContextMenus).toBool());
+        !QGuiApplication::styleHints()->showShortcutsInContextMenus());
 }
 
 static void init_plugins(const QList<QByteArray> &pluginList)
@@ -2091,6 +2087,9 @@ void Q_TRACE_INSTRUMENT(qtgui) QGuiApplicationPrivate::processWindowSystemEvent(
     case QWindowSystemInterfacePrivate::WindowScreenChanged:
         QGuiApplicationPrivate::processWindowScreenChangedEvent(static_cast<QWindowSystemInterfacePrivate::WindowScreenChangedEvent *>(e));
         break;
+    case QWindowSystemInterfacePrivate::WindowDevicePixelRatioChanged:
+        QGuiApplicationPrivate::processWindowDevicePixelRatioChangedEvent(static_cast<QWindowSystemInterfacePrivate::WindowDevicePixelRatioChangedEvent *>(e));
+        break;
     case QWindowSystemInterfacePrivate::SafeAreaMarginsChanged:
         QGuiApplicationPrivate::processSafeAreaMarginsChangedEvent(static_cast<QWindowSystemInterfacePrivate::SafeAreaMarginsChangedEvent *>(e));
         break;
@@ -2592,28 +2591,28 @@ void QGuiApplicationPrivate::processWindowStateChangedEvent(QWindowSystemInterfa
 
 void QGuiApplicationPrivate::processWindowScreenChangedEvent(QWindowSystemInterfacePrivate::WindowScreenChangedEvent *wse)
 {
-    if (QWindow *window  = wse->window.data()) {
-        if (window->screen() == wse->screen.data())
-            return;
-        if (QWindow *topLevelWindow = window->d_func()->topLevelWindow(QWindow::ExcludeTransients)) {
-            if (QScreen *screen = wse->screen.data())
-                topLevelWindow->d_func()->setTopLevelScreen(screen, false /* recreate */);
-            else // Fall back to default behavior, and try to find some appropriate screen
-                topLevelWindow->setScreen(nullptr);
-        }
+    QWindow *window = wse->window.data();
+    if (!window)
+        return;
 
-        // We may have changed scaling; trigger resize event if needed,
-        // except on Windows, where we send resize events during WM_DPICHANGED
-        // event handling. FIXME: unify DPI change handling across all platforms.
-#ifndef Q_OS_WIN
-        if (window->handle()) {
-            QWindowSystemInterfacePrivate::GeometryChangeEvent gce(window, QHighDpi::fromNativePixels(window->handle()->geometry(), window));
-            processGeometryChangeEvent(&gce);
-        }
-#endif
+    if (window->screen() == wse->screen.data())
+        return;
+
+    if (QWindow *topLevelWindow = window->d_func()->topLevelWindow(QWindow::ExcludeTransients)) {
+        if (QScreen *screen = wse->screen.data())
+            topLevelWindow->d_func()->setTopLevelScreen(screen, false /* recreate */);
+        else // Fall back to default behavior, and try to find some appropriate screen
+            topLevelWindow->setScreen(nullptr);
     }
 }
 
+void QGuiApplicationPrivate::processWindowDevicePixelRatioChangedEvent(QWindowSystemInterfacePrivate::WindowDevicePixelRatioChangedEvent *wde)
+{
+    if (wde->window.isNull())
+        return;
+    QWindowPrivate::get(wde->window)->updateDevicePixelRatio();
+}
+
 void QGuiApplicationPrivate::processSafeAreaMarginsChangedEvent(QWindowSystemInterfacePrivate::SafeAreaMarginsChangedEvent *wse)
 {
     if (wse->window.isNull())
@@ -3199,6 +3198,10 @@ void QGuiApplicationPrivate::processScreenLogicalDotsPerInchChange(QWindowSystem
         s->d_func()->updateGeometry();
     }
 
+    for (QWindow *window : QGuiApplication::allWindows())
+        if (window->screen() == e->screen)
+            QWindowPrivate::get(window)->updateDevicePixelRatio();
+
     resetCachedDevicePixelRatio();
 }
 
diff --git a/src/gui/kernel/qguiapplication_p.h b/src/gui/kernel/qguiapplication_p.h
index 7abd65a1..c96cbdd0 100644
--- a/src/gui/kernel/qguiapplication_p.h
+++ b/src/gui/kernel/qguiapplication_p.h
@@ -116,6 +116,7 @@ public:
     static void processActivatedEvent(QWindowSystemInterfacePrivate::ActivatedWindowEvent *e);
     static void processWindowStateChangedEvent(QWindowSystemInterfacePrivate::WindowStateChangedEvent *e);
     static void processWindowScreenChangedEvent(QWindowSystemInterfacePrivate::WindowScreenChangedEvent *e);
+    static void processWindowDevicePixelRatioChangedEvent(QWindowSystemInterfacePrivate::WindowDevicePixelRatioChangedEvent *e);
 
     static void processSafeAreaMarginsChangedEvent(QWindowSystemInterfacePrivate::SafeAreaMarginsChangedEvent *e);
 
@@ -419,7 +420,7 @@ struct Q_GUI_EXPORT QWindowsApplication
     virtual QVariant gpu() const = 0; // internal, used by qtdiag
     virtual QVariant gpuList() const = 0;
 
-    virtual void lightSystemPalette(QPalette &pal) const = 0;
+    virtual void populateLightSystemPalette(QPalette &pal) const = 0;
 };
 #endif // Q_OS_WIN
 
diff --git a/src/gui/kernel/qhighdpiscaling.cpp b/src/gui/kernel/qhighdpiscaling.cpp
index bbd8f8a8..a0e1b48d 100644
--- a/src/gui/kernel/qhighdpiscaling.cpp
+++ b/src/gui/kernel/qhighdpiscaling.cpp
@@ -494,7 +494,8 @@ void QHighDpiScaling::updateHighDpiScaling()
         qCDebug(lcHighDpi) << "Applying screen factors" << m_screenFactors;
         int i = -1;
         const auto screens = QGuiApplication::screens();
-        for (const auto &[name, factor] : m_screenFactors) {
+        for (const auto &[name, rawFactor]: m_screenFactors) {
+            const qreal factor = roundScaleFactor(rawFactor);
             ++i;
             if (name.isNull()) {
                 if (i < screens.size())
@@ -540,15 +541,17 @@ void QHighDpiScaling::setGlobalFactor(qreal factor)
     if (!QGuiApplication::allWindows().isEmpty())
         qWarning("QHighDpiScaling::setFactor: Should only be called when no windows exist.");
 
+    const auto screens = QGuiApplication::screens();
+
+    std::vector<QScreenPrivate::UpdateEmitter> updateEmitters;
+    for (QScreen *screen : screens)
+        updateEmitters.emplace_back(screen);
+
     m_globalScalingActive = !qFuzzyCompare(factor, qreal(1));
     m_factor = m_globalScalingActive ? factor : qreal(1);
     m_active = m_globalScalingActive || m_screenFactorSet || m_platformPluginDpiScalingActive ;
-    const auto screens = QGuiApplication::screens();
     for (QScreen *screen : screens)
         screen->d_func()->updateGeometry();
-
-    // FIXME: The geometry has been updated based on the new scale factor,
-    // but we don't emit any geometry change signals for the screens.
 }
 
 static const char scaleFactorProperty[] = "_q_scaleFactor";
@@ -565,6 +568,8 @@ void QHighDpiScaling::setScreenFactor(QScreen *screen, qreal factor)
         m_active = true;
     }
 
+    QScreenPrivate::UpdateEmitter updateEmitter(screen);
+
     // Prefer associating the factor with screen name over the object
     // since the screen object may be deleted on screen disconnects.
     const QString name = screen->name();
@@ -573,9 +578,7 @@ void QHighDpiScaling::setScreenFactor(QScreen *screen, qreal factor)
     else
         QHighDpiScaling::m_namedScreenScaleFactors.insert(name, factor);
 
-    // hack to force re-evaluation of screen geometry
-    if (screen->handle())
-        screen->d_func()->setPlatformScreen(screen->handle()); // updates geometries based on scale factor
+    screen->d_func()->updateGeometry();
 }
 
 QPoint QHighDpiScaling::mapPositionToNative(const QPoint &pos, const QPlatformScreen *platformScreen)
diff --git a/src/gui/kernel/qopenglcontext.cpp b/src/gui/kernel/qopenglcontext.cpp
index a018f867..1dab68e5 100644
--- a/src/gui/kernel/qopenglcontext.cpp
+++ b/src/gui/kernel/qopenglcontext.cpp
@@ -69,6 +69,7 @@ QOpenGLContext *qt_gl_global_share_context()
 
 /*!
     \class QOpenGLContext
+    \ingroup painting-3D
     \inmodule QtGui
     \since 5.0
     \brief The QOpenGLContext class represents a native OpenGL context, enabling
diff --git a/src/gui/kernel/qpalette.cpp b/src/gui/kernel/qpalette.cpp
index 4abbcd5e..785572e7 100644
--- a/src/gui/kernel/qpalette.cpp
+++ b/src/gui/kernel/qpalette.cpp
@@ -16,12 +16,17 @@ static int qt_palette_count = 1;
 
 static constexpr QPalette::ResolveMask colorRoleOffset(QPalette::ColorGroup colorGroup)
 {
-    return qToUnderlying(QPalette::NColorRoles) * qToUnderlying(colorGroup);
+    // Exclude NoRole; that bit is used for Accent
+    return (qToUnderlying(QPalette::NColorRoles) - 1) * qToUnderlying(colorGroup);
 }
 
 static constexpr QPalette::ResolveMask bitPosition(QPalette::ColorGroup colorGroup,
                                                    QPalette::ColorRole colorRole)
 {
+    // Map Accent into NoRole for resolving purposes
+    if (colorRole == QPalette::Accent)
+        colorRole = QPalette::NoRole;
+
     return colorRole + colorRoleOffset(colorGroup);
 }
 
@@ -100,6 +105,24 @@ static void qt_placeholder_from_text(QPalette &pal, int alpha = 50)
     }
 }
 
+static void qt_ensure_default_accent_color(QPalette &pal)
+{
+    // have a lighter/darker factor handy, depending on dark/light heuristics
+    const int lighter = pal.base().color().lightness() > pal.text().color().lightness() ? 130 : 70;
+
+    // Act only for color groups where no accent color is set
+    for (int i = 0; i < QPalette::NColorGroups; ++i) {
+        const QPalette::ColorGroup group = static_cast<QPalette::ColorGroup>(i);
+        if (!pal.isBrushSet(group, QPalette::Accent)) {
+            // Default to highlight if available, otherwise use a shade of base
+            const QBrush accentBrush = pal.isBrushSet(group, QPalette::Highlight)
+                                     ? pal.brush(group, QPalette::Highlight)
+                                     : pal.brush(group, QPalette::Base).color().lighter(lighter);
+            pal.setBrush(group, QPalette::Accent, accentBrush);
+        }
+    }
+}
+
 static void qt_palette_from_color(QPalette &pal, const QColor &button)
 {
     int h, s, v;
@@ -124,6 +147,7 @@ static void qt_palette_from_color(QPalette &pal, const QColor &button)
                       whiteBrush, buttonBrush, buttonBrush);
 
     qt_placeholder_from_text(pal);
+    qt_ensure_default_accent_color(pal);
 }
 
 /*!
@@ -324,6 +348,14 @@ static void qt_palette_from_color(QPalette &pal, const QColor &button)
     \sa ColorRole, brush()
 */
 
+/*!
+    \fn const QBrush & QPalette::accent() const
+
+    Returns the accent brush of the current color group.
+
+    \sa ColorRole, brush()
+*/
+
 /*!
     \fn const QBrush & QPalette::link() const
 
@@ -524,6 +556,13 @@ static void qt_palette_from_color(QPalette &pal, const QColor &button)
                        item. By default, the highlight color is
                        Qt::darkBlue.
 
+    \value [since 6.6] Accent
+                       A color that typically contrasts or complements
+                       Base, Window and Button colors. It usually represents
+                       the users' choice of desktop personalisation.
+                       Styling of interactive components is a typical use case.
+                       Unless explicitly set, it defaults to Highlight.
+
     \value HighlightedText  A text color that contrasts with \c Highlight.
                             By default, the highlighted text color is Qt::white.
 
@@ -613,6 +652,7 @@ QPalette::QPalette(const QBrush &windowText, const QBrush &button,
                   base, window);
 
     qt_placeholder_from_text(*this);
+    qt_ensure_default_accent_color(*this);
 }
 
 
@@ -670,6 +710,7 @@ QPalette::QPalette(const QColor &button, const QColor &window)
                   whiteBrush, baseBrush, windowBrush);
 
     qt_placeholder_from_text(*this);
+    qt_ensure_default_accent_color(*this);
 }
 
 /*!
@@ -837,6 +878,10 @@ void QPalette::setBrush(ColorGroup cg, ColorRole cr, const QBrush &b)
 */
 bool QPalette::isBrushSet(ColorGroup cg, ColorRole cr) const
 {
+    // NoRole has no resolve mask and should never be set anyway
+    if (cr == NoRole)
+        return false;
+
     if (cg == Current)
         cg = currentGroup;
 
@@ -885,8 +930,11 @@ void QPalette::detach()
     Returns \c true (usually quickly) if this palette is equal to \a p;
     otherwise returns \c false (slowly).
 
-    \note The current ColorGroup is not taken into account when
-    comparing palettes
+    \note The following is not taken into account when comparing palettes:
+    \list
+    \li the \c current ColorGroup
+    \li ColorRole NoRole \since 6.6
+    \endlist
 
     \sa operator!=()
 */
@@ -896,6 +944,9 @@ bool QPalette::operator==(const QPalette &p) const
         return true;
     for(int grp = 0; grp < (int)NColorGroups; grp++) {
         for(int role = 0; role < (int)NColorRoles; role++) {
+            // Dont't verify NoRole, because it has no resolve bit
+            if (role == NoRole)
+                continue;
             if (d->data->br[grp][role] != p.d->data->br[grp][role])
                 return false;
         }
@@ -979,6 +1030,10 @@ QPalette QPalette::resolve(const QPalette &other) const
     palette.detach();
 
     for (int role = 0; role < int(NColorRoles); ++role) {
+        // Don't resolve NoRole, its bits are needed for Accent (see bitPosition)
+        if (role == NoRole)
+            continue;
+
         for (int grp = 0; grp < int(NColorGroups); ++grp) {
             if (!(d->resolveMask & (ResolveMask(1) << bitPosition(ColorGroup(grp), ColorRole(role))))) {
                 palette.d->data.detach();
@@ -1054,6 +1109,9 @@ QDataStream &operator<<(QDataStream &s, const QPalette &p)
                 max = QPalette::AlternateBase + 1;
             else if (s.version() <= QDataStream::Qt_5_11)
                 max = QPalette::ToolTipText + 1;
+            else if (s.version() <= QDataStream::Qt_6_5)
+                max = QPalette::PlaceholderText + 1;
+
             for (int r = 0; r < max; r++)
                 s << p.d->data->br[grp][r];
         }
@@ -1097,15 +1155,25 @@ QDataStream &operator>>(QDataStream &s, QPalette &p)
         } else if (s.version() <= QDataStream::Qt_5_11) {
             p = QPalette();
             max = QPalette::ToolTipText + 1;
+        } else if (s.version() <= QDataStream::Qt_6_5) {
+            p = QPalette();
+            max = QPalette::PlaceholderText + 1;
         }
 
+
         QBrush tmp;
         for(int grp = 0; grp < (int)QPalette::NColorGroups; ++grp) {
+            const QPalette::ColorGroup group = static_cast<QPalette::ColorGroup>(grp);
             for(int role = 0; role < max; ++role) {
                 s >> tmp;
-                p.setBrush((QPalette::ColorGroup)grp, (QPalette::ColorRole)role, tmp);
+                p.setBrush(group, (QPalette::ColorRole)role, tmp);
             }
+
+            // Accent defaults to Highlight for stream versions that don't have it.
+            if (s.version() < QDataStream::Qt_6_6)
+                p.setBrush(group, QPalette::Accent, p.brush(group, QPalette::Highlight));
         }
+
     }
     return s;
 }
diff --git a/src/gui/kernel/qpalette.h b/src/gui/kernel/qpalette.h
index 0a6dc0b3..a6162e10 100644
--- a/src/gui/kernel/qpalette.h
+++ b/src/gui/kernel/qpalette.h
@@ -45,6 +45,7 @@ public:
     operator QVariant() const;
 
     // Do not change the order, the serialization format depends on it
+    // Ensure these values are kept in sync with QQuickColorGroup's properties.
     enum ColorGroup { Active, Disabled, Inactive, NColorGroups, Current, All, Normal = Active };
     Q_ENUM(ColorGroup)
     enum ColorRole { WindowText, Button, Light, Midlight, Dark, Mid,
@@ -55,7 +56,8 @@ public:
                      NoRole,
                      ToolTipBase, ToolTipText,
                      PlaceholderText,
-                     NColorRoles = PlaceholderText + 1,
+                     Accent,
+                     NColorRoles = Accent + 1,
                    };
     Q_ENUM(ColorRole)
 
@@ -98,6 +100,7 @@ public:
     inline const QBrush &link() const { return brush(Link); }
     inline const QBrush &linkVisited() const { return brush(LinkVisited); }
     inline const QBrush &placeholderText() const { return brush(PlaceholderText); }
+    inline const QBrush &accent() const { return brush(Accent); }
 
     bool operator==(const QPalette &p) const;
     inline bool operator!=(const QPalette &p) const { return !(operator==(p)); }
diff --git a/src/gui/kernel/qplatformdialoghelper.cpp b/src/gui/kernel/qplatformdialoghelper.cpp
index e1f84053..7153c90f 100644
--- a/src/gui/kernel/qplatformdialoghelper.cpp
+++ b/src/gui/kernel/qplatformdialoghelper.cpp
@@ -768,7 +768,7 @@ public:
     {}
 
     QString windowTitle;
-    QMessageDialogOptions::Icon icon;
+    QMessageDialogOptions::StandardIcon icon;
     QString text;
     QString informativeText;
     QString detailedText;
@@ -778,6 +778,7 @@ public:
     QPixmap iconPixmap;
     QString checkBoxLabel;
     Qt::CheckState checkBoxState = Qt::Unchecked;
+    QMessageDialogOptions::Options options;
 };
 
 QMessageDialogOptions::QMessageDialogOptions(QMessageDialogOptionsPrivate *dd)
@@ -819,12 +820,12 @@ void QMessageDialogOptions::setWindowTitle(const QString &title)
     d->windowTitle = title;
 }
 
-QMessageDialogOptions::Icon QMessageDialogOptions::icon() const
+QMessageDialogOptions::StandardIcon QMessageDialogOptions::standardIcon() const
 {
     return d->icon;
 }
 
-void QMessageDialogOptions::setIcon(Icon icon)
+void QMessageDialogOptions::setStandardIcon(StandardIcon icon)
 {
     d->icon = icon;
 }
@@ -924,6 +925,29 @@ Qt::CheckState QMessageDialogOptions::checkBoxState() const
     return d->checkBoxState;
 }
 
+void QMessageDialogOptions::setOption(QMessageDialogOptions::Option option, bool on)
+{
+    if (!(d->options & option) != !on)
+        setOptions(d->options ^ option);
+}
+
+bool QMessageDialogOptions::testOption(QMessageDialogOptions::Option option) const
+{
+    return d->options & option;
+}
+
+void QMessageDialogOptions::setOptions(QMessageDialogOptions::Options options)
+{
+    if (options != d->options)
+        d->options = options;
+}
+
+QMessageDialogOptions::Options QMessageDialogOptions::options() const
+{
+    return d->options;
+}
+
+
 QPlatformDialogHelper::ButtonRole QPlatformDialogHelper::buttonRole(QPlatformDialogHelper::StandardButton button)
 {
     switch (button) {
diff --git a/src/gui/kernel/qplatformdialoghelper.h b/src/gui/kernel/qplatformdialoghelper.h
index fc2e85a8..161ea067 100644
--- a/src/gui/kernel/qplatformdialoghelper.h
+++ b/src/gui/kernel/qplatformdialoghelper.h
@@ -403,9 +403,16 @@ protected:
     ~QMessageDialogOptions();
 
 public:
+    // Keep in sync with QMessageBox Option
+    enum class Option {
+        DontUseNativeDialog = 0x00000001,
+    };
+    Q_DECLARE_FLAGS(Options, Option);
+    Q_FLAG(Options);
+
     // Keep in sync with QMessageBox::Icon
-    enum Icon { NoIcon, Information, Warning, Critical, Question };
-    Q_ENUM(Icon)
+    enum StandardIcon { NoIcon, Information, Warning, Critical, Question };
+    Q_ENUM(StandardIcon)
 
     static QSharedPointer<QMessageDialogOptions> create();
     QSharedPointer<QMessageDialogOptions> clone() const;
@@ -413,8 +420,8 @@ public:
     QString windowTitle() const;
     void setWindowTitle(const QString &);
 
-    void setIcon(Icon icon);
-    Icon icon() const;
+    void setStandardIcon(StandardIcon icon);
+    StandardIcon standardIcon() const;
 
     void setIconPixmap(const QPixmap &pixmap);
     QPixmap iconPixmap() const;
@@ -428,6 +435,11 @@ public:
     void setDetailedText(const QString &text);
     QString detailedText() const;
 
+    void setOption(Option option, bool on = true);
+    bool testOption(Option option) const;
+    void setOptions(Options options);
+    Options options() const;
+
     void setStandardButtons(QPlatformDialogHelper::StandardButtons buttons);
     QPlatformDialogHelper::StandardButtons standardButtons() const;
 
diff --git a/src/gui/kernel/qplatforminputcontext.cpp b/src/gui/kernel/qplatforminputcontext.cpp
index b8a53685..985cefa1 100644
--- a/src/gui/kernel/qplatforminputcontext.cpp
+++ b/src/gui/kernel/qplatforminputcontext.cpp
@@ -95,7 +95,7 @@ void QPlatformInputContext::update(Qt::InputMethodQueries)
 }
 
 /*!
-    Called when when the word currently being composed in input item is tapped by
+    Called when the word currently being composed in the input item is tapped by
     the user. Input methods often use this information to offer more word
     suggestions to the user.
  */
diff --git a/src/gui/kernel/qplatformintegration.cpp b/src/gui/kernel/qplatformintegration.cpp
index c95742b3..b7117b12 100644
--- a/src/gui/kernel/qplatformintegration.cpp
+++ b/src/gui/kernel/qplatformintegration.cpp
@@ -416,6 +416,8 @@ QVariant QPlatformIntegration::styleHint(StyleHint hint) const
         return QPlatformTheme::defaultThemeHint(QPlatformTheme::FlickMaximumVelocity);
     case FlickDeceleration:
         return QPlatformTheme::defaultThemeHint(QPlatformTheme::FlickDeceleration);
+    case UnderlineShortcut:
+        return true;
     }
 
     return 0;
diff --git a/src/gui/kernel/qplatformintegration.h b/src/gui/kernel/qplatformintegration.h
index 3d433957..39384501 100644
--- a/src/gui/kernel/qplatformintegration.h
+++ b/src/gui/kernel/qplatformintegration.h
@@ -164,7 +164,8 @@ public:
         MouseDoubleClickDistance,
         FlickStartDistance,
         FlickMaximumVelocity,
-        FlickDeceleration
+        FlickDeceleration,
+        UnderlineShortcut,
     };
 
     virtual QVariant styleHint(StyleHint hint) const;
diff --git a/src/gui/kernel/qplatformscreen.cpp b/src/gui/kernel/qplatformscreen.cpp
index 94f31ac6..0369a0b1 100644
--- a/src/gui/kernel/qplatformscreen.cpp
+++ b/src/gui/kernel/qplatformscreen.cpp
@@ -25,10 +25,8 @@ QPlatformScreen::QPlatformScreen()
 QPlatformScreen::~QPlatformScreen()
 {
     Q_D(QPlatformScreen);
-    if (d->screen) {
-        qWarning("Manually deleting a QPlatformScreen. Call QWindowSystemInterface::handleScreenRemoved instead.");
-        delete d->screen;
-    }
+    Q_ASSERT_X(!d->screen, "QPlatformScreen",
+        "QPlatformScreens should be removed via QWindowSystemInterface::handleScreenRemoved()");
 }
 
 /*!
diff --git a/src/gui/kernel/qplatformscreen.h b/src/gui/kernel/qplatformscreen.h
index 3ef5798a..de704f46 100644
--- a/src/gui/kernel/qplatformscreen.h
+++ b/src/gui/kernel/qplatformscreen.h
@@ -132,7 +132,7 @@ protected:
     QScopedPointer<QPlatformScreenPrivate> d_ptr;
 
 private:
-    friend class QScreenPrivate;
+    friend class QScreen;
 };
 
 // Qt doesn't currently support running with no platform screen
diff --git a/src/gui/kernel/qplatformtheme.cpp b/src/gui/kernel/qplatformtheme.cpp
index 7d565813..f7f54709 100644
--- a/src/gui/kernel/qplatformtheme.cpp
+++ b/src/gui/kernel/qplatformtheme.cpp
@@ -374,6 +374,7 @@ Q_GUI_EXPORT QPalette qt_fusionPalette()
     const QColor button = backGround;
     const QColor shadow = dark.darker(135);
     const QColor disabledShadow = shadow.lighter(150);
+    const QColor disabledHighlight(145, 145, 145);
     QColor placeholder = text;
     placeholder.setAlpha(128);
 
@@ -392,7 +393,11 @@ Q_GUI_EXPORT QPalette qt_fusionPalette()
 
     fusionPalette.setBrush(QPalette::Active, QPalette::Highlight, highlight);
     fusionPalette.setBrush(QPalette::Inactive, QPalette::Highlight, highlight);
-    fusionPalette.setBrush(QPalette::Disabled, QPalette::Highlight, QColor(145, 145, 145));
+    fusionPalette.setBrush(QPalette::Disabled, QPalette::Highlight, disabledHighlight);
+
+    fusionPalette.setBrush(QPalette::Active, QPalette::Accent, highlight);
+    fusionPalette.setBrush(QPalette::Inactive, QPalette::Accent, highlight);
+    fusionPalette.setBrush(QPalette::Disabled, QPalette::Accent, disabledHighlight);
 
     fusionPalette.setBrush(QPalette::PlaceholderText, placeholder);
 
@@ -525,6 +530,8 @@ QVariant QPlatformTheme::themeHint(ThemeHint hint) const
         return QGuiApplicationPrivate::platformIntegration()->styleHint(QPlatformIntegration::FlickMaximumVelocity);
     case QPlatformTheme::FlickDeceleration:
         return QGuiApplicationPrivate::platformIntegration()->styleHint(QPlatformIntegration::FlickDeceleration);
+    case QPlatformTheme::UnderlineShortcut:
+        return QGuiApplicationPrivate::platformIntegration()->styleHint(QPlatformIntegration::UnderlineShortcut);
     default:
         return QPlatformTheme::defaultThemeHint(hint);
     }
@@ -637,7 +644,10 @@ QVariant QPlatformTheme::defaultThemeHint(ThemeHint hint)
         return QVariant(QString());
     case MouseCursorSize:
         return QVariant(QSize(16, 16));
+    case UnderlineShortcut:
+        return true;
     }
+
     return QVariant();
 }
 
@@ -820,28 +830,23 @@ QString QPlatformTheme::removeMnemonics(const QString &original)
     };
     QString returnText(original.size(), u'\0');
     int finalDest = 0;
-    int currPos = 0;
-    int l = original.size();
-    while (l) {
-        if (original.at(currPos) == u'&') {
-            ++currPos;
-            --l;
-            if (l == 0)
+    QStringView text(original);
+    while (!text.isEmpty()) {
+        if (text.startsWith(u'&')) {
+            text = text.sliced(1);
+            if (text.isEmpty())
                 break;
-        } else if (l >= 4 && mnemonicInParentheses(QStringView{original}.sliced(currPos, 4))) {
-            // Also strip any leading space before the mnemonic:
-            int n = 0;
-            while (finalDest > n && returnText.at(finalDest - n - 1).isSpace())
-                ++n;
-            finalDest -= n;
-            currPos += 4;
-            l -= 4;
+        } else if (text.size() >= 4 && mnemonicInParentheses(text.first(4))) {
+            // Advance over the matched mnemonic:
+            text = text.sliced(4);
+            // Also strip any leading space before it:
+            while (finalDest > 0 && returnText.at(finalDest - 1).isSpace())
+                --finalDest;
             continue;
         }
-        returnText[finalDest] = original.at(currPos);
-        ++currPos;
+        returnText[finalDest] = text.front();
+        text = text.sliced(1);
         ++finalDest;
-        --l;
     }
     returnText.truncate(finalDest);
     return returnText;
diff --git a/src/gui/kernel/qplatformtheme.h b/src/gui/kernel/qplatformtheme.h
index dcc0c8e0..c0193947 100644
--- a/src/gui/kernel/qplatformtheme.h
+++ b/src/gui/kernel/qplatformtheme.h
@@ -95,7 +95,8 @@ public:
         FlickDeceleration,
         MenuBarFocusOnAltPressRelease,
         MouseCursorTheme,
-        MouseCursorSize
+        MouseCursorSize,
+        UnderlineShortcut,
     };
     Q_ENUM(ThemeHint)
 
diff --git a/src/gui/kernel/qplatformwindow.cpp b/src/gui/kernel/qplatformwindow.cpp
index d1bbbe5c..e2c9fc41 100644
--- a/src/gui/kernel/qplatformwindow.cpp
+++ b/src/gui/kernel/qplatformwindow.cpp
@@ -727,20 +727,29 @@ QRect QPlatformWindow::initialGeometry(const QWindow *w, const QRect &initialGeo
     should be delivered using QPlatformWindow::deliverUpdateRequest()
     to not get out of sync with the internal state of QWindow.
 
-    The default implementation posts an UpdateRequest event to the
-    window after 5 ms. The additional time is there to give the event
-    loop a bit of idle time to gather system events.
+    The default implementation posts an UpdateRequest event to the window after
+    an interval that is at most 5 ms. If the window's associated screen reports
+    a \l{QPlatformScreen::refreshRate()}{refresh rate} higher than 60 Hz, the
+    interval is scaled down to a valid smaller than 5. The additional time is
+    there to give the event loop a bit of idle time to gather system events.
 
 */
 void QPlatformWindow::requestUpdate()
 {
     Q_D(QPlatformWindow);
 
-    static int updateInterval = []() {
-        bool ok = false;
-        int customUpdateInterval = qEnvironmentVariableIntValue("QT_QPA_UPDATE_IDLE_TIME", &ok);
-        return ok ? customUpdateInterval : 5;
-    }();
+    static bool customUpdateIntervalValid = false;
+    static int customUpdateInterval = qEnvironmentVariableIntValue("QT_QPA_UPDATE_IDLE_TIME",
+                                                                   &customUpdateIntervalValid);
+    int updateInterval = customUpdateInterval;
+    if (!customUpdateIntervalValid) {
+        updateInterval = 5;
+        if (QPlatformScreen *currentScreen = screen()) {
+            const qreal refreshRate = currentScreen->refreshRate();
+            if (refreshRate > 60.0)
+                updateInterval /= refreshRate / 60.0;
+        }
+    }
 
     Q_ASSERT(!d->updateTimer.isActive());
     d->updateTimer.start(updateInterval, Qt::PreciseTimer, window());
diff --git a/src/gui/kernel/qplatformwindow_p.h b/src/gui/kernel/qplatformwindow_p.h
index 65b8b4a2..a1c7b754 100644
--- a/src/gui/kernel/qplatformwindow_p.h
+++ b/src/gui/kernel/qplatformwindow_p.h
@@ -41,6 +41,15 @@ public:
 
 namespace QNativeInterface::Private {
 
+#if defined(Q_OS_WASM) || defined(Q_QDOC)
+struct Q_GUI_EXPORT QWasmWindow
+{
+    QT_DECLARE_NATIVE_INTERFACE(QWasmWindow, 1, QWindow)
+    virtual emscripten::val document() const = 0;
+    virtual emscripten::val clientArea() const = 0;
+};
+#endif
+
 #if defined(Q_OS_MACOS) || defined(Q_QDOC)
 struct Q_GUI_EXPORT QCocoaWindow
 {
diff --git a/src/gui/kernel/qscreen.cpp b/src/gui/kernel/qscreen.cpp
index 052b2a77..d598e4fc 100644
--- a/src/gui/kernel/qscreen.cpp
+++ b/src/gui/kernel/qscreen.cpp
@@ -37,29 +37,23 @@ QT_BEGIN_NAMESPACE
     \inmodule QtGui
 */
 
-QScreen::QScreen(QPlatformScreen *screen)
+QScreen::QScreen(QPlatformScreen *platformScreen)
     : QObject(*new QScreenPrivate(), nullptr)
 {
     Q_D(QScreen);
-    d->setPlatformScreen(screen);
-}
 
-void QScreenPrivate::setPlatformScreen(QPlatformScreen *screen)
-{
-    Q_Q(QScreen);
-    platformScreen = screen;
-    platformScreen->d_func()->screen = q;
-    orientation = platformScreen->orientation();
+    d->platformScreen = platformScreen;
+    platformScreen->d_func()->screen = this;
 
-    logicalDpi = QPlatformScreen::overrideDpi(platformScreen->logicalDpi());
-
-    refreshRate = platformScreen->refreshRate();
+    d->orientation = platformScreen->orientation();
+    d->logicalDpi = QPlatformScreen::overrideDpi(platformScreen->logicalDpi());
+    d->refreshRate = platformScreen->refreshRate();
     // safeguard ourselves against buggy platform behavior...
-    if (refreshRate < 1.0)
-        refreshRate = 60.0;
+    if (d->refreshRate < 1.0)
+        d->refreshRate = 60.0;
 
-    updateGeometry();
-    updatePrimaryOrientation(); // derived from the geometry
+    d->updateGeometry();
+    d->updatePrimaryOrientation(); // derived from the geometry
 }
 
 void QScreenPrivate::updateGeometry()
@@ -72,45 +66,13 @@ void QScreenPrivate::updateGeometry()
 
 /*!
     Destroys the screen.
+
+    \internal
  */
 QScreen::~QScreen()
 {
-    // Remove screen
-    const bool wasPrimary = QGuiApplication::primaryScreen() == this;
-    QGuiApplicationPrivate::screen_list.removeOne(this);
-    QGuiApplicationPrivate::resetCachedDevicePixelRatio();
-
-    if (!qGuiApp)
-        return;
-
-    QScreen *newPrimaryScreen = QGuiApplication::primaryScreen();
-    if (wasPrimary && newPrimaryScreen)
-        emit qGuiApp->primaryScreenChanged(newPrimaryScreen);
-
-    // Allow clients to manage windows that are affected by the screen going
-    // away, before we fall back to moving them to the primary screen.
-    emit qApp->screenRemoved(this);
-
-    if (QGuiApplication::closingDown())
-        return;
-
-    bool movingFromVirtualSibling = newPrimaryScreen
-        && newPrimaryScreen->handle()->virtualSiblings().contains(handle());
-
-    // Move any leftover windows to the primary screen
-    const auto allWindows = QGuiApplication::allWindows();
-    for (QWindow *window : allWindows) {
-        if (!window->isTopLevel() || window->screen() != this)
-            continue;
-
-        const bool wasVisible = window->isVisible();
-        window->setScreen(newPrimaryScreen);
-
-        // Re-show window if moved from a virtual sibling screen. Otherwise
-        // leave it up to the application developer to show the window.
-        if (movingFromVirtualSibling)
-            window->setVisible(wasVisible);
-    }
+    Q_ASSERT_X(!QGuiApplicationPrivate::screen_list.contains(this), "QScreen",
+        "QScreens should be removed via QWindowSystemInterface::handleScreenRemoved()");
 }
 
 /*!
diff --git a/src/gui/kernel/qscreen_p.h b/src/gui/kernel/qscreen_p.h
index b9e726a9..964bc1cc 100644
--- a/src/gui/kernel/qscreen_p.h
+++ b/src/gui/kernel/qscreen_p.h
@@ -40,7 +40,6 @@ class QScreenPrivate : public QObjectPrivate, public QScreenData
 {
     Q_DECLARE_PUBLIC(QScreen)
 public:
-    void setPlatformScreen(QPlatformScreen *screen);
     void updateGeometry();
     void updatePrimaryOrientation();
 
diff --git a/src/gui/kernel/qshortcutmap.cpp b/src/gui/kernel/qshortcutmap.cpp
index ed03f005..18494193 100644
--- a/src/gui/kernel/qshortcutmap.cpp
+++ b/src/gui/kernel/qshortcutmap.cpp
@@ -410,6 +410,7 @@ QKeySequence::SequenceMatch QShortcutMap::find(QKeyEvent *e, int ignoredModifier
     int result = QKeySequence::NoMatch;
     for (int i = d->newEntries.size()-1; i >= 0 ; --i) {
         QShortcutEntry entry(d->newEntries.at(i)); // needed for searching
+        qCDebug(lcShortcutMap) << "- checking entry" << entry.id << entry.keyseq;
         const auto itEnd = d->sequences.constEnd();
         auto it = std::lower_bound(d->sequences.constBegin(), itEnd, entry);
 
@@ -420,6 +421,8 @@ QKeySequence::SequenceMatch QShortcutMap::find(QKeyEvent *e, int ignoredModifier
                 break;
             tempRes = matches(entry.keyseq, (*it).keyseq);
             oneKSResult = qMax(oneKSResult, tempRes);
+            qCDebug(lcShortcutMap) << "  - matches returned" << tempRes << "for" << entry.keyseq << it->keyseq
+                << "- correctContext()?" << it->correctContext();
             if (tempRes != QKeySequence::NoMatch && (*it).correctContext()) {
                 if (tempRes == QKeySequence::ExactMatch) {
                     if ((*it).enabled)
diff --git a/src/gui/kernel/qstylehints.cpp b/src/gui/kernel/qstylehints.cpp
index 30a3be7d..5becae76 100644
--- a/src/gui/kernel/qstylehints.cpp
+++ b/src/gui/kernel/qstylehints.cpp
@@ -294,6 +294,7 @@ int QStyleHints::keyboardAutoRepeatRate() const
 
 /*!
     \property QStyleHints::keyboardAutoRepeatRateF
+    \since 6.5
     \brief the rate, in events per second, in which additional repeated key
     presses will automatically be generated if a key is being held down.
 */
@@ -376,6 +377,8 @@ bool QStyleHints::showIsMaximized() const
 
     Since Qt 5.13, the setShowShortcutsInContextMenus() function can be used to
     override the platform default.
+
+    \sa Qt::AA_DontShowShortcutsInContextMenus
 */
 bool QStyleHints::showShortcutsInContextMenus() const
 {
diff --git a/src/gui/kernel/qsurface.cpp b/src/gui/kernel/qsurface.cpp
index b8083641..c00cf55a 100644
--- a/src/gui/kernel/qsurface.cpp
+++ b/src/gui/kernel/qsurface.cpp
@@ -30,13 +30,12 @@ QT_IMPL_METATYPE_EXTERN_TAGGED(QSurface*, QSurface_ptr)
     \value Offscreen The surface is an instance of QOffscreenSurface.
  */
 
-
 /*!
     \enum QSurface::SurfaceType
 
     The SurfaceType enum describes what type of surface this is.
 
-    \value RasterSurface The surface is is composed of pixels and can be rendered to using
+    \value RasterSurface The surface is composed of pixels and can be rendered to using
     a software rasterizer like Qt's raster paint engine.
     \value OpenGLSurface The surface is an OpenGL compatible surface and can be used
     in conjunction with QOpenGLContext.
@@ -55,7 +54,6 @@ QT_IMPL_METATYPE_EXTERN_TAGGED(QSurface*, QSurface_ptr)
     surface type is only supported on Windows.
  */
 
-
 /*!
     \fn QSurfaceFormat QSurface::format() const
 
diff --git a/src/gui/kernel/qtestsupport_gui.cpp b/src/gui/kernel/qtestsupport_gui.cpp
index 47c69f8b..ac58ab44 100644
--- a/src/gui/kernel/qtestsupport_gui.cpp
+++ b/src/gui/kernel/qtestsupport_gui.cpp
@@ -102,7 +102,7 @@ bool QTouchEventSequence::commit(bool processEvents)
 {
     if (points.isEmpty())
         return false;
-    QThread::msleep(1);
+    QThread::sleep(std::chrono::milliseconds{1});
     bool ret = false;
     if (targetWindow)
         ret = qt_handleTouchEventv2(targetWindow, device, points.values());
diff --git a/src/gui/kernel/qwindow.cpp b/src/gui/kernel/qwindow.cpp
index 90fa051b..0d524b86 100644
--- a/src/gui/kernel/qwindow.cpp
+++ b/src/gui/kernel/qwindow.cpp
@@ -213,8 +213,10 @@ void QWindowPrivate::init(QScreen *targetScreen)
     isWindow = true;
     parentWindow = static_cast<QWindow *>(q->QObject::parent());
 
+    QScreen *connectScreen = targetScreen ? targetScreen : QGuiApplication::primaryScreen();
+
     if (!parentWindow)
-        connectToScreen(targetScreen ? targetScreen : QGuiApplication::primaryScreen());
+        connectToScreen(connectScreen);
 
     // If your application aborts here, you are probably creating a QWindow
     // before the screen list is populated.
@@ -224,6 +226,20 @@ void QWindowPrivate::init(QScreen *targetScreen)
     QGuiApplicationPrivate::window_list.prepend(q);
 
     requestedFormat = QSurfaceFormat::defaultFormat();
+    devicePixelRatio = connectScreen->devicePixelRatio();
+
+    QObject::connect(q, &QWindow::screenChanged, q, [q, this](QScreen *){
+        // We may have changed scaling; trigger resize event if needed,
+        // except on Windows, where we send resize events during WM_DPICHANGED
+        // event handling. FIXME: unify DPI change handling across all platforms.
+#ifndef Q_OS_WIN
+        if (q->handle()) {
+            QWindowSystemInterfacePrivate::GeometryChangeEvent gce(q, QHighDpi::fromNativePixels(q->handle()->geometry(), q));
+            QGuiApplicationPrivate::processGeometryChangeEvent(&gce);
+        }
+#endif
+        updateDevicePixelRatio();
+    });
 }
 
 /*!
@@ -550,6 +566,8 @@ void QWindowPrivate::create(bool recursive, WId nativeHandle)
     QPlatformSurfaceEvent e(QPlatformSurfaceEvent::SurfaceCreated);
     QGuiApplication::sendEvent(q, &e);
 
+    updateDevicePixelRatio();
+
     if (needsUpdate)
         q->requestUpdate();
 }
@@ -668,7 +686,7 @@ bool QWindow::isVisible() const
     into an actual native surface. However, the window remains hidden until setVisible() is called.
 
     Note that it is not usually necessary to call this function directly, as it will be implicitly
-    called by show(), setVisible(), and other functions that require access to the platform
+    called by show(), setVisible(), winId(), and other functions that require access to the platform
     resources.
 
     Call destroy() to free the platform resources if necessary.
@@ -1333,14 +1351,29 @@ Qt::ScreenOrientation QWindow::contentOrientation() const
 qreal QWindow::devicePixelRatio() const
 {
     Q_D(const QWindow);
+    return d->devicePixelRatio;
+}
+
+/*
+    Updates the cached devicePixelRatio value by polling for a new value.
+    Sends QEvent::DevicePixelRatioChange to the window if the DPR has changed.
+*/
+void QWindowPrivate::updateDevicePixelRatio()
+{
+    Q_Q(QWindow);
 
     // If there is no platform window use the associated screen's devicePixelRatio,
     // which typically is the primary screen and will be correct for single-display
     // systems (a very common case).
-    if (!d->platformWindow)
-        return screen()->devicePixelRatio();
+    const qreal newDevicePixelRatio = platformWindow ?
+        platformWindow->devicePixelRatio() * QHighDpiScaling::factor(q) : q->screen()->devicePixelRatio();
 
-    return d->platformWindow->devicePixelRatio() * QHighDpiScaling::factor(this);
+    if (newDevicePixelRatio == devicePixelRatio)
+        return;
+
+    devicePixelRatio = newDevicePixelRatio;
+    QEvent dprChangeEvent(QEvent::DevicePixelRatioChange);
+    QGuiApplication::sendEvent(q, &dprChangeEvent);
 }
 
 Qt::WindowState QWindowPrivate::effectiveState(Qt::WindowStates state)
@@ -2584,11 +2617,13 @@ bool QWindow::event(QEvent *ev)
 /*!
     Schedules a QEvent::UpdateRequest event to be delivered to this window.
 
-    The event is delivered in sync with the display vsync on platforms
-    where this is possible. Otherwise, the event is delivered after a
-    delay of 5 ms. The additional time is there to give the event loop
-    a bit of idle time to gather system events, and can be overridden
-    using the QT_QPA_UPDATE_IDLE_TIME environment variable.
+    The event is delivered in sync with the display vsync on platforms where
+    this is possible. Otherwise, the event is delivered after a delay of at
+    most 5 ms. If the window's associated screen reports a
+    \l{QScreen::refreshRate()}{refresh rate} higher than 60 Hz, the interval is
+    scaled down to a value smaller than 5. The additional time is there to give
+    the event loop a bit of idle time to gather system events, and can be
+    overridden using the QT_QPA_UPDATE_IDLE_TIME environment variable.
 
     When driving animations, this function should be called once after drawing
     has completed. Calling this function multiple times will result in a single
@@ -3050,6 +3085,10 @@ void *QWindow::resolveInterface(const char *name, int revision) const
     QT_NATIVE_INTERFACE_RETURN_IF(QWaylandWindow, platformWindow);
 #endif
 
+#if defined(Q_OS_WASM)
+    QT_NATIVE_INTERFACE_RETURN_IF(QWasmWindow, platformWindow);
+#endif
+
     return nullptr;
 }
 
diff --git a/src/gui/kernel/qwindow_p.h b/src/gui/kernel/qwindow_p.h
index ef633d09..96beb17b 100644
--- a/src/gui/kernel/qwindow_p.h
+++ b/src/gui/kernel/qwindow_p.h
@@ -89,6 +89,8 @@ public:
     void setAutomaticPositionAndResizeEnabled(bool a)
     { positionAutomatic = resizeAutomatic = a; }
 
+    void updateDevicePixelRatio();
+
     static QWindowPrivate *get(QWindow *window) { return window->d_func(); }
 
     static Qt::WindowState effectiveState(Qt::WindowStates);
@@ -106,6 +108,7 @@ public:
     QString windowFilePath;
     QIcon windowIcon;
     QRect geometry;
+    qreal devicePixelRatio = 1.0;
     Qt::WindowStates windowState = Qt::WindowNoState;
     QWindow::Visibility visibility = QWindow::Hidden;
     bool resizeEventPending = true;
diff --git a/src/gui/kernel/qwindowsysteminterface.cpp b/src/gui/kernel/qwindowsysteminterface.cpp
index 48dc5fe7..be2157c8 100644
--- a/src/gui/kernel/qwindowsysteminterface.cpp
+++ b/src/gui/kernel/qwindowsysteminterface.cpp
@@ -259,6 +259,12 @@ QT_DEFINE_QPA_EVENT_HANDLER(void, handleWindowScreenChanged, QWindow *window, QS
     handleWindowSystemEvent<QWindowSystemInterfacePrivate::WindowScreenChangedEvent, Delivery>(window, screen);
 }
 
+QT_DEFINE_QPA_EVENT_HANDLER(void, handleWindowDevicePixelRatioChanged, QWindow *window)
+{
+    handleWindowSystemEvent<QWindowSystemInterfacePrivate::WindowDevicePixelRatioChangedEvent, Delivery>(window);
+}
+
+
 QT_DEFINE_QPA_EVENT_HANDLER(void, handleSafeAreaMarginsChanged, QWindow *window)
 {
     handleWindowSystemEvent<QWindowSystemInterfacePrivate::SafeAreaMarginsChangedEvent, Delivery>(window);
@@ -383,61 +389,34 @@ QT_DEFINE_QPA_EVENT_HANDLER(bool, handleMouseEvent, QWindow *window, ulong times
                             Qt::MouseButton button, QEvent::Type type, Qt::KeyboardModifiers mods,
                             Qt::MouseEventSource source)
 {
-    Q_ASSERT_X(type != QEvent::MouseButtonDblClick && type != QEvent::NonClientAreaMouseButtonDblClick,
-               "QWindowSystemInterface::handleMouseEvent",
+
+    bool isNonClientArea = {};
+
+    switch (type) {
+    case QEvent::MouseButtonDblClick:
+    case QEvent::NonClientAreaMouseButtonDblClick:
+        Q_ASSERT_X(false, "QWindowSystemInterface::handleMouseEvent",
                "QTBUG-71263: Native double clicks are not implemented.");
+        return false;
+    case QEvent::MouseMove:
+    case QEvent::MouseButtonPress:
+    case QEvent::MouseButtonRelease:
+        isNonClientArea = false;
+        break;
+    case QEvent::NonClientAreaMouseMove:
+    case QEvent::NonClientAreaMouseButtonPress:
+    case QEvent::NonClientAreaMouseButtonRelease:
+        isNonClientArea = true;
+        break;
+    default:
+        Q_UNREACHABLE();
+    }
+
     auto localPos = QHighDpi::fromNativeLocalPosition(local, window);
     auto globalPos = QHighDpi::fromNativeGlobalPosition(global, window);
 
     return handleWindowSystemEvent<QWindowSystemInterfacePrivate::MouseEvent, Delivery>(window,
-        timestamp, localPos, globalPos, state, mods, button, type, source, false, device);
-}
-
-bool QWindowSystemInterface::handleFrameStrutMouseEvent(QWindow *window,
-                                                        const QPointF &local, const QPointF &global,
-                                                        Qt::MouseButtons state,
-                                                        Qt::MouseButton button, QEvent::Type type,
-                                                        Qt::KeyboardModifiers mods,
-                                                        Qt::MouseEventSource source)
-{
-    const unsigned long time = QWindowSystemInterfacePrivate::eventTime.elapsed();
-    return handleFrameStrutMouseEvent(window, time, local, global, state, button, type, mods, source);
-}
-
-bool QWindowSystemInterface::handleFrameStrutMouseEvent(QWindow *window, const QPointingDevice *device,
-                                                        const QPointF &local, const QPointF &global,
-                                                        Qt::MouseButtons state,
-                                                        Qt::MouseButton button, QEvent::Type type,
-                                                        Qt::KeyboardModifiers mods,
-                                                        Qt::MouseEventSource source)
-{
-    const unsigned long time = QWindowSystemInterfacePrivate::eventTime.elapsed();
-    return handleFrameStrutMouseEvent(window, time, device, local, global, state, button, type, mods, source);
-}
-
-bool QWindowSystemInterface::handleFrameStrutMouseEvent(QWindow *window, ulong timestamp,
-                                                        const QPointF &local, const QPointF &global,
-                                                        Qt::MouseButtons state,
-                                                        Qt::MouseButton button, QEvent::Type type,
-                                                        Qt::KeyboardModifiers mods,
-                                                        Qt::MouseEventSource source)
-{
-    return handleFrameStrutMouseEvent(window, timestamp, QPointingDevice::primaryPointingDevice(),
-                                      local, global, state, button, type, mods, source);
-}
-
-bool QWindowSystemInterface::handleFrameStrutMouseEvent(QWindow *window, ulong timestamp, const QPointingDevice *device,
-                                                        const QPointF &local, const QPointF &global,
-                                                        Qt::MouseButtons state,
-                                                        Qt::MouseButton button, QEvent::Type type,
-                                                        Qt::KeyboardModifiers mods,
-                                                        Qt::MouseEventSource source)
-{
-    auto localPos = QHighDpi::fromNativeLocalPosition(local, window);
-    auto globalPos = QHighDpi::fromNativeGlobalPosition(global, window);
-
-    return handleWindowSystemEvent<QWindowSystemInterfacePrivate::MouseEvent>(window,
-        timestamp, localPos, globalPos, state, mods, button, type, source, true, device);
+        timestamp, localPos, globalPos, state, mods, button, type, source, isNonClientArea, device);
 }
 
 bool QWindowSystemInterface::handleShortcutEvent(QWindow *window, ulong timestamp, int keyCode, Qt::KeyboardModifiers modifiers, quint32 nativeScanCode,
@@ -732,9 +711,9 @@ QT_DEFINE_QPA_EVENT_HANDLER(bool, handleTouchCancelEvent, QWindow *window, ulong
 
     The screen should be deleted by calling QWindowSystemInterface::handleScreenRemoved().
 */
-void QWindowSystemInterface::handleScreenAdded(QPlatformScreen *ps, bool isPrimary)
+void QWindowSystemInterface::handleScreenAdded(QPlatformScreen *platformScreen, bool isPrimary)
 {
-    QScreen *screen = new QScreen(ps);
+    QScreen *screen = new QScreen(platformScreen);
 
     if (isPrimary)
         QGuiApplicationPrivate::screen_list.prepend(screen);
@@ -761,9 +740,45 @@ void QWindowSystemInterface::handleScreenAdded(QPlatformScreen *ps, bool isPrima
 */
 void QWindowSystemInterface::handleScreenRemoved(QPlatformScreen *platformScreen)
 {
-    // Important to keep this order since the QSceen doesn't own the platform screen.
-    // The QScreen destructor will take care changing the primary screen, so no need here.
-    delete platformScreen->screen();
+    QScreen *screen = platformScreen->screen();
+
+    // Remove screen
+    const bool wasPrimary = QGuiApplication::primaryScreen() == screen;
+    QGuiApplicationPrivate::screen_list.removeOne(screen);
+    QGuiApplicationPrivate::resetCachedDevicePixelRatio();
+
+    if (qGuiApp) {
+        QScreen *newPrimaryScreen = QGuiApplication::primaryScreen();
+        if (wasPrimary && newPrimaryScreen)
+            emit qGuiApp->primaryScreenChanged(newPrimaryScreen);
+
+        // Allow clients to manage windows that are affected by the screen going
+        // away, before we fall back to moving them to the primary screen.
+        emit qApp->screenRemoved(screen);
+
+        if (!QGuiApplication::closingDown()) {
+            bool movingFromVirtualSibling = newPrimaryScreen
+                && newPrimaryScreen->handle()->virtualSiblings().contains(platformScreen);
+
+            // Move any leftover windows to the primary screen
+            const auto allWindows = QGuiApplication::allWindows();
+            for (QWindow *window : allWindows) {
+                if (!window->isTopLevel() || window->screen() != screen)
+                    continue;
+
+                const bool wasVisible = window->isVisible();
+                window->setScreen(newPrimaryScreen);
+
+                // Re-show window if moved from a virtual sibling screen. Otherwise
+                // leave it up to the application developer to show the window.
+                if (movingFromVirtualSibling)
+                    window->setVisible(wasVisible);
+            }
+        }
+    }
+
+    // Important to keep this order since the QSceen doesn't own the platform screen
+    delete screen;
     delete platformScreen;
 }
 
diff --git a/src/gui/kernel/qwindowsysteminterface.h b/src/gui/kernel/qwindowsysteminterface.h
index f7857e16..29ecd656 100644
--- a/src/gui/kernel/qwindowsysteminterface.h
+++ b/src/gui/kernel/qwindowsysteminterface.h
@@ -64,31 +64,6 @@ public:
                                  Qt::KeyboardModifiers mods = Qt::NoModifier,
                                  Qt::MouseEventSource source = Qt::MouseEventNotSynthesized);
 
-    static bool handleFrameStrutMouseEvent(QWindow *window, const QPointF &local,
-                                           const QPointF &global, Qt::MouseButtons state,
-                                           Qt::MouseButton button, QEvent::Type type,
-                                           Qt::KeyboardModifiers mods = Qt::NoModifier,
-                                           Qt::MouseEventSource source =
-                                           Qt::MouseEventNotSynthesized);
-    static bool handleFrameStrutMouseEvent(QWindow *window, const QPointingDevice *device,
-                                           const QPointF &local, const QPointF &global,
-                                           Qt::MouseButtons state,
-                                           Qt::MouseButton button, QEvent::Type type,
-                                           Qt::KeyboardModifiers mods = Qt::NoModifier,
-                                           Qt::MouseEventSource source =
-                                           Qt::MouseEventNotSynthesized);
-    static bool handleFrameStrutMouseEvent(QWindow *window, ulong timestamp, const QPointF &local,
-                                           const QPointF &global, Qt::MouseButtons state,
-                                           Qt::MouseButton button, QEvent::Type type,
-                                           Qt::KeyboardModifiers mods = Qt::NoModifier,
-                                           Qt::MouseEventSource source =
-                                           Qt::MouseEventNotSynthesized);
-    static bool handleFrameStrutMouseEvent(QWindow *window, ulong timestamp, const QPointingDevice *device,
-                                           const QPointF &local, const QPointF &global, Qt::MouseButtons state,
-                                           Qt::MouseButton button, QEvent::Type type,
-                                           Qt::KeyboardModifiers mods = Qt::NoModifier,
-                                           Qt::MouseEventSource source = Qt::MouseEventNotSynthesized);
-
     static bool handleShortcutEvent(QWindow *window, ulong timestamp, int k, Qt::KeyboardModifiers mods, quint32 nativeScanCode,
                                       quint32 nativeVirtualKey, quint32 nativeModifiers, const QString & text = QString(), bool autorep = false, ushort count = 1);
 
@@ -190,6 +165,9 @@ public:
     template<typename Delivery = QWindowSystemInterface::DefaultDelivery>
     static void handleWindowScreenChanged(QWindow *window, QScreen *newScreen);
 
+    template<typename Delivery = QWindowSystemInterface::DefaultDelivery>
+    static void handleWindowDevicePixelRatioChanged(QWindow *window);
+
     template<typename Delivery = QWindowSystemInterface::DefaultDelivery>
     static void handleSafeAreaMarginsChanged(QWindow *window);
 
diff --git a/src/gui/kernel/qwindowsysteminterface_p.h b/src/gui/kernel/qwindowsysteminterface_p.h
index 5aa4d17a..b08abc0a 100644
--- a/src/gui/kernel/qwindowsysteminterface_p.h
+++ b/src/gui/kernel/qwindowsysteminterface_p.h
@@ -68,7 +68,8 @@ public:
         WindowScreenChanged = 0x21,
         SafeAreaMarginsChanged = 0x22,
         ApplicationTermination = 0x23,
-        Paint = 0x24
+        Paint = 0x24,
+        WindowDevicePixelRatioChanged = 0x25,
     };
 
     class WindowSystemEvent {
@@ -154,6 +155,15 @@ public:
         QPointer<QScreen> screen;
     };
 
+    class WindowDevicePixelRatioChangedEvent : public WindowSystemEvent {
+    public:
+        WindowDevicePixelRatioChangedEvent(QWindow *w)
+            : WindowSystemEvent(WindowDevicePixelRatioChanged), window(w)
+        { }
+
+        QPointer<QWindow> window;
+    };
+
     class SafeAreaMarginsChangedEvent : public WindowSystemEvent {
     public:
         SafeAreaMarginsChangedEvent(QWindow *w)
diff --git a/src/gui/math3d/qvectornd.h b/src/gui/math3d/qvectornd.h
index 0f3ce758..a8adf128 100644
--- a/src/gui/math3d/qvectornd.h
+++ b/src/gui/math3d/qvectornd.h
@@ -10,8 +10,13 @@
 #include <QtCore/qrect.h>
 #include <QtCore/qmath.h>
 
+#include <QtCore/q20type_traits.h>
+#include <QtCore/q23utility.h>
+
 QT_BEGIN_NAMESPACE
 
+// QT_ENABLE_P0846_SEMANTICS_FOR(get) // from qpoint.h
+
 class QVector2D;
 class QVector3D;
 class QVector4D;
@@ -145,10 +150,10 @@ private:
     template <std::size_t I,
               typename V,
               std::enable_if_t<(I < 2), bool> = true,
-              std::enable_if_t<std::is_same_v<std::decay_t<V>, QVector2D>, bool> = true>
+              std::enable_if_t<std::is_same_v<q20::remove_cvref_t<V>, QVector2D>, bool> = true>
     friend constexpr decltype(auto) get(V &&vec) noexcept
     {
-        return (std::forward<V>(vec).v[I]);
+        return q23::forward_like<V>(vec.v[I]);
     }
 };
 
@@ -304,10 +309,10 @@ private:
     template <std::size_t I,
               typename V,
               std::enable_if_t<(I < 3), bool> = true,
-              std::enable_if_t<std::is_same_v<std::decay_t<V>, QVector3D>, bool> = true>
+              std::enable_if_t<std::is_same_v<q20::remove_cvref_t<V>, QVector3D>, bool> = true>
     friend constexpr decltype(auto) get(V &&vec) noexcept
     {
-        return (std::forward<V>(vec).v[I]);
+        return q23::forward_like<V>(vec.v[I]);
     }
 };
 
@@ -456,10 +461,10 @@ private:
     template <std::size_t I,
               typename V,
               std::enable_if_t<(I < 4), bool> = true,
-              std::enable_if_t<std::is_same_v<std::decay_t<V>, QVector4D>, bool> = true>
+              std::enable_if_t<std::is_same_v<q20::remove_cvref_t<V>, QVector4D>, bool> = true>
     friend constexpr decltype(auto) get(V &&vec) noexcept
     {
-        return (std::forward<V>(vec).v[I]);
+        return q23::forward_like<V>(vec.v[I]);
     }
 };
 
diff --git a/src/gui/opengl/qopenglextensions_p.h b/src/gui/opengl/qopenglextensions_p.h
index 2924754e..fdb9b51f 100644
--- a/src/gui/opengl/qopenglextensions_p.h
+++ b/src/gui/opengl/qopenglextensions_p.h
@@ -58,7 +58,8 @@ public:
         TextureSwizzle          = 0x01000000,
         StandardDerivatives     = 0x02000000,
         ASTCTextureCompression  = 0x04000000,
-        ETC2TextureCompression  = 0x08000000
+        ETC2TextureCompression  = 0x08000000,
+        HalfFloatVertex         = 0x10000000
     };
     Q_DECLARE_FLAGS(OpenGLExtensions, OpenGLExtension)
 
diff --git a/src/gui/opengl/qopenglfunctions.cpp b/src/gui/opengl/qopenglfunctions.cpp
index d8c8e470..ee769875 100644
--- a/src/gui/opengl/qopenglfunctions.cpp
+++ b/src/gui/opengl/qopenglfunctions.cpp
@@ -346,6 +346,8 @@ static int qt_gl_resolve_extensions()
         extensions |= QOpenGLExtensions::TextureSwizzle;
     if (extensionMatcher.match("GL_OES_standard_derivatives"))
         extensions |= QOpenGLExtensions::StandardDerivatives;
+    if (extensionMatcher.match("GL_ARB_half_float_vertex"))
+        extensions |= QOpenGLExtensions::HalfFloatVertex;
 
     if (ctx->isOpenGLES()) {
         if (format.majorVersion() >= 2)
@@ -360,7 +362,8 @@ static int qt_gl_resolve_extensions()
                 | QOpenGLExtensions::FramebufferMultisample
                 | QOpenGLExtensions::Sized8Formats
                 | QOpenGLExtensions::StandardDerivatives
-                | QOpenGLExtensions::ETC2TextureCompression;
+                | QOpenGLExtensions::ETC2TextureCompression
+                | QOpenGLExtensions::HalfFloatVertex;
 #ifndef Q_OS_WASM
             // WebGL 2.0 specification explicitly does not support texture swizzles
             // https://www.khronos.org/registry/webgl/specs/latest/2.0/#5.19
diff --git a/src/gui/opengl/qopenglprogrambinarycache_p.h b/src/gui/opengl/qopenglprogrambinarycache_p.h
index 0237c81f..c3850bde 100644
--- a/src/gui/opengl/qopenglprogrambinarycache_p.h
+++ b/src/gui/opengl/qopenglprogrambinarycache_p.h
@@ -20,7 +20,7 @@
 #include <QtCore/qmutex.h>
 #include <QtCore/QLoggingCategory>
 #include <QtGui/private/qopenglcontext_p.h>
-#include <QtGui/private/qshader_p.h>
+#include <rhi/qshader.h>
 
 QT_BEGIN_NAMESPACE
 
diff --git a/src/gui/painting/qbackingstoredefaultcompositor.cpp b/src/gui/painting/qbackingstoredefaultcompositor.cpp
index e1a21c2d..13a8bdb1 100644
--- a/src/gui/painting/qbackingstoredefaultcompositor.cpp
+++ b/src/gui/painting/qbackingstoredefaultcompositor.cpp
@@ -17,6 +17,7 @@ QBackingStoreDefaultCompositor::~QBackingStoreDefaultCompositor()
 
 void QBackingStoreDefaultCompositor::reset()
 {
+    m_rhi = nullptr;
     delete m_psNoBlend;
     m_psNoBlend = nullptr;
     delete m_psBlend;
diff --git a/src/gui/painting/qbackingstoredefaultcompositor_p.h b/src/gui/painting/qbackingstoredefaultcompositor_p.h
index 63ff0e3a..2f835e5d 100644
--- a/src/gui/painting/qbackingstoredefaultcompositor_p.h
+++ b/src/gui/painting/qbackingstoredefaultcompositor_p.h
@@ -16,7 +16,7 @@
 //
 
 #include <qpa/qplatformbackingstore.h>
-#include <QtGui/private/qrhi_p.h>
+#include <rhi/qrhi.h>
 
 QT_BEGIN_NAMESPACE
 
diff --git a/src/gui/painting/qbackingstorerhisupport.cpp b/src/gui/painting/qbackingstorerhisupport.cpp
index 530de60e..3927367a 100644
--- a/src/gui/painting/qbackingstorerhisupport.cpp
+++ b/src/gui/painting/qbackingstorerhisupport.cpp
@@ -8,19 +8,9 @@
 #if QT_CONFIG(opengl)
 #include <QtGui/qoffscreensurface.h>
 #include <QtGui/private/qopenglcontext_p.h>
-#include <QtGui/private/qrhigles2_p.h>
-#endif
-
-#ifdef Q_OS_WIN
-#include <QtGui/private/qrhid3d11_p.h>
-#endif
-
-#if defined(Q_OS_MACOS) || defined(Q_OS_IOS)
-#include <QtGui/private/qrhimetal_p.h>
 #endif
 
 #if QT_CONFIG(vulkan)
-#include <QtGui/private/qrhivulkan_p.h>
 #include <QtGui/private/qvulkandefaultinstance_p.h>
 #endif
 
@@ -66,6 +56,16 @@ bool QBackingStoreRhiSupport::create()
     QOffscreenSurface *surface = nullptr;
     QRhi::Flags flags;
 
+    // This must be the same env.var. Qt Quick uses, to ensure symmetry in the
+    // behavior between a QQuickWindow and a (QRhi-based) widget top-level window.
+    if (qEnvironmentVariableIntValue("QSG_RHI_PREFER_SOFTWARE_RENDERER"))
+        flags |= QRhi::PreferSoftwareRenderer;
+
+    if (m_config.api() == QPlatformBackingStoreRhiConfig::Null) {
+        QRhiNullInitParams params;
+        rhi = QRhi::create(QRhi::Null, &params, flags);
+    }
+
 #if QT_CONFIG(opengl)
     if (!rhi && m_config.api() == QPlatformBackingStoreRhiConfig::OpenGL) {
         surface = QRhiGles2InitParams::newFallbackSurface(m_format);
@@ -79,15 +79,21 @@ bool QBackingStoreRhiSupport::create()
 #endif
 
 #ifdef Q_OS_WIN
-    if (!rhi && m_config.api() == QPlatformBackingStoreRhiConfig::D3D11) {
-        QRhiD3D11InitParams params;
-        params.enableDebugLayer = m_config.isDebugLayerEnabled();
-        rhi = QRhi::create(QRhi::D3D11, &params, flags);
-        if (!rhi && !flags.testFlag(QRhi::PreferSoftwareRenderer)) {
-            qCDebug(lcQpaBackingStore, "Failed to create a D3D device with default settings; "
-                                       "attempting to get a software rasterizer backed device instead");
-            flags |= QRhi::PreferSoftwareRenderer;
+    if (!rhi) {
+        if (m_config.api() == QPlatformBackingStoreRhiConfig::D3D11) {
+            QRhiD3D11InitParams params;
+            params.enableDebugLayer = m_config.isDebugLayerEnabled();
             rhi = QRhi::create(QRhi::D3D11, &params, flags);
+            if (!rhi && !flags.testFlag(QRhi::PreferSoftwareRenderer)) {
+                qCDebug(lcQpaBackingStore, "Failed to create a D3D device with default settings; "
+                                           "attempting to get a software rasterizer backed device instead");
+                flags |= QRhi::PreferSoftwareRenderer;
+                rhi = QRhi::create(QRhi::D3D11, &params, flags);
+            }
+        } else if (m_config.api() == QPlatformBackingStoreRhiConfig::D3D12) {
+            QRhiD3D12InitParams params;
+            params.enableDebugLayer = m_config.isDebugLayerEnabled();
+            rhi = QRhi::create(QRhi::D3D12, &params, flags);
         }
     }
 #endif
@@ -201,6 +207,7 @@ QSurface::SurfaceType QBackingStoreRhiSupport::surfaceTypeForConfig(const QPlatf
     QSurface::SurfaceType type = QSurface::RasterSurface;
     switch (config.api()) {
     case QPlatformBackingStoreRhiConfig::D3D11:
+    case QPlatformBackingStoreRhiConfig::D3D12:
         type = QSurface::Direct3DSurface;
         break;
     case QPlatformBackingStoreRhiConfig::Vulkan:
@@ -229,6 +236,8 @@ QRhi::Implementation QBackingStoreRhiSupport::apiToRhiBackend(QPlatformBackingSt
         return QRhi::Vulkan;
     case QPlatformBackingStoreRhiConfig::D3D11:
         return QRhi::D3D11;
+    case QPlatformBackingStoreRhiConfig::D3D12:
+        return QRhi::D3D12;
     case QPlatformBackingStoreRhiConfig::Null:
         return QRhi::Null;
     default:
@@ -270,6 +279,8 @@ bool QBackingStoreRhiSupport::checkForceRhi(QPlatformBackingStoreRhiConfig *outC
 #ifdef Q_OS_WIN
                 if (backend == QStringLiteral("d3d11") || backend == QStringLiteral("d3d"))
                     config.setApi(QPlatformBackingStoreRhiConfig::D3D11);
+                if (backend == QStringLiteral("d3d12"))
+                    config.setApi(QPlatformBackingStoreRhiConfig::D3D12);
 #endif
 #if defined(Q_OS_MACOS) || defined(Q_OS_IOS)
                 if (backend == QStringLiteral("metal"))
diff --git a/src/gui/painting/qbackingstorerhisupport_p.h b/src/gui/painting/qbackingstorerhisupport_p.h
index c8aa8f46..39ce36c6 100644
--- a/src/gui/painting/qbackingstorerhisupport_p.h
+++ b/src/gui/painting/qbackingstorerhisupport_p.h
@@ -19,7 +19,7 @@
 #include <QtGui/qwindow.h>
 #include <QtGui/qsurfaceformat.h>
 #include <QtGui/qoffscreensurface.h>
-#include <QtGui/private/qrhi_p.h>
+#include <rhi/qrhi.h>
 #include <qpa/qplatformbackingstore.h>
 
 QT_BEGIN_NAMESPACE
diff --git a/src/gui/painting/qpagelayout.h b/src/gui/painting/qpagelayout.h
index 04f58bd4..29be2f97 100644
--- a/src/gui/painting/qpagelayout.h
+++ b/src/gui/painting/qpagelayout.h
@@ -5,7 +5,7 @@
 #define QPAGELAYOUT_H
 
 #include <QtGui/qtguiglobal.h>
-#include <QtCore/qsharedpointer.h>
+#include <QtCore/qshareddata.h>
 #include <QtCore/qstring.h>
 #include <QtCore/qmargins.h>
 
diff --git a/src/gui/painting/qplatformbackingstore.cpp b/src/gui/painting/qplatformbackingstore.cpp
index 82e7778b..f7c4df40 100644
--- a/src/gui/painting/qplatformbackingstore.cpp
+++ b/src/gui/painting/qplatformbackingstore.cpp
@@ -379,6 +379,7 @@ void QPlatformBackingStore::graphicsDeviceReportedLost()
         return;
 
     qWarning("Rhi backingstore: graphics device lost, attempting to reinitialize");
+    d_ptr->compositor.reset();
     d_ptr->rhiSupport.reset();
     d_ptr->rhiSupport.create();
     if (!d_ptr->rhiSupport.rhi())
diff --git a/src/gui/painting/qplatformbackingstore.h b/src/gui/painting/qplatformbackingstore.h
index 40453574..d928af65 100644
--- a/src/gui/painting/qplatformbackingstore.h
+++ b/src/gui/painting/qplatformbackingstore.h
@@ -45,6 +45,7 @@ struct Q_GUI_EXPORT QPlatformBackingStoreRhiConfig
         Metal,
         Vulkan,
         D3D11,
+        D3D12,
         Null
     };
 
diff --git a/src/gui/painting/qregion.cpp b/src/gui/painting/qregion.cpp
index 457c2cc2..94f1f31e 100644
--- a/src/gui/painting/qregion.cpp
+++ b/src/gui/painting/qregion.cpp
@@ -3191,8 +3191,7 @@ static void CreateETandAET(int count, const QPoint *pts,
     int iSLLBlock = 0;
     int dy;
 
-    if (count < 2)
-        return;
+    Q_ASSERT(count > 1);
 
     /*
      *  initialize the Active Edge Table
@@ -3538,7 +3537,7 @@ static QRegionPrivate *PolygonRegion(const QPoint *Pts, int Count, int rule)
     POINTBLOCK *tmpPtBlock;
     int numFullPtBlocks = 0;
 
-    Q_ASSUME(Count > 1);
+    Q_ASSERT(Count > 1);
 
     region = new QRegionPrivate;
 
diff --git a/src/gui/painting/qrgbafloat.h b/src/gui/painting/qrgbafloat.h
index d5ca4cd8..da74328f 100644
--- a/src/gui/painting/qrgbafloat.h
+++ b/src/gui/painting/qrgbafloat.h
@@ -19,7 +19,13 @@ class alignas(sizeof(F) * 4) QRgbaFloat
     static_assert(std::is_same<F, qfloat16>::value || std::is_same<F, float>::value);
 public:
     using Type = F;
+#if defined(__AVX512FP16__) && QFLOAT16_IS_NATIVE
+    // AVX512FP16 has multiplication instructions
+    using FastType = F;
+#else
+    // use FP32 for multiplications
     using FastType = float;
+#endif
     F r;
     F g;
     F b;
@@ -28,7 +34,7 @@ public:
     static constexpr
     QRgbaFloat fromRgba64(quint16 red, quint16 green, quint16 blue, quint16 alpha)
     {
-        constexpr FastType scale = 1.0f / 65535.0f;
+        constexpr FastType scale = FastType(1.0f / 65535.0f);
         return QRgbaFloat{
             F(red    * scale),
             F(green  * scale),
@@ -39,7 +45,7 @@ public:
     static constexpr
     QRgbaFloat fromRgba(quint8 red, quint8 green, quint8 blue, quint8 alpha)
     {
-        constexpr FastType scale = 1.0f / 255.0f;
+        constexpr FastType scale = FastType(1.0f / 255.0f);
         return QRgbaFloat{
             F(red    * scale),
             F(green  * scale),
@@ -52,36 +58,36 @@ public:
         return fromRgba(quint8(rgb >> 16), quint8(rgb >> 8), quint8(rgb), quint8(rgb >> 24));
     }
 
-    constexpr bool isOpaque() const { return a >= 1.0f; }
-    constexpr bool isTransparent() const { return a <= 0.0f; }
+    constexpr bool isOpaque() const { return a >= FastType(1.0f); }
+    constexpr bool isTransparent() const { return a <= FastType(0.0f); }
 
-    constexpr FastType red()   const { return r; }
-    constexpr FastType green() const { return g; }
-    constexpr FastType blue()  const { return b; }
-    constexpr FastType alpha() const { return a; }
-    void setRed(FastType _red)     { r = F(_red); }
-    void setGreen(FastType _green) { g = F(_green); }
-    void setBlue(FastType _blue)   { b = F(_blue); }
-    void setAlpha(FastType _alpha) { a = F(_alpha); }
+    constexpr float red()   const { return r; }
+    constexpr float green() const { return g; }
+    constexpr float blue()  const { return b; }
+    constexpr float alpha() const { return a; }
+    void setRed(float _red)     { r = F(_red); }
+    void setGreen(float _green) { g = F(_green); }
+    void setBlue(float _blue)   { b = F(_blue); }
+    void setAlpha(float _alpha) { a = F(_alpha); }
 
-    constexpr FastType redNormalized()   const { return std::clamp(static_cast<FastType>(r), 0.0f, 1.0f); }
-    constexpr FastType greenNormalized() const { return std::clamp(static_cast<FastType>(g), 0.0f, 1.0f); }
-    constexpr FastType blueNormalized()  const { return std::clamp(static_cast<FastType>(b), 0.0f, 1.0f); }
-    constexpr FastType alphaNormalized() const { return std::clamp(static_cast<FastType>(a), 0.0f, 1.0f); }
+    constexpr float redNormalized()   const { return clamp01(r); }
+    constexpr float greenNormalized() const { return clamp01(g); }
+    constexpr float blueNormalized()  const { return clamp01(b); }
+    constexpr float alphaNormalized() const { return clamp01(a); }
 
-    constexpr quint8 red8()   const { return std::lround(redNormalized()   * 255.0f); }
-    constexpr quint8 green8() const { return std::lround(greenNormalized() * 255.0f); }
-    constexpr quint8 blue8()  const { return std::lround(blueNormalized()  * 255.0f); }
-    constexpr quint8 alpha8() const { return std::lround(alphaNormalized() * 255.0f); }
+    constexpr quint8 red8()   const { return qRound(redNormalized()   * FastType(255.0f)); }
+    constexpr quint8 green8() const { return qRound(greenNormalized() * FastType(255.0f)); }
+    constexpr quint8 blue8()  const { return qRound(blueNormalized()  * FastType(255.0f)); }
+    constexpr quint8 alpha8() const { return qRound(alphaNormalized() * FastType(255.0f)); }
     constexpr uint toArgb32() const
     {
        return uint((alpha8() << 24) | (red8() << 16) | (green8() << 8) | blue8());
     }
 
-    constexpr quint16 red16()   const { return std::lround(redNormalized()   * 65535.0f); }
-    constexpr quint16 green16() const { return std::lround(greenNormalized() * 65535.0f); }
-    constexpr quint16 blue16()  const { return std::lround(blueNormalized()  * 65535.0f); }
-    constexpr quint16 alpha16() const { return std::lround(alphaNormalized() * 65535.0f); }
+    constexpr quint16 red16()   const { return qRound(redNormalized()   * FastType(65535.0f)); }
+    constexpr quint16 green16() const { return qRound(greenNormalized() * FastType(65535.0f)); }
+    constexpr quint16 blue16()  const { return qRound(blueNormalized()  * FastType(65535.0f)); }
+    constexpr quint16 alpha16() const { return qRound(alphaNormalized() * FastType(65535.0f)); }
 
     constexpr Q_ALWAYS_INLINE QRgbaFloat premultiplied() const
     {
@@ -104,6 +110,12 @@ public:
     {
         return !(*this == f);
     }
+
+private:
+    constexpr static FastType clamp01(Type f)
+    {
+        return std::clamp(FastType(f), FastType(0.0f), FastType(1.0f));
+    }
 };
 
 typedef QRgbaFloat<qfloat16> QRgbaFloat16;
diff --git a/src/gui/painting/qtransform.cpp b/src/gui/painting/qtransform.cpp
index 6c49cd35..b2720b27 100644
--- a/src/gui/painting/qtransform.cpp
+++ b/src/gui/painting/qtransform.cpp
@@ -358,7 +358,7 @@ QTransform &QTransform::translate(qreal dx, qreal dy)
     if (dx == 0 && dy == 0)
         return *this;
 #ifndef QT_NO_DEBUG
-    if (qIsNaN(dx) | qIsNaN(dy)) {
+    if (qIsNaN(dx) || qIsNaN(dy)) {
         nanWarning("translate");
         return *this;
     }
@@ -401,7 +401,7 @@ QTransform &QTransform::translate(qreal dx, qreal dy)
 QTransform QTransform::fromTranslate(qreal dx, qreal dy)
 {
 #ifndef QT_NO_DEBUG
-    if (qIsNaN(dx) | qIsNaN(dy)) {
+    if (qIsNaN(dx) || qIsNaN(dy)) {
         nanWarning("fromTranslate");
         return QTransform();
 }
@@ -426,7 +426,7 @@ QTransform & QTransform::scale(qreal sx, qreal sy)
     if (sx == 1 && sy == 1)
         return *this;
 #ifndef QT_NO_DEBUG
-    if (qIsNaN(sx) | qIsNaN(sy)) {
+    if (qIsNaN(sx) || qIsNaN(sy)) {
         nanWarning("scale");
         return *this;
     }
@@ -467,7 +467,7 @@ QTransform & QTransform::scale(qreal sx, qreal sy)
 QTransform QTransform::fromScale(qreal sx, qreal sy)
 {
 #ifndef QT_NO_DEBUG
-    if (qIsNaN(sx) | qIsNaN(sy)) {
+    if (qIsNaN(sx) || qIsNaN(sy)) {
         nanWarning("fromScale");
         return QTransform();
 }
@@ -492,7 +492,7 @@ QTransform & QTransform::shear(qreal sh, qreal sv)
     if (sh == 0 && sv == 0)
         return *this;
 #ifndef QT_NO_DEBUG
-    if (qIsNaN(sh) | qIsNaN(sv)) {
+    if (qIsNaN(sh) || qIsNaN(sv)) {
         nanWarning("shear");
         return *this;
     }
diff --git a/src/gui/platform/unix/qxkbcommon.cpp b/src/gui/platform/unix/qxkbcommon.cpp
index fc014b38..d254aeec 100644
--- a/src/gui/platform/unix/qxkbcommon.cpp
+++ b/src/gui/platform/unix/qxkbcommon.cpp
@@ -488,11 +488,9 @@ int QXkbCommon::keysymToQtKey(xkb_keysym_t keysym, Qt::KeyboardModifiers modifie
         // With standard shortcuts we should prefer a latin character, this is
         // for checks like "some qkeyevent == QKeySequence::Copy" to work even
         // when using for example 'russian' keyboard layout.
-        if (!QXkbCommon::isLatin1(keysym)) {
-            xkb_keysym_t latinKeysym = QXkbCommon::lookupLatinKeysym(state, code);
-            if (latinKeysym != XKB_KEY_NoSymbol)
-                keysym = latinKeysym;
-        }
+        xkb_keysym_t latinKeysym = QXkbCommon::lookupLatinKeysym(state, code);
+        if (latinKeysym != XKB_KEY_NoSymbol)
+            keysym = latinKeysym;
     }
 
     return keysymToQtKey_internal(keysym, modifiers, state, code, superAsMeta, hyperAsMeta);
@@ -735,12 +733,9 @@ xkb_keysym_t QXkbCommon::lookupLatinKeysym(xkb_state *state, xkb_keycode_t keyco
     xkb_keysym_t sym = XKB_KEY_NoSymbol;
     xkb_keymap *keymap = xkb_state_get_keymap(state);
     const xkb_layout_index_t layoutCount = xkb_keymap_num_layouts_for_key(keymap, keycode);
-    const xkb_layout_index_t currentLayout = xkb_state_key_get_layout(state, keycode);
     // Look at user layouts in the order in which they are defined in system
     // settings to find a latin keysym.
     for (layout = 0; layout < layoutCount; ++layout) {
-        if (layout == currentLayout)
-            continue;
         const xkb_keysym_t *syms = nullptr;
         xkb_level_index_t level = xkb_state_key_get_level(state, keycode, layout);
         if (xkb_keymap_key_get_syms_by_level(keymap, keycode, layout, level, &syms) != 1)
@@ -751,34 +746,6 @@ xkb_keysym_t QXkbCommon::lookupLatinKeysym(xkb_state *state, xkb_keycode_t keyco
         }
     }
 
-    if (sym == XKB_KEY_NoSymbol)
-        return sym;
-
-    xkb_mod_mask_t latchedMods = xkb_state_serialize_mods(state, XKB_STATE_MODS_LATCHED);
-    xkb_mod_mask_t lockedMods = xkb_state_serialize_mods(state, XKB_STATE_MODS_LOCKED);
-
-    // Check for uniqueness, consider the following setup:
-    // setxkbmap -layout us,ru,us -variant dvorak,, -option 'grp:ctrl_alt_toggle' (set 'ru' as active).
-    // In this setup, the user would expect to trigger a ctrl+q shortcut by pressing ctrl+<physical x key>,
-    // because "US dvorak" is higher up in the layout settings list. This check verifies that an obtained
-    // 'sym' can not be acquired by any other layout higher up in the user's layout list. If it can be acquired
-    // then the obtained key is not unique. This prevents ctrl+<physical q key> from generating a ctrl+q
-    // shortcut in the above described setup. We don't want ctrl+<physical x key> and ctrl+<physical q key> to
-    // generate the same shortcut event in this case.
-    const xkb_keycode_t minKeycode = xkb_keymap_min_keycode(keymap);
-    const xkb_keycode_t maxKeycode = xkb_keymap_max_keycode(keymap);
-    ScopedXKBState queryState(xkb_state_new(keymap));
-    for (xkb_layout_index_t prevLayout = 0; prevLayout < layout; ++prevLayout) {
-        xkb_state_update_mask(queryState.get(), 0, latchedMods, lockedMods, 0, 0, prevLayout);
-        for (xkb_keycode_t code = minKeycode; code < maxKeycode; ++code) {
-            xkb_keysym_t prevSym = xkb_state_key_get_one_sym(queryState.get(), code);
-            if (prevSym == sym) {
-                sym = XKB_KEY_NoSymbol;
-                break;
-            }
-        }
-    }
-
     return sym;
 }
 
diff --git a/src/gui/platform/unix/qxkbcommon_p.h b/src/gui/platform/unix/qxkbcommon_p.h
index 96a209cb..8e6613d2 100644
--- a/src/gui/platform/unix/qxkbcommon_p.h
+++ b/src/gui/platform/unix/qxkbcommon_p.h
@@ -44,7 +44,7 @@ public:
     static int keysymToQtKey(xkb_keysym_t keysym, Qt::KeyboardModifiers modifiers);
     static int keysymToQtKey(xkb_keysym_t keysym, Qt::KeyboardModifiers modifiers,
                              xkb_state *state, xkb_keycode_t code,
-                             bool superAsMeta = false, bool hyperAsMeta = false);
+                             bool superAsMeta = true, bool hyperAsMeta = true);
 
     // xkbcommon_* API is part of libxkbcommon internals, with modifications as
     // described in the header of the implementation file.
diff --git a/src/gui/platform/wasm/qlocalfileapi.cpp b/src/gui/platform/wasm/qlocalfileapi.cpp
index 54018898..76b99361 100644
--- a/src/gui/platform/wasm/qlocalfileapi.cpp
+++ b/src/gui/platform/wasm/qlocalfileapi.cpp
@@ -195,7 +195,7 @@ emscripten::val makeSaveFileOptions(const QStringList &filterList, const std::st
     if (!suggestedName.empty())
         options.set("suggestedName", emscripten::val(suggestedName));
 
-    if (auto typeList = LocalFileApi::qtFilterListToTypes(filterList))
+    if (auto typeList = qtFilterListToTypes(filterList))
         options.set("types", emscripten::val(std::move(*typeList)));
 
     return options;
@@ -206,6 +206,6 @@ std::string makeFileInputAccept(const QStringList &filterList)
     return qtFilterListToFileInputAccept(filterList);
 }
 
-}  // namespace LocalFileApi
+} // namespace LocalFileApi
 
 QT_END_NAMESPACE
diff --git a/src/gui/platform/wasm/qlocalfileapi_p.h b/src/gui/platform/wasm/qlocalfileapi_p.h
index 05e9a6c7..1398d674 100644
--- a/src/gui/platform/wasm/qlocalfileapi_p.h
+++ b/src/gui/platform/wasm/qlocalfileapi_p.h
@@ -24,7 +24,8 @@
 QT_BEGIN_NAMESPACE
 
 namespace LocalFileApi {
-class Q_CORE_EXPORT Type {
+class Q_AUTOTEST_EXPORT Type
+{
 public:
     class Accept {
     public:
@@ -50,6 +51,7 @@ public:
             void addExtension(Extension type);
 
             const std::vector<Extension> &extensions() const { return m_extensions; }
+
         private:
             std::vector<Extension> m_extensions;
         };
@@ -79,9 +81,12 @@ private:
     std::optional<Accept> m_accept;
 };
 
-Q_CORE_EXPORT emscripten::val makeOpenFileOptions(const QStringList &filterList, bool acceptMultiple);
-Q_CORE_EXPORT emscripten::val makeSaveFileOptions(const QStringList &filterList, const std::string& suggestedName);
-Q_CORE_EXPORT std::string makeFileInputAccept(const QStringList &filterList);
+Q_AUTOTEST_EXPORT emscripten::val makeOpenFileOptions(const QStringList &filterList,
+                                                      bool acceptMultiple);
+Q_AUTOTEST_EXPORT emscripten::val makeSaveFileOptions(const QStringList &filterList,
+                                                      const std::string &suggestedName);
+
+Q_AUTOTEST_EXPORT std::string makeFileInputAccept(const QStringList &filterList);
 
 }  // namespace LocalFileApi
 QT_END_NAMESPACE
diff --git a/src/gui/platform/wasm/qwasmlocalfileaccess.cpp b/src/gui/platform/wasm/qwasmlocalfileaccess.cpp
index 0c613b11..a946cda0 100644
--- a/src/gui/platform/wasm/qwasmlocalfileaccess.cpp
+++ b/src/gui/platform/wasm/qwasmlocalfileaccess.cpp
@@ -141,7 +141,7 @@ QStringList makeFilterList(const std::string &qtAcceptList)
     auto filter = QString::fromStdString(qtAcceptList); 
     if (filter.isEmpty())
         return QStringList();
-    auto sep = QStringLiteral(";;");
+    QString sep(";;");
     if (!filter.contains(sep) && filter.contains(u'\n'))
         sep = u'\n';
 
diff --git a/src/gui/platform/wasm/qwasmnativeinterface.cpp b/src/gui/platform/wasm/qwasmnativeinterface.cpp
new file mode 100644
index 00000000..7313629a
--- /dev/null
+++ b/src/gui/platform/wasm/qwasmnativeinterface.cpp
@@ -0,0 +1,17 @@
+// Copyright (C) 2023 The Qt Company Ltd.
+// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
+
+
+
+#include <QtGui/private/qguiapplication_p.h>
+#include <qpa/qplatformintegration.h>
+#include <qpa/qplatformwindow_p.h>
+
+
+QT_BEGIN_NAMESPACE
+
+using namespace QNativeInterface::Private;
+
+QT_DEFINE_PRIVATE_NATIVE_INTERFACE(QWasmWindow);
+
+QT_END_NAMESPACE
diff --git a/src/gui/rhi/MiniEngine_LICENSE.txt b/src/gui/rhi/MiniEngine_LICENSE.txt
new file mode 100644
index 00000000..b8b569d7
--- /dev/null
+++ b/src/gui/rhi/MiniEngine_LICENSE.txt
@@ -0,0 +1,22 @@
+The MIT License (MIT)
+
+Copyright (c) 2015 Microsoft
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
+
diff --git a/src/gui/rhi/cs_mipmap_p.h b/src/gui/rhi/cs_mipmap_p.h
new file mode 100644
index 00000000..317cbe7b
--- /dev/null
+++ b/src/gui/rhi/cs_mipmap_p.h
@@ -0,0 +1,939 @@
+// Copyright (C) 2023 The Qt Company Ltd.
+// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
+
+#ifndef CS_MIPMAP_P_H
+#define CS_MIPMAP_P_H
+
+//
+//  W A R N I N G
+//  -------------
+//
+// This file is not part of the Qt API.  It exists for the convenience
+// of other Qt classes.  This header file may change from version to
+// version without notice, or even be removed.
+//
+// We mean it.
+//
+
+#include <QtCore/private/qglobal_p.h>
+
+#ifdef Q_OS_WIN
+
+#include <qt_windows.h>
+
+#if 0
+//
+// Generated by Microsoft (R) HLSL Shader Compiler 10.1
+//
+//
+// Buffer Definitions: 
+//
+// cbuffer CB0
+// {
+//
+//   uint SrcMipLevel;                  // Offset:    0 Size:     4
+//   uint NumMipLevels;                 // Offset:    4 Size:     4
+//   float2 TexelSize;                  // Offset:    8 Size:     8
+//
+// }
+//
+//
+// Resource Bindings:
+//
+// Name                                 Type  Format         Dim      HLSL Bind  Count
+// ------------------------------ ---------- ------- ----------- -------------- ------
+// BilinearClamp                     sampler      NA          NA             s0      1 
+// SrcMip                            texture  float4          2d             t0      1 
+// OutMip1                               UAV  float4          2d             u0      1 
+// OutMip2                               UAV  float4          2d             u1      1 
+// OutMip3                               UAV  float4          2d             u2      1 
+// OutMip4                               UAV  float4          2d             u3      1 
+// CB0                               cbuffer      NA          NA            cb0      1 
+//
+//
+//
+// Input signature:
+//
+// Name                 Index   Mask Register SysValue  Format   Used
+// -------------------- ----- ------ -------- -------- ------- ------
+// no Input
+//
+// Output signature:
+//
+// Name                 Index   Mask Register SysValue  Format   Used
+// -------------------- ----- ------ -------- -------- ------- ------
+// no Output
+cs_5_0
+dcl_globalFlags refactoringAllowed
+dcl_constantbuffer CB0[1], immediateIndexed
+dcl_sampler s0, mode_default
+dcl_resource_texture2d (float,float,float,float) t0
+dcl_uav_typed_texture2d (float,float,float,float) u0
+dcl_uav_typed_texture2d (float,float,float,float) u1
+dcl_uav_typed_texture2d (float,float,float,float) u2
+dcl_uav_typed_texture2d (float,float,float,float) u3
+dcl_input vThreadIDInGroupFlattened
+dcl_input vThreadID.xy
+dcl_temps 6
+dcl_tgsm_structured g0, 4, 64
+dcl_tgsm_structured g1, 4, 64
+dcl_tgsm_structured g2, 4, 64
+dcl_tgsm_structured g3, 4, 64
+dcl_thread_group 8, 8, 1
+utof r0.xy, vThreadID.xyxx
+add r0.xy, r0.xyxx, l(0.250000, 0.250000, 0.000000, 0.000000)
+mul r0.zw, r0.xxxy, cb0[0].zzzw
+utof r1.x, cb0[0].x
+sample_l_indexable(texture2d)(float,float,float,float) r2.xyzw, r0.zwzz, t0.xyzw, s0, r1.x
+mul r3.xyz, cb0[0].zwzz, l(0.500000, 0.500000, 0.500000, 0.000000)
+mov r3.w, l(0)
+mad r3.xyzw, cb0[0].zwzw, r0.xyxy, r3.zwxy
+sample_l_indexable(texture2d)(float,float,float,float) r4.xyzw, r3.xyxx, t0.xyzw, s0, r1.x
+add r2.xyzw, r2.xyzw, r4.xyzw
+mov r3.x, l(0)
+mul r3.y, cb0[0].w, l(0.500000)
+mad r0.xy, cb0[0].zwzz, r0.xyxx, r3.xyxx
+sample_l_indexable(texture2d)(float,float,float,float) r0.xyzw, r0.xyxx, t0.xyzw, s0, r1.x
+add r0.xyzw, r0.xyzw, r2.xyzw
+sample_l_indexable(texture2d)(float,float,float,float) r1.xyzw, r3.zwzz, t0.xyzw, s0, r1.x
+add r0.xyzw, r0.xyzw, r1.xyzw
+mul r1.xyzw, r0.xyzw, l(0.250000, 0.250000, 0.250000, 0.250000)
+store_uav_typed u0.xyzw, vThreadID.xyyy, r1.xyzw
+ieq r2.x, cb0[0].y, l(1)
+if_nz r2.x
+  ret 
+endif 
+store_structured g0.x, vThreadIDInGroupFlattened.x, l(0), r1.x
+store_structured g1.x, vThreadIDInGroupFlattened.x, l(0), r1.y
+store_structured g2.x, vThreadIDInGroupFlattened.x, l(0), r1.z
+store_structured g3.x, vThreadIDInGroupFlattened.x, l(0), r1.w
+sync_g_t
+and r2.x, vThreadIDInGroupFlattened.x, l(9)
+if_z r2.x
+  iadd r2.xyz, vThreadIDInGroupFlattened.xxxx, l(1, 8, 9, 0)
+  ld_structured r3.x, r2.x, l(0), g0.xxxx
+  ld_structured r3.y, r2.x, l(0), g1.xxxx
+  ld_structured r3.z, r2.x, l(0), g2.xxxx
+  ld_structured r3.w, r2.x, l(0), g3.xxxx
+  ld_structured r4.x, r2.y, l(0), g0.xxxx
+  ld_structured r4.y, r2.y, l(0), g1.xxxx
+  ld_structured r4.z, r2.y, l(0), g2.xxxx
+  ld_structured r4.w, r2.y, l(0), g3.xxxx
+  ld_structured r5.x, r2.z, l(0), g0.xxxx
+  ld_structured r5.y, r2.z, l(0), g1.xxxx
+  ld_structured r5.z, r2.z, l(0), g2.xxxx
+  ld_structured r5.w, r2.z, l(0), g3.xxxx
+  mad r0.xyzw, r0.xyzw, l(0.250000, 0.250000, 0.250000, 0.250000), r3.xyzw
+  add r0.xyzw, r4.xyzw, r0.xyzw
+  add r0.xyzw, r5.xyzw, r0.xyzw
+  mul r1.xyzw, r0.xyzw, l(0.250000, 0.250000, 0.250000, 0.250000)
+  ushr r0.xyzw, vThreadID.xyyy, l(1, 1, 1, 1)
+  store_uav_typed u1.xyzw, r0.xyzw, r1.xyzw
+  store_structured g0.x, vThreadIDInGroupFlattened.x, l(0), r1.x
+  store_structured g1.x, vThreadIDInGroupFlattened.x, l(0), r1.y
+  store_structured g2.x, vThreadIDInGroupFlattened.x, l(0), r1.z
+  store_structured g3.x, vThreadIDInGroupFlattened.x, l(0), r1.w
+endif 
+ieq r0.x, cb0[0].y, l(2)
+if_nz r0.x
+  ret 
+endif 
+sync_g_t
+and r0.x, vThreadIDInGroupFlattened.x, l(27)
+if_z r0.x
+  iadd r0.xyz, vThreadIDInGroupFlattened.xxxx, l(2, 16, 18, 0)
+  ld_structured r2.x, r0.x, l(0), g0.xxxx
+  ld_structured r2.y, r0.x, l(0), g1.xxxx
+  ld_structured r2.z, r0.x, l(0), g2.xxxx
+  ld_structured r2.w, r0.x, l(0), g3.xxxx
+  ld_structured r3.x, r0.y, l(0), g0.xxxx
+  ld_structured r3.y, r0.y, l(0), g1.xxxx
+  ld_structured r3.z, r0.y, l(0), g2.xxxx
+  ld_structured r3.w, r0.y, l(0), g3.xxxx
+  ld_structured r4.x, r0.z, l(0), g0.xxxx
+  ld_structured r4.y, r0.z, l(0), g1.xxxx
+  ld_structured r4.z, r0.z, l(0), g2.xxxx
+  ld_structured r4.w, r0.z, l(0), g3.xxxx
+  add r0.xyzw, r1.xyzw, r2.xyzw
+  add r0.xyzw, r3.xyzw, r0.xyzw
+  add r0.xyzw, r4.xyzw, r0.xyzw
+  mul r1.xyzw, r0.xyzw, l(0.250000, 0.250000, 0.250000, 0.250000)
+  ushr r0.xyzw, vThreadID.xyyy, l(2, 2, 2, 2)
+  store_uav_typed u2.xyzw, r0.xyzw, r1.xyzw
+  store_structured g0.x, vThreadIDInGroupFlattened.x, l(0), r1.x
+  store_structured g1.x, vThreadIDInGroupFlattened.x, l(0), r1.y
+  store_structured g2.x, vThreadIDInGroupFlattened.x, l(0), r1.z
+  store_structured g3.x, vThreadIDInGroupFlattened.x, l(0), r1.w
+endif 
+ieq r0.x, cb0[0].y, l(3)
+if_nz r0.x
+  ret 
+endif 
+sync_g_t
+if_z vThreadIDInGroupFlattened.x
+  ld_structured r0.x, l(4), l(0), g0.xxxx
+  ld_structured r0.y, l(4), l(0), g1.xxxx
+  ld_structured r0.z, l(4), l(0), g2.xxxx
+  ld_structured r0.w, l(4), l(0), g3.xxxx
+  ld_structured r2.x, l(32), l(0), g0.xxxx
+  ld_structured r2.y, l(32), l(0), g1.xxxx
+  ld_structured r2.z, l(32), l(0), g2.xxxx
+  ld_structured r2.w, l(32), l(0), g3.xxxx
+  ld_structured r3.x, l(36), l(0), g0.xxxx
+  ld_structured r3.y, l(36), l(0), g1.xxxx
+  ld_structured r3.z, l(36), l(0), g2.xxxx
+  ld_structured r3.w, l(36), l(0), g3.xxxx
+  add r0.xyzw, r0.xyzw, r1.xyzw
+  add r0.xyzw, r2.xyzw, r0.xyzw
+  add r0.xyzw, r3.xyzw, r0.xyzw
+  mul r0.xyzw, r0.xyzw, l(0.250000, 0.250000, 0.250000, 0.250000)
+  ushr r1.xyzw, vThreadID.xyyy, l(3, 3, 3, 3)
+  store_uav_typed u3.xyzw, r1.xyzw, r0.xyzw
+endif 
+ret 
+// Approximately 111 instruction slots used
+#endif
+
+inline constexpr BYTE g_csMipmap[] =
+{
+     68,  88,  66,  67, 133, 122, 
+      5, 181, 163, 163, 140, 185, 
+    158, 179,   4,  65, 180, 238, 
+    158,  10,   1,   0,   0,   0, 
+     60,  17,   0,   0,   5,   0, 
+      0,   0,  52,   0,   0,   0, 
+    200,   2,   0,   0, 216,   2, 
+      0,   0, 232,   2,   0,   0, 
+    160,  16,   0,   0,  82,  68, 
+     69,  70, 140,   2,   0,   0, 
+      1,   0,   0,   0,  88,   1, 
+      0,   0,   7,   0,   0,   0, 
+     60,   0,   0,   0,   0,   5, 
+     83,  67,   0,   1,   0,   0, 
+    100,   2,   0,   0,  82,  68, 
+     49,  49,  60,   0,   0,   0, 
+     24,   0,   0,   0,  32,   0, 
+      0,   0,  40,   0,   0,   0, 
+     36,   0,   0,   0,  12,   0, 
+      0,   0,   0,   0,   0,   0, 
+     28,   1,   0,   0,   3,   0, 
+      0,   0,   0,   0,   0,   0, 
+      0,   0,   0,   0,   0,   0, 
+      0,   0,   0,   0,   0,   0, 
+      1,   0,   0,   0,   1,   0, 
+      0,   0,  42,   1,   0,   0, 
+      2,   0,   0,   0,   5,   0, 
+      0,   0,   4,   0,   0,   0, 
+    255, 255, 255, 255,   0,   0, 
+      0,   0,   1,   0,   0,   0, 
+     13,   0,   0,   0,  49,   1, 
+      0,   0,   4,   0,   0,   0, 
+      5,   0,   0,   0,   4,   0, 
+      0,   0, 255, 255, 255, 255, 
+      0,   0,   0,   0,   1,   0, 
+      0,   0,  13,   0,   0,   0, 
+     57,   1,   0,   0,   4,   0, 
+      0,   0,   5,   0,   0,   0, 
+      4,   0,   0,   0, 255, 255, 
+    255, 255,   1,   0,   0,   0, 
+      1,   0,   0,   0,  13,   0, 
+      0,   0,  65,   1,   0,   0, 
+      4,   0,   0,   0,   5,   0, 
+      0,   0,   4,   0,   0,   0, 
+    255, 255, 255, 255,   2,   0, 
+      0,   0,   1,   0,   0,   0, 
+     13,   0,   0,   0,  73,   1, 
+      0,   0,   4,   0,   0,   0, 
+      5,   0,   0,   0,   4,   0, 
+      0,   0, 255, 255, 255, 255, 
+      3,   0,   0,   0,   1,   0, 
+      0,   0,  13,   0,   0,   0, 
+     81,   1,   0,   0,   0,   0, 
+      0,   0,   0,   0,   0,   0, 
+      0,   0,   0,   0,   0,   0, 
+      0,   0,   0,   0,   0,   0, 
+      1,   0,   0,   0,   1,   0, 
+      0,   0,  66, 105, 108, 105, 
+    110, 101,  97, 114,  67, 108, 
+     97, 109, 112,   0,  83, 114, 
+     99,  77, 105, 112,   0,  79, 
+    117, 116,  77, 105, 112,  49, 
+      0,  79, 117, 116,  77, 105, 
+    112,  50,   0,  79, 117, 116, 
+     77, 105, 112,  51,   0,  79, 
+    117, 116,  77, 105, 112,  52, 
+      0,  67,  66,  48,   0, 171, 
+    171, 171,  81,   1,   0,   0, 
+      3,   0,   0,   0, 112,   1, 
+      0,   0,  16,   0,   0,   0, 
+      0,   0,   0,   0,   0,   0, 
+      0,   0, 232,   1,   0,   0, 
+      0,   0,   0,   0,   4,   0, 
+      0,   0,   2,   0,   0,   0, 
+    252,   1,   0,   0,   0,   0, 
+      0,   0, 255, 255, 255, 255, 
+      0,   0,   0,   0, 255, 255, 
+    255, 255,   0,   0,   0,   0, 
+     32,   2,   0,   0,   4,   0, 
+      0,   0,   4,   0,   0,   0, 
+      2,   0,   0,   0, 252,   1, 
+      0,   0,   0,   0,   0,   0, 
+    255, 255, 255, 255,   0,   0, 
+      0,   0, 255, 255, 255, 255, 
+      0,   0,   0,   0,  45,   2, 
+      0,   0,   8,   0,   0,   0, 
+      8,   0,   0,   0,   2,   0, 
+      0,   0,  64,   2,   0,   0, 
+      0,   0,   0,   0, 255, 255, 
+    255, 255,   0,   0,   0,   0, 
+    255, 255, 255, 255,   0,   0, 
+      0,   0,  83, 114,  99,  77, 
+    105, 112,  76, 101, 118, 101, 
+    108,   0, 100, 119, 111, 114, 
+    100,   0, 171, 171,   0,   0, 
+     19,   0,   1,   0,   1,   0, 
+      0,   0,   0,   0,   0,   0, 
+      0,   0,   0,   0,   0,   0, 
+      0,   0,   0,   0,   0,   0, 
+      0,   0,   0,   0,   0,   0, 
+    244,   1,   0,   0,  78, 117, 
+    109,  77, 105, 112,  76, 101, 
+    118, 101, 108, 115,   0,  84, 
+    101, 120, 101, 108,  83, 105, 
+    122, 101,   0, 102, 108, 111, 
+     97, 116,  50,   0, 171, 171, 
+      1,   0,   3,   0,   1,   0, 
+      2,   0,   0,   0,   0,   0, 
+      0,   0,   0,   0,   0,   0, 
+      0,   0,   0,   0,   0,   0, 
+      0,   0,   0,   0,   0,   0, 
+      0,   0,  55,   2,   0,   0, 
+     77, 105,  99, 114, 111, 115, 
+    111, 102, 116,  32,  40,  82, 
+     41,  32,  72,  76,  83,  76, 
+     32,  83, 104,  97, 100, 101, 
+    114,  32,  67, 111, 109, 112, 
+    105, 108, 101, 114,  32,  49, 
+     48,  46,  49,   0,  73,  83, 
+     71,  78,   8,   0,   0,   0, 
+      0,   0,   0,   0,   8,   0, 
+      0,   0,  79,  83,  71,  78, 
+      8,   0,   0,   0,   0,   0, 
+      0,   0,   8,   0,   0,   0, 
+     83,  72,  69,  88, 176,  13, 
+      0,   0,  80,   0,   5,   0, 
+    108,   3,   0,   0, 106,   8, 
+      0,   1,  89,   0,   0,   4, 
+     70, 142,  32,   0,   0,   0, 
+      0,   0,   1,   0,   0,   0, 
+     90,   0,   0,   3,   0,  96, 
+     16,   0,   0,   0,   0,   0, 
+     88,  24,   0,   4,   0, 112, 
+     16,   0,   0,   0,   0,   0, 
+     85,  85,   0,   0, 156,  24, 
+      0,   4,   0, 224,  17,   0, 
+      0,   0,   0,   0,  85,  85, 
+      0,   0, 156,  24,   0,   4, 
+      0, 224,  17,   0,   1,   0, 
+      0,   0,  85,  85,   0,   0, 
+    156,  24,   0,   4,   0, 224, 
+     17,   0,   2,   0,   0,   0, 
+     85,  85,   0,   0, 156,  24, 
+      0,   4,   0, 224,  17,   0, 
+      3,   0,   0,   0,  85,  85, 
+      0,   0,  95,   0,   0,   2, 
+      0,  64,   2,   0,  95,   0, 
+      0,   2,  50,   0,   2,   0, 
+    104,   0,   0,   2,   6,   0, 
+      0,   0, 160,   0,   0,   5, 
+      0, 240,  17,   0,   0,   0, 
+      0,   0,   4,   0,   0,   0, 
+     64,   0,   0,   0, 160,   0, 
+      0,   5,   0, 240,  17,   0, 
+      1,   0,   0,   0,   4,   0, 
+      0,   0,  64,   0,   0,   0, 
+    160,   0,   0,   5,   0, 240, 
+     17,   0,   2,   0,   0,   0, 
+      4,   0,   0,   0,  64,   0, 
+      0,   0, 160,   0,   0,   5, 
+      0, 240,  17,   0,   3,   0, 
+      0,   0,   4,   0,   0,   0, 
+     64,   0,   0,   0, 155,   0, 
+      0,   4,   8,   0,   0,   0, 
+      8,   0,   0,   0,   1,   0, 
+      0,   0,  86,   0,   0,   4, 
+     50,   0,  16,   0,   0,   0, 
+      0,   0,  70,   0,   2,   0, 
+      0,   0,   0,  10,  50,   0, 
+     16,   0,   0,   0,   0,   0, 
+     70,   0,  16,   0,   0,   0, 
+      0,   0,   2,  64,   0,   0, 
+      0,   0, 128,  62,   0,   0, 
+    128,  62,   0,   0,   0,   0, 
+      0,   0,   0,   0,  56,   0, 
+      0,   8, 194,   0,  16,   0, 
+      0,   0,   0,   0,   6,   4, 
+     16,   0,   0,   0,   0,   0, 
+    166, 142,  32,   0,   0,   0, 
+      0,   0,   0,   0,   0,   0, 
+     86,   0,   0,   6,  18,   0, 
+     16,   0,   1,   0,   0,   0, 
+     10, 128,  32,   0,   0,   0, 
+      0,   0,   0,   0,   0,   0, 
+     72,   0,   0, 141, 194,   0, 
+      0, 128,  67,  85,  21,   0, 
+    242,   0,  16,   0,   2,   0, 
+      0,   0, 230,  10,  16,   0, 
+      0,   0,   0,   0,  70, 126, 
+     16,   0,   0,   0,   0,   0, 
+      0,  96,  16,   0,   0,   0, 
+      0,   0,  10,   0,  16,   0, 
+      1,   0,   0,   0,  56,   0, 
+      0,  11, 114,   0,  16,   0, 
+      3,   0,   0,   0, 230, 138, 
+     32,   0,   0,   0,   0,   0, 
+      0,   0,   0,   0,   2,  64, 
+      0,   0,   0,   0,   0,  63, 
+      0,   0,   0,  63,   0,   0, 
+      0,  63,   0,   0,   0,   0, 
+     54,   0,   0,   5, 130,   0, 
+     16,   0,   3,   0,   0,   0, 
+      1,  64,   0,   0,   0,   0, 
+      0,   0,  50,   0,   0,  10, 
+    242,   0,  16,   0,   3,   0, 
+      0,   0, 230, 142,  32,   0, 
+      0,   0,   0,   0,   0,   0, 
+      0,   0,  70,   4,  16,   0, 
+      0,   0,   0,   0, 230,   4, 
+     16,   0,   3,   0,   0,   0, 
+     72,   0,   0, 141, 194,   0, 
+      0, 128,  67,  85,  21,   0, 
+    242,   0,  16,   0,   4,   0, 
+      0,   0,  70,   0,  16,   0, 
+      3,   0,   0,   0,  70, 126, 
+     16,   0,   0,   0,   0,   0, 
+      0,  96,  16,   0,   0,   0, 
+      0,   0,  10,   0,  16,   0, 
+      1,   0,   0,   0,   0,   0, 
+      0,   7, 242,   0,  16,   0, 
+      2,   0,   0,   0,  70,  14, 
+     16,   0,   2,   0,   0,   0, 
+     70,  14,  16,   0,   4,   0, 
+      0,   0,  54,   0,   0,   5, 
+     18,   0,  16,   0,   3,   0, 
+      0,   0,   1,  64,   0,   0, 
+      0,   0,   0,   0,  56,   0, 
+      0,   8,  34,   0,  16,   0, 
+      3,   0,   0,   0,  58, 128, 
+     32,   0,   0,   0,   0,   0, 
+      0,   0,   0,   0,   1,  64, 
+      0,   0,   0,   0,   0,  63, 
+     50,   0,   0,  10,  50,   0, 
+     16,   0,   0,   0,   0,   0, 
+    230, 138,  32,   0,   0,   0, 
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+      2,   0,   0,   0,   1,  64, 
+      0,   0,  32,   0,   0,   0, 
+      1,  64,   0,   0,   0,   0, 
+      0,   0,   6, 240,  17,   0, 
+      0,   0,   0,   0, 167,   0, 
+      0,   9,  34,   0,  16,   0, 
+      2,   0,   0,   0,   1,  64, 
+      0,   0,  32,   0,   0,   0, 
+      1,  64,   0,   0,   0,   0, 
+      0,   0,   6, 240,  17,   0, 
+      1,   0,   0,   0, 167,   0, 
+      0,   9,  66,   0,  16,   0, 
+      2,   0,   0,   0,   1,  64, 
+      0,   0,  32,   0,   0,   0, 
+      1,  64,   0,   0,   0,   0, 
+      0,   0,   6, 240,  17,   0, 
+      2,   0,   0,   0, 167,   0, 
+      0,   9, 130,   0,  16,   0, 
+      2,   0,   0,   0,   1,  64, 
+      0,   0,  32,   0,   0,   0, 
+      1,  64,   0,   0,   0,   0, 
+      0,   0,   6, 240,  17,   0, 
+      3,   0,   0,   0, 167,   0, 
+      0,   9,  18,   0,  16,   0, 
+      3,   0,   0,   0,   1,  64, 
+      0,   0,  36,   0,   0,   0, 
+      1,  64,   0,   0,   0,   0, 
+      0,   0,   6, 240,  17,   0, 
+      0,   0,   0,   0, 167,   0, 
+      0,   9,  34,   0,  16,   0, 
+      3,   0,   0,   0,   1,  64, 
+      0,   0,  36,   0,   0,   0, 
+      1,  64,   0,   0,   0,   0, 
+      0,   0,   6, 240,  17,   0, 
+      1,   0,   0,   0, 167,   0, 
+      0,   9,  66,   0,  16,   0, 
+      3,   0,   0,   0,   1,  64, 
+      0,   0,  36,   0,   0,   0, 
+      1,  64,   0,   0,   0,   0, 
+      0,   0,   6, 240,  17,   0, 
+      2,   0,   0,   0, 167,   0, 
+      0,   9, 130,   0,  16,   0, 
+      3,   0,   0,   0,   1,  64, 
+      0,   0,  36,   0,   0,   0, 
+      1,  64,   0,   0,   0,   0, 
+      0,   0,   6, 240,  17,   0, 
+      3,   0,   0,   0,   0,   0, 
+      0,   7, 242,   0,  16,   0, 
+      0,   0,   0,   0,  70,  14, 
+     16,   0,   0,   0,   0,   0, 
+     70,  14,  16,   0,   1,   0, 
+      0,   0,   0,   0,   0,   7, 
+    242,   0,  16,   0,   0,   0, 
+      0,   0,  70,  14,  16,   0, 
+      2,   0,   0,   0,  70,  14, 
+     16,   0,   0,   0,   0,   0, 
+      0,   0,   0,   7, 242,   0, 
+     16,   0,   0,   0,   0,   0, 
+     70,  14,  16,   0,   3,   0, 
+      0,   0,  70,  14,  16,   0, 
+      0,   0,   0,   0,  56,   0, 
+      0,  10, 242,   0,  16,   0, 
+      0,   0,   0,   0,  70,  14, 
+     16,   0,   0,   0,   0,   0, 
+      2,  64,   0,   0,   0,   0, 
+    128,  62,   0,   0, 128,  62, 
+      0,   0, 128,  62,   0,   0, 
+    128,  62,  85,   0,   0,   9, 
+    242,   0,  16,   0,   1,   0, 
+      0,   0,  70,   5,   2,   0, 
+      2,  64,   0,   0,   3,   0, 
+      0,   0,   3,   0,   0,   0, 
+      3,   0,   0,   0,   3,   0, 
+      0,   0, 164,   0,   0,   7, 
+    242, 224,  17,   0,   3,   0, 
+      0,   0,  70,  14,  16,   0, 
+      1,   0,   0,   0,  70,  14, 
+     16,   0,   0,   0,   0,   0, 
+     21,   0,   0,   1,  62,   0, 
+      0,   1,  83,  84,  65,  84, 
+    148,   0,   0,   0, 111,   0, 
+      0,   0,   6,   0,   0,   0, 
+      0,   0,   0,   0,   2,   0, 
+      0,   0,  22,   0,   0,   0, 
+      5,   0,   0,   0,   5,   0, 
+      0,   0,   4,   0,   0,   0, 
+      6,   0,   0,   0,   0,   0, 
+      0,   0,   0,   0,   0,   0, 
+      0,   0,   0,   0,   0,   0, 
+      0,   0,   0,   0,   0,   0, 
+      0,   0,   0,   0,   4,   0, 
+      0,   0,   0,   0,   0,   0, 
+      0,   0,   0,   0,   0,   0, 
+      0,   0,   2,   0,   0,   0, 
+      0,   0,   0,   0,   2,   0, 
+      0,   0,   0,   0,   0,   0, 
+      0,   0,   0,   0,   0,   0, 
+      0,   0,   0,   0,   0,   0, 
+      0,   0,   0,   0,   0,   0, 
+      0,   0,   0,   0,   0,   0, 
+      0,   0,   0,   0,   0,   0, 
+      0,   0,   0,   0,   0,   0, 
+      0,   0,   0,   0,   0,   0, 
+      0,   0,   3,   0,   0,   0, 
+      0,   0,   0,   0,   4,   0, 
+      0,   0
+};
+
+#endif // Q_OS_WIN
+
+#endif // CS_MIPMAP_P_H
diff --git a/src/gui/rhi/cs_tdr_p.h b/src/gui/rhi/cs_tdr_p.h
deleted file mode 100644
index de444200..00000000
--- a/src/gui/rhi/cs_tdr_p.h
+++ /dev/null
@@ -1,192 +0,0 @@
-// Copyright (C) 2021 The Qt Company Ltd.
-// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
-
-#ifndef CS_TDR_P_H
-#define CS_TDR_P_H
-
-//
-//  W A R N I N G
-//  -------------
-//
-// This file is not part of the Qt API.  It exists for the convenience
-// of other Qt classes.  This header file may change from version to
-// version without notice, or even be removed.
-//
-// We mean it.
-//
-
-#include <QtCore/private/qglobal_p.h>
-
-#ifdef Q_OS_WIN
-
-#include <qt_windows.h>
-
-#if 0
-//
-// Generated by Microsoft (R) HLSL Shader Compiler 10.1
-//
-//
-// Buffer Definitions:
-//
-// cbuffer ConstantBuffer
-// {
-//
-//   uint zero;                         // Offset:    0 Size:     4
-//
-// }
-//
-//
-// Resource Bindings:
-//
-// Name                                 Type  Format         Dim      HLSL Bind  Count
-// ------------------------------ ---------- ------- ----------- -------------- ------
-// uav                                   UAV    uint         buf             u0      1
-// ConstantBuffer                    cbuffer      NA          NA            cb0      1
-//
-//
-//
-// Input signature:
-//
-// Name                 Index   Mask Register SysValue  Format   Used
-// -------------------- ----- ------ -------- -------- ------- ------
-// no Input
-//
-// Output signature:
-//
-// Name                 Index   Mask Register SysValue  Format   Used
-// -------------------- ----- ------ -------- -------- ------- ------
-// no Output
-cs_5_0
-dcl_globalFlags refactoringAllowed
-dcl_constantbuffer CB0[1], immediateIndexed
-dcl_uav_typed_buffer (uint,uint,uint,uint) u0
-dcl_input vThreadID.x
-dcl_thread_group 256, 1, 1
-loop
-  breakc_nz cb0[0].x
-  store_uav_typed u0.xyzw, vThreadID.xxxx, cb0[0].xxxx
-endloop
-ret
-// Approximately 5 instruction slots used
-#endif
-
-inline constexpr BYTE g_killDeviceByTimingOut[] =
-{
-     68,  88,  66,  67, 217,  62,
-    220,  38, 136,  51,  86, 245,
-    161,  96,  18,  35, 141,  17,
-     26,  13,   1,   0,   0,   0,
-    164,   2,   0,   0,   5,   0,
-      0,   0,  52,   0,   0,   0,
-    100,   1,   0,   0, 116,   1,
-      0,   0, 132,   1,   0,   0,
-      8,   2,   0,   0,  82,  68,
-     69,  70,  40,   1,   0,   0,
-      1,   0,   0,   0, 144,   0,
-      0,   0,   2,   0,   0,   0,
-     60,   0,   0,   0,   0,   5,
-     83,  67,   0,   1,   0,   0,
-      0,   1,   0,   0,  82,  68,
-     49,  49,  60,   0,   0,   0,
-     24,   0,   0,   0,  32,   0,
-      0,   0,  40,   0,   0,   0,
-     36,   0,   0,   0,  12,   0,
-      0,   0,   0,   0,   0,   0,
-    124,   0,   0,   0,   4,   0,
-      0,   0,   4,   0,   0,   0,
-      1,   0,   0,   0, 255, 255,
-    255, 255,   0,   0,   0,   0,
-      1,   0,   0,   0,   0,   0,
-      0,   0, 128,   0,   0,   0,
-      0,   0,   0,   0,   0,   0,
-      0,   0,   0,   0,   0,   0,
-      0,   0,   0,   0,   0,   0,
-      0,   0,   1,   0,   0,   0,
-      0,   0,   0,   0, 117,  97,
-    118,   0,  67, 111, 110, 115,
-    116,  97, 110, 116,  66, 117,
-    102, 102, 101, 114,   0, 171,
-    128,   0,   0,   0,   1,   0,
-      0,   0, 168,   0,   0,   0,
-     16,   0,   0,   0,   0,   0,
-      0,   0,   0,   0,   0,   0,
-    208,   0,   0,   0,   0,   0,
-      0,   0,   4,   0,   0,   0,
-      2,   0,   0,   0, 220,   0,
-      0,   0,   0,   0,   0,   0,
-    255, 255, 255, 255,   0,   0,
-      0,   0, 255, 255, 255, 255,
-      0,   0,   0,   0, 122, 101,
-    114, 111,   0, 100, 119, 111,
-    114, 100,   0, 171,   0,   0,
-     19,   0,   1,   0,   1,   0,
-      0,   0,   0,   0,   0,   0,
-      0,   0,   0,   0,   0,   0,
-      0,   0,   0,   0,   0,   0,
-      0,   0,   0,   0,   0,   0,
-    213,   0,   0,   0,  77, 105,
-     99, 114, 111, 115, 111, 102,
-    116,  32,  40,  82,  41,  32,
-     72,  76,  83,  76,  32,  83,
-    104,  97, 100, 101, 114,  32,
-     67, 111, 109, 112, 105, 108,
-    101, 114,  32,  49,  48,  46,
-     49,   0,  73,  83,  71,  78,
-      8,   0,   0,   0,   0,   0,
-      0,   0,   8,   0,   0,   0,
-     79,  83,  71,  78,   8,   0,
-      0,   0,   0,   0,   0,   0,
-      8,   0,   0,   0,  83,  72,
-     69,  88, 124,   0,   0,   0,
-     80,   0,   5,   0,  31,   0,
-      0,   0, 106,   8,   0,   1,
-     89,   0,   0,   4,  70, 142,
-     32,   0,   0,   0,   0,   0,
-      1,   0,   0,   0, 156,   8,
-      0,   4,   0, 224,  17,   0,
-      0,   0,   0,   0,  68,  68,
-      0,   0,  95,   0,   0,   2,
-     18,   0,   2,   0, 155,   0,
-      0,   4,   0,   1,   0,   0,
-      1,   0,   0,   0,   1,   0,
-      0,   0,  48,   0,   0,   1,
-      3,   0,   4,   4,  10, 128,
-     32,   0,   0,   0,   0,   0,
-      0,   0,   0,   0, 164,   0,
-      0,   7, 242, 224,  17,   0,
-      0,   0,   0,   0,   6,   0,
-      2,   0,   6, 128,  32,   0,
-      0,   0,   0,   0,   0,   0,
-      0,   0,  22,   0,   0,   1,
-     62,   0,   0,   1,  83,  84,
-     65,  84, 148,   0,   0,   0,
-      5,   0,   0,   0,   0,   0,
-      0,   0,   0,   0,   0,   0,
-      1,   0,   0,   0,   0,   0,
-      0,   0,   0,   0,   0,   0,
-      0,   0,   0,   0,   2,   0,
-      0,   0,   0,   0,   0,   0,
-      0,   0,   0,   0,   0,   0,
-      0,   0,   0,   0,   0,   0,
-      0,   0,   0,   0,   0,   0,
-      0,   0,   0,   0,   0,   0,
-      0,   0,   0,   0,   0,   0,
-      0,   0,   0,   0,   0,   0,
-      0,   0,   0,   0,   0,   0,
-      0,   0,   0,   0,   0,   0,
-      0,   0,   0,   0,   0,   0,
-      0,   0,   0,   0,   0,   0,
-      0,   0,   0,   0,   0,   0,
-      0,   0,   0,   0,   0,   0,
-      0,   0,   0,   0,   0,   0,
-      0,   0,   0,   0,   0,   0,
-      0,   0,   0,   0,   0,   0,
-      0,   0,   0,   0,   0,   0,
-      0,   0,   0,   0,   0,   0,
-      0,   0,   0,   0,   0,   0,
-      1,   0,   0,   0
-};
-
-#endif // Q_OS_WIN
-
-#endif // CS_TDR_P_H
diff --git a/src/gui/rhi/mipmap.hlsl b/src/gui/rhi/mipmap.hlsl
new file mode 100644
index 00000000..ac293e07
--- /dev/null
+++ b/src/gui/rhi/mipmap.hlsl
@@ -0,0 +1,117 @@
+// Copyright (c) Microsoft. All rights reserved.
+// This code is licensed under the MIT License (MIT).
+// THIS CODE IS PROVIDED *AS IS* WITHOUT WARRANTY OF
+// ANY KIND, EITHER EXPRESS OR IMPLIED, INCLUDING ANY
+// IMPLIED WARRANTIES OF FITNESS FOR A PARTICULAR
+// PURPOSE, MERCHANTABILITY, OR NON-INFRINGEMENT.
+
+RWTexture2D<float4> OutMip1 : register(u0);
+RWTexture2D<float4> OutMip2 : register(u1);
+RWTexture2D<float4> OutMip3 : register(u2);
+RWTexture2D<float4> OutMip4 : register(u3);
+Texture2D<float4> SrcMip : register(t0);
+SamplerState BilinearClamp : register(s0);
+
+cbuffer CB0 : register(b0)
+{
+    uint SrcMipLevel;  // Texture level of source mip
+    uint NumMipLevels; // Number of OutMips to write: [1, 4]
+    float2 TexelSize;  // 1.0 / OutMip1.Dimensions
+}
+
+// The reason for separating channels is to reduce bank conflicts in the
+// local data memory controller.  A large stride will cause more threads
+// to collide on the same memory bank.
+groupshared float gs_R[64];
+groupshared float gs_G[64];
+groupshared float gs_B[64];
+groupshared float gs_A[64];
+
+void StoreColor( uint Index, float4 Color )
+{
+    gs_R[Index] = Color.r;
+    gs_G[Index] = Color.g;
+    gs_B[Index] = Color.b;
+    gs_A[Index] = Color.a;
+}
+
+float4 LoadColor( uint Index )
+{
+    return float4( gs_R[Index], gs_G[Index], gs_B[Index], gs_A[Index]);
+}
+
+[numthreads( 8, 8, 1 )]
+void csMain( uint GI : SV_GroupIndex, uint3 DTid : SV_DispatchThreadID )
+{
+    // Use 4 bilinear samples to guarantee we don't undersample when downsizing by more than 2x
+    // in both directions.
+    float2 UV1 = TexelSize * (DTid.xy + float2(0.25, 0.25));
+    float2 O = TexelSize * 0.5;
+    float4 Src1 = SrcMip.SampleLevel(BilinearClamp, UV1, SrcMipLevel);
+    Src1 += SrcMip.SampleLevel(BilinearClamp, UV1 + float2(O.x, 0.0), SrcMipLevel);
+    Src1 += SrcMip.SampleLevel(BilinearClamp, UV1 + float2(0.0, O.y), SrcMipLevel);
+    Src1 += SrcMip.SampleLevel(BilinearClamp, UV1 + float2(O.x, O.y), SrcMipLevel);
+    Src1 *= 0.25;
+
+    OutMip1[DTid.xy] = Src1;
+
+    // A scalar (constant) branch can exit all threads coherently.
+    if (NumMipLevels == 1)
+        return;
+
+    // Without lane swizzle operations, the only way to share data with other
+    // threads is through LDS.
+    StoreColor(GI, Src1);
+
+    // This guarantees all LDS writes are complete and that all threads have
+    // executed all instructions so far (and therefore have issued their LDS
+    // write instructions.)
+    GroupMemoryBarrierWithGroupSync();
+
+    // With low three bits for X and high three bits for Y, this bit mask
+    // (binary: 001001) checks that X and Y are even.
+    if ((GI & 0x9) == 0)
+    {
+        float4 Src2 = LoadColor(GI + 0x01);
+        float4 Src3 = LoadColor(GI + 0x08);
+        float4 Src4 = LoadColor(GI + 0x09);
+        Src1 = 0.25 * (Src1 + Src2 + Src3 + Src4);
+
+        OutMip2[DTid.xy / 2] = Src1;
+        StoreColor(GI, Src1);
+    }
+
+    if (NumMipLevels == 2)
+        return;
+
+    GroupMemoryBarrierWithGroupSync();
+
+    // This bit mask (binary: 011011) checks that X and Y are multiples of four.
+    if ((GI & 0x1B) == 0)
+    {
+        float4 Src2 = LoadColor(GI + 0x02);
+        float4 Src3 = LoadColor(GI + 0x10);
+        float4 Src4 = LoadColor(GI + 0x12);
+        Src1 = 0.25 * (Src1 + Src2 + Src3 + Src4);
+
+        OutMip3[DTid.xy / 4] = Src1;
+        StoreColor(GI, Src1);
+    }
+
+    if (NumMipLevels == 3)
+        return;
+
+    GroupMemoryBarrierWithGroupSync();
+
+    // This bit mask would be 111111 (X & Y multiples of 8), but only one
+    // thread fits that criteria.
+    if (GI == 0)
+    {
+        float4 Src2 = LoadColor(GI + 0x04);
+        float4 Src3 = LoadColor(GI + 0x20);
+        float4 Src4 = LoadColor(GI + 0x24);
+        Src1 = 0.25 * (Src1 + Src2 + Src3 + Src4);
+
+        OutMip4[DTid.xy / 8] = Src1;
+    }
+}
diff --git a/src/gui/rhi/qrhi.cpp b/src/gui/rhi/qrhi.cpp
index caa1ee17..294bcc69 100644
--- a/src/gui/rhi/qrhi.cpp
+++ b/src/gui/rhi/qrhi.cpp
@@ -1,22 +1,23 @@
-// Copyright (C) 2019 The Qt Company Ltd.
+// Copyright (C) 2023 The Qt Company Ltd.
 // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
 
-#include "qrhi_p_p.h"
+#include "qrhi_p.h"
 #include <qmath.h>
 #include <QLoggingCategory>
 
-#include "qrhinull_p_p.h"
+#include "qrhinull_p.h"
 #ifndef QT_NO_OPENGL
-#include "qrhigles2_p_p.h"
+#include "qrhigles2_p.h"
 #endif
 #if QT_CONFIG(vulkan)
-#include "qrhivulkan_p_p.h"
+#include "qrhivulkan_p.h"
 #endif
 #ifdef Q_OS_WIN
-#include "qrhid3d11_p_p.h"
+#include "qrhid3d11_p.h"
+#include "qrhid3d12_p.h"
 #endif
 #if defined(Q_OS_MACOS) || defined(Q_OS_IOS)
-#include "qrhimetal_p_p.h"
+#include "qrhimetal_p.h"
 #endif
 
 #include <memory>
@@ -27,8 +28,9 @@ Q_LOGGING_CATEGORY(QRHI_LOG_INFO, "qt.rhi.general")
 
 /*!
     \class QRhi
-    \internal
+    \ingroup painting-3D
     \inmodule QtGui
+    \since 6.6
 
     \brief Accelerated 2D/3D graphics API abstraction.
 
@@ -39,50 +41,53 @@ Q_LOGGING_CATEGORY(QRHI_LOG_INFO, "qt.rhi.general")
     \l{https://developer.apple.com/metal/}{Metal}, and
     \l{https://www.khronos.org/vulkan/}{Vulkan}.
 
-    Some of the main design goals are:
-
-    \list
-
-    \li Simple, minimal, understandable, extensible. Follow the proven path of the
-    Qt Quick scenegraph.
-
-    \li Aim to be a product - and in the bigger picture, part of a product (Qt) -
-    that is usable out of the box both by internal (such as, Qt Quick) and,
-    eventually, external users.
-
-    \li Not a complete 1:1 wrapper for any of the underlying APIs. The feature set
-    is tuned towards the needs of Qt's 2D and 3D offering (QPainter, Qt Quick, Qt
-    3D Studio). Iterate and evolve in a sustainable manner.
-
-    \li Intrinsically cross-platform, without reinventing: abstracting
-    cross-platform aspects of certain APIs (such as, OpenGL context creation and
-    windowing system interfaces, Vulkan instance and surface management) is not in
-    scope here. These are delegated to the existing QtGui facilities (QWindow,
-    QOpenGLContext, QVulkanInstance) and its backing QPA architecture.
-
-    \endlist
+    \warning The QRhi family of classes in the Qt Gui module, including QShader
+    and QShaderDescription, offer limited compatibility guarantees. There are
+    no source or binary compatibility guarantees for these classes, meaning the
+    API is only guaranteed to work with the Qt version the application was
+    developed against. Source incompatible changes are however aimed to be kept
+    at a minimum and will only be made in minor releases (6.7, 6.8, and so on).
+    To use these classes in an application, link to
+    \c{Qt::GuiPrivate} (if using CMake), and include the headers with the \c
+    rhi prefix, for example \c{#include <rhi/qrhi.h>}.
 
     Each QRhi instance is backed by a backend for a specific graphics API. The
     selection of the backend is a run time choice and is up to the application
     or library that creates the QRhi instance. Some backends are available on
     multiple platforms (OpenGL, Vulkan, Null), while APIs specific to a given
     platform are only available when running on the platform in question (Metal
-    on macOS/iOS/tvOS, Direct3D on Windows).
+    on macOS/iOS, Direct3D on Windows).
 
     The available backends currently are:
 
     \list
 
-    \li OpenGL 2.1 or OpenGL ES 2.0 or newer. Some extensions are utilized when
-    present, for example to enable multisample framebuffers.
+    \li OpenGL 2.1 / OpenGL ES 2.0 or newer. Some extensions and newer core
+    specification features are utilized when present, for example to enable
+    multisample framebuffers or compute shaders. Operating in core profile
+    contexts is supported as well. If necessary, applications can query the
+    \l{QRhi::Feature}{feature flags} at runtime to check for features that are
+    not supported in the OpenGL context backing the QRhi. The OpenGL backend
+    builds on QOpenGLContext, QOpenGLFunctions, and the related cross-platform
+    infrastructure of the Qt GUI module.
 
-    \li Direct3D 11.1
+    \li Direct3D 11.1 or newer, with Shader Model 5.0 or newer. When the D3D
+    runtime has no support for 11.1 features or Shader Model 5.0,
+    initialization using an accelerated graphics device will fail, but using
+    the
+    \l{https://learn.microsoft.com/en-us/windows/win32/direct3darticles/directx-warp}{software
+    adapter} is still an option.
 
-    \li Metal
+    \li Direct3D 12.0 or newer, with Shader Model 5.0 or newer. The D3D12
+    device is by default created with specifying a minimum feature level of
+    \c{D3D_FEATURE_LEVEL_11_0}.
 
-    \li Vulkan 1.0, optionally with some extensions that are part of Vulkan 1.1
+    \li Metal 1.2 or newer.
 
-    \li Null - A "dummy" backend that issues no graphics calls at all.
+    \li Vulkan 1.0 or newer, optionally utilizing some Vulkan 1.1 level
+    features.
+
+    \li Null, a "dummy" backend that issues no graphics calls at all.
 
     \endlist
 
@@ -92,15 +97,60 @@ Q_LOGGING_CATEGORY(QRHI_LOG_INFO, "qt.rhi.general")
     are then generated from that, together with reflection information (inputs,
     outputs, shader resources). This is then packed into easily and efficiently
     serializable QShader instances. The compilers and tools to generate such
-    shaders are not part of QRhi, but the core classes for using such shaders,
-    QShader and QShaderDescription, are.
+    shaders are not part of QRhi and the Qt GUI module, but the core classes
+    for using such shaders, QShader and QShaderDescription, are. The APIs and
+    tools for performing compilation and translation are part of the Qt Shader
+    Tools module.
 
-    \section2 Design Fundamentals
+    See the \l{RHI Window Example} for an introductory example of creating a
+    portable, cross-platform application that performs accelerated 3D rendering
+    onto a QWindow using QRhi.
+
+    \section1 An Impression of the API
+
+    To provide a quick look at the API with a short yet complete example that
+    does not involve window-related setup, the following is a complete,
+    runnable cross-platform application that renders 20 frames off-screen, and
+    then saves the generated images to files after reading back the texture
+    contents from the GPU. For an example that renders on-screen, which then
+    involves setting up a QWindow and a swapchain, refer to the
+    \l{RHI Window Example}.
+
+    For brevity, the initialization of the QRhi is done based on the platform:
+    the sample code here chooses Direct 3D 12 on Windows, Metal on macOS and
+    iOS, and Vulkan otherwise. OpenGL and Direct 3D 11 are never used by this
+    application, but support for those could be introduced with a few
+    additional lines.
+
+    \snippet rhioffscreen/main.cpp 0
+
+    The result of the application is 20 \c PNG images (frame0.png -
+    frame19.png). These contain a rotating triangle with varying opacity over a
+    green background.
+
+    The vertex and fragment shaders are expected to be processed and packaged
+    into \c{.qsb} files. The Vulkan-compatible GLSL source code is the
+    following:
+
+    \e color.vert
+    \snippet rhioffscreen/color.vert 0
+
+    \e color.frag
+    \snippet rhioffscreen/color.frag 0
+
+    To manually compile and transpile these shaders to a number of targets
+    (SPIR-V, HLSL, MSL, GLSL) and generate the \c{.qsb} files the application
+    loads at run time, run \c{qsb --qt6 color.vert -o color.vert.qsb} and
+    \c{qsb --qt6 color.frag -o color.frag.qsb}. Alternatively, the Qt Shader
+    Tools module offers build system integration for CMake, the
+    \c qt_add_shaders() CMake function, that can achieve the same at build time.
+
+    \section1 Design Fundamentals
 
     A QRhi cannot be instantiated directly. Instead, use the create()
     function. Delete the QRhi instance normally to release the graphics device.
 
-    \section3 Resources
+    \section2 Resources
 
     Instances of classes deriving from QRhiResource, such as, QRhiBuffer,
     QRhiTexture, etc., encapsulate zero, one, or more native graphics
@@ -108,10 +158,10 @@ Q_LOGGING_CATEGORY(QRHI_LOG_INFO, "qt.rhi.general")
     functions of the QRhi, such as, newBuffer(), newTexture(),
     newTextureRenderTarget(), newSwapChain().
 
-    \badcode
-        vbuf = rhi->newBuffer(QRhiBuffer::Immutable, QRhiBuffer::VertexBuffer, sizeof(vertexData));
-        if (!vbuf->create()) { error }
-        ...
+    \code
+        QRhiBuffer *vbuf = rhi->newBuffer(QRhiBuffer::Immutable, QRhiBuffer::VertexBuffer, sizeof(vertexData));
+        if (!vbuf->create()) { error(); }
+        // ...
         delete vbuf;
     \endcode
 
@@ -120,9 +170,10 @@ Q_LOGGING_CATEGORY(QRHI_LOG_INFO, "qt.rhi.general")
     \li The returned value from functions like newBuffer() is always owned by
     the caller.
 
-    \li Just creating a QRhiResource subclass never allocates or initializes any
-    native resources. That is only done when calling the \c create() function of a
-    subclass, for example, QRhiBuffer::create() or QRhiTexture::create().
+    \li Just creating an instance of a QRhiResource subclass never allocates or
+    initializes any native resources. That is only done when calling the
+    \c create() function of a subclass, for example, QRhiBuffer::create() or
+    QRhiTexture::create().
 
     \li The exceptions are
     QRhiTextureRenderTarget::newCompatibleRenderPassDescriptor(),
@@ -146,15 +197,15 @@ Q_LOGGING_CATEGORY(QRHI_LOG_INFO, "qt.rhi.general")
 
     \li Note that this does not mean that a QRhiResource can freely be
     destroy()'ed or deleted within a frame (that is, in a
-    \l{QRhiCommandBuffer::beginFrame()}{beginFrame()} -
-    \l{QRhiCommandBuffer::endFrame()}{endFrame()} section). As a general rule,
-    all referenced QRhiResource objects must stay unchanged until the frame is
-    submitted by calling \l{QRhiCommandBuffer::endFrame()}{endFrame()}. To ease
-    this, QRhiResource::deleteLater() is provided as a convenience.
+    \l{QRhi::beginFrame()}{beginFrame()} - \l{QRhi::endFrame()}{endFrame()}
+    section). As a general rule, all referenced QRhiResource objects must stay
+    unchanged until the frame is submitted by calling
+    \l{QRhi::endFrame()}{endFrame()}. To ease this,
+    QRhiResource::deleteLater() is provided as a convenience.
 
     \endlist
 
-    \section3 Command buffers and deferred command execution
+    \section2 Command buffers and deferred command execution
 
     Regardless of the design and capabilities of the underlying graphics API,
     all QRhi backends implement some level of command buffers. No
@@ -181,7 +232,7 @@ Q_LOGGING_CATEGORY(QRHI_LOG_INFO, "qt.rhi.general")
 
     As a general rule, all referenced QRhiResource objects must stay valid and
     unmodified until the frame is submitted by calling
-    \l{QRhiCommandBuffer::endFrame()}{endFrame()}. On the other hand, calling
+    \l{QRhi::endFrame()}{endFrame()}. On the other hand, calling
     \l{QRhiResource::destroy()}{destroy()} or deleting the QRhiResource are
     always safe once the frame is submitted, regardless of the status of the
     underlying native resources (which may still be in use by the GPU - but
@@ -189,10 +240,20 @@ Q_LOGGING_CATEGORY(QRHI_LOG_INFO, "qt.rhi.general")
 
     Unlike APIs like OpenGL, upload and copy type of commands cannot be mixed
     with draw commands. The typical renderer will involve a sequence similar to
-    the following: \c{(re)create resources} - \c{begin frame} - \c{record
-    uploads and copies} - \c{start renderpass} - \c{record draw calls} - \c{end
-    renderpass} - \c{end frame}. Recording copy type of operations happens via
-    QRhiResourceUpdateBatch. Such operations are committed typically on
+    the following:
+
+    \list
+    \li (re)create resources
+    \li begin frame
+    \li record/issue uploads and copies
+    \li start recording a render pass
+    \li record draw calls
+    \li end render pass
+    \li end frame
+    \endlist
+
+    Recording copy type of operations happens via QRhiResourceUpdateBatch. Such
+    operations are committed typically on
     \l{QRhiCommandBuffer::beginPass()}{beginPass()}.
 
     When working with legacy rendering engines designed for OpenGL, the
@@ -211,7 +272,7 @@ Q_LOGGING_CATEGORY(QRHI_LOG_INFO, "qt.rhi.general")
     remain the primary way of operating since this is what fits Qt's various UI
     technologies best.
 
-    \section3 Threading
+    \section2 Threading
 
     A QRhi instance and the associated resources can be created and used on any
     thread but all usage must be limited to that one single thread. When
@@ -240,7 +301,7 @@ Q_LOGGING_CATEGORY(QRHI_LOG_INFO, "qt.rhi.general")
     (gui) thread, but becomes important when a separate, dedicated render
     thread is used.
 
-    \section3 Resource synchronization
+    \section2 Resource synchronization
 
     QRhi does not expose APIs for resource barriers or image layout
     transitions. Such synchronization is done implicitly by the backends, where
@@ -260,7 +321,7 @@ Q_LOGGING_CATEGORY(QRHI_LOG_INFO, "qt.rhi.general")
     different access (one for load, one for store) is supported even within the
     same pass.
 
-    \section3 Resource reuse
+    \section2 Resource reuse
 
     From the user's point of view a QRhiResource is reusable immediately after
     calling QRhiResource::destroy(). With the exception of swapchains, calling
@@ -280,24 +341,24 @@ Q_LOGGING_CATEGORY(QRHI_LOG_INFO, "qt.rhi.general")
     though there is a good chance that under the hood the QRhiBuffer is now
     backed by a whole new native buffer.
 
-    \badcode
-        ubuf = rhi->newBuffer(QRhiBuffer::Dynamic, QRhiBuffer::UniformBuffer, 256);
+    \code
+        QRhiBuffer *ubuf = rhi->newBuffer(QRhiBuffer::Dynamic, QRhiBuffer::UniformBuffer, 256);
         ubuf->create();
 
-        srb = rhi->newShaderResourceBindings()
+        QRhiShaderResourceBindings *srb = rhi->newShaderResourceBindings()
         srb->setBindings({
             QRhiShaderResourceBinding::uniformBuffer(0, QRhiShaderResourceBinding::VertexStage | QRhiShaderResourceBinding::FragmentStage, ubuf)
         });
         srb->create();
 
-        ...
+        // ...
 
         // now in a later frame we need to grow the buffer to a larger size
         ubuf->setSize(512);
         ubuf->create(); // same as ubuf->destroy(); ubuf->create();
 
-        // That's it, srb needs no changes whatsoever, any references in it to
-        // ubuf stay valid. When it comes to internal details, such as that
+        // srb needs no changes whatsoever, any references in it to ubuf
+        // stay valid. When it comes to internal details, such as that
         // ubuf may now be backed by a completely different native buffer
         // resource, that is is recognized and handled automatically by the
         // next setShaderResources().
@@ -312,7 +373,7 @@ Q_LOGGING_CATEGORY(QRHI_LOG_INFO, "qt.rhi.general")
     resource underneath, without having to update the QRhiTextureRenderTarget
     as that will be done implicitly in beginPass().
 
-    \section3 Pooled objects
+    \section2 Pooled objects
 
     In addition to resources, there are pooled objects as well, such as,
     QRhiResourceUpdateBatch. An instance is retrieved via a \c next function,
@@ -322,24 +383,25 @@ Q_LOGGING_CATEGORY(QRHI_LOG_INFO, "qt.rhi.general")
     QRhiCommandBuffer::beginPass() or QRhiCommandBuffer::endPass(). These
     functions take care of returning the batch to the pool. Alternatively, a
     batch can be "canceled" and returned to the pool without processing by
-    calling QRhiResourceUpdateBatch::destroy().
+    calling QRhiResourceUpdateBatch::release().
 
     A typical pattern is thus:
 
-    \badcode
+    \code
         QRhiResourceUpdateBatch *resUpdates = rhi->nextResourceUpdateBatch();
-        ...
+        // ...
         resUpdates->updateDynamicBuffer(ubuf, 0, 64, mvp.constData());
         if (!image.isNull()) {
             resUpdates->uploadTexture(texture, image);
             image = QImage();
         }
-        ...
+        // ...
         QRhiCommandBuffer *cb = m_sc->currentFrameCommandBuffer();
+        // note the last argument
         cb->beginPass(swapchain->currentFrameRenderTarget(), clearCol, clearDs, resUpdates);
     \endcode
 
-    \section3 Swapchain specifics
+    \section2 Swapchain specifics
 
     QRhiSwapChain features some special semantics due to the peculiar nature of
     swapchains.
@@ -370,30 +432,174 @@ Q_LOGGING_CATEGORY(QRHI_LOG_INFO, "qt.rhi.general")
 
     \endlist
 
-    \section3 Ownership
+    \section2 Ownership
 
     The general rule is no ownership transfer. Creating a QRhi with an already
     existing graphics device does not mean the QRhi takes ownership of the
     device object. Similarly, ownership is not given away when a device or
     texture object is "exported" via QRhi::nativeHandles() or
-    QRhiTexture::nativeHandles(). Most importantly, passing pointers in structs
+    QRhiTexture::nativeTexture(). Most importantly, passing pointers in structs
     and via setters does not transfer ownership.
 
-    \section2 Troubleshooting
+    \section1 Troubleshooting and Profiling
 
-    Errors are printed to the output via qWarning(). Additional debug messages
-    can be enabled via the following logging categories. Messages from these
-    categories are not printed by default unless explicitly enabled via
-    QLoggingCategory or the \c QT_LOGGING_RULES environment variable.
+    \section2 Error reporting
+
+    Functions such as \l QRhi::create() and the resource classes' \c create()
+    member functions (e.g., \l QRhiBuffer::create()) indicate failure with the
+    return value (\nullptr or
+    \c false, respectively). When working with QShader, \l QShader::fromSerialized()
+    returns an invalid QShader (for which \l{QShader::isValid()}{isValid()} returns
+    \c false) when the data passed to the function cannot be successfully deserialized.
+    Some functions, beginFrame() in particular, may also sometimes report "soft failures",
+    such as \l FrameOpSwapChainOutOfDate, which do not indicate an unrecoverable error,
+    but rather should be seen as a "try again later" response.
+
+    Warnings and errors may get printed at any time to the debug output via
+    qWarning(). It is therefore always advisable to inspect the output of the
+    application.
+
+    Additional debug messages can be enabled via the following logging
+    categories. Messages from these categories are not printed by default
+    unless explicitly enabled via QLoggingCategory or the \c QT_LOGGING_RULES
+    environment variable. For better interoperation with Qt Quick, the
+    environment variable \c{QSG_INFO} also enables these debug prints.
 
     \list
     \li \c{qt.rhi.general}
     \endlist
 
-    It is strongly advised to inspect the output with the logging categories
-    (\c{qt.rhi.*}) enabled whenever a QRhi-based application is not behaving as
-    expected. For better interoperation with Qt Quick, the environment variable
-    \c{QSG_INFO} also enables these debug prints.
+    Additionally, applications can query the \l{QRhi::backendName()}{QRhi
+    backend name} and
+    \l{QRhi::driverInfo()}{graphics device information} from a successfully
+    initialized QRhi. This can then be printed to the user or stored in the
+    application logs even in production builds, if desired.
+
+    \section2 Investigating rendering problems
+
+    When the rendering results are not as expected, or the application is
+    experiencing problems, always consider checking with the the native 3D
+    APIs' debug and validation facilities. QRhi itself features limited error
+    checking since replicating the already existing, vast amount of
+    functionality in the underlying layers is not reasonable.
+
+    \list
+
+    \li For Vulkan, controlling the
+    \l{https://github.com/KhronosGroup/Vulkan-ValidationLayers}{Vulkan
+    Validation Layers} is not in the scope of the QRhi, but rather can be
+    achieved by configuring the \l QVulkanInstance with the appropriate layers.
+    For example, call \c{instance.setLayers({ "VK_LAYER_KHRONOS_validation" });}
+    before invoking \l{QVulkanInstance::create()}{create()} on the QVulkanInstance.
+    (note that this assumes that the validation layers are actually installed
+    and available, e.g. from the Vulkan SDK) By default, QVulkanInstance conveniently
+    redirects the Vulkan debug messages to qDebug, meaning the validation messages get
+    printed just like other Qt warnings.
+
+    \li With Direct 3D 11 and 12, a graphics device with the debug layer
+    enabled can be requested by toggling the \c enableDebugLayer flag in the
+    appropriate \l{QRhiD3D11InitParams}{init params struct}. The messages appear on the
+    debug output, which is visible in Qt Creator's messages panel or via a tool
+    such as \l{https://learn.microsoft.com/en-us/sysinternals/downloads/debugview}{DebugView}.
+
+    \li For Metal, controlling Metal Validation is outside of QRhi's scope.
+    Rather, to enable validation, run the application with the environment
+    variable \c{METAL_DEVICE_WRAPPER_TYPE=1} set, or run the application within
+    XCode. There may also be further settings and environment variable in modern
+    XCode and macOS versions. See for instance
+    \l{https://developer.apple.com/documentation/metal/diagnosing_metal_programming_issues_early}{this
+    page}.
+
+    \endlist
+
+    \section2 Frame captures and performance profiling
+
+    A Qt application rendering with QRhi to a window while relying on a 3D API
+    under the hood, is, from the windowing and graphics pipeline perspective at
+    least, no different from any other (non-Qt) applications using the same 3D
+    API. This means that tools and practices for debugging and profiling
+    applications involving 3D graphics, such as games, all apply to such a Qt
+    application as well.
+
+    A few examples of tools that can provide insights into the rendering
+    internals of Qt applications that use QRhi, which includes Qt Quick and Qt
+    Quick 3D based projects as well:
+
+    \list
+
+    \li \l{https://renderdoc.org/}{RenderDoc} allows taking frame captures and
+    introspecting the recorded commands and pipeline state on Windows and Linux
+    for applications using OpenGL, Vulkan, D3D11, or D3D12. When trying to
+    figure out why some parts of the 3D scene do not show up as expected,
+    RenderDoc is often a fast and efficient way to check the pipeline stages
+    and the related state and discover the missing or incorrect value. It is
+    also a tool that is actively used when developing Qt itself.
+
+    \li For NVIDIA-based systems,
+    \l{https://developer.nvidia.com/nsight-graphics}{Nsight Graphics} provides
+    a graphics debugger tool on Windows and Linux. In addition to investigating the commands
+    in the frame and the pipeline, the vendor-specific tools allow looking at timings and
+    hardware performance information, which is not something simple frame captures can provide.
+
+    \li For AMD-based systems, the \l{https://gpuopen.com/rgp/}{Radeon GPU
+    Profiler} can be used to gain deeper insights into the application's
+    rendering and its performance.
+
+    \li As QRhi supports Direct 3D 12, using
+    \l{https://devblogs.microsoft.com/pix/download/}{PIX}, a performance tuning
+    and debugging tool for DirectX 12 games on Windows is an option as well.
+
+    \li On macOS,
+    \l{https://developer.apple.com/documentation/metal/debugging_tools/viewing_your_gpu_workload_with_the_metal_debugger}{the
+    XCode Metal debugger} can be used to take and introspect frame
+    captures, to investigate performance details, and debug shaders. In macOS 13 it is also possible
+    to enable an overlay that displays frame rate and other information for any Metal-based window by
+    setting the environment variable \c{MTL_HUD_ENABLED=1}.
+
+    \endlist
+
+    On mobile and embedded platforms, there may be vendor and platform-specific
+    tools, provided by the GPU or SoC vendor, available to perform performance
+    profiling of application using OpenGL ES or Vulkan.
+
+    When capturing frames, remember that objects and groups of commands can be
+    named via debug markers, as long as \l{QRhi::EnableDebugMarkers}{debug
+    markers were enabled} for the QRhi, and the graphics API in use supports
+    this. To annotate the command stream, call
+    \l{QRhiCommandBuffer::debugMarkBegin()}{debugMarkBegin()},
+    \l{QRhiCommandBuffer::debugMarkEnd()}{debugMarkEnd()} and/or
+    \l{QRhiCommandBuffer::debugMarkMsg()}{debugMarkMsg()}.
+    This can be particularly useful in larger frames with multiple render passes.
+    Resources are named by calling \l{QRhiResource::setName()}{setName()} before create().
+
+    To perform basic timing measurements on the CPU and GPU side within the
+    application, \l QElapsedTimer and
+    \l QRhiCommandBuffer::lastCompletedGpuTime() can be used. The latter is
+    only available with select graphics APIs at the moment and requires opting
+    in via the \l QRhi::EnableTimestamps flag.
+
+    \section2 Resource leak checking
+
+    When destroying a QRhi object without properly destroying all buffers,
+    textures, and other resources created from it, warnings about this are
+    printed to the debug output whenever the application is a debug build, or
+    when the \c QT_RHI_LEAK_CHECK environment variable is set to a non-zero
+    value. This is a simple way to discover design issues around resource
+    handling within the application rendering logic. Note however that some
+    platforms and underlying graphics APIs may perform their own allocation and
+    resource leak detection as well, over which Qt will have no direct control.
+    For example, when using Vulkan, the memory allocator may raise failing
+    assertions in debug builds when resources that own graphics memory
+    allocations are not destroyed before the QRhi. In addition, the Vulkan
+    validation layer, when enabled, will issue warnings about native graphics
+    resources that were not released. Similarly, with Direct 3D warnings may
+    get printed about unreleased COM objects when the application does not
+    destroy the QRhi and its resources in the correct order.
+
+    \sa {RHI Window Example}, QRhiCommandBuffer, QRhiResourceUpdateBatch,
+    QRhiShaderResourceBindings, QShader, QRhiBuffer, QRhiTexture,
+    QRhiRenderBuffer, QRhiSampler, QRhiTextureRenderTarget,
+    QRhiGraphicsPipeline, QRhiComputePipeline, QRhiSwapChain
  */
 
 /*!
@@ -404,6 +610,7 @@ Q_LOGGING_CATEGORY(QRHI_LOG_INFO, "qt.rhi.general")
     \value Vulkan
     \value OpenGLES2
     \value D3D11
+    \value D3D12
     \value Metal
  */
 
@@ -411,13 +618,18 @@ Q_LOGGING_CATEGORY(QRHI_LOG_INFO, "qt.rhi.general")
     \enum QRhi::Flag
     Describes what special features to enable.
 
-    \value EnableProfiling This flag has currently no effect.
-
     \value EnableDebugMarkers Enables debug marker groups. Without this frame
     debugging features like making debug groups and custom resource name
     visible in external GPU debugging tools will not be available and functions
-    like QRhiCommandBuffer::debugMarkBegin() will become a no-op. Avoid
-    enabling in production builds as it may involve a performance penalty.
+    like QRhiCommandBuffer::debugMarkBegin() will become no-ops. Avoid enabling
+    in production builds as it may involve a small performance impact. Has no
+    effect when the QRhi::DebugMarkers feature is not reported as supported.
+
+    \value EnableTimestamps Enables GPU timestamp collection. When not set,
+    QRhiCommandBuffer::lastCompletedGpuTime() always returns 0. Enable this
+    only when needed since there may be a small amount of extra work involved
+    (e.g. timestamp queries), depending on the underlying graphics API. Has no
+    effect when the QRhi::Timestamps feature is not reported as supported.
 
     \value PreferSoftwareRenderer Indicates that backends should prefer
     choosing an adapter or physical device that renders in software on the CPU.
@@ -439,7 +651,7 @@ Q_LOGGING_CATEGORY(QRHI_LOG_INFO, "qt.rhi.general")
     mechanism because the cost of maintaining the related data structures is
     not insignificant with some backends. With Vulkan this feature maps
     directly to VkPipelineCache, vkGetPipelineCacheData and
-    VkPipelineCacheCreateInfo::pInitialData. With D3D11 there is no real
+    VkPipelineCacheCreateInfo::pInitialData. With Direct3D 11 there is no real
     pipline cache, but the results of HLSL->DXBC compilations are stored and
     can be serialized/deserialized via this mechanism. This allows skipping the
     time consuming D3DCompile() in future runs of the applications for shaders
@@ -488,8 +700,9 @@ Q_LOGGING_CATEGORY(QRHI_LOG_INFO, "qt.rhi.general")
     QRhiCommandBuffer::debugMarkBegin()) are supported.
 
     \value Timestamps Indicates that command buffer timestamps are supported.
-    Relevant for addGpuFrameTimeCallback(). Can be expected to be supported on
-    D3D11 and Vulkan, assuming the underlying implementation supports it.
+    Relevant for QRhiCommandBuffer::lastCompletedGpuTime(). Can be expected to
+    be supported on Metal, Vulkan, and Direct 3D, assuming the underlying
+    implementation supports timestamp queries or similar.
 
     \value Instancing Indicates that instanced drawing is supported. In
     practice this feature will be unsupported with OpenGL ES 2.0 and OpenGL
@@ -559,7 +772,7 @@ Q_LOGGING_CATEGORY(QRHI_LOG_INFO, "qt.rhi.general")
     \value WideLines Indicates that lines with a width other than 1 are
     supported. When reported as not supported, the line width set on the
     graphics pipeline state is ignored. This can always be false with some
-    backends (D3D11, Metal). With Vulkan, the value depends on the
+    backends (D3D11, D3D12, Metal). With Vulkan, the value depends on the
     implementation. With OpenGL, wide lines are not supported in core profile
     contexts.
 
@@ -587,7 +800,7 @@ Q_LOGGING_CATEGORY(QRHI_LOG_INFO, "qt.rhi.general")
 
     \value TriangleFanTopology Indicates that QRhiGraphicsPipeline::setTopology()
     supports QRhiGraphicsPipeline::TriangleFan. In practice this feature will be
-    unsupported with Metal and Direct 3D 11.
+    unsupported with Metal and Direct 3D 11/12.
 
     \value ReadBackNonUniformBuffer Indicates that
     \l{QRhiResourceUpdateBatch::readBackBuffer()}{reading buffer contents} is
@@ -720,7 +933,7 @@ Q_LOGGING_CATEGORY(QRHI_LOG_INFO, "qt.rhi.general")
     with image load/store. This feature is only available with some backends as
     it does not map well to all graphics APIs, and it is only meant to provide
     support for special cases anyhow. In practice the feature can be expected to
-    be supported with Direct3D 11 and Vulkan.
+    be supported with Direct3D 11/12 and Vulkan.
 
     \value NonFillPolygonMode Indicates that setting a PolygonMode other than
     the default Fill is supported for QRhiGraphicsPipeline. A common use case
@@ -731,11 +944,29 @@ Q_LOGGING_CATEGORY(QRHI_LOG_INFO, "qt.rhi.general")
     \value OneDimensionalTextures Indicates that 1D textures are supported.
     In practice this feature will be unsupported on OpenGL ES.
 
-    \value OneDimensionalTextureMipmaps Indicates that 1D texture mipmaps and
-    1D texture render targets are supported. In practice this feature will be
-    unsupported on backends that do not report support for
+    \value OneDimensionalTextureMipmaps Indicates that generating 1D texture
+    mipmaps are supported. In practice this feature will be unsupported on
+    backends that do not report support for
+    \l{OneDimensionalTextures}, Metal, and Direct 3D 12.
+
+    \value HalfAttributes Indicates that specifying input attributes with half
+    precision (16bit) floating point types for a shader pipeline is supported.
+    When not supported, build() will succeed but just show a warning message
+    and the values of the target attributes will be broken. In practice this
+    feature will be unsupported in some OpenGL ES 2.0 and OpenGL 2.x
+    implementations. Note that while Direct3D 11/12 does support half precision
+    input attributes, it does not support the half3 type. The D3D backends pass
+    half3 attributes as half4. To ensure cross platform compatibility, half3
+    inputs should be padded to 8 bytes.
+
+    \value RenderToOneDimensionalTexture Indicates that 1D texture render
+    targets are supported. In practice this feature will be unsupported on
+    backends that do not report support for
     \l{OneDimensionalTextures}, and Metal.
 
+    \value ThreeDimensionalTextureMipmaps Indicates that generating 3D texture
+    mipmaps are supported. In practice this feature will be unsupported with
+    Direct 3D 12.
  */
 
 /*!
@@ -847,22 +1078,28 @@ Q_LOGGING_CATEGORY(QRHI_LOG_INFO, "qt.rhi.general")
 
 /*!
     \class QRhiInitParams
-    \internal
     \inmodule QtGui
+    \since 6.6
     \brief Base class for backend-specific initialization parameters.
 
     Contains fields that are relevant to all backends.
+
+    \note This is a RHI API with limited compatibility guarantees, see \l QRhi
+    for details.
  */
 
 /*!
     \class QRhiDepthStencilClearValue
-    \internal
     \inmodule QtGui
+    \since 6.6
     \brief Specifies clear values for a depth or stencil buffer.
+
+    \note This is a RHI API with limited compatibility guarantees, see \l QRhi
+    for details.
  */
 
 /*!
-    \fn QRhiDepthStencilClearValue::QRhiDepthStencilClearValue()
+    \fn QRhiDepthStencilClearValue::QRhiDepthStencilClearValue() = default
 
     Constructs a depth/stencil clear value with depth clear value 1.0f and
     stencil clear value 0.
@@ -879,37 +1116,45 @@ QRhiDepthStencilClearValue::QRhiDepthStencilClearValue(float d, quint32 s)
 }
 
 /*!
-    \return \c true if the values in the two QRhiDepthStencilClearValue objects
-    \a a and \a b are equal.
-
-    \relates QRhiDepthStencilClearValue
+    \fn float QRhiDepthStencilClearValue::depthClearValue() const
+    \return the depth clear value. In most cases this is 1.0f.
  */
-bool operator==(const QRhiDepthStencilClearValue &a, const QRhiDepthStencilClearValue &b) noexcept
-{
-    return a.depthClearValue() == b.depthClearValue()
-            && a.stencilClearValue() == b.stencilClearValue();
-}
 
 /*!
+    \fn void QRhiDepthStencilClearValue::setDepthClearValue(float d)
+    Sets the depth clear value to \a d.
+ */
+
+/*!
+    \fn quint32 QRhiDepthStencilClearValue::stencilClearValue() const
+    \return the stencil clear value. In most cases this is 0.
+ */
+
+/*!
+    \fn void QRhiDepthStencilClearValue::setStencilClearValue(quint32 s)
+    Sets the stencil clear value to \a s.
+ */
+
+/*!
+    \fn bool QRhiDepthStencilClearValue::operator==(const QRhiDepthStencilClearValue &a, const QRhiDepthStencilClearValue &b) noexcept
+
+    \return \c true if the values in the two QRhiDepthStencilClearValue objects
+    \a a and \a b are equal.
+ */
+
+/*!
+    \fn bool QRhiDepthStencilClearValue::operator!=(const QRhiDepthStencilClearValue &a, const QRhiDepthStencilClearValue &b) noexcept
+
     \return \c false if the values in the two QRhiDepthStencilClearValue
     objects \a a and \a b are equal; otherwise returns \c true.
 
-    \relates QRhiDepthStencilClearValue
 */
-bool operator!=(const QRhiDepthStencilClearValue &a, const QRhiDepthStencilClearValue &b) noexcept
-{
-    return !(a == b);
-}
 
 /*!
-    \return the hash value for \a v, using \a seed to seed the calculation.
+    \fn size_t QRhiDepthStencilClearValue::qHash(const QRhiDepthStencilClearValue &v, size_t seed = 0) noexcept
 
-    \relates QRhiDepthStencilClearValue
+    \return the hash value for \a v, using \a seed to seed the calculation.
  */
-size_t qHash(const QRhiDepthStencilClearValue &v, size_t seed) noexcept
-{
-    return seed * (uint(qFloor(qreal(v.depthClearValue()) * 100)) + v.stencilClearValue());
-}
 
 #ifndef QT_NO_DEBUG_STREAM
 QDebug operator<<(QDebug dbg, const QRhiDepthStencilClearValue &v)
@@ -924,8 +1169,8 @@ QDebug operator<<(QDebug dbg, const QRhiDepthStencilClearValue &v)
 
 /*!
     \class QRhiViewport
-    \internal
     \inmodule QtGui
+    \since 6.6
     \brief Specifies a viewport rectangle.
 
     Used with QRhiCommandBuffer::setViewport().
@@ -935,20 +1180,23 @@ QDebug operator<<(QDebug dbg, const QRhiDepthStencilClearValue &v)
 
     Typical usage is like the following:
 
-    \badcode
+    \code
       const QSize outputSizeInPixels = swapchain->currentPixelSize();
       const QRhiViewport viewport(0, 0, outputSizeInPixels.width(), outputSizeInPixels.height());
-      cb->beginPass(swapchain->currentFrameRenderTarget(), { 0, 0, 0, 1 }, { 1, 0 });
+      cb->beginPass(swapchain->currentFrameRenderTarget(), Qt::black, { 1.0f, 0 });
       cb->setGraphicsPipeline(ps);
       cb->setViewport(viewport);
-      ...
+      // ...
     \endcode
 
+    \note This is a RHI API with limited compatibility guarantees, see \l QRhi
+    for details.
+
     \sa QRhiCommandBuffer::setViewport(), QRhi::clipSpaceCorrMatrix(), QRhiScissor
  */
 
 /*!
-    \fn QRhiViewport::QRhiViewport()
+    \fn QRhiViewport::QRhiViewport() = default
 
     Constructs a viewport description with an empty rectangle and a depth range
     of 0.0f - 1.0f.
@@ -974,40 +1222,59 @@ QRhiViewport::QRhiViewport(float x, float y, float w, float h, float minDepth, f
 }
 
 /*!
+    \fn std::array<float, 4> QRhiViewport::viewport() const
+    \return the viewport x, y, width, and height.
+ */
+
+/*!
+    \fn void QRhiViewport::setViewport(float x, float y, float w, float h)
+    Sets the viewport's position and size to \a x, \a y, \a w, and \a h.
+
+    \note Viewports are specified in a coordinate system that has its origin in
+    the bottom-left.
+ */
+
+/*!
+    \fn float QRhiViewport::minDepth() const
+    \return the minDepth value of the depth range of the viewport.
+ */
+
+/*!
+    \fn void QRhiViewport::setMinDepth(float minDepth)
+    Sets the \a minDepth of the depth range of the viewport.
+    By default this is set to 0.0f.
+ */
+
+/*!
+    \fn float QRhiViewport::maxDepth() const
+    \return the maxDepth value of the depth range of the viewport.
+ */
+
+/*!
+    \fn void QRhiViewport::setMaxDepth(float maxDepth)
+    Sets the \a maxDepth of the depth range of the viewport.
+    By default this is set to 1.0f.
+ */
+
+/*!
+    \fn bool QRhiViewport::operator==(const QRhiViewport &a, const QRhiViewport &b) noexcept
+
     \return \c true if the values in the two QRhiViewport objects
     \a a and \a b are equal.
-
-    \relates QRhiViewport
  */
-bool operator==(const QRhiViewport &a, const QRhiViewport &b) noexcept
-{
-    return a.viewport() == b.viewport()
-            && a.minDepth() == b.minDepth()
-            && a.maxDepth() == b.maxDepth();
-}
 
 /*!
+    \fn bool QRhiViewport::operator!=(const QRhiViewport &a, const QRhiViewport &b) noexcept
+
     \return \c false if the values in the two QRhiViewport
     objects \a a and \a b are equal; otherwise returns \c true.
-
-    \relates QRhiViewport
 */
-bool operator!=(const QRhiViewport &a, const QRhiViewport &b) noexcept
-{
-    return !(a == b);
-}
 
 /*!
-    \return the hash value for \a v, using \a seed to seed the calculation.
+    \fn size_t QRhiViewport::qHash(const QRhiViewport &v, size_t seed = 0) noexcept
 
-    \relates QRhiViewport
+    \return the hash value for \a v, using \a seed to seed the calculation.
  */
-size_t qHash(const QRhiViewport &v, size_t seed) noexcept
-{
-    const std::array<float, 4> r = v.viewport();
-    return seed + uint(r[0]) + uint(r[1]) + uint(r[2]) + uint(r[3])
-            + uint(qFloor(qreal(v.minDepth()) * 100)) + uint(qFloor(qreal(v.maxDepth()) * 100));
-}
 
 #ifndef QT_NO_DEBUG_STREAM
 QDebug operator<<(QDebug dbg, const QRhiViewport &v)
@@ -1027,8 +1294,8 @@ QDebug operator<<(QDebug dbg, const QRhiViewport &v)
 
 /*!
     \class QRhiScissor
-    \internal
     \inmodule QtGui
+    \since 6.6
     \brief Specifies a scissor rectangle.
 
     Used with QRhiCommandBuffer::setScissor(). Setting a scissor rectangle is
@@ -1042,11 +1309,14 @@ QDebug operator<<(QDebug dbg, const QRhiViewport &v)
     appropriate. Therefore, any rendering logic targeting OpenGL can feed
     scissor rectangles into QRhiScissor as-is, without any adaptation.
 
+    \note This is a RHI API with limited compatibility guarantees, see \l QRhi
+    for details.
+
     \sa QRhiCommandBuffer::setScissor(), QRhiViewport
  */
 
 /*!
-    \fn QRhiScissor::QRhiScissor()
+    \fn QRhiScissor::QRhiScissor() = default
 
     Constructs an empty scissor.
  */
@@ -1067,37 +1337,37 @@ QRhiScissor::QRhiScissor(int x, int y, int w, int h)
 }
 
 /*!
+    \fn std::array<int, 4> QRhiScissor::scissor() const
+    \return the scissor position and size.
+ */
+
+/*!
+    \fn void QRhiScissor::setScissor(int x, int y, int w, int h)
+    Sets the scissor position and size to \a x, \a y, \a w, \a h.
+
+    \note The position is always expected to be specified in a coordinate
+    system that has its origin in the bottom-left corner, like OpenGL.
+ */
+
+/*!
+    \fn bool QRhiScissor::operator==(const QRhiScissor &a, const QRhiScissor &b) noexcept
+
     \return \c true if the values in the two QRhiScissor objects
     \a a and \a b are equal.
-
-    \relates QRhiScissor
  */
-bool operator==(const QRhiScissor &a, const QRhiScissor &b) noexcept
-{
-    return a.scissor() == b.scissor();
-}
 
 /*!
+    \fn bool QRhiScissor::operator!=(const QRhiScissor &a, const QRhiScissor &b) noexcept
+
     \return \c false if the values in the two QRhiScissor
     objects \a a and \a b are equal; otherwise returns \c true.
-
-    \relates QRhiScissor
 */
-bool operator!=(const QRhiScissor &a, const QRhiScissor &b) noexcept
-{
-    return !(a == b);
-}
 
 /*!
-    \return the hash value for \a v, using \a seed to seed the calculation.
+    \fn size_t QRhiScissor::qHash(const QRhiScissor &v, size_t seed = 0) noexcept
 
-    \relates QRhiScissor
+    \return the hash value for \a v, using \a seed to seed the calculation.
  */
-size_t qHash(const QRhiScissor &v, size_t seed) noexcept
-{
-    const std::array<int, 4> r = v.scissor();
-    return seed + uint(r[0]) + uint(r[1]) + uint(r[2]) + uint(r[3]);
-}
 
 #ifndef QT_NO_DEBUG_STREAM
 QDebug operator<<(QDebug dbg, const QRhiScissor &s)
@@ -1115,8 +1385,8 @@ QDebug operator<<(QDebug dbg, const QRhiScissor &s)
 
 /*!
     \class QRhiVertexInputBinding
-    \internal
     \inmodule QtGui
+    \since 6.6
     \brief Describes a vertex input binding.
 
     Specifies the stride (in bytes, must be a multiple of 4), the
@@ -1134,7 +1404,7 @@ QDebug operator<<(QDebug dbg, const QRhiScissor &s)
     format in a buffer (or separate buffers even). Defining two bindings
     could then be done like this:
 
-    \badcode
+    \code
         QRhiVertexInputLayout inputLayout;
         inputLayout.setBindings({
             { 3 * sizeof(float) },
@@ -1151,7 +1421,7 @@ QDebug operator<<(QDebug dbg, const QRhiScissor &s)
     vertices, assuming we have a single buffer with first the positions and
     then the texture coordinates:
 
-    \badcode
+    \code
         const QRhiCommandBuffer::VertexInput vbufBindings[] = {
             { cubeBuf, 0 },
             { cubeBuf, 36 * 3 * sizeof(float) }
@@ -1167,6 +1437,9 @@ QDebug operator<<(QDebug dbg, const QRhiScissor &s)
 
     \note the stride must always be a multiple of 4.
 
+    \note This is a RHI API with limited compatibility guarantees, see \l QRhi
+    for details.
+
     \sa QRhiCommandBuffer::setVertexInput()
  */
 
@@ -1179,7 +1452,7 @@ QDebug operator<<(QDebug dbg, const QRhiScissor &s)
  */
 
 /*!
-    \fn QRhiVertexInputBinding::QRhiVertexInputBinding()
+    \fn QRhiVertexInputBinding::QRhiVertexInputBinding() = default
 
     Constructs a default vertex input binding description.
  */
@@ -1199,38 +1472,54 @@ QRhiVertexInputBinding::QRhiVertexInputBinding(quint32 stride, Classification cl
 }
 
 /*!
+    \fn quint32 QRhiVertexInputBinding::stride() const
+    \return the stride in bytes.
+ */
+
+/*!
+    \fn void QRhiVertexInputBinding::setStride(quint32 s)
+    Sets the stride to \a s.
+ */
+
+/*!
+    \fn QRhiVertexInputBinding::Classification QRhiVertexInputBinding::classification() const
+    \return the input data classification.
+ */
+
+/*!
+    \fn void QRhiVertexInputBinding::setClassification(Classification c)
+    Sets the input data classification \a c. By default this is set to PerVertex.
+ */
+
+/*!
+    \fn quint32 QRhiVertexInputBinding::instanceStepRate() const
+    \return the instance step rate.
+ */
+
+/*!
+    \fn void QRhiVertexInputBinding::setInstanceStepRate(quint32 rate)
+    Sets the instance step \a rate. By default this is set to 1.
+ */
+
+/*!
+    \fn bool QRhiVertexInputBinding::operator==(const QRhiVertexInputBinding &a, const QRhiVertexInputBinding &b) noexcept
+
     \return \c true if the values in the two QRhiVertexInputBinding objects
     \a a and \a b are equal.
-
-    \relates QRhiVertexInputBinding
  */
-bool operator==(const QRhiVertexInputBinding &a, const QRhiVertexInputBinding &b) noexcept
-{
-    return a.stride() == b.stride()
-            && a.classification() == b.classification()
-            && a.instanceStepRate() == b.instanceStepRate();
-}
 
 /*!
+    \fn bool QRhiVertexInputBinding::operator!=(const QRhiVertexInputBinding &a, const QRhiVertexInputBinding &b) noexcept
+
     \return \c false if the values in the two QRhiVertexInputBinding
     objects \a a and \a b are equal; otherwise returns \c true.
-
-    \relates QRhiVertexInputBinding
 */
-bool operator!=(const QRhiVertexInputBinding &a, const QRhiVertexInputBinding &b) noexcept
-{
-    return !(a == b);
-}
 
 /*!
-    \return the hash value for \a v, using \a seed to seed the calculation.
+    \fn size_t QRhiVertexInputBinding::qHash(const QRhiVertexInputBinding &v, size_t seed = 0) noexcept
 
-    \relates QRhiVertexInputBinding
+    \return the hash value for \a v, using \a seed to seed the calculation.
  */
-size_t qHash(const QRhiVertexInputBinding &v, size_t seed) noexcept
-{
-    return seed + v.stride() + v.classification();
-}
 
 #ifndef QT_NO_DEBUG_STREAM
 QDebug operator<<(QDebug dbg, const QRhiVertexInputBinding &b)
@@ -1246,14 +1535,15 @@ QDebug operator<<(QDebug dbg, const QRhiVertexInputBinding &b)
 
 /*!
     \class QRhiVertexInputAttribute
-    \internal
     \inmodule QtGui
+    \since 6.6
     \brief Describes a single vertex input element.
 
     The members specify the binding number, location, format, and offset for a
     single vertex input element.
 
-    \note For HLSL it is assumed that the vertex shader uses
+    \note For HLSL it is assumed that the vertex shader translated from SPIR-V
+    uses
     \c{TEXCOORD<location>} as the semantic for each input. Hence no separate
     semantic name and index.
 
@@ -1269,7 +1559,7 @@ QDebug operator<<(QDebug dbg, const QRhiVertexInputBinding &b)
     non-interleaved format in a buffer (or separate buffers even). Once two
     bindings are defined, the attributes could be specified as:
 
-    \badcode
+    \code
         QRhiVertexInputLayout inputLayout;
         inputLayout.setBindings({
             { 3 * sizeof(float) },
@@ -1286,7 +1576,7 @@ QDebug operator<<(QDebug dbg, const QRhiVertexInputBinding &b)
     vertices, assuming we have a single buffer with first the positions and
     then the texture coordinates:
 
-    \badcode
+    \code
         const QRhiCommandBuffer::VertexInput vbufBindings[] = {
             { cubeBuf, 0 },
             { cubeBuf, 36 * 3 * sizeof(float) }
@@ -1298,7 +1588,7 @@ QDebug operator<<(QDebug dbg, const QRhiVertexInputBinding &b)
     binding, with multiple attributes referring to that same buffer binding
     point:
 
-    \badcode
+    \code
         QRhiVertexInputLayout inputLayout;
         inputLayout.setBindings({
             { 5 * sizeof(float) }
@@ -1311,11 +1601,14 @@ QDebug operator<<(QDebug dbg, const QRhiVertexInputBinding &b)
 
     and then:
 
-    \badcode
+    \code
         const QRhiCommandBuffer::VertexInput vbufBinding(interleavedCubeBuf, 0);
         cb->setVertexInput(0, 1, &vbufBinding);
     \endcode
 
+    \note This is a RHI API with limited compatibility guarantees, see \l QRhi
+    for details.
+
     \sa QRhiCommandBuffer::setVertexInput()
  */
 
@@ -1338,10 +1631,20 @@ QDebug operator<<(QDebug dbg, const QRhiVertexInputBinding &b)
     \value SInt3 Three component signed integer vector
     \value SInt2 Two component signed integer vector
     \value SInt Signed integer
+    \value Half4 Four component half precision (16 bit) float vector
+    \value Half3 Three component half precision (16 bit) float vector
+    \value Half2 Two component half precision (16 bit) float vector
+    \value Half Half precision (16 bit) float
+
+    \note Support for half precision floating point attributes is indicated at
+    run time by the QRhi::Feature::HalfAttributes feature flag. Note that
+    Direct3D 11/12 supports half input attributes, but does not support the
+    Half3 type. The D3D backends pass through Half3 as Half4. To ensure cross
+    platform compatibility, Half3 inputs should be padded to 8 bytes.
  */
 
 /*!
-    \fn QRhiVertexInputAttribute::QRhiVertexInputAttribute()
+    \fn QRhiVertexInputAttribute::QRhiVertexInputAttribute() = default
 
     Constructs a default vertex input attribute description.
  */
@@ -1366,39 +1669,85 @@ QRhiVertexInputAttribute::QRhiVertexInputAttribute(int binding, int location, Fo
 }
 
 /*!
+    \fn int QRhiVertexInputAttribute::binding() const
+    \return the binding point index.
+ */
+
+/*!
+    \fn void QRhiVertexInputAttribute::setBinding(int b)
+    Sets the binding point index to \a b.
+    By default this is set to 0.
+ */
+
+/*!
+    \fn int QRhiVertexInputAttribute::location() const
+    \return the location of the vertex input element.
+ */
+
+/*!
+    \fn void QRhiVertexInputAttribute::setLocation(int loc)
+    Sets the location of the vertex input element to \a loc.
+    By default this is set to 0.
+ */
+
+/*!
+    \fn QRhiVertexInputAttribute::Format QRhiVertexInputAttribute::format() const
+    \return the format of the vertex input element.
+ */
+
+/*!
+    \fn void QRhiVertexInputAttribute::setFormat(Format f)
+    Sets the format of the vertex input element to \a f.
+    By default this is set to Float4.
+ */
+
+/*!
+    \fn quint32 QRhiVertexInputAttribute::offset() const
+    \return the byte offset for the input element.
+ */
+
+/*!
+    \fn void QRhiVertexInputAttribute::setOffset(quint32 ofs)
+    Sets the byte offset for the input element to \a ofs.
+ */
+
+/*!
+    \fn int QRhiVertexInputAttribute::matrixSlice() const
+
+    \return the matrix slice if the input element corresponds to a row or
+    column of a matrix, or -1 if not relevant.
+ */
+
+/*!
+    \fn void QRhiVertexInputAttribute::setMatrixSlice(int slice)
+
+    Sets the matrix \a slice. By default this is set to -1, and should be set
+    to a >= 0 value only when this attribute corresponds to a row or column of
+    a matrix (for example, a 4x4 matrix becomes 4 vec4s, consuming 4
+    consecutive vertex input locations), in which case it is the index of the
+    row or column. \c{location - matrixSlice} must always be equal to the \c
+    location for the first row or column of the unrolled matrix.
+ */
+
+/*!
+    \fn bool QRhiVertexInputAttribute::operator==(const QRhiVertexInputAttribute &a, const QRhiVertexInputAttribute &b) noexcept
+
     \return \c true if the values in the two QRhiVertexInputAttribute objects
     \a a and \a b are equal.
-
-    \relates QRhiVertexInputAttribute
  */
-bool operator==(const QRhiVertexInputAttribute &a, const QRhiVertexInputAttribute &b) noexcept
-{
-    return a.binding() == b.binding()
-            && a.location() == b.location()
-            && a.format() == b.format()
-            && a.offset() == b.offset();
-}
 
 /*!
+    \fn bool QRhiVertexInputAttribute::operator!=(const QRhiVertexInputAttribute &a, const QRhiVertexInputAttribute &b) noexcept
+
     \return \c false if the values in the two QRhiVertexInputAttribute
     objects \a a and \a b are equal; otherwise returns \c true.
-
-    \relates QRhiVertexInputAttribute
 */
-bool operator!=(const QRhiVertexInputAttribute &a, const QRhiVertexInputAttribute &b) noexcept
-{
-    return !(a == b);
-}
 
 /*!
-    \return the hash value for \a v, using \a seed to seed the calculation.
+    \fn size_t QRhiVertexInputAttribute::qHash(const QRhiVertexInputAttribute &v, size_t seed = 0) noexcept
 
-    \relates QRhiVertexInputAttribute
+    \return the hash value for \a v, using \a seed to seed the calculation.
  */
-size_t qHash(const QRhiVertexInputAttribute &v, size_t seed) noexcept
-{
-    return seed + uint(v.binding()) + uint(v.location()) + uint(v.format()) + v.offset();
-}
 
 #ifndef QT_NO_DEBUG_STREAM
 QDebug operator<<(QDebug dbg, const QRhiVertexInputAttribute &a)
@@ -1443,6 +1792,15 @@ QRhiVertexInputAttribute::Format QRhiImplementation::shaderDescVariableFormatToV
     case QShaderDescription::Uint:
         return QRhiVertexInputAttribute::UInt;
 
+    case QShaderDescription::Half4:
+        return QRhiVertexInputAttribute::Half4;
+    case QShaderDescription::Half3:
+        return QRhiVertexInputAttribute::Half3;
+    case QShaderDescription::Half2:
+        return QRhiVertexInputAttribute::Half2;
+    case QShaderDescription::Half:
+        return QRhiVertexInputAttribute::Half;
+
     default:
         Q_UNREACHABLE_RETURN(QRhiVertexInputAttribute::Float);
     }
@@ -1485,6 +1843,15 @@ quint32 QRhiImplementation::byteSizePerVertexForVertexInputFormat(QRhiVertexInpu
     case QRhiVertexInputAttribute::SInt:
         return sizeof(qint32);
 
+    case QRhiVertexInputAttribute::Half4:
+        return 4 * sizeof(qfloat16);
+    case QRhiVertexInputAttribute::Half3:
+        return 4 * sizeof(qfloat16); // half3 still takes 8 bytes
+    case QRhiVertexInputAttribute::Half2:
+        return 2 * sizeof(qfloat16);
+    case QRhiVertexInputAttribute::Half:
+        return sizeof(qfloat16);
+
     default:
         Q_UNREACHABLE_RETURN(1);
     }
@@ -1492,51 +1859,120 @@ quint32 QRhiImplementation::byteSizePerVertexForVertexInputFormat(QRhiVertexInpu
 
 /*!
     \class QRhiVertexInputLayout
-    \internal
     \inmodule QtGui
+    \since 6.6
     \brief Describes the layout of vertex inputs consumed by a vertex shader.
 
     The vertex input layout is defined by the collections of
     QRhiVertexInputBinding and QRhiVertexInputAttribute.
+
+    As an example, let's assume that we have a single buffer with 3 component
+    vertex positions and 2 component UV coordinates interleaved (\c x, \c y, \c
+    z, \c u, \c v), that the position and UV are expected at input locations 0
+    and 1 by the vertex shader, and that the vertex buffer will be bound at
+    binding point 0 using
+    \l{QRhiCommandBuffer::setVertexInput()}{setVertexInput()} later on:
+
+    \code
+        QRhiVertexInputLayout inputLayout;
+        inputLayout.setBindings({
+            { 5 * sizeof(float) }
+        });
+        inputLayout.setAttributes({
+            { 0, 0, QRhiVertexInputAttribute::Float3, 0 },
+            { 0, 1, QRhiVertexInputAttribute::Float2, 3 * sizeof(float) }
+        });
+    \endcode
+
+    \note This is a RHI API with limited compatibility guarantees, see \l QRhi
+    for details.
  */
 
 /*!
-    \fn QRhiVertexInputLayout::QRhiVertexInputLayout()
+    \fn QRhiVertexInputLayout::QRhiVertexInputLayout() = default
 
     Constructs an empty vertex input layout description.
  */
 
 /*!
+    \fn void QRhiVertexInputLayout::setBindings(std::initializer_list<QRhiVertexInputBinding> list)
+    Sets the bindings from the specified \a list.
+ */
+
+/*!
+    \fn template<typename InputIterator> void QRhiVertexInputLayout::setBindings(InputIterator first, InputIterator last)
+    Sets the bindings using the iterators \a first and \a last.
+ */
+
+/*!
+    \fn const QRhiVertexInputBinding *QRhiVertexInputLayout::cbeginBindings() const
+    \return a const iterator pointing to the first item in the binding list.
+ */
+
+/*!
+    \fn const QRhiVertexInputBinding *QRhiVertexInputLayout::cendBindings() const
+    \return a const iterator pointing just after the last item in the binding list.
+ */
+
+/*!
+    \fn const QRhiVertexInputBinding *QRhiVertexInputLayout::bindingAt(qsizetype index) const
+    \return the binding at the given \a index.
+ */
+
+/*!
+    \fn qsizetype QRhiVertexInputLayout::bindingCount() const
+    \return the number of bindings.
+ */
+
+/*!
+    \fn void QRhiVertexInputLayout::setAttributes(std::initializer_list<QRhiVertexInputAttribute> list)
+    Sets the attributes from the specified \a list.
+ */
+
+/*!
+    \fn template<typename InputIterator> void QRhiVertexInputLayout::setAttributes(InputIterator first, InputIterator last)
+    Sets the attributes using the iterators \a first and \a last.
+ */
+
+/*!
+    \fn const QRhiVertexInputAttribute *QRhiVertexInputLayout::cbeginAttributes() const
+    \return a const iterator pointing to the first item in the attribute list.
+ */
+
+/*!
+    \fn const QRhiVertexInputAttribute *QRhiVertexInputLayout::cendAttributes() const
+    \return a const iterator pointing just after the last item in the attribute list.
+ */
+
+/*!
+    \fn const QRhiVertexInputAttribute *QRhiVertexInputLayout::attributeAt(qsizetype index) const
+    \return the attribute at the given \a index.
+ */
+
+/*!
+    \fn qsizetype QRhiVertexInputLayout::attributeCount() const
+    \return the number of attributes.
+ */
+
+/*!
+    \fn bool QRhiVertexInputLayout::operator==(const QRhiVertexInputLayout &a, const QRhiVertexInputLayout &b) noexcept
+
     \return \c true if the values in the two QRhiVertexInputLayout objects
     \a a and \a b are equal.
-
-    \relates QRhiVertexInputLayout
  */
-bool operator==(const QRhiVertexInputLayout &a, const QRhiVertexInputLayout &b) noexcept
-{
-    return a.m_bindings == b.m_bindings && a.m_attributes == b.m_attributes;
-}
 
 /*!
+    \fn bool QRhiVertexInputLayout::operator!=(const QRhiVertexInputLayout &a, const QRhiVertexInputLayout &b) noexcept
+
     \return \c false if the values in the two QRhiVertexInputLayout
     objects \a a and \a b are equal; otherwise returns \c true.
-
-    \relates QRhiVertexInputLayout
 */
-bool operator!=(const QRhiVertexInputLayout &a, const QRhiVertexInputLayout &b) noexcept
-{
-    return !(a == b);
-}
 
 /*!
-    \return the hash value for \a v, using \a seed to seed the calculation.
+    \fn size_t QRhiVertexInputLayout::qHash(const QRhiVertexInputLayout &v, size_t seed = 0) noexcept
 
-    \relates QRhiVertexInputLayout
+    \return the hash value for \a v, using \a seed to seed the calculation.
  */
-size_t qHash(const QRhiVertexInputLayout &v, size_t seed) noexcept
-{
-    return qHash(v.m_bindings, seed) + qHash(v.m_attributes, seed);
-}
 
 #ifndef QT_NO_DEBUG_STREAM
 QDebug operator<<(QDebug dbg, const QRhiVertexInputLayout &v)
@@ -1551,9 +1987,39 @@ QDebug operator<<(QDebug dbg, const QRhiVertexInputLayout &v)
 
 /*!
     \class QRhiShaderStage
-    \internal
     \inmodule QtGui
+    \since 6.6
     \brief Specifies the type and the shader code for a shader stage in the pipeline.
+
+    When setting up a QRhiGraphicsPipeline, a collection of shader stages are
+    specified. The QRhiShaderStage contains a QShader and some associated
+    metadata, such as the graphics pipeline stage, and the
+    \l{QShader::Variant}{shader variant} to select. There is no need to specify
+    the shader language or version because the QRhi backend in use at runtime
+    will take care of choosing the appropriate shader version from the
+    collection within the QShader.
+
+    The typical usage is in combination with
+    QRhiGraphicsPipeline::setShaderStages(), shown here with a simple approach
+    to load the QShader from \c{.qsb} files generated offline or at build time:
+
+    \code
+        QShader getShader(const QString &name)
+        {
+            QFile f(name);
+            return f.open(QIODevice::ReadOnly) ? QShader::fromSerialized(f.readAll()) : QShader();
+        }
+
+        QShader vs = getShader("material.vert.qsb");
+        QShader fs = getShader("material.frag.qsb");
+        pipeline->setShaderStages({
+            { QRhiShaderStage::Vertex, vs },
+            { QRhiShaderStage::Fragment, fs }
+        });
+    \endcode
+
+    \note This is a RHI API with limited compatibility guarantees, see \l QRhi
+    for details.
  */
 
 /*!
@@ -1562,10 +2028,10 @@ QDebug operator<<(QDebug dbg, const QRhiVertexInputLayout &v)
 
     \value Vertex Vertex stage
 
-    \value TessellationControlStage Tessellation control (hull shader) stage.
-    Must be used only when the QRhi::Tessellation feature is supported.
+    \value TessellationControl Tessellation control (hull shader) stage. Must
+    be used only when the QRhi::Tessellation feature is supported.
 
-    \value TessellationEvaluationStage Tessellation evaluation (domain shader)
+    \value TessellationEvaluation Tessellation evaluation (domain shader)
     stage. Must be used only when the QRhi::Tessellation feature is supported.
 
     \value Fragment Fragment (pixel shader) stage
@@ -1578,12 +2044,45 @@ QDebug operator<<(QDebug dbg, const QRhiVertexInputLayout &v)
  */
 
 /*!
-    \fn QRhiShaderStage::QRhiShaderStage()
+    \fn QRhiShaderStage::QRhiShaderStage() = default
 
     Constructs a shader stage description for the vertex stage with an empty
     QShader.
  */
 
+/*!
+    \fn QRhiShaderStage::Type QRhiShaderStage::type() const
+    \return the type of the stage.
+ */
+
+/*!
+    \fn void QRhiShaderStage::setType(Type t)
+
+    Sets the type of the stage to \a t. Setters should rarely be needed in
+    pratice. Most applications will likely use the QRhiShaderStage constructor
+    in most cases.
+ */
+
+/*!
+    \fn QShader QRhiShaderStage::shader() const
+    \return the QShader to be used for this stage in the graphics pipeline.
+ */
+
+/*!
+    \fn void QRhiShaderStage::setShader(const QShader &s)
+    Sets the shader collection \a s.
+ */
+
+/*!
+    \fn QShader::Variant QRhiShaderStage::shaderVariant() const
+    \return the requested shader variant.
+ */
+
+/*!
+    \fn void QRhiShaderStage::setShaderVariant(QShader::Variant v)
+    Sets the requested shader variant \a v.
+ */
+
 /*!
     Constructs a shader stage description with the \a type of the stage and the
     \a shader.
@@ -1601,38 +2100,24 @@ QRhiShaderStage::QRhiShaderStage(Type type, const QShader &shader, QShader::Vari
 }
 
 /*!
+    \fn bool QRhiShaderStage::operator==(const QRhiShaderStage &a, const QRhiShaderStage &b) noexcept
+
     \return \c true if the values in the two QRhiShaderStage objects
     \a a and \a b are equal.
-
-    \relates QRhiShaderStage
  */
-bool operator==(const QRhiShaderStage &a, const QRhiShaderStage &b) noexcept
-{
-    return a.type() == b.type()
-            && a.shader() == b.shader()
-            && a.shaderVariant() == b.shaderVariant();
-}
 
 /*!
+    \fn bool QRhiShaderStage::operator!=(const QRhiShaderStage &a, const QRhiShaderStage &b) noexcept
+
     \return \c false if the values in the two QRhiShaderStage
     objects \a a and \a b are equal; otherwise returns \c true.
-
-    \relates QRhiShaderStage
 */
-bool operator!=(const QRhiShaderStage &a, const QRhiShaderStage &b) noexcept
-{
-    return !(a == b);
-}
 
 /*!
-    \return the hash value for \a v, using \a seed to seed the calculation.
+    \fn size_t QRhiShaderStage::qHash(const QRhiShaderStage &v, size_t seed = 0) noexcept
 
-    \relates QRhiShaderStage
+    \return the hash value for \a v, using \a seed to seed the calculation.
  */
-size_t qHash(const QRhiShaderStage &v, size_t seed) noexcept
-{
-    return v.type() + qHash(v.shader(), seed) + v.shaderVariant();
-}
 
 #ifndef QT_NO_DEBUG_STREAM
 QDebug operator<<(QDebug dbg, const QRhiShaderStage &s)
@@ -1648,12 +2133,14 @@ QDebug operator<<(QDebug dbg, const QRhiShaderStage &s)
 
 /*!
     \class QRhiColorAttachment
-    \internal
     \inmodule QtGui
+    \since 6.6
     \brief Describes the a single color attachment of a render target.
 
     A color attachment is either a QRhiTexture or a QRhiRenderBuffer. The
-    former, when texture() is set, is used in most cases.
+    former, i.e. when texture() is set, is used in most cases.
+    QRhiColorAttachment is commonly used in combination with
+    QRhiTextureRenderTargetDescription.
 
     \note texture() and renderBuffer() cannot be both set (be non-null at the
     same time).
@@ -1680,10 +2167,15 @@ QDebug operator<<(QDebug dbg, const QRhiShaderStage &s)
     \note when resolving is enabled, the multisample data may not be written
     out at all. This means that the multisample texture() must not be used
     afterwards with shaders for sampling when resolveTexture() is set.
+
+    \note This is a RHI API with limited compatibility guarantees, see \l QRhi
+    for details.
+
+    \sa QRhiTextureRenderTargetDescription
  */
 
 /*!
-    \fn QRhiColorAttachment::QRhiColorAttachment()
+    \fn QRhiColorAttachment::QRhiColorAttachment() = default
 
     Constructs an empty color attachment description.
  */
@@ -1706,10 +2198,106 @@ QRhiColorAttachment::QRhiColorAttachment(QRhiRenderBuffer *renderBuffer)
 {
 }
 
+/*!
+    \fn QRhiTexture *QRhiColorAttachment::texture() const
+
+    \return the texture this attachment description references, or \nullptr if
+    there is none.
+ */
+
+/*!
+    \fn void QRhiColorAttachment::setTexture(QRhiTexture *tex)
+
+    Sets the texture \a tex.
+
+    \note texture() and renderBuffer() cannot be both set (be non-null at the
+    same time).
+ */
+
+/*!
+    \fn QRhiRenderBuffer *QRhiColorAttachment::renderBuffer() const
+
+    \return the renderbuffer this attachment description references, or
+    \nullptr if there is none.
+
+    In practice associating a QRhiRenderBuffer with a QRhiColorAttachment makes
+    the most sense when setting up multisample rendering via a multisample
+    \l{QRhiRenderBuffer::Type}{color} renderbuffer that is then resolved into a
+    non-multisample texture at the end of the render pass.
+ */
+
+/*!
+    \fn void QRhiColorAttachment::setRenderBuffer(QRhiRenderBuffer *rb)
+
+    Sets the renderbuffer \a rb.
+
+    \note texture() and renderBuffer() cannot be both set (be non-null at the
+    same time).
+ */
+
+/*!
+    \fn int QRhiColorAttachment::layer() const
+    \return the layer index (cubemap face or array layer). 0 by default.
+ */
+
+/*!
+    \fn void QRhiColorAttachment::setLayer(int layer)
+    Sets the \a layer index.
+ */
+
+/*!
+    \fn int QRhiColorAttachment::level() const
+    \return the mip level. 0 by default.
+ */
+
+/*!
+    \fn void QRhiColorAttachment::setLevel(int level)
+    Sets the mip \a level.
+ */
+
+/*!
+    \fn QRhiTexture *QRhiColorAttachment::resolveTexture() const
+
+    \return the resolve texture this attachment description references, or
+    \nullptr if there is none.
+
+    Setting a non-null resolve texture is applicable when the attachment
+    references a multisample, color renderbuffer. (i.e., renderBuffer() is set)
+    The QRhiTexture in the resolveTexture() is then a regular, 2D,
+    non-multisample texture with the same size (but a sample count of 1). The
+    multisample content is automatically resolved into this texture at the end
+    of each render pass.
+ */
+
+/*!
+    \fn void QRhiColorAttachment::setResolveTexture(QRhiTexture *tex)
+    Sets the resolve texture \a tex.
+ */
+
+/*!
+    \fn int QRhiColorAttachment::resolveLayer() const
+    \return the currently set resolve texture layer. Defaults to 0.
+ */
+
+/*!
+    \fn void QRhiColorAttachment::setResolveLayer(int layer)
+    Sets the resolve texture \a layer to use.
+ */
+
+/*!
+    \fn int QRhiColorAttachment::resolveLevel() const
+    \return the currently set resolve texture mip level. Defaults to 0.
+ */
+
+/*!
+    \fn void QRhiColorAttachment::setResolveLevel(int level)
+    Sets the resolve texture mip \a level to use.
+ */
+
 /*!
     \class QRhiTextureRenderTargetDescription
-    \internal
     \inmodule QtGui
+    \since 6.6
     \brief Describes the color and depth or depth/stencil attachments of a render target.
 
     A texture render target has zero or more textures as color attachments,
@@ -1718,10 +2306,78 @@ QRhiColorAttachment::QRhiColorAttachment(QRhiRenderBuffer *renderBuffer)
 
     \note depthStencilBuffer() and depthTexture() cannot be both set (cannot be
     non-null at the same time).
+
+    Let's look at some example usages in combination with
+    QRhiTextureRenderTarget.
+
+    Due to the constructors, the targeting a texture (and no depth/stencil
+    buffer) is simple:
+
+    \code
+        QRhiTexture *texture = rhi->newTexture(QRhiTexture::RGBA8, QSize(256, 256), 1, QRhiTexture::RenderTarget);
+        texture->create();
+        QRhiTextureRenderTarget *rt = rhi->newTextureRenderTarget({ texture }));
+    \endcode
+
+    The following creates a texture render target that is set up to target mip
+    level #2 of a texture:
+
+    \code
+        QRhiTexture *texture = rhi->newTexture(QRhiTexture::RGBA8, QSize(512, 512), 1, QRhiTexture::RenderTarget | QRhiTexture::MipMapped);
+        texture->create();
+        QRhiColorAttachment colorAtt(texture);
+        colorAtt.setLevel(2);
+        QRhiTextureRenderTarget *rt = rhi->newTextureRenderTarget({ colorAtt });
+    \endcode
+
+    Another example, this time to render into a depth texture:
+
+    \code
+        QRhiTexture *shadowMap = rhi->newTexture(QRhiTexture::D32F, QSize(1024, 1024), 1, QRhiTexture::RenderTarget);
+        shadowMap->create();
+        QRhiTextureRenderTargetDescription rtDesc;
+        rtDesc.setDepthTexture(shadowMap);
+        QRhiTextureRenderTarget *rt = rhi->newTextureRenderTarget(rtDesc);
+    \endcode
+
+    A very common case, having a texture as the color attachment and a
+    renderbuffer as depth/stencil to enable depth testing:
+
+    \code
+        QRhiTexture *texture = rhi->newTexture(QRhiTexture::RGBA8, QSize(512, 512), 1. QRhiTexture::RenderTarget);
+        texture->create();
+        QRhiRenderBuffer *depthStencil = rhi->newRenderBuffer(QRhiRenderBuffer::DepthStencil, QSize(512, 512));
+        depthStencil->create();
+        QRhiTextureRenderTargetDescription rtDesc({ texture }, depthStencil);
+        QRhiTextureRenderTarget *rt = rhi->newTextureRenderTarget(rtDesc);
+    \endcode
+
+    Finally, to enable multisample rendering in a portable manner (so also
+    supporting OpenGL ES 3.0), using a QRhiRenderBuffer as the (multisample)
+    color buffer and then resolving into a regular (non-multisample) 2D
+    texture. To enable depth testing, a depth-stencil buffer, which also must
+    use the same sample count, is used as well:
+
+    \code
+        QRhiRenderBuffer *colorBuffer = rhi->newRenderBuffer(QRhiRenderBuffer::Color, QSize(512, 512), 4); // 4x MSAA
+        colorBuffer->create();
+        QRhiRenderBuffer *depthStencil = rhi->newRenderBuffer(QRhiRenderBuffer::DepthStencil, QSize(512, 512), 4);
+        depthStencil->create();
+        QRhiTexture *texture = rhi->newTexture(QRhiTexture::RGBA8, QSize(512, 512), 1, QRhiTexture::RenderTarget);
+        texture->create();
+        QRhiColorAttachment colorAtt(colorBuffer);
+        colorAtt.setResolveTexture(texture);
+        QRhiTextureRenderTarget *rt = rhi->newTextureRenderTarget({ colorAtt, depthStencil });
+    \endcode
+
+    \note This is a RHI API with limited compatibility guarantees, see \l QRhi
+    for details.
+
+    \sa QRhiColorAttachment, QRhiTextureRenderTarget
  */
 
 /*!
-    \fn QRhiTextureRenderTargetDescription::QRhiTextureRenderTargetDescription()
+    \fn QRhiTextureRenderTargetDescription::QRhiTextureRenderTargetDescription() = default
 
     Constructs an empty texture render target description.
  */
@@ -1762,10 +2418,73 @@ QRhiTextureRenderTargetDescription::QRhiTextureRenderTargetDescription(const QRh
     m_colorAttachments.append(colorAttachment);
 }
 
+/*!
+    \fn void QRhiTextureRenderTargetDescription::setColorAttachments(std::initializer_list<QRhiColorAttachment> list)
+    Sets the \a list of color attachments.
+ */
+
+/*!
+    \fn template<typename InputIterator> void QRhiTextureRenderTargetDescription::setColorAttachments(InputIterator first, InputIterator last)
+    Sets the list of color attachments via the iterators \a first and \a last.
+ */
+
+/*!
+    \fn const QRhiColorAttachment *QRhiTextureRenderTargetDescription::cbeginColorAttachments() const
+    \return a const iterator pointing to the first item in the attachment list.
+ */
+
+/*!
+    \fn const QRhiColorAttachment *QRhiTextureRenderTargetDescription::cendColorAttachments() const
+    \return a const iterator pointing just after the last item in the attachment list.
+ */
+
+/*!
+    \fn const QRhiColorAttachment *QRhiTextureRenderTargetDescription::colorAttachmentAt(qsizetype index) const
+    \return the color attachment at the specified \a index.
+ */
+
+/*!
+    \fn qsizetype QRhiTextureRenderTargetDescription::colorAttachmentCount() const
+    \return the number of currently set color attachments.
+ */
+
+/*!
+    \fn QRhiRenderBuffer *QRhiTextureRenderTargetDescription::depthStencilBuffer() const
+    \return the renderbuffer used as depth-stencil buffer, or \nullptr if none was set.
+ */
+
+/*!
+    \fn void QRhiTextureRenderTargetDescription::setDepthStencilBuffer(QRhiRenderBuffer *renderBuffer)
+
+    Sets the \a renderBuffer for depth-stencil. Not mandatory, e.g. when no
+    depth test/write or stencil-related features are used within any graphics
+    pipelines in any of the render passes for this render target, it can be
+    left set to \nullptr.
+
+    \note depthStencilBuffer() and depthTexture() cannot be both set (cannot be
+    non-null at the same time).
+ */
+
+/*!
+    \fn QRhiTexture *QRhiTextureRenderTargetDescription::depthTexture() const
+    \return the currently referenced depth texture, or \nullptr if none was set.
+ */
+
+/*!
+    \fn void QRhiTextureRenderTargetDescription::setDepthTexture(QRhiTexture *texture)
+
+    Sets the \a texture for depth-stencil. This is an alternative to
+    setDepthStencilBuffer(), where instead of a QRhiRenderBuffer a QRhiTexture
+    with a suitable type (e.g., QRhiTexture::D32F) is provided.
+
+    \note depthStencilBuffer() and depthTexture() cannot be both set (cannot be
+    non-null at the same time).
+ */
+
 /*!
     \class QRhiTextureSubresourceUploadDescription
-    \internal
     \inmodule QtGui
+    \since 6.6
     \brief Describes the source for one mip level in a layer in a texture upload operation.
 
     The source content is specified either as a QImage or as a raw blob. The
@@ -1822,10 +2541,15 @@ QRhiTextureRenderTargetDescription::QRhiTextureRenderTargetDescription(const QRh
     in order to be portable across all backends) If this cannot be ensured, the
     caller is strongly encouraged to call QImage::detach() on the image before
     passing it to uploadTexture().
+
+    \note This is a RHI API with limited compatibility guarantees, see \l QRhi
+    for details.
+
+    \sa QRhiTextureUploadDescription
  */
 
 /*!
-    \fn QRhiTextureSubresourceUploadDescription::QRhiTextureSubresourceUploadDescription()
+    \fn QRhiTextureSubresourceUploadDescription::QRhiTextureSubresourceUploadDescription() = default
 
     Constructs an empty subresource description.
 
@@ -1872,13 +2596,109 @@ QRhiTextureSubresourceUploadDescription::QRhiTextureSubresourceUploadDescription
 {
 }
 
+/*!
+    \fn QImage QRhiTextureSubresourceUploadDescription::image() const
+    \return the currently set QImage.
+ */
+
+/*!
+    \fn void QRhiTextureSubresourceUploadDescription::setImage(const QImage &image)
+
+    Sets \a image.
+
+    \note image() and data() cannot be both set at the same time.
+ */
+
+/*!
+    \fn QByteArray QRhiTextureSubresourceUploadDescription::data() const
+    \return the currently set raw pixel data.
+ */
+
+/*!
+    \fn void QRhiTextureSubresourceUploadDescription::setData(const QByteArray &data)
+
+    Sets \a data.
+
+    \note image() and data() cannot be both set at the same time.
+ */
+
+/*!
+    \fn quint32 QRhiTextureSubresourceUploadDescription::dataStride() const
+    \return the currently set data stride.
+ */
+
+/*!
+    \fn void QRhiTextureSubresourceUploadDescription::setDataStride(quint32 stride)
+
+    Sets the data \a stride in bytes. By default this is 0 and not always
+    relevant. When providing raw data(), and the stride is not specified via
+    setDataStride(), the stride (row pitch, row length in bytes) of the
+    provided data must be equal to \c{width * pixelSize} where \c pixelSize is
+    the number of bytes used for one pixel, and there must be no additional
+    padding between rows. Otherwise, if there is additional space between the
+    lines, set a non-zero \a stride. All this is applicable only when raw image
+    data is provided, and is not necessary when working QImage since that has
+    its own \l{QImage::bytesPerLine()}{stride} value.
+
+    \note Setting the stride via setDataStride() is only functional when
+    QRhi::ImageDataStride is reported as
+    \l{QRhi::isFeatureSupported()}{supported}.
+
+    \note When a QImage is given, the stride returned from
+    QImage::bytesPerLine() is taken into account automatically and therefore
+    there is no need to set the data stride manually.
+ */
+
+/*!
+    \fn QPoint QRhiTextureSubresourceUploadDescription::destinationTopLeft() const
+    \return the currently set destination top-left position. Defaults to (0, 0).
+ */
+
+/*!
+    \fn void QRhiTextureSubresourceUploadDescription::setDestinationTopLeft(const QPoint &p)
+    Sets the destination top-left position \a p.
+ */
+
+/*!
+    \fn QSize QRhiTextureSubresourceUploadDescription::sourceSize() const
+
+    \return the source size in pixels. Defaults to a default-constructed QSize,
+    which indicates the entire subresource.
+ */
+
+/*!
+    \fn void QRhiTextureSubresourceUploadDescription::setSourceSize(const QSize &size)
+
+    Sets the source \a size in pixels.
+
+    \note Setting sourceSize() or sourceTopLeft() may trigger a QImage copy
+    internally, depending on the format and the backend.
+ */
+
+/*!
+    \fn QPoint QRhiTextureSubresourceUploadDescription::sourceTopLeft() const
+    \return the currently set source top-left position. Defaults to (0, 0).
+ */
+
+/*!
+    \fn void QRhiTextureSubresourceUploadDescription::setSourceTopLeft(const QPoint &p)
+
+    Sets the source top-left position \a p.
+
+    \note Setting sourceSize() or sourceTopLeft() may trigger a QImage copy
+    internally, depending on the format and the backend.
+ */
+
 /*!
     \class QRhiTextureUploadEntry
-    \internal
     \inmodule QtGui
+    \since 6.6
 
     \brief Describes one layer (face for cubemaps, slice for 3D textures,
     element for texture arrays) in a texture upload operation.
+
+    \note This is a RHI API with limited compatibility guarantees, see \l QRhi
+    for details.
  */
 
 /*!
@@ -1903,19 +2723,62 @@ QRhiTextureUploadEntry::QRhiTextureUploadEntry(int layer, int level,
 {
 }
 
+/*!
+    \fn int QRhiTextureUploadEntry::layer() const
+    \return the currently set layer index (cubemap face, array layer). Defaults to 0.
+ */
+
+/*!
+    \fn void QRhiTextureUploadEntry::setLayer(int layer)
+    Sets the \a layer.
+ */
+
+/*!
+    \fn int QRhiTextureUploadEntry::level() const
+    \return the currently set mip level. Defaults to 0.
+ */
+
+/*!
+    \fn void QRhiTextureUploadEntry::setLevel(int level)
+    Sets the mip \a level.
+ */
+
+/*!
+    \fn QRhiTextureSubresourceUploadDescription QRhiTextureUploadEntry::description() const
+    \return the currently set subresource description.
+ */
+
+/*!
+    \fn void QRhiTextureUploadEntry::setDescription(const QRhiTextureSubresourceUploadDescription &desc)
+    Sets the subresource description \a desc.
+ */
+
 /*!
     \class QRhiTextureUploadDescription
-    \internal
     \inmodule QtGui
+    \since 6.6
     \brief Describes a texture upload operation.
 
     Used with QRhiResourceUpdateBatch::uploadTexture(). That function has two
     variants: one taking a QImage and one taking a
     QRhiTextureUploadDescription. The former is a convenience version,
     internally creating a QRhiTextureUploadDescription with a single image
-    targeting level 0 for layer 0. However, when cubemaps, pre-generated mip
-    images, or compressed textures are involved, applications will have to work
-    directly with this class instead.
+    targeting level 0 for layer 0.
+
+    An example of the the common, simple case of wanting to upload the contents
+    of a QImage to a QRhiTexture with a matching pixel size:
+
+    \code
+        QImage image(256, 256, QImage::Format_RGBA8888);
+        image.fill(Qt::green); // or could use a QPainter targeting image
+        QRhiTexture *texture = rhi->newTexture(QRhiTexture::RGBA8, QSize(256, 256));
+        texture->create();
+        QRhiResourceUpdateBatch *u = rhi->nextResourceUpdateBatch();
+        u->uploadTexture(texture, image);
+    \endcode
+
+    When cubemaps, pre-generated mip images, compressed textures, or partial
+    uploads are involved, applications will have to use this class instead.
 
     QRhiTextureUploadDescription also enables specifying batched uploads, which
     are useful for example when generating an atlas or glyph cache texture:
@@ -1931,10 +2794,10 @@ QRhiTextureUploadEntry::QRhiTextureUploadEntry(int layer, int level,
 
     For example, specifying the faces of a cubemap could look like the following:
 
-    \badcode
+    \code
         QImage faces[6];
-        ...
-        QList<QRhiTextureUploadEntry> entries;
+        // ...
+        QVarLengthArray<QRhiTextureUploadEntry, 6> entries;
         for (int i = 0; i < 6; ++i)
           entries.append(QRhiTextureUploadEntry(i, 0, faces[i]));
         QRhiTextureUploadDescription desc;
@@ -1944,7 +2807,7 @@ QRhiTextureUploadEntry::QRhiTextureUploadEntry(int layer, int level,
 
     Another example that specifies mip images for a compressed texture:
 
-    \badcode
+    \code
         QList<QRhiTextureUploadEntry> entries;
         const int mipCount = rhi->mipLevelsForSize(compressedTexture->pixelSize());
         for (int level = 0; level < mipCount; ++level) {
@@ -1959,7 +2822,7 @@ QRhiTextureUploadEntry::QRhiTextureUploadEntry(int layer, int level,
     With partial uploads targeting the same subresource, it is recommended to
     batch them into a single upload request, whenever possible:
 
-    \badcode
+    \code
       QRhiTextureSubresourceUploadDescription subresDesc(image);
       subresDesc.setSourceSize(QSize(10, 10));
       subResDesc.setDestinationTopLeft(QPoint(50, 40));
@@ -1973,6 +2836,11 @@ QRhiTextureUploadEntry::QRhiTextureUploadEntry(int layer, int level,
       QRhiTextureUploadDescription desc({ entry, entry2});
       resourceUpdates->uploadTexture(texture, desc);
     \endcode
+
+    \note This is a RHI API with limited compatibility guarantees, see \l QRhi
+    for details.
+
+    \sa QRhiResourceUpdateBatch
  */
 
 /*!
@@ -2004,10 +2872,40 @@ QRhiTextureUploadDescription::QRhiTextureUploadDescription(std::initializer_list
 {
 }
 
+/*!
+    \fn void QRhiTextureUploadDescription::setEntries(std::initializer_list<QRhiTextureUploadEntry> list)
+    Sets the \a list of entries.
+ */
+
+/*!
+    \fn template<typename InputIterator> void QRhiTextureUploadDescription::setEntries(InputIterator first, InputIterator last)
+    Sets the list of entries using the iterators \a first and \a last.
+ */
+
+/*!
+    \fn const QRhiTextureUploadEntry *QRhiTextureUploadDescription::cbeginEntries() const
+    \return a const iterator pointing to the first item in the entry list.
+ */
+
+/*!
+    \fn const QRhiTextureUploadEntry *QRhiTextureUploadDescription::cendEntries() const
+    \return a const iterator pointing just after the last item in the entry list.
+ */
+
+/*!
+    \fn const QRhiTextureUploadEntry *QRhiTextureUploadDescription::entryAt(qsizetype index) const
+    \return the entry at \a index.
+ */
+
+/*!
+    \fn qsizetype QRhiTextureUploadDescription::entryCount() const
+    \return the number of entries.
+ */
+
 /*!
     \class QRhiTextureCopyDescription
-    \internal
     \inmodule QtGui
+    \since 6.6
     \brief Describes a texture-to-texture copy operation.
 
     An empty pixelSize() indicates that the entire subresource is to be copied.
@@ -2027,6 +2925,9 @@ QRhiTextureUploadDescription::QRhiTextureUploadDescription(std::initializer_list
     copied at a time. The source and destination layer and mip level indices can
     differ, but the size and position must be carefully controlled to avoid out
     of bounds copies, in which case the behavior is undefined.
+
+    \note This is a RHI API with limited compatibility guarantees, see \l QRhi
+    for details.
  */
 
 /*!
@@ -2035,10 +2936,84 @@ QRhiTextureUploadDescription::QRhiTextureUploadDescription(std::initializer_list
     Constructs an empty texture copy description.
  */
 
+/*!
+    \fn QSize QRhiTextureCopyDescription::pixelSize() const
+    \return the size of the region to copy.
+
+    \note An empty pixelSize() indicates that the entire subresource is to be
+    copied. A default constructed copy description therefore leads to copying
+    the entire subresource at level 0 of layer 0.
+ */
+
+/*!
+    \fn void QRhiTextureCopyDescription::setPixelSize(const QSize &sz)
+    Sets the size of the region to copy to \a sz.
+ */
+
+/*!
+    \fn int QRhiTextureCopyDescription::sourceLayer() const
+    \return the source array layer (cubemap face or array layer index). Defaults to 0.
+ */
+
+/*!
+    \fn void QRhiTextureCopyDescription::setSourceLayer(int layer)
+    Sets the source array \a layer.
+ */
+
+/*!
+    \fn int QRhiTextureCopyDescription::sourceLevel() const
+    \return the source mip level. Defaults to 0.
+ */
+
+/*!
+    \fn void QRhiTextureCopyDescription::setSourceLevel(int level)
+    Sets the source mip \a level.
+ */
+
+/*!
+    \fn QPoint QRhiTextureCopyDescription::sourceTopLeft() const
+    \return the source top-left position (in pixels). Defaults to (0, 0).
+ */
+
+/*!
+    \fn void QRhiTextureCopyDescription::setSourceTopLeft(const QPoint &p)
+    Sets the source top-left position to \a p.
+ */
+
+/*!
+    \fn int QRhiTextureCopyDescription::destinationLayer() const
+    \return the destination array layer (cubemap face or array layer index). Default to 0.
+ */
+
+/*!
+    \fn void QRhiTextureCopyDescription::setDestinationLayer(int layer)
+    Sets the destination array \a layer.
+ */
+
+/*!
+    \fn int QRhiTextureCopyDescription::destinationLevel() const
+    \return the destionation mip level. Defaults to 0.
+ */
+
+/*!
+    \fn void QRhiTextureCopyDescription::setDestinationLevel(int level)
+    Sets the destination mip \a level.
+ */
+
+/*!
+    \fn QPoint QRhiTextureCopyDescription::destinationTopLeft() const
+    \return the destionation top-left position in pixels. Defaults to (0, 0).
+ */
+
+/*!
+    \fn void QRhiTextureCopyDescription::setDestinationTopLeft(const QPoint &p)
+    Sets the destination top-left position \a p.
+ */
+
 /*!
     \class QRhiReadbackDescription
-    \internal
     \inmodule QtGui
+    \since 6.6
     \brief Describes a readback (reading back texture contents from possibly GPU-only memory) operation.
 
     The source of the readback operation is either a QRhiTexture or the
@@ -2056,10 +3031,13 @@ QRhiTextureUploadDescription::QRhiTextureUploadDescription(std::initializer_list
 
     \note Multisample textures cannot be read back. Readbacks are supported for
     multisample swapchain buffers however.
+
+    \note This is a RHI API with limited compatibility guarantees, see \l QRhi
+    for details.
  */
 
 /*!
-    \fn QRhiReadbackDescription::QRhiReadbackDescription()
+    \fn QRhiReadbackDescription::QRhiReadbackDescription() = default
 
     Constructs an empty texture readback description.
 
@@ -2082,33 +3060,141 @@ QRhiReadbackDescription::QRhiReadbackDescription(QRhiTexture *texture)
 {
 }
 
+/*!
+    \fn QRhiTexture *QRhiReadbackDescription::texture() const
+
+    \return the QRhiTexture that is read back. Can be left set to \nullptr
+    which indicates that the backbuffer of the current swapchain is to be used
+    instead.
+ */
+
+/*!
+    \fn void QRhiReadbackDescription::setTexture(QRhiTexture *tex)
+
+    Sets the texture \a tex as the source of the readback operation.
+
+    Setting \nullptr is valid too, in which case the current swapchain's
+    current backbuffer is used. (but then the readback cannot be issued in a
+    non-swapchain-based frame)
+
+    \note Multisample textures cannot be read back. Readbacks are supported for
+    multisample swapchain buffers however.
+
+    \note Textures used in readbacks must be created with
+    QRhiTexture::UsedAsTransferSource.
+
+    \note Swapchains used in readbacks must be created with
+    QRhiSwapChain::UsedAsTransferSource.
+ */
+
+/*!
+    \fn int QRhiReadbackDescription::layer() const
+
+    \return the currently set array layer (cubemap face, array index). Defaults to 0.
+
+    Applicable only when the source of the readback is a QRhiTexture.
+ */
+
+/*!
+    \fn void QRhiReadbackDescription::setLayer(int layer)
+    Sets the array \a layer to read back.
+ */
+
+/*!
+    \fn int QRhiReadbackDescription::level() const
+
+    \return the currently set mip level. Defaults to 0.
+
+    Applicable only when the source of the readback is a QRhiTexture.
+ */
+
+/*!
+    \fn void QRhiReadbackDescription::setLevel(int level)
+    Sets the mip \a level to read back.
+ */
+
 /*!
     \class QRhiReadbackResult
-    \internal
     \inmodule QtGui
-    \brief Describes the results of a potentially asynchronous readback operation.
+    \since 6.6
+    \brief Describes the results of a potentially asynchronous buffer or texture readback operation.
 
     When \l completed is set, the function is invoked when the \l data is
     available. \l format and \l pixelSize are set upon completion together with
     \l data.
+
+    \note This is a RHI API with limited compatibility guarantees, see \l QRhi
+    for details.
  */
 
+/*!
+    \variable QRhiReadbackResult::completed
+
+    Callback that is invoked upon completion, on the thread the QRhi operates
+    on. Can be left set to \nullptr, in which case no callback is invoked.
+ */
+
+/*!
+    \variable QRhiReadbackResult::format
+
+    Valid only for textures, the texture format.
+ */
+
+/*!
+    \variable QRhiReadbackResult::pixelSize
+
+    Valid only for textures, the size in pixels.
+ */
+
+/*!
+    \variable QRhiReadbackResult::data
+
+    The buffer or image data.
+
+    \sa QRhiResourceUpdateBatch::readBackTexture(), QRhiResourceUpdateBatch::readBackBuffer()
+ */
+
+
 /*!
     \class QRhiNativeHandles
-    \internal
     \inmodule QtGui
+    \since 6.6
     \brief Base class for classes exposing backend-specific collections of native resource objects.
+
+    \note This is a RHI API with limited compatibility guarantees, see \l QRhi
+    for details.
  */
 
 /*!
     \class QRhiResource
-    \internal
     \inmodule QtGui
+    \since 6.6
     \brief Base class for classes encapsulating native resource objects.
+
+    \note This is a RHI API with limited compatibility guarantees, see \l QRhi
+    for details.
  */
 
 /*!
-    \fn QRhiResource::Type QRhiResource::resourceType() const
+    \enum QRhiResource::Type
+    Specifies type of the resource.
+
+    \value Buffer
+    \value Texture
+    \value Sampler
+    \value RenderBuffer
+    \value RenderPassDescriptor
+    \value SwapChainRenderTarget
+    \value TextureRenderTarget
+    \value ShaderResourceBindings
+    \value GraphicsPipeline
+    \value SwapChain
+    \value ComputePipeline
+    \value CommandBuffer
+ */
+
+/*!
+    \fn virtual QRhiResource::Type QRhiResource::resourceType() const = 0
 
     \return the type of the resource.
  */
@@ -2140,7 +3226,7 @@ QRhiResource::~QRhiResource()
 }
 
 /*!
-    \fn void QRhiResource::destroy()
+    \fn virtual void QRhiResource::destroy() = 0
 
     Releases (or requests deferred releasing of) the underlying native graphics
     resources. Safe to call multiple times, subsequent invocations will be a
@@ -2154,7 +3240,7 @@ QRhiResource::~QRhiResource()
     released until the frame is submitted by QRhi::endFrame().
 
     The QRhiResource destructor also performs the same task, so calling this
-    function is not necessary before destroying a QRhiResource.
+    function is not necessary before deleting a QRhiResource.
 
     \sa deleteLater()
  */
@@ -2170,6 +3256,31 @@ QRhiResource::~QRhiResource()
     If the QRhi that created this object is already destroyed, the object is
     deleted immediately.
 
+    Using deleteLater() can be a useful convenience in many cases, and it
+    complements the low-level guarantee (that the underlying native graphics
+    objects are never destroyed until it is safe to do so and it is known for
+    sure that they are not used by the GPU in an still in-flight frame), by
+    offering a way to make sure the C++ object instances (of QRhiBuffer,
+    QRhiTexture, etc.) themselves also stay valid until the end of the current
+    frame.
+
+    The following example shows a convenient way of creating a throwaway buffer
+    that is only used in one frame and gets automatically released in
+    endFrame(). (when it comes to the underlying native buffer(s), the usual
+    guarantee applies: the QRhi backend defers the releasing of those until it
+    is guaranteed that the frame in which the buffer is accessed by the GPU has
+    completed)
+
+    \code
+        rhi->beginFrame(swapchain);
+        QRhiBuffer *buf = rhi->newBuffer(QRhiBuffer::Immutable, QRhiBuffer::VertexBuffer, 256);
+        buf->deleteLater(); // !
+        u = rhi->nextResourceUpdateBatch();
+        u->uploadStaticBuffer(buf, data);
+        // ... draw with buf
+        rhi->endFrame();
+    \endcode
+
     \sa destroy()
  */
 void QRhiResource::deleteLater()
@@ -2191,7 +3302,7 @@ QByteArray QRhiResource::name() const
 /*!
     Sets a \a name for the object.
 
-    This has two uses: to get descriptive names for the native graphics
+    This allows getting descriptive names for the native graphics
     resources visible in graphics debugging tools, such as
     \l{https://renderdoc.org/}{RenderDoc} and
     \l{https://developer.apple.com/xcode/}{XCode}.
@@ -2237,9 +3348,129 @@ QRhi *QRhiResource::rhi() const
 
 /*!
     \class QRhiBuffer
-    \internal
     \inmodule QtGui
+    \since 6.6
     \brief Vertex, index, or uniform (constant) buffer resource.
+
+    \note This is a RHI API with limited compatibility guarantees, see \l QRhi
+    for details.
+
+    A QRhiBuffer encapsulates zero, one, or more native buffer objects (such as
+    a \c VkBuffer or \c MTLBuffer). With some graphics APIs and backends
+    certain types of buffers may not use a native buffer object at all (e.g.
+    OpenGL if uniform buffer objects are not used), but this is transparent to
+    the user of the QRhiBuffer API. Similarly, the fact that some types of
+    buffers may use two or three native buffers underneath, in order to allow
+    efficient per-frame content update without stalling the GPU pipeline, is
+    mostly invisible to the applications and libraries.
+
+    A QRhiBuffer instance is always created by calling
+    \l{QRhi::newBuffer()}{the QRhi's newBuffer() function}. This creates no
+    native graphics resources. To do that, call create() after setting the
+    appropriate options, such as the type, usage flags, size, although in most cases these
+    are already set based on the arguments passed to
+    \l{QRhi::newBuffer()}{newBuffer()}.
+
+    \section2 Example usage
+
+    To create a uniform buffer for a shader where the GLSL uniform block
+    contains a single \c mat4 member, and update the contents:
+
+    \code
+        QRhiBuffer *ubuf = rhi->newBuffer(QRhiBuffer::Dynamic, QRhiBuffer::UniformBuffer, 64);
+        if (!ubuf->create()) { error(); }
+        QRhiResourceUpdateBatch *batch = rhi->nextResourceUpdateBatch();
+        QMatrix4x4 mvp;
+        // ... set up the modelview-projection matrix
+        batch->updateDynamicBuffer(ubuf, 0, 64, mvp.constData());
+        // ...
+        commandBuffer->resourceUpdate(batch); // or, alternatively, pass 'batch' to a beginPass() call
+    \endcode
+
+    An example of creating a buffer with vertex data:
+
+    \code
+        const float vertices[] = { -1.0f, -1.0f, 1.0f, -1.0f, 0.0f, 1.0f };
+        QRhiBuffer *vbuf = rhi->newBuffer(QRhiBuffer::Immutable, QRhiBuffer::VertexBuffer, sizeof(vertices));
+        if (!vbuf->create()) { error(); }
+        QRhiResourceUpdateBatch *batch = rhi->nextResourceUpdateBatch();
+        batch->uploadStaticBuffer(vbuf, vertices);
+        // ...
+        commandBuffer->resourceUpdate(batch); // or, alternatively, pass 'batch' to a beginPass() call
+    \endcode
+
+    An index buffer:
+
+    \code
+        static const quint16 indices[] = { 0, 1, 2 };
+        QRhiBuffer *ibuf = rhi->newBuffer(QRhiBuffer::Immutable, QRhiBuffer::IndexBuffer, sizeof(indices));
+        if (!ibuf->create()) { error(); }
+        QRhiResourceUpdateBatch *batch = rhi->nextResourceUpdateBatch();
+        batch->uploadStaticBuffer(ibuf, indices);
+        // ...
+        commandBuffer->resourceUpdate(batch); // or, alternatively, pass 'batch' to a beginPass() call
+    \endcode
+
+    \section2 Common patterns
+
+    A call to create() destroys any existing native resources if create() was
+    successfully called before. If those native resources are still in use by
+    an in-flight frame (i.e., there's a chance they are still read by the GPU),
+    the destroying of those resources is deferred automatically. Thus a very
+    common and convenient pattern to safely increase the size of an already
+    initialized buffer is the following. In practice this drops and creates a
+    whole new set of native resources underneath, so it is not necessarily a
+    cheap operation, but is more convenient and still faster than the
+    alternatives, because by not destroying the \c buf object itself, all
+    references to it stay valid in other data structures (e.g., in any
+    QRhiShaderResourceBinding the QRhiBuffer is referenced from).
+
+    \code
+        if (buf->size() < newSize) {
+            buf->setSize(newSize);
+            if (!buf->create()) { error(); }
+        }
+        // continue using buf, fill it with new data
+    \endcode
+
+    When working with uniform buffers, it will sometimes be necessary to
+    combine data for multiple draw calls into a single buffer for efficiency
+    reasons. Be aware of the aligment requirements: with some graphics APIs
+    offsets for a uniform buffer must be aligned to 256 bytes. This applies
+    both to QRhiShaderResourceBinding and to the dynamic offsets passed to
+    \l{QRhiCommandBuffer::setShaderResources()}{setShaderResources()}. Use the
+    \l{QRhi::ubufAlignment()}{ubufAlignment()} and
+    \l{QRhi::ubufAligned()}{ubufAligned()} functions to create portable code.
+    As an example, the following is an outline for issuing multiple (\c N) draw
+    calls with the same pipeline and geometry, but with a different data in the
+    uniform buffers exposed at binding point 0. This assumes the buffer is
+    exposed via
+    \l{QRhiShaderResourceBinding::uniformBufferWithDynamicOffset()}{uniformBufferWithDynamicOffset()}
+    which allows passing a QRhiCommandBuffer::DynamicOffset list to
+    \l{QRhiCommandBuffer::setShaderResources()}{setShaderResources()}.
+
+    \code
+        const int N = 2;
+        const int UB_SIZE = 64 + 4; // assuming a uniform block with { mat4 matrix; float opacity; }
+        const int ONE_UBUF_SIZE = rhi->ubufAligned(UB_SIZE);
+        const int TOTAL_UBUF_SIZE = N * ONE_UBUF_SIZE;
+        QRhiBuffer *ubuf = rhi->newBuffer(QRhiBuffer::Dynamic, QRhiBuffer::UniformBuffer, TOTAL_UBUF_SIZE);
+        if (!ubuf->create()) { error(); }
+        QRhiResourceUpdateBatch *batch = rhi->nextResourceUpdateBatch();
+        for (int i = 0; i < N; ++i) {
+            batch->updateDynamicBuffer(ubuf, i * ONE_UBUF_SIZE, 64, matrix.constData());
+            updates->updateDynamicBuffer(ubuf, i * ONE_UBUF_SIZE + 64, 4, &opacity);
+        }
+        // ...
+        // beginPass(), set pipeline, etc., and then:
+        for (int i = 0; i < N; ++i) {
+            QRhiCommandBuffer::DynamicOffset dynOfs[] = { { 0, i * ONE_UBUF_SIZE } };
+            cb->setShaderResources(srb, 1, dynOfs);
+            cb->draw(36);
+        }
+    \endcode
+
+    \sa QRhiResourceUpdateBatch, QRhi, QRhiCommandBuffer
  */
 
 /*!
@@ -2275,42 +3506,29 @@ QRhi *QRhiResource::rhi() const
     Flag values to specify how the buffer is going to be used.
 
     \value VertexBuffer Vertex buffer. This allows the QRhiBuffer to be used in
-    \l{setVertexInput()}{QRhiCommandBuffer::setVertexInput()}.
+    \l{QRhiCommandBuffer::setVertexInput()}{setVertexInput()}.
 
     \value IndexBuffer Index buffer. This allows the QRhiBuffer to be used in
-    \l{setVertexInput()}{QRhiCommandBuffer::setVertexInput()}.
+    \l{QRhiCommandBuffer::setVertexInput()}{setVertexInput()}.
 
     \value UniformBuffer Uniform buffer (also called constant buffer). This
     allows the QRhiBuffer to be used in combination with
-    \l{UniformBuffer}{QRhiShaderResourceBinding::UniformBuffer}. When
+    \l{QRhiShaderResourceBinding::UniformBuffer}{UniformBuffer}. When
     \l{QRhi::NonDynamicUniformBuffers}{NonDynamicUniformBuffers} is reported as
     not supported, this usage can only be combined with the type Dynamic.
 
     \value StorageBuffer Storage buffer. This allows the QRhiBuffer to be used
-    in combination with \l{BufferLoad}{QRhiShaderResourceBinding::BufferLoad},
-    \l{BufferStore}{QRhiShaderResourceBinding::BufferStore}, or
-    \l{BufferLoadStore}{QRhiShaderResourceBinding::BufferLoadStore}. This usage
+    in combination with \l{QRhiShaderResourceBinding::BufferLoad}{BufferLoad},
+    \l{QRhiShaderResourceBinding::BufferStore}{BufferStore}, or
+    \l{QRhiShaderResourceBinding::BufferLoadStore}{BufferLoadStore}. This usage
     can only be combined with the types Immutable or Static, and is only
     available when the \l{QRhi::Compute}{Compute feature} is reported as
     supported.
  */
 
-/*!
-    \fn void QRhiBuffer::setSize(int sz)
-
-    Sets the size of the buffer in bytes. The size is normally specified in
-    QRhi::newBuffer() so this function is only used when the size has to be
-    changed. As with other setters, the size only takes effect when calling
-    create(), and for already created buffers this involves releasing the previous
-    native resource and creating new ones under the hood.
-
-    Backends may choose to allocate buffers bigger than \a sz in order to
-    fulfill alignment requirements. This is hidden from the applications and
-    size() will always report the size requested in \a sz.
- */
-
 /*!
     \class QRhiBuffer::NativeBuffer
+    \inmodule QtGui
     \brief Contains information about the underlying native resources of a buffer.
  */
 
@@ -2322,10 +3540,13 @@ QRhi *QRhiResource::rhi() const
     objects array are pointers to a GLuint. With Vulkan, the native handle is a
     VkBuffer, so the elements of the array are pointers to a VkBuffer. With
     Direct3D 11 and Metal the elements are pointers to a ID3D11Buffer or
-    MTLBuffer pointer, respectively.
+    MTLBuffer pointer, respectively. With Direct3D 12, the elements are
+    pointers to a ID3D12Resource.
 
     \note Pay attention to the fact that the elements are always pointers to
     the native buffer handle type, even if the native type itself is a pointer.
+    (so the elements are \c{VkBuffer *} on Vulkan, even though VkBuffer itself
+    is a pointer on 64-bit architectures).
  */
 
 /*!
@@ -2361,7 +3582,7 @@ QRhiResource::Type QRhiBuffer::resourceType() const
 }
 
 /*!
-    \fn bool QRhiBuffer::create()
+    \fn virtual bool QRhiBuffer::create() = 0
 
     Creates the corresponding native graphics resources. If there are already
     resources present due to an earlier create() with no corresponding
@@ -2371,6 +3592,50 @@ QRhiResource::Type QRhiBuffer::resourceType() const
     Regardless of the return value, calling destroy() is always safe.
  */
 
+/*!
+    \fn QRhiBuffer::Type QRhiBuffer::type() const
+    \return the buffer type.
+ */
+
+/*!
+    \fn void QRhiBuffer::setType(Type t)
+    Sets the buffer's type to \a t.
+ */
+
+/*!
+    \fn QRhiBuffer::UsageFlags QRhiBuffer::usage() const
+    \return the buffer's usage flags.
+ */
+
+/*!
+    \fn void QRhiBuffer::setUsage(UsageFlags u)
+    Sets the buffer's usage flags to \a u.
+ */
+
+/*!
+    \fn quint32 QRhiBuffer::size() const
+
+    \return the buffer's size in bytes.
+
+    This is always the value that was passed to setSize() or QRhi::newBuffer().
+    Internally, the native buffers may be bigger if that is required by the
+    underlying graphics API.
+ */
+
+/*!
+    \fn void QRhiBuffer::setSize(quint32 sz)
+
+    Sets the size of the buffer in bytes. The size is normally specified in
+    QRhi::newBuffer() so this function is only used when the size has to be
+    changed. As with other setters, the size only takes effect when calling
+    create(), and for already created buffers this involves releasing the previous
+    native resource and creating new ones under the hood.
+
+    Backends may choose to allocate buffers bigger than \a sz in order to
+    fulfill alignment requirements. This is hidden from the applications and
+    size() will always report the size requested in \a sz.
+ */
+
 /*!
     \return the underlying native resources for this buffer. The returned value
     will be empty if exposing the underlying native resources is not supported by
@@ -2459,18 +3724,18 @@ void QRhiBuffer::endFullDynamicBufferUpdateForCurrentFrame()
 
 /*!
     \class QRhiRenderBuffer
-    \internal
     \inmodule QtGui
+    \since 6.6
     \brief Renderbuffer resource.
 
     Renderbuffers cannot be sampled or read but have some benefits over
     textures in some cases:
 
-    A DepthStencil renderbuffer may be lazily allocated and be backed by
+    A \l DepthStencil renderbuffer may be lazily allocated and be backed by
     transient memory with some APIs. On some platforms this may mean the
     depth/stencil buffer uses no physical backing at all.
 
-    Color renderbuffers are useful since QRhi::MultisampleRenderBuffer may be
+    \l Color renderbuffers are useful since QRhi::MultisampleRenderBuffer may be
     supported even when QRhi::MultisampleTexture is not.
 
     How the renderbuffer is implemented by a backend is not exposed to the
@@ -2484,6 +3749,9 @@ void QRhiBuffer::endFullDynamicBufferUpdateForCurrentFrame()
     QRhi provides automatic sizing behavior to match the color buffers, which
     means calling setPixelSize() and create() are not necessary for such
     renderbuffers.
+
+    \note This is a RHI API with limited compatibility guarantees, see \l QRhi
+    for details.
  */
 
 /*!
@@ -2494,6 +3762,22 @@ void QRhiBuffer::endFullDynamicBufferUpdateForCurrentFrame()
     \value Color Color
  */
 
+/*!
+    \struct QRhiRenderBuffer::NativeRenderBuffer
+    \inmodule QtGui
+    \brief Wraps a native renderbuffer object.
+ */
+
+/*!
+    \variable QRhiRenderBuffer::NativeRenderBuffer::object
+    \brief 64-bit integer containing the native object handle.
+
+    Used with QRhiRenderBuffer::createFrom().
+
+    With OpenGL the native handle is a GLuint value. \c object is expected to
+    be a valid OpenGL renderbuffer object ID.
+ */
+
 /*!
     \enum QRhiRenderBuffer::Flag
     Flag values for flags() and setFlags()
@@ -2531,7 +3815,7 @@ QRhiResource::Type QRhiRenderBuffer::resourceType() const
 }
 
 /*!
-    \fn bool QRhiRenderBuffer::create()
+    \fn virtual bool QRhiRenderBuffer::create() = 0
 
     Creates the corresponding native graphics resources. If there are already
     resources present due to an earlier create() with no corresponding
@@ -2580,16 +3864,121 @@ bool QRhiRenderBuffer::createFrom(NativeRenderBuffer src)
 }
 
 /*!
-    \fn QRhiTexture::Format QRhiRenderBuffer::backingFormat() const
+    \fn QRhiRenderBuffer::Type QRhiRenderBuffer::type() const
+    \return the renderbuffer type.
+ */
+
+/*!
+    \fn void QRhiRenderBuffer::setType(Type t)
+    Sets the type to \a t.
+ */
+
+/*!
+    \fn QSize QRhiRenderBuffer::pixelSize() const
+    \return the pixel size.
+ */
+
+/*!
+    \fn void QRhiRenderBuffer::setPixelSize(const QSize &sz)
+    Sets the size (in pixels) to \a sz.
+ */
+
+/*!
+    \fn int QRhiRenderBuffer::sampleCount() const
+    \return the sample count. 1 means no multisample antialiasing.
+ */
+
+/*!
+    \fn void QRhiRenderBuffer::setSampleCount(int s)
+    Sets the sample count to \a s.
+ */
+
+/*!
+    \fn QRhiRenderBuffer::Flags QRhiRenderBuffer::flags() const
+    \return the flags.
+ */
+
+/*!
+    \fn void QRhiRenderBuffer::setFlags(Flags f)
+    Sets the flags to \a f.
+ */
+
+/*!
+    \fn virtual QRhiTexture::Format QRhiRenderBuffer::backingFormat() const = 0
 
     \internal
  */
 
 /*!
     \class QRhiTexture
-    \internal
     \inmodule QtGui
+    \since 6.6
     \brief Texture resource.
+
+    A QRhiTexture encapsulates a native texture object, such as a \c VkImage or
+    \c MTLTexture.
+
+    A QRhiTexture instance is always created by calling
+    \l{QRhi::newTexture()}{the QRhi's newTexture() function}. This creates no
+    native graphics resources. To do that, call create() after setting the
+    appropriate options, such as the format and size, although in most cases
+    these are already set based on the arguments passed to
+    \l{QRhi::newTexture()}{newTexture()}.
+
+    Setting the \l{QRhiTexture::Flags}{flags} correctly is essential, otherwise
+    various errors can occur depending on the underlying QRhi backend and
+    graphics API. For example, when a texture will be rendered into from a
+    render pass via QRhiTextureRenderTarget, the texture must be created with
+    the \l RenderTarget flag set. Similarly, when the texture is going to be
+    \l{QRhiResourceUpdateBatch::readBackTexture()}{read back}, the \l
+    UsedAsTransferSource flag must be set upfront. Mipmapped textures must have
+    the MipMapped flag set. And so on. It is not possible to change the flags
+    once create() has succeeded. To release the existing and create a new
+    native texture object with the changed settings, call the setters and call
+    create() again. This then might be a potentially expensive operation.
+
+    \section2 Example usage
+
+    To create a 2D texture with a size of 512x512 pixels and set its contents to all green:
+
+    \code
+        QRhiTexture *texture = rhi->newTexture(QRhiTexture::RGBA8, QSize(512, 512));
+        if (!texture->create()) { error(); }
+        QRhiResourceUpdateBatch *batch = rhi->nextResourceUpdateBatch();
+        QImage image(512, 512, QImage::Format_RGBA8888);
+        image.fill(Qt::green);
+        batch->uploadTexture(texture, image);
+        // ...
+        commandBuffer->resourceUpdate(batch); // or, alternatively, pass 'batch' to a beginPass() call
+    \endcode
+
+    \section2 Common patterns
+
+    A call to create() destroys any existing native resources if create() was
+    successfully called before. If those native resources are still in use by
+    an in-flight frame (i.e., there's a chance they are still read by the GPU),
+    the destroying of those resources is deferred automatically. Thus a very
+    common and convenient pattern to safely change the size of an already
+    existing texture is the following. In practice this drops and creates a
+    whole new native texture resource underneath, so it is not necessarily a
+    cheap operation, but is more convenient and still faster than the
+    alternatives, because by not destroying the \c texture object itself, all
+    references to it stay valid in other data structures (e.g., in any
+    QShaderResourceBinding the QRhiTexture is referenced from).
+
+    \code
+        // determine newSize, e.g. based on the swapchain's output size or other factors
+        if (texture->pixelSize() != newSize) {
+            texture->setPixelSize(newSize);
+            if (!texture->create()) { error(); }
+        }
+        // continue using texture, fill it with new data
+    \endcode
+
+    \note This is a RHI API with limited compatibility guarantees, see \l QRhi
+    for details.
+
+    \sa QRhiResourceUpdateBatch, QRhi, QRhiTextureRenderTarget
  */
 
 /*!
@@ -2656,6 +4045,14 @@ bool QRhiRenderBuffer::createFrom(NativeRenderBuffer src)
      QRhi::TextureArrays feature. When rendering into, or uploading data to a
      texture array, the \c layer specified in the render target's color
      attachment or the upload description selects a single element in the array.
+
+     \value OneDimensional The texture is a 1D texture. Such textures can be
+     created by passing a 0 height and depth to QRhi::newTexture(). Note that
+     there can be limitations on one dimensional textures depending on the
+     underlying graphics API. For example, rendering to them or using them with
+     mipmap-based filtering may be unsupported. This is indicated by the
+     QRhi::OneDimensionalTextures and QRhi::OneDimensionalTextureMipmaps
+     feature flags.
  */
 
 /*!
@@ -2689,7 +4086,7 @@ bool QRhiRenderBuffer::createFrom(NativeRenderBuffer src)
 
     \value R32F One component, 32-bit float.
 
-    \value RGBA10A2 Four components, unsigned normalized 10 bit R, G, and B,
+    \value RGB10A2 Four components, unsigned normalized 10 bit R, G, and B,
     2-bit alpha. This is a packed format so native endianness applies. Note
     that there is no BGR10A2. This is because RGB10A2 maps to
     DXGI_FORMAT_R10G10B10A2_UNORM with D3D, MTLPixelFormatRGB10A2Unorm with
@@ -2735,7 +4132,8 @@ bool QRhiRenderBuffer::createFrom(NativeRenderBuffer src)
  */
 
 /*!
-    \class QRhiTexture::NativeTexture
+    \struct QRhiTexture::NativeTexture
+    \inmodule QtGui
     \brief Contains information about the underlying native resources of a texture.
  */
 
@@ -2744,9 +4142,10 @@ bool QRhiRenderBuffer::createFrom(NativeRenderBuffer src)
     \brief 64-bit integer containing the native object handle.
 
     With OpenGL, the native handle is a GLuint value, so \c object can then be
-    cast to a GLuint. With Vulkan, the native handle is a VkImage, so \c
-    object can be cast to a VkImage. With Direct3D 11 and Metal \c
-    object contains a ID3D11Texture2D or MTLTexture pointer, respectively.
+    cast to a GLuint. With Vulkan, the native handle is a VkImage, so \c object
+    can be cast to a VkImage. With Direct3D 11 and Metal \c object contains a
+    ID3D11Texture2D or MTLTexture pointer, respectively. With Direct3D 12
+    \c object contains a ID3D12Resource pointer.
  */
 
 /*!
@@ -2776,7 +4175,7 @@ QRhiResource::Type QRhiTexture::resourceType() const
 }
 
 /*!
-    \fn bool QRhiTexture::create()
+    \fn virtual bool QRhiTexture::create() = 0
 
     Creates the corresponding native graphics resources. If there are already
     resources present due to an earlier create() with no corresponding
@@ -2799,13 +4198,16 @@ QRhiTexture::NativeTexture QRhiTexture::nativeTexture()
 }
 
 /*!
-    Similar to create() except that no new native textures are created. Instead,
-    the native texture resources specified by \a src is used.
+    Similar to create(), except that no new native textures are created.
+    Instead, the native texture resources specified by \a src is used.
 
     This allows importing an existing native texture object (which must belong
     to the same device or sharing context, depending on the graphics API) from
     an external graphics engine.
 
+    \return true if the specified existing native texture object has been
+    successfully wrapped as a non-owning QRhiTexture.
+
     \note format(), pixelSize(), sampleCount(), and flags() must still be set
     correctly. Passing incorrect sizes and other values to QRhi::newTexture()
     and then following it with a createFrom() expecting that the native texture
@@ -2832,7 +4234,7 @@ bool QRhiTexture::createFrom(QRhiTexture::NativeTexture src)
 /*!
     With some graphics APIs, such as Vulkan, integrating custom rendering code
     that uses the graphics API directly needs special care when it comes to
-    image layouts. This function allows communicating the expected layout the
+    image layouts. This function allows communicating the expected \a layout the
     image backing the QRhiTexture is in after the native rendering commands.
 
     For example, consider rendering into a QRhiTexture's VkImage directly with
@@ -2848,17 +4250,125 @@ bool QRhiTexture::createFrom(QRhiTexture::NativeTexture src)
 
     This function has no effect with QRhi backends where the underlying
     graphics API does not expose a concept of image layouts.
+
+    \note With Vulkan \a layout is a \c VkImageLayout. With Direct 3D 12 \a
+    layout is a value composed of the bits from \c D3D12_RESOURCE_STATES.
  */
 void QRhiTexture::setNativeLayout(int layout)
 {
     Q_UNUSED(layout);
 }
 
+/*!
+    \fn QRhiTexture::Format QRhiTexture::format() const
+    \return the texture format.
+ */
+
+/*!
+    \fn void QRhiTexture::setFormat(QRhiTexture::Format fmt)
+
+    Sets the requested texture format to \a fmt.
+
+    \note The value set is only taken into account upon the next call to
+    create(), i.e. when the underlying graphics resource are (re)created.
+    Setting a new value is futile otherwise and must be avoided since it can
+    lead to inconsistent state.
+ */
+
+/*!
+    \fn QSize QRhiTexture::pixelSize() const
+    \return the size in pixels.
+ */
+
+/*!
+    \fn void QRhiTexture::setPixelSize(const QSize &sz)
+
+    Sets the texture size, specified in pixels, to \a sz.
+
+    \note The value set is only taken into account upon the next call to
+    create(), i.e. when the underlying graphics resource are (re)created.
+    Setting a new value is futile otherwise and must be avoided since it can
+    lead to inconsistent state. The same applies to all other setters as well.
+ */
+
+/*!
+    \fn int QRhiTexture::depth() const
+    \return the depth for 3D textures.
+ */
+
+/*!
+    \fn void QRhiTexture::setDepth(int depth)
+    Sets the \a depth for a 3D texture.
+ */
+
+/*!
+    \fn int QRhiTexture::arraySize() const
+    \return the texture array size.
+ */
+
+/*!
+    \fn void QRhiTexture::setArraySize(int arraySize)
+    Sets the texture \a arraySize.
+ */
+
+/*!
+    \fn int QRhiTexture::arrayRangeStart() const
+
+    \return the first array layer when setArrayRange() was called.
+
+    \sa setArrayRange()
+ */
+
+/*!
+    \fn int QRhiTexture::arrayRangeLength() const
+
+    \return the exposed array range size when setArrayRange() was called.
+
+    \sa setArrayRange()
+*/
+
+/*!
+    \fn void QRhiTexture::setArrayRange(int startIndex, int count)
+
+    Normally all array layers are exposed and it is up to the shader to select
+    the layer via the third coordinate passed to the \c{texture()} GLSL
+    function when sampling the \c sampler2DArray. When QRhi::TextureArrayRange
+    is reported as supported, calling setArrayRange() before create() or
+    createFrom() requests selecting only the specified range, \a count elements
+    starting from \a startIndex. The shader logic can then be written with this
+    in mind.
+
+    \sa QRhi::TextureArrayRange
+ */
+
+/*!
+    \fn Flags QRhiTexture::flags() const
+    \return the texture flags.
+ */
+
+/*!
+    \fn void QRhiTexture::setFlags(Flags f)
+    Sets the texture flags to \a f.
+ */
+
+/*!
+    \fn int QRhiTexture::sampleCount() const
+    \return the sample count. 1 means no multisample antialiasing.
+ */
+
+/*!
+    \fn void QRhiTexture::setSampleCount(int s)
+    Sets the sample count to \a s.
+ */
+
 /*!
     \class QRhiSampler
-    \internal
     \inmodule QtGui
+    \since 6.6
     \brief Sampler resource.
+
+    \note This is a RHI API with limited compatibility guarantees, see \l QRhi
+    for details.
  */
 
 /*!
@@ -2914,15 +4424,92 @@ QRhiResource::Type QRhiSampler::resourceType() const
     return Sampler;
 }
 
+/*!
+    \fn QRhiSampler::Filter QRhiSampler::magFilter() const
+    \return the magnification filter mode.
+ */
+
+/*!
+    \fn void QRhiSampler::setMagFilter(Filter f)
+    Sets the magnification filter mode to \a f.
+ */
+
+/*!
+    \fn QRhiSampler::Filter QRhiSampler::minFilter() const
+    \return the minification filter mode.
+ */
+
+/*!
+    \fn void QRhiSampler::setMinFilter(Filter f)
+    Sets the minification filter mode to \a f.
+ */
+
+/*!
+    \fn QRhiSampler::Filter QRhiSampler::mipmapMode() const
+    \return the mipmap filter mode.
+ */
+
+/*!
+    \fn void QRhiSampler::setMipmapMode(Filter f)
+
+    Sets the mipmap filter mode to \a f.
+
+    Leave this set to None when the texture has no mip levels, or when the mip
+    levels are not to be taken into account.
+ */
+
+/*!
+    \fn QRhiSampler::AddressMode QRhiSampler::addressU() const
+    \return the horizontal wrap mode.
+ */
+
+/*!
+    \fn void QRhiSampler::setAddressU(AddressMode mode)
+    Sets the horizontal wrap \a mode.
+ */
+
+/*!
+    \fn QRhiSampler::AddressMode QRhiSampler::addressV() const
+    \return the vertical wrap mode.
+ */
+
+/*!
+    \fn void QRhiSampler::setAddressV(AddressMode mode)
+    Sets the vertical wrap \a mode.
+ */
+
+/*!
+    \fn QRhiSampler::AddressMode QRhiSampler::addressW() const
+    \return the depth wrap mode.
+ */
+
+/*!
+    \fn void QRhiSampler::setAddressW(AddressMode mode)
+    Sets the depth wrap \a mode.
+ */
+
+/*!
+    \fn QRhiSampler::CompareOp QRhiSampler::textureCompareOp() const
+    \return the texture comparison function.
+ */
+
+/*!
+    \fn void QRhiSampler::setTextureCompareOp(CompareOp op)
+    Sets the texture comparison function \a op.
+ */
+
 /*!
     \class QRhiRenderPassDescriptor
-    \internal
     \inmodule QtGui
+    \since 6.6
     \brief Render pass resource.
 
     A render pass, if such a concept exists in the underlying graphics API, is
     a collection of attachments (color, depth, stencil) and describes how those
     attachments are used.
+
+    \note This is a RHI API with limited compatibility guarantees, see \l QRhi
+    for details.
  */
 
 /*!
@@ -2942,7 +4529,7 @@ QRhiResource::Type QRhiRenderPassDescriptor::resourceType() const
 }
 
 /*!
-    \fn bool QRhiRenderPassDescriptor::isCompatible(const QRhiRenderPassDescriptor *other) const
+    \fn virtual bool QRhiRenderPassDescriptor::isCompatible(const QRhiRenderPassDescriptor *other) const = 0
 
     \return true if the \a other QRhiRenderPassDescriptor is compatible with
     this one, meaning \c this and \a other can be used interchangebly in
@@ -2977,7 +4564,7 @@ QRhiResource::Type QRhiRenderPassDescriptor::resourceType() const
  */
 
 /*!
-    \fn QRhiRenderPassDescriptor *QRhiRenderPassDescriptor::newCompatibleRenderPassDescriptor() const
+    \fn virtual QRhiRenderPassDescriptor *QRhiRenderPassDescriptor::newCompatibleRenderPassDescriptor() const = 0
 
     \return a new QRhiRenderPassDescriptor that is
     \l{isCompatible()}{compatible} with this one.
@@ -2998,7 +4585,7 @@ QRhiResource::Type QRhiRenderPassDescriptor::resourceType() const
  */
 
 /*!
-    \fn QVector<quint32> QRhiRenderPassDescriptor::serializedFormat() const
+    \fn virtual QVector<quint32> QRhiRenderPassDescriptor::serializedFormat() const = 0
 
     \return a vector of integers containing an opaque blob describing the data
     relevant for \l{isCompatible()}{compatibility}.
@@ -3029,10 +4616,20 @@ const QRhiNativeHandles *QRhiRenderPassDescriptor::nativeHandles()
 
 /*!
     \class QRhiRenderTarget
-    \internal
     \inmodule QtGui
+    \since 6.6
     \brief Represents an onscreen (swapchain) or offscreen (texture) render target.
 
+    Applications do not create an instance of this class directly. Rather, it
+    is the subclass QRhiTextureRenderTarget that is instantiable by clients of
+    the API via \l{QRhi::newTextureRenderTarget()}{newTextureRenderTarget()}.
+    The other subclass is QRhiSwapChainRenderTarget, which is the type
+    QRhiSwapChain returns when calling
+    \l{QRhiSwapChain::currentFrameRenderTarget()}{currentFrameRenderTarget()}.
+
+    \note This is a RHI API with limited compatibility guarantees, see \l QRhi
+    for details.
+
     \sa QRhiSwapChainRenderTarget, QRhiTextureRenderTarget
  */
 
@@ -3045,7 +4642,7 @@ QRhiRenderTarget::QRhiRenderTarget(QRhiImplementation *rhi)
 }
 
 /*!
-    \fn QSize QRhiRenderTarget::pixelSize() const
+    \fn virtual QSize QRhiRenderTarget::pixelSize() const = 0
 
     \return the size in pixels.
 
@@ -3063,7 +4660,7 @@ QRhiRenderTarget::QRhiRenderTarget(QRhiImplementation *rhi)
  */
 
 /*!
-    \fn float QRhiRenderTarget::devicePixelRatio() const
+    \fn virtual float QRhiRenderTarget::devicePixelRatio() const = 0
 
     \return the device pixel ratio. For QRhiTextureRenderTarget this is always
     1. For targets retrieved from a QRhiSwapChain the value reflects the
@@ -3071,6 +4668,25 @@ QRhiRenderTarget::QRhiRenderTarget(QRhiImplementation *rhi)
     QWindow.
  */
 
+/*!
+    \fn virtual int QRhiRenderTarget::sampleCount() const = 0
+
+    \return the sample count or 1 if multisample antialiasing is not relevant for
+    this render target.
+ */
+
+/*!
+    \fn QRhiRenderPassDescriptor *QRhiRenderTarget::renderPassDescriptor() const
+
+    \return the associated QRhiRenderPassDescriptor.
+ */
+
+/*!
+    \fn void QRhiRenderTarget::setRenderPassDescriptor(QRhiRenderPassDescriptor *desc)
+
+    Sets the QRhiRenderPassDescriptor \a desc for use with this render target.
+ */
+
 /*!
     \internal
  */
@@ -3082,14 +4698,17 @@ QRhiSwapChainRenderTarget::QRhiSwapChainRenderTarget(QRhiImplementation *rhi, QR
 
 /*!
     \class QRhiSwapChainRenderTarget
-    \internal
     \inmodule QtGui
+    \since 6.6
     \brief Swapchain render target resource.
 
     When targeting the color buffers of a swapchain, active render target is a
     QRhiSwapChainRenderTarget. This is what
     QRhiSwapChain::currentFrameRenderTarget() returns.
 
+    \note This is a RHI API with limited compatibility guarantees, see \l QRhi
+    for details.
+
     \sa QRhiSwapChain
  */
 
@@ -3109,8 +4728,8 @@ QRhiResource::Type QRhiSwapChainRenderTarget::resourceType() const
 
 /*!
     \class QRhiTextureRenderTarget
-    \internal
     \inmodule QtGui
+    \since 6.6
     \brief Texture render target resource.
 
     A texture render target allows rendering into one or more textures,
@@ -3126,15 +4745,18 @@ QRhiResource::Type QRhiSwapChainRenderTarget::resourceType() const
     The simplest example of creating a render target with a texture as its
     single color attachment:
 
-    \badcode
-        texture = rhi->newTexture(QRhiTexture::RGBA8, size, 1, QRhiTexture::RenderTarget);
+    \code
+        QRhiTexture *texture = rhi->newTexture(QRhiTexture::RGBA8, size, 1, QRhiTexture::RenderTarget);
         texture->create();
-        rt = rhi->newTextureRenderTarget({ texture });
+        QRhiTextureRenderTarget *rt = rhi->newTextureRenderTarget({ texture });
         rp = rt->newCompatibleRenderPassDescriptor();
         rt->setRenderPassDescriptor(rt);
         rt->create();
         // rt can now be used with beginPass()
     \endcode
+
+    \note This is a RHI API with limited compatibility guarantees, see \l QRhi
+    for details.
  */
 
 /*!
@@ -3180,7 +4802,7 @@ QRhiResource::Type QRhiTextureRenderTarget::resourceType() const
 }
 
 /*!
-    \fn QRhiRenderPassDescriptor *QRhiTextureRenderTarget::newCompatibleRenderPassDescriptor()
+    \fn virtual QRhiRenderPassDescriptor *QRhiTextureRenderTarget::newCompatibleRenderPassDescriptor() = 0
 
     \return a new QRhiRenderPassDescriptor that is compatible with this render
     target.
@@ -3190,7 +4812,8 @@ QRhiResource::Type QRhiTextureRenderTarget::resourceType() const
     QRhiGraphicsPipeline::setRenderPassDescriptor(). A render pass descriptor
     describes the attachments (color, depth/stencil) and the load/store
     behavior that can be affected by flags(). A QRhiGraphicsPipeline can only
-    be used in combination with a render target that has the same
+    be used in combination with a render target that has a
+    \l{QRhiRenderPassDescriptor::isCompatible()}{compatible}
     QRhiRenderPassDescriptor set.
 
     Two QRhiTextureRenderTarget instances can share the same render pass
@@ -3206,7 +4829,7 @@ QRhiResource::Type QRhiTextureRenderTarget::resourceType() const
  */
 
 /*!
-    \fn bool QRhiTextureRenderTarget::create()
+    \fn virtual bool QRhiTextureRenderTarget::create() = 0
 
     Creates the corresponding native graphics resources. If there are already
     resources present due to an earlier create() with no corresponding
@@ -3229,10 +4852,30 @@ QRhiResource::Type QRhiTextureRenderTarget::resourceType() const
     Regardless of the return value, calling destroy() is always safe.
  */
 
+/*!
+    \fn QRhiTextureRenderTargetDescription QRhiTextureRenderTarget::description() const
+    \return the render target description.
+ */
+
+/*!
+    \fn void QRhiTextureRenderTarget::setDescription(const QRhiTextureRenderTargetDescription &desc)
+    Sets the render target description \a desc.
+ */
+
+/*!
+    \fn QRhiTextureRenderTarget::Flags QRhiTextureRenderTarget::flags() const
+    \return the currently set flags.
+ */
+
+/*!
+    \fn void QRhiTextureRenderTarget::setFlags(Flags f)
+    Sets the flags to \a f.
+ */
+
 /*!
     \class QRhiShaderResourceBindings
-    \internal
     \inmodule QtGui
+    \since 6.6
     \brief Encapsulates resources for making buffer, texture, sampler resources visible to shaders.
 
     A QRhiShaderResourceBindings is a collection of QRhiShaderResourceBinding
@@ -3253,19 +4896,19 @@ QRhiResource::Type QRhiTextureRenderTarget::resourceType() const
     QRhiShaderResourceBindings could be created and then passed to
     QRhiGraphicsPipeline::setShaderResourceBindings():
 
-    \badcode
-        srb = rhi->newShaderResourceBindings();
+    \code
+        QRhiShaderResourceBindings *srb = rhi->newShaderResourceBindings();
         srb->setBindings({
             QRhiShaderResourceBinding::uniformBuffer(0, QRhiShaderResourceBinding::VertexStage | QRhiShaderResourceBinding::FragmentStage, ubuf),
             QRhiShaderResourceBinding::sampledTexture(1, QRhiShaderResourceBinding::FragmentStage, texture, sampler)
         });
         srb->create();
-        ...
-        ps = rhi->newGraphicsPipeline();
-        ...
+        // ...
+        QRhiGraphicsPipeline *ps = rhi->newGraphicsPipeline();
+        // ...
         ps->setShaderResourceBindings(srb);
         ps->create();
-        ...
+        // ...
         cb->setGraphicsPipeline(ps);
         cb->setShaderResources(); // binds srb
     \endcode
@@ -3284,14 +4927,17 @@ QRhiResource::Type QRhiTextureRenderTarget::resourceType() const
     srb argument. As long as the layouts (so the number of bindings and the
     binding points) match between two QRhiShaderResourceBindings, they can both
     be used with the same pipeline, assuming the pipeline was created with one of
-    them in the first place.
+    them in the first place. See isLayoutCompatible() for more details.
 
-    \badcode
-        srb2 = rhi->newShaderResourceBindings();
-        ...
+    \code
+        QRhiShaderResourceBindings *srb2 = rhi->newShaderResourceBindings();
+        // ...
         cb->setGraphicsPipeline(ps);
         cb->setShaderResources(srb2); // binds srb2
     \endcode
+
+    \note This is a RHI API with limited compatibility guarantees, see \l QRhi
+    for details.
  */
 
 /*!
@@ -3357,7 +5003,7 @@ bool QRhiShaderResourceBindings::isLayoutCompatible(const QRhiShaderResourceBind
     \l{isLayoutCompatible()}{layout compatibility tests}.
 
     Given two objects \c srb1 and \c srb2, if the data returned from this
-    function is identical, then \c{srb1->isLayoutCompatible(srb2), and vice
+    function is identical, then \c{srb1->isLayoutCompatible(srb2)}, and vice
     versa hold true as well.
 
     \note The returned data is meant to be used for storing in memory and
@@ -3374,22 +5020,55 @@ void QRhiImplementation::updateLayoutDesc(QRhiShaderResourceBindings *srb)
     srb->m_layoutDesc.clear();
     auto layoutDescAppender = std::back_inserter(srb->m_layoutDesc);
     for (const QRhiShaderResourceBinding &b : std::as_const(srb->m_bindings)) {
-        const QRhiShaderResourceBinding::Data *d = b.data();
+        const QRhiShaderResourceBinding::Data *d = &b.d;
         srb->m_layoutDescHash ^= uint(d->binding) ^ uint(d->stage) ^ uint(d->type)
             ^ uint(d->arraySize());
         layoutDescAppender = d->serialize(layoutDescAppender);
     }
 }
 
+/*!
+    \fn void QRhiShaderResourceBindings::setBindings(std::initializer_list<QRhiShaderResourceBinding> list)
+    Sets the \a list of bindings.
+ */
+
+/*!
+    \fn template<typename InputIterator> void QRhiShaderResourceBindings::setBindings(InputIterator first, InputIterator last)
+    Sets the list of bindings from the iterators \a first and \a last.
+ */
+
+/*!
+    \fn const QRhiShaderResourceBinding *QRhiShaderResourceBindings::cbeginBindings() const
+    \return a const iterator pointing to the first item in the binding list.
+ */
+
+/*!
+    \fn const QRhiShaderResourceBinding *QRhiShaderResourceBindings::cendBindings() const
+    \return a const iterator pointing just after the last item in the binding list.
+ */
+
+/*!
+    \fn const QRhiShaderResourceBinding *QRhiShaderResourceBindings::bindingAt(qsizetype index) const
+    \return the binding at the specified \a index.
+ */
+
+/*!
+    \fn qsizetype QRhiShaderResourceBindings::bindingCount() const
+    \return the number of bindings.
+ */
+
 /*!
     \class QRhiShaderResourceBinding
-    \internal
     \inmodule QtGui
+    \since 6.6
     \brief Describes the shader resource for a single binding point.
 
     A QRhiShaderResourceBinding cannot be constructed directly. Instead, use the
     static functions such as uniformBuffer() or sampledTexture() to get an
     instance.
+
+    \note This is a RHI API with limited compatibility guarantees, see \l QRhi
+    for details.
  */
 
 /*!
@@ -3398,7 +5077,15 @@ void QRhiImplementation::updateLayoutDesc(QRhiShaderResourceBindings *srb)
 
     \value UniformBuffer Uniform buffer
 
-    \value SampledTexture Combined image sampler
+    \value SampledTexture Combined image sampler (a texture and sampler pair).
+    Even when the shading language associated with the underlying 3D API has no
+    support for this concept (e.g. D3D and HLSL), this is still supported
+    because the shader translation layer takes care of the appropriate
+    translation and remapping of binding points or shader registers.
+
+    \value Texture Texture (separate)
+
+    \value Sampler Sampler (separate)
 
     \value ImageLoad Image load (with GLSL this maps to doing imageLoad() on a
     single level - and either one or all layers - of a texture exposed to the
@@ -3438,7 +5125,7 @@ void QRhiImplementation::updateLayoutDesc(QRhiShaderResourceBindings *srb)
 
     For example, \c a and \c b below are not equal, but are compatible layout-wise:
 
-    \badcode
+    \code
         auto a = QRhiShaderResourceBinding::uniformBuffer(0, QRhiShaderResourceBinding::VertexStage, buffer);
         auto b = QRhiShaderResourceBinding::uniformBuffer(0, QRhiShaderResourceBinding::VertexStage, someOtherBuffer, 256);
     \endcode
@@ -3573,6 +5260,14 @@ QRhiShaderResourceBinding QRhiShaderResourceBinding::uniformBufferWithDynamicOff
     together with another, layout compatible QRhiShaderResourceBindings with
     resources present passed to QRhiCommandBuffer::setShaderResources().
 
+    \note A shader may not be able to consume more than 16 textures/samplers,
+    depending on the underlying graphics API. This hard limit must be kept in
+    mind in renderer design. This does not apply to texture arrays which
+    consume a single binding point (shader register) and can contain 256-2048
+    textures, depending on the underlying graphics API. Arrays of textures (see
+    sampledTextures()) are however no different in this regard than using the
+    same number of individual textures.
+
     \sa sampledTextures()
  */
 QRhiShaderResourceBinding QRhiShaderResourceBinding::sampledTexture(
@@ -3658,6 +5353,14 @@ QRhiShaderResourceBinding QRhiShaderResourceBinding::sampledTextures(
     Vulkan-compatible GLSL code separate textures are declared as \c texture2D
     as opposed to \c sampler2D: \c{layout(binding = 1) uniform texture2D tex;}
 
+    \note A shader may not be able to consume more than 16 textures, depending
+    on the underlying graphics API. This hard limit must be kept in mind in
+    renderer design. This does not apply to texture arrays which consume a
+    single binding point (shader register) and can contain 256-2048 textures,
+    depending on the underlying graphics API. Arrays of textures (see
+    sampledTextures()) are however no different in this regard than using the
+    same number of individual textures.
+
     \sa textures(), sampler()
  */
 QRhiShaderResourceBinding QRhiShaderResourceBinding::texture(int binding, StageFlags stage, QRhiTexture *tex)
@@ -3730,6 +5433,10 @@ QRhiShaderResourceBinding QRhiShaderResourceBinding::textures(int binding, Stage
     to sample the texture: \c{fragColor = texture(sampler2D(tex, samp),
     texcoord);}.
 
+    \note A shader may not be able to consume more than 16 samplers, depending
+    on the underlying graphics API. This hard limit must be kept in mind in
+    renderer design.
+
     \sa texture()
  */
 QRhiShaderResourceBinding QRhiShaderResourceBinding::sampler(int binding, StageFlags stage, QRhiSampler *sampler)
@@ -4070,8 +5777,8 @@ QRhiShaderResourceBinding QRhiShaderResourceBinding::bufferLoadStore(
  */
 bool operator==(const QRhiShaderResourceBinding &a, const QRhiShaderResourceBinding &b) noexcept
 {
-    const QRhiShaderResourceBinding::Data *da = a.data();
-    const QRhiShaderResourceBinding::Data *db = b.data();
+    const QRhiShaderResourceBinding::Data *da = QRhiImplementation::shaderResourceBindingData(a);
+    const QRhiShaderResourceBinding::Data *db = QRhiImplementation::shaderResourceBindingData(b);
 
     if (da == db)
         return true;
@@ -4160,41 +5867,44 @@ bool operator!=(const QRhiShaderResourceBinding &a, const QRhiShaderResourceBind
  */
 size_t qHash(const QRhiShaderResourceBinding &b, size_t seed) noexcept
 {
-    const QRhiShaderResourceBinding::Data *d = b.data();
-    size_t h = uint(d->binding) ^ uint(d->stage) ^ uint(d->type) ^ seed;
+    const QRhiShaderResourceBinding::Data *d = QRhiImplementation::shaderResourceBindingData(b);
+    QtPrivate::QHashCombine hash;
+    seed = hash(seed, d->binding);
+    seed = hash(seed, d->stage);
+    seed = hash(seed, d->type);
     switch (d->type) {
     case QRhiShaderResourceBinding::UniformBuffer:
-        h ^= qHash(reinterpret_cast<quintptr>(d->u.ubuf.buf));
+        seed = hash(seed, reinterpret_cast<quintptr>(d->u.ubuf.buf));
         break;
     case QRhiShaderResourceBinding::SampledTexture:
-        h ^= qHash(reinterpret_cast<quintptr>(d->u.stex.texSamplers[0].tex));
-        h ^= qHash(reinterpret_cast<quintptr>(d->u.stex.texSamplers[0].sampler));
+        seed = hash(seed, reinterpret_cast<quintptr>(d->u.stex.texSamplers[0].tex));
+        seed = hash(seed, reinterpret_cast<quintptr>(d->u.stex.texSamplers[0].sampler));
         break;
     case QRhiShaderResourceBinding::Texture:
-        h ^= qHash(reinterpret_cast<quintptr>(d->u.stex.texSamplers[0].tex));
+        seed = hash(seed, reinterpret_cast<quintptr>(d->u.stex.texSamplers[0].tex));
         break;
     case QRhiShaderResourceBinding::Sampler:
-        h ^= qHash(reinterpret_cast<quintptr>(d->u.stex.texSamplers[0].sampler));
+        seed = hash(seed, reinterpret_cast<quintptr>(d->u.stex.texSamplers[0].sampler));
         break;
     case QRhiShaderResourceBinding::ImageLoad:
     case QRhiShaderResourceBinding::ImageStore:
     case QRhiShaderResourceBinding::ImageLoadStore:
-        h ^= qHash(reinterpret_cast<quintptr>(d->u.simage.tex));
+        seed = hash(seed, reinterpret_cast<quintptr>(d->u.simage.tex));
         break;
     case QRhiShaderResourceBinding::BufferLoad:
     case QRhiShaderResourceBinding::BufferStore:
     case QRhiShaderResourceBinding::BufferLoadStore:
-        h ^= qHash(reinterpret_cast<quintptr>(d->u.sbuf.buf));
+        seed = hash(seed, reinterpret_cast<quintptr>(d->u.sbuf.buf));
         break;
     }
-    return h;
+    return seed;
 }
 
 #ifndef QT_NO_DEBUG_STREAM
 QDebug operator<<(QDebug dbg, const QRhiShaderResourceBinding &b)
 {
     QDebugStateSaver saver(dbg);
-    const QRhiShaderResourceBinding::Data *d = b.data();
+    const QRhiShaderResourceBinding::Data *d = QRhiImplementation::shaderResourceBindingData(b);
     dbg.nospace() << "QRhiShaderResourceBinding("
                   << "binding=" << d->binding
                   << " stage=" << d->stage
@@ -4289,18 +5999,44 @@ QDebug operator<<(QDebug dbg, const QRhiShaderResourceBindings &srb)
 
 /*!
     \class QRhiGraphicsPipeline
-    \internal
     \inmodule QtGui
+    \since 6.6
     \brief Graphics pipeline state resource.
 
+    Represents a graphics pipeline. What exactly this map to in the underlying
+    native graphics API, varies. Where there is a concept of pipeline objects,
+    for example with Vulkan, the QRhi backend will create such an object upon
+    calling create(). Elsewhere, for example with OpenGL, the
+    QRhiGraphicsPipeline may merely collect the various state, and create()'s
+    main task is to set up the corresponding shader program, but deferring
+    looking at any of the requested state to a later point.
+
+    As with all QRhiResource subclasses, the two-phased initialization pattern
+    applies: setting any values via the setters, for example setDepthTest(), is
+    only effective after calling create(). Avoid changing any values once the
+    QRhiGraphicsPipeline has been initialized via create(). To change some
+    state, set the new value and call create() again. However, that will
+    effectively release all underlying native resources and create new ones. As
+    a result, it may be a heavy, expensive operation. Rather, prefer creating
+    multiple pipelines with the different states, and
+    \l{QRhiCommandBuffer::setGraphicsPipeline()}{switch between them} when
+    recording the render pass.
+
     \note Setting the shader stages is mandatory. There must be at least one
     stage, and there must be a vertex stage.
 
     \note Setting the shader resource bindings is mandatory. The referenced
     QRhiShaderResourceBindings must already have create() called on it by the
     time create() is called. Associating with a QRhiShaderResourceBindings that
-    has no bindings is also valid, as long as no shader in any stage expects
-    any resources.
+    has no bindings is also valid, as long as no shader in any stage expects any
+    resources. Using a QRhiShaderResourceBindings object that does not specify
+    any actual resources (i.e., the buffers, textures, etc. for the binding
+    points are set to \nullptr) is valid as well, as long as a
+    \l{QRhiShaderResourceBindings::isLayoutCompatible()}{layout-compatible}
+    QRhiShaderResourceBindings, that specifies resources for all the bindings,
+    is going to be set via
+    \l{QRhiCommandBuffer::setShaderResources()}{setShaderResources()} when
+    recording the render pass.
 
     \note Setting the render pass descriptor is mandatory. To obtain a
     QRhiRenderPassDescriptor that can be passed to setRenderPassDescriptor(),
@@ -4313,20 +6049,49 @@ QDebug operator<<(QDebug dbg, const QRhiShaderResourceBindings &srb)
     render target's color and depth stencil attachments.
 
     \note The depth test, depth write, and stencil test are disabled by
-    default.
+    default. The face culling mode defaults to no culling.
 
     \note stencilReadMask() and stencilWriteMask() apply to both faces. They
     both default to 0xFF.
- */
 
-/*!
-    \fn void QRhiGraphicsPipeline::setTargetBlends(const QList<TargetBlend> &blends)
+    \section2 Example usage
 
-    Sets the blend specification for color attachments. Each element in \a
-    blends corresponds to a color attachment of the render target.
+    All settings of a graphics pipeline have defaults which might be suitable
+    to many applications. Therefore a minimal example of creating a graphics
+    pipeline could be the following. This assumes that the vertex shader takes
+    a single \c{vec3 position} input at the input location 0. With the
+    QRhiShaderResourceBindings and QRhiRenderPassDescriptor objects, plus the
+    QShader collections for the vertex and fragment stages, a pipeline could be
+    created like this:
 
-    By default no blends are set, which is a shortcut to disabling blending and
-    enabling color write for all four channels.
+    \code
+        QRhiShaderResourceBindings *srb;
+        QRhiRenderPassDescriptor *rpDesc;
+        QShader vs, fs;
+        // ...
+
+        QRhiVertexInputLayout inputLayout;
+        inputLayout.setBindings({ { 3 * sizeof(float) } });
+        inputLayout.setAttributes({ { 0, 0, QRhiVertexInputAttribute::Float3, 0 } });
+
+        QRhiGraphicsPipeline *ps = rhi->newGraphicsPipeline();
+        ps->setShaderStages({ { QRhiShaderStage::Vertex, vs }, { QRhiShaderStage::Fragment, fs } });
+        ps->setVertexInputLayout(inputLayout);
+        ps->setShaderResourceBindings(srb);
+        ps->setRenderPassDescriptor(rpDesc);
+        if (!ps->create()) { error(); }
+    \endcode
+
+    The above code creates a pipeline object that uses the defaults for many
+    settings and states. For example, it will use a \l Triangles topology, no
+    backface culling, blending is disabled but color write is enabled for all
+    four channels, depth test/write are disabled, stencil operations are
+    disabled.
+
+    \note This is a RHI API with limited compatibility guarantees, see \l QRhi
+    for details.
+
+    \sa QRhiCommandBuffer, QRhi
  */
 
 /*!
@@ -4485,21 +6250,85 @@ QDebug operator<<(QDebug dbg, const QRhiShaderResourceBindings &srb)
  */
 
 /*!
-    \class QRhiGraphicsPipeline::TargetBlend
-    \internal
+    \struct QRhiGraphicsPipeline::TargetBlend
     \inmodule QtGui
+    \since 6.6
     \brief Describes the blend state for one color attachment.
 
     Defaults to color write enabled, blending disabled. The blend values are
     set up for pre-multiplied alpha (One, OneMinusSrcAlpha, One,
-    OneMinusSrcAlpha) by default.
+    OneMinusSrcAlpha) by default. This means that to get the alpha blending
+    mode Qt Quick uses, it is enough to set the \c enable flag to true while
+    leaving other values at their defaults.
+
+    \note This is a RHI API with limited compatibility guarantees, see \l QRhi
+    for details.
  */
 
 /*!
-    \class QRhiGraphicsPipeline::StencilOpState
-    \internal
+    \variable QRhiGraphicsPipeline::TargetBlend::colorWrite
+ */
+
+/*!
+    \variable QRhiGraphicsPipeline::TargetBlend::enable
+ */
+
+/*!
+    \variable QRhiGraphicsPipeline::TargetBlend::srcColor
+ */
+
+/*!
+    \variable QRhiGraphicsPipeline::TargetBlend::dstColor
+ */
+
+/*!
+    \variable QRhiGraphicsPipeline::TargetBlend::opColor
+ */
+
+/*!
+    \variable QRhiGraphicsPipeline::TargetBlend::srcAlpha
+ */
+
+/*!
+    \variable QRhiGraphicsPipeline::TargetBlend::dstAlpha
+ */
+
+/*!
+    \variable QRhiGraphicsPipeline::TargetBlend::opAlpha
+ */
+
+/*!
+    \struct QRhiGraphicsPipeline::StencilOpState
     \inmodule QtGui
+    \since 6.6
     \brief Describes the stencil operation state.
+
+    The default-constructed StencilOpState has the following set:
+    \list
+    \li failOp - \l Keep
+    \li depthFailOp - \l Keep
+    \li passOp - \l Keep
+    \li compareOp \l Always
+    \endlist
+
+    \note This is a RHI API with limited compatibility guarantees, see \l QRhi
+    for details.
+ */
+
+/*!
+    \variable QRhiGraphicsPipeline::StencilOpState::failOp
+ */
+
+/*!
+    \variable QRhiGraphicsPipeline::StencilOpState::depthFailOp
+ */
+
+/*!
+    \variable QRhiGraphicsPipeline::StencilOpState::passOp
+ */
+
+/*!
+    \variable QRhiGraphicsPipeline::StencilOpState::compareOp
  */
 
 /*!
@@ -4519,7 +6348,7 @@ QRhiResource::Type QRhiGraphicsPipeline::resourceType() const
 }
 
 /*!
-    \fn bool QRhiGraphicsPipeline::create()
+    \fn virtual bool QRhiGraphicsPipeline::create() = 0
 
     Creates the corresponding native graphics resources. If there are already
     resources present due to an earlier create() with no corresponding
@@ -4527,23 +6356,132 @@ QRhiResource::Type QRhiGraphicsPipeline::resourceType() const
 
     \return \c true when successful, \c false when a graphics operation failed.
     Regardless of the return value, calling destroy() is always safe.
+
+    \note This may be, depending on the underlying graphics API, an expensive
+    operation, especially when shaders get compiled/optimized from source or
+    from an intermediate bytecode format to the GPU's own instruction set.
+    Where applicable, the QRhi backend automatically sets up the relevant
+    non-persistent facilities to accelerate this, for example the Vulkan
+    backend automatically creates a \c VkPipelineCache to improve data reuse
+    during the lifetime of the application.
+
+    \note Drivers may also employ various persistent (disk-based) caching
+    strategies for shader and pipeline data, which is hidden to and is outside
+    of Qt's control. In some cases, depending on the graphics API and the QRhi
+    backend, there are facilities within QRhi for manually managing such a
+    cache, allowing the retrieval of a serializable blob that can then be
+    reloaded in the future runs of the application to ensure faster pipeline
+    creation times. See QRhi::pipelineCacheData() and
+    QRhi::setPipelineCacheData() for details. Note also that when working with
+    a QRhi instance managed by a higher level Qt framework, such as Qt Quick,
+    it is possible that such disk-based caching is taken care of automatically,
+    for example QQuickWindow uses a disk-based pipeline cache by default (which
+    comes in addition to any driver-level caching).
+ */
+
+/*!
+    \fn QRhiGraphicsPipeline::Flags QRhiGraphicsPipeline::flags() const
+    \return the currently set flags.
+ */
+
+/*!
+    \fn void QRhiGraphicsPipeline::setFlags(Flags f)
+    Sets the flags \a f.
+ */
+
+/*!
+    \fn QRhiGraphicsPipeline::Topology QRhiGraphicsPipeline::topology() const
+    \return the currently set primitive topology.
+ */
+
+/*!
+    \fn void QRhiGraphicsPipeline::setTopology(Topology t)
+    Sets the primitive topology \a t.
+ */
+
+/*!
+    \fn QRhiGraphicsPipeline::CullMode QRhiGraphicsPipeline::cullMode() const
+    \return the currently set face culling mode.
+ */
+
+/*!
+    \fn void QRhiGraphicsPipeline::setCullMode(CullMode mode)
+    Sets the specified face culling \a mode.
+ */
+
+/*!
+    \fn QRhiGraphicsPipeline::FrontFace QRhiGraphicsPipeline::frontFace() const
+    \return the currently set front face mode.
+ */
+
+/*!
+    \fn void QRhiGraphicsPipeline::setFrontFace(FrontFace f)
+    Sets the front face mode \a f.
+ */
+
+/*!
+    \fn void QRhiGraphicsPipeline::setTargetBlends(std::initializer_list<TargetBlend> list)
+
+    Sets the \a list of render target blend settings. This is a list because
+    when multiple render targets are used (i.e., a QRhiTextureRenderTarget with
+    more than one QRhiColorAttachment), there needs to be a TargetBlend
+    structure per render target (color attachment).
+
+    By default there is one default-constructed TargetBlend set.
+
+    \sa QRhi::MaxColorAttachments
+ */
+
+/*!
+    \fn template<typename InputIterator> void QRhiGraphicsPipeline::setTargetBlends(InputIterator first, InputIterator last)
+    Sets the list of render target blend settings from the iterators \a first and \a last.
+ */
+
+/*!
+    \fn const QRhiGraphicsPipeline::TargetBlend *QRhiGraphicsPipeline::cbeginTargetBlends() const
+    \return a const iterator pointing to the first item in the render target blend setting list.
+ */
+
+/*!
+    \fn const QRhiGraphicsPipeline::TargetBlend *QRhiGraphicsPipeline::cendTargetBlends() const
+    \return a const iterator pointing just after the last item in the render target blend setting list.
+ */
+
+/*!
+    \fn const QRhiGraphicsPipeline::TargetBlend *QRhiGraphicsPipeline::targetBlendAt(qsizetype index) const
+    \return the render target blend setting at the specified \a index.
+ */
+
+/*!
+    \fn qsizetype QRhiGraphicsPipeline::targetBlendCount() const
+    \return the number of render target blend settings.
+ */
+
+/*!
+    \fn bool QRhiGraphicsPipeline::hasDepthTest() const
+    \return true if depth testing is enabled.
  */
 
 /*!
     \fn void QRhiGraphicsPipeline::setDepthTest(bool enable)
 
-    Enables or disables depth testing. Both depth test and the writing out of
-    depth data are disabled by default.
+    Enables or disables depth testing based on \a enable. Both depth test and
+    the writing out of depth data are disabled by default.
 
     \sa setDepthWrite()
  */
 
+/*!
+    \fn bool QRhiGraphicsPipeline::hasDepthWrite() const
+    \return true if depth write is enabled.
+ */
+
 /*!
     \fn void QRhiGraphicsPipeline::setDepthWrite(bool enable)
 
-    Controls the writing out of depth data into the depth buffer. By default
-    this is disabled. Depth write is typically enabled together with the depth
-    test.
+    Controls the writing out of depth data into the depth buffer based on
+    \a enable. By default this is disabled. Depth write is typically enabled
+    together with the depth test.
 
     \note Enabling depth write without having depth testing enabled may not
     lead to the desired result, and should be avoided.
@@ -4551,10 +6489,211 @@ QRhiResource::Type QRhiGraphicsPipeline::resourceType() const
     \sa setDepthTest()
  */
 
+/*!
+    \fn QRhiGraphicsPipeline::CompareOp QRhiGraphicsPipeline::depthOp() const
+    \return the depth comparison function.
+ */
+
+/*!
+    \fn void QRhiGraphicsPipeline::setDepthOp(CompareOp op)
+    Sets the depth comparison function \a op.
+ */
+
+/*!
+    \fn bool QRhiGraphicsPipeline::hasStencilTest() const
+    \return true if stencil testing is enabled.
+ */
+
+/*!
+    \fn void QRhiGraphicsPipeline::setStencilTest(bool enable)
+    Enables or disables stencil tests based on \a enable.
+    By default this is disabled.
+ */
+
+/*!
+    \fn QRhiGraphicsPipeline::StencilOpState QRhiGraphicsPipeline::stencilFront() const
+    \return the current stencil test state for front faces.
+ */
+
+/*!
+    \fn void QRhiGraphicsPipeline::setStencilFront(const StencilOpState &state)
+    Sets the stencil test \a state for front faces.
+ */
+
+/*!
+    \fn QRhiGraphicsPipeline::StencilOpState QRhiGraphicsPipeline::stencilBack() const
+    \return the current stencil test state for back faces.
+ */
+
+/*!
+    \fn void QRhiGraphicsPipeline::setStencilBack(const StencilOpState &state)
+    Sets the stencil test \a state for back faces.
+ */
+
+/*!
+    \fn quint32 QRhiGraphicsPipeline::stencilReadMask() const
+    \return the currrent stencil read mask.
+ */
+
+/*!
+    \fn void QRhiGraphicsPipeline::setStencilReadMask(quint32 mask)
+    Sets the stencil read \a mask. The default value is 0xFF.
+ */
+
+/*!
+    \fn quint32 QRhiGraphicsPipeline::stencilWriteMask() const
+    \return the current stencil write mask.
+ */
+
+/*!
+    \fn void QRhiGraphicsPipeline::setStencilWriteMask(quint32 mask)
+    Sets the stencil write \a mask. The default value is 0xFF.
+ */
+
+/*!
+    \fn int QRhiGraphicsPipeline::sampleCount() const
+    \return the currently set sample count. 1 means no multisample antialiasing.
+ */
+
+/*!
+    \fn void QRhiGraphicsPipeline::setSampleCount(int s)
+
+    Sets the sample count. Typical values for \a s are 1, 4, or 8. The pipeline
+    must always be compatible with the render target, i.e. the sample counts
+    must match.
+
+    \sa QRhi::supportedSampleCounts()
+ */
+
+/*!
+    \fn float QRhiGraphicsPipeline::lineWidth() const
+    \return the currently set line width. The default is 1.0f.
+ */
+
+/*!
+    \fn void QRhiGraphicsPipeline::setLineWidth(float width)
+
+    Sets the line \a width. If the QRhi::WideLines feature is reported as
+    unsupported at runtime, values other than 1.0f are ignored.
+ */
+
+/*!
+    \fn int QRhiGraphicsPipeline::depthBias() const
+    \return the currently set depth bias.
+ */
+
+/*!
+    \fn void QRhiGraphicsPipeline::setDepthBias(int bias)
+    Sets the depth \a bias. The default value is 0.
+ */
+
+/*!
+    \fn float QRhiGraphicsPipeline::slopeScaledDepthBias() const
+    \return the currently set slope scaled depth bias.
+ */
+
+/*!
+    \fn void QRhiGraphicsPipeline::setSlopeScaledDepthBias(float bias)
+    Sets the slope scaled depth \a bias. The default value is 0.
+ */
+
+/*!
+    \fn void QRhiGraphicsPipeline::setShaderStages(std::initializer_list<QRhiShaderStage> list)
+    Sets the \a list of shader stages.
+ */
+
+/*!
+    \fn template<typename InputIterator> void QRhiGraphicsPipeline::setShaderStages(InputIterator first, InputIterator last)
+    Sets the list of shader stages from the iterators \a first and \a last.
+ */
+
+/*!
+    \fn const QRhiShaderStage *QRhiGraphicsPipeline::cbeginShaderStages() const
+    \return a const iterator pointing to the first item in the shader stage list.
+ */
+
+/*!
+    \fn const QRhiShaderStage *QRhiGraphicsPipeline::cendShaderStages() const
+    \return a const iterator pointing just after the last item in the shader stage list.
+ */
+
+/*!
+    \fn const QRhiShaderStage *QRhiGraphicsPipeline::shaderStageAt(qsizetype index) const
+    \return the shader stage at the specified \a index.
+ */
+
+/*!
+    \fn qsizetype QRhiGraphicsPipeline::shaderStageCount() const
+    \return the number of shader stages in this pipeline.
+ */
+
+/*!
+    \fn QRhiVertexInputLayout QRhiGraphicsPipeline::vertexInputLayout() const
+    \return the currently set vertex input layout specification.
+ */
+
+/*!
+    \fn void QRhiGraphicsPipeline::setVertexInputLayout(const QRhiVertexInputLayout &layout)
+    Specifies the vertex input \a layout.
+ */
+
+/*!
+    \fn QRhiShaderResourceBindings *QRhiGraphicsPipeline::shaderResourceBindings() const
+    \return the currently associated QRhiShaderResourceBindings object.
+ */
+
+/*!
+    \fn void QRhiGraphicsPipeline::setShaderResourceBindings(QRhiShaderResourceBindings *srb)
+
+    Associates with \a srb describing the resource binding layout and the
+    resources (QRhiBuffer, QRhiTexture) themselves. The latter is optional,
+    because only the layout matters during pipeline creation. Therefore, the \a
+    srb passed in here can leave the actual buffer or texture objects
+    unspecified (\nullptr) as long as there is another,
+    \l{QRhiShaderResourceBindings::isLayoutCompatible()}{layout-compatible}
+    QRhiShaderResourceBindings bound via
+    \l{QRhiCommandBuffer::setShaderResources()}{setShaderResources()} before
+    recording the draw calls.
+ */
+
+/*!
+    \fn QRhiRenderPassDescriptor *QRhiGraphicsPipeline::renderPassDescriptor() const
+    \return the currently set QRhiRenderPassDescriptor.
+ */
+
+/*!
+    \fn void QRhiGraphicsPipeline::setRenderPassDescriptor(QRhiRenderPassDescriptor *desc)
+    Associates with the specified QRhiRenderPassDescriptor \a desc.
+ */
+
+/*!
+    \fn int QRhiGraphicsPipeline::patchControlPointCount() const
+    \return the currently set patch control point count.
+ */
+
+/*!
+    \fn void QRhiGraphicsPipeline::setPatchControlPointCount(int count)
+
+    Sets the number of patch control points to \a count. The default value is
+    3. This is used only when the topology is set to \l Patches.
+ */
+
+/*!
+    \fn QRhiGraphicsPipeline::PolygonMode QRhiGraphicsPipeline::polygonMode() const
+    \return the polygon mode.
+ */
+
+/*!
+    \fn void QRhiGraphicsPipeline::setPolygonMode(PolygonMode mode)
+    Sets the polygon \a mode. The default is Fill.
+
+    \sa QRhi::NonFillPolygonMode
+ */
+
 /*!
     \class QRhiSwapChain
-    \internal
     \inmodule QtGui
+    \since 6.6
     \brief Swapchain resource.
 
     A swapchain enables presenting rendering results to a surface. A swapchain
@@ -4564,7 +6703,7 @@ QRhiResource::Type QRhiGraphicsPipeline::resourceType() const
     Below is a typical pattern for creating and managing a swapchain and some
     associated resources in order to render onto a QWindow:
 
-    \badcode
+    \code
       void init()
       {
           sc = rhi->newSwapChain();
@@ -4610,7 +6749,7 @@ QRhiResource::Type QRhiGraphicsPipeline::resourceType() const
     Releasing the swapchain must happen while the QWindow and the underlying
     native window is fully up and running. Building on the previous example:
 
-    \badcode
+    \code
         void releaseSwapChain()
         {
             if (hasSwapChain) {
@@ -4642,7 +6781,7 @@ QRhiResource::Type QRhiGraphicsPipeline::resourceType() const
     events. QExposeEvent is a loosely specified event that is sent whenever a
     window gets mapped, obscured, and resized, depending on the platform.
 
-    \badcode
+    \code
         void Window::exposeEvent(QExposeEvent *)
         {
             // initialize and start rendering when the window becomes usable for graphics purposes
@@ -4688,6 +6827,9 @@ QRhiResource::Type QRhiGraphicsPipeline::resourceType() const
     command at the end of a frame. For OpenGL, it is necessary to request the
     appropriate sample count also via QSurfaceFormat, by calling
     QSurfaceFormat::setDefaultFormat() before initializing the QRhi.
+
+    \note This is a RHI API with limited compatibility guarantees, see \l QRhi
+    for details.
  */
 
 /*!
@@ -4746,6 +6888,14 @@ QRhiResource::Type QRhiGraphicsPipeline::resourceType() const
     \enum QRhiSwapChain::Format
     Describes the swapchain format. The default format is SDR.
 
+    This enum is used with
+    \l{QRhiSwapChain::isFormatSupported()}{isFormatSupported()} to check
+    upfront if creating the swapchain with the given format is supported by the
+    platform and the window's associated screen, and with
+    \l{QRhiSwapChain::setFormat()}{setFormat()}
+    to set the requested format in the swapchain before calling
+    \l{QRhiSwapChain::createOrResize()}{createOrResize()} for the first time.
+
     \value SDR 8-bit RGBA or BGRA, depending on the backend and platform. With
     OpenGL ES in particular, it could happen that the platform provides less
     than 8 bits (e.g. due to EGL and the QSurfaceFormat choosing a 565 or 444
@@ -4806,7 +6956,7 @@ QRhiResource::Type QRhiSwapChain::resourceType() const
   */
 
 /*!
-    \fn QSize QRhiSwapChain::surfacePixelSize()
+    \fn virtual QSize QRhiSwapChain::surfacePixelSize() = 0
 
     \return The size of the window's associated surface or layer.
 
@@ -4814,13 +6964,13 @@ QRhiResource::Type QRhiSwapChain::resourceType() const
     QWindow::devicePixelRatio()}. With some graphics APIs and windowing system
     interfaces (for example, Vulkan) there is a theoretical possibility for a
     surface to assume a size different from the associated window. To support
-    these cases, rendering logic must always base size-derived calculations
+    these cases, \b{rendering logic must always base size-derived calculations
     (such as, viewports) on the size reported from QRhiSwapChain, and never on
-    the size queried from QWindow.
+    the size queried from QWindow}.
 
-    \note Can also be called before createOrResize(), if at least window() is
-    already set) This in combination with currentPixelSize() allows to detect
-    when a swapchain needs to be resized. However, watch out for the fact that
+    \note \b{Can also be called before createOrResize(), if at least window() is
+    already set. This in combination with currentPixelSize() allows to detect
+    when a swapchain needs to be resized.} However, watch out for the fact that
     the size of the underlying native object (surface, layer, or similar) is
     "live", so whenever this function is called, it returns the latest value
     reported by the underlying implementation, without any atomicity guarantee.
@@ -4841,9 +6991,9 @@ QRhiResource::Type QRhiSwapChain::resourceType() const
   */
 
 /*!
-    \fn bool QRhiSwapChain::isFormatSuported(Format f)
+    \fn virtual bool QRhiSwapChain::isFormatSupported(Format f) = 0
 
-    \return true if the given swapchain format is supported. SDR is always
+    \return true if the given swapchain format \a f is supported. SDR is always
     supported.
 
     \note Can be called independently of createOrResize(), but window() must
@@ -4854,20 +7004,45 @@ QRhiResource::Type QRhiSwapChain::resourceType() const
     time. If the result is true for a HDR format, then creating the swapchain
     with that format is expected to succeed as long as the window is not moved
     to another screen in the meantime.
+
+    The main use of this function is to call it before the first
+    createOrResize() after the window is already set. This allow the QRhi
+    backends to perform platform or windowing system specific queries to
+    determine if the window (and the screen it is on) is capable of true HDR
+    output with the specified format.
+
+    When the format is reported as supported, call setFormat() to set the
+    requested format and call createOrResize(). Be aware of the consequences
+    however: successfully requesting a HDR format will involve having to deal
+    with a different color space, possibly doing white level correction for
+    non-HDR-aware content, adjusting tonemapping methods, adjusting offscreen
+    render target settings, etc.
+
+    \sa setFormat()
  */
 
 /*!
-    \fn QRhiCommandBuffer *QRhiSwapChain::currentFrameCommandBuffer()
+    \fn virtual QRhiCommandBuffer *QRhiSwapChain::currentFrameCommandBuffer() = 0
 
-    \return a command buffer on which rendering commands can be recorded. Only
-    valid within a QRhi::beginFrame() - QRhi::endFrame() block where
-    beginFrame() was called with this swapchain.
+    \return a command buffer on which rendering commands and resource updates
+    can be recorded within a \l{QRhi::beginFrame()}{beginFrame} -
+    \l{QRhi::endFrame()}{endFrame} block, assuming beginFrame() was called with
+    this swapchain.
 
-    \note the value must not be cached and reused between frames
+    \note The returned object is valid also after endFrame(), up until the next
+    beginFrame(), but the returned command buffer should not be used to record
+    any commands then. Rather, it can be used to query data collected during
+    the frame (or previous frames), for example by calling
+    \l{QRhiCommandBuffer::lastCompletedGpuTime()}{lastCompletedGpuTime()}.
+
+    \note The value must not be cached and reused between frames. The caller
+    should not hold on to the returned object once
+    \l{QRhi::beginFrame()}{beginFrame()} is called again. Instead, the command
+    buffer object should be queried again by calling this function.
 */
 
 /*!
-    \fn QRhiRenderTarget *QRhiSwapChain::currentFrameRenderTarget()
+    \fn virtual QRhiRenderTarget *QRhiSwapChain::currentFrameRenderTarget() = 0
 
     \return a render target that can used with beginPass() in order to render
     the swapchain's current backbuffer. Only valid within a
@@ -4907,7 +7082,7 @@ QRhiRenderTarget *QRhiSwapChain::currentFrameRenderTarget(StereoTargetBuffer tar
 }
 
 /*!
-    \fn bool QRhiSwapChain::createOrResize()
+    \fn virtual bool QRhiSwapChain::createOrResize() = 0
 
     Creates the swapchain if not already done and resizes the swapchain buffers
     to match the current size of the targeted surface. Call this whenever the
@@ -4922,10 +7097,112 @@ QRhiRenderTarget *QRhiSwapChain::currentFrameRenderTarget(StereoTargetBuffer tar
     Regardless of the return value, calling destroy() is always safe.
  */
 
+/*!
+    \fn QWindow *QRhiSwapChain::window() const
+    \return the currently set window.
+ */
+
+/*!
+    \fn void QRhiSwapChain::setWindow(QWindow *window)
+    Sets the \a window.
+ */
+
+/*!
+    \fn QRhiSwapChainProxyData QRhiSwapChain::proxyData() const
+    \return the currently set proxy data.
+ */
+
+/*!
+    \fn void QRhiSwapChain::setProxyData(const QRhiSwapChainProxyData &d)
+    Sets the proxy data \a d.
+
+    \sa QRhi::updateSwapChainProxyData()
+ */
+
+/*!
+    \fn QRhiSwapChain::Flags QRhiSwapChain::flags() const
+    \return the currently set flags.
+ */
+
+/*!
+    \fn void QRhiSwapChain::setFlags(Flags f)
+    Sets the flags \a f.
+ */
+
+/*!
+    \fn QRhiSwapChain::Format QRhiSwapChain::format() const
+    \return the currently set format.
+ */
+
+/*!
+    \fn void QRhiSwapChain::setFormat(Format f)
+    Sets the format \a f.
+
+    Avoid setting formats that are reported as unsupported from
+    isFormatSupported(). Note that support for a given format may depend on the
+    screen the swapchain's associated window is opened on. On some platforms,
+    such as Windows and macOS, for HDR output to work it is necessary to have
+    HDR output enabled in the display settings.
+
+    See isFormatSupported(), \l QRhiSwapChainHdrInfo, and \l Format for more
+    information on high dynamic range output.
+ */
+
+/*!
+    \fn QRhiRenderBuffer *QRhiSwapChain::depthStencil() const
+    \return the currently associated renderbuffer for depth-stencil.
+ */
+
+/*!
+    \fn void QRhiSwapChain::setDepthStencil(QRhiRenderBuffer *ds)
+    Sets the renderbuffer \a ds for use as a depth-stencil buffer.
+ */
+
+/*!
+    \fn int QRhiSwapChain::sampleCount() const
+    \return the currently set sample count. 1 means no multisample antialiasing.
+ */
+
+/*!
+    \fn void QRhiSwapChain::setSampleCount(int samples)
+
+    Sets the sample count. Common values for \a samples are 1 (no MSAA), 4 (4x
+    MSAA), or 8 (8x MSAA).
+
+    \sa QRhi::supportedSampleCounts()
+ */
+
+/*!
+    \fn QRhiRenderPassDescriptor *QRhiSwapChain::renderPassDescriptor() const
+    \return the currently associated QRhiRenderPassDescriptor object.
+ */
+
+/*!
+    \fn void QRhiSwapChain::setRenderPassDescriptor(QRhiRenderPassDescriptor *desc)
+    Associates with the QRhiRenderPassDescriptor \a desc.
+ */
+
+/*!
+    \fn virtual QRhiRenderPassDescriptor *QRhiSwapChain::newCompatibleRenderPassDescriptor() = 0;
+
+    \return a new QRhiRenderPassDescriptor that is compatible with this swapchain.
+
+    The returned value is used in two ways: it can be passed to
+    setRenderPassDescriptor() and
+    QRhiGraphicsPipeline::setRenderPassDescriptor(). A render pass descriptor
+    describes the attachments (color, depth/stencil) and the load/store
+    behavior that can be affected by flags(). A QRhiGraphicsPipeline can only
+    be used in combination with a swapchain that has a
+    \l{QRhiRenderPassDescriptor::isCompatible()}{compatible}
+    QRhiRenderPassDescriptor set.
+
+    \sa createOrResize()
+ */
+
 /*!
     \struct QRhiSwapChainHdrInfo
-    \internal
     \inmodule QtGui
+    \since 6.6
 
     \brief Describes the high dynamic range related information of the
     swapchain's associated output.
@@ -4958,9 +7235,75 @@ QRhiRenderTarget *QRhiSwapChain::currentFrameRenderTarget(StereoTargetBuffer tar
     values are always the built-in defaults and \c isHardCodedDefaults is
     always true.
 
+    \note This is a RHI API with limited compatibility guarantees, see \l QRhi
+    for details.
+
     \sa QRhiSwapChain::hdrInfo()
  */
 
+/*!
+    \enum QRhiSwapChainHdrInfo::LimitsType
+
+    \value LuminanceInNits Indicates that the \l limits union has its
+    \c luminanceInNits struct set
+
+    \value ColorComponentValue Indicates that the \l limits union has its
+    \c colorComponentValue struct set
+*/
+
+/*!
+    \variable QRhiSwapChainHdrInfo::isHardCodedDefaults
+
+    Set to true when the data in the QRhiSwapChainHdrInfo consists entirely of
+    the hard-coded default values, for example because there is no way to query
+    the relevant information with a given graphics API or platform. (or because
+    querying it can be achieved only by means, e.g. platform APIs in some other
+    area, that are out of scope for the QRhi layer of the Qt graphics stack to
+    handle)
+
+    \sa QRhiSwapChain::hdrInfo()
+*/
+
+/*!
+    \variable QRhiSwapChainHdrInfo::limitsType
+
+    With Metal on macOS/iOS, there is no luminance values exposed in the
+    platform APIs. Instead, the maximum color component value, that would be
+    1.0 in a non-HDR setup, is provided. This value indicates what kind of
+    information is available in \l limits.
+
+    \sa QRhiSwapChain::hdrInfo()
+*/
+
+/*!
+    \variable QRhiSwapChainHdrInfo::limits
+
+    Contains the actual values queried from the graphics API or the platform.
+    The type of data is indicated by \l limitsType. This is therefore a union.
+    There are currently two options:
+
+    Luminance values in nits:
+
+    \code
+        struct {
+            float minLuminance;
+            float maxLuminance;
+        } luminanceInNits;
+    \endcode
+
+    Whereas for macOS/iOS, the current maximum and potential maximum color
+    component values are provided:
+
+    \code
+        struct {
+            float maxColorComponentValue;
+            float maxPotentialColorComponentValue;
+        } colorComponentValue;
+    \endcode
+
+    \sa QRhiSwapChain::hdrInfo()
+*/
+
 /*!
     \return the HDR information for the associated display.
 
@@ -4999,6 +7342,7 @@ QDebug operator<<(QDebug dbg, const QRhiSwapChainHdrInfo &info)
         break;
     case QRhiSwapChainHdrInfo::ColorComponentValue:
         dbg.nospace() << " maxColorComponentValue=" << info.limits.colorComponentValue.maxColorComponentValue;
+        dbg.nospace() << " maxPotentialColorComponentValue=" << info.limits.colorComponentValue.maxPotentialColorComponentValue;
         break;
     }
     dbg.nospace() << ')';
@@ -5008,8 +7352,8 @@ QDebug operator<<(QDebug dbg, const QRhiSwapChainHdrInfo &info)
 
 /*!
     \class QRhiComputePipeline
-    \internal
     \inmodule QtGui
+    \since 6.6
     \brief Compute pipeline state resource.
 
     \note Setting the shader resource bindings is mandatory. The referenced
@@ -5017,6 +7361,9 @@ QDebug operator<<(QDebug dbg, const QRhiSwapChainHdrInfo &info)
     time create() is called.
 
     \note Setting the shader is mandatory.
+
+    \note This is a RHI API with limited compatibility guarantees, see \l QRhi
+    for details.
  */
 
 /*!
@@ -5045,16 +7392,60 @@ QRhiComputePipeline::QRhiComputePipeline(QRhiImplementation *rhi)
 {
 }
 
+/*!
+    \fn QRhiComputePipeline::Flags QRhiComputePipeline::flags() const
+    \return the currently set flags.
+ */
+
+/*!
+    \fn void QRhiComputePipeline::setFlags(Flags f)
+    Sets the flags \a f.
+ */
+
+/*!
+    \fn QRhiShaderStage QRhiComputePipeline::shaderStage() const
+    \return the currently set shader.
+ */
+
+/*!
+    \fn void QRhiComputePipeline::setShaderStage(const QRhiShaderStage &stage)
+
+    Sets the shader to use. \a stage can only refer to the
+    \l{QRhiShaderStage::Compute}{compute stage}.
+ */
+
+/*!
+    \fn QRhiShaderResourceBindings *QRhiComputePipeline::shaderResourceBindings() const
+    \return the currently associated QRhiShaderResourceBindings object.
+ */
+
+/*!
+    \fn void QRhiComputePipeline::setShaderResourceBindings(QRhiShaderResourceBindings *srb)
+
+    Associates with \a srb describing the resource binding layout and the
+    resources (QRhiBuffer, QRhiTexture) themselves. The latter is optional. As
+    with graphics pipelines, the \a srb passed in here can leave the actual
+    buffer or texture objects unspecified (\nullptr) as long as there is
+    another,
+    \l{QRhiShaderResourceBindings::isLayoutCompatible()}{layout-compatible}
+    QRhiShaderResourceBindings bound via
+    \l{QRhiCommandBuffer::setShaderResources()}{setShaderResources()} before
+    recording the dispatch call.
+ */
+
 /*!
     \class QRhiCommandBuffer
-    \internal
     \inmodule QtGui
+    \since 6.6
     \brief Command buffer resource.
 
     Not creatable by applications at the moment. The only ways to obtain a
     valid QRhiCommandBuffer are to get it from the targeted swapchain via
     QRhiSwapChain::currentFrameCommandBuffer(), or, in case of rendering
     completely offscreen, initializing one via QRhi::beginOffscreenFrame().
+
+    \note This is a RHI API with limited compatibility guarantees, see \l QRhi
+    for details.
  */
 
 /*!
@@ -5420,7 +7811,7 @@ bool QRhiImplementation::sanityCheckShaderResourceBindings(QRhiShaderResourceBin
     const int CHECKED_BINDINGS_COUNT = 64;
     bool bindingSeen[CHECKED_BINDINGS_COUNT] = {};
     for (auto it = srb->cbeginBindings(), end = srb->cendBindings(); it != end; ++it) {
-        const int binding = it->data()->binding;
+        const int binding = shaderResourceBindingData(*it)->binding;
         if (binding >= CHECKED_BINDINGS_COUNT)
             continue;
         if (binding < 0) {
@@ -5428,7 +7819,7 @@ bool QRhiImplementation::sanityCheckShaderResourceBindings(QRhiShaderResourceBin
             bindingsOk = false;
             continue;
         }
-        switch (it->data()->type) {
+        switch (shaderResourceBindingData(*it)->type) {
         case QRhiShaderResourceBinding::UniformBuffer:
             if (!bindingSeen[binding]) {
                 bindingSeen[binding] = true;
@@ -5482,7 +7873,7 @@ bool QRhiImplementation::sanityCheckShaderResourceBindings(QRhiShaderResourceBin
             }
             break;
         default:
-            qWarning("Unknown binding type %d", int(it->data()->type));
+            qWarning("Unknown binding type %d", int(shaderResourceBindingData(*it)->type));
             bindingsOk = false;
             break;
         }
@@ -5522,14 +7913,30 @@ QRhi::~QRhi()
     delete d;
 }
 
+void QRhiImplementation::prepareForCreate(QRhi *rhi, QRhi::Implementation impl, QRhi::Flags flags)
+{
+    q = rhi;
+
+    // Play nice with QSG_INFO since that is still the most commonly used
+    // way to get graphics info printed from Qt Quick apps, and the Quick
+    // scenegraph is our primary user.
+    if (qEnvironmentVariableIsSet("QSG_INFO"))
+        const_cast<QLoggingCategory &>(QRHI_LOG_INFO()).setEnabled(QtDebugMsg, true);
+
+    debugMarkers = flags.testFlag(QRhi::EnableDebugMarkers);
+
+    implType = impl;
+    implThread = QThread::currentThread();
+}
+
 /*!
     \return a new QRhi instance with a backend for the graphics API specified
     by \a impl with the specified \a flags.
 
     \a params must point to an instance of one of the backend-specific
     subclasses of QRhiInitParams, such as, QRhiVulkanInitParams,
-    QRhiMetalInitParams, QRhiD3D11InitParams, QRhiGles2InitParams. See these
-    classes for examples on creating a QRhi.
+    QRhiMetalInitParams, QRhiD3D11InitParams, QRhiD3D12InitParams,
+    QRhiGles2InitParams. See these classes for examples on creating a QRhi.
 
     QRhi by design does not implement any fallback logic: if the specified API
     cannot be initialized, create() will fail, with warnings printed on the
@@ -5543,6 +7950,13 @@ QRhi::~QRhi()
     initialization of the infrastructure and is wasteful if that QRhi instance
     is then thrown immediately away.
 
+    \a importDevice allows using an already existing graphics device, without
+    QRhi creating its own. When not null, this parameter must point to an
+    instance of one of the subclasses of QRhiNativeHandles:
+    QRhiVulkanNativeHandles, QRhiD3D11NativeHandles, QRhiD3D12NativeHandles,
+    QRhiMetalNativeHandles, QRhiGles2NativeHandles. The exact details and
+    semantics depend on the backand and the underlying graphics API.
+
     \sa probe()
  */
 QRhi *QRhi::create(Implementation impl, QRhiInitParams *params, Flags flags, QRhiNativeHandles *importDevice)
@@ -5589,25 +8003,22 @@ QRhi *QRhi::create(Implementation impl, QRhiInitParams *params, Flags flags, QRh
 #else
         qWarning("This platform has no Metal support");
         break;
+#endif
+    case D3D12:
+#ifdef Q_OS_WIN
+        r->d = new QRhiD3D12(static_cast<QRhiD3D12InitParams *>(params),
+                             static_cast<QRhiD3D12NativeHandles *>(importDevice));
+        break;
+#else
+        qWarning("This platform has no Direct3D 12 support");
+        break;
 #endif
     }
 
     if (r->d) {
-        r->d->q = r.get();
-
-        // Play nice with QSG_INFO since that is still the most commonly used
-        // way to get graphics info printed from Qt Quick apps, and the Quick
-        // scenegraph is our primary user.
-        if (qEnvironmentVariableIsSet("QSG_INFO"))
-            const_cast<QLoggingCategory &>(QRHI_LOG_INFO()).setEnabled(QtDebugMsg, true);
-
-        r->d->debugMarkers = flags.testFlag(EnableDebugMarkers);
-
-        if (r->d->create(flags)) {
-            r->d->implType = impl;
-            r->d->implThread = QThread::currentThread();
+        r->d->prepareForCreate(r.get(), impl, flags);
+        if (r->d->create(flags))
             return r.release();
-        }
     }
 
     return nullptr;
@@ -5649,8 +8060,15 @@ bool QRhi::probe(QRhi::Implementation impl, QRhiInitParams *params)
 
 /*!
     \struct QRhiSwapChainProxyData
-    \internal
     \inmodule QtGui
+    \since 6.6
+
+    \brief Opaque data describing native objects needed to set up a swapchain.
+
+    \note This is a RHI API with limited compatibility guarantees, see \l QRhi
+    for details.
+
+    \sa QRhi::updateSwapChainProxyData()
  */
 
 /*!
@@ -5715,6 +8133,8 @@ const char *QRhi::backendName(Implementation impl)
         return "D3D11";
     case QRhi::Metal:
         return "Metal";
+    case QRhi::D3D12:
+        return "D3D12";
     }
 
     Q_UNREACHABLE_RETURN("Unknown");
@@ -5744,9 +8164,8 @@ const char *QRhi::backendName() const
 
 /*!
     \struct QRhiDriverInfo
-    \internal
     \inmodule QtGui
-    \since 6.1
+    \since 6.6
 
     \brief Describes the physical device, adapter, or graphics API
     implementation that is used by an initialized QRhi.
@@ -5758,8 +8177,35 @@ const char *QRhi::backendName() const
     \c{GL_VERSION}. The deviceId is always 0 for OpenGL. vendorId is always 0
     for OpenGL and Metal. deviceType is always UnknownDevice for OpenGL and
     Direct 3D.
+
+    \note This is a RHI API with limited compatibility guarantees, see \l QRhi
+    for details.
  */
 
+/*!
+    \variable QRhiDriverInfo::deviceName
+
+    \sa QRhi::driverInfo()
+*/
+
+/*!
+    \variable QRhiDriverInfo::deviceId
+
+    \sa QRhi::driverInfo()
+*/
+
+/*!
+    \variable QRhiDriverInfo::vendorId
+
+    \sa QRhi::driverInfo()
+*/
+
+/*!
+    \variable QRhiDriverInfo::deviceType
+
+    \sa QRhi::driverInfo(), QRhiDriverInfo::DeviceType
+*/
+
 #ifndef QT_NO_DEBUG_STREAM
 static inline const char *deviceTypeStr(QRhiDriverInfo::DeviceType type)
 {
@@ -5842,40 +8288,10 @@ void QRhi::runCleanup()
     d->cleanupCallbacks.clear();
 }
 
-/*!
-    Registers a \a callback that is called with an elapsed time calculated from
-    GPU timestamps asynchronously after a timestamp becomes available at some
-    point after presenting a frame.
-
-    The callback is called with a float value that is meant to be in
-    milliseconds and represents the elapsed time on the GPU side for a given
-    frame. Care must be exercised with the interpretation of the value, as what
-    it exactly is is not controlled by Qt and depends on the underlying
-    graphics API and its implementation. In particular, comparing the values
-    between different graphics APIs is discouraged and may be meaningless.
-
-    The timing values become available asynchronously, sometimes several frames
-    after the frame has been submitted in endFrame(). There is currently no way
-    to identify the frame. The callback is invoked whenever the timestamp
-    queries complete.
-
-    \note This is only supported when the Timestamp feature is reported as
-    supported from isFeatureSupported(). Otherwise the \a callback is never
-    called.
-
-    The \a callback is always called on the thread the QRhi lives and operates
-    on. While not guaranteed, it is typical that the callback is invoked from
-    within beginFrame().
- */
-void QRhi::addGpuFrameTimeCallback(const GpuFrameTimeCallback &callback)
-{
-    d->addGpuFrameTimeCallback(callback);
-}
-
 /*!
     \class QRhiResourceUpdateBatch
-    \internal
     \inmodule QtGui
+    \since 6.6
     \brief Records upload and copy type of operations.
 
     With QRhi it is no longer possible to perform copy type of operations at
@@ -5891,6 +8307,9 @@ void QRhi::addGpuFrameTimeCallback(const GpuFrameTimeCallback &callback)
 
     To get an available, empty batch from the pool, call
     QRhi::nextResourceUpdateBatch().
+
+    \note This is a RHI API with limited compatibility guarantees, see \l QRhi
+    for details.
  */
 
 /*!
@@ -5934,29 +8353,26 @@ void QRhiResourceUpdateBatch::release()
     that is then merged into another when starting to first render pass later
     on:
 
-    \badcode
-    void init()
-    {
-        ...
-        initialUpdates = rhi->nextResourceUpdateBatch();
-        initialUpdates->uploadStaticBuffer(vbuf, vertexData);
-        initialUpdates->uploadStaticBuffer(ibuf, indexData);
-        ...
-    }
-
-    void render()
-    {
-        ...
-        QRhiResourceUpdateBatch *resUpdates = rhi->nextResourceUpdateBatch();
-        if (initialUpdates) {
-            resUpdates->merge(initialUpdates);
-            initialUpdates->release();
-            initialUpdates = nullptr;
+    \code
+        void init()
+        {
+            initialUpdates = rhi->nextResourceUpdateBatch();
+            initialUpdates->uploadStaticBuffer(vbuf, vertexData);
+            initialUpdates->uploadStaticBuffer(ibuf, indexData);
+            // ...
+        }
+
+        void render()
+        {
+            QRhiResourceUpdateBatch *resUpdates = rhi->nextResourceUpdateBatch();
+            if (initialUpdates) {
+                resUpdates->merge(initialUpdates);
+                initialUpdates->release();
+                initialUpdates = nullptr;
+            }
+            // resUpdates->updateDynamicBuffer(...);
+            cb->beginPass(rt, clearCol, clearDs, resUpdates);
         }
-        resUpdates->updateDynamicBuffer(...);
-        ...
-        cb->beginPass(rt, clearCol, clearDs, resUpdates);
-    }
     \endcode
  */
 void QRhiResourceUpdateBatch::merge(QRhiResourceUpdateBatch *other)
@@ -5998,8 +8414,8 @@ bool QRhiResourceUpdateBatch::hasOptimalCapacity() const
 
     \note QRhi transparently manages double buffering in order to prevent
     stalling the graphics pipeline. The fact that a QRhiBuffer may have
-    multiple native underneath can be safely ignored when using the QRhi and
-    QRhiResourceUpdateBatch.
+    multiple native buffer objects underneath can be safely ignored when using
+    the QRhi and QRhiResourceUpdateBatch.
  */
 void QRhiResourceUpdateBatch::updateDynamicBuffer(QRhiBuffer *buf, quint32 offset, quint32 size, const void *data)
 {
@@ -6054,7 +8470,7 @@ void QRhiResourceUpdateBatch::uploadStaticBuffer(QRhiBuffer *buf, const void *da
 
     A readback is asynchronous. \a result contains a callback that is invoked
     when the operation has completed. The data is provided in
-    QRhiBufferReadbackResult::data. Upon successful completion that QByteArray
+    QRhiReadbackResult::data. Upon successful completion that QByteArray
     will have a size equal to \a size. On failure the QByteArray will be empty.
 
     \note Reading buffers with a usage different than QRhiBuffer::UniformBuffer
@@ -6071,7 +8487,7 @@ void QRhiResourceUpdateBatch::uploadStaticBuffer(QRhiBuffer *buf, const void *da
 
    \sa readBackTexture(), QRhi::isFeatureSupported(), QRhi::resourceLimit()
  */
-void QRhiResourceUpdateBatch::readBackBuffer(QRhiBuffer *buf, quint32 offset, quint32 size, QRhiBufferReadbackResult *result)
+void QRhiResourceUpdateBatch::readBackBuffer(QRhiBuffer *buf, quint32 offset, quint32 size, QRhiReadbackResult *result)
 {
     const int idx = d->activeBufferOpCount++;
     if (idx < d->bufferOps.size())
@@ -6145,10 +8561,10 @@ void QRhiResourceUpdateBatch::copyTexture(QRhiTexture *dst, QRhiTexture *src, co
    application. Therefore, \a result provides not just the data but also a
    callback as operations on the batch are asynchronous by nature:
 
-   \badcode
-      beginFrame(sc);
-      beginPass
-      ...
+   \code
+      rhi->beginFrame(swapchain);
+      cb->beginPass(swapchain->currentFrameRenderTarget(), colorClear, dsClear);
+      // ...
       QRhiReadbackResult *rbResult = new QRhiReadbackResult;
       rbResult->completed = [rbResult] {
           {
@@ -6159,11 +8575,11 @@ void QRhiResourceUpdateBatch::copyTexture(QRhiTexture *dst, QRhiTexture *src, co
           }
           delete rbResult;
       };
-      u = nextResourceUpdateBatch();
+      QRhiResourceUpdateBatch *u = nextResourceUpdateBatch();
       QRhiReadbackDescription rb; // no texture -> uses the current backbuffer of sc
       u->readBackTexture(rb, rbResult);
-      endPass(u);
-      endFrame(sc);
+      cb->endPass(u);
+      rhi->endFrame(swapchain);
    \endcode
 
    \note The texture must be created with QRhiTexture::UsedAsTransferSource.
@@ -6240,8 +8656,25 @@ void QRhiResourceUpdateBatch::generateMips(QRhiTexture *tex)
    \note Can be called outside beginFrame() - endFrame() as well since a batch
    instance just collects data on its own, it does not perform any operations.
 
-   \warning The maximum number of batches is 64. When this limit is reached,
-   the function will return null until a batch is returned to the pool.
+   Due to not being tied to a frame being recorded, the following sequence is
+   valid for example:
+
+   \code
+      rhi->beginFrame(swapchain);
+      QRhiResourceUpdateBatch *u = rhi->nextResourceUpdateBatch();
+      u->uploadStaticBuffer(buf, data);
+      // ... do not commit the batch
+      rhi->endFrame();
+      // u stays valid (assuming buf stays valid as well)
+      rhi->beginFrame(swapchain);
+      swapchain->currentFrameCommandBuffer()->resourceUpdate(u);
+      // ... draw with buf
+      rhi->endFrame();
+   \endcode
+
+   \warning The maximum number of batches per QRhi is 64. When this limit is
+   reached, the function will return null until a batch is returned to the
+   pool.
  */
 QRhiResourceUpdateBatch *QRhi::nextResourceUpdateBatch()
 {
@@ -6254,6 +8687,11 @@ QRhiResourceUpdateBatch *QRhi::nextResourceUpdateBatch()
     // then reused in subsequent frames. This comes at the expense of using
     // more memory, but has proven good results when (CPU) profiling typical
     // Quick/Quick3D apps.
+    //
+    // Prefering memory over performance means that we always pick the first
+    // free batch, and triggering the aggressive deallocating of all backing
+    // memory (see trimOpLists) before returning it.
+    static const bool preferMemoryOverPerformance = qEnvironmentVariableIntValue("QT_RHI_MINIMIZE_POOLS");
 
     auto nextFreeBatch = [this]() -> QRhiResourceUpdateBatch * {
         auto isFree = [this](int i) -> QRhiResourceUpdateBatch * {
@@ -6262,7 +8700,8 @@ QRhiResourceUpdateBatch *QRhi::nextResourceUpdateBatch()
                 d->resUpdPoolMap |= mask;
                 QRhiResourceUpdateBatch *u = d->resUpdPool[i];
                 QRhiResourceUpdateBatchPrivate::get(u)->poolIndex = i;
-                d->lastResUpdIdx = i;
+                if (!preferMemoryOverPerformance)
+                    d->lastResUpdIdx = i;
                 return u;
             }
             return nullptr;
@@ -6291,6 +8730,9 @@ QRhiResourceUpdateBatch *QRhi::nextResourceUpdateBatch()
             qWarning("Resource update batch pool exhausted (max is 64)");
     }
 
+    if (preferMemoryOverPerformance && u)
+        u->d->trimOpLists();
+
     return u;
 }
 
@@ -6341,8 +8783,6 @@ bool QRhiResourceUpdateBatchPrivate::hasOptimalCapacity() const
 
 void QRhiResourceUpdateBatchPrivate::trimOpLists()
 {
-    Q_ASSERT(poolIndex == -1); // must not be in use
-
     // Unlike free(), this is expected to aggressively deallocate all memory
     // used by both the buffer and texture operation lists. (i.e. using
     // squeeze() to only keep the stack prealloc of the QVLAs)
@@ -6361,9 +8801,10 @@ void QRhiResourceUpdateBatchPrivate::trimOpLists()
 }
 
 /*!
-    Sometimes committing resource updates is necessary without starting a
-    render pass. Not often needed, updates should typically be passed to
-    beginPass (or endPass, in case of readbacks) instead.
+    Sometimes committing resource updates is necessary or just more convenient
+    without starting a render pass. Calling this function with \a
+    resourceUpdates is an alternative to passing \a resourceUpdates to a
+    beginPass() call (or endPass(), which would be typical in case of readbacks).
 
     \note Cannot be called inside a pass.
  */
@@ -6411,16 +8852,20 @@ void QRhiCommandBuffer::resourceUpdate(QRhiResourceUpdateBatch *resourceUpdates)
     made on \a rt. Therefore, if \a rt has a QRhiTexture color attachment \c
     texture, and one needs to make the texture a different size, the following
     is then valid:
-    \badcode
-      rt = rhi->newTextureRenderTarget({ { texture } });
+    \code
+      QRhiTextureRenderTarget *rt = rhi->newTextureRenderTarget({ { texture } });
       rt->create();
-      ...
+      // ...
       texture->setPixelSize(new_size);
       texture->create();
-      cb->beginPass(rt, ...); // this is ok, no explicit rt->create() is required before
+      cb->beginPass(rt, colorClear, dsClear); // this is ok, no explicit rt->create() is required before
     \endcode
 
-    \sa endPass()
+    \a flags allow controlling certain advanced functionality. One commonly used
+    flag is \c ExternalContents. This should be specified whenever
+    beginExternal() will be called within the pass started by this function.
+
+    \sa endPass(), BeginPassFlags
  */
 void QRhiCommandBuffer::beginPass(QRhiRenderTarget *rt,
                                   const QColor &colorClearValue,
@@ -6558,7 +9003,7 @@ void QRhiCommandBuffer::setShaderResources(QRhiShaderResourceBindings *srb,
     floats for position (so 5 floats per vertex: x, y, r, g, b). A QRhiGraphicsPipeline for
     this shader can then be created using the input layout:
 
-    \badcode
+    \code
         QRhiVertexInputLayout inputLayout;
         inputLayout.setBindings({
             { 5 * sizeof(float) }
@@ -6571,11 +9016,10 @@ void QRhiCommandBuffer::setShaderResources(QRhiShaderResourceBindings *srb,
 
     Here there is one buffer binding (binding number 0), with two inputs
     referencing it. When recording the pass, once the pipeline is set, the
-    vertex bindings can be specified simply like the following (using C++11
-    initializer syntax), assuming vbuf is the QRhiBuffer with all the
-    interleaved position+color data:
+    vertex bindings can be specified simply like the following, assuming vbuf
+    is the QRhiBuffer with all the interleaved position+color data:
 
-    \badcode
+    \code
         const QRhiCommandBuffer::VertexInput vbufBinding(vbuf, 0);
         cb->setVertexInput(0, 1, &vbufBinding);
     \endcode
@@ -6715,8 +9159,9 @@ void QRhiCommandBuffer::drawIndexed(quint32 indexCount,
 }
 
 /*!
-    Records a named debug group on the command buffer. This is shown in
-    graphics debugging tools such as \l{https://renderdoc.org/}{RenderDoc} and
+    Records a named debug group on the command buffer with the specified \a
+    name. This is shown in graphics debugging tools such as
+    \l{https://renderdoc.org/}{RenderDoc} and
     \l{https://developer.apple.com/xcode/}{XCode}. The end of the grouping is
     indicated by debugMarkEnd().
 
@@ -6774,6 +9219,8 @@ void QRhiCommandBuffer::debugMarkMsg(const QByteArray &msg)
 
     \note Compute is only available when the \l{QRhi::Compute}{Compute} feature
     is reported as supported.
+
+    \a flags is not currently used.
  */
 void QRhiCommandBuffer::beginComputePass(QRhiResourceUpdateBatch *resourceUpdates, BeginPassFlags flags)
 {
@@ -6857,9 +9304,9 @@ const QRhiNativeHandles *QRhiCommandBuffer::nativeHandles()
     called when the pass recording was started with specifying
     QRhiCommandBuffer::ExternalContent.
 
-    With Vulkan or Metal one can query the native command buffer or encoder
-    objects via nativeHandles() and enqueue commands to them. With OpenGL or
-    Direct3D 11 the (device) context can be retrieved from
+    With Vulkan, Metal, or Direct3D 12 one can query the native command buffer
+    or encoder objects via nativeHandles() and enqueue commands to them. With
+    OpenGL or Direct3D 11 the (device) context can be retrieved from
     QRhi::nativeHandles(). However, this must never be done without ensuring
     the QRhiCommandBuffer's state stays up-to-date. Hence the requirement for
     wrapping any externally added command recording between beginExternal() and
@@ -6906,6 +9353,41 @@ void QRhiCommandBuffer::endExternal()
     m_rhi->endExternal(this);
 }
 
+/*!
+    \return the last available timestamp, in seconds. The value indicates the
+    elapsed time on the GPU during the last completed frame.
+
+    Care must be exercised with the interpretation of the value, as its
+    precision and granularity is often not controlled by Qt, and depends on the
+    underlying graphics API and its implementation. In particular, comparing
+    the values between different graphics APIs and hardware is discouraged and
+    may be meaningless.
+
+    The timing values may become available asynchronously. The returned value
+    may therefore be 0 or the last known value referring to some previous
+    frame. The value my also become 0 again under certain conditions, such as
+    when resizing the window. It can be expected that the most up-to-date
+    available value is retrieved in beginFrame() and becomes queriable via this
+    function once beginFrame() returns.
+
+    \note Do not assume that the value refers to the previous
+    (\c{currently_recorded - 1}) frame. It may refer to \c{currently_recorded -
+    2} or \c{currently_recorded - 3} as well. The exact behavior may depend on
+    the graphics API and its implementation.
+
+    \note The result is always 0 when the QRhi::Timestamps feature is not
+    reported as supported, or when QRhi::EnableTimestamps was not passed to
+    QRhi::create(). There are exceptions to the latter, because with some
+    graphics APIs timings are available without having to perform extra
+    operations, but portable applications should always consciously opt-in to
+    timestamp collection when they know it is needed, and call this function
+    accordingly.
+ */
+double QRhiCommandBuffer::lastCompletedGpuTime()
+{
+    return m_rhi->lastCompletedGpuTime(this);
+}
+
 /*!
     \return the value (typically an offset) \a v aligned to the uniform buffer
     alignment given by by ubufAlignment().
@@ -6919,7 +9401,7 @@ int QRhi::ubufAligned(int v) const
 /*!
     \return the number of mip levels for a given \a size.
  */
-int QRhi::mipLevelsForSize(const QSize &size) const
+int QRhi::mipLevelsForSize(const QSize &size)
 {
     return qFloor(std::log2(qMax(size.width(), size.height()))) + 1;
 }
@@ -6928,7 +9410,7 @@ int QRhi::mipLevelsForSize(const QSize &size) const
     \return the texture image size for a given \a mipLevel, calculated based on
     the level 0 size given in \a baseLevelSize.
  */
-QSize QRhi::sizeForMipLevel(int mipLevel, const QSize &baseLevelSize) const
+QSize QRhi::sizeForMipLevel(int mipLevel, const QSize &baseLevelSize)
 {
     const int w = qMax(1, baseLevelSize.width() >> mipLevel);
     const int h = qMax(1, baseLevelSize.height() >> mipLevel);
@@ -7042,7 +9524,8 @@ int QRhi::resourceLimit(ResourceLimit limit) const
     for the device, context, and similar concepts used by the backend.
 
     Cast to QRhiVulkanNativeHandles, QRhiD3D11NativeHandles,
-    QRhiGles2NativeHandles, QRhiMetalNativeHandles as appropriate.
+    QRhiD3D12NativeHandles, QRhiGles2NativeHandles, or QRhiMetalNativeHandles
+    as appropriate.
 
     \note No ownership is transferred, neither for the returned pointer nor for
     any native objects.
@@ -7143,7 +9626,7 @@ bool QRhi::isDeviceLost() const
 }
 
 /*!
-    \return a binary \a data blob with data collected from the
+    \return a binary data blob with data collected from the
     QRhiGraphicsPipeline and QRhiComputePipeline successfully created during
     the lifetime of this QRhi.
 
@@ -7242,12 +9725,70 @@ void QRhi::setPipelineCacheData(const QByteArray &data)
 
 /*!
     \struct QRhiStats
-    \internal
     \inmodule QtGui
+    \since 6.6
 
     \brief Statistics provided from the underlying memory allocator.
+
+    \note This is a RHI API with limited compatibility guarantees, see \l QRhi
+    for details.
  */
 
+/*!
+    \variable QRhiStats::totalPipelineCreationTime
+
+    The total time in milliseconds spent in graphics and compute pipeline
+    creation, which usually involves shader compilation or cache lookups, and
+    potentially expensive processing.
+
+    \note The value should not be compared between different backends since the
+    concept of "pipelines" and what exactly happens under the hood during, for
+    instance, a call to QRhiGraphicsPipeline::create(), differ greatly between
+    graphics APIs and their implementations.
+
+    \sa QRhi::statistics()
+*/
+
+/*!
+    \variable QRhiStats::blockCount
+
+    Statistic reported from the Vulkan or D3D12 memory allocator.
+
+    \sa QRhi::statistics()
+*/
+
+/*!
+    \variable QRhiStats::allocCount
+
+    Statistic reported from the Vulkan or D3D12 memory allocator.
+
+    \sa QRhi::statistics()
+*/
+
+/*!
+    \variable QRhiStats::usedBytes
+
+    Statistic reported from the Vulkan or D3D12 memory allocator.
+
+    \sa QRhi::statistics()
+*/
+
+/*!
+    \variable QRhiStats::unusedBytes
+
+    Statistic reported from the Vulkan or D3D12 memory allocator.
+
+    \sa QRhi::statistics()
+*/
+
+/*!
+    \variable QRhiStats::totalUsageBytes
+
+    Valid only with D3D12 currently. Matches IDXGIAdapter3::QueryVideoMemoryInfo().
+
+    \sa QRhi::statistics()
+*/
+
 #ifndef QT_NO_DEBUG_STREAM
 QDebug operator<<(QDebug dbg, const QRhiStats &info)
 {
@@ -7258,6 +9799,7 @@ QDebug operator<<(QDebug dbg, const QRhiStats &info)
                   << " allocCount=" << info.allocCount
                   << " usedBytes=" << info.usedBytes
                   << " unusedBytes=" << info.unusedBytes
+                  << " totalUsageBytes=" << info.totalUsageBytes
                   << ')';
     return dbg;
 }
@@ -7276,6 +9818,15 @@ QDebug operator<<(QDebug dbg, const QRhiStats &info)
     from the underlying memory allocator library. This gives an insight into
     the memory requirements of the active buffers and textures.
 
+    The same is true for Direct 3D 12. In addition to the memory allocator
+    library's statistics, here the result also includes a \c totalUsageBytes
+    field which reports the total size including additional resources that are
+    not under the memory allocator library's control (swapchain buffers,
+    descriptor heaps, etc.), as reported by DXGI.
+
+    The values correspond to all types of memory used, combined. (i.e. video +
+    system in case of a discreet GPU)
+
     Additional data, such as the total time in milliseconds spent in graphics
     and compute pipeline creation (which usually involves shader compilation or
     cache lookups, and potentially expensive processing) is available with most
@@ -7497,6 +10048,14 @@ QRhiTexture *QRhi::newTextureArray(QRhiTexture::Format format,
     minification filter \a minFilter, mipmapping mode \a mipmapMode, and the
     addressing (wrap) modes \a addressU, \a addressV, and \a addressW.
 
+    \note Setting \a mipmapMode to a value other than \c None implies that
+    images for all relevant mip levels will be provided either via
+    \l{QRhiResourceUpdateBatch::uploadTexture()}{texture uploads} or by calling
+    \l{QRhiResourceUpdateBatch::generateMips()}{generateMips()} on the texture
+    that is used with this sampler. Attempting to use the sampler with a
+    texture that has no data for all relevant mip levels will lead to rendering
+    errors, with the exact behavior dependent on the underlying graphics API.
+
     \sa QRhiResource::destroy()
  */
 QRhiSampler *QRhi::newSampler(QRhiSampler::Filter magFilter,
@@ -7700,26 +10259,29 @@ int QRhi::currentFrameSlot() const
     beginOffscreenFrame, endOffscreenFrame, beginFrame, ...) is possible too
     but it does reduce parallelism so it should be done only infrequently.
 
-    Offscreen frames do not let the CPU - potentially - generate another frame
+    Offscreen frames do not let the CPU potentially generate another frame
     while the GPU is still processing the previous one. This has the side
     effect that if readbacks are scheduled, the results are guaranteed to be
     available once endOffscreenFrame() returns. That is not the case with
-    frames targeting a swapchain.
+    frames targeting a swapchain: there the GPU is potentially better utilized,
+    but working with readback operations needs more care from the application
+    because endFrame(), unlike endOffscreenFrame(), does not guarantee that the
+    results from the readback are available at that point.
 
     The skeleton of rendering a frame without a swapchain and then reading the
     frame contents back could look like the following:
 
-    \badcode
-          QRhiReadbackResult rbResult;
-          QRhiCommandBuffer *cb;
-          beginOffscreenFrame(&cb);
-          beginPass
-          ...
-          u = nextResourceUpdateBatch();
-          u->readBackTexture(rb, &rbResult);
-          endPass(u);
-          endOffscreenFrame();
-          // image data available in rbResult
+    \code
+        QRhiReadbackResult rbResult;
+        QRhiCommandBuffer *cb;
+        rhi->beginOffscreenFrame(&cb);
+        cb->beginPass(rt, colorClear, dsClear);
+        // ...
+        u = nextResourceUpdateBatch();
+        u->readBackTexture(rb, &rbResult);
+        cb->endPass(u);
+        rhi->endOffscreenFrame();
+        // image data available in rbResult
    \endcode
 
    \sa endOffscreenFrame(), beginFrame()
@@ -7737,7 +10299,9 @@ QRhi::FrameOpResult QRhi::beginOffscreenFrame(QRhiCommandBuffer **cb, BeginFrame
 }
 
 /*!
-    Ends and waits for the offscreen frame.
+    Ends, submits, and waits for the offscreen frame.
+
+    \a flags is not currently used.
 
     \sa beginOffscreenFrame()
  */
@@ -7778,6 +10342,9 @@ QRhi::FrameOpResult QRhi::finish()
     With some backend this list of supported values is fixed in advance, while
     with some others the (physical) device properties indicate what is
     supported at run time.
+
+    \sa QRhiRenderBuffer::setSampleCount(), QRhiTexture::setSampleCount(),
+    QRhiGraphicsPipeline::setSampleCount(), QRhiSwapChain::setSampleCount()
  */
 QList<int> QRhi::supportedSampleCounts() const
 {
diff --git a/src/gui/rhi/qrhi.h b/src/gui/rhi/qrhi.h
new file mode 100644
index 00000000..eb300f58
--- /dev/null
+++ b/src/gui/rhi/qrhi.h
@@ -0,0 +1,1975 @@
+// Copyright (C) 2023 The Qt Company Ltd.
+// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
+
+#ifndef QRHI_H
+#define QRHI_H
+
+//
+//  W A R N I N G
+//  -------------
+//
+// This file is part of the RHI API, with limited compatibility guarantees.
+// Usage of this API may make your code source and binary incompatible with
+// future versions of Qt.
+//
+
+#include <QtGui/qtguiglobal.h>
+#include <QtCore/qsize.h>
+#include <QtCore/qlist.h>
+#include <QtCore/qvarlengtharray.h>
+#include <QtCore/qthread.h>
+#include <QtGui/qmatrix4x4.h>
+#include <QtGui/qcolor.h>
+#include <QtGui/qimage.h>
+#include <functional>
+#include <array>
+
+#include <rhi/qshader.h>
+
+QT_BEGIN_NAMESPACE
+
+class QWindow;
+class QRhi;
+class QRhiImplementation;
+class QRhiBuffer;
+class QRhiRenderBuffer;
+class QRhiTexture;
+class QRhiSampler;
+class QRhiCommandBuffer;
+class QRhiResourceUpdateBatch;
+class QRhiResourceUpdateBatchPrivate;
+class QRhiSwapChain;
+
+class Q_GUI_EXPORT QRhiDepthStencilClearValue
+{
+public:
+    QRhiDepthStencilClearValue() = default;
+    QRhiDepthStencilClearValue(float d, quint32 s);
+
+    float depthClearValue() const { return m_d; }
+    void setDepthClearValue(float d) { m_d = d; }
+
+    quint32 stencilClearValue() const { return m_s; }
+    void setStencilClearValue(quint32 s) { m_s = s; }
+
+private:
+    float m_d = 1.0f;
+    quint32 m_s = 0;
+
+    friend bool operator==(const QRhiDepthStencilClearValue &a, const QRhiDepthStencilClearValue &b) noexcept
+    {
+        return a.m_d == b.m_d && a.m_s == b.m_s;
+    }
+
+    friend bool operator!=(const QRhiDepthStencilClearValue &a, const QRhiDepthStencilClearValue &b) noexcept
+    {
+        return !(a == b);
+    }
+
+    friend size_t qHash(const QRhiDepthStencilClearValue &v, size_t seed = 0) noexcept
+    {
+        QtPrivate::QHashCombine hash;
+        seed = hash(seed, v.m_d);
+        seed = hash(seed, v.m_s);
+        return seed;
+    }
+};
+
+Q_DECLARE_TYPEINFO(QRhiDepthStencilClearValue, Q_RELOCATABLE_TYPE);
+
+#ifndef QT_NO_DEBUG_STREAM
+Q_GUI_EXPORT QDebug operator<<(QDebug, const QRhiDepthStencilClearValue &);
+#endif
+
+class Q_GUI_EXPORT QRhiViewport
+{
+public:
+    QRhiViewport() = default;
+    QRhiViewport(float x, float y, float w, float h, float minDepth = 0.0f, float maxDepth = 1.0f);
+
+    std::array<float, 4> viewport() const { return m_rect; }
+    void setViewport(float x, float y, float w, float h) {
+        m_rect[0] = x; m_rect[1] = y; m_rect[2] = w; m_rect[3] = h;
+    }
+
+    float minDepth() const { return m_minDepth; }
+    void setMinDepth(float minDepth) { m_minDepth = minDepth; }
+
+    float maxDepth() const { return m_maxDepth; }
+    void setMaxDepth(float maxDepth) { m_maxDepth = maxDepth; }
+
+private:
+    std::array<float, 4> m_rect { { 0.0f, 0.0f, 0.0f, 0.0f } };
+    float m_minDepth = 0.0f;
+    float m_maxDepth = 1.0f;
+
+    friend bool operator==(const QRhiViewport &a, const QRhiViewport &b) noexcept
+    {
+        return a.m_rect == b.m_rect
+                && a.m_minDepth == b.m_minDepth
+                && a.m_maxDepth == b.m_maxDepth;
+    }
+
+    friend bool operator!=(const QRhiViewport &a, const QRhiViewport &b) noexcept
+    {
+        return !(a == b);
+    }
+
+    friend size_t qHash(const QRhiViewport &v, size_t seed = 0) noexcept
+    {
+        QtPrivate::QHashCombine hash;
+        seed = hash(seed, v.m_rect[0]);
+        seed = hash(seed, v.m_rect[1]);
+        seed = hash(seed, v.m_rect[2]);
+        seed = hash(seed, v.m_rect[3]);
+        seed = hash(seed, v.m_minDepth);
+        seed = hash(seed, v.m_maxDepth);
+        return seed;
+    }
+};
+
+Q_DECLARE_TYPEINFO(QRhiViewport, Q_RELOCATABLE_TYPE);
+
+#ifndef QT_NO_DEBUG_STREAM
+Q_GUI_EXPORT QDebug operator<<(QDebug, const QRhiViewport &);
+#endif
+
+class Q_GUI_EXPORT QRhiScissor
+{
+public:
+    QRhiScissor() = default;
+    QRhiScissor(int x, int y, int w, int h);
+
+    std::array<int, 4> scissor() const { return m_rect; }
+    void setScissor(int x, int y, int w, int h) {
+        m_rect[0] = x; m_rect[1] = y; m_rect[2] = w; m_rect[3] = h;
+    }
+
+private:
+    std::array<int, 4> m_rect { { 0, 0, 0, 0 } };
+
+    friend bool operator==(const QRhiScissor &a, const QRhiScissor &b) noexcept
+    {
+        return a.m_rect == b.m_rect;
+    }
+
+    friend bool operator!=(const QRhiScissor &a, const QRhiScissor &b) noexcept
+    {
+        return !(a == b);
+    }
+
+    friend size_t qHash(const QRhiScissor &v, size_t seed = 0) noexcept
+    {
+        QtPrivate::QHashCombine hash;
+        seed = hash(seed, v.m_rect[0]);
+        seed = hash(seed, v.m_rect[1]);
+        seed = hash(seed, v.m_rect[2]);
+        seed = hash(seed, v.m_rect[3]);
+        return seed;
+    }
+};
+
+Q_DECLARE_TYPEINFO(QRhiScissor, Q_RELOCATABLE_TYPE);
+
+#ifndef QT_NO_DEBUG_STREAM
+Q_GUI_EXPORT QDebug operator<<(QDebug, const QRhiScissor &);
+#endif
+
+class Q_GUI_EXPORT QRhiVertexInputBinding
+{
+public:
+    enum Classification {
+        PerVertex,
+        PerInstance
+    };
+
+    QRhiVertexInputBinding() = default;
+    QRhiVertexInputBinding(quint32 stride, Classification cls = PerVertex, quint32 stepRate = 1);
+
+    quint32 stride() const { return m_stride; }
+    void setStride(quint32 s) { m_stride = s; }
+
+    Classification classification() const { return m_classification; }
+    void setClassification(Classification c) { m_classification = c; }
+
+    quint32 instanceStepRate() const { return m_instanceStepRate; }
+    void setInstanceStepRate(quint32 rate) { m_instanceStepRate = rate; }
+
+private:
+    quint32 m_stride = 0;
+    Classification m_classification = PerVertex;
+    quint32 m_instanceStepRate = 1;
+
+    friend bool operator==(const QRhiVertexInputBinding &a, const QRhiVertexInputBinding &b) noexcept
+    {
+        return a.m_stride == b.m_stride
+                && a.m_classification == b.m_classification
+                && a.m_instanceStepRate == b.m_instanceStepRate;
+    }
+
+    friend bool operator!=(const QRhiVertexInputBinding &a, const QRhiVertexInputBinding &b) noexcept
+    {
+        return !(a == b);
+    }
+
+    friend size_t qHash(const QRhiVertexInputBinding &v, size_t seed = 0) noexcept
+    {
+        QtPrivate::QHashCombine hash;
+        seed = hash(seed, v.m_stride);
+        seed = hash(seed, v.m_classification);
+        seed = hash(seed, v.m_instanceStepRate);
+        return seed;
+    }
+};
+
+Q_DECLARE_TYPEINFO(QRhiVertexInputBinding, Q_RELOCATABLE_TYPE);
+
+#ifndef QT_NO_DEBUG_STREAM
+Q_GUI_EXPORT QDebug operator<<(QDebug, const QRhiVertexInputBinding &);
+#endif
+
+class Q_GUI_EXPORT QRhiVertexInputAttribute
+{
+public:
+    enum Format {
+        Float4,
+        Float3,
+        Float2,
+        Float,
+        UNormByte4,
+        UNormByte2,
+        UNormByte,
+        UInt4,
+        UInt3,
+        UInt2,
+        UInt,
+        SInt4,
+        SInt3,
+        SInt2,
+        SInt,
+        Half4,
+        Half3,
+        Half2,
+        Half
+    };
+
+    QRhiVertexInputAttribute() = default;
+    QRhiVertexInputAttribute(int binding, int location, Format format, quint32 offset, int matrixSlice = -1);
+
+    int binding() const { return m_binding; }
+    void setBinding(int b) { m_binding = b; }
+
+    int location() const { return m_location; }
+    void setLocation(int loc) { m_location = loc; }
+
+    Format format() const { return m_format; }
+    void setFormat(Format f) { m_format = f; }
+
+    quint32 offset() const { return m_offset; }
+    void setOffset(quint32 ofs) { m_offset = ofs; }
+
+    int matrixSlice() const { return m_matrixSlice; }
+    void setMatrixSlice(int slice) { m_matrixSlice = slice; }
+
+private:
+    int m_binding = 0;
+    int m_location = 0;
+    Format m_format = Float4;
+    quint32 m_offset = 0;
+    int m_matrixSlice = -1;
+
+    friend bool operator==(const QRhiVertexInputAttribute &a, const QRhiVertexInputAttribute &b) noexcept
+    {
+        return a.m_binding == b.m_binding
+                && a.m_location == b.m_location
+                && a.m_format == b.m_format
+                && a.m_offset == b.m_offset;
+        // matrixSlice excluded intentionally
+    }
+
+    friend bool operator!=(const QRhiVertexInputAttribute &a, const QRhiVertexInputAttribute &b) noexcept
+    {
+        return !(a == b);
+    }
+
+    friend size_t qHash(const QRhiVertexInputAttribute &v, size_t seed = 0) noexcept
+    {
+        QtPrivate::QHashCombine hash;
+        seed = hash(seed, v.m_binding);
+        seed = hash(seed, v.m_location);
+        seed = hash(seed, v.m_format);
+        seed = hash(seed, v.m_offset);
+        return seed;
+    }
+};
+
+Q_DECLARE_TYPEINFO(QRhiVertexInputAttribute, Q_RELOCATABLE_TYPE);
+
+#ifndef QT_NO_DEBUG_STREAM
+Q_GUI_EXPORT QDebug operator<<(QDebug, const QRhiVertexInputAttribute &);
+#endif
+
+class Q_GUI_EXPORT QRhiVertexInputLayout
+{
+public:
+    QRhiVertexInputLayout() = default;
+
+    void setBindings(std::initializer_list<QRhiVertexInputBinding> list) { m_bindings = list; }
+    template<typename InputIterator>
+    void setBindings(InputIterator first, InputIterator last)
+    {
+        m_bindings.clear();
+        std::copy(first, last, std::back_inserter(m_bindings));
+    }
+    const QRhiVertexInputBinding *cbeginBindings() const { return m_bindings.cbegin(); }
+    const QRhiVertexInputBinding *cendBindings() const { return m_bindings.cend(); }
+    const QRhiVertexInputBinding *bindingAt(qsizetype index) const { return &m_bindings.at(index); }
+    qsizetype bindingCount() const { return m_bindings.count(); }
+
+    void setAttributes(std::initializer_list<QRhiVertexInputAttribute> list) { m_attributes = list; }
+    template<typename InputIterator>
+    void setAttributes(InputIterator first, InputIterator last)
+    {
+        m_attributes.clear();
+        std::copy(first, last, std::back_inserter(m_attributes));
+    }
+    const QRhiVertexInputAttribute *cbeginAttributes() const { return m_attributes.cbegin(); }
+    const QRhiVertexInputAttribute *cendAttributes() const { return m_attributes.cend(); }
+    const QRhiVertexInputAttribute *attributeAt(qsizetype index) const { return &m_attributes.at(index); }
+    qsizetype attributeCount() const { return m_attributes.count(); }
+
+private:
+    QVarLengthArray<QRhiVertexInputBinding, 8> m_bindings;
+    QVarLengthArray<QRhiVertexInputAttribute, 8> m_attributes;
+
+    friend bool operator==(const QRhiVertexInputLayout &a, const QRhiVertexInputLayout &b) noexcept
+    {
+        return a.m_bindings == b.m_bindings && a.m_attributes == b.m_attributes;
+    }
+
+    friend bool operator!=(const QRhiVertexInputLayout &a, const QRhiVertexInputLayout &b) noexcept
+    {
+        return !(a == b);
+    }
+
+    friend size_t qHash(const QRhiVertexInputLayout &v, size_t seed = 0) noexcept
+    {
+        QtPrivate::QHashCombine hash;
+        seed = hash(seed, v.m_bindings);
+        seed = hash(seed, v.m_attributes);
+        return seed;
+    }
+
+    friend Q_GUI_EXPORT QDebug operator<<(QDebug, const QRhiVertexInputLayout &);
+};
+
+#ifndef QT_NO_DEBUG_STREAM
+Q_GUI_EXPORT QDebug operator<<(QDebug, const QRhiVertexInputLayout &);
+#endif
+
+class Q_GUI_EXPORT QRhiShaderStage
+{
+public:
+    enum Type {
+        Vertex,
+        TessellationControl,
+        TessellationEvaluation,
+        Geometry,
+        Fragment,
+        Compute
+    };
+
+    QRhiShaderStage() = default;
+    QRhiShaderStage(Type type, const QShader &shader,
+                    QShader::Variant v = QShader::StandardShader);
+
+    Type type() const { return m_type; }
+    void setType(Type t) { m_type = t; }
+
+    QShader shader() const { return m_shader; }
+    void setShader(const QShader &s) { m_shader = s; }
+
+    QShader::Variant shaderVariant() const { return m_shaderVariant; }
+    void setShaderVariant(QShader::Variant v) { m_shaderVariant = v; }
+
+private:
+    Type m_type = Vertex;
+    QShader m_shader;
+    QShader::Variant m_shaderVariant = QShader::StandardShader;
+
+    friend bool operator==(const QRhiShaderStage &a, const QRhiShaderStage &b) noexcept
+    {
+        return a.m_type == b.m_type
+                && a.m_shader == b.m_shader
+                && a.m_shaderVariant == b.m_shaderVariant;
+    }
+
+    friend bool operator!=(const QRhiShaderStage &a, const QRhiShaderStage &b) noexcept
+    {
+        return !(a == b);
+    }
+
+    friend size_t qHash(const QRhiShaderStage &v, size_t seed = 0) noexcept
+    {
+        QtPrivate::QHashCombine hash;
+        seed = hash(seed, v.m_type);
+        seed = hash(seed, v.m_shader);
+        seed = hash(seed, v.m_shaderVariant);
+        return seed;
+    }
+};
+
+Q_DECLARE_TYPEINFO(QRhiShaderStage, Q_RELOCATABLE_TYPE);
+
+#ifndef QT_NO_DEBUG_STREAM
+Q_GUI_EXPORT QDebug operator<<(QDebug, const QRhiShaderStage &);
+#endif
+
+using QRhiGraphicsShaderStage = QRhiShaderStage;
+
+class Q_GUI_EXPORT QRhiShaderResourceBinding
+{
+public:
+    enum Type {
+        UniformBuffer,
+        SampledTexture,
+        Texture,
+        Sampler,
+        ImageLoad,
+        ImageStore,
+        ImageLoadStore,
+        BufferLoad,
+        BufferStore,
+        BufferLoadStore
+    };
+
+    enum StageFlag {
+        VertexStage = 1 << 0,
+        TessellationControlStage = 1 << 1,
+        TessellationEvaluationStage = 1 << 2,
+        GeometryStage = 1 << 3,
+        FragmentStage = 1 << 4,
+        ComputeStage = 1 << 5
+    };
+    Q_DECLARE_FLAGS(StageFlags, StageFlag)
+
+    QRhiShaderResourceBinding() = default;
+
+    bool isLayoutCompatible(const QRhiShaderResourceBinding &other) const;
+
+    static QRhiShaderResourceBinding uniformBuffer(int binding, StageFlags stage, QRhiBuffer *buf);
+    static QRhiShaderResourceBinding uniformBuffer(int binding, StageFlags stage, QRhiBuffer *buf, quint32 offset, quint32 size);
+    static QRhiShaderResourceBinding uniformBufferWithDynamicOffset(int binding, StageFlags stage, QRhiBuffer *buf, quint32 size);
+
+    static QRhiShaderResourceBinding sampledTexture(int binding, StageFlags stage, QRhiTexture *tex, QRhiSampler *sampler);
+
+    struct TextureAndSampler {
+        QRhiTexture *tex;
+        QRhiSampler *sampler;
+    };
+    static QRhiShaderResourceBinding sampledTextures(int binding, StageFlags stage, int count, const TextureAndSampler *texSamplers);
+
+    static QRhiShaderResourceBinding texture(int binding, StageFlags stage, QRhiTexture *tex);
+    static QRhiShaderResourceBinding textures(int binding, StageFlags stage, int count, QRhiTexture **tex);
+    static QRhiShaderResourceBinding sampler(int binding, StageFlags stage, QRhiSampler *sampler);
+
+    static QRhiShaderResourceBinding imageLoad(int binding, StageFlags stage, QRhiTexture *tex, int level);
+    static QRhiShaderResourceBinding imageStore(int binding, StageFlags stage, QRhiTexture *tex, int level);
+    static QRhiShaderResourceBinding imageLoadStore(int binding, StageFlags stage, QRhiTexture *tex, int level);
+
+    static QRhiShaderResourceBinding bufferLoad(int binding, StageFlags stage, QRhiBuffer *buf);
+    static QRhiShaderResourceBinding bufferLoad(int binding, StageFlags stage, QRhiBuffer *buf, quint32 offset, quint32 size);
+    static QRhiShaderResourceBinding bufferStore(int binding, StageFlags stage, QRhiBuffer *buf);
+    static QRhiShaderResourceBinding bufferStore(int binding, StageFlags stage, QRhiBuffer *buf, quint32 offset, quint32 size);
+    static QRhiShaderResourceBinding bufferLoadStore(int binding, StageFlags stage, QRhiBuffer *buf);
+    static QRhiShaderResourceBinding bufferLoadStore(int binding, StageFlags stage, QRhiBuffer *buf, quint32 offset, quint32 size);
+
+    struct Data
+    {
+        int binding;
+        QRhiShaderResourceBinding::StageFlags stage;
+        QRhiShaderResourceBinding::Type type;
+        struct UniformBufferData {
+            QRhiBuffer *buf;
+            quint32 offset;
+            quint32 maybeSize;
+            bool hasDynamicOffset;
+        };
+        static const int MAX_TEX_SAMPLER_ARRAY_SIZE = 16;
+        struct TextureAndOrSamplerData {
+            int count;
+            TextureAndSampler texSamplers[MAX_TEX_SAMPLER_ARRAY_SIZE];
+        };
+        struct StorageImageData {
+            QRhiTexture *tex;
+            int level;
+        };
+        struct StorageBufferData {
+            QRhiBuffer *buf;
+            quint32 offset;
+            quint32 maybeSize;
+        };
+        union {
+            UniformBufferData ubuf;
+            TextureAndOrSamplerData stex;
+            StorageImageData simage;
+            StorageBufferData sbuf;
+        } u;
+
+        int arraySize() const
+        {
+            return type == QRhiShaderResourceBinding::SampledTexture || type == QRhiShaderResourceBinding::Texture
+                    ? u.stex.count
+                    : 1;
+        }
+
+        template<typename Output>
+        Output serialize(Output dst) const
+        {
+            // must write out exactly LAYOUT_DESC_ENTRIES_PER_BINDING elements here
+            *dst++ = quint32(binding);
+            *dst++ = quint32(stage);
+            *dst++ = quint32(type);
+            *dst++ = quint32(arraySize());
+            return dst;
+        }
+    };
+
+    static const int LAYOUT_DESC_ENTRIES_PER_BINDING = 4;
+
+    template<typename Output>
+    static void serializeLayoutDescription(const QRhiShaderResourceBinding *first,
+                                           const QRhiShaderResourceBinding *last,
+                                           Output dst)
+    {
+        while (first != last) {
+            dst = first->d.serialize(dst);
+            ++first;
+        }
+    }
+
+private:
+    Data d;
+    friend class QRhiImplementation;
+};
+
+Q_DECLARE_OPERATORS_FOR_FLAGS(QRhiShaderResourceBinding::StageFlags)
+
+Q_DECLARE_TYPEINFO(QRhiShaderResourceBinding, Q_PRIMITIVE_TYPE);
+
+Q_GUI_EXPORT bool operator==(const QRhiShaderResourceBinding &a, const QRhiShaderResourceBinding &b) noexcept;
+Q_GUI_EXPORT bool operator!=(const QRhiShaderResourceBinding &a, const QRhiShaderResourceBinding &b) noexcept;
+Q_GUI_EXPORT size_t qHash(const QRhiShaderResourceBinding &b, size_t seed = 0) noexcept;
+#ifndef QT_NO_DEBUG_STREAM
+Q_GUI_EXPORT QDebug operator<<(QDebug, const QRhiShaderResourceBinding &);
+#endif
+
+class Q_GUI_EXPORT QRhiColorAttachment
+{
+public:
+    QRhiColorAttachment() = default;
+    QRhiColorAttachment(QRhiTexture *texture);
+    QRhiColorAttachment(QRhiRenderBuffer *renderBuffer);
+
+    QRhiTexture *texture() const { return m_texture; }
+    void setTexture(QRhiTexture *tex) { m_texture = tex; }
+
+    QRhiRenderBuffer *renderBuffer() const { return m_renderBuffer; }
+    void setRenderBuffer(QRhiRenderBuffer *rb) { m_renderBuffer = rb; }
+
+    int layer() const { return m_layer; }
+    void setLayer(int layer) { m_layer = layer; }
+
+    int level() const { return m_level; }
+    void setLevel(int level) { m_level = level; }
+
+    QRhiTexture *resolveTexture() const { return m_resolveTexture; }
+    void setResolveTexture(QRhiTexture *tex) { m_resolveTexture = tex; }
+
+    int resolveLayer() const { return m_resolveLayer; }
+    void setResolveLayer(int layer) { m_resolveLayer = layer; }
+
+    int resolveLevel() const { return m_resolveLevel; }
+    void setResolveLevel(int level) { m_resolveLevel = level; }
+
+private:
+    QRhiTexture *m_texture = nullptr;
+    QRhiRenderBuffer *m_renderBuffer = nullptr;
+    int m_layer = 0;
+    int m_level = 0;
+    QRhiTexture *m_resolveTexture = nullptr;
+    int m_resolveLayer = 0;
+    int m_resolveLevel = 0;
+};
+
+Q_DECLARE_TYPEINFO(QRhiColorAttachment, Q_RELOCATABLE_TYPE);
+
+class Q_GUI_EXPORT QRhiTextureRenderTargetDescription
+{
+public:
+    QRhiTextureRenderTargetDescription() = default;
+    QRhiTextureRenderTargetDescription(const QRhiColorAttachment &colorAttachment);
+    QRhiTextureRenderTargetDescription(const QRhiColorAttachment &colorAttachment, QRhiRenderBuffer *depthStencilBuffer);
+    QRhiTextureRenderTargetDescription(const QRhiColorAttachment &colorAttachment, QRhiTexture *depthTexture);
+
+    void setColorAttachments(std::initializer_list<QRhiColorAttachment> list) { m_colorAttachments = list; }
+    template<typename InputIterator>
+    void setColorAttachments(InputIterator first, InputIterator last)
+    {
+        m_colorAttachments.clear();
+        std::copy(first, last, std::back_inserter(m_colorAttachments));
+    }
+    const QRhiColorAttachment *cbeginColorAttachments() const { return m_colorAttachments.cbegin(); }
+    const QRhiColorAttachment *cendColorAttachments() const { return m_colorAttachments.cend(); }
+    const QRhiColorAttachment *colorAttachmentAt(qsizetype index) const { return &m_colorAttachments.at(index); }
+    qsizetype colorAttachmentCount() const { return m_colorAttachments.count(); }
+
+    QRhiRenderBuffer *depthStencilBuffer() const { return m_depthStencilBuffer; }
+    void setDepthStencilBuffer(QRhiRenderBuffer *renderBuffer) { m_depthStencilBuffer = renderBuffer; }
+
+    QRhiTexture *depthTexture() const { return m_depthTexture; }
+    void setDepthTexture(QRhiTexture *texture) { m_depthTexture = texture; }
+
+private:
+    QVarLengthArray<QRhiColorAttachment, 8> m_colorAttachments;
+    QRhiRenderBuffer *m_depthStencilBuffer = nullptr;
+    QRhiTexture *m_depthTexture = nullptr;
+};
+
+class Q_GUI_EXPORT QRhiTextureSubresourceUploadDescription
+{
+public:
+    QRhiTextureSubresourceUploadDescription() = default;
+    explicit QRhiTextureSubresourceUploadDescription(const QImage &image);
+    QRhiTextureSubresourceUploadDescription(const void *data, quint32 size);
+    explicit QRhiTextureSubresourceUploadDescription(const QByteArray &data);
+
+    QImage image() const { return m_image; }
+    void setImage(const QImage &image) { m_image = image; }
+
+    QByteArray data() const { return m_data; }
+    void setData(const QByteArray &data) { m_data = data; }
+
+    quint32 dataStride() const { return m_dataStride; }
+    void setDataStride(quint32 stride) { m_dataStride = stride; }
+
+    QPoint destinationTopLeft() const { return m_destinationTopLeft; }
+    void setDestinationTopLeft(const QPoint &p) { m_destinationTopLeft = p; }
+
+    QSize sourceSize() const { return m_sourceSize; }
+    void setSourceSize(const QSize &size) { m_sourceSize = size; }
+
+    QPoint sourceTopLeft() const { return m_sourceTopLeft; }
+    void setSourceTopLeft(const QPoint &p) { m_sourceTopLeft = p; }
+
+private:
+    QImage m_image;
+    QByteArray m_data;
+    quint32 m_dataStride = 0;
+    QPoint m_destinationTopLeft;
+    QSize m_sourceSize;
+    QPoint m_sourceTopLeft;
+};
+
+Q_DECLARE_TYPEINFO(QRhiTextureSubresourceUploadDescription, Q_RELOCATABLE_TYPE);
+
+class Q_GUI_EXPORT QRhiTextureUploadEntry
+{
+public:
+    QRhiTextureUploadEntry() = default;
+    QRhiTextureUploadEntry(int layer, int level, const QRhiTextureSubresourceUploadDescription &desc);
+
+    int layer() const { return m_layer; }
+    void setLayer(int layer) { m_layer = layer; }
+
+    int level() const { return m_level; }
+    void setLevel(int level) { m_level = level; }
+
+    QRhiTextureSubresourceUploadDescription description() const { return m_desc; }
+    void setDescription(const QRhiTextureSubresourceUploadDescription &desc) { m_desc = desc; }
+
+private:
+    int m_layer = 0;
+    int m_level = 0;
+    QRhiTextureSubresourceUploadDescription m_desc;
+};
+
+Q_DECLARE_TYPEINFO(QRhiTextureUploadEntry, Q_RELOCATABLE_TYPE);
+
+class Q_GUI_EXPORT QRhiTextureUploadDescription
+{
+public:
+    QRhiTextureUploadDescription() = default;
+    QRhiTextureUploadDescription(const QRhiTextureUploadEntry &entry);
+    QRhiTextureUploadDescription(std::initializer_list<QRhiTextureUploadEntry> list);
+
+    void setEntries(std::initializer_list<QRhiTextureUploadEntry> list) { m_entries = list; }
+    template<typename InputIterator>
+    void setEntries(InputIterator first, InputIterator last)
+    {
+        m_entries.clear();
+        std::copy(first, last, std::back_inserter(m_entries));
+    }
+    const QRhiTextureUploadEntry *cbeginEntries() const { return m_entries.cbegin(); }
+    const QRhiTextureUploadEntry *cendEntries() const { return m_entries.cend(); }
+    const QRhiTextureUploadEntry *entryAt(qsizetype index) const { return &m_entries.at(index); }
+    qsizetype entryCount() const { return m_entries.count(); }
+
+private:
+    QVarLengthArray<QRhiTextureUploadEntry, 16> m_entries;
+};
+
+class Q_GUI_EXPORT QRhiTextureCopyDescription
+{
+public:
+    QRhiTextureCopyDescription() = default;
+
+    QSize pixelSize() const { return m_pixelSize; }
+    void setPixelSize(const QSize &sz) { m_pixelSize = sz; }
+
+    int sourceLayer() const { return m_sourceLayer; }
+    void setSourceLayer(int layer) { m_sourceLayer = layer; }
+
+    int sourceLevel() const { return m_sourceLevel; }
+    void setSourceLevel(int level) { m_sourceLevel = level; }
+
+    QPoint sourceTopLeft() const { return m_sourceTopLeft; }
+    void setSourceTopLeft(const QPoint &p) { m_sourceTopLeft = p; }
+
+    int destinationLayer() const { return m_destinationLayer; }
+    void setDestinationLayer(int layer) { m_destinationLayer = layer; }
+
+    int destinationLevel() const { return m_destinationLevel; }
+    void setDestinationLevel(int level) { m_destinationLevel = level; }
+
+    QPoint destinationTopLeft() const { return m_destinationTopLeft; }
+    void setDestinationTopLeft(const QPoint &p) { m_destinationTopLeft = p; }
+
+private:
+    QSize m_pixelSize;
+    int m_sourceLayer = 0;
+    int m_sourceLevel = 0;
+    QPoint m_sourceTopLeft;
+    int m_destinationLayer = 0;
+    int m_destinationLevel = 0;
+    QPoint m_destinationTopLeft;
+};
+
+Q_DECLARE_TYPEINFO(QRhiTextureCopyDescription, Q_RELOCATABLE_TYPE);
+
+class Q_GUI_EXPORT QRhiReadbackDescription
+{
+public:
+    QRhiReadbackDescription() = default;
+    QRhiReadbackDescription(QRhiTexture *texture);
+
+    QRhiTexture *texture() const { return m_texture; }
+    void setTexture(QRhiTexture *tex) { m_texture = tex; }
+
+    int layer() const { return m_layer; }
+    void setLayer(int layer) { m_layer = layer; }
+
+    int level() const { return m_level; }
+    void setLevel(int level) { m_level = level; }
+
+private:
+    QRhiTexture *m_texture = nullptr;
+    int m_layer = 0;
+    int m_level = 0;
+};
+
+Q_DECLARE_TYPEINFO(QRhiReadbackDescription, Q_RELOCATABLE_TYPE);
+
+struct Q_GUI_EXPORT QRhiNativeHandles
+{
+};
+
+class Q_GUI_EXPORT QRhiResource
+{
+public:
+    enum Type {
+        Buffer,
+        Texture,
+        Sampler,
+        RenderBuffer,
+        RenderPassDescriptor,
+        SwapChainRenderTarget,
+        TextureRenderTarget,
+        ShaderResourceBindings,
+        GraphicsPipeline,
+        SwapChain,
+        ComputePipeline,
+        CommandBuffer
+    };
+
+    virtual ~QRhiResource();
+
+    virtual Type resourceType() const = 0;
+
+    virtual void destroy() = 0;
+
+    void deleteLater();
+
+    QByteArray name() const;
+    void setName(const QByteArray &name);
+
+    quint64 globalResourceId() const;
+
+    QRhi *rhi() const;
+
+protected:
+    QRhiResource(QRhiImplementation *rhi);
+    Q_DISABLE_COPY(QRhiResource)
+    friend class QRhiImplementation;
+    QRhiImplementation *m_rhi = nullptr;
+    quint64 m_id;
+    QByteArray m_objectName;
+};
+
+class Q_GUI_EXPORT QRhiBuffer : public QRhiResource
+{
+public:
+    enum Type {
+        Immutable,
+        Static,
+        Dynamic
+    };
+
+    enum UsageFlag {
+        VertexBuffer = 1 << 0,
+        IndexBuffer = 1 << 1,
+        UniformBuffer = 1 << 2,
+        StorageBuffer = 1 << 3
+    };
+    Q_DECLARE_FLAGS(UsageFlags, UsageFlag)
+
+    struct NativeBuffer {
+        const void *objects[3];
+        int slotCount;
+    };
+
+    QRhiResource::Type resourceType() const override;
+
+    Type type() const { return m_type; }
+    void setType(Type t) { m_type = t; }
+
+    UsageFlags usage() const { return m_usage; }
+    void setUsage(UsageFlags u) { m_usage = u; }
+
+    quint32 size() const { return m_size; }
+    void setSize(quint32 sz) { m_size = sz; }
+
+    virtual bool create() = 0;
+
+    virtual NativeBuffer nativeBuffer();
+
+    virtual char *beginFullDynamicBufferUpdateForCurrentFrame();
+    virtual void endFullDynamicBufferUpdateForCurrentFrame();
+
+protected:
+    QRhiBuffer(QRhiImplementation *rhi, Type type_, UsageFlags usage_, quint32 size_);
+    Type m_type;
+    UsageFlags m_usage;
+    quint32 m_size;
+};
+
+Q_DECLARE_OPERATORS_FOR_FLAGS(QRhiBuffer::UsageFlags)
+
+class Q_GUI_EXPORT QRhiTexture : public QRhiResource
+{
+public:
+    enum Flag {
+        RenderTarget = 1 << 0,
+        CubeMap = 1 << 2,
+        MipMapped = 1 << 3,
+        sRGB = 1 << 4,
+        UsedAsTransferSource = 1 << 5,
+        UsedWithGenerateMips = 1 << 6,
+        UsedWithLoadStore = 1 << 7,
+        UsedAsCompressedAtlas = 1 << 8,
+        ExternalOES = 1 << 9,
+        ThreeDimensional = 1 << 10,
+        TextureRectangleGL = 1 << 11,
+        TextureArray = 1 << 12,
+        OneDimensional = 1 << 13
+    };
+    Q_DECLARE_FLAGS(Flags, Flag)
+
+    enum Format {
+        UnknownFormat,
+
+        RGBA8,
+        BGRA8,
+        R8,
+        RG8,
+        R16,
+        RG16,
+        RED_OR_ALPHA8,
+
+        RGBA16F,
+        RGBA32F,
+        R16F,
+        R32F,
+
+        RGB10A2,
+
+        D16,
+        D24,
+        D24S8,
+        D32F,
+
+        BC1,
+        BC2,
+        BC3,
+        BC4,
+        BC5,
+        BC6H,
+        BC7,
+
+        ETC2_RGB8,
+        ETC2_RGB8A1,
+        ETC2_RGBA8,
+
+        ASTC_4x4,
+        ASTC_5x4,
+        ASTC_5x5,
+        ASTC_6x5,
+        ASTC_6x6,
+        ASTC_8x5,
+        ASTC_8x6,
+        ASTC_8x8,
+        ASTC_10x5,
+        ASTC_10x6,
+        ASTC_10x8,
+        ASTC_10x10,
+        ASTC_12x10,
+        ASTC_12x12
+    };
+
+    struct NativeTexture {
+        quint64 object;
+        int layout; // or state
+    };
+
+    QRhiResource::Type resourceType() const override;
+
+    Format format() const { return m_format; }
+    void setFormat(Format fmt) { m_format = fmt; }
+
+    QSize pixelSize() const { return m_pixelSize; }
+    void setPixelSize(const QSize &sz) { m_pixelSize = sz; }
+
+    int depth() const { return m_depth; }
+    void setDepth(int depth) { m_depth = depth; }
+
+    int arraySize() const { return m_arraySize; }
+    void setArraySize(int arraySize) { m_arraySize = arraySize; }
+
+    int arrayRangeStart() const { return m_arrayRangeStart; }
+    int arrayRangeLength() const { return m_arrayRangeLength; }
+    void setArrayRange(int startIndex, int count)
+    {
+        m_arrayRangeStart = startIndex;
+        m_arrayRangeLength = count;
+    }
+
+    Flags flags() const { return m_flags; }
+    void setFlags(Flags f) { m_flags = f; }
+
+    int sampleCount() const { return m_sampleCount; }
+    void setSampleCount(int s) { m_sampleCount = s; }
+
+    virtual bool create() = 0;
+    virtual NativeTexture nativeTexture();
+    virtual bool createFrom(NativeTexture src);
+    virtual void setNativeLayout(int layout);
+
+protected:
+    QRhiTexture(QRhiImplementation *rhi, Format format_, const QSize &pixelSize_, int depth_,
+                int arraySize_, int sampleCount_, Flags flags_);
+    Format m_format;
+    QSize m_pixelSize;
+    int m_depth;
+    int m_arraySize;
+    int m_sampleCount;
+    Flags m_flags;
+    int m_arrayRangeStart = -1;
+    int m_arrayRangeLength = -1;
+};
+
+Q_DECLARE_OPERATORS_FOR_FLAGS(QRhiTexture::Flags)
+
+class Q_GUI_EXPORT QRhiSampler : public QRhiResource
+{
+public:
+    enum Filter {
+        None,
+        Nearest,
+        Linear
+    };
+
+    enum AddressMode {
+        Repeat,
+        ClampToEdge,
+        Mirror,
+    };
+
+    enum CompareOp {
+        Never,
+        Less,
+        Equal,
+        LessOrEqual,
+        Greater,
+        NotEqual,
+        GreaterOrEqual,
+        Always
+    };
+
+    QRhiResource::Type resourceType() const override;
+
+    Filter magFilter() const { return m_magFilter; }
+    void setMagFilter(Filter f) { m_magFilter = f; }
+
+    Filter minFilter() const { return m_minFilter; }
+    void setMinFilter(Filter f) { m_minFilter = f; }
+
+    Filter mipmapMode() const { return m_mipmapMode; }
+    void setMipmapMode(Filter f) { m_mipmapMode = f; }
+
+    AddressMode addressU() const { return m_addressU; }
+    void setAddressU(AddressMode mode) { m_addressU = mode; }
+
+    AddressMode addressV() const { return m_addressV; }
+    void setAddressV(AddressMode mode) { m_addressV = mode; }
+
+    AddressMode addressW() const { return m_addressW; }
+    void setAddressW(AddressMode mode) { m_addressW = mode; }
+
+    CompareOp textureCompareOp() const { return m_compareOp; }
+    void setTextureCompareOp(CompareOp op) { m_compareOp = op; }
+
+    virtual bool create() = 0;
+
+protected:
+    QRhiSampler(QRhiImplementation *rhi,
+                Filter magFilter_, Filter minFilter_, Filter mipmapMode_,
+                AddressMode u_, AddressMode v_, AddressMode w_);
+    Filter m_magFilter;
+    Filter m_minFilter;
+    Filter m_mipmapMode;
+    AddressMode m_addressU;
+    AddressMode m_addressV;
+    AddressMode m_addressW;
+    CompareOp m_compareOp;
+};
+
+class Q_GUI_EXPORT QRhiRenderBuffer : public QRhiResource
+{
+public:
+    enum Type {
+        DepthStencil,
+        Color
+    };
+
+    enum Flag {
+        UsedWithSwapChainOnly = 1 << 0
+    };
+    Q_DECLARE_FLAGS(Flags, Flag)
+
+    struct NativeRenderBuffer {
+        quint64 object;
+    };
+
+    QRhiResource::Type resourceType() const override;
+
+    Type type() const { return m_type; }
+    void setType(Type t) { m_type = t; }
+
+    QSize pixelSize() const { return m_pixelSize; }
+    void setPixelSize(const QSize &sz) { m_pixelSize = sz; }
+
+    int sampleCount() const { return m_sampleCount; }
+    void setSampleCount(int s) { m_sampleCount = s; }
+
+    Flags flags() const { return m_flags; }
+    void setFlags(Flags f) { m_flags = f; }
+
+    virtual bool create() = 0;
+    virtual bool createFrom(NativeRenderBuffer src);
+
+    virtual QRhiTexture::Format backingFormat() const = 0;
+
+protected:
+    QRhiRenderBuffer(QRhiImplementation *rhi, Type type_, const QSize &pixelSize_,
+                     int sampleCount_, Flags flags_, QRhiTexture::Format backingFormatHint_);
+    Type m_type;
+    QSize m_pixelSize;
+    int m_sampleCount;
+    Flags m_flags;
+    QRhiTexture::Format m_backingFormatHint;
+};
+
+Q_DECLARE_OPERATORS_FOR_FLAGS(QRhiRenderBuffer::Flags)
+
+class Q_GUI_EXPORT QRhiRenderPassDescriptor : public QRhiResource
+{
+public:
+    QRhiResource::Type resourceType() const override;
+
+    virtual bool isCompatible(const QRhiRenderPassDescriptor *other) const = 0;
+    virtual const QRhiNativeHandles *nativeHandles();
+
+    virtual QRhiRenderPassDescriptor *newCompatibleRenderPassDescriptor() const = 0;
+
+    virtual QVector<quint32> serializedFormat() const = 0;
+
+protected:
+    QRhiRenderPassDescriptor(QRhiImplementation *rhi);
+};
+
+class Q_GUI_EXPORT QRhiRenderTarget : public QRhiResource
+{
+public:
+    virtual QSize pixelSize() const = 0;
+    virtual float devicePixelRatio() const = 0;
+    virtual int sampleCount() const = 0;
+
+    QRhiRenderPassDescriptor *renderPassDescriptor() const { return m_renderPassDesc; }
+    void setRenderPassDescriptor(QRhiRenderPassDescriptor *desc) { m_renderPassDesc = desc; }
+
+protected:
+    QRhiRenderTarget(QRhiImplementation *rhi);
+    QRhiRenderPassDescriptor *m_renderPassDesc = nullptr;
+};
+
+class Q_GUI_EXPORT QRhiSwapChainRenderTarget : public QRhiRenderTarget
+{
+public:
+    QRhiResource::Type resourceType() const override;
+    QRhiSwapChain *swapChain() const { return m_swapchain; }
+
+protected:
+    QRhiSwapChainRenderTarget(QRhiImplementation *rhi, QRhiSwapChain *swapchain_);
+    QRhiSwapChain *m_swapchain;
+};
+
+class Q_GUI_EXPORT QRhiTextureRenderTarget : public QRhiRenderTarget
+{
+public:
+    enum Flag {
+        PreserveColorContents = 1 << 0,
+        PreserveDepthStencilContents = 1 << 1
+    };
+    Q_DECLARE_FLAGS(Flags, Flag)
+
+    QRhiResource::Type resourceType() const override;
+
+    QRhiTextureRenderTargetDescription description() const { return m_desc; }
+    void setDescription(const QRhiTextureRenderTargetDescription &desc) { m_desc = desc; }
+
+    Flags flags() const { return m_flags; }
+    void setFlags(Flags f) { m_flags = f; }
+
+    virtual QRhiRenderPassDescriptor *newCompatibleRenderPassDescriptor() = 0;
+
+    virtual bool create() = 0;
+
+protected:
+    QRhiTextureRenderTarget(QRhiImplementation *rhi, const QRhiTextureRenderTargetDescription &desc_, Flags flags_);
+    QRhiTextureRenderTargetDescription m_desc;
+    Flags m_flags;
+};
+
+Q_DECLARE_OPERATORS_FOR_FLAGS(QRhiTextureRenderTarget::Flags)
+
+class Q_GUI_EXPORT QRhiShaderResourceBindings : public QRhiResource
+{
+public:
+    QRhiResource::Type resourceType() const override;
+
+    void setBindings(std::initializer_list<QRhiShaderResourceBinding> list) { m_bindings = list; }
+    template<typename InputIterator>
+    void setBindings(InputIterator first, InputIterator last)
+    {
+        m_bindings.clear();
+        std::copy(first, last, std::back_inserter(m_bindings));
+    }
+    const QRhiShaderResourceBinding *cbeginBindings() const { return m_bindings.cbegin(); }
+    const QRhiShaderResourceBinding *cendBindings() const { return m_bindings.cend(); }
+    const QRhiShaderResourceBinding *bindingAt(qsizetype index) const { return &m_bindings.at(index); }
+    qsizetype bindingCount() const { return m_bindings.count(); }
+
+    bool isLayoutCompatible(const QRhiShaderResourceBindings *other) const;
+
+    QVector<quint32> serializedLayoutDescription() const { return m_layoutDesc; }
+
+    virtual bool create() = 0;
+
+    enum UpdateFlag {
+        BindingsAreSorted = 0x01
+    };
+    Q_DECLARE_FLAGS(UpdateFlags, UpdateFlag)
+
+    virtual void updateResources(UpdateFlags flags = {}) = 0;
+
+protected:
+    static const int BINDING_PREALLOC = 12;
+    QRhiShaderResourceBindings(QRhiImplementation *rhi);
+    QVarLengthArray<QRhiShaderResourceBinding, BINDING_PREALLOC> m_bindings;
+    size_t m_layoutDescHash = 0;
+    // Intentionally not using QVLA for m_layoutDesc: clients like Qt Quick are much
+    // better served with an implicitly shared container here, because they will likely
+    // throw this directly into structs serving as cache keys.
+    QVector<quint32> m_layoutDesc;
+    friend class QRhiImplementation;
+#ifndef QT_NO_DEBUG_STREAM
+    friend Q_GUI_EXPORT QDebug operator<<(QDebug, const QRhiShaderResourceBindings &);
+#endif
+};
+
+Q_DECLARE_OPERATORS_FOR_FLAGS(QRhiShaderResourceBindings::UpdateFlags)
+
+#ifndef QT_NO_DEBUG_STREAM
+Q_GUI_EXPORT QDebug operator<<(QDebug, const QRhiShaderResourceBindings &);
+#endif
+
+class Q_GUI_EXPORT QRhiGraphicsPipeline : public QRhiResource
+{
+public:
+    enum Flag {
+        UsesBlendConstants = 1 << 0,
+        UsesStencilRef = 1 << 1,
+        UsesScissor = 1 << 2,
+        CompileShadersWithDebugInfo = 1 << 3
+    };
+    Q_DECLARE_FLAGS(Flags, Flag)
+
+    enum Topology {
+        Triangles,
+        TriangleStrip,
+        TriangleFan,
+        Lines,
+        LineStrip,
+        Points,
+        Patches
+    };
+
+    enum CullMode {
+        None,
+        Front,
+        Back
+    };
+
+    enum FrontFace {
+        CCW,
+        CW
+    };
+
+    enum ColorMaskComponent {
+        R = 1 << 0,
+        G = 1 << 1,
+        B = 1 << 2,
+        A = 1 << 3
+    };
+    Q_DECLARE_FLAGS(ColorMask, ColorMaskComponent)
+
+    enum BlendFactor {
+        Zero,
+        One,
+        SrcColor,
+        OneMinusSrcColor,
+        DstColor,
+        OneMinusDstColor,
+        SrcAlpha,
+        OneMinusSrcAlpha,
+        DstAlpha,
+        OneMinusDstAlpha,
+        ConstantColor,
+        OneMinusConstantColor,
+        ConstantAlpha,
+        OneMinusConstantAlpha,
+        SrcAlphaSaturate,
+        Src1Color,
+        OneMinusSrc1Color,
+        Src1Alpha,
+        OneMinusSrc1Alpha
+    };
+
+    enum BlendOp {
+        Add,
+        Subtract,
+        ReverseSubtract,
+        Min,
+        Max
+    };
+
+    struct TargetBlend {
+        ColorMask colorWrite = ColorMask(0xF); // R | G | B | A
+        bool enable = false;
+        BlendFactor srcColor = One;
+        BlendFactor dstColor = OneMinusSrcAlpha;
+        BlendOp opColor = Add;
+        BlendFactor srcAlpha = One;
+        BlendFactor dstAlpha = OneMinusSrcAlpha;
+        BlendOp opAlpha = Add;
+    };
+
+    enum CompareOp {
+        Never,
+        Less,
+        Equal,
+        LessOrEqual,
+        Greater,
+        NotEqual,
+        GreaterOrEqual,
+        Always
+    };
+
+    enum StencilOp {
+        StencilZero,
+        Keep,
+        Replace,
+        IncrementAndClamp,
+        DecrementAndClamp,
+        Invert,
+        IncrementAndWrap,
+        DecrementAndWrap
+    };
+
+    struct StencilOpState {
+        StencilOp failOp = Keep;
+        StencilOp depthFailOp = Keep;
+        StencilOp passOp = Keep;
+        CompareOp compareOp = Always;
+    };
+
+    enum PolygonMode {
+        Fill,
+        Line
+    };
+
+    QRhiResource::Type resourceType() const override;
+
+    Flags flags() const { return m_flags; }
+    void setFlags(Flags f) { m_flags = f; }
+
+    Topology topology() const { return m_topology; }
+    void setTopology(Topology t) { m_topology = t; }
+
+    CullMode cullMode() const { return m_cullMode; }
+    void setCullMode(CullMode mode) { m_cullMode = mode; }
+
+    FrontFace frontFace() const { return m_frontFace; }
+    void setFrontFace(FrontFace f) { m_frontFace = f; }
+
+    void setTargetBlends(std::initializer_list<TargetBlend> list) { m_targetBlends = list; }
+    template<typename InputIterator>
+    void setTargetBlends(InputIterator first, InputIterator last)
+    {
+        m_targetBlends.clear();
+        std::copy(first, last, std::back_inserter(m_targetBlends));
+    }
+    const TargetBlend *cbeginTargetBlends() const { return m_targetBlends.cbegin(); }
+    const TargetBlend *cendTargetBlends() const { return m_targetBlends.cend(); }
+    const TargetBlend *targetBlendAt(qsizetype index) const { return &m_targetBlends.at(index); }
+    qsizetype targetBlendCount() const { return m_targetBlends.count(); }
+
+    bool hasDepthTest() const { return m_depthTest; }
+    void setDepthTest(bool enable) { m_depthTest = enable; }
+
+    bool hasDepthWrite() const { return m_depthWrite; }
+    void setDepthWrite(bool enable) { m_depthWrite = enable; }
+
+    CompareOp depthOp() const { return m_depthOp; }
+    void setDepthOp(CompareOp op) { m_depthOp = op; }
+
+    bool hasStencilTest() const { return m_stencilTest; }
+    void setStencilTest(bool enable) { m_stencilTest = enable; }
+
+    StencilOpState stencilFront() const { return m_stencilFront; }
+    void setStencilFront(const StencilOpState &state) { m_stencilFront = state; }
+
+    StencilOpState stencilBack() const { return m_stencilBack; }
+    void setStencilBack(const StencilOpState &state) { m_stencilBack = state; }
+
+    quint32 stencilReadMask() const { return m_stencilReadMask; }
+    void setStencilReadMask(quint32 mask) { m_stencilReadMask = mask; }
+
+    quint32 stencilWriteMask() const { return m_stencilWriteMask; }
+    void setStencilWriteMask(quint32 mask) { m_stencilWriteMask = mask; }
+
+    int sampleCount() const { return m_sampleCount; }
+    void setSampleCount(int s) { m_sampleCount = s; }
+
+    float lineWidth() const { return m_lineWidth; }
+    void setLineWidth(float width) { m_lineWidth = width; }
+
+    int depthBias() const { return m_depthBias; }
+    void setDepthBias(int bias) { m_depthBias = bias; }
+
+    float slopeScaledDepthBias() const { return m_slopeScaledDepthBias; }
+    void setSlopeScaledDepthBias(float bias) { m_slopeScaledDepthBias = bias; }
+
+    void setShaderStages(std::initializer_list<QRhiShaderStage> list) { m_shaderStages = list; }
+    template<typename InputIterator>
+    void setShaderStages(InputIterator first, InputIterator last)
+    {
+        m_shaderStages.clear();
+        std::copy(first, last, std::back_inserter(m_shaderStages));
+    }
+    const QRhiShaderStage *cbeginShaderStages() const { return m_shaderStages.cbegin(); }
+    const QRhiShaderStage *cendShaderStages() const { return m_shaderStages.cend(); }
+    const QRhiShaderStage *shaderStageAt(qsizetype index) const { return &m_shaderStages.at(index); }
+    qsizetype shaderStageCount() const { return m_shaderStages.count(); }
+
+    QRhiVertexInputLayout vertexInputLayout() const { return m_vertexInputLayout; }
+    void setVertexInputLayout(const QRhiVertexInputLayout &layout) { m_vertexInputLayout = layout; }
+
+    QRhiShaderResourceBindings *shaderResourceBindings() const { return m_shaderResourceBindings; }
+    void setShaderResourceBindings(QRhiShaderResourceBindings *srb) { m_shaderResourceBindings = srb; }
+
+    QRhiRenderPassDescriptor *renderPassDescriptor() const { return m_renderPassDesc; }
+    void setRenderPassDescriptor(QRhiRenderPassDescriptor *desc) { m_renderPassDesc = desc; }
+
+    int patchControlPointCount() const { return m_patchControlPointCount; }
+    void setPatchControlPointCount(int count) { m_patchControlPointCount = count; }
+
+    PolygonMode polygonMode() const {return m_polygonMode; }
+    void setPolygonMode(PolygonMode mode) {m_polygonMode = mode; }
+
+    virtual bool create() = 0;
+
+protected:
+    QRhiGraphicsPipeline(QRhiImplementation *rhi);
+    Flags m_flags;
+    Topology m_topology = Triangles;
+    CullMode m_cullMode = None;
+    FrontFace m_frontFace = CCW;
+    QVarLengthArray<TargetBlend, 8> m_targetBlends;
+    bool m_depthTest = false;
+    bool m_depthWrite = false;
+    CompareOp m_depthOp = Less;
+    bool m_stencilTest = false;
+    StencilOpState m_stencilFront;
+    StencilOpState m_stencilBack;
+    quint32 m_stencilReadMask = 0xFF;
+    quint32 m_stencilWriteMask = 0xFF;
+    int m_sampleCount = 1;
+    float m_lineWidth = 1.0f;
+    int m_depthBias = 0;
+    float m_slopeScaledDepthBias = 0.0f;
+    int m_patchControlPointCount = 3;
+    PolygonMode m_polygonMode = Fill;
+    QVarLengthArray<QRhiShaderStage, 4> m_shaderStages;
+    QRhiVertexInputLayout m_vertexInputLayout;
+    QRhiShaderResourceBindings *m_shaderResourceBindings = nullptr;
+    QRhiRenderPassDescriptor *m_renderPassDesc = nullptr;
+};
+
+Q_DECLARE_OPERATORS_FOR_FLAGS(QRhiGraphicsPipeline::Flags)
+Q_DECLARE_OPERATORS_FOR_FLAGS(QRhiGraphicsPipeline::ColorMask)
+Q_DECLARE_TYPEINFO(QRhiGraphicsPipeline::TargetBlend, Q_RELOCATABLE_TYPE);
+
+struct QRhiSwapChainHdrInfo
+{
+    bool isHardCodedDefaults;
+    enum LimitsType {
+        LuminanceInNits,
+        ColorComponentValue
+    };
+    LimitsType limitsType;
+    union {
+        struct {
+            float minLuminance;
+            float maxLuminance;
+        } luminanceInNits;
+        struct {
+            float maxColorComponentValue;
+            float maxPotentialColorComponentValue;
+        } colorComponentValue;
+    } limits;
+};
+
+Q_DECLARE_TYPEINFO(QRhiSwapChainHdrInfo, Q_RELOCATABLE_TYPE);
+
+#ifndef QT_NO_DEBUG_STREAM
+Q_GUI_EXPORT QDebug operator<<(QDebug, const QRhiSwapChainHdrInfo &);
+#endif
+
+struct QRhiSwapChainProxyData
+{
+    void *reserved[2] = {};
+};
+
+class Q_GUI_EXPORT QRhiSwapChain : public QRhiResource
+{
+public:
+    enum Flag {
+        SurfaceHasPreMulAlpha = 1 << 0,
+        SurfaceHasNonPreMulAlpha = 1 << 1,
+        sRGB = 1 << 2,
+        UsedAsTransferSource = 1 << 3,
+        NoVSync = 1 << 4,
+        MinimalBufferCount = 1 << 5
+    };
+    Q_DECLARE_FLAGS(Flags, Flag)
+
+    enum Format {
+        SDR,
+        HDRExtendedSrgbLinear,
+        HDR10
+    };
+
+    enum StereoTargetBuffer {
+        LeftBuffer,
+        RightBuffer
+    };
+
+    QRhiResource::Type resourceType() const override;
+
+    QWindow *window() const { return m_window; }
+    void setWindow(QWindow *window) { m_window = window; }
+
+    QRhiSwapChainProxyData proxyData() const { return m_proxyData; }
+    void setProxyData(const QRhiSwapChainProxyData &d) { m_proxyData = d; }
+
+    Flags flags() const { return m_flags; }
+    void setFlags(Flags f) { m_flags = f; }
+
+    Format format() const { return m_format; }
+    void setFormat(Format f) { m_format = f; }
+
+    QRhiRenderBuffer *depthStencil() const { return m_depthStencil; }
+    void setDepthStencil(QRhiRenderBuffer *ds) { m_depthStencil = ds; }
+
+    int sampleCount() const { return m_sampleCount; }
+    void setSampleCount(int samples) { m_sampleCount = samples; }
+
+    QRhiRenderPassDescriptor *renderPassDescriptor() const { return m_renderPassDesc; }
+    void setRenderPassDescriptor(QRhiRenderPassDescriptor *desc) { m_renderPassDesc = desc; }
+
+    QSize currentPixelSize() const { return m_currentPixelSize; }
+
+    virtual QRhiCommandBuffer *currentFrameCommandBuffer() = 0;
+    virtual QRhiRenderTarget *currentFrameRenderTarget() = 0;
+    virtual QRhiRenderTarget *currentFrameRenderTarget(StereoTargetBuffer targetBuffer);
+    virtual QSize surfacePixelSize() = 0;
+    virtual bool isFormatSupported(Format f) = 0;
+    virtual QRhiRenderPassDescriptor *newCompatibleRenderPassDescriptor() = 0;
+    virtual bool createOrResize() = 0;
+    virtual QRhiSwapChainHdrInfo hdrInfo();
+
+protected:
+    QRhiSwapChain(QRhiImplementation *rhi);
+    QWindow *m_window = nullptr;
+    Flags m_flags;
+    Format m_format = SDR;
+    QRhiRenderBuffer *m_depthStencil = nullptr;
+    int m_sampleCount = 1;
+    QRhiRenderPassDescriptor *m_renderPassDesc = nullptr;
+    QSize m_currentPixelSize;
+    QRhiSwapChainProxyData m_proxyData;
+};
+
+Q_DECLARE_OPERATORS_FOR_FLAGS(QRhiSwapChain::Flags)
+
+class Q_GUI_EXPORT QRhiComputePipeline : public QRhiResource
+{
+public:
+    enum Flag {
+        CompileShadersWithDebugInfo = 1 << 0
+    };
+    Q_DECLARE_FLAGS(Flags, Flag)
+
+    QRhiResource::Type resourceType() const override;
+    virtual bool create() = 0;
+
+    Flags flags() const { return m_flags; }
+    void setFlags(Flags f) { m_flags = f; }
+
+    QRhiShaderStage shaderStage() const { return m_shaderStage; }
+    void setShaderStage(const QRhiShaderStage &stage) { m_shaderStage = stage; }
+
+    QRhiShaderResourceBindings *shaderResourceBindings() const { return m_shaderResourceBindings; }
+    void setShaderResourceBindings(QRhiShaderResourceBindings *srb) { m_shaderResourceBindings = srb; }
+
+protected:
+    QRhiComputePipeline(QRhiImplementation *rhi);
+    Flags m_flags;
+    QRhiShaderStage m_shaderStage;
+    QRhiShaderResourceBindings *m_shaderResourceBindings = nullptr;
+};
+
+Q_DECLARE_OPERATORS_FOR_FLAGS(QRhiComputePipeline::Flags)
+
+class Q_GUI_EXPORT QRhiCommandBuffer : public QRhiResource
+{
+public:
+    enum IndexFormat {
+        IndexUInt16,
+        IndexUInt32
+    };
+
+    enum BeginPassFlag {
+        ExternalContent = 0x01,
+        DoNotTrackResourcesForCompute = 0x02
+    };
+    Q_DECLARE_FLAGS(BeginPassFlags, BeginPassFlag)
+
+    QRhiResource::Type resourceType() const override;
+
+    void resourceUpdate(QRhiResourceUpdateBatch *resourceUpdates);
+
+    void beginPass(QRhiRenderTarget *rt,
+                   const QColor &colorClearValue,
+                   const QRhiDepthStencilClearValue &depthStencilClearValue,
+                   QRhiResourceUpdateBatch *resourceUpdates = nullptr,
+                   BeginPassFlags flags = {});
+    void endPass(QRhiResourceUpdateBatch *resourceUpdates = nullptr);
+
+    void setGraphicsPipeline(QRhiGraphicsPipeline *ps);
+    using DynamicOffset = QPair<int, quint32>; // binding, offset
+    void setShaderResources(QRhiShaderResourceBindings *srb = nullptr,
+                            int dynamicOffsetCount = 0,
+                            const DynamicOffset *dynamicOffsets = nullptr);
+    using VertexInput = QPair<QRhiBuffer *, quint32>; // buffer, offset
+    void setVertexInput(int startBinding, int bindingCount, const VertexInput *bindings,
+                        QRhiBuffer *indexBuf = nullptr, quint32 indexOffset = 0,
+                        IndexFormat indexFormat = IndexUInt16);
+
+    void setViewport(const QRhiViewport &viewport);
+    void setScissor(const QRhiScissor &scissor);
+    void setBlendConstants(const QColor &c);
+    void setStencilRef(quint32 refValue);
+
+    void draw(quint32 vertexCount,
+              quint32 instanceCount = 1,
+              quint32 firstVertex = 0,
+              quint32 firstInstance = 0);
+
+    void drawIndexed(quint32 indexCount,
+                     quint32 instanceCount = 1,
+                     quint32 firstIndex = 0,
+                     qint32 vertexOffset = 0,
+                     quint32 firstInstance = 0);
+
+    void debugMarkBegin(const QByteArray &name);
+    void debugMarkEnd();
+    void debugMarkMsg(const QByteArray &msg);
+
+    void beginComputePass(QRhiResourceUpdateBatch *resourceUpdates = nullptr, BeginPassFlags flags = {});
+    void endComputePass(QRhiResourceUpdateBatch *resourceUpdates = nullptr);
+    void setComputePipeline(QRhiComputePipeline *ps);
+    void dispatch(int x, int y, int z);
+
+    const QRhiNativeHandles *nativeHandles();
+    void beginExternal();
+    void endExternal();
+
+    double lastCompletedGpuTime();
+
+protected:
+    QRhiCommandBuffer(QRhiImplementation *rhi);
+};
+
+Q_DECLARE_OPERATORS_FOR_FLAGS(QRhiCommandBuffer::BeginPassFlags)
+
+struct Q_GUI_EXPORT QRhiReadbackResult
+{
+    std::function<void()> completed = nullptr;
+    QRhiTexture::Format format;
+    QSize pixelSize;
+    QByteArray data;
+};
+
+class Q_GUI_EXPORT QRhiResourceUpdateBatch
+{
+public:
+    ~QRhiResourceUpdateBatch();
+
+    void release();
+
+    void merge(QRhiResourceUpdateBatch *other);
+    bool hasOptimalCapacity() const;
+
+    void updateDynamicBuffer(QRhiBuffer *buf, quint32 offset, quint32 size, const void *data);
+    void uploadStaticBuffer(QRhiBuffer *buf, quint32 offset, quint32 size, const void *data);
+    void uploadStaticBuffer(QRhiBuffer *buf, const void *data);
+    void readBackBuffer(QRhiBuffer *buf, quint32 offset, quint32 size, QRhiReadbackResult *result);
+    void uploadTexture(QRhiTexture *tex, const QRhiTextureUploadDescription &desc);
+    void uploadTexture(QRhiTexture *tex, const QImage &image);
+    void copyTexture(QRhiTexture *dst, QRhiTexture *src, const QRhiTextureCopyDescription &desc = QRhiTextureCopyDescription());
+    void readBackTexture(const QRhiReadbackDescription &rb, QRhiReadbackResult *result);
+    void generateMips(QRhiTexture *tex);
+
+private:
+    QRhiResourceUpdateBatch(QRhiImplementation *rhi);
+    Q_DISABLE_COPY(QRhiResourceUpdateBatch)
+    QRhiResourceUpdateBatchPrivate *d;
+    friend class QRhiResourceUpdateBatchPrivate;
+    friend class QRhi;
+};
+
+struct Q_GUI_EXPORT QRhiDriverInfo
+{
+    enum DeviceType {
+        UnknownDevice,
+        IntegratedDevice,
+        DiscreteDevice,
+        ExternalDevice,
+        VirtualDevice,
+        CpuDevice
+    };
+
+    QByteArray deviceName;
+    quint64 deviceId = 0;
+    quint64 vendorId = 0;
+    DeviceType deviceType = UnknownDevice;
+};
+
+Q_DECLARE_TYPEINFO(QRhiDriverInfo, Q_RELOCATABLE_TYPE);
+
+#ifndef QT_NO_DEBUG_STREAM
+Q_GUI_EXPORT QDebug operator<<(QDebug, const QRhiDriverInfo &);
+#endif
+
+struct Q_GUI_EXPORT QRhiStats
+{
+    qint64 totalPipelineCreationTime = 0;
+    // Vulkan or D3D12 memory allocator statistics
+    quint32 blockCount = 0;
+    quint32 allocCount = 0;
+    quint64 usedBytes = 0;
+    quint64 unusedBytes = 0;
+    // D3D12 only, from IDXGIAdapter3::QueryVideoMemoryInfo(), incl. all resources
+    quint64 totalUsageBytes = 0;
+};
+
+Q_DECLARE_TYPEINFO(QRhiStats, Q_RELOCATABLE_TYPE);
+
+#ifndef QT_NO_DEBUG_STREAM
+Q_GUI_EXPORT QDebug operator<<(QDebug, const QRhiStats &);
+#endif
+
+struct Q_GUI_EXPORT QRhiInitParams
+{
+};
+
+class Q_GUI_EXPORT QRhi
+{
+public:
+    enum Implementation {
+        Null,
+        Vulkan,
+        OpenGLES2,
+        D3D11,
+        Metal,
+        D3D12
+    };
+
+    enum Flag {
+        EnableDebugMarkers = 1 << 0,
+        PreferSoftwareRenderer = 1 << 1,
+        EnablePipelineCacheDataSave = 1 << 2,
+        EnableTimestamps = 1 << 3
+    };
+    Q_DECLARE_FLAGS(Flags, Flag)
+
+    enum FrameOpResult {
+        FrameOpSuccess = 0,
+        FrameOpError,
+        FrameOpSwapChainOutOfDate,
+        FrameOpDeviceLost
+    };
+
+    enum Feature {
+        MultisampleTexture = 1,
+        MultisampleRenderBuffer,
+        DebugMarkers,
+        Timestamps,
+        Instancing,
+        CustomInstanceStepRate,
+        PrimitiveRestart,
+        NonDynamicUniformBuffers,
+        NonFourAlignedEffectiveIndexBufferOffset,
+        NPOTTextureRepeat,
+        RedOrAlpha8IsRed,
+        ElementIndexUint,
+        Compute,
+        WideLines,
+        VertexShaderPointSize,
+        BaseVertex,
+        BaseInstance,
+        TriangleFanTopology,
+        ReadBackNonUniformBuffer,
+        ReadBackNonBaseMipLevel,
+        TexelFetch,
+        RenderToNonBaseMipLevel,
+        IntAttributes,
+        ScreenSpaceDerivatives,
+        ReadBackAnyTextureFormat,
+        PipelineCacheDataLoadSave,
+        ImageDataStride,
+        RenderBufferImport,
+        ThreeDimensionalTextures,
+        RenderTo3DTextureSlice,
+        TextureArrays,
+        Tessellation,
+        GeometryShader,
+        TextureArrayRange,
+        NonFillPolygonMode,
+        OneDimensionalTextures,
+        OneDimensionalTextureMipmaps,
+        HalfAttributes,
+        RenderToOneDimensionalTexture,
+        ThreeDimensionalTextureMipmaps
+    };
+
+    enum BeginFrameFlag {
+    };
+    Q_DECLARE_FLAGS(BeginFrameFlags, BeginFrameFlag)
+
+    enum EndFrameFlag {
+        SkipPresent = 1 << 0
+    };
+    Q_DECLARE_FLAGS(EndFrameFlags, EndFrameFlag)
+
+    enum ResourceLimit {
+        TextureSizeMin = 1,
+        TextureSizeMax,
+        MaxColorAttachments,
+        FramesInFlight,
+        MaxAsyncReadbackFrames,
+        MaxThreadGroupsPerDimension,
+        MaxThreadsPerThreadGroup,
+        MaxThreadGroupX,
+        MaxThreadGroupY,
+        MaxThreadGroupZ,
+        TextureArraySizeMax,
+        MaxUniformBufferRange,
+        MaxVertexInputs,
+        MaxVertexOutputs
+    };
+
+    ~QRhi();
+
+    static QRhi *create(Implementation impl,
+                        QRhiInitParams *params,
+                        Flags flags = {},
+                        QRhiNativeHandles *importDevice = nullptr);
+    static bool probe(Implementation impl, QRhiInitParams *params);
+
+    Implementation backend() const;
+    const char *backendName() const;
+    static const char *backendName(Implementation impl);
+    QRhiDriverInfo driverInfo() const;
+    QThread *thread() const;
+
+    using CleanupCallback = std::function<void(QRhi *)>;
+    void addCleanupCallback(const CleanupCallback &callback);
+    void runCleanup();
+
+    QRhiGraphicsPipeline *newGraphicsPipeline();
+    QRhiComputePipeline *newComputePipeline();
+    QRhiShaderResourceBindings *newShaderResourceBindings();
+
+    QRhiBuffer *newBuffer(QRhiBuffer::Type type,
+                          QRhiBuffer::UsageFlags usage,
+                          quint32 size);
+
+    QRhiRenderBuffer *newRenderBuffer(QRhiRenderBuffer::Type type,
+                                      const QSize &pixelSize,
+                                      int sampleCount = 1,
+                                      QRhiRenderBuffer::Flags flags = {},
+                                      QRhiTexture::Format backingFormatHint = QRhiTexture::UnknownFormat);
+
+    QRhiTexture *newTexture(QRhiTexture::Format format,
+                            const QSize &pixelSize,
+                            int sampleCount = 1,
+                            QRhiTexture::Flags flags = {});
+
+    QRhiTexture *newTexture(QRhiTexture::Format format,
+                            int width, int height, int depth,
+                            int sampleCount = 1,
+                            QRhiTexture::Flags flags = {});
+
+    QRhiTexture *newTextureArray(QRhiTexture::Format format,
+                                 int arraySize,
+                                 const QSize &pixelSize,
+                                 int sampleCount = 1,
+                                 QRhiTexture::Flags flags = {});
+
+    QRhiSampler *newSampler(QRhiSampler::Filter magFilter,
+                            QRhiSampler::Filter minFilter,
+                            QRhiSampler::Filter mipmapMode,
+                            QRhiSampler::AddressMode addressU,
+                            QRhiSampler::AddressMode addressV,
+                            QRhiSampler::AddressMode addressW = QRhiSampler::Repeat);
+
+    QRhiTextureRenderTarget *newTextureRenderTarget(const QRhiTextureRenderTargetDescription &desc,
+                                                    QRhiTextureRenderTarget::Flags flags = {});
+
+    QRhiSwapChain *newSwapChain();
+    FrameOpResult beginFrame(QRhiSwapChain *swapChain, BeginFrameFlags flags = {});
+    FrameOpResult endFrame(QRhiSwapChain *swapChain, EndFrameFlags flags = {});
+    bool isRecordingFrame() const;
+    int currentFrameSlot() const;
+
+    FrameOpResult beginOffscreenFrame(QRhiCommandBuffer **cb, BeginFrameFlags flags = {});
+    FrameOpResult endOffscreenFrame(EndFrameFlags flags = {});
+
+    QRhi::FrameOpResult finish();
+
+    QRhiResourceUpdateBatch *nextResourceUpdateBatch();
+
+    QList<int> supportedSampleCounts() const;
+
+    int ubufAlignment() const;
+    int ubufAligned(int v) const;
+
+    static int mipLevelsForSize(const QSize &size);
+    static QSize sizeForMipLevel(int mipLevel, const QSize &baseLevelSize);
+
+    bool isYUpInFramebuffer() const;
+    bool isYUpInNDC() const;
+    bool isClipDepthZeroToOne() const;
+
+    QMatrix4x4 clipSpaceCorrMatrix() const;
+
+    bool isTextureFormatSupported(QRhiTexture::Format format, QRhiTexture::Flags flags = {}) const;
+    bool isFeatureSupported(QRhi::Feature feature) const;
+    int resourceLimit(ResourceLimit limit) const;
+
+    const QRhiNativeHandles *nativeHandles();
+    bool makeThreadLocalNativeContextCurrent();
+
+    static const int MAX_MIP_LEVELS = 16; // -> max width or height is 65536
+
+    void releaseCachedResources();
+
+    bool isDeviceLost() const;
+
+    QByteArray pipelineCacheData();
+    void setPipelineCacheData(const QByteArray &data);
+
+    QRhiStats statistics() const;
+
+    static QRhiSwapChainProxyData updateSwapChainProxyData(Implementation impl, QWindow *window);
+
+protected:
+    QRhi();
+
+private:
+    Q_DISABLE_COPY(QRhi)
+    QRhiImplementation *d = nullptr;
+};
+
+Q_DECLARE_OPERATORS_FOR_FLAGS(QRhi::Flags)
+Q_DECLARE_OPERATORS_FOR_FLAGS(QRhi::BeginFrameFlags)
+Q_DECLARE_OPERATORS_FOR_FLAGS(QRhi::EndFrameFlags)
+
+QT_END_NAMESPACE
+
+#include <rhi/qrhi_platform.h>
+
+#endif
diff --git a/src/gui/rhi/qrhi_p.h b/src/gui/rhi/qrhi_p.h
index de322d37..05df169a 100644
--- a/src/gui/rhi/qrhi_p.h
+++ b/src/gui/rhi/qrhi_p.h
@@ -1,8 +1,8 @@
-// Copyright (C) 2019 The Qt Company Ltd.
+// Copyright (C) 2023 The Qt Company Ltd.
 // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
 
-#ifndef QRHI_H
-#define QRHI_H
+#ifndef QRHI_P_H
+#define QRHI_P_H
 
 //
 //  W A R N I N G
@@ -15,1823 +15,789 @@
 // We mean it.
 //
 
-#include <QtGui/qtguiglobal.h>
-#include <QSize>
-#include <QMatrix4x4>
-#include <QList>
-#include <QVarLengthArray>
-#include <QThread>
-#include <QColor>
-#include <QImage>
-#include <functional>
-#include <array>
-#include <private/qshader_p.h>
+#include <rhi/qrhi.h>
+#include <QBitArray>
+#include <QAtomicInt>
+#include <QElapsedTimer>
+#include <QLoggingCategory>
+#include <QtCore/qset.h>
+#include <QtCore/qvarlengtharray.h>
 
 QT_BEGIN_NAMESPACE
 
-class QWindow;
-class QRhi;
-class QRhiImplementation;
-class QRhiBuffer;
-class QRhiRenderBuffer;
-class QRhiTexture;
-class QRhiSampler;
-class QRhiCommandBuffer;
-class QRhiResourceUpdateBatch;
-class QRhiResourceUpdateBatchPrivate;
-class QRhiSwapChain;
+#define QRHI_RES(t, x) static_cast<t *>(x)
+#define QRHI_RES_RHI(t) t *rhiD = static_cast<t *>(m_rhi)
 
-class Q_GUI_EXPORT QRhiDepthStencilClearValue
+Q_DECLARE_LOGGING_CATEGORY(QRHI_LOG_INFO)
+
+class QRhiImplementation
 {
 public:
-    QRhiDepthStencilClearValue() = default;
-    QRhiDepthStencilClearValue(float d, quint32 s);
-
-    float depthClearValue() const { return m_d; }
-    void setDepthClearValue(float d) { m_d = d; }
-
-    quint32 stencilClearValue() const { return m_s; }
-    void setStencilClearValue(quint32 s) { m_s = s; }
-
-private:
-    float m_d = 1.0f;
-    quint32 m_s = 0;
-};
-
-Q_DECLARE_TYPEINFO(QRhiDepthStencilClearValue, Q_RELOCATABLE_TYPE);
-
-Q_GUI_EXPORT bool operator==(const QRhiDepthStencilClearValue &a, const QRhiDepthStencilClearValue &b) noexcept;
-Q_GUI_EXPORT bool operator!=(const QRhiDepthStencilClearValue &a, const QRhiDepthStencilClearValue &b) noexcept;
-Q_GUI_EXPORT size_t qHash(const QRhiDepthStencilClearValue &v, size_t seed = 0) noexcept;
-#ifndef QT_NO_DEBUG_STREAM
-Q_GUI_EXPORT QDebug operator<<(QDebug, const QRhiDepthStencilClearValue &);
-#endif
-
-class Q_GUI_EXPORT QRhiViewport
-{
-public:
-    QRhiViewport() = default;
-    QRhiViewport(float x, float y, float w, float h, float minDepth = 0.0f, float maxDepth = 1.0f);
-
-    std::array<float, 4> viewport() const { return m_rect; }
-    void setViewport(float x, float y, float w, float h) {
-        m_rect[0] = x; m_rect[1] = y; m_rect[2] = w; m_rect[3] = h;
-    }
-
-    float minDepth() const { return m_minDepth; }
-    void setMinDepth(float minDepth) { m_minDepth = minDepth; }
-
-    float maxDepth() const { return m_maxDepth; }
-    void setMaxDepth(float maxDepth) { m_maxDepth = maxDepth; }
-
-private:
-    std::array<float, 4> m_rect { { 0.0f, 0.0f, 0.0f, 0.0f } };
-    float m_minDepth = 0.0f;
-    float m_maxDepth = 1.0f;
-};
-
-Q_DECLARE_TYPEINFO(QRhiViewport, Q_RELOCATABLE_TYPE);
-
-Q_GUI_EXPORT bool operator==(const QRhiViewport &a, const QRhiViewport &b) noexcept;
-Q_GUI_EXPORT bool operator!=(const QRhiViewport &a, const QRhiViewport &b) noexcept;
-Q_GUI_EXPORT size_t qHash(const QRhiViewport &v, size_t seed = 0) noexcept;
-#ifndef QT_NO_DEBUG_STREAM
-Q_GUI_EXPORT QDebug operator<<(QDebug, const QRhiViewport &);
-#endif
-
-class Q_GUI_EXPORT QRhiScissor
-{
-public:
-    QRhiScissor() = default;
-    QRhiScissor(int x, int y, int w, int h);
-
-    std::array<int, 4> scissor() const { return m_rect; }
-    void setScissor(int x, int y, int w, int h) {
-        m_rect[0] = x; m_rect[1] = y; m_rect[2] = w; m_rect[3] = h;
-    }
-
-private:
-    std::array<int, 4> m_rect { { 0, 0, 0, 0 } };
-};
-
-Q_DECLARE_TYPEINFO(QRhiScissor, Q_RELOCATABLE_TYPE);
-
-Q_GUI_EXPORT bool operator==(const QRhiScissor &a, const QRhiScissor &b) noexcept;
-Q_GUI_EXPORT bool operator!=(const QRhiScissor &a, const QRhiScissor &b) noexcept;
-Q_GUI_EXPORT size_t qHash(const QRhiScissor &v, size_t seed = 0) noexcept;
-#ifndef QT_NO_DEBUG_STREAM
-Q_GUI_EXPORT QDebug operator<<(QDebug, const QRhiScissor &);
-#endif
-
-class Q_GUI_EXPORT QRhiVertexInputBinding
-{
-public:
-    enum Classification {
-        PerVertex,
-        PerInstance
-    };
-
-    QRhiVertexInputBinding() = default;
-    QRhiVertexInputBinding(quint32 stride, Classification cls = PerVertex, quint32 stepRate = 1);
-
-    quint32 stride() const { return m_stride; }
-    void setStride(quint32 s) { m_stride = s; }
-
-    Classification classification() const { return m_classification; }
-    void setClassification(Classification c) { m_classification = c; }
-
-    quint32 instanceStepRate() const { return m_instanceStepRate; }
-    void setInstanceStepRate(quint32 rate) { m_instanceStepRate = rate; }
-
-private:
-    quint32 m_stride = 0;
-    Classification m_classification = PerVertex;
-    quint32 m_instanceStepRate = 1;
-};
-
-Q_DECLARE_TYPEINFO(QRhiVertexInputBinding, Q_RELOCATABLE_TYPE);
-
-Q_GUI_EXPORT bool operator==(const QRhiVertexInputBinding &a, const QRhiVertexInputBinding &b) noexcept;
-Q_GUI_EXPORT bool operator!=(const QRhiVertexInputBinding &a, const QRhiVertexInputBinding &b) noexcept;
-Q_GUI_EXPORT size_t qHash(const QRhiVertexInputBinding &v, size_t seed = 0) noexcept;
-#ifndef QT_NO_DEBUG_STREAM
-Q_GUI_EXPORT QDebug operator<<(QDebug, const QRhiVertexInputBinding &);
-#endif
-
-class Q_GUI_EXPORT QRhiVertexInputAttribute
-{
-public:
-    enum Format {
-        Float4,
-        Float3,
-        Float2,
-        Float,
-        UNormByte4,
-        UNormByte2,
-        UNormByte,
-        UInt4,
-        UInt3,
-        UInt2,
-        UInt,
-        SInt4,
-        SInt3,
-        SInt2,
-        SInt
-    };
-
-    QRhiVertexInputAttribute() = default;
-    QRhiVertexInputAttribute(int binding, int location, Format format, quint32 offset, int matrixSlice = -1);
-
-    int binding() const { return m_binding; }
-    void setBinding(int b) { m_binding = b; }
-
-    int location() const { return m_location; }
-    void setLocation(int loc) { m_location = loc; }
-
-    Format format() const { return m_format; }
-    void setFormat(Format f) { m_format = f; }
-
-    quint32 offset() const { return m_offset; }
-    void setOffset(quint32 ofs) { m_offset = ofs; }
-
-    int matrixSlice() const { return m_matrixSlice; }
-    void setMatrixSlice(int slice) { m_matrixSlice = slice; }
-
-private:
-    int m_binding = 0;
-    int m_location = 0;
-    Format m_format = Float4;
-    quint32 m_offset = 0;
-    int m_matrixSlice = -1;
-};
-
-Q_DECLARE_TYPEINFO(QRhiVertexInputAttribute, Q_RELOCATABLE_TYPE);
-
-Q_GUI_EXPORT bool operator==(const QRhiVertexInputAttribute &a, const QRhiVertexInputAttribute &b) noexcept;
-Q_GUI_EXPORT bool operator!=(const QRhiVertexInputAttribute &a, const QRhiVertexInputAttribute &b) noexcept;
-Q_GUI_EXPORT size_t qHash(const QRhiVertexInputAttribute &v, size_t seed = 0) noexcept;
-#ifndef QT_NO_DEBUG_STREAM
-Q_GUI_EXPORT QDebug operator<<(QDebug, const QRhiVertexInputAttribute &);
-#endif
-
-class Q_GUI_EXPORT QRhiVertexInputLayout
-{
-public:
-    QRhiVertexInputLayout() = default;
-
-    void setBindings(std::initializer_list<QRhiVertexInputBinding> list) { m_bindings = list; }
-    template<typename InputIterator>
-    void setBindings(InputIterator first, InputIterator last)
-    {
-        m_bindings.clear();
-        std::copy(first, last, std::back_inserter(m_bindings));
-    }
-    const QRhiVertexInputBinding *cbeginBindings() const { return m_bindings.cbegin(); }
-    const QRhiVertexInputBinding *cendBindings() const { return m_bindings.cend(); }
-    const QRhiVertexInputBinding *bindingAt(int index) const { return &m_bindings.at(index); }
-
-    void setAttributes(std::initializer_list<QRhiVertexInputAttribute> list) { m_attributes = list; }
-    template<typename InputIterator>
-    void setAttributes(InputIterator first, InputIterator last)
-    {
-        m_attributes.clear();
-        std::copy(first, last, std::back_inserter(m_attributes));
-    }
-    const QRhiVertexInputAttribute *cbeginAttributes() const { return m_attributes.cbegin(); }
-    const QRhiVertexInputAttribute *cendAttributes() const { return m_attributes.cend(); }
-
-private:
-    QVarLengthArray<QRhiVertexInputBinding, 8> m_bindings;
-    QVarLengthArray<QRhiVertexInputAttribute, 8> m_attributes;
-
-    friend Q_GUI_EXPORT bool operator==(const QRhiVertexInputLayout &a, const QRhiVertexInputLayout &b) noexcept;
-    friend Q_GUI_EXPORT size_t qHash(const QRhiVertexInputLayout &v, size_t seed) noexcept;
-    friend Q_GUI_EXPORT QDebug operator<<(QDebug, const QRhiVertexInputLayout &);
-};
-
-Q_GUI_EXPORT bool operator==(const QRhiVertexInputLayout &a, const QRhiVertexInputLayout &b) noexcept;
-Q_GUI_EXPORT bool operator!=(const QRhiVertexInputLayout &a, const QRhiVertexInputLayout &b) noexcept;
-Q_GUI_EXPORT size_t qHash(const QRhiVertexInputLayout &v, size_t seed = 0) noexcept;
-#ifndef QT_NO_DEBUG_STREAM
-Q_GUI_EXPORT QDebug operator<<(QDebug, const QRhiVertexInputLayout &);
-#endif
-
-class Q_GUI_EXPORT QRhiShaderStage
-{
-public:
-    enum Type {
-        Vertex,
-        TessellationControl,
-        TessellationEvaluation,
-        Geometry,
-        Fragment,
-        Compute
-    };
-
-    QRhiShaderStage() = default;
-    QRhiShaderStage(Type type, const QShader &shader,
-                    QShader::Variant v = QShader::StandardShader);
-
-    Type type() const { return m_type; }
-    void setType(Type t) { m_type = t; }
-
-    QShader shader() const { return m_shader; }
-    void setShader(const QShader &s) { m_shader = s; }
-
-    QShader::Variant shaderVariant() const { return m_shaderVariant; }
-    void setShaderVariant(QShader::Variant v) { m_shaderVariant = v; }
-
-private:
-    Type m_type = Vertex;
-    QShader m_shader;
-    QShader::Variant m_shaderVariant = QShader::StandardShader;
-};
-
-Q_DECLARE_TYPEINFO(QRhiShaderStage, Q_RELOCATABLE_TYPE);
-
-Q_GUI_EXPORT bool operator==(const QRhiShaderStage &a, const QRhiShaderStage &b) noexcept;
-Q_GUI_EXPORT bool operator!=(const QRhiShaderStage &a, const QRhiShaderStage &b) noexcept;
-Q_GUI_EXPORT size_t qHash(const QRhiShaderStage &s, size_t seed = 0) noexcept;
-#ifndef QT_NO_DEBUG_STREAM
-Q_GUI_EXPORT QDebug operator<<(QDebug, const QRhiShaderStage &);
-#endif
-
-using QRhiGraphicsShaderStage = QRhiShaderStage;
-
-class Q_GUI_EXPORT QRhiShaderResourceBinding
-{
-public:
-    enum Type {
-        UniformBuffer,
-        SampledTexture,
-        Texture,
-        Sampler,
-        ImageLoad,
-        ImageStore,
-        ImageLoadStore,
-        BufferLoad,
-        BufferStore,
-        BufferLoadStore
-    };
-
-    enum StageFlag {
-        VertexStage = 1 << 0,
-        TessellationControlStage = 1 << 1,
-        TessellationEvaluationStage = 1 << 2,
-        GeometryStage = 1 << 3,
-        FragmentStage = 1 << 4,
-        ComputeStage = 1 << 5
-    };
-    Q_DECLARE_FLAGS(StageFlags, StageFlag)
-
-    QRhiShaderResourceBinding() = default;
-
-    bool isLayoutCompatible(const QRhiShaderResourceBinding &other) const;
-
-    static QRhiShaderResourceBinding uniformBuffer(int binding, StageFlags stage, QRhiBuffer *buf);
-    static QRhiShaderResourceBinding uniformBuffer(int binding, StageFlags stage, QRhiBuffer *buf, quint32 offset, quint32 size);
-    static QRhiShaderResourceBinding uniformBufferWithDynamicOffset(int binding, StageFlags stage, QRhiBuffer *buf, quint32 size);
-
-    static QRhiShaderResourceBinding sampledTexture(int binding, StageFlags stage, QRhiTexture *tex, QRhiSampler *sampler);
-
-    struct TextureAndSampler {
-        QRhiTexture *tex;
-        QRhiSampler *sampler;
-    };
-    static QRhiShaderResourceBinding sampledTextures(int binding, StageFlags stage, int count, const TextureAndSampler *texSamplers);
-
-    static QRhiShaderResourceBinding texture(int binding, StageFlags stage, QRhiTexture *tex);
-    static QRhiShaderResourceBinding textures(int binding, StageFlags stage, int count, QRhiTexture **tex);
-    static QRhiShaderResourceBinding sampler(int binding, StageFlags stage, QRhiSampler *sampler);
-
-    static QRhiShaderResourceBinding imageLoad(int binding, StageFlags stage, QRhiTexture *tex, int level);
-    static QRhiShaderResourceBinding imageStore(int binding, StageFlags stage, QRhiTexture *tex, int level);
-    static QRhiShaderResourceBinding imageLoadStore(int binding, StageFlags stage, QRhiTexture *tex, int level);
-
-    static QRhiShaderResourceBinding bufferLoad(int binding, StageFlags stage, QRhiBuffer *buf);
-    static QRhiShaderResourceBinding bufferLoad(int binding, StageFlags stage, QRhiBuffer *buf, quint32 offset, quint32 size);
-    static QRhiShaderResourceBinding bufferStore(int binding, StageFlags stage, QRhiBuffer *buf);
-    static QRhiShaderResourceBinding bufferStore(int binding, StageFlags stage, QRhiBuffer *buf, quint32 offset, quint32 size);
-    static QRhiShaderResourceBinding bufferLoadStore(int binding, StageFlags stage, QRhiBuffer *buf);
-    static QRhiShaderResourceBinding bufferLoadStore(int binding, StageFlags stage, QRhiBuffer *buf, quint32 offset, quint32 size);
-
-    struct Data
-    {
-        int binding;
-        QRhiShaderResourceBinding::StageFlags stage;
-        QRhiShaderResourceBinding::Type type;
-        struct UniformBufferData {
-            QRhiBuffer *buf;
-            quint32 offset;
-            quint32 maybeSize;
-            bool hasDynamicOffset;
-        };
-        static const int MAX_TEX_SAMPLER_ARRAY_SIZE = 16;
-        struct TextureAndOrSamplerData {
-            int count;
-            TextureAndSampler texSamplers[MAX_TEX_SAMPLER_ARRAY_SIZE];
-        };
-        struct StorageImageData {
-            QRhiTexture *tex;
-            int level;
-        };
-        struct StorageBufferData {
-            QRhiBuffer *buf;
-            quint32 offset;
-            quint32 maybeSize;
-        };
-        union {
-            UniformBufferData ubuf;
-            TextureAndOrSamplerData stex;
-            StorageImageData simage;
-            StorageBufferData sbuf;
-        } u;
-
-        int arraySize() const
-        {
-            return type == QRhiShaderResourceBinding::SampledTexture || type == QRhiShaderResourceBinding::Texture
-                    ? u.stex.count
-                    : 1;
-        }
-
-        template<typename Output>
-        Output serialize(Output dst) const
-        {
-            // must write out exactly LAYOUT_DESC_ENTRIES_PER_BINDING elements here
-            *dst++ = quint32(binding);
-            *dst++ = quint32(stage);
-            *dst++ = quint32(type);
-            *dst++ = quint32(arraySize());
-            return dst;
-        }
-    };
-
-    Data *data() { return &d; }
-    const Data *data() const { return &d; }
-
-    static const int LAYOUT_DESC_ENTRIES_PER_BINDING = 4;
-
-    template<typename Output>
-    static void serializeLayoutDescription(const QRhiShaderResourceBinding *first,
-                                           const QRhiShaderResourceBinding *last,
-                                           Output dst)
-    {
-        while (first != last) {
-            dst = first->data()->serialize(dst);
-            ++first;
-        }
-    }
-
-private:
-    Data d;
-};
-
-Q_DECLARE_OPERATORS_FOR_FLAGS(QRhiShaderResourceBinding::StageFlags)
-
-Q_DECLARE_TYPEINFO(QRhiShaderResourceBinding, Q_PRIMITIVE_TYPE);
-
-Q_GUI_EXPORT bool operator==(const QRhiShaderResourceBinding &a, const QRhiShaderResourceBinding &b) noexcept;
-Q_GUI_EXPORT bool operator!=(const QRhiShaderResourceBinding &a, const QRhiShaderResourceBinding &b) noexcept;
-Q_GUI_EXPORT size_t qHash(const QRhiShaderResourceBinding &b, size_t seed = 0) noexcept;
-#ifndef QT_NO_DEBUG_STREAM
-Q_GUI_EXPORT QDebug operator<<(QDebug, const QRhiShaderResourceBinding &);
-#endif
-
-class Q_GUI_EXPORT QRhiColorAttachment
-{
-public:
-    QRhiColorAttachment() = default;
-    QRhiColorAttachment(QRhiTexture *texture);
-    QRhiColorAttachment(QRhiRenderBuffer *renderBuffer);
-
-    QRhiTexture *texture() const { return m_texture; }
-    void setTexture(QRhiTexture *tex) { m_texture = tex; }
-
-    QRhiRenderBuffer *renderBuffer() const { return m_renderBuffer; }
-    void setRenderBuffer(QRhiRenderBuffer *rb) { m_renderBuffer = rb; }
-
-    int layer() const { return m_layer; }
-    void setLayer(int layer) { m_layer = layer; }
-
-    int level() const { return m_level; }
-    void setLevel(int level) { m_level = level; }
-
-    QRhiTexture *resolveTexture() const { return m_resolveTexture; }
-    void setResolveTexture(QRhiTexture *tex) { m_resolveTexture = tex; }
-
-    int resolveLayer() const { return m_resolveLayer; }
-    void setResolveLayer(int layer) { m_resolveLayer = layer; }
-
-    int resolveLevel() const { return m_resolveLevel; }
-    void setResolveLevel(int level) { m_resolveLevel = level; }
-
-private:
-    QRhiTexture *m_texture = nullptr;
-    QRhiRenderBuffer *m_renderBuffer = nullptr;
-    int m_layer = 0;
-    int m_level = 0;
-    QRhiTexture *m_resolveTexture = nullptr;
-    int m_resolveLayer = 0;
-    int m_resolveLevel = 0;
-};
-
-Q_DECLARE_TYPEINFO(QRhiColorAttachment, Q_RELOCATABLE_TYPE);
-
-class Q_GUI_EXPORT QRhiTextureRenderTargetDescription
-{
-public:
-    QRhiTextureRenderTargetDescription() = default;
-    QRhiTextureRenderTargetDescription(const QRhiColorAttachment &colorAttachment);
-    QRhiTextureRenderTargetDescription(const QRhiColorAttachment &colorAttachment, QRhiRenderBuffer *depthStencilBuffer);
-    QRhiTextureRenderTargetDescription(const QRhiColorAttachment &colorAttachment, QRhiTexture *depthTexture);
-
-    void setColorAttachments(std::initializer_list<QRhiColorAttachment> list) { m_colorAttachments = list; }
-    template<typename InputIterator>
-    void setColorAttachments(InputIterator first, InputIterator last)
-    {
-        m_colorAttachments.clear();
-        std::copy(first, last, std::back_inserter(m_colorAttachments));
-    }
-    const QRhiColorAttachment *cbeginColorAttachments() const { return m_colorAttachments.cbegin(); }
-    const QRhiColorAttachment *cendColorAttachments() const { return m_colorAttachments.cend(); }
-    const QRhiColorAttachment *colorAttachmentAt(int index) const { return &m_colorAttachments.at(index); }
-
-    QRhiRenderBuffer *depthStencilBuffer() const { return m_depthStencilBuffer; }
-    void setDepthStencilBuffer(QRhiRenderBuffer *renderBuffer) { m_depthStencilBuffer = renderBuffer; }
-
-    QRhiTexture *depthTexture() const { return m_depthTexture; }
-    void setDepthTexture(QRhiTexture *texture) { m_depthTexture = texture; }
-
-private:
-    QVarLengthArray<QRhiColorAttachment, 8> m_colorAttachments;
-    QRhiRenderBuffer *m_depthStencilBuffer = nullptr;
-    QRhiTexture *m_depthTexture = nullptr;
-};
-
-class Q_GUI_EXPORT QRhiTextureSubresourceUploadDescription
-{
-public:
-    QRhiTextureSubresourceUploadDescription() = default;
-    explicit QRhiTextureSubresourceUploadDescription(const QImage &image);
-    QRhiTextureSubresourceUploadDescription(const void *data, quint32 size);
-    explicit QRhiTextureSubresourceUploadDescription(const QByteArray &data);
-
-    QImage image() const { return m_image; }
-    void setImage(const QImage &image) { m_image = image; }
-
-    QByteArray data() const { return m_data; }
-    void setData(const QByteArray &data) { m_data = data; }
-
-    quint32 dataStride() const { return m_dataStride; }
-    void setDataStride(quint32 stride) { m_dataStride = stride; }
-
-    QPoint destinationTopLeft() const { return m_destinationTopLeft; }
-    void setDestinationTopLeft(const QPoint &p) { m_destinationTopLeft = p; }
-
-    QSize sourceSize() const { return m_sourceSize; }
-    void setSourceSize(const QSize &size) { m_sourceSize = size; }
-
-    QPoint sourceTopLeft() const { return m_sourceTopLeft; }
-    void setSourceTopLeft(const QPoint &p) { m_sourceTopLeft = p; }
-
-private:
-    QImage m_image;
-    QByteArray m_data;
-    quint32 m_dataStride = 0;
-    QPoint m_destinationTopLeft;
-    QSize m_sourceSize;
-    QPoint m_sourceTopLeft;
-};
-
-Q_DECLARE_TYPEINFO(QRhiTextureSubresourceUploadDescription, Q_RELOCATABLE_TYPE);
-
-class Q_GUI_EXPORT QRhiTextureUploadEntry
-{
-public:
-    QRhiTextureUploadEntry() = default;
-    QRhiTextureUploadEntry(int layer, int level, const QRhiTextureSubresourceUploadDescription &desc);
-
-    int layer() const { return m_layer; }
-    void setLayer(int layer) { m_layer = layer; }
-
-    int level() const { return m_level; }
-    void setLevel(int level) { m_level = level; }
-
-    QRhiTextureSubresourceUploadDescription description() const { return m_desc; }
-    void setDescription(const QRhiTextureSubresourceUploadDescription &desc) { m_desc = desc; }
-
-private:
-    int m_layer = 0;
-    int m_level = 0;
-    QRhiTextureSubresourceUploadDescription m_desc;
-};
-
-Q_DECLARE_TYPEINFO(QRhiTextureUploadEntry, Q_RELOCATABLE_TYPE);
-
-class Q_GUI_EXPORT QRhiTextureUploadDescription
-{
-public:
-    QRhiTextureUploadDescription() = default;
-    QRhiTextureUploadDescription(const QRhiTextureUploadEntry &entry);
-    QRhiTextureUploadDescription(std::initializer_list<QRhiTextureUploadEntry> list);
-
-    void setEntries(std::initializer_list<QRhiTextureUploadEntry> list) { m_entries = list; }
-    template<typename InputIterator>
-    void setEntries(InputIterator first, InputIterator last)
-    {
-        m_entries.clear();
-        std::copy(first, last, std::back_inserter(m_entries));
-    }
-    const QRhiTextureUploadEntry *cbeginEntries() const { return m_entries.cbegin(); }
-    const QRhiTextureUploadEntry *cendEntries() const { return m_entries.cend(); }
-
-private:
-    QVarLengthArray<QRhiTextureUploadEntry, 16> m_entries;
-};
-
-class Q_GUI_EXPORT QRhiTextureCopyDescription
-{
-public:
-    QRhiTextureCopyDescription() = default;
-
-    QSize pixelSize() const { return m_pixelSize; }
-    void setPixelSize(const QSize &sz) { m_pixelSize = sz; }
-
-    int sourceLayer() const { return m_sourceLayer; }
-    void setSourceLayer(int layer) { m_sourceLayer = layer; }
-
-    int sourceLevel() const { return m_sourceLevel; }
-    void setSourceLevel(int level) { m_sourceLevel = level; }
-
-    QPoint sourceTopLeft() const { return m_sourceTopLeft; }
-    void setSourceTopLeft(const QPoint &p) { m_sourceTopLeft = p; }
-
-    int destinationLayer() const { return m_destinationLayer; }
-    void setDestinationLayer(int layer) { m_destinationLayer = layer; }
-
-    int destinationLevel() const { return m_destinationLevel; }
-    void setDestinationLevel(int level) { m_destinationLevel = level; }
-
-    QPoint destinationTopLeft() const { return m_destinationTopLeft; }
-    void setDestinationTopLeft(const QPoint &p) { m_destinationTopLeft = p; }
-
-private:
-    QSize m_pixelSize;
-    int m_sourceLayer = 0;
-    int m_sourceLevel = 0;
-    QPoint m_sourceTopLeft;
-    int m_destinationLayer = 0;
-    int m_destinationLevel = 0;
-    QPoint m_destinationTopLeft;
-};
-
-Q_DECLARE_TYPEINFO(QRhiTextureCopyDescription, Q_RELOCATABLE_TYPE);
-
-class Q_GUI_EXPORT QRhiReadbackDescription
-{
-public:
-    QRhiReadbackDescription() = default;
-    QRhiReadbackDescription(QRhiTexture *texture);
-
-    QRhiTexture *texture() const { return m_texture; }
-    void setTexture(QRhiTexture *tex) { m_texture = tex; }
-
-    int layer() const { return m_layer; }
-    void setLayer(int layer) { m_layer = layer; }
-
-    int level() const { return m_level; }
-    void setLevel(int level) { m_level = level; }
-
-private:
-    QRhiTexture *m_texture = nullptr;
-    int m_layer = 0;
-    int m_level = 0;
-};
-
-Q_DECLARE_TYPEINFO(QRhiReadbackDescription, Q_RELOCATABLE_TYPE);
-
-struct Q_GUI_EXPORT QRhiNativeHandles
-{
-};
-
-class Q_GUI_EXPORT QRhiResource
-{
-public:
-    enum Type {
-        Buffer,
-        Texture,
-        Sampler,
-        RenderBuffer,
-        RenderPassDescriptor,
-        SwapChainRenderTarget,
-        TextureRenderTarget,
-        ShaderResourceBindings,
-        GraphicsPipeline,
-        SwapChain,
-        ComputePipeline,
-        CommandBuffer
-    };
-
-    virtual ~QRhiResource();
-
-    virtual Type resourceType() const = 0;
+    virtual ~QRhiImplementation();
 
+    virtual bool create(QRhi::Flags flags) = 0;
     virtual void destroy() = 0;
 
-    void deleteLater();
+    virtual QRhiGraphicsPipeline *createGraphicsPipeline() = 0;
+    virtual QRhiComputePipeline *createComputePipeline() = 0;
+    virtual QRhiShaderResourceBindings *createShaderResourceBindings() = 0;
+    virtual QRhiBuffer *createBuffer(QRhiBuffer::Type type,
+                                     QRhiBuffer::UsageFlags usage,
+                                     quint32 size) = 0;
+    virtual QRhiRenderBuffer *createRenderBuffer(QRhiRenderBuffer::Type type,
+                                                 const QSize &pixelSize,
+                                                 int sampleCount,
+                                                 QRhiRenderBuffer::Flags flags,
+                                                 QRhiTexture::Format backingFormatHint) = 0;
+    virtual QRhiTexture *createTexture(QRhiTexture::Format format,
+                                       const QSize &pixelSize,
+                                       int depth,
+                                       int arraySize,
+                                       int sampleCount,
+                                       QRhiTexture::Flags flags) = 0;
+    virtual QRhiSampler *createSampler(QRhiSampler::Filter magFilter,
+                                       QRhiSampler::Filter minFilter,
+                                       QRhiSampler::Filter mipmapMode,
+                                       QRhiSampler:: AddressMode u,
+                                       QRhiSampler::AddressMode v,
+                                       QRhiSampler::AddressMode w) = 0;
 
-    QByteArray name() const;
-    void setName(const QByteArray &name);
+    virtual QRhiTextureRenderTarget *createTextureRenderTarget(const QRhiTextureRenderTargetDescription &desc,
+                                                               QRhiTextureRenderTarget::Flags flags) = 0;
 
-    quint64 globalResourceId() const;
+    virtual QRhiSwapChain *createSwapChain() = 0;
+    virtual QRhi::FrameOpResult beginFrame(QRhiSwapChain *swapChain, QRhi::BeginFrameFlags flags) = 0;
+    virtual QRhi::FrameOpResult endFrame(QRhiSwapChain *swapChain, QRhi::EndFrameFlags flags) = 0;
+    virtual QRhi::FrameOpResult beginOffscreenFrame(QRhiCommandBuffer **cb, QRhi::BeginFrameFlags flags) = 0;
+    virtual QRhi::FrameOpResult endOffscreenFrame(QRhi::EndFrameFlags flags) = 0;
+    virtual QRhi::FrameOpResult finish() = 0;
 
-    QRhi *rhi() const;
+    virtual void resourceUpdate(QRhiCommandBuffer *cb, QRhiResourceUpdateBatch *resourceUpdates) = 0;
 
-protected:
-    QRhiResource(QRhiImplementation *rhi);
-    Q_DISABLE_COPY(QRhiResource)
-    friend class QRhiImplementation;
-    QRhiImplementation *m_rhi = nullptr;
-    quint64 m_id;
-    QByteArray m_objectName;
-};
+    virtual void beginPass(QRhiCommandBuffer *cb,
+                           QRhiRenderTarget *rt,
+                           const QColor &colorClearValue,
+                           const QRhiDepthStencilClearValue &depthStencilClearValue,
+                           QRhiResourceUpdateBatch *resourceUpdates,
+                           QRhiCommandBuffer::BeginPassFlags flags) = 0;
+    virtual void endPass(QRhiCommandBuffer *cb, QRhiResourceUpdateBatch *resourceUpdates) = 0;
 
-class Q_GUI_EXPORT QRhiBuffer : public QRhiResource
-{
-public:
-    enum Type {
-        Immutable,
-        Static,
-        Dynamic
-    };
+    virtual void setGraphicsPipeline(QRhiCommandBuffer *cb,
+                                     QRhiGraphicsPipeline *ps) = 0;
 
-    enum UsageFlag {
-        VertexBuffer = 1 << 0,
-        IndexBuffer = 1 << 1,
-        UniformBuffer = 1 << 2,
-        StorageBuffer = 1 << 3
-    };
-    Q_DECLARE_FLAGS(UsageFlags, UsageFlag)
+    virtual void setShaderResources(QRhiCommandBuffer *cb,
+                                    QRhiShaderResourceBindings *srb,
+                                    int dynamicOffsetCount,
+                                    const QRhiCommandBuffer::DynamicOffset *dynamicOffsets) = 0;
 
-    struct NativeBuffer {
-        const void *objects[3];
-        int slotCount;
-    };
+    virtual void setVertexInput(QRhiCommandBuffer *cb,
+                                int startBinding, int bindingCount, const QRhiCommandBuffer::VertexInput *bindings,
+                                QRhiBuffer *indexBuf, quint32 indexOffset,
+                                QRhiCommandBuffer::IndexFormat indexFormat) = 0;
 
-    QRhiResource::Type resourceType() const override;
+    virtual void setViewport(QRhiCommandBuffer *cb, const QRhiViewport &viewport) = 0;
+    virtual void setScissor(QRhiCommandBuffer *cb, const QRhiScissor &scissor) = 0;
+    virtual void setBlendConstants(QRhiCommandBuffer *cb, const QColor &c) = 0;
+    virtual void setStencilRef(QRhiCommandBuffer *cb, quint32 refValue) = 0;
 
-    Type type() const { return m_type; }
-    void setType(Type t) { m_type = t; }
+    virtual void draw(QRhiCommandBuffer *cb, quint32 vertexCount,
+                      quint32 instanceCount, quint32 firstVertex, quint32 firstInstance) = 0;
+    virtual void drawIndexed(QRhiCommandBuffer *cb, quint32 indexCount,
+                             quint32 instanceCount, quint32 firstIndex,
+                             qint32 vertexOffset, quint32 firstInstance) = 0;
 
-    UsageFlags usage() const { return m_usage; }
-    void setUsage(UsageFlags u) { m_usage = u; }
+    virtual void debugMarkBegin(QRhiCommandBuffer *cb, const QByteArray &name) = 0;
+    virtual void debugMarkEnd(QRhiCommandBuffer *cb) = 0;
+    virtual void debugMarkMsg(QRhiCommandBuffer *cb, const QByteArray &msg) = 0;
 
-    quint32 size() const { return m_size; }
-    void setSize(quint32 sz) { m_size = sz; }
+    virtual void beginComputePass(QRhiCommandBuffer *cb,
+                                  QRhiResourceUpdateBatch *resourceUpdates,
+                                  QRhiCommandBuffer::BeginPassFlags flags) = 0;
+    virtual void endComputePass(QRhiCommandBuffer *cb, QRhiResourceUpdateBatch *resourceUpdates) = 0;
+    virtual void setComputePipeline(QRhiCommandBuffer *cb, QRhiComputePipeline *ps) = 0;
+    virtual void dispatch(QRhiCommandBuffer *cb, int x, int y, int z) = 0;
 
-    virtual bool create() = 0;
+    virtual const QRhiNativeHandles *nativeHandles(QRhiCommandBuffer *cb) = 0;
+    virtual void beginExternal(QRhiCommandBuffer *cb) = 0;
+    virtual void endExternal(QRhiCommandBuffer *cb) = 0;
+    virtual double lastCompletedGpuTime(QRhiCommandBuffer *cb) = 0;
 
-    virtual NativeBuffer nativeBuffer();
+    virtual QList<int> supportedSampleCounts() const = 0;
+    virtual int ubufAlignment() const = 0;
+    virtual bool isYUpInFramebuffer() const = 0;
+    virtual bool isYUpInNDC() const = 0;
+    virtual bool isClipDepthZeroToOne() const = 0;
+    virtual QMatrix4x4 clipSpaceCorrMatrix() const = 0;
+    virtual bool isTextureFormatSupported(QRhiTexture::Format format, QRhiTexture::Flags flags) const = 0;
+    virtual bool isFeatureSupported(QRhi::Feature feature) const = 0;
+    virtual int resourceLimit(QRhi::ResourceLimit limit) const = 0;
+    virtual const QRhiNativeHandles *nativeHandles() = 0;
+    virtual QRhiDriverInfo driverInfo() const = 0;
+    virtual QRhiStats statistics() = 0;
+    virtual bool makeThreadLocalNativeContextCurrent() = 0;
+    virtual void releaseCachedResources() = 0;
+    virtual bool isDeviceLost() const = 0;
 
-    virtual char *beginFullDynamicBufferUpdateForCurrentFrame();
-    virtual void endFullDynamicBufferUpdateForCurrentFrame();
+    virtual QByteArray pipelineCacheData() = 0;
+    virtual void setPipelineCacheData(const QByteArray &data) = 0;
 
-protected:
-    QRhiBuffer(QRhiImplementation *rhi, Type type_, UsageFlags usage_, quint32 size_);
-    Type m_type;
-    UsageFlags m_usage;
-    quint32 m_size;
-};
+    void prepareForCreate(QRhi *rhi, QRhi::Implementation impl, QRhi::Flags flags);
 
-Q_DECLARE_OPERATORS_FOR_FLAGS(QRhiBuffer::UsageFlags)
+    bool isCompressedFormat(QRhiTexture::Format format) const;
+    void compressedFormatInfo(QRhiTexture::Format format, const QSize &size,
+                              quint32 *bpl, quint32 *byteSize,
+                              QSize *blockDim) const;
+    void textureFormatInfo(QRhiTexture::Format format, const QSize &size,
+                           quint32 *bpl, quint32 *byteSize, quint32 *bytesPerPixel) const;
 
-class Q_GUI_EXPORT QRhiTexture : public QRhiResource
-{
-public:
-    enum Flag {
-        RenderTarget = 1 << 0,
-        CubeMap = 1 << 2,
-        MipMapped = 1 << 3,
-        sRGB = 1 << 4,
-        UsedAsTransferSource = 1 << 5,
-        UsedWithGenerateMips = 1 << 6,
-        UsedWithLoadStore = 1 << 7,
-        UsedAsCompressedAtlas = 1 << 8,
-        ExternalOES = 1 << 9,
-        ThreeDimensional = 1 << 10,
-        TextureRectangleGL = 1 << 11,
-        TextureArray = 1 << 12,
-        OneDimensional = 1 << 13
-    };
-    Q_DECLARE_FLAGS(Flags, Flag)
-
-    enum Format {
-        UnknownFormat,
-
-        RGBA8,
-        BGRA8,
-        R8,
-        RG8,
-        R16,
-        RG16,
-        RED_OR_ALPHA8,
-
-        RGBA16F,
-        RGBA32F,
-        R16F,
-        R32F,
-
-        RGB10A2,
-
-        D16,
-        D24,
-        D24S8,
-        D32F,
-
-        BC1,
-        BC2,
-        BC3,
-        BC4,
-        BC5,
-        BC6H,
-        BC7,
-
-        ETC2_RGB8,
-        ETC2_RGB8A1,
-        ETC2_RGBA8,
-
-        ASTC_4x4,
-        ASTC_5x4,
-        ASTC_5x5,
-        ASTC_6x5,
-        ASTC_6x6,
-        ASTC_8x5,
-        ASTC_8x6,
-        ASTC_8x8,
-        ASTC_10x5,
-        ASTC_10x6,
-        ASTC_10x8,
-        ASTC_10x10,
-        ASTC_12x10,
-        ASTC_12x12
-    };
-
-    struct NativeTexture {
-        quint64 object;
-        int layout;
-    };
-
-    QRhiResource::Type resourceType() const override;
-
-    Format format() const { return m_format; }
-    void setFormat(Format fmt) { m_format = fmt; }
-
-    QSize pixelSize() const { return m_pixelSize; }
-    void setPixelSize(const QSize &sz) { m_pixelSize = sz; }
-
-    int depth() const { return m_depth; }
-    void setDepth(int depth) { m_depth = depth; }
-
-    int arraySize() const { return m_arraySize; }
-    void setArraySize(int arraySize) { m_arraySize = arraySize; }
-
-    int arrayRangeStart() const { return m_arrayRangeStart; }
-    int arrayRangeLength() const { return m_arrayRangeLength; }
-    void setArrayRange(int startIndex, int count)
+    void registerResource(QRhiResource *res, bool ownsNativeResources = true)
     {
-        m_arrayRangeStart = startIndex;
-        m_arrayRangeLength = count;
+        // The ownsNativeResources is relevant for the (graphics resource) leak
+        // check in ~QRhiImplementation; when false, the registration's sole
+        // purpose is to automatically null out the resource's m_rhi pointer in
+        // case the rhi goes away first. (which should not happen in
+        // well-written applications but we try to be graceful)
+        resources.insert(res, ownsNativeResources);
     }
 
-    Flags flags() const { return m_flags; }
-    void setFlags(Flags f) { m_flags = f; }
-
-    int sampleCount() const { return m_sampleCount; }
-    void setSampleCount(int s) { m_sampleCount = s; }
-
-    virtual bool create() = 0;
-    virtual NativeTexture nativeTexture();
-    virtual bool createFrom(NativeTexture src);
-    virtual void setNativeLayout(int layout);
-
-protected:
-    QRhiTexture(QRhiImplementation *rhi, Format format_, const QSize &pixelSize_, int depth_,
-                int arraySize_, int sampleCount_, Flags flags_);
-    Format m_format;
-    QSize m_pixelSize;
-    int m_depth;
-    int m_arraySize;
-    int m_sampleCount;
-    Flags m_flags;
-    int m_arrayRangeStart = -1;
-    int m_arrayRangeLength = -1;
-};
-
-Q_DECLARE_OPERATORS_FOR_FLAGS(QRhiTexture::Flags)
-
-class Q_GUI_EXPORT QRhiSampler : public QRhiResource
-{
-public:
-    enum Filter {
-        None,
-        Nearest,
-        Linear
-    };
-
-    enum AddressMode {
-        Repeat,
-        ClampToEdge,
-        Mirror,
-    };
-
-    enum CompareOp {
-        Never,
-        Less,
-        Equal,
-        LessOrEqual,
-        Greater,
-        NotEqual,
-        GreaterOrEqual,
-        Always
-    };
-
-    QRhiResource::Type resourceType() const override;
-
-    Filter magFilter() const { return m_magFilter; }
-    void setMagFilter(Filter f) { m_magFilter = f; }
-
-    Filter minFilter() const { return m_minFilter; }
-    void setMinFilter(Filter f) { m_minFilter = f; }
-
-    Filter mipmapMode() const { return m_mipmapMode; }
-    void setMipmapMode(Filter f) { m_mipmapMode = f; }
-
-    AddressMode addressU() const { return m_addressU; }
-    void setAddressU(AddressMode mode) { m_addressU = mode; }
-
-    AddressMode addressV() const { return m_addressV; }
-    void setAddressV(AddressMode mode) { m_addressV = mode; }
-
-    AddressMode addressW() const { return m_addressW; }
-    void setAddressW(AddressMode mode) { m_addressW = mode; }
-
-    CompareOp textureCompareOp() const { return m_compareOp; }
-    void setTextureCompareOp(CompareOp op) { m_compareOp = op; }
-
-    virtual bool create() = 0;
-
-protected:
-    QRhiSampler(QRhiImplementation *rhi,
-                Filter magFilter_, Filter minFilter_, Filter mipmapMode_,
-                AddressMode u_, AddressMode v_, AddressMode w_);
-    Filter m_magFilter;
-    Filter m_minFilter;
-    Filter m_mipmapMode;
-    AddressMode m_addressU;
-    AddressMode m_addressV;
-    AddressMode m_addressW;
-    CompareOp m_compareOp;
-};
-
-class Q_GUI_EXPORT QRhiRenderBuffer : public QRhiResource
-{
-public:
-    enum Type {
-        DepthStencil,
-        Color
-    };
-
-    enum Flag {
-        UsedWithSwapChainOnly = 1 << 0
-    };
-    Q_DECLARE_FLAGS(Flags, Flag)
-
-    struct NativeRenderBuffer {
-        quint64 object;
-    };
-
-    QRhiResource::Type resourceType() const override;
-
-    Type type() const { return m_type; }
-    void setType(Type t) { m_type = t; }
-
-    QSize pixelSize() const { return m_pixelSize; }
-    void setPixelSize(const QSize &sz) { m_pixelSize = sz; }
-
-    int sampleCount() const { return m_sampleCount; }
-    void setSampleCount(int s) { m_sampleCount = s; }
-
-    Flags flags() const { return m_flags; }
-    void setFlags(Flags h) { m_flags = h; }
-
-    virtual bool create() = 0;
-    virtual bool createFrom(NativeRenderBuffer src);
-
-    virtual QRhiTexture::Format backingFormat() const = 0;
-
-protected:
-    QRhiRenderBuffer(QRhiImplementation *rhi, Type type_, const QSize &pixelSize_,
-                     int sampleCount_, Flags flags_, QRhiTexture::Format backingFormatHint_);
-    Type m_type;
-    QSize m_pixelSize;
-    int m_sampleCount;
-    Flags m_flags;
-    QRhiTexture::Format m_backingFormatHint;
-};
-
-Q_DECLARE_OPERATORS_FOR_FLAGS(QRhiRenderBuffer::Flags)
-
-class Q_GUI_EXPORT QRhiRenderPassDescriptor : public QRhiResource
-{
-public:
-    QRhiResource::Type resourceType() const override;
-
-    virtual bool isCompatible(const QRhiRenderPassDescriptor *other) const = 0;
-    virtual const QRhiNativeHandles *nativeHandles();
-
-    virtual QRhiRenderPassDescriptor *newCompatibleRenderPassDescriptor() const = 0;
-
-    virtual QVector<quint32> serializedFormat() const = 0;
-
-protected:
-    QRhiRenderPassDescriptor(QRhiImplementation *rhi);
-};
-
-class Q_GUI_EXPORT QRhiRenderTarget : public QRhiResource
-{
-public:
-    virtual QSize pixelSize() const = 0;
-    virtual float devicePixelRatio() const = 0;
-    virtual int sampleCount() const = 0;
-
-    QRhiRenderPassDescriptor *renderPassDescriptor() const { return m_renderPassDesc; }
-    void setRenderPassDescriptor(QRhiRenderPassDescriptor *desc) { m_renderPassDesc = desc; }
-
-protected:
-    QRhiRenderTarget(QRhiImplementation *rhi);
-    QRhiRenderPassDescriptor *m_renderPassDesc = nullptr;
-};
-
-class Q_GUI_EXPORT QRhiSwapChainRenderTarget : public QRhiRenderTarget
-{
-public:
-    QRhiResource::Type resourceType() const override;
-    QRhiSwapChain *swapChain() const { return m_swapchain; }
-
-protected:
-    QRhiSwapChainRenderTarget(QRhiImplementation *rhi, QRhiSwapChain *swapchain_);
-    QRhiSwapChain *m_swapchain;
-};
-
-class Q_GUI_EXPORT QRhiTextureRenderTarget : public QRhiRenderTarget
-{
-public:
-    enum Flag {
-        PreserveColorContents = 1 << 0,
-        PreserveDepthStencilContents = 1 << 1
-    };
-    Q_DECLARE_FLAGS(Flags, Flag)
-
-    QRhiResource::Type resourceType() const override;
-
-    QRhiTextureRenderTargetDescription description() const { return m_desc; }
-    void setDescription(const QRhiTextureRenderTargetDescription &desc) { m_desc = desc; }
-
-    Flags flags() const { return m_flags; }
-    void setFlags(Flags f) { m_flags = f; }
-
-    virtual QRhiRenderPassDescriptor *newCompatibleRenderPassDescriptor() = 0;
-
-    virtual bool create() = 0;
-
-protected:
-    QRhiTextureRenderTarget(QRhiImplementation *rhi, const QRhiTextureRenderTargetDescription &desc_, Flags flags_);
-    QRhiTextureRenderTargetDescription m_desc;
-    Flags m_flags;
-};
-
-Q_DECLARE_OPERATORS_FOR_FLAGS(QRhiTextureRenderTarget::Flags)
-
-class Q_GUI_EXPORT QRhiShaderResourceBindings : public QRhiResource
-{
-public:
-    QRhiResource::Type resourceType() const override;
-
-    void setBindings(std::initializer_list<QRhiShaderResourceBinding> list) { m_bindings = list; }
-
-    template<typename InputIterator>
-    void setBindings(InputIterator first, InputIterator last)
+    void unregisterResource(QRhiResource *res)
     {
-        m_bindings.clear();
-        std::copy(first, last, std::back_inserter(m_bindings));
+        resources.remove(res);
     }
 
-    const QRhiShaderResourceBinding *cbeginBindings() const { return m_bindings.cbegin(); }
-    const QRhiShaderResourceBinding *cendBindings() const { return m_bindings.cend(); }
-
-    bool isLayoutCompatible(const QRhiShaderResourceBindings *other) const;
-
-    QVector<quint32> serializedLayoutDescription() const { return m_layoutDesc; }
-
-    virtual bool create() = 0;
-
-    enum UpdateFlag {
-        BindingsAreSorted = 0x01
-    };
-    Q_DECLARE_FLAGS(UpdateFlags, UpdateFlag)
-
-    virtual void updateResources(UpdateFlags flags = {}) = 0;
-
-protected:
-    static const int BINDING_PREALLOC = 12;
-    QRhiShaderResourceBindings(QRhiImplementation *rhi);
-    QVarLengthArray<QRhiShaderResourceBinding, BINDING_PREALLOC> m_bindings;
-    size_t m_layoutDescHash = 0;
-    // Intentionally not using QVLA for m_layoutDesc: clients like Qt Quick are much
-    // better served with an implicitly shared container here, because they will likely
-    // throw this directly into structs serving as cache keys.
-    QVector<quint32> m_layoutDesc;
-    friend class QRhiImplementation;
-#ifndef QT_NO_DEBUG_STREAM
-    friend Q_GUI_EXPORT QDebug operator<<(QDebug, const QRhiShaderResourceBindings &);
-#endif
-};
-
-Q_DECLARE_OPERATORS_FOR_FLAGS(QRhiShaderResourceBindings::UpdateFlags)
-
-#ifndef QT_NO_DEBUG_STREAM
-Q_GUI_EXPORT QDebug operator<<(QDebug, const QRhiShaderResourceBindings &);
-#endif
-
-class Q_GUI_EXPORT QRhiGraphicsPipeline : public QRhiResource
-{
-public:
-    enum Flag {
-        UsesBlendConstants = 1 << 0,
-        UsesStencilRef = 1 << 1,
-        UsesScissor = 1 << 2,
-        CompileShadersWithDebugInfo = 1 << 3
-    };
-    Q_DECLARE_FLAGS(Flags, Flag)
-
-    enum Topology {
-        Triangles,
-        TriangleStrip,
-        TriangleFan,
-        Lines,
-        LineStrip,
-        Points,
-        Patches
-    };
-
-    enum CullMode {
-        None,
-        Front,
-        Back
-    };
-
-    enum FrontFace {
-        CCW,
-        CW
-    };
-
-    enum ColorMaskComponent {
-        R = 1 << 0,
-        G = 1 << 1,
-        B = 1 << 2,
-        A = 1 << 3
-    };
-    Q_DECLARE_FLAGS(ColorMask, ColorMaskComponent)
-
-    enum BlendFactor {
-        Zero,
-        One,
-        SrcColor,
-        OneMinusSrcColor,
-        DstColor,
-        OneMinusDstColor,
-        SrcAlpha,
-        OneMinusSrcAlpha,
-        DstAlpha,
-        OneMinusDstAlpha,
-        ConstantColor,
-        OneMinusConstantColor,
-        ConstantAlpha,
-        OneMinusConstantAlpha,
-        SrcAlphaSaturate,
-        Src1Color,
-        OneMinusSrc1Color,
-        Src1Alpha,
-        OneMinusSrc1Alpha
-    };
-
-    enum BlendOp {
-        Add,
-        Subtract,
-        ReverseSubtract,
-        Min,
-        Max
-    };
-
-    struct TargetBlend {
-        ColorMask colorWrite = ColorMask(0xF); // R | G | B | A
-        bool enable = false;
-        BlendFactor srcColor = One;
-        BlendFactor dstColor = OneMinusSrcAlpha;
-        BlendOp opColor = Add;
-        BlendFactor srcAlpha = One;
-        BlendFactor dstAlpha = OneMinusSrcAlpha;
-        BlendOp opAlpha = Add;
-    };
-
-    enum CompareOp {
-        Never,
-        Less,
-        Equal,
-        LessOrEqual,
-        Greater,
-        NotEqual,
-        GreaterOrEqual,
-        Always
-    };
-
-    enum StencilOp {
-        StencilZero,
-        Keep,
-        Replace,
-        IncrementAndClamp,
-        DecrementAndClamp,
-        Invert,
-        IncrementAndWrap,
-        DecrementAndWrap
-    };
-
-    struct StencilOpState {
-        StencilOp failOp = Keep;
-        StencilOp depthFailOp = Keep;
-        StencilOp passOp = Keep;
-        CompareOp compareOp = Always;
-    };
-
-    enum PolygonMode {
-        Fill,
-        Line
-    };
-
-    QRhiResource::Type resourceType() const override;
-
-    Flags flags() const { return m_flags; }
-    void setFlags(Flags f) { m_flags = f; }
-
-    Topology topology() const { return m_topology; }
-    void setTopology(Topology t) { m_topology = t; }
-
-    CullMode cullMode() const { return m_cullMode; }
-    void setCullMode(CullMode mode) { m_cullMode = mode; }
-
-    FrontFace frontFace() const { return m_frontFace; }
-    void setFrontFace(FrontFace f) { m_frontFace = f; }
-
-    void setTargetBlends(std::initializer_list<TargetBlend> list) { m_targetBlends = list; }
-    template<typename InputIterator>
-    void setTargetBlends(InputIterator first, InputIterator last)
+    void addDeleteLater(QRhiResource *res)
     {
-        m_targetBlends.clear();
-        std::copy(first, last, std::back_inserter(m_targetBlends));
+        if (inFrame)
+            pendingDeleteResources.insert(res);
+        else
+            delete res;
     }
-    const TargetBlend *cbeginTargetBlends() const { return m_targetBlends.cbegin(); }
-    const TargetBlend *cendTargetBlends() const { return m_targetBlends.cend(); }
 
-    bool hasDepthTest() const { return m_depthTest; }
-    void setDepthTest(bool enable) { m_depthTest = enable; }
-
-    bool hasDepthWrite() const { return m_depthWrite; }
-    void setDepthWrite(bool enable) { m_depthWrite = enable; }
-
-    CompareOp depthOp() const { return m_depthOp; }
-    void setDepthOp(CompareOp op) { m_depthOp = op; }
-
-    bool hasStencilTest() const { return m_stencilTest; }
-    void setStencilTest(bool enable) { m_stencilTest = enable; }
-
-    StencilOpState stencilFront() const { return m_stencilFront; }
-    void setStencilFront(const StencilOpState &state) { m_stencilFront = state; }
-
-    StencilOpState stencilBack() const { return m_stencilBack; }
-    void setStencilBack(const StencilOpState &state) { m_stencilBack = state; }
-
-    quint32 stencilReadMask() const { return m_stencilReadMask; }
-    void setStencilReadMask(quint32 mask) { m_stencilReadMask = mask; }
-
-    quint32 stencilWriteMask() const { return m_stencilWriteMask; }
-    void setStencilWriteMask(quint32 mask) { m_stencilWriteMask = mask; }
-
-    int sampleCount() const { return m_sampleCount; }
-    void setSampleCount(int s) { m_sampleCount = s; }
-
-    float lineWidth() const { return m_lineWidth; }
-    void setLineWidth(float width) { m_lineWidth = width; }
-
-    int depthBias() const { return m_depthBias; }
-    void setDepthBias(int bias) { m_depthBias = bias; }
-
-    float slopeScaledDepthBias() const { return m_slopeScaledDepthBias; }
-    void setSlopeScaledDepthBias(float bias) { m_slopeScaledDepthBias = bias; }
-
-    void setShaderStages(std::initializer_list<QRhiShaderStage> list) { m_shaderStages = list; }
-    template<typename InputIterator>
-    void setShaderStages(InputIterator first, InputIterator last)
+    void addCleanupCallback(const QRhi::CleanupCallback &callback)
     {
-        m_shaderStages.clear();
-        std::copy(first, last, std::back_inserter(m_shaderStages));
+        cleanupCallbacks.append(callback);
     }
-    const QRhiShaderStage *cbeginShaderStages() const { return m_shaderStages.cbegin(); }
-    const QRhiShaderStage *cendShaderStages() const { return m_shaderStages.cend(); }
 
-    QRhiVertexInputLayout vertexInputLayout() const { return m_vertexInputLayout; }
-    void setVertexInputLayout(const QRhiVertexInputLayout &layout) { m_vertexInputLayout = layout; }
+    bool sanityCheckGraphicsPipeline(QRhiGraphicsPipeline *ps);
+    bool sanityCheckShaderResourceBindings(QRhiShaderResourceBindings *srb);
+    void updateLayoutDesc(QRhiShaderResourceBindings *srb);
 
-    QRhiShaderResourceBindings *shaderResourceBindings() const { return m_shaderResourceBindings; }
-    void setShaderResourceBindings(QRhiShaderResourceBindings *srb) { m_shaderResourceBindings = srb; }
+    quint32 pipelineCacheRhiId() const
+    {
+        const quint32 ver = (QT_VERSION_MAJOR << 16) | (QT_VERSION_MINOR << 8) | (QT_VERSION_PATCH);
+        return (quint32(implType) << 24) | ver;
+    }
 
-    QRhiRenderPassDescriptor *renderPassDescriptor() const { return m_renderPassDesc; }
-    void setRenderPassDescriptor(QRhiRenderPassDescriptor *desc) { m_renderPassDesc = desc; }
+    void pipelineCreationStart()
+    {
+        pipelineCreationTimer.start();
+    }
 
-    int patchControlPointCount() const { return m_patchControlPointCount; }
-    void setPatchControlPointCount(int count) { m_patchControlPointCount = count; }
+    void pipelineCreationEnd()
+    {
+        accumulatedPipelineCreationTime += pipelineCreationTimer.elapsed();
+    }
 
-    PolygonMode polygonMode() const {return m_polygonMode; }
-    void setPolygonMode(PolygonMode mode) {m_polygonMode = mode; }
+    qint64 totalPipelineCreationTime() const
+    {
+        return accumulatedPipelineCreationTime;
+    }
 
-    virtual bool create() = 0;
+    QRhiVertexInputAttribute::Format shaderDescVariableFormatToVertexInputFormat(QShaderDescription::VariableType type) const;
+    quint32 byteSizePerVertexForVertexInputFormat(QRhiVertexInputAttribute::Format format) const;
 
-protected:
-    QRhiGraphicsPipeline(QRhiImplementation *rhi);
-    Flags m_flags;
-    Topology m_topology = Triangles;
-    CullMode m_cullMode = None;
-    FrontFace m_frontFace = CCW;
-    QVarLengthArray<TargetBlend, 8> m_targetBlends;
-    bool m_depthTest = false;
-    bool m_depthWrite = false;
-    CompareOp m_depthOp = Less;
-    bool m_stencilTest = false;
-    StencilOpState m_stencilFront;
-    StencilOpState m_stencilBack;
-    quint32 m_stencilReadMask = 0xFF;
-    quint32 m_stencilWriteMask = 0xFF;
-    int m_sampleCount = 1;
-    float m_lineWidth = 1.0f;
-    int m_depthBias = 0;
-    float m_slopeScaledDepthBias = 0.0f;
-    int m_patchControlPointCount = 3;
-    PolygonMode m_polygonMode = Fill;
-    QVarLengthArray<QRhiShaderStage, 4> m_shaderStages;
-    QRhiVertexInputLayout m_vertexInputLayout;
-    QRhiShaderResourceBindings *m_shaderResourceBindings = nullptr;
-    QRhiRenderPassDescriptor *m_renderPassDesc = nullptr;
-};
+    static const QRhiShaderResourceBinding::Data *shaderResourceBindingData(const QRhiShaderResourceBinding &binding)
+    {
+        return &binding.d;
+    }
 
-Q_DECLARE_OPERATORS_FOR_FLAGS(QRhiGraphicsPipeline::Flags)
-Q_DECLARE_OPERATORS_FOR_FLAGS(QRhiGraphicsPipeline::ColorMask)
-Q_DECLARE_TYPEINFO(QRhiGraphicsPipeline::TargetBlend, Q_RELOCATABLE_TYPE);
+    static QRhiShaderResourceBinding::Data *shaderResourceBindingData(QRhiShaderResourceBinding &binding)
+    {
+        return &binding.d;
+    }
 
-struct QRhiSwapChainHdrInfo
-{
-    bool isHardCodedDefaults;
-    enum LimitsType {
-        LuminanceInNits,
-        ColorComponentValue
-    };
-    LimitsType limitsType;
-    union {
-        struct {
-            float minLuminance;
-            float maxLuminance;
-        } luminanceInNits;
-        struct {
-            float maxColorComponentValue;
-        } colorComponentValue;
-    } limits;
-};
+    static bool sortedBindingLessThan(const QRhiShaderResourceBinding &a, const QRhiShaderResourceBinding &b)
+    {
+        return a.d.binding < b.d.binding;
+    }
 
-Q_DECLARE_TYPEINFO(QRhiSwapChainHdrInfo, Q_RELOCATABLE_TYPE);
+    QRhi *q;
 
-#ifndef QT_NO_DEBUG_STREAM
-Q_GUI_EXPORT QDebug operator<<(QDebug, const QRhiSwapChainHdrInfo &);
-#endif
+    static const int MAX_SHADER_CACHE_ENTRIES = 128;
 
-struct QRhiSwapChainProxyData
-{
-    void *reserved[2] = {};
-};
-
-class Q_GUI_EXPORT QRhiSwapChain : public QRhiResource
-{
-public:
-    enum Flag {
-        SurfaceHasPreMulAlpha = 1 << 0,
-        SurfaceHasNonPreMulAlpha = 1 << 1,
-        sRGB = 1 << 2,
-        UsedAsTransferSource = 1 << 3,
-        NoVSync = 1 << 4,
-        MinimalBufferCount = 1 << 5
-    };
-    Q_DECLARE_FLAGS(Flags, Flag)
-
-    enum Format {
-        SDR,
-        HDRExtendedSrgbLinear,
-        HDR10
-    };
-
-    enum StereoTargetBuffer {
-        LeftBuffer,
-        RightBuffer
-    };
-
-    QRhiResource::Type resourceType() const override;
-
-    QWindow *window() const { return m_window; }
-    void setWindow(QWindow *window) { m_window = window; }
-
-    QRhiSwapChainProxyData proxyData() const { return m_proxyData; }
-    void setProxyData(const QRhiSwapChainProxyData &d) { m_proxyData = d; }
-
-    Flags flags() const { return m_flags; }
-    void setFlags(Flags f) { m_flags = f; }
-
-    Format format() const { return m_format; }
-    void setFormat(Format f) { m_format = f; }
-
-    QRhiRenderBuffer *depthStencil() const { return m_depthStencil; }
-    void setDepthStencil(QRhiRenderBuffer *ds) { m_depthStencil = ds; }
-
-    int sampleCount() const { return m_sampleCount; }
-    void setSampleCount(int samples) { m_sampleCount = samples; }
-
-    QRhiRenderPassDescriptor *renderPassDescriptor() const { return m_renderPassDesc; }
-    void setRenderPassDescriptor(QRhiRenderPassDescriptor *desc) { m_renderPassDesc = desc; }
-
-    QSize currentPixelSize() const { return m_currentPixelSize; }
-
-    virtual QRhiCommandBuffer *currentFrameCommandBuffer() = 0;
-    virtual QRhiRenderTarget *currentFrameRenderTarget() = 0;
-    virtual QRhiRenderTarget *currentFrameRenderTarget(StereoTargetBuffer targetBuffer);
-    virtual QSize surfacePixelSize() = 0;
-    virtual bool isFormatSupported(Format f) = 0;
-    virtual QRhiRenderPassDescriptor *newCompatibleRenderPassDescriptor() = 0;
-    virtual bool createOrResize() = 0;
-    virtual QRhiSwapChainHdrInfo hdrInfo();
-
-protected:
-    QRhiSwapChain(QRhiImplementation *rhi);
-    QWindow *m_window = nullptr;
-    Flags m_flags;
-    Format m_format = SDR;
-    QRhiRenderBuffer *m_depthStencil = nullptr;
-    int m_sampleCount = 1;
-    QRhiRenderPassDescriptor *m_renderPassDesc = nullptr;
-    QSize m_currentPixelSize;
-    QRhiSwapChainProxyData m_proxyData;
-};
-
-Q_DECLARE_OPERATORS_FOR_FLAGS(QRhiSwapChain::Flags)
-
-class Q_GUI_EXPORT QRhiComputePipeline : public QRhiResource
-{
-public:
-    enum Flag {
-        CompileShadersWithDebugInfo = 1 << 0
-    };
-    Q_DECLARE_FLAGS(Flags, Flag)
-
-    QRhiResource::Type resourceType() const override;
-    virtual bool create() = 0;
-
-    Flags flags() const { return m_flags; }
-    void setFlags(Flags f) { m_flags = f; }
-
-    QRhiShaderStage shaderStage() const { return m_shaderStage; }
-    void setShaderStage(const QRhiShaderStage &stage) { m_shaderStage = stage; }
-
-    QRhiShaderResourceBindings *shaderResourceBindings() const { return m_shaderResourceBindings; }
-    void setShaderResourceBindings(QRhiShaderResourceBindings *srb) { m_shaderResourceBindings = srb; }
-
-protected:
-    QRhiComputePipeline(QRhiImplementation *rhi);
-    Flags m_flags;
-    QRhiShaderStage m_shaderStage;
-    QRhiShaderResourceBindings *m_shaderResourceBindings = nullptr;
-};
-
-Q_DECLARE_OPERATORS_FOR_FLAGS(QRhiComputePipeline::Flags)
-
-class Q_GUI_EXPORT QRhiCommandBuffer : public QRhiResource
-{
-public:
-    enum IndexFormat {
-        IndexUInt16,
-        IndexUInt32
-    };
-
-    enum BeginPassFlag {
-        ExternalContent = 0x01,
-        DoNotTrackResourcesForCompute = 0x02
-    };
-    Q_DECLARE_FLAGS(BeginPassFlags, BeginPassFlag)
-
-    QRhiResource::Type resourceType() const override;
-
-    void resourceUpdate(QRhiResourceUpdateBatch *resourceUpdates);
-
-    void beginPass(QRhiRenderTarget *rt,
-                   const QColor &colorClearValue,
-                   const QRhiDepthStencilClearValue &depthStencilClearValue,
-                   QRhiResourceUpdateBatch *resourceUpdates = nullptr,
-                   BeginPassFlags flags = {});
-    void endPass(QRhiResourceUpdateBatch *resourceUpdates = nullptr);
-
-    void setGraphicsPipeline(QRhiGraphicsPipeline *ps);
-    using DynamicOffset = QPair<int, quint32>; // binding, offset
-    void setShaderResources(QRhiShaderResourceBindings *srb = nullptr,
-                            int dynamicOffsetCount = 0,
-                            const DynamicOffset *dynamicOffsets = nullptr);
-    using VertexInput = QPair<QRhiBuffer *, quint32>; // buffer, offset
-    void setVertexInput(int startBinding, int bindingCount, const VertexInput *bindings,
-                        QRhiBuffer *indexBuf = nullptr, quint32 indexOffset = 0,
-                        IndexFormat indexFormat = IndexUInt16);
-
-    void setViewport(const QRhiViewport &viewport);
-    void setScissor(const QRhiScissor &scissor);
-    void setBlendConstants(const QColor &c);
-    void setStencilRef(quint32 refValue);
-
-    void draw(quint32 vertexCount,
-              quint32 instanceCount = 1,
-              quint32 firstVertex = 0,
-              quint32 firstInstance = 0);
-
-    void drawIndexed(quint32 indexCount,
-                     quint32 instanceCount = 1,
-                     quint32 firstIndex = 0,
-                     qint32 vertexOffset = 0,
-                     quint32 firstInstance = 0);
-
-    void debugMarkBegin(const QByteArray &name);
-    void debugMarkEnd();
-    void debugMarkMsg(const QByteArray &msg);
-
-    void beginComputePass(QRhiResourceUpdateBatch *resourceUpdates = nullptr, BeginPassFlags flags = {});
-    void endComputePass(QRhiResourceUpdateBatch *resourceUpdates = nullptr);
-    void setComputePipeline(QRhiComputePipeline *ps);
-    void dispatch(int x, int y, int z);
-
-    const QRhiNativeHandles *nativeHandles();
-    void beginExternal();
-    void endExternal();
-
-protected:
-    QRhiCommandBuffer(QRhiImplementation *rhi);
-};
-
-Q_DECLARE_OPERATORS_FOR_FLAGS(QRhiCommandBuffer::BeginPassFlags)
-
-struct Q_GUI_EXPORT QRhiReadbackResult
-{
-    std::function<void()> completed = nullptr;
-    QRhiTexture::Format format;
-    QSize pixelSize;
-    QByteArray data;
-};
-
-struct Q_GUI_EXPORT QRhiBufferReadbackResult
-{
-    std::function<void()> completed = nullptr;
-    QByteArray data;
-};
-
-class Q_GUI_EXPORT QRhiResourceUpdateBatch
-{
-public:
-    ~QRhiResourceUpdateBatch();
-
-    void release();
-
-    void merge(QRhiResourceUpdateBatch *other);
-    bool hasOptimalCapacity() const;
-
-    void updateDynamicBuffer(QRhiBuffer *buf, quint32 offset, quint32 size, const void *data);
-    void uploadStaticBuffer(QRhiBuffer *buf, quint32 offset, quint32 size, const void *data);
-    void uploadStaticBuffer(QRhiBuffer *buf, const void *data);
-    void readBackBuffer(QRhiBuffer *buf, quint32 offset, quint32 size, QRhiBufferReadbackResult *result);
-    void uploadTexture(QRhiTexture *tex, const QRhiTextureUploadDescription &desc);
-    void uploadTexture(QRhiTexture *tex, const QImage &image);
-    void copyTexture(QRhiTexture *dst, QRhiTexture *src, const QRhiTextureCopyDescription &desc = QRhiTextureCopyDescription());
-    void readBackTexture(const QRhiReadbackDescription &rb, QRhiReadbackResult *result);
-    void generateMips(QRhiTexture *tex);
+    bool debugMarkers = false;
+    int currentFrameSlot = 0; // for vk, mtl, and similar. unused by gl and d3d11.
+    bool inFrame = false;
 
 private:
-    QRhiResourceUpdateBatch(QRhiImplementation *rhi);
-    Q_DISABLE_COPY(QRhiResourceUpdateBatch)
-    QRhiResourceUpdateBatchPrivate *d;
-    friend class QRhiResourceUpdateBatchPrivate;
+    QRhi::Implementation implType;
+    QThread *implThread;
+    QVarLengthArray<QRhiResourceUpdateBatch *, 4> resUpdPool;
+    quint64 resUpdPoolMap = 0;
+    int lastResUpdIdx = -1;
+    QHash<QRhiResource *, bool> resources;
+    QSet<QRhiResource *> pendingDeleteResources;
+    QVarLengthArray<QRhi::CleanupCallback, 4> cleanupCallbacks;
+    QElapsedTimer pipelineCreationTimer;
+    qint64 accumulatedPipelineCreationTime = 0;
+
     friend class QRhi;
+    friend class QRhiResourceUpdateBatchPrivate;
 };
 
-struct Q_GUI_EXPORT QRhiDriverInfo
+enum QRhiTargetRectBoundMode
 {
-    enum DeviceType {
-        UnknownDevice,
-        IntegratedDevice,
-        DiscreteDevice,
-        ExternalDevice,
-        VirtualDevice,
-        CpuDevice
-    };
-
-    QByteArray deviceName;
-    quint64 deviceId = 0;
-    quint64 vendorId = 0;
-    DeviceType deviceType = UnknownDevice;
+    UnBounded,
+    Bounded
 };
 
-Q_DECLARE_TYPEINFO(QRhiDriverInfo, Q_RELOCATABLE_TYPE);
-
-#ifndef QT_NO_DEBUG_STREAM
-Q_GUI_EXPORT QDebug operator<<(QDebug, const QRhiDriverInfo &);
-#endif
-
-struct Q_GUI_EXPORT QRhiStats
+template<QRhiTargetRectBoundMode boundingMode, typename T, size_t N>
+bool qrhi_toTopLeftRenderTargetRect(const QSize &outputSize, const std::array<T, N> &r,
+                                    T *x, T *y, T *w, T *h)
 {
-    qint64 totalPipelineCreationTime = 0;
-    quint32 blockCount = 0;
-    quint32 allocCount = 0;
-    quint64 usedBytes = 0;
-    quint64 unusedBytes = 0;
-};
+    // x,y are bottom-left in QRhiScissor and QRhiViewport but top-left in
+    // Vulkan/Metal/D3D. Our input is an OpenGL-style scissor rect where both
+    // negative x or y, and partly or completely out of bounds rects are
+    // allowed. The only thing the input here cannot have is a negative width
+    // or height. We must handle all other input gracefully, clamping to a zero
+    // width or height rect in the worst case, and ensuring the resulting rect
+    // is inside the rendertarget's bounds because some APIs' validation/debug
+    // layers are allergic to out of bounds scissor rects.
 
-Q_DECLARE_TYPEINFO(QRhiStats, Q_RELOCATABLE_TYPE);
+    const T outputWidth = outputSize.width();
+    const T outputHeight = outputSize.height();
+    const T inputWidth = r[2];
+    const T inputHeight = r[3];
 
-#ifndef QT_NO_DEBUG_STREAM
-Q_GUI_EXPORT QDebug operator<<(QDebug, const QRhiStats &);
-#endif
+    if (inputWidth < 0 || inputHeight < 0)
+        return false;
 
-struct Q_GUI_EXPORT QRhiInitParams
+    *x = r[0];
+    *y = outputHeight - (r[1] + inputHeight);
+    *w = inputWidth;
+    *h = inputHeight;
+
+    if (boundingMode == Bounded) {
+        const T widthOffset = *x < 0 ? -*x : 0;
+        const T heightOffset = *y < 0 ? -*y : 0;
+        *w = *x < outputWidth ? qMax<T>(0, inputWidth - widthOffset) : 0;
+        *h = *y < outputHeight ? qMax<T>(0, inputHeight - heightOffset) : 0;
+
+        if (outputWidth > 0)
+            *x = qBound<T>(0, *x, outputWidth - 1);
+        if (outputHeight > 0)
+            *y = qBound<T>(0, *y, outputHeight - 1);
+
+        if (*x + *w > outputWidth)
+            *w = qMax<T>(0, outputWidth - *x);
+        if (*y + *h > outputHeight)
+            *h = qMax<T>(0, outputHeight - *y);
+    }
+    return true;
+}
+
+struct QRhiBufferDataPrivate
 {
+    Q_DISABLE_COPY_MOVE(QRhiBufferDataPrivate)
+    QRhiBufferDataPrivate() { }
+    ~QRhiBufferDataPrivate() { delete[] largeData; }
+    int ref = 1;
+    quint32 size = 0;
+    quint32 largeAlloc = 0;
+    char *largeData = nullptr;
+    static constexpr quint32 SMALL_DATA_SIZE = 1024;
+    char data[SMALL_DATA_SIZE];
 };
 
-class Q_GUI_EXPORT QRhi
+// no detach-with-contents, no atomic refcount, no shrink
+class QRhiBufferData
 {
 public:
-    enum Implementation {
-        Null,
-        Vulkan,
-        OpenGLES2,
-        D3D11,
-        Metal
-    };
-
-    enum Flag {
-        EnableProfiling = 1 << 0,
-        EnableDebugMarkers = 1 << 1,
-        PreferSoftwareRenderer = 1 << 2,
-        EnablePipelineCacheDataSave = 1 << 3
-    };
-    Q_DECLARE_FLAGS(Flags, Flag)
-
-    enum FrameOpResult {
-        FrameOpSuccess = 0,
-        FrameOpError,
-        FrameOpSwapChainOutOfDate,
-        FrameOpDeviceLost
-    };
-
-    enum Feature {
-        MultisampleTexture = 1,
-        MultisampleRenderBuffer,
-        DebugMarkers,
-        Timestamps,
-        Instancing,
-        CustomInstanceStepRate,
-        PrimitiveRestart,
-        NonDynamicUniformBuffers,
-        NonFourAlignedEffectiveIndexBufferOffset,
-        NPOTTextureRepeat,
-        RedOrAlpha8IsRed,
-        ElementIndexUint,
-        Compute,
-        WideLines,
-        VertexShaderPointSize,
-        BaseVertex,
-        BaseInstance,
-        TriangleFanTopology,
-        ReadBackNonUniformBuffer,
-        ReadBackNonBaseMipLevel,
-        TexelFetch,
-        RenderToNonBaseMipLevel,
-        IntAttributes,
-        ScreenSpaceDerivatives,
-        ReadBackAnyTextureFormat,
-        PipelineCacheDataLoadSave,
-        ImageDataStride,
-        RenderBufferImport,
-        ThreeDimensionalTextures,
-        RenderTo3DTextureSlice,
-        TextureArrays,
-        Tessellation,
-        GeometryShader,
-        TextureArrayRange,
-        NonFillPolygonMode,
-        OneDimensionalTextures,
-        OneDimensionalTextureMipmaps
-    };
-
-    enum BeginFrameFlag {
-    };
-    Q_DECLARE_FLAGS(BeginFrameFlags, BeginFrameFlag)
-
-    enum EndFrameFlag {
-        SkipPresent = 1 << 0
-    };
-    Q_DECLARE_FLAGS(EndFrameFlags, EndFrameFlag)
-
-    enum ResourceLimit {
-        TextureSizeMin = 1,
-        TextureSizeMax,
-        MaxColorAttachments,
-        FramesInFlight,
-        MaxAsyncReadbackFrames,
-        MaxThreadGroupsPerDimension,
-        MaxThreadsPerThreadGroup,
-        MaxThreadGroupX,
-        MaxThreadGroupY,
-        MaxThreadGroupZ,
-        TextureArraySizeMax,
-        MaxUniformBufferRange,
-        MaxVertexInputs,
-        MaxVertexOutputs
-    };
-
-    ~QRhi();
-
-    static QRhi *create(Implementation impl,
-                        QRhiInitParams *params,
-                        Flags flags = {},
-                        QRhiNativeHandles *importDevice = nullptr);
-    static bool probe(Implementation impl, QRhiInitParams *params);
-
-    Implementation backend() const;
-    const char *backendName() const;
-    static const char *backendName(Implementation impl);
-    QRhiDriverInfo driverInfo() const;
-    QThread *thread() const;
-
-    using CleanupCallback = std::function<void(QRhi *)>;
-    void addCleanupCallback(const CleanupCallback &callback);
-    void runCleanup();
-
-    using GpuFrameTimeCallback = std::function<void(float t)>;
-    void addGpuFrameTimeCallback(const GpuFrameTimeCallback &callback);
-
-    QRhiGraphicsPipeline *newGraphicsPipeline();
-    QRhiComputePipeline *newComputePipeline();
-    QRhiShaderResourceBindings *newShaderResourceBindings();
-
-    QRhiBuffer *newBuffer(QRhiBuffer::Type type,
-                          QRhiBuffer::UsageFlags usage,
-                          quint32 size);
-
-    QRhiRenderBuffer *newRenderBuffer(QRhiRenderBuffer::Type type,
-                                      const QSize &pixelSize,
-                                      int sampleCount = 1,
-                                      QRhiRenderBuffer::Flags flags = {},
-                                      QRhiTexture::Format backingFormatHint = QRhiTexture::UnknownFormat);
-
-    QRhiTexture *newTexture(QRhiTexture::Format format,
-                            const QSize &pixelSize,
-                            int sampleCount = 1,
-                            QRhiTexture::Flags flags = {});
-
-    QRhiTexture *newTexture(QRhiTexture::Format format,
-                            int width, int height, int depth,
-                            int sampleCount = 1,
-                            QRhiTexture::Flags flags = {});
-
-    QRhiTexture *newTextureArray(QRhiTexture::Format format,
-                                 int arraySize,
-                                 const QSize &pixelSize,
-                                 int sampleCount = 1,
-                                 QRhiTexture::Flags flags = {});
-
-    QRhiSampler *newSampler(QRhiSampler::Filter magFilter,
-                            QRhiSampler::Filter minFilter,
-                            QRhiSampler::Filter mipmapMode,
-                            QRhiSampler::AddressMode addressU,
-                            QRhiSampler::AddressMode addressV,
-                            QRhiSampler::AddressMode addressW = QRhiSampler::Repeat);
-
-    QRhiTextureRenderTarget *newTextureRenderTarget(const QRhiTextureRenderTargetDescription &desc,
-                                                    QRhiTextureRenderTarget::Flags flags = {});
-
-    QRhiSwapChain *newSwapChain();
-    FrameOpResult beginFrame(QRhiSwapChain *swapChain, BeginFrameFlags flags = {});
-    FrameOpResult endFrame(QRhiSwapChain *swapChain, EndFrameFlags flags = {});
-    bool isRecordingFrame() const;
-    int currentFrameSlot() const;
-
-    FrameOpResult beginOffscreenFrame(QRhiCommandBuffer **cb, BeginFrameFlags flags = {});
-    FrameOpResult endOffscreenFrame(EndFrameFlags flags = {});
-
-    QRhi::FrameOpResult finish();
-
-    QRhiResourceUpdateBatch *nextResourceUpdateBatch();
-
-    QList<int> supportedSampleCounts() const;
-
-    int ubufAlignment() const;
-    int ubufAligned(int v) const;
-
-    int mipLevelsForSize(const QSize &size) const;
-    QSize sizeForMipLevel(int mipLevel, const QSize &baseLevelSize) const;
-
-    bool isYUpInFramebuffer() const;
-    bool isYUpInNDC() const;
-    bool isClipDepthZeroToOne() const;
-
-    QMatrix4x4 clipSpaceCorrMatrix() const;
-
-    bool isTextureFormatSupported(QRhiTexture::Format format, QRhiTexture::Flags flags = {}) const;
-    bool isFeatureSupported(QRhi::Feature feature) const;
-    int resourceLimit(ResourceLimit limit) const;
-
-    const QRhiNativeHandles *nativeHandles();
-    bool makeThreadLocalNativeContextCurrent();
-
-    static const int MAX_MIP_LEVELS = 16; // a width and/or height of 65536 should be enough for everyone
-
-    void releaseCachedResources();
-
-    bool isDeviceLost() const;
-
-    QByteArray pipelineCacheData();
-    void setPipelineCacheData(const QByteArray &data);
-
-    QRhiStats statistics() const;
-
-    static QRhiSwapChainProxyData updateSwapChainProxyData(Implementation impl, QWindow *window);
-
-protected:
-    QRhi();
-
+    QRhiBufferData() = default;
+    ~QRhiBufferData()
+    {
+        if (d && !--d->ref)
+            delete d;
+    }
+    QRhiBufferData(const QRhiBufferData &other)
+        : d(other.d)
+    {
+        if (d)
+            d->ref += 1;
+    }
+    QRhiBufferData &operator=(const QRhiBufferData &other)
+    {
+        if (d == other.d)
+            return *this;
+        if (other.d)
+            other.d->ref += 1;
+        if (d && !--d->ref)
+            delete d;
+        d = other.d;
+        return *this;
+    }
+    const char *constData() const
+    {
+        return d->size <= QRhiBufferDataPrivate::SMALL_DATA_SIZE ? d->data : d->largeData;
+    }
+    quint32 size() const
+    {
+        return d->size;
+    }
+    void assign(const char *s, quint32 size)
+    {
+        if (!d) {
+            d = new QRhiBufferDataPrivate;
+        } else if (d->ref != 1) {
+            d->ref -= 1;
+            d = new QRhiBufferDataPrivate;
+        }
+        d->size = size;
+        if (size <= QRhiBufferDataPrivate::SMALL_DATA_SIZE) {
+            memcpy(d->data, s, size);
+        } else {
+            if (d->largeAlloc < size) {
+                delete[] d->largeData;
+                d->largeAlloc = size;
+                d->largeData = new char[size];
+            }
+            memcpy(d->largeData, s, size);
+        }
+    }
 private:
-    Q_DISABLE_COPY(QRhi)
-    QRhiImplementation *d = nullptr;
+    QRhiBufferDataPrivate *d = nullptr;
 };
 
-Q_DECLARE_OPERATORS_FOR_FLAGS(QRhi::Flags)
-Q_DECLARE_OPERATORS_FOR_FLAGS(QRhi::BeginFrameFlags)
-Q_DECLARE_OPERATORS_FOR_FLAGS(QRhi::EndFrameFlags)
+Q_DECLARE_TYPEINFO(QRhiBufferData, Q_RELOCATABLE_TYPE);
+
+class QRhiResourceUpdateBatchPrivate
+{
+public:
+    struct BufferOp {
+        enum Type {
+            DynamicUpdate,
+            StaticUpload,
+            Read
+        };
+        Type type;
+        QRhiBuffer *buf;
+        quint32 offset;
+        QRhiBufferData data;
+        quint32 readSize;
+        QRhiReadbackResult *result;
+
+        static BufferOp dynamicUpdate(QRhiBuffer *buf, quint32 offset, quint32 size, const void *data)
+        {
+            BufferOp op = {};
+            op.type = DynamicUpdate;
+            op.buf = buf;
+            op.offset = offset;
+            const int effectiveSize = size ? size : buf->size();
+            op.data.assign(reinterpret_cast<const char *>(data), effectiveSize);
+            return op;
+        }
+
+        static void changeToDynamicUpdate(BufferOp *op, QRhiBuffer *buf, quint32 offset, quint32 size, const void *data)
+        {
+            op->type = DynamicUpdate;
+            op->buf = buf;
+            op->offset = offset;
+            const int effectiveSize = size ? size : buf->size();
+            op->data.assign(reinterpret_cast<const char *>(data), effectiveSize);
+        }
+
+        static BufferOp staticUpload(QRhiBuffer *buf, quint32 offset, quint32 size, const void *data)
+        {
+            BufferOp op = {};
+            op.type = StaticUpload;
+            op.buf = buf;
+            op.offset = offset;
+            const int effectiveSize = size ? size : buf->size();
+            op.data.assign(reinterpret_cast<const char *>(data), effectiveSize);
+            return op;
+        }
+
+        static void changeToStaticUpload(BufferOp *op, QRhiBuffer *buf, quint32 offset, quint32 size, const void *data)
+        {
+            op->type = StaticUpload;
+            op->buf = buf;
+            op->offset = offset;
+            const int effectiveSize = size ? size : buf->size();
+            op->data.assign(reinterpret_cast<const char *>(data), effectiveSize);
+        }
+
+        static BufferOp read(QRhiBuffer *buf, quint32 offset, quint32 size, QRhiReadbackResult *result)
+        {
+            BufferOp op = {};
+            op.type = Read;
+            op.buf = buf;
+            op.offset = offset;
+            op.readSize = size;
+            op.result = result;
+            return op;
+        }
+    };
+
+    struct TextureOp {
+        enum Type {
+            Upload,
+            Copy,
+            Read,
+            GenMips
+        };
+        Type type;
+        QRhiTexture *dst;
+        // Specifying multiple uploads for a subresource must be supported.
+        // In the backend this can then end up, where applicable, as a
+        // single, batched copy operation with only one set of barriers.
+        // This helps when doing for example glyph cache fills.
+        using MipLevelUploadList = std::array<QVector<QRhiTextureSubresourceUploadDescription>, QRhi::MAX_MIP_LEVELS>;
+        QVarLengthArray<MipLevelUploadList, 6> subresDesc;
+        QRhiTexture *src;
+        QRhiTextureCopyDescription desc;
+        QRhiReadbackDescription rb;
+        QRhiReadbackResult *result;
+
+        static TextureOp upload(QRhiTexture *tex, const QRhiTextureUploadDescription &desc)
+        {
+            TextureOp op = {};
+            op.type = Upload;
+            op.dst = tex;
+            int maxLayer = -1;
+            for (auto it = desc.cbeginEntries(), itEnd = desc.cendEntries(); it != itEnd; ++it) {
+                if (it->layer() > maxLayer)
+                    maxLayer = it->layer();
+            }
+            op.subresDesc.resize(maxLayer + 1);
+            for (auto it = desc.cbeginEntries(), itEnd = desc.cendEntries(); it != itEnd; ++it)
+                op.subresDesc[it->layer()][it->level()].append(it->description());
+            return op;
+        }
+
+        static TextureOp copy(QRhiTexture *dst, QRhiTexture *src, const QRhiTextureCopyDescription &desc)
+        {
+            TextureOp op = {};
+            op.type = Copy;
+            op.dst = dst;
+            op.src = src;
+            op.desc = desc;
+            return op;
+        }
+
+        static TextureOp read(const QRhiReadbackDescription &rb, QRhiReadbackResult *result)
+        {
+            TextureOp op = {};
+            op.type = Read;
+            op.rb = rb;
+            op.result = result;
+            return op;
+        }
+
+        static TextureOp genMips(QRhiTexture *tex)
+        {
+            TextureOp op = {};
+            op.type = GenMips;
+            op.dst = tex;
+            return op;
+        }
+    };
+
+    int activeBufferOpCount = 0; // this is the real number of used elements in bufferOps, not bufferOps.count()
+    static const int BUFFER_OPS_STATIC_ALLOC = 1024;
+    QVarLengthArray<BufferOp, BUFFER_OPS_STATIC_ALLOC> bufferOps;
+
+    int activeTextureOpCount = 0; // this is the real number of used elements in textureOps, not textureOps.count()
+    static const int TEXTURE_OPS_STATIC_ALLOC = 256;
+    QVarLengthArray<TextureOp, TEXTURE_OPS_STATIC_ALLOC> textureOps;
+
+    QRhiResourceUpdateBatch *q = nullptr;
+    QRhiImplementation *rhi = nullptr;
+    int poolIndex = -1;
+
+    void free();
+    void merge(QRhiResourceUpdateBatchPrivate *other);
+    bool hasOptimalCapacity() const;
+    void trimOpLists();
+
+    static QRhiResourceUpdateBatchPrivate *get(QRhiResourceUpdateBatch *b) { return b->d; }
+};
+
+template<typename T>
+struct QRhiBatchedBindings
+{
+    void feed(int binding, T resource) { // binding must be strictly increasing
+        if (curBinding == -1 || binding > curBinding + 1) {
+            finish();
+            curBatch.startBinding = binding;
+            curBatch.resources.clear();
+            curBatch.resources.append(resource);
+        } else {
+            Q_ASSERT(binding == curBinding + 1);
+            curBatch.resources.append(resource);
+        }
+        curBinding = binding;
+    }
+
+    bool finish() {
+        if (!curBatch.resources.isEmpty())
+            batches.append(curBatch);
+        return !batches.isEmpty();
+    }
+
+    void clear() {
+        batches.clear();
+        curBatch.resources.clear();
+        curBinding = -1;
+    }
+
+    struct Batch {
+        uint startBinding;
+        QVarLengthArray<T, 4> resources;
+
+        bool operator==(const Batch &other) const
+        {
+            return startBinding == other.startBinding && resources == other.resources;
+        }
+
+        bool operator!=(const Batch &other) const
+        {
+            return !operator==(other);
+        }
+    };
+
+    QVarLengthArray<Batch, 4> batches; // sorted by startBinding
+
+    bool operator==(const QRhiBatchedBindings<T> &other) const
+    {
+        return batches == other.batches;
+    }
+
+    bool operator!=(const QRhiBatchedBindings<T> &other) const
+    {
+        return !operator==(other);
+    }
+
+private:
+    Batch curBatch;
+    int curBinding = -1;
+};
+
+class QRhiGlobalObjectIdGenerator
+{
+public:
+#ifdef Q_ATOMIC_INT64_IS_SUPPORTED
+    using Type = quint64;
+#else
+    using Type = quint32;
+#endif
+    static Type newId();
+};
+
+class QRhiPassResourceTracker
+{
+public:
+    bool isEmpty() const;
+    void reset();
+
+    struct UsageState {
+        int layout;
+        int access;
+        int stage;
+    };
+
+    enum BufferStage {
+        BufVertexInputStage,
+        BufVertexStage,
+        BufTCStage,
+        BufTEStage,
+        BufFragmentStage,
+        BufComputeStage,
+        BufGeometryStage
+    };
+
+    enum BufferAccess {
+        BufVertexInput,
+        BufIndexRead,
+        BufUniformRead,
+        BufStorageLoad,
+        BufStorageStore,
+        BufStorageLoadStore
+    };
+
+    void registerBuffer(QRhiBuffer *buf, int slot, BufferAccess *access, BufferStage *stage,
+                        const UsageState &state);
+
+    enum TextureStage {
+        TexVertexStage,
+        TexTCStage,
+        TexTEStage,
+        TexFragmentStage,
+        TexColorOutputStage,
+        TexDepthOutputStage,
+        TexComputeStage,
+        TexGeometryStage
+    };
+
+    enum TextureAccess {
+        TexSample,
+        TexColorOutput,
+        TexDepthOutput,
+        TexStorageLoad,
+        TexStorageStore,
+        TexStorageLoadStore
+    };
+
+    void registerTexture(QRhiTexture *tex, TextureAccess *access, TextureStage *stage,
+                         const UsageState &state);
+
+    struct Buffer {
+        int slot;
+        BufferAccess access;
+        BufferStage stage;
+        UsageState stateAtPassBegin;
+    };
+
+    using BufferIterator = QHash<QRhiBuffer *, Buffer>::const_iterator;
+    BufferIterator cbeginBuffers() const { return m_buffers.cbegin(); }
+    BufferIterator cendBuffers() const { return m_buffers.cend(); }
+
+    struct Texture {
+        TextureAccess access;
+        TextureStage stage;
+        UsageState stateAtPassBegin;
+    };
+
+    using TextureIterator = QHash<QRhiTexture *, Texture>::const_iterator;
+    TextureIterator cbeginTextures() const { return m_textures.cbegin(); }
+    TextureIterator cendTextures() const { return m_textures.cend(); }
+
+    static BufferStage toPassTrackerBufferStage(QRhiShaderResourceBinding::StageFlags stages);
+    static TextureStage toPassTrackerTextureStage(QRhiShaderResourceBinding::StageFlags stages);
+
+private:
+    QHash<QRhiBuffer *, Buffer> m_buffers;
+    QHash<QRhiTexture *, Texture> m_textures;
+};
+
+Q_DECLARE_TYPEINFO(QRhiPassResourceTracker::Buffer, Q_RELOCATABLE_TYPE);
+Q_DECLARE_TYPEINFO(QRhiPassResourceTracker::Texture, Q_RELOCATABLE_TYPE);
+
+template<typename T, int GROW = 1024>
+class QRhiBackendCommandList
+{
+public:
+    QRhiBackendCommandList() = default;
+    ~QRhiBackendCommandList() { delete[] v; }
+    inline void reset() { p = 0; }
+    inline bool isEmpty() const { return p == 0; }
+    inline T &get() {
+        if (p == a) {
+            a += GROW;
+            T *nv = new T[a];
+            if (v) {
+                memcpy(nv, v, p * sizeof(T));
+                delete[] v;
+            }
+            v = nv;
+        }
+        return v[p++];
+    }
+    inline void unget() { --p; }
+    inline T *cbegin() const { return v; }
+    inline T *cend() const { return v + p; }
+    inline T *begin() { return v; }
+    inline T *end() { return v + p; }
+private:
+    Q_DISABLE_COPY(QRhiBackendCommandList)
+    T *v = nullptr;
+    int a = 0;
+    int p = 0;
+};
+
+struct QRhiRenderTargetAttachmentTracker
+{
+    struct ResId { quint64 id; uint generation; };
+    using ResIdList = QVarLengthArray<ResId, 8 * 2 + 1>; // color, resolve, ds
+
+    template<typename TexType, typename RenderBufferType>
+    static void updateResIdList(const QRhiTextureRenderTargetDescription &desc, ResIdList *dst);
+
+    template<typename TexType, typename RenderBufferType>
+    static bool isUpToDate(const QRhiTextureRenderTargetDescription &desc, const ResIdList &currentResIdList);
+};
+
+inline bool operator==(const QRhiRenderTargetAttachmentTracker::ResId &a, const QRhiRenderTargetAttachmentTracker::ResId &b)
+{
+    return a.id == b.id && a.generation == b.generation;
+}
+
+inline bool operator!=(const QRhiRenderTargetAttachmentTracker::ResId &a, const QRhiRenderTargetAttachmentTracker::ResId &b)
+{
+    return !(a == b);
+}
+
+template<typename TexType, typename RenderBufferType>
+void QRhiRenderTargetAttachmentTracker::updateResIdList(const QRhiTextureRenderTargetDescription &desc, ResIdList *dst)
+{
+    const bool hasDepthStencil = desc.depthStencilBuffer() || desc.depthTexture();
+    dst->resize(desc.colorAttachmentCount() * 2 + (hasDepthStencil ? 1 : 0));
+    int n = 0;
+    for (auto it = desc.cbeginColorAttachments(), itEnd = desc.cendColorAttachments(); it != itEnd; ++it, ++n) {
+        const QRhiColorAttachment &colorAtt(*it);
+        if (colorAtt.texture()) {
+            TexType *texD = QRHI_RES(TexType, colorAtt.texture());
+            (*dst)[n] = { texD->globalResourceId(), texD->generation };
+        } else if (colorAtt.renderBuffer()) {
+            RenderBufferType *rbD = QRHI_RES(RenderBufferType, colorAtt.renderBuffer());
+            (*dst)[n] = { rbD->globalResourceId(), rbD->generation };
+        } else {
+            (*dst)[n] = { 0, 0 };
+        }
+        ++n;
+        if (colorAtt.resolveTexture()) {
+            TexType *texD = QRHI_RES(TexType, colorAtt.resolveTexture());
+            (*dst)[n] = { texD->globalResourceId(), texD->generation };
+        } else {
+            (*dst)[n] = { 0, 0 };
+        }
+    }
+    if (hasDepthStencil) {
+        if (desc.depthTexture()) {
+            TexType *depthTexD = QRHI_RES(TexType, desc.depthTexture());
+            (*dst)[n] = { depthTexD->globalResourceId(), depthTexD->generation };
+        } else if (desc.depthStencilBuffer()) {
+            RenderBufferType *depthRbD = QRHI_RES(RenderBufferType, desc.depthStencilBuffer());
+            (*dst)[n] = { depthRbD->globalResourceId(), depthRbD->generation };
+        } else {
+            (*dst)[n] = { 0, 0 };
+        }
+    }
+}
+
+template<typename TexType, typename RenderBufferType>
+bool QRhiRenderTargetAttachmentTracker::isUpToDate(const QRhiTextureRenderTargetDescription &desc, const ResIdList &currentResIdList)
+{
+    // Just as setShaderResources() recognizes if an srb's referenced
+    // resources have been rebuilt (got a create() since the srb's
+    // create()), we should do the same for the textures and renderbuffers
+    // referenced from the rendertarget. It is not uncommon that a texture
+    // or ds buffer gets resized due to following a window size in some
+    // form, which involves a create() on them. It is then nice if the
+    // render target auto-rebuilds in beginPass().
+
+    ResIdList resIdList;
+    updateResIdList<TexType, RenderBufferType>(desc, &resIdList);
+    return resIdList == currentResIdList;
+}
+
+template<typename T>
+inline T *qrhi_objectFromProxyData(QRhiSwapChainProxyData *pd, QWindow *window, QRhi::Implementation impl, uint objectIndex)
+{
+    Q_ASSERT(objectIndex < std::size(pd->reserved));
+    if (!pd->reserved[objectIndex]) // // was not set, no other choice, do it here, whatever thread this is
+        *pd = QRhi::updateSwapChainProxyData(impl, window);
+    return static_cast<T *>(pd->reserved[objectIndex]);
+}
 
 QT_END_NAMESPACE
 
diff --git a/src/gui/rhi/qrhi_p_p.h b/src/gui/rhi/qrhi_p_p.h
deleted file mode 100644
index da29a24d..00000000
--- a/src/gui/rhi/qrhi_p_p.h
+++ /dev/null
@@ -1,802 +0,0 @@
-// Copyright (C) 2019 The Qt Company Ltd.
-// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
-
-#ifndef QRHI_P_H
-#define QRHI_P_H
-
-//
-//  W A R N I N G
-//  -------------
-//
-// This file is not part of the Qt API.  It exists purely as an
-// implementation detail.  This header file may change from version to
-// version without notice, or even be removed.
-//
-// We mean it.
-//
-
-#include "qrhi_p.h"
-#include <QBitArray>
-#include <QAtomicInt>
-#include <QElapsedTimer>
-#include <QLoggingCategory>
-#include <QtCore/qset.h>
-#include <QtCore/qvarlengtharray.h>
-
-QT_BEGIN_NAMESPACE
-
-#define QRHI_RES(t, x) static_cast<t *>(x)
-#define QRHI_RES_RHI(t) t *rhiD = static_cast<t *>(m_rhi)
-
-Q_DECLARE_LOGGING_CATEGORY(QRHI_LOG_INFO)
-
-class QRhiImplementation
-{
-public:
-    virtual ~QRhiImplementation();
-
-    virtual bool create(QRhi::Flags flags) = 0;
-    virtual void destroy() = 0;
-
-    virtual QRhiGraphicsPipeline *createGraphicsPipeline() = 0;
-    virtual QRhiComputePipeline *createComputePipeline() = 0;
-    virtual QRhiShaderResourceBindings *createShaderResourceBindings() = 0;
-    virtual QRhiBuffer *createBuffer(QRhiBuffer::Type type,
-                                     QRhiBuffer::UsageFlags usage,
-                                     quint32 size) = 0;
-    virtual QRhiRenderBuffer *createRenderBuffer(QRhiRenderBuffer::Type type,
-                                                 const QSize &pixelSize,
-                                                 int sampleCount,
-                                                 QRhiRenderBuffer::Flags flags,
-                                                 QRhiTexture::Format backingFormatHint) = 0;
-    virtual QRhiTexture *createTexture(QRhiTexture::Format format,
-                                       const QSize &pixelSize,
-                                       int depth,
-                                       int arraySize,
-                                       int sampleCount,
-                                       QRhiTexture::Flags flags) = 0;
-    virtual QRhiSampler *createSampler(QRhiSampler::Filter magFilter,
-                                       QRhiSampler::Filter minFilter,
-                                       QRhiSampler::Filter mipmapMode,
-                                       QRhiSampler:: AddressMode u,
-                                       QRhiSampler::AddressMode v,
-                                       QRhiSampler::AddressMode w) = 0;
-
-    virtual QRhiTextureRenderTarget *createTextureRenderTarget(const QRhiTextureRenderTargetDescription &desc,
-                                                               QRhiTextureRenderTarget::Flags flags) = 0;
-
-    virtual QRhiSwapChain *createSwapChain() = 0;
-    virtual QRhi::FrameOpResult beginFrame(QRhiSwapChain *swapChain, QRhi::BeginFrameFlags flags) = 0;
-    virtual QRhi::FrameOpResult endFrame(QRhiSwapChain *swapChain, QRhi::EndFrameFlags flags) = 0;
-    virtual QRhi::FrameOpResult beginOffscreenFrame(QRhiCommandBuffer **cb, QRhi::BeginFrameFlags flags) = 0;
-    virtual QRhi::FrameOpResult endOffscreenFrame(QRhi::EndFrameFlags flags) = 0;
-    virtual QRhi::FrameOpResult finish() = 0;
-
-    virtual void resourceUpdate(QRhiCommandBuffer *cb, QRhiResourceUpdateBatch *resourceUpdates) = 0;
-
-    virtual void beginPass(QRhiCommandBuffer *cb,
-                           QRhiRenderTarget *rt,
-                           const QColor &colorClearValue,
-                           const QRhiDepthStencilClearValue &depthStencilClearValue,
-                           QRhiResourceUpdateBatch *resourceUpdates,
-                           QRhiCommandBuffer::BeginPassFlags flags) = 0;
-    virtual void endPass(QRhiCommandBuffer *cb, QRhiResourceUpdateBatch *resourceUpdates) = 0;
-
-    virtual void setGraphicsPipeline(QRhiCommandBuffer *cb,
-                                     QRhiGraphicsPipeline *ps) = 0;
-
-    virtual void setShaderResources(QRhiCommandBuffer *cb,
-                                    QRhiShaderResourceBindings *srb,
-                                    int dynamicOffsetCount,
-                                    const QRhiCommandBuffer::DynamicOffset *dynamicOffsets) = 0;
-
-    virtual void setVertexInput(QRhiCommandBuffer *cb,
-                                int startBinding, int bindingCount, const QRhiCommandBuffer::VertexInput *bindings,
-                                QRhiBuffer *indexBuf, quint32 indexOffset,
-                                QRhiCommandBuffer::IndexFormat indexFormat) = 0;
-
-    virtual void setViewport(QRhiCommandBuffer *cb, const QRhiViewport &viewport) = 0;
-    virtual void setScissor(QRhiCommandBuffer *cb, const QRhiScissor &scissor) = 0;
-    virtual void setBlendConstants(QRhiCommandBuffer *cb, const QColor &c) = 0;
-    virtual void setStencilRef(QRhiCommandBuffer *cb, quint32 refValue) = 0;
-
-    virtual void draw(QRhiCommandBuffer *cb, quint32 vertexCount,
-                      quint32 instanceCount, quint32 firstVertex, quint32 firstInstance) = 0;
-    virtual void drawIndexed(QRhiCommandBuffer *cb, quint32 indexCount,
-                             quint32 instanceCount, quint32 firstIndex,
-                             qint32 vertexOffset, quint32 firstInstance) = 0;
-
-    virtual void debugMarkBegin(QRhiCommandBuffer *cb, const QByteArray &name) = 0;
-    virtual void debugMarkEnd(QRhiCommandBuffer *cb) = 0;
-    virtual void debugMarkMsg(QRhiCommandBuffer *cb, const QByteArray &msg) = 0;
-
-    virtual void beginComputePass(QRhiCommandBuffer *cb,
-                                  QRhiResourceUpdateBatch *resourceUpdates,
-                                  QRhiCommandBuffer::BeginPassFlags flags) = 0;
-    virtual void endComputePass(QRhiCommandBuffer *cb, QRhiResourceUpdateBatch *resourceUpdates) = 0;
-    virtual void setComputePipeline(QRhiCommandBuffer *cb, QRhiComputePipeline *ps) = 0;
-    virtual void dispatch(QRhiCommandBuffer *cb, int x, int y, int z) = 0;
-
-    virtual const QRhiNativeHandles *nativeHandles(QRhiCommandBuffer *cb) = 0;
-    virtual void beginExternal(QRhiCommandBuffer *cb) = 0;
-    virtual void endExternal(QRhiCommandBuffer *cb) = 0;
-
-    virtual QList<int> supportedSampleCounts() const = 0;
-    virtual int ubufAlignment() const = 0;
-    virtual bool isYUpInFramebuffer() const = 0;
-    virtual bool isYUpInNDC() const = 0;
-    virtual bool isClipDepthZeroToOne() const = 0;
-    virtual QMatrix4x4 clipSpaceCorrMatrix() const = 0;
-    virtual bool isTextureFormatSupported(QRhiTexture::Format format, QRhiTexture::Flags flags) const = 0;
-    virtual bool isFeatureSupported(QRhi::Feature feature) const = 0;
-    virtual int resourceLimit(QRhi::ResourceLimit limit) const = 0;
-    virtual const QRhiNativeHandles *nativeHandles() = 0;
-    virtual QRhiDriverInfo driverInfo() const = 0;
-    virtual QRhiStats statistics() = 0;
-    virtual bool makeThreadLocalNativeContextCurrent() = 0;
-    virtual void releaseCachedResources() = 0;
-    virtual bool isDeviceLost() const = 0;
-
-    virtual QByteArray pipelineCacheData() = 0;
-    virtual void setPipelineCacheData(const QByteArray &data) = 0;
-
-    bool isCompressedFormat(QRhiTexture::Format format) const;
-    void compressedFormatInfo(QRhiTexture::Format format, const QSize &size,
-                              quint32 *bpl, quint32 *byteSize,
-                              QSize *blockDim) const;
-    void textureFormatInfo(QRhiTexture::Format format, const QSize &size,
-                           quint32 *bpl, quint32 *byteSize, quint32 *bytesPerPixel) const;
-
-    void registerResource(QRhiResource *res, bool ownsNativeResources = true)
-    {
-        // The ownsNativeResources is relevant for the (graphics resource) leak
-        // check in ~QRhiImplementation; when false, the registration's sole
-        // purpose is to automatically null out the resource's m_rhi pointer in
-        // case the rhi goes away first. (which should not happen in
-        // well-written applications but we try to be graceful)
-        resources.insert(res, ownsNativeResources);
-    }
-
-    void unregisterResource(QRhiResource *res)
-    {
-        resources.remove(res);
-    }
-
-    void addDeleteLater(QRhiResource *res)
-    {
-        if (inFrame)
-            pendingDeleteResources.insert(res);
-        else
-            delete res;
-    }
-
-    void addCleanupCallback(const QRhi::CleanupCallback &callback)
-    {
-        cleanupCallbacks.append(callback);
-    }
-
-    void addGpuFrameTimeCallback(const QRhi::GpuFrameTimeCallback &callback)
-    {
-        gpuFrameTimeCallbacks.append(callback);
-    }
-
-    bool hasGpuFrameTimeCallback() const
-    {
-        return !gpuFrameTimeCallbacks.isEmpty();
-    }
-
-    void runGpuFrameTimeCallbacks(float t)
-    {
-        for (const QRhi::GpuFrameTimeCallback &f : std::as_const(gpuFrameTimeCallbacks))
-            f(t);
-    }
-
-    bool sanityCheckGraphicsPipeline(QRhiGraphicsPipeline *ps);
-    bool sanityCheckShaderResourceBindings(QRhiShaderResourceBindings *srb);
-    void updateLayoutDesc(QRhiShaderResourceBindings *srb);
-
-    quint32 pipelineCacheRhiId() const
-    {
-        const quint32 ver = (QT_VERSION_MAJOR << 16) | (QT_VERSION_MINOR << 8) | (QT_VERSION_PATCH);
-        return (quint32(implType) << 24) | ver;
-    }
-
-    void pipelineCreationStart()
-    {
-        pipelineCreationTimer.start();
-    }
-
-    void pipelineCreationEnd()
-    {
-        accumulatedPipelineCreationTime += pipelineCreationTimer.elapsed();
-    }
-
-    qint64 totalPipelineCreationTime() const
-    {
-        return accumulatedPipelineCreationTime;
-    }
-
-    QRhiVertexInputAttribute::Format shaderDescVariableFormatToVertexInputFormat(QShaderDescription::VariableType type) const;
-    quint32 byteSizePerVertexForVertexInputFormat(QRhiVertexInputAttribute::Format format) const;
-
-    QRhi *q;
-
-    static const int MAX_SHADER_CACHE_ENTRIES = 128;
-
-    bool debugMarkers = false;
-    int currentFrameSlot = 0; // for vk, mtl, and similar. unused by gl and d3d11.
-    bool inFrame = false;
-
-private:
-    QRhi::Implementation implType;
-    QThread *implThread;
-    QVarLengthArray<QRhiResourceUpdateBatch *, 4> resUpdPool;
-    quint64 resUpdPoolMap = 0;
-    int lastResUpdIdx = -1;
-    QHash<QRhiResource *, bool> resources;
-    QSet<QRhiResource *> pendingDeleteResources;
-    QVarLengthArray<QRhi::CleanupCallback, 4> cleanupCallbacks;
-    QVarLengthArray<QRhi::GpuFrameTimeCallback, 4> gpuFrameTimeCallbacks;
-    QElapsedTimer pipelineCreationTimer;
-    qint64 accumulatedPipelineCreationTime = 0;
-
-    friend class QRhi;
-    friend class QRhiResourceUpdateBatchPrivate;
-};
-
-enum QRhiTargetRectBoundMode
-{
-    UnBounded,
-    Bounded
-};
-
-template<QRhiTargetRectBoundMode boundingMode, typename T, size_t N>
-bool qrhi_toTopLeftRenderTargetRect(const QSize &outputSize, const std::array<T, N> &r,
-                                    T *x, T *y, T *w, T *h)
-{
-    // x,y are bottom-left in QRhiScissor and QRhiViewport but top-left in
-    // Vulkan/Metal/D3D. Our input is an OpenGL-style scissor rect where both
-    // negative x or y, and partly or completely out of bounds rects are
-    // allowed. The only thing the input here cannot have is a negative width
-    // or height. We must handle all other input gracefully, clamping to a zero
-    // width or height rect in the worst case, and ensuring the resulting rect
-    // is inside the rendertarget's bounds because some APIs' validation/debug
-    // layers are allergic to out of bounds scissor rects.
-
-    const T outputWidth = outputSize.width();
-    const T outputHeight = outputSize.height();
-    const T inputWidth = r[2];
-    const T inputHeight = r[3];
-
-    if (inputWidth < 0 || inputHeight < 0)
-        return false;
-
-    *x = r[0];
-    *y = outputHeight - (r[1] + inputHeight);
-    *w = inputWidth;
-    *h = inputHeight;
-
-    if (boundingMode == Bounded) {
-        const T widthOffset = *x < 0 ? -*x : 0;
-        const T heightOffset = *y < 0 ? -*y : 0;
-        *w = *x < outputWidth ? qMax<T>(0, inputWidth - widthOffset) : 0;
-        *h = *y < outputHeight ? qMax<T>(0, inputHeight - heightOffset) : 0;
-
-        *x = qBound<T>(0, *x, outputWidth - 1);
-        *y = qBound<T>(0, *y, outputHeight - 1);
-
-        if (*x + *w > outputWidth)
-            *w = qMax<T>(0, outputWidth - *x);
-        if (*y + *h > outputHeight)
-            *h = qMax<T>(0, outputHeight - *y);
-    }
-    return true;
-}
-
-struct QRhiBufferDataPrivate
-{
-    Q_DISABLE_COPY_MOVE(QRhiBufferDataPrivate)
-    QRhiBufferDataPrivate() { }
-    ~QRhiBufferDataPrivate() { delete[] largeData; }
-    int ref = 1;
-    quint32 size = 0;
-    quint32 largeAlloc = 0;
-    char *largeData = nullptr;
-    static constexpr quint32 SMALL_DATA_SIZE = 1024;
-    char data[SMALL_DATA_SIZE];
-};
-
-// no detach-with-contents, no atomic refcount, no shrink
-class QRhiBufferData
-{
-public:
-    QRhiBufferData() = default;
-    ~QRhiBufferData()
-    {
-        if (d && !--d->ref)
-            delete d;
-    }
-    QRhiBufferData(const QRhiBufferData &other)
-        : d(other.d)
-    {
-        if (d)
-            d->ref += 1;
-    }
-    QRhiBufferData &operator=(const QRhiBufferData &other)
-    {
-        if (d == other.d)
-            return *this;
-        if (other.d)
-            other.d->ref += 1;
-        if (d && !--d->ref)
-            delete d;
-        d = other.d;
-        return *this;
-    }
-    const char *constData() const
-    {
-        return d->size <= QRhiBufferDataPrivate::SMALL_DATA_SIZE ? d->data : d->largeData;
-    }
-    quint32 size() const
-    {
-        return d->size;
-    }
-    void assign(const char *s, quint32 size)
-    {
-        if (!d) {
-            d = new QRhiBufferDataPrivate;
-        } else if (d->ref != 1) {
-            d->ref -= 1;
-            d = new QRhiBufferDataPrivate;
-        }
-        d->size = size;
-        if (size <= QRhiBufferDataPrivate::SMALL_DATA_SIZE) {
-            memcpy(d->data, s, size);
-        } else {
-            if (d->largeAlloc < size) {
-                delete[] d->largeData;
-                d->largeAlloc = size;
-                d->largeData = new char[size];
-            }
-            memcpy(d->largeData, s, size);
-        }
-    }
-private:
-    QRhiBufferDataPrivate *d = nullptr;
-};
-
-Q_DECLARE_TYPEINFO(QRhiBufferData, Q_RELOCATABLE_TYPE);
-
-class QRhiResourceUpdateBatchPrivate
-{
-public:
-    struct BufferOp {
-        enum Type {
-            DynamicUpdate,
-            StaticUpload,
-            Read
-        };
-        Type type;
-        QRhiBuffer *buf;
-        quint32 offset;
-        QRhiBufferData data;
-        quint32 readSize;
-        QRhiBufferReadbackResult *result;
-
-        static BufferOp dynamicUpdate(QRhiBuffer *buf, quint32 offset, quint32 size, const void *data)
-        {
-            BufferOp op = {};
-            op.type = DynamicUpdate;
-            op.buf = buf;
-            op.offset = offset;
-            const int effectiveSize = size ? size : buf->size();
-            op.data.assign(reinterpret_cast<const char *>(data), effectiveSize);
-            return op;
-        }
-
-        static void changeToDynamicUpdate(BufferOp *op, QRhiBuffer *buf, quint32 offset, quint32 size, const void *data)
-        {
-            op->type = DynamicUpdate;
-            op->buf = buf;
-            op->offset = offset;
-            const int effectiveSize = size ? size : buf->size();
-            op->data.assign(reinterpret_cast<const char *>(data), effectiveSize);
-        }
-
-        static BufferOp staticUpload(QRhiBuffer *buf, quint32 offset, quint32 size, const void *data)
-        {
-            BufferOp op = {};
-            op.type = StaticUpload;
-            op.buf = buf;
-            op.offset = offset;
-            const int effectiveSize = size ? size : buf->size();
-            op.data.assign(reinterpret_cast<const char *>(data), effectiveSize);
-            return op;
-        }
-
-        static void changeToStaticUpload(BufferOp *op, QRhiBuffer *buf, quint32 offset, quint32 size, const void *data)
-        {
-            op->type = StaticUpload;
-            op->buf = buf;
-            op->offset = offset;
-            const int effectiveSize = size ? size : buf->size();
-            op->data.assign(reinterpret_cast<const char *>(data), effectiveSize);
-        }
-
-        static BufferOp read(QRhiBuffer *buf, quint32 offset, quint32 size, QRhiBufferReadbackResult *result)
-        {
-            BufferOp op = {};
-            op.type = Read;
-            op.buf = buf;
-            op.offset = offset;
-            op.readSize = size;
-            op.result = result;
-            return op;
-        }
-    };
-
-    struct TextureOp {
-        enum Type {
-            Upload,
-            Copy,
-            Read,
-            GenMips
-        };
-        Type type;
-        QRhiTexture *dst;
-        // Specifying multiple uploads for a subresource must be supported.
-        // In the backend this can then end up, where applicable, as a
-        // single, batched copy operation with only one set of barriers.
-        // This helps when doing for example glyph cache fills.
-        using MipLevelUploadList = std::array<QVector<QRhiTextureSubresourceUploadDescription>, QRhi::MAX_MIP_LEVELS>;
-        QVarLengthArray<MipLevelUploadList, 6> subresDesc;
-        QRhiTexture *src;
-        QRhiTextureCopyDescription desc;
-        QRhiReadbackDescription rb;
-        QRhiReadbackResult *result;
-
-        static TextureOp upload(QRhiTexture *tex, const QRhiTextureUploadDescription &desc)
-        {
-            TextureOp op = {};
-            op.type = Upload;
-            op.dst = tex;
-            int maxLayer = -1;
-            for (auto it = desc.cbeginEntries(), itEnd = desc.cendEntries(); it != itEnd; ++it) {
-                if (it->layer() > maxLayer)
-                    maxLayer = it->layer();
-            }
-            op.subresDesc.resize(maxLayer + 1);
-            for (auto it = desc.cbeginEntries(), itEnd = desc.cendEntries(); it != itEnd; ++it)
-                op.subresDesc[it->layer()][it->level()].append(it->description());
-            return op;
-        }
-
-        static TextureOp copy(QRhiTexture *dst, QRhiTexture *src, const QRhiTextureCopyDescription &desc)
-        {
-            TextureOp op = {};
-            op.type = Copy;
-            op.dst = dst;
-            op.src = src;
-            op.desc = desc;
-            return op;
-        }
-
-        static TextureOp read(const QRhiReadbackDescription &rb, QRhiReadbackResult *result)
-        {
-            TextureOp op = {};
-            op.type = Read;
-            op.rb = rb;
-            op.result = result;
-            return op;
-        }
-
-        static TextureOp genMips(QRhiTexture *tex)
-        {
-            TextureOp op = {};
-            op.type = GenMips;
-            op.dst = tex;
-            return op;
-        }
-    };
-
-    int activeBufferOpCount = 0; // this is the real number of used elements in bufferOps, not bufferOps.count()
-    static const int BUFFER_OPS_STATIC_ALLOC = 1024;
-    QVarLengthArray<BufferOp, BUFFER_OPS_STATIC_ALLOC> bufferOps;
-
-    int activeTextureOpCount = 0; // this is the real number of used elements in textureOps, not textureOps.count()
-    static const int TEXTURE_OPS_STATIC_ALLOC = 256;
-    QVarLengthArray<TextureOp, TEXTURE_OPS_STATIC_ALLOC> textureOps;
-
-    QRhiResourceUpdateBatch *q = nullptr;
-    QRhiImplementation *rhi = nullptr;
-    int poolIndex = -1;
-
-    void free();
-    void merge(QRhiResourceUpdateBatchPrivate *other);
-    bool hasOptimalCapacity() const;
-    void trimOpLists();
-
-    static QRhiResourceUpdateBatchPrivate *get(QRhiResourceUpdateBatch *b) { return b->d; }
-};
-
-template<typename T>
-struct QRhiBatchedBindings
-{
-    void feed(int binding, T resource) { // binding must be strictly increasing
-        if (curBinding == -1 || binding > curBinding + 1) {
-            finish();
-            curBatch.startBinding = binding;
-            curBatch.resources.clear();
-            curBatch.resources.append(resource);
-        } else {
-            Q_ASSERT(binding == curBinding + 1);
-            curBatch.resources.append(resource);
-        }
-        curBinding = binding;
-    }
-
-    bool finish() {
-        if (!curBatch.resources.isEmpty())
-            batches.append(curBatch);
-        return !batches.isEmpty();
-    }
-
-    void clear() {
-        batches.clear();
-        curBatch.resources.clear();
-        curBinding = -1;
-    }
-
-    struct Batch {
-        uint startBinding;
-        QVarLengthArray<T, 4> resources;
-
-        bool operator==(const Batch &other) const
-        {
-            return startBinding == other.startBinding && resources == other.resources;
-        }
-
-        bool operator!=(const Batch &other) const
-        {
-            return !operator==(other);
-        }
-    };
-
-    QVarLengthArray<Batch, 4> batches; // sorted by startBinding
-
-    bool operator==(const QRhiBatchedBindings<T> &other) const
-    {
-        return batches == other.batches;
-    }
-
-    bool operator!=(const QRhiBatchedBindings<T> &other) const
-    {
-        return !operator==(other);
-    }
-
-private:
-    Batch curBatch;
-    int curBinding = -1;
-};
-
-class QRhiGlobalObjectIdGenerator
-{
-public:
-#ifdef Q_ATOMIC_INT64_IS_SUPPORTED
-    using Type = quint64;
-#else
-    using Type = quint32;
-#endif
-    static Type newId();
-};
-
-class QRhiPassResourceTracker
-{
-public:
-    bool isEmpty() const;
-    void reset();
-
-    struct UsageState {
-        int layout;
-        int access;
-        int stage;
-    };
-
-    enum BufferStage {
-        BufVertexInputStage,
-        BufVertexStage,
-        BufTCStage,
-        BufTEStage,
-        BufFragmentStage,
-        BufComputeStage,
-        BufGeometryStage
-    };
-
-    enum BufferAccess {
-        BufVertexInput,
-        BufIndexRead,
-        BufUniformRead,
-        BufStorageLoad,
-        BufStorageStore,
-        BufStorageLoadStore
-    };
-
-    void registerBuffer(QRhiBuffer *buf, int slot, BufferAccess *access, BufferStage *stage,
-                        const UsageState &state);
-
-    enum TextureStage {
-        TexVertexStage,
-        TexTCStage,
-        TexTEStage,
-        TexFragmentStage,
-        TexColorOutputStage,
-        TexDepthOutputStage,
-        TexComputeStage,
-        TexGeometryStage
-    };
-
-    enum TextureAccess {
-        TexSample,
-        TexColorOutput,
-        TexDepthOutput,
-        TexStorageLoad,
-        TexStorageStore,
-        TexStorageLoadStore
-    };
-
-    void registerTexture(QRhiTexture *tex, TextureAccess *access, TextureStage *stage,
-                         const UsageState &state);
-
-    struct Buffer {
-        int slot;
-        BufferAccess access;
-        BufferStage stage;
-        UsageState stateAtPassBegin;
-    };
-
-    using BufferIterator = QHash<QRhiBuffer *, Buffer>::const_iterator;
-    BufferIterator cbeginBuffers() const { return m_buffers.cbegin(); }
-    BufferIterator cendBuffers() const { return m_buffers.cend(); }
-
-    struct Texture {
-        TextureAccess access;
-        TextureStage stage;
-        UsageState stateAtPassBegin;
-    };
-
-    using TextureIterator = QHash<QRhiTexture *, Texture>::const_iterator;
-    TextureIterator cbeginTextures() const { return m_textures.cbegin(); }
-    TextureIterator cendTextures() const { return m_textures.cend(); }
-
-    static BufferStage toPassTrackerBufferStage(QRhiShaderResourceBinding::StageFlags stages);
-    static TextureStage toPassTrackerTextureStage(QRhiShaderResourceBinding::StageFlags stages);
-
-private:
-    QHash<QRhiBuffer *, Buffer> m_buffers;
-    QHash<QRhiTexture *, Texture> m_textures;
-};
-
-Q_DECLARE_TYPEINFO(QRhiPassResourceTracker::Buffer, Q_RELOCATABLE_TYPE);
-Q_DECLARE_TYPEINFO(QRhiPassResourceTracker::Texture, Q_RELOCATABLE_TYPE);
-
-template<typename T, int GROW = 1024>
-class QRhiBackendCommandList
-{
-public:
-    QRhiBackendCommandList() = default;
-    ~QRhiBackendCommandList() { delete[] v; }
-    inline void reset() { p = 0; }
-    inline bool isEmpty() const { return p == 0; }
-    inline T &get() {
-        if (p == a) {
-            a += GROW;
-            T *nv = new T[a];
-            if (v) {
-                memcpy(nv, v, p * sizeof(T));
-                delete[] v;
-            }
-            v = nv;
-        }
-        return v[p++];
-    }
-    inline void unget() { --p; }
-    inline T *cbegin() const { return v; }
-    inline T *cend() const { return v + p; }
-    inline T *begin() { return v; }
-    inline T *end() { return v + p; }
-private:
-    Q_DISABLE_COPY(QRhiBackendCommandList)
-    T *v = nullptr;
-    int a = 0;
-    int p = 0;
-};
-
-struct QRhiRenderTargetAttachmentTracker
-{
-    struct ResId { quint64 id; uint generation; };
-    using ResIdList = QVarLengthArray<ResId, 8 * 2 + 1>; // color, resolve, ds
-
-    template<typename TexType, typename RenderBufferType>
-    static void updateResIdList(const QRhiTextureRenderTargetDescription &desc, ResIdList *dst);
-
-    template<typename TexType, typename RenderBufferType>
-    static bool isUpToDate(const QRhiTextureRenderTargetDescription &desc, const ResIdList &currentResIdList);
-};
-
-inline bool operator==(const QRhiRenderTargetAttachmentTracker::ResId &a, const QRhiRenderTargetAttachmentTracker::ResId &b)
-{
-    return a.id == b.id && a.generation == b.generation;
-}
-
-inline bool operator!=(const QRhiRenderTargetAttachmentTracker::ResId &a, const QRhiRenderTargetAttachmentTracker::ResId &b)
-{
-    return !(a == b);
-}
-
-template<typename TexType, typename RenderBufferType>
-void QRhiRenderTargetAttachmentTracker::updateResIdList(const QRhiTextureRenderTargetDescription &desc, ResIdList *dst)
-{
-    const quintptr colorAttCount = desc.cendColorAttachments() - desc.cbeginColorAttachments();
-    const bool hasDepthStencil = desc.depthStencilBuffer() || desc.depthTexture();
-    dst->resize(colorAttCount * 2 + (hasDepthStencil ? 1 : 0));
-    int n = 0;
-    for (auto it = desc.cbeginColorAttachments(), itEnd = desc.cendColorAttachments(); it != itEnd; ++it, ++n) {
-        const QRhiColorAttachment &colorAtt(*it);
-        if (colorAtt.texture()) {
-            TexType *texD = QRHI_RES(TexType, colorAtt.texture());
-            (*dst)[n] = { texD->globalResourceId(), texD->generation };
-        } else if (colorAtt.renderBuffer()) {
-            RenderBufferType *rbD = QRHI_RES(RenderBufferType, colorAtt.renderBuffer());
-            (*dst)[n] = { rbD->globalResourceId(), rbD->generation };
-        } else {
-            (*dst)[n] = { 0, 0 };
-        }
-        ++n;
-        if (colorAtt.resolveTexture()) {
-            TexType *texD = QRHI_RES(TexType, colorAtt.resolveTexture());
-            (*dst)[n] = { texD->globalResourceId(), texD->generation };
-        } else {
-            (*dst)[n] = { 0, 0 };
-        }
-    }
-    if (hasDepthStencil) {
-        if (desc.depthTexture()) {
-            TexType *depthTexD = QRHI_RES(TexType, desc.depthTexture());
-            (*dst)[n] = { depthTexD->globalResourceId(), depthTexD->generation };
-        } else if (desc.depthStencilBuffer()) {
-            RenderBufferType *depthRbD = QRHI_RES(RenderBufferType, desc.depthStencilBuffer());
-            (*dst)[n] = { depthRbD->globalResourceId(), depthRbD->generation };
-        } else {
-            (*dst)[n] = { 0, 0 };
-        }
-    }
-}
-
-template<typename TexType, typename RenderBufferType>
-bool QRhiRenderTargetAttachmentTracker::isUpToDate(const QRhiTextureRenderTargetDescription &desc, const ResIdList &currentResIdList)
-{
-    // Just as setShaderResources() recognizes if an srb's referenced
-    // resources have been rebuilt (got a create() since the srb's
-    // create()), we should do the same for the textures and renderbuffers
-    // referenced from the rendertarget. It is not uncommon that a texture
-    // or ds buffer gets resized due to following a window size in some
-    // form, which involves a create() on them. It is then nice if the
-    // render target auto-rebuilds in beginPass().
-
-    ResIdList resIdList;
-    updateResIdList<TexType, RenderBufferType>(desc, &resIdList);
-    return resIdList == currentResIdList;
-}
-
-template<typename T>
-inline T *qrhi_objectFromProxyData(QRhiSwapChainProxyData *pd, QWindow *window, QRhi::Implementation impl, uint objectIndex)
-{
-    Q_ASSERT(objectIndex < std::size(pd->reserved));
-    if (!pd->reserved[objectIndex]) // // was not set, no other choice, do it here, whatever thread this is
-        *pd = QRhi::updateSwapChainProxyData(impl, window);
-    return static_cast<T *>(pd->reserved[objectIndex]);
-}
-
-QT_END_NAMESPACE
-
-#endif
diff --git a/src/gui/rhi/qrhi_platform.h b/src/gui/rhi/qrhi_platform.h
new file mode 100644
index 00000000..e5069738
--- /dev/null
+++ b/src/gui/rhi/qrhi_platform.h
@@ -0,0 +1,175 @@
+// Copyright (C) 2023 The Qt Company Ltd.
+// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
+
+#ifndef QRHIPLATFORM_H
+#define QRHIPLATFORM_H
+
+//
+//  W A R N I N G
+//  -------------
+//
+// This file is part of the RHI API, with limited compatibility guarantees.
+// Usage of this API may make your code source and binary incompatible with
+// future versions of Qt.
+//
+
+#include <rhi/qrhi.h>
+
+#if QT_CONFIG(opengl)
+#include <QtGui/qsurfaceformat.h>
+#endif
+
+#if QT_CONFIG(vulkan)
+#include <QtGui/qvulkaninstance.h>
+#endif
+
+#if defined(Q_OS_MACOS) || defined(Q_OS_IOS) || defined(Q_QDOC)
+Q_FORWARD_DECLARE_OBJC_CLASS(MTLDevice);
+Q_FORWARD_DECLARE_OBJC_CLASS(MTLCommandQueue);
+Q_FORWARD_DECLARE_OBJC_CLASS(MTLCommandBuffer);
+Q_FORWARD_DECLARE_OBJC_CLASS(MTLRenderCommandEncoder);
+#endif
+
+QT_BEGIN_NAMESPACE
+
+struct Q_GUI_EXPORT QRhiNullInitParams : public QRhiInitParams
+{
+};
+
+struct Q_GUI_EXPORT QRhiNullNativeHandles : public QRhiNativeHandles
+{
+};
+
+#if QT_CONFIG(opengl) || defined(Q_QDOC)
+
+class QOpenGLContext;
+class QOffscreenSurface;
+class QSurface;
+class QWindow;
+
+struct Q_GUI_EXPORT QRhiGles2InitParams : public QRhiInitParams
+{
+    QRhiGles2InitParams();
+
+    QSurfaceFormat format;
+    QSurface *fallbackSurface = nullptr;
+    QWindow *window = nullptr;
+    QOpenGLContext *shareContext = nullptr;
+
+    static QOffscreenSurface *newFallbackSurface(const QSurfaceFormat &format = QSurfaceFormat::defaultFormat());
+};
+
+struct Q_GUI_EXPORT QRhiGles2NativeHandles : public QRhiNativeHandles
+{
+    QOpenGLContext *context = nullptr;
+};
+
+#endif // opengl/qdoc
+
+#if (QT_CONFIG(vulkan) && __has_include(<vulkan/vulkan.h>)) || defined(Q_QDOC)
+
+struct Q_GUI_EXPORT QRhiVulkanInitParams : public QRhiInitParams
+{
+    QVulkanInstance *inst = nullptr;
+    QWindow *window = nullptr;
+    QByteArrayList deviceExtensions;
+
+    static QByteArrayList preferredInstanceExtensions();
+    static QByteArrayList preferredExtensionsForImportedDevice();
+};
+
+struct Q_GUI_EXPORT QRhiVulkanNativeHandles : public QRhiNativeHandles
+{
+    // to import a physical device (always required)
+    VkPhysicalDevice physDev = VK_NULL_HANDLE;
+    // to import a device and queue
+    VkDevice dev = VK_NULL_HANDLE;
+    quint32 gfxQueueFamilyIdx = 0;
+    quint32 gfxQueueIdx = 0;
+    // and optionally, the mem allocator
+    void *vmemAllocator = nullptr;
+
+    // only for querying (rhi->nativeHandles())
+    VkQueue gfxQueue = VK_NULL_HANDLE;
+    QVulkanInstance *inst = nullptr;
+};
+
+struct Q_GUI_EXPORT QRhiVulkanCommandBufferNativeHandles : public QRhiNativeHandles
+{
+    VkCommandBuffer commandBuffer = VK_NULL_HANDLE;
+};
+
+struct Q_GUI_EXPORT QRhiVulkanRenderPassNativeHandles : public QRhiNativeHandles
+{
+    VkRenderPass renderPass = VK_NULL_HANDLE;
+};
+
+#endif // vulkan/qdoc
+
+#if defined(Q_OS_WIN) || defined(Q_QDOC)
+
+// no d3d includes here, to prevent precompiled header mess due to COM, hence the void pointers
+
+struct Q_GUI_EXPORT QRhiD3D11InitParams : public QRhiInitParams
+{
+    bool enableDebugLayer = false;
+};
+
+struct Q_GUI_EXPORT QRhiD3D11NativeHandles : public QRhiNativeHandles
+{
+    // to import a device and a context
+    void *dev = nullptr;
+    void *context = nullptr;
+    // alternatively, to specify the device feature level and/or the adapter to use
+    int featureLevel = 0;
+    quint32 adapterLuidLow = 0;
+    qint32 adapterLuidHigh = 0;
+};
+
+struct Q_GUI_EXPORT QRhiD3D12InitParams : public QRhiInitParams
+{
+    bool enableDebugLayer = false;
+};
+
+struct Q_GUI_EXPORT QRhiD3D12NativeHandles : public QRhiNativeHandles
+{
+    // to import a device
+    void *dev = nullptr;
+    int minimumFeatureLevel = 0;
+    // to just specify the adapter to use, set these and leave dev set to null
+    quint32 adapterLuidLow = 0;
+    qint32 adapterLuidHigh = 0;
+    // in addition, can specify the command queue to use
+    void *commandQueue = nullptr;
+};
+
+struct Q_GUI_EXPORT QRhiD3D12CommandBufferNativeHandles : public QRhiNativeHandles
+{
+    void *commandList = nullptr; // ID3D12GraphicsCommandList
+};
+
+#endif // WIN/QDOC
+
+#if defined(Q_OS_MACOS) || defined(Q_OS_IOS) || defined(Q_QDOC)
+
+struct Q_GUI_EXPORT QRhiMetalInitParams : public QRhiInitParams
+{
+};
+
+struct Q_GUI_EXPORT QRhiMetalNativeHandles : public QRhiNativeHandles
+{
+    MTLDevice *dev = nullptr;
+    MTLCommandQueue *cmdQueue = nullptr;
+};
+
+struct Q_GUI_EXPORT QRhiMetalCommandBufferNativeHandles : public QRhiNativeHandles
+{
+    MTLCommandBuffer *commandBuffer = nullptr;
+    MTLRenderCommandEncoder *encoder = nullptr;
+};
+
+#endif // MACOS/IOS/QDOC
+
+QT_END_NAMESPACE
+
+#endif
diff --git a/src/gui/rhi/qrhid3d11.cpp b/src/gui/rhi/qrhid3d11.cpp
index 1e325b4d..37dd3265 100644
--- a/src/gui/rhi/qrhid3d11.cpp
+++ b/src/gui/rhi/qrhid3d11.cpp
@@ -1,17 +1,14 @@
 // Copyright (C) 2019 The Qt Company Ltd.
 // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
 
-#include "qrhid3d11_p_p.h"
-#include "qshader_p.h"
+#include "qrhid3d11_p.h"
+#include "qshader.h"
 #include "vs_test_p.h"
-#include "cs_tdr_p.h"
 #include <QWindow>
 #include <qmath.h>
-#include <QtCore/private/qsystemlibrary_p.h>
 #include <QtCore/qcryptographichash.h>
 #include <QtCore/private/qsystemerror_p.h>
-
-#include <d3dcompiler.h>
+#include "qrhid3dhelpers_p.h"
 
 #include <VersionHelpers.h>
 
@@ -31,10 +28,13 @@ using namespace Qt::StringLiterals;
 
 /*!
     \class QRhiD3D11InitParams
-    \internal
     \inmodule QtGui
+    \since 6.6
     \brief Direct3D 11 specific initialization parameters.
 
+    \note This is a RHI API with limited compatibility guarantees, see \l QRhi
+    for details.
+
     A D3D11-based QRhi needs no special parameters for initialization. If
     desired, enableDebugLayer can be set to \c true to enable the Direct3D
     debug layer. This can be useful during development, but should be avoided
@@ -47,9 +47,7 @@ using namespace Qt::StringLiterals;
     \endcode
 
     \note QRhiSwapChain should only be used in combination with QWindow
-    instances that have their surface type set to QSurface::OpenGLSurface.
-    There are currently no Direct3D specifics in the Windows platform support
-    of Qt and therefore there is no separate QSurface type available.
+    instances that have their surface type set to QSurface::Direct3DSurface.
 
     \section2 Working with existing Direct3D 11 devices
 
@@ -74,17 +72,47 @@ using namespace Qt::StringLiterals;
     Initialization will fail otherwise.
  */
 
+/*!
+    \variable QRhiD3D11InitParams::enableDebugLayer
+
+    When set to true, a debug device is created, assuming the debug layer is
+    available. The default value is false.
+*/
+
 /*!
     \class QRhiD3D11NativeHandles
-    \internal
     \inmodule QtGui
+    \since 6.6
     \brief Holds the D3D device and device context used by the QRhi.
 
     \note The class uses \c{void *} as the type since including the COM-based
     \c{d3d11.h} headers is not acceptable here. The actual types are
     \c{ID3D11Device *} and \c{ID3D11DeviceContext *}.
+
+    \note This is a RHI API with limited compatibility guarantees, see \l QRhi
+    for details.
  */
 
+/*!
+    \variable QRhiD3D11NativeHandles::dev
+*/
+
+/*!
+    \variable QRhiD3D11NativeHandles::context
+*/
+
+/*!
+    \variable QRhiD3D11NativeHandles::featureLevel
+*/
+
+/*!
+    \variable QRhiD3D11NativeHandles::adapterLuidLow
+*/
+
+/*!
+    \variable QRhiD3D11NativeHandles::adapterLuidHigh
+*/
+
 // help mingw with its ancient sdk headers
 #ifndef DXGI_ADAPTER_FLAG_SOFTWARE
 #define DXGI_ADAPTER_FLAG_SOFTWARE 2
@@ -99,14 +127,10 @@ using namespace Qt::StringLiterals;
 #endif
 
 QRhiD3D11::QRhiD3D11(QRhiD3D11InitParams *params, QRhiD3D11NativeHandles *importParams)
-    : ofr(this),
-      deviceCurse(this)
+    : ofr(this)
 {
     debugLayer = params->enableDebugLayer;
 
-    deviceCurse.framesToActivate = params->framesUntilKillingDeviceViaTdr;
-    deviceCurse.permanent = params->repeatDeviceKill;
-
     if (importParams) {
         if (importParams->dev && importParams->context) {
             dev = reinterpret_cast<ID3D11Device *>(importParams->dev);
@@ -333,6 +357,11 @@ bool QRhiD3D11::create(QRhi::Flags flags)
     if (FAILED(context->QueryInterface(__uuidof(ID3DUserDefinedAnnotation), reinterpret_cast<void **>(&annotations))))
         annotations = nullptr;
 
+    if (flags.testFlag(QRhi::EnableTimestamps)) {
+        ofr.timestamps.prepare(2, this);
+        // timestamp queries are optional so we can go on even if they failed
+    }
+
     deviceLost = false;
 
     nativeHandlesStruct.dev = dev;
@@ -341,9 +370,6 @@ bool QRhiD3D11::create(QRhi::Flags flags)
     nativeHandlesStruct.adapterLuidLow = adapterLuid.LowPart;
     nativeHandlesStruct.adapterLuidHigh = adapterLuid.HighPart;
 
-    if (deviceCurse.framesToActivate > 0)
-        deviceCurse.initResources();
-
     return true;
 }
 
@@ -361,7 +387,7 @@ void QRhiD3D11::destroy()
 
     clearShaderCache();
 
-    deviceCurse.releaseResources();
+    ofr.timestamps.destroy();
 
     if (annotations) {
         annotations->Release();
@@ -565,6 +591,12 @@ bool QRhiD3D11::isFeatureSupported(QRhi::Feature feature) const
         return true;
     case QRhi::OneDimensionalTextureMipmaps:
         return true;
+    case QRhi::HalfAttributes:
+        return true;
+    case QRhi::RenderToOneDimensionalTexture:
+        return true;
+    case QRhi::ThreeDimensionalTextureMipmaps:
+        return true;
     default:
         Q_UNREACHABLE();
         return false;
@@ -889,7 +921,7 @@ void QRhiD3D11::setShaderResources(QRhiCommandBuffer *cb, QRhiShaderResourceBind
 
     bool srbUpdate = false;
     for (int i = 0, ie = srbD->sortedBindings.count(); i != ie; ++i) {
-        const QRhiShaderResourceBinding::Data *b = srbD->sortedBindings.at(i).data();
+        const QRhiShaderResourceBinding::Data *b = shaderResourceBindingData(srbD->sortedBindings.at(i));
         QD3D11ShaderResourceBindings::BoundResourceData &bd(srbD->boundResourceData[i]);
         switch (b->type) {
         case QRhiShaderResourceBinding::UniformBuffer:
@@ -1252,6 +1284,12 @@ void QRhiD3D11::endExternal(QRhiCommandBuffer *cb)
     }
 }
 
+double QRhiD3D11::lastCompletedGpuTime(QRhiCommandBuffer *cb)
+{
+    QD3D11CommandBuffer *cbD = QRHI_RES(QD3D11CommandBuffer, cb);
+    return cbD->lastGpuTime;
+}
+
 QRhi::FrameOpResult QRhiD3D11::beginFrame(QRhiSwapChain *swapChain, QRhi::BeginFrameFlags flags)
 {
     Q_UNUSED(flags);
@@ -1260,30 +1298,6 @@ QRhi::FrameOpResult QRhiD3D11::beginFrame(QRhiSwapChain *swapChain, QRhi::BeginF
     contextState.currentSwapChain = swapChainD;
     const int currentFrameSlot = swapChainD->currentFrameSlot;
 
-    if (swapChainD->timestampActive[currentFrameSlot]) {
-        ID3D11Query *tsDisjoint = swapChainD->timestampDisjointQuery[currentFrameSlot];
-        const int tsIdx = QD3D11SwapChain::BUFFER_COUNT * currentFrameSlot;
-        ID3D11Query *tsStart = swapChainD->timestampQuery[tsIdx];
-        ID3D11Query *tsEnd = swapChainD->timestampQuery[tsIdx + 1];
-        quint64 timestamps[2];
-        D3D11_QUERY_DATA_TIMESTAMP_DISJOINT dj;
-        bool ok = true;
-        ok &= context->GetData(tsDisjoint, &dj, sizeof(dj), D3D11_ASYNC_GETDATA_DONOTFLUSH) == S_OK;
-        ok &= context->GetData(tsEnd, &timestamps[1], sizeof(quint64), D3D11_ASYNC_GETDATA_DONOTFLUSH) == S_OK;
-        // this above is often not ready, not even in frame_where_recorded+2,
-        // not clear why. so make the whole thing async and do not touch the
-        // queries until they are finally all available in frame this+2 or
-        // this+4 or ...
-        ok &= context->GetData(tsStart, &timestamps[0], sizeof(quint64), D3D11_ASYNC_GETDATA_DONOTFLUSH) == S_OK;
-        if (ok) {
-            if (!dj.Disjoint && dj.Frequency) {
-                const float elapsedMs = (timestamps[1] - timestamps[0]) / float(dj.Frequency) * 1000.0f;
-                runGpuFrameTimeCallbacks(elapsedMs);
-            }
-            swapChainD->timestampActive[currentFrameSlot] = false;
-        } // else leave timestampActive set to true, will retry in a subsequent beginFrame
-    }
-
     swapChainD->cb.resetState();
 
     swapChainD->rt.d.rtv[0] = swapChainD->sampleDesc.Count > 1 ?
@@ -1292,6 +1306,12 @@ QRhi::FrameOpResult QRhiD3D11::beginFrame(QRhiSwapChain *swapChain, QRhi::BeginF
 
     finishActiveReadbacks();
 
+    if (swapChainD->timestamps.active[currentFrameSlot]) {
+        double elapsedSec = 0;
+        if (swapChainD->timestamps.tryQueryTimestamps(currentFrameSlot, context, &elapsedSec))
+            swapChainD->cb.lastGpuTime = elapsedSec;
+    }
+
     return QRhi::FrameOpSuccess;
 }
 
@@ -1301,11 +1321,11 @@ QRhi::FrameOpResult QRhiD3D11::endFrame(QRhiSwapChain *swapChain, QRhi::EndFrame
     Q_ASSERT(contextState.currentSwapChain = swapChainD);
     const int currentFrameSlot = swapChainD->currentFrameSlot;
 
-    ID3D11Query *tsDisjoint = swapChainD->timestampDisjointQuery[currentFrameSlot];
+    ID3D11Query *tsDisjoint = swapChainD->timestamps.disjointQuery[currentFrameSlot];
     const int tsIdx = QD3D11SwapChain::BUFFER_COUNT * currentFrameSlot;
-    ID3D11Query *tsStart = swapChainD->timestampQuery[tsIdx];
-    ID3D11Query *tsEnd = swapChainD->timestampQuery[tsIdx + 1];
-    const bool recordTimestamps = tsDisjoint && tsStart && tsEnd && !swapChainD->timestampActive[currentFrameSlot];
+    ID3D11Query *tsStart = swapChainD->timestamps.query[tsIdx];
+    ID3D11Query *tsEnd = swapChainD->timestamps.query[tsIdx + 1];
+    const bool recordTimestamps = tsDisjoint && tsStart && tsEnd && !swapChainD->timestamps.active[currentFrameSlot];
 
     // send all commands to the context
     if (recordTimestamps)
@@ -1323,7 +1343,7 @@ QRhi::FrameOpResult QRhiD3D11::endFrame(QRhiSwapChain *swapChain, QRhi::EndFrame
     if (recordTimestamps) {
         context->End(tsEnd);
         context->End(tsDisjoint);
-        swapChainD->timestampActive[currentFrameSlot] = true;
+        swapChainD->timestamps.active[currentFrameSlot] = true;
     }
 
     if (!flags.testFlag(QRhi::SkipPresent)) {
@@ -1353,19 +1373,6 @@ QRhi::FrameOpResult QRhiD3D11::endFrame(QRhiSwapChain *swapChain, QRhi::EndFrame
     swapChainD->frameCount += 1;
     contextState.currentSwapChain = nullptr;
 
-    if (deviceCurse.framesToActivate > 0) {
-        deviceCurse.framesLeft -= 1;
-        if (deviceCurse.framesLeft == 0) {
-            deviceCurse.framesLeft = deviceCurse.framesToActivate;
-            if (!deviceCurse.permanent)
-                deviceCurse.framesToActivate = -1;
-
-            deviceCurse.activate();
-        } else if (deviceCurse.framesLeft % 100 == 0) {
-            qDebug("Impending doom: %d frames left", deviceCurse.framesLeft);
-        }
-    }
-
     return QRhi::FrameOpSuccess;
 }
 
@@ -1377,6 +1384,12 @@ QRhi::FrameOpResult QRhiD3D11::beginOffscreenFrame(QRhiCommandBuffer **cb, QRhi:
     ofr.cbWrapper.resetState();
     *cb = &ofr.cbWrapper;
 
+    if (ofr.timestamps.active[ofr.timestampIdx]) {
+        double elapsedSec = 0;
+        if (ofr.timestamps.tryQueryTimestamps(ofr.timestampIdx, context, &elapsedSec))
+            ofr.cbWrapper.lastGpuTime = elapsedSec;
+    }
+
     return QRhi::FrameOpSuccess;
 }
 
@@ -1385,11 +1398,26 @@ QRhi::FrameOpResult QRhiD3D11::endOffscreenFrame(QRhi::EndFrameFlags flags)
     Q_UNUSED(flags);
     ofr.active = false;
 
+    ID3D11Query *tsDisjoint = ofr.timestamps.disjointQuery[ofr.timestampIdx];
+    ID3D11Query *tsStart = ofr.timestamps.query[ofr.timestampIdx * 2];
+    ID3D11Query *tsEnd = ofr.timestamps.query[ofr.timestampIdx * 2 + 1];
+    const bool recordTimestamps = tsDisjoint && tsStart && tsEnd && !ofr.timestamps.active[ofr.timestampIdx];
+    if (recordTimestamps) {
+        context->Begin(tsDisjoint);
+        context->End(tsStart); // record timestamp; no Begin() for D3D11_QUERY_TIMESTAMP
+    }
+
     executeCommandBuffer(&ofr.cbWrapper);
+    context->Flush();
 
     finishActiveReadbacks();
 
-    context->Flush();
+    if (recordTimestamps) {
+        context->End(tsEnd);
+        context->End(tsDisjoint);
+        ofr.timestamps.active[ofr.timestampIdx] = true;
+        ofr.timestampIdx = (ofr.timestampIdx + 1) % 2;
+    }
 
     return QRhi::FrameOpSuccess;
 }
@@ -1658,6 +1686,8 @@ void QRhiD3D11::enqueueResourceUpdates(QRhiCommandBuffer *cb, QRhiResourceUpdate
             if (bufD->m_type == QRhiBuffer::Dynamic) {
                 u.result->data.resize(u.readSize);
                 memcpy(u.result->data.data(), bufD->dynBuf + u.offset, size_t(u.readSize));
+                if (u.result->completed)
+                    u.result->completed();
             } else {
                 BufferReadback readback;
                 readback.result = u.result;
@@ -1693,8 +1723,6 @@ void QRhiD3D11::enqueueResourceUpdates(QRhiCommandBuffer *cb, QRhiResourceUpdate
 
                 activeBufferReadbacks.append(readback);
             }
-            if (u.result->completed)
-                u.result->completed();
         }
     }
     for (int opIdx = 0; opIdx < ud->activeTextureOpCount; ++opIdx) {
@@ -2193,7 +2221,7 @@ void QRhiD3D11::updateShaderResourceBindings(QD3D11ShaderResourceBindings *srbD,
     } res[RBM_SUPPORTED_STAGES];
 
     for (int i = 0, ie = srbD->sortedBindings.count(); i != ie; ++i) {
-        const QRhiShaderResourceBinding::Data *b = srbD->sortedBindings.at(i).data();
+        const QRhiShaderResourceBinding::Data *b = shaderResourceBindingData(srbD->sortedBindings.at(i));
         QD3D11ShaderResourceBindings::BoundResourceData &bd(srbD->boundResourceData[i]);
         switch (b->type) {
         case QRhiShaderResourceBinding::UniformBuffer:
@@ -2639,10 +2667,10 @@ void QRhiD3D11::executeCommandBuffer(QD3D11CommandBuffer *cbD, QD3D11SwapChain *
 
     if (timestampSwapChain) {
         const int currentFrameSlot = timestampSwapChain->currentFrameSlot;
-        ID3D11Query *tsDisjoint = timestampSwapChain->timestampDisjointQuery[currentFrameSlot];
+        ID3D11Query *tsDisjoint = timestampSwapChain->timestamps.disjointQuery[currentFrameSlot];
         const int tsIdx = QD3D11SwapChain::BUFFER_COUNT * currentFrameSlot;
-        ID3D11Query *tsStart = timestampSwapChain->timestampQuery[tsIdx];
-        if (tsDisjoint && tsStart && !timestampSwapChain->timestampActive[currentFrameSlot]) {
+        ID3D11Query *tsStart = timestampSwapChain->timestamps.query[tsIdx];
+        if (tsDisjoint && tsStart && !timestampSwapChain->timestamps.active[currentFrameSlot]) {
             // The timestamps seem to include vsync time with Present(1), except
             // when running on a non-primary gpu. This is not ideal. So try working
             // it around by issuing a semi-fake OMSetRenderTargets early and
@@ -3216,12 +3244,10 @@ bool QD3D11Texture::prepareCreate(QSize *adjustedSize)
         qWarning("Texture cannot be both 1D and 3D");
         return false;
     }
-    m_depth = qMax(1, m_depth);
     if (m_depth > 1 && !is3D) {
         qWarning("Texture cannot have a depth of %d when it is not 3D", m_depth);
         return false;
     }
-    m_arraySize = qMax(0, m_arraySize);
     if (m_arraySize > 0 && !isArray) {
         qWarning("Texture cannot have an array size of %d when it is not an array", m_arraySize);
         return false;
@@ -3261,7 +3287,7 @@ bool QD3D11Texture::finishCreate()
                     srvDesc.Texture1DArray.ArraySize = UINT(m_arrayRangeLength);
                 } else {
                     srvDesc.Texture1DArray.FirstArraySlice = 0;
-                    srvDesc.Texture1DArray.ArraySize = UINT(m_arraySize);
+                    srvDesc.Texture1DArray.ArraySize = UINT(qMax(0, m_arraySize));
                 }
             } else {
                 srvDesc.ViewDimension = D3D11_SRV_DIMENSION_TEXTURE1D;
@@ -3275,7 +3301,7 @@ bool QD3D11Texture::finishCreate()
                     srvDesc.Texture2DMSArray.ArraySize = UINT(m_arrayRangeLength);
                 } else {
                     srvDesc.Texture2DMSArray.FirstArraySlice = 0;
-                    srvDesc.Texture2DMSArray.ArraySize = UINT(m_arraySize);
+                    srvDesc.Texture2DMSArray.ArraySize = UINT(qMax(0, m_arraySize));
                 }
             } else {
                 srvDesc.ViewDimension = D3D11_SRV_DIMENSION_TEXTURE2DARRAY;
@@ -3285,7 +3311,7 @@ bool QD3D11Texture::finishCreate()
                     srvDesc.Texture2DArray.ArraySize = UINT(m_arrayRangeLength);
                 } else {
                     srvDesc.Texture2DArray.FirstArraySlice = 0;
-                    srvDesc.Texture2DArray.ArraySize = UINT(m_arraySize);
+                    srvDesc.Texture2DArray.ArraySize = UINT(qMax(0, m_arraySize));
                 }
             }
         } else {
@@ -3348,7 +3374,7 @@ bool QD3D11Texture::create()
         D3D11_TEXTURE1D_DESC desc = {};
         desc.Width = UINT(size.width());
         desc.MipLevels = mipLevelCount;
-        desc.ArraySize = isArray ? UINT(m_arraySize) : 1;
+        desc.ArraySize = isArray ? UINT(qMax(0, m_arraySize)) : 1;
         desc.Format = dxgiFormat;
         desc.Usage = D3D11_USAGE_DEFAULT;
         desc.BindFlags = bindFlags;
@@ -3368,7 +3394,7 @@ bool QD3D11Texture::create()
         desc.Width = UINT(size.width());
         desc.Height = UINT(size.height());
         desc.MipLevels = mipLevelCount;
-        desc.ArraySize = isCube ? 6 : (isArray ? UINT(m_arraySize) : 1);
+        desc.ArraySize = isCube ? 6 : (isArray ? UINT(qMax(0, m_arraySize)) : 1);
         desc.Format = dxgiFormat;
         desc.SampleDesc = sampleDesc;
         desc.Usage = D3D11_USAGE_DEFAULT;
@@ -3387,7 +3413,7 @@ bool QD3D11Texture::create()
         D3D11_TEXTURE3D_DESC desc = {};
         desc.Width = UINT(size.width());
         desc.Height = UINT(size.height());
-        desc.Depth = UINT(m_depth);
+        desc.Depth = UINT(qMax(1, m_depth));
         desc.MipLevels = mipLevelCount;
         desc.Format = dxgiFormat;
         desc.Usage = D3D11_USAGE_DEFAULT;
@@ -3460,7 +3486,7 @@ ID3D11UnorderedAccessView *QD3D11Texture::unorderedAccessViewForLevel(int level)
         desc.ViewDimension = D3D11_UAV_DIMENSION_TEXTURE2DARRAY;
         desc.Texture2DArray.MipSlice = UINT(level);
         desc.Texture2DArray.FirstArraySlice = 0;
-        desc.Texture2DArray.ArraySize = UINT(m_arraySize);
+        desc.Texture2DArray.ArraySize = UINT(qMax(0, m_arraySize));
     } else if (is3D) {
         desc.ViewDimension = D3D11_UAV_DIMENSION_TEXTURE3D;
         desc.Texture3D.MipSlice = UINT(level);
@@ -3729,8 +3755,7 @@ bool QD3D11TextureRenderTarget::create()
     if (rtv[0] || dsv)
         destroy();
 
-    const bool hasColorAttachments = m_desc.cbeginColorAttachments() != m_desc.cendColorAttachments();
-    Q_ASSERT(hasColorAttachments || m_desc.depthTexture());
+    Q_ASSERT(m_desc.colorAttachmentCount() > 0 || m_desc.depthTexture());
     Q_ASSERT(!m_desc.depthStencilBuffer() || !m_desc.depthTexture());
     const bool hasDepthStencil = m_desc.depthStencilBuffer() || m_desc.depthTexture();
 
@@ -3818,6 +3843,27 @@ bool QD3D11TextureRenderTarget::create()
             dsvDesc.Format = toD3DDepthTextureDSVFormat(depthTexD->format());
             dsvDesc.ViewDimension = depthTexD->sampleDesc.Count > 1 ? D3D11_DSV_DIMENSION_TEXTURE2DMS
                                                                     : D3D11_DSV_DIMENSION_TEXTURE2D;
+            if (depthTexD->flags().testFlag(QRhiTexture::TextureArray)) {
+                if (depthTexD->sampleDesc.Count > 1) {
+                    dsvDesc.ViewDimension = D3D11_DSV_DIMENSION_TEXTURE2DMSARRAY;
+                    if (depthTexD->arrayRangeStart() >= 0 && depthTexD->arrayRangeLength() >= 0) {
+                        dsvDesc.Texture2DMSArray.FirstArraySlice = UINT(depthTexD->arrayRangeStart());
+                        dsvDesc.Texture2DMSArray.ArraySize = UINT(depthTexD->arrayRangeLength());
+                    } else {
+                        dsvDesc.Texture2DMSArray.FirstArraySlice = 0;
+                        dsvDesc.Texture2DMSArray.ArraySize = UINT(qMax(0, depthTexD->arraySize()));
+                    }
+                } else {
+                    dsvDesc.ViewDimension = D3D11_DSV_DIMENSION_TEXTURE2DARRAY;
+                    if (depthTexD->arrayRangeStart() >= 0 && depthTexD->arrayRangeLength() >= 0) {
+                        dsvDesc.Texture2DArray.FirstArraySlice = UINT(depthTexD->arrayRangeStart());
+                        dsvDesc.Texture2DArray.ArraySize = UINT(depthTexD->arrayRangeLength());
+                    } else {
+                        dsvDesc.Texture2DArray.FirstArraySlice = 0;
+                        dsvDesc.Texture2DArray.ArraySize = UINT(qMax(0, depthTexD->arraySize()));
+                    }
+                }
+            }
             HRESULT hr = rhiD->dev->CreateDepthStencilView(depthTexD->tex, &dsvDesc, &dsv);
             if (FAILED(hr)) {
                 qWarning("Failed to create dsv: %s",
@@ -3904,11 +3950,7 @@ bool QD3D11ShaderResourceBindings::create()
     rhiD->updateLayoutDesc(this);
 
     std::copy(m_bindings.cbegin(), m_bindings.cend(), std::back_inserter(sortedBindings));
-    std::sort(sortedBindings.begin(), sortedBindings.end(),
-              [](const QRhiShaderResourceBinding &a, const QRhiShaderResourceBinding &b)
-    {
-        return a.data()->binding < b.data()->binding;
-    });
+    std::sort(sortedBindings.begin(), sortedBindings.end(), QRhiImplementation::sortedBindingLessThan);
 
     boundResourceData.resize(sortedBindings.count());
 
@@ -3917,7 +3959,7 @@ bool QD3D11ShaderResourceBindings::create()
 
     hasDynamicOffset = false;
     for (const QRhiShaderResourceBinding &b : sortedBindings) {
-        const QRhiShaderResourceBinding::Data *bd = b.data();
+        const QRhiShaderResourceBinding::Data *bd = QRhiImplementation::shaderResourceBindingData(b);
         if (bd->type == QRhiShaderResourceBinding::UniformBuffer && bd->u.ubuf.hasDynamicOffset) {
             hasDynamicOffset = true;
             break;
@@ -3933,13 +3975,8 @@ void QD3D11ShaderResourceBindings::updateResources(UpdateFlags flags)
 {
     sortedBindings.clear();
     std::copy(m_bindings.cbegin(), m_bindings.cend(), std::back_inserter(sortedBindings));
-    if (!flags.testFlag(BindingsAreSorted)) {
-        std::sort(sortedBindings.begin(), sortedBindings.end(),
-                  [](const QRhiShaderResourceBinding &a, const QRhiShaderResourceBinding &b)
-        {
-            return a.data()->binding < b.data()->binding;
-        });
-    }
+    if (!flags.testFlag(BindingsAreSorted))
+        std::sort(sortedBindings.begin(), sortedBindings.end(), QRhiImplementation::sortedBindingLessThan);
 
     Q_ASSERT(boundResourceData.count() == sortedBindings.count());
     for (BoundResourceData &bd : boundResourceData)
@@ -4113,6 +4150,14 @@ static inline DXGI_FORMAT toD3DAttributeFormat(QRhiVertexInputAttribute::Format
         return DXGI_FORMAT_R32G32_SINT;
     case QRhiVertexInputAttribute::SInt:
         return DXGI_FORMAT_R32_SINT;
+    case QRhiVertexInputAttribute::Half4:
+    // Note: D3D does not support half3.  Pass through half3 as half4.
+    case QRhiVertexInputAttribute::Half3:
+        return DXGI_FORMAT_R16G16B16A16_FLOAT;
+    case QRhiVertexInputAttribute::Half2:
+        return DXGI_FORMAT_R16G16_FLOAT;
+    case QRhiVertexInputAttribute::Half:
+         return DXGI_FORMAT_R16_FLOAT;
     default:
         Q_UNREACHABLE();
         return DXGI_FORMAT_R32G32B32A32_FLOAT;
@@ -4225,18 +4270,6 @@ static inline D3D11_BLEND_OP toD3DBlendOp(QRhiGraphicsPipeline::BlendOp op)
     }
 }
 
-static pD3DCompile resolveD3DCompile()
-{
-    for (const wchar_t *libraryName : {L"D3DCompiler_47", L"D3DCompiler_43"}) {
-        QSystemLibrary library(libraryName);
-        if (library.load()) {
-            if (auto symbol = library.resolve("D3DCompile"))
-                return reinterpret_cast<pD3DCompile>(symbol);
-        }
-    }
-    return nullptr;
-}
-
 static inline QByteArray sourceHash(const QByteArray &source)
 {
     // taken from the GL backend, use the same mechanism to get a key
@@ -4302,7 +4335,7 @@ QByteArray QRhiD3D11::compileHlslShaderSource(const QShader &shader, QShader::Va
             return cacheIt.value();
     }
 
-    static const pD3DCompile d3dCompile = resolveD3DCompile();
+    static const pD3DCompile d3dCompile = QRhiD3D::resolveD3DCompile();
     if (d3dCompile == nullptr) {
         qWarning("Unable to resolve function D3DCompile()");
         return QByteArray();
@@ -4670,6 +4703,92 @@ void QD3D11CommandBuffer::destroy()
     // nothing to do here
 }
 
+bool QD3D11Timestamps::prepare(int pairCount, QRhiD3D11 *rhiD)
+{
+    // Creates the query objects if not yet done, but otherwise calling this
+    // function is expected to be a no-op.
+
+    Q_ASSERT(pairCount <= MAX_TIMESTAMP_PAIRS);
+    D3D11_QUERY_DESC queryDesc = {};
+    for (int i = 0; i < pairCount; ++i) {
+        if (!disjointQuery[i]) {
+            queryDesc.Query = D3D11_QUERY_TIMESTAMP_DISJOINT;
+            HRESULT hr = rhiD->dev->CreateQuery(&queryDesc, &disjointQuery[i]);
+            if (FAILED(hr)) {
+                qWarning("Failed to create timestamp disjoint query: %s",
+                         qPrintable(QSystemError::windowsComString(hr)));
+                return false;
+            }
+        }
+        queryDesc.Query = D3D11_QUERY_TIMESTAMP;
+        for (int j = 0; j < 2; ++j) {
+            const int idx = pairCount * i + j;
+            if (!query[idx]) {
+                HRESULT hr = rhiD->dev->CreateQuery(&queryDesc, &query[idx]);
+                if (FAILED(hr)) {
+                    qWarning("Failed to create timestamp query: %s",
+                             qPrintable(QSystemError::windowsComString(hr)));
+                    return false;
+                }
+            }
+        }
+    }
+    this->pairCount = pairCount;
+    return true;
+}
+
+void QD3D11Timestamps::destroy()
+{
+    for (int i = 0; i < MAX_TIMESTAMP_PAIRS; ++i) {
+        active[i] = false;
+        if (disjointQuery[i]) {
+            disjointQuery[i]->Release();
+            disjointQuery[i] = nullptr;
+        }
+        for (int j = 0; j < 2; ++j) {
+            const int idx = MAX_TIMESTAMP_PAIRS * i + j;
+            if (query[idx]) {
+                query[idx]->Release();
+                query[idx] = nullptr;
+            }
+        }
+    }
+}
+
+bool QD3D11Timestamps::tryQueryTimestamps(int idx, ID3D11DeviceContext *context, double *elapsedSec)
+{
+    bool result = false;
+    if (!active[idx])
+        return result;
+
+    ID3D11Query *tsDisjoint = disjointQuery[idx];
+    const int tsIdx = pairCount * idx;
+    ID3D11Query *tsStart = query[tsIdx];
+    ID3D11Query *tsEnd = query[tsIdx + 1];
+    quint64 timestamps[2];
+    D3D11_QUERY_DATA_TIMESTAMP_DISJOINT dj;
+
+    bool ok = true;
+    ok &= context->GetData(tsDisjoint, &dj, sizeof(dj), D3D11_ASYNC_GETDATA_DONOTFLUSH) == S_OK;
+    ok &= context->GetData(tsEnd, &timestamps[1], sizeof(quint64), D3D11_ASYNC_GETDATA_DONOTFLUSH) == S_OK;
+    // this above is often not ready, not even in frame_where_recorded+2,
+    // not clear why. so make the whole thing async and do not touch the
+    // queries until they are finally all available in frame this+2 or
+    // this+4 or ...
+    ok &= context->GetData(tsStart, &timestamps[0], sizeof(quint64), D3D11_ASYNC_GETDATA_DONOTFLUSH) == S_OK;
+
+    if (ok) {
+        if (!dj.Disjoint && dj.Frequency) {
+            const float elapsedMs = (timestamps[1] - timestamps[0]) / float(dj.Frequency) * 1000.0f;
+            *elapsedSec = elapsedMs / 1000.0;
+            result = true;
+        }
+        active[idx] = false;
+    } // else leave active set, will retry in a subsequent beginFrame or similar
+
+    return result;
+}
+
 QD3D11SwapChain::QD3D11SwapChain(QRhiImplementation *rhi)
     : QRhiSwapChain(rhi),
       rt(rhi, this),
@@ -4680,10 +4799,6 @@ QD3D11SwapChain::QD3D11SwapChain(QRhiImplementation *rhi)
     for (int i = 0; i < BUFFER_COUNT; ++i) {
         msaaTex[i] = nullptr;
         msaaRtv[i] = nullptr;
-        timestampActive[i] = false;
-        timestampDisjointQuery[i] = nullptr;
-        timestampQuery[2 * i] = nullptr;
-        timestampQuery[2 * i + 1] = nullptr;
     }
 }
 
@@ -4721,19 +4836,7 @@ void QD3D11SwapChain::destroy()
 
     releaseBuffers();
 
-    for (int i = 0; i < BUFFER_COUNT; ++i) {
-        if (timestampDisjointQuery[i]) {
-            timestampDisjointQuery[i]->Release();
-            timestampDisjointQuery[i] = nullptr;
-        }
-        for (int j = 0; j < 2; ++j) {
-            const int idx = BUFFER_COUNT * i + j;
-            if (timestampQuery[idx]) {
-                timestampQuery[idx]->Release();
-                timestampQuery[idx] = nullptr;
-            }
-        }
-    }
+    timestamps.destroy();
 
     swapChain->Release();
     swapChain = nullptr;
@@ -4830,7 +4933,7 @@ bool QD3D11SwapChain::isFormatSupported(Format f)
 QRhiSwapChainHdrInfo QD3D11SwapChain::hdrInfo()
 {
     QRhiSwapChainHdrInfo info = QRhiSwapChain::hdrInfo();
-    if (m_format != QRhiSwapChain::SDR && m_window) {
+    if (m_window) {
         QRHI_RES_RHI(QRhiD3D11);
         DXGI_OUTPUT_DESC1 hdrOutputDesc;
         if (outputDesc1ForWindow(m_window, rhiD->activeAdapter, &hdrOutputDesc)) {
@@ -4887,36 +4990,13 @@ bool QD3D11SwapChain::newColorBuffer(const QSize &size, DXGI_FORMAT format, DXGI
     return true;
 }
 
-static IDCompositionDevice *createDirectCompositionDevice()
-{
-    QSystemLibrary dcomplib(QStringLiteral("dcomp"));
-    typedef HRESULT (__stdcall *DCompositionCreateDeviceFuncPtr)(
-        _In_opt_ IDXGIDevice *dxgiDevice,
-        _In_ REFIID iid,
-        _Outptr_ void **dcompositionDevice);
-    DCompositionCreateDeviceFuncPtr func = reinterpret_cast<DCompositionCreateDeviceFuncPtr>(
-        dcomplib.resolve("DCompositionCreateDevice"));
-    if (!func) {
-        qWarning("Unable to resolve DCompositionCreateDevice, perhaps dcomp.dll is missing?");
-        return nullptr;
-    }
-    IDCompositionDevice *device = nullptr;
-    HRESULT hr = func(nullptr, __uuidof(IDCompositionDevice), reinterpret_cast<void **>(&device));
-    if (FAILED(hr)) {
-        qWarning("Failed to Direct Composition device: %s",
-                 qPrintable(QSystemError::windowsComString(hr)));
-        return nullptr;
-    }
-    return device;
-}
-
 bool QRhiD3D11::ensureDirectCompositionDevice()
 {
     if (dcompDevice)
         return true;
 
     qCDebug(QRHI_LOG_INFO, "Creating Direct Composition device (needed for semi-transparent windows)");
-    dcompDevice = createDirectCompositionDevice();
+    dcompDevice = QRhiD3D::createDirectCompositionDevice();
     return dcompDevice ? true : false;
 }
 
@@ -5097,6 +5177,9 @@ bool QD3D11SwapChain::createOrResize()
                     qWarning("Failed to set content for Direct Composition visual: %s",
                              qPrintable(QSystemError::windowsComString(hr)));
                 }
+            } else {
+                // disable Alt+Enter; not relevant when using DirectComposition
+                rhiD->dxgiFactory->MakeWindowAssociation(hwnd, DXGI_MWA_NO_WINDOW_CHANGES);
             }
         }
         if (FAILED(hr)) {
@@ -5104,7 +5187,6 @@ bool QD3D11SwapChain::createOrResize()
                 qPrintable(QSystemError::windowsComString(hr)));
             return false;
         }
-        rhiD->dxgiFactory->MakeWindowAssociation(hwnd, DXGI_MWA_NO_WINDOW_CHANGES);
     } else {
         releaseBuffers();
         // flip model -> buffer count is the real buffer count, not 1 like with the legacy modes
@@ -5189,31 +5271,8 @@ bool QD3D11SwapChain::createOrResize()
     rtD->d.colorAttCount = 1;
     rtD->d.dsAttCount = m_depthStencil ? 1 : 0;
 
-    if (rhiD->hasGpuFrameTimeCallback()) {
-        D3D11_QUERY_DESC queryDesc = {};
-        for (int i = 0; i < BUFFER_COUNT; ++i) {
-            if (!timestampDisjointQuery[i]) {
-                queryDesc.Query = D3D11_QUERY_TIMESTAMP_DISJOINT;
-                hr = rhiD->dev->CreateQuery(&queryDesc, &timestampDisjointQuery[i]);
-                if (FAILED(hr)) {
-                    qWarning("Failed to create timestamp disjoint query: %s",
-                        qPrintable(QSystemError::windowsComString(hr)));
-                    break;
-                }
-            }
-            queryDesc.Query = D3D11_QUERY_TIMESTAMP;
-            for (int j = 0; j < 2; ++j) {
-                const int idx = BUFFER_COUNT * i + j; // one pair per buffer (frame)
-                if (!timestampQuery[idx]) {
-                    hr = rhiD->dev->CreateQuery(&queryDesc, &timestampQuery[idx]);
-                    if (FAILED(hr)) {
-                        qWarning("Failed to create timestamp query: %s",
-                            qPrintable(QSystemError::windowsComString(hr)));
-                        break;
-                    }
-                }
-            }
-        }
+    if (rhiD->rhiFlags.testFlag(QRhi::EnableTimestamps)) {
+        timestamps.prepare(BUFFER_COUNT, rhiD);
         // timestamp queries are optional so we can go on even if they failed
     }
 
@@ -5225,322 +5284,7 @@ bool QD3D11SwapChain::createOrResize()
 
 bool QD3D11SwapChain::createOrResizeWin7()
 {
-    // Can be called multiple times due to window resizes - that is not the
-    // same as a simple destroy+create (as with other resources). Just need to
-    // resize the buffers then.
-
-    const bool needsRegistration = !window || window != m_window;
-
-    // except if the window actually changes
-    if (window && window != m_window)
-        destroy();
-
-    window = m_window;
-    m_currentPixelSize = surfacePixelSize();
-    pixelSize = m_currentPixelSize;
-
-    if (pixelSize.isEmpty())
-        return false;
-
-    QRHI_RES_RHI(QRhiD3D11);
-    bool useFlipModel = rhiD->supportsFlipSwapchain;
-
-    // Take a shortcut for alpha: whatever the platform plugin does to enable
-    // transparency for our QWindow will be sufficient on the legacy (DISCARD)
-    // path. For FLIP_* we'd need to use DirectComposition (create a
-    // IDCompositionDevice/Target/Visual), avoid that for now. (this though
-    // means HDR and semi-transparent windows cannot be combined)
-    if (m_flags.testFlag(SurfaceHasPreMulAlpha) || m_flags.testFlag(SurfaceHasNonPreMulAlpha)) {
-        useFlipModel = false;
-        if (window->requestedFormat().alphaBufferSize() <= 0)
-            qWarning("Swapchain says surface has alpha but the window has no alphaBufferSize set. "
-                     "This may lead to problems.");
-    }
-
-    swapInterval = m_flags.testFlag(QRhiSwapChain::NoVSync) ? 0 : 1;
-    swapChainFlags = 0;
-
-    // A non-flip swapchain can do Present(0) as expected without
-    // ALLOW_TEARING, and ALLOW_TEARING is not compatible with it at all so the
-    // flag must not be set then. Whereas for flip we should use it, if
-    // supported, to get better results for 'unthrottled' presentation.
-    if (swapInterval == 0 && useFlipModel && rhiD->supportsAllowTearing)
-        swapChainFlags |= DXGI_SWAP_CHAIN_FLAG_ALLOW_TEARING;
-
-    if (!swapChain) {
-        HWND hwnd = reinterpret_cast<HWND>(window->winId());
-        sampleDesc = rhiD->effectiveSampleCount(m_sampleCount);
-        colorFormat = DEFAULT_FORMAT;
-        srgbAdjustedColorFormat = m_flags.testFlag(sRGB) ? DEFAULT_SRGB_FORMAT : DEFAULT_FORMAT;
-
-        HRESULT hr;
-        if (useFlipModel) {
-            DXGI_COLOR_SPACE_TYPE hdrColorSpace = DXGI_COLOR_SPACE_RGB_FULL_G22_NONE_P709; // SDR
-            DXGI_OUTPUT_DESC1 hdrOutputDesc;
-            if (outputDesc1ForWindow(m_window, rhiD->activeAdapter, &hdrOutputDesc) && m_format != SDR) {
-                // https://docs.microsoft.com/en-us/windows/win32/direct3darticles/high-dynamic-range
-                if (hdrOutputDesc.ColorSpace == DXGI_COLOR_SPACE_RGB_FULL_G2084_NONE_P2020) {
-                    switch (m_format) {
-                    case HDRExtendedSrgbLinear:
-                        colorFormat = DXGI_FORMAT_R16G16B16A16_FLOAT;
-                        hdrColorSpace = DXGI_COLOR_SPACE_RGB_FULL_G10_NONE_P709;
-                        srgbAdjustedColorFormat = colorFormat;
-                        break;
-                    case HDR10:
-                        colorFormat = DXGI_FORMAT_R10G10B10A2_UNORM;
-                        hdrColorSpace = DXGI_COLOR_SPACE_RGB_FULL_G2084_NONE_P2020;
-                        srgbAdjustedColorFormat = colorFormat;
-                        break;
-                    default:
-                        break;
-                    }
-                } else {
-                    // This happens also when Use HDR is set to Off in the Windows
-                    // Display settings. Show a helpful warning, but continue with the
-                    // default non-HDR format.
-                    qWarning("The output associated with the window is not HDR capable "
-                             "(or Use HDR is Off in the Display Settings), ignoring HDR format request");
-                }
-            }
-
-            // We use a FLIP model swapchain which implies a buffer count of 2
-            // (as opposed to the old DISCARD with back buffer count == 1).
-            // This makes no difference for the rest of the stuff except that
-            // automatic MSAA is unsupported and needs to be implemented via a
-            // custom multisample render target and an explicit resolve.
-
-            DXGI_SWAP_CHAIN_DESC1 desc;
-            memset(&desc, 0, sizeof(desc));
-            desc.Width = UINT(pixelSize.width());
-            desc.Height = UINT(pixelSize.height());
-            desc.Format = colorFormat;
-            desc.SampleDesc.Count = 1;
-            desc.BufferUsage = DXGI_USAGE_RENDER_TARGET_OUTPUT;
-            desc.BufferCount = BUFFER_COUNT;
-
-            // Normally we'd want FLIP_DISCARD, but that comes with the default
-            // SCALING_STRETCH, as SCALING_NONE is documented to be only
-            // available for FLIP_SEQUENTIAl. The problem with stretch is that
-            // Qt Quick and similar apps typically running in resizable windows
-            // will not like how that looks in practice: the content will
-            // appear to be "jumping" around during a window resize. So choose
-            // sequential/none by default.
-            if (rhiD->forceFlipDiscard) {
-                desc.Scaling = DXGI_SCALING_STRETCH;
-                desc.SwapEffect = DXGI_SWAP_EFFECT_FLIP_DISCARD;
-            } else {
-                desc.Scaling = DXGI_SCALING_NONE;
-                desc.SwapEffect = DXGI_SWAP_EFFECT_FLIP_SEQUENTIAL;
-            }
-
-            // Do not bother with AlphaMode, if won't work unless we go through
-            // DirectComposition. Instead, we just take the other (DISCARD)
-            // path for now when alpha is requested.
-            desc.Flags = swapChainFlags;
-
-            IDXGIFactory2 *fac = static_cast<IDXGIFactory2 *>(rhiD->dxgiFactory);
-            IDXGISwapChain1 *sc1;
-            hr = fac->CreateSwapChainForHwnd(rhiD->dev, hwnd, &desc, nullptr, nullptr, &sc1);
-
-            // If failed and we tried a HDR format, then try with SDR. This
-            // matches other backends, such as Vulkan where if the format is
-            // not supported, the default one is used instead.
-            if (FAILED(hr) && m_format != SDR) {
-                colorFormat = DEFAULT_FORMAT;
-                desc.Format = DEFAULT_FORMAT;
-                hr = fac->CreateSwapChainForHwnd(rhiD->dev, hwnd, &desc, nullptr, nullptr, &sc1);
-            }
-
-            if (SUCCEEDED(hr)) {
-                swapChain = sc1;
-                if (m_format != SDR) {
-                    IDXGISwapChain3 *sc3 = nullptr;
-                    if (SUCCEEDED(sc1->QueryInterface(__uuidof(IDXGISwapChain3), reinterpret_cast<void **>(&sc3)))) {
-                        hr = sc3->SetColorSpace1(hdrColorSpace);
-                        if (FAILED(hr))
-                            qWarning("Failed to set color space on swapchain: %s",
-                                qPrintable(QSystemError::windowsComString(hr)));
-                        sc3->Release();
-                    } else {
-                        qWarning("IDXGISwapChain3 not available, HDR swapchain will not work as expected");
-                    }
-                }
-            }
-        } else {
-            // Fallback: use DISCARD mode. Regardless, keep on using our manual
-            // resolve for symmetry with the FLIP_* code path when MSAA is
-            // requested. This has no HDR support.
-
-            DXGI_SWAP_CHAIN_DESC desc;
-            memset(&desc, 0, sizeof(desc));
-            desc.BufferDesc.Width = UINT(pixelSize.width());
-            desc.BufferDesc.Height = UINT(pixelSize.height());
-            desc.BufferDesc.RefreshRate.Numerator = 60;
-            desc.BufferDesc.RefreshRate.Denominator = 1;
-            desc.BufferDesc.Format = colorFormat;
-            desc.SampleDesc.Count = 1;
-            desc.BufferUsage = DXGI_USAGE_RENDER_TARGET_OUTPUT;
-            desc.BufferCount = 1;
-            desc.OutputWindow = hwnd;
-            desc.Windowed = true;
-            desc.SwapEffect = DXGI_SWAP_EFFECT_DISCARD;
-            desc.Flags = swapChainFlags;
-
-            hr = rhiD->dxgiFactory->CreateSwapChain(rhiD->dev, &desc, &swapChain);
-        }
-        if (FAILED(hr)) {
-            qWarning("Failed to create D3D11 swapchain: %s",
-                qPrintable(QSystemError::windowsComString(hr)));
-            return false;
-        }
-        rhiD->dxgiFactory->MakeWindowAssociation(hwnd, DXGI_MWA_NO_WINDOW_CHANGES);
-    } else {
-        releaseBuffers();
-        const UINT count = useFlipModel ? BUFFER_COUNT : 1;
-        HRESULT hr = swapChain->ResizeBuffers(count, UINT(pixelSize.width()), UINT(pixelSize.height()),
-                                              colorFormat, swapChainFlags);
-        if (hr == DXGI_ERROR_DEVICE_REMOVED || hr == DXGI_ERROR_DEVICE_RESET) {
-            qWarning("Device loss detected in ResizeBuffers()");
-            rhiD->deviceLost = true;
-            return false;
-        } else if (FAILED(hr)) {
-            qWarning("Failed to resize D3D11 swapchain: %s",
-                qPrintable(QSystemError::windowsComString(hr)));
-            return false;
-        }
-    }
-
-    // This looks odd (for FLIP_*, esp. compared with backends for Vulkan
-    // & co.) but the backbuffer is always at index 0, with magic underneath.
-    // Some explanation from
-    // https://docs.microsoft.com/en-us/windows/win32/direct3ddxgi/dxgi-1-4-improvements
-    //
-    // "In Direct3D 11, applications could call GetBuffer( 0, … ) only once.
-    // Every call to Present implicitly changed the resource identity of the
-    // returned interface. Direct3D 12 no longer supports that implicit
-    // resource identity change, due to the CPU overhead required and the
-    // flexible resource descriptor design. As a result, the application must
-    // manually call GetBuffer for every each buffer created with the
-    // swapchain."
-
-    // So just query index 0 once (per resize) and be done with it.
-    HRESULT hr = swapChain->GetBuffer(0, __uuidof(ID3D11Texture2D), reinterpret_cast<void **>(&backBufferTex));
-    if (FAILED(hr)) {
-        qWarning("Failed to query swapchain backbuffer: %s",
-            qPrintable(QSystemError::windowsComString(hr)));
-        return false;
-    }
-    D3D11_RENDER_TARGET_VIEW_DESC rtvDesc = {};
-    rtvDesc.Format = srgbAdjustedColorFormat;
-    rtvDesc.ViewDimension = D3D11_RTV_DIMENSION_TEXTURE2D;
-    hr = rhiD->dev->CreateRenderTargetView(backBufferTex, &rtvDesc, &backBufferRtv);
-    if (FAILED(hr)) {
-        qWarning("Failed to create rtv for swapchain backbuffer: %s",
-            qPrintable(QSystemError::windowsComString(hr)));
-        return false;
-    }
-
-    // Try to reduce stalls by having a dedicated MSAA texture per swapchain buffer.
-    for (int i = 0; i < BUFFER_COUNT; ++i) {
-        if (sampleDesc.Count > 1) {
-            if (!newColorBuffer(pixelSize, srgbAdjustedColorFormat, sampleDesc, &msaaTex[i], &msaaRtv[i]))
-                return false;
-        }
-    }
-
-    if (m_depthStencil && m_depthStencil->sampleCount() != m_sampleCount) {
-        qWarning("Depth-stencil buffer's sampleCount (%d) does not match color buffers' sample count (%d). Expect problems.",
-                 m_depthStencil->sampleCount(), m_sampleCount);
-    }
-    if (m_depthStencil && m_depthStencil->pixelSize() != pixelSize) {
-        if (m_depthStencil->flags().testFlag(QRhiRenderBuffer::UsedWithSwapChainOnly)) {
-            m_depthStencil->setPixelSize(pixelSize);
-            if (!m_depthStencil->create())
-                qWarning("Failed to rebuild swapchain's associated depth-stencil buffer for size %dx%d",
-                         pixelSize.width(), pixelSize.height());
-        } else {
-            qWarning("Depth-stencil buffer's size (%dx%d) does not match the surface size (%dx%d). Expect problems.",
-                     m_depthStencil->pixelSize().width(), m_depthStencil->pixelSize().height(),
-                     pixelSize.width(), pixelSize.height());
-        }
-    }
-
-    currentFrameSlot = 0;
-    frameCount = 0;
-    ds = m_depthStencil ? QRHI_RES(QD3D11RenderBuffer, m_depthStencil) : nullptr;
-
-    rt.setRenderPassDescriptor(m_renderPassDesc); // for the public getter in QRhiRenderTarget
-    QD3D11SwapChainRenderTarget *rtD = QRHI_RES(QD3D11SwapChainRenderTarget, &rt);
-    rtD->d.rp = QRHI_RES(QD3D11RenderPassDescriptor, m_renderPassDesc);
-    rtD->d.pixelSize = pixelSize;
-    rtD->d.dpr = float(window->devicePixelRatio());
-    rtD->d.sampleCount = int(sampleDesc.Count);
-    rtD->d.colorAttCount = 1;
-    rtD->d.dsAttCount = m_depthStencil ? 1 : 0;
-
-    if (rhiD->hasGpuFrameTimeCallback()) {
-        D3D11_QUERY_DESC queryDesc = {};
-        for (int i = 0; i < BUFFER_COUNT; ++i) {
-            if (!timestampDisjointQuery[i]) {
-                queryDesc.Query = D3D11_QUERY_TIMESTAMP_DISJOINT;
-                hr = rhiD->dev->CreateQuery(&queryDesc, &timestampDisjointQuery[i]);
-                if (FAILED(hr)) {
-                    qWarning("Failed to create timestamp disjoint query: %s",
-                        qPrintable(QSystemError::windowsComString(hr)));
-                    break;
-                }
-            }
-            queryDesc.Query = D3D11_QUERY_TIMESTAMP;
-            for (int j = 0; j < 2; ++j) {
-                const int idx = BUFFER_COUNT * i + j; // one pair per buffer (frame)
-                if (!timestampQuery[idx]) {
-                    hr = rhiD->dev->CreateQuery(&queryDesc, &timestampQuery[idx]);
-                    if (FAILED(hr)) {
-                        qWarning("Failed to create timestamp query: %s",
-                            qPrintable(QSystemError::windowsComString(hr)));
-                        break;
-                    }
-                }
-            }
-        }
-        // timestamp queries are optional so we can go on even if they failed
-    }
-
-    if (needsRegistration)
-        rhiD->registerResource(this);
-
-    return true;
-}
-
-void QRhiD3D11::DeviceCurse::initResources()
-{
-    framesLeft = framesToActivate;
-
-    HRESULT hr = q->dev->CreateComputeShader(g_killDeviceByTimingOut, sizeof(g_killDeviceByTimingOut), nullptr, &cs);
-    if (FAILED(hr)) {
-        qWarning("Failed to create compute shader: %s",
-            qPrintable(QSystemError::windowsComString(hr)));
-        return;
-    }
-}
-
-void QRhiD3D11::DeviceCurse::releaseResources()
-{
-    if (cs) {
-        cs->Release();
-        cs = nullptr;
-    }
-}
-
-void QRhiD3D11::DeviceCurse::activate()
-{
-    if (!cs)
-        return;
-
-    qDebug("Activating Curse. Goodbye Cruel World.");
-
-    q->context->CSSetShader(cs, nullptr, 0);
-    q->context->Dispatch(256, 1, 1);
+    return false; // not implemented yet ;(
 }
 
 QT_END_NAMESPACE
diff --git a/src/gui/rhi/qrhid3d11_p.h b/src/gui/rhi/qrhid3d11_p.h
index 31aa58a6..1a711ead 100644
--- a/src/gui/rhi/qrhid3d11_p.h
+++ b/src/gui/rhi/qrhid3d11_p.h
@@ -1,8 +1,8 @@
-// Copyright (C) 2019 The Qt Company Ltd.
+// Copyright (C) 2023 The Qt Company Ltd.
 // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
 
-#ifndef QRHID3D11_H
-#define QRHID3D11_H
+#ifndef QRHID3D11_P_H
+#define QRHID3D11_P_H
 
 //
 //  W A R N I N G
@@ -15,31 +15,840 @@
 // We mean it.
 //
 
-#include <private/qrhi_p.h>
+#include "qrhi_p.h"
+#include <rhi/qshaderdescription.h>
+#include <QWindow>
 
-// no d3d includes here, to prevent precompiled header mess due to COM
+#include <d3d11_1.h>
+#include <dxgi1_6.h>
+#include <dcomp.h>
 
 QT_BEGIN_NAMESPACE
 
-struct Q_GUI_EXPORT QRhiD3D11InitParams : public QRhiInitParams
-{
-    bool enableDebugLayer = false;
+class QRhiD3D11;
 
-    int framesUntilKillingDeviceViaTdr = -1;
-    bool repeatDeviceKill = false;
+struct QD3D11Buffer : public QRhiBuffer
+{
+    QD3D11Buffer(QRhiImplementation *rhi, Type type, UsageFlags usage, quint32 size);
+    ~QD3D11Buffer();
+    void destroy() override;
+    bool create() override;
+    QRhiBuffer::NativeBuffer nativeBuffer() override;
+    char *beginFullDynamicBufferUpdateForCurrentFrame() override;
+    void endFullDynamicBufferUpdateForCurrentFrame() override;
+
+    ID3D11UnorderedAccessView *unorderedAccessView(quint32 offset);
+
+    ID3D11Buffer *buffer = nullptr;
+    char *dynBuf = nullptr;
+    bool hasPendingDynamicUpdates = false;
+    QHash<quint32, ID3D11UnorderedAccessView *> uavs;
+    uint generation = 0;
+    friend class QRhiD3D11;
 };
 
-struct Q_GUI_EXPORT QRhiD3D11NativeHandles : public QRhiNativeHandles
+struct QD3D11RenderBuffer : public QRhiRenderBuffer
 {
-    // to import a device and a context
-    void *dev = nullptr;
-    void *context = nullptr;
-    // alternatively, to specify the device feature level and/or the adapter to use
-    int featureLevel = 0;
-    quint32 adapterLuidLow = 0;
-    qint32 adapterLuidHigh = 0;
+    QD3D11RenderBuffer(QRhiImplementation *rhi, Type type, const QSize &pixelSize,
+                       int sampleCount, QRhiRenderBuffer::Flags flags,
+                       QRhiTexture::Format backingFormatHint);
+    ~QD3D11RenderBuffer();
+    void destroy() override;
+    bool create() override;
+    QRhiTexture::Format backingFormat() const override;
+
+    ID3D11Texture2D *tex = nullptr;
+    ID3D11DepthStencilView *dsv = nullptr;
+    ID3D11RenderTargetView *rtv = nullptr;
+    DXGI_FORMAT dxgiFormat;
+    DXGI_SAMPLE_DESC sampleDesc;
+    uint generation = 0;
+    friend class QRhiD3D11;
 };
 
+struct QD3D11Texture : public QRhiTexture
+{
+    QD3D11Texture(QRhiImplementation *rhi, Format format, const QSize &pixelSize, int depth,
+                  int arraySize, int sampleCount, Flags flags);
+    ~QD3D11Texture();
+    void destroy() override;
+    bool create() override;
+    bool createFrom(NativeTexture src) override;
+    NativeTexture nativeTexture() override;
+
+    bool prepareCreate(QSize *adjustedSize = nullptr);
+    bool finishCreate();
+    ID3D11UnorderedAccessView *unorderedAccessViewForLevel(int level);
+    ID3D11Resource *textureResource() const
+    {
+        if (tex)
+            return tex;
+        else if (tex1D)
+            return tex1D;
+        return tex3D;
+    }
+
+    ID3D11Texture2D *tex = nullptr;
+    ID3D11Texture3D *tex3D = nullptr;
+    ID3D11Texture1D *tex1D = nullptr;
+    bool owns = true;
+    ID3D11ShaderResourceView *srv = nullptr;
+    DXGI_FORMAT dxgiFormat;
+    uint mipLevelCount = 0;
+    DXGI_SAMPLE_DESC sampleDesc;
+    ID3D11UnorderedAccessView *perLevelViews[QRhi::MAX_MIP_LEVELS];
+    uint generation = 0;
+    friend class QRhiD3D11;
+};
+
+struct QD3D11Sampler : public QRhiSampler
+{
+    QD3D11Sampler(QRhiImplementation *rhi, Filter magFilter, Filter minFilter, Filter mipmapMode,
+                  AddressMode u, AddressMode v, AddressMode w);
+    ~QD3D11Sampler();
+    void destroy() override;
+    bool create() override;
+
+    ID3D11SamplerState *samplerState = nullptr;
+    uint generation = 0;
+    friend class QRhiD3D11;
+};
+
+struct QD3D11RenderPassDescriptor : public QRhiRenderPassDescriptor
+{
+    QD3D11RenderPassDescriptor(QRhiImplementation *rhi);
+    ~QD3D11RenderPassDescriptor();
+    void destroy() override;
+    bool isCompatible(const QRhiRenderPassDescriptor *other) const override;
+    QRhiRenderPassDescriptor *newCompatibleRenderPassDescriptor() const override;
+    QVector<quint32> serializedFormat() const override;
+};
+
+struct QD3D11RenderTargetData
+{
+    QD3D11RenderTargetData(QRhiImplementation *)
+    {
+        for (int i = 0; i < MAX_COLOR_ATTACHMENTS; ++i)
+            rtv[i] = nullptr;
+    }
+
+    QD3D11RenderPassDescriptor *rp = nullptr;
+    QSize pixelSize;
+    float dpr = 1;
+    int sampleCount = 1;
+    int colorAttCount = 0;
+    int dsAttCount = 0;
+
+    static const int MAX_COLOR_ATTACHMENTS = 8;
+    ID3D11RenderTargetView *rtv[MAX_COLOR_ATTACHMENTS];
+    ID3D11DepthStencilView *dsv = nullptr;
+
+    QRhiRenderTargetAttachmentTracker::ResIdList currentResIdList;
+};
+
+struct QD3D11SwapChainRenderTarget : public QRhiSwapChainRenderTarget
+{
+    QD3D11SwapChainRenderTarget(QRhiImplementation *rhi, QRhiSwapChain *swapchain);
+    ~QD3D11SwapChainRenderTarget();
+    void destroy() override;
+
+    QSize pixelSize() const override;
+    float devicePixelRatio() const override;
+    int sampleCount() const override;
+
+    QD3D11RenderTargetData d;
+};
+
+struct QD3D11TextureRenderTarget : public QRhiTextureRenderTarget
+{
+    QD3D11TextureRenderTarget(QRhiImplementation *rhi, const QRhiTextureRenderTargetDescription &desc, Flags flags);
+    ~QD3D11TextureRenderTarget();
+    void destroy() override;
+
+    QSize pixelSize() const override;
+    float devicePixelRatio() const override;
+    int sampleCount() const override;
+
+    QRhiRenderPassDescriptor *newCompatibleRenderPassDescriptor() override;
+    bool create() override;
+
+    QD3D11RenderTargetData d;
+    bool ownsRtv[QD3D11RenderTargetData::MAX_COLOR_ATTACHMENTS];
+    ID3D11RenderTargetView *rtv[QD3D11RenderTargetData::MAX_COLOR_ATTACHMENTS];
+    bool ownsDsv = false;
+    ID3D11DepthStencilView *dsv = nullptr;
+    friend class QRhiD3D11;
+};
+
+struct QD3D11ShaderResourceBindings : public QRhiShaderResourceBindings
+{
+    QD3D11ShaderResourceBindings(QRhiImplementation *rhi);
+    ~QD3D11ShaderResourceBindings();
+    void destroy() override;
+    bool create() override;
+    void updateResources(UpdateFlags flags) override;
+
+    bool hasDynamicOffset = false;
+    QVarLengthArray<QRhiShaderResourceBinding, 8> sortedBindings;
+    uint generation = 0;
+
+    // Keep track of the generation number of each referenced QRhi* to be able
+    // to detect that the batched bindings are out of date.
+    struct BoundUniformBufferData {
+        quint64 id;
+        uint generation;
+    };
+    struct BoundSampledTextureData {
+        int count;
+        struct {
+            quint64 texId;
+            uint texGeneration;
+            quint64 samplerId;
+            uint samplerGeneration;
+        } d[QRhiShaderResourceBinding::Data::MAX_TEX_SAMPLER_ARRAY_SIZE];
+    };
+    struct BoundStorageImageData {
+        quint64 id;
+        uint generation;
+    };
+    struct BoundStorageBufferData {
+        quint64 id;
+        uint generation;
+    };
+    struct BoundResourceData {
+        union {
+            BoundUniformBufferData ubuf;
+            BoundSampledTextureData stex;
+            BoundStorageImageData simage;
+            BoundStorageBufferData sbuf;
+        };
+    };
+    QVarLengthArray<BoundResourceData, 8> boundResourceData;
+
+    struct StageUniformBufferBatches {
+        bool present = false;
+        QRhiBatchedBindings<ID3D11Buffer *> ubufs;
+        QRhiBatchedBindings<UINT> ubuforigbindings;
+        QRhiBatchedBindings<UINT> ubufoffsets;
+        QRhiBatchedBindings<UINT> ubufsizes;
+        void finish() {
+            present = ubufs.finish();
+            ubuforigbindings.finish();
+            ubufoffsets.finish();
+            ubufsizes.finish();
+        }
+        void clear() {
+            ubufs.clear();
+            ubuforigbindings.clear();
+            ubufoffsets.clear();
+            ubufsizes.clear();
+        }
+    };
+
+    struct StageSamplerBatches {
+        bool present = false;
+        QRhiBatchedBindings<ID3D11SamplerState *> samplers;
+        QRhiBatchedBindings<ID3D11ShaderResourceView *> shaderresources;
+        void finish() {
+            present = samplers.finish();
+            shaderresources.finish();
+        }
+        void clear() {
+            samplers.clear();
+            shaderresources.clear();
+        }
+    };
+
+    struct StageUavBatches {
+        bool present = false;
+        QRhiBatchedBindings<ID3D11UnorderedAccessView *> uavs;
+        void finish() {
+            present = uavs.finish();
+        }
+        void clear() {
+            uavs.clear();
+        }
+    };
+
+    StageUniformBufferBatches vsUniformBufferBatches;
+    StageUniformBufferBatches hsUniformBufferBatches;
+    StageUniformBufferBatches dsUniformBufferBatches;
+    StageUniformBufferBatches gsUniformBufferBatches;
+    StageUniformBufferBatches fsUniformBufferBatches;
+    StageUniformBufferBatches csUniformBufferBatches;
+
+    StageSamplerBatches vsSamplerBatches;
+    StageSamplerBatches hsSamplerBatches;
+    StageSamplerBatches dsSamplerBatches;
+    StageSamplerBatches gsSamplerBatches;
+    StageSamplerBatches fsSamplerBatches;
+    StageSamplerBatches csSamplerBatches;
+
+    StageUavBatches csUavBatches;
+
+    friend class QRhiD3D11;
+};
+
+Q_DECLARE_TYPEINFO(QD3D11ShaderResourceBindings::BoundResourceData, Q_RELOCATABLE_TYPE);
+
+struct QD3D11GraphicsPipeline : public QRhiGraphicsPipeline
+{
+    QD3D11GraphicsPipeline(QRhiImplementation *rhi);
+    ~QD3D11GraphicsPipeline();
+    void destroy() override;
+    bool create() override;
+
+    ID3D11DepthStencilState *dsState = nullptr;
+    ID3D11BlendState *blendState = nullptr;
+    struct {
+        ID3D11VertexShader *shader = nullptr;
+        QShader::NativeResourceBindingMap nativeResourceBindingMap;
+    } vs;
+    struct {
+        ID3D11HullShader *shader = nullptr;
+        QShader::NativeResourceBindingMap nativeResourceBindingMap;
+    } hs;
+    struct {
+        ID3D11DomainShader *shader = nullptr;
+        QShader::NativeResourceBindingMap nativeResourceBindingMap;
+    } ds;
+    struct {
+        ID3D11GeometryShader *shader = nullptr;
+        QShader::NativeResourceBindingMap nativeResourceBindingMap;
+    } gs;
+    struct {
+        ID3D11PixelShader *shader = nullptr;
+        QShader::NativeResourceBindingMap nativeResourceBindingMap;
+    } fs;
+    ID3D11InputLayout *inputLayout = nullptr;
+    D3D11_PRIMITIVE_TOPOLOGY d3dTopology = D3D11_PRIMITIVE_TOPOLOGY_TRIANGLELIST;
+    ID3D11RasterizerState *rastState = nullptr;
+    uint generation = 0;
+    friend class QRhiD3D11;
+};
+
+struct QD3D11ComputePipeline : public QRhiComputePipeline
+{
+    QD3D11ComputePipeline(QRhiImplementation *rhi);
+    ~QD3D11ComputePipeline();
+    void destroy() override;
+    bool create() override;
+
+    struct {
+        ID3D11ComputeShader *shader = nullptr;
+        QShader::NativeResourceBindingMap nativeResourceBindingMap;
+    } cs;
+    uint generation = 0;
+    friend class QRhiD3D11;
+};
+
+struct QD3D11SwapChain;
+
+struct QD3D11CommandBuffer : public QRhiCommandBuffer
+{
+    QD3D11CommandBuffer(QRhiImplementation *rhi);
+    ~QD3D11CommandBuffer();
+    void destroy() override;
+
+    // these must be kept at a reasonably low value otherwise sizeof Command explodes
+    static const int MAX_DYNAMIC_OFFSET_COUNT = 8;
+    static const int MAX_VERTEX_BUFFER_BINDING_COUNT = 8;
+
+    struct Command {
+        enum Cmd {
+            ResetShaderResources,
+            SetRenderTarget,
+            Clear,
+            Viewport,
+            Scissor,
+            BindVertexBuffers,
+            BindIndexBuffer,
+            BindGraphicsPipeline,
+            BindShaderResources,
+            StencilRef,
+            BlendConstants,
+            Draw,
+            DrawIndexed,
+            UpdateSubRes,
+            CopySubRes,
+            ResolveSubRes,
+            GenMip,
+            DebugMarkBegin,
+            DebugMarkEnd,
+            DebugMarkMsg,
+            BindComputePipeline,
+            Dispatch
+        };
+        enum ClearFlag { Color = 1, Depth = 2, Stencil = 4 };
+        Cmd cmd;
+
+        // QRhi*/QD3D11* references should be kept at minimum (so no
+        // QRhiTexture/Buffer/etc. pointers).
+        union Args {
+            struct {
+                QRhiRenderTarget *rt;
+            } setRenderTarget;
+            struct {
+                QRhiRenderTarget *rt;
+                int mask;
+                float c[4];
+                float d;
+                quint32 s;
+            } clear;
+            struct {
+                float x, y, w, h;
+                float d0, d1;
+            } viewport;
+            struct {
+                int x, y, w, h;
+            } scissor;
+            struct {
+                int startSlot;
+                int slotCount;
+                ID3D11Buffer *buffers[MAX_VERTEX_BUFFER_BINDING_COUNT];
+                UINT offsets[MAX_VERTEX_BUFFER_BINDING_COUNT];
+                UINT strides[MAX_VERTEX_BUFFER_BINDING_COUNT];
+            } bindVertexBuffers;
+            struct {
+                ID3D11Buffer *buffer;
+                quint32 offset;
+                DXGI_FORMAT format;
+            } bindIndexBuffer;
+            struct {
+                QD3D11GraphicsPipeline *ps;
+            } bindGraphicsPipeline;
+            struct {
+                QD3D11ShaderResourceBindings *srb;
+                bool offsetOnlyChange;
+                int dynamicOffsetCount;
+                uint dynamicOffsetPairs[MAX_DYNAMIC_OFFSET_COUNT * 2]; // binding, offsetInConstants
+            } bindShaderResources;
+            struct {
+                QD3D11GraphicsPipeline *ps;
+                quint32 ref;
+            } stencilRef;
+            struct {
+                QD3D11GraphicsPipeline *ps;
+                float c[4];
+            } blendConstants;
+            struct {
+                QD3D11GraphicsPipeline *ps;
+                quint32 vertexCount;
+                quint32 instanceCount;
+                quint32 firstVertex;
+                quint32 firstInstance;
+            } draw;
+            struct {
+                QD3D11GraphicsPipeline *ps;
+                quint32 indexCount;
+                quint32 instanceCount;
+                quint32 firstIndex;
+                qint32 vertexOffset;
+                quint32 firstInstance;
+            } drawIndexed;
+            struct {
+                ID3D11Resource *dst;
+                UINT dstSubRes;
+                bool hasDstBox;
+                D3D11_BOX dstBox;
+                const void *src; // must come from retain*()
+                UINT srcRowPitch;
+            } updateSubRes;
+            struct {
+                ID3D11Resource *dst;
+                UINT dstSubRes;
+                UINT dstX;
+                UINT dstY;
+                UINT dstZ;
+                ID3D11Resource *src;
+                UINT srcSubRes;
+                bool hasSrcBox;
+                D3D11_BOX srcBox;
+            } copySubRes;
+            struct {
+                ID3D11Resource *dst;
+                UINT dstSubRes;
+                ID3D11Resource *src;
+                UINT srcSubRes;
+                DXGI_FORMAT format;
+            } resolveSubRes;
+            struct {
+                ID3D11ShaderResourceView *srv;
+            } genMip;
+            struct {
+                char s[64];
+            } debugMark;
+            struct {
+                QD3D11ComputePipeline *ps;
+            } bindComputePipeline;
+            struct {
+                UINT x;
+                UINT y;
+                UINT z;
+            } dispatch;
+        } args;
+    };
+
+    enum PassType {
+        NoPass,
+        RenderPass,
+        ComputePass
+    };
+
+    QRhiBackendCommandList<Command> commands;
+    PassType recordingPass;
+    double lastGpuTime = 0;
+    QRhiRenderTarget *currentTarget;
+    QRhiGraphicsPipeline *currentGraphicsPipeline;
+    QRhiComputePipeline *currentComputePipeline;
+    uint currentPipelineGeneration;
+    QRhiShaderResourceBindings *currentGraphicsSrb;
+    QRhiShaderResourceBindings *currentComputeSrb;
+    uint currentSrbGeneration;
+    ID3D11Buffer *currentIndexBuffer;
+    quint32 currentIndexOffset;
+    DXGI_FORMAT currentIndexFormat;
+    ID3D11Buffer *currentVertexBuffers[D3D11_IA_VERTEX_INPUT_RESOURCE_SLOT_COUNT];
+    quint32 currentVertexOffsets[D3D11_IA_VERTEX_INPUT_RESOURCE_SLOT_COUNT];
+
+    QVarLengthArray<QByteArray, 4> dataRetainPool;
+    QVarLengthArray<QRhiBufferData, 4> bufferDataRetainPool;
+    QVarLengthArray<QImage, 4> imageRetainPool;
+
+    // relies heavily on implicit sharing (no copies of the actual data will be made)
+    const uchar *retainData(const QByteArray &data) {
+        dataRetainPool.append(data);
+        return reinterpret_cast<const uchar *>(dataRetainPool.last().constData());
+    }
+    const uchar *retainBufferData(const QRhiBufferData &data) {
+        bufferDataRetainPool.append(data);
+        return reinterpret_cast<const uchar *>(bufferDataRetainPool.last().constData());
+    }
+    const uchar *retainImage(const QImage &image) {
+        imageRetainPool.append(image);
+        return imageRetainPool.last().constBits();
+    }
+    void resetCommands() {
+        commands.reset();
+        dataRetainPool.clear();
+        bufferDataRetainPool.clear();
+        imageRetainPool.clear();
+    }
+    void resetState() {
+        recordingPass = NoPass;
+        // do not zero lastGpuTime
+        currentTarget = nullptr;
+        resetCommands();
+        resetCachedState();
+    }
+    void resetCachedState() {
+        currentGraphicsPipeline = nullptr;
+        currentComputePipeline = nullptr;
+        currentPipelineGeneration = 0;
+        currentGraphicsSrb = nullptr;
+        currentComputeSrb = nullptr;
+        currentSrbGeneration = 0;
+        currentIndexBuffer = nullptr;
+        currentIndexOffset = 0;
+        currentIndexFormat = DXGI_FORMAT_R16_UINT;
+        memset(currentVertexBuffers, 0, sizeof(currentVertexBuffers));
+        memset(currentVertexOffsets, 0, sizeof(currentVertexOffsets));
+    }
+};
+
+static const int QD3D11_SWAPCHAIN_BUFFER_COUNT = 2;
+
+struct QD3D11Timestamps
+{
+    static const int MAX_TIMESTAMP_PAIRS = QD3D11_SWAPCHAIN_BUFFER_COUNT;
+    bool active[MAX_TIMESTAMP_PAIRS] = {};
+    ID3D11Query *disjointQuery[MAX_TIMESTAMP_PAIRS] = {};
+    ID3D11Query *query[MAX_TIMESTAMP_PAIRS * 2] = {};
+    int pairCount = 0;
+
+    bool prepare(int pairCount, QRhiD3D11 *rhiD);
+    void destroy();
+    bool tryQueryTimestamps(int idx, ID3D11DeviceContext *context, double *elapsedSec);
+};
+
+struct QD3D11SwapChain : public QRhiSwapChain
+{
+    QD3D11SwapChain(QRhiImplementation *rhi);
+    ~QD3D11SwapChain();
+    void destroy() override;
+
+    QRhiCommandBuffer *currentFrameCommandBuffer() override;
+    QRhiRenderTarget *currentFrameRenderTarget() override;
+
+    QSize surfacePixelSize() override;
+    bool isFormatSupported(Format f) override;
+    QRhiSwapChainHdrInfo hdrInfo() override;
+
+    QRhiRenderPassDescriptor *newCompatibleRenderPassDescriptor() override;
+    bool createOrResize() override;
+
+    bool createOrResizeWin7();
+
+    void releaseBuffers();
+    bool newColorBuffer(const QSize &size, DXGI_FORMAT format, DXGI_SAMPLE_DESC sampleDesc,
+                        ID3D11Texture2D **tex, ID3D11RenderTargetView **rtv) const;
+
+    QWindow *window = nullptr;
+    QSize pixelSize;
+    QD3D11SwapChainRenderTarget rt;
+    QD3D11CommandBuffer cb;
+    DXGI_FORMAT colorFormat;
+    DXGI_FORMAT srgbAdjustedColorFormat;
+    IDXGISwapChain *swapChain = nullptr;
+    UINT swapChainFlags = 0;
+    ID3D11Texture2D *backBufferTex;
+    ID3D11RenderTargetView *backBufferRtv;
+    static const int BUFFER_COUNT = QD3D11_SWAPCHAIN_BUFFER_COUNT;
+    ID3D11Texture2D *msaaTex[BUFFER_COUNT];
+    ID3D11RenderTargetView *msaaRtv[BUFFER_COUNT];
+    DXGI_SAMPLE_DESC sampleDesc;
+    int currentFrameSlot = 0;
+    int frameCount = 0;
+    QD3D11RenderBuffer *ds = nullptr;
+    UINT swapInterval = 1;
+    IDCompositionTarget *dcompTarget = nullptr;
+    IDCompositionVisual *dcompVisual = nullptr;
+    QD3D11Timestamps timestamps;
+};
+
+class QRhiD3D11 : public QRhiImplementation
+{
+public:
+    QRhiD3D11(QRhiD3D11InitParams *params, QRhiD3D11NativeHandles *importDevice = nullptr);
+
+    bool create(QRhi::Flags flags) override;
+    void destroy() override;
+
+    QRhiGraphicsPipeline *createGraphicsPipeline() override;
+    QRhiComputePipeline *createComputePipeline() override;
+    QRhiShaderResourceBindings *createShaderResourceBindings() override;
+    QRhiBuffer *createBuffer(QRhiBuffer::Type type,
+                             QRhiBuffer::UsageFlags usage,
+                             quint32 size) override;
+    QRhiRenderBuffer *createRenderBuffer(QRhiRenderBuffer::Type type,
+                                         const QSize &pixelSize,
+                                         int sampleCount,
+                                         QRhiRenderBuffer::Flags flags,
+                                         QRhiTexture::Format backingFormatHint) override;
+    QRhiTexture *createTexture(QRhiTexture::Format format,
+                               const QSize &pixelSize,
+                               int depth,
+                               int arraySize,
+                               int sampleCount,
+                               QRhiTexture::Flags flags) override;
+    QRhiSampler *createSampler(QRhiSampler::Filter magFilter,
+                               QRhiSampler::Filter minFilter,
+                               QRhiSampler::Filter mipmapMode,
+                               QRhiSampler:: AddressMode u,
+                               QRhiSampler::AddressMode v,
+                               QRhiSampler::AddressMode w) override;
+
+    QRhiTextureRenderTarget *createTextureRenderTarget(const QRhiTextureRenderTargetDescription &desc,
+                                                       QRhiTextureRenderTarget::Flags flags) override;
+
+    QRhiSwapChain *createSwapChain() override;
+    QRhi::FrameOpResult beginFrame(QRhiSwapChain *swapChain, QRhi::BeginFrameFlags flags) override;
+    QRhi::FrameOpResult endFrame(QRhiSwapChain *swapChain, QRhi::EndFrameFlags flags) override;
+    QRhi::FrameOpResult beginOffscreenFrame(QRhiCommandBuffer **cb, QRhi::BeginFrameFlags flags) override;
+    QRhi::FrameOpResult endOffscreenFrame(QRhi::EndFrameFlags flags) override;
+    QRhi::FrameOpResult finish() override;
+
+    void resourceUpdate(QRhiCommandBuffer *cb, QRhiResourceUpdateBatch *resourceUpdates) override;
+
+    void beginPass(QRhiCommandBuffer *cb,
+                   QRhiRenderTarget *rt,
+                   const QColor &colorClearValue,
+                   const QRhiDepthStencilClearValue &depthStencilClearValue,
+                   QRhiResourceUpdateBatch *resourceUpdates,
+                   QRhiCommandBuffer::BeginPassFlags flags) override;
+    void endPass(QRhiCommandBuffer *cb, QRhiResourceUpdateBatch *resourceUpdates) override;
+
+    void setGraphicsPipeline(QRhiCommandBuffer *cb,
+                             QRhiGraphicsPipeline *ps) override;
+
+    void setShaderResources(QRhiCommandBuffer *cb,
+                            QRhiShaderResourceBindings *srb,
+                            int dynamicOffsetCount,
+                            const QRhiCommandBuffer::DynamicOffset *dynamicOffsets) override;
+
+    void setVertexInput(QRhiCommandBuffer *cb,
+                        int startBinding, int bindingCount, const QRhiCommandBuffer::VertexInput *bindings,
+                        QRhiBuffer *indexBuf, quint32 indexOffset,
+                        QRhiCommandBuffer::IndexFormat indexFormat) override;
+
+    void setViewport(QRhiCommandBuffer *cb, const QRhiViewport &viewport) override;
+    void setScissor(QRhiCommandBuffer *cb, const QRhiScissor &scissor) override;
+    void setBlendConstants(QRhiCommandBuffer *cb, const QColor &c) override;
+    void setStencilRef(QRhiCommandBuffer *cb, quint32 refValue) override;
+
+    void draw(QRhiCommandBuffer *cb, quint32 vertexCount,
+              quint32 instanceCount, quint32 firstVertex, quint32 firstInstance) override;
+
+    void drawIndexed(QRhiCommandBuffer *cb, quint32 indexCount,
+                     quint32 instanceCount, quint32 firstIndex,
+                     qint32 vertexOffset, quint32 firstInstance) override;
+
+    void debugMarkBegin(QRhiCommandBuffer *cb, const QByteArray &name) override;
+    void debugMarkEnd(QRhiCommandBuffer *cb) override;
+    void debugMarkMsg(QRhiCommandBuffer *cb, const QByteArray &msg) override;
+
+    void beginComputePass(QRhiCommandBuffer *cb,
+                          QRhiResourceUpdateBatch *resourceUpdates,
+                          QRhiCommandBuffer::BeginPassFlags flags) override;
+    void endComputePass(QRhiCommandBuffer *cb, QRhiResourceUpdateBatch *resourceUpdates) override;
+    void setComputePipeline(QRhiCommandBuffer *cb, QRhiComputePipeline *ps) override;
+    void dispatch(QRhiCommandBuffer *cb, int x, int y, int z) override;
+
+    const QRhiNativeHandles *nativeHandles(QRhiCommandBuffer *cb) override;
+    void beginExternal(QRhiCommandBuffer *cb) override;
+    void endExternal(QRhiCommandBuffer *cb) override;
+    double lastCompletedGpuTime(QRhiCommandBuffer *cb) override;
+
+    QList<int> supportedSampleCounts() const override;
+    int ubufAlignment() const override;
+    bool isYUpInFramebuffer() const override;
+    bool isYUpInNDC() const override;
+    bool isClipDepthZeroToOne() const override;
+    QMatrix4x4 clipSpaceCorrMatrix() const override;
+    bool isTextureFormatSupported(QRhiTexture::Format format, QRhiTexture::Flags flags) const override;
+    bool isFeatureSupported(QRhi::Feature feature) const override;
+    int resourceLimit(QRhi::ResourceLimit limit) const override;
+    const QRhiNativeHandles *nativeHandles() override;
+    QRhiDriverInfo driverInfo() const override;
+    QRhiStats statistics() override;
+    bool makeThreadLocalNativeContextCurrent() override;
+    void releaseCachedResources() override;
+    bool isDeviceLost() const override;
+
+    QByteArray pipelineCacheData() override;
+    void setPipelineCacheData(const QByteArray &data) override;
+
+    void enqueueSubresUpload(QD3D11Texture *texD, QD3D11CommandBuffer *cbD,
+                             int layer, int level, const QRhiTextureSubresourceUploadDescription &subresDesc);
+    void enqueueResourceUpdates(QRhiCommandBuffer *cb, QRhiResourceUpdateBatch *resourceUpdates);
+    void updateShaderResourceBindings(QD3D11ShaderResourceBindings *srbD,
+                                      const QShader::NativeResourceBindingMap *nativeResourceBindingMaps[]);
+    void executeBufferHostWrites(QD3D11Buffer *bufD);
+    void bindShaderResources(QD3D11ShaderResourceBindings *srbD,
+                             const uint *dynOfsPairs, int dynOfsPairCount,
+                             bool offsetOnlyChange);
+    void resetShaderResources();
+    void executeCommandBuffer(QD3D11CommandBuffer *cbD, QD3D11SwapChain *timestampSwapChain = nullptr);
+    DXGI_SAMPLE_DESC effectiveSampleCount(int sampleCount) const;
+    void finishActiveReadbacks();
+    void reportLiveObjects(ID3D11Device *device);
+    void clearShaderCache();
+    QByteArray compileHlslShaderSource(const QShader &shader, QShader::Variant shaderVariant, uint flags,
+                                       QString *error, QShaderKey *usedShaderKey);
+    bool ensureDirectCompositionDevice();
+
+    QRhi::Flags rhiFlags;
+    bool debugLayer = false;
+    bool importedDeviceAndContext = false;
+    ID3D11Device *dev = nullptr;
+    ID3D11DeviceContext1 *context = nullptr;
+    D3D_FEATURE_LEVEL featureLevel = D3D_FEATURE_LEVEL(0);
+    LUID adapterLuid = {};
+    ID3DUserDefinedAnnotation *annotations = nullptr;
+    IDXGIAdapter1 *activeAdapter = nullptr;
+    IDXGIFactory1 *dxgiFactory = nullptr;
+    IDCompositionDevice *dcompDevice = nullptr;
+    bool supportsAllowTearing = false;
+    bool deviceLost = false;
+    QRhiD3D11NativeHandles nativeHandlesStruct;
+    QRhiDriverInfo driverInfoStruct;
+
+    struct {
+        int vsHighestActiveVertexBufferBinding = -1;
+        bool vsHasIndexBufferBound = false;
+        int vsHighestActiveSrvBinding = -1;
+        int hsHighestActiveSrvBinding = -1;
+        int dsHighestActiveSrvBinding = -1;
+        int gsHighestActiveSrvBinding = -1;
+        int fsHighestActiveSrvBinding = -1;
+        int csHighestActiveSrvBinding = -1;
+        int csHighestActiveUavBinding = -1;
+        QD3D11SwapChain *currentSwapChain = nullptr;
+    } contextState;
+
+    struct OffscreenFrame {
+        OffscreenFrame(QRhiImplementation *rhi) : cbWrapper(rhi) { }
+        bool active = false;
+        QD3D11CommandBuffer cbWrapper;
+        QD3D11Timestamps timestamps;
+        int timestampIdx = 0;
+    } ofr;
+
+    struct TextureReadback {
+        QRhiReadbackDescription desc;
+        QRhiReadbackResult *result;
+        ID3D11Texture2D *stagingTex;
+        quint32 byteSize;
+        quint32 bpl;
+        QSize pixelSize;
+        QRhiTexture::Format format;
+    };
+    QVarLengthArray<TextureReadback, 2> activeTextureReadbacks;
+    struct BufferReadback {
+        QRhiReadbackResult *result;
+        quint32 byteSize;
+        ID3D11Buffer *stagingBuf;
+    };
+    QVarLengthArray<BufferReadback, 2> activeBufferReadbacks;
+
+    struct Shader {
+        Shader() = default;
+        Shader(IUnknown *s, const QByteArray &bytecode, const QShader::NativeResourceBindingMap &rbm)
+            : s(s), bytecode(bytecode), nativeResourceBindingMap(rbm) { }
+        IUnknown *s;
+        QByteArray bytecode;
+        QShader::NativeResourceBindingMap nativeResourceBindingMap;
+    };
+    QHash<QRhiShaderStage, Shader> m_shaderCache;
+
+    // This is what gets exposed as the "pipeline cache", not that that concept
+    // applies anyway. Here we are just storing the DX bytecode for a shader so
+    // we can skip the HLSL->DXBC compilation when the QShader has HLSL source
+    // code and the same shader source has already been compiled before.
+    // m_shaderCache seemingly does the same, but this here does not care about
+    // the ID3D11*Shader, this is just about the bytecode and about allowing
+    // the data to be serialized to persistent storage and then reloaded in
+    // future runs of the app, or when creating another QRhi, etc.
+    struct BytecodeCacheKey {
+        QByteArray sourceHash;
+        QByteArray target;
+        QByteArray entryPoint;
+        uint compileFlags;
+    };
+    QHash<BytecodeCacheKey, QByteArray> m_bytecodeCache;
+};
+
+Q_DECLARE_TYPEINFO(QRhiD3D11::TextureReadback, Q_RELOCATABLE_TYPE);
+Q_DECLARE_TYPEINFO(QRhiD3D11::BufferReadback, Q_RELOCATABLE_TYPE);
+
+inline bool operator==(const QRhiD3D11::BytecodeCacheKey &a, const QRhiD3D11::BytecodeCacheKey &b) noexcept
+{
+    return a.sourceHash == b.sourceHash
+            && a.target == b.target
+            && a.entryPoint == b.entryPoint
+            && a.compileFlags == b.compileFlags;
+}
+
+inline bool operator!=(const QRhiD3D11::BytecodeCacheKey &a, const QRhiD3D11::BytecodeCacheKey &b) noexcept
+{
+    return !(a == b);
+}
+
+inline size_t qHash(const QRhiD3D11::BytecodeCacheKey &k, size_t seed = 0) noexcept
+{
+    return qHash(k.sourceHash, seed) ^ qHash(k.target) ^ qHash(k.entryPoint) ^ k.compileFlags;
+}
+
 QT_END_NAMESPACE
 
 #endif
diff --git a/src/gui/rhi/qrhid3d11_p_p.h b/src/gui/rhi/qrhid3d11_p_p.h
deleted file mode 100644
index e1d7559f..00000000
--- a/src/gui/rhi/qrhid3d11_p_p.h
+++ /dev/null
@@ -1,850 +0,0 @@
-// Copyright (C) 2019 The Qt Company Ltd.
-// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
-
-#ifndef QRHID3D11_P_H
-#define QRHID3D11_P_H
-
-//
-//  W A R N I N G
-//  -------------
-//
-// This file is not part of the Qt API.  It exists purely as an
-// implementation detail.  This header file may change from version to
-// version without notice, or even be removed.
-//
-// We mean it.
-//
-
-#include "qrhid3d11_p.h"
-#include "qrhi_p_p.h"
-#include "qshaderdescription_p.h"
-#include <QWindow>
-
-#include <d3d11_1.h>
-#include <dxgi1_6.h>
-#include <dcomp.h>
-
-QT_BEGIN_NAMESPACE
-
-struct QD3D11Buffer : public QRhiBuffer
-{
-    QD3D11Buffer(QRhiImplementation *rhi, Type type, UsageFlags usage, quint32 size);
-    ~QD3D11Buffer();
-    void destroy() override;
-    bool create() override;
-    QRhiBuffer::NativeBuffer nativeBuffer() override;
-    char *beginFullDynamicBufferUpdateForCurrentFrame() override;
-    void endFullDynamicBufferUpdateForCurrentFrame() override;
-
-    ID3D11UnorderedAccessView *unorderedAccessView(quint32 offset);
-
-    ID3D11Buffer *buffer = nullptr;
-    char *dynBuf = nullptr;
-    bool hasPendingDynamicUpdates = false;
-    QHash<quint32, ID3D11UnorderedAccessView *> uavs;
-    uint generation = 0;
-    friend class QRhiD3D11;
-};
-
-struct QD3D11RenderBuffer : public QRhiRenderBuffer
-{
-    QD3D11RenderBuffer(QRhiImplementation *rhi, Type type, const QSize &pixelSize,
-                       int sampleCount, QRhiRenderBuffer::Flags flags,
-                       QRhiTexture::Format backingFormatHint);
-    ~QD3D11RenderBuffer();
-    void destroy() override;
-    bool create() override;
-    QRhiTexture::Format backingFormat() const override;
-
-    ID3D11Texture2D *tex = nullptr;
-    ID3D11DepthStencilView *dsv = nullptr;
-    ID3D11RenderTargetView *rtv = nullptr;
-    DXGI_FORMAT dxgiFormat;
-    DXGI_SAMPLE_DESC sampleDesc;
-    uint generation = 0;
-    friend class QRhiD3D11;
-};
-
-struct QD3D11Texture : public QRhiTexture
-{
-    QD3D11Texture(QRhiImplementation *rhi, Format format, const QSize &pixelSize, int depth,
-                  int arraySize, int sampleCount, Flags flags);
-    ~QD3D11Texture();
-    void destroy() override;
-    bool create() override;
-    bool createFrom(NativeTexture src) override;
-    NativeTexture nativeTexture() override;
-
-    bool prepareCreate(QSize *adjustedSize = nullptr);
-    bool finishCreate();
-    ID3D11UnorderedAccessView *unorderedAccessViewForLevel(int level);
-    ID3D11Resource *textureResource() const
-    {
-        if (tex)
-            return tex;
-        else if (tex1D)
-            return tex1D;
-        return tex3D;
-    }
-
-    ID3D11Texture2D *tex = nullptr;
-    ID3D11Texture3D *tex3D = nullptr;
-    ID3D11Texture1D *tex1D = nullptr;
-    bool owns = true;
-    ID3D11ShaderResourceView *srv = nullptr;
-    DXGI_FORMAT dxgiFormat;
-    uint mipLevelCount = 0;
-    DXGI_SAMPLE_DESC sampleDesc;
-    ID3D11UnorderedAccessView *perLevelViews[QRhi::MAX_MIP_LEVELS];
-    uint generation = 0;
-    friend class QRhiD3D11;
-};
-
-struct QD3D11Sampler : public QRhiSampler
-{
-    QD3D11Sampler(QRhiImplementation *rhi, Filter magFilter, Filter minFilter, Filter mipmapMode,
-                  AddressMode u, AddressMode v, AddressMode w);
-    ~QD3D11Sampler();
-    void destroy() override;
-    bool create() override;
-
-    ID3D11SamplerState *samplerState = nullptr;
-    uint generation = 0;
-    friend class QRhiD3D11;
-};
-
-struct QD3D11RenderPassDescriptor : public QRhiRenderPassDescriptor
-{
-    QD3D11RenderPassDescriptor(QRhiImplementation *rhi);
-    ~QD3D11RenderPassDescriptor();
-    void destroy() override;
-    bool isCompatible(const QRhiRenderPassDescriptor *other) const override;
-    QRhiRenderPassDescriptor *newCompatibleRenderPassDescriptor() const override;
-    QVector<quint32> serializedFormat() const override;
-};
-
-struct QD3D11RenderTargetData
-{
-    QD3D11RenderTargetData(QRhiImplementation *)
-    {
-        for (int i = 0; i < MAX_COLOR_ATTACHMENTS; ++i)
-            rtv[i] = nullptr;
-    }
-
-    QD3D11RenderPassDescriptor *rp = nullptr;
-    QSize pixelSize;
-    float dpr = 1;
-    int sampleCount = 1;
-    int colorAttCount = 0;
-    int dsAttCount = 0;
-
-    static const int MAX_COLOR_ATTACHMENTS = 8;
-    ID3D11RenderTargetView *rtv[MAX_COLOR_ATTACHMENTS];
-    ID3D11DepthStencilView *dsv = nullptr;
-
-    QRhiRenderTargetAttachmentTracker::ResIdList currentResIdList;
-};
-
-struct QD3D11SwapChainRenderTarget : public QRhiSwapChainRenderTarget
-{
-    QD3D11SwapChainRenderTarget(QRhiImplementation *rhi, QRhiSwapChain *swapchain);
-    ~QD3D11SwapChainRenderTarget();
-    void destroy() override;
-
-    QSize pixelSize() const override;
-    float devicePixelRatio() const override;
-    int sampleCount() const override;
-
-    QD3D11RenderTargetData d;
-};
-
-struct QD3D11TextureRenderTarget : public QRhiTextureRenderTarget
-{
-    QD3D11TextureRenderTarget(QRhiImplementation *rhi, const QRhiTextureRenderTargetDescription &desc, Flags flags);
-    ~QD3D11TextureRenderTarget();
-    void destroy() override;
-
-    QSize pixelSize() const override;
-    float devicePixelRatio() const override;
-    int sampleCount() const override;
-
-    QRhiRenderPassDescriptor *newCompatibleRenderPassDescriptor() override;
-    bool create() override;
-
-    QD3D11RenderTargetData d;
-    bool ownsRtv[QD3D11RenderTargetData::MAX_COLOR_ATTACHMENTS];
-    ID3D11RenderTargetView *rtv[QD3D11RenderTargetData::MAX_COLOR_ATTACHMENTS];
-    bool ownsDsv = false;
-    ID3D11DepthStencilView *dsv = nullptr;
-    friend class QRhiD3D11;
-};
-
-struct QD3D11ShaderResourceBindings : public QRhiShaderResourceBindings
-{
-    QD3D11ShaderResourceBindings(QRhiImplementation *rhi);
-    ~QD3D11ShaderResourceBindings();
-    void destroy() override;
-    bool create() override;
-    void updateResources(UpdateFlags flags) override;
-
-    bool hasDynamicOffset = false;
-    QVarLengthArray<QRhiShaderResourceBinding, 8> sortedBindings;
-    uint generation = 0;
-
-    // Keep track of the generation number of each referenced QRhi* to be able
-    // to detect that the batched bindings are out of date.
-    struct BoundUniformBufferData {
-        quint64 id;
-        uint generation;
-    };
-    struct BoundSampledTextureData {
-        int count;
-        struct {
-            quint64 texId;
-            uint texGeneration;
-            quint64 samplerId;
-            uint samplerGeneration;
-        } d[QRhiShaderResourceBinding::Data::MAX_TEX_SAMPLER_ARRAY_SIZE];
-    };
-    struct BoundStorageImageData {
-        quint64 id;
-        uint generation;
-    };
-    struct BoundStorageBufferData {
-        quint64 id;
-        uint generation;
-    };
-    struct BoundResourceData {
-        union {
-            BoundUniformBufferData ubuf;
-            BoundSampledTextureData stex;
-            BoundStorageImageData simage;
-            BoundStorageBufferData sbuf;
-        };
-    };
-    QVarLengthArray<BoundResourceData, 8> boundResourceData;
-
-    struct StageUniformBufferBatches {
-        bool present = false;
-        QRhiBatchedBindings<ID3D11Buffer *> ubufs;
-        QRhiBatchedBindings<UINT> ubuforigbindings;
-        QRhiBatchedBindings<UINT> ubufoffsets;
-        QRhiBatchedBindings<UINT> ubufsizes;
-        void finish() {
-            present = ubufs.finish();
-            ubuforigbindings.finish();
-            ubufoffsets.finish();
-            ubufsizes.finish();
-        }
-        void clear() {
-            ubufs.clear();
-            ubuforigbindings.clear();
-            ubufoffsets.clear();
-            ubufsizes.clear();
-        }
-    };
-
-    struct StageSamplerBatches {
-        bool present = false;
-        QRhiBatchedBindings<ID3D11SamplerState *> samplers;
-        QRhiBatchedBindings<ID3D11ShaderResourceView *> shaderresources;
-        void finish() {
-            present = samplers.finish();
-            shaderresources.finish();
-        }
-        void clear() {
-            samplers.clear();
-            shaderresources.clear();
-        }
-    };
-
-    struct StageUavBatches {
-        bool present = false;
-        QRhiBatchedBindings<ID3D11UnorderedAccessView *> uavs;
-        void finish() {
-            present = uavs.finish();
-        }
-        void clear() {
-            uavs.clear();
-        }
-    };
-
-    StageUniformBufferBatches vsUniformBufferBatches;
-    StageUniformBufferBatches hsUniformBufferBatches;
-    StageUniformBufferBatches dsUniformBufferBatches;
-    StageUniformBufferBatches gsUniformBufferBatches;
-    StageUniformBufferBatches fsUniformBufferBatches;
-    StageUniformBufferBatches csUniformBufferBatches;
-
-    StageSamplerBatches vsSamplerBatches;
-    StageSamplerBatches hsSamplerBatches;
-    StageSamplerBatches dsSamplerBatches;
-    StageSamplerBatches gsSamplerBatches;
-    StageSamplerBatches fsSamplerBatches;
-    StageSamplerBatches csSamplerBatches;
-
-    StageUavBatches csUavBatches;
-
-    friend class QRhiD3D11;
-};
-
-Q_DECLARE_TYPEINFO(QD3D11ShaderResourceBindings::BoundResourceData, Q_RELOCATABLE_TYPE);
-
-struct QD3D11GraphicsPipeline : public QRhiGraphicsPipeline
-{
-    QD3D11GraphicsPipeline(QRhiImplementation *rhi);
-    ~QD3D11GraphicsPipeline();
-    void destroy() override;
-    bool create() override;
-
-    ID3D11DepthStencilState *dsState = nullptr;
-    ID3D11BlendState *blendState = nullptr;
-    struct {
-        ID3D11VertexShader *shader = nullptr;
-        QShader::NativeResourceBindingMap nativeResourceBindingMap;
-    } vs;
-    struct {
-        ID3D11HullShader *shader = nullptr;
-        QShader::NativeResourceBindingMap nativeResourceBindingMap;
-    } hs;
-    struct {
-        ID3D11DomainShader *shader = nullptr;
-        QShader::NativeResourceBindingMap nativeResourceBindingMap;
-    } ds;
-    struct {
-        ID3D11GeometryShader *shader = nullptr;
-        QShader::NativeResourceBindingMap nativeResourceBindingMap;
-    } gs;
-    struct {
-        ID3D11PixelShader *shader = nullptr;
-        QShader::NativeResourceBindingMap nativeResourceBindingMap;
-    } fs;
-    ID3D11InputLayout *inputLayout = nullptr;
-    D3D11_PRIMITIVE_TOPOLOGY d3dTopology = D3D11_PRIMITIVE_TOPOLOGY_TRIANGLELIST;
-    ID3D11RasterizerState *rastState = nullptr;
-    uint generation = 0;
-    friend class QRhiD3D11;
-};
-
-struct QD3D11ComputePipeline : public QRhiComputePipeline
-{
-    QD3D11ComputePipeline(QRhiImplementation *rhi);
-    ~QD3D11ComputePipeline();
-    void destroy() override;
-    bool create() override;
-
-    struct {
-        ID3D11ComputeShader *shader = nullptr;
-        QShader::NativeResourceBindingMap nativeResourceBindingMap;
-    } cs;
-    uint generation = 0;
-    friend class QRhiD3D11;
-};
-
-struct QD3D11SwapChain;
-
-struct QD3D11CommandBuffer : public QRhiCommandBuffer
-{
-    QD3D11CommandBuffer(QRhiImplementation *rhi);
-    ~QD3D11CommandBuffer();
-    void destroy() override;
-
-    // these must be kept at a reasonably low value otherwise sizeof Command explodes
-    static const int MAX_DYNAMIC_OFFSET_COUNT = 8;
-    static const int MAX_VERTEX_BUFFER_BINDING_COUNT = 8;
-
-    struct Command {
-        enum Cmd {
-            ResetShaderResources,
-            SetRenderTarget,
-            Clear,
-            Viewport,
-            Scissor,
-            BindVertexBuffers,
-            BindIndexBuffer,
-            BindGraphicsPipeline,
-            BindShaderResources,
-            StencilRef,
-            BlendConstants,
-            Draw,
-            DrawIndexed,
-            UpdateSubRes,
-            CopySubRes,
-            ResolveSubRes,
-            GenMip,
-            DebugMarkBegin,
-            DebugMarkEnd,
-            DebugMarkMsg,
-            BindComputePipeline,
-            Dispatch
-        };
-        enum ClearFlag { Color = 1, Depth = 2, Stencil = 4 };
-        Cmd cmd;
-
-        // QRhi*/QD3D11* references should be kept at minimum (so no
-        // QRhiTexture/Buffer/etc. pointers).
-        union Args {
-            struct {
-                QRhiRenderTarget *rt;
-            } setRenderTarget;
-            struct {
-                QRhiRenderTarget *rt;
-                int mask;
-                float c[4];
-                float d;
-                quint32 s;
-            } clear;
-            struct {
-                float x, y, w, h;
-                float d0, d1;
-            } viewport;
-            struct {
-                int x, y, w, h;
-            } scissor;
-            struct {
-                int startSlot;
-                int slotCount;
-                ID3D11Buffer *buffers[MAX_VERTEX_BUFFER_BINDING_COUNT];
-                UINT offsets[MAX_VERTEX_BUFFER_BINDING_COUNT];
-                UINT strides[MAX_VERTEX_BUFFER_BINDING_COUNT];
-            } bindVertexBuffers;
-            struct {
-                ID3D11Buffer *buffer;
-                quint32 offset;
-                DXGI_FORMAT format;
-            } bindIndexBuffer;
-            struct {
-                QD3D11GraphicsPipeline *ps;
-            } bindGraphicsPipeline;
-            struct {
-                QD3D11ShaderResourceBindings *srb;
-                bool offsetOnlyChange;
-                int dynamicOffsetCount;
-                uint dynamicOffsetPairs[MAX_DYNAMIC_OFFSET_COUNT * 2]; // binding, offsetInConstants
-            } bindShaderResources;
-            struct {
-                QD3D11GraphicsPipeline *ps;
-                quint32 ref;
-            } stencilRef;
-            struct {
-                QD3D11GraphicsPipeline *ps;
-                float c[4];
-            } blendConstants;
-            struct {
-                QD3D11GraphicsPipeline *ps;
-                quint32 vertexCount;
-                quint32 instanceCount;
-                quint32 firstVertex;
-                quint32 firstInstance;
-            } draw;
-            struct {
-                QD3D11GraphicsPipeline *ps;
-                quint32 indexCount;
-                quint32 instanceCount;
-                quint32 firstIndex;
-                qint32 vertexOffset;
-                quint32 firstInstance;
-            } drawIndexed;
-            struct {
-                ID3D11Resource *dst;
-                UINT dstSubRes;
-                bool hasDstBox;
-                D3D11_BOX dstBox;
-                const void *src; // must come from retain*()
-                UINT srcRowPitch;
-            } updateSubRes;
-            struct {
-                ID3D11Resource *dst;
-                UINT dstSubRes;
-                UINT dstX;
-                UINT dstY;
-                UINT dstZ;
-                ID3D11Resource *src;
-                UINT srcSubRes;
-                bool hasSrcBox;
-                D3D11_BOX srcBox;
-            } copySubRes;
-            struct {
-                ID3D11Resource *dst;
-                UINT dstSubRes;
-                ID3D11Resource *src;
-                UINT srcSubRes;
-                DXGI_FORMAT format;
-            } resolveSubRes;
-            struct {
-                ID3D11ShaderResourceView *srv;
-            } genMip;
-            struct {
-                char s[64];
-            } debugMark;
-            struct {
-                QD3D11ComputePipeline *ps;
-            } bindComputePipeline;
-            struct {
-                UINT x;
-                UINT y;
-                UINT z;
-            } dispatch;
-        } args;
-    };
-
-    enum PassType {
-        NoPass,
-        RenderPass,
-        ComputePass
-    };
-
-    QRhiBackendCommandList<Command> commands;
-    PassType recordingPass;
-    QRhiRenderTarget *currentTarget;
-    QRhiGraphicsPipeline *currentGraphicsPipeline;
-    QRhiComputePipeline *currentComputePipeline;
-    uint currentPipelineGeneration;
-    QRhiShaderResourceBindings *currentGraphicsSrb;
-    QRhiShaderResourceBindings *currentComputeSrb;
-    uint currentSrbGeneration;
-    ID3D11Buffer *currentIndexBuffer;
-    quint32 currentIndexOffset;
-    DXGI_FORMAT currentIndexFormat;
-    ID3D11Buffer *currentVertexBuffers[D3D11_IA_VERTEX_INPUT_RESOURCE_SLOT_COUNT];
-    quint32 currentVertexOffsets[D3D11_IA_VERTEX_INPUT_RESOURCE_SLOT_COUNT];
-
-    QVarLengthArray<QByteArray, 4> dataRetainPool;
-    QVarLengthArray<QRhiBufferData, 4> bufferDataRetainPool;
-    QVarLengthArray<QImage, 4> imageRetainPool;
-
-    // relies heavily on implicit sharing (no copies of the actual data will be made)
-    const uchar *retainData(const QByteArray &data) {
-        dataRetainPool.append(data);
-        return reinterpret_cast<const uchar *>(dataRetainPool.last().constData());
-    }
-    const uchar *retainBufferData(const QRhiBufferData &data) {
-        bufferDataRetainPool.append(data);
-        return reinterpret_cast<const uchar *>(bufferDataRetainPool.last().constData());
-    }
-    const uchar *retainImage(const QImage &image) {
-        imageRetainPool.append(image);
-        return imageRetainPool.last().constBits();
-    }
-    void resetCommands() {
-        commands.reset();
-        dataRetainPool.clear();
-        bufferDataRetainPool.clear();
-        imageRetainPool.clear();
-    }
-    void resetState() {
-        recordingPass = NoPass;
-        currentTarget = nullptr;
-        resetCommands();
-        resetCachedState();
-    }
-    void resetCachedState() {
-        currentGraphicsPipeline = nullptr;
-        currentComputePipeline = nullptr;
-        currentPipelineGeneration = 0;
-        currentGraphicsSrb = nullptr;
-        currentComputeSrb = nullptr;
-        currentSrbGeneration = 0;
-        currentIndexBuffer = nullptr;
-        currentIndexOffset = 0;
-        currentIndexFormat = DXGI_FORMAT_R16_UINT;
-        memset(currentVertexBuffers, 0, sizeof(currentVertexBuffers));
-        memset(currentVertexOffsets, 0, sizeof(currentVertexOffsets));
-    }
-};
-
-struct QD3D11SwapChain : public QRhiSwapChain
-{
-    QD3D11SwapChain(QRhiImplementation *rhi);
-    ~QD3D11SwapChain();
-    void destroy() override;
-
-    QRhiCommandBuffer *currentFrameCommandBuffer() override;
-    QRhiRenderTarget *currentFrameRenderTarget() override;
-
-    QSize surfacePixelSize() override;
-    bool isFormatSupported(Format f) override;
-    QRhiSwapChainHdrInfo hdrInfo() override;
-
-    QRhiRenderPassDescriptor *newCompatibleRenderPassDescriptor() override;
-    bool createOrResize() override;
-
-    bool createOrResizeWin7();
-
-    void releaseBuffers();
-    bool newColorBuffer(const QSize &size, DXGI_FORMAT format, DXGI_SAMPLE_DESC sampleDesc,
-                        ID3D11Texture2D **tex, ID3D11RenderTargetView **rtv) const;
-
-    QWindow *window = nullptr;
-    QSize pixelSize;
-    QD3D11SwapChainRenderTarget rt;
-    QD3D11CommandBuffer cb;
-    DXGI_FORMAT colorFormat;
-    DXGI_FORMAT srgbAdjustedColorFormat;
-    IDXGISwapChain *swapChain = nullptr;
-    UINT swapChainFlags = 0;
-    static const int BUFFER_COUNT = 2;
-    ID3D11Texture2D *backBufferTex;
-    ID3D11RenderTargetView *backBufferRtv;
-    ID3D11Texture2D *msaaTex[BUFFER_COUNT];
-    ID3D11RenderTargetView *msaaRtv[BUFFER_COUNT];
-    DXGI_SAMPLE_DESC sampleDesc;
-    int currentFrameSlot = 0;
-    int frameCount = 0;
-    QD3D11RenderBuffer *ds = nullptr;
-    bool timestampActive[BUFFER_COUNT];
-    ID3D11Query *timestampDisjointQuery[BUFFER_COUNT];
-    ID3D11Query *timestampQuery[BUFFER_COUNT * 2];
-    UINT swapInterval = 1;
-    IDCompositionTarget *dcompTarget = nullptr;
-    IDCompositionVisual *dcompVisual = nullptr;
-};
-
-class QRhiD3D11 : public QRhiImplementation
-{
-public:
-    QRhiD3D11(QRhiD3D11InitParams *params, QRhiD3D11NativeHandles *importDevice = nullptr);
-
-    bool create(QRhi::Flags flags) override;
-    void destroy() override;
-
-    QRhiGraphicsPipeline *createGraphicsPipeline() override;
-    QRhiComputePipeline *createComputePipeline() override;
-    QRhiShaderResourceBindings *createShaderResourceBindings() override;
-    QRhiBuffer *createBuffer(QRhiBuffer::Type type,
-                             QRhiBuffer::UsageFlags usage,
-                             quint32 size) override;
-    QRhiRenderBuffer *createRenderBuffer(QRhiRenderBuffer::Type type,
-                                         const QSize &pixelSize,
-                                         int sampleCount,
-                                         QRhiRenderBuffer::Flags flags,
-                                         QRhiTexture::Format backingFormatHint) override;
-    QRhiTexture *createTexture(QRhiTexture::Format format,
-                               const QSize &pixelSize,
-                               int depth,
-                               int arraySize,
-                               int sampleCount,
-                               QRhiTexture::Flags flags) override;
-    QRhiSampler *createSampler(QRhiSampler::Filter magFilter,
-                               QRhiSampler::Filter minFilter,
-                               QRhiSampler::Filter mipmapMode,
-                               QRhiSampler:: AddressMode u,
-                               QRhiSampler::AddressMode v,
-                               QRhiSampler::AddressMode w) override;
-
-    QRhiTextureRenderTarget *createTextureRenderTarget(const QRhiTextureRenderTargetDescription &desc,
-                                                       QRhiTextureRenderTarget::Flags flags) override;
-
-    QRhiSwapChain *createSwapChain() override;
-    QRhi::FrameOpResult beginFrame(QRhiSwapChain *swapChain, QRhi::BeginFrameFlags flags) override;
-    QRhi::FrameOpResult endFrame(QRhiSwapChain *swapChain, QRhi::EndFrameFlags flags) override;
-    QRhi::FrameOpResult beginOffscreenFrame(QRhiCommandBuffer **cb, QRhi::BeginFrameFlags flags) override;
-    QRhi::FrameOpResult endOffscreenFrame(QRhi::EndFrameFlags flags) override;
-    QRhi::FrameOpResult finish() override;
-
-    void resourceUpdate(QRhiCommandBuffer *cb, QRhiResourceUpdateBatch *resourceUpdates) override;
-
-    void beginPass(QRhiCommandBuffer *cb,
-                   QRhiRenderTarget *rt,
-                   const QColor &colorClearValue,
-                   const QRhiDepthStencilClearValue &depthStencilClearValue,
-                   QRhiResourceUpdateBatch *resourceUpdates,
-                   QRhiCommandBuffer::BeginPassFlags flags) override;
-    void endPass(QRhiCommandBuffer *cb, QRhiResourceUpdateBatch *resourceUpdates) override;
-
-    void setGraphicsPipeline(QRhiCommandBuffer *cb,
-                             QRhiGraphicsPipeline *ps) override;
-
-    void setShaderResources(QRhiCommandBuffer *cb,
-                            QRhiShaderResourceBindings *srb,
-                            int dynamicOffsetCount,
-                            const QRhiCommandBuffer::DynamicOffset *dynamicOffsets) override;
-
-    void setVertexInput(QRhiCommandBuffer *cb,
-                        int startBinding, int bindingCount, const QRhiCommandBuffer::VertexInput *bindings,
-                        QRhiBuffer *indexBuf, quint32 indexOffset,
-                        QRhiCommandBuffer::IndexFormat indexFormat) override;
-
-    void setViewport(QRhiCommandBuffer *cb, const QRhiViewport &viewport) override;
-    void setScissor(QRhiCommandBuffer *cb, const QRhiScissor &scissor) override;
-    void setBlendConstants(QRhiCommandBuffer *cb, const QColor &c) override;
-    void setStencilRef(QRhiCommandBuffer *cb, quint32 refValue) override;
-
-    void draw(QRhiCommandBuffer *cb, quint32 vertexCount,
-              quint32 instanceCount, quint32 firstVertex, quint32 firstInstance) override;
-
-    void drawIndexed(QRhiCommandBuffer *cb, quint32 indexCount,
-                     quint32 instanceCount, quint32 firstIndex,
-                     qint32 vertexOffset, quint32 firstInstance) override;
-
-    void debugMarkBegin(QRhiCommandBuffer *cb, const QByteArray &name) override;
-    void debugMarkEnd(QRhiCommandBuffer *cb) override;
-    void debugMarkMsg(QRhiCommandBuffer *cb, const QByteArray &msg) override;
-
-    void beginComputePass(QRhiCommandBuffer *cb,
-                          QRhiResourceUpdateBatch *resourceUpdates,
-                          QRhiCommandBuffer::BeginPassFlags flags) override;
-    void endComputePass(QRhiCommandBuffer *cb, QRhiResourceUpdateBatch *resourceUpdates) override;
-    void setComputePipeline(QRhiCommandBuffer *cb, QRhiComputePipeline *ps) override;
-    void dispatch(QRhiCommandBuffer *cb, int x, int y, int z) override;
-
-    const QRhiNativeHandles *nativeHandles(QRhiCommandBuffer *cb) override;
-    void beginExternal(QRhiCommandBuffer *cb) override;
-    void endExternal(QRhiCommandBuffer *cb) override;
-
-    QList<int> supportedSampleCounts() const override;
-    int ubufAlignment() const override;
-    bool isYUpInFramebuffer() const override;
-    bool isYUpInNDC() const override;
-    bool isClipDepthZeroToOne() const override;
-    QMatrix4x4 clipSpaceCorrMatrix() const override;
-    bool isTextureFormatSupported(QRhiTexture::Format format, QRhiTexture::Flags flags) const override;
-    bool isFeatureSupported(QRhi::Feature feature) const override;
-    int resourceLimit(QRhi::ResourceLimit limit) const override;
-    const QRhiNativeHandles *nativeHandles() override;
-    QRhiDriverInfo driverInfo() const override;
-    QRhiStats statistics() override;
-    bool makeThreadLocalNativeContextCurrent() override;
-    void releaseCachedResources() override;
-    bool isDeviceLost() const override;
-
-    QByteArray pipelineCacheData() override;
-    void setPipelineCacheData(const QByteArray &data) override;
-
-    void enqueueSubresUpload(QD3D11Texture *texD, QD3D11CommandBuffer *cbD,
-                             int layer, int level, const QRhiTextureSubresourceUploadDescription &subresDesc);
-    void enqueueResourceUpdates(QRhiCommandBuffer *cb, QRhiResourceUpdateBatch *resourceUpdates);
-    void updateShaderResourceBindings(QD3D11ShaderResourceBindings *srbD,
-                                      const QShader::NativeResourceBindingMap *nativeResourceBindingMaps[]);
-    void executeBufferHostWrites(QD3D11Buffer *bufD);
-    void bindShaderResources(QD3D11ShaderResourceBindings *srbD,
-                             const uint *dynOfsPairs, int dynOfsPairCount,
-                             bool offsetOnlyChange);
-    void resetShaderResources();
-    void executeCommandBuffer(QD3D11CommandBuffer *cbD, QD3D11SwapChain *timestampSwapChain = nullptr);
-    DXGI_SAMPLE_DESC effectiveSampleCount(int sampleCount) const;
-    void finishActiveReadbacks();
-    void reportLiveObjects(ID3D11Device *device);
-    void clearShaderCache();
-    QByteArray compileHlslShaderSource(const QShader &shader, QShader::Variant shaderVariant, uint flags,
-                                       QString *error, QShaderKey *usedShaderKey);
-    bool ensureDirectCompositionDevice();
-
-    QRhi::Flags rhiFlags;
-    bool debugLayer = false;
-    bool importedDeviceAndContext = false;
-    ID3D11Device *dev = nullptr;
-    ID3D11DeviceContext1 *context = nullptr;
-    D3D_FEATURE_LEVEL featureLevel = D3D_FEATURE_LEVEL(0);
-    LUID adapterLuid = {};
-    ID3DUserDefinedAnnotation *annotations = nullptr;
-    IDXGIAdapter1 *activeAdapter = nullptr;
-    IDXGIFactory1 *dxgiFactory = nullptr;
-    IDCompositionDevice *dcompDevice = nullptr;
-    bool supportsAllowTearing = false;
-    bool supportsFlipSwapchain = false; // win7
-    bool forceFlipDiscard = false; // win7
-    bool deviceLost = false;
-    QRhiD3D11NativeHandles nativeHandlesStruct;
-    QRhiDriverInfo driverInfoStruct;
-
-    struct {
-        int vsHighestActiveVertexBufferBinding = -1;
-        bool vsHasIndexBufferBound = false;
-        int vsHighestActiveSrvBinding = -1;
-        int hsHighestActiveSrvBinding = -1;
-        int dsHighestActiveSrvBinding = -1;
-        int gsHighestActiveSrvBinding = -1;
-        int fsHighestActiveSrvBinding = -1;
-        int csHighestActiveSrvBinding = -1;
-        int csHighestActiveUavBinding = -1;
-        QD3D11SwapChain *currentSwapChain = nullptr;
-    } contextState;
-
-    struct OffscreenFrame {
-        OffscreenFrame(QRhiImplementation *rhi) : cbWrapper(rhi) { }
-        bool active = false;
-        QD3D11CommandBuffer cbWrapper;
-    } ofr;
-
-    struct TextureReadback {
-        QRhiReadbackDescription desc;
-        QRhiReadbackResult *result;
-        ID3D11Texture2D *stagingTex;
-        quint32 byteSize;
-        quint32 bpl;
-        QSize pixelSize;
-        QRhiTexture::Format format;
-    };
-    QVarLengthArray<TextureReadback, 2> activeTextureReadbacks;
-    struct BufferReadback {
-        QRhiBufferReadbackResult *result;
-        quint32 byteSize;
-        ID3D11Buffer *stagingBuf;
-    };
-    QVarLengthArray<BufferReadback, 2> activeBufferReadbacks;
-
-    struct Shader {
-        Shader() = default;
-        Shader(IUnknown *s, const QByteArray &bytecode, const QShader::NativeResourceBindingMap &rbm)
-            : s(s), bytecode(bytecode), nativeResourceBindingMap(rbm) { }
-        IUnknown *s;
-        QByteArray bytecode;
-        QShader::NativeResourceBindingMap nativeResourceBindingMap;
-    };
-    QHash<QRhiShaderStage, Shader> m_shaderCache;
-
-    struct DeviceCurse {
-        DeviceCurse(QRhiD3D11 *impl) : q(impl) { }
-        QRhiD3D11 *q;
-        int framesToActivate = -1;
-        bool permanent = false;
-        int framesLeft = 0;
-        ID3D11ComputeShader *cs = nullptr;
-
-        void initResources();
-        void releaseResources();
-        void activate();
-    } deviceCurse;
-
-    // This is what gets exposed as the "pipeline cache", not that that concept
-    // applies anyway. Here we are just storing the DX bytecode for a shader so
-    // we can skip the HLSL->DXBC compilation when the QShader has HLSL source
-    // code and the same shader source has already been compiled before.
-    // m_shaderCache seemingly does the same, but this here does not care about
-    // the ID3D11*Shader, this is just about the bytecode and about allowing
-    // the data to be serialized to persistent storage and then reloaded in
-    // future runs of the app, or when creating another QRhi, etc.
-    struct BytecodeCacheKey {
-        QByteArray sourceHash;
-        QByteArray target;
-        QByteArray entryPoint;
-        uint compileFlags;
-    };
-    QHash<BytecodeCacheKey, QByteArray> m_bytecodeCache;
-};
-
-Q_DECLARE_TYPEINFO(QRhiD3D11::TextureReadback, Q_RELOCATABLE_TYPE);
-Q_DECLARE_TYPEINFO(QRhiD3D11::BufferReadback, Q_RELOCATABLE_TYPE);
-
-inline bool operator==(const QRhiD3D11::BytecodeCacheKey &a, const QRhiD3D11::BytecodeCacheKey &b) noexcept
-{
-    return a.sourceHash == b.sourceHash
-            && a.target == b.target
-            && a.entryPoint == b.entryPoint
-            && a.compileFlags == b.compileFlags;
-}
-
-inline bool operator!=(const QRhiD3D11::BytecodeCacheKey &a, const QRhiD3D11::BytecodeCacheKey &b) noexcept
-{
-    return !(a == b);
-}
-
-inline size_t qHash(const QRhiD3D11::BytecodeCacheKey &k, size_t seed = 0) noexcept
-{
-    return qHash(k.sourceHash, seed) ^ qHash(k.target) ^ qHash(k.entryPoint) ^ k.compileFlags;
-}
-
-QT_END_NAMESPACE
-
-#endif
diff --git a/src/gui/rhi/qrhid3d12.cpp b/src/gui/rhi/qrhid3d12.cpp
new file mode 100644
index 00000000..561e6db4
--- /dev/null
+++ b/src/gui/rhi/qrhid3d12.cpp
@@ -0,0 +1,6199 @@
+// Copyright (C) 2023 The Qt Company Ltd.
+// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
+
+#include "qrhid3d12_p.h"
+#include "qshader.h"
+#include <QWindow>
+#include <qmath.h>
+#include <QtCore/qcryptographichash.h>
+#include <QtCore/private/qsystemerror_p.h>
+#include <comdef.h>
+#include "qrhid3dhelpers_p.h"
+#include "cs_mipmap_p.h"
+
+#if __has_include(<pix.h>)
+#include <pix.h>
+#define QRHI_D3D12_HAS_OLD_PIX
+#endif
+
+QT_BEGIN_NAMESPACE
+
+/*
+  Direct 3D 12 backend.
+*/
+
+/*!
+    \class QRhiD3D12InitParams
+    \inmodule QtGui
+    \brief Direct3D 12 specific initialization parameters.
+
+    \note This is a RHI API with limited compatibility guarantees, see \l QRhi
+    for details.
+
+    A D3D12-based QRhi needs no special parameters for initialization. If
+    desired, enableDebugLayer can be set to \c true to enable the Direct3D
+    debug layer. This can be useful during development, but should be avoided
+    in production builds.
+
+    \badcode
+        QRhiD3D12InitParams params;
+        params.enableDebugLayer = true;
+        rhi = QRhi::create(QRhi::D3D12, &params);
+    \endcode
+
+    \note QRhiSwapChain should only be used in combination with QWindow
+    instances that have their surface type set to QSurface::Direct3DSurface.
+
+    \section2 Working with existing Direct3D 12 devices
+
+    When interoperating with another graphics engine, it may be necessary to
+    get a QRhi instance that uses the same Direct3D device. This can be
+    achieved by passing a pointer to a QRhiD3D12NativeHandles to
+    QRhi::create(). QRhi does not take ownership of any of the external
+    objects.
+
+    Sometimes, for example when using QRhi in combination with OpenXR, one will
+    want to specify which adapter to use, and optionally, which feature level
+    to request on the device, while leaving the device creation to QRhi. This
+    is achieved by leaving the device pointer set to null, while specifying the
+    adapter LUID and feature level.
+
+    Optionally the ID3D12CommandQueue can be specified as well, by setting \c
+    commandQueue to a non-null value.
+ */
+
+/*!
+    \variable QRhiD3D12InitParams::enableDebugLayer
+
+    When set to true, the debug layer is enabled, if installed and available.
+    The default value is false.
+*/
+
+/*!
+    \class QRhiD3D12NativeHandles
+    \inmodule QtGui
+    \brief Holds the D3D12 device used by the QRhi.
+
+    \note The class uses \c{void *} as the type since including the COM-based
+    \c{d3d12.h} headers is not acceptable here. The actual types are
+    \c{ID3D12Device *} and \c{ID3D12CommandQueue *}.
+
+    \note This is a RHI API with limited compatibility guarantees, see \l QRhi
+    for details.
+ */
+
+/*!
+    \variable QRhiD3D12NativeHandles::dev
+*/
+
+/*!
+    \variable QRhiD3D12NativeHandles::minimumFeatureLevel
+*/
+
+/*!
+    \variable QRhiD3D12NativeHandles::adapterLuidLow
+*/
+
+/*!
+    \variable QRhiD3D12NativeHandles::adapterLuidHigh
+*/
+
+/*!
+    \variable QRhiD3D12NativeHandles::commandQueue
+*/
+
+/*!
+    \class QRhiD3D12CommandBufferNativeHandles
+    \inmodule QtGui
+    \brief Holds the ID3D12GraphicsCommandList object that is backing a QRhiCommandBuffer.
+
+    \note The command list object is only guaranteed to be valid, and
+    in recording state, while recording a frame. That is, between a
+    \l{QRhi::beginFrame()}{beginFrame()} - \l{QRhi::endFrame()}{endFrame()} or
+    \l{QRhi::beginOffscreenFrame()}{beginOffscreenFrame()} -
+    \l{QRhi::endOffscreenFrame()}{endOffscreenFrame()} pair.
+
+    \note This is a RHI API with limited compatibility guarantees, see \l QRhi
+    for details.
+ */
+
+/*!
+    \variable QRhiD3D12CommandBufferNativeHandles::commandList
+*/
+
+// https://learn.microsoft.com/en-us/windows/win32/direct3d12/hardware-feature-levels
+static const D3D_FEATURE_LEVEL MIN_FEATURE_LEVEL = D3D_FEATURE_LEVEL_11_0;
+
+QRhiD3D12::QRhiD3D12(QRhiD3D12InitParams *params, QRhiD3D12NativeHandles *importParams)
+{
+    debugLayer = params->enableDebugLayer;
+    if (importParams) {
+        if (importParams->dev) {
+            dev = reinterpret_cast<ID3D12Device *>(importParams->dev);
+            importedDevice = true;
+        }
+        if (importParams->commandQueue) {
+            cmdQueue = reinterpret_cast<ID3D12CommandQueue *>(importParams->commandQueue);
+            importedCommandQueue = true;
+        }
+        minimumFeatureLevel = D3D_FEATURE_LEVEL(importParams->minimumFeatureLevel);
+        adapterLuid.LowPart = importParams->adapterLuidLow;
+        adapterLuid.HighPart = importParams->adapterLuidHigh;
+    }
+}
+
+template <class Int>
+inline Int aligned(Int v, Int byteAlign)
+{
+    return (v + byteAlign - 1) & ~(byteAlign - 1);
+}
+
+static inline UINT calcSubresource(UINT mipSlice, UINT arraySlice, UINT mipLevels)
+{
+    return mipSlice + arraySlice * mipLevels;
+}
+
+static inline QD3D12RenderTargetData *rtData(QRhiRenderTarget *rt)
+{
+    switch (rt->resourceType()) {
+    case QRhiResource::SwapChainRenderTarget:
+        return &QRHI_RES(QD3D12SwapChainRenderTarget, rt)->d;
+    case QRhiResource::TextureRenderTarget:
+        return &QRHI_RES(QD3D12TextureRenderTarget, rt)->d;
+        break;
+    default:
+        break;
+    }
+    Q_UNREACHABLE_RETURN(nullptr);
+}
+
+bool QRhiD3D12::create(QRhi::Flags flags)
+{
+    typedef HRESULT(WINAPI* CreateDXGIFactory2Func) (UINT flags, REFIID riid, void** factory);
+    typedef HRESULT(WINAPI* D3D12CreateDeviceFunc) (IUnknown *, D3D_FEATURE_LEVEL, REFIID, void **);
+    typedef HRESULT(WINAPI* D3D12GetDebugInterfaceFunc) (REFIID, void **);
+
+    static CreateDXGIFactory2Func myCreateDXGIFactory2 =
+        (CreateDXGIFactory2Func)::GetProcAddress(::GetModuleHandle(L"dxgi"), "CreateDXGIFactory2");
+
+    static D3D12CreateDeviceFunc myD3D12CreateDevice =
+        (D3D12CreateDeviceFunc)::GetProcAddress(::GetModuleHandle(L"D3d12"), "D3D12CreateDevice");
+
+    static D3D12GetDebugInterfaceFunc myD3D12GetDebugInterface =
+        (D3D12GetDebugInterfaceFunc)::GetProcAddress(::GetModuleHandle(L"D3d12"), "D3D12GetDebugInterface");
+
+    if (!myCreateDXGIFactory2 || !myD3D12CreateDevice || !myD3D12GetDebugInterface)
+        return false;
+
+    rhiFlags = flags;
+
+    UINT factoryFlags = 0;
+    if (debugLayer)
+        factoryFlags |= DXGI_CREATE_FACTORY_DEBUG;
+    HRESULT hr = myCreateDXGIFactory2(factoryFlags, __uuidof(IDXGIFactory2), reinterpret_cast<void **>(&dxgiFactory));
+    if (FAILED(hr)) {
+        qWarning("CreateDXGIFactory2() failed to create DXGI factory: %s",
+                 qPrintable(QSystemError::windowsComString(hr)));
+        return false;
+    }
+
+    supportsAllowTearing = false;
+    IDXGIFactory5 *factory5 = nullptr;
+    if (SUCCEEDED(dxgiFactory->QueryInterface(__uuidof(IDXGIFactory5), reinterpret_cast<void **>(&factory5)))) {
+        BOOL allowTearing = false;
+        if (SUCCEEDED(factory5->CheckFeatureSupport(DXGI_FEATURE_PRESENT_ALLOW_TEARING, &allowTearing, sizeof(allowTearing))))
+            supportsAllowTearing = allowTearing;
+        factory5->Release();
+    }
+
+    if (debugLayer) {
+        ID3D12Debug1 *debug = nullptr;
+        if (SUCCEEDED(myD3D12GetDebugInterface(__uuidof(ID3D12Debug1), reinterpret_cast<void **>(&debug)))) {
+            qCDebug(QRHI_LOG_INFO, "Enabling D3D12 debug layer");
+            debug->EnableDebugLayer();
+            debug->Release();
+        }
+    }
+
+    if (!importedDevice) {
+        IDXGIAdapter1 *adapter;
+        int requestedAdapterIndex = -1;
+        if (qEnvironmentVariableIsSet("QT_D3D_ADAPTER_INDEX"))
+            requestedAdapterIndex = qEnvironmentVariableIntValue("QT_D3D_ADAPTER_INDEX");
+
+        // The importParams may specify an adapter by the luid, take that into account.
+        if (requestedAdapterIndex < 0 && (adapterLuid.LowPart || adapterLuid.HighPart)) {
+            for (int adapterIndex = 0; dxgiFactory->EnumAdapters1(UINT(adapterIndex), &adapter) != DXGI_ERROR_NOT_FOUND; ++adapterIndex) {
+                DXGI_ADAPTER_DESC1 desc;
+                adapter->GetDesc1(&desc);
+                adapter->Release();
+                if (desc.AdapterLuid.LowPart == adapterLuid.LowPart
+                        && desc.AdapterLuid.HighPart == adapterLuid.HighPart)
+                {
+                    requestedAdapterIndex = adapterIndex;
+                    break;
+                }
+            }
+        }
+
+        if (requestedAdapterIndex < 0 && flags.testFlag(QRhi::PreferSoftwareRenderer)) {
+            for (int adapterIndex = 0; dxgiFactory->EnumAdapters1(UINT(adapterIndex), &adapter) != DXGI_ERROR_NOT_FOUND; ++adapterIndex) {
+                DXGI_ADAPTER_DESC1 desc;
+                adapter->GetDesc1(&desc);
+                adapter->Release();
+                if (desc.Flags & DXGI_ADAPTER_FLAG_SOFTWARE) {
+                    requestedAdapterIndex = adapterIndex;
+                    break;
+                }
+            }
+        }
+
+        activeAdapter = nullptr;
+        for (int adapterIndex = 0; dxgiFactory->EnumAdapters1(UINT(adapterIndex), &adapter) != DXGI_ERROR_NOT_FOUND; ++adapterIndex) {
+            DXGI_ADAPTER_DESC1 desc;
+            adapter->GetDesc1(&desc);
+            const QString name = QString::fromUtf16(reinterpret_cast<char16_t *>(desc.Description));
+            qCDebug(QRHI_LOG_INFO, "Adapter %d: '%s' (vendor 0x%X device 0x%X flags 0x%X)",
+                    adapterIndex,
+                    qPrintable(name),
+                    desc.VendorId,
+                    desc.DeviceId,
+                    desc.Flags);
+            if (!activeAdapter && (requestedAdapterIndex < 0 || requestedAdapterIndex == adapterIndex)) {
+                activeAdapter = adapter;
+                adapterLuid = desc.AdapterLuid;
+                driverInfoStruct.deviceName = name.toUtf8();
+                driverInfoStruct.deviceId = desc.DeviceId;
+                driverInfoStruct.vendorId = desc.VendorId;
+                qCDebug(QRHI_LOG_INFO, "  using this adapter");
+            } else {
+                adapter->Release();
+            }
+        }
+        if (!activeAdapter) {
+            qWarning("No adapter");
+            return false;
+        }
+
+        if (minimumFeatureLevel == 0)
+            minimumFeatureLevel = MIN_FEATURE_LEVEL;
+
+        hr = myD3D12CreateDevice(activeAdapter,
+                               minimumFeatureLevel,
+                               __uuidof(ID3D12Device),
+                               reinterpret_cast<void **>(&dev));
+        if (FAILED(hr)) {
+            qWarning("Failed to create D3D12 device: %s", qPrintable(QSystemError::windowsComString(hr)));
+            return false;
+        }
+    } else {
+        Q_ASSERT(dev);
+        // cannot just get a IDXGIDevice from the ID3D12Device anymore, look up the adapter instead
+        adapterLuid = dev->GetAdapterLuid();
+        IDXGIAdapter1 *adapter;
+        for (int adapterIndex = 0; dxgiFactory->EnumAdapters1(UINT(adapterIndex), &adapter) != DXGI_ERROR_NOT_FOUND; ++adapterIndex) {
+            DXGI_ADAPTER_DESC1 desc;
+            adapter->GetDesc1(&desc);
+            adapter->Release();
+            if (desc.AdapterLuid.LowPart == adapterLuid.LowPart
+                    && desc.AdapterLuid.HighPart == adapterLuid.HighPart)
+            {
+                driverInfoStruct.deviceName = QString::fromUtf16(reinterpret_cast<char16_t *>(desc.Description)).toUtf8();
+                driverInfoStruct.deviceId = desc.DeviceId;
+                driverInfoStruct.vendorId = desc.VendorId;
+                break;
+            }
+        }
+        qCDebug(QRHI_LOG_INFO, "Using imported device %p", dev);
+    }
+
+    if (debugLayer) {
+        ID3D12InfoQueue *infoQueue;
+        if (SUCCEEDED(dev->QueryInterface(__uuidof(ID3D12InfoQueue), reinterpret_cast<void **>(&infoQueue)))) {
+            if (qEnvironmentVariableIntValue("QT_D3D_DEBUG_BREAK")) {
+                infoQueue->SetBreakOnSeverity(D3D12_MESSAGE_SEVERITY_CORRUPTION, true);
+                infoQueue->SetBreakOnSeverity(D3D12_MESSAGE_SEVERITY_ERROR, true);
+                infoQueue->SetBreakOnSeverity(D3D12_MESSAGE_SEVERITY_WARNING, true);
+            }
+            D3D12_INFO_QUEUE_FILTER filter = {};
+            D3D12_MESSAGE_ID suppressedMessages[2] = {
+                // there is no way of knowing the clear color upfront
+                D3D12_MESSAGE_ID_CLEARRENDERTARGETVIEW_MISMATCHINGCLEARVALUE,
+                // we have no control over viewport and scissor rects
+                D3D12_MESSAGE_ID_DRAW_EMPTY_SCISSOR_RECTANGLE
+            };
+            filter.DenyList.NumIDs = 2;
+            filter.DenyList.pIDList = suppressedMessages;
+            // Setting the filter would enable Info messages (e.g. about
+            // resource creation) which we don't need.
+            D3D12_MESSAGE_SEVERITY infoSev = D3D12_MESSAGE_SEVERITY_INFO;
+            filter.DenyList.NumSeverities = 1;
+            filter.DenyList.pSeverityList = &infoSev;
+            infoQueue->PushStorageFilter(&filter);
+            infoQueue->Release();
+        }
+    }
+
+    if (!importedCommandQueue) {
+        D3D12_COMMAND_QUEUE_DESC queueDesc = {};
+        queueDesc.Type = D3D12_COMMAND_LIST_TYPE_DIRECT;
+        queueDesc.Priority = D3D12_COMMAND_QUEUE_PRIORITY_NORMAL;
+        hr = dev->CreateCommandQueue(&queueDesc, __uuidof(ID3D12CommandQueue), reinterpret_cast<void **>(&cmdQueue));
+        if (FAILED(hr)) {
+            qWarning("Failed to create command queue: %s", qPrintable(QSystemError::windowsComString(hr)));
+            return false;
+        }
+    }
+
+    hr = dev->CreateFence(0, D3D12_FENCE_FLAG_NONE, __uuidof(ID3D12Fence), reinterpret_cast<void **>(&fullFence));
+    if (FAILED(hr)) {
+        qWarning("Failed to create fence: %s", qPrintable(QSystemError::windowsComString(hr)));
+        return false;
+    }
+    fullFenceEvent = CreateEvent(nullptr, FALSE, FALSE, nullptr);
+    fullFenceCounter = 0;
+
+    for (int i = 0; i < QD3D12_FRAMES_IN_FLIGHT; ++i) {
+        hr = dev->CreateCommandAllocator(D3D12_COMMAND_LIST_TYPE_DIRECT,
+                                         __uuidof(ID3D12CommandAllocator),
+                                         reinterpret_cast<void **>(&cmdAllocators[i]));
+        if (FAILED(hr)) {
+            qWarning("Failed to create command allocator: %s", qPrintable(QSystemError::windowsComString(hr)));
+            return false;
+        }
+    }
+
+    if (!vma.create(dev, activeAdapter)) {
+        qWarning("Failed to initialize graphics memory suballocator");
+        return false;
+    }
+
+    if (!rtvPool.create(dev, D3D12_DESCRIPTOR_HEAP_TYPE_RTV, "main RTV pool")) {
+        qWarning("Could not create RTV pool");
+        return false;
+    }
+
+    if (!dsvPool.create(dev, D3D12_DESCRIPTOR_HEAP_TYPE_DSV, "main DSV pool")) {
+        qWarning("Could not create DSV pool");
+        return false;
+    }
+
+    if (!cbvSrvUavPool.create(dev, D3D12_DESCRIPTOR_HEAP_TYPE_CBV_SRV_UAV, "main CBV-SRV-UAV pool")) {
+        qWarning("Could not create CBV-SRV-UAV pool");
+        return false;
+    }
+
+    resourcePool.create("main resource pool");
+    pipelinePool.create("main pipeline pool");
+    rootSignaturePool.create("main root signature pool");
+    releaseQueue.create(&resourcePool, &pipelinePool, &rootSignaturePool);
+    barrierGen.create(&resourcePool);
+
+    if (!samplerMgr.create(dev)) {
+        qWarning("Could not create sampler pool and shader-visible sampler heap");
+        return false;
+    }
+
+    if (!mipmapGen.create(this)) {
+        qWarning("Could not initialize mipmap generator");
+        return false;
+    }
+
+    const qint32 smallStagingSize = aligned(SMALL_STAGING_AREA_BYTES_PER_FRAME, QD3D12StagingArea::ALIGNMENT);
+    for (int i = 0; i < QD3D12_FRAMES_IN_FLIGHT; ++i) {
+        if (!smallStagingAreas[i].create(this, smallStagingSize, D3D12_HEAP_TYPE_UPLOAD)) {
+            qWarning("Could not create host-visible staging area");
+            return false;
+        }
+    }
+
+    if (!shaderVisibleCbvSrvUavHeap.create(dev,
+                                           D3D12_DESCRIPTOR_HEAP_TYPE_CBV_SRV_UAV,
+                                           SHADER_VISIBLE_CBV_SRV_UAV_HEAP_PER_FRAME_START_SIZE))
+    {
+        qWarning("Could not create first shader-visible CBV/SRV/UAV heap");
+        return false;
+    }
+
+    deviceLost = false;
+    offscreenActive = false;
+
+    nativeHandlesStruct.dev = dev;
+    nativeHandlesStruct.minimumFeatureLevel = minimumFeatureLevel;
+    nativeHandlesStruct.adapterLuidLow = adapterLuid.LowPart;
+    nativeHandlesStruct.adapterLuidHigh = adapterLuid.HighPart;
+    nativeHandlesStruct.commandQueue = cmdQueue;
+
+    return true;
+}
+
+void QRhiD3D12::destroy()
+{
+    if (!deviceLost && fullFence && fullFenceEvent)
+        waitGpu();
+
+    releaseQueue.releaseAll();
+
+    for (int i = 0; i < QD3D12_FRAMES_IN_FLIGHT; ++i) {
+        if (offscreenCb[i]) {
+            if (offscreenCb[i]->cmdList)
+                offscreenCb[i]->cmdList->Release();
+            delete offscreenCb[i];
+            offscreenCb[i] = nullptr;
+        }
+    }
+
+    shaderVisibleCbvSrvUavHeap.destroy();
+
+    for (int i = 0; i < QD3D12_FRAMES_IN_FLIGHT; ++i)
+        smallStagingAreas[i].destroy();
+
+    mipmapGen.destroy();
+    samplerMgr.destroy();
+    resourcePool.destroy();
+    pipelinePool.destroy();
+    rootSignaturePool.destroy();
+    rtvPool.destroy();
+    dsvPool.destroy();
+    cbvSrvUavPool.destroy();
+
+    for (int i = 0; i < QD3D12_FRAMES_IN_FLIGHT; ++i) {
+        cmdAllocators[i]->Release();
+        cmdAllocators[i] = nullptr;
+    }
+
+    if (fullFenceEvent) {
+        CloseHandle(fullFenceEvent);
+        fullFenceEvent = nullptr;
+    }
+
+    if (fullFence) {
+        fullFence->Release();
+        fullFence = nullptr;
+    }
+
+    if (!importedCommandQueue) {
+        if (cmdQueue) {
+            cmdQueue->Release();
+            cmdQueue = nullptr;
+        }
+    }
+
+    vma.destroy();
+
+    if (!importedDevice) {
+        if (dev) {
+            dev->Release();
+            dev = nullptr;
+        }
+    }
+
+    if (dcompDevice) {
+        dcompDevice->Release();
+        dcompDevice = nullptr;
+    }
+
+    if (activeAdapter) {
+        activeAdapter->Release();
+        activeAdapter = nullptr;
+    }
+
+    if (dxgiFactory) {
+        dxgiFactory->Release();
+        dxgiFactory = nullptr;
+    }
+}
+
+QList<int> QRhiD3D12::supportedSampleCounts() const
+{
+    return { 1, 2, 4, 8 };
+}
+
+QRhiSwapChain *QRhiD3D12::createSwapChain()
+{
+    return new QD3D12SwapChain(this);
+}
+
+QRhiBuffer *QRhiD3D12::createBuffer(QRhiBuffer::Type type, QRhiBuffer::UsageFlags usage, quint32 size)
+{
+    return new QD3D12Buffer(this, type, usage, size);
+}
+
+int QRhiD3D12::ubufAlignment() const
+{
+    return D3D12_CONSTANT_BUFFER_DATA_PLACEMENT_ALIGNMENT; // 256
+}
+
+bool QRhiD3D12::isYUpInFramebuffer() const
+{
+    return false;
+}
+
+bool QRhiD3D12::isYUpInNDC() const
+{
+    return true;
+}
+
+bool QRhiD3D12::isClipDepthZeroToOne() const
+{
+    return true;
+}
+
+QMatrix4x4 QRhiD3D12::clipSpaceCorrMatrix() const
+{
+    // Like with Vulkan, but Y is already good.
+
+    static QMatrix4x4 m;
+    if (m.isIdentity()) {
+        // NB the ctor takes row-major
+        m = QMatrix4x4(1.0f, 0.0f, 0.0f, 0.0f,
+                       0.0f, 1.0f, 0.0f, 0.0f,
+                       0.0f, 0.0f, 0.5f, 0.5f,
+                       0.0f, 0.0f, 0.0f, 1.0f);
+    }
+    return m;
+}
+
+bool QRhiD3D12::isTextureFormatSupported(QRhiTexture::Format format, QRhiTexture::Flags flags) const
+{
+    Q_UNUSED(flags);
+
+    if (format >= QRhiTexture::ETC2_RGB8 && format <= QRhiTexture::ASTC_12x12)
+        return false;
+
+    return true;
+}
+
+bool QRhiD3D12::isFeatureSupported(QRhi::Feature feature) const
+{
+    switch (feature) {
+    case QRhi::MultisampleTexture:
+        return true;
+    case QRhi::MultisampleRenderBuffer:
+        return true;
+    case QRhi::DebugMarkers:
+#ifdef QRHI_D3D12_HAS_OLD_PIX
+        return true;
+#else
+        return false;
+#endif
+    case QRhi::Timestamps:
+        return false; // ###
+    case QRhi::Instancing:
+        return true;
+    case QRhi::CustomInstanceStepRate:
+        return true;
+    case QRhi::PrimitiveRestart:
+        return true;
+    case QRhi::NonDynamicUniformBuffers:
+        return false;
+    case QRhi::NonFourAlignedEffectiveIndexBufferOffset:
+        return true;
+    case QRhi::NPOTTextureRepeat:
+        return true;
+    case QRhi::RedOrAlpha8IsRed:
+        return true;
+    case QRhi::ElementIndexUint:
+        return true;
+    case QRhi::Compute:
+        return true;
+    case QRhi::WideLines:
+        return false;
+    case QRhi::VertexShaderPointSize:
+        return false;
+    case QRhi::BaseVertex:
+        return true;
+    case QRhi::BaseInstance:
+        return true;
+    case QRhi::TriangleFanTopology:
+        return false;
+    case QRhi::ReadBackNonUniformBuffer:
+        return true;
+    case QRhi::ReadBackNonBaseMipLevel:
+        return true;
+    case QRhi::TexelFetch:
+        return true;
+    case QRhi::RenderToNonBaseMipLevel:
+        return true;
+    case QRhi::IntAttributes:
+        return true;
+    case QRhi::ScreenSpaceDerivatives:
+        return true;
+    case QRhi::ReadBackAnyTextureFormat:
+        return true;
+    case QRhi::PipelineCacheDataLoadSave:
+        return false; // ###
+    case QRhi::ImageDataStride:
+        return true;
+    case QRhi::RenderBufferImport:
+        return false;
+    case QRhi::ThreeDimensionalTextures:
+        return true;
+    case QRhi::RenderTo3DTextureSlice:
+        return true;
+    case QRhi::TextureArrays:
+        return true;
+    case QRhi::Tessellation:
+        return true;
+    case QRhi::GeometryShader:
+        return true;
+    case QRhi::TextureArrayRange:
+        return true;
+    case QRhi::NonFillPolygonMode:
+        return true;
+    case QRhi::OneDimensionalTextures:
+        return true;
+    case QRhi::OneDimensionalTextureMipmaps:
+        return false; // we generate mipmaps ourselves with compute and this is not implemented
+    case QRhi::HalfAttributes:
+        return true;
+    case QRhi::RenderToOneDimensionalTexture:
+        return true;
+    case QRhi::ThreeDimensionalTextureMipmaps:
+        return false; // we generate mipmaps ourselves with compute and this is not implemented
+    }
+    return false;
+}
+
+int QRhiD3D12::resourceLimit(QRhi::ResourceLimit limit) const
+{
+    switch (limit) {
+    case QRhi::TextureSizeMin:
+        return 1;
+    case QRhi::TextureSizeMax:
+        return 16384;
+    case QRhi::MaxColorAttachments:
+        return 8;
+    case QRhi::FramesInFlight:
+        return QD3D12_FRAMES_IN_FLIGHT;
+    case QRhi::MaxAsyncReadbackFrames:
+        return QD3D12_FRAMES_IN_FLIGHT;
+    case QRhi::MaxThreadGroupsPerDimension:
+        return 65535;
+    case QRhi::MaxThreadsPerThreadGroup:
+        return 1024;
+    case QRhi::MaxThreadGroupX:
+        return 1024;
+    case QRhi::MaxThreadGroupY:
+        return 1024;
+    case QRhi::MaxThreadGroupZ:
+        return 1024;
+    case QRhi::TextureArraySizeMax:
+        return 2048;
+    case QRhi::MaxUniformBufferRange:
+        return 65536;
+    case QRhi::MaxVertexInputs:
+        return 32;
+    case QRhi::MaxVertexOutputs:
+        return 32;
+    }
+    return 0;
+}
+
+const QRhiNativeHandles *QRhiD3D12::nativeHandles()
+{
+    return &nativeHandlesStruct;
+}
+
+QRhiDriverInfo QRhiD3D12::driverInfo() const
+{
+    return driverInfoStruct;
+}
+
+QRhiStats QRhiD3D12::statistics()
+{
+    QRhiStats result;
+    result.totalPipelineCreationTime = totalPipelineCreationTime();
+
+    D3D12MA::Budget budgets[2]; // [gpu, system] with discreet GPU or [shared, nothing] with UMA
+    vma.getBudget(&budgets[0], &budgets[1]);
+    for (int i = 0; i < 2; ++i) {
+        const D3D12MA::Statistics &stats(budgets[i].Stats);
+        result.blockCount += stats.BlockCount;
+        result.allocCount += stats.AllocationCount;
+        result.usedBytes += stats.AllocationBytes;
+        result.unusedBytes += stats.BlockBytes - stats.AllocationBytes;
+        result.totalUsageBytes += budgets[i].UsageBytes;
+    }
+
+    return result;
+}
+
+bool QRhiD3D12::makeThreadLocalNativeContextCurrent()
+{
+    // not applicable
+    return false;
+}
+
+void QRhiD3D12::releaseCachedResources()
+{
+    shaderBytecodeCache.data.clear();
+}
+
+bool QRhiD3D12::isDeviceLost() const
+{
+    return deviceLost;
+}
+
+QByteArray QRhiD3D12::pipelineCacheData()
+{
+    return {};
+}
+
+void QRhiD3D12::setPipelineCacheData(const QByteArray &data)
+{
+    Q_UNUSED(data);
+}
+
+QRhiRenderBuffer *QRhiD3D12::createRenderBuffer(QRhiRenderBuffer::Type type, const QSize &pixelSize,
+                                                int sampleCount, QRhiRenderBuffer::Flags flags,
+                                                QRhiTexture::Format backingFormatHint)
+{
+    return new QD3D12RenderBuffer(this, type, pixelSize, sampleCount, flags, backingFormatHint);
+}
+
+QRhiTexture *QRhiD3D12::createTexture(QRhiTexture::Format format,
+                                      const QSize &pixelSize, int depth, int arraySize,
+                                      int sampleCount, QRhiTexture::Flags flags)
+{
+    return new QD3D12Texture(this, format, pixelSize, depth, arraySize, sampleCount, flags);
+}
+
+QRhiSampler *QRhiD3D12::createSampler(QRhiSampler::Filter magFilter, QRhiSampler::Filter minFilter,
+                                      QRhiSampler::Filter mipmapMode,
+                                      QRhiSampler::AddressMode u, QRhiSampler::AddressMode v, QRhiSampler::AddressMode w)
+{
+    return new QD3D12Sampler(this, magFilter, minFilter, mipmapMode, u, v, w);
+}
+
+QRhiTextureRenderTarget *QRhiD3D12::createTextureRenderTarget(const QRhiTextureRenderTargetDescription &desc,
+                                                              QRhiTextureRenderTarget::Flags flags)
+{
+    return new QD3D12TextureRenderTarget(this, desc, flags);
+}
+
+QRhiGraphicsPipeline *QRhiD3D12::createGraphicsPipeline()
+{
+    return new QD3D12GraphicsPipeline(this);
+}
+
+QRhiComputePipeline *QRhiD3D12::createComputePipeline()
+{
+    return new QD3D12ComputePipeline(this);
+}
+
+QRhiShaderResourceBindings *QRhiD3D12::createShaderResourceBindings()
+{
+    return new QD3D12ShaderResourceBindings(this);
+}
+
+void QRhiD3D12::setGraphicsPipeline(QRhiCommandBuffer *cb, QRhiGraphicsPipeline *ps)
+{
+    QD3D12CommandBuffer *cbD = QRHI_RES(QD3D12CommandBuffer, cb);
+    Q_ASSERT(cbD->recordingPass == QD3D12CommandBuffer::RenderPass);
+    QD3D12GraphicsPipeline *psD = QRHI_RES(QD3D12GraphicsPipeline, ps);
+    const bool pipelineChanged = cbD->currentGraphicsPipeline != psD || cbD->currentPipelineGeneration != psD->generation;
+
+    if (pipelineChanged) {
+        cbD->currentGraphicsPipeline = psD;
+        cbD->currentComputePipeline = nullptr;
+        cbD->currentPipelineGeneration = psD->generation;
+
+        if (QD3D12Pipeline *pipeline = pipelinePool.lookupRef(psD->handle)) {
+            Q_ASSERT(pipeline->type == QD3D12Pipeline::Graphics);
+            cbD->cmdList->SetPipelineState(pipeline->pso);
+            if (QD3D12RootSignature *rs = rootSignaturePool.lookupRef(psD->rootSigHandle))
+                cbD->cmdList->SetGraphicsRootSignature(rs->rootSig);
+        }
+
+        cbD->cmdList->IASetPrimitiveTopology(psD->topology);
+    }
+}
+
+void QRhiD3D12::visitUniformBuffer(QD3D12Stage s,
+                                   const QRhiShaderResourceBinding::Data::UniformBufferData &d,
+                                   int,
+                                   int binding,
+                                   int dynamicOffsetCount,
+                                   const QRhiCommandBuffer::DynamicOffset *dynamicOffsets)
+{
+    QD3D12Buffer *bufD = QRHI_RES(QD3D12Buffer, d.buf);
+    quint32 offset = d.offset;
+    if (d.hasDynamicOffset) {
+        for (int i = 0; i < dynamicOffsetCount; ++i) {
+            const QRhiCommandBuffer::DynamicOffset &dynOfs(dynamicOffsets[i]);
+            if (dynOfs.first == binding) {
+                Q_ASSERT(aligned(dynOfs.second, 256u) == dynOfs.second);
+                offset += dynOfs.second;
+            }
+        }
+    }
+    visitorData.cbufs[s].append({ bufD->handles[currentFrameSlot], offset });
+}
+
+void QRhiD3D12::visitTexture(QD3D12Stage s,
+                             const QRhiShaderResourceBinding::TextureAndSampler &d,
+                             int)
+{
+    QD3D12Texture *texD = QRHI_RES(QD3D12Texture, d.tex);
+    visitorData.srvs[s].append(texD->srv);
+}
+
+void QRhiD3D12::visitSampler(QD3D12Stage s,
+                             const QRhiShaderResourceBinding::TextureAndSampler &d,
+                             int)
+{
+    QD3D12Sampler *samplerD = QRHI_RES(QD3D12Sampler, d.sampler);
+    visitorData.samplers[s].append(samplerD->lookupOrCreateShaderVisibleDescriptor());
+}
+
+void QRhiD3D12::visitStorageBuffer(QD3D12Stage s,
+                                   const QRhiShaderResourceBinding::Data::StorageBufferData &d,
+                                   QD3D12ShaderResourceVisitor::StorageOp,
+                                   int)
+{
+    QD3D12Buffer *bufD = QRHI_RES(QD3D12Buffer, d.buf);
+    // SPIRV-Cross generated HLSL uses RWByteAddressBuffer
+    D3D12_UNORDERED_ACCESS_VIEW_DESC uavDesc = {};
+    uavDesc.Format = DXGI_FORMAT_R32_TYPELESS;
+    uavDesc.ViewDimension = D3D12_UAV_DIMENSION_BUFFER;
+    uavDesc.Buffer.FirstElement = d.offset / 4;
+    uavDesc.Buffer.NumElements = aligned(bufD->m_size - d.offset, 4u) / 4;
+    uavDesc.Buffer.Flags = D3D12_BUFFER_UAV_FLAG_RAW;
+    visitorData.uavs[s].append({ bufD->handles[0], uavDesc });
+}
+
+void QRhiD3D12::visitStorageImage(QD3D12Stage s,
+                                  const QRhiShaderResourceBinding::Data::StorageImageData &d,
+                                  QD3D12ShaderResourceVisitor::StorageOp,
+                                  int)
+{
+    QD3D12Texture *texD = QRHI_RES(QD3D12Texture, d.tex);
+    const bool isCube = texD->m_flags.testFlag(QRhiTexture::CubeMap);
+    const bool isArray = texD->m_flags.testFlag(QRhiTexture::TextureArray);
+    const bool is3D = texD->m_flags.testFlag(QRhiTexture::ThreeDimensional);
+    D3D12_UNORDERED_ACCESS_VIEW_DESC uavDesc = {};
+    uavDesc.Format = texD->dxgiFormat;
+    if (isCube) {
+        uavDesc.ViewDimension = D3D12_UAV_DIMENSION_TEXTURE2DARRAY;
+        uavDesc.Texture2DArray.MipSlice = UINT(d.level);
+        uavDesc.Texture2DArray.FirstArraySlice = 0;
+        uavDesc.Texture2DArray.ArraySize = 6;
+    } else if (isArray) {
+        uavDesc.ViewDimension = D3D12_UAV_DIMENSION_TEXTURE2DARRAY;
+        uavDesc.Texture2DArray.MipSlice = UINT(d.level);
+        uavDesc.Texture2DArray.FirstArraySlice = 0;
+        uavDesc.Texture2DArray.ArraySize = UINT(qMax(0, texD->m_arraySize));
+    } else if (is3D) {
+        uavDesc.ViewDimension = D3D12_UAV_DIMENSION_TEXTURE3D;
+        uavDesc.Texture3D.MipSlice = UINT(d.level);
+    } else {
+        uavDesc.ViewDimension = D3D12_UAV_DIMENSION_TEXTURE2D;
+        uavDesc.Texture2D.MipSlice = UINT(d.level);
+    }
+    visitorData.uavs[s].append({ texD->handle, uavDesc });
+}
+
+void QRhiD3D12::setShaderResources(QRhiCommandBuffer *cb, QRhiShaderResourceBindings *srb,
+                                   int dynamicOffsetCount,
+                                   const QRhiCommandBuffer::DynamicOffset *dynamicOffsets)
+{
+    QD3D12CommandBuffer *cbD = QRHI_RES(QD3D12CommandBuffer, cb);
+    Q_ASSERT(cbD->recordingPass != QD3D12CommandBuffer::NoPass);
+    QD3D12GraphicsPipeline *gfxPsD = QRHI_RES(QD3D12GraphicsPipeline, cbD->currentGraphicsPipeline);
+    QD3D12ComputePipeline *compPsD = QRHI_RES(QD3D12ComputePipeline, cbD->currentComputePipeline);
+
+    if (!srb) {
+        if (gfxPsD)
+            srb = gfxPsD->m_shaderResourceBindings;
+        else
+            srb = compPsD->m_shaderResourceBindings;
+    }
+
+    QD3D12ShaderResourceBindings *srbD = QRHI_RES(QD3D12ShaderResourceBindings, srb);
+
+    for (int i = 0, ie = srbD->sortedBindings.size(); i != ie; ++i) {
+        const QRhiShaderResourceBinding::Data *b = shaderResourceBindingData(srbD->sortedBindings[i]);
+        switch (b->type) {
+        case QRhiShaderResourceBinding::UniformBuffer:
+        {
+            QD3D12Buffer *bufD = QRHI_RES(QD3D12Buffer, b->u.ubuf.buf);
+            Q_ASSERT(bufD->m_usage.testFlag(QRhiBuffer::UniformBuffer));
+            Q_ASSERT(bufD->m_type == QRhiBuffer::Dynamic);
+            bufD->executeHostWritesForFrameSlot(currentFrameSlot);
+        }
+            break;
+        case QRhiShaderResourceBinding::SampledTexture:
+        case QRhiShaderResourceBinding::Texture:
+        case QRhiShaderResourceBinding::Sampler:
+        {
+            const QRhiShaderResourceBinding::Data::TextureAndOrSamplerData *data = &b->u.stex;
+            for (int elem = 0; elem < data->count; ++elem) {
+                QD3D12Texture *texD = QRHI_RES(QD3D12Texture, data->texSamplers[elem].tex);
+                QD3D12Sampler *samplerD = QRHI_RES(QD3D12Sampler, data->texSamplers[elem].sampler);
+                // We use the same code path for both combined and separate
+                // images and samplers, so tex or sampler (but not both) can be
+                // null here.
+                Q_ASSERT(texD || samplerD);
+                if (texD) {
+                    UINT state = 0;
+                    if (b->stage == QRhiShaderResourceBinding::FragmentStage) {
+                        state = D3D12_RESOURCE_STATE_PIXEL_SHADER_RESOURCE;
+                    } else if (b->stage.testFlag(QRhiShaderResourceBinding::FragmentStage)) {
+                        state = D3D12_RESOURCE_STATE_PIXEL_SHADER_RESOURCE | D3D12_RESOURCE_STATE_NON_PIXEL_SHADER_RESOURCE;
+                    } else {
+                        state = D3D12_RESOURCE_STATE_NON_PIXEL_SHADER_RESOURCE;
+                    }
+                    barrierGen.addTransitionBarrier(texD->handle, D3D12_RESOURCE_STATES(state));
+                    barrierGen.enqueueBufferedTransitionBarriers(cbD);
+                }
+            }
+        }
+            break;
+        case QRhiShaderResourceBinding::ImageLoad:
+        case QRhiShaderResourceBinding::ImageStore:
+        case QRhiShaderResourceBinding::ImageLoadStore:
+        {
+            QD3D12Texture *texD = QRHI_RES(QD3D12Texture, b->u.simage.tex);
+            if (QD3D12Resource *res = resourcePool.lookupRef(texD->handle)) {
+                if (res->uavUsage) {
+                    if (res->uavUsage & QD3D12Resource::UavUsageWrite) {
+                        // RaW or WaW
+                        barrierGen.enqueueUavBarrier(cbD, texD->handle);
+                    } else {
+                        if (b->type == QRhiShaderResourceBinding::ImageStore
+                                || b->type == QRhiShaderResourceBinding::ImageLoadStore)
+                        {
+                            // WaR or WaW
+                            barrierGen.enqueueUavBarrier(cbD, texD->handle);
+                        }
+                    }
+                }
+                res->uavUsage = 0;
+                if (b->type == QRhiShaderResourceBinding::ImageLoad || b->type == QRhiShaderResourceBinding::ImageLoadStore)
+                    res->uavUsage |= QD3D12Resource::UavUsageRead;
+                if (b->type == QRhiShaderResourceBinding::ImageStore || b->type == QRhiShaderResourceBinding::ImageLoadStore)
+                    res->uavUsage |= QD3D12Resource::UavUsageWrite;
+                barrierGen.addTransitionBarrier(texD->handle, D3D12_RESOURCE_STATE_UNORDERED_ACCESS);
+                barrierGen.enqueueBufferedTransitionBarriers(cbD);
+            }
+        }
+            break;
+        case QRhiShaderResourceBinding::BufferLoad:
+        case QRhiShaderResourceBinding::BufferStore:
+        case QRhiShaderResourceBinding::BufferLoadStore:
+        {
+            QD3D12Buffer *bufD = QRHI_RES(QD3D12Buffer, b->u.sbuf.buf);
+            Q_ASSERT(bufD->m_usage.testFlag(QRhiBuffer::StorageBuffer));
+            Q_ASSERT(bufD->m_type != QRhiBuffer::Dynamic);
+            if (QD3D12Resource *res = resourcePool.lookupRef(bufD->handles[0])) {
+                if (res->uavUsage) {
+                    if (res->uavUsage & QD3D12Resource::UavUsageWrite) {
+                        // RaW or WaW
+                        barrierGen.enqueueUavBarrier(cbD, bufD->handles[0]);
+                    } else {
+                        if (b->type == QRhiShaderResourceBinding::BufferStore
+                                || b->type == QRhiShaderResourceBinding::BufferLoadStore)
+                        {
+                            // WaR or WaW
+                            barrierGen.enqueueUavBarrier(cbD, bufD->handles[0]);
+                        }
+                    }
+                }
+                res->uavUsage = 0;
+                if (b->type == QRhiShaderResourceBinding::BufferLoad || b->type == QRhiShaderResourceBinding::BufferLoadStore)
+                    res->uavUsage |= QD3D12Resource::UavUsageRead;
+                if (b->type == QRhiShaderResourceBinding::BufferStore || b->type == QRhiShaderResourceBinding::BufferLoadStore)
+                    res->uavUsage |= QD3D12Resource::UavUsageWrite;
+                barrierGen.addTransitionBarrier(bufD->handles[0], D3D12_RESOURCE_STATE_UNORDERED_ACCESS);
+                barrierGen.enqueueBufferedTransitionBarriers(cbD);
+            }
+        }
+            break;
+        }
+    }
+
+    const bool srbChanged = gfxPsD ? (cbD->currentGraphicsSrb != srb) : (cbD->currentComputeSrb != srb);
+    const bool srbRebuilt = cbD->currentSrbGeneration != srbD->generation;
+
+    if (srbChanged || srbRebuilt || srbD->hasDynamicOffset) {
+        const QD3D12ShaderStageData *stageData = gfxPsD ? gfxPsD->stageData.data() : &compPsD->stageData;
+
+        // The order of root parameters must match
+        // QD3D12ShaderResourceBindings::createRootSignature(), meaning the
+        // logic below must mirror that function (uniform buffers first etc.)
+
+        QD3D12ShaderResourceVisitor visitor(srbD, stageData, gfxPsD ? 5 : 1);
+
+        visitorData = {};
+
+        using namespace std::placeholders;
+        visitor.uniformBuffer = std::bind(&QRhiD3D12::visitUniformBuffer, this, _1, _2, _3, _4, dynamicOffsetCount, dynamicOffsets);
+        visitor.texture = std::bind(&QRhiD3D12::visitTexture, this, _1, _2, _3);
+        visitor.sampler = std::bind(&QRhiD3D12::visitSampler, this, _1, _2, _3);
+        visitor.storageBuffer = std::bind(&QRhiD3D12::visitStorageBuffer, this, _1, _2, _3, _4);
+        visitor.storageImage = std::bind(&QRhiD3D12::visitStorageImage, this, _1, _2, _3, _4);
+
+        visitor.visit();
+
+        quint32 cbvSrvUavCount = 0;
+        for (int s = 0; s < 6; ++s) {
+            // CBs use root constant buffer views, no need to count them here
+            cbvSrvUavCount += visitorData.srvs[s].count();
+            cbvSrvUavCount += visitorData.uavs[s].count();
+        }
+
+        bool gotNewHeap = false;
+        if (!ensureShaderVisibleDescriptorHeapCapacity(&shaderVisibleCbvSrvUavHeap,
+                                                       D3D12_DESCRIPTOR_HEAP_TYPE_CBV_SRV_UAV,
+                                                       currentFrameSlot,
+                                                       cbvSrvUavCount,
+                                                       &gotNewHeap))
+        {
+            return;
+        }
+        if (gotNewHeap) {
+            qCDebug(QRHI_LOG_INFO, "Created new shader-visible CBV/SRV/UAV descriptor heap,"
+                    " per-frame slice size is now %u,"
+                    " if this happens frequently then that's not great.",
+                    shaderVisibleCbvSrvUavHeap.perFrameHeapSlice[0].capacity);
+            bindShaderVisibleHeaps(cbD);
+        }
+
+        int rootParamIndex = 0;
+        for (int s = 0; s < 6; ++s) {
+            if (!visitorData.cbufs[s].isEmpty()) {
+                for (int i = 0, count = visitorData.cbufs[s].count(); i < count; ++i) {
+                    const auto &cbuf(visitorData.cbufs[s][i]);
+                    if (QD3D12Resource *res = resourcePool.lookupRef(cbuf.first)) {
+                        quint32 offset = cbuf.second;
+                        D3D12_GPU_VIRTUAL_ADDRESS gpuAddr = res->resource->GetGPUVirtualAddress() + offset;
+                        if (cbD->currentGraphicsPipeline)
+                            cbD->cmdList->SetGraphicsRootConstantBufferView(rootParamIndex, gpuAddr);
+                        else
+                            cbD->cmdList->SetComputeRootConstantBufferView(rootParamIndex, gpuAddr);
+                    }
+                    rootParamIndex += 1;
+                }
+            }
+        }
+        for (int s = 0; s < 6; ++s) {
+            if (!visitorData.srvs[s].isEmpty()) {
+                QD3D12DescriptorHeap &gpuSrvHeap(shaderVisibleCbvSrvUavHeap.perFrameHeapSlice[currentFrameSlot]);
+                QD3D12Descriptor startDesc = gpuSrvHeap.get(visitorData.srvs[s].count());
+                for (int i = 0, count = visitorData.srvs[s].count(); i < count; ++i) {
+                    const auto &srv(visitorData.srvs[s][i]);
+                    dev->CopyDescriptorsSimple(1, gpuSrvHeap.incremented(startDesc, i).cpuHandle, srv.cpuHandle,
+                                               D3D12_DESCRIPTOR_HEAP_TYPE_CBV_SRV_UAV);
+                }
+
+                if (cbD->currentGraphicsPipeline)
+                    cbD->cmdList->SetGraphicsRootDescriptorTable(rootParamIndex, startDesc.gpuHandle);
+                else if (cbD->currentComputePipeline)
+                    cbD->cmdList->SetComputeRootDescriptorTable(rootParamIndex, startDesc.gpuHandle);
+
+                rootParamIndex += 1;
+            }
+        }
+        for (int s = 0; s < 6; ++s) {
+            // Samplers are one parameter / descriptor table each, and the
+            // descriptor is from the shader visible sampler heap already.
+            for (const QD3D12Descriptor &samplerDescriptor : visitorData.samplers[s]) {
+                if (cbD->currentGraphicsPipeline)
+                    cbD->cmdList->SetGraphicsRootDescriptorTable(rootParamIndex, samplerDescriptor.gpuHandle);
+                else if (cbD->currentComputePipeline)
+                    cbD->cmdList->SetComputeRootDescriptorTable(rootParamIndex, samplerDescriptor.gpuHandle);
+
+                rootParamIndex += 1;
+            }
+        }
+        for (int s = 0; s < 6; ++s) {
+            if (!visitorData.uavs[s].isEmpty()) {
+                QD3D12DescriptorHeap &gpuUavHeap(shaderVisibleCbvSrvUavHeap.perFrameHeapSlice[currentFrameSlot]);
+                QD3D12Descriptor startDesc = gpuUavHeap.get(visitorData.uavs[s].count());
+                for (int i = 0, count = visitorData.uavs[s].count(); i < count; ++i) {
+                    const auto &uav(visitorData.uavs[s][i]);
+                    if (QD3D12Resource *res = resourcePool.lookupRef(uav.first)) {
+                        dev->CreateUnorderedAccessView(res->resource, nullptr, &uav.second,
+                                                       gpuUavHeap.incremented(startDesc, i).cpuHandle);
+                    } else {
+                        dev->CreateUnorderedAccessView(nullptr, nullptr, nullptr,
+                                                       gpuUavHeap.incremented(startDesc, i).cpuHandle);
+                    }
+                }
+
+                if (cbD->currentGraphicsPipeline)
+                    cbD->cmdList->SetGraphicsRootDescriptorTable(rootParamIndex, startDesc.gpuHandle);
+                else if (cbD->currentComputePipeline)
+                    cbD->cmdList->SetComputeRootDescriptorTable(rootParamIndex, startDesc.gpuHandle);
+
+                rootParamIndex += 1;
+            }
+        }
+
+        if (gfxPsD) {
+            cbD->currentGraphicsSrb = srb;
+            cbD->currentComputeSrb = nullptr;
+        } else {
+            cbD->currentGraphicsSrb = nullptr;
+            cbD->currentComputeSrb = srb;
+        }
+        cbD->currentSrbGeneration = srbD->generation;
+    }
+}
+
+void QRhiD3D12::setVertexInput(QRhiCommandBuffer *cb,
+                               int startBinding, int bindingCount, const QRhiCommandBuffer::VertexInput *bindings,
+                               QRhiBuffer *indexBuf, quint32 indexOffset, QRhiCommandBuffer::IndexFormat indexFormat)
+{
+    QD3D12CommandBuffer *cbD = QRHI_RES(QD3D12CommandBuffer, cb);
+    Q_ASSERT(cbD->recordingPass == QD3D12CommandBuffer::RenderPass);
+
+    bool needsBindVBuf = false;
+    for (int i = 0; i < bindingCount; ++i) {
+        const int inputSlot = startBinding + i;
+        QD3D12Buffer *bufD = QRHI_RES(QD3D12Buffer, bindings[i].first);
+        Q_ASSERT(bufD->m_usage.testFlag(QRhiBuffer::VertexBuffer));
+        const bool isDynamic = bufD->m_type == QRhiBuffer::Dynamic;
+        if (isDynamic)
+            bufD->executeHostWritesForFrameSlot(currentFrameSlot);
+
+        if (cbD->currentVertexBuffers[inputSlot] != bufD->handles[isDynamic ? currentFrameSlot : 0]
+                || cbD->currentVertexOffsets[inputSlot] != bindings[i].second)
+        {
+            needsBindVBuf = true;
+            cbD->currentVertexBuffers[inputSlot] = bufD->handles[isDynamic ? currentFrameSlot : 0];
+            cbD->currentVertexOffsets[inputSlot] = bindings[i].second;
+        }
+    }
+
+    if (needsBindVBuf) {
+        QVarLengthArray<D3D12_VERTEX_BUFFER_VIEW, 4> vbv;
+        vbv.reserve(bindingCount);
+
+        QD3D12GraphicsPipeline *psD = cbD->currentGraphicsPipeline;
+        const QRhiVertexInputLayout &inputLayout(psD->m_vertexInputLayout);
+        const int inputBindingCount = inputLayout.cendBindings() - inputLayout.cbeginBindings();
+
+        for (int i = 0, ie = qMin(bindingCount, inputBindingCount); i != ie; ++i) {
+            QD3D12Buffer *bufD = QRHI_RES(QD3D12Buffer, bindings[i].first);
+            const QD3D12ObjectHandle handle = bufD->handles[bufD->m_type == QRhiBuffer::Dynamic ? currentFrameSlot : 0];
+            const quint32 offset = bindings[i].second;
+            const quint32 stride = inputLayout.bindingAt(i)->stride();
+
+            if (bufD->m_type != QRhiBuffer::Dynamic) {
+                barrierGen.addTransitionBarrier(handle, D3D12_RESOURCE_STATE_VERTEX_AND_CONSTANT_BUFFER);
+                barrierGen.enqueueBufferedTransitionBarriers(cbD);
+            }
+
+            if (QD3D12Resource *res = resourcePool.lookupRef(handle)) {
+                vbv.append({
+                    res->resource->GetGPUVirtualAddress() + offset,
+                    UINT(res->desc.Width - offset),
+                    stride
+                });
+            }
+        }
+
+        cbD->cmdList->IASetVertexBuffers(UINT(startBinding), vbv.count(), vbv.constData());
+    }
+
+    if (indexBuf) {
+        QD3D12Buffer *ibufD = QRHI_RES(QD3D12Buffer, indexBuf);
+        Q_ASSERT(ibufD->m_usage.testFlag(QRhiBuffer::IndexBuffer));
+        const bool isDynamic = ibufD->m_type == QRhiBuffer::Dynamic;
+        if (isDynamic)
+            ibufD->executeHostWritesForFrameSlot(currentFrameSlot);
+
+        const DXGI_FORMAT dxgiFormat = indexFormat == QRhiCommandBuffer::IndexUInt16 ? DXGI_FORMAT_R16_UINT
+                                                                                     : DXGI_FORMAT_R32_UINT;
+        if (cbD->currentIndexBuffer != ibufD->handles[isDynamic ? currentFrameSlot : 0]
+                || cbD->currentIndexOffset != indexOffset
+                || cbD->currentIndexFormat != dxgiFormat)
+        {
+            cbD->currentIndexBuffer = ibufD->handles[isDynamic ? currentFrameSlot : 0];
+            cbD->currentIndexOffset = indexOffset;
+            cbD->currentIndexFormat = dxgiFormat;
+
+            if (ibufD->m_type != QRhiBuffer::Dynamic) {
+                barrierGen.addTransitionBarrier(cbD->currentIndexBuffer, D3D12_RESOURCE_STATE_INDEX_BUFFER);
+                barrierGen.enqueueBufferedTransitionBarriers(cbD);
+            }
+
+            if (QD3D12Resource *res = resourcePool.lookupRef(cbD->currentIndexBuffer)) {
+                const D3D12_INDEX_BUFFER_VIEW ibv = {
+                    res->resource->GetGPUVirtualAddress() + indexOffset,
+                    UINT(res->desc.Width - indexOffset),
+                    dxgiFormat
+                };
+                cbD->cmdList->IASetIndexBuffer(&ibv);
+            }
+        }
+    }
+}
+
+void QRhiD3D12::setViewport(QRhiCommandBuffer *cb, const QRhiViewport &viewport)
+{
+    QD3D12CommandBuffer *cbD = QRHI_RES(QD3D12CommandBuffer, cb);
+    Q_ASSERT(cbD->recordingPass == QD3D12CommandBuffer::RenderPass);
+    Q_ASSERT(cbD->currentTarget);
+    const QSize outputSize = cbD->currentTarget->pixelSize();
+
+    // D3D expects top-left, QRhiViewport is bottom-left
+    float x, y, w, h;
+    if (!qrhi_toTopLeftRenderTargetRect<UnBounded>(outputSize, viewport.viewport(), &x, &y, &w, &h))
+        return;
+
+    D3D12_VIEWPORT v;
+    v.TopLeftX = x;
+    v.TopLeftY = y;
+    v.Width = w;
+    v.Height = h;
+    v.MinDepth = viewport.minDepth();
+    v.MaxDepth = viewport.maxDepth();
+    cbD->cmdList->RSSetViewports(1, &v);
+
+    if (cbD->currentGraphicsPipeline
+            && !cbD->currentGraphicsPipeline->flags().testFlag(QRhiGraphicsPipeline::UsesScissor))
+    {
+        qrhi_toTopLeftRenderTargetRect<Bounded>(outputSize, viewport.viewport(), &x, &y, &w, &h);
+        D3D12_RECT r;
+        r.left = x;
+        r.top = y;
+        // right and bottom are exclusive
+        r.right = x + w;
+        r.bottom = y + h;
+        cbD->cmdList->RSSetScissorRects(1, &r);
+    }
+}
+
+void QRhiD3D12::setScissor(QRhiCommandBuffer *cb, const QRhiScissor &scissor)
+{
+    QD3D12CommandBuffer *cbD = QRHI_RES(QD3D12CommandBuffer, cb);
+    Q_ASSERT(cbD->recordingPass == QD3D12CommandBuffer::RenderPass);
+    Q_ASSERT(cbD->currentTarget);
+    const QSize outputSize = cbD->currentTarget->pixelSize();
+
+    // D3D expects top-left, QRhiScissor is bottom-left
+    int x, y, w, h;
+    if (!qrhi_toTopLeftRenderTargetRect<Bounded>(outputSize, scissor.scissor(), &x, &y, &w, &h))
+        return;
+
+    D3D12_RECT r;
+    r.left = x;
+    r.top = y;
+    // right and bottom are exclusive
+    r.right = x + w;
+    r.bottom = y + h;
+    cbD->cmdList->RSSetScissorRects(1, &r);
+}
+
+void QRhiD3D12::setBlendConstants(QRhiCommandBuffer *cb, const QColor &c)
+{
+    QD3D12CommandBuffer *cbD = QRHI_RES(QD3D12CommandBuffer, cb);
+    Q_ASSERT(cbD->recordingPass == QD3D12CommandBuffer::RenderPass);
+    float v[4] = { c.redF(), c.greenF(), c.blueF(), c.alphaF() };
+    cbD->cmdList->OMSetBlendFactor(v);
+}
+
+void QRhiD3D12::setStencilRef(QRhiCommandBuffer *cb, quint32 refValue)
+{
+    QD3D12CommandBuffer *cbD = QRHI_RES(QD3D12CommandBuffer, cb);
+    Q_ASSERT(cbD->recordingPass == QD3D12CommandBuffer::RenderPass);
+    cbD->cmdList->OMSetStencilRef(refValue);
+}
+
+void QRhiD3D12::draw(QRhiCommandBuffer *cb, quint32 vertexCount,
+                     quint32 instanceCount, quint32 firstVertex, quint32 firstInstance)
+{
+    QD3D12CommandBuffer *cbD = QRHI_RES(QD3D12CommandBuffer, cb);
+    Q_ASSERT(cbD->recordingPass == QD3D12CommandBuffer::RenderPass);
+    cbD->cmdList->DrawInstanced(vertexCount, instanceCount, firstVertex, firstInstance);
+}
+
+void QRhiD3D12::drawIndexed(QRhiCommandBuffer *cb, quint32 indexCount,
+                            quint32 instanceCount, quint32 firstIndex, qint32 vertexOffset, quint32 firstInstance)
+{
+    QD3D12CommandBuffer *cbD = QRHI_RES(QD3D12CommandBuffer, cb);
+    Q_ASSERT(cbD->recordingPass == QD3D12CommandBuffer::RenderPass);
+    cbD->cmdList->DrawIndexedInstanced(indexCount, instanceCount,
+                                       firstIndex, vertexOffset,
+                                       firstInstance);
+}
+
+void QRhiD3D12::debugMarkBegin(QRhiCommandBuffer *cb, const QByteArray &name)
+{
+    if (!debugMarkers)
+        return;
+
+    QD3D12CommandBuffer *cbD = QRHI_RES(QD3D12CommandBuffer, cb);
+#ifdef QRHI_D3D12_HAS_OLD_PIX
+    PIXBeginEvent(cbD->cmdList, PIX_COLOR_DEFAULT, reinterpret_cast<LPCWSTR>(QString::fromLatin1(name).utf16()));
+#else
+    Q_UNUSED(cbD);
+    Q_UNUSED(name);
+#endif
+}
+
+void QRhiD3D12::debugMarkEnd(QRhiCommandBuffer *cb)
+{
+    if (!debugMarkers)
+        return;
+
+    QD3D12CommandBuffer *cbD = QRHI_RES(QD3D12CommandBuffer, cb);
+#ifdef QRHI_D3D12_HAS_OLD_PIX
+    PIXEndEvent(cbD->cmdList);
+#else
+    Q_UNUSED(cbD);
+#endif
+}
+
+void QRhiD3D12::debugMarkMsg(QRhiCommandBuffer *cb, const QByteArray &msg)
+{
+    if (!debugMarkers)
+        return;
+
+    QD3D12CommandBuffer *cbD = QRHI_RES(QD3D12CommandBuffer, cb);
+#ifdef QRHI_D3D12_HAS_OLD_PIX
+    PIXSetMarker(cbD->cmdList, PIX_COLOR_DEFAULT, reinterpret_cast<LPCWSTR>(QString::fromLatin1(msg).utf16()));
+#else
+    Q_UNUSED(cbD);
+    Q_UNUSED(msg);
+#endif
+}
+
+const QRhiNativeHandles *QRhiD3D12::nativeHandles(QRhiCommandBuffer *cb)
+{
+    return QRHI_RES(QD3D12CommandBuffer, cb)->nativeHandles();
+}
+
+void QRhiD3D12::beginExternal(QRhiCommandBuffer *cb)
+{
+    Q_UNUSED(cb);
+}
+
+void QRhiD3D12::endExternal(QRhiCommandBuffer *cb)
+{
+    QD3D12CommandBuffer *cbD = QRHI_RES(QD3D12CommandBuffer, cb);
+    cbD->resetPerPassState();
+    bindShaderVisibleHeaps(cbD);
+    if (cbD->currentTarget) { // could be compute, no rendertarget then
+        QD3D12RenderTargetData *rtD = rtData(cbD->currentTarget);
+        cbD->cmdList->OMSetRenderTargets(UINT(rtD->colorAttCount),
+                                         rtD->rtv,
+                                         TRUE,
+                                         rtD->dsAttCount ? &rtD->dsv : nullptr);
+    }
+}
+
+double QRhiD3D12::lastCompletedGpuTime(QRhiCommandBuffer *cb)
+{
+    Q_UNUSED(cb);
+    return 0;
+}
+
+QRhi::FrameOpResult QRhiD3D12::beginFrame(QRhiSwapChain *swapChain, QRhi::BeginFrameFlags flags)
+{
+    Q_UNUSED(flags);
+
+    QD3D12SwapChain *swapChainD = QRHI_RES(QD3D12SwapChain, swapChain);
+    currentSwapChain = swapChainD;
+    currentFrameSlot = swapChainD->currentFrameSlot;
+    QD3D12SwapChain::FrameResources &fr(swapChainD->frameRes[currentFrameSlot]);
+
+    // We could do smarter things but mirror the Vulkan backend for now: Make
+    // sure the previous commands for this same frame slot have finished. Do
+    // this also for any other swapchain's commands with the same frame slot.
+    // While this reduces concurrency in render-to-swapchain-A,
+    // render-to-swapchain-B, repeat kind of scenarios, it keeps resource usage
+    // safe: swapchain A starting its frame 0, followed by swapchain B starting
+    // its own frame 0 will make B wait for A's frame 0 commands. If a resource
+    // is written in B's frame or when B checks for pending resource releases,
+    // that won't mess up A's in-flight commands (as they are guaranteed not to
+    // be in flight anymore). With Qt Quick this situation cannot happen anyway
+    // by design (one QRhi per window).
+    for (QD3D12SwapChain *sc : std::as_const(swapchains))
+        sc->waitCommandCompletionForFrameSlot(currentFrameSlot); // note: swapChainD->currentFrameSlot, not sc's
+
+    HRESULT hr = cmdAllocators[currentFrameSlot]->Reset();
+    if (FAILED(hr)) {
+        qWarning("Failed to reset command allocator: %s",
+                 qPrintable(QSystemError::windowsComString(hr)));
+        return QRhi::FrameOpError;
+    }
+
+    if (!startCommandListForCurrentFrameSlot(&fr.cmdList))
+        return QRhi::FrameOpError;
+
+    QD3D12CommandBuffer *cbD = &swapChainD->cbWrapper;
+    cbD->cmdList = fr.cmdList;
+
+    swapChainD->rtWrapper.d.rtv[0] = swapChainD->sampleDesc.Count > 1
+            ? swapChainD->msaaRtvs[swapChainD->currentBackBufferIndex].cpuHandle
+            : swapChainD->rtvs[swapChainD->currentBackBufferIndex].cpuHandle;
+
+    swapChainD->rtWrapper.d.dsv = swapChainD->ds ? swapChainD->ds->dsv.cpuHandle
+                                                 : D3D12_CPU_DESCRIPTOR_HANDLE { 0 };
+
+    // Time to release things that are marked for currentFrameSlot since due to
+    // the wait above we know that the previous commands on the GPU for this
+    // slot must have finished already.
+    releaseQueue.executeDeferredReleases(currentFrameSlot);
+
+    // Full reset of the command buffer data.
+    cbD->resetState();
+
+    // Move the head back to zero for the per-frame shader-visible descriptor heap work areas.
+    shaderVisibleCbvSrvUavHeap.perFrameHeapSlice[currentFrameSlot].head = 0;
+    // Same for the small staging area.
+    smallStagingAreas[currentFrameSlot].head = 0;
+
+    bindShaderVisibleHeaps(cbD);
+
+    finishActiveReadbacks(); // last, in case the readback-completed callback issues rhi calls
+
+    return QRhi::FrameOpSuccess;
+}
+
+QRhi::FrameOpResult QRhiD3D12::endFrame(QRhiSwapChain *swapChain, QRhi::EndFrameFlags flags)
+{
+    QD3D12SwapChain *swapChainD = QRHI_RES(QD3D12SwapChain, swapChain);
+    Q_ASSERT(currentSwapChain == swapChainD);
+    QD3D12CommandBuffer *cbD = &swapChainD->cbWrapper;
+
+    QD3D12ObjectHandle backBufferResourceHandle = swapChainD->colorBuffers[swapChainD->currentBackBufferIndex];
+    if (swapChainD->sampleDesc.Count > 1) {
+        QD3D12ObjectHandle msaaBackBufferResourceHandle = swapChainD->msaaBuffers[swapChainD->currentBackBufferIndex];
+        barrierGen.addTransitionBarrier(msaaBackBufferResourceHandle, D3D12_RESOURCE_STATE_RESOLVE_SOURCE);
+        barrierGen.addTransitionBarrier(backBufferResourceHandle, D3D12_RESOURCE_STATE_RESOLVE_DEST);
+        barrierGen.enqueueBufferedTransitionBarriers(cbD);
+        const QD3D12Resource *src = resourcePool.lookupRef(msaaBackBufferResourceHandle);
+        const QD3D12Resource *dst = resourcePool.lookupRef(backBufferResourceHandle);
+        if (src && dst)
+            cbD->cmdList->ResolveSubresource(dst->resource, 0, src->resource, 0, swapChainD->colorFormat);
+    }
+
+    barrierGen.addTransitionBarrier(backBufferResourceHandle, D3D12_RESOURCE_STATE_PRESENT);
+    barrierGen.enqueueBufferedTransitionBarriers(cbD);
+
+    ID3D12GraphicsCommandList *cmdList = cbD->cmdList;
+    HRESULT hr = cmdList->Close();
+    if (FAILED(hr)) {
+        qWarning("Failed to close command list: %s",
+                 qPrintable(QSystemError::windowsComString(hr)));
+        return QRhi::FrameOpError;
+    }
+
+    ID3D12CommandList *execList[] = { cmdList };
+    cmdQueue->ExecuteCommandLists(1, execList);
+
+    if (!flags.testFlag(QRhi::SkipPresent)) {
+        UINT presentFlags = 0;
+        if (swapChainD->swapInterval == 0
+                && (swapChainD->swapChainFlags & DXGI_SWAP_CHAIN_FLAG_ALLOW_TEARING))
+        {
+            presentFlags |= DXGI_PRESENT_ALLOW_TEARING;
+        }
+        HRESULT hr = swapChainD->swapChain->Present(swapChainD->swapInterval, presentFlags);
+        if (hr == DXGI_ERROR_DEVICE_REMOVED || hr == DXGI_ERROR_DEVICE_RESET) {
+            qWarning("Device loss detected in Present()");
+            deviceLost = true;
+            return QRhi::FrameOpDeviceLost;
+        } else if (FAILED(hr)) {
+            qWarning("Failed to present: %s", qPrintable(QSystemError::windowsComString(hr)));
+            return QRhi::FrameOpError;
+        }
+
+        if (dcompDevice && swapChainD->dcompTarget && swapChainD->dcompVisual)
+            dcompDevice->Commit();
+    }
+
+    swapChainD->addCommandCompletionSignalForCurrentFrameSlot();
+
+    // NB! The deferred-release mechanism here differs from the older QRhi
+    // backends. There is no lastActiveFrameSlot tracking. Instead,
+    // currentFrameSlot is written to the registered entries now, and so the
+    // resources will get released in the frames_in_flight'th beginFrame()
+    // counting starting from now.
+    releaseQueue.activatePendingDeferredReleaseRequests(currentFrameSlot);
+
+    if (!flags.testFlag(QRhi::SkipPresent)) {
+        // Only move to the next slot if we presented. Otherwise will block and
+        // wait for completion in the next beginFrame already, but SkipPresent
+        // should be infrequent anyway.
+        swapChainD->currentFrameSlot = (swapChainD->currentFrameSlot + 1) % QD3D12_FRAMES_IN_FLIGHT;
+        swapChainD->currentBackBufferIndex = swapChainD->swapChain->GetCurrentBackBufferIndex();
+    }
+
+    currentSwapChain = nullptr;
+    return QRhi::FrameOpSuccess;
+}
+
+QRhi::FrameOpResult QRhiD3D12::beginOffscreenFrame(QRhiCommandBuffer **cb, QRhi::BeginFrameFlags flags)
+{
+    Q_UNUSED(flags);
+
+    // Switch to the next slot manually. Swapchains do not know about this
+    // which is good. So for example an onscreen, onscreen, offscreen,
+    // onscreen, onscreen, onscreen sequence of frames leads to 0, 1, 0, 0, 1,
+    // 0. (no strict alternation anymore) But this is not different from what
+    // happens when multiple swapchains are involved. Offscreen frames are
+    // synchronous anyway in the sense that they wait for execution to complete
+    // in endOffscreenFrame, so no resources used in that frame are busy
+    // anymore in the next frame.
+
+    currentFrameSlot = (currentFrameSlot + 1) % QD3D12_FRAMES_IN_FLIGHT;
+
+    for (QD3D12SwapChain *sc : std::as_const(swapchains))
+        sc->waitCommandCompletionForFrameSlot(currentFrameSlot); // note: not sc's currentFrameSlot
+
+    if (!offscreenCb[currentFrameSlot])
+        offscreenCb[currentFrameSlot] = new QD3D12CommandBuffer(this);
+    QD3D12CommandBuffer *cbD = offscreenCb[currentFrameSlot];
+    if (!startCommandListForCurrentFrameSlot(&cbD->cmdList))
+        return QRhi::FrameOpError;
+
+    releaseQueue.executeDeferredReleases(currentFrameSlot);
+    cbD->resetState();
+    shaderVisibleCbvSrvUavHeap.perFrameHeapSlice[currentFrameSlot].head = 0;
+    smallStagingAreas[currentFrameSlot].head = 0;
+
+    bindShaderVisibleHeaps(cbD);
+
+    offscreenActive = true;
+    *cb = cbD;
+
+    return QRhi::FrameOpSuccess;
+}
+
+QRhi::FrameOpResult QRhiD3D12::endOffscreenFrame(QRhi::EndFrameFlags flags)
+{
+    Q_UNUSED(flags);
+    Q_ASSERT(offscreenActive);
+    offscreenActive = false;
+
+    QD3D12CommandBuffer *cbD = offscreenCb[currentFrameSlot];
+    ID3D12GraphicsCommandList *cmdList = cbD->cmdList;
+    HRESULT hr = cmdList->Close();
+    if (FAILED(hr)) {
+        qWarning("Failed to close command list: %s",
+                 qPrintable(QSystemError::windowsComString(hr)));
+        return QRhi::FrameOpError;
+    }
+
+    ID3D12CommandList *execList[] = { cmdList };
+    cmdQueue->ExecuteCommandLists(1, execList);
+
+    releaseQueue.activatePendingDeferredReleaseRequests(currentFrameSlot);
+
+    // wait for completion
+    waitGpu();
+
+    // Here we know that executing the host-side reads for this (or any
+    // previous) frame is safe since we waited for completion above.
+    finishActiveReadbacks(true);
+
+    return QRhi::FrameOpSuccess;
+}
+
+QRhi::FrameOpResult QRhiD3D12::finish()
+{
+    if (!inFrame)
+        return QRhi::FrameOpSuccess;
+
+    QD3D12CommandBuffer *cbD = nullptr;
+    if (offscreenActive) {
+        Q_ASSERT(!currentSwapChain);
+        cbD = offscreenCb[currentFrameSlot];
+    } else {
+        Q_ASSERT(currentSwapChain);
+        cbD = &currentSwapChain->cbWrapper;
+    }
+    if (!cbD)
+        return QRhi::FrameOpError;
+
+    Q_ASSERT(cbD->recordingPass == QD3D12CommandBuffer::NoPass);
+
+    ID3D12GraphicsCommandList *cmdList = cbD->cmdList;
+    HRESULT hr = cmdList->Close();
+    if (FAILED(hr)) {
+        qWarning("Failed to close command list: %s",
+                 qPrintable(QSystemError::windowsComString(hr)));
+        return QRhi::FrameOpError;
+    }
+
+    ID3D12CommandList *execList[] = { cmdList };
+    cmdQueue->ExecuteCommandLists(1, execList);
+
+    releaseQueue.activatePendingDeferredReleaseRequests(currentFrameSlot);
+
+    // full blocking wait for everything, frame slots do not matter now
+    waitGpu();
+
+    hr = cmdAllocators[currentFrameSlot]->Reset();
+    if (FAILED(hr)) {
+        qWarning("Failed to reset command allocator: %s",
+                 qPrintable(QSystemError::windowsComString(hr)));
+        return QRhi::FrameOpError;
+    }
+
+    if (!startCommandListForCurrentFrameSlot(&cmdList))
+        return QRhi::FrameOpError;
+
+    cbD->resetState();
+
+    shaderVisibleCbvSrvUavHeap.perFrameHeapSlice[currentFrameSlot].head = 0;
+    smallStagingAreas[currentFrameSlot].head = 0;
+
+    bindShaderVisibleHeaps(cbD);
+
+    releaseQueue.executeDeferredReleases(currentFrameSlot);
+
+    finishActiveReadbacks(true);
+
+    return QRhi::FrameOpSuccess;
+}
+
+void QRhiD3D12::resourceUpdate(QRhiCommandBuffer *cb, QRhiResourceUpdateBatch *resourceUpdates)
+{
+    QD3D12CommandBuffer *cbD = QRHI_RES(QD3D12CommandBuffer, cb);
+    Q_ASSERT(cbD->recordingPass == QD3D12CommandBuffer::NoPass);
+    enqueueResourceUpdates(cbD, resourceUpdates);
+}
+
+void QRhiD3D12::beginPass(QRhiCommandBuffer *cb,
+                          QRhiRenderTarget *rt,
+                          const QColor &colorClearValue,
+                          const QRhiDepthStencilClearValue &depthStencilClearValue,
+                          QRhiResourceUpdateBatch *resourceUpdates,
+                          QRhiCommandBuffer::BeginPassFlags)
+{
+    QD3D12CommandBuffer *cbD = QRHI_RES(QD3D12CommandBuffer, cb);
+    Q_ASSERT(cbD->recordingPass == QD3D12CommandBuffer::NoPass);
+
+    if (resourceUpdates)
+        enqueueResourceUpdates(cbD, resourceUpdates);
+
+    QD3D12RenderTargetData *rtD = rtData(rt);
+    bool wantsColorClear = true;
+    bool wantsDsClear = true;
+    if (rt->resourceType() == QRhiRenderTarget::TextureRenderTarget) {
+        QD3D12TextureRenderTarget *rtTex = QRHI_RES(QD3D12TextureRenderTarget, rt);
+        wantsColorClear = !rtTex->m_flags.testFlag(QRhiTextureRenderTarget::PreserveColorContents);
+        wantsDsClear = !rtTex->m_flags.testFlag(QRhiTextureRenderTarget::PreserveDepthStencilContents);
+        if (!QRhiRenderTargetAttachmentTracker::isUpToDate<QD3D12Texture, QD3D12RenderBuffer>(rtTex->description(), rtD->currentResIdList))
+            rtTex->create();
+
+        for (auto it = rtTex->m_desc.cbeginColorAttachments(), itEnd = rtTex->m_desc.cendColorAttachments(); it != itEnd; ++it) {
+            QD3D12Texture *texD = QRHI_RES(QD3D12Texture, it->texture());
+            QD3D12Texture *resolveTexD = QRHI_RES(QD3D12Texture, it->resolveTexture());
+            QD3D12RenderBuffer *rbD = QRHI_RES(QD3D12RenderBuffer, it->renderBuffer());
+            if (texD)
+                barrierGen.addTransitionBarrier(texD->handle, D3D12_RESOURCE_STATE_RENDER_TARGET);
+            else if (rbD)
+                barrierGen.addTransitionBarrier(rbD->handle, D3D12_RESOURCE_STATE_RENDER_TARGET);
+            if (resolveTexD)
+                barrierGen.addTransitionBarrier(resolveTexD->handle, D3D12_RESOURCE_STATE_RENDER_TARGET);
+        }
+        if (rtTex->m_desc.depthStencilBuffer()) {
+            QD3D12RenderBuffer *rbD = QRHI_RES(QD3D12RenderBuffer, rtTex->m_desc.depthStencilBuffer());
+            Q_ASSERT(rbD->m_type == QRhiRenderBuffer::DepthStencil);
+            barrierGen.addTransitionBarrier(rbD->handle, D3D12_RESOURCE_STATE_DEPTH_WRITE);
+        } else if (rtTex->m_desc.depthTexture()) {
+            QD3D12Texture *depthTexD = QRHI_RES(QD3D12Texture, rtTex->m_desc.depthTexture());
+            barrierGen.addTransitionBarrier(depthTexD->handle, D3D12_RESOURCE_STATE_DEPTH_WRITE);
+        }
+        barrierGen.enqueueBufferedTransitionBarriers(cbD);
+    } else {
+        Q_ASSERT(currentSwapChain);
+        barrierGen.addTransitionBarrier(currentSwapChain->sampleDesc.Count > 1
+                                        ? currentSwapChain->msaaBuffers[currentSwapChain->currentBackBufferIndex]
+                                        : currentSwapChain->colorBuffers[currentSwapChain->currentBackBufferIndex],
+                                        D3D12_RESOURCE_STATE_RENDER_TARGET);
+        barrierGen.enqueueBufferedTransitionBarriers(cbD);
+    }
+
+    cbD->cmdList->OMSetRenderTargets(UINT(rtD->colorAttCount),
+                                     rtD->rtv,
+                                     TRUE,
+                                     rtD->dsAttCount ? &rtD->dsv : nullptr);
+
+    if (rtD->colorAttCount && wantsColorClear) {
+        float clearColor[4] = {
+            colorClearValue.redF(),
+            colorClearValue.greenF(),
+            colorClearValue.blueF(),
+            colorClearValue.alphaF()
+        };
+        for (int i = 0; i < rtD->colorAttCount; ++i)
+            cbD->cmdList->ClearRenderTargetView(rtD->rtv[i], clearColor, 0, nullptr);
+    }
+    if (rtD->dsAttCount && wantsDsClear) {
+        cbD->cmdList->ClearDepthStencilView(rtD->dsv,
+                                            D3D12_CLEAR_FLAGS(D3D12_CLEAR_FLAG_DEPTH | D3D12_CLEAR_FLAG_STENCIL),
+                                            depthStencilClearValue.depthClearValue(),
+                                            UINT8(depthStencilClearValue.stencilClearValue()),
+                                            0,
+                                            nullptr);
+    }
+
+    cbD->recordingPass = QD3D12CommandBuffer::RenderPass;
+    cbD->currentTarget = rt;
+
+    cbD->resetPerPassState();
+}
+
+void QRhiD3D12::endPass(QRhiCommandBuffer *cb, QRhiResourceUpdateBatch *resourceUpdates)
+{
+    QD3D12CommandBuffer *cbD = QRHI_RES(QD3D12CommandBuffer, cb);
+    Q_ASSERT(cbD->recordingPass == QD3D12CommandBuffer::RenderPass);
+
+    if (cbD->currentTarget->resourceType() == QRhiResource::TextureRenderTarget) {
+        QD3D12TextureRenderTarget *rtTex = QRHI_RES(QD3D12TextureRenderTarget, cbD->currentTarget);
+        for (auto it = rtTex->m_desc.cbeginColorAttachments(), itEnd = rtTex->m_desc.cendColorAttachments();
+             it != itEnd; ++it)
+        {
+            const QRhiColorAttachment &colorAtt(*it);
+            if (!colorAtt.resolveTexture())
+                continue;
+
+            QD3D12Texture *dstTexD = QRHI_RES(QD3D12Texture, colorAtt.resolveTexture());
+            QD3D12Resource *dstRes = resourcePool.lookupRef(dstTexD->handle);
+            if (!dstRes)
+                continue;
+
+            QD3D12Texture *srcTexD = QRHI_RES(QD3D12Texture, colorAtt.texture());
+            QD3D12RenderBuffer *srcRbD = QRHI_RES(QD3D12RenderBuffer, colorAtt.renderBuffer());
+            Q_ASSERT(srcTexD || srcRbD);
+            QD3D12Resource *srcRes = resourcePool.lookupRef(srcTexD ? srcTexD->handle : srcRbD->handle);
+            if (!srcRes)
+                continue;
+
+            if (srcTexD) {
+                if (srcTexD->dxgiFormat != dstTexD->dxgiFormat) {
+                    qWarning("Resolve source (%d) and destination (%d) formats do not match",
+                             int(srcTexD->dxgiFormat), int(dstTexD->dxgiFormat));
+                    continue;
+                }
+                if (srcTexD->sampleDesc.Count <= 1) {
+                    qWarning("Cannot resolve a non-multisample texture");
+                    continue;
+                }
+                if (srcTexD->m_pixelSize != dstTexD->m_pixelSize) {
+                    qWarning("Resolve source and destination sizes do not match");
+                    continue;
+                }
+            } else {
+                if (srcRbD->dxgiFormat != dstTexD->dxgiFormat) {
+                    qWarning("Resolve source (%d) and destination (%d) formats do not match",
+                             int(srcRbD->dxgiFormat), int(dstTexD->dxgiFormat));
+                    continue;
+                }
+                if (srcRbD->m_pixelSize != dstTexD->m_pixelSize) {
+                    qWarning("Resolve source and destination sizes do not match");
+                    continue;
+                }
+            }
+
+            barrierGen.addTransitionBarrier(srcTexD ? srcTexD->handle : srcRbD->handle, D3D12_RESOURCE_STATE_RESOLVE_SOURCE);
+            barrierGen.addTransitionBarrier(dstTexD->handle, D3D12_RESOURCE_STATE_RESOLVE_DEST);
+            barrierGen.enqueueBufferedTransitionBarriers(cbD);
+
+            const UINT srcSubresource = calcSubresource(0, UINT(colorAtt.layer()), 1);
+            const UINT dstSubresource = calcSubresource(UINT(colorAtt.resolveLevel()),
+                                                        UINT(colorAtt.resolveLayer()),
+                                                        dstTexD->mipLevelCount);
+            cbD->cmdList->ResolveSubresource(dstRes->resource, dstSubresource,
+                                             srcRes->resource, srcSubresource,
+                                             dstTexD->dxgiFormat);
+        }
+
+    }
+
+    cbD->recordingPass = QD3D12CommandBuffer::NoPass;
+    cbD->currentTarget = nullptr;
+
+    if (resourceUpdates)
+        enqueueResourceUpdates(cbD, resourceUpdates);
+}
+
+void QRhiD3D12::beginComputePass(QRhiCommandBuffer *cb,
+                                 QRhiResourceUpdateBatch *resourceUpdates,
+                                 QRhiCommandBuffer::BeginPassFlags)
+{
+    QD3D12CommandBuffer *cbD = QRHI_RES(QD3D12CommandBuffer, cb);
+    Q_ASSERT(cbD->recordingPass == QD3D12CommandBuffer::NoPass);
+
+    if (resourceUpdates)
+        enqueueResourceUpdates(cbD, resourceUpdates);
+
+    cbD->recordingPass = QD3D12CommandBuffer::ComputePass;
+
+    cbD->resetPerPassState();
+}
+
+void QRhiD3D12::endComputePass(QRhiCommandBuffer *cb, QRhiResourceUpdateBatch *resourceUpdates)
+{
+    QD3D12CommandBuffer *cbD = QRHI_RES(QD3D12CommandBuffer, cb);
+    Q_ASSERT(cbD->recordingPass == QD3D12CommandBuffer::ComputePass);
+
+    cbD->recordingPass = QD3D12CommandBuffer::NoPass;
+
+    if (resourceUpdates)
+        enqueueResourceUpdates(cbD, resourceUpdates);
+}
+
+void QRhiD3D12::setComputePipeline(QRhiCommandBuffer *cb, QRhiComputePipeline *ps)
+{
+    QD3D12CommandBuffer *cbD = QRHI_RES(QD3D12CommandBuffer, cb);
+    Q_ASSERT(cbD->recordingPass == QD3D12CommandBuffer::ComputePass);
+    QD3D12ComputePipeline *psD = QRHI_RES(QD3D12ComputePipeline, ps);
+    const bool pipelineChanged = cbD->currentComputePipeline != psD || cbD->currentPipelineGeneration != psD->generation;
+
+    if (pipelineChanged) {
+        cbD->currentGraphicsPipeline = nullptr;
+        cbD->currentComputePipeline = psD;
+        cbD->currentPipelineGeneration = psD->generation;
+
+        if (QD3D12Pipeline *pipeline = pipelinePool.lookupRef(psD->handle)) {
+            Q_ASSERT(pipeline->type == QD3D12Pipeline::Compute);
+            cbD->cmdList->SetPipelineState(pipeline->pso);
+            if (QD3D12RootSignature *rs = rootSignaturePool.lookupRef(psD->rootSigHandle))
+                cbD->cmdList->SetComputeRootSignature(rs->rootSig);
+        }
+    }
+}
+
+void QRhiD3D12::dispatch(QRhiCommandBuffer *cb, int x, int y, int z)
+{
+    QD3D12CommandBuffer *cbD = QRHI_RES(QD3D12CommandBuffer, cb);
+    Q_ASSERT(cbD->recordingPass == QD3D12CommandBuffer::ComputePass);
+    cbD->cmdList->Dispatch(UINT(x), UINT(y), UINT(z));
+}
+
+bool QD3D12DescriptorHeap::create(ID3D12Device *device,
+                                  quint32 descriptorCount,
+                                  D3D12_DESCRIPTOR_HEAP_TYPE heapType,
+                                  D3D12_DESCRIPTOR_HEAP_FLAGS heapFlags)
+{
+    head = 0;
+    capacity = descriptorCount;
+    this->heapType = heapType;
+    this->heapFlags = heapFlags;
+
+    D3D12_DESCRIPTOR_HEAP_DESC heapDesc = {};
+    heapDesc.Type = heapType;
+    heapDesc.NumDescriptors = capacity;
+    heapDesc.Flags = D3D12_DESCRIPTOR_HEAP_FLAGS(heapFlags);
+
+    HRESULT hr = device->CreateDescriptorHeap(&heapDesc, __uuidof(ID3D12DescriptorHeap), reinterpret_cast<void **>(&heap));
+    if (FAILED(hr)) {
+        qWarning("Failed to create descriptor heap: %s", qPrintable(QSystemError::windowsComString(hr)));
+        heap = nullptr;
+        capacity = descriptorByteSize = 0;
+        return false;
+    }
+
+    descriptorByteSize = device->GetDescriptorHandleIncrementSize(heapType);
+    heapStart.cpuHandle = heap->GetCPUDescriptorHandleForHeapStart();
+    if (heapFlags & D3D12_DESCRIPTOR_HEAP_FLAG_SHADER_VISIBLE)
+        heapStart.gpuHandle = heap->GetGPUDescriptorHandleForHeapStart();
+
+    return true;
+}
+
+void QD3D12DescriptorHeap::createWithExisting(const QD3D12DescriptorHeap &other,
+                                              quint32 offsetInDescriptors,
+                                              quint32 descriptorCount)
+{
+    heap = nullptr;
+    head = 0;
+    capacity = descriptorCount;
+    heapType = other.heapType;
+    heapFlags = other.heapFlags;
+    descriptorByteSize = other.descriptorByteSize;
+    heapStart = incremented(other.heapStart, offsetInDescriptors);
+}
+
+void QD3D12DescriptorHeap::destroy()
+{
+    if (heap) {
+        heap->Release();
+        heap = nullptr;
+    }
+    capacity = 0;
+}
+
+void QD3D12DescriptorHeap::destroyWithDeferredRelease(QD3D12ReleaseQueue *releaseQueue)
+{
+    if (heap) {
+        releaseQueue->deferredReleaseDescriptorHeap(heap);
+        heap = nullptr;
+    }
+    capacity = 0;
+}
+
+QD3D12Descriptor QD3D12DescriptorHeap::get(quint32 count)
+{
+    Q_ASSERT(count > 0);
+    if (head + count > capacity) {
+        qWarning("Cannot get %u descriptors as that would exceed capacity %u", count, capacity);
+        return {};
+    }
+    head += count;
+    return at(head - count);
+}
+
+QD3D12Descriptor QD3D12DescriptorHeap::at(quint32 index) const
+{
+    const quint32 startOffset = index * descriptorByteSize;
+    QD3D12Descriptor result;
+    result.cpuHandle.ptr = heapStart.cpuHandle.ptr + startOffset;
+    if (heapStart.gpuHandle.ptr != 0)
+        result.gpuHandle.ptr = heapStart.gpuHandle.ptr + startOffset;
+    return result;
+}
+
+bool QD3D12CpuDescriptorPool::create(ID3D12Device *device, D3D12_DESCRIPTOR_HEAP_TYPE heapType, const char *debugName)
+{
+    QD3D12DescriptorHeap firstHeap;
+    if (!firstHeap.create(device, DESCRIPTORS_PER_HEAP, heapType, D3D12_DESCRIPTOR_HEAP_FLAG_NONE))
+        return false;
+    heaps.append(HeapWithMap::init(firstHeap, DESCRIPTORS_PER_HEAP));
+    descriptorByteSize = heaps[0].heap.descriptorByteSize;
+    this->device = device;
+    this->debugName = debugName;
+    return true;
+}
+
+void QD3D12CpuDescriptorPool::destroy()
+{
+#ifndef QT_NO_DEBUG
+    // debug builds: just do it always
+    static bool leakCheck = true;
+#else
+    // release builds: opt-in
+    static bool leakCheck = qEnvironmentVariableIntValue("QT_RHI_LEAK_CHECK");
+#endif
+    if (leakCheck) {
+        for (HeapWithMap &heap : heaps) {
+            const int leakedDescriptorCount = heap.map.count(true);
+            if (leakedDescriptorCount > 0) {
+                qWarning("QD3D12CpuDescriptorPool::destroy(): "
+                         "Heap %p for descriptor pool %p '%s' has %d unreleased descriptors",
+                         &heap.heap, this, debugName, leakedDescriptorCount);
+            }
+        }
+    }
+    for (HeapWithMap &heap : heaps)
+        heap.heap.destroy();
+    heaps.clear();
+}
+
+QD3D12Descriptor QD3D12CpuDescriptorPool::allocate(quint32 count)
+{
+    Q_ASSERT(count > 0 && count <= DESCRIPTORS_PER_HEAP);
+
+    HeapWithMap &last(heaps.last());
+    if (last.heap.head + count <= last.heap.capacity) {
+        quint32 firstIndex = last.heap.head;
+        for (quint32 i = 0; i < count; ++i)
+            last.map.setBit(firstIndex + i);
+        return last.heap.get(count);
+    }
+
+    for (HeapWithMap &heap : heaps) {
+        quint32 freeCount = 0;
+        for (quint32 i = 0; i < DESCRIPTORS_PER_HEAP; ++i) {
+            if (heap.map.testBit(i)) {
+                freeCount = 0;
+            } else {
+                freeCount += 1;
+                if (freeCount == count) {
+                    quint32 firstIndex = i - (freeCount - 1);
+                    for (quint32 j = 0; j < count; ++j) {
+                        heap.map.setBit(firstIndex + j);
+                        return heap.heap.at(firstIndex);
+                    }
+                }
+            }
+        }
+    }
+
+    QD3D12DescriptorHeap newHeap;
+    if (!newHeap.create(device, DESCRIPTORS_PER_HEAP, last.heap.heapType, last.heap.heapFlags))
+        return {};
+
+    heaps.append(HeapWithMap::init(newHeap, DESCRIPTORS_PER_HEAP));
+
+    for (quint32 i = 0; i < count; ++i)
+        heaps.last().map.setBit(i);
+
+    return heaps.last().heap.get(count);
+}
+
+void QD3D12CpuDescriptorPool::release(const QD3D12Descriptor &descriptor, quint32 count)
+{
+    Q_ASSERT(count > 0 && count <= DESCRIPTORS_PER_HEAP);
+    if (!descriptor.isValid())
+        return;
+
+    const SIZE_T addr = descriptor.cpuHandle.ptr;
+    for (HeapWithMap &heap : heaps) {
+        const SIZE_T begin = heap.heap.heapStart.cpuHandle.ptr;
+        const SIZE_T end = begin + heap.heap.descriptorByteSize * heap.heap.capacity;
+        if (addr >= begin && addr < end) {
+            quint32 firstIndex = (addr - begin) / heap.heap.descriptorByteSize;
+            for (quint32 i = 0; i < count; ++i)
+                heap.map.setBit(firstIndex + i, false);
+            return;
+        }
+    }
+
+    qWarning("QD3D12CpuDescriptorPool::release: Descriptor with address %llu is not in any heap",
+             quint64(descriptor.cpuHandle.ptr));
+}
+
+bool QD3D12StagingArea::create(QRhiD3D12 *rhi, quint32 capacity, D3D12_HEAP_TYPE heapType)
+{
+    Q_ASSERT(heapType == D3D12_HEAP_TYPE_UPLOAD || heapType == D3D12_HEAP_TYPE_READBACK);
+    D3D12_RESOURCE_DESC resourceDesc = {};
+    resourceDesc.Dimension = D3D12_RESOURCE_DIMENSION_BUFFER;
+    resourceDesc.Width = capacity;
+    resourceDesc.Height = 1;
+    resourceDesc.DepthOrArraySize = 1;
+    resourceDesc.MipLevels = 1;
+    resourceDesc.Format = DXGI_FORMAT_UNKNOWN;
+    resourceDesc.SampleDesc = { 1, 0 };
+    resourceDesc.Layout = D3D12_TEXTURE_LAYOUT_ROW_MAJOR;
+    resourceDesc.Flags = D3D12_RESOURCE_FLAG_NONE;
+    UINT state = heapType == D3D12_HEAP_TYPE_UPLOAD ? D3D12_RESOURCE_STATE_GENERIC_READ : D3D12_RESOURCE_STATE_COPY_DEST;
+    HRESULT hr = rhi->vma.createResource(heapType,
+                                         &resourceDesc,
+                                         D3D12_RESOURCE_STATES(state),
+                                         nullptr,
+                                         &allocation,
+                                         __uuidof(ID3D12Resource),
+                                         reinterpret_cast<void **>(&resource));
+    if (FAILED(hr)) {
+        qWarning("Failed to create buffer for staging area: %s",
+                 qPrintable(QSystemError::windowsComString(hr)));
+        return false;
+    }
+    void *p = nullptr;
+    hr = resource->Map(0, nullptr, &p);
+    if (FAILED(hr)) {
+        qWarning("Failed to map buffer for staging area: %s",
+                 qPrintable(QSystemError::windowsComString(hr)));
+        destroy();
+        return false;
+    }
+
+    mem.p = static_cast<quint8 *>(p);
+    mem.gpuAddr = resource->GetGPUVirtualAddress();
+    mem.buffer = resource;
+    mem.bufferOffset = 0;
+
+    this->capacity = capacity;
+    head = 0;
+
+    return true;
+}
+
+void QD3D12StagingArea::destroy()
+{
+    if (resource) {
+        resource->Release();
+        resource = nullptr;
+    }
+    if (allocation) {
+        allocation->Release();
+        allocation = nullptr;
+    }
+    mem = {};
+}
+
+void QD3D12StagingArea::destroyWithDeferredRelease(QD3D12ReleaseQueue *releaseQueue)
+{
+    if (resource)
+        releaseQueue->deferredReleaseResourceAndAllocation(resource, allocation);
+    mem = {};
+}
+
+QD3D12StagingArea::Allocation QD3D12StagingArea::get(quint32 byteSize)
+{
+    const quint32 allocSize = aligned(byteSize, ALIGNMENT);
+    if (head + allocSize > capacity) {
+        qWarning("Failed to allocate %u (%u) bytes from staging area of size %u with %u bytes left",
+                 allocSize, byteSize, capacity, remainingCapacity());
+        return {};
+    }
+    const quint32 offset = head;
+    head += allocSize;
+    return {
+        mem.p + offset,
+        mem.gpuAddr + offset,
+        mem.buffer,
+        offset
+    };
+}
+
+// Can be called inside and outside of begin-endFrame. Removes from the pool
+// and releases the underlying native resource only in the frames_in_flight'th
+// beginFrame() counted starting from the next endFrame().
+void QD3D12ReleaseQueue::deferredReleaseResource(const QD3D12ObjectHandle &handle)
+{
+    DeferredReleaseEntry e;
+    e.handle = handle;
+    queue.append(e);
+}
+
+void QD3D12ReleaseQueue::deferredReleaseResourceWithViews(const QD3D12ObjectHandle &handle,
+                                                          QD3D12CpuDescriptorPool *pool,
+                                                          const QD3D12Descriptor &viewsStart,
+                                                          int viewCount)
+{
+    DeferredReleaseEntry e;
+    e.type = DeferredReleaseEntry::Resource;
+    e.handle = handle;
+    e.poolForViews = pool;
+    e.viewsStart = viewsStart;
+    e.viewCount = viewCount;
+    queue.append(e);
+}
+
+void QD3D12ReleaseQueue::deferredReleasePipeline(const QD3D12ObjectHandle &handle)
+{
+    DeferredReleaseEntry e;
+    e.type = DeferredReleaseEntry::Pipeline;
+    e.handle = handle;
+    queue.append(e);
+}
+
+void QD3D12ReleaseQueue::deferredReleaseRootSignature(const QD3D12ObjectHandle &handle)
+{
+    DeferredReleaseEntry e;
+    e.type = DeferredReleaseEntry::RootSignature;
+    e.handle = handle;
+    queue.append(e);
+}
+
+void QD3D12ReleaseQueue::deferredReleaseCallback(std::function<void(void*)> callback, void *userData)
+{
+    DeferredReleaseEntry e;
+    e.type = DeferredReleaseEntry::Callback;
+    e.callback = callback;
+    e.callbackUserData = userData;
+    queue.append(e);
+}
+
+void QD3D12ReleaseQueue::deferredReleaseResourceAndAllocation(ID3D12Resource *resource,
+                                                              D3D12MA::Allocation *allocation)
+{
+    DeferredReleaseEntry e;
+    e.type = DeferredReleaseEntry::ResourceAndAllocation;
+    e.resourceAndAllocation = { resource, allocation };
+    queue.append(e);
+}
+
+void QD3D12ReleaseQueue::deferredReleaseDescriptorHeap(ID3D12DescriptorHeap *heap)
+{
+    DeferredReleaseEntry e;
+    e.type = DeferredReleaseEntry::DescriptorHeap;
+    e.descriptorHeap = heap;
+    queue.append(e);
+}
+
+void QD3D12ReleaseQueue::deferredReleaseViews(QD3D12CpuDescriptorPool *pool,
+                                              const QD3D12Descriptor &viewsStart,
+                                              int viewCount)
+{
+    DeferredReleaseEntry e;
+    e.type = DeferredReleaseEntry::Views;
+    e.poolForViews = pool;
+    e.viewsStart = viewsStart;
+    e.viewCount = viewCount;
+    queue.append(e);
+}
+
+void QD3D12ReleaseQueue::activatePendingDeferredReleaseRequests(int frameSlot)
+{
+    for (DeferredReleaseEntry &e : queue) {
+        if (!e.frameSlotToBeReleasedIn.has_value())
+            e.frameSlotToBeReleasedIn = frameSlot;
+    }
+}
+
+void QD3D12ReleaseQueue::executeDeferredReleases(int frameSlot, bool forced)
+{
+    for (int i = queue.count() - 1; i >= 0; --i) {
+        const DeferredReleaseEntry &e(queue[i]);
+        if (forced || (e.frameSlotToBeReleasedIn.has_value() && e.frameSlotToBeReleasedIn.value() == frameSlot)) {
+            switch (e.type) {
+            case DeferredReleaseEntry::Resource:
+                resourcePool->remove(e.handle);
+                if (e.poolForViews && e.viewsStart.isValid() && e.viewCount > 0)
+                    e.poolForViews->release(e.viewsStart, e.viewCount);
+                break;
+            case DeferredReleaseEntry::Pipeline:
+                pipelinePool->remove(e.handle);
+                break;
+            case DeferredReleaseEntry::RootSignature:
+                rootSignaturePool->remove(e.handle);
+                break;
+            case DeferredReleaseEntry::Callback:
+                e.callback(e.callbackUserData);
+                break;
+            case DeferredReleaseEntry::ResourceAndAllocation:
+                // order matters: resource first, then the allocation (which
+                // may be null)
+                e.resourceAndAllocation.first->Release();
+                if (e.resourceAndAllocation.second)
+                    e.resourceAndAllocation.second->Release();
+                break;
+            case DeferredReleaseEntry::DescriptorHeap:
+                e.descriptorHeap->Release();
+                break;
+            case DeferredReleaseEntry::Views:
+                e.poolForViews->release(e.viewsStart, e.viewCount);
+                break;
+            }
+            queue.removeAt(i);
+        }
+    }
+}
+
+void QD3D12ReleaseQueue::releaseAll()
+{
+    executeDeferredReleases(0, true);
+}
+
+void QD3D12ResourceBarrierGenerator::addTransitionBarrier(const QD3D12ObjectHandle &resourceHandle,
+                                                          D3D12_RESOURCE_STATES stateAfter)
+{
+    if (QD3D12Resource *res = resourcePool->lookupRef(resourceHandle)) {
+        if (stateAfter != res->state) {
+            transitionResourceBarriers.append({ resourceHandle, res->state, stateAfter });
+            res->state = stateAfter;
+        }
+    }
+}
+
+void QD3D12ResourceBarrierGenerator::enqueueBufferedTransitionBarriers(QD3D12CommandBuffer *cbD)
+{
+    QVarLengthArray<D3D12_RESOURCE_BARRIER, PREALLOC> barriers;
+    for (const TransitionResourceBarrier &trb : transitionResourceBarriers) {
+        if (QD3D12Resource *res = resourcePool->lookupRef(trb.resourceHandle)) {
+            D3D12_RESOURCE_BARRIER barrier = {};
+            barrier.Type = D3D12_RESOURCE_BARRIER_TYPE_TRANSITION;
+            barrier.Flags = D3D12_RESOURCE_BARRIER_FLAG_NONE;
+            barrier.Transition.pResource = res->resource;
+            barrier.Transition.Subresource = D3D12_RESOURCE_BARRIER_ALL_SUBRESOURCES;
+            barrier.Transition.StateBefore = trb.stateBefore;
+            barrier.Transition.StateAfter = trb.stateAfter;
+            barriers.append(barrier);
+        }
+    }
+    transitionResourceBarriers.clear();
+    if (!barriers.isEmpty())
+        cbD->cmdList->ResourceBarrier(barriers.count(), barriers.constData());
+}
+
+void QD3D12ResourceBarrierGenerator::enqueueSubresourceTransitionBarrier(QD3D12CommandBuffer *cbD,
+                                                                         const QD3D12ObjectHandle &resourceHandle,
+                                                                         UINT subresource,
+                                                                         D3D12_RESOURCE_STATES stateBefore,
+                                                                         D3D12_RESOURCE_STATES stateAfter)
+{
+    if (QD3D12Resource *res = resourcePool->lookupRef(resourceHandle)) {
+        D3D12_RESOURCE_BARRIER barrier = {};
+        barrier.Type = D3D12_RESOURCE_BARRIER_TYPE_TRANSITION;
+        barrier.Flags = D3D12_RESOURCE_BARRIER_FLAG_NONE;
+        barrier.Transition.pResource = res->resource;
+        barrier.Transition.Subresource = subresource;
+        barrier.Transition.StateBefore = stateBefore;
+        barrier.Transition.StateAfter = stateAfter;
+        cbD->cmdList->ResourceBarrier(1, &barrier);
+    }
+}
+
+void QD3D12ResourceBarrierGenerator::enqueueUavBarrier(QD3D12CommandBuffer *cbD,
+                                                       const QD3D12ObjectHandle &resourceHandle)
+{
+    if (QD3D12Resource *res = resourcePool->lookupRef(resourceHandle)) {
+        D3D12_RESOURCE_BARRIER barrier = {};
+        barrier.Type = D3D12_RESOURCE_BARRIER_TYPE_UAV;
+        barrier.Flags = D3D12_RESOURCE_BARRIER_FLAG_NONE;
+        barrier.UAV.pResource = res->resource;
+        cbD->cmdList->ResourceBarrier(1, &barrier);
+    }
+}
+
+void QD3D12ShaderBytecodeCache::insertWithCapacityLimit(const QRhiShaderStage &key, const Shader &s)
+{
+    if (data.count() >= QRhiD3D12::MAX_SHADER_CACHE_ENTRIES)
+        data.clear();
+    data.insert(key, s);
+}
+
+bool QD3D12ShaderVisibleDescriptorHeap::create(ID3D12Device *device,
+                                               D3D12_DESCRIPTOR_HEAP_TYPE type,
+                                               quint32 perFrameDescriptorCount)
+{
+    Q_ASSERT(type == D3D12_DESCRIPTOR_HEAP_TYPE_CBV_SRV_UAV || type == D3D12_DESCRIPTOR_HEAP_TYPE_SAMPLER);
+
+    quint32 size = perFrameDescriptorCount * QD3D12_FRAMES_IN_FLIGHT;
+
+    // https://learn.microsoft.com/en-us/windows/win32/direct3d12/hardware-support
+    const quint32 CBV_SRV_UAV_MAX = 1000000;
+    const quint32 SAMPLER_MAX = 2048;
+    if (type == D3D12_DESCRIPTOR_HEAP_TYPE_CBV_SRV_UAV)
+        size = qMin(size, CBV_SRV_UAV_MAX);
+    else if (type == D3D12_DESCRIPTOR_HEAP_TYPE_SAMPLER)
+        size = qMin(size, SAMPLER_MAX);
+
+    if (!heap.create(device, size, type, D3D12_DESCRIPTOR_HEAP_FLAG_SHADER_VISIBLE)) {
+        qWarning("Failed to create shader-visible descriptor heap of size %u", size);
+        return false;
+    }
+
+    perFrameDescriptorCount = size / QD3D12_FRAMES_IN_FLIGHT;
+    quint32 currentOffsetInDescriptors = 0;
+    for (int i = 0; i < QD3D12_FRAMES_IN_FLIGHT; ++i) {
+        perFrameHeapSlice[i].createWithExisting(heap, currentOffsetInDescriptors, perFrameDescriptorCount);
+        currentOffsetInDescriptors += perFrameDescriptorCount;
+    }
+
+    return true;
+}
+
+void QD3D12ShaderVisibleDescriptorHeap::destroy()
+{
+    heap.destroy();
+}
+
+void QD3D12ShaderVisibleDescriptorHeap::destroyWithDeferredRelease(QD3D12ReleaseQueue *releaseQueue)
+{
+    heap.destroyWithDeferredRelease(releaseQueue);
+}
+
+static inline QPair<int, int> mapBinding(int binding, const QShader::NativeResourceBindingMap &map)
+{
+    if (map.isEmpty())
+        return { binding, binding }; // assume 1:1 mapping
+
+    auto it = map.constFind(binding);
+    if (it != map.cend())
+        return *it;
+
+    // Hitting this path is normal too. It is not given that the resource is
+    // present in the shaders for all the stages specified by the visibility
+    // mask in the QRhiShaderResourceBinding.
+    return { -1, -1 };
+}
+
+void QD3D12ShaderResourceVisitor::visit()
+{
+    for (int bindingIdx = 0, bindingCount = srb->sortedBindings.count(); bindingIdx != bindingCount; ++bindingIdx) {
+        const QRhiShaderResourceBinding &b(srb->sortedBindings[bindingIdx]);
+        const QRhiShaderResourceBinding::Data *bd = QRhiImplementation::shaderResourceBindingData(b);
+
+        for (int stageIdx = 0; stageIdx < stageCount; ++stageIdx) {
+            const QD3D12ShaderStageData *sd = &stageData[stageIdx];
+            if (!sd->valid)
+                continue;
+
+            if (!bd->stage.testFlag(qd3d12_stageToSrb(sd->stage)))
+                continue;
+
+            switch (bd->type) {
+            case QRhiShaderResourceBinding::UniformBuffer:
+            {
+                const int shaderRegister = mapBinding(bd->binding, sd->nativeResourceBindingMap).first;
+                if (shaderRegister >= 0 && uniformBuffer)
+                    uniformBuffer(sd->stage, bd->u.ubuf, shaderRegister, bd->binding);
+            }
+                break;
+            case QRhiShaderResourceBinding::SampledTexture:
+            {
+                Q_ASSERT(bd->u.stex.count > 0);
+                const int textureBaseShaderRegister = mapBinding(bd->binding, sd->nativeResourceBindingMap).first;
+                const int samplerBaseShaderRegister = mapBinding(bd->binding, sd->nativeResourceBindingMap).second;
+                for (int i = 0; i < bd->u.stex.count; ++i) {
+                    if (textureBaseShaderRegister >= 0 && texture)
+                        texture(sd->stage, bd->u.stex.texSamplers[i], textureBaseShaderRegister + i);
+                    if (samplerBaseShaderRegister >= 0 && sampler)
+                        sampler(sd->stage, bd->u.stex.texSamplers[i], samplerBaseShaderRegister + i);
+                }
+            }
+                break;
+            case QRhiShaderResourceBinding::Texture:
+            {
+                Q_ASSERT(bd->u.stex.count > 0);
+                const int baseShaderRegister = mapBinding(bd->binding, sd->nativeResourceBindingMap).first;
+                if (baseShaderRegister >= 0 && texture) {
+                    for (int i = 0; i < bd->u.stex.count; ++i)
+                        texture(sd->stage, bd->u.stex.texSamplers[i], baseShaderRegister + i);
+                }
+            }
+                break;
+            case QRhiShaderResourceBinding::Sampler:
+            {
+                Q_ASSERT(bd->u.stex.count > 0);
+                const int baseShaderRegister = mapBinding(bd->binding, sd->nativeResourceBindingMap).first;
+                if (baseShaderRegister >= 0 && sampler) {
+                    for (int i = 0; i < bd->u.stex.count; ++i)
+                        sampler(sd->stage, bd->u.stex.texSamplers[i], baseShaderRegister + i);
+                }
+            }
+                break;
+            case QRhiShaderResourceBinding::ImageLoad:
+            {
+                const int shaderRegister = mapBinding(bd->binding, sd->nativeResourceBindingMap).first;
+                if (shaderRegister >= 0 && storageImage)
+                    storageImage(sd->stage, bd->u.simage, Load, shaderRegister);
+            }
+                break;
+            case QRhiShaderResourceBinding::ImageStore:
+            {
+                const int shaderRegister = mapBinding(bd->binding, sd->nativeResourceBindingMap).first;
+                if (shaderRegister >= 0 && storageImage)
+                    storageImage(sd->stage, bd->u.simage, Store, shaderRegister);
+            }
+                break;
+            case QRhiShaderResourceBinding::ImageLoadStore:
+            {
+                const int shaderRegister = mapBinding(bd->binding, sd->nativeResourceBindingMap).first;
+                if (shaderRegister >= 0 && storageImage)
+                    storageImage(sd->stage, bd->u.simage, LoadStore, shaderRegister);
+            }
+                break;
+            case QRhiShaderResourceBinding::BufferLoad:
+            {
+                const int shaderRegister = mapBinding(bd->binding, sd->nativeResourceBindingMap).first;
+                if (shaderRegister >= 0 && storageBuffer)
+                    storageBuffer(sd->stage, bd->u.sbuf, Load, shaderRegister);
+            }
+                break;
+            case QRhiShaderResourceBinding::BufferStore:
+            {
+                const int shaderRegister = mapBinding(bd->binding, sd->nativeResourceBindingMap).first;
+                if (shaderRegister >= 0 && storageBuffer)
+                    storageBuffer(sd->stage, bd->u.sbuf, Store, shaderRegister);
+            }
+                break;
+            case QRhiShaderResourceBinding::BufferLoadStore:
+            {
+                const int shaderRegister = mapBinding(bd->binding, sd->nativeResourceBindingMap).first;
+                if (shaderRegister >= 0 && storageBuffer)
+                    storageBuffer(sd->stage, bd->u.sbuf, LoadStore, shaderRegister);
+            }
+                break;
+            }
+        }
+    }
+}
+
+bool QD3D12SamplerManager::create(ID3D12Device *device)
+{
+    // This does not need to be per-frame slot, just grab space for MAX_SAMPLERS samplers.
+    if (!shaderVisibleSamplerHeap.create(device,
+                                         D3D12_DESCRIPTOR_HEAP_TYPE_SAMPLER,
+                                         MAX_SAMPLERS / QD3D12_FRAMES_IN_FLIGHT))
+    {
+        qWarning("Could not create shader-visible SAMPLER heap");
+        return false;
+    }
+
+    this->device = device;
+    return true;
+}
+
+void QD3D12SamplerManager::destroy()
+{
+    if (device) {
+        shaderVisibleSamplerHeap.destroy();
+        device = nullptr;
+    }
+}
+
+QD3D12Descriptor QD3D12SamplerManager::getShaderVisibleDescriptor(const D3D12_SAMPLER_DESC &desc)
+{
+    auto it = gpuMap.constFind({desc});
+    if (it != gpuMap.cend())
+        return *it;
+
+    QD3D12Descriptor descriptor = shaderVisibleSamplerHeap.heap.get(1);
+    if (descriptor.isValid()) {
+        device->CreateSampler(&desc, descriptor.cpuHandle);
+        gpuMap.insert({desc}, descriptor);
+    } else {
+        qWarning("Out of shader-visible SAMPLER descriptor heap space,"
+                 " this should not happen, maximum number of unique samplers is %u",
+                 shaderVisibleSamplerHeap.heap.capacity);
+    }
+
+    return descriptor;
+}
+
+typedef HRESULT(WINAPI* D3D12SerializeVersionedRootSignatureFunc) (const D3D12_VERSIONED_ROOT_SIGNATURE_DESC *, ID3DBlob **, ID3DBlob **);
+D3D12SerializeVersionedRootSignatureFunc myD3D12SerializeVersionedRootSignature = nullptr;
+
+bool QD3D12MipmapGenerator::create(QRhiD3D12 *rhiD)
+{
+    this->rhiD = rhiD;
+
+    D3D12_ROOT_PARAMETER1 rootParams[3] = {};
+    D3D12_DESCRIPTOR_RANGE1 descriptorRanges[2] = {};
+
+    // b0
+    rootParams[0].ParameterType = D3D12_ROOT_PARAMETER_TYPE_CBV;
+    rootParams[0].ShaderVisibility = D3D12_SHADER_VISIBILITY_ALL;
+
+    // t0
+    descriptorRanges[0].RangeType = D3D12_DESCRIPTOR_RANGE_TYPE_SRV;
+    descriptorRanges[0].NumDescriptors = 1;
+    descriptorRanges[0].Flags = D3D12_DESCRIPTOR_RANGE_FLAG_DATA_VOLATILE;
+    rootParams[1].ParameterType = D3D12_ROOT_PARAMETER_TYPE_DESCRIPTOR_TABLE;
+    rootParams[1].ShaderVisibility = D3D12_SHADER_VISIBILITY_ALL;
+    rootParams[1].DescriptorTable.NumDescriptorRanges = 1;
+    rootParams[1].DescriptorTable.pDescriptorRanges = &descriptorRanges[0];
+
+    // u0..3
+    descriptorRanges[1].RangeType = D3D12_DESCRIPTOR_RANGE_TYPE_UAV;
+    descriptorRanges[1].NumDescriptors = 4;
+    rootParams[2].ParameterType = D3D12_ROOT_PARAMETER_TYPE_DESCRIPTOR_TABLE;
+    rootParams[2].ShaderVisibility = D3D12_SHADER_VISIBILITY_ALL;
+    rootParams[2].DescriptorTable.NumDescriptorRanges = 1;
+    rootParams[2].DescriptorTable.pDescriptorRanges = &descriptorRanges[1];
+
+    // s0
+    D3D12_STATIC_SAMPLER_DESC samplerDesc = {};
+    samplerDesc.Filter = D3D12_FILTER_MIN_MAG_MIP_LINEAR;
+    samplerDesc.AddressU = D3D12_TEXTURE_ADDRESS_MODE_CLAMP;
+    samplerDesc.AddressV = D3D12_TEXTURE_ADDRESS_MODE_CLAMP;
+    samplerDesc.AddressW = D3D12_TEXTURE_ADDRESS_MODE_CLAMP;
+    samplerDesc.MaxLOD = 10000.0f;
+    samplerDesc.ShaderVisibility = D3D12_SHADER_VISIBILITY_ALL;
+
+    D3D12_VERSIONED_ROOT_SIGNATURE_DESC rsDesc = {};
+    rsDesc.Version = D3D_ROOT_SIGNATURE_VERSION_1_1;
+    rsDesc.Desc_1_1.NumParameters = 3;
+    rsDesc.Desc_1_1.pParameters = rootParams;
+    rsDesc.Desc_1_1.NumStaticSamplers = 1;
+    rsDesc.Desc_1_1.pStaticSamplers = &samplerDesc;
+
+    if (!myD3D12SerializeVersionedRootSignature)
+        myD3D12SerializeVersionedRootSignature =
+        (D3D12SerializeVersionedRootSignatureFunc)::GetProcAddress(::GetModuleHandle(L"D3d12"), "D3D12SerializeVersionedRootSignature");
+
+    if (!myD3D12SerializeVersionedRootSignature)
+        return false;
+
+    ID3DBlob *signature = nullptr;
+    HRESULT hr = myD3D12SerializeVersionedRootSignature(&rsDesc, &signature, nullptr);
+    if (FAILED(hr)) {
+        qWarning("Failed to serialize root signature: %s", qPrintable(QSystemError::windowsComString(hr)));
+        return false;
+    }
+    ID3D12RootSignature *rootSig = nullptr;
+    hr = rhiD->dev->CreateRootSignature(0,
+                                        signature->GetBufferPointer(),
+                                        signature->GetBufferSize(),
+                                        __uuidof(ID3D12RootSignature),
+                                        reinterpret_cast<void **>(&rootSig));
+    signature->Release();
+    if (FAILED(hr)) {
+        qWarning("Failed to create root signature: %s",
+                 qPrintable(QSystemError::windowsComString(hr)));
+        return false;
+    }
+
+    rootSigHandle = QD3D12RootSignature::addToPool(&rhiD->rootSignaturePool, rootSig);
+
+    D3D12_COMPUTE_PIPELINE_STATE_DESC psoDesc = {};
+    psoDesc.pRootSignature = rootSig;
+    psoDesc.CS.pShaderBytecode = g_csMipmap;
+    psoDesc.CS.BytecodeLength = sizeof(g_csMipmap);
+    ID3D12PipelineState *pso = nullptr;
+    hr = rhiD->dev->CreateComputePipelineState(&psoDesc,
+                                               __uuidof(ID3D12PipelineState),
+                                               reinterpret_cast<void **>(&pso));
+    if (FAILED(hr)) {
+        qWarning("Failed to create compute pipeline state: %s",
+                 qPrintable(QSystemError::windowsComString(hr)));
+        rhiD->rootSignaturePool.remove(rootSigHandle);
+        rootSigHandle = {};
+        return false;
+    }
+
+    pipelineHandle = QD3D12Pipeline::addToPool(&rhiD->pipelinePool, QD3D12Pipeline::Compute, pso);
+
+    return true;
+}
+
+void QD3D12MipmapGenerator::destroy()
+{
+    rhiD->pipelinePool.remove(pipelineHandle);
+    pipelineHandle = {};
+    rhiD->rootSignaturePool.remove(rootSigHandle);
+    rootSigHandle = {};
+}
+
+void QD3D12MipmapGenerator::generate(QD3D12CommandBuffer *cbD, const QD3D12ObjectHandle &textureHandle)
+{
+    QD3D12Pipeline *pipeline = rhiD->pipelinePool.lookupRef(pipelineHandle);
+    if (!pipeline)
+        return;
+    QD3D12RootSignature *rootSig = rhiD->rootSignaturePool.lookupRef(rootSigHandle);
+    if (!rootSig)
+        return;
+    QD3D12Resource *res = rhiD->resourcePool.lookupRef(textureHandle);
+    if (!res)
+        return;
+
+    const quint32 mipLevelCount = res->desc.MipLevels;
+    if (mipLevelCount < 2)
+        return;
+
+    if (res->desc.SampleDesc.Count > 1) {
+        qWarning("Cannot generate mipmaps for MSAA texture");
+        return;
+    }
+
+    const bool is1D = res->desc.Dimension == D3D12_RESOURCE_DIMENSION_TEXTURE1D;
+    if (is1D) {
+        qWarning("Cannot generate mipmaps for 1D texture");
+        return;
+    }
+
+    const bool is3D = res->desc.Dimension == D3D12_RESOURCE_DIMENSION_TEXTURE3D;
+    const bool isCubeOrArray = res->desc.Dimension == D3D12_RESOURCE_DIMENSION_TEXTURE2D
+            && res->desc.DepthOrArraySize > 1;
+    const quint32 layerCount = isCubeOrArray ? res->desc.DepthOrArraySize : 1;
+
+    if (is3D) {
+        // ### needs its own shader and maybe a different solution
+        qWarning("3D texture mipmapping is not implemented for D3D12 atm");
+        return;
+    }
+
+    rhiD->barrierGen.addTransitionBarrier(textureHandle, D3D12_RESOURCE_STATE_UNORDERED_ACCESS);
+    rhiD->barrierGen.enqueueBufferedTransitionBarriers(cbD);
+
+    cbD->cmdList->SetPipelineState(pipeline->pso);
+    cbD->cmdList->SetComputeRootSignature(rootSig->rootSig);
+
+    const quint32 descriptorByteSize = rhiD->shaderVisibleCbvSrvUavHeap.perFrameHeapSlice[rhiD->currentFrameSlot].descriptorByteSize;
+
+    struct CBufData {
+        quint32 srcMipLevel;
+        quint32 numMipLevels;
+        float texelWidth;
+        float texelHeight;
+    };
+
+    const quint32 allocSize = QD3D12StagingArea::allocSizeForArray(sizeof(CBufData), mipLevelCount * layerCount);
+    std::optional<QD3D12StagingArea> ownStagingArea;
+    if (rhiD->smallStagingAreas[rhiD->currentFrameSlot].remainingCapacity() < allocSize) {
+        ownStagingArea = QD3D12StagingArea();
+        if (!ownStagingArea->create(rhiD, allocSize, D3D12_HEAP_TYPE_UPLOAD)) {
+            qWarning("Could not create staging area for mipmap generation");
+            return;
+        }
+    }
+    QD3D12StagingArea *workArea = ownStagingArea.has_value()
+            ? &ownStagingArea.value()
+            : &rhiD->smallStagingAreas[rhiD->currentFrameSlot];
+
+    bool gotNewHeap = false;
+    if (!rhiD->ensureShaderVisibleDescriptorHeapCapacity(&rhiD->shaderVisibleCbvSrvUavHeap,
+                                                         D3D12_DESCRIPTOR_HEAP_TYPE_CBV_SRV_UAV,
+                                                         rhiD->currentFrameSlot,
+                                                         (1 + 4) * mipLevelCount * layerCount,
+                                                         &gotNewHeap))
+    {
+        qWarning("Could not ensure enough space in descriptor heap for mipmap generation");
+        return;
+    }
+    if (gotNewHeap)
+        rhiD->bindShaderVisibleHeaps(cbD);
+
+    for (quint32 layer = 0; layer < layerCount; ++layer) {
+        for (quint32 level = 0; level < mipLevelCount ;) {
+            UINT subresource = calcSubresource(level, layer, res->desc.MipLevels);
+            rhiD->barrierGen.enqueueSubresourceTransitionBarrier(cbD, textureHandle, subresource,
+                                                                 D3D12_RESOURCE_STATE_UNORDERED_ACCESS,
+                                                                 D3D12_RESOURCE_STATE_NON_PIXEL_SHADER_RESOURCE);
+
+            quint32 levelPlusOneMipWidth = res->desc.Width >> (level + 1);
+            quint32 levelPlusOneMipHeight = res->desc.Height >> (level + 1);
+            const quint32 dw = levelPlusOneMipWidth == 1 ? levelPlusOneMipHeight : levelPlusOneMipWidth;
+            const quint32 dh = levelPlusOneMipHeight == 1 ? levelPlusOneMipWidth : levelPlusOneMipHeight;
+            // number of times the size can be halved while still resulting in an even dimension
+            const quint32 additionalMips = qCountTrailingZeroBits(dw | dh);
+            const quint32 numGenMips = qMin(1u + qMin(3u, additionalMips), res->desc.MipLevels - level);
+            levelPlusOneMipWidth = qMax(1u, levelPlusOneMipWidth);
+            levelPlusOneMipHeight = qMax(1u, levelPlusOneMipHeight);
+
+            CBufData cbufData = {
+                level,
+                numGenMips,
+                1.0f / float(levelPlusOneMipWidth),
+                1.0f / float(levelPlusOneMipHeight)
+            };
+
+            QD3D12StagingArea::Allocation cbuf = workArea->get(sizeof(cbufData));
+            memcpy(cbuf.p, &cbufData, sizeof(cbufData));
+            cbD->cmdList->SetComputeRootConstantBufferView(0, cbuf.gpuAddr);
+
+            QD3D12Descriptor srv = rhiD->shaderVisibleCbvSrvUavHeap.perFrameHeapSlice[rhiD->currentFrameSlot].get(1);
+            D3D12_SHADER_RESOURCE_VIEW_DESC srvDesc = {};
+            srvDesc.Format = res->desc.Format;
+            srvDesc.Shader4ComponentMapping = D3D12_DEFAULT_SHADER_4_COMPONENT_MAPPING;
+            if (isCubeOrArray) {
+                srvDesc.ViewDimension = D3D12_SRV_DIMENSION_TEXTURE2DARRAY;
+                srvDesc.Texture2DArray.MostDetailedMip = level;
+                srvDesc.Texture2DArray.MipLevels = 1;
+                srvDesc.Texture2DArray.FirstArraySlice = layer;
+                srvDesc.Texture2DArray.ArraySize = 1;
+            } else if (is3D) {
+                srvDesc.ViewDimension = D3D12_SRV_DIMENSION_TEXTURE3D;
+                srvDesc.Texture3D.MostDetailedMip = level;
+                srvDesc.Texture3D.MipLevels = 1;
+            } else {
+                srvDesc.ViewDimension = D3D12_SRV_DIMENSION_TEXTURE2D;
+                srvDesc.Texture2D.MostDetailedMip = level;
+                srvDesc.Texture2D.MipLevels = 1;
+            }
+            rhiD->dev->CreateShaderResourceView(res->resource, &srvDesc, srv.cpuHandle);
+            cbD->cmdList->SetComputeRootDescriptorTable(1, srv.gpuHandle);
+
+            QD3D12Descriptor uavStart = rhiD->shaderVisibleCbvSrvUavHeap.perFrameHeapSlice[rhiD->currentFrameSlot].get(4);
+            D3D12_CPU_DESCRIPTOR_HANDLE uavCpuHandle = uavStart.cpuHandle;
+            // if level is N, then need UAVs for levels N+1, ..., N+4
+            for (quint32 uavIdx = 0; uavIdx < 4; ++uavIdx) {
+                const quint32 uavMipLevel = qMin(level + 1u + uavIdx, res->desc.MipLevels - 1u);
+                D3D12_UNORDERED_ACCESS_VIEW_DESC uavDesc = {};
+                uavDesc.Format = res->desc.Format;
+                if (isCubeOrArray) {
+                    uavDesc.ViewDimension = D3D12_UAV_DIMENSION_TEXTURE2DARRAY;
+                    uavDesc.Texture2DArray.MipSlice = uavMipLevel;
+                    uavDesc.Texture2DArray.FirstArraySlice = layer;
+                    uavDesc.Texture2DArray.ArraySize = 1;
+                } else if (is3D) {
+                    uavDesc.ViewDimension = D3D12_UAV_DIMENSION_TEXTURE3D;
+                    uavDesc.Texture3D.MipSlice = uavMipLevel;
+                    uavDesc.Texture3D.FirstWSlice = 0; // depth etc. not implemented yet
+                    uavDesc.Texture3D.WSize = 1;
+                } else {
+                    uavDesc.ViewDimension = D3D12_UAV_DIMENSION_TEXTURE2D;
+                    uavDesc.Texture2D.MipSlice = uavMipLevel;
+                }
+                rhiD->dev->CreateUnorderedAccessView(res->resource, nullptr, &uavDesc, uavCpuHandle);
+                uavCpuHandle.ptr += descriptorByteSize;
+            }
+            cbD->cmdList->SetComputeRootDescriptorTable(2, uavStart.gpuHandle);
+
+            cbD->cmdList->Dispatch(levelPlusOneMipWidth, levelPlusOneMipHeight, 1);
+
+            rhiD->barrierGen.enqueueUavBarrier(cbD, textureHandle);
+            rhiD->barrierGen.enqueueSubresourceTransitionBarrier(cbD, textureHandle, subresource,
+                                                                 D3D12_RESOURCE_STATE_NON_PIXEL_SHADER_RESOURCE,
+                                                                 D3D12_RESOURCE_STATE_UNORDERED_ACCESS);
+
+            level += numGenMips;
+        }
+    }
+
+    if (ownStagingArea.has_value())
+        ownStagingArea->destroyWithDeferredRelease(&rhiD->releaseQueue);
+}
+
+bool QD3D12MemoryAllocator::create(ID3D12Device *device, IDXGIAdapter1 *adapter)
+{
+    this->device = device;
+
+    // We can function with and without D3D12MA: CreateCommittedResource is
+    // just fine for our purposes and not any complicated API-wise; the memory
+    // allocator is interesting for efficiency mainly since it can suballocate
+    // instead of making everything a committed resource allocation.
+
+    static bool disableMA = qEnvironmentVariableIntValue("QT_D3D_NO_SUBALLOC");
+    if (disableMA)
+        return true;
+
+    DXGI_ADAPTER_DESC1 desc;
+    adapter->GetDesc1(&desc);
+    if (desc.Flags & DXGI_ADAPTER_FLAG_SOFTWARE)
+        return true;
+
+    D3D12MA::ALLOCATOR_DESC allocatorDesc = {};
+    allocatorDesc.pDevice = device;
+    allocatorDesc.pAdapter = adapter;
+    // A QRhi is supposed to be used from one single thread only. Disable
+    // the allocator's own mutexes. This may give a performance boost.
+    allocatorDesc.Flags = D3D12MA::ALLOCATOR_FLAG_SINGLETHREADED;
+    HRESULT hr = D3D12MA::CreateAllocator(&allocatorDesc, &allocator);
+    if (FAILED(hr)) {
+        qWarning("Failed to initialize D3D12 Memory Allocator: %s",
+                 qPrintable(QSystemError::windowsComString(hr)));
+        return false;
+    }
+    return true;
+}
+
+void QD3D12MemoryAllocator::destroy()
+{
+    if (allocator) {
+        allocator->Release();
+        allocator = nullptr;
+    }
+}
+
+HRESULT QD3D12MemoryAllocator::createResource(D3D12_HEAP_TYPE heapType,
+                                              const D3D12_RESOURCE_DESC *resourceDesc,
+                                              D3D12_RESOURCE_STATES initialState,
+                                              const D3D12_CLEAR_VALUE *optimizedClearValue,
+                                              D3D12MA::Allocation **maybeAllocation,
+                                              REFIID riidResource,
+                                              void **ppvResource)
+{
+    if (allocator) {
+        D3D12MA::ALLOCATION_DESC allocDesc = {};
+        allocDesc.HeapType = heapType;
+        return allocator->CreateResource(&allocDesc,
+                                         resourceDesc,
+                                         initialState,
+                                         optimizedClearValue,
+                                         maybeAllocation,
+                                         riidResource,
+                                         ppvResource);
+    } else {
+        *maybeAllocation = nullptr;
+        D3D12_HEAP_PROPERTIES heapProps = {};
+        heapProps.Type = heapType;
+        return device->CreateCommittedResource(&heapProps,
+                                               D3D12_HEAP_FLAG_NONE,
+                                               resourceDesc,
+                                               initialState,
+                                               optimizedClearValue,
+                                               riidResource,
+                                               ppvResource);
+    }
+}
+
+void QD3D12MemoryAllocator::getBudget(D3D12MA::Budget *localBudget, D3D12MA::Budget *nonLocalBudget)
+{
+    if (allocator) {
+        allocator->GetBudget(localBudget, nonLocalBudget);
+    } else {
+        *localBudget = {};
+        *nonLocalBudget = {};
+    }
+}
+
+void QRhiD3D12::waitGpu()
+{
+    fullFenceCounter += 1u;
+    if (SUCCEEDED(cmdQueue->Signal(fullFence, fullFenceCounter))) {
+        if (SUCCEEDED(fullFence->SetEventOnCompletion(fullFenceCounter, fullFenceEvent)))
+            WaitForSingleObject(fullFenceEvent, INFINITE);
+    }
+}
+
+DXGI_SAMPLE_DESC QRhiD3D12::effectiveSampleCount(int sampleCount, DXGI_FORMAT format) const
+{
+    DXGI_SAMPLE_DESC desc;
+    desc.Count = 1;
+    desc.Quality = 0;
+
+    // Stay compatible with QSurfaceFormat and friends where samples == 0 means the same as 1.
+    int s = qBound(1, sampleCount, 64);
+
+    if (!supportedSampleCounts().contains(s)) {
+        qWarning("Attempted to set unsupported sample count %d", sampleCount);
+        return desc;
+    }
+
+    if (s > 1) {
+        D3D12_FEATURE_DATA_MULTISAMPLE_QUALITY_LEVELS msaaInfo = {};
+        msaaInfo.Format = format;
+        msaaInfo.SampleCount = s;
+        if (SUCCEEDED(dev->CheckFeatureSupport(D3D12_FEATURE_MULTISAMPLE_QUALITY_LEVELS, &msaaInfo, sizeof(msaaInfo)))) {
+            if (msaaInfo.NumQualityLevels > 0) {
+                desc.Count = UINT(s);
+                desc.Quality = msaaInfo.NumQualityLevels - 1;
+            } else {
+                qWarning("No quality levels for multisampling with sample count %d", s);
+            }
+        }
+    }
+
+    return desc;
+}
+
+bool QRhiD3D12::startCommandListForCurrentFrameSlot(ID3D12GraphicsCommandList **cmdList)
+{
+    ID3D12CommandAllocator *cmdAlloc = cmdAllocators[currentFrameSlot];
+    if (!*cmdList) {
+        HRESULT hr = dev->CreateCommandList(0,
+                                            D3D12_COMMAND_LIST_TYPE_DIRECT,
+                                            cmdAlloc,
+                                            nullptr,
+                                            __uuidof(ID3D12GraphicsCommandList),
+                                            reinterpret_cast<void **>(cmdList));
+        if (FAILED(hr)) {
+            qWarning("Failed to create command list: %s", qPrintable(QSystemError::windowsComString(hr)));
+            return false;
+        }
+    } else {
+        HRESULT hr = (*cmdList)->Reset(cmdAlloc, nullptr);
+        if (FAILED(hr)) {
+            qWarning("Failed to reset command list: %s", qPrintable(QSystemError::windowsComString(hr)));
+            return false;
+        }
+    }
+    return true;
+}
+
+static inline QRhiTexture::Format swapchainReadbackTextureFormat(DXGI_FORMAT format, QRhiTexture::Flags *flags)
+{
+    switch (format) {
+    case DXGI_FORMAT_R8G8B8A8_UNORM:
+        return QRhiTexture::RGBA8;
+    case DXGI_FORMAT_R8G8B8A8_UNORM_SRGB:
+        if (flags)
+            (*flags) |= QRhiTexture::sRGB;
+        return QRhiTexture::RGBA8;
+    case DXGI_FORMAT_B8G8R8A8_UNORM:
+        return QRhiTexture::BGRA8;
+    case DXGI_FORMAT_B8G8R8A8_UNORM_SRGB:
+        if (flags)
+            (*flags) |= QRhiTexture::sRGB;
+        return QRhiTexture::BGRA8;
+    case DXGI_FORMAT_R16G16B16A16_FLOAT:
+        return QRhiTexture::RGBA16F;
+    case DXGI_FORMAT_R32G32B32A32_FLOAT:
+        return QRhiTexture::RGBA32F;
+    case DXGI_FORMAT_R10G10B10A2_UNORM:
+        return QRhiTexture::RGB10A2;
+    default:
+        qWarning("DXGI_FORMAT %d cannot be read back", format);
+        break;
+    }
+    return QRhiTexture::UnknownFormat;
+}
+
+void QRhiD3D12::enqueueResourceUpdates(QD3D12CommandBuffer *cbD, QRhiResourceUpdateBatch *resourceUpdates)
+{
+    QRhiResourceUpdateBatchPrivate *ud = QRhiResourceUpdateBatchPrivate::get(resourceUpdates);
+
+    for (int opIdx = 0; opIdx < ud->activeBufferOpCount; ++opIdx) {
+        const QRhiResourceUpdateBatchPrivate::BufferOp &u(ud->bufferOps[opIdx]);
+        if (u.type == QRhiResourceUpdateBatchPrivate::BufferOp::DynamicUpdate) {
+            QD3D12Buffer *bufD = QRHI_RES(QD3D12Buffer, u.buf);
+            Q_ASSERT(bufD->m_type == QRhiBuffer::Dynamic);
+            for (int i = 0; i < QD3D12_FRAMES_IN_FLIGHT; ++i) {
+                if (u.offset == 0 && u.data.size() == bufD->m_size)
+                    bufD->pendingHostWrites[i].clear();
+                bufD->pendingHostWrites[i].append({ u.offset, u.data });
+            }
+        } else if (u.type == QRhiResourceUpdateBatchPrivate::BufferOp::StaticUpload) {
+            QD3D12Buffer *bufD = QRHI_RES(QD3D12Buffer, u.buf);
+            Q_ASSERT(bufD->m_type != QRhiBuffer::Dynamic);
+            Q_ASSERT(u.offset + u.data.size() <= bufD->m_size);
+
+            // The general approach to staging upload data is to first try
+            // using the per-frame "small" staging area, which is a very simple
+            // linear allocator; if that's not big enough then create a
+            // dedicated StagingArea and then deferred-release it to make sure
+            // if stays alive while the frame is possibly still in flight.
+
+            QD3D12StagingArea::Allocation stagingAlloc;
+            const quint32 allocSize = QD3D12StagingArea::allocSizeForArray(bufD->m_size, 1);
+            if (smallStagingAreas[currentFrameSlot].remainingCapacity() >= allocSize)
+                stagingAlloc = smallStagingAreas[currentFrameSlot].get(bufD->m_size);
+
+            std::optional<QD3D12StagingArea> ownStagingArea;
+            if (!stagingAlloc.isValid()) {
+                ownStagingArea = QD3D12StagingArea();
+                if (!ownStagingArea->create(this, allocSize, D3D12_HEAP_TYPE_UPLOAD))
+                    continue;
+                stagingAlloc = ownStagingArea->get(allocSize);
+                if (!stagingAlloc.isValid()) {
+                    ownStagingArea->destroy();
+                    continue;
+                }
+            }
+
+            memcpy(stagingAlloc.p + u.offset, u.data.constData(), u.data.size());
+
+            barrierGen.addTransitionBarrier(bufD->handles[0], D3D12_RESOURCE_STATE_COPY_DEST);
+            barrierGen.enqueueBufferedTransitionBarriers(cbD);
+
+            if (QD3D12Resource *res = resourcePool.lookupRef(bufD->handles[0])) {
+                cbD->cmdList->CopyBufferRegion(res->resource,
+                                               u.offset,
+                                               stagingAlloc.buffer,
+                                               stagingAlloc.bufferOffset + u.offset,
+                                               u.data.size());
+            }
+
+            if (ownStagingArea.has_value())
+                ownStagingArea->destroyWithDeferredRelease(&releaseQueue);
+        } else if (u.type == QRhiResourceUpdateBatchPrivate::BufferOp::Read) {
+            QD3D12Buffer *bufD = QRHI_RES(QD3D12Buffer, u.buf);
+            if (bufD->m_type == QRhiBuffer::Dynamic) {
+                bufD->executeHostWritesForFrameSlot(currentFrameSlot);
+                if (QD3D12Resource *res = resourcePool.lookupRef(bufD->handles[currentFrameSlot])) {
+                    Q_ASSERT(res->cpuMapPtr);
+                    u.result->data.resize(u.readSize);
+                    memcpy(u.result->data.data(), reinterpret_cast<char *>(res->cpuMapPtr) + u.offset, u.readSize);
+                }
+                if (u.result->completed)
+                    u.result->completed();
+            } else {
+                QD3D12Readback readback;
+                readback.frameSlot = currentFrameSlot;
+                readback.result = u.result;
+                readback.byteSize = u.readSize;
+                const quint32 allocSize = aligned(u.readSize, QD3D12StagingArea::ALIGNMENT);
+                if (!readback.staging.create(this, allocSize, D3D12_HEAP_TYPE_READBACK)) {
+                    if (u.result->completed)
+                        u.result->completed();
+                    continue;
+                }
+                QD3D12StagingArea::Allocation stagingAlloc = readback.staging.get(u.readSize);
+                if (!stagingAlloc.isValid()) {
+                    readback.staging.destroy();
+                    if (u.result->completed)
+                        u.result->completed();
+                    continue;
+                }
+                Q_ASSERT(stagingAlloc.bufferOffset == 0);
+                barrierGen.addTransitionBarrier(bufD->handles[0], D3D12_RESOURCE_STATE_COPY_SOURCE);
+                barrierGen.enqueueBufferedTransitionBarriers(cbD);
+                if (QD3D12Resource *res = resourcePool.lookupRef(bufD->handles[0])) {
+                    cbD->cmdList->CopyBufferRegion(stagingAlloc.buffer, 0, res->resource, u.offset, u.readSize);
+                    activeReadbacks.append(readback);
+                } else {
+                    readback.staging.destroy();
+                    if (u.result->completed)
+                        u.result->completed();
+                }
+            }
+        }
+    }
+
+    for (int opIdx = 0; opIdx < ud->activeTextureOpCount; ++opIdx) {
+        const QRhiResourceUpdateBatchPrivate::TextureOp &u(ud->textureOps[opIdx]);
+        if (u.type == QRhiResourceUpdateBatchPrivate::TextureOp::Upload) {
+            QD3D12Texture *texD = QRHI_RES(QD3D12Texture, u.dst);
+            const bool is3D = texD->m_flags.testFlag(QRhiTexture::ThreeDimensional);
+            QD3D12Resource *res = resourcePool.lookupRef(texD->handle);
+            if (!res)
+                continue;
+            barrierGen.addTransitionBarrier(texD->handle, D3D12_RESOURCE_STATE_COPY_DEST);
+            barrierGen.enqueueBufferedTransitionBarriers(cbD);
+            for (int layer = 0, maxLayer = u.subresDesc.size(); layer < maxLayer; ++layer) {
+                for (int level = 0; level < QRhi::MAX_MIP_LEVELS; ++level) {
+                    for (const QRhiTextureSubresourceUploadDescription &subresDesc : std::as_const(u.subresDesc[layer][level])) {
+                        D3D12_SUBRESOURCE_FOOTPRINT footprint = {};
+                        footprint.Format = res->desc.Format;
+                        footprint.Depth = 1;
+                        quint32 totalBytes = 0;
+
+                        const QSize subresSize = subresDesc.sourceSize().isEmpty() ? q->sizeForMipLevel(level, texD->m_pixelSize)
+                                                                                   : subresDesc.sourceSize();
+                        const QPoint srcPos = subresDesc.sourceTopLeft();
+                        QPoint dstPos = subresDesc.destinationTopLeft();
+
+                        if (!subresDesc.image().isNull()) {
+                            const QImage img = subresDesc.image();
+                            const int bpl = img.bytesPerLine();
+                            footprint.RowPitch = aligned<UINT>(bpl, D3D12_TEXTURE_DATA_PITCH_ALIGNMENT);
+                            totalBytes = footprint.RowPitch * img.height();
+                        } else if (!subresDesc.data().isEmpty() && isCompressedFormat(texD->m_format)) {
+                            QSize blockDim;
+                            quint32 bpl = 0;
+                            compressedFormatInfo(texD->m_format, subresSize, &bpl, nullptr, &blockDim);
+                            footprint.RowPitch = aligned<UINT>(bpl, D3D12_TEXTURE_DATA_PITCH_ALIGNMENT);
+                            const int rowCount = aligned(subresSize.height(), blockDim.height()) / blockDim.height();
+                            totalBytes = footprint.RowPitch * rowCount;
+                        } else if (!subresDesc.data().isEmpty()) {
+                            quint32 bpl = 0;
+                            if (subresDesc.dataStride())
+                                bpl = subresDesc.dataStride();
+                            else
+                                textureFormatInfo(texD->m_format, subresSize, &bpl, nullptr, nullptr);
+                            footprint.RowPitch = aligned<UINT>(bpl, D3D12_TEXTURE_DATA_PITCH_ALIGNMENT);
+                            totalBytes = footprint.RowPitch * subresSize.height();
+                        } else {
+                            qWarning("Invalid texture upload for %p layer=%d mip=%d", texD, layer, level);
+                            continue;
+                        }
+
+                        const quint32 allocSize = QD3D12StagingArea::allocSizeForArray(totalBytes, 1);
+                        QD3D12StagingArea::Allocation stagingAlloc;
+                        if (smallStagingAreas[currentFrameSlot].remainingCapacity() >= allocSize)
+                            stagingAlloc = smallStagingAreas[currentFrameSlot].get(allocSize);
+
+                        std::optional<QD3D12StagingArea> ownStagingArea;
+                        if (!stagingAlloc.isValid()) {
+                            ownStagingArea = QD3D12StagingArea();
+                            if (!ownStagingArea->create(this, allocSize, D3D12_HEAP_TYPE_UPLOAD))
+                                continue;
+                            stagingAlloc = ownStagingArea->get(allocSize);
+                            if (!stagingAlloc.isValid()) {
+                                ownStagingArea->destroy();
+                                continue;
+                            }
+                        }
+
+                        D3D12_TEXTURE_COPY_LOCATION dst;
+                        dst.pResource = res->resource;
+                        dst.Type = D3D12_TEXTURE_COPY_TYPE_SUBRESOURCE_INDEX;
+                        dst.SubresourceIndex = calcSubresource(UINT(level), is3D ? 0u : UINT(layer), texD->mipLevelCount);
+                        D3D12_TEXTURE_COPY_LOCATION src;
+                        src.pResource = stagingAlloc.buffer;
+                        src.Type = D3D12_TEXTURE_COPY_TYPE_PLACED_FOOTPRINT;
+                        src.PlacedFootprint.Offset = stagingAlloc.bufferOffset;
+
+                        D3D12_BOX srcBox; // back, right, bottom are exclusive
+
+                        if (!subresDesc.image().isNull()) {
+                            const QImage img = subresDesc.image();
+                            const int bpc = qMax(1, img.depth() / 8);
+                            const int bpl = img.bytesPerLine();
+
+                            QSize size = subresDesc.sourceSize().isEmpty() ? img.size() : subresDesc.sourceSize();
+                            size.setWidth(qMin(size.width(), img.width() - srcPos.x()));
+                            size.setHeight(qMin(size.height(), img.height() - srcPos.y()));
+
+                            footprint.Width = size.width();
+                            footprint.Height = size.height();
+
+                            srcBox.left = 0;
+                            srcBox.top = 0;
+                            srcBox.right = UINT(size.width());
+                            srcBox.bottom = UINT(size.height());
+                            srcBox.front = 0;
+                            srcBox.back = 1;
+
+                            const uchar *imgPtr = img.constBits();
+                            const quint32 lineBytes = size.width() * bpc;
+                            for (int y = 0, h = size.height(); y < h; ++y) {
+                                memcpy(stagingAlloc.p + y * footprint.RowPitch,
+                                       imgPtr + srcPos.x() * bpc + (y + srcPos.y()) * bpl,
+                                       lineBytes);
+                            }
+                        } else if (!subresDesc.data().isEmpty() && isCompressedFormat(texD->m_format)) {
+                            QSize blockDim;
+                            quint32 bpl = 0;
+                            compressedFormatInfo(texD->m_format, subresSize, &bpl, nullptr, &blockDim);
+                            // x and y must be multiples of the block width and height
+                            dstPos.setX(aligned(dstPos.x(), blockDim.width()));
+                            dstPos.setY(aligned(dstPos.y(), blockDim.height()));
+
+                            srcBox.left = 0;
+                            srcBox.top = 0;
+                            // width and height must be multiples of the block width and height
+                            srcBox.right = aligned(subresSize.width(), blockDim.width());
+                            srcBox.bottom = aligned(subresSize.height(), blockDim.height());
+
+                            srcBox.front = 0;
+                            srcBox.back = 1;
+
+                            footprint.Width = aligned(subresSize.width(), blockDim.width());
+                            footprint.Height = aligned(subresSize.height(), blockDim.height());
+
+                            const quint32 copyBytes = qMin(bpl, footprint.RowPitch);
+                            const QByteArray imgData = subresDesc.data();
+                            const char *imgPtr = imgData.constData();
+                            const int rowCount = aligned(subresSize.height(), blockDim.height()) / blockDim.height();
+                            for (int y = 0; y < rowCount; ++y)
+                                memcpy(stagingAlloc.p + y * footprint.RowPitch, imgPtr + y * bpl, copyBytes);
+                        } else if (!subresDesc.data().isEmpty()) {
+                            srcBox.left = 0;
+                            srcBox.top = 0;
+                            srcBox.right = subresSize.width();
+                            srcBox.bottom = subresSize.height();
+                            srcBox.front = 0;
+                            srcBox.back = 1;
+
+                            footprint.Width = subresSize.width();
+                            footprint.Height = subresSize.height();
+
+                            quint32 bpl = 0;
+                            if (subresDesc.dataStride())
+                                bpl = subresDesc.dataStride();
+                            else
+                                textureFormatInfo(texD->m_format, subresSize, &bpl, nullptr, nullptr);
+
+                            const quint32 copyBytes = qMin(bpl, footprint.RowPitch);
+                            const QByteArray data = subresDesc.data();
+                            const char *imgPtr = data.constData();
+                            for (int y = 0, h = subresSize.height(); y < h; ++y)
+                                memcpy(stagingAlloc.p + y * footprint.RowPitch, imgPtr + y * bpl, copyBytes);
+                        }
+
+                        src.PlacedFootprint.Footprint = footprint;
+
+                        cbD->cmdList->CopyTextureRegion(&dst,
+                                                        UINT(dstPos.x()),
+                                                        UINT(dstPos.y()),
+                                                        is3D ? UINT(layer) : 0u,
+                                                        &src,
+                                                        &srcBox);
+
+                        if (ownStagingArea.has_value())
+                            ownStagingArea->destroyWithDeferredRelease(&releaseQueue);
+                    }
+                }
+            }
+        } else if (u.type == QRhiResourceUpdateBatchPrivate::TextureOp::Copy) {
+            Q_ASSERT(u.src && u.dst);
+            QD3D12Texture *srcD = QRHI_RES(QD3D12Texture, u.src);
+            QD3D12Texture *dstD = QRHI_RES(QD3D12Texture, u.dst);
+            const bool srcIs3D = srcD->m_flags.testFlag(QRhiTexture::ThreeDimensional);
+            const bool dstIs3D = dstD->m_flags.testFlag(QRhiTexture::ThreeDimensional);
+            QD3D12Resource *srcRes = resourcePool.lookupRef(srcD->handle);
+            QD3D12Resource *dstRes = resourcePool.lookupRef(dstD->handle);
+            if (!srcRes || !dstRes)
+                continue;
+
+            barrierGen.addTransitionBarrier(srcD->handle, D3D12_RESOURCE_STATE_COPY_SOURCE);
+            barrierGen.addTransitionBarrier(dstD->handle, D3D12_RESOURCE_STATE_COPY_DEST);
+            barrierGen.enqueueBufferedTransitionBarriers(cbD);
+
+            const UINT srcSubresource = calcSubresource(UINT(u.desc.sourceLevel()),
+                                                        srcIs3D ? 0u : UINT(u.desc.sourceLayer()),
+                                                        srcD->mipLevelCount);
+            const UINT dstSubresource = calcSubresource(UINT(u.desc.destinationLevel()),
+                                                        dstIs3D ? 0u : UINT(u.desc.destinationLayer()),
+                                                        dstD->mipLevelCount);
+            const QPoint dp = u.desc.destinationTopLeft();
+            const QSize mipSize = q->sizeForMipLevel(u.desc.sourceLevel(), srcD->m_pixelSize);
+            const QSize copySize = u.desc.pixelSize().isEmpty() ? mipSize : u.desc.pixelSize();
+            const QPoint sp = u.desc.sourceTopLeft();
+
+            D3D12_BOX srcBox;
+            srcBox.left = UINT(sp.x());
+            srcBox.top = UINT(sp.y());
+            srcBox.front = srcIs3D ? UINT(u.desc.sourceLayer()) : 0u;
+            // back, right, bottom are exclusive
+            srcBox.right = srcBox.left + UINT(copySize.width());
+            srcBox.bottom = srcBox.top + UINT(copySize.height());
+            srcBox.back = srcBox.front + 1;
+
+            D3D12_TEXTURE_COPY_LOCATION src;
+            src.pResource = srcRes->resource;
+            src.Type = D3D12_TEXTURE_COPY_TYPE_SUBRESOURCE_INDEX;
+            src.SubresourceIndex = srcSubresource;
+            D3D12_TEXTURE_COPY_LOCATION dst;
+            dst.pResource = dstRes->resource;
+            dst.Type = D3D12_TEXTURE_COPY_TYPE_SUBRESOURCE_INDEX;
+            dst.SubresourceIndex = dstSubresource;
+
+            cbD->cmdList->CopyTextureRegion(&dst,
+                                            UINT(dp.x()),
+                                            UINT(dp.y()),
+                                            dstIs3D ? UINT(u.desc.destinationLayer()) : 0u,
+                                            &src,
+                                            &srcBox);
+        } else if (u.type == QRhiResourceUpdateBatchPrivate::TextureOp::Read) {
+            QD3D12Readback readback;
+            readback.frameSlot = currentFrameSlot;
+            readback.result = u.result;
+
+            QD3D12ObjectHandle srcHandle;
+            bool is3D = false;
+            if (u.rb.texture()) {
+                QD3D12Texture *texD = QRHI_RES(QD3D12Texture, u.rb.texture());
+                if (texD->sampleDesc.Count > 1) {
+                    qWarning("Multisample texture cannot be read back");
+                    continue;
+                }
+                is3D = texD->m_flags.testFlag(QRhiTexture::ThreeDimensional);
+                readback.pixelSize = q->sizeForMipLevel(u.rb.level(), texD->m_pixelSize);
+                readback.format = texD->m_format;
+                srcHandle = texD->handle;
+            } else {
+                Q_ASSERT(currentSwapChain);
+                readback.pixelSize = currentSwapChain->pixelSize;
+                readback.format = swapchainReadbackTextureFormat(currentSwapChain->colorFormat, nullptr);
+                if (readback.format == QRhiTexture::UnknownFormat)
+                    continue;
+                srcHandle = currentSwapChain->colorBuffers[currentSwapChain->currentBackBufferIndex];
+            }
+
+            textureFormatInfo(readback.format,
+                              readback.pixelSize,
+                              &readback.bytesPerLine,
+                              &readback.byteSize,
+                              nullptr);
+
+            QD3D12Resource *srcRes = resourcePool.lookupRef(srcHandle);
+            if (!srcRes)
+                continue;
+
+            const UINT subresource = calcSubresource(UINT(u.rb.level()),
+                                                     is3D ? 0u : UINT(u.rb.layer()),
+                                                     srcRes->desc.MipLevels);
+            D3D12_PLACED_SUBRESOURCE_FOOTPRINT layout;
+            // totalBytes is what we get from D3D, with the 256 aligned stride,
+            // readback.byteSize is the final result that's not relevant here yet
+            UINT64 totalBytes = 0;
+            dev->GetCopyableFootprints(&srcRes->desc, subresource, 1, 0,
+                                       &layout, nullptr, nullptr, &totalBytes);
+            readback.stagingRowPitch = layout.Footprint.RowPitch;
+
+            const quint32 allocSize = aligned<quint32>(totalBytes, QD3D12StagingArea::ALIGNMENT);
+            if (!readback.staging.create(this, allocSize, D3D12_HEAP_TYPE_READBACK)) {
+                if (u.result->completed)
+                    u.result->completed();
+                continue;
+            }
+            QD3D12StagingArea::Allocation stagingAlloc = readback.staging.get(totalBytes);
+            if (!stagingAlloc.isValid()) {
+                readback.staging.destroy();
+                if (u.result->completed)
+                    u.result->completed();
+                continue;
+            }
+            Q_ASSERT(stagingAlloc.bufferOffset == 0);
+
+            barrierGen.addTransitionBarrier(srcHandle, D3D12_RESOURCE_STATE_COPY_SOURCE);
+            barrierGen.enqueueBufferedTransitionBarriers(cbD);
+
+            D3D12_TEXTURE_COPY_LOCATION dst;
+            dst.pResource = stagingAlloc.buffer;
+            dst.Type = D3D12_TEXTURE_COPY_TYPE_PLACED_FOOTPRINT;
+            dst.PlacedFootprint.Offset = 0;
+            dst.PlacedFootprint.Footprint = layout.Footprint;
+
+            D3D12_TEXTURE_COPY_LOCATION src;
+            src.pResource = srcRes->resource;
+            src.Type = D3D12_TEXTURE_COPY_TYPE_SUBRESOURCE_INDEX;
+            src.SubresourceIndex = subresource;
+
+            D3D12_BOX srcBox = {};
+            if (is3D) {
+                srcBox.front = UINT(u.rb.layer());
+                srcBox.back = srcBox.front + 1;
+                srcBox.right = readback.pixelSize.width(); // exclusive
+                srcBox.bottom = readback.pixelSize.height();
+            }
+            cbD->cmdList->CopyTextureRegion(&dst, 0, 0, 0, &src, is3D ? &srcBox : nullptr);
+            activeReadbacks.append(readback);
+        } else if (u.type == QRhiResourceUpdateBatchPrivate::TextureOp::GenMips) {
+            QD3D12Texture *texD = QRHI_RES(QD3D12Texture, u.dst);
+            Q_ASSERT(texD->flags().testFlag(QRhiTexture::UsedWithGenerateMips));
+            mipmapGen.generate(cbD, texD->handle);
+        }
+    }
+
+    ud->free();
+}
+
+void QRhiD3D12::finishActiveReadbacks(bool forced)
+{
+    QVarLengthArray<std::function<void()>, 4> completedCallbacks;
+
+    for (int i = activeReadbacks.size() - 1; i >= 0; --i) {
+        QD3D12Readback &readback(activeReadbacks[i]);
+        if (forced || currentFrameSlot == readback.frameSlot || readback.frameSlot < 0) {
+            readback.result->format = readback.format;
+            readback.result->pixelSize = readback.pixelSize;
+            readback.result->data.resize(int(readback.byteSize));
+
+            if (readback.format != QRhiTexture::UnknownFormat) {
+                quint8 *dstPtr = reinterpret_cast<quint8 *>(readback.result->data.data());
+                const quint8 *srcPtr = readback.staging.mem.p;
+                const quint32 lineSize = qMin(readback.bytesPerLine, readback.stagingRowPitch);
+                for (int y = 0, h = readback.pixelSize.height(); y < h; ++y)
+                    memcpy(dstPtr + y * readback.bytesPerLine, srcPtr + y * readback.stagingRowPitch, lineSize);
+            } else {
+                memcpy(readback.result->data.data(), readback.staging.mem.p, readback.byteSize);
+            }
+
+            readback.staging.destroy();
+
+            if (readback.result->completed)
+                completedCallbacks.append(readback.result->completed);
+
+            activeReadbacks.removeLast();
+        }
+    }
+
+    for (auto f : completedCallbacks)
+        f();
+}
+
+bool QRhiD3D12::ensureShaderVisibleDescriptorHeapCapacity(QD3D12ShaderVisibleDescriptorHeap *h,
+                                                          D3D12_DESCRIPTOR_HEAP_TYPE type,
+                                                          int frameSlot,
+                                                          quint32 neededDescriptorCount,
+                                                          bool *gotNew)
+{
+    // Gets a new heap if needed. Note that the capacity we get is clamped
+    // automatically (e.g. to 1 million, or 2048 for samplers), so * 2 does not
+    // mean we can grow indefinitely, then again even using the same size would
+    // work (because we what we are after here is a new heap for the rest of
+    // the commands, not affecting what's already recorded).
+    if (h->perFrameHeapSlice[frameSlot].remainingCapacity() < neededDescriptorCount) {
+        const quint32 newPerFrameSize = qMax(h->perFrameHeapSlice[frameSlot].capacity * 2,
+                                             neededDescriptorCount);
+        QD3D12ShaderVisibleDescriptorHeap newHeap;
+        if (!newHeap.create(dev, type, newPerFrameSize)) {
+            qWarning("Could not create new shader-visible descriptor heap");
+            return false;
+        }
+        h->destroyWithDeferredRelease(&releaseQueue);
+        *h = newHeap;
+        *gotNew = true;
+    }
+    return true;
+}
+
+void QRhiD3D12::bindShaderVisibleHeaps(QD3D12CommandBuffer *cbD)
+{
+    ID3D12DescriptorHeap *heaps[] = {
+        shaderVisibleCbvSrvUavHeap.heap.heap,
+        samplerMgr.shaderVisibleSamplerHeap.heap.heap
+    };
+    cbD->cmdList->SetDescriptorHeaps(2, heaps);
+}
+
+QD3D12Buffer::QD3D12Buffer(QRhiImplementation *rhi, Type type, UsageFlags usage, quint32 size)
+    : QRhiBuffer(rhi, type, usage, size)
+{
+}
+
+QD3D12Buffer::~QD3D12Buffer()
+{
+    destroy();
+}
+
+void QD3D12Buffer::destroy()
+{
+    if (handles[0].isNull())
+        return;
+
+    QRHI_RES_RHI(QRhiD3D12);
+
+    // destroy() implementations, unlike other functions, are expected to test
+    // for m_rhi (rhiD) being null, to allow surviving in case one attempts to
+    // destroy a (leaked) resource after the QRhi.
+    //
+    // If there is no QRhi anymore, we do not deferred-release but that's fine
+    // since the QRhi already released everything that was in the resourcePool.
+
+    for (int i = 0; i < QD3D12_FRAMES_IN_FLIGHT; ++i) {
+        if (rhiD)
+            rhiD->releaseQueue.deferredReleaseResource(handles[i]);
+        handles[i] = {};
+        pendingHostWrites[i].clear();
+    }
+
+    if (rhiD)
+        rhiD->unregisterResource(this);
+}
+
+bool QD3D12Buffer::create()
+{
+    if (!handles[0].isNull())
+        destroy();
+
+    if (m_usage.testFlag(QRhiBuffer::UniformBuffer) && m_type != Dynamic) {
+        qWarning("UniformBuffer must always be Dynamic");
+        return false;
+    }
+
+    if (m_usage.testFlag(QRhiBuffer::StorageBuffer) && m_type == Dynamic) {
+        qWarning("StorageBuffer cannot be combined with Dynamic");
+        return false;
+    }
+
+    const quint32 nonZeroSize = m_size <= 0 ? 256 : m_size;
+    const quint32 roundedSize = aligned(nonZeroSize, m_usage.testFlag(QRhiBuffer::UniformBuffer) ? 256u : 4u);
+
+    UINT resourceFlags = D3D12_RESOURCE_FLAG_NONE;
+    if (m_usage.testFlag(QRhiBuffer::StorageBuffer))
+        resourceFlags |= D3D12_RESOURCE_FLAG_ALLOW_UNORDERED_ACCESS;
+
+    QRHI_RES_RHI(QRhiD3D12);
+    HRESULT hr = 0;
+    for (int i = 0; i < QD3D12_FRAMES_IN_FLIGHT; ++i) {
+        if (i == 0 || m_type == Dynamic) {
+            D3D12_RESOURCE_DESC resourceDesc = {};
+            resourceDesc.Dimension = D3D12_RESOURCE_DIMENSION_BUFFER;
+            resourceDesc.Width = roundedSize;
+            resourceDesc.Height = 1;
+            resourceDesc.DepthOrArraySize = 1;
+            resourceDesc.MipLevels = 1;
+            resourceDesc.Format = DXGI_FORMAT_UNKNOWN;
+            resourceDesc.SampleDesc = { 1, 0 };
+            resourceDesc.Layout = D3D12_TEXTURE_LAYOUT_ROW_MAJOR;
+            resourceDesc.Flags = D3D12_RESOURCE_FLAGS(resourceFlags);
+            ID3D12Resource *resource = nullptr;
+            D3D12MA::Allocation *allocation = nullptr;
+            // Dynamic == host (CPU) visible
+            D3D12_HEAP_TYPE heapType = m_type == Dynamic
+                    ? D3D12_HEAP_TYPE_UPLOAD
+                    : D3D12_HEAP_TYPE_DEFAULT;
+            D3D12_RESOURCE_STATES resourceState = m_type == Dynamic
+                    ? D3D12_RESOURCE_STATE_GENERIC_READ
+                    : D3D12_RESOURCE_STATE_COMMON;
+            hr = rhiD->vma.createResource(heapType,
+                                          &resourceDesc,
+                                          resourceState,
+                                          nullptr,
+                                          &allocation,
+                                          __uuidof(resource),
+                                          reinterpret_cast<void **>(&resource));
+            if (FAILED(hr))
+                break;
+            if (!m_objectName.isEmpty()) {
+                QString decoratedName = QString::fromUtf8(m_objectName);
+                if (m_type == Dynamic) {
+                    decoratedName += QLatin1Char('/');
+                    decoratedName += QString::number(i);
+                }
+                resource->SetName(reinterpret_cast<LPCWSTR>(decoratedName.utf16()));
+            }
+            void *cpuMemPtr = nullptr;
+            if (m_type == Dynamic) {
+                // will be mapped for ever on the CPU, this makes future host write operations very simple
+                hr = resource->Map(0, nullptr, &cpuMemPtr);
+                if (FAILED(hr)) {
+                    qWarning("Map() failed to dynamic buffer");
+                    resource->Release();
+                    if (allocation)
+                        allocation->Release();
+                    break;
+                }
+            }
+            handles[i] = QD3D12Resource::addToPool(&rhiD->resourcePool,
+                                                   resource,
+                                                   resourceState,
+                                                   allocation,
+                                                   cpuMemPtr);
+        }
+    }
+    if (FAILED(hr)) {
+        qWarning("Failed to create buffer: '%s' Type was %d, size was %u, using D3D12MA was %d.",
+                 qPrintable(QSystemError::windowsComString(hr)),
+                 int(m_type),
+                 roundedSize,
+                 int(rhiD->vma.isUsingD3D12MA()));
+        return false;
+    }
+
+    rhiD->registerResource(this);
+    return true;
+}
+
+QRhiBuffer::NativeBuffer QD3D12Buffer::nativeBuffer()
+{
+    NativeBuffer b;
+    Q_ASSERT(sizeof(b.objects) / sizeof(b.objects[0]) >= size_t(QD3D12_FRAMES_IN_FLIGHT));
+    QRHI_RES_RHI(QRhiD3D12);
+    if (m_type == Dynamic) {
+        for (int i = 0; i < QD3D12_FRAMES_IN_FLIGHT; ++i) {
+            executeHostWritesForFrameSlot(i);
+            if (QD3D12Resource *res = rhiD->resourcePool.lookupRef(handles[i]))
+                b.objects[i] = res->resource;
+            else
+                b.objects[i] = nullptr;
+        }
+        b.slotCount = QD3D12_FRAMES_IN_FLIGHT;
+        return b;
+    }
+    if (QD3D12Resource *res = rhiD->resourcePool.lookupRef(handles[0]))
+        b.objects[0] = res->resource;
+    else
+        b.objects[0] = nullptr;
+    b.slotCount = 1;
+    return b;
+}
+
+char *QD3D12Buffer::beginFullDynamicBufferUpdateForCurrentFrame()
+{
+    // Shortcut the entire buffer update mechanism and allow the client to do
+    // the host writes directly to the buffer. This will lead to unexpected
+    // results when combined with QRhiResourceUpdateBatch-based updates for the
+    // buffer, but provides a fast path for dynamic buffers that have all their
+    // content changed in every frame.
+
+    Q_ASSERT(m_type == Dynamic);
+    QRHI_RES_RHI(QRhiD3D12);
+    Q_ASSERT(rhiD->inFrame);
+    if (QD3D12Resource *res = rhiD->resourcePool.lookupRef(handles[rhiD->currentFrameSlot]))
+        return static_cast<char *>(res->cpuMapPtr);
+
+    return nullptr;
+}
+
+void QD3D12Buffer::endFullDynamicBufferUpdateForCurrentFrame()
+{
+    // nothing to do here
+}
+
+void QD3D12Buffer::executeHostWritesForFrameSlot(int frameSlot)
+{
+    if (pendingHostWrites[frameSlot].isEmpty())
+        return;
+
+    Q_ASSERT(m_type == QRhiBuffer::Dynamic);
+    QRHI_RES_RHI(QRhiD3D12);
+    if (QD3D12Resource *res = rhiD->resourcePool.lookupRef(handles[frameSlot])) {
+        Q_ASSERT(res->cpuMapPtr);
+        for (const QD3D12Buffer::HostWrite &u : std::as_const(pendingHostWrites[frameSlot]))
+            memcpy(static_cast<char *>(res->cpuMapPtr) + u.offset, u.data.constData(), u.data.size());
+    }
+    pendingHostWrites[frameSlot].clear();
+}
+
+static inline DXGI_FORMAT toD3DTextureFormat(QRhiTexture::Format format, QRhiTexture::Flags flags)
+{
+    const bool srgb = flags.testFlag(QRhiTexture::sRGB);
+    switch (format) {
+    case QRhiTexture::RGBA8:
+        return srgb ? DXGI_FORMAT_R8G8B8A8_UNORM_SRGB : DXGI_FORMAT_R8G8B8A8_UNORM;
+    case QRhiTexture::BGRA8:
+        return srgb ? DXGI_FORMAT_B8G8R8A8_UNORM_SRGB : DXGI_FORMAT_B8G8R8A8_UNORM;
+    case QRhiTexture::R8:
+        return DXGI_FORMAT_R8_UNORM;
+    case QRhiTexture::RG8:
+        return DXGI_FORMAT_R8G8_UNORM;
+    case QRhiTexture::R16:
+        return DXGI_FORMAT_R16_UNORM;
+    case QRhiTexture::RG16:
+        return DXGI_FORMAT_R16G16_UNORM;
+    case QRhiTexture::RED_OR_ALPHA8:
+        return DXGI_FORMAT_R8_UNORM;
+
+    case QRhiTexture::RGBA16F:
+        return DXGI_FORMAT_R16G16B16A16_FLOAT;
+    case QRhiTexture::RGBA32F:
+        return DXGI_FORMAT_R32G32B32A32_FLOAT;
+    case QRhiTexture::R16F:
+        return DXGI_FORMAT_R16_FLOAT;
+    case QRhiTexture::R32F:
+        return DXGI_FORMAT_R32_FLOAT;
+
+    case QRhiTexture::RGB10A2:
+        return DXGI_FORMAT_R10G10B10A2_UNORM;
+
+    case QRhiTexture::D16:
+        return DXGI_FORMAT_R16_TYPELESS;
+    case QRhiTexture::D24:
+        return DXGI_FORMAT_R24G8_TYPELESS;
+    case QRhiTexture::D24S8:
+        return DXGI_FORMAT_R24G8_TYPELESS;
+    case QRhiTexture::D32F:
+        return DXGI_FORMAT_R32_TYPELESS;
+
+    case QRhiTexture::BC1:
+        return srgb ? DXGI_FORMAT_BC1_UNORM_SRGB : DXGI_FORMAT_BC1_UNORM;
+    case QRhiTexture::BC2:
+        return srgb ? DXGI_FORMAT_BC2_UNORM_SRGB : DXGI_FORMAT_BC2_UNORM;
+    case QRhiTexture::BC3:
+        return srgb ? DXGI_FORMAT_BC3_UNORM_SRGB : DXGI_FORMAT_BC3_UNORM;
+    case QRhiTexture::BC4:
+        return DXGI_FORMAT_BC4_UNORM;
+    case QRhiTexture::BC5:
+        return DXGI_FORMAT_BC5_UNORM;
+    case QRhiTexture::BC6H:
+        return DXGI_FORMAT_BC6H_UF16;
+    case QRhiTexture::BC7:
+        return srgb ? DXGI_FORMAT_BC7_UNORM_SRGB : DXGI_FORMAT_BC7_UNORM;
+
+    case QRhiTexture::ETC2_RGB8:
+    case QRhiTexture::ETC2_RGB8A1:
+    case QRhiTexture::ETC2_RGBA8:
+        qWarning("QRhiD3D12 does not support ETC2 textures");
+        return DXGI_FORMAT_R8G8B8A8_UNORM;
+
+    case QRhiTexture::ASTC_4x4:
+    case QRhiTexture::ASTC_5x4:
+    case QRhiTexture::ASTC_5x5:
+    case QRhiTexture::ASTC_6x5:
+    case QRhiTexture::ASTC_6x6:
+    case QRhiTexture::ASTC_8x5:
+    case QRhiTexture::ASTC_8x6:
+    case QRhiTexture::ASTC_8x8:
+    case QRhiTexture::ASTC_10x5:
+    case QRhiTexture::ASTC_10x6:
+    case QRhiTexture::ASTC_10x8:
+    case QRhiTexture::ASTC_10x10:
+    case QRhiTexture::ASTC_12x10:
+    case QRhiTexture::ASTC_12x12:
+        qWarning("QRhiD3D12 does not support ASTC textures");
+        return DXGI_FORMAT_R8G8B8A8_UNORM;
+
+    default:
+        break;
+    }
+    return DXGI_FORMAT_R8G8B8A8_UNORM;
+}
+
+QD3D12RenderBuffer::QD3D12RenderBuffer(QRhiImplementation *rhi,
+                                       Type type,
+                                       const QSize &pixelSize,
+                                       int sampleCount,
+                                       Flags flags,
+                                       QRhiTexture::Format backingFormatHint)
+    : QRhiRenderBuffer(rhi, type, pixelSize, sampleCount, flags, backingFormatHint)
+{
+}
+
+QD3D12RenderBuffer::~QD3D12RenderBuffer()
+{
+    destroy();
+}
+
+void QD3D12RenderBuffer::destroy()
+{
+    if (handle.isNull())
+        return;
+
+    QRHI_RES_RHI(QRhiD3D12);
+    if (rhiD) {
+        if (rtv.isValid())
+            rhiD->releaseQueue.deferredReleaseResourceWithViews(handle, &rhiD->rtvPool, rtv, 1);
+        else if (dsv.isValid())
+            rhiD->releaseQueue.deferredReleaseResourceWithViews(handle, &rhiD->dsvPool, dsv, 1);
+    }
+
+    handle = {};
+    rtv = {};
+    dsv = {};
+
+    if (rhiD)
+        rhiD->unregisterResource(this);
+}
+
+bool QD3D12RenderBuffer::create()
+{
+    if (!handle.isNull())
+        destroy();
+
+    if (m_pixelSize.isEmpty())
+        return false;
+
+    QRHI_RES_RHI(QRhiD3D12);
+
+    switch (m_type) {
+    case QRhiRenderBuffer::Color:
+    {
+        dxgiFormat = toD3DTextureFormat(backingFormat(), {});
+        sampleDesc = rhiD->effectiveSampleCount(m_sampleCount, dxgiFormat);
+        D3D12_RESOURCE_DESC resourceDesc = {};
+        resourceDesc.Dimension = D3D12_RESOURCE_DIMENSION_TEXTURE2D;
+        resourceDesc.Width = UINT64(m_pixelSize.width());
+        resourceDesc.Height = UINT(m_pixelSize.height());
+        resourceDesc.DepthOrArraySize = 1;
+        resourceDesc.MipLevels = 1;
+        resourceDesc.Format = dxgiFormat;
+        resourceDesc.SampleDesc = sampleDesc;
+        resourceDesc.Layout = D3D12_TEXTURE_LAYOUT_UNKNOWN;
+        resourceDesc.Flags = D3D12_RESOURCE_FLAG_ALLOW_RENDER_TARGET;
+        D3D12_CLEAR_VALUE clearValue = {};
+        clearValue.Format = dxgiFormat;
+        // have a separate allocation and resource object (meaning both will need its own Release())
+        ID3D12Resource *resource = nullptr;
+        D3D12MA::Allocation *allocation = nullptr;
+        HRESULT hr = rhiD->vma.createResource(D3D12_HEAP_TYPE_DEFAULT,
+                                              &resourceDesc,
+                                              D3D12_RESOURCE_STATE_RENDER_TARGET,
+                                              &clearValue,
+                                              &allocation,
+                                              __uuidof(ID3D12Resource),
+                                              reinterpret_cast<void **>(&resource));
+        if (FAILED(hr)) {
+            qWarning("Failed to create color buffer: %s", qPrintable(QSystemError::windowsComString(hr)));
+            return false;
+        }
+        handle = QD3D12Resource::addToPool(&rhiD->resourcePool, resource, D3D12_RESOURCE_STATE_RENDER_TARGET, allocation);
+        rtv = rhiD->rtvPool.allocate(1);
+        if (!rtv.isValid())
+            return false;
+        D3D12_RENDER_TARGET_VIEW_DESC rtvDesc = {};
+        rtvDesc.Format = dxgiFormat;
+        rtvDesc.ViewDimension = sampleDesc.Count > 1 ? D3D12_RTV_DIMENSION_TEXTURE2DMS
+                                                     : D3D12_RTV_DIMENSION_TEXTURE2D;
+        rhiD->dev->CreateRenderTargetView(resource, &rtvDesc, rtv.cpuHandle);
+    }
+        break;
+    case QRhiRenderBuffer::DepthStencil:
+    {
+        dxgiFormat = DS_FORMAT;
+        sampleDesc = rhiD->effectiveSampleCount(m_sampleCount, dxgiFormat);
+        D3D12_RESOURCE_DESC resourceDesc = {};
+        resourceDesc.Dimension = D3D12_RESOURCE_DIMENSION_TEXTURE2D;
+        resourceDesc.Width = UINT64(m_pixelSize.width());
+        resourceDesc.Height = UINT(m_pixelSize.height());
+        resourceDesc.DepthOrArraySize = 1;
+        resourceDesc.MipLevels = 1;
+        resourceDesc.Format = dxgiFormat;
+        resourceDesc.SampleDesc = sampleDesc;
+        resourceDesc.Layout = D3D12_TEXTURE_LAYOUT_UNKNOWN;
+        resourceDesc.Flags = D3D12_RESOURCE_FLAG_ALLOW_DEPTH_STENCIL;
+        if (m_flags.testFlag(UsedWithSwapChainOnly))
+            resourceDesc.Flags |= D3D12_RESOURCE_FLAG_DENY_SHADER_RESOURCE;
+        D3D12_CLEAR_VALUE clearValue = {};
+        clearValue.Format = dxgiFormat;
+        clearValue.DepthStencil.Depth = 1.0f;
+        clearValue.DepthStencil.Stencil = 0;
+        ID3D12Resource *resource = nullptr;
+        D3D12MA::Allocation *allocation = nullptr;
+        HRESULT hr = rhiD->vma.createResource(D3D12_HEAP_TYPE_DEFAULT,
+                                              &resourceDesc,
+                                              D3D12_RESOURCE_STATE_DEPTH_WRITE,
+                                              &clearValue,
+                                              &allocation,
+                                              __uuidof(ID3D12Resource),
+                                              reinterpret_cast<void **>(&resource));
+        if (FAILED(hr)) {
+            qWarning("Failed to create depth-stencil buffer: %s", qPrintable(QSystemError::windowsComString(hr)));
+            return false;
+        }
+        handle = QD3D12Resource::addToPool(&rhiD->resourcePool, resource, D3D12_RESOURCE_STATE_DEPTH_WRITE, allocation);
+        dsv = rhiD->dsvPool.allocate(1);
+        if (!dsv.isValid())
+            return false;
+        D3D12_DEPTH_STENCIL_VIEW_DESC dsvDesc = {};
+        dsvDesc.Format = dxgiFormat;
+        dsvDesc.ViewDimension = sampleDesc.Count > 1 ? D3D12_DSV_DIMENSION_TEXTURE2DMS
+                                                     : D3D12_DSV_DIMENSION_TEXTURE2D;
+        rhiD->dev->CreateDepthStencilView(resource, &dsvDesc, dsv.cpuHandle);
+    }
+        break;
+    }
+
+    if (!m_objectName.isEmpty()) {
+        if (QD3D12Resource *res = rhiD->resourcePool.lookupRef(handle)) {
+            const QString name = QString::fromUtf8(m_objectName);
+            res->resource->SetName(reinterpret_cast<LPCWSTR>(name.utf16()));
+        }
+    }
+
+    generation += 1;
+    rhiD->registerResource(this);
+    return true;
+}
+
+QRhiTexture::Format QD3D12RenderBuffer::backingFormat() const
+{
+    if (m_backingFormatHint != QRhiTexture::UnknownFormat)
+        return m_backingFormatHint;
+    else
+        return m_type == Color ? QRhiTexture::RGBA8 : QRhiTexture::UnknownFormat;
+}
+
+QD3D12Texture::QD3D12Texture(QRhiImplementation *rhi, Format format, const QSize &pixelSize, int depth,
+                             int arraySize, int sampleCount, Flags flags)
+    : QRhiTexture(rhi, format, pixelSize, depth, arraySize, sampleCount, flags)
+{
+}
+
+QD3D12Texture::~QD3D12Texture()
+{
+    destroy();
+}
+
+void QD3D12Texture::destroy()
+{
+    if (handle.isNull())
+        return;
+
+    QRHI_RES_RHI(QRhiD3D12);
+    if (rhiD)
+        rhiD->releaseQueue.deferredReleaseResourceWithViews(handle, &rhiD->cbvSrvUavPool, srv, 1);
+
+    handle = {};
+    srv = {};
+
+    if (rhiD)
+        rhiD->unregisterResource(this);
+}
+
+static inline DXGI_FORMAT toD3DDepthTextureSRVFormat(QRhiTexture::Format format)
+{
+    switch (format) {
+    case QRhiTexture::Format::D16:
+        return DXGI_FORMAT_R16_FLOAT;
+    case QRhiTexture::Format::D24:
+        return DXGI_FORMAT_R24_UNORM_X8_TYPELESS;
+    case QRhiTexture::Format::D24S8:
+        return DXGI_FORMAT_R24_UNORM_X8_TYPELESS;
+    case QRhiTexture::Format::D32F:
+        return DXGI_FORMAT_R32_FLOAT;
+    default:
+        break;
+    }
+    Q_UNREACHABLE_RETURN(DXGI_FORMAT_R32_FLOAT);
+}
+
+static inline DXGI_FORMAT toD3DDepthTextureDSVFormat(QRhiTexture::Format format)
+{
+    // here the result cannot be typeless
+    switch (format) {
+    case QRhiTexture::Format::D16:
+        return DXGI_FORMAT_D16_UNORM;
+    case QRhiTexture::Format::D24:
+        return DXGI_FORMAT_D24_UNORM_S8_UINT;
+    case QRhiTexture::Format::D24S8:
+        return DXGI_FORMAT_D24_UNORM_S8_UINT;
+    case QRhiTexture::Format::D32F:
+        return DXGI_FORMAT_D32_FLOAT;
+    default:
+        break;
+    }
+    Q_UNREACHABLE_RETURN(DXGI_FORMAT_D32_FLOAT);
+}
+
+static inline bool isDepthTextureFormat(QRhiTexture::Format format)
+{
+    switch (format) {
+    case QRhiTexture::Format::D16:
+    case QRhiTexture::Format::D24:
+    case QRhiTexture::Format::D24S8:
+    case QRhiTexture::Format::D32F:
+        return true;
+    default:
+        return false;
+    }
+}
+
+bool QD3D12Texture::prepareCreate(QSize *adjustedSize)
+{
+    if (!handle.isNull())
+        destroy();
+
+    const bool isDepth = isDepthTextureFormat(m_format);
+    const bool isCube = m_flags.testFlag(CubeMap);
+    const bool is3D = m_flags.testFlag(ThreeDimensional);
+    const bool isArray = m_flags.testFlag(TextureArray);
+    const bool hasMipMaps = m_flags.testFlag(MipMapped);
+    const bool is1D = m_flags.testFlag(OneDimensional);
+
+    const QSize size = is1D ? QSize(qMax(1, m_pixelSize.width()), 1)
+                            : (m_pixelSize.isEmpty() ? QSize(1, 1) : m_pixelSize);
+
+    QRHI_RES_RHI(QRhiD3D12);
+    dxgiFormat = toD3DTextureFormat(m_format, m_flags);
+    mipLevelCount = uint(hasMipMaps ? rhiD->q->mipLevelsForSize(size) : 1);
+    sampleDesc = rhiD->effectiveSampleCount(m_sampleCount, dxgiFormat);
+    if (sampleDesc.Count > 1) {
+        if (isCube) {
+            qWarning("Cubemap texture cannot be multisample");
+            return false;
+        }
+        if (is3D) {
+            qWarning("3D texture cannot be multisample");
+            return false;
+        }
+        if (hasMipMaps) {
+            qWarning("Multisample texture cannot have mipmaps");
+            return false;
+        }
+    }
+    if (isDepth && hasMipMaps) {
+        qWarning("Depth texture cannot have mipmaps");
+        return false;
+    }
+    if (isCube && is3D) {
+        qWarning("Texture cannot be both cube and 3D");
+        return false;
+    }
+    if (isArray && is3D) {
+        qWarning("Texture cannot be both array and 3D");
+        return false;
+    }
+    if (isCube && is1D) {
+        qWarning("Texture cannot be both cube and 1D");
+        return false;
+    }
+    if (is1D && is3D) {
+        qWarning("Texture cannot be both 1D and 3D");
+        return false;
+    }
+    if (m_depth > 1 && !is3D) {
+        qWarning("Texture cannot have a depth of %d when it is not 3D", m_depth);
+        return false;
+    }
+    if (m_arraySize > 0 && !isArray) {
+        qWarning("Texture cannot have an array size of %d when it is not an array", m_arraySize);
+        return false;
+    }
+    if (m_arraySize < 1 && isArray) {
+        qWarning("Texture is an array but array size is %d", m_arraySize);
+        return false;
+    }
+
+    if (adjustedSize)
+        *adjustedSize = size;
+
+    return true;
+}
+
+bool QD3D12Texture::finishCreate()
+{
+    QRHI_RES_RHI(QRhiD3D12);
+    const bool isDepth = isDepthTextureFormat(m_format);
+    const bool isCube = m_flags.testFlag(CubeMap);
+    const bool is3D = m_flags.testFlag(ThreeDimensional);
+    const bool isArray = m_flags.testFlag(TextureArray);
+    const bool is1D = m_flags.testFlag(OneDimensional);
+
+    D3D12_SHADER_RESOURCE_VIEW_DESC srvDesc = {};
+    srvDesc.Format = isDepth ? toD3DDepthTextureSRVFormat(m_format) : dxgiFormat;
+    srvDesc.Shader4ComponentMapping = D3D12_DEFAULT_SHADER_4_COMPONENT_MAPPING;
+
+    if (isCube) {
+        srvDesc.ViewDimension = D3D12_SRV_DIMENSION_TEXTURECUBE;
+        srvDesc.TextureCube.MipLevels = mipLevelCount;
+    } else {
+        if (is1D) {
+            if (isArray) {
+                srvDesc.ViewDimension = D3D12_SRV_DIMENSION_TEXTURE1DARRAY;
+                srvDesc.Texture1DArray.MipLevels = mipLevelCount;
+                if (m_arrayRangeStart >= 0 && m_arrayRangeLength >= 0) {
+                    srvDesc.Texture1DArray.FirstArraySlice = UINT(m_arrayRangeStart);
+                    srvDesc.Texture1DArray.ArraySize = UINT(m_arrayRangeLength);
+                } else {
+                    srvDesc.Texture1DArray.FirstArraySlice = 0;
+                    srvDesc.Texture1DArray.ArraySize = UINT(qMax(0, m_arraySize));
+                }
+            } else {
+                srvDesc.ViewDimension = D3D12_SRV_DIMENSION_TEXTURE1D;
+                srvDesc.Texture1D.MipLevels = mipLevelCount;
+            }
+        } else if (isArray) {
+            if (sampleDesc.Count > 1) {
+                srvDesc.ViewDimension = D3D12_SRV_DIMENSION_TEXTURE2DMSARRAY;
+                if (m_arrayRangeStart >= 0 && m_arrayRangeLength >= 0) {
+                    srvDesc.Texture2DMSArray.FirstArraySlice = UINT(m_arrayRangeStart);
+                    srvDesc.Texture2DMSArray.ArraySize = UINT(m_arrayRangeLength);
+                } else {
+                    srvDesc.Texture2DMSArray.FirstArraySlice = 0;
+                    srvDesc.Texture2DMSArray.ArraySize = UINT(qMax(0, m_arraySize));
+                }
+            } else {
+                srvDesc.ViewDimension = D3D12_SRV_DIMENSION_TEXTURE2DARRAY;
+                srvDesc.Texture2DArray.MipLevels = mipLevelCount;
+                if (m_arrayRangeStart >= 0 && m_arrayRangeLength >= 0) {
+                    srvDesc.Texture2DArray.FirstArraySlice = UINT(m_arrayRangeStart);
+                    srvDesc.Texture2DArray.ArraySize = UINT(m_arrayRangeLength);
+                } else {
+                    srvDesc.Texture2DArray.FirstArraySlice = 0;
+                    srvDesc.Texture2DArray.ArraySize = UINT(qMax(0, m_arraySize));
+                }
+            }
+        } else {
+            if (sampleDesc.Count > 1) {
+                srvDesc.ViewDimension = D3D12_SRV_DIMENSION_TEXTURE2DMS;
+            } else if (is3D) {
+                srvDesc.ViewDimension = D3D12_SRV_DIMENSION_TEXTURE3D;
+                srvDesc.Texture3D.MipLevels = mipLevelCount;
+            } else {
+                srvDesc.ViewDimension = D3D12_SRV_DIMENSION_TEXTURE2D;
+                srvDesc.Texture2D.MipLevels = mipLevelCount;
+            }
+        }
+    }
+
+    srv = rhiD->cbvSrvUavPool.allocate(1);
+    if (!srv.isValid())
+        return false;
+
+    if (QD3D12Resource *res = rhiD->resourcePool.lookupRef(handle)) {
+        rhiD->dev->CreateShaderResourceView(res->resource, &srvDesc, srv.cpuHandle);
+        if (!m_objectName.isEmpty()) {
+            const QString name = QString::fromUtf8(m_objectName);
+            res->resource->SetName(reinterpret_cast<LPCWSTR>(name.utf16()));
+        }
+    } else {
+        return false;
+    }
+
+    generation += 1;
+    return true;
+}
+
+bool QD3D12Texture::create()
+{
+    QSize size;
+    if (!prepareCreate(&size))
+        return false;
+
+    const bool isDepth = isDepthTextureFormat(m_format);
+    const bool isCube = m_flags.testFlag(CubeMap);
+    const bool is3D = m_flags.testFlag(ThreeDimensional);
+    const bool isArray = m_flags.testFlag(TextureArray);
+    const bool is1D = m_flags.testFlag(OneDimensional);
+
+    QRHI_RES_RHI(QRhiD3D12);
+
+    bool needsOptimizedClearValueSpecified = false;
+    UINT resourceFlags = 0;
+    if (m_flags.testFlag(RenderTarget)) {
+        if (isDepth)
+            resourceFlags |= D3D12_RESOURCE_FLAG_ALLOW_DEPTH_STENCIL;
+        else
+            resourceFlags |= D3D12_RESOURCE_FLAG_ALLOW_RENDER_TARGET;
+        needsOptimizedClearValueSpecified = true;
+    }
+    if (m_flags.testFlag(UsedWithGenerateMips)) {
+        if (isDepth) {
+            qWarning("Depth texture cannot have mipmaps generated");
+            return false;
+        }
+        resourceFlags |= D3D12_RESOURCE_FLAG_ALLOW_UNORDERED_ACCESS;
+    }
+    if (m_flags.testFlag(UsedWithLoadStore))
+        resourceFlags |= D3D12_RESOURCE_FLAG_ALLOW_UNORDERED_ACCESS;
+
+    D3D12_RESOURCE_DESC resourceDesc = {};
+    resourceDesc.Dimension = is1D ? D3D12_RESOURCE_DIMENSION_TEXTURE1D
+                                  : (is3D ? D3D12_RESOURCE_DIMENSION_TEXTURE3D
+                                          : D3D12_RESOURCE_DIMENSION_TEXTURE2D);
+    resourceDesc.Width = UINT64(size.width());
+    resourceDesc.Height = UINT(size.height());
+    resourceDesc.DepthOrArraySize = isCube ? 6
+                                           : (isArray ? UINT(qMax(0, m_arraySize))
+                                                      : (is3D ? qMax(1, m_depth)
+                                                              : 1));
+    resourceDesc.MipLevels = mipLevelCount;
+    resourceDesc.Format = dxgiFormat;
+    resourceDesc.SampleDesc = sampleDesc;
+    resourceDesc.Layout = D3D12_TEXTURE_LAYOUT_UNKNOWN;
+    resourceDesc.Flags = D3D12_RESOURCE_FLAGS(resourceFlags);
+    D3D12_CLEAR_VALUE clearValue = {};
+    clearValue.Format = dxgiFormat;
+    if (isDepth) {
+        clearValue.Format = toD3DDepthTextureDSVFormat(m_format);
+        clearValue.DepthStencil.Depth = 1.0f;
+        clearValue.DepthStencil.Stencil = 0;
+    }
+    ID3D12Resource *resource = nullptr;
+    D3D12MA::Allocation *allocation = nullptr;
+    HRESULT hr = rhiD->vma.createResource(D3D12_HEAP_TYPE_DEFAULT,
+                                          &resourceDesc,
+                                          D3D12_RESOURCE_STATE_COMMON,
+                                          needsOptimizedClearValueSpecified ? &clearValue : nullptr,
+                                          &allocation,
+                                          __uuidof(ID3D12Resource),
+                                          reinterpret_cast<void **>(&resource));
+    if (FAILED(hr)) {
+        qWarning("Failed to create texture: '%s'"
+                 " Dim was %d Size was %ux%u Depth/ArraySize was %u MipLevels was %u Format was %d Sample count was %d",
+                 qPrintable(QSystemError::windowsComString(hr)),
+                 int(resourceDesc.Dimension),
+                 uint(resourceDesc.Width),
+                 uint(resourceDesc.Height),
+                 uint(resourceDesc.DepthOrArraySize),
+                 uint(resourceDesc.MipLevels),
+                 int(resourceDesc.Format),
+                 int(resourceDesc.SampleDesc.Count));
+        return false;
+    }
+
+    handle = QD3D12Resource::addToPool(&rhiD->resourcePool, resource, D3D12_RESOURCE_STATE_COMMON, allocation);
+
+    if (!finishCreate())
+        return false;
+
+    rhiD->registerResource(this);
+    return true;
+}
+
+bool QD3D12Texture::createFrom(QRhiTexture::NativeTexture src)
+{
+    if (!src.object)
+        return false;
+
+    if (!prepareCreate())
+        return false;
+
+    ID3D12Resource *resource = reinterpret_cast<ID3D12Resource *>(src.object);
+    D3D12_RESOURCE_STATES state = D3D12_RESOURCE_STATES(src.layout);
+
+    QRHI_RES_RHI(QRhiD3D12);
+    handle = QD3D12Resource::addNonOwningToPool(&rhiD->resourcePool, resource, state);
+
+    if (!finishCreate())
+        return false;
+
+    rhiD->registerResource(this);
+    return true;
+}
+
+QRhiTexture::NativeTexture QD3D12Texture::nativeTexture()
+{
+    QRHI_RES_RHI(QRhiD3D12);
+    if (QD3D12Resource *res = rhiD->resourcePool.lookupRef(handle))
+        return { quint64(res->resource), int(res->state) };
+
+    return {};
+}
+
+void QD3D12Texture::setNativeLayout(int layout)
+{
+    QRHI_RES_RHI(QRhiD3D12);
+    if (QD3D12Resource *res = rhiD->resourcePool.lookupRef(handle))
+        res->state = D3D12_RESOURCE_STATES(layout);
+}
+
+QD3D12Sampler::QD3D12Sampler(QRhiImplementation *rhi, Filter magFilter, Filter minFilter, Filter mipmapMode,
+                             AddressMode u, AddressMode v, AddressMode w)
+    : QRhiSampler(rhi, magFilter, minFilter, mipmapMode, u, v, w)
+{
+}
+
+QD3D12Sampler::~QD3D12Sampler()
+{
+    destroy();
+}
+
+void QD3D12Sampler::destroy()
+{
+    shaderVisibleDescriptor = {};
+
+    QRHI_RES_RHI(QRhiD3D12);
+    if (rhiD)
+        rhiD->unregisterResource(this);
+}
+
+static inline D3D12_FILTER toD3DFilter(QRhiSampler::Filter minFilter, QRhiSampler::Filter magFilter, QRhiSampler::Filter mipFilter)
+{
+    if (minFilter == QRhiSampler::Nearest) {
+        if (magFilter == QRhiSampler::Nearest) {
+            if (mipFilter == QRhiSampler::Linear)
+                return D3D12_FILTER_MIN_MAG_POINT_MIP_LINEAR;
+            else
+                return D3D12_FILTER_MIN_MAG_MIP_POINT;
+        } else {
+            if (mipFilter == QRhiSampler::Linear)
+                return D3D12_FILTER_MIN_POINT_MAG_MIP_LINEAR;
+            else
+                return D3D12_FILTER_MIN_POINT_MAG_LINEAR_MIP_POINT;
+        }
+    } else {
+        if (magFilter == QRhiSampler::Nearest) {
+            if (mipFilter == QRhiSampler::Linear)
+                return D3D12_FILTER_MIN_LINEAR_MAG_POINT_MIP_LINEAR;
+            else
+                return D3D12_FILTER_MIN_LINEAR_MAG_MIP_POINT;
+        } else {
+            if (mipFilter == QRhiSampler::Linear)
+                return D3D12_FILTER_MIN_MAG_MIP_LINEAR;
+            else
+                return D3D12_FILTER_MIN_MAG_LINEAR_MIP_POINT;
+        }
+    }
+    Q_UNREACHABLE_RETURN(D3D12_FILTER_MIN_MAG_MIP_LINEAR);
+}
+
+static inline D3D12_TEXTURE_ADDRESS_MODE toD3DAddressMode(QRhiSampler::AddressMode m)
+{
+    switch (m) {
+    case QRhiSampler::Repeat:
+        return D3D12_TEXTURE_ADDRESS_MODE_WRAP;
+    case QRhiSampler::ClampToEdge:
+        return D3D12_TEXTURE_ADDRESS_MODE_CLAMP;
+    case QRhiSampler::Mirror:
+        return D3D12_TEXTURE_ADDRESS_MODE_MIRROR;
+    }
+    Q_UNREACHABLE_RETURN(D3D12_TEXTURE_ADDRESS_MODE_CLAMP);
+}
+
+static inline D3D12_COMPARISON_FUNC toD3DTextureComparisonFunc(QRhiSampler::CompareOp op)
+{
+    switch (op) {
+    case QRhiSampler::Never:
+        return D3D12_COMPARISON_FUNC_NEVER;
+    case QRhiSampler::Less:
+        return D3D12_COMPARISON_FUNC_LESS;
+    case QRhiSampler::Equal:
+        return D3D12_COMPARISON_FUNC_EQUAL;
+    case QRhiSampler::LessOrEqual:
+        return D3D12_COMPARISON_FUNC_LESS_EQUAL;
+    case QRhiSampler::Greater:
+        return D3D12_COMPARISON_FUNC_GREATER;
+    case QRhiSampler::NotEqual:
+        return D3D12_COMPARISON_FUNC_NOT_EQUAL;
+    case QRhiSampler::GreaterOrEqual:
+        return D3D12_COMPARISON_FUNC_GREATER_EQUAL;
+    case QRhiSampler::Always:
+        return D3D12_COMPARISON_FUNC_ALWAYS;
+    }
+    Q_UNREACHABLE_RETURN(D3D12_COMPARISON_FUNC_NEVER);
+}
+
+bool QD3D12Sampler::create()
+{
+    desc = {};
+    desc.Filter = toD3DFilter(m_minFilter, m_magFilter, m_mipmapMode);
+    if (m_compareOp != Never)
+        desc.Filter = D3D12_FILTER(desc.Filter | 0x80);
+    desc.AddressU = toD3DAddressMode(m_addressU);
+    desc.AddressV = toD3DAddressMode(m_addressV);
+    desc.AddressW = toD3DAddressMode(m_addressW);
+    desc.MaxAnisotropy = 1.0f;
+    desc.ComparisonFunc = toD3DTextureComparisonFunc(m_compareOp);
+    desc.MaxLOD = m_mipmapMode == None ? 0.0f : 10000.0f;
+
+    QRHI_RES_RHI(QRhiD3D12);
+    rhiD->registerResource(this, false);
+    return true;
+}
+
+QD3D12Descriptor QD3D12Sampler::lookupOrCreateShaderVisibleDescriptor()
+{
+    if (!shaderVisibleDescriptor.isValid()) {
+        QRHI_RES_RHI(QRhiD3D12);
+        shaderVisibleDescriptor = rhiD->samplerMgr.getShaderVisibleDescriptor(desc);
+    }
+    return shaderVisibleDescriptor;
+}
+
+QD3D12TextureRenderTarget::QD3D12TextureRenderTarget(QRhiImplementation *rhi,
+                                                     const QRhiTextureRenderTargetDescription &desc,
+                                                     Flags flags)
+    : QRhiTextureRenderTarget(rhi, desc, flags),
+      d(rhi)
+{
+}
+
+QD3D12TextureRenderTarget::~QD3D12TextureRenderTarget()
+{
+    destroy();
+}
+
+void QD3D12TextureRenderTarget::destroy()
+{
+    if (!rtv[0].isValid() && !dsv.isValid())
+        return;
+
+    QRHI_RES_RHI(QRhiD3D12);
+    if (dsv.isValid()) {
+        if (ownsDsv && rhiD)
+            rhiD->releaseQueue.deferredReleaseViews(&rhiD->dsvPool, dsv, 1);
+        dsv = {};
+    }
+
+    for (int i = 0; i < QD3D12RenderTargetData::MAX_COLOR_ATTACHMENTS; ++i) {
+        if (rtv[i].isValid()) {
+            if (ownsRtv[i] && rhiD)
+                rhiD->releaseQueue.deferredReleaseViews(&rhiD->rtvPool, rtv[i], 1);
+            rtv[i] = {};
+        }
+    }
+
+    if (rhiD)
+        rhiD->unregisterResource(this);
+}
+
+QRhiRenderPassDescriptor *QD3D12TextureRenderTarget::newCompatibleRenderPassDescriptor()
+{
+    // not yet built so cannot rely on data computed in create()
+
+    QD3D12RenderPassDescriptor *rpD = new QD3D12RenderPassDescriptor(m_rhi);
+
+    rpD->colorAttachmentCount = 0;
+    for (auto it = m_desc.cbeginColorAttachments(), itEnd = m_desc.cendColorAttachments(); it != itEnd; ++it) {
+        QD3D12Texture *texD = QRHI_RES(QD3D12Texture, it->texture());
+        QD3D12RenderBuffer *rbD = QRHI_RES(QD3D12RenderBuffer, it->renderBuffer());
+        if (texD)
+            rpD->colorFormat[rpD->colorAttachmentCount] = texD->dxgiFormat;
+        else if (rbD)
+            rpD->colorFormat[rpD->colorAttachmentCount] = rbD->dxgiFormat;
+        rpD->colorAttachmentCount += 1;
+    }
+
+    rpD->hasDepthStencil = false;
+    if (m_desc.depthStencilBuffer()) {
+        rpD->hasDepthStencil = true;
+        rpD->dsFormat = QD3D12RenderBuffer::DS_FORMAT;
+    } else if (m_desc.depthTexture()) {
+        QD3D12Texture *depthTexD = QRHI_RES(QD3D12Texture, m_desc.depthTexture());
+        rpD->hasDepthStencil = true;
+        rpD->dsFormat = toD3DDepthTextureDSVFormat(depthTexD->format()); // cannot be a typeless format
+    }
+
+    rpD->updateSerializedFormat();
+
+    QRHI_RES_RHI(QRhiD3D12);
+    rhiD->registerResource(rpD);
+    return rpD;
+}
+
+bool QD3D12TextureRenderTarget::create()
+{
+    if (rtv[0].isValid() || dsv.isValid())
+        destroy();
+
+    QRHI_RES_RHI(QRhiD3D12);
+    Q_ASSERT(m_desc.colorAttachmentCount() > 0 || m_desc.depthTexture());
+    Q_ASSERT(!m_desc.depthStencilBuffer() || !m_desc.depthTexture());
+    const bool hasDepthStencil = m_desc.depthStencilBuffer() || m_desc.depthTexture();
+    d.colorAttCount = 0;
+    int attIndex = 0;
+
+    for (auto it = m_desc.cbeginColorAttachments(), itEnd = m_desc.cendColorAttachments(); it != itEnd; ++it, ++attIndex) {
+        d.colorAttCount += 1;
+        const QRhiColorAttachment &colorAtt(*it);
+        QRhiTexture *texture = colorAtt.texture();
+        QRhiRenderBuffer *rb = colorAtt.renderBuffer();
+        Q_ASSERT(texture || rb);
+        if (texture) {
+            QD3D12Texture *texD = QRHI_RES(QD3D12Texture, texture);
+            QD3D12Resource *res = rhiD->resourcePool.lookupRef(texD->handle);
+            if (!res) {
+                qWarning("Could not look up texture handle for render target");
+                return false;
+            }
+            D3D12_RENDER_TARGET_VIEW_DESC rtvDesc = {};
+            rtvDesc.Format = toD3DTextureFormat(texD->format(), texD->flags());
+            if (texD->flags().testFlag(QRhiTexture::CubeMap)) {
+                rtvDesc.ViewDimension = D3D12_RTV_DIMENSION_TEXTURE2DARRAY;
+                rtvDesc.Texture2DArray.MipSlice = UINT(colorAtt.level());
+                rtvDesc.Texture2DArray.FirstArraySlice = UINT(colorAtt.layer());
+                rtvDesc.Texture2DArray.ArraySize = 1;
+            } else if (texD->flags().testFlag(QRhiTexture::OneDimensional)) {
+                if (texD->flags().testFlag(QRhiTexture::TextureArray)) {
+                    rtvDesc.ViewDimension = D3D12_RTV_DIMENSION_TEXTURE1DARRAY;
+                    rtvDesc.Texture1DArray.MipSlice = UINT(colorAtt.level());
+                    rtvDesc.Texture1DArray.FirstArraySlice = UINT(colorAtt.layer());
+                    rtvDesc.Texture1DArray.ArraySize = 1;
+                } else {
+                    rtvDesc.ViewDimension = D3D12_RTV_DIMENSION_TEXTURE1D;
+                    rtvDesc.Texture1D.MipSlice = UINT(colorAtt.level());
+                }
+            } else if (texD->flags().testFlag(QRhiTexture::TextureArray)) {
+                if (texD->sampleDesc.Count > 1) {
+                    rtvDesc.ViewDimension = D3D12_RTV_DIMENSION_TEXTURE2DMSARRAY;
+                    rtvDesc.Texture2DMSArray.FirstArraySlice = UINT(colorAtt.layer());
+                    rtvDesc.Texture2DMSArray.ArraySize = 1;
+                } else {
+                    rtvDesc.ViewDimension = D3D12_RTV_DIMENSION_TEXTURE2DARRAY;
+                    rtvDesc.Texture2DArray.MipSlice = UINT(colorAtt.level());
+                    rtvDesc.Texture2DArray.FirstArraySlice = UINT(colorAtt.layer());
+                    rtvDesc.Texture2DArray.ArraySize = 1;
+                }
+            } else if (texD->flags().testFlag(QRhiTexture::ThreeDimensional)) {
+                rtvDesc.ViewDimension = D3D12_RTV_DIMENSION_TEXTURE3D;
+                rtvDesc.Texture3D.MipSlice = UINT(colorAtt.level());
+                rtvDesc.Texture3D.FirstWSlice = UINT(colorAtt.layer());
+                rtvDesc.Texture3D.WSize = 1;
+            } else {
+                if (texD->sampleDesc.Count > 1) {
+                    rtvDesc.ViewDimension = D3D12_RTV_DIMENSION_TEXTURE2DMS;
+                } else {
+                    rtvDesc.ViewDimension = D3D12_RTV_DIMENSION_TEXTURE2D;
+                    rtvDesc.Texture2D.MipSlice = UINT(colorAtt.level());
+                }
+            }
+            rtv[attIndex] = rhiD->rtvPool.allocate(1);
+            if (!rtv[attIndex].isValid()) {
+                qWarning("Failed to allocate RTV for texture render target");
+                return false;
+            }
+            rhiD->dev->CreateRenderTargetView(res->resource, &rtvDesc, rtv[attIndex].cpuHandle);
+            ownsRtv[attIndex] = true;
+            if (attIndex == 0) {
+                d.pixelSize = rhiD->q->sizeForMipLevel(colorAtt.level(), texD->pixelSize());
+                d.sampleCount = int(texD->sampleDesc.Count);
+            }
+        } else if (rb) {
+            QD3D12RenderBuffer *rbD = QRHI_RES(QD3D12RenderBuffer, rb);
+            ownsRtv[attIndex] = false;
+            rtv[attIndex] = rbD->rtv;
+            if (attIndex == 0) {
+                d.pixelSize = rbD->pixelSize();
+                d.sampleCount = int(rbD->sampleDesc.Count);
+            }
+        }
+    }
+
+    d.dpr = 1;
+
+    if (hasDepthStencil) {
+        if (m_desc.depthTexture()) {
+            ownsDsv = true;
+            QD3D12Texture *depthTexD = QRHI_RES(QD3D12Texture, m_desc.depthTexture());
+            QD3D12Resource *res = rhiD->resourcePool.lookupRef(depthTexD->handle);
+            if (!res) {
+                qWarning("Could not look up depth texture handle");
+                return false;
+            }
+            D3D12_DEPTH_STENCIL_VIEW_DESC dsvDesc = {};
+            dsvDesc.Format = toD3DDepthTextureDSVFormat(depthTexD->format());
+            dsvDesc.ViewDimension = depthTexD->sampleDesc.Count > 1 ? D3D12_DSV_DIMENSION_TEXTURE2DMS
+                                                                    : D3D12_DSV_DIMENSION_TEXTURE2D;
+            if (depthTexD->flags().testFlag(QRhiTexture::TextureArray)) {
+                if (depthTexD->sampleDesc.Count > 1) {
+                    dsvDesc.ViewDimension = D3D12_DSV_DIMENSION_TEXTURE2DMSARRAY;
+                    if (depthTexD->arrayRangeStart() >= 0 && depthTexD->arrayRangeLength() >= 0) {
+                        dsvDesc.Texture2DMSArray.FirstArraySlice = UINT(depthTexD->arrayRangeStart());
+                        dsvDesc.Texture2DMSArray.ArraySize = UINT(depthTexD->arrayRangeLength());
+                    } else {
+                        dsvDesc.Texture2DMSArray.FirstArraySlice = 0;
+                        dsvDesc.Texture2DMSArray.ArraySize = UINT(qMax(0, depthTexD->arraySize()));
+                    }
+                } else {
+                    dsvDesc.ViewDimension = D3D12_DSV_DIMENSION_TEXTURE2DARRAY;
+                    if (depthTexD->arrayRangeStart() >= 0 && depthTexD->arrayRangeLength() >= 0) {
+                        dsvDesc.Texture2DArray.FirstArraySlice = UINT(depthTexD->arrayRangeStart());
+                        dsvDesc.Texture2DArray.ArraySize = UINT(depthTexD->arrayRangeLength());
+                    } else {
+                        dsvDesc.Texture2DArray.FirstArraySlice = 0;
+                        dsvDesc.Texture2DArray.ArraySize = UINT(qMax(0, depthTexD->arraySize()));
+                    }
+                }
+            }
+            dsv = rhiD->dsvPool.allocate(1);
+            if (!dsv.isValid()) {
+                qWarning("Failed to allocate DSV for texture render target");
+                return false;
+            }
+            rhiD->dev->CreateDepthStencilView(res->resource, &dsvDesc, dsv.cpuHandle);
+            if (d.colorAttCount == 0) {
+                d.pixelSize = depthTexD->pixelSize();
+                d.sampleCount = int(depthTexD->sampleDesc.Count);
+            }
+        } else {
+            ownsDsv = false;
+            QD3D12RenderBuffer *depthRbD = QRHI_RES(QD3D12RenderBuffer, m_desc.depthStencilBuffer());
+            dsv = depthRbD->dsv;
+            if (d.colorAttCount == 0) {
+                d.pixelSize = m_desc.depthStencilBuffer()->pixelSize();
+                d.sampleCount = int(depthRbD->sampleDesc.Count);
+            }
+        }
+        d.dsAttCount = 1;
+    } else {
+        d.dsAttCount = 0;
+    }
+
+    D3D12_CPU_DESCRIPTOR_HANDLE nullDescHandle = { 0 };
+    for (int i = 0; i < QD3D12RenderTargetData::MAX_COLOR_ATTACHMENTS; ++i)
+        d.rtv[i] = i < d.colorAttCount ? rtv[i].cpuHandle : nullDescHandle;
+    d.dsv = dsv.cpuHandle;
+    d.rp = QRHI_RES(QD3D12RenderPassDescriptor, m_renderPassDesc);
+
+    QRhiRenderTargetAttachmentTracker::updateResIdList<QD3D12Texture, QD3D12RenderBuffer>(m_desc, &d.currentResIdList);
+
+    rhiD->registerResource(this);
+    return true;
+}
+
+QSize QD3D12TextureRenderTarget::pixelSize() const
+{
+    if (!QRhiRenderTargetAttachmentTracker::isUpToDate<QD3D12Texture, QD3D12RenderBuffer>(m_desc, d.currentResIdList))
+        const_cast<QD3D12TextureRenderTarget *>(this)->create();
+
+    return d.pixelSize;
+}
+
+float QD3D12TextureRenderTarget::devicePixelRatio() const
+{
+    return d.dpr;
+}
+
+int QD3D12TextureRenderTarget::sampleCount() const
+{
+    return d.sampleCount;
+}
+
+QD3D12ShaderResourceBindings::QD3D12ShaderResourceBindings(QRhiImplementation *rhi)
+    : QRhiShaderResourceBindings(rhi)
+{
+}
+
+QD3D12ShaderResourceBindings::~QD3D12ShaderResourceBindings()
+{
+    destroy();
+}
+
+void QD3D12ShaderResourceBindings::destroy()
+{
+    sortedBindings.clear();
+
+    QRHI_RES_RHI(QRhiD3D12);
+    if (rhiD)
+        rhiD->unregisterResource(this);
+}
+
+bool QD3D12ShaderResourceBindings::create()
+{
+    if (!sortedBindings.isEmpty())
+        destroy();
+
+    QRHI_RES_RHI(QRhiD3D12);
+    if (!rhiD->sanityCheckShaderResourceBindings(this))
+        return false;
+
+    rhiD->updateLayoutDesc(this);
+
+    std::copy(m_bindings.cbegin(), m_bindings.cend(), std::back_inserter(sortedBindings));
+    std::sort(sortedBindings.begin(), sortedBindings.end(), QRhiImplementation::sortedBindingLessThan);
+
+    hasDynamicOffset = false;
+    for (const QRhiShaderResourceBinding &b : sortedBindings) {
+        const QRhiShaderResourceBinding::Data *bd = QRhiImplementation::shaderResourceBindingData(b);
+        if (bd->type == QRhiShaderResourceBinding::UniformBuffer && bd->u.ubuf.hasDynamicOffset) {
+            hasDynamicOffset = true;
+            break;
+        }
+    }
+
+    // The root signature is not part of the srb. Unintuitive, but the shader
+    // translation pipeline ties our hands: as long as the per-shader (so per
+    // stage!) nativeResourceBindingMap exist, meaning f.ex. that a SPIR-V
+    // combined image sampler binding X passed in here may map to the tY and sY
+    // HLSL registers, where Y is known only once the mapping table from the
+    // shader is looked up. Creating a root parameters at this stage is
+    // therefore impossible.
+
+    generation += 1;
+    rhiD->registerResource(this, false);
+    return true;
+}
+
+void QD3D12ShaderResourceBindings::updateResources(UpdateFlags flags)
+{
+    sortedBindings.clear();
+    std::copy(m_bindings.cbegin(), m_bindings.cend(), std::back_inserter(sortedBindings));
+    if (!flags.testFlag(BindingsAreSorted))
+        std::sort(sortedBindings.begin(), sortedBindings.end(), QRhiImplementation::sortedBindingLessThan);
+
+    generation += 1;
+}
+
+// Accessing the QRhiBuffer/Texture/Sampler resources must be avoided in the
+// callbacks; that would only be possible if the srb had those specified, and
+// that's not required at the time of srb and pipeline create() time, and
+// createRootSignature is called from the pipeline create().
+
+void QD3D12ShaderResourceBindings::visitUniformBuffer(QD3D12Stage s,
+                                                      const QRhiShaderResourceBinding::Data::UniformBufferData &,
+                                                      int shaderRegister,
+                                                      int)
+{
+    D3D12_ROOT_PARAMETER1 rootParam = {};
+    rootParam.ParameterType = D3D12_ROOT_PARAMETER_TYPE_CBV;
+    rootParam.ShaderVisibility = qd3d12_stageToVisibility(s);
+    rootParam.Descriptor.ShaderRegister = shaderRegister;
+    visitorData.cbParams[s].append(rootParam);
+}
+
+void QD3D12ShaderResourceBindings::visitTexture(QD3D12Stage s,
+                                                const QRhiShaderResourceBinding::TextureAndSampler &,
+                                                int shaderRegister)
+{
+    D3D12_DESCRIPTOR_RANGE1 range = {};
+    range.RangeType = D3D12_DESCRIPTOR_RANGE_TYPE_SRV;
+    range.NumDescriptors = 1;
+    range.BaseShaderRegister = shaderRegister;
+    range.OffsetInDescriptorsFromTableStart = visitorData.currentSrvRangeOffset[s];
+    visitorData.currentSrvRangeOffset[s] += 1;
+    visitorData.srvRanges[s].append(range);
+    if (visitorData.srvRanges[s].count() == 1) {
+        visitorData.srvTables[s].ParameterType = D3D12_ROOT_PARAMETER_TYPE_DESCRIPTOR_TABLE;
+        visitorData.srvTables[s].ShaderVisibility = qd3d12_stageToVisibility(s);
+    }
+}
+
+void QD3D12ShaderResourceBindings::visitSampler(QD3D12Stage s,
+                                                const QRhiShaderResourceBinding::TextureAndSampler &,
+                                                int shaderRegister)
+{
+    // Unlike SRVs and UAVs, samplers are handled so that each sampler becomes
+    // a root parameter with its own descriptor table.
+
+    int &rangeStoreIdx(visitorData.samplerRangeHeads[s]);
+    if (rangeStoreIdx == 16) {
+        qWarning("Sampler count in QD3D12Stage %d exceeds the limit of 16, this is disallowed by QRhi", s);
+        return;
+    }
+    D3D12_DESCRIPTOR_RANGE1 range = {};
+    range.RangeType = D3D12_DESCRIPTOR_RANGE_TYPE_SAMPLER;
+    range.NumDescriptors = 1;
+    range.BaseShaderRegister = shaderRegister;
+    visitorData.samplerRanges[s][rangeStoreIdx] = range;
+    D3D12_ROOT_PARAMETER1 param = {};
+    param.ParameterType = D3D12_ROOT_PARAMETER_TYPE_DESCRIPTOR_TABLE;
+    param.ShaderVisibility = qd3d12_stageToVisibility(s);
+    param.DescriptorTable.NumDescriptorRanges = 1;
+    param.DescriptorTable.pDescriptorRanges = &visitorData.samplerRanges[s][rangeStoreIdx];
+    rangeStoreIdx += 1;
+    visitorData.samplerTables[s].append(param);
+}
+
+void QD3D12ShaderResourceBindings::visitStorageBuffer(QD3D12Stage s,
+                                                      const QRhiShaderResourceBinding::Data::StorageBufferData &,
+                                                      QD3D12ShaderResourceVisitor::StorageOp,
+                                                      int shaderRegister)
+{
+    D3D12_DESCRIPTOR_RANGE1 range = {};
+    range.RangeType = D3D12_DESCRIPTOR_RANGE_TYPE_UAV;
+    range.NumDescriptors = 1;
+    range.BaseShaderRegister = shaderRegister;
+    range.OffsetInDescriptorsFromTableStart = visitorData.currentUavRangeOffset[s];
+    visitorData.currentUavRangeOffset[s] += 1;
+    visitorData.uavRanges[s].append(range);
+    if (visitorData.uavRanges[s].count() == 1) {
+        visitorData.uavTables[s].ParameterType = D3D12_ROOT_PARAMETER_TYPE_DESCRIPTOR_TABLE;
+        visitorData.uavTables[s].ShaderVisibility = qd3d12_stageToVisibility(s);
+    }
+}
+
+void QD3D12ShaderResourceBindings::visitStorageImage(QD3D12Stage s,
+                                                     const QRhiShaderResourceBinding::Data::StorageImageData &,
+                                                     QD3D12ShaderResourceVisitor::StorageOp,
+                                                     int shaderRegister)
+{
+    D3D12_DESCRIPTOR_RANGE1 range = {};
+    range.RangeType = D3D12_DESCRIPTOR_RANGE_TYPE_UAV;
+    range.NumDescriptors = 1;
+    range.BaseShaderRegister = shaderRegister;
+    range.OffsetInDescriptorsFromTableStart = visitorData.currentUavRangeOffset[s];
+    visitorData.currentUavRangeOffset[s] += 1;
+    visitorData.uavRanges[s].append(range);
+    if (visitorData.uavRanges[s].count() == 1) {
+        visitorData.uavTables[s].ParameterType = D3D12_ROOT_PARAMETER_TYPE_DESCRIPTOR_TABLE;
+        visitorData.uavTables[s].ShaderVisibility = qd3d12_stageToVisibility(s);
+    }
+}
+
+QD3D12ObjectHandle QD3D12ShaderResourceBindings::createRootSignature(const QD3D12ShaderStageData *stageData,
+                                                                     int stageCount)
+{
+    QRHI_RES_RHI(QRhiD3D12);
+
+    // It's not just that the root signature has to be tied to the pipeline
+    // (cannot just freely create it like e.g. with Vulkan where one just
+    // creates a descriptor layout 1:1 with the QRhiShaderResourceBindings'
+    // data), due to not knowing the shader-specific resource binding mapping
+    // tables at the point of srb creation, but each shader stage may have a
+    // different mapping table. (ugh!)
+    //
+    // Hence we set up everything per-stage, even if it means the root
+    // signature gets unnecessarily big. (note that the magic is in the
+    // ShaderVisibility: even though the register range is the same in the
+    // descriptor tables, the visibility is different)
+
+    QD3D12ShaderResourceVisitor visitor(this, stageData, stageCount);
+
+    visitorData = {};
+
+    using namespace std::placeholders;
+    visitor.uniformBuffer = std::bind(&QD3D12ShaderResourceBindings::visitUniformBuffer, this, _1, _2, _3, _4);
+    visitor.texture = std::bind(&QD3D12ShaderResourceBindings::visitTexture, this, _1, _2, _3);
+    visitor.sampler = std::bind(&QD3D12ShaderResourceBindings::visitSampler, this, _1, _2, _3);
+    visitor.storageBuffer = std::bind(&QD3D12ShaderResourceBindings::visitStorageBuffer, this, _1, _2, _3, _4);
+    visitor.storageImage = std::bind(&QD3D12ShaderResourceBindings::visitStorageImage, this, _1, _2, _3, _4);
+
+    visitor.visit();
+
+    // The maximum size of a root signature is 256 bytes, where a descriptor
+    // table is 4, a root descriptor (e.g. CBV) is 8. We have 5 stages at most
+    // (or 1 with compute) and a separate descriptor table for SRVs (->
+    // textures) and UAVs (-> storage buffers and images) per stage, plus each
+    // uniform buffer counts as a CBV in the stages it is visible.
+    //
+    // Due to the limited maximum size of a shader-visible sampler heap (2048)
+    // and the potential costly switching of descriptor heaps, each sampler is
+    // declared as a separate root parameter / descriptor table (meaning that
+    // two samplers in the same stage are two parameters and two tables, not
+    // just one). QRhi documents a hard limit of 16 on texture/sampler bindings
+    // in a shader (matching D3D11), so we can hopefully get away with this.
+    //
+    // This means that e.g. a vertex+fragment shader with a uniform buffer
+    // visible in both and one texture+sampler in the fragment shader would
+    // consume 2*8 + 4 + 4 = 24 bytes. This also implies that clients
+    // specifying the minimal stage bit mask for each entry in
+    // QRhiShaderResourceBindings are ideal for this backend since it helps
+    // reducing the chance of hitting the size limit.
+
+    QVarLengthArray<D3D12_ROOT_PARAMETER1, 4> rootParams;
+    for (int s = 0; s < 6; ++s) {
+        if (!visitorData.cbParams[s].isEmpty())
+            rootParams.append(visitorData.cbParams[s].constData(), visitorData.cbParams[s].count());
+    }
+    for (int s = 0; s < 6; ++s) {
+        if (!visitorData.srvRanges[s].isEmpty()) {
+            visitorData.srvTables[s].DescriptorTable.NumDescriptorRanges = visitorData.srvRanges[s].count();
+            visitorData.srvTables[s].DescriptorTable.pDescriptorRanges = visitorData.srvRanges[s].constData();
+            rootParams.append(visitorData.srvTables[s]);
+        }
+    }
+    for (int s = 0; s < 6; ++s) {
+        if (!visitorData.samplerTables[s].isEmpty())
+            rootParams.append(visitorData.samplerTables[s].constData(), visitorData.samplerTables[s].count());
+    }
+    for (int s = 0; s < 6; ++s) {
+        if (!visitorData.uavRanges[s].isEmpty()) {
+            visitorData.uavTables[s].DescriptorTable.NumDescriptorRanges = visitorData.uavRanges[s].count();
+            visitorData.uavTables[s].DescriptorTable.pDescriptorRanges = visitorData.uavRanges[s].constData();
+            rootParams.append(visitorData.uavTables[s]);
+        }
+    }
+
+    D3D12_VERSIONED_ROOT_SIGNATURE_DESC rsDesc = {};
+    rsDesc.Version = D3D_ROOT_SIGNATURE_VERSION_1_1;
+    if (!rootParams.isEmpty()) {
+        rsDesc.Desc_1_1.NumParameters = rootParams.count();
+        rsDesc.Desc_1_1.pParameters = rootParams.constData();
+    }
+
+    UINT rsFlags = 0;
+    for (int stageIdx = 0; stageIdx < stageCount; ++stageIdx) {
+        if (stageData[stageIdx].valid && stageData[stageIdx].stage == VS)
+            rsFlags |= D3D12_ROOT_SIGNATURE_FLAG_ALLOW_INPUT_ASSEMBLER_INPUT_LAYOUT;
+    }
+    rsDesc.Desc_1_1.Flags = D3D12_ROOT_SIGNATURE_FLAGS(rsFlags);
+
+    if (!myD3D12SerializeVersionedRootSignature)
+        myD3D12SerializeVersionedRootSignature =
+        (D3D12SerializeVersionedRootSignatureFunc)::GetProcAddress(::GetModuleHandle(L"D3d12"), "D3D12SerializeVersionedRootSignature");
+
+    if (!myD3D12SerializeVersionedRootSignature)
+        return {};
+
+    ID3DBlob *signature = nullptr;
+    HRESULT hr = myD3D12SerializeVersionedRootSignature(&rsDesc, &signature, nullptr);
+    if (FAILED(hr)) {
+        qWarning("Failed to serialize root signature: %s", qPrintable(QSystemError::windowsComString(hr)));
+        return {};
+    }
+    ID3D12RootSignature *rootSig = nullptr;
+    hr = rhiD->dev->CreateRootSignature(0,
+                                        signature->GetBufferPointer(),
+                                        signature->GetBufferSize(),
+                                        __uuidof(ID3D12RootSignature),
+                                        reinterpret_cast<void **>(&rootSig));
+    signature->Release();
+    if (FAILED(hr)) {
+        qWarning("Failed to create root signature: %s", qPrintable(QSystemError::windowsComString(hr)));
+        return {};
+    }
+
+    return QD3D12RootSignature::addToPool(&rhiD->rootSignaturePool, rootSig);
+}
+
+// For now we mirror exactly what's done in the D3D11 backend, meaning we use
+// the old shader compiler (so like fxc, not dxc) to generate shader model 5.0
+// output. Some day this should be moved to the new compiler and DXIL.
+
+static inline void makeHlslTargetString(char target[7], const char stage[3], int version)
+{
+    const int smMajor = version / 10;
+    const int smMinor = version % 10;
+    target[0] = stage[0];
+    target[1] = stage[1];
+    target[2] = '_';
+    target[3] = '0' + smMajor;
+    target[4] = '_';
+    target[5] = '0' + smMinor;
+    target[6] = '\0';
+}
+
+static QByteArray compileHlslShaderSource(const QShader &shader,
+                                          QShader::Variant shaderVariant,
+                                          UINT flags,
+                                          QString *error,
+                                          QShaderKey *usedShaderKey)
+{
+    // look for SM 6.7, 6.6, .., 5.0
+    const int shaderModelMax = 67;
+    for (int sm = shaderModelMax; sm >= 50; --sm) {
+        for (QShader::Source type : { QShader::DxilShader, QShader::DxbcShader }) {
+            QShaderKey key = { type, sm, shaderVariant };
+            QShaderCode intermediateBytecodeShader = shader.shader(key);
+            if (!intermediateBytecodeShader.shader().isEmpty()) {
+                if (usedShaderKey)
+                    *usedShaderKey = key;
+                return intermediateBytecodeShader.shader();
+            }
+        }
+    }
+
+    QShaderCode hlslSource;
+    QShaderKey key;
+    for (int sm = shaderModelMax; sm >= 50; --sm) {
+        key = { QShader::HlslShader, sm, shaderVariant };
+        hlslSource = shader.shader(key);
+        if (!hlslSource.shader().isEmpty())
+            break;
+    }
+
+    if (hlslSource.shader().isEmpty()) {
+        qWarning() << "No HLSL (shader model 6.7..5.0) code found in baked shader" << shader;
+        return QByteArray();
+    }
+
+    if (usedShaderKey)
+        *usedShaderKey = key;
+
+    char target[7];
+    switch (shader.stage()) {
+    case QShader::VertexStage:
+        makeHlslTargetString(target, "vs", key.sourceVersion().version());
+        break;
+    case QShader::TessellationControlStage:
+        makeHlslTargetString(target, "hs", key.sourceVersion().version());
+        break;
+    case QShader::TessellationEvaluationStage:
+        makeHlslTargetString(target, "ds", key.sourceVersion().version());
+        break;
+    case QShader::GeometryStage:
+        makeHlslTargetString(target, "gs", key.sourceVersion().version());
+        break;
+    case QShader::FragmentStage:
+        makeHlslTargetString(target, "ps", key.sourceVersion().version());
+        break;
+    case QShader::ComputeStage:
+        makeHlslTargetString(target, "cs", key.sourceVersion().version());
+        break;
+    }
+
+    static const pD3DCompile d3dCompile = QRhiD3D::resolveD3DCompile();
+    if (!d3dCompile) {
+        qWarning("Unable to resolve function D3DCompile()");
+        return QByteArray();
+    }
+
+    ID3DBlob *bytecode = nullptr;
+    ID3DBlob *errors = nullptr;
+    HRESULT hr = d3dCompile(hlslSource.shader().constData(), SIZE_T(hlslSource.shader().size()),
+                            nullptr, nullptr, nullptr,
+                            hlslSource.entryPoint().constData(), target, flags, 0, &bytecode, &errors);
+    if (FAILED(hr) || !bytecode) {
+        qWarning("HLSL shader compilation failed: 0x%x", uint(hr));
+        if (errors) {
+            *error = QString::fromUtf8(static_cast<const char *>(errors->GetBufferPointer()),
+                                       int(errors->GetBufferSize()));
+            errors->Release();
+        }
+        return QByteArray();
+    }
+
+    QByteArray result;
+    result.resize(int(bytecode->GetBufferSize()));
+    memcpy(result.data(), bytecode->GetBufferPointer(), size_t(result.size()));
+    bytecode->Release();
+
+    return result;
+}
+
+static inline UINT8 toD3DColorWriteMask(QRhiGraphicsPipeline::ColorMask c)
+{
+    UINT8 f = 0;
+    if (c.testFlag(QRhiGraphicsPipeline::R))
+        f |= D3D12_COLOR_WRITE_ENABLE_RED;
+    if (c.testFlag(QRhiGraphicsPipeline::G))
+        f |= D3D12_COLOR_WRITE_ENABLE_GREEN;
+    if (c.testFlag(QRhiGraphicsPipeline::B))
+        f |= D3D12_COLOR_WRITE_ENABLE_BLUE;
+    if (c.testFlag(QRhiGraphicsPipeline::A))
+        f |= D3D12_COLOR_WRITE_ENABLE_ALPHA;
+    return f;
+}
+
+static inline D3D12_BLEND toD3DBlendFactor(QRhiGraphicsPipeline::BlendFactor f, bool rgb)
+{
+    // SrcBlendAlpha and DstBlendAlpha do not accept *_COLOR. With other APIs
+    // this is handled internally (so that e.g. VK_BLEND_FACTOR_SRC_COLOR is
+    // accepted and is in effect equivalent to VK_BLEND_FACTOR_SRC_ALPHA when
+    // set as an alpha src/dest factor), but for D3D we have to take care of it
+    // ourselves. Hence the rgb argument.
+
+    switch (f) {
+    case QRhiGraphicsPipeline::Zero:
+        return D3D12_BLEND_ZERO;
+    case QRhiGraphicsPipeline::One:
+        return D3D12_BLEND_ONE;
+    case QRhiGraphicsPipeline::SrcColor:
+        return rgb ? D3D12_BLEND_SRC_COLOR : D3D12_BLEND_SRC_ALPHA;
+    case QRhiGraphicsPipeline::OneMinusSrcColor:
+        return rgb ? D3D12_BLEND_INV_SRC_COLOR : D3D12_BLEND_INV_SRC_ALPHA;
+    case QRhiGraphicsPipeline::DstColor:
+        return rgb ? D3D12_BLEND_DEST_COLOR : D3D12_BLEND_DEST_ALPHA;
+    case QRhiGraphicsPipeline::OneMinusDstColor:
+        return rgb ? D3D12_BLEND_INV_DEST_COLOR : D3D12_BLEND_INV_DEST_ALPHA;
+    case QRhiGraphicsPipeline::SrcAlpha:
+        return D3D12_BLEND_SRC_ALPHA;
+    case QRhiGraphicsPipeline::OneMinusSrcAlpha:
+        return D3D12_BLEND_INV_SRC_ALPHA;
+    case QRhiGraphicsPipeline::DstAlpha:
+        return D3D12_BLEND_DEST_ALPHA;
+    case QRhiGraphicsPipeline::OneMinusDstAlpha:
+        return D3D12_BLEND_INV_DEST_ALPHA;
+    case QRhiGraphicsPipeline::ConstantColor:
+    case QRhiGraphicsPipeline::ConstantAlpha:
+        return D3D12_BLEND_BLEND_FACTOR;
+    case QRhiGraphicsPipeline::OneMinusConstantColor:
+    case QRhiGraphicsPipeline::OneMinusConstantAlpha:
+        return D3D12_BLEND_INV_BLEND_FACTOR;
+    case QRhiGraphicsPipeline::SrcAlphaSaturate:
+        return D3D12_BLEND_SRC_ALPHA_SAT;
+    case QRhiGraphicsPipeline::Src1Color:
+        return rgb ? D3D12_BLEND_SRC1_COLOR : D3D12_BLEND_SRC1_ALPHA;
+    case QRhiGraphicsPipeline::OneMinusSrc1Color:
+        return rgb ? D3D12_BLEND_INV_SRC1_COLOR : D3D12_BLEND_INV_SRC1_ALPHA;
+    case QRhiGraphicsPipeline::Src1Alpha:
+        return D3D12_BLEND_SRC1_ALPHA;
+    case QRhiGraphicsPipeline::OneMinusSrc1Alpha:
+        return D3D12_BLEND_INV_SRC1_ALPHA;
+    }
+    Q_UNREACHABLE_RETURN(D3D12_BLEND_ZERO);
+}
+
+static inline D3D12_BLEND_OP toD3DBlendOp(QRhiGraphicsPipeline::BlendOp op)
+{
+    switch (op) {
+    case QRhiGraphicsPipeline::Add:
+        return D3D12_BLEND_OP_ADD;
+    case QRhiGraphicsPipeline::Subtract:
+        return D3D12_BLEND_OP_SUBTRACT;
+    case QRhiGraphicsPipeline::ReverseSubtract:
+        return D3D12_BLEND_OP_REV_SUBTRACT;
+    case QRhiGraphicsPipeline::Min:
+        return D3D12_BLEND_OP_MIN;
+    case QRhiGraphicsPipeline::Max:
+        return D3D12_BLEND_OP_MAX;
+    }
+    Q_UNREACHABLE_RETURN(D3D12_BLEND_OP_ADD);
+}
+
+static inline D3D12_CULL_MODE toD3DCullMode(QRhiGraphicsPipeline::CullMode c)
+{
+    switch (c) {
+    case QRhiGraphicsPipeline::None:
+        return D3D12_CULL_MODE_NONE;
+    case QRhiGraphicsPipeline::Front:
+        return D3D12_CULL_MODE_FRONT;
+    case QRhiGraphicsPipeline::Back:
+        return D3D12_CULL_MODE_BACK;
+    }
+    Q_UNREACHABLE_RETURN(D3D12_CULL_MODE_NONE);
+}
+
+static inline D3D12_FILL_MODE toD3DFillMode(QRhiGraphicsPipeline::PolygonMode mode)
+{
+    switch (mode) {
+    case QRhiGraphicsPipeline::Fill:
+        return D3D12_FILL_MODE_SOLID;
+    case QRhiGraphicsPipeline::Line:
+        return D3D12_FILL_MODE_WIREFRAME;
+    }
+    Q_UNREACHABLE_RETURN(D3D12_FILL_MODE_SOLID);
+}
+
+static inline D3D12_COMPARISON_FUNC toD3DCompareOp(QRhiGraphicsPipeline::CompareOp op)
+{
+    switch (op) {
+    case QRhiGraphicsPipeline::Never:
+        return D3D12_COMPARISON_FUNC_NEVER;
+    case QRhiGraphicsPipeline::Less:
+        return D3D12_COMPARISON_FUNC_LESS;
+    case QRhiGraphicsPipeline::Equal:
+        return D3D12_COMPARISON_FUNC_EQUAL;
+    case QRhiGraphicsPipeline::LessOrEqual:
+        return D3D12_COMPARISON_FUNC_LESS_EQUAL;
+    case QRhiGraphicsPipeline::Greater:
+        return D3D12_COMPARISON_FUNC_GREATER;
+    case QRhiGraphicsPipeline::NotEqual:
+        return D3D12_COMPARISON_FUNC_NOT_EQUAL;
+    case QRhiGraphicsPipeline::GreaterOrEqual:
+        return D3D12_COMPARISON_FUNC_GREATER_EQUAL;
+    case QRhiGraphicsPipeline::Always:
+        return D3D12_COMPARISON_FUNC_ALWAYS;
+    }
+    Q_UNREACHABLE_RETURN(D3D12_COMPARISON_FUNC_ALWAYS);
+}
+
+static inline D3D12_STENCIL_OP toD3DStencilOp(QRhiGraphicsPipeline::StencilOp op)
+{
+    switch (op) {
+    case QRhiGraphicsPipeline::StencilZero:
+        return D3D12_STENCIL_OP_ZERO;
+    case QRhiGraphicsPipeline::Keep:
+        return D3D12_STENCIL_OP_KEEP;
+    case QRhiGraphicsPipeline::Replace:
+        return D3D12_STENCIL_OP_REPLACE;
+    case QRhiGraphicsPipeline::IncrementAndClamp:
+        return D3D12_STENCIL_OP_INCR_SAT;
+    case QRhiGraphicsPipeline::DecrementAndClamp:
+        return D3D12_STENCIL_OP_DECR_SAT;
+    case QRhiGraphicsPipeline::Invert:
+        return D3D12_STENCIL_OP_INVERT;
+    case QRhiGraphicsPipeline::IncrementAndWrap:
+        return D3D12_STENCIL_OP_INCR;
+    case QRhiGraphicsPipeline::DecrementAndWrap:
+        return D3D12_STENCIL_OP_DECR;
+    }
+    Q_UNREACHABLE_RETURN(D3D12_STENCIL_OP_KEEP);
+}
+
+static inline D3D12_PRIMITIVE_TOPOLOGY toD3DTopology(QRhiGraphicsPipeline::Topology t, int patchControlPointCount)
+{
+    switch (t) {
+    case QRhiGraphicsPipeline::Triangles:
+        return D3D_PRIMITIVE_TOPOLOGY_TRIANGLELIST;
+    case QRhiGraphicsPipeline::TriangleStrip:
+        return D3D_PRIMITIVE_TOPOLOGY_TRIANGLESTRIP;
+    case QRhiGraphicsPipeline::TriangleFan:
+        qWarning("Triangle fans are not supported with D3D");
+        return D3D_PRIMITIVE_TOPOLOGY_TRIANGLESTRIP;
+    case QRhiGraphicsPipeline::Lines:
+        return D3D_PRIMITIVE_TOPOLOGY_LINELIST;
+    case QRhiGraphicsPipeline::LineStrip:
+        return D3D_PRIMITIVE_TOPOLOGY_LINESTRIP;
+    case QRhiGraphicsPipeline::Points:
+        return D3D_PRIMITIVE_TOPOLOGY_POINTLIST;
+    case QRhiGraphicsPipeline::Patches:
+        Q_ASSERT(patchControlPointCount >= 1 && patchControlPointCount <= 32);
+        return D3D_PRIMITIVE_TOPOLOGY(D3D_PRIMITIVE_TOPOLOGY_1_CONTROL_POINT_PATCHLIST + (patchControlPointCount - 1));
+    }
+    Q_UNREACHABLE_RETURN(D3D_PRIMITIVE_TOPOLOGY_TRIANGLELIST);
+}
+
+static inline D3D12_PRIMITIVE_TOPOLOGY_TYPE toD3DTopologyType(QRhiGraphicsPipeline::Topology t)
+{
+    switch (t) {
+    case QRhiGraphicsPipeline::Triangles:
+    case QRhiGraphicsPipeline::TriangleStrip:
+    case QRhiGraphicsPipeline::TriangleFan:
+        return D3D12_PRIMITIVE_TOPOLOGY_TYPE_TRIANGLE;
+    case QRhiGraphicsPipeline::Lines:
+    case QRhiGraphicsPipeline::LineStrip:
+        return D3D12_PRIMITIVE_TOPOLOGY_TYPE_LINE;
+    case QRhiGraphicsPipeline::Points:
+        return D3D12_PRIMITIVE_TOPOLOGY_TYPE_POINT;
+    case QRhiGraphicsPipeline::Patches:
+        return D3D12_PRIMITIVE_TOPOLOGY_TYPE_PATCH;
+    }
+    Q_UNREACHABLE_RETURN(D3D12_PRIMITIVE_TOPOLOGY_TYPE_TRIANGLE);
+}
+
+static inline DXGI_FORMAT toD3DAttributeFormat(QRhiVertexInputAttribute::Format format)
+{
+    switch (format) {
+    case QRhiVertexInputAttribute::Float4:
+        return DXGI_FORMAT_R32G32B32A32_FLOAT;
+    case QRhiVertexInputAttribute::Float3:
+        return DXGI_FORMAT_R32G32B32_FLOAT;
+    case QRhiVertexInputAttribute::Float2:
+        return DXGI_FORMAT_R32G32_FLOAT;
+    case QRhiVertexInputAttribute::Float:
+        return DXGI_FORMAT_R32_FLOAT;
+    case QRhiVertexInputAttribute::UNormByte4:
+        return DXGI_FORMAT_R8G8B8A8_UNORM;
+    case QRhiVertexInputAttribute::UNormByte2:
+        return DXGI_FORMAT_R8G8_UNORM;
+    case QRhiVertexInputAttribute::UNormByte:
+        return DXGI_FORMAT_R8_UNORM;
+    case QRhiVertexInputAttribute::UInt4:
+        return DXGI_FORMAT_R32G32B32A32_UINT;
+    case QRhiVertexInputAttribute::UInt3:
+        return DXGI_FORMAT_R32G32B32_UINT;
+    case QRhiVertexInputAttribute::UInt2:
+        return DXGI_FORMAT_R32G32_UINT;
+    case QRhiVertexInputAttribute::UInt:
+        return DXGI_FORMAT_R32_UINT;
+     case QRhiVertexInputAttribute::SInt4:
+        return DXGI_FORMAT_R32G32B32A32_SINT;
+    case QRhiVertexInputAttribute::SInt3:
+        return DXGI_FORMAT_R32G32B32_SINT;
+    case QRhiVertexInputAttribute::SInt2:
+        return DXGI_FORMAT_R32G32_SINT;
+    case QRhiVertexInputAttribute::SInt:
+        return DXGI_FORMAT_R32_SINT;
+    case QRhiVertexInputAttribute::Half4:
+    // Note: D3D does not support half3.  Pass through half3 as half4.
+    case QRhiVertexInputAttribute::Half3:
+        return DXGI_FORMAT_R16G16B16A16_FLOAT;
+    case QRhiVertexInputAttribute::Half2:
+        return DXGI_FORMAT_R16G16_FLOAT;
+    case QRhiVertexInputAttribute::Half:
+         return DXGI_FORMAT_R16_FLOAT;
+    }
+    Q_UNREACHABLE_RETURN(DXGI_FORMAT_R32G32B32A32_FLOAT);
+}
+
+QD3D12GraphicsPipeline::QD3D12GraphicsPipeline(QRhiImplementation *rhi)
+    : QRhiGraphicsPipeline(rhi)
+{
+}
+
+QD3D12GraphicsPipeline::~QD3D12GraphicsPipeline()
+{
+    destroy();
+}
+
+void QD3D12GraphicsPipeline::destroy()
+{
+    if (handle.isNull())
+        return;
+
+    QRHI_RES_RHI(QRhiD3D12);
+    if (rhiD) {
+        rhiD->releaseQueue.deferredReleasePipeline(handle);
+        rhiD->releaseQueue.deferredReleaseRootSignature(rootSigHandle);
+    }
+
+    handle = {};
+    stageData = {};
+
+    if (rhiD)
+        rhiD->unregisterResource(this);
+}
+
+bool QD3D12GraphicsPipeline::create()
+{
+    if (!handle.isNull())
+        destroy();
+
+    QRHI_RES_RHI(QRhiD3D12);
+    if (!rhiD->sanityCheckGraphicsPipeline(this))
+        return false;
+
+    rhiD->pipelineCreationStart();
+
+    QByteArray shaderBytecode[5];
+    for (const QRhiShaderStage &shaderStage : std::as_const(m_shaderStages)) {
+        const QD3D12Stage d3dStage = qd3d12_stage(shaderStage.type());
+        stageData[d3dStage].valid = true;
+        stageData[d3dStage].stage = d3dStage;
+        auto cacheIt = rhiD->shaderBytecodeCache.data.constFind(shaderStage);
+        if (cacheIt != rhiD->shaderBytecodeCache.data.constEnd()) {
+            shaderBytecode[d3dStage] = cacheIt->bytecode;
+            stageData[d3dStage].nativeResourceBindingMap = cacheIt->nativeResourceBindingMap;
+        } else {
+            QString error;
+            QShaderKey shaderKey;
+            UINT compileFlags = 0;
+            if (m_flags.testFlag(CompileShadersWithDebugInfo))
+                compileFlags |= D3DCOMPILE_DEBUG;
+            const QByteArray bytecode = compileHlslShaderSource(shaderStage.shader(),
+                                                                shaderStage.shaderVariant(),
+                                                                compileFlags,
+                                                                &error,
+                                                                &shaderKey);
+            if (bytecode.isEmpty()) {
+                qWarning("HLSL compute shader compilation failed: %s", qPrintable(error));
+                return false;
+            }
+
+            shaderBytecode[d3dStage] = bytecode;
+            stageData[d3dStage].nativeResourceBindingMap = shaderStage.shader().nativeResourceBindingMap(shaderKey);
+            rhiD->shaderBytecodeCache.insertWithCapacityLimit(shaderStage,
+                                                              { bytecode, stageData[d3dStage].nativeResourceBindingMap });
+        }
+    }
+
+    QD3D12ShaderResourceBindings *srbD = QRHI_RES(QD3D12ShaderResourceBindings, m_shaderResourceBindings);
+    if (srbD) {
+        rootSigHandle = srbD->createRootSignature(stageData.data(), 5);
+        if (rootSigHandle.isNull()) {
+            qWarning("Failed to create root signature");
+            return false;
+        }
+    }
+    ID3D12RootSignature *rootSig = nullptr;
+    if (QD3D12RootSignature *rs = rhiD->rootSignaturePool.lookupRef(rootSigHandle))
+        rootSig = rs->rootSig;
+    if (!rootSig) {
+        qWarning("Cannot create graphics pipeline state without root signature");
+        return false;
+    }
+
+    QD3D12RenderPassDescriptor *rpD = QRHI_RES(QD3D12RenderPassDescriptor, m_renderPassDesc);
+    const DXGI_SAMPLE_DESC sampleDesc = rhiD->effectiveSampleCount(m_sampleCount, DXGI_FORMAT(rpD->colorFormat[0]));
+
+    D3D12_GRAPHICS_PIPELINE_STATE_DESC psoDesc = {};
+    psoDesc.pRootSignature = rootSig;
+    for (const QRhiShaderStage &shaderStage : std::as_const(m_shaderStages)) {
+        const int d3dStage = qd3d12_stage(shaderStage.type());
+        switch (d3dStage) {
+        case VS:
+            psoDesc.VS.pShaderBytecode = shaderBytecode[d3dStage].constData();
+            psoDesc.VS.BytecodeLength = shaderBytecode[d3dStage].size();
+            break;
+        case HS:
+            psoDesc.HS.pShaderBytecode = shaderBytecode[d3dStage].constData();
+            psoDesc.HS.BytecodeLength = shaderBytecode[d3dStage].size();
+            break;
+        case DS:
+            psoDesc.DS.pShaderBytecode = shaderBytecode[d3dStage].constData();
+            psoDesc.DS.BytecodeLength = shaderBytecode[d3dStage].size();
+            break;
+        case GS:
+            psoDesc.GS.pShaderBytecode = shaderBytecode[d3dStage].constData();
+            psoDesc.GS.BytecodeLength = shaderBytecode[d3dStage].size();
+            break;
+        case PS:
+            psoDesc.PS.pShaderBytecode = shaderBytecode[d3dStage].constData();
+            psoDesc.PS.BytecodeLength = shaderBytecode[d3dStage].size();
+            break;
+        default:
+            Q_UNREACHABLE();
+            break;
+        }
+    }
+
+    psoDesc.BlendState.IndependentBlendEnable = m_targetBlends.count() > 1;
+    for (int i = 0, ie = m_targetBlends.count(); i != ie; ++i) {
+        const QRhiGraphicsPipeline::TargetBlend &b(m_targetBlends[i]);
+        D3D12_RENDER_TARGET_BLEND_DESC blend = {};
+        blend.BlendEnable = b.enable;
+        blend.SrcBlend = toD3DBlendFactor(b.srcColor, true);
+        blend.DestBlend = toD3DBlendFactor(b.dstColor, true);
+        blend.BlendOp = toD3DBlendOp(b.opColor);
+        blend.SrcBlendAlpha = toD3DBlendFactor(b.srcAlpha, false);
+        blend.DestBlendAlpha = toD3DBlendFactor(b.dstAlpha, false);
+        blend.BlendOpAlpha = toD3DBlendOp(b.opAlpha);
+        blend.RenderTargetWriteMask = toD3DColorWriteMask(b.colorWrite);
+        psoDesc.BlendState.RenderTarget[i] = blend;
+    }
+    if (m_targetBlends.isEmpty()) {
+        D3D12_RENDER_TARGET_BLEND_DESC blend = {};
+        blend.RenderTargetWriteMask = D3D12_COLOR_WRITE_ENABLE_ALL;
+        psoDesc.BlendState.RenderTarget[0] = blend;
+    }
+
+    psoDesc.SampleMask = 0xFFFFFFFF;
+
+    psoDesc.RasterizerState.FillMode = toD3DFillMode(m_polygonMode);
+    psoDesc.RasterizerState.CullMode = toD3DCullMode(m_cullMode);
+    psoDesc.RasterizerState.FrontCounterClockwise = m_frontFace == CCW;
+    psoDesc.RasterizerState.DepthBias = m_depthBias;
+    psoDesc.RasterizerState.SlopeScaledDepthBias = m_slopeScaledDepthBias;
+    psoDesc.RasterizerState.DepthClipEnable = TRUE;
+    psoDesc.RasterizerState.MultisampleEnable = sampleDesc.Count > 1;
+
+    psoDesc.DepthStencilState.DepthEnable = m_depthTest;
+    psoDesc.DepthStencilState.DepthWriteMask = m_depthWrite ? D3D12_DEPTH_WRITE_MASK_ALL : D3D12_DEPTH_WRITE_MASK_ZERO;
+    psoDesc.DepthStencilState.DepthFunc = toD3DCompareOp(m_depthOp);
+    psoDesc.DepthStencilState.StencilEnable = m_stencilTest;
+    if (m_stencilTest) {
+        psoDesc.DepthStencilState.StencilReadMask = UINT8(m_stencilReadMask);
+        psoDesc.DepthStencilState.StencilWriteMask = UINT8(m_stencilWriteMask);
+        psoDesc.DepthStencilState.FrontFace.StencilFailOp = toD3DStencilOp(m_stencilFront.failOp);
+        psoDesc.DepthStencilState.FrontFace.StencilDepthFailOp = toD3DStencilOp(m_stencilFront.depthFailOp);
+        psoDesc.DepthStencilState.FrontFace.StencilPassOp = toD3DStencilOp(m_stencilFront.passOp);
+        psoDesc.DepthStencilState.FrontFace.StencilFunc = toD3DCompareOp(m_stencilFront.compareOp);
+        psoDesc.DepthStencilState.BackFace.StencilFailOp = toD3DStencilOp(m_stencilBack.failOp);
+        psoDesc.DepthStencilState.BackFace.StencilDepthFailOp = toD3DStencilOp(m_stencilBack.depthFailOp);
+        psoDesc.DepthStencilState.BackFace.StencilPassOp = toD3DStencilOp(m_stencilBack.passOp);
+        psoDesc.DepthStencilState.BackFace.StencilFunc = toD3DCompareOp(m_stencilBack.compareOp);
+    }
+
+    QVarLengthArray<D3D12_INPUT_ELEMENT_DESC, 4> inputDescs;
+    QByteArrayList matrixSliceSemantics;
+    if (!shaderBytecode[VS].isEmpty()) {
+        for (auto it = m_vertexInputLayout.cbeginAttributes(), itEnd = m_vertexInputLayout.cendAttributes();
+             it != itEnd; ++it)
+        {
+            D3D12_INPUT_ELEMENT_DESC desc = {};
+            // The output from SPIRV-Cross uses TEXCOORD<location> as the
+            // semantic, except for matrices that are unrolled into consecutive
+            // vec2/3/4s attributes and need TEXCOORD<location>_ as
+            // SemanticName and row/column index as SemanticIndex.
+            const int matrixSlice = it->matrixSlice();
+            if (matrixSlice < 0) {
+                desc.SemanticName = "TEXCOORD";
+                desc.SemanticIndex = UINT(it->location());
+            } else {
+                QByteArray sem;
+                sem.resize(16);
+                qsnprintf(sem.data(), sem.size(), "TEXCOORD%d_", it->location() - matrixSlice);
+                matrixSliceSemantics.append(sem);
+                desc.SemanticName = matrixSliceSemantics.last().constData();
+                desc.SemanticIndex = UINT(matrixSlice);
+            }
+            desc.Format = toD3DAttributeFormat(it->format());
+            desc.InputSlot = UINT(it->binding());
+            desc.AlignedByteOffset = it->offset();
+            const QRhiVertexInputBinding *inputBinding = m_vertexInputLayout.bindingAt(it->binding());
+            if (inputBinding->classification() == QRhiVertexInputBinding::PerInstance) {
+                desc.InputSlotClass = D3D12_INPUT_CLASSIFICATION_PER_INSTANCE_DATA;
+                desc.InstanceDataStepRate = inputBinding->instanceStepRate();
+            } else {
+                desc.InputSlotClass = D3D12_INPUT_CLASSIFICATION_PER_VERTEX_DATA;
+            }
+            inputDescs.append(desc);
+        }
+    }
+    if (!inputDescs.isEmpty()) {
+        psoDesc.InputLayout.pInputElementDescs = inputDescs.constData();
+        psoDesc.InputLayout.NumElements = inputDescs.count();
+    }
+
+    psoDesc.PrimitiveTopologyType = toD3DTopologyType(m_topology);
+    topology = toD3DTopology(m_topology, m_patchControlPointCount);
+
+    psoDesc.NumRenderTargets = rpD->colorAttachmentCount;
+    for (int i = 0; i < rpD->colorAttachmentCount; ++i)
+        psoDesc.RTVFormats[i] = DXGI_FORMAT(rpD->colorFormat[i]);
+    psoDesc.DSVFormat = rpD->hasDepthStencil ? DXGI_FORMAT(rpD->dsFormat) : DXGI_FORMAT_UNKNOWN;
+    psoDesc.SampleDesc = sampleDesc;
+
+    ID3D12PipelineState *pso = nullptr;
+    HRESULT hr = rhiD->dev->CreateGraphicsPipelineState(&psoDesc,
+                                                        __uuidof(ID3D12PipelineState),
+                                                       reinterpret_cast<void **>(&pso));
+    if (FAILED(hr)) {
+        qWarning("Failed to create graphics pipeline state: %s",
+                 qPrintable(QSystemError::windowsComString(hr)));
+        rhiD->rootSignaturePool.remove(rootSigHandle);
+        rootSigHandle = {};
+        return false;
+    }
+
+    handle = QD3D12Pipeline::addToPool(&rhiD->pipelinePool, QD3D12Pipeline::Graphics, pso);
+
+    rhiD->pipelineCreationEnd();
+    generation += 1;
+    rhiD->registerResource(this);
+    return true;
+}
+
+QD3D12ComputePipeline::QD3D12ComputePipeline(QRhiImplementation *rhi)
+    : QRhiComputePipeline(rhi)
+{
+}
+
+QD3D12ComputePipeline::~QD3D12ComputePipeline()
+{
+    destroy();
+}
+
+void QD3D12ComputePipeline::destroy()
+{
+    if (handle.isNull())
+        return;
+
+    QRHI_RES_RHI(QRhiD3D12);
+    if (rhiD) {
+        rhiD->releaseQueue.deferredReleasePipeline(handle);
+        rhiD->releaseQueue.deferredReleaseRootSignature(rootSigHandle);
+    }
+
+    handle = {};
+    stageData = {};
+
+    if (rhiD)
+        rhiD->unregisterResource(this);
+}
+
+bool QD3D12ComputePipeline::create()
+{
+    if (!handle.isNull())
+        destroy();
+
+    QRHI_RES_RHI(QRhiD3D12);
+    rhiD->pipelineCreationStart();
+
+    stageData.valid = true;
+    stageData.stage = CS;
+
+    QByteArray shaderBytecode;
+    auto cacheIt = rhiD->shaderBytecodeCache.data.constFind(m_shaderStage);
+    if (cacheIt != rhiD->shaderBytecodeCache.data.constEnd()) {
+        shaderBytecode = cacheIt->bytecode;
+        stageData.nativeResourceBindingMap = cacheIt->nativeResourceBindingMap;
+    } else {
+        QString error;
+        QShaderKey shaderKey;
+        UINT compileFlags = 0;
+        if (m_flags.testFlag(CompileShadersWithDebugInfo))
+            compileFlags |= D3DCOMPILE_DEBUG;
+        const QByteArray bytecode = compileHlslShaderSource(m_shaderStage.shader(),
+                                                            m_shaderStage.shaderVariant(),
+                                                            compileFlags,
+                                                            &error,
+                                                            &shaderKey);
+        if (bytecode.isEmpty()) {
+            qWarning("HLSL compute shader compilation failed: %s", qPrintable(error));
+            return false;
+        }
+
+        shaderBytecode = bytecode;
+        stageData.nativeResourceBindingMap = m_shaderStage.shader().nativeResourceBindingMap(shaderKey);
+        rhiD->shaderBytecodeCache.insertWithCapacityLimit(m_shaderStage, { bytecode,
+                                                                           stageData.nativeResourceBindingMap });
+    }
+
+    QD3D12ShaderResourceBindings *srbD = QRHI_RES(QD3D12ShaderResourceBindings, m_shaderResourceBindings);
+    if (srbD) {
+        rootSigHandle = srbD->createRootSignature(&stageData, 1);
+        if (rootSigHandle.isNull()) {
+            qWarning("Failed to create root signature");
+            return false;
+        }
+    }
+    ID3D12RootSignature *rootSig = nullptr;
+    if (QD3D12RootSignature *rs = rhiD->rootSignaturePool.lookupRef(rootSigHandle))
+        rootSig = rs->rootSig;
+    if (!rootSig) {
+        qWarning("Cannot create compute pipeline state without root signature");
+        return false;
+    }
+
+    D3D12_COMPUTE_PIPELINE_STATE_DESC psoDesc = {};
+    psoDesc.pRootSignature = rootSig;
+    psoDesc.CS.pShaderBytecode = shaderBytecode.constData();
+    psoDesc.CS.BytecodeLength = shaderBytecode.size();
+    ID3D12PipelineState *pso = nullptr;
+    HRESULT hr = rhiD->dev->CreateComputePipelineState(&psoDesc,
+                                                       __uuidof(ID3D12PipelineState),
+                                                       reinterpret_cast<void **>(&pso));
+    if (FAILED(hr)) {
+        qWarning("Failed to create compute pipeline state: %s",
+                 qPrintable(QSystemError::windowsComString(hr)));
+        rhiD->rootSignaturePool.remove(rootSigHandle);
+        rootSigHandle = {};
+        return false;
+    }
+
+    handle = QD3D12Pipeline::addToPool(&rhiD->pipelinePool, QD3D12Pipeline::Compute, pso);
+
+    rhiD->pipelineCreationEnd();
+    generation += 1;
+    rhiD->registerResource(this);
+    return true;
+}
+
+// This is a lot like in the Metal backend: we need to now the rtv and dsv
+// formats to create a graphics pipeline, and that's exactly what our
+// "renderpass descriptor" is going to hold.
+QD3D12RenderPassDescriptor::QD3D12RenderPassDescriptor(QRhiImplementation *rhi)
+    : QRhiRenderPassDescriptor(rhi)
+{
+    serializedFormatData.reserve(16);
+}
+
+QD3D12RenderPassDescriptor::~QD3D12RenderPassDescriptor()
+{
+    destroy();
+}
+
+void QD3D12RenderPassDescriptor::destroy()
+{
+    QRHI_RES_RHI(QRhiD3D12);
+    if (rhiD)
+        rhiD->unregisterResource(this);
+}
+
+bool QD3D12RenderPassDescriptor::isCompatible(const QRhiRenderPassDescriptor *other) const
+{
+    if (!other)
+        return false;
+
+    const QD3D12RenderPassDescriptor *o = QRHI_RES(const QD3D12RenderPassDescriptor, other);
+
+    if (colorAttachmentCount != o->colorAttachmentCount)
+        return false;
+
+    if (hasDepthStencil != o->hasDepthStencil)
+         return false;
+
+    for (int i = 0; i < colorAttachmentCount; ++i) {
+        if (colorFormat[i] != o->colorFormat[i])
+            return false;
+    }
+
+    if (hasDepthStencil) {
+        if (dsFormat != o->dsFormat)
+            return false;
+    }
+
+    return true;
+}
+
+void QD3D12RenderPassDescriptor::updateSerializedFormat()
+{
+    serializedFormatData.clear();
+    auto p = std::back_inserter(serializedFormatData);
+
+    *p++ = colorAttachmentCount;
+    *p++ = hasDepthStencil;
+    for (int i = 0; i < colorAttachmentCount; ++i)
+      *p++ = colorFormat[i];
+    *p++ = hasDepthStencil ? dsFormat : 0;
+}
+
+QRhiRenderPassDescriptor *QD3D12RenderPassDescriptor::newCompatibleRenderPassDescriptor() const
+{
+    QD3D12RenderPassDescriptor *rpD = new QD3D12RenderPassDescriptor(m_rhi);
+    rpD->colorAttachmentCount = colorAttachmentCount;
+    rpD->hasDepthStencil = hasDepthStencil;
+    memcpy(rpD->colorFormat, colorFormat, sizeof(colorFormat));
+    rpD->dsFormat = dsFormat;
+
+    rpD->updateSerializedFormat();
+
+    QRHI_RES_RHI(QRhiD3D12);
+    rhiD->registerResource(rpD);
+    return rpD;
+}
+
+QVector<quint32> QD3D12RenderPassDescriptor::serializedFormat() const
+{
+    return serializedFormatData;
+}
+
+QD3D12CommandBuffer::QD3D12CommandBuffer(QRhiImplementation *rhi)
+    : QRhiCommandBuffer(rhi)
+{
+    resetState();
+}
+
+QD3D12CommandBuffer::~QD3D12CommandBuffer()
+{
+    destroy();
+}
+
+void QD3D12CommandBuffer::destroy()
+{
+    // nothing to do here, the command list is not owned by us
+}
+
+const QRhiNativeHandles *QD3D12CommandBuffer::nativeHandles()
+{
+    nativeHandlesStruct.commandList = cmdList;
+    return &nativeHandlesStruct;
+}
+
+QD3D12SwapChainRenderTarget::QD3D12SwapChainRenderTarget(QRhiImplementation *rhi, QRhiSwapChain *swapchain)
+    : QRhiSwapChainRenderTarget(rhi, swapchain),
+      d(rhi)
+{
+}
+
+QD3D12SwapChainRenderTarget::~QD3D12SwapChainRenderTarget()
+{
+    destroy();
+}
+
+void QD3D12SwapChainRenderTarget::destroy()
+{
+    // nothing to do here
+}
+
+QSize QD3D12SwapChainRenderTarget::pixelSize() const
+{
+    return d.pixelSize;
+}
+
+float QD3D12SwapChainRenderTarget::devicePixelRatio() const
+{
+    return d.dpr;
+}
+
+int QD3D12SwapChainRenderTarget::sampleCount() const
+{
+    return d.sampleCount;
+}
+
+QD3D12SwapChain::QD3D12SwapChain(QRhiImplementation *rhi)
+    : QRhiSwapChain(rhi),
+      rtWrapper(rhi, this),
+      cbWrapper(rhi)
+{
+}
+
+QD3D12SwapChain::~QD3D12SwapChain()
+{
+    destroy();
+}
+
+void QD3D12SwapChain::destroy()
+{
+    if (!swapChain)
+        return;
+
+    releaseBuffers();
+
+    swapChain->Release();
+    swapChain = nullptr;
+    sourceSwapChain1->Release();
+    sourceSwapChain1 = nullptr;
+
+    for (int i = 0; i < QD3D12_FRAMES_IN_FLIGHT; ++i) {
+        FrameResources &fr(frameRes[i]);
+        if (fr.fence)
+            fr.fence->Release();
+        if (fr.fenceEvent)
+            CloseHandle(fr.fenceEvent);
+        if (fr.cmdList)
+            fr.cmdList->Release();
+        fr = {};
+    }
+
+    if (dcompVisual) {
+        dcompVisual->Release();
+        dcompVisual = nullptr;
+    }
+
+    if (dcompTarget) {
+        dcompTarget->Release();
+        dcompTarget = nullptr;
+    }
+
+    QRHI_RES_RHI(QRhiD3D12);
+    if (rhiD) {
+        rhiD->swapchains.remove(this);
+        rhiD->unregisterResource(this);
+    }
+}
+
+void QD3D12SwapChain::releaseBuffers()
+{
+    QRHI_RES_RHI(QRhiD3D12);
+    rhiD->waitGpu();
+    for (UINT i = 0; i < BUFFER_COUNT; ++i) {
+        rhiD->resourcePool.remove(colorBuffers[i]);
+        rhiD->rtvPool.release(rtvs[i], 1);
+        if (!msaaBuffers[i].isNull())
+            rhiD->resourcePool.remove(msaaBuffers[i]);
+        if (msaaRtvs[i].isValid())
+            rhiD->rtvPool.release(msaaRtvs[i], 1);
+    }
+}
+
+void QD3D12SwapChain::waitCommandCompletionForFrameSlot(int frameSlot)
+{
+    FrameResources &fr(frameRes[frameSlot]);
+    if (fr.fence->GetCompletedValue() < fr.fenceCounter) {
+        fr.fence->SetEventOnCompletion(fr.fenceCounter, fr.fenceEvent);
+        WaitForSingleObject(fr.fenceEvent, INFINITE);
+    }
+}
+
+void QD3D12SwapChain::addCommandCompletionSignalForCurrentFrameSlot()
+{
+    QRHI_RES_RHI(QRhiD3D12);
+    FrameResources &fr(frameRes[currentFrameSlot]);
+    fr.fenceCounter += 1u;
+    rhiD->cmdQueue->Signal(fr.fence, fr.fenceCounter);
+}
+
+QRhiCommandBuffer *QD3D12SwapChain::currentFrameCommandBuffer()
+{
+    return &cbWrapper;
+}
+
+QRhiRenderTarget *QD3D12SwapChain::currentFrameRenderTarget()
+{
+    return &rtWrapper;
+}
+
+QSize QD3D12SwapChain::surfacePixelSize()
+{
+    Q_ASSERT(m_window);
+    return m_window->size() * m_window->devicePixelRatio();
+}
+
+static bool output6ForWindow(QWindow *w, IDXGIAdapter1 *adapter, IDXGIOutput6 **result)
+{
+    bool ok = false;
+    QRect wr = w->geometry();
+    wr = QRect(wr.topLeft() * w->devicePixelRatio(), wr.size() * w->devicePixelRatio());
+    const QPoint center = wr.center();
+    IDXGIOutput *currentOutput = nullptr;
+    IDXGIOutput *output = nullptr;
+    for (UINT i = 0; adapter->EnumOutputs(i, &output) != DXGI_ERROR_NOT_FOUND; ++i) {
+        DXGI_OUTPUT_DESC desc;
+        output->GetDesc(&desc);
+        const RECT r = desc.DesktopCoordinates;
+        const QRect dr(QPoint(r.left, r.top), QPoint(r.right - 1, r.bottom - 1));
+        if (dr.contains(center)) {
+            currentOutput = output;
+            break;
+        } else {
+            output->Release();
+        }
+    }
+    if (currentOutput) {
+        ok = SUCCEEDED(currentOutput->QueryInterface(__uuidof(IDXGIOutput6), reinterpret_cast<void **>(result)));
+        currentOutput->Release();
+    }
+    return ok;
+}
+
+static bool outputDesc1ForWindow(QWindow *w, IDXGIAdapter1 *adapter, DXGI_OUTPUT_DESC1 *result)
+{
+    bool ok = false;
+    IDXGIOutput6 *out6 = nullptr;
+    if (output6ForWindow(w, adapter, &out6)) {
+        ok = SUCCEEDED(out6->GetDesc1(result));
+        out6->Release();
+    }
+    return ok;
+}
+
+bool QD3D12SwapChain::isFormatSupported(Format f)
+{
+    if (f == SDR)
+        return true;
+
+    if (!m_window) {
+        qWarning("Attempted to call isFormatSupported() without a window set");
+        return false;
+    }
+
+    QRHI_RES_RHI(QRhiD3D12);
+    DXGI_OUTPUT_DESC1 desc1;
+    if (outputDesc1ForWindow(m_window, rhiD->activeAdapter, &desc1)) {
+        if (desc1.ColorSpace == DXGI_COLOR_SPACE_RGB_FULL_G2084_NONE_P2020)
+            return f == QRhiSwapChain::HDRExtendedSrgbLinear || f == QRhiSwapChain::HDR10;
+    }
+
+    return false;
+}
+
+QRhiSwapChainHdrInfo QD3D12SwapChain::hdrInfo()
+{
+    QRhiSwapChainHdrInfo info = QRhiSwapChain::hdrInfo();
+    if (m_window) {
+        QRHI_RES_RHI(QRhiD3D12);
+        DXGI_OUTPUT_DESC1 hdrOutputDesc;
+        if (outputDesc1ForWindow(m_window, rhiD->activeAdapter, &hdrOutputDesc)) {
+            info.isHardCodedDefaults = false;
+            info.limitsType = QRhiSwapChainHdrInfo::LuminanceInNits;
+            info.limits.luminanceInNits.minLuminance = hdrOutputDesc.MinLuminance;
+            info.limits.luminanceInNits.maxLuminance = hdrOutputDesc.MaxLuminance;
+        }
+    }
+    return info;
+}
+
+QRhiRenderPassDescriptor *QD3D12SwapChain::newCompatibleRenderPassDescriptor()
+{
+    // not yet built so cannot rely on data computed in createOrResize()
+    chooseFormats();
+
+    QD3D12RenderPassDescriptor *rpD = new QD3D12RenderPassDescriptor(m_rhi);
+    rpD->colorAttachmentCount = 1;
+    rpD->hasDepthStencil = m_depthStencil != nullptr;
+    rpD->colorFormat[0] = int(srgbAdjustedColorFormat);
+    rpD->dsFormat = QD3D12RenderBuffer::DS_FORMAT;
+    rpD->updateSerializedFormat();
+
+    QRHI_RES_RHI(QRhiD3D12);
+    rhiD->registerResource(rpD);
+    return rpD;
+}
+
+bool QRhiD3D12::ensureDirectCompositionDevice()
+{
+    if (dcompDevice)
+        return true;
+
+    qCDebug(QRHI_LOG_INFO, "Creating Direct Composition device (needed for semi-transparent windows)");
+    dcompDevice = QRhiD3D::createDirectCompositionDevice();
+    return dcompDevice ? true : false;
+}
+
+static const DXGI_FORMAT DEFAULT_FORMAT = DXGI_FORMAT_R8G8B8A8_UNORM;
+static const DXGI_FORMAT DEFAULT_SRGB_FORMAT = DXGI_FORMAT_R8G8B8A8_UNORM_SRGB;
+
+void QD3D12SwapChain::chooseFormats()
+{
+    colorFormat = DEFAULT_FORMAT;
+    srgbAdjustedColorFormat = m_flags.testFlag(sRGB) ? DEFAULT_SRGB_FORMAT : DEFAULT_FORMAT;
+    hdrColorSpace = DXGI_COLOR_SPACE_RGB_FULL_G22_NONE_P709; // SDR
+    DXGI_OUTPUT_DESC1 hdrOutputDesc;
+    QRHI_RES_RHI(QRhiD3D12);
+    if (outputDesc1ForWindow(m_window, rhiD->activeAdapter, &hdrOutputDesc) && m_format != SDR) {
+        // https://docs.microsoft.com/en-us/windows/win32/direct3darticles/high-dynamic-range
+        if (hdrOutputDesc.ColorSpace == DXGI_COLOR_SPACE_RGB_FULL_G2084_NONE_P2020) {
+            switch (m_format) {
+            case HDRExtendedSrgbLinear:
+                colorFormat = DXGI_FORMAT_R16G16B16A16_FLOAT;
+                hdrColorSpace = DXGI_COLOR_SPACE_RGB_FULL_G10_NONE_P709;
+                srgbAdjustedColorFormat = colorFormat;
+                break;
+            case HDR10:
+                colorFormat = DXGI_FORMAT_R10G10B10A2_UNORM;
+                hdrColorSpace = DXGI_COLOR_SPACE_RGB_FULL_G2084_NONE_P2020;
+                srgbAdjustedColorFormat = colorFormat;
+                break;
+            default:
+                break;
+            }
+        } else {
+            // This happens also when Use HDR is set to Off in the Windows
+            // Display settings. Show a helpful warning, but continue with the
+            // default non-HDR format.
+            qWarning("The output associated with the window is not HDR capable "
+                     "(or Use HDR is Off in the Display Settings), ignoring HDR format request");
+        }
+    }
+    sampleDesc = rhiD->effectiveSampleCount(m_sampleCount, colorFormat);
+}
+
+bool QD3D12SwapChain::createOrResize()
+{
+    // Can be called multiple times due to window resizes - that is not the
+    // same as a simple destroy+create (as with other resources). Just need to
+    // resize the buffers then.
+
+    const bool needsRegistration = !window || window != m_window;
+
+    // except if the window actually changes
+    if (window && window != m_window)
+        destroy();
+
+    window = m_window;
+    m_currentPixelSize = surfacePixelSize();
+    pixelSize = m_currentPixelSize;
+
+    if (pixelSize.isEmpty())
+        return false;
+
+    HWND hwnd = reinterpret_cast<HWND>(window->winId());
+    HRESULT hr;
+    QRHI_RES_RHI(QRhiD3D12);
+
+    if (m_flags.testFlag(SurfaceHasPreMulAlpha) || m_flags.testFlag(SurfaceHasNonPreMulAlpha)) {
+        if (rhiD->ensureDirectCompositionDevice()) {
+            if (!dcompTarget) {
+                hr = rhiD->dcompDevice->CreateTargetForHwnd(hwnd, true, &dcompTarget);
+                if (FAILED(hr)) {
+                    qWarning("Failed to create Direct Compsition target for the window: %s",
+                             qPrintable(QSystemError::windowsComString(hr)));
+                }
+            }
+            if (dcompTarget && !dcompVisual) {
+                hr = rhiD->dcompDevice->CreateVisual(&dcompVisual);
+                if (FAILED(hr)) {
+                    qWarning("Failed to create DirectComposition visual: %s",
+                             qPrintable(QSystemError::windowsComString(hr)));
+                }
+            }
+        }
+        // simple consistency check
+        if (window->requestedFormat().alphaBufferSize() <= 0)
+            qWarning("Swapchain says surface has alpha but the window has no alphaBufferSize set. "
+                     "This may lead to problems.");
+    }
+
+    swapInterval = m_flags.testFlag(QRhiSwapChain::NoVSync) ? 0 : 1;
+    swapChainFlags = 0;
+    if (swapInterval == 0 && rhiD->supportsAllowTearing)
+        swapChainFlags |= DXGI_SWAP_CHAIN_FLAG_ALLOW_TEARING;
+
+    if (!swapChain) {
+        chooseFormats();
+
+        DXGI_SWAP_CHAIN_DESC1 desc = {};
+        desc.Width = UINT(pixelSize.width());
+        desc.Height = UINT(pixelSize.height());
+        desc.Format = colorFormat;
+        desc.SampleDesc.Count = 1;
+        desc.BufferUsage = DXGI_USAGE_RENDER_TARGET_OUTPUT;
+        desc.BufferCount = BUFFER_COUNT;
+        desc.Flags = swapChainFlags;
+        desc.Scaling = DXGI_SCALING_NONE;
+        desc.SwapEffect = DXGI_SWAP_EFFECT_FLIP_DISCARD;
+
+        if (dcompVisual) {
+            // With DirectComposition setting AlphaMode to STRAIGHT fails the
+            // swapchain creation, whereas the result seems to be identical
+            // with any of the other values, including IGNORE. (?)
+            desc.AlphaMode = DXGI_ALPHA_MODE_PREMULTIPLIED;
+
+            // DirectComposition has its own limitations, cannot use
+            // SCALING_NONE. So with semi-transparency requested we are forced
+            // to SCALING_STRETCH.
+            desc.Scaling = DXGI_SCALING_STRETCH;
+        }
+
+        if (dcompVisual)
+            hr = rhiD->dxgiFactory->CreateSwapChainForComposition(rhiD->cmdQueue, &desc, nullptr, &sourceSwapChain1);
+        else
+            hr = rhiD->dxgiFactory->CreateSwapChainForHwnd(rhiD->cmdQueue, hwnd, &desc, nullptr, nullptr, &sourceSwapChain1);
+
+        // If failed and we tried a HDR format, then try with SDR. This
+        // matches other backends, such as Vulkan where if the format is
+        // not supported, the default one is used instead.
+        if (FAILED(hr) && m_format != SDR) {
+            colorFormat = DEFAULT_FORMAT;
+            desc.Format = DEFAULT_FORMAT;
+            if (dcompVisual)
+                hr = rhiD->dxgiFactory->CreateSwapChainForComposition(rhiD->cmdQueue, &desc, nullptr, &sourceSwapChain1);
+            else
+                hr = rhiD->dxgiFactory->CreateSwapChainForHwnd(rhiD->cmdQueue, hwnd, &desc, nullptr, nullptr, &sourceSwapChain1);
+        }
+
+        if (SUCCEEDED(hr)) {
+            if (FAILED(sourceSwapChain1->QueryInterface(__uuidof(IDXGISwapChain3), reinterpret_cast<void **>(&swapChain)))) {
+                qWarning("IDXGISwapChain3 not available");
+                return false;
+            }
+            if (m_format != SDR) {
+                hr = swapChain->SetColorSpace1(hdrColorSpace);
+                if (FAILED(hr)) {
+                    qWarning("Failed to set color space on swapchain: %s",
+                             qPrintable(QSystemError::windowsComString(hr)));
+                }
+            }
+            if (dcompVisual) {
+                hr = dcompVisual->SetContent(swapChain);
+                if (SUCCEEDED(hr)) {
+                    hr = dcompTarget->SetRoot(dcompVisual);
+                    if (FAILED(hr)) {
+                        qWarning("Failed to associate Direct Composition visual with the target: %s",
+                                 qPrintable(QSystemError::windowsComString(hr)));
+                    }
+                } else {
+                    qWarning("Failed to set content for Direct Composition visual: %s",
+                             qPrintable(QSystemError::windowsComString(hr)));
+                }
+            } else {
+                // disable Alt+Enter; not relevant when using DirectComposition
+                rhiD->dxgiFactory->MakeWindowAssociation(hwnd, DXGI_MWA_NO_WINDOW_CHANGES);
+            }
+        }
+        if (FAILED(hr)) {
+            qWarning("Failed to create D3D12 swapchain: %s", qPrintable(QSystemError::windowsComString(hr)));
+            return false;
+        }
+
+        for (int i = 0; i < QD3D12_FRAMES_IN_FLIGHT; ++i) {
+            hr = rhiD->dev->CreateFence(0,
+                                        D3D12_FENCE_FLAG_NONE,
+                                        __uuidof(ID3D12Fence),
+                                        reinterpret_cast<void **>(&frameRes[i].fence));
+            if (FAILED(hr)) {
+                qWarning("Failed to create fence for swapchain: %s",
+                         qPrintable(QSystemError::windowsComString(hr)));
+                return false;
+            }
+            frameRes[i].fenceEvent = CreateEvent(nullptr, FALSE, FALSE, nullptr);
+
+            frameRes[i].fenceCounter = 0;
+        }
+    } else {
+        releaseBuffers();
+        hr = swapChain->ResizeBuffers(BUFFER_COUNT,
+                                      UINT(pixelSize.width()),
+                                      UINT(pixelSize.height()),
+                                      colorFormat,
+                                      swapChainFlags);
+        if (hr == DXGI_ERROR_DEVICE_REMOVED || hr == DXGI_ERROR_DEVICE_RESET) {
+            qWarning("Device loss detected in ResizeBuffers()");
+            rhiD->deviceLost = true;
+            return false;
+        } else if (FAILED(hr)) {
+            qWarning("Failed to resize D3D12 swapchain: %s", qPrintable(QSystemError::windowsComString(hr)));
+            return false;
+        }
+    }
+
+    for (UINT i = 0; i < BUFFER_COUNT; ++i) {
+        ID3D12Resource *colorBuffer;
+        hr = swapChain->GetBuffer(i, __uuidof(ID3D12Resource), reinterpret_cast<void **>(&colorBuffer));
+        if (FAILED(hr)) {
+            qWarning("Failed to get buffer %u for D3D12 swapchain: %s",
+                     i, qPrintable(QSystemError::windowsComString(hr)));
+            return false;
+        }
+        colorBuffers[i] = QD3D12Resource::addToPool(&rhiD->resourcePool, colorBuffer, D3D12_RESOURCE_STATE_PRESENT);
+        rtvs[i] = rhiD->rtvPool.allocate(1);
+        D3D12_RENDER_TARGET_VIEW_DESC rtvDesc = {};
+        rtvDesc.Format = srgbAdjustedColorFormat;
+        rtvDesc.ViewDimension = D3D12_RTV_DIMENSION_TEXTURE2D;
+        rhiD->dev->CreateRenderTargetView(colorBuffer, &rtvDesc, rtvs[i].cpuHandle);
+    }
+
+    if (m_depthStencil && m_depthStencil->sampleCount() != m_sampleCount) {
+        qWarning("Depth-stencil buffer's sampleCount (%d) does not match color buffers' sample count (%d). Expect problems.",
+                 m_depthStencil->sampleCount(), m_sampleCount);
+    }
+    if (m_depthStencil && m_depthStencil->pixelSize() != pixelSize) {
+        if (m_depthStencil->flags().testFlag(QRhiRenderBuffer::UsedWithSwapChainOnly)) {
+            m_depthStencil->setPixelSize(pixelSize);
+            if (!m_depthStencil->create())
+                qWarning("Failed to rebuild swapchain's associated depth-stencil buffer for size %dx%d",
+                         pixelSize.width(), pixelSize.height());
+        } else {
+            qWarning("Depth-stencil buffer's size (%dx%d) does not match the surface size (%dx%d). Expect problems.",
+                     m_depthStencil->pixelSize().width(), m_depthStencil->pixelSize().height(),
+                     pixelSize.width(), pixelSize.height());
+        }
+    }
+
+    ds = m_depthStencil ? QRHI_RES(QD3D12RenderBuffer, m_depthStencil) : nullptr;
+
+    if (sampleDesc.Count > 1) {
+        for (UINT i = 0; i < BUFFER_COUNT; ++i) {
+            D3D12_RESOURCE_DESC resourceDesc = {};
+            resourceDesc.Dimension = D3D12_RESOURCE_DIMENSION_TEXTURE2D;
+            resourceDesc.Width = UINT64(pixelSize.width());
+            resourceDesc.Height = UINT(pixelSize.height());
+            resourceDesc.DepthOrArraySize = 1;
+            resourceDesc.MipLevels = 1;
+            resourceDesc.Format = srgbAdjustedColorFormat;
+            resourceDesc.SampleDesc = sampleDesc;
+            resourceDesc.Layout = D3D12_TEXTURE_LAYOUT_UNKNOWN;
+            resourceDesc.Flags = D3D12_RESOURCE_FLAG_ALLOW_RENDER_TARGET;
+            D3D12_CLEAR_VALUE clearValue = {};
+            clearValue.Format = colorFormat;
+            ID3D12Resource *resource = nullptr;
+            D3D12MA::Allocation *allocation = nullptr;
+            HRESULT hr = rhiD->vma.createResource(D3D12_HEAP_TYPE_DEFAULT,
+                                                  &resourceDesc,
+                                                  D3D12_RESOURCE_STATE_RENDER_TARGET,
+                                                  &clearValue,
+                                                  &allocation,
+                                                  __uuidof(ID3D12Resource),
+                                                  reinterpret_cast<void **>(&resource));
+            if (FAILED(hr)) {
+                qWarning("Failed to create MSAA color buffer: %s", qPrintable(QSystemError::windowsComString(hr)));
+                return false;
+            }
+            msaaBuffers[i] = QD3D12Resource::addToPool(&rhiD->resourcePool, resource, D3D12_RESOURCE_STATE_RENDER_TARGET, allocation);
+            msaaRtvs[i] = rhiD->rtvPool.allocate(1);
+            if (!msaaRtvs[i].isValid())
+                return false;
+            D3D12_RENDER_TARGET_VIEW_DESC rtvDesc = {};
+            rtvDesc.Format = srgbAdjustedColorFormat;
+            rtvDesc.ViewDimension = sampleDesc.Count > 1 ? D3D12_RTV_DIMENSION_TEXTURE2DMS
+                                                         : D3D12_RTV_DIMENSION_TEXTURE2D;
+            rhiD->dev->CreateRenderTargetView(resource, &rtvDesc, msaaRtvs[i].cpuHandle);
+        }
+    }
+
+    currentBackBufferIndex = swapChain->GetCurrentBackBufferIndex();
+    currentFrameSlot = 0;
+
+    rtWrapper.setRenderPassDescriptor(m_renderPassDesc); // for the public getter in QRhiRenderTarget
+    QD3D12SwapChainRenderTarget *rtD = QRHI_RES(QD3D12SwapChainRenderTarget, &rtWrapper);
+    rtD->d.rp = QRHI_RES(QD3D12RenderPassDescriptor, m_renderPassDesc);
+    rtD->d.pixelSize = pixelSize;
+    rtD->d.dpr = float(window->devicePixelRatio());
+    rtD->d.sampleCount = int(sampleDesc.Count);
+    rtD->d.colorAttCount = 1;
+    rtD->d.dsAttCount = m_depthStencil ? 1 : 0;
+
+    if (needsRegistration) {
+        rhiD->swapchains.insert(this);
+        rhiD->registerResource(this);
+    }
+
+    return true;
+}
+
+QT_END_NAMESPACE
diff --git a/src/gui/rhi/qrhid3d12_p.h b/src/gui/rhi/qrhid3d12_p.h
new file mode 100644
index 00000000..a6954d27
--- /dev/null
+++ b/src/gui/rhi/qrhid3d12_p.h
@@ -0,0 +1,1194 @@
+// Copyright (C) 2023 The Qt Company Ltd.
+// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
+
+#ifndef QRHID3D12_P_H
+#define QRHID3D12_P_H
+
+//
+//  W A R N I N G
+//  -------------
+//
+// This file is not part of the Qt API.  It exists purely as an
+// implementation detail.  This header file may change from version to
+// version without notice, or even be removed.
+//
+// We mean it.
+//
+
+#include "qrhi_p.h"
+#include <rhi/qshaderdescription.h>
+#include <QWindow>
+#include <QBitArray>
+
+#include <optional>
+#include <array>
+
+#include <d3d12.h>
+#include <d3d12sdklayers.h>
+#include <dxgi1_6.h>
+#include <dcomp.h>
+
+#include "D3D12MemAlloc.h"
+
+QT_BEGIN_NAMESPACE
+
+static const int QD3D12_FRAMES_IN_FLIGHT = 2;
+
+class QRhiD3D12;
+
+struct QD3D12Descriptor
+{
+    D3D12_CPU_DESCRIPTOR_HANDLE cpuHandle = {};
+    D3D12_GPU_DESCRIPTOR_HANDLE gpuHandle = {};
+
+    bool isValid() const { return cpuHandle.ptr != 0; }
+};
+
+struct QD3D12ReleaseQueue;
+
+struct QD3D12DescriptorHeap
+{
+    bool isValid() const { return heap && capacity; }
+    bool create(ID3D12Device *device,
+                quint32 descriptorCount,
+                D3D12_DESCRIPTOR_HEAP_TYPE heapType,
+                D3D12_DESCRIPTOR_HEAP_FLAGS heapFlags);
+    void createWithExisting(const QD3D12DescriptorHeap &other,
+                            quint32 offsetInDescriptors,
+                            quint32 descriptorCount);
+    void destroy();
+    void destroyWithDeferredRelease(QD3D12ReleaseQueue *releaseQueue);
+
+    QD3D12Descriptor get(quint32 count);
+    QD3D12Descriptor at(quint32 index) const;
+    quint32 remainingCapacity() const { return capacity - head; }
+
+    QD3D12Descriptor incremented(const QD3D12Descriptor &descriptor, quint32 offsetInDescriptors) const
+    {
+        D3D12_CPU_DESCRIPTOR_HANDLE cpuHandle = descriptor.cpuHandle;
+        cpuHandle.ptr += offsetInDescriptors * descriptorByteSize;
+        D3D12_GPU_DESCRIPTOR_HANDLE gpuHandle = descriptor.gpuHandle;
+        if (gpuHandle.ptr)
+            gpuHandle.ptr += offsetInDescriptors * descriptorByteSize;
+        return { cpuHandle, gpuHandle };
+    }
+
+    ID3D12DescriptorHeap *heap = nullptr;
+    quint32 capacity = 0;
+    QD3D12Descriptor heapStart;
+    quint32 head = 0;
+    quint32 descriptorByteSize = 0;
+    D3D12_DESCRIPTOR_HEAP_TYPE heapType;
+    D3D12_DESCRIPTOR_HEAP_FLAGS heapFlags;
+};
+
+struct QD3D12CpuDescriptorPool
+{
+    bool isValid() const { return !heaps.isEmpty(); }
+    bool create(ID3D12Device *device, D3D12_DESCRIPTOR_HEAP_TYPE heapType, const char *debugName = "");
+    void destroy();
+
+    QD3D12Descriptor allocate(quint32 count);
+    void release(const QD3D12Descriptor &descriptor, quint32 count);
+
+    static const int DESCRIPTORS_PER_HEAP = 256;
+
+    struct HeapWithMap {
+        QD3D12DescriptorHeap heap;
+        QBitArray map;
+        static HeapWithMap init(const QD3D12DescriptorHeap &heap, quint32 descriptorCount) {
+            HeapWithMap result;
+            result.heap = heap;
+            result.map.resize(descriptorCount);
+            return result;
+        }
+    };
+
+    ID3D12Device *device;
+    quint32 descriptorByteSize;
+    QVector<HeapWithMap> heaps;
+    const char *debugName;
+};
+
+struct QD3D12StagingArea
+{
+    static const quint32 ALIGNMENT = D3D12_TEXTURE_DATA_PLACEMENT_ALIGNMENT; // 512 so good enough both for cb and texdata
+
+    struct Allocation {
+        quint8 *p = nullptr;
+        D3D12_GPU_VIRTUAL_ADDRESS gpuAddr = 0;
+        ID3D12Resource *buffer = nullptr;
+        quint32 bufferOffset = 0;
+        bool isValid() const { return p != nullptr; }
+    };
+
+    bool isValid() const { return allocation && mem.isValid(); }
+    bool create(QRhiD3D12 *rhi, quint32 capacity, D3D12_HEAP_TYPE heapType);
+    void destroy();
+    void destroyWithDeferredRelease(QD3D12ReleaseQueue *releaseQueue);
+
+    Allocation get(quint32 byteSize);
+
+    quint32 remainingCapacity() const
+    {
+        return capacity - head;
+    }
+
+    static quint32 allocSizeForArray(quint32 size, int count = 1)
+    {
+        return count * ((size + ALIGNMENT - 1) & ~(ALIGNMENT - 1));
+    }
+
+    Allocation mem;
+    ID3D12Resource *resource =  nullptr;
+    D3D12MA::Allocation *allocation = nullptr;
+    quint32 head;
+    quint32 capacity;
+};
+
+struct QD3D12ObjectHandle
+{
+    quint32 index = 0;
+    quint32 generation = 0;
+
+    // the default, null handle is guaranteed to give ObjectPool::isValid() == false
+    bool isNull() const { return index == 0 && generation == 0; }
+};
+
+inline bool operator==(const QD3D12ObjectHandle &a, const QD3D12ObjectHandle &b) noexcept
+{
+    return a.index == b.index && a.generation == b.generation;
+}
+
+inline bool operator!=(const QD3D12ObjectHandle &a, const QD3D12ObjectHandle &b) noexcept
+{
+    return !(a == b);
+}
+
+template<typename T>
+struct QD3D12ObjectPool
+{
+    void create(const char *debugName = "")
+    {
+        this->debugName = debugName;
+        Q_ASSERT(data.isEmpty());
+        data.append(Data()); // index 0 is always invalid
+    }
+
+    void destroy() {
+        int leakCount = 0; // will nicely destroy everything here, but warn about it if enabled
+        for (Data &d : data) {
+            if (d.object.has_value()) {
+                leakCount += 1;
+                d.object->releaseResources();
+            }
+        }
+        data.clear();
+#ifndef QT_NO_DEBUG
+        // debug builds: just do it always
+        static bool leakCheck = true;
+#else
+        // release builds: opt-in
+        static bool leakCheck = qEnvironmentVariableIntValue("QT_RHI_LEAK_CHECK");
+#endif
+        if (leakCheck) {
+            if (leakCount > 0) {
+                qWarning("QD3D12ObjectPool::destroy(): Pool %p '%s' had %d unreleased objects",
+                         this, debugName, leakCount);
+            }
+        }
+    }
+
+    bool isValid(const QD3D12ObjectHandle &handle) const
+    {
+        return handle.index > 0
+                && handle.index < quint32(data.count())
+                && handle.generation > 0
+                && handle.generation == data[handle.index].generation
+                && data[handle.index].object.has_value();
+    }
+
+    T lookup(const QD3D12ObjectHandle &handle) const
+    {
+        return isValid(handle) ? *data[handle.index].object : T();
+    }
+
+    const T *lookupRef(const QD3D12ObjectHandle &handle) const
+    {
+        return isValid(handle) ? &*data[handle.index].object : nullptr;
+    }
+
+    T *lookupRef(const QD3D12ObjectHandle &handle)
+    {
+        return isValid(handle) ? &*data[handle.index].object : nullptr;
+    }
+
+    QD3D12ObjectHandle add(const T &object)
+    {
+        Q_ASSERT(!data.isEmpty());
+        const quint32 count = quint32(data.count());
+        quint32 index = 1; // index 0 is always invalid
+        for (; index < count; ++index) {
+            if (!data[index].object.has_value())
+                break;
+        }
+        if (index < count) {
+            data[index].object = object;
+            quint32 &generation = data[index].generation;
+            generation += 1u;
+            return { index, generation };
+        } else {
+            data.append({ object, 1 });
+            return { count, 1 };
+        }
+    }
+
+    void remove(const QD3D12ObjectHandle &handle)
+    {
+        if (T *object = lookupRef(handle)) {
+            object->releaseResources();
+            data[handle.index].object.reset();
+        }
+    }
+
+    const char *debugName;
+    struct Data {
+        std::optional<T> object;
+        quint32 generation = 0;
+    };
+    QVector<Data> data;
+};
+
+struct QD3D12Resource
+{
+    ID3D12Resource *resource;
+    D3D12_RESOURCE_STATES state;
+    D3D12_RESOURCE_DESC desc;
+    D3D12MA::Allocation *allocation;
+    void *cpuMapPtr;
+    enum { UavUsageRead = 0x01, UavUsageWrite = 0x02 };
+    int uavUsage;
+    bool owns;
+
+    // note that this assumes the allocation (if there is one) and the resource
+    // are separately releaseable, see D3D12MemAlloc docs
+    static QD3D12ObjectHandle addToPool(QD3D12ObjectPool<QD3D12Resource> *pool,
+                                        ID3D12Resource *resource,
+                                        D3D12_RESOURCE_STATES state,
+                                        D3D12MA::Allocation *allocation = nullptr,
+                                        void *cpuMapPtr = nullptr)
+    {
+        Q_ASSERT(resource);
+        return pool->add({ resource, state, resource->GetDesc(), allocation, cpuMapPtr, 0, true });
+    }
+
+    // for QRhiTexture::createFrom() where the ID3D12Resource is not owned by us
+    static QD3D12ObjectHandle addNonOwningToPool(QD3D12ObjectPool<QD3D12Resource> *pool,
+                                                 ID3D12Resource *resource,
+                                                 D3D12_RESOURCE_STATES state)
+    {
+        Q_ASSERT(resource);
+        return pool->add({ resource, state, resource->GetDesc(), nullptr, nullptr, 0, false });
+    }
+
+    void releaseResources()
+    {
+        if (owns) {
+            // order matters: resource first, then the allocation
+            resource->Release();
+            if (allocation)
+                allocation->Release();
+        }
+    }
+};
+
+struct QD3D12Pipeline
+{
+    enum Type {
+        Graphics,
+        Compute
+    };
+    Type type;
+    ID3D12PipelineState *pso;
+
+    static QD3D12ObjectHandle addToPool(QD3D12ObjectPool<QD3D12Pipeline> *pool,
+                                        Type type,
+                                        ID3D12PipelineState *pso)
+    {
+        return pool->add({ type, pso });
+    }
+
+    void releaseResources()
+    {
+        pso->Release();
+    }
+};
+
+struct QD3D12RootSignature
+{
+    ID3D12RootSignature *rootSig;
+
+    static QD3D12ObjectHandle addToPool(QD3D12ObjectPool<QD3D12RootSignature> *pool,
+                                        ID3D12RootSignature *rootSig)
+    {
+        return pool->add({ rootSig });
+    }
+
+    void releaseResources()
+    {
+        rootSig->Release();
+    }
+};
+
+struct QD3D12ReleaseQueue
+{
+    void create(QD3D12ObjectPool<QD3D12Resource> *resourcePool,
+                QD3D12ObjectPool<QD3D12Pipeline> *pipelinePool,
+                QD3D12ObjectPool<QD3D12RootSignature> *rootSignaturePool)
+    {
+        this->resourcePool = resourcePool;
+        this->pipelinePool = pipelinePool;
+        this->rootSignaturePool = rootSignaturePool;
+    }
+
+    void deferredReleaseResource(const QD3D12ObjectHandle &handle);
+    void deferredReleaseResourceWithViews(const QD3D12ObjectHandle &handle,
+                                          QD3D12CpuDescriptorPool *pool,
+                                          const QD3D12Descriptor &viewsStart,
+                                          int viewCount);
+    void deferredReleasePipeline(const QD3D12ObjectHandle &handle);
+    void deferredReleaseRootSignature(const QD3D12ObjectHandle &handle);
+    void deferredReleaseCallback(std::function<void(void*)> callback, void *userData);
+    void deferredReleaseResourceAndAllocation(ID3D12Resource *resource,
+                                              D3D12MA::Allocation *allocation);
+    void deferredReleaseDescriptorHeap(ID3D12DescriptorHeap *heap);
+    void deferredReleaseViews(QD3D12CpuDescriptorPool *pool,
+                              const QD3D12Descriptor &viewsStart,
+                              int viewCount);
+
+    void activatePendingDeferredReleaseRequests(int frameSlot);
+    void executeDeferredReleases(int frameSlot, bool forced = false);
+    void releaseAll();
+
+    struct DeferredReleaseEntry {
+        enum Type {
+            Resource,
+            Pipeline,
+            RootSignature,
+            Callback,
+            ResourceAndAllocation,
+            DescriptorHeap,
+            Views
+        };
+        Type type = Resource;
+        std::optional<int> frameSlotToBeReleasedIn;
+        QD3D12ObjectHandle handle;
+        QD3D12CpuDescriptorPool *poolForViews = nullptr;
+        QD3D12Descriptor viewsStart;
+        int viewCount = 0;
+        std::function<void(void*)> callback = nullptr;
+        void *callbackUserData = nullptr;
+        QPair<ID3D12Resource *, D3D12MA::Allocation *> resourceAndAllocation = {};
+        ID3D12DescriptorHeap *descriptorHeap = nullptr;
+    };
+    QVector<DeferredReleaseEntry> queue;
+    QD3D12ObjectPool<QD3D12Resource> *resourcePool = nullptr;
+    QD3D12ObjectPool<QD3D12Pipeline> *pipelinePool = nullptr;
+    QD3D12ObjectPool<QD3D12RootSignature> *rootSignaturePool = nullptr;
+};
+
+struct QD3D12CommandBuffer;
+
+struct QD3D12ResourceBarrierGenerator
+{
+    static const int PREALLOC = 16;
+
+    void create(QD3D12ObjectPool<QD3D12Resource> *resourcePool)
+    {
+        this->resourcePool = resourcePool;
+    }
+
+    void addTransitionBarrier(const QD3D12ObjectHandle &resourceHandle, D3D12_RESOURCE_STATES stateAfter);
+    void enqueueBufferedTransitionBarriers(QD3D12CommandBuffer *cbD);
+    void enqueueSubresourceTransitionBarrier(QD3D12CommandBuffer *cbD,
+                                             const QD3D12ObjectHandle &resourceHandle,
+                                             UINT subresource,
+                                             D3D12_RESOURCE_STATES stateBefore,
+                                             D3D12_RESOURCE_STATES stateAfter);
+    void enqueueUavBarrier(QD3D12CommandBuffer *cbD, const QD3D12ObjectHandle &resourceHandle);
+
+    struct TransitionResourceBarrier {
+        QD3D12ObjectHandle resourceHandle;
+        D3D12_RESOURCE_STATES stateBefore;
+        D3D12_RESOURCE_STATES stateAfter;
+    };
+    QVarLengthArray<TransitionResourceBarrier, PREALLOC> transitionResourceBarriers;
+    QD3D12ObjectPool<QD3D12Resource> *resourcePool = nullptr;
+};
+
+struct QD3D12ShaderBytecodeCache
+{
+    struct Shader {
+        Shader() = default;
+        Shader(const QByteArray &bytecode, const QShader::NativeResourceBindingMap &rbm)
+            : bytecode(bytecode), nativeResourceBindingMap(rbm)
+        { }
+        QByteArray bytecode;
+        QShader::NativeResourceBindingMap nativeResourceBindingMap;
+    };
+
+    QHash<QRhiShaderStage, Shader> data;
+
+    void insertWithCapacityLimit(const QRhiShaderStage &key, const Shader &s);
+};
+
+struct QD3D12ShaderVisibleDescriptorHeap
+{
+    bool create(ID3D12Device *device, D3D12_DESCRIPTOR_HEAP_TYPE type, quint32 perFrameDescriptorCount);
+    void destroy();
+    void destroyWithDeferredRelease(QD3D12ReleaseQueue *releaseQueue);
+
+    QD3D12DescriptorHeap heap;
+    QD3D12DescriptorHeap perFrameHeapSlice[QD3D12_FRAMES_IN_FLIGHT];
+};
+
+// wrap foreign struct so we can legally supply equality operators and qHash:
+struct Q_D3D12_SAMPLER_DESC
+{
+    D3D12_SAMPLER_DESC desc;
+
+    friend bool operator==(const Q_D3D12_SAMPLER_DESC &lhs, const Q_D3D12_SAMPLER_DESC &rhs) noexcept
+    {
+        return lhs.desc.Filter == rhs.desc.Filter
+                && lhs.desc.AddressU == rhs.desc.AddressU
+                && lhs.desc.AddressV == rhs.desc.AddressV
+                && lhs.desc.AddressW == rhs.desc.AddressW
+                && lhs.desc.MipLODBias == rhs.desc.MipLODBias
+                && lhs.desc.MaxAnisotropy == rhs.desc.MaxAnisotropy
+                && lhs.desc.ComparisonFunc == rhs.desc.ComparisonFunc
+                // BorderColor is never used, skip it
+                && lhs.desc.MinLOD == rhs.desc.MinLOD
+                && lhs.desc.MaxLOD == rhs.desc.MaxLOD;
+    }
+
+    friend bool operator!=(const Q_D3D12_SAMPLER_DESC &lhs, const Q_D3D12_SAMPLER_DESC &rhs) noexcept
+    {
+        return !(lhs == rhs);
+    }
+
+    friend size_t qHash(const Q_D3D12_SAMPLER_DESC &key, size_t seed = 0) noexcept
+    {
+        QtPrivate::QHashCombine hash;
+        seed = hash(seed, key.desc.Filter);
+        seed = hash(seed, key.desc.AddressU);
+        seed = hash(seed, key.desc.AddressV);
+        seed = hash(seed, key.desc.AddressW);
+        seed = hash(seed, key.desc.MipLODBias);
+        seed = hash(seed, key.desc.MaxAnisotropy);
+        seed = hash(seed, key.desc.ComparisonFunc);
+        // BorderColor is never used, skip it
+        seed = hash(seed, key.desc.MinLOD);
+        seed = hash(seed, key.desc.MaxLOD);
+        return seed;
+    }
+};
+
+struct QD3D12SamplerManager
+{
+    const quint32 MAX_SAMPLERS = 512;
+
+    bool create(ID3D12Device *device);
+    void destroy();
+
+    QD3D12Descriptor getShaderVisibleDescriptor(const D3D12_SAMPLER_DESC &desc);
+
+    ID3D12Device *device = nullptr;
+    QD3D12ShaderVisibleDescriptorHeap shaderVisibleSamplerHeap;
+    QHash<Q_D3D12_SAMPLER_DESC, QD3D12Descriptor> gpuMap;
+};
+
+enum QD3D12Stage { VS = 0, HS, DS, GS, PS, CS };
+
+static inline QD3D12Stage qd3d12_stage(QRhiShaderStage::Type type)
+{
+    switch (type) {
+    case QRhiShaderStage::Vertex:
+        return VS;
+    case QRhiShaderStage::TessellationControl:
+        return HS;
+    case QRhiShaderStage::TessellationEvaluation:
+        return DS;
+    case QRhiShaderStage::Geometry:
+        return GS;
+    case QRhiShaderStage::Fragment:
+        return PS;
+    case QRhiShaderStage::Compute:
+        return CS;
+    }
+    Q_UNREACHABLE_RETURN(VS);
+}
+
+static inline D3D12_SHADER_VISIBILITY qd3d12_stageToVisibility(QD3D12Stage s)
+{
+    switch (s) {
+    case VS:
+        return D3D12_SHADER_VISIBILITY_VERTEX;
+    case HS:
+        return D3D12_SHADER_VISIBILITY_HULL;
+    case DS:
+        return D3D12_SHADER_VISIBILITY_DOMAIN;
+    case GS:
+        return D3D12_SHADER_VISIBILITY_GEOMETRY;
+    case PS:
+        return D3D12_SHADER_VISIBILITY_PIXEL;
+    case CS:
+        return D3D12_SHADER_VISIBILITY_ALL;
+    }
+    Q_UNREACHABLE_RETURN(D3D12_SHADER_VISIBILITY_ALL);
+}
+
+static inline QRhiShaderResourceBinding::StageFlag qd3d12_stageToSrb(QD3D12Stage s)
+{
+    switch (s) {
+    case VS:
+        return QRhiShaderResourceBinding::VertexStage;
+    case HS:
+        return QRhiShaderResourceBinding::TessellationControlStage;
+    case DS:
+        return QRhiShaderResourceBinding::TessellationEvaluationStage;
+    case GS:
+        return QRhiShaderResourceBinding::GeometryStage;
+    case PS:
+        return QRhiShaderResourceBinding::FragmentStage;
+    case CS:
+        return QRhiShaderResourceBinding::ComputeStage;
+    }
+    Q_UNREACHABLE_RETURN(QRhiShaderResourceBinding::VertexStage);
+}
+
+struct QD3D12ShaderStageData
+{
+    bool valid = false; // to allow simple arrays where unused stages are indicated by !valid
+    QD3D12Stage stage = VS;
+    QShader::NativeResourceBindingMap nativeResourceBindingMap;
+};
+
+struct QD3D12ShaderResourceBindings;
+
+struct QD3D12ShaderResourceVisitor
+{
+    enum StorageOp { Load = 0, Store, LoadStore };
+
+    QD3D12ShaderResourceVisitor(const QD3D12ShaderResourceBindings *srb,
+                                const QD3D12ShaderStageData *stageData,
+                                int stageCount)
+        : srb(srb),
+          stageData(stageData),
+          stageCount(stageCount)
+    {
+    }
+
+    std::function<void(QD3D12Stage, const QRhiShaderResourceBinding::Data::UniformBufferData &, int, int)> uniformBuffer = nullptr;
+    std::function<void(QD3D12Stage, const QRhiShaderResourceBinding::TextureAndSampler &, int)> texture = nullptr;
+    std::function<void(QD3D12Stage, const QRhiShaderResourceBinding::TextureAndSampler &, int)> sampler = nullptr;
+    std::function<void(QD3D12Stage, const QRhiShaderResourceBinding::Data::StorageImageData &, StorageOp, int)> storageImage = nullptr;
+    std::function<void(QD3D12Stage, const QRhiShaderResourceBinding::Data::StorageBufferData &, StorageOp, int)> storageBuffer = nullptr;
+
+    void visit();
+
+    const QD3D12ShaderResourceBindings *srb;
+    const QD3D12ShaderStageData *stageData;
+    int stageCount;
+};
+
+struct QD3D12Readback
+{
+    // common
+    int frameSlot = -1;
+    QRhiReadbackResult *result = nullptr;
+    QD3D12StagingArea staging;
+    quint32 byteSize = 0;
+    // textures
+    quint32 bytesPerLine = 0;
+    QSize pixelSize;
+    QRhiTexture::Format format = QRhiTexture::UnknownFormat;
+    quint32 stagingRowPitch = 0;
+};
+
+struct QD3D12MipmapGenerator
+{
+    bool create(QRhiD3D12 *rhiD);
+    void destroy();
+    void generate(QD3D12CommandBuffer *cbD, const QD3D12ObjectHandle &textureHandle);
+
+    QRhiD3D12 *rhiD;
+    QD3D12ObjectHandle rootSigHandle;
+    QD3D12ObjectHandle pipelineHandle;
+};
+
+struct QD3D12MemoryAllocator
+{
+    bool create(ID3D12Device *device, IDXGIAdapter1 *adapter);
+    void destroy();
+
+    HRESULT createResource(D3D12_HEAP_TYPE heapType,
+                           const D3D12_RESOURCE_DESC *resourceDesc,
+                           D3D12_RESOURCE_STATES initialState,
+                           const D3D12_CLEAR_VALUE *optimizedClearValue,
+                           D3D12MA::Allocation **maybeAllocation,
+                           REFIID riidResource,
+                           void **ppvResource);
+
+    void getBudget(D3D12MA::Budget *localBudget, D3D12MA::Budget *nonLocalBudget);
+
+    bool isUsingD3D12MA() const { return allocator != nullptr; }
+
+    ID3D12Device *device = nullptr;
+    D3D12MA::Allocator *allocator = nullptr;
+};
+
+struct QD3D12Buffer : public QRhiBuffer
+{
+    QD3D12Buffer(QRhiImplementation *rhi, Type type, UsageFlags usage, quint32 size);
+    ~QD3D12Buffer();
+
+    void destroy() override;
+    bool create() override;
+    QRhiBuffer::NativeBuffer nativeBuffer() override;
+    char *beginFullDynamicBufferUpdateForCurrentFrame() override;
+    void endFullDynamicBufferUpdateForCurrentFrame() override;
+
+    void executeHostWritesForFrameSlot(int frameSlot);
+
+    QD3D12ObjectHandle handles[QD3D12_FRAMES_IN_FLIGHT] = {};
+    struct HostWrite {
+        quint32 offset;
+        QRhiBufferData data;
+    };
+    QVarLengthArray<HostWrite, 16> pendingHostWrites[QD3D12_FRAMES_IN_FLIGHT];
+    friend class QRhiD3D12;
+};
+
+struct QD3D12RenderBuffer : public QRhiRenderBuffer
+{
+    QD3D12RenderBuffer(QRhiImplementation *rhi,
+                       Type type,
+                       const QSize &pixelSize,
+                       int sampleCount,
+                       Flags flags,
+                       QRhiTexture::Format backingFormatHint);
+    ~QD3D12RenderBuffer();
+    void destroy() override;
+    bool create() override;
+    QRhiTexture::Format backingFormat() const override;
+
+    static const DXGI_FORMAT DS_FORMAT = DXGI_FORMAT_D24_UNORM_S8_UINT;
+
+    QD3D12ObjectHandle handle;
+    QD3D12Descriptor rtv;
+    QD3D12Descriptor dsv;
+    DXGI_FORMAT dxgiFormat;
+    DXGI_SAMPLE_DESC sampleDesc;
+    uint generation = 0;
+    friend class QRhiD3D12;
+};
+
+struct QD3D12Texture : public QRhiTexture
+{
+    QD3D12Texture(QRhiImplementation *rhi, Format format, const QSize &pixelSize, int depth,
+                  int arraySize, int sampleCount, Flags flags);
+    ~QD3D12Texture();
+    void destroy() override;
+    bool create() override;
+    bool createFrom(NativeTexture src) override;
+    NativeTexture nativeTexture() override;
+    void setNativeLayout(int layout) override;
+
+    bool prepareCreate(QSize *adjustedSize = nullptr);
+    bool finishCreate();
+
+    QD3D12ObjectHandle handle;
+    QD3D12Descriptor srv;
+    DXGI_FORMAT dxgiFormat;
+    uint mipLevelCount;
+    DXGI_SAMPLE_DESC sampleDesc;
+    uint generation = 0;
+    friend class QRhiD3D12;
+};
+
+struct QD3D12Sampler : public QRhiSampler
+{
+    QD3D12Sampler(QRhiImplementation *rhi, Filter magFilter, Filter minFilter, Filter mipmapMode,
+                  AddressMode u, AddressMode v, AddressMode w);
+    ~QD3D12Sampler();
+    void destroy() override;
+    bool create() override;
+
+    QD3D12Descriptor lookupOrCreateShaderVisibleDescriptor();
+
+    D3D12_SAMPLER_DESC desc = {};
+    QD3D12Descriptor shaderVisibleDescriptor;
+};
+
+struct QD3D12RenderPassDescriptor : public QRhiRenderPassDescriptor
+{
+    QD3D12RenderPassDescriptor(QRhiImplementation *rhi);
+    ~QD3D12RenderPassDescriptor();
+    void destroy() override;
+    bool isCompatible(const QRhiRenderPassDescriptor *other) const override;
+    QRhiRenderPassDescriptor *newCompatibleRenderPassDescriptor() const override;
+    QVector<quint32> serializedFormat() const override;
+
+    void updateSerializedFormat();
+
+    static const int MAX_COLOR_ATTACHMENTS = 8;
+    int colorAttachmentCount = 0;
+    bool hasDepthStencil = false;
+    int colorFormat[MAX_COLOR_ATTACHMENTS];
+    int dsFormat;
+    QVector<quint32> serializedFormatData;
+};
+
+struct QD3D12RenderTargetData
+{
+    QD3D12RenderTargetData(QRhiImplementation *) { }
+
+    QD3D12RenderPassDescriptor *rp = nullptr;
+    QSize pixelSize;
+    float dpr = 1;
+    int sampleCount = 1;
+    int colorAttCount = 0;
+    int dsAttCount = 0;
+    QRhiRenderTargetAttachmentTracker::ResIdList currentResIdList;
+    static const int MAX_COLOR_ATTACHMENTS = QD3D12RenderPassDescriptor::MAX_COLOR_ATTACHMENTS;
+    D3D12_CPU_DESCRIPTOR_HANDLE rtv[MAX_COLOR_ATTACHMENTS];
+    D3D12_CPU_DESCRIPTOR_HANDLE dsv;
+};
+
+struct QD3D12SwapChainRenderTarget : public QRhiSwapChainRenderTarget
+{
+    QD3D12SwapChainRenderTarget(QRhiImplementation *rhi, QRhiSwapChain *swapchain);
+    ~QD3D12SwapChainRenderTarget();
+    void destroy() override;
+
+    QSize pixelSize() const override;
+    float devicePixelRatio() const override;
+    int sampleCount() const override;
+
+    QD3D12RenderTargetData d;
+};
+
+struct QD3D12TextureRenderTarget : public QRhiTextureRenderTarget
+{
+    QD3D12TextureRenderTarget(QRhiImplementation *rhi,
+                              const QRhiTextureRenderTargetDescription &desc,
+                              Flags flags);
+    ~QD3D12TextureRenderTarget();
+    void destroy() override;
+
+    QSize pixelSize() const override;
+    float devicePixelRatio() const override;
+    int sampleCount() const override;
+
+    QRhiRenderPassDescriptor *newCompatibleRenderPassDescriptor() override;
+    bool create() override;
+
+    QD3D12RenderTargetData d;
+    bool ownsRtv[QD3D12RenderTargetData::MAX_COLOR_ATTACHMENTS];
+    QD3D12Descriptor rtv[QD3D12RenderTargetData::MAX_COLOR_ATTACHMENTS];
+    bool ownsDsv = false;
+    QD3D12Descriptor dsv;
+    friend class QRhiD3D12;
+};
+
+struct QD3D12ShaderResourceBindings : public QRhiShaderResourceBindings
+{
+    QD3D12ShaderResourceBindings(QRhiImplementation *rhi);
+    ~QD3D12ShaderResourceBindings();
+    void destroy() override;
+    bool create() override;
+    void updateResources(UpdateFlags flags) override;
+
+    QD3D12ObjectHandle createRootSignature(const QD3D12ShaderStageData *stageData, int stageCount);
+
+    struct VisitorData {
+        QVarLengthArray<D3D12_ROOT_PARAMETER1, 2> cbParams[6];
+
+        D3D12_ROOT_PARAMETER1 srvTables[6] = {};
+        QVarLengthArray<D3D12_DESCRIPTOR_RANGE1, 4> srvRanges[6];
+        quint32 currentSrvRangeOffset[6] = {};
+
+        QVarLengthArray<D3D12_ROOT_PARAMETER1, 4> samplerTables[6];
+        std::array<D3D12_DESCRIPTOR_RANGE1, 16> samplerRanges[6] = {};
+        int samplerRangeHeads[6] = {};
+
+        D3D12_ROOT_PARAMETER1 uavTables[6] = {};
+        QVarLengthArray<D3D12_DESCRIPTOR_RANGE1, 4> uavRanges[6];
+        quint32 currentUavRangeOffset[6] = {};
+    } visitorData;
+
+
+    void visitUniformBuffer(QD3D12Stage s,
+                            const QRhiShaderResourceBinding::Data::UniformBufferData &d,
+                            int shaderRegister,
+                            int binding);
+    void visitTexture(QD3D12Stage s,
+                      const QRhiShaderResourceBinding::TextureAndSampler &d,
+                      int shaderRegister);
+    void visitSampler(QD3D12Stage s,
+                      const QRhiShaderResourceBinding::TextureAndSampler &d,
+                      int shaderRegister);
+    void visitStorageBuffer(QD3D12Stage s,
+                            const QRhiShaderResourceBinding::Data::StorageBufferData &d,
+                            QD3D12ShaderResourceVisitor::StorageOp op,
+                            int shaderRegister);
+    void visitStorageImage(QD3D12Stage s,
+                           const QRhiShaderResourceBinding::Data::StorageImageData &d,
+                           QD3D12ShaderResourceVisitor::StorageOp op,
+                           int shaderRegister);
+
+    QVarLengthArray<QRhiShaderResourceBinding, 8> sortedBindings;
+    bool hasDynamicOffset = false;
+    uint generation = 0;
+};
+
+struct QD3D12GraphicsPipeline : public QRhiGraphicsPipeline
+{
+    QD3D12GraphicsPipeline(QRhiImplementation *rhi);
+    ~QD3D12GraphicsPipeline();
+    void destroy() override;
+    bool create() override;
+
+    QD3D12ObjectHandle handle;
+    QD3D12ObjectHandle rootSigHandle;
+    std::array<QD3D12ShaderStageData, 5> stageData;
+    D3D12_PRIMITIVE_TOPOLOGY topology;
+    uint generation = 0;
+    friend class QRhiD3D12;
+};
+
+struct QD3D12ComputePipeline : public QRhiComputePipeline
+{
+    QD3D12ComputePipeline(QRhiImplementation *rhi);
+    ~QD3D12ComputePipeline();
+    void destroy() override;
+    bool create() override;
+
+    QD3D12ObjectHandle handle;
+    QD3D12ObjectHandle rootSigHandle;
+    QD3D12ShaderStageData stageData;
+    uint generation = 0;
+    friend class QRhiD3D12;
+};
+
+struct QD3D12CommandBuffer : public QRhiCommandBuffer
+{
+    QD3D12CommandBuffer(QRhiImplementation *rhi);
+    ~QD3D12CommandBuffer();
+    void destroy() override;
+
+    const QRhiNativeHandles *nativeHandles();
+
+    ID3D12GraphicsCommandList *cmdList = nullptr; // not owned
+    QRhiD3D12CommandBufferNativeHandles nativeHandlesStruct;
+
+    enum PassType {
+        NoPass,
+        RenderPass,
+        ComputePass
+    };
+
+    void resetState()
+    {
+        recordingPass = NoPass;
+        currentTarget = nullptr;
+
+        resetPerPassState();
+    }
+
+    void resetPerPassState()
+    {
+        currentGraphicsPipeline = nullptr;
+        currentComputePipeline = nullptr;
+        currentPipelineGeneration = 0;
+        currentGraphicsSrb = nullptr;
+        currentComputeSrb = nullptr;
+        currentSrbGeneration = 0;
+        currentIndexBuffer = {};
+        currentIndexOffset = 0;
+        currentIndexFormat = DXGI_FORMAT_R16_UINT;
+        currentVertexBuffers = {};
+        currentVertexOffsets = {};
+    }
+
+    PassType recordingPass;
+    QRhiRenderTarget *currentTarget;
+
+    QD3D12GraphicsPipeline *currentGraphicsPipeline;
+    QD3D12ComputePipeline *currentComputePipeline;
+    uint currentPipelineGeneration;
+    QRhiShaderResourceBindings *currentGraphicsSrb;
+    QRhiShaderResourceBindings *currentComputeSrb;
+    uint currentSrbGeneration;
+    QD3D12ObjectHandle currentIndexBuffer;
+    quint32 currentIndexOffset;
+    DXGI_FORMAT currentIndexFormat;
+    std::array<QD3D12ObjectHandle, D3D12_IA_VERTEX_INPUT_RESOURCE_SLOT_COUNT> currentVertexBuffers;
+    std::array<quint32, D3D12_IA_VERTEX_INPUT_RESOURCE_SLOT_COUNT> currentVertexOffsets;
+};
+
+struct QD3D12SwapChain : public QRhiSwapChain
+{
+    QD3D12SwapChain(QRhiImplementation *rhi);
+    ~QD3D12SwapChain();
+    void destroy() override;
+
+    QRhiCommandBuffer *currentFrameCommandBuffer() override;
+    QRhiRenderTarget *currentFrameRenderTarget() override;
+
+    QSize surfacePixelSize() override;
+    bool isFormatSupported(Format f) override;
+    QRhiSwapChainHdrInfo hdrInfo() override;
+
+    QRhiRenderPassDescriptor *newCompatibleRenderPassDescriptor() override;
+    bool createOrResize() override;
+
+    void releaseBuffers();
+    void waitCommandCompletionForFrameSlot(int frameSlot);
+    void addCommandCompletionSignalForCurrentFrameSlot();
+    void chooseFormats();
+
+    QWindow *window = nullptr;
+    IDXGISwapChain1 *sourceSwapChain1 = nullptr;
+    IDXGISwapChain3 *swapChain = nullptr;
+    QSize pixelSize;
+    UINT swapInterval = 1;
+    UINT swapChainFlags = 0;
+    DXGI_FORMAT colorFormat;
+    DXGI_FORMAT srgbAdjustedColorFormat;
+    DXGI_COLOR_SPACE_TYPE hdrColorSpace;
+    IDCompositionTarget *dcompTarget = nullptr;
+    IDCompositionVisual *dcompVisual = nullptr;
+    static const UINT BUFFER_COUNT = 3;
+    QD3D12ObjectHandle colorBuffers[BUFFER_COUNT];
+    QD3D12Descriptor rtvs[BUFFER_COUNT];
+    DXGI_SAMPLE_DESC sampleDesc;
+    QD3D12ObjectHandle msaaBuffers[BUFFER_COUNT];
+    QD3D12Descriptor msaaRtvs[BUFFER_COUNT];
+    QD3D12RenderBuffer *ds = nullptr;
+    UINT currentBackBufferIndex = 0;
+    QD3D12SwapChainRenderTarget rtWrapper;
+    QD3D12CommandBuffer cbWrapper;
+
+    struct FrameResources {
+        ID3D12Fence *fence = nullptr;
+        HANDLE fenceEvent = nullptr;
+        UINT64 fenceCounter = 0;
+        ID3D12GraphicsCommandList *cmdList = nullptr;
+    } frameRes[QD3D12_FRAMES_IN_FLIGHT];
+
+    int currentFrameSlot = 0; // index in frameRes
+};
+
+class QRhiD3D12 : public QRhiImplementation
+{
+public:
+    // 16MB * QD3D12_FRAMES_IN_FLIGHT; buffer and texture upload staging data that
+    // gets no space from this will get their own temporary staging areas.
+    static const quint32 SMALL_STAGING_AREA_BYTES_PER_FRAME = 16 * 1024 * 1024;
+
+    static const quint32 SHADER_VISIBLE_CBV_SRV_UAV_HEAP_PER_FRAME_START_SIZE = 16384;
+
+    QRhiD3D12(QRhiD3D12InitParams *params, QRhiD3D12NativeHandles *importDevice = nullptr);
+
+    bool create(QRhi::Flags flags) override;
+    void destroy() override;
+
+    QRhiGraphicsPipeline *createGraphicsPipeline() override;
+    QRhiComputePipeline *createComputePipeline() override;
+    QRhiShaderResourceBindings *createShaderResourceBindings() override;
+    QRhiBuffer *createBuffer(QRhiBuffer::Type type,
+                             QRhiBuffer::UsageFlags usage,
+                             quint32 size) override;
+    QRhiRenderBuffer *createRenderBuffer(QRhiRenderBuffer::Type type,
+                                         const QSize &pixelSize,
+                                         int sampleCount,
+                                         QRhiRenderBuffer::Flags flags,
+                                         QRhiTexture::Format backingFormatHint) override;
+    QRhiTexture *createTexture(QRhiTexture::Format format,
+                               const QSize &pixelSize,
+                               int depth,
+                               int arraySize,
+                               int sampleCount,
+                               QRhiTexture::Flags flags) override;
+    QRhiSampler *createSampler(QRhiSampler::Filter magFilter,
+                               QRhiSampler::Filter minFilter,
+                               QRhiSampler::Filter mipmapMode,
+                               QRhiSampler:: AddressMode u,
+                               QRhiSampler::AddressMode v,
+                               QRhiSampler::AddressMode w) override;
+
+    QRhiTextureRenderTarget *createTextureRenderTarget(const QRhiTextureRenderTargetDescription &desc,
+                                                       QRhiTextureRenderTarget::Flags flags) override;
+
+    QRhiSwapChain *createSwapChain() override;
+    QRhi::FrameOpResult beginFrame(QRhiSwapChain *swapChain, QRhi::BeginFrameFlags flags) override;
+    QRhi::FrameOpResult endFrame(QRhiSwapChain *swapChain, QRhi::EndFrameFlags flags) override;
+    QRhi::FrameOpResult beginOffscreenFrame(QRhiCommandBuffer **cb, QRhi::BeginFrameFlags flags) override;
+    QRhi::FrameOpResult endOffscreenFrame(QRhi::EndFrameFlags flags) override;
+    QRhi::FrameOpResult finish() override;
+
+    void resourceUpdate(QRhiCommandBuffer *cb, QRhiResourceUpdateBatch *resourceUpdates) override;
+
+    void beginPass(QRhiCommandBuffer *cb,
+                   QRhiRenderTarget *rt,
+                   const QColor &colorClearValue,
+                   const QRhiDepthStencilClearValue &depthStencilClearValue,
+                   QRhiResourceUpdateBatch *resourceUpdates,
+                   QRhiCommandBuffer::BeginPassFlags flags) override;
+    void endPass(QRhiCommandBuffer *cb, QRhiResourceUpdateBatch *resourceUpdates) override;
+
+    void setGraphicsPipeline(QRhiCommandBuffer *cb,
+                             QRhiGraphicsPipeline *ps) override;
+
+    void setShaderResources(QRhiCommandBuffer *cb,
+                            QRhiShaderResourceBindings *srb,
+                            int dynamicOffsetCount,
+                            const QRhiCommandBuffer::DynamicOffset *dynamicOffsets) override;
+
+    void setVertexInput(QRhiCommandBuffer *cb,
+                        int startBinding, int bindingCount, const QRhiCommandBuffer::VertexInput *bindings,
+                        QRhiBuffer *indexBuf, quint32 indexOffset,
+                        QRhiCommandBuffer::IndexFormat indexFormat) override;
+
+    void setViewport(QRhiCommandBuffer *cb, const QRhiViewport &viewport) override;
+    void setScissor(QRhiCommandBuffer *cb, const QRhiScissor &scissor) override;
+    void setBlendConstants(QRhiCommandBuffer *cb, const QColor &c) override;
+    void setStencilRef(QRhiCommandBuffer *cb, quint32 refValue) override;
+
+    void draw(QRhiCommandBuffer *cb, quint32 vertexCount,
+              quint32 instanceCount, quint32 firstVertex, quint32 firstInstance) override;
+
+    void drawIndexed(QRhiCommandBuffer *cb, quint32 indexCount,
+                     quint32 instanceCount, quint32 firstIndex,
+                     qint32 vertexOffset, quint32 firstInstance) override;
+
+    void debugMarkBegin(QRhiCommandBuffer *cb, const QByteArray &name) override;
+    void debugMarkEnd(QRhiCommandBuffer *cb) override;
+    void debugMarkMsg(QRhiCommandBuffer *cb, const QByteArray &msg) override;
+
+    void beginComputePass(QRhiCommandBuffer *cb,
+                          QRhiResourceUpdateBatch *resourceUpdates,
+                          QRhiCommandBuffer::BeginPassFlags flags) override;
+    void endComputePass(QRhiCommandBuffer *cb, QRhiResourceUpdateBatch *resourceUpdates) override;
+    void setComputePipeline(QRhiCommandBuffer *cb, QRhiComputePipeline *ps) override;
+    void dispatch(QRhiCommandBuffer *cb, int x, int y, int z) override;
+
+    const QRhiNativeHandles *nativeHandles(QRhiCommandBuffer *cb) override;
+    void beginExternal(QRhiCommandBuffer *cb) override;
+    void endExternal(QRhiCommandBuffer *cb) override;
+    double lastCompletedGpuTime(QRhiCommandBuffer *cb) override;
+
+    QList<int> supportedSampleCounts() const override;
+    int ubufAlignment() const override;
+    bool isYUpInFramebuffer() const override;
+    bool isYUpInNDC() const override;
+    bool isClipDepthZeroToOne() const override;
+    QMatrix4x4 clipSpaceCorrMatrix() const override;
+    bool isTextureFormatSupported(QRhiTexture::Format format, QRhiTexture::Flags flags) const override;
+    bool isFeatureSupported(QRhi::Feature feature) const override;
+    int resourceLimit(QRhi::ResourceLimit limit) const override;
+    const QRhiNativeHandles *nativeHandles() override;
+    QRhiDriverInfo driverInfo() const override;
+    QRhiStats statistics() override;
+    bool makeThreadLocalNativeContextCurrent() override;
+    void releaseCachedResources() override;
+    bool isDeviceLost() const override;
+
+    QByteArray pipelineCacheData() override;
+    void setPipelineCacheData(const QByteArray &data) override;
+
+    void waitGpu();
+    DXGI_SAMPLE_DESC effectiveSampleCount(int sampleCount, DXGI_FORMAT format) const;
+    bool ensureDirectCompositionDevice();
+    bool startCommandListForCurrentFrameSlot(ID3D12GraphicsCommandList **cmdList);
+    void enqueueResourceUpdates(QD3D12CommandBuffer *cbD, QRhiResourceUpdateBatch *resourceUpdates);
+    void finishActiveReadbacks(bool forced = false);
+    bool ensureShaderVisibleDescriptorHeapCapacity(QD3D12ShaderVisibleDescriptorHeap *h,
+                                                   D3D12_DESCRIPTOR_HEAP_TYPE type,
+                                                   int frameSlot,
+                                                   quint32 neededDescriptorCount,
+                                                   bool *gotNew);
+    void bindShaderVisibleHeaps(QD3D12CommandBuffer *cbD);
+
+    bool debugLayer = false;
+    ID3D12Device *dev = nullptr;
+    D3D_FEATURE_LEVEL minimumFeatureLevel = D3D_FEATURE_LEVEL(0);
+    LUID adapterLuid = {};
+    bool importedDevice = false;
+    bool importedCommandQueue = false;
+    QRhi::Flags rhiFlags;
+    IDXGIFactory2 *dxgiFactory = nullptr;
+    bool supportsAllowTearing = false;
+    IDXGIAdapter1 *activeAdapter = nullptr;
+    QRhiDriverInfo driverInfoStruct;
+    QRhiD3D12NativeHandles nativeHandlesStruct;
+    bool deviceLost = false;
+    ID3D12CommandQueue *cmdQueue = nullptr;
+    ID3D12Fence *fullFence = nullptr;
+    HANDLE fullFenceEvent = nullptr;
+    UINT64 fullFenceCounter = 0;
+    ID3D12CommandAllocator *cmdAllocators[QD3D12_FRAMES_IN_FLIGHT] = {};
+    QD3D12MemoryAllocator vma;
+    QD3D12CpuDescriptorPool rtvPool;
+    QD3D12CpuDescriptorPool dsvPool;
+    QD3D12CpuDescriptorPool cbvSrvUavPool;
+    QD3D12ObjectPool<QD3D12Resource> resourcePool;
+    QD3D12ObjectPool<QD3D12Pipeline> pipelinePool;
+    QD3D12ObjectPool<QD3D12RootSignature> rootSignaturePool;
+    QD3D12ReleaseQueue releaseQueue;
+    QD3D12ResourceBarrierGenerator barrierGen;
+    QD3D12SamplerManager samplerMgr;
+    QD3D12MipmapGenerator mipmapGen;
+    QD3D12StagingArea smallStagingAreas[QD3D12_FRAMES_IN_FLIGHT];
+    QD3D12ShaderVisibleDescriptorHeap shaderVisibleCbvSrvUavHeap;
+    IDCompositionDevice *dcompDevice = nullptr;
+    QD3D12SwapChain *currentSwapChain = nullptr;
+    QSet<QD3D12SwapChain *> swapchains;
+    QD3D12ShaderBytecodeCache shaderBytecodeCache;
+    QVarLengthArray<QD3D12Readback, 4> activeReadbacks;
+    bool offscreenActive = false;
+    QD3D12CommandBuffer *offscreenCb[QD3D12_FRAMES_IN_FLIGHT] = {};
+
+    struct VisitorData {
+        QVarLengthArray<QPair<QD3D12ObjectHandle, quint32>, 4> cbufs[6];
+        QVarLengthArray<QD3D12Descriptor, 8> srvs[6];
+        QVarLengthArray<QD3D12Descriptor, 8> samplers[6];
+        QVarLengthArray<QPair<QD3D12ObjectHandle, D3D12_UNORDERED_ACCESS_VIEW_DESC>, 4> uavs[6];
+    } visitorData;
+
+    void visitUniformBuffer(QD3D12Stage s,
+                            const QRhiShaderResourceBinding::Data::UniformBufferData &d,
+                            int shaderRegister,
+                            int binding,
+                            int dynamicOffsetCount,
+                            const QRhiCommandBuffer::DynamicOffset *dynamicOffsets);
+    void visitTexture(QD3D12Stage s,
+                      const QRhiShaderResourceBinding::TextureAndSampler &d,
+                      int shaderRegister);
+    void visitSampler(QD3D12Stage s,
+                      const QRhiShaderResourceBinding::TextureAndSampler &d,
+                      int shaderRegister);
+    void visitStorageBuffer(QD3D12Stage s,
+                            const QRhiShaderResourceBinding::Data::StorageBufferData &d,
+                            QD3D12ShaderResourceVisitor::StorageOp op,
+                            int shaderRegister);
+    void visitStorageImage(QD3D12Stage s,
+                           const QRhiShaderResourceBinding::Data::StorageImageData &d,
+                           QD3D12ShaderResourceVisitor::StorageOp op,
+                           int shaderRegister);
+};
+
+QT_END_NAMESPACE
+
+#endif
diff --git a/src/gui/rhi/qrhid3dhelpers_p.h b/src/gui/rhi/qrhid3dhelpers_p.h
new file mode 100644
index 00000000..f20c0428
--- /dev/null
+++ b/src/gui/rhi/qrhid3dhelpers_p.h
@@ -0,0 +1,67 @@
+// Copyright (C) 2023 The Qt Company Ltd.
+// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
+
+#ifndef QRHID3DHELPERS_P_H
+#define QRHID3DHELPERS_P_H
+
+//
+//  W A R N I N G
+//  -------------
+//
+// This file is not part of the Qt API.  It exists purely as an
+// implementation detail.  This header file may change from version to
+// version without notice, or even be removed.
+//
+// We mean it.
+//
+
+#include <QtCore/private/qsystemlibrary_p.h>
+#include <QtCore/private/qsystemerror_p.h>
+
+#include <dcomp.h>
+#include <d3dcompiler.h>
+
+QT_BEGIN_NAMESPACE
+
+namespace QRhiD3D {
+
+inline pD3DCompile resolveD3DCompile()
+{
+    for (const wchar_t *libraryName : {L"D3DCompiler_47", L"D3DCompiler_43"}) {
+        QSystemLibrary library(libraryName);
+        if (library.load()) {
+            if (auto symbol = library.resolve("D3DCompile"))
+                return reinterpret_cast<pD3DCompile>(symbol);
+        }
+    }
+    return nullptr;
+}
+
+inline IDCompositionDevice *createDirectCompositionDevice()
+{
+    QSystemLibrary dcomplib(QStringLiteral("dcomp"));
+    typedef HRESULT (__stdcall *DCompositionCreateDeviceFuncPtr)(
+        _In_opt_ IDXGIDevice *dxgiDevice,
+        _In_ REFIID iid,
+        _Outptr_ void **dcompositionDevice);
+    DCompositionCreateDeviceFuncPtr func = reinterpret_cast<DCompositionCreateDeviceFuncPtr>(
+        dcomplib.resolve("DCompositionCreateDevice"));
+    if (!func) {
+        qWarning("Unable to resolve DCompositionCreateDevice, perhaps dcomp.dll is missing?");
+        return nullptr;
+    }
+    IDCompositionDevice *device = nullptr;
+    HRESULT hr = func(nullptr, __uuidof(IDCompositionDevice), reinterpret_cast<void **>(&device));
+    if (FAILED(hr)) {
+        qWarning("Failed to Direct Composition device: %s",
+                 qPrintable(QSystemError::windowsComString(hr)));
+        return nullptr;
+    }
+    return device;
+}
+
+} // namespace
+
+QT_END_NAMESPACE
+
+#endif
diff --git a/src/gui/rhi/qrhigles2.cpp b/src/gui/rhi/qrhigles2.cpp
index e9997a97..02138d7f 100644
--- a/src/gui/rhi/qrhigles2.cpp
+++ b/src/gui/rhi/qrhigles2.cpp
@@ -1,7 +1,7 @@
-// Copyright (C) 2021 The Qt Company Ltd.
+// Copyright (C) 2023 The Qt Company Ltd.
 // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
 
-#include "qrhigles2_p_p.h"
+#include "qrhigles2_p.h"
 #include <QOffscreenSurface>
 #include <QOpenGLContext>
 #include <QtCore/qmap.h>
@@ -27,10 +27,13 @@ QT_BEGIN_NAMESPACE
 
 /*!
     \class QRhiGles2InitParams
-    \internal
     \inmodule QtGui
+    \since 6.6
     \brief OpenGL specific initialization parameters.
 
+    \note This is a RHI API with limited compatibility guarantees, see \l QRhi
+    for details.
+
     An OpenGL-based QRhi needs an already created QSurface that can be used in
     combination with QOpenGLContext. Most commonly, this is a QOffscreenSurface
     in practice. Additionally, while optional, it is recommended that the QWindow
@@ -51,18 +54,18 @@ QT_BEGIN_NAMESPACE
     thread) are satisfied. The implicitly created context is destroyed
     automatically together with the QRhi.
 
-    The QSurfaceFormat for the context is specified in \l format. The
+    The QSurfaceFormat for the context is specified in \c format. The
     constructor sets this to QSurfaceFormat::defaultFormat() so applications
     that call QSurfaceFormat::setDefaultFormat() with the appropriate settings
-    before the constructor runs will not need to change value of \l format.
+    before the constructor runs will not need to change value of \c format.
 
     \note Remember to set the depth and stencil buffer sizes to 24 and 8 when
     the renderer relies on depth or stencil testing, either in the global
     default QSurfaceFormat, or, alternatively, separately in all the involved
-    QSurfaceFormat instances: in \l format, the format argument passed to
+    QSurfaceFormat instances: in \c format, the format argument passed to
     newFallbackSurface(), and on any QWindow that is used with the QRhi.
 
-    A QSurface has to be specified in \l fallbackSurface. In order to prevent
+    A QSurface has to be specified in \c fallbackSurface. In order to prevent
     mistakes in threaded situations, this is never created automatically by the
     QRhi because, like QWindow, instances of QSurface subclasses can often be
     created on the gui/main thread only.
@@ -77,14 +80,14 @@ QT_BEGIN_NAMESPACE
     instances that have their surface type set to QSurface::OpenGLSurface or
     QSurface::RasterGLSurface.
 
-    \note \l window is optional. It is recommended to specify it whenever
+    \note \c window is optional. It is recommended to specify it whenever
     possible, in order to avoid problems on multi-adapter and multi-screen
-    systems. When \l window is not set, the very first
-    QOpenGLContext::makeCurrent() happens with \l fallbackSurface which may be
+    systems. When \c window is not set, the very first
+    QOpenGLContext::makeCurrent() happens with \c fallbackSurface which may be
     an invisible window on some platforms (for example, Windows) and that may
     trigger unexpected problems in some cases.
 
-    In case resource sharing with an existing QOpenGLContext is desired, \l
+    In case resource sharing with an existing QOpenGLContext is desired, \c
     shareContext can be set to an existing QOpenGLContext. Alternatively,
     Qt::AA_ShareOpenGLContexts is honored as well, when enabled.
 
@@ -93,8 +96,7 @@ QT_BEGIN_NAMESPACE
     When interoperating with another graphics engine, it may be necessary to
     get a QRhi instance that uses the same OpenGL context. This can be achieved
     by passing a pointer to a QRhiGles2NativeHandles to QRhi::create(). The
-    \l{QRhiGles2NativeHandles::context}{context} must be set to a non-null
-    value.
+    \c{QRhiGles2NativeHandles::context} must be set to a non-null value then.
 
     An alternative approach is to create a QOpenGLContext that
     \l{QOpenGLContext::setShareContext()}{shares resources} with the other
@@ -104,13 +106,51 @@ QT_BEGIN_NAMESPACE
     QRhiGles2NativeHandles.
  */
 
+/*!
+    \variable QRhiGles2InitParams::format
+
+    The QSurfaceFormat, initialized to QSurfaceFormat::defaultFormat() by default.
+*/
+
+/*!
+    \variable QRhiGles2InitParams::fallbackSurface
+
+    A QSurface compatible with \l format. Typically a QOffscreenSurface.
+    Providing this is mandatory. Be aware of the threading implications: a
+    QOffscreenSurface, like QWindow, must only ever be created and destroyed on
+    the main (gui) thread, even if the QRhi is created and operates on another
+    thread.
+*/
+
+/*!
+    \variable QRhiGles2InitParams::window
+
+    Optional, but setting it is recommended when targeting a QWindow with the
+    QRhi.
+*/
+
+/*!
+    \variable QRhiGles2InitParams::shareContext
+
+    Optional, the QOpenGLContext to share resource with. QRhi creates its own
+    context, and setting this member to a valid QOpenGLContext leads to calling
+    \l{QOpenGLContext::setShareContext()}{setShareContext()} with it.
+*/
+
 /*!
     \class QRhiGles2NativeHandles
-    \internal
     \inmodule QtGui
+    \since 6.6
     \brief Holds the OpenGL context used by the QRhi.
+
+    \note This is a RHI API with limited compatibility guarantees, see \l QRhi
+    for details.
  */
 
+/*!
+    \variable QRhiGles2NativeHandles::context
+*/
+
 #ifndef GL_BGRA
 #define GL_BGRA                           0x80E1
 #endif
@@ -319,6 +359,10 @@ QT_BEGIN_NAMESPACE
 #define GL_TEXTURE_2D_MULTISAMPLE         0x9100
 #endif
 
+#ifndef GL_TEXTURE_2D_MULTISAMPLE_ARRAY
+#define GL_TEXTURE_2D_MULTISAMPLE_ARRAY   0x9102
+#endif
+
 #ifndef GL_TEXTURE_EXTERNAL_OES
 #define GL_TEXTURE_EXTERNAL_OES           0x8D65
 #endif
@@ -455,6 +499,14 @@ QT_BEGIN_NAMESPACE
 #  define GL_TEXTURE_1D_ARRAY 0x8C18
 #endif
 
+#ifndef GL_HALF_FLOAT
+#define GL_HALF_FLOAT 0x140B
+#endif
+
+#ifndef GL_MAX_VERTEX_OUTPUT_COMPONENTS
+#define GL_MAX_VERTEX_OUTPUT_COMPONENTS   0x9122
+#endif
+
 /*!
     Constructs a new QRhiGles2InitParams.
 
@@ -940,7 +992,7 @@ bool QRhiGles2::create(QRhi::Flags flags)
         f->glGetIntegerv(GL_MAX_VARYING_VECTORS, &caps.maxVertexOutputs);
     } else if (caps.ctxMajor >= 3) {
         GLint components = 0;
-        f->glGetIntegerv(GL_MAX_VARYING_COMPONENTS, &components);
+        f->glGetIntegerv(caps.coreProfile ? GL_MAX_VERTEX_OUTPUT_COMPONENTS : GL_MAX_VARYING_COMPONENTS, &components);
         caps.maxVertexOutputs = components / 4;
     } else {
         // OpenGL before 3.0 only has this, and not the same as
@@ -963,6 +1015,8 @@ bool QRhiGles2::create(QRhi::Flags flags)
     if (!caps.gles && (caps.ctxMajor > 3 || (caps.ctxMajor == 3 && caps.ctxMinor >= 2)))
         f->glEnable(GL_TEXTURE_CUBE_MAP_SEAMLESS);
 
+    caps.halfAttributes = f->hasOpenGLExtension(QOpenGLExtensions::HalfFloatVertex);
+
     nativeHandlesStruct.context = ctx;
 
     contextLost = false;
@@ -1319,6 +1373,12 @@ bool QRhiGles2::isFeatureSupported(QRhi::Feature feature) const
         return caps.texture1D;
     case QRhi::OneDimensionalTextureMipmaps:
         return caps.texture1D;
+    case QRhi::HalfAttributes:
+        return caps.halfAttributes;
+    case QRhi::RenderToOneDimensionalTexture:
+        return caps.texture1D;
+    case QRhi::ThreeDimensionalTextureMipmaps:
+        return caps.texture3D;
     default:
         Q_UNREACHABLE_RETURN(false);
     }
@@ -1616,7 +1676,7 @@ void QRhiGles2::setShaderResources(QRhiCommandBuffer *cb, QRhiShaderResourceBind
     if (cbD->passNeedsResourceTracking) {
         QRhiPassResourceTracker &passResTracker(cbD->passResTrackers[cbD->currentPassResTrackerIndex]);
         for (int i = 0, ie = srbD->m_bindings.size(); i != ie; ++i) {
-            const QRhiShaderResourceBinding::Data *b = srbD->m_bindings.at(i).data();
+            const QRhiShaderResourceBinding::Data *b = shaderResourceBindingData(srbD->m_bindings.at(i));
             switch (b->type) {
             case QRhiShaderResourceBinding::UniformBuffer:
                 // no BufUniformRead / AccessUniform because no real uniform buffers are used
@@ -1956,6 +2016,12 @@ void QRhiGles2::endExternal(QRhiCommandBuffer *cb)
         enqueueBindFramebuffer(cbD->currentTarget, cbD);
 }
 
+double QRhiGles2::lastCompletedGpuTime(QRhiCommandBuffer *cb)
+{
+    Q_UNUSED(cb);
+    return 0;
+}
+
 QRhi::FrameOpResult QRhiGles2::beginFrame(QRhiSwapChain *swapChain, QRhi::BeginFrameFlags)
 {
     QGles2SwapChain *swapChainD = QRHI_RES(QGles2SwapChain, swapChain);
@@ -2181,6 +2247,8 @@ void QRhiGles2::enqueueSubresUpload(QGles2Texture *texD, QGles2CommandBuffer *cb
         cmd.args.subImage.rowLength = 0;
         cmd.args.subImage.data = cbD->retainImage(img);
     } else if (!rawData.isEmpty() && isCompressed) {
+        const int depth = qMax(1, texD->m_depth);
+        const int arraySize = qMax(0, texD->m_arraySize);
         if ((texD->flags().testFlag(QRhiTexture::UsedAsCompressedAtlas) || is3D || isArray)
                 && !texD->zeroInitialized)
         {
@@ -2192,9 +2260,9 @@ void QRhiGles2::enqueueSubresUpload(QGles2Texture *texD, QGles2CommandBuffer *cb
             quint32 byteSize = 0;
             compressedFormatInfo(texD->m_format, texD->m_pixelSize, nullptr, &byteSize, nullptr);
             if (is3D)
-                byteSize *= texD->m_depth;
+                byteSize *= depth;
             if (isArray)
-                byteSize *= texD->m_arraySize;
+                byteSize *= arraySize;
             QByteArray zeroBuf(byteSize, 0);
             QGles2CommandBuffer::Command &cmd(cbD->commands.get());
             cmd.cmd = QGles2CommandBuffer::Command::CompressedImage;
@@ -2204,9 +2272,8 @@ void QRhiGles2::enqueueSubresUpload(QGles2Texture *texD, QGles2CommandBuffer *cb
             cmd.args.compressedImage.level = level;
             cmd.args.compressedImage.glintformat = texD->glintformat;
             cmd.args.compressedImage.w = texD->m_pixelSize.width();
-            cmd.args.compressedImage.h =
-                    is1D && isArray ? texD->m_arraySize : texD->m_pixelSize.height();
-            cmd.args.compressedImage.depth = is3D ? texD->m_depth : (isArray ? texD->m_arraySize : 0);
+            cmd.args.compressedImage.h = is1D && isArray ? arraySize : texD->m_pixelSize.height();
+            cmd.args.compressedImage.depth = is3D ? depth : (isArray ? arraySize : 0);
             cmd.args.compressedImage.size = byteSize;
             cmd.args.compressedImage.data = cbD->retainData(zeroBuf);
             texD->zeroInitialized = true;
@@ -2238,8 +2305,8 @@ void QRhiGles2::enqueueSubresUpload(QGles2Texture *texD, QGles2CommandBuffer *cb
             cmd.args.compressedImage.level = level;
             cmd.args.compressedImage.glintformat = texD->glintformat;
             cmd.args.compressedImage.w = size.width();
-            cmd.args.compressedImage.h = is1D && isArray ? texD->m_arraySize : size.height();
-            cmd.args.compressedImage.depth = is3D ? texD->m_depth : (isArray ? texD->m_arraySize : 0);
+            cmd.args.compressedImage.h = is1D && isArray ? arraySize : size.height();
+            cmd.args.compressedImage.depth = is3D ? depth : (isArray ? arraySize : 0);
             cmd.args.compressedImage.size = rawData.size();
             cmd.args.compressedImage.data = cbD->retainData(rawData);
         }
@@ -2943,6 +3010,22 @@ void QRhiGles2::executeCommandBuffer(QRhiCommandBuffer *cb)
                         type = GL_INT;
                         size = 1;
                         break;
+                    case QRhiVertexInputAttribute::Half4:
+                        type = GL_HALF_FLOAT;
+                        size = 4;
+                        break;
+                    case QRhiVertexInputAttribute::Half3:
+                        type = GL_HALF_FLOAT;
+                        size = 3;
+                        break;
+                    case QRhiVertexInputAttribute::Half2:
+                        type = GL_HALF_FLOAT;
+                        size = 2;
+                        break;
+                    case QRhiVertexInputAttribute::Half:
+                        type = GL_HALF_FLOAT;
+                        size = 1;
+                        break;
                     default:
                         break;
                     }
@@ -3117,7 +3200,7 @@ void QRhiGles2::executeCommandBuffer(QRhiCommandBuffer *cb)
             break;
         case QGles2CommandBuffer::Command::GetBufferSubData:
         {
-            QRhiBufferReadbackResult *result = cmd.args.getBufferSubData.result;
+            QRhiReadbackResult *result = cmd.args.getBufferSubData.result;
             bindVertexIndexBufferWithStateReset(&state, f, cmd.args.getBufferSubData.target, cmd.args.getBufferSubData.buffer);
             if (caps.gles) {
                 if (caps.properMapBuffer) {
@@ -3346,17 +3429,55 @@ void QRhiGles2::executeCommandBuffer(QRhiCommandBuffer *cb)
             f->glGenFramebuffers(2, fbo);
             f->glBindFramebuffer(GL_READ_FRAMEBUFFER, fbo[0]);
             f->glFramebufferRenderbuffer(GL_READ_FRAMEBUFFER, GL_COLOR_ATTACHMENT0,
-                                         GL_RENDERBUFFER, cmd.args.blitFromRb.renderbuffer);
+                                         GL_RENDERBUFFER, cmd.args.blitFromRenderbuffer.renderbuffer);
             f->glBindFramebuffer(GL_DRAW_FRAMEBUFFER, fbo[1]);
-            if (cmd.args.blitFromRb.target == GL_TEXTURE_3D || cmd.args.blitFromRb.target == GL_TEXTURE_2D_ARRAY) {
+            if (cmd.args.blitFromRenderbuffer.target == GL_TEXTURE_3D || cmd.args.blitFromRenderbuffer.target == GL_TEXTURE_2D_ARRAY) {
                 f->glFramebufferTextureLayer(GL_DRAW_FRAMEBUFFER, GL_COLOR_ATTACHMENT0,
-                                             cmd.args.blitFromRb.texture, cmd.args.blitFromRb.dstLevel, cmd.args.blitFromRb.dstLayer);
+                                             cmd.args.blitFromRenderbuffer.dstTexture,
+                                             cmd.args.blitFromRenderbuffer.dstLevel,
+                                             cmd.args.blitFromRenderbuffer.dstLayer);
             } else {
-                f->glFramebufferTexture2D(GL_DRAW_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, cmd.args.blitFromRb.target,
-                                          cmd.args.blitFromRb.texture, cmd.args.blitFromRb.dstLevel);
+                f->glFramebufferTexture2D(GL_DRAW_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, cmd.args.blitFromRenderbuffer.target,
+                                          cmd.args.blitFromRenderbuffer.dstTexture, cmd.args.blitFromRenderbuffer.dstLevel);
             }
-            f->glBlitFramebuffer(0, 0, cmd.args.blitFromRb.w, cmd.args.blitFromRb.h,
-                                 0, 0, cmd.args.blitFromRb.w, cmd.args.blitFromRb.h,
+            f->glBlitFramebuffer(0, 0, cmd.args.blitFromRenderbuffer.w, cmd.args.blitFromRenderbuffer.h,
+                                 0, 0, cmd.args.blitFromRenderbuffer.w, cmd.args.blitFromRenderbuffer.h,
+                                 GL_COLOR_BUFFER_BIT,
+                                 GL_NEAREST); // Qt 5 used Nearest when resolving samples, stick to that
+            f->glBindFramebuffer(GL_FRAMEBUFFER, ctx->defaultFramebufferObject());
+            f->glDeleteFramebuffers(2, fbo);
+        }
+            break;
+        case QGles2CommandBuffer::Command::BlitFromTexture:
+        {
+            // Altering the scissor state, so reset the stored state, although
+            // not strictly required as long as blit is done in endPass() only.
+            cbD->graphicsPassState.reset();
+            f->glDisable(GL_SCISSOR_TEST);
+            GLuint fbo[2];
+            f->glGenFramebuffers(2, fbo);
+            f->glBindFramebuffer(GL_READ_FRAMEBUFFER, fbo[0]);
+            if (cmd.args.blitFromTexture.srcTarget == GL_TEXTURE_2D_MULTISAMPLE_ARRAY) {
+                f->glFramebufferTextureLayer(GL_READ_FRAMEBUFFER, GL_COLOR_ATTACHMENT0,
+                                             cmd.args.blitFromTexture.srcTexture,
+                                             cmd.args.blitFromTexture.srcLevel,
+                                             cmd.args.blitFromTexture.srcLayer);
+            } else {
+                f->glFramebufferTexture2D(GL_READ_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, cmd.args.blitFromTexture.srcTarget,
+                                          cmd.args.blitFromTexture.srcTexture, cmd.args.blitFromTexture.srcLevel);
+            }
+            f->glBindFramebuffer(GL_DRAW_FRAMEBUFFER, fbo[1]);
+            if (cmd.args.blitFromTexture.dstTarget == GL_TEXTURE_3D || cmd.args.blitFromTexture.dstTarget == GL_TEXTURE_2D_ARRAY) {
+                f->glFramebufferTextureLayer(GL_DRAW_FRAMEBUFFER, GL_COLOR_ATTACHMENT0,
+                                             cmd.args.blitFromTexture.dstTexture,
+                                             cmd.args.blitFromTexture.dstLevel,
+                                             cmd.args.blitFromTexture.dstLayer);
+            } else {
+                f->glFramebufferTexture2D(GL_DRAW_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, cmd.args.blitFromTexture.dstTarget,
+                                          cmd.args.blitFromTexture.dstTexture, cmd.args.blitFromTexture.dstLevel);
+            }
+            f->glBlitFramebuffer(0, 0, cmd.args.blitFromTexture.w, cmd.args.blitFromTexture.h,
+                                 0, 0, cmd.args.blitFromTexture.w, cmd.args.blitFromTexture.h,
                                  GL_COLOR_BUFFER_BIT,
                                  GL_NEAREST); // Qt 5 used Nearest when resolving samples, stick to that
             f->glBindFramebuffer(GL_FRAMEBUFFER, ctx->defaultFramebufferObject());
@@ -3706,7 +3827,7 @@ void QRhiGles2::bindShaderResources(QGles2CommandBuffer *cbD,
     QVarLengthArray<SeparateSampler, 4> separateSamplerBindings;
 
     for (int i = 0, ie = srbD->m_bindings.size(); i != ie; ++i) {
-        const QRhiShaderResourceBinding::Data *b = srbD->m_bindings.at(i).data();
+        const QRhiShaderResourceBinding::Data *b = shaderResourceBindingData(srbD->m_bindings.at(i));
 
         switch (b->type) {
         case QRhiShaderResourceBinding::UniformBuffer:
@@ -4205,32 +4326,64 @@ void QRhiGles2::endPass(QRhiCommandBuffer *cb, QRhiResourceUpdateBatch *resource
 
     if (cbD->currentTarget->resourceType() == QRhiResource::TextureRenderTarget) {
         QGles2TextureRenderTarget *rtTex = QRHI_RES(QGles2TextureRenderTarget, cbD->currentTarget);
-        if (rtTex->m_desc.cbeginColorAttachments() != rtTex->m_desc.cendColorAttachments()) {
-            // handle only 1 color attachment and only (msaa) renderbuffer
-            const QRhiColorAttachment &colorAtt(*rtTex->m_desc.cbeginColorAttachments());
-            if (colorAtt.resolveTexture()) {
-                Q_ASSERT(colorAtt.renderBuffer());
+        for (auto it = rtTex->m_desc.cbeginColorAttachments(), itEnd = rtTex->m_desc.cendColorAttachments();
+             it != itEnd; ++it)
+        {
+            const QRhiColorAttachment &colorAtt(*it);
+            if (!colorAtt.resolveTexture())
+                continue;
+
+            QGles2Texture *resolveTexD = QRHI_RES(QGles2Texture, colorAtt.resolveTexture());
+            const QSize size = resolveTexD->pixelSize();
+            if (colorAtt.renderBuffer()) {
                 QGles2RenderBuffer *rbD = QRHI_RES(QGles2RenderBuffer, colorAtt.renderBuffer());
-                const QSize size = colorAtt.resolveTexture()->pixelSize();
                 if (rbD->pixelSize() != size) {
                     qWarning("Resolve source (%dx%d) and target (%dx%d) size does not match",
                              rbD->pixelSize().width(), rbD->pixelSize().height(), size.width(), size.height());
                 }
                 QGles2CommandBuffer::Command &cmd(cbD->commands.get());
                 cmd.cmd = QGles2CommandBuffer::Command::BlitFromRenderbuffer;
-                cmd.args.blitFromRb.renderbuffer = rbD->renderbuffer;
-                cmd.args.blitFromRb.w = size.width();
-                cmd.args.blitFromRb.h = size.height();
-                QGles2Texture *colorTexD = QRHI_RES(QGles2Texture, colorAtt.resolveTexture());
-                if (colorTexD->m_flags.testFlag(QRhiTexture::CubeMap))
-                    cmd.args.blitFromRb.target = GL_TEXTURE_CUBE_MAP_POSITIVE_X + uint(colorAtt.resolveLayer());
+                cmd.args.blitFromRenderbuffer.renderbuffer = rbD->renderbuffer;
+                cmd.args.blitFromRenderbuffer.w = size.width();
+                cmd.args.blitFromRenderbuffer.h = size.height();
+                if (resolveTexD->m_flags.testFlag(QRhiTexture::CubeMap))
+                    cmd.args.blitFromRenderbuffer.target = GL_TEXTURE_CUBE_MAP_POSITIVE_X + uint(colorAtt.resolveLayer());
                 else
-                    cmd.args.blitFromRb.target = colorTexD->target;
-                cmd.args.blitFromRb.texture = colorTexD->texture;
-                cmd.args.blitFromRb.dstLevel = colorAtt.resolveLevel();
-                const bool hasZ = colorTexD->m_flags.testFlag(QRhiTexture::ThreeDimensional)
-                    || colorTexD->m_flags.testFlag(QRhiTexture::TextureArray);
-                cmd.args.blitFromRb.dstLayer = hasZ ? colorAtt.resolveLayer() : 0;
+                    cmd.args.blitFromRenderbuffer.target = resolveTexD->target;
+                cmd.args.blitFromRenderbuffer.dstTexture = resolveTexD->texture;
+                cmd.args.blitFromRenderbuffer.dstLevel = colorAtt.resolveLevel();
+                const bool hasZ = resolveTexD->m_flags.testFlag(QRhiTexture::ThreeDimensional)
+                    || resolveTexD->m_flags.testFlag(QRhiTexture::TextureArray);
+                cmd.args.blitFromRenderbuffer.dstLayer = hasZ ? colorAtt.resolveLayer() : 0;
+            } else {
+                Q_ASSERT(colorAtt.texture());
+                QGles2Texture *texD = QRHI_RES(QGles2Texture, colorAtt.texture());
+                if (texD->pixelSize() != size) {
+                    qWarning("Resolve source (%dx%d) and target (%dx%d) size does not match",
+                             texD->pixelSize().width(), texD->pixelSize().height(), size.width(), size.height());
+                }
+                QGles2CommandBuffer::Command &cmd(cbD->commands.get());
+                cmd.cmd = QGles2CommandBuffer::Command::BlitFromTexture;
+                if (texD->m_flags.testFlag(QRhiTexture::CubeMap))
+                    cmd.args.blitFromTexture.srcTarget = GL_TEXTURE_CUBE_MAP_POSITIVE_X + uint(colorAtt.layer());
+                else
+                    cmd.args.blitFromTexture.srcTarget = texD->target;
+                cmd.args.blitFromTexture.srcTexture = texD->texture;
+                cmd.args.blitFromTexture.srcLevel = colorAtt.level();
+                cmd.args.blitFromTexture.srcLayer = 0;
+                if (texD->m_flags.testFlag(QRhiTexture::ThreeDimensional) || texD->m_flags.testFlag(QRhiTexture::TextureArray))
+                    cmd.args.blitFromTexture.srcLayer = colorAtt.layer();
+                cmd.args.blitFromTexture.w = size.width();
+                cmd.args.blitFromTexture.h = size.height();
+                if (resolveTexD->m_flags.testFlag(QRhiTexture::CubeMap))
+                    cmd.args.blitFromTexture.dstTarget = GL_TEXTURE_CUBE_MAP_POSITIVE_X + uint(colorAtt.resolveLayer());
+                else
+                    cmd.args.blitFromTexture.dstTarget = resolveTexD->target;
+                cmd.args.blitFromTexture.dstTexture = resolveTexD->texture;
+                cmd.args.blitFromTexture.dstLevel = colorAtt.resolveLevel();
+                cmd.args.blitFromTexture.dstLayer = 0;
+                if (resolveTexD->m_flags.testFlag(QRhiTexture::ThreeDimensional) || resolveTexD->m_flags.testFlag(QRhiTexture::TextureArray))
+                    cmd.args.blitFromTexture.dstLayer = colorAtt.resolveLayer();
             }
         }
     }
@@ -4325,7 +4478,7 @@ void QRhiGles2::dispatch(QRhiCommandBuffer *cb, int x, int y, int z)
         QGles2ShaderResourceBindings *srbD = QRHI_RES(QGles2ShaderResourceBindings, cbD->currentComputeSrb);
         const int bindingCount = srbD->m_bindings.size();
         for (int i = 0; i < bindingCount; ++i) {
-            const QRhiShaderResourceBinding::Data *b = srbD->m_bindings.at(i).data();
+            const QRhiShaderResourceBinding::Data *b = shaderResourceBindingData(srbD->m_bindings.at(i));
             switch (b->type) {
             case QRhiShaderResourceBinding::ImageLoad:
             case QRhiShaderResourceBinding::ImageStore:
@@ -5135,12 +5288,10 @@ bool QGles2Texture::prepareCreate(QSize *adjustedSize)
         return false;
     }
 
-    m_depth = qMax(1, m_depth);
     if (m_depth > 1 && !is3D) {
         qWarning("Texture cannot have a depth of %d when it is not 3D", m_depth);
         return false;
     }
-    m_arraySize = qMax(0, m_arraySize);
     if (m_arraySize > 0 && !isArray) {
         qWarning("Texture cannot have an array size of %d when it is not an array", m_arraySize);
         return false;
@@ -5151,7 +5302,7 @@ bool QGles2Texture::prepareCreate(QSize *adjustedSize)
     }
 
     target = isCube             ? GL_TEXTURE_CUBE_MAP
-            : m_sampleCount > 1 ? GL_TEXTURE_2D_MULTISAMPLE
+            : m_sampleCount > 1 ? (isArray ? GL_TEXTURE_2D_MULTISAMPLE_ARRAY : GL_TEXTURE_2D_MULTISAMPLE)
                                 : (is3D ? GL_TEXTURE_3D
                                         : (is1D ? (isArray ? GL_TEXTURE_1D_ARRAY : GL_TEXTURE_1D)
                                                 : (isArray ? GL_TEXTURE_2D_ARRAY : GL_TEXTURE_2D)));
@@ -5215,13 +5366,13 @@ bool QGles2Texture::create()
                     const QSize mipSize = rhiD->q->sizeForMipLevel(level, size);
                     if (isArray)
                         rhiD->f->glTexImage2D(target, level, GLint(glintformat), mipSize.width(),
-                                              m_arraySize, 0, glformat, gltype, nullptr);
+                                              qMax(0, m_arraySize), 0, glformat, gltype, nullptr);
                     else
                         rhiD->glTexImage1D(target, level, GLint(glintformat), mipSize.width(), 0,
                                            glformat, gltype, nullptr);
                 }
             } else if (is3D || isArray) {
-                const int layerCount = is3D ? m_depth : m_arraySize;
+                const int layerCount = is3D ? qMax(1, m_depth) : qMax(0, m_arraySize);
                 if (hasMipMaps) {
                     for (int level = 0; level != mipLevelCount; ++level) {
                         const QSize mipSize = rhiD->q->sizeForMipLevel(level, size);
@@ -5253,10 +5404,11 @@ bool QGles2Texture::create()
             if (is1D && !isArray)
                 rhiD->glTexStorage1D(target, mipLevelCount, glsizedintformat, size.width());
             else if (!is1D && (is3D || isArray))
-                rhiD->f->glTexStorage3D(target, mipLevelCount, glsizedintformat, size.width(), size.height(), is3D ? m_depth : m_arraySize);
+                rhiD->f->glTexStorage3D(target, mipLevelCount, glsizedintformat, size.width(), size.height(),
+                                        is3D ? qMax(1, m_depth) : qMax(0, m_arraySize));
             else
                 rhiD->f->glTexStorage2D(target, mipLevelCount, glsizedintformat, size.width(),
-                                        is1D ? m_arraySize : size.height());
+                                        is1D ? qMax(0, m_arraySize) : size.height());
         }
         specified = true;
     } else {
@@ -5447,13 +5599,13 @@ bool QGles2TextureRenderTarget::create()
     if (framebuffer)
         destroy();
 
-    const bool hasColorAttachments = m_desc.cbeginColorAttachments() != m_desc.cendColorAttachments();
+    const bool hasColorAttachments = m_desc.colorAttachmentCount() > 0;
     Q_ASSERT(hasColorAttachments || m_desc.depthTexture());
     Q_ASSERT(!m_desc.depthStencilBuffer() || !m_desc.depthTexture());
     const bool hasDepthStencil = m_desc.depthStencilBuffer() || m_desc.depthTexture();
 
     if (hasColorAttachments) {
-        const int count = m_desc.cendColorAttachments() - m_desc.cbeginColorAttachments();
+        const int count = int(m_desc.colorAttachmentCount());
         if (count > rhiD->caps.maxDrawBuffers) {
             qWarning("QGles2TextureRenderTarget: Too many color attachments (%d, max is %d)",
                      count, rhiD->caps.maxDrawBuffers);
@@ -5597,7 +5749,7 @@ bool QGles2ShaderResourceBindings::create()
 
     hasDynamicOffset = false;
     for (int i = 0, ie = m_bindings.size(); i != ie; ++i) {
-        const QRhiShaderResourceBinding::Data *b = m_bindings.at(i).data();
+        const QRhiShaderResourceBinding::Data *b = QRhiImplementation::shaderResourceBindingData(m_bindings.at(i));
         if (b->type == QRhiShaderResourceBinding::UniformBuffer) {
             if (b->u.ubuf.hasDynamicOffset) {
                 hasDynamicOffset = true;
diff --git a/src/gui/rhi/qrhigles2_p.h b/src/gui/rhi/qrhigles2_p.h
index e3f4fbe7..c48cf9ce 100644
--- a/src/gui/rhi/qrhigles2_p.h
+++ b/src/gui/rhi/qrhigles2_p.h
@@ -1,8 +1,8 @@
-// Copyright (C) 2019 The Qt Company Ltd.
+// Copyright (C) 2023 The Qt Company Ltd.
 // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
 
-#ifndef QRHIGLES2_H
-#define QRHIGLES2_H
+#ifndef QRHIGLES2_P_H
+#define QRHIGLES2_P_H
 
 //
 //  W A R N I N G
@@ -15,32 +15,1074 @@
 // We mean it.
 //
 
-#include <private/qrhi_p.h>
-#include <QtGui/qsurfaceformat.h>
+#include "qrhi_p.h"
+#include <rhi/qshaderdescription.h>
+#include <qopengl.h>
+#include <QByteArray>
+#include <QWindow>
+#include <QPointer>
+#include <QtCore/private/qduplicatetracker_p.h>
+#include <optional>
 
 QT_BEGIN_NAMESPACE
 
-class QOpenGLContext;
-class QOffscreenSurface;
-class QSurface;
-class QWindow;
+class QOpenGLExtensions;
 
-struct Q_GUI_EXPORT QRhiGles2InitParams : public QRhiInitParams
+struct QGles2Buffer : public QRhiBuffer
 {
-    QRhiGles2InitParams();
+    QGles2Buffer(QRhiImplementation *rhi, Type type, UsageFlags usage, quint32 size);
+    ~QGles2Buffer();
+    void destroy() override;
+    bool create() override;
+    QRhiBuffer::NativeBuffer nativeBuffer() override;
+    char *beginFullDynamicBufferUpdateForCurrentFrame() override;
+    void endFullDynamicBufferUpdateForCurrentFrame() override;
 
-    QSurfaceFormat format;
+    quint32 nonZeroSize = 0;
+    GLuint buffer = 0;
+    GLenum targetForDataOps;
+    QByteArray data;
+    enum Access {
+        AccessNone,
+        AccessVertex,
+        AccessIndex,
+        AccessUniform,
+        AccessStorageRead,
+        AccessStorageWrite,
+        AccessStorageReadWrite,
+        AccessUpdate
+    };
+    struct UsageState {
+        Access access;
+    };
+    UsageState usageState;
+    friend class QRhiGles2;
+};
+
+struct QGles2RenderBuffer : public QRhiRenderBuffer
+{
+    QGles2RenderBuffer(QRhiImplementation *rhi, Type type, const QSize &pixelSize,
+                       int sampleCount, QRhiRenderBuffer::Flags flags,
+                       QRhiTexture::Format backingFormatHint);
+    ~QGles2RenderBuffer();
+    void destroy() override;
+    bool create() override;
+    bool createFrom(NativeRenderBuffer src) override;
+    QRhiTexture::Format backingFormat() const override;
+
+    GLuint renderbuffer = 0;
+    GLuint stencilRenderbuffer = 0; // when packed depth-stencil not supported
+    int samples;
+    bool owns = true;
+    uint generation = 0;
+    friend class QRhiGles2;
+};
+
+struct QGles2SamplerData
+{
+    GLenum glminfilter = 0;
+    GLenum glmagfilter = 0;
+    GLenum glwraps = 0;
+    GLenum glwrapt = 0;
+    GLenum glwrapr = 0;
+    GLenum gltexcomparefunc = 0;
+};
+
+inline bool operator==(const QGles2SamplerData &a, const QGles2SamplerData &b)
+{
+    return a.glminfilter == b.glminfilter
+            && a.glmagfilter == b.glmagfilter
+            && a.glwraps == b.glwraps
+            && a.glwrapt == b.glwrapt
+            && a.glwrapr == b.glwrapr
+            && a.gltexcomparefunc == b.gltexcomparefunc;
+}
+
+inline bool operator!=(const QGles2SamplerData &a, const QGles2SamplerData &b)
+{
+    return !(a == b);
+}
+
+struct QGles2Texture : public QRhiTexture
+{
+    QGles2Texture(QRhiImplementation *rhi, Format format, const QSize &pixelSize, int depth,
+                  int arraySize, int sampleCount, Flags flags);
+    ~QGles2Texture();
+    void destroy() override;
+    bool create() override;
+    bool createFrom(NativeTexture src) override;
+    NativeTexture nativeTexture() override;
+
+    bool prepareCreate(QSize *adjustedSize = nullptr);
+
+    GLuint texture = 0;
+    bool owns = true;
+    GLenum target;
+    GLenum glintformat;
+    GLenum glsizedintformat;
+    GLenum glformat;
+    GLenum gltype;
+    QGles2SamplerData samplerState;
+    bool specified = false;
+    bool zeroInitialized = false;
+    int mipLevelCount = 0;
+
+    enum Access {
+        AccessNone,
+        AccessSample,
+        AccessFramebuffer,
+        AccessStorageRead,
+        AccessStorageWrite,
+        AccessStorageReadWrite,
+        AccessUpdate,
+        AccessRead
+    };
+    struct UsageState {
+        Access access;
+    };
+    UsageState usageState;
+
+    uint generation = 0;
+    friend class QRhiGles2;
+};
+
+struct QGles2Sampler : public QRhiSampler
+{
+    QGles2Sampler(QRhiImplementation *rhi, Filter magFilter, Filter minFilter, Filter mipmapMode,
+                  AddressMode u, AddressMode v, AddressMode w);
+    ~QGles2Sampler();
+    void destroy() override;
+    bool create() override;
+
+    QGles2SamplerData d;
+    uint generation = 0;
+    friend class QRhiGles2;
+};
+
+struct QGles2RenderPassDescriptor : public QRhiRenderPassDescriptor
+{
+    QGles2RenderPassDescriptor(QRhiImplementation *rhi);
+    ~QGles2RenderPassDescriptor();
+    void destroy() override;
+    bool isCompatible(const QRhiRenderPassDescriptor *other) const override;
+    QRhiRenderPassDescriptor *newCompatibleRenderPassDescriptor() const override;
+    QVector<quint32> serializedFormat() const override;
+};
+
+struct QGles2RenderTargetData
+{
+    QGles2RenderTargetData(QRhiImplementation *) { }
+
+    bool isValid() const { return rp != nullptr; }
+
+    QGles2RenderPassDescriptor *rp = nullptr;
+    QSize pixelSize;
+    float dpr = 1;
+    int sampleCount = 1;
+    int colorAttCount = 0;
+    int dsAttCount = 0;
+    bool srgbUpdateAndBlend = false;
+    QRhiRenderTargetAttachmentTracker::ResIdList currentResIdList;
+    std::optional<QRhiSwapChain::StereoTargetBuffer> stereoTarget;
+};
+
+struct QGles2SwapChainRenderTarget : public QRhiSwapChainRenderTarget
+{
+    QGles2SwapChainRenderTarget(QRhiImplementation *rhi, QRhiSwapChain *swapchain);
+    ~QGles2SwapChainRenderTarget();
+    void destroy() override;
+
+    QSize pixelSize() const override;
+    float devicePixelRatio() const override;
+    int sampleCount() const override;
+
+    QGles2RenderTargetData d;
+};
+
+struct QGles2TextureRenderTarget : public QRhiTextureRenderTarget
+{
+    QGles2TextureRenderTarget(QRhiImplementation *rhi, const QRhiTextureRenderTargetDescription &desc, Flags flags);
+    ~QGles2TextureRenderTarget();
+    void destroy() override;
+
+    QSize pixelSize() const override;
+    float devicePixelRatio() const override;
+    int sampleCount() const override;
+
+    QRhiRenderPassDescriptor *newCompatibleRenderPassDescriptor() override;
+    bool create() override;
+
+    QGles2RenderTargetData d;
+    GLuint framebuffer = 0;
+    friend class QRhiGles2;
+};
+
+struct QGles2ShaderResourceBindings : public QRhiShaderResourceBindings
+{
+    QGles2ShaderResourceBindings(QRhiImplementation *rhi);
+    ~QGles2ShaderResourceBindings();
+    void destroy() override;
+    bool create() override;
+    void updateResources(UpdateFlags flags) override;
+
+    bool hasDynamicOffset = false;
+    uint generation = 0;
+    friend class QRhiGles2;
+};
+
+struct QGles2UniformDescription
+{
+    QShaderDescription::VariableType type;
+    int glslLocation;
+    int binding;
+    quint32 offset;
+    quint32 size;
+    int arrayDim;
+};
+
+Q_DECLARE_TYPEINFO(QGles2UniformDescription, Q_RELOCATABLE_TYPE);
+
+struct QGles2SamplerDescription
+{
+    int glslLocation;
+    int combinedBinding;
+    int tbinding;
+    int sbinding;
+};
+
+Q_DECLARE_TYPEINFO(QGles2SamplerDescription, Q_RELOCATABLE_TYPE);
+
+using QGles2UniformDescriptionVector = QVarLengthArray<QGles2UniformDescription, 8>;
+using QGles2SamplerDescriptionVector = QVarLengthArray<QGles2SamplerDescription, 4>;
+
+struct QGles2UniformState
+{
+    static constexpr int MAX_TRACKED_LOCATION = 1023;
+    int componentCount;
+    float v[4];
+};
+
+struct QGles2GraphicsPipeline : public QRhiGraphicsPipeline
+{
+    QGles2GraphicsPipeline(QRhiImplementation *rhi);
+    ~QGles2GraphicsPipeline();
+    void destroy() override;
+    bool create() override;
+
+    GLuint program = 0;
+    GLenum drawMode = GL_TRIANGLES;
+    QGles2UniformDescriptionVector uniforms;
+    QGles2SamplerDescriptionVector samplers;
+    QGles2UniformState uniformState[QGles2UniformState::MAX_TRACKED_LOCATION + 1];
+    QRhiShaderResourceBindings *currentSrb = nullptr;
+    uint currentSrbGeneration = 0;
+    uint generation = 0;
+    friend class QRhiGles2;
+};
+
+struct QGles2ComputePipeline : public QRhiComputePipeline
+{
+    QGles2ComputePipeline(QRhiImplementation *rhi);
+    ~QGles2ComputePipeline();
+    void destroy() override;
+    bool create() override;
+
+    GLuint program = 0;
+    QGles2UniformDescriptionVector uniforms;
+    QGles2SamplerDescriptionVector samplers;
+    QGles2UniformState uniformState[QGles2UniformState::MAX_TRACKED_LOCATION + 1];
+    QRhiShaderResourceBindings *currentSrb = nullptr;
+    uint currentSrbGeneration = 0;
+    uint generation = 0;
+    friend class QRhiGles2;
+};
+
+struct QGles2CommandBuffer : public QRhiCommandBuffer
+{
+    QGles2CommandBuffer(QRhiImplementation *rhi);
+    ~QGles2CommandBuffer();
+    void destroy() override;
+
+    // keep at a reasonably low value otherwise sizeof Command explodes
+    static const int MAX_DYNAMIC_OFFSET_COUNT = 8;
+
+    struct Command {
+        enum Cmd {
+            BeginFrame,
+            EndFrame,
+            ResetFrame,
+            Viewport,
+            Scissor,
+            BlendConstants,
+            StencilRef,
+            BindVertexBuffer,
+            BindIndexBuffer,
+            Draw,
+            DrawIndexed,
+            BindGraphicsPipeline,
+            BindShaderResources,
+            BindFramebuffer,
+            Clear,
+            BufferSubData,
+            GetBufferSubData,
+            CopyTex,
+            ReadPixels,
+            SubImage,
+            CompressedImage,
+            CompressedSubImage,
+            BlitFromRenderbuffer,
+            BlitFromTexture,
+            GenMip,
+            BindComputePipeline,
+            Dispatch,
+            BarriersForPass,
+            Barrier
+        };
+        Cmd cmd;
+
+        // QRhi*/QGles2* references should be kept at minimum (so no
+        // QRhiTexture/Buffer/etc. pointers).
+        union Args {
+            struct {
+                float x, y, w, h;
+                float d0, d1;
+            } viewport;
+            struct {
+                int x, y, w, h;
+            } scissor;
+            struct {
+                float r, g, b, a;
+            } blendConstants;
+            struct {
+                quint32 ref;
+                QRhiGraphicsPipeline *ps;
+            } stencilRef;
+            struct {
+                QRhiGraphicsPipeline *ps;
+                GLuint buffer;
+                quint32 offset;
+                int binding;
+            } bindVertexBuffer;
+            struct {
+                GLuint buffer;
+                quint32 offset;
+                GLenum type;
+            } bindIndexBuffer;
+            struct {
+                QRhiGraphicsPipeline *ps;
+                quint32 vertexCount;
+                quint32 firstVertex;
+                quint32 instanceCount;
+                quint32 baseInstance;
+            } draw;
+            struct {
+                QRhiGraphicsPipeline *ps;
+                quint32 indexCount;
+                quint32 firstIndex;
+                quint32 instanceCount;
+                quint32 baseInstance;
+                qint32 baseVertex;
+            } drawIndexed;
+            struct {
+                QRhiGraphicsPipeline *ps;
+            } bindGraphicsPipeline;
+            struct {
+                QRhiGraphicsPipeline *maybeGraphicsPs;
+                QRhiComputePipeline *maybeComputePs;
+                QRhiShaderResourceBindings *srb;
+                int dynamicOffsetCount;
+                uint dynamicOffsetPairs[MAX_DYNAMIC_OFFSET_COUNT * 2]; // binding, offset
+            } bindShaderResources;
+            struct {
+                GLbitfield mask;
+                float c[4];
+                float d;
+                quint32 s;
+            } clear;
+            struct {
+                GLuint fbo;
+                bool srgb;
+                int colorAttCount;
+                bool stereo;
+                QRhiSwapChain::StereoTargetBuffer stereoTarget;
+            } bindFramebuffer;
+            struct {
+                GLenum target;
+                GLuint buffer;
+                int offset;
+                int size;
+                const void *data; // must come from retainData()
+            } bufferSubData;
+            struct {
+                QRhiReadbackResult *result;
+                GLenum target;
+                GLuint buffer;
+                int offset;
+                int size;
+            } getBufferSubData;
+            struct {
+                GLenum srcTarget;
+                GLenum srcFaceTarget;
+                GLuint srcTexture;
+                int srcLevel;
+                int srcX;
+                int srcY;
+                int srcZ;
+                GLenum dstTarget;
+                GLuint dstTexture;
+                GLenum dstFaceTarget;
+                int dstLevel;
+                int dstX;
+                int dstY;
+                int dstZ;
+                int w;
+                int h;
+            } copyTex;
+            struct {
+                QRhiReadbackResult *result;
+                GLuint texture;
+                int w;
+                int h;
+                QRhiTexture::Format format;
+                GLenum readTarget;
+                int level;
+                int slice3D;
+            } readPixels;
+            struct {
+                GLenum target;
+                GLuint texture;
+                GLenum faceTarget;
+                int level;
+                int dx;
+                int dy;
+                int dz;
+                int w;
+                int h;
+                GLenum glformat;
+                GLenum gltype;
+                int rowStartAlign;
+                int rowLength;
+                const void *data; // must come from retainImage()
+            } subImage;
+            struct {
+                GLenum target;
+                GLuint texture;
+                GLenum faceTarget;
+                int level;
+                GLenum glintformat;
+                int w;
+                int h;
+                int depth;
+                int size;
+                const void *data; // must come from retainData()
+            } compressedImage;
+            struct {
+                GLenum target;
+                GLuint texture;
+                GLenum faceTarget;
+                int level;
+                int dx;
+                int dy;
+                int dz;
+                int w;
+                int h;
+                GLenum glintformat;
+                int size;
+                const void *data; // must come from retainData()
+            } compressedSubImage;
+            struct {
+                GLuint renderbuffer;
+                int w;
+                int h;
+                GLenum target;
+                GLuint dstTexture;
+                int dstLevel;
+                int dstLayer;
+            } blitFromRenderbuffer;
+            struct {
+                GLenum srcTarget;
+                GLuint srcTexture;
+                int srcLevel;
+                int srcLayer;
+                int w;
+                int h;
+                GLenum dstTarget;
+                GLuint dstTexture;
+                int dstLevel;
+                int dstLayer;
+            } blitFromTexture;
+            struct {
+                GLenum target;
+                GLuint texture;
+            } genMip;
+            struct {
+                QRhiComputePipeline *ps;
+            } bindComputePipeline;
+            struct {
+                GLuint x;
+                GLuint y;
+                GLuint z;
+            } dispatch;
+            struct {
+                int trackerIndex;
+            } barriersForPass;
+            struct {
+                GLbitfield barriers;
+            } barrier;
+        } args;
+    };
+
+    enum PassType {
+        NoPass,
+        RenderPass,
+        ComputePass
+    };
+
+    QRhiBackendCommandList<Command> commands;
+    QVarLengthArray<QRhiPassResourceTracker, 8> passResTrackers;
+    int currentPassResTrackerIndex;
+
+    PassType recordingPass;
+    bool passNeedsResourceTracking;
+    QRhiRenderTarget *currentTarget;
+    QRhiGraphicsPipeline *currentGraphicsPipeline;
+    QRhiComputePipeline *currentComputePipeline;
+    uint currentPipelineGeneration;
+    QRhiShaderResourceBindings *currentGraphicsSrb;
+    QRhiShaderResourceBindings *currentComputeSrb;
+    uint currentSrbGeneration;
+
+    struct GraphicsPassState {
+        bool valid = false;
+        bool scissor;
+        bool cullFace;
+        GLenum cullMode;
+        GLenum frontFace;
+        bool blendEnabled;
+        struct ColorMask { bool r, g, b, a; } colorMask;
+        struct Blend {
+            GLenum srcColor;
+            GLenum dstColor;
+            GLenum srcAlpha;
+            GLenum dstAlpha;
+            GLenum opColor;
+            GLenum opAlpha;
+        } blend;
+        bool depthTest;
+        bool depthWrite;
+        GLenum depthFunc;
+        bool stencilTest;
+        GLuint stencilReadMask;
+        GLuint stencilWriteMask;
+        struct StencilFace {
+            GLenum func;
+            GLenum failOp;
+            GLenum zfailOp;
+            GLenum zpassOp;
+        } stencil[2]; // front, back
+        bool polyOffsetFill;
+        float polyOffsetFactor;
+        float polyOffsetUnits;
+        float lineWidth;
+        int cpCount;
+        GLenum polygonMode;
+        void reset() { valid = false; }
+        struct {
+            // not part of QRhiGraphicsPipeline but used by setGraphicsPipeline()
+            GLint stencilRef = 0;
+        } dynamic;
+    } graphicsPassState;
+
+    struct ComputePassState {
+        enum Access {
+            Read = 0x01,
+            Write = 0x02
+        };
+        QHash<QRhiResource *, QPair<int, bool> > writtenResources;
+        void reset() {
+            writtenResources.clear();
+        }
+    } computePassState;
+
+    struct TextureUnitState {
+        void *ps;
+        uint psGeneration;
+        uint texture;
+    } textureUnitState[16];
+
+    QVarLengthArray<QByteArray, 4> dataRetainPool;
+    QVarLengthArray<QRhiBufferData, 4> bufferDataRetainPool;
+    QVarLengthArray<QImage, 4> imageRetainPool;
+
+    // relies heavily on implicit sharing (no copies of the actual data will be made)
+    const void *retainData(const QByteArray &data) {
+        dataRetainPool.append(data);
+        return dataRetainPool.last().constData();
+    }
+    const uchar *retainBufferData(const QRhiBufferData &data) {
+        bufferDataRetainPool.append(data);
+        return reinterpret_cast<const uchar *>(bufferDataRetainPool.last().constData());
+    }
+    const void *retainImage(const QImage &image) {
+        imageRetainPool.append(image);
+        return imageRetainPool.last().constBits();
+    }
+    void resetCommands() {
+        commands.reset();
+        dataRetainPool.clear();
+        bufferDataRetainPool.clear();
+        imageRetainPool.clear();
+
+        passResTrackers.clear();
+        currentPassResTrackerIndex = -1;
+    }
+    void resetState() {
+        recordingPass = NoPass;
+        passNeedsResourceTracking = true;
+        currentTarget = nullptr;
+        resetCommands();
+        resetCachedState();
+    }
+    void resetCachedState() {
+        currentGraphicsPipeline = nullptr;
+        currentComputePipeline = nullptr;
+        currentPipelineGeneration = 0;
+        currentGraphicsSrb = nullptr;
+        currentComputeSrb = nullptr;
+        currentSrbGeneration = 0;
+        graphicsPassState.reset();
+        computePassState.reset();
+        memset(textureUnitState, 0, sizeof(textureUnitState));
+    }
+};
+
+inline bool operator==(const QGles2CommandBuffer::GraphicsPassState::StencilFace &a,
+                       const QGles2CommandBuffer::GraphicsPassState::StencilFace &b)
+{
+    return a.func == b.func
+            && a.failOp == b.failOp
+            && a.zfailOp == b.zfailOp
+            && a.zpassOp == b.zpassOp;
+}
+
+inline bool operator!=(const QGles2CommandBuffer::GraphicsPassState::StencilFace &a,
+                       const QGles2CommandBuffer::GraphicsPassState::StencilFace &b)
+{
+    return !(a == b);
+}
+
+inline bool operator==(const QGles2CommandBuffer::GraphicsPassState::ColorMask &a,
+                       const QGles2CommandBuffer::GraphicsPassState::ColorMask &b)
+{
+    return a.r == b.r && a.g == b.g && a.b == b.b && a.a == b.a;
+}
+
+inline bool operator!=(const QGles2CommandBuffer::GraphicsPassState::ColorMask &a,
+                       const QGles2CommandBuffer::GraphicsPassState::ColorMask &b)
+{
+    return !(a == b);
+}
+
+inline bool operator==(const QGles2CommandBuffer::GraphicsPassState::Blend &a,
+                       const QGles2CommandBuffer::GraphicsPassState::Blend &b)
+{
+    return a.srcColor == b.srcColor
+            && a.dstColor == b.dstColor
+            && a.srcAlpha == b.srcAlpha
+            && a.dstAlpha == b.dstAlpha
+            && a.opColor == b.opColor
+            && a.opAlpha == b.opAlpha;
+}
+
+inline bool operator!=(const QGles2CommandBuffer::GraphicsPassState::Blend &a,
+                       const QGles2CommandBuffer::GraphicsPassState::Blend &b)
+{
+    return !(a == b);
+}
+
+struct QGles2SwapChain : public QRhiSwapChain
+{
+    QGles2SwapChain(QRhiImplementation *rhi);
+    ~QGles2SwapChain();
+    void destroy() override;
+
+    QRhiCommandBuffer *currentFrameCommandBuffer() override;
+    QRhiRenderTarget *currentFrameRenderTarget() override;
+    QRhiRenderTarget *currentFrameRenderTarget(StereoTargetBuffer targetBuffer) override;
+
+    QSize surfacePixelSize() override;
+    bool isFormatSupported(Format f) override;
+
+    QRhiRenderPassDescriptor *newCompatibleRenderPassDescriptor() override;
+    bool createOrResize() override;
+
+    void initSwapChainRenderTarget(QGles2SwapChainRenderTarget *rt);
+
+    QSurface *surface = nullptr;
+    QSize pixelSize;
+    QGles2SwapChainRenderTarget rt;
+    QGles2SwapChainRenderTarget rtLeft;
+    QGles2SwapChainRenderTarget rtRight;
+    QGles2CommandBuffer cb;
+    int frameCount = 0;
+};
+
+class QRhiGles2 : public QRhiImplementation
+{
+public:
+    QRhiGles2(QRhiGles2InitParams *params, QRhiGles2NativeHandles *importDevice = nullptr);
+
+    bool create(QRhi::Flags flags) override;
+    void destroy() override;
+
+    QRhiGraphicsPipeline *createGraphicsPipeline() override;
+    QRhiComputePipeline *createComputePipeline() override;
+    QRhiShaderResourceBindings *createShaderResourceBindings() override;
+    QRhiBuffer *createBuffer(QRhiBuffer::Type type,
+                             QRhiBuffer::UsageFlags usage,
+                             quint32 size) override;
+    QRhiRenderBuffer *createRenderBuffer(QRhiRenderBuffer::Type type,
+                                         const QSize &pixelSize,
+                                         int sampleCount,
+                                         QRhiRenderBuffer::Flags flags,
+                                         QRhiTexture::Format backingFormatHint) override;
+    QRhiTexture *createTexture(QRhiTexture::Format format,
+                               const QSize &pixelSize,
+                               int depth,
+                               int arraySize,
+                               int sampleCount,
+                               QRhiTexture::Flags flags) override;
+    QRhiSampler *createSampler(QRhiSampler::Filter magFilter,
+                               QRhiSampler::Filter minFilter,
+                               QRhiSampler::Filter mipmapMode,
+                               QRhiSampler:: AddressMode u,
+                               QRhiSampler::AddressMode v,
+                               QRhiSampler::AddressMode w) override;
+
+    QRhiTextureRenderTarget *createTextureRenderTarget(const QRhiTextureRenderTargetDescription &desc,
+                                                       QRhiTextureRenderTarget::Flags flags) override;
+
+    QRhiSwapChain *createSwapChain() override;
+    QRhi::FrameOpResult beginFrame(QRhiSwapChain *swapChain, QRhi::BeginFrameFlags flags) override;
+    QRhi::FrameOpResult endFrame(QRhiSwapChain *swapChain, QRhi::EndFrameFlags flags) override;
+    QRhi::FrameOpResult beginOffscreenFrame(QRhiCommandBuffer **cb, QRhi::BeginFrameFlags flags) override;
+    QRhi::FrameOpResult endOffscreenFrame(QRhi::EndFrameFlags flags) override;
+    QRhi::FrameOpResult finish() override;
+
+    void resourceUpdate(QRhiCommandBuffer *cb, QRhiResourceUpdateBatch *resourceUpdates) override;
+
+    void beginPass(QRhiCommandBuffer *cb,
+                   QRhiRenderTarget *rt,
+                   const QColor &colorClearValue,
+                   const QRhiDepthStencilClearValue &depthStencilClearValue,
+                   QRhiResourceUpdateBatch *resourceUpdates,
+                   QRhiCommandBuffer::BeginPassFlags flags) override;
+    void endPass(QRhiCommandBuffer *cb, QRhiResourceUpdateBatch *resourceUpdates) override;
+
+    void setGraphicsPipeline(QRhiCommandBuffer *cb,
+                             QRhiGraphicsPipeline *ps) override;
+
+    void setShaderResources(QRhiCommandBuffer *cb,
+                            QRhiShaderResourceBindings *srb,
+                            int dynamicOffsetCount,
+                            const QRhiCommandBuffer::DynamicOffset *dynamicOffsets) override;
+
+    void setVertexInput(QRhiCommandBuffer *cb,
+                        int startBinding, int bindingCount, const QRhiCommandBuffer::VertexInput *bindings,
+                        QRhiBuffer *indexBuf, quint32 indexOffset,
+                        QRhiCommandBuffer::IndexFormat indexFormat) override;
+
+    void setViewport(QRhiCommandBuffer *cb, const QRhiViewport &viewport) override;
+    void setScissor(QRhiCommandBuffer *cb, const QRhiScissor &scissor) override;
+    void setBlendConstants(QRhiCommandBuffer *cb, const QColor &c) override;
+    void setStencilRef(QRhiCommandBuffer *cb, quint32 refValue) override;
+
+    void draw(QRhiCommandBuffer *cb, quint32 vertexCount,
+              quint32 instanceCount, quint32 firstVertex, quint32 firstInstance) override;
+
+    void drawIndexed(QRhiCommandBuffer *cb, quint32 indexCount,
+                     quint32 instanceCount, quint32 firstIndex,
+                     qint32 vertexOffset, quint32 firstInstance) override;
+
+    void debugMarkBegin(QRhiCommandBuffer *cb, const QByteArray &name) override;
+    void debugMarkEnd(QRhiCommandBuffer *cb) override;
+    void debugMarkMsg(QRhiCommandBuffer *cb, const QByteArray &msg) override;
+
+    void beginComputePass(QRhiCommandBuffer *cb,
+                          QRhiResourceUpdateBatch *resourceUpdates,
+                          QRhiCommandBuffer::BeginPassFlags flags) override;
+    void endComputePass(QRhiCommandBuffer *cb, QRhiResourceUpdateBatch *resourceUpdates) override;
+    void setComputePipeline(QRhiCommandBuffer *cb, QRhiComputePipeline *ps) override;
+    void dispatch(QRhiCommandBuffer *cb, int x, int y, int z) override;
+
+    const QRhiNativeHandles *nativeHandles(QRhiCommandBuffer *cb) override;
+    void beginExternal(QRhiCommandBuffer *cb) override;
+    void endExternal(QRhiCommandBuffer *cb) override;
+    double lastCompletedGpuTime(QRhiCommandBuffer *cb) override;
+
+    QList<int> supportedSampleCounts() const override;
+    int ubufAlignment() const override;
+    bool isYUpInFramebuffer() const override;
+    bool isYUpInNDC() const override;
+    bool isClipDepthZeroToOne() const override;
+    QMatrix4x4 clipSpaceCorrMatrix() const override;
+    bool isTextureFormatSupported(QRhiTexture::Format format, QRhiTexture::Flags flags) const override;
+    bool isFeatureSupported(QRhi::Feature feature) const override;
+    int resourceLimit(QRhi::ResourceLimit limit) const override;
+    const QRhiNativeHandles *nativeHandles() override;
+    QRhiDriverInfo driverInfo() const override;
+    QRhiStats statistics() override;
+    bool makeThreadLocalNativeContextCurrent() override;
+    void releaseCachedResources() override;
+    bool isDeviceLost() const override;
+
+    QByteArray pipelineCacheData() override;
+    void setPipelineCacheData(const QByteArray &data) override;
+
+    bool ensureContext(QSurface *surface = nullptr) const;
+    QSurface *evaluateFallbackSurface() const;
+    void executeDeferredReleases();
+    void trackedBufferBarrier(QGles2CommandBuffer *cbD, QGles2Buffer *bufD, QGles2Buffer::Access access);
+    void trackedImageBarrier(QGles2CommandBuffer *cbD, QGles2Texture *texD, QGles2Texture::Access access);
+    void enqueueSubresUpload(QGles2Texture *texD, QGles2CommandBuffer *cbD,
+                             int layer, int level, const QRhiTextureSubresourceUploadDescription &subresDesc);
+    void enqueueResourceUpdates(QRhiCommandBuffer *cb, QRhiResourceUpdateBatch *resourceUpdates);
+    void trackedRegisterBuffer(QRhiPassResourceTracker *passResTracker,
+                               QGles2Buffer *bufD,
+                               QRhiPassResourceTracker::BufferAccess access,
+                               QRhiPassResourceTracker::BufferStage stage);
+    void trackedRegisterTexture(QRhiPassResourceTracker *passResTracker,
+                                QGles2Texture *texD,
+                                QRhiPassResourceTracker::TextureAccess access,
+                                QRhiPassResourceTracker::TextureStage stage);
+    void executeCommandBuffer(QRhiCommandBuffer *cb);
+    void executeBindGraphicsPipeline(QGles2CommandBuffer *cbD, QGles2GraphicsPipeline *psD);
+    void bindCombinedSampler(QGles2CommandBuffer *cbD, QGles2Texture *texD, QGles2Sampler *samplerD,
+                             void *ps, uint psGeneration, int glslLocation,
+                             int *texUnit, bool *activeTexUnitAltered);
+    void bindShaderResources(QGles2CommandBuffer *cbD,
+                             QRhiGraphicsPipeline *maybeGraphicsPs, QRhiComputePipeline *maybeComputePs,
+                             QRhiShaderResourceBindings *srb,
+                             const uint *dynOfsPairs, int dynOfsCount);
+    QGles2RenderTargetData *enqueueBindFramebuffer(QRhiRenderTarget *rt, QGles2CommandBuffer *cbD,
+                                                   bool *wantsColorClear = nullptr, bool *wantsDsClear = nullptr);
+    void enqueueBarriersForPass(QGles2CommandBuffer *cbD);
+    int effectiveSampleCount(int sampleCount) const;
+    QByteArray shaderSource(const QRhiShaderStage &shaderStage, QShaderVersion *shaderVersion);
+    bool compileShader(GLuint program, const QRhiShaderStage &shaderStage, QShaderVersion *shaderVersion);
+    bool linkProgram(GLuint program);
+    void registerUniformIfActive(const QShaderDescription::BlockVariable &var,
+                                 const QByteArray &namePrefix, int binding, int baseOffset,
+                                 GLuint program,
+                                 QDuplicateTracker<int, 256> *activeUniformLocations,
+                                 QGles2UniformDescriptionVector *dst);
+    void gatherUniforms(GLuint program, const QShaderDescription::UniformBlock &ub,
+                        QDuplicateTracker<int, 256> *activeUniformLocations, QGles2UniformDescriptionVector *dst);
+    void gatherSamplers(GLuint program, const QShaderDescription::InOutVariable &v,
+                        QGles2SamplerDescriptionVector *dst);
+    void gatherGeneratedSamplers(GLuint program,
+                                 const QShader::SeparateToCombinedImageSamplerMapping &mapping,
+                                 QGles2SamplerDescriptionVector *dst);
+    void sanityCheckVertexFragmentInterface(const QShaderDescription &vsDesc, const QShaderDescription &fsDesc);
+    bool isProgramBinaryDiskCacheEnabled() const;
+
+    enum ProgramCacheResult {
+        ProgramCacheHit,
+        ProgramCacheMiss,
+        ProgramCacheError
+    };
+    ProgramCacheResult tryLoadFromDiskOrPipelineCache(const QRhiShaderStage *stages,
+                                                      int stageCount,
+                                                      GLuint program,
+                                                      const QVector<QShaderDescription::InOutVariable> &inputVars,
+                                                      QByteArray *cacheKey);
+    void trySaveToDiskCache(GLuint program, const QByteArray &cacheKey);
+    void trySaveToPipelineCache(GLuint program, const QByteArray &cacheKey, bool force = false);
+
+    QRhi::Flags rhiFlags;
+    QOpenGLContext *ctx = nullptr;
+    bool importedContext = false;
+    QSurfaceFormat requestedFormat;
     QSurface *fallbackSurface = nullptr;
-    QWindow *window = nullptr;
-    QOpenGLContext *shareContext = nullptr;
+    QPointer<QWindow> maybeWindow = nullptr;
+    QOpenGLContext *maybeShareContext = nullptr;
+    mutable bool needsMakeCurrentDueToSwap = false;
+    QOpenGLExtensions *f = nullptr;
+    void (QOPENGLF_APIENTRYP glPolygonMode) (GLenum, GLenum) = nullptr;
+    void(QOPENGLF_APIENTRYP glTexImage1D)(GLenum, GLint, GLint, GLsizei, GLint, GLenum, GLenum,
+                                          const void *) = nullptr;
+    void(QOPENGLF_APIENTRYP glTexStorage1D)(GLenum, GLint, GLenum, GLsizei) = nullptr;
+    void(QOPENGLF_APIENTRYP glTexSubImage1D)(GLenum, GLint, GLint, GLsizei, GLenum, GLenum,
+                                             const GLvoid *) = nullptr;
+    void(QOPENGLF_APIENTRYP glCopyTexSubImage1D)(GLenum, GLint, GLint, GLint, GLint,
+                                                 GLsizei) = nullptr;
+    void(QOPENGLF_APIENTRYP glCompressedTexImage1D)(GLenum, GLint, GLenum, GLsizei, GLint, GLsizei,
+                                                    const GLvoid *) = nullptr;
+    void(QOPENGLF_APIENTRYP glCompressedTexSubImage1D)(GLenum, GLint, GLint, GLsizei, GLenum,
+                                                       GLsizei, const GLvoid *) = nullptr;
+    void(QOPENGLF_APIENTRYP glFramebufferTexture1D)(GLenum, GLenum, GLenum, GLuint,
+                                                    GLint) = nullptr;
 
-    static QOffscreenSurface *newFallbackSurface(const QSurfaceFormat &format = QSurfaceFormat::defaultFormat());
+    uint vao = 0;
+    struct Caps {
+        Caps()
+            : ctxMajor(2),
+              ctxMinor(0),
+              maxTextureSize(2048),
+              maxDrawBuffers(4),
+              maxSamples(16),
+              maxTextureArraySize(0),
+              maxThreadGroupsPerDimension(0),
+              maxThreadsPerThreadGroup(0),
+              maxThreadGroupsX(0),
+              maxThreadGroupsY(0),
+              maxThreadGroupsZ(0),
+              maxUniformVectors(4096),
+              maxVertexInputs(8),
+              maxVertexOutputs(8),
+              msaaRenderBuffer(false),
+              multisampledTexture(false),
+              npotTextureFull(true),
+              gles(false),
+              fixedIndexPrimitiveRestart(false),
+              bgraExternalFormat(false),
+              bgraInternalFormat(false),
+              r8Format(false),
+              r16Format(false),
+              floatFormats(false),
+              rgb10Formats(false),
+              depthTexture(false),
+              packedDepthStencil(false),
+              needsDepthStencilCombinedAttach(false),
+              srgbCapableDefaultFramebuffer(false),
+              coreProfile(false),
+              uniformBuffers(false),
+              elementIndexUint(false),
+              depth24(false),
+              rgba8Format(false),
+              instancing(false),
+              baseVertex(false),
+              compute(false),
+              textureCompareMode(false),
+              properMapBuffer(false),
+              nonBaseLevelFramebufferTexture(false),
+              texelFetch(false),
+              intAttributes(true),
+              screenSpaceDerivatives(false),
+              programBinary(false),
+              texture3D(false),
+              tessellation(false),
+              geometryShader(false),
+              texture1D(false),
+              hasDrawBuffersFunc(false),
+              halfAttributes(false)
+        { }
+        int ctxMajor;
+        int ctxMinor;
+        int maxTextureSize;
+        int maxDrawBuffers;
+        int maxSamples;
+        int maxTextureArraySize;
+        int maxThreadGroupsPerDimension;
+        int maxThreadsPerThreadGroup;
+        int maxThreadGroupsX;
+        int maxThreadGroupsY;
+        int maxThreadGroupsZ;
+        int maxUniformVectors;
+        int maxVertexInputs;
+        int maxVertexOutputs;
+        // Multisample fb and blit are supported (GLES 3.0 or OpenGL 3.x). Not
+        // the same as multisample textures!
+        uint msaaRenderBuffer : 1;
+        uint multisampledTexture : 1;
+        uint npotTextureFull : 1;
+        uint gles : 1;
+        uint fixedIndexPrimitiveRestart : 1;
+        uint bgraExternalFormat : 1;
+        uint bgraInternalFormat : 1;
+        uint r8Format : 1;
+        uint r16Format : 1;
+        uint floatFormats : 1;
+        uint rgb10Formats : 1;
+        uint depthTexture : 1;
+        uint packedDepthStencil : 1;
+        uint needsDepthStencilCombinedAttach : 1;
+        uint srgbCapableDefaultFramebuffer : 1;
+        uint coreProfile : 1;
+        uint uniformBuffers : 1;
+        uint elementIndexUint : 1;
+        uint depth24 : 1;
+        uint rgba8Format : 1;
+        uint instancing : 1;
+        uint baseVertex : 1;
+        uint compute : 1;
+        uint textureCompareMode : 1;
+        uint properMapBuffer : 1;
+        uint nonBaseLevelFramebufferTexture : 1;
+        uint texelFetch : 1;
+        uint intAttributes : 1;
+        uint screenSpaceDerivatives : 1;
+        uint programBinary : 1;
+        uint texture3D : 1;
+        uint tessellation : 1;
+        uint geometryShader : 1;
+        uint texture1D : 1;
+        uint hasDrawBuffersFunc : 1;
+        uint halfAttributes : 1;
+    } caps;
+    QGles2SwapChain *currentSwapChain = nullptr;
+    QSet<GLint> supportedCompressedFormats;
+    mutable QList<int> supportedSampleCountList;
+    QRhiGles2NativeHandles nativeHandlesStruct;
+    QRhiDriverInfo driverInfoStruct;
+    mutable bool contextLost = false;
+
+    struct DeferredReleaseEntry {
+        enum Type {
+            Buffer,
+            Pipeline,
+            Texture,
+            RenderBuffer,
+            TextureRenderTarget
+        };
+        Type type;
+        union {
+            struct {
+                GLuint buffer;
+            } buffer;
+            struct {
+                GLuint program;
+            } pipeline;
+            struct {
+                GLuint texture;
+            } texture;
+            struct {
+                GLuint renderbuffer;
+                GLuint renderbuffer2;
+            } renderbuffer;
+            struct {
+                GLuint framebuffer;
+            } textureRenderTarget;
+        };
+    };
+    QList<DeferredReleaseEntry> releaseQueue;
+
+    struct OffscreenFrame {
+        OffscreenFrame(QRhiImplementation *rhi) : cbWrapper(rhi) { }
+        bool active = false;
+        QGles2CommandBuffer cbWrapper;
+    } ofr;
+
+    QHash<QRhiShaderStage, uint> m_shaderCache;
+
+    struct PipelineCacheData {
+        quint32 format;
+        QByteArray data;
+    };
+    QHash<QByteArray, PipelineCacheData> m_pipelineCache;
 };
 
-struct Q_GUI_EXPORT QRhiGles2NativeHandles : public QRhiNativeHandles
-{
-    QOpenGLContext *context = nullptr;
-};
+Q_DECLARE_TYPEINFO(QRhiGles2::DeferredReleaseEntry, Q_RELOCATABLE_TYPE);
 
 QT_END_NAMESPACE
 
diff --git a/src/gui/rhi/qrhigles2_p_p.h b/src/gui/rhi/qrhigles2_p_p.h
deleted file mode 100644
index 7caec5f7..00000000
--- a/src/gui/rhi/qrhigles2_p_p.h
+++ /dev/null
@@ -1,1074 +0,0 @@
-// Copyright (C) 2019 The Qt Company Ltd.
-// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
-
-#ifndef QRHIGLES2_P_H
-#define QRHIGLES2_P_H
-
-//
-//  W A R N I N G
-//  -------------
-//
-// This file is not part of the Qt API.  It exists purely as an
-// implementation detail.  This header file may change from version to
-// version without notice, or even be removed.
-//
-// We mean it.
-//
-
-#include "qrhigles2_p.h"
-#include "qrhi_p_p.h"
-#include "qshaderdescription_p.h"
-#include <qopengl.h>
-#include <QByteArray>
-#include <QWindow>
-#include <QPointer>
-#include <QtCore/private/qduplicatetracker_p.h>
-#include <optional>
-
-QT_BEGIN_NAMESPACE
-
-class QOpenGLExtensions;
-
-struct QGles2Buffer : public QRhiBuffer
-{
-    QGles2Buffer(QRhiImplementation *rhi, Type type, UsageFlags usage, quint32 size);
-    ~QGles2Buffer();
-    void destroy() override;
-    bool create() override;
-    QRhiBuffer::NativeBuffer nativeBuffer() override;
-    char *beginFullDynamicBufferUpdateForCurrentFrame() override;
-    void endFullDynamicBufferUpdateForCurrentFrame() override;
-
-    quint32 nonZeroSize = 0;
-    GLuint buffer = 0;
-    GLenum targetForDataOps;
-    QByteArray data;
-    enum Access {
-        AccessNone,
-        AccessVertex,
-        AccessIndex,
-        AccessUniform,
-        AccessStorageRead,
-        AccessStorageWrite,
-        AccessStorageReadWrite,
-        AccessUpdate
-    };
-    struct UsageState {
-        Access access;
-    };
-    UsageState usageState;
-    friend class QRhiGles2;
-};
-
-struct QGles2RenderBuffer : public QRhiRenderBuffer
-{
-    QGles2RenderBuffer(QRhiImplementation *rhi, Type type, const QSize &pixelSize,
-                       int sampleCount, QRhiRenderBuffer::Flags flags,
-                       QRhiTexture::Format backingFormatHint);
-    ~QGles2RenderBuffer();
-    void destroy() override;
-    bool create() override;
-    bool createFrom(NativeRenderBuffer src) override;
-    QRhiTexture::Format backingFormat() const override;
-
-    GLuint renderbuffer = 0;
-    GLuint stencilRenderbuffer = 0; // when packed depth-stencil not supported
-    int samples;
-    bool owns = true;
-    uint generation = 0;
-    friend class QRhiGles2;
-};
-
-struct QGles2SamplerData
-{
-    GLenum glminfilter = 0;
-    GLenum glmagfilter = 0;
-    GLenum glwraps = 0;
-    GLenum glwrapt = 0;
-    GLenum glwrapr = 0;
-    GLenum gltexcomparefunc = 0;
-};
-
-inline bool operator==(const QGles2SamplerData &a, const QGles2SamplerData &b)
-{
-    return a.glminfilter == b.glminfilter
-            && a.glmagfilter == b.glmagfilter
-            && a.glwraps == b.glwraps
-            && a.glwrapt == b.glwrapt
-            && a.glwrapr == b.glwrapr
-            && a.gltexcomparefunc == b.gltexcomparefunc;
-}
-
-inline bool operator!=(const QGles2SamplerData &a, const QGles2SamplerData &b)
-{
-    return !(a == b);
-}
-
-struct QGles2Texture : public QRhiTexture
-{
-    QGles2Texture(QRhiImplementation *rhi, Format format, const QSize &pixelSize, int depth,
-                  int arraySize, int sampleCount, Flags flags);
-    ~QGles2Texture();
-    void destroy() override;
-    bool create() override;
-    bool createFrom(NativeTexture src) override;
-    NativeTexture nativeTexture() override;
-
-    bool prepareCreate(QSize *adjustedSize = nullptr);
-
-    GLuint texture = 0;
-    bool owns = true;
-    GLenum target;
-    GLenum glintformat;
-    GLenum glsizedintformat;
-    GLenum glformat;
-    GLenum gltype;
-    QGles2SamplerData samplerState;
-    bool specified = false;
-    bool zeroInitialized = false;
-    int mipLevelCount = 0;
-
-    enum Access {
-        AccessNone,
-        AccessSample,
-        AccessFramebuffer,
-        AccessStorageRead,
-        AccessStorageWrite,
-        AccessStorageReadWrite,
-        AccessUpdate,
-        AccessRead
-    };
-    struct UsageState {
-        Access access;
-    };
-    UsageState usageState;
-
-    uint generation = 0;
-    friend class QRhiGles2;
-};
-
-struct QGles2Sampler : public QRhiSampler
-{
-    QGles2Sampler(QRhiImplementation *rhi, Filter magFilter, Filter minFilter, Filter mipmapMode,
-                  AddressMode u, AddressMode v, AddressMode w);
-    ~QGles2Sampler();
-    void destroy() override;
-    bool create() override;
-
-    QGles2SamplerData d;
-    uint generation = 0;
-    friend class QRhiGles2;
-};
-
-struct QGles2RenderPassDescriptor : public QRhiRenderPassDescriptor
-{
-    QGles2RenderPassDescriptor(QRhiImplementation *rhi);
-    ~QGles2RenderPassDescriptor();
-    void destroy() override;
-    bool isCompatible(const QRhiRenderPassDescriptor *other) const override;
-    QRhiRenderPassDescriptor *newCompatibleRenderPassDescriptor() const override;
-    QVector<quint32> serializedFormat() const override;
-};
-
-struct QGles2RenderTargetData
-{
-    QGles2RenderTargetData(QRhiImplementation *) { }
-
-    bool isValid() const { return rp != nullptr; }
-
-    QGles2RenderPassDescriptor *rp = nullptr;
-    QSize pixelSize;
-    float dpr = 1;
-    int sampleCount = 1;
-    int colorAttCount = 0;
-    int dsAttCount = 0;
-    bool srgbUpdateAndBlend = false;
-    QRhiRenderTargetAttachmentTracker::ResIdList currentResIdList;
-    std::optional<QRhiSwapChain::StereoTargetBuffer> stereoTarget;
-};
-
-struct QGles2SwapChainRenderTarget : public QRhiSwapChainRenderTarget
-{
-    QGles2SwapChainRenderTarget(QRhiImplementation *rhi, QRhiSwapChain *swapchain);
-    ~QGles2SwapChainRenderTarget();
-    void destroy() override;
-
-    QSize pixelSize() const override;
-    float devicePixelRatio() const override;
-    int sampleCount() const override;
-
-    QGles2RenderTargetData d;
-};
-
-struct QGles2TextureRenderTarget : public QRhiTextureRenderTarget
-{
-    QGles2TextureRenderTarget(QRhiImplementation *rhi, const QRhiTextureRenderTargetDescription &desc, Flags flags);
-    ~QGles2TextureRenderTarget();
-    void destroy() override;
-
-    QSize pixelSize() const override;
-    float devicePixelRatio() const override;
-    int sampleCount() const override;
-
-    QRhiRenderPassDescriptor *newCompatibleRenderPassDescriptor() override;
-    bool create() override;
-
-    QGles2RenderTargetData d;
-    GLuint framebuffer = 0;
-    friend class QRhiGles2;
-};
-
-struct QGles2ShaderResourceBindings : public QRhiShaderResourceBindings
-{
-    QGles2ShaderResourceBindings(QRhiImplementation *rhi);
-    ~QGles2ShaderResourceBindings();
-    void destroy() override;
-    bool create() override;
-    void updateResources(UpdateFlags flags) override;
-
-    bool hasDynamicOffset = false;
-    uint generation = 0;
-    friend class QRhiGles2;
-};
-
-struct QGles2UniformDescription
-{
-    QShaderDescription::VariableType type;
-    int glslLocation;
-    int binding;
-    quint32 offset;
-    quint32 size;
-    int arrayDim;
-};
-
-Q_DECLARE_TYPEINFO(QGles2UniformDescription, Q_RELOCATABLE_TYPE);
-
-struct QGles2SamplerDescription
-{
-    int glslLocation;
-    int combinedBinding;
-    int tbinding;
-    int sbinding;
-};
-
-Q_DECLARE_TYPEINFO(QGles2SamplerDescription, Q_RELOCATABLE_TYPE);
-
-using QGles2UniformDescriptionVector = QVarLengthArray<QGles2UniformDescription, 8>;
-using QGles2SamplerDescriptionVector = QVarLengthArray<QGles2SamplerDescription, 4>;
-
-struct QGles2UniformState
-{
-    static constexpr int MAX_TRACKED_LOCATION = 1023;
-    int componentCount;
-    float v[4];
-};
-
-struct QGles2GraphicsPipeline : public QRhiGraphicsPipeline
-{
-    QGles2GraphicsPipeline(QRhiImplementation *rhi);
-    ~QGles2GraphicsPipeline();
-    void destroy() override;
-    bool create() override;
-
-    GLuint program = 0;
-    GLenum drawMode = GL_TRIANGLES;
-    QGles2UniformDescriptionVector uniforms;
-    QGles2SamplerDescriptionVector samplers;
-    QGles2UniformState uniformState[QGles2UniformState::MAX_TRACKED_LOCATION + 1];
-    QRhiShaderResourceBindings *currentSrb = nullptr;
-    uint currentSrbGeneration = 0;
-    uint generation = 0;
-    friend class QRhiGles2;
-};
-
-struct QGles2ComputePipeline : public QRhiComputePipeline
-{
-    QGles2ComputePipeline(QRhiImplementation *rhi);
-    ~QGles2ComputePipeline();
-    void destroy() override;
-    bool create() override;
-
-    GLuint program = 0;
-    QGles2UniformDescriptionVector uniforms;
-    QGles2SamplerDescriptionVector samplers;
-    QGles2UniformState uniformState[QGles2UniformState::MAX_TRACKED_LOCATION + 1];
-    QRhiShaderResourceBindings *currentSrb = nullptr;
-    uint currentSrbGeneration = 0;
-    uint generation = 0;
-    friend class QRhiGles2;
-};
-
-struct QGles2CommandBuffer : public QRhiCommandBuffer
-{
-    QGles2CommandBuffer(QRhiImplementation *rhi);
-    ~QGles2CommandBuffer();
-    void destroy() override;
-
-    // keep at a reasonably low value otherwise sizeof Command explodes
-    static const int MAX_DYNAMIC_OFFSET_COUNT = 8;
-
-    struct Command {
-        enum Cmd {
-            BeginFrame,
-            EndFrame,
-            ResetFrame,
-            Viewport,
-            Scissor,
-            BlendConstants,
-            StencilRef,
-            BindVertexBuffer,
-            BindIndexBuffer,
-            Draw,
-            DrawIndexed,
-            BindGraphicsPipeline,
-            BindShaderResources,
-            BindFramebuffer,
-            Clear,
-            BufferSubData,
-            GetBufferSubData,
-            CopyTex,
-            ReadPixels,
-            SubImage,
-            CompressedImage,
-            CompressedSubImage,
-            BlitFromRenderbuffer,
-            GenMip,
-            BindComputePipeline,
-            Dispatch,
-            BarriersForPass,
-            Barrier
-        };
-        Cmd cmd;
-
-        // QRhi*/QGles2* references should be kept at minimum (so no
-        // QRhiTexture/Buffer/etc. pointers).
-        union Args {
-            struct {
-                float x, y, w, h;
-                float d0, d1;
-            } viewport;
-            struct {
-                int x, y, w, h;
-            } scissor;
-            struct {
-                float r, g, b, a;
-            } blendConstants;
-            struct {
-                quint32 ref;
-                QRhiGraphicsPipeline *ps;
-            } stencilRef;
-            struct {
-                QRhiGraphicsPipeline *ps;
-                GLuint buffer;
-                quint32 offset;
-                int binding;
-            } bindVertexBuffer;
-            struct {
-                GLuint buffer;
-                quint32 offset;
-                GLenum type;
-            } bindIndexBuffer;
-            struct {
-                QRhiGraphicsPipeline *ps;
-                quint32 vertexCount;
-                quint32 firstVertex;
-                quint32 instanceCount;
-                quint32 baseInstance;
-            } draw;
-            struct {
-                QRhiGraphicsPipeline *ps;
-                quint32 indexCount;
-                quint32 firstIndex;
-                quint32 instanceCount;
-                quint32 baseInstance;
-                qint32 baseVertex;
-            } drawIndexed;
-            struct {
-                QRhiGraphicsPipeline *ps;
-            } bindGraphicsPipeline;
-            struct {
-                QRhiGraphicsPipeline *maybeGraphicsPs;
-                QRhiComputePipeline *maybeComputePs;
-                QRhiShaderResourceBindings *srb;
-                int dynamicOffsetCount;
-                uint dynamicOffsetPairs[MAX_DYNAMIC_OFFSET_COUNT * 2]; // binding, offset
-            } bindShaderResources;
-            struct {
-                GLbitfield mask;
-                float c[4];
-                float d;
-                quint32 s;
-            } clear;
-            struct {
-                GLuint fbo;
-                bool srgb;
-                int colorAttCount;
-                bool stereo;
-                QRhiSwapChain::StereoTargetBuffer stereoTarget;
-            } bindFramebuffer;
-            struct {
-                GLenum target;
-                GLuint buffer;
-                int offset;
-                int size;
-                const void *data; // must come from retainData()
-            } bufferSubData;
-            struct {
-                QRhiBufferReadbackResult *result;
-                GLenum target;
-                GLuint buffer;
-                int offset;
-                int size;
-            } getBufferSubData;
-            struct {
-                GLenum srcTarget;
-                GLenum srcFaceTarget;
-                GLuint srcTexture;
-                int srcLevel;
-                int srcX;
-                int srcY;
-                int srcZ;
-                GLenum dstTarget;
-                GLuint dstTexture;
-                GLenum dstFaceTarget;
-                int dstLevel;
-                int dstX;
-                int dstY;
-                int dstZ;
-                int w;
-                int h;
-            } copyTex;
-            struct {
-                QRhiReadbackResult *result;
-                GLuint texture;
-                int w;
-                int h;
-                QRhiTexture::Format format;
-                GLenum readTarget;
-                int level;
-                int slice3D;
-            } readPixels;
-            struct {
-                GLenum target;
-                GLuint texture;
-                GLenum faceTarget;
-                int level;
-                int dx;
-                int dy;
-                int dz;
-                int w;
-                int h;
-                GLenum glformat;
-                GLenum gltype;
-                int rowStartAlign;
-                int rowLength;
-                const void *data; // must come from retainImage()
-            } subImage;
-            struct {
-                GLenum target;
-                GLuint texture;
-                GLenum faceTarget;
-                int level;
-                GLenum glintformat;
-                int w;
-                int h;
-                int depth;
-                int size;
-                const void *data; // must come from retainData()
-            } compressedImage;
-            struct {
-                GLenum target;
-                GLuint texture;
-                GLenum faceTarget;
-                int level;
-                int dx;
-                int dy;
-                int dz;
-                int w;
-                int h;
-                GLenum glintformat;
-                int size;
-                const void *data; // must come from retainData()
-            } compressedSubImage;
-            struct {
-                GLuint renderbuffer;
-                int w;
-                int h;
-                GLenum target;
-                GLuint texture;
-                int dstLevel;
-                int dstLayer;
-            } blitFromRb;
-            struct {
-                GLenum target;
-                GLuint texture;
-            } genMip;
-            struct {
-                QRhiComputePipeline *ps;
-            } bindComputePipeline;
-            struct {
-                GLuint x;
-                GLuint y;
-                GLuint z;
-            } dispatch;
-            struct {
-                int trackerIndex;
-            } barriersForPass;
-            struct {
-                GLbitfield barriers;
-            } barrier;
-        } args;
-    };
-
-    enum PassType {
-        NoPass,
-        RenderPass,
-        ComputePass
-    };
-
-    QRhiBackendCommandList<Command> commands;
-    QVarLengthArray<QRhiPassResourceTracker, 8> passResTrackers;
-    int currentPassResTrackerIndex;
-
-    PassType recordingPass;
-    bool passNeedsResourceTracking;
-    QRhiRenderTarget *currentTarget;
-    QRhiGraphicsPipeline *currentGraphicsPipeline;
-    QRhiComputePipeline *currentComputePipeline;
-    uint currentPipelineGeneration;
-    QRhiShaderResourceBindings *currentGraphicsSrb;
-    QRhiShaderResourceBindings *currentComputeSrb;
-    uint currentSrbGeneration;
-
-    struct GraphicsPassState {
-        bool valid = false;
-        bool scissor;
-        bool cullFace;
-        GLenum cullMode;
-        GLenum frontFace;
-        bool blendEnabled;
-        struct ColorMask { bool r, g, b, a; } colorMask;
-        struct Blend {
-            GLenum srcColor;
-            GLenum dstColor;
-            GLenum srcAlpha;
-            GLenum dstAlpha;
-            GLenum opColor;
-            GLenum opAlpha;
-        } blend;
-        bool depthTest;
-        bool depthWrite;
-        GLenum depthFunc;
-        bool stencilTest;
-        GLuint stencilReadMask;
-        GLuint stencilWriteMask;
-        struct StencilFace {
-            GLenum func;
-            GLenum failOp;
-            GLenum zfailOp;
-            GLenum zpassOp;
-        } stencil[2]; // front, back
-        bool polyOffsetFill;
-        float polyOffsetFactor;
-        float polyOffsetUnits;
-        float lineWidth;
-        int cpCount;
-        GLenum polygonMode;
-        void reset() { valid = false; }
-        struct {
-            // not part of QRhiGraphicsPipeline but used by setGraphicsPipeline()
-            GLint stencilRef = 0;
-        } dynamic;
-    } graphicsPassState;
-
-    struct ComputePassState {
-        enum Access {
-            Read = 0x01,
-            Write = 0x02
-        };
-        QHash<QRhiResource *, QPair<int, bool> > writtenResources;
-        void reset() {
-            writtenResources.clear();
-        }
-    } computePassState;
-
-    struct TextureUnitState {
-        void *ps;
-        uint psGeneration;
-        uint texture;
-    } textureUnitState[16];
-
-    QVarLengthArray<QByteArray, 4> dataRetainPool;
-    QVarLengthArray<QRhiBufferData, 4> bufferDataRetainPool;
-    QVarLengthArray<QImage, 4> imageRetainPool;
-
-    // relies heavily on implicit sharing (no copies of the actual data will be made)
-    const void *retainData(const QByteArray &data) {
-        dataRetainPool.append(data);
-        return dataRetainPool.last().constData();
-    }
-    const uchar *retainBufferData(const QRhiBufferData &data) {
-        bufferDataRetainPool.append(data);
-        return reinterpret_cast<const uchar *>(bufferDataRetainPool.last().constData());
-    }
-    const void *retainImage(const QImage &image) {
-        imageRetainPool.append(image);
-        return imageRetainPool.last().constBits();
-    }
-    void resetCommands() {
-        commands.reset();
-        dataRetainPool.clear();
-        bufferDataRetainPool.clear();
-        imageRetainPool.clear();
-
-        passResTrackers.clear();
-        currentPassResTrackerIndex = -1;
-    }
-    void resetState() {
-        recordingPass = NoPass;
-        passNeedsResourceTracking = true;
-        currentTarget = nullptr;
-        resetCommands();
-        resetCachedState();
-    }
-    void resetCachedState() {
-        currentGraphicsPipeline = nullptr;
-        currentComputePipeline = nullptr;
-        currentPipelineGeneration = 0;
-        currentGraphicsSrb = nullptr;
-        currentComputeSrb = nullptr;
-        currentSrbGeneration = 0;
-        graphicsPassState.reset();
-        computePassState.reset();
-        memset(textureUnitState, 0, sizeof(textureUnitState));
-    }
-};
-
-inline bool operator==(const QGles2CommandBuffer::GraphicsPassState::StencilFace &a,
-                       const QGles2CommandBuffer::GraphicsPassState::StencilFace &b)
-{
-    return a.func == b.func
-            && a.failOp == b.failOp
-            && a.zfailOp == b.zfailOp
-            && a.zpassOp == b.zpassOp;
-}
-
-inline bool operator!=(const QGles2CommandBuffer::GraphicsPassState::StencilFace &a,
-                       const QGles2CommandBuffer::GraphicsPassState::StencilFace &b)
-{
-    return !(a == b);
-}
-
-inline bool operator==(const QGles2CommandBuffer::GraphicsPassState::ColorMask &a,
-                       const QGles2CommandBuffer::GraphicsPassState::ColorMask &b)
-{
-    return a.r == b.r && a.g == b.g && a.b == b.b && a.a == b.a;
-}
-
-inline bool operator!=(const QGles2CommandBuffer::GraphicsPassState::ColorMask &a,
-                       const QGles2CommandBuffer::GraphicsPassState::ColorMask &b)
-{
-    return !(a == b);
-}
-
-inline bool operator==(const QGles2CommandBuffer::GraphicsPassState::Blend &a,
-                       const QGles2CommandBuffer::GraphicsPassState::Blend &b)
-{
-    return a.srcColor == b.srcColor
-            && a.dstColor == b.dstColor
-            && a.srcAlpha == b.srcAlpha
-            && a.dstAlpha == b.dstAlpha
-            && a.opColor == b.opColor
-            && a.opAlpha == b.opAlpha;
-}
-
-inline bool operator!=(const QGles2CommandBuffer::GraphicsPassState::Blend &a,
-                       const QGles2CommandBuffer::GraphicsPassState::Blend &b)
-{
-    return !(a == b);
-}
-
-struct QGles2SwapChain : public QRhiSwapChain
-{
-    QGles2SwapChain(QRhiImplementation *rhi);
-    ~QGles2SwapChain();
-    void destroy() override;
-
-    QRhiCommandBuffer *currentFrameCommandBuffer() override;
-    QRhiRenderTarget *currentFrameRenderTarget() override;
-    QRhiRenderTarget *currentFrameRenderTarget(StereoTargetBuffer targetBuffer) override;
-
-    QSize surfacePixelSize() override;
-    bool isFormatSupported(Format f) override;
-
-    QRhiRenderPassDescriptor *newCompatibleRenderPassDescriptor() override;
-    bool createOrResize() override;
-
-    void initSwapChainRenderTarget(QGles2SwapChainRenderTarget *rt);
-
-    QSurface *surface = nullptr;
-    QSize pixelSize;
-    QGles2SwapChainRenderTarget rt;
-    QGles2SwapChainRenderTarget rtLeft;
-    QGles2SwapChainRenderTarget rtRight;
-    QGles2CommandBuffer cb;
-    int frameCount = 0;
-};
-
-class QRhiGles2 : public QRhiImplementation
-{
-public:
-    QRhiGles2(QRhiGles2InitParams *params, QRhiGles2NativeHandles *importDevice = nullptr);
-
-    bool create(QRhi::Flags flags) override;
-    void destroy() override;
-
-    QRhiGraphicsPipeline *createGraphicsPipeline() override;
-    QRhiComputePipeline *createComputePipeline() override;
-    QRhiShaderResourceBindings *createShaderResourceBindings() override;
-    QRhiBuffer *createBuffer(QRhiBuffer::Type type,
-                             QRhiBuffer::UsageFlags usage,
-                             quint32 size) override;
-    QRhiRenderBuffer *createRenderBuffer(QRhiRenderBuffer::Type type,
-                                         const QSize &pixelSize,
-                                         int sampleCount,
-                                         QRhiRenderBuffer::Flags flags,
-                                         QRhiTexture::Format backingFormatHint) override;
-    QRhiTexture *createTexture(QRhiTexture::Format format,
-                               const QSize &pixelSize,
-                               int depth,
-                               int arraySize,
-                               int sampleCount,
-                               QRhiTexture::Flags flags) override;
-    QRhiSampler *createSampler(QRhiSampler::Filter magFilter,
-                               QRhiSampler::Filter minFilter,
-                               QRhiSampler::Filter mipmapMode,
-                               QRhiSampler:: AddressMode u,
-                               QRhiSampler::AddressMode v,
-                               QRhiSampler::AddressMode w) override;
-
-    QRhiTextureRenderTarget *createTextureRenderTarget(const QRhiTextureRenderTargetDescription &desc,
-                                                       QRhiTextureRenderTarget::Flags flags) override;
-
-    QRhiSwapChain *createSwapChain() override;
-    QRhi::FrameOpResult beginFrame(QRhiSwapChain *swapChain, QRhi::BeginFrameFlags flags) override;
-    QRhi::FrameOpResult endFrame(QRhiSwapChain *swapChain, QRhi::EndFrameFlags flags) override;
-    QRhi::FrameOpResult beginOffscreenFrame(QRhiCommandBuffer **cb, QRhi::BeginFrameFlags flags) override;
-    QRhi::FrameOpResult endOffscreenFrame(QRhi::EndFrameFlags flags) override;
-    QRhi::FrameOpResult finish() override;
-
-    void resourceUpdate(QRhiCommandBuffer *cb, QRhiResourceUpdateBatch *resourceUpdates) override;
-
-    void beginPass(QRhiCommandBuffer *cb,
-                   QRhiRenderTarget *rt,
-                   const QColor &colorClearValue,
-                   const QRhiDepthStencilClearValue &depthStencilClearValue,
-                   QRhiResourceUpdateBatch *resourceUpdates,
-                   QRhiCommandBuffer::BeginPassFlags flags) override;
-    void endPass(QRhiCommandBuffer *cb, QRhiResourceUpdateBatch *resourceUpdates) override;
-
-    void setGraphicsPipeline(QRhiCommandBuffer *cb,
-                             QRhiGraphicsPipeline *ps) override;
-
-    void setShaderResources(QRhiCommandBuffer *cb,
-                            QRhiShaderResourceBindings *srb,
-                            int dynamicOffsetCount,
-                            const QRhiCommandBuffer::DynamicOffset *dynamicOffsets) override;
-
-    void setVertexInput(QRhiCommandBuffer *cb,
-                        int startBinding, int bindingCount, const QRhiCommandBuffer::VertexInput *bindings,
-                        QRhiBuffer *indexBuf, quint32 indexOffset,
-                        QRhiCommandBuffer::IndexFormat indexFormat) override;
-
-    void setViewport(QRhiCommandBuffer *cb, const QRhiViewport &viewport) override;
-    void setScissor(QRhiCommandBuffer *cb, const QRhiScissor &scissor) override;
-    void setBlendConstants(QRhiCommandBuffer *cb, const QColor &c) override;
-    void setStencilRef(QRhiCommandBuffer *cb, quint32 refValue) override;
-
-    void draw(QRhiCommandBuffer *cb, quint32 vertexCount,
-              quint32 instanceCount, quint32 firstVertex, quint32 firstInstance) override;
-
-    void drawIndexed(QRhiCommandBuffer *cb, quint32 indexCount,
-                     quint32 instanceCount, quint32 firstIndex,
-                     qint32 vertexOffset, quint32 firstInstance) override;
-
-    void debugMarkBegin(QRhiCommandBuffer *cb, const QByteArray &name) override;
-    void debugMarkEnd(QRhiCommandBuffer *cb) override;
-    void debugMarkMsg(QRhiCommandBuffer *cb, const QByteArray &msg) override;
-
-    void beginComputePass(QRhiCommandBuffer *cb,
-                          QRhiResourceUpdateBatch *resourceUpdates,
-                          QRhiCommandBuffer::BeginPassFlags flags) override;
-    void endComputePass(QRhiCommandBuffer *cb, QRhiResourceUpdateBatch *resourceUpdates) override;
-    void setComputePipeline(QRhiCommandBuffer *cb, QRhiComputePipeline *ps) override;
-    void dispatch(QRhiCommandBuffer *cb, int x, int y, int z) override;
-
-    const QRhiNativeHandles *nativeHandles(QRhiCommandBuffer *cb) override;
-    void beginExternal(QRhiCommandBuffer *cb) override;
-    void endExternal(QRhiCommandBuffer *cb) override;
-
-    QList<int> supportedSampleCounts() const override;
-    int ubufAlignment() const override;
-    bool isYUpInFramebuffer() const override;
-    bool isYUpInNDC() const override;
-    bool isClipDepthZeroToOne() const override;
-    QMatrix4x4 clipSpaceCorrMatrix() const override;
-    bool isTextureFormatSupported(QRhiTexture::Format format, QRhiTexture::Flags flags) const override;
-    bool isFeatureSupported(QRhi::Feature feature) const override;
-    int resourceLimit(QRhi::ResourceLimit limit) const override;
-    const QRhiNativeHandles *nativeHandles() override;
-    QRhiDriverInfo driverInfo() const override;
-    QRhiStats statistics() override;
-    bool makeThreadLocalNativeContextCurrent() override;
-    void releaseCachedResources() override;
-    bool isDeviceLost() const override;
-
-    QByteArray pipelineCacheData() override;
-    void setPipelineCacheData(const QByteArray &data) override;
-
-    bool ensureContext(QSurface *surface = nullptr) const;
-    QSurface *evaluateFallbackSurface() const;
-    void executeDeferredReleases();
-    void trackedBufferBarrier(QGles2CommandBuffer *cbD, QGles2Buffer *bufD, QGles2Buffer::Access access);
-    void trackedImageBarrier(QGles2CommandBuffer *cbD, QGles2Texture *texD, QGles2Texture::Access access);
-    void enqueueSubresUpload(QGles2Texture *texD, QGles2CommandBuffer *cbD,
-                             int layer, int level, const QRhiTextureSubresourceUploadDescription &subresDesc);
-    void enqueueResourceUpdates(QRhiCommandBuffer *cb, QRhiResourceUpdateBatch *resourceUpdates);
-    void trackedRegisterBuffer(QRhiPassResourceTracker *passResTracker,
-                               QGles2Buffer *bufD,
-                               QRhiPassResourceTracker::BufferAccess access,
-                               QRhiPassResourceTracker::BufferStage stage);
-    void trackedRegisterTexture(QRhiPassResourceTracker *passResTracker,
-                                QGles2Texture *texD,
-                                QRhiPassResourceTracker::TextureAccess access,
-                                QRhiPassResourceTracker::TextureStage stage);
-    void executeCommandBuffer(QRhiCommandBuffer *cb);
-    void executeBindGraphicsPipeline(QGles2CommandBuffer *cbD, QGles2GraphicsPipeline *psD);
-    void bindCombinedSampler(QGles2CommandBuffer *cbD, QGles2Texture *texD, QGles2Sampler *samplerD,
-                             void *ps, uint psGeneration, int glslLocation,
-                             int *texUnit, bool *activeTexUnitAltered);
-    void bindShaderResources(QGles2CommandBuffer *cbD,
-                             QRhiGraphicsPipeline *maybeGraphicsPs, QRhiComputePipeline *maybeComputePs,
-                             QRhiShaderResourceBindings *srb,
-                             const uint *dynOfsPairs, int dynOfsCount);
-    QGles2RenderTargetData *enqueueBindFramebuffer(QRhiRenderTarget *rt, QGles2CommandBuffer *cbD,
-                                                   bool *wantsColorClear = nullptr, bool *wantsDsClear = nullptr);
-    void enqueueBarriersForPass(QGles2CommandBuffer *cbD);
-    int effectiveSampleCount(int sampleCount) const;
-    QByteArray shaderSource(const QRhiShaderStage &shaderStage, QShaderVersion *shaderVersion);
-    bool compileShader(GLuint program, const QRhiShaderStage &shaderStage, QShaderVersion *shaderVersion);
-    bool linkProgram(GLuint program);
-    void registerUniformIfActive(const QShaderDescription::BlockVariable &var,
-                                 const QByteArray &namePrefix, int binding, int baseOffset,
-                                 GLuint program,
-                                 QDuplicateTracker<int, 256> *activeUniformLocations,
-                                 QGles2UniformDescriptionVector *dst);
-    void gatherUniforms(GLuint program, const QShaderDescription::UniformBlock &ub,
-                        QDuplicateTracker<int, 256> *activeUniformLocations, QGles2UniformDescriptionVector *dst);
-    void gatherSamplers(GLuint program, const QShaderDescription::InOutVariable &v,
-                        QGles2SamplerDescriptionVector *dst);
-    void gatherGeneratedSamplers(GLuint program,
-                                 const QShader::SeparateToCombinedImageSamplerMapping &mapping,
-                                 QGles2SamplerDescriptionVector *dst);
-    void sanityCheckVertexFragmentInterface(const QShaderDescription &vsDesc, const QShaderDescription &fsDesc);
-    bool isProgramBinaryDiskCacheEnabled() const;
-
-    enum ProgramCacheResult {
-        ProgramCacheHit,
-        ProgramCacheMiss,
-        ProgramCacheError
-    };
-    ProgramCacheResult tryLoadFromDiskOrPipelineCache(const QRhiShaderStage *stages,
-                                                      int stageCount,
-                                                      GLuint program,
-                                                      const QVector<QShaderDescription::InOutVariable> &inputVars,
-                                                      QByteArray *cacheKey);
-    void trySaveToDiskCache(GLuint program, const QByteArray &cacheKey);
-    void trySaveToPipelineCache(GLuint program, const QByteArray &cacheKey, bool force = false);
-
-    QRhi::Flags rhiFlags;
-    QOpenGLContext *ctx = nullptr;
-    bool importedContext = false;
-    QSurfaceFormat requestedFormat;
-    QSurface *fallbackSurface = nullptr;
-    QPointer<QWindow> maybeWindow = nullptr;
-    QOpenGLContext *maybeShareContext = nullptr;
-    mutable bool needsMakeCurrentDueToSwap = false;
-    QOpenGLExtensions *f = nullptr;
-    void (QOPENGLF_APIENTRYP glPolygonMode) (GLenum, GLenum) = nullptr;
-    void(QOPENGLF_APIENTRYP glTexImage1D)(GLenum, GLint, GLint, GLsizei, GLint, GLenum, GLenum,
-                                          const void *) = nullptr;
-    void(QOPENGLF_APIENTRYP glTexStorage1D)(GLenum, GLint, GLenum, GLsizei) = nullptr;
-    void(QOPENGLF_APIENTRYP glTexSubImage1D)(GLenum, GLint, GLint, GLsizei, GLenum, GLenum,
-                                             const GLvoid *) = nullptr;
-    void(QOPENGLF_APIENTRYP glCopyTexSubImage1D)(GLenum, GLint, GLint, GLint, GLint,
-                                                 GLsizei) = nullptr;
-    void(QOPENGLF_APIENTRYP glCompressedTexImage1D)(GLenum, GLint, GLenum, GLsizei, GLint, GLsizei,
-                                                    const GLvoid *) = nullptr;
-    void(QOPENGLF_APIENTRYP glCompressedTexSubImage1D)(GLenum, GLint, GLint, GLsizei, GLenum,
-                                                       GLsizei, const GLvoid *) = nullptr;
-    void(QOPENGLF_APIENTRYP glFramebufferTexture1D)(GLenum, GLenum, GLenum, GLuint,
-                                                    GLint) = nullptr;
-
-    uint vao = 0;
-    struct Caps {
-        Caps()
-            : ctxMajor(2),
-              ctxMinor(0),
-              maxTextureSize(2048),
-              maxDrawBuffers(4),
-              maxSamples(16),
-              maxTextureArraySize(0),
-              maxThreadGroupsPerDimension(0),
-              maxThreadsPerThreadGroup(0),
-              maxThreadGroupsX(0),
-              maxThreadGroupsY(0),
-              maxThreadGroupsZ(0),
-              maxUniformVectors(4096),
-              maxVertexInputs(8),
-              maxVertexOutputs(8),
-              msaaRenderBuffer(false),
-              multisampledTexture(false),
-              npotTextureFull(true),
-              gles(false),
-              fixedIndexPrimitiveRestart(false),
-              bgraExternalFormat(false),
-              bgraInternalFormat(false),
-              r8Format(false),
-              r16Format(false),
-              floatFormats(false),
-              rgb10Formats(false),
-              depthTexture(false),
-              packedDepthStencil(false),
-              needsDepthStencilCombinedAttach(false),
-              srgbCapableDefaultFramebuffer(false),
-              coreProfile(false),
-              uniformBuffers(false),
-              elementIndexUint(false),
-              depth24(false),
-              rgba8Format(false),
-              instancing(false),
-              baseVertex(false),
-              compute(false),
-              textureCompareMode(false),
-              properMapBuffer(false),
-              nonBaseLevelFramebufferTexture(false),
-              texelFetch(false),
-              intAttributes(true),
-              screenSpaceDerivatives(false),
-              programBinary(false),
-              texture3D(false),
-              tessellation(false),
-              geometryShader(false),
-              texture1D(false),
-              hasDrawBuffersFunc(false)
-        { }
-        int ctxMajor;
-        int ctxMinor;
-        int maxTextureSize;
-        int maxDrawBuffers;
-        int maxSamples;
-        int maxTextureArraySize;
-        int maxThreadGroupsPerDimension;
-        int maxThreadsPerThreadGroup;
-        int maxThreadGroupsX;
-        int maxThreadGroupsY;
-        int maxThreadGroupsZ;
-        int maxUniformVectors;
-        int maxVertexInputs;
-        int maxVertexOutputs;
-        // Multisample fb and blit are supported (GLES 3.0 or OpenGL 3.x). Not
-        // the same as multisample textures!
-        uint msaaRenderBuffer : 1;
-        uint multisampledTexture : 1;
-        uint npotTextureFull : 1;
-        uint gles : 1;
-        uint fixedIndexPrimitiveRestart : 1;
-        uint bgraExternalFormat : 1;
-        uint bgraInternalFormat : 1;
-        uint r8Format : 1;
-        uint r16Format : 1;
-        uint floatFormats : 1;
-        uint rgb10Formats : 1;
-        uint depthTexture : 1;
-        uint packedDepthStencil : 1;
-        uint needsDepthStencilCombinedAttach : 1;
-        uint srgbCapableDefaultFramebuffer : 1;
-        uint coreProfile : 1;
-        uint uniformBuffers : 1;
-        uint elementIndexUint : 1;
-        uint depth24 : 1;
-        uint rgba8Format : 1;
-        uint instancing : 1;
-        uint baseVertex : 1;
-        uint compute : 1;
-        uint textureCompareMode : 1;
-        uint properMapBuffer : 1;
-        uint nonBaseLevelFramebufferTexture : 1;
-        uint texelFetch : 1;
-        uint intAttributes : 1;
-        uint screenSpaceDerivatives : 1;
-        uint programBinary : 1;
-        uint texture3D : 1;
-        uint tessellation : 1;
-        uint geometryShader : 1;
-        uint texture1D : 1;
-        uint hasDrawBuffersFunc : 1;
-    } caps;
-    QGles2SwapChain *currentSwapChain = nullptr;
-    QSet<GLint> supportedCompressedFormats;
-    mutable QList<int> supportedSampleCountList;
-    QRhiGles2NativeHandles nativeHandlesStruct;
-    QRhiDriverInfo driverInfoStruct;
-    mutable bool contextLost = false;
-
-    struct DeferredReleaseEntry {
-        enum Type {
-            Buffer,
-            Pipeline,
-            Texture,
-            RenderBuffer,
-            TextureRenderTarget
-        };
-        Type type;
-        union {
-            struct {
-                GLuint buffer;
-            } buffer;
-            struct {
-                GLuint program;
-            } pipeline;
-            struct {
-                GLuint texture;
-            } texture;
-            struct {
-                GLuint renderbuffer;
-                GLuint renderbuffer2;
-            } renderbuffer;
-            struct {
-                GLuint framebuffer;
-            } textureRenderTarget;
-        };
-    };
-    QList<DeferredReleaseEntry> releaseQueue;
-
-    struct OffscreenFrame {
-        OffscreenFrame(QRhiImplementation *rhi) : cbWrapper(rhi) { }
-        bool active = false;
-        QGles2CommandBuffer cbWrapper;
-    } ofr;
-
-    QHash<QRhiShaderStage, uint> m_shaderCache;
-
-    struct PipelineCacheData {
-        quint32 format;
-        QByteArray data;
-    };
-    QHash<QByteArray, PipelineCacheData> m_pipelineCache;
-};
-
-Q_DECLARE_TYPEINFO(QRhiGles2::DeferredReleaseEntry, Q_RELOCATABLE_TYPE);
-
-QT_END_NAMESPACE
-
-#endif
diff --git a/src/gui/rhi/qrhimetal.mm b/src/gui/rhi/qrhimetal.mm
index df2d6050..a59a557b 100644
--- a/src/gui/rhi/qrhimetal.mm
+++ b/src/gui/rhi/qrhimetal.mm
@@ -1,8 +1,8 @@
-// Copyright (C) 2019 The Qt Company Ltd.
+// Copyright (C) 2023 The Qt Company Ltd.
 // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
 
-#include "qrhimetal_p_p.h"
-#include <QtGui/private/qshader_p_p.h>
+#include "qrhimetal_p.h"
+#include "qshader_p.h"
 #include <QGuiApplication>
 #include <QWindow>
 #include <QUrl>
@@ -51,9 +51,12 @@ QT_BEGIN_NAMESPACE
 /*!
     \class QRhiMetalInitParams
     \inmodule QtRhi
-    \internal
+    \since 6.6
     \brief Metal specific initialization parameters.
 
+    \note This is a RHI API with limited compatibility guarantees, see \l QRhi
+    for details.
+
     A Metal-based QRhi needs no special parameters for initialization.
 
     \badcode
@@ -86,14 +89,25 @@ QT_BEGIN_NAMESPACE
 /*!
     \class QRhiMetalNativeHandles
     \inmodule QtRhi
-    \internal
+    \since 6.6
     \brief Holds the Metal device used by the QRhi.
+
+    \note This is a RHI API with limited compatibility guarantees, see \l QRhi
+    for details.
  */
 
+/*!
+    \variable QRhiMetalNativeHandles::dev
+*/
+
+/*!
+    \variable QRhiMetalNativeHandles::cmdQueue
+*/
+
 /*!
     \class QRhiMetalCommandBufferNativeHandles
     \inmodule QtRhi
-    \internal
+    \since 6.6
     \brief Holds the MTLCommandBuffer and MTLRenderCommandEncoder objects that are backing a QRhiCommandBuffer.
 
     \note The command buffer object is only guaranteed to be valid while
@@ -105,8 +119,19 @@ QT_BEGIN_NAMESPACE
     \note The command encoder is only valid while recording a pass, that is,
     between \l{QRhiCommandBuffer::beginPass()} -
     \l{QRhiCommandBuffer::endPass()}.
+
+    \note This is a RHI API with limited compatibility guarantees, see \l QRhi
+    for details.
  */
 
+/*!
+    \variable QRhiMetalCommandBufferNativeHandles::commandBuffer
+*/
+
+/*!
+    \variable QRhiMetalCommandBufferNativeHandles::encoder
+*/
+
 struct QMetalShader
 {
     id<MTLLibrary> lib = nil;
@@ -194,6 +219,7 @@ struct QRhiMetalData
     struct OffscreenFrame {
         OffscreenFrame(QRhiImplementation *rhi) : cbWrapper(rhi) { }
         bool active = false;
+        double lastGpuTime = 0;
         QMetalCommandBuffer cbWrapper;
     } ofr;
 
@@ -208,6 +234,17 @@ struct QRhiMetalData
     };
     QVarLengthArray<TextureReadback, 2> activeTextureReadbacks;
 
+    struct BufferReadback
+    {
+        int activeFrameSlot = -1;
+        QRhiReadbackResult *result;
+        quint32 offset;
+        quint32 readSize;
+        id<MTLBuffer> buf;
+    };
+
+    QVarLengthArray<BufferReadback, 2> activeBufferReadbacks;
+
     MTLCaptureManager *captureMgr;
     id<MTLCaptureScope> captureScope = nil;
 
@@ -285,6 +322,7 @@ struct QMetalShaderResourceBindingsData {
 struct QMetalCommandBufferData
 {
     id<MTLCommandBuffer> cb;
+    double lastGpuTime = 0;
     id<MTLRenderCommandEncoder> currentRenderPassEncoder;
     id<MTLComputeCommandEncoder> currentComputePassEncoder;
     id<MTLComputeCommandEncoder> tessellationComputeEncoder;
@@ -382,6 +420,9 @@ struct QMetalGraphicsPipelineData
     } tess;
     void setupVertexInputDescriptor(MTLVertexDescriptor *desc);
     void setupStageInputDescriptor(MTLStageInputOutputDescriptor *desc);
+
+    // SPIRV-Cross buffer size buffers
+    QMetalBuffer *bufferSizeBuffer = nullptr;
 };
 
 struct QMetalComputePipelineData
@@ -389,6 +430,9 @@ struct QMetalComputePipelineData
     id<MTLComputePipelineState> ps = nil;
     QMetalShader cs;
     MTLSize localSize;
+
+    // SPIRV-Cross buffer size buffers
+    QMetalBuffer *bufferSizeBuffer = nullptr;
 };
 
 struct QMetalSwapChainData
@@ -396,10 +440,16 @@ struct QMetalSwapChainData
     CAMetalLayer *layer = nullptr;
     id<CAMetalDrawable> curDrawable = nil;
     dispatch_semaphore_t sem[QMTL_FRAMES_IN_FLIGHT];
+    double lastGpuTime[QMTL_FRAMES_IN_FLIGHT];
     MTLRenderPassDescriptor *rp = nullptr;
     id<MTLTexture> msaaTex[QMTL_FRAMES_IN_FLIGHT];
     QRhiTexture::Format rhiColorFormat;
     MTLPixelFormat colorFormat;
+#ifdef Q_OS_MACOS
+    bool liveResizeObserverSet = false;
+    QMacNotificationObserver liveResizeStartObserver;
+    QMacNotificationObserver liveResizeEndObserver;
+#endif
 };
 
 QRhiMetal::QRhiMetal(QRhiMetalInitParams *params, QRhiMetalNativeHandles *importDevice)
@@ -708,7 +758,7 @@ bool QRhiMetal::isFeatureSupported(QRhi::Feature feature) const
     case QRhi::DebugMarkers:
         return true;
     case QRhi::Timestamps:
-        return false;
+        return true;
     case QRhi::Instancing:
         return true;
     case QRhi::CustomInstanceStepRate:
@@ -780,6 +830,12 @@ bool QRhiMetal::isFeatureSupported(QRhi::Feature feature) const
         return true;
     case QRhi::OneDimensionalTextureMipmaps:
         return false;
+    case QRhi::HalfAttributes:
+        return true;
+    case QRhi::RenderToOneDimensionalTexture:
+        return false;
+    case QRhi::ThreeDimensionalTextureMipmaps:
+        return true;
     default:
         Q_UNREACHABLE();
         return false;
@@ -1195,7 +1251,7 @@ void QRhiMetal::enqueueShaderResourceBindings(QMetalShaderResourceBindings *srbD
     QMetalShaderResourceBindingsData bindingData;
 
     for (const QRhiShaderResourceBinding &binding : std::as_const(srbD->sortedBindings)) {
-        const QRhiShaderResourceBinding::Data *b = binding.data();
+        const QRhiShaderResourceBinding::Data *b = shaderResourceBindingData(binding);
         switch (b->type) {
         case QRhiShaderResourceBinding::UniformBuffer:
         {
@@ -1450,9 +1506,15 @@ void QRhiMetal::setShaderResources(QRhiCommandBuffer *cb, QRhiShaderResourceBind
     bool hasDynamicOffsetInSrb = false;
     bool resNeedsRebind = false;
 
+    // SPIRV-Cross buffer size buffers
+    // Need to determine storage buffer sizes here as this is the last opportunity for storage
+    // buffer bindings (offset, size) to be specified before draw / dispatch call
+    const bool needsBufferSizeBuffer = (compPsD && compPsD->d->bufferSizeBuffer) || (gfxPsD && gfxPsD->d->bufferSizeBuffer);
+    QMap<QRhiShaderResourceBinding::StageFlag, QMap<int, quint32>> storageBufferSizes;
+
     // do buffer writes, figure out if we need to rebind, and mark as in-use
     for (int i = 0, ie = srbD->sortedBindings.count(); i != ie; ++i) {
-        const QRhiShaderResourceBinding::Data *b = srbD->sortedBindings.at(i).data();
+        const QRhiShaderResourceBinding::Data *b = shaderResourceBindingData(srbD->sortedBindings.at(i));
         QMetalShaderResourceBindings::BoundResourceData &bd(srbD->boundResourceData[i]);
         switch (b->type) {
         case QRhiShaderResourceBinding::UniformBuffer:
@@ -1526,6 +1588,17 @@ void QRhiMetal::setShaderResources(QRhiCommandBuffer *cb, QRhiShaderResourceBind
         {
             QMetalBuffer *bufD = QRHI_RES(QMetalBuffer, b->u.sbuf.buf);
             Q_ASSERT(bufD->m_usage.testFlag(QRhiBuffer::StorageBuffer));
+
+            if (needsBufferSizeBuffer) {
+                for (int i = 0; i < 6; ++i) {
+                    const QRhiShaderResourceBinding::StageFlag stage =
+                            QRhiShaderResourceBinding::StageFlag(1 << i);
+                    if (b->stage.testFlag(stage)) {
+                        storageBufferSizes[stage][b->binding] = b->u.sbuf.maybeSize ? b->u.sbuf.maybeSize : bufD->size();
+                    }
+                }
+            }
+
             executeBufferHostWritesForCurrentFrame(bufD);
             if (bufD->generation != bd.sbuf.generation || bufD->m_id != bd.sbuf.id) {
                 resNeedsRebind = true;
@@ -1541,6 +1614,111 @@ void QRhiMetal::setShaderResources(QRhiCommandBuffer *cb, QRhiShaderResourceBind
         }
     }
 
+    if (needsBufferSizeBuffer) {
+        QMetalBuffer *bufD = nullptr;
+        QVarLengthArray<QPair<QMetalShader *, QRhiShaderResourceBinding::StageFlag>, 4> shaders;
+
+        if (compPsD) {
+            bufD = compPsD->d->bufferSizeBuffer;
+            Q_ASSERT(compPsD->d->cs.nativeShaderInfo.extraBufferBindings.contains(QShaderPrivate::MslBufferSizeBufferBinding));
+            shaders.append(qMakePair(&compPsD->d->cs, QRhiShaderResourceBinding::StageFlag::ComputeStage));
+        } else {
+            bufD = gfxPsD->d->bufferSizeBuffer;
+            if (gfxPsD->d->tess.enabled) {
+
+                // Assumptions
+                // * We only use one of the compute vertex shader variants in a pipeline at any one time
+                // * The vertex shader variants all have the same storage block bindings
+                // * The vertex shader variants all have the same native resource binding map
+                // * The vertex shader variants all have the same MslBufferSizeBufferBinding requirement
+                // * The vertex shader variants all have the same MslBufferSizeBufferBinding binding
+                // => We only need to use one vertex shader variant to generate the identical shader
+                // resource bindings
+                Q_ASSERT(gfxPsD->d->tess.compVs[0].desc.storageBlocks() == gfxPsD->d->tess.compVs[1].desc.storageBlocks());
+                Q_ASSERT(gfxPsD->d->tess.compVs[0].desc.storageBlocks() == gfxPsD->d->tess.compVs[2].desc.storageBlocks());
+                Q_ASSERT(gfxPsD->d->tess.compVs[0].nativeResourceBindingMap == gfxPsD->d->tess.compVs[1].nativeResourceBindingMap);
+                Q_ASSERT(gfxPsD->d->tess.compVs[0].nativeResourceBindingMap == gfxPsD->d->tess.compVs[2].nativeResourceBindingMap);
+                Q_ASSERT(gfxPsD->d->tess.compVs[0].nativeShaderInfo.extraBufferBindings.contains(QShaderPrivate::MslBufferSizeBufferBinding)
+                         == gfxPsD->d->tess.compVs[1].nativeShaderInfo.extraBufferBindings.contains(QShaderPrivate::MslBufferSizeBufferBinding));
+                Q_ASSERT(gfxPsD->d->tess.compVs[0].nativeShaderInfo.extraBufferBindings.contains(QShaderPrivate::MslBufferSizeBufferBinding)
+                         == gfxPsD->d->tess.compVs[2].nativeShaderInfo.extraBufferBindings.contains(QShaderPrivate::MslBufferSizeBufferBinding));
+                Q_ASSERT(gfxPsD->d->tess.compVs[0].nativeShaderInfo.extraBufferBindings[QShaderPrivate::MslBufferSizeBufferBinding]
+                         == gfxPsD->d->tess.compVs[1].nativeShaderInfo.extraBufferBindings[QShaderPrivate::MslBufferSizeBufferBinding]);
+                Q_ASSERT(gfxPsD->d->tess.compVs[0].nativeShaderInfo.extraBufferBindings[QShaderPrivate::MslBufferSizeBufferBinding]
+                         == gfxPsD->d->tess.compVs[2].nativeShaderInfo.extraBufferBindings[QShaderPrivate::MslBufferSizeBufferBinding]);
+
+                if (gfxPsD->d->tess.compVs[0].nativeShaderInfo.extraBufferBindings.contains(QShaderPrivate::MslBufferSizeBufferBinding))
+                    shaders.append(qMakePair(&gfxPsD->d->tess.compVs[0], QRhiShaderResourceBinding::StageFlag::VertexStage));
+
+                if (gfxPsD->d->tess.compTesc.nativeShaderInfo.extraBufferBindings.contains(QShaderPrivate::MslBufferSizeBufferBinding))
+                    shaders.append(qMakePair(&gfxPsD->d->tess.compTesc, QRhiShaderResourceBinding::StageFlag::TessellationControlStage));
+
+                if (gfxPsD->d->tess.vertTese.nativeShaderInfo.extraBufferBindings.contains(QShaderPrivate::MslBufferSizeBufferBinding))
+                    shaders.append(qMakePair(&gfxPsD->d->tess.vertTese, QRhiShaderResourceBinding::StageFlag::TessellationEvaluationStage));
+
+            } else {
+                if (gfxPsD->d->vs.nativeShaderInfo.extraBufferBindings.contains(QShaderPrivate::MslBufferSizeBufferBinding))
+                    shaders.append(qMakePair(&gfxPsD->d->vs, QRhiShaderResourceBinding::StageFlag::VertexStage));
+            }
+            if (gfxPsD->d->fs.nativeShaderInfo.extraBufferBindings.contains(QShaderPrivate::MslBufferSizeBufferBinding))
+                shaders.append(qMakePair(&gfxPsD->d->fs, QRhiShaderResourceBinding::StageFlag::FragmentStage));
+        }
+
+        quint32 offset = 0;
+        for (const QPair<QMetalShader *, QRhiShaderResourceBinding::StageFlag> &shader : shaders) {
+
+            const int binding = shader.first->nativeShaderInfo.extraBufferBindings[QShaderPrivate::MslBufferSizeBufferBinding];
+
+            // if we don't have a srb entry for the buffer size buffer
+            if (!(storageBufferSizes.contains(shader.second) && storageBufferSizes[shader.second].contains(binding))) {
+
+                int maxNativeBinding = 0;
+                for (const QShaderDescription::StorageBlock &block : shader.first->desc.storageBlocks())
+                    maxNativeBinding = qMax(maxNativeBinding, shader.first->nativeResourceBindingMap[block.binding].first);
+
+                const int size = (maxNativeBinding + 1) * sizeof(int);
+
+                Q_ASSERT(offset + size <= bufD->size());
+                srbD->sortedBindings.append(QRhiShaderResourceBinding::bufferLoad(binding, shader.second, bufD, offset, size));
+
+                QMetalShaderResourceBindings::BoundResourceData bd;
+                bd.sbuf.id = bufD->m_id;
+                bd.sbuf.generation = bufD->generation;
+                srbD->boundResourceData.append(bd);
+            }
+
+            // create the buffer size buffer data
+            QVarLengthArray<int, 8> bufferSizeBufferData;
+            Q_ASSERT(storageBufferSizes.contains(shader.second));
+            const QMap<int, quint32> &sizes(storageBufferSizes[shader.second]);
+            for (const QShaderDescription::StorageBlock &block : shader.first->desc.storageBlocks()) {
+                const int index = shader.first->nativeResourceBindingMap[block.binding].first;
+
+                // if the native binding is -1, the buffer is present but not accessed in the shader
+                if (index < 0)
+                    continue;
+
+                if (bufferSizeBufferData.size() <= index)
+                    bufferSizeBufferData.resize(index + 1);
+
+                Q_ASSERT(sizes.contains(block.binding));
+                bufferSizeBufferData[index] = sizes[block.binding];
+            }
+
+            QRhiBufferData data;
+            const quint32 size = bufferSizeBufferData.size() * sizeof(int);
+            data.assign(reinterpret_cast<const char *>(bufferSizeBufferData.constData()), size);
+            Q_ASSERT(offset + size <= bufD->size());
+            bufD->d->pendingUpdates[bufD->d->slotted ? currentFrameSlot : 0].append({ offset, data });
+
+            // buffer offsets must be 32byte aligned
+            offset += ((size + 31) / 32) * 32;
+        }
+
+        executeBufferHostWritesForCurrentFrame(bufD);
+        bufD->lastActiveFrameSlot = currentFrameSlot;
+    }
+
     // make sure the resources for the correct slot get bound
     const int resSlot = hasSlottedResourceInSrb ? currentFrameSlot : 0;
     if (hasSlottedResourceInSrb && cbD->currentResSlot != resSlot)
@@ -2090,27 +2268,35 @@ void QRhiMetal::endExternal(QRhiCommandBuffer *cb)
     cbD->resetPerPassCachedState();
 }
 
+double QRhiMetal::lastCompletedGpuTime(QRhiCommandBuffer *cb)
+{
+    QMetalCommandBuffer *cbD = QRHI_RES(QMetalCommandBuffer, cb);
+    return cbD->d->lastGpuTime;
+}
+
 QRhi::FrameOpResult QRhiMetal::beginFrame(QRhiSwapChain *swapChain, QRhi::BeginFrameFlags flags)
 {
     Q_UNUSED(flags);
 
     QMetalSwapChain *swapChainD = QRHI_RES(QMetalSwapChain, swapChain);
-
-    // This is a bit messed up since for this swapchain we want to wait for the
-    // commands+present to complete, while for others just for the commands
-    // (for this same frame slot) but not sure how to do that in a sane way so
-    // wait for full cb completion for now.
-    for (QMetalSwapChain *sc : std::as_const(swapchains)) {
-        dispatch_semaphore_t sem = sc->d->sem[swapChainD->currentFrameSlot];
-        dispatch_semaphore_wait(sem, DISPATCH_TIME_FOREVER);
-        if (sc != swapChainD)
-            dispatch_semaphore_signal(sem);
-    }
-
     currentSwapChain = swapChainD;
     currentFrameSlot = swapChainD->currentFrameSlot;
-    if (swapChainD->ds)
-        swapChainD->ds->lastActiveFrameSlot = currentFrameSlot;
+
+    // If we are too far ahead, block. This is also what ensures that any
+    // resource used in the previous frame for this slot is now not in use
+    // anymore by the GPU.
+    dispatch_semaphore_wait(swapChainD->d->sem[currentFrameSlot], DISPATCH_TIME_FOREVER);
+
+    // Do this also for any other swapchain's commands with the same frame slot
+    // While this reduces concurrency, it keeps resource usage safe: swapchain
+    // A starting its frame 0, followed by swapchain B starting its own frame 0
+    // will make B wait for A's frame 0 commands, so if a resource is written
+    // in B's frame or when B checks for pending resource releases, that won't
+    // mess up A's in-flight commands (as they are not in flight anymore).
+    for (QMetalSwapChain *sc : std::as_const(swapchains)) {
+        if (sc != swapChainD)
+            sc->waitUntilCompleted(currentFrameSlot); // wait+signal
+    }
 
     [d->captureScope beginScope];
 
@@ -2132,8 +2318,12 @@ QRhi::FrameOpResult QRhiMetal::beginFrame(QRhiSwapChain *swapChain, QRhi::BeginF
     swapChainD->rtWrapper.d->fb.hasStencil = swapChainD->ds ? true : false;
     swapChainD->rtWrapper.d->fb.depthNeedsStore = false;
 
+    if (swapChainD->ds)
+        swapChainD->ds->lastActiveFrameSlot = currentFrameSlot;
+
     executeDeferredReleases();
-    swapChainD->cbWrapper.resetState();
+    swapChainD->cbWrapper.resetState(swapChainD->d->lastGpuTime[currentFrameSlot]);
+    swapChainD->d->lastGpuTime[currentFrameSlot] = 0;
     finishActiveReadbacks();
 
     return QRhi::FrameOpSuccess;
@@ -2144,26 +2334,30 @@ QRhi::FrameOpResult QRhiMetal::endFrame(QRhiSwapChain *swapChain, QRhi::EndFrame
     QMetalSwapChain *swapChainD = QRHI_RES(QMetalSwapChain, swapChain);
     Q_ASSERT(currentSwapChain == swapChainD);
 
+    __block int thisFrameSlot = currentFrameSlot;
+    [swapChainD->cbWrapper.d->cb addCompletedHandler: ^(id<MTLCommandBuffer> cb) {
+        swapChainD->d->lastGpuTime[thisFrameSlot] += cb.GPUEndTime - cb.GPUStartTime;
+        dispatch_semaphore_signal(swapChainD->d->sem[thisFrameSlot]);
+    }];
+
     const bool needsPresent = !flags.testFlag(QRhi::SkipPresent);
-    if (needsPresent) {
-        // beginFrame-endFrame without a render pass inbetween means there is no
-        // drawable, handle this gracefully because presentDrawable does not like
-        // null arguments.
-        if (id<CAMetalDrawable> drawable = swapChainD->d->curDrawable) {
-            // QTBUG-103415: while the docs suggest the following two approaches are
-            // equivalent, there is a difference in case a frame is recorded earlier than
-            // (i.e. not in response to) the next CVDisplayLink callback. Therefore, stick
-            // with presentDrawable, which gives results identical to OpenGL, and all other
-            // platforms, i.e. throttles to vsync as expected, meaning constant 15-17 ms with
-            // a 60 Hz screen, no jumps with smaller intervals, regardless of when the frame
-            // is submitted by the app)
-#if 1
+    const bool presentsWithTransaction = swapChainD->d->layer.presentsWithTransaction;
+    if (!presentsWithTransaction && needsPresent) {
+        // beginFrame-endFrame without a render pass inbetween means there is no drawable.
+        if (id<CAMetalDrawable> drawable = swapChainD->d->curDrawable)
             [swapChainD->cbWrapper.d->cb presentDrawable: drawable];
-#else
-            [swapChainD->cbWrapper.d->cb addScheduledHandler:^(id<MTLCommandBuffer>) {
-                [drawable present];
-            }];
-#endif
+    }
+
+    [swapChainD->cbWrapper.d->cb commit];
+
+    if (presentsWithTransaction && needsPresent) {
+        // beginFrame-endFrame without a render pass inbetween means there is no drawable.
+        if (id<CAMetalDrawable> drawable = swapChainD->d->curDrawable) {
+            // The layer has presentsWithTransaction set to true to avoid flicker on resizing,
+            // so here it is important to follow what the Metal docs say when it comes to the
+            // issuing the present.
+            [swapChainD->cbWrapper.d->cb waitUntilScheduled];
+            [drawable present];
         }
     }
 
@@ -2171,13 +2365,6 @@ QRhi::FrameOpResult QRhiMetal::endFrame(QRhiSwapChain *swapChain, QRhi::EndFrame
     [swapChainD->d->curDrawable release];
     swapChainD->d->curDrawable = nil;
 
-    __block int thisFrameSlot = currentFrameSlot;
-    [swapChainD->cbWrapper.d->cb addCompletedHandler: ^(id<MTLCommandBuffer>) {
-        dispatch_semaphore_signal(swapChainD->d->sem[thisFrameSlot]);
-    }];
-
-    [swapChainD->cbWrapper.d->cb commit];
-
     [d->captureScope endScope];
 
     if (needsPresent)
@@ -2193,21 +2380,17 @@ QRhi::FrameOpResult QRhiMetal::beginOffscreenFrame(QRhiCommandBuffer **cb, QRhi:
     Q_UNUSED(flags);
 
     currentFrameSlot = (currentFrameSlot + 1) % QMTL_FRAMES_IN_FLIGHT;
-    for (QMetalSwapChain *sc : std::as_const(swapchains)) {
-        // wait+signal is the general pattern to ensure the commands for a
-        // given frame slot have completed (if sem is 1, we go 0 then 1; if
-        // sem is 0 we go -1, block, completion increments to 0, then us to 1)
-        dispatch_semaphore_t sem = sc->d->sem[currentFrameSlot];
-        dispatch_semaphore_wait(sem, DISPATCH_TIME_FOREVER);
-        dispatch_semaphore_signal(sem);
-    }
+
+    for (QMetalSwapChain *sc : std::as_const(swapchains))
+        sc->waitUntilCompleted(currentFrameSlot);
 
     d->ofr.active = true;
     *cb = &d->ofr.cbWrapper;
     d->ofr.cbWrapper.d->cb = [d->cmdQueue commandBufferWithUnretainedReferences];
 
     executeDeferredReleases();
-    d->ofr.cbWrapper.resetState();
+    d->ofr.cbWrapper.resetState(d->ofr.lastGpuTime);
+    d->ofr.lastGpuTime = 0;
     finishActiveReadbacks();
 
     return QRhi::FrameOpSuccess;
@@ -2219,10 +2402,13 @@ QRhi::FrameOpResult QRhiMetal::endOffscreenFrame(QRhi::EndFrameFlags flags)
     Q_ASSERT(d->ofr.active);
     d->ofr.active = false;
 
-    [d->ofr.cbWrapper.d->cb commit];
+    id<MTLCommandBuffer> cb = d->ofr.cbWrapper.d->cb;
+    [cb commit];
 
     // offscreen frames wait for completion, unlike swapchain ones
-    [d->ofr.cbWrapper.d->cb waitUntilCompleted];
+    [cb waitUntilCompleted];
+
+    d->ofr.lastGpuTime += cb.GPUEndTime - cb.GPUStartTime;
 
     finishActiveReadbacks(true);
 
@@ -2253,9 +2439,7 @@ QRhi::FrameOpResult QRhiMetal::finish()
                 // beginFrame decremented sem already and going to be signaled by endFrame
                 continue;
             }
-            dispatch_semaphore_t sem = sc->d->sem[i];
-            dispatch_semaphore_wait(sem, DISPATCH_TIME_FOREVER);
-            dispatch_semaphore_signal(sem);
+            sc->waitUntilCompleted(i);
         }
     }
 
@@ -2265,10 +2449,13 @@ QRhi::FrameOpResult QRhiMetal::finish()
     }
 
     if (inFrame) {
-        if (d->ofr.active)
+        if (d->ofr.active) {
+            d->ofr.lastGpuTime += cb.GPUEndTime - cb.GPUStartTime;
             d->ofr.cbWrapper.d->cb = [d->cmdQueue commandBufferWithUnretainedReferences];
-        else
+        } else {
+            swapChainD->d->lastGpuTime[currentFrameSlot] += cb.GPUEndTime - cb.GPUStartTime;
             swapChainD->cbWrapper.d->cb = [d->cmdQueue commandBufferWithUnretainedReferences];
+        }
     }
 
     executeDeferredReleases(true);
@@ -2468,13 +2655,23 @@ void QRhiMetal::enqueueResourceUpdates(QRhiCommandBuffer *cb, QRhiResourceUpdate
             QMetalBuffer *bufD = QRHI_RES(QMetalBuffer, u.buf);
             executeBufferHostWritesForCurrentFrame(bufD);
             const int idx = bufD->d->slotted ? currentFrameSlot : 0;
-            char *p = reinterpret_cast<char *>([bufD->d->buf[idx] contents]);
-            if (p) {
-                u.result->data.resize(u.readSize);
-                memcpy(u.result->data.data(), p + u.offset, size_t(u.readSize));
+            if (bufD->m_type == QRhiBuffer::Dynamic) {
+                char *p = reinterpret_cast<char *>([bufD->d->buf[idx] contents]);
+                if (p) {
+                    u.result->data.resize(u.readSize);
+                    memcpy(u.result->data.data(), p + u.offset, size_t(u.readSize));
+                }
+                if (u.result->completed)
+                    u.result->completed();
+            } else {
+                QRhiMetalData::BufferReadback readback;
+                readback.activeFrameSlot = idx;
+                readback.buf = bufD->d->buf[idx];
+                readback.offset = u.offset;
+                readback.readSize = u.readSize;
+                readback.result = u.result;
+                d->activeBufferReadbacks.append(readback);
             }
-            if (u.result->completed)
-                u.result->completed();
         }
     }
 
@@ -2905,7 +3102,23 @@ void QRhiMetal::finishActiveReadbacks(bool forced)
             if (readback.result->completed)
                 completedCallbacks.append(readback.result->completed);
 
-            d->activeTextureReadbacks.removeLast();
+            d->activeTextureReadbacks.remove(i);
+        }
+    }
+
+    for (int i = d->activeBufferReadbacks.count() - 1; i >= 0; --i) {
+        const QRhiMetalData::BufferReadback &readback(d->activeBufferReadbacks[i]);
+        if (forced || currentFrameSlot == readback.activeFrameSlot
+                || readback.activeFrameSlot < 0) {
+            readback.result->data.resize(readback.readSize);
+            char *p = reinterpret_cast<char *>([readback.buf contents]);
+            Q_ASSERT(p);
+            memcpy(readback.result->data.data(), p + readback.offset, size_t(readback.readSize));
+
+            if (readback.result->completed)
+                completedCallbacks.append(readback.result->completed);
+
+            d->activeBufferReadbacks.remove(i);
         }
     }
 
@@ -3499,12 +3712,10 @@ bool QMetalTexture::prepareCreate(QSize *adjustedSize)
         qWarning("Texture cannot be both 1D and cube");
         return false;
     }
-    m_depth = qMax(1, m_depth);
     if (m_depth > 1 && !is3D) {
         qWarning("Texture cannot have a depth of %d when it is not 3D", m_depth);
         return false;
     }
-    m_arraySize = qMax(0, m_arraySize);
     if (m_arraySize > 0 && !isArray) {
         qWarning("Texture cannot have an array size of %d when it is not an array", m_arraySize);
         return false;
@@ -3540,11 +3751,11 @@ bool QMetalTexture::create()
         desc.textureType = isArray ? MTLTextureType1DArray : MTLTextureType1D;
     } else if (isArray) {
 #ifdef Q_OS_IOS
-        if (samples > 1) {
-            // would be available on iOS 14.0+ but cannot test for that with a 13 SDK
-            qWarning("Multisample 2D texture array is not supported on iOS");
+        if (@available(iOS 14, *)) {
+            desc.textureType = samples > 1 ? MTLTextureType2DMultisampleArray : MTLTextureType2DArray;
+        } else {
+            desc.textureType = MTLTextureType2DArray;
         }
-        desc.textureType = MTLTextureType2DArray;
 #else
         desc.textureType = samples > 1 ? MTLTextureType2DMultisampleArray : MTLTextureType2DArray;
 #endif
@@ -3554,12 +3765,12 @@ bool QMetalTexture::create()
     desc.pixelFormat = d->format;
     desc.width = NSUInteger(size.width());
     desc.height = NSUInteger(size.height());
-    desc.depth = is3D ? m_depth : 1;
+    desc.depth = is3D ? qMax(1, m_depth) : 1;
     desc.mipmapLevelCount = NSUInteger(mipLevelCount);
     if (samples > 1)
         desc.sampleCount = NSUInteger(samples);
     if (isArray)
-        desc.arrayLength = NSUInteger(m_arraySize);
+        desc.arrayLength = NSUInteger(qMax(0, m_arraySize));
     desc.resourceOptions = MTLResourceStorageModePrivate;
     desc.storageMode = MTLStorageModePrivate;
     desc.usage = MTLTextureUsageShaderRead;
@@ -3618,7 +3829,8 @@ id<MTLTexture> QMetalTextureData::viewForLevel(int level)
     const bool isCube = q->m_flags.testFlag(QRhiTexture::CubeMap);
     const bool isArray = q->m_flags.testFlag(QRhiTexture::TextureArray);
     id<MTLTexture> view = [tex newTextureViewWithPixelFormat: format textureType: type
-            levels: NSMakeRange(NSUInteger(level), 1) slices: NSMakeRange(0, isCube ? 6 : (isArray ? q->m_arraySize : 1))];
+            levels: NSMakeRange(NSUInteger(level), 1)
+            slices: NSMakeRange(0, isCube ? 6 : (isArray ? qMax(0, q->m_arraySize) : 1))];
 
     perLevelViews[level] = view;
     return view;
@@ -3881,7 +4093,7 @@ void QMetalTextureRenderTarget::destroy()
 
 QRhiRenderPassDescriptor *QMetalTextureRenderTarget::newCompatibleRenderPassDescriptor()
 {
-    const int colorAttachmentCount = m_desc.cendColorAttachments() - m_desc.cbeginColorAttachments();
+    const int colorAttachmentCount = int(m_desc.colorAttachmentCount());
     QMetalRenderPassDescriptor *rpD = new QMetalRenderPassDescriptor(m_rhi);
     rpD->colorAttachmentCount = colorAttachmentCount;
     rpD->hasDepthStencil = m_desc.depthStencilBuffer() || m_desc.depthTexture();
@@ -3908,8 +4120,7 @@ QRhiRenderPassDescriptor *QMetalTextureRenderTarget::newCompatibleRenderPassDesc
 bool QMetalTextureRenderTarget::create()
 {
     QRHI_RES_RHI(QRhiMetal);
-    const bool hasColorAttachments = m_desc.cbeginColorAttachments() != m_desc.cendColorAttachments();
-    Q_ASSERT(hasColorAttachments || m_desc.depthTexture());
+    Q_ASSERT(m_desc.colorAttachmentCount() > 0 || m_desc.depthTexture());
     Q_ASSERT(!m_desc.depthStencilBuffer() || !m_desc.depthTexture());
     const bool hasDepthStencil = m_desc.depthStencilBuffer() || m_desc.depthTexture();
 
@@ -4030,13 +4241,9 @@ bool QMetalShaderResourceBindings::create()
     rhiD->updateLayoutDesc(this);
 
     std::copy(m_bindings.cbegin(), m_bindings.cend(), std::back_inserter(sortedBindings));
-    std::sort(sortedBindings.begin(), sortedBindings.end(),
-              [](const QRhiShaderResourceBinding &a, const QRhiShaderResourceBinding &b)
-    {
-        return a.data()->binding < b.data()->binding;
-    });
+    std::sort(sortedBindings.begin(), sortedBindings.end(), QRhiImplementation::sortedBindingLessThan);
     if (!sortedBindings.isEmpty())
-        maxBinding = sortedBindings.last().data()->binding;
+        maxBinding = QRhiImplementation::shaderResourceBindingData(sortedBindings.last())->binding;
     else
         maxBinding = -1;
 
@@ -4054,13 +4261,8 @@ void QMetalShaderResourceBindings::updateResources(UpdateFlags flags)
 {
     sortedBindings.clear();
     std::copy(m_bindings.cbegin(), m_bindings.cend(), std::back_inserter(sortedBindings));
-    if (!flags.testFlag(BindingsAreSorted)) {
-        std::sort(sortedBindings.begin(), sortedBindings.end(),
-                  [](const QRhiShaderResourceBinding &a, const QRhiShaderResourceBinding &b)
-        {
-            return a.data()->binding < b.data()->binding;
-        });
-    }
+    if (!flags.testFlag(BindingsAreSorted))
+        std::sort(sortedBindings.begin(), sortedBindings.end(), QRhiImplementation::sortedBindingLessThan);
 
     for (BoundResourceData &bd : boundResourceData)
         memset(&bd, 0, sizeof(BoundResourceData));
@@ -4099,6 +4301,9 @@ void QMetalGraphicsPipeline::destroy()
     qDeleteAll(d->tess.hostVisibleWorkBuffers);
     d->tess.hostVisibleWorkBuffers.clear();
 
+    delete d->bufferSizeBuffer;
+    d->bufferSizeBuffer = nullptr;
+
     if (!d->ps && !d->ds
             && !d->tess.vertexComputeState[0] && !d->tess.vertexComputeState[1] && !d->tess.vertexComputeState[2]
             && !d->tess.tessControlComputeState)
@@ -4158,6 +4363,14 @@ static inline MTLVertexFormat toMetalAttributeFormat(QRhiVertexInputAttribute::F
         return MTLVertexFormatInt2;
     case QRhiVertexInputAttribute::SInt:
         return MTLVertexFormatInt;
+    case QRhiVertexInputAttribute::Half4:
+        return MTLVertexFormatHalf4;
+    case QRhiVertexInputAttribute::Half3:
+        return MTLVertexFormatHalf3;
+    case QRhiVertexInputAttribute::Half2:
+        return MTLVertexFormatHalf2;
+    case QRhiVertexInputAttribute::Half:
+        return MTLVertexFormatHalf;
     default:
         Q_UNREACHABLE();
         return MTLVertexFormatFloat4;
@@ -4369,15 +4582,39 @@ static inline MTLTessellationPartitionMode toMetalTessellationPartitionMode(QSha
     }
 }
 
+static inline MTLLanguageVersion toMetalLanguageVersion(const QShaderVersion &version)
+{
+    int v = version.version();
+    return MTLLanguageVersion(((v / 10) << 16) + (v % 10));
+}
+
 id<MTLLibrary> QRhiMetalData::createMetalLib(const QShader &shader, QShader::Variant shaderVariant,
                                              QString *error, QByteArray *entryPoint, QShaderKey *activeKey)
 {
-    QShaderKey key = { QShader::MetalLibShader, 20, shaderVariant };
-    QShaderCode mtllib = shader.shader(key);
-    if (mtllib.shader().isEmpty()) {
-        key.setSourceVersion(12);
-        mtllib = shader.shader(key);
+    QVarLengthArray<int, 8> versions;
+    if (@available(macOS 13, iOS 16, *))
+        versions << 30;
+    if (@available(macOS 12, iOS 15, *))
+        versions << 24;
+    if (@available(macOS 11, iOS 14, *))
+        versions << 23;
+    if (@available(macOS 10.15, iOS 13, *))
+        versions << 22;
+    if (@available(macOS 10.14, iOS 12, *))
+        versions << 21;
+    versions << 20 << 12;
+
+    const QList<QShaderKey> shaders = shader.availableShaders();
+
+    QShaderKey key;
+
+    for (const int &version : versions) {
+        key = { QShader::Source::MetalLibShader, version, shaderVariant };
+        if (shaders.contains(key))
+            break;
     }
+
+    QShaderCode mtllib = shader.shader(key);
     if (!mtllib.shader().isEmpty()) {
         dispatch_data_t data = dispatch_data_create(mtllib.shader().constData(),
                                                     size_t(mtllib.shader().size()),
@@ -4396,12 +4633,13 @@ id<MTLLibrary> QRhiMetalData::createMetalLib(const QShader &shader, QShader::Var
         }
     }
 
-    key = { QShader::MslShader, 20, shaderVariant };
-    QShaderCode mslSource = shader.shader(key);
-    if (mslSource.shader().isEmpty()) {
-        key.setSourceVersion(12);
-        mslSource = shader.shader(key);
+    for (const int &version : versions) {
+        key = { QShader::Source::MslShader, version, shaderVariant };
+        if (shaders.contains(key))
+            break;
     }
+
+    QShaderCode mslSource = shader.shader(key);
     if (mslSource.shader().isEmpty()) {
         qWarning() << "No MSL 2.0 or 1.2 code found in baked shader" << shader;
         return nil;
@@ -4409,7 +4647,7 @@ id<MTLLibrary> QRhiMetalData::createMetalLib(const QShader &shader, QShader::Var
 
     NSString *src = [NSString stringWithUTF8String: mslSource.shader().constData()];
     MTLCompileOptions *opts = [[MTLCompileOptions alloc] init];
-    opts.languageVersion = key.sourceVersion() == 20 ? MTLLanguageVersion2_0 : MTLLanguageVersion1_2;
+    opts.languageVersion = toMetalLanguageVersion(key.sourceVersion());
     NSError *err = nil;
     id<MTLLibrary> lib = [dev newLibraryWithSource: src options: opts error: &err];
     [opts release];
@@ -4660,6 +4898,8 @@ bool QMetalGraphicsPipeline::createVertexFragmentPipeline()
                 d->vs.lib = lib;
                 d->vs.func = func;
                 d->vs.nativeResourceBindingMap = shader.nativeResourceBindingMap(activeKey);
+                d->vs.desc = shader.description();
+                d->vs.nativeShaderInfo = shader.nativeShaderInfo(activeKey);
                 rhiD->d->shaderCache.insert(shaderStage, d->vs);
                 [d->vs.lib retain];
                 [d->vs.func retain];
@@ -4669,6 +4909,8 @@ bool QMetalGraphicsPipeline::createVertexFragmentPipeline()
                 d->fs.lib = lib;
                 d->fs.func = func;
                 d->fs.nativeResourceBindingMap = shader.nativeResourceBindingMap(activeKey);
+                d->fs.desc = shader.description();
+                d->fs.nativeShaderInfo = shader.nativeShaderInfo(activeKey);
                 rhiD->d->shaderCache.insert(shaderStage, d->fs);
                 [d->fs.lib retain];
                 [d->fs.func retain];
@@ -4808,19 +5050,176 @@ id<MTLComputePipelineState> QMetalGraphicsPipelineData::Tessellation::tescCompPi
     return ps;
 }
 
-static inline bool hasBuiltin(const QVector<QShaderDescription::BuiltinVariable> &builtinList, QShaderDescription::BuiltinType builtin)
+static inline bool indexTaken(quint32 index, quint64 indices)
 {
-    return std::find_if(builtinList.cbegin(), builtinList.cend(),
-                        [builtin](const QShaderDescription::BuiltinVariable &b) { return b.type == builtin; }) != builtinList.cend();
+    return (indices >> index) & 0x1;
+}
+
+static inline void takeIndex(quint32 index, quint64 &indices)
+{
+    indices |= 1 << index;
+}
+
+static inline int nextAttributeIndex(quint64 indices)
+{
+    // Maximum number of vertex attributes per vertex descriptor. There does
+    // not appear to be a way to query this from the implementation.
+    // https://developer.apple.com/metal/Metal-Feature-Set-Tables.pdf indicates
+    // that all GPU families have a value of 31.
+    static const int maxVertexAttributes = 31;
+
+    for (int index = 0; index < maxVertexAttributes; ++index) {
+        if (!indexTaken(index, indices))
+            return index;
+    }
+
+    Q_UNREACHABLE_RETURN(-1);
+}
+
+static inline int aligned(quint32 offset, quint32 alignment)
+{
+    return ((offset + alignment - 1) / alignment) * alignment;
+}
+
+template<typename T>
+static void addUnusedVertexAttribute(const T &variable, QRhiMetal *rhiD, quint32 &offset, quint32 &vertexAlignment)
+{
+
+    int elements = 1;
+    for (const int dim : variable.arrayDims)
+        elements *= dim;
+
+    if (variable.type == QShaderDescription::VariableType::Struct) {
+        for (int element = 0; element < elements; ++element) {
+            for (const auto &member : variable.structMembers) {
+                addUnusedVertexAttribute(member, rhiD, offset, vertexAlignment);
+            }
+        }
+    } else {
+        const QRhiVertexInputAttribute::Format format = rhiD->shaderDescVariableFormatToVertexInputFormat(variable.type);
+        const quint32 size = rhiD->byteSizePerVertexForVertexInputFormat(format);
+
+        // MSL specification 3.0 says alignment = size for non packed scalars and vectors
+        const quint32 alignment = size;
+        vertexAlignment = std::max(vertexAlignment, alignment);
+
+        for (int element = 0; element < elements; ++element) {
+            // adjust alignment
+            offset = aligned(offset, alignment);
+            offset += size;
+        }
+    }
+}
+
+template<typename T>
+static void addVertexAttribute(const T &variable, int binding, QRhiMetal *rhiD, int &index, quint32 &offset, MTLVertexAttributeDescriptorArray *attributes, quint64 &indices, quint32 &vertexAlignment)
+{
+
+    int elements = 1;
+    for (const int dim : variable.arrayDims)
+        elements *= dim;
+
+    if (variable.type == QShaderDescription::VariableType::Struct) {
+        for (int element = 0; element < elements; ++element) {
+            for (const auto &member : variable.structMembers) {
+                addVertexAttribute(member, binding, rhiD, index, offset, attributes, indices, vertexAlignment);
+            }
+        }
+    } else {
+        const QRhiVertexInputAttribute::Format format = rhiD->shaderDescVariableFormatToVertexInputFormat(variable.type);
+        const quint32 size = rhiD->byteSizePerVertexForVertexInputFormat(format);
+
+        // MSL specification 3.0 says alignment = size for non packed scalars and vectors
+        const quint32 alignment = size;
+        vertexAlignment = std::max(vertexAlignment, alignment);
+
+        for (int element = 0; element < elements; ++element) {
+            Q_ASSERT(!indexTaken(index, indices));
+
+            // adjust alignment
+            offset = aligned(offset, alignment);
+
+            attributes[index].bufferIndex = binding;
+            attributes[index].format = toMetalAttributeFormat(format);
+            attributes[index].offset = offset;
+
+            takeIndex(index, indices);
+            index++;
+            if (indexTaken(index, indices))
+                index = nextAttributeIndex(indices);
+
+            offset += size;
+        }
+    }
+}
+
+static inline bool matches(const QList<QShaderDescription::BlockVariable> &a, const QList<QShaderDescription::BlockVariable> &b)
+{
+    if (a.size() == b.size()) {
+        bool match = true;
+        for (int i = 0; i < a.size() && match; ++i) {
+            match &= a[i].type == b[i].type
+                    && a[i].arrayDims == b[i].arrayDims
+                    && matches(a[i].structMembers, b[i].structMembers);
+        }
+        return match;
+    }
+
+    return false;
 }
 
 static inline bool matches(const QShaderDescription::InOutVariable &a, const QShaderDescription::InOutVariable &b)
 {
     return a.location == b.location
             && a.type == b.type
-            && a.perPatch == b.perPatch;
+            && a.perPatch == b.perPatch
+            && matches(a.structMembers, b.structMembers);
 }
 
+//
+// Create the tessellation evaluation render pipeline state
+//
+// The tesc runs as a compute shader in a compute pipeline and writes per patch and per patch
+// control point data into separate storage buffers. The tese runs as a vertex shader in a render
+// pipeline. Our task is to generate a render pipeline descriptor for the tese that pulls vertices
+// from these buffers.
+//
+// As the buffers we are pulling vertices from are written by a compute pipeline, they follow the
+// MSL alignment conventions which we must take into account when generating our
+// MTLVertexDescriptor. We must include the user defined tese input attributes, and any builtins
+// that were used.
+//
+// SPIRV-Cross generates the MSL tese shader code with input attribute indices that reflect the
+// specified GLSL locations. Interface blocks are flattened with each member having an incremented
+// attribute index. SPIRV-Cross reports an error on compilation if there are clashes in the index
+// address space.
+//
+// After the user specified attributes are processed, SPIRV-Cross places the in-use builtins at the
+// next available (lowest value) attribute index. Tese builtins are processed in the following
+// order:
+//
+// in gl_PerVertex
+// {
+//   vec4 gl_Position;
+//   float gl_PointSize;
+//   float gl_ClipDistance[];
+// };
+//
+// patch in float gl_TessLevelOuter[4];
+// patch in float gl_TessLevelInner[2];
+//
+// Enumerations in QShaderDescription::BuiltinType are defined in this order.
+//
+// For quads, SPIRV-Cross places MTLQuadTessellationFactorsHalf per patch in the tessellation
+// factor buffer. For triangles it uses MTLTriangleTessellationFactorsHalf.
+//
+// It should be noted that SPIRV-Cross handles the following builtin inputs internally, with no
+// host side support required.
+//
+// in vec3 gl_TessCoord;
+// in int gl_PatchVerticesIn;
+// in int gl_PrimitiveID;
+//
 id<MTLRenderPipelineState> QMetalGraphicsPipelineData::Tessellation::teseFragRenderPipeline(QRhiMetal *rhiD, QMetalGraphicsPipeline *pipeline)
 {
     if (pipeline->d->ps)
@@ -4829,154 +5228,191 @@ id<MTLRenderPipelineState> QMetalGraphicsPipelineData::Tessellation::teseFragRen
     MTLRenderPipelineDescriptor *rpDesc = [[MTLRenderPipelineDescriptor alloc] init];
     MTLVertexDescriptor *vertexDesc = [MTLVertexDescriptor vertexDescriptor];
 
-    // Going to use the same buffer indices for the extra buffers as the tess.control compute shader did.
+    // tesc output buffers
     const QMap<int, int> &ebb(compTesc.nativeShaderInfo.extraBufferBindings);
     const int tescOutputBufferBinding = ebb.value(QShaderPrivate::MslTessVertTescOutputBufferBinding, -1);
     const int tescPatchOutputBufferBinding = ebb.value(QShaderPrivate::MslTessTescPatchOutputBufferBinding, -1);
     const int tessFactorBufferBinding = ebb.value(QShaderPrivate::MslTessTescTessLevelBufferBinding, -1);
-
-    QMap<int, QShaderDescription::InOutVariable> teseInVars;
-    for (const QShaderDescription::InOutVariable &teseInVar : vertTese.desc.inputVariables())
-        teseInVars[teseInVar.location] = teseInVar;
-
     quint32 offsetInTescOutput = 0;
     quint32 offsetInTescPatchOutput = 0;
-    int lastLocation = -1;
+    quint32 offsetInTessFactorBuffer = 0;
+    quint32 tescOutputAlignment = 0;
+    quint32 tescPatchOutputAlignment = 0;
+    quint32 tessFactorAlignment = 0;
+    QSet<int> usedBuffers;
 
-    // these need to be sorted in location order so that lastLocation is calculated correctly - use QMap.
+    // tesc output variables in ascending location order
     QMap<int, QShaderDescription::InOutVariable> tescOutVars;
-    for (const QShaderDescription::InOutVariable &tescOutVar : compTesc.desc.outputVariables())
+    for (const auto &tescOutVar : compTesc.desc.outputVariables())
         tescOutVars[tescOutVar.location] = tescOutVar;
 
-    for (const QShaderDescription::InOutVariable &tescOutVar : tescOutVars) {
-        const int location = tescOutVar.location;
-        lastLocation = location;
-        const QRhiVertexInputAttribute::Format format = rhiD->shaderDescVariableFormatToVertexInputFormat(tescOutVar.type);
-        if (teseInVars.contains(location)) {
-            if (!matches(teseInVars[location], tescOutVar)) {
-                qWarning() << "mismatched tessellation control output -> tesssellation evaluation input at location" << location;
-                qWarning() << "tesc out:" << tescOutVar << "tese in:" << teseInVars[location];
+    // tese input variables in ascending location order
+    QMap<int, QShaderDescription::InOutVariable> teseInVars;
+    for (const auto &teseInVar : vertTese.desc.inputVariables())
+        teseInVars[teseInVar.location] = teseInVar;
+
+    // bit mask tracking usage of vertex attribute indices
+    quint64 indices = 0;
+
+    for (QShaderDescription::InOutVariable &tescOutVar : tescOutVars) {
+
+        int index = tescOutVar.location;
+        int binding = -1;
+        quint32 *offset = nullptr;
+        quint32 *alignment = nullptr;
+
+        if (tescOutVar.perPatch) {
+            binding = tescPatchOutputBufferBinding;
+            offset = &offsetInTescPatchOutput;
+            alignment = &tescPatchOutputAlignment;
+        } else {
+            tescOutVar.arrayDims.removeLast();
+            binding = tescOutputBufferBinding;
+            offset = &offsetInTescOutput;
+            alignment = &tescOutputAlignment;
+        }
+
+        if (teseInVars.contains(index)) {
+
+            if (!matches(teseInVars[index], tescOutVar)) {
+                qWarning() << "mismatched tessellation control output -> tesssellation evaluation input at location" << index;
+                qWarning() << "    tesc out:" << tescOutVar;
+                qWarning() << "    tese in:" << teseInVars[index];
             }
-            if (tescOutVar.perPatch) {
-                if (tescPatchOutputBufferBinding >= 0) {
-                    vertexDesc.attributes[location].bufferIndex = tescPatchOutputBufferBinding;
-                    vertexDesc.attributes[location].format = toMetalAttributeFormat(format);
-                    vertexDesc.attributes[location].offset = offsetInTescPatchOutput;
-                }
+
+            if (binding != -1) {
+                addVertexAttribute(tescOutVar, binding, rhiD, index, *offset, vertexDesc.attributes, indices, *alignment);
+                usedBuffers << binding;
             } else {
-                if (tescOutputBufferBinding >= 0) {
-                    vertexDesc.attributes[location].bufferIndex = tescOutputBufferBinding;
-                    vertexDesc.attributes[location].format = toMetalAttributeFormat(format);
-                    vertexDesc.attributes[location].offset = offsetInTescOutput;
-                }
+                qWarning() << "baked tessellation control shader missing output buffer binding information";
+                addUnusedVertexAttribute(tescOutVar, rhiD, *offset, *alignment);
             }
+
         } else {
             qWarning() << "missing tessellation evaluation input for tessellation control output:" << tescOutVar;
+            addUnusedVertexAttribute(tescOutVar, rhiD, *offset, *alignment);
         }
-        if (tescOutVar.perPatch)
-            offsetInTescPatchOutput += rhiD->byteSizePerVertexForVertexInputFormat(format);
-        else
-            offsetInTescOutput += rhiD->byteSizePerVertexForVertexInputFormat(format);
+
+        teseInVars.remove(tescOutVar.location);
     }
 
-    const QVector<QShaderDescription::BuiltinVariable> tescOutBuiltins = compTesc.desc.outputBuiltinVariables();
-    const QVector<QShaderDescription::BuiltinVariable> teseInBuiltins = vertTese.desc.inputBuiltinVariables();
+    for (const QShaderDescription::InOutVariable &teseInVar : teseInVars)
+        qWarning() << "missing tessellation control output for tessellation evaluation input:" << teseInVar;
 
-    // Take a tess.control shader with an output variable layout(location = 0) out vec3 outColor[].
-    // Assume it also writes to glPosition, e.g. gl_out[gl_InvocationID].gl_Position = ...
-    // The tess.eval. shader translated to a Metal vertex function will then contain:
-    //
-    //    struct main0_in {
-    //      float3 inColor [[attribute(0)]];
-    //      float4 gl_Position [[attribute(1)]]; }
-    //
-    // The vertex description has to be set up accordingly. The color is
-    // simple because that will be in the input/output variable list with
-    // location 0. The position is a builtin however. So for now just
-    // assume that builtins such as that come after the other variables,
-    // with increasing location values.
+    // tesc output builtins in ascending location order
+    QMap<QShaderDescription::BuiltinType, QShaderDescription::BuiltinVariable> tescOutBuiltins;
+    for (const auto &tescOutBuiltin : compTesc.desc.outputBuiltinVariables())
+        tescOutBuiltins[tescOutBuiltin.type] = tescOutBuiltin;
 
-    if (hasBuiltin(tescOutBuiltins, QShaderDescription::PositionBuiltin)
-            && hasBuiltin(teseInBuiltins, QShaderDescription::PositionBuiltin)
-            && tescOutputBufferBinding >= 0)
-    {
-        const int location = ++lastLocation;
-        vertexDesc.attributes[location].bufferIndex = tescOutputBufferBinding;
-        vertexDesc.attributes[location].format = toMetalAttributeFormat(QRhiVertexInputAttribute::Float4);
-        vertexDesc.attributes[location].offset = offsetInTescOutput;
-        offsetInTescOutput += 4 * sizeof(float);
-    }
+    // tese input builtins in ascending location order
+    QMap<QShaderDescription::BuiltinType, QShaderDescription::BuiltinVariable> teseInBuiltins;
+    for (const auto &teseInBuiltin : vertTese.desc.inputBuiltinVariables())
+        teseInBuiltins[teseInBuiltin.type] = teseInBuiltin;
 
-    // Per-patch outputs from the tess.control stage. are mostly handled above.
-    // Consider:
-    //   layout(location = 1) patch in vec3 stuff;
-    //   layout(location = 2) patch in float more_stuff;
-    //
-    // This maps to:
-    //
-    //    struct main0_patchIn {
-    //      float3 stuff [[attribute(1)]];
-    //      float more_stuff [[attribute(2)]];
-    //      patch_control_point<main0_in> gl_in; };
-    //
-    // These are already in place (location 1 and 2, referencing the per-patch
-    // output buffer of tesc) at this point. But now if the tess.eval.shader
-    // reads gl_TessLevelInner and gl_TessLevelOuter, which are also per-patch,
-    // that adds, if the mode is triangles:
-    // (assuming gl_Position got location 3, sorted based on the builtin type
-    // (Position < Outer < Inner))
-    //
-    //     float4 gl_TessLevel [[attribute(4)]];
-    //
-    // or  if the mode is quads:
-    //
-    //    float4 gl_TessLevelOuter [[attribute(4)]];
-    //    float2 gl_TessLevelInner [[attribute(5)]];
-    //
-    // Like gl_Position, these built-ins needs to be handled specially.
-    // Note that the data is in a dedicated buffer, not in the patch buffer.
-
-    const bool hasTessLevelOuter = hasBuiltin(tescOutBuiltins, QShaderDescription::TessLevelOuterBuiltin)
-            && hasBuiltin(teseInBuiltins, QShaderDescription::TessLevelOuterBuiltin);
-    const bool hasTessLevelInner = hasBuiltin(tescOutBuiltins, QShaderDescription::TessLevelInnerBuiltin)
-            && hasBuiltin(teseInBuiltins, QShaderDescription::TessLevelInnerBuiltin);
-    if (vertTese.desc.tessellationMode() != QShaderDescription::TrianglesTessellationMode
-            && vertTese.desc.tessellationMode() != QShaderDescription::QuadTessellationMode)
-    {
-        qWarning("Tessellation evaluation stage mode is neither 'triangles' nor 'quads', this should not happen");
-    }
     const bool trianglesMode = vertTese.desc.tessellationMode() == QShaderDescription::TrianglesTessellationMode;
-    if ((hasTessLevelOuter || hasTessLevelInner) && tessFactorBufferBinding >= 0) {
-        int loc0 = -1;
-        int loc1 = -1;
-        if (trianglesMode) {
-            loc0 = ++lastLocation; // float4 gl_TessLevel
+    bool tessLevelAdded = false;
+
+    for (const QShaderDescription::BuiltinVariable &builtin : tescOutBuiltins) {
+
+        QShaderDescription::InOutVariable variable;
+        int binding = -1;
+        quint32 *offset = nullptr;
+        quint32 *alignment = nullptr;
+
+        switch (builtin.type) {
+        case QShaderDescription::BuiltinType::PositionBuiltin:
+            variable.type = QShaderDescription::VariableType::Vec4;
+            binding = tescOutputBufferBinding;
+            offset = &offsetInTescOutput;
+            alignment = &tescOutputAlignment;
+            break;
+        case QShaderDescription::BuiltinType::PointSizeBuiltin:
+            variable.type = QShaderDescription::VariableType::Float;
+            binding = tescOutputBufferBinding;
+            offset = &offsetInTescOutput;
+            alignment = &tescOutputAlignment;
+            break;
+        case QShaderDescription::BuiltinType::ClipDistanceBuiltin:
+            variable.type = QShaderDescription::VariableType::Float;
+            variable.arrayDims = builtin.arrayDims;
+            binding = tescOutputBufferBinding;
+            offset = &offsetInTescOutput;
+            alignment = &tescOutputAlignment;
+            break;
+        case QShaderDescription::BuiltinType::TessLevelOuterBuiltin:
+            variable.type = QShaderDescription::VariableType::Half4;
+            binding = tessFactorBufferBinding;
+            offset = &offsetInTessFactorBuffer;
+            tessLevelAdded = trianglesMode;
+            alignment = &tessFactorAlignment;
+            break;
+        case QShaderDescription::BuiltinType::TessLevelInnerBuiltin:
+            if (trianglesMode) {
+                if (!tessLevelAdded) {
+                    variable.type = QShaderDescription::VariableType::Half4;
+                    binding = tessFactorBufferBinding;
+                    offsetInTessFactorBuffer = 0;
+                    offset = &offsetInTessFactorBuffer;
+                    alignment = &tessFactorAlignment;
+                    tessLevelAdded = true;
+                } else {
+                    teseInBuiltins.remove(builtin.type);
+                    continue;
+                }
+            } else {
+                variable.type = QShaderDescription::VariableType::Half2;
+                binding = tessFactorBufferBinding;
+                offsetInTessFactorBuffer = 8;
+                offset = &offsetInTessFactorBuffer;
+                alignment = &tessFactorAlignment;
+            }
+            break;
+        default:
+            Q_UNREACHABLE();
+            break;
+        }
+
+        if (teseInBuiltins.contains(builtin.type)) {
+            if (binding != -1) {
+                int index = nextAttributeIndex(indices);
+                addVertexAttribute(variable, binding, rhiD, index, *offset, vertexDesc.attributes, indices, *alignment);
+                usedBuffers << binding;
+            } else {
+                qWarning() << "baked tessellation control shader missing output buffer binding information";
+                addUnusedVertexAttribute(variable, rhiD, *offset, *alignment);
+            }
         } else {
-            loc0 = ++lastLocation; // float4 gl_TessLevelOuter
-            loc1 = ++lastLocation; // float2 gl_TessLevelInner
+            addUnusedVertexAttribute(variable, rhiD, *offset, *alignment);
         }
-        if (loc0 >= 0) {
-            vertexDesc.attributes[loc0].bufferIndex = tessFactorBufferBinding;
-            vertexDesc.attributes[loc0].format = MTLVertexFormatHalf4;
-            vertexDesc.attributes[loc0].offset = 0;
-        }
-        if (loc1 >= 0) {
-            vertexDesc.attributes[loc1].bufferIndex = tessFactorBufferBinding;
-            vertexDesc.attributes[loc1].format = MTLVertexFormatHalf2;
-            vertexDesc.attributes[loc1].offset = 8;
-        }
-        vertexDesc.layouts[tessFactorBufferBinding].stepFunction = MTLVertexStepFunctionPerPatch;
-        vertexDesc.layouts[tessFactorBufferBinding].stride = trianglesMode ? 8 : 12;
+
+        teseInBuiltins.remove(builtin.type);
     }
 
-    if (offsetInTescOutput > 0) {
+    for (const QShaderDescription::BuiltinVariable &builtin : teseInBuiltins) {
+        switch (builtin.type) {
+        case QShaderDescription::BuiltinType::PositionBuiltin:
+        case QShaderDescription::BuiltinType::PointSizeBuiltin:
+        case QShaderDescription::BuiltinType::ClipDistanceBuiltin:
+            qWarning() << "missing tessellation control output for tessellation evaluation builtin input:" << builtin;
+            break;
+        default:
+            break;
+        }
+    }
+
+    if (usedBuffers.contains(tescOutputBufferBinding)) {
         vertexDesc.layouts[tescOutputBufferBinding].stepFunction = MTLVertexStepFunctionPerPatchControlPoint;
-        vertexDesc.layouts[tescOutputBufferBinding].stride = offsetInTescOutput;
+        vertexDesc.layouts[tescOutputBufferBinding].stride = aligned(offsetInTescOutput, tescOutputAlignment);
     }
 
-    if (offsetInTescPatchOutput > 0) {
+    if (usedBuffers.contains(tescPatchOutputBufferBinding)) {
         vertexDesc.layouts[tescPatchOutputBufferBinding].stepFunction = MTLVertexStepFunctionPerPatch;
-        vertexDesc.layouts[tescPatchOutputBufferBinding].stride = offsetInTescPatchOutput;
+        vertexDesc.layouts[tescPatchOutputBufferBinding].stride = aligned(offsetInTescPatchOutput, tescPatchOutputAlignment);
+    }
+
+    if (usedBuffers.contains(tessFactorBufferBinding)) {
+        vertexDesc.layouts[tessFactorBufferBinding].stepFunction = MTLVertexStepFunctionPerPatch;
+        vertexDesc.layouts[tessFactorBufferBinding].stride = trianglesMode ? sizeof(MTLTriangleTessellationFactorsHalf) : sizeof(MTLQuadTessellationFactorsHalf);
     }
 
     rpDesc.vertexDescriptor = vertexDesc;
@@ -5217,7 +5653,9 @@ bool QMetalGraphicsPipeline::createTessellationPipelines(const QShader &tessVert
     }
     d->fs.lib = fragLib;
     d->fs.func = fragFunc;
-    d->fs.nativeResourceBindingMap = tese.nativeResourceBindingMap(activeKey);
+    d->fs.desc = tessFrag.description();
+    d->fs.nativeShaderInfo = tessFrag.nativeShaderInfo(activeKey);
+    d->fs.nativeResourceBindingMap = tessFrag.nativeResourceBindingMap(activeKey);
 
     if (!d->tess.teseFragRenderPipeline(rhiD, this)) {
         qWarning("Failed to pre-generate render pipeline for tessellation evaluation + fragment shader");
@@ -5276,6 +5714,42 @@ bool QMetalGraphicsPipeline::create()
     if (!ok)
         return false;
 
+    // SPIRV-Cross buffer size buffers
+    int buffers = 0;
+    QVarLengthArray<QMetalShader *, 6> shaders;
+    if (d->tess.enabled) {
+        shaders.append(&d->tess.compVs[0]);
+        shaders.append(&d->tess.compVs[1]);
+        shaders.append(&d->tess.compVs[2]);
+        shaders.append(&d->tess.compTesc);
+        shaders.append(&d->tess.vertTese);
+    } else {
+        shaders.append(&d->vs);
+    }
+    shaders.append(&d->fs);
+
+    for (QMetalShader *shader : shaders) {
+        if (shader->nativeShaderInfo.extraBufferBindings.contains(QShaderPrivate::MslBufferSizeBufferBinding)) {
+            const int binding = shader->nativeShaderInfo.extraBufferBindings[QShaderPrivate::MslBufferSizeBufferBinding];
+            shader->nativeResourceBindingMap[binding] = qMakePair(binding, -1);
+            int maxNativeBinding = 0;
+            for (const QShaderDescription::StorageBlock &block : shader->desc.storageBlocks())
+                maxNativeBinding = qMax(maxNativeBinding, shader->nativeResourceBindingMap[block.binding].first);
+
+            // we use one buffer to hold data for all graphics shader stages, each with a different offset.
+            // buffer offsets must be 32byte aligned - adjust buffer count accordingly
+            buffers += ((maxNativeBinding + 1 + 7) / 8) * 8;
+        }
+    }
+
+    if (buffers) {
+        if (!d->bufferSizeBuffer)
+            d->bufferSizeBuffer = new QMetalBuffer(rhiD, QRhiBuffer::Static, QRhiBuffer::StorageBuffer, buffers * sizeof(int));
+
+        d->bufferSizeBuffer->setSize(buffers * sizeof(int));
+        d->bufferSizeBuffer->create();
+    }
+
     rhiD->pipelineCreationEnd();
     lastActiveFrameSlot = -1;
     generation += 1;
@@ -5302,6 +5776,9 @@ void QMetalComputePipeline::destroy()
     if (!d->ps)
         return;
 
+    delete d->bufferSizeBuffer;
+    d->bufferSizeBuffer = nullptr;
+
     QRhiMetalData::DeferredReleaseEntry e;
     e.type = QRhiMetalData::DeferredReleaseEntry::ComputePipeline;
     e.lastActiveFrameSlot = lastActiveFrameSlot;
@@ -5370,6 +5847,14 @@ bool QMetalComputePipeline::create()
         d->cs.func = func;
         d->cs.localSize = shader.description().computeShaderLocalSize();
         d->cs.nativeResourceBindingMap = shader.nativeResourceBindingMap(activeKey);
+        d->cs.desc = shader.description();
+        d->cs.nativeShaderInfo = shader.nativeShaderInfo(activeKey);
+
+        // SPIRV-Cross buffer size buffers
+        if (d->cs.nativeShaderInfo.extraBufferBindings.contains(QShaderPrivate::MslBufferSizeBufferBinding)) {
+            const int binding = d->cs.nativeShaderInfo.extraBufferBindings[QShaderPrivate::MslBufferSizeBufferBinding];
+            d->cs.nativeResourceBindingMap[binding] = qMakePair(binding, -1);
+        }
 
         if (rhiD->d->shaderCache.count() >= QRhiMetal::MAX_SHADER_CACHE_ENTRIES) {
             for (QMetalShader &s : rhiD->d->shaderCache)
@@ -5404,6 +5889,21 @@ bool QMetalComputePipeline::create()
         return false;
     }
 
+    // SPIRV-Cross buffer size buffers
+    if (d->cs.nativeShaderInfo.extraBufferBindings.contains(QShaderPrivate::MslBufferSizeBufferBinding)) {
+        int buffers = 0;
+        for (const QShaderDescription::StorageBlock &block : d->cs.desc.storageBlocks())
+            buffers = qMax(buffers, d->cs.nativeResourceBindingMap[block.binding].first);
+
+        buffers += 1;
+
+        if (!d->bufferSizeBuffer)
+            d->bufferSizeBuffer = new QMetalBuffer(rhiD, QRhiBuffer::Static, QRhiBuffer::StorageBuffer, buffers * sizeof(int));
+
+        d->bufferSizeBuffer->setSize(buffers * sizeof(int));
+        d->bufferSizeBuffer->create();
+    }
+
     rhiD->pipelineCreationEnd();
     lastActiveFrameSlot = -1;
     generation += 1;
@@ -5436,8 +5936,9 @@ const QRhiNativeHandles *QMetalCommandBuffer::nativeHandles()
     return &nativeHandlesStruct;
 }
 
-void QMetalCommandBuffer::resetState()
+void QMetalCommandBuffer::resetState(double lastGpuTime)
 {
+    d->lastGpuTime = lastGpuTime;
     d->currentRenderPassEncoder = nil;
     d->currentComputePassEncoder = nil;
     d->tessellationComputeEncoder = nil;
@@ -5502,8 +6003,7 @@ void QMetalSwapChain::destroy()
     for (int i = 0; i < QMTL_FRAMES_IN_FLIGHT; ++i) {
         if (d->sem[i]) {
             // the semaphores cannot be released if they do not have the initial value
-            dispatch_semaphore_wait(d->sem[i], DISPATCH_TIME_FOREVER);
-            dispatch_semaphore_signal(d->sem[i]);
+            waitUntilCompleted(i);
 
             dispatch_release(d->sem[i]);
             d->sem[i] = nullptr;
@@ -5515,6 +6015,12 @@ void QMetalSwapChain::destroy()
         d->msaaTex[i] = nil;
     }
 
+#ifdef Q_OS_MACOS
+    d->liveResizeStartObserver.remove();
+    d->liveResizeEndObserver.remove();
+    d->liveResizeObserverSet = false;
+#endif
+
     d->layer = nullptr;
 
     [d->curDrawable release];
@@ -5581,7 +6087,7 @@ bool QMetalSwapChain::isFormatSupported(Format f)
 {
     if (f == HDRExtendedSrgbLinear) {
         if (@available(macOS 10.11, iOS 16.0, *))
-            return true;
+            return hdrInfo().limits.colorComponentValue.maxPotentialColorComponentValue > 1.0f;
         else
             return false;
     }
@@ -5628,6 +6134,17 @@ void QMetalSwapChain::chooseFormats()
     d->rhiColorFormat = QRhiTexture::BGRA8;
 }
 
+void QMetalSwapChain::waitUntilCompleted(int slot)
+{
+    // wait+signal is the general pattern to ensure the commands for a
+    // given frame slot have completed (if sem is 1, we go 0 then 1; if
+    // sem is 0 we go -1, block, completion increments to 0, then us to 1)
+
+    dispatch_semaphore_t sem = d->sem[slot];
+    dispatch_semaphore_wait(sem, DISPATCH_TIME_FOREVER);
+    dispatch_semaphore_signal(sem);
+}
+
 bool QMetalSwapChain::createOrResize()
 {
     Q_ASSERT(m_window);
@@ -5699,10 +6216,39 @@ bool QMetalSwapChain::createOrResize()
 
     [d->layer setDevice: rhiD->d->dev];
 
+#ifdef Q_OS_MACOS
+    // Can only use presentsWithTransaction (to get smooth resizing) when
+    // presenting from the main (gui) thread. We predict that based on the
+    // thread this function is called on since if the QRhiSwapChain is
+    // initialied on a given thread then that's almost certainly the thread on
+    // which the QRhi renders and presents.
+    const bool canUsePresentsWithTransaction = NSThread.isMainThread;
+
+    // Have an env.var. just in case it turns out presentsWithTransaction is
+    // not desired in some specific case.
+    static bool allowPresentsWithTransaction = !qEnvironmentVariableIntValue("QT_MTL_NO_TRANSACTION");
+
+    if (allowPresentsWithTransaction && canUsePresentsWithTransaction && !d->liveResizeObserverSet) {
+        d->liveResizeObserverSet = true;
+        NSView *view = reinterpret_cast<NSView *>(window->winId());
+        NSWindow *window = view.window;
+        if (window) {
+            qCDebug(QRHI_LOG_INFO, "will set presentsWithTransaction during live resize");
+            d->liveResizeStartObserver = QMacNotificationObserver(window, NSWindowWillStartLiveResizeNotification, [this] {
+                d->layer.presentsWithTransaction = true;
+            });
+            d->liveResizeEndObserver = QMacNotificationObserver(window, NSWindowDidEndLiveResizeNotification, [this] {
+                d->layer.presentsWithTransaction = false;
+            });
+        }
+    }
+#endif
+
     [d->curDrawable release];
     d->curDrawable = nil;
 
     for (int i = 0; i < QMTL_FRAMES_IN_FLIGHT; ++i) {
+        d->lastGpuTime[i] = 0;
         if (!d->sem[i])
             d->sem[i] = dispatch_semaphore_create(QMTL_FRAMES_IN_FLIGHT - 1);
     }
@@ -5768,16 +6314,20 @@ QRhiSwapChainHdrInfo QMetalSwapChain::hdrInfo()
     info.limits.colorComponentValue.maxColorComponentValue = 1;
     info.isHardCodedDefaults = true;
 
-    if (m_format != SDR && m_window) {
+    if (m_window) {
         // Must use m_window, not window, given this may be called before createOrResize().
 #ifdef Q_OS_MACOS
         NSView *view = reinterpret_cast<NSView *>(m_window->winId());
-        info.limits.colorComponentValue.maxColorComponentValue = view.window.screen.maximumExtendedDynamicRangeColorComponentValue;
+        NSScreen *screen = view.window.screen;
+        info.limits.colorComponentValue.maxColorComponentValue = screen.maximumExtendedDynamicRangeColorComponentValue;
+        info.limits.colorComponentValue.maxPotentialColorComponentValue = screen.maximumPotentialExtendedDynamicRangeColorComponentValue;
         info.isHardCodedDefaults = false;
 #else
         if (@available(iOS 16.0, *)) {
             UIView *view = reinterpret_cast<UIView *>(m_window->winId());
+            UIScreen *screen = view.window.windowScene.screen;
             info.limits.colorComponentValue.maxColorComponentValue = view.window.windowScene.screen.currentEDRHeadroom;
+            info.limits.colorComponentValue.maxPotentialColorComponentValue = screen.potentialEDRHeadroom;
             info.isHardCodedDefaults = false;
         }
 #endif
diff --git a/src/gui/rhi/qrhimetal_p.h b/src/gui/rhi/qrhimetal_p.h
index 016bf749..8fb2ce84 100644
--- a/src/gui/rhi/qrhimetal_p.h
+++ b/src/gui/rhi/qrhimetal_p.h
@@ -1,8 +1,8 @@
-// Copyright (C) 2019 The Qt Company Ltd.
+// Copyright (C) 2023 The Qt Company Ltd.
 // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
 
-#ifndef QRHIMETAL_H
-#define QRHIMETAL_H
+#ifndef QRHIMETAL_P_H
+#define QRHIMETAL_P_H
 
 //
 //  W A R N I N G
@@ -15,29 +15,493 @@
 // We mean it.
 //
 
-#include <private/qrhi_p.h>
-
-Q_FORWARD_DECLARE_OBJC_CLASS(MTLDevice);
-Q_FORWARD_DECLARE_OBJC_CLASS(MTLCommandQueue);
-Q_FORWARD_DECLARE_OBJC_CLASS(MTLCommandBuffer);
-Q_FORWARD_DECLARE_OBJC_CLASS(MTLRenderCommandEncoder);
+#include "qrhi_p.h"
+#include <QWindow>
 
 QT_BEGIN_NAMESPACE
 
-struct Q_GUI_EXPORT QRhiMetalInitParams : public QRhiInitParams
+static const int QMTL_FRAMES_IN_FLIGHT = 2;
+
+// have to hide the ObjC stuff, this header cannot contain MTL* at all
+struct QMetalBufferData;
+
+struct QMetalBuffer : public QRhiBuffer
 {
+    QMetalBuffer(QRhiImplementation *rhi, Type type, UsageFlags usage, quint32 size);
+    ~QMetalBuffer();
+    void destroy() override;
+    bool create() override;
+    QRhiBuffer::NativeBuffer nativeBuffer() override;
+    char *beginFullDynamicBufferUpdateForCurrentFrame() override;
+    void endFullDynamicBufferUpdateForCurrentFrame() override;
+
+    QMetalBufferData *d;
+    uint generation = 0;
+    int lastActiveFrameSlot = -1;
+    friend class QRhiMetal;
+    friend struct QMetalShaderResourceBindings;
+
+    static constexpr int WorkBufPoolUsage = 1 << 8;
+    static_assert(WorkBufPoolUsage > QRhiBuffer::StorageBuffer);
 };
 
-struct Q_GUI_EXPORT QRhiMetalNativeHandles : public QRhiNativeHandles
+struct QMetalRenderBufferData;
+
+struct QMetalRenderBuffer : public QRhiRenderBuffer
 {
-    MTLDevice *dev = nullptr;
-    MTLCommandQueue *cmdQueue = nullptr;
+    QMetalRenderBuffer(QRhiImplementation *rhi, Type type, const QSize &pixelSize,
+                       int sampleCount, QRhiRenderBuffer::Flags flags,
+                       QRhiTexture::Format backingFormatHint);
+    ~QMetalRenderBuffer();
+    void destroy() override;
+    bool create() override;
+    QRhiTexture::Format backingFormat() const override;
+
+    QMetalRenderBufferData *d;
+    int samples = 1;
+    uint generation = 0;
+    int lastActiveFrameSlot = -1;
+    friend class QRhiMetal;
 };
 
-struct Q_GUI_EXPORT QRhiMetalCommandBufferNativeHandles : public QRhiNativeHandles
+struct QMetalTextureData;
+
+struct QMetalTexture : public QRhiTexture
 {
-    MTLCommandBuffer *commandBuffer = nullptr;
-    MTLRenderCommandEncoder *encoder = nullptr;
+    QMetalTexture(QRhiImplementation *rhi, Format format, const QSize &pixelSize, int depth,
+                  int arraySize, int sampleCount, Flags flags);
+    ~QMetalTexture();
+    void destroy() override;
+    bool create() override;
+    bool createFrom(NativeTexture src) override;
+    NativeTexture nativeTexture() override;
+
+    bool prepareCreate(QSize *adjustedSize = nullptr);
+
+    QMetalTextureData *d;
+    int mipLevelCount = 0;
+    int samples = 1;
+    uint generation = 0;
+    int lastActiveFrameSlot = -1;
+    friend class QRhiMetal;
+    friend struct QMetalShaderResourceBindings;
+    friend struct QMetalTextureData;
+};
+
+struct QMetalSamplerData;
+
+struct QMetalSampler : public QRhiSampler
+{
+    QMetalSampler(QRhiImplementation *rhi, Filter magFilter, Filter minFilter, Filter mipmapMode,
+                  AddressMode u, AddressMode v, AddressMode w);
+    ~QMetalSampler();
+    void destroy() override;
+    bool create() override;
+
+    QMetalSamplerData *d;
+    uint generation = 0;
+    int lastActiveFrameSlot = -1;
+    friend class QRhiMetal;
+    friend struct QMetalShaderResourceBindings;
+};
+
+struct QMetalRenderPassDescriptor : public QRhiRenderPassDescriptor
+{
+    QMetalRenderPassDescriptor(QRhiImplementation *rhi);
+    ~QMetalRenderPassDescriptor();
+    void destroy() override;
+    bool isCompatible(const QRhiRenderPassDescriptor *other) const override;
+    QRhiRenderPassDescriptor *newCompatibleRenderPassDescriptor() const override;
+    QVector<quint32> serializedFormat() const override;
+
+    void updateSerializedFormat();
+
+    // there is no MTLRenderPassDescriptor here as one will be created for each pass in beginPass()
+
+    // but the things needed for the render pipeline descriptor have to be provided
+    static const int MAX_COLOR_ATTACHMENTS = 8;
+    int colorAttachmentCount = 0;
+    bool hasDepthStencil = false;
+    int colorFormat[MAX_COLOR_ATTACHMENTS];
+    int dsFormat;
+    QVector<quint32> serializedFormatData;
+};
+
+struct QMetalRenderTargetData;
+
+struct QMetalSwapChainRenderTarget : public QRhiSwapChainRenderTarget
+{
+    QMetalSwapChainRenderTarget(QRhiImplementation *rhi, QRhiSwapChain *swapchain);
+    ~QMetalSwapChainRenderTarget();
+    void destroy() override;
+
+    QSize pixelSize() const override;
+    float devicePixelRatio() const override;
+    int sampleCount() const override;
+
+    QMetalRenderTargetData *d;
+};
+
+struct QMetalTextureRenderTarget : public QRhiTextureRenderTarget
+{
+    QMetalTextureRenderTarget(QRhiImplementation *rhi, const QRhiTextureRenderTargetDescription &desc, Flags flags);
+    ~QMetalTextureRenderTarget();
+    void destroy() override;
+
+    QSize pixelSize() const override;
+    float devicePixelRatio() const override;
+    int sampleCount() const override;
+
+    QRhiRenderPassDescriptor *newCompatibleRenderPassDescriptor() override;
+    bool create() override;
+
+    QMetalRenderTargetData *d;
+    friend class QRhiMetal;
+};
+
+struct QMetalShaderResourceBindings : public QRhiShaderResourceBindings
+{
+    QMetalShaderResourceBindings(QRhiImplementation *rhi);
+    ~QMetalShaderResourceBindings();
+    void destroy() override;
+    bool create() override;
+    void updateResources(UpdateFlags flags) override;
+
+    QVarLengthArray<QRhiShaderResourceBinding, 8> sortedBindings;
+    int maxBinding = -1;
+
+    struct BoundUniformBufferData {
+        quint64 id;
+        uint generation;
+    };
+    struct BoundSampledTextureData {
+        int count;
+        struct {
+            quint64 texId;
+            uint texGeneration;
+            quint64 samplerId;
+            uint samplerGeneration;
+        } d[QRhiShaderResourceBinding::Data::MAX_TEX_SAMPLER_ARRAY_SIZE];
+    };
+    struct BoundStorageImageData {
+        quint64 id;
+        uint generation;
+    };
+    struct BoundStorageBufferData {
+        quint64 id;
+        uint generation;
+    };
+    struct BoundResourceData {
+        union {
+            BoundUniformBufferData ubuf;
+            BoundSampledTextureData stex;
+            BoundStorageImageData simage;
+            BoundStorageBufferData sbuf;
+        };
+    };
+    QVarLengthArray<BoundResourceData, 8> boundResourceData;
+
+    uint generation = 0;
+    friend class QRhiMetal;
+};
+
+struct QMetalGraphicsPipelineData;
+struct QMetalCommandBuffer;
+
+struct QMetalGraphicsPipeline : public QRhiGraphicsPipeline
+{
+    QMetalGraphicsPipeline(QRhiImplementation *rhi);
+    ~QMetalGraphicsPipeline();
+    void destroy() override;
+    bool create() override;
+
+    void makeActiveForCurrentRenderPassEncoder(QMetalCommandBuffer *cbD);
+    void setupAttachmentsInMetalRenderPassDescriptor(void *metalRpDesc, QMetalRenderPassDescriptor *rpD);
+    void setupMetalDepthStencilDescriptor(void *metalDsDesc);
+    void mapStates();
+    bool createVertexFragmentPipeline();
+    bool createTessellationPipelines(const QShader &tessVert, const QShader &tesc, const QShader &tese, const QShader &tessFrag);
+
+    QMetalGraphicsPipelineData *d;
+    uint generation = 0;
+    int lastActiveFrameSlot = -1;
+    friend class QRhiMetal;
+};
+
+struct QMetalComputePipelineData;
+
+struct QMetalComputePipeline : public QRhiComputePipeline
+{
+    QMetalComputePipeline(QRhiImplementation *rhi);
+    ~QMetalComputePipeline();
+    void destroy() override;
+    bool create() override;
+
+    QMetalComputePipelineData *d;
+    uint generation = 0;
+    int lastActiveFrameSlot = -1;
+    friend class QRhiMetal;
+};
+
+struct QMetalCommandBufferData;
+struct QMetalSwapChain;
+
+struct QMetalCommandBuffer : public QRhiCommandBuffer
+{
+    QMetalCommandBuffer(QRhiImplementation *rhi);
+    ~QMetalCommandBuffer();
+    void destroy() override;
+
+    QMetalCommandBufferData *d = nullptr;
+    QRhiMetalCommandBufferNativeHandles nativeHandlesStruct;
+
+    enum PassType {
+        NoPass,
+        RenderPass,
+        ComputePass
+    };
+
+    // per-pass (render or compute command encoder) persistent state
+    PassType recordingPass;
+    QRhiRenderTarget *currentTarget;
+
+    // per-pass (render or compute command encoder) volatile (cached) state
+    QMetalGraphicsPipeline *currentGraphicsPipeline;
+    QMetalComputePipeline *currentComputePipeline;
+    uint currentPipelineGeneration;
+    QMetalShaderResourceBindings *currentGraphicsSrb;
+    QMetalShaderResourceBindings *currentComputeSrb;
+    uint currentSrbGeneration;
+    int currentResSlot;
+    QMetalBuffer *currentIndexBuffer;
+    quint32 currentIndexOffset;
+    QRhiCommandBuffer::IndexFormat currentIndexFormat;
+    int currentCullMode;
+    int currentTriangleFillMode;
+    int currentFrontFaceWinding;
+    QPair<float, float> currentDepthBiasValues;
+
+    const QRhiNativeHandles *nativeHandles();
+    void resetState(double lastGpuTime = 0);
+    void resetPerPassState();
+    void resetPerPassCachedState();
+};
+
+struct QMetalSwapChainData;
+
+struct QMetalSwapChain : public QRhiSwapChain
+{
+    QMetalSwapChain(QRhiImplementation *rhi);
+    ~QMetalSwapChain();
+    void destroy() override;
+
+    QRhiCommandBuffer *currentFrameCommandBuffer() override;
+    QRhiRenderTarget *currentFrameRenderTarget() override;
+    QSize surfacePixelSize() override;
+    bool isFormatSupported(Format f) override;
+
+    QRhiRenderPassDescriptor *newCompatibleRenderPassDescriptor() override;
+
+    bool createOrResize() override;
+
+    virtual QRhiSwapChainHdrInfo hdrInfo() override;
+
+    void chooseFormats();
+    void waitUntilCompleted(int slot);
+
+    QWindow *window = nullptr;
+    QSize pixelSize;
+    int currentFrameSlot = 0; // 0..QMTL_FRAMES_IN_FLIGHT-1
+    int frameCount = 0;
+    int samples = 1;
+    QMetalSwapChainRenderTarget rtWrapper;
+    QMetalCommandBuffer cbWrapper;
+    QMetalRenderBuffer *ds = nullptr;
+    QMetalSwapChainData *d = nullptr;
+};
+
+struct QRhiMetalData;
+
+class QRhiMetal : public QRhiImplementation
+{
+public:
+    QRhiMetal(QRhiMetalInitParams *params, QRhiMetalNativeHandles *importDevice = nullptr);
+    ~QRhiMetal();
+
+    static bool probe(QRhiMetalInitParams *params);
+    static QRhiSwapChainProxyData updateSwapChainProxyData(QWindow *window);
+
+    bool create(QRhi::Flags flags) override;
+    void destroy() override;
+
+    QRhiGraphicsPipeline *createGraphicsPipeline() override;
+    QRhiComputePipeline *createComputePipeline() override;
+    QRhiShaderResourceBindings *createShaderResourceBindings() override;
+    QRhiBuffer *createBuffer(QRhiBuffer::Type type,
+                             QRhiBuffer::UsageFlags usage,
+                             quint32 size) override;
+    QRhiRenderBuffer *createRenderBuffer(QRhiRenderBuffer::Type type,
+                                         const QSize &pixelSize,
+                                         int sampleCount,
+                                         QRhiRenderBuffer::Flags flags,
+                                         QRhiTexture::Format backingFormatHint) override;
+    QRhiTexture *createTexture(QRhiTexture::Format format,
+                               const QSize &pixelSize,
+                               int depth,
+                               int arraySize,
+                               int sampleCount,
+                               QRhiTexture::Flags flags) override;
+    QRhiSampler *createSampler(QRhiSampler::Filter magFilter,
+                               QRhiSampler::Filter minFilter,
+                               QRhiSampler::Filter mipmapMode,
+                               QRhiSampler:: AddressMode u,
+                               QRhiSampler::AddressMode v,
+                               QRhiSampler::AddressMode w) override;
+
+    QRhiTextureRenderTarget *createTextureRenderTarget(const QRhiTextureRenderTargetDescription &desc,
+                                                       QRhiTextureRenderTarget::Flags flags) override;
+
+    QRhiSwapChain *createSwapChain() override;
+    QRhi::FrameOpResult beginFrame(QRhiSwapChain *swapChain, QRhi::BeginFrameFlags flags) override;
+    QRhi::FrameOpResult endFrame(QRhiSwapChain *swapChain, QRhi::EndFrameFlags flags) override;
+    QRhi::FrameOpResult beginOffscreenFrame(QRhiCommandBuffer **cb, QRhi::BeginFrameFlags flags) override;
+    QRhi::FrameOpResult endOffscreenFrame(QRhi::EndFrameFlags flags) override;
+    QRhi::FrameOpResult finish() override;
+
+    void resourceUpdate(QRhiCommandBuffer *cb, QRhiResourceUpdateBatch *resourceUpdates) override;
+
+    void beginPass(QRhiCommandBuffer *cb,
+                   QRhiRenderTarget *rt,
+                   const QColor &colorClearValue,
+                   const QRhiDepthStencilClearValue &depthStencilClearValue,
+                   QRhiResourceUpdateBatch *resourceUpdates,
+                   QRhiCommandBuffer::BeginPassFlags flags) override;
+    void endPass(QRhiCommandBuffer *cb, QRhiResourceUpdateBatch *resourceUpdates) override;
+
+    void setGraphicsPipeline(QRhiCommandBuffer *cb,
+                             QRhiGraphicsPipeline *ps) override;
+
+    void setShaderResources(QRhiCommandBuffer *cb,
+                            QRhiShaderResourceBindings *srb,
+                            int dynamicOffsetCount,
+                            const QRhiCommandBuffer::DynamicOffset *dynamicOffsets) override;
+
+    void setVertexInput(QRhiCommandBuffer *cb,
+                        int startBinding, int bindingCount, const QRhiCommandBuffer::VertexInput *bindings,
+                        QRhiBuffer *indexBuf, quint32 indexOffset,
+                        QRhiCommandBuffer::IndexFormat indexFormat) override;
+
+    void setViewport(QRhiCommandBuffer *cb, const QRhiViewport &viewport) override;
+    void setScissor(QRhiCommandBuffer *cb, const QRhiScissor &scissor) override;
+    void setBlendConstants(QRhiCommandBuffer *cb, const QColor &c) override;
+    void setStencilRef(QRhiCommandBuffer *cb, quint32 refValue) override;
+
+    void draw(QRhiCommandBuffer *cb, quint32 vertexCount,
+              quint32 instanceCount, quint32 firstVertex, quint32 firstInstance) override;
+
+    void drawIndexed(QRhiCommandBuffer *cb, quint32 indexCount,
+                     quint32 instanceCount, quint32 firstIndex,
+                     qint32 vertexOffset, quint32 firstInstance) override;
+
+    void debugMarkBegin(QRhiCommandBuffer *cb, const QByteArray &name) override;
+    void debugMarkEnd(QRhiCommandBuffer *cb) override;
+    void debugMarkMsg(QRhiCommandBuffer *cb, const QByteArray &msg) override;
+
+    void beginComputePass(QRhiCommandBuffer *cb,
+                          QRhiResourceUpdateBatch *resourceUpdates,
+                          QRhiCommandBuffer::BeginPassFlags flags) override;
+    void endComputePass(QRhiCommandBuffer *cb, QRhiResourceUpdateBatch *resourceUpdates) override;
+    void setComputePipeline(QRhiCommandBuffer *cb, QRhiComputePipeline *ps) override;
+    void dispatch(QRhiCommandBuffer *cb, int x, int y, int z) override;
+
+    const QRhiNativeHandles *nativeHandles(QRhiCommandBuffer *cb) override;
+    void beginExternal(QRhiCommandBuffer *cb) override;
+    void endExternal(QRhiCommandBuffer *cb) override;
+    double lastCompletedGpuTime(QRhiCommandBuffer *cb) override;
+
+    QList<int> supportedSampleCounts() const override;
+    int ubufAlignment() const override;
+    bool isYUpInFramebuffer() const override;
+    bool isYUpInNDC() const override;
+    bool isClipDepthZeroToOne() const override;
+    QMatrix4x4 clipSpaceCorrMatrix() const override;
+    bool isTextureFormatSupported(QRhiTexture::Format format, QRhiTexture::Flags flags) const override;
+    bool isFeatureSupported(QRhi::Feature feature) const override;
+    int resourceLimit(QRhi::ResourceLimit limit) const override;
+    const QRhiNativeHandles *nativeHandles() override;
+    QRhiDriverInfo driverInfo() const override;
+    QRhiStats statistics() override;
+    bool makeThreadLocalNativeContextCurrent() override;
+    void releaseCachedResources() override;
+    bool isDeviceLost() const override;
+
+    QByteArray pipelineCacheData() override;
+    void setPipelineCacheData(const QByteArray &data) override;
+
+    void executeDeferredReleases(bool forced = false);
+    void finishActiveReadbacks(bool forced = false);
+    qsizetype subresUploadByteSize(const QRhiTextureSubresourceUploadDescription &subresDesc) const;
+    void enqueueSubresUpload(QMetalTexture *texD, void *mp, void *blitEncPtr,
+                             int layer, int level, const QRhiTextureSubresourceUploadDescription &subresDesc,
+                             qsizetype *curOfs);
+    void enqueueResourceUpdates(QRhiCommandBuffer *cb, QRhiResourceUpdateBatch *resourceUpdates);
+    void executeBufferHostWritesForSlot(QMetalBuffer *bufD, int slot);
+    void executeBufferHostWritesForCurrentFrame(QMetalBuffer *bufD);
+    static const int SUPPORTED_STAGES = 5;
+    void enqueueShaderResourceBindings(QMetalShaderResourceBindings *srbD,
+                                       QMetalCommandBuffer *cbD,
+                                       int dynamicOffsetCount,
+                                       const QRhiCommandBuffer::DynamicOffset *dynamicOffsets,
+                                       bool offsetOnlyChange,
+                                       const QShader::NativeResourceBindingMap *nativeResourceBindingMaps[SUPPORTED_STAGES]);
+    int effectiveSampleCount(int sampleCount) const;
+    struct TessDrawArgs {
+        QMetalCommandBuffer *cbD;
+        enum {
+            NonIndexed,
+            U16Indexed,
+            U32Indexed
+        } type;
+        struct NonIndexedArgs {
+            quint32 vertexCount;
+            quint32 instanceCount;
+            quint32 firstVertex;
+            quint32 firstInstance;
+        };
+        struct IndexedArgs {
+            quint32 indexCount;
+            quint32 instanceCount;
+            quint32 firstIndex;
+            qint32 vertexOffset;
+            quint32 firstInstance;
+            void *indexBuffer;
+        };
+        union {
+            NonIndexedArgs draw;
+            IndexedArgs drawIndexed;
+        };
+    };
+    void tessellatedDraw(const TessDrawArgs &args);
+
+    QRhi::Flags rhiFlags;
+    bool importedDevice = false;
+    bool importedCmdQueue = false;
+    QMetalSwapChain *currentSwapChain = nullptr;
+    QSet<QMetalSwapChain *> swapchains;
+    QRhiMetalNativeHandles nativeHandlesStruct;
+    QRhiDriverInfo driverInfoStruct;
+    quint32 osMajor = 0;
+    quint32 osMinor = 0;
+
+    struct {
+        int maxTextureSize = 4096;
+        bool baseVertexAndInstance = true;
+        QVector<int> supportedSampleCounts;
+        bool isAppleGPU = false;
+        int maxThreadGroupSize = 512;
+    } caps;
+
+    QRhiMetalData *d = nullptr;
 };
 
 QT_END_NAMESPACE
diff --git a/src/gui/rhi/qrhimetal_p_p.h b/src/gui/rhi/qrhimetal_p_p.h
deleted file mode 100644
index ff57e84a..00000000
--- a/src/gui/rhi/qrhimetal_p_p.h
+++ /dev/null
@@ -1,508 +0,0 @@
-// Copyright (C) 2019 The Qt Company Ltd.
-// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
-
-#ifndef QRHIMETAL_P_H
-#define QRHIMETAL_P_H
-
-//
-//  W A R N I N G
-//  -------------
-//
-// This file is not part of the Qt API.  It exists purely as an
-// implementation detail.  This header file may change from version to
-// version without notice, or even be removed.
-//
-// We mean it.
-//
-
-#include "qrhimetal_p.h"
-#include "qrhi_p_p.h"
-#include <QWindow>
-
-QT_BEGIN_NAMESPACE
-
-static const int QMTL_FRAMES_IN_FLIGHT = 2;
-
-// have to hide the ObjC stuff, this header cannot contain MTL* at all
-struct QMetalBufferData;
-
-struct QMetalBuffer : public QRhiBuffer
-{
-    QMetalBuffer(QRhiImplementation *rhi, Type type, UsageFlags usage, quint32 size);
-    ~QMetalBuffer();
-    void destroy() override;
-    bool create() override;
-    QRhiBuffer::NativeBuffer nativeBuffer() override;
-    char *beginFullDynamicBufferUpdateForCurrentFrame() override;
-    void endFullDynamicBufferUpdateForCurrentFrame() override;
-
-    QMetalBufferData *d;
-    uint generation = 0;
-    int lastActiveFrameSlot = -1;
-    friend class QRhiMetal;
-    friend struct QMetalShaderResourceBindings;
-
-    static constexpr int WorkBufPoolUsage = 1 << 8;
-    static_assert(WorkBufPoolUsage > QRhiBuffer::StorageBuffer);
-};
-
-struct QMetalRenderBufferData;
-
-struct QMetalRenderBuffer : public QRhiRenderBuffer
-{
-    QMetalRenderBuffer(QRhiImplementation *rhi, Type type, const QSize &pixelSize,
-                       int sampleCount, QRhiRenderBuffer::Flags flags,
-                       QRhiTexture::Format backingFormatHint);
-    ~QMetalRenderBuffer();
-    void destroy() override;
-    bool create() override;
-    QRhiTexture::Format backingFormat() const override;
-
-    QMetalRenderBufferData *d;
-    int samples = 1;
-    uint generation = 0;
-    int lastActiveFrameSlot = -1;
-    friend class QRhiMetal;
-};
-
-struct QMetalTextureData;
-
-struct QMetalTexture : public QRhiTexture
-{
-    QMetalTexture(QRhiImplementation *rhi, Format format, const QSize &pixelSize, int depth,
-                  int arraySize, int sampleCount, Flags flags);
-    ~QMetalTexture();
-    void destroy() override;
-    bool create() override;
-    bool createFrom(NativeTexture src) override;
-    NativeTexture nativeTexture() override;
-
-    bool prepareCreate(QSize *adjustedSize = nullptr);
-
-    QMetalTextureData *d;
-    int mipLevelCount = 0;
-    int samples = 1;
-    uint generation = 0;
-    int lastActiveFrameSlot = -1;
-    friend class QRhiMetal;
-    friend struct QMetalShaderResourceBindings;
-    friend struct QMetalTextureData;
-};
-
-struct QMetalSamplerData;
-
-struct QMetalSampler : public QRhiSampler
-{
-    QMetalSampler(QRhiImplementation *rhi, Filter magFilter, Filter minFilter, Filter mipmapMode,
-                  AddressMode u, AddressMode v, AddressMode w);
-    ~QMetalSampler();
-    void destroy() override;
-    bool create() override;
-
-    QMetalSamplerData *d;
-    uint generation = 0;
-    int lastActiveFrameSlot = -1;
-    friend class QRhiMetal;
-    friend struct QMetalShaderResourceBindings;
-};
-
-struct QMetalRenderPassDescriptor : public QRhiRenderPassDescriptor
-{
-    QMetalRenderPassDescriptor(QRhiImplementation *rhi);
-    ~QMetalRenderPassDescriptor();
-    void destroy() override;
-    bool isCompatible(const QRhiRenderPassDescriptor *other) const override;
-    QRhiRenderPassDescriptor *newCompatibleRenderPassDescriptor() const override;
-    QVector<quint32> serializedFormat() const override;
-
-    void updateSerializedFormat();
-
-    // there is no MTLRenderPassDescriptor here as one will be created for each pass in beginPass()
-
-    // but the things needed for the render pipeline descriptor have to be provided
-    static const int MAX_COLOR_ATTACHMENTS = 8;
-    int colorAttachmentCount = 0;
-    bool hasDepthStencil = false;
-    int colorFormat[MAX_COLOR_ATTACHMENTS];
-    int dsFormat;
-    QVector<quint32> serializedFormatData;
-};
-
-struct QMetalRenderTargetData;
-
-struct QMetalSwapChainRenderTarget : public QRhiSwapChainRenderTarget
-{
-    QMetalSwapChainRenderTarget(QRhiImplementation *rhi, QRhiSwapChain *swapchain);
-    ~QMetalSwapChainRenderTarget();
-    void destroy() override;
-
-    QSize pixelSize() const override;
-    float devicePixelRatio() const override;
-    int sampleCount() const override;
-
-    QMetalRenderTargetData *d;
-};
-
-struct QMetalTextureRenderTarget : public QRhiTextureRenderTarget
-{
-    QMetalTextureRenderTarget(QRhiImplementation *rhi, const QRhiTextureRenderTargetDescription &desc, Flags flags);
-    ~QMetalTextureRenderTarget();
-    void destroy() override;
-
-    QSize pixelSize() const override;
-    float devicePixelRatio() const override;
-    int sampleCount() const override;
-
-    QRhiRenderPassDescriptor *newCompatibleRenderPassDescriptor() override;
-    bool create() override;
-
-    QMetalRenderTargetData *d;
-    friend class QRhiMetal;
-};
-
-struct QMetalShaderResourceBindings : public QRhiShaderResourceBindings
-{
-    QMetalShaderResourceBindings(QRhiImplementation *rhi);
-    ~QMetalShaderResourceBindings();
-    void destroy() override;
-    bool create() override;
-    void updateResources(UpdateFlags flags) override;
-
-    QVarLengthArray<QRhiShaderResourceBinding, 8> sortedBindings;
-    int maxBinding = -1;
-
-    struct BoundUniformBufferData {
-        quint64 id;
-        uint generation;
-    };
-    struct BoundSampledTextureData {
-        int count;
-        struct {
-            quint64 texId;
-            uint texGeneration;
-            quint64 samplerId;
-            uint samplerGeneration;
-        } d[QRhiShaderResourceBinding::Data::MAX_TEX_SAMPLER_ARRAY_SIZE];
-    };
-    struct BoundStorageImageData {
-        quint64 id;
-        uint generation;
-    };
-    struct BoundStorageBufferData {
-        quint64 id;
-        uint generation;
-    };
-    struct BoundResourceData {
-        union {
-            BoundUniformBufferData ubuf;
-            BoundSampledTextureData stex;
-            BoundStorageImageData simage;
-            BoundStorageBufferData sbuf;
-        };
-    };
-    QVarLengthArray<BoundResourceData, 8> boundResourceData;
-
-    uint generation = 0;
-    friend class QRhiMetal;
-};
-
-struct QMetalGraphicsPipelineData;
-struct QMetalCommandBuffer;
-
-struct QMetalGraphicsPipeline : public QRhiGraphicsPipeline
-{
-    QMetalGraphicsPipeline(QRhiImplementation *rhi);
-    ~QMetalGraphicsPipeline();
-    void destroy() override;
-    bool create() override;
-
-    void makeActiveForCurrentRenderPassEncoder(QMetalCommandBuffer *cbD);
-    void setupAttachmentsInMetalRenderPassDescriptor(void *metalRpDesc, QMetalRenderPassDescriptor *rpD);
-    void setupMetalDepthStencilDescriptor(void *metalDsDesc);
-    void mapStates();
-    bool createVertexFragmentPipeline();
-    bool createTessellationPipelines(const QShader &tessVert, const QShader &tesc, const QShader &tese, const QShader &tessFrag);
-
-    QMetalGraphicsPipelineData *d;
-    uint generation = 0;
-    int lastActiveFrameSlot = -1;
-    friend class QRhiMetal;
-};
-
-struct QMetalComputePipelineData;
-
-struct QMetalComputePipeline : public QRhiComputePipeline
-{
-    QMetalComputePipeline(QRhiImplementation *rhi);
-    ~QMetalComputePipeline();
-    void destroy() override;
-    bool create() override;
-
-    QMetalComputePipelineData *d;
-    uint generation = 0;
-    int lastActiveFrameSlot = -1;
-    friend class QRhiMetal;
-};
-
-struct QMetalCommandBufferData;
-struct QMetalSwapChain;
-
-struct QMetalCommandBuffer : public QRhiCommandBuffer
-{
-    QMetalCommandBuffer(QRhiImplementation *rhi);
-    ~QMetalCommandBuffer();
-    void destroy() override;
-
-    QMetalCommandBufferData *d = nullptr;
-    QRhiMetalCommandBufferNativeHandles nativeHandlesStruct;
-
-    enum PassType {
-        NoPass,
-        RenderPass,
-        ComputePass
-    };
-
-    // per-pass (render or compute command encoder) persistent state
-    PassType recordingPass;
-    QRhiRenderTarget *currentTarget;
-
-    // per-pass (render or compute command encoder) volatile (cached) state
-    QMetalGraphicsPipeline *currentGraphicsPipeline;
-    QMetalComputePipeline *currentComputePipeline;
-    uint currentPipelineGeneration;
-    QMetalShaderResourceBindings *currentGraphicsSrb;
-    QMetalShaderResourceBindings *currentComputeSrb;
-    uint currentSrbGeneration;
-    int currentResSlot;
-    QMetalBuffer *currentIndexBuffer;
-    quint32 currentIndexOffset;
-    QRhiCommandBuffer::IndexFormat currentIndexFormat;
-    int currentCullMode;
-    int currentTriangleFillMode;
-    int currentFrontFaceWinding;
-    QPair<float, float> currentDepthBiasValues;
-
-    const QRhiNativeHandles *nativeHandles();
-    void resetState();
-    void resetPerPassState();
-    void resetPerPassCachedState();
-};
-
-struct QMetalSwapChainData;
-
-struct QMetalSwapChain : public QRhiSwapChain
-{
-    QMetalSwapChain(QRhiImplementation *rhi);
-    ~QMetalSwapChain();
-    void destroy() override;
-
-    QRhiCommandBuffer *currentFrameCommandBuffer() override;
-    QRhiRenderTarget *currentFrameRenderTarget() override;
-    QSize surfacePixelSize() override;
-    bool isFormatSupported(Format f) override;
-
-    QRhiRenderPassDescriptor *newCompatibleRenderPassDescriptor() override;
-
-    bool createOrResize() override;
-
-    virtual QRhiSwapChainHdrInfo hdrInfo() override;
-
-    void chooseFormats();
-
-    QWindow *window = nullptr;
-    QSize pixelSize;
-    int currentFrameSlot = 0; // 0..QMTL_FRAMES_IN_FLIGHT-1
-    int frameCount = 0;
-    int samples = 1;
-    QMetalSwapChainRenderTarget rtWrapper;
-    QMetalCommandBuffer cbWrapper;
-    QMetalRenderBuffer *ds = nullptr;
-    QMetalSwapChainData *d = nullptr;
-};
-
-struct QRhiMetalData;
-
-class QRhiMetal : public QRhiImplementation
-{
-public:
-    QRhiMetal(QRhiMetalInitParams *params, QRhiMetalNativeHandles *importDevice = nullptr);
-    ~QRhiMetal();
-
-    static bool probe(QRhiMetalInitParams *params);
-    static QRhiSwapChainProxyData updateSwapChainProxyData(QWindow *window);
-
-    bool create(QRhi::Flags flags) override;
-    void destroy() override;
-
-    QRhiGraphicsPipeline *createGraphicsPipeline() override;
-    QRhiComputePipeline *createComputePipeline() override;
-    QRhiShaderResourceBindings *createShaderResourceBindings() override;
-    QRhiBuffer *createBuffer(QRhiBuffer::Type type,
-                             QRhiBuffer::UsageFlags usage,
-                             quint32 size) override;
-    QRhiRenderBuffer *createRenderBuffer(QRhiRenderBuffer::Type type,
-                                         const QSize &pixelSize,
-                                         int sampleCount,
-                                         QRhiRenderBuffer::Flags flags,
-                                         QRhiTexture::Format backingFormatHint) override;
-    QRhiTexture *createTexture(QRhiTexture::Format format,
-                               const QSize &pixelSize,
-                               int depth,
-                               int arraySize,
-                               int sampleCount,
-                               QRhiTexture::Flags flags) override;
-    QRhiSampler *createSampler(QRhiSampler::Filter magFilter,
-                               QRhiSampler::Filter minFilter,
-                               QRhiSampler::Filter mipmapMode,
-                               QRhiSampler:: AddressMode u,
-                               QRhiSampler::AddressMode v,
-                               QRhiSampler::AddressMode w) override;
-
-    QRhiTextureRenderTarget *createTextureRenderTarget(const QRhiTextureRenderTargetDescription &desc,
-                                                       QRhiTextureRenderTarget::Flags flags) override;
-
-    QRhiSwapChain *createSwapChain() override;
-    QRhi::FrameOpResult beginFrame(QRhiSwapChain *swapChain, QRhi::BeginFrameFlags flags) override;
-    QRhi::FrameOpResult endFrame(QRhiSwapChain *swapChain, QRhi::EndFrameFlags flags) override;
-    QRhi::FrameOpResult beginOffscreenFrame(QRhiCommandBuffer **cb, QRhi::BeginFrameFlags flags) override;
-    QRhi::FrameOpResult endOffscreenFrame(QRhi::EndFrameFlags flags) override;
-    QRhi::FrameOpResult finish() override;
-
-    void resourceUpdate(QRhiCommandBuffer *cb, QRhiResourceUpdateBatch *resourceUpdates) override;
-
-    void beginPass(QRhiCommandBuffer *cb,
-                   QRhiRenderTarget *rt,
-                   const QColor &colorClearValue,
-                   const QRhiDepthStencilClearValue &depthStencilClearValue,
-                   QRhiResourceUpdateBatch *resourceUpdates,
-                   QRhiCommandBuffer::BeginPassFlags flags) override;
-    void endPass(QRhiCommandBuffer *cb, QRhiResourceUpdateBatch *resourceUpdates) override;
-
-    void setGraphicsPipeline(QRhiCommandBuffer *cb,
-                             QRhiGraphicsPipeline *ps) override;
-
-    void setShaderResources(QRhiCommandBuffer *cb,
-                            QRhiShaderResourceBindings *srb,
-                            int dynamicOffsetCount,
-                            const QRhiCommandBuffer::DynamicOffset *dynamicOffsets) override;
-
-    void setVertexInput(QRhiCommandBuffer *cb,
-                        int startBinding, int bindingCount, const QRhiCommandBuffer::VertexInput *bindings,
-                        QRhiBuffer *indexBuf, quint32 indexOffset,
-                        QRhiCommandBuffer::IndexFormat indexFormat) override;
-
-    void setViewport(QRhiCommandBuffer *cb, const QRhiViewport &viewport) override;
-    void setScissor(QRhiCommandBuffer *cb, const QRhiScissor &scissor) override;
-    void setBlendConstants(QRhiCommandBuffer *cb, const QColor &c) override;
-    void setStencilRef(QRhiCommandBuffer *cb, quint32 refValue) override;
-
-    void draw(QRhiCommandBuffer *cb, quint32 vertexCount,
-              quint32 instanceCount, quint32 firstVertex, quint32 firstInstance) override;
-
-    void drawIndexed(QRhiCommandBuffer *cb, quint32 indexCount,
-                     quint32 instanceCount, quint32 firstIndex,
-                     qint32 vertexOffset, quint32 firstInstance) override;
-
-    void debugMarkBegin(QRhiCommandBuffer *cb, const QByteArray &name) override;
-    void debugMarkEnd(QRhiCommandBuffer *cb) override;
-    void debugMarkMsg(QRhiCommandBuffer *cb, const QByteArray &msg) override;
-
-    void beginComputePass(QRhiCommandBuffer *cb,
-                          QRhiResourceUpdateBatch *resourceUpdates,
-                          QRhiCommandBuffer::BeginPassFlags flags) override;
-    void endComputePass(QRhiCommandBuffer *cb, QRhiResourceUpdateBatch *resourceUpdates) override;
-    void setComputePipeline(QRhiCommandBuffer *cb, QRhiComputePipeline *ps) override;
-    void dispatch(QRhiCommandBuffer *cb, int x, int y, int z) override;
-
-    const QRhiNativeHandles *nativeHandles(QRhiCommandBuffer *cb) override;
-    void beginExternal(QRhiCommandBuffer *cb) override;
-    void endExternal(QRhiCommandBuffer *cb) override;
-
-    QList<int> supportedSampleCounts() const override;
-    int ubufAlignment() const override;
-    bool isYUpInFramebuffer() const override;
-    bool isYUpInNDC() const override;
-    bool isClipDepthZeroToOne() const override;
-    QMatrix4x4 clipSpaceCorrMatrix() const override;
-    bool isTextureFormatSupported(QRhiTexture::Format format, QRhiTexture::Flags flags) const override;
-    bool isFeatureSupported(QRhi::Feature feature) const override;
-    int resourceLimit(QRhi::ResourceLimit limit) const override;
-    const QRhiNativeHandles *nativeHandles() override;
-    QRhiDriverInfo driverInfo() const override;
-    QRhiStats statistics() override;
-    bool makeThreadLocalNativeContextCurrent() override;
-    void releaseCachedResources() override;
-    bool isDeviceLost() const override;
-
-    QByteArray pipelineCacheData() override;
-    void setPipelineCacheData(const QByteArray &data) override;
-
-    void executeDeferredReleases(bool forced = false);
-    void finishActiveReadbacks(bool forced = false);
-    qsizetype subresUploadByteSize(const QRhiTextureSubresourceUploadDescription &subresDesc) const;
-    void enqueueSubresUpload(QMetalTexture *texD, void *mp, void *blitEncPtr,
-                             int layer, int level, const QRhiTextureSubresourceUploadDescription &subresDesc,
-                             qsizetype *curOfs);
-    void enqueueResourceUpdates(QRhiCommandBuffer *cb, QRhiResourceUpdateBatch *resourceUpdates);
-    void executeBufferHostWritesForSlot(QMetalBuffer *bufD, int slot);
-    void executeBufferHostWritesForCurrentFrame(QMetalBuffer *bufD);
-    static const int SUPPORTED_STAGES = 5;
-    void enqueueShaderResourceBindings(QMetalShaderResourceBindings *srbD,
-                                       QMetalCommandBuffer *cbD,
-                                       int dynamicOffsetCount,
-                                       const QRhiCommandBuffer::DynamicOffset *dynamicOffsets,
-                                       bool offsetOnlyChange,
-                                       const QShader::NativeResourceBindingMap *nativeResourceBindingMaps[SUPPORTED_STAGES]);
-    int effectiveSampleCount(int sampleCount) const;
-    struct TessDrawArgs {
-        QMetalCommandBuffer *cbD;
-        enum {
-            NonIndexed,
-            U16Indexed,
-            U32Indexed
-        } type;
-        struct NonIndexedArgs {
-            quint32 vertexCount;
-            quint32 instanceCount;
-            quint32 firstVertex;
-            quint32 firstInstance;
-        };
-        struct IndexedArgs {
-            quint32 indexCount;
-            quint32 instanceCount;
-            quint32 firstIndex;
-            qint32 vertexOffset;
-            quint32 firstInstance;
-            void *indexBuffer;
-        };
-        union {
-            NonIndexedArgs draw;
-            IndexedArgs drawIndexed;
-        };
-    };
-    void tessellatedDraw(const TessDrawArgs &args);
-
-    QRhi::Flags rhiFlags;
-    bool importedDevice = false;
-    bool importedCmdQueue = false;
-    QMetalSwapChain *currentSwapChain = nullptr;
-    QSet<QMetalSwapChain *> swapchains;
-    QRhiMetalNativeHandles nativeHandlesStruct;
-    QRhiDriverInfo driverInfoStruct;
-    quint32 osMajor = 0;
-    quint32 osMinor = 0;
-
-    struct {
-        int maxTextureSize = 4096;
-        bool baseVertexAndInstance = true;
-        QVector<int> supportedSampleCounts;
-        bool isAppleGPU = false;
-        int maxThreadGroupSize = 512;
-    } caps;
-
-    QRhiMetalData *d = nullptr;
-};
-
-QT_END_NAMESPACE
-
-#endif
diff --git a/src/gui/rhi/qrhinull.cpp b/src/gui/rhi/qrhinull.cpp
index 04f64aa1..566b922c 100644
--- a/src/gui/rhi/qrhinull.cpp
+++ b/src/gui/rhi/qrhinull.cpp
@@ -1,7 +1,7 @@
-// Copyright (C) 2019 The Qt Company Ltd.
+// Copyright (C) 2023 The Qt Company Ltd.
 // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
 
-#include "qrhinull_p_p.h"
+#include "qrhinull_p.h"
 #include <qmath.h>
 #include <QPainter>
 
@@ -9,10 +9,13 @@ QT_BEGIN_NAMESPACE
 
 /*!
     \class QRhiNullInitParams
-    \internal
     \inmodule QtGui
+    \since 6.6
     \brief Null backend specific initialization parameters.
 
+    \note This is a RHI API with limited compatibility guarantees, see \l QRhi
+    for details.
+
     A Null QRhi needs no special parameters for initialization.
 
     \badcode
@@ -28,9 +31,12 @@ QT_BEGIN_NAMESPACE
 
 /*!
     \class QRhiNullNativeHandles
-    \internal
     \inmodule QtGui
+    \since 6.6
     \brief Empty.
+
+    \note This is a RHI API with limited compatibility guarantees, see \l QRhi
+    for details.
  */
 
 QRhiNull::QRhiNull(QRhiNullInitParams *params)
@@ -344,6 +350,12 @@ void QRhiNull::endExternal(QRhiCommandBuffer *cb)
     Q_UNUSED(cb);
 }
 
+double QRhiNull::lastCompletedGpuTime(QRhiCommandBuffer *cb)
+{
+    Q_UNUSED(cb);
+    return 0;
+}
+
 QRhi::FrameOpResult QRhiNull::beginFrame(QRhiSwapChain *swapChain, QRhi::BeginFrameFlags flags)
 {
     Q_UNUSED(flags);
@@ -456,7 +468,7 @@ void QRhiNull::resourceUpdate(QRhiCommandBuffer *cb, QRhiResourceUpdateBatch *re
             QNullBuffer *bufD = QRHI_RES(QNullBuffer, u.buf);
             memcpy(bufD->data + u.offset, u.data.constData(), size_t(u.data.size()));
         } else if (u.type == QRhiResourceUpdateBatchPrivate::BufferOp::Read) {
-            QRhiBufferReadbackResult *result = u.result;
+            QRhiReadbackResult *result = u.result;
             result->data.resize(u.readSize);
             QNullBuffer *bufD = QRHI_RES(QNullBuffer, u.buf);
             memcpy(result->data.data(), bufD->data + u.offset, size_t(u.readSize));
@@ -664,10 +676,11 @@ bool QNullTexture::create()
     const bool is1D = m_flags.testFlags(OneDimensional);
     QSize size = is1D ? QSize(qMax(1, m_pixelSize.width()), 1)
                       : (m_pixelSize.isEmpty() ? QSize(1, 1) : m_pixelSize);
-    m_depth = qMax(1, m_depth);
     const int mipLevelCount = hasMipMaps ? rhiD->q->mipLevelsForSize(size) : 1;
-    m_arraySize = qMax(0, m_arraySize);
-    const int layerCount = is3D ? m_depth : (isCube ? 6 : (isArray ? m_arraySize : 1));
+    const int layerCount = is3D ? qMax(1, m_depth)
+                                : (isCube ? 6
+                                          : (isArray ? qMax(0, m_arraySize)
+                                                     : 1));
 
     if (m_format == RGBA8) {
         image.resize(layerCount);
diff --git a/src/gui/rhi/qrhinull_p.h b/src/gui/rhi/qrhinull_p.h
index 061b6eba..fc266b4f 100644
--- a/src/gui/rhi/qrhinull_p.h
+++ b/src/gui/rhi/qrhinull_p.h
@@ -1,8 +1,8 @@
-// Copyright (C) 2019 The Qt Company Ltd.
+// Copyright (C) 2023 The Qt Company Ltd.
 // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
 
-#ifndef QRHINULL_H
-#define QRHINULL_H
+#ifndef QRHINULL_P_H
+#define QRHINULL_P_H
 
 //
 //  W A R N I N G
@@ -15,16 +15,279 @@
 // We mean it.
 //
 
-#include <private/qrhi_p.h>
+#include "qrhi_p.h"
 
 QT_BEGIN_NAMESPACE
 
-struct Q_GUI_EXPORT QRhiNullInitParams : public QRhiInitParams
+struct QNullBuffer : public QRhiBuffer
 {
+    QNullBuffer(QRhiImplementation *rhi, Type type, UsageFlags usage, quint32 size);
+    ~QNullBuffer();
+    void destroy() override;
+    bool create() override;
+    char *beginFullDynamicBufferUpdateForCurrentFrame() override;
+
+    char *data = nullptr;
 };
 
-struct Q_GUI_EXPORT QRhiNullNativeHandles : public QRhiNativeHandles
+struct QNullRenderBuffer : public QRhiRenderBuffer
 {
+    QNullRenderBuffer(QRhiImplementation *rhi, Type type, const QSize &pixelSize,
+                      int sampleCount, QRhiRenderBuffer::Flags flags,
+                      QRhiTexture::Format backingFormatHint);
+    ~QNullRenderBuffer();
+    void destroy() override;
+    bool create() override;
+    QRhiTexture::Format backingFormat() const override;
+
+    bool valid = false;
+    uint generation = 0;
+};
+
+struct QNullTexture : public QRhiTexture
+{
+    QNullTexture(QRhiImplementation *rhi, Format format, const QSize &pixelSize, int depth,
+                 int arraySize, int sampleCount, Flags flags);
+    ~QNullTexture();
+    void destroy() override;
+    bool create() override;
+    bool createFrom(NativeTexture src) override;
+
+    bool valid = false;
+    QVarLengthArray<std::array<QImage, QRhi::MAX_MIP_LEVELS>, 6> image;
+    uint generation = 0;
+};
+
+struct QNullSampler : public QRhiSampler
+{
+    QNullSampler(QRhiImplementation *rhi, Filter magFilter, Filter minFilter, Filter mipmapMode,
+                 AddressMode u, AddressMode v, AddressMode w);
+    ~QNullSampler();
+    void destroy() override;
+    bool create() override;
+};
+
+struct QNullRenderPassDescriptor : public QRhiRenderPassDescriptor
+{
+    QNullRenderPassDescriptor(QRhiImplementation *rhi);
+    ~QNullRenderPassDescriptor();
+    void destroy() override;
+    bool isCompatible(const QRhiRenderPassDescriptor *other) const override;
+    QRhiRenderPassDescriptor *newCompatibleRenderPassDescriptor() const override;
+    QVector<quint32> serializedFormat() const override;
+};
+
+struct QNullRenderTargetData
+{
+    QNullRenderTargetData(QRhiImplementation *) { }
+
+    QNullRenderPassDescriptor *rp = nullptr;
+    QSize pixelSize;
+    float dpr = 1;
+    QRhiRenderTargetAttachmentTracker::ResIdList currentResIdList;
+};
+
+struct QNullSwapChainRenderTarget : public QRhiSwapChainRenderTarget
+{
+    QNullSwapChainRenderTarget(QRhiImplementation *rhi, QRhiSwapChain *swapchain);
+    ~QNullSwapChainRenderTarget();
+    void destroy() override;
+
+    QSize pixelSize() const override;
+    float devicePixelRatio() const override;
+    int sampleCount() const override;
+
+    QNullRenderTargetData d;
+};
+
+struct QNullTextureRenderTarget : public QRhiTextureRenderTarget
+{
+    QNullTextureRenderTarget(QRhiImplementation *rhi, const QRhiTextureRenderTargetDescription &desc, Flags flags);
+    ~QNullTextureRenderTarget();
+    void destroy() override;
+
+    QSize pixelSize() const override;
+    float devicePixelRatio() const override;
+    int sampleCount() const override;
+
+    QRhiRenderPassDescriptor *newCompatibleRenderPassDescriptor() override;
+    bool create() override;
+
+    QNullRenderTargetData d;
+};
+
+struct QNullShaderResourceBindings : public QRhiShaderResourceBindings
+{
+    QNullShaderResourceBindings(QRhiImplementation *rhi);
+    ~QNullShaderResourceBindings();
+    void destroy() override;
+    bool create() override;
+    void updateResources(UpdateFlags flags) override;
+};
+
+struct QNullGraphicsPipeline : public QRhiGraphicsPipeline
+{
+    QNullGraphicsPipeline(QRhiImplementation *rhi);
+    ~QNullGraphicsPipeline();
+    void destroy() override;
+    bool create() override;
+};
+
+struct QNullComputePipeline : public QRhiComputePipeline
+{
+    QNullComputePipeline(QRhiImplementation *rhi);
+    ~QNullComputePipeline();
+    void destroy() override;
+    bool create() override;
+};
+
+struct QNullCommandBuffer : public QRhiCommandBuffer
+{
+    QNullCommandBuffer(QRhiImplementation *rhi);
+    ~QNullCommandBuffer();
+    void destroy() override;
+};
+
+struct QNullSwapChain : public QRhiSwapChain
+{
+    QNullSwapChain(QRhiImplementation *rhi);
+    ~QNullSwapChain();
+    void destroy() override;
+
+    QRhiCommandBuffer *currentFrameCommandBuffer() override;
+    QRhiRenderTarget *currentFrameRenderTarget() override;
+
+    QSize surfacePixelSize() override;
+    bool isFormatSupported(Format f) override;
+
+    QRhiRenderPassDescriptor *newCompatibleRenderPassDescriptor() override;
+    bool createOrResize() override;
+
+    QWindow *window = nullptr;
+    QNullSwapChainRenderTarget rt;
+    QNullCommandBuffer cb;
+    int frameCount = 0;
+};
+
+class QRhiNull : public QRhiImplementation
+{
+public:
+    QRhiNull(QRhiNullInitParams *params);
+
+    bool create(QRhi::Flags flags) override;
+    void destroy() override;
+
+    QRhiGraphicsPipeline *createGraphicsPipeline() override;
+    QRhiComputePipeline *createComputePipeline() override;
+    QRhiShaderResourceBindings *createShaderResourceBindings() override;
+    QRhiBuffer *createBuffer(QRhiBuffer::Type type,
+                             QRhiBuffer::UsageFlags usage,
+                             quint32 size) override;
+    QRhiRenderBuffer *createRenderBuffer(QRhiRenderBuffer::Type type,
+                                         const QSize &pixelSize,
+                                         int sampleCount,
+                                         QRhiRenderBuffer::Flags flags,
+                                         QRhiTexture::Format backingFormatHint) override;
+    QRhiTexture *createTexture(QRhiTexture::Format format,
+                               const QSize &pixelSize,
+                               int depth,
+                               int arraySize,
+                               int sampleCount,
+                               QRhiTexture::Flags flags) override;
+    QRhiSampler *createSampler(QRhiSampler::Filter magFilter,
+                               QRhiSampler::Filter minFilter,
+                               QRhiSampler::Filter mipmapMode,
+                               QRhiSampler:: AddressMode u,
+                               QRhiSampler::AddressMode v,
+                               QRhiSampler::AddressMode w) override;
+
+    QRhiTextureRenderTarget *createTextureRenderTarget(const QRhiTextureRenderTargetDescription &desc,
+                                                       QRhiTextureRenderTarget::Flags flags) override;
+
+    QRhiSwapChain *createSwapChain() override;
+    QRhi::FrameOpResult beginFrame(QRhiSwapChain *swapChain, QRhi::BeginFrameFlags flags) override;
+    QRhi::FrameOpResult endFrame(QRhiSwapChain *swapChain, QRhi::EndFrameFlags flags) override;
+    QRhi::FrameOpResult beginOffscreenFrame(QRhiCommandBuffer **cb, QRhi::BeginFrameFlags flags) override;
+    QRhi::FrameOpResult endOffscreenFrame(QRhi::EndFrameFlags flags) override;
+    QRhi::FrameOpResult finish() override;
+
+    void resourceUpdate(QRhiCommandBuffer *cb, QRhiResourceUpdateBatch *resourceUpdates) override;
+
+    void beginPass(QRhiCommandBuffer *cb,
+                   QRhiRenderTarget *rt,
+                   const QColor &colorClearValue,
+                   const QRhiDepthStencilClearValue &depthStencilClearValue,
+                   QRhiResourceUpdateBatch *resourceUpdates,
+                   QRhiCommandBuffer::BeginPassFlags flags) override;
+    void endPass(QRhiCommandBuffer *cb, QRhiResourceUpdateBatch *resourceUpdates) override;
+
+    void setGraphicsPipeline(QRhiCommandBuffer *cb,
+                             QRhiGraphicsPipeline *ps) override;
+
+    void setShaderResources(QRhiCommandBuffer *cb,
+                            QRhiShaderResourceBindings *srb,
+                            int dynamicOffsetCount,
+                            const QRhiCommandBuffer::DynamicOffset *dynamicOffsets) override;
+
+    void setVertexInput(QRhiCommandBuffer *cb,
+                        int startBinding, int bindingCount, const QRhiCommandBuffer::VertexInput *bindings,
+                        QRhiBuffer *indexBuf, quint32 indexOffset,
+                        QRhiCommandBuffer::IndexFormat indexFormat) override;
+
+    void setViewport(QRhiCommandBuffer *cb, const QRhiViewport &viewport) override;
+    void setScissor(QRhiCommandBuffer *cb, const QRhiScissor &scissor) override;
+    void setBlendConstants(QRhiCommandBuffer *cb, const QColor &c) override;
+    void setStencilRef(QRhiCommandBuffer *cb, quint32 refValue) override;
+
+    void draw(QRhiCommandBuffer *cb, quint32 vertexCount,
+              quint32 instanceCount, quint32 firstVertex, quint32 firstInstance) override;
+
+    void drawIndexed(QRhiCommandBuffer *cb, quint32 indexCount,
+                     quint32 instanceCount, quint32 firstIndex,
+                     qint32 vertexOffset, quint32 firstInstance) override;
+
+    void debugMarkBegin(QRhiCommandBuffer *cb, const QByteArray &name) override;
+    void debugMarkEnd(QRhiCommandBuffer *cb) override;
+    void debugMarkMsg(QRhiCommandBuffer *cb, const QByteArray &msg) override;
+
+    void beginComputePass(QRhiCommandBuffer *cb,
+                          QRhiResourceUpdateBatch *resourceUpdates,
+                          QRhiCommandBuffer::BeginPassFlags flags) override;
+    void endComputePass(QRhiCommandBuffer *cb, QRhiResourceUpdateBatch *resourceUpdates) override;
+    void setComputePipeline(QRhiCommandBuffer *cb, QRhiComputePipeline *ps) override;
+    void dispatch(QRhiCommandBuffer *cb, int x, int y, int z) override;
+
+    const QRhiNativeHandles *nativeHandles(QRhiCommandBuffer *cb) override;
+    void beginExternal(QRhiCommandBuffer *cb) override;
+    void endExternal(QRhiCommandBuffer *cb) override;
+    double lastCompletedGpuTime(QRhiCommandBuffer *cb) override;
+
+    QList<int> supportedSampleCounts() const override;
+    int ubufAlignment() const override;
+    bool isYUpInFramebuffer() const override;
+    bool isYUpInNDC() const override;
+    bool isClipDepthZeroToOne() const override;
+    QMatrix4x4 clipSpaceCorrMatrix() const override;
+    bool isTextureFormatSupported(QRhiTexture::Format format, QRhiTexture::Flags flags) const override;
+    bool isFeatureSupported(QRhi::Feature feature) const override;
+    int resourceLimit(QRhi::ResourceLimit limit) const override;
+    const QRhiNativeHandles *nativeHandles() override;
+    QRhiDriverInfo driverInfo() const override;
+    QRhiStats statistics() override;
+    bool makeThreadLocalNativeContextCurrent() override;
+    void releaseCachedResources() override;
+    bool isDeviceLost() const override;
+
+    QByteArray pipelineCacheData() override;
+    void setPipelineCacheData(const QByteArray &data) override;
+
+    void simulateTextureUpload(const QRhiResourceUpdateBatchPrivate::TextureOp &u);
+    void simulateTextureCopy(const QRhiResourceUpdateBatchPrivate::TextureOp &u);
+    void simulateTextureGenMips(const QRhiResourceUpdateBatchPrivate::TextureOp &u);
+
+    QRhiNullNativeHandles nativeHandlesStruct;
+    QRhiSwapChain *currentSwapChain = nullptr;
+    QNullCommandBuffer offscreenCommandBuffer;
 };
 
 QT_END_NAMESPACE
diff --git a/src/gui/rhi/qrhinull_p_p.h b/src/gui/rhi/qrhinull_p_p.h
deleted file mode 100644
index 2ace5a36..00000000
--- a/src/gui/rhi/qrhinull_p_p.h
+++ /dev/null
@@ -1,295 +0,0 @@
-// Copyright (C) 2019 The Qt Company Ltd.
-// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
-
-#ifndef QRHINULL_P_H
-#define QRHINULL_P_H
-
-//
-//  W A R N I N G
-//  -------------
-//
-// This file is not part of the Qt API.  It exists purely as an
-// implementation detail.  This header file may change from version to
-// version without notice, or even be removed.
-//
-// We mean it.
-//
-
-#include "qrhinull_p.h"
-#include "qrhi_p_p.h"
-
-QT_BEGIN_NAMESPACE
-
-struct QNullBuffer : public QRhiBuffer
-{
-    QNullBuffer(QRhiImplementation *rhi, Type type, UsageFlags usage, quint32 size);
-    ~QNullBuffer();
-    void destroy() override;
-    bool create() override;
-    char *beginFullDynamicBufferUpdateForCurrentFrame() override;
-
-    char *data = nullptr;
-};
-
-struct QNullRenderBuffer : public QRhiRenderBuffer
-{
-    QNullRenderBuffer(QRhiImplementation *rhi, Type type, const QSize &pixelSize,
-                      int sampleCount, QRhiRenderBuffer::Flags flags,
-                      QRhiTexture::Format backingFormatHint);
-    ~QNullRenderBuffer();
-    void destroy() override;
-    bool create() override;
-    QRhiTexture::Format backingFormat() const override;
-
-    bool valid = false;
-    uint generation = 0;
-};
-
-struct QNullTexture : public QRhiTexture
-{
-    QNullTexture(QRhiImplementation *rhi, Format format, const QSize &pixelSize, int depth,
-                 int arraySize, int sampleCount, Flags flags);
-    ~QNullTexture();
-    void destroy() override;
-    bool create() override;
-    bool createFrom(NativeTexture src) override;
-
-    bool valid = false;
-    QVarLengthArray<std::array<QImage, QRhi::MAX_MIP_LEVELS>, 6> image;
-    uint generation = 0;
-};
-
-struct QNullSampler : public QRhiSampler
-{
-    QNullSampler(QRhiImplementation *rhi, Filter magFilter, Filter minFilter, Filter mipmapMode,
-                 AddressMode u, AddressMode v, AddressMode w);
-    ~QNullSampler();
-    void destroy() override;
-    bool create() override;
-};
-
-struct QNullRenderPassDescriptor : public QRhiRenderPassDescriptor
-{
-    QNullRenderPassDescriptor(QRhiImplementation *rhi);
-    ~QNullRenderPassDescriptor();
-    void destroy() override;
-    bool isCompatible(const QRhiRenderPassDescriptor *other) const override;
-    QRhiRenderPassDescriptor *newCompatibleRenderPassDescriptor() const override;
-    QVector<quint32> serializedFormat() const override;
-};
-
-struct QNullRenderTargetData
-{
-    QNullRenderTargetData(QRhiImplementation *) { }
-
-    QNullRenderPassDescriptor *rp = nullptr;
-    QSize pixelSize;
-    float dpr = 1;
-    QRhiRenderTargetAttachmentTracker::ResIdList currentResIdList;
-};
-
-struct QNullSwapChainRenderTarget : public QRhiSwapChainRenderTarget
-{
-    QNullSwapChainRenderTarget(QRhiImplementation *rhi, QRhiSwapChain *swapchain);
-    ~QNullSwapChainRenderTarget();
-    void destroy() override;
-
-    QSize pixelSize() const override;
-    float devicePixelRatio() const override;
-    int sampleCount() const override;
-
-    QNullRenderTargetData d;
-};
-
-struct QNullTextureRenderTarget : public QRhiTextureRenderTarget
-{
-    QNullTextureRenderTarget(QRhiImplementation *rhi, const QRhiTextureRenderTargetDescription &desc, Flags flags);
-    ~QNullTextureRenderTarget();
-    void destroy() override;
-
-    QSize pixelSize() const override;
-    float devicePixelRatio() const override;
-    int sampleCount() const override;
-
-    QRhiRenderPassDescriptor *newCompatibleRenderPassDescriptor() override;
-    bool create() override;
-
-    QNullRenderTargetData d;
-};
-
-struct QNullShaderResourceBindings : public QRhiShaderResourceBindings
-{
-    QNullShaderResourceBindings(QRhiImplementation *rhi);
-    ~QNullShaderResourceBindings();
-    void destroy() override;
-    bool create() override;
-    void updateResources(UpdateFlags flags) override;
-};
-
-struct QNullGraphicsPipeline : public QRhiGraphicsPipeline
-{
-    QNullGraphicsPipeline(QRhiImplementation *rhi);
-    ~QNullGraphicsPipeline();
-    void destroy() override;
-    bool create() override;
-};
-
-struct QNullComputePipeline : public QRhiComputePipeline
-{
-    QNullComputePipeline(QRhiImplementation *rhi);
-    ~QNullComputePipeline();
-    void destroy() override;
-    bool create() override;
-};
-
-struct QNullCommandBuffer : public QRhiCommandBuffer
-{
-    QNullCommandBuffer(QRhiImplementation *rhi);
-    ~QNullCommandBuffer();
-    void destroy() override;
-};
-
-struct QNullSwapChain : public QRhiSwapChain
-{
-    QNullSwapChain(QRhiImplementation *rhi);
-    ~QNullSwapChain();
-    void destroy() override;
-
-    QRhiCommandBuffer *currentFrameCommandBuffer() override;
-    QRhiRenderTarget *currentFrameRenderTarget() override;
-
-    QSize surfacePixelSize() override;
-    bool isFormatSupported(Format f) override;
-
-    QRhiRenderPassDescriptor *newCompatibleRenderPassDescriptor() override;
-    bool createOrResize() override;
-
-    QWindow *window = nullptr;
-    QNullSwapChainRenderTarget rt;
-    QNullCommandBuffer cb;
-    int frameCount = 0;
-};
-
-class QRhiNull : public QRhiImplementation
-{
-public:
-    QRhiNull(QRhiNullInitParams *params);
-
-    bool create(QRhi::Flags flags) override;
-    void destroy() override;
-
-    QRhiGraphicsPipeline *createGraphicsPipeline() override;
-    QRhiComputePipeline *createComputePipeline() override;
-    QRhiShaderResourceBindings *createShaderResourceBindings() override;
-    QRhiBuffer *createBuffer(QRhiBuffer::Type type,
-                             QRhiBuffer::UsageFlags usage,
-                             quint32 size) override;
-    QRhiRenderBuffer *createRenderBuffer(QRhiRenderBuffer::Type type,
-                                         const QSize &pixelSize,
-                                         int sampleCount,
-                                         QRhiRenderBuffer::Flags flags,
-                                         QRhiTexture::Format backingFormatHint) override;
-    QRhiTexture *createTexture(QRhiTexture::Format format,
-                               const QSize &pixelSize,
-                               int depth,
-                               int arraySize,
-                               int sampleCount,
-                               QRhiTexture::Flags flags) override;
-    QRhiSampler *createSampler(QRhiSampler::Filter magFilter,
-                               QRhiSampler::Filter minFilter,
-                               QRhiSampler::Filter mipmapMode,
-                               QRhiSampler:: AddressMode u,
-                               QRhiSampler::AddressMode v,
-                               QRhiSampler::AddressMode w) override;
-
-    QRhiTextureRenderTarget *createTextureRenderTarget(const QRhiTextureRenderTargetDescription &desc,
-                                                       QRhiTextureRenderTarget::Flags flags) override;
-
-    QRhiSwapChain *createSwapChain() override;
-    QRhi::FrameOpResult beginFrame(QRhiSwapChain *swapChain, QRhi::BeginFrameFlags flags) override;
-    QRhi::FrameOpResult endFrame(QRhiSwapChain *swapChain, QRhi::EndFrameFlags flags) override;
-    QRhi::FrameOpResult beginOffscreenFrame(QRhiCommandBuffer **cb, QRhi::BeginFrameFlags flags) override;
-    QRhi::FrameOpResult endOffscreenFrame(QRhi::EndFrameFlags flags) override;
-    QRhi::FrameOpResult finish() override;
-
-    void resourceUpdate(QRhiCommandBuffer *cb, QRhiResourceUpdateBatch *resourceUpdates) override;
-
-    void beginPass(QRhiCommandBuffer *cb,
-                   QRhiRenderTarget *rt,
-                   const QColor &colorClearValue,
-                   const QRhiDepthStencilClearValue &depthStencilClearValue,
-                   QRhiResourceUpdateBatch *resourceUpdates,
-                   QRhiCommandBuffer::BeginPassFlags flags) override;
-    void endPass(QRhiCommandBuffer *cb, QRhiResourceUpdateBatch *resourceUpdates) override;
-
-    void setGraphicsPipeline(QRhiCommandBuffer *cb,
-                             QRhiGraphicsPipeline *ps) override;
-
-    void setShaderResources(QRhiCommandBuffer *cb,
-                            QRhiShaderResourceBindings *srb,
-                            int dynamicOffsetCount,
-                            const QRhiCommandBuffer::DynamicOffset *dynamicOffsets) override;
-
-    void setVertexInput(QRhiCommandBuffer *cb,
-                        int startBinding, int bindingCount, const QRhiCommandBuffer::VertexInput *bindings,
-                        QRhiBuffer *indexBuf, quint32 indexOffset,
-                        QRhiCommandBuffer::IndexFormat indexFormat) override;
-
-    void setViewport(QRhiCommandBuffer *cb, const QRhiViewport &viewport) override;
-    void setScissor(QRhiCommandBuffer *cb, const QRhiScissor &scissor) override;
-    void setBlendConstants(QRhiCommandBuffer *cb, const QColor &c) override;
-    void setStencilRef(QRhiCommandBuffer *cb, quint32 refValue) override;
-
-    void draw(QRhiCommandBuffer *cb, quint32 vertexCount,
-              quint32 instanceCount, quint32 firstVertex, quint32 firstInstance) override;
-
-    void drawIndexed(QRhiCommandBuffer *cb, quint32 indexCount,
-                     quint32 instanceCount, quint32 firstIndex,
-                     qint32 vertexOffset, quint32 firstInstance) override;
-
-    void debugMarkBegin(QRhiCommandBuffer *cb, const QByteArray &name) override;
-    void debugMarkEnd(QRhiCommandBuffer *cb) override;
-    void debugMarkMsg(QRhiCommandBuffer *cb, const QByteArray &msg) override;
-
-    void beginComputePass(QRhiCommandBuffer *cb,
-                          QRhiResourceUpdateBatch *resourceUpdates,
-                          QRhiCommandBuffer::BeginPassFlags flags) override;
-    void endComputePass(QRhiCommandBuffer *cb, QRhiResourceUpdateBatch *resourceUpdates) override;
-    void setComputePipeline(QRhiCommandBuffer *cb, QRhiComputePipeline *ps) override;
-    void dispatch(QRhiCommandBuffer *cb, int x, int y, int z) override;
-
-    const QRhiNativeHandles *nativeHandles(QRhiCommandBuffer *cb) override;
-    void beginExternal(QRhiCommandBuffer *cb) override;
-    void endExternal(QRhiCommandBuffer *cb) override;
-
-    QList<int> supportedSampleCounts() const override;
-    int ubufAlignment() const override;
-    bool isYUpInFramebuffer() const override;
-    bool isYUpInNDC() const override;
-    bool isClipDepthZeroToOne() const override;
-    QMatrix4x4 clipSpaceCorrMatrix() const override;
-    bool isTextureFormatSupported(QRhiTexture::Format format, QRhiTexture::Flags flags) const override;
-    bool isFeatureSupported(QRhi::Feature feature) const override;
-    int resourceLimit(QRhi::ResourceLimit limit) const override;
-    const QRhiNativeHandles *nativeHandles() override;
-    QRhiDriverInfo driverInfo() const override;
-    QRhiStats statistics() override;
-    bool makeThreadLocalNativeContextCurrent() override;
-    void releaseCachedResources() override;
-    bool isDeviceLost() const override;
-
-    QByteArray pipelineCacheData() override;
-    void setPipelineCacheData(const QByteArray &data) override;
-
-    void simulateTextureUpload(const QRhiResourceUpdateBatchPrivate::TextureOp &u);
-    void simulateTextureCopy(const QRhiResourceUpdateBatchPrivate::TextureOp &u);
-    void simulateTextureGenMips(const QRhiResourceUpdateBatchPrivate::TextureOp &u);
-
-    QRhiNullNativeHandles nativeHandlesStruct;
-    QRhiSwapChain *currentSwapChain = nullptr;
-    QNullCommandBuffer offscreenCommandBuffer;
-};
-
-QT_END_NAMESPACE
-
-#endif
diff --git a/src/gui/rhi/qrhivulkan.cpp b/src/gui/rhi/qrhivulkan.cpp
index db6206e4..108b93b2 100644
--- a/src/gui/rhi/qrhivulkan.cpp
+++ b/src/gui/rhi/qrhivulkan.cpp
@@ -1,8 +1,8 @@
-// Copyright (C) 2019 The Qt Company Ltd.
+// Copyright (C) 2023 The Qt Company Ltd.
 // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
 
-#include "qrhivulkan_p_p.h"
-#include "qrhivulkanext_p.h"
+#include "qrhivulkan_p.h"
+#include <qpa/qplatformvulkaninstance.h>
 
 #define VMA_IMPLEMENTATION
 #define VMA_DYNAMIC_VULKAN_FUNCTIONS 1
@@ -59,10 +59,13 @@ QT_BEGIN_NAMESPACE
 
 /*!
     \class QRhiVulkanInitParams
-    \internal
     \inmodule QtGui
+    \since 6.6
     \brief Vulkan specific initialization parameters.
 
+    \note This is a RHI API with limited compatibility guarantees, see \l QRhi
+    for details.
+
     A Vulkan-based QRhi needs at minimum a valid QVulkanInstance. It is up to
     the user to ensure this is available and initialized. This is typically
     done in main() similarly to the following:
@@ -164,35 +167,122 @@ QT_BEGIN_NAMESPACE
     available.
  */
 
+/*!
+    \variable QRhiVulkanInitParams::inst
+
+    The QVulkanInstance that has already been successfully
+    \l{QVulkanInstance::create()}{created}, required.
+*/
+
+/*!
+    \variable QRhiVulkanInitParams::window
+
+    Optional, but recommended when targeting a QWindow.
+*/
+
+/*!
+    \variable QRhiVulkanInitParams::deviceExtensions
+
+    Optional, empty by default. The list of Vulkan device extensions to enable.
+    Unsupported extensions are ignored gracefully.
+*/
+
 /*!
     \class QRhiVulkanNativeHandles
-    \internal
     \inmodule QtGui
+    \since 6.6
     \brief Collects device, queue, and other Vulkan objects that are used by the QRhi.
 
     \note Ownership of the Vulkan objects is never transferred.
+
+    \note This is a RHI API with limited compatibility guarantees, see \l QRhi
+    for details.
  */
 
+/*!
+    \variable QRhiVulkanNativeHandles::physDev
+
+    When different from \nullptr, specifies the Vulkan physical device to use.
+*/
+
+/*!
+    \variable QRhiVulkanNativeHandles::dev
+
+    When wanting to import not just a physical device, but also use an already
+    existing VkDevice, set this and the graphics queue index and family index.
+*/
+
+/*!
+    \variable QRhiVulkanNativeHandles::gfxQueueFamilyIdx
+
+    Graphics queue family index.
+*/
+
+/*!
+    \variable QRhiVulkanNativeHandles::gfxQueueIdx
+
+    Graphics queue index.
+*/
+
+/*!
+    \variable QRhiVulkanNativeHandles::vmemAllocator
+
+    Relevant only when importing an existing memory allocator object,
+    leave it set to \nullptr otherwise.
+*/
+
+/*!
+    \variable QRhiVulkanNativeHandles::gfxQueue
+
+    Output only, not used by QRhi::create(), only set by the
+    QRhi::nativeHandles() accessor. The graphics VkQueue used by the QRhi.
+*/
+
+/*!
+    \variable QRhiVulkanNativeHandles::inst
+
+    Output only, not used by QRhi::create(), only set by the
+    QRhi::nativeHandles() accessor. The QVulkanInstance used by the QRhi.
+*/
+
 /*!
     \class QRhiVulkanCommandBufferNativeHandles
-    \internal
     \inmodule QtGui
+    \since 6.6
     \brief Holds the Vulkan command buffer object that is backing a QRhiCommandBuffer.
 
     \note The Vulkan command buffer object is only guaranteed to be valid, and
     in recording state, while recording a frame. That is, between a
     \l{QRhi::beginFrame()}{beginFrame()} - \l{QRhi::endFrame()}{endFrame()} or
     \l{QRhi::beginOffscreenFrame()}{beginOffscreenFrame()} -
-    \l{QRhi::endOffsrceenFrame()}{endOffscreenFrame()} pair.
+    \l{QRhi::endOffscreenFrame()}{endOffscreenFrame()} pair.
+
+    \note This is a RHI API with limited compatibility guarantees, see \l QRhi
+    for details.
  */
 
+/*!
+    \variable QRhiVulkanCommandBufferNativeHandles::commandBuffer
+
+    The VkCommandBuffer object.
+*/
+
 /*!
     \class QRhiVulkanRenderPassNativeHandles
-    \internal
     \inmodule QtGui
+    \since 6.6
     \brief Holds the Vulkan render pass object backing a QRhiRenderPassDescriptor.
+
+    \note This is a RHI API with limited compatibility guarantees, see \l QRhi
+    for details.
  */
 
+/*!
+    \variable QRhiVulkanRenderPassNativeHandles::renderPass
+
+    The VkRenderPass object.
+*/
+
 template <class Int>
 inline Int aligned(Int v, Int byteAlign)
 {
@@ -221,6 +311,13 @@ static inline VmaAllocator toVmaAllocator(QVkAllocator a)
     return reinterpret_cast<VmaAllocator>(a);
 }
 
+/*!
+    \return the list of instance extensions that are expected to be enabled on
+    the QVulkanInstance that is used for the Vulkan-based QRhi.
+
+    The returned list can be safely passed to QVulkanInstance::setExtensions()
+    as-is, because unsupported extensions are filtered out automatically.
+ */
 QByteArrayList QRhiVulkanInitParams::preferredInstanceExtensions()
 {
     return {
@@ -228,6 +325,11 @@ QByteArrayList QRhiVulkanInitParams::preferredInstanceExtensions()
     };
 }
 
+/*!
+    \return the list of device extensions that are expected to be enabled on the
+    \c VkDevice when creating a Vulkan-based QRhi with an externally created
+    \c VkDevice object.
+ */
 QByteArrayList QRhiVulkanInitParams::preferredExtensionsForImportedDevice()
 {
     return {
@@ -427,7 +529,31 @@ bool QRhiVulkan::create(QRhi::Flags flags)
     driverInfoStruct.vendorId = physDevProperties.vendorID;
     driverInfoStruct.deviceType = toRhiDeviceType(physDevProperties.deviceType);
 
-    f->vkGetPhysicalDeviceFeatures(physDev, &physDevFeatures);
+#ifdef VK_VERSION_1_2 // Vulkan11Features is only in Vulkan 1.2
+    VkPhysicalDeviceFeatures2 physDevFeaturesChainable = {};
+    physDevFeaturesChainable.sType = VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_FEATURES_2;
+    physDevFeatures11 = {};
+    physDevFeatures11.sType = VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_VULKAN_1_1_FEATURES;
+    physDevFeatures12 = {};
+    physDevFeatures12.sType = VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_VULKAN_1_2_FEATURES;
+#ifdef VK_VERSION_1_3
+    physDevFeatures13 = {};
+    physDevFeatures13.sType = VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_VULKAN_1_3_FEATURES;
+#endif
+    if (caps.apiVersion >= QVersionNumber(1, 2)) {
+        physDevFeaturesChainable.pNext = &physDevFeatures11;
+        physDevFeatures11.pNext = &physDevFeatures12;
+#ifdef VK_VERSION_1_3
+        if (caps.apiVersion >= QVersionNumber(1, 3))
+            physDevFeatures12.pNext = &physDevFeatures13;
+#endif
+        f->vkGetPhysicalDeviceFeatures2(physDev, &physDevFeaturesChainable);
+        memcpy(&physDevFeatures, &physDevFeaturesChainable.features, sizeof(VkPhysicalDeviceFeatures));
+    } else
+#endif // VK_VERSION_1_2
+    {
+        f->vkGetPhysicalDeviceFeatures(physDev, &physDevFeatures);
+    }
 
     // Choose queue and create device, unless the device was specified in importParams.
     if (!importedDevice) {
@@ -500,12 +626,14 @@ bool QRhiVulkan::create(QRhi::Flags flags)
         }
 
         caps.vertexAttribDivisor = false;
+#ifdef VK_EXT_vertex_attribute_divisor
         if (devExts.contains(VK_EXT_VERTEX_ATTRIBUTE_DIVISOR_EXTENSION_NAME)) {
             if (hasPhysDevProp2) {
                 requestedDevExts.append(VK_EXT_VERTEX_ATTRIBUTE_DIVISOR_EXTENSION_NAME);
                 caps.vertexAttribDivisor = true;
             }
         }
+#endif
 
         for (const QByteArray &ext : requestedDeviceExtensions) {
             if (!ext.isEmpty() && !requestedDevExts.contains(ext)) {
@@ -558,42 +686,18 @@ bool QRhiVulkan::create(QRhi::Flags flags)
         // tessellationShader, geometryShader
         // textureCompressionETC2, textureCompressionASTC_LDR, textureCompressionBC
 
-#ifdef VK_VERSION_1_2 // Vulkan11Features is only in Vulkan 1.2
-        VkPhysicalDeviceFeatures2 physDevFeatures2 = {};
-        physDevFeatures2.sType = VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_FEATURES_2;
-
-        VkPhysicalDeviceVulkan11Features features11 = {};
-        features11.sType = VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_VULKAN_1_1_FEATURES;
-        VkPhysicalDeviceVulkan12Features features12 = {};
-        features12.sType = VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_VULKAN_1_2_FEATURES;
-#ifdef VK_VERSION_1_3
-        VkPhysicalDeviceVulkan13Features features13 = {};
-        features13.sType = VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_VULKAN_1_3_FEATURES;
-#endif
-
+#ifdef VK_VERSION_1_2
         if (caps.apiVersion >= QVersionNumber(1, 2)) {
-            physDevFeatures2.pNext = &features11;
-            features11.pNext = &features12;
+            physDevFeaturesChainable.features.robustBufferAccess = VK_FALSE;
 #ifdef VK_VERSION_1_3
-            if (caps.apiVersion >= QVersionNumber(1, 3))
-                features12.pNext = &features13;
+            physDevFeatures13.robustImageAccess = VK_FALSE;
 #endif
-            f->vkGetPhysicalDeviceFeatures2(physDev, &physDevFeatures2);
-
-            physDevFeatures2.features.robustBufferAccess = VK_FALSE;
-#ifdef VK_VERSION_1_3
-            features13.robustImageAccess = VK_FALSE;
-#endif
-
-            devInfo.pNext = &physDevFeatures2;
-        }
+            devInfo.pNext = &physDevFeaturesChainable;
+        } else
 #endif // VK_VERSION_1_2
-
-        VkPhysicalDeviceFeatures features;
-        if (!devInfo.pNext) {
-            memcpy(&features, &physDevFeatures, sizeof(features));
-            features.robustBufferAccess = VK_FALSE;
-            devInfo.pEnabledFeatures = &features;
+        {
+            physDevFeatures.robustBufferAccess = VK_FALSE;
+            devInfo.pEnabledFeatures = &physDevFeatures;
         }
 
         VkResult err = f->vkCreateDevice(physDev, &devInfo, nullptr, &dev);
@@ -720,6 +824,7 @@ bool QRhiVulkan::create(QRhi::Flags flags)
     nativeHandlesStruct.gfxQueueIdx = gfxQueueIdx;
     nativeHandlesStruct.gfxQueue = gfxQueue;
     nativeHandlesStruct.vmemAllocator = allocator;
+    nativeHandlesStruct.inst = inst;
 
     return true;
 }
@@ -1668,12 +1773,32 @@ void QRhiVulkan::ensureCommandPoolForNewFrame()
     df->vkResetCommandPool(dev, cmdPool[currentFrameSlot], flags);
 }
 
+double QRhiVulkan::elapsedSecondsFromTimestamp(quint64 timestamp[2], bool *ok)
+{
+    quint64 mask = 0;
+    for (quint64 i = 0; i < timestampValidBits; i += 8)
+        mask |= 0xFFULL << i;
+    const quint64 ts0 = timestamp[0] & mask;
+    const quint64 ts1 = timestamp[1] & mask;
+    const float nsecsPerTick = physDevProperties.limits.timestampPeriod;
+    if (!qFuzzyIsNull(nsecsPerTick)) {
+        const float elapsedMs = float(ts1 - ts0) * nsecsPerTick / 1000000.0f;
+        const double elapsedSec = elapsedMs / 1000.0;
+        *ok = true;
+        return elapsedSec;
+    }
+    *ok = false;
+    return 0;
+}
+
 QRhi::FrameOpResult QRhiVulkan::beginFrame(QRhiSwapChain *swapChain, QRhi::BeginFrameFlags)
 {
     QVkSwapChain *swapChainD = QRHI_RES(QVkSwapChain, swapChain);
     const int frameResIndex = swapChainD->bufferCount > 1 ? swapChainD->currentFrameSlot : 0;
     QVkSwapChain::FrameResources &frame(swapChainD->frameRes[frameResIndex]);
 
+    inst->handle()->beginFrame(swapChainD->window);
+
     if (!frame.imageAcquired) {
         // Wait if we are too far ahead, i.e. the thread gets throttled based on the presentation rate
         // (note that we are using FIFO mode -> vsync)
@@ -1717,30 +1842,6 @@ QRhi::FrameOpResult QRhiVulkan::beginFrame(QRhiSwapChain *swapChain, QRhi::Begin
     // mess up A's in-flight commands (as they are not in flight anymore).
     waitCommandCompletion(frameResIndex);
 
-    // Now is the time to read the timestamps for the previous frame for this slot.
-    if (frame.timestampQueryIndex >= 0) {
-        quint64 timestamp[2] = { 0, 0 };
-        VkResult err = df->vkGetQueryPoolResults(dev, timestampQueryPool, uint32_t(frame.timestampQueryIndex), 2,
-                                                 2 * sizeof(quint64), timestamp, sizeof(quint64),
-                                                 VK_QUERY_RESULT_64_BIT | VK_QUERY_RESULT_WAIT_BIT);
-        timestampQueryPoolMap.clearBit(frame.timestampQueryIndex / 2);
-        frame.timestampQueryIndex = -1;
-        if (err == VK_SUCCESS) {
-            quint64 mask = 0;
-            for (quint64 i = 0; i < timestampValidBits; i += 8)
-                mask |= 0xFFULL << i;
-            const quint64 ts0 = timestamp[0] & mask;
-            const quint64 ts1 = timestamp[1] & mask;
-            const float nsecsPerTick = physDevProperties.limits.timestampPeriod;
-            if (!qFuzzyIsNull(nsecsPerTick)) {
-                const float elapsedMs = float(ts1 - ts0) * nsecsPerTick / 1000000.0f;
-                runGpuFrameTimeCallbacks(elapsedMs);
-            }
-        } else {
-            qWarning("Failed to query timestamp: %d", err);
-        }
-    }
-
     currentFrameSlot = int(swapChainD->currentFrameSlot);
     currentSwapChain = swapChainD;
     if (swapChainD->ds)
@@ -1754,9 +1855,34 @@ QRhi::FrameOpResult QRhiVulkan::beginFrame(QRhiSwapChain *swapChain, QRhi::Begin
     if (cbres != QRhi::FrameOpSuccess)
         return cbres;
 
-    // when profiling is enabled, pick a free query (pair) from the pool
-    int timestampQueryIdx = -1;
-    if (hasGpuFrameTimeCallback() && swapChainD->bufferCount > 1) { // no timestamps if not having at least 2 frames in flight
+    swapChainD->cbWrapper.cb = frame.cmdBuf;
+
+    QVkSwapChain::ImageResources &image(swapChainD->imageRes[swapChainD->currentImageIndex]);
+    swapChainD->rtWrapper.d.fb = image.fb;
+
+    prepareNewFrame(&swapChainD->cbWrapper);
+
+    // Read the timestamps for the previous frame for this slot.
+    if (frame.timestampQueryIndex >= 0) {
+        quint64 timestamp[2] = { 0, 0 };
+        VkResult err = df->vkGetQueryPoolResults(dev, timestampQueryPool, uint32_t(frame.timestampQueryIndex), 2,
+                                                 2 * sizeof(quint64), timestamp, sizeof(quint64),
+                                                 VK_QUERY_RESULT_64_BIT | VK_QUERY_RESULT_WAIT_BIT);
+        timestampQueryPoolMap.clearBit(frame.timestampQueryIndex / 2);
+        frame.timestampQueryIndex = -1;
+        if (err == VK_SUCCESS) {
+            bool ok = false;
+            const double elapsedSec = elapsedSecondsFromTimestamp(timestamp, &ok);
+            if (ok)
+                swapChainD->cbWrapper.lastGpuTime = elapsedSec;
+        } else {
+            qWarning("Failed to query timestamp: %d", err);
+        }
+    }
+
+    // No timestamps if the client did not opt in, or when not having at least 2 frames in flight.
+    if (rhiFlags.testFlag(QRhi::EnableTimestamps) && swapChainD->bufferCount > 1) {
+        int timestampQueryIdx = -1;
         for (int i = 0; i < timestampQueryPoolMap.size(); ++i) {
             if (!timestampQueryPoolMap.testBit(i)) {
                 timestampQueryPoolMap.setBit(i);
@@ -1764,21 +1890,14 @@ QRhi::FrameOpResult QRhiVulkan::beginFrame(QRhiSwapChain *swapChain, QRhi::Begin
                 break;
             }
         }
+        if (timestampQueryIdx >= 0) {
+            df->vkCmdResetQueryPool(frame.cmdBuf, timestampQueryPool, uint32_t(timestampQueryIdx), 2);
+            // record timestamp at the start of the command buffer
+            df->vkCmdWriteTimestamp(frame.cmdBuf, VK_PIPELINE_STAGE_TOP_OF_PIPE_BIT,
+                                    timestampQueryPool, uint32_t(timestampQueryIdx));
+            frame.timestampQueryIndex = timestampQueryIdx;
+        }
     }
-    if (timestampQueryIdx >= 0) {
-        df->vkCmdResetQueryPool(frame.cmdBuf, timestampQueryPool, uint32_t(timestampQueryIdx), 2);
-        // record timestamp at the start of the command buffer
-        df->vkCmdWriteTimestamp(frame.cmdBuf, VK_PIPELINE_STAGE_TOP_OF_PIPE_BIT,
-                                timestampQueryPool, uint32_t(timestampQueryIdx));
-        frame.timestampQueryIndex = timestampQueryIdx;
-    }
-
-    swapChainD->cbWrapper.cb = frame.cmdBuf;
-
-    QVkSwapChain::ImageResources &image(swapChainD->imageRes[swapChainD->currentImageIndex]);
-    swapChainD->rtWrapper.d.fb = image.fb;
-
-    prepareNewFrame(&swapChainD->cbWrapper);
 
     return QRhi::FrameOpSuccess;
 }
@@ -1788,6 +1907,10 @@ QRhi::FrameOpResult QRhiVulkan::endFrame(QRhiSwapChain *swapChain, QRhi::EndFram
     QVkSwapChain *swapChainD = QRHI_RES(QVkSwapChain, swapChain);
     Q_ASSERT(currentSwapChain == swapChainD);
 
+    auto cleanup = qScopeGuard([this, swapChainD] {
+        inst->handle()->endFrame(swapChainD->window);
+    });
+
     recordPrimaryCommandBuffer(&swapChainD->cbWrapper);
 
     int frameResIndex = swapChainD->bufferCount > 1 ? swapChainD->currentFrameSlot : 0;
@@ -2028,6 +2151,24 @@ QRhi::FrameOpResult QRhiVulkan::beginOffscreenFrame(QRhiCommandBuffer **cb, QRhi
     prepareNewFrame(cbWrapper);
     ofr.active = true;
 
+    if (rhiFlags.testFlag(QRhi::EnableTimestamps)) {
+        int timestampQueryIdx = -1;
+        for (int i = 0; i < timestampQueryPoolMap.size(); ++i) {
+            if (!timestampQueryPoolMap.testBit(i)) {
+                timestampQueryPoolMap.setBit(i);
+                timestampQueryIdx = i * 2;
+                break;
+            }
+        }
+        if (timestampQueryIdx >= 0) {
+            df->vkCmdResetQueryPool(cbWrapper->cb, timestampQueryPool, uint32_t(timestampQueryIdx), 2);
+            // record timestamp at the start of the command buffer
+            df->vkCmdWriteTimestamp(cbWrapper->cb, VK_PIPELINE_STAGE_TOP_OF_PIPE_BIT,
+                                    timestampQueryPool, uint32_t(timestampQueryIdx));
+            ofr.timestampQueryIndex = timestampQueryIdx;
+        }
+    }
+
     *cb = cbWrapper;
     return QRhi::FrameOpSuccess;
 }
@@ -2041,6 +2182,12 @@ QRhi::FrameOpResult QRhiVulkan::endOffscreenFrame(QRhi::EndFrameFlags flags)
     QVkCommandBuffer *cbWrapper(ofr.cbWrapper[currentFrameSlot]);
     recordPrimaryCommandBuffer(cbWrapper);
 
+    // record another timestamp, when enabled
+    if (ofr.timestampQueryIndex >= 0) {
+        df->vkCmdWriteTimestamp(cbWrapper->cb, VK_PIPELINE_STAGE_BOTTOM_OF_PIPE_BIT,
+                                timestampQueryPool, uint32_t(ofr.timestampQueryIndex + 1));
+    }
+
     if (!ofr.cmdFence) {
         VkFenceCreateInfo fenceInfo = {};
         fenceInfo.sType = VK_STRUCTURE_TYPE_FENCE_CREATE_INFO;
@@ -2063,6 +2210,24 @@ QRhi::FrameOpResult QRhiVulkan::endOffscreenFrame(QRhi::EndFrameFlags flags)
     // previous) frame is safe since we waited for completion above.
     finishActiveReadbacks(true);
 
+    // Read the timestamps, if we wrote them.
+    if (ofr.timestampQueryIndex >= 0) {
+        quint64 timestamp[2] = { 0, 0 };
+        VkResult err = df->vkGetQueryPoolResults(dev, timestampQueryPool, uint32_t(ofr.timestampQueryIndex), 2,
+                                                 2 * sizeof(quint64), timestamp, sizeof(quint64),
+                                                 VK_QUERY_RESULT_64_BIT | VK_QUERY_RESULT_WAIT_BIT);
+        timestampQueryPoolMap.clearBit(ofr.timestampQueryIndex / 2);
+        ofr.timestampQueryIndex = -1;
+        if (err == VK_SUCCESS) {
+            bool ok = false;
+            const double elapsedSec = elapsedSecondsFromTimestamp(timestamp, &ok);
+            if (ok)
+                cbWrapper->lastGpuTime = elapsedSec;
+        } else {
+            qWarning("Failed to query timestamp: %d", err);
+        }
+    }
+
     return QRhi::FrameOpSuccess;
 }
 
@@ -2461,7 +2626,7 @@ void QRhiVulkan::dispatch(QRhiCommandBuffer *cb, int x, int y, int z)
         QVkShaderResourceBindings *srbD = QRHI_RES(QVkShaderResourceBindings, cbD->currentComputeSrb);
         const int bindingCount = srbD->m_bindings.size();
         for (int i = 0; i < bindingCount; ++i) {
-            const QRhiShaderResourceBinding::Data *b = srbD->m_bindings.at(i).data();
+            const QRhiShaderResourceBinding::Data *b = shaderResourceBindingData(srbD->m_bindings.at(i));
             switch (b->type) {
             case QRhiShaderResourceBinding::ImageLoad:
             case QRhiShaderResourceBinding::ImageStore:
@@ -2619,7 +2784,7 @@ void QRhiVulkan::updateShaderResourceBindings(QRhiShaderResourceBindings *srb, i
     int frameSlot = updateAll ? 0 : descSetIdx;
     while (frameSlot < (updateAll ? QVK_FRAMES_IN_FLIGHT : descSetIdx + 1)) {
         for (int i = 0, ie = srbD->sortedBindings.size(); i != ie; ++i) {
-            const QRhiShaderResourceBinding::Data *b = srbD->sortedBindings.at(i).data();
+            const QRhiShaderResourceBinding::Data *b = shaderResourceBindingData(srbD->sortedBindings.at(i));
             QVkShaderResourceBindings::BoundResourceData &bd(srbD->boundResourceData[frameSlot][i]);
 
             VkWriteDescriptorSet writeInfo = {};
@@ -3431,10 +3596,10 @@ void QRhiVulkan::enqueueResourceUpdates(QVkCommandBuffer *cbD, QRhiResourceUpdat
             if (!origStage)
                 origStage = VK_PIPELINE_STAGE_TOP_OF_PIPE_BIT;
 
-            for (int layer = 0; layer < (isCube ? 6 : (isArray ? utexD->m_arraySize : 1)); ++layer) {
+            for (int layer = 0; layer < (isCube ? 6 : (isArray ? qMax(0, utexD->m_arraySize) : 1)); ++layer) {
                 int w = utexD->m_pixelSize.width();
                 int h = utexD->m_pixelSize.height();
-                int depth = is3D ? utexD->m_depth : 1;
+                int depth = is3D ? qMax(1, utexD->m_depth) : 1;
                 for (int level = 1; level < int(utexD->mipLevelCount); ++level) {
                     if (level == 1) {
                         subresourceBarrier(cbD, utexD->image,
@@ -4262,6 +4427,12 @@ bool QRhiVulkan::isFeatureSupported(QRhi::Feature feature) const
         return true;
     case QRhi::OneDimensionalTextureMipmaps:
         return true;
+    case QRhi::HalfAttributes:
+        return true;
+    case QRhi::RenderToOneDimensionalTexture:
+        return true;
+    case QRhi::ThreeDimensionalTextureMipmaps:
+        return true;
     default:
         Q_UNREACHABLE_RETURN(false);
     }
@@ -4566,7 +4737,7 @@ void QRhiVulkan::setShaderResources(QRhiCommandBuffer *cb, QRhiShaderResourceBin
     // Do host writes and mark referenced shader resources as in-use.
     // Also prepare to ensure the descriptor set we are going to bind refers to up-to-date Vk objects.
     for (int i = 0, ie = srbD->sortedBindings.size(); i != ie; ++i) {
-        const QRhiShaderResourceBinding::Data *b = srbD->sortedBindings[i].data();
+        const QRhiShaderResourceBinding::Data *b = shaderResourceBindingData(srbD->sortedBindings[i]);
         QVkShaderResourceBindings::BoundResourceData &bd(descSetBd[i]);
         switch (b->type) {
         case QRhiShaderResourceBinding::UniformBuffer:
@@ -4713,7 +4884,7 @@ void QRhiVulkan::setShaderResources(QRhiCommandBuffer *cb, QRhiShaderResourceBin
             // and neither srb nor dynamicOffsets has any such ordering
             // requirement.
             for (const QRhiShaderResourceBinding &binding : std::as_const(srbD->sortedBindings)) {
-                const QRhiShaderResourceBinding::Data *b = binding.data();
+                const QRhiShaderResourceBinding::Data *b = shaderResourceBindingData(binding);
                 if (b->type == QRhiShaderResourceBinding::UniformBuffer && b->u.ubuf.hasDynamicOffset) {
                     uint32_t offset = 0;
                     for (int i = 0; i < dynamicOffsetCount; ++i) {
@@ -5144,6 +5315,12 @@ void QRhiVulkan::endExternal(QRhiCommandBuffer *cb)
     cbD->resetCachedState();
 }
 
+double QRhiVulkan::lastCompletedGpuTime(QRhiCommandBuffer *cb)
+{
+    QVkCommandBuffer *cbD = QRHI_RES(QVkCommandBuffer, cb);
+    return cbD->lastGpuTime;
+}
+
 void QRhiVulkan::setObjectName(uint64_t object, VkObjectType type, const QByteArray &name, int slot)
 {
 #ifdef VK_EXT_debug_utils
@@ -5276,6 +5453,14 @@ static inline VkFormat toVkAttributeFormat(QRhiVertexInputAttribute::Format form
         return VK_FORMAT_R32G32_SINT;
     case QRhiVertexInputAttribute::SInt:
         return VK_FORMAT_R32_SINT;
+    case QRhiVertexInputAttribute::Half4:
+        return VK_FORMAT_R16G16B16A16_SFLOAT;
+    case QRhiVertexInputAttribute::Half3:
+        return VK_FORMAT_R16G16B16_SFLOAT;
+    case QRhiVertexInputAttribute::Half2:
+        return VK_FORMAT_R16G16_SFLOAT;
+    case QRhiVertexInputAttribute::Half:
+        return VK_FORMAT_R16_SFLOAT;
     default:
         Q_UNREACHABLE_RETURN(VK_FORMAT_R32G32B32A32_SFLOAT);
     }
@@ -5925,12 +6110,10 @@ bool QVkTexture::prepareCreate(QSize *adjustedSize)
         qWarning("Texture cannot be both 1D and 3D");
         return false;
     }
-    m_depth = qMax(1, m_depth);
     if (m_depth > 1 && !is3D) {
         qWarning("Texture cannot have a depth of %d when it is not 3D", m_depth);
         return false;
     }
-    m_arraySize = qMax(0, m_arraySize);
     if (m_arraySize > 0 && !isArray) {
         qWarning("Texture cannot have an array size of %d when it is not an array", m_arraySize);
         return false;
@@ -5979,7 +6162,7 @@ bool QVkTexture::finishCreate()
         viewInfo.subresourceRange.baseArrayLayer = uint32_t(m_arrayRangeStart);
         viewInfo.subresourceRange.layerCount = uint32_t(m_arrayRangeLength);
     } else {
-        viewInfo.subresourceRange.layerCount = isCube ? 6 : (isArray ? m_arraySize : 1);
+        viewInfo.subresourceRange.layerCount = isCube ? 6 : (isArray ? qMax(0, m_arraySize) : 1);
     }
 
     VkResult err = rhiD->df->vkCreateImageView(rhiD->dev, &viewInfo, nullptr, &imageView);
@@ -6033,9 +6216,9 @@ bool QVkTexture::create()
     imageInfo.format = vkformat;
     imageInfo.extent.width = uint32_t(size.width());
     imageInfo.extent.height = uint32_t(size.height());
-    imageInfo.extent.depth = is3D ? m_depth : 1;
+    imageInfo.extent.depth = is3D ? qMax(1, m_depth) : 1;
     imageInfo.mipLevels = mipLevelCount;
-    imageInfo.arrayLayers = isCube ? 6 : (isArray ? m_arraySize : 1);
+    imageInfo.arrayLayers = isCube ? 6 : (isArray ? qMax(0, m_arraySize) : 1);
     imageInfo.samples = samples;
     imageInfo.tiling = VK_IMAGE_TILING_OPTIMAL;
     imageInfo.initialLayout = VK_IMAGE_LAYOUT_PREINITIALIZED;
@@ -6136,7 +6319,7 @@ VkImageView QVkTexture::imageViewForLevel(int level)
     viewInfo.subresourceRange.baseMipLevel = uint32_t(level);
     viewInfo.subresourceRange.levelCount = 1;
     viewInfo.subresourceRange.baseArrayLayer = 0;
-    viewInfo.subresourceRange.layerCount = isCube ? 6 : (isArray ? m_arraySize : 1);
+    viewInfo.subresourceRange.layerCount = isCube ? 6 : (isArray ? qMax(0, m_arraySize) : 1);
 
     VkImageView v = VK_NULL_HANDLE;
     QRHI_RES_RHI(QRhiVulkan);
@@ -6490,8 +6673,7 @@ bool QVkTextureRenderTarget::create()
     if (d.fb)
         destroy();
 
-    const bool hasColorAttachments = m_desc.cbeginColorAttachments() != m_desc.cendColorAttachments();
-    Q_ASSERT(hasColorAttachments || m_desc.depthTexture());
+    Q_ASSERT(m_desc.colorAttachmentCount() > 0 || m_desc.depthTexture());
     Q_ASSERT(!m_desc.depthStencilBuffer() || !m_desc.depthTexture());
     const bool hasDepthStencil = m_desc.depthStencilBuffer() || m_desc.depthTexture();
 
@@ -6694,16 +6876,12 @@ bool QVkShaderResourceBindings::create()
 
     sortedBindings.clear();
     std::copy(m_bindings.cbegin(), m_bindings.cend(), std::back_inserter(sortedBindings));
-    std::sort(sortedBindings.begin(), sortedBindings.end(),
-              [](const QRhiShaderResourceBinding &a, const QRhiShaderResourceBinding &b)
-    {
-        return a.data()->binding < b.data()->binding;
-    });
+    std::sort(sortedBindings.begin(), sortedBindings.end(), QRhiImplementation::sortedBindingLessThan);
 
     hasSlottedResource = false;
     hasDynamicOffset = false;
     for (const QRhiShaderResourceBinding &binding : std::as_const(sortedBindings)) {
-        const QRhiShaderResourceBinding::Data *b = binding.data();
+        const QRhiShaderResourceBinding::Data *b = QRhiImplementation::shaderResourceBindingData(binding);
         if (b->type == QRhiShaderResourceBinding::UniformBuffer && b->u.ubuf.buf) {
             if (QRHI_RES(QVkBuffer, b->u.ubuf.buf)->type() == QRhiBuffer::Dynamic)
                 hasSlottedResource = true;
@@ -6714,7 +6892,7 @@ bool QVkShaderResourceBindings::create()
 
     QVarLengthArray<VkDescriptorSetLayoutBinding, 4> vkbindings;
     for (const QRhiShaderResourceBinding &binding : std::as_const(sortedBindings)) {
-        const QRhiShaderResourceBinding::Data *b = binding.data();
+        const QRhiShaderResourceBinding::Data *b = QRhiImplementation::shaderResourceBindingData(binding);
         VkDescriptorSetLayoutBinding vkbinding = {};
         vkbinding.binding = uint32_t(b->binding);
         vkbinding.descriptorType = toVkDescriptorType(b);
@@ -6763,13 +6941,8 @@ void QVkShaderResourceBindings::updateResources(UpdateFlags flags)
 {
     sortedBindings.clear();
     std::copy(m_bindings.cbegin(), m_bindings.cend(), std::back_inserter(sortedBindings));
-    if (!flags.testFlag(BindingsAreSorted)) {
-        std::sort(sortedBindings.begin(), sortedBindings.end(),
-                  [](const QRhiShaderResourceBinding &a, const QRhiShaderResourceBinding &b)
-        {
-            return a.data()->binding < b.data()->binding;
-        });
-    }
+    if (!flags.testFlag(BindingsAreSorted))
+        std::sort(sortedBindings.begin(), sortedBindings.end(), QRhiImplementation::sortedBindingLessThan);
 
     // Reset the state tracking table too - it can deal with assigning a
     // different QRhiBuffer/Texture/Sampler for a binding point, but it cannot
@@ -6873,7 +7046,9 @@ bool QVkGraphicsPipeline::create()
     pipelineInfo.pStages = shaderStageCreateInfos.constData();
 
     QVarLengthArray<VkVertexInputBindingDescription, 4> vertexBindings;
+#ifdef VK_EXT_vertex_attribute_divisor
     QVarLengthArray<VkVertexInputBindingDivisorDescriptionEXT> nonOneStepRates;
+#endif
     int bindingIndex = 0;
     for (auto it = m_vertexInputLayout.cbeginBindings(), itEnd = m_vertexInputLayout.cendBindings();
          it != itEnd; ++it, ++bindingIndex)
@@ -6885,9 +7060,12 @@ bool QVkGraphicsPipeline::create()
                 ? VK_VERTEX_INPUT_RATE_VERTEX : VK_VERTEX_INPUT_RATE_INSTANCE
         };
         if (it->classification() == QRhiVertexInputBinding::PerInstance && it->instanceStepRate() != 1) {
+#ifdef VK_EXT_vertex_attribute_divisor
             if (rhiD->caps.vertexAttribDivisor) {
                 nonOneStepRates.append({ uint32_t(bindingIndex), it->instanceStepRate() });
-            } else {
+            } else
+#endif
+            {
                 qWarning("QRhiVulkan: Instance step rates other than 1 not supported without "
                          "VK_EXT_vertex_attribute_divisor on the device and "
                          "VK_KHR_get_physical_device_properties2 on the instance");
@@ -6913,13 +7091,15 @@ bool QVkGraphicsPipeline::create()
     vertexInputInfo.pVertexBindingDescriptions = vertexBindings.constData();
     vertexInputInfo.vertexAttributeDescriptionCount = uint32_t(vertexAttributes.size());
     vertexInputInfo.pVertexAttributeDescriptions = vertexAttributes.constData();
+#ifdef VK_EXT_vertex_attribute_divisor
     VkPipelineVertexInputDivisorStateCreateInfoEXT divisorInfo = {};
     if (!nonOneStepRates.isEmpty()) {
-        divisorInfo.sType = VkStructureType(1000190001); // VK_STRUCTURE_TYPE_PIPELINE_VERTEX_INPUT_DIVISOR_STATE_CREATE_INFO_EXT
+        divisorInfo.sType = VK_STRUCTURE_TYPE_PIPELINE_VERTEX_INPUT_DIVISOR_STATE_CREATE_INFO_EXT;
         divisorInfo.vertexBindingDivisorCount = uint32_t(nonOneStepRates.size());
         divisorInfo.pVertexBindingDivisors = nonOneStepRates.constData();
         vertexInputInfo.pNext = &divisorInfo;
     }
+#endif
     pipelineInfo.pVertexInputState = &vertexInputInfo;
 
     QVarLengthArray<VkDynamicState, 8> dynEnable;
@@ -7367,11 +7547,9 @@ bool QVkSwapChain::ensureSurface()
     const bool srgbRequested = m_flags.testFlag(sRGB);
     for (int i = 0; i < int(formatCount); ++i) {
         if (formats[i].format != VK_FORMAT_UNDEFINED) {
-            bool ok = false;
-            if (m_format == SDR)
-                ok = srgbRequested == isSrgbFormat(formats[i].format);
-            else
-                ok = hdrFormatMatchesVkSurfaceFormat(m_format, formats[i]);
+            bool ok = srgbRequested == isSrgbFormat(formats[i].format);
+            if (m_format != SDR)
+                ok &= hdrFormatMatchesVkSurfaceFormat(m_format, formats[i]);
             if (ok) {
                 colorFormat = formats[i].format;
                 colorSpace = formats[i].colorSpace;
diff --git a/src/gui/rhi/qrhivulkan_p.h b/src/gui/rhi/qrhivulkan_p.h
index f592cf7e..fa35dcc4 100644
--- a/src/gui/rhi/qrhivulkan_p.h
+++ b/src/gui/rhi/qrhivulkan_p.h
@@ -1,8 +1,8 @@
-// Copyright (C) 2019 The Qt Company Ltd.
+// Copyright (C) 2023 The Qt Company Ltd.
 // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
 
-#ifndef QRHIVULKAN_H
-#define QRHIVULKAN_H
+#ifndef QRHIVULKAN_P_H
+#define QRHIVULKAN_P_H
 
 //
 //  W A R N I N G
@@ -15,43 +15,997 @@
 // We mean it.
 //
 
-#include <private/qrhi_p.h>
-#include <QtGui/qvulkaninstance.h> // this is where vulkan.h gets pulled in
+#include "qrhi_p.h"
 
 QT_BEGIN_NAMESPACE
 
-struct Q_GUI_EXPORT QRhiVulkanInitParams : public QRhiInitParams
-{
-    QVulkanInstance *inst = nullptr;
-    QWindow *window = nullptr;
-    QByteArrayList deviceExtensions;
+class QVulkanFunctions;
+class QVulkanDeviceFunctions;
 
-    static QByteArrayList preferredInstanceExtensions();
-    static QByteArrayList preferredExtensionsForImportedDevice();
+static const int QVK_FRAMES_IN_FLIGHT = 2;
+
+static const int QVK_DESC_SETS_PER_POOL = 128;
+static const int QVK_UNIFORM_BUFFERS_PER_POOL = 256;
+static const int QVK_COMBINED_IMAGE_SAMPLERS_PER_POOL = 256;
+static const int QVK_STORAGE_BUFFERS_PER_POOL = 128;
+static const int QVK_STORAGE_IMAGES_PER_POOL = 128;
+
+static const int QVK_MAX_ACTIVE_TIMESTAMP_PAIRS = 16;
+
+// no vk_mem_alloc.h available here, void* is good enough
+typedef void * QVkAlloc;
+typedef void * QVkAllocator;
+
+struct QVkBuffer : public QRhiBuffer
+{
+    QVkBuffer(QRhiImplementation *rhi, Type type, UsageFlags usage, quint32 size);
+    ~QVkBuffer();
+    void destroy() override;
+    bool create() override;
+    QRhiBuffer::NativeBuffer nativeBuffer() override;
+    char *beginFullDynamicBufferUpdateForCurrentFrame() override;
+    void endFullDynamicBufferUpdateForCurrentFrame() override;
+
+    VkBuffer buffers[QVK_FRAMES_IN_FLIGHT];
+    QVkAlloc allocations[QVK_FRAMES_IN_FLIGHT];
+    struct DynamicUpdate {
+        quint32 offset;
+        QRhiBufferData data;
+    };
+    QVarLengthArray<DynamicUpdate, 16> pendingDynamicUpdates[QVK_FRAMES_IN_FLIGHT];
+    VkBuffer stagingBuffers[QVK_FRAMES_IN_FLIGHT];
+    QVkAlloc stagingAllocations[QVK_FRAMES_IN_FLIGHT];
+    struct UsageState {
+        VkAccessFlags access = 0;
+        VkPipelineStageFlags stage = 0;
+    };
+    UsageState usageState[QVK_FRAMES_IN_FLIGHT];
+    int lastActiveFrameSlot = -1;
+    uint generation = 0;
+    friend class QRhiVulkan;
 };
 
-struct Q_GUI_EXPORT QRhiVulkanNativeHandles : public QRhiNativeHandles
+Q_DECLARE_TYPEINFO(QVkBuffer::DynamicUpdate, Q_RELOCATABLE_TYPE);
+
+struct QVkTexture;
+
+struct QVkRenderBuffer : public QRhiRenderBuffer
 {
-    // to import a physical device (always required)
+    QVkRenderBuffer(QRhiImplementation *rhi, Type type, const QSize &pixelSize,
+                    int sampleCount, Flags flags,
+                    QRhiTexture::Format backingFormatHint);
+    ~QVkRenderBuffer();
+    void destroy() override;
+    bool create() override;
+    QRhiTexture::Format backingFormat() const override;
+
+    VkDeviceMemory memory = VK_NULL_HANDLE;
+    VkImage image = VK_NULL_HANDLE;
+    VkImageView imageView = VK_NULL_HANDLE;
+    VkSampleCountFlagBits samples;
+    QVkTexture *backingTexture = nullptr;
+    VkFormat vkformat;
+    int lastActiveFrameSlot = -1;
+    uint generation = 0;
+    friend class QRhiVulkan;
+};
+
+struct QVkTexture : public QRhiTexture
+{
+    QVkTexture(QRhiImplementation *rhi, Format format, const QSize &pixelSize, int depth,
+               int arraySize, int sampleCount, Flags flags);
+    ~QVkTexture();
+    void destroy() override;
+    bool create() override;
+    bool createFrom(NativeTexture src) override;
+    NativeTexture nativeTexture() override;
+    void setNativeLayout(int layout) override;
+
+    bool prepareCreate(QSize *adjustedSize = nullptr);
+    bool finishCreate();
+    VkImageView imageViewForLevel(int level);
+
+    VkImage image = VK_NULL_HANDLE;
+    VkImageView imageView = VK_NULL_HANDLE;
+    QVkAlloc imageAlloc = nullptr;
+    VkBuffer stagingBuffers[QVK_FRAMES_IN_FLIGHT];
+    QVkAlloc stagingAllocations[QVK_FRAMES_IN_FLIGHT];
+    VkImageView perLevelImageViews[QRhi::MAX_MIP_LEVELS];
+    bool owns = true;
+    struct UsageState {
+        // no tracking of subresource layouts (some operations can keep
+        // subresources in different layouts for some time, but that does not
+        // need to be kept track of)
+        VkImageLayout layout;
+        VkAccessFlags access;
+        VkPipelineStageFlags stage;
+    };
+    UsageState usageState;
+    VkFormat vkformat;
+    uint mipLevelCount = 0;
+    VkSampleCountFlagBits samples;
+    int lastActiveFrameSlot = -1;
+    uint generation = 0;
+    friend class QRhiVulkan;
+};
+
+struct QVkSampler : public QRhiSampler
+{
+    QVkSampler(QRhiImplementation *rhi, Filter magFilter, Filter minFilter, Filter mipmapMode,
+               AddressMode u, AddressMode v, AddressMode w);
+    ~QVkSampler();
+    void destroy() override;
+    bool create() override;
+
+    VkSampler sampler = VK_NULL_HANDLE;
+    int lastActiveFrameSlot = -1;
+    uint generation = 0;
+    friend class QRhiVulkan;
+};
+
+struct QVkRenderPassDescriptor : public QRhiRenderPassDescriptor
+{
+    QVkRenderPassDescriptor(QRhiImplementation *rhi);
+    ~QVkRenderPassDescriptor();
+    void destroy() override;
+    bool isCompatible(const QRhiRenderPassDescriptor *other) const override;
+    QRhiRenderPassDescriptor *newCompatibleRenderPassDescriptor() const override;
+    QVector<quint32> serializedFormat() const override;
+    const QRhiNativeHandles *nativeHandles() override;
+
+    void updateSerializedFormat();
+
+    VkRenderPass rp = VK_NULL_HANDLE;
+    bool ownsRp = false;
+    QVarLengthArray<VkAttachmentDescription, 8> attDescs;
+    QVarLengthArray<VkAttachmentReference, 8> colorRefs;
+    QVarLengthArray<VkAttachmentReference, 8> resolveRefs;
+    QVarLengthArray<VkSubpassDependency, 2> subpassDeps;
+    bool hasDepthStencil = false;
+    VkAttachmentReference dsRef;
+    QVector<quint32> serializedFormatData;
+    QRhiVulkanRenderPassNativeHandles nativeHandlesStruct;
+    int lastActiveFrameSlot = -1;
+};
+
+struct QVkRenderTargetData
+{
+    VkFramebuffer fb = VK_NULL_HANDLE;
+    QVkRenderPassDescriptor *rp = nullptr;
+    QSize pixelSize;
+    float dpr = 1;
+    int sampleCount = 1;
+    int colorAttCount = 0;
+    int dsAttCount = 0;
+    int resolveAttCount = 0;
+    QRhiRenderTargetAttachmentTracker::ResIdList currentResIdList;
+    static const int MAX_COLOR_ATTACHMENTS = 8;
+};
+
+struct QVkSwapChainRenderTarget : public QRhiSwapChainRenderTarget
+{
+    QVkSwapChainRenderTarget(QRhiImplementation *rhi, QRhiSwapChain *swapchain);
+    ~QVkSwapChainRenderTarget();
+    void destroy() override;
+
+    QSize pixelSize() const override;
+    float devicePixelRatio() const override;
+    int sampleCount() const override;
+
+    QVkRenderTargetData d;
+};
+
+struct QVkTextureRenderTarget : public QRhiTextureRenderTarget
+{
+    QVkTextureRenderTarget(QRhiImplementation *rhi, const QRhiTextureRenderTargetDescription &desc, Flags flags);
+    ~QVkTextureRenderTarget();
+    void destroy() override;
+
+    QSize pixelSize() const override;
+    float devicePixelRatio() const override;
+    int sampleCount() const override;
+
+    QRhiRenderPassDescriptor *newCompatibleRenderPassDescriptor() override;
+    bool create() override;
+
+    QVkRenderTargetData d;
+    VkImageView rtv[QVkRenderTargetData::MAX_COLOR_ATTACHMENTS];
+    VkImageView resrtv[QVkRenderTargetData::MAX_COLOR_ATTACHMENTS];
+    int lastActiveFrameSlot = -1;
+    friend class QRhiVulkan;
+};
+
+struct QVkShaderResourceBindings : public QRhiShaderResourceBindings
+{
+    QVkShaderResourceBindings(QRhiImplementation *rhi);
+    ~QVkShaderResourceBindings();
+    void destroy() override;
+    bool create() override;
+    void updateResources(UpdateFlags flags) override;
+
+    QVarLengthArray<QRhiShaderResourceBinding, 8> sortedBindings;
+    bool hasSlottedResource = false;
+    bool hasDynamicOffset = false;
+    int poolIndex = -1;
+    VkDescriptorSetLayout layout = VK_NULL_HANDLE;
+    VkDescriptorSet descSets[QVK_FRAMES_IN_FLIGHT]; // multiple sets to support dynamic buffers
+    int lastActiveFrameSlot = -1;
+    uint generation = 0;
+
+    // Keep track of the generation number of each referenced QRhi* to be able
+    // to detect that the underlying descriptor set became out of date and they
+    // need to be written again with the up-to-date VkBuffer etc. objects.
+    struct BoundUniformBufferData {
+        quint64 id;
+        uint generation;
+    };
+    struct BoundSampledTextureData {
+        int count;
+        struct {
+            quint64 texId;
+            uint texGeneration;
+            quint64 samplerId;
+            uint samplerGeneration;
+        } d[QRhiShaderResourceBinding::Data::MAX_TEX_SAMPLER_ARRAY_SIZE];
+    };
+    struct BoundStorageImageData {
+        quint64 id;
+        uint generation;
+    };
+    struct BoundStorageBufferData {
+        quint64 id;
+        uint generation;
+    };
+    struct BoundResourceData {
+        union {
+            BoundUniformBufferData ubuf;
+            BoundSampledTextureData stex;
+            BoundStorageImageData simage;
+            BoundStorageBufferData sbuf;
+        };
+    };
+    QVarLengthArray<BoundResourceData, 8> boundResourceData[QVK_FRAMES_IN_FLIGHT];
+
+    friend class QRhiVulkan;
+};
+
+Q_DECLARE_TYPEINFO(QVkShaderResourceBindings::BoundResourceData, Q_RELOCATABLE_TYPE);
+
+struct QVkGraphicsPipeline : public QRhiGraphicsPipeline
+{
+    QVkGraphicsPipeline(QRhiImplementation *rhi);
+    ~QVkGraphicsPipeline();
+    void destroy() override;
+    bool create() override;
+
+    VkPipelineLayout layout = VK_NULL_HANDLE;
+    VkPipeline pipeline = VK_NULL_HANDLE;
+    int lastActiveFrameSlot = -1;
+    uint generation = 0;
+    friend class QRhiVulkan;
+};
+
+struct QVkComputePipeline : public QRhiComputePipeline
+{
+    QVkComputePipeline(QRhiImplementation *rhi);
+    ~QVkComputePipeline();
+    void destroy() override;
+    bool create() override;
+
+    VkPipelineLayout layout = VK_NULL_HANDLE;
+    VkPipeline pipeline = VK_NULL_HANDLE;
+    int lastActiveFrameSlot = -1;
+    uint generation = 0;
+    friend class QRhiVulkan;
+};
+
+struct QVkCommandBuffer : public QRhiCommandBuffer
+{
+    QVkCommandBuffer(QRhiImplementation *rhi);
+    ~QVkCommandBuffer();
+    void destroy() override;
+
+    const QRhiNativeHandles *nativeHandles();
+
+    VkCommandBuffer cb = VK_NULL_HANDLE; // primary
+    QRhiVulkanCommandBufferNativeHandles nativeHandlesStruct;
+
+    enum PassType {
+        NoPass,
+        RenderPass,
+        ComputePass
+    };
+
+    void resetState() {
+        recordingPass = NoPass;
+        passUsesSecondaryCb = false;
+        lastGpuTime = 0;
+        currentTarget = nullptr;
+        activeSecondaryCbStack.clear();
+        resetCommands();
+        resetCachedState();
+    }
+
+    void resetCachedState() {
+        currentGraphicsPipeline = nullptr;
+        currentComputePipeline = nullptr;
+        currentPipelineGeneration = 0;
+        currentGraphicsSrb = nullptr;
+        currentComputeSrb = nullptr;
+        currentSrbGeneration = 0;
+        currentDescSetSlot = -1;
+        currentIndexBuffer = VK_NULL_HANDLE;
+        currentIndexOffset = 0;
+        currentIndexFormat = VK_INDEX_TYPE_UINT16;
+        memset(currentVertexBuffers, 0, sizeof(currentVertexBuffers));
+        memset(currentVertexOffsets, 0, sizeof(currentVertexOffsets));
+        inExternal = false;
+    }
+
+    PassType recordingPass;
+    bool passUsesSecondaryCb;
+    double lastGpuTime = 0;
+    QRhiRenderTarget *currentTarget;
+    QRhiGraphicsPipeline *currentGraphicsPipeline;
+    QRhiComputePipeline *currentComputePipeline;
+    uint currentPipelineGeneration;
+    QRhiShaderResourceBindings *currentGraphicsSrb;
+    QRhiShaderResourceBindings *currentComputeSrb;
+    uint currentSrbGeneration;
+    int currentDescSetSlot;
+    VkBuffer currentIndexBuffer;
+    quint32 currentIndexOffset;
+    VkIndexType currentIndexFormat;
+    static const int VERTEX_INPUT_RESOURCE_SLOT_COUNT = 32;
+    VkBuffer currentVertexBuffers[VERTEX_INPUT_RESOURCE_SLOT_COUNT];
+    quint32 currentVertexOffsets[VERTEX_INPUT_RESOURCE_SLOT_COUNT];
+    QVarLengthArray<VkCommandBuffer, 4> activeSecondaryCbStack;
+    bool inExternal;
+
+    struct {
+        QHash<QRhiResource *, QPair<VkAccessFlags, bool> > writtenResources;
+        void reset() {
+            writtenResources.clear();
+        }
+    } computePassState;
+
+    struct Command {
+        enum Cmd {
+            CopyBuffer,
+            CopyBufferToImage,
+            CopyImage,
+            CopyImageToBuffer,
+            ImageBarrier,
+            BufferBarrier,
+            BlitImage,
+            BeginRenderPass,
+            EndRenderPass,
+            BindPipeline,
+            BindDescriptorSet,
+            BindVertexBuffer,
+            BindIndexBuffer,
+            SetViewport,
+            SetScissor,
+            SetBlendConstants,
+            SetStencilRef,
+            Draw,
+            DrawIndexed,
+            DebugMarkerBegin,
+            DebugMarkerEnd,
+            DebugMarkerInsert,
+            TransitionPassResources,
+            Dispatch,
+            ExecuteSecondary
+        };
+        Cmd cmd;
+
+        union Args {
+            struct {
+                VkBuffer src;
+                VkBuffer dst;
+                VkBufferCopy desc;
+            } copyBuffer;
+            struct {
+                VkBuffer src;
+                VkImage dst;
+                VkImageLayout dstLayout;
+                int count;
+                int bufferImageCopyIndex;
+            } copyBufferToImage;
+            struct {
+                VkImage src;
+                VkImageLayout srcLayout;
+                VkImage dst;
+                VkImageLayout dstLayout;
+                VkImageCopy desc;
+            } copyImage;
+            struct {
+                VkImage src;
+                VkImageLayout srcLayout;
+                VkBuffer dst;
+                VkBufferImageCopy desc;
+            } copyImageToBuffer;
+            struct {
+                VkPipelineStageFlags srcStageMask;
+                VkPipelineStageFlags dstStageMask;
+                int count;
+                int index;
+            } imageBarrier;
+            struct {
+                VkPipelineStageFlags srcStageMask;
+                VkPipelineStageFlags dstStageMask;
+                int count;
+                int index;
+            } bufferBarrier;
+            struct {
+                VkImage src;
+                VkImageLayout srcLayout;
+                VkImage dst;
+                VkImageLayout dstLayout;
+                VkFilter filter;
+                VkImageBlit desc;
+            } blitImage;
+            struct {
+                VkRenderPassBeginInfo desc;
+                int clearValueIndex;
+                bool useSecondaryCb;
+            } beginRenderPass;
+            struct {
+            } endRenderPass;
+            struct {
+                VkPipelineBindPoint bindPoint;
+                VkPipeline pipeline;
+            } bindPipeline;
+            struct {
+                VkPipelineBindPoint bindPoint;
+                VkPipelineLayout pipelineLayout;
+                VkDescriptorSet descSet;
+                int dynamicOffsetCount;
+                int dynamicOffsetIndex;
+            } bindDescriptorSet;
+            struct {
+                int startBinding;
+                int count;
+                int vertexBufferIndex;
+                int vertexBufferOffsetIndex;
+            } bindVertexBuffer;
+            struct {
+                VkBuffer buf;
+                VkDeviceSize ofs;
+                VkIndexType type;
+            } bindIndexBuffer;
+            struct {
+                VkViewport viewport;
+            } setViewport;
+            struct {
+                VkRect2D scissor;
+            } setScissor;
+            struct {
+                float c[4];
+            } setBlendConstants;
+            struct {
+                uint32_t ref;
+            } setStencilRef;
+            struct {
+                uint32_t vertexCount;
+                uint32_t instanceCount;
+                uint32_t firstVertex;
+                uint32_t firstInstance;
+            } draw;
+            struct {
+                uint32_t indexCount;
+                uint32_t instanceCount;
+                uint32_t firstIndex;
+                int32_t vertexOffset;
+                uint32_t firstInstance;
+            } drawIndexed;
+            struct {
+#ifdef VK_EXT_debug_utils
+                VkDebugUtilsLabelEXT label;
+                int labelNameIndex;
+#endif
+            } debugMarkerBegin;
+            struct {
+            } debugMarkerEnd;
+            struct {
+#ifdef VK_EXT_debug_utils
+                VkDebugUtilsLabelEXT label;
+                int labelNameIndex;
+#endif
+            } debugMarkerInsert;
+            struct {
+                int trackerIndex;
+            } transitionResources;
+            struct {
+                int x, y, z;
+            } dispatch;
+            struct {
+                VkCommandBuffer cb;
+            } executeSecondary;
+        } args;
+    };
+
+    QRhiBackendCommandList<Command> commands;
+    QVarLengthArray<QRhiPassResourceTracker, 8> passResTrackers;
+    int currentPassResTrackerIndex;
+
+    void resetCommands() {
+        commands.reset();
+        resetPools();
+
+        passResTrackers.clear();
+        currentPassResTrackerIndex = -1;
+    }
+
+    void resetPools() {
+        pools.clearValue.clear();
+        pools.bufferImageCopy.clear();
+        pools.dynamicOffset.clear();
+        pools.vertexBuffer.clear();
+        pools.vertexBufferOffset.clear();
+        pools.debugMarkerData.clear();
+        pools.imageBarrier.clear();
+        pools.bufferBarrier.clear();
+    }
+
+    struct {
+        QVarLengthArray<VkClearValue, 4> clearValue;
+        QVarLengthArray<VkBufferImageCopy, 16> bufferImageCopy;
+        QVarLengthArray<uint32_t, 4> dynamicOffset;
+        QVarLengthArray<VkBuffer, 4> vertexBuffer;
+        QVarLengthArray<VkDeviceSize, 4> vertexBufferOffset;
+        QVarLengthArray<QByteArray, 4> debugMarkerData;
+        QVarLengthArray<VkImageMemoryBarrier, 8> imageBarrier;
+        QVarLengthArray<VkBufferMemoryBarrier, 8> bufferBarrier;
+    } pools;
+
+    friend class QRhiVulkan;
+};
+
+struct QVkSwapChain : public QRhiSwapChain
+{
+    QVkSwapChain(QRhiImplementation *rhi);
+    ~QVkSwapChain();
+    void destroy() override;
+
+    QRhiCommandBuffer *currentFrameCommandBuffer() override;
+    QRhiRenderTarget *currentFrameRenderTarget() override;
+
+    QSize surfacePixelSize() override;
+    bool isFormatSupported(Format f) override;
+
+    QRhiRenderPassDescriptor *newCompatibleRenderPassDescriptor() override;
+    bool createOrResize() override;
+
+    bool ensureSurface();
+
+    static const quint32 EXPECTED_MAX_BUFFER_COUNT = 4;
+
+    QWindow *window = nullptr;
+    QSize pixelSize;
+    bool supportsReadback = false;
+    VkSwapchainKHR sc = VK_NULL_HANDLE;
+    int bufferCount = 0;
+    VkSurfaceKHR surface = VK_NULL_HANDLE;
+    VkSurfaceKHR lastConnectedSurface = VK_NULL_HANDLE;
+    VkFormat colorFormat = VK_FORMAT_B8G8R8A8_UNORM;
+    VkColorSpaceKHR colorSpace = VK_COLOR_SPACE_SRGB_NONLINEAR_KHR;
+    QVkRenderBuffer *ds = nullptr;
+    VkSampleCountFlagBits samples = VK_SAMPLE_COUNT_1_BIT;
+    QVarLengthArray<VkPresentModeKHR, 8> supportedPresentationModes;
+    VkDeviceMemory msaaImageMem = VK_NULL_HANDLE;
+    QVkSwapChainRenderTarget rtWrapper;
+    QVkCommandBuffer cbWrapper;
+
+    struct ImageResources {
+        VkImage image = VK_NULL_HANDLE;
+        VkImageView imageView = VK_NULL_HANDLE;
+        VkFramebuffer fb = VK_NULL_HANDLE;
+        VkImage msaaImage = VK_NULL_HANDLE;
+        VkImageView msaaImageView = VK_NULL_HANDLE;
+        enum LastUse {
+            ScImageUseNone,
+            ScImageUseRender,
+            ScImageUseTransferSource
+        };
+        LastUse lastUse = ScImageUseNone;
+    };
+    QVarLengthArray<ImageResources, EXPECTED_MAX_BUFFER_COUNT> imageRes;
+
+    struct FrameResources {
+        VkFence imageFence = VK_NULL_HANDLE;
+        bool imageFenceWaitable = false;
+        VkSemaphore imageSem = VK_NULL_HANDLE;
+        VkSemaphore drawSem = VK_NULL_HANDLE;
+        bool imageAcquired = false;
+        bool imageSemWaitable = false;
+        VkFence cmdFence = VK_NULL_HANDLE;
+        bool cmdFenceWaitable = false;
+        VkCommandBuffer cmdBuf = VK_NULL_HANDLE; // primary
+        int timestampQueryIndex = -1;
+    } frameRes[QVK_FRAMES_IN_FLIGHT];
+
+    quint32 currentImageIndex = 0; // index in imageRes
+    quint32 currentFrameSlot = 0; // index in frameRes
+    int frameCount = 0;
+
+    friend class QRhiVulkan;
+};
+
+class QRhiVulkan : public QRhiImplementation
+{
+public:
+    QRhiVulkan(QRhiVulkanInitParams *params, QRhiVulkanNativeHandles *importParams = nullptr);
+
+    bool create(QRhi::Flags flags) override;
+    void destroy() override;
+
+    QRhiGraphicsPipeline *createGraphicsPipeline() override;
+    QRhiComputePipeline *createComputePipeline() override;
+    QRhiShaderResourceBindings *createShaderResourceBindings() override;
+    QRhiBuffer *createBuffer(QRhiBuffer::Type type,
+                             QRhiBuffer::UsageFlags usage,
+                             quint32 size) override;
+    QRhiRenderBuffer *createRenderBuffer(QRhiRenderBuffer::Type type,
+                                         const QSize &pixelSize,
+                                         int sampleCount,
+                                         QRhiRenderBuffer::Flags flags,
+                                         QRhiTexture::Format backingFormatHint) override;
+    QRhiTexture *createTexture(QRhiTexture::Format format,
+                               const QSize &pixelSize,
+                               int depth,
+                               int arraySize,
+                               int sampleCount,
+                               QRhiTexture::Flags flags) override;
+    QRhiSampler *createSampler(QRhiSampler::Filter magFilter,
+                               QRhiSampler::Filter minFilter,
+                               QRhiSampler::Filter mipmapMode,
+                               QRhiSampler:: AddressMode u,
+                               QRhiSampler::AddressMode v,
+                               QRhiSampler::AddressMode w) override;
+
+    QRhiTextureRenderTarget *createTextureRenderTarget(const QRhiTextureRenderTargetDescription &desc,
+                                                       QRhiTextureRenderTarget::Flags flags) override;
+
+    QRhiSwapChain *createSwapChain() override;
+    QRhi::FrameOpResult beginFrame(QRhiSwapChain *swapChain, QRhi::BeginFrameFlags flags) override;
+    QRhi::FrameOpResult endFrame(QRhiSwapChain *swapChain, QRhi::EndFrameFlags flags) override;
+    QRhi::FrameOpResult beginOffscreenFrame(QRhiCommandBuffer **cb, QRhi::BeginFrameFlags flags) override;
+    QRhi::FrameOpResult endOffscreenFrame(QRhi::EndFrameFlags flags) override;
+    QRhi::FrameOpResult finish() override;
+
+    void resourceUpdate(QRhiCommandBuffer *cb, QRhiResourceUpdateBatch *resourceUpdates) override;
+
+    void beginPass(QRhiCommandBuffer *cb,
+                   QRhiRenderTarget *rt,
+                   const QColor &colorClearValue,
+                   const QRhiDepthStencilClearValue &depthStencilClearValue,
+                   QRhiResourceUpdateBatch *resourceUpdates,
+                   QRhiCommandBuffer::BeginPassFlags flags) override;
+    void endPass(QRhiCommandBuffer *cb, QRhiResourceUpdateBatch *resourceUpdates) override;
+
+    void setGraphicsPipeline(QRhiCommandBuffer *cb,
+                             QRhiGraphicsPipeline *ps) override;
+
+    void setShaderResources(QRhiCommandBuffer *cb,
+                            QRhiShaderResourceBindings *srb,
+                            int dynamicOffsetCount,
+                            const QRhiCommandBuffer::DynamicOffset *dynamicOffsets) override;
+
+    void setVertexInput(QRhiCommandBuffer *cb,
+                        int startBinding, int bindingCount, const QRhiCommandBuffer::VertexInput *bindings,
+                        QRhiBuffer *indexBuf, quint32 indexOffset,
+                        QRhiCommandBuffer::IndexFormat indexFormat) override;
+
+    void setViewport(QRhiCommandBuffer *cb, const QRhiViewport &viewport) override;
+    void setScissor(QRhiCommandBuffer *cb, const QRhiScissor &scissor) override;
+    void setBlendConstants(QRhiCommandBuffer *cb, const QColor &c) override;
+    void setStencilRef(QRhiCommandBuffer *cb, quint32 refValue) override;
+
+    void draw(QRhiCommandBuffer *cb, quint32 vertexCount,
+              quint32 instanceCount, quint32 firstVertex, quint32 firstInstance) override;
+
+    void drawIndexed(QRhiCommandBuffer *cb, quint32 indexCount,
+                     quint32 instanceCount, quint32 firstIndex,
+                     qint32 vertexOffset, quint32 firstInstance) override;
+
+    void debugMarkBegin(QRhiCommandBuffer *cb, const QByteArray &name) override;
+    void debugMarkEnd(QRhiCommandBuffer *cb) override;
+    void debugMarkMsg(QRhiCommandBuffer *cb, const QByteArray &msg) override;
+
+    void beginComputePass(QRhiCommandBuffer *cb,
+                          QRhiResourceUpdateBatch *resourceUpdates,
+                          QRhiCommandBuffer::BeginPassFlags flags) override;
+    void endComputePass(QRhiCommandBuffer *cb, QRhiResourceUpdateBatch *resourceUpdates) override;
+    void setComputePipeline(QRhiCommandBuffer *cb, QRhiComputePipeline *ps) override;
+    void dispatch(QRhiCommandBuffer *cb, int x, int y, int z) override;
+
+    const QRhiNativeHandles *nativeHandles(QRhiCommandBuffer *cb) override;
+    void beginExternal(QRhiCommandBuffer *cb) override;
+    void endExternal(QRhiCommandBuffer *cb) override;
+    double lastCompletedGpuTime(QRhiCommandBuffer *cb) override;
+
+    QList<int> supportedSampleCounts() const override;
+    int ubufAlignment() const override;
+    bool isYUpInFramebuffer() const override;
+    bool isYUpInNDC() const override;
+    bool isClipDepthZeroToOne() const override;
+    QMatrix4x4 clipSpaceCorrMatrix() const override;
+    bool isTextureFormatSupported(QRhiTexture::Format format, QRhiTexture::Flags flags) const override;
+    bool isFeatureSupported(QRhi::Feature feature) const override;
+    int resourceLimit(QRhi::ResourceLimit limit) const override;
+    const QRhiNativeHandles *nativeHandles() override;
+    QRhiDriverInfo driverInfo() const override;
+    QRhiStats statistics() override;
+    bool makeThreadLocalNativeContextCurrent() override;
+    void releaseCachedResources() override;
+    bool isDeviceLost() const override;
+
+    QByteArray pipelineCacheData() override;
+    void setPipelineCacheData(const QByteArray &data) override;
+
+    VkResult createDescriptorPool(VkDescriptorPool *pool);
+    bool allocateDescriptorSet(VkDescriptorSetAllocateInfo *allocInfo, VkDescriptorSet *result, int *resultPoolIndex);
+    uint32_t chooseTransientImageMemType(VkImage img, uint32_t startIndex);
+    bool createTransientImage(VkFormat format, const QSize &pixelSize, VkImageUsageFlags usage,
+                              VkImageAspectFlags aspectMask, VkSampleCountFlagBits samples,
+                              VkDeviceMemory *mem, VkImage *images, VkImageView *views, int count);
+
+    bool recreateSwapChain(QRhiSwapChain *swapChain);
+    void releaseSwapChainResources(QRhiSwapChain *swapChain);
+
+    VkFormat optimalDepthStencilFormat();
+    VkSampleCountFlagBits effectiveSampleCount(int sampleCount);
+    bool createDefaultRenderPass(QVkRenderPassDescriptor *rpD,
+                                 bool hasDepthStencil,
+                                 VkSampleCountFlagBits samples,
+                                 VkFormat colorFormat);
+    bool createOffscreenRenderPass(QVkRenderPassDescriptor *rpD,
+                                   const QRhiColorAttachment *firstColorAttachment,
+                                   const QRhiColorAttachment *lastColorAttachment,
+                                   bool preserveColor,
+                                   bool preserveDs,
+                                   QRhiRenderBuffer *depthStencilBuffer,
+                                   QRhiTexture *depthTexture);
+    bool ensurePipelineCache(const void *initialData = nullptr, size_t initialDataSize = 0);
+    VkShaderModule createShader(const QByteArray &spirv);
+
+    void prepareNewFrame(QRhiCommandBuffer *cb);
+    VkCommandBuffer startSecondaryCommandBuffer(QVkRenderTargetData *rtD = nullptr);
+    void endAndEnqueueSecondaryCommandBuffer(VkCommandBuffer cb, QVkCommandBuffer *cbD);
+    QRhi::FrameOpResult startPrimaryCommandBuffer(VkCommandBuffer *cb);
+    QRhi::FrameOpResult endAndSubmitPrimaryCommandBuffer(VkCommandBuffer cb, VkFence cmdFence,
+                                                         VkSemaphore *waitSem, VkSemaphore *signalSem);
+    void waitCommandCompletion(int frameSlot);
+    VkDeviceSize subresUploadByteSize(const QRhiTextureSubresourceUploadDescription &subresDesc) const;
+    using BufferImageCopyList = QVarLengthArray<VkBufferImageCopy, 16>;
+    void prepareUploadSubres(QVkTexture *texD, int layer, int level,
+                             const QRhiTextureSubresourceUploadDescription &subresDesc,
+                             size_t *curOfs, void *mp,
+                             BufferImageCopyList *copyInfos);
+    void enqueueResourceUpdates(QVkCommandBuffer *cbD, QRhiResourceUpdateBatch *resourceUpdates);
+    void executeBufferHostWritesForSlot(QVkBuffer *bufD, int slot);
+    void enqueueTransitionPassResources(QVkCommandBuffer *cbD);
+    void recordPrimaryCommandBuffer(QVkCommandBuffer *cbD);
+    void trackedRegisterBuffer(QRhiPassResourceTracker *passResTracker,
+                               QVkBuffer *bufD,
+                               int slot,
+                               QRhiPassResourceTracker::BufferAccess access,
+                               QRhiPassResourceTracker::BufferStage stage);
+    void trackedRegisterTexture(QRhiPassResourceTracker *passResTracker,
+                                QVkTexture *texD,
+                                QRhiPassResourceTracker::TextureAccess access,
+                                QRhiPassResourceTracker::TextureStage stage);
+    void recordTransitionPassResources(QVkCommandBuffer *cbD, const QRhiPassResourceTracker &tracker);
+    void activateTextureRenderTarget(QVkCommandBuffer *cbD, QVkTextureRenderTarget *rtD);
+    void executeDeferredReleases(bool forced = false);
+    void finishActiveReadbacks(bool forced = false);
+
+    void setObjectName(uint64_t object, VkObjectType type, const QByteArray &name, int slot = -1);
+    void trackedBufferBarrier(QVkCommandBuffer *cbD, QVkBuffer *bufD, int slot,
+                              VkAccessFlags access, VkPipelineStageFlags stage);
+    void trackedImageBarrier(QVkCommandBuffer *cbD, QVkTexture *texD,
+                             VkImageLayout layout, VkAccessFlags access, VkPipelineStageFlags stage);
+    void depthStencilExplicitBarrier(QVkCommandBuffer *cbD, QVkRenderBuffer *rbD);
+    void subresourceBarrier(QVkCommandBuffer *cbD, VkImage image,
+                            VkImageLayout oldLayout, VkImageLayout newLayout,
+                            VkAccessFlags srcAccess, VkAccessFlags dstAccess,
+                            VkPipelineStageFlags srcStage, VkPipelineStageFlags dstStage,
+                            int startLayer, int layerCount,
+                            int startLevel, int levelCount);
+    void updateShaderResourceBindings(QRhiShaderResourceBindings *srb, int descSetIdx = -1);
+    void ensureCommandPoolForNewFrame();
+    double elapsedSecondsFromTimestamp(quint64 timestamp[2], bool *ok);
+
+    QVulkanInstance *inst = nullptr;
+    QWindow *maybeWindow = nullptr;
+    QByteArrayList requestedDeviceExtensions;
+    bool importedDevice = false;
     VkPhysicalDevice physDev = VK_NULL_HANDLE;
-    // to import a device and queue
     VkDevice dev = VK_NULL_HANDLE;
+    VkCommandPool cmdPool[QVK_FRAMES_IN_FLIGHT] = {};
     quint32 gfxQueueFamilyIdx = 0;
     quint32 gfxQueueIdx = 0;
     VkQueue gfxQueue = VK_NULL_HANDLE;
-    // and optionally, the mem allocator
-    void *vmemAllocator = nullptr;
+    quint32 timestampValidBits = 0;
+    bool importedAllocator = false;
+    QVkAllocator allocator = nullptr;
+    QVulkanFunctions *f = nullptr;
+    QVulkanDeviceFunctions *df = nullptr;
+    QRhi::Flags rhiFlags;
+    VkPhysicalDeviceFeatures physDevFeatures;
+#ifdef VK_VERSION_1_2
+    VkPhysicalDeviceVulkan11Features physDevFeatures11;
+    VkPhysicalDeviceVulkan12Features physDevFeatures12;
+#endif
+#ifdef VK_VERSION_1_3
+    VkPhysicalDeviceVulkan13Features physDevFeatures13;
+#endif
+    VkPhysicalDeviceProperties physDevProperties;
+    VkDeviceSize ubufAlign;
+    VkDeviceSize texbufAlign;
+    bool deviceLost = false;
+    bool releaseCachedResourcesCalledBeforeFrameStart = false;
+
+#ifdef VK_EXT_debug_utils
+    PFN_vkSetDebugUtilsObjectNameEXT vkSetDebugUtilsObjectNameEXT = nullptr;
+    PFN_vkCmdBeginDebugUtilsLabelEXT vkCmdBeginDebugUtilsLabelEXT = nullptr;
+    PFN_vkCmdEndDebugUtilsLabelEXT vkCmdEndDebugUtilsLabelEXT = nullptr;
+    PFN_vkCmdInsertDebugUtilsLabelEXT vkCmdInsertDebugUtilsLabelEXT = nullptr;
+#endif
+
+    PFN_vkCreateSwapchainKHR vkCreateSwapchainKHR = nullptr;
+    PFN_vkDestroySwapchainKHR vkDestroySwapchainKHR;
+    PFN_vkGetSwapchainImagesKHR vkGetSwapchainImagesKHR;
+    PFN_vkAcquireNextImageKHR vkAcquireNextImageKHR;
+    PFN_vkQueuePresentKHR vkQueuePresentKHR;
+    PFN_vkGetPhysicalDeviceSurfaceCapabilitiesKHR vkGetPhysicalDeviceSurfaceCapabilitiesKHR;
+    PFN_vkGetPhysicalDeviceSurfaceFormatsKHR vkGetPhysicalDeviceSurfaceFormatsKHR;
+    PFN_vkGetPhysicalDeviceSurfacePresentModesKHR vkGetPhysicalDeviceSurfacePresentModesKHR;
+
+    struct {
+        bool compute = false;
+        bool wideLines = false;
+        bool debugUtils = false;
+        bool vertexAttribDivisor = false;
+        bool texture3DSliceAs2D = false;
+        bool tessellation = false;
+        bool geometryShader = false;
+        bool nonFillPolygonMode = false;
+        QVersionNumber apiVersion;
+    } caps;
+
+    VkPipelineCache pipelineCache = VK_NULL_HANDLE;
+    struct DescriptorPoolData {
+        DescriptorPoolData() { }
+        DescriptorPoolData(VkDescriptorPool pool_)
+            : pool(pool_)
+        { }
+        VkDescriptorPool pool = VK_NULL_HANDLE;
+        int refCount = 0;
+        int allocedDescSets = 0;
+    };
+    QVarLengthArray<DescriptorPoolData, 8> descriptorPools;
+    QVarLengthArray<VkCommandBuffer, 4> freeSecondaryCbs[QVK_FRAMES_IN_FLIGHT];
+
+    VkQueryPool timestampQueryPool = VK_NULL_HANDLE;
+    QBitArray timestampQueryPoolMap;
+
+    VkFormat optimalDsFormat = VK_FORMAT_UNDEFINED;
+    QMatrix4x4 clipCorrectMatrix;
+
+    QVkSwapChain *currentSwapChain = nullptr;
+    QSet<QVkSwapChain *> swapchains;
+    QRhiVulkanNativeHandles nativeHandlesStruct;
+    QRhiDriverInfo driverInfoStruct;
+
+    struct OffscreenFrame {
+        OffscreenFrame(QRhiImplementation *rhi)
+        {
+            for (int i = 0; i < QVK_FRAMES_IN_FLIGHT; ++i)
+                cbWrapper[i] = new QVkCommandBuffer(rhi);
+        }
+        ~OffscreenFrame()
+        {
+            for (int i = 0; i < QVK_FRAMES_IN_FLIGHT; ++i)
+                delete cbWrapper[i];
+        }
+        bool active = false;
+        QVkCommandBuffer *cbWrapper[QVK_FRAMES_IN_FLIGHT];
+        VkFence cmdFence = VK_NULL_HANDLE;
+        int timestampQueryIndex = -1;
+    } ofr;
+
+    struct TextureReadback {
+        int activeFrameSlot = -1;
+        QRhiReadbackDescription desc;
+        QRhiReadbackResult *result;
+        VkBuffer stagingBuf;
+        QVkAlloc stagingAlloc;
+        quint32 byteSize;
+        QSize pixelSize;
+        QRhiTexture::Format format;
+    };
+    QVarLengthArray<TextureReadback, 2> activeTextureReadbacks;
+    struct BufferReadback {
+        int activeFrameSlot = -1;
+        QRhiReadbackResult *result;
+        quint32 byteSize;
+        VkBuffer stagingBuf;
+        QVkAlloc stagingAlloc;
+    };
+    QVarLengthArray<BufferReadback, 2> activeBufferReadbacks;
+
+    struct DeferredReleaseEntry {
+        enum Type {
+            Pipeline,
+            ShaderResourceBindings,
+            Buffer,
+            RenderBuffer,
+            Texture,
+            Sampler,
+            TextureRenderTarget,
+            RenderPass,
+            StagingBuffer,
+            SecondaryCommandBuffer
+        };
+        Type type;
+        int lastActiveFrameSlot; // -1 if not used otherwise 0..FRAMES_IN_FLIGHT-1
+        union {
+            struct {
+                VkPipeline pipeline;
+                VkPipelineLayout layout;
+            } pipelineState;
+            struct {
+                int poolIndex;
+                VkDescriptorSetLayout layout;
+            } shaderResourceBindings;
+            struct {
+                VkBuffer buffers[QVK_FRAMES_IN_FLIGHT];
+                QVkAlloc allocations[QVK_FRAMES_IN_FLIGHT];
+                VkBuffer stagingBuffers[QVK_FRAMES_IN_FLIGHT];
+                QVkAlloc stagingAllocations[QVK_FRAMES_IN_FLIGHT];
+            } buffer;
+            struct {
+                VkDeviceMemory memory;
+                VkImage image;
+                VkImageView imageView;
+            } renderBuffer;
+            struct {
+                VkImage image;
+                VkImageView imageView;
+                QVkAlloc allocation;
+                VkBuffer stagingBuffers[QVK_FRAMES_IN_FLIGHT];
+                QVkAlloc stagingAllocations[QVK_FRAMES_IN_FLIGHT];
+                VkImageView extraImageViews[QRhi::MAX_MIP_LEVELS];
+            } texture;
+            struct {
+                VkSampler sampler;
+            } sampler;
+            struct {
+                VkFramebuffer fb;
+                VkImageView rtv[QVkRenderTargetData::MAX_COLOR_ATTACHMENTS];
+                VkImageView resrtv[QVkRenderTargetData::MAX_COLOR_ATTACHMENTS];
+            } textureRenderTarget;
+            struct {
+                VkRenderPass rp;
+            } renderPass;
+            struct {
+                VkBuffer stagingBuffer;
+                QVkAlloc stagingAllocation;
+            } stagingBuffer;
+            struct {
+                VkCommandBuffer cb;
+            } secondaryCommandBuffer;
+        };
+    };
+    QList<DeferredReleaseEntry> releaseQueue;
 };
 
-struct Q_GUI_EXPORT QRhiVulkanCommandBufferNativeHandles : public QRhiNativeHandles
-{
-    VkCommandBuffer commandBuffer = VK_NULL_HANDLE;
-};
-
-struct Q_GUI_EXPORT QRhiVulkanRenderPassNativeHandles : public QRhiNativeHandles
-{
-    VkRenderPass renderPass = VK_NULL_HANDLE;
-};
+Q_DECLARE_TYPEINFO(QRhiVulkan::DescriptorPoolData, Q_RELOCATABLE_TYPE);
+Q_DECLARE_TYPEINFO(QRhiVulkan::DeferredReleaseEntry, Q_RELOCATABLE_TYPE);
+Q_DECLARE_TYPEINFO(QRhiVulkan::TextureReadback, Q_RELOCATABLE_TYPE);
+Q_DECLARE_TYPEINFO(QRhiVulkan::BufferReadback, Q_RELOCATABLE_TYPE);
 
 QT_END_NAMESPACE
 
diff --git a/src/gui/rhi/qrhivulkan_p_p.h b/src/gui/rhi/qrhivulkan_p_p.h
deleted file mode 100644
index 22214723..00000000
--- a/src/gui/rhi/qrhivulkan_p_p.h
+++ /dev/null
@@ -1,1001 +0,0 @@
-// Copyright (C) 2019 The Qt Company Ltd.
-// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
-
-#ifndef QRHIVULKAN_P_H
-#define QRHIVULKAN_P_H
-
-//
-//  W A R N I N G
-//  -------------
-//
-// This file is not part of the Qt API.  It exists purely as an
-// implementation detail.  This header file may change from version to
-// version without notice, or even be removed.
-//
-// We mean it.
-//
-
-#include "qrhivulkan_p.h"
-#include "qrhi_p_p.h"
-
-QT_BEGIN_NAMESPACE
-
-class QVulkanFunctions;
-class QVulkanDeviceFunctions;
-
-static const int QVK_FRAMES_IN_FLIGHT = 2;
-
-static const int QVK_DESC_SETS_PER_POOL = 128;
-static const int QVK_UNIFORM_BUFFERS_PER_POOL = 256;
-static const int QVK_COMBINED_IMAGE_SAMPLERS_PER_POOL = 256;
-static const int QVK_STORAGE_BUFFERS_PER_POOL = 128;
-static const int QVK_STORAGE_IMAGES_PER_POOL = 128;
-
-static const int QVK_MAX_ACTIVE_TIMESTAMP_PAIRS = 16;
-
-// no vk_mem_alloc.h available here, void* is good enough
-typedef void * QVkAlloc;
-typedef void * QVkAllocator;
-
-struct QVkBuffer : public QRhiBuffer
-{
-    QVkBuffer(QRhiImplementation *rhi, Type type, UsageFlags usage, quint32 size);
-    ~QVkBuffer();
-    void destroy() override;
-    bool create() override;
-    QRhiBuffer::NativeBuffer nativeBuffer() override;
-    char *beginFullDynamicBufferUpdateForCurrentFrame() override;
-    void endFullDynamicBufferUpdateForCurrentFrame() override;
-
-    VkBuffer buffers[QVK_FRAMES_IN_FLIGHT];
-    QVkAlloc allocations[QVK_FRAMES_IN_FLIGHT];
-    struct DynamicUpdate {
-        quint32 offset;
-        QRhiBufferData data;
-    };
-    QVarLengthArray<DynamicUpdate, 16> pendingDynamicUpdates[QVK_FRAMES_IN_FLIGHT];
-    VkBuffer stagingBuffers[QVK_FRAMES_IN_FLIGHT];
-    QVkAlloc stagingAllocations[QVK_FRAMES_IN_FLIGHT];
-    struct UsageState {
-        VkAccessFlags access = 0;
-        VkPipelineStageFlags stage = 0;
-    };
-    UsageState usageState[QVK_FRAMES_IN_FLIGHT];
-    int lastActiveFrameSlot = -1;
-    uint generation = 0;
-    friend class QRhiVulkan;
-};
-
-Q_DECLARE_TYPEINFO(QVkBuffer::DynamicUpdate, Q_RELOCATABLE_TYPE);
-
-struct QVkTexture;
-
-struct QVkRenderBuffer : public QRhiRenderBuffer
-{
-    QVkRenderBuffer(QRhiImplementation *rhi, Type type, const QSize &pixelSize,
-                    int sampleCount, Flags flags,
-                    QRhiTexture::Format backingFormatHint);
-    ~QVkRenderBuffer();
-    void destroy() override;
-    bool create() override;
-    QRhiTexture::Format backingFormat() const override;
-
-    VkDeviceMemory memory = VK_NULL_HANDLE;
-    VkImage image = VK_NULL_HANDLE;
-    VkImageView imageView = VK_NULL_HANDLE;
-    VkSampleCountFlagBits samples;
-    QVkTexture *backingTexture = nullptr;
-    VkFormat vkformat;
-    int lastActiveFrameSlot = -1;
-    uint generation = 0;
-    friend class QRhiVulkan;
-};
-
-struct QVkTexture : public QRhiTexture
-{
-    QVkTexture(QRhiImplementation *rhi, Format format, const QSize &pixelSize, int depth,
-               int arraySize, int sampleCount, Flags flags);
-    ~QVkTexture();
-    void destroy() override;
-    bool create() override;
-    bool createFrom(NativeTexture src) override;
-    NativeTexture nativeTexture() override;
-    void setNativeLayout(int layout) override;
-
-    bool prepareCreate(QSize *adjustedSize = nullptr);
-    bool finishCreate();
-    VkImageView imageViewForLevel(int level);
-
-    VkImage image = VK_NULL_HANDLE;
-    VkImageView imageView = VK_NULL_HANDLE;
-    QVkAlloc imageAlloc = nullptr;
-    VkBuffer stagingBuffers[QVK_FRAMES_IN_FLIGHT];
-    QVkAlloc stagingAllocations[QVK_FRAMES_IN_FLIGHT];
-    VkImageView perLevelImageViews[QRhi::MAX_MIP_LEVELS];
-    bool owns = true;
-    struct UsageState {
-        // no tracking of subresource layouts (some operations can keep
-        // subresources in different layouts for some time, but that does not
-        // need to be kept track of)
-        VkImageLayout layout;
-        VkAccessFlags access;
-        VkPipelineStageFlags stage;
-    };
-    UsageState usageState;
-    VkFormat vkformat;
-    uint mipLevelCount = 0;
-    VkSampleCountFlagBits samples;
-    int lastActiveFrameSlot = -1;
-    uint generation = 0;
-    friend class QRhiVulkan;
-};
-
-struct QVkSampler : public QRhiSampler
-{
-    QVkSampler(QRhiImplementation *rhi, Filter magFilter, Filter minFilter, Filter mipmapMode,
-               AddressMode u, AddressMode v, AddressMode w);
-    ~QVkSampler();
-    void destroy() override;
-    bool create() override;
-
-    VkSampler sampler = VK_NULL_HANDLE;
-    int lastActiveFrameSlot = -1;
-    uint generation = 0;
-    friend class QRhiVulkan;
-};
-
-struct QVkRenderPassDescriptor : public QRhiRenderPassDescriptor
-{
-    QVkRenderPassDescriptor(QRhiImplementation *rhi);
-    ~QVkRenderPassDescriptor();
-    void destroy() override;
-    bool isCompatible(const QRhiRenderPassDescriptor *other) const override;
-    QRhiRenderPassDescriptor *newCompatibleRenderPassDescriptor() const override;
-    QVector<quint32> serializedFormat() const override;
-    const QRhiNativeHandles *nativeHandles() override;
-
-    void updateSerializedFormat();
-
-    VkRenderPass rp = VK_NULL_HANDLE;
-    bool ownsRp = false;
-    QVarLengthArray<VkAttachmentDescription, 8> attDescs;
-    QVarLengthArray<VkAttachmentReference, 8> colorRefs;
-    QVarLengthArray<VkAttachmentReference, 8> resolveRefs;
-    QVarLengthArray<VkSubpassDependency, 2> subpassDeps;
-    bool hasDepthStencil = false;
-    VkAttachmentReference dsRef;
-    QVector<quint32> serializedFormatData;
-    QRhiVulkanRenderPassNativeHandles nativeHandlesStruct;
-    int lastActiveFrameSlot = -1;
-};
-
-struct QVkRenderTargetData
-{
-    VkFramebuffer fb = VK_NULL_HANDLE;
-    QVkRenderPassDescriptor *rp = nullptr;
-    QSize pixelSize;
-    float dpr = 1;
-    int sampleCount = 1;
-    int colorAttCount = 0;
-    int dsAttCount = 0;
-    int resolveAttCount = 0;
-    QRhiRenderTargetAttachmentTracker::ResIdList currentResIdList;
-    static const int MAX_COLOR_ATTACHMENTS = 8;
-};
-
-struct QVkSwapChainRenderTarget : public QRhiSwapChainRenderTarget
-{
-    QVkSwapChainRenderTarget(QRhiImplementation *rhi, QRhiSwapChain *swapchain);
-    ~QVkSwapChainRenderTarget();
-    void destroy() override;
-
-    QSize pixelSize() const override;
-    float devicePixelRatio() const override;
-    int sampleCount() const override;
-
-    QVkRenderTargetData d;
-};
-
-struct QVkTextureRenderTarget : public QRhiTextureRenderTarget
-{
-    QVkTextureRenderTarget(QRhiImplementation *rhi, const QRhiTextureRenderTargetDescription &desc, Flags flags);
-    ~QVkTextureRenderTarget();
-    void destroy() override;
-
-    QSize pixelSize() const override;
-    float devicePixelRatio() const override;
-    int sampleCount() const override;
-
-    QRhiRenderPassDescriptor *newCompatibleRenderPassDescriptor() override;
-    bool create() override;
-
-    QVkRenderTargetData d;
-    VkImageView rtv[QVkRenderTargetData::MAX_COLOR_ATTACHMENTS];
-    VkImageView resrtv[QVkRenderTargetData::MAX_COLOR_ATTACHMENTS];
-    int lastActiveFrameSlot = -1;
-    friend class QRhiVulkan;
-};
-
-struct QVkShaderResourceBindings : public QRhiShaderResourceBindings
-{
-    QVkShaderResourceBindings(QRhiImplementation *rhi);
-    ~QVkShaderResourceBindings();
-    void destroy() override;
-    bool create() override;
-    void updateResources(UpdateFlags flags) override;
-
-    QVarLengthArray<QRhiShaderResourceBinding, 8> sortedBindings;
-    bool hasSlottedResource = false;
-    bool hasDynamicOffset = false;
-    int poolIndex = -1;
-    VkDescriptorSetLayout layout = VK_NULL_HANDLE;
-    VkDescriptorSet descSets[QVK_FRAMES_IN_FLIGHT]; // multiple sets to support dynamic buffers
-    int lastActiveFrameSlot = -1;
-    uint generation = 0;
-
-    // Keep track of the generation number of each referenced QRhi* to be able
-    // to detect that the underlying descriptor set became out of date and they
-    // need to be written again with the up-to-date VkBuffer etc. objects.
-    struct BoundUniformBufferData {
-        quint64 id;
-        uint generation;
-    };
-    struct BoundSampledTextureData {
-        int count;
-        struct {
-            quint64 texId;
-            uint texGeneration;
-            quint64 samplerId;
-            uint samplerGeneration;
-        } d[QRhiShaderResourceBinding::Data::MAX_TEX_SAMPLER_ARRAY_SIZE];
-    };
-    struct BoundStorageImageData {
-        quint64 id;
-        uint generation;
-    };
-    struct BoundStorageBufferData {
-        quint64 id;
-        uint generation;
-    };
-    struct BoundResourceData {
-        union {
-            BoundUniformBufferData ubuf;
-            BoundSampledTextureData stex;
-            BoundStorageImageData simage;
-            BoundStorageBufferData sbuf;
-        };
-    };
-    QVarLengthArray<BoundResourceData, 8> boundResourceData[QVK_FRAMES_IN_FLIGHT];
-
-    friend class QRhiVulkan;
-};
-
-Q_DECLARE_TYPEINFO(QVkShaderResourceBindings::BoundResourceData, Q_RELOCATABLE_TYPE);
-
-struct QVkGraphicsPipeline : public QRhiGraphicsPipeline
-{
-    QVkGraphicsPipeline(QRhiImplementation *rhi);
-    ~QVkGraphicsPipeline();
-    void destroy() override;
-    bool create() override;
-
-    VkPipelineLayout layout = VK_NULL_HANDLE;
-    VkPipeline pipeline = VK_NULL_HANDLE;
-    int lastActiveFrameSlot = -1;
-    uint generation = 0;
-    friend class QRhiVulkan;
-};
-
-struct QVkComputePipeline : public QRhiComputePipeline
-{
-    QVkComputePipeline(QRhiImplementation *rhi);
-    ~QVkComputePipeline();
-    void destroy() override;
-    bool create() override;
-
-    VkPipelineLayout layout = VK_NULL_HANDLE;
-    VkPipeline pipeline = VK_NULL_HANDLE;
-    int lastActiveFrameSlot = -1;
-    uint generation = 0;
-    friend class QRhiVulkan;
-};
-
-struct QVkCommandBuffer : public QRhiCommandBuffer
-{
-    QVkCommandBuffer(QRhiImplementation *rhi);
-    ~QVkCommandBuffer();
-    void destroy() override;
-
-    const QRhiNativeHandles *nativeHandles();
-
-    VkCommandBuffer cb = VK_NULL_HANDLE; // primary
-    QRhiVulkanCommandBufferNativeHandles nativeHandlesStruct;
-
-    enum PassType {
-        NoPass,
-        RenderPass,
-        ComputePass
-    };
-
-    void resetState() {
-        recordingPass = NoPass;
-        passUsesSecondaryCb = false;
-        currentTarget = nullptr;
-        activeSecondaryCbStack.clear();
-        resetCommands();
-        resetCachedState();
-    }
-
-    void resetCachedState() {
-        currentGraphicsPipeline = nullptr;
-        currentComputePipeline = nullptr;
-        currentPipelineGeneration = 0;
-        currentGraphicsSrb = nullptr;
-        currentComputeSrb = nullptr;
-        currentSrbGeneration = 0;
-        currentDescSetSlot = -1;
-        currentIndexBuffer = VK_NULL_HANDLE;
-        currentIndexOffset = 0;
-        currentIndexFormat = VK_INDEX_TYPE_UINT16;
-        memset(currentVertexBuffers, 0, sizeof(currentVertexBuffers));
-        memset(currentVertexOffsets, 0, sizeof(currentVertexOffsets));
-        inExternal = false;
-    }
-
-    PassType recordingPass;
-    bool passUsesSecondaryCb;
-    QRhiRenderTarget *currentTarget;
-    QRhiGraphicsPipeline *currentGraphicsPipeline;
-    QRhiComputePipeline *currentComputePipeline;
-    uint currentPipelineGeneration;
-    QRhiShaderResourceBindings *currentGraphicsSrb;
-    QRhiShaderResourceBindings *currentComputeSrb;
-    uint currentSrbGeneration;
-    int currentDescSetSlot;
-    VkBuffer currentIndexBuffer;
-    quint32 currentIndexOffset;
-    VkIndexType currentIndexFormat;
-    static const int VERTEX_INPUT_RESOURCE_SLOT_COUNT = 32;
-    VkBuffer currentVertexBuffers[VERTEX_INPUT_RESOURCE_SLOT_COUNT];
-    quint32 currentVertexOffsets[VERTEX_INPUT_RESOURCE_SLOT_COUNT];
-    QVarLengthArray<VkCommandBuffer, 4> activeSecondaryCbStack;
-    bool inExternal;
-
-    struct {
-        QHash<QRhiResource *, QPair<VkAccessFlags, bool> > writtenResources;
-        void reset() {
-            writtenResources.clear();
-        }
-    } computePassState;
-
-    struct Command {
-        enum Cmd {
-            CopyBuffer,
-            CopyBufferToImage,
-            CopyImage,
-            CopyImageToBuffer,
-            ImageBarrier,
-            BufferBarrier,
-            BlitImage,
-            BeginRenderPass,
-            EndRenderPass,
-            BindPipeline,
-            BindDescriptorSet,
-            BindVertexBuffer,
-            BindIndexBuffer,
-            SetViewport,
-            SetScissor,
-            SetBlendConstants,
-            SetStencilRef,
-            Draw,
-            DrawIndexed,
-            DebugMarkerBegin,
-            DebugMarkerEnd,
-            DebugMarkerInsert,
-            TransitionPassResources,
-            Dispatch,
-            ExecuteSecondary
-        };
-        Cmd cmd;
-
-        union Args {
-            struct {
-                VkBuffer src;
-                VkBuffer dst;
-                VkBufferCopy desc;
-            } copyBuffer;
-            struct {
-                VkBuffer src;
-                VkImage dst;
-                VkImageLayout dstLayout;
-                int count;
-                int bufferImageCopyIndex;
-            } copyBufferToImage;
-            struct {
-                VkImage src;
-                VkImageLayout srcLayout;
-                VkImage dst;
-                VkImageLayout dstLayout;
-                VkImageCopy desc;
-            } copyImage;
-            struct {
-                VkImage src;
-                VkImageLayout srcLayout;
-                VkBuffer dst;
-                VkBufferImageCopy desc;
-            } copyImageToBuffer;
-            struct {
-                VkPipelineStageFlags srcStageMask;
-                VkPipelineStageFlags dstStageMask;
-                int count;
-                int index;
-            } imageBarrier;
-            struct {
-                VkPipelineStageFlags srcStageMask;
-                VkPipelineStageFlags dstStageMask;
-                int count;
-                int index;
-            } bufferBarrier;
-            struct {
-                VkImage src;
-                VkImageLayout srcLayout;
-                VkImage dst;
-                VkImageLayout dstLayout;
-                VkFilter filter;
-                VkImageBlit desc;
-            } blitImage;
-            struct {
-                VkRenderPassBeginInfo desc;
-                int clearValueIndex;
-                bool useSecondaryCb;
-            } beginRenderPass;
-            struct {
-            } endRenderPass;
-            struct {
-                VkPipelineBindPoint bindPoint;
-                VkPipeline pipeline;
-            } bindPipeline;
-            struct {
-                VkPipelineBindPoint bindPoint;
-                VkPipelineLayout pipelineLayout;
-                VkDescriptorSet descSet;
-                int dynamicOffsetCount;
-                int dynamicOffsetIndex;
-            } bindDescriptorSet;
-            struct {
-                int startBinding;
-                int count;
-                int vertexBufferIndex;
-                int vertexBufferOffsetIndex;
-            } bindVertexBuffer;
-            struct {
-                VkBuffer buf;
-                VkDeviceSize ofs;
-                VkIndexType type;
-            } bindIndexBuffer;
-            struct {
-                VkViewport viewport;
-            } setViewport;
-            struct {
-                VkRect2D scissor;
-            } setScissor;
-            struct {
-                float c[4];
-            } setBlendConstants;
-            struct {
-                uint32_t ref;
-            } setStencilRef;
-            struct {
-                uint32_t vertexCount;
-                uint32_t instanceCount;
-                uint32_t firstVertex;
-                uint32_t firstInstance;
-            } draw;
-            struct {
-                uint32_t indexCount;
-                uint32_t instanceCount;
-                uint32_t firstIndex;
-                int32_t vertexOffset;
-                uint32_t firstInstance;
-            } drawIndexed;
-            struct {
-#ifdef VK_EXT_debug_utils
-                VkDebugUtilsLabelEXT label;
-                int labelNameIndex;
-#endif
-            } debugMarkerBegin;
-            struct {
-            } debugMarkerEnd;
-            struct {
-#ifdef VK_EXT_debug_utils
-                VkDebugUtilsLabelEXT label;
-                int labelNameIndex;
-#endif
-            } debugMarkerInsert;
-            struct {
-                int trackerIndex;
-            } transitionResources;
-            struct {
-                int x, y, z;
-            } dispatch;
-            struct {
-                VkCommandBuffer cb;
-            } executeSecondary;
-        } args;
-    };
-
-    QRhiBackendCommandList<Command> commands;
-    QVarLengthArray<QRhiPassResourceTracker, 8> passResTrackers;
-    int currentPassResTrackerIndex;
-
-    void resetCommands() {
-        commands.reset();
-        resetPools();
-
-        passResTrackers.clear();
-        currentPassResTrackerIndex = -1;
-    }
-
-    void resetPools() {
-        pools.clearValue.clear();
-        pools.bufferImageCopy.clear();
-        pools.dynamicOffset.clear();
-        pools.vertexBuffer.clear();
-        pools.vertexBufferOffset.clear();
-        pools.debugMarkerData.clear();
-        pools.imageBarrier.clear();
-        pools.bufferBarrier.clear();
-    }
-
-    struct {
-        QVarLengthArray<VkClearValue, 4> clearValue;
-        QVarLengthArray<VkBufferImageCopy, 16> bufferImageCopy;
-        QVarLengthArray<uint32_t, 4> dynamicOffset;
-        QVarLengthArray<VkBuffer, 4> vertexBuffer;
-        QVarLengthArray<VkDeviceSize, 4> vertexBufferOffset;
-        QVarLengthArray<QByteArray, 4> debugMarkerData;
-        QVarLengthArray<VkImageMemoryBarrier, 8> imageBarrier;
-        QVarLengthArray<VkBufferMemoryBarrier, 8> bufferBarrier;
-    } pools;
-
-    friend class QRhiVulkan;
-};
-
-struct QVkSwapChain : public QRhiSwapChain
-{
-    QVkSwapChain(QRhiImplementation *rhi);
-    ~QVkSwapChain();
-    void destroy() override;
-
-    QRhiCommandBuffer *currentFrameCommandBuffer() override;
-    QRhiRenderTarget *currentFrameRenderTarget() override;
-
-    QSize surfacePixelSize() override;
-    bool isFormatSupported(Format f) override;
-
-    QRhiRenderPassDescriptor *newCompatibleRenderPassDescriptor() override;
-    bool createOrResize() override;
-
-    bool ensureSurface();
-
-    static const quint32 EXPECTED_MAX_BUFFER_COUNT = 4;
-
-    QWindow *window = nullptr;
-    QSize pixelSize;
-    bool supportsReadback = false;
-    VkSwapchainKHR sc = VK_NULL_HANDLE;
-    int bufferCount = 0;
-    VkSurfaceKHR surface = VK_NULL_HANDLE;
-    VkSurfaceKHR lastConnectedSurface = VK_NULL_HANDLE;
-    VkFormat colorFormat = VK_FORMAT_B8G8R8A8_UNORM;
-    VkColorSpaceKHR colorSpace = VK_COLOR_SPACE_SRGB_NONLINEAR_KHR;
-    QVkRenderBuffer *ds = nullptr;
-    VkSampleCountFlagBits samples = VK_SAMPLE_COUNT_1_BIT;
-    QVarLengthArray<VkPresentModeKHR, 8> supportedPresentationModes;
-    VkDeviceMemory msaaImageMem = VK_NULL_HANDLE;
-    QVkSwapChainRenderTarget rtWrapper;
-    QVkCommandBuffer cbWrapper;
-
-    struct ImageResources {
-        VkImage image = VK_NULL_HANDLE;
-        VkImageView imageView = VK_NULL_HANDLE;
-        VkFramebuffer fb = VK_NULL_HANDLE;
-        VkImage msaaImage = VK_NULL_HANDLE;
-        VkImageView msaaImageView = VK_NULL_HANDLE;
-        enum LastUse {
-            ScImageUseNone,
-            ScImageUseRender,
-            ScImageUseTransferSource
-        };
-        LastUse lastUse = ScImageUseNone;
-    };
-    QVarLengthArray<ImageResources, EXPECTED_MAX_BUFFER_COUNT> imageRes;
-
-    struct FrameResources {
-        VkFence imageFence = VK_NULL_HANDLE;
-        bool imageFenceWaitable = false;
-        VkSemaphore imageSem = VK_NULL_HANDLE;
-        VkSemaphore drawSem = VK_NULL_HANDLE;
-        bool imageAcquired = false;
-        bool imageSemWaitable = false;
-        VkFence cmdFence = VK_NULL_HANDLE;
-        bool cmdFenceWaitable = false;
-        VkCommandBuffer cmdBuf = VK_NULL_HANDLE; // primary
-        int timestampQueryIndex = -1;
-    } frameRes[QVK_FRAMES_IN_FLIGHT];
-
-    quint32 currentImageIndex = 0; // index in imageRes
-    quint32 currentFrameSlot = 0; // index in frameRes
-    int frameCount = 0;
-
-    friend class QRhiVulkan;
-};
-
-class QRhiVulkan : public QRhiImplementation
-{
-public:
-    QRhiVulkan(QRhiVulkanInitParams *params, QRhiVulkanNativeHandles *importParams = nullptr);
-
-    bool create(QRhi::Flags flags) override;
-    void destroy() override;
-
-    QRhiGraphicsPipeline *createGraphicsPipeline() override;
-    QRhiComputePipeline *createComputePipeline() override;
-    QRhiShaderResourceBindings *createShaderResourceBindings() override;
-    QRhiBuffer *createBuffer(QRhiBuffer::Type type,
-                             QRhiBuffer::UsageFlags usage,
-                             quint32 size) override;
-    QRhiRenderBuffer *createRenderBuffer(QRhiRenderBuffer::Type type,
-                                         const QSize &pixelSize,
-                                         int sampleCount,
-                                         QRhiRenderBuffer::Flags flags,
-                                         QRhiTexture::Format backingFormatHint) override;
-    QRhiTexture *createTexture(QRhiTexture::Format format,
-                               const QSize &pixelSize,
-                               int depth,
-                               int arraySize,
-                               int sampleCount,
-                               QRhiTexture::Flags flags) override;
-    QRhiSampler *createSampler(QRhiSampler::Filter magFilter,
-                               QRhiSampler::Filter minFilter,
-                               QRhiSampler::Filter mipmapMode,
-                               QRhiSampler:: AddressMode u,
-                               QRhiSampler::AddressMode v,
-                               QRhiSampler::AddressMode w) override;
-
-    QRhiTextureRenderTarget *createTextureRenderTarget(const QRhiTextureRenderTargetDescription &desc,
-                                                       QRhiTextureRenderTarget::Flags flags) override;
-
-    QRhiSwapChain *createSwapChain() override;
-    QRhi::FrameOpResult beginFrame(QRhiSwapChain *swapChain, QRhi::BeginFrameFlags flags) override;
-    QRhi::FrameOpResult endFrame(QRhiSwapChain *swapChain, QRhi::EndFrameFlags flags) override;
-    QRhi::FrameOpResult beginOffscreenFrame(QRhiCommandBuffer **cb, QRhi::BeginFrameFlags flags) override;
-    QRhi::FrameOpResult endOffscreenFrame(QRhi::EndFrameFlags flags) override;
-    QRhi::FrameOpResult finish() override;
-
-    void resourceUpdate(QRhiCommandBuffer *cb, QRhiResourceUpdateBatch *resourceUpdates) override;
-
-    void beginPass(QRhiCommandBuffer *cb,
-                   QRhiRenderTarget *rt,
-                   const QColor &colorClearValue,
-                   const QRhiDepthStencilClearValue &depthStencilClearValue,
-                   QRhiResourceUpdateBatch *resourceUpdates,
-                   QRhiCommandBuffer::BeginPassFlags flags) override;
-    void endPass(QRhiCommandBuffer *cb, QRhiResourceUpdateBatch *resourceUpdates) override;
-
-    void setGraphicsPipeline(QRhiCommandBuffer *cb,
-                             QRhiGraphicsPipeline *ps) override;
-
-    void setShaderResources(QRhiCommandBuffer *cb,
-                            QRhiShaderResourceBindings *srb,
-                            int dynamicOffsetCount,
-                            const QRhiCommandBuffer::DynamicOffset *dynamicOffsets) override;
-
-    void setVertexInput(QRhiCommandBuffer *cb,
-                        int startBinding, int bindingCount, const QRhiCommandBuffer::VertexInput *bindings,
-                        QRhiBuffer *indexBuf, quint32 indexOffset,
-                        QRhiCommandBuffer::IndexFormat indexFormat) override;
-
-    void setViewport(QRhiCommandBuffer *cb, const QRhiViewport &viewport) override;
-    void setScissor(QRhiCommandBuffer *cb, const QRhiScissor &scissor) override;
-    void setBlendConstants(QRhiCommandBuffer *cb, const QColor &c) override;
-    void setStencilRef(QRhiCommandBuffer *cb, quint32 refValue) override;
-
-    void draw(QRhiCommandBuffer *cb, quint32 vertexCount,
-              quint32 instanceCount, quint32 firstVertex, quint32 firstInstance) override;
-
-    void drawIndexed(QRhiCommandBuffer *cb, quint32 indexCount,
-                     quint32 instanceCount, quint32 firstIndex,
-                     qint32 vertexOffset, quint32 firstInstance) override;
-
-    void debugMarkBegin(QRhiCommandBuffer *cb, const QByteArray &name) override;
-    void debugMarkEnd(QRhiCommandBuffer *cb) override;
-    void debugMarkMsg(QRhiCommandBuffer *cb, const QByteArray &msg) override;
-
-    void beginComputePass(QRhiCommandBuffer *cb,
-                          QRhiResourceUpdateBatch *resourceUpdates,
-                          QRhiCommandBuffer::BeginPassFlags flags) override;
-    void endComputePass(QRhiCommandBuffer *cb, QRhiResourceUpdateBatch *resourceUpdates) override;
-    void setComputePipeline(QRhiCommandBuffer *cb, QRhiComputePipeline *ps) override;
-    void dispatch(QRhiCommandBuffer *cb, int x, int y, int z) override;
-
-    const QRhiNativeHandles *nativeHandles(QRhiCommandBuffer *cb) override;
-    void beginExternal(QRhiCommandBuffer *cb) override;
-    void endExternal(QRhiCommandBuffer *cb) override;
-
-    QList<int> supportedSampleCounts() const override;
-    int ubufAlignment() const override;
-    bool isYUpInFramebuffer() const override;
-    bool isYUpInNDC() const override;
-    bool isClipDepthZeroToOne() const override;
-    QMatrix4x4 clipSpaceCorrMatrix() const override;
-    bool isTextureFormatSupported(QRhiTexture::Format format, QRhiTexture::Flags flags) const override;
-    bool isFeatureSupported(QRhi::Feature feature) const override;
-    int resourceLimit(QRhi::ResourceLimit limit) const override;
-    const QRhiNativeHandles *nativeHandles() override;
-    QRhiDriverInfo driverInfo() const override;
-    QRhiStats statistics() override;
-    bool makeThreadLocalNativeContextCurrent() override;
-    void releaseCachedResources() override;
-    bool isDeviceLost() const override;
-
-    QByteArray pipelineCacheData() override;
-    void setPipelineCacheData(const QByteArray &data) override;
-
-    VkResult createDescriptorPool(VkDescriptorPool *pool);
-    bool allocateDescriptorSet(VkDescriptorSetAllocateInfo *allocInfo, VkDescriptorSet *result, int *resultPoolIndex);
-    uint32_t chooseTransientImageMemType(VkImage img, uint32_t startIndex);
-    bool createTransientImage(VkFormat format, const QSize &pixelSize, VkImageUsageFlags usage,
-                              VkImageAspectFlags aspectMask, VkSampleCountFlagBits samples,
-                              VkDeviceMemory *mem, VkImage *images, VkImageView *views, int count);
-
-    bool recreateSwapChain(QRhiSwapChain *swapChain);
-    void releaseSwapChainResources(QRhiSwapChain *swapChain);
-
-    VkFormat optimalDepthStencilFormat();
-    VkSampleCountFlagBits effectiveSampleCount(int sampleCount);
-    bool createDefaultRenderPass(QVkRenderPassDescriptor *rpD,
-                                 bool hasDepthStencil,
-                                 VkSampleCountFlagBits samples,
-                                 VkFormat colorFormat);
-    bool createOffscreenRenderPass(QVkRenderPassDescriptor *rpD,
-                                   const QRhiColorAttachment *firstColorAttachment,
-                                   const QRhiColorAttachment *lastColorAttachment,
-                                   bool preserveColor,
-                                   bool preserveDs,
-                                   QRhiRenderBuffer *depthStencilBuffer,
-                                   QRhiTexture *depthTexture);
-    bool ensurePipelineCache(const void *initialData = nullptr, size_t initialDataSize = 0);
-    VkShaderModule createShader(const QByteArray &spirv);
-
-    void prepareNewFrame(QRhiCommandBuffer *cb);
-    VkCommandBuffer startSecondaryCommandBuffer(QVkRenderTargetData *rtD = nullptr);
-    void endAndEnqueueSecondaryCommandBuffer(VkCommandBuffer cb, QVkCommandBuffer *cbD);
-    QRhi::FrameOpResult startPrimaryCommandBuffer(VkCommandBuffer *cb);
-    QRhi::FrameOpResult endAndSubmitPrimaryCommandBuffer(VkCommandBuffer cb, VkFence cmdFence,
-                                                         VkSemaphore *waitSem, VkSemaphore *signalSem);
-    void waitCommandCompletion(int frameSlot);
-    VkDeviceSize subresUploadByteSize(const QRhiTextureSubresourceUploadDescription &subresDesc) const;
-    using BufferImageCopyList = QVarLengthArray<VkBufferImageCopy, 16>;
-    void prepareUploadSubres(QVkTexture *texD, int layer, int level,
-                             const QRhiTextureSubresourceUploadDescription &subresDesc,
-                             size_t *curOfs, void *mp,
-                             BufferImageCopyList *copyInfos);
-    void enqueueResourceUpdates(QVkCommandBuffer *cbD, QRhiResourceUpdateBatch *resourceUpdates);
-    void executeBufferHostWritesForSlot(QVkBuffer *bufD, int slot);
-    void enqueueTransitionPassResources(QVkCommandBuffer *cbD);
-    void recordPrimaryCommandBuffer(QVkCommandBuffer *cbD);
-    void trackedRegisterBuffer(QRhiPassResourceTracker *passResTracker,
-                               QVkBuffer *bufD,
-                               int slot,
-                               QRhiPassResourceTracker::BufferAccess access,
-                               QRhiPassResourceTracker::BufferStage stage);
-    void trackedRegisterTexture(QRhiPassResourceTracker *passResTracker,
-                                QVkTexture *texD,
-                                QRhiPassResourceTracker::TextureAccess access,
-                                QRhiPassResourceTracker::TextureStage stage);
-    void recordTransitionPassResources(QVkCommandBuffer *cbD, const QRhiPassResourceTracker &tracker);
-    void activateTextureRenderTarget(QVkCommandBuffer *cbD, QVkTextureRenderTarget *rtD);
-    void executeDeferredReleases(bool forced = false);
-    void finishActiveReadbacks(bool forced = false);
-
-    void setObjectName(uint64_t object, VkObjectType type, const QByteArray &name, int slot = -1);
-    void trackedBufferBarrier(QVkCommandBuffer *cbD, QVkBuffer *bufD, int slot,
-                              VkAccessFlags access, VkPipelineStageFlags stage);
-    void trackedImageBarrier(QVkCommandBuffer *cbD, QVkTexture *texD,
-                             VkImageLayout layout, VkAccessFlags access, VkPipelineStageFlags stage);
-    void depthStencilExplicitBarrier(QVkCommandBuffer *cbD, QVkRenderBuffer *rbD);
-    void subresourceBarrier(QVkCommandBuffer *cbD, VkImage image,
-                            VkImageLayout oldLayout, VkImageLayout newLayout,
-                            VkAccessFlags srcAccess, VkAccessFlags dstAccess,
-                            VkPipelineStageFlags srcStage, VkPipelineStageFlags dstStage,
-                            int startLayer, int layerCount,
-                            int startLevel, int levelCount);
-    void updateShaderResourceBindings(QRhiShaderResourceBindings *srb, int descSetIdx = -1);
-    void ensureCommandPoolForNewFrame();
-
-    QVulkanInstance *inst = nullptr;
-    QWindow *maybeWindow = nullptr;
-    QByteArrayList requestedDeviceExtensions;
-    bool importedDevice = false;
-    VkPhysicalDevice physDev = VK_NULL_HANDLE;
-    VkDevice dev = VK_NULL_HANDLE;
-    VkCommandPool cmdPool[QVK_FRAMES_IN_FLIGHT] = {};
-    quint32 gfxQueueFamilyIdx = 0;
-    quint32 gfxQueueIdx = 0;
-    VkQueue gfxQueue = VK_NULL_HANDLE;
-    quint32 timestampValidBits = 0;
-    bool importedAllocator = false;
-    QVkAllocator allocator = nullptr;
-    QVulkanFunctions *f = nullptr;
-    QVulkanDeviceFunctions *df = nullptr;
-    QRhi::Flags rhiFlags;
-    VkPhysicalDeviceFeatures physDevFeatures;
-    VkPhysicalDeviceProperties physDevProperties;
-    VkDeviceSize ubufAlign;
-    VkDeviceSize texbufAlign;
-    bool deviceLost = false;
-    bool releaseCachedResourcesCalledBeforeFrameStart = false;
-
-#ifdef VK_EXT_debug_utils
-    PFN_vkSetDebugUtilsObjectNameEXT vkSetDebugUtilsObjectNameEXT = nullptr;
-    PFN_vkCmdBeginDebugUtilsLabelEXT vkCmdBeginDebugUtilsLabelEXT = nullptr;
-    PFN_vkCmdEndDebugUtilsLabelEXT vkCmdEndDebugUtilsLabelEXT = nullptr;
-    PFN_vkCmdInsertDebugUtilsLabelEXT vkCmdInsertDebugUtilsLabelEXT = nullptr;
-#endif
-
-    PFN_vkCreateSwapchainKHR vkCreateSwapchainKHR = nullptr;
-    PFN_vkDestroySwapchainKHR vkDestroySwapchainKHR;
-    PFN_vkGetSwapchainImagesKHR vkGetSwapchainImagesKHR;
-    PFN_vkAcquireNextImageKHR vkAcquireNextImageKHR;
-    PFN_vkQueuePresentKHR vkQueuePresentKHR;
-    PFN_vkGetPhysicalDeviceSurfaceCapabilitiesKHR vkGetPhysicalDeviceSurfaceCapabilitiesKHR;
-    PFN_vkGetPhysicalDeviceSurfaceFormatsKHR vkGetPhysicalDeviceSurfaceFormatsKHR;
-    PFN_vkGetPhysicalDeviceSurfacePresentModesKHR vkGetPhysicalDeviceSurfacePresentModesKHR;
-
-    struct {
-        bool compute = false;
-        bool wideLines = false;
-        bool debugUtils = false;
-        bool vertexAttribDivisor = false;
-        bool texture3DSliceAs2D = false;
-        bool tessellation = false;
-        bool geometryShader = false;
-        bool nonFillPolygonMode = false;
-        QVersionNumber apiVersion;
-    } caps;
-
-    VkPipelineCache pipelineCache = VK_NULL_HANDLE;
-    struct DescriptorPoolData {
-        DescriptorPoolData() { }
-        DescriptorPoolData(VkDescriptorPool pool_)
-            : pool(pool_)
-        { }
-        VkDescriptorPool pool = VK_NULL_HANDLE;
-        int refCount = 0;
-        int allocedDescSets = 0;
-    };
-    QVarLengthArray<DescriptorPoolData, 8> descriptorPools;
-    QVarLengthArray<VkCommandBuffer, 4> freeSecondaryCbs[QVK_FRAMES_IN_FLIGHT];
-
-    VkQueryPool timestampQueryPool = VK_NULL_HANDLE;
-    QBitArray timestampQueryPoolMap;
-
-    VkFormat optimalDsFormat = VK_FORMAT_UNDEFINED;
-    QMatrix4x4 clipCorrectMatrix;
-
-    QVkSwapChain *currentSwapChain = nullptr;
-    QSet<QVkSwapChain *> swapchains;
-    QRhiVulkanNativeHandles nativeHandlesStruct;
-    QRhiDriverInfo driverInfoStruct;
-
-    struct OffscreenFrame {
-        OffscreenFrame(QRhiImplementation *rhi)
-        {
-            for (int i = 0; i < QVK_FRAMES_IN_FLIGHT; ++i)
-                cbWrapper[i] = new QVkCommandBuffer(rhi);
-        }
-        ~OffscreenFrame()
-        {
-            for (int i = 0; i < QVK_FRAMES_IN_FLIGHT; ++i)
-                delete cbWrapper[i];
-        }
-        bool active = false;
-        QVkCommandBuffer *cbWrapper[QVK_FRAMES_IN_FLIGHT];
-        VkFence cmdFence = VK_NULL_HANDLE;
-    } ofr;
-
-    struct TextureReadback {
-        int activeFrameSlot = -1;
-        QRhiReadbackDescription desc;
-        QRhiReadbackResult *result;
-        VkBuffer stagingBuf;
-        QVkAlloc stagingAlloc;
-        quint32 byteSize;
-        QSize pixelSize;
-        QRhiTexture::Format format;
-    };
-    QVarLengthArray<TextureReadback, 2> activeTextureReadbacks;
-    struct BufferReadback {
-        int activeFrameSlot = -1;
-        QRhiBufferReadbackResult *result;
-        quint32 byteSize;
-        VkBuffer stagingBuf;
-        QVkAlloc stagingAlloc;
-    };
-    QVarLengthArray<BufferReadback, 2> activeBufferReadbacks;
-
-    struct DeferredReleaseEntry {
-        enum Type {
-            Pipeline,
-            ShaderResourceBindings,
-            Buffer,
-            RenderBuffer,
-            Texture,
-            Sampler,
-            TextureRenderTarget,
-            RenderPass,
-            StagingBuffer,
-            SecondaryCommandBuffer
-        };
-        Type type;
-        int lastActiveFrameSlot; // -1 if not used otherwise 0..FRAMES_IN_FLIGHT-1
-        union {
-            struct {
-                VkPipeline pipeline;
-                VkPipelineLayout layout;
-            } pipelineState;
-            struct {
-                int poolIndex;
-                VkDescriptorSetLayout layout;
-            } shaderResourceBindings;
-            struct {
-                VkBuffer buffers[QVK_FRAMES_IN_FLIGHT];
-                QVkAlloc allocations[QVK_FRAMES_IN_FLIGHT];
-                VkBuffer stagingBuffers[QVK_FRAMES_IN_FLIGHT];
-                QVkAlloc stagingAllocations[QVK_FRAMES_IN_FLIGHT];
-            } buffer;
-            struct {
-                VkDeviceMemory memory;
-                VkImage image;
-                VkImageView imageView;
-            } renderBuffer;
-            struct {
-                VkImage image;
-                VkImageView imageView;
-                QVkAlloc allocation;
-                VkBuffer stagingBuffers[QVK_FRAMES_IN_FLIGHT];
-                QVkAlloc stagingAllocations[QVK_FRAMES_IN_FLIGHT];
-                VkImageView extraImageViews[QRhi::MAX_MIP_LEVELS];
-            } texture;
-            struct {
-                VkSampler sampler;
-            } sampler;
-            struct {
-                VkFramebuffer fb;
-                VkImageView rtv[QVkRenderTargetData::MAX_COLOR_ATTACHMENTS];
-                VkImageView resrtv[QVkRenderTargetData::MAX_COLOR_ATTACHMENTS];
-            } textureRenderTarget;
-            struct {
-                VkRenderPass rp;
-            } renderPass;
-            struct {
-                VkBuffer stagingBuffer;
-                QVkAlloc stagingAllocation;
-            } stagingBuffer;
-            struct {
-                VkCommandBuffer cb;
-            } secondaryCommandBuffer;
-        };
-    };
-    QList<DeferredReleaseEntry> releaseQueue;
-};
-
-Q_DECLARE_TYPEINFO(QRhiVulkan::DescriptorPoolData, Q_RELOCATABLE_TYPE);
-Q_DECLARE_TYPEINFO(QRhiVulkan::DeferredReleaseEntry, Q_RELOCATABLE_TYPE);
-Q_DECLARE_TYPEINFO(QRhiVulkan::TextureReadback, Q_RELOCATABLE_TYPE);
-Q_DECLARE_TYPEINFO(QRhiVulkan::BufferReadback, Q_RELOCATABLE_TYPE);
-
-QT_END_NAMESPACE
-
-#endif
diff --git a/src/gui/rhi/qrhivulkanext_p.h b/src/gui/rhi/qrhivulkanext_p.h
deleted file mode 100644
index 02b34694..00000000
--- a/src/gui/rhi/qrhivulkanext_p.h
+++ /dev/null
@@ -1,48 +0,0 @@
-// Copyright (C) 2018 The Qt Company Ltd.
-// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
-
-#ifndef QRHIVULKANEXT_P_H
-#define QRHIVULKANEXT_P_H
-
-//
-//  W A R N I N G
-//  -------------
-//
-// This file is not part of the Qt API.  It exists purely as an
-// implementation detail.  This header file may change from version to
-// version without notice, or even be removed.
-//
-// We mean it.
-//
-
-#include "qrhivulkan_p.h"
-
-QT_BEGIN_NAMESPACE
-
-#ifndef VK_EXT_vertex_attribute_divisor
-#define VK_EXT_vertex_attribute_divisor 1
-#define VK_EXT_VERTEX_ATTRIBUTE_DIVISOR_SPEC_VERSION 2
-#define VK_EXT_VERTEX_ATTRIBUTE_DIVISOR_EXTENSION_NAME "VK_EXT_vertex_attribute_divisor"
-
-typedef struct VkPhysicalDeviceVertexAttributeDivisorPropertiesEXT {
-    VkStructureType    sType;
-    void*              pNext;
-    uint32_t           maxVertexAttribDivisor;
-} VkPhysicalDeviceVertexAttributeDivisorPropertiesEXT;
-
-typedef struct VkVertexInputBindingDivisorDescriptionEXT {
-    uint32_t    binding;
-    uint32_t    divisor;
-} VkVertexInputBindingDivisorDescriptionEXT;
-
-typedef struct VkPipelineVertexInputDivisorStateCreateInfoEXT {
-    VkStructureType                                     sType;
-    const void*                                         pNext;
-    uint32_t                                            vertexBindingDivisorCount;
-    const VkVertexInputBindingDivisorDescriptionEXT*    pVertexBindingDivisors;
-} VkPipelineVertexInputDivisorStateCreateInfoEXT;
-#endif // VK_EXT_vertex_attribute_divisor
-
-QT_END_NAMESPACE
-
-#endif
diff --git a/src/gui/rhi/qshader.cpp b/src/gui/rhi/qshader.cpp
index c35445f7..02d86907 100644
--- a/src/gui/rhi/qshader.cpp
+++ b/src/gui/rhi/qshader.cpp
@@ -1,7 +1,7 @@
-// Copyright (C) 2019 The Qt Company Ltd.
+// Copyright (C) 2023 The Qt Company Ltd.
 // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
 
-#include "qshader_p_p.h"
+#include "qshader_p.h"
 #include <QDataStream>
 #include <QBuffer>
 
@@ -9,8 +9,9 @@ QT_BEGIN_NAMESPACE
 
 /*!
     \class QShader
-    \internal
+    \ingroup painting-3D
     \inmodule QtGui
+    \since 6.6
 
     \brief Contains multiple versions of a shader translated to multiple shading languages,
     together with reflection metadata.
@@ -21,6 +22,16 @@ QT_BEGIN_NAMESPACE
     as, Vulkan, Metal, Direct3D, and OpenGL, take QShader as their input
     whenever a shader needs to be specified.
 
+    \warning The QRhi family of classes in the Qt Gui module, including QShader
+    and QShaderDescription, offer limited compatibility guarantees. There are
+    no source or binary compatibility guarantees for these classes, meaning the
+    API is only guaranteed to work with the Qt version the application was
+    developed against. Source incompatible changes are however aimed to be kept
+    at a minimum and will only be made in minor releases (6.7, 6.8, and so on).
+    To use these classes in an application, link to
+    \c{Qt::GuiPrivate} (if using CMake), and include the headers with the \c
+    rhi prefix, for example \c{#include <rhi/qshader.h>}.
+
     A QShader instance is empty and thus invalid by default. To get a useful
     instance, the two typical methods are:
 
@@ -68,8 +79,9 @@ QT_BEGIN_NAMESPACE
     can be returned or passed by value. Detach happens implicitly when calling
     a setter.
 
-    For reference, QRhi expects that a QShader suitable for all its
-    backends contains at least the following:
+    For reference, a typical, portable QRhi expects that a QShader suitable for
+    all its backends contains at least the following. (this excludes support
+    for core profile OpenGL contexts, add GLSL 150 or newer for that)
 
     \list
 
@@ -77,11 +89,11 @@ QT_BEGIN_NAMESPACE
 
     \li GLSL/ES 100 source code suitable for OpenGL ES 2.0 or newer
 
-    \li GLSL 120 source code suitable for OpenGL 2.1
+    \li GLSL 120 source code suitable for OpenGL 2.1 or newer
 
-    \li HLSL Shader Model 5.0 source code or the corresponding DXBC bytecode suitable for Direct3D 11
+    \li HLSL Shader Model 5.0 source code or the corresponding DXBC bytecode suitable for Direct3D 11/12
 
-    \li Metal Shading Language 1.2 source code or the corresponding bytecode suitable for Metal
+    \li Metal Shading Language 1.2 source code or the corresponding bytecode suitable for Metal 1.2 or newer
 
     \endlist
 
@@ -102,8 +114,8 @@ QT_BEGIN_NAMESPACE
 
 /*!
     \class QShaderVersion
-    \internal
     \inmodule QtGui
+    \since 6.6
 
     \brief Specifies the shading language version.
 
@@ -128,6 +140,9 @@ QT_BEGIN_NAMESPACE
 
     A default constructed QShaderVersion contains a version of 100 and no
     flags set.
+
+    \note This is a RHI API with limited compatibility guarantees, see \l QShader
+    for details.
  */
 
 /*!
@@ -140,13 +155,16 @@ QT_BEGIN_NAMESPACE
 
 /*!
     \class QShaderKey
-    \internal
     \inmodule QtGui
+    \since 6.6
 
     \brief Specifies the shading language, the version with flags, and the variant.
 
     A default constructed QShaderKey has source set to SpirvShader and
     sourceVersion set to 100. sourceVariant defaults to StandardShader.
+
+    \note This is a RHI API with limited compatibility guarantees, see \l QShader
+    for details.
  */
 
 /*!
@@ -195,15 +213,40 @@ QT_BEGIN_NAMESPACE
     the need for three dedicated variants.
  */
 
+/*!
+    \enum QShader::SerializedFormatVersion
+    Describes the desired output format when serializing the QShader.
+
+    The default value for the \c version argument of serialized() is \c Latest.
+    This is sufficient in the vast majority of cases. Specifying another value
+    is needed only when the intention is to generate serialized data that can
+    be loaded by earlier Qt versions. For example, the \c qsb tool uses these
+    enum values when the \c{--qsbversion} command-line argument is given.
+
+    \note Targeting earlier versions will make certain features disfunctional
+    with the generated asset. This is not an issue when using the asset with
+    the specified, older Qt version, given that that Qt version does not have
+    the newer features in newer Qt versions that rely on additional data
+    generated in the QShader and the serialized data stream, but may become a
+    problem if the generated asset is then used with a newer Qt version.
+
+    \value Latest The current Qt version
+    \value Qt_6_5 Qt 6.5
+    \value Qt_6_4 Qt 6.4
+ */
+
 /*!
     \class QShaderCode
-    \internal
     \inmodule QtGui
+    \since 6.6
 
     \brief Contains source or binary code for a shader and additional metadata.
 
     When shader() is empty after retrieving a QShaderCode instance from
     QShader, it indicates no shader code was found for the requested key.
+
+    \note This is a RHI API with limited compatibility guarantees, see \l QShader
+    for details.
  */
 
 /*!
@@ -226,7 +269,7 @@ void QShader::detach()
 }
 
 /*!
-    \internal
+    Constructs a copy of \a other.
  */
 QShader::QShader(const QShader &other)
     : d(other.d)
@@ -236,7 +279,7 @@ QShader::QShader(const QShader &other)
 }
 
 /*!
-    \internal
+    Assigns \a other to this object.
  */
 QShader &QShader::operator=(const QShader &other)
 {
@@ -366,7 +409,11 @@ static void writeShaderKey(QDataStream *ds, const QShaderKey &k)
     QShader, suitable for writing to files or other I/O devices.
 
     By default the latest serialization format is used. Use \a version
-    parameter to serialize for a compatibility Qt version.
+    parameter to serialize for a compatibility Qt version. Only when it is
+    known that the generated data stream must be made compatible with an older
+    Qt version at the expense of making it incompatible with features
+    introduced since that Qt version, should another value (for example,
+    \l{SerializedFormatVersion}{Qt_6_5} for Qt 6.5) be used.
 
     \sa fromSerialized()
  */
@@ -455,6 +502,9 @@ static void readShaderKey(QDataStream *ds, QShaderKey *k)
 /*!
     Creates a new QShader instance from the given \a data.
 
+    If \a data cannot be deserialized successfully, the result is a default
+    constructed QShader for which isValid() returns \c false.
+
     \sa serialized()
   */
 QShader QShader::fromSerialized(const QByteArray &data)
@@ -474,6 +524,7 @@ QShader QShader::fromSerialized(const QByteArray &data)
     ds >> intVal;
     d->qsbVersion = intVal;
     if (d->qsbVersion != QShaderPrivate::QSB_VERSION
+            && d->qsbVersion != QShaderPrivate::QSB_VERSION_WITHOUT_INPUT_OUTPUT_INTERFACE_BLOCKS
             && d->qsbVersion != QShaderPrivate::QSB_VERSION_WITHOUT_EXTENDED_STORAGE_BUFFER_INFO
             && d->qsbVersion != QShaderPrivate::QSB_VERSION_WITHOUT_NATIVE_SHADER_INFO
             && d->qsbVersion != QShaderPrivate::QSB_VERSION_WITHOUT_SEPARATE_IMAGES_AND_SAMPLERS
@@ -576,16 +627,79 @@ QShader QShader::fromSerialized(const QByteArray &data)
     return bs;
 }
 
+/*!
+    \fn QShaderVersion::QShaderVersion() = default
+ */
+
+/*!
+    Constructs a new QShaderVersion with version \a v and flags \a f.
+ */
 QShaderVersion::QShaderVersion(int v, Flags f)
     : m_version(v), m_flags(f)
 {
 }
 
+/*!
+    \fn int QShaderVersion::version() const
+    \return the version.
+ */
+
+/*!
+    \fn void QShaderVersion::setVersion(int v)
+    Sets the shading language version to \a v.
+ */
+
+/*!
+    \fn QShaderVersion::Flags QShaderVersion::flags() const
+    \return the flags.
+ */
+
+/*!
+    \fn void QShaderVersion::setFlags(Flags f)
+    Sets the flags \a f.
+ */
+
+/*!
+    \fn QShaderCode::QShaderCode() = default
+ */
+
+/*!
+    Constructs a new QShaderCode with the specified shader source \a code and
+    \a entry point name.
+ */
 QShaderCode::QShaderCode(const QByteArray &code, const QByteArray &entry)
     : m_shader(code), m_entryPoint(entry)
 {
 }
 
+/*!
+    \fn QByteArray QShaderCode::shader() const
+    \return the shader source or bytecode.
+ */
+
+/*!
+    \fn void QShaderCode::setShader(const QByteArray &code)
+    Sets the shader source or byte \a code.
+ */
+
+/*!
+    \fn QByteArray QShaderCode::entryPoint() const
+    \return the entry point name.
+ */
+
+/*!
+    \fn void QShaderCode::setEntryPoint(const QByteArray &entry)
+    Sets the \a entry point name.
+ */
+
+/*!
+    \fn QShaderKey::QShaderKey() = default
+ */
+
+/*!
+    Constructs a new QShaderKey with shader type \a s, version \a sver, and
+    variant \a svar.
+ */
 QShaderKey::QShaderKey(QShader::Source s,
                        const QShaderVersion &sver,
                        QShader::Variant svar)
@@ -595,6 +709,36 @@ QShaderKey::QShaderKey(QShader::Source s,
 {
 }
 
+/*!
+    \fn QShader::Source QShaderKey::source() const
+    \return the shader type.
+ */
+
+/*!
+    \fn void QShaderKey::setSource(QShader::Source s)
+    Sets the shader type \a s.
+ */
+
+/*!
+    \fn QShaderVersion QShaderKey::sourceVersion() const
+    \return the shading language version.
+ */
+
+/*!
+    \fn void QShaderKey::setSourceVersion(const QShaderVersion &sver)
+    Sets the shading language version \a sver.
+ */
+
+/*!
+    \fn QShader::Variant QShaderKey::sourceVariant() const
+    \return the type of the variant to use.
+ */
+
+/*!
+    \fn void QShaderKey::setSourceVariant(QShader::Variant svar)
+    Sets the type of variant to use to \a svar.
+ */
+
 /*!
     Returns \c true if the two QShader objects \a lhs and \a rhs are equal,
     meaning they are for the same stage with matching sets of shader source or
@@ -613,10 +757,9 @@ bool operator==(const QShader &lhs, const QShader &rhs) noexcept
 }
 
 /*!
-    \internal
     \fn bool operator!=(const QShader &lhs, const QShader &rhs)
 
-    Returns \c false if the values in the two QShader objects \a a and \a b
+    Returns \c false if the values in the two QShader objects \a lhs and \a rhs
     are equal; otherwise returns \c true.
 
     \relates QShader
@@ -659,6 +802,8 @@ size_t qHash(const QShaderVersion &s, size_t seed) noexcept
 #endif
 
 /*!
+    \return true if \a lhs is smaller than \a rhs.
+
     Establishes a sorting order between the two QShaderVersion \a lhs and \a rhs.
 
     \relates QShaderVersion
@@ -675,11 +820,10 @@ bool operator<(const QShaderVersion &lhs, const QShaderVersion &rhs) noexcept
 }
 
 /*!
-    \internal
     \fn bool operator!=(const QShaderVersion &lhs, const QShaderVersion &rhs)
 
-    Returns \c false if the values in the two QShaderVersion objects \a a
-    and \a b are equal; otherwise returns \c true.
+    Returns \c false if the values in the two QShaderVersion objects \a lhs
+    and \a rhs are equal; otherwise returns \c true.
 
     \relates QShaderVersion
  */
@@ -696,6 +840,8 @@ bool operator==(const QShaderKey &lhs, const QShaderKey &rhs) noexcept
 }
 
 /*!
+    \return true if \a lhs is smaller than \a rhs.
+
     Establishes a sorting order between the two keys \a lhs and \a rhs.
 
     \relates QShaderKey
@@ -718,11 +864,10 @@ bool operator<(const QShaderKey &lhs, const QShaderKey &rhs) noexcept
 }
 
 /*!
-    \internal
     \fn bool operator!=(const QShaderKey &lhs, const QShaderKey &rhs)
 
-    Returns \c false if the values in the two QShaderKey objects \a a
-    and \a b are equal; otherwise returns \c true.
+    Returns \c false if the values in the two QShaderKey objects \a lhs
+    and \a rhs are equal; otherwise returns \c true.
 
     \relates QShaderKey
  */
@@ -752,11 +897,10 @@ bool operator==(const QShaderCode &lhs, const QShaderCode &rhs) noexcept
 }
 
 /*!
-    \internal
     \fn bool operator!=(const QShaderCode &lhs, const QShaderCode &rhs)
 
-    Returns \c false if the values in the two QShaderCode objects \a a
-    and \a b are equal; otherwise returns \c true.
+    Returns \c false if the values in the two QShaderCode objects \a lhs
+    and \a rhs are equal; otherwise returns \c true.
 
     \relates QShaderCode
  */
@@ -894,6 +1038,8 @@ void QShader::removeResourceBindingMap(const QShaderKey &key)
 
 /*!
     \struct QShader::SeparateToCombinedImageSamplerMapping
+    \inmodule QtGui
+    \brief Mapping metadata for sampler uniforms.
 
     Describes a mapping from a traditional combined image sampler uniform to
     binding points for a separate texture and sampler.
@@ -903,8 +1049,23 @@ void QShader::removeResourceBindingMap(const QShaderKey &key)
     contains a \c sampler2D (or sampler3D, etc.) uniform with the name of
     \c{_54} which corresponds to two separate resource bindings (\c 1 and \c 2)
     in the original shader.
+
+    \note This is a RHI API with limited compatibility guarantees, see \l QShader
+    for details.
  */
 
+/*!
+    \variable QShader::SeparateToCombinedImageSamplerMapping::combinedSamplerName
+*/
+
+/*!
+    \variable QShader::SeparateToCombinedImageSamplerMapping::textureBinding
+*/
+
+/*!
+    \variable QShader::SeparateToCombinedImageSamplerMapping::samplerBinding
+*/
+
 /*!
     \return the combined image sampler mapping list for \a key, or an empty
     list if there is no data available for \a key, for example because such a
@@ -952,6 +1113,8 @@ void QShader::removeSeparateToCombinedImageSamplerMappingList(const QShaderKey &
 
 /*!
     \struct QShader::NativeShaderInfo
+    \inmodule QtGui
+    \brief Additional metadata about the native shader code.
 
     Describes information about the native shader code, if applicable. This
     becomes relevant with certain shader languages for certain shader stages,
@@ -968,8 +1131,19 @@ void QShader::removeSeparateToCombinedImageSamplerMappingList(const QShaderKey &
     not be present at all if per-patch output variables were not used. The fact
     that the shader code relies on such a buffer present can be indicated by
     the data in this struct.
+
+    \note This is a RHI API with limited compatibility guarantees, see \l QShader
+    for details.
  */
 
+/*!
+    \variable QShader::NativeShaderInfo::flags
+*/
+
+/*!
+    \variable QShader::NativeShaderInfo::extraBufferBindings
+*/
+
 /*!
     \return the native shader info struct for \a key, or an empty object if
     there is no data available for \a key, for example because such a mapping
diff --git a/src/gui/rhi/qshader.h b/src/gui/rhi/qshader.h
new file mode 100644
index 00000000..0b520225
--- /dev/null
+++ b/src/gui/rhi/qshader.h
@@ -0,0 +1,237 @@
+// Copyright (C) 2023 The Qt Company Ltd.
+// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
+
+#ifndef QSHADER_H
+#define QSHADER_H
+
+//
+//  W A R N I N G
+//  -------------
+//
+// This file is part of the RHI API, with limited compatibility guarantees.
+// Usage of this API may make your code source and binary incompatible with
+// future versions of Qt.
+//
+
+#include <QtGui/qtguiglobal.h>
+#include <QtCore/qhash.h>
+#include <QtCore/qmap.h>
+#include <rhi/qshaderdescription.h>
+
+QT_BEGIN_NAMESPACE
+
+struct QShaderPrivate;
+class QShaderKey;
+
+#ifdef Q_OS_INTEGRITY
+  class QShaderVersion;
+  size_t qHash(const QShaderVersion &, size_t = 0) noexcept;
+#endif
+
+class Q_GUI_EXPORT QShaderVersion
+{
+public:
+    enum Flag {
+        GlslEs = 0x01
+    };
+    Q_DECLARE_FLAGS(Flags, Flag)
+
+    QShaderVersion() = default;
+    QShaderVersion(int v, Flags f = Flags());
+
+    int version() const { return m_version; }
+    void setVersion(int v) { m_version = v; }
+
+    Flags flags() const { return m_flags; }
+    void setFlags(Flags f) { m_flags = f; }
+
+private:
+    int m_version = 100;
+    Flags m_flags;
+};
+
+Q_DECLARE_OPERATORS_FOR_FLAGS(QShaderVersion::Flags)
+Q_DECLARE_TYPEINFO(QShaderVersion, Q_RELOCATABLE_TYPE);
+
+class QShaderCode;
+Q_GUI_EXPORT size_t qHash(const QShaderCode &, size_t = 0) noexcept;
+
+class Q_GUI_EXPORT QShaderCode
+{
+public:
+    QShaderCode() = default;
+    QShaderCode(const QByteArray &code, const QByteArray &entry = QByteArray());
+
+    QByteArray shader() const { return m_shader; }
+    void setShader(const QByteArray &code) { m_shader = code; }
+
+    QByteArray entryPoint() const { return m_entryPoint; }
+    void setEntryPoint(const QByteArray &entry) { m_entryPoint = entry; }
+
+private:
+    friend Q_GUI_EXPORT size_t qHash(const QShaderCode &, size_t) noexcept;
+
+    QByteArray m_shader;
+    QByteArray m_entryPoint;
+};
+
+Q_DECLARE_TYPEINFO(QShaderCode, Q_RELOCATABLE_TYPE);
+
+class Q_GUI_EXPORT QShader
+{
+public:
+    enum Stage {
+        VertexStage = 0,
+        TessellationControlStage,
+        TessellationEvaluationStage,
+        GeometryStage,
+        FragmentStage,
+        ComputeStage
+    };
+
+    enum Source {
+        SpirvShader = 0,
+        GlslShader,
+        HlslShader,
+        DxbcShader, // fxc
+        MslShader,
+        DxilShader, // dxc
+        MetalLibShader, // xcrun metal + xcrun metallib
+        WgslShader
+    };
+
+    enum Variant {
+        StandardShader = 0,
+        BatchableVertexShader,
+        UInt16IndexedVertexAsComputeShader,
+        UInt32IndexedVertexAsComputeShader,
+        NonIndexedVertexAsComputeShader
+    };
+
+    enum class SerializedFormatVersion {
+        Latest = 0,
+        Qt_6_5,
+        Qt_6_4
+    };
+
+    QShader();
+    QShader(const QShader &other);
+    QShader &operator=(const QShader &other);
+    ~QShader();
+    void detach();
+
+    bool isValid() const;
+
+    Stage stage() const;
+    void setStage(Stage stage);
+
+    QShaderDescription description() const;
+    void setDescription(const QShaderDescription &desc);
+
+    QList<QShaderKey> availableShaders() const;
+    QShaderCode shader(const QShaderKey &key) const;
+    void setShader(const QShaderKey &key, const QShaderCode &shader);
+    void removeShader(const QShaderKey &key);
+
+    QByteArray serialized(SerializedFormatVersion version = SerializedFormatVersion::Latest) const;
+    static QShader fromSerialized(const QByteArray &data);
+
+    using NativeResourceBindingMap = QMap<int, QPair<int, int> >; // binding -> native_binding[, native_binding]
+    NativeResourceBindingMap nativeResourceBindingMap(const QShaderKey &key) const;
+    void setResourceBindingMap(const QShaderKey &key, const NativeResourceBindingMap &map);
+    void removeResourceBindingMap(const QShaderKey &key);
+
+    struct SeparateToCombinedImageSamplerMapping {
+        QByteArray combinedSamplerName;
+        int textureBinding;
+        int samplerBinding;
+    };
+    using SeparateToCombinedImageSamplerMappingList = QList<SeparateToCombinedImageSamplerMapping>;
+    SeparateToCombinedImageSamplerMappingList separateToCombinedImageSamplerMappingList(const QShaderKey &key) const;
+    void setSeparateToCombinedImageSamplerMappingList(const QShaderKey &key,
+                                                      const SeparateToCombinedImageSamplerMappingList &list);
+    void removeSeparateToCombinedImageSamplerMappingList(const QShaderKey &key);
+
+    struct NativeShaderInfo {
+        int flags = 0;
+        QMap<int, int> extraBufferBindings;
+    };
+    NativeShaderInfo nativeShaderInfo(const QShaderKey &key) const;
+    void setNativeShaderInfo(const QShaderKey &key, const NativeShaderInfo &info);
+    void removeNativeShaderInfo(const QShaderKey &key);
+
+private:
+    QShaderPrivate *d;
+    friend struct QShaderPrivate;
+    friend Q_GUI_EXPORT bool operator==(const QShader &, const QShader &) noexcept;
+    friend Q_GUI_EXPORT size_t qHash(const QShader &, size_t) noexcept;
+#ifndef QT_NO_DEBUG_STREAM
+    friend Q_GUI_EXPORT QDebug operator<<(QDebug, const QShader &);
+#endif
+};
+
+class Q_GUI_EXPORT QShaderKey
+{
+public:
+    QShaderKey() = default;
+    QShaderKey(QShader::Source s,
+               const QShaderVersion &sver,
+               QShader::Variant svar = QShader::StandardShader);
+
+    QShader::Source source() const { return m_source; }
+    void setSource(QShader::Source s) { m_source = s; }
+
+    QShaderVersion sourceVersion() const { return m_sourceVersion; }
+    void setSourceVersion(const QShaderVersion &sver) { m_sourceVersion = sver; }
+
+    QShader::Variant sourceVariant() const { return m_sourceVariant; }
+    void setSourceVariant(QShader::Variant svar) { m_sourceVariant = svar; }
+
+private:
+    QShader::Source m_source = QShader::SpirvShader;
+    QShaderVersion m_sourceVersion;
+    QShader::Variant m_sourceVariant = QShader::StandardShader;
+};
+
+Q_DECLARE_TYPEINFO(QShaderKey, Q_RELOCATABLE_TYPE);
+
+Q_GUI_EXPORT bool operator==(const QShader &lhs, const QShader &rhs) noexcept;
+Q_GUI_EXPORT size_t qHash(const QShader &s, size_t seed = 0) noexcept;
+
+inline bool operator!=(const QShader &lhs, const QShader &rhs) noexcept
+{
+    return !(lhs == rhs);
+}
+
+Q_GUI_EXPORT bool operator==(const QShaderVersion &lhs, const QShaderVersion &rhs) noexcept;
+Q_GUI_EXPORT bool operator<(const QShaderVersion &lhs, const QShaderVersion &rhs) noexcept;
+Q_GUI_EXPORT bool operator==(const QShaderKey &lhs, const QShaderKey &rhs) noexcept;
+Q_GUI_EXPORT bool operator<(const QShaderKey &lhs, const QShaderKey &rhs) noexcept;
+Q_GUI_EXPORT bool operator==(const QShaderCode &lhs, const QShaderCode &rhs) noexcept;
+
+inline bool operator!=(const QShaderVersion &lhs, const QShaderVersion &rhs) noexcept
+{
+    return !(lhs == rhs);
+}
+
+inline bool operator!=(const QShaderKey &lhs, const QShaderKey &rhs) noexcept
+{
+    return !(lhs == rhs);
+}
+
+inline bool operator!=(const QShaderCode &lhs, const QShaderCode &rhs) noexcept
+{
+    return !(lhs == rhs);
+}
+
+Q_GUI_EXPORT size_t qHash(const QShaderKey &k, size_t seed = 0) noexcept;
+
+#ifndef QT_NO_DEBUG_STREAM
+Q_GUI_EXPORT QDebug operator<<(QDebug, const QShader &);
+Q_GUI_EXPORT QDebug operator<<(QDebug dbg, const QShaderKey &k);
+Q_GUI_EXPORT QDebug operator<<(QDebug dbg, const QShaderVersion &v);
+#endif
+
+QT_END_NAMESPACE
+
+#endif
diff --git a/src/gui/rhi/qshader_p.h b/src/gui/rhi/qshader_p.h
index f85b075a..a2df33d9 100644
--- a/src/gui/rhi/qshader_p.h
+++ b/src/gui/rhi/qshader_p.h
@@ -1,4 +1,4 @@
-// Copyright (C) 2019 The Qt Company Ltd.
+// Copyright (C) 2023 The Qt Company Ltd.
 // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
 
 #ifndef QSHADER_P_H
@@ -15,225 +15,76 @@
 // We mean it.
 //
 
-#include <QtGui/qtguiglobal.h>
-#include <QtCore/qhash.h>
-#include <QtCore/qmap.h>
-#include <private/qshaderdescription_p.h>
+#include <rhi/qshader.h>
+#include <QtCore/QAtomicInt>
+#include <QtCore/QMap>
+#include <QtCore/QDebug>
 
 QT_BEGIN_NAMESPACE
 
-struct QShaderPrivate;
-class QShaderKey;
-
-#ifdef Q_OS_INTEGRITY
-  class QShaderVersion;
-  size_t qHash(const QShaderVersion &, size_t = 0) noexcept;
-#endif
-
-class Q_GUI_EXPORT QShaderVersion
+struct Q_GUI_EXPORT QShaderPrivate
 {
-public:
-    enum Flag {
-        GlslEs = 0x01
+    static const int QSB_VERSION = 9;
+    static const int QSB_VERSION_WITHOUT_INPUT_OUTPUT_INTERFACE_BLOCKS = 8;
+    static const int QSB_VERSION_WITHOUT_EXTENDED_STORAGE_BUFFER_INFO = 7;
+    static const int QSB_VERSION_WITHOUT_NATIVE_SHADER_INFO = 6;
+    static const int QSB_VERSION_WITHOUT_SEPARATE_IMAGES_AND_SAMPLERS = 5;
+    static const int QSB_VERSION_WITHOUT_VAR_ARRAYDIMS = 4;
+    static const int QSB_VERSION_WITH_CBOR = 3;
+    static const int QSB_VERSION_WITH_BINARY_JSON = 2;
+    static const int QSB_VERSION_WITHOUT_BINDINGS = 1;
+
+    enum MslNativeShaderInfoExtraBufferBindings {
+        MslTessVertIndicesBufferBinding = 0,
+        MslTessVertTescOutputBufferBinding,
+        MslTessTescTessLevelBufferBinding,
+        MslTessTescPatchOutputBufferBinding,
+        MslTessTescParamsBufferBinding,
+        MslTessTescInputBufferBinding,
+        MslBufferSizeBufferBinding
     };
-    Q_DECLARE_FLAGS(Flags, Flag)
 
-    QShaderVersion() = default;
-    QShaderVersion(int v, Flags f = Flags());
+    QShaderPrivate()
+        : ref(1)
+    {
+    }
 
-    int version() const { return m_version; }
-    void setVersion(int v) { m_version = v; }
+    QShaderPrivate(const QShaderPrivate &other)
+        : ref(1),
+          qsbVersion(other.qsbVersion),
+          stage(other.stage),
+          desc(other.desc),
+          shaders(other.shaders),
+          bindings(other.bindings),
+          combinedImageMap(other.combinedImageMap),
+          nativeShaderInfoMap(other.nativeShaderInfoMap)
+    {
+    }
 
-    Flags flags() const { return m_flags; }
-    void setFlags(Flags f) { m_flags = f; }
+    static QShaderPrivate *get(QShader *s) { return s->d; }
+    static const QShaderPrivate *get(const QShader *s) { return s->d; }
+    static int qtQsbVersion(QShader::SerializedFormatVersion qtVersion) {
+        switch (qtVersion) {
+        case QShader::SerializedFormatVersion::Qt_6_4:
+            return (QShaderPrivate::QSB_VERSION_WITHOUT_SEPARATE_IMAGES_AND_SAMPLERS + 1);
+        case QShader::SerializedFormatVersion::Qt_6_5:
+            return (QShaderPrivate::QSB_VERSION_WITHOUT_EXTENDED_STORAGE_BUFFER_INFO + 1);
+        default:
+            return QShaderPrivate::QSB_VERSION;
+        }
+    }
 
-private:
-    int m_version = 100;
-    Flags m_flags;
+    QAtomicInt ref;
+    int qsbVersion = QSB_VERSION;
+    QShader::Stage stage = QShader::VertexStage;
+    QShaderDescription desc;
+    // QMap not QHash because we need to be able to iterate based on sorted keys
+    QMap<QShaderKey, QShaderCode> shaders;
+    QMap<QShaderKey, QShader::NativeResourceBindingMap> bindings;
+    QMap<QShaderKey, QShader::SeparateToCombinedImageSamplerMappingList> combinedImageMap;
+    QMap<QShaderKey, QShader::NativeShaderInfo> nativeShaderInfoMap;
 };
 
-Q_DECLARE_OPERATORS_FOR_FLAGS(QShaderVersion::Flags)
-Q_DECLARE_TYPEINFO(QShaderVersion, Q_RELOCATABLE_TYPE);
-
-class QShaderCode;
-Q_GUI_EXPORT size_t qHash(const QShaderCode &, size_t = 0) noexcept;
-
-class Q_GUI_EXPORT QShaderCode
-{
-public:
-    QShaderCode() = default;
-    QShaderCode(const QByteArray &code, const QByteArray &entry = QByteArray());
-
-    QByteArray shader() const { return m_shader; }
-    void setShader(const QByteArray &code) { m_shader = code; }
-
-    QByteArray entryPoint() const { return m_entryPoint; }
-    void setEntryPoint(const QByteArray &entry) { m_entryPoint = entry; }
-
-private:
-    friend Q_GUI_EXPORT size_t qHash(const QShaderCode &, size_t) noexcept;
-
-    QByteArray m_shader;
-    QByteArray m_entryPoint;
-};
-
-Q_DECLARE_TYPEINFO(QShaderCode, Q_RELOCATABLE_TYPE);
-
-class Q_GUI_EXPORT QShader
-{
-public:
-    enum Stage {
-        VertexStage = 0,
-        TessellationControlStage,
-        TessellationEvaluationStage,
-        GeometryStage,
-        FragmentStage,
-        ComputeStage
-    };
-
-    enum Source {
-        SpirvShader = 0,
-        GlslShader,
-        HlslShader,
-        DxbcShader, // fxc
-        MslShader,
-        DxilShader, // dxc
-        MetalLibShader, // xcrun metal + xcrun metallib
-        WgslShader
-    };
-
-    enum Variant {
-        StandardShader = 0,
-        BatchableVertexShader,
-        UInt16IndexedVertexAsComputeShader,
-        UInt32IndexedVertexAsComputeShader,
-        NonIndexedVertexAsComputeShader
-    };
-
-    enum class SerializedFormatVersion {
-        Latest = 0,
-        Qt_6_5,
-        Qt_6_4
-    };
-
-    QShader();
-    QShader(const QShader &other);
-    QShader &operator=(const QShader &other);
-    ~QShader();
-    void detach();
-
-    bool isValid() const;
-
-    Stage stage() const;
-    void setStage(Stage stage);
-
-    QShaderDescription description() const;
-    void setDescription(const QShaderDescription &desc);
-
-    QList<QShaderKey> availableShaders() const;
-    QShaderCode shader(const QShaderKey &key) const;
-    void setShader(const QShaderKey &key, const QShaderCode &shader);
-    void removeShader(const QShaderKey &key);
-
-    QByteArray serialized(SerializedFormatVersion version = SerializedFormatVersion::Latest) const;
-    static QShader fromSerialized(const QByteArray &data);
-
-    using NativeResourceBindingMap = QMap<int, QPair<int, int> >; // binding -> native_binding[, native_binding]
-    NativeResourceBindingMap nativeResourceBindingMap(const QShaderKey &key) const;
-    void setResourceBindingMap(const QShaderKey &key, const NativeResourceBindingMap &map);
-    void removeResourceBindingMap(const QShaderKey &key);
-
-    struct SeparateToCombinedImageSamplerMapping {
-        QByteArray combinedSamplerName;
-        int textureBinding;
-        int samplerBinding;
-    };
-    using SeparateToCombinedImageSamplerMappingList = QList<SeparateToCombinedImageSamplerMapping>;
-    SeparateToCombinedImageSamplerMappingList separateToCombinedImageSamplerMappingList(const QShaderKey &key) const;
-    void setSeparateToCombinedImageSamplerMappingList(const QShaderKey &key,
-                                                      const SeparateToCombinedImageSamplerMappingList &list);
-    void removeSeparateToCombinedImageSamplerMappingList(const QShaderKey &key);
-
-    struct NativeShaderInfo {
-        int flags = 0;
-        QMap<int, int> extraBufferBindings;
-    };
-    NativeShaderInfo nativeShaderInfo(const QShaderKey &key) const;
-    void setNativeShaderInfo(const QShaderKey &key, const NativeShaderInfo &info);
-    void removeNativeShaderInfo(const QShaderKey &key);
-
-private:
-    QShaderPrivate *d;
-    friend struct QShaderPrivate;
-    friend Q_GUI_EXPORT bool operator==(const QShader &, const QShader &) noexcept;
-    friend Q_GUI_EXPORT size_t qHash(const QShader &, size_t) noexcept;
-#ifndef QT_NO_DEBUG_STREAM
-    friend Q_GUI_EXPORT QDebug operator<<(QDebug, const QShader &);
-#endif
-};
-
-class Q_GUI_EXPORT QShaderKey
-{
-public:
-    QShaderKey() = default;
-    QShaderKey(QShader::Source s,
-               const QShaderVersion &sver,
-               QShader::Variant svar = QShader::StandardShader);
-
-    QShader::Source source() const { return m_source; }
-    void setSource(QShader::Source s) { m_source = s; }
-
-    QShaderVersion sourceVersion() const { return m_sourceVersion; }
-    void setSourceVersion(const QShaderVersion &sver) { m_sourceVersion = sver; }
-
-    QShader::Variant sourceVariant() const { return m_sourceVariant; }
-    void setSourceVariant(QShader::Variant svar) { m_sourceVariant = svar; }
-
-private:
-    QShader::Source m_source = QShader::SpirvShader;
-    QShaderVersion m_sourceVersion;
-    QShader::Variant m_sourceVariant = QShader::StandardShader;
-};
-
-Q_DECLARE_TYPEINFO(QShaderKey, Q_RELOCATABLE_TYPE);
-
-Q_GUI_EXPORT bool operator==(const QShader &lhs, const QShader &rhs) noexcept;
-Q_GUI_EXPORT size_t qHash(const QShader &s, size_t seed = 0) noexcept;
-
-inline bool operator!=(const QShader &lhs, const QShader &rhs) noexcept
-{
-    return !(lhs == rhs);
-}
-
-Q_GUI_EXPORT bool operator==(const QShaderVersion &lhs, const QShaderVersion &rhs) noexcept;
-Q_GUI_EXPORT bool operator<(const QShaderVersion &lhs, const QShaderVersion &rhs) noexcept;
-Q_GUI_EXPORT bool operator==(const QShaderKey &lhs, const QShaderKey &rhs) noexcept;
-Q_GUI_EXPORT bool operator<(const QShaderKey &lhs, const QShaderKey &rhs) noexcept;
-Q_GUI_EXPORT bool operator==(const QShaderCode &lhs, const QShaderCode &rhs) noexcept;
-
-inline bool operator!=(const QShaderVersion &lhs, const QShaderVersion &rhs) noexcept
-{
-    return !(lhs == rhs);
-}
-
-inline bool operator!=(const QShaderKey &lhs, const QShaderKey &rhs) noexcept
-{
-    return !(lhs == rhs);
-}
-
-inline bool operator!=(const QShaderCode &lhs, const QShaderCode &rhs) noexcept
-{
-    return !(lhs == rhs);
-}
-
-Q_GUI_EXPORT size_t qHash(const QShaderKey &k, size_t seed = 0) noexcept;
-
-#ifndef QT_NO_DEBUG_STREAM
-Q_GUI_EXPORT QDebug operator<<(QDebug, const QShader &);
-Q_GUI_EXPORT QDebug operator<<(QDebug dbg, const QShaderKey &k);
-Q_GUI_EXPORT QDebug operator<<(QDebug dbg, const QShaderVersion &v);
-#endif
-
 QT_END_NAMESPACE
 
 #endif
diff --git a/src/gui/rhi/qshader_p_p.h b/src/gui/rhi/qshader_p_p.h
deleted file mode 100644
index 58fb2072..00000000
--- a/src/gui/rhi/qshader_p_p.h
+++ /dev/null
@@ -1,88 +0,0 @@
-// Copyright (C) 2019 The Qt Company Ltd.
-// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
-
-#ifndef QSHADER_P_P_H
-#define QSHADER_P_P_H
-
-//
-//  W A R N I N G
-//  -------------
-//
-// This file is not part of the Qt API.  It exists for the convenience
-// of a number of Qt sources files.  This header file may change from
-// version to version without notice, or even be removed.
-//
-// We mean it.
-//
-
-#include "qshader_p.h"
-#include <QtCore/QAtomicInt>
-#include <QtCore/QMap>
-#include <QtCore/QDebug>
-
-QT_BEGIN_NAMESPACE
-
-struct Q_GUI_EXPORT QShaderPrivate
-{
-    static const int QSB_VERSION = 8;
-    static const int QSB_VERSION_WITHOUT_EXTENDED_STORAGE_BUFFER_INFO = 7;
-    static const int QSB_VERSION_WITHOUT_NATIVE_SHADER_INFO = 6;
-    static const int QSB_VERSION_WITHOUT_SEPARATE_IMAGES_AND_SAMPLERS = 5;
-    static const int QSB_VERSION_WITHOUT_VAR_ARRAYDIMS = 4;
-    static const int QSB_VERSION_WITH_CBOR = 3;
-    static const int QSB_VERSION_WITH_BINARY_JSON = 2;
-    static const int QSB_VERSION_WITHOUT_BINDINGS = 1;
-
-    enum MslNativeShaderInfoExtraBufferBindings {
-        MslTessVertIndicesBufferBinding = 0,
-        MslTessVertTescOutputBufferBinding,
-        MslTessTescTessLevelBufferBinding,
-        MslTessTescPatchOutputBufferBinding,
-        MslTessTescParamsBufferBinding,
-        MslTessTescInputBufferBinding
-    };
-
-    QShaderPrivate()
-        : ref(1)
-    {
-    }
-
-    QShaderPrivate(const QShaderPrivate &other)
-        : ref(1),
-          qsbVersion(other.qsbVersion),
-          stage(other.stage),
-          desc(other.desc),
-          shaders(other.shaders),
-          bindings(other.bindings),
-          combinedImageMap(other.combinedImageMap),
-          nativeShaderInfoMap(other.nativeShaderInfoMap)
-    {
-    }
-
-    static QShaderPrivate *get(QShader *s) { return s->d; }
-    static const QShaderPrivate *get(const QShader *s) { return s->d; }
-    static int qtQsbVersion(QShader::SerializedFormatVersion qtVersion) {
-        switch (qtVersion) {
-        case QShader::SerializedFormatVersion::Qt_6_4:
-            return (QShaderPrivate::QSB_VERSION_WITHOUT_SEPARATE_IMAGES_AND_SAMPLERS + 1);
-        case QShader::SerializedFormatVersion::Qt_6_5:
-            return (QShaderPrivate::QSB_VERSION_WITHOUT_EXTENDED_STORAGE_BUFFER_INFO + 1);
-        default:
-            return QShaderPrivate::QSB_VERSION;
-        }
-    }
-
-    QAtomicInt ref;
-    int qsbVersion = QSB_VERSION;
-    QShader::Stage stage = QShader::VertexStage;
-    QShaderDescription desc;
-    // QMap not QHash because we need to be able to iterate based on sorted keys
-    QMap<QShaderKey, QShaderCode> shaders;
-    QMap<QShaderKey, QShader::NativeResourceBindingMap> bindings;
-    QMap<QShaderKey, QShader::SeparateToCombinedImageSamplerMappingList> combinedImageMap;
-    QMap<QShaderKey, QShader::NativeShaderInfo> nativeShaderInfoMap;
-};
-
-QT_END_NAMESPACE
-
-#endif
diff --git a/src/gui/rhi/qshaderdescription.cpp b/src/gui/rhi/qshaderdescription.cpp
index ca697d8e..f64daf02 100644
--- a/src/gui/rhi/qshaderdescription.cpp
+++ b/src/gui/rhi/qshaderdescription.cpp
@@ -1,8 +1,8 @@
-// Copyright (C) 2019 The Qt Company Ltd.
+// Copyright (C) 2023 The Qt Company Ltd.
 // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
 
-#include "qshaderdescription_p_p.h"
-#include "qshader_p_p.h"
+#include "qshaderdescription_p.h"
+#include "qshader_p.h"
 #include <QDebug>
 #include <QDataStream>
 #include <QJsonObject>
@@ -12,11 +12,22 @@ QT_BEGIN_NAMESPACE
 
 /*!
     \class QShaderDescription
-    \internal
+    \ingroup painting-3D
     \inmodule QtGui
+    \since 6.6
 
     \brief Describes the interface of a shader.
 
+    \warning The QRhi family of classes in the Qt Gui module, including QShader
+    and QShaderDescription, offer limited compatibility guarantees. There are
+    no source or binary compatibility guarantees for these classes, meaning the
+    API is only guaranteed to work with the Qt version the application was
+    developed against. Source incompatible changes are however aimed to be kept
+    at a minimum and will only be made in minor releases (6.7, 6.8, and so on).
+    To use these classes in an application, link to
+    \c{Qt::GuiPrivate} (if using CMake), and include the headers with the \c
+    rhi prefix, for example \c{#include <rhi/qshaderdescription.h>}.
+
     A shader typically has a set of inputs and outputs. A vertex shader for
     example has a number of input variables and may use one or more uniform
     buffers to access data (e.g. a modelview matrix) provided by the
@@ -51,8 +62,6 @@ QT_BEGIN_NAMESPACE
             float opacity;
         } ubuf;
 
-        out gl_PerVertex { vec4 gl_Position; };
-
         void main()
         {
             v_color = color;
@@ -200,28 +209,179 @@ QT_BEGIN_NAMESPACE
     \value ImageRect
     \value ImageBuffer
     \value Struct
+    \value Half
+    \value Half2
+    \value Half3
+    \value Half4
  */
 
 /*!
-    \class QShaderDescription::InOutVariable
-    \internal
+    \enum QShaderDescription::ImageFormat
+    Image format.
+
+    \value ImageFormatUnknown
+    \value ImageFormatRgba32f
+    \value ImageFormatRgba16f
+    \value ImageFormatR32f
+    \value ImageFormatRgba8
+    \value ImageFormatRgba8Snorm
+    \value ImageFormatRg32f
+    \value ImageFormatRg16f
+    \value ImageFormatR11fG11fB10f
+    \value ImageFormatR16f
+    \value ImageFormatRgba16
+    \value ImageFormatRgb10A2
+    \value ImageFormatRg16
+    \value ImageFormatRg8
+    \value ImageFormatR16
+    \value ImageFormatR8
+    \value ImageFormatRgba16Snorm
+    \value ImageFormatRg16Snorm
+    \value ImageFormatRg8Snorm
+    \value ImageFormatR16Snorm
+    \value ImageFormatR8Snorm
+    \value ImageFormatRgba32i
+    \value ImageFormatRgba16i
+    \value ImageFormatRgba8i
+    \value ImageFormatR32i
+    \value ImageFormatRg32i
+    \value ImageFormatRg16i
+    \value ImageFormatRg8i
+    \value ImageFormatR16i
+    \value ImageFormatR8i
+    \value ImageFormatRgba32ui
+    \value ImageFormatRgba16ui
+    \value ImageFormatRgba8ui
+    \value ImageFormatR32ui
+    \value ImageFormatRgb10a2ui
+    \value ImageFormatRg32ui
+    \value ImageFormatRg16ui
+    \value ImageFormatRg8ui
+    \value ImageFormatR16ui
+    \value ImageFormatR8ui
+ */
+
+/*!
+    \enum QShaderDescription::ImageFlag
+    Image flags.
+
+    \value ReadOnlyImage
+    \value WriteOnlyImage
+ */
+
+/*!
+    \enum QShaderDescription::QualifierFlag
+    Qualifier flags.
+
+    \value QualifierReadOnly
+    \value QualifierWriteOnly
+    \value QualifierCoherent
+    \value QualifierVolatile
+    \value QualifierRestrict
+ */
+
+/*!
+    \struct QShaderDescription::InOutVariable
     \inmodule QtGui
+    \since 6.6
 
     \brief Describes an input or output variable in the shader.
+
+    \note This is a RHI API with limited compatibility guarantees, see \l QShaderDescription
+    for details.
  */
 
 /*!
-    \class QShaderDescription::BlockVariable
-    \internal
+    \variable QShaderDescription::InOutVariable::name
+ */
+
+/*!
+    \variable QShaderDescription::InOutVariable::type
+ */
+
+/*!
+    \variable QShaderDescription::InOutVariable::location
+ */
+
+/*!
+    \variable QShaderDescription::InOutVariable::binding
+ */
+
+/*!
+    \variable QShaderDescription::InOutVariable::descriptorSet
+ */
+
+/*!
+    \variable QShaderDescription::InOutVariable::imageFormat
+ */
+
+/*!
+    \variable QShaderDescription::InOutVariable::imageFlags
+ */
+
+/*!
+    \variable QShaderDescription::InOutVariable::arrayDims
+ */
+
+/*!
+    \variable QShaderDescription::InOutVariable::perPatch
+ */
+
+/*!
+    \variable QShaderDescription::InOutVariable::structMembers
+ */
+
+/*!
+    \struct QShaderDescription::BlockVariable
     \inmodule QtGui
+    \since 6.6
 
     \brief Describes a member of a uniform or push constant block.
+
+    \note This is a RHI API with limited compatibility guarantees, see \l QShaderDescription
+    for details.
  */
 
 /*!
-    \class QShaderDescription::UniformBlock
-    \internal
+    \variable QShaderDescription::BlockVariable::name
+ */
+
+/*!
+    \variable QShaderDescription::BlockVariable::type
+ */
+
+/*!
+    \variable QShaderDescription::BlockVariable::offset
+ */
+
+/*!
+    \variable QShaderDescription::BlockVariable::size
+ */
+
+/*!
+    \variable QShaderDescription::BlockVariable::arrayDims
+ */
+
+/*!
+    \variable QShaderDescription::BlockVariable::arrayStride
+ */
+
+/*!
+    \variable QShaderDescription::BlockVariable::matrixStride
+ */
+
+/*!
+    \variable QShaderDescription::BlockVariable::matrixIsRowMajor
+ */
+
+/*!
+    \variable QShaderDescription::BlockVariable::structMembers
+ */
+
+/*!
+    \struct QShaderDescription::UniformBlock
     \inmodule QtGui
+    \since 6.6
 
     \brief Describes a uniform block.
 
@@ -229,22 +389,157 @@ QT_BEGIN_NAMESPACE
     (like GLSL 120 or GLSL/ES 100), uniform blocks are replaced with ordinary
     uniforms in a struct. The name of the struct, and so the prefix for the
     uniforms generated from the block members, is given by structName.
+
+    \note This is a RHI API with limited compatibility guarantees, see \l QShaderDescription
+    for details.
  */
 
 /*!
-    \class QShaderDescription::PushConstantBlock
-    \internal
+    \variable QShaderDescription::UniformBlock::blockName
+ */
+
+/*!
+    \variable QShaderDescription::UniformBlock::structName
+ */
+
+/*!
+    \variable QShaderDescription::UniformBlock::size
+ */
+
+/*!
+    \variable QShaderDescription::UniformBlock::binding
+ */
+
+/*!
+    \variable QShaderDescription::UniformBlock::descriptorSet
+ */
+
+/*!
+    \variable QShaderDescription::UniformBlock::members
+ */
+
+/*!
+    \struct QShaderDescription::PushConstantBlock
     \inmodule QtGui
+    \since 6.6
 
     \brief Describes a push constant block.
+
+    \note This is a RHI API with limited compatibility guarantees, see \l QShaderDescription
+    for details.
  */
 
 /*!
-    \class QShaderDescription::StorageBlock
-    \internal
+    \variable QShaderDescription::PushConstantBlock::name
+ */
+
+/*!
+    \variable QShaderDescription::PushConstantBlock::size
+ */
+
+/*!
+    \variable QShaderDescription::PushConstantBlock::members
+ */
+
+/*!
+    \struct QShaderDescription::StorageBlock
     \inmodule QtGui
+    \since 6.6
 
     \brief Describes a shader storage block.
+
+    \note This is a RHI API with limited compatibility guarantees, see \l QShaderDescription
+    for details.
+ */
+
+/*!
+    \variable QShaderDescription::StorageBlock::blockName
+ */
+
+/*!
+    \variable QShaderDescription::StorageBlock::instanceName
+ */
+
+/*!
+    \variable QShaderDescription::StorageBlock::knownSize
+ */
+
+/*!
+    \variable QShaderDescription::StorageBlock::binding
+ */
+
+/*!
+    \variable QShaderDescription::StorageBlock::descriptorSet
+ */
+
+/*!
+    \variable QShaderDescription::StorageBlock::members
+ */
+
+/*!
+    \variable QShaderDescription::StorageBlock::runtimeArrayStride
+ */
+
+/*!
+    \variable QShaderDescription::StorageBlock::qualifierFlags
+ */
+
+/*!
+    \struct QShaderDescription::BuiltinVariable
+    \inmodule QtGui
+    \since 6.6
+
+    \brief Describes a built-in variable.
+
+    \note This is a RHI API with limited compatibility guarantees, see \l QShaderDescription
+    for details.
+ */
+
+/*!
+    \variable QShaderDescription::BuiltinVariable::type
+ */
+
+/*!
+    \variable QShaderDescription::BuiltinVariable::varType
+ */
+
+/*!
+    \variable QShaderDescription::BuiltinVariable::arrayDims
+ */
+
+/*!
+    \enum QShaderDescription::BuiltinType
+    Built-in variable type.
+
+    \value PositionBuiltin
+    \value PointSizeBuiltin
+    \value ClipDistanceBuiltin
+    \value CullDistanceBuiltin
+    \value VertexIdBuiltin
+    \value InstanceIdBuiltin
+    \value PrimitiveIdBuiltin
+    \value InvocationIdBuiltin
+    \value LayerBuiltin
+    \value ViewportIndexBuiltin
+    \value TessLevelOuterBuiltin
+    \value TessLevelInnerBuiltin
+    \value TessCoordBuiltin
+    \value PatchVerticesBuiltin
+    \value FragCoordBuiltin
+    \value PointCoordBuiltin
+    \value FrontFacingBuiltin
+    \value SampleIdBuiltin
+    \value SamplePositionBuiltin
+    \value SampleMaskBuiltin
+    \value FragDepthBuiltin
+    \value NumWorkGroupsBuiltin
+    \value WorkgroupSizeBuiltin
+    \value WorkgroupIdBuiltin
+    \value LocalInvocationIdBuiltin
+    \value GlobalInvocationIdBuiltin
+    \value LocalInvocationIndexBuiltin
+    \value VertexIndexBuiltin
+    \value InstanceIndexBuiltin
  */
 
 /*!
@@ -267,7 +562,7 @@ void QShaderDescription::detach()
 }
 
 /*!
-    \internal
+    Constructs a copy of \a other.
  */
 QShaderDescription::QShaderDescription(const QShaderDescription &other)
     : d(other.d)
@@ -276,7 +571,7 @@ QShaderDescription::QShaderDescription(const QShaderDescription &other)
 }
 
 /*!
-    \internal
+    Assigns \a other to this object.
  */
 QShaderDescription &QShaderDescription::operator=(const QShaderDescription &other)
 {
@@ -574,7 +869,7 @@ uint QShaderDescription::tessellationOutputVertexCount() const
     \value UnknownTessellationMode
     \value TrianglesTessellationMode
     \value QuadTessellationMode
-    \value IsolinesTessellationMode
+    \value IsolineTessellationMode
  */
 
 /*!
@@ -724,8 +1019,12 @@ static const struct TypeTab {
     { "image3DArray", QShaderDescription::Image3DArray },
     { "imageCubeArray", QShaderDescription::ImageCubeArray },
     { "imageRect", QShaderDescription::ImageRect },
-    { "imageBuffer", QShaderDescription::ImageBuffer }
-};
+    { "imageBuffer", QShaderDescription::ImageBuffer },
+
+    { "half", QShaderDescription::Half },
+    { "half2", QShaderDescription::Half2 },
+    { "half3", QShaderDescription::Half3 },
+    { "half4", QShaderDescription::Half4 } };
 
 static QLatin1StringView typeStr(QShaderDescription::VariableType t)
 {
@@ -936,6 +1235,8 @@ QDebug operator<<(QDebug dbg, const QShaderDescription::InOutVariable &var)
         dbg.nospace() << " imageFlags=" << var.imageFlags;
     if (!var.arrayDims.isEmpty())
         dbg.nospace() << " array=" << var.arrayDims;
+    if (!var.structMembers.isEmpty())
+        dbg.nospace() << " structMembers=" << var.structMembers;
     dbg.nospace() << ')';
     return dbg;
 }
@@ -943,8 +1244,10 @@ QDebug operator<<(QDebug dbg, const QShaderDescription::InOutVariable &var)
 QDebug operator<<(QDebug dbg, const QShaderDescription::BlockVariable &var)
 {
     QDebugStateSaver saver(dbg);
-    dbg.nospace() << "BlockVariable(" << typeStr(var.type) << ' ' << var.name
-                  << " offset=" << var.offset << " size=" << var.size;
+    dbg.nospace() << "BlockVariable(" << typeStr(var.type) << ' ' << var.name;
+    if (var.offset != -1)
+        dbg.nospace() << " offset=" << var.offset;
+    dbg.nospace() << " size=" << var.size;
     if (!var.arrayDims.isEmpty())
         dbg.nospace() << " array=" << var.arrayDims;
     if (var.arrayStride)
@@ -1000,7 +1303,11 @@ QDebug operator<<(QDebug dbg, const QShaderDescription::StorageBlock &blk)
 QDebug operator<<(QDebug dbg, const QShaderDescription::BuiltinVariable &builtin)
 {
     QDebugStateSaver saver(dbg);
-    dbg.nospace() << "BuiltinVariable(type=" << builtinTypeStr(builtin.type) << ")";
+    dbg.nospace() << "BuiltinVariable(type=" << builtinTypeStr(builtin.type);
+    dbg.nospace() << " varType=" << typeStr(builtin.varType);
+    if (!builtin.arrayDims.isEmpty())
+        dbg.nospace() << " array=" << builtin.arrayDims;
+    dbg.nospace() << ")";
     return dbg;
 }
 #endif
@@ -1082,20 +1389,15 @@ static void serializeDecorations(QDataStream *stream, const QShaderDescription::
         (*stream) << quint8(v.perPatch);
 }
 
-static QJsonObject inOutObject(const QShaderDescription::InOutVariable &v)
+static void serializeBuiltinVar(QDataStream *stream, const QShaderDescription::BuiltinVariable &v, int version)
 {
-    QJsonObject obj;
-    obj[nameKey()] = QString::fromUtf8(v.name);
-    obj[typeKey()] = typeStr(v.type);
-    addDeco(&obj, v);
-    return obj;
-}
-
-static void serializeInOutVar(QDataStream *stream, const QShaderDescription::InOutVariable &v, int version)
-{
-    (*stream) << QString::fromUtf8(v.name);
     (*stream) << int(v.type);
-    serializeDecorations(stream, v, version);
+    if (version > QShaderPrivate::QSB_VERSION_WITHOUT_INPUT_OUTPUT_INTERFACE_BLOCKS) {
+        (*stream) << int(v.varType);
+        (*stream) << int(v.arrayDims.size());
+        for (int dim : v.arrayDims)
+            (*stream) << dim;
+    }
 }
 
 static QJsonObject blockMemberObject(const QShaderDescription::BlockVariable &v)
@@ -1103,7 +1405,8 @@ static QJsonObject blockMemberObject(const QShaderDescription::BlockVariable &v)
     QJsonObject obj;
     obj[nameKey()] = QString::fromUtf8(v.name);
     obj[typeKey()] = typeStr(v.type);
-    obj[offsetKey()] = v.offset;
+    if (v.offset != -1)
+        obj[offsetKey()] = v.offset;
     obj[sizeKey()] = v.size;
     if (!v.arrayDims.isEmpty()) {
         QJsonArray dimArr;
@@ -1126,6 +1429,36 @@ static QJsonObject blockMemberObject(const QShaderDescription::BlockVariable &v)
     return obj;
 }
 
+static QJsonObject inOutObject(const QShaderDescription::InOutVariable &v)
+{
+    QJsonObject obj;
+    obj[nameKey()] = QString::fromUtf8(v.name);
+    obj[typeKey()] = typeStr(v.type);
+    addDeco(&obj, v);
+    if (!v.structMembers.isEmpty()) {
+        QJsonArray arr;
+        for (const QShaderDescription::BlockVariable &sv : v.structMembers)
+            arr.append(blockMemberObject(sv));
+        obj[structMembersKey()] = arr;
+    }
+    return obj;
+}
+
+static QJsonObject builtinObject(const QShaderDescription::BuiltinVariable &v)
+{
+    QJsonObject obj;
+
+    obj[nameKey()] = builtinTypeStr(v.type);
+    obj[typeKey()] = typeStr(v.varType);
+    if (!v.arrayDims.isEmpty()) {
+        QJsonArray dimArr;
+        for (int dim : v.arrayDims)
+            dimArr.append(dim);
+        obj[arrayDimsKey()] = dimArr;
+    }
+    return obj;
+}
+
 static void serializeBlockMemberVar(QDataStream *stream, const QShaderDescription::BlockVariable &v)
 {
     (*stream) << QString::fromUtf8(v.name);
@@ -1143,6 +1476,19 @@ static void serializeBlockMemberVar(QDataStream *stream, const QShaderDescriptio
         serializeBlockMemberVar(stream, sv);
 }
 
+static void serializeInOutVar(QDataStream *stream, const QShaderDescription::InOutVariable &v,
+                              int version)
+{
+    (*stream) << QString::fromUtf8(v.name);
+    (*stream) << int(v.type);
+    serializeDecorations(stream, v, version);
+    if (version > QShaderPrivate::QSB_VERSION_WITHOUT_INPUT_OUTPUT_INTERFACE_BLOCKS) {
+        (*stream) << int(v.structMembers.size());
+        for (const QShaderDescription::BlockVariable &sv : v.structMembers)
+            serializeBlockMemberVar(stream, sv);
+    }
+}
+
 QJsonDocument QShaderDescriptionPrivate::makeDoc()
 {
     QJsonObject root;
@@ -1238,20 +1584,14 @@ QJsonDocument QShaderDescriptionPrivate::makeDoc()
         root[storageImagesKey()] = jstorageImages;
 
     QJsonArray jinBuiltins;
-    for (const QShaderDescription::BuiltinVariable &v : std::as_const(inBuiltins)) {
-        QJsonObject builtin;
-        builtin[typeKey()] = builtinTypeStr(v.type);
-        jinBuiltins.append(builtin);
-    }
+    for (const QShaderDescription::BuiltinVariable &v : std::as_const(inBuiltins))
+        jinBuiltins.append(builtinObject(v));
     if (!jinBuiltins.isEmpty())
         root[inBuiltinsKey()] = jinBuiltins;
 
     QJsonArray joutBuiltins;
-    for (const QShaderDescription::BuiltinVariable &v : std::as_const(outBuiltins)) {
-        QJsonObject builtin;
-        builtin[typeKey()] = builtinTypeStr(v.type);
-        joutBuiltins.append(builtin);
-    }
+    for (const QShaderDescription::BuiltinVariable &v : std::as_const(outBuiltins))
+        joutBuiltins.append(builtinObject(v));
     if (!joutBuiltins.isEmpty())
         root[outBuiltinsKey()] = joutBuiltins;
 
@@ -1385,11 +1725,11 @@ void QShaderDescriptionPrivate::writeToStream(QDataStream *stream, int version)
 
         (*stream) << int(inBuiltins.size());
         for (const QShaderDescription::BuiltinVariable &v : std::as_const(inBuiltins))
-            (*stream) << int(v.type);
+            serializeBuiltinVar(stream, v, version);
 
         (*stream) << int(outBuiltins.size());
         for (const QShaderDescription::BuiltinVariable &v : std::as_const(outBuiltins))
-            (*stream) << int(v.type);
+            serializeBuiltinVar(stream, v, version);
     }
 }
 
@@ -1418,16 +1758,21 @@ static void deserializeDecorations(QDataStream *stream, int version, QShaderDesc
     }
 }
 
-static QShaderDescription::InOutVariable deserializeInOutVar(QDataStream *stream, int version)
+static QShaderDescription::BuiltinVariable deserializeBuiltinVar(QDataStream *stream, int version)
 {
-    QShaderDescription::InOutVariable var;
-    QString tmp;
-    (*stream) >> tmp;
-    var.name = tmp.toUtf8();
+    QShaderDescription::BuiltinVariable var;
     int t;
     (*stream) >> t;
-    var.type = QShaderDescription::VariableType(t);
-    deserializeDecorations(stream, version, &var);
+    var.type = QShaderDescription::BuiltinType(t);
+    if (version > QShaderPrivate::QSB_VERSION_WITHOUT_INPUT_OUTPUT_INTERFACE_BLOCKS) {
+        (*stream) >> t;
+        var.varType = QShaderDescription::VariableType(t);
+        int count;
+        (*stream) >> count;
+        var.arrayDims.resize(count);
+        for (int i = 0; i < count; ++i)
+            (*stream) >> var.arrayDims[i];
+    }
     return var;
 }
 
@@ -1457,6 +1802,26 @@ static QShaderDescription::BlockVariable deserializeBlockMemberVar(QDataStream *
     return var;
 }
 
+static QShaderDescription::InOutVariable deserializeInOutVar(QDataStream *stream, int version)
+{
+    QShaderDescription::InOutVariable var;
+    QString tmp;
+    (*stream) >> tmp;
+    var.name = tmp.toUtf8();
+    int t;
+    (*stream) >> t;
+    var.type = QShaderDescription::VariableType(t);
+    deserializeDecorations(stream, version, &var);
+    if (version > QShaderPrivate::QSB_VERSION_WITHOUT_INPUT_OUTPUT_INTERFACE_BLOCKS) {
+        int count;
+        (*stream) >> count;
+        var.structMembers.resize(count);
+        for (int i = 0; i < count; ++i)
+            var.structMembers[i] = deserializeBlockMemberVar(stream, version);
+    }
+    return var;
+}
+
 void QShaderDescriptionPrivate::loadFromStream(QDataStream *stream, int version)
 {
     Q_ASSERT(ref.loadRelaxed() == 1); // must be detached
@@ -1596,19 +1961,13 @@ void QShaderDescriptionPrivate::loadFromStream(QDataStream *stream, int version)
 
         (*stream) >> count;
         inBuiltins.resize(count);
-        for (int i = 0; i < count; ++i) {
-            int t;
-            (*stream) >> t;
-            inBuiltins[i].type = QShaderDescription::BuiltinType(t);
-        }
+        for (int i = 0; i < count; ++i)
+            inBuiltins[i] = deserializeBuiltinVar(stream, version);
 
         (*stream) >> count;
         outBuiltins.resize(count);
-        for (int i = 0; i < count; ++i) {
-            int t;
-            (*stream) >> t;
-            outBuiltins[i].type = QShaderDescription::BuiltinType(t);
-        }
+        for (int i = 0; i < count; ++i)
+            outBuiltins[i] = deserializeBuiltinVar(stream, version);
     }
 }
 
@@ -1657,7 +2016,8 @@ bool operator==(const QShaderDescription::InOutVariable &lhs, const QShaderDescr
             && lhs.imageFormat == rhs.imageFormat
             && lhs.imageFlags == rhs.imageFlags
             && lhs.arrayDims == rhs.arrayDims
-            && lhs.perPatch == rhs.perPatch;
+            && lhs.perPatch == rhs.perPatch
+            && lhs.structMembers == rhs.structMembers;
 }
 
 /*!
@@ -1734,7 +2094,9 @@ bool operator==(const QShaderDescription::StorageBlock &lhs, const QShaderDescri
  */
 bool operator==(const QShaderDescription::BuiltinVariable &lhs, const QShaderDescription::BuiltinVariable &rhs) noexcept
 {
-    return lhs.type == rhs.type;
+    return lhs.type == rhs.type
+            && lhs.varType == rhs.varType
+            && lhs.arrayDims == rhs.arrayDims;
 }
 
 QT_END_NAMESPACE
diff --git a/src/gui/rhi/qshaderdescription.h b/src/gui/rhi/qshaderdescription.h
new file mode 100644
index 00000000..02492a15
--- /dev/null
+++ b/src/gui/rhi/qshaderdescription.h
@@ -0,0 +1,386 @@
+// Copyright (C) 2023 The Qt Company Ltd.
+// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
+
+#ifndef QSHADERDESCRIPTION_H
+#define QSHADERDESCRIPTION_H
+
+//
+//  W A R N I N G
+//  -------------
+//
+// This file is part of the RHI API, with limited compatibility guarantees.
+// Usage of this API may make your code source and binary incompatible with
+// future versions of Qt.
+//
+
+#include <QtGui/qtguiglobal.h>
+#include <QtCore/qstring.h>
+#include <QtCore/qlist.h>
+#include <array>
+
+QT_BEGIN_NAMESPACE
+
+struct QShaderDescriptionPrivate;
+class QDataStream;
+
+class Q_GUI_EXPORT QShaderDescription
+{
+public:
+    QShaderDescription();
+    QShaderDescription(const QShaderDescription &other);
+    QShaderDescription &operator=(const QShaderDescription &other);
+    ~QShaderDescription();
+    void detach();
+
+    bool isValid() const;
+
+    void serialize(QDataStream *stream, int version) const;
+    QByteArray toJson() const;
+
+    static QShaderDescription deserialize(QDataStream *stream, int version);
+
+    enum VariableType {
+        Unknown = 0,
+
+        // do not reorder
+        Float,
+        Vec2,
+        Vec3,
+        Vec4,
+        Mat2,
+        Mat2x3,
+        Mat2x4,
+        Mat3,
+        Mat3x2,
+        Mat3x4,
+        Mat4,
+        Mat4x2,
+        Mat4x3,
+
+        Int,
+        Int2,
+        Int3,
+        Int4,
+
+        Uint,
+        Uint2,
+        Uint3,
+        Uint4,
+
+        Bool,
+        Bool2,
+        Bool3,
+        Bool4,
+
+        Double,
+        Double2,
+        Double3,
+        Double4,
+        DMat2,
+        DMat2x3,
+        DMat2x4,
+        DMat3,
+        DMat3x2,
+        DMat3x4,
+        DMat4,
+        DMat4x2,
+        DMat4x3,
+
+        Sampler1D,
+        Sampler2D,
+        Sampler2DMS,
+        Sampler3D,
+        SamplerCube,
+        Sampler1DArray,
+        Sampler2DArray,
+        Sampler2DMSArray,
+        Sampler3DArray,
+        SamplerCubeArray,
+        SamplerRect,
+        SamplerBuffer,
+        SamplerExternalOES,
+        Sampler,
+
+        Image1D,
+        Image2D,
+        Image2DMS,
+        Image3D,
+        ImageCube,
+        Image1DArray,
+        Image2DArray,
+        Image2DMSArray,
+        Image3DArray,
+        ImageCubeArray,
+        ImageRect,
+        ImageBuffer,
+
+        Struct,
+
+        Half,
+        Half2,
+        Half3,
+        Half4
+    };
+
+    enum ImageFormat {
+        // must match SPIR-V's ImageFormat
+        ImageFormatUnknown = 0,
+        ImageFormatRgba32f = 1,
+        ImageFormatRgba16f = 2,
+        ImageFormatR32f = 3,
+        ImageFormatRgba8 = 4,
+        ImageFormatRgba8Snorm = 5,
+        ImageFormatRg32f = 6,
+        ImageFormatRg16f = 7,
+        ImageFormatR11fG11fB10f = 8,
+        ImageFormatR16f = 9,
+        ImageFormatRgba16 = 10,
+        ImageFormatRgb10A2 = 11,
+        ImageFormatRg16 = 12,
+        ImageFormatRg8 = 13,
+        ImageFormatR16 = 14,
+        ImageFormatR8 = 15,
+        ImageFormatRgba16Snorm = 16,
+        ImageFormatRg16Snorm = 17,
+        ImageFormatRg8Snorm = 18,
+        ImageFormatR16Snorm = 19,
+        ImageFormatR8Snorm = 20,
+        ImageFormatRgba32i = 21,
+        ImageFormatRgba16i = 22,
+        ImageFormatRgba8i = 23,
+        ImageFormatR32i = 24,
+        ImageFormatRg32i = 25,
+        ImageFormatRg16i = 26,
+        ImageFormatRg8i = 27,
+        ImageFormatR16i = 28,
+        ImageFormatR8i = 29,
+        ImageFormatRgba32ui = 30,
+        ImageFormatRgba16ui = 31,
+        ImageFormatRgba8ui = 32,
+        ImageFormatR32ui = 33,
+        ImageFormatRgb10a2ui = 34,
+        ImageFormatRg32ui = 35,
+        ImageFormatRg16ui = 36,
+        ImageFormatRg8ui = 37,
+        ImageFormatR16ui = 38,
+        ImageFormatR8ui = 39
+    };
+
+    enum ImageFlag {
+        ReadOnlyImage = 1 << 0,
+        WriteOnlyImage = 1 << 1
+    };
+    Q_DECLARE_FLAGS(ImageFlags, ImageFlag)
+
+    enum QualifierFlag {
+        QualifierReadOnly = 1 << 0,
+        QualifierWriteOnly = 1 << 1,
+        QualifierCoherent = 1 << 2,
+        QualifierVolatile = 1 << 3,
+        QualifierRestrict = 1 << 4,
+    };
+    Q_DECLARE_FLAGS(QualifierFlags, QualifierFlag)
+
+    // Optional data (like decorations) usually default to an otherwise invalid value (-1 or 0). This is intentional.
+
+    struct BlockVariable {
+        QByteArray name;
+        VariableType type = Unknown;
+        int offset = 0;
+        int size = 0;
+        QList<int> arrayDims;
+        int arrayStride = 0;
+        int matrixStride = 0;
+        bool matrixIsRowMajor = false;
+        QList<BlockVariable> structMembers;
+    };
+
+    struct InOutVariable {
+        QByteArray name;
+        VariableType type = Unknown;
+        int location = -1;
+        int binding = -1;
+        int descriptorSet = -1;
+        ImageFormat imageFormat = ImageFormatUnknown;
+        ImageFlags imageFlags;
+        QList<int> arrayDims;
+        bool perPatch = false;
+        QList<BlockVariable> structMembers;
+    };
+
+    struct UniformBlock {
+        QByteArray blockName;
+        QByteArray structName; // instanceName
+        int size = 0;
+        int binding = -1;
+        int descriptorSet = -1;
+        QList<BlockVariable> members;
+    };
+
+    struct PushConstantBlock {
+        QByteArray name;
+        int size = 0;
+        QList<BlockVariable> members;
+    };
+
+    struct StorageBlock {
+        QByteArray blockName;
+        QByteArray instanceName;
+        int knownSize = 0;
+        int binding = -1;
+        int descriptorSet = -1;
+        QList<BlockVariable> members;
+        int runtimeArrayStride = 0;
+        QualifierFlags qualifierFlags;
+    };
+
+    QList<InOutVariable> inputVariables() const;
+    QList<InOutVariable> outputVariables() const;
+    QList<UniformBlock> uniformBlocks() const;
+    QList<PushConstantBlock> pushConstantBlocks() const;
+    QList<StorageBlock> storageBlocks() const;
+    QList<InOutVariable> combinedImageSamplers() const;
+    QList<InOutVariable> separateImages() const;
+    QList<InOutVariable> separateSamplers() const;
+    QList<InOutVariable> storageImages() const;
+
+    enum BuiltinType {
+        // must match SpvBuiltIn
+        PositionBuiltin = 0,
+        PointSizeBuiltin = 1,
+        ClipDistanceBuiltin = 3,
+        CullDistanceBuiltin = 4,
+        VertexIdBuiltin = 5,
+        InstanceIdBuiltin = 6,
+        PrimitiveIdBuiltin = 7,
+        InvocationIdBuiltin = 8,
+        LayerBuiltin = 9,
+        ViewportIndexBuiltin = 10,
+        TessLevelOuterBuiltin = 11,
+        TessLevelInnerBuiltin = 12,
+        TessCoordBuiltin = 13,
+        PatchVerticesBuiltin = 14,
+        FragCoordBuiltin = 15,
+        PointCoordBuiltin = 16,
+        FrontFacingBuiltin = 17,
+        SampleIdBuiltin = 18,
+        SamplePositionBuiltin = 19,
+        SampleMaskBuiltin = 20,
+        FragDepthBuiltin = 22,
+        NumWorkGroupsBuiltin = 24,
+        WorkgroupSizeBuiltin = 25,
+        WorkgroupIdBuiltin = 26,
+        LocalInvocationIdBuiltin = 27,
+        GlobalInvocationIdBuiltin = 28,
+        LocalInvocationIndexBuiltin = 29,
+        VertexIndexBuiltin = 42,
+        InstanceIndexBuiltin = 43
+    };
+
+    struct BuiltinVariable {
+        BuiltinType type;
+        VariableType varType;
+        QList<int> arrayDims;
+    };
+
+    QList<BuiltinVariable> inputBuiltinVariables() const;
+    QList<BuiltinVariable> outputBuiltinVariables() const;
+
+    std::array<uint, 3> computeShaderLocalSize() const;
+
+    uint tessellationOutputVertexCount() const;
+
+    enum TessellationMode {
+        UnknownTessellationMode,
+        TrianglesTessellationMode,
+        QuadTessellationMode,
+        IsolineTessellationMode
+    };
+
+    TessellationMode tessellationMode() const;
+
+    enum TessellationWindingOrder {
+        UnknownTessellationWindingOrder,
+        CwTessellationWindingOrder,
+        CcwTessellationWindingOrder
+    };
+
+    TessellationWindingOrder tessellationWindingOrder() const;
+
+    enum TessellationPartitioning {
+        UnknownTessellationPartitioning,
+        EqualTessellationPartitioning,
+        FractionalEvenTessellationPartitioning,
+        FractionalOddTessellationPartitioning
+    };
+
+    TessellationPartitioning tessellationPartitioning() const;
+
+private:
+    QShaderDescriptionPrivate *d;
+    friend struct QShaderDescriptionPrivate;
+#ifndef QT_NO_DEBUG_STREAM
+    friend Q_GUI_EXPORT QDebug operator<<(QDebug, const QShaderDescription &);
+#endif
+    friend Q_GUI_EXPORT bool operator==(const QShaderDescription &lhs, const QShaderDescription &rhs) noexcept;
+};
+
+Q_DECLARE_OPERATORS_FOR_FLAGS(QShaderDescription::ImageFlags)
+Q_DECLARE_OPERATORS_FOR_FLAGS(QShaderDescription::QualifierFlags)
+
+#ifndef QT_NO_DEBUG_STREAM
+Q_GUI_EXPORT QDebug operator<<(QDebug, const QShaderDescription &);
+Q_GUI_EXPORT QDebug operator<<(QDebug, const QShaderDescription::InOutVariable &);
+Q_GUI_EXPORT QDebug operator<<(QDebug, const QShaderDescription::BlockVariable &);
+Q_GUI_EXPORT QDebug operator<<(QDebug, const QShaderDescription::UniformBlock &);
+Q_GUI_EXPORT QDebug operator<<(QDebug, const QShaderDescription::PushConstantBlock &);
+Q_GUI_EXPORT QDebug operator<<(QDebug, const QShaderDescription::StorageBlock &);
+Q_GUI_EXPORT QDebug operator<<(QDebug, const QShaderDescription::BuiltinVariable &);
+#endif
+
+Q_GUI_EXPORT bool operator==(const QShaderDescription &lhs, const QShaderDescription &rhs) noexcept;
+Q_GUI_EXPORT bool operator==(const QShaderDescription::InOutVariable &lhs, const QShaderDescription::InOutVariable &rhs) noexcept;
+Q_GUI_EXPORT bool operator==(const QShaderDescription::BlockVariable &lhs, const QShaderDescription::BlockVariable &rhs) noexcept;
+Q_GUI_EXPORT bool operator==(const QShaderDescription::UniformBlock &lhs, const QShaderDescription::UniformBlock &rhs) noexcept;
+Q_GUI_EXPORT bool operator==(const QShaderDescription::PushConstantBlock &lhs, const QShaderDescription::PushConstantBlock &rhs) noexcept;
+Q_GUI_EXPORT bool operator==(const QShaderDescription::StorageBlock &lhs, const QShaderDescription::StorageBlock &rhs) noexcept;
+Q_GUI_EXPORT bool operator==(const QShaderDescription::BuiltinVariable &lhs, const QShaderDescription::BuiltinVariable &rhs) noexcept;
+
+inline bool operator!=(const QShaderDescription &lhs, const QShaderDescription &rhs) noexcept
+{
+    return !(lhs == rhs);
+}
+
+inline bool operator!=(const QShaderDescription::InOutVariable &lhs, const QShaderDescription::InOutVariable &rhs) noexcept
+{
+    return !(lhs == rhs);
+}
+
+inline bool operator!=(const QShaderDescription::BlockVariable &lhs, const QShaderDescription::BlockVariable &rhs) noexcept
+{
+    return !(lhs == rhs);
+}
+
+inline bool operator!=(const QShaderDescription::UniformBlock &lhs, const QShaderDescription::UniformBlock &rhs) noexcept
+{
+    return !(lhs == rhs);
+}
+
+inline bool operator!=(const QShaderDescription::PushConstantBlock &lhs, const QShaderDescription::PushConstantBlock &rhs) noexcept
+{
+    return !(lhs == rhs);
+}
+
+inline bool operator!=(const QShaderDescription::StorageBlock &lhs, const QShaderDescription::StorageBlock &rhs) noexcept
+{
+    return !(lhs == rhs);
+}
+
+inline bool operator!=(const QShaderDescription::BuiltinVariable &lhs, const QShaderDescription::BuiltinVariable &rhs) noexcept
+{
+    return !(lhs == rhs);
+}
+
+QT_END_NAMESPACE
+
+#endif
diff --git a/src/gui/rhi/qshaderdescription_p.h b/src/gui/rhi/qshaderdescription_p.h
index 13e72ad1..df694bbf 100644
--- a/src/gui/rhi/qshaderdescription_p.h
+++ b/src/gui/rhi/qshaderdescription_p.h
@@ -1,8 +1,8 @@
-// Copyright (C) 2021 The Qt Company Ltd.
+// Copyright (C) 2023 The Qt Company Ltd.
 // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
 
-#ifndef QSHADERDESCRIPTION_H
-#define QSHADERDESCRIPTION_H
+#ifndef QSHADERDESCRIPTION_P_H
+#define QSHADERDESCRIPTION_P_H
 
 //
 //  W A R N I N G
@@ -15,367 +15,67 @@
 // We mean it.
 //
 
-#include <QtGui/qtguiglobal.h>
-#include <QtCore/QString>
+#include <rhi/qshaderdescription.h>
 #include <QtCore/QList>
-#include <QtCore/private/qglobal_p.h>
-#include <array>
+#include <QtCore/QAtomicInt>
+#include <QtCore/QJsonDocument>
 
 QT_BEGIN_NAMESPACE
 
-struct QShaderDescriptionPrivate;
-class QDataStream;
-
-class Q_GUI_EXPORT QShaderDescription
+struct Q_GUI_EXPORT QShaderDescriptionPrivate
 {
-public:
-    QShaderDescription();
-    QShaderDescription(const QShaderDescription &other);
-    QShaderDescription &operator=(const QShaderDescription &other);
-    ~QShaderDescription();
-    void detach();
+    QShaderDescriptionPrivate()
+        : ref(1)
+    {
+    }
 
-    bool isValid() const;
+    QShaderDescriptionPrivate(const QShaderDescriptionPrivate &other)
+        : ref(1),
+          inVars(other.inVars),
+          outVars(other.outVars),
+          uniformBlocks(other.uniformBlocks),
+          pushConstantBlocks(other.pushConstantBlocks),
+          storageBlocks(other.storageBlocks),
+          combinedImageSamplers(other.combinedImageSamplers),
+          separateImages(other.separateImages),
+          separateSamplers(other.separateSamplers),
+          storageImages(other.storageImages),
+          inBuiltins(other.inBuiltins),
+          outBuiltins(other.outBuiltins),
+          localSize(other.localSize),
+          tessOutVertCount(other.tessOutVertCount),
+          tessMode(other.tessMode),
+          tessWind(other.tessWind),
+          tessPart(other.tessPart)
+    {
+    }
 
-    void serialize(QDataStream *stream, int version) const;
-    QByteArray toJson() const;
+    static QShaderDescriptionPrivate *get(QShaderDescription *desc) { return desc->d; }
+    static const QShaderDescriptionPrivate *get(const QShaderDescription *desc) { return desc->d; }
 
-    static QShaderDescription deserialize(QDataStream *stream, int version);
+    QJsonDocument makeDoc();
+    void writeToStream(QDataStream *stream, int version);
+    void loadFromStream(QDataStream *stream, int version);
 
-    enum VariableType {
-        Unknown = 0,
-
-        // do not reorder
-        Float,
-        Vec2,
-        Vec3,
-        Vec4,
-        Mat2,
-        Mat2x3,
-        Mat2x4,
-        Mat3,
-        Mat3x2,
-        Mat3x4,
-        Mat4,
-        Mat4x2,
-        Mat4x3,
-
-        Int,
-        Int2,
-        Int3,
-        Int4,
-
-        Uint,
-        Uint2,
-        Uint3,
-        Uint4,
-
-        Bool,
-        Bool2,
-        Bool3,
-        Bool4,
-
-        Double,
-        Double2,
-        Double3,
-        Double4,
-        DMat2,
-        DMat2x3,
-        DMat2x4,
-        DMat3,
-        DMat3x2,
-        DMat3x4,
-        DMat4,
-        DMat4x2,
-        DMat4x3,
-
-        Sampler1D,
-        Sampler2D,
-        Sampler2DMS,
-        Sampler3D,
-        SamplerCube,
-        Sampler1DArray,
-        Sampler2DArray,
-        Sampler2DMSArray,
-        Sampler3DArray,
-        SamplerCubeArray,
-        SamplerRect,
-        SamplerBuffer,
-        SamplerExternalOES,
-        Sampler,
-
-        Image1D,
-        Image2D,
-        Image2DMS,
-        Image3D,
-        ImageCube,
-        Image1DArray,
-        Image2DArray,
-        Image2DMSArray,
-        Image3DArray,
-        ImageCubeArray,
-        ImageRect,
-        ImageBuffer,
-
-        Struct
-    };
-
-    enum ImageFormat {
-        // must match SPIR-V's ImageFormat
-        ImageFormatUnknown = 0,
-        ImageFormatRgba32f = 1,
-        ImageFormatRgba16f = 2,
-        ImageFormatR32f = 3,
-        ImageFormatRgba8 = 4,
-        ImageFormatRgba8Snorm = 5,
-        ImageFormatRg32f = 6,
-        ImageFormatRg16f = 7,
-        ImageFormatR11fG11fB10f = 8,
-        ImageFormatR16f = 9,
-        ImageFormatRgba16 = 10,
-        ImageFormatRgb10A2 = 11,
-        ImageFormatRg16 = 12,
-        ImageFormatRg8 = 13,
-        ImageFormatR16 = 14,
-        ImageFormatR8 = 15,
-        ImageFormatRgba16Snorm = 16,
-        ImageFormatRg16Snorm = 17,
-        ImageFormatRg8Snorm = 18,
-        ImageFormatR16Snorm = 19,
-        ImageFormatR8Snorm = 20,
-        ImageFormatRgba32i = 21,
-        ImageFormatRgba16i = 22,
-        ImageFormatRgba8i = 23,
-        ImageFormatR32i = 24,
-        ImageFormatRg32i = 25,
-        ImageFormatRg16i = 26,
-        ImageFormatRg8i = 27,
-        ImageFormatR16i = 28,
-        ImageFormatR8i = 29,
-        ImageFormatRgba32ui = 30,
-        ImageFormatRgba16ui = 31,
-        ImageFormatRgba8ui = 32,
-        ImageFormatR32ui = 33,
-        ImageFormatRgb10a2ui = 34,
-        ImageFormatRg32ui = 35,
-        ImageFormatRg16ui = 36,
-        ImageFormatRg8ui = 37,
-        ImageFormatR16ui = 38,
-        ImageFormatR8ui = 39
-    };
-
-    enum ImageFlag {
-        ReadOnlyImage = 1 << 0,
-        WriteOnlyImage = 1 << 1
-    };
-    Q_DECLARE_FLAGS(ImageFlags, ImageFlag)
-
-    enum QualifierFlag {
-        QualifierReadOnly = 1 << 0,
-        QualifierWriteOnly = 1 << 1,
-        QualifierCoherent = 1 << 2,
-        QualifierVolatile = 1 << 3,
-        QualifierRestrict = 1 << 4,
-    };
-    Q_DECLARE_FLAGS(QualifierFlags, QualifierFlag)
-
-    // Optional data (like decorations) usually default to an otherwise invalid value (-1 or 0). This is intentional.
-
-    struct InOutVariable {
-        QByteArray name;
-        VariableType type = Unknown;
-        int location = -1;
-        int binding = -1;
-        int descriptorSet = -1;
-        ImageFormat imageFormat = ImageFormatUnknown;
-        ImageFlags imageFlags;
-        QList<int> arrayDims;
-        bool perPatch = false;
-    };
-
-    struct BlockVariable {
-        QByteArray name;
-        VariableType type = Unknown;
-        int offset = 0;
-        int size = 0;
-        QList<int> arrayDims;
-        int arrayStride = 0;
-        int matrixStride = 0;
-        bool matrixIsRowMajor = false;
-        QList<BlockVariable> structMembers;
-    };
-
-    struct UniformBlock {
-        QByteArray blockName;
-        QByteArray structName; // instanceName
-        int size = 0;
-        int binding = -1;
-        int descriptorSet = -1;
-        QList<BlockVariable> members;
-    };
-
-    struct PushConstantBlock {
-        QByteArray name;
-        int size = 0;
-        QList<BlockVariable> members;
-    };
-
-    struct StorageBlock {
-        QByteArray blockName;
-        QByteArray instanceName;
-        int knownSize = 0;
-        int binding = -1;
-        int descriptorSet = -1;
-        QList<BlockVariable> members;
-        int runtimeArrayStride = 0;
-        QualifierFlags qualifierFlags;
-    };
-
-    QList<InOutVariable> inputVariables() const;
-    QList<InOutVariable> outputVariables() const;
-    QList<UniformBlock> uniformBlocks() const;
-    QList<PushConstantBlock> pushConstantBlocks() const;
-    QList<StorageBlock> storageBlocks() const;
-    QList<InOutVariable> combinedImageSamplers() const;
-    QList<InOutVariable> separateImages() const;
-    QList<InOutVariable> separateSamplers() const;
-    QList<InOutVariable> storageImages() const;
-
-    enum BuiltinType {
-        // must match SpvBuiltIn
-        PositionBuiltin = 0,
-        PointSizeBuiltin = 1,
-        ClipDistanceBuiltin = 3,
-        CullDistanceBuiltin = 4,
-        VertexIdBuiltin = 5,
-        InstanceIdBuiltin = 6,
-        PrimitiveIdBuiltin = 7,
-        InvocationIdBuiltin = 8,
-        LayerBuiltin = 9,
-        ViewportIndexBuiltin = 10,
-        TessLevelOuterBuiltin = 11,
-        TessLevelInnerBuiltin = 12,
-        TessCoordBuiltin = 13,
-        PatchVerticesBuiltin = 14,
-        FragCoordBuiltin = 15,
-        PointCoordBuiltin = 16,
-        FrontFacingBuiltin = 17,
-        SampleIdBuiltin = 18,
-        SamplePositionBuiltin = 19,
-        SampleMaskBuiltin = 20,
-        FragDepthBuiltin = 22,
-        NumWorkGroupsBuiltin = 24,
-        WorkgroupSizeBuiltin = 25,
-        WorkgroupIdBuiltin = 26,
-        LocalInvocationIdBuiltin = 27,
-        GlobalInvocationIdBuiltin = 28,
-        LocalInvocationIndexBuiltin = 29,
-        VertexIndexBuiltin = 42,
-        InstanceIndexBuiltin = 43
-    };
-
-    struct BuiltinVariable {
-        BuiltinType type;
-    };
-
-    QList<BuiltinVariable> inputBuiltinVariables() const;
-    QList<BuiltinVariable> outputBuiltinVariables() const;
-
-    std::array<uint, 3> computeShaderLocalSize() const;
-
-    uint tessellationOutputVertexCount() const;
-
-    enum TessellationMode {
-        UnknownTessellationMode,
-        TrianglesTessellationMode,
-        QuadTessellationMode,
-        IsolineTessellationMode
-    };
-
-    TessellationMode tessellationMode() const;
-
-    enum TessellationWindingOrder {
-        UnknownTessellationWindingOrder,
-        CwTessellationWindingOrder,
-        CcwTessellationWindingOrder
-    };
-
-    TessellationWindingOrder tessellationWindingOrder() const;
-
-    enum TessellationPartitioning {
-        UnknownTessellationPartitioning,
-        EqualTessellationPartitioning,
-        FractionalEvenTessellationPartitioning,
-        FractionalOddTessellationPartitioning
-    };
-
-    TessellationPartitioning tessellationPartitioning() const;
-
-private:
-    QShaderDescriptionPrivate *d;
-    friend struct QShaderDescriptionPrivate;
-#ifndef QT_NO_DEBUG_STREAM
-    friend Q_GUI_EXPORT QDebug operator<<(QDebug, const QShaderDescription &);
-#endif
-    friend Q_GUI_EXPORT bool operator==(const QShaderDescription &lhs, const QShaderDescription &rhs) noexcept;
+    QAtomicInt ref;
+    QList<QShaderDescription::InOutVariable> inVars;
+    QList<QShaderDescription::InOutVariable> outVars;
+    QList<QShaderDescription::UniformBlock> uniformBlocks;
+    QList<QShaderDescription::PushConstantBlock> pushConstantBlocks;
+    QList<QShaderDescription::StorageBlock> storageBlocks;
+    QList<QShaderDescription::InOutVariable> combinedImageSamplers;
+    QList<QShaderDescription::InOutVariable> separateImages;
+    QList<QShaderDescription::InOutVariable> separateSamplers;
+    QList<QShaderDescription::InOutVariable> storageImages;
+    QList<QShaderDescription::BuiltinVariable> inBuiltins;
+    QList<QShaderDescription::BuiltinVariable> outBuiltins;
+    std::array<uint, 3> localSize = {};
+    uint tessOutVertCount = 0;
+    QShaderDescription::TessellationMode tessMode = QShaderDescription::UnknownTessellationMode;
+    QShaderDescription::TessellationWindingOrder tessWind = QShaderDescription::UnknownTessellationWindingOrder;
+    QShaderDescription::TessellationPartitioning tessPart = QShaderDescription::UnknownTessellationPartitioning;
 };
 
-Q_DECLARE_OPERATORS_FOR_FLAGS(QShaderDescription::ImageFlags)
-Q_DECLARE_OPERATORS_FOR_FLAGS(QShaderDescription::QualifierFlags)
-
-#ifndef QT_NO_DEBUG_STREAM
-Q_GUI_EXPORT QDebug operator<<(QDebug, const QShaderDescription &);
-Q_GUI_EXPORT QDebug operator<<(QDebug, const QShaderDescription::InOutVariable &);
-Q_GUI_EXPORT QDebug operator<<(QDebug, const QShaderDescription::BlockVariable &);
-Q_GUI_EXPORT QDebug operator<<(QDebug, const QShaderDescription::UniformBlock &);
-Q_GUI_EXPORT QDebug operator<<(QDebug, const QShaderDescription::PushConstantBlock &);
-Q_GUI_EXPORT QDebug operator<<(QDebug, const QShaderDescription::StorageBlock &);
-Q_GUI_EXPORT QDebug operator<<(QDebug, const QShaderDescription::BuiltinVariable &);
-#endif
-
-Q_GUI_EXPORT bool operator==(const QShaderDescription &lhs, const QShaderDescription &rhs) noexcept;
-Q_GUI_EXPORT bool operator==(const QShaderDescription::InOutVariable &lhs, const QShaderDescription::InOutVariable &rhs) noexcept;
-Q_GUI_EXPORT bool operator==(const QShaderDescription::BlockVariable &lhs, const QShaderDescription::BlockVariable &rhs) noexcept;
-Q_GUI_EXPORT bool operator==(const QShaderDescription::UniformBlock &lhs, const QShaderDescription::UniformBlock &rhs) noexcept;
-Q_GUI_EXPORT bool operator==(const QShaderDescription::PushConstantBlock &lhs, const QShaderDescription::PushConstantBlock &rhs) noexcept;
-Q_GUI_EXPORT bool operator==(const QShaderDescription::StorageBlock &lhs, const QShaderDescription::StorageBlock &rhs) noexcept;
-Q_GUI_EXPORT bool operator==(const QShaderDescription::BuiltinVariable &lhs, const QShaderDescription::BuiltinVariable &rhs) noexcept;
-
-inline bool operator!=(const QShaderDescription &lhs, const QShaderDescription &rhs) noexcept
-{
-    return !(lhs == rhs);
-}
-
-inline bool operator!=(const QShaderDescription::InOutVariable &lhs, const QShaderDescription::InOutVariable &rhs) noexcept
-{
-    return !(lhs == rhs);
-}
-
-inline bool operator!=(const QShaderDescription::BlockVariable &lhs, const QShaderDescription::BlockVariable &rhs) noexcept
-{
-    return !(lhs == rhs);
-}
-
-inline bool operator!=(const QShaderDescription::UniformBlock &lhs, const QShaderDescription::UniformBlock &rhs) noexcept
-{
-    return !(lhs == rhs);
-}
-
-inline bool operator!=(const QShaderDescription::PushConstantBlock &lhs, const QShaderDescription::PushConstantBlock &rhs) noexcept
-{
-    return !(lhs == rhs);
-}
-
-inline bool operator!=(const QShaderDescription::StorageBlock &lhs, const QShaderDescription::StorageBlock &rhs) noexcept
-{
-    return !(lhs == rhs);
-}
-
-inline bool operator!=(const QShaderDescription::BuiltinVariable &lhs, const QShaderDescription::BuiltinVariable &rhs) noexcept
-{
-    return !(lhs == rhs);
-}
-
 QT_END_NAMESPACE
 
 #endif
diff --git a/src/gui/rhi/qshaderdescription_p_p.h b/src/gui/rhi/qshaderdescription_p_p.h
deleted file mode 100644
index c22ddda8..00000000
--- a/src/gui/rhi/qshaderdescription_p_p.h
+++ /dev/null
@@ -1,81 +0,0 @@
-// Copyright (C) 2019 The Qt Company Ltd.
-// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
-
-#ifndef QSHADERDESCRIPTION_P_H
-#define QSHADERDESCRIPTION_P_H
-
-//
-//  W A R N I N G
-//  -------------
-//
-// This file is not part of the Qt API.  It exists for the convenience
-// of a number of Qt sources files.  This header file may change from
-// version to version without notice, or even be removed.
-//
-// We mean it.
-//
-
-#include "qshaderdescription_p.h"
-#include <QtCore/QList>
-#include <QtCore/QAtomicInt>
-#include <QtCore/QJsonDocument>
-
-QT_BEGIN_NAMESPACE
-
-struct Q_GUI_EXPORT QShaderDescriptionPrivate
-{
-    QShaderDescriptionPrivate()
-        : ref(1)
-    {
-    }
-
-    QShaderDescriptionPrivate(const QShaderDescriptionPrivate &other)
-        : ref(1),
-          inVars(other.inVars),
-          outVars(other.outVars),
-          uniformBlocks(other.uniformBlocks),
-          pushConstantBlocks(other.pushConstantBlocks),
-          storageBlocks(other.storageBlocks),
-          combinedImageSamplers(other.combinedImageSamplers),
-          separateImages(other.separateImages),
-          separateSamplers(other.separateSamplers),
-          storageImages(other.storageImages),
-          inBuiltins(other.inBuiltins),
-          outBuiltins(other.outBuiltins),
-          localSize(other.localSize),
-          tessOutVertCount(other.tessOutVertCount),
-          tessMode(other.tessMode),
-          tessWind(other.tessWind),
-          tessPart(other.tessPart)
-    {
-    }
-
-    static QShaderDescriptionPrivate *get(QShaderDescription *desc) { return desc->d; }
-    static const QShaderDescriptionPrivate *get(const QShaderDescription *desc) { return desc->d; }
-
-    QJsonDocument makeDoc();
-    void writeToStream(QDataStream *stream, int version);
-    void loadFromStream(QDataStream *stream, int version);
-
-    QAtomicInt ref;
-    QList<QShaderDescription::InOutVariable> inVars;
-    QList<QShaderDescription::InOutVariable> outVars;
-    QList<QShaderDescription::UniformBlock> uniformBlocks;
-    QList<QShaderDescription::PushConstantBlock> pushConstantBlocks;
-    QList<QShaderDescription::StorageBlock> storageBlocks;
-    QList<QShaderDescription::InOutVariable> combinedImageSamplers;
-    QList<QShaderDescription::InOutVariable> separateImages;
-    QList<QShaderDescription::InOutVariable> separateSamplers;
-    QList<QShaderDescription::InOutVariable> storageImages;
-    QList<QShaderDescription::BuiltinVariable> inBuiltins;
-    QList<QShaderDescription::BuiltinVariable> outBuiltins;
-    std::array<uint, 3> localSize = {};
-    uint tessOutVertCount = 0;
-    QShaderDescription::TessellationMode tessMode = QShaderDescription::UnknownTessellationMode;
-    QShaderDescription::TessellationWindingOrder tessWind = QShaderDescription::UnknownTessellationWindingOrder;
-    QShaderDescription::TessellationPartitioning tessPart = QShaderDescription::UnknownTessellationPartitioning;
-};
-
-QT_END_NAMESPACE
-
-#endif
diff --git a/src/gui/rhi/qt_attribution.json b/src/gui/rhi/qt_attribution.json
new file mode 100644
index 00000000..c356f5f0
--- /dev/null
+++ b/src/gui/rhi/qt_attribution.json
@@ -0,0 +1,16 @@
+[
+    {
+        "Id": "rhi-miniengine-d3d12-mipmap",
+        "Name": "Mipmap generator for D3D12",
+        "QDocModule": "qtgui",
+        "Description": "Compute shader for mipmap generation from MiniEngine in DirectX-Graphics-Samples",
+        "QtUsage": "Compute shader for mipmap generation with Direct 3D 12",
+
+        "Homepage": "https://github.com/microsoft/DirectX-Graphics-Samples",
+        "Version": "0aa79bad78992da0b6a8279ddb9002c1753cb849",
+        "License": "MIT License",
+        "LicenseId": "MIT",
+        "LicenseFile": "MiniEngine_LICENSE.txt",
+        "Copyright": "Copyright (c) 2015 Microsoft"
+    }
+]
diff --git a/src/gui/rhi/tdr.hlsl b/src/gui/rhi/tdr.hlsl
deleted file mode 100644
index f79de91c..00000000
--- a/src/gui/rhi/tdr.hlsl
+++ /dev/null
@@ -1,9 +0,0 @@
-RWBuffer<uint> uav;
-cbuffer ConstantBuffer { uint zero; }
-
-[numthreads(256, 1, 1)]
-void killDeviceByTimingOut(uint3 id: SV_DispatchThreadID)
-{
-    while (zero == 0)
-        uav[id.x] = zero;
-}
diff --git a/src/gui/text/coretext/qfontengine_coretext.mm b/src/gui/text/coretext/qfontengine_coretext.mm
index 599a7f08..6cdba260 100644
--- a/src/gui/text/coretext/qfontengine_coretext.mm
+++ b/src/gui/text/coretext/qfontengine_coretext.mm
@@ -12,6 +12,8 @@
 #include <QtGui/qpainterpath.h>
 #include <private/qcoregraphics_p.h>
 #include <private/qimage_p.h>
+#include <private/qguiapplication_p.h>
+#include <qpa/qplatformtheme.h>
 
 #include <cmath>
 
@@ -716,10 +718,12 @@ QImage QCoreTextFontEngine::imageForGlyph(glyph_t glyph, const QFixedPoint &subP
             // draw with white or black fill, and then invert the glyph image in the latter case,
             // producing an alpha map. This covers the most common use-cases, but longer term we
             // should propagate the fill color all the way from the paint engine, and include it
-            //in the key for the glyph cache.
+            // in the key for the glyph cache.
 
-            if (!qt_mac_applicationIsInDarkMode())
-                return kCGColorBlack;
+            if (auto *platformTheme = QGuiApplicationPrivate::platformTheme()) {
+                if (platformTheme->colorScheme() != Qt::ColorScheme::Dark)
+                    return kCGColorBlack;
+            }
         }
         return kCGColorWhite;
     }();
diff --git a/src/gui/text/qcssparser.cpp b/src/gui/text/qcssparser.cpp
index f79369a3..2082263d 100644
--- a/src/gui/text/qcssparser.cpp
+++ b/src/gui/text/qcssparser.cpp
@@ -47,6 +47,7 @@ static const QCssKnownValue properties[NumProperties - 1] = {
     { "-qt-style-features", QtStyleFeatures },
     { "-qt-table-type", QtTableType },
     { "-qt-user-state", QtUserState },
+    { "accent-color", QtAccent },
     { "alternate-background-color", QtAlternateBackground },
     { "background", Background },
     { "background-attachment", BackgroundAttachment },
@@ -1341,17 +1342,23 @@ bool ValueExtractor::extractFont(QFont *font, int *fontSizeAdjustment)
     return hit;
 }
 
-bool ValueExtractor::extractPalette(QBrush *fg, QBrush *sfg, QBrush *sbg, QBrush *abg, QBrush *pfg)
+bool ValueExtractor::extractPalette(QBrush *foreground,
+                                    QBrush *selectedForeground,
+                                    QBrush *selectedBackground,
+                                    QBrush *alternateBackground,
+                                    QBrush *placeHolderTextForeground,
+                                    QBrush *accent)
 {
     bool hit = false;
     for (int i = 0; i < declarations.size(); ++i) {
         const Declaration &decl = declarations.at(i);
         switch (decl.d->propertyId) {
-        case Color: *fg = decl.brushValue(pal); break;
-        case QtSelectionForeground: *sfg = decl.brushValue(pal); break;
-        case QtSelectionBackground: *sbg = decl.brushValue(pal); break;
-        case QtAlternateBackground: *abg = decl.brushValue(pal); break;
-        case QtPlaceHolderTextColor: *pfg = decl.brushValue(pal); break;
+        case Color: *foreground = decl.brushValue(pal); break;
+        case QtSelectionForeground: *selectedForeground = decl.brushValue(pal); break;
+        case QtSelectionBackground: *selectedBackground = decl.brushValue(pal); break;
+        case QtAlternateBackground: *alternateBackground = decl.brushValue(pal); break;
+        case QtPlaceHolderTextColor: *placeHolderTextForeground = decl.brushValue(pal); break;
+        case QtAccent: *accent = decl.brushValue(pal); break;
         default: continue;
         }
         hit = true;
diff --git a/src/gui/text/qcssparser_p.h b/src/gui/text/qcssparser_p.h
index 8e4c7ce6..1369bdf1 100644
--- a/src/gui/text/qcssparser_p.h
+++ b/src/gui/text/qcssparser_p.h
@@ -166,6 +166,7 @@ enum Property {
     WordSpacing,
     TextDecorationColor,
     QtPlaceHolderTextColor,
+    QtAccent,
     NumProperties
 };
 
@@ -823,7 +824,9 @@ struct Q_GUI_EXPORT ValueExtractor
     bool extractBox(int *margins, int *paddings, int *spacing = nullptr);
     bool extractBorder(int *borders, QBrush *colors, BorderStyle *Styles, QSize *radii);
     bool extractOutline(int *borders, QBrush *colors, BorderStyle *Styles, QSize *radii, int *offsets);
-    bool extractPalette(QBrush *fg, QBrush *sfg, QBrush *sbg, QBrush *abg, QBrush *pfg);
+    bool extractPalette(QBrush *foreground, QBrush *selectedForeground, QBrush *selectedBackground,
+                        QBrush *alternateBackground, QBrush *placeHolderTextForeground,
+                        QBrush *accent);
     int  extractStyleFeatures();
     bool extractImage(QIcon *icon, Qt::Alignment *a, QSize *size);
     bool extractIcon(QIcon *icon, QSize *size);
diff --git a/src/gui/text/qfont.cpp b/src/gui/text/qfont.cpp
index 78e9e3e3..eeb67903 100644
--- a/src/gui/text/qfont.cpp
+++ b/src/gui/text/qfont.cpp
@@ -213,7 +213,7 @@ QFontPrivate::QFontPrivate(const QFontPrivate &other)
       strikeOut(other.strikeOut), kerning(other.kerning),
       capital(other.capital), letterSpacingIsAbsolute(other.letterSpacingIsAbsolute),
       letterSpacing(other.letterSpacing), wordSpacing(other.wordSpacing),
-      scFont(other.scFont)
+      features(other.features), scFont(other.scFont)
 {
     if (scFont && scFont != this)
         scFont->ref.ref();
@@ -343,9 +343,20 @@ void QFontPrivate::resolve(uint mask, const QFontPrivate *other)
         wordSpacing = other->wordSpacing;
     if (! (mask & QFont::CapitalizationResolved))
         capital = other->capital;
+
+    if (!(mask & QFont::FeaturesResolved))
+        features = other->features;
 }
 
+void QFontPrivate::setFeature(quint32 tag, quint32 value)
+{
+    features.insert(tag, value);
+}
 
+void QFontPrivate::unsetFeature(quint32 tag)
+{
+    features.remove(tag);
+}
 
 
 QFontEngineData::QFontEngineData()
@@ -1746,6 +1757,7 @@ bool QFont::operator==(const QFont &f) const
                 && f.d->letterSpacingIsAbsolute == d->letterSpacingIsAbsolute
                 && f.d->letterSpacing == d->letterSpacing
                 && f.d->wordSpacing == d->wordSpacing
+                && f.d->features == d->features
             ));
 }
 
@@ -1783,7 +1795,21 @@ bool QFont::operator<(const QFont &f) const
 
     int f1attrs = (f.d->underline << 3) + (f.d->overline << 2) + (f.d->strikeOut<<1) + f.d->kerning;
     int f2attrs = (d->underline << 3) + (d->overline << 2) + (d->strikeOut<<1) + d->kerning;
-    return f1attrs < f2attrs;
+    if (f1attrs != f2attrs) return f1attrs < f2attrs;
+
+    if (d->features.size() != f.d->features.size())
+        return f.d->features.size() < d->features.size();
+
+    auto it = d->features.constBegin();
+    auto jt = f.d->features.constBegin();
+    for (; it != d->features.constEnd(); ++it, ++jt) {
+        if (it.key() != jt.key())
+            return jt.key() < it.key();
+        if (it.value() != jt.value())
+            return jt.value() < it.value();
+    }
+
+    return false;
 }
 
 
@@ -2204,6 +2230,221 @@ void QFont::cacheStatistics()
 {
 }
 
+/*!
+    \since 6.6
+    \overload
+    \preliminary
+
+    Applies an integer value to a specific typographical feature when shaping the text. This
+    provides advanced access to the font shaping process, and can be used to support font features
+    that are otherwise not covered in the API.
+
+    A feature is defined by a 32-bit \a tag (encoded from the four-character name of the table by
+    using the stringToTag() function), as well as an integer value.
+
+    This integer \a value passed along with the tag in most cases represents a boolean value: A zero
+    value means the feature is disabled, and a non-zero value means it is enabled. For certain
+    font features, however, it may have other intepretations. For example, when applied to the
+    \c salt feature, the value is an index that specifies the stylistic alternative to use.
+
+    For example, the \c frac font feature will convert diagonal fractions separated with a slash
+    (such as \c 1/2) with a different representation. Typically this will involve baking the full
+    fraction into a single character width (such as \c ½).
+
+    If a font supports the \c frac feature, then it can be enabled in the shaper by setting
+    \c{features[stringToTag("frac")] = 1} in the font feature map.
+
+    \note By default, Qt will enable and disable certain font features based on other font
+    properties. In particular, the \c kern feature will be enabled/disabled depending on the
+    \l kerning() property of the QFont. In addition, all ligature features
+    (\c liga, \c clig, \c dlig, \c hlig) will be disabled if a \l letterSpacing() is applied,
+    but only for writing systems where the use of ligature is cosmetic. For writing systems where
+    ligatures are required, the features will remain in their default state. The values set using
+    setFeature() and related functions will override the default behavior. If, for instance,
+    the feature "kern" is set to 1, then kerning will always be enabled, regardless of whether the
+    kerning property is set to false. Similarly, if it is set to 0, then it will always be disabled.
+    To reset a font feature to its default behavior, you can unset it using unsetFeature().
+
+    \sa clearFeatures(), setFeature(), unsetFeature(), featureTags(), stringToTag()
+*/
+void QFont::setFeature(quint32 tag, quint32 value)
+{
+    if (tag != 0) {
+        d->detachButKeepEngineData(this);
+        d->setFeature(tag, value);
+        resolve_mask |= QFont::FeaturesResolved;
+    }
+}
+
+/*!
+    \since 6.6
+    \overload
+    \preliminary
+
+    Sets the \a value of a specific \a feature. This is an advanced feature which can be used to
+    enable or disable specific OpenType features if they are available in the font.
+
+    See \l setFeature(quint32, quint32) for more details on font features.
+
+    \note This is equivalent to calling setFeature(stringToTag(feature), value).
+
+    \sa clearFeatures(), unsetFeature(), featureTags(), featureValue(), stringToTag()
+*/
+void QFont::setFeature(const char *feature, quint32 value)
+{
+    setFeature(stringToTag(feature), value);
+}
+
+/*!
+    \since 6.6
+    \overload
+    \preliminary
+
+    Unsets the \a tag from the map of explicitly enabled/disabled features.
+
+    \note Even if the feature has not previously been added, this will mark the font features map
+    as modified in this QFont, so that it will take precedence when resolving against other fonts.
+
+    Unsetting an existing feature on the QFont reverts behavior to the default.
+
+    See \l setFeature(quint32, quint32) for more details on font features.
+
+    \sa clearFeatures(), setFeature(), featureTags(), featureValue(), stringToTag()
+*/
+void QFont::unsetFeature(quint32 tag)
+{
+    if (tag != 0) {
+        d->detachButKeepEngineData(this);
+        d->unsetFeature(tag);
+        resolve_mask |= QFont::FeaturesResolved;
+    }
+}
+
+/*!
+    \since 6.6
+    \overload
+    \preliminary
+
+    Unsets the \a feature from the map of explicitly enabled/disabled features.
+
+    \note Even if the feature has not previously been added, this will mark the font features map
+    as modified in this QFont, so that it will take precedence when resolving against other fonts.
+
+    Unsetting an existing feature on the QFont reverts behavior to the default.
+
+    See \l setFeature(quint32, quint32) for more details on font features.
+
+    \note This is equivalent to calling unsetFeature(stringToTag(feature)).
+
+    \sa clearFeatures(), setFeature(), featureTags(), featureValue(), stringToTag()
+*/
+void QFont::unsetFeature(const char *feature)
+{
+    unsetFeature(stringToTag(feature));
+}
+
+/*!
+   \since 6.6
+   \preliminary
+
+   Returns a list of tags for all font features currently set on this QFont.
+
+   See \l setFeature(quint32, quint32) for more details on font features.
+
+   \sa setFeature(), unsetFeature(), isFeatureSet(), clearFeatures(), tagToString()
+*/
+QList<quint32> QFont::featureTags() const
+{
+    return d->features.keys();
+}
+
+/*!
+   \since 6.6
+   \preliminary
+
+   Returns the value set for a specific feature \a tag. If the tag has not been set, 0 will be
+   returned instead.
+
+   See \l setFeature(quint32, quint32) for more details on font features.
+
+   \sa setFeature(), unsetFeature(), featureTags(), isFeatureSet(), stringToTag()
+*/
+quint32 QFont::featureValue(quint32 tag) const
+{
+    return d->features.value(tag);
+}
+
+/*!
+   \since 6.6
+   \preliminary
+
+   Returns true if a value for the feature given by \a tag has been set on the QFont, otherwise
+   returns false.
+
+   See \l setFeature(quint32, quint32) for more details on font features.
+
+   \sa setFeature(), unsetFeature(), featureTags(), featureValue(), stringToTag()
+*/
+bool QFont::isFeatureSet(quint32 tag) const
+{
+    return d->features.contains(tag);
+}
+
+/*!
+   \since 6.6
+   \preliminary
+
+   Clears any previously set features on the QFont.
+
+   See \l setFeature(quint32, quint32) for more details on font features.
+
+   \sa setFeature(), unsetFeature(), featureTags(), featureValue()
+*/
+void QFont::clearFeatures()
+{
+    d->features.clear();
+}
+
+/*!
+    \since 6.6
+    \preliminary
+
+    Returns the decoded name for \a tag as defined in the OpenType font specification. The tag
+    is decoded into four 8 bit characters. For valid tags, each will be in the basic Latin range of
+    0x20 to 0x7E.
+
+    \sa setFeature(), unsetFeature(), featureTags(), featureValue(), stringToTag()
+*/
+QByteArray QFont::tagToString(quint32 tag)
+{
+    char str[4] =
+        { char((tag & 0xff000000) >> 24),
+          char((tag & 0x00ff0000) >> 16),
+          char((tag & 0x0000ff00) >> 8),
+          char((tag & 0x000000ff)) };
+    return QByteArray(str, 4);
+}
+
+/*!
+    \since 6.6
+    \preliminary
+
+    Returns the encoded tag for \a name as defined in the OpenType font specification. The name
+    must be a null-terminated string of four characters exactly, and in order to be a valid tag,
+    each character must be in the basic Latin range of 0x20 to 0x7E.
+
+    The function returns 0 for strings of the wrong length, but does not otherwise check the input
+    for validity.
+
+    \sa setFeature(), unsetFeature(), featureTags(), featureValue(), tagToString()
+*/
+quint32 QFont::stringToTag(const char *name)
+{
+    if (qstrlen(name) != 4)
+        return 0;
+
+    return MAKE_TAG(name[0], name[1], name[2], name[3]);
+}
 
 extern QStringList qt_fallbacksForFamily(const QString &family, QFont::Style style,
                                          QFont::StyleHint styleHint, QChar::Script script);
@@ -2341,6 +2582,8 @@ QDataStream &operator<<(QDataStream &s, const QFont &font)
         else
             s << font.d->request.families;
     }
+    if (s.version() >= QDataStream::Qt_6_6)
+        s << font.d->features;
     return s;
 }
 
@@ -2455,6 +2698,11 @@ QDataStream &operator>>(QDataStream &s, QFont &font)
         else
             font.d->request.families = value;
     }
+    if (s.version() >= QDataStream::Qt_6_6) {
+        font.d->features.clear();
+        s >> font.d->features;
+    }
+
     return s;
 }
 
@@ -2794,13 +3042,15 @@ bool QFontInfo::exactMatch() const
 // QFontCache
 // **********************************************************************
 
+using namespace std::chrono_literals;
+
 #ifdef QFONTCACHE_DEBUG
 // fast timeouts for debugging
-static const int fast_timeout =   1000;  // 1s
-static const int slow_timeout =   5000;  // 5s
+static constexpr auto fast_timeout =   1s;
+static constexpr auto slow_timeout =   5s;
 #else
-static const int fast_timeout =  10000; // 10s
-static const int slow_timeout = 300000; //  5m
+static constexpr auto fast_timeout =  10s;
+static constexpr auto slow_timeout = 5min;
 #endif // QFONTCACHE_DEBUG
 
 #ifndef QFONTCACHE_MIN_COST
@@ -3010,7 +3260,7 @@ void QFontCache::increaseCost(uint cost)
             return;
 
         if (timer_id == -1 || ! fast) {
-            FC_DEBUG("  TIMER: starting fast timer (%d ms)", fast_timeout);
+            FC_DEBUG("  TIMER: starting fast timer (%d s)", static_cast<int>(fast_timeout.count()));
 
             if (timer_id != -1)
                 killTimer(timer_id);
diff --git a/src/gui/text/qfont.h b/src/gui/text/qfont.h
index 7fb591b5..e84fbe20 100644
--- a/src/gui/text/qfont.h
+++ b/src/gui/text/qfont.h
@@ -4,10 +4,10 @@
 #ifndef QFONT_H
 #define QFONT_H
 
+#include <QtCore/qshareddata.h>
 #include <QtGui/qtguiglobal.h>
 #include <QtGui/qwindowdefs.h>
 #include <QtCore/qstring.h>
-#include <QtCore/qsharedpointer.h>
 
 
 QT_BEGIN_NAMESPACE
@@ -126,7 +126,8 @@ public:
         HintingPreferenceResolved   = 0x8000,
         StyleNameResolved           = 0x10000,
         FamiliesResolved            = 0x20000,
-        AllPropertiesResolved       = 0x3ffff
+        FeaturesResolved            = 0x40000,
+        AllPropertiesResolved       = 0x7ffff
     };
     Q_ENUM(ResolveProperties)
 
@@ -206,6 +207,20 @@ public:
     void setHintingPreference(HintingPreference hintingPreference);
     HintingPreference hintingPreference() const;
 
+    // Note: The following set of APIs are preliminary and may change in future releases
+    void setFeature(const char *feature, quint32 value);
+    void setFeature(quint32 tag, quint32 value);
+    void unsetFeature(quint32 tag);
+    void unsetFeature(const char *feature);
+    quint32 featureValue(quint32 tag) const;
+    bool isFeatureSet(quint32 tag) const;
+    QList<quint32> featureTags() const;
+    void clearFeatures();
+
+    static QByteArray tagToString(quint32 tag);
+    static quint32 stringToTag(const char *tagString);
+    // --
+
     // dupicated from QFontInfo
     bool exactMatch() const;
 
diff --git a/src/gui/text/qfont_p.h b/src/gui/text/qfont_p.h
index 13738bb0..3596322f 100644
--- a/src/gui/text/qfont_p.h
+++ b/src/gui/text/qfont_p.h
@@ -164,6 +164,7 @@ public:
 
     QFixed letterSpacing;
     QFixed wordSpacing;
+    QHash<quint32, quint32> features;
 
     mutable QFontPrivate *scFont;
     QFont smallCapsFont() const { return QFont(smallCapsFontPrivate()); }
@@ -178,6 +179,9 @@ public:
 
     static void detachButKeepEngineData(QFont *font);
 
+    void setFeature(quint32 tag, quint32 value);
+    void unsetFeature(quint32 tag);
+
 private:
     QFontPrivate &operator=(const QFontPrivate &) { return *this; }
 };
diff --git a/src/gui/text/qfontengine.cpp b/src/gui/text/qfontengine.cpp
index 5035b61f..a402a6a0 100644
--- a/src/gui/text/qfontengine.cpp
+++ b/src/gui/text/qfontengine.cpp
@@ -1471,10 +1471,10 @@ bool QFontEngine::hasUnreliableGlyphOutline() const
 
 QFixed QFontEngine::firstLeftBearing(const QGlyphLayout &glyphs)
 {
-    if (glyphs.numGlyphs >= 1) {
-        glyph_t glyph = glyphs.glyphs[0];
+    for (int i = 0; i < glyphs.numGlyphs; ++i) {
+        glyph_t glyph = glyphs.glyphs[i];
         glyph_metrics_t gi = boundingBox(glyph);
-        if (gi.isValid())
+        if (gi.isValid() && gi.width > 0)
             return gi.leftBearing();
     }
     return 0;
diff --git a/src/gui/text/qfontengineglyphcache_p.h b/src/gui/text/qfontengineglyphcache_p.h
index b829b797..9054ea59 100644
--- a/src/gui/text/qfontengineglyphcache_p.h
+++ b/src/gui/text/qfontengineglyphcache_p.h
@@ -15,7 +15,7 @@
 // We mean it.
 //
 
-
+#include <QtCore/qshareddata.h>
 #include <QtGui/private/qtguiglobal_p.h>
 #include "QtCore/qatomic.h"
 #include <QtCore/qvarlengtharray.h>
diff --git a/src/gui/text/qfontinfo.h b/src/gui/text/qfontinfo.h
index 5818ca0d..0edee5ab 100644
--- a/src/gui/text/qfontinfo.h
+++ b/src/gui/text/qfontinfo.h
@@ -6,7 +6,8 @@
 
 #include <QtGui/qtguiglobal.h>
 #include <QtGui/qfont.h>
-#include <QtCore/qsharedpointer.h>
+
+#include <QtCore/qshareddata.h>
 
 QT_BEGIN_NAMESPACE
 
diff --git a/src/gui/text/qfontmetrics.h b/src/gui/text/qfontmetrics.h
index 18b54861..1942d1fa 100644
--- a/src/gui/text/qfontmetrics.h
+++ b/src/gui/text/qfontmetrics.h
@@ -6,10 +6,11 @@
 
 #include <QtGui/qtguiglobal.h>
 #include <QtGui/qfont.h>
-#include <QtCore/qsharedpointer.h>
+
 #ifndef QT_INCLUDE_COMPAT
 #include <QtCore/qrect.h>
 #endif
+#include <QtCore/qshareddata.h>
 
 QT_BEGIN_NAMESPACE
 
diff --git a/src/gui/text/qglyphrun.h b/src/gui/text/qglyphrun.h
index a338a35b..88f9957d 100644
--- a/src/gui/text/qglyphrun.h
+++ b/src/gui/text/qglyphrun.h
@@ -7,8 +7,8 @@
 #include <QtGui/qtguiglobal.h>
 #include <QtCore/qlist.h>
 #include <QtCore/qpoint.h>
-#include <QtCore/qsharedpointer.h>
 #include <QtGui/qrawfont.h>
+#include <QtCore/qshareddata.h>
 
 #if !defined(QT_NO_RAWFONT)
 
diff --git a/src/gui/text/qglyphrun_p.h b/src/gui/text/qglyphrun_p.h
index c95ec8ab..db160344 100644
--- a/src/gui/text/qglyphrun_p.h
+++ b/src/gui/text/qglyphrun_p.h
@@ -15,6 +15,7 @@
 // We mean it.
 //
 
+#include <QtCore/qshareddata.h>
 #include <QtGui/private/qtguiglobal_p.h>
 #include "qglyphrun.h"
 #include "qrawfont.h"
diff --git a/src/gui/text/qplatformfontdatabase.h b/src/gui/text/qplatformfontdatabase.h
index 8527e7b3..a5e65086 100644
--- a/src/gui/text/qplatformfontdatabase.h
+++ b/src/gui/text/qplatformfontdatabase.h
@@ -25,7 +25,7 @@
 
 QT_BEGIN_NAMESPACE
 
-Q_DECLARE_LOGGING_CATEGORY(lcQpaFonts)
+Q_DECLARE_EXPORTED_LOGGING_CATEGORY(lcQpaFonts, Q_GUI_EXPORT)
 
 class QWritingSystemsPrivate;
 
diff --git a/src/gui/text/qsyntaxhighlighter.cpp b/src/gui/text/qsyntaxhighlighter.cpp
index b974a1d3..6c1e2e74 100644
--- a/src/gui/text/qsyntaxhighlighter.cpp
+++ b/src/gui/text/qsyntaxhighlighter.cpp
@@ -219,7 +219,7 @@ void QSyntaxHighlighterPrivate::reformatBlock(const QTextBlock &block)
     an int value. If no state is set, the returned value is -1. You
     can designate any other value to identify any given state using
     the setCurrentBlockState() function. Once the state is set the
-    QTextBlock keeps that value until it is set set again or until the
+    QTextBlock keeps that value until it is set again or until the
     corresponding paragraph of text is deleted.
 
     For example, if you're writing a simple C++ syntax highlighter,
diff --git a/src/gui/text/qtextdocument.cpp b/src/gui/text/qtextdocument.cpp
index a6675422..e5dc5136 100644
--- a/src/gui/text/qtextdocument.cpp
+++ b/src/gui/text/qtextdocument.cpp
@@ -1826,9 +1826,10 @@ void QTextDocument::setBaselineOffset(qreal baseline)
     \fn qreal QTextDocument::baselineOffset() const
     \since 6.0
 
-    Returns the the baseline offset in % used in the document layout.
+    Returns the baseline offset in % used in the document layout.
 
-    \sa setBaselineOffset(), setSubScriptBaseline(), subScriptBaseline(), setSuperScriptBaseline(), superScriptBaseline()
+    \sa setBaselineOffset(), setSubScriptBaseline(), subScriptBaseline(), setSuperScriptBaseline(),
+   superScriptBaseline()
 */
 qreal QTextDocument::baselineOffset() const
 {
@@ -2995,18 +2996,25 @@ void QTextHtmlExporter::emitBlock(const QTextBlock &block)
         if (list->itemNumber(block) == 0) { // first item? emit <ul> or appropriate
             const QTextListFormat format = list->format();
             const int style = format.style();
+            bool ordered = false;
             switch (style) {
-                case QTextListFormat::ListDecimal: html += "<ol"_L1; break;
                 case QTextListFormat::ListDisc: html += "<ul"_L1; break;
                 case QTextListFormat::ListCircle: html += "<ul type=\"circle\""_L1; break;
                 case QTextListFormat::ListSquare: html += "<ul type=\"square\""_L1; break;
-                case QTextListFormat::ListLowerAlpha: html += "<ol type=\"a\""_L1; break;
-                case QTextListFormat::ListUpperAlpha: html += "<ol type=\"A\""_L1; break;
-                case QTextListFormat::ListLowerRoman: html += "<ol type=\"i\""_L1; break;
-                case QTextListFormat::ListUpperRoman: html += "<ol type=\"I\""_L1; break;
+                case QTextListFormat::ListDecimal: html += "<ol"_L1; ordered = true; break;
+                case QTextListFormat::ListLowerAlpha: html += "<ol type=\"a\""_L1; ordered = true; break;
+                case QTextListFormat::ListUpperAlpha: html += "<ol type=\"A\""_L1; ordered = true; break;
+                case QTextListFormat::ListLowerRoman: html += "<ol type=\"i\""_L1; ordered = true; break;
+                case QTextListFormat::ListUpperRoman: html += "<ol type=\"I\""_L1; ordered = true; break;
                 default: html += "<ul"_L1; // ### should not happen
             }
 
+            if (ordered && format.start() != 1) {
+                html += " start=\""_L1;
+                html += QString::number(format.start());
+                html += u'"';
+            }
+
             QString styleString = QString::fromLatin1("margin-top: 0px; margin-bottom: 0px; margin-left: 0px; margin-right: 0px;");
 
             if (format.hasProperty(QTextFormat::ListIndent)) {
diff --git a/src/gui/text/qtextdocumentfragment.cpp b/src/gui/text/qtextdocumentfragment.cpp
index 7d8b2eaa..9e999929 100644
--- a/src/gui/text/qtextdocumentfragment.cpp
+++ b/src/gui/text/qtextdocumentfragment.cpp
@@ -699,6 +699,8 @@ QTextHtmlImporter::ProcessNodeResult QTextHtmlImporter::processSpecialNodes()
                 listFmt.setNumberPrefix(currentNode->textListNumberPrefix);
             if (!currentNode->textListNumberSuffix.isNull())
                 listFmt.setNumberSuffix(currentNode->textListNumberSuffix);
+            if (currentNode->listStart != 1)
+                listFmt.setStart(currentNode->listStart);
 
             ++indent;
             if (currentNode->hasCssListIndent)
diff --git a/src/gui/text/qtextengine.cpp b/src/gui/text/qtextengine.cpp
index eded3e3f..0b3e651f 100644
--- a/src/gui/text/qtextengine.cpp
+++ b/src/gui/text/qtextengine.cpp
@@ -1404,6 +1404,7 @@ void QTextEngine::shapeText(int item) const
     bool kerningEnabled;
     bool letterSpacingIsAbsolute;
     bool shapingEnabled = false;
+    QHash<quint32, quint32> features;
     QFixed letterSpacing, wordSpacing;
 #ifndef QT_NO_RAWFONT
     if (useRawFont) {
@@ -1417,6 +1418,7 @@ void QTextEngine::shapeText(int item) const
         wordSpacing = QFixed::fromReal(font.wordSpacing());
         letterSpacing = QFixed::fromReal(font.letterSpacing());
         letterSpacingIsAbsolute = true;
+        features = font.d->features;
     } else
 #endif
     {
@@ -1429,6 +1431,7 @@ void QTextEngine::shapeText(int item) const
         letterSpacingIsAbsolute = font.d->letterSpacingIsAbsolute;
         letterSpacing = font.d->letterSpacing;
         wordSpacing = font.d->wordSpacing;
+        features = font.d->features;
 
         if (letterSpacingIsAbsolute && letterSpacing.value())
             letterSpacing *= font.d->dpi / qt_defaultDpiY();
@@ -1482,7 +1485,14 @@ void QTextEngine::shapeText(int item) const
 
 #if QT_CONFIG(harfbuzz)
     if (Q_LIKELY(shapingEnabled)) {
-        si.num_glyphs = shapeTextWithHarfbuzzNG(si, string, itemLength, fontEngine, itemBoundaries, kerningEnabled, letterSpacing != 0);
+        si.num_glyphs = shapeTextWithHarfbuzzNG(si,
+                                                string,
+                                                itemLength,
+                                                fontEngine,
+                                                itemBoundaries,
+                                                kerningEnabled,
+                                                letterSpacing != 0,
+                                                features);
     } else
 #endif
     {
@@ -1594,7 +1604,8 @@ int QTextEngine::shapeTextWithHarfbuzzNG(const QScriptItem &si,
                                          QFontEngine *fontEngine,
                                          const QList<uint> &itemBoundaries,
                                          bool kerningEnabled,
-                                         bool hasLetterSpacing) const
+                                         bool hasLetterSpacing,
+                                         const QHash<quint32, quint32> &fontFeatures) const
 {
     uint glyphs_shaped = 0;
 
@@ -1648,14 +1659,24 @@ int QTextEngine::shapeTextWithHarfbuzzNG(const QScriptItem &si,
                                          || script == QChar::Script_Khmer || script == QChar::Script_Nko);
 
             bool dontLigate = hasLetterSpacing && !scriptRequiresOpenType;
-            const hb_feature_t features[5] = {
-                { HB_TAG('k','e','r','n'), !!kerningEnabled, HB_FEATURE_GLOBAL_START, HB_FEATURE_GLOBAL_END },
-                { HB_TAG('l','i','g','a'), false, HB_FEATURE_GLOBAL_START, HB_FEATURE_GLOBAL_END },
-                { HB_TAG('c','l','i','g'), false, HB_FEATURE_GLOBAL_START, HB_FEATURE_GLOBAL_END },
-                { HB_TAG('d','l','i','g'), false, HB_FEATURE_GLOBAL_START, HB_FEATURE_GLOBAL_END },
-                { HB_TAG('h','l','i','g'), false, HB_FEATURE_GLOBAL_START, HB_FEATURE_GLOBAL_END }
-            };
-            const int num_features = dontLigate ? 5 : 1;
+
+            QHash<quint32, quint32> features;
+            features.insert(HB_TAG('k','e','r','n'), !!kerningEnabled);
+            if (dontLigate) {
+                features.insert(HB_TAG('l','i','g','a'), false);
+                features.insert(HB_TAG('c','l','i','g'), false);
+                features.insert(HB_TAG('d','l','i','g'), false);
+                features.insert(HB_TAG('h','l','i','g'), false);
+            }
+            features.insert(fontFeatures);
+
+            QVarLengthArray<hb_feature_t, 16> featureArray;
+            for (auto it = features.constBegin(); it != features.constEnd(); ++it) {
+                featureArray.append({ it.key(),
+                                      it.value(),
+                                      HB_FEATURE_GLOBAL_START,
+                                      HB_FEATURE_GLOBAL_END });
+            }
 
             // whitelist cross-platforms shapers only
             static const char *shaper_list[] = {
@@ -1665,7 +1686,11 @@ int QTextEngine::shapeTextWithHarfbuzzNG(const QScriptItem &si,
                 nullptr
             };
 
-            bool shapedOk = hb_shape_full(hb_font, buffer, features, num_features, shaper_list);
+            bool shapedOk = hb_shape_full(hb_font,
+                                          buffer,
+                                          featureArray.constData(),
+                                          features.size(),
+                                          shaper_list);
             if (Q_UNLIKELY(!shapedOk)) {
                 hb_buffer_destroy(buffer);
                 return 0;
diff --git a/src/gui/text/qtextengine_p.h b/src/gui/text/qtextengine_p.h
index 59e332c6..6cacd6b5 100644
--- a/src/gui/text/qtextengine_p.h
+++ b/src/gui/text/qtextengine_p.h
@@ -621,9 +621,14 @@ private:
     void addRequiredBoundaries() const;
     void shapeText(int item) const;
 #if QT_CONFIG(harfbuzz)
-    int shapeTextWithHarfbuzzNG(const QScriptItem &si, const ushort *string, int itemLength,
-                                QFontEngine *fontEngine, const QList<uint> &itemBoundaries,
-                                bool kerningEnabled, bool hasLetterSpacing) const;
+    int shapeTextWithHarfbuzzNG(const QScriptItem &si,
+                                const ushort *string,
+                                int itemLength,
+                                QFontEngine *fontEngine,
+                                const QList<uint> &itemBoundaries,
+                                bool kerningEnabled,
+                                bool hasLetterSpacing,
+                                const QHash<quint32, quint32> &features) const;
 #endif
 
     int endOfLine(int lineNum);
diff --git a/src/gui/text/qtextformat.cpp b/src/gui/text/qtextformat.cpp
index 2be6b3c3..a383a290 100644
--- a/src/gui/text/qtextformat.cpp
+++ b/src/gui/text/qtextformat.cpp
@@ -684,6 +684,8 @@ Q_GUI_EXPORT QDataStream &operator>>(QDataStream &stream, QTextTableCellFormat &
                             numeric lists.
     \value ListNumberSuffix Defines the text which is appended to item numbers in
                             numeric lists.
+    \value [since 6.6] ListStart
+                            Defines the first value of a list.
 
     Table and frame properties
 
@@ -2610,7 +2612,8 @@ QList<QTextOption::Tab> QTextBlockFormat::tabPositions() const
     The style used to decorate each item is set with setStyle() and can be read
     with the style() function. The style controls the type of bullet points and
     numbering scheme used for items in the list. Note that lists that use the
-    decimal numbering scheme begin counting at 1 rather than 0.
+    decimal numbering scheme begin counting at 1 rather than 0, unless it has
+    been overridden via setStart().
 
     Style properties can be set to further configure the appearance of list
     items; for example, the ListNumberPrefix and ListNumberSuffix properties
@@ -2647,6 +2650,7 @@ QTextListFormat::QTextListFormat()
     : QTextFormat(ListFormat)
 {
     setIndent(1);
+    setStart(1);
 }
 
 /*!
@@ -2750,6 +2754,32 @@ QTextListFormat::QTextListFormat(const QTextFormat &fmt)
     \sa setNumberSuffix()
 */
 
+/*!
+    \fn void QTextListFormat::setStart(int start)
+    \since 6.6
+
+    Sets the list format's \a start index.
+
+    This allows you to start a list with an index other than 1. This can be
+    used with all sorted list types: for example if the style() is
+    QTextListFormat::ListLowerAlpha and start() is \c 4, the first list item
+    begins with "d". It does not have any effect on unsorted list types.
+
+    The default start is \c 1.
+
+    \sa start()
+*/
+
+/*!
+    \fn int QTextListFormat::start() const
+    \since 6.6
+
+    Returns the number to be shown by the first list item, if the style() is
+    QTextListFormat::ListDecimal, or to offset other sorted list types.
+
+    \sa setStart()
+*/
+
 /*!
     \class QTextFrameFormat
     \reentrant
diff --git a/src/gui/text/qtextformat.h b/src/gui/text/qtextformat.h
index 02c66279..c009d328 100644
--- a/src/gui/text/qtextformat.h
+++ b/src/gui/text/qtextformat.h
@@ -188,6 +188,7 @@ public:
         ListIndent = 0x3001,
         ListNumberPrefix = 0x3002,
         ListNumberSuffix = 0x3003,
+        ListStart = 0x3004,
 
         // table and frame properties
         FrameBorder = 0x4000,
@@ -753,6 +754,9 @@ public:
     inline QString numberSuffix() const
     { return stringProperty(ListNumberSuffix); }
 
+    inline void setStart(int indent);
+    inline int start() const { return intProperty(ListStart); }
+
 protected:
     explicit QTextListFormat(const QTextFormat &fmt);
     friend class QTextFormat;
@@ -772,6 +776,11 @@ inline void QTextListFormat::setNumberPrefix(const QString &np)
 inline void QTextListFormat::setNumberSuffix(const QString &ns)
 { setProperty(ListNumberSuffix, ns); }
 
+inline void QTextListFormat::setStart(int astart)
+{
+    setProperty(ListStart, astart);
+}
+
 class Q_GUI_EXPORT QTextImageFormat : public QTextCharFormat
 {
 public:
diff --git a/src/gui/text/qtexthtmlparser.cpp b/src/gui/text/qtexthtmlparser.cpp
index 55c64bb2..16e2d7bd 100644
--- a/src/gui/text/qtexthtmlparser.cpp
+++ b/src/gui/text/qtexthtmlparser.cpp
@@ -1634,6 +1634,8 @@ void QTextHtmlParser::applyAttributes(const QStringList &attributes)
                         else if (value == "none"_L1)
                             node->listStyle = QTextListFormat::ListStyleUndefined;
                     }
+                } else if (key == "start"_L1) {
+                    setIntAttribute(&node->listStart, value);
                 }
                 break;
             case Html_li:
diff --git a/src/gui/text/qtexthtmlparser_p.h b/src/gui/text/qtexthtmlparser_p.h
index 0085c01e..ecbc2381 100644
--- a/src/gui/text/qtexthtmlparser_p.h
+++ b/src/gui/text/qtexthtmlparser_p.h
@@ -150,6 +150,7 @@ struct QTextHtmlParserNode {
     uint displayMode : 3; // QTextHtmlElement::DisplayMode
     uint hasHref : 1;
     QTextListFormat::Style listStyle;
+    int listStart = 1;
     QString textListNumberPrefix;
     QString textListNumberSuffix;
     QString imageName;
diff --git a/src/gui/text/qtextimagehandler.cpp b/src/gui/text/qtextimagehandler.cpp
index 3ce3a4bd..70e89614 100644
--- a/src/gui/text/qtextimagehandler.cpp
+++ b/src/gui/text/qtextimagehandler.cpp
@@ -41,132 +41,68 @@ static inline QUrl fromLocalfileOrResources(QString path)
     return QUrl(path);
 }
 
-static QPixmap getPixmap(QTextDocument *doc, const QTextImageFormat &format, const qreal devicePixelRatio = 1.0)
+template<typename T>
+static T getAs(QTextDocument *doc, const QTextImageFormat &format, const qreal devicePixelRatio = 1.0)
 {
     qreal sourcePixelRatio = 1.0;
     const QString name = findAtNxFileOrResource(format.name(), devicePixelRatio, &sourcePixelRatio);
     const QUrl url = fromLocalfileOrResources(name);
 
-    QPixmap pm;
     const QVariant data = doc->resource(QTextDocument::ImageResource, url);
-    if (data.userType() == QMetaType::QPixmap || data.userType() == QMetaType::QImage) {
-        pm = qvariant_cast<QPixmap>(data);
-    } else if (data.userType() == QMetaType::QByteArray) {
-        pm.loadFromData(data.toByteArray());
-    }
+    T result;
+    if (data.userType() == QMetaType::QPixmap || data.userType() == QMetaType::QImage)
+        result = data.value<T>();
+    else if (data.metaType() == QMetaType::fromType<QByteArray>())
+        result.loadFromData(data.toByteArray());
 
-    if (pm.isNull()) {
-        QImage img;
-        if (name.isEmpty() || !img.load(name))
-            return QPixmap(":/qt-project.org/styles/commonstyle/images/file-16.png"_L1);
-
-        pm = QPixmap::fromImage(img);
-        doc->addResource(QTextDocument::ImageResource, url, pm);
-    }
-
-    if (name.contains("@2x"_L1))
-        pm.setDevicePixelRatio(sourcePixelRatio);
-
-    return pm;
-}
-
-static QSize getPixmapSize(QTextDocument *doc, const QTextImageFormat &format)
-{
-    QPixmap pm;
-
-    const bool hasWidth = format.hasProperty(QTextFormat::ImageWidth);
-    const int width = qRound(format.width());
-    const bool hasHeight = format.hasProperty(QTextFormat::ImageHeight);
-    const int height = qRound(format.height());
-
-    QSize size(width, height);
-    if (!hasWidth || !hasHeight) {
-        pm = getPixmap(doc, format);
-        const QSizeF pmSize = pm.deviceIndependentSize();
-
-        if (!hasWidth) {
-            if (!hasHeight)
-                size.setWidth(pmSize.width());
-            else
-                size.setWidth(qRound(height * (pmSize.width() / (qreal) pmSize.height())));
-        }
-        if (!hasHeight) {
-            if (!hasWidth)
-                size.setHeight(pmSize.height());
-            else
-                size.setHeight(qRound(width * (pmSize.height() / (qreal) pmSize.width())));
-        }
-    }
-
-    qreal scale = 1.0;
-    QPaintDevice *pdev = doc->documentLayout()->paintDevice();
-    if (pdev) {
-        if (pm.isNull())
-            pm = getPixmap(doc, format);
-        if (!pm.isNull())
-            scale = qreal(pdev->logicalDpiY()) / qreal(qt_defaultDpi());
-    }
-    size *= scale;
-
-    return size;
-}
-
-static QImage getImage(QTextDocument *doc, const QTextImageFormat &format, const qreal devicePixelRatio = 1.0)
-{
-    qreal sourcePixelRatio = 1.0;
-    const QString name = findAtNxFileOrResource(format.name(), devicePixelRatio, &sourcePixelRatio);
-    const QUrl url = fromLocalfileOrResources(name);
-
-    QImage image;
-    const QVariant data = doc->resource(QTextDocument::ImageResource, url);
-    if (data.userType() == QMetaType::QImage) {
-        image = qvariant_cast<QImage>(data);
-    } else if (data.userType() == QMetaType::QByteArray) {
-        image.loadFromData(data.toByteArray());
-    }
-
-    if (image.isNull()) {
-        if (name.isEmpty() || !image.load(name))
-            return QImage(":/qt-project.org/styles/commonstyle/images/file-16.png"_L1);
-
-        doc->addResource(QTextDocument::ImageResource, url, image);
+    if (result.isNull()) {
+        if (name.isEmpty() || !result.load(name))
+            return T(":/qt-project.org/styles/commonstyle/images/file-16.png"_L1);
+        doc->addResource(QTextDocument::ImageResource, url, result);
     }
 
     if (sourcePixelRatio != 1.0)
-        image.setDevicePixelRatio(sourcePixelRatio);
-
-    return image;
+        result.setDevicePixelRatio(sourcePixelRatio);
+    return result;
 }
 
-static QSize getImageSize(QTextDocument *doc, const QTextImageFormat &format)
+template<typename T>
+static QSize getSize(QTextDocument *doc, const QTextImageFormat &format)
 {
-    QImage image;
-
     const bool hasWidth = format.hasProperty(QTextFormat::ImageWidth);
     const int width = qRound(format.width());
     const bool hasHeight = format.hasProperty(QTextFormat::ImageHeight);
     const int height = qRound(format.height());
 
+    T source;
     QSize size(width, height);
     if (!hasWidth || !hasHeight) {
-        image = getImage(doc, format);
-        QSizeF imageSize = image.deviceIndependentSize();
-        if (!hasWidth)
-            size.setWidth(imageSize.width());
-        if (!hasHeight)
-            size.setHeight(imageSize.height());
+        source = getAs<T>(doc, format);
+        const QSizeF sourceSize = source.deviceIndependentSize();
+
+        if (!hasWidth) {
+            if (!hasHeight)
+                size.setWidth(sourceSize.width());
+            else
+                size.setWidth(qRound(height * (sourceSize.width() / qreal(sourceSize.height()))));
+        }
+        if (!hasHeight) {
+            if (!hasWidth)
+                size.setHeight(sourceSize.height());
+            else
+                size.setHeight(qRound(width * (sourceSize.height() / qreal(sourceSize.width()))));
+        }
     }
 
     qreal scale = 1.0;
     QPaintDevice *pdev = doc->documentLayout()->paintDevice();
     if (pdev) {
-        if (image.isNull())
-            image = getImage(doc, format);
-        if (!image.isNull())
+        if (source.isNull())
+            source = getAs<T>(doc, format);
+        if (!source.isNull())
             scale = qreal(pdev->logicalDpiY()) / qreal(qt_defaultDpi());
     }
     size *= scale;
-
     return size;
 }
 
@@ -181,15 +117,15 @@ QSizeF QTextImageHandler::intrinsicSize(QTextDocument *doc, int posInDocument, c
     const QTextImageFormat imageFormat = format.toImageFormat();
 
     if (QCoreApplication::instance()->thread() != QThread::currentThread())
-        return getImageSize(doc, imageFormat);
-    return getPixmapSize(doc, imageFormat);
+        return getSize<QImage>(doc, imageFormat);
+    return getSize<QPixmap>(doc, imageFormat);
 }
 
 QImage QTextImageHandler::image(QTextDocument *doc, const QTextImageFormat &imageFormat)
 {
     Q_ASSERT(doc != nullptr);
 
-    return getImage(doc, imageFormat);
+    return getAs<QImage>(doc, imageFormat);
 }
 
 void QTextImageHandler::drawObject(QPainter *p, const QRectF &rect, QTextDocument *doc, int posInDocument, const QTextFormat &format)
@@ -198,10 +134,10 @@ void QTextImageHandler::drawObject(QPainter *p, const QRectF &rect, QTextDocumen
         const QTextImageFormat imageFormat = format.toImageFormat();
 
     if (QCoreApplication::instance()->thread() != QThread::currentThread()) {
-        const QImage image = getImage(doc, imageFormat, p->device()->devicePixelRatio());
+        const QImage image = getAs<QImage>(doc, imageFormat, p->device()->devicePixelRatio());
         p->drawImage(rect, image, image.rect());
     } else {
-        const QPixmap pixmap = getPixmap(doc, imageFormat, p->device()->devicePixelRatio());
+        const QPixmap pixmap = getAs<QPixmap>(doc, imageFormat, p->device()->devicePixelRatio());
         p->drawPixmap(rect, pixmap, pixmap.rect());
     }
 }
diff --git a/src/gui/text/qtextlist.cpp b/src/gui/text/qtextlist.cpp
index 8b4b308d..90a6cf88 100644
--- a/src/gui/text/qtextlist.cpp
+++ b/src/gui/text/qtextlist.cpp
@@ -147,6 +147,9 @@ QString QTextList::itemText(const QTextBlock &blockIt) const
     QString numberPrefix;
     QString numberSuffix = u"."_s;
 
+    // the number of the item might be offset by start, which defaults to 1
+    const int itemNumber = item + format().start() - 1;
+
     if (format().hasProperty(QTextFormat::ListNumberPrefix))
         numberPrefix = format().numberPrefix();
     if (format().hasProperty(QTextFormat::ListNumberSuffix))
@@ -154,15 +157,21 @@ QString QTextList::itemText(const QTextBlock &blockIt) const
 
     switch (style) {
         case QTextListFormat::ListDecimal:
-            result = QString::number(item);
+            result = QString::number(itemNumber);
             break;
             // from the old richtext
         case QTextListFormat::ListLowerAlpha:
         case QTextListFormat::ListUpperAlpha:
             {
+                // match the html default behavior of falling back to decimal numbers
+                if (itemNumber < 1) {
+                    result = QString::number(itemNumber);
+                    break;
+                }
+
                 const char baseChar = style == QTextListFormat::ListUpperAlpha ? 'A' : 'a';
 
-                int c = item;
+                int c = itemNumber;
                 while (c > 0) {
                     c--;
                     result.prepend(QChar::fromUcs2(baseChar + (c % 26)));
@@ -173,7 +182,10 @@ QString QTextList::itemText(const QTextBlock &blockIt) const
         case QTextListFormat::ListLowerRoman:
         case QTextListFormat::ListUpperRoman:
             {
-                if (item < 5000) {
+                // match the html default behavior of falling back to decimal numbers
+                if (itemNumber < 1) {
+                    result = QString::number(itemNumber);
+                } else if (itemNumber < 5000) {
                     QByteArray romanNumeral;
 
                     // works for up to 4999 items
@@ -186,7 +198,7 @@ QString QTextList::itemText(const QTextBlock &blockIt) const
                         romanSymbols = QByteArray::fromRawData(romanSymbolsUpper, sizeof(romanSymbolsUpper));
 
                     int c[] = { 1, 4, 5, 9, 10, 40, 50, 90, 100, 400, 500, 900, 1000 };
-                    int n = item;
+                    int n = itemNumber;
                     for (int i = 12; i >= 0; n %= c[i], i--) {
                         int q = n / c[i];
                         if (q > 0) {
@@ -212,8 +224,7 @@ QString QTextList::itemText(const QTextBlock &blockIt) const
                         }
                     }
                     result = QString::fromLatin1(romanNumeral);
-                }
-                else {
+                } else {
                     result = u"?"_s;
                 }
 
diff --git a/src/gui/text/qtextmarkdownimporter.cpp b/src/gui/text/qtextmarkdownimporter.cpp
index 24dbd941..b43e1583 100644
--- a/src/gui/text/qtextmarkdownimporter.cpp
+++ b/src/gui/text/qtextmarkdownimporter.cpp
@@ -229,7 +229,8 @@ int QTextMarkdownImporter::cbEnterBlock(int blockType, void *det)
         m_listFormat.setIndent(m_listStack.size() + 1);
         m_listFormat.setNumberSuffix(QChar::fromLatin1(detail->mark_delimiter));
         m_listFormat.setStyle(QTextListFormat::ListDecimal);
-        qCDebug(lcMD, "OL xx%d level %d", detail->mark_delimiter, int(m_listStack.size()) + 1);
+        m_listFormat.setStart(detail->start);
+        qCDebug(lcMD, "OL xx%d level %d start %d", detail->mark_delimiter, int(m_listStack.size()) + 1, detail->start);
     } break;
     case MD_BLOCK_TD: {
         MD_BLOCK_TD_DETAIL *detail = static_cast<MD_BLOCK_TD_DETAIL *>(det);
diff --git a/src/gui/text/qtextmarkdownwriter.cpp b/src/gui/text/qtextmarkdownwriter.cpp
index f535ff8a..5fb67ccc 100644
--- a/src/gui/text/qtextmarkdownwriter.cpp
+++ b/src/gui/text/qtextmarkdownwriter.cpp
@@ -344,7 +344,9 @@ int QTextMarkdownWriter::writeBlock(const QTextBlock &block, bool wrap, bool ign
     if (block.textList()) { // it's a list-item
         auto fmt = block.textList()->format();
         const int listLevel = fmt.indent();
-        const int number = block.textList()->itemNumber(block) + 1;
+        // Negative numbers don't start a list in Markdown, so ignore them.
+        const int start = fmt.start() >= 0 ? fmt.start() : 1;
+        const int number = block.textList()->itemNumber(block) + start;
         QByteArray bullet = " ";
         bool numeric = false;
         switch (fmt.style()) {
diff --git a/src/gui/text/qtextobject.cpp b/src/gui/text/qtextobject.cpp
index 8d3195dc..f9452f43 100644
--- a/src/gui/text/qtextobject.cpp
+++ b/src/gui/text/qtextobject.cpp
@@ -174,7 +174,7 @@ void QTextBlockGroupPrivate::markBlocksDirty()
 /*!
     \fn QTextBlockGroup::QTextBlockGroup(QTextDocument *document)
 
-    Creates a new new block group for the given \a document.
+    Creates a new block group for the given \a document.
 
     \warning This function should only be called from
     QTextDocument::createObject().
diff --git a/src/gui/text/qtextodfwriter.cpp b/src/gui/text/qtextodfwriter.cpp
index 54685903..b50771c1 100644
--- a/src/gui/text/qtextodfwriter.cpp
+++ b/src/gui/text/qtextodfwriter.cpp
@@ -18,9 +18,10 @@
 #include "qtexttable.h"
 #include "qtextcursor.h"
 #include "qtextimagehandler_p.h"
-#include "qzipwriter_p.h"
 
 #include <QDebug>
+#include <QtCore/private/qzipwriter_p.h>
+
 
 QT_BEGIN_NAMESPACE
 
diff --git a/src/gui/text/windows/qwindowsfontdatabase.cpp b/src/gui/text/windows/qwindowsfontdatabase.cpp
index 2de53be6..3f27466d 100644
--- a/src/gui/text/windows/qwindowsfontdatabase.cpp
+++ b/src/gui/text/windows/qwindowsfontdatabase.cpp
@@ -868,36 +868,70 @@ QT_WARNING_POP
     return fontEngine;
 }
 
-static QList<quint32> getTrueTypeFontOffsets(const uchar *fontData)
+static QList<quint32> getTrueTypeFontOffsets(const uchar *fontData, const uchar *fileEndSentinel)
 {
     QList<quint32> offsets;
-    const quint32 headerTag = *reinterpret_cast<const quint32 *>(fontData);
+    if (fileEndSentinel - fontData < 12) {
+        qCWarning(lcQpaFonts) << "Corrupted font data detected";
+        return offsets;
+    }
+
+    const quint32 headerTag = qFromUnaligned<quint32>(fontData);
     if (headerTag != MAKE_TAG('t', 't', 'c', 'f')) {
         if (headerTag != MAKE_TAG(0, 1, 0, 0)
             && headerTag != MAKE_TAG('O', 'T', 'T', 'O')
             && headerTag != MAKE_TAG('t', 'r', 'u', 'e')
-            && headerTag != MAKE_TAG('t', 'y', 'p', '1'))
+            && headerTag != MAKE_TAG('t', 'y', 'p', '1')) {
             return offsets;
+        }
         offsets << 0;
         return offsets;
     }
+
+    const quint32 maximumNumFonts = 0xffff;
     const quint32 numFonts = qFromBigEndian<quint32>(fontData + 8);
-    for (uint i = 0; i < numFonts; ++i) {
-        offsets << qFromBigEndian<quint32>(fontData + 12 + i * 4);
+    if (numFonts > maximumNumFonts) {
+        qCWarning(lcQpaFonts) << "Font collection of" << numFonts << "fonts is too large. Aborting.";
+        return offsets;
     }
+
+    if (quintptr(fileEndSentinel - fontData) > 12 + (numFonts - 1) * 4) {
+        for (quint32 i = 0; i < numFonts; ++i)
+            offsets << qFromBigEndian<quint32>(fontData + 12 + i * 4);
+    } else {
+        qCWarning(lcQpaFonts) << "Corrupted font data detected";
+    }
+
     return offsets;
 }
 
-static void getFontTable(const uchar *fileBegin, const uchar *data, quint32 tag, const uchar **table, quint32 *length)
+static void getFontTable(const uchar *fileBegin, const uchar *fileEndSentinel, const uchar *data, quint32 tag, const uchar **table, quint32 *length)
 {
-    const quint16 numTables = qFromBigEndian<quint16>(data + 4);
-    for (uint i = 0; i < numTables; ++i) {
-        const quint32 offset = 12 + 16 * i;
-        if (*reinterpret_cast<const quint32 *>(data + offset) == tag) {
-            *table = fileBegin + qFromBigEndian<quint32>(data + offset + 8);
-            *length = qFromBigEndian<quint32>(data + offset + 12);
-            return;
+    if (fileEndSentinel - data >= 6) {
+        const quint16 numTables = qFromBigEndian<quint16>(data + 4);
+        if (fileEndSentinel - data >= 28 + 16 * (numTables - 1)) {
+            for (quint32 i = 0; i < numTables; ++i) {
+                const quint32 offset = 12 + 16 * i;
+                if (qFromUnaligned<quint32>(data + offset) == tag) {
+                    const quint32 tableOffset = qFromBigEndian<quint32>(data + offset + 8);
+                    if (quintptr(fileEndSentinel - fileBegin) <= tableOffset) {
+                        qCWarning(lcQpaFonts) << "Corrupted font data detected";
+                        break;
+                    }
+                    *table = fileBegin + tableOffset;
+                    *length = qFromBigEndian<quint32>(data + offset + 12);
+                    if (quintptr(fileEndSentinel - *table) < *length) {
+                        qCWarning(lcQpaFonts) << "Corrupted font data detected";
+                        break;
+                    }
+                    return;
+                }
+            }
+        } else {
+            qCWarning(lcQpaFonts) << "Corrupted font data detected";
         }
+    } else {
+        qCWarning(lcQpaFonts) << "Corrupted font data detected";
     }
     *table = 0;
     *length = 0;
@@ -910,8 +944,9 @@ static void getFamiliesAndSignatures(const QByteArray &fontData,
                                      QList<QFontValues> *values)
 {
     const uchar *data = reinterpret_cast<const uchar *>(fontData.constData());
+    const uchar *dataEndSentinel = data + fontData.size();
 
-    QList<quint32> offsets = getTrueTypeFontOffsets(data);
+    QList<quint32> offsets = getTrueTypeFontOffsets(data, dataEndSentinel);
     if (offsets.isEmpty())
         return;
 
@@ -919,7 +954,7 @@ static void getFamiliesAndSignatures(const QByteArray &fontData,
         const uchar *font = data + offsets.at(i);
         const uchar *table;
         quint32 length;
-        getFontTable(data, font, MAKE_TAG('n', 'a', 'm', 'e'), &table, &length);
+        getFontTable(data, dataEndSentinel, font, MAKE_TAG('n', 'a', 'm', 'e'), &table, &length);
         if (!table)
             continue;
         QFontNames names = qt_getCanonicalFontNames(table, length);
@@ -929,7 +964,7 @@ static void getFamiliesAndSignatures(const QByteArray &fontData,
         families->append(std::move(names));
 
         if (values || signatures)
-            getFontTable(data, font, MAKE_TAG('O', 'S', '/', '2'), &table, &length);
+            getFontTable(data, dataEndSentinel, font, MAKE_TAG('O', 'S', '/', '2'), &table, &length);
 
         if (values) {
             QFontValues fontValues;
diff --git a/src/gui/text/windows/qwindowsfontenginedirectwrite.cpp b/src/gui/text/windows/qwindowsfontenginedirectwrite.cpp
index 14dd064c..24417ac7 100644
--- a/src/gui/text/windows/qwindowsfontenginedirectwrite.cpp
+++ b/src/gui/text/windows/qwindowsfontenginedirectwrite.cpp
@@ -586,7 +586,9 @@ glyph_metrics_t QWindowsFontEngineDirectWrite::boundingBox(const QGlyphLayout &g
     for (int i = 0; i < glyphs.numGlyphs; ++i)
         w += glyphs.effectiveAdvance(i);
 
-    return glyph_metrics_t(0, -ascent(), w - lastRightBearing(glyphs), ascent() + descent(), w, 0);
+    const QFixed leftBearing = firstLeftBearing(glyphs);
+    return glyph_metrics_t(leftBearing, -ascent(), w - leftBearing - lastRightBearing(glyphs),
+            ascent() + descent(), w, 0);
 }
 
 glyph_metrics_t QWindowsFontEngineDirectWrite::boundingBox(glyph_t g)
diff --git a/src/gui/util/qdesktopservices.cpp b/src/gui/util/qdesktopservices.cpp
index ae452885..4a12f6db 100644
--- a/src/gui/util/qdesktopservices.cpp
+++ b/src/gui/util/qdesktopservices.cpp
@@ -162,6 +162,13 @@ void QOpenUrlHandlerRegistry::handlerDestroyed(QObject *handler)
 
     \snippet code/src_gui_util_qdesktopservices.cpp 3
 
+    \note For Android Nougat (SDK 24) and above, URLs with a \c file scheme
+    are opened using \l {Android: FileProvider}{FileProvider} which tries to obtain
+    a shareable \c content scheme URI first. For that reason, Qt for Android defines
+    a file provider with the authority \c ${applicationId}.qtprovider, with \c applicationId
+    being the app's package name to avoid name conflicts. For more information, also see
+    \l {Android: Setting up file sharing}{Setting up file sharing}.
+
     \sa setUrlHandler()
 */
 bool QDesktopServices::openUrl(const QUrl &url)
diff --git a/src/gui/util/qgridlayoutengine.cpp b/src/gui/util/qgridlayoutengine.cpp
index 1cc42d32..9d64c87b 100644
--- a/src/gui/util/qgridlayoutengine.cpp
+++ b/src/gui/util/qgridlayoutengine.cpp
@@ -758,6 +758,8 @@ QGridLayoutEngine::QGridLayoutEngine(Qt::Alignment defaultAlignment, bool snapTo
     m_visualDirection = Qt::LeftToRight;
     m_defaultAlignment = defaultAlignment;
     m_snapToPixelGrid = snapToPixelGrid;
+    m_uniformCellWidths = false;
+    m_uniformCellHeights = false;
     invalidate();
 }
 
@@ -875,6 +877,34 @@ qreal QGridLayoutEngine::rowSizeHint(Qt::SizeHint which, int row, Qt::Orientatio
     return q_infos[orientation].boxes.value(row).q_sizes(which);
 }
 
+bool QGridLayoutEngine::uniformCellWidths() const
+{
+    return m_uniformCellWidths;
+}
+
+void QGridLayoutEngine::setUniformCellWidths(bool uniformCellWidths)
+{
+    if (m_uniformCellWidths == uniformCellWidths)
+        return;
+
+    m_uniformCellWidths = uniformCellWidths;
+    invalidate();
+}
+
+bool QGridLayoutEngine::uniformCellHeights() const
+{
+    return m_uniformCellHeights;
+}
+
+void QGridLayoutEngine::setUniformCellHeights(bool uniformCellHeights)
+{
+    if (m_uniformCellHeights == uniformCellHeights)
+        return;
+
+    m_uniformCellHeights = uniformCellHeights;
+    invalidate();
+}
+
 void QGridLayoutEngine::setRowAlignment(int row, Qt::Alignment alignment,
                                         Qt::Orientation orientation)
 {
@@ -1499,6 +1529,27 @@ void QGridLayoutEngine::fillRowData(QGridLayoutRowData *rowData,
             rowSpacing = qMax(windowMargin, rowSpacing);
         }
     }
+
+    if (rowData->boxes.size() > 1 &&
+        ((orientation == Qt::Horizontal && m_uniformCellWidths) ||
+        (orientation == Qt::Vertical && m_uniformCellHeights))) {
+        qreal averagePreferredSize = 0.;
+        qreal minimumMaximumSize = std::numeric_limits<qreal>::max();
+        qreal maximumMinimumSize = 0.;
+        for (const auto &box : rowData->boxes) {
+            averagePreferredSize += box.q_preferredSize;
+            minimumMaximumSize = qMin(minimumMaximumSize, box.q_maximumSize);
+            maximumMinimumSize = qMax(maximumMinimumSize, box.q_minimumSize);
+        }
+        averagePreferredSize /= rowData->boxes.size();
+        minimumMaximumSize = qMax(minimumMaximumSize, maximumMinimumSize);
+        averagePreferredSize = qBound(maximumMinimumSize, averagePreferredSize, minimumMaximumSize);
+        for (auto &box : rowData->boxes) {
+            box.q_preferredSize = averagePreferredSize;
+            box.q_minimumSize = maximumMinimumSize;
+            box.q_maximumSize = minimumMaximumSize;
+        }
+    }
 }
 
 void QGridLayoutEngine::ensureEffectiveFirstAndLastRows() const
diff --git a/src/gui/util/qgridlayoutengine_p.h b/src/gui/util/qgridlayoutengine_p.h
index 8344d488..e21d89dd 100644
--- a/src/gui/util/qgridlayoutengine_p.h
+++ b/src/gui/util/qgridlayoutengine_p.h
@@ -334,6 +334,12 @@ public:
     qreal rowSizeHint(Qt::SizeHint which, int row,
                       Qt::Orientation orientation = Qt::Vertical) const;
 
+    bool uniformCellWidths() const;
+    void setUniformCellWidths(bool uniformCellWidths);
+
+    bool uniformCellHeights() const;
+    void setUniformCellHeights(bool uniformCellHeights);
+
     void setRowAlignment(int row, Qt::Alignment alignment, Qt::Orientation orientation);
     Qt::Alignment rowAlignment(int row, Qt::Orientation orientation) const;
 
@@ -415,6 +421,8 @@ private:
     // Configuration
     Qt::Alignment m_defaultAlignment;
     unsigned m_snapToPixelGrid : 1;
+    unsigned m_uniformCellWidths : 1;
+    unsigned m_uniformCellHeights : 1;
 
     // Lazily computed from the above user input
     mutable QHVContainer<int> q_cachedEffectiveFirstRows;
diff --git a/src/gui/vulkan/qplatformvulkaninstance.cpp b/src/gui/vulkan/qplatformvulkaninstance.cpp
index 2955f2f3..2685a5c6 100644
--- a/src/gui/vulkan/qplatformvulkaninstance.cpp
+++ b/src/gui/vulkan/qplatformvulkaninstance.cpp
@@ -64,4 +64,15 @@ void QPlatformVulkanInstance::setDebugUtilsFilters(const QList<QVulkanInstance::
     Q_UNUSED(filters);
 }
 
+void QPlatformVulkanInstance::beginFrame(QWindow *window)
+{
+    Q_UNUSED(window);
+}
+
+void QPlatformVulkanInstance::endFrame(QWindow *window)
+{
+    Q_UNUSED(window);
+}
+
+
 QT_END_NAMESPACE
diff --git a/src/gui/vulkan/qplatformvulkaninstance.h b/src/gui/vulkan/qplatformvulkaninstance.h
index 40ba6025..d34cb77d 100644
--- a/src/gui/vulkan/qplatformvulkaninstance.h
+++ b/src/gui/vulkan/qplatformvulkaninstance.h
@@ -46,6 +46,8 @@ public:
     virtual void presentQueued(QWindow *window);
     virtual void setDebugFilters(const QList<QVulkanInstance::DebugFilter> &filters);
     virtual void setDebugUtilsFilters(const QList<QVulkanInstance::DebugUtilsFilter> &filters);
+    virtual void beginFrame(QWindow *window);
+    virtual void endFrame(QWindow *window);
 
 private:
     QScopedPointer<QPlatformVulkanInstancePrivate> d_ptr;
diff --git a/src/gui/vulkan/qvulkandefaultinstance.cpp b/src/gui/vulkan/qvulkandefaultinstance.cpp
index f2de61a9..b4f343cf 100644
--- a/src/gui/vulkan/qvulkandefaultinstance.cpp
+++ b/src/gui/vulkan/qvulkandefaultinstance.cpp
@@ -2,7 +2,7 @@
 // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
 
 #include "qvulkandefaultinstance_p.h"
-#include <private/qrhivulkan_p.h>
+#include <rhi/qrhi.h>
 #include <QLoggingCategory>
 
 QT_BEGIN_NAMESPACE
diff --git a/src/gui/vulkan/qvulkaninstance.cpp b/src/gui/vulkan/qvulkaninstance.cpp
index 4915fa08..6d3020d6 100644
--- a/src/gui/vulkan/qvulkaninstance.cpp
+++ b/src/gui/vulkan/qvulkaninstance.cpp
@@ -12,6 +12,7 @@ QT_BEGIN_NAMESPACE
 /*!
     \class QVulkanInstance
     \since 5.10
+    \ingroup painting-3D
     \inmodule QtGui
 
     \brief The QVulkanInstance class represents a native Vulkan instance, enabling
diff --git a/src/network/CMakeLists.txt b/src/network/CMakeLists.txt
index 3283260c..64c9bf59 100644
--- a/src/network/CMakeLists.txt
+++ b/src/network/CMakeLists.txt
@@ -174,15 +174,6 @@ qt_internal_extend_target(Network CONDITION UNIX
         kernel/qhostinfo_unix.cpp
         socket/qnativesocketengine_unix.cpp
         socket/qnet_unix_p.h
-    NO_UNITY_BUILD_SOURCES
-        kernel/qhostinfo_unix.cpp # Temporary exclusion until, this,
-                                  # https://codereview.qt-project.org/c/qt/qtbase/+/463670
-                                  # is merged.
-)
-
-qt_internal_extend_target(Network CONDITION QT_FEATURE_dlopen AND UNIX
-    LIBRARIES
-        ${CMAKE_DL_LIBS}
 )
 
 qt_internal_extend_target(Network CONDITION QT_FEATURE_linux_netlink AND UNIX
@@ -195,11 +186,6 @@ qt_internal_extend_target(Network CONDITION UNIX AND NOT QT_FEATURE_linux_netlin
         kernel/qnetworkinterface_unix.cpp
 )
 
-qt_internal_extend_target(Network CONDITION ANDROID AND QT_FEATURE_dnslookup
-    SOURCES
-        kernel/qdnslookup_android.cpp
-)
-
 qt_internal_extend_target(Network CONDITION WIN32
     SOURCES
         kernel/qhostinfo_win.cpp
@@ -216,15 +202,32 @@ qt_internal_extend_target(Network CONDITION WIN32
         NOMINMAX
 )
 
+qt_internal_extend_target(Network CONDITION APPLE AND NOT UIKIT
+    LIBRARIES
+        ${FWCoreServices}
+        ${FWSystemConfiguration}
+)
+
+qt_internal_extend_target(Network CONDITION APPLE
+    LIBRARIES
+        ${FWCFNetwork}
+)
+
+qt_internal_extend_target(Network CONDITION QT_FEATURE_dnslookup AND QT_FEATURE_libresolv
+    SOURCES
+        kernel/qdnslookup_unix.cpp
+    LIBRARIES
+        WrapResolv::WrapResolv
+)
+
 qt_internal_extend_target(Network CONDITION QT_FEATURE_dnslookup AND WIN32
     SOURCES
         kernel/qdnslookup_win.cpp
 )
 
-qt_internal_extend_target(Network CONDITION APPLE AND NOT UIKIT
-    LIBRARIES
-        ${FWCoreServices}
-        ${FWSystemConfiguration}
+qt_internal_extend_target(Network CONDITION QT_FEATURE_dnslookup AND NOT QT_FEATURE_libresolv AND NOT WIN32
+    SOURCES
+        kernel/qdnslookup_dummy.cpp
 )
 
 qt_internal_extend_target(Network CONDITION IOS OR MACOS
@@ -254,9 +257,9 @@ qt_internal_extend_target(Network CONDITION UIKIT
         kernel/qnetworkinterface_uikit_p.h
 )
 
-qt_internal_extend_target(Network CONDITION MACOS
+qt_internal_extend_target(Network CONDITION APPLE
     SOURCES
-        kernel/qnetworkproxy_mac.cpp
+        kernel/qnetworkproxy_darwin.cpp
 )
 
 qt_internal_extend_target(Network CONDITION QT_FEATURE_libproxy AND UNIX AND NOT MACOS
@@ -272,7 +275,7 @@ qt_internal_extend_target(Network CONDITION ANDROID
         kernel/qnetworkproxy_android.cpp
 )
 
-qt_internal_extend_target(Network CONDITION UNIX AND NOT ANDROID AND NOT MACOS AND NOT QT_FEATURE_libproxy AND (UNIX OR WINRT)
+qt_internal_extend_target(Network CONDITION UNIX AND NOT ANDROID AND NOT APPLE AND NOT QT_FEATURE_libproxy AND (UNIX OR WINRT)
     SOURCES
         kernel/qnetworkproxy_generic.cpp
 )
@@ -325,6 +328,11 @@ qt_internal_extend_target(Network CONDITION QT_FEATURE_localserver AND WIN32
         socket/qlocalsocket_win.cpp
 )
 
+qt_internal_extend_target(Network CONDITION QT_FEATURE_openssl_linked AND QT_FEATURE_opensslv30
+    LIBRARIES
+        WrapOpenSSL::WrapOpenSSL
+)
+
 qt_internal_extend_target(Network CONDITION QT_FEATURE_system_proxies
     DEFINES
         QT_USE_SYSTEM_PROXIES
@@ -354,17 +362,15 @@ qt_internal_extend_target(Network CONDITION QT_FEATURE_ocsp AND QT_FEATURE_opens
         ssl/qocsp_p.h
 )
 
-qt_internal_extend_target(Network CONDITION QT_FEATURE_dnslookup AND UNIX AND NOT ANDROID
-    SOURCES
-        kernel/qdnslookup_unix.cpp
-)
 qt_internal_add_docs(Network
     doc/qtnetwork.qdocconf
 )
 
-qt_internal_extend_target(Network CONDITION WIN32 PUBLIC_LIBRARIES ws2_32) # special case: mkspecs/common/msvc-desktop.conf
+# See mkspecs/common/msvc-desktop.conf
+qt_internal_extend_target(Network CONDITION WIN32 PUBLIC_LIBRARIES ws2_32)
 
-qt_internal_extend_target(Network CONDITION QNX PUBLIC_LIBRARIES socket) # special case: mkspecs/common/qcc-base-qnx.conf
+# See mkspecs/common/qcc-base-qnx.conf
+qt_internal_extend_target(Network CONDITION QNX PUBLIC_LIBRARIES socket)
 
 qt_internal_extend_target(Network CONDITION SOLARIS PUBLIC_LIBRARIES socket nsl)
 
diff --git a/src/network/access/qhttp1configuration.h b/src/network/access/qhttp1configuration.h
index 4b66745f..128b8aa5 100644
--- a/src/network/access/qhttp1configuration.h
+++ b/src/network/access/qhttp1configuration.h
@@ -9,9 +9,7 @@
 #include <utility>
 #include <cstdint>
 
-#ifndef Q_CLANG_QDOC
 QT_REQUIRE_CONFIG(http);
-#endif
 
 QT_BEGIN_NAMESPACE
 
diff --git a/src/network/access/qhttp2configuration.h b/src/network/access/qhttp2configuration.h
index 4b3b7d54..ae08b664 100644
--- a/src/network/access/qhttp2configuration.h
+++ b/src/network/access/qhttp2configuration.h
@@ -8,9 +8,7 @@
 
 #include <QtCore/qshareddata.h>
 
-#ifndef Q_QDOC
 QT_REQUIRE_CONFIG(http);
-#endif
 
 QT_BEGIN_NAMESPACE
 
diff --git a/src/network/access/qnetworkdiskcache.cpp b/src/network/access/qnetworkdiskcache.cpp
index 2fcbd393..0b0db2d3 100644
--- a/src/network/access/qnetworkdiskcache.cpp
+++ b/src/network/access/qnetworkdiskcache.cpp
@@ -16,7 +16,6 @@
 #include <qurl.h>
 #include <qcryptographichash.h>
 #include <qdebug.h>
-#include <QMultiMap>
 
 #include <memory>
 
@@ -482,37 +481,45 @@ qint64 QNetworkDiskCache::expire()
     // close file handle to prevent "in use" error when QFile::remove() is called
     d->lastItem.reset();
 
-    QDir::Filters filters = QDir::AllDirs | QDir:: Files | QDir::NoDotAndDotDot;
+    const QDir::Filters filters = QDir::AllDirs | QDir:: Files | QDir::NoDotAndDotDot;
     QDirIterator it(cacheDirectory(), filters, QDirIterator::Subdirectories);
 
-    QMultiMap<QDateTime, QString> cacheItems;
+    struct CacheItem
+    {
+        std::chrono::milliseconds msecs;
+        QString path;
+        qint64 size = 0;
+    };
+    std::vector<CacheItem> cacheItems;
     qint64 totalSize = 0;
     while (it.hasNext()) {
         QFileInfo info = it.nextFileInfo();
-        QString path = info.filePath();
-        QString fileName = info.fileName();
-        if (fileName.endsWith(CACHE_POSTFIX)) {
-            const QDateTime birthTime = info.fileTime(QFile::FileBirthTime);
-            cacheItems.insert(birthTime.isValid() ? birthTime
-                              : info.fileTime(QFile::FileMetadataChangeTime), path);
-            totalSize += info.size();
-        }
+        if (!info.fileName().endsWith(CACHE_POSTFIX))
+            continue;
+
+        QDateTime fileTime = info.birthTime(QTimeZone::UTC);
+        if (!fileTime.isValid())
+            fileTime = info.metadataChangeTime(QTimeZone::UTC);
+        const std::chrono::milliseconds msecs{fileTime.toMSecsSinceEpoch()};
+        const qint64 size = info.size();
+        cacheItems.push_back(CacheItem{msecs, info.filePath(), size});
+        totalSize += size;
     }
 
+    const qint64 goal = (maximumCacheSize() * 9) / 10;
+    if (totalSize < goal)
+        return totalSize; // Nothing to do
+
+    auto byFileTime = [&](const auto &a, const auto &b) { return a.msecs < b.msecs; };
+    std::sort(cacheItems.begin(), cacheItems.end(), byFileTime);
+
     [[maybe_unused]] int removedFiles = 0; // used under QNETWORKDISKCACHE_DEBUG
-    qint64 goal = (maximumCacheSize() * 9) / 10;
-    QMultiMap<QDateTime, QString>::const_iterator i = cacheItems.constBegin();
-    while (i != cacheItems.constEnd()) {
+    for (const CacheItem &cached : cacheItems) {
+        QFile::remove(cached.path);
+        ++removedFiles;
+        totalSize -= cached.size;
         if (totalSize < goal)
             break;
-        QString name = i.value();
-        QFile file(name);
-
-        qint64 size = file.size();
-        file.remove();
-        totalSize -= size;
-        ++removedFiles;
-        ++i;
     }
 #if defined(QNETWORKDISKCACHE_DEBUG)
     if (removedFiles > 0) {
diff --git a/src/network/access/qnetworkreplywasmimpl.cpp b/src/network/access/qnetworkreplywasmimpl.cpp
index d63e7303..be5b0f5f 100644
--- a/src/network/access/qnetworkreplywasmimpl.cpp
+++ b/src/network/access/qnetworkreplywasmimpl.cpp
@@ -538,6 +538,8 @@ void QNetworkReplyWasmImplPrivate::downloadFailed(emscripten_fetch_t *fetch)
                 reasonStr = QStringLiteral("Operation canceled");
             else
                 reasonStr = QString::fromUtf8(fetch->statusText);
+            QByteArray buffer(fetch->data, fetch->numBytes);
+            reply->dataReceived(buffer, buffer.size());
             QByteArray statusText(fetch->statusText);
             reply->setStatusCode(fetch->status, statusText);
             reply->emitReplyError(reply->statusCodeFromHttp(fetch->status, reply->request.url()), reasonStr);
diff --git a/src/network/access/qnetworkrequest.cpp b/src/network/access/qnetworkrequest.cpp
index 0e0da130..c99c5f05 100644
--- a/src/network/access/qnetworkrequest.cpp
+++ b/src/network/access/qnetworkrequest.cpp
@@ -6,7 +6,7 @@
 #include "qplatformdefs.h"
 #include "qnetworkcookie.h"
 #include "qsslconfiguration.h"
-#if QT_CONFIG(http) || defined(Q_QDOC)
+#if QT_CONFIG(http)
 #include "qhttp1configuration.h"
 #include "qhttp2configuration.h"
 #include "private/http2protocol_p.h"
@@ -221,7 +221,7 @@ QT_IMPL_METATYPE_EXTERN_TAGGED(QNetworkRequest::RedirectPolicy, QNetworkRequest_
         Requests only, type: QMetaType::Int (default: QNetworkRequest::Automatic)
         Indicates whether to use cached authorization credentials in the request,
         if available. If this is set to QNetworkRequest::Manual and the authentication
-        mechanism is 'Basic' or 'Digest', Qt will not send an an 'Authorization' HTTP
+        mechanism is 'Basic' or 'Digest', Qt will not send an 'Authorization' HTTP
         header with any cached credentials it may have for the request's URL.
         This attribute is set to QNetworkRequest::Manual by Qt WebKit when creating a cross-origin
         XMLHttpRequest where withCredentials has not been set explicitly to true by the
@@ -859,7 +859,7 @@ void QNetworkRequest::setPeerVerifyName(const QString &peerName)
     d->peerVerifyName = peerName;
 }
 
-#if QT_CONFIG(http) || defined(Q_QDOC)
+#if QT_CONFIG(http)
 /*!
     \since 6.5
 
@@ -969,9 +969,9 @@ void QNetworkRequest::setDecompressedSafetyCheckThreshold(qint64 threshold)
 {
     d->decompressedSafetyCheckThreshold = threshold;
 }
-#endif // QT_CONFIG(http) || defined(Q_QDOC)
+#endif // QT_CONFIG(http)
 
-#if QT_CONFIG(http) || defined(Q_QDOC) || defined (Q_OS_WASM)
+#if QT_CONFIG(http) || defined (Q_OS_WASM)
 /*!
     \since 5.15
 
@@ -1005,7 +1005,7 @@ void QNetworkRequest::setTransferTimeout(int timeout)
 {
     d->transferTimeout = timeout;
 }
-#endif // QT_CONFIG(http) || defined(Q_QDOC) || defined (Q_OS_WASM)
+#endif // QT_CONFIG(http) || defined (Q_OS_WASM)
 
 static QByteArray headerName(QNetworkRequest::KnownHeaders header)
 {
diff --git a/src/network/access/qnetworkrequest.h b/src/network/access/qnetworkrequest.h
index 3476aa02..2e7456b9 100644
--- a/src/network/access/qnetworkrequest.h
+++ b/src/network/access/qnetworkrequest.h
@@ -144,7 +144,7 @@ public:
 
     QString peerVerifyName() const;
     void setPeerVerifyName(const QString &peerName);
-#if QT_CONFIG(http) || defined(Q_QDOC)
+#if QT_CONFIG(http)
     QHttp1Configuration http1Configuration() const;
     void setHttp1Configuration(const QHttp1Configuration &configuration);
 
@@ -153,12 +153,12 @@ public:
 
     qint64 decompressedSafetyCheckThreshold() const;
     void setDecompressedSafetyCheckThreshold(qint64 threshold);
-#endif // QT_CONFIG(http) || defined(Q_QDOC)
+#endif // QT_CONFIG(http)
 
-#if QT_CONFIG(http) || defined(Q_QDOC) || defined (Q_OS_WASM)
+#if QT_CONFIG(http) || defined (Q_OS_WASM)
     int transferTimeout() const;
     void setTransferTimeout(int timeout = DefaultTransferTimeoutConstant);
-#endif // QT_CONFIG(http) || defined(Q_QDOC) || defined (Q_OS_WASM)
+#endif // QT_CONFIG(http) || defined (Q_OS_WASM)
 private:
     QSharedDataPointer<QNetworkRequestPrivate> d;
     friend class QNetworkRequestPrivate;
diff --git a/src/network/android/jar/CMakeLists.txt b/src/network/android/jar/CMakeLists.txt
index c2673c2b..b5172b6a 100644
--- a/src/network/android/jar/CMakeLists.txt
+++ b/src/network/android/jar/CMakeLists.txt
@@ -12,6 +12,7 @@ qt_internal_add_jar(Qt${QtBase_VERSION_MAJOR}AndroidNetwork
 )
 
 qt_path_join(destination ${INSTALL_DATADIR} "jar")
+
 install_jar(Qt${QtBase_VERSION_MAJOR}AndroidNetwork
     DESTINATION ${destination}
     COMPONENT Devel
diff --git a/src/network/configure.cmake b/src/network/configure.cmake
index aef7f150..f24f739c 100644
--- a/src/network/configure.cmake
+++ b/src/network/configure.cmake
@@ -12,7 +12,7 @@ qt_find_package(Libproxy PROVIDED_TARGETS PkgConfig::Libproxy MODULE_NAME networ
 qt_find_package(GSSAPI PROVIDED_TARGETS GSSAPI::GSSAPI MODULE_NAME network QMAKE_LIB gssapi)
 qt_find_package(GLIB2 OPTIONAL_COMPONENTS GOBJECT PROVIDED_TARGETS GLIB2::GOBJECT MODULE_NAME core QMAKE_LIB gobject)
 qt_find_package(GLIB2 OPTIONAL_COMPONENTS GIO PROVIDED_TARGETS GLIB2::GIO MODULE_NAME core QMAKE_LIB gio)
-
+qt_find_package(WrapResolv PROVIDED_TARGETS WrapResolv::WrapResolv MODULE_NAME network QMAKE_LIB libresolv)
 
 #### Tests
 
@@ -100,6 +100,25 @@ ci.ifa_prefered = ci.ifa_valid = 0;
 }
 ")
 
+# res_setserver
+qt_config_compile_test(res_setservers
+    LABEL "res_setservers()"
+    LIBRARIES
+        WrapResolv::WrapResolv
+    CODE
+"#include <sys/types.h>
+#include <netinet/in.h>
+#include <resolv.h>
+int main()
+{
+    union res_sockaddr_union sa;
+    res_state s = nullptr;
+    res_setservers(s, &sa, 1);
+    return 0;
+}
+"
+)
+
 # sctp
 qt_config_compile_test(sctp
     LABEL "SCTP support"
@@ -202,6 +221,11 @@ qt_feature("ipv6ifname" PUBLIC
     CONDITION TEST_ipv6ifname
 )
 qt_feature_definition("ipv6ifname" "QT_NO_IPV6IFNAME" NEGATE VALUE "1")
+qt_feature("libresolv" PRIVATE
+    LABEL "libresolv"
+    CONDITION WrapResolv_FOUND
+    AUTODETECT UNIX
+)
 qt_feature("libproxy" PRIVATE
     LABEL "libproxy"
     AUTODETECT OFF
@@ -211,6 +235,10 @@ qt_feature("linux-netlink" PRIVATE
     LABEL "Linux AF_NETLINK"
     CONDITION LINUX AND NOT ANDROID AND TEST_linux_netlink
 )
+qt_feature("res_setservers" PRIVATE
+    LABEL "res_setservers()"
+    CONDITION QT_FEATURE_libresolv AND TEST_res_setservers
+)
 qt_feature("securetransport" PUBLIC
     LABEL "SecureTransport"
     CONDITION APPLE
@@ -307,7 +335,7 @@ qt_feature("dnslookup" PUBLIC
     SECTION "Networking"
     LABEL "QDnsLookup"
     PURPOSE "Provides API for DNS lookups."
-    CONDITION NOT INTEGRITY
+    CONDITION QT_FEATURE_thread AND NOT INTEGRITY
 )
 qt_feature("gssapi" PUBLIC
     SECTION "Networking"
@@ -333,7 +361,7 @@ qt_feature("topleveldomain" PUBLIC
     SECTION "Networking"
     LABEL "qIsEffectiveTLD()"
     PURPOSE "Provides support for checking if a domain is a top level domain. If enabled, a binary dump of the Public Suffix List (http://www.publicsuffix.org, Mozilla License) is included. The data is used in QNetworkCookieJar."
-
+    AUTODETECT NOT WASM
     DISABLE INPUT_publicsuffix STREQUAL "no"
 )
 qt_feature("publicsuffix-qt" PRIVATE
diff --git a/src/network/doc/qtnetwork.qdocconf b/src/network/doc/qtnetwork.qdocconf
index e511d562..ad6f5d28 100644
--- a/src/network/doc/qtnetwork.qdocconf
+++ b/src/network/doc/qtnetwork.qdocconf
@@ -23,7 +23,7 @@ qhp.QtNetwork.subprojects.classes.sortPages = true
 
 tagfile                 = ../../../doc/qtnetwork/qtnetwork.tags
 
-depends                 += qtcore qtgui qtdoc qmake qtcmake qtwidgets
+depends                 += qtcore qtgui qtdoc qmake qtcmake
 
 headerdirs  += ..
 
diff --git a/src/network/kernel/qauthenticator_p.h b/src/network/kernel/qauthenticator_p.h
index f8579a46..7c4fe736 100644
--- a/src/network/kernel/qauthenticator_p.h
+++ b/src/network/kernel/qauthenticator_p.h
@@ -32,7 +32,7 @@ class QSSPIWindowsHandles;
 class QGssApiHandles;
 #endif
 
-class Q_AUTOTEST_EXPORT QAuthenticatorPrivate
+class Q_NETWORK_EXPORT QAuthenticatorPrivate
 {
 public:
     enum Method { None, Basic, Negotiate, Ntlm, DigestMd5, };
diff --git a/src/network/kernel/qdnslookup.cpp b/src/network/kernel/qdnslookup.cpp
index 185ad648..c310c7e2 100644
--- a/src/network/kernel/qdnslookup.cpp
+++ b/src/network/kernel/qdnslookup.cpp
@@ -1,11 +1,14 @@
 // Copyright (C) 2012 Jeremy Lainé <jeremy.laine@m4x.org>
+// Copyright (C) 2023 Intel Corporation.
 // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
 
 #include "qdnslookup.h"
 #include "qdnslookup_p.h"
 
+#include <qapplicationstatic.h>
 #include <qcoreapplication.h>
 #include <qdatetime.h>
+#include <qloggingcategory.h>
 #include <qrandom.h>
 #include <qurl.h>
 
@@ -13,9 +16,20 @@
 
 QT_BEGIN_NAMESPACE
 
-#if QT_CONFIG(thread)
-Q_GLOBAL_STATIC(QDnsLookupThreadPool, theDnsLookupThreadPool);
-#endif
+static Q_LOGGING_CATEGORY(lcDnsLookup, "qt.network.dnslookup", QtCriticalMsg)
+
+namespace {
+struct QDnsLookupThreadPool : QThreadPool
+{
+    QDnsLookupThreadPool()
+    {
+        // Run up to 5 lookups in parallel.
+        setMaxThreadCount(5);
+    }
+};
+}
+
+Q_APPLICATION_STATIC(QDnsLookupThreadPool, theDnsLookupThreadPool);
 
 static bool qt_qdnsmailexchangerecord_less_than(const QDnsMailExchangeRecord &r1, const QDnsMailExchangeRecord &r2)
 {
@@ -119,9 +133,6 @@ static void qt_qdnsservicerecord_sort(QList<QDnsServiceRecord> &records)
     }
 }
 
-const char *QDnsLookupPrivate::msgNoIpV6NameServerAdresses =
-    QT_TRANSLATE_NOOP("QDnsLookupRunnable", "IPv6 addresses for nameservers are currently not supported");
-
 /*!
     \class QDnsLookup
     \brief The QDnsLookup class represents a DNS lookup.
@@ -176,6 +187,9 @@ const char *QDnsLookupPrivate::msgNoIpV6NameServerAdresses =
 
     \value NotFoundError        the requested domain name does not exist
     (NXDOMAIN).
+
+    \value TimeoutError         the server was not reached or did not reply
+    in time (since 6.6).
 */
 
 /*!
@@ -231,8 +245,8 @@ const char *QDnsLookupPrivate::msgNoIpV6NameServerAdresses =
 QDnsLookup::QDnsLookup(QObject *parent)
     : QObject(*new QDnsLookupPrivate, parent)
 {
-    qRegisterMetaType<QDnsLookupReply>();
 }
+
 /*!
     Constructs a QDnsLookup object for the given \a type and \a name and sets
     \a parent as the parent object.
@@ -242,7 +256,6 @@ QDnsLookup::QDnsLookup(Type type, const QString &name, QObject *parent)
     : QObject(*new QDnsLookupPrivate, parent)
 {
     Q_D(QDnsLookup);
-    qRegisterMetaType<QDnsLookupReply>();
     d->name = name;
     d->type = type;
 }
@@ -250,17 +263,39 @@ QDnsLookup::QDnsLookup(Type type, const QString &name, QObject *parent)
 /*!
     \fn QDnsLookup::QDnsLookup(Type type, const QString &name, const QHostAddress &nameserver, QObject *parent)
     \since 5.4
-    Constructs a QDnsLookup object for the given \a type, \a name and
-    \a nameserver and sets \a parent as the parent object.
+
+    Constructs a QDnsLookup object to issue a query for \a name of record type
+    \a type, using the DNS server \a nameserver running on the default DNS port,
+    and sets \a parent as the parent object.
 */
 
 QDnsLookup::QDnsLookup(Type type, const QString &name, const QHostAddress &nameserver, QObject *parent)
+    : QDnsLookup(type, name, nameserver, DnsPort, parent)
+{
+}
+
+/*!
+    \fn QDnsLookup::QDnsLookup(Type type, const QString &name, const QHostAddress &nameserver, quint16 port, QObject *parent)
+    \since 6.6
+
+    Constructs a QDnsLookup object to issue a query for \a name of record type
+    \a type, using the DNS server \a nameserver running on port \a port, and
+    sets \a parent as the parent object.
+
+//! [nameserver-port]
+    \note Setting the port number to any value other than the default (53) can
+    cause the name resolution to fail, depending on the operating system
+    limitations and firewalls. Notably, the Windows API used by QDnsLookup is
+    unable to handle alternate port numbers.
+//! [nameserver-port]
+*/
+QDnsLookup::QDnsLookup(Type type, const QString &name, const QHostAddress &nameserver, quint16 port, QObject *parent)
     : QObject(*new QDnsLookupPrivate, parent)
 {
     Q_D(QDnsLookup);
-    qRegisterMetaType<QDnsLookupReply>();
     d->name = name;
     d->type = type;
+    d->port = port;
     d->nameserver = nameserver;
 }
 
@@ -308,6 +343,10 @@ bool QDnsLookup::isFinished() const
     \property QDnsLookup::name
     \brief the name to lookup.
 
+    If the name to look up is empty, QDnsLookup will attempt to resolve the
+    root domain of DNS. That query is usually performed with QDnsLookup::type
+    set to \l{QDnsLookup::Type}{NS}.
+
     \note The name will be encoded using IDNA, which means it's unsuitable for
     querying SRV records compatible with the DNS-SD specification.
 */
@@ -373,6 +412,46 @@ QBindable<QHostAddress> QDnsLookup::bindableNameserver()
     return &d->nameserver;
 }
 
+/*!
+    \property QDnsLookup::nameserverPort
+    \since 6.6
+    \brief the port number of nameserver to use for DNS lookup.
+    \include qdnslookup.cpp nameserver-port
+*/
+
+quint16 QDnsLookup::nameserverPort() const
+{
+    return d_func()->port;
+}
+
+void QDnsLookup::setNameserverPort(quint16 nameserverPort)
+{
+    Q_D(QDnsLookup);
+    d->port = nameserverPort;
+}
+
+QBindable<quint16> QDnsLookup::bindableNameserverPort()
+{
+    Q_D(QDnsLookup);
+    return &d->port;
+}
+
+/*!
+    \since 6.6
+    Sets the nameserver to \a nameserver and the port to \a port.
+
+    \include qdnslookup.cpp nameserver-port
+
+    \sa QDnsLookup::nameserver, QDnsLookup::nameserverPort
+*/
+void QDnsLookup::setNameserver(const QHostAddress &nameserver, quint16 port)
+{
+    Qt::beginPropertyUpdateGroup();
+    setNameserver(nameserver);
+    setNameserverPort(port);
+    Qt::endPropertyUpdateGroup();
+}
+
 /*!
     Returns the list of canonical name records associated with this lookup.
 */
@@ -474,13 +553,29 @@ void QDnsLookup::lookup()
     Q_D(QDnsLookup);
     d->isFinished = false;
     d->reply = QDnsLookupReply();
-    d->runnable = new QDnsLookupRunnable(d->type, QUrl::toAce(d->name), d->nameserver);
-    connect(d->runnable, SIGNAL(finished(QDnsLookupReply)),
-            this, SLOT(_q_lookupFinished(QDnsLookupReply)),
-            Qt::BlockingQueuedConnection);
-#if QT_CONFIG(thread)
-    theDnsLookupThreadPool()->start(d->runnable);
+    if (!QCoreApplication::instance()) {
+        // NOT qCWarning because this isn't a result of the lookup
+        qWarning("QDnsLookup requires a QCoreApplication");
+        return;
+    }
+
+    auto l = [this](const QDnsLookupReply &reply) {
+        Q_D(QDnsLookup);
+        if (d->runnable == sender()) {
+#ifdef QDNSLOOKUP_DEBUG
+            qDebug("DNS reply for %s: %i (%s)", qPrintable(d->name), reply.error, qPrintable(reply.errorString));
 #endif
+            d->reply = reply;
+            d->runnable = nullptr;
+            d->isFinished = true;
+            emit finished();
+        }
+    };
+
+    d->runnable = new QDnsLookupRunnable(d);
+    connect(d->runnable, &QDnsLookupRunnable::finished, this, l,
+            Qt::BlockingQueuedConnection);
+    theDnsLookupThreadPool->start(d->runnable);
 }
 
 /*!
@@ -957,18 +1052,26 @@ QDnsTextRecord &QDnsTextRecord::operator=(const QDnsTextRecord &other)
     very fast and never fails.
 */
 
-void QDnsLookupPrivate::_q_lookupFinished(const QDnsLookupReply &_reply)
+static QDnsLookupRunnable::EncodedLabel encodeLabel(const QString &label)
 {
-    Q_Q(QDnsLookup);
-    if (runnable == q->sender()) {
-#ifdef QDNSLOOKUP_DEBUG
-        qDebug("DNS reply for %s: %i (%s)", qPrintable(name), _reply.error, qPrintable(_reply.errorString));
+    QDnsLookupRunnable::EncodedLabel::value_type rootDomain = u'.';
+    if (label.isEmpty())
+        return QDnsLookupRunnable::EncodedLabel(1, rootDomain);
+
+    QString encodedLabel = qt_ACE_do(label, ToAceOnly, ForbidLeadingDot);
+#ifdef Q_OS_WIN
+    return encodedLabel;
+#else
+    return std::move(encodedLabel).toLatin1();
 #endif
-        reply = _reply;
-        runnable = nullptr;
-        isFinished = true;
-        emit q->finished();
-    }
+}
+
+inline QDnsLookupRunnable::QDnsLookupRunnable(const QDnsLookupPrivate *d)
+    : requestName(encodeLabel(d->name)),
+      nameserver(d->nameserver),
+      requestType(d->type),
+      port(d->port)
+{
 }
 
 void QDnsLookupRunnable::run()
@@ -978,62 +1081,51 @@ void QDnsLookupRunnable::run()
     // Validate input.
     if (qsizetype n = requestName.size(); n > MaxDomainNameLength || n == 0) {
         reply.error = QDnsLookup::InvalidRequestError;
-        reply.errorString = tr("Invalid domain name");
-        emit finished(reply);
-        if (n) {
-            qWarning("QDnsLookup: domain name being looked up is too long (%" PRIdQSIZETYPE
-                    " bytes)", n);
-        }
-        return;
+        reply.errorString = QDnsLookup::tr("Invalid domain name");
+    } else {
+        // Perform request.
+        query(&reply);
+
+        // Sort results.
+        qt_qdnsmailexchangerecord_sort(reply.mailExchangeRecords);
+        qt_qdnsservicerecord_sort(reply.serviceRecords);
     }
 
-    // Perform request.
-    query(requestType, requestName, nameserver, &reply);
-
-    // Sort results.
-    qt_qdnsmailexchangerecord_sort(reply.mailExchangeRecords);
-    qt_qdnsservicerecord_sort(reply.serviceRecords);
-
     emit finished(reply);
-}
 
-#if QT_CONFIG(thread)
-QDnsLookupThreadPool::QDnsLookupThreadPool()
-    : signalsConnected(false)
-{
-    // Run up to 5 lookups in parallel.
-    setMaxThreadCount(5);
-}
+    // maybe print the lookup error as warning
+    switch (reply.error) {
+    case QDnsLookup::NoError:
+    case QDnsLookup::OperationCancelledError:
+    case QDnsLookup::NotFoundError:
+    case QDnsLookup::ServerFailureError:
+    case QDnsLookup::ServerRefusedError:
+    case QDnsLookup::TimeoutError:
+        break;      // no warning for these
 
-void QDnsLookupThreadPool::start(QRunnable *runnable)
-{
-    // Ensure threads complete at application destruction.
-    if (!signalsConnected) {
-        QMutexLocker signalsLocker(&signalsMutex);
-        if (!signalsConnected) {
-            QCoreApplication *app = QCoreApplication::instance();
-            if (!app) {
-                qWarning("QDnsLookup requires a QCoreApplication");
-                delete runnable;
-                return;
-            }
-
-            moveToThread(app->thread());
-            connect(app, SIGNAL(destroyed()),
-                SLOT(_q_applicationDestroyed()), Qt::DirectConnection);
-            signalsConnected = true;
-        }
+    case QDnsLookup::ResolverError:
+    case QDnsLookup::InvalidRequestError:
+    case QDnsLookup::InvalidReplyError:
+        qCWarning(lcDnsLookup()).nospace()
+                << "DNS lookup failed (" << reply.error << "): "
+              << qUtf16Printable(reply.errorString)
+              << "; request was " << this;  // continues below
     }
-
-    QThreadPool::start(runnable);
 }
 
-void QDnsLookupThreadPool::_q_applicationDestroyed()
+inline QDebug operator<<(QDebug &d, QDnsLookupRunnable *r)
 {
-    waitForDone();
-    signalsConnected = false;
+    // continued: print the information about the request
+    d << r->requestName.left(MaxDomainNameLength);
+    if (r->requestName.size() > MaxDomainNameLength)
+        d << "... (truncated)";
+    d << " type " << r->requestType;
+    if (!r->nameserver.isNull())
+        d << " to nameserver " << qUtf16Printable(r->nameserver.toString())
+          << " port " << (r->port ? r->port : DnsPort);
+    return d;
 }
-#endif // QT_CONFIG(thread)
+
 QT_END_NAMESPACE
 
 #include "moc_qdnslookup.cpp"
diff --git a/src/network/kernel/qdnslookup.h b/src/network/kernel/qdnslookup.h
index b0bb34ee..ae89a0a1 100644
--- a/src/network/kernel/qdnslookup.h
+++ b/src/network/kernel/qdnslookup.h
@@ -8,7 +8,6 @@
 #include <QtCore/qlist.h>
 #include <QtCore/qobject.h>
 #include <QtCore/qshareddata.h>
-#include <QtCore/qsharedpointer.h>
 #include <QtCore/qstring.h>
 #include <QtCore/qproperty.h>
 
@@ -147,6 +146,8 @@ class Q_NETWORK_EXPORT QDnsLookup : public QObject
     Q_PROPERTY(Type type READ type WRITE setType NOTIFY typeChanged BINDABLE bindableType)
     Q_PROPERTY(QHostAddress nameserver READ nameserver WRITE setNameserver NOTIFY nameserverChanged
                BINDABLE bindableNameserver)
+    Q_PROPERTY(quint16 nameserverPort READ nameserverPort WRITE setNameserverPort
+               NOTIFY nameserverPortChanged BINDABLE bindableNameserverPort)
 
 public:
     enum Error
@@ -158,7 +159,8 @@ public:
         InvalidReplyError,
         ServerFailureError,
         ServerRefusedError,
-        NotFoundError
+        NotFoundError,
+        TimeoutError,
     };
     Q_ENUM(Error)
 
@@ -179,6 +181,8 @@ public:
     explicit QDnsLookup(QObject *parent = nullptr);
     QDnsLookup(Type type, const QString &name, QObject *parent = nullptr);
     QDnsLookup(Type type, const QString &name, const QHostAddress &nameserver, QObject *parent = nullptr);
+    QDnsLookup(Type type, const QString &name, const QHostAddress &nameserver, quint16 port,
+               QObject *parent = nullptr);
     ~QDnsLookup();
 
     Error error() const;
@@ -196,6 +200,10 @@ public:
     QHostAddress nameserver() const;
     void setNameserver(const QHostAddress &nameserver);
     QBindable<QHostAddress> bindableNameserver();
+    quint16 nameserverPort() const;
+    void setNameserverPort(quint16 port);
+    QBindable<quint16> bindableNameserverPort();
+    void setNameserver(const QHostAddress &nameserver, quint16 port);
 
     QList<QDnsDomainNameRecord> canonicalNameRecords() const;
     QList<QDnsHostAddressRecord> hostAddressRecords() const;
@@ -215,10 +223,10 @@ Q_SIGNALS:
     void nameChanged(const QString &name);
     void typeChanged(Type type);
     void nameserverChanged(const QHostAddress &nameserver);
+    void nameserverPortChanged(quint16 port);
 
 private:
     Q_DECLARE_PRIVATE(QDnsLookup)
-    Q_PRIVATE_SLOT(d_func(), void _q_lookupFinished(const QDnsLookupReply &reply))
 };
 
 QT_END_NAMESPACE
diff --git a/src/network/kernel/qdnslookup_android.cpp b/src/network/kernel/qdnslookup_android.cpp
deleted file mode 100644
index 8fc1265e..00000000
--- a/src/network/kernel/qdnslookup_android.cpp
+++ /dev/null
@@ -1,20 +0,0 @@
-// Copyright (C) 2012 Collabora Ltd, author <robin.burchell@collabora.co.uk>
-// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
-
-#include "qdnslookup_p.h"
-
-QT_BEGIN_NAMESPACE
-
-void QDnsLookupRunnable::query(const int requestType, const QByteArray &requestName, const QHostAddress &nameserver, QDnsLookupReply *reply)
-{
-    Q_UNUSED(requestType);
-    Q_UNUSED(requestName);
-    Q_UNUSED(nameserver);
-    Q_UNUSED(reply);
-    qWarning("Not yet supported on Android");
-    reply->error = QDnsLookup::ResolverError;
-    reply->errorString = tr("Not yet supported on Android");
-    return;
-}
-
-QT_END_NAMESPACE
diff --git a/src/network/kernel/qdnslookup_dummy.cpp b/src/network/kernel/qdnslookup_dummy.cpp
new file mode 100644
index 00000000..6cc6ed92
--- /dev/null
+++ b/src/network/kernel/qdnslookup_dummy.cpp
@@ -0,0 +1,15 @@
+// Copyright (C) 2012 Collabora Ltd, author <robin.burchell@collabora.co.uk>
+// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
+
+#include "qdnslookup_p.h"
+
+QT_BEGIN_NAMESPACE
+
+void QDnsLookupRunnable::query(QDnsLookupReply *reply)
+{
+    reply->error = QDnsLookup::ResolverError;
+    reply->errorString = tr("Not yet supported on this OS");
+    return;
+}
+
+QT_END_NAMESPACE
diff --git a/src/network/kernel/qdnslookup_p.h b/src/network/kernel/qdnslookup_p.h
index 4855e4bc..da472141 100644
--- a/src/network/kernel/qdnslookup_p.h
+++ b/src/network/kernel/qdnslookup_p.h
@@ -1,4 +1,5 @@
 // Copyright (C) 2012 Jeremy Lainé <jeremy.laine@m4x.org>
+// Copyright (C) 2023 Intel Corporation.
 // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
 
 #ifndef QDNSLOOKUP_P_H
@@ -18,13 +19,13 @@
 #include <QtNetwork/private/qtnetworkglobal_p.h>
 #include "QtCore/qmutex.h"
 #include "QtCore/qrunnable.h"
-#include "QtCore/qsharedpointer.h"
 #if QT_CONFIG(thread)
 #include "QtCore/qthreadpool.h"
 #endif
 #include "QtNetwork/qdnslookup.h"
 #include "QtNetwork/qhostaddress.h"
 #include "private/qobject_p.h"
+#include "private/qurl_p.h"
 
 QT_REQUIRE_CONFIG(dnslookup);
 
@@ -33,16 +34,15 @@ QT_BEGIN_NAMESPACE
 //#define QDNSLOOKUP_DEBUG
 
 constexpr qsizetype MaxDomainNameLength = 255;
+constexpr quint16 DnsPort = 53;
+
 class QDnsLookupRunnable;
+QDebug operator<<(QDebug &, QDnsLookupRunnable *);
 
 class QDnsLookupReply
 {
 public:
-    QDnsLookupReply()
-        : error(QDnsLookup::NoError)
-    { }
-
-    QDnsLookup::Error error;
+    QDnsLookup::Error error = QDnsLookup::NoError;
     QString errorString;
 
     QList<QDnsDomainNameRecord> canonicalNameRecords;
@@ -52,23 +52,86 @@ public:
     QList<QDnsDomainNameRecord> pointerRecords;
     QList<QDnsServiceRecord> serviceRecords;
     QList<QDnsTextRecord> textRecords;
+
+    // helper methods
+    void setError(QDnsLookup::Error err, QString &&msg)
+    {
+        error = err;
+        errorString = std::move(msg);
+    }
+
+    void makeResolverSystemError(int code = -1)
+    {
+        Q_ASSERT(allAreEmpty());
+        setError(QDnsLookup::ResolverError, qt_error_string(code));
+    }
+
+    void makeTimeoutError()
+    {
+        Q_ASSERT(allAreEmpty());
+        setError(QDnsLookup::TimeoutError, QDnsLookup::tr("Request timed out"));
+    }
+
+    void makeDnsRcodeError(quint8 rcode)
+    {
+        Q_ASSERT(allAreEmpty());
+        switch (rcode) {
+        case 1:     // FORMERR
+            error = QDnsLookup::InvalidRequestError;
+            errorString = QDnsLookup::tr("Server could not process query");
+            return;
+        case 2:     // SERVFAIL
+        case 4:     // NOTIMP
+            error = QDnsLookup::ServerFailureError;
+            errorString = QDnsLookup::tr("Server failure");
+            return;
+        case 3:     // NXDOMAIN
+            error = QDnsLookup::NotFoundError;
+            errorString = QDnsLookup::tr("Non existent domain");
+            return;
+        case 5:     // REFUSED
+            error = QDnsLookup::ServerRefusedError;
+            errorString = QDnsLookup::tr("Server refused to answer");
+            return;
+        default:
+            error = QDnsLookup::InvalidReplyError;
+            errorString = QDnsLookup::tr("Invalid reply received (rcode %1)")
+                    .arg(rcode);
+            return;
+        }
+    }
+
+    void makeInvalidReplyError(QString &&msg = QString())
+    {
+        if (msg.isEmpty())
+            msg = QDnsLookup::tr("Invalid reply received");
+        else
+            msg = QDnsLookup::tr("Invalid reply received (%1)").arg(std::move(msg));
+        *this = QDnsLookupReply();  // empty our lists
+        setError(QDnsLookup::InvalidReplyError, std::move(msg));
+    }
+
+private:
+    bool allAreEmpty() const
+    {
+        return canonicalNameRecords.isEmpty()
+                && hostAddressRecords.isEmpty()
+                && mailExchangeRecords.isEmpty()
+                && nameServerRecords.isEmpty()
+                && pointerRecords.isEmpty()
+                && serviceRecords.isEmpty()
+                && textRecords.isEmpty();
+    }
 };
 
 class QDnsLookupPrivate : public QObjectPrivate
 {
 public:
     QDnsLookupPrivate()
-        : isFinished(false)
-        , type(QDnsLookup::A)
-        , runnable(nullptr)
+        : type(QDnsLookup::A)
+        , port(DnsPort)
     { }
 
-    void _q_lookupFinished(const QDnsLookupReply &reply);
-
-    static const char *msgNoIpV6NameServerAdresses;
-
-    bool isFinished;
-
     void nameChanged()
     {
         emit q_func()->nameChanged(name);
@@ -76,6 +139,13 @@ public:
     Q_OBJECT_BINDABLE_PROPERTY(QDnsLookupPrivate, QString, name,
                                &QDnsLookupPrivate::nameChanged);
 
+    void nameserverChanged()
+    {
+        emit q_func()->nameserverChanged(nameserver);
+    }
+    Q_OBJECT_BINDABLE_PROPERTY(QDnsLookupPrivate, QHostAddress, nameserver,
+                               &QDnsLookupPrivate::nameserverChanged);
+
     void typeChanged()
     {
         emit q_func()->typeChanged(type);
@@ -84,15 +154,18 @@ public:
     Q_OBJECT_BINDABLE_PROPERTY(QDnsLookupPrivate, QDnsLookup::Type,
                                type, &QDnsLookupPrivate::typeChanged);
 
-    void nameserverChanged()
+    void nameserverPortChanged()
     {
-        emit q_func()->nameserverChanged(nameserver);
+        emit q_func()->nameserverPortChanged(port);
     }
-    Q_OBJECT_BINDABLE_PROPERTY(QDnsLookupPrivate, QHostAddress, nameserver,
-                               &QDnsLookupPrivate::nameserverChanged);
+
+    Q_OBJECT_BINDABLE_PROPERTY(QDnsLookupPrivate, quint16,
+                               port, &QDnsLookupPrivate::nameserverPortChanged);
+
 
     QDnsLookupReply reply;
-    QDnsLookupRunnable *runnable;
+    QDnsLookupRunnable *runnable = nullptr;
+    bool isFinished = false;
 
     Q_DECLARE_PUBLIC(QDnsLookup)
 };
@@ -102,41 +175,32 @@ class QDnsLookupRunnable : public QObject, public QRunnable
     Q_OBJECT
 
 public:
-    QDnsLookupRunnable(QDnsLookup::Type type, const QByteArray &name, const QHostAddress &nameserver)
-        : requestType(type)
-        , requestName(name)
-        , nameserver(nameserver)
-    { }
+#ifdef Q_OS_WIN
+    using EncodedLabel = QString;
+#else
+    using EncodedLabel = QByteArray;
+#endif
+
+    QDnsLookupRunnable(const QDnsLookupPrivate *d);
     void run() override;
 
 signals:
     void finished(const QDnsLookupReply &reply);
 
 private:
-    static void query(const int requestType, const QByteArray &requestName, const QHostAddress &nameserver, QDnsLookupReply *reply);
-    QDnsLookup::Type requestType;
-    QByteArray requestName;
+    template <typename T> static QString decodeLabel(T encodedLabel)
+    {
+        return qt_ACE_do(encodedLabel.toString(), NormalizeAce, ForbidLeadingDot);
+    }
+    void query(QDnsLookupReply *reply);
+
+    EncodedLabel requestName;
     QHostAddress nameserver;
+    QDnsLookup::Type requestType;
+    quint16 port;
+    friend QDebug operator<<(QDebug &, QDnsLookupRunnable *);
 };
 
-#if QT_CONFIG(thread)
-class QDnsLookupThreadPool : public QThreadPool
-{
-    Q_OBJECT
-
-public:
-    QDnsLookupThreadPool();
-    void start(QRunnable *runnable);
-
-private slots:
-    void _q_applicationDestroyed();
-
-private:
-    QMutex signalsMutex;
-    bool signalsConnected;
-};
-#endif // QT_CONFIG(thread)
-
 class QDnsRecordPrivate : public QSharedData
 {
 public:
diff --git a/src/network/kernel/qdnslookup_unix.cpp b/src/network/kernel/qdnslookup_unix.cpp
index 87a31534..57ac430e 100644
--- a/src/network/kernel/qdnslookup_unix.cpp
+++ b/src/network/kernel/qdnslookup_unix.cpp
@@ -1,410 +1,384 @@
 // Copyright (C) 2012 Jeremy Lainé <jeremy.laine@m4x.org>
+// Copyright (C) 2023 Intel Corporation.
 // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
 
 #include "qdnslookup_p.h"
 
-#if QT_CONFIG(library)
-#include <qlibrary.h>
-#endif
-#include <qvarlengtharray.h>
+#include <qendian.h>
 #include <qscopedpointer.h>
 #include <qurl.h>
-#include <private/qnativesocketengine_p.h>
+#include <qvarlengtharray.h>
+#include <private/qnativesocketengine_p.h>      // for setSockAddr
+#include <private/qtnetwork-config_p.h>
+
+QT_REQUIRE_CONFIG(libresolv);
 
 #include <sys/types.h>
 #include <netinet/in.h>
 #include <arpa/nameser.h>
-#if !defined(Q_OS_OPENBSD)
+#if __has_include(<arpa/nameser_compat.h>)
 #  include <arpa/nameser_compat.h>
 #endif
+#include <errno.h>
 #include <resolv.h>
 
-#if defined(__GNU_LIBRARY__) && !defined(__UCLIBC__)
-#  include <gnu/lib-names.h>
-#endif
+#include <array>
 
-#if defined(Q_OS_FREEBSD) || QT_CONFIG(dlopen)
-#  include <dlfcn.h>
+#ifndef T_OPT
+// the older arpa/nameser_compat.h wasn't updated between 1999 and 2016 in glibc
+#  define T_OPT     ns_t_opt
 #endif
 
-#include <cstring>
-
 QT_BEGIN_NAMESPACE
 
 using namespace Qt::StringLiterals;
 
-#if QT_CONFIG(library)
+// minimum IPv6 MTU (1280) minus the IPv6 (40) and UDP headers (8)
+static constexpr qsizetype ReplyBufferSize = 1280 - 40 - 8;
 
-#if defined(Q_OS_OPENBSD)
-typedef struct __res_state* res_state;
-#endif
-typedef int (*dn_expand_proto)(const unsigned char *, const unsigned char *, const unsigned char *, char *, int);
-static dn_expand_proto local_dn_expand = nullptr;
-typedef void (*res_nclose_proto)(res_state);
-static res_nclose_proto local_res_nclose = nullptr;
-typedef int (*res_ninit_proto)(res_state);
-static res_ninit_proto local_res_ninit = nullptr;
-typedef int (*res_nquery_proto)(res_state, const char *, int, int, unsigned char *, int);
-static res_nquery_proto local_res_nquery = nullptr;
-
-// Custom deleter to close resolver state.
-
-struct QDnsLookupStateDeleter
-{
-    static inline void cleanup(struct __res_state *pointer)
-    {
-        local_res_nclose(pointer);
-    }
+// https://www.rfc-editor.org/rfc/rfc6891
+static constexpr unsigned char Edns0Record[] = {
+    0x00,                                           // root label
+    T_OPT >> 8, T_OPT & 0xff,                       // type OPT
+    ReplyBufferSize >> 8, ReplyBufferSize & 0xff,   // payload size
+    NOERROR,                                        // extended rcode
+    0,                                              // version
+    0x00, 0x00,                                     // flags
+    0x00, 0x00,                                     // option length
 };
 
-static QFunctionPointer resolveSymbol(QLibrary &lib, const char *sym)
-{
-    if (lib.isLoaded())
-        return lib.resolve(sym);
+// maximum length of a EDNS0 query with a 255-character domain (rounded up to 16)
+static constexpr qsizetype QueryBufferSize =
+        HFIXEDSZ + QFIXEDSZ + MAXCDNAME + 1 + sizeof(Edns0Record);
+using QueryBuffer = std::array<unsigned char, (QueryBufferSize + 15) / 16 * 16>;
 
-#if defined(RTLD_DEFAULT) && (defined(Q_OS_FREEBSD) || QT_CONFIG(dlopen))
-    return reinterpret_cast<QFunctionPointer>(dlsym(RTLD_DEFAULT, sym));
-#else
-    return nullptr;
-#endif
+namespace {
+struct QDnsCachedName
+{
+    QString name;
+    int code = 0;
+    QDnsCachedName(const QString &name, int code) : name(name), code(code) {}
+};
 }
+Q_DECLARE_TYPEINFO(QDnsCachedName, Q_RELOCATABLE_TYPE);
+using Cache = QList<QDnsCachedName>;    // QHash or QMap are overkill
 
-static bool resolveLibraryInternal()
+#if QT_CONFIG(res_setservers)
+// https://www.ibm.com/docs/en/i/7.3?topic=ssw_ibm_i_73/apis/ressetservers.html
+// https://docs.oracle.com/cd/E86824_01/html/E54774/res-setservers-3resolv.html
+static bool applyNameServer(res_state state, const QHostAddress &nameserver, quint16 port)
 {
-    QLibrary lib;
-#ifdef LIBRESOLV_SO
-    lib.setFileName(QStringLiteral(LIBRESOLV_SO));
-    if (!lib.load())
-#endif
-    {
-        lib.setFileName("resolv"_L1);
-        lib.load();
+    if (!nameserver.isNull()) {
+        union res_sockaddr_union u;
+        setSockaddr(reinterpret_cast<sockaddr *>(&u.sin), nameserver, port);
+        res_setservers(state, &u, 1);
     }
-
-    local_dn_expand = dn_expand_proto(resolveSymbol(lib, "__dn_expand"));
-    if (!local_dn_expand)
-        local_dn_expand = dn_expand_proto(resolveSymbol(lib, "dn_expand"));
-
-    local_res_nclose = res_nclose_proto(resolveSymbol(lib, "__res_nclose"));
-    if (!local_res_nclose)
-        local_res_nclose = res_nclose_proto(resolveSymbol(lib, "res_9_nclose"));
-    if (!local_res_nclose)
-        local_res_nclose = res_nclose_proto(resolveSymbol(lib, "res_nclose"));
-
-    local_res_ninit = res_ninit_proto(resolveSymbol(lib, "__res_ninit"));
-    if (!local_res_ninit)
-        local_res_ninit = res_ninit_proto(resolveSymbol(lib, "res_9_ninit"));
-    if (!local_res_ninit)
-        local_res_ninit = res_ninit_proto(resolveSymbol(lib, "res_ninit"));
-
-    local_res_nquery = res_nquery_proto(resolveSymbol(lib, "__res_nquery"));
-    if (!local_res_nquery)
-        local_res_nquery = res_nquery_proto(resolveSymbol(lib, "res_9_nquery"));
-    if (!local_res_nquery)
-        local_res_nquery = res_nquery_proto(resolveSymbol(lib, "res_nquery"));
-
     return true;
 }
-Q_GLOBAL_STATIC_WITH_ARGS(bool, resolveLibrary, (resolveLibraryInternal()))
-
-void QDnsLookupRunnable::query(const int requestType, const QByteArray &requestName, const QHostAddress &nameserver, QDnsLookupReply *reply)
+#else
+template <typename T> void setNsMap(T &ext, std::enable_if_t<sizeof(T::nsmap) != 0, uint16_t> v)
 {
-    // Load dn_expand, res_ninit and res_nquery on demand.
-    resolveLibrary();
+    // Set nsmap[] to indicate that nsaddrs[0] is an IPv6 address
+    // See: https://sourceware.org/ml/libc-hacker/2002-05/msg00035.html
+    // Unneeded since glibc 2.22 (2015), but doesn't hurt to set it
+    // See: https://sourceware.org/git/?p=glibc.git;a=commit;h=2212c1420c92a33b0e0bd9a34938c9814a56c0f7
+    ext.nsmap[0] = v;
+}
+template <typename T> void setNsMap(T &, ...)
+{
+    // fallback
+}
 
-    // If dn_expand, res_ninit or res_nquery is missing, fail.
-    if (!local_dn_expand || !local_res_nclose || !local_res_ninit || !local_res_nquery) {
-        reply->error = QDnsLookup::ResolverError;
-        reply->errorString = tr("Resolver functions not found");
-        return;
+template <bool Condition>
+using EnableIfIPv6 = std::enable_if_t<Condition, const QHostAddress *>;
+
+template <typename State>
+bool setIpv6NameServer(State *state,
+                       EnableIfIPv6<sizeof(std::declval<State>()._u._ext.nsaddrs) != 0> addr,
+                       quint16 port)
+{
+    // glibc-like API to set IPv6 name servers
+    struct sockaddr_in6 *ns = state->_u._ext.nsaddrs[0];
+
+    // nsaddrs will be NULL if no nameserver is set in /etc/resolv.conf
+    if (!ns) {
+        // Memory allocated here will be free()'d in res_close() as we
+        // have done res_init() above.
+        ns = static_cast<struct sockaddr_in6*>(calloc(1, sizeof(struct sockaddr_in6)));
+        Q_CHECK_PTR(ns);
+        state->_u._ext.nsaddrs[0] = ns;
     }
 
+    setNsMap(state->_u._ext, MAXNS + 1);
+    state->_u._ext.nscount6 = 1;
+    setSockaddr(ns, *addr, port);
+    return true;
+}
+
+template <typename State> bool setIpv6NameServer(State *, const void *, quint16)
+{
+    // fallback
+    return false;
+}
+
+static bool applyNameServer(res_state state, const QHostAddress &nameserver, quint16 port)
+{
+    if (nameserver.isNull())
+        return true;
+
+    state->nscount = 1;
+    state->nsaddr_list[0].sin_family = AF_UNSPEC;
+    if (nameserver.protocol() == QAbstractSocket::IPv6Protocol)
+        return setIpv6NameServer(state, &nameserver, port);
+    setSockaddr(&state->nsaddr_list[0], nameserver, port);
+    return true;
+}
+#endif // !QT_CONFIG(res_setservers)
+
+static int
+prepareQueryBuffer(res_state state, QueryBuffer &buffer, const char *label, ns_rcode type)
+{
+    // Create header and our query
+    int queryLength = res_nmkquery(state, QUERY, label, C_IN, type, nullptr, 0, nullptr,
+                                   buffer.data(), buffer.size());
+    Q_ASSERT(queryLength < int(buffer.size()));
+    if (Q_UNLIKELY(queryLength < 0))
+        return queryLength;
+
+    // Append EDNS0 record and set the number of additional RRs to 1
+    Q_ASSERT(queryLength + sizeof(Edns0Record) < buffer.size());
+    std::copy_n(std::begin(Edns0Record), sizeof(Edns0Record), buffer.begin() + queryLength);
+    reinterpret_cast<HEADER *>(buffer.data())->arcount = qToBigEndian<quint16>(1);
+
+    return queryLength + sizeof(Edns0Record);
+}
+
+void QDnsLookupRunnable::query(QDnsLookupReply *reply)
+{
     // Initialize state.
-    struct __res_state state;
-    std::memset(&state, 0, sizeof(state));
-    if (local_res_ninit(&state) < 0) {
-        reply->error = QDnsLookup::ResolverError;
-        reply->errorString = tr("Resolver initialization failed");
-        return;
+    std::remove_pointer_t<res_state> state = {};
+    if (res_ninit(&state) < 0) {
+        int error = errno;
+        qErrnoWarning(error, "QDnsLookup: Resolver initialization failed");
+        return reply->makeResolverSystemError(error);
     }
+    auto guard = qScopeGuard([&] { res_nclose(&state); });
 
     //Check if a nameserver was set. If so, use it
-    if (!nameserver.isNull()) {
-        if (nameserver.protocol() == QAbstractSocket::IPv4Protocol) {
-            state.nsaddr_list[0].sin_addr.s_addr = htonl(nameserver.toIPv4Address());
-            state.nscount = 1;
-        } else if (nameserver.protocol() == QAbstractSocket::IPv6Protocol) {
-#if defined(Q_OS_LINUX)
-            struct sockaddr_in6 *ns;
-            ns = state._u._ext.nsaddrs[0];
-            // nsaddrs will be NULL if no nameserver is set in /etc/resolv.conf
-            if (!ns) {
-                // Memory allocated here will be free'd in res_close() as we
-                // have done res_init() above.
-                ns = (struct sockaddr_in6*) calloc(1, sizeof(struct sockaddr_in6));
-                Q_CHECK_PTR(ns);
-                state._u._ext.nsaddrs[0] = ns;
-            }
-#ifndef __UCLIBC__
-            // Set nsmap[] to indicate that nsaddrs[0] is an IPv6 address
-            // See: https://sourceware.org/ml/libc-hacker/2002-05/msg00035.html
-            state._u._ext.nsmap[0] = MAXNS + 1;
-#endif
-            state._u._ext.nscount6 = 1;
-            ns->sin6_family = AF_INET6;
-            ns->sin6_port = htons(53);
-            SetSALen::set(ns, sizeof(*ns));
-
-            Q_IPV6ADDR ipv6Address = nameserver.toIPv6Address();
-            for (int i=0; i<16; i++) {
-                ns->sin6_addr.s6_addr[i] = ipv6Address[i];
-            }
-#else
-            qWarning("%s", QDnsLookupPrivate::msgNoIpV6NameServerAdresses);
-            reply->error = QDnsLookup::ResolverError;
-            reply->errorString = tr(QDnsLookupPrivate::msgNoIpV6NameServerAdresses);
-            return;
-#endif
-        }
-    }
+    if (!applyNameServer(&state, nameserver, port))
+        return reply->setError(QDnsLookup::ResolverError,
+                               QDnsLookup::tr("IPv6 nameservers are currently not supported on this OS"));
 #ifdef QDNSLOOKUP_DEBUG
     state.options |= RES_DEBUG;
 #endif
-    QScopedPointer<struct __res_state, QDnsLookupStateDeleter> state_ptr(&state);
+
+    // Prepare the DNS query.
+    QueryBuffer qbuffer;
+    int queryLength = prepareQueryBuffer(&state, qbuffer, requestName, ns_rcode(requestType));
+    if (Q_UNLIKELY(queryLength < 0))
+        return reply->makeResolverSystemError();
 
     // Perform DNS query.
-    QVarLengthArray<unsigned char, PACKETSZ> buffer(PACKETSZ);
-    std::memset(buffer.data(), 0, buffer.size());
-    int responseLength = local_res_nquery(&state, requestName, C_IN, requestType, buffer.data(), buffer.size());
-    if (Q_UNLIKELY(responseLength > PACKETSZ)) {
-        buffer.resize(responseLength);
-        std::memset(buffer.data(), 0, buffer.size());
-        responseLength = local_res_nquery(&state, requestName, C_IN, requestType, buffer.data(), buffer.size());
+    QVarLengthArray<unsigned char, ReplyBufferSize> buffer(ReplyBufferSize);
+    auto attemptToSend = [&]() {
+        std::memset(buffer.data(), 0, HFIXEDSZ);        // the header is enough
+        int responseLength = res_nsend(&state, qbuffer.data(), queryLength, buffer.data(), buffer.size());
+        if (responseLength < 0) {
+            // network error of some sort
+            if (errno == ETIMEDOUT)
+                reply->makeTimeoutError();
+            else
+                reply->makeResolverSystemError();
+        }
+        return responseLength;
+    };
+
+    // strictly use UDP, we'll deal with truncated replies ourselves
+    state.options |= RES_IGNTC;
+    int responseLength = attemptToSend();
+    if (responseLength < 0)
+        return;
+
+    // check if we need to use the virtual circuit (TCP)
+    auto header = reinterpret_cast<HEADER *>(buffer.data());
+    if (header->rcode == NOERROR && header->tc) {
+        // yes, increase our buffer size
+        buffer.resize(std::numeric_limits<quint16>::max());
+        header = reinterpret_cast<HEADER *>(buffer.data());
+
+        // remove the EDNS record in the query
+        reinterpret_cast<HEADER *>(qbuffer.data())->arcount = 0;
+        queryLength -= sizeof(Edns0Record);
+
+        // send using the virtual circuit
+        state.options |= RES_USEVC;
+        responseLength = attemptToSend();
         if (Q_UNLIKELY(responseLength > buffer.size())) {
             // Ok, we give up.
-            reply->error = QDnsLookup::ResolverError;
-            reply->errorString.clear(); // We cannot be more specific, alas.
-            return;
+            return reply->setError(QDnsLookup::ResolverError,
+                                   QDnsLookup::tr("Reply was too large"));
         }
     }
-
-    unsigned char *response = buffer.data();
-    // Check the response header. Though res_nquery returns -1 as a
-    // responseLength in case of error, we still can extract the
-    // exact error code from the response.
-    HEADER *header = (HEADER*)response;
-    switch (header->rcode) {
-    case NOERROR:
-        break;
-    case FORMERR:
-        reply->error = QDnsLookup::InvalidRequestError;
-        reply->errorString = tr("Server could not process query");
+    if (responseLength < 0)
         return;
-    case SERVFAIL:
-    case NOTIMP:
-        reply->error = QDnsLookup::ServerFailureError;
-        reply->errorString = tr("Server failure");
-        return;
-    case NXDOMAIN:
-        reply->error = QDnsLookup::NotFoundError;
-        reply->errorString = tr("Non existent domain");
-        return;
-    case REFUSED:
-        reply->error = QDnsLookup::ServerRefusedError;
-        reply->errorString = tr("Server refused to answer");
-        return;
-    default:
-        reply->error = QDnsLookup::InvalidReplyError;
-        reply->errorString = tr("Invalid reply received");
-        return;
-    }
 
     // Check the reply is valid.
-    if (responseLength < int(sizeof(HEADER))) {
-        reply->error = QDnsLookup::InvalidReplyError;
-        reply->errorString = tr("Invalid reply received");
-        return;
-    }
+    if (responseLength < int(sizeof(HEADER)))
+        return reply->makeInvalidReplyError();
 
-    char host[PACKETSZ], answer[PACKETSZ];
-    unsigned char *p = response + sizeof(HEADER);
+    // Parse the reply.
+    if (header->rcode)
+        return reply->makeDnsRcodeError(header->rcode);
+
+    qptrdiff offset = sizeof(HEADER);
+    unsigned char *response = buffer.data();
     int status;
 
+    auto expandHost = [&, cache = Cache{}](qptrdiff offset) mutable {
+        if (uchar n = response[offset]; n & NS_CMPRSFLGS) {
+            // compressed name, see if we already have it cached
+            if (offset + 1 < responseLength) {
+                int id = ((n & ~NS_CMPRSFLGS) << 8) | response[offset + 1];
+                auto it = std::find_if(cache.constBegin(), cache.constEnd(),
+                                  [id](const QDnsCachedName &n) { return n.code == id; });
+                if (it != cache.constEnd()) {
+                    status = 2;
+                    return it->name;
+                }
+            }
+        }
+
+        // uncached, expand it
+        char host[MAXCDNAME + 1];
+        status = dn_expand(response, response + responseLength, response + offset,
+                           host, sizeof(host));
+        if (status >= 0)
+            return cache.emplaceBack(decodeLabel(QLatin1StringView(host)), offset).name;
+
+        // failed
+        reply->makeInvalidReplyError(QDnsLookup::tr("Could not expand domain name"));
+        return QString();
+    };
+
     if (ntohs(header->qdcount) == 1) {
         // Skip the query host, type (2 bytes) and class (2 bytes).
-        status = local_dn_expand(response, response + responseLength, p, host, sizeof(host));
-        if (status < 0) {
-            reply->error = QDnsLookup::InvalidReplyError;
-            reply->errorString = tr("Could not expand domain name");
+        expandHost(offset);
+        if (status < 0)
             return;
-        }
-        if ((p - response) + status + 4 >= responseLength)
+        if (offset + status + 4 >= responseLength)
             header->qdcount = 0xffff;   // invalid reply below
         else
-            p += status + 4;
-    }
-    if (ntohs(header->qdcount) > 1) {
-        reply->error = QDnsLookup::InvalidReplyError;
-        reply->errorString = tr("Invalid reply received");
-        return;
+            offset += status + 4;
     }
+    if (ntohs(header->qdcount) > 1)
+        return reply->makeInvalidReplyError();
 
     // Extract results.
     const int answerCount = ntohs(header->ancount);
     int answerIndex = 0;
-    while ((p < response + responseLength) && (answerIndex < answerCount)) {
-        status = local_dn_expand(response, response + responseLength, p, host, sizeof(host));
-        if (status < 0) {
-            reply->error = QDnsLookup::InvalidReplyError;
-            reply->errorString = tr("Could not expand domain name");
+    while ((offset < responseLength) && (answerIndex < answerCount)) {
+        const QString name = expandHost(offset);
+        if (status < 0)
             return;
-        }
-        const QString name = QUrl::fromAce(host);
 
-        p += status;
-
-        if ((p - response) + 10 > responseLength) {
+        offset += status;
+        if (offset + RRFIXEDSZ > responseLength) {
             // probably just a truncated reply, return what we have
             return;
         }
-        const quint16 type = (p[0] << 8) | p[1];
-        p += 2; // RR type
-        const qint16 rrclass = (p[0] << 8) | p[1];
-        p += 2; // RR class
-        const quint32 ttl = (p[0] << 24) | (p[1] << 16) | (p[2] << 8) | p[3];
-        p += 4;
-        const quint16 size = (p[0] << 8) | p[1];
-        p += 2;
-        if ((p - response) + size > responseLength)
+        const quint16 type = qFromBigEndian<quint16>(response + offset);
+        const qint16 rrclass = qFromBigEndian<quint16>(response + offset + 2);
+        const quint32 ttl = qFromBigEndian<quint32>(response + offset + 4);
+        const quint16 size = qFromBigEndian<quint16>(response + offset + 8);
+        offset += RRFIXEDSZ;
+        if (offset + size > responseLength)
             return;             // truncated
         if (rrclass != C_IN)
             continue;
 
         if (type == QDnsLookup::A) {
-            if (size != 4) {
-                reply->error = QDnsLookup::InvalidReplyError;
-                reply->errorString = tr("Invalid IPv4 address record");
-                return;
-            }
-            const quint32 addr = (p[0] << 24) | (p[1] << 16) | (p[2] << 8) | p[3];
+            if (size != 4)
+                return reply->makeInvalidReplyError(QDnsLookup::tr("Invalid IPv4 address record"));
+            const quint32 addr = qFromBigEndian<quint32>(response + offset);
             QDnsHostAddressRecord record;
             record.d->name = name;
             record.d->timeToLive = ttl;
             record.d->value = QHostAddress(addr);
             reply->hostAddressRecords.append(record);
         } else if (type == QDnsLookup::AAAA) {
-            if (size != 16) {
-                reply->error = QDnsLookup::InvalidReplyError;
-                reply->errorString = tr("Invalid IPv6 address record");
-                return;
-            }
+            if (size != 16)
+                return reply->makeInvalidReplyError(QDnsLookup::tr("Invalid IPv6 address record"));
             QDnsHostAddressRecord record;
             record.d->name = name;
             record.d->timeToLive = ttl;
-            record.d->value = QHostAddress(p);
+            record.d->value = QHostAddress(response + offset);
             reply->hostAddressRecords.append(record);
         } else if (type == QDnsLookup::CNAME) {
-            status = local_dn_expand(response, response + responseLength, p, answer, sizeof(answer));
-            if (status < 0) {
-                reply->error = QDnsLookup::InvalidReplyError;
-                reply->errorString = tr("Invalid canonical name record");
-                return;
-            }
             QDnsDomainNameRecord record;
             record.d->name = name;
             record.d->timeToLive = ttl;
-            record.d->value = QUrl::fromAce(answer);
+            record.d->value = expandHost(offset);
+            if (status < 0)
+                return reply->makeInvalidReplyError(QDnsLookup::tr("Invalid canonical name record"));
             reply->canonicalNameRecords.append(record);
         } else if (type == QDnsLookup::NS) {
-            status = local_dn_expand(response, response + responseLength, p, answer, sizeof(answer));
-            if (status < 0) {
-                reply->error = QDnsLookup::InvalidReplyError;
-                reply->errorString = tr("Invalid name server record");
-                return;
-            }
             QDnsDomainNameRecord record;
             record.d->name = name;
             record.d->timeToLive = ttl;
-            record.d->value = QUrl::fromAce(answer);
+            record.d->value = expandHost(offset);
+            if (status < 0)
+                return reply->makeInvalidReplyError(QDnsLookup::tr("Invalid name server record"));
             reply->nameServerRecords.append(record);
         } else if (type == QDnsLookup::PTR) {
-            status = local_dn_expand(response, response + responseLength, p, answer, sizeof(answer));
-            if (status < 0) {
-                reply->error = QDnsLookup::InvalidReplyError;
-                reply->errorString = tr("Invalid pointer record");
-                return;
-            }
             QDnsDomainNameRecord record;
             record.d->name = name;
             record.d->timeToLive = ttl;
-            record.d->value = QUrl::fromAce(answer);
+            record.d->value = expandHost(offset);
+            if (status < 0)
+                return reply->makeInvalidReplyError(QDnsLookup::tr("Invalid pointer record"));
             reply->pointerRecords.append(record);
         } else if (type == QDnsLookup::MX) {
-            const quint16 preference = (p[0] << 8) | p[1];
-            status = local_dn_expand(response, response + responseLength, p + 2, answer, sizeof(answer));
-            if (status < 0) {
-                reply->error = QDnsLookup::InvalidReplyError;
-                reply->errorString = tr("Invalid mail exchange record");
-                return;
-            }
+            const quint16 preference = qFromBigEndian<quint16>(response + offset);
             QDnsMailExchangeRecord record;
-            record.d->exchange = QUrl::fromAce(answer);
+            record.d->exchange = expandHost(offset + 2);
             record.d->name = name;
             record.d->preference = preference;
             record.d->timeToLive = ttl;
+            if (status < 0)
+                return reply->makeInvalidReplyError(QDnsLookup::tr("Invalid mail exchange record"));
             reply->mailExchangeRecords.append(record);
         } else if (type == QDnsLookup::SRV) {
-            const quint16 priority = (p[0] << 8) | p[1];
-            const quint16 weight = (p[2] << 8) | p[3];
-            const quint16 port = (p[4] << 8) | p[5];
-            status = local_dn_expand(response, response + responseLength, p + 6, answer, sizeof(answer));
-            if (status < 0) {
-                reply->error = QDnsLookup::InvalidReplyError;
-                reply->errorString = tr("Invalid service record");
-                return;
-            }
+            const quint16 priority = qFromBigEndian<quint16>(response + offset);
+            const quint16 weight = qFromBigEndian<quint16>(response + offset + 2);
+            const quint16 port = qFromBigEndian<quint16>(response + offset + 4);
             QDnsServiceRecord record;
             record.d->name = name;
-            record.d->target = QUrl::fromAce(answer);
+            record.d->target = expandHost(offset + 6);
             record.d->port = port;
             record.d->priority = priority;
             record.d->timeToLive = ttl;
             record.d->weight = weight;
+            if (status < 0)
+                return reply->makeInvalidReplyError(QDnsLookup::tr("Invalid service record"));
             reply->serviceRecords.append(record);
         } else if (type == QDnsLookup::TXT) {
-            unsigned char *txt = p;
             QDnsTextRecord record;
             record.d->name = name;
             record.d->timeToLive = ttl;
-            while (txt < p + size) {
-                const unsigned char length = *txt;
+            qptrdiff txt = offset;
+            while (txt < offset + size) {
+                const unsigned char length = response[txt];
                 txt++;
-                if (txt + length > p + size) {
-                    reply->error = QDnsLookup::InvalidReplyError;
-                    reply->errorString = tr("Invalid text record");
-                    return;
-                }
-                record.d->values << QByteArray((char*)txt, length);
+                if (txt + length > offset + size)
+                    return reply->makeInvalidReplyError(QDnsLookup::tr("Invalid text record"));
+                record.d->values << QByteArrayView(response + txt, length).toByteArray();
                 txt += length;
             }
             reply->textRecords.append(record);
         }
-        p += size;
+        offset += size;
         answerIndex++;
     }
 }
 
-#else
-void QDnsLookupRunnable::query(const int requestType, const QByteArray &requestName, const QHostAddress &nameserver, QDnsLookupReply *reply)
-{
-    Q_UNUSED(requestType);
-    Q_UNUSED(requestName);
-    Q_UNUSED(nameserver);
-    reply->error = QDnsLookup::ResolverError;
-    reply->errorString = tr("Resolver library can't be loaded: No runtime library loading support");
-    return;
-}
-
-#endif /* QT_CONFIG(library) */
-
 QT_END_NAMESPACE
diff --git a/src/network/kernel/qdnslookup_win.cpp b/src/network/kernel/qdnslookup_win.cpp
index 796ff9c2..5410edab 100644
--- a/src/network/kernel/qdnslookup_win.cpp
+++ b/src/network/kernel/qdnslookup_win.cpp
@@ -1,70 +1,181 @@
 // Copyright (C) 2012 Jeremy Lainé <jeremy.laine@m4x.org>
+// Copyright (C) 2023 Intel Corporation.
 // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
 
 #include <winsock2.h>
 #include "qdnslookup_p.h"
 
 #include <qurl.h>
+#include <private/qnativesocketengine_p.h>
 #include <private/qsystemerror_p.h>
 
 #include <qt_windows.h>
 #include <windns.h>
 #include <memory.h>
 
+#ifndef DNS_ADDR_MAX_SOCKADDR_LENGTH
+// MinGW headers are missing almost all of this
+typedef struct Qt_DnsAddr {
+  CHAR  MaxSa[32];
+  DWORD DnsAddrUserDword[8];
+} DNS_ADDR, *PDNS_ADDR;
+typedef struct Qt_DnsAddrArray {
+  DWORD    MaxCount;
+  DWORD    AddrCount;
+  DWORD    Tag;
+  WORD     Family;
+  WORD     WordReserved;
+  DWORD    Flags;
+  DWORD    MatchFlag;
+  DWORD    Reserved1;
+  DWORD    Reserved2;
+  DNS_ADDR AddrArray[];
+} DNS_ADDR_ARRAY, *PDNS_ADDR_ARRAY;
+# ifndef DNS_QUERY_RESULTS_VERSION1
+typedef struct Qt_DNS_QUERY_RESULT {
+  ULONG Version;
+  DNS_STATUS QueryStatus;
+  ULONG64 QueryOptions;
+  PDNS_RECORD pQueryRecords;
+  PVOID Reserved;
+} DNS_QUERY_RESULT, *PDNS_QUERY_RESULT;
+typedef VOID WINAPI DNS_QUERY_COMPLETION_ROUTINE(PVOID pQueryContext,PDNS_QUERY_RESULT pQueryResults);
+typedef DNS_QUERY_COMPLETION_ROUTINE *PDNS_QUERY_COMPLETION_ROUTINE;
+# endif
+typedef struct Qt_DNS_QUERY_REQUEST {
+  ULONG                         Version;
+  PCWSTR                        QueryName;
+  WORD                          QueryType;
+  ULONG64                       QueryOptions;
+  PDNS_ADDR_ARRAY               pDnsServerList;
+  ULONG                         InterfaceIndex;
+  PDNS_QUERY_COMPLETION_ROUTINE pQueryCompletionCallback;
+  PVOID                         pQueryContext;
+} DNS_QUERY_REQUEST, *PDNS_QUERY_REQUEST;
+
+typedef void *PDNS_QUERY_CANCEL;    // not really, but we don't need it
+extern "C" {
+DNS_STATUS WINAPI DnsQueryEx(PDNS_QUERY_REQUEST pQueryRequest,
+        PDNS_QUERY_RESULT   pQueryResults,
+        PDNS_QUERY_CANCEL   pCancelHandle);
+}
+#endif
+
 QT_BEGIN_NAMESPACE
 
-void QDnsLookupRunnable::query(const int requestType, const QByteArray &requestName, const QHostAddress &nameserver, QDnsLookupReply *reply)
+void QDnsLookupRunnable::query(QDnsLookupReply *reply)
 {
-    // Perform DNS query.
-    PDNS_RECORD dns_records = 0;
-    const QString requestNameUtf16 = QString::fromUtf8(requestName.data(), requestName.size());
-    IP4_ARRAY srvList;
-    memset(&srvList, 0, sizeof(IP4_ARRAY));
-    if (!nameserver.isNull()) {
-        if (nameserver.protocol() == QAbstractSocket::IPv4Protocol) {
-            // The below code is referenced from: http://support.microsoft.com/kb/831226
-            srvList.AddrCount = 1;
-            srvList.AddrArray[0] = htonl(nameserver.toIPv4Address());
-        } else if (nameserver.protocol() == QAbstractSocket::IPv6Protocol) {
-            // For supoprting IPv6 nameserver addresses, we'll need to switch
-            // from DnsQuey() to DnsQueryEx() as it supports passing an IPv6
-            // address in the nameserver list
-            qWarning("%s", QDnsLookupPrivate::msgNoIpV6NameServerAdresses);
-            reply->error = QDnsLookup::ResolverError;
-            reply->errorString = tr(QDnsLookupPrivate::msgNoIpV6NameServerAdresses);
+    typedef BOOL (WINAPI *DnsQueryExFunc) (PDNS_QUERY_REQUEST, PDNS_QUERY_RESULT, PDNS_QUERY_CANCEL);
+    static DnsQueryExFunc myDnsQueryEx = 
+        (DnsQueryExFunc)::GetProcAddress(::GetModuleHandle(L"Dnsapi"), "DnsQueryEx");
+
+    PDNS_RECORD ptrStart = nullptr;
+
+    if (myDnsQueryEx)
+    {
+        // Perform DNS query.
+        alignas(DNS_ADDR_ARRAY) uchar dnsAddresses[sizeof(DNS_ADDR_ARRAY) + sizeof(DNS_ADDR)];
+        DNS_QUERY_REQUEST request = {};
+        request.Version = 1;
+        request.QueryName = reinterpret_cast<const wchar_t *>(requestName.constData());
+        request.QueryType = requestType;
+        request.QueryOptions = DNS_QUERY_STANDARD | DNS_QUERY_TREAT_AS_FQDN;
+
+        if (!nameserver.isNull()) {
+            memset(dnsAddresses, 0, sizeof(dnsAddresses));
+            request.pDnsServerList = new (dnsAddresses) DNS_ADDR_ARRAY;
+            auto addr = new (request.pDnsServerList->AddrArray) DNS_ADDR[1];
+            auto sa = new (addr[0].MaxSa) sockaddr;
+            request.pDnsServerList->MaxCount = sizeof(dnsAddresses);
+            request.pDnsServerList->AddrCount = 1;
+            // ### setting port 53 seems to cause some systems to fail
+            setSockaddr(sa, nameserver, port == DnsPort ? 0 : port);
+            request.pDnsServerList->Family = sa->sa_family;
+        }
+
+        DNS_QUERY_RESULT results = {};
+        results.Version = 1;
+        const DNS_STATUS status = myDnsQueryEx(&request, &results, nullptr);
+        if (status >= DNS_ERROR_RCODE_FORMAT_ERROR && status <= DNS_ERROR_RCODE_LAST)
+            return reply->makeDnsRcodeError(status - DNS_ERROR_RCODE_FORMAT_ERROR + 1);
+        else if (status == ERROR_TIMEOUT)
+            return reply->makeTimeoutError();
+        else if (status != ERROR_SUCCESS)
+            return reply->makeResolverSystemError(status);
+
+        ptrStart = results.pQueryRecords;
+    }
+    else
+    {
+        // Perform DNS query.
+        PDNS_RECORD dns_records = 0;
+        QByteArray requestNameUTF8 = requestName.toUtf8();
+        const QString requestNameUtf16 = QString::fromUtf8(requestNameUTF8.data(), requestNameUTF8.size());
+        IP4_ARRAY srvList;
+        memset(&srvList, 0, sizeof(IP4_ARRAY));
+        if (!nameserver.isNull()) {
+            if (nameserver.protocol() == QAbstractSocket::IPv4Protocol) {
+                // The below code is referenced from: http://support.microsoft.com/kb/831226
+                srvList.AddrCount = 1;
+                srvList.AddrArray[0] = htonl(nameserver.toIPv4Address());
+            } else if (nameserver.protocol() == QAbstractSocket::IPv6Protocol) {
+                // For supporting IPv6 nameserver addresses, we'll need to switch
+                // from DnsQuey() to DnsQueryEx() as it supports passing an IPv6
+                // address in the nameserver list
+                qWarning("%s", "IPv6 addresses for nameservers are currently not supported");
+                reply->error = QDnsLookup::ResolverError;
+                reply->errorString = tr("IPv6 addresses for nameservers are currently not supported");
+                return;
+            }
+        }
+        const DNS_STATUS status = DnsQuery_W(reinterpret_cast<const wchar_t*>(requestNameUtf16.utf16()), requestType, DNS_QUERY_STANDARD, &srvList, &dns_records, NULL);
+        switch (status) {
+        case ERROR_SUCCESS:
+            break;
+        case DNS_ERROR_RCODE_FORMAT_ERROR:
+            reply->error = QDnsLookup::InvalidRequestError;
+            reply->errorString = tr("Server could not process query");
+            return;
+        case DNS_ERROR_RCODE_SERVER_FAILURE:
+        case DNS_ERROR_RCODE_NOT_IMPLEMENTED:
+            reply->error = QDnsLookup::ServerFailureError;
+            reply->errorString = tr("Server failure");
+            return;
+        case DNS_ERROR_RCODE_NAME_ERROR:
+            reply->error = QDnsLookup::NotFoundError;
+            reply->errorString = tr("Non existent domain");
+            return;
+        case DNS_ERROR_RCODE_REFUSED:
+            reply->error = QDnsLookup::ServerRefusedError;
+            reply->errorString = tr("Server refused to answer");
+            return;
+        default:
+            reply->error = QDnsLookup::InvalidReplyError;
+            reply->errorString = QSystemError(status, QSystemError::NativeError).toString();
             return;
         }
-    }
-    const DNS_STATUS status = DnsQuery_W(reinterpret_cast<const wchar_t*>(requestNameUtf16.utf16()), requestType, DNS_QUERY_STANDARD, &srvList, &dns_records, NULL);
-    switch (status) {
-    case ERROR_SUCCESS:
-        break;
-    case DNS_ERROR_RCODE_FORMAT_ERROR:
-        reply->error = QDnsLookup::InvalidRequestError;
-        reply->errorString = tr("Server could not process query");
-        return;
-    case DNS_ERROR_RCODE_SERVER_FAILURE:
-    case DNS_ERROR_RCODE_NOT_IMPLEMENTED:
-        reply->error = QDnsLookup::ServerFailureError;
-        reply->errorString = tr("Server failure");
-        return;
-    case DNS_ERROR_RCODE_NAME_ERROR:
-        reply->error = QDnsLookup::NotFoundError;
-        reply->errorString = tr("Non existent domain");
-        return;
-    case DNS_ERROR_RCODE_REFUSED:
-        reply->error = QDnsLookup::ServerRefusedError;
-        reply->errorString = tr("Server refused to answer");
-        return;
-    default:
-        reply->error = QDnsLookup::InvalidReplyError;
-        reply->errorString = QSystemError(status, QSystemError::NativeError).toString();
-        return;
+
+        ptrStart = dns_records;
     }
 
+    if (!ptrStart)
+        return;
+
+    QStringView lastEncodedName;
+    QString cachedDecodedName;
+    auto extractAndCacheHost = [&](QStringView name) -> const QString & {
+        lastEncodedName = name;
+        cachedDecodedName = decodeLabel(name);
+        return cachedDecodedName;
+    };
+    auto extractMaybeCachedHost = [&](QStringView name) -> const QString & {
+        return lastEncodedName == name ? cachedDecodedName : extractAndCacheHost(name);
+    };
+    
     // Extract results.
-    for (PDNS_RECORD ptr = dns_records; ptr != NULL; ptr = ptr->pNext) {
-        const QString name = QUrl::fromAce( QString::fromWCharArray( ptr->pName ).toLatin1() );
+    for (PDNS_RECORD ptr = ptrStart; ptr != NULL; ptr = ptr->pNext) {
+        // warning: always assign name to the record before calling extractXxxHost() again
+        const QString &name = extractMaybeCachedHost(ptr->pName);
         if (ptr->wType == QDnsLookup::A) {
             QDnsHostAddressRecord record;
             record.d->name = name;
@@ -84,12 +195,12 @@ void QDnsLookupRunnable::query(const int requestType, const QByteArray &requestN
             QDnsDomainNameRecord record;
             record.d->name = name;
             record.d->timeToLive = ptr->dwTtl;
-            record.d->value = QUrl::fromAce(QString::fromWCharArray(ptr->Data.Cname.pNameHost).toLatin1());
+            record.d->value = extractAndCacheHost(ptr->Data.Cname.pNameHost);
             reply->canonicalNameRecords.append(record);
         } else if (ptr->wType == QDnsLookup::MX) {
             QDnsMailExchangeRecord record;
             record.d->name = name;
-            record.d->exchange = QUrl::fromAce(QString::fromWCharArray(ptr->Data.Mx.pNameExchange).toLatin1());
+            record.d->exchange = decodeLabel(QStringView(ptr->Data.Mx.pNameExchange));
             record.d->preference = ptr->Data.Mx.wPreference;
             record.d->timeToLive = ptr->dwTtl;
             reply->mailExchangeRecords.append(record);
@@ -97,18 +208,18 @@ void QDnsLookupRunnable::query(const int requestType, const QByteArray &requestN
             QDnsDomainNameRecord record;
             record.d->name = name;
             record.d->timeToLive = ptr->dwTtl;
-            record.d->value = QUrl::fromAce(QString::fromWCharArray(ptr->Data.Ns.pNameHost).toLatin1());
+            record.d->value = decodeLabel(QStringView(ptr->Data.Ns.pNameHost));
             reply->nameServerRecords.append(record);
         } else if (ptr->wType == QDnsLookup::PTR) {
             QDnsDomainNameRecord record;
             record.d->name = name;
             record.d->timeToLive = ptr->dwTtl;
-            record.d->value = QUrl::fromAce(QString::fromWCharArray(ptr->Data.Ptr.pNameHost).toLatin1());
+            record.d->value = decodeLabel(QStringView(ptr->Data.Ptr.pNameHost));
             reply->pointerRecords.append(record);
         } else if (ptr->wType == QDnsLookup::SRV) {
             QDnsServiceRecord record;
             record.d->name = name;
-            record.d->target = QUrl::fromAce(QString::fromWCharArray(ptr->Data.Srv.pNameTarget).toLatin1());
+            record.d->target = decodeLabel(QStringView(ptr->Data.Srv.pNameTarget));
             record.d->port = ptr->Data.Srv.wPort;
             record.d->priority = ptr->Data.Srv.wPriority;
             record.d->timeToLive = ptr->dwTtl;
@@ -119,13 +230,13 @@ void QDnsLookupRunnable::query(const int requestType, const QByteArray &requestN
             record.d->name = name;
             record.d->timeToLive = ptr->dwTtl;
             for (unsigned int i = 0; i < ptr->Data.Txt.dwStringCount; ++i) {
-                record.d->values << QString::fromWCharArray((ptr->Data.Txt.pStringArray[i])).toLatin1();;
+                record.d->values << QStringView(ptr->Data.Txt.pStringArray[i]).toLatin1();
             }
             reply->textRecords.append(record);
         }
     }
 
-    DnsRecordListFree(dns_records, DnsFreeRecordList);
+    DnsRecordListFree(ptrStart, DnsFreeRecordList);
 }
 
 QT_END_NAMESPACE
diff --git a/src/network/kernel/qhostaddress.cpp b/src/network/kernel/qhostaddress.cpp
index 827b622a..8887c4f2 100644
--- a/src/network/kernel/qhostaddress.cpp
+++ b/src/network/kernel/qhostaddress.cpp
@@ -164,8 +164,12 @@ AddressClassification QHostAddressPrivate::classify() const
                 return BroadcastAddress;
             return UnknownAddress;
         }
+        if (((a & 0xff000000U) == 0x0a000000U)      // 10.0.0.0/8
+            || ((a & 0xfff00000U) == 0xac100000U)   // 172.16.0.0/12
+            || ((a & 0xffff0000U) == 0xc0a80000U))  // 192.168.0.0/16
+            return PrivateNetworkAddress;
 
-        // Not testing for PrivateNetworkAddress and TestNetworkAddress
+        // Not testing for TestNetworkAddress
         // since we don't need them yet.
         return GlobalAddress;
     }
@@ -673,7 +677,7 @@ QHostAddress::NetworkLayerProtocol QHostAddress::protocol() const
     \l{QAbstractSocket::}{IPv6Protocol}.
     If the protocol is
     \l{QAbstractSocket::}{IPv4Protocol},
-    then the address is returned an an IPv4 mapped IPv6 address. (RFC4291)
+    then the address is returned as an IPv4 mapped IPv6 address. (RFC4291)
 
     \sa toString()
 */
@@ -1113,7 +1117,7 @@ bool QHostAddress::isLoopback() const
     considered as global in new applications. This function returns true for
     site-local addresses too.
 
-    \sa isLoopback(), isSiteLocal(), isUniqueLocalUnicast()
+    \sa isLoopback(), isSiteLocal(), isUniqueLocalUnicast(), isPrivateUse()
 */
 bool QHostAddress::isGlobal() const
 {
@@ -1131,7 +1135,7 @@ bool QHostAddress::isGlobal() const
     \l{https://www.iana.org/assignments/ipv6-address-space/ipv6-address-space.xhtml}{IANA
     IPv6 Address Space} registry for more information.
 
-    \sa isLoopback(), isGlobal(), isMulticast(), isSiteLocal(), isUniqueLocalUnicast()
+    \sa isLoopback(), isGlobal(), isMulticast(), isSiteLocal(), isUniqueLocalUnicast(), isPrivateUse()
 */
 bool QHostAddress::isLinkLocal() const
 {
@@ -1154,7 +1158,7 @@ bool QHostAddress::isLinkLocal() const
     isGlobal() also returns true). Site-local addresses were replaced by Unique
     Local Addresses (ULA).
 
-    \sa isLoopback(), isGlobal(), isMulticast(), isLinkLocal(), isUniqueLocalUnicast()
+    \sa isLoopback(), isGlobal(), isMulticast(), isLinkLocal(), isUniqueLocalUnicast(), isPrivateUse()
 */
 bool QHostAddress::isSiteLocal() const
 {
@@ -1175,7 +1179,7 @@ bool QHostAddress::isSiteLocal() const
     4193 says that, in practice, "applications may treat these addresses like
     global scoped addresses." Only routers need care about the distinction.
 
-    \sa isLoopback(), isGlobal(), isMulticast(), isLinkLocal(), isUniqueLocalUnicast()
+    \sa isLoopback(), isGlobal(), isMulticast(), isLinkLocal(), isUniqueLocalUnicast(), isPrivateUse()
 */
 bool QHostAddress::isUniqueLocalUnicast() const
 {
@@ -1188,7 +1192,7 @@ bool QHostAddress::isUniqueLocalUnicast() const
     Returns \c true if the address is an IPv4 or IPv6 multicast address, \c
     false otherwise.
 
-    \sa isLoopback(), isGlobal(), isLinkLocal(), isSiteLocal(), isUniqueLocalUnicast()
+    \sa isLoopback(), isGlobal(), isLinkLocal(), isSiteLocal(), isUniqueLocalUnicast(), isPrivateUse()
 */
 bool QHostAddress::isMulticast() const
 {
@@ -1205,13 +1209,27 @@ bool QHostAddress::isMulticast() const
     broadcast address. For that, please use \l QNetworkInterface to obtain the
     broadcast addresses of the local machine.
 
-    \sa isLoopback(), isGlobal(), isMulticast(), isLinkLocal(), isUniqueLocalUnicast()
+    \sa isLoopback(), isGlobal(), isMulticast(), isLinkLocal(), isUniqueLocalUnicast(), isPrivateUse()
 */
 bool QHostAddress::isBroadcast() const
 {
     return d->classify() == BroadcastAddress;
 }
 
+/*!
+    \since 6.6
+
+    Returns \c true if the address is an IPv6 unique local unicast address or
+    IPv4 address reserved for local networks by \l {RFC 1918}, \c false otherwise.
+
+    \sa isLoopback(), isGlobal(), isMulticast(), isLinkLocal(), isUniqueLocalUnicast(), isBroadcast()
+*/
+bool QHostAddress::isPrivateUse() const
+{
+    const AddressClassification classification = d->classify();
+    return (classification == PrivateNetworkAddress) || (classification == UniqueLocalAddress);
+}
+
 #ifndef QT_NO_DEBUG_STREAM
 QDebug operator<<(QDebug d, const QHostAddress &address)
 {
diff --git a/src/network/kernel/qhostaddress.h b/src/network/kernel/qhostaddress.h
index e71f954a..6aa045c9 100644
--- a/src/network/kernel/qhostaddress.h
+++ b/src/network/kernel/qhostaddress.h
@@ -127,6 +127,7 @@ public:
     bool isUniqueLocalUnicast() const;
     bool isMulticast() const;
     bool isBroadcast() const;
+    bool isPrivateUse() const;
 
     static QPair<QHostAddress, int> parseSubnet(const QString &subnet);
 
diff --git a/src/network/kernel/qhostinfo.h b/src/network/kernel/qhostinfo.h
index 47db075b..600e97d8 100644
--- a/src/network/kernel/qhostinfo.h
+++ b/src/network/kernel/qhostinfo.h
@@ -56,61 +56,30 @@ public:
     static QString localDomainName();
 
 #ifdef Q_QDOC
-    template<typename Functor>
-    static int lookupHost(const QString &name, Functor functor);
     template<typename Functor>
     static int lookupHost(const QString &name, const QObject *context, Functor functor);
 #else
-    // lookupHost to a QObject slot
-    template <typename Func>
+    // lookupHost to a callable (with context)
+    template <typename Functor>
     static inline int lookupHost(const QString &name,
-                                 const typename QtPrivate::FunctionPointer<Func>::Object *receiver,
-                                 Func slot)
+                                 const typename QtPrivate::ContextTypeForFunctor<Functor>::ContextType *receiver,
+                                 Functor &&func)
     {
-        typedef QtPrivate::FunctionPointer<Func> SlotType;
-
-        typedef QtPrivate::FunctionPointer<void (*)(QHostInfo)> SignalType;
-        static_assert(int(SignalType::ArgumentCount) >= int(SlotType::ArgumentCount),
-                          "The slot requires more arguments than the signal provides.");
-        static_assert((QtPrivate::CheckCompatibleArguments<typename SignalType::Arguments,
-                           typename SlotType::Arguments>::value),
-                          "Signal and slot arguments are not compatible.");
-        static_assert((QtPrivate::AreArgumentsCompatible<typename SlotType::ReturnType,
-                           typename SignalType::ReturnType>::value),
-                          "Return type of the slot is not compatible "
-                          "with the return type of the signal.");
-
-        auto slotObj = new QtPrivate::QSlotObject<Func, typename SlotType::Arguments, void>(slot);
-        return lookupHostImpl(name, receiver, slotObj, nullptr);
-    }
-
-    // lookupHost to a callable (without context)
-    template <typename Func>
-    static inline typename std::enable_if<!QtPrivate::FunctionPointer<Func>::IsPointerToMemberFunction &&
-                                          !std::is_same<const char *, Func>::value, int>::type
-        lookupHost(const QString &name, Func slot)
-    {
-        return lookupHost(name, nullptr, std::move(slot));
-    }
-
-    // lookupHost to a functor or function pointer (with context)
-    template <typename Func1>
-    static inline typename std::enable_if<!QtPrivate::FunctionPointer<Func1>::IsPointerToMemberFunction &&
-                                          !std::is_same<const char*, Func1>::value, int>::type
-        lookupHost(const QString &name, QObject *context, Func1 slot)
-    {
-        typedef QtPrivate::FunctionPointer<Func1> SlotType;
-
-        static_assert(int(SlotType::ArgumentCount) <= 1,
-                          "The slot must not require more than one argument");
-
-        auto slotObj = new QtPrivate::QFunctorSlotObject<Func1, 1,
-                                                         typename QtPrivate::List<QHostInfo>,
-                                                         void>(std::move(slot));
-        return lookupHostImpl(name, context, slotObj, nullptr);
+        using Prototype = void(*)(QHostInfo);
+        QtPrivate::AssertCompatibleFunctions<Prototype, Functor>();
+        return lookupHostImpl(name, receiver,
+                              QtPrivate::makeCallableObject<Prototype>(std::forward<Functor>(func)),
+                              nullptr);
     }
 #endif // Q_QDOC
 
+    // lookupHost to a callable (without context)
+    template <typename Functor>
+    static inline int lookupHost(const QString &name, Functor &&slot)
+    {
+        return lookupHost(name, nullptr, std::forward<Functor>(slot));
+    }
+
 private:
     QHostInfoPrivate *d_ptr;
     Q_DECLARE_PRIVATE(QHostInfo)
diff --git a/src/network/kernel/qhostinfo_p.h b/src/network/kernel/qhostinfo_p.h
index 0815b1e4..70cacc6b 100644
--- a/src/network/kernel/qhostinfo_p.h
+++ b/src/network/kernel/qhostinfo_p.h
@@ -34,8 +34,6 @@
 #include <QElapsedTimer>
 #include <QCache>
 
-#include <QSharedPointer>
-
 #include <atomic>
 
 QT_BEGIN_NAMESPACE
diff --git a/src/network/kernel/qhostinfo_unix.cpp b/src/network/kernel/qhostinfo_unix.cpp
index 12d8c04d..42194fb8 100644
--- a/src/network/kernel/qhostinfo_unix.cpp
+++ b/src/network/kernel/qhostinfo_unix.cpp
@@ -3,140 +3,75 @@
 
 //#define QHOSTINFO_DEBUG
 
-#include "qplatformdefs.h"
-
 #include "qhostinfo_p.h"
-#include "private/qnativesocketengine_p.h"
-#include "qiodevice.h"
-#include <qbytearray.h>
-#if QT_CONFIG(library)
-#include <qlibrary.h>
-#endif
-#include <qbasicatomic.h>
-#include <qurl.h>
-#include <qfile.h>
-#include <private/qnet_unix_p.h>
 
-#include "QtCore/qapplicationstatic.h"
+#include <qbytearray.h>
+#include <qfile.h>
+#include <qplatformdefs.h>
+#include <qurl.h>
 
 #include <sys/types.h>
 #include <netdb.h>
-#include <arpa/inet.h>
-#if defined(Q_OS_VXWORKS)
-#  include <hostLib.h>
-#else
-#  include <resolv.h>
-#endif
+#include <netinet/in.h>
+#include <resolv.h>
 
-#if defined(__GNU_LIBRARY__) && !defined(__UCLIBC__)
-#  include <gnu/lib-names.h>
-#endif
-
-#if defined(Q_OS_FREEBSD) || QT_CONFIG(dlopen)
-#  include <dlfcn.h>
+#ifndef _PATH_RESCONF
+#  define _PATH_RESCONF "/etc/resolv.conf"
 #endif
 
 QT_BEGIN_NAMESPACE
 
 using namespace Qt::StringLiterals;
 
-enum LibResolvFeature {
-    NeedResInit,
-    NeedResNInit
-};
-
-typedef struct __res_state *res_state_ptr;
-
-typedef int (*res_init_proto)(void);
-static res_init_proto local_res_init = nullptr;
-typedef int (*res_ninit_proto)(res_state_ptr);
-static res_ninit_proto local_res_ninit = nullptr;
-typedef void (*res_nclose_proto)(res_state_ptr);
-static res_nclose_proto local_res_nclose = nullptr;
-static res_state_ptr local_res = nullptr;
-
-#if QT_CONFIG(library) && !defined(Q_OS_QNX)
-namespace {
-struct LibResolv
+static void maybeRefreshResolver()
 {
-    enum {
-#ifdef RES_NORELOAD
-        // If RES_NORELOAD is defined, then the libc is capable of watching
-        // /etc/resolv.conf for changes and reloading as necessary. So accept
-        // whatever is configured.
-        ReinitNecessary = false
-#else
-        ReinitNecessary = true
+#if defined(RES_NORELOAD)
+    // If RES_NORELOAD is defined, then the libc is capable of watching
+    // /etc/resolv.conf for changes and reloading as necessary. So accept
+    // whatever is configured.
+    return;
+#elif defined(Q_OS_DARWIN)
+    // Apple's libsystem_info.dylib:getaddrinfo() uses the
+    // libsystem_dnssd.dylib to resolve hostnames. Using res_init() has no
+    // effect on it and is thread-unsafe.
+    return;
+#elif defined(Q_OS_FREEBSD)
+    // FreeBSD automatically refreshes:
+    // https://github.com/freebsd/freebsd-src/blob/b3fe5d932264445cbf9a1c4eab01afb6179b499b/lib/libc/resolv/res_state.c#L69
+    return;
+#elif defined(Q_OS_OPENBSD)
+    // OpenBSD automatically refreshes:
+    // https://github.com/ligurio/openbsd-src/blob/b1ce0da17da254cc15b8aff25b3d55d3c7a82cec/lib/libc/asr/asr.c#L367
+    return;
+#elif defined(Q_OS_QNX)
+    // res_init() is not thread-safe; executing it leads to state corruption.
+    // Whether it reloads resolv.conf on its own is unknown.
+    return;
 #endif
-    };
 
-    QLibrary lib;
-    LibResolv();
-    ~LibResolv() { lib.unload(); }
-};
-}
+#if QT_CONFIG(libresolv)
+    // OSes known or thought to reach here: AIX, NetBSD, Solaris,
+    // Linux with MUSL (though res_init() does nothing and is unnecessary)
 
-static QFunctionPointer resolveSymbol(QLibrary &lib, const char *sym)
-{
-    if (lib.isLoaded())
-        return lib.resolve(sym);
-
-#if defined(RTLD_DEFAULT) && (defined(Q_OS_FREEBSD) || QT_CONFIG(dlopen))
-    return reinterpret_cast<QFunctionPointer>(dlsym(RTLD_DEFAULT, sym));
-#else
-    return nullptr;
-#endif
-}
-
-LibResolv::LibResolv()
-{
-#ifdef LIBRESOLV_SO
-    lib.setFileName(QStringLiteral(LIBRESOLV_SO));
-    if (!lib.load())
-#endif
-    {
-        lib.setFileName("resolv"_L1);
-        lib.load();
-    }
-
-    // res_ninit is required for localDomainName()
-    local_res_ninit = res_ninit_proto(resolveSymbol(lib, "__res_ninit"));
-    if (!local_res_ninit)
-        local_res_ninit = res_ninit_proto(resolveSymbol(lib, "res_ninit"));
-    if (local_res_ninit) {
-        // we must now find res_nclose
-        local_res_nclose = res_nclose_proto(resolveSymbol(lib, "res_nclose"));
-        if (!local_res_nclose)
-            local_res_nclose = res_nclose_proto(resolveSymbol(lib, "__res_nclose"));
-        if (!local_res_nclose)
-            local_res_ninit = nullptr;
-    }
-
-    if (ReinitNecessary || !local_res_ninit) {
-        local_res_init = res_init_proto(resolveSymbol(lib, "__res_init"));
-        if (!local_res_init)
-            local_res_init = res_init_proto(resolveSymbol(lib, "res_init"));
-
-        if (local_res_init && !local_res_ninit) {
-            // if we can't get a thread-safe context, we have to use the global _res state
-            local_res = res_state_ptr(resolveSymbol(lib, "_res"));
+    Q_CONSTINIT static QT_STATBUF lastStat = {};
+    Q_CONSTINIT static QBasicMutex mutex = {};
+    if (QT_STATBUF st; QT_STAT(_PATH_RESCONF, &st) == 0) {
+        QMutexLocker locker(&mutex);
+        bool refresh = false;
+        if ((_res.options & RES_INIT) == 0)
+            refresh = true;
+        else if (lastStat.st_ctime != st.st_ctime)
+            refresh = true;     // file was updated
+        else if (lastStat.st_dev != st.st_dev || lastStat.st_ino != st.st_ino)
+            refresh = true;     // file was replaced
+        if (refresh) {
+            lastStat = st;
+            res_init();
         }
     }
+#endif
 }
 
-Q_APPLICATION_STATIC(LibResolv, libResolv)
-
-static void resolveLibrary(LibResolvFeature f)
-{
-    if (LibResolv::ReinitNecessary || f == NeedResNInit)
-        libResolv();
-}
-#else // QT_CONFIG(library) || Q_OS_QNX
-static void resolveLibrary(LibResolvFeature)
-{
-}
-#endif // QT_CONFIG(library) || Q_OS_QNX
-
 QHostInfo QHostInfoAgent::fromName(const QString &hostName)
 {
     QHostInfo results;
@@ -146,12 +81,7 @@ QHostInfo QHostInfoAgent::fromName(const QString &hostName)
            hostName.toLatin1().constData());
 #endif
 
-    // Load res_init on demand.
-    resolveLibrary(NeedResInit);
-
-    // If res_init is available, poll it.
-    if (local_res_init)
-        local_res_init();
+    maybeRefreshResolver();
 
     QHostAddress address;
     if (address.setAddress(hostName))
@@ -162,40 +92,30 @@ QHostInfo QHostInfoAgent::fromName(const QString &hostName)
 
 QString QHostInfo::localDomainName()
 {
-#if !defined(Q_OS_VXWORKS) && !defined(Q_OS_ANDROID)
-    resolveLibrary(NeedResNInit);
-    if (local_res_ninit) {
+#if QT_CONFIG(libresolv)
+    auto domainNameFromRes = [](res_state r) {
+        QString domainName;
+        if (r->defdname[0])
+            domainName = QUrl::fromAce(r->defdname);
+        if (domainName.isEmpty())
+            domainName = QUrl::fromAce(r->dnsrch[0]);
+        return domainName;
+    };
+    std::remove_pointer_t<res_state> state = {};
+    if (res_ninit(&state) == 0) {
         // using thread-safe version
-        res_state_ptr state = res_state_ptr(malloc(sizeof(*state)));
-        Q_CHECK_PTR(state);
-        memset(state, 0, sizeof(*state));
-        local_res_ninit(state);
-        QString domainName = QUrl::fromAce(state->defdname);
-        if (domainName.isEmpty())
-            domainName = QUrl::fromAce(state->dnsrch[0]);
-        local_res_nclose(state);
-        free(state);
-
-        return domainName;
+        auto guard = qScopeGuard([&] { res_nclose(&state); });
+        return domainNameFromRes(&state);
     }
 
-    if (local_res_init && local_res) {
-        // using thread-unsafe version
+    // using thread-unsafe version
+    maybeRefreshResolver();
+    return domainNameFromRes(&_res);
+#endif  // !QT_CONFIG(libresolv)
 
-        local_res_init();
-        QString domainName = QUrl::fromAce(local_res->defdname);
-        if (domainName.isEmpty())
-            domainName = QUrl::fromAce(local_res->dnsrch[0]);
-        return domainName;
-    }
-#endif
     // nothing worked, try doing it by ourselves:
     QFile resolvconf;
-#if defined(_PATH_RESCONF)
-    resolvconf.setFileName(QFile::decodeName(_PATH_RESCONF));
-#else
-    resolvconf.setFileName("/etc/resolv.conf"_L1);
-#endif
+    resolvconf.setFileName(_PATH_RESCONF ""_L1);
     if (!resolvconf.open(QIODevice::ReadOnly))
         return QString();       // failure
 
diff --git a/src/network/kernel/qnetworkproxy.cpp b/src/network/kernel/qnetworkproxy.cpp
index a00b0031..62bba24b 100644
--- a/src/network/kernel/qnetworkproxy.cpp
+++ b/src/network/kernel/qnetworkproxy.cpp
@@ -1466,7 +1466,7 @@ void QNetworkProxyFactory::setApplicationProxyFactory(QNetworkProxyFactory *fact
     Internet Explorer's settings and use them.
 
     On \macos, this function will obtain the proxy settings using the
-    SystemConfiguration framework from Apple. It will apply the FTP,
+    CFNetwork framework from Apple. It will apply the FTP,
     HTTP and HTTPS proxy configurations for queries that contain the
     protocol tag "ftp", "http" and "https", respectively. If the SOCKS
     proxy is enabled in that configuration, this function will use the
@@ -1489,9 +1489,6 @@ void QNetworkProxyFactory::setApplicationProxyFactory(QNetworkProxyFactory *fact
     listed here.
 
     \list
-    \li On \macos, this function will ignore the Proxy Auto Configuration
-    settings, since it cannot execute the associated ECMAScript code.
-
     \li On Windows platforms, this function may take several seconds to
     execute depending on the configuration of the user's system.
     \endlist
diff --git a/src/network/kernel/qnetworkproxy_mac.cpp b/src/network/kernel/qnetworkproxy_darwin.cpp
similarity index 72%
rename from src/network/kernel/qnetworkproxy_mac.cpp
rename to src/network/kernel/qnetworkproxy_darwin.cpp
index aa691090..431228c9 100644
--- a/src/network/kernel/qnetworkproxy_mac.cpp
+++ b/src/network/kernel/qnetworkproxy_darwin.cpp
@@ -14,6 +14,7 @@
 #include <QtCore/QUrl>
 #include <QtCore/qendian.h>
 #include <QtCore/qstringlist.h>
+#include <QtCore/qsystemdetection.h>
 #include "private/qcore_mac_p.h"
 
 /*
@@ -32,11 +33,11 @@
  *   \li Bypass list (by default: *.local, 169.254/16)
  * \endlist
  *
- * The matching configuration can be obtained by calling SCDynamicStoreCopyProxies
- * (from <SystemConfiguration/SCDynamicStoreCopySpecific.h>). See
+ * The matching configuration can be obtained by calling CFNetworkCopySystemProxySettings()
+ * (from <CFNetwork/CFProxySupport.h>). See
  * Apple's documentation:
  *
- * http://developer.apple.com/DOCUMENTATION/Networking/Reference/SysConfig/SCDynamicStoreCopySpecific/CompositePage.html#//apple_ref/c/func/SCDynamicStoreCopyProxies
+ * https://developer.apple.com/documentation/cfnetwork/1426754-cfnetworkcopysystemproxysettings?language=objc
  *
  */
 
@@ -46,13 +47,19 @@ using namespace Qt::StringLiterals;
 
 static bool isHostExcluded(CFDictionaryRef dict, const QString &host)
 {
+    Q_ASSERT(dict);
+
     if (host.isEmpty())
         return true;
 
+#ifndef Q_OS_IOS
+    // On iOS all those keys are not available, and worse so - entries
+    // for HTTPS are not in the dictionary, but instead in some nested dictionary
+    // with undocumented keys/object types.
     bool isSimple = !host.contains(u'.') && !host.contains(u':');
     CFNumberRef excludeSimples;
     if (isSimple &&
-        (excludeSimples = (CFNumberRef)CFDictionaryGetValue(dict, kSCPropNetProxiesExcludeSimpleHostnames))) {
+        (excludeSimples = (CFNumberRef)CFDictionaryGetValue(dict, kCFNetworkProxiesExcludeSimpleHostnames))) {
         int enabled;
         if (CFNumberGetValue(excludeSimples, kCFNumberIntType, &enabled) && enabled)
             return true;
@@ -63,7 +70,7 @@ static bool isHostExcluded(CFDictionaryRef dict, const QString &host)
 
     // not a simple host name
     // does it match the list of exclusions?
-    CFArrayRef exclusionList = (CFArrayRef)CFDictionaryGetValue(dict, kSCPropNetProxiesExceptionsList);
+    CFArrayRef exclusionList = (CFArrayRef)CFDictionaryGetValue(dict, kCFNetworkProxiesExceptionsList);
     if (!exclusionList)
         return false;
 
@@ -81,7 +88,9 @@ static bool isHostExcluded(CFDictionaryRef dict, const QString &host)
                 return true;
         }
     }
-
+#else
+    Q_UNUSED(dict);
+#endif // Q_OS_IOS
     // host was not excluded
     return false;
 }
@@ -112,7 +121,6 @@ static QNetworkProxy proxyFromDictionary(CFDictionaryRef dict, QNetworkProxy::Pr
     return QNetworkProxy();
 }
 
-
 static QNetworkProxy proxyFromDictionary(CFDictionaryRef dict)
 {
     QNetworkProxy::ProxyType proxyType = QNetworkProxy::DefaultProxy;
@@ -178,16 +186,43 @@ QCFType<CFStringRef> stringByAddingPercentEscapes(CFStringRef originalPath)
     return escaped.toCFString();
 }
 
-} // anon namespace
+#ifdef Q_OS_IOS
+QList<QNetworkProxy> proxiesForQueryUrl(CFDictionaryRef dict, const QUrl &url)
+{
+    Q_ASSERT(dict);
+
+    const QCFType<CFURLRef> cfUrl = url.toCFURL();
+    const QCFType<CFArrayRef> proxies = CFNetworkCopyProxiesForURL(cfUrl, dict);
+    Q_ASSERT(proxies);
+
+    QList<QNetworkProxy> result;
+    const auto count = CFArrayGetCount(proxies);
+    if (!count) // Could be no proper proxy or host excluded.
+        return result;
+
+    for (CFIndex i = 0; i < count; ++i) {
+        const void *obj = CFArrayGetValueAtIndex(proxies, i);
+        if (CFGetTypeID(obj) != CFDictionaryGetTypeID())
+            continue;
+        const QNetworkProxy proxy = proxyFromDictionary(static_cast<CFDictionaryRef>(obj));
+        if (proxy.type() == QNetworkProxy::NoProxy || proxy.type() == QNetworkProxy::DefaultProxy)
+            continue;
+        result << proxy;
+    }
+
+    return result;
+}
+#endif // Q_OS_IOS
+} // unnamed namespace.
 
 QList<QNetworkProxy> macQueryInternal(const QNetworkProxyQuery &query)
 {
     QList<QNetworkProxy> result;
 
     // obtain a dictionary to the proxy settings:
-    const QCFType<CFDictionaryRef> dict = SCDynamicStoreCopyProxies(NULL);
+    const QCFType<CFDictionaryRef> dict = CFNetworkCopySystemProxySettings();
     if (!dict) {
-        qWarning("QNetworkProxyFactory::systemProxyForQuery: SCDynamicStoreCopyProxies returned NULL");
+        qWarning("QNetworkProxyFactory::systemProxyForQuery: CFNetworkCopySystemProxySettings returned nullptr");
         return result;          // failed
     }
 
@@ -196,13 +231,13 @@ QList<QNetworkProxy> macQueryInternal(const QNetworkProxyQuery &query)
 
     // is there a PAC enabled? If so, use it first.
     CFNumberRef pacEnabled;
-    if ((pacEnabled = (CFNumberRef)CFDictionaryGetValue(dict, kSCPropNetProxiesProxyAutoConfigEnable))) {
+    if ((pacEnabled = (CFNumberRef)CFDictionaryGetValue(dict, kCFNetworkProxiesProxyAutoConfigEnable))) {
         int enabled;
         if (CFNumberGetValue(pacEnabled, kCFNumberIntType, &enabled) && enabled) {
             // PAC is enabled
             // kSCPropNetProxiesProxyAutoConfigURLString returns the URL string
             // as entered in the system proxy configuration dialog
-            CFStringRef pacLocationSetting = (CFStringRef)CFDictionaryGetValue(dict, kSCPropNetProxiesProxyAutoConfigURLString);
+            CFStringRef pacLocationSetting = (CFStringRef)CFDictionaryGetValue(dict, kCFNetworkProxiesProxyAutoConfigURLString);
             auto cfPacLocation = stringByAddingPercentEscapes(pacLocationSetting);
             QCFType<CFDataRef> pacData;
             QCFType<CFURLRef> pacUrl = CFURLCreateWithString(kCFAllocatorDefault, cfPacLocation, NULL);
@@ -252,53 +287,77 @@ QList<QNetworkProxy> macQueryInternal(const QNetworkProxyQuery &query)
         }
     }
 
-    // no PAC, decide which proxy we're looking for based on the query
-    bool isHttps = false;
-    QString protocol = query.protocolTag().toLower();
-
+    // No PAC, decide which proxy we're looking for based on the query
     // try the protocol-specific proxy
+    QString protocol = query.protocolTag().toLower();
     QNetworkProxy protocolSpecificProxy;
+    if (protocol == "http"_L1) {
+        protocolSpecificProxy =
+            proxyFromDictionary(dict, QNetworkProxy::HttpProxy,
+                                kCFNetworkProxiesHTTPEnable,
+                                kCFNetworkProxiesHTTPProxy,
+                                kCFNetworkProxiesHTTPPort);
+    }
+
+
+#ifdef Q_OS_IOS
+    if (protocolSpecificProxy.type() != QNetworkProxy::DefaultProxy
+        && protocolSpecificProxy.type() != QNetworkProxy::DefaultProxy) {
+        // HTTP proxy is enabled (on iOS there is no separate HTTPS, though
+        // 'dict' contains deeply buried entries which are the same as HTTP.
+        result << protocolSpecificProxy;
+    }
+
+    // TODO: check query.queryType()? It's possible, the exclude list
+    // did exclude it but above we added a proxy because HTTP proxy
+    // is found. We'll deal with such a situation later, since now NMI.
+    const auto proxiesForUrl = proxiesForQueryUrl(dict, query.url());
+    for (const auto &proxy : proxiesForUrl) {
+        if (!result.contains(proxy))
+            result << proxy;
+    }
+#else
+    bool isHttps = false;
     if (protocol == "ftp"_L1) {
         protocolSpecificProxy =
             proxyFromDictionary(dict, QNetworkProxy::FtpCachingProxy,
-                                kSCPropNetProxiesFTPEnable,
-                                kSCPropNetProxiesFTPProxy,
-                                kSCPropNetProxiesFTPPort);
-    } else if (protocol == "http"_L1) {
-        protocolSpecificProxy =
-            proxyFromDictionary(dict, QNetworkProxy::HttpProxy,
-                                kSCPropNetProxiesHTTPEnable,
-                                kSCPropNetProxiesHTTPProxy,
-                                kSCPropNetProxiesHTTPPort);
+                                kCFNetworkProxiesFTPEnable,
+                                kCFNetworkProxiesFTPProxy,
+                                kCFNetworkProxiesFTPPort);
     } else if (protocol == "https"_L1) {
         isHttps = true;
         protocolSpecificProxy =
             proxyFromDictionary(dict, QNetworkProxy::HttpProxy,
-                                kSCPropNetProxiesHTTPSEnable,
-                                kSCPropNetProxiesHTTPSProxy,
-                                kSCPropNetProxiesHTTPSPort);
+                                kCFNetworkProxiesHTTPSEnable,
+                                kCFNetworkProxiesHTTPSProxy,
+                                kCFNetworkProxiesHTTPSPort);
     }
+
     if (protocolSpecificProxy.type() != QNetworkProxy::DefaultProxy)
         result << protocolSpecificProxy;
 
     // let's add SOCKSv5 if present too
     QNetworkProxy socks5 = proxyFromDictionary(dict, QNetworkProxy::Socks5Proxy,
-                                               kSCPropNetProxiesSOCKSEnable,
-                                               kSCPropNetProxiesSOCKSProxy,
-                                               kSCPropNetProxiesSOCKSPort);
+                                               kCFNetworkProxiesSOCKSEnable,
+                                               kCFNetworkProxiesSOCKSProxy,
+                                               kCFNetworkProxiesSOCKSPort);
     if (socks5.type() != QNetworkProxy::DefaultProxy)
         result << socks5;
 
     // let's add the HTTPS proxy if present (and if we haven't added
     // yet)
     if (!isHttps) {
-        QNetworkProxy https = proxyFromDictionary(dict, QNetworkProxy::HttpProxy,
-                                                  kSCPropNetProxiesHTTPSEnable,
-                                                  kSCPropNetProxiesHTTPSProxy,
-                                                  kSCPropNetProxiesHTTPSPort);
+        QNetworkProxy https;
+        https = proxyFromDictionary(dict, QNetworkProxy::HttpProxy,
+                                    kCFNetworkProxiesHTTPSEnable,
+                                    kCFNetworkProxiesHTTPSProxy,
+                                    kCFNetworkProxiesHTTPSPort);
+
+
         if (https.type() != QNetworkProxy::DefaultProxy && https != protocolSpecificProxy)
             result << https;
     }
+#endif // !Q_OS_IOS
 
     return result;
 }
diff --git a/src/network/kernel/qnetworkproxy_libproxy.cpp b/src/network/kernel/qnetworkproxy_libproxy.cpp
index 46066b86..248a8d24 100644
--- a/src/network/kernel/qnetworkproxy_libproxy.cpp
+++ b/src/network/kernel/qnetworkproxy_libproxy.cpp
@@ -12,6 +12,7 @@
 #include <QtCore/QUrl>
 #include <QtCore/private/qeventdispatcher_unix_p.h>
 #include <QtCore/private/qthread_p.h>
+#include <QtCore/qapplicationstatic.h>
 
 #include <proxy.h>
 #include <dlfcn.h>
@@ -72,7 +73,7 @@ private:
     Data *request;
 };
 
-Q_GLOBAL_STATIC(QLibProxyWrapper, libProxyWrapper);
+Q_APPLICATION_STATIC(QLibProxyWrapper, libProxyWrapper)
 
 QLibProxyWrapper::QLibProxyWrapper()
 {
diff --git a/src/network/socket/qhttpsocketengine_p.h b/src/network/socket/qhttpsocketengine_p.h
index 24ce2d50..242f1112 100644
--- a/src/network/socket/qhttpsocketengine_p.h
+++ b/src/network/socket/qhttpsocketengine_p.h
@@ -16,10 +16,12 @@
 //
 
 #include <QtNetwork/private/qtnetworkglobal_p.h>
-#include "private/qabstractsocketengine_p.h"
+
+#include <QtNetwork/qnetworkproxy.h>
+
 #include "qabstractsocket.h"
-#include "qnetworkproxy.h"
 #include "private/qauthenticator_p.h"
+#include "private/qabstractsocketengine_p.h"
 
 QT_REQUIRE_CONFIG(http);
 
diff --git a/src/network/socket/qnativesocketengine_p.h b/src/network/socket/qnativesocketengine_p.h
index 422e7da8..4ee9764e 100644
--- a/src/network/socket/qnativesocketengine_p.h
+++ b/src/network/socket/qnativesocketengine_p.h
@@ -20,8 +20,14 @@
 #include "QtNetwork/qhostaddress.h"
 #include "QtNetwork/qnetworkinterface.h"
 #include "private/qabstractsocketengine_p.h"
+#include "qplatformdefs.h"
+
 #ifndef Q_OS_WIN
-#  include "qplatformdefs.h"
+#  include <netinet/in.h>
+#else
+#  include <winsock2.h>
+#  include <ws2tcpip.h>
+#  include <mswsock.h>
 #endif
 
 QT_BEGIN_NAMESPACE
@@ -35,12 +41,58 @@ namespace {
 namespace SetSALen {
     template <typename T> void set(T *sa, typename std::enable_if<(&T::sa_len, true), QT_SOCKLEN_T>::type len)
     { sa->sa_len = len; }
+    template <typename T> void set(T *sa, typename std::enable_if<(&T::sin_len, true), QT_SOCKLEN_T>::type len)
+    { sa->sin_len = len; }
     template <typename T> void set(T *sin6, typename std::enable_if<(&T::sin6_len, true), QT_SOCKLEN_T>::type len)
     { sin6->sin6_len = len; }
     template <typename T> void set(T *, ...) {}
 }
+
+inline QT_SOCKLEN_T setSockaddr(sockaddr_in *sin, const QHostAddress &addr, quint16 port = 0)
+{
+    *sin = {};
+    SetSALen::set(sin, sizeof(*sin));
+    sin->sin_family = AF_INET;
+    sin->sin_port = htons(port);
+    sin->sin_addr.s_addr = htonl(addr.toIPv4Address());
+    return sizeof(*sin);
 }
 
+inline QT_SOCKLEN_T setSockaddr(sockaddr_in6 *sin6, const QHostAddress &addr, quint16 port = 0)
+{
+    *sin6 = {};
+    SetSALen::set(sin6, sizeof(*sin6));
+    sin6->sin6_family = AF_INET6;
+    sin6->sin6_port = htons(port);
+    memcpy(sin6->sin6_addr.s6_addr, addr.toIPv6Address().c, sizeof(sin6->sin6_addr));
+#if QT_CONFIG(networkinterface)
+    sin6->sin6_scope_id = QNetworkInterface::interfaceIndexFromName(addr.scopeId());
+#else
+    // it had better be a number then, if it is not empty
+    sin6->sin6_scope_id = addr.scopeId().toUInt();
+#endif
+    return sizeof(*sin6);
+}
+
+inline QT_SOCKLEN_T setSockaddr(sockaddr *sa, const QHostAddress &addr, quint16 port = 0)
+{
+    switch (addr.protocol()) {
+    case QHostAddress::IPv4Protocol:
+        return setSockaddr(reinterpret_cast<sockaddr_in *>(sa), addr, port);
+
+    case QHostAddress::IPv6Protocol:
+    case QHostAddress::AnyIPProtocol:
+        return setSockaddr(reinterpret_cast<sockaddr_in6 *>(sa), addr, port);
+
+    case QHostAddress::UnknownNetworkLayerProtocol:
+        break;
+    }
+    *sa = {};
+    sa->sa_family = AF_UNSPEC;
+    return 0;
+}
+} // unnamed namespace
+
 class QNativeSocketEnginePrivate;
 #ifndef QT_NO_NETWORKINTERFACE
 class QNetworkInterface;
diff --git a/src/network/socket/qnativesocketengine_p_p.h b/src/network/socket/qnativesocketengine_p_p.h
index 013b62ad..d52a30b1 100644
--- a/src/network/socket/qnativesocketengine_p_p.h
+++ b/src/network/socket/qnativesocketengine_p_p.h
@@ -155,39 +155,31 @@ public:
     bool checkProxy(const QHostAddress &address);
     bool fetchConnectionParameters();
 
-#if QT_CONFIG(networkinterface)
-    static uint scopeIdFromString(const QString &scopeid)
-    { return QNetworkInterface::interfaceIndexFromName(scopeid); }
-#endif
-
     /*! \internal
         Sets \a address and \a port in the \a aa sockaddr structure and the size in \a sockAddrSize.
         The address \a is converted to IPv6 if the current socket protocol is also IPv6.
      */
     void setPortAndAddress(quint16 port, const QHostAddress &address, qt_sockaddr *aa, QT_SOCKLEN_T *sockAddrSize)
     {
-        if (address.protocol() == QAbstractSocket::IPv6Protocol
-            || address.protocol() == QAbstractSocket::AnyIPProtocol
-            || socketProtocol == QAbstractSocket::IPv6Protocol
-            || socketProtocol == QAbstractSocket::AnyIPProtocol) {
-            memset(&aa->a6, 0, sizeof(sockaddr_in6));
-            aa->a6.sin6_family = AF_INET6;
-#if QT_CONFIG(networkinterface)
-            aa->a6.sin6_scope_id = scopeIdFromString(address.scopeId());
-#endif
-            aa->a6.sin6_port = htons(port);
-            Q_IPV6ADDR tmp = address.toIPv6Address();
-            memcpy(&aa->a6.sin6_addr, &tmp, sizeof(tmp));
+        switch (socketProtocol) {
+        case QHostAddress::IPv6Protocol:
+        case QHostAddress::AnyIPProtocol:
+            // force to IPv6
+            setSockaddr(&aa->a6, address, port);
             *sockAddrSize = sizeof(sockaddr_in6);
-            SetSALen::set(&aa->a, sizeof(sockaddr_in6));
-        } else {
-            memset(&aa->a, 0, sizeof(sockaddr_in));
-            aa->a4.sin_family = AF_INET;
-            aa->a4.sin_port = htons(port);
-            aa->a4.sin_addr.s_addr = htonl(address.toIPv4Address());
+            return;
+
+        case QHostAddress::IPv4Protocol:
+            // force to IPv4
+            setSockaddr(&aa->a4, address, port);
             *sockAddrSize = sizeof(sockaddr_in);
-            SetSALen::set(&aa->a, sizeof(sockaddr_in));
+            return;
+
+        case QHostAddress::UnknownNetworkLayerProtocol:
+            // don't force
+            break;
         }
+        *sockAddrSize = setSockaddr(&aa->a, address, port);
     }
 
 };
diff --git a/src/network/socket/qsocks5socketengine.cpp b/src/network/socket/qsocks5socketengine.cpp
index b1bca2bf..2669614f 100644
--- a/src/network/socket/qsocks5socketengine.cpp
+++ b/src/network/socket/qsocks5socketengine.cpp
@@ -317,9 +317,11 @@ void QSocks5BindStore::add(qintptr socketDescriptor, QSocks5BindData *bindData)
     }
     bindData->timeStamp.start();
     store.insert(socketDescriptor, bindData);
+
+    using namespace std::chrono_literals;
     // start sweep timer if not started
     if (sweepTimerId == -1)
-        sweepTimerId = startTimer(60000);
+        sweepTimerId = startTimer(1min);
 }
 
 bool QSocks5BindStore::contains(qintptr socketDescriptor)
diff --git a/src/network/socket/qsocks5socketengine_p.h b/src/network/socket/qsocks5socketengine_p.h
index c446f471..790c3077 100644
--- a/src/network/socket/qsocks5socketengine_p.h
+++ b/src/network/socket/qsocks5socketengine_p.h
@@ -16,8 +16,10 @@
 //
 
 #include <QtNetwork/private/qtnetworkglobal_p.h>
+
+#include <QtNetwork/qnetworkproxy.h>
+
 #include "qabstractsocketengine_p.h"
-#include "qnetworkproxy.h"
 
 QT_REQUIRE_CONFIG(socks5);
 
diff --git a/src/network/ssl/qpassworddigestor.cpp b/src/network/ssl/qpassworddigestor.cpp
index a08702e7..94de14ab 100644
--- a/src/network/ssl/qpassworddigestor.cpp
+++ b/src/network/ssl/qpassworddigestor.cpp
@@ -6,9 +6,20 @@
 #include <QtCore/QDebug>
 #include <QtCore/QMessageAuthenticationCode>
 #include <QtCore/QtEndian>
+#include <QtCore/QList>
+
+#include "qtcore-config_p.h"
 
 #include <limits>
 
+#if QT_CONFIG(opensslv30) && QT_CONFIG(openssl_linked)
+#define USING_OPENSSL30
+#include <openssl/core_names.h>
+#include <openssl/kdf.h>
+#include <openssl/params.h>
+#include <openssl/provider.h>
+#endif
+
 QT_BEGIN_NAMESPACE
 namespace QPasswordDigestor {
 
@@ -86,6 +97,85 @@ Q_NETWORK_EXPORT QByteArray deriveKeyPbkdf1(QCryptographicHash::Algorithm algori
     return key.left(dkLen);
 }
 
+#ifdef USING_OPENSSL30
+// Copied from QCryptographicHashPrivate
+static constexpr const char * methodToName(QCryptographicHash::Algorithm method) noexcept
+{
+    switch (method) {
+#define CASE(Enum, Name) \
+    case QCryptographicHash:: Enum : \
+        return Name \
+    /*end*/
+    CASE(Sha1, "SHA1");
+    CASE(Md4, "MD4");
+    CASE(Md5, "MD5");
+    CASE(Sha224, "SHA224");
+    CASE(Sha256, "SHA256");
+    CASE(Sha384, "SHA384");
+    CASE(Sha512, "SHA512");
+    CASE(RealSha3_224, "SHA3-224");
+    CASE(RealSha3_256, "SHA3-256");
+    CASE(RealSha3_384, "SHA3-384");
+    CASE(RealSha3_512, "SHA3-512");
+    CASE(Keccak_224, "SHA3-224");
+    CASE(Keccak_256, "SHA3-256");
+    CASE(Keccak_384, "SHA3-384");
+    CASE(Keccak_512, "SHA3-512");
+    CASE(Blake2b_512, "BLAKE2B512");
+    CASE(Blake2s_256, "BLAKE2S256");
+#undef CASE
+    default: return nullptr;
+    }
+}
+
+static QByteArray opensslDeriveKeyPbkdf2(QCryptographicHash::Algorithm algorithm,
+                                         const QByteArray &data, const QByteArray &salt,
+                                         uint64_t iterations, quint64 dkLen)
+{
+    EVP_KDF *kdf = EVP_KDF_fetch(nullptr, "PBKDF2", nullptr);
+
+    if (!kdf)
+        return QByteArray();
+
+    auto cleanUpKdf = qScopeGuard([kdf] {
+        EVP_KDF_free(kdf);
+    });
+
+    EVP_KDF_CTX *ctx = EVP_KDF_CTX_new(kdf);
+
+    if (!ctx)
+        return QByteArray();
+
+    auto cleanUpCtx = qScopeGuard([ctx] {
+        EVP_KDF_CTX_free(ctx);
+    });
+
+    // Do not enable SP800-132 compliance check, otherwise we will require:
+    // - the iteration count is at least 1000
+    // - the salt length is at least 128 bits
+    // - the derived key length is at least 112 bits
+    // This would be a different behavior from the original implementation.
+    int checkDisabled = 1;
+    QList<OSSL_PARAM> params;
+    params.append(OSSL_PARAM_construct_utf8_string(OSSL_KDF_PARAM_DIGEST, const_cast<char*>(methodToName(algorithm)), 0));
+    params.append(OSSL_PARAM_construct_octet_string(OSSL_KDF_PARAM_SALT, const_cast<char*>(salt.data()), salt.size()));
+    params.append(OSSL_PARAM_construct_octet_string(OSSL_KDF_PARAM_PASSWORD, const_cast<char*>(data.data()), data.size()));
+    params.append(OSSL_PARAM_construct_uint64(OSSL_KDF_PARAM_ITER, &iterations));
+    params.append(OSSL_PARAM_construct_int(OSSL_KDF_PARAM_PKCS5, &checkDisabled));
+    params.append(OSSL_PARAM_construct_end());
+
+    if (EVP_KDF_CTX_set_params(ctx, params.data()) <= 0)
+        return QByteArray();
+
+    QByteArray derived(dkLen, '\0');
+
+    if (!EVP_KDF_derive(ctx, reinterpret_cast<unsigned char*>(derived.data()), derived.size(), nullptr))
+        return QByteArray();
+
+    return derived;
+}
+#endif
+
 /*!
     \since 5.12
 
@@ -107,8 +197,6 @@ Q_NETWORK_EXPORT QByteArray deriveKeyPbkdf2(QCryptographicHash::Algorithm algori
                                             const QByteArray &data, const QByteArray &salt,
                                             int iterations, quint64 dkLen)
 {
-    // https://tools.ietf.org/html/rfc8018#section-5.2
-
     // The RFC recommends checking that 'dkLen' is not greater than '(2^32 - 1) * hLen'
     int hashLen = QCryptographicHash::hashLength(algorithm);
     const quint64 maxLen = quint64(std::numeric_limits<quint32>::max() - 1) * hashLen;
@@ -122,6 +210,12 @@ Q_NETWORK_EXPORT QByteArray deriveKeyPbkdf2(QCryptographicHash::Algorithm algori
     if (iterations < 1 || dkLen < 1)
         return QByteArray();
 
+#ifdef USING_OPENSSL30
+    if (methodToName(algorithm))
+        return opensslDeriveKeyPbkdf2(algorithm, data, salt, iterations, dkLen);
+#endif
+
+    // https://tools.ietf.org/html/rfc8018#section-5.2
     QByteArray key;
     quint32 currentIteration = 1;
     QMessageAuthenticationCode hmac(algorithm, data);
diff --git a/src/network/ssl/qsslcertificate.h b/src/network/ssl/qsslcertificate.h
index 5807c8d2..cdf11b28 100644
--- a/src/network/ssl/qsslcertificate.h
+++ b/src/network/ssl/qsslcertificate.h
@@ -14,8 +14,8 @@
 #include <QtCore/qbytearray.h>
 #include <QtCore/qcryptographichash.h>
 #include <QtCore/qdatetime.h>
-#include <QtCore/qsharedpointer.h>
 #include <QtCore/qmap.h>
+#include <QtCore/qshareddata.h>
 #include <QtNetwork/qssl.h>
 
 QT_BEGIN_NAMESPACE
diff --git a/src/network/ssl/qsslkey.h b/src/network/ssl/qsslkey.h
index db14c89c..decfc4b5 100644
--- a/src/network/ssl/qsslkey.h
+++ b/src/network/ssl/qsslkey.h
@@ -8,7 +8,7 @@
 #include <QtNetwork/qtnetworkglobal.h>
 #include <QtCore/qnamespace.h>
 #include <QtCore/qbytearray.h>
-#include <QtCore/qsharedpointer.h>
+#include <QtCore/qshareddata.h>
 #include <QtNetwork/qssl.h>
 
 QT_BEGIN_NAMESPACE
diff --git a/src/network/ssl/qtlsbackend_p.h b/src/network/ssl/qtlsbackend_p.h
index c69e6418..76fa0994 100644
--- a/src/network/ssl/qtlsbackend_p.h
+++ b/src/network/ssl/qtlsbackend_p.h
@@ -31,7 +31,6 @@
 #include <QtNetwork/qssl.h>
 
 #include <QtCore/qloggingcategory.h>
-#include <QtCore/qsharedpointer.h>
 #include <QtCore/qnamespace.h>
 #include <QtCore/qobject.h>
 #include <QtCore/qglobal.h>
diff --git a/src/opengl/qopenglcompositor.cpp b/src/opengl/qopenglcompositor.cpp
index 3e1b2aeb..b260445f 100644
--- a/src/opengl/qopenglcompositor.cpp
+++ b/src/opengl/qopenglcompositor.cpp
@@ -4,7 +4,7 @@
 #include <QtOpenGL/QOpenGLFramebufferObject>
 #include <QtGui/QOpenGLContext>
 #include <QtGui/QWindow>
-#include <QtGui/private/qrhi_p.h>
+#include <rhi/qrhi.h>
 #include <qpa/qplatformbackingstore.h>
 
 #include "qopenglcompositor_p.h"
diff --git a/src/opengl/qopenglcompositorbackingstore.cpp b/src/opengl/qopenglcompositorbackingstore.cpp
index a5cc391e..8bc1ec75 100644
--- a/src/opengl/qopenglcompositorbackingstore.cpp
+++ b/src/opengl/qopenglcompositorbackingstore.cpp
@@ -6,7 +6,7 @@
 #include <QtGui/QPainter>
 #include <qpa/qplatformbackingstore.h>
 #include <private/qwindow_p.h>
-#include <private/qrhi_p.h>
+#include <rhi/qrhi.h>
 
 #include "qopenglcompositorbackingstore_p.h"
 #include "qopenglcompositor_p.h"
diff --git a/src/opengl/qopenglwindow.cpp b/src/opengl/qopenglwindow.cpp
index 3cef97e8..b2a1a35a 100644
--- a/src/opengl/qopenglwindow.cpp
+++ b/src/opengl/qopenglwindow.cpp
@@ -393,7 +393,7 @@ bool QOpenGLWindow::isValid() const
 /*!
   Prepares for rendering OpenGL content for this window by making the
   corresponding context current and binding the framebuffer object, if there is
-  one, in that context context.
+  one, in that context.
 
   It is not necessary to call this function in most cases, because it is called
   automatically before invoking paintGL(). It is provided nonetheless to support
diff --git a/src/openglwidgets/qopenglwidget.cpp b/src/openglwidgets/qopenglwidget.cpp
index cbc0b751..5fae60ee 100644
--- a/src/openglwidgets/qopenglwidget.cpp
+++ b/src/openglwidgets/qopenglwidget.cpp
@@ -23,8 +23,7 @@
 #include <QtWidgets/private/qwidget_p.h>
 #include <QtWidgets/private/qwidgetrepaintmanager_p.h>
 
-#include <QtGui/private/qrhi_p.h>
-#include <QtGui/private/qrhigles2_p.h>
+#include <rhi/qrhi.h>
 
 QT_BEGIN_NAMESPACE
 
@@ -1700,7 +1699,7 @@ bool QOpenGLWidget::event(QEvent *e)
             }
         }
         break;
-    case QEvent::ScreenChangeInternal:
+    case QEvent::DevicePixelRatioChange:
         if (d->initialized && d->paintDevice->devicePixelRatio() != devicePixelRatio())
             d->recreateFbos();
         break;
diff --git a/src/platformsupport/input/evdevkeyboard/qevdevkeyboardhandler_p.h b/src/platformsupport/input/evdevkeyboard/qevdevkeyboardhandler_p.h
index ed437c00..1d991e2b 100644
--- a/src/platformsupport/input/evdevkeyboard/qevdevkeyboardhandler_p.h
+++ b/src/platformsupport/input/evdevkeyboard/qevdevkeyboardhandler_p.h
@@ -101,7 +101,7 @@ class QFdContainer
     int m_fd;
     Q_DISABLE_COPY_MOVE(QFdContainer);
 public:
-    explicit QFdContainer(int fd = -1) noexcept : m_fd(fd) {}
+    Q_NODISCARD_CTOR explicit QFdContainer(int fd = -1) noexcept : m_fd(fd) {}
     ~QFdContainer() { reset(); }
 
     int get() const noexcept { return m_fd; }
diff --git a/src/plugins/generic/CMakeLists.txt b/src/plugins/generic/CMakeLists.txt
index 313fafc1..6d3cf2a9 100644
--- a/src/plugins/generic/CMakeLists.txt
+++ b/src/plugins/generic/CMakeLists.txt
@@ -19,6 +19,6 @@ if(QT_FEATURE_libinput)
     add_subdirectory(libinput)
 endif()
 if(FREEBSD)
-    # add_subdirectory(bsdkeyboard) # special case TODO
-    # add_subdirectory(bsdmouse) # special case TODO
+    # add_subdirectory(bsdkeyboard) # TODO: QTBUG-112770
+    # add_subdirectory(bsdmouse) # TODO: QTBUG-112770
 endif()
diff --git a/src/plugins/networkinformation/networkmanager/qnetworkmanagerservice.cpp b/src/plugins/networkinformation/networkmanager/qnetworkmanagerservice.cpp
index 3a64c189..4c0ea141 100644
--- a/src/plugins/networkinformation/networkmanager/qnetworkmanagerservice.cpp
+++ b/src/plugins/networkinformation/networkmanager/qnetworkmanagerservice.cpp
@@ -59,14 +59,14 @@ QNetworkManagerInterface::QNetworkManagerInterface(QObject *parent)
 
     QDBusConnection::systemBus().connect(NM_DBUS_SERVICE ""_L1, NM_DBUS_PATH ""_L1,
             DBUS_PROPERTIES_INTERFACE""_L1, "PropertiesChanged"_L1, this,
-            SLOT(setProperties(QString, QMap<QString, QVariant>, QList<QString>)));
+            SLOT(setProperties(QString,QMap<QString,QVariant>,QList<QString>)));
 }
 
 QNetworkManagerInterface::~QNetworkManagerInterface()
 {
     QDBusConnection::systemBus().disconnect(NM_DBUS_SERVICE ""_L1, NM_DBUS_PATH ""_L1,
             DBUS_PROPERTIES_INTERFACE ""_L1, "PropertiesChanged"_L1, this,
-            SLOT(setProperties(QString, QMap<QString, QVariant>, QList<QString>)));
+            SLOT(setProperties(QString,QMap<QString,QVariant>,QList<QString>)));
 }
 
 QNetworkManagerInterface::NMState QNetworkManagerInterface::state() const
diff --git a/src/plugins/platforms/CMakeLists.txt b/src/plugins/platforms/CMakeLists.txt
index bcf29ded..69071a22 100644
--- a/src/plugins/platforms/CMakeLists.txt
+++ b/src/plugins/platforms/CMakeLists.txt
@@ -42,16 +42,16 @@ if(QT_FEATURE_vnc AND TARGET Qt::Network)
     add_subdirectory(vnc)
 endif()
 if(FREEBSD)
-    # add_subdirectory(bsdfb) # special case TODO
+    # add_subdirectory(bsdfb) # TODO: QTBUG-112768
 endif()
 if(HAIKU)
-    # add_subdirectory(haiku) # special case TODO
+    # add_subdirectory(haiku) # TODO: QTBUG-112768
 endif()
 if(WASM)
      add_subdirectory(wasm)
 endif()
 if(QT_FEATURE_integrityfb)
-    # add_subdirectory(integrity) # special case TODO
+    # add_subdirectory(integrity) # TODO: QTBUG-112768
 endif()
 if(QT_FEATURE_vkkhrdisplay)
     add_subdirectory(vkkhrdisplay)
diff --git a/src/plugins/platforms/android/qandroidplatformdialoghelpers.cpp b/src/plugins/platforms/android/qandroidplatformdialoghelpers.cpp
index 56b1ffd8..25427d5e 100644
--- a/src/plugins/platforms/android/qandroidplatformdialoghelpers.cpp
+++ b/src/plugins/platforms/android/qandroidplatformdialoghelpers.cpp
@@ -57,7 +57,7 @@ bool QAndroidPlatformMessageDialogHelper::show(Qt::WindowFlags windowFlags,
     if (!opt->checkBoxLabel().isNull())
         return false; // Can't support
 
-    m_javaMessageDialog.callMethod<void>("setIcon", "(I)V", opt->icon());
+    m_javaMessageDialog.callMethod<void>("setStandardIcon", "(I)V", opt->standardIcon());
 
     QString str = htmlText(opt->windowTitle());
     if (!str.isEmpty()) {
diff --git a/src/plugins/platforms/android/qandroidplatformfiledialoghelper.cpp b/src/plugins/platforms/android/qandroidplatformfiledialoghelper.cpp
index 3723e333..2d0eeecd 100644
--- a/src/plugins/platforms/android/qandroidplatformfiledialoghelper.cpp
+++ b/src/plugins/platforms/android/qandroidplatformfiledialoghelper.cpp
@@ -146,12 +146,15 @@ void QAndroidPlatformFileDialogHelper::setMimeTypes()
 {
     QStringList mimeTypes = options()->mimeTypeFilters();
     const QStringList nameFilters = options()->nameFilters();
-    const QString nameFilter = nameFilters.isEmpty() ? QString() : nameFilters.first();
 
-    if (!nameFilter.isEmpty()) {
+    if (!nameFilters.isEmpty()) {
         QMimeDatabase db;
-        for (const QString &filter : nameFilterExtensions(nameFilter))
-            mimeTypes.append(db.mimeTypeForFile(filter, QMimeDatabase::MatchExtension).name());
+        for (auto filter : nameFilters) {
+            if (!filter.isEmpty()) {
+                for (const QString &filter : nameFilterExtensions(filter))
+                    mimeTypes.append(db.mimeTypeForFile(filter, QMimeDatabase::MatchExtension).name());
+            }
+        }
     }
 
     const QString initialType = mimeTypes.size() == 1 ? mimeTypes.at(0) : "*/*"_L1;
diff --git a/src/plugins/platforms/android/qandroidplatformservices.cpp b/src/plugins/platforms/android/qandroidplatformservices.cpp
index 2599fe6d..59642364 100644
--- a/src/plugins/platforms/android/qandroidplatformservices.cpp
+++ b/src/plugins/platforms/android/qandroidplatformservices.cpp
@@ -35,6 +35,11 @@ QAndroidPlatformServices::QAndroidPlatformServices()
             Qt::QueuedConnection);
 }
 
+Q_DECLARE_JNI_TYPE(UriType, "Landroid/net/Uri;")
+Q_DECLARE_JNI_TYPE(FileType, "Ljava/io/File;")
+Q_DECLARE_JNI_CLASS(File, "java/io/File")
+Q_DECLARE_JNI_CLASS(FileProvider, "androidx/core/content/FileProvider");
+
 bool QAndroidPlatformServices::openUrl(const QUrl &theUrl)
 {
     QString mime;
@@ -55,13 +60,36 @@ bool QAndroidPlatformServices::openUrl(const QUrl &theUrl)
     if (url.scheme() == fileScheme)
         mime = QMimeDatabase().mimeTypeForUrl(url).name();
 
+    const QJniObject mimeString = QJniObject::fromString(mime);
+
     using namespace QNativeInterface;
-    QJniObject urlString = QJniObject::fromString(url.toString());
-    QJniObject mimeString = QJniObject::fromString(mime);
-    return QJniObject::callStaticMethod<jboolean>(
-            QtAndroid::applicationClass(), "openURL",
-            "(Landroid/content/Context;Ljava/lang/String;Ljava/lang/String;)Z",
-            QAndroidApplication::context(), urlString.object(), mimeString.object());
+
+    auto openUrl = [mimeString](const QJniObject &url) {
+        return QJniObject::callStaticMethod<jboolean>(QtAndroid::applicationClass(), "openURL",
+            QAndroidApplication::context(), url.object<jstring>(), mimeString.object<jstring>());
+    };
+
+    if (url.scheme() != fileScheme || QNativeInterface::QAndroidApplication::sdkVersion() < 24)
+        return openUrl(QJniObject::fromString(url.toString()));
+
+    // Use FileProvider for file scheme with sdk >= 24
+    const QJniObject context = QAndroidApplication::context();
+    const auto appId = context.callMethod<jstring>("getPackageName").toString();
+    const auto providerName = QJniObject::fromString(appId + ".qtprovider"_L1);
+
+    const auto urlPath = QJniObject::fromString(url.path());
+    const auto urlFile = QJniObject(QtJniTypes::className<QtJniTypes::File>(),
+                                    urlPath.object<jstring>());
+
+    const auto fileProviderUri = QJniObject::callStaticMethod<QtJniTypes::UriType>(
+            QtJniTypes::className<QtJniTypes::FileProvider>(), "getUriForFile",
+            QAndroidApplication::context(), providerName.object<jstring>(),
+            urlFile.object<QtJniTypes::FileType>());
+
+    if (fileProviderUri.isValid())
+        return openUrl(fileProviderUri.callMethod<jstring>("toString"));
+
+    return false;
 }
 
 bool QAndroidPlatformServices::openDocument(const QUrl &url)
diff --git a/src/plugins/platforms/cocoa/qcocoaaccessibility.mm b/src/plugins/platforms/cocoa/qcocoaaccessibility.mm
index dc817d9d..c5e40a40 100644
--- a/src/plugins/platforms/cocoa/qcocoaaccessibility.mm
+++ b/src/plugins/platforms/cocoa/qcocoaaccessibility.mm
@@ -155,6 +155,8 @@ NSString *macRole(QAccessibleInterface *interface)
 
     if (roleMap.contains(qtRole)) {
        // MAC_ACCESSIBILTY_DEBUG() << "return" <<  roleMap[qtRole];
+        if (roleMap[qtRole] == NSAccessibilityComboBoxRole && !interface->state().editable)
+            return NSAccessibilityMenuButtonRole;
         if (roleMap[qtRole] == NSAccessibilityTextFieldRole && interface->state().multiLine)
             return NSAccessibilityTextAreaRole;
         return roleMap[qtRole];
diff --git a/src/plugins/platforms/cocoa/qcocoaapplicationdelegate.mm b/src/plugins/platforms/cocoa/qcocoaapplicationdelegate.mm
index e93d3b62..bb7b5c3c 100644
--- a/src/plugins/platforms/cocoa/qcocoaapplicationdelegate.mm
+++ b/src/plugins/platforms/cocoa/qcocoaapplicationdelegate.mm
@@ -318,7 +318,16 @@ QT_USE_NAMESPACE
 {
     Q_UNUSED(replyEvent);
     NSString *urlString = [[event paramDescriptorForKeyword:keyDirectObject] stringValue];
-    QWindowSystemInterface::handleFileOpenEvent(QUrl(QString::fromNSString(urlString)));
+    // The string we get from the requesting application might not necessarily meet
+    // QUrl's requirement for a IDN-compliant host. So if we can't parse into a QUrl,
+    // then we pass the string on to the application as the name of a file (and
+    // QFileOpenEvent::file is not guaranteed to be the path to a local, open'able
+    // file anyway).
+    const QString qurlString = QString::fromNSString(urlString);
+    if (const QUrl url(qurlString); url.isValid())
+        QWindowSystemInterface::handleFileOpenEvent(url);
+    else
+        QWindowSystemInterface::handleFileOpenEvent(qurlString);
 }
 @end
 
diff --git a/src/plugins/platforms/cocoa/qcocoaeventdispatcher.mm b/src/plugins/platforms/cocoa/qcocoaeventdispatcher.mm
index dbb2de01..fd0a4b47 100644
--- a/src/plugins/platforms/cocoa/qcocoaeventdispatcher.mm
+++ b/src/plugins/platforms/cocoa/qcocoaeventdispatcher.mm
@@ -596,6 +596,7 @@ void QCocoaEventDispatcherPrivate::ensureNSAppInitialized()
     CFRunLoopPerformBlock(mainRunLoop(), kCFRunLoopCommonModes, ^{
         qCDebug(lcEventDispatcher) << "NSApplication has been initialized; Stopping NSApp";
         [NSApp stop:NSApp];
+        cancelWaitForMoreEvents(); // Post event that wakes up the runloop
     });
     [NSApp run];
     qCDebug(lcEventDispatcher) << "Finished ensuring NSApplication is initialized";
diff --git a/src/plugins/platforms/cocoa/qcocoafiledialoghelper.mm b/src/plugins/platforms/cocoa/qcocoafiledialoghelper.mm
index 1b414d07..4ddc8b9a 100644
--- a/src/plugins/platforms/cocoa/qcocoafiledialoghelper.mm
+++ b/src/plugins/platforms/cocoa/qcocoafiledialoghelper.mm
@@ -58,9 +58,9 @@ typedef QSharedPointer<QFileDialogOptions> SharedPointerFileDialogOptions;
     NSString *m_currentDirectory;
 
     SharedPointerFileDialogOptions m_options;
-    QString *m_currentSelection;
-    QStringList *m_nameFilterDropDownList;
-    QStringList *m_selectedNameFilter;
+    QString m_currentSelection;
+    QStringList m_nameFilterDropDownList;
+    QStringList m_selectedNameFilter;
 }
 
 - (instancetype)initWithAcceptMode:(const QString &)selectFile
@@ -80,24 +80,24 @@ typedef QSharedPointer<QFileDialogOptions> SharedPointerFileDialogOptions;
 
         m_helper = helper;
 
-        m_nameFilterDropDownList = new QStringList(m_options->nameFilters());
+        m_nameFilterDropDownList = m_options->nameFilters();
         QString selectedVisualNameFilter = m_options->initiallySelectedNameFilter();
-        m_selectedNameFilter = new QStringList([self findStrippedFilterWithVisualFilterName:selectedVisualNameFilter]);
+        m_selectedNameFilter = [self findStrippedFilterWithVisualFilterName:selectedVisualNameFilter];
 
-        QFileInfo sel(selectFile);
+        const QFileInfo sel(selectFile);
         if (sel.isDir() && !sel.isBundle()){
             m_currentDirectory = [sel.absoluteFilePath().toNSString() retain];
-            m_currentSelection = new QString;
+            m_currentSelection.clear();
         } else {
             m_currentDirectory = [sel.absolutePath().toNSString() retain];
-            m_currentSelection = new QString(sel.absoluteFilePath());
+            m_currentSelection = sel.absoluteFilePath();
         }
 
         [self createPopUpButton:selectedVisualNameFilter hideDetails:options->testOption(QFileDialogOptions::HideNameFilterDetails)];
         [self createTextField];
         [self createAccessory];
 
-        m_panel.accessoryView = m_nameFilterDropDownList->size() > 1 ? m_accessoryView : nil;
+        m_panel.accessoryView = m_nameFilterDropDownList.size() > 1 ? m_accessoryView : nil;
         // -setAccessoryView: can result in -panel:directoryDidChange:
         // resetting our m_currentDirectory, set the delegate
         // here to make sure it gets the correct value.
@@ -113,10 +113,6 @@ typedef QSharedPointer<QFileDialogOptions> SharedPointerFileDialogOptions;
 
 - (void)dealloc
 {
-    delete m_nameFilterDropDownList;
-    delete m_selectedNameFilter;
-    delete m_currentSelection;
-
     [m_panel orderOut:m_panel];
     m_panel.accessoryView = nil;
     [m_popupButton release];
@@ -130,7 +126,7 @@ typedef QSharedPointer<QFileDialogOptions> SharedPointerFileDialogOptions;
 
 - (bool)showPanel:(Qt::WindowModality) windowModality withParent:(QWindow *)parent
 {
-    QFileInfo info(*m_currentSelection);
+    const QFileInfo info(m_currentSelection);
     NSString *filepath = info.filePath().toNSString();
     NSURL *url = [NSURL fileURLWithPath:filepath isDirectory:info.isDir()];
     bool selectable = (m_options->acceptMode() == QFileDialogOptions::AcceptSave)
@@ -184,7 +180,7 @@ typedef QSharedPointer<QFileDialogOptions> SharedPointerFileDialogOptions;
 
 - (void)closePanel
 {
-    *m_currentSelection = QString::fromNSString(m_panel.URL.path).normalized(QString::NormalizationForm_C);
+    m_currentSelection = QString::fromNSString(m_panel.URL.path).normalized(QString::NormalizationForm_C);
 
     if (m_panel.sheet)
         [NSApp endSheet:m_panel];
@@ -202,7 +198,7 @@ typedef QSharedPointer<QFileDialogOptions> SharedPointerFileDialogOptions;
     if (!filename.length)
         return NO;
 
-    QFileInfo fileInfo(QString::fromNSString(filename));
+    const QFileInfo fileInfo(QString::fromNSString(filename));
 
     // Always accept directories regardless of their names.
     // This also includes symlinks and aliases to directories.
@@ -217,12 +213,12 @@ typedef QSharedPointer<QFileDialogOptions> SharedPointerFileDialogOptions;
             return YES;
     }
 
-    QString qtFileName = fileInfo.fileName();
+    const QString qtFileName = fileInfo.fileName();
     // No filter means accept everything
-    bool nameMatches = m_selectedNameFilter->isEmpty();
+    bool nameMatches = m_selectedNameFilter.isEmpty();
     // Check if the current file name filter accepts the file:
-    for (int i = 0; !nameMatches && i < m_selectedNameFilter->size(); ++i) {
-        if (QDir::match(m_selectedNameFilter->at(i), qtFileName))
+    for (int i = 0; !nameMatches && i < m_selectedNameFilter.size(); ++i) {
+        if (QDir::match(m_selectedNameFilter.at(i), qtFileName))
             nameMatches = true;
     }
     if (!nameMatches)
@@ -256,10 +252,10 @@ typedef QSharedPointer<QFileDialogOptions> SharedPointerFileDialogOptions;
 - (void)setNameFilters:(const QStringList &)filters hideDetails:(BOOL)hideDetails
 {
     [m_popupButton removeAllItems];
-    *m_nameFilterDropDownList = filters;
+    m_nameFilterDropDownList = filters;
     if (filters.size() > 0){
         for (int i = 0; i < filters.size(); ++i) {
-            QString filter = hideDetails ? [self removeExtensions:filters.at(i)] : filters.at(i);
+            const QString filter = hideDetails ? [self removeExtensions:filters.at(i)] : filters.at(i);
             [m_popupButton.menu addItemWithTitle:filter.toNSString() action:nil keyEquivalent:@""];
         }
         [m_popupButton selectItemAtIndex:0];
@@ -277,8 +273,8 @@ typedef QSharedPointer<QFileDialogOptions> SharedPointerFileDialogOptions;
     Q_UNUSED(sender);
     if (!m_helper)
         return;
-    QString selection = m_nameFilterDropDownList->value([m_popupButton indexOfSelectedItem]);
-    *m_selectedNameFilter = [self findStrippedFilterWithVisualFilterName:selection];
+    const QString selection = m_nameFilterDropDownList.value([m_popupButton indexOfSelectedItem]);
+    m_selectedNameFilter = [self findStrippedFilterWithVisualFilterName:selection];
     [m_panel validateVisibleColumns];
     [self updateProperties];
 
@@ -368,9 +364,9 @@ typedef QSharedPointer<QFileDialogOptions> SharedPointerFileDialogOptions;
         return;
 
     if (m_panel.visible) {
-        QString selection = QString::fromNSString(m_panel.URL.path);
-        if (selection != *m_currentSelection) {
-            *m_currentSelection = selection;
+        const QString selection = QString::fromNSString(m_panel.URL.path);
+        if (selection != m_currentSelection) {
+            m_currentSelection = selection;
             emit m_helper->currentChanged(QUrl::fromLocalFile(selection));
         }
     }
@@ -410,7 +406,7 @@ typedef QSharedPointer<QFileDialogOptions> SharedPointerFileDialogOptions;
         return nil; // panel:shouldEnableURL: does the file filtering for NSOpenPanel
 
     QStringList fileTypes;
-    for (const QString &filter : *m_selectedNameFilter) {
+    for (const QString &filter : std::as_const(m_selectedNameFilter)) {
         if (!filter.startsWith("*."_L1))
             continue;
 
@@ -457,10 +453,10 @@ typedef QSharedPointer<QFileDialogOptions> SharedPointerFileDialogOptions;
     m_popupButton.target = self;
     m_popupButton.action = @selector(filterChanged:);
 
-    if (m_nameFilterDropDownList->size() > 0) {
+    if (!m_nameFilterDropDownList.isEmpty()) {
         int filterToUse = -1;
-        for (int i = 0; i < m_nameFilterDropDownList->size(); ++i) {
-            QString currentFilter = m_nameFilterDropDownList->at(i);
+        for (int i = 0; i < m_nameFilterDropDownList.size(); ++i) {
+            const QString currentFilter = m_nameFilterDropDownList.at(i);
             if (selectedFilter == currentFilter ||
                 (filterToUse == -1 && currentFilter.startsWith(selectedFilter)))
                 filterToUse = i;
@@ -474,9 +470,9 @@ typedef QSharedPointer<QFileDialogOptions> SharedPointerFileDialogOptions;
 
 - (QStringList) findStrippedFilterWithVisualFilterName:(QString)name
 {
-    for (int i = 0; i < m_nameFilterDropDownList->size(); ++i) {
-        if (m_nameFilterDropDownList->at(i).startsWith(name))
-            return QPlatformFileDialogHelper::cleanFilterList(m_nameFilterDropDownList->at(i));
+    for (const QString &currentFilter : std::as_const(m_nameFilterDropDownList)) {
+        if (currentFilter.startsWith(name))
+            return QPlatformFileDialogHelper::cleanFilterList(currentFilter);
     }
     return QStringList();
 }
diff --git a/src/plugins/platforms/cocoa/qcocoahelpers.h b/src/plugins/platforms/cocoa/qcocoahelpers.h
index 694e57e7..0fcda72b 100644
--- a/src/plugins/platforms/cocoa/qcocoahelpers.h
+++ b/src/plugins/platforms/cocoa/qcocoahelpers.h
@@ -56,16 +56,6 @@ NSDragOperation qt_mac_mapDropActions(Qt::DropActions actions);
 Qt::DropAction qt_mac_mapNSDragOperation(NSDragOperation nsActions);
 Qt::DropActions qt_mac_mapNSDragOperations(NSDragOperation nsActions);
 
-template <typename T>
-typename std::enable_if<std::is_pointer<T>::value, T>::type
-qt_objc_cast(id object)
-{
-    if ([object isKindOfClass:[typename std::remove_pointer<T>::type class]])
-        return static_cast<T>(object);
-
-    return nil;
-}
-
 QT_MANGLE_NAMESPACE(QNSView) *qnsview_cast(NSView *view);
 
 // Misc
diff --git a/src/plugins/platforms/cocoa/qcocoamenuitem.mm b/src/plugins/platforms/cocoa/qcocoamenuitem.mm
index d3f9d096..3a0f71bc 100644
--- a/src/plugins/platforms/cocoa/qcocoamenuitem.mm
+++ b/src/plugins/platforms/cocoa/qcocoamenuitem.mm
@@ -180,38 +180,71 @@ void QCocoaMenuItem::setNativeContents(WId item)
     m_itemView.needsDisplay = YES;
 }
 
-static QPlatformMenuItem::MenuRole detectMenuRole(const QString &caption)
+static QPlatformMenuItem::MenuRole detectMenuRole(const QString &captionWithPossibleMnemonic)
 {
-    QString captionNoAmpersand(caption);
-    captionNoAmpersand.remove(u'&');
-    const QString aboutString = QCoreApplication::translate("QCocoaMenuItem", "About");
-    if (captionNoAmpersand.startsWith(aboutString, Qt::CaseInsensitive)
-        || captionNoAmpersand.endsWith(aboutString, Qt::CaseInsensitive)) {
+    QString itemCaption(captionWithPossibleMnemonic);
+    itemCaption.remove(u'&');
+
+    static const std::tuple<QPlatformMenuItem::MenuRole, std::vector<std::tuple<Qt::MatchFlags, const char *>>> roleMap[] = {
+        { QPlatformMenuItem::AboutRole, {
+            { Qt::MatchStartsWith | Qt::MatchEndsWith, QT_TRANSLATE_NOOP("QCocoaMenuItem", "About") }
+        }},
+        { QPlatformMenuItem::PreferencesRole, {
+            { Qt::MatchStartsWith, QT_TRANSLATE_NOOP("QCocoaMenuItem", "Config") },
+            { Qt::MatchStartsWith, QT_TRANSLATE_NOOP("QCocoaMenuItem", "Preference") },
+            { Qt::MatchStartsWith, QT_TRANSLATE_NOOP("QCocoaMenuItem", "Options") },
+            { Qt::MatchStartsWith, QT_TRANSLATE_NOOP("QCocoaMenuItem", "Setting") },
+            { Qt::MatchStartsWith, QT_TRANSLATE_NOOP("QCocoaMenuItem", "Setup") },
+        }},
+        { QPlatformMenuItem::QuitRole, {
+            { Qt::MatchStartsWith, QT_TRANSLATE_NOOP("QCocoaMenuItem", "Quit") },
+            { Qt::MatchStartsWith, QT_TRANSLATE_NOOP("QCocoaMenuItem", "Exit") },
+        }},
+        { QPlatformMenuItem::CutRole, {
+            { Qt::MatchExactly, QT_TRANSLATE_NOOP("QCocoaMenuItem", "Cut") }
+        }},
+        { QPlatformMenuItem::CopyRole, {
+            { Qt::MatchExactly, QT_TRANSLATE_NOOP("QCocoaMenuItem", "Copy") }
+        }},
+        { QPlatformMenuItem::PasteRole, {
+            { Qt::MatchExactly, QT_TRANSLATE_NOOP("QCocoaMenuItem", "Paste") }
+        }},
+        { QPlatformMenuItem::SelectAllRole, {
+            { Qt::MatchExactly, QT_TRANSLATE_NOOP("QCocoaMenuItem", "Select All") }
+        }},
+    };
+
+    auto match = [](const QString &caption, const QString &itemCaption, Qt::MatchFlags matchFlags) {
+        if (matchFlags.testFlag(Qt::MatchExactly))
+            return !itemCaption.compare(caption, Qt::CaseInsensitive);
+        if (matchFlags.testFlag(Qt::MatchStartsWith) && itemCaption.startsWith(caption, Qt::CaseInsensitive))
+            return true;
+        if (matchFlags.testFlag(Qt::MatchEndsWith) && itemCaption.endsWith(caption, Qt::CaseInsensitive))
+            return true;
+        return false;
+    };
+
+    QPlatformMenuItem::MenuRole detectedRole = [&]{
+        for (const auto &[role, captions] : roleMap) {
+            for (const auto &[matchFlags, caption] : captions) {
+                // Check for untranslated match
+                if (match(caption, itemCaption, matchFlags))
+                    return role;
+                // Then translated with the current Qt translation
+                if (match(QCoreApplication::translate("QCocoaMenuItem", caption), itemCaption, matchFlags))
+                    return role;
+            }
+        }
+        return QPlatformMenuItem::NoRole;
+    }();
+
+    if (detectedRole == QPlatformMenuItem::AboutRole) {
         static const QRegularExpression qtRegExp("qt$"_L1, QRegularExpression::CaseInsensitiveOption);
-        if (captionNoAmpersand.contains(qtRegExp))
-            return QPlatformMenuItem::AboutQtRole;
-        return QPlatformMenuItem::AboutRole;
+        if (itemCaption.contains(qtRegExp))
+            detectedRole = QPlatformMenuItem::AboutQtRole;
     }
-    if (captionNoAmpersand.startsWith(QCoreApplication::translate("QCocoaMenuItem", "Config"), Qt::CaseInsensitive)
-        || captionNoAmpersand.startsWith(QCoreApplication::translate("QCocoaMenuItem", "Preference"), Qt::CaseInsensitive)
-        || captionNoAmpersand.startsWith(QCoreApplication::translate("QCocoaMenuItem", "Options"), Qt::CaseInsensitive)
-        || captionNoAmpersand.startsWith(QCoreApplication::translate("QCocoaMenuItem", "Setting"), Qt::CaseInsensitive)
-        || captionNoAmpersand.startsWith(QCoreApplication::translate("QCocoaMenuItem", "Setup"), Qt::CaseInsensitive)) {
-        return QPlatformMenuItem::PreferencesRole;
-    }
-    if (captionNoAmpersand.startsWith(QCoreApplication::translate("QCocoaMenuItem", "Quit"), Qt::CaseInsensitive)
-        || captionNoAmpersand.startsWith(QCoreApplication::translate("QCocoaMenuItem", "Exit"), Qt::CaseInsensitive)) {
-        return QPlatformMenuItem::QuitRole;
-    }
-    if (!captionNoAmpersand.compare(QCoreApplication::translate("QCocoaMenuItem", "Cut"), Qt::CaseInsensitive))
-        return QPlatformMenuItem::CutRole;
-    if (!captionNoAmpersand.compare(QCoreApplication::translate("QCocoaMenuItem", "Copy"), Qt::CaseInsensitive))
-        return QPlatformMenuItem::CopyRole;
-    if (!captionNoAmpersand.compare(QCoreApplication::translate("QCocoaMenuItem", "Paste"), Qt::CaseInsensitive))
-        return QPlatformMenuItem::PasteRole;
-    if (!captionNoAmpersand.compare(QCoreApplication::translate("QCocoaMenuItem", "Select All"), Qt::CaseInsensitive))
-        return QPlatformMenuItem::SelectAllRole;
-    return QPlatformMenuItem::NoRole;
+
+    return detectedRole;
 }
 
 NSMenuItem *QCocoaMenuItem::sync()
diff --git a/src/plugins/platforms/cocoa/qcocoamessagedialog.mm b/src/plugins/platforms/cocoa/qcocoamessagedialog.mm
index 4a7c7f60..56c3fcee 100644
--- a/src/plugins/platforms/cocoa/qcocoamessagedialog.mm
+++ b/src/plugins/platforms/cocoa/qcocoamessagedialog.mm
@@ -103,7 +103,7 @@ bool QCocoaMessageDialog::show(Qt::WindowFlags windowFlags, Qt::WindowModality w
     m_alert.messageText = text.toNSString();
     m_alert.informativeText = toPlainText(options()->informativeText()).toNSString();
 
-    switch (auto standardIcon = options()->icon()) {
+    switch (options()->standardIcon()) {
     case QMessageDialogOptions::NoIcon: {
         // We only reflect the pixmap icon if the standard icon is unset,
         // as setting a standard icon will also set a corresponding pixmap
diff --git a/src/plugins/platforms/cocoa/qcocoascreen.mm b/src/plugins/platforms/cocoa/qcocoascreen.mm
index 0e5b704c..7f199576 100644
--- a/src/plugins/platforms/cocoa/qcocoascreen.mm
+++ b/src/plugins/platforms/cocoa/qcocoascreen.mm
@@ -466,6 +466,25 @@ void QCocoaScreen::deliverUpdateRequests()
             if (!platformWindow->updatesWithDisplayLink())
                 continue;
 
+            // QTBUG-107198: Skip updates in a live resize for a better resize experience.
+            if (platformWindow->isContentView() && platformWindow->view().inLiveResize) {
+                const QSurface::SurfaceType surfaceType = window->surfaceType();
+                const bool usesMetalLayer = surfaceType == QWindow::MetalSurface || surfaceType == QWindow::VulkanSurface;
+                const bool usesNonDefaultContentsPlacement = [platformWindow->view() layerContentsPlacement]
+                        != NSViewLayerContentsPlacementScaleAxesIndependently;
+                if (usesMetalLayer && usesNonDefaultContentsPlacement) {
+                    static bool deliverDisplayLinkUpdatesDuringLiveResize =
+                            qEnvironmentVariableIsSet("QT_MAC_DISPLAY_LINK_UPDATE_IN_RESIZE");
+                    if (!deliverDisplayLinkUpdatesDuringLiveResize) {
+                        // Must keep the link running, we do not know what the event
+                        // handlers for UpdateRequest (which is not sent now) would do,
+                        // would they trigger a new requestUpdate() or not.
+                        pauseUpdates = false;
+                        continue;
+                    }
+                }
+            }
+
             platformWindow->deliverUpdateRequest();
 
             // Another update request was triggered, keep the display link running
diff --git a/src/plugins/platforms/cocoa/qcocoatheme.h b/src/plugins/platforms/cocoa/qcocoatheme.h
index a7c37a68..90dc4526 100644
--- a/src/plugins/platforms/cocoa/qcocoatheme.h
+++ b/src/plugins/platforms/cocoa/qcocoatheme.h
@@ -54,6 +54,9 @@ private:
     QMacNotificationObserver m_systemColorObserver;
     mutable QHash<QPlatformTheme::Palette, QPalette*> m_palettes;
     QMacKeyValueObserver m_appearanceObserver;
+
+    Qt::ColorScheme m_colorScheme = Qt::ColorScheme::Unknown;
+    void updateColorScheme();
 };
 
 QT_END_NAMESPACE
diff --git a/src/plugins/platforms/cocoa/qcocoatheme.mm b/src/plugins/platforms/cocoa/qcocoatheme.mm
index 594df204..56171b6d 100644
--- a/src/plugins/platforms/cocoa/qcocoatheme.mm
+++ b/src/plugins/platforms/cocoa/qcocoatheme.mm
@@ -94,6 +94,9 @@ static QPalette *qt_mac_createSystemPalette()
     palette->setColor(QPalette::Inactive, QPalette::PlaceholderText, qc);
     palette->setColor(QPalette::Disabled, QPalette::PlaceholderText, qc);
 
+    qc = qt_mac_toQColor([NSColor controlAccentColor]);
+    palette->setColor(QPalette::Accent, qc);
+
     return palette;
 }
 
@@ -221,6 +224,8 @@ QCocoaTheme::QCocoaTheme()
         NSSystemColorsDidChangeNotification, [this] {
             handleSystemThemeChange();
     });
+
+    updateColorScheme();
 }
 
 QCocoaTheme::~QCocoaTheme()
@@ -239,6 +244,9 @@ void QCocoaTheme::reset()
 void QCocoaTheme::handleSystemThemeChange()
 {
     reset();
+
+    updateColorScheme();
+
     m_systemPalette = qt_mac_createSystemPalette();
     m_palettes = qt_mac_createRolePalettes();
 
@@ -472,7 +480,19 @@ QVariant QCocoaTheme::themeHint(ThemeHint hint) const
 
 Qt::ColorScheme QCocoaTheme::colorScheme() const
 {
-    return qt_mac_applicationIsInDarkMode() ? Qt::ColorScheme::Dark : Qt::ColorScheme::Light;
+    return m_colorScheme;
+}
+
+/*
+    Update the theme's color scheme based on the current appearance.
+
+    We can only reference the appearance on the main thread, but the
+    CoreText font engine needs to know the color scheme, and might be
+    used from secondary threads, so we cache the color scheme.
+*/
+void QCocoaTheme::updateColorScheme()
+{
+    m_colorScheme = qt_mac_applicationIsInDarkMode() ? Qt::ColorScheme::Dark : Qt::ColorScheme::Light;
 }
 
 QString QCocoaTheme::standardButtonText(int button) const
diff --git a/src/plugins/platforms/cocoa/qcocoawindow.h b/src/plugins/platforms/cocoa/qcocoawindow.h
index 2fb82f59..ba1bc052 100644
--- a/src/plugins/platforms/cocoa/qcocoawindow.h
+++ b/src/plugins/platforms/cocoa/qcocoawindow.h
@@ -39,9 +39,9 @@ class QDebug;
 // QCocoaWindow
 //
 // QCocoaWindow is an NSView (not an NSWindow!) in the sense
-// that it relies on a NSView for all event handling and
-// graphics output and does not require a NSWindow, except for
-// for the window-related functions like setWindowTitle.
+// that it relies on an NSView for all event handling and
+// graphics output and does not require an NSWindow, except for
+// the window-related functions like setWindowTitle.
 //
 // As a consequence of this it is possible to embed the QCocoaWindow
 // in an NSView hierarchy by getting a pointer to the "backing"
diff --git a/src/plugins/platforms/cocoa/qcocoawindow.mm b/src/plugins/platforms/cocoa/qcocoawindow.mm
index 470b3f46..56322a99 100644
--- a/src/plugins/platforms/cocoa/qcocoawindow.mm
+++ b/src/plugins/platforms/cocoa/qcocoawindow.mm
@@ -174,8 +174,7 @@ QCocoaWindow::~QCocoaWindow()
         object:m_view];
 
     [m_view release];
-    [m_nsWindow close];
-    [m_nsWindow release];
+    [m_nsWindow closeAndRelease];
 }
 
 QSurfaceFormat QCocoaWindow::format() const
diff --git a/src/plugins/platforms/cocoa/qnsview.mm b/src/plugins/platforms/cocoa/qnsview.mm
index bd32d729..1d59a0c0 100644
--- a/src/plugins/platforms/cocoa/qnsview.mm
+++ b/src/plugins/platforms/cocoa/qnsview.mm
@@ -36,13 +36,6 @@
 #include "qcocoaintegration.h"
 #include <QtGui/private/qmacmimeregistry_p.h>
 
-// Private interface
-@interface QNSView ()
-- (BOOL)isTransparentForUserInput;
-@property (assign) NSView* previousSuperview;
-@property (assign) NSWindow* previousWindow;
-@end
-
 @interface QNSView (Drawing) <CALayerDelegate>
 - (void)initDrawing;
 @end
@@ -86,6 +79,19 @@ QT_NAMESPACE_ALIAS_OBJC_CLASS(QNSViewMouseMoveHelper);
 @property (readonly) QObject* focusObject;
 @end
 
+@interface QT_MANGLE_NAMESPACE(QNSViewMenuHelper) : NSObject
+- (instancetype)initWithView:(QNSView *)theView;
+@end
+QT_NAMESPACE_ALIAS_OBJC_CLASS(QNSViewMenuHelper);
+
+// Private interface
+@interface QNSView ()
+- (BOOL)isTransparentForUserInput;
+@property (assign) NSView* previousSuperview;
+@property (assign) NSWindow* previousWindow;
+@property (retain) QNSViewMenuHelper* menuHelper;
+@end
+
 @implementation QNSView {
     QPointer<QCocoaWindow> m_platformWindow;
 
@@ -140,6 +146,8 @@ QT_NAMESPACE_ALIAS_OBJC_CLASS(QNSViewMouseMoveHelper);
         m_sendKeyEvent = false;
         m_currentlyInterpretedKeyEvent = nil;
         m_lastSeenContext = NSDraggingContextWithinApplication;
+
+        self.menuHelper = [[[QNSViewMenuHelper alloc] initWithView:self] autorelease];
     }
     return self;
 }
diff --git a/src/plugins/platforms/cocoa/qnsview_menus.mm b/src/plugins/platforms/cocoa/qnsview_menus.mm
index 644f2139..28409369 100644
--- a/src/plugins/platforms/cocoa/qnsview_menus.mm
+++ b/src/plugins/platforms/cocoa/qnsview_menus.mm
@@ -9,23 +9,55 @@
 #include "qcocoamenu.h"
 #include "qcocoamenubar.h"
 
-static bool selectorIsCutCopyPaste(SEL selector)
+@implementation QNSView (Menus)
+
+// Qt does not (yet) have a mechanism for propagating generic actions,
+// so we can only support actions that originate from a QCocoaNSMenuItem,
+// where we can forward the action by emitting QPlatformMenuItem::activated().
+// But waiting for forwardInvocation to check that the sender is a
+// QCocoaNSMenuItem is too late, as AppKit has at that point chosen
+// our view as the target for the action, and if we can't handle it
+// the action will not propagate up the responder chain as it should.
+// Instead, we hook in early in the process of determining the target
+// via the supplementalTargetForAction API, and if we can support the
+// action we forward it to a helper. The helper must be tied to the
+// view, as the menu validation logic depends on the view's state.
+
+- (id)supplementalTargetForAction:(SEL)action sender:(id)sender
 {
-    return (selector == @selector(cut:)
-            || selector == @selector(copy:)
-            || selector == @selector(paste:)
-            || selector == @selector(selectAll:));
+    qCDebug(lcQpaMenus) << "Resolving action target for" << action << "from" << sender << "via" << self;
+
+    if (qt_objc_cast<QCocoaNSMenuItem *>(sender)) {
+        // The supplemental target must support the selector, but we
+        // determine so dynamically, so check here before continuing.
+        if ([self.menuHelper respondsToSelector:action])
+            return self.menuHelper;
+    } else {
+        qCDebug(lcQpaMenus) << "Ignoring action for menu item we didn't create";
+    }
+
+    return [super supplementalTargetForAction:action sender:sender];
 }
 
-@interface QNSView (Menus)
-- (void)qt_itemFired:(QCocoaNSMenuItem *)item;
 @end
 
-@implementation QNSView (Menus)
+@interface QNSViewMenuHelper ()
+@property (assign) QNSView* view;
+@end
+
+@implementation QNSViewMenuHelper
+
+- (instancetype)initWithView:(QNSView *)theView
+{
+    if ((self = [super init]))
+        self.view = theView;
+
+    return self;
+}
 
 - (BOOL)validateMenuItem:(NSMenuItem*)item
 {
-    qCDebug(lcQpaMenus) << "Validating" << item << "for" << self;
+    qCDebug(lcQpaMenus) << "Validating" << item << "for" << self.view;
 
     auto *nativeItem = qt_objc_cast<QCocoaNSMenuItem *>(item);
     if (!nativeItem)
@@ -53,7 +85,7 @@ static bool selectorIsCutCopyPaste(SEL selector)
         }
 
         if ((!menuWindow || menuWindow->window() != QGuiApplication::modalWindow())
-            && (!menubar || menubar->cocoaWindow() != self.platformWindow))
+            && (!menubar || menubar->cocoaWindow() != self.view.platformWindow))
             return NO;
     }
 
@@ -62,54 +94,42 @@ static bool selectorIsCutCopyPaste(SEL selector)
 
 - (BOOL)respondsToSelector:(SEL)selector
 {
-    // Not exactly true. Both copy: and selectAll: can work on non key views.
-    if (selectorIsCutCopyPaste(selector))
-        return ([NSApp keyWindow] == self.window) && (self.window.firstResponder == self);
+    // See QCocoaMenuItem::resolveTargetAction()
+
+    if (selector == @selector(cut:)
+     || selector == @selector(copy:)
+     || selector == @selector(paste:)
+     || selector == @selector(selectAll:)) {
+        // Not exactly true. Both copy: and selectAll: can work on non key views.
+        return NSApp.keyWindow == self.view.window
+            && self.view.window.firstResponder == self.view;
+    }
+
+    if (selector == @selector(qt_itemFired:))
+        return YES;
 
     return [super respondsToSelector:selector];
 }
 
-- (void)qt_itemFired:(QCocoaNSMenuItem *)item
-{
-    auto *appDelegate = [QCocoaApplicationDelegate sharedDelegate];
-    [appDelegate qt_itemFired:item];
-}
-
 - (NSMethodSignature *)methodSignatureForSelector:(SEL)selector
 {
-    if (selectorIsCutCopyPaste(selector)) {
-        NSMethodSignature *itemFiredSign = [super methodSignatureForSelector:@selector(qt_itemFired:)];
-        return itemFiredSign;
-    }
+    // Double check, in case something has cached that we respond
+    // to the selector, but the result has changed since then.
+    if (![self respondsToSelector:selector])
+        return nil;
 
-    return [super methodSignatureForSelector:selector];
+    auto *appDelegate = [QCocoaApplicationDelegate sharedDelegate];
+    return [appDelegate methodSignatureForSelector:@selector(qt_itemFired:)];
 }
 
 - (void)forwardInvocation:(NSInvocation *)invocation
 {
-    if (selectorIsCutCopyPaste(invocation.selector)) {
-        NSObject *sender;
-        [invocation getArgument:&sender atIndex:2];
-        qCDebug(lcQpaMenus) << "Forwarding" << invocation.selector << "from" << sender;
-
-        // We claim to respond to standard edit actions such as cut/copy/paste,
-        // but these might not be exclusively coming from menu items that we
-        // control. For example, when embedded into a native UI (as a plugin),
-        // the menu items might be part of the host application, and if we're
-        // the first responder, we'll be the target of these actions. As we
-        // don't have a mechanism in Qt to trigger generic actions, we have
-        // to bail out if we don't have a QCocoaNSMenuItem we can activate().
-        // Note that we skip the call to super as well, as that would just
-        // try to invoke the current action on ourselves again.
-        if (auto *nativeItem = qt_objc_cast<QCocoaNSMenuItem *>(sender))
-            [self qt_itemFired:nativeItem];
-        else
-            qCDebug(lcQpaMenus) << "Ignoring action for menu item we didn't create";
-
-        return;
-    }
-
-    [super forwardInvocation:invocation];
+    NSObject *sender;
+    [invocation getArgument:&sender atIndex:2];
+    qCDebug(lcQpaMenus) << "Forwarding" << invocation.selector << "from" << sender;
+    Q_ASSERT(qt_objc_cast<QCocoaNSMenuItem *>(sender));
+    invocation.selector = @selector(qt_itemFired:);
+    [invocation invokeWithTarget:[QCocoaApplicationDelegate sharedDelegate]];
 }
 
 @end
diff --git a/src/plugins/platforms/cocoa/qnsview_mouse.mm b/src/plugins/platforms/cocoa/qnsview_mouse.mm
index 63b18011..2fd57fe6 100644
--- a/src/plugins/platforms/cocoa/qnsview_mouse.mm
+++ b/src/plugins/platforms/cocoa/qnsview_mouse.mm
@@ -221,7 +221,7 @@ static const QPointingDevice *pointingDeviceFor(qint64 deviceID)
     }();
 
     qCInfo(lcQpaMouse) << eventType << "at" << qtWindowPoint << "with" << m_frameStrutButtons << "in" << self.window;
-    QWindowSystemInterface::handleFrameStrutMouseEvent(m_platformWindow->window(),
+    QWindowSystemInterface::handleMouseEvent(m_platformWindow->window(),
         timestamp, qtWindowPoint, qtScreenPoint, m_frameStrutButtons, button, eventType);
 }
 @end
diff --git a/src/plugins/platforms/cocoa/qnswindow.h b/src/plugins/platforms/cocoa/qnswindow.h
index f69e8091..8f842eba 100644
--- a/src/plugins/platforms/cocoa/qnswindow.h
+++ b/src/plugins/platforms/cocoa/qnswindow.h
@@ -36,6 +36,8 @@ QT_FORWARD_DECLARE_CLASS(QCocoaWindow)
 
 typedef NSWindow<QNSWindowProtocol> QCocoaNSWindow;
 
+QCocoaNSWindow *qnswindow_cast(NSWindow *window);
+
 #else
 class QCocoaNSWindow;
 #endif // __OBJC__
diff --git a/src/plugins/platforms/cocoa/qnswindow.mm b/src/plugins/platforms/cocoa/qnswindow.mm
index 6244d5d1..36666c87 100644
--- a/src/plugins/platforms/cocoa/qnswindow.mm
+++ b/src/plugins/platforms/cocoa/qnswindow.mm
@@ -58,6 +58,15 @@ static bool isMouseEvent(NSEvent *ev)
 }
 @end
 
+
+NSWindow<QNSWindowProtocol> *qnswindow_cast(NSWindow *window)
+{
+    if ([window conformsToProtocol:@protocol(QNSWindowProtocol)])
+        return static_cast<QCocoaNSWindow *>(window);
+    else
+        return nil;
+}
+
 @implementation QNSWindow
 #define QNSWINDOW_PROTOCOL_IMPLMENTATION 1
 #include "qnswindow.mm"
@@ -216,6 +225,7 @@ static bool isMouseEvent(NSEvent *ev)
     m_platformWindow->setWindowFilePath(window->filePath()); // Also sets window icon
     m_platformWindow->setWindowState(window->windowState());
     m_platformWindow->setOpacity(window->opacity());
+    m_platformWindow->setVisible(window->isVisible());
 }
 
 - (NSString *)description
diff --git a/src/plugins/platforms/cocoa/qnswindowdelegate.mm b/src/plugins/platforms/cocoa/qnswindowdelegate.mm
index 2d90fbf5..1db77727 100644
--- a/src/plugins/platforms/cocoa/qnswindowdelegate.mm
+++ b/src/plugins/platforms/cocoa/qnswindowdelegate.mm
@@ -23,9 +23,7 @@ static inline bool isWhiteSpace(const QString &s)
 
 static QCocoaWindow *toPlatformWindow(NSWindow *window)
 {
-    if ([window conformsToProtocol:@protocol(QNSWindowProtocol)])
-        return static_cast<QCocoaNSWindow *>(window).platformWindow;
-    return nullptr;
+    return qnswindow_cast(window).platformWindow;
 }
 
 @implementation QNSWindowDelegate
diff --git a/src/plugins/platforms/directfb/qdirectfbconvenience.h b/src/plugins/platforms/directfb/qdirectfbconvenience.h
index c013988f..dc657f38 100644
--- a/src/plugins/platforms/directfb/qdirectfbconvenience.h
+++ b/src/plugins/platforms/directfb/qdirectfbconvenience.h
@@ -62,7 +62,7 @@ template <typename T>
 class QDirectFBPointer : public QScopedPointer<T, QDirectFBInterfaceCleanupHandler<T> >
 {
 public:
-    QDirectFBPointer(T *t = nullptr)
+    Q_NODISCARD_CTOR QDirectFBPointer(T *t = nullptr)
         : QScopedPointer<T, QDirectFBInterfaceCleanupHandler<T> >(t)
     {}
 
diff --git a/src/plugins/platforms/eglfs/CMakeLists.txt b/src/plugins/platforms/eglfs/CMakeLists.txt
index cebb0fe6..58c45e46 100644
--- a/src/plugins/platforms/eglfs/CMakeLists.txt
+++ b/src/plugins/platforms/eglfs/CMakeLists.txt
@@ -34,6 +34,7 @@ qt_internal_add_module(EglFSDeviceIntegrationPrivate
     DEFINES
         QT_BUILD_EGL_DEVICE_LIB
         QT_EGL_NO_X11
+        QT_NO_FOREACH
         EGLFS_PREFERRED_PLUGIN=${QT_QPA_DEFAULT_EGLFS_INTEGRATION}
     INCLUDE_DIRECTORIES
         api
diff --git a/src/plugins/platforms/eglfs/api/qeglfsintegration.cpp b/src/plugins/platforms/eglfs/api/qeglfsintegration.cpp
index 42cbdf12..aafe47ca 100644
--- a/src/plugins/platforms/eglfs/api/qeglfsintegration.cpp
+++ b/src/plugins/platforms/eglfs/api/qeglfsintegration.cpp
@@ -110,7 +110,8 @@ void QEglFSIntegration::initialize()
 
 void QEglFSIntegration::destroy()
 {
-    foreach (QWindow *w, qGuiApp->topLevelWindows())
+    const auto toplevels = qGuiApp->topLevelWindows();
+    for (QWindow *w : toplevels)
         w->destroy();
 
     qt_egl_device_integration()->screenDestroy();
diff --git a/src/plugins/platforms/eglfs/api/qeglfsscreen.cpp b/src/plugins/platforms/eglfs/api/qeglfsscreen.cpp
index 72c4a47d..c5108be0 100644
--- a/src/plugins/platforms/eglfs/api/qeglfsscreen.cpp
+++ b/src/plugins/platforms/eglfs/api/qeglfsscreen.cpp
@@ -189,7 +189,7 @@ QPixmap QEglFSScreen::grabWindow(WId wid, int x, int y, int width, int height) c
         return QPixmap::fromImage(img).copy(x, y, width, height);
     }
 
-    foreach (QOpenGLCompositorWindow *w, windows) {
+    for (QOpenGLCompositorWindow *w : windows) {
         const QWindow *window = w->sourceWindow();
         if (window->winId() == wid) {
             const QRect geom = window->geometry();
diff --git a/src/plugins/platforms/eglfs/deviceintegration/CMakeLists.txt b/src/plugins/platforms/eglfs/deviceintegration/CMakeLists.txt
index d6db1716..bb50216f 100644
--- a/src/plugins/platforms/eglfs/deviceintegration/CMakeLists.txt
+++ b/src/plugins/platforms/eglfs/deviceintegration/CMakeLists.txt
@@ -14,10 +14,10 @@ if(QT_FEATURE_eglfs_egldevice)
     add_subdirectory(eglfs_kms_egldevice)
 endif()
 if(QT_FEATURE_eglfs_vsp2)
-    # add_subdirectory(eglfs_kms_vsp2) # special case TODO
+    # add_subdirectory(eglfs_kms_vsp2) # TODO: QTBUG-112769
 endif()
 if(QT_FEATURE_eglfs_brcm)
-    # add_subdirectory(eglfs_brcm) # special case TODO
+    # add_subdirectory(eglfs_brcm) # TODO: QTBUG-112769
 endif()
 if(QT_FEATURE_eglfs_mali)
     add_subdirectory(eglfs_mali)
@@ -26,7 +26,7 @@ if(QT_FEATURE_eglfs_viv)
     add_subdirectory(eglfs_viv)
 endif()
 if(QT_FEATURE_eglfs_rcar)
-    # add_subdirectory(eglfs_rcar) # special case TODO
+    # add_subdirectory(eglfs_rcar) # TODO: QTBUG-112769
 endif()
 if(QT_FEATURE_eglfs_viv_wl)
     add_subdirectory(eglfs_viv_wl)
diff --git a/src/plugins/platforms/ios/CMakeLists.txt b/src/plugins/platforms/ios/CMakeLists.txt
index 2c0b5e24..37457832 100644
--- a/src/plugins/platforms/ios/CMakeLists.txt
+++ b/src/plugins/platforms/ios/CMakeLists.txt
@@ -7,6 +7,7 @@
 
 qt_internal_add_plugin(QIOSIntegrationPlugin
     OUTPUT_NAME qios
+    STATIC # Force static, even in shared builds
     DEFAULT_IF ${QT_QPA_DEFAULT_PLATFORM} MATCHES ios
     PLUGIN_TYPE platforms
     SOURCES
@@ -33,6 +34,7 @@ qt_internal_add_plugin(QIOSIntegrationPlugin
         ${FWMetal}
         ${FWQuartzCore}
         ${FWUIKit}
+        ${FWCoreGraphics}
         Qt::CorePrivate
         Qt::GuiPrivate
 )
diff --git a/src/plugins/platforms/ios/optional/nsphotolibrarysupport/CMakeLists.txt b/src/plugins/platforms/ios/optional/nsphotolibrarysupport/CMakeLists.txt
index f9146be1..663878bd 100644
--- a/src/plugins/platforms/ios/optional/nsphotolibrarysupport/CMakeLists.txt
+++ b/src/plugins/platforms/ios/optional/nsphotolibrarysupport/CMakeLists.txt
@@ -7,6 +7,7 @@
 
 qt_internal_add_plugin(QIosOptionalPlugin_NSPhotoLibraryPlugin
     OUTPUT_NAME qiosnsphotolibrarysupport
+    STATIC # Force static, even in shared builds
     PLUGIN_TYPE platforms/darwin
     CLASS_NAME QIosOptionalPlugin_NSPhotoLibrary
     DEFAULT_IF FALSE
diff --git a/src/plugins/platforms/ios/qiosintegration.h b/src/plugins/platforms/ios/qiosintegration.h
index 3de1fb4c..a57a707c 100644
--- a/src/plugins/platforms/ios/qiosintegration.h
+++ b/src/plugins/platforms/ios/qiosintegration.h
@@ -31,6 +31,7 @@ public:
     bool hasCapability(Capability cap) const override;
 
     QPlatformWindow *createPlatformWindow(QWindow *window) const override;
+    QPlatformWindow *createForeignWindow(QWindow *window, WId nativeHandle) const override;
     QPlatformBackingStore *createPlatformBackingStore(QWindow *window) const override;
 
 #if QT_CONFIG(opengl)
diff --git a/src/plugins/platforms/ios/qiosintegration.mm b/src/plugins/platforms/ios/qiosintegration.mm
index 27d0f7f2..022b31e0 100644
--- a/src/plugins/platforms/ios/qiosintegration.mm
+++ b/src/plugins/platforms/ios/qiosintegration.mm
@@ -148,6 +148,8 @@ bool QIOSIntegration::hasCapability(Capability cap) const
         return false;
     case ApplicationState:
         return true;
+    case ForeignWindows:
+        return true;
     default:
         return QPlatformIntegration::hasCapability(cap);
     }
@@ -158,6 +160,11 @@ QPlatformWindow *QIOSIntegration::createPlatformWindow(QWindow *window) const
     return new QIOSWindow(window);
 }
 
+QPlatformWindow *QIOSIntegration::createForeignWindow(QWindow *window, WId nativeHandle) const
+{
+    return new QIOSWindow(window, nativeHandle);
+}
+
 QPlatformBackingStore *QIOSIntegration::createPlatformBackingStore(QWindow *window) const
 {
     return new QRhiBackingStore(window);
diff --git a/src/plugins/platforms/ios/qiostheme.mm b/src/plugins/platforms/ios/qiostheme.mm
index fad4a8d5..4126ce8d 100644
--- a/src/plugins/platforms/ios/qiostheme.mm
+++ b/src/plugins/platforms/ios/qiostheme.mm
@@ -69,6 +69,9 @@ void QIOSTheme::initializeSystemPalette()
 
     s_systemPalette.setBrush(QPalette::Highlight, QColor(11, 70, 150, 60));
     s_systemPalette.setBrush(QPalette::HighlightedText, qt_mac_toQBrush(UIColor.labelColor.CGColor));
+
+    if (@available(ios 15.0, *))
+        s_systemPalette.setBrush(QPalette::Accent, qt_mac_toQBrush(UIColor.tintColor.CGColor));
 }
 
 const QPalette *QIOSTheme::palette(QPlatformTheme::Palette type) const
diff --git a/src/plugins/platforms/ios/qiosviewcontroller.mm b/src/plugins/platforms/ios/qiosviewcontroller.mm
index 6f157353..c4e89682 100644
--- a/src/plugins/platforms/ios/qiosviewcontroller.mm
+++ b/src/plugins/platforms/ios/qiosviewcontroller.mm
@@ -107,11 +107,8 @@
 {
     Q_UNUSED(subview);
 
+    Q_ASSERT(self.window);
     UIWindow *uiWindow = self.window;
-    // uiWindow can be null when closing from the ios "app manager" and the app is
-    // showing a native window like UIDocumentBrowserViewController
-    if (!uiWindow)
-        return;
 
     if (uiWindow.screen != [UIScreen mainScreen] && self.subviews.count == 1) {
         // We're about to remove the last view of an external screen, so go back
diff --git a/src/plugins/platforms/ios/qioswindow.h b/src/plugins/platforms/ios/qioswindow.h
index 90380e4b..762a31af 100644
--- a/src/plugins/platforms/ios/qioswindow.h
+++ b/src/plugins/platforms/ios/qioswindow.h
@@ -21,7 +21,7 @@ class QIOSWindow : public QObject, public QPlatformWindow
     Q_OBJECT
 
 public:
-    explicit QIOSWindow(QWindow *window);
+    explicit QIOSWindow(QWindow *window, WId nativeHandle = 0);
     ~QIOSWindow();
 
     void setGeometry(const QRect &rect) override;
@@ -56,6 +56,8 @@ public:
 
     void requestUpdate() override;
 
+    void setMask(const QRegion &region) override;
+
 #if QT_CONFIG(opengl)
     CAEAGLLayer *eaglLayer() const;
 #endif
@@ -64,7 +66,7 @@ private:
     void applicationStateChanged(Qt::ApplicationState state);
     void applyGeometry(const QRect &rect);
 
-    QUIView *m_view;
+    UIView *m_view;
 
     QRect m_normalGeometry;
     int m_windowLevel;
@@ -80,6 +82,8 @@ private:
 QDebug operator<<(QDebug debug, const QIOSWindow *window);
 #endif
 
+QT_MANGLE_NAMESPACE(QUIView) *quiview_cast(UIView *view);
+
 QT_END_NAMESPACE
 
 #endif // QIOSWINDOW_H
diff --git a/src/plugins/platforms/ios/qioswindow.mm b/src/plugins/platforms/ios/qioswindow.mm
index 8de09453..3f1a15f8 100644
--- a/src/plugins/platforms/ios/qioswindow.mm
+++ b/src/plugins/platforms/ios/qioswindow.mm
@@ -11,7 +11,10 @@
 #include "quiview.h"
 #include "qiosinputcontext.h"
 
+#include <QtCore/private/qcore_mac_p.h>
+
 #include <QtGui/private/qwindow_p.h>
+#include <QtGui/private/qhighdpiscaling_p.h>
 #include <qpa/qplatformintegration.h>
 
 #if QT_CONFIG(opengl)
@@ -26,19 +29,24 @@
 
 QT_BEGIN_NAMESPACE
 
-QIOSWindow::QIOSWindow(QWindow *window)
+QIOSWindow::QIOSWindow(QWindow *window, WId nativeHandle)
     : QPlatformWindow(window)
     , m_windowLevel(0)
 {
+    if (nativeHandle) {
+        m_view = reinterpret_cast<UIView *>(nativeHandle);
+        [m_view retain];
+    } else {
 #ifdef Q_OS_IOS
-    if (window->surfaceType() == QSurface::RasterSurface)
-        window->setSurfaceType(QSurface::MetalSurface);
+        if (window->surfaceType() == QSurface::RasterSurface)
+            window->setSurfaceType(QSurface::MetalSurface);
 
-    if (window->surfaceType() == QSurface::MetalSurface)
-        m_view = [[QUIMetalView alloc] initWithQIOSWindow:this];
-    else
+        if (window->surfaceType() == QSurface::MetalSurface)
+            m_view = [[QUIMetalView alloc] initWithQIOSWindow:this];
+        else
 #endif
-        m_view = [[QUIView alloc] initWithQIOSWindow:this];
+            m_view = [[QUIView alloc] initWithQIOSWindow:this];
+    }
 
     connect(qGuiApp, &QGuiApplication::applicationStateChanged, this, &QIOSWindow::applicationStateChanged);
 
@@ -54,6 +62,7 @@ QIOSWindow::QIOSWindow(QWindow *window)
 
     setWindowState(window->windowStates());
     setOpacity(window->opacity());
+    setMask(QHighDpi::toNativeLocalRegion(window->mask(), window));
 
     Qt::ScreenOrientation initialOrientation = window->contentOrientation();
     if (initialOrientation != Qt::PrimaryOrientation) {
@@ -76,7 +85,7 @@ QIOSWindow::~QIOSWindow()
 
     clearAccessibleCache();
 
-    m_view.platformWindow = 0;
+    quiview_cast(m_view).platformWindow = 0;
     [m_view removeFromSuperview];
     [m_view release];
 }
@@ -116,7 +125,7 @@ void QIOSWindow::setVisible(bool visible)
     if (visible && shouldAutoActivateWindow()) {
         if (!window()->property("_q_showWithoutActivating").toBool())
             requestActivateWindow();
-    } else if (!visible && [m_view isActiveWindow]) {
+    } else if (!visible && [quiview_cast(m_view) isActiveWindow]) {
         // Our window was active/focus window but now hidden, so relinquish
         // focus to the next possible window in the stack.
         NSArray<UIView *> *subviews = m_view.viewController.view.subviews;
@@ -336,8 +345,11 @@ void QIOSWindow::handleContentOrientationChange(Qt::ScreenOrientation orientatio
 
 void QIOSWindow::applicationStateChanged(Qt::ApplicationState)
 {
+    if (isForeignWindow())
+        return;
+
     if (window()->isExposed() != isExposed())
-        [m_view sendUpdatedExposeEvent];
+        [quiview_cast(m_view) sendUpdatedExposeEvent];
 }
 
 qreal QIOSWindow::devicePixelRatio() const
@@ -347,7 +359,10 @@ qreal QIOSWindow::devicePixelRatio() const
 
 void QIOSWindow::clearAccessibleCache()
 {
-    [m_view clearAccessibleCache];
+    if (isForeignWindow())
+        return;
+
+    [quiview_cast(m_view) clearAccessibleCache];
 }
 
 void QIOSWindow::requestUpdate()
@@ -355,6 +370,20 @@ void QIOSWindow::requestUpdate()
     static_cast<QIOSScreen *>(screen())->setUpdatesPaused(false);
 }
 
+void QIOSWindow::setMask(const QRegion &region)
+{
+    if (!region.isEmpty()) {
+        QCFType<CGMutablePathRef> maskPath = CGPathCreateMutable();
+        for (const QRect &r : region)
+            CGPathAddRect(maskPath, nullptr, r.toCGRect());
+        CAShapeLayer *maskLayer = [CAShapeLayer layer];
+        maskLayer.path = maskPath;
+        m_view.layer.mask = maskLayer;
+    } else {
+        m_view.layer.mask = nil;
+    }
+}
+
 #if QT_CONFIG(opengl)
 CAEAGLLayer *QIOSWindow::eaglLayer() const
 {
@@ -376,6 +405,27 @@ QDebug operator<<(QDebug debug, const QIOSWindow *window)
 }
 #endif // !QT_NO_DEBUG_STREAM
 
+/*!
+    Returns the view cast to a QUIview if possible.
+
+    If the view is not a QUIview, nil is returned, which is safe to
+    send messages to, effectively making [quiview_cast(view) message]
+    a no-op.
+
+    For extra verbosity and clearer code, please consider checking
+    that the platform window is not a foreign window before using
+    this cast, via QPlatformWindow::isForeignWindow().
+
+    Do not use this method solely to check for foreign windows, as
+    that will make the code harder to read for people not working
+    primarily on iOS, who do not know the difference between the
+    UIView and QUIView cases.
+*/
+QUIView *quiview_cast(UIView *view)
+{
+    return qt_objc_cast<QUIView *>(view);
+}
+
 QT_END_NAMESPACE
 
 #include "moc_qioswindow.cpp"
diff --git a/src/plugins/platforms/wasm/CMakeLists.txt b/src/plugins/platforms/wasm/CMakeLists.txt
index deedf243..d7c96afd 100644
--- a/src/plugins/platforms/wasm/CMakeLists.txt
+++ b/src/plugins/platforms/wasm/CMakeLists.txt
@@ -29,7 +29,6 @@ qt_internal_add_plugin(QWasmIntegrationPlugin
         qwasmplatform.cpp qwasmplatform.h
         qwasmscreen.cpp qwasmscreen.h
         qwasmservices.cpp qwasmservices.h
-        qwasmstring.cpp qwasmstring.h
         qwasmtheme.cpp qwasmtheme.h
         qwasmwindow.cpp qwasmwindow.h
         qwasmwindowclientarea.cpp qwasmwindowclientarea.h
diff --git a/src/plugins/platforms/wasm/qtloader.js b/src/plugins/platforms/wasm/qtloader.js
index e0f78646..4b6cee80 100644
--- a/src/plugins/platforms/wasm/qtloader.js
+++ b/src/plugins/platforms/wasm/qtloader.js
@@ -1,588 +1,275 @@
-// Copyright (C) 2018 The Qt Company Ltd.
+// Copyright (C) 2023 The Qt Company Ltd.
 // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only
 
-// QtLoader provides javascript API for managing Qt application modules.
-//
-// QtLoader provides API on top of Emscripten which supports common lifecycle
-// tasks such as displaying placeholder content while the module downloads,
-// handing application exits, and checking for browser wasm support.
-//
-// There are two usage modes:
-//  * Managed:  QtLoader owns and manages the HTML display elements like
-//              the loader and canvas.
-//  * External: The embedding HTML page owns the display elements. QtLoader
-//              provides event callbacks which the page reacts to.
-//
-// Managed mode usage:
-//
-//     var config = {
-//         containerElements : [$("container-id")];
-//     }
-//     var qtLoader = new QtLoader(config);
-//     qtLoader.loadEmscriptenModule("applicationName");
-//
-// External mode usage:
-//
-//    var config = {
-//        canvasElements : [$("canvas-id")],
-//        showLoader: function() {
-//            loader.style.display = 'block'
-//            canvas.style.display = 'hidden'
-//        },
-//        showCanvas: function() {
-//            loader.style.display = 'hidden'
-//            canvas.style.display = 'block'
-//            return canvas;
-//        }
-//     }
-//     var qtLoader = new QtLoader(config);
-//     qtLoader.loadEmscriptenModule("applicationName");
-//
-// Config keys
-//
-//  moduleConfig : {}
-//      Emscripten module configuration
-//  containerElements : [container-element, ...]
-//      One or more HTML elements. QtLoader will display loader elements
-//      on these while loading the application, and replace the loader with a
-//      canvas on load complete.
-//  canvasElements : [canvas-element, ...]
-//      One or more canvas elements.
-//  showLoader : function(status, containerElement)
-//      Optional loading element constructor function. Implement to create
-//      a custom loading screen. This function may be called multiple times,
-//      while preparing the application binary. "status" is a string
-//      containing the loading sub-status, and may be either "Downloading",
-//      or "Compiling". The browser may be using streaming compilation, in
-//      which case the wasm module is compiled during downloading and the
-//      there is no separate compile step.
-//  showCanvas : function(containerElement)
-//      Optional canvas constructor function. Implement to create custom
-//      canvas elements.
-//  showExit : function(crashed, exitCode, containerElement)
-//      Optional exited element constructor function.
-//  showError : function(crashed, exitCode, containerElement)
-//      Optional error element constructor function.
-//  statusChanged : function(newStatus)
-//      Optional callback called when the status of the app has changed
-//
-//  path : <string>
-//      Prefix path for wasm file, realative to the loading HMTL file.
-//  restartMode : "DoNotRestart", "RestartOnExit", "RestartOnCrash"
-//      Controls whether the application should be reloaded on exits. The default is "DoNotRestart"
-//  restartType : "RestartModule", "ReloadPage"
-//  restartLimit : <int>
-//     Restart attempts limit. The default is 10.
-//  stdoutEnabled : <bool>
-//  stderrEnabled : <bool>
-//  environment : <object>
-//     key-value environment variable pairs.
-//
-// QtLoader object API
-//
-// webAssemblySupported : bool
-// webGLSupported : bool
-// canLoadQt : bool
-//      Reports if WebAssembly and WebGL are supported. These are requirements for
-//      running Qt applications.
-// loadEmscriptenModule(applicationName)
-//      Loads the application from the given emscripten javascript module file and wasm file
-// status
-//      One of "Created", "Loading", "Running", "Exited".
-// crashed
-//      Set to true if there was an unclean exit.
-// exitCode
-//      main()/emscripten_force_exit() return code. Valid on status change to
-//      "Exited", iff crashed is false.
-// exitText
-//      Abort/exit message.
-// addCanvasElement
-//      Add canvas at run-time. Adds a corresponding QScreen,
-// removeCanvasElement
-//      Remove canvas at run-time. Removes the corresponding QScreen.
-// resizeCanvasElement
-//      Signals to the application that a canvas has been resized.
-// setFontDpi
-//      Sets the logical font dpi for the application.
-// module
-//      Returns the Emscripten module object, or undefined if the module
-//      has not been created yet. Note that the module object becomes available
-//      at the very end of the loading sequence, _after_ the transition from
-//      Loading to Running occurs.
-
-
-// Forces the use of constructor on QtLoader instance.
-// This passthrough makes both the old-style:
-//
-//   const loader = QtLoader(config);
-//
-// and the new-style:
-//
-//   const loader = new QtLoader(config);
-//
-// instantiation types work.
-function QtLoader(config)
+/**
+ * Loads the instance of a WASM module.
+ *
+ * @param config May contain any key normally accepted by emscripten and the 'qt' extra key, with
+ *               the following sub-keys:
+ * - environment: { [name:string] : string }
+ *      environment variables set on the instance
+ * - onExit: (exitStatus: { text: string, code?: number, crashed: bool }) => void
+ *      called when the application has exited for any reason. There are two cases:
+ *      aborted: crashed is true, text contains an error message.
+ *      exited: crashed is false, code contians the exit code.
+ *
+ *      Note that by default Emscripten does not exit when main() returns. This behavior
+ *      is controlled by the EXIT_RUNTIME linker flag; set "-s EXIT_RUNTIME=1" to make
+ *      Emscripten tear down the runtime and exit when main() returns.
+ *
+ * - containerElements: HTMLDivElement[]
+ *      Array of host elements for Qt screens. Each of these elements is mapped to a QScreen on
+ *      launch.
+ * - fontDpi: number
+ *      Specifies font DPI for the instance
+ * - onLoaded: () => void
+ *      Called when the module has loaded.
+ * - entryFunction: (emscriptenConfig: object) => Promise<EmscriptenModule>
+ *      Qt always uses emscripten's MODULARIZE option. This is the MODULARIZE entry function.
+ * - module: Promise<WebAssembly.Module>
+ *      The module to create the instance from (optional). Specifying the module allows optimizing
+ *      use cases where several instances are created from a single WebAssembly source.
+ * - qtdir: string
+ *      Path to Qt installation. This path will be used for loading Qt shared libraries and plugins.
+ *      The path is set to 'qt' by default, and is relative to the path of the web page's html file.
+ *      This property is not in use when static linking is used, since this build mode includes all
+ *      libraries and plugins in the wasm file.
+ * - preload: [string]: Array of file paths to json-encoded files which specifying which files to preload.
+ *      The preloaded files will be downloaded at application startup and copied to the in-memory file
+ *      system provided by Emscripten.
+ *
+ *      Each json file must contain an array of source, destination objects:
+ *      [
+ *           {
+ *               "source": "path/to/source",
+ *               "destination": "/path/to/destination"
+ *           },
+ *           ...
+ *      ]
+ *      The source path is relative to the html file path. The destination path must be
+ *      an absolute path.
+ *
+ *      $QTDIR may be used as a placeholder for the "qtdir" configuration property (see @qtdir), for instance:
+ *          "source": "$QTDIR/plugins/imageformats/libqjpeg.so"
+ *
+ * @return Promise<{
+ *             instance: EmscriptenModule,
+ *             exitStatus?: { text: string, code?: number, crashed: bool }
+ *         }>
+ *      The promise is resolved when the module has been instantiated and its main function has been
+ *      called. The returned exitStatus is defined if the application crashed or exited immediately
+ *      after its entry function has been called. Otherwise, config.onExit will get called at a
+ *      later time when (and if) the application exits.
+ *
+ * @see https://github.com/DefinitelyTyped/DefinitelyTyped/blob/master/types/emscripten for
+ *      EmscriptenModule
+ */
+async function qtLoad(config)
 {
-    return new _QtLoader(config);
+    const throwIfEnvUsedButNotExported = (instance, config) =>
+    {
+        const environment = config.environment;
+        if (!environment || Object.keys(environment).length === 0)
+            return;
+        const isEnvExported = typeof instance.ENV === 'object';
+        if (!isEnvExported)
+            throw new Error('ENV must be exported if environment variables are passed');
+    };
+
+    const throwIfFsUsedButNotExported = (instance, config) =>
+    {
+        const environment = config.environment;
+        if (!environment || Object.keys(environment).length === 0)
+            return;
+        const isFsExported = typeof instance.FS === 'object';
+        if (!isFsExported)
+            throw new Error('FS must be exported if preload is used');
+    };
+
+    if (typeof config !== 'object')
+        throw new Error('config is required, expected an object');
+    if (typeof config.qt !== 'object')
+        throw new Error('config.qt is required, expected an object');
+    if (typeof config.qt.entryFunction !== 'function')
+        config.qt.entryFunction = window.createQtAppInstance;
+
+    config.qt.qtdir ??= 'qt';
+    config.qt.preload ??= [];
+
+    config.qtContainerElements = config.qt.containerElements;
+    delete config.qt.containerElements;
+    config.qtFontDpi = config.qt.fontDpi;
+    delete config.qt.fontDpi;
+
+    // Used for rejecting a failed load's promise where emscripten itself does not allow it,
+    // like in instantiateWasm below. This allows us to throw in case of a load error instead of
+    // hanging on a promise to entry function, which emscripten unfortunately does.
+    let circuitBreakerReject;
+    const circuitBreaker = new Promise((_, reject) => { circuitBreakerReject = reject; });
+
+    // If module async getter is present, use it so that module reuse is possible.
+    if (config.qt.module) {
+        config.instantiateWasm = async (imports, successCallback) =>
+        {
+            try {
+                const module = await config.qt.module;
+                successCallback(
+                    await WebAssembly.instantiate(module, imports), module);
+            } catch (e) {
+                circuitBreakerReject(e);
+            }
+        }
+    }
+
+    const originalPreRun = config.preRun;
+    config.preRun = instance =>
+    {
+        originalPreRun?.();
+
+        throwIfEnvUsedButNotExported(instance, config);
+        for (const [name, value] of Object.entries(config.qt.environment ?? {}))
+            instance.ENV[name] = value;
+
+        const makeDirs = (FS, filePath) => {
+            const parts = filePath.split("/");
+            let path = "/";
+            for (let i = 0; i < parts.length - 1; ++i) {
+                const part = parts[i];
+                if (part == "")
+                    continue;
+                path += part + "/";
+                try {
+                    FS.mkdir(path);
+                } catch (error) {
+                    const EEXIST = 20;
+                    if (error.errno != EEXIST)
+                        throw error;
+                }
+            }
+        }
+
+        throwIfFsUsedButNotExported(instance, config);
+        for ({destination, data} of self.preloadData) {
+            makeDirs(instance.FS, destination);
+            instance.FS.writeFile(destination, new Uint8Array(data));
+        }
+    };
+
+    config.onRuntimeInitialized = () => config.qt.onLoaded?.();
+
+    const originalLocateFile = config.locateFile;
+    config.locateFile = filename =>
+    {
+        const originalLocatedFilename = originalLocateFile ? originalLocateFile(filename) : filename;
+        if (originalLocatedFilename.startsWith('libQt6'))
+            return `${config.qt.qtdir}/lib/${originalLocatedFilename}`;
+        return originalLocatedFilename;
+    }
+
+    const originalOnExit = config.onExit;
+    config.onExit = code => {
+        originalOnExit?.();
+        config.qt.onExit?.({
+            code,
+            crashed: false
+        });
+    }
+
+    const originalOnAbort = config.onAbort;
+    config.onAbort = text =>
+    {
+        originalOnAbort?.();
+
+        aborted = true;
+        config.qt.onExit?.({
+            text,
+            crashed: true
+        });
+    };
+
+    const fetchPreloadFiles = async () => {
+        const fetchJson = async path => (await fetch(path)).json();
+        const fetchArrayBuffer = async path => (await fetch(path)).arrayBuffer();
+        const loadFiles = async (paths) => {
+            const source = paths['source'].replace('$QTDIR', config.qt.qtdir);
+            return {
+                destination: paths['destination'],
+                data: await fetchArrayBuffer(source)
+            };
+        }
+        const fileList = (await Promise.all(config.qt.preload.map(fetchJson))).flat();
+        self.preloadData = (await Promise.all(fileList.map(loadFiles))).flat();
+    }
+
+    await fetchPreloadFiles();
+
+    // Call app/emscripten module entry function. It may either come from the emscripten
+    // runtime script or be customized as needed.
+    let instance;
+    try {
+        instance = await Promise.race(
+            [circuitBreaker, config.qt.entryFunction(config)]);
+    } catch (e) {
+        config.qt.onExit?.({
+            text: e.message,
+            crashed: true
+        });
+        throw e;
+    }
+
+    return instance;
 }
 
-function _QtLoader(config)
-{
-    const self = this;
+// Compatibility API. This API is deprecated,
+// and will be removed in a future version of Qt.
+function QtLoader(qtConfig) {
 
-    // The Emscripten module and module configuration object. The module
-    // object is created in completeLoadEmscriptenModule().
-    self.module = undefined;
-    self.moduleConfig = config.moduleConfig || {};
+    const warning = 'Warning: The QtLoader API is deprecated and will be removed in ' +
+                    'a future version of Qt. Please port to the new qtLoad() API.';
+    console.warn(warning);
 
-    // Qt properties. These are propagated to the Emscripten module after
-    // it has been created.
-    self.qtContainerElements = undefined;
-    self.qtFontDpi = 96;
-
-    function webAssemblySupported() {
-        return typeof WebAssembly !== "undefined"
-    }
-
-    function webGLSupported() {
-        // We expect that WebGL is supported if WebAssembly is; however
-        // the GPU may be blacklisted.
-        try {
-            var canvas = document.createElement("canvas");
-            return !!(window.WebGLRenderingContext && (canvas.getContext("webgl") || canvas.getContext("experimental-webgl")));
-        } catch (e) {
-            return false;
-        }
-    }
-
-    function canLoadQt() {
-        // The current Qt implementation requires WebAssembly (asm.js is not in use),
-        // and also WebGL (there is no raster fallback).
-        return webAssemblySupported() && webGLSupported();
-    }
-
-    function removeChildren(element) {
-        while (element.firstChild) element.removeChild(element.firstChild);
-    }
-
-    // Set default state handler functions
-    if (config.containerElements !== undefined) {
-        config.showError = config.showError || function(errorText, container) {
-            removeChildren(container);
-            var errorTextElement = document.createElement("text");
-            errorTextElement.className = "QtError"
-            errorTextElement.innerHTML = errorText;
-            return errorTextElement;
-        }
-
-        config.showLoader = config.showLoader || function(loadingState, container) {
-            removeChildren(container);
-            var loadingText = document.createElement("text");
-            loadingText.className = "QtLoading"
-            loadingText.innerHTML = "<p><center>" + loadingState + "</center><p>";
-            return loadingText;
-        };
-
-        config.showCanvas = config.showCanvas || function(canvas, container) {
-            removeChildren(container);
-        }
-
-        config.showExit = config.showExit || function(crashed, exitCode, container) {
-            if (!crashed)
-                return undefined;
-
-            removeChildren(container);
-            var fontSize = 54;
-            var crashSymbols = ["\u{1F615}", "\u{1F614}", "\u{1F644}", "\u{1F928}", "\u{1F62C}",
-                                "\u{1F915}", "\u{2639}", "\u{1F62E}", "\u{1F61E}", "\u{1F633}"];
-            var symbolIndex = Math.floor(Math.random() * crashSymbols.length);
-            var errorHtml = `<font size='${fontSize}'> ${crashSymbols[symbolIndex]} </font>`
-            var errorElement = document.createElement("text");
-            errorElement.className = "QtExit"
-            errorElement.innerHTML = errorHtml;
-            return errorElement;
-        }
+    let emscriptenConfig = qtConfig.moduleConfig || {}
+    qtConfig.moduleConfig = undefined;
+    const showLoader = qtConfig.showLoader;
+    qtConfig.showLoader = undefined;
+    const showError = qtConfig.showError;
+    qtConfig.showError = undefined;
+    const showExit = qtConfig.showExit;
+    qtConfig.showExit = undefined;
+    const showCanvas = qtConfig.showCanvas;
+    qtConfig.showCanvas = undefined;
+    if (qtConfig.canvasElements) {
+        qtConfig.containerElements = qtConfig.canvasElements
+        qtConfig.canvasElements = undefined;
     } else {
-        config.containerElements = config.canvasElements
+        qtConfig.containerElements = qtConfig.containerElements;
+        qtConfig.containerElements = undefined;
     }
+    emscriptenConfig.qt = qtConfig;
 
-    config.restartMode = config.restartMode || "DoNotRestart";
-    config.restartLimit = config.restartLimit || 10;
-
-    if (config.stdoutEnabled === undefined) config.stdoutEnabled = true;
-    if (config.stderrEnabled === undefined) config.stderrEnabled = true;
-
-    // Make sure config.path is defined and ends with "/" if needed
-    if (config.path === undefined)
-        config.path = "";
-    if (config.path.length > 0 && !config.path.endsWith("/"))
-        config.path = config.path.concat("/");
-
-    if (config.environment === undefined)
-        config.environment = {};
-
-    var publicAPI = {};
-    publicAPI.webAssemblySupported = webAssemblySupported();
-    publicAPI.webGLSupported = webGLSupported();
-    publicAPI.canLoadQt = canLoadQt();
-    publicAPI.canLoadApplication = canLoadQt();
-    publicAPI.status = undefined;
-    publicAPI.loadEmscriptenModule = loadEmscriptenModule;
-    publicAPI.addCanvasElement = addCanvasElement;
-    publicAPI.removeCanvasElement = removeCanvasElement;
-    publicAPI.resizeCanvasElement = resizeCanvasElement;
-    publicAPI.setFontDpi = setFontDpi;
-    publicAPI.fontDpi = fontDpi;
-    publicAPI.module = module;
-
-    self.restartCount = 0;
-
-    function handleError(error) {
-        self.error = error;
-        setStatus("Error");
-        console.error(error);
-    }
-
-    function fetchResource(filePath) {
-        var fullPath = config.path + filePath;
-        return fetch(fullPath).then(function(response) {
-            if (!response.ok) {
-                let err = response.status + " " + response.statusText + " " + response.url;
-                handleError(err);
-                return Promise.reject(err)
-            } else {
-                return response;
-            }
-        });
-    }
-
-    function fetchText(filePath) {
-        return fetchResource(filePath).then(function(response) {
-            return response.text();
-        });
-    }
-
-    function fetchThenCompileWasm(response) {
-        return response.arrayBuffer().then(function(data) {
-            self.loaderSubState = "Compiling";
-            setStatus("Loading") // trigger loaderSubState update
-            return WebAssembly.compile(data);
-        });
-    }
-
-    function fetchCompileWasm(filePath) {
-        return fetchResource(filePath).then(function(response) {
-            if (typeof WebAssembly.compileStreaming !== "undefined") {
-                self.loaderSubState = "Downloading/Compiling";
-                setStatus("Loading");
-                return WebAssembly.compileStreaming(response).catch(function(error) {
-                    // compileStreaming may/will fail if the server does not set the correct
-                    // mime type (application/wasm) for the wasm file. Fall back to fetch,
-                    // then compile in this case.
-                    return fetchThenCompileWasm(response);
-                });
-            } else {
-                // Fall back to fetch, then compile if compileStreaming is not supported
-                return fetchThenCompileWasm(response);
-            }
-        });
-    }
-
-    function loadEmscriptenModule(applicationName) {
-
-        // Loading in qtloader.js goes through four steps:
-        // 1) Check prerequisites
-        // 2) Download resources
-        // 3) Configure the emscripten Module object
-        // 4) Start the emcripten runtime, after which emscripten takes over
-
-        // Check for Wasm & WebGL support; set error and return before downloading resources if missing
-        if (!webAssemblySupported()) {
-            handleError("Error: WebAssembly is not supported");
-            return;
-        }
-        if (!webGLSupported()) {
-            handleError("Error: WebGL is not supported");
-            return;
-        }
-
-        // Continue waiting if loadEmscriptenModule() is called again
-        if (publicAPI.status == "Loading")
-            return;
-        self.loaderSubState = "Downloading";
-        setStatus("Loading");
-
-        // Fetch emscripten generated javascript runtime
-        var emscriptenModuleSource = undefined
-        var emscriptenModuleSourcePromise = fetchText(applicationName + ".js").then(function(source) {
-            emscriptenModuleSource = source
-        });
-
-        // Fetch and compile wasm module
-        var wasmModule = undefined;
-        var wasmModulePromise = fetchCompileWasm(applicationName + ".wasm").then(function (module) {
-            wasmModule = module;
-        });
-
-        // Wait for all resources ready
-        Promise.all([emscriptenModuleSourcePromise, wasmModulePromise]).then(function(){
-            completeLoadEmscriptenModule(applicationName, emscriptenModuleSource, wasmModule);
-        }).catch(function(error) {
-            handleError(error);
-            // An error here is fatal, abort
-            self.moduleConfig.onAbort(error)
-        });
-    }
-
-    function completeLoadEmscriptenModule(applicationName, emscriptenModuleSource, wasmModule) {
-
-        // The wasm binary has been compiled into a module during resource download,
-        // and is ready to be instantiated. Define the instantiateWasm callback which
-        // emscripten will call to create the instance.
-        self.moduleConfig.instantiateWasm = function(imports, successCallback) {
-            WebAssembly.instantiate(wasmModule, imports).then(function(instance) {
-                successCallback(instance, wasmModule);
-            }, function(error) {
-                handleError(error)
-            });
-            return {};
-        };
-
-        self.moduleConfig.locateFile = self.moduleConfig.locateFile || function(filename) {
-            return config.path + filename;
-        };
-
-        // Attach status callbacks
-        self.moduleConfig.setStatus = self.moduleConfig.setStatus || function(text) {
-            // Currently the only usable status update from this function
-            // is "Running..."
-            if (text.startsWith("Running"))
-                setStatus("Running");
-        };
-        self.moduleConfig.monitorRunDependencies = self.moduleConfig.monitorRunDependencies || function(left) {
-          //  console.log("monitorRunDependencies " + left)
-        };
-
-        // Attach standard out/err callbacks.
-        self.moduleConfig.print = self.moduleConfig.print || function(text) {
-            if (config.stdoutEnabled)
-                console.log(text)
-        };
-        self.moduleConfig.printErr = self.moduleConfig.printErr || function(text) {
-            if (config.stderrEnabled)
-                console.warn(text)
-        };
-
-        // Error handling: set status to "Exited", update crashed and
-        // exitCode according to exit type.
-        // Emscripten will typically call printErr with the error text
-        // as well. Note that emscripten may also throw exceptions from
-        // async callbacks. These should be handled in window.onerror by user code.
-        self.moduleConfig.onAbort = self.moduleConfig.onAbort || function(text) {
-            publicAPI.crashed = true;
-            publicAPI.exitText = text;
-            setStatus("Exited");
-        };
-        self.moduleConfig.quit = self.moduleConfig.quit || function(code, exception) {
-
-            // Emscripten (and Qt) supports exiting from main() while keeping the app
-            // running. Don't transition into the "Exited" state for clean exits.
-            if (code == 0)
-                return;
-
-            if (exception.name == "ExitStatus") {
-                // Clean exit with code
-                publicAPI.exitText = undefined
-                publicAPI.exitCode = code;
-            } else {
-                publicAPI.exitText = exception.toString();
-                publicAPI.crashed = true;
-                // Print stack trace to console
-                console.log(exception);
-            }
-            setStatus("Exited");
-        };
-
-        self.moduleConfig.preRun = self.moduleConfig.preRun || []
-        self.moduleConfig.preRun.push(function(module) {
-            // Set environment variables
-            for (var [key, value] of Object.entries(config.environment)) {
-                module.ENV[key.toUpperCase()] = value;
-            }
-            // Propagate Qt module properties
-            module.qtContainerElements = self.qtContainerElements;
-            module.qtFontDpi = self.qtFontDpi;
-        });
-
-        self.moduleConfig.mainScriptUrlOrBlob = new Blob([emscriptenModuleSource], {type: 'text/javascript'});
-
-        self.qtContainerElements = config.containerElements;
-
-        config.restart = function() {
-
-            // Restart by reloading the page. This will wipe all state which means
-            // reload loops can't be prevented.
-            if (config.restartType == "ReloadPage") {
-                location.reload();
-            }
-
-            // Restart by readling the emscripten app module.
-            ++self.restartCount;
-            if (self.restartCount > config.restartLimit) {
-                handleError("Error: This application has crashed too many times and has been disabled. Reload the page to try again.");
-                return;
-            }
-            loadEmscriptenModule(applicationName);
-        };
-
-        publicAPI.exitCode = undefined;
-        publicAPI.exitText = undefined;
-        publicAPI.crashed = false;
-
-        // Load the Emscripten application module. This is done by eval()'ing the
-        // javascript runtime generated by Emscripten, and then calling
-        // createQtAppInstance(), which was added to the global scope.
-        eval(emscriptenModuleSource);
-        createQtAppInstance(self.moduleConfig).then(function(module) {
-            self.module = module;
-        });
-    }
-
-    function setErrorContent() {
-        if (config.containerElements === undefined) {
-            if (config.showError !== undefined)
-                config.showError(self.error);
-            return;
-        }
-
-        for (container of config.containerElements) {
-            var errorElement = config.showError(self.error, container);
-            container.appendChild(errorElement);
-        }
-    }
-
-    function setLoaderContent() {
-        if (config.containerElements === undefined) {
-            if (config.showLoader !== undefined)
-                config.showLoader(self.loaderSubState);
-            return;
-        }
-
-        for (container of config.containerElements) {
-            var loaderElement = config.showLoader(self.loaderSubState, container);
-            if (loaderElement !== undefined)
-                container.appendChild(loaderElement);
-        }
-    }
-
-    function setCanvasContent() {
-        if (config.containerElements === undefined) {
-            if (config.showCanvas !== undefined)
-                config.showCanvas();
-            return;
-        }
-
-        for (var i = 0; i < config.containerElements.length; ++i) {
-            var container = config.containerElements[i];
-            var canvas = undefined;
-            if (config.canvasElements !== undefined)
-                canvas = config.canvasElements[i];
-            config.showCanvas(canvas, container);
-        }
-    }
-
-    function setExitContent() {
-
-        // publicAPI.crashed = true;
-
-        if (publicAPI.status != "Exited")
-            return;
-
-        if (config.containerElements === undefined) {
-            if (config.showExit !== undefined)
-                config.showExit(publicAPI.crashed, publicAPI.exitCode);
-            return;
-        }
-
-        if (!publicAPI.crashed)
-            return;
-
-        for (container of config.containerElements) {
-            var loaderElement = config.showExit(publicAPI.crashed, publicAPI.exitCode, container);
-            if (loaderElement !== undefined)
-                container.appendChild(loaderElement);
-        }
-    }
-
-    var committedStatus = undefined;
-    function handleStatusChange() {
-        if (publicAPI.status != "Loading" && committedStatus == publicAPI.status)
-            return;
-        committedStatus = publicAPI.status;
-
-        if (publicAPI.status == "Error") {
-            setErrorContent();
-        } else if (publicAPI.status == "Loading") {
-            setLoaderContent();
-        } else if (publicAPI.status == "Running") {
-            setCanvasContent();
-        } else if (publicAPI.status == "Exited") {
-            if (config.restartMode == "RestartOnExit" ||
-                config.restartMode == "RestartOnCrash" && publicAPI.crashed) {
-                    committedStatus = undefined;
-                    config.restart();
-            } else {
-                setExitContent();
+    let qtloader = {
+        exitCode: undefined,
+        exitText: "",
+        loadEmscriptenModule: _name => {
+            try {
+                qtLoad(emscriptenConfig);
+            } catch (e) {
+                showError?.(e.message);
             }
         }
-
-        // Send status change notification
-        if (config.statusChanged)
-            config.statusChanged(publicAPI.status);
     }
 
-    function setStatus(status) {
-        if (status != "Loading" && publicAPI.status == status)
-            return;
-        publicAPI.status = status;
-
-        window.setTimeout(function() { handleStatusChange(); }, 0);
+    qtConfig.onLoaded = () => {
+        showCanvas?.();
     }
 
-    function addCanvasElement(element) {
-        if (publicAPI.status == "Running")
-            self.module.qtAddContainerElement(element);
-        else
-            console.log("Error: addCanvasElement can only be called in the Running state");
+    qtConfig.onExit = exit => {
+        qtloader.exitCode = exit.code
+        qtloader.exitText = exit.text;
+        showExit?.();
     }
 
-    function removeCanvasElement(element) {
-        if (publicAPI.status == "Running")
-            self.module.qtRemoveContainerElement(element);
-        else
-            console.log("Error: removeCanvasElement can only be called in the Running state");
-    }
+    showLoader?.("Loading");
 
-    function resizeCanvasElement(element) {
-        if (publicAPI.status == "Running")
-            self.module.qtResizeContainerElement(element);
-    }
-
-    function setFontDpi(dpi) {
-        self.qtFontDpi = dpi;
-        if (publicAPI.status == "Running")
-            self.module.qtUpdateDpi();
-    }
-
-    function fontDpi() {
-        return self.qtFontDpi;
-    }
-
-    function module() {
-        return self.module;
-    }
-
-    setStatus("Created");
-
-    return publicAPI;
-}
+    return qtloader;
+};
diff --git a/src/plugins/platforms/wasm/qwasmbackingstore.cpp b/src/plugins/platforms/wasm/qwasmbackingstore.cpp
index e9625928..f6d219db 100644
--- a/src/plugins/platforms/wasm/qwasmbackingstore.cpp
+++ b/src/plugins/platforms/wasm/qwasmbackingstore.cpp
@@ -87,7 +87,8 @@ void QWasmBackingStore::updateTexture(QWasmWindow *window)
             auto imageMemory = emscripten::typed_memory_view(dirtyRect.width() * dirtyRect.height()
                                                                      * BytesPerColor,
                                                              m_image.constScanLine(dirtyRect.y()));
-            m_webImageDataArray["data"].call<void>("set", imageMemory);
+            m_webImageDataArray["data"].call<void>("set", imageMemory,
+                                                   dirtyRect.y() * m_image.width() * BytesPerColor);
         } else {
             // Go through the scanlines manually to set the individual lines in bulk. This is
             // marginally less performant than the above.
@@ -98,11 +99,12 @@ void QWasmBackingStore::updateTexture(QWasmWindow *window)
             // ...............
             for (int r = 0; r < dirtyRect.height(); ++r) {
                 auto scanlineMemory = emscripten::typed_memory_view(
-                        dirtyRect.width() * 4,
-                        m_image.constScanLine(r) + BytesPerColor * dirtyRect.x());
+                        dirtyRect.width() * BytesPerColor,
+                        m_image.constScanLine(r + dirtyRect.y()) + BytesPerColor * dirtyRect.x());
                 m_webImageDataArray["data"].call<void>("set", scanlineMemory,
-                                                       (r * dirtyRect.width() + dirtyRect.x())
-                                                               * BytesPerColor);
+                                                       (dirtyRect.y() + r) * m_image.width()
+                                                                       * BytesPerColor
+                                                               + dirtyRect.x() * BytesPerColor);
             }
         }
     }
diff --git a/src/plugins/platforms/wasm/qwasmclipboard.cpp b/src/plugins/platforms/wasm/qwasmclipboard.cpp
index 1f2e4970..8916a946 100644
--- a/src/plugins/platforms/wasm/qwasmclipboard.cpp
+++ b/src/plugins/platforms/wasm/qwasmclipboard.cpp
@@ -5,7 +5,7 @@
 #include "qwasmdom.h"
 #include "qwasmevent.h"
 #include "qwasmwindow.h"
-#include "qwasmstring.h"
+
 #include <private/qstdweb_p.h>
 
 #include <QCoreApplication>
@@ -26,12 +26,11 @@ static void commonCopyEvent(val event)
 
     // doing it this way seems to sanitize the text better that calling data() like down below
     if (_mimes->hasText()) {
-        event["clipboardData"].call<void>("setData", val("text/plain")
-                                          ,  QWasmString::fromQString(_mimes->text()));
+        event["clipboardData"].call<void>("setData", val("text/plain"),
+                                          _mimes->text().toEcmaString());
     }
     if (_mimes->hasHtml()) {
-        event["clipboardData"].call<void>("setData", val("text/html")
-                                          ,   QWasmString::fromQString(_mimes->html()));
+        event["clipboardData"].call<void>("setData", val("text/html"), _mimes->html().toEcmaString());
     }
 
     for (auto mimetype : _mimes->formats()) {
@@ -39,8 +38,8 @@ static void commonCopyEvent(val event)
             continue;
         QByteArray ba = _mimes->data(mimetype);
         if (!ba.isEmpty())
-            event["clipboardData"].call<void>("setData", QWasmString::fromQString(mimetype)
-                                              , val(ba.constData()));
+            event["clipboardData"].call<void>("setData", mimetype.toEcmaString(),
+                                              val(ba.constData()));
     }
 
     event.call<void>("preventDefault");
@@ -262,12 +261,12 @@ void QWasmClipboard::writeToClipboardApi()
 
         // we have a blob, now create a ClipboardItem
         emscripten::val type = emscripten::val::array();
-        type.set("type", val(QWasmString::fromQString(mimetype)));
+        type.set("type", mimetype.toEcmaString());
 
         emscripten::val contentBlob = emscripten::val::global("Blob").new_(contentArray, type);
 
         emscripten::val clipboardItemObject = emscripten::val::object();
-        clipboardItemObject.set(val(QWasmString::fromQString(mimetype)), contentBlob);
+        clipboardItemObject.set(mimetype.toEcmaString(), contentBlob);
 
         val clipboardItemData = val::global("ClipboardItem").new_(clipboardItemObject);
 
diff --git a/src/plugins/platforms/wasm/qwasmcompositor.cpp b/src/plugins/platforms/wasm/qwasmcompositor.cpp
index 7fcdc196..92e31507 100644
--- a/src/plugins/platforms/wasm/qwasmcompositor.cpp
+++ b/src/plugins/platforms/wasm/qwasmcompositor.cpp
@@ -3,23 +3,23 @@
 
 #include "qwasmcompositor.h"
 #include "qwasmwindow.h"
-#include "qwasmeventdispatcher.h"
-#include "qwasmclipboard.h"
-#include "qwasmevent.h"
-
-#include <QtGui/private/qwindow_p.h>
-
-#include <private/qguiapplication_p.h>
 
 #include <qpa/qwindowsysteminterface.h>
-#include <QtCore/qcoreapplication.h>
-#include <QtGui/qguiapplication.h>
 
-#include <emscripten/bind.h>
+#include <emscripten/html5.h>
 
-using namespace emscripten;
+namespace {
 
-Q_GUI_EXPORT int qt_defaultDpiX();
+QWasmWindowStack::PositionPreference positionPreferenceFromWindowFlags(Qt::WindowFlags flags)
+{
+    if (flags.testFlag(Qt::WindowStaysOnTopHint))
+        return QWasmWindowStack::PositionPreference::StayOnTop;
+    if (flags.testFlag(Qt::WindowStaysOnBottomHint))
+        return QWasmWindowStack::PositionPreference::StayOnBottom;
+    return QWasmWindowStack::PositionPreference::Regular;
+}
+
+} // namespace
 
 QWasmCompositor::QWasmCompositor(QWasmScreen *screen)
     : QObject(screen), m_windowStack(std::bind(&QWasmCompositor::onTopWindowChanged, this))
@@ -32,27 +32,6 @@ QWasmCompositor::~QWasmCompositor()
     if (m_requestAnimationFrameId != -1)
         emscripten_cancel_animation_frame(m_requestAnimationFrameId);
 
-    destroy();
-}
-
-void QWasmCompositor::onScreenDeleting()
-{
-    deregisterEventHandlers();
-}
-
-void QWasmCompositor::deregisterEventHandlers()
-{
-    QByteArray screenElementSelector = screen()->eventTargetId().toUtf8();
-
-    emscripten_set_touchstart_callback(screenElementSelector.constData(), 0, 0, NULL);
-    emscripten_set_touchend_callback(screenElementSelector.constData(), 0, 0, NULL);
-    emscripten_set_touchmove_callback(screenElementSelector.constData(), 0, 0, NULL);
-
-    emscripten_set_touchcancel_callback(screenElementSelector.constData(), 0, 0, NULL);
-}
-
-void QWasmCompositor::destroy()
-{
     // TODO(mikolaj.boc): Investigate if m_isEnabled is needed at all. It seems like a frame should
     // not be generated after this instead.
     m_isEnabled = false; // prevent frame() from creating a new m_context
@@ -60,8 +39,11 @@ void QWasmCompositor::destroy()
 
 void QWasmCompositor::addWindow(QWasmWindow *window)
 {
-    m_windowStack.pushWindow(window);
-    m_windowStack.topWindow()->requestActivateWindow();
+    if (m_windowStack.empty())
+        window->window()->setFlag(Qt::WindowStaysOnBottomHint);
+    m_windowStack.pushWindow(window, positionPreferenceFromWindowFlags(window->window()->flags()));
+    window->requestActivateWindow();
+    setActive(window);
 
     updateEnabledState();
 }
@@ -70,12 +52,27 @@ void QWasmCompositor::removeWindow(QWasmWindow *window)
 {
     m_requestUpdateWindows.remove(window);
     m_windowStack.removeWindow(window);
-    if (m_windowStack.topWindow())
+    if (m_windowStack.topWindow()) {
         m_windowStack.topWindow()->requestActivateWindow();
+        setActive(m_windowStack.topWindow());
+    }
 
     updateEnabledState();
 }
 
+void QWasmCompositor::setActive(QWasmWindow *window)
+{
+    m_activeWindow = window;
+
+    auto it = m_windowStack.begin();
+    if (it == m_windowStack.end()) {
+        return;
+    }
+    for (; it != m_windowStack.end(); ++it) {
+        (*it)->onActivationChanged(*it == m_activeWindow);
+    }
+}
+
 void QWasmCompositor::updateEnabledState()
 {
     m_isEnabled = std::any_of(m_windowStack.begin(), m_windowStack.end(), [](QWasmWindow *window) {
@@ -93,6 +90,11 @@ void QWasmCompositor::lower(QWasmWindow *window)
     m_windowStack.lower(window);
 }
 
+void QWasmCompositor::windowPositionPreferenceChanged(QWasmWindow *window, Qt::WindowFlags flags)
+{
+    m_windowStack.windowPositionPreferenceChanged(window, positionPreferenceFromWindowFlags(flags));
+}
+
 QWindow *QWasmCompositor::windowAt(QPoint targetPointInScreenCoords, int padding) const
 {
     const auto found = std::find_if(
@@ -108,13 +110,7 @@ QWindow *QWasmCompositor::windowAt(QPoint targetPointInScreenCoords, int padding
 
 QWindow *QWasmCompositor::keyWindow() const
 {
-    return m_windowStack.topWindow() ? m_windowStack.topWindow()->window() : nullptr;
-}
-
-void QWasmCompositor::requestUpdateAllWindows()
-{
-    m_requestUpdateAllWindows = true;
-    requestUpdate();
+    return m_activeWindow ? m_activeWindow->window() : nullptr;
 }
 
 void QWasmCompositor::requestUpdateWindow(QWasmWindow *window, UpdateRequestDeliveryType updateType)
@@ -158,29 +154,20 @@ void QWasmCompositor::deliverUpdateRequests()
     // update set.
     auto requestUpdateWindows = m_requestUpdateWindows;
     m_requestUpdateWindows.clear();
-    bool requestUpdateAllWindows = m_requestUpdateAllWindows;
-    m_requestUpdateAllWindows = false;
 
     // Update window content, either all windows or a spesific set of windows. Use the correct
     // update type: QWindow subclasses expect that requested and delivered updateRequests matches
     // exactly.
     m_inDeliverUpdateRequest = true;
-    if (requestUpdateAllWindows) {
-        for (QWasmWindow *window : m_windowStack) {
-            auto it = requestUpdateWindows.find(window);
-            UpdateRequestDeliveryType updateType =
-                (it == m_requestUpdateWindows.end() ? ExposeEventDelivery : it.value());
-            deliverUpdateRequest(window, updateType);
-        }
-    } else {
-        for (auto it = requestUpdateWindows.constBegin(); it != requestUpdateWindows.constEnd(); ++it) {
-            auto *window = it.key();
-            UpdateRequestDeliveryType updateType = it.value();
-            deliverUpdateRequest(window, updateType);
-        }
+
+    for (auto it = requestUpdateWindows.constBegin(); it != requestUpdateWindows.constEnd(); ++it) {
+        auto *window = it.key();
+        UpdateRequestDeliveryType updateType = it.value();
+        deliverUpdateRequest(window, updateType);
     }
+
     m_inDeliverUpdateRequest = false;
-    frame(requestUpdateAllWindows, requestUpdateWindows.keys());
+    frame(requestUpdateWindows.keys());
 }
 
 void QWasmCompositor::deliverUpdateRequest(QWasmWindow *window, UpdateRequestDeliveryType updateType)
@@ -194,7 +181,7 @@ void QWasmCompositor::deliverUpdateRequest(QWasmWindow *window, UpdateRequestDel
     if (updateType == UpdateRequestDelivery) {
         if (qwindow->isExposed() == false)
             QWindowSystemInterface::handleExposeEvent(qwindow, updateRect);
-        window->QPlatformWindow::deliverUpdateRequest();
+        window->deliverUpdateRequest();
     } else {
         QWindowSystemInterface::handleExposeEvent(qwindow, updateRect);
     }
@@ -208,22 +195,12 @@ void QWasmCompositor::handleBackingStoreFlush(QWindow *window)
         requestUpdateWindow(static_cast<QWasmWindow *>(window->handle()));
 }
 
-int dpiScaled(qreal value)
+void QWasmCompositor::frame(const QList<QWasmWindow *> &windows)
 {
-    return value * (qreal(qt_defaultDpiX()) / 96.0);
-}
-
-void QWasmCompositor::frame(bool all, const QList<QWasmWindow *> &windows)
-{
-    if (!m_isEnabled || m_windowStack.empty() || !screen())
+    if (!m_isEnabled || !screen())
         return;
 
-    if (all) {
-        std::for_each(m_windowStack.rbegin(), m_windowStack.rend(),
-                      [](QWasmWindow *window) { window->paint(); });
-    } else {
-        std::for_each(windows.begin(), windows.end(), [](QWasmWindow *window) { window->paint(); });
-    }
+    std::for_each(windows.begin(), windows.end(), [](QWasmWindow *window) { window->paint(); });
 }
 
 void QWasmCompositor::onTopWindowChanged()
@@ -232,16 +209,6 @@ void QWasmCompositor::onTopWindowChanged()
     int z = zOrderForElementInFrontOfScreen;
     std::for_each(m_windowStack.rbegin(), m_windowStack.rend(),
                   [&z](QWasmWindow *window) { window->setZOrder(z++); });
-
-    auto it = m_windowStack.begin();
-    if (it == m_windowStack.end()) {
-        return;
-    }
-    (*it)->onActivationChanged(true);
-    ++it;
-    for (; it != m_windowStack.end(); ++it) {
-        (*it)->onActivationChanged(false);
-    }
 }
 
 QWasmScreen *QWasmCompositor::screen()
diff --git a/src/plugins/platforms/wasm/qwasmcompositor.h b/src/plugins/platforms/wasm/qwasmcompositor.h
index 5b8f22aa..7d3ea52b 100644
--- a/src/plugins/platforms/wasm/qwasmcompositor.h
+++ b/src/plugins/platforms/wasm/qwasmcompositor.h
@@ -7,21 +7,13 @@
 #include "qwasmwindowstack.h"
 
 #include <qpa/qplatformwindow.h>
+
 #include <QMap>
 
-#include <QtGui/qinputdevice.h>
-#include <QtCore/private/qstdweb_p.h>
-
-#include <emscripten/html5.h>
-#include <emscripten/emscripten.h>
-#include <emscripten/bind.h>
-
 QT_BEGIN_NAMESPACE
 
 class QWasmWindow;
 class QWasmScreen;
-class QOpenGLContext;
-class QOpenGLTexture;
 
 class QWasmCompositor final : public QObject
 {
@@ -34,10 +26,10 @@ public:
     void removeWindow(QWasmWindow *window);
 
     void setVisible(QWasmWindow *window, bool visible);
+    void setActive(QWasmWindow *window);
     void raise(QWasmWindow *window);
     void lower(QWasmWindow *window);
-
-    void onScreenDeleting();
+    void windowPositionPreferenceChanged(QWasmWindow *window, Qt::WindowFlags flags);
 
     QWindow *windowAt(QPoint globalPoint, int padding = 0) const;
     QWindow *keyWindow() const;
@@ -45,34 +37,29 @@ public:
     QWasmScreen *screen();
 
     enum UpdateRequestDeliveryType { ExposeEventDelivery, UpdateRequestDelivery };
-    void requestUpdateAllWindows();
+
     void requestUpdateWindow(QWasmWindow *window, UpdateRequestDeliveryType updateType = ExposeEventDelivery);
 
     void handleBackingStoreFlush(QWindow *window);
 
 private:
-    void frame(bool all, const QList<QWasmWindow *> &windows);
+    void frame(const QList<QWasmWindow *> &windows);
 
     void onTopWindowChanged();
 
     void deregisterEventHandlers();
-    void destroy();
 
     void requestUpdate();
     void deliverUpdateRequests();
     void deliverUpdateRequest(QWasmWindow *window, UpdateRequestDeliveryType updateType);
 
-    static int touchCallback(int eventType, const EmscriptenTouchEvent *ev, void *userData);
-
-    bool processTouch(int eventType, const EmscriptenTouchEvent *touchEvent);
-
     void updateEnabledState();
 
     QWasmWindowStack m_windowStack;
+    QWasmWindow *m_activeWindow = nullptr;
 
     bool m_isEnabled = true;
     QMap<QWasmWindow *, UpdateRequestDeliveryType> m_requestUpdateWindows;
-    bool m_requestUpdateAllWindows = false;
     int m_requestAnimationFrameId = -1;
     bool m_inDeliverUpdateRequest = false;
 };
diff --git a/src/plugins/platforms/wasm/qwasmcssstyle.cpp b/src/plugins/platforms/wasm/qwasmcssstyle.cpp
index c0873880..6ac4c8d8 100644
--- a/src/plugins/platforms/wasm/qwasmcssstyle.cpp
+++ b/src/plugins/platforms/wasm/qwasmcssstyle.cpp
@@ -57,7 +57,9 @@ const char *Style = R"css(
     display: none;
 }
 
-.qt-window.has-border:not(.maximized) .resize-outline {
+.qt-window.no-resize > .resize-outline { display: none; }
+
+.qt-window.has-border:not(.maximized):not(.no-resize) .resize-outline {
     display: block;
 }
 
@@ -163,15 +165,15 @@ const char *Style = R"css(
     pointer-events: none;
 }
 
+.title-bar div {
+    pointer-events: none;
+}
+
 .qt-window-a11y-container {
     position: absolute;
     z-index: -1;
 }
 
-.title-bar div {
-    pointer-events: none;
-}
-
 .title-bar .image-button {
     width: 18px;
     height: 18px;
diff --git a/src/plugins/platforms/wasm/qwasmcursor.cpp b/src/plugins/platforms/wasm/qwasmcursor.cpp
index d4bdecb3..b341a31b 100644
--- a/src/plugins/platforms/wasm/qwasmcursor.cpp
+++ b/src/plugins/platforms/wasm/qwasmcursor.cpp
@@ -3,7 +3,6 @@
 
 #include "qwasmcursor.h"
 #include "qwasmscreen.h"
-#include "qwasmstring.h"
 #include "qwasmwindow.h"
 
 #include <QtCore/qdebug.h>
diff --git a/src/plugins/platforms/wasm/qwasmeventdispatcher.cpp b/src/plugins/platforms/wasm/qwasmeventdispatcher.cpp
index 2fd1a304..cd2cefc1 100644
--- a/src/plugins/platforms/wasm/qwasmeventdispatcher.cpp
+++ b/src/plugins/platforms/wasm/qwasmeventdispatcher.cpp
@@ -8,10 +8,11 @@
 QT_BEGIN_NAMESPACE
 
 // Note: All event dispatcher functionality is implemented in QEventDispatcherWasm
-// in QtCore, except for processWindowSystemEvents() below which uses API from QtGui.
-void QWasmEventDispatcher::processWindowSystemEvents(QEventLoop::ProcessEventsFlags flags)
+// in QtCore, except for processPostedEvents() below which uses API from QtGui.
+bool QWasmEventDispatcher::processPostedEvents()
 {
-    QWindowSystemInterface::sendWindowSystemEvents(flags);
+    QEventDispatcherWasm::processPostedEvents();
+    return QWindowSystemInterface::sendWindowSystemEvents(QEventLoop::AllEvents);
 }
 
 QT_END_NAMESPACE
diff --git a/src/plugins/platforms/wasm/qwasmeventdispatcher.h b/src/plugins/platforms/wasm/qwasmeventdispatcher.h
index a28fa726..33d672a5 100644
--- a/src/plugins/platforms/wasm/qwasmeventdispatcher.h
+++ b/src/plugins/platforms/wasm/qwasmeventdispatcher.h
@@ -11,7 +11,7 @@ QT_BEGIN_NAMESPACE
 class QWasmEventDispatcher : public QEventDispatcherWasm
 {
 protected:
-    void processWindowSystemEvents(QEventLoop::ProcessEventsFlags flags) override;
+    bool processPostedEvents() override;
 };
 
 QT_END_NAMESPACE
diff --git a/src/plugins/platforms/wasm/qwasmintegration.cpp b/src/plugins/platforms/wasm/qwasmintegration.cpp
index a4b6aece..b93b8bb6 100644
--- a/src/plugins/platforms/wasm/qwasmintegration.cpp
+++ b/src/plugins/platforms/wasm/qwasmintegration.cpp
@@ -10,8 +10,7 @@
 #include "qwasmaccessibility.h"
 #include "qwasmservices.h"
 #include "qwasmoffscreensurface.h"
-#include "qwasmstring.h"
-
+#include "qwasmplatform.h"
 #include "qwasmwindow.h"
 #include "qwasmbackingstore.h"
 #include "qwasmfontdatabase.h"
@@ -33,18 +32,25 @@
 
 QT_BEGIN_NAMESPACE
 
+extern void qt_set_sequence_auto_mnemonic(bool);
+
 using namespace emscripten;
 
 using namespace Qt::StringLiterals;
 
+static void setContainerElements(emscripten::val elementArray)
+{
+    QWasmIntegration::get()->setContainerElements(elementArray);
+}
+
 static void addContainerElement(emscripten::val element)
 {
-    QWasmIntegration::get()->addScreen(element);
+    QWasmIntegration::get()->addContainerElement(element);
 }
 
 static void removeContainerElement(emscripten::val element)
 {
-    QWasmIntegration::get()->removeScreen(element);
+    QWasmIntegration::get()->removeContainerElement(element);
 }
 
 static void resizeContainerElement(emscripten::val element)
@@ -65,6 +71,7 @@ static void resizeAllScreens(emscripten::val event)
 
 EMSCRIPTEN_BINDINGS(qtQWasmIntegraton)
 {
+    function("qtSetContainerElements", &setContainerElements);
     function("qtAddContainerElement", &addContainerElement);
     function("qtRemoveContainerElement", &removeContainerElement);
     function("qtResizeContainerElement", &resizeContainerElement);
@@ -84,12 +91,16 @@ QWasmIntegration::QWasmIntegration()
 {
     s_instance = this;
 
+    if (platform() == Platform::MacOS)
+        qt_set_sequence_auto_mnemonic(false);
+
     touchPoints = emscripten::val::global("navigator")["maxTouchPoints"].as<int>();
 
     // Create screens for container elements. Each container element will ultimately become a
     // div element. Qt historically supported supplying canvas for screen elements - these elements
     // will be transformed into divs and warnings about deprecation will be printed. See
     // QWasmScreen ctor.
+    emscripten::val filtered = emscripten::val::array();
     emscripten::val qtContainerElements = val::module_property("qtContainerElements");
     if (qtContainerElements.isArray()) {
         for (int i = 0; i < qtContainerElements["length"].as<int>(); ++i) {
@@ -97,13 +108,14 @@ QWasmIntegration::QWasmIntegration()
             if (element.isNull() || element.isUndefined())
                 qWarning() << "Skipping null or undefined element in qtContainerElements";
             else
-                addScreen(element);
+                filtered.call<void>("push", element);
         }
     } else {
         // No screens, which may or may not be intended
         qWarning() << "The qtContainerElements module property was not set or is invalid. "
                       "Proceeding with no screens.";
     }
+    setContainerElements(filtered);
 
     // install browser window resize handler
     emscripten_set_resize_callback(EMSCRIPTEN_EVENT_TARGET_WINDOW, nullptr, EM_TRUE,
@@ -145,7 +157,7 @@ QWasmIntegration::~QWasmIntegration()
 #endif
 
     for (const auto &elementAndScreen : m_screens)
-        elementAndScreen.second->deleteScreen();
+        elementAndScreen.wasmScreen->deleteScreen();
 
     m_screens.clear();
 
@@ -231,10 +243,14 @@ QAbstractEventDispatcher *QWasmIntegration::createEventDispatcher() const
 
 QVariant QWasmIntegration::styleHint(QPlatformIntegration::StyleHint hint) const
 {
-    if (hint == ShowIsFullScreen)
+    switch (hint) {
+    case ShowIsFullScreen:
         return true;
-
-    return QPlatformIntegration::styleHint(hint);
+    case UnderlineShortcut:
+        return platform() != Platform::MacOS;
+    default:
+        return QPlatformIntegration::styleHint(hint);
+    }
 }
 
 Qt::WindowState QWasmIntegration::defaultWindowState(Qt::WindowFlags flags) const
@@ -277,35 +293,93 @@ QPlatformAccessibility *QWasmIntegration::accessibility() const
 }
 #endif
 
-
-void QWasmIntegration::addScreen(const emscripten::val &element)
+void QWasmIntegration::setContainerElements(emscripten::val elementArray)
 {
-    QWasmScreen *screen = new QWasmScreen(element);
-    m_screens.append(qMakePair(element, screen));
-    QWindowSystemInterface::handleScreenAdded(screen);
+    const auto *primaryScreenBefore = m_screens.isEmpty() ? nullptr : m_screens[0].wasmScreen;
+    QList<ScreenMapping> newScreens;
+
+    QList<QWasmScreen *> screensToDelete;
+    std::transform(m_screens.begin(), m_screens.end(), std::back_inserter(screensToDelete),
+                   [](const ScreenMapping &mapping) { return mapping.wasmScreen; });
+
+    for (int i = 0; i < elementArray["length"].as<int>(); ++i) {
+        const auto element = elementArray[i];
+        const auto it = std::find_if(
+                m_screens.begin(), m_screens.end(),
+                [&element](const ScreenMapping &screen) { return screen.emscriptenVal == element; });
+        QWasmScreen *screen;
+        if (it != m_screens.end()) {
+            screen = it->wasmScreen;
+            screensToDelete.erase(std::remove_if(screensToDelete.begin(), screensToDelete.end(),
+                                                [screen](const QWasmScreen *removedScreen) {
+                                                    return removedScreen == screen;
+                                                }),
+                                 screensToDelete.end());
+        } else {
+            screen = new QWasmScreen(element);
+            QWindowSystemInterface::handleScreenAdded(screen);
+        }
+        newScreens.push_back({element, screen});
+    }
+
+    std::for_each(screensToDelete.begin(), screensToDelete.end(),
+                  [](QWasmScreen *removed) { removed->deleteScreen(); });
+
+    m_screens = newScreens;
+    auto *primaryScreenAfter = m_screens.isEmpty() ? nullptr : m_screens[0].wasmScreen;
+    if (primaryScreenAfter && primaryScreenAfter != primaryScreenBefore)
+        QWindowSystemInterface::handlePrimaryScreenChanged(primaryScreenAfter);
 }
 
-void QWasmIntegration::removeScreen(const emscripten::val &element)
+void QWasmIntegration::addContainerElement(emscripten::val element)
 {
-    auto it = std::find_if(m_screens.begin(), m_screens.end(),
-        [&] (const QPair<emscripten::val, QWasmScreen *> &candidate) { return candidate.first.equals(element); });
+    Q_ASSERT_X(m_screens.end()
+                       == std::find_if(m_screens.begin(), m_screens.end(),
+                                       [&element](const ScreenMapping &screen) {
+                                           return screen.emscriptenVal == element;
+                                       }),
+               Q_FUNC_INFO, "Double-add of an element");
+
+    QWasmScreen *screen = new QWasmScreen(element);
+    QWindowSystemInterface::handleScreenAdded(screen);
+    m_screens.push_back({element, screen});
+}
+
+void QWasmIntegration::removeContainerElement(emscripten::val element)
+{
+    const auto *primaryScreenBefore = m_screens.isEmpty() ? nullptr : m_screens[0].wasmScreen;
+
+    const auto it =
+            std::find_if(m_screens.begin(), m_screens.end(),
+                         [&element](const ScreenMapping &screen) { return screen.emscriptenVal == element; });
     if (it == m_screens.end()) {
-        qWarning() << "Attempting to remove non-existing screen for element" << QWasmString::toQString(element["id"]);;
+        qWarning() << "Attempt to remove a nonexistent screen.";
         return;
     }
-    it->second->deleteScreen();
-    m_screens.erase(it);
+
+    QWasmScreen *removedScreen = it->wasmScreen;
+    removedScreen->deleteScreen();
+
+    m_screens.erase(std::remove_if(m_screens.begin(), m_screens.end(),
+                                   [removedScreen](const ScreenMapping &mapping) {
+                                       return removedScreen == mapping.wasmScreen;
+                                   }),
+                    m_screens.end());
+    auto *primaryScreenAfter = m_screens.isEmpty() ? nullptr : m_screens[0].wasmScreen;
+    if (primaryScreenAfter && primaryScreenAfter != primaryScreenBefore)
+        QWindowSystemInterface::handlePrimaryScreenChanged(primaryScreenAfter);
 }
 
 void QWasmIntegration::resizeScreen(const emscripten::val &element)
 {
     auto it = std::find_if(m_screens.begin(), m_screens.end(),
-        [&] (const QPair<emscripten::val, QWasmScreen *> &candidate) { return candidate.first.equals(element); });
+        [&] (const ScreenMapping &candidate) { return candidate.emscriptenVal.equals(element); });
     if (it == m_screens.end()) {
-        qWarning() << "Attempting to resize non-existing screen for element" << QWasmString::toQString(element["id"]);;
+        qWarning() << "Attempting to resize non-existing screen for element"
+                   << QString::fromEcmaString(element["id"]);
         return;
     }
-    it->second->updateQScreenAndCanvasRenderSize();
+    it->wasmScreen->updateQScreenAndCanvasRenderSize();
 }
 
 void QWasmIntegration::updateDpi()
@@ -315,13 +389,13 @@ void QWasmIntegration::updateDpi()
         return;
     qreal dpiValue = dpi.as<qreal>();
     for (const auto &elementAndScreen : m_screens)
-        QWindowSystemInterface::handleScreenLogicalDotsPerInchChange(elementAndScreen.second->screen(), dpiValue, dpiValue);
+        QWindowSystemInterface::handleScreenLogicalDotsPerInchChange(elementAndScreen.wasmScreen->screen(), dpiValue, dpiValue);
 }
 
 void QWasmIntegration::resizeAllScreens()
 {
     for (const auto &elementAndScreen : m_screens)
-        elementAndScreen.second->updateQScreenAndCanvasRenderSize();
+        elementAndScreen.wasmScreen->updateQScreenAndCanvasRenderSize();
 }
 
 quint64 QWasmIntegration::getTimestamp()
diff --git a/src/plugins/platforms/wasm/qwasmintegration.h b/src/plugins/platforms/wasm/qwasmintegration.h
index decf2500..8dfa065d 100644
--- a/src/plugins/platforms/wasm/qwasmintegration.h
+++ b/src/plugins/platforms/wasm/qwasmintegration.h
@@ -70,8 +70,9 @@ public:
     QWasmInputContext *getWasmInputContext() { return m_platformInputContext; }
     static QWasmIntegration *get() { return s_instance; }
 
-    void addScreen(const emscripten::val &canvas);
-    void removeScreen(const emscripten::val &canvas);
+    void setContainerElements(emscripten::val elementArray);
+    void addContainerElement(emscripten::val elementArray);
+    void removeContainerElement(emscripten::val elementArray);
     void resizeScreen(const emscripten::val &canvas);
     void resizeAllScreens();
     void updateDpi();
@@ -81,10 +82,15 @@ public:
     int touchPoints;
 
 private:
+    struct ScreenMapping {
+        emscripten::val emscriptenVal;
+        QWasmScreen *wasmScreen;
+    };
+
     mutable QWasmFontDatabase *m_fontDb;
     mutable QWasmServices *m_desktopServices;
     mutable QHash<QWindow *, QWasmBackingStore *> m_backingStores;
-    QList<QPair<emscripten::val, QWasmScreen *>> m_screens;
+    QList<ScreenMapping> m_screens;
     mutable QWasmClipboard *m_clipboard;
     mutable QWasmAccessibility *m_accessibility;
 
diff --git a/src/plugins/platforms/wasm/qwasmopenglcontext.cpp b/src/plugins/platforms/wasm/qwasmopenglcontext.cpp
index 80e842f8..fe92f34e 100644
--- a/src/plugins/platforms/wasm/qwasmopenglcontext.cpp
+++ b/src/plugins/platforms/wasm/qwasmopenglcontext.cpp
@@ -35,19 +35,10 @@ QWasmOpenGLContext::QWasmOpenGLContext(QOpenGLContext *context)
 
 QWasmOpenGLContext::~QWasmOpenGLContext()
 {
-    if (!m_webGLContext)
-        return;
-
     // Destroy GL context. Work around bug in emscripten_webgl_destroy_context
     // which removes all event handlers on the canvas by temporarily replacing the function
     // that does the removal with a function that does nothing.
-    emscripten::val jsEvents = emscripten::val::module_property("JSEvents");
-    emscripten::val savedRemoveAllHandlersOnTargetFunction =
-            jsEvents["removeAllHandlersOnTarget"];
-    jsEvents.set("removeAllHandlersOnTarget", emscripten::val::module_property("qtDoNothing"));
-    emscripten_webgl_destroy_context(m_webGLContext);
-    jsEvents.set("removeAllHandlersOnTarget", savedRemoveAllHandlersOnTargetFunction);
-    m_webGLContext = 0;
+    destroyWebGLContext(m_ownedWebGLContext.handle);
 }
 
 bool QWasmOpenGLContext::isOpenGLVersionSupported(QSurfaceFormat format)
@@ -60,30 +51,58 @@ bool QWasmOpenGLContext::isOpenGLVersionSupported(QSurfaceFormat format)
            (format.majorVersion() == 3 && format.minorVersion() == 0));
 }
 
-bool QWasmOpenGLContext::maybeCreateEmscriptenContext(QPlatformSurface *surface)
+EMSCRIPTEN_WEBGL_CONTEXT_HANDLE
+QWasmOpenGLContext::obtainEmscriptenContext(QPlatformSurface *surface)
 {
-    if (m_webGLContext && m_surface == surface)
-        return true;
+    if (m_ownedWebGLContext.surface == surface)
+        return m_ownedWebGLContext.handle;
 
-    m_surface = surface;
     if (surface->surface()->surfaceClass() == QSurface::Offscreen) {
         if (const auto *shareContext = m_qGlContext->shareContext()) {
             // Since there are no resource sharing capabilities with WebGL whatsoever, we use the
             // same actual underlaying WebGL context. This is not perfect, but it works in most
             // cases.
-            m_webGLContext =
-                    static_cast<QWasmOpenGLContext *>(shareContext->handle())->m_webGLContext;
+            return static_cast<QWasmOpenGLContext *>(shareContext->handle())
+                    ->m_ownedWebGLContext.handle;
         } else {
-            // The non-shared offscreen context is heavily limited on WASM, but we provide it anyway
-            // for potential pixel readbacks.
-            m_webGLContext = createEmscriptenContext(
-                    static_cast<QWasmOffscreenSurface *>(surface)->id(), m_requestedFormat);
+            // Reuse the existing context for offscreen drawing, even if it happens to be a canvas
+            // context. This is because it is impossible to re-home an existing context to the
+            // new surface and works as an emulation measure.
+            if (m_ownedWebGLContext.handle)
+                return m_ownedWebGLContext.handle;
+
+            //  The non-shared offscreen context is heavily limited on WASM, but we provide it
+            //  anyway for potential pixel readbacks.
+            m_ownedWebGLContext =
+                    QOpenGLContextData{ .surface = surface,
+                                        .handle = createEmscriptenContext(
+                                                static_cast<QWasmOffscreenSurface *>(surface)->id(),
+                                                m_requestedFormat) };
+            return m_ownedWebGLContext.handle;
         }
     } else {
-        m_webGLContext = createEmscriptenContext(
-                static_cast<QWasmWindow *>(surface)->canvasSelector(), m_requestedFormat);
+        destroyWebGLContext(m_ownedWebGLContext.handle);
+
+        // Create a full on-screen context for the window canvas.
+        m_ownedWebGLContext = QOpenGLContextData{
+            .surface = surface,
+            .handle = createEmscriptenContext(static_cast<QWasmWindow *>(surface)->canvasSelector(),
+                                              m_requestedFormat)
+        };
+
+        return m_ownedWebGLContext.handle;
     }
-    return m_webGLContext > 0;
+}
+
+void QWasmOpenGLContext::destroyWebGLContext(EMSCRIPTEN_WEBGL_CONTEXT_HANDLE contextHandle)
+{
+    if (!contextHandle)
+        return;
+    emscripten::val jsEvents = emscripten::val::module_property("JSEvents");
+    emscripten::val savedRemoveAllHandlersOnTargetFunction = jsEvents["removeAllHandlersOnTarget"];
+    jsEvents.set("removeAllHandlersOnTarget", emscripten::val::module_property("qtDoNothing"));
+    emscripten_webgl_destroy_context(contextHandle);
+    jsEvents.set("removeAllHandlersOnTarget", savedRemoveAllHandlersOnTargetFunction);
 }
 
 EMSCRIPTEN_WEBGL_CONTEXT_HANDLE
@@ -124,10 +143,13 @@ GLuint QWasmOpenGLContext::defaultFramebufferObject(QPlatformSurface *surface) c
 
 bool QWasmOpenGLContext::makeCurrent(QPlatformSurface *surface)
 {
-    if (!maybeCreateEmscriptenContext(surface))
+    const auto context = obtainEmscriptenContext(surface);
+    if (!context)
         return false;
 
-    return emscripten_webgl_make_context_current(m_webGLContext) == EMSCRIPTEN_RESULT_SUCCESS;
+    m_usedWebGLContextHandle = context;
+
+    return emscripten_webgl_make_context_current(context) == EMSCRIPTEN_RESULT_SUCCESS;
 }
 
 void QWasmOpenGLContext::swapBuffers(QPlatformSurface *surface)
@@ -153,7 +175,7 @@ bool QWasmOpenGLContext::isValid() const
 
     // Note: we get isValid() calls before we see the surface and can
     // create a native context, so no context is also a valid state.
-    return !m_webGLContext || !emscripten_is_webgl_context_lost(m_webGLContext);
+    return !m_usedWebGLContextHandle || !emscripten_is_webgl_context_lost(m_usedWebGLContextHandle);
 }
 
 QFunctionPointer QWasmOpenGLContext::getProcAddress(const char *procName)
diff --git a/src/plugins/platforms/wasm/qwasmopenglcontext.h b/src/plugins/platforms/wasm/qwasmopenglcontext.h
index 2defc0e2..022d6692 100644
--- a/src/plugins/platforms/wasm/qwasmopenglcontext.h
+++ b/src/plugins/platforms/wasm/qwasmopenglcontext.h
@@ -13,6 +13,7 @@ QT_BEGIN_NAMESPACE
 
 class QOpenGLContext;
 class QPlatformScreen;
+class QPlatformSurface;
 class QWasmOpenGLContext : public QPlatformOpenGLContext
 {
 public:
@@ -29,15 +30,23 @@ public:
     QFunctionPointer getProcAddress(const char *procName) override;
 
 private:
+    struct QOpenGLContextData
+    {
+        QPlatformSurface *surface = nullptr;
+        EMSCRIPTEN_WEBGL_CONTEXT_HANDLE handle = 0;
+    };
+
     static bool isOpenGLVersionSupported(QSurfaceFormat format);
-    bool maybeCreateEmscriptenContext(QPlatformSurface *surface);
+    EMSCRIPTEN_WEBGL_CONTEXT_HANDLE obtainEmscriptenContext(QPlatformSurface *surface);
     static EMSCRIPTEN_WEBGL_CONTEXT_HANDLE
     createEmscriptenContext(const std::string &canvasSelector, QSurfaceFormat format);
 
+    static void destroyWebGLContext(EMSCRIPTEN_WEBGL_CONTEXT_HANDLE contextHandle);
+
     QSurfaceFormat m_requestedFormat;
-    QPlatformSurface *m_surface = nullptr;
     QOpenGLContext *m_qGlContext;
-    EMSCRIPTEN_WEBGL_CONTEXT_HANDLE m_webGLContext = 0;
+    QOpenGLContextData m_ownedWebGLContext;
+    EMSCRIPTEN_WEBGL_CONTEXT_HANDLE m_usedWebGLContextHandle = 0;
 };
 
 QT_END_NAMESPACE
diff --git a/src/plugins/platforms/wasm/qwasmscreen.cpp b/src/plugins/platforms/wasm/qwasmscreen.cpp
index 20dbbebc..e09e942c 100644
--- a/src/plugins/platforms/wasm/qwasmscreen.cpp
+++ b/src/plugins/platforms/wasm/qwasmscreen.cpp
@@ -4,7 +4,6 @@
 #include "qwasmscreen.h"
 
 #include "qwasmcompositor.h"
-#include "qwasmstring.h"
 #include "qwasmcssstyle.h"
 #include "qwasmintegration.h"
 #include "qwasmkeytranslator.h"
@@ -96,7 +95,6 @@ QWasmScreen::~QWasmScreen()
 
 void QWasmScreen::deleteScreen()
 {
-    m_compositor->onScreenDeleting();
     // Deletes |this|!
     QWindowSystemInterface::handleScreenRemoved(this);
 }
@@ -184,7 +182,7 @@ qreal QWasmScreen::devicePixelRatio() const
 
 QString QWasmScreen::name() const
 {
-    return QWasmString::toQString(m_shadowContainer["id"]);
+    return QString::fromEcmaString(m_shadowContainer["id"]);
 }
 
 QPlatformCursor *QWasmScreen::cursor() const
@@ -262,7 +260,6 @@ void QWasmScreen::updateQScreenAndCanvasRenderSize()
     };
 
     setGeometry(QRect(getElementBodyPosition(m_shadowContainer), cssSize.toSize()));
-    m_compositor->requestUpdateAllWindows();
 }
 
 void QWasmScreen::canvasResizeObserverCallback(emscripten::val entries, emscripten::val)
diff --git a/src/plugins/platforms/wasm/qwasmservices.cpp b/src/plugins/platforms/wasm/qwasmservices.cpp
index b9f48090..e767295e 100644
--- a/src/plugins/platforms/wasm/qwasmservices.cpp
+++ b/src/plugins/platforms/wasm/qwasmservices.cpp
@@ -2,7 +2,6 @@
 // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only
 
 #include "qwasmservices.h"
-#include "qwasmstring.h"
 
 #include <QtCore/QUrl>
 #include <QtCore/QDebug>
@@ -13,8 +12,8 @@ QT_BEGIN_NAMESPACE
 
 bool QWasmServices::openUrl(const QUrl &url)
 {
-    emscripten::val jsUrl = QWasmString::fromQString(url.toString());
-    emscripten::val::global("window").call<void>("open", jsUrl, emscripten::val("_blank"));
+    emscripten::val::global("window").call<void>("open", url.toString().toEcmaString(),
+                                                 emscripten::val("_blank"));
     return true;
 }
 
diff --git a/src/plugins/platforms/wasm/qwasmstring.cpp b/src/plugins/platforms/wasm/qwasmstring.cpp
deleted file mode 100644
index 3de84afe..00000000
--- a/src/plugins/platforms/wasm/qwasmstring.cpp
+++ /dev/null
@@ -1,36 +0,0 @@
-// Copyright (C) 2020 The Qt Company Ltd.
-// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only
-
-#include "qwasmstring.h"
-
-QT_BEGIN_NAMESPACE
-
-using namespace emscripten;
-
-val QWasmString::fromQString(const QString &str)
-{
-    static const val UTF16ToString(
-        val::module_property("UTF16ToString"));
-
-    auto ptr = quintptr(str.utf16());
-    return UTF16ToString(val(ptr));
-}
-
-QString QWasmString::toQString(const val &v)
-{
-    QString result;
-    if (!v.isString())
-        return result;
-
-    static const val stringToUTF16(
-        val::module_property("stringToUTF16"));
-    static const val length("length");
-
-    int len = v[length].as<int>();
-    result.resize(len);
-    auto ptr = quintptr(result.utf16());
-    stringToUTF16(v, val(ptr), val((len + 1) * 2));
-    return result;
-}
-
-QT_END_NAMESPACE
diff --git a/src/plugins/platforms/wasm/qwasmstring.h b/src/plugins/platforms/wasm/qwasmstring.h
deleted file mode 100644
index 62927ee9..00000000
--- a/src/plugins/platforms/wasm/qwasmstring.h
+++ /dev/null
@@ -1,19 +0,0 @@
-// Copyright (C) 2020 The Qt Company Ltd.
-// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only
-
-#pragma once
-
-#include <qstring.h>
-
-#include <emscripten/val.h>
-
-QT_BEGIN_NAMESPACE
-
-class QWasmString
-{
-public:
-    static emscripten::val fromQString(const QString &str);
-    static QString toQString(const emscripten::val &v);
-};
-QT_END_NAMESPACE
-
diff --git a/src/plugins/platforms/wasm/qwasmwindow.cpp b/src/plugins/platforms/wasm/qwasmwindow.cpp
index 11513fdd..d6902b21 100644
--- a/src/plugins/platforms/wasm/qwasmwindow.cpp
+++ b/src/plugins/platforms/wasm/qwasmwindow.cpp
@@ -5,6 +5,7 @@
 #include <private/qguiapplication_p.h>
 #include <QtCore/qfile.h>
 #include <QtGui/private/qwindow_p.h>
+#include <QtGui/private/qhighdpiscaling_p.h>
 #include <private/qpixmapcache_p.h>
 #include <QtGui/qopenglfunctions.h>
 #include <QBuffer>
@@ -20,7 +21,6 @@
 #include "qwasmcompositor.h"
 #include "qwasmevent.h"
 #include "qwasmeventdispatcher.h"
-#include "qwasmstring.h"
 #include "qwasmaccessibility.h"
 #include "qwasmclipboard.h"
 
@@ -94,6 +94,7 @@ QWasmWindow::QWasmWindow(QWindow *w, QWasmDeadKeySupport *deadKeySupport,
     emscripten::val::module_property("specialHTMLTargets").set(canvasSelector(), m_canvas);
 
     m_compositor->addWindow(this);
+    m_flags = window()->flags();
 
     const auto pointerCallback = std::function([this](emscripten::val event) {
         if (processPointer(*PointerEvent::fromWeb(event)))
@@ -169,6 +170,7 @@ void QWasmWindow::onNonClientAreaInteraction()
 {
     if (!isActive())
         requestActivateWindow();
+    QGuiApplicationPrivate::instance()->closeAllPopups();
 }
 
 bool QWasmWindow::onNonClientEvent(const PointerEvent &event)
@@ -208,11 +210,13 @@ void QWasmWindow::initialize()
     const QSize targetSize = !rect.isEmpty() ? rect.size() : minimumSize;
 
     rect.setWidth(qBound(minimumSize.width(), targetSize.width(), maximumSize.width()));
-    rect.setHeight(qBound(minimumSize.width(), targetSize.height(), maximumSize.height()));
+    rect.setHeight(qBound(minimumSize.height(), targetSize.height(), maximumSize.height()));
 
     setWindowState(window()->windowStates());
     setWindowFlags(window()->flags());
     setWindowTitle(window()->title());
+    setMask(QHighDpi::toNativeLocalRegion(window()->mask(), window()));
+
     if (window()->isTopLevel())
         setWindowIcon(window()->icon());
     m_normalGeometry = rect;
@@ -265,8 +269,11 @@ void QWasmWindow::setGeometry(const QRect &rect)
         const auto screenGeometry = screen()->geometry();
 
         QRect result(rect);
-        result.moveTop(std::max(std::min(rect.y(), screenGeometry.bottom()),
+        if (!parent()) {
+            // Clamp top level windows top position to the screen bounds
+            result.moveTop(std::max(std::min(rect.y(), screenGeometry.bottom()),
                                 screenGeometry.y() + margins.top()));
+        }
         result.setSize(
                 result.size().expandedTo(windowMinimumSize()).boundedTo(windowMaximumSize()));
         return result;
@@ -360,6 +367,12 @@ void QWasmWindow::propagateSizeHints()
         rect.setSize(windowMinimumSize());
         setGeometry(rect);
     }
+    m_nonClientArea->propagateSizeHints();
+}
+
+void QWasmWindow::setOpacity(qreal level)
+{
+    m_qtWindow["style"].set("opacity", qBound(0.0, level, 1.0));
 }
 
 void QWasmWindow::invalidate()
@@ -374,6 +387,8 @@ void QWasmWindow::onActivationChanged(bool active)
 
 void QWasmWindow::setWindowFlags(Qt::WindowFlags flags)
 {
+    if (flags.testFlag(Qt::WindowStaysOnTopHint) != m_flags.testFlag(Qt::WindowStaysOnTopHint))
+        m_compositor->windowPositionPreferenceChanged(this, flags);
     m_flags = flags;
     dom::syncCSSClassWith(m_qtWindow, "frameless", !hasFrame());
     dom::syncCSSClassWith(m_qtWindow, "has-border", hasBorder());
@@ -569,7 +584,7 @@ bool QWasmWindow::hasFrame() const
 bool QWasmWindow::hasBorder() const
 {
     return hasFrame() && !m_state.testFlag(Qt::WindowFullScreen) && !m_flags.testFlag(Qt::SubWindow)
-            && !windowIsPopupType(m_flags);
+            && !windowIsPopupType(m_flags) && !parent();
 }
 
 bool QWasmWindow::hasTitleBar() const
@@ -603,8 +618,10 @@ void QWasmWindow::requestActivateWindow()
         return;
     }
 
-    if (window()->isTopLevel())
+    if (window()->isTopLevel()) {
         raise();
+        m_compositor->setActive(this);
+    }
 
     if (!QWasmIntegration::get()->inputContext())
         m_canvas.call<void>("focus");
diff --git a/src/plugins/platforms/wasm/qwasmwindow.h b/src/plugins/platforms/wasm/qwasmwindow.h
index 7db125f4..aaf319c6 100644
--- a/src/plugins/platforms/wasm/qwasmwindow.h
+++ b/src/plugins/platforms/wasm/qwasmwindow.h
@@ -6,6 +6,7 @@
 
 #include "qwasmintegration.h"
 #include <qpa/qplatformwindow.h>
+#include <qpa/qplatformwindow_p.h>
 #include <emscripten/html5.h>
 #include "qwasmbackingstore.h"
 #include "qwasmscreen.h"
@@ -37,7 +38,7 @@ struct PointerEvent;
 class QWasmDeadKeySupport;
 struct WheelEvent;
 
-class QWasmWindow final : public QPlatformWindow
+class QWasmWindow final : public QPlatformWindow, public QNativeInterface::Private::QWasmWindow
 {
 public:
     QWasmWindow(QWindow *w, QWasmDeadKeySupport *deadKeySupport, QWasmCompositor *compositor,
@@ -67,6 +68,7 @@ public:
     QMargins frameMargins() const override;
     WId winId() const override;
     void propagateSizeHints() override;
+    void setOpacity(qreal level) override;
     void raise() override;
     void lower() override;
     QRect normalGeometry() const override;
@@ -92,6 +94,10 @@ public:
     emscripten::val a11yContainer() const { return m_a11yContainer; }
     emscripten::val inputHandlerElement() const { return m_windowContents; }
 
+    // QNativeInterface::Private::QWasmWindow
+    emscripten::val document() const override { return m_document; }
+    emscripten::val clientArea() const override { return m_qtWindow; }
+
 private:
     friend class QWasmScreen;
     static constexpr auto minSizeForRegularWindows = 100;
diff --git a/src/plugins/platforms/wasm/qwasmwindowclientarea.cpp b/src/plugins/platforms/wasm/qwasmwindowclientarea.cpp
index 83b7dbd5..a0684e8e 100644
--- a/src/plugins/platforms/wasm/qwasmwindowclientarea.cpp
+++ b/src/plugins/platforms/wasm/qwasmwindowclientarea.cpp
@@ -19,8 +19,9 @@ ClientArea::ClientArea(QWasmWindow *window, QWasmScreen *screen, emscripten::val
     : m_screen(screen), m_window(window), m_element(element)
 {
     const auto callback = std::function([this](emscripten::val event) {
-        if (processPointer(*PointerEvent::fromWeb(event)))
-            event.call<void>("preventDefault");
+        processPointer(*PointerEvent::fromWeb(event));
+        event.call<void>("preventDefault");
+        event.call<void>("stopPropagation");
     });
 
     m_pointerDownCallback =
diff --git a/src/plugins/platforms/wasm/qwasmwindownonclientarea.cpp b/src/plugins/platforms/wasm/qwasmwindownonclientarea.cpp
index 68f14425..bc597069 100644
--- a/src/plugins/platforms/wasm/qwasmwindownonclientarea.cpp
+++ b/src/plugins/platforms/wasm/qwasmwindownonclientarea.cpp
@@ -178,6 +178,22 @@ Resizer::Resizer(QWasmWindow *window, emscripten::val parentElement)
 
 Resizer::~Resizer() = default;
 
+ResizeConstraints Resizer::getResizeConstraints() {
+    const auto *window = m_window->window();
+    const auto minShrink = QPoint(window->minimumWidth() - window->geometry().width(),
+                              window->minimumHeight() - window->geometry().height());
+    const auto maxGrow = QPoint(window->maximumWidth() - window->geometry().width(),
+                          window->maximumHeight() - window->geometry().height());
+
+    const auto frameRect =
+            QRectF::fromDOMRect(m_windowElement.call<emscripten::val>("getBoundingClientRect"));
+    const auto screenRect = QRectF::fromDOMRect(
+            m_window->platformScreen()->element().call<emscripten::val>("getBoundingClientRect"));
+    const int maxGrowTop = frameRect.top() - screenRect.top();
+
+    return ResizeConstraints{minShrink, maxGrow, maxGrowTop};
+}
+
 void Resizer::onInteraction()
 {
     m_window->onNonClientAreaInteraction();
@@ -193,23 +209,14 @@ void Resizer::startResize(Qt::Edges resizeEdges, const PointerEvent &event)
                     event.target, m_window->platformScreen()->element(), event.localPoint),
     });
 
-    const auto *window = m_window->window();
-    m_currentResizeData->minShrink = QPoint(window->minimumWidth() - window->geometry().width(),
-                                            window->minimumHeight() - window->geometry().height());
-
-    const auto frameRect =
-            QRectF::fromDOMRect(m_windowElement.call<emscripten::val>("getBoundingClientRect"));
-    const auto screenRect = QRectF::fromDOMRect(
-            m_window->platformScreen()->element().call<emscripten::val>("getBoundingClientRect"));
-
-    const int maxGrowTop = frameRect.top() - screenRect.top();
-
+    const auto resizeConstraints = getResizeConstraints();
+    m_currentResizeData->minShrink = resizeConstraints.minShrink;
     m_currentResizeData->maxGrow =
-            QPoint(window->maximumWidth() - window->geometry().width(),
-                   std::min(resizeEdges & Qt::Edge::TopEdge ? maxGrowTop : INT_MAX,
-                            window->maximumHeight() - window->geometry().height()));
+            QPoint(resizeConstraints.maxGrow.x(),
+                   std::min(resizeEdges & Qt::Edge::TopEdge ? resizeConstraints.maxGrowTop : INT_MAX,
+                            resizeConstraints.maxGrow.y()));
 
-    m_currentResizeData->initialBounds = window->geometry();
+    m_currentResizeData->initialBounds = m_window->window()->geometry();
 }
 
 void Resizer::continueResize(const PointerEvent &event)
@@ -414,9 +421,11 @@ QPointF TitleBar::clipPointWithScreen(const QPointF &pointInTitleBarCoords) cons
 }
 
 NonClientArea::NonClientArea(QWasmWindow *window, emscripten::val qtWindowElement)
+    : m_qtWindowElement(qtWindowElement),
+      m_resizer(std::make_unique<Resizer>(window, m_qtWindowElement)),
+      m_titleBar(std::make_unique<TitleBar>(window, m_qtWindowElement))
 {
-    m_titleBar = std::make_unique<TitleBar>(window, qtWindowElement);
-    m_resizer = std::make_unique<Resizer>(window, qtWindowElement);
+    updateResizability();
 }
 
 NonClientArea::~NonClientArea() = default;
@@ -426,4 +435,17 @@ void NonClientArea::onClientAreaWidthChange(int width)
     m_titleBar->setWidth(width);
 }
 
+void NonClientArea::propagateSizeHints()
+{
+    updateResizability();
+}
+
+void NonClientArea::updateResizability()
+{
+    const auto resizeConstraints = m_resizer->getResizeConstraints();
+    const bool nonResizable = resizeConstraints.minShrink.isNull()
+            && resizeConstraints.maxGrow.isNull() && resizeConstraints.maxGrowTop == 0;
+    dom::syncCSSClassWith(m_qtWindowElement, "no-resize", nonResizable);
+}
+
 QT_END_NAMESPACE
diff --git a/src/plugins/platforms/wasm/qwasmwindownonclientarea.h b/src/plugins/platforms/wasm/qwasmwindownonclientarea.h
index 29168b99..78c77585 100644
--- a/src/plugins/platforms/wasm/qwasmwindownonclientarea.h
+++ b/src/plugins/platforms/wasm/qwasmwindownonclientarea.h
@@ -34,9 +34,13 @@ public:
     ~NonClientArea();
 
     void onClientAreaWidthChange(int width);
+    void propagateSizeHints();
     TitleBar *titleBar() const { return m_titleBar.get(); }
 
 private:
+    void updateResizability();
+
+    emscripten::val m_qtWindowElement;
     std::unique_ptr<Resizer> m_resizer;
     std::unique_ptr<TitleBar> m_titleBar;
 };
@@ -87,6 +91,12 @@ private:
     Callbacks m_callbacks;
 };
 
+struct ResizeConstraints {
+    QPoint minShrink;
+    QPoint maxGrow;
+    int maxGrowTop;
+};
+
 class Resizer
 {
 public:
@@ -147,6 +157,8 @@ public:
     Resizer(QWasmWindow *window, emscripten::val parentElement);
     ~Resizer();
 
+    ResizeConstraints getResizeConstraints();
+
 private:
     void onInteraction();
     void startResize(Qt::Edges resizeEdges, const PointerEvent &event);
diff --git a/src/plugins/platforms/wasm/qwasmwindowstack.cpp b/src/plugins/platforms/wasm/qwasmwindowstack.cpp
index 098f1c1f..d3769c7a 100644
--- a/src/plugins/platforms/wasm/qwasmwindowstack.cpp
+++ b/src/plugins/platforms/wasm/qwasmwindowstack.cpp
@@ -5,20 +5,38 @@
 
 QT_BEGIN_NAMESPACE
 
-QWasmWindowStack::QWasmWindowStack(TopWindowChangedCallbackType topWindowChangedCallback)
-    : m_topWindowChangedCallback(std::move(topWindowChangedCallback))
+QWasmWindowStack::QWasmWindowStack(WindowOrderChangedCallbackType windowOrderChangedCallback)
+    : m_windowOrderChangedCallback(std::move(windowOrderChangedCallback)),
+      m_regularWindowsBegin(m_windowStack.begin()),
+      m_alwaysOnTopWindowsBegin(m_windowStack.begin())
 {
 }
 
 QWasmWindowStack::~QWasmWindowStack() = default;
 
-void QWasmWindowStack::pushWindow(QWasmWindow *window)
+void QWasmWindowStack::pushWindow(QWasmWindow *window, PositionPreference position)
 {
     Q_ASSERT(m_windowStack.count(window) == 0);
 
-    m_windowStack.push_back(window);
+    if (position == PositionPreference::StayOnTop) {
+        const auto stayOnTopDistance =
+                std::distance(m_windowStack.begin(), m_alwaysOnTopWindowsBegin);
+        const auto regularDistance = std::distance(m_windowStack.begin(), m_regularWindowsBegin);
+        m_windowStack.push_back(window);
+        m_alwaysOnTopWindowsBegin = m_windowStack.begin() + stayOnTopDistance;
+        m_regularWindowsBegin = m_windowStack.begin() + regularDistance;
+    } else if (position == PositionPreference::Regular) {
+        const auto regularDistance = std::distance(m_windowStack.begin(), m_regularWindowsBegin);
+        m_alwaysOnTopWindowsBegin = m_windowStack.insert(m_alwaysOnTopWindowsBegin, window) + 1;
+        m_regularWindowsBegin = m_windowStack.begin() + regularDistance;
+    } else {
+        const auto stayOnTopDistance =
+                std::distance(m_windowStack.begin(), m_alwaysOnTopWindowsBegin);
+        m_regularWindowsBegin = m_windowStack.insert(m_regularWindowsBegin, window) + 1;
+        m_alwaysOnTopWindowsBegin = m_windowStack.begin() + stayOnTopDistance + 1;
+    }
 
-    m_topWindowChangedCallback();
+    m_windowOrderChangedCallback();
 }
 
 void QWasmWindowStack::removeWindow(QWasmWindow *window)
@@ -26,41 +44,105 @@ void QWasmWindowStack::removeWindow(QWasmWindow *window)
     Q_ASSERT(m_windowStack.count(window) == 1);
 
     auto it = std::find(m_windowStack.begin(), m_windowStack.end(), window);
-    const bool removingBottom = m_windowStack.begin() == it;
-    const bool removingTop = m_windowStack.end() - 1 == it;
-    if (removingBottom)
-        m_firstWindowTreatment = FirstWindowTreatment::Regular;
+    const auto position = getWindowPositionPreference(it);
+    const auto stayOnTopDistance = std::distance(m_windowStack.begin(), m_alwaysOnTopWindowsBegin);
+    const auto regularDistance = std::distance(m_windowStack.begin(), m_regularWindowsBegin);
 
     m_windowStack.erase(it);
 
-    if (removingTop)
-        m_topWindowChangedCallback();
+    m_alwaysOnTopWindowsBegin = m_windowStack.begin() + stayOnTopDistance
+            - (position != PositionPreference::StayOnTop ? 1 : 0);
+    m_regularWindowsBegin = m_windowStack.begin() + regularDistance
+            - (position == PositionPreference::StayOnBottom ? 1 : 0);
+
+    m_windowOrderChangedCallback();
 }
 
 void QWasmWindowStack::raise(QWasmWindow *window)
 {
     Q_ASSERT(m_windowStack.count(window) == 1);
 
-    if (window == rootWindow() || window == topWindow())
+    if (window == topWindow())
         return;
 
-    auto it = std::find(regularWindowsBegin(), m_windowStack.end(), window);
-    std::rotate(it, it + 1, m_windowStack.end());
-    m_topWindowChangedCallback();
+    auto it = std::find(m_windowStack.begin(), m_windowStack.end(), window);
+    auto itEnd = ([this, position = getWindowPositionPreference(it)]() {
+        switch (position) {
+        case PositionPreference::StayOnTop:
+            return m_windowStack.end();
+        case PositionPreference::Regular:
+            return m_alwaysOnTopWindowsBegin;
+        case PositionPreference::StayOnBottom:
+            return m_regularWindowsBegin;
+        }
+    })();
+    std::rotate(it, it + 1, itEnd);
+    m_windowOrderChangedCallback();
 }
 
 void QWasmWindowStack::lower(QWasmWindow *window)
 {
     Q_ASSERT(m_windowStack.count(window) == 1);
 
-    if (window == rootWindow())
+    if (window == *m_windowStack.begin())
         return;
 
-    const bool loweringTopWindow = topWindow() == window;
-    auto it = std::find(regularWindowsBegin(), m_windowStack.end(), window);
-    std::rotate(regularWindowsBegin(), it, it + 1);
-    if (loweringTopWindow && topWindow() != window)
-        m_topWindowChangedCallback();
+    auto it = std::find(m_windowStack.begin(), m_windowStack.end(), window);
+    auto itBegin = ([this, position = getWindowPositionPreference(it)]() {
+        switch (position) {
+        case PositionPreference::StayOnTop:
+            return m_alwaysOnTopWindowsBegin;
+        case PositionPreference::Regular:
+            return m_regularWindowsBegin;
+        case PositionPreference::StayOnBottom:
+            return m_windowStack.begin();
+        }
+    })();
+
+    std::rotate(itBegin, it, it + 1);
+    m_windowOrderChangedCallback();
+}
+
+void QWasmWindowStack::windowPositionPreferenceChanged(QWasmWindow *window,
+                                                       PositionPreference position)
+{
+    auto it = std::find(m_windowStack.begin(), m_windowStack.end(), window);
+    const auto currentPosition = getWindowPositionPreference(it);
+
+    const auto zones = static_cast<int>(position) - static_cast<int>(currentPosition);
+    Q_ASSERT(zones != 0);
+
+    if (zones < 0) {
+        // Perform right rotation so that the window lands on top of regular windows
+        const auto begin = std::make_reverse_iterator(it + 1);
+        const auto end = position == PositionPreference::Regular
+                ? std::make_reverse_iterator(m_alwaysOnTopWindowsBegin)
+                : std::make_reverse_iterator(m_regularWindowsBegin);
+        std::rotate(begin, begin + 1, end);
+        if (zones == -2) {
+            ++m_alwaysOnTopWindowsBegin;
+            ++m_regularWindowsBegin;
+        } else if (position == PositionPreference::Regular) {
+            ++m_alwaysOnTopWindowsBegin;
+        } else {
+            ++m_regularWindowsBegin;
+        }
+    } else {
+        // Perform left rotation so that the window lands at the bottom of always on top windows
+        const auto begin = it;
+        const auto end = position == PositionPreference::Regular ? m_regularWindowsBegin
+                                                                 : m_alwaysOnTopWindowsBegin;
+        std::rotate(begin, begin + 1, end);
+        if (zones == 2) {
+            --m_alwaysOnTopWindowsBegin;
+            --m_regularWindowsBegin;
+        } else if (position == PositionPreference::Regular) {
+            --m_regularWindowsBegin;
+        } else {
+            --m_alwaysOnTopWindowsBegin;
+        }
+    }
+    m_windowOrderChangedCallback();
 }
 
 QWasmWindowStack::iterator QWasmWindowStack::begin()
@@ -103,21 +185,19 @@ size_t QWasmWindowStack::size() const
     return m_windowStack.size();
 }
 
-QWasmWindow *QWasmWindowStack::rootWindow() const
-{
-    return m_firstWindowTreatment == FirstWindowTreatment::AlwaysAtBottom ? m_windowStack.first()
-                                                                          : nullptr;
-}
-
 QWasmWindow *QWasmWindowStack::topWindow() const
 {
     return m_windowStack.empty() ? nullptr : m_windowStack.last();
 }
 
-QWasmWindowStack::StorageType::iterator QWasmWindowStack::regularWindowsBegin()
+QWasmWindowStack::PositionPreference
+QWasmWindowStack::getWindowPositionPreference(StorageType::iterator windowIt) const
 {
-    return m_windowStack.begin()
-            + (m_firstWindowTreatment == FirstWindowTreatment::AlwaysAtBottom ? 1 : 0);
+    if (windowIt >= m_alwaysOnTopWindowsBegin)
+        return PositionPreference::StayOnTop;
+    if (windowIt >= m_regularWindowsBegin)
+        return PositionPreference::Regular;
+    return PositionPreference::StayOnBottom;
 }
 
 QT_END_NAMESPACE
diff --git a/src/plugins/platforms/wasm/qwasmwindowstack.h b/src/plugins/platforms/wasm/qwasmwindowstack.h
index e98ebf90..c7500115 100644
--- a/src/plugins/platforms/wasm/qwasmwindowstack.h
+++ b/src/plugins/platforms/wasm/qwasmwindowstack.h
@@ -21,10 +21,10 @@ class QWasmWindow;
 // Access to the top element is facilitated by |topWindow|.
 // Changes to the top element are signaled via the |topWindowChangedCallback| supplied at
 // construction.
-Q_AUTOTEST_EXPORT class QWasmWindowStack
+class Q_AUTOTEST_EXPORT QWasmWindowStack
 {
 public:
-    using TopWindowChangedCallbackType = std::function<void()>;
+    using WindowOrderChangedCallbackType = std::function<void()>;
 
     using StorageType = QList<QWasmWindow *>;
 
@@ -32,13 +32,20 @@ public:
     using const_iterator = StorageType::const_reverse_iterator;
     using const_reverse_iterator = StorageType::const_iterator;
 
-    explicit QWasmWindowStack(TopWindowChangedCallbackType topWindowChangedCallback);
+    enum class PositionPreference {
+        StayOnBottom,
+        Regular,
+        StayOnTop,
+    };
+
+    explicit QWasmWindowStack(WindowOrderChangedCallbackType topWindowChangedCallback);
     ~QWasmWindowStack();
 
-    void pushWindow(QWasmWindow *window);
+    void pushWindow(QWasmWindow *window, PositionPreference position);
     void removeWindow(QWasmWindow *window);
     void raise(QWasmWindow *window);
     void lower(QWasmWindow *window);
+    void windowPositionPreferenceChanged(QWasmWindow *window, PositionPreference position);
 
     // Iterates top-to-bottom
     iterator begin();
@@ -55,14 +62,12 @@ public:
     QWasmWindow *topWindow() const;
 
 private:
-    enum class FirstWindowTreatment { AlwaysAtBottom, Regular };
+    PositionPreference getWindowPositionPreference(StorageType::iterator windowIt) const;
 
-    QWasmWindow *rootWindow() const;
-    StorageType::iterator regularWindowsBegin();
-
-    TopWindowChangedCallbackType m_topWindowChangedCallback;
+    WindowOrderChangedCallbackType m_windowOrderChangedCallback;
     QList<QWasmWindow *> m_windowStack;
-    FirstWindowTreatment m_firstWindowTreatment = FirstWindowTreatment::AlwaysAtBottom;
+    StorageType::iterator m_regularWindowsBegin;
+    StorageType::iterator m_alwaysOnTopWindowsBegin;
 };
 
 QT_END_NAMESPACE
diff --git a/src/plugins/platforms/wasm/wasm_shell.html b/src/plugins/platforms/wasm/wasm_shell.html
index aaa12198..f9b32275 100644
--- a/src/plugins/platforms/wasm/wasm_shell.html
+++ b/src/plugins/platforms/wasm/wasm_shell.html
@@ -27,42 +27,48 @@
     </figure>
     <div id="screen"></div>
 
-    <script type='text/javascript'>
-        let qtLoader = undefined;
-        function init() {
-          var spinner = document.querySelector('#qtspinner');
-          var canvas = document.querySelector('#screen');
-          var status = document.querySelector('#qtstatus')
+    <script type="text/javascript">
+        async function init()
+        {
+            const spinner = document.querySelector('#qtspinner');
+            const screen = document.querySelector('#screen');
+            const status = document.querySelector('#qtstatus');
 
-          qtLoader = new QtLoader({
-              canvasElements : [canvas],
-              showLoader: function(loaderStatus) {
-                  spinner.style.display = 'block';
-                  canvas.style.display = 'none';
-                  status.innerHTML = loaderStatus + "...";
-              },
-              showError: function(errorText) {
-                  status.innerHTML = errorText;
-                  spinner.style.display = 'block';
-                  canvas.style.display = 'none';
-              },
-              showExit: function() {
-                  status.innerHTML = "Application exit";
-                  if (qtLoader.exitCode !== undefined)
-                      status.innerHTML += " with code " + qtLoader.exitCode;
-                  if (qtLoader.exitText !== undefined)
-                      status.innerHTML += " (" + qtLoader.exitText + ")";
-                  spinner.style.display = 'block';
-                  canvas.style.display = 'none';
-              },
-              showCanvas: function() {
-                  spinner.style.display = 'none';
-                  canvas.style.display = 'block';
-              },
-          });
-          qtLoader.loadEmscriptenModule("@APPNAME@");
-      }
+            const showUi = (ui) => {
+                [spinner, screen].forEach(element => element.style.display = 'none');
+                if (screen === ui)
+                    screen.style.position = 'default';
+                ui.style.display = 'block';
+            }
+
+            try {
+                showUi(spinner);
+                status.innerHTML = 'Loading...';
+
+                const instance = await qtLoad({
+                    qt: {
+                        onLoaded: () => showUi(screen),
+                        onExit: exitData =>
+                        {
+                            status.innerHTML = 'Application exit';
+                            status.innerHTML +=
+                                exitData.code !== undefined ? ` with code ${exitData.code}` : '';
+                            status.innerHTML +=
+                                exitData.text !== undefined ? ` (${exitData.text})` : '';
+                            showUi(spinner);
+                        },
+                        entryFunction: window.createQtAppInstance,
+                        containerElements: [screen],
+                        @PRELOAD@
+                    }
+                });
+            } catch (e) {
+                console.error(e);
+                console.error(e.stack);
+            }
+        }
     </script>
+    <script src="@APPNAME@.js"></script>
     <script type="text/javascript" src="qtloader.js"></script>
   </body>
 </html>
diff --git a/src/plugins/platforms/windows/qtwindowsglobal.h b/src/plugins/platforms/windows/qtwindowsglobal.h
index d39e9236..22787bd6 100644
--- a/src/plugins/platforms/windows/qtwindowsglobal.h
+++ b/src/plugins/platforms/windows/qtwindowsglobal.h
@@ -150,13 +150,14 @@ enum WindowsEventType // Simplify event types
 Q_DECLARE_MIXED_ENUM_OPERATORS(bool, WindowsEventTypeFlags, WindowsEventType);
 Q_DECLARE_MIXED_ENUM_OPERATORS(bool, WindowsEventType, WindowsEventTypeFlags);
 
-// Matches Process_DPI_Awareness (Windows 8.1 onwards), used for SetProcessDpiAwareness()
-enum ProcessDpiAwareness
+enum class DpiAwareness
 {
-    ProcessDpiUnaware,
-    ProcessSystemDpiAware,
-    ProcessPerMonitorDpiAware,
-    ProcessPerMonitorV2DpiAware // Qt extension (not in Process_DPI_Awareness)
+    Invalid = -1,
+    Unaware,
+    System,
+    PerMonitor,
+    PerMonitorVersion2,
+    Unaware_GdiScaled
 };
 
 } // namespace QtWindows
@@ -326,6 +327,10 @@ inline QtWindows::WindowsEventType windowsEventType(UINT message, WPARAM wParamI
     return QtWindows::UnknownEvent;
 }
 
+#ifndef QT_NO_DEBUG_STREAM
+extern QDebug operator<<(QDebug, QtWindows::DpiAwareness);
+#endif
+
 QT_END_NAMESPACE
 
 #endif // QTWINDOWSGLOBAL_H
diff --git a/src/plugins/platforms/windows/qwindowsapplication.cpp b/src/plugins/platforms/windows/qwindowsapplication.cpp
index a01dd156..60cbf1f7 100644
--- a/src/plugins/platforms/windows/qwindowsapplication.cpp
+++ b/src/plugins/platforms/windows/qwindowsapplication.cpp
@@ -143,7 +143,7 @@ QVariant QWindowsApplication::gpuList() const
     return result;
 }
 
-void QWindowsApplication::lightSystemPalette(QPalette &result) const
+void QWindowsApplication::populateLightSystemPalette(QPalette &result) const
 {
     result = QWindowsTheme::systemPalette(Qt::ColorScheme::Light);
 }
diff --git a/src/plugins/platforms/windows/qwindowsapplication.h b/src/plugins/platforms/windows/qwindowsapplication.h
index 8b74b47f..efacd74e 100644
--- a/src/plugins/platforms/windows/qwindowsapplication.h
+++ b/src/plugins/platforms/windows/qwindowsapplication.h
@@ -43,7 +43,7 @@ public:
     QVariant gpu() const override;
     QVariant gpuList() const override;
 
-    void lightSystemPalette(QPalette &palette) const override;
+    void populateLightSystemPalette(QPalette &palette) const override;
 
 private:
     WindowActivationBehavior m_windowActivationBehavior = DefaultActivateWindow;
diff --git a/src/plugins/platforms/windows/qwindowscontext.cpp b/src/plugins/platforms/windows/qwindowscontext.cpp
index ba215967..9447fcfc 100644
--- a/src/plugins/platforms/windows/qwindowscontext.cpp
+++ b/src/plugins/platforms/windows/qwindowscontext.cpp
@@ -119,28 +119,6 @@ static inline bool sessionManagerInteractionBlocked()
 static inline bool sessionManagerInteractionBlocked() { return false; }
 #endif
 
-static inline int windowDpiAwareness(HWND hwnd)
-{
-    return QWindowsContext::user32dll.getWindowDpiAwarenessContext && QWindowsContext::user32dll.getAwarenessFromDpiAwarenessContext
-        ? QWindowsContext::user32dll.getAwarenessFromDpiAwarenessContext(QWindowsContext::user32dll.getWindowDpiAwarenessContext(hwnd))
-        : -1;
-}
-
-// Note: This only works within WM_NCCREATE
-static bool enableNonClientDpiScaling(HWND hwnd)
-{
-    bool result = false;
-    if (QWindowsContext::user32dll.enableNonClientDpiScaling && windowDpiAwareness(hwnd) == 2) {
-        result = QWindowsContext::user32dll.enableNonClientDpiScaling(hwnd) != FALSE;
-        if (!result) {
-            const DWORD errorCode = GetLastError();
-            qErrnoWarning(int(errorCode), "EnableNonClientDpiScaling() failed for HWND %p (%lu)",
-                          hwnd, errorCode);
-        }
-    }
-    return result;
-}
-
 /*!
     \class QWindowsUser32DLL
     \brief Struct that contains dynamically resolved symbols of User32.dll.
@@ -158,6 +136,7 @@ void QWindowsUser32DLL::init()
     setProcessDPIAware = (SetProcessDPIAware)library.resolve("SetProcessDPIAware");
     setProcessDpiAwarenessContext = (SetProcessDpiAwarenessContext)library.resolve("SetProcessDpiAwarenessContext");
     getThreadDpiAwarenessContext = (GetThreadDpiAwarenessContext)library.resolve("GetThreadDpiAwarenessContext");
+    isValidDpiAwarenessContext = (IsValidDpiAwarenessContext)library.resolve("IsValidDpiAwarenessContext");
     areDpiAwarenessContextsEqual = (AreDpiAwarenessContextsEqual)library.resolve("AreDpiAwarenessContextsEqual");
 
     addClipboardFormatListener = (AddClipboardFormatListener)library.resolve("AddClipboardFormatListener");
@@ -181,7 +160,6 @@ void QWindowsUser32DLL::init()
     
     if (QOperatingSystemVersion::current()
         >= QOperatingSystemVersion(QOperatingSystemVersion::Windows, 10, 0, 14393)) {
-        adjustWindowRectEx = (AdjustWindowRectEx)library.resolve("AdjustWindowRectEx");
         adjustWindowRectExForDpi = (AdjustWindowRectExForDpi)library.resolve("AdjustWindowRectExForDpi");
         enableNonClientDpiScaling = (EnableNonClientDpiScaling)library.resolve("EnableNonClientDpiScaling");
         getWindowDpiAwarenessContext = (GetWindowDpiAwarenessContext)library.resolve("GetWindowDpiAwarenessContext");
@@ -257,7 +235,7 @@ QWindowsContextPrivate::QWindowsContextPrivate()
 {
     QWindowsContext::user32dll.init();
     QWindowsContext::shcoredll.init();
-
+    
     if (m_pointerHandler.touchDevice() || m_mouseHandler.touchDevice())
         m_systemInfo |= QWindowsContext::SI_SupportsTouch;
     m_displayContext = GetDC(nullptr);
@@ -449,66 +427,142 @@ void QWindowsContext::setDetectAltGrModifier(bool a)
     d->m_keyMapper.setDetectAltGrModifier(a);
 }
 
-int QWindowsContext::processDpiAwareness()
+[[nodiscard]] static inline QtWindows::DpiAwareness
+    dpiAwarenessContextToQtDpiAwareness(DPI_AWARENESS_CONTEXT context)
 {
-    PROCESS_DPI_AWARENESS result;
-    if (QWindowsContext::shcoredll.getProcessDpiAwareness
-        && SUCCEEDED(QWindowsContext::shcoredll.getProcessDpiAwareness(nullptr, &result))) {
-        return static_cast<int>(result);
-    }
-    return -1;
-}
+    if (QWindowsContext::user32dll.isValidDpiAwarenessContext && QWindowsContext::user32dll.areDpiAwarenessContextsEqual)
+    {
+        // IsValidDpiAwarenessContext() will handle the NULL pointer case.
+        if (!QWindowsContext::user32dll.isValidDpiAwarenessContext(context))
+            return QtWindows::DpiAwareness::Invalid;
+        if (QWindowsContext::user32dll.areDpiAwarenessContextsEqual(context, DPI_AWARENESS_CONTEXT_UNAWARE_GDISCALED))
+            return QtWindows::DpiAwareness::Unaware_GdiScaled;
+        if (QWindowsContext::user32dll.areDpiAwarenessContextsEqual(context, DPI_AWARENESS_CONTEXT_PER_MONITOR_AWARE_V2))
+            return QtWindows::DpiAwareness::PerMonitorVersion2;
+        if (QWindowsContext::user32dll.areDpiAwarenessContextsEqual(context, DPI_AWARENESS_CONTEXT_PER_MONITOR_AWARE))
+            return QtWindows::DpiAwareness::PerMonitor;
+        if (QWindowsContext::user32dll.areDpiAwarenessContextsEqual(context, DPI_AWARENESS_CONTEXT_SYSTEM_AWARE))
+            return QtWindows::DpiAwareness::System;
+        if (QWindowsContext::user32dll.areDpiAwarenessContextsEqual(context, DPI_AWARENESS_CONTEXT_UNAWARE))
+            return QtWindows::DpiAwareness::Unaware;
 
-void QWindowsContext::setProcessDpiAwareness(QtWindows::ProcessDpiAwareness dpiAwareness)
-{
-    qCDebug(lcQpaWindow) << __FUNCTION__ << dpiAwareness;
-    if (processDpiAwareness() == int(dpiAwareness))
-        return;
-
-    if (QWindowsContext::shcoredll.isValid()) {
-        const HRESULT hr = QWindowsContext::shcoredll.setProcessDpiAwareness(static_cast<PROCESS_DPI_AWARENESS>(dpiAwareness));
-        if (FAILED(hr)) {
-            qCWarning(lcQpaWindow).noquote().nospace() << "SetProcessDpiAwareness("
-                << dpiAwareness << ") failed: " << QSystemError::windowsComString(hr) << ", using "
-                << QWindowsContext::processDpiAwareness() << "\nQt's fallback DPI awareness is "
-                << "PROCESS_DPI_AWARENESS. If you know what you are doing consider an override in qt.conf";
-        }
-    } else {
-        if (dpiAwareness != QtWindows::ProcessDpiUnaware && QWindowsContext::user32dll.setProcessDPIAware) {
-            if (!QWindowsContext::user32dll.setProcessDPIAware())
-                qErrnoWarning("SetProcessDPIAware() failed");
-        }       
-    }
-}
-
-bool QWindowsContext::setProcessDpiV2Awareness()
-{
-    qCDebug(lcQpaWindow) << __FUNCTION__;
-    if (QWindowsContext::user32dll.getThreadDpiAwarenessContext) {
-        auto dpiContext = QWindowsContext::user32dll.getThreadDpiAwarenessContext();
-        if (QWindowsContext::user32dll.areDpiAwarenessContextsEqual &&
-            QWindowsContext::user32dll.areDpiAwarenessContextsEqual(dpiContext, DPI_AWARENESS_CONTEXT_PER_MONITOR_AWARE_V2))
-            return true;
-    }
-
-    if (QWindowsContext::user32dll.setProcessDpiAwarenessContext) {
-        const BOOL ok = QWindowsContext::user32dll.setProcessDpiAwarenessContext(DPI_AWARENESS_CONTEXT_PER_MONITOR_AWARE_V2);
-        if (!ok) {
-            const DWORD dwError = GetLastError();
-            qCWarning(lcQpaWindow).noquote().nospace()
-                << "SetProcessDpiAwarenessContext(DPI_AWARENESS_CONTEXT_PER_MONITOR_AWARE_V2) failed: "
-                << QSystemError::windowsComString(HRESULT(dwError)) << "\nQt's default DPI awareness "
-                << "context is DPI_AWARENESS_CONTEXT_PER_MONITOR_AWARE_V2. If you know what you "
-                << "are doing you can overwrite this default using qt.conf "
-                << "(https://doc.qt.io/qt-6/highdpi.html#configuring-windows)";
-            return false;
-        }
-        QWindowsContextPrivate::m_v2DpiAware = true;
-
-        return true;
+        return QtWindows::DpiAwareness::Invalid;
     }
     
-    return false;
+    return QtWindows::DpiAwareness::Unaware; // Windows 7
+}
+
+QtWindows::DpiAwareness QWindowsContext::windowDpiAwareness(HWND hwnd)
+{
+    if (!hwnd)
+        return QtWindows::DpiAwareness::Invalid;
+
+    if (QWindowsContext::user32dll.getWindowDpiAwarenessContext)
+    {
+        const auto context = QWindowsContext::user32dll.getWindowDpiAwarenessContext(hwnd);
+        return dpiAwarenessContextToQtDpiAwareness(context);
+    }
+
+    return dpiAwarenessContextToQtDpiAwareness(DPI_AWARENESS_CONTEXT_UNAWARE);
+}
+
+QtWindows::DpiAwareness QWindowsContext::processDpiAwareness()
+{
+    if (QWindowsContext::user32dll.getThreadDpiAwarenessContext)
+    {
+        // Although we have GetDpiAwarenessContextForProcess(), however,
+        // it's only available on Win10 1903+, which is a little higher
+        // than Qt's minimum supported version (1809), so we can't use it.
+        // Luckily, MS docs said GetThreadDpiAwarenessContext() will also
+        // return the default DPI_AWARENESS_CONTEXT for the process if
+        // SetThreadDpiAwarenessContext() was never called. So we can use
+        // it as an equivalent.
+        const auto context = QWindowsContext::user32dll.getThreadDpiAwarenessContext();
+        return dpiAwarenessContextToQtDpiAwareness(context);
+    }
+
+    return dpiAwarenessContextToQtDpiAwareness(DPI_AWARENESS_CONTEXT_UNAWARE);
+}
+
+[[nodiscard]] static inline DPI_AWARENESS_CONTEXT
+    qtDpiAwarenessToDpiAwarenessContext(QtWindows::DpiAwareness dpiAwareness)
+{
+    switch (dpiAwareness) {
+    case QtWindows::DpiAwareness::Invalid:
+        return nullptr;
+    case QtWindows::DpiAwareness::Unaware:
+        return DPI_AWARENESS_CONTEXT_UNAWARE;
+    case QtWindows::DpiAwareness::System:
+        return DPI_AWARENESS_CONTEXT_SYSTEM_AWARE;
+    case QtWindows::DpiAwareness::PerMonitor:
+        return DPI_AWARENESS_CONTEXT_PER_MONITOR_AWARE;
+    case QtWindows::DpiAwareness::PerMonitorVersion2:
+        return DPI_AWARENESS_CONTEXT_PER_MONITOR_AWARE_V2;
+    case QtWindows::DpiAwareness::Unaware_GdiScaled:
+        return DPI_AWARENESS_CONTEXT_UNAWARE_GDISCALED;
+    }
+    return nullptr;
+}
+
+#ifndef QT_NO_DEBUG_STREAM
+QDebug operator<<(QDebug d, QtWindows::DpiAwareness dpiAwareness)
+{
+    const QDebugStateSaver saver(d);
+    QString message = u"QtWindows::DpiAwareness::"_s;
+    switch (dpiAwareness) {
+    case QtWindows::DpiAwareness::Invalid:
+        message += u"Invalid"_s;
+        break;
+    case QtWindows::DpiAwareness::Unaware:
+        message += u"Unaware"_s;
+        break;
+    case QtWindows::DpiAwareness::System:
+        message += u"System"_s;
+        break;
+    case QtWindows::DpiAwareness::PerMonitor:
+        message += u"PerMonitor"_s;
+        break;
+    case QtWindows::DpiAwareness::PerMonitorVersion2:
+        message += u"PerMonitorVersion2"_s;
+        break;
+    case QtWindows::DpiAwareness::Unaware_GdiScaled:
+        message += u"Unaware_GdiScaled"_s;
+        break;
+    }
+    d.nospace().noquote() << message;
+    return d;
+}
+#endif
+
+bool QWindowsContext::setProcessDpiAwareness(QtWindows::DpiAwareness dpiAwareness)
+{
+    qCDebug(lcQpaWindow) << __FUNCTION__ << dpiAwareness;
+    if (processDpiAwareness() == dpiAwareness)
+        return true;
+    const auto context = qtDpiAwarenessToDpiAwarenessContext(dpiAwareness);
+
+    if (QWindowsContext::user32dll.isValidDpiAwarenessContext && QWindowsContext::user32dll.setProcessDpiAwarenessContext)
+    {
+        if (!QWindowsContext::user32dll.isValidDpiAwarenessContext(context)) {
+            qCWarning(lcQpaWindow) << dpiAwareness << "is not supported by current system.";
+            return false;
+        }
+        if (!QWindowsContext::user32dll.setProcessDpiAwarenessContext(context)) {
+            qCWarning(lcQpaWindow).noquote().nospace()
+                << "SetProcessDpiAwarenessContext() failed: "
+                << QSystemError::windowsString()
+                << "\nQt's default DPI awareness context is "
+                << "DPI_AWARENESS_CONTEXT_PER_MONITOR_AWARE_V2. If you know what you "
+                << "are doing, you can overwrite this default using qt.conf "
+                << "(https://doc.qt.io/qt-6/highdpi.html#configuring-windows).";
+            return false;
+        }
+        QWindowsContextPrivate::m_v2DpiAware
+            = processDpiAwareness() == QtWindows::DpiAwareness::PerMonitorVersion2;
+        return true;
+    }
+
+    return false; // Windows 7
 }
 
 bool QWindowsContext::isDarkMode()
@@ -936,7 +990,7 @@ void QWindowsContext::forceNcCalcSize(HWND hwnd)
 bool QWindowsContext::systemParametersInfo(unsigned action, unsigned param, void *out,
                                            unsigned dpi)
 {
-    const BOOL result = QWindowsContext::user32dll.systemParametersInfoForDpi != nullptr && dpi != 0
+    const BOOL result = (QWindowsContext::user32dll.systemParametersInfoForDpi != nullptr && dpi != 0)
         ? QWindowsContext::user32dll.systemParametersInfoForDpi(action, param, out, 0, dpi)
         : SystemParametersInfo(action, param, out, 0);
     return result == TRUE;
@@ -1020,6 +1074,21 @@ static inline bool isInputMessage(UINT m)
         || (m >= WM_KEYFIRST && m <= WM_KEYLAST);
 }
 
+// Note: This only works within WM_NCCREATE
+static bool enableNonClientDpiScaling(HWND hwnd)
+{
+    bool result = false;
+    if (QWindowsContext::user32dll.enableNonClientDpiScaling && QWindowsContext::windowDpiAwareness(hwnd) == QtWindows::DpiAwareness::PerMonitor) {
+        result = QWindowsContext::user32dll.enableNonClientDpiScaling(hwnd) != FALSE;
+        if (!result) {
+            const DWORD errorCode = GetLastError();
+            qErrnoWarning(int(errorCode), "EnableNonClientDpiScaling() failed for HWND %p (%lu)",
+                          hwnd, errorCode);
+        }
+    }
+    return result;
+}
+
 /*!
      \brief Main windows procedure registered for windows.
 
@@ -1505,13 +1574,8 @@ void QWindowsContext::handleExitSizeMove(QWindow *window)
         ? QEvent::MouseButtonRelease : QEvent::NonClientAreaMouseButtonRelease;
     for (Qt::MouseButton button : {Qt::LeftButton, Qt::RightButton, Qt::MiddleButton}) {
         if (appButtons.testFlag(button) && !currentButtons.testFlag(button)) {
-            if (type == QEvent::NonClientAreaMouseButtonRelease) {
-                QWindowSystemInterface::handleFrameStrutMouseEvent(window, localPos, globalPos,
-                    currentButtons, button, type, keyboardModifiers);
-            } else {
-                QWindowSystemInterface::handleMouseEvent(window, localPos, globalPos,
-                    currentButtons, button, type, keyboardModifiers);
-            }
+            QWindowSystemInterface::handleMouseEvent(window, localPos, globalPos,
+                currentButtons, button, type, keyboardModifiers);
         }
     }
     if (d->m_systemInfo & QWindowsContext::SI_SupportsPointer)
diff --git a/src/plugins/platforms/windows/qwindowscontext.h b/src/plugins/platforms/windows/qwindowscontext.h
index 7b71c419..d35c58de 100644
--- a/src/plugins/platforms/windows/qwindowscontext.h
+++ b/src/plugins/platforms/windows/qwindowscontext.h
@@ -66,17 +66,17 @@ struct QWindowsUser32DLL
     typedef BOOL (WINAPI *RemoveClipboardFormatListener)(HWND);
     typedef BOOL (WINAPI *GetDisplayAutoRotationPreferences)(DWORD *);
     typedef BOOL (WINAPI *SetDisplayAutoRotationPreferences)(DWORD);
-    typedef BOOL (WINAPI *AdjustWindowRectEx)(LPRECT,DWORD,BOOL,DWORD);
     typedef BOOL (WINAPI *AdjustWindowRectExForDpi)(LPRECT,DWORD,BOOL,DWORD,UINT);
     typedef BOOL (WINAPI *EnableNonClientDpiScaling)(HWND);
-    typedef int  (WINAPI *GetWindowDpiAwarenessContext)(HWND);
-    typedef int  (WINAPI *GetAwarenessFromDpiAwarenessContext)(int);
+    typedef DPI_AWARENESS_CONTEXT (WINAPI *GetWindowDpiAwarenessContext)(HWND);
+    typedef DPI_AWARENESS (WINAPI *GetAwarenessFromDpiAwarenessContext)(int);
     typedef BOOL (WINAPI *SystemParametersInfoForDpi)(UINT, UINT, PVOID, UINT, UINT);
     typedef int  (WINAPI *GetDpiForWindow)(HWND);
     typedef BOOL (WINAPI *GetSystemMetricsForDpi)(INT, UINT);
-    typedef BOOL (WINAPI *AreDpiAwarenessContextsEqual)(int, HANDLE);
-    typedef int (WINAPI *GetThreadDpiAwarenessContext)();
-
+    typedef BOOL (WINAPI *AreDpiAwarenessContextsEqual)(DPI_AWARENESS_CONTEXT, DPI_AWARENESS_CONTEXT);
+    typedef DPI_AWARENESS_CONTEXT (WINAPI *GetThreadDpiAwarenessContext)();
+    typedef BOOL (WINAPI *IsValidDpiAwarenessContext)(DPI_AWARENESS_CONTEXT);
+    
     // Windows pointer functions (Windows 8 or later).
     EnableMouseInPointer enableMouseInPointer = nullptr;
     GetPointerType getPointerType = nullptr;
@@ -95,6 +95,7 @@ struct QWindowsUser32DLL
     // Windows 10 version 1607 onwards
     GetDpiForWindow getDpiForWindow = nullptr;
     GetThreadDpiAwarenessContext getThreadDpiAwarenessContext = nullptr;
+    IsValidDpiAwarenessContext isValidDpiAwarenessContext = nullptr;
 
     // Windows 10 version 1703 onwards
     SetProcessDpiAwarenessContext setProcessDpiAwarenessContext = nullptr;
@@ -109,7 +110,6 @@ struct QWindowsUser32DLL
     GetDisplayAutoRotationPreferences getDisplayAutoRotationPreferences = nullptr;
     SetDisplayAutoRotationPreferences setDisplayAutoRotationPreferences = nullptr;
 
-    AdjustWindowRectEx adjustWindowRectEx = nullptr;
     AdjustWindowRectExForDpi adjustWindowRectExForDpi = nullptr;
     EnableNonClientDpiScaling enableNonClientDpiScaling = nullptr;
     GetWindowDpiAwarenessContext getWindowDpiAwarenessContext = nullptr;
@@ -204,9 +204,10 @@ public:
     QSharedPointer<QWindowCreationContext> windowCreationContext() const;
 
     static void setTabletAbsoluteRange(int a);
-    void setProcessDpiAwareness(QtWindows::ProcessDpiAwareness dpiAwareness);
-    static int processDpiAwareness();
-    bool setProcessDpiV2Awareness();
+
+    static bool setProcessDpiAwareness(QtWindows::DpiAwareness dpiAwareness);
+    static QtWindows::DpiAwareness processDpiAwareness();
+    static QtWindows::DpiAwareness windowDpiAwareness(HWND hwnd);
 
     static bool isDarkMode();
 
diff --git a/src/plugins/platforms/windows/qwindowsdialoghelpers.cpp b/src/plugins/platforms/windows/qwindowsdialoghelpers.cpp
index 51bd9f0c..eb9cfa73 100644
--- a/src/plugins/platforms/windows/qwindowsdialoghelpers.cpp
+++ b/src/plugins/platforms/windows/qwindowsdialoghelpers.cpp
@@ -43,26 +43,6 @@ QT_BEGIN_NAMESPACE
 
 using namespace Qt::StringLiterals;
 
-#ifndef QT_NO_DEBUG_STREAM
-/* Output UID (IID, CLSID) as C++ constants.
- * The constants are contained in the Windows SDK libs, but not for MinGW. */
-static inline QString guidToString(const GUID &g)
-{
-    QString rc;
-    QTextStream str(&rc);
-    str.setIntegerBase(16);
-    str.setNumberFlags(str.numberFlags() | QTextStream::ShowBase);
-    str << '{' << g.Data1 << ", " << g.Data2 << ", " << g.Data3;
-    str.setFieldWidth(2);
-    str.setFieldAlignment(QTextStream::AlignRight);
-    str.setPadChar(u'0');
-    str << ",{" << g.Data4[0] << ", " << g.Data4[1]  << ", " << g.Data4[2]  << ", " << g.Data4[3]
-        << ", " << g.Data4[4] << ", " << g.Data4[5]  << ", " << g.Data4[6]  << ", " << g.Data4[7]
-        << "}};";
-    return rc;
-}
-#endif // !QT_NO_DEBUG_STREAM
-
 // Return an allocated wchar_t array from a QString, reserve more memory if desired.
 static wchar_t *qStringToWCharArray(const QString &s, size_t reserveSize = 0)
 {
diff --git a/src/plugins/platforms/windows/qwindowsintegration.cpp b/src/plugins/platforms/windows/qwindowsintegration.cpp
index 923e515b..628b2f32 100644
--- a/src/plugins/platforms/windows/qwindowsintegration.cpp
+++ b/src/plugins/platforms/windows/qwindowsintegration.cpp
@@ -144,7 +144,7 @@ bool parseIntOption(const QString &parameter,const QLatin1StringView &option,
     const auto valueRef = QStringView{parameter}.right(valueLength);
     const int value = valueRef.toInt(&ok);
     if (ok) {
-        if (value >= minimumValue && value <= maximumValue)
+        if (value >= int(minimumValue) && value <= int(maximumValue))
             *target = static_cast<IntType>(value);
         else {
             qWarning() << "Value" << value << "for option" << option << "out of range"
@@ -161,7 +161,7 @@ using DarkModeHandling = QNativeInterface::Private::QWindowsApplication::DarkMod
 
 static inline unsigned parseOptions(const QStringList &paramList,
                                     int *tabletAbsoluteRange,
-                                    QtWindows::ProcessDpiAwareness *dpiAwareness,
+                                    QtWindows::DpiAwareness *dpiAwareness,
                                     DarkModeHandling *darkModeHandling)
 {
     unsigned options = 0;
@@ -192,7 +192,8 @@ static inline unsigned parseOptions(const QStringList &paramList,
             options |= QWindowsIntegration::DontPassOsMouseEventsSynthesizedFromTouch;
         } else if (parseIntOption(param, "verbose"_L1, 0, INT_MAX, &QWindowsContext::verbose)
             || parseIntOption(param, "tabletabsoluterange"_L1, 0, INT_MAX, tabletAbsoluteRange)
-            || parseIntOption(param, "dpiawareness"_L1, QtWindows::ProcessDpiUnaware, QtWindows::ProcessPerMonitorV2DpiAware, dpiAwareness)) {
+            || parseIntOption(param, "dpiawareness"_L1, QtWindows::DpiAwareness::Invalid,
+                    QtWindows::DpiAwareness::PerMonitorVersion2, dpiAwareness)) {
         } else if (param == u"menus=native") {
             options |= QWindowsIntegration::AlwaysUseNativeMenus;
         } else if (param == u"menus=none") {
@@ -222,7 +223,7 @@ void QWindowsIntegrationPrivate::parseOptions(QWindowsIntegration *q, const QStr
 
     static bool dpiAwarenessSet = false;
     // Default to per-monitor-v2 awareness (if available)
-    QtWindows::ProcessDpiAwareness dpiAwareness = QtWindows::ProcessPerMonitorV2DpiAware;
+    QtWindows::DpiAwareness dpiAwareness = QtWindows::DpiAwareness::PerMonitorVersion2;
 
     int tabletAbsoluteRange = -1;
     DarkModeHandling darkModeHandling = DarkModeHandlingFlag::DarkModeWindowFrames
@@ -241,22 +242,9 @@ void QWindowsIntegrationPrivate::parseOptions(QWindowsIntegration *q, const QStr
 
     if (!dpiAwarenessSet) { // Set only once in case of repeated instantiations of QGuiApplication.
         if (!QCoreApplication::testAttribute(Qt::AA_PluginApplication)) {
-            if (dpiAwareness == QtWindows::ProcessPerMonitorV2DpiAware) {
-                // DpiAwareV2 requires using new API
-                if (m_context.setProcessDpiV2Awareness()) {
-                    qCDebug(lcQpaWindow, "DpiAwareness: DPI_AWARENESS_CONTEXT_PER_MONITOR_AWARE_V2");
-                    dpiAwarenessSet = true;
-                } else {
-                    // fallback to old API
-                    dpiAwareness = QtWindows::ProcessPerMonitorDpiAware;
-                }
-            }
-
-            if (!dpiAwarenessSet) {
-                m_context.setProcessDpiAwareness(dpiAwareness);
-                qCDebug(lcQpaWindow) << "DpiAwareness=" << dpiAwareness
-                    << "effective process DPI awareness=" << QWindowsContext::processDpiAwareness();
-            }
+            m_context.setProcessDpiAwareness(dpiAwareness);
+            qCDebug(lcQpaWindow) << "DpiAwareness=" << dpiAwareness
+                << "effective process DPI awareness=" << QWindowsContext::processDpiAwareness();
         }
         dpiAwarenessSet = true;
     }
diff --git a/src/plugins/platforms/windows/qwindowsmousehandler.cpp b/src/plugins/platforms/windows/qwindowsmousehandler.cpp
index 28c88ab7..e74afc6a 100644
--- a/src/plugins/platforms/windows/qwindowsmousehandler.cpp
+++ b/src/plugins/platforms/windows/qwindowsmousehandler.cpp
@@ -16,7 +16,8 @@
 #include <QtGui/qcursor.h>
 
 #include <QtCore/qdebug.h>
-#include <QtCore/qscopedpointer.h>
+
+#include <memory>
 
 #include <windowsx.h>
 
@@ -285,19 +286,16 @@ bool QWindowsMouseHandler::translateMouseEvent(QWindow *window, HWND hwnd,
     if (m_lastEventType == QEvent::NonClientAreaMouseButtonPress
             && (mouseEvent.type == QEvent::NonClientAreaMouseMove || mouseEvent.type == QEvent::MouseMove)
             && (m_lastEventButton & buttons) == 0) {
-            if (mouseEvent.type == QEvent::NonClientAreaMouseMove) {
-                QWindowSystemInterface::handleFrameStrutMouseEvent(window, device, clientPosition, globalPosition, buttons, m_lastEventButton,
-                                                                   QEvent::NonClientAreaMouseButtonRelease, keyModifiers, source);
-            } else {
-                QWindowSystemInterface::handleMouseEvent(window, device, clientPosition, globalPosition, buttons, m_lastEventButton,
-                                                         QEvent::MouseButtonRelease, keyModifiers, source);
-            }
+            auto releaseType = mouseEvent.type == QEvent::NonClientAreaMouseMove ?
+                QEvent::NonClientAreaMouseButtonRelease : QEvent::MouseButtonRelease;
+            QWindowSystemInterface::handleMouseEvent(window, device, clientPosition, globalPosition, buttons, m_lastEventButton,
+                                                     releaseType, keyModifiers, source);
     }
     m_lastEventType = mouseEvent.type;
     m_lastEventButton = mouseEvent.button;
 
     if (mouseEvent.type >= QEvent::NonClientAreaMouseMove && mouseEvent.type <= QEvent::NonClientAreaMouseButtonDblClick) {
-        QWindowSystemInterface::handleFrameStrutMouseEvent(window, device, clientPosition,
+        QWindowSystemInterface::handleMouseEvent(window, device, clientPosition,
                                                            globalPosition, buttons,
                                                            mouseEvent.button, mouseEvent.type,
                                                            keyModifiers, source);
@@ -577,15 +575,14 @@ bool QWindowsMouseHandler::translateTouchEvent(QWindow *window, HWND,
     const QRect screenGeometry = screen->geometry();
 
     const int winTouchPointCount = int(msg.wParam);
-    QScopedArrayPointer<TOUCHINPUT> winTouchInputs(new TOUCHINPUT[winTouchPointCount]);
-    memset(winTouchInputs.data(), 0, sizeof(TOUCHINPUT) * size_t(winTouchPointCount));
+    const auto winTouchInputs = std::make_unique<TOUCHINPUT[]>(winTouchPointCount);
 
     QTouchPointList touchPoints;
     touchPoints.reserve(winTouchPointCount);
     QEventPoint::States allStates;
 
     GetTouchInputInfo(reinterpret_cast<HTOUCHINPUT>(msg.lParam),
-                      UINT(msg.wParam), winTouchInputs.data(), sizeof(TOUCHINPUT));
+                      UINT(msg.wParam), winTouchInputs.get(), sizeof(TOUCHINPUT));
     for (int i = 0; i < winTouchPointCount; ++i) {
         const TOUCHINPUT &winTouchInput = winTouchInputs[i];
         int id = m_touchInputIDToTouchPointID.value(winTouchInput.dwID, -1);
diff --git a/src/plugins/platforms/windows/qwindowspointerhandler.cpp b/src/plugins/platforms/windows/qwindowspointerhandler.cpp
index 6a8dfdde..5a3942e2 100644
--- a/src/plugins/platforms/windows/qwindowspointerhandler.cpp
+++ b/src/plugins/platforms/windows/qwindowspointerhandler.cpp
@@ -441,6 +441,8 @@ bool QWindowsPointerHandler::translateTouchEvent(QWindow *window, HWND hwnd,
             if (id != -1)
                 m_lastTouchPoints.remove(id);
         }
+        // Send LeaveEvent to reset hover when the last finger leaves the touch screen (QTBUG-62912)
+        QWindowSystemInterface::handleEnterLeaveEvent(nullptr, window);
     }
 
     // Only handle down/up/update, ignore others like WM_POINTERENTER, WM_POINTERLEAVE, etc.
@@ -820,19 +822,16 @@ bool QWindowsPointerHandler::translateMouseEvent(QWindow *window,
     if (m_lastEventType == QEvent::NonClientAreaMouseButtonPress
             && (mouseEvent.type == QEvent::NonClientAreaMouseMove || mouseEvent.type == QEvent::MouseMove)
             && (m_lastEventButton & mouseButtons) == 0) {
-            if (mouseEvent.type == QEvent::NonClientAreaMouseMove) {
-                QWindowSystemInterface::handleFrameStrutMouseEvent(window, device, localPos, globalPos, mouseButtons, m_lastEventButton,
-                                                                   QEvent::NonClientAreaMouseButtonRelease, keyModifiers, source);
-            } else {
-                QWindowSystemInterface::handleMouseEvent(window, device, localPos, globalPos, mouseButtons, m_lastEventButton,
-                                                         QEvent::MouseButtonRelease, keyModifiers, source);
-            }
+            auto releaseType = mouseEvent.type == QEvent::NonClientAreaMouseMove ?
+                QEvent::NonClientAreaMouseButtonRelease : QEvent::MouseButtonRelease;
+            QWindowSystemInterface::handleMouseEvent(window, device, localPos, globalPos, mouseButtons, m_lastEventButton,
+                                                     releaseType, keyModifiers, source);
     }
     m_lastEventType = mouseEvent.type;
     m_lastEventButton = mouseEvent.button;
 
     if (mouseEvent.type >= QEvent::NonClientAreaMouseMove && mouseEvent.type <= QEvent::NonClientAreaMouseButtonDblClick) {
-        QWindowSystemInterface::handleFrameStrutMouseEvent(window, device, localPos, globalPos, mouseButtons,
+        QWindowSystemInterface::handleMouseEvent(window, device, localPos, globalPos, mouseButtons,
                                                            mouseEvent.button, mouseEvent.type, keyModifiers, source);
         return false; // Allow further event processing
     }
diff --git a/src/plugins/platforms/windows/qwindowstheme.cpp b/src/plugins/platforms/windows/qwindowstheme.cpp
index 2f3be0c1..927f7669 100644
--- a/src/plugins/platforms/windows/qwindowstheme.cpp
+++ b/src/plugins/platforms/windows/qwindowstheme.cpp
@@ -223,6 +223,22 @@ static QColor placeHolderColor(QColor textColor)
     return textColor;
 }
 
+[[maybe_unused]] [[nodiscard]] static inline QColor qt_accentColor()
+{
+    const QWinRegistryKey registry(HKEY_CURRENT_USER, LR"(Software\Microsoft\Windows\DWM)");
+    if (!registry.isValid())
+        return {};
+    const QVariant value = registry.value(L"AccentColor");
+    if (!value.isValid())
+        return {};
+    // The retrieved value is in the #AABBGGRR format, we need to
+    // convert it to the #AARRGGBB format which Qt expects.
+    const QColor abgr = QColor::fromRgba(qvariant_cast<DWORD>(value));
+    if (!abgr.isValid())
+        return {};
+    return QColor::fromRgb(abgr.blue(), abgr.green(), abgr.red(), abgr.alpha());
+}
+
 /*
     This is used when the theme is light mode, and when the theme is dark but the
     application doesn't support dark mode. In the latter case, we need to check.
@@ -231,24 +247,26 @@ static void populateLightSystemBasePalette(QPalette &result)
 {
     QColor background = getSysColor(COLOR_BTNFACE);
     QColor textColor = getSysColor(COLOR_WINDOWTEXT);
-    QColor accent = getSysColor(COLOR_HIGHLIGHT);
+    QColor accent = qt_accentColor();
+    QColor accentDarkest = accent.darker(120 * 120 * 120);
 
 #if QT_CONFIG(cpp_winrt)
-
     if (IsWindows10OrGreater())
     {
         // respect the Windows 11 accent color
         using namespace winrt::Windows::UI::ViewManagement;
         const auto settings = UISettings();
+
         accent = getSysColor(settings.GetColorValue(UIColorType::Accent));
+        accentDarkest = getSysColor(settings.GetColorValue(UIColorType::AccentDark3));    
     }
-    
 #endif
 
+    const QColor linkColor = accent;
     const QColor btnFace = background;
     const QColor btnHighlight = getSysColor(COLOR_BTNHIGHLIGHT);
 
-    result.setColor(QPalette::Highlight, accent);
+    result.setColor(QPalette::Highlight, getSysColor(COLOR_HIGHLIGHT));
     result.setColor(QPalette::WindowText, getSysColor(COLOR_WINDOWTEXT));
     result.setColor(QPalette::Button, btnFace);
     result.setColor(QPalette::Light, btnHighlight);
@@ -263,9 +281,10 @@ static void populateLightSystemBasePalette(QPalette &result)
     result.setColor(QPalette::Midlight, getSysColor(COLOR_3DLIGHT));
     result.setColor(QPalette::Shadow, getSysColor(COLOR_3DDKSHADOW));
     result.setColor(QPalette::HighlightedText, getSysColor(COLOR_HIGHLIGHTTEXT));
+    result.setColor(QPalette::Accent, accent);
 
-    result.setColor(QPalette::Link, Qt::blue);
-    result.setColor(QPalette::LinkVisited, Qt::magenta);
+    result.setColor(QPalette::Link, linkColor);
+    result.setColor(QPalette::LinkVisited, accentDarkest);
     result.setColor(QPalette::Inactive, QPalette::Button, result.button().color());
     result.setColor(QPalette::Inactive, QPalette::Window, result.window().color());
     result.setColor(QPalette::Inactive, QPalette::Light, result.light().color());
@@ -279,21 +298,20 @@ static void populateDarkSystemBasePalette(QPalette &result)
 {
     QColor foreground = Qt::white;
     QColor background = QColor(0x1E, 0x1E, 0x1E);
-    QColor accent = QColor(0x00, 0x55, 0xff);
+    QColor accent = qt_accentColor();
     QColor accentDark = accent.darker(120);
     QColor accentDarker = accentDark.darker(120);
     QColor accentDarkest = accentDarker.darker(120);
     QColor accentLight = accent.lighter(120);
     QColor accentLighter = accentLight.lighter(120);
     QColor accentLightest = accentLighter.lighter(120);
-    QColor linkColor = Qt::blue;
 
 #if QT_CONFIG(cpp_winrt)
-
     if (IsWindows10OrGreater())
     {
         using namespace winrt::Windows::UI::ViewManagement;
         const auto settings = UISettings();
+
         // We have to craft a palette from these colors. The settings.UIElementColor(UIElementType) API
         // returns the old system colors, not the dark mode colors. If the background is black (which it
         // usually), then override it with a dark gray instead so that we can go up and down the lightness.
@@ -304,6 +322,7 @@ static void populateDarkSystemBasePalette(QPalette &result)
                 systemBackground = QColor(0x1E, 0x1E, 0x1E);
             return systemBackground;
         }();
+
         accent = getSysColor(settings.GetColorValue(UIColorType::Accent));
         accentDark = getSysColor(settings.GetColorValue(UIColorType::AccentDark1));
         accentDarker = getSysColor(settings.GetColorValue(UIColorType::AccentDark2));
@@ -311,11 +330,10 @@ static void populateDarkSystemBasePalette(QPalette &result)
         accentLight = getSysColor(settings.GetColorValue(UIColorType::AccentLight1));
         accentLighter = getSysColor(settings.GetColorValue(UIColorType::AccentLight2));
         accentLightest = getSysColor(settings.GetColorValue(UIColorType::AccentLight3));
-        linkColor = accent;
     }
-
 #endif
 
+    const QColor linkColor = accent;
     const QColor buttonColor = background.lighter(200);
 
     result.setColor(QPalette::All, QPalette::WindowText, foreground);
@@ -341,6 +359,7 @@ static void populateDarkSystemBasePalette(QPalette &result)
     result.setColor(QPalette::All, QPalette::ToolTipBase, buttonColor);
     result.setColor(QPalette::All, QPalette::ToolTipText, foreground.darker(120));
     result.setColor(QPalette::All, QPalette::PlaceholderText, placeHolderColor(foreground));
+    result.setColor(QPalette::All, QPalette::Accent, accent);
 }
 
 static inline QPalette toolTipPalette(const QPalette &systemPalette, bool light)
@@ -529,7 +548,6 @@ void QWindowsTheme::clearPalettes()
 
 void QWindowsTheme::refreshPalettes()
 {
-
     if (!QGuiApplication::desktopSettingsAware())
         return;
     const bool light =
@@ -541,39 +559,24 @@ void QWindowsTheme::refreshPalettes()
     m_palettes[MenuPalette] = new QPalette(menuPalette(*m_palettes[SystemPalette], light));
     m_palettes[MenuBarPalette] = menuBarPalette(*m_palettes[MenuPalette], light);
     if (!light) {
+        QColor accent = qt_accentColor();
+        QColor accentLight = accent.lighter(120);
+        QColor accentDarkest = accent.darker(120 * 120 * 120);
+
 #if QT_CONFIG(cpp_winrt)
         if (IsWindows10OrGreater())
         {
             using namespace winrt::Windows::UI::ViewManagement;
             const auto settings = UISettings();
-            const QColor accent = getSysColor(settings.GetColorValue(UIColorType::Accent));
-            const QColor accentLight = getSysColor(settings.GetColorValue(UIColorType::AccentLight1));
-            const QColor accentDarkest = getSysColor(settings.GetColorValue(UIColorType::AccentDark3));
-            m_palettes[CheckBoxPalette] = new QPalette(*m_palettes[SystemPalette]);
-            m_palettes[CheckBoxPalette]->setColor(QPalette::Active, QPalette::Base, accent);
-            m_palettes[CheckBoxPalette]->setColor(QPalette::Active, QPalette::Button, accentLight);
-            m_palettes[CheckBoxPalette]->setColor(QPalette::Inactive, QPalette::Base, accentDarkest);
-        }
-        else
-        {
-            m_palettes[ButtonPalette] = new QPalette(*m_palettes[SystemPalette]);
-            m_palettes[ButtonPalette]->setColor(QPalette::Button, QColor(0x666666u));
-            const QColor checkBoxBlue(0x0078d7u);
-            m_palettes[CheckBoxPalette] = new QPalette(*m_palettes[SystemPalette]);
-            m_palettes[CheckBoxPalette]->setColor(QPalette::Base, checkBoxBlue);
-            m_palettes[CheckBoxPalette]->setColor(QPalette::Button, checkBoxBlue);
-            m_palettes[CheckBoxPalette]->setColor(QPalette::ButtonText, Qt::white);
-        }
-        
-#else
-        m_palettes[ButtonPalette] = new QPalette(*m_palettes[SystemPalette]);
-        m_palettes[ButtonPalette]->setColor(QPalette::Button, QColor(0x666666u));
-        const QColor checkBoxBlue(0x0078d7u);
-        m_palettes[CheckBoxPalette] = new QPalette(*m_palettes[SystemPalette]);
-        m_palettes[CheckBoxPalette]->setColor(QPalette::Base, checkBoxBlue);
-        m_palettes[CheckBoxPalette]->setColor(QPalette::Button, checkBoxBlue);
-        m_palettes[CheckBoxPalette]->setColor(QPalette::ButtonText, Qt::white);
+            accent = getSysColor(settings.GetColorValue(UIColorType::Accent));
+            accentLight = getSysColor(settings.GetColorValue(UIColorType::AccentLight1));
+            accentDarkest = getSysColor(settings.GetColorValue(UIColorType::AccentDark3));    
+        }    
 #endif
+        m_palettes[CheckBoxPalette] = new QPalette(*m_palettes[SystemPalette]);
+        m_palettes[CheckBoxPalette]->setColor(QPalette::Active, QPalette::Base, accent);
+        m_palettes[CheckBoxPalette]->setColor(QPalette::Active, QPalette::Button, accentLight);
+        m_palettes[CheckBoxPalette]->setColor(QPalette::Inactive, QPalette::Base, accentDarkest);
         m_palettes[RadioButtonPalette] = new QPalette(*m_palettes[CheckBoxPalette]);
     }
 }
@@ -599,6 +602,8 @@ QPalette QWindowsTheme::systemPalette(Qt::ColorScheme colorScheme)
                         result.color(QPalette::Inactive, QPalette::Window));
         result.setColor(QPalette::Inactive, QPalette::HighlightedText,
                         result.color(QPalette::Inactive, QPalette::Text));
+        result.setColor(QPalette::Inactive, QPalette::Accent,
+                        result.color(QPalette::Inactive, QPalette::Window));
     }
 
     const QColor disabled = mixColors(result.windowText().color(), result.button().color());
@@ -612,6 +617,7 @@ QPalette QWindowsTheme::systemPalette(Qt::ColorScheme colorScheme)
     result.setColor(QPalette::Disabled, QPalette::ButtonText, disabled);
     result.setColor(QPalette::Disabled, QPalette::Highlight, result.color(QPalette::Highlight));
     result.setColor(QPalette::Disabled, QPalette::HighlightedText, result.color(QPalette::HighlightedText));
+    result.setColor(QPalette::Disabled, QPalette::Accent, disabled);
     result.setColor(QPalette::Disabled, QPalette::Base, result.window().color());
     return result;
 }
diff --git a/src/plugins/platforms/windows/qwindowswindow.cpp b/src/plugins/platforms/windows/qwindowswindow.cpp
index 55fbd468..92eb870c 100644
--- a/src/plugins/platforms/windows/qwindowswindow.cpp
+++ b/src/plugins/platforms/windows/qwindowswindow.cpp
@@ -530,7 +530,8 @@ static inline void updateGLWindowSettings(const QWindow *w, HWND hwnd, Qt::Windo
         return QWindowsContext::user32dll.getSystemMetricsForDpi(SM_CXSIZEFRAME, dpi)
                + QWindowsContext::user32dll.getSystemMetricsForDpi(SM_CXPADDEDBORDER, dpi);
     }
-    return 0;
+    
+    return GetSystemMetrics(SM_CXSIZEFRAME) + GetSystemMetrics(SM_CXPADDEDBORDER);
 }
 
 /*!
@@ -810,15 +811,8 @@ void WindowCreationData::fromWindow(const QWindow *w, const Qt::WindowFlags flag
         style = WS_CHILD;
     }
 
-    // if (!testAttribute(Qt::WA_PaintUnclipped))
-    // ### Commented out for now as it causes some problems, but
-    // this should be correct anyway, so dig some more into this
-#ifdef Q_FLATTEN_EXPOSE
-    if (windowIsOpenGL(w)) // a bit incorrect since the is-opengl status may change from false to true at any time later on
-        style |= WS_CLIPSIBLINGS | WS_CLIPCHILDREN; // see SetPixelFormat
-#else
     style |= WS_CLIPSIBLINGS | WS_CLIPCHILDREN ;
-#endif
+
     if (topLevel) {
         if ((type == Qt::Window || dialog || tool)) {
             if (!(flags & Qt::FramelessWindowHint)) {
@@ -1048,8 +1042,7 @@ QMargins QWindowsGeometryHint::frameOnPrimaryScreen(const QWindow *w, DWORD styl
         return {};
     RECT rect = {0,0,0,0};
     style &= ~DWORD(WS_OVERLAPPED); // Not permitted, see docs.
-    if (QWindowsContext::user32dll.adjustWindowRectEx &&
-        QWindowsContext::user32dll.adjustWindowRectEx(&rect, style, FALSE, exStyle) == FALSE)
+    if (AdjustWindowRectEx(&rect, style, FALSE, exStyle) == FALSE)
         qErrnoWarning("%s: AdjustWindowRectEx failed", __FUNCTION__);
     const QMargins result(qAbs(rect.left), qAbs(rect.top),
                           qAbs(rect.right), qAbs(rect.bottom));
@@ -1997,7 +1990,7 @@ void QWindowsWindow::handleDpiScaledSize(WPARAM wParam, LPARAM lParam, LRESULT *
     // add the margins for the new DPI to the window size.
     const UINT dpi = UINT(wParam);
     const qreal scale = dpiRelativeScale(dpi);
-    const QMargins margins = fullFrameMargins();
+    const QMargins margins = QWindowsGeometryHint::frame(window(), style(), exStyle(), dpi);
     if (!(m_data.flags & Qt::FramelessWindowHint)) {
         // We need to update the custom margins to match the current DPI, because
         // we don't want our users manually hook into this message just to set a
@@ -2007,7 +2000,7 @@ void QWindowsWindow::handleDpiScaledSize(WPARAM wParam, LPARAM lParam, LRESULT *
         m_data.customMargins *= scale;
     }
 
-    const QSize windowSize = (geometry().size() * scale).grownBy((margins * scale) + customMargins());
+    const QSize windowSize = (geometry().size() * scale).grownBy(margins + customMargins());
     SIZE *size = reinterpret_cast<SIZE *>(lParam);
     size->cx = windowSize.width();
     size->cy = windowSize.height();
@@ -2016,52 +2009,53 @@ void QWindowsWindow::handleDpiScaledSize(WPARAM wParam, LPARAM lParam, LRESULT *
 
 void QWindowsWindow::handleDpiChanged(HWND hwnd, WPARAM wParam, LPARAM lParam)
 {
-    if (QWindowsContext::user32dll.getDpiForWindow) {
-        const UINT dpi = QWindowsContext::user32dll.getDpiForWindow(hwnd);
-        const qreal scale = qreal(dpi) / qreal(savedDpi());
-        setSavedDpi(dpi);
+    const UINT dpi = HIWORD(wParam);
+    const qreal scale = dpiRelativeScale(dpi);
+    setSavedDpi(dpi);
+    // Send screen change first, so that the new screen is set during any following resize
+    checkForScreenChanged(QWindowsWindow::FromDpiChange);
 
-        // Send screen change first, so that the new screen is set during any following resize
-        checkForScreenChanged(QWindowsWindow::FromDpiChange);
+    if (!IsZoomed(hwnd))
+        m_data.restoreGeometry.setSize(m_data.restoreGeometry.size() * scale);
 
-        // We get WM_DPICHANGED in one of two situations:
-        //
-        // 1. The DPI change is a "spontaneous" DPI change as a result of e.g.
-        // the user dragging the window to a new screen. In this case Windows
-        // first sends WM_GETDPISCALEDSIZE, where we set the new window size,
-        // followed by this event where we apply the suggested window geometry
-        // to the native window. This will make sure the window tracks the mouse
-        // cursor during screen change, and also that the window size is scaled
-        // according to the DPI change.
-        //
-        // 2. The DPI change is a result of a setGeometry() call. In this case
-        // Qt has already scaled the window size for the new DPI. Further, Windows
-        // does not call WM_GETDPISCALEDSIZE, and also applies its own scaling
-        // to the already scaled window size. Since there is no need to set the
-        // window geometry again, and the provided geometry is incorrect, we omit
-        // making the SetWindowPos() call.
-        if (!m_inSetgeometry) {
-            updateFullFrameMargins();
-            const auto prcNewWindow = reinterpret_cast<RECT *>(lParam);
-            SetWindowPos(hwnd, nullptr, prcNewWindow->left, prcNewWindow->top,
-                         prcNewWindow->right - prcNewWindow->left,
-                         prcNewWindow->bottom - prcNewWindow->top, SWP_NOZORDER | SWP_NOACTIVATE);
-            // If the window does not have a frame, WM_MOVE and WM_SIZE won't be
-            // called which prevents the content from being scaled appropriately
-            // after a DPI change.
-            if (m_data.flags & Qt::FramelessWindowHint)
-                handleGeometryChange();
-        }
-
-        // Re-apply mask now that we have a new DPI, which have resulted in
-        // a new scale factor.
-        setMask(QHighDpi::toNativeLocalRegion(window()->mask(), window()));
+    // We get WM_DPICHANGED in one of two situations:
+    //
+    // 1. The DPI change is a "spontaneous" DPI change as a result of e.g.
+    // the user dragging the window to a new screen. In this case Windows
+    // first sends WM_GETDPISCALEDSIZE, where we set the new window size,
+    // followed by this event where we apply the suggested window geometry
+    // to the native window. This will make sure the window tracks the mouse
+    // cursor during screen change, and also that the window size is scaled
+    // according to the DPI change.
+    //
+    // 2. The DPI change is a result of a setGeometry() call. In this case
+    // Qt has already scaled the window size for the new DPI. Further, Windows
+    // does not call WM_GETDPISCALEDSIZE, and also applies its own scaling
+    // to the already scaled window size. Since there is no need to set the
+    // window geometry again, and the provided geometry is incorrect, we omit
+    // making the SetWindowPos() call.
+    if (!m_inSetgeometry) {
+        updateFullFrameMargins();
+        const auto prcNewWindow = reinterpret_cast<RECT *>(lParam);
+        SetWindowPos(hwnd, nullptr, prcNewWindow->left, prcNewWindow->top,
+                     prcNewWindow->right - prcNewWindow->left,
+                     prcNewWindow->bottom - prcNewWindow->top, SWP_NOZORDER | SWP_NOACTIVATE);
+        // If the window does not have a frame, WM_MOVE and WM_SIZE won't be
+        // called which prevents the content from being scaled appropriately
+        // after a DPI change.
+        if (m_data.flags & Qt::FramelessWindowHint)
+            handleGeometryChange();
     }
+
+    // Re-apply mask now that we have a new DPI, which have resulted in
+    // a new scale factor.
+    setMask(QHighDpi::toNativeLocalRegion(window()->mask(), window()));
 }
 
 void QWindowsWindow::handleDpiChangedAfterParent(HWND hwnd)
 {
-    if (QWindowsContext::user32dll.getDpiForWindow) {
+    if (QWindowsContext::user32dll.getDpiForWindow)
+    {
         const UINT dpi = QWindowsContext::user32dll.getDpiForWindow(hwnd);
         const qreal scale = dpiRelativeScale(dpi);
         setSavedDpi(dpi);
@@ -2073,7 +2067,7 @@ void QWindowsWindow::handleDpiChangedAfterParent(HWND hwnd)
         QRect currentGeometry = geometry();
         QRect scaledGeometry = QRect(currentGeometry.topLeft() * scale, currentGeometry.size() * scale);
         setGeometry(scaledGeometry);
-    }
+    }    
 }
 
 static QRect normalFrameGeometry(HWND hwnd)
@@ -2328,7 +2322,6 @@ void QWindowsWindow::handleGeometryChange()
 {
     const QRect previousGeometry = m_data.geometry;
     m_data.geometry = geometry_sys();
-    updateFullFrameMargins();
     QWindowSystemInterface::handleGeometryChange(window(), m_data.geometry);
     // QTBUG-32121: OpenGL/normal windows (with exception of ANGLE
     // which we no longer support in Qt 6) do not receive expose
@@ -2604,11 +2597,7 @@ void QWindowsWindow::setWindowState_sys(Qt::WindowStates newState)
 
     if (stateChange & Qt::WindowFullScreen) {
         if (newState & Qt::WindowFullScreen) {
-#ifndef Q_FLATTEN_EXPOSE
             UINT newStyle = WS_CLIPCHILDREN | WS_CLIPSIBLINGS | WS_POPUP;
-#else
-            UINT newStyle = WS_POPUP;
-#endif
             // Save geometry and style to be restored when fullscreen
             // is turned off again, since on Windows, it is not a real
             // Window state but emulated by changing geometry and style.
@@ -2839,29 +2828,7 @@ void QWindowsWindow::calculateFullFrameMargins()
     const auto systemMargins = testFlag(DisableNonClientScaling)
         ? QWindowsGeometryHint::frameOnPrimaryScreen(window(), m_data.hwnd)
         : frameMargins_sys();
-
-    // QTBUG-113736: systemMargins depends on AdjustWindowRectExForDpi. This doesn't take into
-    // account possible external modifications to the titlebar, as with ExtendsContentIntoTitleBar()
-    // from the Windows App SDK. We can fix this by comparing the WindowRect (which includes the
-    // frame) to the ClientRect. If a 'typical' frame is detected, i.e. only the titlebar has been
-    // modified, we can safely adjust the frame by deducting the bottom margin to the total Y
-    // difference between the two rects, to get the actual size of the titlebar and prevent
-    // unwanted client area slicing.
-
-    RECT windowRect{};
-    RECT clientRect{};
-    GetWindowRect(handle(), &windowRect);
-    GetClientRect(handle(), &clientRect);
-    const int yDiff = (windowRect.bottom - windowRect.top) - clientRect.bottom;
-    const bool typicalFrame = (systemMargins.left() == systemMargins.right())
-            && (systemMargins.right() == systemMargins.bottom());
-
-    const QMargins adjustedMargins = typicalFrame ?
-          QMargins(systemMargins.left(), yDiff - systemMargins.bottom(),
-                   systemMargins.right(), systemMargins.bottom())
-            : systemMargins;
-
-    setFullFrameMargins(adjustedMargins + customMargins());
+    setFullFrameMargins(systemMargins + customMargins());
 }
 
 QMargins QWindowsWindow::frameMargins() const
@@ -2942,40 +2909,75 @@ void QWindowsWindow::setMask(const QRegion &region)
 void QWindowsWindow::requestActivateWindow()
 {
     qCDebug(lcQpaWindow) << __FUNCTION__ << this << window();
-    // 'Active' state handling is based in focus since it needs to work for
-    // child windows as well.
-    if (m_data.hwnd) {
-        const DWORD currentThread = GetCurrentThreadId();
-        bool attached = false;
-        DWORD foregroundThread = 0;
 
-        // QTBUG-14062, QTBUG-37435: Windows normally only flashes the taskbar entry
-        // when activating windows of inactive applications. Attach to the input of the
-        // currently active window while setting the foreground window to always activate
-        // the window when desired.
-        const auto activationBehavior = QWindowsIntegration::instance()->windowActivationBehavior();
-        if (QGuiApplication::applicationState() != Qt::ApplicationActive
-            && activationBehavior == QWindowsApplication::AlwaysActivateWindow) {
-            if (const HWND foregroundWindow = GetForegroundWindow()) {
-                foregroundThread = GetWindowThreadProcessId(foregroundWindow, nullptr);
-                if (foregroundThread && foregroundThread != currentThread)
-                    attached = AttachThreadInput(foregroundThread, currentThread, TRUE) == TRUE;
-                if (attached) {
-                    if (!window()->flags().testFlag(Qt::WindowStaysOnBottomHint)
-                        && !window()->flags().testFlag(Qt::WindowStaysOnTopHint)
-                        && window()->type() != Qt::ToolTip) {
-                        const UINT swpFlags = SWP_NOMOVE | SWP_NOSIZE | SWP_NOOWNERZORDER;
-                        SetWindowPos(m_data.hwnd, HWND_TOPMOST, 0, 0, 0, 0, swpFlags);
-                        SetWindowPos(m_data.hwnd, HWND_NOTOPMOST, 0, 0, 0, 0, swpFlags);
-                    }
-                }
-            }
-        }
+    if (!m_data.hwnd)
+        return;
+
+    const auto activationBehavior = QWindowsIntegration::instance()->windowActivationBehavior();
+    if (QGuiApplication::applicationState() == Qt::ApplicationActive
+        || activationBehavior != QWindowsApplication::AlwaysActivateWindow) {
         SetForegroundWindow(m_data.hwnd);
         SetFocus(m_data.hwnd);
-        if (attached)
-            AttachThreadInput(foregroundThread, currentThread, FALSE);
+        return;
     }
+
+    // Force activate this window. The following code will bring the window to the
+    // foreground and activate it. If the window is hidden, it will show up. If
+    // the window is minimized, it will restore to the previous position.
+
+    // But first we need some sanity checks.
+    if (m_data.flags & Qt::WindowStaysOnBottomHint) {
+        qCWarning(lcQpaWindow) <<
+            "Windows with Qt::WindowStaysOnBottomHint can't be brought to the foreground.";
+        return;
+    }
+    if (m_data.flags & Qt::WindowStaysOnTopHint) {
+        qCWarning(lcQpaWindow) <<
+            "Windows with Qt::WindowStaysOnTopHint will always be on the foreground.";
+        return;
+    }
+    if (window()->type() == Qt::ToolTip) {
+        qCWarning(lcQpaWindow) << "ToolTip windows should not be activated.";
+        return;
+    }
+
+    // We need to show the window first, otherwise we won't be able to bring it to front.
+    if (!IsWindowVisible(m_data.hwnd))
+        ShowWindow(m_data.hwnd, SW_SHOW);
+
+    if (IsIconic(m_data.hwnd)) {
+        ShowWindow(m_data.hwnd, SW_RESTORE);
+        // When the window is restored, it will always become the foreground window.
+        // So return early here, we don't need the following code to bring it to front.
+        return;
+    }
+
+    // OK, our window is not minimized, so now we will try to bring it to front manually.
+    const HWND oldForegroundWindow = GetForegroundWindow();
+    if (!oldForegroundWindow) // It may be NULL, according to MS docs.
+        return;
+
+    // First try to send a message to the current foreground window to check whether
+    // it is currently hanging or not.
+    if (SendMessageTimeoutW(oldForegroundWindow, WM_NULL, 0, 0,
+            SMTO_BLOCK | SMTO_ABORTIFHUNG | SMTO_NOTIMEOUTIFNOTHUNG, 1000, nullptr) == 0) {
+        qCWarning(lcQpaWindow) << "The foreground window hangs, can't activate current window.";
+        return;
+    }
+
+    const DWORD windowThreadProcessId = GetWindowThreadProcessId(oldForegroundWindow, nullptr);
+    const DWORD currentThreadId = GetCurrentThreadId();
+
+    AttachThreadInput(windowThreadProcessId, currentThreadId, TRUE);
+    const auto cleanup = qScopeGuard([windowThreadProcessId, currentThreadId](){
+        AttachThreadInput(windowThreadProcessId, currentThreadId, FALSE);
+    });
+
+    BringWindowToTop(m_data.hwnd);
+
+    // Activate the window too. This will force us to the virtual desktop this
+    // window is on, if it's on another virtual desktop.
+    SetActiveWindow(m_data.hwnd);
 }
 
 bool QWindowsWindow::setKeyboardGrabEnabled(bool grab)
diff --git a/src/plugins/platforms/windows/uiautomation/qwindowsuiamainprovider.cpp b/src/plugins/platforms/windows/uiautomation/qwindowsuiamainprovider.cpp
index cd92cd18..cbe9e925 100644
--- a/src/plugins/platforms/windows/uiautomation/qwindowsuiamainprovider.cpp
+++ b/src/plugins/platforms/windows/uiautomation/qwindowsuiamainprovider.cpp
@@ -38,10 +38,13 @@ QT_BEGIN_NAMESPACE
 
 using namespace QWindowsUiAutomation;
 
+QMutex QWindowsUiaMainProvider::m_mutex;
 
 // Returns a cached instance of the provider for a specific accessible interface.
 QWindowsUiaMainProvider *QWindowsUiaMainProvider::providerForAccessible(QAccessibleInterface *accessible)
 {
+    QMutexLocker locker(&m_mutex);
+
     if (!accessible)
         return nullptr;
 
@@ -224,6 +227,8 @@ ULONG QWindowsUiaMainProvider::AddRef()
 
 ULONG STDMETHODCALLTYPE QWindowsUiaMainProvider::Release()
 {
+    QMutexLocker locker(&m_mutex);
+
     if (!--m_ref) {
         delete this;
         return 0;
diff --git a/src/plugins/platforms/windows/uiautomation/qwindowsuiamainprovider.h b/src/plugins/platforms/windows/uiautomation/qwindowsuiamainprovider.h
index 5659a28e..fb5069f6 100644
--- a/src/plugins/platforms/windows/uiautomation/qwindowsuiamainprovider.h
+++ b/src/plugins/platforms/windows/uiautomation/qwindowsuiamainprovider.h
@@ -11,6 +11,7 @@
 
 #include <QtCore/qpointer.h>
 #include <QtCore/qsharedpointer.h>
+#include <QtCore/qmutex.h>
 #include <QtCore/qt_windows.h>
 #include <QtGui/qaccessible.h>
 
@@ -62,6 +63,7 @@ public:
 private:
     QString automationIdForAccessible(const QAccessibleInterface *accessible);
     ULONG m_ref;
+    static QMutex m_mutex;
 };
 
 QT_END_NAMESPACE
diff --git a/src/plugins/platforms/windows/uiautomation/qwindowsuiaprovidercache.cpp b/src/plugins/platforms/windows/uiautomation/qwindowsuiaprovidercache.cpp
index c53b130b..ba2a88bb 100644
--- a/src/plugins/platforms/windows/uiautomation/qwindowsuiaprovidercache.cpp
+++ b/src/plugins/platforms/windows/uiautomation/qwindowsuiaprovidercache.cpp
@@ -39,7 +39,7 @@ void QWindowsUiaProviderCache::insert(QAccessible::Id id, QWindowsUiaBaseProvide
         m_providerTable[id] = provider;
         m_inverseTable[provider] = id;
         // Connects the destroyed signal to our slot, to remove deleted objects from the cache.
-        QObject::connect(provider, &QObject::destroyed, this, &QWindowsUiaProviderCache::objectDestroyed);
+        QObject::connect(provider, &QObject::destroyed, this, &QWindowsUiaProviderCache::objectDestroyed, Qt::DirectConnection);
     }
 }
 
diff --git a/src/plugins/platforms/xcb/CMakeLists.txt b/src/plugins/platforms/xcb/CMakeLists.txt
index 17e723d6..fa43e752 100644
--- a/src/plugins/platforms/xcb/CMakeLists.txt
+++ b/src/plugins/platforms/xcb/CMakeLists.txt
@@ -57,7 +57,6 @@ qt_internal_add_module(XcbQpaPrivate
         XCB::SYNC
         XCB::XCB
         XCB::XFIXES
-        # XCB::XINPUT # special case remove handled below
         XCB::XKB
         XKB::XKB
     NO_UNITY_BUILD # X11 define clashes
@@ -178,5 +177,5 @@ qt_internal_add_plugin(QXcbIntegrationPlugin
 
 add_subdirectory(gl_integrations)
 if(OFF)
-    add_subdirectory(xcb-static) # special case TODO: xcb-static sub folder
+    add_subdirectory(xcb-static)
 endif()
diff --git a/src/plugins/platforms/xcb/qxcbatom.cpp b/src/plugins/platforms/xcb/qxcbatom.cpp
index ccebd16e..a456c194 100644
--- a/src/plugins/platforms/xcb/qxcbatom.cpp
+++ b/src/plugins/platforms/xcb/qxcbatom.cpp
@@ -215,25 +215,19 @@ void QXcbAtom::initialize(xcb_connection_t *connection)
 }
 
 void QXcbAtom::initializeAllAtoms(xcb_connection_t *connection) {
-    const char *names[QXcbAtom::NAtoms];
-    const char *ptr = xcb_atomnames;
-
+    const char *name = xcb_atomnames;
+    size_t name_len;
     int i = 0;
-    while (*ptr) {
-        names[i++] = ptr;
-        while (*ptr)
-            ++ptr;
-        ++ptr;
+    xcb_intern_atom_cookie_t cookies[QXcbAtom::NAtoms];
+
+    while ((name_len = strlen(name)) != 0) {
+        cookies[i] = xcb_intern_atom(connection, false, name_len, name);
+        ++i;
+        name += name_len + 1; // jump over the \0
     }
 
     Q_ASSERT(i == QXcbAtom::NAtoms);
 
-    xcb_intern_atom_cookie_t cookies[QXcbAtom::NAtoms];
-
-    Q_ASSERT(i == QXcbAtom::NAtoms);
-    for (i = 0; i < QXcbAtom::NAtoms; ++i)
-        cookies[i] = xcb_intern_atom(connection, false, strlen(names[i]), names[i]);
-
     for (i = 0; i < QXcbAtom::NAtoms; ++i) {
         xcb_intern_atom_reply_t *reply = xcb_intern_atom_reply(connection, cookies[i], nullptr);
         if (reply) {
diff --git a/src/plugins/platforms/xcb/qxcbbackingstore.cpp b/src/plugins/platforms/xcb/qxcbbackingstore.cpp
index f3905dff..0659cf9f 100644
--- a/src/plugins/platforms/xcb/qxcbbackingstore.cpp
+++ b/src/plugins/platforms/xcb/qxcbbackingstore.cpp
@@ -877,8 +877,10 @@ QPlatformBackingStore::FlushResult QXcbBackingStore::rhiFlush(QWindow *window,
 
     m_image->flushScrolledRegion(true);
 
-    QPlatformBackingStore::rhiFlush(window, sourceDevicePixelRatio, region, offset, textures, translucentBackground);
-
+    auto result = QPlatformBackingStore::rhiFlush(window, sourceDevicePixelRatio, region, offset,
+                                                  textures, translucentBackground);
+    if (result != FlushSuccess)
+        return result;
     QXcbWindow *platformWindow = static_cast<QXcbWindow *>(window->handle());
     if (platformWindow->needsSync()) {
         platformWindow->updateSyncRequestCounter();
diff --git a/src/plugins/platforms/xcb/qxcbclipboard.cpp b/src/plugins/platforms/xcb/qxcbclipboard.cpp
index 0de0db2a..40e2f473 100644
--- a/src/plugins/platforms/xcb/qxcbclipboard.cpp
+++ b/src/plugins/platforms/xcb/qxcbclipboard.cpp
@@ -126,7 +126,7 @@ QXcbClipboardTransaction::QXcbClipboardTransaction(QXcbClipboard *clipboard, xcb
     xcb_change_window_attributes(m_clipboard->xcb_connection(), m_window,
                                  XCB_CW_EVENT_MASK, values);
 
-    m_abortTimerId = startTimer(m_clipboard->clipboardTimeout());
+    m_abortTimerId = startTimer(std::chrono::milliseconds{m_clipboard->clipboardTimeout()});
 }
 
 QXcbClipboardTransaction::~QXcbClipboardTransaction()
@@ -145,7 +145,7 @@ bool QXcbClipboardTransaction::updateIncrementalProperty(const xcb_property_noti
     // restart the timer
     if (m_abortTimerId)
         killTimer(m_abortTimerId);
-    m_abortTimerId = startTimer(m_clipboard->clipboardTimeout());
+    m_abortTimerId = startTimer(std::chrono::milliseconds{m_clipboard->clipboardTimeout()});
 
     uint bytes_left = uint(m_data.size()) - m_offset;
     if (bytes_left > 0) {
diff --git a/src/plugins/platforms/xcb/qxcbconnection.h b/src/plugins/platforms/xcb/qxcbconnection.h
index 24e68486..abc17b21 100644
--- a/src/plugins/platforms/xcb/qxcbconnection.h
+++ b/src/plugins/platforms/xcb/qxcbconnection.h
@@ -367,7 +367,7 @@ Q_DECLARE_TYPEINFO(QXcbConnection::TabletData, Q_RELOCATABLE_TYPE);
 class QXcbConnectionGrabber
 {
 public:
-    QXcbConnectionGrabber(QXcbConnection *connection);
+    Q_NODISCARD_CTOR QXcbConnectionGrabber(QXcbConnection *connection);
     ~QXcbConnectionGrabber();
     void release();
 private:
diff --git a/src/plugins/platforms/xcb/qxcbconnection_basic.cpp b/src/plugins/platforms/xcb/qxcbconnection_basic.cpp
index 5f1b964a..6416003b 100644
--- a/src/plugins/platforms/xcb/qxcbconnection_basic.cpp
+++ b/src/plugins/platforms/xcb/qxcbconnection_basic.cpp
@@ -2,6 +2,7 @@
 // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
 #include "qxcbconnection_basic.h"
 #include "qxcbbackingstore.h" // for createSystemVShmSegment()
+#include "private/qoffsetstringarray_p.h"
 
 #include <xcb/randr.h>
 #include <xcb/shm.h>
@@ -27,7 +28,7 @@ QT_BEGIN_NAMESPACE
 Q_LOGGING_CATEGORY(lcQpaXcb, "qt.qpa.xcb")
 
 #if QT_CONFIG(xcb_xlib)
-static const char * const xcbConnectionErrors[] = {
+static constexpr auto xcbConnectionErrors = qOffsetStringArray(
     "No error", /* Error 0 */
     "I/O error", /* XCB_CONN_ERROR */
     "Unsupported extension used", /* XCB_CONN_CLOSED_EXT_NOTSUPPORTED */
@@ -36,7 +37,7 @@ static const char * const xcbConnectionErrors[] = {
     "Failed to parse display string", /* XCB_CONN_CLOSED_PARSE_ERR */
     "No such screen on display", /* XCB_CONN_CLOSED_INVALID_SCREEN */
     "Error during FD passing" /* XCB_CONN_CLOSED_FDPASSING_FAILED */
-};
+);
 
 static int nullErrorHandler(Display *dpy, XErrorEvent *err)
 {
@@ -60,8 +61,7 @@ static int ioErrorHandler(Display *dpy)
         /* Print a message with a textual description of the error */
         int code = xcb_connection_has_error(conn);
         const char *str = "Unknown error";
-        int arrayLength = sizeof(xcbConnectionErrors) / sizeof(xcbConnectionErrors[0]);
-        if (code >= 0 && code < arrayLength)
+        if (code >= 0 && code < xcbConnectionErrors.count())
             str = xcbConnectionErrors[code];
 
         qWarning("The X11 connection broke: %s (code %d)", str, code);
diff --git a/src/plugins/platforms/xcb/qxcbdrag.cpp b/src/plugins/platforms/xcb/qxcbdrag.cpp
index e2092771..3ef37e85 100644
--- a/src/plugins/platforms/xcb/qxcbdrag.cpp
+++ b/src/plugins/platforms/xcb/qxcbdrag.cpp
@@ -1097,7 +1097,7 @@ void QXcbDrag::timerEvent(QTimerEvent* e)
                 continue;
             }
             QTime currentTime = QTime::currentTime();
-            int delta = t.time.msecsTo(currentTime);
+            std::chrono::milliseconds delta{t.time.msecsTo(currentTime)};
             if (delta > XdndDropTransactionTimeout) {
                 /* delete transactions which are older than XdndDropTransactionTimeout. It could mean
                  one of these:
diff --git a/src/plugins/platforms/xcb/qxcbdrag.h b/src/plugins/platforms/xcb/qxcbdrag.h
index a58b7e85..ae7cc915 100644
--- a/src/plugins/platforms/xcb/qxcbdrag.h
+++ b/src/plugins/platforms/xcb/qxcbdrag.h
@@ -14,7 +14,6 @@
 #include <qpoint.h>
 #include <qpointer.h>
 #include <qrect.h>
-#include <qsharedpointer.h>
 #include <qxcbobject.h>
 
 #include <QtCore/QDebug>
@@ -128,7 +127,7 @@ private:
     QXcbVirtualDesktop *current_virtual_desktop;
 
     // 10 minute timer used to discard old XdndDrop transactions
-    enum { XdndDropTransactionTimeout = 600000 };
+    static constexpr std::chrono::minutes XdndDropTransactionTimeout{10};
     int cleanup_timer;
 
     QList<xcb_atom_t> drag_types;
diff --git a/src/plugins/platforms/xcb/qxcbmime.cpp b/src/plugins/platforms/xcb/qxcbmime.cpp
index 9d624230..3e3223d3 100644
--- a/src/plugins/platforms/xcb/qxcbmime.cpp
+++ b/src/plugins/platforms/xcb/qxcbmime.cpp
@@ -79,8 +79,7 @@ bool QXcbMime::mimeDataForAtom(QXcbConnection *connection, xcb_atom_t a, QMimeDa
         if (atomName == "text/uri-list"_L1
             && connection->atomName(a) == "text/x-moz-url") {
             const QString mozUri = QLatin1StringView(data->split('\n').constFirst()) + u'\n';
-            *data = QByteArray(reinterpret_cast<const char *>(mozUri.data()),
-                               mozUri.size() * 2);
+            data->assign({reinterpret_cast<const char *>(mozUri.data()), mozUri.size() * 2});
         } else if (atomName == "application/x-color"_L1)
             *dataFormat = 16;
         ret = true;
diff --git a/src/plugins/platforms/xcb/qxcbwindow.cpp b/src/plugins/platforms/xcb/qxcbwindow.cpp
index 584f1e54..7e3c32d3 100644
--- a/src/plugins/platforms/xcb/qxcbwindow.cpp
+++ b/src/plugins/platforms/xcb/qxcbwindow.cpp
@@ -472,6 +472,18 @@ QXcbWindow::~QXcbWindow()
     destroy();
 }
 
+QXcbForeignWindow::QXcbForeignWindow(QWindow *window, WId nativeHandle)
+    : QXcbWindow(window)
+{
+    m_window = nativeHandle;
+
+    // Reflect the foreign window's geometry as our own
+    if (auto geometry = Q_XCB_REPLY(xcb_get_geometry, xcb_connection(), m_window)) {
+        QRect nativeGeometry(geometry->x, geometry->y, geometry->width, geometry->height);
+        QPlatformWindow::setGeometry(nativeGeometry);
+    }
+}
+
 QXcbForeignWindow::~QXcbForeignWindow()
 {
     // Clear window so that destroy() does not affect it
diff --git a/src/plugins/platforms/xcb/qxcbwindow.h b/src/plugins/platforms/xcb/qxcbwindow.h
index 54a96a7a..6a13c4b6 100644
--- a/src/plugins/platforms/xcb/qxcbwindow.h
+++ b/src/plugins/platforms/xcb/qxcbwindow.h
@@ -258,8 +258,7 @@ protected:
 class QXcbForeignWindow : public QXcbWindow
 {
 public:
-    QXcbForeignWindow(QWindow *window, WId nativeHandle)
-        : QXcbWindow(window) { m_window = nativeHandle; }
+    QXcbForeignWindow(QWindow *window, WId nativeHandle);
     ~QXcbForeignWindow();
     bool isForeignWindow() const override { return true; }
 
diff --git a/src/plugins/platformthemes/gtk3/qgtk3interface_p.h b/src/plugins/platformthemes/gtk3/qgtk3interface_p.h
index 6b9aeffc..c43932a4 100644
--- a/src/plugins/platformthemes/gtk3/qgtk3interface_p.h
+++ b/src/plugins/platformthemes/gtk3/qgtk3interface_p.h
@@ -16,7 +16,6 @@
 //
 
 #include <QtCore/QString>
-#include <QtCore/QLibrary>
 #include <QtCore/QCache>
 #include <private/qflatmap_p.h>
 #include <QtCore/QObject>
diff --git a/src/plugins/sqldrivers/.cmake.conf b/src/plugins/sqldrivers/.cmake.conf
index 20ad9f78..146dd2bd 100644
--- a/src/plugins/sqldrivers/.cmake.conf
+++ b/src/plugins/sqldrivers/.cmake.conf
@@ -1 +1 @@
-set(QT_REPO_MODULE_VERSION "6.5.3")
+set(QT_REPO_MODULE_VERSION "6.6.0")
diff --git a/src/plugins/sqldrivers/CMakeLists.txt b/src/plugins/sqldrivers/CMakeLists.txt
index 0a2a7e20..7f44072d 100644
--- a/src/plugins/sqldrivers/CMakeLists.txt
+++ b/src/plugins/sqldrivers/CMakeLists.txt
@@ -48,10 +48,6 @@ if(QT_FEATURE_sql_odbc)
     add_subdirectory(odbc)
 endif()
 
-if(QT_FEATURE_sql_tds)
-#     TODO add_subdirectory(tds)
-endif()
-
 if(QT_FEATURE_sql_oci)
     add_subdirectory(oci)
 endif()
@@ -64,14 +60,14 @@ if(QT_FEATURE_sql_sqlite)
     add_subdirectory(sqlite)
 endif()
 
-if(QT_FEATURE_sql_sqlite2)
-#     TODO add_subdirectory(sqlite2)
-endif()
-
 if(QT_FEATURE_sql_ibase)
     add_subdirectory(ibase)
 endif()
 
+if(QT_FEATURE_sql_mimer)
+    add_subdirectory(mimer)
+endif()
+
 if(NOT CMAKE_PROJECT_NAME STREQUAL "QtBase" AND NOT CMAKE_PROJECT_NAME STREQUAL "Qt")
     qt_print_feature_summary()
 endif()
diff --git a/src/plugins/sqldrivers/configure.cmake b/src/plugins/sqldrivers/configure.cmake
index 4132196e..534ac020 100644
--- a/src/plugins/sqldrivers/configure.cmake
+++ b/src/plugins/sqldrivers/configure.cmake
@@ -20,6 +20,7 @@ qt_find_package(Oracle PROVIDED_TARGETS Oracle::OCI MODULE_NAME sqldrivers QMAKE
 qt_find_package(ODBC PROVIDED_TARGETS ODBC::ODBC MODULE_NAME sqldrivers QMAKE_LIB odbc)
 qt_find_package(SQLite3 PROVIDED_TARGETS SQLite::SQLite3 MODULE_NAME sqldrivers QMAKE_LIB sqlite3)
 qt_find_package(Interbase PROVIDED_TARGETS Interbase::Interbase MODULE_NAME sqldrivers QMAKE_LIB ibase) # special case
+qt_find_package(Mimer PROVIDED_TARGETS MimerSQL::MimerSQL MODULE_NAME sqldrivers QMAKE_LIB mimer)
 if(NOT WIN32 AND QT_FEATURE_system_zlib)
     qt_add_qmake_lib_dependency(sqlite3 zlib)
 endif()
@@ -64,6 +65,11 @@ qt_feature("system-sqlite" PRIVATE
     AUTODETECT OFF
     CONDITION QT_FEATURE_sql_sqlite AND SQLite3_FOUND
 )
+qt_feature("sql-mimer" PRIVATE
+    LABEL "Mimer"
+    CONDITION Mimer_FOUND
+)
+
 qt_configure_add_summary_section(NAME "Qt Sql Drivers")
 qt_configure_add_summary_entry(ARGS "sql-db2")
 qt_configure_add_summary_entry(ARGS "sql-ibase")
@@ -73,6 +79,7 @@ qt_configure_add_summary_entry(ARGS "sql-odbc")
 qt_configure_add_summary_entry(ARGS "sql-psql")
 qt_configure_add_summary_entry(ARGS "sql-sqlite")
 qt_configure_add_summary_entry(ARGS "system-sqlite")
+qt_configure_add_summary_entry(ARGS "sql-mimer")
 qt_configure_end_summary_section() # end of "Qt Sql Drivers" section
 qt_configure_add_report_entry(
     TYPE WARNING
diff --git a/src/plugins/sqldrivers/db2/qsql_db2.cpp b/src/plugins/sqldrivers/db2/qsql_db2.cpp
index 2d929389..a18d7a84 100644
--- a/src/plugins/sqldrivers/db2/qsql_db2.cpp
+++ b/src/plugins/sqldrivers/db2/qsql_db2.cpp
@@ -14,6 +14,7 @@
 #include <QDebug>
 #include <QtSql/private/qsqldriver_p.h>
 #include <QtSql/private/qsqlresult_p.h>
+#include "private/qtools_p.h"
 
 #if defined(Q_CC_BOR)
 // DB2's sqlsystm.h (included through sqlcli1.h) defines the SQL_BIGINT_TYPE
@@ -43,10 +44,13 @@ class QDB2DriverPrivate : public QSqlDriverPrivate
     Q_DECLARE_PUBLIC(QDB2Driver)
 
 public:
-    QDB2DriverPrivate() : QSqlDriverPrivate(), hEnv(0), hDbc(0) { dbmsType = QSqlDriver::DB2; }
-    SQLHANDLE hEnv;
-    SQLHANDLE hDbc;
+    QDB2DriverPrivate() : QSqlDriverPrivate(QSqlDriver::DB2) {}
+    SQLHANDLE hEnv = 0;
+    SQLHANDLE hDbc = 0;
     QString user;
+
+    void qSplitTableQualifier(const QString &qualifier, QString &catalog,
+                              QString &schema, QString &table) const;
 };
 
 class QDB2ResultPrivate;
@@ -461,34 +465,27 @@ static QByteArray qGetBinaryData(SQLHANDLE hStmt, int column, SQLLEN& lengthIndi
     return fieldVal;
 }
 
-static void qSplitTableQualifier(const QString & qualifier, QString * catalog,
-                                  QString * schema, QString * table)
+void QDB2DriverPrivate::qSplitTableQualifier(const QString &qualifier, QString &catalog,
+                                             QString &schema, QString &table) const
 {
-    if (!catalog || !schema || !table)
-        return;
-    QStringList l = qualifier.split(u'.');
-    if (l.count() > 3)
-        return; // can't possibly be a valid table qualifier
-    int i = 0, n = l.count();
-    if (n == 1) {
-        *table = qualifier;
-    } else {
-        for (QStringList::Iterator it = l.begin(); it != l.end(); ++it) {
-            if (n == 3) {
-                if (i == 0)
-                    *catalog = *it;
-                else if (i == 1)
-                    *schema = *it;
-                else if (i == 2)
-                    *table = *it;
-            } else if (n == 2) {
-                if (i == 0)
-                    *schema = *it;
-                else if (i == 1)
-                    *table = *it;
-            }
-            i++;
-        }
+    const QList<QStringView> l = QStringView(qualifier).split(u'.');
+    switch (l.count()) {
+        case 1:
+            table = qualifier;
+            break;
+        case 2:
+            schema = l.at(0).toString();
+            table = l.at(1).toString();
+            break;
+        case 3:
+            catalog = l.at(0).toString();
+            schema = l.at(1).toString();
+            table = l.at(2).toString();
+            break;
+        default:
+            qSqlWarning(QString::fromLatin1("QODBCDriver::splitTableQualifier: Unable to split table qualifier '%1'")
+                        .arg(qualifier), this);
+            break;
     }
 }
 
@@ -875,7 +872,7 @@ bool QDB2Result::exec()
                 break; }
             case QMetaType::Int:
             case QMetaType::Double:
-            case QMetaType::ByteArray:
+            case QMetaType::QByteArray:
                 break;
             case QMetaType::QString:
                 if (bindValueType(i) & QSql::Out)
@@ -1353,7 +1350,7 @@ QSqlRecord QDB2Driver::record(const QString& tableName) const
 
     SQLHANDLE hStmt;
     QString catalog, schema, table;
-    qSplitTableQualifier(tableName, &catalog, &schema, &table);
+    d->qSplitTableQualifier(tableName, catalog, schema, table);
     if (schema.isEmpty())
         schema = d->user;
 
@@ -1509,7 +1506,7 @@ QSqlIndex QDB2Driver::primaryIndex(const QString& tablename) const
         return index;
     }
     QString catalog, schema, table;
-    qSplitTableQualifier(tablename, &catalog, &schema, &table);
+    d->qSplitTableQualifier(tablename, catalog, schema, table);
 
     if (isIdentifierEscaped(catalog, QSqlDriver::TableName))
         catalog = stripDelimiters(catalog, QSqlDriver::TableName);
@@ -1674,17 +1671,17 @@ QString QDB2Driver::formatValue(const QSqlField &field, bool trimStrings) const
                 }
         }
         case QMetaType::QByteArray: {
-            QByteArray ba = field.value().toByteArray();
-            QString res;
-            res += "BLOB(X'"_L1;
-            static const char hexchars[] = "0123456789abcdef";
-            for (int i = 0; i < ba.size(); ++i) {
-                uchar s = (uchar) ba[i];
-                res += QLatin1Char(hexchars[s >> 4]);
-                res += QLatin1Char(hexchars[s & 0x0f]);
+            const QByteArray ba = field.value().toByteArray();
+            QString r;
+            r.reserve(ba.size() * 2 + 9);
+            r += "BLOB(X'"_L1;
+            for (const char c : ba) {
+                const uchar s = uchar(c);
+                r += QLatin1Char(QtMiscUtils::toHexLower(s >> 4));
+                r += QLatin1Char(QtMiscUtils::toHexLower(s & 0x0f));
             }
-            res += "')"_L1;
-            return res;
+            r += "')"_L1;
+            return r;
         }
         default:
             return QSqlDriver::formatValue(field, trimStrings);
@@ -1702,8 +1699,8 @@ QString QDB2Driver::escapeIdentifier(const QString &identifier, IdentifierType)
     QString res = identifier;
     if (!identifier.isEmpty() && !identifier.startsWith(u'"') && !identifier.endsWith(u'"') ) {
         res.replace(u'"', "\"\""_L1);
-        res.prepend(u'"').append(u'"');
         res.replace(u'.', "\".\""_L1);
+        res = u'"' + res + u'"';
     }
     return res;
 }
diff --git a/src/plugins/sqldrivers/ibase/qsql_ibase.cpp b/src/plugins/sqldrivers/ibase/qsql_ibase.cpp
index 7d9198d4..0e5b515c 100644
--- a/src/plugins/sqldrivers/ibase/qsql_ibase.cpp
+++ b/src/plugins/sqldrivers/ibase/qsql_ibase.cpp
@@ -4,6 +4,7 @@
 #include "qsql_ibase_p.h"
 #include <QtCore/qcoreapplication.h>
 #include <QtCore/qdatetime.h>
+#include <QtCore/qtimezone.h>
 #include <QtCore/qdeadlinetimer.h>
 #include <QtCore/qdebug.h>
 #include <QtCore/qlist.h>
@@ -20,6 +21,7 @@
 #include <stdlib.h>
 #include <limits.h>
 #include <math.h>
+#include <mutex>
 
 QT_BEGIN_NAMESPACE
 
@@ -36,7 +38,15 @@ using namespace Qt::StringLiterals;
 #define blr_boolean_dtype blr_bool
 #endif
 
-enum { QIBaseChunkSize = SHRT_MAX / 2 };
+constexpr qsizetype QIBaseChunkSize = SHRT_MAX / 2;
+
+#if (FB_API_VER >= 40)
+typedef QMap<quint16, QByteArray> QFbTzIdToIanaIdMap;
+typedef QMap<QByteArray, quint16> QIanaIdToFbTzIdMap;
+Q_GLOBAL_STATIC(QFbTzIdToIanaIdMap, qFbTzIdToIanaIdMap)
+Q_GLOBAL_STATIC(QIanaIdToFbTzIdMap, qIanaIdToFbTzIdMap)
+std::once_flag initTZMappingFlag;
+#endif
 
 static bool getIBaseError(QString& msg, const ISC_STATUS* status, ISC_LONG &sqlcode)
 {
@@ -85,6 +95,9 @@ static void initDA(XSQLDA *sqlda)
         case SQL_FLOAT:
         case SQL_DOUBLE:
         case SQL_TIMESTAMP:
+#if (FB_API_VER >= 40)
+        case SQL_TIMESTAMP_TZ:
+#endif
         case SQL_TYPE_TIME:
         case SQL_TYPE_DATE:
         case SQL_TEXT:
@@ -122,7 +135,7 @@ static void delDA(XSQLDA *&sqlda)
         delete [] sqlda->sqlvar[i].sqldata;
     }
     free(sqlda);
-    sqlda = 0;
+    sqlda = nullptr;
 }
 
 static QMetaType::Type qIBaseTypeName(int iType, bool hasScale)
@@ -139,6 +152,9 @@ static QMetaType::Type qIBaseTypeName(int iType, bool hasScale)
     case blr_sql_date:
         return QMetaType::QDate;
     case blr_timestamp:
+#if (FB_API_VER >= 40)
+    case blr_timestamp_tz:
+#endif
         return QMetaType::QDateTime;
     case blr_blob:
         return QMetaType::QByteArray;
@@ -174,6 +190,9 @@ static QMetaType::Type qIBaseTypeName2(int iType, bool hasScale)
     case SQL_DOUBLE:
         return QMetaType::Double;
     case SQL_TIMESTAMP:
+#if (FB_API_VER >= 40)
+    case SQL_TIMESTAMP_TZ:
+#endif
         return QMetaType::QDateTime;
     case SQL_TYPE_TIME:
         return QMetaType::QTime;
@@ -208,12 +227,45 @@ static QDateTime fromTimeStamp(char *buffer)
 
     // have to demangle the structure ourselves because isc_decode_time
     // strips the msecs
-    t = t.addMSecs(int(((ISC_TIMESTAMP*)buffer)->timestamp_time / 10));
-    d = bd.addDays(int(((ISC_TIMESTAMP*)buffer)->timestamp_date));
-
+    auto timebuf = reinterpret_cast<ISC_TIMESTAMP*>(buffer);
+    t = t.addMSecs(static_cast<int>(timebuf->timestamp_time / 10));
+    d = bd.addDays(timebuf->timestamp_date);
     return QDateTime(d, t);
 }
 
+#if (FB_API_VER >= 40)
+QDateTime fromTimeStampTz(char *buffer)
+{
+    static const QDate bd(1858, 11, 17);
+    QTime t(0, 0);
+    QDate d;
+
+    // have to demangle the structure ourselves because isc_decode_time
+    // strips the msecs
+    auto timebuf = reinterpret_cast<ISC_TIMESTAMP_TZ*>(buffer);
+    t = t.addMSecs(static_cast<int>(timebuf->utc_timestamp.timestamp_time / 10));
+    d = bd.addDays(timebuf->utc_timestamp.timestamp_date);
+    quint16 fpTzID = timebuf->time_zone;
+
+    QByteArray timeZoneName = qFbTzIdToIanaIdMap()->value(fpTzID);
+    if (!timeZoneName.isEmpty())
+        return QDateTime(d, t, QTimeZone(timeZoneName));
+    else
+        return {};
+}
+
+ISC_TIMESTAMP_TZ toTimeStampTz(const QDateTime &dt)
+{
+    static const QTime midnight(0, 0, 0, 0);
+    static const QDate basedate(1858, 11, 17);
+    ISC_TIMESTAMP_TZ ts;
+    ts.utc_timestamp.timestamp_time = midnight.msecsTo(dt.time()) * 10;
+    ts.utc_timestamp.timestamp_date = basedate.daysTo(dt.date());
+    ts.time_zone = qIanaIdToFbTzIdMap()->value(dt.timeZone().id().simplified(), 0);
+    return ts;
+}
+#endif
+
 static ISC_TIME toTime(QTime t)
 {
     static const QTime midnight(0, 0, 0, 0);
@@ -282,6 +334,34 @@ public:
         return true;
     }
 
+#if (FB_API_VER >= 40)
+    void initTZMappingCache()
+    {
+        Q_Q(QIBaseDriver);
+        QSqlQuery qry(q->createResult());
+        qry.setForwardOnly(true);
+        qry.exec(QString("select * from RDB$TIME_ZONES"_L1));
+        if (qry.lastError().type()) {
+            q->setLastError(QSqlError(
+                                QCoreApplication::translate("QIBaseDriver",
+                                    "failed to query time zone mapping from system table"),
+                                qry.lastError().databaseText(),
+                                QSqlError::StatementError,
+                                qry.lastError().nativeErrorCode()));
+
+            return;
+        }
+
+        while (qry.next()) {
+            auto record = qry.record();
+            quint16 fbTzId = record.value(0).value<quint16>();
+            QByteArray ianaId = record.value(1).toByteArray().simplified();
+            qFbTzIdToIanaIdMap()->insert(fbTzId, ianaId);
+            qIanaIdToFbTzIdMap()->insert(ianaId, fbTzId);
+        }
+    }
+#endif
+
 public:
     isc_db_handle ibase;
     isc_tr_handle trans;
@@ -352,9 +432,9 @@ public:
 
     bool isSelect();
     QVariant fetchBlob(ISC_QUAD *bId);
-    bool writeBlob(int i, const QByteArray &ba);
+    bool writeBlob(qsizetype iPos, const QByteArray &ba);
     QVariant fetchArray(int pos, ISC_QUAD *arr);
-    bool writeArray(int i, const QList<QVariant> &list);
+    bool writeArray(qsizetype i, const QList<QVariant> &list);
 public:
     ISC_STATUS status[20];
     isc_tr_handle trans;
@@ -374,8 +454,8 @@ QIBaseResultPrivate::QIBaseResultPrivate(QIBaseResult *q, const QIBaseDriver *dr
       localTransaction(!drv_d_func()->ibase),
       stmt(0),
       ibase(drv_d_func()->ibase),
-      sqlda(0),
-      inda(0),
+      sqlda(nullptr),
+      inda(nullptr),
       queryType(-1)
 {
 }
@@ -399,20 +479,20 @@ void QIBaseResultPrivate::cleanup()
     q->cleanup();
 }
 
-bool QIBaseResultPrivate::writeBlob(int i, const QByteArray &ba)
+bool QIBaseResultPrivate::writeBlob(qsizetype iPos, const QByteArray &ba)
 {
     isc_blob_handle handle = 0;
-    ISC_QUAD *bId = (ISC_QUAD*)inda->sqlvar[i].sqldata;
+    ISC_QUAD *bId = (ISC_QUAD*)inda->sqlvar[iPos].sqldata;
     isc_create_blob2(status, &ibase, &trans, &handle, bId, 0, 0);
     if (!isError(QT_TRANSLATE_NOOP("QIBaseResult", "Unable to create BLOB"),
                  QSqlError::StatementError)) {
-        int i = 0;
+        qsizetype i = 0;
         while (i < ba.size()) {
-            isc_put_segment(status, &handle, qMin(ba.size() - i, int(QIBaseChunkSize)),
-                            const_cast<char*>(ba.data()) + i);
+            isc_put_segment(status, &handle, qMin(ba.size() - i, QIBaseChunkSize),
+                            ba.data() + i);
             if (isError(QT_TRANSLATE_NOOP("QIBaseResult", "Unable to write BLOB")))
                 return false;
-            i += qMin(ba.size() - i, int(QIBaseChunkSize));
+            i += qMin(ba.size() - i, QIBaseChunkSize);
         }
     }
     isc_close_blob(status, &handle);
@@ -432,7 +512,7 @@ QVariant QIBaseResultPrivate::fetchBlob(ISC_QUAD *bId)
     QByteArray ba;
     int chunkSize = QIBaseChunkSize;
     ba.resize(chunkSize);
-    int read = 0;
+    qsizetype read = 0;
     while (isc_get_segment(status, &handle, &len, chunkSize, ba.data() + read) == 0 || status[1] == isc_segment) {
         read += len;
         ba.resize(read + chunkSize);
@@ -454,7 +534,7 @@ QVariant QIBaseResultPrivate::fetchBlob(ISC_QUAD *bId)
 }
 
 template<typename T>
-static QList<QVariant> toList(char** buf, int count, T* = nullptr)
+static QList<QVariant> toList(char** buf, int count)
 {
     QList<QVariant> res;
     for (int i = 0; i < count; ++i) {
@@ -493,7 +573,7 @@ static char* readArrayBuffer(QList<QVariant>& list, char *buffer, short curDim,
                 }
                 break; }
             case blr_long:
-                valList = toList<int>(&buffer, numElements[dim], static_cast<int *>(0));
+                valList = toList<int>(&buffer, numElements[dim]);
                 break;
             case blr_short:
                 valList = toList<short>(&buffer, numElements[dim]);
@@ -513,8 +593,16 @@ static char* readArrayBuffer(QList<QVariant>& list, char *buffer, short curDim,
                     buffer += sizeof(ISC_TIMESTAMP);
                 }
                 break;
+#if (FB_API_VER >= 40)
+            case blr_timestamp_tz:
+                for (int i = 0; i < numElements[dim]; ++i) {
+                    valList.append(fromTimeStampTz(buffer));
+                    buffer += sizeof(ISC_TIMESTAMP_TZ);
+                }
+                break;
+#endif
             case blr_sql_time:
-                for(int i = 0; i < numElements[dim]; ++i) {
+                for (int i = 0; i < numElements[dim]; ++i) {
                     valList.append(fromTime(buffer));
                     buffer += sizeof(ISC_TIME);
                 }
@@ -593,9 +681,8 @@ QVariant QIBaseResultPrivate::fetchArray(int pos, ISC_QUAD *arr)
 template<typename T>
 static char* fillList(char *buffer, const QList<QVariant> &list, T* = nullptr)
 {
-    for (int i = 0; i < list.size(); ++i) {
-        T val;
-        val = qvariant_cast<T>(list.at(i));
+    for (const auto &elem : list) {
+        T val = qvariant_cast<T>(elem);
         memcpy(buffer, &val, sizeof(T));
         buffer += sizeof(T);
     }
@@ -605,11 +692,9 @@ static char* fillList(char *buffer, const QList<QVariant> &list, T* = nullptr)
 template<>
 char* fillList<float>(char *buffer, const QList<QVariant> &list, float*)
 {
-    for (int i = 0; i < list.size(); ++i) {
-        double val;
-        float val2 = 0;
-        val = qvariant_cast<double>(list.at(i));
-        val2 = (float)val;
+    for (const auto &elem : list) {
+        double val = qvariant_cast<double>(elem);
+        float val2 = (float)val;
         memcpy(buffer, &val2, sizeof(float));
         buffer += sizeof(float);
     }
@@ -644,7 +729,6 @@ static char* createArrayBuffer(char *buffer, const QList<QVariant> &list,
                                QMetaType::Type type, short curDim, ISC_ARRAY_DESC *arrayDesc,
                                QString& error)
 {
-    int i;
     ISC_ARRAY_BOUND *bounds = arrayDesc->array_desc_bounds;
     short dim = arrayDesc->array_desc_dimensions - 1;
 
@@ -659,14 +743,14 @@ static char* createArrayBuffer(char *buffer, const QList<QVariant> &list,
     }
 
     if (curDim != dim) {
-        for(i = 0; i < list.size(); ++i) {
+        for (const auto &elem : list) {
 
-          if (list.at(i).typeId() != QMetaType::QVariantList) { // dimensions mismatch
+          if (elem.typeId() != QMetaType::QVariantList) { // dimensions mismatch
               error = "Array dimensons mismatch. Fieldname: %1"_L1;
               return 0;
           }
 
-          buffer = createArrayBuffer(buffer, list.at(i).toList(), type, curDim + 1,
+          buffer = createArrayBuffer(buffer, elem.toList(), type, curDim + 1,
                                      arrayDesc, error);
           if (!buffer)
               return 0;
@@ -693,29 +777,40 @@ static char* createArrayBuffer(char *buffer, const QList<QVariant> &list,
             buffer = fillList<quint64>(buffer, list);
             break;
         case QMetaType::QString:
-            for (i = 0; i < list.size(); ++i)
-                buffer = qFillBufferWithString(buffer, list.at(i).toString(),
+            for (const auto &elem : list)
+                buffer = qFillBufferWithString(buffer, elem.toString(),
                                                arrayDesc->array_desc_length,
                                                arrayDesc->array_desc_dtype == blr_varying,
                                                true);
             break;
         case QMetaType::QDate:
-            for (i = 0; i < list.size(); ++i) {
-                *((ISC_DATE*)buffer) = toDate(list.at(i).toDate());
+            for (const auto &elem : list) {
+                *((ISC_DATE*)buffer) = toDate(elem.toDate());
                 buffer += sizeof(ISC_DATE);
             }
             break;
         case QMetaType::QTime:
-            for (i = 0; i < list.size(); ++i) {
-                *((ISC_TIME*)buffer) = toTime(list.at(i).toTime());
+            for (const auto &elem : list) {
+                *((ISC_TIME*)buffer) = toTime(elem.toTime());
                 buffer += sizeof(ISC_TIME);
             }
             break;
-
         case QMetaType::QDateTime:
-            for (i = 0; i < list.size(); ++i) {
-                *((ISC_TIMESTAMP*)buffer) = toTimeStamp(list.at(i).toDateTime());
-                buffer += sizeof(ISC_TIMESTAMP);
+            for (const auto &elem : list) {
+                switch (arrayDesc->array_desc_dtype) {
+                case blr_timestamp:
+                    *((ISC_TIMESTAMP*)buffer) = toTimeStamp(elem.toDateTime());
+                    buffer += sizeof(ISC_TIMESTAMP);
+                    break;
+#if (FB_API_VER >= 40)
+                case blr_timestamp_tz:
+                    *((ISC_TIMESTAMP_TZ*)buffer) = toTimeStampTz(elem.toDateTime());
+                    buffer += sizeof(ISC_TIMESTAMP_TZ);
+                    break;
+#endif
+                default:
+                    break;
+                }
             }
             break;
         case QMetaType::Bool:
@@ -728,7 +823,7 @@ static char* createArrayBuffer(char *buffer, const QList<QVariant> &list,
     return buffer;
 }
 
-bool QIBaseResultPrivate::writeArray(int column, const QList<QVariant> &list)
+bool QIBaseResultPrivate::writeArray(qsizetype column, const QList<QVariant> &list)
 {
     Q_Q(QIBaseResult);
     QString error;
@@ -745,7 +840,6 @@ bool QIBaseResultPrivate::writeArray(int column, const QList<QVariant> &list)
 
     short arraySize = 1;
     ISC_LONG bufLen;
-    QList<QVariant> subList = list;
 
     short dimensions = desc.array_desc_dimensions;
     for(int i = 0; i < dimensions; ++i) {
@@ -847,7 +941,7 @@ QIBaseResult::QIBaseResult(const QIBaseDriver *db)
 bool QIBaseResult::prepare(const QString& query)
 {
     Q_D(QIBaseResult);
-//     qDebug("prepare: %s", qPrintable(query));
+//     qDebug("prepare: %ls", qUtf16Printable(query));
     if (!driver() || !driver()->isOpen() || driver()->isOpenError())
         return false;
     d->cleanup();
@@ -920,7 +1014,6 @@ bool QIBaseResult::prepare(const QString& query)
     return true;
 }
 
-
 bool QIBaseResult::exec()
 {
     Q_D(QIBaseResult);
@@ -936,20 +1029,17 @@ bool QIBaseResult::exec()
 
     if (d->inda) {
         const QList<QVariant> &values = boundValues();
-        int i;
         if (values.count() > d->inda->sqld) {
             qWarning() << "QIBaseResult::exec: Parameter mismatch, expected"_L1 <<
                           d->inda->sqld << ", got"_L1 << values.count() <<
                           "parameters"_L1;
             return false;
         }
-        int para = 0;
-        for (i = 0; i < values.count(); ++i) {
-            para = i;
+        for (qsizetype para = 0; para < values.count(); ++para) {
             if (!d->inda->sqlvar[para].sqldata)
                 // skip unknown datatypes
                 continue;
-            const QVariant val(values[i]);
+            const QVariant &val = values[para];
             if (d->inda->sqlvar[para].sqltype & 1) {
                 if (QSqlResultPrivate::isVariantNull(val)) {
                     // set null indicator
@@ -1003,6 +1093,11 @@ bool QIBaseResult::exec()
             case SQL_TIMESTAMP:
                 *((ISC_TIMESTAMP*)d->inda->sqlvar[para].sqldata) = toTimeStamp(val.toDateTime());
                 break;
+#if (FB_API_VER >= 40)
+            case SQL_TIMESTAMP_TZ:
+               *((ISC_TIMESTAMP_TZ*)d->inda->sqlvar[para].sqldata) = toTimeStampTz(val.toDateTime());
+               break;
+#endif
             case SQL_TYPE_TIME:
                 *((ISC_TIME*)d->inda->sqlvar[para].sqldata) = toTime(val.toTime());
                 break;
@@ -1186,6 +1281,11 @@ bool QIBaseResult::gotoNext(QSqlCachedResult::ValueCache& row, int rowIdx)
         case SQL_BOOLEAN:
             row[idx] = QVariant(bool((*(bool*)buf)));
             break;
+#if (FB_API_VER >= 40)
+        case SQL_TIMESTAMP_TZ:
+            row[idx] = fromTimeStampTz(buf);
+            break;
+#endif
         default:
             // unknown type - don't even try to fetch
             row[idx] = QVariant();
@@ -1414,26 +1514,26 @@ bool QIBaseDriver::hasFeature(DriverFeature f) const
     return false;
 }
 
-bool QIBaseDriver::open(const QString & db,
-          const QString & user,
-          const QString & password,
-          const QString & host,
-          int port,
-          const QString & connOpts)
+bool QIBaseDriver::open(const QString &db,
+                        const QString &user,
+                        const QString &password,
+                        const QString &host,
+                        int port,
+                        const QString &connOpts)
 {
     Q_D(QIBaseDriver);
     if (isOpen())
         close();
 
-    const QStringList opts(connOpts.split(u';', Qt::SkipEmptyParts));
+    const auto opts(QStringView(connOpts).split(u';', Qt::SkipEmptyParts));
 
     QByteArray role;
-    for (int i = 0; i < opts.count(); ++i) {
-        QString tmp(opts.at(i).simplified());
+    for (const auto &opt : opts) {
+        const auto tmp(opt.trimmed());
         qsizetype idx;
         if ((idx = tmp.indexOf(u'=')) != -1) {
-            QString val = tmp.mid(idx + 1).simplified();
-            QString opt = tmp.left(idx).simplified();
+            const auto val = tmp.mid(idx + 1).trimmed();
+            const auto opt = tmp.left(idx).trimmed().toString();
             if (opt.toUpper() == "ISC_DPB_SQL_ROLE_NAME"_L1) {
                 role = val.toLocal8Bit();
                 role.truncate(255);
@@ -1484,6 +1584,14 @@ bool QIBaseDriver::open(const QString & db,
 
     setOpen(true);
     setOpenError(false);
+#if (FB_API_VER >= 40)
+    std::call_once(initTZMappingFlag, [d](){ d->initTZMappingCache(); });
+    if (lastError().isValid())
+    {
+        setOpen(true);
+        return false;
+    }
+#endif
     return true;
 }
 
@@ -1502,13 +1610,6 @@ void QIBaseDriver::close()
                 qFreeEventBuffer(eBuffer);
             }
             d->eventBuffers.clear();
-
-#if defined(FB_API_VER)
-            // TODO check whether this workaround for Firebird crash is still needed
-            QDeadlineTimer timer(500);
-            while (!timer.hasExpired())
-                QCoreApplication::processEvents();
-#endif
         }
 
         isc_detach_database(d->status, &d->ibase);
@@ -1593,8 +1694,8 @@ QStringList QIBaseDriver::tables(QSql::TableType type) const
     q.setForwardOnly(true);
     if (!q.exec("select rdb$relation_name from rdb$relations "_L1 + typeFilter))
         return res;
-    while(q.next())
-            res << q.value(0).toString().simplified();
+    while (q.next())
+        res << q.value(0).toString().simplified();
 
     return res;
 }
@@ -1605,13 +1706,9 @@ QSqlRecord QIBaseDriver::record(const QString& tablename) const
     if (!isOpen())
         return rec;
 
+    const QString table = stripDelimiters(tablename, QSqlDriver::TableName);
     QSqlQuery q(createResult());
     q.setForwardOnly(true);
-    QString table = tablename;
-    if (isIdentifierEscaped(table, QSqlDriver::TableName))
-        table = stripDelimiters(table, QSqlDriver::TableName);
-    else
-        table = table.toUpper();
     q.exec("SELECT a.RDB$FIELD_NAME, b.RDB$FIELD_TYPE, b.RDB$FIELD_LENGTH, "
            "b.RDB$FIELD_SCALE, b.RDB$FIELD_PRECISION, a.RDB$NULL_FLAG "
            "FROM RDB$RELATION_FIELDS a, RDB$FIELDS b "
@@ -1644,12 +1741,7 @@ QSqlIndex QIBaseDriver::primaryIndex(const QString &table) const
     if (!isOpen())
         return index;
 
-    QString tablename = table;
-    if (isIdentifierEscaped(tablename, QSqlDriver::TableName))
-        tablename = stripDelimiters(tablename, QSqlDriver::TableName);
-    else
-        tablename = tablename.toUpper();
-
+    const QString tablename = stripDelimiters(table, QSqlDriver::TableName);
     QSqlQuery q(createResult());
     q.setForwardOnly(true);
     q.exec("SELECT a.RDB$INDEX_NAME, b.RDB$FIELD_NAME, d.RDB$FIELD_TYPE, d.RDB$FIELD_SCALE "
@@ -1749,8 +1841,8 @@ bool QIBaseDriver::subscribeToNotification(const QString &name)
     }
 
     if (d->eventBuffers.contains(name)) {
-        qWarning("QIBaseDriver::subscribeToNotificationImplementation: already subscribing to '%s'.",
-            qPrintable(name));
+        qWarning("QIBaseDriver::subscribeToNotificationImplementation: already subscribing to '%ls'.",
+            qUtf16Printable(name));
         return false;
     }
 
@@ -1796,8 +1888,8 @@ bool QIBaseDriver::unsubscribeFromNotification(const QString &name)
     }
 
     if (!d->eventBuffers.contains(name)) {
-        qWarning("QIBaseDriver::QIBaseSubscriptionState not subscribed to '%s'.",
-            qPrintable(name));
+        qWarning("QIBaseDriver::QIBaseSubscriptionState not subscribed to '%ls'.",
+            qUtf16Printable(name));
         return false;
     }
 
@@ -1852,8 +1944,8 @@ void QIBaseDriver::qHandleEventNotification(void *updatedResultBuffer)
                                                                 (&qEventCallback)),
                                    eBuffer->resultBuffer);
             if (Q_UNLIKELY(status[0] == 1 && status[1])) {
-                qCritical("QIBaseDriver::qHandleEventNotification: could not resubscribe to '%s'",
-                    qPrintable(i.key()));
+                qCritical("QIBaseDriver::qHandleEventNotification: could not resubscribe to '%ls'",
+                    qUtf16Printable(i.key()));
             }
 
             return;
@@ -1866,8 +1958,8 @@ QString QIBaseDriver::escapeIdentifier(const QString &identifier, IdentifierType
     QString res = identifier;
     if (!identifier.isEmpty() && !identifier.startsWith(u'"') && !identifier.endsWith(u'"') ) {
         res.replace(u'"', "\"\""_L1);
-        res.prepend(u'"').append(u'"');
         res.replace(u'.', "\".\""_L1);
+        res = u'"' + res + u'"';
     }
     return res;
 }
diff --git a/src/plugins/sqldrivers/mimer/CMakeLists.txt b/src/plugins/sqldrivers/mimer/CMakeLists.txt
new file mode 100644
index 00000000..fd160fe4
--- /dev/null
+++ b/src/plugins/sqldrivers/mimer/CMakeLists.txt
@@ -0,0 +1,23 @@
+# Generated from mimer.pro.
+
+#####################################################################
+## MIMERSQLDriverPlugin Plugin:
+#####################################################################
+
+qt_internal_add_plugin(QMimerSQLDriverPlugin
+    OUTPUT_NAME qsqlmimer
+    PLUGIN_TYPE sqldrivers
+    SOURCES
+        main.cpp
+        qsql_mimer.cpp qsql_mimer.h
+    DEFINES
+        QT_NO_CAST_FROM_ASCII
+        QT_NO_CAST_TO_ASCII
+    LIBRARIES
+        MimerSQL::MimerSQL
+        Qt::Core
+        Qt::SqlPrivate
+)
+
+#### Keys ignored in scope 1:.:.:mimer.pro:<TRUE>:
+# OTHER_FILES = "mimer.json"
diff --git a/src/plugins/sqldrivers/mimer/README b/src/plugins/sqldrivers/mimer/README
new file mode 100644
index 00000000..02e4c3e1
--- /dev/null
+++ b/src/plugins/sqldrivers/mimer/README
@@ -0,0 +1,6 @@
+You will need the Mimer SQL development headers and libraries installed before
+compiling this plugin. qsql_mimer.h contains an include to mimerapi.h that is
+needed for the driver to compile.
+
+See the Qt SQL documentation for more information on compiling Qt SQL driver
+plugins.
diff --git a/src/plugins/sqldrivers/mimer/main.cpp b/src/plugins/sqldrivers/mimer/main.cpp
new file mode 100644
index 00000000..560b7da7
--- /dev/null
+++ b/src/plugins/sqldrivers/mimer/main.cpp
@@ -0,0 +1,33 @@
+// Copyright (C) 2022 The Qt Company Ltd.
+// Copyright (C) 2022 Mimer Information Technology
+// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
+#include "qsql_mimer.h"
+
+#include <qsqldriverplugin.h>
+#include <qstringlist.h>
+
+QT_BEGIN_NAMESPACE
+
+using namespace Qt::StringLiterals;
+
+class QMimerSQLDriverPlugin : public QSqlDriverPlugin
+{
+    Q_OBJECT
+    Q_PLUGIN_METADATA(IID "org.qt-project.Qt.QSqlDriverFactoryInterface" FILE "mimer.json")
+public:
+    QMimerSQLDriverPlugin();
+    QSqlDriver *create(const QString &) override;
+};
+
+QMimerSQLDriverPlugin::QMimerSQLDriverPlugin() : QSqlDriverPlugin() { }
+
+QSqlDriver *QMimerSQLDriverPlugin::create(const QString &name)
+{
+    if (name == "QMIMER"_L1)
+        return new QMimerSQLDriver;
+    return nullptr;
+}
+
+QT_END_NAMESPACE
+
+#include "main.moc"
diff --git a/src/plugins/sqldrivers/mimer/mimer.json b/src/plugins/sqldrivers/mimer/mimer.json
new file mode 100644
index 00000000..fba96b76
--- /dev/null
+++ b/src/plugins/sqldrivers/mimer/mimer.json
@@ -0,0 +1,5 @@
+{
+    "Keys": [
+        "QMIMER"
+    ]
+}
diff --git a/src/plugins/sqldrivers/mimer/qsql_mimer.cpp b/src/plugins/sqldrivers/mimer/qsql_mimer.cpp
new file mode 100644
index 00000000..49572c20
--- /dev/null
+++ b/src/plugins/sqldrivers/mimer/qsql_mimer.cpp
@@ -0,0 +1,1599 @@
+// Copyright (C) 2022 The Qt Company Ltd.
+// Copyright (C) 2022 Mimer Information Technology
+// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
+#include <qcoreapplication.h>
+#include <qvariant.h>
+#include <qmetatype.h>
+#include <qdatetime.h>
+#include <qsqlerror.h>
+#include <qsqlfield.h>
+#include <qsqlindex.h>
+#include <qsqlrecord.h>
+#include <qsqlquery.h>
+#include <qsocketnotifier.h>
+#include <qstringlist.h>
+#include <qlocale.h>
+#if defined(Q_OS_WIN32)
+#    include <QtCore/qt_windows.h>
+#endif
+#include <QtSql/private/qsqlresult_p.h>
+#include <QtSql/private/qsqldriver_p.h>
+#include "qsql_mimer.h"
+
+#define MIMER_DEFAULT_DATATYPE 1000
+
+Q_DECLARE_OPAQUE_POINTER(MimerSession)
+Q_DECLARE_METATYPE(MimerSession)
+
+Q_DECLARE_OPAQUE_POINTER(MimerStatement)
+Q_DECLARE_METATYPE(MimerStatement)
+
+QT_BEGIN_NAMESPACE
+
+enum class MimerColumnTypes {
+    Binary,
+    Clob,
+    Blob,
+    String,
+    Int,
+    Long,
+    Float,
+    Double,
+    Boolean,
+    Uuid,
+    Date,
+    Time,
+    Timestamp,
+    Unknown
+};
+
+using namespace Qt::StringLiterals;
+
+class QMimerSQLResultPrivate;
+
+class QMimerSQLResult final : public QSqlResult
+{
+    Q_DECLARE_PRIVATE(QMimerSQLResult)
+public:
+    QMimerSQLResult(const QMimerSQLDriver *db);
+    virtual ~QMimerSQLResult() override;
+    QVariant handle() const override;
+    static constexpr int genericError = -1;
+    static constexpr int lobChunkMaxSizeSet = 1048500;
+    static constexpr int lobChunkMaxSizeFetch = 65536;
+    static constexpr int maxStackStringSize = 200;
+    static constexpr int maxTimeStringSize = 18;
+    static constexpr int maxDateStringSize = 10;
+    static constexpr int maxTimestampStringSize = 29;
+
+private:
+    void cleanup();
+    bool fetch(int i) override;
+    bool fetchFirst() override;
+    bool fetchLast() override;
+    bool fetchNext() override;
+    QVariant data(int i) override;
+    bool isNull(int index) override;
+    bool reset(const QString &query) override;
+    int size() override;
+    int numRowsAffected() override;
+    QSqlRecord record() const override;
+    bool prepare(const QString &query) override;
+    bool execBatch(bool arrayBind = false) override;
+    bool exec() override;
+    qint64 currentRow();
+    QVariant lastInsertId() const override;
+};
+
+class QMimerSQLDriverPrivate final : public QSqlDriverPrivate
+{
+    Q_DECLARE_PUBLIC(QMimerSQLDriver)
+public:
+    QMimerSQLDriverPrivate() : QSqlDriverPrivate(QSqlDriver::MimerSQL), sessionhandle(nullptr) { }
+    MimerSession sessionhandle;
+    QString dbName;
+    QString dbUser;
+    void splitTableQualifier(const QString &qualifier, QString *schema, QString *table) const;
+};
+
+class QMimerSQLResultPrivate : public QSqlResultPrivate
+{
+    Q_DECLARE_PUBLIC(QMimerSQLResult)
+public:
+    Q_DECLARE_SQLDRIVER_PRIVATE(QMimerSQLDriver)
+    QMimerSQLResultPrivate(QMimerSQLResult *q, const QMimerSQLDriver *drv)
+        : QSqlResultPrivate(q, drv),
+          statementhandle(nullptr),
+          lobhandle(nullptr),
+          rowsAffected(0),
+          preparedQuery(false),
+          openCursor(false),
+          openStatement(false),
+          executedStatement(false),
+          callWithOut(false),
+          execBatch(false),
+          currentRow(QSql::BeforeFirstRow)
+    {
+    }
+    MimerStatement statementhandle;
+    MimerLob lobhandle;
+    int rowsAffected;
+    bool preparedQuery;
+    bool openCursor;
+    bool openStatement;
+    bool executedStatement;
+    bool callWithOut;
+    bool execBatch;
+    qint64 currentSize = -1;
+    qint64 currentRow; // Only used when forwardOnly()
+    QVector<QVariant> batch_vector;
+};
+
+static QSqlError qMakeError(const QString &err, const int errCode, QSqlError::ErrorType type,
+                            const QMimerSQLDriverPrivate *p)
+{
+    QString msg;
+    if (p) {
+        size_t str_len;
+        int e_code;
+        int rc;
+        str_len = (rc = MimerGetError(p->sessionhandle, &e_code, NULL, 0)) + 1;
+        if (!MIMER_SUCCEEDED(rc)) {
+            msg = QCoreApplication::translate("QMimerSQL", "No Mimer SQL error for code %1")
+                          .arg(errCode);
+        } else {
+            QVarLengthArray<wchar_t> tmp_buff((qsizetype)str_len);
+            if (!MIMER_SUCCEEDED(
+                        rc = MimerGetError(p->sessionhandle, &e_code, tmp_buff.data(), str_len)))
+                msg = QCoreApplication::translate("QMimerSQL", "No Mimer SQL error for code %1")
+                              .arg(errCode);
+            else
+                msg = QString::fromWCharArray(tmp_buff.data());
+        }
+    } else {
+        msg = QCoreApplication::translate("QMimerSQL", "Generic Mimer SQL error");
+    }
+
+    return QSqlError("QMIMER: "_L1 + err, msg, type, QString::number(errCode));
+}
+
+static QString msgCouldNotGet(const char *type, int column)
+{
+    //: Data type, column
+    return QCoreApplication::translate("QMimerSQLResult",
+                                       "Could not get %1, column %2").arg(QLatin1StringView(type)).arg(column);
+}
+
+static QString msgCouldNotSet(const char *type, int column)
+{
+    //: Data type, parameter
+    return QCoreApplication::translate("QMimerSQLResult",
+                                       "Could not set %1, parameter %2").arg(QLatin1StringView(type)).arg(column);
+}
+
+QMimerSQLDriver::QMimerSQLDriver(QObject *parent) : QSqlDriver(*new QMimerSQLDriverPrivate, parent)
+{
+}
+
+QMimerSQLDriver::QMimerSQLDriver(MimerSession *conn, QObject *parent)
+    : QSqlDriver(*new QMimerSQLDriverPrivate, parent)
+{
+    Q_D(QMimerSQLDriver);
+    if (conn)
+        d->sessionhandle = *conn;
+}
+
+QMimerSQLDriver::~QMimerSQLDriver()
+{
+    close();
+}
+
+QMimerSQLResult::QMimerSQLResult(const QMimerSQLDriver *db)
+    : QSqlResult(*new QMimerSQLResultPrivate(this, db))
+{
+    Q_D(QMimerSQLResult);
+    d->preparedQuery = db->hasFeature(QSqlDriver::PreparedQueries);
+}
+
+QMimerSQLResult::~QMimerSQLResult()
+{
+    cleanup();
+}
+
+static MimerColumnTypes mimerMapColumnTypes(int32_t t)
+{
+    switch (t) {
+    case MIMER_BINARY:
+    case MIMER_BINARY_VARYING:
+        return MimerColumnTypes::Binary;
+    case MIMER_BLOB:
+    case MIMER_NATIVE_BLOB:
+        return MimerColumnTypes::Blob;
+    case MIMER_CLOB:
+    case MIMER_NCLOB:
+    case MIMER_NATIVE_CLOB:
+    case MIMER_NATIVE_NCLOB:
+        return MimerColumnTypes::Clob;
+    case MIMER_DATE:
+        return MimerColumnTypes::Date;
+    case MIMER_TIME:
+        return MimerColumnTypes::Time;
+    case MIMER_TIMESTAMP:
+        return MimerColumnTypes::Timestamp;
+    case MIMER_INTERVAL_DAY:
+    case MIMER_DECIMAL:
+    case MIMER_INTERVAL_DAY_TO_HOUR:
+    case MIMER_INTERVAL_DAY_TO_MINUTE:
+    case MIMER_INTERVAL_DAY_TO_SECOND:
+    case MIMER_INTERVAL_HOUR:
+    case MIMER_INTERVAL_HOUR_TO_MINUTE:
+    case MIMER_INTERVAL_HOUR_TO_SECOND:
+    case MIMER_INTERVAL_MINUTE:
+    case MIMER_INTERVAL_MINUTE_TO_SECOND:
+    case MIMER_INTERVAL_MONTH:
+    case MIMER_INTERVAL_SECOND:
+    case MIMER_INTERVAL_YEAR:
+    case MIMER_INTERVAL_YEAR_TO_MONTH:
+    case MIMER_NCHAR:
+    case MIMER_CHARACTER:
+    case MIMER_CHARACTER_VARYING:
+    case MIMER_NCHAR_VARYING:
+    case MIMER_UTF8:
+    case MIMER_DEFAULT_DATATYPE:
+        return MimerColumnTypes::String;
+    case MIMER_BOOLEAN:
+        return MimerColumnTypes::Boolean;
+    case MIMER_T_BIGINT:
+    case MIMER_T_UNSIGNED_BIGINT:
+    case MIMER_NATIVE_BIGINT_NULLABLE:
+    case MIMER_NATIVE_BIGINT:
+        return MimerColumnTypes::Long;
+    case MIMER_T_FLOAT:
+    case MIMER_FLOAT:
+        return MimerColumnTypes::Float;
+    case MIMER_NATIVE_REAL_NULLABLE:
+    case MIMER_NATIVE_REAL:
+    case MIMER_T_REAL:
+    case MIMER_NATIVE_DOUBLE_NULLABLE:
+    case MIMER_NATIVE_DOUBLE:
+    case MIMER_T_DOUBLE:
+        return MimerColumnTypes::Double;
+    case MIMER_NATIVE_INTEGER:
+    case MIMER_NATIVE_INTEGER_NULLABLE:
+    case MIMER_INTEGER:
+    case MIMER_NATIVE_SMALLINT_NULLABLE:
+    case MIMER_NATIVE_SMALLINT:
+    case MIMER_T_INTEGER:
+    case MIMER_T_SMALLINT:
+        return MimerColumnTypes::Int;
+    case MIMER_UUID:
+        return MimerColumnTypes::Uuid;
+    default:
+        qWarning() << "QMimerSQLDriver::mimerMapColumnTypes: Unknown data type: " << t;
+    }
+    return MimerColumnTypes::Unknown;
+}
+
+static QMetaType::Type qDecodeMSQLType(int32_t t)
+{
+    switch (t) {
+    case MIMER_BINARY:
+    case MIMER_BINARY_VARYING:
+    case MIMER_BLOB:
+    case MIMER_NATIVE_BLOB:
+        return QMetaType::QByteArray;
+    case MIMER_CLOB:
+    case MIMER_NCLOB:
+    case MIMER_NATIVE_CLOB:
+    case MIMER_NATIVE_NCLOB:
+    case MIMER_INTERVAL_DAY:
+    case MIMER_DECIMAL:
+    case MIMER_INTERVAL_DAY_TO_HOUR:
+    case MIMER_INTERVAL_DAY_TO_MINUTE:
+    case MIMER_INTERVAL_DAY_TO_SECOND:
+    case MIMER_INTERVAL_HOUR:
+    case MIMER_INTERVAL_HOUR_TO_MINUTE:
+    case MIMER_INTERVAL_HOUR_TO_SECOND:
+    case MIMER_INTERVAL_MINUTE:
+    case MIMER_INTERVAL_MINUTE_TO_SECOND:
+    case MIMER_INTERVAL_MONTH:
+    case MIMER_INTERVAL_SECOND:
+    case MIMER_INTERVAL_YEAR:
+    case MIMER_INTERVAL_YEAR_TO_MONTH:
+    case MIMER_NCHAR:
+    case MIMER_CHARACTER:
+    case MIMER_CHARACTER_VARYING:
+    case MIMER_NCHAR_VARYING:
+    case MIMER_UTF8:
+    case MIMER_DEFAULT_DATATYPE:
+        return QMetaType::QString;
+    case MIMER_BOOLEAN:
+        return QMetaType::Bool;
+    case MIMER_T_BIGINT:
+    case MIMER_T_UNSIGNED_BIGINT:
+    case MIMER_NATIVE_BIGINT_NULLABLE:
+    case MIMER_NATIVE_BIGINT:
+        return QMetaType::LongLong;
+    case MIMER_T_FLOAT:
+    case MIMER_FLOAT:
+        return QMetaType::Float;
+    case MIMER_NATIVE_REAL_NULLABLE:
+    case MIMER_NATIVE_REAL:
+    case MIMER_T_REAL:
+    case MIMER_NATIVE_DOUBLE_NULLABLE:
+    case MIMER_NATIVE_DOUBLE:
+    case MIMER_T_DOUBLE:
+        return QMetaType::Double;
+    case MIMER_NATIVE_INTEGER_NULLABLE:
+    case MIMER_T_INTEGER:
+    case MIMER_INTEGER:
+        return QMetaType::Int;
+    case MIMER_NATIVE_SMALLINT_NULLABLE:
+    case MIMER_T_SMALLINT:
+        return QMetaType::Int;
+    case MIMER_DATE:
+        return QMetaType::QDate;
+    case MIMER_TIME:
+        return QMetaType::QTime;
+        break;
+    case MIMER_TIMESTAMP:
+        return QMetaType::QDateTime;
+    case MIMER_UUID:
+        return QMetaType::QUuid;
+    default:
+        qWarning() << "QMimerSQLDriver::qDecodeMSQLType: Unknown data type: " << t;
+        return QMetaType::UnknownType;
+    }
+}
+
+static int32_t qLookupMimDataType(QStringView s)
+{
+    if (s == u"BINARY")
+        return MIMER_BINARY;
+    if (s == u"BINARY VARYING")
+        return MIMER_BINARY_VARYING;
+    if (s == u"BINARY LARGE OBJECT")
+        return MIMER_BLOB;
+    if (s == u"CHARACTER LARGE OBJECT")
+        return MIMER_CLOB;
+    if (s == u"NATIONAL CHAR LARGE OBJECT")
+        return MIMER_NCLOB;
+    if (s == u"INTERVAL DAY")
+        return MIMER_INTERVAL_DAY;
+    if (s == u"DECIMAL")
+        return MIMER_DECIMAL;
+    if (s == u"INTERVAL DAY TO HOUR")
+        return MIMER_INTERVAL_DAY_TO_HOUR;
+    if (s == u"INTERVAL DAY TO MINUTE")
+        return MIMER_INTERVAL_DAY_TO_MINUTE;
+    if (s == u"INTERVAL DAY TO SECOND")
+        return MIMER_INTERVAL_DAY_TO_SECOND;
+    if (s == u"INTERVAL HOUR")
+        return MIMER_INTERVAL_HOUR;
+    if (s == u"INTERVAL HOUR TO MINUTE")
+        return MIMER_INTERVAL_HOUR_TO_MINUTE;
+    if (s == u"INTERVAL HOUR TO SECOND")
+        return MIMER_INTERVAL_HOUR_TO_SECOND;
+    if (s == u"INTERVAL MINUTE")
+        return MIMER_INTERVAL_MINUTE;
+    if (s == u"INTERVAL MINUTE TO SECOND")
+        return MIMER_INTERVAL_MINUTE_TO_SECOND;
+    if (s == u"INTERVAL MONTH")
+        return MIMER_INTERVAL_MONTH;
+    if (s == u"INTERVAL SECOND")
+        return MIMER_INTERVAL_SECOND;
+    if (s == u"INTERVAL YEAR")
+        return MIMER_INTERVAL_YEAR;
+    if (s == u"INTERVAL YEAR TO MONTH")
+        return MIMER_INTERVAL_YEAR_TO_MONTH;
+    if (s == u"NATIONAL CHARACTER")
+        return MIMER_NCHAR;
+    if (s == u"CHARACTER")
+        return MIMER_CHARACTER;
+    if (s == u"CHARACTER VARYING")
+        return MIMER_CHARACTER_VARYING;
+    if (s == u"NATIONAL CHARACTER VARYING")
+        return MIMER_NCHAR_VARYING;
+    if (s == u"UTF-8")
+        return MIMER_UTF8;
+    if (s == u"BOOLEAN")
+        return MIMER_BOOLEAN;
+    if (s == u"BIGINT")
+        return MIMER_T_BIGINT;
+    if (s == u"REAL")
+        return MIMER_T_REAL;
+    if (s == u"FLOAT")
+        return MIMER_T_FLOAT;
+    if (s == u"DOUBLE PRECISION")
+        return MIMER_T_DOUBLE;
+    if (s == u"INTEGER")
+        return MIMER_INTEGER;
+    if (s == u"SMALLINT")
+        return MIMER_T_SMALLINT;
+    if (s == u"DATE")
+        return MIMER_DATE;
+    if (s == u"TIME")
+        return MIMER_TIME;
+    if (s == u"TIMESTAMP")
+        return MIMER_TIMESTAMP;
+    if (s == u"BUILTIN.UUID")
+        return MIMER_UUID;
+    if (s == u"USER-DEFINED")
+        return MIMER_DEFAULT_DATATYPE;
+    qWarning() << "QMimerSQLDriver::qLookupMimDataType: Unhandled data type: " << s;
+    return MIMER_DEFAULT_DATATYPE;
+}
+
+QVariant QMimerSQLResult::handle() const
+{
+    Q_D(const QMimerSQLResult);
+    return QVariant::fromValue(d->statementhandle);
+}
+
+void QMimerSQLResult::cleanup()
+{
+    Q_D(QMimerSQLResult);
+    if (!driver() || !driver()->isOpen()) {
+        d->openCursor = false;
+        d->openStatement = false;
+        return;
+    }
+    if (d->openCursor) {
+        const int32_t err = MimerCloseCursor(d->statementhandle);
+        if (!MIMER_SUCCEEDED(err))
+            setLastError(qMakeError(
+                    QCoreApplication::translate("QMimerSQLResult", "Could not close cursor"), err,
+                    QSqlError::StatementError, d->drv_d_func()));
+        d->openCursor = false;
+    }
+    if (d->openStatement) {
+        const int32_t err = MimerEndStatement(&d->statementhandle);
+        if (!MIMER_SUCCEEDED(err))
+            setLastError(qMakeError(
+                    QCoreApplication::translate("QMimerSQLResult", "Could not close statement"),
+                    err, QSqlError::StatementError, d->drv_d_func()));
+        d->openStatement = false;
+    }
+    d->currentSize = -1;
+}
+
+qint64 QMimerSQLResult::currentRow()
+{
+    Q_D(const QMimerSQLResult);
+    return d->currentRow;
+}
+
+bool QMimerSQLResult::fetch(int i)
+{
+    Q_D(const QMimerSQLResult);
+    int32_t err = 0;
+    if (!isActive() || !isSelect())
+        return false;
+    if (i == at())
+        return true;
+    if (i < 0)
+        return false;
+
+    if (isForwardOnly() && i < at())
+        return false;
+
+    if (isForwardOnly()) {
+        bool rc;
+        do {
+            rc = fetchNext();
+        } while (rc && currentRow() < i);
+        return rc;
+    } else {
+        err = MimerFetchScroll(d->statementhandle, MIMER_ABSOLUTE, i + 1);
+        if (err == MIMER_NO_DATA)
+            return false;
+    }
+    if (!MIMER_SUCCEEDED(err)) {
+        setLastError(
+                qMakeError(QCoreApplication::translate("QMimerSQLResult", "Fetch did not succeed"),
+                           err, QSqlError::StatementError, d->drv_d_func()));
+        return false;
+    }
+    setAt(MimerCurrentRow(d->statementhandle) - 1);
+    return true;
+}
+
+bool QMimerSQLResult::fetchFirst()
+{
+    Q_D(const QMimerSQLResult);
+    int32_t err = 0;
+    if (!isActive() || !isSelect())
+        return false;
+    if (isForwardOnly()) {
+        if (currentRow() < 0)
+            return fetchNext();
+        else if (currentRow() == 0)
+            setAt(0);
+        else
+            return false;
+    } else {
+        err = MimerFetchScroll(d->statementhandle, MIMER_FIRST, 0);
+        if (MIMER_SUCCEEDED(err) && err != MIMER_NO_DATA)
+            setAt(0);
+    }
+    if (!MIMER_SUCCEEDED(err)) {
+        setLastError(qMakeError(
+                QCoreApplication::translate("QMimerSQLResult", "Fetch first did not succeed"), err,
+                QSqlError::StatementError, d->drv_d_func()));
+        return false;
+    }
+    if (err == MIMER_NO_DATA)
+        return false;
+    return true;
+}
+
+bool QMimerSQLResult::fetchLast()
+{
+    Q_D(const QMimerSQLResult);
+    int32_t err = 0;
+    int row = 0;
+    if (!isActive() || !isSelect())
+        return false;
+    if (isForwardOnly()) {
+        bool rc;
+        do {
+            rc = fetchNext();
+        } while (rc);
+
+        return currentRow() >= 0;
+    } else {
+        err = MimerFetchScroll(d->statementhandle, static_cast<std::int32_t>(MIMER_LAST), 0);
+        if (err == MIMER_NO_DATA)
+            return false;
+        if (MIMER_SUCCEEDED(err)) {
+            row = MimerCurrentRow(d->statementhandle) - 1;
+        } else {
+            setLastError(qMakeError(
+                    QCoreApplication::translate("QMimerSQLResult:", "Fetch last did not succeed"),
+                    err, QSqlError::StatementError, d->drv_d_func()));
+            return false;
+        }
+    }
+
+    if (row < 0) {
+        setAt(QSql::BeforeFirstRow);
+        return false;
+    } else {
+        setAt(row);
+        return true;
+    }
+}
+
+bool QMimerSQLResult::fetchNext()
+{
+    Q_D(QMimerSQLResult);
+    int32_t err = 0;
+    if (!isActive() || !isSelect())
+        return false;
+    if (isForwardOnly())
+        err = MimerFetch(d->statementhandle);
+    else
+        err = MimerFetchScroll(d->statementhandle, MIMER_NEXT, 0);
+    if (!MIMER_SUCCEEDED(err)) {
+        setLastError(qMakeError(
+                QCoreApplication::translate("QMimerSQLResult", "Could not fetch next row"), err,
+                QSqlError::StatementError, d->drv_d_func()));
+        if (isForwardOnly())
+            d->currentRow = QSql::BeforeFirstRow;
+        return false;
+    }
+    if (err == MIMER_NO_DATA)
+        return false;
+    if (isForwardOnly())
+        setAt(++d->currentRow);
+    else
+        setAt(MimerCurrentRow(d->statementhandle) - 1);
+    return true;
+}
+
+QVariant QMimerSQLResult::data(int i)
+{
+    Q_D(QMimerSQLResult);
+    int32_t err;
+    int32_t mType;
+    if (d->callWithOut) {
+        if (i >= MimerParameterCount(d->statementhandle)) {
+            setLastError(qMakeError(
+                    QCoreApplication::translate("QMimerSQLResult:", "Column %1 out of range")
+                            .arg(i),
+                    genericError, QSqlError::StatementError, nullptr));
+            return QVariant();
+        }
+        mType = MimerParameterType(d->statementhandle, static_cast<std::int16_t>(i) + 1);
+    } else {
+        if (i >= MimerColumnCount(d->statementhandle)) {
+            setLastError(qMakeError(
+                    QCoreApplication::translate("QMimerSQLResult:", "Column %1 out of range")
+                            .arg(i),
+                    genericError, QSqlError::StatementError, nullptr));
+            return QVariant();
+        }
+        mType = MimerColumnType(d->statementhandle, static_cast<std::int16_t>(i) + 1);
+    }
+    const QMetaType::Type type = qDecodeMSQLType(mType);
+    const MimerColumnTypes mimDataType = mimerMapColumnTypes(mType);
+    err = MimerIsNull(d->statementhandle, static_cast<std::int16_t>(i) + 1);
+    if (err > 0) {
+        return QVariant(QMetaType(type), nullptr);
+    } else {
+        switch (mimDataType) {
+        case MimerColumnTypes::Date: {
+            wchar_t dateString_w[maxDateStringSize + 1];
+            err = MimerGetString(d->statementhandle, static_cast<std::int16_t>(i) + 1, dateString_w,
+                                 sizeof(dateString_w) / sizeof(dateString_w[0]));
+            if (!MIMER_SUCCEEDED(err)) {
+                setLastError(qMakeError(msgCouldNotGet("date", i),
+                                        err, QSqlError::StatementError, d->drv_d_func()));
+                return QVariant(QMetaType(type), nullptr);
+            }
+            return QDate::fromString(QString::fromWCharArray(dateString_w), "yyyy-MM-dd"_L1);
+        }
+        case MimerColumnTypes::Time: {
+            wchar_t timeString_w[maxTimeStringSize + 1];
+            err = MimerGetString(d->statementhandle, static_cast<std::int16_t>(i) + 1, timeString_w,
+                                 sizeof(timeString_w) / sizeof(timeString_w[0]));
+            if (!MIMER_SUCCEEDED(err)) {
+                setLastError(qMakeError(msgCouldNotGet("time", i),
+                                        err, QSqlError::StatementError, d->drv_d_func()));
+                return QVariant(QMetaType(type), nullptr);
+            }
+            QString timeString = QString::fromWCharArray(timeString_w);
+            QString timeFormatString = "HH:mm:ss"_L1;
+            if (timeString.size() > 8) {
+                timeFormatString.append(".zzz"_L1);
+                timeString = timeString.left(12);
+            }
+            return QTime::fromString(timeString, timeFormatString);
+        }
+        case MimerColumnTypes::Timestamp: {
+            wchar_t dateTimeString_w[maxTimestampStringSize + 1];
+            err = MimerGetString(d->statementhandle, static_cast<std::int16_t>(i) + 1,
+                                 dateTimeString_w,
+                                 sizeof(dateTimeString_w) / sizeof(dateTimeString_w[0]));
+            if (!MIMER_SUCCEEDED(err)) {
+                setLastError(
+                        qMakeError(msgCouldNotGet("date time", i),
+                                   err, QSqlError::StatementError, d->drv_d_func()));
+                return QVariant(QMetaType(type), nullptr);
+            }
+            QString dateTimeString = QString::fromWCharArray(dateTimeString_w);
+            QString dateTimeFormatString = "yyyy-MM-dd HH:mm:ss"_L1;
+            if (dateTimeString.size() > 19) {
+                dateTimeFormatString.append(".zzz"_L1);
+                dateTimeString = dateTimeString.left(23);
+            }
+            return QDateTime::fromString(dateTimeString, dateTimeFormatString);
+        }
+        case MimerColumnTypes::Int: {
+            int resInt;
+            err = MimerGetInt32(d->statementhandle, static_cast<std::int16_t>(i) + 1, &resInt);
+            if (!MIMER_SUCCEEDED(err)) {
+                setLastError(qMakeError(msgCouldNotGet("int32", i),
+                                        err, QSqlError::StatementError, d->drv_d_func()));
+                return QVariant(QMetaType(type), nullptr);
+            }
+            return resInt;
+        }
+        case MimerColumnTypes::Long: {
+            int64_t resLongLong;
+            err = MimerGetInt64(d->statementhandle, static_cast<std::int16_t>(i) + 1, &resLongLong);
+            if (!MIMER_SUCCEEDED(err)) {
+                setLastError(qMakeError(msgCouldNotGet("int64", i),
+                                        err, QSqlError::StatementError, d->drv_d_func()));
+                return QVariant(QMetaType(type), nullptr);
+            }
+            return QString::number(resLongLong).toLongLong();
+        }
+        case MimerColumnTypes::Boolean: {
+            err = MimerGetBoolean(d->statementhandle, static_cast<std::int16_t>(i) + 1);
+            if (!MIMER_SUCCEEDED(err)) {
+                setLastError(
+                        qMakeError(msgCouldNotGet("boolean", i),
+                                   err, QSqlError::StatementError, d->drv_d_func()));
+                return QVariant(QMetaType(type), nullptr);
+            }
+            return err == 1;
+        }
+        case MimerColumnTypes::Float: {
+            float resFloat;
+            err = MimerGetFloat(d->statementhandle, static_cast<std::int16_t>(i) + 1, &resFloat);
+            if (!MIMER_SUCCEEDED(err)) {
+                setLastError(qMakeError(msgCouldNotGet("float", i),
+                                        err, QSqlError::StatementError, d->drv_d_func()));
+                return QVariant(QMetaType(type), nullptr);
+            }
+            return resFloat;
+        }
+        case MimerColumnTypes::Double: {
+            double resDouble;
+            err = MimerGetDouble(d->statementhandle, static_cast<std::int16_t>(i) + 1, &resDouble);
+            if (!MIMER_SUCCEEDED(err)) {
+                setLastError(
+                        qMakeError(msgCouldNotGet("double", i),
+                                   err, QSqlError::StatementError, d->drv_d_func()));
+                return QVariant(QMetaType(type), nullptr);
+            }
+            switch (numericalPrecisionPolicy()) {
+            case QSql::LowPrecisionInt32:
+                return static_cast<std::int32_t>(resDouble);
+            case QSql::LowPrecisionInt64:
+                return static_cast<qint64>(resDouble);
+            case QSql::LowPrecisionDouble:
+                return resDouble;
+            case QSql::HighPrecision:
+                return QString::number(resDouble, 'g', 17);
+            }
+            return QVariant(QMetaType(type), nullptr);
+        }
+        case MimerColumnTypes::Binary: {
+            QByteArray byteArray;
+            // Get size
+            err = MimerGetBinary(d->statementhandle, static_cast<std::int16_t>(i) + 1, NULL, 0);
+            if (MIMER_SUCCEEDED(err)) {
+                byteArray.resize(err);
+                err = MimerGetBinary(d->statementhandle, static_cast<std::int16_t>(i) + 1,
+                                     byteArray.data(), err);
+            }
+            if (!MIMER_SUCCEEDED(err)) {
+                setLastError(
+                        qMakeError(msgCouldNotGet("binary", i),
+                                   err, QSqlError::StatementError, d->drv_d_func()));
+                return QVariant(QMetaType(type), nullptr);
+            }
+            return byteArray;
+        }
+        case MimerColumnTypes::Blob: {
+            QByteArray byteArray;
+            size_t size;
+            err = MimerGetLob(d->statementhandle, static_cast<std::int16_t>(i) + 1, &size,
+                              &d->lobhandle);
+            if (MIMER_SUCCEEDED(err)) {
+                constexpr size_t maxSize = lobChunkMaxSizeFetch;
+                QVarLengthArray<char> blobchar(lobChunkMaxSizeFetch);
+                byteArray.reserve(size);
+                size_t left_to_return = size;
+                while (left_to_return > 0) {
+                    const size_t bytesToReceive =
+                            left_to_return <= maxSize ? left_to_return : maxSize;
+                    err = MimerGetBlobData(&d->lobhandle, blobchar.data(), bytesToReceive);
+                    byteArray.append(QByteArray::fromRawData(blobchar.data(), bytesToReceive));
+                    left_to_return -= bytesToReceive;
+                    if (!MIMER_SUCCEEDED(err)) {
+                        setLastError(qMakeError(msgCouldNotGet("BLOB", i),
+                                err, QSqlError::StatementError, d->drv_d_func()));
+                        return QVariant(QMetaType(type), nullptr);
+                    }
+                }
+            } else {
+                setLastError(qMakeError(msgCouldNotGet("BLOB", i),
+                                        err, QSqlError::StatementError, d->drv_d_func()));
+                return QVariant(QMetaType(type), nullptr);
+            }
+            return byteArray;
+        }
+        case MimerColumnTypes::String: {
+            wchar_t resString_w[maxStackStringSize + 1];
+            // Get size
+            err = MimerGetString(d->statementhandle, static_cast<std::int16_t>(i) + 1, resString_w,
+                                 0);
+            if (MIMER_SUCCEEDED(err)) {
+                int size = err;
+                if (err <= maxStackStringSize) { // For smaller strings, use a small buffer for
+                                                 // efficiency
+                    err = MimerGetString(d->statementhandle, static_cast<std::int16_t>(i) + 1,
+                                         resString_w, maxStackStringSize + 1);
+                    if (MIMER_SUCCEEDED(err))
+                        return QString::fromWCharArray(resString_w);
+                } else { // For larger strings, dynamically allocate memory
+                    QVarLengthArray<wchar_t> largeResString_w(size + 1);
+                    err = MimerGetString(d->statementhandle, static_cast<std::int16_t>(i) + 1,
+                                         largeResString_w.data(), size + 1);
+                    if (MIMER_SUCCEEDED(err))
+                        return QString::fromWCharArray(largeResString_w.data());
+                }
+            }
+            setLastError(qMakeError(msgCouldNotGet("string", i),
+                                    err, QSqlError::StatementError, d->drv_d_func()));
+            return QVariant(QMetaType(type), nullptr);
+        }
+        case MimerColumnTypes::Clob: {
+            size_t size;
+            err = MimerGetLob(d->statementhandle, static_cast<std::int16_t>(i) + 1, &size,
+                              &d->lobhandle);
+            if (MIMER_SUCCEEDED(err)) {
+                constexpr size_t maxSize = lobChunkMaxSizeFetch;
+                QVarLengthArray<wchar_t> clobstring_w(lobChunkMaxSizeFetch + 1);
+
+                size_t left_to_return = size;
+                QString returnString;
+                while (left_to_return > 0) {
+                    const size_t bytesToReceive =
+                            left_to_return <= maxSize ? left_to_return : maxSize;
+                    err = MimerGetNclobData(&d->lobhandle, clobstring_w.data(), bytesToReceive + 1);
+                    returnString.append(QString::fromWCharArray(clobstring_w.data()));
+                    left_to_return -= bytesToReceive;
+                    if (!MIMER_SUCCEEDED(err)) {
+                        setLastError(qMakeError(msgCouldNotGet("CLOB", i),
+                                err, QSqlError::StatementError, d->drv_d_func()));
+                        return QVariant(QMetaType(type), nullptr);
+                    }
+                }
+                return returnString;
+            }
+            setLastError(qMakeError(msgCouldNotGet("CLOB", i),
+                    err, QSqlError::StatementError, d->drv_d_func()));
+            return QVariant(QMetaType(type), nullptr);
+        }
+        case MimerColumnTypes::Uuid: {
+            unsigned char uuidChar[16];
+            err = MimerGetUUID(d->statementhandle, static_cast<std::int16_t>(i) + 1, uuidChar);
+            if (!MIMER_SUCCEEDED(err)) {
+                setLastError(qMakeError(msgCouldNotGet("UUID", i),
+                                        err, QSqlError::StatementError, d->drv_d_func()));
+                return QVariant(QMetaType(type), nullptr);
+            }
+            const QByteArray uuidByteArray = QByteArray(reinterpret_cast<char *>(uuidChar), 16);
+            return QUuid::fromRfc4122(uuidByteArray);
+        }
+        case MimerColumnTypes::Unknown:
+        default:
+            setLastError(qMakeError(
+                    QCoreApplication::translate("QMimerSQLResult", "Unknown data type %1").arg(i),
+                    genericError, QSqlError::StatementError, nullptr));
+        }
+        return QVariant(QMetaType(type), nullptr);
+    }
+}
+
+bool QMimerSQLResult::isNull(int index)
+{
+    Q_D(const QMimerSQLResult);
+    const int32_t rc = MimerIsNull(d->statementhandle, static_cast<std::int16_t>(index) + 1);
+    if (!MIMER_SUCCEEDED(rc)) {
+        setLastError(qMakeError(
+                QCoreApplication::translate("QMimerSQLResult", "Could not check null, column %1")
+                        .arg(index),
+                rc, QSqlError::StatementError, d->drv_d_func()));
+        return false;
+    }
+    return rc != 0;
+}
+
+bool QMimerSQLResult::reset(const QString &query)
+{
+    if (!prepare(query))
+        return false;
+    return exec();
+}
+
+int QMimerSQLResult::size()
+{
+    Q_D(QMimerSQLResult);
+    if (!isActive() || !isSelect() || isForwardOnly())
+        return -1;
+
+    if (d->currentSize != -1)
+        return d->currentSize;
+
+    const int currentRow = MimerCurrentRow(d->statementhandle);
+    MimerFetchScroll(d->statementhandle, static_cast<std::int32_t>(MIMER_LAST), 0);
+    int size = MimerCurrentRow(d->statementhandle);
+    if (!MIMER_SUCCEEDED(size))
+        size = -1;
+    MimerFetchScroll(d->statementhandle, MIMER_ABSOLUTE, currentRow);
+    d->currentSize = size;
+    return size;
+}
+
+int QMimerSQLResult::numRowsAffected()
+{
+    Q_D(const QMimerSQLResult);
+    return d->rowsAffected;
+}
+
+QSqlRecord QMimerSQLResult::record() const
+{
+    Q_D(const QMimerSQLResult);
+    QSqlRecord rec;
+    if (!isActive() || !isSelect() || !driver())
+        return rec;
+    QSqlField field;
+    const int colSize = MimerColumnCount(d->statementhandle);
+    for (int i = 0; i < colSize; i++) {
+        wchar_t colName_w[100];
+        MimerColumnName(d->statementhandle, static_cast<std::int16_t>(i) + 1, colName_w,
+                        sizeof(colName_w) / sizeof(colName_w[0]));
+        field.setName(QString::fromWCharArray(colName_w));
+        const int32_t mType = MimerColumnType(d->statementhandle, static_cast<std::int16_t>(i) + 1);
+        const QMetaType::Type type = qDecodeMSQLType(mType);
+        field.setSqlType(mType);
+        field.setMetaType(QMetaType(type));
+        field.setValue(QVariant(field.metaType()));
+        // field.setPrecision(); Should be implemented once the Mimer API can give this
+        // information.
+        // field.setLength(); Should be implemented once the Mimer API can give
+        // this information.
+        rec.insert(i, field);
+    }
+    return rec;
+}
+
+bool QMimerSQLResult::prepare(const QString &query)
+{
+    Q_D(QMimerSQLResult);
+    int32_t err;
+    if (!driver())
+        return false;
+    if (!d->preparedQuery)
+        return QSqlResult::prepare(query);
+    if (query.isEmpty())
+        return false;
+    cleanup();
+    const int option = isForwardOnly() ? MIMER_FORWARD_ONLY : MIMER_SCROLLABLE;
+    err = MimerBeginStatement8(d->drv_d_func()->sessionhandle, query.toUtf8().constData(), option,
+                               &d->statementhandle);
+    if (err == MIMER_STATEMENT_CANNOT_BE_PREPARED) {
+        err = MimerExecuteStatement8(d->drv_d_func()->sessionhandle, query.toUtf8().constData());
+        if (MIMER_SUCCEEDED(err)) {
+            d->executedStatement = true;
+            d->openCursor = false;
+            d->openStatement = false;
+            return true;
+        }
+    }
+    if (!MIMER_SUCCEEDED(err)) {
+        setLastError(qMakeError(QCoreApplication::translate("QMimerSQLResult",
+                                                            "Could not prepare/execute statement"),
+                                err, QSqlError::StatementError, d->drv_d_func()));
+        return false;
+    }
+    d->openStatement = true;
+    return true;
+}
+
+bool QMimerSQLResult::exec()
+{
+    Q_D(QMimerSQLResult);
+    int32_t err;
+    if (!driver())
+        return false;
+    if (!d->preparedQuery)
+        return QSqlResult::exec();
+    if (d->executedStatement) {
+        d->executedStatement = false;
+        return true;
+    }
+    if (d->openCursor) {
+        setAt(QSql::BeforeFirstRow);
+        err = MimerCloseCursor(d->statementhandle);
+        d->openCursor = false;
+        d->currentSize = -1;
+    }
+    QVector<QVariant> &values = boundValues();
+    if (d->execBatch)
+        values = d->batch_vector;
+    int mimParamCount = MimerParameterCount(d->statementhandle);
+    if (!MIMER_SUCCEEDED(mimParamCount))
+        mimParamCount = 0;
+    if (mimParamCount != values.size()) {
+        setLastError(qMakeError(
+                QCoreApplication::translate("QMimerSQLResult", "Wrong number of parameters"),
+                genericError, QSqlError::StatementError, nullptr));
+        return false;
+    }
+    for (int i = 0; i < mimParamCount; i++) {
+        if (bindValueType(i) == QSql::Out) {
+            d->callWithOut = true;
+            continue;
+        }
+        const QVariant &val = values.at(i);
+        if (QSqlResultPrivate::isVariantNull(val) || val.isNull() || val.toString().isNull()) {
+            err = MimerSetNull(d->statementhandle, i + 1);
+            if (!MIMER_SUCCEEDED(err)) {
+                setLastError(
+                        qMakeError(msgCouldNotSet("null", i),
+                                   err, QSqlError::StatementError, d->drv_d_func()));
+                return false;
+            }
+            continue;
+        }
+
+        const int mimParamType = MimerParameterType(d->statementhandle, i + 1);
+        const MimerColumnTypes mimDataType = mimerMapColumnTypes(mimParamType);
+        switch (mimDataType) {
+        case MimerColumnTypes::Int: {
+            bool convertOk;
+            err = MimerSetInt32(d->statementhandle, i + 1, val.toInt(&convertOk));
+            if (!convertOk || !MIMER_SUCCEEDED(err)) {
+                setLastError(
+                        qMakeError(msgCouldNotSet("int32", i),
+                                   convertOk ? err : genericError, QSqlError::StatementError,
+                                   convertOk ? d->drv_d_func() : nullptr));
+                return false;
+            }
+            break;
+        }
+        case MimerColumnTypes::Long: {
+            bool convertOk;
+            err = MimerSetInt64(d->statementhandle, i + 1, val.toLongLong(&convertOk));
+            if (!convertOk || !MIMER_SUCCEEDED(err)) {
+                setLastError(
+                        qMakeError(msgCouldNotSet("int64", i),
+                                   convertOk ? err : genericError, QSqlError::StatementError,
+                                   convertOk ? d->drv_d_func() : nullptr));
+                return false;
+            }
+            break;
+        }
+        case MimerColumnTypes::Float: {
+            bool convertOk;
+            err = MimerSetFloat(d->statementhandle, i + 1, val.toFloat(&convertOk));
+            if (!convertOk || !MIMER_SUCCEEDED(err)) {
+                setLastError(
+                        qMakeError(msgCouldNotSet("float", i),
+                                   convertOk ? err : genericError, QSqlError::StatementError,
+                                   convertOk ? d->drv_d_func() : nullptr));
+                return false;
+            }
+            break;
+        }
+        case MimerColumnTypes::Double: {
+            bool convertOk;
+            err = MimerSetDouble(d->statementhandle, i + 1, val.toDouble(&convertOk));
+            if (!convertOk || !MIMER_SUCCEEDED(err)) {
+                setLastError(
+                        qMakeError(msgCouldNotSet("double", i),
+                                   convertOk ? err : genericError, QSqlError::StatementError,
+                                   convertOk ? d->drv_d_func() : nullptr));
+                return false;
+            }
+            break;
+        }
+        case MimerColumnTypes::Binary: {
+            const QByteArray binArr = val.toByteArray();
+            size_t size = static_cast<std::size_t>(binArr.size());
+            err = MimerSetBinary(d->statementhandle, i + 1, binArr.data(), size);
+            if (!MIMER_SUCCEEDED(err)) {
+                setLastError(
+                        qMakeError(msgCouldNotSet("binary", i),
+                                   err, QSqlError::StatementError, d->drv_d_func()));
+                return false;
+            }
+            break;
+        }
+        case MimerColumnTypes::Boolean: {
+            err = MimerSetBoolean(d->statementhandle, i + 1, val.toBool() == true ? 1 : 0);
+            if (!MIMER_SUCCEEDED(err)) {
+                setLastError(
+                        qMakeError(msgCouldNotSet("boolean", i),
+                                   err, QSqlError::StatementError, d->drv_d_func()));
+                return false;
+            }
+            break;
+        }
+        case MimerColumnTypes::Uuid: {
+            const QByteArray uuidArray =
+                    QByteArray::fromHex(val.toUuid().toString(QUuid::WithoutBraces).toLatin1());
+            const unsigned char *uuid =
+                    reinterpret_cast<const unsigned char *>(uuidArray.constData());
+            err = MimerSetUUID(d->statementhandle, i + 1, uuid);
+            if (!MIMER_SUCCEEDED(err)) {
+                setLastError(
+                        qMakeError(msgCouldNotSet("UUID", i),
+                                   err, QSqlError::StatementError, d->drv_d_func()));
+                return false;
+            }
+            break;
+        }
+        case MimerColumnTypes::String: {
+            QByteArray string_b = val.toString().trimmed().toUtf8();
+            const char *string_u = string_b.constData();
+            err = MimerSetString8(d->statementhandle, i + 1, string_u);
+            if (!MIMER_SUCCEEDED(err)) {
+                setLastError(
+                        qMakeError(msgCouldNotSet("string", i),
+                                   err, QSqlError::StatementError, d->drv_d_func()));
+                return false;
+            }
+            break;
+        }
+        case MimerColumnTypes::Date: {
+            err = MimerSetString8(d->statementhandle, i + 1, val.toString().toUtf8().constData());
+            if (!MIMER_SUCCEEDED(err)) {
+                setLastError(
+                        qMakeError(msgCouldNotSet("date", i),
+                                   err, QSqlError::StatementError, d->drv_d_func()));
+                return false;
+            }
+            break;
+        }
+        case MimerColumnTypes::Time: {
+            QString timeFormatString = "hh:mm:ss"_L1;
+            const QTime timeVal = val.toTime();
+            if (timeVal.msec() > 0)
+                timeFormatString.append(".zzz"_L1);
+            err = MimerSetString8(d->statementhandle, i + 1,
+                                  timeVal.toString(timeFormatString).toUtf8().constData());
+            if (!MIMER_SUCCEEDED(err)) {
+                setLastError(
+                        qMakeError(msgCouldNotSet("time", i),
+                                   err, QSqlError::StatementError, d->drv_d_func()));
+                return false;
+            }
+            break;
+        }
+        case MimerColumnTypes::Timestamp: {
+            QString dateTimeFormatString = "yyyy-MM-dd hh:mm:ss"_L1;
+            const QDateTime dateTimeVal = val.toDateTime();
+            if (dateTimeVal.time().msec() > 0)
+                dateTimeFormatString.append(".zzz"_L1);
+            err = MimerSetString8(
+                    d->statementhandle, i + 1,
+                    val.toDateTime().toString(dateTimeFormatString).toUtf8().constData());
+            if (!MIMER_SUCCEEDED(err)) {
+                setLastError(qMakeError(msgCouldNotSet("datetime", i),
+                        err, QSqlError::StatementError, d->drv_d_func()));
+                return false;
+            }
+            break;
+        }
+        case MimerColumnTypes::Blob: {
+            QByteArray blobArr = val.toByteArray();
+            const char *blobData = blobArr.constData();
+            qsizetype size = blobArr.size();
+            err = MimerSetLob(d->statementhandle, i + 1, size, &d->lobhandle);
+            if (MIMER_SUCCEEDED(err)) {
+                qsizetype maxSize = lobChunkMaxSizeSet;
+                if (size > maxSize) {
+                    qsizetype left_to_send = size;
+                    for (qsizetype k = 0; left_to_send > 0; k++) {
+                        if (left_to_send <= maxSize) {
+                            err = MimerSetBlobData(&d->lobhandle, &blobData[k * maxSize],
+                                                   left_to_send);
+                            left_to_send = 0;
+                        } else {
+                            err = MimerSetBlobData(&d->lobhandle, &blobData[k * maxSize], maxSize);
+                            left_to_send = left_to_send - maxSize;
+                        }
+                    }
+                    if (!MIMER_SUCCEEDED(err)) {
+                        setLastError(
+                                qMakeError(msgCouldNotSet("BLOB byte array", i),
+                                           err, QSqlError::StatementError, d->drv_d_func()));
+                        return false;
+                    }
+                } else {
+                    err = MimerSetBlobData(&d->lobhandle, blobArr, size);
+                }
+            }
+            if (!MIMER_SUCCEEDED(err)) {
+                setLastError(qMakeError(msgCouldNotSet("BLOB byte array", i),
+                        err, QSqlError::StatementError, d->drv_d_func()));
+                return false;
+            }
+            break;
+        }
+        case MimerColumnTypes::Clob: {
+            QByteArray string_b = val.toString().trimmed().toUtf8();
+            const char *string_u = string_b.constData();
+            size_t size_c = 1;
+            size_t size = 0;
+            while (string_u[size++])
+                if ((string_u[size] & 0xc0) != 0x80)
+                    size_c++;
+            err = MimerSetLob(d->statementhandle, i + 1, size_c, &d->lobhandle);
+            if (MIMER_SUCCEEDED(err)) {
+                constexpr size_t maxSize = lobChunkMaxSizeSet;
+                if (size > maxSize) {
+                    size_t left_to_send = size;
+                    size_t pos = 0;
+                    uint step_back = 0;
+                    while (left_to_send > 0 && step_back < maxSize) {
+                        step_back = 0;
+                        if (left_to_send <= maxSize) {
+                            err = MimerSetNclobData8(&d->lobhandle, &string_u[pos], left_to_send);
+                            left_to_send = 0;
+                        } else {
+                            // Check that we don't split a multi-byte utf-8 characters
+                            while (pos + maxSize - step_back > 0
+                                   && (string_u[pos + maxSize - step_back] & 0xc0) == 0x80)
+                                step_back++;
+                            err = MimerSetNclobData8(&d->lobhandle, &string_u[pos],
+                                                     maxSize - step_back);
+                            left_to_send = left_to_send - maxSize + step_back;
+                            pos += maxSize - step_back;
+                        }
+                        if (!MIMER_SUCCEEDED(err)) {
+                            setLastError(qMakeError(msgCouldNotSet("CLOB", i),
+                                    err, QSqlError::StatementError, d->drv_d_func()));
+                            return false;
+                        }
+                    }
+                } else {
+                    err = MimerSetNclobData8(&d->lobhandle, string_u, size);
+                }
+            }
+            if (!MIMER_SUCCEEDED(err)) {
+                setLastError(
+                        qMakeError(msgCouldNotSet("CLOB", i),
+                                   err, QSqlError::StatementError, d->drv_d_func()));
+                return false;
+            }
+            break;
+        }
+        case MimerColumnTypes::Unknown:
+        default:
+            setLastError(qMakeError(
+                    QCoreApplication::translate("QMimerSQLResult", "Unknown datatype, parameter %1")
+                            .arg(i),
+                    genericError, QSqlError::StatementError, nullptr));
+            return false;
+        }
+    }
+    if (d->execBatch)
+        return true;
+    err = MimerExecute(d->statementhandle);
+    if (MIMER_SUCCEEDED(err)) {
+        d->rowsAffected = err;
+        int k = 0;
+        for (qsizetype i = 0; i < values.size(); i++) {
+            if (bindValueType(i) == QSql::Out || bindValueType(i) == QSql::InOut) {
+                bindValue(i, data(k), QSql::In);
+                k++;
+            }
+        }
+        d->callWithOut = false;
+    }
+    setSelect(false);
+    if (MIMER_SEQUENCE_ERROR == err) {
+        err = MimerOpenCursor(d->statementhandle);
+        d->rowsAffected = err;
+        d->openCursor = true;
+        d->currentRow = QSql::BeforeFirstRow;
+        setSelect(true);
+    }
+    if (!MIMER_SUCCEEDED(err)) {
+        setLastError(
+                qMakeError(QCoreApplication::translate("QMimerSQLResult",
+                                                       "Could not execute statement/open cursor"),
+                           err, QSqlError::StatementError, d->drv_d_func()));
+        return false;
+    }
+    setActive(true);
+    return true;
+}
+
+bool QMimerSQLResult::execBatch(bool arrayBind)
+{
+    Q_D(QMimerSQLResult);
+    Q_UNUSED(arrayBind);
+    int32_t err;
+    const QVector<QVariant> values = boundValues();
+
+    // Check that we only have input parameters. Currently
+    // we can only handle batch operations without output parameters.
+    for (qsizetype i = 0; i < values.first().toList().size(); i++)
+        if (bindValueType(i) == QSql::Out || bindValueType(i) == QSql::InOut) {
+            setLastError(qMakeError(QCoreApplication::translate(
+                                            "QMimerSQLResult",
+                                            "Only input parameters can be used in batch operations"),
+                                    genericError, QSqlError::StatementError, nullptr));
+            d->execBatch = false;
+            return false;
+        }
+    d->execBatch = true;
+    for (qsizetype i = 0; i < values.first().toList().size(); i++) {
+        for (qsizetype j = 0; j < values.size(); j++)
+            d->batch_vector.append(values.at(j).toList().at(i));
+        exec();
+        if (i != (values.at(0).toList().size() - 1)) {
+            err = MimerAddBatch(d->statementhandle);
+            if (!MIMER_SUCCEEDED(err)) {
+                setLastError(qMakeError(
+                        //: %1 is the batch number
+                        QCoreApplication::translate("QMimerSQLResult", "Could not add batch %1")
+                                .arg(i),
+                        err, QSqlError::StatementError, d->drv_d_func()));
+                d->execBatch = false;
+                return false;
+            }
+        }
+        d->batch_vector.clear();
+    }
+    d->execBatch = false;
+    err = MimerExecute(d->statementhandle);
+    if (!MIMER_SUCCEEDED(err)) {
+        setLastError(qMakeError(
+                QCoreApplication::translate("QMimerSQLResult", "Could not execute batch"), err,
+                QSqlError::StatementError, d->drv_d_func()));
+        return false;
+    }
+    return true;
+}
+
+QVariant QMimerSQLResult::lastInsertId() const
+{
+    Q_D(const QMimerSQLResult);
+    int64_t lastSequence;
+    const int32_t err = MimerGetSequenceInt64(d->statementhandle, &lastSequence);
+    if (!MIMER_SUCCEEDED(err))
+        return QVariant(QMetaType(QMetaType::LongLong), nullptr);
+    return QVariant(qint64(lastSequence));
+}
+
+bool QMimerSQLDriver::hasFeature(DriverFeature f) const
+{
+    switch (f) {
+    case NamedPlaceholders: // Is true in reality but Qt parses Sql statement...
+    case EventNotifications:
+    case LowPrecisionNumbers:
+    case MultipleResultSets:
+    case SimpleLocking:
+    case CancelQuery:
+        return false;
+    case FinishQuery:
+    case LastInsertId:
+    case Transactions:
+    case QuerySize:
+    case BLOB:
+    case Unicode:
+    case PreparedQueries:
+    case PositionalPlaceholders:
+    case BatchOperations:
+        return true;
+    }
+    return true;
+}
+
+bool QMimerSQLDriver::open(const QString &db, const QString &user, const QString &password,
+                           const QString &host, int port, const QString &connOpts)
+{
+    Q_D(QMimerSQLDriver);
+    Q_UNUSED(host);
+    Q_UNUSED(port);
+    Q_UNUSED(connOpts);
+    if (isOpen())
+        close();
+    const int32_t err = MimerBeginSession8(db.toUtf8().constData(), user.toUtf8().constData(),
+                                           password.toUtf8().constData(), &d->sessionhandle);
+    if (!MIMER_SUCCEEDED(err)) {
+        setLastError(qMakeError(
+                QCoreApplication::translate("QMimerSQLDriver", "Could not connect to database")
+                        + " "_L1 + db,
+                err, QSqlError::ConnectionError, nullptr));
+        setOpenError(true);
+        return false;
+    }
+    d->dbUser = user;
+    d->dbName = db;
+    setOpen(true);
+    setOpenError(false);
+    return true;
+}
+
+void QMimerSQLDriver::close()
+{
+    Q_D(QMimerSQLDriver);
+    if (isOpen()) {
+        const int end_err = MimerEndSession(&d->sessionhandle);
+        if (MIMER_SUCCEEDED(end_err)) {
+            setOpen(false);
+            setOpenError(false);
+        }
+    }
+}
+
+QSqlResult *QMimerSQLDriver::createResult() const
+{
+    return new QMimerSQLResult(this);
+}
+
+QStringList QMimerSQLDriver::tables(QSql::TableType type) const
+{
+    QStringList tl;
+    if (!isOpen())
+        return tl;
+    QSqlQuery t(createResult());
+    QString sql;
+    switch (type) {
+    case QSql::Tables: {
+        sql = "select table_name from information_schema.tables where "
+              "table_type=\'BASE TABLE\' AND table_schema = CURRENT_USER"_L1;
+        break;
+    }
+    case QSql::SystemTables: {
+        sql = "select table_name from information_schema.tables where "
+              "table_type=\'BASE TABLE\' AND table_schema = \'SYSTEM\'"_L1;
+        break;
+    }
+    case QSql::Views: {
+        sql = "select table_name from information_schema.tables where "
+              "table_type=\'VIEW\' AND table_schema = CURRENT_USER"_L1;
+        break;
+    }
+    case QSql::AllTables: {
+        sql = "select table_name from information_schema.tables where "
+              "(table_type=\'VIEW\' or table_type=\'BASE TABLE\')"
+              " AND (table_schema = CURRENT_USER OR table_schema =\'SYSTEM\')"_L1;
+        break;
+    }
+    default:
+        break;
+    }
+    if (sql.length() > 0) {
+        t.exec(sql);
+        while (t.next())
+            tl.append(t.value(0).toString());
+    }
+    return tl;
+}
+
+QSqlIndex QMimerSQLDriver::primaryIndex(const QString &tablename) const
+{
+    Q_D(const QMimerSQLDriver);
+    if (!isOpen())
+        return QSqlIndex();
+    QString table = tablename;
+    if (isIdentifierEscaped(table, QSqlDriver::TableName))
+        table = stripDelimiters(table, QSqlDriver::TableName);
+    QSqlIndex index(tablename);
+    QSqlQuery t(createResult());
+    QString schema;
+    QString qualifiedName = table;
+    d->splitTableQualifier(qualifiedName, &schema, &table);
+    QString sql =
+            "select information_schema.ext_access_paths.column_name,"
+            "case when data_type = 'INTERVAL' then 'INTERVAL '|| interval_type "
+            "when data_type = 'INTEGER' and numeric_precision > 10 then 'BIGINT' "
+            "when data_type = 'INTEGER' and numeric_precision <= 10 AND NUMERIC_PRECISION > 5 "
+            "then 'INTEGER' when data_type = 'INTEGER' and numeric_precision <= 5 then 'SMALLINT' "
+            "else upper(data_type) end as data_type "
+            "from information_schema.ext_access_paths full outer join "
+            "information_schema.columns on information_schema.ext_access_paths.column_name = "
+            "information_schema.columns.column_name and "
+            "information_schema.ext_access_paths.table_name = "
+            "information_schema.columns.table_name where "
+            "information_schema.ext_access_paths.table_name = \'"_L1;
+    sql.append(table)
+            .append("\' and index_type = \'PRIMARY KEY\'"_L1);
+    if (schema.length() == 0)
+        sql.append(" and table_schema = CURRENT_USER"_L1);
+    else
+        sql.append(" and table_schema = \'"_L1).append(schema).append("\'"_L1);
+
+    if (!t.exec(sql))
+        return QSqlIndex();
+    int i = 0;
+    while (t.next()) {
+        QSqlField field(t.value(0).toString(),
+                        QMetaType(qDecodeMSQLType(qLookupMimDataType(t.value(1).toString()))),
+                        tablename);
+        index.insert(i, field);
+        index.setName(t.value(0).toString());
+        i++;
+    }
+    return index;
+}
+
+QSqlRecord QMimerSQLDriver::record(const QString &tablename) const
+{
+    Q_D(const QMimerSQLDriver);
+    if (!isOpen())
+        return QSqlRecord();
+    QSqlRecord rec;
+    QSqlQuery t(createResult());
+    QString qualifiedName = tablename;
+    if (isIdentifierEscaped(qualifiedName, QSqlDriver::TableName))
+        qualifiedName = stripDelimiters(qualifiedName, QSqlDriver::TableName);
+    QString schema, table;
+    d->splitTableQualifier(qualifiedName, &schema, &table);
+
+    QString sql =
+            "select column_name, case when data_type = 'INTERVAL' then 'INTERVAL '|| interval_type "
+            "when data_type = 'INTEGER' and numeric_precision > 10 then 'BIGINT' "
+            "when data_type = 'INTEGER' and numeric_precision <= 10 AND numeric_precision > 5 "
+            "then 'INTEGER' when data_type = 'INTEGER' and numeric_precision <= 5 then 'SMALLINT' "
+            "else UPPER(data_type) end as data_type, case when is_nullable = 'YES' then false else "
+            "true end as required, "
+            "coalesce(numeric_precision, coalesce(datetime_precision,coalesce(interval_precision, "
+            "-1))) as prec from information_schema.columns where table_name = \'"_L1;
+    if (schema.length() == 0)
+        sql.append(table).append("\' and table_schema = CURRENT_USER"_L1);
+    else
+        sql.append(table).append("\' and table_schema = \'"_L1).append(schema).append("\'"_L1);
+    sql.append(" order by ordinal_position"_L1);
+    if (!t.exec(sql))
+        return QSqlRecord();
+
+    while (t.next()) {
+        QSqlField field(t.value(0).toString(),
+                        QMetaType(qDecodeMSQLType(qLookupMimDataType(t.value(1).toString()))),
+                        tablename);
+        field.setRequired(t.value(3).toBool());
+        if (t.value(3).toInt() != -1)
+            field.setPrecision(t.value(3).toInt());
+        rec.append(field);
+    }
+
+    return rec;
+}
+
+QVariant QMimerSQLDriver::handle() const
+{
+    Q_D(const QMimerSQLDriver);
+    return QVariant::fromValue(d->sessionhandle);
+}
+
+QString QMimerSQLDriver::escapeIdentifier(const QString &identifier, IdentifierType type) const
+{
+    Q_UNUSED(type);
+    QString res = identifier;
+    if (!identifier.isEmpty() && !identifier.startsWith(u'"') && !identifier.endsWith(u'"')) {
+        res.replace(u'"', "\"\""_L1);
+        res = u'"' + res + u'"';
+        res.replace(u'.', "\".\""_L1);
+    }
+    return res;
+}
+
+bool QMimerSQLDriver::beginTransaction()
+{
+    Q_D(const QMimerSQLDriver);
+    const int32_t err = MimerBeginTransaction(d->sessionhandle, MIMER_TRANS_READWRITE);
+    if (!MIMER_SUCCEEDED(err)) {
+        setLastError(qMakeError(
+                QCoreApplication::translate("QMimerSQLDriver", "Could not start transaction"), err,
+                QSqlError::TransactionError, d));
+        return false;
+    }
+    return true;
+}
+
+bool QMimerSQLDriver::commitTransaction()
+{
+    Q_D(const QMimerSQLDriver);
+    const int32_t err = MimerEndTransaction(d->sessionhandle, MIMER_COMMIT);
+    if (!MIMER_SUCCEEDED(err)) {
+        setLastError(qMakeError(
+                QCoreApplication::translate("QMimerSQLDriver", "Could not commit transaction"), err,
+                QSqlError::TransactionError, d));
+        return false;
+    }
+    return true;
+}
+
+bool QMimerSQLDriver::rollbackTransaction()
+{
+    Q_D(const QMimerSQLDriver);
+    const int32_t err = MimerEndTransaction(d->sessionhandle, MIMER_ROLLBACK);
+    if (!MIMER_SUCCEEDED(err)) {
+        setLastError(qMakeError(
+                QCoreApplication::translate("QMimerSQLDriver", "Could not roll back transaction"),
+                err, QSqlError::TransactionError, d));
+        return false;
+    }
+    return true;
+}
+
+void QMimerSQLDriverPrivate::splitTableQualifier(const QString &qualifiedName, QString *schema,
+                                                 QString *table) const
+{
+    const QList<QStringView> l = QStringView(qualifiedName).split(u'.');
+    int n = l.count();
+    if (n > 2) {
+        return; // can't possibly be a valid table qualifier
+    } else if (n == 1) {
+        *schema = QString();
+        *table = l.at(0).toString();
+    } else {
+        *schema = l.at(0).toString();
+        *table = l.at(1).toString();
+    }
+}
+
+QT_END_NAMESPACE
diff --git a/src/plugins/sqldrivers/mimer/qsql_mimer.h b/src/plugins/sqldrivers/mimer/qsql_mimer.h
new file mode 100644
index 00000000..03ad8f21
--- /dev/null
+++ b/src/plugins/sqldrivers/mimer/qsql_mimer.h
@@ -0,0 +1,50 @@
+// Copyright (C) 2022 The Qt Company Ltd.
+// Copyright (C) 2022 Mimer Information Technology
+// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
+#ifndef QSQL_MIMER_H
+#define QSQL_MIMER_H
+
+#include <QtSql/qsqldriver.h>
+#include <QUuid>
+#include <mimerapi.h>
+
+#ifdef QT_PLUGIN
+#    define Q_EXPORT_SQLDRIVER_MIMER
+#else
+#    define Q_EXPORT_SQLDRIVER_MIMER Q_SQL_EXPORT
+#endif
+
+QT_BEGIN_NAMESPACE
+
+class QMimerSQLDriverPrivate;
+
+class Q_EXPORT_SQLDRIVER_MIMER QMimerSQLDriver : public QSqlDriver
+{
+    friend class QMimerSQLResultPrivate;
+    Q_DECLARE_PRIVATE(QMimerSQLDriver)
+    Q_OBJECT
+public:
+    explicit QMimerSQLDriver(QObject *parent = nullptr);
+    explicit QMimerSQLDriver(MimerSession *conn, QObject *parent = nullptr);
+    ~QMimerSQLDriver() override;
+    bool hasFeature(DriverFeature f) const override;
+    bool open(const QString &db, const QString &user, const QString &password, const QString &host,
+              int port, const QString &connOpts) override;
+    void close() override;
+    QSqlResult *createResult() const override;
+    QStringList tables(QSql::TableType type) const override;
+    QSqlIndex primaryIndex(const QString &tablename) const override;
+    QSqlRecord record(const QString &tablename) const override;
+    QVariant handle() const override;
+    QString escapeIdentifier(const QString &identifier, IdentifierType type) const override;
+protected:
+    bool beginTransaction() override;
+    bool commitTransaction() override;
+    bool rollbackTransaction() override;
+
+private:
+};
+
+QT_END_NAMESPACE
+
+#endif // QSQL_MIMER
diff --git a/src/plugins/sqldrivers/mysql/qsql_mysql.cpp b/src/plugins/sqldrivers/mysql/qsql_mysql.cpp
index e3e6ecff..d5a3cd09 100644
--- a/src/plugins/sqldrivers/mysql/qsql_mysql.cpp
+++ b/src/plugins/sqldrivers/mysql/qsql_mysql.cpp
@@ -215,6 +215,7 @@ static QMetaType qDecodeMYSQLType(enum_field_types mysqltype, uint flags)
     case MYSQL_TYPE_YEAR:
         type = QMetaType::Int;
         break;
+    case MYSQL_TYPE_BIT:
     case MYSQL_TYPE_LONGLONG:
         type = (flags & UNSIGNED_FLAG) ? QMetaType::ULongLong : QMetaType::LongLong;
         break;
@@ -303,6 +304,11 @@ static bool qIsInteger(int t)
         || t == QMetaType::LongLong || t == QMetaType::ULongLong;
 }
 
+static inline bool qIsBitfield(enum_field_types type)
+{
+    return type == MYSQL_TYPE_BIT;
+}
+
 void QMYSQLResultPrivate::bindBlobs()
 {
     for (int i = 0; i < fields.size(); ++i) {
@@ -519,6 +525,20 @@ bool QMYSQLResult::fetchFirst()
     return fetch(0);
 }
 
+static inline uint64_t
+qDecodeBitfield(const QMYSQLResultPrivate::QMyField &f, const char *outField)
+{
+    // byte-aligned length
+    const auto numBytes = (f.myField->length + 7) / 8;
+    uint64_t val = 0;
+    for (unsigned long i = 0; i < numBytes && outField; ++i) {
+        uint64_t tmp = static_cast<uint8_t>(outField[i]);
+        val <<= 8;
+        val |= tmp;
+    }
+    return val;
+}
+
 QVariant QMYSQLResult::data(int field)
 {
     Q_D(QMYSQLResult);
@@ -536,8 +556,9 @@ QVariant QMYSQLResult::data(int field)
     if (d->preparedQuery) {
         if (f.nullIndicator)
             return QVariant(f.type);
-
-        if (qIsInteger(f.type.id())) {
+        if (qIsBitfield(f.myField->type)) {
+            return QVariant::fromValue(qDecodeBitfield(f, f.outField));
+        } else if (qIsInteger(f.type.id())) {
             QVariant variant(f.type, f.outField);
             // we never want to return char variants here, see QTBUG-53397
             if (f.type.id() == QMetaType::UChar)
@@ -569,6 +590,9 @@ QVariant QMYSQLResult::data(int field)
             return QVariant(f.type);
         }
 
+        if (qIsBitfield(f.myField->type))
+            return QVariant::fromValue(qDecodeBitfield(f, d->row[field]));
+
         fieldLength = mysql_fetch_lengths(d->result)[field];
 
         if (f.type.id() != QMetaType::QByteArray)
@@ -677,6 +701,7 @@ bool QMYSQLResult::reset (const QString& query)
         for(int i = 0; i < numFields; i++) {
             MYSQL_FIELD* field = mysql_fetch_field_direct(d->result, i);
             d->fields[i].type = qDecodeMYSQLType(field->type, field->flags);
+            d->fields[i].myField = field;
         }
         setAt(QSql::BeforeFirstRow);
     }
@@ -794,6 +819,7 @@ bool QMYSQLResult::nextResult()
         for (unsigned int i = 0; i < numFields; i++) {
             MYSQL_FIELD *field = mysql_fetch_field_direct(d->result, i);
             d->fields[i].type = qDecodeMYSQLType(field->type, field->flags);
+            d->fields[i].myField = field;
         }
     }
 
@@ -1178,6 +1204,45 @@ static bool setOptionBool(MYSQL *mysql, mysql_option option, QStringView v)
     return mysql_options(mysql, option, &val) == 0;
 }
 
+// MYSQL_OPT_SSL_MODE was introduced with MySQL 5.7.11
+#if defined(MYSQL_VERSION_ID) && MYSQL_VERSION_ID >= 50711 && !defined(MARIADB_VERSION_ID)
+static bool setOptionSslMode(MYSQL *mysql, mysql_option option, QStringView v)
+{
+    mysql_ssl_mode sslMode = SSL_MODE_DISABLED;
+    if (v == "DISABLED"_L1 || v == "SSL_MODE_DISABLED"_L1)
+        sslMode = SSL_MODE_DISABLED;
+    else if (v == "PREFERRED"_L1 || v == "SSL_MODE_PREFERRED"_L1)
+        sslMode = SSL_MODE_PREFERRED;
+    else if (v == "REQUIRED"_L1 || v == "SSL_MODE_REQUIRED"_L1)
+        sslMode = SSL_MODE_REQUIRED;
+    else if (v == "VERIFY_CA"_L1 || v == "SSL_MODE_VERIFY_CA"_L1)
+        sslMode = SSL_MODE_VERIFY_CA;
+    else if (v == "VERIFY_IDENTITY"_L1 || v == "SSL_MODE_VERIFY_IDENTITY"_L1)
+        sslMode = SSL_MODE_VERIFY_IDENTITY;
+    else
+        qWarning() << "Unknown ssl mode '" << v << "' - using SSL_MODE_DISABLED";
+    return mysql_options(mysql, option, &sslMode) == 0;
+}
+#endif
+
+static bool setOptionProtocol(MYSQL *mysql, mysql_option option, QStringView v)
+{
+    mysql_protocol_type proto = MYSQL_PROTOCOL_DEFAULT;
+    if (v == "TCP"_L1 || v == "MYSQL_PROTOCOL_TCP"_L1)
+        proto = MYSQL_PROTOCOL_TCP;
+    else if (v == "SOCKET"_L1 || v == "MYSQL_PROTOCOL_SOCKET"_L1)
+        proto = MYSQL_PROTOCOL_SOCKET;
+    else if (v == "PIPE"_L1 || v == "MYSQL_PROTOCOL_PIPE"_L1)
+        proto = MYSQL_PROTOCOL_PIPE;
+    else if (v == "MEMORY"_L1 || v == "MYSQL_PROTOCOL_MEMORY"_L1)
+        proto = MYSQL_PROTOCOL_MEMORY;
+    else if (v == "DEFAULT"_L1 || v == "MYSQL_PROTOCOL_DEFAULT"_L1)
+        proto = MYSQL_PROTOCOL_DEFAULT;
+    else
+        qWarning() << "Unknown protocol '" << v << "' - using MYSQL_PROTOCOL_DEFAULT";
+    return mysql_options(mysql, option, &proto) == 0;
+}
+
 bool QMYSQLDriver::open(const QString &db,
                         const QString &user,
                         const QString &password,
@@ -1215,11 +1280,19 @@ bool QMYSQLDriver::open(const QString &db,
         {"MYSQL_OPT_SSL_CIPHER"_L1,      MYSQL_OPT_SSL_CIPHER,      setOptionString},
         {"MYSQL_OPT_SSL_CRL"_L1,         MYSQL_OPT_SSL_CRL,         setOptionString},
         {"MYSQL_OPT_SSL_CRLPATH"_L1,     MYSQL_OPT_SSL_CRLPATH,     setOptionString},
+#if defined(MYSQL_VERSION_ID) && MYSQL_VERSION_ID >= 50710
+        {"MYSQL_OPT_TLS_VERSION"_L1,     MYSQL_OPT_TLS_VERSION,     setOptionString},
+#endif
+#if defined(MYSQL_VERSION_ID) && MYSQL_VERSION_ID >= 50711 && !defined(MARIADB_VERSION_ID)
+        {"MYSQL_OPT_SSL_MODE"_L1,        MYSQL_OPT_SSL_MODE,        setOptionSslMode},
+#endif
         {"MYSQL_OPT_CONNECT_TIMEOUT"_L1, MYSQL_OPT_CONNECT_TIMEOUT, setOptionInt},
         {"MYSQL_OPT_READ_TIMEOUT"_L1,    MYSQL_OPT_READ_TIMEOUT,    setOptionInt},
         {"MYSQL_OPT_WRITE_TIMEOUT"_L1,   MYSQL_OPT_WRITE_TIMEOUT,   setOptionInt},
         {"MYSQL_OPT_RECONNECT"_L1,       MYSQL_OPT_RECONNECT,       setOptionBool},
         {"MYSQL_OPT_LOCAL_INFILE"_L1,    MYSQL_OPT_LOCAL_INFILE,    setOptionInt},
+        {"MYSQL_OPT_PROTOCOL"_L1,        MYSQL_OPT_PROTOCOL,        setOptionProtocol},
+        {"MYSQL_SHARED_MEMORY_BASE_NAME"_L1, MYSQL_SHARED_MEMORY_BASE_NAME, setOptionString},
     };
     auto trySetOption = [&](const QStringView &key, const QStringView &value) -> bool {
       for (const mysqloptions &opt : options) {
diff --git a/src/plugins/sqldrivers/oci/qsql_oci.cpp b/src/plugins/sqldrivers/oci/qsql_oci.cpp
index 75cff5c4..1a9eb041 100644
--- a/src/plugins/sqldrivers/oci/qsql_oci.cpp
+++ b/src/plugins/sqldrivers/oci/qsql_oci.cpp
@@ -163,7 +163,7 @@ QDateTime QOCIDateTime::fromOCIDateTime(OCIEnv *env, OCIError *err, OCIDateTime
         secondsOffset = -secondsOffset;
     // OCIDateTimeGetTime gives "fractions of second" as nanoseconds
     return QDateTime(QDate(year, month, day), QTime(hour, minute, second, nsec / 1000000),
-                     Qt::OffsetFromUTC, secondsOffset);
+                     QTimeZone::fromSecondsAheadOfUtc(secondsOffset));
 }
 
 struct TempStorage {
@@ -189,6 +189,7 @@ public:
     OCISession *authp = nullptr;
     OCITrans *trans = nullptr;
     OCIError *err = nullptr;
+    ub4 authMode = OCI_DEFAULT;
     bool transaction = false;
     int serverVersion = -1;
     int prefetchRows = -1;
@@ -2186,17 +2187,16 @@ bool QOCIDriver::hasFeature(DriverFeature f) const
 
 static void qParseOpts(const QString &options, QOCIDriverPrivate *d)
 {
-    const QStringList opts(options.split(u';', Qt::SkipEmptyParts));
-    for (int i = 0; i < opts.count(); ++i) {
-        const QString tmp(opts.at(i));
+    const QVector<QStringView> opts(QStringView(options).split(u';', Qt::SkipEmptyParts));
+    for (const auto tmp : opts) {
         qsizetype idx;
         if ((idx = tmp.indexOf(u'=')) == -1) {
             qWarning("QOCIDriver::parseArgs: Invalid parameter: '%s'",
                      tmp.toLocal8Bit().constData());
             continue;
         }
-        const QString opt = tmp.left(idx);
-        const QString val = tmp.mid(idx + 1).simplified();
+        const QStringView opt = tmp.left(idx);
+        const QStringView val = tmp.mid(idx + 1).trimmed();
         bool ok;
         if (opt == "OCI_ATTR_PREFETCH_ROWS"_L1) {
             d->prefetchRows = val.toInt(&ok);
@@ -2206,9 +2206,18 @@ static void qParseOpts(const QString &options, QOCIDriverPrivate *d)
             d->prefetchMem = val.toInt(&ok);
             if (!ok)
                 d->prefetchMem = -1;
+        } else if (opt == "OCI_AUTH_MODE"_L1) {
+            if (val == "OCI_SYSDBA"_L1) {
+                d->authMode = OCI_SYSDBA;
+            } else if (val == "OCI_SYSOPER"_L1) {
+                d->authMode = OCI_SYSOPER;
+            } else if (val != "OCI_DEFAULT"_L1) {
+                qWarning("QOCIDriver::parseArgs: Unsupported value for OCI_AUTH_MODE: '%s'",
+                         val.toLocal8Bit().constData());
+            }
         } else {
-            qWarning ("QOCIDriver::parseArgs: Invalid parameter: '%s'",
-                      opt.toLocal8Bit().constData());
+            qWarning("QOCIDriver::parseArgs: Invalid parameter: '%s'",
+                     opt.toLocal8Bit().constData());
         }
     }
 }
@@ -2272,9 +2281,9 @@ bool QOCIDriver::open(const QString & db,
 
     if (r == OCI_SUCCESS) {
         if (user.isEmpty() && password.isEmpty())
-            r = OCISessionBegin(d->svc, d->err, d->authp, OCI_CRED_EXT, OCI_DEFAULT);
+            r = OCISessionBegin(d->svc, d->err, d->authp, OCI_CRED_EXT, d->authMode);
         else
-            r = OCISessionBegin(d->svc, d->err, d->authp, OCI_CRED_RDBMS, OCI_DEFAULT);
+            r = OCISessionBegin(d->svc, d->err, d->authp, OCI_CRED_RDBMS, d->authMode);
     }
     if (r == OCI_SUCCESS || r == OCI_SUCCESS_WITH_INFO)
         r = OCIAttrSet(d->svc, OCI_HTYPE_SVCCTX, d->authp, 0, OCI_ATTR_SESSION, d->err);
@@ -2737,10 +2746,17 @@ QString QOCIDriver::escapeIdentifier(const QString &identifier, IdentifierType t
     QString res = identifier;
     if (!identifier.isEmpty() && !isIdentifierEscaped(identifier, type)) {
         res.replace(u'"', "\"\""_L1);
-        res.prepend(u'"').append(u'"');
         res.replace(u'.', "\".\""_L1);
+        res = u'"' + res + u'"';
     }
     return res;
 }
 
+int QOCIDriver::maximumIdentifierLength(IdentifierType type) const
+{
+    Q_D(const QOCIDriver);
+    Q_UNUSED(type);
+    return d->serverVersion > 12 ? 128 : 30;
+}
+
 QT_END_NAMESPACE
diff --git a/src/plugins/sqldrivers/oci/qsql_oci_p.h b/src/plugins/sqldrivers/oci/qsql_oci_p.h
index b2aca6d5..91fef9de 100644
--- a/src/plugins/sqldrivers/oci/qsql_oci_p.h
+++ b/src/plugins/sqldrivers/oci/qsql_oci_p.h
@@ -58,6 +58,7 @@ public:
                         bool trimStrings) const override;
     QVariant handle() const override;
     QString escapeIdentifier(const QString &identifier, IdentifierType) const override;
+    int maximumIdentifierLength(IdentifierType type) const override;
 
 protected:
     bool                beginTransaction() override;
diff --git a/src/plugins/sqldrivers/odbc/qsql_odbc.cpp b/src/plugins/sqldrivers/odbc/qsql_odbc.cpp
index edf63d08..1a57e8fc 100644
--- a/src/plugins/sqldrivers/odbc/qsql_odbc.cpp
+++ b/src/plugins/sqldrivers/odbc/qsql_odbc.cpp
@@ -14,6 +14,7 @@
 #include <qsqlerror.h>
 #include <qsqlfield.h>
 #include <qsqlindex.h>
+#include <qstringconverter.h>
 #include <qstringlist.h>
 #include <qvariant.h>
 #include <qvarlengtharray.h>
@@ -21,6 +22,7 @@
 #include <QSqlQuery>
 #include <QtSql/private/qsqldriver_p.h>
 #include <QtSql/private/qsqlresult_p.h>
+#include "private/qtools_p.h"
 
 QT_BEGIN_NAMESPACE
 
@@ -34,68 +36,50 @@ using namespace Qt::StringLiterals;
 // undefine this to prevent initial check of the ODBC driver
 #define ODBC_CHECK_DRIVER
 
-static const int COLNAMESIZE = 256;
-static const SQLSMALLINT TABLENAMESIZE = 128;
+static constexpr int COLNAMESIZE = 256;
+static constexpr SQLSMALLINT TABLENAMESIZE = 128;
 //Map Qt parameter types to ODBC types
-static const SQLSMALLINT qParamType[4] = { SQL_PARAM_INPUT, SQL_PARAM_INPUT, SQL_PARAM_OUTPUT, SQL_PARAM_INPUT_OUTPUT };
+static constexpr SQLSMALLINT qParamType[4] = { SQL_PARAM_INPUT, SQL_PARAM_INPUT, SQL_PARAM_OUTPUT, SQL_PARAM_INPUT_OUTPUT };
 
-inline static QString fromSQLTCHAR(const QVarLengthArray<SQLTCHAR>& input, qsizetype size=-1)
+template<typename C, int SIZE = sizeof(SQLTCHAR)>
+inline static QString fromSQLTCHAR(const C &input, qsizetype size = -1)
 {
-    QString result;
-
     // Remove any trailing \0 as some drivers misguidedly append one
-    int realsize = qMin(size, input.size());
-    if (realsize > 0 && input[realsize-1] == 0)
+    qsizetype realsize = qMin(size, input.size());
+    if (realsize > 0 && input[realsize - 1] == 0)
         realsize--;
-    switch(sizeof(SQLTCHAR)) {
-        case 1:
-            result=QString::fromUtf8((const char *)input.constData(), realsize);
-            break;
-        case 2:
-            result = QString::fromUtf16(reinterpret_cast<const char16_t *>(input.constData()), realsize);
-            break;
-        case 4:
-            result = QString::fromUcs4(reinterpret_cast<const char32_t *>(input.constData()), realsize);
-            break;
-        default:
-            qCritical("sizeof(SQLTCHAR) is %d. Don't know how to handle this.", int(sizeof(SQLTCHAR)));
-    }
-    return result;
+    if constexpr (SIZE == 1)
+        return QString::fromUtf8(reinterpret_cast<const char *>(input.constData()), realsize);
+    else if constexpr (SIZE == 2)
+        return QString::fromUtf16(reinterpret_cast<const char16_t *>(input.constData()), realsize);
+    else if constexpr (SIZE == 4)
+        return QString::fromUcs4(reinterpret_cast<const char32_t *>(input.constData()), realsize);
+    else
+        static_assert(QtPrivate::value_dependent_false<SIZE>(),
+                      "Don't know how to handle sizeof(SQLTCHAR) != 1/2/4");
 }
 
-template <size_t SizeOfChar = sizeof(SQLTCHAR)>
-void toSQLTCHARImpl(QVarLengthArray<SQLTCHAR> &result, const QString &input); // primary template undefined
-
-template <typename Container>
-void do_append(QVarLengthArray<SQLTCHAR> &result, const Container &c)
+template<int SIZE = sizeof(SQLTCHAR)>
+QStringConverter::Encoding encodingForSqlTChar()
 {
-    result.append(reinterpret_cast<const SQLTCHAR *>(c.data()), c.size());
-}
-
-template <>
-void toSQLTCHARImpl<1>(QVarLengthArray<SQLTCHAR> &result, const QString &input)
-{
-    const auto u8 = input.toUtf8();
-    do_append(result, u8);
-}
-
-template <>
-void toSQLTCHARImpl<2>(QVarLengthArray<SQLTCHAR> &result, const QString &input)
-{
-    do_append(result, input);
-}
-
-template <>
-void toSQLTCHARImpl<4>(QVarLengthArray<SQLTCHAR> &result, const QString &input)
-{
-    const auto u32 = input.toUcs4();
-    do_append(result, u32);
+    if constexpr (SIZE == 1)
+        return QStringConverter::Utf8;
+    else if constexpr (SIZE == 2)
+        return QStringConverter::Utf16;
+    else if constexpr (SIZE == 4)
+        return QStringConverter::Utf32;
+    else
+        static_assert(QtPrivate::value_dependent_false<SIZE>(),
+                      "Don't know how to handle sizeof(SQLTCHAR) != 1/2/4");
 }
 
 inline static QVarLengthArray<SQLTCHAR> toSQLTCHAR(const QString &input)
 {
     QVarLengthArray<SQLTCHAR> result;
-    toSQLTCHARImpl(result, input);
+    QStringEncoder enc(encodingForSqlTChar());
+    result.resize(enc.requiredSpace(input.size()));
+    const auto end = enc.appendToBuffer(reinterpret_cast<char *>(result.data()), input);
+    result.resize((end - reinterpret_cast<char *>(result.data())) / sizeof(SQLTCHAR));
     return result;
 }
 
@@ -127,7 +111,7 @@ public:
     void checkDateTimePrecision();
     bool setConnectionOptions(const QString& connOpts);
     void splitTableQualifier(const QString &qualifier, QString &catalog,
-                             QString &schema, QString &table);
+                             QString &schema, QString &table) const;
     DefaultCase defaultCase() const;
     QString adjustCase(const QString&) const;
     QChar quoteChar();
@@ -213,118 +197,115 @@ void QODBCResultPrivate::updateStmtHandleState()
     disconnectCount = drv_d_func() ? drv_d_func()->disconnectCount : 0;
 }
 
-static QString qWarnODBCHandle(int handleType, SQLHANDLE handle, int *nativeCode = nullptr)
+struct DiagRecord
 {
-    SQLINTEGER nativeCode_ = 0;
+    QString description;
+    QString sqlState;
+    QString errorCode;
+};
+static QList<DiagRecord> qWarnODBCHandle(int handleType, SQLHANDLE handle)
+{
+    SQLINTEGER nativeCode = 0;
     SQLSMALLINT msgLen = 0;
+    SQLSMALLINT i = 1;
     SQLRETURN r = SQL_NO_DATA;
-    SQLTCHAR state_[SQL_SQLSTATE_SIZE+1];
-    QVarLengthArray<SQLTCHAR> description_(SQL_MAX_MESSAGE_LENGTH);
-    QString result;
-    int i = 1;
+    QVarLengthArray<SQLTCHAR, SQL_SQLSTATE_SIZE + 1> state(SQL_SQLSTATE_SIZE + 1);
+    QVarLengthArray<SQLTCHAR, SQL_MAX_MESSAGE_LENGTH + 1> description(SQL_MAX_MESSAGE_LENGTH + 1);
+    QList<DiagRecord> result;
 
-    description_[0] = 0;
+    if (!handle)
+        return result;
     do {
         r = SQLGetDiagRec(handleType,
                           handle,
                           i,
-                          state_,
-                          &nativeCode_,
-                          0,
-                          0,
+                          state.data(),
+                          &nativeCode,
+                          description.data(),
+                          description.size(),
                           &msgLen);
-        if ((r == SQL_SUCCESS || r == SQL_SUCCESS_WITH_INFO) && msgLen > 0)
-            description_.resize(msgLen+1);
-        r = SQLGetDiagRec(handleType,
-                            handle,
-                            i,
-                            state_,
-                            &nativeCode_,
-                            description_.data(),
-                            description_.size(),
-                            &msgLen);
+        if (msgLen >= description.size()) {
+            description.resize(msgLen + 1); // incl. \0 termination
+            continue;
+        }
         if (r == SQL_SUCCESS || r == SQL_SUCCESS_WITH_INFO) {
-            if (nativeCode)
-                *nativeCode = nativeCode_;
-            const QString tmpstore = fromSQLTCHAR(description_, msgLen);
-            if (result != tmpstore) {
-                if (!result.isEmpty())
-                    result += u' ';
-                result += tmpstore;
-            }
+            result.push_back({fromSQLTCHAR(description, msgLen),
+                              fromSQLTCHAR(state),
+                              QString::number(nativeCode)});
         } else if (r == SQL_ERROR || r == SQL_INVALID_HANDLE) {
-            return result;
+            break;
         }
         ++i;
     } while (r != SQL_NO_DATA);
     return result;
 }
 
-static QString qODBCWarn(const SQLHANDLE hStmt, const SQLHANDLE envHandle = 0,
-                         const SQLHANDLE pDbC = 0, int *nativeCode = nullptr)
+static QList<DiagRecord> qODBCWarn(const SQLHANDLE hStmt,
+                                   const SQLHANDLE envHandle = nullptr,
+                                   const SQLHANDLE pDbC = nullptr)
 {
-    QString result;
-    if (envHandle)
-        result += qWarnODBCHandle(SQL_HANDLE_ENV, envHandle, nativeCode);
-    if (pDbC) {
-        const QString dMessage = qWarnODBCHandle(SQL_HANDLE_DBC, pDbC, nativeCode);
-        if (!dMessage.isEmpty()) {
-            if (!result.isEmpty())
-                result += u' ';
-            result += dMessage;
-        }
-    }
-    if (hStmt) {
-        const QString hMessage = qWarnODBCHandle(SQL_HANDLE_STMT, hStmt, nativeCode);
-        if (!hMessage.isEmpty()) {
-            if (!result.isEmpty())
-                result += u' ';
-            result += hMessage;
-        }
-    }
+    QList<DiagRecord> result;
+    result.append(qWarnODBCHandle(SQL_HANDLE_ENV, envHandle));
+    result.append(qWarnODBCHandle(SQL_HANDLE_DBC, pDbC));
+    result.append(qWarnODBCHandle(SQL_HANDLE_STMT, hStmt));
     return result;
 }
 
-static QString qODBCWarn(const QODBCResultPrivate* odbc, int *nativeCode = nullptr)
+static QList<DiagRecord> qODBCWarn(const QODBCResultPrivate *odbc)
 {
-    return qODBCWarn(odbc->hStmt, odbc->dpEnv(), odbc->dpDbc(), nativeCode);
+    return qODBCWarn(odbc->hStmt, odbc->dpEnv(), odbc->dpDbc());
 }
 
-static QString qODBCWarn(const QODBCDriverPrivate* odbc, int *nativeCode = nullptr)
+static QList<DiagRecord> qODBCWarn(const QODBCDriverPrivate *odbc)
 {
-    return qODBCWarn(0, odbc->hEnv, odbc->hDbc, nativeCode);
+    return qODBCWarn(nullptr, odbc->hEnv, odbc->hDbc);
 }
 
-static void qSqlWarning(const QString& message, const QODBCResultPrivate* odbc)
+static DiagRecord combineRecords(const QList<DiagRecord> &records)
 {
-    qWarning() << message << "\tError:" << qODBCWarn(odbc);
+    const auto add = [](const DiagRecord &a, const DiagRecord &b) {
+        return DiagRecord{a.description + u' ' + b.description,
+                          a.sqlState + u';' + b.sqlState,
+                          a.errorCode + u';' + b.errorCode};
+    };
+    return std::accumulate(std::next(records.begin()), records.end(), records.front(), add);
 }
 
-static void qSqlWarning(const QString &message, const QODBCDriverPrivate *odbc)
+static QSqlError errorFromDiagRecords(const QString &err,
+                                      QSqlError::ErrorType type,
+                                      const QList<DiagRecord> &records)
 {
-    qWarning() << message << "\tError:" << qODBCWarn(odbc);
+    if (records.empty())
+        return QSqlError("QODBC: unknown error"_L1, {}, type, {});
+    const auto combined = combineRecords(records);
+    return QSqlError("QODBC: "_L1 + err, combined.description + ", "_L1 + combined.sqlState, type,
+                     combined.errorCode);
 }
 
-static void qSqlWarning(const QString &message, const SQLHANDLE hStmt)
+static QString errorStringFromDiagRecords(const QList<DiagRecord>& records)
 {
-    qWarning() << message << "\tError:" << qODBCWarn(hStmt);
+    const auto combined = combineRecords(records);
+    return combined.description;
 }
 
-static QSqlError qMakeError(const QString& err, QSqlError::ErrorType type, const QODBCResultPrivate* p)
+template<class T>
+static void qSqlWarning(const QString &message, T &&val)
 {
-    int nativeCode = -1;
-    QString message = qODBCWarn(p, &nativeCode);
-    return QSqlError("QODBC: "_L1 + err, message, type,
-                     nativeCode != -1 ? QString::number(nativeCode) : QString());
+    qWarning() << message << "\tError:" << errorStringFromDiagRecords(qODBCWarn(val));
 }
 
-static QSqlError qMakeError(const QString& err, QSqlError::ErrorType type,
-                            const QODBCDriverPrivate* p)
+static QSqlError qMakeError(const QString &err,
+                            QSqlError::ErrorType type,
+                            const QODBCResultPrivate *p)
 {
-    int nativeCode = -1;
-    QString message = qODBCWarn(p, &nativeCode);
-    return QSqlError("QODBC: "_L1 + err, message, type,
-                     nativeCode != -1 ? QString::number(nativeCode) : QString());
+    return errorFromDiagRecords(err, type, qODBCWarn(p));
+}
+
+static QSqlError qMakeError(const QString &err,
+                            QSqlError::ErrorType type,
+                            const QODBCDriverPrivate *p)
+{
+    return errorFromDiagRecords(err, type, qODBCWarn(p));
 }
 
 static QMetaType qDecodeODBCType(SQLSMALLINT sqltype, bool isSigned = true)
@@ -391,113 +372,67 @@ static QMetaType qDecodeODBCType(SQLSMALLINT sqltype, bool isSigned = true)
     return QMetaType(type);
 }
 
-static QVariant qGetStringData(SQLHANDLE hStmt, int column, int colSize, bool unicode)
+template <typename CT>
+static QVariant getStringDataImpl(SQLHANDLE hStmt, SQLUSMALLINT column, qsizetype colSize, SQLSMALLINT targetType)
 {
     QString fieldVal;
     SQLRETURN r = SQL_ERROR;
     SQLLEN lengthIndicator = 0;
+    QVarLengthArray<CT> buf(colSize);
+    while (true) {
+        r = SQLGetData(hStmt,
+                       column + 1,
+                       targetType,
+                       SQLPOINTER(buf.data()), SQLINTEGER(buf.size() * sizeof(CT)),
+                       &lengthIndicator);
+        if (r == SQL_SUCCESS || r == SQL_SUCCESS_WITH_INFO) {
+            if (lengthIndicator == SQL_NULL_DATA) {
+                return {};
+            }
+            // starting with ODBC Native Client 2012, SQL_NO_TOTAL is returned
+            // instead of the length (which sometimes was wrong in older versions)
+            // see link for more info: http://msdn.microsoft.com/en-us/library/jj219209.aspx
+            // if length indicator equals SQL_NO_TOTAL, indicating that
+            // more data can be fetched, but size not known, collect data
+            // and fetch next block
+            if (lengthIndicator == SQL_NO_TOTAL) {
+                fieldVal += fromSQLTCHAR<QVarLengthArray<CT>, sizeof(CT)>(buf, buf.size());
+                continue;
+            }
+            // if SQL_SUCCESS_WITH_INFO is returned, indicating that
+            // more data can be fetched, the length indicator does NOT
+            // contain the number of bytes returned - it contains the
+            // total number of bytes that CAN be fetched
+            const qsizetype rSize = (r == SQL_SUCCESS_WITH_INFO)
+                    ? buf.size()
+                    : qsizetype(lengthIndicator / sizeof(CT));
+            fieldVal += fromSQLTCHAR<QVarLengthArray<CT>, sizeof(CT)>(buf, rSize);
+            // lengthIndicator does not contain the termination character
+            if (lengthIndicator < SQLLEN((buf.size() - 1) * sizeof(CT))) {
+                // workaround for Drivermanagers that don't return SQL_NO_DATA
+                break;
+            }
+        } else if (r == SQL_NO_DATA) {
+            break;
+        } else {
+            qSqlWarning("qGetStringData: Error while fetching data:"_L1, hStmt);
+            return {};
+        }
+    }
+    return fieldVal;
+}
 
-    // NB! colSize must be a multiple of 2 for unicode enabled DBs
+static QVariant qGetStringData(SQLHANDLE hStmt, SQLUSMALLINT column, int colSize, bool unicode)
+{
     if (colSize <= 0) {
-        colSize = 256;
+        colSize = 256;  // default Prealloc size of QVarLengthArray
     } else if (colSize > 65536) { // limit buffer size to 64 KB
         colSize = 65536;
     } else {
         colSize++; // make sure there is room for more than the 0 termination
     }
-    if (unicode) {
-        r = SQLGetData(hStmt,
-                        column+1,
-                        SQL_C_TCHAR,
-                        NULL,
-                        0,
-                        &lengthIndicator);
-        if ((r == SQL_SUCCESS || r == SQL_SUCCESS_WITH_INFO) && lengthIndicator > 0)
-            colSize = int(lengthIndicator / sizeof(SQLTCHAR) + 1);
-        QVarLengthArray<SQLTCHAR> buf(colSize);
-        memset(buf.data(), 0, colSize*sizeof(SQLTCHAR));
-        while (true) {
-            r = SQLGetData(hStmt,
-                            column+1,
-                            SQL_C_TCHAR,
-                            (SQLPOINTER)buf.data(),
-                            colSize*sizeof(SQLTCHAR),
-                            &lengthIndicator);
-            if (r == SQL_SUCCESS || r == SQL_SUCCESS_WITH_INFO) {
-                if (lengthIndicator == SQL_NULL_DATA) {
-                    return {};
-                }
-                // starting with ODBC Native Client 2012, SQL_NO_TOTAL is returned
-                // instead of the length (which sometimes was wrong in older versions)
-                // see link for more info: http://msdn.microsoft.com/en-us/library/jj219209.aspx
-                // if length indicator equals SQL_NO_TOTAL, indicating that
-                // more data can be fetched, but size not known, collect data
-                // and fetch next block
-                if (lengthIndicator == SQL_NO_TOTAL) {
-                    fieldVal += fromSQLTCHAR(buf, colSize);
-                    continue;
-                }
-                // if SQL_SUCCESS_WITH_INFO is returned, indicating that
-                // more data can be fetched, the length indicator does NOT
-                // contain the number of bytes returned - it contains the
-                // total number of bytes that CAN be fetched
-                int rSize = (r == SQL_SUCCESS_WITH_INFO) ? colSize : int(lengthIndicator / sizeof(SQLTCHAR));
-                    fieldVal += fromSQLTCHAR(buf, rSize);
-                if (lengthIndicator < SQLLEN(colSize*sizeof(SQLTCHAR))) {
-                    // workaround for Drivermanagers that don't return SQL_NO_DATA
-                    break;
-                }
-            } else if (r == SQL_NO_DATA) {
-                break;
-            } else {
-                qWarning() << "qGetStringData: Error while fetching data (" << qWarnODBCHandle(SQL_HANDLE_STMT, hStmt) << ')';
-                return {};
-            }
-        }
-    } else {
-        r = SQLGetData(hStmt,
-                        column+1,
-                        SQL_C_CHAR,
-                        NULL,
-                        0,
-                        &lengthIndicator);
-        if ((r == SQL_SUCCESS || r == SQL_SUCCESS_WITH_INFO) && lengthIndicator > 0)
-            colSize = lengthIndicator + 1;
-        QVarLengthArray<SQLCHAR> buf(colSize);
-        while (true) {
-            r = SQLGetData(hStmt,
-                            column+1,
-                            SQL_C_CHAR,
-                            (SQLPOINTER)buf.data(),
-                            colSize,
-                            &lengthIndicator);
-            if (r == SQL_SUCCESS || r == SQL_SUCCESS_WITH_INFO) {
-                if (lengthIndicator == SQL_NULL_DATA || lengthIndicator == SQL_NO_TOTAL) {
-                  return {};
-                }
-                // if SQL_SUCCESS_WITH_INFO is returned, indicating that
-                // more data can be fetched, the length indicator does NOT
-                // contain the number of bytes returned - it contains the
-                // total number of bytes that CAN be fetched
-                qsizetype rSize = (r == SQL_SUCCESS_WITH_INFO) ? colSize : lengthIndicator;
-                // Remove any trailing \0 as some drivers misguidedly append one
-                int realsize = qMin(rSize, buf.size());
-                if (realsize > 0 && buf[realsize - 1] == 0)
-                    realsize--;
-                fieldVal += QString::fromUtf8(reinterpret_cast<const char *>(buf.constData()), realsize);
-                if (lengthIndicator < SQLLEN(colSize)) {
-                    // workaround for Drivermanagers that don't return SQL_NO_DATA
-                    break;
-                }
-            } else if (r == SQL_NO_DATA) {
-                break;
-            } else {
-                qWarning() << "qGetStringData: Error while fetching data (" << qWarnODBCHandle(SQL_HANDLE_STMT, hStmt) << ')';
-                return {};
-            }
-        }
-    }
-    return fieldVal;
+    return unicode ? getStringDataImpl<SQLTCHAR>(hStmt, column, colSize, SQL_C_TCHAR)
+                   : getStringDataImpl<SQLCHAR>(hStmt, column, colSize, SQL_C_CHAR);
 }
 
 static QVariant qGetBinaryData(SQLHANDLE hStmt, int column)
@@ -511,12 +446,11 @@ static QVariant qGetBinaryData(SQLHANDLE hStmt, int column)
     SQLLEN lengthIndicator = 0;
     SQLRETURN r = SQL_ERROR;
 
-    QVarLengthArray<SQLTCHAR> colName(COLNAMESIZE);
+    QVarLengthArray<SQLTCHAR, COLNAMESIZE> colName(COLNAMESIZE);
 
     r = SQLDescribeCol(hStmt,
                        column + 1,
-                       colName.data(),
-                       COLNAMESIZE,
+                       colName.data(), SQLSMALLINT(colName.size()),
                        &colNameLen,
                        &colType,
                        &colSize,
@@ -672,12 +606,11 @@ static QSqlField qMakeFieldInfo(const SQLHANDLE hStmt, int i, QString *errorMess
     SQLSMALLINT colScale;
     SQLSMALLINT nullable;
     SQLRETURN r = SQL_ERROR;
-    QVarLengthArray<SQLTCHAR> colName(COLNAMESIZE);
+    QVarLengthArray<SQLTCHAR, COLNAMESIZE> colName(COLNAMESIZE);
     errorMessage->clear();
     r = SQLDescribeCol(hStmt,
                         i+1,
-                        colName.data(),
-                        (SQLSMALLINT)COLNAMESIZE,
+                        colName.data(), SQLSMALLINT(colName.size()),
                         &colNameLen,
                         &colType,
                         &colSize,
@@ -715,7 +648,7 @@ static QSqlField qMakeFieldInfo(const SQLHANDLE hStmt, int i, QString *errorMess
         f.setRequired(false);
     // else we don't know
     f.setAutoValue(isAutoValue(hStmt, i));
-    QVarLengthArray<SQLTCHAR> tableName(TABLENAMESIZE);
+    QVarLengthArray<SQLTCHAR, TABLENAMESIZE> tableName(TABLENAMESIZE);
     SQLSMALLINT tableNameLen;
     r = SQLColAttribute(hStmt,
                         i + 1,
@@ -863,38 +796,31 @@ bool QODBCDriverPrivate::setConnectionOptions(const QString& connOpts)
     return true;
 }
 
-void QODBCDriverPrivate::splitTableQualifier(const QString & qualifier, QString &catalog,
-                                       QString &schema, QString &table)
+void QODBCDriverPrivate::splitTableQualifier(const QString &qualifier, QString &catalog,
+                                             QString &schema, QString &table) const
 {
     if (!useSchema) {
         table = qualifier;
         return;
     }
-    QStringList l = qualifier.split(u'.');
-    if (l.count() > 3)
-        return; // can't possibly be a valid table qualifier
-    int i = 0, n = l.count();
-    if (n == 1) {
-        table = qualifier;
-    } else {
-        for (QStringList::Iterator it = l.begin(); it != l.end(); ++it) {
-            if (n == 3) {
-                if (i == 0) {
-                    catalog = *it;
-                } else if (i == 1) {
-                    schema = *it;
-                } else if (i == 2) {
-                    table = *it;
-                }
-            } else if (n == 2) {
-                if (i == 0) {
-                    schema = *it;
-                } else if (i == 1) {
-                    table = *it;
-                }
-            }
-            i++;
-        }
+    const QList<QStringView> l = QStringView(qualifier).split(u'.');
+    switch (l.count()) {
+        case 1:
+            table = qualifier;
+            break;
+        case 2:
+            schema = l.at(0).toString();
+            table = l.at(1).toString();
+            break;
+        case 3:
+            catalog = l.at(0).toString();
+            schema = l.at(1).toString();
+            table = l.at(2).toString();
+            break;
+        default:
+            qSqlWarning(QString::fromLatin1("QODBCDriver::splitTableQualifier: Unable to split table qualifier '%1'")
+                        .arg(qualifier), this);
+            break;
     }
 }
 
@@ -1037,7 +963,7 @@ bool QODBCResult::reset (const QString& query)
     SQLNumResultCols(d->hStmt, &count);
     if (count) {
         setSelect(true);
-        for (int i = 0; i < count; ++i) {
+        for (SQLSMALLINT i = 0; i < count; ++i) {
             d->rInf.append(qMakeFieldInfo(d, i));
         }
         d->fieldCache.resize(count);
@@ -1404,13 +1330,11 @@ bool QODBCResult::exec()
 
     QVariantList &values = boundValues();
     QByteArrayList tmpStorage(values.count(), QByteArray()); // targets for SQLBindParameter()
-    QVarLengthArray<SQLLEN, 32> indicators(values.count());
-    memset(indicators.data(), 0, indicators.size() * sizeof(SQLLEN));
+    QVarLengthArray<SQLLEN, 32> indicators(values.count(), 0);
 
     // bind parameters - only positional binding allowed
-    int i;
     SQLRETURN r;
-    for (i = 0; i < values.count(); ++i) {
+    for (qsizetype i = 0; i < values.count(); ++i) {
         if (bindValueType(i) & QSql::Out)
             values[i].detach();
         const QVariant &val = values.at(i);
@@ -1690,7 +1614,7 @@ bool QODBCResult::exec()
                 break; }
         }
         if (r != SQL_SUCCESS) {
-            qWarning() << "QODBCResult::exec: unable to bind variable:" << qODBCWarn(d);
+            qSqlWarning("QODBCResult::exec: unable to bind variable:"_L1, d);
             setLastError(qMakeError(QCoreApplication::translate("QODBCResult",
                          "Unable to bind variable"), QSqlError::StatementError, d));
             return false;
@@ -1698,7 +1622,7 @@ bool QODBCResult::exec()
     }
     r = SQLExecute(d->hStmt);
     if (r != SQL_SUCCESS && r != SQL_SUCCESS_WITH_INFO && r != SQL_NO_DATA) {
-        qWarning() << "QODBCResult::exec: Unable to execute statement:" << qODBCWarn(d);
+        qSqlWarning("QODBCResult::exec: Unable to execute statement:"_L1, d);
         setLastError(qMakeError(QCoreApplication::translate("QODBCResult",
                      "Unable to execute statement"), QSqlError::StatementError, d));
         return false;
@@ -1713,7 +1637,7 @@ bool QODBCResult::exec()
     SQLNumResultCols(d->hStmt, &count);
     if (count) {
         setSelect(true);
-        for (int i = 0; i < count; ++i) {
+        for (SQLSMALLINT i = 0; i < count; ++i) {
             d->rInf.append(qMakeFieldInfo(d, i));
         }
         d->fieldCache.resize(count);
@@ -1727,7 +1651,7 @@ bool QODBCResult::exec()
     if (!hasOutValues())
         return true;
 
-    for (i = 0; i < values.count(); ++i) {
+    for (qsizetype i = 0; i < values.count(); ++i) {
         switch (values.at(i).typeId()) {
             case QMetaType::QDate: {
                 DATE_STRUCT ds = *((DATE_STRUCT *)const_cast<char *>(tmpStorage.at(i).constData()));
@@ -1838,8 +1762,7 @@ bool QODBCResult::nextResult()
     SQLRETURN r = SQLMoreResults(d->hStmt);
     if (r != SQL_SUCCESS) {
         if (r == SQL_SUCCESS_WITH_INFO) {
-            int nativeCode = -1;
-            QString message = qODBCWarn(d, &nativeCode);
+            QString message = errorStringFromDiagRecords(qODBCWarn(d));
             qWarning() << "QODBCResult::nextResult():" << message;
         } else {
             if (r != SQL_NO_DATA)
@@ -1853,7 +1776,7 @@ bool QODBCResult::nextResult()
     SQLNumResultCols(d->hStmt, &count);
     if (count) {
         setSelect(true);
-        for (int i = 0; i < count; ++i) {
+        for (SQLSMALLINT i = 0; i < count; ++i) {
             d->rInf.append(qMakeFieldInfo(d, i));
         }
         d->fieldCache.resize(count);
@@ -2007,15 +1930,13 @@ bool QODBCDriver::open(const QString & db,
         connQStr += ";PWD="_L1 + password;
 
     SQLSMALLINT cb;
-    QVarLengthArray<SQLTCHAR> connOut(1024);
-    memset(connOut.data(), 0, connOut.size() * sizeof(SQLTCHAR));
+    QVarLengthArray<SQLTCHAR, 1024> connOut(1024);
     {
         auto encoded = toSQLTCHAR(connQStr);
         r = SQLDriverConnect(d->hDbc,
                              nullptr,
                              encoded.data(), SQLSMALLINT(encoded.size()),
-                             connOut.data(),
-                             1024,
+                             connOut.data(), SQLSMALLINT(connOut.size()),
                              &cb,
                              /*SQL_DRIVER_NOPROMPT*/0);
     }
@@ -2144,7 +2065,7 @@ void QODBCDriverPrivate::checkUnicode()
     if (r == SQL_SUCCESS) {
         r = SQLFetch(hStmt);
         if (r == SQL_SUCCESS) {
-            QVarLengthArray<SQLWCHAR> buffer(10);
+            QVarLengthArray<SQLWCHAR, 10> buffer(10);
             r = SQLGetData(hStmt, 1, SQL_C_WCHAR, buffer.data(), buffer.size() * sizeof(SQLWCHAR), NULL);
             if (r == SQL_SUCCESS && fromSQLTCHAR(buffer) == "test"_L1) {
                 unicode = true;
@@ -2157,48 +2078,49 @@ void QODBCDriverPrivate::checkUnicode()
 bool QODBCDriverPrivate::checkDriver() const
 {
 #ifdef ODBC_CHECK_DRIVER
-    static const SQLUSMALLINT reqFunc[] = {
+    static constexpr SQLUSMALLINT reqFunc[] = {
                 SQL_API_SQLDESCRIBECOL, SQL_API_SQLGETDATA, SQL_API_SQLCOLUMNS,
                 SQL_API_SQLGETSTMTATTR, SQL_API_SQLGETDIAGREC, SQL_API_SQLEXECDIRECT,
-                SQL_API_SQLGETINFO, SQL_API_SQLTABLES, 0
+                SQL_API_SQLGETINFO, SQL_API_SQLTABLES
     };
 
     // these functions are optional
-    static const SQLUSMALLINT optFunc[] = {
-        SQL_API_SQLNUMRESULTCOLS, SQL_API_SQLROWCOUNT, 0
+    static constexpr SQLUSMALLINT optFunc[] = {
+        SQL_API_SQLNUMRESULTCOLS, SQL_API_SQLROWCOUNT
     };
 
     SQLRETURN r;
     SQLUSMALLINT sup;
 
-    int i;
     // check the required functions
-    for (i = 0; reqFunc[i] != 0; ++i) {
+    for (const SQLUSMALLINT func : reqFunc) {
 
-        r = SQLGetFunctions(hDbc, reqFunc[i], &sup);
+        r = SQLGetFunctions(hDbc, func, &sup);
 
         if (r != SQL_SUCCESS) {
             qSqlWarning("QODBCDriver::checkDriver: Cannot get list of supported functions"_L1, this);
             return false;
         }
         if (sup == SQL_FALSE) {
-            qWarning () << "QODBCDriver::open: Warning - Driver doesn't support all needed functionality (" << reqFunc[i] <<
-                    ").\nPlease look at the Qt SQL Module Driver documentation for more information.";
+            qWarning () << "QODBCDriver::open: Warning - Driver doesn't support all needed functionality ("
+                        << func
+                        << ").\nPlease look at the Qt SQL Module Driver documentation for more information.";
             return false;
         }
     }
 
     // these functions are optional and just generate a warning
-    for (i = 0; optFunc[i] != 0; ++i) {
+    for (const SQLUSMALLINT func : optFunc) {
 
-        r = SQLGetFunctions(hDbc, optFunc[i], &sup);
+        r = SQLGetFunctions(hDbc, func, &sup);
 
         if (r != SQL_SUCCESS) {
             qSqlWarning("QODBCDriver::checkDriver: Cannot get list of supported functions"_L1, this);
             return false;
         }
         if (sup == SQL_FALSE) {
-            qWarning() << "QODBCDriver::checkDriver: Warning - Driver doesn't support some non-critical functions (" << optFunc[i] << ')';
+            qWarning() << "QODBCDriver::checkDriver: Warning - Driver doesn't support some non-critical functions ("
+                       << func << ')';
             return true;
         }
     }
@@ -2224,9 +2146,8 @@ void QODBCDriverPrivate::checkSchemaUsage()
 void QODBCDriverPrivate::checkDBMS()
 {
     SQLRETURN   r;
-    QVarLengthArray<SQLTCHAR> serverString(200);
+    QVarLengthArray<SQLTCHAR, 200> serverString(200);
     SQLSMALLINT t;
-    memset(serverString.data(), 0, serverString.size() * sizeof(SQLTCHAR));
 
     r = SQLGetInfo(hDbc,
                    SQL_DBMS_NAME,
@@ -2270,7 +2191,7 @@ void QODBCDriverPrivate::checkHasSQLFetchScroll()
 
 void QODBCDriverPrivate::checkHasMultiResults()
 {
-    QVarLengthArray<SQLTCHAR> driverResponse(2);
+    QVarLengthArray<SQLTCHAR, 2> driverResponse(2);
     SQLSMALLINT length;
     SQLRETURN r = SQLGetInfo(hDbc,
                              SQL_MULT_RESULT_SETS,
@@ -2278,7 +2199,7 @@ void QODBCDriverPrivate::checkHasMultiResults()
                              SQLSMALLINT(driverResponse.size() * sizeof(SQLTCHAR)),
                              &length);
     if (r == SQL_SUCCESS || r == SQL_SUCCESS_WITH_INFO)
-        hasMultiResultSets = fromSQLTCHAR(driverResponse, length/sizeof(SQLTCHAR)).startsWith(u'Y');
+        hasMultiResultSets = fromSQLTCHAR(driverResponse, length / sizeof(SQLTCHAR)).startsWith(u'Y');
 }
 
 void QODBCDriverPrivate::checkDateTimePrecision()
@@ -2430,7 +2351,9 @@ QStringList QODBCDriver::tables(QSql::TableType type) const
         r = SQLFetch(hStmt);
 
     if (r != SQL_SUCCESS && r != SQL_SUCCESS_WITH_INFO && r != SQL_NO_DATA) {
-        qWarning() << "QODBCDriver::tables failed to retrieve table/view list: (" << r << "," << qWarnODBCHandle(SQL_HANDLE_STMT, hStmt) << ")";
+        qSqlWarning("QODBCDriver::tables failed to retrieve table/view list: ("_L1
+                            + QString::number(r) + u':',
+                    hStmt);
         return QStringList();
     }
 
@@ -2469,7 +2392,7 @@ QSqlIndex QODBCDriver::primaryIndex(const QString& tablename) const
         return index;
     }
     QString catalog, schema, table;
-    const_cast<QODBCDriverPrivate*>(d)->splitTableQualifier(tablename, catalog, schema, table);
+    d->splitTableQualifier(tablename, catalog, schema, table);
 
     if (isIdentifierEscaped(catalog, QSqlDriver::TableName))
         catalog = stripDelimiters(catalog, QSqlDriver::TableName);
@@ -2566,7 +2489,7 @@ QSqlRecord QODBCDriver::record(const QString& tablename) const
 
     SQLHANDLE hStmt;
     QString catalog, schema, table;
-    const_cast<QODBCDriverPrivate*>(d)->splitTableQualifier(tablename, catalog, schema, table);
+    d->splitTableQualifier(tablename, catalog, schema, table);
 
     if (isIdentifierEscaped(catalog, QSqlDriver::TableName))
         catalog = stripDelimiters(catalog, QSqlDriver::TableName);
@@ -2658,15 +2581,14 @@ QString QODBCDriver::formatValue(const QSqlField &field,
         } else
             r = "NULL"_L1;
     } else if (field.metaType().id() == QMetaType::QByteArray) {
-        QByteArray ba = field.value().toByteArray();
-        QString res;
-        static const char hexchars[] = "0123456789abcdef";
-        for (int i = 0; i < ba.size(); ++i) {
-            uchar s = (uchar) ba[i];
-            res += QLatin1Char(hexchars[s >> 4]);
-            res += QLatin1Char(hexchars[s & 0x0f]);
+        const QByteArray ba = field.value().toByteArray();
+        r.reserve((ba.size() + 1) * 2);
+        r = "0x"_L1;
+        for (const char c : ba) {
+            const uchar s = uchar(c);
+            r += QLatin1Char(QtMiscUtils::toHexLower(s >> 4));
+            r += QLatin1Char(QtMiscUtils::toHexLower(s & 0x0f));
         }
-        r = "0x"_L1 + res;
     } else {
         r = QSqlDriver::formatValue(field, trimStrings);
     }
@@ -2685,9 +2607,10 @@ QString QODBCDriver::escapeIdentifier(const QString &identifier, IdentifierType)
     QChar quote = const_cast<QODBCDriverPrivate*>(d)->quoteChar();
     QString res = identifier;
     if (!identifier.isEmpty() && !identifier.startsWith(quote) && !identifier.endsWith(quote) ) {
-        res.replace(quote, QString(quote)+QString(quote));
-        res.prepend(quote).append(quote);
-        res.replace(u'.', QString(quote) + u'.' +QString(quote));
+        const QString quoteStr(quote);
+        res.replace(quote, quoteStr + quoteStr);
+        res.replace(u'.', quoteStr + u'.' + quoteStr);
+        res = quote + res + quote;
     }
     return res;
 }
diff --git a/src/plugins/sqldrivers/psql/qsql_psql.cpp b/src/plugins/sqldrivers/psql/qsql_psql.cpp
index 1ace0db6..2b985ee2 100644
--- a/src/plugins/sqldrivers/psql/qsql_psql.cpp
+++ b/src/plugins/sqldrivers/psql/qsql_psql.cpp
@@ -125,7 +125,6 @@ public:
     int stmtCount = 0;
     mutable bool pendingNotifyCheck = false;
     bool hasBackslashEscape = false;
-    bool isUtf8 = false;
 
     void appendTables(QStringList &tl, QSqlQuery &t, QChar type);
     PGresult *exec(const char *stmt);
@@ -175,7 +174,7 @@ PGresult *QPSQLDriverPrivate::exec(const char *stmt)
 
 PGresult *QPSQLDriverPrivate::exec(const QString &stmt)
 {
-    return exec((isUtf8 ? stmt.toUtf8() : stmt.toLocal8Bit()).constData());
+    return exec(stmt.toUtf8().constData());
 }
 
 StatementId QPSQLDriverPrivate::sendQuery(const QString &stmt)
@@ -183,8 +182,7 @@ StatementId QPSQLDriverPrivate::sendQuery(const QString &stmt)
     // Discard any prior query results that the application didn't eat.
     // This is required for PQsendQuery()
     discardResults();
-    const int result = PQsendQuery(connection,
-                                   (isUtf8 ? stmt.toUtf8() : stmt.toLocal8Bit()).constData());
+    const int result = PQsendQuery(connection, stmt.toUtf8().constData());
     currentStmtId = result ? generateStatementId() : InvalidStatementId;
     return currentStmtId;
 }
@@ -256,7 +254,7 @@ public:
     Q_DECLARE_SQLDRIVER_PRIVATE(QPSQLDriver)
     using QSqlResultPrivate::QSqlResultPrivate;
 
-    QString fieldSerial(int i) const override { return u'$' + QString::number(i + 1); }
+    QString fieldSerial(qsizetype i) const override { return u'$' + QString::number(i + 1); }
     void deallocatePreparedStmt();
 
     std::queue<PGresult*> nextResultSets;
@@ -274,7 +272,7 @@ static QSqlError qMakeError(const QString &err, QSqlError::ErrorType type,
                             const QPSQLDriverPrivate *p, PGresult *result = nullptr)
 {
     const char *s = PQerrorMessage(p->connection);
-    QString msg = p->isUtf8 ? QString::fromUtf8(s) : QString::fromLocal8Bit(s);
+    QString msg = QString::fromUtf8(s);
     QString errorCode;
     if (result) {
         errorCode = QString::fromLatin1(PQresultErrorField(result, PG_DIAG_SQLSTATE));
@@ -382,8 +380,10 @@ void QPSQLResultPrivate::deallocatePreparedStmt()
         const QString stmt = QStringLiteral("DEALLOCATE ") + preparedStmtId;
         PGresult *result = drv_d_func()->exec(stmt);
 
-        if (PQresultStatus(result) != PGRES_COMMAND_OK)
-            qWarning("Unable to free statement: %s", PQerrorMessage(drv_d_func()->connection));
+        if (PQresultStatus(result) != PGRES_COMMAND_OK) {
+            const QString msg = QString::fromUtf8(PQerrorMessage(drv_d_func()->connection));
+            qWarning("Unable to free statement: %ls", qUtf16Printable(msg));
+        }
         PQclear(result);
     }
     preparedStmtId.clear();
@@ -606,7 +606,7 @@ QVariant QPSQLResult::data(int i)
     case QMetaType::Bool:
         return QVariant((bool)(val[0] == 't'));
     case QMetaType::QString:
-        return d->drv_d_func()->isUtf8 ? QString::fromUtf8(val) : QString::fromLatin1(val);
+        return QString::fromUtf8(val);
     case QMetaType::LongLong:
         if (val[0] == '-')
             return QByteArray::fromRawData(val, qstrlen(val)).toLongLong();
@@ -747,10 +747,7 @@ QSqlRecord QPSQLResult::record() const
     int count = PQnfields(d->result);
     QSqlField f;
     for (int i = 0; i < count; ++i) {
-        if (d->drv_d_func()->isUtf8)
-            f.setName(QString::fromUtf8(PQfname(d->result, i)));
-        else
-            f.setName(QString::fromLocal8Bit(PQfname(d->result, i)));
+        f.setName(QString::fromUtf8(PQfname(d->result, i)));
         const int tableOid = PQftable(d->result, i);
         // WARNING: We cannot execute any other SQL queries on
         // the same db connection while forward-only mode is active
@@ -918,7 +915,7 @@ void QPSQLDriverPrivate::setDatestyle()
     PGresult *result = exec("SET DATESTYLE TO 'ISO'");
     int status =  PQresultStatus(result);
     if (status != PGRES_COMMAND_OK)
-        qWarning("%s", PQerrorMessage(connection));
+        qWarning() << QString::fromUtf8(PQerrorMessage(connection));
     PQclear(result);
 }
 
@@ -931,7 +928,7 @@ void QPSQLDriverPrivate::setByteaOutput()
         PGresult *result = exec("SET bytea_output TO escape");
         int status = PQresultStatus(result);
         if (status != PGRES_COMMAND_OK)
-            qWarning("%s", PQerrorMessage(connection));
+            qWarning() << QString::fromUtf8(PQerrorMessage(connection));
         PQclear(result);
     }
 }
@@ -1125,6 +1122,7 @@ bool QPSQLDriver::hasFeature(DriverFeature f) const
     case EventNotifications:
     case MultipleResultSets:
     case BLOB:
+    case Unicode:
         return true;
     case PreparedQueries:
     case PositionalPlaceholders:
@@ -1135,8 +1133,6 @@ bool QPSQLDriver::hasFeature(DriverFeature f) const
     case FinishQuery:
     case CancelQuery:
         return false;
-    case Unicode:
-        return d->isUtf8;
     }
     return false;
 }
@@ -1194,7 +1190,13 @@ bool QPSQLDriver::open(const QString &db,
 
     d->pro = d->getPSQLVersion();
     d->detectBackslashEscape();
-    d->isUtf8 = d->setEncodingUtf8();
+    if (!d->setEncodingUtf8()) {
+        setLastError(qMakeError(tr("Unable to set client encoding to 'UNICODE'"), QSqlError::ConnectionError, d));
+        setOpenError(true);
+        PQfinish(d->connection);
+        d->connection = nullptr;
+        return false;
+    }
     d->setDatestyle();
     d->setByteaOutput();
 
@@ -1516,8 +1518,8 @@ QString QPSQLDriver::escapeIdentifier(const QString &identifier, IdentifierType)
     QString res = identifier;
     if (!identifier.isEmpty() && !identifier.startsWith(u'"') && !identifier.endsWith(u'"') ) {
         res.replace(u'"', "\"\""_L1);
-        res.prepend(u'"').append(u'"');
         res.replace(u'.', "\".\""_L1);
+        res = u'"' + res + u'"';
     }
     return res;
 }
@@ -1583,8 +1585,8 @@ bool QPSQLDriver::unsubscribeFromNotification(const QString &name)
     }
 
     if (!d->seid.contains(name)) {
-        qWarning("QPSQLDriver::unsubscribeFromNotificationImplementation: not subscribed to '%s'.",
-            qPrintable(name));
+        qWarning("QPSQLDriver::unsubscribeFromNotificationImplementation: not subscribed to '%ls'.",
+            qUtf16Printable(name));
         return false;
     }
 
@@ -1627,14 +1629,14 @@ void QPSQLDriver::_q_handleNotification()
             QString payload;
 #if defined PG_VERSION_NUM && PG_VERSION_NUM-0 >= 70400
             if (notify->extra)
-                payload = d->isUtf8 ? QString::fromUtf8(notify->extra) : QString::fromLatin1(notify->extra);
+                payload = QString::fromUtf8(notify->extra);
 #endif
             QSqlDriver::NotificationSource source = (notify->be_pid == PQbackendPID(d->connection)) ? QSqlDriver::SelfSource : QSqlDriver::OtherSource;
             emit notification(name, source, payload);
         }
         else
-            qWarning("QPSQLDriver: received notification for '%s' which isn't subscribed to.",
-                    qPrintable(name));
+            qWarning("QPSQLDriver: received notification for '%ls' which isn't subscribed to.",
+                    qUtf16Printable(name));
 
         qPQfreemem(notify);
     }
diff --git a/src/plugins/sqldrivers/qt_cmdline.cmake b/src/plugins/sqldrivers/qt_cmdline.cmake
index 8116a5cd..945de0e6 100644
--- a/src/plugins/sqldrivers/qt_cmdline.cmake
+++ b/src/plugins/sqldrivers/qt_cmdline.cmake
@@ -11,6 +11,7 @@ qt_commandline_option(sql-oci TYPE boolean)
 qt_commandline_option(sql-odbc TYPE boolean)
 qt_commandline_option(sql-psql TYPE boolean)
 qt_commandline_option(sql-sqlite TYPE boolean)
+qt_commandline_option(sql-mimer TYPE boolean)
 qt_commandline_option(plugin-sql-db2 TYPE void NAME sql-db2)
 qt_commandline_option(plugin-sql-ibase TYPE void NAME sql-ibase)
 qt_commandline_option(plugin-sql-mysql TYPE void NAME sql-mysql)
@@ -18,3 +19,4 @@ qt_commandline_option(plugin-sql-oci TYPE void NAME sql-oci)
 qt_commandline_option(plugin-sql-odbc TYPE void NAME sql-odbc)
 qt_commandline_option(plugin-sql-psql TYPE void NAME sql-psql)
 qt_commandline_option(plugin-sql-sqlite TYPE void NAME sql-sqlite)
+qt_commandline_option(plugin-sql-mimer TYPE void NAME sql-mimer)
diff --git a/src/plugins/sqldrivers/sqlite/qsql_sqlite.cpp b/src/plugins/sqldrivers/sqlite/qsql_sqlite.cpp
index 6812adda..60661e68 100644
--- a/src/plugins/sqldrivers/sqlite/qsql_sqlite.cpp
+++ b/src/plugins/sqldrivers/sqlite/qsql_sqlite.cpp
@@ -49,9 +49,9 @@ static QString _q_escapeIdentifier(const QString &identifier, QSqlDriver::Identi
         return res;
     if (!identifier.isEmpty() && !identifier.startsWith(u'"') && !identifier.endsWith(u'"')) {
         res.replace(u'"', "\"\""_L1);
-        res.prepend(u'"').append(u'"');
         if (type == QSqlDriver::TableName)
             res.replace(u'.', "\".\""_L1);
+        res = u'"' + res + u'"';
     }
     return res;
 }
@@ -984,7 +984,7 @@ bool QSQLiteDriver::subscribeToNotification(const QString &name)
     }
 
     if (d->notificationid.contains(name)) {
-        qWarning("Already subscribing to '%s'.", qPrintable(name));
+        qWarning("Already subscribing to '%ls'.", qUtf16Printable(name));
         return false;
     }
 
@@ -1005,7 +1005,7 @@ bool QSQLiteDriver::unsubscribeFromNotification(const QString &name)
     }
 
     if (!d->notificationid.contains(name)) {
-        qWarning("Not subscribed to '%s'.", qPrintable(name));
+        qWarning("Not subscribed to '%ls'.", qUtf16Printable(name));
         return false;
     }
 
diff --git a/src/plugins/styles/mac/qmacstyle_mac.mm b/src/plugins/styles/mac/qmacstyle_mac.mm
index 8d036729..2bab19d6 100644
--- a/src/plugins/styles/mac/qmacstyle_mac.mm
+++ b/src/plugins/styles/mac/qmacstyle_mac.mm
@@ -3902,6 +3902,7 @@ void QMacStyle::drawControl(ControlElement ce, const QStyleOption *opt, QPainter
                     frameRect = frameRect.adjusted(-1, 0, 1, 0);
                 }
                 break;
+            case QStyleOptionTab::Moving: // Moving tab treated like End
             case QStyleOptionTab::End:
                 // Pressed state hack: tweak adjustments in preparation for flip below
                 if (isSelected || tabDirection == QMacStylePrivate::West)
diff --git a/src/plugins/styles/windowsvista/qwindowsvistastyle.cpp b/src/plugins/styles/windowsvista/qwindowsvistastyle.cpp
index 21da466b..dc6cd188 100644
--- a/src/plugins/styles/windowsvista/qwindowsvistastyle.cpp
+++ b/src/plugins/styles/windowsvista/qwindowsvistastyle.cpp
@@ -69,14 +69,6 @@ HTHEME QWindowsVistaStylePrivate::m_themes[NThemes];
 bool QWindowsVistaStylePrivate::useVistaTheme = false;
 Q_CONSTINIT QBasicAtomicInt QWindowsVistaStylePrivate::ref = Q_BASIC_ATOMIC_INITIALIZER(-1); // -1 based refcounting
 
-namespace QOSWorkaround {
-    // Due to a mingw bug being confused by static constexpr variables in an exported class,
-    // we cannot use QOperatingSystemVersion::Windows11 in libraries outside of QtCore.
-    // ### TODO Remove this when that problem is fixed.
-    static constexpr QOperatingSystemVersionBase Windows11 { QOperatingSystemVersionBase::Windows,
-                                                             10, 0, 22000 };
-}
-
 static void qt_add_rect(HRGN &winRegion, QRect r)
 {
     HRGN rgn = CreateRectRgn(r.left(), r.top(), r.x() + r.width(), r.y() + r.height());
@@ -273,11 +265,8 @@ int QWindowsVistaStylePrivate::pixelMetricFromSystemDp(QStyle::PixelMetric pm, c
                 : QWindowsThemeData::themeSize(widget, nullptr, QWindowsVistaStylePrivate::ProgressTheme, PP_CHUNKVERT).height();
     case QStyle::PM_SliderThickness:
         return QWindowsThemeData::themeSize(widget, nullptr, QWindowsVistaStylePrivate::TrackBarTheme, TKP_THUMB).height();
-    case QStyle::PM_TitleBarHeight: {
-        return widget && (widget->windowType() == Qt::Tool)
-                ? GetSystemMetrics(SM_CYSMCAPTION) + GetSystemMetrics(SM_CXSIZEFRAME)
-                : GetSystemMetrics(SM_CYCAPTION) + GetSystemMetrics(SM_CXSIZEFRAME);
-    }
+    case QStyle::PM_TitleBarHeight:
+        return QWindowsStylePrivate::pixelMetricFromSystemDp(QStyle::PM_TitleBarHeight, option, widget);
     case QStyle::PM_MdiSubWindowFrameWidth:
         return QWindowsThemeData::themeSize(widget, nullptr, QWindowsVistaStylePrivate::WindowTheme, WP_FRAMELEFT, FS_ACTIVE).width();
     case QStyle::PM_DockWidgetFrameWidth:
@@ -541,29 +530,29 @@ QRegion QWindowsVistaStylePrivate::region(QWindowsThemeData &themeData)
     QRegion region;
 
     if (success) {
-        const auto numBytes = GetRegionData(dest, 0, nullptr);
-        if (numBytes == 0)
-            return QRegion();
-
-        char *buf = new (std::nothrow) char[numBytes];
-        if (!buf)
-            return QRegion();
-
-        RGNDATA *rd = reinterpret_cast<RGNDATA*>(buf);
-        if (GetRegionData(dest, numBytes, rd) == 0) {
-            delete [] buf;
-            return QRegion();
+        QVarLengthArray<char> buf(256);
+        RGNDATA *rd = reinterpret_cast<RGNDATA *>(buf.data());
+        if (GetRegionData(dest, buf.size(), rd) == 0) {
+            const auto numBytes = GetRegionData(dest, 0, nullptr);
+            if (numBytes > 0) {
+                buf.resize(numBytes);
+                rd = reinterpret_cast<RGNDATA *>(buf.data());
+                if (GetRegionData(dest, numBytes, rd) == 0)
+                    rd = nullptr;
+            } else {
+                rd = nullptr;
+            }
         }
-
-        RECT *r = reinterpret_cast<RECT*>(rd->Buffer);
-        for (uint i = 0; i < rd->rdh.nCount; ++i) {
-            QRect rect;
-            rect.setCoords(int(r->left * factor), int(r->top * factor), int((r->right - 1) * factor), int((r->bottom - 1) * factor));
-            ++r;
-            region |= rect;
+        if (rd) {
+            RECT *r = reinterpret_cast<RECT *>(rd->Buffer);
+            for (uint i = 0; i < rd->rdh.nCount; ++i) {
+                QRect rect;
+                rect.setCoords(int(r->left * factor), int(r->top * factor),
+                               int((r->right - 1) * factor), int((r->bottom - 1) * factor));
+                ++r;
+                region |= rect;
+            }
         }
-
-        delete [] buf;
     }
 
     DeleteObject(hRgn);
@@ -2968,7 +2957,7 @@ void QWindowsVistaStyle::drawControl(ControlElement element, const QStyleOption
                     else
                         theme.stateId = bullet ? MC_BULLETNORMAL: MC_CHECKMARKNORMAL;
                     d->drawBackground(theme);
-                } else if (QOperatingSystemVersion::current() >= QOSWorkaround::Windows11
+                } else if (QOperatingSystemVersion::current() >= QOperatingSystemVersion::Windows11
                            && !act) {
                     painter->fillRect(checkRect, menuitem->palette.highlight().color().lighter(200));
                 }
@@ -3053,7 +3042,7 @@ void QWindowsVistaStyle::drawControl(ControlElement element, const QStyleOption
                             partId, stateId, option->rect);
             d->drawBackground(theme);
         }
-        return;    
+        return;
 
     case CE_MenuBarEmptyArea: {
         stateId = MBI_NORMAL;
@@ -4824,7 +4813,7 @@ void QWindowsVistaStyle::polish(QPalette &pal)
         // Overwrite with the light system palette.
         using QWindowsApplication = QNativeInterface::Private::QWindowsApplication;
         if (auto nativeWindowsApp = dynamic_cast<QWindowsApplication *>(QGuiApplicationPrivate::platformIntegration()))
-            nativeWindowsApp->lightSystemPalette(pal);
+            nativeWindowsApp->populateLightSystemPalette(pal);
     }
 
     QPixmapCache::clear();
diff --git a/src/plugins/tls/openssl/qdtls_openssl.cpp b/src/plugins/tls/openssl/qdtls_openssl.cpp
index c3258d1e..fc07a29e 100644
--- a/src/plugins/tls/openssl/qdtls_openssl.cpp
+++ b/src/plugins/tls/openssl/qdtls_openssl.cpp
@@ -178,7 +178,7 @@ extern "C" int q_generate_cookie_callback(SSL *ssl, unsigned char *dst,
 
     QMessageAuthenticationCode hmac(dtls->hashAlgorithm, dtls->secret);
     hmac.addData(peerData);
-    const QByteArray cookie = hmac.result();
+    const QByteArrayView cookie = hmac.resultView();
     Q_ASSERT(cookie.size() >= 0);
     // DTLS1_COOKIE_LENGTH is erroneously 256 bytes long, must be 255 - RFC 6347, 4.2.1.
     *cookieLength = qMin(DTLS1_COOKIE_LENGTH - 1, cookie.size());
@@ -201,7 +201,7 @@ extern "C" int q_verify_cookie_callback(SSL *ssl, const unsigned char *cookie,
         return 0;
 
     return newCookieLength == cookieLength
-           && !std::memcmp(cookie, newCookie, cookieLength);
+           && !q_CRYPTO_memcmp(cookie, newCookie, size_t(cookieLength));
 }
 
 extern "C" int q_X509DtlsCallback(int ok, X509_STORE_CTX *ctx)
diff --git a/src/plugins/tls/openssl/qssldiffiehellmanparameters_openssl.cpp b/src/plugins/tls/openssl/qssldiffiehellmanparameters_openssl.cpp
index 49e583b0..16e31e60 100644
--- a/src/plugins/tls/openssl/qssldiffiehellmanparameters_openssl.cpp
+++ b/src/plugins/tls/openssl/qssldiffiehellmanparameters_openssl.cpp
@@ -139,7 +139,7 @@ int QTlsBackendOpenSSL::dhParametersFromPem(const QByteArray &pem, QByteArray *d
             const int len = q_i2d_DHparams(dh, reinterpret_cast<unsigned char **>(&buf));
             const auto freeBuf = qScopeGuard([&] { q_OPENSSL_free(buf); });
             if (len > 0)
-                *data = QByteArray(buf, len);
+                data->assign({buf, len});
             else
                 return DHParams::InvalidInputDataError;
         } else {
diff --git a/src/plugins/tls/openssl/qsslsocket_openssl_symbols.cpp b/src/plugins/tls/openssl/qsslsocket_openssl_symbols.cpp
index 00a39d52..373f38a3 100644
--- a/src/plugins/tls/openssl/qsslsocket_openssl_symbols.cpp
+++ b/src/plugins/tls/openssl/qsslsocket_openssl_symbols.cpp
@@ -155,6 +155,7 @@ DEFINEFUNC3(int, X509_STORE_set_ex_data, X509_STORE *a, a, int idx, idx, void *d
 DEFINEFUNC2(void *, X509_STORE_get_ex_data, X509_STORE *r, r, int idx, idx, return nullptr, return)
 DEFINEFUNC(STACK_OF(X509) *, X509_STORE_CTX_get0_chain, X509_STORE_CTX *a, a, return nullptr, return)
 DEFINEFUNC3(void, CRYPTO_free, void *str, str, const char *file, file, int line, line, return, DUMMYARG)
+DEFINEFUNC3(int, CRYPTO_memcmp, const void * in_a, in_a, const void * in_b, in_b, size_t len, len, return 1, return);
 DEFINEFUNC(long, OpenSSL_version_num, void, DUMMYARG, return 0, return)
 DEFINEFUNC(const char *, OpenSSL_version, int a, a, return nullptr, return)
 DEFINEFUNC(unsigned long, SSL_SESSION_get_ticket_lifetime_hint, const SSL_SESSION *session, session, return 0, return)
@@ -895,6 +896,7 @@ bool q_resolveOpenSslSymbols()
         RESOLVEFUNC(X509_STORE_set_ex_data)
         RESOLVEFUNC(X509_STORE_get_ex_data)
         RESOLVEFUNC(CRYPTO_free)
+        RESOLVEFUNC(CRYPTO_memcmp)
         RESOLVEFUNC(OpenSSL_version_num)
         RESOLVEFUNC(OpenSSL_version)
 
diff --git a/src/plugins/tls/openssl/qsslsocket_openssl_symbols_p.h b/src/plugins/tls/openssl/qsslsocket_openssl_symbols_p.h
index 1f0d7392..c954d177 100644
--- a/src/plugins/tls/openssl/qsslsocket_openssl_symbols_p.h
+++ b/src/plugins/tls/openssl/qsslsocket_openssl_symbols_p.h
@@ -666,6 +666,7 @@ void *q_CRYPTO_malloc(size_t num, const char *file, int line);
 #define q_OPENSSL_malloc(num) q_CRYPTO_malloc(num, "", 0)
 void q_CRYPTO_free(void *str, const char *file, int line);
 # define q_OPENSSL_free(addr) q_CRYPTO_free(addr, "", 0)
+int q_CRYPTO_memcmp(const void * in_a, const void * in_b, size_t len);
 
 void q_SSL_set_info_callback(SSL *ssl, void (*cb) (const SSL *ssl, int type, int val));
 const char *q_SSL_alert_type_string(int value);
diff --git a/src/plugins/tls/schannel/qtls_schannel.cpp b/src/plugins/tls/schannel/qtls_schannel.cpp
index c056f0f7..ae9ff06e 100644
--- a/src/plugins/tls/schannel/qtls_schannel.cpp
+++ b/src/plugins/tls/schannel/qtls_schannel.cpp
@@ -31,12 +31,6 @@
 #define SUPPORTS_ALPN 1
 #endif
 
-// Redstone 5/1809 has all the API available, but TLS 1.3 is not enabled until a later version of
-// Win 10, checked at runtime in supportsTls13()
-#if defined(NTDDI_WIN10_RS5) && NTDDI_VERSION >= NTDDI_WIN10_RS5
-#define SUPPORTS_TLS13 1
-#endif
-
 // Not defined in MinGW
 #ifndef SECBUFFER_ALERT
 #define SECBUFFER_ALERT 17
@@ -319,6 +313,11 @@ QTlsPrivate::X509DerReaderPtr QSchannelBackend::X509DerReader() const
     return QTlsPrivate::X509CertificateGeneric::certificatesFromDer;
 }
 
+QTlsPrivate::X509Pkcs12ReaderPtr QSchannelBackend::X509Pkcs12Reader() const
+{
+    return QTlsPrivate::X509CertificateSchannel::importPkcs12;
+}
+
 namespace {
 
 SecBuffer createSecBuffer(void *ptr, unsigned long length, unsigned long bufferType)
@@ -383,7 +382,6 @@ QString schannelErrorToString(qint32 status)
 
 bool supportsTls13()
 {
-#ifdef SUPPORTS_TLS13
     static bool supported = []() {
         const auto current = QOperatingSystemVersion::current();
         // 20221 just happens to be the preview version I run on my laptop where I tested TLS 1.3.
@@ -391,10 +389,8 @@ bool supportsTls13()
                 QOperatingSystemVersion(QOperatingSystemVersion::Windows, 10, 0, 20221);
         return current >= minimum;
     }();
+
     return supported;
-#else
-    return false;
-#endif
 }
 
 DWORD toSchannelProtocol(QSsl::SslProtocol protocol)
@@ -459,7 +455,6 @@ QT_WARNING_POP
     return protocols;
 }
 
-#ifdef SUPPORTS_TLS13
 // In the new API that descended down upon us we are not asked which protocols we want
 // but rather which protocols we don't want. So now we have this function to disable
 // anything that is not enabled.
@@ -469,7 +464,6 @@ DWORD toSchannelProtocolNegated(QSsl::SslProtocol protocol)
     protocols &= ~toSchannelProtocol(protocol); // minus the one(s) we want
     return protocols;
 }
-#endif
 
 /*!
     \internal
@@ -679,6 +673,10 @@ qint64 checkIncompleteData(const SecBuffer &secBuffer)
     return 0;
 }
 
+DWORD defaultCredsFlag()
+{
+    return qEnvironmentVariableIsSet("QT_SCH_DEFAULT_CREDS") ? 0 : SCH_CRED_NO_DEFAULT_CREDS;
+}
 } // anonymous namespace
 
 
@@ -834,8 +832,7 @@ bool TlsCryptographSchannel::acquireCredentialsHandle()
         certsCount = 1;
         Q_ASSERT(localCertContext);
     }
-    void *credentials = nullptr;
-#ifdef SUPPORTS_TLS13
+
     TLS_PARAMETERS tlsParameters = {
         0,
         nullptr,
@@ -844,70 +841,33 @@ bool TlsCryptographSchannel::acquireCredentialsHandle()
         nullptr,
         0
     };
-    if (supportsTls13()) {
-        SCH_CREDENTIALS *cred = new SCH_CREDENTIALS{
-            SCH_CREDENTIALS_VERSION,
-            0,
-            certsCount,
-            &localCertContext,
-            nullptr,
-            0,
-            nullptr,
-            0,
-            SCH_CRED_REVOCATION_CHECK_CHAIN_EXCLUDE_ROOT
-                    | SCH_CRED_NO_DEFAULT_CREDS,
-            1,
-            &tlsParameters
-        };
-        credentials = cred;
-    } else
-#endif // SUPPORTS_TLS13
-    {
-        SCHANNEL_CRED *cred = new SCHANNEL_CRED{
-            SCHANNEL_CRED_VERSION, // dwVersion
-            certsCount, // cCreds
-            &localCertContext, // paCred (certificate(s) containing a private key for authentication)
-            nullptr, // hRootStore
 
-            0, // cMappers (reserved)
-            nullptr, // aphMappers (reserved)
-
-            0, // cSupportedAlgs
-            nullptr, // palgSupportedAlgs (nullptr = system default)
-
-            protocols, // grbitEnabledProtocols
-            0, // dwMinimumCipherStrength (0 = system default)
-            0, // dwMaximumCipherStrength (0 = system default)
-            0, // dwSessionLifespan (0 = schannel default, 10 hours)
-            SCH_CRED_REVOCATION_CHECK_CHAIN_EXCLUDE_ROOT
-                    | SCH_CRED_NO_DEFAULT_CREDS, // dwFlags
-            0 // dwCredFormat (must be 0)
-        };
-        credentials = cred;
-    }
-    Q_ASSERT(credentials != nullptr);
+    SCH_CREDENTIALS credentials = {
+        SCH_CREDENTIALS_VERSION,
+        0,
+        certsCount,
+        &localCertContext,
+        nullptr,
+        0,
+        nullptr,
+        0,
+        SCH_CRED_REVOCATION_CHECK_CHAIN_EXCLUDE_ROOT | defaultCredsFlag(),
+        1,
+        &tlsParameters
+    };
 
     TimeStamp expiration{};
     auto status = AcquireCredentialsHandle(nullptr, // pszPrincipal (unused)
                                            const_cast<wchar_t *>(UNISP_NAME), // pszPackage
                                            isClient ? SECPKG_CRED_OUTBOUND : SECPKG_CRED_INBOUND, // fCredentialUse
                                            nullptr, // pvLogonID (unused)
-                                           credentials, // pAuthData
+                                           &credentials, // pAuthData
                                            nullptr, // pGetKeyFn (unused)
                                            nullptr, // pvGetKeyArgument (unused)
                                            &credentialHandle, // phCredential
                                            &expiration // ptsExpir
     );
 
-#ifdef SUPPORTS_TLS13
-    if (supportsTls13()) {
-        delete static_cast<SCH_CREDENTIALS *>(credentials);
-    } else
-#endif // SUPPORTS_TLS13
-    {
-        delete static_cast<SCHANNEL_CRED *>(credentials);
-    }
-
     if (status != SEC_E_OK) {
         setErrorAndEmit(d, QAbstractSocket::SslInternalError, schannelErrorToString(status));
         return false;
diff --git a/src/plugins/tls/schannel/qtlsbackend_schannel_p.h b/src/plugins/tls/schannel/qtlsbackend_schannel_p.h
index a70f8922..7c2d675e 100644
--- a/src/plugins/tls/schannel/qtlsbackend_schannel_p.h
+++ b/src/plugins/tls/schannel/qtlsbackend_schannel_p.h
@@ -57,6 +57,7 @@ private:
 
     QTlsPrivate::X509PemReaderPtr X509PemReader() const override;
     QTlsPrivate::X509DerReaderPtr X509DerReader() const override;
+    QTlsPrivate::X509Pkcs12ReaderPtr X509Pkcs12Reader() const override;
 
     static bool s_loadedCiphersAndCerts;
 };
diff --git a/src/plugins/tls/schannel/qx509_schannel.cpp b/src/plugins/tls/schannel/qx509_schannel.cpp
index 5a5e6252..46be873a 100644
--- a/src/plugins/tls/schannel/qx509_schannel.cpp
+++ b/src/plugins/tls/schannel/qx509_schannel.cpp
@@ -1,9 +1,11 @@
 // Copyright (C) 2021 The Qt Company Ltd.
 // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
 
+#include "qtlsbackend_schannel_p.h"
 #include "qtlskey_schannel_p.h"
 #include "qx509_schannel_p.h"
 
+#include <QtCore/private/qsystemerror_p.h>
 #include <QtNetwork/private/qsslcertificate_p.h>
 
 #include <memory>
@@ -46,6 +48,165 @@ QSslCertificate X509CertificateSchannel::QSslCertificate_from_CERT_CONTEXT(const
     return certificate;
 }
 
+bool X509CertificateSchannel::importPkcs12(QIODevice *device, QSslKey *key, QSslCertificate *cert,
+                                           QList<QSslCertificate> *caCertificates,
+                                           const QByteArray &passPhrase)
+{
+    // These are required
+    Q_ASSERT(device);
+    Q_ASSERT(key);
+    Q_ASSERT(cert);
+
+    QByteArray pkcs12data = device->readAll();
+    if (pkcs12data.size() == 0)
+        return false;
+
+    CRYPT_DATA_BLOB dataBlob;
+    dataBlob.cbData = pkcs12data.size();
+    dataBlob.pbData = reinterpret_cast<BYTE*>(pkcs12data.data());
+
+    const auto password = QString::fromUtf8(passPhrase);
+
+    const DWORD flags = (CRYPT_EXPORTABLE | PKCS12_NO_PERSIST_KEY | PKCS12_PREFER_CNG_KSP);
+
+    auto certStore = QHCertStorePointer(PFXImportCertStore(&dataBlob,
+                                                           reinterpret_cast<LPCWSTR>(password.utf16()),
+                                                           flags));
+
+    if (!certStore) {
+        qCWarning(lcTlsBackendSchannel, "Failed to import PFX data: %s",
+                  qPrintable(QSystemError::windowsString()));
+        return false;
+    }
+
+    // first extract the certificate with the private key
+    const auto certContext = QPCCertContextPointer(CertFindCertificateInStore(certStore.get(),
+                                                                              X509_ASN_ENCODING |
+                                                                              PKCS_7_ASN_ENCODING,
+                                                                              0,
+                                                                              CERT_FIND_HAS_PRIVATE_KEY,
+                                                                              nullptr, nullptr));
+
+    if (!certContext) {
+        qCWarning(lcTlsBackendSchannel, "Failed to find certificate in PFX store: %s",
+                  qPrintable(QSystemError::windowsString()));
+        return false;
+    }
+
+    *cert = QSslCertificate_from_CERT_CONTEXT(certContext.get());
+
+    // retrieve the private key for the certificate
+    NCRYPT_KEY_HANDLE keyHandle = {};
+    DWORD keyHandleSize = sizeof(keyHandle);
+    if (!CertGetCertificateContextProperty(certContext.get(), CERT_NCRYPT_KEY_HANDLE_PROP_ID,
+                                           &keyHandle, &keyHandleSize)) {
+        qCWarning(lcTlsBackendSchannel, "Failed to find private key handle in certificate context: %s",
+                  qPrintable(QSystemError::windowsString()));
+        return false;
+    }
+
+    SECURITY_STATUS securityStatus = ERROR_SUCCESS;
+
+    // we need the 'NCRYPT_ALLOW_PLAINTEXT_EXPORT_FLAG' to make NCryptExportKey succeed
+    DWORD policy = (NCRYPT_ALLOW_EXPORT_FLAG | NCRYPT_ALLOW_PLAINTEXT_EXPORT_FLAG);
+    DWORD policySize = sizeof(policy);
+
+    securityStatus = NCryptSetProperty(keyHandle, NCRYPT_EXPORT_POLICY_PROPERTY,
+                                       reinterpret_cast<BYTE*>(&policy), policySize, 0);
+    if (securityStatus != ERROR_SUCCESS) {
+        qCWarning(lcTlsBackendSchannel, "Failed to update export policy of private key: 0x%x",
+                  static_cast<unsigned int>(securityStatus));
+        return false;
+    }
+
+    DWORD blobSize = {};
+    securityStatus = NCryptExportKey(keyHandle, {}, BCRYPT_RSAFULLPRIVATE_BLOB,
+                                     nullptr, nullptr, 0, &blobSize, 0);
+    if (securityStatus != ERROR_SUCCESS) {
+        qCWarning(lcTlsBackendSchannel, "Failed to retrieve private key size: 0x%x",
+                  static_cast<unsigned int>(securityStatus));
+        return false;
+    }
+
+    std::vector<BYTE> blob(blobSize);
+    securityStatus = NCryptExportKey(keyHandle, {}, BCRYPT_RSAFULLPRIVATE_BLOB,
+                                     nullptr, blob.data(), blobSize, &blobSize, 0);
+    if (securityStatus != ERROR_SUCCESS) {
+        qCWarning(lcTlsBackendSchannel, "Failed to retrieve private key from certificate: 0x%x",
+                  static_cast<unsigned int>(securityStatus));
+        return false;
+    }
+
+    DWORD privateKeySize = {};
+
+    if (!CryptEncodeObject(X509_ASN_ENCODING | PKCS_7_ASN_ENCODING, CNG_RSA_PRIVATE_KEY_BLOB,
+                           blob.data(), nullptr, &privateKeySize)) {
+        qCWarning(lcTlsBackendSchannel, "Failed to encode private key to key info: %s",
+                  qPrintable(QSystemError::windowsString()));
+        return false;
+    }
+
+    std::vector<BYTE> privateKeyData(privateKeySize);
+
+    CRYPT_PRIVATE_KEY_INFO privateKeyInfo = {};
+    privateKeyInfo.Algorithm.pszObjId = const_cast<PSTR>(szOID_RSA_RSA);
+    privateKeyInfo.PrivateKey.cbData = privateKeySize;
+    privateKeyInfo.PrivateKey.pbData = privateKeyData.data();
+
+    if (!CryptEncodeObject(X509_ASN_ENCODING | PKCS_7_ASN_ENCODING,
+                           CNG_RSA_PRIVATE_KEY_BLOB, blob.data(),
+                           privateKeyInfo.PrivateKey.pbData, &privateKeyInfo.PrivateKey.cbData)) {
+        qCWarning(lcTlsBackendSchannel, "Failed to encode private key to key info: %s",
+                  qPrintable(QSystemError::windowsString()));
+        return false;
+    }
+
+
+    DWORD derSize = {};
+
+    if (!CryptEncodeObject(X509_ASN_ENCODING | PKCS_7_ASN_ENCODING, PKCS_PRIVATE_KEY_INFO,
+                           &privateKeyInfo, nullptr, &derSize)) {
+        qCWarning(lcTlsBackendSchannel, "Failed to encode key info to DER format: %s",
+                  qPrintable(QSystemError::windowsString()));
+
+        return false;
+    }
+
+    QByteArray derData(derSize, Qt::Uninitialized);
+
+    if (!CryptEncodeObject(X509_ASN_ENCODING | PKCS_7_ASN_ENCODING, PKCS_PRIVATE_KEY_INFO,
+                           &privateKeyInfo, reinterpret_cast<BYTE*>(derData.data()), &derSize)) {
+        qCWarning(lcTlsBackendSchannel, "Failed to encode key info to DER format: %s",
+                  qPrintable(QSystemError::windowsString()));
+
+        return false;
+    }
+
+    *key = QSslKey(derData, QSsl::Rsa, QSsl::Der, QSsl::PrivateKey);
+    if (key->isNull()) {
+        qCWarning(lcTlsBackendSchannel, "Failed to parse private key from DER format");
+        return false;
+    }
+
+    // fetch all the remaining certificates as CA certificates
+    if (caCertificates) {
+        PCCERT_CONTEXT caCertContext = nullptr;
+        while ((caCertContext = CertFindCertificateInStore(certStore.get(),
+                                                           X509_ASN_ENCODING | PKCS_7_ASN_ENCODING,
+                                                           0, CERT_FIND_ANY, nullptr, caCertContext))) {
+            if (CertCompareCertificate(X509_ASN_ENCODING | PKCS_7_ASN_ENCODING,
+                                       certContext->pCertInfo, caCertContext->pCertInfo))
+                continue; // ignore the certificate with private key
+
+            auto caCertificate = QSslCertificate_from_CERT_CONTEXT(caCertContext);
+
+            caCertificates->append(caCertificate);
+        }
+    }
+
+    return true;
+}
+
 } // namespace QTlsPrivate
 
 QT_END_NAMESPACE
diff --git a/src/plugins/tls/schannel/qx509_schannel_p.h b/src/plugins/tls/schannel/qx509_schannel_p.h
index 17b91983..4625c958 100644
--- a/src/plugins/tls/schannel/qx509_schannel_p.h
+++ b/src/plugins/tls/schannel/qx509_schannel_p.h
@@ -36,6 +36,10 @@ public:
     Qt::HANDLE handle() const override;
 
     static QSslCertificate QSslCertificate_from_CERT_CONTEXT(const CERT_CONTEXT *certificateContext);
+
+    static bool importPkcs12(QIODevice *device, QSslKey *key, QSslCertificate *cert,
+                             QList<QSslCertificate> *caCertificates,
+                             const QByteArray &passPhrase);
 private:
     const CERT_CONTEXT *certificateContext = nullptr;
 
diff --git a/src/plugins/tls/shared/qwincrypt_p.h b/src/plugins/tls/shared/qwincrypt_p.h
index 1b1f0f16..48ca4247 100644
--- a/src/plugins/tls/shared/qwincrypt_p.h
+++ b/src/plugins/tls/shared/qwincrypt_p.h
@@ -40,6 +40,16 @@ struct QHCertStoreDeleter {
 // A simple RAII type used by Schannel code and Window CA fetcher class:
 using QHCertStorePointer = std::unique_ptr<void, QHCertStoreDeleter>;
 
+struct QPCCertContextDeleter {
+    void operator()(PCCERT_CONTEXT context) const
+    {
+        CertFreeCertificateContext(context);
+    }
+};
+
+// A simple RAII type used by Schannel code
+using QPCCertContextPointer = std::unique_ptr<const CERT_CONTEXT, QPCCertContextDeleter>;
+
 QT_END_NAMESPACE
 
 #endif // QWINCRYPT_P_H
diff --git a/src/plugins/tracing/qctflib.cpp b/src/plugins/tracing/qctflib.cpp
index a3be10c0..f57f1cf7 100644
--- a/src/plugins/tracing/qctflib.cpp
+++ b/src/plugins/tracing/qctflib.cpp
@@ -120,21 +120,20 @@ QCtfLibImpl::QCtfLibImpl()
     }
     m_session.all = m_session.tracepoints.contains(QStringLiteral("all"));
 
-    auto datetime = QDateTime::currentDateTime();
-    QString mhn = QSysInfo::machineHostName();
+    auto datetime = QDateTime::currentDateTime().toUTC();
+    const QString mhn = QSysInfo::machineHostName();
     QString metadata = QString::fromUtf8(traceMetadataTemplate, traceMetadataSize);
     metadata.replace(QStringLiteral("$TRACE_UUID"), s_TraceUuid.toString(QUuid::WithoutBraces));
     metadata.replace(QStringLiteral("$ARC_BIT_WIDTH"), QString::number(Q_PROCESSOR_WORDSIZE * 8));
     metadata.replace(QStringLiteral("$SESSION_NAME"), m_session.name);
-    metadata.replace(QStringLiteral("$CREATION_TIME"), datetime.toString());
+    metadata.replace(QStringLiteral("$CREATION_TIME"), datetime.toString(Qt::ISODate));
     metadata.replace(QStringLiteral("$HOST_NAME"), mhn);
-    metadata.replace(QStringLiteral("$CLOCK_FREQUENCY"), m_timer.isMonotonic() ? QStringLiteral("1000000000") : QStringLiteral("1000"));
-    metadata.replace(QStringLiteral("$CLOCK_NAME"), m_timer.isMonotonic() ? QStringLiteral("monotonic") : QStringLiteral("system"));
-    metadata.replace(QStringLiteral("$CLOCK_TYPE"), m_timer.isMonotonic() ? QStringLiteral("Monotonic clock") : QStringLiteral("System clock"));
+    metadata.replace(QStringLiteral("$CLOCK_FREQUENCY"), QStringLiteral("1000000000"));
+    metadata.replace(QStringLiteral("$CLOCK_NAME"), QStringLiteral("monotonic"));
+    metadata.replace(QStringLiteral("$CLOCK_TYPE"), QStringLiteral("Monotonic clock"));
     metadata.replace(QStringLiteral("$CLOCK_OFFSET"), QString::number(datetime.toMSecsSinceEpoch() * 1000000));
     metadata.replace(QStringLiteral("$ENDIANNESS"), QSysInfo::ByteOrder == QSysInfo::BigEndian ? u"be"_s : u"le"_s);
     writeMetadata(metadata, true);
-
     m_timer.start();
 }
 
diff --git a/src/sql/compat/removed_api.cpp b/src/sql/compat/removed_api.cpp
index ff223b99..9da60ece 100644
--- a/src/sql/compat/removed_api.cpp
+++ b/src/sql/compat/removed_api.cpp
@@ -9,10 +9,6 @@ QT_USE_NAMESPACE
 
 #if QT_SQL_REMOVED_SINCE(6, 4)
 
-// #include <qotherheader.h>
-// // implement removed functions from qotherheader.h
-// order sections alphabetically to reduce chances of merge conflicts
-
 #endif // QT_SQL_REMOVED_SINCE(6, 4)
 
 #if QT_SQL_REMOVED_SINCE(6, 5)
@@ -36,8 +32,21 @@ void QSqlTableModel::setQuery(const QSqlQuery &query)
 
 #endif // QT_CONFIG(sqlmodel)
 
+#endif // QT_SQL_REMOVED_SINCE(6, 5)
+
+#if QT_SQL_REMOVED_SINCE(6, 6)
+
+#include "qsqlresult.h"
+#include <QtSql/private/qsqlresult_p.h>
+
 // #include <qotherheader.h>
 // // implement removed functions from qotherheader.h
 // order sections alphabetically to reduce chances of merge conflicts
 
-#endif // QT_SQL_REMOVED_SINCE(6, 5)
+QList<QVariant> &QSqlResult::boundValues() const
+{
+    Q_D(const QSqlResult);
+    return const_cast<QSqlResultPrivate *>(d)->values;
+}
+
+#endif // QT_SQL_REMOVED_SINCE(6, 6)
diff --git a/src/sql/doc/snippets/code/doc_src_sql-driver.cpp b/src/sql/doc/snippets/code/doc_src_sql-driver.cpp
index 223d8047..efcb45c9 100644
--- a/src/sql/doc/snippets/code/doc_src_sql-driver.cpp
+++ b/src/sql/doc/snippets/code/doc_src_sql-driver.cpp
@@ -35,14 +35,6 @@ QSqlDatabase db;
 db.setHostName("MyServer");
 db.setDatabaseName("C:\\test.gdb");
 //! [24]
-
-
-//! [25]
-// connect to database using the Latin-1 character set
-db.setConnectOptions("ISC_DPB_LC_CTYPE=Latin1");
-if (db.open())
-    qDebug("The database connection is open.");
-//! [25]
 }
 
 void exProc()
@@ -86,17 +78,15 @@ while (query1.next()) {
 //! [37]
 }
 
-
-void setConnString()
+void callOutProc()
 {
-//! [39]
-QSqlDatabase db = QSqlDatabase::addDatabase("QODBC");
-QString connectString = QStringLiteral(
-    "DRIVER=/path/to/installation/libodbcHDB.so;"
-    "SERVERNODE=hostname:port;"
-    "UID=USER;"
-    "PWD=PASSWORD;"
-    "SCROLLABLERESULT=true");
-db.setDatabaseName(connectString);
-//! [39]
+//! [40]
+    QSqlDatabase db;
+    QSqlQuery query;
+    int i1 = 10, i2 = 0;
+    query.prepare("call qtestproc(?, ?)");
+    query.bindValue(0, i1, QSql::InOut);
+    query.bindValue(1, i2, QSql::Out);
+    query.exec();
+//! [40]
 }
diff --git a/src/sql/doc/snippets/code/doc_src_sql-driver.qdoc b/src/sql/doc/snippets/code/doc_src_sql-driver.qdoc
index 950ea87c..9c329aa2 100644
--- a/src/sql/doc/snippets/code/doc_src_sql-driver.qdoc
+++ b/src/sql/doc/snippets/code/doc_src_sql-driver.qdoc
@@ -27,8 +27,7 @@ END
 //! [3]
 mkdir build-sqldrivers
 cd build-sqldrivers
-
-qt-cmake -G Ninja <qt_installation_path>/Src/qtbase/src/plugins/sqldrivers -DCMAKE_INSTALL_PREFIX=<qt_installation_path>/<platform> -DMySQL_INCLUDE_DIR="/usr/local/mysql/include" -DMySQL_LIBRARY="/usr/local/mysql/lib/libmysqlclient.<so|dylib>"
+qt-cmake -G Ninja <qt_source_directory>/qtbase/src/plugins/sqldrivers -DCMAKE_INSTALL_PREFIX=<qt_installation_path>/<platform> -DMySQL_INCLUDE_DIR="/usr/local/mysql/include" -DMySQL_LIBRARY="/usr/local/mysql/lib/libmysqlclient.<so|dylib>"
 cmake --build .
 cmake --install .
 //! [3]
@@ -37,7 +36,6 @@ cmake --install .
 //! [5]
 mkdir build-sqldrivers
 cd build-sqldrivers
-
 qt-cmake -G Ninja <qt_installation_path>\Src\qtbase\src\plugins\sqldrivers -DCMAKE_INSTALL_PREFIX=<qt_installation_path>\<platform> -DMySQL_INCLUDE_DIR="C:\mysql-8.0.22-winx64\include" -DMySQL_LIBRARY="C:\mysql-8.0.22-winx64\lib\libmysql.lib"
 cmake --build .
 cmake --install .
@@ -47,8 +45,7 @@ cmake --install .
 //! [7]
 mkdir build-sqldrivers
 cd build-sqldrivers
-
-qt-cmake -G Ninja <qt_installation_path>/Src/qtbase/src/plugins/sqldrivers -DCMAKE_INSTALL_PREFIX=<qt_installation_path>/<platform> -DOracle_INCLUDE_DIR="/usr/include/oracle/21/client64" -DOracle_LIBRARY="/usr/lib/oracle/21/client64/lib/libclntsh.<so|dylib>"
+qt-cmake -G Ninja <qt_source_directory>/qtbase/src/plugins/sqldrivers -DCMAKE_INSTALL_PREFIX=<qt_installation_path>/<platform> -DOracle_INCLUDE_DIR="/usr/include/oracle/21/client64" -DOracle_LIBRARY="/usr/lib/oracle/21/client64/lib/libclntsh.<so|dylib>"
 cmake --build .
 cmake --install .
 //! [7]
@@ -71,8 +68,7 @@ set PATH=%PATH%;C:\oracle
 //! [11]
 mkdir build-sqldrivers
 cd build-sqldrivers
-
-qt-cmake -G Ninja <qt_installation_path>/Src/qtbase/src/plugins/sqldrivers -DCMAKE_INSTALL_PREFIX=<qt_installation_path>/<platform> -DODBC_INCLUDE_DIR="/usr/local/unixODBC/include" -DODBC_LIBRARY="/usr/local/unixODBC/lib/libodbc.<so|dylib>"
+qt-cmake -G Ninja <qt_source_directory>/qtbase/src/plugins/sqldrivers -DCMAKE_INSTALL_PREFIX=<qt_installation_path>/<platform> -DODBC_INCLUDE_DIR="/usr/local/unixODBC/include" -DODBC_LIBRARY="/usr/local/unixODBC/lib/libodbc.<so|dylib>"
 cmake --build .
 cmake --install .
 //! [11]
@@ -81,7 +77,6 @@ cmake --install .
 //! [12]
 mkdir build-sqldrivers
 cd build-sqldrivers
-
 qt-cmake -G Ninja <qt_installation_path>\Src\qtbase\src\plugins\sqldrivers -DCMAKE_INSTALL_PREFIX=<qt_installation_path>\<platform>
 cmake --build .
 cmake --install .
@@ -92,7 +87,7 @@ cmake --install .
 mkdir build-psql-driver
 cd build-psql-driver
 
-qt-cmake -G Ninja <qt_installation_path>/Src/qtbase/src/plugins/sqldrivers-DCMAKE_INSTALL_PREFIX=<qt_installation_path>/<platform> -DCMAKE_INCLUDE_PATH="/usr/local/pgsql/include" -DCMAKE_LIBRARY_PATH="/usr/local/pgsql/lib"
+qt-cmake -G Ninja <qt_source_directory>/qtbase/src/plugins/sqldrivers-DCMAKE_INSTALL_PREFIX=<qt_installation_path>/<platform> -DCMAKE_INCLUDE_PATH="/usr/local/pgsql/include" -DCMAKE_LIBRARY_PATH="/usr/local/pgsql/lib"
 cmake --build .
 cmake --install .
 //! [13]
@@ -101,7 +96,6 @@ cmake --install .
 //! [15]
 mkdir build-sqldrivers
 cd build-sqldrivers
-
 qt-cmake -G Ninja <qt_installation_path>\Src\qtbase\src\plugins\sqldrivers -DCMAKE_INSTALL_PREFIX=<qt_installation_path>\<platform> -DCMAKE_INCLUDE_PATH="C:\pgsql\include" -DCMAKE_LIBRARY_PATH="C:\pgsql\lib"
 cmake --build .
 cmake --install .
@@ -111,8 +105,7 @@ cmake --install .
 //! [18]
 mkdir build-sqldrivers
 cd build-sqldrivers
-
-qt-cmake -G Ninja <qt_installation_path>/Src/qtbase/src/plugins/sqldrivers -DCMAKE_INSTALL_PREFIX=<qt_installation_path>/<platform> -DDB2_INCLUDE_DIR="/usr/local/db2/include" -DDB2_LIBRARY="/usr/local/db2/lib/libdb2.<so|dylib>"
+qt-cmake -G Ninja <qt_source_directory>/qtbase/src/plugins/sqldrivers -DCMAKE_INSTALL_PREFIX=<qt_installation_path>/<platform> -DDB2_INCLUDE_DIR="/usr/local/db2/include" -DDB2_LIBRARY="/usr/local/db2/lib/libdb2.<so|dylib>"
 cmake --build .
 cmake --install .
 //! [18]
@@ -121,7 +114,6 @@ cmake --install .
 //! [20]
 mkdir build-sqldrivers
 cd build-sqldrivers
-
 qt-cmake -G Ninja <qt_installation_path>\Src\qtbase\src\plugins\sqldrivers -DCMAKE_INSTALL_PREFIX=<qt_installation_path>\<platform> -DDB2_INCLUDE_DIR="C:\db2\include" -DDB2_LIBRARY="C:\db2\lib\db2.lib"
 cmake --build .
 cmake --install .
@@ -131,8 +123,7 @@ cmake --install .
 //! [21]
 mkdir build-sqldrivers
 cd build-sqldrivers
-
-qt-cmake -G Ninja <qt_installation_path>/Src/qtbase/src/plugins/sqldrivers -DCMAKE_INSTALL_PREFIX=<qt_installation_path>/<platform> -DFEATURE_system_sqlite=ON -DCMAKE_INCLUDE_PATH="$SQLITE/include" -DCMAKE_LIBRARY_PATH="$SQLITE/lib"
+qt-cmake -G Ninja <qt_source_directory>/qtbase/src/plugins/sqldrivers -DCMAKE_INSTALL_PREFIX=<qt_installation_path>/<platform> -DFEATURE_system_sqlite=ON -DCMAKE_INCLUDE_PATH="$SQLITE/include" -DCMAKE_LIBRARY_PATH="$SQLITE/lib"
 cmake --build .
 cmake --install .
 //! [21]
@@ -141,7 +132,6 @@ cmake --install .
 //! [23]
 mkdir build-sqldrivers
 cd build-sqldrivers
-
 qt-cmake -G Ninja <qt_installation_path>\Src\qtbase\src\plugins\sqldrivers -DCMAKE_INSTALL_PREFIX=<qt_installation_path>\<platform> -DFEATURE_system_sqlite=ON -DCMAKE_INCLUDE_PATH="C:\SQLITE\include" -DCMAKE_LIBRARY_PATH="C:\SQLITE\lib"
 cmake --build .
 cmake --install .
@@ -151,8 +141,7 @@ cmake --install .
 //! [27]
 mkdir build-sqldrivers
 cd build-sqldrivers
-
-qt-cmake -G Ninja <qt_installation_path>/Src/qtbase/src/plugins/sqldrivers -DCMAKE_INSTALL_PREFIX=<qt_installation_path>/<platform> -DInterbase_INCLUDE_DIR="/opt/interbase/include" -DInterbase_LIBRARY="/opt/interbase/lib/libgds.<so|dylib>"
+qt-cmake -G Ninja <qt_source_directory>/qtbase/src/plugins/sqldrivers -DCMAKE_INSTALL_PREFIX=<qt_installation_path>/<platform> -DInterbase_INCLUDE_DIR="/opt/interbase/include" -DInterbase_LIBRARY="/opt/interbase/lib/libgds.<so|dylib>"
 cmake --build .
 cmake --install .
 //! [27]
@@ -161,8 +150,7 @@ cmake --install .
 //! [28]
 mkdir build-sqldrivers
 cd build-sqldrivers
-
-qt-cmake -G Ninja <qt_installation_path>/Src/qtbase/src/plugins/sqldrivers -DCMAKE_INSTALL_PREFIX=<qt_installation_path>/<platform> -DInterbase_INCLUDE_DIR="/opt/interbase/include" -DInterbase_LIBRARY="/opt/interbase/lib/libfbclient.<so|dylib>"
+qt-cmake -G Ninja <qt_source_directory>/qtbase/src/plugins/sqldrivers -DCMAKE_INSTALL_PREFIX=<qt_installation_path>/<platform> -DInterbase_INCLUDE_DIR="/opt/interbase/include" -DInterbase_LIBRARY="/opt/interbase/lib/libfbclient.<so|dylib>"
 cmake --build .
 cmake --install .
 //! [28]
@@ -171,7 +159,6 @@ cmake --install .
 //! [29]
 mkdir build-sqldrivers
 cd build-sqldrivers
-
 qt-cmake -G Ninja <qt_installation_path>\Src\qtbase\src\plugins\sqldrivers -DCMAKE_INSTALL_PREFIX=<qt_installation_path>\<platform> -DInterbase_INCLUDE_DIR="C:\interbase\include" -DInterbase_LIBRARY="C:\interbase\gds.lib"
 cmake --build .
 cmake --install .
@@ -181,12 +168,28 @@ cmake --install .
 //! [30]
 mkdir build-sqldrivers
 cd build-sqldrivers
-
 qt-cmake -G Ninja <qt_installation_path>\Src\qtbase\src\plugins\sqldrivers -DCMAKE_INSTALL_PREFIX=<qt_installation_path>\<platform> -DInterbase_INCLUDE_DIR="C:\interbase\include" -DInterbase_LIBRARY="C:\interbase\lib\fbclient_ms.lib"
 cmake --build .
 cmake --install .
 //! [30]
 
+//! [31]
+mkdir build-sqldrivers
+cd build-sqldrivers
+
+qt-cmake -G Ninja <qt_installation_path>\Src\qtbase\src\plugins\sqldrivers -DCMAKE_INSTALL_PREFIX=<qt_installation_path>\<platform> -DMimer_INCLUDE_DIR="/usr/include" -DMimer_LIBRARIES="/usr/lib/libmimer.so"
+cmake --build .
+cmake --install .
+//! [31]
+
+//! [32]
+mkdir build-sqldrivers
+cd build-sqldrivers
+
+qt-cmake -G Ninja <qt_installation_path>\Src\qtbase\src\plugins\sqldrivers -DCMAKE_INSTALL_PREFIX=<qt_installation_path>\<platform> -DMimer_INCLUDE_DIR="C:\Program Files\Mimer SQL Experience 11.0\dev\include" -DMimer_LIBRARIES="C:\Program Files\Mimer SQL Experience 11.0\dev\lib\amd64\mimapi64.lib|C:\Program Files\Mimer SQL Experience 11.0\dev\lib\x86\mimapi32.lib"
+cmake --build .
+cmake --install .
+//! [32]
 
 //! [35]
 QSqlDatabase: QPSQL driver not loaded
@@ -219,6 +222,7 @@ Configure summary:
 Qt Sql Drivers:
   DB2 (IBM) .............................. no
   InterBase .............................. no
+  Mimer SQL .............................. yes
   MySql .................................. yes
   OCI (Oracle) ........................... no
   ODBC ................................... yes
@@ -239,6 +243,7 @@ Configure summary:
 Qt Sql Drivers:
   DB2 (IBM) .............................. no
   InterBase .............................. no
+  Mimer SQL .............................. yes
   MySql .................................. yes
   OCI (Oracle) ........................... no
   ODBC ................................... yes
@@ -256,6 +261,7 @@ Configure summary:
 Qt Sql Drivers:
   DB2 (IBM) .............................. no
   InterBase .............................. no
+  Mimer SQL .............................. yes
   MySql .................................. yes
   OCI (Oracle) ........................... no
   ODBC ................................... yes
@@ -264,3 +270,11 @@ Qt Sql Drivers:
     Using system provided SQLite ......... no
 ...
 //! [43]
+
+//! [44]
+create procedure inout_proc (INOUT param1 INT, OUT param2 INT)
+BEGIN
+    set param1 = param1 * 2;
+    set param2 = param1 * param1;
+END
+//! [44]
diff --git a/src/sql/doc/snippets/sqldatabase/sqldatabase.cpp b/src/sql/doc/snippets/sqldatabase/sqldatabase.cpp
index 933124e7..57021163 100644
--- a/src/sql/doc/snippets/sqldatabase/sqldatabase.cpp
+++ b/src/sql/doc/snippets/sqldatabase/sqldatabase.cpp
@@ -156,9 +156,9 @@ void QSqlQuery_snippets()
     {
     // examine with named or positional binding
 //! [14]
-    QVariantList list = query.boundValues();
-    for (int i = 0; i < list.size(); ++i)
-        cout << i << ": " << list.at(i).toString().toUtf8().data() << "\n";
+    const QVariantList list = query.boundValues();
+    for (qsizetype i = 0; i < list.size(); ++i)
+        qDebug() << i << ":" << list.at(i).toString();
 //! [14]
     }
 }
diff --git a/src/sql/doc/src/qsqldatatype-table.qdoc b/src/sql/doc/src/qsqldatatype-table.qdoc
index 58a27a05..6eabf269 100644
--- a/src/sql/doc/src/qsqldatatype-table.qdoc
+++ b/src/sql/doc/src/qsqldatatype-table.qdoc
@@ -269,7 +269,7 @@
     \row
         \li NUMBER(p,s)
         \li NUMERIC(p,s) DECIMAL(p,s)a
-        \li By default mapping to QString
+        \li Mapped to QString
     \row
         \li NVARCHAR2(n)
         \li Character string (NATIONAL CHARACTER VARYING(n) NATIONAL
@@ -478,4 +478,90 @@
         \li The value is a BLOB of data, stored exactly as it was input.
         \li Mapped to QByteArray
   \endtable
+
+  \section2 Mimer SQL Data Types
+
+  \table 90%
+    \header
+        \li Mimer SQL type
+        \li SQL type description
+        \li Recommended input (C++ or Qt data type)
+    \row
+        \li SMALLINT
+        \li 16-bit signed integer
+        \li typedef qint16
+    \row
+        \li INTEGER
+        \li 32-bit signed integer
+        \li typedef qint32
+    \row
+        \li BIGINT
+        \li 64-bit signed integer
+        \li typedef qint64
+    \row
+        \li REAL
+        \li 32-bit Single-precision floating point
+        \li typedef qreal
+    \row
+        \li DOUBLE PRECISION
+        \li 64-bit Double-precision floating point
+        \li Mapped to QString for high precision doubles, otherwise qreal
+    \row
+        \li FLOAT
+        \li 64-bit Double-precision floating point
+        \li typedef qreal
+    \row
+        \li CHAR
+        \li Fixed-length, null-terminated character string
+        \li Mapped to QString
+    \row
+        \li VARCHAR
+        \li Null-terminated varying length string
+        \li Mapped to QString
+    \row
+        \li NCHAR
+        \li Fixed-length, null-terminated Unicode character string
+        \li Mapped to QString
+    \row
+        \li NVARCHAR
+        \li Null-terminated varying length Unicode string
+        \li Mapped to QString
+    \row
+        \li BLOB
+        \li Not null-terminated varying binary string with 4-byte string
+        length indicator
+        \li Mapped to QByteArray
+    \row
+        \li CLOB
+        \li Character large string object
+        \li Mapped to QString
+    \row
+        \li NCLOB
+        \li National Character large string object
+        \li Mapped to QString
+    \row
+        \li DATE
+        \li Null-terminated character string of the following format:
+        yyyy-mm-dd
+        \li Mapped to QDate
+    \row
+        \li TIME
+        \li Null-terminated character string of the following format: hh.mm.ss
+        \li Mapped to QTime
+    \row
+        \li TIMESTAMP
+        \li Null-terminated character string of the following format: yyyy-mm-dd-hh.mm.ss.nnnnnn
+        \li Mapped to QDateTime
+    \row
+        \li BUILTIN.UUID
+        \li Universally unique identifier
+        \li Mapped to QUuid
+    \row
+        \li BOOLEAN
+        \li Boolean
+        \li bool
+    \row
+        \li DECIMAL(p,s)
+        \li By default mapping to QString
+  \endtable
 */
diff --git a/src/sql/doc/src/sql-driver.qdoc b/src/sql/doc/src/sql-driver.qdoc
index 0e6f1ecc..97af8c62 100644
--- a/src/sql/doc/src/sql-driver.qdoc
+++ b/src/sql/doc/src/sql-driver.qdoc
@@ -31,6 +31,7 @@
             ODBC-compliant databases
     \row \li \l{#QPSQL}{QPSQL} \li PostgreSQL (versions 7.3 and above)
     \row \li \l{#QSQLITE}{QSQLITE} \li SQLite version 3
+    \row \li \l{#QMIMER}{QMIMER} \li Mimer SQL (version 11 and above)
     \endtable
 
     SQLite is the in-process database system with the best test coverage
@@ -126,7 +127,7 @@
 
     \section3 QMYSQL Stored Procedure Support
 
-    MySQL 5 has stored procedure support at the SQL level, but no
+    MySQL has stored procedure support at the SQL level, but no
     API to control IN, OUT, and INOUT parameters. Therefore, parameters
     have to be set and read using SQL commands instead of QSqlQuery::bindValue().
 
@@ -155,6 +156,96 @@
     Please refer to the MySQL documentation, chapter "libmysqld, the Embedded
     MySQL Server Library" for more information about the MySQL embedded server.
 
+    \section3 Connection options
+    The Qt MySQL/MariaDB plugin honors the following connection options:
+    \table
+    \header \li Attribute \li Possible value
+    \row
+      \li CLIENT_COMPRESS
+      \li If set, switches to compressed protocol after successful authentication
+    \row
+      \li CLIENT_FOUND_ROWS
+      \li If set, send found rows instead of affected rows
+    \row
+      \li CLIENT_IGNORE_SPACE
+      \li If set, ignore spaces before '('
+    \row
+      \li CLIENT_NO_SCHEMA
+      \li If set, don't allow database.table.column
+    \row
+      \li CLIENT_INTERACTIVE
+      \li If set, client is treated as interactive
+    \row
+      \li MYSQL_OPT_PROTOCOL
+      \li explicitly specify the protocol to use:\br
+          MYSQL_PROTOCOL_TCP: use tcp connection (ip/hostname specified through setHostname())
+          MYSQL_PROTOCOL_SOCKET: connect through a socket specified in UNIX_SOCKET
+          MYSQL_PROTOCOL_PIPE: connect through a named pipe specified in UNIX_SOCKET
+          MYSQL_PROTOCOL_MEMORY: connect through shared memory specified in MYSQL_SHARED_MEMORY_BASE_NAME
+    \row
+      \li UNIX_SOCKET
+      \li Specifies the socket or named pipe to use, even it's called UNIX_SOCKET it
+          can also be used on windows
+    \row
+      \li MYSQL_SHARED_MEMORY_BASE_NAME
+      \li Specified the shared memory segment name to use
+    \row
+      \li MYSQL_OPT_RECONNECT
+      \li TRUE or 1: Automatically reconnect after connection loss\br
+          FALSE or 0: No automatic reconnect after connection loss (default)\br
+          See \l {https://dev.mysql.com/doc/c-api/8.0/en/c-api-auto-reconnect.html}
+          {Automatic Reconnection Control}
+    \row
+      \li MYSQL_OPT_CONNECT_TIMEOUT
+      \li The connect timeout in seconds
+    \row
+      \li MYSQL_OPT_READ_TIMEOUT
+      \li The timeout in seconds for each attempt to read from the server
+    \row
+      \li MYSQL_OPT_WRITE_TIMEOUT
+      \li The timeout in seconds for each attempt to write to the server
+    \row
+      \li MYSQL_OPT_LOCAL_INFILE
+      \li Set to 1 to enable the support for local
+          \l {https://dev.mysql.com/doc/refman/8.0/en/load-data.html} {LOAD_DATA},
+          disabled if not set or 0
+    \row
+      \li MYSQL_OPT_SSL_MODE
+      \li The security state to use for the connection to the server: SSL_MODE_DISABLED,
+          SSL_MODE_PREFERRED, SSL_MODE_REQUIRED, SSL_MODE_VERIFY_CA, SSL_MODE_VERIFY_IDENTITY.
+    \row
+      \li MYSQL_OPT_TLS_VERSION
+      \li A list of protocols the client permits for encrypted connections. The value can be
+          a combination of 'TLSv1' ,' TLSv1.1', 'TLSv1.2' or 'TLSv1.3' depending on the used \l
+          {https://dev.mysql.com/doc/refman/8.0/en/encrypted-connection-protocols-ciphers.html#encrypted-connection-protocol-configuration}
+          {MySQL server} version.
+    \row
+      \li MYSQL_OPT_SSL_KEY / SSL_KEY (deprecated)
+      \li The path name of the client private key file
+    \row
+      \li MYSQL_OPT_SSL_CERT / SSL_CERT (deprecated)
+      \li The path name of the client public key certificate file
+    \row
+      \li MYSQL_OPT_SSL_CA / SSL_CA (deprecated)
+      \li The path name of the Certificate Authority (CA) certificate file
+    \row
+      \li MYSQL_OPT_SSL_CAPATH / SSL_CAPATH (deprecated)
+      \li The path name of the directory that contains trusted SSL CA certificate files
+    \row
+      \li MYSQL_OPT_SSL_CIPHER / SSL_CIPHER (deprecated)
+      \li The list of permissible ciphers for SSL encryption
+    \row
+      \li MYSQL_OPT_SSL_CRL
+      \li The path name of the file containing certificate revocation lists
+    \row
+      \li MYSQL_OPT_SSL_CRLPATH
+      \li The path name of the directory that contains files containing certificate revocation lists
+    \endtable
+    For more detailed information about the connect options please refer
+    to the \l {https://dev.mysql.com/doc/c-api/8.0/en/mysql-options.html}
+    {mysql_options()} MySQL documentation.
+
+
     \section3 How to Build the QMYSQL Plugin on Unix and \macos
 
     You need the MySQL / MariaDB header files, as well as the shared library
@@ -171,8 +262,8 @@
     \section3 How to Build the QMYSQL Plugin on Windows
 
     You need to get the MySQL installation files (e.g.
-    \l {https://dev.mysql.com/downloads/installer/}{mysql-installer-web-community-8.0.22.0.msi} or
-    \l {https://downloads.mariadb.com/Connectors/c/connector-c-3.1.11/}{mariadb-connector-c-3.1.11-win64.msi}).
+    \l {https://dev.mysql.com/downloads/installer/}{MySQL web installer} or
+    \l {https://downloads.mariadb.com/Connectors/c/}{MariaDB C Connector}).
     Run the installer,
     select custom installation and install the MySQL C Connector
     which matches your Qt installation (x86 or x64).
@@ -237,6 +328,29 @@
     BLOBs are bound to placeholders or QSqlTableModel, which uses a prepared
     query to do this internally.
 
+    \section3 Connection options
+    The Qt OCI plugin honors the following connection options:
+    \table
+    \header \li Attribute \li Possible value
+    \row
+      \li OCI_ATTR_PREFETCH_ROWS
+      \li Sets the OCI attribute
+          \l {https://docs.oracle.com/database/121/LNOCI/oci04sql.htm#LNOCI16355}
+          {OCI_ATTR_PREFETCH_ROWS} to the specified value
+    \row
+      \li OCI_ATTR_PREFETCH_MEMORY
+      \li Sets the OCI attribute
+          \l {https://docs.oracle.com/database/121/LNOCI/oci04sql.htm#LNOCI16355}
+          {OCI_ATTR_PREFETCH_MEMORY} to the specified value
+    \row
+      \li OCI_AUTH_MODE
+      \li OCI_SYSDBA: authenticate for SYSDBA access\br
+          OCI_SYSOPER: authenticate for SYSOPER access\br
+          OCI_DEFAULT: authenticate with normal access\br
+          see \l {https://docs.oracle.com/cd/B10500_01/appdev.920/a96584/oci15r13.htm}
+          {OCISessionBegin} for more information about the access modes
+    \endtable
+
     \section3 How to Build the OCI Plugin on Unix and \macos
 
     All you need is the " - Basic" and "Instant Client
@@ -271,7 +385,7 @@
 
     \snippet code/doc_src_sql-driver.qdoc 8
 
-    When you run your application, you will also need to add the \c oci.lib
+    When you run your application, you will also need to add the \c oci.dll
     path to your \c PATH environment variable:
 
     \snippet code/doc_src_sql-driver.qdoc 9
@@ -322,17 +436,11 @@
     e.g., the SQLSTATEs.  Before setting this connect option, consult
     your ODBC documentation about behavior differences you can expect.
 
-    When using the SAP HANA database, the connection has to be
-    established using the option "SCROLLABLERESULT=TRUE", as the
-    HANA ODBC driver does not provide scrollable results by default, e.g.:
-
-    \snippet code/doc_src_sql-driver.cpp 39
-
     If you experience very slow access of the ODBC datasource, make sure
     that ODBC call tracing is turned off in the ODBC datasource manager.
 
     Some drivers do not support scrollable cursors. In that case, only
-    queries in forwardOnly mode can be used successfully.
+    queries in \l QSqlQuery::setForwardOnly() mode can be used successfully.
 
     \section3 ODBC Stored Procedure Support
 
@@ -349,12 +457,62 @@
     \section3 ODBC Unicode Support
 
     The QODBC Plugin will use the Unicode API if UNICODE is defined. On
-    Windows NT based systems, this is the default. Note that the ODBC
+    Windows based systems, this is the default. Note that the ODBC
     driver and the DBMS must also support Unicode.
 
     For the Oracle 9 ODBC driver (Windows), it is necessary to check
     "SQL_WCHAR support" in the ODBC driver manager otherwise Oracle
-    will convert all Unicode strings to local 8-bit.
+    will convert all Unicode strings to local 8-bit representation.
+
+    \section3 Connection options
+    The Qt ODBC plugin honors the following connection options:
+    \table
+    \header \li Attribute \li Possible value
+    \row
+      \li SQL_ATTR_ACCESS_MODE
+      \li SQL_MODE_READ_ONLY: open the database in read-only mode\br
+          SQL_MODE_READ_WRITE: open the database in read-write mode (default)
+    \row
+      \li SQL_ATTR_LOGIN_TIMEOUT
+      \li Number of seconds to wait for the database connection
+          during login (a value of 0 will wait forever)
+    \row
+      \li SQL_ATTR_CONNECTION_TIMEOUT
+      \li Number of seconds to wait for any request to the database
+          (a value of 0 will wait forever)
+    \row
+      \li SQL_ATTR_CURRENT_CATALOG
+      \li The catalog (database) to use for this connection
+    \row
+      \li SQL_ATTR_METADATA_ID
+      \li SQL_TRUE: the string argument of catalog functions are treated
+          as identifiers\br
+          SQL_FALSE: the string arguments of catalog functions are not
+          treated as identifiers
+    \row
+      \li SQL_ATTR_PACKET_SIZE
+      \li Specifies the network packet size in bytes
+    \row
+      \li SQL_ATTR_TRACEFILE
+      \li A string containing the name of the trace file
+    \row
+      \li SQL_ATTR_TRACE
+      \li SQL_OPT_TRACE_ON: Enable database query tracing\br
+          SQL_OPT_TRACE_OFF: Disable database query tracing (default)
+    \row
+      \li SQL_ATTR_CONNECTION_POOLING
+      \li Enable or disable connection pooling at the environment level.\br
+          SQL_CP_DEFAULT, SQL_CP_OFF: Connection pooling is turned off (default)\br
+          SQL_CP_ONE_PER_DRIVER: A single connection pool is supported for each driver\br
+          SQL_CP_ONE_PER_HENV: A single connection pool is supported for each environment
+    \row
+      \li SQL_ATTR_ODBC_VERSION
+      \li SQL_OV_ODBC3: The driver should act as a ODBC 3.x driver\br
+          SQL_OV_ODBC2: The driver should act as a ODBC 2.x driver (default)
+    \endtable
+    For more detailed information about the connect options please refer
+    to the \l {https://learn.microsoft.com/en-us/sql/odbc/reference/syntax/sqlsetconnectattr-function}
+    {SQLSetConnectAttr()} ODBC documentation.
 
     \section3 How to Build the ODBC Plugin on Unix and \macos
 
@@ -376,7 +534,7 @@
     \snippet code/doc_src_sql-driver.qdoc 12
 
     \target QPSQL
-    \section2 QPSQL for PostgreSQL (Version 7.3 and Above)
+    \section2 QPSQL for PostgreSQL (Version 7.3 and above)
 
     The QPSQL driver supports version 7.3 and higher of the PostgreSQL server.
 
@@ -453,6 +611,11 @@
 
     \snippet code/doc_src_sql-driver.qdoc 38
 
+    \section3 Connection options
+    The Qt PostgreSQL plugin honors all connection options specified in the
+    \l {https://www.postgresql.org/docs/current/libpq-connect.html#LIBPQ-PARAMKEYWORDS}
+    {connect()} PostgreSQL documentation.
+
     \section3 How to Build the QPSQL Plugin on Unix and \macos
 
     You need the PostgreSQL client library and headers installed.
@@ -479,7 +642,7 @@
     as the application executable.
 
     \target QDB2
-    \section2 QDB2 for IBM DB2 (Version 7.1 and Above)
+    \section2 QDB2 for IBM DB2 (Version 7.1 and above)
 
     The Qt DB2 plugin makes it possible to access IBM DB2 databases. It
     has been tested with IBM DB2 v7.1 and 7.2. You must install the IBM
@@ -492,6 +655,20 @@
     We suggest using a forward-only query when calling stored procedures
     in DB2 (see QSqlQuery::setForwardOnly()).
 
+    \section3 Connection options
+    The Qt IBM DB2 plugin honors the following connection options:
+    \table
+    \header \li Attribute \li Possible value
+    \row
+      \li SQL_ATTR_ACCESS_MODE
+      \li SQL_MODE_READ_ONLY: open the database in read-only mode\br
+          SQL_MODE_READ_WRITE: open the database in read-write mode (default)
+    \row
+      \li SQL_ATTR_LOGIN_TIMEOUT
+      \li Number of seconds to wait for the database connection
+          during login (max: 32767, a value of 0 will wait forever)
+    \endtable
+
     \section3 How to Build the QDB2 Plugin on Unix and \macos
 
     \snippet code/doc_src_sql-driver.qdoc 18
@@ -504,7 +681,7 @@
     \snippet code/doc_src_sql-driver.qdoc 20
 
     \target QSQLITE
-    \section2 QSQLITE for SQLite (Version 3 and Above)
+    \section2 QSQLITE for SQLite (Version 3 and above)
 
     The Qt SQLite plugin makes it possible to access SQLite
     databases. SQLite is an in-process database, which means that it
@@ -537,6 +714,40 @@
 
     You can find information about SQLite on \l{http://www.sqlite.org}.
 
+    \section3 Connection options
+    The Qt SQLite plugin honors the following connection options:
+    \table
+    \header \li Attribute \li Possible value
+    \row
+      \li QSQLITE_BUSY_TIMEOUT
+      \li Busy handler timeout in milliseconds (val <= 0: disabled),
+          see \l {https://www.sqlite.org/c3ref/busy_timeout.html}
+          {SQLite documentation} for more information
+    \row
+      \li QSQLITE_OPEN_READONLY
+      \li If set, the database is open in read-only mode which will fail
+          if no database exists. Otherwise the database will be opened in
+          read-write mode and created if the database file does not yet
+          exist (default)
+    \row
+      \li QSQLITE_OPEN_URI
+      \li The given filename is interpreted as an uri, see
+          \l {https://www.sqlite.org/c3ref/open.html} {SQLITE_OPEN_URI}
+    \row
+      \li QSQLITE_ENABLE_SHARED_CACHE
+      \li If set, the database is opened in
+          \l {https://www.sqlite.org/sharedcache.html} {shared cache mode},
+          otherwise in private cache mode
+    \row
+      \li QSQLITE_ENABLE_REGEXP
+      \li If set, the plugin defines a function 'regex' which can be used
+          in queries, QRegularExpression is used for evaluation of the regex query
+    \row
+      \li QSQLITE_NO_USE_EXTENDED_RESULT_CODES
+      \li Disables the usage of the \l {https://www.sqlite.org/c3ref/extended_result_codes.html}
+          {extended result code} feature in SQLite (for backwards compatibility)
+    \endtable
+
     \section3 How to Build the QSQLITE Plugin
 
     SQLite version 3 is included as a third-party library within Qt.
@@ -592,6 +803,47 @@
     Some versions of SQLite can be forced to write a specific file format by setting
     the \c{SQLITE_DEFAULT_FILE_FORMAT} define when building SQLite.
 
+    \target QMIMER
+    \section2 QMIMER for Mimer SQL version 11 and higher
+
+    The Qt Mimer SQL plugin makes it possible to work with the Mimer SQL RDBMS.
+    Mimer SQL provides small footprint, scalable and robust relational database
+    solutions that conform to international ISO SQL standards. Mimer SQL is available
+    on Windows, Linux, \macos, and OpenVMS as well as several embedded platforms like QNX, Android,
+    and embedded Linux.
+
+    Mimer SQL fully support Unicode. To work with Unicode data the column types National Character (NCHAR),
+    National Character Varying (NVARCHAR), or National Character Large Object (NCLOB) must be used.
+    For more information about Mimer SQL and unicode, see \l{https://developer.mimer.com/features/multilingual-support}
+
+    \section3 QMIMER Stored Procedure Support
+
+    Mimer SQL have stored procedures according to the SQL standard (PSM) and
+    the plugin fully support IN, OUT, INOUT parameters as well as resultset procedures.
+
+    Example stored procedure with INOUT and OUT parameters:
+
+    \snippet code/doc_src_sql-driver.qdoc 44
+
+    Source code to access the INOUT and OUT values:
+
+    \snippet code/doc_src_sql-driver.cpp 40
+
+    \section3 How to Build the QMIMER Plugin on Unix and \macos
+
+    You need the Mimer SQL header files and shared libraries. Get them by installing
+    any of the Mimer SQL variants found at \l{https://developer.mimer.com}.
+
+
+    \snippet code/doc_src_sql-driver.qdoc 31
+
+    \section3 How to Build the QMIMER Plugin on Windows
+
+    You need the Mimer SQL header files and shared libraries. Get them by installing
+    any of the Mimer SQL variants found at \l{https://developer.mimer.com}.
+
+    \snippet code/doc_src_sql-driver.qdoc 32
+
     \target QIBASE
     \section2 QIBASE for Borland InterBase
 
@@ -605,6 +857,17 @@
     database file, no matter whether it is stored locally or on another
     server.
 
+    \section3 Connection options
+    The Qt Borland InterBase plugin honors the following connection options:
+    \table
+    \header \li Attribute \li Possible value
+    \row
+      \li ISC_DPB_SQL_ROLE_NAME
+      \li Specifies the login role name
+    \endtable
+
+
+    \section3 How to Build the QIBASE Plugin
     \snippet code/doc_src_sql-driver.cpp 24
 
     You need the InterBase/Firebird development headers and libraries
@@ -614,20 +877,6 @@
     Edition are not allowed to link this plugin to the commercial editions of
     InterBase. Please use Firebird or the free edition of InterBase.
 
-    \section3 QIBASE Unicode Support and Text Encoding
-
-    By default the driver connects to the database using UNICODE_FSS. This can
-    be overridden by setting the ISC_DPB_LC_CTYPE parameter with
-    QSqlDatabase::setConnectOptions() before opening the connection.
-
-    \snippet code/doc_src_sql-driver.cpp 25
-
-    If Qt does not support the given text encoding the driver will issue a
-    warning message and connect to the database using UNICODE_FSS.
-
-    Note that if the text encoding set when connecting to the database is
-    not the same as in the database, problems with transliteration might arise.
-
     \section3 QIBASE Stored procedures
 
     InterBase/Firebird return OUT values as result set, so when calling stored
@@ -690,7 +939,7 @@
         Qt Creator, you can update the \c PATH environment variable in the
         \gui Run section of the \gui Project panel to include the path to
         the folder containing the client libraries.
-    \li Compile Qt with \c{QT_DEBUG_COMPONENT} defined to get very verbose
+    \li Compile Qt with \c{QT_DEBUG_PLUGINS} defined to get very verbose
         debug output when loading plugins.
     \endlist
 
diff --git a/src/sql/kernel/qsqlcachedresult.cpp b/src/sql/kernel/qsqlcachedresult.cpp
index 2e453fe7..3cc0b641 100644
--- a/src/sql/kernel/qsqlcachedresult.cpp
+++ b/src/sql/kernel/qsqlcachedresult.cpp
@@ -3,7 +3,6 @@
 
 #include "private/qsqlcachedresult_p.h"
 
-#include <qdatetime.h>
 #include <qvariant.h>
 #include <QtSql/private/qsqldriver_p.h>
 
@@ -21,7 +20,7 @@ QT_BEGIN_NAMESPACE
    to indicate that we are not interested in the actual values.
 */
 
-static const uint initial_cache_size = 128;
+static constexpr qsizetype initial_cache_size = 128;
 
 void QSqlCachedResultPrivate::cleanup()
 {
diff --git a/src/sql/kernel/qsqldatabase.cpp b/src/sql/kernel/qsqldatabase.cpp
index 0518bf8b..4a966dcf 100644
--- a/src/sql/kernel/qsqldatabase.cpp
+++ b/src/sql/kernel/qsqldatabase.cpp
@@ -6,17 +6,14 @@
 #include "qdebug.h"
 #include "qcoreapplication.h"
 #include "qreadwritelock.h"
-#include "qsqlresult.h"
 #include "qsqldriver.h"
 #include "qsqldriverplugin.h"
 #include "qsqlindex.h"
 #include "QtCore/qapplicationstatic.h"
 #include "private/qfactoryloader_p.h"
 #include "private/qsqlnulldriver_p.h"
-#include "qmutex.h"
 #include "qhash.h"
 #include "qthread.h"
-#include <stdlib.h>
 
 QT_BEGIN_NAMESPACE
 
@@ -25,17 +22,22 @@ using namespace Qt::StringLiterals;
 Q_GLOBAL_STATIC_WITH_ARGS(QFactoryLoader, loader,
                           (QSqlDriverFactoryInterface_iid, "/sqldrivers"_L1))
 
-const char *QSqlDatabase::defaultConnection = const_cast<char *>("qt_sql_default_connection");
+const char *QSqlDatabase::defaultConnection = "qt_sql_default_connection";
 
 class QConnectionDict: public QHash<QString, QSqlDatabase>
 {
 public:
-    inline bool contains_ts(const QString &key)
+    QSqlDatabase value_ts(const QString &key) const
+    {
+      QReadLocker locker(&lock);
+      return value(key);
+    }
+    bool contains_ts(const QString &key) const
     {
         QReadLocker locker(&lock);
         return contains(key);
     }
-    inline QStringList keys_ts() const
+    QStringList keys_ts() const
     {
         QReadLocker locker(&lock);
         return keys();
@@ -56,9 +58,8 @@ Q_APPLICATION_STATIC(DriverDict, qtDriverDict)
 class QSqlDatabasePrivate
 {
 public:
-    QSqlDatabasePrivate(QSqlDatabase *d, QSqlDriver *dr = nullptr):
+    QSqlDatabasePrivate(QSqlDriver *dr):
         ref(1),
-        q(d),
         driver(dr),
         port(-1)
     {
@@ -71,7 +72,6 @@ public:
     void disable();
 
     QAtomicInt ref;
-    QSqlDatabase *q;
     QSqlDriver* driver;
     QString dbname;
     QString uname;
@@ -94,7 +94,6 @@ public:
 
 QSqlDatabasePrivate::QSqlDatabasePrivate(const QSqlDatabasePrivate &other) : ref(1)
 {
-    q = other.q;
     dbname = other.dbname;
     uname = other.uname;
     pword = other.pword;
@@ -142,7 +141,7 @@ DriverDict &QSqlDatabasePrivate::driverDict()
 QSqlDatabasePrivate *QSqlDatabasePrivate::shared_null()
 {
     static QSqlNullDriver dr;
-    static QSqlDatabasePrivate n(nullptr, &dr);
+    static QSqlDatabasePrivate n(&dr);
     return &n;
 }
 
@@ -190,9 +189,7 @@ QSqlDatabase QSqlDatabasePrivate::database(const QString& name, bool open)
     const QConnectionDict *dict = dbDict();
     Q_ASSERT(dict);
 
-    dict->lock.lockForRead();
-    QSqlDatabase db = dict->value(name);
-    dict->lock.unlock();
+    QSqlDatabase db = dict->value_ts(name);
     if (!db.isValid())
         return db;
     if (db.driver()->thread() != QThread::currentThread()) {
@@ -214,7 +211,6 @@ QSqlDatabase QSqlDatabasePrivate::database(const QString& name, bool open)
 */
 void QSqlDatabasePrivate::copy(const QSqlDatabasePrivate *other)
 {
-    q = other->q;
     dbname = other->dbname;
     uname = other->uname;
     pword = other->pword;
@@ -391,9 +387,6 @@ void QSqlDatabasePrivate::disable()
         \li registers a custom-made driver
     \endtable
 
-    \note QSqlDatabase::exec() is deprecated. Use QSqlQuery::exec()
-    instead.
-
     \note When using transactions, you must start the
     transaction before you create your query.
 
@@ -501,20 +494,19 @@ QStringList QSqlDatabase::drivers()
 
     if (QFactoryLoader *fl = loader()) {
         typedef QMultiMap<int, QString> PluginKeyMap;
-        typedef PluginKeyMap::const_iterator PluginKeyMapConstIterator;
 
         const PluginKeyMap keyMap = fl->keyMap();
-        const PluginKeyMapConstIterator cend = keyMap.constEnd();
-        for (PluginKeyMapConstIterator it = keyMap.constBegin(); it != cend; ++it)
-            if (!list.contains(it.value()))
-                list << it.value();
+        for (const QString &val : keyMap) {
+            if (!list.contains(val))
+                list << val;
+        }
     }
 
     QReadLocker locker(&dbDict()->lock);
     const DriverDict &dict = QSqlDatabasePrivate::driverDict();
-    for (DriverDict::const_iterator i = dict.constBegin(); i != dict.constEnd(); ++i) {
-        if (!list.contains(i.key()))
-            list << i.key();
+    for (const auto &[k, _] : dict.asKeyValueRange()) {
+        if (!list.contains(k))
+            list << k;
     }
 
     return list;
@@ -585,6 +577,7 @@ QStringList QSqlDatabase::connectionNames()
     \row \li QODBC    \li ODBC Driver (includes Microsoft SQL Server)
     \row \li QPSQL    \li PostgreSQL Driver
     \row \li QSQLITE  \li SQLite version 3 or above
+    \row \li QMIMER  \li Mimer SQL 11 or above
     \endtable
 
     Additional third party drivers, including your own custom
@@ -594,8 +587,8 @@ QStringList QSqlDatabase::connectionNames()
 */
 
 QSqlDatabase::QSqlDatabase(const QString &type)
+   : d(new QSqlDatabasePrivate(nullptr))
 {
-    d = new QSqlDatabasePrivate(this);
     d->init(type);
 }
 
@@ -606,8 +599,8 @@ QSqlDatabase::QSqlDatabase(const QString &type)
 */
 
 QSqlDatabase::QSqlDatabase(QSqlDriver *driver)
+    : d(new QSqlDatabasePrivate(driver))
 {
-    d = new QSqlDatabasePrivate(this, driver);
 }
 
 /*!
@@ -616,8 +609,8 @@ QSqlDatabase::QSqlDatabase(QSqlDriver *driver)
     objects.
 */
 QSqlDatabase::QSqlDatabase()
+    : d(QSqlDatabasePrivate::shared_null())
 {
-    d = QSqlDatabasePrivate::shared_null();
     d->ref.ref();
 }
 
@@ -697,8 +690,9 @@ QSqlDatabase::~QSqlDatabase()
     lastError() is not affected.
 
     \sa QSqlQuery, lastError()
+    \deprecated [6.6] Use QSqlQuery::exec() instead.
 */
-
+#if QT_DEPRECATED_SINCE(6, 6)
 QSqlQuery QSqlDatabase::exec(const QString & query) const
 {
     QSqlQuery r(d->driver->createResult());
@@ -708,6 +702,7 @@ QSqlQuery QSqlDatabase::exec(const QString & query) const
     }
     return r;
 }
+#endif
 
 /*!
     Opens the database connection using the current connection
@@ -1101,98 +1096,8 @@ QSqlRecord QSqlDatabase::record(const QString& tablename) const
 
     The format of the \a options string is a semicolon separated list
     of option names or option=value pairs. The options depend on the
-    database client used:
-
-    \table
-    \header \li ODBC \li MySQL \li PostgreSQL
-    \row
-
-    \li
-    \list
-    \li SQL_ATTR_ACCESS_MODE
-    \li SQL_ATTR_LOGIN_TIMEOUT
-    \li SQL_ATTR_CONNECTION_TIMEOUT
-    \li SQL_ATTR_CURRENT_CATALOG
-    \li SQL_ATTR_METADATA_ID
-    \li SQL_ATTR_PACKET_SIZE
-    \li SQL_ATTR_TRACEFILE
-    \li SQL_ATTR_TRACE
-    \li SQL_ATTR_CONNECTION_POOLING
-    \li SQL_ATTR_ODBC_VERSION
-    \endlist
-
-    \li
-    \list
-    \li CLIENT_COMPRESS
-    \li CLIENT_FOUND_ROWS
-    \li CLIENT_IGNORE_SPACE
-    \li CLIENT_ODBC
-    \li CLIENT_NO_SCHEMA
-    \li CLIENT_INTERACTIVE
-    \li UNIX_SOCKET
-    \li MYSQL_OPT_RECONNECT
-    \li MYSQL_OPT_CONNECT_TIMEOUT
-    \li MYSQL_OPT_READ_TIMEOUT
-    \li MYSQL_OPT_WRITE_TIMEOUT
-    \li MYSQL_OPT_LOCAL_INFILE
-    \li MYSQL_OPT_SSL_KEY
-    \li MYSQL_OPT_SSL_CERT
-    \li MYSQL_OPT_SSL_CA
-    \li MYSQL_OPT_SSL_CAPATH
-    \li MYSQL_OPT_SSL_CIPHER
-    \li MYSQL_OPT_SSL_CRL
-    \li MYSQL_OPT_SSL_CRLPATH
-    \li SSL_KEY (deprecated, use MYSQL_OPT_SSL_KEY)
-    \li SSL_CERT (deprecated, use MYSQL_OPT_SSL_CERT)
-    \li SSL_CA (deprecated, use MYSQL_OPT_SSL_CA)
-    \li SSL_CAPATH (deprecated, use MYSQL_OPT_SSL_CAPATH)
-    \li SSL_CIPHER (deprecated, use MYSQL_OPT_SSL_CIPHER)
-    \endlist
-
-    \li
-    \list
-    \li connect_timeout
-    \li options
-    \li tty
-    \li requiressl
-    \li service
-    \endlist
-
-    \header \li DB2 \li OCI
-    \row
-
-    \li
-    \list
-    \li SQL_ATTR_ACCESS_MODE
-    \li SQL_ATTR_LOGIN_TIMEOUT
-    \endlist
-
-    \li
-    \list
-    \li OCI_ATTR_PREFETCH_ROWS
-    \li OCI_ATTR_PREFETCH_MEMORY
-    \endlist
-
-    \header \li SQLite \li Interbase
-    \row
-
-    \li
-    \list
-    \li QSQLITE_BUSY_TIMEOUT
-    \li QSQLITE_OPEN_READONLY
-    \li QSQLITE_OPEN_URI
-    \li QSQLITE_ENABLE_SHARED_CACHE
-    \li QSQLITE_ENABLE_REGEXP
-    \li QSQLITE_NO_USE_EXTENDED_RESULT_CODES
-    \endlist
-
-    \li
-    \list
-    \li ISC_DPB_LC_CTYPE
-    \li ISC_DPB_SQL_ROLE_NAME
-    \endlist
-
-    \endtable
+    database client used and are described for each plugin in the
+    \l{sql-driver.html}{SQL Database Drivers} page.
 
     Examples:
     \snippet code/src_sql_kernel_qsqldatabase.cpp 4
@@ -1301,6 +1206,11 @@ bool QSqlDatabase::isDriverAvailable(const QString& name)
     \li sqlite *connection
     \li \c qsql_sqlite.cpp
     \row
+    \li QMIMER
+    \li QMimerSQLDriver
+    \li MimerSession *connection
+    \li \c qsql_mimer.cpp
+    \row
     \li QIBASE
     \li QIBaseDriver
     \li isc_db_handle connection
@@ -1344,6 +1254,8 @@ bool QSqlDatabase::isValid() const
 
     \note The new connection has not been opened. Before using the new
     connection, you must call open().
+
+    \reentrant
 */
 QSqlDatabase QSqlDatabase::cloneDatabase(const QSqlDatabase &other, const QString &connectionName)
 {
@@ -1378,16 +1290,7 @@ QSqlDatabase QSqlDatabase::cloneDatabase(const QString &other, const QString &co
     const QConnectionDict *dict = dbDict();
     Q_ASSERT(dict);
 
-    dict->lock.lockForRead();
-    QSqlDatabase otherDb = dict->value(other);
-    dict->lock.unlock();
-    if (!otherDb.isValid())
-        return QSqlDatabase();
-
-    QSqlDatabase db(otherDb.driverName());
-    db.d->copy(otherDb.d);
-    QSqlDatabasePrivate::addDatabase(db, connectionName);
-    return db;
+    return cloneDatabase(dict->value_ts(other), connectionName);
 }
 
 /*!
diff --git a/src/sql/kernel/qsqldatabase.h b/src/sql/kernel/qsqldatabase.h
index 789f3e0e..a70a25dc 100644
--- a/src/sql/kernel/qsqldatabase.h
+++ b/src/sql/kernel/qsqldatabase.h
@@ -48,7 +48,10 @@ public:
     QStringList tables(QSql::TableType type = QSql::Tables) const;
     QSqlIndex primaryIndex(const QString& tablename) const;
     QSqlRecord record(const QString& tablename) const;
+#if QT_DEPRECATED_SINCE(6, 6)
+    QT_DEPRECATED_VERSION_X_6_6("Use QSqlQuery::exec() instead.")
     QSqlQuery exec(const QString& query = QString()) const;
+#endif
     QSqlError lastError() const;
     bool isValid() const;
 
diff --git a/src/sql/kernel/qsqldriver.cpp b/src/sql/kernel/qsqldriver.cpp
index 7c8c329d..97f2951c 100644
--- a/src/sql/kernel/qsqldriver.cpp
+++ b/src/sql/kernel/qsqldriver.cpp
@@ -7,8 +7,8 @@
 #include "qsqlerror.h"
 #include "qsqlfield.h"
 #include "qsqlindex.h"
-#include "private/qobject_p.h"
 #include "private/qsqldriver_p.h"
+#include "private/qtools_p.h"
 
 #include <limits.h>
 
@@ -215,6 +215,7 @@ bool QSqlDriver::isOpenError() const
     \value SQLite
     \value Interbase
     \value DB2
+    \value [since 6.6] MimerSQL
 */
 
 /*!
@@ -446,12 +447,11 @@ QString QSqlDriver::sqlStatement(StatementType type, const QString &tableName,
 {
     const auto tableNameString = tableName.isEmpty() ? QString()
                                     : prepareIdentifier(tableName, QSqlDriver::TableName, this);
-    int i;
     QString s;
     s.reserve(128);
     switch (type) {
     case SelectStatement:
-        for (i = 0; i < rec.count(); ++i) {
+        for (qsizetype i = 0; i < rec.count(); ++i) {
             if (rec.isGenerated(i))
                 s.append(prepareIdentifier(rec.fieldName(i), QSqlDriver::FieldName, this)).append(", "_L1);
         }
@@ -464,7 +464,7 @@ QString QSqlDriver::sqlStatement(StatementType type, const QString &tableName,
     {
         const QString tableNamePrefix = tableNameString.isEmpty()
                                             ? QString() : tableNameString + u'.';
-        for (int i = 0; i < rec.count(); ++i) {
+        for (qsizetype i = 0; i < rec.count(); ++i) {
             if (!rec.isGenerated(i))
                 continue;
             s.append(s.isEmpty() ? "WHERE "_L1 : " AND "_L1);
@@ -481,7 +481,7 @@ QString QSqlDriver::sqlStatement(StatementType type, const QString &tableName,
     }
     case UpdateStatement:
         s = s + "UPDATE "_L1 + tableNameString + " SET "_L1;
-        for (i = 0; i < rec.count(); ++i) {
+        for (qsizetype i = 0; i < rec.count(); ++i) {
             if (!rec.isGenerated(i))
                 continue;
             s.append(prepareIdentifier(rec.fieldName(i), QSqlDriver::FieldName, this)).append(u'=');
@@ -502,7 +502,7 @@ QString QSqlDriver::sqlStatement(StatementType type, const QString &tableName,
     case InsertStatement: {
         s = s + "INSERT INTO "_L1 + tableNameString + " ("_L1;
         QString vals;
-        for (i = 0; i < rec.count(); ++i) {
+        for (qsizetype i = 0; i < rec.count(); ++i) {
             if (!rec.isGenerated(i))
                 continue;
             s.append(prepareIdentifier(rec.fieldName(i), QSqlDriver::FieldName, this)).append(", "_L1);
@@ -613,15 +613,15 @@ QString QSqlDriver::formatValue(const QSqlField &field, bool trimStrings) const
             break;
         case QMetaType::QByteArray : {
             if (hasFeature(BLOB)) {
-                QByteArray ba = field.value().toByteArray();
-                QString res;
-                static const char hexchars[] = "0123456789abcdef";
-                for (int i = 0; i < ba.size(); ++i) {
-                    uchar s = (uchar) ba[i];
-                    res += QLatin1Char(hexchars[s >> 4]);
-                    res += QLatin1Char(hexchars[s & 0x0f]);
+                const QByteArray ba = field.value().toByteArray();
+                r.reserve((ba.size() + 1) * 2);
+                r += u'\'';
+                for (const char c : ba) {
+                    const uchar s = uchar(c);
+                    r += QLatin1Char(QtMiscUtils::toHexLower(s >> 4));
+                    r += QLatin1Char(QtMiscUtils::toHexLower(s & 0x0f));
                 }
-                r = u'\'' + res +  u'\'';
+                r += u'\'';
                 break;
             }
         }
diff --git a/src/sql/kernel/qsqldriver.h b/src/sql/kernel/qsqldriver.h
index 9de4ac41..2e4cd041 100644
--- a/src/sql/kernel/qsqldriver.h
+++ b/src/sql/kernel/qsqldriver.h
@@ -50,7 +50,8 @@ public:
         Sybase,
         SQLite,
         Interbase,
-        DB2
+        DB2,
+        MimerSQL,
     };
 
     explicit QSqlDriver(QObject *parent = nullptr);
diff --git a/src/sql/kernel/qsqlerror.cpp b/src/sql/kernel/qsqlerror.cpp
index a7a061b3..a52f209d 100644
--- a/src/sql/kernel/qsqlerror.cpp
+++ b/src/sql/kernel/qsqlerror.cpp
@@ -19,7 +19,7 @@ QDebug operator<<(QDebug dbg, const QSqlError &s)
 }
 #endif
 
-class QSqlErrorPrivate
+class QSqlErrorPrivate : public QSharedData
 {
 public:
     QString driverError;
@@ -27,7 +27,7 @@ public:
     QSqlError::ErrorType errorType;
     QString errorCode;
 };
-
+QT_DEFINE_QESDP_SPECIALIZATION_DTOR(QSqlErrorPrivate)
 
 /*!
     \class QSqlError
@@ -88,9 +88,6 @@ public:
     Constructs an error containing the driver error text \a
     driverText, the database-specific error text \a databaseText, the
     type \a type and the error code \a code.
-
-    \note DB2: It is possible for DB2 to report more than one error code.
-    When this happens, \c ; is used as separator between the error codes.
 */
 QSqlError::QSqlError(const QString &driverText, const QString &databaseText,
                      ErrorType type, const QString &code)
@@ -107,44 +104,37 @@ QSqlError::QSqlError(const QString &driverText, const QString &databaseText,
     Creates a copy of \a other.
 */
 QSqlError::QSqlError(const QSqlError &other)
-    : d(new QSqlErrorPrivate(*other.d))
-{
-}
+    = default;
 
 /*!
     Assigns the \a other error's values to this error.
 */
 
 QSqlError &QSqlError::operator=(const QSqlError &other)
-{
-    if (&other == this)
-        return *this;
-    if (d && other.d)
-        *d = *other.d;
-    else if (d)
-        *d = QSqlErrorPrivate();
-    else if (other.d)
-        d = new QSqlErrorPrivate(*other.d);
-    return *this;
-}
+    = default;
+
 
 /*!
-    Compare the \a other error's values to this error and returns \c true, if it equal.
+    Compare the \a other error's type() and nativeErrorCode()
+    to this error and returns \c true, if it equal.
 */
 
 bool QSqlError::operator==(const QSqlError &other) const
 {
-    return (d->errorType == other.d->errorType);
+    return (d->errorType == other.d->errorType &&
+            d->errorCode == other.d->errorCode);
 }
 
 
 /*!
-    Compare the \a other error's values to this error and returns \c true if it is not equal.
+    Compare the \a other error's type() and nativeErrorCode()
+    to this error and returns \c true if it is not equal.
 */
 
 bool QSqlError::operator!=(const QSqlError &other) const
 {
-    return (d->errorType != other.d->errorType);
+    return (d->errorType != other.d->errorType ||
+            d->errorCode != other.d->errorCode);
 }
 
 
@@ -153,9 +143,7 @@ bool QSqlError::operator!=(const QSqlError &other) const
 */
 
 QSqlError::~QSqlError()
-{
-    delete d;
-}
+    = default;
 
 /*!
     Returns the text of the error as reported by the driver. This may
@@ -192,6 +180,9 @@ QSqlError::ErrorType QSqlError::type() const
 /*!
     Returns the database-specific error code, or an empty string if
     it cannot be determined.
+    \note Some drivers (like DB2 or ODBC) may return more than one
+    error code. When this happens, \c ; is used as separator between
+    the error codes.
 */
 
 QString QSqlError::nativeErrorCode() const
diff --git a/src/sql/kernel/qsqlerror.h b/src/sql/kernel/qsqlerror.h
index 2a139d33..24f2921f 100644
--- a/src/sql/kernel/qsqlerror.h
+++ b/src/sql/kernel/qsqlerror.h
@@ -5,11 +5,13 @@
 #define QSQLERROR_H
 
 #include <QtSql/qtsqlglobal.h>
+#include <QtCore/qshareddata.h>
 #include <QtCore/qstring.h>
 
 QT_BEGIN_NAMESPACE
 
 class QSqlErrorPrivate;
+QT_DECLARE_QESDP_SPECIALIZATION_DTOR_WITH_EXPORT(QSqlErrorPrivate, Q_SQL_EXPORT)
 
 class Q_SQL_EXPORT QSqlError
 {
@@ -26,15 +28,15 @@ public:
               ErrorType type = NoError,
               const QString &errorCode = QString());
     QSqlError(const QSqlError &other);
-    QSqlError(QSqlError &&other) noexcept : d(other.d) { other.d = nullptr; }
+    QSqlError(QSqlError &&other) noexcept = default;
     QSqlError& operator=(const QSqlError &other);
-    QSqlError &operator=(QSqlError &&other) noexcept { swap(other); return *this; }
+    QT_MOVE_ASSIGNMENT_OPERATOR_IMPL_VIA_PURE_SWAP(QSqlError)
     ~QSqlError();
 
     bool operator==(const QSqlError &other) const;
     bool operator!=(const QSqlError &other) const;
 
-    void swap(QSqlError &other) noexcept { qt_ptr_swap(d, other.d); }
+    void swap(QSqlError &other) noexcept { d.swap(other.d); }
 
     QString driverText() const;
     QString databaseText() const;
@@ -44,7 +46,7 @@ public:
     bool isValid() const;
 
 private:
-    QSqlErrorPrivate *d = nullptr;
+    QExplicitlySharedDataPointer<QSqlErrorPrivate> d;
 };
 
 Q_DECLARE_SHARED(QSqlError)
diff --git a/src/sql/kernel/qsqlfield.cpp b/src/sql/kernel/qsqlfield.cpp
index a86a7ca6..e89c07c0 100644
--- a/src/sql/kernel/qsqlfield.cpp
+++ b/src/sql/kernel/qsqlfield.cpp
@@ -2,36 +2,20 @@
 // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
 
 #include "qsqlfield.h"
-#include "qatomic.h"
 #include "qdebug.h"
 
 QT_BEGIN_NAMESPACE
 
-class QSqlFieldPrivate
+class QSqlFieldPrivate : public QSharedData
 {
 public:
     QSqlFieldPrivate(const QString &name,
                      QMetaType type, const QString &tableName) :
-        ref(1), nm(name), table(tableName), def(QVariant()), type(type),
+        nm(name), table(tableName), def(QVariant()), type(type),
         req(QSqlField::Unknown), len(-1), prec(-1), tp(-1),
         ro(false), gen(true), autoval(false)
     {}
 
-    QSqlFieldPrivate(const QSqlFieldPrivate &other)
-        : ref(1),
-          nm(other.nm),
-          table(other.table),
-          def(other.def),
-          type(other.type),
-          req(other.req),
-          len(other.len),
-          prec(other.prec),
-          tp(other.tp),
-          ro(other.ro),
-          gen(other.gen),
-          autoval(other.autoval)
-    {}
-
     bool operator==(const QSqlFieldPrivate& other) const
     {
         return (nm == other.nm
@@ -46,7 +30,6 @@ public:
                 && autoval == other.autoval);
     }
 
-    QAtomicInt ref;
     QString nm;
     QString table;
     QVariant def;
@@ -59,6 +42,7 @@ public:
     bool gen: 1;
     bool autoval: 1;
 };
+QT_DEFINE_QESDP_SPECIALIZATION_DTOR(QSqlFieldPrivate)
 
 
 /*!
@@ -130,6 +114,14 @@ public:
         setGenerated(), setReadOnly()
 */
 
+/*!
+    \fn void QSqlField::swap(QSqlField &other)
+    \since 6.6
+
+    Swaps this field with \a other. This function is very fast and
+    never fails.
+*/
+
 /*!
     \since 6.0
 
@@ -141,33 +133,24 @@ public:
         setGenerated(), setReadOnly()
 */
 QSqlField::QSqlField(const QString &fieldName, QMetaType type, const QString &table)
+    : val(QVariant(type, nullptr)),
+      d(new QSqlFieldPrivate(fieldName, type, table))
 {
-    d = new QSqlFieldPrivate(fieldName, type, table);
-    val = QVariant(QMetaType(type), nullptr);
 }
 
 /*!
     Constructs a copy of \a other.
 */
 
-QSqlField::QSqlField(const QSqlField& other)
-{
-    d = other.d;
-    d->ref.ref();
-    val = other.val;
-}
+QSqlField::QSqlField(const QSqlField &other)
+    = default;
 
 /*!
     Sets the field equal to \a other.
 */
 
 QSqlField& QSqlField::operator=(const QSqlField& other)
-{
-    qAtomicAssign(d, other.d);
-    val = other.val;
-    return *this;
-}
-
+    = default;
 
 /*! \fn bool QSqlField::operator!=(const QSqlField &other) const
     Returns \c true if the field is unequal to \a other; otherwise returns
@@ -189,10 +172,7 @@ bool QSqlField::operator==(const QSqlField& other) const
 */
 
 QSqlField::~QSqlField()
-{
-    if (!d->ref.deref())
-        delete d;
-}
+    = default;
 
 /*!
     Sets the required status of this field to \a required.
@@ -426,7 +406,7 @@ bool QSqlField::isNull() const
 */
 void QSqlField::detach()
 {
-    qAtomicDetach(d);
+    d.detach();
 }
 
 /*!
diff --git a/src/sql/kernel/qsqlfield.h b/src/sql/kernel/qsqlfield.h
index 67aed772..d58bda7d 100644
--- a/src/sql/kernel/qsqlfield.h
+++ b/src/sql/kernel/qsqlfield.h
@@ -5,6 +5,7 @@
 #define QSQLFIELD_H
 
 #include <QtSql/qtsqlglobal.h>
+#include <QtCore/qshareddata.h>
 #include <QtCore/qvariant.h>
 #include <QtCore/qstring.h>
 
@@ -12,6 +13,7 @@ QT_BEGIN_NAMESPACE
 
 
 class QSqlFieldPrivate;
+QT_DECLARE_QESDP_SPECIALIZATION_DTOR_WITH_EXPORT(QSqlFieldPrivate, Q_SQL_EXPORT)
 
 class Q_SQL_EXPORT QSqlField
 {
@@ -22,9 +24,14 @@ public:
 
     QSqlField(const QSqlField& other);
     QSqlField& operator=(const QSqlField& other);
+    QSqlField(QSqlField &&other) noexcept = default;
+    QT_MOVE_ASSIGNMENT_OPERATOR_IMPL_VIA_MOVE_AND_SWAP(QSqlField)
+    ~QSqlField();
+
+    void swap(QSqlField &other) noexcept { val.swap(other.val); d.swap(other.d); }
+
     bool operator==(const QSqlField& other) const;
     inline bool operator!=(const QSqlField &other) const { return !operator==(other); }
-    ~QSqlField();
 
     void setValue(const QVariant& value);
     inline QVariant value() const
@@ -76,10 +83,13 @@ public:
 
 private:
     void detach();
+    // ### Qt7: move to private class
     QVariant val;
-    QSqlFieldPrivate* d;
+    QExplicitlySharedDataPointer<QSqlFieldPrivate> d;
 };
 
+Q_DECLARE_SHARED(QSqlField)
+
 #ifndef QT_NO_DEBUG_STREAM
 Q_SQL_EXPORT QDebug operator<<(QDebug, const QSqlField &);
 #endif
diff --git a/src/sql/kernel/qsqlindex.cpp b/src/sql/kernel/qsqlindex.cpp
index 06aab348..77af6f0f 100644
--- a/src/sql/kernel/qsqlindex.cpp
+++ b/src/sql/kernel/qsqlindex.cpp
@@ -4,7 +4,6 @@
 #include "qsqlindex.h"
 
 #include "qsqlfield.h"
-#include "qstringlist.h"
 
 QT_BEGIN_NAMESPACE
 
@@ -42,6 +41,25 @@ QSqlIndex::QSqlIndex(const QSqlIndex& other)
 {
 }
 
+/*! \fn QSqlIndex::QSqlIndex(QSqlIndex &&other)
+    Move-constructs a new QSqlIndex from \a other.
+
+    \note The moved-from object \a other is placed in a
+    partially-formed state, in which the only valid operations are
+    destruction and assignment of a new value.
+
+    \since 6.6
+*/
+/*! \fn QSqlIndex& QSqlIndex::operator=(QSqlIndex &&other)
+    Move-assigns \a other to this QSqlIndex instance.
+
+    \note The moved-from object \a other is placed in a
+    partially-formed state, in which the only valid operations are
+    destruction and assignment of a new value.
+
+    \since 6.6
+*/
+
 /*!
     Sets the index equal to \a other.
 */
@@ -55,6 +73,7 @@ QSqlIndex& QSqlIndex::operator=(const QSqlIndex& other)
     return *this;
 }
 
+
 /*!
     Destroys the object and frees any allocated resources.
 */
diff --git a/src/sql/kernel/qsqlindex.h b/src/sql/kernel/qsqlindex.h
index 08ef14b6..f011e643 100644
--- a/src/sql/kernel/qsqlindex.h
+++ b/src/sql/kernel/qsqlindex.h
@@ -17,8 +17,18 @@ class Q_SQL_EXPORT QSqlIndex : public QSqlRecord
 public:
     explicit QSqlIndex(const QString &cursorName = QString(), const QString &name = QString());
     QSqlIndex(const QSqlIndex &other);
+    QSqlIndex(QSqlIndex &&other) noexcept = default;
     ~QSqlIndex();
     QSqlIndex &operator=(const QSqlIndex &other);
+    QT_MOVE_ASSIGNMENT_OPERATOR_IMPL_VIA_PURE_SWAP(QSqlIndex)
+
+    void swap(QSqlIndex &other) noexcept {
+        QSqlRecord::swap(other);
+        cursor.swap(other.cursor);
+        nm.swap(other.nm);
+        sorts.swap(other.sorts);
+    };
+
     void setCursorName(const QString &cursorName);
     inline QString cursorName() const { return cursor; }
     void setName(const QString& name);
@@ -32,11 +42,14 @@ public:
 
 private:
     QString createField(int i, const QString& prefix, bool verbose) const;
+    // ### Qt7: move to d-ptr
     QString cursor;
     QString nm;
     QList<bool> sorts;
 };
 
+Q_DECLARE_SHARED(QSqlIndex)
+
 QT_END_NAMESPACE
 
 #endif // QSQLINDEX_H
diff --git a/src/sql/kernel/qsqlquery.cpp b/src/sql/kernel/qsqlquery.cpp
index 5991e3df..f93ca168 100644
--- a/src/sql/kernel/qsqlquery.cpp
+++ b/src/sql/kernel/qsqlquery.cpp
@@ -7,14 +7,16 @@
 
 #include "qatomic.h"
 #include "qdebug.h"
-#include "qelapsedtimer.h"
-#include "qmap.h"
 #include "qsqlrecord.h"
 #include "qsqlresult.h"
 #include "qsqldriver.h"
 #include "qsqldatabase.h"
 #include "private/qsqlnulldriver_p.h"
 
+#ifdef QT_DEBUG_SQL
+#include "qelapsedtimer.h"
+#endif
+
 QT_BEGIN_NAMESPACE
 
 class QSqlQueryPrivate
@@ -334,7 +336,7 @@ bool QSqlQuery::isNull(int field) const
 
 bool QSqlQuery::isNull(const QString &name) const
 {
-    int index = d->sqlResult->record().indexOf(name);
+    qsizetype index = d->sqlResult->record().indexOf(name);
     if (index > -1)
         return isNull(index);
     qWarning("QSqlQuery::isNull: unknown field name '%s'", qPrintable(name));
@@ -445,7 +447,7 @@ QVariant QSqlQuery::value(int index) const
 
 QVariant QSqlQuery::value(const QString& name) const
 {
-    int index = d->sqlResult->record().indexOf(name);
+    qsizetype index = d->sqlResult->record().indexOf(name);
     if (index > -1)
         return value(index);
     qWarning("QSqlQuery::value: unknown field name '%s'", qPrintable(name));
@@ -918,7 +920,7 @@ QSqlRecord QSqlQuery::record() const
     QSqlRecord rec = d->sqlResult->record();
 
     if (isValid()) {
-        for (int i = 0; i < rec.count(); ++i)
+        for (qsizetype i = 0; i < rec.count(); ++i)
             rec.setValue(i, value(i));
     }
     return rec;
@@ -1136,6 +1138,7 @@ QVariant QSqlQuery::boundValue(const QString& placeholder) const
 
 /*!
   Returns the value for the placeholder at position \a pos.
+  \sa boundValues()
 */
 QVariant QSqlQuery::boundValue(int pos) const
 {
@@ -1154,7 +1157,7 @@ QVariant QSqlQuery::boundValue(int pos) const
 
   \snippet sqldatabase/sqldatabase.cpp 14
 
-  \sa boundValue(), bindValue(), addBindValue()
+  \sa boundValue(), bindValue(), addBindValue(), boundValueNames()
 */
 
 QVariantList QSqlQuery::boundValues() const
@@ -1163,6 +1166,36 @@ QVariantList QSqlQuery::boundValues() const
     return values;
 }
 
+/*!
+  \since 6.6
+
+  Returns the names of all bound values.
+
+  The order of the list is in binding order, irrespective of whether
+  named or positional binding is used.
+
+  \sa boundValues(), boundValueName()
+*/
+QStringList QSqlQuery::boundValueNames() const
+{
+    return d->sqlResult->boundValueNames();
+}
+
+/*!
+  \since 6.6
+
+  Returns the bound value name at position \a pos.
+
+  The order of the list is in binding order, irrespective of whether
+  named or positional binding is used.
+
+  \sa boundValueNames()
+*/
+QString QSqlQuery::boundValueName(int pos) const
+{
+    return d->sqlResult->boundValueName(pos);
+}
+
 /*!
   Returns the last query that was successfully executed.
 
@@ -1189,7 +1222,7 @@ QString QSqlQuery::executedQuery() const
 
   For MySQL databases the row's auto-increment field will be returned.
 
-  \note For this function to work in PSQL, the table table must
+  \note For this function to work in PSQL, the table must
   contain OIDs, which may not have been created by default.  Check the
   \c default_with_oids configuration variable to be sure.
 
diff --git a/src/sql/kernel/qsqlquery.h b/src/sql/kernel/qsqlquery.h
index ad389fee..9d019d5c 100644
--- a/src/sql/kernel/qsqlquery.h
+++ b/src/sql/kernel/qsqlquery.h
@@ -89,6 +89,8 @@ public:
     QVariant boundValue(const QString& placeholder) const;
     QVariant boundValue(int pos) const;
     QVariantList boundValues() const;
+    QStringList boundValueNames() const;
+    QString boundValueName(int pos) const;
     QString executedQuery() const;
     QVariant lastInsertId() const;
     void finish();
diff --git a/src/sql/kernel/qsqlrecord.cpp b/src/sql/kernel/qsqlrecord.cpp
index 74f42b2e..e4d2c96c 100644
--- a/src/sql/kernel/qsqlrecord.cpp
+++ b/src/sql/kernel/qsqlrecord.cpp
@@ -8,42 +8,20 @@
 #include "qlist.h"
 #include "qsqlfield.h"
 #include "qstring.h"
-#include "qstringlist.h"
 
 QT_BEGIN_NAMESPACE
 
-class QSqlRecordPrivate
+class QSqlRecordPrivate : public QSharedData
 {
 public:
-    QSqlRecordPrivate();
-    QSqlRecordPrivate(const QSqlRecordPrivate &other);
-
-    inline bool contains(int index) { return index >= 0 && index < fields.size(); }
-    QString createField(int index, const QString &prefix) const;
+    inline bool contains(qsizetype index) const
+    {
+      return index >= 0 && index < fields.size();
+    }
 
     QList<QSqlField> fields;
-    QAtomicInt ref;
 };
-
-QSqlRecordPrivate::QSqlRecordPrivate() : ref(1)
-{
-}
-
-QSqlRecordPrivate::QSqlRecordPrivate(const QSqlRecordPrivate &other): fields(other.fields), ref(1)
-{
-}
-
-/*! \internal
-    Just for compat
-*/
-QString QSqlRecordPrivate::createField(int index, const QString &prefix) const
-{
-    QString f;
-    if (!prefix.isEmpty())
-        f = prefix + u'.';
-    f += fields.at(index).name();
-    return f;
-}
+QT_DEFINE_QESDP_SPECIALIZATION_DTOR(QSqlRecordPrivate)
 
 /*!
     \class QSqlRecord
@@ -86,8 +64,8 @@ QString QSqlRecordPrivate::createField(int index, const QString &prefix) const
 */
 
 QSqlRecord::QSqlRecord()
+  : d(new QSqlRecordPrivate)
 {
-    d = new QSqlRecordPrivate();
 }
 
 /*!
@@ -98,10 +76,38 @@ QSqlRecord::QSqlRecord()
 */
 
 QSqlRecord::QSqlRecord(const QSqlRecord& other)
-{
-    d = other.d;
-    d->ref.ref();
-}
+    = default;
+
+/*!
+    \fn QSqlRecord::QSqlRecord(QSqlRecord &&other)
+    \since 6.6
+
+    Move-constructs a new QSqlRecord from \a other.
+
+    \note The moved-from object \a other is placed in a partially-formed state,
+    in which the only valid operations are destruction and assignment of a new
+    value.
+*/
+
+/*!
+    \fn QSqlRecord &QSqlRecord::operator=(QSqlRecord &&other)
+    \since 6.6
+
+    Move-assigns \a other to this QSqlRecord instance.
+
+    \note The moved-from object \a other is placed in a partially-formed state,
+    in which the only valid operations are destruction and assignment of a new
+    value.
+*/
+
+/*!
+    \fn void QSqlRecord::swap(QSqlRecord &other)
+    \since 6.6
+
+    Swaps SQL record \a other with this SQL record. This operation is very fast
+    and never fails.
+*/
+
 
 /*!
     Sets the record equal to \a other.
@@ -111,20 +117,15 @@ QSqlRecord::QSqlRecord(const QSqlRecord& other)
 */
 
 QSqlRecord& QSqlRecord::operator=(const QSqlRecord& other)
-{
-    qAtomicAssign(d, other.d);
-    return *this;
-}
+    = default;
 
 /*!
     Destroys the object and frees any allocated resources.
 */
 
 QSqlRecord::~QSqlRecord()
-{
-    if (!d->ref.deref())
-        delete d;
-}
+    = default;
+
 
 /*!
     \fn bool QSqlRecord::operator!=(const QSqlRecord &other) const
@@ -337,9 +338,8 @@ bool QSqlRecord::contains(const QString& name) const
 void QSqlRecord::clearValues()
 {
     detach();
-    int count = d->fields.size();
-    for (int i = 0; i < count; ++i)
-        d->fields[i].clear();
+    for (QSqlField &f : d->fields)
+        f.clear();
 }
 
 /*!
@@ -487,7 +487,7 @@ void QSqlRecord::setValue(const QString& name, const QVariant& val)
 */
 void QSqlRecord::detach()
 {
-    qAtomicDetach(d);
+    d.detach();
 }
 
 #ifndef QT_NO_DEBUG_STREAM
diff --git a/src/sql/kernel/qsqlrecord.h b/src/sql/kernel/qsqlrecord.h
index cb88f1c6..f9812fdc 100644
--- a/src/sql/kernel/qsqlrecord.h
+++ b/src/sql/kernel/qsqlrecord.h
@@ -5,6 +5,7 @@
 #define QSQLRECORD_H
 
 #include <QtSql/qtsqlglobal.h>
+#include <QtCore/qshareddata.h>
 #include <QtCore/qstring.h>
 
 QT_BEGIN_NAMESPACE
@@ -13,15 +14,20 @@ QT_BEGIN_NAMESPACE
 class QSqlField;
 class QVariant;
 class QSqlRecordPrivate;
+QT_DECLARE_QESDP_SPECIALIZATION_DTOR_WITH_EXPORT(QSqlRecordPrivate, Q_SQL_EXPORT)
 
 class Q_SQL_EXPORT QSqlRecord
 {
 public:
     QSqlRecord();
     QSqlRecord(const QSqlRecord& other);
+    QSqlRecord(QSqlRecord &&other) noexcept = default;
     QSqlRecord& operator=(const QSqlRecord& other);
+    QT_MOVE_ASSIGNMENT_OPERATOR_IMPL_VIA_MOVE_AND_SWAP(QSqlRecord)
     ~QSqlRecord();
 
+    void swap(QSqlRecord &other) noexcept { d.swap(other.d); }
+
     bool operator==(const QSqlRecord &other) const;
     inline bool operator!=(const QSqlRecord &other) const { return !operator==(other); }
 
@@ -60,9 +66,11 @@ public:
 
 private:
     void detach();
-    QSqlRecordPrivate* d;
+    QExplicitlySharedDataPointer<QSqlRecordPrivate> d;
 };
 
+Q_DECLARE_SHARED(QSqlRecord)
+
 #ifndef QT_NO_DEBUG_STREAM
 Q_SQL_EXPORT QDebug operator<<(QDebug, const QSqlRecord &);
 #endif
diff --git a/src/sql/kernel/qsqlresult.cpp b/src/sql/kernel/qsqlresult.cpp
index d58d82e0..aa3608fb 100644
--- a/src/sql/kernel/qsqlresult.cpp
+++ b/src/sql/kernel/qsqlresult.cpp
@@ -3,9 +3,7 @@
 
 #include "qsqlresult.h"
 
-#include "qhash.h"
 #include "qlist.h"
-#include "qpointer.h"
 #include "qsqldriver.h"
 #include "qsqlerror.h"
 #include "qsqlfield.h"
@@ -15,7 +13,6 @@
 #include "qvariant.h"
 #include "qdatetime.h"
 #include "private/qsqldriver_p.h"
-#include <QDebug>
 
 QT_BEGIN_NAMESPACE
 
@@ -26,7 +23,7 @@ QString QSqlResultPrivate::holderAt(int index) const
     return holders.size() > index ? holders.at(index).holderName : fieldSerial(index);
 }
 
-QString QSqlResultPrivate::fieldSerial(int i) const
+QString QSqlResultPrivate::fieldSerial(qsizetype i) const
 {
     return QString(":%1"_L1).arg(i);
 }
@@ -40,15 +37,15 @@ static bool qIsAlnum(QChar ch)
 
 QString QSqlResultPrivate::positionalToNamedBinding(const QString &query) const
 {
-    int n = query.size();
+    const qsizetype n = query.size();
 
     QString result;
     result.reserve(n * 5 / 4);
     QChar closingQuote;
-    int count = 0;
+    qsizetype count = 0;
     bool ignoreBraces = (sqldriver->dbmsType() == QSqlDriver::PostgreSQL);
 
-    for (int i = 0; i < n; ++i) {
+    for (qsizetype i = 0; i < n; ++i) {
         QChar ch = query.at(i);
         if (!closingQuote.isNull()) {
             if (ch == closingQuote) {
@@ -87,13 +84,13 @@ QString QSqlResultPrivate::namedToPositionalBinding(const QString &query)
         query.trimmed().startsWith("EXECUTE BLOCK"_L1, Qt::CaseInsensitive))
         return query;
 
-    int n = query.size();
+    const qsizetype n = query.size();
 
     QString result;
     result.reserve(n);
     QChar closingQuote;
     int count = 0;
-    int i = 0;
+    qsizetype i = 0;
     bool ignoreBraces = (sqldriver->dbmsType() == QSqlDriver::PostgreSQL);
 
     while (i < n) {
@@ -627,12 +624,9 @@ bool QSqlResult::exec()
     // fake preparation - just replace the placeholders..
     QString query = lastQuery();
     if (d->binds == NamedBinding) {
-        int i;
-        QVariant val;
-        QString holder;
-        for (i = d->holders.size() - 1; i >= 0; --i) {
-            holder = d->holders.at(i).holderName;
-            val = d->values.value(d->indexes.value(holder).value(0,-1));
+        for (qsizetype i = d->holders.size() - 1; i >= 0; --i) {
+            const QString &holder = d->holders.at(i).holderName;
+            const QVariant val = d->values.value(d->indexes.value(holder).value(0,-1));
             QSqlField f(""_L1, val.metaType());
             if (QSqlResultPrivate::isVariantNull(val))
                 f.setValue(QVariant());
@@ -642,21 +636,18 @@ bool QSqlResult::exec()
                                    holder.size(), driver()->formatValue(f));
         }
     } else {
-        QString val;
         qsizetype i = 0;
-        int idx = 0;
-        for (idx = 0; idx < d->values.size(); ++idx) {
+        for (const QVariant &var : std::as_const(d->values)) {
             i = query.indexOf(u'?', i);
             if (i == -1)
                 continue;
-            QVariant var = d->values.value(idx);
             QSqlField f(""_L1, var.metaType());
             if (QSqlResultPrivate::isVariantNull(var))
                 f.clear();
             else
                 f.setValue(var);
-            val = driver()->formatValue(f);
-            query = query.replace(i, 1, driver()->formatValue(f));
+            const QString val = driver()->formatValue(f);
+            query = query.replace(i, 1, val);
             i += val.size();
         }
     }
@@ -793,17 +784,32 @@ int QSqlResult::boundValueCount() const
 }
 
 /*!
-    Returns a vector of the result's bound values for the current
+    Returns a list of the result's bound values for the current
     record (row).
 
     \sa boundValueCount()
 */
-QList<QVariant> &QSqlResult::boundValues() const
+QVariantList QSqlResult::boundValues(QT6_IMPL_NEW_OVERLOAD) const
 {
     Q_D(const QSqlResult);
-    return const_cast<QSqlResultPrivate *>(d)->values;
+    return d->values;
 }
 
+/*!
+    \overload
+
+    Returns a mutable reference to the list of the result's bound values
+    for the current record (row).
+
+    \sa boundValueCount()
+*/
+QVariantList &QSqlResult::boundValues(QT6_IMPL_NEW_OVERLOAD)
+{
+    Q_D(QSqlResult);
+    return d->values;
+}
+
+
 /*!
     Returns the binding syntax used by prepared queries.
 */
@@ -846,11 +852,25 @@ void QSqlResult::resetBindCount()
     d->resetBindCount();
 }
 
+/*!
+    Returns the names of all bound values.
+
+    \sa boundValue(), boundValueName()
+ */
+QStringList QSqlResult::boundValueNames() const
+{
+    Q_D(const QSqlResult);
+    QList<QString> ret;
+    for (const QHolder &holder : std::as_const(d->holders))
+        ret.push_back(holder.holderName);
+    return ret;
+}
+
 /*!
     Returns the name of the bound value at position \a index in the
     current record (row).
 
-    \sa boundValue()
+    \sa boundValue(), boundValueNames()
 */
 QString QSqlResult::boundValueName(int index) const
 {
@@ -948,11 +968,13 @@ bool QSqlResult::execBatch(bool arrayBind)
     Q_UNUSED(arrayBind);
     Q_D(QSqlResult);
 
-    QList<QVariant> values = d->values;
+    const QList<QVariant> values = d->values;
     if (values.size() == 0)
         return false;
-    for (int i = 0; i < values.at(0).toList().size(); ++i) {
-        for (int j = 0; j < values.size(); ++j)
+    const qsizetype batchCount = values.at(0).toList().size();
+    const qsizetype valueCount = values.size();
+    for (qsizetype i = 0; i < batchCount; ++i) {
+        for (qsizetype j = 0; j < valueCount; ++j)
             bindValue(j, values.at(j).toList().at(i), QSql::In);
         if (!exec())
             return false;
diff --git a/src/sql/kernel/qsqlresult.h b/src/sql/kernel/qsqlresult.h
index 2d157cbe..1135caf7 100644
--- a/src/sql/kernel/qsqlresult.h
+++ b/src/sql/kernel/qsqlresult.h
@@ -69,8 +69,14 @@ protected:
     QSql::ParamType bindValueType(const QString& placeholder) const;
     QSql::ParamType bindValueType(int pos) const;
     int boundValueCount() const;
+#if QT_SQL_REMOVED_SINCE(6, 6)
     QList<QVariant> &boundValues() const;
+#endif
+    QVariantList &boundValues(QT6_DECL_NEW_OVERLOAD);
+    QVariantList boundValues(QT6_DECL_NEW_OVERLOAD) const;
+
     QString executedQuery() const;
+    QStringList boundValueNames() const;
     QString boundValueName(int pos) const;
     void clear();
     bool hasOutValues() const;
diff --git a/src/sql/kernel/qsqlresult_p.h b/src/sql/kernel/qsqlresult_p.h
index 7e84283b..1e8e8a30 100644
--- a/src/sql/kernel/qsqlresult_p.h
+++ b/src/sql/kernel/qsqlresult_p.h
@@ -30,11 +30,11 @@ QT_BEGIN_NAMESPACE
     inline Class##Private* drv_d_func()  { return !sqldriver ? nullptr : reinterpret_cast<Class *>(static_cast<QSqlDriver*>(sqldriver))->d_func(); }
 
 struct QHolder {
-    QHolder(const QString &hldr = QString(), int index = -1): holderName(hldr), holderPos(index) { }
+    QHolder(const QString &hldr = QString(), qsizetype index = -1): holderName(hldr), holderPos(index) { }
     bool operator==(const QHolder &h) const { return h.holderPos == holderPos && h.holderName == holderName; }
     bool operator!=(const QHolder &h) const { return h.holderPos != holderPos || h.holderName != holderName; }
     QString holderName;
-    int holderPos;
+    qsizetype holderPos;
 };
 
 class Q_SQL_EXPORT QSqlResultPrivate
@@ -72,7 +72,7 @@ public:
         clearIndex();
     }
 
-    virtual QString fieldSerial(int) const;
+    virtual QString fieldSerial(qsizetype) const;
     QString positionalToNamedBinding(const QString &query) const;
     QString namedToPositionalBinding(const QString &query);
     QString holderAt(int index) const;
diff --git a/src/sql/models/qsqlrelationaltablemodel.cpp b/src/sql/models/qsqlrelationaltablemodel.cpp
index 88a08516..acd20b98 100644
--- a/src/sql/models/qsqlrelationaltablemodel.cpp
+++ b/src/sql/models/qsqlrelationaltablemodel.cpp
@@ -559,6 +559,7 @@ QString QSqlRelationalTableModel::selectStatement() const
                 QString alias = QString::fromLatin1("%1_%2_%3")
                                       .arg(relTableName, displayColumn, QString::number(fieldNames.value(fieldList[i])));
                 alias.truncate(d->db.driver()->maximumIdentifierLength(QSqlDriver::FieldName));
+                alias = d->db.driver()->escapeIdentifier(alias, QSqlDriver::FieldName);
                 displayTableField = SqlrTm::as(displayTableField, alias);
                 --fieldNames[fieldList[i]];
             }
diff --git a/src/testlib/CMakeLists.txt b/src/testlib/CMakeLists.txt
index 6cdb8f33..8b0b06e6 100644
--- a/src/testlib/CMakeLists.txt
+++ b/src/testlib/CMakeLists.txt
@@ -73,6 +73,11 @@ qt_internal_add_module(Test
     GENERATE_PRIVATE_CPP_EXPORTS
 )
 
+if(TARGET Gui)
+    set_property(TARGET Test
+        APPEND PROPERTY _qt_internal_sync_headers_deps Gui_sync_headers)
+endif()
+
 ## Scopes:
 #####################################################################
 
diff --git a/src/testlib/qbenchmarkperfevents.cpp b/src/testlib/qbenchmarkperfevents.cpp
index 1b9101e8..c161879a 100644
--- a/src/testlib/qbenchmarkperfevents.cpp
+++ b/src/testlib/qbenchmarkperfevents.cpp
@@ -108,7 +108,8 @@ static QList<PerfEvent> defaultCounters()
 static int perf_event_open(perf_event_attr *attr, pid_t pid, int cpu, int group_fd, unsigned long flags)
 {
 #ifdef SYS_perf_event_open
-    return syscall(SYS_perf_event_open, attr, pid, cpu, group_fd, flags);
+    // syscall() returns long, but perf_event_open() is used to get a file descriptor
+    return int(syscall(SYS_perf_event_open, attr, pid, cpu, group_fd, flags));
 #else
     Q_UNUSED(attr);
     Q_UNUSED(pid);
diff --git a/src/testlib/qplaintestlogger.cpp b/src/testlib/qplaintestlogger.cpp
index 6284c210..4bafacb1 100644
--- a/src/testlib/qplaintestlogger.cpp
+++ b/src/testlib/qplaintestlogger.cpp
@@ -236,7 +236,7 @@ namespace QTest {
 
     QPlainTestLogger implements basic logging of test results.
 
-    The format is Qt-specific and aims to be be easy to read.
+    The format is Qt-specific and aims to be easy to read.
 */
 
 void QPlainTestLogger::outputMessage(const char *str)
diff --git a/src/testlib/qsignalspy.h b/src/testlib/qsignalspy.h
index 61192cd9..b72c3b4b 100644
--- a/src/testlib/qsignalspy.h
+++ b/src/testlib/qsignalspy.h
@@ -94,12 +94,15 @@ public:
     inline bool isValid() const { return !sig.isEmpty(); }
     inline QByteArray signal() const { return sig; }
 
-    bool wait(int timeout = 5000)
+    bool wait(int timeout)
+    { return wait(std::chrono::milliseconds{timeout}); }
+
+    bool wait(std::chrono::milliseconds timeout = std::chrono::seconds{5})
     {
         Q_ASSERT(!m_waiting);
         const qsizetype origCount = size();
         m_waiting = true;
-        m_loop.enterLoopMSecs(timeout);
+        m_loop.enterLoop(timeout);
         m_waiting = false;
         return size() > origCount;
     }
diff --git a/src/testlib/qsignalspy.qdoc b/src/testlib/qsignalspy.qdoc
index 85b91589..e9c213f7 100644
--- a/src/testlib/qsignalspy.qdoc
+++ b/src/testlib/qsignalspy.qdoc
@@ -110,15 +110,35 @@
     \internal
 */
 
-/*! \fn QSignalSpy::wait(int timeout)
-
+/*! \fn bool QSignalSpy::wait(int timeout)
     \since 5.0
 
-    Starts an event loop that runs until the given signal is received.
-    Optionally the event loop can return earlier on a \a timeout (in milliseconds).
+    This is an overloaded function, equivalent passing \a timeout to the
+    chrono overload:
+    \code
+    wait(std::chrono::milliseconds{timeout});
+    \endcode
 
-    Returns \c true if the signal was emitted at least once in \a timeout milliseconds, otherwise returns \c false.
+    Returns \c true if the signal was emitted at least once in \a timeout,
+    otherwise returns \c false.
+*/
+
+/*! \fn bool QSignalSpy::wait(std::chrono::milliseconds timeout)
+    \since 6.6
+
+    Starts an event loop that runs until the given signal is received
+    or \a timeout has passed, whichever happens first.
+
+    \a timeout is any valid std::chrono::duration (std::chrono::seconds,
+    std::chrono::milliseconds ...etc).
+
+    Returns \c true if the signal was emitted at least once in \a timeout,
+    otherwise returns \c false.
 
     Example:
-    \snippet code/doc_src_qsignalspy.cpp 5
+    \code
+        using namespace std::chrono_literals;
+        QSignalSpy spy(object, signal);
+        spy.wait(2s);
+    \endcode
 */
diff --git a/src/testlib/qtaptestlogger.cpp b/src/testlib/qtaptestlogger.cpp
index 2c87c15d..76f0ba0e 100644
--- a/src/testlib/qtaptestlogger.cpp
+++ b/src/testlib/qtaptestlogger.cpp
@@ -302,8 +302,8 @@ void QTapTestLogger::addIncident(IncidentTypes type, const char *description,
 
                 static const QRegularExpression compareOpRegex(
                             u"^(?<message>.*)\n"
-                            "\\s*Left\\s+\\((?<actualexpression>.*)\\)\\s*: (?<actual>.*)\n"
-                            "\\s*Right\\s+\\((?<expectedexpresssion>.*)\\)\\s*: "
+                            "\\s*Computed\\s+\\((?<actualexpression>.*)\\)\\s*: (?<actual>.*)\n"
+                            "\\s*Baseline\\s+\\((?<expectedexpresssion>.*)\\)\\s*: "
                             "(?<expected>.*)$"_s);
 
                 const QString descriptionString = QString::fromUtf8(description);
diff --git a/src/testlib/qtest.h b/src/testlib/qtest.h
index f87995e0..73278791 100644
--- a/src/testlib/qtest.h
+++ b/src/testlib/qtest.h
@@ -356,6 +356,19 @@ template<> inline char *toString(const QCborMap &m)
     return Internal::QCborValueFormatter::format(m);
 }
 
+template <typename Rep, typename Period> char *toString(std::chrono::duration<Rep, Period> dur)
+{
+    QString r;
+    QDebug d(&r);
+    d.nospace() << qSetRealNumberPrecision(9) << dur;
+    if constexpr (Period::num != 1 || Period::den != 1) {
+        // include the equivalent value in seconds, in parentheses
+        using namespace std::chrono;
+        d << " (" << duration_cast<duration<qreal>>(dur).count() << "s)";
+    }
+    return qstrdup(std::move(r).toUtf8().constData());
+}
+
 template <typename T1, typename T2>
 inline char *toString(const std::pair<T1, T2> &pair)
 {
@@ -628,7 +641,7 @@ void qRegister##TestObject() \
         QTEST_SET_MAIN_SOURCE_PATH \
         return QTest::qExec(&tc, argc, argv); \
     }; \
-    QTest::qRegisterTestCase(BATCHED_TEST_NAME, runTest); \
+    QTest::qRegisterTestCase(QStringLiteral(BATCHED_TEST_NAME), runTest); \
 } \
 \
 Q_CONSTRUCTOR_FUNCTION(qRegister##TestObject)
diff --git a/src/testlib/qtestcase.cpp b/src/testlib/qtestcase.cpp
index 72b340c1..fa0042f5 100644
--- a/src/testlib/qtestcase.cpp
+++ b/src/testlib/qtestcase.cpp
@@ -707,7 +707,7 @@ Q_TESTLIB_EXPORT void qtest_qParseArgs(int argc, const char *const argv[], bool
     QTest::testFunctions.clear();
     QTest::testTags.clear();
 
-#if defined(Q_OS_MAC) && defined(HAVE_XCTEST)
+#if defined(Q_OS_DARWIN) && defined(HAVE_XCTEST)
     if (QXcodeTestLogger::canLogTestProgress())
         logFormat = QTestLog::XCTest;
 #endif
diff --git a/src/testlib/qtestcase.h b/src/testlib/qtestcase.h
index 004380f5..7eea2b7b 100644
--- a/src/testlib/qtestcase.h
+++ b/src/testlib/qtestcase.h
@@ -75,12 +75,12 @@ do { \
     } \
 } while (false)
 
-#define QCOMPARE_EQ(lhs, rhs) QCOMPARE_OP_IMPL(lhs, rhs, ==, Equal)
-#define QCOMPARE_NE(lhs, rhs) QCOMPARE_OP_IMPL(lhs, rhs, !=, NotEqual)
-#define QCOMPARE_LT(lhs, rhs) QCOMPARE_OP_IMPL(lhs, rhs, <, LessThan)
-#define QCOMPARE_LE(lhs, rhs) QCOMPARE_OP_IMPL(lhs, rhs, <=, LessThanOrEqual)
-#define QCOMPARE_GT(lhs, rhs) QCOMPARE_OP_IMPL(lhs, rhs, >, GreaterThan)
-#define QCOMPARE_GE(lhs, rhs) QCOMPARE_OP_IMPL(lhs, rhs, >=, GreaterThanOrEqual)
+#define QCOMPARE_EQ(computed, baseline) QCOMPARE_OP_IMPL(computed, baseline, ==, Equal)
+#define QCOMPARE_NE(computed, baseline) QCOMPARE_OP_IMPL(computed, baseline, !=, NotEqual)
+#define QCOMPARE_LT(computed, baseline) QCOMPARE_OP_IMPL(computed, baseline, <, LessThan)
+#define QCOMPARE_LE(computed, baseline) QCOMPARE_OP_IMPL(computed, baseline, <=, LessThanOrEqual)
+#define QCOMPARE_GT(computed, baseline) QCOMPARE_OP_IMPL(computed, baseline, >, GreaterThan)
+#define QCOMPARE_GE(computed, baseline) QCOMPARE_OP_IMPL(computed, baseline, >=, GreaterThanOrEqual)
 
 #ifndef QT_NO_EXCEPTIONS
 
@@ -209,41 +209,41 @@ do { \
 
 #define QTRY_COMPARE(expr, expected) QTRY_COMPARE_WITH_TIMEOUT(expr, expected, 5000)
 
-#define QTRY_COMPARE_OP_WITH_TIMEOUT_IMPL(left, right, op, opId, timeout) \
+#define QTRY_COMPARE_OP_WITH_TIMEOUT_IMPL(computed, baseline, op, opId, timeout) \
 do { \
-    QTRY_IMPL(((left) op (right)), timeout) \
-    QCOMPARE_OP_IMPL(left, right, op, opId); \
+    QTRY_IMPL(((computed) op (baseline)), timeout) \
+    QCOMPARE_OP_IMPL(computed, baseline, op, opId); \
 } while (false)
 
-#define QTRY_COMPARE_EQ_WITH_TIMEOUT(left, right, timeout) \
-    QTRY_COMPARE_OP_WITH_TIMEOUT_IMPL(left, right, ==, Equal, timeout)
+#define QTRY_COMPARE_EQ_WITH_TIMEOUT(computed, baseline, timeout) \
+    QTRY_COMPARE_OP_WITH_TIMEOUT_IMPL(computed, baseline, ==, Equal, timeout)
 
-#define QTRY_COMPARE_EQ(left, right) QTRY_COMPARE_EQ_WITH_TIMEOUT(left, right, 5000)
+#define QTRY_COMPARE_EQ(computed, baseline) QTRY_COMPARE_EQ_WITH_TIMEOUT(computed, baseline, 5000)
 
-#define QTRY_COMPARE_NE_WITH_TIMEOUT(left, right, timeout) \
-    QTRY_COMPARE_OP_WITH_TIMEOUT_IMPL(left, right, !=, NotEqual, timeout)
+#define QTRY_COMPARE_NE_WITH_TIMEOUT(computed, baseline, timeout) \
+    QTRY_COMPARE_OP_WITH_TIMEOUT_IMPL(computed, baseline, !=, NotEqual, timeout)
 
-#define QTRY_COMPARE_NE(left, right) QTRY_COMPARE_NE_WITH_TIMEOUT(left, right, 5000)
+#define QTRY_COMPARE_NE(computed, baseline) QTRY_COMPARE_NE_WITH_TIMEOUT(computed, baseline, 5000)
 
-#define QTRY_COMPARE_LT_WITH_TIMEOUT(left, right, timeout) \
-    QTRY_COMPARE_OP_WITH_TIMEOUT_IMPL(left, right, <, LessThan, timeout)
+#define QTRY_COMPARE_LT_WITH_TIMEOUT(computed, baseline, timeout) \
+    QTRY_COMPARE_OP_WITH_TIMEOUT_IMPL(computed, baseline, <, LessThan, timeout)
 
-#define QTRY_COMPARE_LT(left, right) QTRY_COMPARE_LT_WITH_TIMEOUT(left, right, 5000)
+#define QTRY_COMPARE_LT(computed, baseline) QTRY_COMPARE_LT_WITH_TIMEOUT(computed, baseline, 5000)
 
-#define QTRY_COMPARE_LE_WITH_TIMEOUT(left, right, timeout) \
-    QTRY_COMPARE_OP_WITH_TIMEOUT_IMPL(left, right, <=, LessThanOrEqual, timeout)
+#define QTRY_COMPARE_LE_WITH_TIMEOUT(computed, baseline, timeout) \
+    QTRY_COMPARE_OP_WITH_TIMEOUT_IMPL(computed, baseline, <=, LessThanOrEqual, timeout)
 
-#define QTRY_COMPARE_LE(left, right) QTRY_COMPARE_LE_WITH_TIMEOUT(left, right, 5000)
+#define QTRY_COMPARE_LE(computed, baseline) QTRY_COMPARE_LE_WITH_TIMEOUT(computed, baseline, 5000)
 
-#define QTRY_COMPARE_GT_WITH_TIMEOUT(left, right, timeout) \
-    QTRY_COMPARE_OP_WITH_TIMEOUT_IMPL(left, right, >, GreaterThan, timeout)
+#define QTRY_COMPARE_GT_WITH_TIMEOUT(computed, baseline, timeout) \
+    QTRY_COMPARE_OP_WITH_TIMEOUT_IMPL(computed, baseline, >, GreaterThan, timeout)
 
-#define QTRY_COMPARE_GT(left, right) QTRY_COMPARE_GT_WITH_TIMEOUT(left, right, 5000)
+#define QTRY_COMPARE_GT(computed, baseline) QTRY_COMPARE_GT_WITH_TIMEOUT(computed, baseline, 5000)
 
-#define QTRY_COMPARE_GE_WITH_TIMEOUT(left, right, timeout) \
-    QTRY_COMPARE_OP_WITH_TIMEOUT_IMPL(left, right, >=, GreaterThanOrEqual, timeout)
+#define QTRY_COMPARE_GE_WITH_TIMEOUT(computed, baseline, timeout) \
+    QTRY_COMPARE_OP_WITH_TIMEOUT_IMPL(computed, baseline, >=, GreaterThanOrEqual, timeout)
 
-#define QTRY_COMPARE_GE(left, right) QTRY_COMPARE_GE_WITH_TIMEOUT(left, right, 5000)
+#define QTRY_COMPARE_GE(computed, baseline) QTRY_COMPARE_GE_WITH_TIMEOUT(computed, baseline, 5000)
 
 #define QSKIP_INTERNAL(statement) \
 do {\
@@ -361,6 +361,9 @@ namespace QTest
     template <class... Types>
     inline char *toString(const std::tuple<Types...> &tuple);
 
+    template <typename Rep, typename Period>
+    inline char *toString(std::chrono::duration<Rep, Period> duration);
+
     Q_TESTLIB_EXPORT char *toHexRepresentation(const char *ba, qsizetype length);
     Q_TESTLIB_EXPORT char *toPrettyCString(const char *unicode, qsizetype length);
     Q_TESTLIB_EXPORT char *toPrettyUnicode(QStringView string);
diff --git a/src/testlib/qtestcase.qdoc b/src/testlib/qtestcase.qdoc
index dd47398e..823214a8 100644
--- a/src/testlib/qtestcase.qdoc
+++ b/src/testlib/qtestcase.qdoc
@@ -137,18 +137,18 @@
        QCOMPARE_GT(), QCOMPARE_GE()
 */
 
-/*! \macro QCOMPARE_EQ(left, right)
+/*! \macro QCOMPARE_EQ(computed, baseline)
     \since 6.4
 
     \relates QTest
 
-    The QCOMPARE_EQ() macro checks that \a left is equal to \a right using
+    The QCOMPARE_EQ() macro checks that \a computed is equal to \a baseline using
     the equality operator. If that is true, execution continues. If not, a
     failure is recorded in the test log and the test function returns without
     attempting any later checks.
 
-    It is generally similar to calling \c {QVERIFY(left == right);}
-    but prints a formatted error message reporting \a left and \a right argument
+    It is generally similar to calling \c {QVERIFY(computed == baseline);}
+    but prints a formatted error message reporting \a computed and \a baseline argument
     expressions and values in case of failure.
 
     \include qtestcase.qdoc macro-usage-limitation
@@ -164,18 +164,18 @@
         QCOMPARE_GE()
 */
 
-/*! \macro QCOMPARE_NE(left, right)
+/*! \macro QCOMPARE_NE(computed, baseline)
     \since 6.4
 
     \relates QTest
 
-    The QCOMPARE_NE() macro checks that \a left is not equal to \a right using
+    The QCOMPARE_NE() macro checks that \a computed is not equal to \a baseline using
     the inequality operator. If that is true, execution continues. If not, a
     failure is recorded in the test log and the test function returns without
     attempting any later checks.
 
-    It is generally similar to calling \c {QVERIFY(left != right);}
-    but prints a formatted error message reporting \a left and \a right argument
+    It is generally similar to calling \c {QVERIFY(computed != baseline);}
+    but prints a formatted error message reporting \a computed and \a baseline argument
     expressions and values in case of failure.
 
     \include qtestcase.qdoc macro-usage-limitation
@@ -185,18 +185,18 @@
     \sa QCOMPARE_EQ(), QCOMPARE_LT(), QCOMPARE_LE(), QCOMPARE_GT(), QCOMPARE_GE()
 */
 
-/*! \macro QCOMPARE_LT(left, right)
+/*! \macro QCOMPARE_LT(computed, baseline)
     \since 6.4
 
     \relates QTest
 
-    The QCOMPARE_LT() macro checks that \a left is less than \a right using the
+    The QCOMPARE_LT() macro checks that \a computed is less than \a baseline using the
     less-than operator. If that is true, execution continues. If not, a failure
     is recorded in the test log and the test function returns without attempting
     any later checks.
 
-    It is generally similar to calling \c {QVERIFY(left < right);}
-    but prints a formatted error message reporting \a left and \a right argument
+    It is generally similar to calling \c {QVERIFY(computed < baseline);}
+    but prints a formatted error message reporting \a computed and \a baseline argument
     expressions and values in case of failure.
 
     \include qtestcase.qdoc macro-usage-limitation
@@ -206,18 +206,18 @@
     \sa QCOMPARE_EQ(), QCOMPARE_NE(), QCOMPARE_LE(), QCOMPARE_GT(), QCOMPARE_GE()
 */
 
-/*! \macro QCOMPARE_LE(left, right)
+/*! \macro QCOMPARE_LE(computed, baseline)
     \since 6.4
 
     \relates QTest
 
-    The QCOMPARE_LE() macro checks that \a left is at most \a right using the
+    The QCOMPARE_LE() macro checks that \a computed is at most \a baseline using the
     less-than-or-equal-to operator. If that is true, execution continues. If
     not, a failure is recorded in the test log and the test function returns
     without attempting any later checks.
 
-    It is generally similar to calling \c {QVERIFY(left <= right);}
-    but prints a formatted error message reporting \a left and \a right argument
+    It is generally similar to calling \c {QVERIFY(computed <= baseline);}
+    but prints a formatted error message reporting \a computed and \a baseline argument
     expressions and values in case of failure.
 
     \include qtestcase.qdoc macro-usage-limitation
@@ -227,18 +227,18 @@
     \sa QCOMPARE_EQ(), QCOMPARE_NE(), QCOMPARE_LT(), QCOMPARE_GT(), QCOMPARE_GE()
 */
 
-/*! \macro QCOMPARE_GT(left, right)
+/*! \macro QCOMPARE_GT(computed, baseline)
     \since 6.4
 
     \relates QTest
 
-    The QCOMPARE_GT() macro checks that \a left is greater than \a right using
+    The QCOMPARE_GT() macro checks that \a computed is greater than \a baseline using
     the greater-than operator. If that is true, execution continues. If not, a
     failure is recorded in the test log and the test function returns without
     attempting any later checks.
 
-    It is generally similar to calling \c {QVERIFY(left > right);}
-    but prints a formatted error message reporting \a left and \a right argument
+    It is generally similar to calling \c {QVERIFY(computed > baseline);}
+    but prints a formatted error message reporting \a computed and \a baseline argument
     expressions and values in case of failure.
 
     \include qtestcase.qdoc macro-usage-limitation
@@ -248,18 +248,18 @@
     \sa QCOMPARE_EQ(), QCOMPARE_NE(), QCOMPARE_LT(), QCOMPARE_LE(), QCOMPARE_GE()
 */
 
-/*! \macro QCOMPARE_GE(left, right)
+/*! \macro QCOMPARE_GE(computed, baseline)
     \since 6.4
 
     \relates QTest
 
-    The QCOMPARE_GE() macro checks that \a left is at least \a right using the
+    The QCOMPARE_GE() macro checks that \a computed is at least \a baseline using the
     greater-than-or-equal-to operator. If that is true, execution continues. If
     not, a failure is recorded in the test log and the test function returns
     without attempting any later checks.
 
-    It is generally similar to calling \c {QVERIFY(left >= right);}
-    but prints a formatted error message reporting \a left and \a right argument
+    It is generally similar to calling \c {QVERIFY(computed >= baseline);}
+    but prints a formatted error message reporting \a computed and \a baseline argument
     expressions and values in case of failure.
 
     \include qtestcase.qdoc macro-usage-limitation
@@ -455,12 +455,12 @@
    QEXPECT_FAIL()
 */
 
-/*! \macro QTRY_COMPARE_EQ_WITH_TIMEOUT(left, right, timeout)
+/*! \macro QTRY_COMPARE_EQ_WITH_TIMEOUT(computed, baseline, timeout)
     \since 6.4
     \relates QTest
 
     This macro is similar to QCOMPARE_EQ(), but performs the comparison of the
-    \a left and \a right values repeatedly, until either the comparison returns
+    \a computed and \a baseline values repeatedly, until either the comparison returns
     \c true or the \a timeout (in milliseconds) is reached. Between each
     comparison, events will be processed. If the timeout is reached, a failure
     is recorded in the test log and the test won't be executed further.
@@ -470,11 +470,11 @@
     \sa QCOMPARE_EQ(), QTRY_COMPARE_EQ()
 */
 
-/*! \macro QTRY_COMPARE_EQ(left, right)
+/*! \macro QTRY_COMPARE_EQ(computed, baseline)
     \since 6.4
     \relates QTest
 
-    Performs comparison of \a left and \a right values by invoking
+    Performs comparison of \a computed and \a baseline values by invoking
     QTRY_COMPARE_EQ_WITH_TIMEOUT with a timeout of five seconds.
 
     \include qtestcase.qdoc macro-usage-limitation
@@ -482,12 +482,12 @@
     \sa QCOMPARE_EQ(), QTRY_COMPARE_EQ_WITH_TIMEOUT()
 */
 
-/*! \macro QTRY_COMPARE_NE_WITH_TIMEOUT(left, right, timeout)
+/*! \macro QTRY_COMPARE_NE_WITH_TIMEOUT(computed, baseline, timeout)
     \since 6.4
     \relates QTest
 
     This macro is similar to QCOMPARE_NE(), but performs the comparison of the
-    \a left and \a right values repeatedly, until either the comparison returns
+    \a computed and \a baseline values repeatedly, until either the comparison returns
     \c true or the \a timeout (in milliseconds) is reached. Between each
     comparison, events will be processed. If the timeout is reached, a failure
     is recorded in the test log and the test won't be executed further.
@@ -497,11 +497,11 @@
     \sa QCOMPARE_NE(), QTRY_COMPARE_NE()
 */
 
-/*! \macro QTRY_COMPARE_NE(left, right)
+/*! \macro QTRY_COMPARE_NE(computed, baseline)
     \since 6.4
     \relates QTest
 
-    Performs comparison of \a left and \a right values by invoking
+    Performs comparison of \a computed and \a baseline values by invoking
     QTRY_COMPARE_NE_WITH_TIMEOUT with a timeout of five seconds.
 
     \include qtestcase.qdoc macro-usage-limitation
@@ -509,12 +509,12 @@
     \sa QCOMPARE_NE(), QTRY_COMPARE_NE_WITH_TIMEOUT()
 */
 
-/*! \macro QTRY_COMPARE_LT_WITH_TIMEOUT(left, right, timeout)
+/*! \macro QTRY_COMPARE_LT_WITH_TIMEOUT(computed, baseline, timeout)
     \since 6.4
     \relates QTest
 
     This macro is similar to QCOMPARE_LT(), but performs the comparison of the
-    \a left and \a right values repeatedly, until either the comparison returns
+    \a computed and \a baseline values repeatedly, until either the comparison returns
     \c true or the \a timeout (in milliseconds) is reached. Between each
     comparison, events will be processed. If the timeout is reached, a failure
     is recorded in the test log and the test won't be executed further.
@@ -524,11 +524,11 @@
     \sa QCOMPARE_LT(), QTRY_COMPARE_LT()
 */
 
-/*! \macro QTRY_COMPARE_LT(left, right)
+/*! \macro QTRY_COMPARE_LT(computed, baseline)
     \since 6.4
     \relates QTest
 
-    Performs comparison of \a left and \a right values by invoking
+    Performs comparison of \a computed and \a baseline values by invoking
     QTRY_COMPARE_LT_WITH_TIMEOUT with a timeout of five seconds.
 
     \include qtestcase.qdoc macro-usage-limitation
@@ -536,12 +536,12 @@
     \sa QCOMPARE_LT(), QTRY_COMPARE_LT_WITH_TIMEOUT()
 */
 
-/*! \macro QTRY_COMPARE_LE_WITH_TIMEOUT(left, right, timeout)
+/*! \macro QTRY_COMPARE_LE_WITH_TIMEOUT(computed, baseline, timeout)
     \since 6.4
     \relates QTest
 
     This macro is similar to QCOMPARE_LE(), but performs the comparison of the
-    \a left and \a right values repeatedly, until either the comparison returns
+    \a computed and \a baseline values repeatedly, until either the comparison returns
     \c true or the \a timeout (in milliseconds) is reached. Between each
     comparison, events will be processed. If the timeout is reached, a failure
     is recorded in the test log and the test won't be executed further.
@@ -551,11 +551,11 @@
     \sa QCOMPARE_LE(), QTRY_COMPARE_LE()
 */
 
-/*! \macro QTRY_COMPARE_LE(left, right)
+/*! \macro QTRY_COMPARE_LE(computed, baseline)
     \since 6.4
     \relates QTest
 
-    Performs comparison of \a left and \a right values by invoking
+    Performs comparison of \a computed and \a baseline values by invoking
     QTRY_COMPARE_LE_WITH_TIMEOUT with a timeout of five seconds.
 
     \include qtestcase.qdoc macro-usage-limitation
@@ -563,12 +563,12 @@
     \sa QCOMPARE_LE(), QTRY_COMPARE_LE_WITH_TIMEOUT()
 */
 
-/*! \macro QTRY_COMPARE_GT_WITH_TIMEOUT(left, right, timeout)
+/*! \macro QTRY_COMPARE_GT_WITH_TIMEOUT(computed, baseline, timeout)
     \since 6.4
     \relates QTest
 
     This macro is similar to QCOMPARE_GT(), but performs the comparison of the
-    \a left and \a right values repeatedly, until either the comparison returns
+    \a computed and \a baseline values repeatedly, until either the comparison returns
     \c true or the \a timeout (in milliseconds) is reached. Between each
     comparison, events will be processed. If the timeout is reached, a failure
     is recorded in the test log and the test won't be executed further.
@@ -578,11 +578,11 @@
     \sa QCOMPARE_GT(), QTRY_COMPARE_GT()
 */
 
-/*! \macro QTRY_COMPARE_GT(left, right)
+/*! \macro QTRY_COMPARE_GT(computed, baseline)
     \since 6.4
     \relates QTest
 
-    Performs comparison of \a left and \a right values by invoking
+    Performs comparison of \a computed and \a baseline values by invoking
     QTRY_COMPARE_GT_WITH_TIMEOUT with a timeout of five seconds.
 
     \include qtestcase.qdoc macro-usage-limitation
@@ -590,12 +590,12 @@
     \sa QCOMPARE_GT(), QTRY_COMPARE_GT_WITH_TIMEOUT()
 */
 
-/*! \macro QTRY_COMPARE_GE_WITH_TIMEOUT(left, right, timeout)
+/*! \macro QTRY_COMPARE_GE_WITH_TIMEOUT(computed, baseline, timeout)
     \since 6.4
     \relates QTest
 
     This macro is similar to QCOMPARE_GE(), but performs the comparison of the
-    \a left and \a right values repeatedly, until either the comparison returns
+    \a computed and \a baseline values repeatedly, until either the comparison returns
     \c true or the \a timeout (in milliseconds) is reached. Between each
     comparison, events will be processed. If the timeout is reached, a failure
     is recorded in the test log and the test won't be executed further.
@@ -605,11 +605,11 @@
     \sa QCOMPARE_GE(), QTRY_COMPARE_GE()
 */
 
-/*! \macro QTRY_COMPARE_GE(left, right)
+/*! \macro QTRY_COMPARE_GE(computed, baseline)
     \since 6.4
     \relates QTest
 
-    Performs comparison of \a left and \a right values by invoking
+    Performs comparison of \a computed and \a baseline values by invoking
     QTRY_COMPARE_GE_WITH_TIMEOUT with a timeout of five seconds.
 
     \include qtestcase.qdoc macro-usage-limitation
diff --git a/src/testlib/qtesteventloop.h b/src/testlib/qtesteventloop.h
index 2860882c..6e908806 100644
--- a/src/testlib/qtesteventloop.h
+++ b/src/testlib/qtesteventloop.h
@@ -25,8 +25,9 @@ public:
         : QObject(parent), _timeout(false)
     {}
 
-    inline void enterLoopMSecs(int ms);
-    inline void enterLoop(int secs) { enterLoopMSecs(secs * 1000); }
+    void enterLoopMSecs(int ms) { enterLoop(std::chrono::milliseconds{ms}); };
+    void enterLoop(int secs) { enterLoop(std::chrono::seconds{secs}); }
+    inline void enterLoop(std::chrono::milliseconds msecs);
 
     inline void changeInterval(int secs)
     { killTimer(timerId); timerId = startTimer(secs * 1000); }
@@ -55,7 +56,7 @@ private:
     Q_DECL_UNUSED_MEMBER uint reserved   :31;
 };
 
-inline void QTestEventLoop::enterLoopMSecs(int ms)
+inline void QTestEventLoop::enterLoop(std::chrono::milliseconds msecs)
 {
     Q_ASSERT(!loop);
     _timeout = false;
@@ -63,9 +64,10 @@ inline void QTestEventLoop::enterLoopMSecs(int ms)
     if (QTest::runningTest() && QTest::currentTestResolved())
         return;
 
+    using namespace std::chrono_literals;
     QEventLoop l;
     // if tests want to measure sub-second precision, use a precise timer
-    timerId = startTimer(ms, ms < 1000 ? Qt::PreciseTimer : Qt::CoarseTimer);
+    timerId = startTimer(msecs, msecs < 1s ? Qt::PreciseTimer : Qt::CoarseTimer);
 
     loop = &l;
     l.exec();
diff --git a/src/testlib/qtestresult.cpp b/src/testlib/qtestresult.cpp
index 00799a02..d5f43ee8 100644
--- a/src/testlib/qtestresult.cpp
+++ b/src/testlib/qtestresult.cpp
@@ -313,12 +313,12 @@ bool QTestResult::verify(bool statement, const char *statementStr,
 
 static const char *leftArgNameForOp(QTest::ComparisonOperation op)
 {
-    return op == QTest::ComparisonOperation::CustomCompare ? "Actual   " : "Left   ";
+    return op == QTest::ComparisonOperation::CustomCompare ? "Actual   " : "Computed ";
 }
 
 static const char *rightArgNameForOp(QTest::ComparisonOperation op)
 {
-    return op == QTest::ComparisonOperation::CustomCompare ? "Expected " : "Right  ";
+    return op == QTest::ComparisonOperation::CustomCompare ? "Expected " : "Baseline ";
 }
 
 // Overload to format failures for "const char *" - no need to strdup().
@@ -534,7 +534,8 @@ bool QTestResult::compare(bool success, const char *failureMsg,
 void QTestResult::addFailure(const char *message, const char *file, int line)
 {
     clearExpectFail();
-    QTestEventLoop::instance().exitLoop();
+    if (qApp && QThread::currentThread() == qApp->thread())
+        QTestEventLoop::instance().exitLoop();
 
     if (QTest::blacklistCurrentTest)
         QTestLog::addBFail(message, file, line);
@@ -609,17 +610,17 @@ static const char *failureMessageForOp(QTest::ComparisonOperation op)
     case ComparisonOperation::CustomCompare:
         return "Compared values are not the same"; /* not used */
     case ComparisonOperation::Equal:
-        return "Left value is expected to be equal to right value, but is not";
+        return "The computed value is expected to be equal to the baseline, but is not";
     case ComparisonOperation::NotEqual:
-        return "Left value is expected to be different from right value, but is not";
+        return "The computed value is expected to be different from the baseline, but is not";
     case ComparisonOperation::LessThan:
-        return "Left value is expected to be less than right value, but is not";
+        return "The computed value is expected to be less than the baseline, but is not";
     case ComparisonOperation::LessThanOrEqual:
-        return "Left value is expected to be less than or equal to right value, but is not";
+        return "The computed value is expected to be less than or equal to the baseline, but is not";
     case ComparisonOperation::GreaterThan:
-        return "Left value is expected to be greater than right value, but is not";
+        return "The computed value is expected to be greater than the baseline, but is not";
     case ComparisonOperation::GreaterThanOrEqual:
-        return "Left value is expected to be greater than or equal to right value, but is not";
+        return "The computed value is expected to be greater than or equal to the baseline, but is not";
     }
     Q_UNREACHABLE_RETURN("");
 }
diff --git a/src/testlib/qtesttable.cpp b/src/testlib/qtesttable.cpp
index 6950b249..5dc3a126 100644
--- a/src/testlib/qtesttable.cpp
+++ b/src/testlib/qtesttable.cpp
@@ -74,7 +74,7 @@ bool QTestTable::isEmpty() const
 QTestData *QTestTable::newData(const char *tag)
 {
     if (d->hasRow(tag))
-        qWarning() << "Duplicate data tag" << tag << "- please rename.";
+        qWarning("Duplicate data tag \"%s\" - please rename.", tag);
 
     QTestData *dt = new QTestData(tag, this);
     d->addRow(dt);
diff --git a/src/tools/androiddeployqt/main.cpp b/src/tools/androiddeployqt/main.cpp
index db182a73..b0df0a5e 100644
--- a/src/tools/androiddeployqt/main.cpp
+++ b/src/tools/androiddeployqt/main.cpp
@@ -318,7 +318,6 @@ QString fileArchitecture(const Options &options, const QString &path)
     char buffer[512];
     while (fgets(buffer, sizeof(buffer), readElfCommand) != nullptr) {
         QByteArray line = QByteArray::fromRawData(buffer, qstrlen(buffer));
-        QString library;
         line = line.trimmed();
         if (line.startsWith("Arch: ")) {
             auto it = elfArchitectures.find(line.mid(6));
@@ -1563,7 +1562,6 @@ bool updateLibsXml(Options *options)
     for (auto it = options->architectures.constBegin(); it != options->architectures.constEnd(); ++it) {
         if (!it->enabled)
             continue;
-        QString libsPath = "libs/"_L1 + it.key() + u'/';
 
         qtLibs += "        <item>%1;%2</item>\n"_L1.arg(it.key(), options->stdCppName);
         for (const Options::BundledFile &bundledFile : options->bundledFiles[it.key()]) {
@@ -1851,14 +1849,31 @@ QList<QtDependency> findFilesRecursively(const Options &options, const QFileInfo
 
 QList<QtDependency> findFilesRecursively(const Options &options, const QString &fileName)
 {
+    // We try to find the fileName in extraPrefixDirs first. The function behaves differently
+    // depending on what the fileName points to. If fileName is a file then we try to find the
+    // first occurrence in extraPrefixDirs and return this file. If fileName is directory function
+    // iterates over it and looks for deployment artifacts in each 'extraPrefixDirs' entry.
+    // Also we assume that if the fileName is recognized as a directory once it will be directory
+    // for every 'extraPrefixDirs' entry.
+    QList<QtDependency> deps;
     for (const auto &prefix : options.extraPrefixDirs) {
         QFileInfo info(prefix + u'/' + fileName);
-        if (info.exists())
-            return findFilesRecursively(options, info, prefix + u'/');
+        if (info.exists()) {
+            if (info.isDir())
+                deps.append(findFilesRecursively(options, info, prefix + u'/'));
+            else
+                return findFilesRecursively(options, info, prefix + u'/');
+        }
     }
-    QFileInfo info(options.qtInstallDirectory + "/"_L1 + fileName);
-    QFileInfo rootPath(options.qtInstallDirectory + "/"_L1);
-    return findFilesRecursively(options, info, rootPath.absolutePath() + u'/');
+
+    // Usually android deployment settings contain Qt install directory in extraPrefixDirs.
+    if (std::find(options.extraPrefixDirs.begin(), options.extraPrefixDirs.end(),
+                  options.qtInstallDirectory) == options.extraPrefixDirs.end()) {
+        QFileInfo info(options.qtInstallDirectory + "/"_L1 + fileName);
+        QFileInfo rootPath(options.qtInstallDirectory + "/"_L1);
+        deps.append(findFilesRecursively(options, info, rootPath.absolutePath()));
+    }
+    return deps;
 }
 
 bool readAndroidDependencyXml(Options *options,
@@ -2434,7 +2449,6 @@ bool containsApplicationBinary(Options *options)
     if (options->verbose)
         fprintf(stdout, "Checking if application binary is in package.\n");
 
-    QFileInfo applicationBinary(options->applicationBinary);
     QString applicationFileName = "lib%1_%2.so"_L1.arg(options->applicationBinary,
                                                        options->currentArchitecture);
 
diff --git a/src/tools/androidtestrunner/main.cpp b/src/tools/androidtestrunner/main.cpp
index 60dfc84a..0a2c8e63 100644
--- a/src/tools/androidtestrunner/main.cpp
+++ b/src/tools/androidtestrunner/main.cpp
@@ -478,7 +478,8 @@ struct RunnerLocker
     {
         runner.release();
     }
-    QSystemSemaphore runner{QStringLiteral("androidtestrunner"), 1, QSystemSemaphore::Open};
+    QSystemSemaphore runner{ QSystemSemaphore::platformSafeKey(u"androidtestrunner"_s),
+                1, QSystemSemaphore::Open };
 };
 
 int main(int argc, char *argv[])
diff --git a/src/tools/cmake_automoc_parser/main.cpp b/src/tools/cmake_automoc_parser/main.cpp
index 801483cd..86e10d48 100644
--- a/src/tools/cmake_automoc_parser/main.cpp
+++ b/src/tools/cmake_automoc_parser/main.cpp
@@ -195,7 +195,7 @@ static bool writeJsonFiles(const QList<QString> &fileList, const QString &fileLi
     // processed by cmake_automoc parser
     for (const auto &jsonFile : fileList) {
         const qint64 jsonFileLastModified =
-                QFileInfo(jsonFile).lastModified().toMSecsSinceEpoch();
+                QFileInfo(jsonFile).lastModified(QTimeZone::UTC).toMSecsSinceEpoch();
         if (jsonFileLastModified > timestamp) {
             timestamp = jsonFileLastModified;
         }
diff --git a/src/tools/macdeployqt/shared/shared.cpp b/src/tools/macdeployqt/shared/shared.cpp
index bc3820b8..f637416c 100644
--- a/src/tools/macdeployqt/shared/shared.cpp
+++ b/src/tools/macdeployqt/shared/shared.cpp
@@ -945,7 +945,7 @@ bool DeploymentInfo::containsModule(const QString &module, const QString &libInF
 }
 
 /*
-    Deploys the the listed frameworks listed into an app bundle.
+    Deploys the listed frameworks into an app bundle.
     The frameworks are searched for dependencies, which are also deployed.
     (deploying Qt3Support will also deploy QtNetwork and QtSql for example.)
     Returns a DeploymentInfo structure containing the Qt path used and a
diff --git a/src/tools/moc/CMakeLists.txt b/src/tools/moc/CMakeLists.txt
index d9f5994e..eec01c12 100644
--- a/src/tools/moc/CMakeLists.txt
+++ b/src/tools/moc/CMakeLists.txt
@@ -21,7 +21,6 @@ qt_internal_add_tool(${target_name}
         outputrevision.h
         parser.cpp parser.h
         preprocessor.cpp preprocessor.h
-        # qdatetime_p.h special case remove
         symbols.h
         token.cpp token.h
         utils.h
diff --git a/src/tools/moc/generator.cpp b/src/tools/moc/generator.cpp
index dae2ecc8..6fe9c812 100644
--- a/src/tools/moc/generator.cpp
+++ b/src/tools/moc/generator.cpp
@@ -234,8 +234,7 @@ void Generator::generateCode()
     // filter out undeclared enumerators and sets
     {
         QList<EnumDef> enumList;
-        for (int i = 0; i < cdef->enumList.size(); ++i) {
-            EnumDef def = cdef->enumList.at(i);
+        for (EnumDef def : std::as_const(cdef->enumList)) {
             if (cdef->enumDeclarations.contains(def.name)) {
                 enumList += def;
             }
@@ -377,8 +376,9 @@ void Generator::generateCode()
     fprintf(out, "    %4d, %4d, // enums/sets\n", int(cdef->enumList.size()), cdef->enumList.size() ? index : 0);
 
     int enumsIndex = index;
-    for (int i = 0; i < cdef->enumList.size(); ++i)
-        index += 5 + (cdef->enumList.at(i).values.size() * 2);
+    for (const EnumDef &def : std::as_const(cdef->enumList))
+        index += QMetaObjectPrivate::IntsPerEnum + (def.values.size() * 2);
+
     fprintf(out, "    %4d, %4d, // constructors\n", isConstructible ? int(cdef->constructorList.size()) : 0,
             isConstructible ? index : 0);
 
@@ -397,8 +397,8 @@ void Generator::generateCode()
 //
     generateClassInfos();
 
-    // all property metatypes, + 1 for the type of the current class itself
-    int initialMetaTypeOffset = cdef->propertyList.size() + 1;
+    // all property metatypes + all enum metatypes + 1 for the type of the current class itself
+    int initialMetaTypeOffset = cdef->propertyList.size() + cdef->enumList.size() + 1;
 
 //
 // Build signals array first, otherwise the signal indices would be wrong
@@ -461,8 +461,7 @@ void Generator::generateCode()
     QMultiHash<QByteArray, QByteArray> knownExtraMetaObject(knownGadgets);
     knownExtraMetaObject.unite(knownQObjectClasses);
 
-    for (int i = 0; i < cdef->propertyList.size(); ++i) {
-        const PropertyDef &p = cdef->propertyList.at(i);
+    for (const PropertyDef &p : std::as_const(cdef->propertyList)) {
         if (isBuiltinType(p.type))
             continue;
 
@@ -521,9 +520,9 @@ void Generator::generateCode()
     if (!extraList.isEmpty()) {
         fprintf(out, "Q_CONSTINIT static const QMetaObject::SuperData qt_meta_extradata_%s[] = {\n",
                 qualifiedClassNameIdentifier.constData());
-        for (int i = 0; i < extraList.size(); ++i) {
-            fprintf(out, "    QMetaObject::SuperData::link<%s::staticMetaObject>(),\n", extraList.at(i).constData());
-        }
+        for (const QByteArray &ba : std::as_const(extraList))
+            fprintf(out, "    QMetaObject::SuperData::link<%s::staticMetaObject>(),\n", ba.constData());
+
         fprintf(out, "    nullptr\n};\n\n");
     }
 
@@ -569,13 +568,19 @@ void Generator::generateCode()
         fprintf(out, "    qt_metaTypeArray<");
     }
     // metatypes for properties
-    for (int i = 0; i < cdef->propertyList.size(); ++i) {
-        const PropertyDef &p = cdef->propertyList.at(i);
+    for (const PropertyDef &p : std::as_const(cdef->propertyList)) {
         fprintf(out, "%s\n        // property '%s'\n        %s",
                 comma, p.name.constData(), stringForType(p.type, true).constData());
         comma = ",";
     }
 
+    // metatypes for enums
+    for (const EnumDef &e : std::as_const(cdef->enumList)) {
+        fprintf(out, "%s\n        // enum '%s'\n        %s",
+                comma, e.name.constData(), stringForType(e.qualifiedType(cdef), true).constData());
+        comma = ",";
+    }
+
     // type name for the Q_OJBECT/GADGET itself, void for namespaces
     auto ownType = !cdef->hasQNamespace ? cdef->classname.data() : "void";
     fprintf(out, "%s\n        // Q_OBJECT / Q_GADGET\n        %s",
@@ -595,8 +600,7 @@ void Generator::generateCode()
     }
 
     // but constructors have no return types, so this needs comma control again
-    for (int i = 0; i< cdef->constructorList.size(); ++i) {
-        const FunctionDef& fdef = cdef->constructorList.at(i);
+    for (const FunctionDef &fdef : std::as_const(cdef->constructorList)) {
         if (fdef.arguments.isEmpty())
             continue;
 
@@ -651,7 +655,7 @@ void Generator::generateCode()
     for (const QList<ClassDef::Interface> &iface : std::as_const(cdef->interfaceList)) {
         for (qsizetype j = 0; j < iface.size(); ++j) {
             fprintf(out, "    if (!strcmp(_clname, %s))\n        return ", iface.at(j).interfaceId.constData());
-            for (int k = j; k >= 0; --k)
+            for (qsizetype k = j; k >= 0; --k)
                 fprintf(out, "static_cast< %s*>(", iface.at(k).className.constData());
             fprintf(out, "this%s;\n", QByteArray(j + 1, ')').constData());
         }
@@ -697,8 +701,7 @@ void Generator::generateCode()
 
 void Generator::registerClassInfoStrings()
 {
-    for (int i = 0; i < cdef->classInfoList.size(); ++i) {
-        const ClassInfoDef &c = cdef->classInfoList.at(i);
+    for (const ClassInfoDef &c : std::as_const(cdef->classInfoList)) {
         strreg(c.name);
         strreg(c.value);
     }
@@ -711,25 +714,19 @@ void Generator::generateClassInfos()
 
     fprintf(out, "\n // classinfo: key, value\n");
 
-    for (int i = 0; i < cdef->classInfoList.size(); ++i) {
-        const ClassInfoDef &c = cdef->classInfoList.at(i);
+    for (const ClassInfoDef &c : std::as_const(cdef->classInfoList))
         fprintf(out, "    %4d, %4d,\n", stridx(c.name), stridx(c.value));
-    }
 }
 
 void Generator::registerFunctionStrings(const QList<FunctionDef> &list)
 {
-    for (int i = 0; i < list.size(); ++i) {
-        const FunctionDef &f = list.at(i);
-
+    for (const FunctionDef &f : list) {
         strreg(f.name);
         if (!isBuiltinType(f.normalizedType))
             strreg(f.normalizedType);
         strreg(f.tag);
 
-        int argsCount = f.arguments.size();
-        for (int j = 0; j < argsCount; ++j) {
-            const ArgumentDef &a = f.arguments.at(j);
+        for (const ArgumentDef &a : f.arguments) {
             if (!isBuiltinType(a.normalizedType))
                 strreg(a.normalizedType);
             strreg(a.name);
@@ -750,9 +747,7 @@ void Generator::generateFunctions(const QList<FunctionDef> &list, const char *fu
         return;
     fprintf(out, "\n // %ss: name, argc, parameters, tag, flags, initial metatype offsets\n", functype);
 
-    for (int i = 0; i < list.size(); ++i) {
-        const FunctionDef &f = list.at(i);
-
+    for (const FunctionDef &f : list) {
         QByteArray comment;
         uint flags = type;
         if (f.access == FunctionDef::Private) {
@@ -801,10 +796,8 @@ void Generator::generateFunctionRevisions(const QList<FunctionDef> &list, const
 {
     if (list.size())
         fprintf(out, "\n // %ss: revision\n", functype);
-    for (int i = 0; i < list.size(); ++i) {
-        const FunctionDef &f = list.at(i);
+    for (const FunctionDef &f : list)
         fprintf(out, "    %4d,\n", f.revision);
-    }
 }
 
 void Generator::generateFunctionParameters(const QList<FunctionDef> &list, const char *functype)
@@ -812,8 +805,7 @@ void Generator::generateFunctionParameters(const QList<FunctionDef> &list, const
     if (list.isEmpty())
         return;
     fprintf(out, "\n // %ss: parameters\n", functype);
-    for (int i = 0; i < list.size(); ++i) {
-        const FunctionDef &f = list.at(i);
+    for (const FunctionDef &f : list) {
         fprintf(out, "    ");
 
         // Types
@@ -827,10 +819,8 @@ void Generator::generateFunctionParameters(const QList<FunctionDef> &list, const
         }
 
         // Parameter names
-        for (int j = 0; j < argsCount; ++j) {
-            const ArgumentDef &arg = f.arguments.at(j);
+        for (const ArgumentDef &arg : f.arguments)
             fprintf(out, " %4d,", stridx(arg.name));
-        }
 
         fprintf(out, "\n");
     }
@@ -863,8 +853,7 @@ void Generator::generateTypeInfo(const QByteArray &typeName, bool allowEmptyName
 
 void Generator::registerPropertyStrings()
 {
-    for (int i = 0; i < cdef->propertyList.size(); ++i) {
-        const PropertyDef &p = cdef->propertyList.at(i);
+    for (const PropertyDef &p : std::as_const(cdef->propertyList)) {
         strreg(p.name);
         if (!isBuiltinType(p.type))
             strreg(p.type);
@@ -879,8 +868,7 @@ void Generator::generateProperties()
 
     if (cdef->propertyList.size())
         fprintf(out, "\n // properties: name, type, flags\n");
-    for (int i = 0; i < cdef->propertyList.size(); ++i) {
-        const PropertyDef &p = cdef->propertyList.at(i);
+    for (const PropertyDef &p : std::as_const(cdef->propertyList)) {
         uint flags = Invalid;
         if (!isBuiltinType(p.type))
             flags |= EnumOrFlag;
@@ -933,13 +921,12 @@ void Generator::generateProperties()
 
 void Generator::registerEnumStrings()
 {
-    for (int i = 0; i < cdef->enumList.size(); ++i) {
-        const EnumDef &e = cdef->enumList.at(i);
+    for (const EnumDef &e : std::as_const(cdef->enumList)) {
         strreg(e.name);
         if (!e.enumName.isNull())
             strreg(e.enumName);
-        for (int j = 0; j < e.values.size(); ++j)
-            strreg(e.values.at(j));
+        for (const QByteArray &val : e.values)
+            strreg(val);
     }
 }
 
@@ -949,7 +936,7 @@ void Generator::generateEnums(int index)
         return;
 
     fprintf(out, "\n // enums: name, alias, flags, count, data\n");
-    index += 5 * cdef->enumList.size();
+    index += QMetaObjectPrivate::IntsPerEnum * cdef->enumList.size();
     int i;
     for (i = 0; i < cdef->enumList.size(); ++i) {
         const EnumDef &e = cdef->enumList.at(i);
@@ -968,10 +955,8 @@ void Generator::generateEnums(int index)
     }
 
     fprintf(out, "\n // enum data: key, value\n");
-    for (i = 0; i < cdef->enumList.size(); ++i) {
-        const EnumDef &e = cdef->enumList.at(i);
-        for (int j = 0; j < e.values.size(); ++j) {
-            const QByteArray &val = e.values.at(j);
+    for (const EnumDef &e : std::as_const(cdef->enumList)) {
+        for (const QByteArray &val : e.values) {
             QByteArray code = cdef->qualified.constData();
             if (e.isEnumClass)
                 code += "::" + (e.enumName.isNull() ? e.name : e.enumName);
@@ -1079,33 +1064,46 @@ void Generator::generateStaticMetacall()
     bool needElse = false;
     bool isUsed_a = false;
 
+    const auto generateCtorArguments = [&](int ctorindex) {
+        const FunctionDef &f = cdef->constructorList.at(ctorindex);
+        Q_ASSERT(!f.isPrivateSignal); // That would be a strange ctor indeed
+        int offset = 1;
+
+        const auto begin = f.arguments.cbegin();
+        const auto end = f.arguments.cend();
+        for (auto it = begin; it != end; ++it) {
+            const ArgumentDef &a = *it;
+            if (it != begin)
+                fprintf(out, ",");
+            fprintf(out, "(*reinterpret_cast<%s>(_a[%d]))",
+                    a.typeNameForCast.constData(), offset++);
+        }
+    };
+
     if (!cdef->constructorList.isEmpty()) {
         fprintf(out, "    if (_c == QMetaObject::CreateInstance) {\n");
         fprintf(out, "        switch (_id) {\n");
-        for (int ctorindex = 0; ctorindex < cdef->constructorList.size(); ++ctorindex) {
+        const int ctorend = cdef->constructorList.size();
+        for (int ctorindex = 0; ctorindex < ctorend; ++ctorindex) {
             fprintf(out, "        case %d: { %s *_r = new %s(", ctorindex,
                     cdef->classname.constData(), cdef->classname.constData());
-            const FunctionDef &f = cdef->constructorList.at(ctorindex);
-            int offset = 1;
-
-            int argsCount = f.arguments.size();
-            for (int j = 0; j < argsCount; ++j) {
-                const ArgumentDef &a = f.arguments.at(j);
-                if (j)
-                    fprintf(out, ",");
-                fprintf(out, "(*reinterpret_cast< %s>(_a[%d]))", a.typeNameForCast.constData(), offset++);
-            }
-            if (f.isPrivateSignal) {
-                if (argsCount > 0)
-                    fprintf(out, ", ");
-                fprintf(out, "%s", QByteArray("QPrivateSignal()").constData());
-            }
+            generateCtorArguments(ctorindex);
             fprintf(out, ");\n");
             fprintf(out, "            if (_a[0]) *reinterpret_cast<%s**>(_a[0]) = _r; } break;\n",
                     (cdef->hasQGadget || cdef->hasQNamespace) ? "void" : "QObject");
         }
         fprintf(out, "        default: break;\n");
         fprintf(out, "        }\n");
+        fprintf(out, "    } else if (_c == QMetaObject::ConstructInPlace) {\n");
+        fprintf(out, "        switch (_id) {\n");
+        for (int ctorindex = 0; ctorindex < ctorend; ++ctorindex) {
+            fprintf(out, "        case %d: { new (_a[0]) %s(",
+                    ctorindex, cdef->classname.constData());
+            generateCtorArguments(ctorindex);
+            fprintf(out, "); } break;\n");
+        }
+        fprintf(out, "        default: break;\n");
+        fprintf(out, "        }\n");
         fprintf(out, "    }");
         needElse = true;
         isUsed_a = true;
@@ -1278,8 +1276,7 @@ void Generator::generateStaticMetacall()
         bool needSet = false;
         bool needReset = false;
         bool hasBindableProperties = false;
-        for (int i = 0; i < cdef->propertyList.size(); ++i) {
-            const PropertyDef &p = cdef->propertyList.at(i);
+        for (const PropertyDef &p : std::as_const(cdef->propertyList)) {
             needGet |= !p.read.isEmpty() || !p.member.isEmpty();
             if (!p.read.isEmpty() || !p.member.isEmpty())
                 needTempVarForGet |= (p.gspec != PropertyDef::PointerSpec
@@ -1290,7 +1287,7 @@ void Generator::generateStaticMetacall()
             hasBindableProperties |= !p.bind.isEmpty();
         }
         if (needElse)
-            fprintf(out, "else ");
+            fprintf(out, " else ");
         fprintf(out, "if (_c == QMetaObject::ReadProperty) {\n");
 
         auto setupMemberAccess = [this]() {
diff --git a/src/tools/moc/keywords.cpp b/src/tools/moc/keywords.cpp
index 9d82da7a..6a1f5849 100644
--- a/src/tools/moc/keywords.cpp
+++ b/src/tools/moc/keywords.cpp
@@ -5,12 +5,12 @@
 // DO NOT EDIT.
 
 static const short keyword_trans[][128] = {
-    {0,0,0,0,0,0,0,0,0,586,583,0,0,0,0,0,
+    {0,0,0,0,0,0,0,0,0,618,615,0,0,0,0,0,
      0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
-     586,252,584,587,8,38,239,585,25,26,236,234,30,235,27,237,
+     618,252,616,619,8,38,239,617,25,26,236,234,30,235,27,237,
      22,22,22,22,22,22,22,22,22,22,34,41,23,39,24,43,
      0,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,
-     8,21,8,8,8,8,8,8,8,8,8,31,589,32,238,8,
+     8,21,8,8,8,8,8,8,8,8,8,31,621,32,238,8,
      0,1,2,3,4,5,6,7,8,9,8,8,10,11,12,13,
      14,8,15,16,17,18,19,20,8,8,8,36,245,37,248,0},
     {0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
@@ -91,7 +91,7 @@ static const short keyword_trans[][128] = {
      0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
      0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
      0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
-     0,0,0,0,0,0,0,0,290,222,0,0,504,0,0,0,
+     0,0,0,0,0,0,0,0,290,222,0,0,524,0,0,0,
      0,0,0,0,55,0,0,330,0,0,0,0,0,0,0,0},
     {0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
      0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
@@ -130,7 +130,7 @@ static const short keyword_trans[][128] = {
      0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
      0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
      0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
-     0,0,0,0,528,0,0,0,0,0,0,0,0,0,0,357,
+     0,0,0,0,401,0,0,0,0,0,0,0,0,0,0,357,
      0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
      0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0},
     {0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
@@ -152,7 +152,7 @@ static const short keyword_trans[][128] = {
     {0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
      0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
      0,0,0,0,0,0,0,0,0,0,42,0,0,0,28,0,
-     592,592,592,592,592,592,592,592,592,592,0,0,0,0,0,0,
+     624,624,624,624,624,624,624,624,624,624,0,0,0,0,0,0,
      0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
      0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
      0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
@@ -311,7 +311,7 @@ static const short keyword_trans[][128] = {
      0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0},
     {0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
      0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
-     0,0,0,0,0,0,0,0,0,0,591,0,0,0,0,590,
+     0,0,0,0,0,0,0,0,0,0,623,0,0,0,0,622,
      0,0,0,0,0,0,0,0,0,0,0,0,0,258,0,0,
      0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
      0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
@@ -347,21 +347,21 @@ static const short keyword_trans[][128] = {
      0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
      0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
      0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
-     0,501,0,0,0,300,0,0,0,0,0,0,0,0,0,0,
+     0,521,0,0,0,300,0,0,0,0,0,0,0,0,0,0,
      0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0},
     {0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
      0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
      0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
      0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
-     0,0,0,482,431,415,423,380,0,491,0,0,0,572,364,358,
-     393,0,564,479,0,0,0,0,0,0,0,0,0,0,0,0,
+     0,0,0,502,451,435,443,380,0,511,0,0,0,604,364,358,
+     393,0,596,499,0,0,0,0,0,0,0,0,0,0,0,0,
      0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
      0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0},
     {0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
      0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
      0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
      0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
-     0,0,0,0,0,0,0,0,0,0,0,0,401,0,0,0,
+     0,0,0,0,0,0,0,0,0,0,0,0,421,0,0,0,
      0,0,394,0,0,0,0,0,0,0,0,0,0,0,0,0,
      0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
      0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0},
@@ -369,7 +369,23 @@ static const short keyword_trans[][128] = {
      0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
      0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
      0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
-     0,0,0,0,0,0,0,0,0,518,0,0,0,0,0,395,
+     0,0,0,0,0,0,0,0,0,538,0,0,0,0,0,395,
+     0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+     0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+     0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0},
+    {0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+     0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+     0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+     0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+     0,403,0,0,0,0,0,0,0,0,0,0,0,548,0,0,
+     0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+     0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+     0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0},
+    {0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+     0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+     0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+     0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+     0,0,0,0,0,0,0,0,0,582,0,0,0,0,0,415,
      0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
      0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
      0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0},
@@ -378,7 +394,7 @@ static const short keyword_trans[][128] = {
      0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
      0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
      0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
-     0,0,0,419,0,0,0,0,0,0,0,0,0,0,0,420,
+     0,0,0,439,0,0,0,0,0,0,0,0,0,0,0,440,
      0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
      0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0},
     {0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
@@ -386,14 +402,14 @@ static const short keyword_trans[][128] = {
      0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
      0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
      0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
-     0,0,0,427,0,0,0,0,0,0,0,0,0,0,0,428,
+     0,0,0,447,0,0,0,0,0,0,0,0,0,0,0,448,
      0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
      0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0},
     {0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
      0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
      0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
      0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
-     0,0,0,0,0,461,439,0,0,444,0,0,0,453,0,0,
+     0,0,0,0,0,481,459,0,0,464,0,0,0,473,0,0,
      0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
      0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
      0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0},
@@ -401,7 +417,7 @@ static const short keyword_trans[][128] = {
      0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
      0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
      0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
-     0,0,0,547,0,480,0,0,0,508,0,0,514,0,0,0,
+     0,0,0,565,0,500,0,0,0,528,0,0,534,0,0,0,
      0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
      0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
      0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0},
@@ -410,7 +426,7 @@ static const short keyword_trans[][128] = {
      0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
      0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
      0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
-     0,0,0,0,493,0,540,0,0,0,0,0,0,0,0,0,
+     0,0,0,0,513,0,558,0,0,0,0,0,0,0,0,0,
      0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
      0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0},
     {0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
@@ -418,7 +434,7 @@ static const short keyword_trans[][128] = {
      0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
      0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
      0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
-     556,0,0,524,0,0,0,0,0,0,0,0,0,0,0,0,
+     574,0,0,544,0,0,0,0,0,0,0,0,0,0,0,0,
      0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
      0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0}
 };
@@ -832,193 +848,225 @@ static const struct
     {CHARACTER, 0, 84, 399, CHARACTER},
     {CHARACTER, 0, 89, 400, CHARACTER},
     {Q_PROPERTY_TOKEN, 0, 0, 0, CHARACTER},
-    {CHARACTER, 0, 85, 402, CHARACTER},
-    {CHARACTER, 0, 71, 403, CHARACTER},
-    {CHARACTER, 0, 73, 404, CHARACTER},
-    {CHARACTER, 0, 78, 405, CHARACTER},
-    {CHARACTER, 0, 95, 406, CHARACTER},
-    {CHARACTER, 0, 77, 407, CHARACTER},
-    {CHARACTER, 0, 69, 408, CHARACTER},
-    {CHARACTER, 0, 84, 409, CHARACTER},
-    {CHARACTER, 0, 65, 410, CHARACTER},
-    {CHARACTER, 0, 68, 411, CHARACTER},
-    {CHARACTER, 0, 65, 412, CHARACTER},
-    {CHARACTER, 0, 84, 413, CHARACTER},
-    {CHARACTER, 0, 65, 414, CHARACTER},
+    {CHARACTER, 0, 95, 402, CHARACTER},
+    {CHARACTER, 46, 0, 0, CHARACTER},
+    {CHARACTER, 0, 78, 404, CHARACTER},
+    {CHARACTER, 0, 79, 405, CHARACTER},
+    {CHARACTER, 0, 78, 406, CHARACTER},
+    {CHARACTER, 0, 89, 407, CHARACTER},
+    {CHARACTER, 0, 77, 408, CHARACTER},
+    {CHARACTER, 0, 79, 409, CHARACTER},
+    {CHARACTER, 0, 85, 410, CHARACTER},
+    {CHARACTER, 0, 83, 411, CHARACTER},
+    {CHARACTER, 0, 95, 412, CHARACTER},
+    {CHARACTER, 0, 80, 413, CHARACTER},
+    {CHARACTER, 0, 82, 414, CHARACTER},
+    {CHARACTER, 47, 0, 0, CHARACTER},
+    {CHARACTER, 0, 80, 416, CHARACTER},
+    {CHARACTER, 0, 69, 417, CHARACTER},
+    {CHARACTER, 0, 82, 418, CHARACTER},
+    {CHARACTER, 0, 84, 419, CHARACTER},
+    {CHARACTER, 0, 89, 420, CHARACTER},
+    {QT_ANONYMOUS_PROPERTY_TOKEN, 0, 0, 0, CHARACTER},
+    {CHARACTER, 0, 85, 422, CHARACTER},
+    {CHARACTER, 0, 71, 423, CHARACTER},
+    {CHARACTER, 0, 73, 424, CHARACTER},
+    {CHARACTER, 0, 78, 425, CHARACTER},
+    {CHARACTER, 0, 95, 426, CHARACTER},
+    {CHARACTER, 0, 77, 427, CHARACTER},
+    {CHARACTER, 0, 69, 428, CHARACTER},
+    {CHARACTER, 0, 84, 429, CHARACTER},
+    {CHARACTER, 0, 65, 430, CHARACTER},
+    {CHARACTER, 0, 68, 431, CHARACTER},
+    {CHARACTER, 0, 65, 432, CHARACTER},
+    {CHARACTER, 0, 84, 433, CHARACTER},
+    {CHARACTER, 0, 65, 434, CHARACTER},
     {Q_PLUGIN_METADATA_TOKEN, 0, 0, 0, CHARACTER},
-    {CHARACTER, 0, 78, 416, CHARACTER},
-    {CHARACTER, 0, 85, 417, CHARACTER},
-    {CHARACTER, 0, 77, 418, CHARACTER},
-    {Q_ENUM_TOKEN, 46, 0, 0, CHARACTER},
+    {CHARACTER, 0, 78, 436, CHARACTER},
+    {CHARACTER, 0, 85, 437, CHARACTER},
+    {CHARACTER, 0, 77, 438, CHARACTER},
+    {Q_ENUM_TOKEN, 48, 0, 0, CHARACTER},
     {Q_ENUMS_TOKEN, 0, 0, 0, CHARACTER},
-    {CHARACTER, 0, 78, 421, CHARACTER},
-    {CHARACTER, 0, 83, 422, CHARACTER},
+    {CHARACTER, 0, 78, 441, CHARACTER},
+    {CHARACTER, 0, 83, 442, CHARACTER},
     {Q_ENUM_NS_TOKEN, 0, 0, 0, CHARACTER},
-    {CHARACTER, 0, 76, 424, CHARACTER},
-    {CHARACTER, 0, 65, 425, CHARACTER},
-    {CHARACTER, 0, 71, 426, CHARACTER},
-    {Q_FLAG_TOKEN, 47, 0, 0, CHARACTER},
+    {CHARACTER, 0, 76, 444, CHARACTER},
+    {CHARACTER, 0, 65, 445, CHARACTER},
+    {CHARACTER, 0, 71, 446, CHARACTER},
+    {Q_FLAG_TOKEN, 49, 0, 0, CHARACTER},
     {Q_FLAGS_TOKEN, 0, 0, 0, CHARACTER},
-    {CHARACTER, 0, 78, 429, CHARACTER},
-    {CHARACTER, 0, 83, 430, CHARACTER},
+    {CHARACTER, 0, 78, 449, CHARACTER},
+    {CHARACTER, 0, 83, 450, CHARACTER},
     {Q_FLAG_NS_TOKEN, 0, 0, 0, CHARACTER},
-    {CHARACTER, 0, 69, 432, CHARACTER},
-    {CHARACTER, 0, 67, 433, CHARACTER},
-    {CHARACTER, 0, 76, 434, CHARACTER},
-    {CHARACTER, 0, 65, 435, CHARACTER},
-    {CHARACTER, 0, 82, 436, CHARACTER},
-    {CHARACTER, 0, 69, 437, CHARACTER},
-    {CHARACTER, 0, 95, 438, CHARACTER},
-    {CHARACTER, 48, 0, 0, CHARACTER},
-    {CHARACTER, 0, 76, 440, CHARACTER},
-    {CHARACTER, 0, 65, 441, CHARACTER},
-    {CHARACTER, 0, 71, 442, CHARACTER},
-    {CHARACTER, 0, 83, 443, CHARACTER},
+    {CHARACTER, 0, 69, 452, CHARACTER},
+    {CHARACTER, 0, 67, 453, CHARACTER},
+    {CHARACTER, 0, 76, 454, CHARACTER},
+    {CHARACTER, 0, 65, 455, CHARACTER},
+    {CHARACTER, 0, 82, 456, CHARACTER},
+    {CHARACTER, 0, 69, 457, CHARACTER},
+    {CHARACTER, 0, 95, 458, CHARACTER},
+    {CHARACTER, 50, 0, 0, CHARACTER},
+    {CHARACTER, 0, 76, 460, CHARACTER},
+    {CHARACTER, 0, 65, 461, CHARACTER},
+    {CHARACTER, 0, 71, 462, CHARACTER},
+    {CHARACTER, 0, 83, 463, CHARACTER},
     {Q_DECLARE_FLAGS_TOKEN, 0, 0, 0, CHARACTER},
-    {CHARACTER, 0, 78, 445, CHARACTER},
-    {CHARACTER, 0, 84, 446, CHARACTER},
-    {CHARACTER, 0, 69, 447, CHARACTER},
-    {CHARACTER, 0, 82, 448, CHARACTER},
-    {CHARACTER, 0, 70, 449, CHARACTER},
-    {CHARACTER, 0, 65, 450, CHARACTER},
-    {CHARACTER, 0, 67, 451, CHARACTER},
-    {CHARACTER, 0, 69, 452, CHARACTER},
-    {Q_DECLARE_INTERFACE_TOKEN, 0, 0, 0, CHARACTER},
-    {CHARACTER, 0, 69, 454, CHARACTER},
-    {CHARACTER, 0, 84, 455, CHARACTER},
-    {CHARACTER, 0, 65, 456, CHARACTER},
-    {CHARACTER, 0, 84, 457, CHARACTER},
-    {CHARACTER, 0, 89, 458, CHARACTER},
-    {CHARACTER, 0, 80, 459, CHARACTER},
-    {CHARACTER, 0, 69, 460, CHARACTER},
-    {Q_DECLARE_METATYPE_TOKEN, 0, 0, 0, CHARACTER},
-    {CHARACTER, 0, 88, 462, CHARACTER},
-    {CHARACTER, 0, 84, 463, CHARACTER},
-    {CHARACTER, 0, 69, 464, CHARACTER},
     {CHARACTER, 0, 78, 465, CHARACTER},
-    {CHARACTER, 0, 83, 466, CHARACTER},
-    {CHARACTER, 0, 73, 467, CHARACTER},
-    {CHARACTER, 0, 79, 468, CHARACTER},
-    {CHARACTER, 0, 78, 469, CHARACTER},
-    {CHARACTER, 0, 95, 470, CHARACTER},
-    {CHARACTER, 0, 73, 471, CHARACTER},
-    {CHARACTER, 0, 78, 472, CHARACTER},
-    {CHARACTER, 0, 84, 473, CHARACTER},
+    {CHARACTER, 0, 84, 466, CHARACTER},
+    {CHARACTER, 0, 69, 467, CHARACTER},
+    {CHARACTER, 0, 82, 468, CHARACTER},
+    {CHARACTER, 0, 70, 469, CHARACTER},
+    {CHARACTER, 0, 65, 470, CHARACTER},
+    {CHARACTER, 0, 67, 471, CHARACTER},
+    {CHARACTER, 0, 69, 472, CHARACTER},
+    {Q_DECLARE_INTERFACE_TOKEN, 0, 0, 0, CHARACTER},
     {CHARACTER, 0, 69, 474, CHARACTER},
-    {CHARACTER, 0, 82, 475, CHARACTER},
-    {CHARACTER, 0, 70, 476, CHARACTER},
-    {CHARACTER, 0, 65, 477, CHARACTER},
-    {CHARACTER, 0, 67, 478, CHARACTER},
-    {CHARACTER, 0, 69, 452, CHARACTER},
-    {CHARACTER, 49, 0, 0, CHARACTER},
-    {CHARACTER, 0, 84, 481, CHARACTER},
-    {CHARACTER, 0, 83, 427, CHARACTER},
-    {CHARACTER, 0, 76, 483, CHARACTER},
-    {CHARACTER, 0, 65, 484, CHARACTER},
-    {CHARACTER, 0, 83, 485, CHARACTER},
+    {CHARACTER, 0, 84, 475, CHARACTER},
+    {CHARACTER, 0, 65, 476, CHARACTER},
+    {CHARACTER, 0, 84, 477, CHARACTER},
+    {CHARACTER, 0, 89, 478, CHARACTER},
+    {CHARACTER, 0, 80, 479, CHARACTER},
+    {CHARACTER, 0, 69, 480, CHARACTER},
+    {Q_DECLARE_METATYPE_TOKEN, 0, 0, 0, CHARACTER},
+    {CHARACTER, 0, 88, 482, CHARACTER},
+    {CHARACTER, 0, 84, 483, CHARACTER},
+    {CHARACTER, 0, 69, 484, CHARACTER},
+    {CHARACTER, 0, 78, 485, CHARACTER},
     {CHARACTER, 0, 83, 486, CHARACTER},
     {CHARACTER, 0, 73, 487, CHARACTER},
-    {CHARACTER, 0, 78, 488, CHARACTER},
-    {CHARACTER, 0, 70, 489, CHARACTER},
-    {CHARACTER, 0, 79, 490, CHARACTER},
-    {Q_CLASSINFO_TOKEN, 0, 0, 0, CHARACTER},
+    {CHARACTER, 0, 79, 488, CHARACTER},
+    {CHARACTER, 0, 78, 489, CHARACTER},
+    {CHARACTER, 0, 95, 490, CHARACTER},
+    {CHARACTER, 0, 73, 491, CHARACTER},
     {CHARACTER, 0, 78, 492, CHARACTER},
-    {CHARACTER, 50, 0, 0, CHARACTER},
+    {CHARACTER, 0, 84, 493, CHARACTER},
     {CHARACTER, 0, 69, 494, CHARACTER},
     {CHARACTER, 0, 82, 495, CHARACTER},
     {CHARACTER, 0, 70, 496, CHARACTER},
     {CHARACTER, 0, 65, 497, CHARACTER},
     {CHARACTER, 0, 67, 498, CHARACTER},
-    {CHARACTER, 0, 69, 499, CHARACTER},
-    {CHARACTER, 0, 83, 500, CHARACTER},
-    {Q_INTERFACES_TOKEN, 0, 0, 0, CHARACTER},
-    {CHARACTER, 0, 108, 502, CHARACTER},
-    {CHARACTER, 0, 115, 503, CHARACTER},
-    {SIGNALS, 0, 0, 0, CHARACTER},
-    {CHARACTER, 0, 111, 505, CHARACTER},
-    {CHARACTER, 0, 116, 506, CHARACTER},
-    {CHARACTER, 0, 115, 507, CHARACTER},
-    {SLOTS, 0, 0, 0, CHARACTER},
-    {CHARACTER, 0, 71, 509, CHARACTER},
-    {CHARACTER, 0, 78, 510, CHARACTER},
-    {CHARACTER, 0, 65, 511, CHARACTER},
-    {CHARACTER, 0, 76, 512, CHARACTER},
-    {Q_SIGNAL_TOKEN, 0, 83, 513, CHARACTER},
-    {Q_SIGNALS_TOKEN, 0, 0, 0, CHARACTER},
-    {CHARACTER, 0, 79, 515, CHARACTER},
-    {CHARACTER, 0, 84, 516, CHARACTER},
-    {Q_SLOT_TOKEN, 0, 83, 517, CHARACTER},
-    {Q_SLOTS_TOKEN, 0, 0, 0, CHARACTER},
-    {CHARACTER, 0, 86, 519, CHARACTER},
-    {CHARACTER, 0, 65, 520, CHARACTER},
-    {CHARACTER, 0, 84, 521, CHARACTER},
-    {CHARACTER, 0, 69, 522, CHARACTER},
-    {CHARACTER, 0, 95, 523, CHARACTER},
+    {CHARACTER, 0, 69, 472, CHARACTER},
     {CHARACTER, 51, 0, 0, CHARACTER},
-    {CHARACTER, 0, 76, 525, CHARACTER},
-    {CHARACTER, 0, 79, 526, CHARACTER},
-    {CHARACTER, 0, 84, 527, CHARACTER},
-    {Q_PRIVATE_SLOT_TOKEN, 0, 0, 0, CHARACTER},
-    {CHARACTER, 0, 95, 529, CHARACTER},
-    {CHARACTER, 0, 77, 530, CHARACTER},
-    {CHARACTER, 0, 79, 531, CHARACTER},
-    {CHARACTER, 0, 67, 532, CHARACTER},
-    {CHARACTER, 0, 95, 533, CHARACTER},
-    {CHARACTER, 0, 67, 534, CHARACTER},
+    {CHARACTER, 0, 84, 501, CHARACTER},
+    {CHARACTER, 0, 83, 447, CHARACTER},
+    {CHARACTER, 0, 76, 503, CHARACTER},
+    {CHARACTER, 0, 65, 504, CHARACTER},
+    {CHARACTER, 0, 83, 505, CHARACTER},
+    {CHARACTER, 0, 83, 506, CHARACTER},
+    {CHARACTER, 0, 73, 507, CHARACTER},
+    {CHARACTER, 0, 78, 508, CHARACTER},
+    {CHARACTER, 0, 70, 509, CHARACTER},
+    {CHARACTER, 0, 79, 510, CHARACTER},
+    {Q_CLASSINFO_TOKEN, 0, 0, 0, CHARACTER},
+    {CHARACTER, 0, 78, 512, CHARACTER},
+    {CHARACTER, 52, 0, 0, CHARACTER},
+    {CHARACTER, 0, 69, 514, CHARACTER},
+    {CHARACTER, 0, 82, 515, CHARACTER},
+    {CHARACTER, 0, 70, 516, CHARACTER},
+    {CHARACTER, 0, 65, 517, CHARACTER},
+    {CHARACTER, 0, 67, 518, CHARACTER},
+    {CHARACTER, 0, 69, 519, CHARACTER},
+    {CHARACTER, 0, 83, 520, CHARACTER},
+    {Q_INTERFACES_TOKEN, 0, 0, 0, CHARACTER},
+    {CHARACTER, 0, 108, 522, CHARACTER},
+    {CHARACTER, 0, 115, 523, CHARACTER},
+    {SIGNALS, 0, 0, 0, CHARACTER},
+    {CHARACTER, 0, 111, 525, CHARACTER},
+    {CHARACTER, 0, 116, 526, CHARACTER},
+    {CHARACTER, 0, 115, 527, CHARACTER},
+    {SLOTS, 0, 0, 0, CHARACTER},
+    {CHARACTER, 0, 71, 529, CHARACTER},
+    {CHARACTER, 0, 78, 530, CHARACTER},
+    {CHARACTER, 0, 65, 531, CHARACTER},
+    {CHARACTER, 0, 76, 532, CHARACTER},
+    {Q_SIGNAL_TOKEN, 0, 83, 533, CHARACTER},
+    {Q_SIGNALS_TOKEN, 0, 0, 0, CHARACTER},
     {CHARACTER, 0, 79, 535, CHARACTER},
-    {CHARACTER, 0, 77, 536, CHARACTER},
-    {CHARACTER, 0, 80, 537, CHARACTER},
-    {CHARACTER, 0, 65, 538, CHARACTER},
-    {CHARACTER, 0, 84, 539, CHARACTER},
-    {Q_MOC_COMPAT_TOKEN, 0, 0, 0, CHARACTER},
-    {CHARACTER, 0, 79, 541, CHARACTER},
-    {CHARACTER, 0, 75, 542, CHARACTER},
-    {CHARACTER, 0, 65, 543, CHARACTER},
-    {CHARACTER, 0, 66, 544, CHARACTER},
+    {CHARACTER, 0, 84, 536, CHARACTER},
+    {Q_SLOT_TOKEN, 0, 83, 537, CHARACTER},
+    {Q_SLOTS_TOKEN, 0, 0, 0, CHARACTER},
+    {CHARACTER, 0, 86, 539, CHARACTER},
+    {CHARACTER, 0, 65, 540, CHARACTER},
+    {CHARACTER, 0, 84, 541, CHARACTER},
+    {CHARACTER, 0, 69, 542, CHARACTER},
+    {CHARACTER, 0, 95, 543, CHARACTER},
+    {CHARACTER, 53, 0, 0, CHARACTER},
     {CHARACTER, 0, 76, 545, CHARACTER},
-    {CHARACTER, 0, 69, 546, CHARACTER},
+    {CHARACTER, 0, 79, 546, CHARACTER},
+    {CHARACTER, 0, 84, 547, CHARACTER},
+    {Q_PRIVATE_SLOT_TOKEN, 0, 0, 0, CHARACTER},
+    {CHARACTER, 0, 79, 549, CHARACTER},
+    {CHARACTER, 0, 67, 550, CHARACTER},
+    {CHARACTER, 0, 95, 551, CHARACTER},
+    {CHARACTER, 0, 67, 552, CHARACTER},
+    {CHARACTER, 0, 79, 553, CHARACTER},
+    {CHARACTER, 0, 77, 554, CHARACTER},
+    {CHARACTER, 0, 80, 555, CHARACTER},
+    {CHARACTER, 0, 65, 556, CHARACTER},
+    {CHARACTER, 0, 84, 557, CHARACTER},
+    {Q_MOC_COMPAT_TOKEN, 0, 0, 0, CHARACTER},
+    {CHARACTER, 0, 79, 559, CHARACTER},
+    {CHARACTER, 0, 75, 560, CHARACTER},
+    {CHARACTER, 0, 65, 561, CHARACTER},
+    {CHARACTER, 0, 66, 562, CHARACTER},
+    {CHARACTER, 0, 76, 563, CHARACTER},
+    {CHARACTER, 0, 69, 564, CHARACTER},
     {Q_INVOKABLE_TOKEN, 0, 0, 0, CHARACTER},
-    {CHARACTER, 0, 82, 548, CHARACTER},
-    {CHARACTER, 0, 73, 549, CHARACTER},
-    {CHARACTER, 0, 80, 550, CHARACTER},
-    {CHARACTER, 0, 84, 551, CHARACTER},
-    {CHARACTER, 0, 65, 552, CHARACTER},
-    {CHARACTER, 0, 66, 553, CHARACTER},
-    {CHARACTER, 0, 76, 554, CHARACTER},
-    {CHARACTER, 0, 69, 555, CHARACTER},
-    {Q_SCRIPTABLE_TOKEN, 0, 0, 0, CHARACTER},
-    {CHARACTER, 0, 82, 557, CHARACTER},
-    {CHARACTER, 0, 79, 558, CHARACTER},
-    {CHARACTER, 0, 80, 559, CHARACTER},
-    {CHARACTER, 0, 69, 560, CHARACTER},
-    {CHARACTER, 0, 82, 561, CHARACTER},
-    {CHARACTER, 0, 84, 562, CHARACTER},
-    {CHARACTER, 0, 89, 563, CHARACTER},
-    {Q_PRIVATE_PROPERTY_TOKEN, 0, 0, 0, CHARACTER},
-    {CHARACTER, 0, 69, 565, CHARACTER},
-    {CHARACTER, 0, 86, 566, CHARACTER},
+    {CHARACTER, 0, 82, 566, CHARACTER},
     {CHARACTER, 0, 73, 567, CHARACTER},
-    {CHARACTER, 0, 83, 568, CHARACTER},
-    {CHARACTER, 0, 73, 569, CHARACTER},
-    {CHARACTER, 0, 79, 570, CHARACTER},
-    {CHARACTER, 0, 78, 571, CHARACTER},
+    {CHARACTER, 0, 80, 568, CHARACTER},
+    {CHARACTER, 0, 84, 569, CHARACTER},
+    {CHARACTER, 0, 65, 570, CHARACTER},
+    {CHARACTER, 0, 66, 571, CHARACTER},
+    {CHARACTER, 0, 76, 572, CHARACTER},
+    {CHARACTER, 0, 69, 573, CHARACTER},
+    {Q_SCRIPTABLE_TOKEN, 0, 0, 0, CHARACTER},
+    {CHARACTER, 0, 82, 575, CHARACTER},
+    {CHARACTER, 0, 79, 576, CHARACTER},
+    {CHARACTER, 0, 80, 577, CHARACTER},
+    {CHARACTER, 0, 69, 578, CHARACTER},
+    {CHARACTER, 0, 82, 579, CHARACTER},
+    {CHARACTER, 0, 84, 580, CHARACTER},
+    {CHARACTER, 0, 89, 581, CHARACTER},
+    {Q_PRIVATE_PROPERTY_TOKEN, 0, 0, 0, CHARACTER},
+    {CHARACTER, 0, 86, 583, CHARACTER},
+    {CHARACTER, 0, 65, 584, CHARACTER},
+    {CHARACTER, 0, 84, 585, CHARACTER},
+    {CHARACTER, 0, 69, 586, CHARACTER},
+    {CHARACTER, 0, 95, 587, CHARACTER},
+    {CHARACTER, 0, 80, 588, CHARACTER},
+    {CHARACTER, 0, 82, 589, CHARACTER},
+    {CHARACTER, 0, 79, 590, CHARACTER},
+    {CHARACTER, 0, 80, 591, CHARACTER},
+    {CHARACTER, 0, 69, 592, CHARACTER},
+    {CHARACTER, 0, 82, 593, CHARACTER},
+    {CHARACTER, 0, 84, 594, CHARACTER},
+    {CHARACTER, 0, 89, 595, CHARACTER},
+    {QT_ANONYMOUS_PRIVATE_PROPERTY_TOKEN, 0, 0, 0, CHARACTER},
+    {CHARACTER, 0, 69, 597, CHARACTER},
+    {CHARACTER, 0, 86, 598, CHARACTER},
+    {CHARACTER, 0, 73, 599, CHARACTER},
+    {CHARACTER, 0, 83, 600, CHARACTER},
+    {CHARACTER, 0, 73, 601, CHARACTER},
+    {CHARACTER, 0, 79, 602, CHARACTER},
+    {CHARACTER, 0, 78, 603, CHARACTER},
     {Q_REVISION_TOKEN, 0, 0, 0, CHARACTER},
-    {CHARACTER, 0, 79, 573, CHARACTER},
-    {CHARACTER, 0, 67, 574, CHARACTER},
-    {CHARACTER, 0, 95, 575, CHARACTER},
-    {CHARACTER, 0, 73, 576, CHARACTER},
-    {CHARACTER, 0, 78, 577, CHARACTER},
-    {CHARACTER, 0, 67, 578, CHARACTER},
-    {CHARACTER, 0, 76, 579, CHARACTER},
-    {CHARACTER, 0, 85, 580, CHARACTER},
-    {CHARACTER, 0, 68, 581, CHARACTER},
-    {CHARACTER, 0, 69, 582, CHARACTER},
+    {CHARACTER, 0, 79, 605, CHARACTER},
+    {CHARACTER, 0, 67, 606, CHARACTER},
+    {CHARACTER, 0, 95, 607, CHARACTER},
+    {CHARACTER, 0, 73, 608, CHARACTER},
+    {CHARACTER, 0, 78, 609, CHARACTER},
+    {CHARACTER, 0, 67, 610, CHARACTER},
+    {CHARACTER, 0, 76, 611, CHARACTER},
+    {CHARACTER, 0, 85, 612, CHARACTER},
+    {CHARACTER, 0, 68, 613, CHARACTER},
+    {CHARACTER, 0, 69, 614, CHARACTER},
     {Q_MOC_INCLUDE_TOKEN, 0, 0, 0, CHARACTER},
     {NEWLINE, 0, 0, 0, NOTOKEN},
     {QUOTE, 0, 0, 0, NOTOKEN},
     {SINGLEQUOTE, 0, 0, 0, NOTOKEN},
     {WHITESPACE, 0, 0, 0, NOTOKEN},
-    {HASH, 0, 35, 588, HASH},
+    {HASH, 0, 35, 620, HASH},
     {PP_HASHHASH, 0, 0, 0, NOTOKEN},
     {BACKSLASH, 0, 0, 0, NOTOKEN},
     {CPP_COMMENT, 0, 0, 0, NOTOKEN},
diff --git a/src/tools/moc/moc.cpp b/src/tools/moc/moc.cpp
index feafe7f6..9e38ec23 100644
--- a/src/tools/moc/moc.cpp
+++ b/src/tools/moc/moc.cpp
@@ -243,7 +243,7 @@ bool Moc::parseEnum(EnumDef *def)
     }
     if (test(COLON)) { // C++11 strongly typed enum
         // enum Foo : unsigned long { ... };
-        parseType(); //ignore the result
+        def->type = normalizeType(parseType().name);
     }
     if (!test(LBRACE))
         return false;
@@ -879,7 +879,10 @@ void Moc::parse()
                         error("Template classes not supported by Q_GADGET");
                     break;
                 case Q_PROPERTY_TOKEN:
-                    parseProperty(&def);
+                    parseProperty(&def, Named);
+                    break;
+                case QT_ANONYMOUS_PROPERTY_TOKEN:
+                    parseProperty(&def, Anonymous);
                     break;
                 case Q_PLUGIN_METADATA_TOKEN:
                     parsePluginData(&def);
@@ -914,7 +917,10 @@ void Moc::parse()
                     parseSlotInPrivate(&def, access);
                     break;
                 case Q_PRIVATE_PROPERTY_TOKEN:
-                    parsePrivateProperty(&def);
+                    parsePrivateProperty(&def, Named);
+                    break;
+                case QT_ANONYMOUS_PRIVATE_PROPERTY_TOKEN:
+                    parsePrivateProperty(&def, Anonymous);
                     break;
                 case ENUM: {
                     EnumDef enumDef;
@@ -976,7 +982,9 @@ void Moc::parse()
             if (!def.pluginData.iid.isEmpty())
                 def.pluginData.metaArgs = metaArgs;
 
-            checkSuperClasses(&def);
+            if (def.hasQObject && !def.superclassList.isEmpty())
+                checkSuperClasses(&def);
+
             checkProperties(&def);
 
             classList += def;
@@ -1096,9 +1104,8 @@ void Moc::generate(FILE *out, FILE *jsonOutput)
     if (!noInclude) {
         if (includePath.size() && !includePath.endsWith('/'))
             includePath += '/';
-        for (int i = 0; i < includeFiles.size(); ++i) {
-            QByteArray inc = includeFiles.at(i);
-            if (inc.at(0) != '<' && inc.at(0) != '"') {
+        for (QByteArray inc : std::as_const(includeFiles)) {
+            if (!inc.isEmpty() && inc.at(0) != '<' && inc.at(0) != '"') {
                 if (includePath.size() && includePath != "./")
                     inc.prepend(includePath);
                 inc = '\"' + inc + '\"';
@@ -1263,7 +1270,7 @@ void Moc::parseSignals(ClassDef *def)
     }
 }
 
-void Moc::createPropertyDef(PropertyDef &propDef, int propertyIndex)
+void Moc::createPropertyDef(PropertyDef &propDef, int propertyIndex, Moc::PropertyMode mode)
 {
     propDef.location = index;
     propDef.relativeIndex = propertyIndex;
@@ -1293,8 +1300,10 @@ void Moc::createPropertyDef(PropertyDef &propDef, int propertyIndex)
 
     propDef.type = type;
 
-    next();
-    propDef.name = lexem();
+    if (mode == Moc::Named) {
+        next();
+        propDef.name = lexem();
+    }
 
     parsePropertyAttributes(propDef);
 }
@@ -1436,11 +1445,11 @@ void Moc::parsePropertyAttributes(PropertyDef &propDef)
     }
 }
 
-void Moc::parseProperty(ClassDef *def)
+void Moc::parseProperty(ClassDef *def, Moc::PropertyMode mode)
 {
     next(LPAREN);
     PropertyDef propDef;
-    createPropertyDef(propDef, int(def->propertyList.size()));
+    createPropertyDef(propDef, int(def->propertyList.size()), mode);
     next(RPAREN);
 
     def->propertyList += propDef;
@@ -1461,9 +1470,11 @@ void Moc::parsePluginData(ClassDef *def)
         } else if (l == "FILE") {
             next(STRING_LITERAL);
             QByteArray metaDataFile = unquotedLexem();
-            QFileInfo fi(QFileInfo(QString::fromLocal8Bit(currentFilenames.top().constData())).dir(), QString::fromLocal8Bit(metaDataFile.constData()));
-            for (int j = 0; j < includes.size() && !fi.exists(); ++j) {
-                const IncludePath &p = includes.at(j);
+            QFileInfo fi(QFileInfo(QString::fromLocal8Bit(currentFilenames.top())).dir(),
+                         QString::fromLocal8Bit(metaDataFile));
+            for (const IncludePath &p : std::as_const(includes)) {
+                if (fi.exists())
+                    break;
                 if (p.isFrameworkPath)
                     continue;
 
@@ -1526,7 +1537,7 @@ QByteArray Moc::parsePropertyAccessor()
     return accessor;
 }
 
-void Moc::parsePrivateProperty(ClassDef *def)
+void Moc::parsePrivateProperty(ClassDef *def, Moc::PropertyMode mode)
 {
     next(LPAREN);
     PropertyDef propDef;
@@ -1534,7 +1545,7 @@ void Moc::parsePrivateProperty(ClassDef *def)
 
     next(COMMA);
 
-    createPropertyDef(propDef, int(def->propertyList.size()));
+    createPropertyDef(propDef, int(def->propertyList.size()), mode);
 
     def->propertyList += propDef;
 }
@@ -1809,7 +1820,8 @@ bool Moc::until(Token target) {
 
 void Moc::checkSuperClasses(ClassDef *def)
 {
-    const QByteArray firstSuperclass = def->superclassList.value(0).first;
+    Q_ASSERT(!def->superclassList.isEmpty());
+    const QByteArray &firstSuperclass = def->superclassList.at(0).first;
 
     if (!knownQObjectClasses.contains(firstSuperclass)) {
         // enable once we /require/ include paths
@@ -1833,8 +1845,7 @@ void Moc::checkSuperClasses(ClassDef *def)
     };
 
     const auto end = def->superclassList.cend();
-    auto it = std::next(def->superclassList.cbegin(),
-                        !def->superclassList.isEmpty() ? 1 : 0);
+    auto it = def->superclassList.cbegin() + 1;
     for (; it != end; ++it) {
         const QByteArray &superClass = it->first;
         if (knownQObjectClasses.contains(superClass)) {
@@ -1894,8 +1905,7 @@ void Moc::checkProperties(ClassDef *cdef)
             continue;
         }
 
-        for (int j = 0; j < cdef->publicList.size(); ++j) {
-            const FunctionDef &f = cdef->publicList.at(j);
+        for (const FunctionDef &f : std::as_const(cdef->publicList)) {
             if (f.name != p.read)
                 continue;
             if (!f.isConst) // get  functions must be const
@@ -2123,6 +2133,8 @@ QJsonObject EnumDef::toJson(const ClassDef &cdef) const
     def["name"_L1] = QString::fromUtf8(name);
     if (!enumName.isEmpty())
         def["alias"_L1] = QString::fromUtf8(enumName);
+    if (!type.isEmpty())
+        def["type"_L1] = QString::fromUtf8(type);
     def["isFlag"_L1] = cdef.enumDeclarations.value(name);
     def["isClass"_L1] = isEnumClass;
 
@@ -2135,4 +2147,23 @@ QJsonObject EnumDef::toJson(const ClassDef &cdef) const
     return def;
 }
 
+QByteArray EnumDef::qualifiedType(const ClassDef *cdef) const
+{
+    if (name == cdef->classname) {
+        // The name of the enclosing namespace is the same as the enum class name
+        if (cdef->qualified.contains("::")) {
+            // QTBUG-112996, fully qualify by using cdef->qualified to disambiguate enum
+            // class name and enclosing namespace, e.g.:
+            // namespace A { namespace B { Q_NAMESPACE; enum class B { }; Q_ENUM_NS(B) } }
+            return cdef->qualified % "::" % name;
+        } else {
+            // Just "B"; otherwise the compiler complains about the type "B::B" inside
+            // "B::staticMetaObject" in the generated code; e.g.:
+            // namespace B { Q_NAMESPACE; enum class B { }; Q_ENUM_NS(B) }
+            return name;
+        }
+    }
+    return cdef->classname % "::" % name;
+}
+
 QT_END_NAMESPACE
diff --git a/src/tools/moc/moc.h b/src/tools/moc/moc.h
index 01d39bc4..b2de6d45 100644
--- a/src/tools/moc/moc.h
+++ b/src/tools/moc/moc.h
@@ -43,10 +43,12 @@ struct EnumDef
 {
     QByteArray name;
     QByteArray enumName;
+    QByteArray type;
     QList<QByteArray> values;
     bool isEnumClass; // c++11 enum class
     EnumDef() : isEnumClass(false) {}
     QJsonObject toJson(const ClassDef &cdef) const;
+    QByteArray qualifiedType(const ClassDef *cdef) const;
 };
 Q_DECLARE_TYPEINFO(EnumDef, Q_RELOCATABLE_TYPE);
 
@@ -102,6 +104,8 @@ Q_DECLARE_TYPEINFO(FunctionDef, Q_RELOCATABLE_TYPE);
 struct PropertyDef
 {
     bool stdCppSet() const {
+        if (name.isEmpty())
+            return false;
         QByteArray s("set");
         s += QtMiscUtils::toAsciiUpper(name[0]);
         s += name.mid(1);
@@ -197,6 +201,8 @@ Q_DECLARE_TYPEINFO(NamespaceDef, Q_RELOCATABLE_TYPE);
 class Moc : public Parser
 {
 public:
+    enum PropertyMode { Named, Anonymous };
+
     Moc()
         : noInclude(false), mustIncludeQPluginH(false), requireCompleteTypes(false)
         {}
@@ -240,9 +246,11 @@ public:
 
     void parseSlots(ClassDef *def, FunctionDef::Access access);
     void parseSignals(ClassDef *def);
-    void parseProperty(ClassDef *def);
+    void parseProperty(ClassDef *def, PropertyMode mode);
     void parsePluginData(ClassDef *def);
-    void createPropertyDef(PropertyDef &def, int propertyIndex);
+
+    void createPropertyDef(PropertyDef &def, int propertyIndex, PropertyMode mode);
+
     void parsePropertyAttributes(PropertyDef &propDef);
     void parseEnumOrFlag(BaseDef *def, bool isFlag);
     void parseFlag(BaseDef *def);
@@ -255,7 +263,7 @@ public:
     void parseMocInclude();
     void parseSlotInPrivate(ClassDef *def, FunctionDef::Access access);
     QByteArray parsePropertyAccessor();
-    void parsePrivateProperty(ClassDef *def);
+    void parsePrivateProperty(ClassDef *def, PropertyMode mode);
 
     void parseFunctionArguments(FunctionDef *def);
 
diff --git a/src/tools/moc/parser.cpp b/src/tools/moc/parser.cpp
index 6b0308fc..f1493518 100644
--- a/src/tools/moc/parser.cpp
+++ b/src/tools/moc/parser.cpp
@@ -14,43 +14,73 @@ Symbol::LexemStore Symbol::lexemStore;
 
 static const char *error_msg = nullptr;
 
-#ifdef Q_CC_MSVC
-#define ErrorFormatString "%s(%d:%d): "
-#else
-#define ErrorFormatString "%s:%d:%d: "
-#endif
+/*! \internal
+    Base implementation for printing diagnostic messages.
 
-static void defaultErrorMsg(const QByteArray &fileName, const Symbol &sym)
+    For example:
+        "/path/to/file:line:column: error: %s\n"
+        '%s' is replaced by \a msg. (Currently "column" is always 1).
+
+    If sym.lineNum is -1, the line and column parts aren't printed:
+        "/path/to/file: error: %s\n"
+
+    \a formatStringSuffix specifies the type of the message e.g.:
+        "error: %s\n"
+        "warning: %s\n"
+        "note: %s\n"
+        "Parse error at %s\n" (from defaultErrorMsg())
+*/
+void Parser::printMsg(QByteArrayView formatStringSuffix, QByteArrayView msg, const Symbol &sym)
 {
-    fprintf(stderr, ErrorFormatString "error: Parse error at \"%s\"\n",
-            fileName.constData(), sym.lineNum, 1, sym.lexem().data());
+    if (sym.lineNum != -1) {
+#ifdef Q_CC_MSVC
+        QByteArray formatString = "%s(%d:%d): " + formatStringSuffix;
+#else
+        QByteArray formatString = "%s:%d:%d: " + formatStringSuffix;
+#endif
+        fprintf(stderr, formatString.constData(),
+                currentFilenames.top().constData(), sym.lineNum, 1, msg.data());
+    } else {
+        QByteArray formatString = "%s: " + formatStringSuffix;
+        fprintf(stderr, formatString.constData(),
+                currentFilenames.top().constData(), msg.data());
+    }
+}
+
+void Parser::defaultErrorMsg(const Symbol &sym)
+{
+    if (sym.lineNum != -1)
+        printMsg("error: Parse error at \"%s\"\n", sym.lexem().data(), sym);
+    else
+        printMsg("error: could not parse file\n", "", sym);
 }
 
 void Parser::error(const Symbol &sym)
 {
-    defaultErrorMsg(currentFilenames.top(), sym);
+    defaultErrorMsg(sym);
     exit(EXIT_FAILURE);
 }
 
-void Parser::error(const char *msg) {
+void Parser::error(const char *msg)
+{
     if (msg || error_msg)
-        fprintf(stderr, ErrorFormatString "error: %s\n",
-                 currentFilenames.top().constData(), symbol().lineNum, 1, msg?msg:error_msg);
+        printMsg("error: %s\n",
+                 msg ? msg : error_msg,
+                 index > 0 ? symbol() : Symbol{});
     else
-        defaultErrorMsg(currentFilenames.top(), symbol());
+        defaultErrorMsg(symbol());
+
     exit(EXIT_FAILURE);
 }
 
 void Parser::warning(const char *msg) {
     if (displayWarnings && msg)
-        fprintf(stderr, ErrorFormatString "warning: %s\n",
-                currentFilenames.top().constData(), qMax(0, index > 0 ? symbol().lineNum : 0), 1, msg);
+        printMsg("warning: %s\n", msg, index > 0 ? symbol() : Symbol{});
 }
 
 void Parser::note(const char *msg) {
     if (displayNotes && msg)
-        fprintf(stderr, ErrorFormatString "note: %s\n",
-                currentFilenames.top().constData(), qMax(0, index > 0 ? symbol().lineNum : 0), 1, msg);
+        printMsg("note: %s\n", msg, index > 0 ? symbol() : Symbol{});
 }
 
 QT_END_NAMESPACE
diff --git a/src/tools/moc/parser.h b/src/tools/moc/parser.h
index 2546370c..7b5c604a 100644
--- a/src/tools/moc/parser.h
+++ b/src/tools/moc/parser.h
@@ -5,6 +5,7 @@
 #define PARSER_H
 
 #include "symbols.h"
+#include <QtCore/qbytearrayview.h>
 
 #include <stack>
 
@@ -48,6 +49,8 @@ public:
     Q_NORETURN void error(const char *msg = nullptr);
     void warning(const char * = nullptr);
     void note(const char * = nullptr);
+    void defaultErrorMsg(const Symbol &sym);
+    void printMsg(QByteArrayView formatStringSuffix, QByteArrayView msg, const Symbol &sym);
 
 };
 
diff --git a/src/tools/moc/preprocessor.cpp b/src/tools/moc/preprocessor.cpp
index 486c9697..eb8eaea2 100644
--- a/src/tools/moc/preprocessor.cpp
+++ b/src/tools/moc/preprocessor.cpp
@@ -654,9 +654,9 @@ Symbols Preprocessor::macroExpandIdentifier(Preprocessor *that, SymbolStack &sym
 
                 const Symbols &arg = arguments.at(index);
                 QByteArray stringified;
-                for (int i = 0; i < arg.size(); ++i) {
-                    stringified += arg.at(i).lexem();
-                }
+                for (const Symbol &sym : arg)
+                    stringified += sym.lexem();
+
                 stringified.replace('"', "\\\"");
                 stringified.prepend('"');
                 stringified.append('"');
@@ -690,8 +690,8 @@ Symbols Preprocessor::macroExpandIdentifier(Preprocessor *that, SymbolStack &sym
 
                 if (index >= 0 && index < arguments.size()) {
                     const Symbols &arg = arguments.at(index);
-                    for (int i = 1; i < arg.size(); ++i)
-                        expansion += arg.at(i);
+                    if (!arg.isEmpty())
+                        expansion.append(arg.cbegin() + 1, arg.cend());
                 }
             }
             mode = Normal;
@@ -1009,8 +1009,10 @@ static QByteArray searchIncludePaths(const QList<Parser::IncludePath> &includepa
         fprintf(stderr, "debug-includes: searching for '%s'\n", include.constData());
     }
 
-    for (int j = 0; j < includepaths.size() && !fi.exists(); ++j) {
-        const Parser::IncludePath &p = includepaths.at(j);
+    for (const Parser::IncludePath &p : includepaths) {
+        if (fi.exists())
+            break;
+
         if (p.isFrameworkPath) {
             const qsizetype slashPos = include.indexOf('/');
             if (slashPos == -1)
diff --git a/src/tools/moc/token.h b/src/tools/moc/token.h
index a58b2e9f..a7080837 100644
--- a/src/tools/moc/token.h
+++ b/src/tools/moc/token.h
@@ -133,6 +133,7 @@ QT_BEGIN_NAMESPACE
     F(Q_NAMESPACE_TOKEN) \
     F(Q_NAMESPACE_EXPORT_TOKEN) \
     F(Q_PROPERTY_TOKEN) \
+    F(QT_ANONYMOUS_PROPERTY_TOKEN) \
     F(Q_PLUGIN_METADATA_TOKEN) \
     F(Q_ENUMS_TOKEN) \
     F(Q_ENUM_TOKEN) \
@@ -154,6 +155,7 @@ QT_BEGIN_NAMESPACE
     F(Q_INVOKABLE_TOKEN) \
     F(Q_SCRIPTABLE_TOKEN) \
     F(Q_PRIVATE_PROPERTY_TOKEN) \
+    F(QT_ANONYMOUS_PRIVATE_PROPERTY_TOKEN) \
     F(Q_REVISION_TOKEN) \
     F(Q_MOC_INCLUDE_TOKEN) \
     F(SPECIAL_TREATMENT_MARK) \
diff --git a/src/tools/moc/util/generate_keywords.cpp b/src/tools/moc/util/generate_keywords.cpp
index fb78ae87..a6c85af9 100644
--- a/src/tools/moc/util/generate_keywords.cpp
+++ b/src/tools/moc/util/generate_keywords.cpp
@@ -193,6 +193,7 @@ static const Keyword keywords[] = {
     { "Q_GADGET", "Q_GADGET_TOKEN" },
     { "Q_GADGET_EXPORT", "Q_GADGET_EXPORT_TOKEN" },
     { "Q_PROPERTY", "Q_PROPERTY_TOKEN" },
+    { "QT_ANONYMOUS_PROPERTY", "QT_ANONYMOUS_PROPERTY_TOKEN" },
     { "Q_PLUGIN_METADATA", "Q_PLUGIN_METADATA_TOKEN" },
     { "Q_ENUMS", "Q_ENUMS_TOKEN" },
     { "Q_ENUM", "Q_ENUM_TOKEN" },
@@ -218,6 +219,7 @@ static const Keyword keywords[] = {
     { "Q_SLOT", "Q_SLOT_TOKEN" },
     { "Q_SCRIPTABLE", "Q_SCRIPTABLE_TOKEN" },
     { "Q_PRIVATE_PROPERTY", "Q_PRIVATE_PROPERTY_TOKEN" },
+    { "QT_ANONYMOUS_PRIVATE_PROPERTY", "QT_ANONYMOUS_PRIVATE_PROPERTY_TOKEN" },
     { "Q_REVISION", "Q_REVISION_TOKEN" },
     { "Q_MOC_INCLUDE", "Q_MOC_INCLUDE_TOKEN" },
     { "\n", "NEWLINE" },
diff --git a/src/tools/qdbusxml2cpp/qdbusxml2cpp.cpp b/src/tools/qdbusxml2cpp/qdbusxml2cpp.cpp
index 74f324e3..2c4fe365 100644
--- a/src/tools/qdbusxml2cpp/qdbusxml2cpp.cpp
+++ b/src/tools/qdbusxml2cpp/qdbusxml2cpp.cpp
@@ -181,22 +181,21 @@ static QString moc(const QString &name)
 
 static QTextStream &writeHeader(QTextStream &ts, bool changesWillBeLost)
 {
-    ts << "/*" << Qt::endl
-       << " * This file was generated by " PROGRAMNAME " version " PROGRAMVERSION << Qt::endl
-       << " * Command line was: " << commandLine << Qt::endl
-       << " *" << Qt::endl
-       << " * " PROGRAMNAME " is " PROGRAMCOPYRIGHT << Qt::endl
-       << " *" << Qt::endl
-       << " * This is an auto-generated file." << Qt::endl;
+    ts << "/*\n"
+          " * This file was generated by " PROGRAMNAME " version " PROGRAMVERSION "\n"
+          " * Command line was: " << commandLine << "\n"
+          " *\n"
+          " * " PROGRAMNAME " is " PROGRAMCOPYRIGHT "\n"
+          " *\n"
+          " * This is an auto-generated file.\n";
 
     if (changesWillBeLost)
-        ts << " * Do not edit! All changes made to it will be lost." << Qt::endl;
+        ts << " * Do not edit! All changes made to it will be lost.\n";
     else
-        ts << " * This file may have been hand-edited. Look for HAND-EDIT comments" << Qt::endl
-           << " * before re-generating it." << Qt::endl;
+        ts << " * This file may have been hand-edited. Look for HAND-EDIT comments\n"
+              " * before re-generating it.\n";
 
-    ts << " */" << Qt::endl
-       << Qt::endl;
+    ts << " */\n\n";
 
     return ts;
 }
@@ -233,16 +232,16 @@ static QByteArray qtTypeName(const QString &where, const QString &signature,
 {
     int type = QDBusMetaType::signatureToMetaType(signature.toLatin1()).id();
     if (type == QMetaType::UnknownType) {
-        QString annotationName = QString::fromLatin1("org.qtproject.QtDBus.QtTypeName");
+        QString annotationName = u"org.qtproject.QtDBus.QtTypeName"_s;
         if (paramId >= 0)
-            annotationName += QString::fromLatin1(".%1%2").arg(QLatin1StringView(direction)).arg(paramId);
+            annotationName += ".%1%2"_L1.arg(QLatin1StringView(direction)).arg(paramId);
         QString qttype = annotations.value(annotationName);
         if (!qttype.isEmpty())
             return std::move(qttype).toLatin1();
 
-        QString oldAnnotationName = QString::fromLatin1("com.trolltech.QtDBus.QtTypeName");
+        QString oldAnnotationName = u"com.trolltech.QtDBus.QtTypeName"_s;
         if (paramId >= 0)
-            oldAnnotationName += QString::fromLatin1(".%1%2").arg(QLatin1StringView(direction)).arg(paramId);
+            oldAnnotationName += ".%1%2"_L1.arg(QLatin1StringView(direction)).arg(paramId);
         qttype = annotations.value(oldAnnotationName);
 
         if (qttype.isEmpty()) {
@@ -413,7 +412,7 @@ static QString propertySetter(const QDBusIntrospection::Property &property)
 
 static QString methodName(const QDBusIntrospection::Method &method)
 {
-    QString name = method.annotations.value(QStringLiteral("org.qtproject.QtDBus.MethodName"));
+    QString name = method.annotations.value(u"org.qtproject.QtDBus.MethodName"_s);
     if (!name.isEmpty())
         return name;
 
@@ -484,77 +483,70 @@ static void writeProxy(const QString &filename, const QDBusIntrospection::Interf
         includeGuard = u"QDBUSXML2CPP_PROXY"_s;
     }
 
-    hs << "#ifndef " << includeGuard << Qt::endl
-       << "#define " << includeGuard << Qt::endl
-       << Qt::endl;
+    hs << "#ifndef " << includeGuard << "\n"
+          "#define " << includeGuard << "\n\n";
 
     // include our stuff:
-    hs << "#include <QtCore/QObject>" << Qt::endl
+    hs << "#include <QtCore/QObject>\n"
        << includeList;
 #if QT_VERSION < QT_VERSION_CHECK(7, 0, 0)
-    hs << "#include <QtDBus/QtDBus>" << Qt::endl;
+    hs << "#include <QtDBus/QtDBus>\n";
 #else
-    hs << "#include <QtDBus/QDBusAbstractInterface>" << Qt::endl;
-    hs << "#include <QtDBus/QDBusPendingReply>" << Qt::endl;
+    hs << "#include <QtDBus/QDBusAbstractInterface>\n"
+          "#include <QtDBus/QDBusPendingReply>\n";
 #endif
 
     for (const QString &include : std::as_const(includes)) {
-        hs << "#include \"" << include << "\"" << Qt::endl;
+        hs << "#include \"" << include << "\"\n";
         if (headerName.isEmpty())
-            cs << "#include \"" << include << "\"" << Qt::endl;
+            cs << "#include \"" << include << "\"\n";
     }
 
     for (const QString &include : std::as_const(globalIncludes)) {
-        hs << "#include <" << include << ">" << Qt::endl;
+        hs << "#include <" << include << ">\n";
         if (headerName.isEmpty())
-            cs << "#include <" << include << ">" << Qt::endl;
+            cs << "#include <" << include << ">\n";
     }
 
-    hs << Qt::endl;
+    hs << "\n";
 
     if (cppName != headerName) {
         if (!headerName.isEmpty() && headerName != "-"_L1)
-            cs << "#include \"" << headerName << "\"" << Qt::endl << Qt::endl;
+            cs << "#include \"" << headerName << "\"\n\n";
     }
 
     for (const QDBusIntrospection::Interface *interface : interfaces) {
         QString className = classNameForInterface(interface->name, Proxy);
 
         // comment:
-        hs << "/*" << Qt::endl
-           << " * Proxy class for interface " << interface->name << Qt::endl
-           << " */" << Qt::endl;
-        cs << "/*" << Qt::endl
-           << " * Implementation of interface class " << className << Qt::endl
-           << " */" << Qt::endl
-           << Qt::endl;
+        hs << "/*\n"
+              " * Proxy class for interface " << interface->name << "\n"
+              " */\n";
+        cs << "/*\n"
+              " * Implementation of interface class " << className << "\n"
+              " */\n\n";
 
         // class header:
-        hs << "class " << className << ": public QDBusAbstractInterface" << Qt::endl
-           << "{" << Qt::endl
-           << "    Q_OBJECT" << Qt::endl;
+        hs << "class " << className << ": public QDBusAbstractInterface\n"
+              "{\n"
+              "    Q_OBJECT\n";
 
         // the interface name
-        hs << "public:" << Qt::endl
-           << "    static inline const char *staticInterfaceName()" << Qt::endl
-           << "    { return \"" << interface->name << "\"; }" << Qt::endl
-           << Qt::endl;
+        hs << "public:\n"
+              "    static inline const char *staticInterfaceName()\n"
+              "    { return \"" << interface->name << "\"; }\n\n";
 
         // constructors/destructors:
-        hs << "public:" << Qt::endl
-           << "    " << className << "(const QString &service, const QString &path, const QDBusConnection &connection, QObject *parent = nullptr);" << Qt::endl
-           << Qt::endl
-           << "    ~" << className << "();" << Qt::endl
-           << Qt::endl;
-        cs << className << "::" << className << "(const QString &service, const QString &path, const QDBusConnection &connection, QObject *parent)" << Qt::endl
-           << "    : QDBusAbstractInterface(service, path, staticInterfaceName(), connection, parent)" << Qt::endl
-           << "{" << Qt::endl
-           << "}" << Qt::endl
-           << Qt::endl
-           << className << "::~" << className << "()" << Qt::endl
-           << "{" << Qt::endl
-           << "}" << Qt::endl
-           << Qt::endl;
+        hs << "public:\n"
+              "    " << className << "(const QString &service, const QString &path, const QDBusConnection &connection, QObject *parent = nullptr);\n\n"
+              "    ~" << className << "();\n\n";
+        cs << className << "::" << className << "(const QString &service, const QString &path, const QDBusConnection &connection, QObject *parent)\n"
+              "    : QDBusAbstractInterface(service, path, staticInterfaceName(), connection, parent)\n"
+              "{\n"
+              "}\n\n"
+           << className << "::~" << className << "()\n"
+              "{\n"
+              "}\n\n";
 
         // properties:
         for (const QDBusIntrospection::Property &property : interface->properties) {
@@ -574,27 +566,27 @@ static void writeProxy(const QString &filename, const QDBusIntrospection::Interf
                 // it's writeable
                 hs << " WRITE " << setter;
 
-            hs << ")" << Qt::endl;
+            hs << ")\n";
 
             // getter:
             if (property.access != QDBusIntrospection::Property::Write) {
-                hs << "    inline " << type << " " << getter << "() const" << Qt::endl
-                    << "    { return qvariant_cast< " << type << " >(property(\""
-                    << property.name << "\")); }" << Qt::endl;
+                hs << "    inline " << type << " " << getter << "() const\n"
+                      "    { return qvariant_cast< " << type << " >(property(\""
+                   << property.name << "\")); }\n";
             }
 
             // setter:
             if (property.access != QDBusIntrospection::Property::Read) {
-                hs << "    inline void " << setter << "(" << constRefArg(type) << "value)" << Qt::endl
-                   << "    { setProperty(\"" << property.name
-                   << "\", QVariant::fromValue(value)); }" << Qt::endl;
+                hs << "    inline void " << setter << "(" << constRefArg(type) << "value)\n"
+                      "    { setProperty(\"" << property.name
+                   << "\", QVariant::fromValue(value)); }\n";
             }
 
-            hs << Qt::endl;
+            hs << "\n";
         }
 
         // methods:
-        hs << "public Q_SLOTS: // METHODS" << Qt::endl;
+        hs << "public Q_SLOTS: // METHODS\n";
         for (const QDBusIntrospection::Method &method : interface->methods) {
             bool isDeprecated = method.annotations.value("org.freedesktop.DBus.Deprecated"_L1) == "true"_L1;
             bool isNoReply =
@@ -627,26 +619,26 @@ static void writeProxy(const QString &filename, const QDBusIntrospection::Interf
             QStringList argNames = makeArgNames(method.inputArgs);
             writeArgList(hs, argNames, method.annotations, method.inputArgs);
 
-            hs << ")" << Qt::endl
-               << "    {" << Qt::endl
-               << "        QList<QVariant> argumentList;" << Qt::endl;
+            hs << ")\n"
+                  "    {\n"
+                  "        QList<QVariant> argumentList;\n";
 
             if (!method.inputArgs.isEmpty()) {
                 hs << "        argumentList";
                 for (qsizetype argPos = 0; argPos < method.inputArgs.size(); ++argPos)
                     hs << " << QVariant::fromValue(" << argNames.at(argPos) << ')';
-                hs << ";" << Qt::endl;
+                hs << ";\n";
             }
 
             if (isNoReply)
                 hs << "        callWithArgumentList(QDBus::NoBlock, "
-                   <<  "QStringLiteral(\"" << method.name << "\"), argumentList);" << Qt::endl;
+                      "QStringLiteral(\"" << method.name << "\"), argumentList);\n";
             else
                 hs << "        return asyncCallWithArgumentList(QStringLiteral(\""
-                   << method.name << "\"), argumentList);" << Qt::endl;
+                   << method.name << "\"), argumentList);\n";
 
             // close the function:
-            hs << "    }" << Qt::endl;
+            hs << "    }\n";
 
             if (method.outputArgs.size() > 1) {
                 // generate the old-form QDBusReply methods with multiple incoming parameters
@@ -659,40 +651,40 @@ static void writeProxy(const QString &filename, const QDBusIntrospection::Interf
                 QStringList argNames = makeArgNames(method.inputArgs, method.outputArgs);
                 writeArgList(hs, argNames, method.annotations, method.inputArgs, method.outputArgs);
 
-                hs << ")" << Qt::endl
-                   << "    {" << Qt::endl
-                   << "        QList<QVariant> argumentList;" << Qt::endl;
+                hs << ")\n"
+                      "    {\n"
+                      "        QList<QVariant> argumentList;\n";
 
                 qsizetype argPos = 0;
                 if (!method.inputArgs.isEmpty()) {
                     hs << "        argumentList";
                     for (argPos = 0; argPos < method.inputArgs.size(); ++argPos)
                         hs << " << QVariant::fromValue(" << argNames.at(argPos) << ')';
-                    hs << ";" << Qt::endl;
+                    hs << ";\n";
                 }
 
                 hs << "        QDBusMessage reply = callWithArgumentList(QDBus::Block, "
-                   <<  "QStringLiteral(\"" << method.name << "\"), argumentList);" << Qt::endl;
+                      "QStringLiteral(\"" << method.name << "\"), argumentList);\n";
 
                 argPos++;
                 hs << "        if (reply.type() == QDBusMessage::ReplyMessage && reply.arguments().size() == "
-                   << method.outputArgs.size() << ") {" << Qt::endl;
+                   << method.outputArgs.size() << ") {\n";
 
                 // yes, starting from 1
                 for (qsizetype i = 1; i < method.outputArgs.size(); ++i)
                     hs << "            " << argNames.at(argPos++) << " = qdbus_cast<"
                        << templateArg(qtTypeName(method.outputArgs.at(i).name, method.outputArgs.at(i).type,
                                                  method.annotations, i, "Out"))
-                       << ">(reply.arguments().at(" << i << "));" << Qt::endl;
-                hs << "        }" << Qt::endl
-                   << "        return reply;" << Qt::endl
-                   << "    }" << Qt::endl;
+                       << ">(reply.arguments().at(" << i << "));\n";
+                hs << "        }\n"
+                      "        return reply;\n"
+                      "    }\n";
             }
 
-            hs << Qt::endl;
+            hs << "\n";
         }
 
-        hs << "Q_SIGNALS: // SIGNALS" << Qt::endl;
+        hs << "Q_SIGNALS: // SIGNALS\n";
         for (const QDBusIntrospection::Signal &signal : interface->signals_) {
             hs << "    ";
             if (signal.annotations.value("org.freedesktop.DBus.Deprecated"_L1) == "true"_L1)
@@ -703,12 +695,11 @@ static void writeProxy(const QString &filename, const QDBusIntrospection::Interf
             QStringList argNames = makeArgNames(signal.outputArgs);
             writeSignalArgList(hs, argNames, signal.annotations, signal.outputArgs);
 
-            hs << ");" << Qt::endl; // finished for header
+            hs << ");\n"; // finished for header
         }
 
         // close the class:
-        hs << "};" << Qt::endl
-           << Qt::endl;
+        hs << "};\n\n";
     }
 
     if (!skipNamespaces) {
@@ -730,17 +721,17 @@ static void writeProxy(const QString &filename, const QDBusIntrospection::Interf
             // i parts matched
             // close last.arguments().size() - i namespaces:
             for (qsizetype j = i; j < last.size(); ++j)
-                hs << QString((last.size() - j - 1 + i) * 2, u' ') << "}" << Qt::endl;
+                hs << QString((last.size() - j - 1 + i) * 2, u' ') << "}\n";
 
             // open current.arguments().size() - i namespaces
             for (qsizetype j = i; j < current.size(); ++j)
-                hs << QString(j * 2, u' ') << "namespace " << current.at(j) << " {" << Qt::endl;
+                hs << QString(j * 2, u' ') << "namespace " << current.at(j) << " {\n";
 
             // add this class:
             if (!name.isEmpty()) {
                 hs << QString(current.size() * 2, u' ')
                    << "using " << name << " = ::" << classNameForInterface(it->constData()->name, Proxy)
-                   << ";" << Qt::endl;
+                   << ";\n";
             }
 
             if (it == interfaces.constEnd())
@@ -751,12 +742,12 @@ static void writeProxy(const QString &filename, const QDBusIntrospection::Interf
     }
 
     // close the include guard
-    hs << "#endif" << Qt::endl;
+    hs << "#endif\n";
 
     QString mocName = moc(filename);
     if (includeMocs && !mocName.isEmpty())
-        cs << Qt::endl
-           << "#include \"" << mocName << "\"" << Qt::endl;
+        cs << "\n"
+              "#include \"" << mocName << "\"\n";
 
     cs.flush();
     hs.flush();
@@ -803,47 +794,46 @@ static void writeAdaptor(const QString &filename, const QDBusIntrospection::Inte
         includeGuard = u"QDBUSXML2CPP_ADAPTOR"_s;
     }
 
-    hs << "#ifndef " << includeGuard << Qt::endl
-       << "#define " << includeGuard << Qt::endl
-       << Qt::endl;
+    hs << "#ifndef " << includeGuard << "\n"
+          "#define " << includeGuard << "\n\n";
 
     // include our stuff:
-    hs << "#include <QtCore/QObject>" << Qt::endl;
+    hs << "#include <QtCore/QObject>\n";
     if (cppName == headerName)
-        hs << "#include <QtCore/QMetaObject>" << Qt::endl
-           << "#include <QtCore/QVariant>" << Qt::endl;
+        hs << "#include <QtCore/QMetaObject>\n"
+              "#include <QtCore/QVariant>\n";
 #if QT_VERSION < QT_VERSION_CHECK(7, 0, 0)
-    hs << "#include <QtDBus/QtDBus>" << Qt::endl;
+    hs << "#include <QtDBus/QtDBus>\n";
 #else
-    hs << "#include <QtDBus/QDBusAbstractAdaptor>" << Qt::endl;
-    hs << "#include <QtDBus/QDBusObjectPath>" << Qt::endl;
+    hs << "#include <QtDBus/QDBusAbstractAdaptor>\n"
+          "#include <QtDBus/QDBusObjectPath>\n";
 #endif
 
     for (const QString &include : std::as_const(includes)) {
-        hs << "#include \"" << include << "\"" << Qt::endl;
+        hs << "#include \"" << include << "\"\n";
         if (headerName.isEmpty())
-            cs << "#include \"" << include << "\"" << Qt::endl;
+            cs << "#include \"" << include << "\"\n";
     }
 
     for (const QString &include : std::as_const(globalIncludes)) {
-        hs << "#include <" << include << ">" << Qt::endl;
+        hs << "#include <" << include << ">\n";
         if (headerName.isEmpty())
-            cs << "#include <" << include << ">" << Qt::endl;
+            cs << "#include <" << include << ">\n";
     }
 
     if (cppName != headerName) {
         if (!headerName.isEmpty() && headerName != "-"_L1)
-            cs << "#include \"" << headerName << "\"" << Qt::endl;
+            cs << "#include \"" << headerName << "\"\n";
 
-        cs << "#include <QtCore/QMetaObject>" << Qt::endl
+        cs << "#include <QtCore/QMetaObject>\n"
            << includeList
-           << Qt::endl;
+           << "\n";
         hs << forwardDeclarations;
     } else {
         hs << includeList;
     }
 
-    hs << Qt::endl;
+    hs << "\n";
 
     QString parent = parentClassName;
     if (parentClassName.isEmpty())
@@ -853,47 +843,42 @@ static void writeAdaptor(const QString &filename, const QDBusIntrospection::Inte
         QString className = classNameForInterface(interface->name, Adaptor);
 
         // comment:
-        hs << "/*" << Qt::endl
-           << " * Adaptor class for interface " << interface->name << Qt::endl
-           << " */" << Qt::endl;
-        cs << "/*" << Qt::endl
-           << " * Implementation of adaptor class " << className << Qt::endl
-           << " */" << Qt::endl
-           << Qt::endl;
+        hs << "/*\n"
+              " * Adaptor class for interface " << interface->name << "\n"
+              " */\n";
+        cs << "/*\n"
+              " * Implementation of adaptor class " << className << "\n"
+              " */\n\n";
 
         // class header:
-        hs << "class " << className << ": public QDBusAbstractAdaptor" << Qt::endl
-           << "{" << Qt::endl
-           << "    Q_OBJECT" << Qt::endl
-           << "    Q_CLASSINFO(\"D-Bus Interface\", \"" << interface->name << "\")" << Qt::endl
-           << "    Q_CLASSINFO(\"D-Bus Introspection\", \"\"" << Qt::endl
+        hs << "class " << className << ": public QDBusAbstractAdaptor\n"
+              "{\n"
+              "    Q_OBJECT\n"
+              "    Q_CLASSINFO(\"D-Bus Interface\", \"" << interface->name << "\")\n"
+              "    Q_CLASSINFO(\"D-Bus Introspection\", \"\"\n"
            << stringify(interface->introspection)
-           << "        \"\")" << Qt::endl
-           << "public:" << Qt::endl
-           << "    " << className << "(" << parent << " *parent);" << Qt::endl
-           << "    virtual ~" << className << "();" << Qt::endl
-           << Qt::endl;
+           << "        \"\")\n"
+              "public:\n"
+              "    " << className << "(" << parent << " *parent);\n"
+              "    virtual ~" << className << "();\n\n";
 
         if (!parentClassName.isEmpty())
-            hs << "    inline " << parent << " *parent() const" << Qt::endl
-               << "    { return static_cast<" << parent << " *>(QObject::parent()); }" << Qt::endl
-               << Qt::endl;
+            hs << "    inline " << parent << " *parent() const\n"
+                  "    { return static_cast<" << parent << " *>(QObject::parent()); }\n\n";
 
         // constructor/destructor
-        cs << className << "::" << className << "(" << parent << " *parent)" << Qt::endl
-           << "    : QDBusAbstractAdaptor(parent)" << Qt::endl
-           << "{" << Qt::endl
-           << "    // constructor" << Qt::endl
-           << "    setAutoRelaySignals(true);" << Qt::endl
-           << "}" << Qt::endl
-           << Qt::endl
-           << className << "::~" << className << "()" << Qt::endl
-           << "{" << Qt::endl
-           << "    // destructor" << Qt::endl
-           << "}" << Qt::endl
-           << Qt::endl;
+        cs << className << "::" << className << "(" << parent << " *parent)\n"
+              "    : QDBusAbstractAdaptor(parent)\n"
+              "{\n"
+              "    // constructor\n"
+              "    setAutoRelaySignals(true);\n"
+              "}\n\n"
+           << className << "::~" << className << "()\n"
+              "{\n"
+              "    // destructor\n"
+              "}\n\n";
 
-        hs << "public: // PROPERTIES" << Qt::endl;
+        hs << "public: // PROPERTIES\n";
         for (const QDBusIntrospection::Property &property : interface->properties) {
             QByteArray type = qtTypeName(property.name, property.type, property.annotations);
             QString constRefType = constRefArg(type);
@@ -905,38 +890,36 @@ static void writeAdaptor(const QString &filename, const QDBusIntrospection::Inte
                 hs << " READ " << getter;
             if (property.access != QDBusIntrospection::Property::Read)
                 hs << " WRITE " << setter;
-            hs << ")" << Qt::endl;
+            hs << ")\n";
 
             // getter:
             if (property.access != QDBusIntrospection::Property::Write) {
-                hs << "    " << type << " " << getter << "() const;" << Qt::endl;
+                hs << "    " << type << " " << getter << "() const;\n";
                 cs << type << " "
-                   << className << "::" << getter << "() const" << Qt::endl
-                   << "{" << Qt::endl
-                   << "    // get the value of property " << property.name << Qt::endl
-                   << "    return qvariant_cast< " << type <<" >(parent()->property(\"" << property.name << "\"));" << Qt::endl
-                   << "}" << Qt::endl
-                   << Qt::endl;
+                   << className << "::" << getter << "() const\n"
+                      "{\n"
+                      "    // get the value of property " << property.name << "\n"
+                      "    return qvariant_cast< " << type <<" >(parent()->property(\"" << property.name << "\"));\n"
+                      "}\n\n";
             }
 
             // setter
             if (property.access != QDBusIntrospection::Property::Read) {
-                hs << "    void " << setter << "(" << constRefType << "value);" << Qt::endl;
-                cs << "void " << className << "::" << setter << "(" << constRefType << "value)" << Qt::endl
-                   << "{" << Qt::endl
-                   << "    // set the value of property " << property.name << Qt::endl
-                   << "    parent()->setProperty(\"" << property.name << "\", QVariant::fromValue(value";
+                hs << "    void " << setter << "(" << constRefType << "value);\n";
+                cs << "void " << className << "::" << setter << "(" << constRefType << "value)\n"
+                      "{\n"
+                      "    // set the value of property " << property.name << "\n"
+                      "    parent()->setProperty(\"" << property.name << "\", QVariant::fromValue(value";
                 if (constRefType.contains("QDBusVariant"_L1))
                     cs << ".variant()";
-                cs << "));" << Qt::endl
-                   << "}" << Qt::endl
-                   << Qt::endl;
+                cs << "));\n"
+                      "}\n\n";
             }
 
-            hs << Qt::endl;
+            hs << "\n";
         }
 
-        hs << "public Q_SLOTS: // METHODS" << Qt::endl;
+        hs << "public Q_SLOTS: // METHODS\n";
         for (const QDBusIntrospection::Method &method : interface->methods) {
             bool isNoReply =
                 method.annotations.value(ANNOTATION_NO_WAIT ""_L1) == "true"_L1;
@@ -947,9 +930,6 @@ static void writeAdaptor(const QString &filename, const QDBusIntrospection::Inte
             }
 
             hs << "    ";
-            if (method.annotations.value("org.freedesktop.DBus.Deprecated"_L1) == "true"_L1)
-                hs << "Q_DECL_DEPRECATED ";
-
             QByteArray returnType;
             if (isNoReply) {
                 hs << "Q_NOREPLY void ";
@@ -972,10 +952,10 @@ static void writeAdaptor(const QString &filename, const QDBusIntrospection::Inte
             writeArgList(hs, argNames, method.annotations, method.inputArgs, method.outputArgs);
             writeArgList(cs, argNames, method.annotations, method.inputArgs, method.outputArgs);
 
-            hs << ");" << Qt::endl; // finished for header
-            cs << ")" << Qt::endl
-               << "{" << Qt::endl
-               << "    // handle method call " << interface->name << "." << methodName(method) << Qt::endl;
+            hs << ");\n"; // finished for header
+            cs << ")\n"
+                  "{\n"
+                  "    // handle method call " << interface->name << "." << methodName(method) << "\n";
 
             // make the call
             bool usingInvokeMethod = false;
@@ -987,7 +967,7 @@ static void writeAdaptor(const QString &filename, const QDBusIntrospection::Inte
                 // we are using QMetaObject::invokeMethod
                 if (!returnType.isEmpty())
                     cs << "    " << returnType << " " << argNames.at(method.inputArgs.size())
-                       << ";" << Qt::endl;
+                       << ";\n";
 
                 static const char invoke[] = "    QMetaObject::invokeMethod(parent(), \"";
                 cs << invoke << name << "\"";
@@ -1004,10 +984,10 @@ static void writeAdaptor(const QString &filename, const QDBusIntrospection::Inte
                                      i, "In")
                        << ", " << argNames.at(i) << ")";
 
-                cs << ");" << Qt::endl;
+                cs << ");\n";
 
                 if (!returnType.isEmpty())
-                    cs << "    return " << argNames.at(method.inputArgs.size()) << ";" << Qt::endl;
+                    cs << "    return " << argNames.at(method.inputArgs.size()) << ";\n";
             } else {
                 if (parentClassName.isEmpty())
                     cs << "    //";
@@ -1035,38 +1015,32 @@ static void writeAdaptor(const QString &filename, const QDBusIntrospection::Inte
                     first = false;
                 }
 
-                cs << ");" << Qt::endl;
+                cs << ");\n";
             }
-            cs << "}" << Qt::endl
-               << Qt::endl;
+            cs << "}\n\n";
         }
 
-        hs << "Q_SIGNALS: // SIGNALS" << Qt::endl;
+        hs << "Q_SIGNALS: // SIGNALS\n";
         for (const QDBusIntrospection::Signal &signal : interface->signals_) {
-            hs << "    ";
-            if (signal.annotations.value("org.freedesktop.DBus.Deprecated"_L1) == "true"_L1)
-                hs << "Q_DECL_DEPRECATED ";
-
-            hs << "void " << signal.name << "(";
+            hs << "    void " << signal.name << "(";
 
             QStringList argNames = makeArgNames(signal.outputArgs);
             writeSignalArgList(hs, argNames, signal.annotations, signal.outputArgs);
 
-            hs << ");" << Qt::endl; // finished for header
+            hs << ");\n"; // finished for header
         }
 
         // close the class:
-        hs << "};" << Qt::endl
-           << Qt::endl;
+        hs << "};\n\n";
     }
 
     // close the include guard
-    hs << "#endif" << Qt::endl;
+    hs << "#endif\n";
 
     QString mocName = moc(filename);
     if (includeMocs && !mocName.isEmpty())
-        cs << Qt::endl
-           << "#include \"" << mocName << "\"" << Qt::endl;
+        cs << "\n"
+              "#include \"" << mocName << "\"\n";
 
     cs.flush();
     hs.flush();
@@ -1104,44 +1078,46 @@ int main(int argc, char **argv)
 
     parser.addHelpOption();
     parser.addVersionOption();
-    parser.addPositionalArgument(QStringLiteral("xml-or-xml-file"), QStringLiteral("XML file to use."));
-    parser.addPositionalArgument(QStringLiteral("interfaces"), QStringLiteral("List of interfaces to use."),
-                QStringLiteral("[interfaces ...]"));
+    parser.addPositionalArgument(u"xml-or-xml-file"_s, u"XML file to use."_s);
+    parser.addPositionalArgument(u"interfaces"_s, u"List of interfaces to use."_s,
+                u"[interfaces ...]"_s);
 
-    QCommandLineOption adapterCodeOption(QStringList() << QStringLiteral("a") << QStringLiteral("adaptor"),
-                QStringLiteral("Write the adaptor code to <filename>"), QStringLiteral("filename"));
+    QCommandLineOption adapterCodeOption(QStringList{u"a"_s, u"adaptor"_s},
+                u"Write the adaptor code to <filename>"_s, u"filename"_s);
     parser.addOption(adapterCodeOption);
 
-    QCommandLineOption classNameOption(QStringList() << QStringLiteral("c") << QStringLiteral("classname"),
-                QStringLiteral("Use <classname> as the class name for the generated classes"), QStringLiteral("classname"));
+    QCommandLineOption classNameOption(QStringList{u"c"_s, u"classname"_s},
+                u"Use <classname> as the class name for the generated classes. "
+                u"This option can only be used when processing a single interface."_s,
+                u"classname"_s);
     parser.addOption(classNameOption);
 
-    QCommandLineOption addIncludeOption(QStringList() << QStringLiteral("i") << QStringLiteral("include"),
-                QStringLiteral("Add #include \"filename\" to the output"), QStringLiteral("filename"));
+    QCommandLineOption addIncludeOption(QStringList{u"i"_s, u"include"_s},
+                u"Add #include \"filename\" to the output"_s, u"filename"_s);
     parser.addOption(addIncludeOption);
 
-    QCommandLineOption addGlobalIncludeOption(QStringList() << QStringLiteral("I") << QStringLiteral("global-include"),
-                QStringLiteral("Add #include <filename> to the output"), QStringLiteral("filename"));
+    QCommandLineOption addGlobalIncludeOption(QStringList{u"I"_s, u"global-include"_s},
+                u"Add #include <filename> to the output"_s, u"filename"_s);
     parser.addOption(addGlobalIncludeOption);
 
-    QCommandLineOption adapterParentOption(QStringLiteral("l"),
-                QStringLiteral("When generating an adaptor, use <classname> as the parent class"), QStringLiteral("classname"));
+    QCommandLineOption adapterParentOption(u"l"_s,
+                u"When generating an adaptor, use <classname> as the parent class"_s, u"classname"_s);
     parser.addOption(adapterParentOption);
 
-    QCommandLineOption mocIncludeOption(QStringList() << QStringLiteral("m") << QStringLiteral("moc"),
-                QStringLiteral("Generate #include \"filename.moc\" statements in the .cpp files"));
+    QCommandLineOption mocIncludeOption(QStringList{u"m"_s, u"moc"_s},
+                u"Generate #include \"filename.moc\" statements in the .cpp files"_s);
     parser.addOption(mocIncludeOption);
 
-    QCommandLineOption noNamespaceOption(QStringList() << QStringLiteral("N") << QStringLiteral("no-namespaces"),
-                QStringLiteral("Don't use namespaces"));
+    QCommandLineOption noNamespaceOption(QStringList{u"N"_s, u"no-namespaces"_s},
+                u"Don't use namespaces"_s);
     parser.addOption(noNamespaceOption);
 
-    QCommandLineOption proxyCodeOption(QStringList() << QStringLiteral("p") << QStringLiteral("proxy"),
-                QStringLiteral("Write the proxy code to <filename>"), QStringLiteral("filename"));
+    QCommandLineOption proxyCodeOption(QStringList{u"p"_s, u"proxy"_s},
+                u"Write the proxy code to <filename>"_s, u"filename"_s);
     parser.addOption(proxyCodeOption);
 
-    QCommandLineOption verboseOption(QStringList() << QStringLiteral("V") << QStringLiteral("verbose"),
-                QStringLiteral("Be verbose."));
+    QCommandLineOption verboseOption(QStringList{u"V"_s, u"verbose"_s},
+                u"Be verbose."_s);
     parser.addOption(verboseOption);
 
     parser.process(app);
@@ -1168,11 +1144,16 @@ int main(int argc, char **argv)
     }
 
     if (verbose)
-        QLoggingCategory::setFilterRules(QStringLiteral("dbus.parser.debug=true"));
+        QLoggingCategory::setFilterRules(u"dbus.parser.debug=true"_s);
 
     QDBusIntrospection::Interfaces interfaces = readInput();
     cleanInterfaces(interfaces);
 
+    if (!globalClassName.isEmpty() && interfaces.count() != 1) {
+        qCritical("Option -c/--classname can only be used with a single interface.\n");
+        return 1;
+    }
+
     QStringList args = app.arguments();
     args.removeFirst();
     commandLine = PROGRAMNAME " "_L1 + args.join(u' ');
diff --git a/src/tools/qlalr/cppgenerator.cpp b/src/tools/qlalr/cppgenerator.cpp
index 3c426473..c859df36 100644
--- a/src/tools/qlalr/cppgenerator.cpp
+++ b/src/tools/qlalr/cppgenerator.cpp
@@ -193,7 +193,15 @@ void CppGenerator::operator () ()
     {
       if (shift_reduce_conflict_count != grammar.expected_shift_reduce
           || reduce_reduce_conflict_count != grammar.expected_reduce_reduce)
-        qerr() << "*** Conflicts: " << shift_reduce_conflict_count << " shift/reduce, " << reduce_reduce_conflict_count << " reduce/reduce" << Qt::endl;
+        {
+          qerr() << "*** Conflicts: " << shift_reduce_conflict_count << " shift/reduce, " << reduce_reduce_conflict_count << " reduce/reduce" << Qt::endl;
+          if (warnings_are_errors)
+            {
+              qerr() << "qlalr: error: warning occurred, treating as error due to "
+                        "--exit-on-warn." << Qt::endl;
+              exit(2);
+            }
+        }
 
       if (verbose)
         qout() << Qt::endl << "*** Conflicts: " << shift_reduce_conflict_count << " shift/reduce, " << reduce_reduce_conflict_count << " reduce/reduce" << Qt::endl
@@ -220,7 +228,15 @@ void CppGenerator::operator () ()
       if (! used_rules.testBit (i))
         {
           if (rule != grammar.goal)
-            qerr() << "*** Warning: Rule ``" << *rule << "'' is useless!" << Qt::endl;
+            {
+              qerr() << "*** Warning: Rule ``" << *rule << "'' is useless!" << Qt::endl;
+              if (warnings_are_errors)
+                {
+                  qerr() << "qlalr: error: warning occurred, treating as error due to "
+                            "--exit-on-warn." << Qt::endl;
+                  exit(2);
+                }
+            }
         }
     }
 
diff --git a/src/tools/qlalr/cppgenerator.h b/src/tools/qlalr/cppgenerator.h
index b83dc139..66ae781b 100644
--- a/src/tools/qlalr/cppgenerator.h
+++ b/src/tools/qlalr/cppgenerator.h
@@ -20,7 +20,8 @@ public:
     aut (aut),
     verbose (verbose),
     debug_info (false),
-    copyright (false) {}
+    copyright (false),
+    warnings_are_errors(false) {}
 
   void operator () ();
 
@@ -29,6 +30,8 @@ public:
 
   void setCopyright (bool t) { copyright = t; }
 
+  void setWarningsAreErrors (bool e) { warnings_are_errors = e; }
+
 private:
   void generateDecl (QTextStream &out);
   void generateImpl (QTextStream &out);
@@ -51,6 +54,7 @@ private:
   int non_terminal_count;
   bool debug_info;
   bool copyright;
+  bool warnings_are_errors;
   Compress compressed_action;
   Compress compressed_goto;
   QList<int> count;
diff --git a/src/tools/qlalr/main.cpp b/src/tools/qlalr/main.cpp
index 8d339173..04ae54d9 100644
--- a/src/tools/qlalr/main.cpp
+++ b/src/tools/qlalr/main.cpp
@@ -28,7 +28,8 @@ static void help_me ()
        << "  --no-debug\t\tno debug information" << Qt::endl
        << "  --no-lines\t\tno #line directives" << Qt::endl
        << "  --dot\t\t\tgenerate a graph" << Qt::endl
-       << "  --qt\t\tadd the Qt copyright header and Qt-specific types and macros" << Qt::endl
+       << "  --qt\t\t\tadd the Qt copyright header and Qt-specific types and macros" << Qt::endl
+       << "  --exit-on-warn\texit with status code 2 on warning" << Qt::endl
        << Qt::endl;
   exit (0);
 }
@@ -42,6 +43,7 @@ int main (int argc, char *argv[])
   bool no_lines = false;
   bool debug_info = true;
   bool qt_copyright = false;
+  bool warnings_are_errors = false;
   QString file_name;
 
   const QStringList args = app.arguments().mid(1);
@@ -64,6 +66,9 @@ int main (int argc, char *argv[])
       else if (arg == "--qt"_L1)
         qt_copyright = true;
 
+      else if (arg == "--exit-on-warn"_L1)
+        warnings_are_errors = true;
+
       else if (file_name.isEmpty ())
         file_name = arg;
 
@@ -104,6 +109,7 @@ int main (int argc, char *argv[])
   CppGenerator gen (p, grammar, aut, generate_report);
   gen.setDebugInfo (debug_info);
   gen.setCopyright (qt_copyright);
+  gen.setWarningsAreErrors (warnings_are_errors);
   gen ();
 
   if (generate_dot)
diff --git a/src/tools/rcc/rcc.cpp b/src/tools/rcc/rcc.cpp
index a87f15de..e461ab62 100644
--- a/src/tools/rcc/rcc.cpp
+++ b/src/tools/rcc/rcc.cpp
@@ -75,15 +75,18 @@ public:
         CompressedZstd = 0x04
     };
 
-    RCCFileInfo(const QString &name = QString(), const QFileInfo &fileInfo = QFileInfo(),
-                QLocale::Language language = QLocale::C,
-                QLocale::Territory territory = QLocale::AnyTerritory,
-                uint flags = NoFlags,
-                RCCResourceLibrary::CompressionAlgorithm compressAlgo = RCCResourceLibrary::CompressionAlgorithm::Best,
-                int compressLevel = CONSTANT_COMPRESSLEVEL_DEFAULT,
-                int compressThreshold = CONSTANT_COMPRESSTHRESHOLD_DEFAULT,
-                bool noZstd = false);
+
+    RCCFileInfo() = default;
+    RCCFileInfo(const QString &name, const QFileInfo &fileInfo, QLocale::Language language,
+                QLocale::Territory territory, uint flags,
+                RCCResourceLibrary::CompressionAlgorithm compressAlgo, int compressLevel,
+                int compressThreshold, bool noZstd, bool isEmpty);
+
     ~RCCFileInfo();
+    RCCFileInfo(const RCCFileInfo &) = delete;
+    RCCFileInfo &operator=(const RCCFileInfo &) = delete;
+    RCCFileInfo(RCCFileInfo &&) = default;
+    RCCFileInfo &operator=(RCCFileInfo &&other) = delete;
 
     QString resourceName() const;
 
@@ -92,41 +95,40 @@ public:
     qint64 writeDataName(RCCResourceLibrary &, qint64 offset);
     void writeDataInfo(RCCResourceLibrary &lib);
 
-    int m_flags;
+    int m_flags = NoFlags;
+    QLocale::Language m_language = QLocale::C;
+    QLocale::Territory m_territory = QLocale::AnyTerritory;
     QString m_name;
-    QLocale::Language m_language;
-    QLocale::Territory m_territory;
     QFileInfo m_fileInfo;
-    RCCFileInfo *m_parent;
+    RCCFileInfo *m_parent = nullptr;
     QMultiHash<QString, RCCFileInfo *> m_children;
-    RCCResourceLibrary::CompressionAlgorithm m_compressAlgo;
-    int m_compressLevel;
-    int m_compressThreshold;
 
-    qint64 m_nameOffset;
-    qint64 m_dataOffset;
-    qint64 m_childOffset;
-    bool m_noZstd;
+    RCCResourceLibrary::CompressionAlgorithm m_compressAlgo = RCCResourceLibrary::CompressionAlgorithm::Best;
+    int m_compressLevel = CONSTANT_COMPRESSLEVEL_DEFAULT;
+    int m_compressThreshold = CONSTANT_COMPRESSTHRESHOLD_DEFAULT;
+    bool m_noZstd = false;
+    bool m_isEmpty = false;
+
+    qint64 m_nameOffset = 0;
+    qint64 m_dataOffset = 0;
+    qint64 m_childOffset = 0;
 };
 
-RCCFileInfo::RCCFileInfo(const QString &name, const QFileInfo &fileInfo,
-    QLocale::Language language, QLocale::Territory territory, uint flags,
-    RCCResourceLibrary::CompressionAlgorithm compressAlgo, int compressLevel, int compressThreshold,
-    bool noZstd)
+RCCFileInfo::RCCFileInfo(const QString &name, const QFileInfo &fileInfo, QLocale::Language language,
+                         QLocale::Territory territory, uint flags,
+                         RCCResourceLibrary::CompressionAlgorithm compressAlgo, int compressLevel,
+                         int compressThreshold, bool noZstd, bool isEmpty)
+    : m_flags(flags),
+      m_language(language),
+      m_territory(territory),
+      m_name(name),
+      m_fileInfo(fileInfo),
+      m_compressAlgo(compressAlgo),
+      m_compressLevel(compressLevel),
+      m_compressThreshold(compressThreshold),
+      m_noZstd(noZstd),
+      m_isEmpty(isEmpty)
 {
-    m_name = name;
-    m_fileInfo = fileInfo;
-    m_language = language;
-    m_territory = territory;
-    m_flags = flags;
-    m_parent = nullptr;
-    m_nameOffset = 0;
-    m_dataOffset = 0;
-    m_childOffset = 0;
-    m_compressAlgo = compressAlgo;
-    m_compressLevel = compressLevel;
-    m_compressThreshold = compressThreshold;
-    m_noZstd = noZstd;
 }
 
 RCCFileInfo::~RCCFileInfo()
@@ -139,7 +141,8 @@ QString RCCFileInfo::resourceName() const
     QString resource = m_name;
     for (RCCFileInfo *p = m_parent; p; p = p->m_parent)
         resource = resource.prepend(p->m_name + u'/');
-    return u':' + resource;
+    resource.prepend(u':');
+    return resource;
 }
 
 void RCCFileInfo::writeDataInfo(RCCResourceLibrary &lib)
@@ -198,7 +201,7 @@ void RCCFileInfo::writeDataInfo(RCCResourceLibrary &lib)
 
     if (lib.formatVersion() >= 2) {
         // last modified time stamp
-        const QDateTime lastModified = m_fileInfo.lastModified();
+        const QDateTime lastModified = m_fileInfo.lastModified(QTimeZone::UTC);
         quint64 lastmod = quint64(lastModified.isValid() ? lastModified.toMSecsSinceEpoch() : 0);
         static const quint64 sourceDate = 1000 * qgetenv("QT_RCC_SOURCE_DATE_OVERRIDE").toULongLong();
         if (sourceDate != 0)
@@ -225,14 +228,18 @@ qint64 RCCFileInfo::writeDataBlob(RCCResourceLibrary &lib, qint64 offset,
 
     //capture the offset
     m_dataOffset = offset;
+    QByteArray data;
 
-    //find the data to be written
-    QFile file(m_fileInfo.absoluteFilePath());
-    if (!file.open(QFile::ReadOnly)) {
-        *errorMessage = msgOpenReadFailed(m_fileInfo.absoluteFilePath(), file.errorString());
-        return 0;
+    if (!m_isEmpty) {
+        //find the data to be written
+        QFile file(m_fileInfo.absoluteFilePath());
+        if (!file.open(QFile::ReadOnly)) {
+            *errorMessage = msgOpenReadFailed(m_fileInfo.absoluteFilePath(), file.errorString());
+            return 0;
+        }
+
+        data = file.readAll();
     }
-    QByteArray data = file.readAll();
 
     // Check if compression is useful for this file
     if (data.size() != 0) {
@@ -420,6 +427,7 @@ RCCResourceLibrary::Strings::Strings() :
    ATTRIBUTE_LANG("lang"_L1),
    ATTRIBUTE_PREFIX("prefix"_L1),
    ATTRIBUTE_ALIAS("alias"_L1),
+   ATTRIBUTE_EMPTY("empty"_L1),
    ATTRIBUTE_THRESHOLD("threshold"_L1),
    ATTRIBUTE_COMPRESS("compress"_L1),
    ATTRIBUTE_COMPRESSALGO(QStringLiteral("compression-algorithm"))
@@ -464,6 +472,17 @@ enum RCCXmlTag {
 };
 Q_DECLARE_TYPEINFO(RCCXmlTag, Q_PRIMITIVE_TYPE);
 
+static bool parseBoolean(QStringView value, QString *errorMsg)
+{
+    if (value.compare("true"_L1, Qt::CaseInsensitive) == 0)
+        return true;
+    if (value.compare("false"_L1, Qt::CaseInsensitive) == 0)
+        return false;
+
+    *errorMsg = QString::fromLatin1("Invalid value for boolean attribute: '%1'").arg(value);
+    return false;
+}
+
 bool RCCResourceLibrary::interpretResourceFile(QIODevice *inputDevice,
     const QString &fname, QString currentPath, bool listMode)
 {
@@ -479,6 +498,7 @@ bool RCCResourceLibrary::interpretResourceFile(QIODevice *inputDevice,
     QLocale::Language language = QLocale::c().language();
     QLocale::Territory territory = QLocale::c().territory();
     QString alias;
+    bool empty = false;
     auto compressAlgo = m_compressionAlgo;
     int compressLevel = m_compressLevel;
     int compressThreshold = m_compressThreshold;
@@ -538,6 +558,11 @@ bool RCCResourceLibrary::interpretResourceFile(QIODevice *inputDevice,
                     compressThreshold = m_compressThreshold;
 
                     QString errorString;
+                    if (attributes.hasAttribute(m_strings.ATTRIBUTE_EMPTY))
+                        empty = parseBoolean(attributes.value(m_strings.ATTRIBUTE_EMPTY), &errorString);
+                    else
+                        empty = false;
+
                     if (attributes.hasAttribute(m_strings.ATTRIBUTE_COMPRESSALGO))
                         compressAlgo = parseCompressionAlgorithm(attributes.value(m_strings.ATTRIBUTE_COMPRESSALGO), &errorString);
                     if (errorString.isEmpty() && attributes.hasAttribute(m_strings.ATTRIBUTE_COMPRESS)) {
@@ -628,7 +653,7 @@ bool RCCResourceLibrary::interpretResourceFile(QIODevice *inputDevice,
                                                     child.isDir() ? RCCFileInfo::Directory
                                                                   : RCCFileInfo::NoFlags,
                                                     compressAlgo, compressLevel, compressThreshold,
-                                                    m_noZstd));
+                                                    m_noZstd, empty));
                         if (!arc)
                             m_failedResources.push_back(child.fileName());
                     }
@@ -643,7 +668,7 @@ bool RCCResourceLibrary::interpretResourceFile(QIODevice *inputDevice,
                                             compressAlgo,
                                             compressLevel,
                                             compressThreshold,
-                                            m_noZstd)
+                                            m_noZstd, empty)
                                 );
                     if (!arc)
                         m_failedResources.push_back(absFileName);
@@ -682,15 +707,15 @@ bool RCCResourceLibrary::interpretResourceFile(QIODevice *inputDevice,
         m_errorDevice->write(msg.toUtf8());
         if (!listMode && m_format == Binary) {
             // create dummy entry, otherwise loading with QResource will crash
-            m_root = new RCCFileInfo(QString(), QFileInfo(),
-                    QLocale::C, QLocale::AnyTerritory, RCCFileInfo::Directory);
+            m_root = new RCCFileInfo{};
+            m_root->m_flags = RCCFileInfo::Directory;
         }
     }
 
     return true;
 }
 
-bool RCCResourceLibrary::addFile(const QString &alias, const RCCFileInfo &file)
+bool RCCResourceLibrary::addFile(const QString &alias, RCCFileInfo file)
 {
     Q_ASSERT(m_errorDevice);
     if (file.m_fileInfo.size() > 0xffffffff) {
@@ -698,8 +723,10 @@ bool RCCResourceLibrary::addFile(const QString &alias, const RCCFileInfo &file)
         m_errorDevice->write(msg.toUtf8());
         return false;
     }
-    if (!m_root)
-        m_root = new RCCFileInfo(QString(), QFileInfo(), QLocale::C, QLocale::AnyTerritory, RCCFileInfo::Directory);
+    if (!m_root) {
+        m_root = new RCCFileInfo{};
+        m_root->m_flags = RCCFileInfo::Directory;
+    }
 
     RCCFileInfo *parent = m_root;
     const QStringList nodes = alias.split(u'/');
@@ -708,7 +735,9 @@ bool RCCResourceLibrary::addFile(const QString &alias, const RCCFileInfo &file)
         if (node.isEmpty())
             continue;
         if (!parent->m_children.contains(node)) {
-            RCCFileInfo *s = new RCCFileInfo(node, QFileInfo(), QLocale::C, QLocale::AnyTerritory, RCCFileInfo::Directory);
+            RCCFileInfo *s = new RCCFileInfo{};
+            s->m_name = node;
+            s->m_flags = RCCFileInfo::Directory;
             s->m_parent = parent;
             parent->m_children.insert(node, s);
             parent = s;
@@ -718,7 +747,7 @@ bool RCCResourceLibrary::addFile(const QString &alias, const RCCFileInfo &file)
     }
 
     const QString filename = nodes.at(nodes.size()-1);
-    RCCFileInfo *s = new RCCFileInfo(file);
+    RCCFileInfo *s = new RCCFileInfo(std::move(file));
     s->m_parent = parent;
     auto cbegin = parent->m_children.constFind(filename);
     auto cend = parent->m_children.constEnd();
diff --git a/src/tools/rcc/rcc.h b/src/tools/rcc/rcc.h
index fe0e0989..60af1c67 100644
--- a/src/tools/rcc/rcc.h
+++ b/src/tools/rcc/rcc.h
@@ -96,13 +96,14 @@ private:
         const QString ATTRIBUTE_LANG;
         const QString ATTRIBUTE_PREFIX;
         const QString ATTRIBUTE_ALIAS;
+        const QString ATTRIBUTE_EMPTY;
         const QString ATTRIBUTE_THRESHOLD;
         const QString ATTRIBUTE_COMPRESS;
         const QString ATTRIBUTE_COMPRESSALGO;
     };
     friend class RCCFileInfo;
     void reset();
-    bool addFile(const QString &alias, const RCCFileInfo &file);
+    bool addFile(const QString &alias, RCCFileInfo file);
     bool interpretResourceFile(QIODevice *inputDevice, const QString &file,
         QString currentPath = QString(), bool listMode = false);
     bool writeHeader();
diff --git a/src/tools/syncqt/CMakeLists.txt b/src/tools/syncqt/CMakeLists.txt
index f3b6d5df..3e1f35c3 100644
--- a/src/tools/syncqt/CMakeLists.txt
+++ b/src/tools/syncqt/CMakeLists.txt
@@ -28,33 +28,45 @@ set(compile_definitions
     QT_NAMESPACE="${QT_NAMESPACE}"
 )
 
-set(config_type "")
-if(NOT QT_INTERNAL_AVOID_OVERRIDING_SYNCQT_CONFIG)
-    set(config_type CONFIG RelWithDebInfo)
-endif()
-
-if(CMAKE_OSX_ARCHITECTURES)
-    set(osx_architectures "-DCMAKE_OSX_ARCHITECTURES:STRING=${CMAKE_OSX_ARCHITECTURES}")
-endif()
-
-if(CMAKE_OSX_SYSROOT)
-    set(osx_sysroot "-DCMAKE_OSX_SYSROOT:STRING=${CMAKE_OSX_SYSROOT}")
-endif()
 qt_get_tool_target_name(target_name syncqt)
-# Note: configure-time tools reserve the original tool name for the imported executable.
-# To re-build syncqt use 'syncqt_build' target.
-qt_internal_add_configure_time_tool(${target_name}
-    DEFINES ${compile_definitions}
-    TOOLS_TARGET Core
-    INSTALL_DIRECTORY "${INSTALL_LIBEXECDIR}"
-    CMAKE_FLAGS
-        -DCMAKE_CXX_STANDARD_REQUIRED:BOOL=TRUE
-        -DCMAKE_CXX_STANDARD:STRING=${CMAKE_CXX_STANDARD}
-        # std::filesystem API is only available in macOS 10.15+
-        -DCMAKE_OSX_DEPLOYMENT_TARGET:STRING=10.15
-        "${osx_architectures}"
-        "${osx_sysroot}"
-    SOURCES
+if(NOT QT_SYNC_HEADERS_AT_CONFIGURE_TIME)
+    qt_internal_add_tool(${target_name}
+        DEFINES ${compile_definitions}
+        EXCEPTIONS
+        TOOLS_TARGET Core
+        CORE_LIBRARY None
+        INSTALL_DIR "${INSTALL_LIBEXECDIR}"
+        SOURCES
         "${CMAKE_CURRENT_SOURCE_DIR}/main.cpp"
-    ${config_type}
-)
+    )
+else()
+    set(config_type "")
+    if(NOT QT_INTERNAL_AVOID_OVERRIDING_SYNCQT_CONFIG)
+        set(config_type CONFIG RelWithDebInfo)
+    endif()
+
+    if(CMAKE_OSX_ARCHITECTURES)
+        set(osx_architectures "-DCMAKE_OSX_ARCHITECTURES:STRING=${CMAKE_OSX_ARCHITECTURES}")
+    endif()
+
+    if(CMAKE_OSX_SYSROOT)
+        set(osx_sysroot "-DCMAKE_OSX_SYSROOT:STRING=${CMAKE_OSX_SYSROOT}")
+    endif()
+    # Note: configure-time tools reserve the original tool name for the imported executable.
+    # To re-build syncqt use 'syncqt_build' target.
+    qt_internal_add_configure_time_tool(${target_name}
+        DEFINES ${compile_definitions}
+        TOOLS_TARGET Core
+        INSTALL_DIRECTORY "${INSTALL_LIBEXECDIR}"
+        CMAKE_FLAGS
+            -DCMAKE_CXX_STANDARD_REQUIRED:BOOL=TRUE
+            -DCMAKE_CXX_STANDARD:STRING=17
+            # std::filesystem API is only available in macOS 10.15+
+            -DCMAKE_OSX_DEPLOYMENT_TARGET:STRING=10.15
+            "${osx_architectures}"
+            "${osx_sysroot}"
+        SOURCES
+            "${CMAKE_CURRENT_SOURCE_DIR}/main.cpp"
+        ${config_type}
+    )
+endif()
diff --git a/src/tools/syncqt/main.cpp b/src/tools/syncqt/main.cpp
index cf7bd6c1..442d07a0 100644
--- a/src/tools/syncqt/main.cpp
+++ b/src/tools/syncqt/main.cpp
@@ -199,6 +199,8 @@ public:
 
     const std::string &qpaIncludeDir() const { return m_qpaIncludeDir; }
 
+    const std::string &rhiIncludeDir() const { return m_rhiIncludeDir; }
+
     const std::string &stagingDir() const { return m_stagingDir; }
 
     const std::string &versionScriptFile() const { return m_versionScriptFile; }
@@ -207,6 +209,8 @@ public:
 
     const std::regex &qpaHeadersRegex() const { return m_qpaHeadersRegex; }
 
+    const std::regex &rhiHeadersRegex() const { return m_rhiHeadersRegex; }
+
     const std::regex &privateHeadersRegex() const { return m_privateHeadersRegex; }
 
     const std::regex &publicNamespaceRegex() const { return m_publicNamespaceRegex; }
@@ -238,9 +242,9 @@ public:
     void printHelp() const
     {
         std::cout << "Usage: syncqt -sourceDir <dir> -binaryDir <dir> -module <module name>"
-                     " -includeDir <dir> -privateIncludeDir <dir> -qpaIncludeDir <dir>"
+                     " -includeDir <dir> -privateIncludeDir <dir> -qpaIncludeDir <dir> -rhiIncludeDir <dir>"
                      " -stagingDir <dir> <-headers <header list>|-all> [-debug]"
-                     " [-versionScript <path>] [-qpaHeadersFilter <regex>]"
+                     " [-versionScript <path>] [-qpaHeadersFilter <regex>] [-rhiHeadersFilter <regex>]"
                      " [-framework [-frameworkIncludeDir <dir>]]"
                      " [-knownModules <module1> <module2>... <moduleN>]"
                      " [-nonQt] [-internal] [-copy]\n"
@@ -262,6 +266,8 @@ public:
                      "                                  generated private header files.\n"
                      "  -qpaIncludeDir                  Module include directory for the \n"
                      "                                  generated QPA header files.\n"
+                     "  -rhiIncludeDir                  Module include directory for the \n"
+                     "                                  generated RHI header files.\n"
                      "  -stagingDir                     Temporary staging directory to collect\n"
                      "                                  artifacts that need to be installed.\n"
                      "  -knownModules                   list of known modules. syncqt uses the\n"
@@ -275,6 +281,8 @@ public:
                      "                                  from the list of 'headers'.\n"
                      "  -qpaHeadersFilter               Regex that filters qpa header files from.\n"
                      "                                  the list of 'headers'.\n"
+                     "  -rhiHeadersFilter               Regex that filters rhi header files from.\n"
+                     "                                  the list of 'headers'.\n"
                      "  -publicNamespaceFilter          Symbols that are in the specified\n"
                      "                                  namespace.\n"
                      "                                  are treated as public symbols.\n"
@@ -312,6 +320,7 @@ private:
     [[nodiscard]] bool parseArguments(int argc, char *argv[])
     {
         std::string qpaHeadersFilter;
+        std::string rhiHeadersFilter;
         std::string privateHeadersFilter;
         std::string publicNamespaceFilter;
         static std::unordered_map<std::string, CommandLineOption<std::string>> stringArgumentMap = {
@@ -320,9 +329,11 @@ private:
             { "-binaryDir", { &m_binaryDir } },
             { "-privateHeadersFilter", { &privateHeadersFilter, true } },
             { "-qpaHeadersFilter", { &qpaHeadersFilter, true } },
+            { "-rhiHeadersFilter", { &rhiHeadersFilter, true } },
             { "-includeDir", { &m_includeDir } },
             { "-privateIncludeDir", { &m_privateIncludeDir } },
             { "-qpaIncludeDir", { &m_qpaIncludeDir } },
+            { "-rhiIncludeDir", { &m_rhiIncludeDir } },
             { "-stagingDir", { &m_stagingDir, true } },
             { "-versionScript", { &m_versionScriptFile, true } },
             { "-frameworkIncludeDir", { &m_frameworkIncludeDir, true } },
@@ -437,6 +448,9 @@ private:
         if (!qpaHeadersFilter.empty())
             m_qpaHeadersRegex = std::regex(qpaHeadersFilter);
 
+        if (!rhiHeadersFilter.empty())
+            m_rhiHeadersRegex = std::regex(rhiHeadersFilter);
+
         if (!privateHeadersFilter.empty())
             m_privateHeadersRegex = std::regex(privateHeadersFilter);
 
@@ -469,9 +483,10 @@ private:
     // Convert all paths from command line to a generic one.
     void normilizePaths()
     {
-        static std::array<std::string *, 8> paths = {
+        static std::array<std::string *, 9> paths = {
             &m_sourceDir,     &m_binaryDir,  &m_includeDir,        &m_privateIncludeDir,
-            &m_qpaIncludeDir, &m_stagingDir, &m_versionScriptFile, &m_frameworkIncludeDir
+            &m_qpaIncludeDir, &m_rhiIncludeDir, &m_stagingDir,
+            &m_versionScriptFile, &m_frameworkIncludeDir
         };
         for (auto path : paths) {
             if (!path->empty())
@@ -485,6 +500,7 @@ private:
     std::string m_includeDir;
     std::string m_privateIncludeDir;
     std::string m_qpaIncludeDir;
+    std::string m_rhiIncludeDir;
     std::string m_stagingDir;
     std::string m_versionScriptFile;
     std::string m_frameworkIncludeDir;
@@ -502,6 +518,7 @@ private:
     bool m_showOnly = false;
     bool m_warningsAreErrors = false;
     std::regex m_qpaHeadersRegex;
+    std::regex m_rhiHeadersRegex;
     std::regex m_privateHeadersRegex;
     std::regex m_publicNamespaceRegex;
 
@@ -573,7 +590,7 @@ class SyncScanner
     size_t m_currentFileLineNumber = 0;
     bool m_currentFileInSourceDir = false;
 
-    enum FileType { PublicHeader = 0, PrivateHeader = 1, QpaHeader = 2, ExportHeader = 4 };
+    enum FileType { PublicHeader = 0, PrivateHeader = 1, QpaHeader = 2, ExportHeader = 4, RhiHeader = 8 };
     unsigned int m_currentFileType = PublicHeader;
 
     int m_criticalChecks = CriticalChecks;
@@ -793,6 +810,9 @@ public:
         if (isHeaderQpa(m_currentFilename))
             m_currentFileType = QpaHeader | PrivateHeader;
 
+        if (isHeaderRhi(m_currentFilename))
+            m_currentFileType = RhiHeader | PrivateHeader;
+
         if (std::regex_match(m_currentFilename, ExportsHeaderRegex))
             m_currentFileType |= ExportHeader;
     }
@@ -830,12 +850,14 @@ public:
 
         bool isPrivate = m_currentFileType & PrivateHeader;
         bool isQpa = m_currentFileType & QpaHeader;
+        bool isRhi = m_currentFileType & RhiHeader;
         bool isExport = m_currentFileType & ExportHeader;
         scannerDebug()
             << "processHeader:start: " << headerFile
             << " m_currentFilename: " << m_currentFilename
             << " isPrivate: " << isPrivate
             << " isQpa: " << isQpa
+            << " isRhi: " << isRhi
             << std::endl;
 
         // Chose the directory where to generate the header aliases or to copy header file if
@@ -843,6 +865,8 @@ public:
         std::string outputDir = m_commandLineArgs->includeDir();
         if (isQpa)
             outputDir = m_commandLineArgs->qpaIncludeDir();
+        else if (isRhi)
+            outputDir = m_commandLineArgs->rhiIncludeDir();
         else if (isPrivate)
             outputDir = m_commandLineArgs->privateIncludeDir();
 
@@ -901,7 +925,7 @@ public:
             unsigned int skipChecks = m_commandLineArgs->scanAllMode() ? AllChecks : NoChecks;
 
             // Collect checks that should skipped for the header file.
-            if (m_commandLineArgs->isNonQtModule() || is3rdParty || isQpa
+            if (m_commandLineArgs->isNonQtModule() || is3rdParty || isQpa || isRhi
                 || !m_currentFileInSourceDir || isGenerated) {
                 skipChecks = AllChecks;
             } else {
@@ -922,7 +946,7 @@ public:
 
             ParsingResult parsingResult;
             parsingResult.masterInclude = m_currentFileInSourceDir && !isExport && !is3rdParty
-                    && !isQpa && !isPrivate && !isGenerated;
+                    && !isQpa && !isRhi && !isPrivate && !isGenerated;
             if (!parseHeader(headerFile, parsingResult, skipChecks)) {
                 scannerDebug() << "parseHeader failed: " << headerFile << std::endl;
                 return false;
@@ -939,7 +963,7 @@ public:
             // Add the '#if QT_CONFIG(<feature>)' check for header files that supposed to be
             // included into the module master header only if corresponding feature is enabled.
             bool willBeInModuleMasterHeader = false;
-            if (!isQpa && !isPrivate) {
+            if (!isQpa && !isRhi && !isPrivate) {
                 if (m_currentFilename.find('_') == std::string::npos
                     && parsingResult.masterInclude) {
                     m_masterHeaderContents[m_currentFilename] = parsingResult.requireConfig;
@@ -1232,7 +1256,7 @@ public:
             ++linesProcessed;
 
             bool skipSymbols =
-                    (m_currentFileType & PrivateHeader) || (m_currentFileType & QpaHeader);
+                    (m_currentFileType & PrivateHeader) || (m_currentFileType & QpaHeader) || (m_currentFileType & RhiHeader);
 
             // Parse pragmas
             if (std::regex_match(buffer, MacroRegex)) {
@@ -1414,6 +1438,11 @@ public:
         return std::regex_match(headerFileName, m_commandLineArgs->qpaHeadersRegex());
     }
 
+    [[nodiscard]] bool isHeaderRhi(const std::string &headerFileName)
+    {
+        return std::regex_match(headerFileName, m_commandLineArgs->rhiHeadersRegex());
+    }
+
     [[nodiscard]] bool isHeaderPrivate(const std::string &headerFile)
     {
         return std::regex_match(headerFile, m_commandLineArgs->privateHeadersRegex());
@@ -1514,7 +1543,7 @@ public:
                 versionDisclaimer = " and will be removed in Qt " + version;
                 int minor = 0;
                 int major = 0;
-                if (!utils::parseVersion(version, minor, major)) {
+                if (!utils::parseVersion(version, major, minor)) {
                     std::cerr << ErrorMessagePreamble
                               << "Invalid version format specified for the deprecated header file "
                               << headerPath << ": '" << version
diff --git a/src/tools/uic/cpp/cppwritedeclaration.cpp b/src/tools/uic/cpp/cppwritedeclaration.cpp
index 910c4e2e..8261963c 100644
--- a/src/tools/uic/cpp/cppwritedeclaration.cpp
+++ b/src/tools/uic/cpp/cppwritedeclaration.cpp
@@ -65,8 +65,8 @@ void WriteDeclaration::acceptUI(DomUI *node)
     // is a User using Qt-in-namespace having his own classes not in a namespace.
     // In this case the generated Ui helper classes will also end up in
     // the Qt namespace (which is harmless, but not "pretty")
-    const bool needsMacro = namespaceList.size() == 0
-        || namespaceList[0] == "qdesigner_internal"_L1;
+    const bool needsMacro = m_option.qtNamespace &&
+            (namespaceList.size() == 0 || namespaceList[0] == "qdesigner_internal"_L1);
 
     if (needsMacro)
         m_output << "QT_BEGIN_NAMESPACE\n\n";
diff --git a/src/tools/uic/cpp/cppwriteinitialization.cpp b/src/tools/uic/cpp/cppwriteinitialization.cpp
index 30cb9a4d..ec30ce29 100644
--- a/src/tools/uic/cpp/cppwriteinitialization.cpp
+++ b/src/tools/uic/cpp/cppwriteinitialization.cpp
@@ -180,6 +180,15 @@ FontHandle::FontHandle(const DomFont *domFont) :
 {
 }
 
+static QString fontWeight(const DomFont *domFont)
+{
+   if (domFont->hasElementFontWeight())
+       return domFont->elementFontWeight();
+   if (domFont->hasElementBold())
+      return domFont->elementBold() ? u"Bold"_s : u"Normal"_s;
+   return {};
+}
+
 int FontHandle::compare(const FontHandle &rhs) const
 {
     const QString family    = m_domFont->hasElementFamily()     ?     m_domFont->elementFamily() : QString();
@@ -194,10 +203,10 @@ int FontHandle::compare(const FontHandle &rhs) const
     if (const int crc = compareInt(pointSize, rhsPointSize))
         return crc;
 
-    const int bold    = m_domFont->hasElementBold()     ? (m_domFont->elementBold()     ? 1 : 0) : -1;
-    const int rhsBold = rhs.m_domFont->hasElementBold() ? (rhs.m_domFont->elementBold() ? 1 : 0) : -1;
-    if (const int crc = compareInt(bold, rhsBold))
-        return crc;
+    const QString fontWeight  = CPP::fontWeight(m_domFont);
+    const QString rhsFontWeight = CPP::fontWeight(rhs.m_domFont);
+    if (const int wrc = fontWeight.compare(rhsFontWeight))
+        return wrc;
 
     const int italic    = m_domFont->hasElementItalic()     ? (m_domFont->elementItalic()     ? 1 : 0) : -1;
     const int rhsItalic = rhs.m_domFont->hasElementItalic() ? (rhs.m_domFont->elementItalic() ? 1 : 0) : -1;
@@ -209,11 +218,6 @@ int FontHandle::compare(const FontHandle &rhs) const
     if (const int crc = compareInt(underline, rhsUnderline))
         return crc;
 
-    const int weight    = m_domFont->hasElementWeight()     ?     m_domFont->elementWeight() : -1;
-    const int rhsWeight = rhs.m_domFont->hasElementWeight() ? rhs.m_domFont->elementWeight() : -1;
-    if (const int crc = compareInt(weight, rhsWeight))
-        return crc;
-
     const int strikeOut    = m_domFont->hasElementStrikeOut()     ? (m_domFont->elementStrikeOut()     ? 1 : 0) : -1;
     const int rhsStrikeOut = rhs.m_domFont->hasElementStrikeOut() ? (rhs.m_domFont->elementStrikeOut() ? 1 : 0) : -1;
     if (const int crc = compareInt(strikeOut, rhsStrikeOut))
@@ -1634,10 +1638,14 @@ QString WriteInitialization::writeFontProperties(const DomFont *f)
              << ")" << language::eol;
     }
 
-    if (f->hasElementBold()) {
+    if (f->hasElementFontWeight()) {
+         m_output << m_indent << fontName << ".setWeight(QFont"
+             << language::qualifier << f->elementFontWeight() << ')' << language::eol;
+    } else if (f->hasElementBold()) {
         m_output << m_indent << fontName << ".setBold("
             << language::boolValue(f->elementBold()) << ')' << language::eol;
     }
+
     if (f->hasElementItalic()) {
         m_output << m_indent << fontName << ".setItalic("
             << language::boolValue(f->elementItalic()) << ')' << language::eol;
diff --git a/src/tools/uic/main.cpp b/src/tools/uic/main.cpp
index 8728212f..d46b7884 100644
--- a/src/tools/uic/main.cpp
+++ b/src/tools/uic/main.cpp
@@ -93,6 +93,11 @@ int runUic(int argc, char *argv[])
     postfixOption.setValueName(u"postfix"_s);
     parser.addOption(postfixOption);
 
+    QCommandLineOption noQtNamespaceOption(u"no-qt-namespace"_s);
+    noQtNamespaceOption.setDescription(
+        u"Disable wrapping the definition of the generated class in QT_{BEGIN,END}_NAMESPACE."_s);
+    parser.addOption(noQtNamespaceOption);
+
     QCommandLineOption translateOption(QStringList{u"tr"_s, u"translate"_s});
     translateOption.setDescription(u"Use <function> for i18n."_s);
     translateOption.setValueName(u"function"_s);
@@ -149,6 +154,7 @@ int runUic(int argc, char *argv[])
     driver.option().autoConnection = !parser.isSet(noAutoConnectionOption);
     driver.option().headerProtection = !parser.isSet(noProtOption);
     driver.option().implicitIncludes = !parser.isSet(noImplicitIncludesOption);
+    driver.option().qtNamespace = !parser.isSet(noQtNamespaceOption);
     driver.option().idBased = parser.isSet(idBasedOption);
     driver.option().postfix = parser.value(postfixOption);
     driver.option().translateFunction = parser.value(translateOption);
diff --git a/src/tools/uic/option.h b/src/tools/uic/option.h
index 78b3ff14..cfdd90fd 100644
--- a/src/tools/uic/option.h
+++ b/src/tools/uic/option.h
@@ -30,6 +30,7 @@ struct Option
     unsigned int forceStringConnectionSyntax: 1;
     unsigned int useStarImports: 1;
     unsigned int rcPrefix: 1; // Python: Generate "rc_file" instead of "file_rc" import
+    unsigned int qtNamespace: 1;
 
     QString inputFile;
     QString outputFile;
@@ -57,6 +58,7 @@ struct Option
           forceStringConnectionSyntax(0),
           useStarImports(0),
           rcPrefix(0),
+          qtNamespace(1),
           prefix(QLatin1StringView("Ui_"))
     { indent.fill(u' ', 4); }
 
diff --git a/src/tools/uic/ui4.cpp b/src/tools/uic/ui4.cpp
index 5c9240a5..d65fc4a8 100644
--- a/src/tools/uic/ui4.cpp
+++ b/src/tools/uic/ui4.cpp
@@ -3125,6 +3125,10 @@ void DomFont::read(QXmlStreamReader &reader)
                 setElementHintingPreference(reader.readElementText());
                 continue;
             }
+            if (!tag.compare(u"fontweight"_s, Qt::CaseInsensitive)) {
+                setElementFontWeight(reader.readElementText());
+                continue;
+            }
             reader.raiseError("Unexpected element "_L1 + tag);
         }
             break;
@@ -3173,6 +3177,9 @@ void DomFont::write(QXmlStreamWriter &writer, const QString &tagName) const
     if (m_children & HintingPreference)
         writer.writeTextElement(u"hintingpreference"_s, m_hintingPreference);
 
+    if (m_children & FontWeight)
+        writer.writeTextElement(u"fontweight"_s, m_fontWeight);
+
     writer.writeEndElement();
 }
 
@@ -3242,6 +3249,12 @@ void DomFont::setElementHintingPreference(const QString &a)
     m_hintingPreference = a;
 }
 
+void DomFont::setElementFontWeight(const QString &a)
+{
+    m_children |= FontWeight;
+    m_fontWeight = a;
+}
+
 void DomFont::clearElementFamily()
 {
     m_children &= ~Family;
@@ -3297,6 +3310,11 @@ void DomFont::clearElementHintingPreference()
     m_children &= ~HintingPreference;
 }
 
+void DomFont::clearElementFontWeight()
+{
+    m_children &= ~FontWeight;
+}
+
 DomPoint::~DomPoint() = default;
 
 void DomPoint::read(QXmlStreamReader &reader)
diff --git a/src/tools/uic/ui4.h b/src/tools/uic/ui4.h
index 7244d1d5..333f7f4e 100644
--- a/src/tools/uic/ui4.h
+++ b/src/tools/uic/ui4.h
@@ -1650,6 +1650,11 @@ public:
     inline bool hasElementHintingPreference() const { return m_children & HintingPreference; }
     void clearElementHintingPreference();
 
+    inline QString elementFontWeight() const { return m_fontWeight; }
+    void setElementFontWeight(const QString &a);
+    inline bool hasElementFontWeight() const { return m_children & FontWeight; }
+    void clearElementFontWeight();
+
 private:
 
     // child element data
@@ -1665,6 +1670,7 @@ private:
     QString m_styleStrategy;
     bool m_kerning = false;
     QString m_hintingPreference;
+    QString m_fontWeight;
 
     enum Child {
         Family = 1,
@@ -1677,7 +1683,8 @@ private:
         Antialiasing = 128,
         StyleStrategy = 256,
         Kerning = 512,
-        HintingPreference = 1024
+        HintingPreference = 1024,
+        FontWeight = 2048
     };
 };
 
diff --git a/src/tools/windeployqt/CMakeLists.txt b/src/tools/windeployqt/CMakeLists.txt
index 715c0088..d7532019 100644
--- a/src/tools/windeployqt/CMakeLists.txt
+++ b/src/tools/windeployqt/CMakeLists.txt
@@ -12,7 +12,6 @@ qt_internal_add_tool(${target_name}
     INSTALL_VERSIONED_LINK
     TARGET_DESCRIPTION "Qt Windows Deployment Tool"
     SOURCES
-        elfreader.cpp elfreader.h
         qmlutils.cpp qmlutils.h
         qtmoduleinfo.cpp qtmoduleinfo.h
         utils.cpp utils.h
diff --git a/src/tools/windeployqt/elfreader.cpp b/src/tools/windeployqt/elfreader.cpp
deleted file mode 100644
index 9ef3b6bf..00000000
--- a/src/tools/windeployqt/elfreader.cpp
+++ /dev/null
@@ -1,417 +0,0 @@
-// Copyright (C) 2016 The Qt Company Ltd.
-// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only WITH Qt-GPL-exception-1.0
-
-#include "elfreader.h"
-
-#include <QDir>
-
-QT_BEGIN_NAMESPACE
-
-using namespace Qt::StringLiterals;
-
-/* This is a copy of the ELF reader contained in Qt Creator (src/libs/utils),
- * extended by the dependencies() function to read out the dependencies of a dynamic executable. */
-
-quint16 getHalfWord(const unsigned char *&s, const ElfData &context)
-{
-    quint16 res;
-    if (context.endian == Elf_ELFDATA2MSB)
-        res = qFromBigEndian<quint16>(s);
-    else
-        res = qFromLittleEndian<quint16>(s);
-    s += 2;
-    return res;
-}
-
-quint32 getWord(const unsigned char *&s, const ElfData &context)
-{
-    quint32 res;
-    if (context.endian == Elf_ELFDATA2MSB)
-        res = qFromBigEndian<quint32>(s);
-    else
-        res = qFromLittleEndian<quint32>(s);
-    s += 4;
-    return res;
-}
-
-quint64 getAddress(const unsigned char *&s, const ElfData &context)
-{
-    quint64 res;
-    if (context.elfclass == Elf_ELFCLASS32) {
-        if (context.endian == Elf_ELFDATA2MSB)
-            res = qFromBigEndian<quint32>(s);
-        else
-            res = qFromLittleEndian<quint32>(s);
-        s += 4;
-    } else {
-        if (context.endian == Elf_ELFDATA2MSB)
-            res = qFromBigEndian<quint64>(s);
-        else
-            res = qFromLittleEndian<quint64>(s);
-        s += 8;
-    }
-    return res;
-}
-
-quint64 getOffset(const unsigned char *&s, const ElfData &context)
-{
-    return getAddress(s, context);
-}
-
-static void parseSectionHeader(const uchar *s, ElfSectionHeader *sh, const ElfData &context)
-{
-    sh->index = getWord(s, context);
-    sh->type = getWord(s, context);
-    sh->flags = quint32(getOffset(s, context));
-    sh->addr = getAddress(s, context);
-    sh->offset = getOffset(s, context);
-    sh->size = getOffset(s, context);
-}
-
-static void parseProgramHeader(const uchar *s, ElfProgramHeader *sh, const ElfData &context)
-{
-    sh->type = getWord(s, context);
-    sh->offset = getOffset(s, context);
-    /* p_vaddr = */ getAddress(s, context);
-    /* p_paddr = */ getAddress(s, context);
-    sh->filesz = getWord(s, context);
-    sh->memsz = getWord(s, context);
-}
-
-class ElfMapper
-{
-public:
-    ElfMapper(const ElfReader *reader) : file(reader->m_binary) {}
-
-    bool map()
-    {
-        if (!file.open(QIODevice::ReadOnly))
-            return false;
-
-        fdlen = quint64(file.size());
-        ustart = file.map(0, qint64(fdlen));
-        if (ustart == 0) {
-            // Try reading the data into memory instead.
-            raw = file.readAll();
-            start = raw.constData();
-            fdlen = quint64(raw.size());
-        }
-        return true;
-    }
-
-public:
-    QFile file;
-    QByteArray raw;
-    union { const char *start; const uchar *ustart; };
-    quint64 fdlen;
-};
-
-ElfReader::ElfReader(const QString &binary)
-    : m_binary(binary)
-{
-}
-
-ElfData ElfReader::readHeaders()
-{
-    readIt();
-    return m_elfData;
-}
-
-static inline QString msgInvalidElfObject(const QString &binary, const QString &why)
-{
-    return QStringLiteral("'%1' is an invalid ELF object (%2)")
-           .arg(QDir::toNativeSeparators(binary), why);
-}
-
-ElfReader::Result ElfReader::readIt()
-{
-    if (!m_elfData.sectionHeaders.isEmpty())
-        return Ok;
-    if (!m_elfData.programHeaders.isEmpty())
-        return Ok;
-
-    ElfMapper mapper(this);
-    if (!mapper.map())
-        return Corrupt;
-
-    const quint64 fdlen = mapper.fdlen;
-
-    if (fdlen < 64) {
-        m_errorString = QStringLiteral("'%1' is not an ELF object (file too small)").arg(QDir::toNativeSeparators(m_binary));
-        return NotElf;
-    }
-
-    if (strncmp(mapper.start, "\177ELF", 4) != 0) {
-        m_errorString = QStringLiteral("'%1' is not an ELF object").arg(QDir::toNativeSeparators(m_binary));
-        return NotElf;
-    }
-
-    // 32 or 64 bit
-    m_elfData.elfclass = ElfClass(mapper.start[4]);
-    const bool is64Bit = m_elfData.elfclass == Elf_ELFCLASS64;
-    if (m_elfData.elfclass != Elf_ELFCLASS32 && m_elfData.elfclass != Elf_ELFCLASS64) {
-        m_errorString = msgInvalidElfObject(m_binary, QStringLiteral("odd cpu architecture"));
-        return Corrupt;
-    }
-
-    // int bits = (data[4] << 5);
-    // If you remove this check to read ELF objects of a different arch,
-    // please make sure you modify the typedefs
-    // to match the _plugin_ architecture.
-    // if ((sizeof(void*) == 4 && bits != 32)
-    //     || (sizeof(void*) == 8 && bits != 64)) {
-    //     if (errorString)
-    //         *errorString = QLibrary::QStringLiteral("'%1' is an invalid ELF object (%2)")
-    //         .arg(m_binary).arg("wrong cpu architecture"_L1);
-    //     return Corrupt;
-    // }
-
-    // Read Endianhness.
-    m_elfData.endian = ElfEndian(mapper.ustart[5]);
-    if (m_elfData.endian != Elf_ELFDATA2LSB && m_elfData.endian != Elf_ELFDATA2MSB) {
-        m_errorString = msgInvalidElfObject(m_binary, QStringLiteral("odd endianness"));
-        return Corrupt;
-    }
-
-    const uchar *data = mapper.ustart + 16; // e_ident
-    m_elfData.elftype    = ElfType(getHalfWord(data, m_elfData));
-    m_elfData.elfmachine = ElfMachine(getHalfWord(data, m_elfData));
-    /* e_version = */   getWord(data, m_elfData);
-    m_elfData.entryPoint = getAddress(data, m_elfData);
-
-    quint64 e_phoff   = getOffset(data, m_elfData);
-    quint64 e_shoff   = getOffset(data, m_elfData);
-    /* e_flags = */     getWord(data, m_elfData);
-
-    quint32 e_shsize  = getHalfWord(data, m_elfData);
-
-    if (e_shsize > fdlen) {
-        m_errorString = msgInvalidElfObject(m_binary, QStringLiteral("unexpected e_shsize"));
-        return Corrupt;
-    }
-
-    quint32 e_phentsize = getHalfWord(data, m_elfData);
-    if (e_phentsize != (is64Bit ? 56 : 32)) {
-        m_errorString = msgInvalidElfObject(m_binary, QStringLiteral("invalid structure"));
-        return ElfReader::Corrupt;
-    }
-    quint32 e_phnum     = getHalfWord(data, m_elfData);
-
-    quint32 e_shentsize = getHalfWord(data, m_elfData);
-
-    if (e_shentsize % 4) {
-        m_errorString = msgInvalidElfObject(m_binary, QStringLiteral("unexpected e_shentsize"));
-        return Corrupt;
-    }
-
-    quint32 e_shnum     = getHalfWord(data, m_elfData);
-    quint32 e_shtrndx   = getHalfWord(data, m_elfData);
-    if (data != mapper.ustart + (is64Bit ? 64 : 52)) {
-        m_errorString = msgInvalidElfObject(m_binary, QStringLiteral("unexpected e_phentsize"));
-        return ElfReader::Corrupt;
-    }
-
-    if (quint64(e_shnum) * e_shentsize > fdlen) {
-        const QString reason = QStringLiteral("announced %1 sections, each %2 bytes, exceed file size").arg(e_shnum).arg(e_shentsize);
-        m_errorString = msgInvalidElfObject(m_binary, reason);
-        return Corrupt;
-    }
-
-    quint64 soff = e_shoff + e_shentsize * e_shtrndx;
-
-//    if ((soff + e_shentsize) > fdlen || soff % 4 || soff == 0) {
-//        m_errorString = QLibrary::QStringLiteral("'%1' is an invalid ELF object (%2)")
-//           .arg(m_binary)
-//           .arg("shstrtab section header seems to be at %1"_L1)
-//           .arg(QString::number(soff, 16));
-//        return Corrupt;
-//    }
-
-    if (e_shoff) {
-        ElfSectionHeader strtab;
-        parseSectionHeader(mapper.ustart + soff, &strtab, m_elfData);
-        const quint64 stringTableFileOffset = strtab.offset;
-        if (quint32(stringTableFileOffset + e_shentsize) >= fdlen
-                || stringTableFileOffset == 0) {
-            const QString reason = QStringLiteral("string table seems to be at 0x%1").arg(soff, 0, 16);
-            m_errorString = msgInvalidElfObject(m_binary, reason);
-            return Corrupt;
-        }
-
-        for (quint32 i = 0; i < e_shnum; ++i) {
-            const uchar *s = mapper.ustart + e_shoff + i * e_shentsize;
-            ElfSectionHeader sh;
-            parseSectionHeader(s, &sh, m_elfData);
-
-            if (stringTableFileOffset + sh.index > fdlen) {
-                const QString reason = QStringLiteral("section name %1 of %2 behind end of file")
-                                       .arg(i).arg(e_shnum);
-                m_errorString = msgInvalidElfObject(m_binary, reason);
-                return Corrupt;
-            }
-
-            sh.name = mapper.start + stringTableFileOffset + sh.index;
-            if (sh.name == ".gdb_index") {
-                m_elfData.symbolsType = FastSymbols;
-            } else if (sh.name == ".debug_info") {
-                m_elfData.symbolsType = PlainSymbols;
-            } else if (sh.name == ".gnu_debuglink") {
-                m_elfData.debugLink = QByteArray(mapper.start + sh.offset);
-                m_elfData.symbolsType = LinkedSymbols;
-            } else if (sh.name == ".note.gnu.build-id") {
-                m_elfData.symbolsType = BuildIdSymbols;
-                if (sh.size > 16)
-                    m_elfData.buildId = QByteArray(mapper.start + sh.offset + 16,
-                                                   int(sh.size) - 16).toHex();
-            }
-            m_elfData.sectionHeaders.append(sh);
-        }
-    }
-
-    if (e_phoff) {
-        for (quint32 i = 0; i < e_phnum; ++i) {
-            const uchar *s = mapper.ustart + e_phoff + i * e_phentsize;
-            ElfProgramHeader ph;
-            parseProgramHeader(s, &ph, m_elfData);
-            m_elfData.programHeaders.append(ph);
-        }
-    }
-    return Ok;
-}
-
-QByteArray ElfReader::readSection(const QByteArray &name)
-{
-    readIt();
-    int i = m_elfData.indexOf(name);
-    if (i == -1)
-        return QByteArray();
-
-    ElfMapper mapper(this);
-    if (!mapper.map())
-        return QByteArray();
-
-    const ElfSectionHeader &section = m_elfData.sectionHeaders.at(i);
-    return QByteArray(mapper.start + section.offset, int(section.size));
-}
-
-static QByteArray cutout(const char *s)
-{
-    QByteArray res(s, 80);
-    const int pos = res.indexOf('\0');
-    if (pos != -1)
-        res.resize(pos - 1);
-    return res;
-}
-
-QByteArray ElfReader::readCoreName(bool *isCore)
-{
-    *isCore = false;
-
-    readIt();
-
-    ElfMapper mapper(this);
-    if (!mapper.map())
-        return QByteArray();
-
-    if (m_elfData.elftype != Elf_ET_CORE)
-        return QByteArray();
-
-    *isCore = true;
-
-    for (int i = 0, n = m_elfData.sectionHeaders.size(); i != n; ++i)
-        if (m_elfData.sectionHeaders.at(i).type == Elf_SHT_NOTE) {
-            const ElfSectionHeader &header = m_elfData.sectionHeaders.at(i);
-            return cutout(mapper.start + header.offset + 0x40);
-        }
-
-    for (int i = 0, n = m_elfData.programHeaders.size(); i != n; ++i)
-        if (m_elfData.programHeaders.at(i).type == Elf_PT_NOTE) {
-            const ElfProgramHeader &header = m_elfData.programHeaders.at(i);
-            return cutout(mapper.start + header.offset + 0xec);
-        }
-
-    return QByteArray();
-}
-
-int ElfData::indexOf(const QByteArray &name) const
-{
-    for (int i = 0, n = sectionHeaders.size(); i != n; ++i)
-        if (sectionHeaders.at(i).name == name)
-            return i;
-    return -1;
-}
-
-/* Helpers for reading out the .dynamic section containing the dependencies.
- * The ".dynamic" section is an array of
- * typedef struct {
- *      Elf32_Sword d_tag;
- *      union {
- *          Elf32_Word  d_val;
- *          dElf32_Addr d_ptr;
- *     } d_un;
- *  } Elf32_Dyn
- * with entries where a tag DT_NEEDED indicates that m_val is an offset into
- * the string table ".dynstr". The documentation states that entries with the
- * tag DT_STRTAB contain an offset for the string table to be used, but that
- * has been found not to contain valid entries. */
-
-enum DynamicSectionTags {
-    DT_NULL = 0,
-    DT_NEEDED = 1,
-    DT_STRTAB = 5,
-    DT_SONAME = 14,
-    DT_RPATH = 15
-};
-
-QList<QByteArray> ElfReader::dependencies()
-{
-    QList<QByteArray> result;
-
-    ElfMapper mapper(this);
-    if (!mapper.map()) {
-        m_errorString = QStringLiteral("Mapper failure");
-        return result;
-    }
-    quint64 dynStrOffset = 0;
-    quint64 dynamicOffset = 0;
-    quint64 dynamicSize = 0;
-
-    const QList<ElfSectionHeader> &headers = readHeaders().sectionHeaders;
-    for (const ElfSectionHeader &eh : headers) {
-        if (eh.name  == QByteArrayLiteral(".dynstr")) {
-            dynStrOffset = eh.offset;
-        } else if (eh.name  == QByteArrayLiteral(".dynamic")) {
-            dynamicOffset = eh.offset;
-            dynamicSize = eh.size;
-        }
-        if (dynStrOffset && dynamicOffset)
-            break;
-    }
-
-    if (!dynStrOffset || !dynamicOffset) {
-        m_errorString = QStringLiteral("Not a dynamically linked executable.");
-        return result;
-    }
-
-    const unsigned char *dynamicData = mapper.ustart + dynamicOffset;
-    const unsigned char *dynamicDataEnd = dynamicData + dynamicSize;
-    while (dynamicData < dynamicDataEnd) {
-        const quint32 tag = getWord(dynamicData, m_elfData);
-        if (tag == DT_NULL)
-            break;
-        if (m_elfData.elfclass == Elf_ELFCLASS64)
-            dynamicData += sizeof(quint32); // padding to d_val/d_ptr.
-        if (tag == DT_NEEDED) {
-            const quint32 offset = getWord(dynamicData, m_elfData);
-            if (m_elfData.elfclass == Elf_ELFCLASS64)
-                dynamicData += sizeof(quint32); // past d_ptr.
-            const char *name = mapper.start + dynStrOffset + offset;
-            result.push_back(name);
-        } else {
-             dynamicData += m_elfData.elfclass == Elf_ELFCLASS64 ? 8 : 4;
-        }
-    }
-    return result;
-}
-
-QT_END_NAMESPACE
diff --git a/src/tools/windeployqt/elfreader.h b/src/tools/windeployqt/elfreader.h
deleted file mode 100644
index bea53c2e..00000000
--- a/src/tools/windeployqt/elfreader.h
+++ /dev/null
@@ -1,151 +0,0 @@
-// Copyright (C) 2016 The Qt Company Ltd.
-// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only WITH Qt-GPL-exception-1.0
-
-#ifndef ELFREADER_H
-#define ELFREADER_H
-
-#include <QtCore/QList>
-#include <QtCore/QString>
-#include <QtCore/QtEndian>
-
-QT_BEGIN_NAMESPACE
-
-enum ElfProgramHeaderType
-{
-    Elf_PT_NULL    = 0,
-    Elf_PT_LOAD    = 1,
-    Elf_PT_DYNAMIC = 2,
-    Elf_PT_INTERP  = 3,
-    Elf_PT_NOTE    = 4,
-    Elf_PT_SHLIB   = 5,
-    Elf_PT_PHDR    = 6,
-    Elf_PT_TLS     = 7,
-    Elf_PT_NUM     = 8
-};
-
-enum ElfSectionHeaderType
-{
-    Elf_SHT_NULL          = 0,
-    Elf_SHT_PROGBITS      = 1,
-    Elf_SHT_SYMTAB        = 2,
-    Elf_SHT_STRTAB        = 3,
-    Elf_SHT_RELA          = 4,
-    Elf_SHT_HASH          = 5,
-    Elf_SHT_DYNAMIC       = 6,
-    Elf_SHT_NOTE          = 7,
-    Elf_SHT_NOBITS        = 8,
-    Elf_SHT_REL           = 9,
-    Elf_SHT_SHLIB         = 10,
-    Elf_SHT_DYNSYM        = 11,
-    Elf_SHT_INIT_ARRAY    = 14,
-    Elf_SHT_FINI_ARRAY    = 15,
-    Elf_SHT_PREINIT_ARRAY = 16,
-    Elf_SHT_GROUP         = 17,
-    Elf_SHT_SYMTAB_SHNDX  = 18
-};
-
-enum ElfEndian
-{
-    Elf_ELFDATANONE = 0,
-    Elf_ELFDATA2LSB = 1,
-    Elf_ELFDATA2MSB = 2,
-    Elf_ELFDATANUM  = 3
-};
-
-enum ElfClass
-{
-    Elf_ELFCLASS32 = 1,
-    Elf_ELFCLASS64 = 2
-};
-
-enum ElfType
-{
-    Elf_ET_NONE = 0,
-    Elf_ET_REL  = 1,
-    Elf_ET_EXEC = 2,
-    Elf_ET_DYN  = 3,
-    Elf_ET_CORE = 4
-};
-
-enum ElfMachine
-{
-    Elf_EM_386    =  3,
-    Elf_EM_ARM    = 40,
-    Elf_EM_X86_64 = 62
-};
-
-enum DebugSymbolsType
-{
-    UnknownSymbols   = 0,    // Unknown.
-    NoSymbols        = 1,    // No usable symbols.
-    LinkedSymbols    = 2,    // Link to symbols available.
-    BuildIdSymbols   = 4,    // BuildId available.
-    PlainSymbols     = 8,    // Ordinary symbols available.
-    FastSymbols      = 16    // Dwarf index available.
-};
-
-class ElfSectionHeader
-{
-public:
-    QByteArray name;
-    quint32 index;
-    quint32 type;
-    quint32 flags;
-    quint64 offset;
-    quint64 size;
-    quint64 addr;
-};
-
-class ElfProgramHeader
-{
-public:
-    quint32 name;
-    quint32 type;
-    quint64 offset;
-    quint64 filesz;
-    quint64 memsz;
-};
-
-class ElfData
-{
-public:
-    ElfData() : symbolsType(UnknownSymbols) {}
-    int indexOf(const QByteArray &name) const;
-
-public:
-    ElfEndian  endian;
-    ElfType    elftype;
-    ElfMachine elfmachine;
-    ElfClass   elfclass;
-    quint64    entryPoint;
-    QByteArray debugLink;
-    QByteArray buildId;
-    DebugSymbolsType symbolsType;
-    QList<ElfSectionHeader> sectionHeaders;
-    QList<ElfProgramHeader> programHeaders;
-};
-
-class ElfReader
-{
-public:
-    explicit ElfReader(const QString &binary);
-    enum Result { Ok, NotElf, Corrupt };
-
-    ElfData readHeaders();
-    QByteArray readSection(const QByteArray &sectionName);
-    QString errorString() const { return m_errorString; }
-    QByteArray readCoreName(bool *isCore);
-    QList<QByteArray> dependencies();
-
-private:
-    friend class ElfMapper;
-    Result readIt();
-
-    QString m_binary;
-    QString m_errorString;
-    ElfData m_elfData;
-};
-
-QT_END_NAMESPACE
-
-#endif // ELFREADER_H
diff --git a/src/tools/windeployqt/main.cpp b/src/tools/windeployqt/main.cpp
index e0d4a504..2d778753 100644
--- a/src/tools/windeployqt/main.cpp
+++ b/src/tools/windeployqt/main.cpp
@@ -116,8 +116,6 @@ static QByteArray formatQtModules(const ModuleBitset &mask, bool option = false)
 
 static Platform platformFromMkSpec(const QString &xSpec)
 {
-    if (xSpec == "linux-g++"_L1)
-        return Unix;
     if (xSpec.startsWith("win32-"_L1)) {
         if (xSpec.contains("clang-g++"_L1))
             return WindowsDesktopClangMinGW;
@@ -712,7 +710,8 @@ static bool findDependentQtLibraries(const QString &qtBinDir, const QString &bin
     QStringList dependentLibs;
     if (directDependencyCount)
         *directDependencyCount = 0;
-    if (!readExecutable(binary, platform, errorMessage, &dependentLibs, wordSize, isDebug, machineArch)) {
+    if (!readPeExecutable(binary, errorMessage, &dependentLibs, wordSize, isDebug,
+                          platform == WindowsDesktopMinGW, machineArch)) {
         errorMessage->prepend("Unable to find dependent libraries of "_L1 +
                               QDir::toNativeSeparators(binary) + " :"_L1);
         return false;
@@ -937,19 +936,9 @@ QStringList findQtPlugins(ModuleBitset *usedQtModules, const ModuleBitset &disab
             QString filter;
             const bool isPlatformPlugin = subDirName == "platforms"_L1;
             if (isPlatformPlugin) {
-                switch (platform) {
-                case WindowsDesktopMsvc:
-                case WindowsDesktopMinGW:
-                    filter = QStringLiteral("qwindows");
-                    if (!infix.isEmpty())
-                        filter += infix;
-                    break;
-                case Unix:
-                    filter = QStringLiteral("libqxcb");
-                    break;
-                case UnknownPlatform:
-                    break;
-                }
+                filter = QStringLiteral("qwindows");
+                if (!infix.isEmpty())
+                    filter += infix;
             } else {
                 filter = u"*"_s;
             }
@@ -1055,17 +1044,11 @@ static QString libraryPath(const QString &libraryLocation, const char *name,
                            const QString &infix, Platform platform, bool debug)
 {
     QString result = libraryLocation + u'/';
-    if (platform & WindowsBased) {
-        result += QLatin1StringView(name);
-        result += infix;
-        if (debug && platformHasDebugSuffix(platform))
-            result += u'd';
-    } else if (platform.testFlag(UnixBased)) {
-        result += QStringLiteral("lib");
-        result += QLatin1StringView(name);
-        result += infix;
-    }
-    result += sharedLibrarySuffix(platform);
+    result += QLatin1StringView(name);
+    result += infix;
+    if (debug && platformHasDebugSuffix(platform))
+        result += u'd';
+    result += sharedLibrarySuffix();
     return result;
 }
 
@@ -1112,7 +1095,7 @@ static QStringList findMinGWRuntimePaths(const QString &qtBinDir, Platform platf
     QStringList result;
     const bool isClang = platform == WindowsDesktopClangMinGW;
     QStringList filters;
-    const QString suffix = u'*' + sharedLibrarySuffix(platform);
+    const QString suffix = u'*' + sharedLibrarySuffix();
     for (const auto &minGWRuntime : runtimeFilters)
         filters.append(minGWRuntime + suffix);
 
@@ -1244,9 +1227,7 @@ static DeployResult deploy(const Options &options, const QMap<QString, QString>
     const QChar slash = u'/';
 
     const QString qtBinDir = qtpathsVariables.value(QStringLiteral("QT_INSTALL_BINS"));
-    const QString libraryLocation = options.platform == Unix
-            ? qtpathsVariables.value(QStringLiteral("QT_INSTALL_LIBS"))
-            : qtBinDir;
+    const QString libraryLocation = qtBinDir;
     const QString infix = qtpathsVariables.value(QLatin1StringView(qmakeInfixKey));
     const int version = qtVersion(qtpathsVariables);
     Q_UNUSED(version);
@@ -1325,7 +1306,7 @@ static DeployResult deploy(const Options &options, const QMap<QString, QString>
         const QStringList qtLibs = dependentQtLibs.filter(QStringLiteral("Qt6Core"), Qt::CaseInsensitive)
             + dependentQtLibs.filter(QStringLiteral("Qt5WebKit"), Qt::CaseInsensitive);
         for (const QString &qtLib : qtLibs) {
-            QStringList icuLibs = findDependentLibraries(qtLib, options.platform, errorMessage).filter(QStringLiteral("ICU"), Qt::CaseInsensitive);
+            QStringList icuLibs = findDependentLibraries(qtLib, errorMessage).filter(QStringLiteral("ICU"), Qt::CaseInsensitive);
             if (!icuLibs.isEmpty()) {
                 // Find out the ICU version to add the data library icudtXX.dll, which does not show
                 // as a dependency.
@@ -1456,7 +1437,7 @@ static DeployResult deploy(const Options &options, const QMap<QString, QString>
     }
 
     if (options.platform.testFlag(WindowsBased) && !qtGuiLibrary.isEmpty())  {
-        const QStringList guiLibraries = findDependentLibraries(qtGuiLibrary, options.platform, errorMessage);
+        const QStringList guiLibraries = findDependentLibraries(qtGuiLibrary, errorMessage);
         const bool dependsOnOpenGl = !guiLibraries.filter(QStringLiteral("opengl32"), Qt::CaseInsensitive).isEmpty();
         if (options.softwareRasterizer && !dependsOnOpenGl) {
             const QFileInfo softwareRasterizer(qtBinDir + slash + QStringLiteral("opengl32sw") + QLatin1StringView(windowsSharedLibrarySuffix));
@@ -1587,11 +1568,13 @@ static bool deployWebProcess(const QMap<QString, QString> &qtpathsVariables, con
 static bool deployWebEngineCore(const QMap<QString, QString> &qtpathsVariables,
                                 const Options &options, bool isDebug, QString *errorMessage)
 {
-    static const char *installDataFiles[] = {"icudtl.dat",
-                                             "qtwebengine_devtools_resources.pak",
-                                             "qtwebengine_resources.pak",
-                                             "qtwebengine_resources_100p.pak",
-                                             "qtwebengine_resources_200p.pak"};
+    static const char *installDataFiles[] = { "icudtl.dat",
+                                              "qtwebengine_devtools_resources.pak",
+                                              "qtwebengine_resources.pak",
+                                              "qtwebengine_resources_100p.pak",
+                                              "qtwebengine_resources_200p.pak",
+                                              isDebug ? "v8_context_snapshot.debug.bin"
+                                                      : "v8_context_snapshot.bin" };
     QByteArray webEngineProcessName(webEngineProcessC);
     if (isDebug && platformHasDebugSuffix(options.platform))
         webEngineProcessName.append('d');
diff --git a/src/tools/windeployqt/utils.cpp b/src/tools/windeployqt/utils.cpp
index d54d0758..f514511c 100644
--- a/src/tools/windeployqt/utils.cpp
+++ b/src/tools/windeployqt/utils.cpp
@@ -2,7 +2,6 @@
 // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only WITH Qt-GPL-exception-1.0
 
 #include "utils.h"
-#include "elfreader.h"
 
 #include <QtCore/QString>
 #include <QtCore/QDebug>
@@ -95,7 +94,7 @@ QStringList findSharedLibraries(const QDir &directory, Platform platform,
         nameFilter += u'*';
     if (debugMatchMode == MatchDebug && platformHasDebugSuffix(platform))
         nameFilter += u'd';
-    nameFilter += sharedLibrarySuffix(platform);
+    nameFilter += sharedLibrarySuffix();
     QStringList result;
     QString errorMessage;
     const QFileInfoList &dlls = directory.entryInfoList(QStringList(nameFilter), QDir::Files);
@@ -553,37 +552,6 @@ bool updateFile(const QString &sourceFileName, const QStringList &nameFilters,
     return true;
 }
 
-bool readElfExecutable(const QString &elfExecutableFileName, QString *errorMessage,
-                       QStringList *dependentLibraries, unsigned *wordSize,
-                       bool *isDebug)
-{
-    ElfReader elfReader(elfExecutableFileName);
-    const ElfData data = elfReader.readHeaders();
-    if (data.sectionHeaders.isEmpty()) {
-        *errorMessage = QStringLiteral("Unable to read ELF binary \"")
-            + QDir::toNativeSeparators(elfExecutableFileName) + QStringLiteral("\": ")
-            + elfReader.errorString();
-            return false;
-    }
-    if (wordSize)
-        *wordSize = data.elfclass == Elf_ELFCLASS64 ? 64 : 32;
-    if (dependentLibraries) {
-        dependentLibraries->clear();
-        const QList<QByteArray> libs = elfReader.dependencies();
-        if (libs.isEmpty()) {
-            *errorMessage = QStringLiteral("Unable to read dependenices of ELF binary \"")
-                + QDir::toNativeSeparators(elfExecutableFileName) + QStringLiteral("\": ")
-                + elfReader.errorString();
-                return false;
-        }
-        for (const QByteArray &l : libs)
-            dependentLibraries->push_back(QString::fromLocal8Bit(l));
-    }
-    if (isDebug)
-        *isDebug = data.symbolsType != UnknownSymbols && data.symbolsType != NoSymbols;
-    return true;
-}
-
 #ifdef Q_OS_WIN
 
 static inline QString stringFromRvaPtr(const void *rvaPtr)
@@ -719,33 +687,44 @@ static inline MsvcDebugRuntimeResult checkMsvcDebugRuntime(const QStringList &de
     return NoMsvcRuntime;
 }
 
+template <class ImageNtHeader>
+inline QStringList determineDependentLibs(const ImageNtHeader *nth, const void *fileMemory,
+                                           QString *errorMessage)
+{
+    return readImportSections(nth, fileMemory, errorMessage);
+}
+
+template <class ImageNtHeader>
+inline bool determineDebug(const ImageNtHeader *nth, const void *fileMemory,
+                           QStringList *dependentLibrariesIn, QString *errorMessage)
+{
+    if (nth->FileHeader.Characteristics & IMAGE_FILE_DEBUG_STRIPPED)
+        return false;
+
+    const QStringList dependentLibraries = dependentLibrariesIn != nullptr ?
+                *dependentLibrariesIn :
+                determineDependentLibs(nth, fileMemory, errorMessage);
+
+    const bool hasDebugEntry = nth->OptionalHeader.DataDirectory[IMAGE_DIRECTORY_ENTRY_DEBUG].Size;
+    // When an MSVC debug entry is present, check whether the debug runtime
+    // is actually used to detect -release / -force-debug-info builds.
+    const MsvcDebugRuntimeResult msvcrt = checkMsvcDebugRuntime(dependentLibraries);
+    if (msvcrt == NoMsvcRuntime)
+        return hasDebugEntry;
+    else
+        return hasDebugEntry && msvcrt == MsvcDebugRuntime;
+}
+
 template <class ImageNtHeader>
 inline void determineDebugAndDependentLibs(const ImageNtHeader *nth, const void *fileMemory,
-                                           bool isMinGW,
                                            QStringList *dependentLibrariesIn,
                                            bool *isDebugIn, QString *errorMessage)
 {
-    const bool hasDebugEntry = nth->OptionalHeader.DataDirectory[IMAGE_DIRECTORY_ENTRY_DEBUG].Size;
-    QStringList dependentLibraries;
-    if (dependentLibrariesIn || (isDebugIn != nullptr && hasDebugEntry && !isMinGW))
-        dependentLibraries = readImportSections(nth, fileMemory, errorMessage);
-
     if (dependentLibrariesIn)
-        *dependentLibrariesIn = dependentLibraries;
-    if (isDebugIn != nullptr) {
-        if (isMinGW) {
-            // Use logic that's used e.g. in objdump / pfd library
-            *isDebugIn = !(nth->FileHeader.Characteristics & IMAGE_FILE_DEBUG_STRIPPED);
-        } else {
-            // When an MSVC debug entry is present, check whether the debug runtime
-            // is actually used to detect -release / -force-debug-info builds.
-            const MsvcDebugRuntimeResult msvcrt = checkMsvcDebugRuntime(dependentLibraries);
-            if (msvcrt == NoMsvcRuntime)
-                *isDebugIn = hasDebugEntry;
-            else
-                *isDebugIn = hasDebugEntry && msvcrt == MsvcDebugRuntime;
-        }
-    }
+        *dependentLibrariesIn = determineDependentLibs(nth, fileMemory, errorMessage);
+
+    if (isDebugIn)
+        *isDebugIn = determineDebug(nth, fileMemory, dependentLibrariesIn, errorMessage);
 }
 
 // Read a PE executable and determine dependent libraries, word size
@@ -799,10 +778,10 @@ bool readPeExecutable(const QString &peExecutableFileName, QString *errorMessage
             *wordSizeIn = wordSize;
         if (wordSize == 32) {
             determineDebugAndDependentLibs(reinterpret_cast<const IMAGE_NT_HEADERS32 *>(ntHeaders),
-                                           fileMemory, isMinGW, dependentLibrariesIn, isDebugIn, errorMessage);
+                                           fileMemory, dependentLibrariesIn, isDebugIn, errorMessage);
         } else {
             determineDebugAndDependentLibs(reinterpret_cast<const IMAGE_NT_HEADERS64 *>(ntHeaders),
-                                           fileMemory, isMinGW, dependentLibrariesIn, isDebugIn, errorMessage);
+                                           fileMemory, dependentLibrariesIn, isDebugIn, errorMessage);
         }
 
         if (machineArchIn)
diff --git a/src/tools/windeployqt/utils.h b/src/tools/windeployqt/utils.h
index 5bf2cde1..358f10f4 100644
--- a/src/tools/windeployqt/utils.h
+++ b/src/tools/windeployqt/utils.h
@@ -20,7 +20,6 @@ QT_BEGIN_NAMESPACE
 enum PlatformFlag {
     // OS
     WindowsBased = 0x00001,
-    UnixBased    = 0x00002,
     // CPU
     IntelBased   = 0x00010,
     ArmBased     = 0x00020,
@@ -34,7 +33,6 @@ enum PlatformFlag {
     WindowsDesktopMinGW = WindowsBased + IntelBased + MinGW,
     WindowsDesktopClangMsvc = WindowsBased + IntelBased + ClangMsvc,
     WindowsDesktopClangMinGW = WindowsBased + IntelBased + ClangMinGW,
-    Unix = UnixBased,
     UnknownPlatform
 };
 
@@ -137,9 +135,8 @@ inline QString normalizeFileName(const QString &name) { return name; }
 #endif // !Q_OS_WIN
 
 static const char windowsSharedLibrarySuffix[] = ".dll";
-static const char unixSharedLibrarySuffix[] = ".so";
 
-inline QString sharedLibrarySuffix(Platform platform) { return QLatin1StringView((platform & WindowsBased) ? windowsSharedLibrarySuffix : unixSharedLibrarySuffix); }
+inline QString sharedLibrarySuffix() { return QLatin1StringView(windowsSharedLibrarySuffix); }
 bool isBuildDirectory(Platform platform, const QString &dirName);
 
 bool createSymbolicLink(const QFileInfo &source, const QString &target, QString *errorMessage);
@@ -170,19 +167,6 @@ bool runProcess(const QString &binary, const QStringList &args,
 bool readPeExecutable(const QString &peExecutableFileName, QString *errorMessage,
                       QStringList *dependentLibraries = 0, unsigned *wordSize = 0,
                       bool *isDebug = 0, bool isMinGW = false, unsigned short *machineArch = nullptr);
-bool readElfExecutable(const QString &elfExecutableFileName, QString *errorMessage,
-                      QStringList *dependentLibraries = 0, unsigned *wordSize = 0,
-                      bool *isDebug = 0);
-
-inline bool readExecutable(const QString &executableFileName, Platform platform,
-                           QString *errorMessage, QStringList *dependentLibraries = 0,
-                           unsigned *wordSize = 0, bool *isDebug = 0, unsigned short *machineArch = nullptr)
-{
-    return platform == Unix ?
-        readElfExecutable(executableFileName, errorMessage, dependentLibraries, wordSize, isDebug) :
-        readPeExecutable(executableFileName, errorMessage, dependentLibraries, wordSize, isDebug,
-                         (platform == WindowsDesktopMinGW), machineArch);
-}
 
 #ifdef Q_OS_WIN
 #  if !defined(IMAGE_FILE_MACHINE_ARM64)
@@ -193,10 +177,10 @@ QString getArchString (unsigned short machineArch);
 
 // Return dependent modules of executable files.
 
-inline QStringList findDependentLibraries(const QString &executableFileName, Platform platform, QString *errorMessage)
+inline QStringList findDependentLibraries(const QString &executableFileName, QString *errorMessage)
 {
     QStringList result;
-    readExecutable(executableFileName, platform, errorMessage, &result);
+    readPeExecutable(executableFileName, errorMessage, &result);
     return result;
 }
 
diff --git a/src/widgets/accessible/complexwidgets.cpp b/src/widgets/accessible/complexwidgets.cpp
index 4690a6e5..12480074 100644
--- a/src/widgets/accessible/complexwidgets.cpp
+++ b/src/widgets/accessible/complexwidgets.cpp
@@ -366,6 +366,7 @@ QAccessible::State QAccessibleComboBox::state() const
 
     s.expandable = true;
     s.expanded = isValid() && comboBox()->view()->isVisible();
+    s.editable = comboBox()->isEditable();
 
     return s;
 }
diff --git a/src/widgets/accessible/simplewidgets.cpp b/src/widgets/accessible/simplewidgets.cpp
index da4566bf..fbbbab85 100644
--- a/src/widgets/accessible/simplewidgets.cpp
+++ b/src/widgets/accessible/simplewidgets.cpp
@@ -216,11 +216,9 @@ QStringList QAccessibleButton::actionNames() const
             names << toggleAction();
             break;
         default:
-            if (button()->isCheckable()) {
+            if (button()->isCheckable())
                 names <<  toggleAction();
-            } else {
-                names << pressAction();
-            }
+            names << pressAction();
             break;
         }
     }
diff --git a/src/widgets/dialogs/qdialog_p.h b/src/widgets/dialogs/qdialog_p.h
index e605dad8..bac33bde 100644
--- a/src/widgets/dialogs/qdialog_p.h
+++ b/src/widgets/dialogs/qdialog_p.h
@@ -105,7 +105,7 @@ template <typename T>
 class QAutoPointer {
     QPointer<T> o;
 public:
-    explicit QAutoPointer(T *t) noexcept : o(t) {}
+    Q_NODISCARD_CTOR explicit QAutoPointer(T *t) noexcept : o(t) {}
     ~QAutoPointer() { delete o; }
 
     T *operator->() const noexcept { return get(); }
diff --git a/src/widgets/dialogs/qerrormessage.cpp b/src/widgets/dialogs/qerrormessage.cpp
index a00af9a8..5a6d529f 100644
--- a/src/widgets/dialogs/qerrormessage.cpp
+++ b/src/widgets/dialogs/qerrormessage.cpp
@@ -85,7 +85,7 @@ void QErrorMessagePrivate::helperPrepareShow(QPlatformDialogHelper *helper)
     options->setWindowTitle(q->windowTitle());
     options->setText(QErrorMessage::tr("An error occurred"));
     options->setInformativeText(currentMessage);
-    options->setIcon(QMessageDialogOptions::Critical);
+    options->setStandardIcon(QMessageDialogOptions::Critical);
     options->setCheckBox(again->text(), again->checkState());
     messageDialogHelper->setOptions(options);
 }
diff --git a/src/widgets/dialogs/qfiledialog.cpp b/src/widgets/dialogs/qfiledialog.cpp
index ff7c48d9..e16cd07b 100644
--- a/src/widgets/dialogs/qfiledialog.cpp
+++ b/src/widgets/dialogs/qfiledialog.cpp
@@ -2322,13 +2322,8 @@ void QFileDialog::getOpenFileContent(const QString &nameFilter, const std::funct
         fileOpenCompleted(fileName, fileContent);
     };
 
-    auto dialogClosed = [=](int code) {
-        Q_UNUSED(code);
-        dialog->deleteLater();
-    };
-
     connect(dialog, &QFileDialog::fileSelected, fileSelected);
-    connect(dialog, &QFileDialog::finished, dialogClosed);
+    dialog->setAttribute(Qt::WA_DeleteOnClose);
     dialog->show();
 #endif
 }
@@ -2367,13 +2362,8 @@ void QFileDialog::saveFileContent(const QByteArray &fileContent, const QString &
         }
     };
 
-    auto dialogClosed = [=](int code) {
-        Q_UNUSED(code);
-        dialog->deleteLater();
-    };
-
     connect(dialog, &QFileDialog::fileSelected, fileSelected);
-    connect(dialog, &QFileDialog::finished, dialogClosed);
+    dialog->setAttribute(Qt::WA_DeleteOnClose);
     dialog->show();
 #endif
 }
diff --git a/src/widgets/dialogs/qmessagebox.cpp b/src/widgets/dialogs/qmessagebox.cpp
index d2907398..6f93837b 100644
--- a/src/widgets/dialogs/qmessagebox.cpp
+++ b/src/widgets/dialogs/qmessagebox.cpp
@@ -30,11 +30,17 @@
 #include "private/qabstractbutton_p.h"
 #include <QtGui/qpa/qplatformtheme.h>
 
+#include <QtCore/qanystringview.h>
+#include <QtCore/qdebug.h>
+#include <QtCore/qversionnumber.h>
+
 #ifdef Q_OS_WIN
 #    include <QtCore/qt_windows.h>
 #include <qpa/qplatformnativeinterface.h>
 #endif
 
+#include <optional>
+
 QT_BEGIN_NAMESPACE
 
 using namespace Qt::StringLiterals;
@@ -187,6 +193,7 @@ public:
     void retranslateStrings();
 
     void setVisible(bool visible) override;
+    bool canBeNativeDialog() const override;
 
     static int showOldMessageBox(QWidget *parent, QMessageBox::Icon icon,
                                  const QString &title, const QString &text,
@@ -769,6 +776,12 @@ void QMessageBoxPrivate::_q_helperClicked(QPlatformDialogHelper::StandardButton
     \sa ButtonRole, standardButtons
 */
 
+/*!
+    \enum QMessageBox::Option
+    \since 6.6
+    \value DontUseNativeDialog Don't use the native message dialog.
+*/
+
 /*!
     \fn void QMessageBox::buttonClicked(QAbstractButton *button)
 
@@ -994,6 +1007,12 @@ QMessageBox::StandardButton QMessageBox::standardButton(QAbstractButton *button)
     Returns a pointer corresponding to the standard button \a which,
     or \nullptr if the standard button doesn't exist in this message box.
 
+    \note Modifying the properties of the returned button may not be reflected
+    in native implementations of the message dialog. To customize dialog
+    buttons add a \l{addButton(QAbstractButton *button, QMessageBox::ButtonRole role)}
+    {custom button} or \l{addButton(const QString &text, QMessageBox::ButtonRole role)}
+    {button title} instead, or set the \l Option::DontUseNativeDialog option.
+
     \sa standardButtons, standardButton()
 */
 QAbstractButton *QMessageBox::button(StandardButton which) const
@@ -1224,6 +1243,78 @@ QCheckBox* QMessageBox::checkBox() const
     return d->checkbox;
 }
 
+/*!
+    \since 6.6
+    Sets the given \a option to be enabled if \a on is true; otherwise,
+    clears the given \a option.
+
+    Options (particularly the \l Option::DontUseNativeDialog option) should be set
+    before showing the dialog.
+
+    Setting options while the dialog is visible is not guaranteed to have
+    an immediate effect on the dialog.
+
+    Setting options after changing other properties may cause these
+    values to have no effect.
+
+    \sa options, testOption()
+*/
+void QMessageBox::setOption(QMessageBox::Option option, bool on)
+{
+    const QMessageBox::Options previousOptions = options();
+    if (!(previousOptions & option) != !on)
+        setOptions(previousOptions ^ option);
+}
+
+/*!
+    \since 6.6
+
+    Returns \c true if the given \a option is enabled; otherwise, returns
+    false.
+
+    \sa options, setOption()
+*/
+bool QMessageBox::testOption(QMessageBox::Option option) const
+{
+    Q_D(const QMessageBox);
+    return d->options->testOption(static_cast<QMessageDialogOptions::Option>(option));
+}
+
+void QMessageBox::setOptions(QMessageBox::Options options)
+{
+    Q_D(QMessageBox);
+
+    if (QMessageBox::options() == options)
+        return;
+
+    d->options->setOptions(QMessageDialogOptions::Option(int(options)));
+}
+
+QMessageBox::Options QMessageBox::options() const
+{
+    Q_D(const QMessageBox);
+    return QMessageBox::Options(int(d->options->options()));
+}
+
+/*!
+    \property QMessageBox::options
+    \brief Options that affect the look and feel of the dialog.
+    \since 6.6
+
+    By default, these options are disabled.
+
+    The option \l Option::DontUseNativeDialog should be set
+    before changing dialog properties or showing the dialog.
+
+    Setting options while the dialog is visible is not guaranteed to have
+    an immediate effect on the dialog.
+
+    Setting options after changing other properties may cause these
+    values to have no effect.
+
+    \sa setOption(), testOption()
+*/
+
 /*!
   \property QMessageBox::text
   \brief the message box text to be displayed.
@@ -2684,7 +2775,7 @@ void QMessageBoxPrivate::initHelper(QPlatformDialogHelper *h)
     static_cast<QPlatformMessageDialogHelper *>(h)->setOptions(options);
 }
 
-static QMessageDialogOptions::Icon helperIcon(QMessageBox::Icon i)
+static QMessageDialogOptions::StandardIcon helperIcon(QMessageBox::Icon i)
 {
     switch (i) {
     case QMessageBox::NoIcon:
@@ -2707,6 +2798,25 @@ static QPlatformDialogHelper::StandardButtons helperStandardButtons(QMessageBox
     return buttons;
 }
 
+bool QMessageBoxPrivate::canBeNativeDialog() const
+{
+    // Don't use Q_Q here! This function is called from ~QDialog,
+    // so Q_Q calling q_func() invokes undefined behavior (invalid cast in q_func()).
+    const QDialog * const q = static_cast<const QMessageBox*>(q_ptr);
+    if (nativeDialogInUse)
+        return true;
+    if (QCoreApplication::testAttribute(Qt::AA_DontUseNativeDialogs)
+        || q->testAttribute(Qt::WA_DontShowOnScreen)
+        || (options->options() & QMessageDialogOptions::Option::DontUseNativeDialog)) {
+        return false;
+    }
+
+    if (strcmp(QMessageBox::staticMetaObject.className(), q->metaObject()->className()) != 0)
+        return false;
+
+    return QDialogPrivate::canBeNativeDialog();
+}
+
 void QMessageBoxPrivate::helperPrepareShow(QPlatformDialogHelper *)
 {
     Q_Q(QMessageBox);
@@ -2716,13 +2826,29 @@ void QMessageBoxPrivate::helperPrepareShow(QPlatformDialogHelper *)
 #if QT_CONFIG(textedit)
     options->setDetailedText(q->detailedText());
 #endif
-    options->setIcon(helperIcon(q->icon()));
+    options->setStandardIcon(helperIcon(q->icon()));
     options->setIconPixmap(q->iconPixmap());
     options->setStandardButtons(helperStandardButtons(q));
     if (checkbox)
         options->setCheckBox(checkbox->text(), checkbox->checkState());
 }
 
+void qRequireVersion(int argc, char *argv[], QAnyStringView req)
+{
+    const auto required = QVersionNumber::fromString(req).normalized();
+    const auto current = QVersionNumber::fromString(qVersion()).normalized();
+    if (current >= required)
+        return;
+    std::optional<QApplication> application;
+    if (!qApp)
+        application.emplace(argc, argv);
+    const QString message = QApplication::tr("Application \"%1\" requires Qt %2, found Qt %3.")
+                                    .arg(qAppName(), required.toString(), current.toString());
+    QMessageBox::critical(nullptr, QApplication::tr("Incompatible Qt Library Error"),
+                          message, QMessageBox::Abort);
+    qFatal("%ls", qUtf16Printable(message));
+}
+
 #if QT_DEPRECATED_SINCE(6,2)
 /*!
     \deprecated
diff --git a/src/widgets/dialogs/qmessagebox.h b/src/widgets/dialogs/qmessagebox.h
index 44fa7ab5..3498fb29 100644
--- a/src/widgets/dialogs/qmessagebox.h
+++ b/src/widgets/dialogs/qmessagebox.h
@@ -5,13 +5,13 @@
 #define QMESSAGEBOX_H
 
 #include <QtWidgets/qtwidgetsglobal.h>
-
 #include <QtWidgets/qdialog.h>
 
 QT_REQUIRE_CONFIG(messagebox);
 
 QT_BEGIN_NAMESPACE
 
+class QAnyStringView;
 class QLabel;
 class QMessageBoxPrivate;
 class QAbstractButton;
@@ -31,10 +31,16 @@ class Q_WIDGETS_EXPORT QMessageBox : public QDialog
     Q_PROPERTY(QString informativeText READ informativeText WRITE setInformativeText)
     Q_PROPERTY(Qt::TextInteractionFlags textInteractionFlags READ textInteractionFlags
                WRITE setTextInteractionFlags)
-
+    Q_PROPERTY(Options options READ options WRITE setOptions)
 public:
+    // Keep in sync with MessageBoxOption in qplatformdialoghelper.h
+    enum class Option {
+        DontUseNativeDialog = 0x00000001
+    };
+    Q_FLAG(Option)
+
     enum Icon {
-        // keep this in sync with QMessageDialogOptions::Icon
+        // keep this in sync with QMessageDialogOptions::StandardIcon
         NoIcon = 0,
         Information = 1,
         Warning = 2,
@@ -95,8 +101,9 @@ public:
 #if QT_VERSION < QT_VERSION_CHECK(7, 0, 0)
     typedef StandardButton Button;
 #endif
-
+    Q_DECLARE_FLAGS(Options, Option)
     Q_DECLARE_FLAGS(StandardButtons, StandardButton)
+
     Q_FLAG(StandardButtons)
 
     explicit QMessageBox(QWidget *parent = nullptr);
@@ -149,6 +156,11 @@ public:
     void setCheckBox(QCheckBox *cb);
     QCheckBox* checkBox() const;
 
+    void setOption(Option option, bool on = true);
+    bool testOption(Option option) const;
+    void setOptions(Options options);
+    Options options() const;
+
     static StandardButton information(QWidget *parent, const QString &title,
          const QString &text, StandardButtons buttons = Ok,
          StandardButton defaultButton = NoButton);
@@ -300,20 +312,9 @@ private:
 
 Q_DECLARE_OPERATORS_FOR_FLAGS(QMessageBox::StandardButtons)
 
-#define QT_REQUIRE_VERSION(argc, argv, str) { QString s = QString::fromLatin1(str);\
-QString sq = QString::fromLatin1(qVersion()); \
-if ((sq.section(QChar::fromLatin1('.'),0,0).toInt()<<16)+\
-(sq.section(QChar::fromLatin1('.'),1,1).toInt()<<8)+\
-sq.section(QChar::fromLatin1('.'),2,2).toInt()<(s.section(QChar::fromLatin1('.'),0,0).toInt()<<16)+\
-(s.section(QChar::fromLatin1('.'),1,1).toInt()<<8)+\
-s.section(QChar::fromLatin1('.'),2,2).toInt()) { \
-if (!qApp){ \
-    new QApplication(argc,argv); \
-} \
-QString s = QApplication::tr("Executable '%1' requires Qt "\
- "%2, found Qt %3.").arg(qAppName()).arg(QString::fromLatin1(\
-str)).arg(QString::fromLatin1(qVersion())); QMessageBox::critical(0, QApplication::tr(\
-"Incompatible Qt Library Error"), s, QMessageBox::Abort, 0); qFatal("%s", s.toLatin1().data()); }}
+Q_WIDGETS_EXPORT void qRequireVersion(int argc, char *argv[], QAnyStringView req);
+
+#define QT_REQUIRE_VERSION(argc, argv, str) qRequireVersion(argc, argv, str);
 
 QT_END_NAMESPACE
 
diff --git a/src/widgets/dialogs/qwizard.cpp b/src/widgets/dialogs/qwizard.cpp
index c3d9ceae..8405f0a1 100644
--- a/src/widgets/dialogs/qwizard.cpp
+++ b/src/widgets/dialogs/qwizard.cpp
@@ -327,8 +327,7 @@ void QWizardHeader::setup(const QWizardLayoutInfo &info, const QString &title,
 {
     bool modern = ((info.wizStyle == QWizard::ModernStyle)
 #if QT_CONFIG(style_windowsvista)
-        || ((info.wizStyle == QWizard::AeroStyle
-            && QVistaHelper::vistaState() == QVistaHelper::Classic) || vistaDisabled())
+        || vistaDisabled()
 #endif
     );
 
@@ -534,7 +533,6 @@ public:
     void updatePixmap(QWizard::WizardPixmap which);
 #if QT_CONFIG(style_windowsvista)
     bool vistaDisabled() const;
-    bool isVistaThemeEnabled(QVistaHelper::VistaState state) const;
     bool handleAeroStyleChange();
 #endif
     bool isVistaThemeEnabled() const;
@@ -603,7 +601,7 @@ public:
     QPointer<QShortcut> vistaNextShortcut;
 #  endif
     bool vistaInitPending = true;
-    QVistaHelper::VistaState vistaState = QVistaHelper::Dirty;
+    bool vistaDirty = true;
     bool vistaStateChanged = false;
     bool inHandleAeroStyleChange = false;
 #endif
@@ -888,7 +886,7 @@ QWizardLayoutInfo QWizardPrivate::layoutInfoForCurrentPage()
     info.wizStyle = wizStyle;
     if (info.wizStyle == QWizard::AeroStyle
 #if QT_CONFIG(style_windowsvista)
-        && (QVistaHelper::vistaState() == QVistaHelper::Classic || vistaDisabled())
+        && vistaDisabled()
 #endif
         )
         info.wizStyle = QWizard::ModernStyle;
@@ -1519,13 +1517,6 @@ bool QWizardPrivate::vistaDisabled() const
     return v.isValid() && v.toBool();
 }
 
-bool QWizardPrivate::isVistaThemeEnabled(QVistaHelper::VistaState state) const
-{
-    return wizStyle == QWizard::AeroStyle
-        && QVistaHelper::vistaState() == state
-        && !vistaDisabled();
-}
-
 bool QWizardPrivate::handleAeroStyleChange()
 {
     Q_Q(QWizard);
@@ -1549,25 +1540,17 @@ bool QWizardPrivate::handleAeroStyleChange()
     if (isVistaThemeEnabled()) {
         const int topOffset = vistaHelper->topOffset(q);
         const int topPadding = vistaHelper->topPadding(q);
-        if (isVistaThemeEnabled(QVistaHelper::VistaAero)) {
-            if (isWindow) {
-                vistaHelper->setDWMTitleBar(QVistaHelper::ExtendedTitleBar);
-                q->installEventFilter(vistaHelper);
-            }
-            q->setMouseTracking(true);
-            antiFlickerWidget->move(0, vistaHelper->titleBarSize() + topOffset);
-            vistaHelper->backButton()->move(
-                0, topOffset // ### should ideally work without the '+ 1'
-                - qMin(topOffset, topPadding + 1));
-            vistaMargins = true;
-            vistaHelper->backButton()->show();
-        } else {
-            if (isWindow)
-                vistaHelper->setDWMTitleBar(QVistaHelper::NormalTitleBar);
-            q->setMouseTracking(true);
-            antiFlickerWidget->move(0, topOffset);
-            vistaHelper->backButton()->move(0, -1); // ### should ideally work with (0, 0)
+        if (isWindow) {
+            vistaHelper->setDWMTitleBar(QVistaHelper::ExtendedTitleBar);
+            q->installEventFilter(vistaHelper);
         }
+        q->setMouseTracking(true);
+        antiFlickerWidget->move(0, vistaHelper->titleBarSize() + topOffset);
+        vistaHelper->backButton()->move(
+            0, topOffset // ### should ideally work without the '+ 1'
+            - qMin(topOffset, topPadding + 1));
+        vistaMargins = true;
+        vistaHelper->backButton()->show();
         if (isWindow)
             vistaHelper->setTitleBarIconAndCaptionVisible(false);
         QObject::connect(
@@ -1596,8 +1579,7 @@ bool QWizardPrivate::handleAeroStyleChange()
 bool QWizardPrivate::isVistaThemeEnabled() const
 {
 #if QT_CONFIG(style_windowsvista)
-    return isVistaThemeEnabled(QVistaHelper::VistaAero)
-        || isVistaThemeEnabled(QVistaHelper::VistaBasic);
+    return wizStyle == QWizard::AeroStyle && !vistaDisabled();
 #else
     return false;
 #endif
@@ -1750,13 +1732,6 @@ void QWizardAntiFlickerWidget::paintEvent(QPaintEvent *)
         painter.fillRect(0, buttonLayoutTop, width(), height() - buttonLayoutTop, brush);
         painter.setPen(QPen(QBrush(QColor(223, 223, 223)), 0)); // ### hardcoded for now
         painter.drawLine(0, buttonLayoutTop, width(), buttonLayoutTop);
-        if (wizardPrivate->isVistaThemeEnabled(QVistaHelper::VistaBasic)) {
-            if (window()->isActiveWindow())
-                painter.setPen(QPen(QBrush(QColor(169, 191, 214)), 0)); // ### hardcoded for now
-            else
-                painter.setPen(QPen(QBrush(QColor(182, 193, 204)), 0)); // ### hardcoded for now
-            painter.drawLine(0, 0, width(), 0);
-        }
     }
 }
 #endif
@@ -3158,12 +3133,7 @@ bool QWizard::event(QEvent *event)
 #if QT_CONFIG(style_windowsvista)
     else if (event->type() == QEvent::Show && d->vistaInitPending) {
         d->vistaInitPending = false;
-        // Do not force AeroStyle when in Classic theme.
-        // Note that d->handleAeroStyleChange() needs to be called in any case as it does some
-        // necessary initialization, like ensures that the Aero specific back button is hidden if
-        // Aero theme isn't active.
-        if (QVistaHelper::vistaState() != QVistaHelper::Classic)
-            d->wizStyle = AeroStyle;
+        d->wizStyle = AeroStyle;
         d->handleAeroStyleChange();
     }
     else if (d->isVistaThemeEnabled()) {
@@ -3193,8 +3163,7 @@ void QWizard::resizeEvent(QResizeEvent *event)
 #if QT_CONFIG(style_windowsvista)
     if (d->isVistaThemeEnabled()) {
         heightOffset = d->vistaHelper->topOffset(this);
-        if (d->isVistaThemeEnabled(QVistaHelper::VistaAero))
-            heightOffset += d->vistaHelper->titleBarSize();
+        heightOffset += d->vistaHelper->titleBarSize();
     }
 #endif
     d->antiFlickerWidget->resize(event->size().width(), event->size().height() - heightOffset);
@@ -3221,11 +3190,6 @@ void QWizard::paintEvent(QPaintEvent * event)
     }
 #if QT_CONFIG(style_windowsvista)
     else if (d->isVistaThemeEnabled()) {
-        if (d->isVistaThemeEnabled(QVistaHelper::VistaBasic)) {
-            QPainter painter(this);
-            QColor color = d->vistaHelper->basicWindowFrameColor();
-            painter.fillRect(0, 0, width(), QVistaHelper::topOffset(this), color);
-        }
         d->vistaHelper->paintEvent(event);
     }
 #else
@@ -3244,12 +3208,12 @@ bool QWizard::nativeEvent(const QByteArray &eventType, void *message, qintptr *r
     if (d->isVistaThemeEnabled() && eventType == "windows_generic_MSG") {
         MSG *windowsMessage = static_cast<MSG *>(message);
         const bool winEventResult = d->vistaHelper->handleWinEvent(windowsMessage, result);
-        if (QVistaHelper::vistaState() != d->vistaState) {
+        if (d->vistaDirty) {
             // QTBUG-78300: When Qt::AA_NativeWindows is set, delay further
             // window creation until after the platform window creation events.
             if (windowsMessage->message == WM_GETICON) {
                 d->vistaStateChanged = true;
-                d->vistaState = QVistaHelper::vistaState();
+                d->vistaDirty = false;
                 setWizardStyle(AeroStyle);
             }
         }
diff --git a/src/widgets/dialogs/qwizard_win.cpp b/src/widgets/dialogs/qwizard_win.cpp
index b34b2d82..2c4f049e 100644
--- a/src/widgets/dialogs/qwizard_win.cpp
+++ b/src/widgets/dialogs/qwizard_win.cpp
@@ -33,9 +33,7 @@ Q_DECLARE_METATYPE(QMargins)
 
 QT_BEGIN_NAMESPACE
 
-int QVistaHelper::instanceCount = 0;
 qreal QVistaHelper::m_devicePixelRatio = 1.0;
-QVistaHelper::VistaState QVistaHelper::cachedVistaState = QVistaHelper::Dirty;
 
 /******************************************************************************
 ** QVistaBackButton
@@ -118,18 +116,14 @@ QVistaHelper::QVistaHelper(QWizard *wizard)
     , backButton_(0)
 {
     QVistaHelper::m_devicePixelRatio = wizard->devicePixelRatio();
-    if (instanceCount++ == 0)
-        cachedVistaState = Dirty;
+
     backButton_ = new QVistaBackButton(wizard);
     backButton_->hide();
 
     iconSpacing = QStyleHelper::dpiScaled(7, wizard);
 }
 
-QVistaHelper::~QVistaHelper()
-{
-    --instanceCount;
-}
+QVistaHelper::~QVistaHelper() = default;
 
 void QVistaHelper::updateCustomMargins(bool vistaMargins)
 {
@@ -150,24 +144,6 @@ void QVistaHelper::updateCustomMargins(bool vistaMargins)
     }
 }
 
-bool QVistaHelper::isCompositionEnabled()
-{
-    return true;
-}
-
-bool QVistaHelper::isThemeActive()
-{
-    return IsThemeActive();
-}
-
-QVistaHelper::VistaState QVistaHelper::vistaState()
-{
-    if (instanceCount == 0 || cachedVistaState == Dirty)
-        cachedVistaState =
-            isCompositionEnabled() ? VistaAero : isThemeActive() ? VistaBasic : Classic;
-    return cachedVistaState;
-}
-
 void QVistaHelper::disconnectBackButton()
 {
     if (backButton_) // Leave QStyleSheetStyle's connections on destroyed() intact.
@@ -188,18 +164,16 @@ QColor QVistaHelper::basicWindowFrameColor()
 
 bool QVistaHelper::setDWMTitleBar(TitleBarChangeType type)
 {
-    bool value = false;
-    if (vistaState() == VistaAero) {
-        MARGINS mar = {0, 0, 0, 0};
-        if (type == NormalTitleBar)
-            mar.cyTopHeight = 0;
-        else
-            mar.cyTopHeight = (titleBarSize() + topOffset(wizard)) * QVistaHelper::m_devicePixelRatio;
-        if (const HWND wizardHandle = wizardHWND())
-            if (SUCCEEDED(DwmExtendFrameIntoClientArea(wizardHandle, &mar)))
-                value = true;
+    MARGINS mar = {0, 0, 0, 0};
+    if (type == NormalTitleBar)
+        mar.cyTopHeight = 0;
+    else
+        mar.cyTopHeight = (titleBarSize() + topOffset(wizard)) * QVistaHelper::m_devicePixelRatio;
+    if (const HWND wizardHandle = wizardHWND()) {
+        if (SUCCEEDED(DwmExtendFrameIntoClientArea(wizardHandle, &mar)))
+            return true;
     }
-    return value;
+    return false;
 }
 
 Q_GUI_EXPORT HICON qt_pixmapToWinHICON(const QPixmap &);
@@ -235,7 +209,7 @@ void QVistaHelper::drawTitleBar(QPainter *painter)
     const bool isWindow = wizard->isWindow();
     const HDC hdc = QVistaHelper::backingStoreDC(wizard, &origin);
 
-    if (vistaState() == VistaAero && isWindow)
+    if (isWindow)
         drawBlackRect(QRect(0, 0, wizard->width(),
                             titleBarSize() + topOffset(wizard)), hdc);
     // The button is positioned in QWizardPrivate::handleAeroStyleChange(),
@@ -250,15 +224,9 @@ void QVistaHelper::drawTitleBar(QPainter *painter)
         font = QApplication::font("QMdiSubWindowTitleBar");
     const QFontMetrics fontMetrics(font);
     const QRect brect = fontMetrics.boundingRect(text);
-    int textHeight = brect.height();
-    int textWidth = brect.width();
-    int glowOffset = 0;
-
-    if (vistaState() == VistaAero) {
-        glowOffset = glowSize(wizard);
-        textHeight += 2 * glowOffset;
-        textWidth += 2 * glowOffset;
-    }
+    const int glowOffset = glowSize(wizard);
+    int textHeight = brect.height() + 2 * glowOffset;
+    int textWidth = brect.width() + 2 * glowOffset;
 
     const int titleLeft = (wizard->layoutDirection() == Qt::LeftToRight
                            ? titleOffset() - glowOffset
@@ -365,11 +333,8 @@ void QVistaHelper::mouseEvent(QEvent *event)
 
 bool QVistaHelper::handleWinEvent(MSG *message, qintptr *result)
 {
-    if (message->message == WM_THEMECHANGED || message->message == WM_DWMCOMPOSITIONCHANGED)
-        cachedVistaState = Dirty;
-
     bool status = false;
-    if (wizard->wizardStyle() == QWizard::AeroStyle && vistaState() == VistaAero) {
+    if (wizard->wizardStyle() == QWizard::AeroStyle) {
         status = winEvent(message, result);
         if (message->message == WM_NCPAINT)
             wizard->update();
@@ -382,8 +347,6 @@ void QVistaHelper::resizeEvent(QResizeEvent * event)
     Q_UNUSED(event);
     rtTop = QRect (0, 0, wizard->width(), frameSize());
     int height = captionSize() + topOffset(wizard);
-    if (vistaState() == VistaBasic)
-        height -= titleBarSize();
     rtTitle = QRect (0, frameSize(), wizard->width(), height);
 }
 
@@ -422,7 +385,7 @@ void QVistaHelper::mouseMoveEvent(QMouseEvent *event)
         }
         wizard->setGeometry(rect);
 
-    } else if (vistaState() == VistaAero) {
+    } else {
         setMouseCursor(event->pos());
     }
     event->ignore();
@@ -440,11 +403,10 @@ void QVistaHelper::mousePressEvent(QMouseEvent *event)
     if (rtTitle.contains(event->pos())) {
         change = movePosition;
     } else if (rtTop.contains(event->pos()))
-        change = (vistaState() == VistaAero) ? resizeTop : movePosition;
+        change = resizeTop;
 
     if (change != noChange) {
-        if (vistaState() == VistaAero)
-            setMouseCursor(event->pos());
+        setMouseCursor(event->pos());
         pressed = true;
         pressedPos = event->pos();
     } else {
@@ -458,8 +420,7 @@ void QVistaHelper::mouseReleaseEvent(QMouseEvent *event)
     if (pressed) {
         pressed = false;
         wizard->releaseMouse();
-        if (vistaState() == VistaAero)
-            setMouseCursor(event->pos());
+        setMouseCursor(event->pos());
     }
     event->ignore();
 }
@@ -547,95 +508,88 @@ HWND QVistaHelper::wizardHWND() const
     return 0;
 }
 
-bool QVistaHelper::drawTitleText(QPainter *painter, const QString &text, const QRect &rect, HDC hdc)
+void QVistaHelper::drawTitleText(QPainter *painter, const QString &text, const QRect &rect, HDC hdc)
 {
-    bool value = false;
-    if (vistaState() == VistaAero) {
-        const QRect rectDp = QRect(rect.topLeft() * QVistaHelper::m_devicePixelRatio,
-                                   rect.size() * QVistaHelper::m_devicePixelRatio);
-        const HANDLE hTheme = OpenThemeData(GetDesktopWindow(), L"WINDOW");
-        if (!hTheme) return false;
-        // Set up a memory DC and bitmap that we'll draw into
-        HDC dcMem;
-        HBITMAP bmp;
-        BITMAPINFO dib;
-        ZeroMemory(&dib, sizeof(dib));
-        dcMem = CreateCompatibleDC(hdc);
+    Q_UNUSED(painter);
 
-        dib.bmiHeader.biSize = sizeof(BITMAPINFOHEADER);
-        dib.bmiHeader.biWidth = rectDp.width();
-        dib.bmiHeader.biHeight = -rectDp.height();
-        dib.bmiHeader.biPlanes = 1;
-        dib.bmiHeader.biBitCount = 32;
-        dib.bmiHeader.biCompression = BI_RGB;
+    const QRect rectDp = QRect(rect.topLeft() * QVistaHelper::m_devicePixelRatio,
+                               rect.size() * QVistaHelper::m_devicePixelRatio);
+    const HANDLE hTheme = OpenThemeData(GetDesktopWindow(), L"WINDOW");
+    if (!hTheme)
+        return;
+    // Set up a memory DC and bitmap that we'll draw into
+    HDC dcMem;
+    HBITMAP bmp;
+    BITMAPINFO dib;
+    ZeroMemory(&dib, sizeof(dib));
+    dcMem = CreateCompatibleDC(hdc);
 
-        bmp = CreateDIBSection(hdc, &dib, DIB_RGB_COLORS, NULL, NULL, 0);
+    dib.bmiHeader.biSize = sizeof(BITMAPINFOHEADER);
+    dib.bmiHeader.biWidth = rectDp.width();
+    dib.bmiHeader.biHeight = -rectDp.height();
+    dib.bmiHeader.biPlanes = 1;
+    dib.bmiHeader.biBitCount = 32;
+    dib.bmiHeader.biCompression = BI_RGB;
 
-        // Set up the DC
-        const LOGFONT captionLogFont = getCaptionLogFont(hTheme);
-        const HFONT hCaptionFont = CreateFontIndirect(&captionLogFont);
-        auto hOldBmp = reinterpret_cast<HBITMAP>(SelectObject(dcMem, (HGDIOBJ) bmp));
-        auto hOldFont = reinterpret_cast<HFONT>(SelectObject(dcMem, (HGDIOBJ) hCaptionFont));
+    bmp = CreateDIBSection(hdc, &dib, DIB_RGB_COLORS, NULL, NULL, 0);
 
-        // Draw the text!
-        DTTOPTS dto;
-        memset(&dto, 0, sizeof(dto));
-        dto.dwSize = sizeof(dto);
-        const UINT uFormat = DT_SINGLELINE|DT_CENTER|DT_VCENTER|DT_NOPREFIX;
-        RECT rctext ={0,0, rectDp.width(), rectDp.height()};
+    // Set up the DC
+    const LOGFONT captionLogFont = getCaptionLogFont(hTheme);
+    const HFONT hCaptionFont = CreateFontIndirect(&captionLogFont);
+    auto hOldBmp = reinterpret_cast<HBITMAP>(SelectObject(dcMem, (HGDIOBJ) bmp));
+    auto hOldFont = reinterpret_cast<HFONT>(SelectObject(dcMem, (HGDIOBJ) hCaptionFont));
 
-        dto.dwFlags = DTT_COMPOSITED|DTT_GLOWSIZE;
-        dto.iGlowSize = glowSize(wizard);
+    // Draw the text!
+    DTTOPTS dto;
+    memset(&dto, 0, sizeof(dto));
+    dto.dwSize = sizeof(dto);
+    const UINT uFormat = DT_SINGLELINE|DT_CENTER|DT_VCENTER|DT_NOPREFIX;
+    RECT rctext ={0,0, rectDp.width(), rectDp.height()};
 
-        DrawThemeTextEx(hTheme, dcMem, 0, 0, reinterpret_cast<LPCWSTR>(text.utf16()), -1, uFormat, &rctext, &dto );
-        BitBlt(hdc, rectDp.left(), rectDp.top(), rectDp.width(), rectDp.height(), dcMem, 0, 0, SRCCOPY);
-        SelectObject(dcMem, (HGDIOBJ) hOldBmp);
-        SelectObject(dcMem, (HGDIOBJ) hOldFont);
-        DeleteObject(bmp);
-        DeleteObject(hCaptionFont);
-        DeleteDC(dcMem);
-        //ReleaseDC(hwnd, hdc);
-    } else if (vistaState() == VistaBasic) {
-        painter->drawText(rect, text);
-    }
-    return value;
+    dto.dwFlags = DTT_COMPOSITED|DTT_GLOWSIZE;
+    dto.iGlowSize = glowSize(wizard);
+
+    DrawThemeTextEx(hTheme, dcMem, 0, 0, reinterpret_cast<LPCWSTR>(text.utf16()), -1, uFormat, &rctext, &dto );
+    BitBlt(hdc, rectDp.left(), rectDp.top(), rectDp.width(), rectDp.height(), dcMem, 0, 0, SRCCOPY);
+    SelectObject(dcMem, (HGDIOBJ) hOldBmp);
+    SelectObject(dcMem, (HGDIOBJ) hOldFont);
+    DeleteObject(bmp);
+    DeleteObject(hCaptionFont);
+    DeleteDC(dcMem);
+    //ReleaseDC(hwnd, hdc);
 }
 
-bool QVistaHelper::drawBlackRect(const QRect &rect, HDC hdc)
+void QVistaHelper::drawBlackRect(const QRect &rect, HDC hdc)
 {
-    bool value = false;
-    if (vistaState() == VistaAero) {
-        // Set up a memory DC and bitmap that we'll draw into
-        const QRect rectDp = QRect(rect.topLeft() * QVistaHelper::m_devicePixelRatio,
+    // Set up a memory DC and bitmap that we'll draw into
+    const QRect rectDp = QRect(rect.topLeft() * QVistaHelper::m_devicePixelRatio,
                                    rect.size() * QVistaHelper::m_devicePixelRatio);
-        HDC dcMem;
-        HBITMAP bmp;
-        BITMAPINFO dib;
-        ZeroMemory(&dib, sizeof(dib));
-        dcMem = CreateCompatibleDC(hdc);
+    HDC dcMem;
+    HBITMAP bmp;
+    BITMAPINFO dib;
+    ZeroMemory(&dib, sizeof(dib));
+    dcMem = CreateCompatibleDC(hdc);
 
-        dib.bmiHeader.biSize = sizeof(BITMAPINFOHEADER);
-        dib.bmiHeader.biWidth = rectDp.width();
-        dib.bmiHeader.biHeight = -rectDp.height();
-        dib.bmiHeader.biPlanes = 1;
-        dib.bmiHeader.biBitCount = 32;
-        dib.bmiHeader.biCompression = BI_RGB;
+    dib.bmiHeader.biSize = sizeof(BITMAPINFOHEADER);
+    dib.bmiHeader.biWidth = rectDp.width();
+    dib.bmiHeader.biHeight = -rectDp.height();
+    dib.bmiHeader.biPlanes = 1;
+    dib.bmiHeader.biBitCount = 32;
+    dib.bmiHeader.biCompression = BI_RGB;
 
-        bmp = CreateDIBSection(hdc, &dib, DIB_RGB_COLORS, NULL, NULL, 0);
-        auto hOldBmp = reinterpret_cast<HBITMAP>(SelectObject(dcMem, (HGDIOBJ) bmp));
+    bmp = CreateDIBSection(hdc, &dib, DIB_RGB_COLORS, NULL, NULL, 0);
+    auto hOldBmp = reinterpret_cast<HBITMAP>(SelectObject(dcMem, (HGDIOBJ) bmp));
 
-        BitBlt(hdc, rectDp.left(), rectDp.top(), rectDp.width(), rectDp.height(), dcMem, 0, 0, SRCCOPY);
-        SelectObject(dcMem, (HGDIOBJ) hOldBmp);
+    BitBlt(hdc, rectDp.left(), rectDp.top(), rectDp.width(), rectDp.height(), dcMem, 0, 0, SRCCOPY);
+    SelectObject(dcMem, (HGDIOBJ) hOldBmp);
 
-        DeleteObject(bmp);
-        DeleteDC(dcMem);
-    }
-    return value;
+    DeleteObject(bmp);
+    DeleteDC(dcMem);
 }
 
 int QVistaHelper::frameSizeDp()
 {
-    return GetSystemMetrics(SM_CYSIZEFRAME);
+    return GetSystemMetrics(SM_CXSIZEFRAME) + GetSystemMetrics(SM_CXPADDEDBORDER);
 }
 
 int QVistaHelper::captionSizeDp()
@@ -661,8 +615,6 @@ int QVistaHelper::glowSize(const QPaintDevice *device)
 
 int QVistaHelper::topOffset(const QPaintDevice *device)
 {
-    if (vistaState() != VistaAero)
-        return titleBarSize() + 3;
     static const int aeroOffset = QStyleHelper::dpiScaled(13, device);
     return aeroOffset + titleBarSize();
 }
diff --git a/src/widgets/dialogs/qwizard_win_p.h b/src/widgets/dialogs/qwizard_win_p.h
index 7ec05620..ce0f7b85 100644
--- a/src/widgets/dialogs/qwizard_win_p.h
+++ b/src/widgets/dialogs/qwizard_win_p.h
@@ -64,8 +64,6 @@ public:
     void disconnectBackButton();
     void hideBackButton() { if (backButton_) backButton_->hide(); }
     QColor basicWindowFrameColor();
-    enum VistaState { VistaAero, VistaBasic, Classic, Dirty };
-    static VistaState vistaState();
     static int titleBarSize() { return QVistaHelper::titleBarSizeDp() / QVistaHelper::m_devicePixelRatio; }
     static int titleBarSizeDp() { return QVistaHelper::frameSizeDp() + QVistaHelper::captionSizeDp(); }
     static int topPadding(const QPaintDevice *device) { // padding under text
@@ -77,8 +75,8 @@ public:
 
 private:
     HWND wizardHWND() const;
-    bool drawTitleText(QPainter *painter, const QString &text, const QRect &rect, HDC hdc);
-    static bool drawBlackRect(const QRect &rect, HDC hdc);
+    void drawTitleText(QPainter *painter, const QString &text, const QRect &rect, HDC hdc);
+    static void drawBlackRect(const QRect &rect, HDC hdc);
 
     static int frameSize() { return QVistaHelper::frameSizeDp() / QVistaHelper::m_devicePixelRatio; }
     static int frameSizeDp();
@@ -102,10 +100,6 @@ private:
     void mouseReleaseEvent(QMouseEvent *event);
     bool eventFilter(QObject *obj, QEvent *event) override;
 
-    static int instanceCount;
-    static VistaState cachedVistaState;
-    static bool isCompositionEnabled();
-    static bool isThemeActive();
     enum Changes { resizeTop, movePosition, noChange } change;
     QPoint pressedPos;
     bool pressed;
diff --git a/src/widgets/doc/qtwidgets.qdocconf b/src/widgets/doc/qtwidgets.qdocconf
index a63a2f5f..d5f0809c 100644
--- a/src/widgets/doc/qtwidgets.qdocconf
+++ b/src/widgets/doc/qtwidgets.qdocconf
@@ -60,7 +60,3 @@ imagedirs   += images \
 
 navigation.landingpage = "Qt Widgets"
 navigation.cppclassespage = "Qt Widgets C++ Classes"
-manifestmeta.highlighted.names = "QtWidgets/Qt Widgets - Application Example"
-
-# Fail the documentation build if there are more warnings than the limit
-warninglimit = 0
diff --git a/src/widgets/doc/snippets/code/src_gui_kernel_qwidget.cpp b/src/widgets/doc/snippets/code/src_gui_kernel_qwidget.cpp
index d842ec31..21703c73 100644
--- a/src/widgets/doc/snippets/code/src_gui_kernel_qwidget.cpp
+++ b/src/widgets/doc/snippets/code/src_gui_kernel_qwidget.cpp
@@ -48,6 +48,11 @@ setTabOrder(c, d); // a to b to c to d
 //! [9]
 
 
+//! [9.list]
+setTabOrder({a, b, c, d}); // a to b to c to d
+//! [9.list]
+
+
 //! [10]
 // WRONG
 setTabOrder(c, d); // c to d
diff --git a/src/widgets/doc/src/widgets-and-layouts/stylesheet.qdoc b/src/widgets/doc/src/widgets-and-layouts/stylesheet.qdoc
index 0f568417..50e51505 100644
--- a/src/widgets/doc/src/widgets-and-layouts/stylesheet.qdoc
+++ b/src/widgets/doc/src/widgets-and-layouts/stylesheet.qdoc
@@ -1342,6 +1342,13 @@
         \li Type
         \li Description
 
+    \row
+        \li \b{\c accent-color}
+        \li \l{#Brush}{Brush} \br
+        \li The property sets the \c Accent, which is used to emphasize
+           interactive UI elements.
+           If this property is not set, it defaults to the \c highlight color.
+
     \row
         \li \b{\c alternate-background-color} \target alternate-background-color-prop
         \li \l{#Brush}{Brush} \br
@@ -3049,6 +3056,7 @@
     \row
         \li \b{PaletteRole} \target PaletteRole
         \li \c alternate-base \br
+              | \c accent \br
               | \c base \br
               | \c bright-text \br
               | \c button \br
diff --git a/src/widgets/graphicsview/qgraphicsitem.cpp b/src/widgets/graphicsview/qgraphicsitem.cpp
index f622670a..cf9e16e2 100644
--- a/src/widgets/graphicsview/qgraphicsitem.cpp
+++ b/src/widgets/graphicsview/qgraphicsitem.cpp
@@ -904,7 +904,6 @@ QGraphicsItemPrivate::QGraphicsItemPrivate()
       scenePosDescendants(false),
       pendingPolish(false),
       mayHaveChildWithGraphicsEffect(false),
-      isDeclarativeItem(false),
       sendParentChangeNotification(false),
       dirtyChildrenBoundingRect(true),
       globalStackingOrder(-1),
@@ -7650,66 +7649,6 @@ void QGraphicsObject::updateMicroFocus()
     QGraphicsItem::updateMicroFocus();
 }
 
-void QGraphicsItemPrivate::children_append(QDeclarativeListProperty<QGraphicsObject> *list, QGraphicsObject *item)
-{
-    if (item) {
-        QGraphicsObject *graphicsObject = static_cast<QGraphicsObject *>(list->object);
-        if (QGraphicsItemPrivate::get(graphicsObject)->sendParentChangeNotification) {
-            item->setParentItem(graphicsObject);
-        } else {
-            QGraphicsItemPrivate::get(item)->setParentItemHelper(graphicsObject, nullptr, nullptr);
-        }
-    }
-}
-
-int QGraphicsItemPrivate::children_count(QDeclarativeListProperty<QGraphicsObject> *list)
-{
-    QGraphicsItemPrivate *d = QGraphicsItemPrivate::get(static_cast<QGraphicsObject *>(list->object));
-    return d->children.size();
-}
-
-QGraphicsObject *QGraphicsItemPrivate::children_at(QDeclarativeListProperty<QGraphicsObject> *list, int index)
-{
-    QGraphicsItemPrivate *d = QGraphicsItemPrivate::get(static_cast<QGraphicsObject *>(list->object));
-    if (index >= 0 && index < d->children.size())
-        return d->children.at(index)->toGraphicsObject();
-    else
-        return nullptr;
-}
-
-void QGraphicsItemPrivate::children_clear(QDeclarativeListProperty<QGraphicsObject> *list)
-{
-    QGraphicsItemPrivate *d = QGraphicsItemPrivate::get(static_cast<QGraphicsObject *>(list->object));
-    int childCount = d->children.size();
-    if (d->sendParentChangeNotification) {
-        for (int index = 0; index < childCount; index++)
-            d->children.at(0)->setParentItem(nullptr);
-    } else {
-        for (int index = 0; index < childCount; index++)
-            QGraphicsItemPrivate::get(d->children.at(0))->setParentItemHelper(nullptr, nullptr, nullptr);
-    }
-}
-
-/*!
-    Returns a list of this item's children.
-
-    The items are sorted by stacking order. This takes into account both the
-    items' insertion order and their Z-values.
-
-*/
-QDeclarativeListProperty<QGraphicsObject> QGraphicsItemPrivate::childrenList()
-{
-    Q_Q(QGraphicsItem);
-    if (isObject) {
-        QGraphicsObject *that = static_cast<QGraphicsObject *>(q);
-        return QDeclarativeListProperty<QGraphicsObject>(that, &children, children_append,
-                                                         children_count, children_at, children_clear);
-    } else {
-        //QGraphicsItem is not supported for this property
-        return QDeclarativeListProperty<QGraphicsObject>();
-    }
-}
-
 /*!
   \internal
   Returns the width of the item
diff --git a/src/widgets/graphicsview/qgraphicsitem.h b/src/widgets/graphicsview/qgraphicsitem.h
index f8257b6b..f82c600b 100644
--- a/src/widgets/graphicsview/qgraphicsitem.h
+++ b/src/widgets/graphicsview/qgraphicsitem.h
@@ -500,13 +500,10 @@ class Q_WIDGETS_EXPORT QGraphicsObject : public QObject, public QGraphicsItem
 #if QT_CONFIG(graphicseffect)
     Q_PROPERTY(QGraphicsEffect *effect READ graphicsEffect WRITE setGraphicsEffect)
 #endif
-    Q_PRIVATE_PROPERTY(QGraphicsItem::d_func(), QDeclarativeListProperty<QGraphicsObject> children
-                       READ childrenList DESIGNABLE false NOTIFY childrenChanged)
     Q_PRIVATE_PROPERTY(QGraphicsItem::d_func(), qreal width READ width WRITE setWidth
                        NOTIFY widthChanged RESET resetWidth FINAL)
     Q_PRIVATE_PROPERTY(QGraphicsItem::d_func(), qreal height READ height WRITE setHeight
                        NOTIFY heightChanged RESET resetHeight FINAL)
-    Q_CLASSINFO("DefaultProperty", "children")
     Q_INTERFACES(QGraphicsItem)
 public:
     explicit QGraphicsObject(QGraphicsItem *parent = nullptr);
diff --git a/src/widgets/graphicsview/qgraphicsitem_p.h b/src/widgets/graphicsview/qgraphicsitem_p.h
index 6b30d266..bf6ebb96 100644
--- a/src/widgets/graphicsview/qgraphicsitem_p.h
+++ b/src/widgets/graphicsview/qgraphicsitem_p.h
@@ -31,63 +31,6 @@ QT_BEGIN_NAMESPACE
 
 class QGraphicsItemPrivate;
 
-#ifndef QDECLARATIVELISTPROPERTY
-#define QDECLARATIVELISTPROPERTY
-template<typename T>
-class QDeclarativeListProperty {
-public:
-    typedef void (*AppendFunction)(QDeclarativeListProperty<T> *, T*);
-    typedef int (*CountFunction)(QDeclarativeListProperty<T> *);
-    typedef T *(*AtFunction)(QDeclarativeListProperty<T> *, int);
-    typedef void (*ClearFunction)(QDeclarativeListProperty<T> *);
-
-    QDeclarativeListProperty()
-        : object(nullptr), data(nullptr), append(nullptr), count(nullptr), at(nullptr), clear(nullptr), dummy1(nullptr), dummy2(nullptr) {}
-    QDeclarativeListProperty(QObject *o, QList<T *> &list)
-        : object(o), data(&list), append(qlist_append), count(qlist_count), at(qlist_at),
-          clear(qlist_clear), dummy1(nullptr), dummy2(nullptr) {}
-    QDeclarativeListProperty(QObject *o, void *d, AppendFunction a, CountFunction c = nullptr, AtFunction t = nullptr,
-                    ClearFunction r = nullptr)
-        : object(o), data(d), append(a), count(c), at(t), clear(r), dummy1(nullptr), dummy2(nullptr) {}
-
-    bool operator==(const QDeclarativeListProperty &o) const {
-        return object == o.object &&
-               data == o.data &&
-               append == o.append &&
-               count == o.count &&
-               at == o.at &&
-               clear == o.clear;
-    }
-
-    QObject *object;
-    void *data;
-
-    AppendFunction append;
-
-    CountFunction count;
-    AtFunction at;
-
-    ClearFunction clear;
-
-    void *dummy1;
-    void *dummy2;
-
-private:
-    static void qlist_append(QDeclarativeListProperty *p, T *v) {
-        ((QList<T *> *)p->data)->append(v);
-    }
-    static int qlist_count(QDeclarativeListProperty *p) {
-        return ((QList<T *> *)p->data)->count();
-    }
-    static T *qlist_at(QDeclarativeListProperty *p, int idx) {
-        return ((QList<T *> *)p->data)->at(idx);
-    }
-    static void qlist_clear(QDeclarativeListProperty *p) {
-        return ((QList<T *> *)p->data)->clear();
-    }
-};
-#endif
-
 class QGraphicsItemCache
 {
 public:
@@ -190,7 +133,6 @@ public:
     void resolveDepth();
     void addChild(QGraphicsItem *child);
     void removeChild(QGraphicsItem *child);
-    QDeclarativeListProperty<QGraphicsObject> childrenList();
     void setParentItemHelper(QGraphicsItem *parent, const QVariant *newParentVariant,
                              const QVariant *thisPointerVariant);
     void childrenBoundingRectHelper(QTransform *x, QRectF *rect, QGraphicsItem *topMostEffectItem);
@@ -378,11 +320,6 @@ public:
     virtual void subFocusItemChange();
     virtual void focusScopeItemChange(bool isSubFocusItem);
 
-    static void children_append(QDeclarativeListProperty<QGraphicsObject> *list, QGraphicsObject *item);
-    static int children_count(QDeclarativeListProperty<QGraphicsObject> *list);
-    static QGraphicsObject *children_at(QDeclarativeListProperty<QGraphicsObject> *list, int);
-    static void children_clear(QDeclarativeListProperty<QGraphicsObject> *list);
-
     inline QTransform transformToParent() const;
     inline void ensureSortedChildren();
     static inline bool insertionOrder(QGraphicsItem *a, QGraphicsItem *b);
@@ -478,10 +415,9 @@ public:
     quint32 scenePosDescendants : 1;
     quint32 pendingPolish : 1;
     quint32 mayHaveChildWithGraphicsEffect : 1;
-    quint32 isDeclarativeItem : 1;
     quint32 sendParentChangeNotification : 1;
     quint32 dirtyChildrenBoundingRect : 1;
-    quint32 padding : 19;
+    quint32 padding : 20;
 
     // Optional stacking order
     int globalStackingOrder;
@@ -588,7 +524,6 @@ public:
         return item->type() == QGraphicsPixmapItem::Type
                && !(item->flags() & QGraphicsItem::ItemIsSelectable)
                && item->d_ptr->children.size() == 0;
-            //|| (item->d_ptr->isObject && qobject_cast<QDeclarativeImage *>(q_func()));
     }
 
     const QStyleOption *styleOption() const override
diff --git a/src/widgets/graphicsview/qgraphicsproxywidget.cpp b/src/widgets/graphicsview/qgraphicsproxywidget.cpp
index 60d62c08..6e9b91a3 100644
--- a/src/widgets/graphicsview/qgraphicsproxywidget.cpp
+++ b/src/widgets/graphicsview/qgraphicsproxywidget.cpp
@@ -522,7 +522,7 @@ QGraphicsProxyWidget::~QGraphicsProxyWidget()
 /*!
     Embeds \a widget into this proxy widget. The embedded widget must reside
     exclusively either inside or outside of Graphics View. You cannot embed a
-    widget as long as it is is visible elsewhere in the UI, at the same time.
+    widget as long as it is visible elsewhere in the UI, at the same time.
 
     \a widget must be a top-level widget whose parent is \nullptr.
 
@@ -1401,7 +1401,7 @@ void QGraphicsProxyWidget::focusOutEvent(QFocusEvent *event)
         if (QWidget *focusWidget = d->widget->focusWidget()) {
             // QTBUG-88016 proxyWidget set QTextEdit(QLineEdit etc.) when input preview text,
             // inputMethod should be reset when proxyWidget lost focus
-            if (focusWidget && focusWidget->testAttribute(Qt::WA_InputMethodEnabled))
+            if (focusWidget->testAttribute(Qt::WA_InputMethodEnabled))
                 QApplication::inputMethod()->reset();
 
             d->removeSubFocusHelper(focusWidget, event->reason());
diff --git a/src/widgets/graphicsview/qgraphicsscene.cpp b/src/widgets/graphicsview/qgraphicsscene.cpp
index dbe6ed9b..587ae2b9 100644
--- a/src/widgets/graphicsview/qgraphicsscene.cpp
+++ b/src/widgets/graphicsview/qgraphicsscene.cpp
@@ -2417,16 +2417,12 @@ void QGraphicsScene::addItem(QGraphicsItem *item)
         return;
     }
 
-    // QDeclarativeItems do not rely on initial itemChanged message, as the componentComplete
-    // function allows far more opportunity for delayed-construction optimization.
-    if (!item->d_ptr->isDeclarativeItem) {
-        if (d->unpolishedItems.isEmpty()) {
-            QMetaMethod method = metaObject()->method(d->polishItemsIndex);
-            method.invoke(this, Qt::QueuedConnection);
-        }
-        d->unpolishedItems.append(item);
-        item->d_ptr->pendingPolish = true;
+    if (d->unpolishedItems.isEmpty()) {
+        QMetaMethod method = metaObject()->method(d->polishItemsIndex);
+        method.invoke(this, Qt::QueuedConnection);
     }
+    d->unpolishedItems.append(item);
+    item->d_ptr->pendingPolish = true;
 
     // Detach this item from its parent if the parent's scene is different
     // from this scene.
@@ -2888,7 +2884,7 @@ void QGraphicsScene::setFocusItem(QGraphicsItem *item, Qt::FocusReason focusReas
 
 /*!
     Returns \c true if the scene has focus; otherwise returns \c false. If the scene
-    has focus, it will will forward key events from QKeyEvent to any item that
+    has focus, it will forward key events from QKeyEvent to any item that
     has focus.
 
     \sa setFocus(), setFocusItem()
diff --git a/src/widgets/itemviews/qabstractitemview.cpp b/src/widgets/itemviews/qabstractitemview.cpp
index 497580ef..c04a699a 100644
--- a/src/widgets/itemviews/qabstractitemview.cpp
+++ b/src/widgets/itemviews/qabstractitemview.cpp
@@ -661,8 +661,8 @@ void QAbstractItemView::setModel(QAbstractItemModel *model)
     if (d->model && d->model != QAbstractItemModelPrivate::staticEmptyModel()) {
         disconnect(d->model, SIGNAL(destroyed()),
                    this, SLOT(_q_modelDestroyed()));
-        disconnect(d->model, SIGNAL(dataChanged(QModelIndex, QModelIndex, QList<int>)), this,
-                   SLOT(dataChanged(QModelIndex, QModelIndex, QList<int>)));
+        disconnect(d->model, SIGNAL(dataChanged(QModelIndex,QModelIndex,QList<int>)), this,
+                   SLOT(dataChanged(QModelIndex,QModelIndex,QList<int>)));
         disconnect(d->model, SIGNAL(headerDataChanged(Qt::Orientation,int,int)),
                    this, SLOT(_q_headerDataChanged()));
         disconnect(d->model, SIGNAL(rowsInserted(QModelIndex,int,int)),
@@ -692,8 +692,8 @@ void QAbstractItemView::setModel(QAbstractItemModel *model)
     if (d->model != QAbstractItemModelPrivate::staticEmptyModel()) {
         connect(d->model, SIGNAL(destroyed()),
                 this, SLOT(_q_modelDestroyed()));
-        connect(d->model, SIGNAL(dataChanged(QModelIndex, QModelIndex, QList<int>)), this,
-                SLOT(dataChanged(QModelIndex, QModelIndex, QList<int>)));
+        connect(d->model, SIGNAL(dataChanged(QModelIndex,QModelIndex,QList<int>)), this,
+                SLOT(dataChanged(QModelIndex,QModelIndex,QList<int>)));
         connect(d->model, SIGNAL(headerDataChanged(Qt::Orientation,int,int)),
                 this, SLOT(_q_headerDataChanged()));
         connect(d->model, SIGNAL(rowsInserted(QModelIndex,int,int)),
diff --git a/src/widgets/itemviews/qdatawidgetmapper.cpp b/src/widgets/itemviews/qdatawidgetmapper.cpp
index 5160d065..547627cd 100644
--- a/src/widgets/itemviews/qdatawidgetmapper.cpp
+++ b/src/widgets/itemviews/qdatawidgetmapper.cpp
@@ -315,8 +315,8 @@ void QDataWidgetMapper::setModel(QAbstractItemModel *model)
         return;
 
     if (d->model) {
-        disconnect(d->model, SIGNAL(dataChanged(QModelIndex, QModelIndex, QList<int>)), this,
-                   SLOT(_q_dataChanged(QModelIndex, QModelIndex, QList<int>)));
+        disconnect(d->model, SIGNAL(dataChanged(QModelIndex,QModelIndex,QList<int>)), this,
+                   SLOT(_q_dataChanged(QModelIndex,QModelIndex,QList<int>)));
         disconnect(d->model, SIGNAL(destroyed()), this,
                    SLOT(_q_modelDestroyed()));
     }
@@ -326,8 +326,8 @@ void QDataWidgetMapper::setModel(QAbstractItemModel *model)
 
     d->model = model;
 
-    connect(model, SIGNAL(dataChanged(QModelIndex, QModelIndex, QList<int>)),
-            SLOT(_q_dataChanged(QModelIndex, QModelIndex, QList<int>)));
+    connect(model, SIGNAL(dataChanged(QModelIndex,QModelIndex,QList<int>)),
+            SLOT(_q_dataChanged(QModelIndex,QModelIndex,QList<int>)));
     connect(model, SIGNAL(destroyed()), SLOT(_q_modelDestroyed()));
 }
 
diff --git a/src/widgets/kernel/qtestsupport_widgets.cpp b/src/widgets/kernel/qtestsupport_widgets.cpp
index 1141fcea..3aa13b24 100644
--- a/src/widgets/kernel/qtestsupport_widgets.cpp
+++ b/src/widgets/kernel/qtestsupport_widgets.cpp
@@ -123,7 +123,7 @@ bool QTouchEventWidgetSequence::commit(bool processEvents)
     bool ret = false;
     if (points.isEmpty())
         return ret;
-    QThread::msleep(1);
+    QThread::sleep(std::chrono::milliseconds{1});
     if (targetWindow) {
         ret = qt_handleTouchEventv2(targetWindow, device, points.values());
     } else if (targetWidget) {
diff --git a/src/widgets/kernel/qwidget.cpp b/src/widgets/kernel/qwidget.cpp
index 83e072a9..6b166778 100644
--- a/src/widgets/kernel/qwidget.cpp
+++ b/src/widgets/kernel/qwidget.cpp
@@ -1328,7 +1328,13 @@ void QWidgetPrivate::create()
     }
 #endif
 
+    // Android doesn't allow to re-use the backing store.
+    // => force creation of a new one.
+#ifdef Q_OS_ANDROID
+    QBackingStore *store = nullptr;
+#else
     QBackingStore *store = q->backingStore();
+#endif
     usesRhiFlush = false;
 
     if (!store) {
@@ -6949,6 +6955,30 @@ bool QWidget::isActiveWindow() const
     return false;
 }
 
+/*!
+    \fn void QWidget::setTabOrder(std::initializer_list<QWidget *> widgets)
+    \overload
+    \since 6.6
+
+    Sets the tab order for the widgets in the \a widgets list by calling
+    \l{QWidget::setTabOrder(QWidget *, QWidget *)} for each consecutive
+    pair of widgets.
+
+    Instead of setting up each pair manually like this:
+
+    \snippet code/src_gui_kernel_qwidget.cpp 9
+
+    you can call:
+
+    \snippet code/src_gui_kernel_qwidget.cpp 9.list
+
+    The call does not create a closed tab focus loop. If there are more widgets
+    with \l{Qt::TabFocus} focus policy, tabbing on \c{d} will move focus to one
+    of those widgets, not back to \c{a}.
+
+    \sa setFocusPolicy(), setFocusProxy(), {Keyboard Focus in Widgets}
+*/
+
 /*!
     Puts the \a second widget after the \a first widget in the focus order.
 
@@ -7061,6 +7091,20 @@ void QWidget::setTabOrder(QWidget* first, QWidget *second)
     }
 }
 
+void QWidget::setTabOrder(std::initializer_list<QWidget *> widgets)
+{
+    QWidget *prev = nullptr;
+    for (const auto &widget : widgets) {
+        if (!prev) {
+            prev = widget;
+        } else {
+            QWidget::setTabOrder(prev, widget);
+            prev = widget;
+        }
+    }
+}
+
+
 /*!\internal
 
   Moves the relevant subwidgets of this widget from the \a oldtlw's
@@ -9356,6 +9400,8 @@ bool QWidget::event(QEvent *event)
             const QWindow *win = te->window;
             d->setWinId((win && win->handle()) ? win->handle()->winId() : 0);
         }
+        break;
+    case QEvent::DevicePixelRatioChange:
         if (d->data.fnt.d->dpi != logicalDpiY())
             d->updateFont(d->data.fnt);
         d->renderToTextureReallyDirty = 1;
@@ -10630,7 +10676,7 @@ void QWidget::setParent(QWidget *parent)
     setParent((QWidget*)parent, windowFlags() & ~Qt::WindowType_Mask);
 }
 
-static void sendWindowChangeToTextureChildrenRecursively(QWidget *widget, QEvent::Type eventType)
+void qSendWindowChangeToTextureChildrenRecursively(QWidget *widget, QEvent::Type eventType)
 {
     QWidgetPrivate *d = QWidgetPrivate::get(widget);
     if (d->renderToTexture) {
@@ -10641,7 +10687,7 @@ static void sendWindowChangeToTextureChildrenRecursively(QWidget *widget, QEvent
     for (int i = 0; i < d->children.size(); ++i) {
         QWidget *w = qobject_cast<QWidget *>(d->children.at(i));
         if (w && !w->isWindow() && QWidgetPrivate::get(w)->textureChildSeen)
-            sendWindowChangeToTextureChildrenRecursively(w, eventType);
+            qSendWindowChangeToTextureChildrenRecursively(w, eventType);
     }
 }
 
@@ -10703,7 +10749,7 @@ void QWidget::setParent(QWidget *parent, Qt::WindowFlags f)
     // texture-based widgets need a pre-notification when their associated top-level window changes
     // This is not under the wasCreated/newParent conditions above in order to also play nice with QDockWidget.
     if (d->textureChildSeen && ((!parent && parentWidget()) || (parent && parent->window() != oldtlw)))
-        sendWindowChangeToTextureChildrenRecursively(this, QEvent::WindowAboutToChangeInternal);
+        qSendWindowChangeToTextureChildrenRecursively(this, QEvent::WindowAboutToChangeInternal);
 
     // If we get parented into another window, children will be folded
     // into the new parent's focus chain, so clear focus now.
@@ -10784,7 +10830,7 @@ void QWidget::setParent(QWidget *parent, Qt::WindowFlags f)
     // texture-based widgets need another event when their top-level window
     // changes (more precisely, has already changed at this point)
     if (d->textureChildSeen && oldtlw != window())
-        sendWindowChangeToTextureChildrenRecursively(this, QEvent::WindowChangeInternal);
+        qSendWindowChangeToTextureChildrenRecursively(this, QEvent::WindowChangeInternal);
 
     if (!wasCreated) {
         if (isWindow() || parentWidget()->isVisible())
diff --git a/src/widgets/kernel/qwidget.h b/src/widgets/kernel/qwidget.h
index d2b20c6e..e5e83a43 100644
--- a/src/widgets/kernel/qwidget.h
+++ b/src/widgets/kernel/qwidget.h
@@ -432,6 +432,7 @@ public:
     void setFocusPolicy(Qt::FocusPolicy policy);
     bool hasFocus() const;
     static void setTabOrder(QWidget *, QWidget *);
+    static void setTabOrder(std::initializer_list<QWidget *> widgets);
     void setFocusProxy(QWidget *);
     QWidget *focusProxy() const;
     Qt::ContextMenuPolicy contextMenuPolicy() const;
@@ -913,7 +914,6 @@ inline bool QWidget::testAttribute(Qt::WidgetAttribute attribute) const
     return testAttribute_helper(attribute);
 }
 
-
 #define QWIDGETSIZE_MAX ((1<<24)-1)
 
 #ifndef QT_NO_DEBUG_STREAM
diff --git a/src/widgets/kernel/qwidget_p.h b/src/widgets/kernel/qwidget_p.h
index cf0618bc..07153e71 100644
--- a/src/widgets/kernel/qwidget_p.h
+++ b/src/widgets/kernel/qwidget_p.h
@@ -65,6 +65,7 @@ class QUnifiedToolbarSurface;
 
 // implemented in qshortcut.cpp
 bool qWidgetShortcutContextMatcher(QObject *object, Qt::ShortcutContext context);
+void qSendWindowChangeToTextureChildrenRecursively(QWidget *widget, QEvent::Type eventType);
 
 class QUpdateLaterEvent : public QEvent
 {
diff --git a/src/widgets/kernel/qwidgetrepaintmanager.cpp b/src/widgets/kernel/qwidgetrepaintmanager.cpp
index 1a0fda85..3cc043ca 100644
--- a/src/widgets/kernel/qwidgetrepaintmanager.cpp
+++ b/src/widgets/kernel/qwidgetrepaintmanager.cpp
@@ -1087,7 +1087,11 @@ void QWidgetRepaintManager::flush(QWidget *widget, const QRegion &region, QPlatf
                                                 translucentBackground);
         widgetWindowPrivate->sendComposeStatus(widget->window(), true);
         if (flushResult == QPlatformBackingStore::FlushFailedDueToLostDevice) {
+            qSendWindowChangeToTextureChildrenRecursively(widget->window(),
+                                                          QEvent::WindowAboutToChangeInternal);
             store->handle()->graphicsDeviceReportedLost();
+            qSendWindowChangeToTextureChildrenRecursively(widget->window(),
+                                                          QEvent::WindowChangeInternal);
             widget->update();
         }
     } else {
diff --git a/src/widgets/kernel/qwidgetwindow.cpp b/src/widgets/kernel/qwidgetwindow.cpp
index 76c77e6e..77568933 100644
--- a/src/widgets/kernel/qwidgetwindow.cpp
+++ b/src/widgets/kernel/qwidgetwindow.cpp
@@ -329,6 +329,10 @@ bool QWidgetWindow::event(QEvent *event)
         m_widget->repaint();
         return true;
 
+    case QEvent::DevicePixelRatioChange:
+        handleDevicePixelRatioChange();
+        break;
+
     default:
         break;
     }
@@ -695,22 +699,32 @@ void QWidgetWindow::updateMargins()
     m_widget->data->fstrut_dirty = false;
 }
 
-static void sendScreenChangeRecursively(QWidget *widget)
+static void sendChangeRecursively(QWidget *widget, QEvent::Type type)
 {
-    QEvent e(QEvent::ScreenChangeInternal);
+    QEvent e(type);
     QCoreApplication::sendEvent(widget, &e);
     QWidgetPrivate *d = QWidgetPrivate::get(widget);
     for (int i = 0; i < d->children.size(); ++i) {
         QWidget *w = qobject_cast<QWidget *>(d->children.at(i));
         if (w)
-            sendScreenChangeRecursively(w);
+            sendChangeRecursively(w, type);
     }
 }
 
 void QWidgetWindow::handleScreenChange()
 {
     // Send an event recursively to the widget and its children.
-    sendScreenChangeRecursively(m_widget);
+    sendChangeRecursively(m_widget, QEvent::ScreenChangeInternal);
+
+    // Invalidate the backing store buffer and repaint immediately.
+    if (screen())
+        repaintWindow();
+}
+
+void QWidgetWindow::handleDevicePixelRatioChange()
+{
+    // Send an event recursively to the widget and its children.
+    sendChangeRecursively(m_widget, QEvent::DevicePixelRatioChange);
 
     // Invalidate the backing store buffer and repaint immediately.
     if (screen())
diff --git a/src/widgets/kernel/qwidgetwindow_p.h b/src/widgets/kernel/qwidgetwindow_p.h
index 92f1a8b6..0eee3cd9 100644
--- a/src/widgets/kernel/qwidgetwindow_p.h
+++ b/src/widgets/kernel/qwidgetwindow_p.h
@@ -81,9 +81,10 @@ protected:
 
 private slots:
     void updateObjectName();
-    void handleScreenChange();
 
 private:
+    void handleScreenChange();
+    void handleDevicePixelRatioChange();
     void repaintWindow();
     bool updateSize();
     void updateMargins();
diff --git a/src/widgets/styles/qcommonstyle.cpp b/src/widgets/styles/qcommonstyle.cpp
index 8494c8db..b247cf6f 100644
--- a/src/widgets/styles/qcommonstyle.cpp
+++ b/src/widgets/styles/qcommonstyle.cpp
@@ -736,11 +736,10 @@ void QCommonStyle::drawPrimitive(PrimitiveElement pe, const QStyleOption *opt, Q
             QRect r = opt->rect;
             int size = qMin(r.height(), r.width());
             QPixmap pixmap;
-            QString pixmapName =
-                    QStyleHelper::uniqueName("$qt_ia-"_L1
-                                                     % QLatin1StringView(metaObject()->className()),
-                                             opt, QSize(size, size))
-                    % HexString<uint>(pe);
+            const QString pixmapName = QStyleHelper::uniqueName("$qt_ia-"_L1
+                                                     % QLatin1StringView(metaObject()->className())
+                                                     % HexString<uint>(pe),
+                                             opt, QSize(size, size));
             if (!QPixmapCache::find(pixmapName, &pixmap)) {
                 qreal pixelRatio = p->device()->devicePixelRatio();
                 int border = qRound(pixelRatio*(size/5));
@@ -2009,7 +2008,10 @@ void QCommonStyle::drawControl(ControlElement element, const QStyleOption *opt,
             }
             QRect iconRect;
             d->tabLayout(tab, widget, &tr, &iconRect);
-            tr = proxy()->subElementRect(SE_TabBarTabText, opt, widget); //we compute tr twice because the style may override subElementRect
+
+            // compute tr again, unless tab is moving, because the style may override subElementRect
+            if (tab->position != QStyleOptionTab::TabPosition::Moving)
+                tr = proxy()->subElementRect(SE_TabBarTabText, opt, widget);
 
             if (!tab->icon.isNull()) {
                 QPixmap tabIcon = tab->icon.pixmap(tab->iconSize, p->device()->devicePixelRatio(),
@@ -5196,9 +5198,12 @@ int QCommonStyle::styleHint(StyleHint sh, const QStyleOption *opt, const QWidget
         ret = 1;
         break;
 
-    case SH_UnderlineShortcut:
-        ret = 1;
+    case SH_UnderlineShortcut: {
+        const QPlatformTheme *theme = QGuiApplicationPrivate::platformTheme();
+        ret = theme ? theme->themeHint(QPlatformTheme::UnderlineShortcut).toInt()
+                    : QPlatformTheme::defaultThemeHint(QPlatformTheme::UnderlineShortcut).toInt();
         break;
+    }
 
     case SH_SpinBox_ClickAutoRepeatRate:
         ret = 150;
diff --git a/src/widgets/styles/qfusionstyle.cpp b/src/widgets/styles/qfusionstyle.cpp
index 918f9dbe..01c59195 100644
--- a/src/widgets/styles/qfusionstyle.cpp
+++ b/src/widgets/styles/qfusionstyle.cpp
@@ -1236,12 +1236,12 @@ void QFusionStyle::drawControl(ControlElement element, const QStyleOption *optio
         // Draws the header in tables.
         if (const QStyleOptionHeader *header = qstyleoption_cast<const QStyleOptionHeader *>(option)) {
             const QStyleOptionHeaderV2 *headerV2 = qstyleoption_cast<const QStyleOptionHeaderV2 *>(option);
-            QString pixmapName = QStyleHelper::uniqueName("headersection"_L1, option, option->rect.size());
-            pixmapName += QString::number(- int(header->position));
-            pixmapName += QString::number(- int(header->orientation));
-            if (headerV2)
-                pixmapName += QString::number(- int(headerV2->isSectionDragTarget));
-
+            const bool isSectionDragTarget = headerV2 ? headerV2->isSectionDragTarget : false;
+            const QString pixmapName = QStyleHelper::uniqueName("headersection-"_L1
+                                                                    % HexString(header->position)
+                                                                    % HexString(header->orientation)
+                                                                    % QLatin1Char(isSectionDragTarget ? '1' : '0'),
+                                                                option, option->rect.size());
             QPixmap cache;
             if (!QPixmapCache::find(pixmapName, &cache)) {
                 cache = styleCachePixmap(rect.size());
@@ -1251,7 +1251,7 @@ void QFusionStyle::drawControl(ControlElement element, const QStyleOption *optio
                 QColor buttonColor = d->buttonColor(option->palette);
                 QColor gradientStartColor = buttonColor.lighter(104);
                 QColor gradientStopColor = buttonColor.darker(102);
-                if (headerV2 && headerV2->isSectionDragTarget) {
+                if (isSectionDragTarget) {
                     gradientStopColor = gradientStartColor.darker(130);
                     gradientStartColor = gradientStartColor.darker(130);
                 }
@@ -2665,16 +2665,12 @@ void QFusionStyle::drawComplexControl(ComplexControl control, const QStyleOption
             bool sunken = comboBox->state & State_On; // play dead, if combobox has no items
             bool isEnabled = (comboBox->state & State_Enabled);
             QPixmap cache;
-            QString pixmapName = QStyleHelper::uniqueName("combobox"_L1, option, comboBox->rect.size());
-            if (sunken)
-                pixmapName += "-sunken"_L1;
-            if (comboBox->editable)
-                pixmapName += "-editable"_L1;
-            if (isEnabled)
-                pixmapName += "-enabled"_L1;
-            if (!comboBox->frame)
-                pixmapName += "-frameless"_L1;
-
+            const QString pixmapName = QStyleHelper::uniqueName("combobox"_L1
+                                                                    % QLatin1StringView(sunken ? "-sunken" : "")
+                                                                    % QLatin1StringView(comboBox->editable ? "-editable" : "")
+                                                                    % QLatin1StringView(isEnabled ? "-enabled" : "")
+                                                                    % QLatin1StringView(!comboBox->frame ? "-frameless" : ""),
+                                                                option, comboBox->rect.size());
             if (!QPixmapCache::find(pixmapName, &cache)) {
                 cache = styleCachePixmap(comboBox->rect.size());
                 cache.fill(Qt::transparent);
@@ -2817,7 +2813,8 @@ void QFusionStyle::drawComplexControl(ComplexControl control, const QStyleOption
 
                 // draw blue groove highlight
                 QRect clipRect;
-                groovePixmapName += "_blue"_L1;
+                if (!groovePixmapName.isEmpty())
+                    groovePixmapName += "_blue"_L1;
                 if (!QPixmapCache::find(groovePixmapName, &cache)) {
                     cache = styleCachePixmap(pixmapRect.size());
                     cache.fill(Qt::transparent);
diff --git a/src/widgets/styles/qstyle_p.h b/src/widgets/styles/qstyle_p.h
index 5c1fd171..c4daa09c 100644
--- a/src/widgets/styles/qstyle_p.h
+++ b/src/widgets/styles/qstyle_p.h
@@ -60,9 +60,9 @@ inline QPixmap styleCachePixmap(const QSize &size)
     QPixmap internalPixmapCache; \
     QImage imageCache; \
     QPainter *p = painter; \
-    QString unique = QStyleHelper::uniqueName((a), option, option->rect.size()); \
+    const QString unique = QStyleHelper::uniqueName((a), option, option->rect.size()); \
     int txType = painter->deviceTransform().type() | painter->worldTransform().type(); \
-    bool doPixmapCache = (!option->rect.isEmpty()) \
+    const bool doPixmapCache = (!option->rect.isEmpty()) \
             && ((txType <= QTransform::TxTranslate) || (painter->deviceTransform().type() == QTransform::TxScale)); \
     if (doPixmapCache && QPixmapCache::find(unique, &internalPixmapCache)) { \
         painter->drawPixmap(option->rect.topLeft(), internalPixmapCache); \
diff --git a/src/widgets/styles/qstylehelper.cpp b/src/widgets/styles/qstylehelper.cpp
index f79e83be..1084761d 100644
--- a/src/widgets/styles/qstylehelper.cpp
+++ b/src/widgets/styles/qstylehelper.cpp
@@ -25,8 +25,18 @@ Q_GUI_EXPORT int qt_defaultDpiX();
 
 namespace QStyleHelper {
 
+static inline bool usePixmapCache(const QStyleOption *opt)
+{
+    if (QWidget *widget = qobject_cast<QWidget *>(opt->styleObject))
+        return !widget->testAttribute(Qt::WA_StyleSheetTarget);
+    return true;
+}
+
 QString uniqueName(const QString &key, const QStyleOption *option, const QSize &size)
 {
+    if (!usePixmapCache(option))
+        return {};
+
     const QStyleOptionComplex *complexOption = qstyleoption_cast<const QStyleOptionComplex *>(option);
     QString tmp = key % HexString<uint>(option->state)
                       % HexString<uint>(option->direction)
diff --git a/src/widgets/styles/qstyleoption.cpp b/src/widgets/styles/qstyleoption.cpp
index 55fde53c..23179de4 100644
--- a/src/widgets/styles/qstyleoption.cpp
+++ b/src/widgets/styles/qstyleoption.cpp
@@ -1290,6 +1290,7 @@ QStyleOptionTab::QStyleOptionTab(int version)
     \value Middle The tab is neither the first nor the last tab in the tab bar.
     \value End The tab is the last tab in the tab bar.
     \value OnlyOneTab The tab is both the first and the last tab in the tab bar.
+    \value [since 6.6] Moving The tab is moving by mouse drag or animation.
 
     \sa position
 */
diff --git a/src/widgets/styles/qstyleoption.h b/src/widgets/styles/qstyleoption.h
index 6841a81b..0e0118f6 100644
--- a/src/widgets/styles/qstyleoption.h
+++ b/src/widgets/styles/qstyleoption.h
@@ -244,7 +244,7 @@ public:
     enum StyleOptionType { Type = SO_Tab };
     enum StyleOptionVersion { Version = 1 };
 
-    enum TabPosition { Beginning, Middle, End, OnlyOneTab };
+    enum TabPosition { Beginning, Middle, End, OnlyOneTab, Moving };
     enum SelectedPosition { NotAdjacent, NextIsSelected, PreviousIsSelected };
     enum CornerWidget { NoCornerWidgets = 0x00, LeftCornerWidget = 0x01,
                         RightCornerWidget = 0x02 };
diff --git a/src/widgets/styles/qstylesheetstyle.cpp b/src/widgets/styles/qstylesheetstyle.cpp
index 51146972..e3ca85d2 100644
--- a/src/widgets/styles/qstylesheetstyle.cpp
+++ b/src/widgets/styles/qstylesheetstyle.cpp
@@ -434,16 +434,26 @@ struct QStyleSheetBoxData : public QSharedData
 
 struct QStyleSheetPaletteData : public QSharedData
 {
-    QStyleSheetPaletteData(const QBrush &fg, const QBrush &sfg, const QBrush &sbg,
-                           const QBrush &abg, const QBrush &pfg)
-        : foreground(fg), selectionForeground(sfg), selectionBackground(sbg),
-          alternateBackground(abg), placeholderForeground(pfg) { }
+     QStyleSheetPaletteData(const QBrush &foreground,
+                            const QBrush &selectedForeground,
+                            const QBrush &selectedBackground,
+                            const QBrush &alternateBackground,
+                            const QBrush &placeHolderTextForeground,
+                            const QBrush &accent)
+        : foreground(foreground)
+        , selectionForeground(selectedForeground)
+        , selectionBackground(selectedBackground)
+        , alternateBackground(alternateBackground)
+        , placeholderForeground(placeHolderTextForeground)
+        , accent(accent)
+     { }
 
     QBrush foreground;
     QBrush selectionForeground;
     QBrush selectionBackground;
     QBrush alternateBackground;
     QBrush placeholderForeground;
+    QBrush accent;
 };
 
 struct QStyleSheetGeometryData : public QSharedData
@@ -955,10 +965,17 @@ QRenderRule::QRenderRule(const QList<Declaration> &declarations, const QObject *
         bg = new QStyleSheetBackgroundData(brush, pixmap, repeat, alignment, origin, attachment, clip);
     }
 
-    QBrush sfg, fg, pfg;
-    QBrush sbg, abg;
-    if (v.extractPalette(&fg, &sfg, &sbg, &abg, &pfg))
-        pal = new QStyleSheetPaletteData(fg, sfg, sbg, abg, pfg);
+    QBrush foreground;
+    QBrush selectedForeground;
+    QBrush selectedBackground;
+    QBrush alternateBackground;
+    QBrush placeHolderTextForeground;
+    QBrush accent;
+    if (v.extractPalette(&foreground, &selectedForeground, &selectedBackground,
+                         &alternateBackground, &placeHolderTextForeground, &accent)) {
+        pal = new QStyleSheetPaletteData(foreground, selectedForeground, selectedBackground,
+                                         alternateBackground, placeHolderTextForeground, accent);
+    }
 
     QIcon imgIcon;
     alignment = Qt::AlignCenter;
@@ -1497,6 +1514,8 @@ void QRenderRule::configurePalette(QPalette *p, QPalette::ColorGroup cg, const Q
         p->setBrush(cg, QPalette::AlternateBase, pal->alternateBackground);
     if (pal->placeholderForeground.style() != Qt::NoBrush)
         p->setBrush(cg, QPalette::PlaceholderText, pal->placeholderForeground);
+    if (pal->accent.style() != Qt::NoBrush)
+        p->setBrush(cg, QPalette::Accent, pal->accent);
 }
 
 bool QRenderRule::hasModification() const
diff --git a/src/widgets/styles/qwindowsstyle.cpp b/src/widgets/styles/qwindowsstyle.cpp
index e48e17ed..fd1f8e1c 100644
--- a/src/widgets/styles/qwindowsstyle.cpp
+++ b/src/widgets/styles/qwindowsstyle.cpp
@@ -265,12 +265,13 @@ int QWindowsStylePrivate::pixelMetricFromSystemDp(QStyle::PixelMetric pm, const
     case QStyle::PM_DockWidgetFrameWidth:
         return GetSystemMetrics(SM_CXFRAME);
 
-    case QStyle::PM_TitleBarHeight:
-        if (widget && (widget->windowType() == Qt::Tool)) {
-            // MS always use one less than they say
-            return GetSystemMetrics(SM_CYSMCAPTION) - 1;
-        }
-        return GetSystemMetrics(SM_CYCAPTION) - 1;
+    case QStyle::PM_TitleBarHeight: {
+        const int resizeBorderThickness =
+            GetSystemMetrics(SM_CXSIZEFRAME) + GetSystemMetrics(SM_CXPADDEDBORDER);
+        if (widget && (widget->windowType() == Qt::Tool))
+            return GetSystemMetrics(SM_CYSMCAPTION) + resizeBorderThickness;
+        return GetSystemMetrics(SM_CYCAPTION) + resizeBorderThickness;
+    }
 
     case QStyle::PM_ScrollBarExtent:
         {
@@ -358,18 +359,15 @@ static QScreen *screenOf(const QWidget *w)
 // and account for secondary screens with differing logical DPI.
 qreal QWindowsStylePrivate::nativeMetricScaleFactor(const QWidget *widget)
 {
-    const QPlatformScreen *screen = screenOf(widget)->handle();
-    const qreal scale = screen ? (screen->logicalDpi().first / screen->logicalBaseDpi().first)
-                               : QWindowsStylePrivate::appDevicePixelRatio();
+    qreal scale = QHighDpiScaling::factor(screenOf(widget));
     qreal result = qreal(1) / scale;
     if (QGuiApplicationPrivate::screen_list.size() > 1) {
         const QScreen *primaryScreen = QGuiApplication::primaryScreen();
         const QScreen *screen = screenOf(widget);
         if (screen != primaryScreen) {
-            const qreal primaryLogicalDpi = primaryScreen->handle()->logicalDpi().first;
-            const qreal logicalDpi = screen->handle()->logicalDpi().first;
-            if (!qFuzzyCompare(primaryLogicalDpi, logicalDpi))
-                result *= logicalDpi / primaryLogicalDpi;
+            qreal primaryScale = QHighDpiScaling::factor(primaryScreen);
+            if (!qFuzzyCompare(scale, primaryScale))
+                result *= scale / primaryScale;
         }
     }
     return result;
diff --git a/src/widgets/widgets/qbuttongroup.cpp b/src/widgets/widgets/qbuttongroup.cpp
index 3a992fed..079ef45e 100644
--- a/src/widgets/widgets/qbuttongroup.cpp
+++ b/src/widgets/widgets/qbuttongroup.cpp
@@ -57,8 +57,8 @@ void QButtonGroupPrivate::detectCheckedButton()
     In addition, QButtonGroup can map between integers and buttons.
     You can assign an integer id to a button with setId(), and
     retrieve it with id(). The id of the currently checked button is
-    available with checkedId(), and there is an overloaded signal
-    buttonClicked() which emits the id of the button. The id \c {-1}
+    available with checkedId(), and there is a signal
+    idClicked() that emits the id of the button. The id \c {-1}
     is reserved by QButtonGroup to mean "no such button". The purpose
     of the mapping mechanism is to simplify the representation of enum
     values in a user interface.
diff --git a/src/widgets/widgets/qcalendarwidget.cpp b/src/widgets/widgets/qcalendarwidget.cpp
index 02943493..660d161f 100644
--- a/src/widgets/widgets/qcalendarwidget.cpp
+++ b/src/widgets/widgets/qcalendarwidget.cpp
@@ -2492,13 +2492,14 @@ void QCalendarWidget::showToday()
     \snippet code/src_gui_widgets_qcalendarwidget.cpp 1
     \endtable
 
-    The default minimum date is November 25, 4714 BCE.
-
     When setting a minimum date, the maximumDate and selectedDate
     properties are adjusted if the selection range becomes invalid. If
     the provided date is not a valid QDate object, the
     setMinimumDate() function does nothing.
 
+    The default minimum date is November 25, 4714 BCE.
+    You can restore this default by calling clearMinimumDate() (since Qt 6.6).
+
     \sa setDateRange()
 */
 
@@ -2527,6 +2528,11 @@ void QCalendarWidget::setMinimumDate(QDate date)
     }
 }
 
+void QCalendarWidget::clearMinimumDate()
+{
+    setMinimumDate(QDate::fromJulianDay(1));
+}
+
 /*!
     \property QCalendarWidget::maximumDate
     \brief the maximum date of the currently specified date range.
@@ -2542,13 +2548,14 @@ void QCalendarWidget::setMinimumDate(QDate date)
     \snippet code/src_gui_widgets_qcalendarwidget.cpp 2
     \endtable
 
-    The default maximum date is December 31, 9999 CE.
-
     When setting a maximum date, the minimumDate and selectedDate
     properties are adjusted if the selection range becomes invalid. If
     the provided date is not a valid QDate object, the
     setMaximumDate() function does nothing.
 
+    The default maximum date is December 31, 9999 CE.
+    You can restore this default by calling clearMaximumDate() (since Qt 6.6).
+
     \sa setDateRange()
 */
 
@@ -2577,6 +2584,11 @@ void QCalendarWidget::setMaximumDate(QDate date)
     }
 }
 
+void QCalendarWidget::clearMaximumDate()
+{
+    setMaximumDate(QDate(9999, 12, 31));
+}
+
 /*!
     Defines a date range by setting the minimumDate and maximumDate
     properties.
@@ -2861,7 +2873,7 @@ QMap<QDate, QTextCharFormat> QCalendarWidget::dateTextFormat() const
 }
 
 /*!
-    Returns a QTextCharFormat for \a date. The char format can be be
+    Returns a QTextCharFormat for \a date. The char format can be
     empty if the date is not renderd specially.
 */
 QTextCharFormat QCalendarWidget::dateTextFormat(QDate date) const
diff --git a/src/widgets/widgets/qcalendarwidget.h b/src/widgets/widgets/qcalendarwidget.h
index c7b28540..034c95dd 100644
--- a/src/widgets/widgets/qcalendarwidget.h
+++ b/src/widgets/widgets/qcalendarwidget.h
@@ -21,8 +21,8 @@ class Q_WIDGETS_EXPORT QCalendarWidget : public QWidget
     Q_OBJECT
     Q_ENUMS(Qt::DayOfWeek)
     Q_PROPERTY(QDate selectedDate READ selectedDate WRITE setSelectedDate)
-    Q_PROPERTY(QDate minimumDate READ minimumDate WRITE setMinimumDate)
-    Q_PROPERTY(QDate maximumDate READ maximumDate WRITE setMaximumDate)
+    Q_PROPERTY(QDate minimumDate READ minimumDate WRITE setMinimumDate RESET clearMinimumDate)
+    Q_PROPERTY(QDate maximumDate READ maximumDate WRITE setMaximumDate RESET clearMaximumDate)
     Q_PROPERTY(Qt::DayOfWeek firstDayOfWeek READ firstDayOfWeek WRITE setFirstDayOfWeek)
     Q_PROPERTY(bool gridVisible READ isGridVisible WRITE setGridVisible)
     Q_PROPERTY(SelectionMode selectionMode READ selectionMode WRITE setSelectionMode)
@@ -68,9 +68,11 @@ public:
 
     QDate minimumDate() const;
     void setMinimumDate(QDate date);
+    void clearMinimumDate();
 
     QDate maximumDate() const;
     void setMaximumDate(QDate date);
+    void clearMaximumDate();
 
     Qt::DayOfWeek firstDayOfWeek() const;
     void setFirstDayOfWeek(Qt::DayOfWeek dayOfWeek);
diff --git a/src/widgets/widgets/qcheckbox.cpp b/src/widgets/widgets/qcheckbox.cpp
index 3679bc6a..5b44271d 100644
--- a/src/widgets/widgets/qcheckbox.cpp
+++ b/src/widgets/widgets/qcheckbox.cpp
@@ -28,7 +28,7 @@ public:
     uint tristate : 1;
     uint noChange : 1;
     uint hovering : 1;
-    uint publishedState : 2;
+    Qt::CheckState publishedState : 2;
 
     void init();
 };
@@ -225,7 +225,7 @@ void QCheckBox::setCheckState(Qt::CheckState state)
     setChecked(state != Qt::Unchecked);
     d->blockRefresh = false;
     d->refresh();
-    if ((uint)state != d->publishedState) {
+    if (state != d->publishedState) {
         d->publishedState = state;
         emit stateChanged(state);
     }
@@ -320,7 +320,7 @@ void QCheckBox::checkStateSet()
     Q_D(QCheckBox);
     d->noChange = false;
     Qt::CheckState state = checkState();
-    if ((uint)state != d->publishedState) {
+    if (state != d->publishedState) {
         d->publishedState = state;
         emit stateChanged(state);
     }
diff --git a/src/widgets/widgets/qcheckbox.h b/src/widgets/widgets/qcheckbox.h
index ab240b55..e385dadb 100644
--- a/src/widgets/widgets/qcheckbox.h
+++ b/src/widgets/widgets/qcheckbox.h
@@ -36,7 +36,11 @@ public:
     void setCheckState(Qt::CheckState state);
 
 Q_SIGNALS:
+#if QT_VERSION < QT_VERSION_CHECK(7, 0, 0)
     void stateChanged(int);
+#else
+    void stateChanged(Qt::CheckState);
+#endif
 
 protected:
     bool event(QEvent *e) override;
diff --git a/src/widgets/widgets/qcombobox.cpp b/src/widgets/widgets/qcombobox.cpp
index dd41863f..67c74526 100644
--- a/src/widgets/widgets/qcombobox.cpp
+++ b/src/widgets/widgets/qcombobox.cpp
@@ -904,8 +904,11 @@ QStyleOptionComboBox QComboBoxPrivateContainer::comboStyleOption() const
     \fn void QComboBox::currentTextChanged(const QString &text)
     \since 5.0
 
-    This signal is sent whenever currentText changes. The new value
-    is passed as \a text.
+    This signal is emitted whenever currentText changes.
+    The new value is passed as \a text.
+
+    \note It is not emitted, if currentText remains the same,
+    even if currentIndex changes.
 */
 
 /*!
@@ -1071,7 +1074,7 @@ void QComboBoxPrivate::_q_dataChanged(const QModelIndex &topLeft, const QModelIn
             lineEdit->setText(text);
             updateLineEditGeometry();
         } else {
-            emit q->currentTextChanged(text);
+            updateCurrentText(text);
         }
         q->update();
 #if QT_CONFIG(accessibility)
@@ -1382,7 +1385,7 @@ void QComboBoxPrivate::_q_emitCurrentIndexChanged(const QModelIndex &index)
     emit q->currentIndexChanged(index.row());
     // signal lineEdit.textChanged already connected to signal currentTextChanged, so don't emit double here
     if (!lineEdit)
-        emit q->currentTextChanged(text);
+        updateCurrentText(text);
 #if QT_CONFIG(accessibility)
     QAccessibleValueChangeEvent event(q, text);
     QAccessible::updateAccessibility(&event);
@@ -2858,6 +2861,15 @@ void QComboBoxPrivate::doHidePopup()
     _q_resetButton();
 }
 
+void QComboBoxPrivate::updateCurrentText(const QString &text)
+{
+    if (text == currentText)
+        return;
+
+    currentText = text;
+    emit q_func()->currentTextChanged(text);
+}
+
 /*!
     Clears the combobox, removing all items.
 
diff --git a/src/widgets/widgets/qcombobox_p.h b/src/widgets/widgets/qcombobox_p.h
index 18fcc071..6853e90e 100644
--- a/src/widgets/widgets/qcombobox_p.h
+++ b/src/widgets/widgets/qcombobox_p.h
@@ -357,6 +357,7 @@ public:
     void updateFocusPolicy();
     void showPopupFromMouseEvent(QMouseEvent *e);
     void doHidePopup();
+    void updateCurrentText(const QString &text);
 
 #ifdef Q_OS_MAC
     void cleanupNativePopup();
@@ -382,6 +383,7 @@ public:
     QPersistentModelIndex currentIndex;
     QPersistentModelIndex root;
     QString placeholderText;
+    QString currentText;
     QRect hoverRect;
     QSize iconSize;
     mutable QSize minimumSizeHint;
diff --git a/src/widgets/widgets/qdockwidget.cpp b/src/widgets/widgets/qdockwidget.cpp
index 1a672aff..fe0feeed 100644
--- a/src/widgets/widgets/qdockwidget.cpp
+++ b/src/widgets/widgets/qdockwidget.cpp
@@ -119,7 +119,7 @@ bool QDockWidgetTitleButton::event(QEvent *event)
 {
     switch (event->type()) {
     case QEvent::StyleChange:
-    case QEvent::ScreenChangeInternal:
+    case QEvent::DevicePixelRatioChange:
         m_iconSize = -1;
         break;
     default:
@@ -253,7 +253,9 @@ bool QDockWidgetLayout::wmSupportsNativeWindowDeco()
     return false;
 #else
     static const bool xcb = !QGuiApplication::platformName().compare("xcb"_L1, Qt::CaseInsensitive);
-    return !xcb;
+    static const bool wayland =
+            QGuiApplication::platformName().startsWith("wayland"_L1, Qt::CaseInsensitive);
+    return !(xcb || wayland);
 #endif
 }
 
@@ -778,6 +780,8 @@ void QDockWidgetPrivate::startDrag(bool group)
     QMainWindowLayout *layout = qt_mainwindow_layout_from_dock(q);
     Q_ASSERT(layout != nullptr);
 
+    bool wasFloating = q->isFloating();
+
     state->widgetItem = layout->unplug(q, group);
     if (state->widgetItem == nullptr) {
         /*  Dock widget has a QMainWindow parent, but was never inserted with
@@ -796,6 +800,20 @@ void QDockWidgetPrivate::startDrag(bool group)
         layout->restore();
 
     state->dragging = true;
+
+#if QT_CONFIG(draganddrop)
+    if (QMainWindowLayout::needsPlatformDrag()) {
+        Qt::DropAction result =
+                layout->performPlatformWidgetDrag(state->widgetItem, state->pressPos);
+        if (result == Qt::IgnoreAction && !wasFloating) {
+            layout->revert(state->widgetItem);
+            delete state;
+            state = nullptr;
+        } else {
+            endDrag();
+        }
+    }
+#endif
 }
 
 /*! \internal
@@ -1038,6 +1056,10 @@ bool QDockWidgetPrivate::mouseMoveEvent(QMouseEvent *event)
 bool QDockWidgetPrivate::mouseReleaseEvent(QMouseEvent *event)
 {
 #if QT_CONFIG(mainwindow)
+    // if we are peforming a platform drag ignore the release here and end the drag when the actual
+    // drag ends.
+    if (QMainWindowLayout::needsPlatformDrag())
+        return false;
 
     if (event->button() == Qt::LeftButton && state && !state->nca) {
         endDrag();
@@ -1185,7 +1207,9 @@ void QDockWidgetPrivate::setWindowState(bool floating, bool unplug, const QRect
         flags |= Qt::FramelessWindowHint;
     }
 
-    if (unplug)
+    // If we are performing a platform drag the flag is not needed and we want to avoid recreating
+    // the platform window when it would be removed later
+    if (unplug && !QMainWindowLayout::needsPlatformDrag())
         flags |= Qt::X11BypassWindowManagerHint;
 
     q->setWindowFlags(flags);
diff --git a/src/widgets/widgets/qkeysequenceedit.cpp b/src/widgets/widgets/qkeysequenceedit.cpp
index 9a9bf256..d2474e56 100644
--- a/src/widgets/widgets/qkeysequenceedit.cpp
+++ b/src/widgets/widgets/qkeysequenceedit.cpp
@@ -414,7 +414,8 @@ void QKeySequenceEdit::timerEvent(QTimerEvent *e)
 void QKeySequenceEdit::focusOutEvent(QFocusEvent *e)
 {
     Q_D(QKeySequenceEdit);
-    d->finishEditing();
+    if (e->reason() != Qt::PopupFocusReason)
+        d->finishEditing();
     QWidget::focusOutEvent(e);
 }
 
diff --git a/src/widgets/widgets/qlineedit.cpp b/src/widgets/widgets/qlineedit.cpp
index 5d58c0b3..96152218 100644
--- a/src/widgets/widgets/qlineedit.cpp
+++ b/src/widgets/widgets/qlineedit.cpp
@@ -1803,6 +1803,22 @@ void QLineEdit::inputMethodEvent(QInputMethodEvent *e)
 */
 QVariant QLineEdit::inputMethodQuery(Qt::InputMethodQuery property) const
 {
+#ifdef Q_OS_ANDROID
+    // QTBUG-61652
+    if (property == Qt::ImEnterKeyType) {
+        QWidget *next = nextInFocusChain();
+        while (next && next != this && next->focusPolicy() == Qt::NoFocus)
+            next = next->nextInFocusChain();
+        if (next) {
+            const auto nextYPos = next->mapToGlobal(QPoint(0, 0)).y();
+            const auto currentYPos = mapToGlobal(QPoint(0, 0)).y();
+            if (currentYPos < nextYPos)
+                // Set EnterKey to KeyNext type only if the next widget
+                // in the focus chain is below current QLineEdit
+                return Qt::EnterKeyNext;
+        }
+    }
+#endif
     return inputMethodQuery(property, QVariant());
 }
 
diff --git a/src/widgets/widgets/qmainwindow.cpp b/src/widgets/widgets/qmainwindow.cpp
index 10489f83..fcf6d56c 100644
--- a/src/widgets/widgets/qmainwindow.cpp
+++ b/src/widgets/widgets/qmainwindow.cpp
@@ -25,6 +25,7 @@
 #include <qstyle.h>
 #include <qdebug.h>
 #include <qpainter.h>
+#include <qmimedata.h>
 
 #include <private/qwidget_p.h>
 #if QT_CONFIG(toolbar)
@@ -36,6 +37,8 @@
 
 QT_BEGIN_NAMESPACE
 
+using namespace Qt::StringLiterals;
+
 class QMainWindowPrivate : public QWidgetPrivate
 {
     Q_DECLARE_PUBLIC(QMainWindow)
@@ -121,6 +124,7 @@ void QMainWindowPrivate::init()
     const int metric = q->style()->pixelMetric(QStyle::PM_ToolBarIconSize, nullptr, q);
     iconSize = QSize(metric, metric);
     q->setAttribute(Qt::WA_Hover);
+    q->setAcceptDrops(true);
 }
 
 /*
@@ -276,8 +280,7 @@ void QMainWindowPrivate::init()
     is the position and size (relative to the size of the main window)
     of the toolbars and dock widgets that are stored.
 
-    \sa QMenuBar, QToolBar, QStatusBar, QDockWidget,
-    {Menus Example}
+    \sa QMenuBar, QToolBar, QStatusBar, QDockWidget, {Menus Example}
 */
 
 /*!
@@ -1295,6 +1298,22 @@ bool QMainWindow::event(QEvent *event)
             if (!d->explicitIconSize)
                 setIconSize(QSize());
             break;
+#if QT_CONFIG(draganddrop)
+        case QEvent::DragEnter:
+        case QEvent::Drop:
+            if (!d->layout->draggingWidget)
+                break;
+            event->accept();
+            return true;
+        case QEvent::DragMove: {
+            if (!d->layout->draggingWidget)
+                break;
+            auto dragMoveEvent = static_cast<QDragMoveEvent *>(event);
+            d->layout->hover(d->layout->draggingWidget, dragMoveEvent->position().toPoint());
+            event->accept();
+            return true;
+        }
+#endif
         default:
             break;
     }
diff --git a/src/widgets/widgets/qmainwindow.h b/src/widgets/widgets/qmainwindow.h
index 90e37d72..a0500934 100644
--- a/src/widgets/widgets/qmainwindow.h
+++ b/src/widgets/widgets/qmainwindow.h
@@ -178,6 +178,7 @@ protected:
 private:
     Q_DECLARE_PRIVATE(QMainWindow)
     Q_DISABLE_COPY(QMainWindow)
+    friend class QDockWidgetGroupWindow;
 };
 
 Q_DECLARE_OPERATORS_FOR_FLAGS(QMainWindow::DockOptions)
diff --git a/src/widgets/widgets/qmainwindowlayout.cpp b/src/widgets/widgets/qmainwindowlayout.cpp
index 5571b9e5..f51fc414 100644
--- a/src/widgets/widgets/qmainwindowlayout.cpp
+++ b/src/widgets/widgets/qmainwindowlayout.cpp
@@ -24,6 +24,10 @@
 #endif
 
 #include <qapplication.h>
+#if QT_CONFIG(draganddrop)
+#include <qdrag.h>
+#endif
+#include <qmimedata.h>
 #if QT_CONFIG(statusbar)
 #include <qstatusbar.h>
 #endif
@@ -3031,6 +3035,41 @@ bool QMainWindowLayout::restoreState(QDataStream &stream)
     return true;
 }
 
+#if QT_CONFIG(draganddrop)
+bool QMainWindowLayout::needsPlatformDrag()
+{
+    static const bool wayland =
+            QGuiApplication::platformName().startsWith("wayland"_L1, Qt::CaseInsensitive);
+    return wayland;
+}
+
+Qt::DropAction QMainWindowLayout::performPlatformWidgetDrag(QLayoutItem *widgetItem,
+                                                            const QPoint &pressPosition)
+{
+    draggingWidget = widgetItem;
+    QWidget *widget = widgetItem->widget();
+    auto drag = QDrag(widget);
+    auto mimeData = new QMimeData();
+    auto window = widgetItem->widget()->windowHandle();
+
+    auto serialize = [](const auto &object) {
+        QByteArray data;
+        QDataStream dataStream(&data, QIODevice::WriteOnly);
+        dataStream << object;
+        return data;
+    };
+    mimeData->setData("application/x-qt-mainwindowdrag-window"_L1,
+                      serialize(reinterpret_cast<qintptr>(window)));
+    mimeData->setData("application/x-qt-mainwindowdrag-position"_L1, serialize(pressPosition));
+    drag.setMimeData(mimeData);
+
+    auto result = drag.exec();
+
+    draggingWidget = nullptr;
+    return result;
+}
+#endif
+
 QT_END_NAMESPACE
 
 #include "moc_qmainwindowlayout_p.cpp"
diff --git a/src/widgets/widgets/qmainwindowlayout_p.h b/src/widgets/widgets/qmainwindowlayout_p.h
index 4719210e..f09c9e82 100644
--- a/src/widgets/widgets/qmainwindowlayout_p.h
+++ b/src/widgets/widgets/qmainwindowlayout_p.h
@@ -306,8 +306,10 @@ class Q_AUTOTEST_EXPORT QDockWidgetGroupWindow : public QWidget
 {
     Q_OBJECT
 public:
-    explicit QDockWidgetGroupWindow(QWidget* parent = nullptr, Qt::WindowFlags f = { })
-        : QWidget(parent, f) {}
+    explicit QDockWidgetGroupWindow(QWidget *parent = nullptr, Qt::WindowFlags f = {})
+        : QWidget(parent, f)
+    {
+    }
     QDockAreaLayoutInfo *layoutInfo() const;
 #if QT_CONFIG(tabbar)
     const QDockAreaLayoutInfo *tabLayoutInfo() const;
@@ -572,6 +574,12 @@ public:
     void restore(bool keepSavedState = false);
     void animationFinished(QWidget *widget);
 
+#if QT_CONFIG(draganddrop)
+    static bool needsPlatformDrag();
+    Qt::DropAction performPlatformWidgetDrag(QLayoutItem *widgetItem, const QPoint &pressPosition);
+    QLayoutItem *draggingWidget = nullptr;
+#endif
+
 protected:
     void timerEvent(QTimerEvent *e) override;
 
diff --git a/src/widgets/widgets/qmenubar.cpp b/src/widgets/widgets/qmenubar.cpp
index a53bc975..a5c2c894 100644
--- a/src/widgets/widgets/qmenubar.cpp
+++ b/src/widgets/widgets/qmenubar.cpp
@@ -596,11 +596,13 @@ void QMenuBar::initStyleOption(QStyleOptionMenuItem *option, const QAction *acti
 
     Qt for \macos also provides a menu bar merging feature to make
     QMenuBar conform more closely to accepted \macos menu bar layout.
-    The merging functionality is based on string matching the title of
-    a QMenu entry. These strings are translated (using QObject::tr())
-    in the "QMenuBar" context. If an entry is moved its slots will still
-    fire as if it was in the original place. The table below outlines
-    the strings looked for and where the entry is placed if matched:
+    If an entry is moved its slots will still fire as if it was in the
+    original place.
+
+    The merging functionality is based on the QAction::menuRole() of
+    the menu entries. If an item has QAction::TextHeuristicRole,
+    the role is determined by string matching the title using the
+    following heuristics:
 
     \table
     \header \li String matches \li Placement \li Notes
@@ -618,8 +620,8 @@ void QMenuBar::initStyleOption(QStyleOptionMenuItem *option, const QAction *acti
             created to call QCoreApplication::quit()
     \endtable
 
-    You can override this behavior by using the QAction::menuRole()
-    property.
+    You can override this behavior by setting the QAction::menuRole()
+    property to QAction::NoRole.
 
     If you want all windows in a Mac application to share one menu
     bar, you must create a menu bar that does not have a parent.
diff --git a/src/widgets/widgets/qplaintextedit.cpp b/src/widgets/widgets/qplaintextedit.cpp
index 2568705b..8a0caf59 100644
--- a/src/widgets/widgets/qplaintextedit.cpp
+++ b/src/widgets/widgets/qplaintextedit.cpp
@@ -418,7 +418,7 @@ QPlainTextEditControl::QPlainTextEditControl(QPlainTextEdit *parent)
     setAcceptRichText(false);
 }
 
-void QPlainTextEditPrivate::_q_cursorPositionChanged()
+void QPlainTextEditPrivate::cursorPositionChanged()
 {
     pageUpDownLastCursorYIsValid = false;
     Q_Q(QPlainTextEdit);
@@ -429,11 +429,18 @@ void QPlainTextEditPrivate::_q_cursorPositionChanged()
     emit q->cursorPositionChanged();
 }
 
-void QPlainTextEditPrivate::_q_verticalScrollbarActionTriggered(int action) {
-    if (action == QAbstractSlider::SliderPageStepAdd) {
+void QPlainTextEditPrivate::verticalScrollbarActionTriggered(int action) {
+
+    const auto a = static_cast<QAbstractSlider::SliderAction>(action);
+    switch (a) {
+    case QAbstractSlider::SliderPageStepAdd:
         pageUpDown(QTextCursor::Down, QTextCursor::MoveAnchor, false);
-    } else if (action == QAbstractSlider::SliderPageStepSub) {
+        break;
+    case QAbstractSlider::SliderPageStepSub:
         pageUpDown(QTextCursor::Up, QTextCursor::MoveAnchor, false);
+        break;
+    default:
+        break;
     }
 }
 
@@ -719,8 +726,7 @@ void QPlainTextEditPrivate::updateViewport()
 
 QPlainTextEditPrivate::QPlainTextEditPrivate()
     : tabChangesFocus(false), showCursorOnInitialShow(false), backgroundVisible(false),
-      centerOnScroll(false), inDrag(false), clickCausedFocus(false), placeholderVisible(true),
-      pageUpDownLastCursorYIsValid(false)
+      centerOnScroll(false), inDrag(false), clickCausedFocus(false), pageUpDownLastCursorYIsValid(false)
 {
 }
 
@@ -736,23 +742,28 @@ void QPlainTextEditPrivate::init(const QString &txt)
 
     control->setPalette(q->palette());
 
-    QObject::connect(vbar, SIGNAL(actionTriggered(int)), q, SLOT(_q_verticalScrollbarActionTriggered(int)));
-
-    QObject::connect(control, SIGNAL(microFocusChanged()), q, SLOT(updateMicroFocus()));
-    QObject::connect(control, SIGNAL(documentSizeChanged(QSizeF)), q, SLOT(_q_adjustScrollbars()));
-    QObject::connect(control, SIGNAL(blockCountChanged(int)), q, SIGNAL(blockCountChanged(int)));
-    QObject::connect(control, SIGNAL(updateRequest(QRectF)), q, SLOT(_q_repaintContents(QRectF)));
-    QObject::connect(control, SIGNAL(modificationChanged(bool)), q, SIGNAL(modificationChanged(bool)));
-
-    QObject::connect(control, SIGNAL(textChanged()), q, SIGNAL(textChanged()));
-    QObject::connect(control, SIGNAL(undoAvailable(bool)), q, SIGNAL(undoAvailable(bool)));
-    QObject::connect(control, SIGNAL(redoAvailable(bool)), q, SIGNAL(redoAvailable(bool)));
-    QObject::connect(control, SIGNAL(copyAvailable(bool)), q, SIGNAL(copyAvailable(bool)));
-    QObject::connect(control, SIGNAL(selectionChanged()), q, SIGNAL(selectionChanged()));
-    QObject::connect(control, SIGNAL(cursorPositionChanged()), q, SLOT(_q_cursorPositionChanged()));
-
-    QObject::connect(control, SIGNAL(textChanged()), q, SLOT(_q_updatePlaceholderVisibility()));
-    QObject::connect(control, SIGNAL(textChanged()), q, SLOT(updateMicroFocus()));
+    QObjectPrivate::connect(vbar, &QAbstractSlider::actionTriggered,
+                            this, &QPlainTextEditPrivate::verticalScrollbarActionTriggered);
+    QObject::connect(control, &QWidgetTextControl::microFocusChanged, q,
+                     [q](){q->updateMicroFocus(); });
+    QObjectPrivate::connect(control, &QWidgetTextControl::documentSizeChanged,
+                            this, &QPlainTextEditPrivate::adjustScrollbars);
+    QObject::connect(control, &QWidgetTextControl::blockCountChanged,
+                     q, &QPlainTextEdit::blockCountChanged);
+    QObjectPrivate::connect(control, &QWidgetTextControl::updateRequest,
+                            this, &QPlainTextEditPrivate::repaintContents);
+    QObject::connect(control, &QWidgetTextControl::modificationChanged,
+                     q, &QPlainTextEdit::modificationChanged);
+    QObject::connect(control, &QWidgetTextControl::textChanged, q, &QPlainTextEdit::textChanged);
+    QObject::connect(control, &QWidgetTextControl::undoAvailable, q, &QPlainTextEdit::undoAvailable);
+    QObject::connect(control, &QWidgetTextControl::redoAvailable, q, &QPlainTextEdit::redoAvailable);
+    QObject::connect(control, &QWidgetTextControl::copyAvailable, q, &QPlainTextEdit::copyAvailable);
+    QObject::connect(control, &QWidgetTextControl::selectionChanged, q, &QPlainTextEdit::selectionChanged);
+    QObjectPrivate::connect(control, &QWidgetTextControl::cursorPositionChanged,
+                            this, &QPlainTextEditPrivate::cursorPositionChanged);
+    QObjectPrivate::connect(control, &QWidgetTextControl::textChanged,
+                            this, &QPlainTextEditPrivate::updatePlaceholderVisibility);
+    QObject::connect(control, &QWidgetTextControl::textChanged, q, [q](){q->updateMicroFocus(); });
 
     // set a null page size initially to avoid any relayouting until the textedit
     // is shown. relayoutDocument() will take care of setting the page size to the
@@ -780,26 +791,19 @@ void QPlainTextEditPrivate::init(const QString &txt)
 #endif
 }
 
-void QPlainTextEditPrivate::_q_updatePlaceholderVisibility()
+void QPlainTextEditPrivate::updatePlaceholderVisibility()
 {
     Q_Q(QPlainTextEdit);
 
     // We normally only repaint the part of view that contains text in the
-    // document that has changed (in _q_repaintContents). But the placeholder
+    // document that has changed (in repaintContents). But the placeholder
     // text is not a part of the document, but is drawn on separately. So whenever
     // we either show or hide the placeholder text, we issue a full update.
-    bool placeholderCurrentyVisible = placeholderVisible;
-
-    placeholderVisible = !placeholderText.isEmpty()
-            && q->document()->isEmpty()
-            && (!q->firstVisibleBlock().isValid() ||
-                 q->firstVisibleBlock().layout()->preeditAreaText().isEmpty());
-
-    if (placeholderCurrentyVisible != placeholderVisible)
+    if (q->document()->isEmpty())
         viewport->update();
 }
 
-void QPlainTextEditPrivate::_q_repaintContents(const QRectF &contentsRect)
+void QPlainTextEditPrivate::repaintContents(const QRectF &contentsRect)
 {
     Q_Q(QPlainTextEdit);
     if (!contentsRect.isValid()) {
@@ -932,7 +936,7 @@ void QPlainTextEditPrivate::pageUpDown(QTextCursor::MoveOperation op, QTextCurso
 
 #if QT_CONFIG(scrollbar)
 
-void QPlainTextEditPrivate::_q_adjustScrollbars()
+void QPlainTextEditPrivate::adjustScrollbars()
 {
     Q_Q(QPlainTextEdit);
     QTextDocument *doc = control->document();
@@ -986,8 +990,6 @@ void QPlainTextEditPrivate::_q_adjustScrollbars()
         vSliderLength = lineSpacing != 0 ? viewport->height() / lineSpacing : 0;
     }
 
-
-
     QSizeF documentSize = documentLayout->documentSize();
     vbar->setRange(0, qMax(0, vmax));
     vbar->setPageStep(vSliderLength);
@@ -1176,7 +1178,6 @@ void QPlainTextEditPrivate::ensureViewportLayouted()
    editor with line wrap enabled in real time. It also makes for a
    fast log viewer (see setMaximumBlockCount()).
 
-
     \sa QTextDocument, QTextCursor
         {Syntax Highlighter Example}, {Rich Text Processing}
 
@@ -1290,7 +1291,7 @@ void QPlainTextEdit::setDocument(QTextDocument *document)
     d->documentLayoutPtr = documentLayout;
     d->updateDefaultTextOption();
     d->relayoutDocument();
-    d->_q_adjustScrollbars();
+    d->adjustScrollbars();
 }
 
 /*!
@@ -1322,7 +1323,7 @@ void QPlainTextEdit::setPlaceholderText(const QString &placeholderText)
     Q_D(QPlainTextEdit);
     if (d->placeholderText != placeholderText) {
         d->placeholderText = placeholderText;
-        d->_q_updatePlaceholderVisibility();
+        d->updatePlaceholderVisibility();
     }
 }
 
@@ -1502,53 +1503,57 @@ bool QPlainTextEdit::event(QEvent *e)
 {
     Q_D(QPlainTextEdit);
 
+    switch (e->type()) {
 #ifndef QT_NO_CONTEXTMENU
-    if (e->type() == QEvent::ContextMenu
-        && static_cast<QContextMenuEvent *>(e)->reason() == QContextMenuEvent::Keyboard) {
-        ensureCursorVisible();
-        const QPoint cursorPos = cursorRect().center();
-        QContextMenuEvent ce(QContextMenuEvent::Keyboard, cursorPos, d->viewport->mapToGlobal(cursorPos));
-        ce.setAccepted(e->isAccepted());
-        const bool result = QAbstractScrollArea::event(&ce);
-        e->setAccepted(ce.isAccepted());
-        return result;
-    }
+    case QEvent::ContextMenu:
+        if (static_cast<QContextMenuEvent *>(e)->reason() == QContextMenuEvent::Keyboard) {
+            ensureCursorVisible();
+            const QPoint cursorPos = cursorRect().center();
+            QContextMenuEvent ce(QContextMenuEvent::Keyboard, cursorPos, d->viewport->mapToGlobal(cursorPos));
+            ce.setAccepted(e->isAccepted());
+            const bool result = QAbstractScrollArea::event(&ce);
+            e->setAccepted(ce.isAccepted());
+            return result;
+        }
+        break;
 #endif // QT_NO_CONTEXTMENU
-    if (e->type() == QEvent::ShortcutOverride
-               || e->type() == QEvent::ToolTip) {
+    case QEvent::ShortcutOverride:
+    case QEvent::ToolTip:
         d->sendControlEvent(e);
-    }
+        break;
 #ifdef QT_KEYPAD_NAVIGATION
-    else if (e->type() == QEvent::EnterEditFocus || e->type() == QEvent::LeaveEditFocus) {
+    case QEvent::EnterEditFocus:
+    case QEvent::LeaveEditFocus:
         if (QApplicationPrivate::keypadNavigationEnabled())
             d->sendControlEvent(e);
-    }
+        break;
 #endif
 #ifndef QT_NO_GESTURES
-    else if (e->type() == QEvent::Gesture) {
-        QGestureEvent *ge = static_cast<QGestureEvent *>(e);
-        QPanGesture *g = static_cast<QPanGesture *>(ge->gesture(Qt::PanGesture));
-        if (g) {
+    case QEvent::Gesture:
+        if (auto *g = static_cast<QGestureEvent *>(e)->gesture(Qt::PanGesture)) {
+            QPanGesture *panGesture = static_cast<QPanGesture *>(g);
             QScrollBar *hBar = horizontalScrollBar();
             QScrollBar *vBar = verticalScrollBar();
-            if (g->state() == Qt::GestureStarted)
+            if (panGesture->state() == Qt::GestureStarted)
                 d->originalOffsetY = vBar->value();
-            QPointF offset = g->offset();
+            QPointF offset = panGesture->offset();
             if (!offset.isNull()) {
                 if (QGuiApplication::isRightToLeft())
                     offset.rx() *= -1;
                 // QPlainTextEdit scrolls by lines only in vertical direction
                 QFontMetrics fm(document()->defaultFont());
                 int lineHeight = fm.height();
-                int newX = hBar->value() - g->delta().x();
+                int newX = hBar->value() - panGesture->delta().x();
                 int newY = d->originalOffsetY - offset.y()/lineHeight;
                 hBar->setValue(newX);
                 vBar->setValue(newY);
             }
         }
         return true;
-    }
 #endif // QT_NO_GESTURES
+    default:
+        break;
+    }
     return QAbstractScrollArea::event(e);
 }
 
@@ -1831,7 +1836,7 @@ void QPlainTextEdit::resizeEvent(QResizeEvent *e)
     Q_D(QPlainTextEdit);
     if (e->oldSize().width() != e->size().width())
         d->relayoutDocument();
-    d->_q_adjustScrollbars();
+    d->adjustScrollbars();
 }
 
 void QPlainTextEditPrivate::relayoutDocument()
@@ -1897,7 +1902,7 @@ void QPlainTextEdit::paintEvent(QPaintEvent *e)
     er.setRight(qMin(er.right(), maxX));
     painter.setClipRect(er);
 
-    if (d->placeholderVisible) {
+    if (d->isPlaceHolderTextVisible()) {
         const QColor col = d->control->palette().placeholderText().color();
         painter.setPen(col);
         painter.setClipRect(e->rect());
@@ -2271,7 +2276,7 @@ void QPlainTextEdit::showEvent(QShowEvent *)
         d->showCursorOnInitialShow = false;
         ensureCursorVisible();
     }
-    d->_q_adjustScrollbars();
+    d->adjustScrollbars();
 }
 
 /*! \reimp
@@ -2280,21 +2285,30 @@ void QPlainTextEdit::changeEvent(QEvent *e)
 {
     Q_D(QPlainTextEdit);
     QAbstractScrollArea::changeEvent(e);
-    if (e->type() == QEvent::ApplicationFontChange
-        || e->type() == QEvent::FontChange) {
+
+    switch (e->type()) {
+    case QEvent::ApplicationFontChange:
+    case QEvent::FontChange:
         d->control->document()->setDefaultFont(font());
-    }  else if (e->type() == QEvent::ActivationChange) {
+        break;
+    case QEvent::ActivationChange:
         d->control->setPalette(palette());
         if (!isActiveWindow())
             d->autoScrollTimer.stop();
-    } else if (e->type() == QEvent::EnabledChange) {
+        break;
+    case QEvent::EnabledChange:
         e->setAccepted(isEnabled());
         d->control->setPalette(palette());
         d->sendControlEvent(e);
-    } else if (e->type() == QEvent::PaletteChange) {
+        break;
+    case QEvent::PaletteChange:
         d->control->setPalette(palette());
-    } else if (e->type() == QEvent::LayoutDirectionChange) {
+        break;
+    case QEvent::LayoutDirectionChange:
         d->sendControlEvent(e);
+        break;
+    default:
+        break;
     }
 }
 
@@ -2765,7 +2779,7 @@ void QPlainTextEdit::setLineWrapMode(LineWrapMode wrap)
     d->lineWrap = wrap;
     d->updateDefaultTextOption();
     d->relayoutDocument();
-    d->_q_adjustScrollbars();
+    d->adjustScrollbars();
     ensureCursorVisible();
 }
 
@@ -2851,7 +2865,7 @@ void QPlainTextEdit::setCenterOnScroll(bool enabled)
     if (enabled == d->centerOnScroll)
         return;
     d->centerOnScroll = enabled;
-    d->_q_adjustScrollbars();
+    d->adjustScrollbars();
 }
 
 
@@ -2979,12 +2993,17 @@ void QPlainTextEditPrivate::append(const QString &text, Qt::TextFormat format)
     bool documentSizeChangedBlocked = documentLayout->priv()->blockDocumentSizeChanged;
     documentLayout->priv()->blockDocumentSizeChanged = true;
 
-    if (format == Qt::RichText)
+    switch (format) {
+    case Qt::RichText:
         control->appendHtml(text);
-    else if (format == Qt::PlainText)
+        break;
+    case Qt::PlainText:
         control->appendPlainText(text);
-    else
+        break;
+    default:
         control->append(text);
+        break;
+    }
 
     if (maximumBlockCount > 0) {
         if (document->blockCount() > maximumBlockCount) {
@@ -3006,7 +3025,7 @@ void QPlainTextEditPrivate::append(const QString &text, Qt::TextFormat format)
     }
 
     documentLayout->priv()->blockDocumentSizeChanged = documentSizeChangedBlocked;
-    _q_adjustScrollbars();
+    adjustScrollbars();
 
 
     if (atBottom) {
diff --git a/src/widgets/widgets/qplaintextedit.h b/src/widgets/widgets/qplaintextedit.h
index d42b67fa..89a4d3ab 100644
--- a/src/widgets/widgets/qplaintextedit.h
+++ b/src/widgets/widgets/qplaintextedit.h
@@ -240,11 +240,6 @@ protected:
 
 private:
     Q_DISABLE_COPY(QPlainTextEdit)
-    Q_PRIVATE_SLOT(d_func(), void _q_repaintContents(const QRectF &r))
-    Q_PRIVATE_SLOT(d_func(), void _q_updatePlaceholderVisibility())
-    Q_PRIVATE_SLOT(d_func(), void _q_adjustScrollbars())
-    Q_PRIVATE_SLOT(d_func(), void _q_verticalScrollbarActionTriggered(int))
-    Q_PRIVATE_SLOT(d_func(), void _q_cursorPositionChanged())
 
     friend class QPlainTextEditControl;
 };
diff --git a/src/widgets/widgets/qplaintextedit_p.h b/src/widgets/widgets/qplaintextedit_p.h
index 541011cc..6e4aa813 100644
--- a/src/widgets/widgets/qplaintextedit_p.h
+++ b/src/widgets/widgets/qplaintextedit_p.h
@@ -84,14 +84,14 @@ public:
     QPlainTextEditPrivate();
 
     void init(const QString &txt = QString());
-    void _q_repaintContents(const QRectF &contentsRect);
-    void _q_updatePlaceholderVisibility();
+    void repaintContents(const QRectF &contentsRect);
+    void updatePlaceholderVisibility();
 
     inline QPoint mapToContents(const QPoint &point) const
         { return QPoint(point.x() + horizontalOffset(), point.y() + verticalOffset()); }
 
-    void _q_adjustScrollbars();
-    void _q_verticalScrollbarActionTriggered(int action);
+    void adjustScrollbars();
+    void verticalScrollbarActionTriggered(int action);
     void ensureViewportLayouted();
     void relayoutDocument();
 
@@ -128,7 +128,6 @@ public:
     uint centerOnScroll : 1;
     uint inDrag : 1;
     uint clickCausedFocus : 1;
-    uint placeholderVisible : 1;
     uint pageUpDownLastCursorYIsValid : 1;
 
     void setTopLine(int visualTopLine, int dx = 0);
@@ -142,8 +141,13 @@ public:
 
     void append(const QString &text, Qt::TextFormat format = Qt::AutoText);
 
-    void _q_cursorPositionChanged();
-    void _q_modificationChanged(bool);
+    void cursorPositionChanged();
+    void modificationChanged(bool);
+    inline bool isPlaceHolderTextVisible()
+    {
+        Q_Q(QPlainTextEdit);
+        return q->document()->isEmpty() && !q->placeholderText().isEmpty();
+    }
 };
 
 QT_END_NAMESPACE
diff --git a/src/widgets/widgets/qpushbutton.cpp b/src/widgets/widgets/qpushbutton.cpp
index ec882db1..74ec79fa 100644
--- a/src/widgets/widgets/qpushbutton.cpp
+++ b/src/widgets/widgets/qpushbutton.cpp
@@ -575,17 +575,14 @@ void QPushButtonPrivate::_q_popupPressed()
 
     QPoint menuPos = adjustedMenuPosition();
 
-    QPointer<QPushButton> guard(q);
-    QMenuPrivate::get(menu)->causedPopup.widget = guard;
+    QMenuPrivate::get(menu)->causedPopup.widget = q;
 
     //Because of a delay in menu effects, we must keep track of the
     //menu visibility to avoid flicker on button release
     menuOpen = true;
-    menu->exec(menuPos);
-    if (guard) {
-        menuOpen = false;
-        q->setDown(false);
-    }
+    QObject::connect(menu, &QMenu::aboutToHide,
+                     q, [q]{ q->setDown(false); }, Qt::SingleShotConnection);
+    menu->popup(menuPos);
 }
 
 QPoint QPushButtonPrivate::adjustedMenuPosition()
diff --git a/src/widgets/widgets/qstackedwidget.cpp b/src/widgets/widgets/qstackedwidget.cpp
index 938cc22e..754744cf 100644
--- a/src/widgets/widgets/qstackedwidget.cpp
+++ b/src/widgets/widgets/qstackedwidget.cpp
@@ -15,7 +15,6 @@ class QStackedWidgetPrivate : public QFramePrivate
 public:
     QStackedWidgetPrivate():layout(nullptr){}
     QStackedLayout *layout;
-    bool blockChildAdd;
 };
 
 /*!
diff --git a/src/widgets/widgets/qstatusbar.cpp b/src/widgets/widgets/qstatusbar.cpp
index d526f93a..ea391352 100644
--- a/src/widgets/widgets/qstatusbar.cpp
+++ b/src/widgets/widgets/qstatusbar.cpp
@@ -286,7 +286,7 @@ int QStatusBar::insertWidget(int index, QWidget *widget, int stretch)
     minimum of space.
 
     Permanently means that the widget may not be obscured by temporary
-    messages. It is is located at the far right of the status bar.
+    messages. It is located at the far right of the status bar.
 
     \sa insertPermanentWidget(), removeWidget(), addWidget()
 */
@@ -298,7 +298,6 @@ void QStatusBar::addPermanentWidget(QWidget * widget, int stretch)
     insertPermanentWidget(d_func()->items.size(), widget, stretch);
 }
 
-
 /*!
     \since 4.2
 
@@ -313,7 +312,7 @@ void QStatusBar::addPermanentWidget(QWidget * widget, int stretch)
     minimum of space.
 
     Permanently means that the widget may not be obscured by temporary
-    messages. It is is located at the far right of the status bar.
+    messages. It is located at the far right of the status bar.
 
     \sa addPermanentWidget(), removeWidget(), addWidget()
 */
diff --git a/src/widgets/widgets/qtabbar.cpp b/src/widgets/widgets/qtabbar.cpp
index 05621f83..c4a2f57b 100644
--- a/src/widgets/widgets/qtabbar.cpp
+++ b/src/widgets/widgets/qtabbar.cpp
@@ -1883,21 +1883,30 @@ void QTabBar::paintEvent(QPaintEvent *)
         QStyleOptionTab tabOption;
         const auto tab = d->tabList.at(selected);
         initStyleOption(&tabOption, selected);
+
         if (d->paintWithOffsets && tab->dragOffset != 0) {
+            // if the drag offset is != 0, a move is in progress (drag or animation)
+            // => set the tab position to Moving to preserve the rect
+            tabOption.position = QStyleOptionTab::TabPosition::Moving;
+
             if (vertical)
                 tabOption.rect.moveTop(tabOption.rect.y() + tab->dragOffset);
             else
                 tabOption.rect.moveLeft(tabOption.rect.x() + tab->dragOffset);
         }
-        if (!d->dragInProgress)
-            p.drawControl(QStyle::CE_TabBarTab, tabOption);
-        else {
-            int taboverlap = style()->pixelMetric(QStyle::PM_TabBarTabOverlap, nullptr, this);
-            if (verticalTabs(d->shape))
-                d->movingTab->setGeometry(tabOption.rect.adjusted(0, -taboverlap, 0, taboverlap));
-            else
-                d->movingTab->setGeometry(tabOption.rect.adjusted(-taboverlap, 0, taboverlap, 0));
-        }
+
+        // Calculate the rect of a moving tab
+        const int taboverlap = style()->pixelMetric(QStyle::PM_TabBarTabOverlap, nullptr, this);
+        const QRect &movingRect = verticalTabs(d->shape)
+                ? tabOption.rect.adjusted(0, -taboverlap, 0, taboverlap)
+                : tabOption.rect.adjusted(-taboverlap, 0, taboverlap, 0);
+
+        // If a drag is in process, set the moving tab's geometry here
+        // (in an animation, it is already set)
+        if (d->dragInProgress)
+            d->movingTab->setGeometry(movingRect);
+
+        p.drawControl(QStyle::CE_TabBarTab, tabOption);
     }
 
     // Only draw the tear indicator if necessary. Most of the time we don't need too.
@@ -2237,7 +2246,7 @@ void QTabBarPrivate::setupMovableTab()
 
     QStyleOptionTab tab;
     q->initStyleOption(&tab, pressedIndex);
-    tab.position = QStyleOptionTab::OnlyOneTab;
+    tab.position = QStyleOptionTab::Moving;
     if (verticalTabs(shape))
         tab.rect.moveTopLeft(QPoint(0, taboverlap));
     else
diff --git a/src/widgets/widgets/qtoolbar.cpp b/src/widgets/widgets/qtoolbar.cpp
index 8a55b9c4..c2def3c6 100644
--- a/src/widgets/widgets/qtoolbar.cpp
+++ b/src/widgets/widgets/qtoolbar.cpp
@@ -7,6 +7,9 @@
 #if QT_CONFIG(combobox)
 #include <qcombobox.h>
 #endif
+#if QT_CONFIG(draganddrop)
+#include <qdrag.h>
+#endif
 #include <qevent.h>
 #include <qlayout.h>
 #include <qmainwindow.h>
@@ -14,6 +17,7 @@
 #if QT_CONFIG(menubar)
 #include <qmenubar.h>
 #endif
+#include <qmimedata.h>
 #if QT_CONFIG(rubberband)
 #include <qrubberband.h>
 #endif
@@ -40,6 +44,8 @@
 
 QT_BEGIN_NAMESPACE
 
+using namespace Qt::StringLiterals;
+
 // qmainwindow.cpp
 extern QMainWindowLayout *qt_mainwindow_layout(const QMainWindow *window);
 
@@ -105,7 +111,9 @@ void QToolBarPrivate::updateWindowFlags(bool floating, bool unplug)
 
     flags |= Qt::FramelessWindowHint;
 
-    if (unplug)
+    // If we are performing a platform drag the flag is not needed and we want to avoid recreating
+    // the platform window when it would be removed later
+    if (unplug && !QMainWindowLayout::needsPlatformDrag())
         flags |= Qt::X11BypassWindowManagerHint;
 
     q->setWindowFlags(flags);
@@ -117,8 +125,6 @@ void QToolBarPrivate::setWindowState(bool floating, bool unplug, const QRect &re
     bool visible = !q->isHidden();
     bool wasFloating = q->isFloating(); // ...is also currently using popup menus
 
-    q->hide();
-
     updateWindowFlags(floating, unplug);
 
     if (floating != wasFloating)
@@ -172,12 +178,27 @@ void QToolBarPrivate::startDrag(bool moving)
     QMainWindowLayout *layout = qt_mainwindow_layout(win);
     Q_ASSERT(layout != nullptr);
 
+    const bool wasFloating = q->isFloating();
+
     if (!moving) {
         state->widgetItem = layout->unplug(q);
         Q_ASSERT(state->widgetItem != nullptr);
     }
     state->dragging = !moving;
     state->moving = moving;
+
+#if QT_CONFIG(draganddrop)
+    if (QMainWindowLayout::needsPlatformDrag() && state->dragging) {
+        auto result = layout->performPlatformWidgetDrag(state->widgetItem, state->pressPos);
+        if (result == Qt::IgnoreAction && !wasFloating) {
+            layout->revert(state->widgetItem);
+            delete state;
+            state = nullptr;
+        } else {
+            endDrag();
+        }
+    }
+#endif
 }
 
 void QToolBarPrivate::endDrag()
@@ -243,6 +264,11 @@ bool QToolBarPrivate::mousePressEvent(QMouseEvent *event)
 
 bool QToolBarPrivate::mouseReleaseEvent(QMouseEvent*)
 {
+    // if we are peforming a platform drag ignore the release here and  end the drag when the actual
+    // drag ends.
+    if (QMainWindowLayout::needsPlatformDrag())
+        return false;
+
     if (state != nullptr) {
         endDrag();
         return true;
@@ -293,6 +319,11 @@ bool QToolBarPrivate::mouseMoveEvent(QMouseEvent *event)
                 q->grabMouse();
     }
 
+    if (!state) {
+        q->releaseMouse();
+        return true;
+    }
+
     if (state->dragging) {
         QPoint pos = event->globalPosition().toPoint();
         // if we are right-to-left, we move so as to keep the right edge the same distance
diff --git a/src/widgets/widgets/qwidgetlinecontrol.cpp b/src/widgets/widgets/qwidgetlinecontrol.cpp
index ed7bc035..4b5d8a23 100644
--- a/src/widgets/widgets/qwidgetlinecontrol.cpp
+++ b/src/widgets/widgets/qwidgetlinecontrol.cpp
@@ -718,7 +718,7 @@ bool QWidgetLineControl::finishChange(int validateFromState, bool update, bool e
         emit selectionChanged();
     }
     if (m_cursor == m_lastCursorPos)
-        updateMicroFocus();
+        emit updateMicroFocus();
     emitCursorPositionChanged();
     return true;
 }
@@ -1395,7 +1395,7 @@ void QWidgetLineControl::emitCursorPositionChanged()
     if (m_cursor != m_lastCursorPos) {
         const int oldLast = m_lastCursorPos;
         m_lastCursorPos = m_cursor;
-        cursorPositionChanged(oldLast, m_cursor);
+        emit cursorPositionChanged(oldLast, m_cursor);
 #if QT_CONFIG(accessibility)
         // otherwise we send a selection update which includes the cursor
         if (!hasSelectedText()) {
diff --git a/src/xml/doc/src/xml-processing.qdoc b/src/xml/doc/src/xml-processing.qdoc
index ad4dadb5..acca1b07 100644
--- a/src/xml/doc/src/xml-processing.qdoc
+++ b/src/xml/doc/src/xml-processing.qdoc
@@ -15,6 +15,7 @@
 /*!
     \page xml-processing.html
     \title XML Processing
+    \ingroup explanations-dataprocessingandio
 
     \brief An Overview of the XML processing facilities in Qt.
 
diff --git a/src/xml/dom/qdomhelpers.cpp b/src/xml/dom/qdomhelpers.cpp
index 48869907..0649e0c7 100644
--- a/src/xml/dom/qdomhelpers.cpp
+++ b/src/xml/dom/qdomhelpers.cpp
@@ -266,8 +266,7 @@ bool QDomParser::parseProlog()
                     value += u" standalone='yes'"_s;
                 } else {
                     // Add the standalone attribute only if it was specified
-                    QXmlStreamReaderPrivate *priv = QXmlStreamReaderPrivate::get(reader);
-                    if (priv->hasStandalone)
+                    if (reader->hasStandaloneDeclaration())
                         value += u" standalone='no'"_s;
                 }
 
diff --git a/sync.profile b/sync.profile
index bc85d0e3..661f14da 100644
--- a/sync.profile
+++ b/sync.profile
@@ -73,6 +73,7 @@
 );
 
 @qpa_headers = ( qr/^qplatform/, qr/^qwindowsystem/ );
+@rhi_headers = ( "qrhi.h", "qrhi_platform.h", "qshader.h", "qshaderdescription.h");
 my @internal_zlib_headers = ( "crc32.h", "deflate.h", "gzguts.h", "inffast.h", "inffixed.h", "inflate.h", "inftrees.h", "trees.h", "zutil.h" );
 my @zlib_headers = ( "zconf.h", "zlib.h" );
 @ignore_headers = ( @internal_zlib_headers );
diff --git a/tests/CMakeLists.txt b/tests/CMakeLists.txt
index dea9ccb7..78192ce6 100644
--- a/tests/CMakeLists.txt
+++ b/tests/CMakeLists.txt
@@ -4,7 +4,6 @@
 if(QT_BUILD_STANDALONE_TESTS)
     # Add qt_find_package calls for extra dependencies that need to be found when building
     # the standalone tests here.
-    # special case begin
 
     # Needed for early feature values, despite it being found later on in qt_build_tests().
     # Needs to be find_package, not qt_find_package, because qt_find_package doesn't handle finding
@@ -19,6 +18,5 @@ if(QT_BUILD_STANDALONE_TESTS)
     qt_find_package(ICU 50.1 COMPONENTS i18n uc data PROVIDED_TARGETS ICU::i18n ICU::uc ICU::data)
     qt_find_package(WrapOpenSSL PROVIDED_TARGETS WrapOpenSSL::WrapOpenSSL)
     qt_find_package(WrapOpenSSLHeaders PROVIDED_TARGETS WrapOpenSSLHeaders::WrapOpenSSLHeaders)
-    # special case end
 endif()
 qt_build_tests()
diff --git a/tests/auto/cmake/mockplugins/.cmake.conf b/tests/auto/cmake/mockplugins/.cmake.conf
index 20ad9f78..146dd2bd 100644
--- a/tests/auto/cmake/mockplugins/.cmake.conf
+++ b/tests/auto/cmake/mockplugins/.cmake.conf
@@ -1 +1 @@
-set(QT_REPO_MODULE_VERSION "6.5.3")
+set(QT_REPO_MODULE_VERSION "6.6.0")
diff --git a/tests/auto/cmake/test_generating_cpp_exports/.cmake.conf b/tests/auto/cmake/test_generating_cpp_exports/.cmake.conf
index 20ad9f78..146dd2bd 100644
--- a/tests/auto/cmake/test_generating_cpp_exports/.cmake.conf
+++ b/tests/auto/cmake/test_generating_cpp_exports/.cmake.conf
@@ -1 +1 @@
-set(QT_REPO_MODULE_VERSION "6.5.3")
+set(QT_REPO_MODULE_VERSION "6.6.0")
diff --git a/tests/auto/cmake/test_static_resources/.cmake.conf b/tests/auto/cmake/test_static_resources/.cmake.conf
index 20ad9f78..146dd2bd 100644
--- a/tests/auto/cmake/test_static_resources/.cmake.conf
+++ b/tests/auto/cmake/test_static_resources/.cmake.conf
@@ -1 +1 @@
-set(QT_REPO_MODULE_VERSION "6.5.3")
+set(QT_REPO_MODULE_VERSION "6.6.0")
diff --git a/tests/auto/concurrent/qtconcurrentmap/tst_qtconcurrentmap.cpp b/tests/auto/concurrent/qtconcurrentmap/tst_qtconcurrentmap.cpp
index d8727025..94248404 100644
--- a/tests/auto/concurrent/qtconcurrentmap/tst_qtconcurrentmap.cpp
+++ b/tests/auto/concurrent/qtconcurrentmap/tst_qtconcurrentmap.cpp
@@ -50,7 +50,7 @@ public slots:
 
 using namespace QtConcurrent;
 
-void multiplyBy2Immutable(int x)
+void multiplyBy2Immutable([[maybe_unused]] int x)
 {
     x *= 2;
 }
@@ -58,7 +58,7 @@ void multiplyBy2Immutable(int x)
 class MultiplyBy2Immutable
 {
 public:
-    void operator()(int x)
+    void operator()([[maybe_unused]] int x)
     {
         x *= 2;
     }
@@ -163,9 +163,9 @@ void tst_QtConcurrentMap::map()
         QCOMPARE(list, QList<int>() << 1 << 2 << 3);
 
         // lambda
-        QtConcurrent::map(list, [](int x){x *= 2;}).waitForFinished();
+        QtConcurrent::map(list, []([[maybe_unused]] int x){x *= 2;}).waitForFinished();
         QCOMPARE(list, QList<int>() << 1 << 2 << 3);
-        QtConcurrent::map(list.begin(), list.end(), [](int x){x *= 2;}).waitForFinished();
+        QtConcurrent::map(list.begin(), list.end(), []([[maybe_unused]] int x){x *= 2;}).waitForFinished();
         QCOMPARE(list, QList<int>() << 1 << 2 << 3);
     }
 
@@ -309,9 +309,9 @@ void tst_QtConcurrentMap::blockingMap()
         QCOMPARE(list, QList<int>() << 1 << 2 << 3);
 
         // lambda
-        QtConcurrent::blockingMap(list, [](int x) { x *= 2; });
+        QtConcurrent::blockingMap(list, []([[maybe_unused]] int x) { x *= 2; });
         QCOMPARE(list, QList<int>() << 1 << 2 << 3);
-        QtConcurrent::blockingMap(list.begin(), list.end(), [](int x) { x *= 2; });
+        QtConcurrent::blockingMap(list.begin(), list.end(), []([[maybe_unused]] int x) { x *= 2; });
         QCOMPARE(list, QList<int>() << 1 << 2 << 3);
     }
 
@@ -2047,7 +2047,7 @@ void tst_QtConcurrentMap::stlContainersLambda()
 
     QtConcurrent::mapped(list, [](const int &i) { return mapper(i); }).waitForFinished();
 
-    QtConcurrent::blockingMap(list, [](int x) { x *= 2; });
+    QtConcurrent::blockingMap(list, []([[maybe_unused]] int x) { x *= 2; });
 }
 
 InstanceCounter ic_fn(const InstanceCounter & ic)
diff --git a/tests/auto/concurrent/qtconcurrentrun/tst_qtconcurrentrun.cpp b/tests/auto/concurrent/qtconcurrentrun/tst_qtconcurrentrun.cpp
index ca45e15c..8006a3c0 100644
--- a/tests/auto/concurrent/qtconcurrentrun/tst_qtconcurrentrun.cpp
+++ b/tests/auto/concurrent/qtconcurrentrun/tst_qtconcurrentrun.cpp
@@ -815,7 +815,7 @@ public:
     void run() override {
         int iter = 60;
         while (--iter && !cancel.loadRelaxed())
-            QThread::currentThread()->msleep(25);
+            QThread::currentThread()->sleep(std::chrono::milliseconds{25});
     }
 };
 
diff --git a/tests/auto/corelib/CMakeLists.txt b/tests/auto/corelib/CMakeLists.txt
index c90eb0f1..7654fe0c 100644
--- a/tests/auto/corelib/CMakeLists.txt
+++ b/tests/auto/corelib/CMakeLists.txt
@@ -6,6 +6,7 @@ if(NOT UIKIT)
     add_subdirectory(animation)
     add_subdirectory(global)
     add_subdirectory(io)
+    add_subdirectory(ipc)
     add_subdirectory(itemmodels)
     add_subdirectory(mimetypes)
     add_subdirectory(plugin)
diff --git a/tests/auto/corelib/animation/qpauseanimation/tst_qpauseanimation.cpp b/tests/auto/corelib/animation/qpauseanimation/tst_qpauseanimation.cpp
index 8457571b..90357ef4 100644
--- a/tests/auto/corelib/animation/qpauseanimation/tst_qpauseanimation.cpp
+++ b/tests/auto/corelib/animation/qpauseanimation/tst_qpauseanimation.cpp
@@ -12,7 +12,7 @@
 
 #include <private/qabstractanimation_p.h>
 
-#if defined(Q_OS_WIN) || defined(Q_OS_ANDROID)
+#if defined(Q_OS_WIN) || defined(Q_OS_ANDROID) || defined(Q_OS_QNX)
 #  define BAD_TIMER_RESOLUTION
 #endif
 
diff --git a/tests/auto/corelib/global/CMakeLists.txt b/tests/auto/corelib/global/CMakeLists.txt
index 68574c39..2204f82b 100644
--- a/tests/auto/corelib/global/CMakeLists.txt
+++ b/tests/auto/corelib/global/CMakeLists.txt
@@ -21,3 +21,4 @@ add_subdirectory(qglobalstatic)
 add_subdirectory(qhooks)
 add_subdirectory(qoperatingsystemversion)
 add_subdirectory(qxp)
+add_subdirectory(q20)
diff --git a/tests/auto/corelib/global/q20/CMakeLists.txt b/tests/auto/corelib/global/q20/CMakeLists.txt
new file mode 100644
index 00000000..bd28f8b9
--- /dev/null
+++ b/tests/auto/corelib/global/q20/CMakeLists.txt
@@ -0,0 +1 @@
+add_subdirectory(memory)
diff --git a/tests/auto/corelib/global/q20/memory/CMakeLists.txt b/tests/auto/corelib/global/q20/memory/CMakeLists.txt
new file mode 100644
index 00000000..f928f75b
--- /dev/null
+++ b/tests/auto/corelib/global/q20/memory/CMakeLists.txt
@@ -0,0 +1,10 @@
+# Copyright (C) 2022 The Qt Company Ltd.
+# SPDX-License-Identifier: BSD-3-Clause
+
+qt_internal_add_test(tst_q20_memory
+    EXCEPTIONS
+    SOURCES
+        tst_q20_memory.cpp
+    LIBRARIES
+        Qt::Core
+)
diff --git a/tests/auto/corelib/global/q20/memory/tst_q20_memory.cpp b/tests/auto/corelib/global/q20/memory/tst_q20_memory.cpp
new file mode 100644
index 00000000..e6da7b5c
--- /dev/null
+++ b/tests/auto/corelib/global/q20/memory/tst_q20_memory.cpp
@@ -0,0 +1,161 @@
+// Copyright (C) 2020 Klarälvdalens Datakonsult AB, a KDAB Group company, info@kdab.com, author Marc Mutz <marc.mutz@kdab.com>
+// Copyright (C) 2022 The Qt Company Ltd.
+// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only WITH Qt-GPL-exception-1.0
+
+
+#include <q20memory.h>
+#include <QtCore/q20memory.h>
+
+#include <QTest>
+#include <QObject>
+#include <QExplicitlySharedDataPointer>
+#include <QSharedDataPointer>
+
+struct Private : QSharedData {};
+
+class tst_q20_memory : public QObject
+{
+    Q_OBJECT
+
+private Q_SLOTS:
+    void raw();
+    void smart();
+    void recursion();
+    void usesPointerTraits();
+    void prefersPointerTraits();
+
+private Q_SLOTS:
+    void to_address_broken_const_propagation_QExplicitlySharedDataPointer()
+    { to_address_broken_const_propagation<QExplicitlySharedDataPointer<Private>>(); }
+    void to_address_broken_const_propagation_QSharedDataPointer()
+    { to_address_broken_const_propagation<QSharedDataPointer<Private>>(); }
+    void to_address_broken_const_propagation_shared_ptr()
+    { to_address_broken_const_propagation<std::shared_ptr<Private>>(); }
+    void to_address_broken_const_propagation_unique_ptr()
+    { to_address_broken_const_propagation<std::unique_ptr<Private>>(); }
+
+private:
+    template <typename Pointer>
+    void to_address_broken_const_propagation();
+};
+
+void tst_q20_memory::raw()
+{
+    auto i = 0;
+    auto p = &i;
+    QVERIFY(q20::to_address(p) == &i);
+}
+
+template <typename T>
+class MinimalPtr {
+public:
+    using element_type = T;
+
+    explicit MinimalPtr(T *d) : d(d) {}
+
+    T *operator->() const noexcept { return d; }
+
+private:
+    T *d;
+};
+
+void tst_q20_memory::smart()
+{
+    int i;
+    MinimalPtr ptr(&i);
+    QCOMPARE_EQ(q20::to_address(ptr), &i);
+}
+
+template <typename T>
+class RecursivePtr {
+public:
+    using element_type = T;
+
+    explicit RecursivePtr(T *d) : d(d) {}
+
+    MinimalPtr<T> operator->() const noexcept { return d; }
+
+private:
+    MinimalPtr<T> d;
+};
+
+void tst_q20_memory::recursion()
+{
+    int i;
+    RecursivePtr ptr(&i);
+    QCOMPARE_EQ(q20::to_address(ptr), &i);
+}
+
+template <typename T>
+class NoDerefOperatorPtr {
+public:
+    using element_type = T;
+
+    explicit NoDerefOperatorPtr(T *d) : d(d) {}
+
+    T *get() const noexcept { return d; }
+
+private:
+    T *d;
+};
+
+namespace std {
+template <typename T>
+struct pointer_traits<NoDerefOperatorPtr<T>>
+{
+    static T *to_address(const NoDerefOperatorPtr<T> &ptr) noexcept { return ptr.get(); }
+};
+} // namespace std
+
+void tst_q20_memory::usesPointerTraits()
+{
+    int i;
+    NoDerefOperatorPtr ptr(&i);
+    QCOMPARE_EQ(q20::to_address(ptr), &i);
+}
+
+template <typename T>
+class PrefersPointerTraitsPtr
+{
+public:
+    using element_type = T;
+
+    explicit PrefersPointerTraitsPtr(T *d) : d(d) {}
+
+    T *operator->() const noexcept { return nullptr; }
+
+    T *get() const noexcept { return d; }
+
+private:
+    T *d;
+};
+
+namespace std {
+template <typename T>
+struct pointer_traits<PrefersPointerTraitsPtr<T>>
+{
+    static T *to_address(const PrefersPointerTraitsPtr<T> &p) noexcept { return p.get(); }
+};
+} // namespace std
+
+void tst_q20_memory::prefersPointerTraits()
+{
+    int i;
+    PrefersPointerTraitsPtr ptr(&i);
+    QCOMPARE_EQ(q20::to_address(ptr), &i);
+}
+
+template <typename Pointer>
+void tst_q20_memory::to_address_broken_const_propagation()
+{
+    Pointer p(nullptr);
+    QCOMPARE_EQ(q20::to_address(p), nullptr);
+    p = Pointer{new Private()};
+    QCOMPARE_EQ(q20::to_address(p), p.operator->());
+    static_assert(std::is_same_v<decltype(q20::to_address(p)),
+                                 decltype(std::as_const(p).operator->())>);
+}
+
+QTEST_GUILESS_MAIN(tst_q20_memory)
+#include "tst_q20_memory.moc"
+
diff --git a/tests/auto/corelib/global/qflags/tst_qflags.cpp b/tests/auto/corelib/global/qflags/tst_qflags.cpp
index f267fc44..c3f69846 100644
--- a/tests/auto/corelib/global/qflags/tst_qflags.cpp
+++ b/tests/auto/corelib/global/qflags/tst_qflags.cpp
@@ -301,7 +301,7 @@ Q_DECLARE_FLAGS( MyStrictNoOpFlags, MyStrictNoOpEnum )
 
 static_assert( !QTypeInfo<MyStrictFlags>::isComplex );
 static_assert( QTypeInfo<MyStrictFlags>::isRelocatable );
-static_assert( !QTypeInfo<MyStrictFlags>::isPointer );
+static_assert( !std::is_pointer_v<MyStrictFlags> );
 
 void tst_QFlags::classEnum()
 {
@@ -475,7 +475,7 @@ Q_DECLARE_OPERATORS_FOR_FLAGS( MyFlags )
 
 static_assert( !QTypeInfo<MyFlags>::isComplex );
 static_assert( QTypeInfo<MyFlags>::isRelocatable );
-static_assert( !QTypeInfo<MyFlags>::isPointer );
+static_assert( !std::is_pointer_v<MyFlags> );
 
 QTEST_MAIN(tst_QFlags)
 #include "tst_qflags.moc"
diff --git a/tests/auto/corelib/global/qglobal/qglobal.c b/tests/auto/corelib/global/qglobal/qglobal.c
index abe6ec4f..5817d6ca 100644
--- a/tests/auto/corelib/global/qglobal/qglobal.c
+++ b/tests/auto/corelib/global/qglobal/qglobal.c
@@ -3,6 +3,7 @@
 
 #include <QtCore/qglobal.h>
 #include <QtCore/qtversion.h>
+#include <QtCore/qtypes.h>
 
 #ifdef Q_COMPILER_THREAD_LOCAL
 #  include <threads.h>
@@ -44,8 +45,20 @@ void tst_GlobalTypes()
     qintptr qip;
     quintptr qup;
     Q_UNUSED(qs); Q_UNUSED(qp); Q_UNUSED(qip); Q_UNUSED(qup);
+
+#ifdef QT_SUPPORTS_INT128
+    qint128 s128;
+    quint128 u128;
+    Q_UNUSED(s128); Q_UNUSED(u128);
+#endif /* QT_SUPPORTS_INT128 */
 }
 
+#if QT_SUPPORTS_INT128
+qint128 tst_qint128_min() { return Q_INT128_MIN + 0; }
+qint128 tst_qint128_max() { return 0 + Q_INT128_MAX; }
+quint128 tst_quint128_max() { return Q_UINT128_MAX - 1 + 1; }
+#endif
+
 /* Qt version */
 int tst_QtVersion()
 {
diff --git a/tests/auto/corelib/global/qglobal/tst_qglobal.cpp b/tests/auto/corelib/global/qglobal/tst_qglobal.cpp
index 3f4e903a..bc96c0d9 100644
--- a/tests/auto/corelib/global/qglobal/tst_qglobal.cpp
+++ b/tests/auto/corelib/global/qglobal/tst_qglobal.cpp
@@ -10,8 +10,49 @@
 #include <QString>
 #include <QtVersion>
 
+#include <array>
 #include <cmath>
 
+QT_BEGIN_NAMESPACE
+namespace QTest {
+#ifdef QT_SUPPORTS_INT128
+namespace detail {
+    char *i128ToStringHelper(std::array<char, 64> &buffer, quint128 n)
+    {
+        auto dst = buffer.data() + buffer.size();
+        *--dst = '\0'; // NUL-terminate
+        if (n == 0) {
+            *--dst = '0'; // and done
+        } else {
+            while (n != 0) {
+                *--dst = "0123456789"[n % 10];
+                n /= 10;
+            }
+        }
+        return dst;
+    }
+}
+template <>
+char *toString(const qint128 &i)
+{
+    if (i == std::numeric_limits<qint128>::min()) // -i is not representable, hardcode:
+        return qstrdup("-170141183460469231731687303715884105728");
+    std::array<char, 64> buffer;
+    auto dst = detail::i128ToStringHelper(buffer, i < 0 ? -i : i);
+    if (i < 0)
+        *--dst = '-';
+    return qstrdup(dst);
+}
+template <>
+char *toString(const quint128 &i)
+{
+    std::array<char, 64> buffer;
+    return qstrdup(detail::i128ToStringHelper(buffer, i));
+}
+#endif // QT_SUPPORTS_INT128
+} // namespace QTest
+QT_END_NAMESPACE
+
 class tst_QGlobal: public QObject
 {
     Q_OBJECT
@@ -28,6 +69,7 @@ private slots:
     void qCoreAppStartupFunction();
     void qCoreAppStartupFunctionRestart();
     void integerForSize();
+    void int128Literals();
     void buildAbiEndianness();
     void testqOverload();
     void testqMinMax();
@@ -37,12 +79,19 @@ private slots:
     void qRoundDoubles();
     void PRImacros();
     void testqToUnderlying();
+    void nodiscardConstructor();
 };
 
 extern "C" {        // functions in qglobal.c
 void tst_GlobalTypes();
 int tst_QtVersion();
 const char *tst_qVersion();
+#if QT_SUPPORTS_INT128
+qint128 tst_qint128_min();
+qint128 tst_qint128_max();
+quint128 tst_quint128_max();
+#endif
+
 }
 
 void tst_QGlobal::cMode()
@@ -421,11 +470,166 @@ void tst_QGlobal::integerForSize()
     static_assert(sizeof(QIntegerForSize<2>::Signed) == 2);
     static_assert(sizeof(QIntegerForSize<4>::Signed) == 4);
     static_assert(sizeof(QIntegerForSize<8>::Signed) == 8);
+#ifdef QT_SUPPORTS_INT128
+    static_assert(sizeof(QIntegerForSize<16>::Signed) == 16);
+#endif
 
     static_assert(sizeof(QIntegerForSize<1>::Unsigned) == 1);
     static_assert(sizeof(QIntegerForSize<2>::Unsigned) == 2);
     static_assert(sizeof(QIntegerForSize<4>::Unsigned) == 4);
     static_assert(sizeof(QIntegerForSize<8>::Unsigned) == 8);
+#ifdef QT_SUPPORTS_INT128
+    static_assert(sizeof(QIntegerForSize<16>::Unsigned) == 16);
+#endif
+}
+
+void tst_QGlobal::int128Literals()
+{
+#ifdef QT_SUPPORTS_INT128
+#define COMPARE_EQ(lhs, rhs, Expected128) do { \
+        constexpr auto lhs_ = lhs; \
+        static_assert(std::is_same_v<std::remove_cv_t<decltype(lhs_)>, Expected128>); \
+        QCOMPARE_EQ(lhs_, rhs); \
+    } while (0)
+    COMPARE_EQ(Q_INT128_MIN, std::numeric_limits<qint128>::min(), qint128);
+    COMPARE_EQ(Q_INT128_MAX, std::numeric_limits<qint128>::max(), qint128);
+    COMPARE_EQ(Q_UINT128_MAX, std::numeric_limits<quint128>::max(), quint128);
+    QCOMPARE_EQ(tst_qint128_min(), Q_INT128_MIN);
+    QCOMPARE_EQ(tst_qint128_max(), Q_INT128_MAX);
+    QCOMPARE_EQ(tst_quint128_max(), Q_UINT128_MAX);
+    {
+        #define CHECK_S(x) COMPARE_EQ(Q_INT128_C(x), Q_INT64_C(x), qint128)
+        #define CHECK_U(x) COMPARE_EQ(Q_UINT128_C(x), Q_UINT64_C(x), quint128);
+        #define CHECK(x) do { CHECK_S(x); CHECK_U(x); } while (0)
+        // basics:
+        CHECK(0);
+        CHECK(1);
+        CHECK_S(-1);
+        QCOMPARE_EQ(Q_INT64_C(9223372036854775807), std::numeric_limits<qint64>::max());
+        CHECK(9223372036854775807); // LLONG_MAX
+        // Q_INT64_C(-9223372036854775808) gives -Wimplicitly-unsigned-literal on GCC, so use numeric_limits:
+        {
+            constexpr auto i = Q_INT128_C(-9223372036854775808); // LLONG_MIN
+            static_assert(std::is_same_v<decltype(i), const qint128>);
+            QCOMPARE_EQ(i, std::numeric_limits<qint64>::min());
+        }
+        // actual 128-bit numbers
+        {
+            constexpr auto i = Q_INT128_C( 9223372036854775808); // LLONG_MAX + 1
+            constexpr auto u = Q_UINT128_C(9223372036854775808); // LLONG_MAX + 1
+            static_assert(std::is_same_v<decltype(i), const qint128>);
+            static_assert(std::is_same_v<decltype(u), const quint128>);
+            QCOMPARE_EQ(i, qint128{ std::numeric_limits<qint64>::max()} + 1);
+            QCOMPARE_EQ(u, quint128{std::numeric_limits<qint64>::max()} + 1);
+        }
+        {
+            constexpr auto i = Q_INT128_C(-9223372036854775809); // LLONG_MIN - 1
+            static_assert(std::is_same_v<decltype(i), const qint128>);
+            QCOMPARE_EQ(i, qint128{std::numeric_limits<qint64>::min()} - 1);
+        }
+        {
+            constexpr auto i = Q_INT128_C( 18446744073709551616); // ULLONG_MAX + 1
+            constexpr auto u = Q_UINT128_C(18446744073709551616);
+            constexpr auto expected = qint128{1} << 64;
+            static_assert(std::is_same_v<decltype(i), const qint128>);
+            static_assert(std::is_same_v<decltype(expected), const qint128>);
+            static_assert(std::is_same_v<decltype(u), const quint128>);
+            QCOMPARE_EQ(i, expected);
+            QCOMPARE_EQ(u, quint128{expected});
+        }
+        {
+            // compilers don't let one write signed _MIN literals, so use MIN + 1:
+            // Q_INT128_C(-170141183460469231731687303715884105728) gives
+            //   ERROR: ~~~ outside range of representable values of type qint128
+            // This is because the unary minus is technically speaking not part of
+            // the literal, but called on the result of the literal.
+            constexpr auto i = Q_INT128_C(-170141183460469231731687303715884105727); // 128-bit MIN + 1
+            static_assert(std::is_same_v<decltype(i), const qint128>);
+            QCOMPARE_EQ(i, std::numeric_limits<qint128>::min() + 1);
+        }
+        {
+            constexpr auto i = Q_INT128_C( 170141183460469231731687303715884105727); // MAX
+            constexpr auto u = Q_UINT128_C(340282366920938463463374607431768211455); // UMAX
+            static_assert(std::is_same_v<decltype(i), const qint128>);
+            static_assert(std::is_same_v<decltype(u), const quint128>);
+            QCOMPARE_EQ(i, std::numeric_limits<qint128>::max());
+            QCOMPARE_EQ(u, std::numeric_limits<quint128>::max());
+            QCOMPARE_EQ(u, Q_UINT128_C(-1));
+        }
+
+        // binary literals:
+        CHECK(0b0);
+        CHECK(0b1);
+        CHECK_S(-0b1);
+        CHECK(0b01);
+        CHECK(0b10);
+        CHECK(0b1'1); // with digit separator
+        CHECK(0b0111'1111'1111'1111'1111'1111'1111'1111'1111'1111'1111'1111'1111'1111'1111'1111);
+        //bytes |---1---| |---2---| |---3---| |---4---| |---5---| |---6---| |---7---| |---8---|
+        {
+            //                        bytes: |---1---| |---2---| |---3---| |---4---| |---5---| |---6---| |---7---| |---8---| |---9---| |--10---| |--11---| |--12---| |--13---| |--14---| |--15---| |--16---|
+            constexpr auto i = Q_INT128_C( 0b0111'1111'1111'1111'1111'1111'1111'1111'1111'1111'1111'1111'1111'1111'1111'1111'1111'1111'1111'1111'1111'1111'1111'1111'1111'1111'1111'1111'1111'1111'1111'1111);
+            constexpr auto u = Q_UINT128_C(0b1111'1111'1111'1111'1111'1111'1111'1111'1111'1111'1111'1111'1111'1111'1111'1111'1111'1111'1111'1111'1111'1111'1111'1111'1111'1111'1111'1111'1111'1111'1111'1111);
+            static_assert(std::is_same_v<decltype(i), const qint128>);
+            static_assert(std::is_same_v<decltype(u), const quint128>);
+            QCOMPARE_EQ(i, std::numeric_limits<qint128>::max());
+            QCOMPARE_EQ(u, std::numeric_limits<quint128>::max());
+            QCOMPARE_EQ(u, Q_UINT128_C(-0b1));
+        }
+
+        // octal literals:
+        CHECK(00);
+        CHECK(01);
+        CHECK(02);
+        CHECK(03);
+        CHECK(04);
+        CHECK(05);
+        CHECK(06);
+        CHECK(07);
+        CHECK_S(-01);
+        CHECK(010);
+        CHECK_S(-01'0); // with digit separator
+        CHECK(07'7777'7777'7777'7777'7777); // LLONG_MAX
+        {
+            //                        bits: 120| 108|  96|  84|  72|  60|  48|  36|  24|  12|   0|
+            constexpr auto i = Q_INT128_C( 0177'7777'7777'7777'7777'7777'7777'7777'7777'7777'7777);
+            constexpr auto u = Q_UINT128_C(0377'7777'7777'7777'7777'7777'7777'7777'7777'7777'7777);
+            static_assert(std::is_same_v<decltype(i), const qint128>);
+            static_assert(std::is_same_v<decltype(u), const quint128>);
+            QCOMPARE_EQ(i, std::numeric_limits<qint128>::max());
+            QCOMPARE_EQ(u, std::numeric_limits<quint128>::max());
+            QCOMPARE_EQ(u, Q_UINT128_C(-01));
+        }
+
+        // hex literals:
+        CHECK(0x0);
+        CHECK(0x1);
+        CHECK(0x9);
+        CHECK(0xA);
+        CHECK(0xB);
+        CHECK(0xC);
+        CHECK(0xD);
+        CHECK(0xE);
+        CHECK(0x0F);
+        CHECK(0x10);
+        CHECK_S(-0x1);
+        CHECK_S(-0x1'0); // with digit separator
+        CHECK(0x7FFF'FFFF'FFFF'FFFF);
+        {
+            constexpr auto i = Q_INT128_C( 0x7FFF'FFFF'FFFF'FFFF'FFFF'FFFF'FFFF'FFFF);
+            constexpr auto u = Q_UINT128_C(0xFFFF'FFFF'FFFF'FFFF'FFFF'FFFF'FFFF'FFFF);
+            static_assert(std::is_same_v<decltype(i), const qint128>);
+            static_assert(std::is_same_v<decltype(u), const quint128>);
+            QCOMPARE_EQ(i, std::numeric_limits<qint128>::max());
+            QCOMPARE_EQ(u, std::numeric_limits<quint128>::max());
+            QCOMPARE_EQ(Q_UINT128_C(-1), u);
+        }
+    #undef CHECK
+    }
+#undef COMPARE_EQ
+#else
+    QSKIP("This test requires 128-bit integer support enabled in the compiler.");
+#endif
 }
 
 typedef QPair<const char *, const char *> stringpair;
@@ -691,5 +895,25 @@ void tst_QGlobal::testqToUnderlying()
     QCOMPARE(qToUnderlying(EE2), 456UL);
 }
 
+void tst_QGlobal::nodiscardConstructor()
+{
+    // Syntax-only test, just to make sure that Q_NODISCARD_CTOR compiles
+    // on all platforms.
+    // Other code is just to silence all various compiler warnings about
+    // unused private members or methods.
+    class Test {
+    public:
+        Q_NODISCARD_CTOR explicit Test(int val) : m_val(val) {}
+
+        int get() const { return m_val; }
+
+    private:
+        int m_val;
+    };
+
+    Test t{42};
+    QCOMPARE(t.get(), 42);
+}
+
 QTEST_APPLESS_MAIN(tst_QGlobal)
 #include "tst_qglobal.moc"
diff --git a/tests/auto/corelib/io/CMakeLists.txt b/tests/auto/corelib/io/CMakeLists.txt
index 4100ce17..22eb2148 100644
--- a/tests/auto/corelib/io/CMakeLists.txt
+++ b/tests/auto/corelib/io/CMakeLists.txt
@@ -64,3 +64,6 @@ endif()
 if(QT_FEATURE_settings AND TARGET Qt::Gui)
     add_subdirectory(qsettings)
 endif()
+if(QT_FEATURE_private_tests)
+    add_subdirectory(qzip)
+endif()
diff --git a/tests/auto/corelib/io/largefile/tst_largefile.cpp b/tests/auto/corelib/io/largefile/tst_largefile.cpp
index a9108c57..b09d6b6f 100644
--- a/tests/auto/corelib/io/largefile/tst_largefile.cpp
+++ b/tests/auto/corelib/io/largefile/tst_largefile.cpp
@@ -37,9 +37,7 @@ public:
         , fd_(-1)
         , stream_(0)
     {
-    #if defined(QT_LARGEFILE_SUPPORT) && !defined(Q_OS_MAC) && !defined(Q_OS_QNX)
-        maxSizeBits = 36; // 64 GiB
-    #elif defined(Q_OS_MAC)
+    #if defined(Q_OS_DARWIN)
         // HFS+ does not support sparse files, so we limit file size for the test
         // on Mac OS.
         maxSizeBits = 24; // 16 MiB
@@ -48,6 +46,8 @@ public:
         // This means that files are limited to 2 GB − 1 bytes.
         // Limit max size to 256MB
         maxSizeBits = 28; // 256 MiB
+    #elif defined(QT_LARGEFILE_SUPPORT)
+        maxSizeBits = 36; // 64 GiB
     #else
         maxSizeBits = 24; // 16 MiB
     #endif
diff --git a/tests/auto/corelib/io/qabstractfileengine/tst_qabstractfileengine.cpp b/tests/auto/corelib/io/qabstractfileengine/tst_qabstractfileengine.cpp
index 8f91ebe1..b0936440 100644
--- a/tests/auto/corelib/io/qabstractfileengine/tst_qabstractfileengine.cpp
+++ b/tests/auto/corelib/io/qabstractfileengine/tst_qabstractfileengine.cpp
@@ -215,6 +215,8 @@ public:
                 return QLatin1String("AbsolutePathName");
             case AbsoluteLinkTarget:
                 return QLatin1String("AbsoluteLinkTarget");
+            case RawLinkPath:
+                return QLatin1String("RawLinkPath");
             case CanonicalName:
                 return QLatin1String("CanonicalName");
             case CanonicalPathName:
diff --git a/tests/auto/corelib/io/qdebug/tst_qdebug.cpp b/tests/auto/corelib/io/qdebug/tst_qdebug.cpp
index a54018c3..37bb6aa6 100644
--- a/tests/auto/corelib/io/qdebug/tst_qdebug.cpp
+++ b/tests/auto/corelib/io/qdebug/tst_qdebug.cpp
@@ -16,6 +16,8 @@
 #include <QMimeDatabase>
 #include <QMetaType>
 
+#include <q20chrono.h>
+
 #ifdef __cpp_lib_memory_resource
 # include <memory_resource>
 namespace pmr = std::pmr;
@@ -23,6 +25,8 @@ namespace pmr = std::pmr;
 namespace pmr = std;
 #endif
 
+using namespace std::chrono;
+using namespace q20::chrono;
 using namespace Qt::StringLiterals;
 
 static_assert(QTypeTraits::has_ostream_operator_v<QDebug, int>);
@@ -83,6 +87,8 @@ private slots:
     void qDebugQByteArray() const;
     void qDebugQByteArrayView() const;
     void qDebugQFlags() const;
+    void qDebugStdChrono_data() const;
+    void qDebugStdChrono() const;
     void textStreamModifiers() const;
     void resetFormat() const;
     void defaultMessagehandler() const;
@@ -1102,6 +1108,107 @@ void tst_QDebug::qDebugQFlags() const
     QCOMPARE(s_msg, QString::fromLatin1("QFlags<tst_QDebug::FlagType>(EnumFlag1)"));
 }
 
+using ToStringFunction = std::function<QString()>;
+void tst_QDebug::qDebugStdChrono_data() const
+{
+    using attoseconds = duration<int64_t, std::atto>;
+    using femtoseconds = duration<int64_t, std::femto>;
+    using picoseconds = duration<int64_t, std::pico>;
+    using centiseconds = duration<int64_t, std::centi>;
+    using deciseconds = duration<int64_t, std::deci>;
+
+    using quadriennia = duration<int, std::ratio_multiply<std::ratio<4>, years::period>>;
+    using decades = duration<int, std::ratio_multiply<years::period, std::deca>>; // decayears
+    using centuries = duration<int16_t, std::ratio_multiply<years::period, std::hecto>>; // hectoyears
+    using millennia = duration<int16_t, std::ratio_multiply<years::period, std::kilo>>; // kiloyears
+    using gigayears = duration<int8_t, std::ratio_multiply<years::period, std::giga>>;
+    using fortnights = duration<int, std::ratio_multiply<days::period, std::ratio<14>>>;
+    using microfortnights = duration<int64_t, std::ratio_multiply<fortnights::period, std::micro>>;
+    using telecom = duration<int64_t, std::ratio<1, 8000>>; // 8 kHz
+
+    using kiloseconds = duration<int64_t, std::kilo>;
+    using exaseconds = duration<int8_t, std::exa>;
+    using meter_per_light = duration<int64_t, std::ratio<1, 299'792'458>>;
+    using kilometer_per_light = duration<int64_t, std::ratio<1000, 299'792'458>>;
+
+    QTest::addColumn<ToStringFunction>("fn");
+    QTest::addColumn<QString>("expected");
+
+    auto addRow = [](const char *name, auto duration, const char *expected) {
+        auto toString = [duration]() { return QDebug::toString(duration); };
+        QTest::newRow(name) << ToStringFunction(toString) << expected;
+    };
+
+    addRow("1as", attoseconds{1}, "1as");
+    addRow("1fs", femtoseconds{1}, "1fs");
+    addRow("1ps", picoseconds{1}, "1ps");
+    addRow("0ns", 0ns, "0ns");
+    addRow("1000ns", 1000ns, "1000ns");
+    addRow("0us", 0us, "0us");
+    addRow("0ms", 0ms, "0ms");
+    addRow("1cs", centiseconds{1}, "1cs");
+    addRow("2ds", deciseconds{2}, "2ds");
+    addRow("-1s", -1s, "-1s");
+    addRow("0s", 0s, "0s");
+    addRow("1s", 1s, "1s");
+    addRow("60s", 60s, "60s");
+    addRow("1min", 1min, "1min");
+    addRow("1h", 1h, "1h");
+    addRow("1days", days{1}, "1d");
+    addRow("365days", days{365}, "365d");
+    addRow("1weeks", weeks{1}, "1wk");
+    addRow("1years", years{1}, "1yr"); // 365.2425 days
+    addRow("42years", years{42}, "42yr");
+
+    addRow("1ks", kiloseconds{1}, "1[1000]s");
+    addRow("2fortnights", fortnights{2}, "2[2]wk");
+    addRow("1quadriennia", quadriennia{1}, "1[4]yr");
+    addRow("1decades", decades{1}, "1[10]yr");
+    addRow("1centuries", centuries{1}, "1[100]yr");
+    addRow("1millennia", millennia{1}, "1[1000]yr");
+#if defined(Q_OS_LINUX) || defined(Q_OS_DARWIN)
+    // some OSes print the exponent differently
+    addRow("1Es", exaseconds{1}, "1[1e+18]s");
+    addRow("13gigayears", gigayears{13}, "13[1e+09]yr");
+#endif
+
+    // months are one twelfth of a Gregorian year, not 30 days
+    addRow("1months", months{1}, "1[2629746]s");
+
+    // weird units
+    addRow("2microfortnights", microfortnights{2}, "2[756/625]s");
+    addRow("1telecom", telecom{1}, "1[1/8000]s");
+    addRow("10m/c", meter_per_light{10}, "10[1/299792458]s");
+    addRow("10km/c", kilometer_per_light{10}, "10[500/149896229]s");
+
+    // real floting point
+    using fpsec = duration<double>;
+    using fpmsec = duration<double, std::milli>;
+    using fpnsec = duration<double, std::nano>;
+    addRow("1.0s", fpsec{1}, "1s");
+    addRow("1.5s", fpsec{1.5}, "1.5s");
+    addRow("1.0ms", fpmsec{1}, "1ms");
+    addRow("1.5ms", fpmsec{1.5}, "1.5ms");
+    addRow("1.0ns", fpnsec{1}, "1ns");
+    addRow("1.5ns", fpnsec{1.5}, "1.5ns");
+
+    // and some precision setting too
+    QTest::newRow("1.00000ns")
+            << ToStringFunction([]() {
+        QString buffer;
+        QDebug d(&buffer);
+        d.nospace() << qSetRealNumberPrecision(5) << Qt::fixed << fpnsec{1};
+        return buffer;
+    }) << "1.00000ns";
+}
+
+void tst_QDebug::qDebugStdChrono() const
+{
+    QFETCH(ToStringFunction, fn);
+    QFETCH(QString, expected);
+    QCOMPARE(fn(), expected);
+}
+
 void tst_QDebug::textStreamModifiers() const
 {
     QString file, function;
diff --git a/tests/auto/corelib/io/qdir/tst_qdir.cpp b/tests/auto/corelib/io/qdir/tst_qdir.cpp
index 65a7daaf..d7b0d2b1 100644
--- a/tests/auto/corelib/io/qdir/tst_qdir.cpp
+++ b/tests/auto/corelib/io/qdir/tst_qdir.cpp
@@ -12,7 +12,6 @@
 #include <qdebug.h>
 #include <qdir.h>
 #include <qfileinfo.h>
-#include <qscopedvaluerollback.h>
 #include <qstringlist.h>
 
 #if defined(Q_OS_WIN)
@@ -40,7 +39,6 @@
 
 #ifdef Q_OS_WIN
 #define DRIVE "Q:"
-extern Q_CORE_EXPORT int qt_ntfs_permission_lookup;
 #else
 #define DRIVE
 #endif
@@ -453,8 +451,7 @@ void tst_QDir::mkdirWithPermissions()
     QFETCH(QFile::Permissions, permissions);
 
 #ifdef Q_OS_WIN
-    QScopedValueRollback<int> ntfsMode(qt_ntfs_permission_lookup);
-    ++qt_ntfs_permission_lookup;
+    QNtfsPermissionCheckGuard permissionGuard;
 #endif
 #ifdef Q_OS_UNIX
     auto restoreMask = qScopeGuard([oldMask = umask(0)] { umask(oldMask); });
@@ -796,6 +793,12 @@ void tst_QDir::entryListWithTestFiles_data()
     QTest::newRow("QDir::AllEntries") << (m_dataPath + "/entrylist/") << QStringList("*")
                               << int(QDir::AllEntries) << int(QDir::Name)
                               << filterLinks(QString(".,..,directory,file,linktodirectory.lnk,linktofile.lnk,writable").split(','));
+    // Tests an assert in QDirSortItemComparator, when QDir::LocaleAware is set
+    // a QCollator is used
+    QTest::newRow("QDir::AllEntries")
+        << (m_dataPath + "/entrylist/") << QStringList("*")
+        << int(QDir::AllEntries) << int(QDir::Name | QDir::LocaleAware)
+        << filterLinks(QString(".,..,directory,file,linktodirectory.lnk,linktofile.lnk,writable").split(','));
     QTest::newRow("QDir::Files") << (m_dataPath + "/entrylist/") << QStringList("*")
                                  << int(QDir::Files) << int(QDir::Name)
                                  << filterLinks(QString("file,linktofile.lnk,writable").split(','));
@@ -999,7 +1002,7 @@ void tst_QDir::entryListTimedSort()
 
     QFileInfo aFileInfo(aFile);
     QFileInfo bFileInfo(bFile);
-    QVERIFY(bFileInfo.lastModified().msecsTo(aFileInfo.lastModified()) < 0);
+    QVERIFY(bFileInfo.lastModified(QTimeZone::UTC).msecsTo(aFileInfo.lastModified(QTimeZone::UTC)) < 0);
 
     QCOMPARE(actual.size(), 2);
     QCOMPARE(actual.first(), bFileInfo.fileName());
@@ -1618,7 +1621,7 @@ void tst_QDir::rename()
     QDir dir;
     QVERIFY(dir.rename("rename-test", "rename-test-renamed"));
     QVERIFY(dir.rename("rename-test-renamed", "rename-test"));
-#if defined(Q_OS_MAC)
+#if defined(Q_OS_DARWIN)
     QVERIFY(!dir.rename("rename-test", "/etc/rename-test-renamed"));
 #elif !defined(Q_OS_WIN)
     // on windows this is possible - maybe make the test a bit better
diff --git a/tests/auto/corelib/io/qfile/tst_qfile.cpp b/tests/auto/corelib/io/qfile/tst_qfile.cpp
index 079553cf..2f124a34 100644
--- a/tests/auto/corelib/io/qfile/tst_qfile.cpp
+++ b/tests/auto/corelib/io/qfile/tst_qfile.cpp
@@ -13,6 +13,7 @@
 #include <QDir>
 #include <QFile>
 #include <QFileInfo>
+#include <QRandomGenerator>
 #include <QTemporaryDir>
 #include <QTemporaryFile>
 #include <QOperatingSystemVersion>
@@ -48,7 +49,7 @@ QT_END_NAMESPACE
 # include <unistd.h>
 # include <private/qcore_unix_p.h>
 #endif
-#ifdef Q_OS_MAC
+#ifdef Q_OS_DARWIN
 # include <sys/mount.h>
 #elif defined(Q_OS_LINUX)
 # include <sys/vfs.h>
@@ -171,6 +172,9 @@ private slots:
 #ifdef Q_OS_WIN
     void permissionsNtfs_data();
     void permissionsNtfs();
+#if QT_DEPRECATED_SINCE(6,6)
+    void deprecatedNtfsPermissionCheck();
+#endif
 #endif
     void setPermissions_data();
     void setPermissions();
@@ -224,6 +228,8 @@ private slots:
 #ifdef Q_OS_UNIX
     void unixPipe_data();
     void unixPipe();
+    void unixFifo_data() { unixPipe_data(); }
+    void unixFifo();
     void socketPair_data() { unixPipe_data(); }
     void socketPair();
 #endif
@@ -1267,8 +1273,7 @@ void tst_QFile::createFilePermissions()
     QFETCH(QFile::Permissions, permissions);
 
 #ifdef Q_OS_WIN
-    QScopedValueRollback<int> ntfsMode(qt_ntfs_permission_lookup);
-    ++qt_ntfs_permission_lookup;
+    QNtfsPermissionCheckGuard permissionGuard;
 #endif
 #ifdef Q_OS_UNIX
     auto restoreMask = qScopeGuard([oldMask = umask(0)] { umask(oldMask); });
@@ -1392,7 +1397,7 @@ void tst_QFile::permissions()
     }
 
 #if defined(Q_OS_WIN)
-    if (qt_ntfs_permission_lookup)
+    if (qAreNtfsPermissionChecksEnabled())
         QEXPECT_FAIL("readonly", "QTBUG-25630", Abort);
 #endif
 #ifdef Q_OS_UNIX
@@ -1414,10 +1419,26 @@ void tst_QFile::permissionsNtfs_data()
 
 void tst_QFile::permissionsNtfs()
 {
-    QScopedValueRollback<int> ntfsMode(qt_ntfs_permission_lookup);
-    qt_ntfs_permission_lookup++;
+    QNtfsPermissionCheckGuard permissionGuard;
     permissions();
 }
+
+QT_WARNING_PUSH
+QT_WARNING_DISABLE_DEPRECATED
+#if QT_DEPRECATED_SINCE(6,6)
+void tst_QFile::deprecatedNtfsPermissionCheck()
+{
+    QScopedValueRollback<int> guard(qt_ntfs_permission_lookup);
+
+    QCOMPARE(qAreNtfsPermissionChecksEnabled(), false);
+    qt_ntfs_permission_lookup++;
+    QCOMPARE(qAreNtfsPermissionChecksEnabled(), true);
+    qt_ntfs_permission_lookup--;
+    QCOMPARE(qAreNtfsPermissionChecksEnabled(), false);
+}
+#endif
+QT_WARNING_POP
+
 #endif
 
 void tst_QFile::setPermissions_data()
@@ -2657,6 +2678,57 @@ void tst_QFile::unixPipe()
     qt_safe_close(pipes[1]);
 }
 
+void tst_QFile::unixFifo()
+{
+    QByteArray fifopath = []() -> QByteArray {
+        QByteArray dir = qgetenv("XDG_RUNTIME_DIR");
+        if (dir.isEmpty())
+            dir = QFile::encodeName(QDir::tempPath());
+
+        // try to create a FIFO
+        for (int attempts = 10; attempts; --attempts) {
+            QByteArray fifopath = dir + "/tst_qfile_fifo." +
+                    QByteArray::number(QRandomGenerator::global()->generate());
+            int ret = mkfifo(fifopath, 0600);
+            if (ret == 0)
+                return fifopath;
+        }
+
+        qWarning("Failed to create a FIFO at %s; last error was %s",
+                 dir.constData(), strerror(errno));
+        return {};
+    }();
+    if (fifopath.isEmpty())
+        return;
+
+    auto removeFifo = qScopeGuard([&fifopath] { unlink(fifopath); });
+
+    // with a FIFO, the two open() system calls synchronize
+    QScopedPointer<QThread> thr(QThread::create([&fifopath]() {
+        int fd = qt_safe_open(fifopath, O_WRONLY);
+        QTest::qSleep(500);
+        char c = 2;
+        qt_safe_write(fd, &c, 1);
+        qt_safe_close(fd);
+    }));
+    thr->start();
+
+    QFETCH(bool, useStdio);
+    QFile f;
+    if (useStdio) {
+        FILE *fh = fopen(fifopath, "rb");
+        QVERIFY(f.open(fh, QIODevice::ReadOnly | QIODevice::Unbuffered, QFileDevice::AutoCloseHandle));
+    } else {
+        f.setFileName(QFile::decodeName(fifopath));
+        QVERIFY(f.open(QIODevice::ReadOnly | QIODevice::Unbuffered));
+    }
+
+    char c = 0;
+    QCOMPARE(f.read(&c, 1), 1);         // this ought to block
+    QCOMPARE(c, '\2');
+    thr->wait();
+}
+
 void tst_QFile::socketPair()
 {
     int pipes[2] = { -1, -1 };
@@ -3587,7 +3659,7 @@ void tst_QFile::caseSensitivity()
 {
 #if defined(Q_OS_WIN)
     const bool caseSensitive = false;
-#elif defined(Q_OS_MAC)
+#elif defined(Q_OS_DARWIN)
      const bool caseSensitive = pathconf(QDir::currentPath().toLatin1().constData(), _PC_CASE_SENSITIVE);
 #else
     const bool caseSensitive = true;
diff --git a/tests/auto/corelib/io/qfileinfo/tst_qfileinfo.cpp b/tests/auto/corelib/io/qfileinfo/tst_qfileinfo.cpp
index 15467bc0..84f7095d 100644
--- a/tests/auto/corelib/io/qfileinfo/tst_qfileinfo.cpp
+++ b/tests/auto/corelib/io/qfileinfo/tst_qfileinfo.cpp
@@ -4,7 +4,6 @@
 #include <QTest>
 #include <QStandardPaths>
 #include <QScopeGuard>
-#include <QScopedValueRollback>
 
 #include <qfile.h>
 #include <qdir.h>
@@ -43,9 +42,6 @@
 #endif
 
 #if defined(Q_OS_WIN)
-QT_BEGIN_NAMESPACE
-extern Q_CORE_EXPORT int qt_ntfs_permission_lookup;
-QT_END_NAMESPACE
 bool IsUserAdmin();
 #endif
 
@@ -205,7 +201,7 @@ private slots:
 
     void isHidden_data();
     void isHidden();
-#if defined(Q_OS_MAC)
+#if defined(Q_OS_DARWIN)
     void isHiddenFromFinder();
 #endif
 
@@ -242,6 +238,7 @@ private slots:
     void nonExistingFile();
 
     void stdfilesystem();
+    void readSymLink();
 
 private:
     const QString m_currentDir;
@@ -765,7 +762,7 @@ void tst_QFileInfo::bundleName_data()
 
     QTest::newRow("root") << "/" << "";
     QTest::newRow("etc") << "/etc" << "";
-#ifdef Q_OS_MAC
+#ifdef Q_OS_DARWIN
     QTest::newRow("safari") << "/Applications/Safari.app" << "Safari";
 #endif
 }
@@ -1022,7 +1019,7 @@ void tst_QFileInfo::compare_data()
         << m_sourceFile
 #if defined(Q_OS_WIN)
         << true;
-#elif defined(Q_OS_MAC)
+#elif defined(Q_OS_DARWIN)
         << !pathconf(QDir::currentPath().toLatin1().constData(), _PC_CASE_SENSITIVE);
 #else
         << false;
@@ -1031,7 +1028,7 @@ void tst_QFileInfo::compare_data()
 
 void tst_QFileInfo::compare()
 {
-#if defined(Q_OS_MAC)
+#if defined(Q_OS_DARWIN)
     if (qstrcmp(QTest::currentDataTag(), "casesense1") == 0)
         QSKIP("Qt thinks all UNIX filesystems are case sensitive, see QTBUG-28246");
 #endif
@@ -1108,8 +1105,8 @@ void tst_QFileInfo::fileTimes()
     {
         // try to guess if file times on this filesystem round to the second
         QFileInfo cwd(".");
-        if (cwd.lastModified().toMSecsSinceEpoch() % 1000 == 0
-                && cwd.lastRead().toMSecsSinceEpoch() % 1000 == 0) {
+        if (cwd.lastModified(QTimeZone::UTC).toMSecsSinceEpoch() % 1000 == 0
+                && cwd.lastRead(QTimeZone::UTC).toMSecsSinceEpoch() % 1000 == 0) {
             fsClockSkew = sleepTime = 1000;
 
             noAccessTime = qIsLikelyToBeFat(fileName);
@@ -1134,7 +1131,7 @@ void tst_QFileInfo::fileTimes()
         QFile file(fileName);
         QVERIFY(file.open(QFile::WriteOnly | QFile::Text));
         QFileInfo fileInfo(fileName);
-        birthTime = fileInfo.birthTime();
+        birthTime = fileInfo.birthTime(QTimeZone::UTC);
         QVERIFY2(!birthTime.isValid() || birthTime > beforeBirth,
                  datePairString(birthTime, beforeBirth));
 
@@ -1145,9 +1142,9 @@ void tst_QFileInfo::fileTimes()
     }
     {
         QFileInfo fileInfo(fileName);
-        writeTime = fileInfo.lastModified();
+        writeTime = fileInfo.lastModified(QTimeZone::UTC);
         QVERIFY2(writeTime > beforeWrite, datePairString(writeTime, beforeWrite));
-        QCOMPARE(fileInfo.birthTime(), birthTime); // mustn't have changed
+        QCOMPARE(fileInfo.birthTime(QTimeZone::UTC), birthTime); // mustn't have changed
     }
 
     // --- Change the file's metadata
@@ -1159,11 +1156,11 @@ void tst_QFileInfo::fileTimes()
     }
     {
         QFileInfo fileInfo(fileName);
-        metadataChangeTime = fileInfo.metadataChangeTime();
+        metadataChangeTime = fileInfo.metadataChangeTime(QTimeZone::UTC);
         QVERIFY2(metadataChangeTime > beforeMetadataChange,
                  datePairString(metadataChangeTime, beforeMetadataChange));
         QVERIFY(metadataChangeTime >= writeTime); // not all filesystems can store both times
-        QCOMPARE(fileInfo.birthTime(), birthTime); // mustn't have changed
+        QCOMPARE(fileInfo.birthTime(QTimeZone::UTC), birthTime); // mustn't have changed
     }
 
     // --- Read the file
@@ -1178,9 +1175,9 @@ void tst_QFileInfo::fileTimes()
     }
 
     QFileInfo fileInfo(fileName);
-    readTime = fileInfo.lastRead();
-    QCOMPARE(fileInfo.lastModified(), writeTime); // mustn't have changed
-    QCOMPARE(fileInfo.birthTime(), birthTime); // mustn't have changed
+    readTime = fileInfo.lastRead(QTimeZone::UTC);
+    QCOMPARE(fileInfo.lastModified(QTimeZone::UTC), writeTime); // mustn't have changed
+    QCOMPARE(fileInfo.birthTime(QTimeZone::UTC), birthTime); // mustn't have changed
     QVERIFY(readTime.isValid());
 
 #if defined(Q_OS_QNX) || defined(Q_OS_ANDROID)
@@ -1250,7 +1247,7 @@ void tst_QFileInfo::fakeFileTimes()
     file.close();
 
     if (ok)
-        QCOMPARE(QFileInfo(file.fileName()).lastModified(), when);
+        QCOMPARE(QFileInfo(file.fileName()).lastModified(QTimeZone::UTC), when);
     else
         QSKIP("Unable to set file metadata to contrived values");
 }
@@ -1538,14 +1535,14 @@ void tst_QFileInfo::isHidden_data()
     QTest::newRow("/path/to/.hidden-directory/..") << QDir::currentPath() + QString("/.hidden-directory/..") << true;
 #endif
 
-#if defined(Q_OS_MAC)
+#if defined(Q_OS_DARWIN)
     // /bin has the hidden attribute on OS X
     QTest::newRow("/bin/") << QString::fromLatin1("/bin/") << true;
 #elif !defined(Q_OS_WIN)
     QTest::newRow("/bin/") << QString::fromLatin1("/bin/") << false;
 #endif
 
-#ifdef Q_OS_MAC
+#ifdef Q_OS_DARWIN
     QTest::newRow("mac_etc") << QString::fromLatin1("/etc") << true;
     QTest::newRow("mac_private_etc") << QString::fromLatin1("/private/etc") << false;
     QTest::newRow("mac_Applications") << QString::fromLatin1("/Applications") << false;
@@ -1561,7 +1558,7 @@ void tst_QFileInfo::isHidden()
     QCOMPARE(fi.isHidden(), isHidden);
 }
 
-#if defined(Q_OS_MAC)
+#if defined(Q_OS_DARWIN)
 void tst_QFileInfo::isHiddenFromFinder()
 {
     const char *filename = "test_foobar.txt";
@@ -1587,7 +1584,7 @@ void tst_QFileInfo::isBundle_data()
     QTest::addColumn<QString>("path");
     QTest::addColumn<bool>("isBundle");
     QTest::newRow("root") << QString::fromLatin1("/") << false;
-#ifdef Q_OS_MAC
+#ifdef Q_OS_DARWIN
     QTest::newRow("mac_Applications") << QString::fromLatin1("/Applications") << false;
     QTest::newRow("mac_Applications") << QString::fromLatin1("/Applications/Safari.app") << true;
 #endif
@@ -1641,14 +1638,14 @@ void tst_QFileInfo::refresh()
     file.flush();
 
     QFileInfo info(file);
-    QDateTime lastModified = info.lastModified();
+    QDateTime lastModified = info.lastModified(QTimeZone::UTC);
     QCOMPARE(info.size(), qint64(7));
 
     QTest::qSleep(sleepTime);
 
     QCOMPARE(file.write("JOJOJO"), qint64(6));
     file.flush();
-    QCOMPARE(info.lastModified(), lastModified);
+    QCOMPARE(info.lastModified(QTimeZone::UTC), lastModified);
 
     QCOMPARE(info.size(), qint64(7));
 #if defined(Q_OS_WIN)
@@ -1656,7 +1653,7 @@ void tst_QFileInfo::refresh()
 #endif
     info.refresh();
     QCOMPARE(info.size(), qint64(13));
-    QVERIFY(info.lastModified() > lastModified);
+    QVERIFY(info.lastModified(QTimeZone::UTC) > lastModified);
 
     QFileInfo info2 = info;
     QCOMPARE(info2.size(), info.size());
@@ -1904,8 +1901,7 @@ void tst_QFileInfo::isWritable()
 #endif
 
 #if defined (Q_OS_WIN)
-    QScopedValueRollback<int> ntfsMode(qt_ntfs_permission_lookup);
-    qt_ntfs_permission_lookup = 1;
+    QNtfsPermissionCheckGuard permissionGuard;
     QFileInfo fi2(QFile::decodeName(qgetenv("SystemRoot") + "/system.ini"));
     QVERIFY(fi2.exists());
     QCOMPARE(fi2.isWritable(), IsUserAdmin());
@@ -2011,7 +2007,7 @@ private:
 
 void tst_QFileInfo::testDecomposedUnicodeNames()
 {
-#ifndef Q_OS_MAC
+#ifndef Q_OS_DARWIN
     QSKIP("This is a OS X only test (unless you know more about filesystems, then maybe you should try it ;)");
 #else
     QFETCH(QString, filePath);
@@ -2155,7 +2151,7 @@ void tst_QFileInfo::owner()
                 NetApiBufferFree(pBuf);
         }
     }
-    qt_ntfs_permission_lookup = 1;
+    QNtfsPermissionCheckGuard permissionGuard;
 #endif
     if (userName.isEmpty())
         QSKIP("Can't retrieve the user name");
@@ -2172,9 +2168,6 @@ void tst_QFileInfo::owner()
     QCOMPARE(fi.owner(), userName);
 
     QFile::remove(fileName);
-#if defined(Q_OS_WIN)
-    qt_ntfs_permission_lookup = 0;
-#endif
 }
 
 void tst_QFileInfo::group()
@@ -2258,10 +2251,10 @@ static void stateCheck(const QFileInfo &info, const QString &dirname, const QStr
 
     QCOMPARE(info.permissions(), QFile::Permissions());
 
-    QVERIFY(!info.birthTime().isValid());
-    QVERIFY(!info.metadataChangeTime().isValid());
-    QVERIFY(!info.lastRead().isValid());
-    QVERIFY(!info.lastModified().isValid());
+    QVERIFY(!info.birthTime(QTimeZone::UTC).isValid());
+    QVERIFY(!info.metadataChangeTime(QTimeZone::UTC).isValid());
+    QVERIFY(!info.lastRead(QTimeZone::UTC).isValid());
+    QVERIFY(!info.lastModified(QTimeZone::UTC).isValid());
 };
 
 void tst_QFileInfo::invalidState_data()
@@ -2336,6 +2329,18 @@ void tst_QFileInfo::stdfilesystem()
         COMPARE_CONSTRUCTION("./filæ.txt");
 #endif
 
+        // Test unicode strings
+        QCOMPARE(QFileInfo(fs::path(u"./filæ.txt")).absoluteFilePath(),
+                 QFileInfo(u"./filæ.txt"_s).absoluteFilePath());
+        QCOMPARE(QFileInfo(base, fs::path(u"./filæ.txt")).absoluteFilePath(),
+                 QFileInfo(base, u"./filæ.txt"_s).absoluteFilePath());
+#ifdef __cpp_char8_t
+        QCOMPARE(QFileInfo(fs::path(u8"./filæ.txt")).absoluteFilePath(),
+                 QFileInfo(u8"./filæ.txt").absoluteFilePath());
+        QCOMPARE(QFileInfo(base, fs::path(u8"./filæ.txt")).absoluteFilePath(),
+                 QFileInfo(base, u8"./filæ.txt").absoluteFilePath());
+#endif
+
 #undef COMPARE_CONSTRUCTION
         {
             // One proper comparison with operator== for each ctor
@@ -2396,5 +2401,20 @@ void tst_QFileInfo::stdfilesystem()
 #endif
 }
 
+void tst_QFileInfo::readSymLink()
+{
+    QString symLinkName("./a.link");
+    const auto tidier = qScopeGuard([symLinkName]() { QFile::remove(symLinkName); });
+
+#ifdef Q_OS_WIN
+    QVERIFY2(CreateSymbolicLink(L"a.link", L"..\\..\\a",   SYMBOLIC_LINK_FLAG_ALLOW_UNPRIVILEGED_CREATE)
+             != 0,
+             "Failed to create symlink for test");
+#else
+    QVERIFY2(QFile::link("../../a", symLinkName), "Failed to create symlink for test");
+#endif
+    QFileInfo info(symLinkName);
+    QCOMPARE(info.readSymLink(), QString("../../a"));
+}
 QTEST_MAIN(tst_QFileInfo)
 #include "tst_qfileinfo.moc"
diff --git a/tests/auto/corelib/io/qfilesystemwatcher/tst_qfilesystemwatcher.cpp b/tests/auto/corelib/io/qfilesystemwatcher/tst_qfilesystemwatcher.cpp
index dfdf4e05..8438e904 100644
--- a/tests/auto/corelib/io/qfilesystemwatcher/tst_qfilesystemwatcher.cpp
+++ b/tests/auto/corelib/io/qfilesystemwatcher/tst_qfilesystemwatcher.cpp
@@ -563,7 +563,7 @@ void tst_QFileSystemWatcher::watchFileAndItsDirectory()
     QVERIFY2(testFile.write(QByteArrayLiteral("hello again")), msgFileOperationFailed("write", testFile));
     testFile.close();
 
-#ifdef Q_OS_MAC
+#ifdef Q_OS_DARWIN
     // wait again for the file's atime to be updated
     QTest::qWait(2000);
 #endif
diff --git a/tests/auto/corelib/io/qlockfile/tst_qlockfile.cpp b/tests/auto/corelib/io/qlockfile/tst_qlockfile.cpp
index f36334db..1f26dc78 100644
--- a/tests/auto/corelib/io/qlockfile/tst_qlockfile.cpp
+++ b/tests/auto/corelib/io/qlockfile/tst_qlockfile.cpp
@@ -16,6 +16,8 @@
 #include <qsysinfo.h>
 #if defined(Q_OS_UNIX) && !defined(Q_OS_VXWORKS)
 #include <unistd.h>
+
+#include <sys/stat.h> // utimensat
 #include <sys/time.h>
 #elif defined(Q_OS_WIN)
 #  include <qt_windows.h>
@@ -24,6 +26,8 @@
 
 #include <private/qlockfile_p.h>  // for getLockFileHandle()
 
+using namespace std::chrono_literals;
+
 class tst_QLockFile : public QObject
 {
     Q_OBJECT
@@ -94,7 +98,7 @@ void tst_QLockFile::lockUnlock()
     QVERIFY(lockFile.getLockInfo(&pid, &hostname, &appname));
     QCOMPARE(pid, QCoreApplication::applicationPid());
     QCOMPARE(appname, qAppName());
-    QVERIFY(!lockFile.tryLock(200));
+    QVERIFY(!lockFile.tryLock(200ms));
     QCOMPARE(int(lockFile.error()), int(QLockFile::LockFailedError));
 
     // Unlock deletes the lock file
@@ -339,8 +343,8 @@ void tst_QLockFile::staleLongLockFromBusyProcess()
     QTRY_VERIFY(QFile::exists(fileName));
 
     QLockFile secondLock(fileName);
-    secondLock.setStaleLockTime(0);
-    QVERIFY(!secondLock.tryLock(100)); // never stale
+    secondLock.setStaleLockTime(0ms);
+    QVERIFY(!secondLock.tryLock(100ms)); // never stale
     QCOMPARE(int(secondLock.error()), int(QLockFile::LockFailedError));
     qint64 pid;
     QTRY_VERIFY(secondLock.getLockInfo(&pid, NULL, NULL));
@@ -508,15 +512,15 @@ void tst_QLockFile::corruptedLockFile()
     }
 
     QLockFile secondLock(fileName);
-    secondLock.setStaleLockTime(100);
-    QVERIFY(secondLock.tryLock(10000));
+    secondLock.setStaleLockTime(100ms);
+    QVERIFY(secondLock.tryLock(10s));
     QCOMPARE(int(secondLock.error()), int(QLockFile::NoError));
 }
 
 void tst_QLockFile::corruptedLockFileInTheFuture()
 {
 #if !defined(Q_OS_UNIX)
-    QSKIP("This tests needs utimes");
+    QSKIP("This test needs utimensat");
 #else
     // This test is the same as the previous one, but the corruption was so there is a corrupted
     // .rmlock whose timestamp is in the future
@@ -528,11 +532,12 @@ void tst_QLockFile::corruptedLockFileInTheFuture()
         QVERIFY(file.open(QFile::WriteOnly));
     }
 
-    struct timeval times[2];
-    gettimeofday(times, 0);
-    times[1].tv_sec = (times[0].tv_sec += 600);
-    times[1].tv_usec = times[0].tv_usec;
-    utimes(fileName.toLocal8Bit(), times);
+    struct timespec times[2];
+    clock_gettime(CLOCK_REALTIME, times);
+    times[0].tv_sec += 600;
+    times[1].tv_sec = times[0].tv_sec;
+    times[1].tv_nsec = times[0].tv_nsec;
+    utimensat(0 /* ignored */, fileName.toLocal8Bit(), times, 0);
 
     QTest::ignoreMessage(QtInfoMsg, "QLockFile: Lock file '" + fileName.toUtf8() + "' has a modification time in the future");
     corruptedLockFile();
@@ -561,7 +566,7 @@ void tst_QLockFile::hostnameChange()
     {
         // we should fail to lock
         QLockFile lock2(lockFile);
-        QVERIFY(!lock2.tryLock(1000));
+        QVERIFY(!lock2.tryLock(1s));
     }
 }
 
@@ -588,7 +593,7 @@ void tst_QLockFile::differentMachines()
     {
         // we should fail to lock
         QLockFile lock2(lockFile);
-        QVERIFY(!lock2.tryLock(1000));
+        QVERIFY(!lock2.tryLock(1s));
     }
 }
 
@@ -617,7 +622,7 @@ void tst_QLockFile::reboot()
     f.close();
 
     // we should succeed in locking
-    QVERIFY(lock1.tryLock(0));
+    QVERIFY(lock1.tryLock(0ms));
 }
 
 bool tst_QLockFile::overwritePidInLockFile(const QString &filePath, qint64 pid)
diff --git a/tests/auto/corelib/io/qprocess/CMakeLists.txt b/tests/auto/corelib/io/qprocess/CMakeLists.txt
index 016fcf66..9fbf7657 100644
--- a/tests/auto/corelib/io/qprocess/CMakeLists.txt
+++ b/tests/auto/corelib/io/qprocess/CMakeLists.txt
@@ -28,3 +28,6 @@ if(WIN32)
     add_subdirectory(testProcessEchoGui)
     add_subdirectory(testSetNamedPipeHandleState)
 endif()
+if(UNIX)
+    add_subdirectory(testUnixProcessParameters)
+endif()
diff --git a/tests/auto/corelib/io/qprocess/crasher.h b/tests/auto/corelib/io/qprocess/crasher.h
new file mode 100644
index 00000000..d34d6dd0
--- /dev/null
+++ b/tests/auto/corelib/io/qprocess/crasher.h
@@ -0,0 +1,58 @@
+// Copyright (C) 2016 The Qt Company Ltd.
+// Copyright (C) 2020 Intel Corporation.
+// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only WITH Qt-GPL-exception-1.0
+
+#if defined(_MSC_VER)
+#  include <intrin.h>
+#endif
+#if __has_include(<signal.h>)
+#  include <signal.h>
+#endif
+#if __has_include(<sys/resource.h>)
+#  include <sys/resource.h>
+#endif
+
+#ifndef __has_builtin
+#  define __has_builtin(x)  0
+#endif
+
+namespace tst_QProcessCrash {
+struct NoCoreDumps
+{
+#if defined(RLIMIT_CORE)
+    struct rlimit rlim;
+    NoCoreDumps()
+    {
+        if (getrlimit(RLIMIT_CORE, &rlim) == 0 && rlim.rlim_cur != 0) {
+            struct rlimit newrlim = rlim;
+            newrlim.rlim_cur = 0;
+            setrlimit(RLIMIT_CORE, &newrlim);
+        }
+    }
+    ~NoCoreDumps()
+    {
+        setrlimit(RLIMIT_CORE, &rlim);
+    }
+#endif // RLIMIT_CORE
+};
+
+void crashFallback(volatile int *ptr = nullptr)
+{
+    *ptr = 0;
+}
+
+void crash()
+{
+#if defined(_MSC_VER) && (defined(_M_IX86) || defined(_M_X64))
+    __ud2();
+#elif __has_builtin(__builtin_trap)
+    __builtin_trap();
+#elif defined(__GNUC__) && (defined(__i386__) || defined(__x86_64__))
+    asm("ud2");
+#elif defined(SIGILL)
+    raise(SIGILL);
+#endif
+
+    crashFallback();
+}
+} // namespace tst_QProcessCrash
diff --git a/tests/auto/corelib/io/qprocess/testExitCodes/CMakeLists.txt b/tests/auto/corelib/io/qprocess/testExitCodes/CMakeLists.txt
index b7f090c9..bc03f52d 100644
--- a/tests/auto/corelib/io/qprocess/testExitCodes/CMakeLists.txt
+++ b/tests/auto/corelib/io/qprocess/testExitCodes/CMakeLists.txt
@@ -7,6 +7,7 @@
 
 qt_internal_add_executable(testExitCodes
     OUTPUT_DIRECTORY "${CMAKE_CURRENT_BINARY_DIR}/"
+    CORE_LIBRARY None
     SOURCES
         main.cpp
 )
diff --git a/tests/auto/corelib/io/qprocess/testForwarding/main.cpp b/tests/auto/corelib/io/qprocess/testForwarding/main.cpp
index cc1bb816..43e196ab 100644
--- a/tests/auto/corelib/io/qprocess/testForwarding/main.cpp
+++ b/tests/auto/corelib/io/qprocess/testForwarding/main.cpp
@@ -13,7 +13,7 @@ static bool waitForDoneFileWritten(const QString &filePath, int msecs = 30000)
 {
     QDeadlineTimer t(msecs);
     do {
-        QThread::msleep(250);
+        QThread::sleep(std::chrono::milliseconds{250});
         QFile file(filePath);
         if (!file.open(QIODevice::ReadOnly))
             continue;
diff --git a/tests/auto/corelib/io/qprocess/testForwardingHelper/CMakeLists.txt b/tests/auto/corelib/io/qprocess/testForwardingHelper/CMakeLists.txt
index 29190d3b..9f5f0643 100644
--- a/tests/auto/corelib/io/qprocess/testForwardingHelper/CMakeLists.txt
+++ b/tests/auto/corelib/io/qprocess/testForwardingHelper/CMakeLists.txt
@@ -7,6 +7,7 @@
 
 qt_internal_add_executable(testForwardingHelper
     OUTPUT_DIRECTORY "${CMAKE_CURRENT_BINARY_DIR}/"
+    CORE_LIBRARY None
     SOURCES
         main.cpp
 )
diff --git a/tests/auto/corelib/io/qprocess/testProcessCrash/CMakeLists.txt b/tests/auto/corelib/io/qprocess/testProcessCrash/CMakeLists.txt
index a38f9da4..2f167899 100644
--- a/tests/auto/corelib/io/qprocess/testProcessCrash/CMakeLists.txt
+++ b/tests/auto/corelib/io/qprocess/testProcessCrash/CMakeLists.txt
@@ -7,6 +7,7 @@
 
 qt_internal_add_executable(testProcessCrash
     OUTPUT_DIRECTORY "${CMAKE_CURRENT_BINARY_DIR}/"
+    CORE_LIBRARY None
     SOURCES
         main.cpp
 )
diff --git a/tests/auto/corelib/io/qprocess/testProcessCrash/main.cpp b/tests/auto/corelib/io/qprocess/testProcessCrash/main.cpp
index ddf0ef0a..474508c4 100644
--- a/tests/auto/corelib/io/qprocess/testProcessCrash/main.cpp
+++ b/tests/auto/corelib/io/qprocess/testProcessCrash/main.cpp
@@ -2,49 +2,12 @@
 // Copyright (C) 2020 Intel Corporation.
 // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only WITH Qt-GPL-exception-1.0
 
-#if __has_include(<sys/resource.h>)
-#  include <sys/resource.h>
-#  if defined(RLIMIT_CORE)
-static bool disableCoreDumps()
-{
-    // Unix: set our core dump limit to zero to request no dialogs.
-    if (struct rlimit rlim; getrlimit(RLIMIT_CORE, &rlim) == 0) {
-        rlim.rlim_cur = 0;
-        setrlimit(RLIMIT_CORE, &rlim);
-    }
-    return true;
-}
-static bool disabledCoreDumps = disableCoreDumps();
-#  endif // RLIMIT_CORE
-#endif // <sys/resource.h>
-
-void crashFallback(volatile int *ptr = nullptr)
-{
-    *ptr = 0;
-}
-
-#if defined(_MSC_VER)
-#  include <intrin.h>
+#include "../crasher.h"
+using namespace tst_QProcessCrash;
 
 int main()
 {
-#  if defined(_M_IX86) || defined(_M_X64)
-    __ud2();
-#  endif
-
-    crashFallback();
+    NoCoreDumps disableCoreDumps;
+    crash();
+    return 0;
 }
-#elif defined(__MINGW32__)
-int main()
-{
-    asm("ud2");
-    crashFallback();
-}
-#else
-#  include <stdlib.h>
-
-int main()
-{
-    abort();
-}
-#endif
diff --git a/tests/auto/corelib/io/qprocess/testProcessDeadWhileReading/CMakeLists.txt b/tests/auto/corelib/io/qprocess/testProcessDeadWhileReading/CMakeLists.txt
index fa85e23f..bdd82c64 100644
--- a/tests/auto/corelib/io/qprocess/testProcessDeadWhileReading/CMakeLists.txt
+++ b/tests/auto/corelib/io/qprocess/testProcessDeadWhileReading/CMakeLists.txt
@@ -7,6 +7,7 @@
 
 qt_internal_add_executable(testProcessDeadWhileReading
     OUTPUT_DIRECTORY "${CMAKE_CURRENT_BINARY_DIR}/"
+    CORE_LIBRARY None
     SOURCES
         main.cpp
 )
diff --git a/tests/auto/corelib/io/qprocess/testProcessEOF/CMakeLists.txt b/tests/auto/corelib/io/qprocess/testProcessEOF/CMakeLists.txt
index 7cfae211..8914bf18 100644
--- a/tests/auto/corelib/io/qprocess/testProcessEOF/CMakeLists.txt
+++ b/tests/auto/corelib/io/qprocess/testProcessEOF/CMakeLists.txt
@@ -7,6 +7,7 @@
 
 qt_internal_add_executable(testProcessEOF
     OUTPUT_DIRECTORY "${CMAKE_CURRENT_BINARY_DIR}/"
+    CORE_LIBRARY None
     SOURCES
         main.cpp
 )
diff --git a/tests/auto/corelib/io/qprocess/testProcessEcho/CMakeLists.txt b/tests/auto/corelib/io/qprocess/testProcessEcho/CMakeLists.txt
index f11d43b1..071156f7 100644
--- a/tests/auto/corelib/io/qprocess/testProcessEcho/CMakeLists.txt
+++ b/tests/auto/corelib/io/qprocess/testProcessEcho/CMakeLists.txt
@@ -7,6 +7,7 @@
 
 qt_internal_add_executable(testProcessEcho
     OUTPUT_DIRECTORY "${CMAKE_CURRENT_BINARY_DIR}/"
+    CORE_LIBRARY None
     SOURCES
         main.cpp
 )
diff --git a/tests/auto/corelib/io/qprocess/testProcessEcho2/CMakeLists.txt b/tests/auto/corelib/io/qprocess/testProcessEcho2/CMakeLists.txt
index 6483d687..9f71b1eb 100644
--- a/tests/auto/corelib/io/qprocess/testProcessEcho2/CMakeLists.txt
+++ b/tests/auto/corelib/io/qprocess/testProcessEcho2/CMakeLists.txt
@@ -7,6 +7,7 @@
 
 qt_internal_add_executable(testProcessEcho2
     OUTPUT_DIRECTORY "${CMAKE_CURRENT_BINARY_DIR}/"
+    CORE_LIBRARY None
     SOURCES
         main.cpp
 )
diff --git a/tests/auto/corelib/io/qprocess/testProcessEcho3/CMakeLists.txt b/tests/auto/corelib/io/qprocess/testProcessEcho3/CMakeLists.txt
index b47e3f0e..badc9ef8 100644
--- a/tests/auto/corelib/io/qprocess/testProcessEcho3/CMakeLists.txt
+++ b/tests/auto/corelib/io/qprocess/testProcessEcho3/CMakeLists.txt
@@ -7,6 +7,7 @@
 
 qt_internal_add_executable(testProcessEcho3
     OUTPUT_DIRECTORY "${CMAKE_CURRENT_BINARY_DIR}/"
+    CORE_LIBRARY None
     SOURCES
         main.cpp
 )
diff --git a/tests/auto/corelib/io/qprocess/testProcessEchoGui/CMakeLists.txt b/tests/auto/corelib/io/qprocess/testProcessEchoGui/CMakeLists.txt
index f63403d8..43663e62 100644
--- a/tests/auto/corelib/io/qprocess/testProcessEchoGui/CMakeLists.txt
+++ b/tests/auto/corelib/io/qprocess/testProcessEchoGui/CMakeLists.txt
@@ -8,6 +8,7 @@
 qt_internal_add_executable(testProcessEchoGui
     GUI
     OUTPUT_DIRECTORY "${CMAKE_CURRENT_BINARY_DIR}/"
+    CORE_LIBRARY None
     SOURCES
         main_win.cpp
 )
diff --git a/tests/auto/corelib/io/qprocess/testProcessEnvironment/CMakeLists.txt b/tests/auto/corelib/io/qprocess/testProcessEnvironment/CMakeLists.txt
index c06b8d48..9069bbc7 100644
--- a/tests/auto/corelib/io/qprocess/testProcessEnvironment/CMakeLists.txt
+++ b/tests/auto/corelib/io/qprocess/testProcessEnvironment/CMakeLists.txt
@@ -7,6 +7,7 @@
 
 qt_internal_add_executable(testProcessEnvironment
     OUTPUT_DIRECTORY "${CMAKE_CURRENT_BINARY_DIR}/"
+    CORE_LIBRARY None
     SOURCES
         main.cpp
 )
diff --git a/tests/auto/corelib/io/qprocess/testProcessHang/CMakeLists.txt b/tests/auto/corelib/io/qprocess/testProcessHang/CMakeLists.txt
index 256253e7..cb6f490c 100644
--- a/tests/auto/corelib/io/qprocess/testProcessHang/CMakeLists.txt
+++ b/tests/auto/corelib/io/qprocess/testProcessHang/CMakeLists.txt
@@ -7,6 +7,7 @@
 
 qt_internal_add_executable(testProcessHang
     OUTPUT_DIRECTORY "${CMAKE_CURRENT_BINARY_DIR}/"
+    CORE_LIBRARY None
     SOURCES
         main.cpp
 )
diff --git a/tests/auto/corelib/io/qprocess/testProcessNormal/CMakeLists.txt b/tests/auto/corelib/io/qprocess/testProcessNormal/CMakeLists.txt
index 06ce2ecc..7eb63887 100644
--- a/tests/auto/corelib/io/qprocess/testProcessNormal/CMakeLists.txt
+++ b/tests/auto/corelib/io/qprocess/testProcessNormal/CMakeLists.txt
@@ -7,6 +7,7 @@
 
 qt_internal_add_executable(testProcessNormal
     OUTPUT_DIRECTORY "${CMAKE_CURRENT_BINARY_DIR}/"
+    CORE_LIBRARY None
     SOURCES
         main.cpp
 )
diff --git a/tests/auto/corelib/io/qprocess/testProcessOutput/CMakeLists.txt b/tests/auto/corelib/io/qprocess/testProcessOutput/CMakeLists.txt
index 8f2697f7..78005b2b 100644
--- a/tests/auto/corelib/io/qprocess/testProcessOutput/CMakeLists.txt
+++ b/tests/auto/corelib/io/qprocess/testProcessOutput/CMakeLists.txt
@@ -7,6 +7,7 @@
 
 qt_internal_add_executable(testProcessOutput
     OUTPUT_DIRECTORY "${CMAKE_CURRENT_BINARY_DIR}/"
+    CORE_LIBRARY None
     SOURCES
         main.cpp
 )
diff --git a/tests/auto/corelib/io/qprocess/testProcessSpacesArgs/CMakeLists.txt b/tests/auto/corelib/io/qprocess/testProcessSpacesArgs/CMakeLists.txt
index 8102dd35..5ea7bf53 100644
--- a/tests/auto/corelib/io/qprocess/testProcessSpacesArgs/CMakeLists.txt
+++ b/tests/auto/corelib/io/qprocess/testProcessSpacesArgs/CMakeLists.txt
@@ -3,12 +3,14 @@
 
 qt_internal_add_executable(nospace
     OUTPUT_DIRECTORY "${CMAKE_CURRENT_BINARY_DIR}/"
+    CORE_LIBRARY None
     SOURCES
         main.cpp
 )
 
 qt_internal_add_executable(onespace
     OUTPUT_DIRECTORY "${CMAKE_CURRENT_BINARY_DIR}/"
+    CORE_LIBRARY None
     SOURCES
         main.cpp
 )
@@ -16,6 +18,7 @@ set_target_properties(onespace PROPERTIES OUTPUT_NAME "one space")
 
 qt_internal_add_executable(twospaces
     OUTPUT_DIRECTORY "${CMAKE_CURRENT_BINARY_DIR}/"
+    CORE_LIBRARY None
     SOURCES
         main.cpp
 )
diff --git a/tests/auto/corelib/io/qprocess/testSetNamedPipeHandleState/CMakeLists.txt b/tests/auto/corelib/io/qprocess/testSetNamedPipeHandleState/CMakeLists.txt
index 8a168155..5e532aa0 100644
--- a/tests/auto/corelib/io/qprocess/testSetNamedPipeHandleState/CMakeLists.txt
+++ b/tests/auto/corelib/io/qprocess/testSetNamedPipeHandleState/CMakeLists.txt
@@ -7,6 +7,7 @@
 
 qt_internal_add_executable(testSetNamedPipeHandleState
     OUTPUT_DIRECTORY "${CMAKE_CURRENT_BINARY_DIR}/"
+    CORE_LIBRARY None
     SOURCES
         main.cpp
 )
diff --git a/tests/auto/corelib/io/qprocess/testSoftExit/CMakeLists.txt b/tests/auto/corelib/io/qprocess/testSoftExit/CMakeLists.txt
index 8c42bfc9..44099dca 100644
--- a/tests/auto/corelib/io/qprocess/testSoftExit/CMakeLists.txt
+++ b/tests/auto/corelib/io/qprocess/testSoftExit/CMakeLists.txt
@@ -7,6 +7,7 @@
 
 qt_internal_add_executable(testSoftExit
     OUTPUT_DIRECTORY "${CMAKE_CURRENT_BINARY_DIR}/"
+    CORE_LIBRARY None
 )
 
 qt_internal_extend_target(testSoftExit CONDITION WIN32
diff --git a/tests/auto/corelib/io/qprocess/testSpaceInName/CMakeLists.txt b/tests/auto/corelib/io/qprocess/testSpaceInName/CMakeLists.txt
index 0658a72a..9cc05bfc 100644
--- a/tests/auto/corelib/io/qprocess/testSpaceInName/CMakeLists.txt
+++ b/tests/auto/corelib/io/qprocess/testSpaceInName/CMakeLists.txt
@@ -7,6 +7,7 @@
 
 qt_internal_add_executable(testSpaceInName
     OUTPUT_DIRECTORY "${CMAKE_CURRENT_BINARY_DIR}/"
+    CORE_LIBRARY None
     SOURCES
         main.cpp
 )
diff --git a/tests/auto/corelib/io/qprocess/testUnixProcessParameters/CMakeLists.txt b/tests/auto/corelib/io/qprocess/testUnixProcessParameters/CMakeLists.txt
new file mode 100644
index 00000000..9b6c4893
--- /dev/null
+++ b/tests/auto/corelib/io/qprocess/testUnixProcessParameters/CMakeLists.txt
@@ -0,0 +1,13 @@
+# Copyright (C) 2023 Intel Corporation.
+# SPDX-License-Identifier: BSD-3-Clause
+
+#####################################################################
+## testProcessNormal Binary:
+#####################################################################
+
+qt_internal_add_executable(testUnixProcessParameters
+    OUTPUT_DIRECTORY "${CMAKE_CURRENT_BINARY_DIR}/"
+    CORE_LIBRARY None
+    SOURCES
+        main.cpp
+)
diff --git a/tests/auto/corelib/io/qprocess/testUnixProcessParameters/main.cpp b/tests/auto/corelib/io/qprocess/testUnixProcessParameters/main.cpp
new file mode 100644
index 00000000..96425eca
--- /dev/null
+++ b/tests/auto/corelib/io/qprocess/testUnixProcessParameters/main.cpp
@@ -0,0 +1,85 @@
+// Copyright (C) 2023 Intel Corporation.
+// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only WITH Qt-GPL-exception-1.0
+
+#include <string_view>
+
+#include <errno.h>
+#include <fcntl.h>
+#include <sched.h>
+#include <signal.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/resource.h>
+#include <unistd.h>
+
+int main(int argc, char **argv)
+{
+    if (argc < 2) {
+        printf("Usage: %s command [extra]\nSee source code for commands\n",
+               argv[0]);
+        return EXIT_FAILURE;
+    }
+
+    std::string_view cmd = argv[1];
+    errno = 0;
+
+    if (cmd.size() == 0) {
+        // just checking that we did get here
+        return EXIT_SUCCESS;
+    }
+
+    if (cmd == "reset-sighand") {
+        bool ok = true;
+
+        // confirm our signal block mask is empty
+        sigset_t set;
+        sigprocmask(SIG_SETMASK, nullptr, &set);
+        for (int signo = 1; signo < NSIG; ++signo) {
+            if (sigismember(&set, signo)) {
+                fprintf(stderr, "'%s' is blocked.\n", strsignal(signo));
+                ok = false;
+            }
+        }
+
+        // confirm SIGUSR1 was not ignored
+        struct sigaction action;
+        sigaction(SIGUSR1, nullptr, &action);
+        if (action.sa_handler != SIG_DFL) {
+            fprintf(stderr, "SIGUSR1 is SIG_IGN\n");
+            ok = false;
+        }
+        return ok ? EXIT_SUCCESS : EXIT_FAILURE;
+    }
+
+    if (cmd == "ignore-sigpipe") {
+        // confirm SIGPIPE was ignored
+        struct sigaction action;
+        sigaction(SIGPIPE, nullptr, &action);
+        if (action.sa_handler == SIG_IGN)
+            return EXIT_SUCCESS;
+        fprintf(stderr, "SIGPIPE is SIG_DFL\n");
+        return EXIT_FAILURE;
+    }
+
+    if (cmd == "file-descriptors") {
+        int fd = atoi(argv[2]);
+        if (close(fd) < 0 && errno == EBADF)
+            return EXIT_SUCCESS;
+        fprintf(stderr, "%d is a valid file descriptor\n", fd);
+        return EXIT_FAILURE;
+    }
+
+    if (cmd == "file-descriptors2") {
+        int fd1 = atoi(argv[2]);    // should be open
+        int fd2 = atoi(argv[3]);    // should be closed
+        if (close(fd1) < 0)
+            fprintf(stderr, "%d was not a valid file descriptor\n", fd1);
+        if (close(fd2) == 0 || errno != EBADF)
+            fprintf(stderr, "%d is a valid file descriptor\n", fd2);
+        return EXIT_SUCCESS;
+    }
+
+    fprintf(stderr, "Unknown command \"%s\"", cmd.data());
+    return EXIT_FAILURE;
+}
diff --git a/tests/auto/corelib/io/qprocess/tst_qprocess.cpp b/tests/auto/corelib/io/qprocess/tst_qprocess.cpp
index b6e81502..800703e2 100644
--- a/tests/auto/corelib/io/qprocess/tst_qprocess.cpp
+++ b/tests/auto/corelib/io/qprocess/tst_qprocess.cpp
@@ -21,6 +21,7 @@
 #include <qplatformdefs.h>
 #ifdef Q_OS_UNIX
 #  include <private/qcore_unix_p.h>
+#  include <sys/wait.h>
 #endif
 
 #include <QtTest/private/qemulationdetector_p.h>
@@ -111,7 +112,13 @@ private slots:
     void createProcessArgumentsModifier();
 #endif // Q_OS_WIN
 #if defined(Q_OS_UNIX)
+    void setChildProcessModifier_data();
     void setChildProcessModifier();
+    void throwInChildProcessModifier();
+    void unixProcessParameters_data();
+    void unixProcessParameters();
+    void unixProcessParametersAndChildModifier();
+    void unixProcessParametersOtherFileDescriptors();
 #endif
     void exitCodeTest();
     void systemEnvironment();
@@ -152,6 +159,7 @@ protected slots:
 private:
     qint64 bytesAvailable;
     QTemporaryDir m_temporaryDir;
+    bool haveWorkingVFork = false;
 };
 
 void tst_QProcess::initTestCase()
@@ -163,6 +171,12 @@ void tst_QProcess::initTestCase()
     // chdir to our testdata path and execute helper apps relative to that.
     QString testdata_dir = QFileInfo(QFINDTESTDATA("testProcessNormal")).absolutePath();
     QVERIFY2(QDir::setCurrent(testdata_dir), qPrintable("Could not chdir to " + testdata_dir));
+
+#if defined(Q_OS_LINUX) && QT_CONFIG(forkfd_pidfd)
+    // see detect_clone_pidfd_support() in forkfd_linux.c for explanation
+    waitid(/*P_PIDFD*/ idtype_t(3), INT_MAX, NULL, WEXITED|WNOHANG);
+    haveWorkingVFork = (errno == EBADF);
+#endif
 }
 
 void tst_QProcess::cleanupTestCase()
@@ -1445,8 +1459,16 @@ static void childProcessModifier(int fd)
     QT_CLOSE(fd);
 }
 
+void tst_QProcess::setChildProcessModifier_data()
+{
+    QTest::addColumn<bool>("detached");
+    QTest::newRow("normal") << false;
+    QTest::newRow("detached") << true;
+}
+
 void tst_QProcess::setChildProcessModifier()
 {
+    QFETCH(bool, detached);
     int pipes[2] = { -1 , -1 };
     QVERIFY(qt_safe_pipe(pipes) == 0);
 
@@ -1454,20 +1476,215 @@ void tst_QProcess::setChildProcessModifier()
     process.setChildProcessModifier([pipes]() {
         ::childProcessModifier(pipes[1]);
     });
-    process.start("testProcessNormal/testProcessNormal");
-    if (process.state() != QProcess::Starting)
-        QCOMPARE(process.state(), QProcess::Running);
-    QVERIFY2(process.waitForStarted(5000), qPrintable(process.errorString()));
+    process.setProgram("testProcessNormal/testProcessNormal");
+    if (detached) {
+        process.startDetached();
+    } else {
+        process.start("testProcessNormal/testProcessNormal");
+        if (process.state() != QProcess::Starting)
+            QCOMPARE(process.state(), QProcess::Running);
+        QVERIFY2(process.waitForStarted(5000), qPrintable(process.errorString()));
+        QVERIFY2(process.waitForFinished(5000), qPrintable(process.errorString()));
+        QCOMPARE(process.exitStatus(), QProcess::NormalExit);
+        QCOMPARE(process.exitCode(), 0);
+    }
 
     char buf[sizeof messageFromChildProcess] = {};
     qt_safe_close(pipes[1]);
     QCOMPARE(qt_safe_read(pipes[0], buf, sizeof(buf)), qint64(sizeof(messageFromChildProcess)) - 1);
     QCOMPARE(buf, messageFromChildProcess);
     qt_safe_close(pipes[0]);
+}
 
-    QVERIFY2(process.waitForFinished(5000), qPrintable(process.errorString()));
-    QCOMPARE(process.exitStatus(), QProcess::NormalExit);
+void tst_QProcess::throwInChildProcessModifier()
+{
+#ifndef __cpp_exceptions
+    Q_SKIP("Exceptions disabled.");
+#else
+    QProcess process;
+    process.setChildProcessModifier([]() {
+        throw 42;
+    });
+    process.setProgram("testProcessNormal/testProcessNormal");
+
+    process.start();
+    QVERIFY(!process.waitForStarted(5000));
+    QCOMPARE(process.state(), QProcess::NotRunning);
+    QCOMPARE(process.error(), QProcess::FailedToStart);
+    QVERIFY2(process.errorString().contains("childProcessModifier"),
+             qPrintable(process.errorString()));
+
+    // try again, to ensure QProcess internal state wasn't corrupted
+    process.start();
+    QVERIFY(!process.waitForStarted(5000));
+    QCOMPARE(process.state(), QProcess::NotRunning);
+    QCOMPARE(process.error(), QProcess::FailedToStart);
+    QVERIFY2(process.errorString().contains("childProcessModifier"),
+             qPrintable(process.errorString()));
+#endif
+}
+
+void tst_QProcess::unixProcessParameters_data()
+{
+    QTest::addColumn<QProcess::UnixProcessParameters>("params");
+    QTest::addColumn<QString>("cmd");
+    QTest::newRow("defaults") << QProcess::UnixProcessParameters{} << QString();
+
+    auto addRow = [](const char *cmd, QProcess::UnixProcessFlags flags) {
+        QProcess::UnixProcessParameters params = {};
+        params.flags = flags;
+        QTest::addRow("%s", cmd) << params << cmd;
+    };
+    using P = QProcess::UnixProcessFlag;
+    addRow("reset-sighand", P::ResetSignalHandlers);
+    addRow("ignore-sigpipe", P::IgnoreSigPipe);
+    addRow("file-descriptors", P::CloseFileDescriptors);
+}
+
+void tst_QProcess::unixProcessParameters()
+{
+    QFETCH(QProcess::UnixProcessParameters, params);
+    QFETCH(QString, cmd);
+
+    // set up a few things
+    struct Scope {
+        int devnull;
+        struct sigaction old_sigusr1, old_sigpipe;
+        Scope()
+        {
+            int fd = open("/dev/null", O_RDONLY);
+            devnull = fcntl(fd, F_DUPFD, 100);
+            close(fd);
+
+            // we ignore SIGUSR1 and reset SIGPIPE to Terminate
+            struct sigaction act = {};
+            sigemptyset(&act.sa_mask);
+            act.sa_handler = SIG_IGN;
+            sigaction(SIGUSR1, &act, &old_sigusr1);
+            act.sa_handler = SIG_DFL;
+            sigaction(SIGPIPE, &act, &old_sigpipe);
+
+            // and we block SIGUSR2
+            sigset_t *set = &act.sa_mask;               // reuse this sigset_t
+            sigaddset(set, SIGUSR2);
+            sigprocmask(SIG_BLOCK, set, nullptr);
+        }
+        ~Scope()
+        {
+            if (devnull != -1)
+                dismiss();
+        }
+        void dismiss()
+        {
+            close(devnull);
+            sigaction(SIGUSR1, &old_sigusr1, nullptr);
+            sigaction(SIGPIPE, &old_sigpipe, nullptr);
+            devnull = -1;
+
+            sigset_t *set = &old_sigusr1.sa_mask;       // reuse this sigset_t
+            sigaddset(set, SIGUSR2);
+            sigprocmask(SIG_BLOCK, set, nullptr);
+        }
+    } scope;
+
+    QProcess process;
+    process.setUnixProcessParameters(params);
+    process.setStandardInputFile(QProcess::nullDevice());   // so we can't mess with SIGPIPE
+    process.setProgram("testUnixProcessParameters/testUnixProcessParameters");
+    process.setArguments({ cmd, QString::number(scope.devnull) });
+    process.start();
+    QVERIFY2(process.waitForStarted(5000), qPrintable(process.errorString()));
+    QVERIFY(process.waitForFinished(5000));
+
+    const QString stdErr = process.readAllStandardError();
+    QCOMPARE(stdErr, QString());
+    QCOMPARE(process.readAll(), QString());
     QCOMPARE(process.exitCode(), 0);
+    QCOMPARE(process.exitStatus(), QProcess::NormalExit);
+}
+
+void tst_QProcess::unixProcessParametersAndChildModifier()
+{
+    static constexpr char message[] = "Message from the handler function\n";
+    static_assert(std::char_traits<char>::length(message) <= PIPE_BUF);
+    QProcess process;
+    QAtomicInt vforkControl;
+    int pipes[2];
+
+    QVERIFY2(pipe(pipes) == 0, qPrintable(qt_error_string()));
+    auto pipeGuard0 = qScopeGuard([=] { close(pipes[0]); });
+    {
+        auto pipeGuard1 = qScopeGuard([=] { close(pipes[1]); });
+
+        // verify that our modifier runs before the parameters are applied
+        process.setChildProcessModifier([=, &vforkControl] {
+            write(pipes[1], message, strlen(message));
+            vforkControl.storeRelaxed(1);
+        });
+        auto flags = QProcess::UnixProcessFlag::CloseFileDescriptors |
+                QProcess::UnixProcessFlag::UseVFork;
+        process.setUnixProcessParameters({ flags });
+        process.setProgram("testUnixProcessParameters/testUnixProcessParameters");
+        process.setArguments({ "file-descriptors", QString::number(pipes[1]) });
+        process.start();
+        QVERIFY2(process.waitForStarted(5000), qPrintable(process.errorString()));
+    } // closes the writing end of the pipe
+
+    QVERIFY(process.waitForFinished(5000));
+    QCOMPARE(process.readAllStandardError(), QString());
+    QCOMPARE(process.readAll(), QString());
+
+    char buf[2 * sizeof(message)];
+    int r = read(pipes[0], buf, sizeof(buf));
+    QVERIFY2(r >= 0, qPrintable(qt_error_string()));
+    QCOMPARE(QByteArrayView(buf, r), message);
+
+    if (haveWorkingVFork)
+        QVERIFY2(vforkControl.loadRelaxed(), "QProcess doesn't appear to have used vfork()");
+}
+
+void tst_QProcess::unixProcessParametersOtherFileDescriptors()
+{
+    constexpr int TargetFileDescriptor = 3;
+    int pipes[2];
+    int fd1 = open("/dev/null", O_RDONLY);
+    int devnull = fcntl(fd1, F_DUPFD, 100); // instead of F_DUPFD_CLOEXEC
+    qt_safe_pipe(pipes);                    // implied O_CLOEXEC
+    close(fd1);
+
+    auto closeFds = qScopeGuard([&] {
+        close(devnull);
+        close(pipes[0]);
+        // we'll close pipe[1] before any QCOMPARE
+    });
+
+    QProcess process;
+    QProcess::UnixProcessParameters params;
+    params.flags = QProcess::UnixProcessFlag::CloseFileDescriptors
+            | QProcess::UnixProcessFlag::UseVFork;
+    params.lowestFileDescriptorToClose = 4;
+    process.setUnixProcessParameters(params);
+    process.setChildProcessModifier([devnull, pipes]() {
+        if (dup2(devnull, TargetFileDescriptor) == TargetFileDescriptor)
+            return;
+        write(pipes[1], &errno, sizeof(errno));
+        _exit(255);
+    });
+    process.setProgram("testUnixProcessParameters/testUnixProcessParameters");
+    process.setArguments({ "file-descriptors2", QString::number(TargetFileDescriptor),
+                           QString::number(devnull) });
+    process.start();
+    close(pipes[1]);
+
+    if (int duperror; read(pipes[0], &duperror, sizeof(duperror)) == sizeof(duperror))
+        QFAIL(QByteArray("dup2 failed: ") + strerror(duperror));
+
+    QVERIFY2(process.waitForStarted(5000), qPrintable(process.errorString()));
+    QVERIFY(process.waitForFinished(5000));
+    QCOMPARE(process.readAllStandardError(), QString());
+    QCOMPARE(process.readAll(), QString());
+    QCOMPARE(process.exitCode(), 0);
+    QCOMPARE(process.exitStatus(), QProcess::NormalExit);
 }
 #endif
 
@@ -1500,7 +1717,7 @@ void tst_QProcess::failToStart()
 // to many processes here will cause test failures later on.
 #if defined Q_OS_HPUX
    const int attempts = 15;
-#elif defined Q_OS_MAC
+#elif defined Q_OS_DARWIN
    const int attempts = 15;
 #else
    const int attempts = 50;
@@ -2362,7 +2579,7 @@ public:
 public slots:
     void block()
     {
-        QThread::sleep(1);
+        QThread::sleep(std::chrono::seconds{1});
     }
 };
 
diff --git a/tests/auto/corelib/io/qresourceengine/CMakeLists.txt b/tests/auto/corelib/io/qresourceengine/CMakeLists.txt
index 7a4f9ec4..e957a4a9 100644
--- a/tests/auto/corelib/io/qresourceengine/CMakeLists.txt
+++ b/tests/auto/corelib/io/qresourceengine/CMakeLists.txt
@@ -31,6 +31,17 @@ qt_internal_add_test(tst_qresourceengine
     TESTDATA ${test_data}
 )
 
+set_source_files_properties("world.txt"
+    PROPERTIES QT_DISCARD_FILE_CONTENTS TRUE
+)
+
+qt_internal_add_resource(tst_qresourceengine "qt_resource_empty"
+    PREFIX
+        "/empty"
+    FILES
+        "world.txt"
+)
+
 qt_add_resources(additional_sources testqrc/test.qrc)
 target_sources(tst_qresourceengine PRIVATE ${additional_sources})
 
diff --git a/tests/auto/corelib/io/qresourceengine/tst_qresourceengine.cpp b/tests/auto/corelib/io/qresourceengine/tst_qresourceengine.cpp
index cc6d9241..71dc45ed 100644
--- a/tests/auto/corelib/io/qresourceengine/tst_qresourceengine.cpp
+++ b/tests/auto/corelib/io/qresourceengine/tst_qresourceengine.cpp
@@ -41,6 +41,7 @@ private slots:
     void setLocale();
     void lastModified();
     void resourcesInStaticPlugins();
+    void qtResourceEmpty();
 
 private:
     const QString m_runtimeResourceRcc;
@@ -168,6 +169,7 @@ void tst_QResourceEngine::checkStructure_data()
 #ifdef Q_OS_ANDROID
                  << QLatin1String("android_testdata")
 #endif
+                 << QLatin1String("empty")
                  << QLatin1String("otherdir")
                  << QLatin1String("runtime_resource")
                  << QLatin1String("searchpath1")
@@ -620,6 +622,14 @@ void tst_QResourceEngine::resourcesInStaticPlugins()
     QVERIFY(QFile::exists(":/staticplugin/main.cpp"));
 }
 
+void tst_QResourceEngine::qtResourceEmpty()
+{
+    QFile f(":/empty/world.txt");
+    QVERIFY(f.exists());
+    QVERIFY(f.open(QIODevice::ReadOnly));
+    QVERIFY(f.readAll().isEmpty());
+}
+
 QTEST_MAIN(tst_QResourceEngine)
 
 #include "tst_qresourceengine.moc"
diff --git a/tests/auto/corelib/io/qresourceengine/world.txt b/tests/auto/corelib/io/qresourceengine/world.txt
new file mode 100644
index 00000000..ce013625
--- /dev/null
+++ b/tests/auto/corelib/io/qresourceengine/world.txt
@@ -0,0 +1 @@
+hello
diff --git a/tests/auto/corelib/io/qsettings/tst_qsettings.cpp b/tests/auto/corelib/io/qsettings/tst_qsettings.cpp
index bf1c165b..2994b32d 100644
--- a/tests/auto/corelib/io/qsettings/tst_qsettings.cpp
+++ b/tests/auto/corelib/io/qsettings/tst_qsettings.cpp
@@ -131,7 +131,7 @@ private slots:
     void testRegistryShortRootNames();
     void testRegistry32And64Bit();
     void trailingWhitespace();
-#ifdef Q_OS_MAC
+#ifdef Q_OS_DARWIN
     void fileName();
 #endif
     void isWritable_data() { populateWithFormats(); }
@@ -497,7 +497,7 @@ void tst_QSettings::ctor()
         QSettings settings5(format, QSettings::UserScope, "SoftWare.ORG", "killerApp");
 
         bool caseSensitive = true;
-#if defined(Q_OS_MAC)
+#if defined(Q_OS_DARWIN)
         if (format == QSettings::NativeFormat) {
             // more details in QMacSettingsPrivate::QMacSettingsPrivate(), organization was comify()-ed
             caseSensitive = settings5.fileName().contains("SoftWare.ORG");;
@@ -578,7 +578,7 @@ void tst_QSettings::ctor()
             QCoreApplication::instance()->setOrganizationName("");
             QCoreApplication::instance()->setApplicationName("");
             QSettings settings;
-#if defined(Q_OS_MAC)
+#if defined(Q_OS_DARWIN)
             QEXPECT_FAIL("native", "Default settings on Mac are valid, despite organization domain, name, and app name being null", Continue);
 #endif
             QCOMPARE(settings.status(), QSettings::AccessError);
@@ -593,7 +593,7 @@ void tst_QSettings::ctor()
         }
 
         QSettings settings(format, QSettings::UserScope, "", "");
-#if defined(Q_OS_MAC)
+#if defined(Q_OS_DARWIN)
         QEXPECT_FAIL("native", "Default settings on Mac are valid, despite organization domain, name, and app name being null", Continue);
 #endif
         QCOMPARE(settings.status(), QSettings::AccessError);
@@ -2902,7 +2902,7 @@ void tst_QSettings::testCaseSensitivity()
     }
 }
 
-#ifdef Q_OS_MAC
+#ifdef Q_OS_DARWIN
 // Please write a fileName() test for the other platforms
 void tst_QSettings::fileName()
 {
@@ -3310,7 +3310,7 @@ void tst_QSettings::setPath()
         path checks that it has no bad side effects.
     */
     for (int i = 0; i < 2; ++i) {
-#if !defined(Q_OS_WIN) && !defined(Q_OS_MAC)
+#if !defined(Q_OS_WIN) && !defined(Q_OS_DARWIN)
         TEST_PATH(i == 0, "conf", NativeFormat, UserScope, "alpha")
         TEST_PATH(i == 0, "conf", NativeFormat, SystemScope, "beta")
 #endif
diff --git a/tests/auto/corelib/io/qstorageinfo/tst_qstorageinfo.cpp b/tests/auto/corelib/io/qstorageinfo/tst_qstorageinfo.cpp
index 7e462537..94acef6b 100644
--- a/tests/auto/corelib/io/qstorageinfo/tst_qstorageinfo.cpp
+++ b/tests/auto/corelib/io/qstorageinfo/tst_qstorageinfo.cpp
@@ -98,7 +98,7 @@ void tst_QStorageInfo::operatorNotEqual()
 {
     QStorageInfo storage1 = QStorageInfo::root();
     QStorageInfo storage2;
-    QVERIFY(storage1 != storage2);
+    QCOMPARE_NE(storage1, storage2);
 }
 
 void tst_QStorageInfo::root()
@@ -112,9 +112,9 @@ void tst_QStorageInfo::root()
     QVERIFY(!storage.device().isEmpty());
     QVERIFY(!storage.fileSystemType().isEmpty());
 #ifndef Q_OS_HAIKU
-    QVERIFY(storage.bytesTotal() >= 0);
-    QVERIFY(storage.bytesFree() >= 0);
-    QVERIFY(storage.bytesAvailable() >= 0);
+    QCOMPARE_GE(storage.bytesTotal(), 0);
+    QCOMPARE_GE(storage.bytesFree(), 0);
+    QCOMPARE_GE(storage.bytesAvailable(), 0);
 #endif
 }
 
@@ -127,9 +127,9 @@ void tst_QStorageInfo::currentStorage()
     QVERIFY(appPath.startsWith(storage.rootPath(), Qt::CaseInsensitive));
     QVERIFY(!storage.device().isEmpty());
     QVERIFY(!storage.fileSystemType().isEmpty());
-    QVERIFY(storage.bytesTotal() >= 0);
-    QVERIFY(storage.bytesFree() >= 0);
-    QVERIFY(storage.bytesAvailable() >= 0);
+    QCOMPARE_GE(storage.bytesTotal(), 0);
+    QCOMPARE_GE(storage.bytesFree(), 0);
+    QCOMPARE_GE(storage.bytesAvailable(), 0);
 }
 
 void tst_QStorageInfo::storageList()
@@ -168,7 +168,7 @@ void tst_QStorageInfo::tempFile()
 #endif
 
     qint64 free = storage1.bytesFree();
-    QVERIFY(free != -1);
+    QCOMPARE_NE(free, -1);
 
     file.write(QByteArray(1024*1024, '1'));
     file.flush();
@@ -179,7 +179,7 @@ void tst_QStorageInfo::tempFile()
         QEXPECT_FAIL("", "This test is likely to fail on APFS", Continue);
     }
 
-    QVERIFY(free != storage2.bytesFree());
+    QCOMPARE_NE(free, storage2.bytesFree());
 }
 
 void tst_QStorageInfo::caching()
@@ -196,7 +196,7 @@ void tst_QStorageInfo::caching()
     qint64 free = storage1.bytesFree();
     QStorageInfo storage2(storage1);
     QCOMPARE(free, storage2.bytesFree());
-    QVERIFY(free != -1);
+    QCOMPARE_NE(free, -1);
 
     file.write(QByteArray(1024*1024, '\0'));
     file.flush();
@@ -208,7 +208,7 @@ void tst_QStorageInfo::caching()
     if (free == storage2.bytesFree() && storage2.fileSystemType() == "apfs") {
         QEXPECT_FAIL("", "This test is likely to fail on APFS", Continue);
     }
-    QVERIFY(free != storage2.bytesFree());
+    QCOMPARE_NE(free, storage2.bytesFree());
 }
 
 QTEST_MAIN(tst_QStorageInfo)
diff --git a/tests/auto/corelib/io/qurl/tst_qurl.cpp b/tests/auto/corelib/io/qurl/tst_qurl.cpp
index 070c0c53..2de0d541 100644
--- a/tests/auto/corelib/io/qurl/tst_qurl.cpp
+++ b/tests/auto/corelib/io/qurl/tst_qurl.cpp
@@ -1387,7 +1387,7 @@ void tst_QUrl::fromLocalFileNormalize()
 
 void tst_QUrl::macTypes()
 {
-#ifndef Q_OS_MAC
+#ifndef Q_OS_DARWIN
     QSKIP("This is a Mac-only test");
 #else
     extern void tst_QUrl_mactypes(); // in tst_qurl_mac.mm
diff --git a/tests/auto/gui/text/qzip/CMakeLists.txt b/tests/auto/corelib/io/qzip/CMakeLists.txt
similarity index 92%
rename from tests/auto/gui/text/qzip/CMakeLists.txt
rename to tests/auto/corelib/io/qzip/CMakeLists.txt
index 73bf0fda..615e6355 100644
--- a/tests/auto/gui/text/qzip/CMakeLists.txt
+++ b/tests/auto/corelib/io/qzip/CMakeLists.txt
@@ -15,7 +15,6 @@ qt_internal_add_test(tst_qzip
     SOURCES
         tst_qzip.cpp
     LIBRARIES
-        Qt::Gui
-        Qt::GuiPrivate
+        Qt::CorePrivate
     TESTDATA ${test_data}
 )
diff --git a/tests/auto/gui/text/qzip/testdata/symlink.zip b/tests/auto/corelib/io/qzip/testdata/symlink.zip
similarity index 100%
rename from tests/auto/gui/text/qzip/testdata/symlink.zip
rename to tests/auto/corelib/io/qzip/testdata/symlink.zip
diff --git a/tests/auto/gui/text/qzip/testdata/test.zip b/tests/auto/corelib/io/qzip/testdata/test.zip
similarity index 100%
rename from tests/auto/gui/text/qzip/testdata/test.zip
rename to tests/auto/corelib/io/qzip/testdata/test.zip
diff --git a/tests/auto/gui/text/qzip/tst_qzip.cpp b/tests/auto/corelib/io/qzip/tst_qzip.cpp
similarity index 100%
rename from tests/auto/gui/text/qzip/tst_qzip.cpp
rename to tests/auto/corelib/io/qzip/tst_qzip.cpp
diff --git a/tests/auto/corelib/ipc/CMakeLists.txt b/tests/auto/corelib/ipc/CMakeLists.txt
new file mode 100644
index 00000000..751d0937
--- /dev/null
+++ b/tests/auto/corelib/ipc/CMakeLists.txt
@@ -0,0 +1,14 @@
+# Copyright (C) 2022 Intel Corporation.
+# SPDX-License-Identifier: BSD-3-Clause
+
+if(NOT ANDROID AND NOT UIKIT)
+    if(QT_FEATURE_sharedmemory OR QT_FEATURE_systemsemaphore)
+        add_subdirectory(qnativeipckey)
+    endif()
+    if(QT_FEATURE_sharedmemory)
+        add_subdirectory(qsharedmemory)
+    endif()
+    if(QT_FEATURE_systemsemaphore)
+        add_subdirectory(qsystemsemaphore)
+    endif()
+endif()
diff --git a/tests/auto/corelib/ipc/ipctestcommon.h b/tests/auto/corelib/ipc/ipctestcommon.h
new file mode 100644
index 00000000..25c7b8ce
--- /dev/null
+++ b/tests/auto/corelib/ipc/ipctestcommon.h
@@ -0,0 +1,83 @@
+// Copyright (C) 2022 Intel Corporation.
+
+#include <QtTest/QTest>
+#include <QtCore/QNativeIpcKey>
+
+namespace IpcTestCommon {
+static QList<QNativeIpcKey::Type> supportedKeyTypes;
+
+template <typename IpcClass> void addGlobalTestRows()
+{
+    qDebug() << "Default key type is" << QNativeIpcKey::DefaultTypeForOs
+             << "and legacy key type is" << QNativeIpcKey::legacyDefaultTypeForOs();
+
+#if defined(Q_OS_FREEBSD) || defined(Q_OS_DARWIN) || defined(Q_OS_WIN) || (defined(Q_OS_LINUX) && !defined(Q_OS_ANDROID))
+    // only enforce that IPC works on the platforms above; other platforms may
+    // have no working backends (notably, Android)
+    QVERIFY(IpcClass::isKeyTypeSupported(QNativeIpcKey::DefaultTypeForOs));
+    QVERIFY(IpcClass::isKeyTypeSupported(QNativeIpcKey::legacyDefaultTypeForOs()));
+#endif
+
+    auto addRowIfSupported = [](const char *name, QNativeIpcKey::Type type) {
+        if (IpcClass::isKeyTypeSupported(type)) {
+            supportedKeyTypes << type;
+            QTest::newRow(name) << type;
+        }
+    };
+
+    QTest::addColumn<QNativeIpcKey::Type>("keyType");
+
+    addRowIfSupported("Windows", QNativeIpcKey::Type::Windows);
+    addRowIfSupported("POSIX", QNativeIpcKey::Type::PosixRealtime);
+    addRowIfSupported("SystemV-Q", QNativeIpcKey::Type::SystemV);
+    addRowIfSupported("SystemV-T", QNativeIpcKey::Type('T'));
+
+    if (supportedKeyTypes.isEmpty())
+        QSKIP("System reports no supported IPC types.");
+}
+
+// rotate through the supported types and find another
+inline QNativeIpcKey::Type nextKeyType(QNativeIpcKey::Type type)
+{
+    qsizetype idx = supportedKeyTypes.indexOf(type);
+    Q_ASSERT(idx >= 0);
+
+    ++idx;
+    if (idx == supportedKeyTypes.size())
+        idx = 0;
+    return supportedKeyTypes.at(idx);
+}
+} // namespace IpcTestCommon
+
+QT_BEGIN_NAMESPACE
+namespace QTest {
+template<> inline char *toString(const QNativeIpcKey::Type &type)
+{
+    switch (type) {
+    case QNativeIpcKey::Type::SystemV:  return qstrdup("SystemV");
+    case QNativeIpcKey::Type::PosixRealtime: return qstrdup("PosixRealTime");
+    case QNativeIpcKey::Type::Windows:  return qstrdup("Windows");
+    }
+    if (type == QNativeIpcKey::Type{})
+        return qstrdup("Invalid");
+
+    char buf[32];
+    qsnprintf(buf, sizeof(buf), "%u", unsigned(type));
+    return qstrdup(buf);
+}
+
+template<> inline char *toString(const QNativeIpcKey &key)
+{
+    if (!key.isValid())
+        return qstrdup("<invalid>");
+
+    const char *type = toString(key.type());
+    const char *text = toString(key.nativeKey());
+    char buf[256];
+    qsnprintf(buf, sizeof(buf), "QNativeIpcKey(%s, %s)", text, type);
+    delete[] type;
+    delete[] text;
+    return qstrdup(buf);
+}
+} // namespace QTest
+QT_END_NAMESPACE
diff --git a/tests/auto/corelib/ipc/qnativeipckey/CMakeLists.txt b/tests/auto/corelib/ipc/qnativeipckey/CMakeLists.txt
new file mode 100644
index 00000000..c52b5d22
--- /dev/null
+++ b/tests/auto/corelib/ipc/qnativeipckey/CMakeLists.txt
@@ -0,0 +1,7 @@
+# Copyright (C) 2022 Intel Corporation.
+# SPDX-License-Identifier: BSD-3-Clause
+
+qt_internal_add_test(tst_qnativeipckey
+    SOURCES
+        tst_qnativeipckey.cpp
+)
diff --git a/tests/auto/corelib/ipc/qnativeipckey/tst_qnativeipckey.cpp b/tests/auto/corelib/ipc/qnativeipckey/tst_qnativeipckey.cpp
new file mode 100644
index 00000000..4653d8bb
--- /dev/null
+++ b/tests/auto/corelib/ipc/qnativeipckey/tst_qnativeipckey.cpp
@@ -0,0 +1,426 @@
+// Copyright (C) 2022 Intel Corporation.
+// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only WITH Qt-GPL-exception-1.0
+
+#include <QtCore/QNativeIpcKey>
+#include <QtTest/QTest>
+
+#include "../ipctestcommon.h"
+
+#if QT_CONFIG(sharedmemory)
+#  include <qsharedmemory.h>
+#endif
+#if QT_CONFIG(systemsemaphore)
+#  include <qsystemsemaphore.h>
+#endif
+
+#if QT_CONFIG(sharedmemory)
+static const auto makeLegacyKey = QSharedMemory::legacyNativeKey;
+#else
+static const auto makeLegacyKey = QSystemSemaphore::legacyNativeKey;
+#endif
+
+using namespace Qt::StringLiterals;
+
+class tst_QNativeIpcKey : public QObject
+{
+    Q_OBJECT
+private slots:
+    void defaultTypes();
+    void construct();
+    void getSetCheck();
+    void equality();
+    void hash();
+    void swap();
+    void toString_data();
+    void toString();
+    void fromString_data();
+    void fromString();
+    void legacyKeys_data();
+    void legacyKeys();
+};
+
+void tst_QNativeIpcKey::defaultTypes()
+{
+    auto isKnown = [](QNativeIpcKey::Type t) {
+        switch (t) {
+        case QNativeIpcKey::Type::SystemV:
+        case QNativeIpcKey::Type::PosixRealtime:
+        case QNativeIpcKey::Type::Windows:
+            return true;
+        }
+        return false;
+    };
+
+    // because the letter Q looked nice in Håvard's Emacs font back in the 1990s
+    static_assert(qToUnderlying(QNativeIpcKey::Type::SystemV) == 'Q',
+            "QNativeIpcKey::Type::SystemV must be equal to the letter Q");
+
+    auto type = QNativeIpcKey::DefaultTypeForOs;
+    auto legacy = QNativeIpcKey::legacyDefaultTypeForOs();
+    QVERIFY(isKnown(type));
+    QVERIFY(isKnown(legacy));
+
+#ifdef Q_OS_WIN
+    QCOMPARE(type, QNativeIpcKey::Type::Windows);
+#else
+    QCOMPARE(type, QNativeIpcKey::Type::PosixRealtime);
+#endif
+
+#if defined(Q_OS_WIN)
+    QCOMPARE(legacy, QNativeIpcKey::Type::Windows);
+#elif defined(QT_POSIX_IPC)
+    QCOMPARE(legacy, QNativeIpcKey::Type::PosixRealtime);
+#elif !defined(Q_OS_DARWIN)
+    QCOMPARE(legacy, QNativeIpcKey::Type::SystemV);
+#endif
+}
+
+void tst_QNativeIpcKey::construct()
+{
+    {
+        QNativeIpcKey invalid(QNativeIpcKey::Type{});
+        QVERIFY(!invalid.isValid());
+    }
+
+    {
+        QNativeIpcKey key;
+        QVERIFY(key.nativeKey().isEmpty());
+        QVERIFY(key.isEmpty());
+        QVERIFY(key.isValid());
+        QCOMPARE(key.type(), QNativeIpcKey::DefaultTypeForOs);
+
+        QNativeIpcKey copy(key);
+        QVERIFY(copy.nativeKey().isEmpty());
+        QVERIFY(copy.isEmpty());
+        QVERIFY(copy.isValid());
+        QCOMPARE(copy.type(), QNativeIpcKey::DefaultTypeForOs);
+
+        QNativeIpcKey moved(std::move(copy));
+        QVERIFY(moved.nativeKey().isEmpty());
+        QVERIFY(moved.isEmpty());
+        QVERIFY(moved.isValid());
+        QCOMPARE(moved.type(), QNativeIpcKey::DefaultTypeForOs);
+
+        key.setType({});
+        key.setNativeKey("something else");
+        key = std::move(moved);
+        QVERIFY(key.nativeKey().isEmpty());
+        QVERIFY(key.isEmpty());
+        QVERIFY(key.isValid());
+        QCOMPARE(key.type(), QNativeIpcKey::DefaultTypeForOs);
+
+        copy.setType({});
+        copy.setNativeKey("something else");
+        copy = key;
+        QVERIFY(copy.nativeKey().isEmpty());
+        QVERIFY(copy.isEmpty());
+        QVERIFY(copy.isValid());
+        QCOMPARE(copy.type(), QNativeIpcKey::DefaultTypeForOs);
+    }
+
+    {
+        QNativeIpcKey key("dummy");
+        QCOMPARE(key.nativeKey(), "dummy");
+        QVERIFY(!key.isEmpty());
+        QVERIFY(key.isValid());
+        QCOMPARE(key.type(), QNativeIpcKey::DefaultTypeForOs);
+
+        QNativeIpcKey copy(key);
+        QCOMPARE(key.nativeKey(), "dummy");
+        QCOMPARE(copy.nativeKey(), "dummy");
+        QVERIFY(!copy.isEmpty());
+        QVERIFY(copy.isValid());
+        QCOMPARE(copy.type(), QNativeIpcKey::DefaultTypeForOs);
+
+        QNativeIpcKey moved(std::move(copy));
+        QCOMPARE(key.nativeKey(), "dummy");
+        QCOMPARE(moved.nativeKey(), "dummy");
+        QVERIFY(!moved.isEmpty());
+        QVERIFY(moved.isValid());
+        QCOMPARE(moved.type(), QNativeIpcKey::DefaultTypeForOs);
+
+        key.setType({});
+        key.setNativeKey("something else");
+        key = std::move(moved);
+        QCOMPARE(key.nativeKey(), "dummy");
+        QVERIFY(!key.isEmpty());
+        QVERIFY(key.isValid());
+        QCOMPARE(key.type(), QNativeIpcKey::DefaultTypeForOs);
+
+        copy.setType({});
+        copy.setNativeKey("something else");
+        copy = key;
+        QCOMPARE(key.nativeKey(), "dummy");
+        QCOMPARE(copy.nativeKey(), "dummy");
+        QVERIFY(!copy.isEmpty());
+        QVERIFY(copy.isValid());
+        QCOMPARE(copy.type(), QNativeIpcKey::DefaultTypeForOs);
+    }
+}
+
+void tst_QNativeIpcKey::getSetCheck()
+{
+    QNativeIpcKey key("key1", QNativeIpcKey::Type::Windows);
+    QVERIFY(key.isValid());
+    QVERIFY(!key.isEmpty());
+    QCOMPARE(key.nativeKey(), "key1");
+    QCOMPARE(key.type(), QNativeIpcKey::Type::Windows);
+
+    key.setType(QNativeIpcKey::Type::SystemV);
+    QVERIFY(key.isValid());
+    QVERIFY(!key.isEmpty());
+    QCOMPARE(key.type(), QNativeIpcKey::Type::SystemV);
+
+    key.setNativeKey("key2");
+    QCOMPARE(key.nativeKey(), "key2");
+}
+
+void tst_QNativeIpcKey::equality()
+{
+    QNativeIpcKey key1, key2;
+    QCOMPARE(key1, key2);
+    QVERIFY(!(key1 != key2));
+
+    key1.setNativeKey("key1");
+    QCOMPARE_NE(key1, key2);
+    QVERIFY(!(key1 == key2));
+
+    key2.setType({});
+    QCOMPARE_NE(key1, key2);
+    QVERIFY(!(key1 == key2));
+
+    key2.setNativeKey(key1.nativeKey());
+    QCOMPARE_NE(key1, key2);
+    QVERIFY(!(key1 == key2));
+
+    key2.setType(QNativeIpcKey::DefaultTypeForOs);
+    QCOMPARE(key1, key2);
+    QVERIFY(!(key1 != key2));
+
+    key1 = makeLegacyKey("key1", QNativeIpcKey::DefaultTypeForOs);
+    QCOMPARE_NE(key1, key2);
+    QVERIFY(!(key1 == key2));
+
+    key2 = key1;
+    QCOMPARE(key1, key2);
+    QVERIFY(!(key1 != key2));
+
+    // just setting the native key won't make them equal again!
+    key2.setNativeKey(key1.nativeKey());
+    QCOMPARE_NE(key1, key2);
+    QVERIFY(!(key1 == key2));
+}
+
+void tst_QNativeIpcKey::hash()
+{
+    QNativeIpcKey key1("key1", QNativeIpcKey::DefaultTypeForOs);
+    QNativeIpcKey key2(key1);
+    QCOMPARE_EQ(qHash(key1), qHash(key2));
+    QCOMPARE_EQ(qHash(key1, 123), qHash(key2, 123));
+}
+
+void tst_QNativeIpcKey::swap()
+{
+    QNativeIpcKey key1("key1", QNativeIpcKey::Type::PosixRealtime);
+    QNativeIpcKey key2("key2", QNativeIpcKey::Type::Windows);
+
+    // self-swaps
+    key1.swap(key1);
+    key2.swap(key2);
+    QCOMPARE(key1.nativeKey(), "key1");
+    QCOMPARE(key1.type(), QNativeIpcKey::Type::PosixRealtime);
+    QCOMPARE(key2.nativeKey(), "key2");
+    QCOMPARE(key2.type(), QNativeIpcKey::Type::Windows);
+
+    key1.swap(key2);
+    QCOMPARE(key2.nativeKey(), "key1");
+    QCOMPARE(key2.type(), QNativeIpcKey::Type::PosixRealtime);
+    QCOMPARE(key1.nativeKey(), "key2");
+    QCOMPARE(key1.type(), QNativeIpcKey::Type::Windows);
+
+    key1.swap(key2);
+    QCOMPARE(key1.nativeKey(), "key1");
+    QCOMPARE(key1.type(), QNativeIpcKey::Type::PosixRealtime);
+    QCOMPARE(key2.nativeKey(), "key2");
+    QCOMPARE(key2.type(), QNativeIpcKey::Type::Windows);
+
+    key1 = makeLegacyKey("key1", QNativeIpcKey::DefaultTypeForOs);
+    QCOMPARE(key1.type(), QNativeIpcKey::DefaultTypeForOs);
+    key1.swap(key2);
+    QCOMPARE(key1.type(), QNativeIpcKey::Type::Windows);
+    QCOMPARE(key2.type(), QNativeIpcKey::DefaultTypeForOs);
+}
+
+void tst_QNativeIpcKey::toString_data()
+{
+    QTest::addColumn<QString>("string");
+    QTest::addColumn<QNativeIpcKey>("key");
+
+    QTest::newRow("invalid") << QString() << QNativeIpcKey(QNativeIpcKey::Type(0));
+
+    auto addRow = [](const char *prefix, QNativeIpcKey::Type type) {
+        auto add = [=](const char *name, QLatin1StringView key, QLatin1StringView encoded = {}) {
+            if (encoded.isNull())
+                encoded = key;
+            QTest::addRow("%s-%s", prefix, name)
+                    << prefix + u":"_s + encoded << QNativeIpcKey(key, type);
+        };
+        add("empty", {});
+        add("text", "foobar"_L1);
+        add("pathlike", "/sometext"_L1);
+        add("objectlike", "Global\\sometext"_L1);
+        add("colon-slash", ":/"_L1);
+        add("slash-colon", "/:"_L1);
+        add("percent", "%"_L1, "%25"_L1);
+        add("question-hash", "?#"_L1, "%3F%23"_L1);
+        add("hash-question", "#?"_L1, "%23%3F"_L1);
+        add("double-slash", "//"_L1, "/%2F"_L1);
+        add("triple-slash", "///"_L1, "/%2F/"_L1);
+        add("non-ascii", "\xe9"_L1);
+        add("non-utf8", "\xa0\xff"_L1);
+        QTest::addRow("%s-%s", prefix, "non-latin1")
+                << prefix + u":\u0100.\u2000.\U00010000"_s
+                << QNativeIpcKey(u"\u0100.\u2000.\U00010000"_s, type);
+    };
+    addRow("systemv", QNativeIpcKey::Type::SystemV);
+    addRow("posix", QNativeIpcKey::Type::PosixRealtime);
+    addRow("windows", QNativeIpcKey::Type::Windows);
+
+    addRow("systemv-1", QNativeIpcKey::Type(1));
+    addRow("systemv-84", QNativeIpcKey::Type('T'));
+    addRow("systemv-255", QNativeIpcKey::Type(0xff));
+}
+
+void tst_QNativeIpcKey::toString()
+{
+    QFETCH(QString, string);
+    QFETCH(QNativeIpcKey, key);
+
+    QCOMPARE(key.toString(), string);
+}
+
+void tst_QNativeIpcKey::fromString_data()
+{
+    toString_data();
+    QTest::addRow("systemv-alias") << "systemv-81:" << QNativeIpcKey(QNativeIpcKey::Type::SystemV);
+    QTest::addRow("systemv-zeropadded") << "systemv-009:" << QNativeIpcKey(QNativeIpcKey::Type(9));
+
+    QNativeIpcKey valid("/foo", QNativeIpcKey::Type::PosixRealtime);
+    QNativeIpcKey invalid(QNativeIpcKey::Type(0));
+
+    // percent-decoding
+    QTest::addRow("percent-encoded") << "posix:%2f%66o%6f" << valid;
+    QTest::addRow("percent-utf8")
+            << "posix:%C4%80.%E2%80%80.%F0%90%80%80"
+            << QNativeIpcKey(u"\u0100.\u2000.\U00010000"_s, QNativeIpcKey::Type::PosixRealtime);
+
+    // fragments are ignored
+    QTest::addRow("with-fragment") << "posix:/foo#bar" << valid;
+    QTest::addRow("with-fragmentquery") << "posix:/foo#bar?baz" << valid;
+
+    // but unknown query items are not
+    QTest::addRow("with-query") << "posix:/foo?bar" << invalid;
+    QTest::addRow("with-queryfragment") << "posix:/foo?bar#baz" << invalid;
+
+    // add some ones that won't parse well
+    QTest::addRow("positive-number") << "81" << invalid;
+    QTest::addRow("negative-number") << "-81" << invalid;
+    QTest::addRow("invalidprefix") << "invalidprefix:" << invalid;
+    QTest::addRow("systemv-nodash") << "systemv255" << invalid;
+    QTest::addRow("systemv-doubledash") << "systemv--255:" << invalid;
+    QTest::addRow("systemv-plus") << "systemv+255" << invalid;
+    QTest::addRow("systemv-hex") << "systemv-0x01:" << invalid;
+    QTest::addRow("systemv-too-low") << "systemv-0:" << invalid;
+    QTest::addRow("systemv-too-high") << "systemv-256" << invalid;
+    QTest::addRow("systemv-overflow-15bit") << "systemv-32769:" << invalid;
+    QTest::addRow("systemv-overflow-16bit") << "systemv-65537:" << invalid;
+    QTest::addRow("systemv-overflow-31bit") << "systemv-2147483649:" << invalid;
+    QTest::addRow("systemv-overflow-32bit") << "systemv-4294967297:" << invalid;
+
+    auto addRows = [=](const char *name) {
+        QTest::addRow("%s-nocolon", name) << name << invalid;
+        QTest::addRow("%s-junk", name) << name + u"junk"_s << invalid;
+        QTest::addRow("junk-%s-colon", name) << u"junk:"_s + name + u':' << invalid;
+    };
+    addRows("systemv");
+    addRows("posix");
+    addRows("windows");
+    addRows("systemv-1");
+    addRows("systemv-255");
+}
+
+void tst_QNativeIpcKey::fromString()
+{
+    QFETCH(QString, string);
+    QFETCH(QNativeIpcKey, key);
+
+    QCOMPARE(QNativeIpcKey::fromString(string), key);
+}
+
+void tst_QNativeIpcKey::legacyKeys_data()
+{
+    QTest::addColumn<QNativeIpcKey::Type>("type");
+    QTest::addColumn<QString>("legacyKey");
+    auto addRows = [](QNativeIpcKey::Type type) {
+        const char *label = "<unknown-type>";
+        switch (type) {
+        case QNativeIpcKey::Type::SystemV:
+            label = "systemv";
+            break;
+        case QNativeIpcKey::Type::PosixRealtime:
+            label = "posix";
+            break;
+        case QNativeIpcKey::Type::Windows:
+            label = "windows";
+            break;
+        }
+        auto add = [=](const char *name, const QString &legacyKey) {
+            QTest::addRow("%s-%s", label, name) << type << legacyKey;
+        };
+        add("empty", {});
+        add("text", "foobar"_L1);
+        add("pathlike", "/sometext"_L1);
+        add("objectlike", "Global\\sometext"_L1);
+        add("colon-slash", ":/"_L1);
+        add("slash-colon", "/:"_L1);
+        add("percent", "%"_L1);
+        add("question-hash", "?#"_L1);
+        add("hash-question", "#?"_L1);
+        add("double-slash", "//"_L1);
+        add("triple-slash", "///"_L1);
+        add("non-ascii", "\xe9"_L1);
+        add("non-utf8", "\xa0\xff"_L1);
+        add("non-latin1", u":\u0100.\u2000.\U00010000"_s);
+    };
+
+    addRows(QNativeIpcKey::DefaultTypeForOs);
+    if (auto type = QNativeIpcKey::legacyDefaultTypeForOs();
+            type != QNativeIpcKey::DefaultTypeForOs)
+        addRows(type);
+}
+
+void tst_QNativeIpcKey::legacyKeys()
+{
+    QFETCH(QNativeIpcKey::Type, type);
+    QFETCH(QString, legacyKey);
+
+    QNativeIpcKey key = makeLegacyKey(legacyKey, type);
+    QCOMPARE(key.type(), type);
+
+    QString string = key.toString();
+    QNativeIpcKey key2 = QNativeIpcKey::fromString(string);
+    QCOMPARE(key2, key);
+
+    if (!legacyKey.isEmpty()) {
+        // confirm it shows up in the encoded form
+        Q_ASSERT(!legacyKey.contains(u'&'));    // needs extra encoding
+        QUrl u;
+        u.setQuery("legacyKey="_L1 + legacyKey, QUrl::DecodedMode);
+        QString encodedLegacyKey = u.toString(QUrl::RemoveScheme | QUrl::RemoveAuthority
+                                              | QUrl::DecodeReserved);
+        QVERIFY2(string.contains(encodedLegacyKey), qPrintable(string));
+    }
+}
+
+QTEST_MAIN(tst_QNativeIpcKey)
+#include "tst_qnativeipckey.moc"
diff --git a/tests/auto/corelib/ipc/qsharedmemory/CMakeLists.txt b/tests/auto/corelib/ipc/qsharedmemory/CMakeLists.txt
new file mode 100644
index 00000000..da87d1c7
--- /dev/null
+++ b/tests/auto/corelib/ipc/qsharedmemory/CMakeLists.txt
@@ -0,0 +1,21 @@
+# Copyright (C) 2022 The Qt Company Ltd.
+# SPDX-License-Identifier: BSD-3-Clause
+
+qt_internal_add_test(tst_qsharedmemory
+    SOURCES
+        tst_qsharedmemory.cpp
+    LIBRARIES
+        Qt::CorePrivate
+)
+
+## Scopes:
+#####################################################################
+
+qt_internal_extend_target(tst_qsharedmemory CONDITION LINUX
+    LIBRARIES
+        rt
+)
+add_subdirectory(producerconsumer)
+if(QT_FEATURE_process)
+    add_dependencies(tst_qsharedmemory producerconsumer_helper)
+endif()
diff --git a/tests/auto/corelib/kernel/qsharedmemory/producerconsumer/CMakeLists.txt b/tests/auto/corelib/ipc/qsharedmemory/producerconsumer/CMakeLists.txt
similarity index 100%
rename from tests/auto/corelib/kernel/qsharedmemory/producerconsumer/CMakeLists.txt
rename to tests/auto/corelib/ipc/qsharedmemory/producerconsumer/CMakeLists.txt
diff --git a/tests/auto/corelib/kernel/qsharedmemory/producerconsumer/main.cpp b/tests/auto/corelib/ipc/qsharedmemory/producerconsumer/main.cpp
similarity index 87%
rename from tests/auto/corelib/kernel/qsharedmemory/producerconsumer/main.cpp
rename to tests/auto/corelib/ipc/qsharedmemory/producerconsumer/main.cpp
index 6dc4fde7..4b30c066 100644
--- a/tests/auto/corelib/kernel/qsharedmemory/producerconsumer/main.cpp
+++ b/tests/auto/corelib/ipc/qsharedmemory/producerconsumer/main.cpp
@@ -17,10 +17,9 @@ QChar get(QSharedMemory &sm, int i)
     return QChar::fromLatin1(((char*)sm.data())[i]);
 }
 
-int readonly_segfault()
+int readonly_segfault(const QNativeIpcKey &key)
 {
-    QSharedMemory sharedMemory;
-    sharedMemory.setKey("readonly_segfault");
+    QSharedMemory sharedMemory(key);
     sharedMemory.create(1024, QSharedMemory::ReadOnly);
     sharedMemory.lock();
     set(sharedMemory, 0, 'a');
@@ -28,10 +27,9 @@ int readonly_segfault()
     return EXIT_SUCCESS;
 }
 
-int producer()
+int producer(const QNativeIpcKey &key)
 {
-    QSharedMemory producer;
-    producer.setKey("market");
+    QSharedMemory producer(key);
 
     int size = 1024;
     if (!producer.create(size)) {
@@ -100,10 +98,9 @@ int producer()
     return EXIT_SUCCESS;
 }
 
-int consumer()
+int consumer(const QNativeIpcKey &key)
 {
-    QSharedMemory consumer;
-    consumer.setKey("market");
+    QSharedMemory consumer(key);
 
     //qDebug("consumer starting");
     int tries = 0;
@@ -155,17 +152,21 @@ int main(int argc, char *argv[])
     QCoreApplication app(argc, argv);
 
     QStringList arguments = app.arguments();
-    if (app.arguments().size() != 2) {
-        qWarning("Please call the helper with the function to call as argument");
+    if (app.arguments().size() != 3) {
+        fprintf(stderr, "Usage: %s <mode> <key>\n"
+                "<mode> is one of: readonly_segfault, producer, consumer\n",
+                argv[0]);
         return EXIT_FAILURE;
     }
     QString function = arguments.at(1);
+    QNativeIpcKey key = QNativeIpcKey::fromString(arguments.at(2));
+
     if (function == QLatin1String("readonly_segfault"))
-        return readonly_segfault();
+        return readonly_segfault(key);
     else if (function == QLatin1String("producer"))
-        return producer();
+        return producer(key);
     else if (function == QLatin1String("consumer"))
-        return consumer();
+        return consumer(key);
     else
         qWarning() << "Unknown function" << arguments.at(1);
 
diff --git a/tests/auto/corelib/kernel/qsharedmemory/tst_qsharedmemory.cpp b/tests/auto/corelib/ipc/qsharedmemory/tst_qsharedmemory.cpp
similarity index 69%
rename from tests/auto/corelib/kernel/qsharedmemory/tst_qsharedmemory.cpp
rename to tests/auto/corelib/ipc/qsharedmemory/tst_qsharedmemory.cpp
index 2bf8a74a..4c871e02 100644
--- a/tests/auto/corelib/kernel/qsharedmemory/tst_qsharedmemory.cpp
+++ b/tests/auto/corelib/ipc/qsharedmemory/tst_qsharedmemory.cpp
@@ -1,4 +1,5 @@
 // Copyright (C) 2016 The Qt Company Ltd.
+// Copyright (C) 2022 Intel Corporation.
 // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only WITH Qt-GPL-exception-1.0
 
 #include <QDebug>
@@ -11,51 +12,55 @@
 #include <QThread>
 #include <QElapsedTimer>
 
-#define EXISTING_SHARE "existing"
+#include <errno.h>
+#include <stdio.h>
+#ifdef Q_OS_UNIX
+#  include <unistd.h>
+#endif
+
+#include "private/qtcore-config_p.h"
+#include "../ipctestcommon.h"
+
 #define EXISTING_SIZE 1024
 
 Q_DECLARE_METATYPE(QSharedMemory::SharedMemoryError)
 Q_DECLARE_METATYPE(QSharedMemory::AccessMode)
 
+using namespace Qt::StringLiterals;
+
 class tst_QSharedMemory : public QObject
 {
     Q_OBJECT
 
-public:
-    tst_QSharedMemory();
-    virtual ~tst_QSharedMemory();
-
 public Q_SLOTS:
+    void initTestCase();
     void init();
     void cleanup();
 
-
 private slots:
     // basics
     void constructor();
-    void key_data();
-    void key();
+    void nativeKey_data();
+    void nativeKey();
+    void legacyKey_data() { nativeKey_data(); }
+    void legacyKey();
     void create_data();
     void create();
     void attach_data();
     void attach();
+    void changeKeyType_data() { attach_data(); }
+    void changeKeyType();
     void lock();
 
     // custom edge cases
-#ifndef Q_OS_HPUX
     void removeWhileAttached();
-#endif
     void emptyMemory();
-#if !defined(Q_OS_WIN)
     void readOnly();
-#endif
 
     // basics all together
-#ifndef Q_OS_HPUX
     void simpleProducerConsumer_data();
     void simpleProducerConsumer();
     void simpleDoubleProducerConsumer();
-#endif
 
     // with threads
     void simpleThreadedProducerConsumer_data();
@@ -67,52 +72,61 @@ private slots:
 
     // extreme cases
     void useTooMuchMemory();
-#if !defined(Q_OS_HPUX)
     void attachTooMuch();
-#endif
 
     // unique keys
     void uniqueKey_data();
     void uniqueKey();
 
 protected:
-    int remove(const QString &key);
+    void remove(const QNativeIpcKey &key);
 
-    QString rememberKey(const QString &key)
+    QString mangleKey(QStringView key)
     {
-        if (key == EXISTING_SHARE)
-            return key;
-        if (!keys.contains(key)) {
-            keys.append(key);
-            remove(key);
-        }
-        return key;
+        if (key.isEmpty())
+            return key.toString();
+        return u"tstshm_%1-%2_%3"_s.arg(QCoreApplication::applicationPid())
+                .arg(seq).arg(key);
     }
 
-    QStringList keys;
+    QNativeIpcKey platformSafeKey(const QString &key)
+    {
+        QFETCH_GLOBAL(QNativeIpcKey::Type, keyType);
+        return QSharedMemory::platformSafeKey(mangleKey(key), keyType);
+    }
+
+    QNativeIpcKey rememberKey(const QString &key)
+    {
+        QNativeIpcKey ipcKey = platformSafeKey(key);
+        if (!keys.contains(ipcKey)) {
+            keys.append(ipcKey);
+            remove(ipcKey);
+        }
+        return ipcKey;
+    }
+
+    QList<QNativeIpcKey> keys;
     QList<QSharedMemory*> jail;
-    QSharedMemory *existingSharedMemory;
+    QSharedMemory *existingSharedMemory = nullptr;
+    int seq = 0;
 
 private:
-    const QString m_helperBinary;
+    const QString m_helperBinary = "./producerconsumer_helper";
 };
 
-tst_QSharedMemory::tst_QSharedMemory()
-    : existingSharedMemory(0)
-    , m_helperBinary("./producerconsumer_helper")
-{
-}
-
-tst_QSharedMemory::~tst_QSharedMemory()
+void tst_QSharedMemory::initTestCase()
 {
+    IpcTestCommon::addGlobalTestRows<QSharedMemory>();
 }
 
 void tst_QSharedMemory::init()
 {
-    existingSharedMemory = new QSharedMemory(EXISTING_SHARE);
+    QNativeIpcKey key = platformSafeKey("existing");
+    existingSharedMemory = new QSharedMemory(key);
     if (!existingSharedMemory->create(EXISTING_SIZE)) {
         QCOMPARE(existingSharedMemory->error(), QSharedMemory::AlreadyExists);
     }
+    keys.append(key);
 }
 
 void tst_QSharedMemory::cleanup()
@@ -121,7 +135,6 @@ void tst_QSharedMemory::cleanup()
     qDeleteAll(jail.begin(), jail.end());
     jail.clear();
 
-    keys.append(EXISTING_SHARE);
     for (int i = 0; i < keys.size(); ++i) {
         QSharedMemory sm(keys.at(i));
         if (!sm.create(1024)) {
@@ -129,70 +142,76 @@ void tst_QSharedMemory::cleanup()
             //    qWarning() << "test cleanup: remove failed:" << keys.at(i) << sm.error() << sm.errorString();
             sm.attach();
             sm.detach();
-            remove(keys.at(i));
         }
+        remove(keys.at(i));
     }
+    ++seq;
 }
 
-#ifndef Q_OS_WIN
-#include <private/qsharedmemory_p.h>
+#if QT_CONFIG(posix_shm)
+#include <sys/types.h>
+#include <sys/mman.h>
+#endif
+#if QT_CONFIG(sysv_shm)
 #include <sys/types.h>
-#ifndef QT_POSIX_IPC
 #include <sys/ipc.h>
 #include <sys/shm.h>
-#else
-#include <sys/mman.h>
-#endif // QT_POSIX_IPC
-#include <errno.h>
 #endif
 
-int tst_QSharedMemory::remove(const QString &key)
+void tst_QSharedMemory::remove(const QNativeIpcKey &key)
 {
-#ifdef Q_OS_WIN
-    Q_UNUSED(key);
-    return 0;
-#else
-    // On unix the shared memory might exists from a previously failed test
+    // On Unix, the shared memory might exist from a previously failed test
     // or segfault, remove it it does
     if (key.isEmpty())
-        return -1;
+        return;
 
-    QString fileName = QSharedMemoryPrivate::makePlatformSafeKey(key);
+    switch (key.type()) {
+    case QNativeIpcKey::Type::Windows:
+        return;
 
-#ifndef QT_POSIX_IPC
-    // ftok requires that an actual file exists somewhere
-    if (!QFile::exists(fileName)) {
-        //qDebug() << "exits failed";
-        return -2;
+    case QNativeIpcKey::Type::PosixRealtime:
+#if QT_CONFIG(posix_shm)
+        if (shm_unlink(QFile::encodeName(key.nativeKey()).constData()) == -1) {
+            if (errno != ENOENT) {
+                perror("shm_unlink");
+                return;
+            }
+        }
+#endif
+        return;
+
+    case QNativeIpcKey::Type::SystemV:
+        break;
     }
 
-    int unix_key = ftok(fileName.toLatin1().constData(), 'Q');
+#if QT_CONFIG(sysv_shm)
+    // ftok requires that an actual file exists somewhere
+    QString fileName = key.nativeKey();
+    if (!QFile::exists(fileName)) {
+        //qDebug() << "exits failed";
+        return;
+    }
+
+    int unix_key = ftok(fileName.toLatin1().constData(), int(key.type()));
     if (-1 == unix_key) {
-        qDebug() << "ftok failed";
-        return -3;
+        perror("ftok");
+        return;
     }
 
     int id = shmget(unix_key, 0, 0600);
     if (-1 == id) {
-        qDebug() << "shmget failed" << strerror(errno);
-        return -4;
+        if (errno != ENOENT)
+            perror("shmget");
+        return;
     }
 
     struct shmid_ds shmid_ds;
     if (-1 == shmctl(id, IPC_RMID, &shmid_ds)) {
-        qDebug() << "shmctl failed";
-        return -5;
+        perror("shmctl");
+        return;
     }
-#else
-    if (shm_unlink(QFile::encodeName(fileName).constData()) == -1) {
-        if (errno != ENOENT) {
-            qDebug() << "shm_unlink failed";
-            return -5;
-        }
-    }
-#endif // QT_POSIX_IPC
 
-    return QFile::remove(fileName);
+    QFile::remove(fileName);
 #endif // Q_OS_WIN
 }
 
@@ -202,19 +221,25 @@ int tst_QSharedMemory::remove(const QString &key)
 void tst_QSharedMemory::constructor()
 {
     QSharedMemory sm;
-    QCOMPARE(sm.key(), QString());
     QVERIFY(!sm.isAttached());
     QVERIFY(!sm.data());
+    QCOMPARE(sm.nativeKey(), QString());
+    QCOMPARE(sm.nativeIpcKey(), QNativeIpcKey());
     QCOMPARE(sm.size(), 0);
     QCOMPARE(sm.error(), QSharedMemory::NoError);
     QCOMPARE(sm.errorString(), QString());
+
+    QT_WARNING_PUSH
+    QT_WARNING_DISABLE_DEPRECATED
+    QCOMPARE(sm.key(), QString());
+    QT_WARNING_POP
 }
 
-void tst_QSharedMemory::key_data()
+void tst_QSharedMemory::nativeKey_data()
 {
     QTest::addColumn<QString>("constructorKey");
     QTest::addColumn<QString>("setKey");
-    QTest::addColumn<QString>("setNativeKey");
+    QTest::addColumn<QString>("setNativeKey");   // only used in the legacyKey test
 
     QTest::newRow("null, null, null") << QString() << QString() << QString();
     QTest::newRow("one, null, null") << QString("one") << QString() << QString();
@@ -230,12 +255,62 @@ void tst_QSharedMemory::key_data()
 /*!
     Basic key testing
  */
-void tst_QSharedMemory::key()
+void tst_QSharedMemory::nativeKey()
 {
     QFETCH(QString, constructorKey);
     QFETCH(QString, setKey);
     QFETCH(QString, setNativeKey);
 
+    QNativeIpcKey constructorIpcKey = platformSafeKey(constructorKey);
+    QNativeIpcKey setIpcKey = platformSafeKey(setKey);
+
+    QSharedMemory sm(constructorIpcKey);
+    QCOMPARE(sm.nativeIpcKey(), constructorIpcKey);
+    QCOMPARE(sm.nativeKey(), constructorIpcKey.nativeKey());
+    sm.setNativeKey(setIpcKey);
+    QCOMPARE(sm.nativeIpcKey(), setIpcKey);
+    QCOMPARE(sm.nativeKey(), setIpcKey.nativeKey());
+
+    QCOMPARE(sm.isAttached(), false);
+
+    QCOMPARE(sm.error(), QSharedMemory::NoError);
+    QCOMPARE(sm.errorString(), QString());
+    QVERIFY(!sm.data());
+    QCOMPARE(sm.size(), 0);
+
+    QCOMPARE(sm.detach(), false);
+
+    // change the key type
+    QNativeIpcKey::Type nextKeyType = IpcTestCommon::nextKeyType(setIpcKey.type());
+    if (nextKeyType != setIpcKey.type()) {
+        QNativeIpcKey setIpcKey2 = QSharedMemory::platformSafeKey(setKey, nextKeyType);
+        sm.setNativeKey(setIpcKey2);
+
+        QCOMPARE(sm.nativeIpcKey(), setIpcKey2);
+        QCOMPARE(sm.nativeKey(), setIpcKey2.nativeKey());
+
+        QCOMPARE(sm.isAttached(), false);
+
+        QCOMPARE(sm.error(), QSharedMemory::NoError);
+        QCOMPARE(sm.errorString(), QString());
+        QVERIFY(!sm.data());
+        QCOMPARE(sm.size(), 0);
+
+        QCOMPARE(sm.detach(), false);
+    }
+}
+
+QT_WARNING_PUSH
+QT_WARNING_DISABLE_DEPRECATED
+void tst_QSharedMemory::legacyKey()
+{
+    QFETCH(QString, constructorKey);
+    QFETCH(QString, setKey);
+    QFETCH(QString, setNativeKey);
+
+#ifdef Q_OS_QNX
+    QSKIP("The legacy native key type is incorrectly set on QNX");
+#endif
     QSharedMemory sm(constructorKey);
     QCOMPARE(sm.key(), constructorKey);
     QCOMPARE(sm.nativeKey().isEmpty(), constructorKey.isEmpty());
@@ -254,6 +329,7 @@ void tst_QSharedMemory::key()
 
     QCOMPARE(sm.detach(), false);
 }
+QT_WARNING_POP
 
 void tst_QSharedMemory::create_data()
 {
@@ -268,7 +344,7 @@ void tst_QSharedMemory::create_data()
         << false << QSharedMemory::InvalidSize;
     QTest::newRow("nor size") << QString("norsize") << 1024
         << true << QSharedMemory::NoError;
-    QTest::newRow("already exists") << QString(EXISTING_SHARE) << EXISTING_SIZE
+    QTest::newRow("existing") << QString("existing") << EXISTING_SIZE
         << false << QSharedMemory::AlreadyExists;
 }
 
@@ -282,11 +358,12 @@ void tst_QSharedMemory::create()
     QFETCH(bool, canCreate);
     QFETCH(QSharedMemory::SharedMemoryError, error);
 
-    QSharedMemory sm(rememberKey(key));
+    QNativeIpcKey nativeKey = rememberKey(key);
+    QSharedMemory sm(nativeKey);
     QCOMPARE(sm.create(size), canCreate);
     if (sm.error() != error)
         qDebug() << sm.errorString();
-    QCOMPARE(sm.key(), key);
+    QCOMPARE(sm.nativeIpcKey(), nativeKey);
     if (canCreate) {
         QCOMPARE(sm.errorString(), QString());
         QVERIFY(sm.data() != 0);
@@ -303,13 +380,10 @@ void tst_QSharedMemory::attach_data()
     QTest::addColumn<bool>("exists");
     QTest::addColumn<QSharedMemory::SharedMemoryError>("error");
 
-    QTest::newRow("null key") << QString() << false << QSharedMemory::KeyError;
-    QTest::newRow("doesn't exists") << QString("doesntexists") << false << QSharedMemory::NotFound;
+    QTest::newRow("null") << QString() << false << QSharedMemory::KeyError;
+    QTest::newRow("doesntexists") << QString("doesntexist") << false << QSharedMemory::NotFound;
 
-    // HPUX doesn't allow for multiple attaches per process.
-#ifndef Q_OS_HPUX
-    QTest::newRow("already exists") << QString(EXISTING_SHARE) << true << QSharedMemory::NoError;
-#endif
+    QTest::newRow("existing") << QString("existing") << true << QSharedMemory::NoError;
 }
 
 /*!
@@ -321,11 +395,12 @@ void tst_QSharedMemory::attach()
     QFETCH(bool, exists);
     QFETCH(QSharedMemory::SharedMemoryError, error);
 
-    QSharedMemory sm(key);
+    QNativeIpcKey nativeKey = platformSafeKey(key);
+    QSharedMemory sm(nativeKey);
     QCOMPARE(sm.attach(), exists);
     QCOMPARE(sm.isAttached(), exists);
     QCOMPARE(sm.error(), error);
-    QCOMPARE(sm.key(), key);
+    QCOMPARE(sm.nativeIpcKey(), nativeKey);
     if (exists) {
         QVERIFY(sm.data() != 0);
         QVERIFY(sm.size() != 0);
@@ -346,13 +421,41 @@ void tst_QSharedMemory::attach()
     }
 }
 
+void tst_QSharedMemory::changeKeyType()
+{
+    QFETCH(QString, key);
+    QFETCH(bool, exists);
+    QFETCH(QSharedMemory::SharedMemoryError, error);
+
+    QNativeIpcKey nativeKey = platformSafeKey(key);
+    QNativeIpcKey::Type nextKeyType = IpcTestCommon::nextKeyType(nativeKey.type());
+    if (nextKeyType == nativeKey.type())
+        QSKIP("System only supports one key type");
+//    qDebug() << "Changing from" << nativeKey.type() << "to" << nextKeyType;
+
+    QSharedMemory sm(nativeKey);
+    QCOMPARE(sm.attach(), exists);
+    QCOMPARE(sm.error(), error);
+
+    QNativeIpcKey nextKey =
+            QSharedMemory::platformSafeKey(mangleKey(key), nextKeyType);
+    sm.setNativeKey(nextKey);
+    QCOMPARE(sm.isAttached(), false);
+    QVERIFY(!sm.attach());
+
+    if (exists)
+        QCOMPARE(sm.error(), QSharedMemory::NotFound);
+    else
+        QCOMPARE(sm.error(), error);
+}
+
 void tst_QSharedMemory::lock()
 {
     QSharedMemory shm;
     QVERIFY(!shm.lock());
     QCOMPARE(shm.error(), QSharedMemory::LockError);
 
-    shm.setKey(rememberKey(QLatin1String("qsharedmemory")));
+    shm.setNativeKey(rememberKey(QLatin1String("qsharedmemory")));
 
     QVERIFY(!shm.lock());
     QCOMPARE(shm.error(), QSharedMemory::LockError);
@@ -370,18 +473,18 @@ void tst_QSharedMemory::lock()
     but new shared memory are not allowed to attach after a remove.
  */
 // HPUX doesn't allow for multiple attaches per process.
-#ifndef Q_OS_HPUX
 void tst_QSharedMemory::removeWhileAttached()
 {
     rememberKey("one");
 
     // attach 1
-    QSharedMemory *smOne = new QSharedMemory(QLatin1String("one"));
+    QNativeIpcKey keyOne = platformSafeKey("one");
+    QSharedMemory *smOne = new QSharedMemory(keyOne);
     QVERIFY(smOne->create(1024));
     QVERIFY(smOne->isAttached());
 
     // attach 2
-    QSharedMemory *smTwo = new QSharedMemory(QLatin1String("one"));
+    QSharedMemory *smTwo = new QSharedMemory(platformSafeKey("one"));
     QVERIFY(smTwo->attach());
     QVERIFY(smTwo->isAttached());
 
@@ -389,17 +492,16 @@ void tst_QSharedMemory::removeWhileAttached()
     delete smOne;
     delete smTwo;
 
-#ifdef QT_POSIX_IPC
-    // POSIX IPC doesn't guarantee that the shared memory is removed
-    remove("one");
-#endif
+    if (keyOne.type() == QNativeIpcKey::Type::PosixRealtime) {
+        // POSIX IPC doesn't guarantee that the shared memory is removed
+        remove(keyOne);
+    }
 
     // three shouldn't be able to attach
-    QSharedMemory smThree(QLatin1String("one"));
+    QSharedMemory smThree(keyOne);
     QVERIFY(!smThree.attach());
     QCOMPARE(smThree.error(), QSharedMemory::NotFound);
 }
-#endif
 
 /*!
     The memory should be set to 0 after created.
@@ -419,27 +521,27 @@ void tst_QSharedMemory::emptyMemory()
     Verify that attach with ReadOnly is actually read only
     by writing to data and causing a segfault.
 */
-// This test opens a crash dialog on Windows.
-#if !defined(Q_OS_WIN)
 void tst_QSharedMemory::readOnly()
 {
 #if !QT_CONFIG(process)
     QSKIP("No qprocess support", SkipAll);
 #elif defined(Q_OS_MACOS)
     QSKIP("QTBUG-59936: Times out on macOS", SkipAll);
+#elif defined(Q_OS_WIN)
+    QSKIP("This test opens a crash dialog on Windows.");
 #elif defined(__SANITIZE_ADDRESS__) || __has_feature(address_sanitizer)
     QSKIP("ASan prevents the crash this test is looking for.", SkipAll);
 #else
-    rememberKey("readonly_segfault");
+    QNativeIpcKey key = rememberKey("readonly_segfault");
+
     // ### on windows disable the popup somehow
     QProcess p;
-    p.start(m_helperBinary, QStringList("readonly_segfault"));
     p.setProcessChannelMode(QProcess::ForwardedChannels);
+    p.start(m_helperBinary, { "readonly_segfault", key.toString() });
     p.waitForFinished();
     QCOMPARE(p.error(), QProcess::Crashed);
 #endif
 }
-#endif
 
 /*!
     Keep making shared memory until the kernel stops us.
@@ -451,7 +553,8 @@ void tst_QSharedMemory::useTooMuchMemory()
     int count = 0;
     while (success) {
         QString key = QLatin1String("maxmemorytest_") + QString::number(count++);
-        QSharedMemory *sm = new QSharedMemory(rememberKey(key));
+        QNativeIpcKey nativeKey = rememberKey(key);
+        QSharedMemory *sm = new QSharedMemory(nativeKey);
         QVERIFY(sm);
         jail.append(sm);
         int size = 32768 * 1024;
@@ -465,7 +568,7 @@ void tst_QSharedMemory::useTooMuchMemory()
 
         if (!success) {
             QVERIFY(!sm->isAttached());
-            QCOMPARE(sm->key(), key);
+            QCOMPARE(sm->nativeIpcKey(), nativeKey);
             QCOMPARE(sm->size(), 0);
             QVERIFY(!sm->data());
             if (sm->error() != QSharedMemory::OutOfResources)
@@ -487,8 +590,6 @@ void tst_QSharedMemory::useTooMuchMemory()
     Create one shared memory (government) and see how many other shared memories (wars) we can
     attach before the system runs out of resources.
  */
-// HPUX doesn't allow for multiple attaches per process.
-#if !defined(Q_OS_HPUX)
 void tst_QSharedMemory::attachTooMuch()
 {
     QSKIP("disabled");
@@ -496,12 +597,12 @@ void tst_QSharedMemory::attachTooMuch()
     QSharedMemory government(rememberKey("government"));
     QVERIFY(government.create(1024));
     while (true) {
-        QSharedMemory *war = new QSharedMemory(government.key());
+        QSharedMemory *war = new QSharedMemory(government.nativeIpcKey());
         QVERIFY(war);
         jail.append(war);
         if (!war->attach()) {
             QVERIFY(!war->isAttached());
-            QCOMPARE(war->key(), government.key());
+            QCOMPARE(war->nativeIpcKey(), government.nativeIpcKey());
             QCOMPARE(war->size(), 0);
             QVERIFY(!war->data());
             QCOMPARE(war->error(), QSharedMemory::OutOfResources);
@@ -513,10 +614,7 @@ void tst_QSharedMemory::attachTooMuch()
         }
     }
 }
-#endif
 
-// HPUX doesn't allow for multiple attaches per process.
-#ifndef Q_OS_HPUX
 void tst_QSharedMemory::simpleProducerConsumer_data()
 {
     QTest::addColumn<QSharedMemory::AccessMode>("mode");
@@ -537,8 +635,8 @@ void tst_QSharedMemory::simpleProducerConsumer()
     QFETCH(QSharedMemory::AccessMode, mode);
 
     rememberKey(QLatin1String("market"));
-    QSharedMemory producer(QLatin1String("market"));
-    QSharedMemory consumer(QLatin1String("market"));
+    QSharedMemory producer(platformSafeKey("market"));
+    QSharedMemory consumer(platformSafeKey("market"));
     int size = 512;
     QVERIFY(producer.create(size));
     QVERIFY(consumer.attach(mode));
@@ -554,37 +652,37 @@ void tst_QSharedMemory::simpleProducerConsumer()
     }
     QVERIFY(consumer.detach());
 }
-#endif
 
-// HPUX doesn't allow for multiple attaches per process.
-#ifndef Q_OS_HPUX
 void tst_QSharedMemory::simpleDoubleProducerConsumer()
 {
-    rememberKey(QLatin1String("market"));
-    QSharedMemory producer(QLatin1String("market"));
+    QNativeIpcKey nativeKey = rememberKey(QLatin1String("market"));
+    QSharedMemory producer(nativeKey);
     int size = 512;
     QVERIFY(producer.create(size));
     QVERIFY(producer.detach());
-#ifdef QT_POSIX_IPC
-    // POSIX IPC doesn't guarantee that the shared memory is removed
-    remove("market");
-#endif
+
+    if (nativeKey.type() == QNativeIpcKey::Type::PosixRealtime) {
+        // POSIX IPC doesn't guarantee that the shared memory is removed
+        remove(nativeKey);
+    }
+
     QVERIFY(producer.create(size));
 
     {
-        QSharedMemory consumer(QLatin1String("market"));
+        QSharedMemory consumer(nativeKey);
         QVERIFY(consumer.attach());
     }
 }
-#endif
 
 class Consumer : public QThread
 {
-
 public:
+    QNativeIpcKey nativeKey;
+    Consumer(const QNativeIpcKey &nativeKey) : nativeKey(nativeKey) {}
+
     void run() override
     {
-        QSharedMemory consumer(QLatin1String("market"));
+        QSharedMemory consumer(nativeKey);
         while (!consumer.attach()) {
             if (consumer.error() != QSharedMemory::NotFound)
                 qDebug() << "consumer: failed to connect" << consumer.error() << consumer.errorString();
@@ -615,9 +713,8 @@ public:
 
 class Producer : public QThread
 {
-
 public:
-    Producer() : producer(QLatin1String("market"))
+    Producer(const QNativeIpcKey &nativeKey) : producer(nativeKey)
     {
         int size = 1024;
         if (!producer.create(size)) {
@@ -682,16 +779,16 @@ void tst_QSharedMemory::simpleThreadedProducerConsumer()
 {
     QFETCH(bool, producerIsThread);
     QFETCH(int, threads);
-    rememberKey(QLatin1String("market"));
+    QNativeIpcKey nativeKey = rememberKey(QLatin1String("market"));
 
-    Producer p;
+    Producer p(nativeKey);
     QVERIFY(p.producer.isAttached());
     if (producerIsThread)
         p.start();
 
     QList<Consumer*> consumers;
     for (int i = 0; i < threads; ++i) {
-        consumers.append(new Consumer());
+        consumers.append(new Consumer(nativeKey));
         consumers.last()->start();
     }
 
@@ -730,17 +827,17 @@ void tst_QSharedMemory::simpleProcessProducerConsumer()
 
     QSKIP("This test is unstable: QTBUG-25655");
 
-    rememberKey("market");
+    QNativeIpcKey nativeKey = rememberKey("market");
 
     QProcess producer;
-    producer.start(m_helperBinary, QStringList("producer"));
+    producer.start(m_helperBinary, { "producer", nativeKey.toString() });
     QVERIFY2(producer.waitForStarted(), "Could not start helper binary");
     QVERIFY2(producer.waitForReadyRead(), "Helper process failed to create shared memory segment: " +
              producer.readAllStandardError());
 
     QList<QProcess*> consumers;
     unsigned int failedProcesses = 0;
-    const QStringList consumerArguments = QStringList("consumer");
+    QStringList consumerArguments = { "consumer", nativeKey.toString() };
     for (int i = 0; i < processes; ++i) {
         QProcess *p = new QProcess;
         p->setProcessChannelMode(QProcess::ForwardedChannels);
@@ -791,11 +888,11 @@ void tst_QSharedMemory::uniqueKey()
     QFETCH(QString, key1);
     QFETCH(QString, key2);
 
-    QSharedMemory sm1(key1);
-    QSharedMemory sm2(key2);
+    QSharedMemory sm1(platformSafeKey(key1));
+    QSharedMemory sm2(platformSafeKey(key2));
 
     bool setEqual = (key1 == key2);
-    bool keyEqual = (sm1.key() == sm2.key());
+    bool keyEqual = (sm1.nativeIpcKey() == sm2.nativeIpcKey());
     bool nativeEqual = (sm1.nativeKey() == sm2.nativeKey());
 
     QCOMPARE(keyEqual, setEqual);
diff --git a/tests/auto/corelib/kernel/qsystemsemaphore/CMakeLists.txt b/tests/auto/corelib/ipc/qsystemsemaphore/CMakeLists.txt
similarity index 100%
rename from tests/auto/corelib/kernel/qsystemsemaphore/CMakeLists.txt
rename to tests/auto/corelib/ipc/qsystemsemaphore/CMakeLists.txt
diff --git a/tests/auto/corelib/kernel/qsystemsemaphore/acquirerelease/CMakeLists.txt b/tests/auto/corelib/ipc/qsystemsemaphore/acquirerelease/CMakeLists.txt
similarity index 100%
rename from tests/auto/corelib/kernel/qsystemsemaphore/acquirerelease/CMakeLists.txt
rename to tests/auto/corelib/ipc/qsystemsemaphore/acquirerelease/CMakeLists.txt
diff --git a/tests/auto/corelib/kernel/qsystemsemaphore/acquirerelease/main.cpp b/tests/auto/corelib/ipc/qsystemsemaphore/acquirerelease/main.cpp
similarity index 73%
rename from tests/auto/corelib/kernel/qsystemsemaphore/acquirerelease/main.cpp
rename to tests/auto/corelib/ipc/qsystemsemaphore/acquirerelease/main.cpp
index b2de1d76..e170789f 100644
--- a/tests/auto/corelib/kernel/qsystemsemaphore/acquirerelease/main.cpp
+++ b/tests/auto/corelib/ipc/qsystemsemaphore/acquirerelease/main.cpp
@@ -6,9 +6,9 @@
 #include <QStringList>
 #include <QSystemSemaphore>
 
-int acquire(int count = 1)
+int acquire(const QNativeIpcKey &key, int count = 1)
 {
-    QSystemSemaphore sem("store");
+    QSystemSemaphore sem(key);
 
     for (int i = 0; i < count; ++i) {
         if (!sem.acquire()) {
@@ -20,9 +20,9 @@ int acquire(int count = 1)
     return EXIT_SUCCESS;
 }
 
-int release()
+int release(const QNativeIpcKey &key)
 {
-    QSystemSemaphore sem("store");
+    QSystemSemaphore sem(key);
     if (!sem.release()) {
         qWarning() << "Could not release" << sem.key();
         return EXIT_FAILURE;
@@ -31,9 +31,9 @@ int release()
     return EXIT_SUCCESS;
 }
 
-int acquirerelease()
+int acquirerelease(const QNativeIpcKey &key)
 {
-    QSystemSemaphore sem("store");
+    QSystemSemaphore sem(key);
     if (!sem.acquire()) {
         qWarning() << "Could not acquire" << sem.key();
         return EXIT_FAILURE;
@@ -52,11 +52,15 @@ int main(int argc, char *argv[])
     QStringList arguments = app.arguments();
     // binary name is not used here
     arguments.takeFirst();
-    if (arguments.size() < 1) {
-        qWarning("Please call the helper with the function to call as argument");
+    if (arguments.size() < 2) {
+        fprintf(stderr,
+                "Usage: %s <acquire|release|acquirerelease> <key> [other args...]\n",
+                argv[0]);
         return EXIT_FAILURE;
     }
+
     QString function = arguments.takeFirst();
+    QNativeIpcKey key = QNativeIpcKey::fromString(arguments.takeFirst());
     if (function == QLatin1String("acquire")) {
         int count = 1;
         bool ok = true;
@@ -64,11 +68,11 @@ int main(int argc, char *argv[])
             count = arguments.takeFirst().toInt(&ok);
         if (!ok)
             count = 1;
-        return acquire(count);
+        return acquire(key, count);
     } else if (function == QLatin1String("release")) {
-        return release();
+        return release(key);
     } else if (function == QLatin1String("acquirerelease")) {
-        return acquirerelease();
+        return acquirerelease(key);
     } else {
         qWarning() << "Unknown function" << function;
     }
diff --git a/tests/auto/corelib/kernel/qsystemsemaphore/tst_qsystemsemaphore.cpp b/tests/auto/corelib/ipc/qsystemsemaphore/tst_qsystemsemaphore.cpp
similarity index 61%
rename from tests/auto/corelib/kernel/qsystemsemaphore/tst_qsystemsemaphore.cpp
rename to tests/auto/corelib/ipc/qsystemsemaphore/tst_qsystemsemaphore.cpp
index 1ba789e1..560f216c 100644
--- a/tests/auto/corelib/kernel/qsystemsemaphore/tst_qsystemsemaphore.cpp
+++ b/tests/auto/corelib/ipc/qsystemsemaphore/tst_qsystemsemaphore.cpp
@@ -1,4 +1,5 @@
 // Copyright (C) 2016 The Qt Company Ltd.
+// Copyright (C) 2022 Intel Corporation.
 // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only WITH Qt-GPL-exception-1.0
 
 #include <QTest>
@@ -10,9 +11,12 @@
 #include <QtCore/QSystemSemaphore>
 #include <QtCore/QTemporaryDir>
 
-#define EXISTING_SHARE "existing"
+#include "../ipctestcommon.h"
+
 #define HELPERWAITTIME 10000
 
+using namespace Qt::StringLiterals;
+
 class tst_QSystemSemaphore : public QObject
 {
     Q_OBJECT
@@ -20,29 +24,47 @@ class tst_QSystemSemaphore : public QObject
 public:
     tst_QSystemSemaphore();
 
+    QString mangleKey(QStringView key)
+    {
+        if (key.isEmpty())
+            return key.toString();
+        return u"tstsyssem_%1-%2_%3"_s.arg(QCoreApplication::applicationPid())
+                .arg(seq).arg(key);
+    }
+
+    QNativeIpcKey platformSafeKey(const QString &key)
+    {
+        QFETCH_GLOBAL(QNativeIpcKey::Type, keyType);
+        return QSystemSemaphore::platformSafeKey(mangleKey(key), keyType);
+    }
+
 public Q_SLOTS:
+    void initTestCase();
     void init();
     void cleanup();
 
 private slots:
-    void key_data();
-    void key();
+    void nativeKey_data();
+    void nativeKey();
+    void legacyKey_data() { nativeKey_data(); }
+    void legacyKey();
 
+    void changeKeyType();
     void basicacquire();
     void complexacquire();
     void release();
+    void twoSemaphores();
 
     void basicProcesses();
 
     void processes_data();
     void processes();
 
-#if !defined(Q_OS_WIN) && !defined(QT_POSIX_IPC)
     void undo();
-#endif
     void initialValue();
 
 private:
+    int seq = 0;
     QSystemSemaphore *existingLock;
 
     const QString m_helperBinary;
@@ -53,17 +75,24 @@ tst_QSystemSemaphore::tst_QSystemSemaphore()
 {
 }
 
+void tst_QSystemSemaphore::initTestCase()
+{
+    IpcTestCommon::addGlobalTestRows<QSystemSemaphore>();
+}
+
 void tst_QSystemSemaphore::init()
 {
-    existingLock = new QSystemSemaphore(EXISTING_SHARE, 1, QSystemSemaphore::Create);
+    QNativeIpcKey key = platformSafeKey("existing");
+    existingLock = new QSystemSemaphore(key, 1, QSystemSemaphore::Create);
 }
 
 void tst_QSystemSemaphore::cleanup()
 {
     delete existingLock;
+    ++seq;
 }
 
-void tst_QSystemSemaphore::key_data()
+void tst_QSystemSemaphore::nativeKey_data()
 {
     QTest::addColumn<QString>("constructorKey");
     QTest::addColumn<QString>("setKey");
@@ -76,7 +105,35 @@ void tst_QSystemSemaphore::key_data()
 /*!
     Basic key testing
  */
-void tst_QSystemSemaphore::key()
+void tst_QSystemSemaphore::nativeKey()
+{
+    QFETCH(QString, constructorKey);
+    QFETCH(QString, setKey);
+    QNativeIpcKey constructorIpcKey = platformSafeKey(constructorKey);
+    QNativeIpcKey setIpcKey = platformSafeKey(setKey);
+
+    QSystemSemaphore sem(constructorIpcKey);
+    QCOMPARE(sem.nativeIpcKey(), constructorIpcKey);
+    QCOMPARE(sem.error(), QSystemSemaphore::NoError);
+    QCOMPARE(sem.errorString(), QString());
+
+    sem.setNativeKey(setIpcKey);
+    QCOMPARE(sem.nativeIpcKey(), setIpcKey);
+    QCOMPARE(sem.error(), QSystemSemaphore::NoError);
+    QCOMPARE(sem.errorString(), QString());
+
+    // change the key type
+    QNativeIpcKey::Type nextKeyType = IpcTestCommon::nextKeyType(setIpcKey.type());
+    if (nextKeyType != setIpcKey.type()) {
+        QNativeIpcKey setIpcKey2 = QSystemSemaphore::platformSafeKey(setKey, nextKeyType);
+        sem.setNativeKey(setIpcKey2);
+        QCOMPARE(sem.nativeIpcKey(), setIpcKey2);
+    }
+}
+
+QT_WARNING_PUSH
+QT_WARNING_DISABLE_DEPRECATED
+void tst_QSystemSemaphore::legacyKey()
 {
     QFETCH(QString, constructorKey);
     QFETCH(QString, setKey);
@@ -91,10 +148,27 @@ void tst_QSystemSemaphore::key()
     QCOMPARE(sem.error(), QSystemSemaphore::NoError);
     QCOMPARE(sem.errorString(), QString());
 }
+QT_WARNING_POP
+
+void tst_QSystemSemaphore::changeKeyType()
+{
+    QString keyName = "changeKeyType";
+    QNativeIpcKey key = platformSafeKey(keyName);
+    QNativeIpcKey otherKey =
+            QSystemSemaphore::platformSafeKey(mangleKey(keyName), IpcTestCommon::nextKeyType(key.type()));
+    if (key == otherKey)
+        QSKIP("System only supports one key type");
+
+    QSystemSemaphore sem1(key, 1, QSystemSemaphore::Create);
+    QSystemSemaphore sem2(otherKey);
+    sem1.setNativeKey(otherKey);
+    sem2.setNativeKey(key);
+}
 
 void tst_QSystemSemaphore::basicacquire()
 {
-    QSystemSemaphore sem("QSystemSemaphore_basicacquire", 1, QSystemSemaphore::Create);
+    QNativeIpcKey key = platformSafeKey("basicacquire");
+    QSystemSemaphore sem(key, 1, QSystemSemaphore::Create);
     QVERIFY(sem.acquire());
     QCOMPARE(sem.error(), QSystemSemaphore::NoError);
     QVERIFY(sem.release());
@@ -104,7 +178,8 @@ void tst_QSystemSemaphore::basicacquire()
 
 void tst_QSystemSemaphore::complexacquire()
 {
-    QSystemSemaphore sem("QSystemSemaphore_complexacquire", 2, QSystemSemaphore::Create);
+    QNativeIpcKey key = platformSafeKey("complexacquire");
+    QSystemSemaphore sem(key, 2, QSystemSemaphore::Create);
     QVERIFY(sem.acquire());
     QCOMPARE(sem.error(), QSystemSemaphore::NoError);
     QVERIFY(sem.release());
@@ -126,7 +201,8 @@ void tst_QSystemSemaphore::complexacquire()
 
 void tst_QSystemSemaphore::release()
 {
-    QSystemSemaphore sem("QSystemSemaphore_release", 0, QSystemSemaphore::Create);
+    QNativeIpcKey key = platformSafeKey("release");
+    QSystemSemaphore sem(key, 0, QSystemSemaphore::Create);
     QVERIFY(sem.release());
     QCOMPARE(sem.error(), QSystemSemaphore::NoError);
     QVERIFY(sem.release());
@@ -142,12 +218,24 @@ void tst_QSystemSemaphore::release()
     QCOMPARE(sem.errorString(), QString());
 }
 
+void tst_QSystemSemaphore::twoSemaphores()
+{
+    QNativeIpcKey key = platformSafeKey("twoSemaphores");
+    QSystemSemaphore sem1(key, 1, QSystemSemaphore::Create);
+    QSystemSemaphore sem2(key);
+    QVERIFY(sem1.acquire());
+    QVERIFY(sem2.release());
+    QVERIFY(sem1.acquire());
+    QVERIFY(sem2.release());
+}
+
 void tst_QSystemSemaphore::basicProcesses()
 {
 #if !QT_CONFIG(process)
     QSKIP("No qprocess support", SkipAll);
 #else
-    QSystemSemaphore sem("store", 0, QSystemSemaphore::Create);
+    QNativeIpcKey key = platformSafeKey("store");
+    QSystemSemaphore sem(key, 0, QSystemSemaphore::Create);
 
     QProcess acquire;
     acquire.setProcessChannelMode(QProcess::ForwardedChannels);
@@ -155,12 +243,12 @@ void tst_QSystemSemaphore::basicProcesses()
     QProcess release;
     release.setProcessChannelMode(QProcess::ForwardedChannels);
 
-    acquire.start(m_helperBinary, QStringList("acquire"));
+    acquire.start(m_helperBinary, { "acquire", key.toString() });
     QVERIFY2(acquire.waitForStarted(), "Could not start helper binary");
     acquire.waitForFinished(HELPERWAITTIME);
     QCOMPARE(acquire.state(), QProcess::Running);
     acquire.kill();
-    release.start(m_helperBinary, QStringList("release"));
+    release.start(m_helperBinary, { "release", key.toString() });
     QVERIFY2(release.waitForStarted(), "Could not start helper binary");
     acquire.waitForFinished(HELPERWAITTIME);
     release.waitForFinished(HELPERWAITTIME);
@@ -183,7 +271,8 @@ void tst_QSystemSemaphore::processes()
 #if !QT_CONFIG(process)
     QSKIP("No qprocess support", SkipAll);
 #else
-    QSystemSemaphore sem("store", 1, QSystemSemaphore::Create);
+    QNativeIpcKey key = platformSafeKey("store");
+    QSystemSemaphore sem(key, 1, QSystemSemaphore::Create);
 
     QFETCH(int, processes);
     QList<QString> scripts(processes, "acquirerelease");
@@ -193,7 +282,7 @@ void tst_QSystemSemaphore::processes()
         QProcess *p = new QProcess;
         p->setProcessChannelMode(QProcess::ForwardedChannels);
         consumers.append(p);
-        p->start(m_helperBinary, QStringList(scripts.at(i)));
+        p->start(m_helperBinary, { scripts.at(i), key.toString() });
     }
 
     while (!consumers.isEmpty()) {
@@ -205,16 +294,24 @@ void tst_QSystemSemaphore::processes()
 #endif
 }
 
-// This test only checks a system v unix behavior.
-#if !defined(Q_OS_WIN) && !defined(QT_POSIX_IPC)
 void tst_QSystemSemaphore::undo()
 {
 #if !QT_CONFIG(process)
     QSKIP("No qprocess support", SkipAll);
 #else
-    QSystemSemaphore sem("store", 1, QSystemSemaphore::Create);
+    QNativeIpcKey key = platformSafeKey("store");
+    switch (key.type()) {
+    case QNativeIpcKey::Type::PosixRealtime:
+    case QNativeIpcKey::Type::Windows:
+        QSKIP("This test only checks a System V behavior.");
 
-    QStringList acquireArguments = QStringList("acquire");
+    case QNativeIpcKey::Type::SystemV:
+        break;
+    }
+
+    QSystemSemaphore sem(key, 1, QSystemSemaphore::Create);
+
+    QStringList acquireArguments = { "acquire", key.toString() };
     QProcess acquire;
     acquire.setProcessChannelMode(QProcess::ForwardedChannels);
     acquire.start(m_helperBinary, acquireArguments);
@@ -230,17 +327,17 @@ void tst_QSystemSemaphore::undo()
     QVERIFY(acquire.state()== QProcess::NotRunning);
 #endif
 }
-#endif
 
 void tst_QSystemSemaphore::initialValue()
 {
 #if !QT_CONFIG(process)
     QSKIP("No qprocess support", SkipAll);
 #else
-    QSystemSemaphore sem("store", 1, QSystemSemaphore::Create);
+    QNativeIpcKey key = platformSafeKey("store");
+    QSystemSemaphore sem(key, 1, QSystemSemaphore::Create);
 
-    QStringList acquireArguments = QStringList("acquire");
-    QStringList releaseArguments = QStringList("release");
+    QStringList acquireArguments = { "acquire", key.toString() };
+    QStringList releaseArguments = { "release", key.toString() };
     QProcess acquire;
     acquire.setProcessChannelMode(QProcess::ForwardedChannels);
 
diff --git a/tests/auto/corelib/itemmodels/qabstractitemmodel/tst_qabstractitemmodel.cpp b/tests/auto/corelib/itemmodels/qabstractitemmodel/tst_qabstractitemmodel.cpp
index ddeb9da6..4c69575e 100644
--- a/tests/auto/corelib/itemmodels/qabstractitemmodel/tst_qabstractitemmodel.cpp
+++ b/tests/auto/corelib/itemmodels/qabstractitemmodel/tst_qabstractitemmodel.cpp
@@ -414,7 +414,7 @@ void tst_QAbstractItemModel::itemFlags()
 
 void tst_QAbstractItemModel::match()
 {
-    QtTestModel model(4, 1);
+    QtTestModel model(5, 1);
     QModelIndex start = model.index(0, 0, QModelIndex());
     QVERIFY(start.isValid());
     QModelIndexList res = model.match(start, Qt::DisplayRole, QVariant("1"), 3);
@@ -427,19 +427,20 @@ void tst_QAbstractItemModel::match()
     model.setData(model.index(1, 0, QModelIndex()), "cat", Qt::DisplayRole);
     model.setData(model.index(2, 0, QModelIndex()), "dog", Qt::DisplayRole);
     model.setData(model.index(3, 0, QModelIndex()), "boar", Qt::DisplayRole);
+    model.setData(model.index(4, 0, QModelIndex()), "bo/a/r", Qt::DisplayRole); // QTBUG-104585
 
     res = model.match(start, Qt::DisplayRole, QVariant("dog"), -1, Qt::MatchExactly);
     QCOMPARE(res.size(), 1);
     res = model.match(start, Qt::DisplayRole, QVariant("a"), -1, Qt::MatchContains);
-    QCOMPARE(res.size(), 3);
+    QCOMPARE(res.size(), 4);
     res = model.match(start, Qt::DisplayRole, QVariant("b"), -1, Qt::MatchStartsWith);
-    QCOMPARE(res.size(), 2);
+    QCOMPARE(res.size(), 3);
     res = model.match(start, Qt::DisplayRole, QVariant("t"), -1, Qt::MatchEndsWith);
     QCOMPARE(res.size(), 2);
     res = model.match(start, Qt::DisplayRole, QVariant("*a*"), -1, Qt::MatchWildcard);
-    QCOMPARE(res.size(), 3);
+    QCOMPARE(res.size(), 4);
     res = model.match(start, Qt::DisplayRole, QVariant(".*O.*"), -1, Qt::MatchRegularExpression);
-    QCOMPARE(res.size(), 2);
+    QCOMPARE(res.size(), 3);
     res = model.match(start, Qt::DisplayRole, QVariant(".*O.*"), -1, Qt::MatchRegularExpression | Qt::MatchCaseSensitive);
     QCOMPARE(res.size(), 0);
     res = model.match(start, Qt::DisplayRole, QVariant("BOAR"), -1, Qt::MatchFixedString);
@@ -450,7 +451,7 @@ void tst_QAbstractItemModel::match()
 
     res = model.match(start, Qt::DisplayRole, QVariant(".*O.*"), -1,
                       Qt::MatchRegularExpression);
-    QCOMPARE(res.size(), 2);
+    QCOMPARE(res.size(), 3);
     res = model.match(start, Qt::DisplayRole, QVariant(".*O.*"), -1,
                       Qt::MatchRegularExpression | Qt::MatchCaseSensitive);
     QCOMPARE(res.size(), 0);
@@ -464,7 +465,7 @@ void tst_QAbstractItemModel::match()
                                                   QRegularExpression::CaseInsensitiveOption)),
                       -1,
                       Qt::MatchRegularExpression);
-    QCOMPARE(res.size(), 2);
+    QCOMPARE(res.size(), 3);
 
     // Ensure that the case sensitivity is properly ignored when passing a
     // QRegularExpression object.
@@ -474,7 +475,7 @@ void tst_QAbstractItemModel::match()
                                                   QRegularExpression::CaseInsensitiveOption)),
                       -1,
                       Qt::MatchRegularExpression | Qt::MatchCaseSensitive);
-    QCOMPARE(res.size(), 2);
+    QCOMPARE(res.size(), 3);
 }
 
 typedef QPair<int, int> Position;
diff --git a/tests/auto/corelib/kernel/CMakeLists.txt b/tests/auto/corelib/kernel/CMakeLists.txt
index 6b988230..ce0e82ba 100644
--- a/tests/auto/corelib/kernel/CMakeLists.txt
+++ b/tests/auto/corelib/kernel/CMakeLists.txt
@@ -32,15 +32,9 @@ endif()
 if(TARGET Qt::Network AND NOT ANDROID AND NOT UIKIT)
     add_subdirectory(qobject)
 endif()
-if(QT_FEATURE_private_tests AND NOT ANDROID AND NOT UIKIT)
-    add_subdirectory(qsharedmemory)
-endif()
 if(QT_FEATURE_private_tests AND TARGET Qt::Network)
     add_subdirectory(qsocketnotifier)
 endif()
-if(QT_FEATURE_systemsemaphore AND NOT ANDROID AND NOT UIKIT)
-    add_subdirectory(qsystemsemaphore)
-endif()
 if(WIN32)
     add_subdirectory(qwineventnotifier)
     add_subdirectory(qwinregistrykey)
diff --git a/tests/auto/corelib/kernel/qdeadlinetimer/tst_qdeadlinetimer.cpp b/tests/auto/corelib/kernel/qdeadlinetimer/tst_qdeadlinetimer.cpp
index dd132ea5..4e340cad 100644
--- a/tests/auto/corelib/kernel/qdeadlinetimer/tst_qdeadlinetimer.cpp
+++ b/tests/auto/corelib/kernel/qdeadlinetimer/tst_qdeadlinetimer.cpp
@@ -27,52 +27,6 @@ template<> char *toString(const QDeadlineTimer &dt)
               dt.hasExpired() ? " (expired)" : "");
     return buf;
 }
-
-template <typename Rep, typename Period> char *toString(std::chrono::duration<Rep, Period> dur)
-{
-    using namespace std::chrono;
-    static_assert(sizeof(double) == sizeof(qlonglong));
-
-    if constexpr (Period::num == 1 && sizeof(Rep) <= sizeof(qlonglong)) {
-        // typical case: second or sub-multiple of second, in a representation
-        // we can directly use
-        char *buf = new char[128];
-        if constexpr (std::is_integral_v<Rep>) {
-            char unit[] = "ss";
-            if constexpr (std::is_same_v<Period, std::atto>) {  // from Norwegian "atten", 18
-                unit[0] = 'a';
-            } else if constexpr (std::is_same_v<Period, std::femto>) {  // Norwegian "femten", 15
-                unit[0] = 'f';
-            } else if constexpr (std::is_same_v<Period, std::pico>) {
-                unit[0] = 'p';
-            } else if constexpr (std::is_same_v<Period, std::nano>) {
-                unit[0] = 'n';
-            } else if constexpr (std::is_same_v<Period, std::micro>) {
-                unit[0] = 'u';      // µ, really, but the output may not be UTF-8-safe
-            } else if constexpr (std::is_same_v<Period, std::milli>) {
-                unit[0] = 'm';
-            } else {
-                // deci, centi, cycles of something (60 Hz, 8000 Hz, etc.)
-                static_assert(Period::den == 1,
-                        "Unsupported std::chrono::duration of a sub-multiple of second");
-                unit[1] = '\0';
-            }
-
-            // cast to qlonglong in case Rep is not int64_t
-            qsnprintf(buf, 128, "%lld %s", qlonglong(dur.count()), unit);
-        } else {
-            auto secs = duration_cast<duration<double>>(dur);
-            qsnprintf(buf, 128, "%g s", secs.count());
-        }
-        return buf;
-    } else if constexpr (std::is_integral_v<Rep> && Period::den == 1) {
-        // multiple of second, so just print it in seconds
-        return toString(std::chrono::seconds(dur));
-    } else {
-        // something else, use floating-point seconds
-        return toString(std::chrono::duration_cast<double>(dur));
-    }
-}
 }
 QT_END_NAMESPACE
 
@@ -81,7 +35,6 @@ class tst_QDeadlineTimer : public QObject
     Q_OBJECT
 
 private Q_SLOTS:
-    void initTestCase_data();
     void basics();
     void foreverness();
     void current();
@@ -92,20 +45,13 @@ private Q_SLOTS:
     void stdchrono();
 };
 
-void tst_QDeadlineTimer::initTestCase_data()
-{
-    qRegisterMetaType<Qt::TimerType>();
-    QTest::addColumn<Qt::TimerType>("timerType");
-    QTest::newRow("precise") << Qt::PreciseTimer;
-    QTest::newRow("coarse") << Qt::CoarseTimer;
-}
+static constexpr auto timerType = Qt::PreciseTimer;
 
 void tst_QDeadlineTimer::basics()
 {
     QDeadlineTimer deadline;
     QCOMPARE(deadline.timerType(), Qt::CoarseTimer);
 
-    QFETCH_GLOBAL(Qt::TimerType, timerType);
     deadline = QDeadlineTimer(timerType);
     QCOMPARE(deadline.timerType(), timerType);
     QVERIFY(!deadline.isForever());
@@ -159,9 +105,6 @@ void tst_QDeadlineTimer::basics()
 
 void tst_QDeadlineTimer::foreverness()
 {
-    QFETCH_GLOBAL(Qt::TimerType, timerType);
-    // we don't check whether timerType() is our type since it's possible it detects it's forever
-
     QDeadlineTimer deadline = QDeadlineTimer::Forever;
     QCOMPARE(deadline.timerType(), Qt::CoarseTimer);
     QVERIFY(deadline.isForever());
@@ -271,7 +214,6 @@ void tst_QDeadlineTimer::foreverness()
 
 void tst_QDeadlineTimer::current()
 {
-    QFETCH_GLOBAL(Qt::TimerType, timerType);
     auto deadline = QDeadlineTimer::current(timerType);
     QVERIFY(deadline.hasExpired());
     QVERIFY(!deadline.isForever());
@@ -307,8 +249,6 @@ void tst_QDeadlineTimer::current()
 
 void tst_QDeadlineTimer::deadlines()
 {
-    QFETCH_GLOBAL(Qt::TimerType, timerType);
-
     QDeadlineTimer deadline(4 * minResolution, timerType);
     QVERIFY(!deadline.hasExpired());
     QVERIFY(!deadline.isForever());
@@ -405,7 +345,6 @@ void tst_QDeadlineTimer::deadlines()
 
 void tst_QDeadlineTimer::setDeadline()
 {
-    QFETCH_GLOBAL(Qt::TimerType, timerType);
     auto now = QDeadlineTimer::current(timerType);
     QDeadlineTimer deadline;
 
@@ -457,7 +396,6 @@ void tst_QDeadlineTimer::setDeadline()
 
 void tst_QDeadlineTimer::overflow()
 {
-    QFETCH_GLOBAL(Qt::TimerType, timerType);
     // Check the constructor for overflows (should also cover saturating the result of the deadline() method if overflowing)
     QDeadlineTimer now = QDeadlineTimer::current(timerType), deadline(std::numeric_limits<qint64>::max() - 1, timerType);
     QVERIFY(deadline.isForever() || deadline.deadline() >= now.deadline());
@@ -520,22 +458,43 @@ void tst_QDeadlineTimer::overflow()
 
     // Make sure setRemainingTime underflows gracefully
     deadline.setPreciseRemainingTime(std::numeric_limits<qint64>::min() / 10, 0, timerType);
-    QVERIFY(!deadline.isForever());     // On Win/macOS the above underflows, make sure we don't saturate to Forever
-    QVERIFY(deadline.remainingTime() == 0);
+    QVERIFY(deadline.isForever());      // The above could underflow, so make sure we did set to Forever
+    QCOMPARE(deadline.remainingTimeNSecs(), -1);
+    QCOMPARE(deadline.remainingTime(), -1);
     // If the timer is saturated we don't want to get a valid number of milliseconds
-    QVERIFY(deadline.deadline() == std::numeric_limits<qint64>::min());
+    QCOMPARE(deadline.deadline(), std::numeric_limits<qint64>::max());
 
     // Check that the conversion to milliseconds and nanoseconds underflows gracefully
     deadline.setPreciseDeadline(std::numeric_limits<qint64>::min() / 10, 0, timerType);
-    QVERIFY(!deadline.isForever());     // On Win/macOS the above underflows, make sure we don't saturate to Forever
+    QVERIFY(!deadline.isForever());     // The above underflows, make sure we don't saturate to Forever
     QVERIFY(deadline.deadline() == std::numeric_limits<qint64>::min());
     QVERIFY(deadline.deadlineNSecs() == std::numeric_limits<qint64>::min());
+
+    // Check that subtracting max() twice doesn't make it become positive
+    deadline.setPreciseDeadline(0);
+    deadline -= std::numeric_limits<qint64>::max();
+    deadline -= std::numeric_limits<qint64>::max();
+    QVERIFY(!deadline.isForever());
+    QCOMPARE(deadline.deadline(), std::numeric_limits<qint64>::min());
+    QCOMPARE(deadline.deadlineNSecs(), std::numeric_limits<qint64>::min());
+
+    // Ditto for adding max()
+    deadline.setPreciseDeadline(0);
+    deadline += std::numeric_limits<qint64>::max();
+    deadline += std::numeric_limits<qint64>::max();
+    QVERIFY(deadline.isForever());      // it's so far in the future it's effectively forever
+    QCOMPARE(deadline.deadline(), std::numeric_limits<qint64>::max());
+    QCOMPARE(deadline.deadlineNSecs(), std::numeric_limits<qint64>::max());
+
+    // But we don't un-become forever after saturation
+    deadline -= std::numeric_limits<qint64>::max();
+    QVERIFY(deadline.isForever());
+    QCOMPARE(deadline.deadline(), std::numeric_limits<qint64>::max());
+    QCOMPARE(deadline.deadlineNSecs(), std::numeric_limits<qint64>::max());
 }
 
 void tst_QDeadlineTimer::expire()
 {
-    QFETCH_GLOBAL(Qt::TimerType, timerType);
-
     QDeadlineTimer deadline(minResolution, timerType);
     QVERIFY(!deadline.hasExpired());
     QVERIFY(!deadline.isForever());
@@ -557,7 +516,6 @@ void tst_QDeadlineTimer::stdchrono()
 {
     using namespace std::chrono;
     using namespace std::chrono_literals;
-    QFETCH_GLOBAL(Qt::TimerType, timerType);
 
     // create some forevers
     QDeadlineTimer deadline = milliseconds::max();
@@ -630,16 +588,13 @@ void tst_QDeadlineTimer::stdchrono()
     QTRY_VERIFY2_WITH_TIMEOUT(timersExecuted,
         "Looks like timers didn't fire on time.", 4 * minResolution);
 
-#if defined(Q_OS_DARWIN) || defined(Q_OS_LINUX) || (defined(Q_CC_MSVC) && Q_CC_MSVC >= 1900)
     {
-        // We know for these OS/compilers that the std::chrono::steady_clock uses the same
-        // reference time as QDeadlineTimer
         qint64 before = duration_cast<nanoseconds>(steady_before.time_since_epoch()).count();
         qint64 after = duration_cast<nanoseconds>(steady_after.time_since_epoch()).count();
         QCOMPARE_GT(now.deadlineNSecs(), before);
         QCOMPARE_LT(now.deadlineNSecs(), after);
     }
-#endif
+
     {
         auto diff = duration_cast<milliseconds>(steady_after - steady_deadline);
         QCOMPARE_GT(diff.count(), minResolution / 2);
@@ -681,18 +636,24 @@ void tst_QDeadlineTimer::stdchrono()
     QCOMPARE_LT(deadline.deadline<steady_clock>(), (steady_clock::now() + 5ms * minResolution));
     QCOMPARE_GT(deadline.deadline<system_clock>(), (system_clock::now() + 3ms * minResolution));
     QCOMPARE_LT(deadline.deadline<system_clock>(), (system_clock::now() + 5ms * minResolution));
-    if (timerType == Qt::CoarseTimer) {
-        QCOMPARE_GT(deadline, now + 3ms * minResolution);
-        QCOMPARE_LT(deadline, now + 5ms * minResolution);
-        QCOMPARE_GT(deadline, now + 3000000ns * minResolution);
-        QCOMPARE_LT(deadline, now + 5000000ns * minResolution);
-        QCOMPARE_GT(deadline, 3ms * minResolution);
-        QCOMPARE_LT(deadline, 5ms * minResolution);
-        QCOMPARE_GT(deadline, 3000000ns * minResolution);
-        QCOMPARE_LT(deadline, 5000000ns * minResolution);
-        QCOMPARE_GE(deadline, steady_clock::now());
-        QCOMPARE_GE(deadline, system_clock::now());
-    }
+    QCOMPARE_GT((deadline.deadline<steady_clock, milliseconds>()),
+                steady_clock::now() + 3ms * minResolution);
+    QCOMPARE_LT((deadline.deadline<steady_clock, milliseconds>()),
+                steady_clock::now() + 5ms * minResolution);
+    QCOMPARE_GT((deadline.deadline<system_clock, milliseconds>()),
+                system_clock::now() + 3ms * minResolution);
+    QCOMPARE_LT((deadline.deadline<system_clock, milliseconds>()),
+                system_clock::now() + 5ms * minResolution);
+    QCOMPARE_GT(deadline, now + 3ms * minResolution);
+    QCOMPARE_LT(deadline, now + 5ms * minResolution);
+    QCOMPARE_GT(deadline, now + 3000000ns * minResolution);
+    QCOMPARE_LT(deadline, now + 5000000ns * minResolution);
+    QCOMPARE_GT(deadline, 3ms * minResolution);
+    QCOMPARE_LT(deadline, 5ms * minResolution);
+    QCOMPARE_GT(deadline, 3000000ns * minResolution);
+    QCOMPARE_LT(deadline, 5000000ns * minResolution);
+    QCOMPARE_GE(deadline, steady_clock::now());
+    QCOMPARE_GE(deadline, system_clock::now());
 
     now = QDeadlineTimer::current(timerType);
     deadline = QDeadlineTimer(1s, timerType);
@@ -705,10 +666,8 @@ void tst_QDeadlineTimer::stdchrono()
     QCOMPARE_LE(deadline.deadline<steady_clock>(), steady_clock::now() + 1s + 1ms * minResolution);
     QCOMPARE_GT(deadline.deadline<system_clock>(), system_clock::now() + 1s - 1ms * minResolution);
     QCOMPARE_LE(deadline.deadline<system_clock>(), system_clock::now() + 1s + 1ms * minResolution);
-    if (timerType == Qt::CoarseTimer) {
-        QCOMPARE_GT(deadline, 1s - 1ms * minResolution);
-        QCOMPARE_LE(deadline, 1s);
-    }
+    QCOMPARE_GT(deadline, 1s - 1ms * minResolution);
+    QCOMPARE_LE(deadline, 1s);
 
     now = QDeadlineTimer::current(timerType);
     deadline.setRemainingTime(1h, timerType);
diff --git a/tests/auto/corelib/kernel/qelapsedtimer/tst_qelapsedtimer.cpp b/tests/auto/corelib/kernel/qelapsedtimer/tst_qelapsedtimer.cpp
index f2f42bef..502fe9b5 100644
--- a/tests/auto/corelib/kernel/qelapsedtimer/tst_qelapsedtimer.cpp
+++ b/tests/auto/corelib/kernel/qelapsedtimer/tst_qelapsedtimer.cpp
@@ -1,8 +1,8 @@
 // Copyright (C) 2016 The Qt Company Ltd.
 // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only WITH Qt-GPL-exception-1.0
 
+#include <QtCore/QDateTime>
 #include <QtCore/QString>
-#include <QtCore/QTime>
 #include <QtCore/QElapsedTimer>
 #include <QTest>
 #include <QTimer>
@@ -31,11 +31,25 @@ private Q_SLOTS:
 
 void tst_QElapsedTimer::statics()
 {
-    qDebug() << "Clock type is" << QElapsedTimer::clockType();
-    qDebug() << "Said clock is" << (QElapsedTimer::isMonotonic() ? "monotonic" : "not monotonic");
+    // these have been required since Qt 6.6
+    QCOMPARE(QElapsedTimer::clockType(), QElapsedTimer::MonotonicClock);
+    QVERIFY(QElapsedTimer::isMonotonic());
+
     QElapsedTimer t;
     t.start();
-    qDebug() << "Current time is" << t.msecsSinceReference();
+    qint64 system_now = QDateTime::currentMSecsSinceEpoch();
+
+    auto setprecision = +[](QTextStream &s) -> QTextStream & {
+        s.setRealNumberNotation(QTextStream::FixedNotation);
+        s.setRealNumberPrecision(3);
+        return s;
+    };
+    qDebug() << setprecision
+             << "Current monotonic time is" << (t.msecsSinceReference() / 1000.)
+             << "s and current system time is" << (system_now / 1000.) << 's';
+    if (qAbs(system_now - t.msecsSinceReference()) < 5 * minResolution)
+        qWarning() << "The monotonic clock is awfully close to the system clock"
+                      " (it may not be monotonic at all!)";
 }
 
 void tst_QElapsedTimer::validity()
diff --git a/tests/auto/corelib/kernel/qeventdispatcher/tst_qeventdispatcher.cpp b/tests/auto/corelib/kernel/qeventdispatcher/tst_qeventdispatcher.cpp
index 99563f18..fe78d000 100644
--- a/tests/auto/corelib/kernel/qeventdispatcher/tst_qeventdispatcher.cpp
+++ b/tests/auto/corelib/kernel/qeventdispatcher/tst_qeventdispatcher.cpp
@@ -355,7 +355,7 @@ void tst_QEventDispatcher::postEventFromThread()
     threadPool->start([&]{
         int loop = 1000 / 10; // give it a second
         while (!done && --loop)
-            QThread::msleep(10);
+            QThread::sleep(std::chrono::milliseconds{10});
         if (done)
             return;
         hadToQuit = true;
@@ -393,7 +393,7 @@ void tst_QEventDispatcher::postEventFromEventHandler()
     threadPool->start([&]{
         int loop = 250 / 10; // give it 250ms
         while (!done && --loop)
-            QThread::msleep(10);
+            QThread::sleep(std::chrono::milliseconds{10});
         if (done)
             return;
         hadToQuit = true;
diff --git a/tests/auto/corelib/kernel/qmetacontainer/tst_qmetacontainer.cpp b/tests/auto/corelib/kernel/qmetacontainer/tst_qmetacontainer.cpp
index 606e9478..2eeb7ede 100644
--- a/tests/auto/corelib/kernel/qmetacontainer/tst_qmetacontainer.cpp
+++ b/tests/auto/corelib/kernel/qmetacontainer/tst_qmetacontainer.cpp
@@ -497,6 +497,10 @@ void tst_QMetaContainer::testSequence()
     QVERIFY(metaSequence.compareConstIterator(constIt, constEnd));
     metaSequence.destroyConstIterator(constIt);
     metaSequence.destroyConstIterator(constEnd);
+
+    QVERIFY(metaSequence.iface() != nullptr);
+    QMetaSequence defaultConstructed;
+    QVERIFY(defaultConstructed.iface() == nullptr);
 }
 
 void tst_QMetaContainer::testAssociation_data()
@@ -722,6 +726,10 @@ void tst_QMetaContainer::testAssociation()
     QVERIFY(metaAssociation.compareConstIterator(constIt, constEnd));
     metaAssociation.destroyConstIterator(constIt);
     metaAssociation.destroyConstIterator(constEnd);
+
+    QVERIFY(metaAssociation.iface() != nullptr);
+    QMetaSequence defaultConstructed;
+    QVERIFY(defaultConstructed.iface() == nullptr);
 }
 
 QTEST_MAIN(tst_QMetaContainer)
diff --git a/tests/auto/corelib/kernel/qmetaobject/tst_qmetaobject.cpp b/tests/auto/corelib/kernel/qmetaobject/tst_qmetaobject.cpp
index 4c3bb853..926f3d1d 100644
--- a/tests/auto/corelib/kernel/qmetaobject/tst_qmetaobject.cpp
+++ b/tests/auto/corelib/kernel/qmetaobject/tst_qmetaobject.cpp
@@ -302,6 +302,8 @@ private slots:
     void invokeTypedefTypes();
     void invokeException();
     void invokeQueuedAutoRegister();
+    void invokeFreeFunction();
+    void invokeBind();
     void qtMetaObjectInheritance();
     void normalizedSignature_data();
     void normalizedSignature();
@@ -1997,6 +1999,49 @@ void tst_QMetaObject::invokeQueuedAutoRegister()
              QString("slotWithRegistrableArgument:myShared-myShared-myShared-myShared-00"));
 }
 
+namespace FunctionTest {
+    static void function0() {}
+    static int functionNoExcept() noexcept
+    {
+        return 42;
+    }
+}
+
+void tst_QMetaObject::invokeFreeFunction()
+{
+    using namespace FunctionTest;
+    QtTestObject obj;
+    QMetaObject::invokeMethod(&obj, function0);
+    int retInt = -1;
+    QMetaObject::invokeMethod(&obj, functionNoExcept, &retInt);
+    QCOMPARE(retInt, functionNoExcept());
+}
+
+void tst_QMetaObject::invokeBind()
+{
+    QtTestObject obj;
+
+    struct {
+        int number;
+        QString string;
+    } results;
+
+    const auto function = [&results](int number, const QString &string) -> bool {
+        results.number = number;
+        results.string = string;
+        return true;
+    };
+
+    const int number = 42;
+    const QString string("Test");
+    const auto binding = std::bind(function, number, string);
+    bool ret = false;
+    QMetaObject::invokeMethod(&obj, binding, &ret);
+    QVERIFY(ret);
+    QCOMPARE(results.number, number);
+    QCOMPARE(results.string, string);
+}
+
 void tst_QMetaObject::normalizedSignature_data()
 {
     QTest::addColumn<QString>("signature");
diff --git a/tests/auto/corelib/kernel/qmetaobjectbuilder/tst_qmetaobjectbuilder.cpp b/tests/auto/corelib/kernel/qmetaobjectbuilder/tst_qmetaobjectbuilder.cpp
index 38c896b6..42df2987 100644
--- a/tests/auto/corelib/kernel/qmetaobjectbuilder/tst_qmetaobjectbuilder.cpp
+++ b/tests/auto/corelib/kernel/qmetaobjectbuilder/tst_qmetaobjectbuilder.cpp
@@ -779,6 +779,26 @@ void tst_QMetaObjectBuilder::notifySignal()
 
 void tst_QMetaObjectBuilder::enumerator()
 {
+    static const QtPrivate::QMetaTypeInterface fooFlagMetaType = {
+        0,
+        8,
+        8,
+        QMetaType::IsEnumeration | QMetaType::IsUnsignedEnumeration | QMetaType::RelocatableType,
+        {},
+        nullptr,
+        "fooFlag",
+        nullptr,
+        nullptr,
+        nullptr,
+        nullptr,
+        nullptr,
+        nullptr,
+        nullptr,
+        nullptr,
+        nullptr,
+        nullptr,
+    };
+
     QMetaObjectBuilder builder;
 
     // Add an enumerator and check its attributes.
@@ -810,6 +830,7 @@ void tst_QMetaObjectBuilder::enumerator()
     enum1.setIsFlag(true);
     enum1.setIsScoped(true);
     enum1.setEnumName(QByteArrayLiteral("fooFlag"));
+    enum1.setMetaType(QMetaType(&fooFlagMetaType));
     QCOMPARE(enum1.addKey("ABC", 0), 0);
     QCOMPARE(enum1.addKey("DEF", 1), 1);
     QCOMPARE(enum1.addKey("GHI", -1), 2);
@@ -819,6 +840,7 @@ void tst_QMetaObjectBuilder::enumerator()
     QVERIFY(enum1.isFlag());
     QVERIFY(enum1.isScoped());
     QCOMPARE(enum1.enumName(), QByteArray("fooFlag"));
+    QCOMPARE(enum1.metaType(), QMetaType(&fooFlagMetaType));
     QCOMPARE(enum1.keyCount(), 3);
     QCOMPARE(enum1.index(), 0);
     QCOMPARE(enum1.key(0), QByteArray("ABC"));
diff --git a/tests/auto/corelib/kernel/qmetatype/tst_qmetatype.cpp b/tests/auto/corelib/kernel/qmetatype/tst_qmetatype.cpp
index 6f7da9f7..606a32dd 100644
--- a/tests/auto/corelib/kernel/qmetatype/tst_qmetatype.cpp
+++ b/tests/auto/corelib/kernel/qmetatype/tst_qmetatype.cpp
@@ -13,6 +13,8 @@
 #include <memory>
 #include <vector>
 
+#include <QtCore/qflags.h>
+
 Q_DECLARE_METATYPE(QMetaType::Type)
 Q_DECLARE_METATYPE(QPartialOrdering)
 
@@ -1858,6 +1860,58 @@ void tst_QMetaType::isEnum()
     QVERIFY((QMetaType(type6).flags() & QMetaType::IsEnumeration) == QMetaType::IsEnumeration);
 }
 
+enum E1 : unsigned char {};
+enum E2 : qlonglong {};
+enum class E3 : unsigned short {};
+
+namespace myflags {
+
+    Q_NAMESPACE
+
+    enum  Flag1 : int { A, B };
+    enum  Flag2 : short { X, Y };
+
+    Q_DECLARE_FLAGS(Flags1, myflags::Flag1);
+    Q_FLAG_NS(Flags1)
+    Q_DECLARE_FLAGS(Flags2, myflags::Flag2);
+    Q_FLAG_NS(Flags2)
+
+}
+
+template <typename T>
+using getUnderlyingTypeNormalized = std::conditional_t<
+    std::is_signed_v<std::underlying_type_t<T>>,
+    typename QIntegerForSize<sizeof(T)>::Signed,
+    typename QIntegerForSize<sizeof(T)>::Unsigned
+>;
+
+void tst_QMetaType::underlyingType_data()
+{
+    QTest::addColumn<QMetaType>("source");
+    QTest::addColumn<QMetaType>("underlying");
+
+    QTest::newRow("invalid") << QMetaType() << QMetaType();
+    QTest::newRow("plain") << QMetaType::fromType<isEnumTest_Enum1>()
+                           << QMetaType::fromType<getUnderlyingTypeNormalized<isEnumTest_Enum1>>();
+    QTest::newRow("uchar") << QMetaType::fromType<E1>()
+                           << QMetaType::fromType<getUnderlyingTypeNormalized<E1>>();
+    QTest::newRow("long") << QMetaType::fromType<E2>()
+                          << QMetaType::fromType<getUnderlyingTypeNormalized<E2>>();
+    QTest::newRow("class_ushort") << QMetaType::fromType<E3>()
+                                  << QMetaType::fromType<getUnderlyingTypeNormalized<E3>>();
+    QTest::newRow("flags_int") << QMetaType::fromType<myflags::Flags1>()
+                               << QMetaType::fromType<int>();
+    QTest::newRow("flags_short")  << QMetaType::fromType<myflags::Flags2>()
+                                  << QMetaType::fromType<int>(); // sic, not short!
+}
+
+void tst_QMetaType::underlyingType()
+{
+    QFETCH(QMetaType, source);
+    QFETCH(QMetaType, underlying);
+    QCOMPARE(source.underlyingType(), underlying);
+}
+
 void tst_QMetaType::isRegisteredStaticLess_data()
 {
     isRegistered_data();
diff --git a/tests/auto/corelib/kernel/qmetatype/tst_qmetatype.h b/tests/auto/corelib/kernel/qmetatype/tst_qmetatype.h
index 75bb3635..3afb4943 100644
--- a/tests/auto/corelib/kernel/qmetatype/tst_qmetatype.h
+++ b/tests/auto/corelib/kernel/qmetatype/tst_qmetatype.h
@@ -91,6 +91,8 @@ private slots:
     void isRegisteredStaticLess();
     void isNotRegistered();
     void isEnum();
+    void underlyingType_data();
+    void underlyingType();
     void automaticTemplateRegistration_1();
     void automaticTemplateRegistration_2(); // defined in tst_qmetatype3.cpp
     void saveAndLoadBuiltin_data();
diff --git a/tests/auto/corelib/kernel/qobject/tst_qobject.cpp b/tests/auto/corelib/kernel/qobject/tst_qobject.cpp
index 923d6d5c..a4f761d6 100644
--- a/tests/auto/corelib/kernel/qobject/tst_qobject.cpp
+++ b/tests/auto/corelib/kernel/qobject/tst_qobject.cpp
@@ -149,6 +149,7 @@ private slots:
     void objectNameBinding();
     void emitToDestroyedClass();
     void declarativeData();
+    void asyncCallbackHelper();
 };
 
 struct QObjectCreatedOnShutdown
@@ -6074,6 +6075,7 @@ void tst_QObject::connectFunctorArgDifference()
 
     connect(&timer, &QTimer::timeout, [=](){});
     connect(&timer, &QTimer::objectNameChanged, [=](const QString &){});
+    connect(&timer, &QTimer::objectNameChanged, this, [](){});
     connect(qApp, &QCoreApplication::aboutToQuit, [=](){});
 
     connect(&timer, &QTimer::objectNameChanged, [=](){});
@@ -6812,7 +6814,11 @@ struct QmlReceiver : public QtPrivate::QSlotObjectBase
         , magic(0)
     {}
 
+#if QT_VERSION < QT_VERSION_CHECK(7, 0, 0)
     static void impl(int which, QSlotObjectBase *this_, QObject *, void **metaArgs, bool *ret)
+#else
+    static void impl(QSlotObjectBase *this_, QObject *, void **metaArgs, int which, bool *ret)
+#endif
     {
         switch (which) {
         case Destroy: delete static_cast<QmlReceiver*>(this_); return;
@@ -8365,5 +8371,240 @@ void tst_QObject::declarativeData()
 #endif
 }
 
+/*
+    Compile-time test for the helpers in qobjectdefs_impl.h.
+*/
+class AsyncCaller : public QObject
+{
+    Q_OBJECT
+public:
+    ~AsyncCaller()
+    {
+        if (slotObject)
+            slotObject->destroyIfLastRef();
+    }
+    void callback0() {}
+    void callback1(const QString &) {}
+    void callbackInt(int) {}
+    int returnInt() const { return 0; }
+
+    static int staticCallback0() { return 0; }
+    static void staticCallback1(const QString &) {}
+
+    using Prototype0 = int(*)();
+    using Prototype1 = void(*)(QString);
+
+    template<typename Functor>
+    bool callMe0(const typename QtPrivate::ContextTypeForFunctor<Functor>::ContextType *, Functor &&func)
+    {
+        if (slotObject) {
+            slotObject->destroyIfLastRef();
+            slotObject = nullptr;
+        }
+        QtPrivate::AssertCompatibleFunctions<Prototype0, Functor>();
+        slotObject = QtPrivate::makeCallableObject<Prototype0>(std::forward<Functor>(func));
+        return true;
+    }
+
+    template<typename Functor>
+    bool callMe0(Functor &&func)
+    {
+        return callMe0(nullptr, std::forward<Functor>(func));
+    }
+
+    template<typename Functor>
+    bool callMe1(const typename QtPrivate::ContextTypeForFunctor<Functor>::ContextType *, Functor &&func)
+    {
+        if (slotObject) {
+            slotObject->destroyIfLastRef();
+            slotObject = nullptr;
+        }
+        QtPrivate::AssertCompatibleFunctions<Prototype1, Functor>();
+        slotObject = QtPrivate::makeCallableObject<Prototype1>(std::forward<Functor>(func));
+        return true;
+    }
+
+    template<typename Functor>
+    bool callMe1(Functor &&func)
+    {
+        return callMe1(nullptr, std::forward<Functor>(func));
+    }
+
+    QtPrivate::QSlotObjectBase *slotObject = nullptr;
+};
+
+static void freeFunction0() {}
+static void freeFunction1(QString) {}
+static void freeFunctionVariant(QVariant) {}
+
+template<typename Prototype, typename Functor>
+inline constexpr bool compiles(Functor &&) {
+    return QtPrivate::AreFunctionsCompatible<Prototype, Functor>::value;
+}
+
+void tst_QObject::asyncCallbackHelper()
+{
+    int result = 0;
+    QString arg1 = "Parameter";
+    void *argv[] = { &result, &arg1 };
+
+    auto lambda0 = []{};
+    auto lambda1 = [](const QString &) {};
+    auto lambda2 = [](const QString &, int) {};
+    const auto constLambda = [](const QString &) {};
+    auto moveOnlyLambda = [u = std::unique_ptr<int>()]{};
+    auto moveOnlyLambda1 = [u = std::unique_ptr<int>()](const QString &){};
+
+    SlotFunctor functor0;
+    SlotFunctorString functor1;
+
+    // no parameters provided or needed
+    static_assert(compiles<AsyncCaller::Prototype0>(&AsyncCaller::callback0));
+    static_assert(compiles<AsyncCaller::Prototype0>(&AsyncCaller::staticCallback0));
+    static_assert(compiles<AsyncCaller::Prototype0>(lambda0));
+    static_assert(compiles<AsyncCaller::Prototype0>(std::move(moveOnlyLambda)));
+    static_assert(compiles<AsyncCaller::Prototype0>(freeFunction0));
+    static_assert(compiles<AsyncCaller::Prototype0>(functor0));
+
+    // more parameters than needed
+    static_assert(compiles<AsyncCaller::Prototype1>(&AsyncCaller::callback0));
+    static_assert(compiles<AsyncCaller::Prototype1>(&AsyncCaller::staticCallback0));
+    static_assert(compiles<AsyncCaller::Prototype1>(lambda0));
+    static_assert(compiles<AsyncCaller::Prototype1>(freeFunction0));
+    static_assert(compiles<AsyncCaller::Prototype1>(functor0));
+
+    // matching parameter
+    static_assert(compiles<AsyncCaller::Prototype1>(&AsyncCaller::callback1));
+    static_assert(compiles<AsyncCaller::Prototype1>(&AsyncCaller::staticCallback1));
+    static_assert(compiles<AsyncCaller::Prototype1>(lambda1));
+    static_assert(compiles<AsyncCaller::Prototype1>(std::move(moveOnlyLambda1)));
+    static_assert(compiles<AsyncCaller::Prototype1>(constLambda));
+    static_assert(compiles<AsyncCaller::Prototype1>(freeFunction1));
+    static_assert(compiles<AsyncCaller::Prototype1>(functor1));
+
+    // not enough parameters
+    static_assert(!compiles<AsyncCaller::Prototype0>(&AsyncCaller::callback1));
+    static_assert(!compiles<AsyncCaller::Prototype0>(&AsyncCaller::staticCallback1));
+    static_assert(!compiles<AsyncCaller::Prototype0>(lambda1));
+    static_assert(!compiles<AsyncCaller::Prototype0>(constLambda));
+    static_assert(!compiles<AsyncCaller::Prototype0>(lambda2));
+    static_assert(!compiles<AsyncCaller::Prototype0>(freeFunction1));
+    static_assert(!compiles<AsyncCaller::Prototype0>(functor1));
+
+    // wrong parameter type
+    static_assert(!compiles<AsyncCaller::Prototype1>(&AsyncCaller::callbackInt));
+
+    // old-style slot name
+    static_assert(!compiles<AsyncCaller::Prototype0>("callback1"));
+
+    // slot with return value is ok, we just don't pass
+    // the return value through to anything.
+    static_assert(compiles<AsyncCaller::Prototype0>(&AsyncCaller::returnInt));
+
+    static_assert(compiles<AsyncCaller::Prototype1>(freeFunctionVariant));
+
+    std::function<int()> stdFunction0(&AsyncCaller::staticCallback0);
+    std::function<void(QString)> stdFunction1(&AsyncCaller::staticCallback1);
+    static_assert(compiles<AsyncCaller::Prototype0>(stdFunction0));
+    static_assert(compiles<AsyncCaller::Prototype1>(stdFunction1));
+
+    AsyncCaller caller;
+    // with context
+    QVERIFY(caller.callMe0(&caller, &AsyncCaller::callback0));
+    QVERIFY(caller.callMe0(&caller, &AsyncCaller::returnInt));
+    QVERIFY(caller.callMe0(&caller, &AsyncCaller::staticCallback0));
+    QVERIFY(caller.callMe0(&caller, lambda0));
+    QVERIFY(caller.callMe0(&caller, freeFunction0));
+    QVERIFY(caller.callMe0(&caller, std::move(moveOnlyLambda)));
+    QVERIFY(caller.callMe0(&caller, stdFunction0));
+
+    QVERIFY(caller.callMe1(&caller, &AsyncCaller::callback1));
+    QVERIFY(caller.callMe1(&caller, &AsyncCaller::staticCallback1));
+    QVERIFY(caller.callMe1(&caller, lambda1));
+    QVERIFY(caller.callMe1(&caller, freeFunction1));
+    QVERIFY(caller.callMe1(&caller, constLambda));
+    QVERIFY(caller.callMe1(&caller, stdFunction1));
+
+    // without context
+    QVERIFY(caller.callMe0(&AsyncCaller::staticCallback0));
+    QVERIFY(caller.callMe0(lambda0));
+    QVERIFY(caller.callMe0(freeFunction0));
+    QVERIFY(caller.callMe0(stdFunction0));
+
+    QVERIFY(caller.callMe1(&AsyncCaller::staticCallback1));
+    QVERIFY(caller.callMe1(lambda1));
+    QVERIFY(caller.callMe1(constLambda));
+    QVERIFY(caller.callMe1(std::move(moveOnlyLambda1)));
+    QVERIFY(caller.callMe1(freeFunction1));
+    QVERIFY(caller.callMe1(stdFunction1));
+
+    static const char *expectedPayload = "Hello World!";
+    {
+        struct MoveOnlyFunctor {
+            MoveOnlyFunctor() = default;
+            MoveOnlyFunctor(MoveOnlyFunctor &&) = default;
+            MoveOnlyFunctor(const MoveOnlyFunctor &) = delete;
+            ~MoveOnlyFunctor() = default;
+
+            int operator()() const {
+                qDebug().noquote() << payload;
+                return int(payload.length());
+            }
+            QString payload = expectedPayload;
+        } moveOnlyFunctor;
+        QVERIFY(caller.callMe0(std::move(moveOnlyFunctor)));
+    }
+    QTest::ignoreMessage(QtDebugMsg, expectedPayload);
+    caller.slotObject->call(nullptr, argv);
+    QCOMPARE(result, QLatin1String(expectedPayload).length());
+
+    // mutable lambda; same behavior as mutableFunctor - we copy the functor
+    // in the QCallableObject, so the original is not modified
+    int status = 0;
+    auto mutableLambda1 = [&status, calls = 0]() mutable { status = ++calls; };
+
+    mutableLambda1();
+    QCOMPARE(status, 1);
+    QVERIFY(caller.callMe0(mutableLambda1)); // this copies the lambda with count == 1
+    caller.slotObject->call(nullptr, argv);  // this doesn't change mutableLambda1, but the copy
+    QCOMPARE(status, 2);
+    mutableLambda1();
+    QCOMPARE(status, 2);                     // and we are still at two
+
+    auto mutableLambda2 = [calls = 0]() mutable { return ++calls; };
+    QCOMPARE(mutableLambda2(), 1);
+    QVERIFY(caller.callMe0(mutableLambda2)); // this copies the lambda
+    caller.slotObject->call(nullptr, argv);  // this call doesn't change mutableLambda2
+    QCOMPARE(mutableLambda2(), 2);           // so we are still at 2
+
+    {
+        int called = -1;
+        struct MutableFunctor {
+            void operator()() { called = 0; }
+            int &called;
+        };
+        struct ConstFunctor
+        {
+            void operator()() const { called = 1; }
+            int &called;
+        };
+
+        MutableFunctor mf{called};
+        QMetaObject::invokeMethod(this, mf);
+        QCOMPARE(called, 0);
+        ConstFunctor cf{called};
+        QMetaObject::invokeMethod(this, cf);
+        QCOMPARE(called, 1);
+        QMetaObject::invokeMethod(this, [&called, u = std::unique_ptr<int>()]{ called = 2; });
+        QCOMPARE(called, 2);
+        QMetaObject::invokeMethod(this, [&called, count = 0]() mutable {
+            if (!count)
+                called = 3;
+            ++count;
+        });
+        QCOMPARE(called, 3);
+    }
+}
+
 QTEST_MAIN(tst_QObject)
 #include "tst_qobject.moc"
diff --git a/tests/auto/corelib/kernel/qpermission/tst_qpermission.cpp b/tests/auto/corelib/kernel/qpermission/tst_qpermission.cpp
index b6989696..8f257eba 100644
--- a/tests/auto/corelib/kernel/qpermission/tst_qpermission.cpp
+++ b/tests/auto/corelib/kernel/qpermission/tst_qpermission.cpp
@@ -26,6 +26,7 @@ private Q_SLOTS:
 
     void conversionMaintainsState() const;
 
+    void functorWithoutContext();
     void functorWithContextInThread();
     void receiverInThread();
     void destroyedContextObject();
@@ -145,6 +146,47 @@ void tst_QPermission::conversionMaintainsState() const
     }
 }
 
+template <typename Func,
+          typename T = std::void_t<decltype(qApp->requestPermission(std::declval<DummyPermission>(),
+                                                                    std::declval<Func>()))>
+         >
+void wrapRequestPermission(const QPermission &p, Func &&f)
+{
+    qApp->requestPermission(p, std::forward<Func>(f));
+}
+
+template <typename Functor>
+using CompatibleTest = decltype(wrapRequestPermission(std::declval<QPermission>(), std::declval<Functor>()));
+
+
+// Compile test for context-less functor overloads
+void tst_QPermission::functorWithoutContext()
+{
+    int argc = 0;
+    char *argv = nullptr;
+    QCoreApplication app(argc, &argv);
+
+    DummyPermission dummy;
+#ifdef Q_OS_DARWIN
+    QTest::ignoreMessage(QtWarningMsg, QRegularExpression(".*Could not find permission plugin for DummyPermission.*"));
+#endif
+
+    qApp->requestPermission(dummy, [](const QPermission &permission){
+        QVERIFY(permission.value<DummyPermission>());
+    });
+    wrapRequestPermission(dummy, [](const QPermission &permission){
+        QVERIFY(permission.value<DummyPermission>());
+    });
+
+    auto compatible = [](const QPermission &) {};
+    using Compatible = decltype(compatible);
+    auto incompatible = [](const QString &) {};
+    using Incompatible = decltype(incompatible);
+
+    static_assert(qxp::is_detected_v<CompatibleTest, Compatible>);
+    static_assert(!qxp::is_detected_v<CompatibleTest, Incompatible>);
+}
+
 void tst_QPermission::functorWithContextInThread()
 {
     int argc = 0;
@@ -209,6 +251,11 @@ void tst_QPermission::receiverInThread()
 
     qApp->requestPermission(dummy, &receiver, &Receiver::handlePermission);
     QTRY_COMPARE(receiver.permissionReceiverThread, &receiverThread);
+
+    // compile tests: none of these work and the error output isn't horrible
+    // qApp->requestPermission(dummy, &receiver, "&tst_QPermission::receiverInThread");
+    // qApp->requestPermission(dummy, &receiver, &tst_QPermission::receiverInThread);
+    // qApp->requestPermission(dummy, &receiver, &QObject::destroyed);
 }
 
 void tst_QPermission::destroyedContextObject()
diff --git a/tests/auto/corelib/kernel/qpointer/tst_qpointer.cpp b/tests/auto/corelib/kernel/qpointer/tst_qpointer.cpp
index 9886ab84..7f01c6f9 100644
--- a/tests/auto/corelib/kernel/qpointer/tst_qpointer.cpp
+++ b/tests/auto/corelib/kernel/qpointer/tst_qpointer.cpp
@@ -19,6 +19,7 @@ public:
 
 private slots:
     void constructors();
+    void conversion();
     void destructor();
     void assignment_operators();
     void equality_operators();
@@ -44,6 +45,54 @@ void tst_QPointer::constructors()
     QCOMPARE(p3, QPointer<QObject>(this));
 }
 
+void tst_QPointer::conversion()
+{
+    // copy-conversion:
+    {
+        QFile file;
+        QPointer<QFile> pf = &file;
+        QCOMPARE_EQ(pf, &file);
+        QPointer<const QIODevice> pio = pf;
+        QCOMPARE_EQ(pio, &file);
+        QCOMPARE_EQ(pio.get(), &file);
+        QCOMPARE_EQ(pio, pf);
+        QCOMPARE_EQ(pio.get(), pf.get());
+
+        // reset
+        pio = nullptr;
+        QCOMPARE_EQ(pio, nullptr);
+        QCOMPARE_EQ(pio.get(), nullptr);
+
+        // copy-assignment
+        QCOMPARE_EQ(pf, &file);
+        pio = pf;
+        QCOMPARE_EQ(pio, &file);
+        QCOMPARE_EQ(pio.get(), &file);
+        QCOMPARE_EQ(pio, pf);
+        QCOMPARE_EQ(pio.get(), pf.get());
+    }
+    // move-conversion:
+    {
+        QFile file;
+        QPointer<QFile> pf = &file;
+        QCOMPARE_EQ(pf, &file);
+        QPointer<const QIODevice> pio = std::move(pf);
+        QCOMPARE_EQ(pf, nullptr);
+        QCOMPARE_EQ(pio, &file);
+        QCOMPARE_EQ(pio.get(), &file);
+
+        // reset
+        pio = nullptr;
+        QCOMPARE_EQ(pio, nullptr);
+        QCOMPARE_EQ(pio.get(), nullptr);
+
+        // move-assignment
+        pio = QPointer<QFile>(&file);
+        QCOMPARE_EQ(pio, &file);
+        QCOMPARE_EQ(pio.get(), &file);
+    }
+}
+
 void tst_QPointer::destructor()
 {
     // Make two QPointer's to the same object
diff --git a/tests/auto/corelib/kernel/qproperty/tst_qproperty.cpp b/tests/auto/corelib/kernel/qproperty/tst_qproperty.cpp
index 7f470ce1..acbeea47 100644
--- a/tests/auto/corelib/kernel/qproperty/tst_qproperty.cpp
+++ b/tests/auto/corelib/kernel/qproperty/tst_qproperty.cpp
@@ -1827,13 +1827,14 @@ void tst_QProperty::propertyAdaptorBinding()
     QCOMPARE(object.fooChangedCount, 7);
 
     // Check update group
-    Qt::beginPropertyUpdateGroup();
-    source.setValue(23);
-    source2.setValue(22);
-    QCOMPARE(object.foo(), 43);
-    QCOMPARE(dest1.value(), 43);
-    QCOMPARE(object.fooChangedCount, 7);
-    Qt::endPropertyUpdateGroup();
+    {
+        const QScopedPropertyUpdateGroup guard;
+        source.setValue(23);
+        source2.setValue(22);
+        QCOMPARE(object.foo(), 43);
+        QCOMPARE(dest1.value(), 43);
+        QCOMPARE(object.fooChangedCount, 7);
+    }
     QCOMPARE(object.foo(), 45);
     QCOMPARE(dest1.value(), 45);
     QCOMPARE(object.fooChangedCount, 8);
@@ -2130,27 +2131,29 @@ void tst_QProperty::groupedNotifications()
     QCOMPARE(nNotifications, 1);
 
     expected = 2;
-    Qt::beginPropertyUpdateGroup();
-    a = 1;
-    QCOMPARE(b.value(), 0);
-    QCOMPARE(c.value(), 0);
-    QCOMPARE(d.value(), 0);
-    QCOMPARE(nNotifications, 1);
-    Qt::endPropertyUpdateGroup();
+    {
+        const QScopedPropertyUpdateGroup guard;
+        a = 1;
+        QCOMPARE(b.value(), 0);
+        QCOMPARE(c.value(), 0);
+        QCOMPARE(d.value(), 0);
+        QCOMPARE(nNotifications, 1);
+    }
     QCOMPARE(b.value(), 1);
     QCOMPARE(c.value(), 1);
     QCOMPARE(e.value(), 2);
     QCOMPARE(nNotifications, 2);
 
     expected = 7;
-    Qt::beginPropertyUpdateGroup();
-    a = 2;
-    d = 3;
-    QCOMPARE(b.value(), 1);
-    QCOMPARE(c.value(), 1);
-    QCOMPARE(d.value(), 3);
-    QCOMPARE(nNotifications, 2);
-    Qt::endPropertyUpdateGroup();
+    {
+        const QScopedPropertyUpdateGroup guard;
+        a = 2;
+        d = 3;
+        QCOMPARE(b.value(), 1);
+        QCOMPARE(c.value(), 1);
+        QCOMPARE(d.value(), 3);
+        QCOMPARE(nNotifications, 2);
+    }
     QCOMPARE(b.value(), 2);
     QCOMPARE(c.value(), 2);
     QCOMPARE(e.value(), 7);
@@ -2173,10 +2176,11 @@ void tst_QProperty::groupedNotificationConsistency()
     j = 1;
     QVERIFY(!areEqual); // value changed runs before j = 1
 
-    Qt::beginPropertyUpdateGroup();
-    i = 2;
-    j = 2;
-    Qt::endPropertyUpdateGroup();
+    {
+        const QScopedPropertyUpdateGroup guard;
+        i = 2;
+        j = 2;
+    }
     QVERIFY(areEqual); // value changed runs after everything has been evaluated
 }
 
@@ -2311,6 +2315,8 @@ void tst_QProperty::selfBindingShouldNotCrash()
 
 void tst_QProperty::qpropertyAlias()
 {
+#if QT_DEPRECATED_SINCE(6, 6)
+    QT_WARNING_PUSH QT_WARNING_DISABLE_DEPRECATED
     std::unique_ptr<QProperty<int>> i {new QProperty<int>};
     QPropertyAlias<int> alias(i.get());
     QVERIFY(alias.isValid());
@@ -2325,6 +2331,8 @@ void tst_QProperty::qpropertyAlias()
     QCOMPARE(alias.value(), 42);
     i.reset();
     QVERIFY(!alias.isValid());
+    QT_WARNING_POP
+#endif
 }
 
 void tst_QProperty::scheduleNotify()
diff --git a/tests/auto/corelib/kernel/qsharedmemory/CMakeLists.txt b/tests/auto/corelib/kernel/qsharedmemory/CMakeLists.txt
deleted file mode 100644
index cd1c3294..00000000
--- a/tests/auto/corelib/kernel/qsharedmemory/CMakeLists.txt
+++ /dev/null
@@ -1,27 +0,0 @@
-# Copyright (C) 2022 The Qt Company Ltd.
-# SPDX-License-Identifier: BSD-3-Clause
-
-if(QT_FEATURE_sharedmemory)
-    #####################################################################
-    ## tst_qsharedmemory Test:
-    #####################################################################
-
-    qt_internal_add_test(tst_qsharedmemory
-        SOURCES
-            tst_qsharedmemory.cpp
-        LIBRARIES
-            Qt::CorePrivate
-    )
-
-    ## Scopes:
-    #####################################################################
-
-    qt_internal_extend_target(tst_qsharedmemory CONDITION LINUX
-        LIBRARIES
-            rt
-    )
-    add_subdirectory(producerconsumer)
-    if(QT_FEATURE_process)
-        add_dependencies(tst_qsharedmemory producerconsumer_helper)
-    endif()
-endif()
diff --git a/tests/auto/corelib/kernel/qsocketnotifier/tst_qsocketnotifier.cpp b/tests/auto/corelib/kernel/qsocketnotifier/tst_qsocketnotifier.cpp
index 6c26b907..641b74bd 100644
--- a/tests/auto/corelib/kernel/qsocketnotifier/tst_qsocketnotifier.cpp
+++ b/tests/auto/corelib/kernel/qsocketnotifier/tst_qsocketnotifier.cpp
@@ -24,6 +24,7 @@
 #  undef min
 #endif // Q_CC_MSVC
 
+using namespace std::chrono_literals;
 
 class tst_QSocketNotifier : public QObject
 {
@@ -375,7 +376,7 @@ void tst_QSocketNotifier::asyncMultipleDatagram()
             &tst_QSocketNotifier::async_readDatagramSlot);
 
     // activate socket notifiers
-    QTestEventLoop::instance().enterLoopMSecs(100);
+    QTestEventLoop::instance().enterLoop(100ms);
 
     m_asyncSender->writeDatagram("1", makeNonAny(m_asyncReceiver->localAddress()), port);
     m_asyncSender->writeDatagram("2", makeNonAny(m_asyncReceiver->localAddress()), port);
diff --git a/tests/auto/corelib/kernel/qtimer/tst_qtimer.cpp b/tests/auto/corelib/kernel/qtimer/tst_qtimer.cpp
index f71037f6..910916f7 100644
--- a/tests/auto/corelib/kernel/qtimer/tst_qtimer.cpp
+++ b/tests/auto/corelib/kernel/qtimer/tst_qtimer.cpp
@@ -150,14 +150,14 @@ void tst_QTimer::singleShotNormalizes_data()
 void tst_QTimer::singleShotNormalizes()
 {
     using namespace std::chrono_literals;
-    static constexpr int TestTimeout = 250 * 1000;
+    static constexpr auto TestTimeout = 250ms;
     QFETCH(QByteArray, slotName);
     QEventLoop loop;
 
     // control test: regular connection
     {
         QTimer timer;
-        QVERIFY(QObject::connect(&timer, SIGNAL(timeout()), &QTestEventLoop::instance(), slotName.constData()));
+        QVERIFY(QObject::connect(&timer, SIGNAL(timeout()), &QTestEventLoop::instance(), slotName));
         timer.setSingleShot(true);
         timer.start(1);
         QTestEventLoop::instance().enterLoop(TestTimeout);
@@ -165,20 +165,20 @@ void tst_QTimer::singleShotNormalizes()
     }
 
     // non-zero time
-    QTimer::singleShot(1, &QTestEventLoop::instance(), slotName.constData());
+    QTimer::singleShot(1, &QTestEventLoop::instance(), slotName);
     QTestEventLoop::instance().enterLoop(TestTimeout);
     QVERIFY(!QTestEventLoop::instance().timeout());
 
-    QTimer::singleShot(1ms, &QTestEventLoop::instance(), slotName.constData());
+    QTimer::singleShot(1ms, &QTestEventLoop::instance(), slotName);
     QTestEventLoop::instance().enterLoop(TestTimeout);
     QVERIFY(!QTestEventLoop::instance().timeout());
 
     // zero time
-    QTimer::singleShot(0, &QTestEventLoop::instance(), slotName.constData());
+    QTimer::singleShot(0, &QTestEventLoop::instance(), slotName);
     QTestEventLoop::instance().enterLoop(TestTimeout);
     QVERIFY(!QTestEventLoop::instance().timeout());
 
-    QTimer::singleShot(0ms, &QTestEventLoop::instance(), slotName.constData());
+    QTimer::singleShot(0ms, &QTestEventLoop::instance(), slotName);
     QTestEventLoop::instance().enterLoop(TestTimeout);
     QVERIFY(!QTestEventLoop::instance().timeout());
 }
@@ -1175,11 +1175,22 @@ void tst_QTimer::crossThreadSingleShotToFunctor()
     DummyFunctor::callThread = nullptr;
 
     QThread t;
-    t.start();
-
     std::unique_ptr<QObject> o(new QObject());
     o->moveToThread(&t);
 
+    QTimer::singleShot(timeout, o.get(), DummyFunctor());
+
+    // wait enough time for the timer to have timed out before the timer
+    // could be start in the receiver's thread.
+    QTest::qWait(10 + timeout * 10);
+    t.start();
+    t.wait();
+    QCOMPARE(DummyFunctor::callThread, &t);
+
+    // continue with a stress test - the calling thread is busy, the
+    // timer should still fire and no crashes.
+    DummyFunctor::callThread = nullptr;
+    t.start();
     for (int i = 0; i < 10000; i++)
         QTimer::singleShot(timeout, o.get(), DummyFunctor());
 
diff --git a/tests/auto/corelib/kernel/qvariant/tst_qvariant.cpp b/tests/auto/corelib/kernel/qvariant/tst_qvariant.cpp
index ff30fec8..b97bf4e8 100644
--- a/tests/auto/corelib/kernel/qvariant/tst_qvariant.cpp
+++ b/tests/auto/corelib/kernel/qvariant/tst_qvariant.cpp
@@ -5,6 +5,48 @@
 
 #include <qvariant.h>
 
+// don't assume <type_traits>
+template <typename T, typename U>
+constexpr inline bool my_is_same_v = false;
+template <typename T>
+constexpr inline bool my_is_same_v<T, T> = true;
+
+#define CHECK_IMPL(func, arg, Variant, cvref, R) \
+    static_assert(my_is_same_v<decltype( func < arg >(std::declval< Variant cvref >())), R cvref >)
+
+#define CHECK_GET_IF(Variant, cvref) \
+    CHECK_IMPL(get_if, int, Variant, cvref *, int)
+
+#define CHECK_GET(Variant, cvref) \
+    CHECK_IMPL(get, int, Variant, cvref, int)
+
+CHECK_GET_IF(QVariant, /* unadorned */);
+CHECK_GET_IF(QVariant, const);
+
+CHECK_GET(QVariant, &);
+CHECK_GET(QVariant, const &);
+CHECK_GET(QVariant, &&);
+CHECK_GET(QVariant, const &&);
+
+// check for a type derived from QVariant:
+
+struct MyVariant : QVariant
+{
+    using QVariant::QVariant;
+};
+
+CHECK_GET_IF(MyVariant, /* unadorned */);
+CHECK_GET_IF(MyVariant, const);
+
+CHECK_GET(MyVariant, &);
+CHECK_GET(MyVariant, const &);
+CHECK_GET(MyVariant, &&);
+CHECK_GET(MyVariant, const &&);
+
+#undef CHECK_GET_IF
+#undef CHECK_GET
+#undef CHECK_IMPL
+
 #include <QTest>
 
 // Please stick to alphabetic order.
@@ -44,7 +86,10 @@
 #include <variant>
 #include <unordered_map>
 
+using namespace Qt::StringLiterals;
+
 class CustomNonQObject;
+struct NonDefaultConstructible;
 
 template<typename T, typename  = void>
 struct QVariantFromValueCompiles
@@ -342,7 +387,29 @@ private slots:
     void constructFromQtLT65MetaType();
     void copyNonDefaultConstructible();
 
+    void inplaceConstruct();
+    void emplace();
+
+    void getIf_int() { getIf_impl(42); }
+    void getIf_QString() { getIf_impl(u"string"_s); };
+    void getIf_NonDefaultConstructible();
+    void getIfSpecial();
+
+    void get_int() { get_impl(42); }
+    void get_QString() { get_impl(u"string"_s); }
+    void get_NonDefaultConstructible();
+
 private:
+    using StdVariant = std::variant<std::monostate,
+            // list here all the types with which we instantiate getIf_impl:
+            int,
+            QString,
+            NonDefaultConstructible
+        >;
+    template <typename T>
+    void getIf_impl(T t) const;
+    template <typename T>
+    void get_impl(T t) const;
     template<typename T>
     void canViewAndView_ReturnFalseAndDefault_WhenConvertingBetweenPointerAndValue_impl(const QByteArray &typeName);
     void dataStream_data(QDataStream::Version version);
@@ -5428,6 +5495,16 @@ void tst_QVariant::shouldDeleteVariantDataWorksForAssociative()
 
 void tst_QVariant::fromStdVariant()
 {
+#define CHECK_EQUAL(lhs, rhs, type) do { \
+        QCOMPARE(lhs.typeId(), rhs.typeId()); \
+        if (lhs.isNull()) { \
+            QVERIFY(rhs.isNull()); \
+        } else { \
+            QVERIFY(!rhs.isNull()); \
+            QCOMPARE(get< type >(lhs), get< type >(rhs)); \
+        } \
+    } while (false)
+
     {
         typedef std::variant<int, bool> intorbool_t;
         intorbool_t stdvar = 5;
@@ -5435,21 +5512,38 @@ void tst_QVariant::fromStdVariant()
         QVERIFY(!qvar.isNull());
         QCOMPARE(qvar.typeId(), QMetaType::Int);
         QCOMPARE(qvar.value<int>(), std::get<int>(stdvar));
+        {
+            const auto qv2 = QVariant::fromStdVariant(std::move(stdvar));
+            CHECK_EQUAL(qv2, qvar, int);
+        }
+
         stdvar = true;
         qvar = QVariant::fromStdVariant(stdvar);
         QVERIFY(!qvar.isNull());
         QCOMPARE(qvar.typeId(), QMetaType::Bool);
         QCOMPARE(qvar.value<bool>(), std::get<bool>(stdvar));
+        {
+            const auto qv2 = QVariant::fromStdVariant(std::move(stdvar));
+            CHECK_EQUAL(qv2, qvar, bool);
+        }
     }
     {
         std::variant<std::monostate, int> stdvar;
         QVariant qvar = QVariant::fromStdVariant(stdvar);
         QVERIFY(!qvar.isValid());
+        {
+            const auto qv2 = QVariant::fromStdVariant(std::move(stdvar));
+            CHECK_EQUAL(qv2, qvar, int); // fake type, they're empty
+        }
         stdvar = -4;
         qvar = QVariant::fromStdVariant(stdvar);
         QVERIFY(!qvar.isNull());
         QCOMPARE(qvar.typeId(), QMetaType::Int);
         QCOMPARE(qvar.value<int>(), std::get<int>(stdvar));
+        {
+            const auto qv2 = QVariant::fromStdVariant(std::move(stdvar));
+            CHECK_EQUAL(qv2, qvar, int);
+        }
     }
     {
         std::variant<int, bool, QChar> stdvar = QChar::fromLatin1(' ');
@@ -5457,7 +5551,25 @@ void tst_QVariant::fromStdVariant()
         QVERIFY(!qvar.isNull());
         QCOMPARE(qvar.typeId(), QMetaType::QChar);
         QCOMPARE(qvar.value<QChar>(), std::get<QChar>(stdvar));
+        {
+            const auto qv2 = QVariant::fromStdVariant(std::move(stdvar));
+            CHECK_EQUAL(qv2, qvar, QChar);
+        }
     }
+    // rvalue fromStdVariant() actually moves:
+    {
+        const auto foo = u"foo"_s;
+        std::variant<QString, QByteArray> stdvar = foo;
+        QVariant qvar = QVariant::fromStdVariant(std::move(stdvar));
+        const auto ps = get_if<QString>(&stdvar);
+        QVERIFY(ps);
+        QVERIFY(ps->isNull()); // QString was moved from
+        QVERIFY(!qvar.isNull());
+        QCOMPARE(qvar.typeId(), QMetaType::QString);
+        QCOMPARE(get<QString>(qvar), foo);
+    }
+
+#undef CHECK_EQUAL
 }
 
 void tst_QVariant::qt4UuidDataStream()
@@ -5641,6 +5753,16 @@ void tst_QVariant::canViewAndView_ReturnFalseAndDefault_WhenConvertingBetweenPoi
 #undef ADD_TEST_IMPL
 }
 
+struct MoveTester
+{
+    bool wasMoved = false;
+    MoveTester() = default;
+    MoveTester(const MoveTester &) {}; // non-trivial on purpose
+    MoveTester(MoveTester &&other) { other.wasMoved = true; }
+    MoveTester& operator=(const MoveTester &) = default;
+    MoveTester& operator=(MoveTester &&other) {other.wasMoved = true; return *this;}
+};
+
 void tst_QVariant::moveOperations()
 {
     {
@@ -5662,6 +5784,19 @@ void tst_QVariant::moveOperations()
     v = QVariant::fromValue(list);
     v2 = std::move(v);
     QVERIFY(v2.value<std::list<int>>() == list);
+
+    {
+        MoveTester tester;
+        QVariant::fromValue(tester);
+        QVERIFY(!tester.wasMoved);
+        QVariant::fromValue(std::move(tester));
+        QVERIFY(tester.wasMoved);
+    }
+    {
+        const MoveTester tester;
+        QVariant::fromValue(std::move(tester));
+        QVERIFY(!tester.wasMoved); // we don't want to move from const variables
+    }
 }
 
 class NoMetaObject : public QObject {};
@@ -5816,14 +5951,317 @@ void tst_QVariant::copyNonDefaultConstructible()
     QVERIFY(var.constData() != &ndc);
 
     // qvariant_cast<T> and QVariant::value<T> don't compile
-    QCOMPARE(*static_cast<const NonDefaultConstructible *>(var.constData()), ndc);
+    QCOMPARE(get<NonDefaultConstructible>(std::as_const(var)), ndc);
 
     QVariant var2 = var;
     var2.detach();      // force another copy
     QVERIFY(var2.isDetached());
     QVERIFY(var2.constData() != var.constData());
+    QCOMPARE(get<NonDefaultConstructible>(std::as_const(var2)),
+             get<NonDefaultConstructible>(std::as_const(var)));
     QCOMPARE(var2, var);
 }
 
+void tst_QVariant::inplaceConstruct()
+{
+    {
+        NonDefaultConstructible ndc(42);
+        QVariant var(std::in_place_type<NonDefaultConstructible>, 42);
+        QVERIFY(get_if<NonDefaultConstructible>(&var));
+        QCOMPARE(get<NonDefaultConstructible>(var), ndc);
+    }
+
+    {
+        std::vector<int> vec {1, 2, 3, 4};
+        QVariant var(std::in_place_type<std::vector<int>>, {1, 2, 3, 4});
+        QVERIFY(get_if<std::vector<int>>(&var));
+        QCOMPARE(get<std::vector<int>>(var), vec);
+    }
+}
+
+struct LargerThanInternalQVariantStorage {
+    char data[6 * sizeof(void *)];
+};
+
+struct alignas(256) LargerThanInternalQVariantStorageOveraligned {
+    char data[6 * sizeof(void *)];
+};
+
+struct alignas(128) SmallerAlignmentEvenLargerSize {
+    char data[17 * sizeof(void *)];
+};
+
+void tst_QVariant::emplace()
+{
+    {
+        // can emplace non default constructible + can emplace on null variant
+        NonDefaultConstructible ndc(42);
+        QVariant var;
+        var.emplace<NonDefaultConstructible>(42);
+        QVERIFY(get_if<NonDefaultConstructible>(&var));
+        QCOMPARE(get<NonDefaultConstructible>(var), ndc);
+    }
+    {
+        // can emplace using ctor taking initializer_list
+        QVariant var;
+        var.emplace<std::vector<int>>({0, 1, 2, 3, 4});
+        auto vecPtr = get_if<std::vector<int>>(&var);
+        QVERIFY(vecPtr);
+        QCOMPARE(vecPtr->size(), 5U);
+        for (int i = 0; i < 5; ++i)
+            QCOMPARE(vecPtr->at(size_t(i)), i);
+    }
+    // prequisites for the test
+    QCOMPARE_LE(sizeof(std::vector<int>), sizeof(std::string));
+    QCOMPARE(alignof(std::vector<int>), alignof(std::string));
+    {
+        // emplace can reuse storage
+        auto var = QVariant::fromValue(std::string{});
+        QVERIFY(var.data_ptr().is_shared);
+        auto data = var.constData();
+        std::vector<int> &vec = var.emplace<std::vector<int>>(3, 42);
+        /* alignment is the same, so the pointer is exactly the same;
+           no offset change */
+        auto expected = std::vector<int>{42, 42, 42};
+        QCOMPARE(get_if<std::vector<int>>(&var), &vec);
+        QCOMPARE(get<std::vector<int>>(var), expected);
+        QCOMPARE(var.constData(), data);
+    }
+    {
+        // emplace can't reuse storage if the variant is shared
+        auto var = QVariant::fromValue(std::string{});
+        [[maybe_unused]] QVariant causesSharing = var;
+        QVERIFY(var.data_ptr().is_shared);
+        auto data = var.constData();
+        var.emplace<std::vector<int>>(3, 42);
+        auto expected = std::vector<int>{42, 42, 42};
+        QVERIFY(get_if<std::vector<int>>(&var));
+        QCOMPARE(get<std::vector<int>>(var), expected);
+        QCOMPARE_NE(var.constData(), data);
+    }
+    {
+        // emplace puts element into the correct place - non-shared
+        QVERIFY(QVariant::Private::canUseInternalSpace(QMetaType::fromType<QString>().iface()));
+        QVariant var;
+        var.emplace<QString>(QChar('x'));
+        QVERIFY(!var.data_ptr().is_shared);
+    }
+    {
+        // emplace puts element into the correct place - shared
+        QVERIFY(!QVariant::Private::canUseInternalSpace(QMetaType::fromType<std::string>().iface()));
+        QVariant var;
+        var.emplace<std::string>(42, 'x');
+        QVERIFY(var.data_ptr().is_shared);
+    }
+    {
+        // emplace does not reuse the storage if alignment is too large
+        auto iface = QMetaType::fromType<LargerThanInternalQVariantStorage>().iface();
+        QVERIFY(!QVariant::Private::canUseInternalSpace(iface));
+        auto var = QVariant::fromValue(LargerThanInternalQVariantStorage{});
+        auto data = var.constData();
+        var.emplace<LargerThanInternalQVariantStorageOveraligned>();
+        QCOMPARE_NE(var.constData(), data);
+    }
+    {
+        // emplace does reuse the storage if new alignment and size are together small enough
+        auto iface = QMetaType::fromType<LargerThanInternalQVariantStorageOveraligned>().iface();
+        QVERIFY(!QVariant::Private::canUseInternalSpace(iface));
+        auto var = QVariant::fromValue(LargerThanInternalQVariantStorageOveraligned{});
+        auto data = var.constData();
+        var.emplace<SmallerAlignmentEvenLargerSize>();
+        // no exact match below - the alignment is after all different
+        QCOMPARE_LE(quintptr(var.constData()), quintptr(data));
+        QCOMPARE_LE(quintptr(var.constData()),
+                    quintptr(data) + sizeof(LargerThanInternalQVariantStorageOveraligned));
+    }
+}
+
+void tst_QVariant::getIf_NonDefaultConstructible()
+{
+    getIf_impl(NonDefaultConstructible{42});
+}
+
+void tst_QVariant::getIfSpecial()
+{
+    QVariant v{QString{}}; // used to be a null QVariant in Qt 5
+    QCOMPARE_NE(get_if<QString>(&v), nullptr); // not anymore...
+}
+
+void tst_QVariant::get_NonDefaultConstructible()
+{
+    get_impl(NonDefaultConstructible{42});
+}
+
+template <typename T>
+T mutate(const T &t) { return t + t; }
+template <>
+NonDefaultConstructible mutate(const NonDefaultConstructible &t)
+{
+    return NonDefaultConstructible{t.i + t.i};
+}
+
+template <typename T>
+QVariant make_null_QVariant_of_type()
+{
+    return QVariant(QMetaType::fromType<T>());
+}
+
+template <typename T>
+void tst_QVariant::getIf_impl(T t) const
+{
+    QVariant v = QVariant::fromValue(t);
+
+    QVariant null;
+    QVERIFY(null.isNull());
+
+    [[maybe_unused]]
+    QVariant nulT;
+    if constexpr (std::is_default_constructible_v<T>) {
+        // typed null QVariants don't work with non-default-constuctable types
+        nulT = make_null_QVariant_of_type<T>();
+        QVERIFY(nulT.isNull());
+    }
+
+    QVariant date = QDate(2023, 3, 3);
+    static_assert(!std::is_same_v<T, QDate>);
+
+    // for behavioral comparison:
+    StdVariant stdn = {}, stdv = t;
+
+    // returns nullptr on type mismatch:
+    {
+        // const
+        QCOMPARE_EQ(get_if<T>(&std::as_const(stdn)), nullptr);
+        QCOMPARE_EQ(get_if<T>(&std::as_const(date)), nullptr);
+        // mutable
+        QCOMPARE_EQ(get_if<T>(&stdn), nullptr);
+        QCOMPARE_EQ(get_if<T>(&date), nullptr);
+    }
+
+    // returns nullptr on null variant (QVariant only):
+    {
+        QCOMPARE_EQ(get_if<T>(&std::as_const(null)), nullptr);
+        QCOMPARE_EQ(get_if<T>(&null), nullptr);
+        if constexpr (std::is_default_constructible_v<T>) {
+            // const access return nullptr
+            QCOMPARE_EQ(get_if<T>(&std::as_const(nulT)), nullptr);
+            // but mutable access makes typed null QVariants non-null (like data())
+            QCOMPARE_NE(get_if<T>(&nulT), nullptr);
+            QVERIFY(!nulT.isNull());
+            nulT = make_null_QVariant_of_type<T>(); // reset to null state
+        }
+    }
+
+    // const access:
+    {
+        auto ps = get_if<T>(&std::as_const(stdv));
+        static_assert(std::is_same_v<decltype(ps), const T*>);
+        QCOMPARE_NE(ps, nullptr);
+        QCOMPARE_EQ(*ps, t);
+
+        auto pv = get_if<T>(&std::as_const(v));
+        static_assert(std::is_same_v<decltype(ps), const T*>);
+        QCOMPARE_NE(pv, nullptr);
+        QCOMPARE_EQ(*pv, t);
+    }
+
+    // mutable access:
+    {
+        T t2 = mutate(t);
+
+        auto ps = get_if<T>(&stdv);
+        static_assert(std::is_same_v<decltype(ps), T*>);
+        QCOMPARE_NE(ps, nullptr);
+        QCOMPARE_EQ(*ps, t);
+        *ps = t2;
+        auto ps2 = get_if<T>(&stdv);
+        QCOMPARE_NE(ps2, nullptr);
+        QCOMPARE_EQ(*ps2, t2);
+
+        auto pv = get_if<T>(&v);
+        static_assert(std::is_same_v<decltype(pv), T*>);
+        QCOMPARE_NE(pv, nullptr);
+        QCOMPARE_EQ(*pv, t);
+        *pv = t2;
+        auto pv2 = get_if<T>(&v);
+        QCOMPARE_NE(pv2, nullptr);
+        QCOMPARE_EQ(*pv2, t2);
+
+        // typed null QVariants become non-null (data() behavior):
+        if constexpr (std::is_default_constructible_v<T>) {
+            QVERIFY(nulT.isNull());
+            auto pn = get_if<T>(&nulT);
+            QVERIFY(!nulT.isNull());
+            static_assert(std::is_same_v<decltype(pn), T*>);
+            QCOMPARE_NE(pn, nullptr);
+            QCOMPARE_EQ(*pn, T{});
+            *pn = t2;
+            auto pn2 = get_if<T>(&nulT);
+            QCOMPARE_NE(pn2, nullptr);
+            QCOMPARE_EQ(*pn2, t2);
+        }
+    }
+}
+
+template <typename T>
+void tst_QVariant::get_impl(T t) const
+{
+    QVariant v = QVariant::fromValue(t);
+
+    // for behavioral comparison:
+    StdVariant stdv = t;
+
+    #define FOR_EACH_CVREF(op) \
+        op(/*unadorned*/, &&) \
+        op(&, &) \
+        op(&&, &&) \
+        op(const, const &&) \
+        op(const &, const &) \
+        op(const &&, const &&) \
+        /* end */
+
+
+    #define CHECK_RETURN_TYPE_OF(Variant, cvref_in, cvref_out) \
+        static_assert(std::is_same_v< \
+                decltype(get<T>(std::declval<Variant cvref_in >())), \
+                T cvref_out \
+            >); \
+        /* end */
+    #define CHECK_RETURN_TYPE(cvref_in, cvref_out) \
+        CHECK_RETURN_TYPE_OF(StdVariant, cvref_in, cvref_out) \
+        CHECK_RETURN_TYPE_OF(QVariant,   cvref_in, cvref_out) \
+        /* end */
+    FOR_EACH_CVREF(CHECK_RETURN_TYPE)
+    #undef CHECK_RETURN_TYPE
+
+    #undef FOR_EACH_CVREF
+
+    // const access:
+    {
+        auto &&rs = get<T>(std::as_const(stdv));
+        QCOMPARE_EQ(rs, t);
+
+        auto &&rv = get<T>(std::as_const(v));
+        QCOMPARE_EQ(rv, t);
+    }
+
+    // mutable access:
+    {
+        T t2 = mutate(t);
+
+        auto &&rs = get<T>(stdv);
+        QCOMPARE_EQ(rs, t);
+        rs = t2;
+        auto &&rs2 = get<T>(stdv);
+        QCOMPARE_EQ(rs2, t2);
+
+        auto &&rv = get<T>(v);
+        QCOMPARE_EQ(rv, t);
+        rv = t2;
+        auto &&rv2 = get<T>(v);
+        QCOMPARE_EQ(rv2, t2);
+    }
+}
+
 QTEST_MAIN(tst_QVariant)
 #include "tst_qvariant.moc"
diff --git a/tests/auto/corelib/mimetypes/qmimedatabase/qmimedatabase-cache/CMakeLists.txt b/tests/auto/corelib/mimetypes/qmimedatabase/qmimedatabase-cache/CMakeLists.txt
index 92bc339e..d9e05538 100644
--- a/tests/auto/corelib/mimetypes/qmimedatabase/qmimedatabase-cache/CMakeLists.txt
+++ b/tests/auto/corelib/mimetypes/qmimedatabase/qmimedatabase-cache/CMakeLists.txt
@@ -32,6 +32,7 @@ set(testdata_resource_files
     "../qml-again.xml"
     "../test.qml"
     "../text-x-objcsrc.xml"
+    "../text-plain-subclass.xml"
     "../yast2-metapackage-handler-mimetypes.xml"
 )
 
diff --git a/tests/auto/corelib/mimetypes/qmimedatabase/qmimedatabase-xml/CMakeLists.txt b/tests/auto/corelib/mimetypes/qmimedatabase/qmimedatabase-xml/CMakeLists.txt
index 49ff4d13..e44ea7b5 100644
--- a/tests/auto/corelib/mimetypes/qmimedatabase/qmimedatabase-xml/CMakeLists.txt
+++ b/tests/auto/corelib/mimetypes/qmimedatabase/qmimedatabase-xml/CMakeLists.txt
@@ -32,6 +32,7 @@ set(testdata_resource_files
     "../qml-again.xml"
     "../test.qml"
     "../text-x-objcsrc.xml"
+    "../text-plain-subclass.xml"
     "../yast2-metapackage-handler-mimetypes.xml"
 )
 
diff --git a/tests/auto/corelib/mimetypes/qmimedatabase/text-plain-subclass.xml b/tests/auto/corelib/mimetypes/qmimedatabase/text-plain-subclass.xml
new file mode 100644
index 00000000..7b5cb750
--- /dev/null
+++ b/tests/auto/corelib/mimetypes/qmimedatabase/text-plain-subclass.xml
@@ -0,0 +1,15 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<mime-info xmlns='http://www.freedesktop.org/standards/shared-mime-info'>
+    <mime-type type="text/x-microdvd">
+        <comment>MicroDVD subtitles</comment>
+        <sub-class-of type="text/plain"/>
+        <magic priority="50">
+            <match type="string" value="{1}" offset="0"/>
+            <match type="string" value="{0}" offset="0"/>
+            <match type="string" value="}{" offset="0:6"/>
+        </magic>
+        <generic-icon name="text-x-generic"/>
+        <glob pattern="*.sub"/>
+        <glob pattern="*.txt"/>
+    </mime-type>
+</mime-info>
diff --git a/tests/auto/corelib/mimetypes/qmimedatabase/tst_qmimedatabase.cpp b/tests/auto/corelib/mimetypes/qmimedatabase/tst_qmimedatabase.cpp
index d696c4e3..ee9e430b 100644
--- a/tests/auto/corelib/mimetypes/qmimedatabase/tst_qmimedatabase.cpp
+++ b/tests/auto/corelib/mimetypes/qmimedatabase/tst_qmimedatabase.cpp
@@ -2,7 +2,6 @@
 // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only WITH Qt-GPL-exception-1.0
 
 #include "tst_qmimedatabase.h"
-
 #include <qmimedatabase.h>
 
 #include "qstandardpaths.h"
@@ -31,18 +30,18 @@
 
 using namespace Qt::StringLiterals;
 
-static const char *const additionalMimeFiles[] = {
-    "yast2-metapackage-handler-mimetypes.xml",
-    "qml-again.xml",
-    "text-x-objcsrc.xml",
-    "invalid-magic1.xml",
-    "invalid-magic2.xml",
-    "invalid-magic3.xml",
-    "magic-and-hierarchy.xml",
-    0
-};
+static const char *const additionalMimeFiles[] = { "yast2-metapackage-handler-mimetypes.xml",
+                                                   "qml-again.xml",
+                                                   "text-x-objcsrc.xml",
+                                                   "text-plain-subclass.xml",
+                                                   "invalid-magic1.xml",
+                                                   "invalid-magic2.xml",
+                                                   "invalid-magic3.xml",
+                                                   "magic-and-hierarchy.xml",
+                                                   0 };
 
-#define RESOURCE_PREFIX ":/qt-project.org/qmime/"
+static const auto s_resourcePrefix = ":/qt-project.org/qmime/"_L1;
+static const auto s_inodeMimetype = "inode/directory"_L1;
 
 void initializeLang()
 {
@@ -137,7 +136,7 @@ void tst_QMimeDatabase::initTestCase()
     qDebug() << "\nGlobal XDG_DATA_DIRS: " << m_globalXdgDir;
 
     const QString freeDesktopXml = QStringLiteral("freedesktop.org.xml");
-    const QString xmlFileName = QLatin1String(RESOURCE_PREFIX "packages/") + freeDesktopXml;
+    const QString xmlFileName = s_resourcePrefix + "packages/"_L1 + freeDesktopXml;
     const QString xmlTargetFileName = globalPackageDir + QLatin1Char('/') + freeDesktopXml;
     QVERIFY2(copyResourceFile(xmlFileName, xmlTargetFileName, &errorMessage), qPrintable(errorMessage));
 #endif
@@ -148,7 +147,7 @@ void tst_QMimeDatabase::initTestCase()
 
     errorMessage = QString::fromLatin1("Cannot find '%1'");
     for (uint i = 0; i < sizeof additionalMimeFiles / sizeof additionalMimeFiles[0] - 1; i++) {
-        const QString resourceFilePath = QString::fromLatin1(RESOURCE_PREFIX) + QLatin1String(additionalMimeFiles[i]);
+        const QString resourceFilePath = s_resourcePrefix + QLatin1String(additionalMimeFiles[i]);
         QVERIFY2(QFile::exists(resourceFilePath), qPrintable(errorMessage.arg(resourceFilePath)));
         m_additionalMimeFileNames.append(QLatin1String(additionalMimeFiles[i]));
         m_additionalMimeFilePaths.append(resourceFilePath);
@@ -236,8 +235,8 @@ void tst_QMimeDatabase::mimeTypeForFileName_data()
     QTest::newRow("case-sensitive uppercase match") << "textfile.C" << "text/x-c++src";
     QTest::newRow("case-sensitive lowercase match") << "textfile.c" << "text/x-csrc";
     QTest::newRow("case-sensitive long-extension match") << "foo.PS.gz" << "application/x-gzpostscript";
-    QTest::newRow("case-sensitive-only match") << "core" << "application/x-core";
-    QTest::newRow("case-sensitive-only match") << "Core" << "application/octet-stream"; // #198477
+    QTest::newRow("case-sensitive-only-match-core") << "core" << "application/x-core";
+    QTest::newRow("case-sensitive-only-match-Core") << "Core" << "application/octet-stream"; // #198477
 
     QTest::newRow("desktop file") << "foo.desktop" << "application/x-desktop";
     QTest::newRow("old kdelnk file is x-desktop too") << "foo.kdelnk" << "application/x-desktop";
@@ -318,9 +317,7 @@ void tst_QMimeDatabase::mimeTypesForFileName()
     QFETCH(QStringList, expectedMimeTypes);
     QMimeDatabase db;
     QList<QMimeType> mimes = db.mimeTypesForFileName(fileName);
-    QStringList mimeNames;
-    foreach (const QMimeType &mime, mimes)
-        mimeNames.append(mime.name());
+    QStringList mimeNames = mimeTypeNames(mimes);
     QCOMPARE(mimeNames, expectedMimeTypes);
 }
 
@@ -362,7 +359,7 @@ void tst_QMimeDatabase::inheritance()
     QVERIFY(msword.inherits(olestorage.name()));
     QVERIFY(msword.inherits(QLatin1String("application/octet-stream")));
 
-    const QMimeType directory = db.mimeTypeForName(QString::fromLatin1("inode/directory"));
+    const QMimeType directory = db.mimeTypeForName(s_inodeMimetype);
     QVERIFY(directory.isValid());
     QCOMPARE(directory.parentMimeTypes().size(), 0);
     QVERIFY(!directory.inherits(QLatin1String("application/octet-stream")));
@@ -456,7 +453,7 @@ void tst_QMimeDatabase::icons()
 {
     QMimeDatabase db;
     QMimeType directory = db.mimeTypeForFile(QString::fromLatin1("/"));
-    QCOMPARE(directory.name(), QString::fromLatin1("inode/directory"));
+    QCOMPARE(directory.name(), s_inodeMimetype);
     QCOMPARE(directory.iconName(), QString::fromLatin1("inode-directory"));
     QCOMPARE(directory.genericIconName(), QString::fromLatin1("folder"));
 
@@ -475,7 +472,7 @@ void tst_QMimeDatabase::comment()
 
     QLocale::setDefault(QLocale("de"));
     QMimeDatabase db;
-    QMimeType directory = db.mimeTypeForName(QStringLiteral("inode/directory"));
+    QMimeType directory = db.mimeTypeForName(s_inodeMimetype);
     QCOMPARE(directory.comment(), QStringLiteral("Ordner"));
     QLocale::setDefault(QLocale("fr"));
     QCOMPARE(directory.comment(), QStringLiteral("dossier"));
@@ -618,7 +615,7 @@ void tst_QMimeDatabase::mimeTypeForData()
     QCOMPARE(buffer.pos(), qint64(0));
 }
 
-void tst_QMimeDatabase::mimeTypeForFileAndContent_data()
+void tst_QMimeDatabase::mimeTypeForFileNameAndData_data()
 {
     QTest::addColumn<QString>("name");
     QTest::addColumn<QByteArray>("data");
@@ -637,7 +634,7 @@ void tst_QMimeDatabase::mimeTypeForFileAndContent_data()
     QTest::newRow("text.xls, found by extension, user is in control") << QString::fromLatin1("text.xls") << oleData << "application/vnd.ms-excel";
 }
 
-void tst_QMimeDatabase::mimeTypeForFileAndContent()
+void tst_QMimeDatabase::mimeTypeForFileNameAndData()
 {
     QFETCH(QString, name);
     QFETCH(QByteArray, data);
@@ -758,13 +755,13 @@ void tst_QMimeDatabase::suffixes_data()
     QTest::addColumn<QString>("preferredSuffix");
 
     QTest::newRow("mimetype with a single pattern") << "application/pdf" << "*.pdf" << "pdf";
-    QTest::newRow("mimetype with multiple patterns") << "application/x-kpresenter" << "*.kpr;*.kpt" << "kpr";
+    QTest::newRow("mimetype-with-multiple-patterns-kpr") << "application/x-kpresenter" << "*.kpr;*.kpt" << "kpr";
     // The preferred suffix for image/jpeg is *.jpg, as per https://bugs.kde.org/show_bug.cgi?id=176737
     QTest::newRow("jpeg") << "image/jpeg" << "*.jpe;*.jpg;*.jpeg" << "jpg";
     QTest::newRow("mimetype with many patterns") << "application/vnd.wordperfect" << "*.wp;*.wp4;*.wp5;*.wp6;*.wpd;*.wpp" << "wp";
     QTest::newRow("oasis text mimetype") << "application/vnd.oasis.opendocument.text" << "*.odt" << "odt";
     QTest::newRow("oasis presentation mimetype") << "application/vnd.oasis.opendocument.presentation" << "*.odp" << "odp";
-    QTest::newRow("mimetype with multiple patterns") << "text/plain" << "*.asc;*.txt;*,v" << "txt";
+    QTest::newRow("mimetype-multiple-patterns-text-plain") << "text/plain" << "*.asc;*.txt;*,v" << "txt";
     QTest::newRow("mimetype with uncommon pattern") << "text/x-readme" << "README*" << QString();
     QTest::newRow("mimetype with no patterns") << "application/x-ole-storage" << QString() << QString();
     QTest::newRow("default_mimetype") << "application/octet-stream" << QString() << QString();
@@ -1034,7 +1031,7 @@ static bool waitAndRunUpdateMimeDatabase(const QString &path)
     QFileInfo mimeCacheInfo(path + QString::fromLatin1("/mime.cache"));
     if (mimeCacheInfo.exists()) {
         // Wait until the beginning of the next second
-        while (mimeCacheInfo.lastModified().secsTo(QDateTime::currentDateTimeUtc()) == 0) {
+        while (mimeCacheInfo.lastModified(QTimeZone::UTC).secsTo(QDateTime::currentDateTimeUtc()) == 0) {
             QTest::qSleep(200);
         }
     }
@@ -1106,7 +1103,7 @@ void tst_QMimeDatabase::installNewGlobalMimeType()
     checkHasMimeType("text/x-suse-ymp");
 
     // Test that a double-definition of a mimetype doesn't lead to sniffing ("conflicting globs").
-    const QString qmlTestFile = QLatin1String(RESOURCE_PREFIX "test.qml");
+    const QString qmlTestFile = s_resourcePrefix + "test.qml"_L1;
     QVERIFY2(!qmlTestFile.isEmpty(),
              qPrintable(QString::fromLatin1("Cannot find '%1' starting from '%2'").
                         arg("test.qml", QDir::currentPath())));
@@ -1119,10 +1116,10 @@ void tst_QMimeDatabase::installNewGlobalMimeType()
         QCOMPARE(objcsrc.globPatterns(), QStringList());
     }
 
-    const QString fooTestFile = QLatin1String(RESOURCE_PREFIX "magic-and-hierarchy.foo");
+    const QString fooTestFile = s_resourcePrefix + "magic-and-hierarchy.foo"_L1;
     QCOMPARE(db.mimeTypeForFile(fooTestFile).name(), QString::fromLatin1("application/foo"));
 
-    const QString fooTestFile2 = QLatin1String(RESOURCE_PREFIX "magic-and-hierarchy2.foo");
+    const QString fooTestFile2 = s_resourcePrefix + "magic-and-hierarchy2.foo"_L1;
     QCOMPARE(db.mimeTypeForFile(fooTestFile2).name(), QString::fromLatin1("application/vnd.qnx.bar-descriptor"));
 
     // Test if we can use the default comment
@@ -1198,9 +1195,11 @@ void tst_QMimeDatabase::installNewLocalMimeType()
         QVERIFY(objcsrc.isValid());
         QCOMPARE(objcsrc.globPatterns(), QStringList());
     }
+    QCOMPARE(db.mimeTypeForFile(QLatin1String("foo.txt"), QMimeDatabase::MatchExtension).name(),
+             QString::fromLatin1("text/plain"));
 
     // Test that a double-definition of a mimetype doesn't lead to sniffing ("conflicting globs").
-    const QString qmlTestFile = QLatin1String(RESOURCE_PREFIX "test.qml");
+    const QString qmlTestFile = s_resourcePrefix + "test.qml"_L1;
     QVERIFY2(!qmlTestFile.isEmpty(),
              qPrintable(QString::fromLatin1("Cannot find '%1' starting from '%2'").
                         arg("test.qml", QDir::currentPath())));
diff --git a/tests/auto/corelib/mimetypes/qmimedatabase/tst_qmimedatabase.h b/tests/auto/corelib/mimetypes/qmimedatabase/tst_qmimedatabase.h
index 65f391fd..adca5ffc 100644
--- a/tests/auto/corelib/mimetypes/qmimedatabase/tst_qmimedatabase.h
+++ b/tests/auto/corelib/mimetypes/qmimedatabase/tst_qmimedatabase.h
@@ -36,8 +36,8 @@ private slots:
     void mimeTypeForUrl();
     void mimeTypeForData_data();
     void mimeTypeForData();
-    void mimeTypeForFileAndContent_data();
-    void mimeTypeForFileAndContent();
+    void mimeTypeForFileNameAndData_data();
+    void mimeTypeForFileNameAndData();
 #ifdef Q_OS_UNIX
     void mimeTypeForUnixSpecials_data();
     void mimeTypeForUnixSpecials();
diff --git a/tests/auto/corelib/plugin/qlibrary/tst_qlibrary.cpp b/tests/auto/corelib/plugin/qlibrary/tst_qlibrary.cpp
index 018756e8..885fafe8 100644
--- a/tests/auto/corelib/plugin/qlibrary/tst_qlibrary.cpp
+++ b/tests/auto/corelib/plugin/qlibrary/tst_qlibrary.cpp
@@ -256,10 +256,10 @@ void tst_QLibrary::setFileNameAndVersionTwice()
     QVERIFY(!library.isLoaded());
 
     // set back
+    // it'll look like it isn't loaded, but it is and we can't unload it!
     library.setFileNameAndVersion(directory + "/mylib", 1);
-    QVERIFY(library.isLoaded());
-    QVERIFY(library.unload());
     QVERIFY(!library.isLoaded());
+    QVERIFY(!library.unload());
 }
 
 void tst_QLibrary::load_data()
@@ -273,7 +273,7 @@ void tst_QLibrary::load_data()
     QTest::newRow( "notexist" ) << appDir + "/nolib" << false;
     QTest::newRow( "badlibrary" ) << appDir + "/qlibrary.pro" << false;
 
-#ifdef Q_OS_MAC
+#ifdef Q_OS_DARWIN
     QTest::newRow("ok (libmylib ver. 1)") << appDir + "/libmylib" <<true;
 #endif
 
@@ -432,12 +432,23 @@ void tst_QLibrary::resolve()
     QFETCH( QString, symbol );
     QFETCH( bool, goodPointer );
 
-    QLibrary library( lib );
-    testFunc func = (testFunc) library.resolve( symbol.toLatin1() );
-    if ( goodPointer ) {
-        QVERIFY( func != 0 );
+    QLibrary library(lib);
+    QVERIFY(!library.isLoaded());
+    testFunc func = (testFunc) library.resolve(symbol.toLatin1());
+
+    if (goodPointer) {
+        QVERIFY(library.isLoaded());
+        QVERIFY(func);
+
+        QLibrary lib2(lib);
+        QVERIFY(!lib2.isLoaded());
+        QVERIFY(lib2.load());
+
+        // this unload() won't unload and it must still be loaded
+        QVERIFY(!lib2.unload());
+        func();                     // doesn't crash
     } else {
-        QVERIFY( func == 0 );
+        QVERIFY(func == nullptr);
     }
     library.unload();
 }
@@ -462,7 +473,7 @@ void tst_QLibrary::isLibrary_data()
     QTest::newRow("version+.so+version") << QString("liboil-0.3.so.0.1.0") << so_VALID;
 
     // special tests:
-#ifdef Q_OS_MAC
+#ifdef Q_OS_DARWIN
     QTest::newRow("good (libmylib.1.0.0.dylib)") << QString("libmylib.1.0.0.dylib") << true;
     QTest::newRow("good (libmylib.dylib)") << QString("libmylib.dylib") << true;
     QTest::newRow("good (libmylib.so)") << QString("libmylib.so") << true;
@@ -499,7 +510,7 @@ void tst_QLibrary::errorString_data()
 #ifdef Q_OS_WIN
     QTest::newRow("bad load() with .dll suffix") << (int)Load << QString("nosuchlib.dll") << false << QString("Cannot load library nosuchlib.dll: The specified module could not be found.");
 //    QTest::newRow("bad unload") << (int)Unload << QString("nosuchlib.dll") << false << QString("QLibrary::unload_sys: Cannot unload nosuchlib.dll (The specified module could not be found.)");
-#elif defined Q_OS_MAC
+#elif defined Q_OS_DARWIN
 #else
     QTest::newRow("load invalid file") << (int)Load << QFINDTESTDATA("library_path/invalid.so") << false << QString("Cannot load library.*");
 #endif
@@ -647,7 +658,7 @@ void tst_QLibrary::multipleInstancesForOneLibrary()
         QCOMPARE(lib2.isLoaded(), false);
         lib1.load();
         QCOMPARE(lib1.isLoaded(), true);
-        QCOMPARE(lib2.isLoaded(), true);
+        QCOMPARE(lib2.isLoaded(), false);   // lib2 didn't call load()
         QCOMPARE(lib1.unload(), true);
         QCOMPARE(lib1.isLoaded(), false);
         QCOMPARE(lib2.isLoaded(), false);
@@ -656,7 +667,7 @@ void tst_QLibrary::multipleInstancesForOneLibrary()
         QCOMPARE(lib1.isLoaded(), true);
         QCOMPARE(lib2.isLoaded(), true);
         QCOMPARE(lib1.unload(), false);
-        QCOMPARE(lib1.isLoaded(), true);
+        QCOMPARE(lib1.isLoaded(), false);   // lib1 did call unload()
         QCOMPARE(lib2.isLoaded(), true);
         QCOMPARE(lib2.unload(), true);
         QCOMPARE(lib1.isLoaded(), false);
@@ -665,17 +676,6 @@ void tst_QLibrary::multipleInstancesForOneLibrary()
         // Finally; unload on that is already unloaded
         QCOMPARE(lib1.unload(), false);
     }
-
-    //now let's try with a 3rd one that will go out of scope
-    {
-        QLibrary lib1(lib);
-        QCOMPARE(lib1.isLoaded(), false);
-        lib1.load();
-        QCOMPARE(lib1.isLoaded(), true);
-    }
-    QLibrary lib2(lib);
-    //lib2 should be loaded because lib1 was loaded and never unloaded
-    QCOMPARE(lib2.isLoaded(), true);
 }
 
 QTEST_MAIN(tst_QLibrary)
diff --git a/tests/auto/corelib/plugin/qplugin/tst_qplugin.cpp b/tests/auto/corelib/plugin/qplugin/tst_qplugin.cpp
index aaed7023..0f4eae85 100644
--- a/tests/auto/corelib/plugin/qplugin/tst_qplugin.cpp
+++ b/tests/auto/corelib/plugin/qplugin/tst_qplugin.cpp
@@ -57,7 +57,7 @@ void tst_QPlugin::loadDebugPlugin()
         if (!QLibrary::isLibrary(fileName))
             continue;
         QPluginLoader loader(dir.filePath(fileName));
-#if defined(Q_OS_UNIX) && !defined(Q_OS_MAC)
+#if defined(Q_OS_UNIX) && !defined(Q_OS_DARWIN)
         // we can always load a plugin on unix
         QVERIFY(loader.load());
         QObject *object = loader.instance();
@@ -90,7 +90,7 @@ void tst_QPlugin::loadReleasePlugin()
         if (!QLibrary::isLibrary(fileName))
             continue;
         QPluginLoader loader(dir.filePath(fileName));
-#if defined(Q_OS_UNIX) && !defined(Q_OS_MAC)
+#if defined(Q_OS_UNIX) && !defined(Q_OS_DARWIN)
         // we can always load a plugin on unix
         QVERIFY(loader.load());
         QObject *object = loader.instance();
diff --git a/tests/auto/corelib/plugin/qpluginloader/tst_qpluginloader.cpp b/tests/auto/corelib/plugin/qpluginloader/tst_qpluginloader.cpp
index 68771231..7ae76bf9 100644
--- a/tests/auto/corelib/plugin/qpluginloader/tst_qpluginloader.cpp
+++ b/tests/auto/corelib/plugin/qpluginloader/tst_qpluginloader.cpp
@@ -278,7 +278,7 @@ void tst_QPluginLoader::errorString()
     QVERIFY(!unloaded);
     }
 
-#if !defined(Q_OS_WIN) && !defined(Q_OS_MAC) && !defined(Q_OS_HPUX)
+#if !defined(Q_OS_WIN) && !defined(Q_OS_DARWIN) && !defined(Q_OS_HPUX)
     {
     QPluginLoader loader( sys_qualifiedLibraryName("almostplugin"));     //a plugin with unresolved symbols
     loader.setLoadHints(QLibrary::ResolveAllSymbolsHint);
diff --git a/tests/auto/corelib/plugin/quuid/tst_quuid.cpp b/tests/auto/corelib/plugin/quuid/tst_quuid.cpp
index 6b1e6003..b6375965 100644
--- a/tests/auto/corelib/plugin/quuid/tst_quuid.cpp
+++ b/tests/auto/corelib/plugin/quuid/tst_quuid.cpp
@@ -25,6 +25,8 @@ private slots:
     void fromByteArray();
     void toRfc4122();
     void fromRfc4122();
+    void id128();
+    void uint128();
     void createUuidV3OrV5();
     void check_QDataStream();
     void isNull();
@@ -98,7 +100,7 @@ void tst_QUuid::fromChar()
     QCOMPARE(QUuid(), QUuid("fc69b59e-cc34-"));
     QCOMPARE(QUuid(), QUuid("fc69b59e-cc34"));
     QCOMPARE(QUuid(), QUuid("cc34"));
-    QCOMPARE(QUuid(), QUuid(NULL));
+    QCOMPARE(QUuid(), QUuid(nullptr));
 
     QCOMPARE(uuidB, QUuid(QString("{1ab6e93a-b1cb-4a87-ba47-ec7e99039a7b}")));
 }
@@ -217,6 +219,81 @@ void tst_QUuid::fromRfc4122()
     QCOMPARE(uuidB, QUuid::fromRfc4122(QByteArray::fromHex("1ab6e93ab1cb4a87ba47ec7e99039a7b")));
 }
 
+void tst_QUuid::id128()
+{
+    constexpr QUuid::Id128Bytes bytesA = { {
+        0xfc, 0x69, 0xb5, 0x9e,
+        0xcc, 0x34,
+        0x44, 0x36,
+        0xa4, 0x3c, 0xee, 0x95, 0xd1, 0x28, 0xb8, 0xc5,
+    } };
+    constexpr QUuid::Id128Bytes bytesB = { {
+        0x1a, 0xb6, 0xe9, 0x3a,
+        0xb1, 0xcb,
+        0x4a, 0x87,
+        0xba, 0x47, 0xec, 0x7e, 0x99, 0x03, 0x9a, 0x7b,
+    } };
+
+    QCOMPARE(QUuid(bytesA), uuidA);
+    QCOMPARE(QUuid(bytesB), uuidB);
+    QVERIFY(memcmp(uuidA.toBytes().data, bytesA.data, sizeof(QUuid::Id128Bytes)) == 0);
+    QVERIFY(memcmp(uuidB.toBytes().data, bytesB.data, sizeof(QUuid::Id128Bytes)) == 0);
+
+    QUuid::Id128Bytes leBytesA = {};
+    for (int i = 0; i < 16; i++)
+        leBytesA.data[15 - i] = bytesA.data[i];
+    QCOMPARE(QUuid(leBytesA, QSysInfo::LittleEndian), uuidA);
+    QVERIFY(memcmp(uuidA.toBytes(QSysInfo::LittleEndian).data, leBytesA.data, sizeof(leBytesA)) == 0);
+
+    // check the new q{To,From}{Big,Little}Endian() overloads
+    QUuid::Id128Bytes roundtrip = qFromLittleEndian(qToLittleEndian(bytesA));
+    QVERIFY(memcmp(roundtrip.data, bytesA.data, sizeof(bytesA)) == 0);
+    roundtrip = qFromBigEndian(qToBigEndian(bytesA));
+    QVERIFY(memcmp(roundtrip.data, bytesA.data, sizeof(bytesA)) == 0);
+#if Q_BYTE_ORDER == Q_LITTLE_ENDIAN
+    const QUuid::Id128Bytes beBytesA = qToBigEndian(leBytesA);
+    QVERIFY(memcmp(beBytesA.data, bytesA.data, sizeof(beBytesA)) == 0);
+    const QUuid::Id128Bytes otherLeBytesA = qFromBigEndian(bytesA);
+    QVERIFY(memcmp(otherLeBytesA.data, leBytesA.data, sizeof(leBytesA)) == 0);
+#else // Q_BIG_ENDIAN
+    const QUuid::Id128Bytes otherLeBytesA = qToLittleEndian(bytesA);
+    QVERIFY(memcmp(otherLeBytesA.data, leBytesA.data, sizeof(leBytesA)) == 0);
+    const QUuid::Id128Bytes beBytesA = qFromLittleEndian(leBytesA);
+    QVERIFY(memcmp(beBytesA.data, bytesA.data, sizeof(beBytesA)) == 0);
+#endif // Q_BYTE_ORDER == Q_LITTLE_ENDIAN
+}
+
+void tst_QUuid::uint128()
+{
+#ifdef QT_SUPPORTS_INT128
+    constexpr quint128 u = quint128(Q_UINT64_C(0xfc69b59ecc344436)) << 64
+                            | Q_UINT64_C(0xa43cee95d128b8c5); // This is LE
+    constexpr quint128 be = qToBigEndian(u);
+    constexpr QUuid uuid = QUuid::fromUInt128(be);
+    static_assert(uuid.toUInt128() == be, "Round-trip through QUuid failed");
+
+    QCOMPARE(uuid, uuidA);
+    QCOMPARE(quint64(uuid.toUInt128() >> 64), quint64(be >> 64));
+    QCOMPARE(quint64(uuid.toUInt128()), quint64(be));
+
+    quint128 le = qFromBigEndian(be);
+    QCOMPARE(quint64(uuid.toUInt128(QSysInfo::LittleEndian) >> 64), quint64(le >> 64));
+    QCOMPARE(quint64(uuid.toUInt128(QSysInfo::LittleEndian)), quint64(le));
+    QCOMPARE(QUuid::fromUInt128(le, QSysInfo::LittleEndian), uuidA);
+
+    QUuid::Id128Bytes bytes = { .data128 = { qToBigEndian(u) } };
+    QUuid uuid2(bytes);
+    QCOMPARE(uuid2, uuid);
+
+    // verify that toBytes() and toUInt128() provide bytewise similar result
+    constexpr quint128 val = uuid.toUInt128();
+    bytes = uuid.toBytes();
+    QVERIFY(memcmp(&val, bytes.data, sizeof(val)) == 0);
+#else
+    QSKIP("This platform has no support for 128-bit integer");
+#endif
+}
+
 void tst_QUuid::createUuidV3OrV5()
 {
     //"www.widgets.com" is also from RFC4122
@@ -396,7 +473,7 @@ void tst_QUuid::processUniqueness()
     QString processTwoOutput;
 
     // Start it once
-#ifdef Q_OS_MAC
+#ifdef Q_OS_DARWIN
     process.start("testProcessUniqueness/testProcessUniqueness.app");
 #elif defined(Q_OS_ANDROID)
     process.start("libtestProcessUniqueness.so");
@@ -407,7 +484,7 @@ void tst_QUuid::processUniqueness()
     processOneOutput = process.readAllStandardOutput();
 
     // Start it twice
-#ifdef Q_OS_MAC
+#ifdef Q_OS_DARWIN
     process.start("testProcessUniqueness/testProcessUniqueness.app");
 #elif defined(Q_OS_ANDROID)
     process.start("libtestProcessUniqueness.so");
diff --git a/tests/auto/corelib/serialization/qdatastream/tst_qdatastream.cpp b/tests/auto/corelib/serialization/qdatastream/tst_qdatastream.cpp
index a203861e..7ceab6da 100644
--- a/tests/auto/corelib/serialization/qdatastream/tst_qdatastream.cpp
+++ b/tests/auto/corelib/serialization/qdatastream/tst_qdatastream.cpp
@@ -295,6 +295,7 @@ static int NColorRoles[] = {
     QPalette::PlaceholderText + 1, // Qt_5_12
     QPalette::PlaceholderText + 1, // Qt_5_13, Qt_5_14, Qt_5_15
     QPalette::PlaceholderText + 1, // Qt_6_0
+    QPalette::Accent + 1,     // Qt_6_6
     0                              // add the correct value for Qt_5_14 here later
 };
 
@@ -2392,8 +2393,8 @@ void tst_QDataStream::setVersion()
     */
 
     // revise the test if new color roles or color groups are added
-    QVERIFY(QPalette::NColorRoles == QPalette::PlaceholderText + 1);
-    QCOMPARE(int(QPalette::NColorGroups), 3);
+    QCOMPARE(QPalette::NColorRoles, QPalette::Accent + 1);
+    QCOMPARE(static_cast<int>(QPalette::NColorGroups), 3);
 
     QByteArray ba2;
     QPalette pal1, pal2;
diff --git a/tests/auto/corelib/serialization/qxmlstream/CMakeLists.txt b/tests/auto/corelib/serialization/qxmlstream/CMakeLists.txt
index fbecf99b..a2beb762 100644
--- a/tests/auto/corelib/serialization/qxmlstream/CMakeLists.txt
+++ b/tests/auto/corelib/serialization/qxmlstream/CMakeLists.txt
@@ -19,7 +19,7 @@ qt_internal_add_test(tst_qxmlstream
         tst_qxmlstream.cpp
     LIBRARIES
         Qt::Network
-        Qt::GuiPrivate
+        Qt::CorePrivate
     TESTDATA
         ${test_data}
         ${tokenError}
diff --git a/tests/auto/corelib/serialization/qxmlstream/qc14n.h b/tests/auto/corelib/serialization/qxmlstream/qc14n.h
index 0a06f018..803fe06c 100644
--- a/tests/auto/corelib/serialization/qxmlstream/qc14n.h
+++ b/tests/auto/corelib/serialization/qxmlstream/qc14n.h
@@ -1,10 +1,11 @@
 // Copyright (C) 2016 The Qt Company Ltd.
 // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only WITH Qt-GPL-exception-1.0
 
-QT_FORWARD_DECLARE_CLASS(QIODevice)
-QT_FORWARD_DECLARE_CLASS(QString)
-
+#include <QtCore/QDebug>
 #include <QtCore/QFlags>
+#include <QtCore/QXmlStreamReader>
+
+#include <algorithm>
 
 class QC14N
 {
@@ -93,18 +94,11 @@ bool QC14N::isAttributesEqual(const QXmlStreamReader &r1,
 
     const QXmlStreamAttributes &attrs1 = r1.attributes();
     const QXmlStreamAttributes &attrs2 = r2.attributes();
-    const int len = attrs1.size();
-
-    if(len != attrs2.size())
+    if (attrs1.size() != attrs2.size())
         return false;
 
-    for(int i = 0; i < len; ++i)
-    {
-        if(!attrs2.contains(attrs1.at(i)))
-            return false;
-    }
-
-    return true;
+    auto existsInOtherList = [&attrs2](const auto &attr) { return attrs2.contains(attr); };
+    return std::all_of(attrs1.cbegin(), attrs1.cend(), existsInOtherList);
 }
 
 bool QC14N::isDifferent(const QXmlStreamReader &r1,
diff --git a/tests/auto/corelib/serialization/qxmlstream/tst_qxmlstream.cpp b/tests/auto/corelib/serialization/qxmlstream/tst_qxmlstream.cpp
index 2b722265..d924aefd 100644
--- a/tests/auto/corelib/serialization/qxmlstream/tst_qxmlstream.cpp
+++ b/tests/auto/corelib/serialization/qxmlstream/tst_qxmlstream.cpp
@@ -12,7 +12,7 @@
 #include <QXmlStreamReader>
 #include <QBuffer>
 #include <QStack>
-#include <QtGui/private/qzipreader_p.h>
+#include <private/qzipreader_p.h>
 
 #include "qc14n.h"
 
@@ -542,6 +542,7 @@ public:
 private slots:
     void initTestCase();
     void cleanupTestCase();
+    void runTestSuite();
     void reportFailures() const;
     void reportFailures_data();
     void checkBaseline() const;
@@ -629,7 +630,14 @@ void tst_QXmlStream::initTestCase()
         QFile::remove(destinationPath); // copy will fail if file exists
         QVERIFY(QFile::copy(fileInfo.filePath(), destinationPath));
     }
+}
 
+void tst_QXmlStream::cleanupTestCase()
+{
+}
+
+void tst_QXmlStream::runTestSuite()
+{
     QFile file(m_tempDir.filePath(catalogFile));
     QVERIFY2(file.open(QIODevice::ReadOnly),
              qPrintable(QString::fromLatin1("Failed to open the test suite catalog; %1").arg(file.fileName())));
@@ -637,10 +645,6 @@ void tst_QXmlStream::initTestCase()
     QVERIFY(m_handler.runTests(&file));
 }
 
-void tst_QXmlStream::cleanupTestCase()
-{
-}
-
 void tst_QXmlStream::reportFailures() const
 {
     QFETCH(bool, isError);
@@ -1292,6 +1296,14 @@ void tst_QXmlStream::hasAttribute() const
     // α is not representable in L1...
     QVERIFY(!atts.hasAttribute(QLatin1String("DOESNOTEXIST")));
 
+    /* string literals (UTF-8/16) */
+    QVERIFY(atts.hasAttribute(u8"atträbute"));
+    QVERIFY(atts.hasAttribute( u"atträbute"));
+    QVERIFY(atts.hasAttribute(u8"α"));
+    QVERIFY(atts.hasAttribute( u"α"));
+    QVERIFY(!atts.hasAttribute(u8"β"));
+    QVERIFY(!atts.hasAttribute( u"β"));
+
     /* Test with an empty & null namespaces. */
     QVERIFY(atts.hasAttribute(QString(), QLatin1String("attr2"))); /* A null string. */
     QVERIFY(atts.hasAttribute(QLatin1String(""), QLatin1String("attr2"))); /* An empty string. */
@@ -1900,4 +1912,3 @@ void tst_QXmlStream::tokenErrorHandling() const
 }
 
 #include "tst_qxmlstream.moc"
-// vim: et:ts=4:sw=4:sts=4
diff --git a/tests/auto/corelib/text/qbytearray/tst_qbytearray.cpp b/tests/auto/corelib/text/qbytearray/tst_qbytearray.cpp
index 0ca4f935..4c97640f 100644
--- a/tests/auto/corelib/text/qbytearray/tst_qbytearray.cpp
+++ b/tests/auto/corelib/text/qbytearray/tst_qbytearray.cpp
@@ -12,6 +12,9 @@
 
 #include "../shared/test_number_shared.h"
 
+#include <QtCore/q20iterator.h>
+#include <sstream>
+
 using namespace Qt::StringLiterals;
 
 class tst_QByteArray : public QObject
@@ -51,6 +54,9 @@ private slots:
     void appendFromRawData();
     void appendExtended_data();
     void appendExtended();
+    void assign();
+    void assignShared();
+    void assignUsesPrependBuffer();
     void insert();
     void insertExtended_data();
     void insertExtended();
@@ -73,7 +79,6 @@ private slots:
     void blockSizeCalculations();
 
     void resizeAfterFromRawData();
-    void appendAfterFromRawData();
     void toFromHex_data();
     void toFromHex();
     void toFromPercentEncoding();
@@ -945,6 +950,190 @@ void tst_QByteArray::appendExtended()
     QCOMPARE(array.size(), 11);
 }
 
+void tst_QByteArray::assign()
+{
+    // QByteArray &assign(QByteArrayView)
+    {
+        QByteArray ba;
+        QByteArray test("data");
+        QCOMPARE(ba.assign(test), test);
+        QCOMPARE(ba.size(), test.size());
+        test = "data\0data";
+        QCOMPARE(ba.assign(test), test);
+        QCOMPARE(ba.size(), test.size());
+        test = "data\0data"_ba;
+        QCOMPARE(ba.assign(test), test);
+        QCOMPARE(ba.size(), test.size());
+    }
+    // QByteArray &assign(qsizetype, char);
+    {
+        QByteArray ba;
+        QByteArray test("ddd");
+        QCOMPARE(ba.assign(3, 'd'), test);
+        QCOMPARE(ba.size(), test.size());
+        test = "xx";
+        QCOMPARE(ba.assign(20, 'd').assign(2, 'x'), test);
+        QCOMPARE(ba.size(), test.size());
+        test = "ddddd";
+        QCOMPARE(ba.assign(0, 'x').assign(5, 'd'), test);
+        QCOMPARE(ba.size(), test.size());
+        test = "\0\0\0"_ba;
+        QCOMPARE(ba.assign(0, 'x').assign(3, '\0'), test);
+        QCOMPARE(ba.size(), test.size());
+    }
+    // QByteArray &assign(InputIterator, InputIterator)
+    {
+        QByteArray ba;
+        QByteArrayView test;
+
+        QList<char> l = {'\0', 'T', 'E', 'S', 'T'};
+        ba.assign(l.begin(), l.end());
+        test = "\0TEST"_ba;
+        QCOMPARE(ba, test);
+        QCOMPARE(ba.size(), test.size());
+
+        const std::byte bytes[] = {std::byte('T'), std::byte(0), std::byte('S'), std::byte('T')};
+        test = QByteArrayView::fromArray(bytes);
+        QCOMPARE(ba.assign(test.begin(), test.end()), test);
+        QCOMPARE(ba.size(), test.size());
+
+        std::stringstream ss;
+        ss << "T " << '\0' << ' ' << "S " << "T ";
+        ba.assign(std::istream_iterator<char>{ss}, std::istream_iterator<char>{});
+        test = "T\0ST"_ba;
+        QCOMPARE(ba, test);
+        QCOMPARE(ba.size(), test.size());
+    }
+    // Test chaining
+    {
+        QByteArray ba;
+        QByteArray test("TTTTT");
+        char arr[] = {'T', 'E', 'S', 'T'};
+        ba.assign(std::begin(arr), std::end(arr)).assign({"Hello World!"}).assign(5, 'T');
+        QCOMPARE(ba, test);
+        QCOMPARE(ba.size(), test.size());
+        test = "DATA";
+        QCOMPARE(ba.assign(300, 'T').assign({"DATA"}), test);
+        QCOMPARE(ba.size(), test.size());
+        test = QByteArray(arr, q20::ssize(arr));
+        QCOMPARE(ba.assign(10, 'c').assign(std::begin(arr), std::end(arr)), test);
+        QCOMPARE(ba.size(), test.size());
+        test = "TTT";
+        QCOMPARE(ba.assign("data").assign(QByteArrayView::fromArray(
+                         {std::byte('T'), std::byte('T'), std::byte('T')})), test);
+        QCOMPARE(ba.size(), test.size());
+        test = "\0data";
+        QCOMPARE(ba.assign("data").assign("\0data"), test);
+        QCOMPARE(ba.size(), test.size());
+    }
+}
+
+void tst_QByteArray::assignShared()
+{
+    {
+        QByteArray ba;
+        ba.assign({"DATA"});
+        QVERIFY(ba.isDetached());
+        QCOMPARE(ba, QByteArray("DATA"));
+
+        auto baCopy = ba;
+        QVERIFY(!ba.isDetached());
+        QVERIFY(!baCopy.isDetached());
+        QVERIFY(ba.isSharedWith(baCopy));
+        QVERIFY(baCopy.isSharedWith(ba));
+
+        ba.assign(10, 'D');
+        QVERIFY(ba.isDetached());
+        QVERIFY(baCopy.isDetached());
+        QVERIFY(!ba.isSharedWith(baCopy));
+        QVERIFY(!baCopy.isSharedWith(ba));
+        QCOMPARE(ba, QByteArray("DDDDDDDDDD"));
+        QCOMPARE(baCopy, QByteArray("DATA"));
+    }
+    {
+        QByteArray ba("START");
+        QByteArrayView bav("DATA");
+        QVERIFY(ba.isDetached());
+        QCOMPARE(ba, QByteArray("START"));
+
+        auto copyForwardIt = ba;
+        QVERIFY(!ba.isDetached());
+        QVERIFY(!copyForwardIt.isDetached());
+        QVERIFY(ba.isSharedWith(copyForwardIt));
+        QVERIFY(copyForwardIt.isSharedWith(ba));
+
+        ba.assign(bav.begin(), bav.end());
+        QVERIFY(ba.isDetached());
+        QVERIFY(copyForwardIt.isDetached());
+        QVERIFY(!ba.isSharedWith(copyForwardIt));
+        QVERIFY(!copyForwardIt.isSharedWith(ba));
+        QCOMPARE(ba, QByteArray("DATA"));
+        QCOMPARE(copyForwardIt, QByteArray("START"));
+
+        auto copyInputIt = ba;
+        QVERIFY(!ba.isDetached());
+        QVERIFY(!copyInputIt.isDetached());
+        QVERIFY(ba.isSharedWith(copyInputIt));
+        QVERIFY(copyInputIt.isSharedWith(ba));
+
+        std::stringstream ss("1 2 3 4 5 6 ");
+        ba.assign(std::istream_iterator<char>{ss}, std::istream_iterator<char>{});
+        QVERIFY(ba.isDetached());
+        QVERIFY(copyInputIt.isDetached());
+        QVERIFY(!ba.isSharedWith(copyInputIt));
+        QVERIFY(!copyInputIt.isSharedWith(ba));
+        QCOMPARE(ba, QByteArray("123456"));
+        QCOMPARE(copyInputIt, QByteArray("DATA"));
+    }
+}
+
+void tst_QByteArray::assignUsesPrependBuffer()
+{
+    const auto capBegin = [](const QByteArray &ba) {
+        return ba.begin() - ba.d.freeSpaceAtBegin();
+    };
+    const auto capEnd = [](const QByteArray &ba) {
+        return ba.end() + ba.d.freeSpaceAtEnd();
+    };
+    // QByteArray &assign(QByteArrayView)
+    {
+        QByteArray withFreeSpaceAtBegin;
+        for (int i = 0; i < 100 && withFreeSpaceAtBegin.d.freeSpaceAtBegin() < 2; ++i)
+            withFreeSpaceAtBegin.prepend("data");
+        QCOMPARE_GT(withFreeSpaceAtBegin.d.freeSpaceAtBegin(), 1);
+
+        const auto oldCapBegin = capBegin(withFreeSpaceAtBegin);
+        const auto oldCapEnd = capEnd(withFreeSpaceAtBegin);
+
+        std::string test(withFreeSpaceAtBegin.d.freeSpaceAtBegin(), 'd');
+        withFreeSpaceAtBegin.assign(test);
+
+        QCOMPARE_EQ(withFreeSpaceAtBegin.d.freeSpaceAtBegin(), 0); // we used the prepend buffer
+        QCOMPARE_EQ(capBegin(withFreeSpaceAtBegin), oldCapBegin);
+        QCOMPARE_EQ(capEnd(withFreeSpaceAtBegin), oldCapEnd);
+        QCOMPARE(withFreeSpaceAtBegin, test.data());
+    }
+    // QByteArray &assign(InputIterator, InputIterator)
+    {
+        QByteArray withFreeSpaceAtBegin;
+        for (int i = 0; i < 100 && withFreeSpaceAtBegin.d.freeSpaceAtBegin() < 2; ++i)
+            withFreeSpaceAtBegin.prepend("data");
+        QCOMPARE_GT(withFreeSpaceAtBegin.d.freeSpaceAtBegin(), 1);
+
+        const auto oldCapBegin = capBegin(withFreeSpaceAtBegin);
+        const auto oldCapEnd = capEnd(withFreeSpaceAtBegin);
+
+        std::stringstream ss;
+        for (qsizetype i = 0; i < withFreeSpaceAtBegin.d.freeSpaceAtBegin(); ++i)
+            ss << "d ";
+
+        withFreeSpaceAtBegin.assign(std::istream_iterator<char>{ss}, std::istream_iterator<char>{});
+        QCOMPARE_EQ(withFreeSpaceAtBegin.d.freeSpaceAtBegin(), 0); // we used the prepend buffer
+        QCOMPARE_EQ(capBegin(withFreeSpaceAtBegin), oldCapBegin);
+        QCOMPARE_EQ(capEnd(withFreeSpaceAtBegin), oldCapEnd);
+    }
+}
+
 void tst_QByteArray::insert()
 {
     const char data[] = "data";
@@ -1116,7 +1305,15 @@ void tst_QByteArray::removeIf()
     QVERIFY(!a.isDetached());
 
     a = QByteArray("aBcAbC");
+    // Test when it's not shared
+    QVERIFY(a.isDetached());
     QCOMPARE(a.removeIf(removeA), QByteArray("BcbC"));
+
+    a = QByteArray("aBcAbC");
+    QByteArray b = a;
+    // Test when it's shared
+    QVERIFY(!b.isDetached());
+    QCOMPARE(b.removeIf(removeA), QByteArray("BcbC"));
 }
 
 void tst_QByteArray::erase()
@@ -1485,17 +1682,6 @@ void tst_QByteArray::resizeAfterFromRawData()
     QVERIFY(array.constData()[5] == 0);
 }
 
-void tst_QByteArray::appendAfterFromRawData()
-{
-    QByteArray arr;
-    {
-        char data[] = "X";
-        arr += QByteArray::fromRawData(data, sizeof(data));
-        data[0] = 'Y';
-    }
-    QCOMPARE(arr.at(0), 'X');
-}
-
 void tst_QByteArray::toFromHex_data()
 {
     QTest::addColumn<QByteArray>("str");
@@ -2357,7 +2543,7 @@ void tst_QByteArray::isLower()
 
 void tst_QByteArray::macTypes()
 {
-#ifndef Q_OS_MAC
+#ifndef Q_OS_DARWIN
     QSKIP("This is a Apple-only test");
 #else
     extern void tst_QByteArray_macTypes(); // in qbytearray_mac.mm
diff --git a/tests/auto/corelib/text/qbytearrayapisymmetry/tst_qbytearrayapisymmetry.cpp b/tests/auto/corelib/text/qbytearrayapisymmetry/tst_qbytearrayapisymmetry.cpp
index 514314d0..21c35d7b 100644
--- a/tests/auto/corelib/text/qbytearrayapisymmetry/tst_qbytearrayapisymmetry.cpp
+++ b/tests/auto/corelib/text/qbytearrayapisymmetry/tst_qbytearrayapisymmetry.cpp
@@ -1171,8 +1171,13 @@ void tst_QByteArrayApiSymmetry::toLong_data() const
     QTest::newRow("int32 max dec") << QByteArray("2147483647") << 10 << long(B32::max()) << true;
 
     if constexpr (sizeof(long) < sizeof(qlonglong)) {
+        QT_WARNING_PUSH
+        // See: https://github.com/llvm/llvm-project/issues/59448
+        QT_WARNING_DISABLE_CLANG("-Winteger-overflow")
         const qlonglong longMaxPlusOne = static_cast<qlonglong>(Bounds::max()) + 1;
         const qlonglong longMinMinusOne = static_cast<qlonglong>(Bounds::min()) - 1;
+        QT_WARNING_POP
+
         QTest::newRow("long max + 1") << QByteArray::number(longMaxPlusOne) << 10 << 0L << false;
         QTest::newRow("long min - 1") << QByteArray::number(longMinMinusOne) << 10 << 0L << false;
     }
diff --git a/tests/auto/corelib/text/qcollator/tst_qcollator.cpp b/tests/auto/corelib/text/qcollator/tst_qcollator.cpp
index 0a019404..f59404bf 100644
--- a/tests/auto/corelib/text/qcollator/tst_qcollator.cpp
+++ b/tests/auto/corelib/text/qcollator/tst_qcollator.cpp
@@ -52,7 +52,7 @@ void tst_QCollator::basics()
 
     // posix implementation supports only C and default locale,
     // so update it for Android and INTEGRITY builds
-#if defined(Q_OS_ANDROID) || defined(Q_OS_INTEGRITY)
+#if !QT_CONFIG(icu) && !defined(Q_OS_WIN) && !defined(Q_OS_MACOS)
     c3.setLocale(QLocale());
 #endif
     QCollatorSortKey key1 = c3.sortKey("test");
@@ -87,7 +87,7 @@ void tst_QCollator::moveSemantics()
     // test QCollatorSortKey move assignment
     // posix implementation supports only C and default locale,
     // so update it for Android and INTEGRITY builds
-#if defined(Q_OS_ANDROID) || defined(Q_OS_INTEGRITY)
+#if !QT_CONFIG(icu) && !defined(Q_OS_WIN) && !defined(Q_OS_MACOS)
     c1.setLocale(QLocale());
 #endif
     QCollatorSortKey key1 = c1.sortKey("1");
@@ -264,7 +264,7 @@ void tst_QCollator::compare()
         return compared < 0 ? -1 : compared > 0 ? 1 : 0;
     };
 
-#if defined(Q_OS_ANDROID) || defined(Q_OS_INTEGRITY)
+#if !QT_CONFIG(icu) && !defined(Q_OS_WIN) && !defined(Q_OS_MACOS)
     if (collator.locale() != QLocale::c() && collator.locale() != QLocale::system().collation())
         QSKIP("POSIX implementation of collation only supports C and system collation locales");
 #endif
@@ -272,9 +272,9 @@ void tst_QCollator::compare()
     if (numericMode)
         collator.setNumericMode(true);
 
-    int keyCompareResult = result;
-    [[maybe_unused]]int keyCompareCaseInsensitiveResult = caseInsensitiveResult;
-    [[maybe_unused]]int keyComparePunctuationResultResult = punctuationResult;
+    [[maybe_unused]] int keyCompareResult = result;
+    [[maybe_unused]] int keyCompareCaseInsensitiveResult = caseInsensitiveResult;
+    [[maybe_unused]] int keyComparePunctuationResultResult = punctuationResult;
 
     // trying to deal with special behavior of different OS-dependent collators
     if (collator.locale() == QLocale("C")) {
diff --git a/tests/auto/corelib/text/qlocale/tst_qlocale.cpp b/tests/auto/corelib/text/qlocale/tst_qlocale.cpp
index dfad9667..3ed1f738 100644
--- a/tests/auto/corelib/text/qlocale/tst_qlocale.cpp
+++ b/tests/auto/corelib/text/qlocale/tst_qlocale.cpp
@@ -23,7 +23,7 @@
 #include <math.h>
 #include <fenv.h>
 
-#if defined(Q_OS_UNIX) && !defined(Q_OS_MAC)
+#if defined(Q_OS_UNIX) && !defined(Q_OS_DARWIN)
 #    include <stdlib.h>
 #endif
 
@@ -43,7 +43,7 @@ private slots:
 #if defined(Q_OS_WIN)
     void windowsDefaultLocale();
 #endif
-#ifdef Q_OS_MAC
+#ifdef Q_OS_DARWIN
     void macDefaultLocale();
 #endif
 
@@ -82,6 +82,10 @@ private slots:
     void toDate();
     void toTime_data();
     void toTime();
+    void doubleRoundTrip_data();
+    void doubleRoundTrip();
+    void integerRoundTrip_data();
+    void integerRoundTrip();
     void negativeNumbers();
     void numberOptions();
     void dayName_data();
@@ -209,8 +213,8 @@ void tst_QLocale::ctor()
 
     {
         QLocale l;
-        QVERIFY(l.language() == default_lang);
-        QVERIFY(l.territory() == default_country);
+        QCOMPARE(l.language(), default_lang);
+        QCOMPARE(l.territory(), default_country);
     }
 
 #define TEST_CTOR(req_lang, req_script, req_country, exp_lang, exp_script, exp_country) \
@@ -265,7 +269,42 @@ void tst_QLocale::ctor()
     TEST_CTOR(Chinese, LatinScript, UnitedStates,
               Chinese, SimplifiedHanScript, China);
 
+    // Incompletely specified; find what likely subtags imply:
+    TEST_CTOR(AnyLanguage, AnyScript, Canada,
+              English, LatinScript, Canada);
+
 #undef TEST_CTOR
+
+    // QTBUG-64940: QLocale(Any, Any, land).territory() should normally be land:
+    constexpr QLocale::Territory exceptions[] = {
+        // There are, however, some exceptions:
+        QLocale::AmericanSamoa,
+        QLocale::Antarctica,
+        QLocale::AscensionIsland,
+        QLocale::BouvetIsland,
+        QLocale::CaribbeanNetherlands,
+        QLocale::ClippertonIsland,
+        QLocale::Curacao,
+        QLocale::Europe,
+        QLocale::EuropeanUnion,
+        QLocale::FrenchSouthernTerritories,
+        QLocale::Haiti,
+        QLocale::HeardAndMcDonaldIslands,
+        QLocale::OutlyingOceania,
+        QLocale::Palau,
+        QLocale::Samoa,
+        QLocale::SouthGeorgiaAndSouthSandwichIslands,
+        QLocale::TokelauTerritory,
+        QLocale::TristanDaCunha,
+        QLocale::TuvaluTerritory,
+        QLocale::Vanuatu
+    };
+    for (int i = int(QLocale::AnyTerritory) + 1; i <= int(QLocale::LastTerritory); ++i) {
+        const auto land = QLocale::Territory(i);
+        if (std::find(std::begin(exceptions), std::end(exceptions), land) != std::end(exceptions))
+            continue;
+        QCOMPARE(QLocale(QLocale::AnyLanguage, QLocale::AnyScript, land).territory(), land);
+    }
 }
 
 void tst_QLocale::defaulted_ctor()
@@ -890,12 +929,6 @@ void tst_QLocale::toReal_data()
     QTest::newRow("ru_RU Latin e") << u"ru_RU"_s << u"4e-3"_s << true << 4e-3;
     QTest::newRow("ru_RU Cyrilic e") << u"ru_RU"_s << u"4\u0435-3"_s << true << 4e-3;
 }
-#define EXPECT_NONSINGLE_FAILURES do { \
-        QEXPECT_FAIL("sv_SE 4e-3", "Code wrongly assumes single character, QTBUG-107801", Abort); \
-        QEXPECT_FAIL("se_NO 4e-3", "Code wrongly assumes single character, QTBUG-107801", Abort); \
-        QEXPECT_FAIL("ar_EG 4e-3", "Code wrongly assumes single character, QTBUG-107801", Abort); \
-        QEXPECT_FAIL("fa_IR 4e-3", "Code wrongly assumes single character, QTBUG-107801", Abort); \
-    } while (0)
 
 void tst_QLocale::stringToDouble_data()
 {
@@ -945,7 +978,6 @@ void tst_QLocale::stringToDouble()
 
     bool ok;
     double d = locale.toDouble(num_str, &ok);
-    EXPECT_NONSINGLE_FAILURES;
     QCOMPARE(ok, good);
 
     {
@@ -1045,7 +1077,6 @@ void tst_QLocale::stringToFloat()
     }
     bool ok;
     float f = locale.toFloat(num_str, &ok);
-    EXPECT_NONSINGLE_FAILURES;
     QCOMPARE(ok, good);
 
     if constexpr (std::numeric_limits<double>::has_denorm != std::denorm_present) {
@@ -1085,7 +1116,6 @@ void tst_QLocale::stringToFloat()
     }
 #undef MY_FLOAT_EPSILON
 }
-#undef EXPECT_NONSINGLE_FAILURES
 
 void tst_QLocale::doubleToString_data()
 {
@@ -1321,6 +1351,10 @@ void tst_QLocale::strtod_data()
     QTest::newRow("1e2000 cruft")     << QString("1e2000 cruft")     << qInf()        << 6  << false;
     QTest::newRow("-1e2000 cruft")    << QString("-1e2000 cruft")    << -qInf()       << 7  << false;
 
+    // NaN and nan
+    QTest::newRow("NaN") << QString("NaN") << qQNaN() << 3 << true;
+    QTest::newRow("nan") << QString("nan") << qQNaN() << 3 << true;
+
     // Underflow, ends with cruft - fails but reports right length:
     QTest::newRow("1e-2000 cruft")    << QString("1e-2000 cruft")    << 0.0           << 7  << false;
     QTest::newRow("-1e-2000 cruft")   << QString("-1e-2000 cruft")   << 0.0           << 8  << false;
@@ -2468,7 +2502,63 @@ void tst_QLocale::toTime()
         QCOMPARE(locale.toTime(string, QLocale::ShortFormat), result);
 }
 
-#ifdef Q_OS_MAC
+void tst_QLocale::doubleRoundTrip_data()
+{
+    QTest::addColumn<QString>("localeName");
+    QTest::addColumn<QString>("numberText");
+    QTest::addColumn<char>("numberFormat");
+
+    // Signs and exponent separator aren't single characters:
+    QTest::newRow("sv_SE 4e-06 g") // Swedish, Sweden
+        << u"sv_SE"_s << u"4\u00d7" "10^\u2212" "06"_s << 'g';
+    QTest::newRow("se_NO 4e-06 g") // Northern Sami, Norway
+        << u"se_NO"_s << u"4\u00b7" "10^\u2212" "06"_s << 'g';
+    QTest::newRow("ar_EG 4e-06 g") // Arabic, Egypt
+        << u"ar_EG"_s << u"\u0664\u0627\u0633\u061c-\u0660\u0666"_s << 'g';
+    QTest::newRow("fa_IR 4e-06 g") // Farsi, Iran
+        << u"fa_IR"_s << u"\u06f4\u00d7\u06f1\u06f0^\u200e\u2212\u06f0\u06f6"_s << 'g';
+}
+
+void tst_QLocale::doubleRoundTrip()
+{
+    QFETCH(QString, localeName);
+    QFETCH(QString, numberText);
+    QFETCH(char, numberFormat);
+
+    QLocale locale(localeName);
+    bool ok;
+
+    double number = locale.toDouble(numberText, &ok);
+    QVERIFY(ok);
+    QCOMPARE(locale.toString(number, numberFormat), numberText);
+}
+
+void tst_QLocale::integerRoundTrip_data()
+{
+    QTest::addColumn<QString>("localeName");
+    QTest::addColumn<QString>("numberText");
+
+    // Two-character signs:
+    // Arabic, Egypt
+    QTest::newRow("ar_EG -406") << u"ar_EG"_s << u"\u061c-\u0664\u0660\u0666"_s;
+    // Farsi, Iran
+    QTest::newRow("fa_IR -406") << u"fa_IR"_s << u"\u200e\u2212\u06f4\u06f0\u06f6"_s;
+}
+
+void tst_QLocale::integerRoundTrip()
+{
+    QFETCH(QString, localeName);
+    QFETCH(QString, numberText);
+
+    QLocale locale(localeName);
+    bool ok;
+
+    qlonglong number = locale.toLongLong(numberText, &ok);
+    QVERIFY(ok);
+    QCOMPARE(locale.toString(number), numberText);
+}
+
+#ifdef Q_OS_DARWIN
 
 // Format number string according to system locale settings.
 // Expected in format is US "1,234.56".
@@ -2570,7 +2660,7 @@ void tst_QLocale::macDefaultLocale()
     QCOMPARE(locale.weekdays(), days);
 
 }
-#endif // Q_OS_MAC
+#endif // Q_OS_DARWIN
 
 #if defined(Q_OS_WIN)
 #include <qt_windows.h>
@@ -2815,7 +2905,6 @@ void tst_QLocale::negativeNumbers()
     // Several Arabic locales have an invisible script-marker before their signs:
     const QLocale egypt(QLocale::Arabic, QLocale::Egypt);
     QCOMPARE(egypt.toString(-403), u"\u061c-\u0664\u0660\u0663"_s);
-    QEXPECT_FAIL("", "Code wrongly assumes single character, QTBUG-107801", Abort);
     i = egypt.toInt(u"\u061c-\u0664\u0660\u0663"_s, &ok);
     QVERIFY(ok);
     QCOMPARE(i, -403);
@@ -3114,7 +3203,11 @@ void tst_QLocale::dateFormat()
     // And, indeed, one for a negative year:
     old = sys.toString(QDate(-1173, 5, 1), QLocale::LongFormat);
     QVERIFY(!old.isEmpty());
-    QVERIFY2(old.contains(u"-1173"), qPrintable(old + QLatin1String(" for locale ") + sys.name()));
+    qsizetype yearDigitStart = old.indexOf(u"1173");
+    QVERIFY2(yearDigitStart != -1, qPrintable(old + QLatin1String(" for locale ") + sys.name()));
+    QStringView before = QStringView(old).first(yearDigitStart);
+    QVERIFY2(before.endsWith(QChar('-')) || before.endsWith(QChar(0x2212)),
+             qPrintable(old + QLatin1String(" has no minus sign for locale ") + sys.name()));
 }
 
 void tst_QLocale::timeFormat()
diff --git a/tests/auto/corelib/text/qregularexpression/tst_qregularexpression.cpp b/tests/auto/corelib/text/qregularexpression/tst_qregularexpression.cpp
index 6d7e15de..02c2725b 100644
--- a/tests/auto/corelib/text/qregularexpression/tst_qregularexpression.cpp
+++ b/tests/auto/corelib/text/qregularexpression/tst_qregularexpression.cpp
@@ -2446,54 +2446,79 @@ void tst_QRegularExpression::wildcard_data()
 {
     QTest::addColumn<QString>("pattern");
     QTest::addColumn<QString>("string");
-    QTest::addColumn<qsizetype>("foundIndex");
+    QTest::addColumn<bool>("matchesPathGlob");
+    QTest::addColumn<bool>("matchesNonPathGlob");
+    QTest::addColumn<bool>("anchored");
 
-    auto addRow = [](const char *pattern, const char *string, qsizetype foundIndex) {
-        QTest::addRow("%s@%s", pattern, string) << pattern << string << foundIndex;
+    auto addRow = [](const char *pattern, const char *string, bool matchesPathGlob, bool matchesNonPathGlob, bool anchored = true) {
+        QTest::addRow("%s@%s", pattern, string) << pattern << string << matchesPathGlob << matchesNonPathGlob << anchored;
     };
 
-    addRow("*.html", "test.html", 0);
-    addRow("*.html", "test.htm", -1);
-    addRow("*bar*", "foobarbaz", 0);
-    addRow("*", "Qt Rocks!", 0);
-    addRow("*.h", "test.cpp", -1);
-    addRow("*.???l", "test.html", 0);
-    addRow("*?", "test.html", 0);
-    addRow("*?ml", "test.html", 0);
-    addRow("*[*]", "test.html", -1);
-    addRow("*[?]","test.html", -1);
-    addRow("*[?]ml","test.h?ml", 0);
-    addRow("*[[]ml","test.h[ml", 0);
-    addRow("*[]]ml","test.h]ml", 0);
-    addRow("*.h[a-z]ml", "test.html", 0);
-    addRow("*.h[A-Z]ml", "test.html", -1);
-    addRow("*.h[A-Z]ml", "test.hTml", 0);
-    addRow("*.h[!A-Z]ml", "test.hTml", -1);
-    addRow("*.h[!A-Z]ml", "test.html", 0);
-    addRow("*.h[!T]ml", "test.hTml", -1);
-    addRow("*.h[!T]ml", "test.html", 0);
-    addRow("*.h[!T]m[!L]", "test.htmL", -1);
-    addRow("*.h[!T]m[!L]", "test.html", 0);
-    addRow("*.h[][!]ml", "test.h]ml", 0);
-    addRow("*.h[][!]ml", "test.h[ml", 0);
-    addRow("*.h[][!]ml", "test.h!ml", 0);
+    addRow("*.html", "test.html", true, true);
+    addRow("*.html", "test.htm", false, false);
+    addRow("*bar*", "foobarbaz", true, true);
+    addRow("*", "Qt Rocks!", true, true);
+    addRow("*.h", "test.cpp", false, false);
+    addRow("*.???l", "test.html", true, true);
+    addRow("*?", "test.html", true, true);
+    addRow("*?ml", "test.html", true, true);
+    addRow("*[*]", "test.html", false, false);
+    addRow("*[?]","test.html", false, false);
+    addRow("*[?]ml","test.h?ml", true, true);
+    addRow("*[[]ml","test.h[ml", true, true);
+    addRow("*[]]ml","test.h]ml", true, true);
+    addRow("*.h[a-z]ml", "test.html", true, true);
+    addRow("*.h[A-Z]ml", "test.html", false, false);
+    addRow("*.h[A-Z]ml", "test.hTml", true, true);
+    addRow("*.h[!A-Z]ml", "test.hTml", false, false);
+    addRow("*.h[!A-Z]ml", "test.html", true, true);
+    addRow("*.h[!T]ml", "test.hTml", false, false);
+    addRow("*.h[!T]ml", "test.html", true, true);
+    addRow("*.h[!T]m[!L]", "test.htmL", false, false);
+    addRow("*.h[!T]m[!L]", "test.html", true, true);
+    addRow("*.h[][!]ml", "test.h]ml", true, true);
+    addRow("*.h[][!]ml", "test.h[ml", true, true);
+    addRow("*.h[][!]ml", "test.h!ml", true, true);
 
-    addRow("foo/*/bar", "foo/baz/bar", 0);
-    addRow("foo/(*)/bar", "foo/baz/bar", -1);
-    addRow("foo/(*)/bar", "foo/(baz)/bar", 0);
-    addRow("foo/?/bar", "foo/Q/bar", 0);
-    addRow("foo/?/bar", "foo/Qt/bar", -1);
-    addRow("foo/(?)/bar", "foo/Q/bar", -1);
-    addRow("foo/(?)/bar", "foo/(Q)/bar", 0);
+    addRow("foo/*/bar", "foo/baz/bar", true, true);
+    addRow("foo/*/bar", "foo/fie/baz/bar", false, true);
+    addRow("foo?bar", "foo/bar", false, true);
+    addRow("foo/(*)/bar", "foo/baz/bar", false, false);
+    addRow("foo/(*)/bar", "foo/(baz)/bar", true, true);
+    addRow("foo/?/bar", "foo/Q/bar", true, true);
+    addRow("foo/?/bar", "foo/Qt/bar", false, false);
+    addRow("foo/(?)/bar", "foo/Q/bar", false, false);
+    addRow("foo/(?)/bar", "foo/(Q)/bar", true, true);
+
+    addRow("foo*bar", "foo/fie/baz/bar", false, true);
+    addRow("foo*bar", "foo bar", true, true);
+    addRow("foo*bar", "foo\tbar", true, true);
+    addRow("foo*bar", "foo\nbar", true, true);
+    addRow("foo*bar", "foo\r\nbar", true, true);
+
+    // different anchor modes
+    addRow("foo", "afoob", false, false, true);
+    addRow("foo", "afoob", true, true, false);
+
+    addRow("fie*bar", "foo/fie/baz/bar", false, false, true);
+    addRow("fie*bar", "foo/fie/baz/bar", false, true, false);
 
 #ifdef Q_OS_WIN
-    addRow("foo\\*\\bar", "foo\\baz\\bar", 0);
-    addRow("foo\\(*)\\bar", "foo\\baz\\bar", -1);
-    addRow("foo\\(*)\\bar", "foo\\(baz)\\bar", 0);
-    addRow("foo\\?\\bar", "foo\\Q\\bar", 0);
-    addRow("foo\\?\\bar", "foo\\Qt\\bar", -1);
-    addRow("foo\\(?)\\bar", "foo\\Q\\bar", -1);
-    addRow("foo\\(?)\\bar", "foo\\(Q)\\bar", 0);
+    addRow("foo\\*\\bar", "foo\\baz\\bar", true, true);
+    addRow("foo\\*\\bar", "foo/baz/bar", true, false);
+    addRow("foo\\*\\bar", "foo/baz\\bar", true, false);
+    addRow("foo\\*\\bar", "foo\\fie\\baz\\bar", false, true);
+    addRow("foo\\*\\bar", "foo/fie/baz/bar", false, false);
+    addRow("foo/*/bar", "foo\\baz\\bar", true, false);
+    addRow("foo/*/bar", "foo/baz/bar", true, true);
+    addRow("foo/*/bar", "foo\\fie\\baz\\bar", false, false);
+    addRow("foo/*/bar", "foo/fie/baz/bar", false, true);
+    addRow("foo\\(*)\\bar", "foo\\baz\\bar", false, false);
+    addRow("foo\\(*)\\bar", "foo\\(baz)\\bar", true, true);
+    addRow("foo\\?\\bar", "foo\\Q\\bar", true, true);
+    addRow("foo\\?\\bar", "foo\\Qt\\bar", false, false);
+    addRow("foo\\(?)\\bar", "foo\\Q\\bar", false, false);
+    addRow("foo\\(?)\\bar", "foo\\(Q)\\bar", true, true);
 #endif
 }
 
@@ -2501,12 +2526,22 @@ void tst_QRegularExpression::wildcard()
 {
     QFETCH(QString, pattern);
     QFETCH(QString, string);
-    QFETCH(qsizetype, foundIndex);
+    QFETCH(bool, matchesPathGlob);
+    QFETCH(bool, matchesNonPathGlob);
+    QFETCH(bool, anchored);
 
-    QRegularExpression re(QRegularExpression::wildcardToRegularExpression(pattern));
-    QRegularExpressionMatch match = re.match(string);
+    QRegularExpression::WildcardConversionOptions options = {};
+    if (!anchored)
+        options |= QRegularExpression::UnanchoredWildcardConversion;
 
-    QCOMPARE(match.capturedStart(), foundIndex);
+    {
+        QRegularExpression re(QRegularExpression::wildcardToRegularExpression(pattern, options));
+        QCOMPARE(string.contains(re), matchesPathGlob);
+    }
+    {
+        QRegularExpression re(QRegularExpression::wildcardToRegularExpression(pattern, options | QRegularExpression::NonPathWildcardConversion));
+        QCOMPARE(string.contains(re), matchesNonPathGlob);
+    }
 }
 
 void tst_QRegularExpression::testInvalidWildcard_data()
diff --git a/tests/auto/corelib/text/qstring/CMakeLists.txt b/tests/auto/corelib/text/qstring/CMakeLists.txt
index f7f84955..d0c233ac 100644
--- a/tests/auto/corelib/text/qstring/CMakeLists.txt
+++ b/tests/auto/corelib/text/qstring/CMakeLists.txt
@@ -9,6 +9,9 @@ if(APPLE)
     list(APPEND tst_qstring_extra_libraries ${FWFoundation})
     list(APPEND tst_qstring_extra_sources tst_qstring_mac.mm)
 endif()
+if(WASM)
+    list(APPEND tst_qstring_extra_sources tst_qstring_wasm.cpp)
+endif()
 
 foreach(test tst_qstring tst_qstring_restricted_ascii tst_qstring_no_cast_from_ascii)
     qt_internal_add_test(${test}
diff --git a/tests/auto/corelib/text/qstring/tst_qstring.cpp b/tests/auto/corelib/text/qstring/tst_qstring.cpp
index 3870dc4e..be59090b 100644
--- a/tests/auto/corelib/text/qstring/tst_qstring.cpp
+++ b/tests/auto/corelib/text/qstring/tst_qstring.cpp
@@ -27,9 +27,11 @@
 #include <qhash.h>
 #include <private/qtools_p.h>
 
+#include <forward_list>
 #include <string>
 #include <algorithm>
 #include <limits>
+#include <sstream>
 
 #include "../shared/test_number_shared.h"
 #include "../../../../shared/localechange.h"
@@ -281,11 +283,22 @@ static void do_apply1(MemFun mf)
     QFETCH(A1, a1);
     QFETCH(QString, expected);
 
-    Arg<ArgType>(arg).apply1(s, mf, a1);
+    // Test when the string is shared
+    QString str = s;
+    Arg<ArgType>(arg).apply1(str, mf, a1);
 
-    QCOMPARE(s, expected);
-    QCOMPARE(s.isEmpty(), expected.isEmpty());
-    QCOMPARE(s.isNull(), expected.isNull());
+    QCOMPARE(str, expected);
+    QCOMPARE(str.isEmpty(), expected.isEmpty());
+    QCOMPARE(str.isNull(), expected.isNull());
+
+    // Test when the string is not shared
+    str = s;
+    str.detach();
+    Arg<ArgType>(arg).apply1(str, mf, a1);
+    QCOMPARE(str, expected);
+    QCOMPARE(str.isEmpty(), expected.isEmpty());
+    // A detached string is not null
+    // QCOMPARE(str.isNull(), expected.isNull());
 }
 
 class tst_QString : public QObject
@@ -519,6 +532,10 @@ private slots:
 
     void insert_special_cases();
 
+    void assign();
+    void assign_shared();
+    void assign_uses_prepend_buffer();
+
     void simplified_data();
     void simplified();
     void trimmed();
@@ -563,6 +580,7 @@ private slots:
 
     void STL();
     void macTypes();
+    void wasmTypes();
     void isEmpty();
     void isNull();
     void nullness();
@@ -795,7 +813,14 @@ void tst_QString::replace_qchar_qchar()
     QFETCH(Qt::CaseSensitivity, cs);
     QFETCH(QString, expected);
 
-    QCOMPARE(src.replace(before, after, cs), expected);
+    QString str = src;
+    // Test when string is shared
+    QCOMPARE(str.replace(before, after, cs), expected);
+
+    str = src;
+    // Test when it's not shared
+    str.detach();
+    QCOMPARE(str.replace(before, after, cs), expected);
 }
 
 void tst_QString::replace_qchar_qstring_data()
@@ -840,7 +865,14 @@ void tst_QString::replace_qchar_qstring()
     QFETCH(Qt::CaseSensitivity, cs);
     QFETCH(QString, expected);
 
-    QCOMPARE(src.replace(before, after, cs), expected);
+    // Test when string needs detach
+    QString s = src;
+    QCOMPARE(s.replace(before, after, cs), expected);
+
+    // Test when it's not shared
+    s = src;
+    s.detach();
+    QCOMPARE(s.replace(before, after, cs), expected);
 }
 
 void tst_QString::replace_uint_uint_data()
@@ -1390,7 +1422,7 @@ void tst_QString::STL()
 
 void tst_QString::macTypes()
 {
-#ifndef Q_OS_MAC
+#ifndef Q_OS_DARWIN
     QSKIP("This is a Mac-only test");
 #else
     extern void tst_QString_macTypes(); // in qcore_foundation.mm
@@ -1398,6 +1430,16 @@ void tst_QString::macTypes()
 #endif
 }
 
+void tst_QString::wasmTypes()
+{
+#ifndef Q_OS_WASM
+    QSKIP("This is a WASM-only test");
+#else
+    extern void tst_QString_wasmTypes(); // in qcore_wasm.cpp
+    tst_QString_wasmTypes();
+#endif
+}
+
 void tst_QString::truncate()
 {
     QString nullStr;
@@ -2891,6 +2933,7 @@ void tst_QString::insert_data(DataOptions options)
     QTest::newRow("a.insert(1, ba)") << a << baC << 1 << (a + ba);
     QTest::newRow("ba.insert(1, a)") << ba << aC << 1 << (ba + a);
     QTest::newRow("ba.insert(2, b)") << ba << bC << 2 << (ba + b);
+    QTest::newRow("ba.insert(10, b)") << ba << bC << 10 << (ba + QString(10 - ba.size(), u' ') + b);
 
     QTest::newRow("null-insert-0-yumlaut") << null << yumlautC << 0 << yumlaut;
     QTest::newRow("empty-insert-0-yumlaut") << empty << yumlautC << 0 << yumlaut;
@@ -2969,23 +3012,64 @@ void tst_QString::insert_data(DataOptions options)
 void tst_QString::insert_special_cases()
 {
     QString a;
-    a = u"Ys"_s;
-    QCOMPARE(a.insert(1, u'e'), u"Yes");
-    QCOMPARE(a.insert(3, u'!'), u"Yes!");
-    QCOMPARE(a.insert(5, u'?'), u"Yes! ?");
-    QCOMPARE(a.insert(-1, u'a'), u"Yes! a?");
+    QString dummy_share;
+
+    {
+        // Test when string is not shared
+        a = u"Ys"_s;
+        QCOMPARE(a.insert(1, u'e'), u"Yes");
+        QCOMPARE(a.insert(3, u'!'), u"Yes!");
+        QCOMPARE(a.insert(5, u'?'), u"Yes! ?");
+        QCOMPARE(a.insert(-1, u'a'), u"Yes! a?");
+    }
+    {
+        // Test when string is shared
+        a = u"Ys"_s;
+        dummy_share = a;
+        QCOMPARE(a.insert(1, u'e'), u"Yes");
+        dummy_share = a;
+        QCOMPARE(a.insert(3, u'!'), u"Yes!");
+        dummy_share = a;
+        QCOMPARE(a.insert(5, u'?'), u"Yes! ?");
+        dummy_share = a;
+        QCOMPARE(a.insert(-1, u'a'), u"Yes! a?");
+    }
 
     a = u"ABC"_s;
-    QCOMPARE(a.insert(5, u"DEF"_s), u"ABC  DEF"_s);
+    dummy_share = a;
+    QCOMPARE(dummy_share.insert(5, u"DEF"_s), u"ABC  DEF"_s); // Shared
+    QCOMPARE(a.insert(5, u"DEF"_s), u"ABC  DEF"_s); // Not shared after dummy_shared.insert()
 
-    a = u"ABC"_s;
-    QCOMPARE(a.insert(2, QString()), u"ABC");
-    QCOMPARE(a.insert(0, u"ABC"_s), u"ABCABC");
-    QCOMPARE(a, u"ABCABC");
-    QCOMPARE(a.insert(0, a), u"ABCABCABCABC");
-    QCOMPARE(a, u"ABCABCABCABC");
-    QCOMPARE(a.insert(0, u'<'), u"<ABCABCABCABC");
-    QCOMPARE(a.insert(1, u'>'), u"<>ABCABCABCABC");
+    {
+        // Test when string is not shared
+        a = u"ABC"_s;
+        QCOMPARE(a.insert(2, QString()), u"ABC");
+        QCOMPARE(a.insert(0, u"ABC"_s), u"ABCABC");
+        QCOMPARE(a, u"ABCABC");
+        QCOMPARE(a.insert(0, a), u"ABCABCABCABC");
+
+        QCOMPARE(a, u"ABCABCABCABC");
+        QCOMPARE(a.insert(0, u'<'), u"<ABCABCABCABC");
+        QCOMPARE(a.insert(1, u'>'), u"<>ABCABCABCABC");
+    }
+    {
+        // Test when string is shared
+        a = u"ABC"_s;
+        dummy_share = a;
+        QCOMPARE(a.insert(2, QString()), u"ABC");
+        dummy_share = a;
+        QCOMPARE(a.insert(0, u"ABC"_s), u"ABCABC");
+        dummy_share = a;
+        QCOMPARE(a, u"ABCABC");
+        dummy_share = a;
+        QCOMPARE(a.insert(0, a), u"ABCABCABCABC");
+
+        QCOMPARE(a, u"ABCABCABCABC");
+        dummy_share = a;
+        QCOMPARE(a.insert(0, u'<'), u"<ABCABCABCABC");
+        dummy_share = a;
+        QCOMPARE(a.insert(1, u'>'), u"<>ABCABCABCABC");
+    }
 
     const QString montreal = QStringLiteral("Montreal");
     {
@@ -3003,7 +3087,7 @@ void tst_QString::insert_special_cases()
     {
         // Test when string is shared
         a = u"Meal"_s;
-        QString dummy_share = a;
+        dummy_share = a;
         QCOMPARE(a.insert(1, "ontr"_L1), montreal);
         dummy_share = a;
         QCOMPARE(a.insert(4, ""_L1), montreal);
@@ -3017,14 +3101,40 @@ void tst_QString::insert_special_cases()
         QCOMPARE(a.insert(0, u"a"_s), "aMontreal"_L1);
     }
 
-    a = u"Mont"_s;
-    QCOMPARE(a.insert(a.size(), "real"_L1), montreal);
-    QCOMPARE(a.insert(a.size() + 1, "ABC"_L1), u"Montreal ABC");
+    {
+        // Test when string is not shared
+        a = u"Mont"_s;
+        QCOMPARE(a.insert(a.size(), "real"_L1), montreal);
+        QCOMPARE(a.insert(a.size() + 1, "ABC"_L1), u"Montreal ABC");
+    }
+    {
+        // Test when string is shared
+        a = u"Mont"_s;
+        dummy_share = a;
+        QCOMPARE(a.insert(a.size(), "real"_L1), montreal);
+        dummy_share = a;
+        QCOMPARE(a.insert(a.size() + 1, "ABC"_L1), u"Montreal ABC");
+    }
+
+    {
+        // Test when string is not shared
+        a = u"AEF"_s;
+        QCOMPARE(a.insert(1, "BCD"_L1), u"ABCDEF");
+        QCOMPARE(a.insert(3, "-"_L1), u"ABC-DEF");
+        QCOMPARE(a.insert(a.size() + 1, "XYZ"_L1), u"ABC-DEF XYZ");
+    }
+
+    {
+        // Test when string is shared
+        a = u"AEF"_s;
+        dummy_share = a ;
+        QCOMPARE(a.insert(1, "BCD"_L1), u"ABCDEF");
+        dummy_share = a ;
+        QCOMPARE(a.insert(3, "-"_L1), u"ABC-DEF");
+        dummy_share = a ;
+        QCOMPARE(a.insert(a.size() + 1, "XYZ"_L1), u"ABC-DEF XYZ");
+    }
 
-    a = u"AEF"_s;
-    QCOMPARE(a.insert(1, "BCD"_L1), u"ABCDEF");
-    QCOMPARE(a.insert(3, "-"_L1), u"ABC-DEF");
-    QCOMPARE(a.insert(a.size() + 1, "XYZ"_L1), u"ABC-DEF XYZ");
 
     {
         a = u"one"_s;
@@ -3038,6 +3148,7 @@ void tst_QString::insert_special_cases()
         QString b(a.data_ptr()->freeSpaceAtEnd(), u'b');
         QCOMPARE(a.insert(a.size() + 1, b), u"aone "_s + b);
     }
+
     {
         a = u"onetwothree"_s;
         while (a.size() - 1)
@@ -3045,6 +3156,13 @@ void tst_QString::insert_special_cases()
         QString b(a.data_ptr()->freeSpaceAtEnd() + 1, u'b');
         QCOMPARE(a.insert(a.size() + 1, QLatin1String(b.toLatin1())), u"e "_s + b);
     }
+    {
+        a = u"onetwothree"_s;
+        while (a.size() - 1)
+            a.remove(0, 1);
+        QString b(a.data_ptr()->freeSpaceAtEnd() + 1, u'b');
+        QCOMPARE(a.insert(a.size() + 1, b), u"e "_s + b);
+    }
 }
 
 void tst_QString::append_data(DataOptions options)
@@ -3293,6 +3411,225 @@ void tst_QString::appendFromRawData()
     QCOMPARE_NE((void *)copy.constData(), (void *)str.constData());
 }
 
+void tst_QString::assign()
+{
+    // QString &assign(QAnyStringView)
+    {
+        QString str;
+        QCOMPARE(str.assign("data"), u"data");
+        QCOMPARE(str.size(), 4);
+        QCOMPARE(str.assign(u8"data\0data"), u"data\0data");
+        QCOMPARE(str.size(), 4);
+        QCOMPARE(str.assign(u"\0data\0data"), u"\0data\0data");
+        QCOMPARE(str.size(), 0);
+        QCOMPARE(str.assign(QAnyStringView("data\0")), u"data\0");
+        QCOMPARE(str.size(), 4);
+        QCOMPARE(str.assign(QStringView(u"(ノಠ益ಠ)ノ彡┻━┻\0")), u"(ノಠ益ಠ)ノ彡┻━┻\0");
+        QCOMPARE(str.size(), 11);
+        QCOMPARE(str.assign(QUtf8StringView(u8"٩(⁎❛ᴗ❛⁎)۶")), u"٩(⁎❛ᴗ❛⁎)۶");
+        QCOMPARE(str.size(), 9);
+        QCOMPARE(str.assign(QLatin1String("datadata")), u"datadata");
+        QCOMPARE(str.size(), 8);
+    }
+    // QString &assign(qsizetype, char);
+    {
+        QString str;
+        QCOMPARE(str.assign(3, u'è'), u"èèè");
+        QCOMPARE(str.size(), 3);
+        QCOMPARE(str.assign(20, u'd').assign(2, u'ᴗ'), u"ᴗᴗ");
+        QCOMPARE(str.size(), 2);
+        QCOMPARE(str.assign(0, u'x').assign(5, QLatin1Char('d')), u"ddddd");
+        QCOMPARE(str.size(), 5);
+        QCOMPARE(str.assign(3, u'x'), u"xxx");
+        QCOMPARE(str.size(), 3);
+    }
+    // QString &assign(InputIterator, InputIterator)
+    {
+        // Forward iterator versions
+        QString str;
+        const QString tstr = QString::fromUtf8(u8"(ノಠ益ಠ)\0ノ彡┻━┻");
+        QCOMPARE(str.assign(tstr.begin(), tstr.end()), u"(ノಠ益ಠ)\0ノ彡┻━┻");
+        QCOMPARE(str.size(), 6);
+
+        auto oldCap = str.capacity();
+        str.assign(tstr.begin(), tstr.begin()); // empty range
+        QCOMPARE_EQ(str.capacity(), oldCap);
+        QCOMPARE_EQ(str.size(), 0);
+
+        const char16_t c16[] = u"٩(⁎❛ᴗ❛⁎)۶ 🤷";
+        str.assign(std::begin(c16), std::end(c16) - 1);
+        QCOMPARE(str, c16);
+
+        std::u16string c16str(c16);
+        str.assign(c16str.begin(), c16str.end());
+        QCOMPARE(str, c16);
+
+        oldCap = str.capacity();
+        str.assign(c16str.begin(), c16str.begin()); // empty range
+        QCOMPARE_EQ(str.capacity(), oldCap);
+        QCOMPARE_EQ(str.size(), 0);
+
+        const char32_t c32[] = U"٩(⁎❛ᴗ❛⁎)۶ 🤷";
+        str.assign(std::begin(c32), std::end(c32) - 1);
+        QCOMPARE(str, c16);
+
+        std::u32string c32str(c32);
+        str.assign(c32str.begin(), c32str.end());
+        QCOMPARE(str, c16);
+
+        oldCap = str.capacity();
+        str.assign(c32str.begin(), c32str.begin()); // empty range
+        QCOMPARE_EQ(str.capacity(), oldCap);
+        QCOMPARE_EQ(str.size(), 0);
+
+        QVarLengthArray<QLatin1Char, 5> l1ch = {'F'_L1, 'G'_L1, 'H'_L1, 'I'_L1, 'J'_L1};
+        str.assign(l1ch.begin(), l1ch.end());
+        QCOMPARE(str, u"FGHIJ");
+        std::forward_list<QChar> qch = {u'G', u'H', u'I', u'J', u'K'};
+        str.assign(qch.begin(), qch.end());
+        QCOMPARE(str, u"GHIJK");
+        const QList<char16_t> qch16 = {u'X', u'H', u'I', u'J', u'K'}; // QList<T>::iterator need not be T*
+        str.assign(qch16.begin(), qch16.end());
+        QCOMPARE(str, u"XHIJK");
+#if defined(Q_OS_WIN)
+        QVarLengthArray<wchar_t> wch = {L'A', L'B', L'C', L'D', L'E'};
+        str.assign(wch.begin(), wch.end());
+        QCOMPARE(str, u"ABCDE");
+#endif
+        // Input iterator versions
+        std::stringstream ss("50 51 52 53 54");
+        str.assign(std::istream_iterator<ushort>{ss}, std::istream_iterator<ushort>{});
+        QCOMPARE(str, u"23456");
+
+        oldCap = str.capacity();
+        str.assign(std::istream_iterator<ushort>{}, std::istream_iterator<ushort>{}); // empty range
+        QCOMPARE_EQ(str.capacity(), oldCap);
+        QCOMPARE_EQ(str.size(), 0);
+    }
+    // Test chaining
+    {
+        QString str;
+        QString tstr = u"TEST DATA"_s;
+        str.assign(tstr.begin(), tstr.end()).assign({"Hello World!"}).assign(5, u'T');
+        QCOMPARE(str, u"TTTTT");
+        QCOMPARE(str.size(), 5);
+        QCOMPARE(str.assign(300, u'T').assign({"[̲̅$̲̅(̲̅5̲̅)̲̅$̲̅]"}), u"[̲̅$̲̅(̲̅5̲̅)̲̅$̲̅]");
+        QCOMPARE(str.size(), 19);
+        QCOMPARE(str.assign(10, u'c').assign(str.begin(), str.end()), str);
+        QCOMPARE(str.size(), 10);
+        QCOMPARE(str.assign("data").assign(QByteArrayView::fromArray(
+            {std::byte('T'), std::byte('T'), std::byte('T')})), u"TTT");
+        QCOMPARE(str.size(), 3);
+        QCOMPARE(str.assign("data").assign("\0data"), u"\0data");
+        QCOMPARE(str.size(), 0);
+    }
+}
+
+void tst_QString::assign_shared()
+{
+    {
+        QString str = "DATA"_L1;
+        QVERIFY(str.isDetached());
+        auto strCopy = str;
+        QVERIFY(!str.isDetached());
+        QVERIFY(!strCopy.isDetached());
+        QVERIFY(str.isSharedWith(strCopy));
+        QVERIFY(strCopy.isSharedWith(str));
+
+        str.assign(4, u'D');
+        QVERIFY(str.isDetached());
+        QVERIFY(strCopy.isDetached());
+        QVERIFY(!str.isSharedWith(strCopy));
+        QVERIFY(!strCopy.isSharedWith(str));
+        QCOMPARE(str, u"DDDD");
+        QCOMPARE(strCopy, u"DATA");
+    }
+    {
+        QString str = "DATA"_L1;
+        QVERIFY(str.isDetached());
+        auto copyForwardIt = str;
+        QVERIFY(!str.isDetached());
+        QVERIFY(!copyForwardIt.isDetached());
+        QVERIFY(str.isSharedWith(copyForwardIt));
+        QVERIFY(copyForwardIt.isSharedWith(str));
+
+        QString tstr = u"DDDD"_s;
+        str.assign(tstr.begin(), tstr.end());
+        QVERIFY(str.isDetached());
+        QVERIFY(copyForwardIt.isDetached());
+        QVERIFY(!str.isSharedWith(copyForwardIt));
+        QVERIFY(!copyForwardIt.isSharedWith(str));
+        QCOMPARE(str, u"DDDD");
+        QCOMPARE(copyForwardIt, u"DATA");
+    }
+    {
+        QString str = "DATA"_L1;
+        QVERIFY(str.isDetached());
+        auto copyInputIt = str;
+        QVERIFY(!str.isDetached());
+        QVERIFY(!copyInputIt.isDetached());
+        QVERIFY(str.isSharedWith(copyInputIt));
+        QVERIFY(copyInputIt.isSharedWith(str));
+
+        std::stringstream ss("49 50 51 52 53 54 ");
+        str.assign(std::istream_iterator<ushort>{ss}, std::istream_iterator<ushort>{});
+        QVERIFY(str.isDetached());
+        QVERIFY(copyInputIt.isDetached());
+        QVERIFY(!str.isSharedWith(copyInputIt));
+        QVERIFY(!copyInputIt.isSharedWith(str));
+
+        QCOMPARE(str, u"123456");
+        QCOMPARE(copyInputIt, u"DATA");
+    }
+}
+
+void tst_QString::assign_uses_prepend_buffer()
+{
+    const auto capBegin = [](const QString &s) {
+        return s.begin() - s.d.freeSpaceAtBegin();
+    };
+    const auto capEnd = [](const QString &s) {
+        return s.end() + s.d.freeSpaceAtEnd();
+    };
+    // QString &assign(QAnyStringView)
+    {
+        QString withFreeSpaceAtBegin;
+        for (int i = 0; i < 100 && withFreeSpaceAtBegin.d.freeSpaceAtBegin() < 2; ++i)
+            withFreeSpaceAtBegin.prepend(u'd');
+        QCOMPARE_GT(withFreeSpaceAtBegin.d.freeSpaceAtBegin(), 1);
+
+        const auto oldCapBegin = capBegin(withFreeSpaceAtBegin);
+        const auto oldCapEnd = capEnd(withFreeSpaceAtBegin);
+
+        QString test(withFreeSpaceAtBegin.d.freeSpaceAtBegin(), u'ȍ');
+        withFreeSpaceAtBegin.assign(test);
+
+        QCOMPARE_EQ(withFreeSpaceAtBegin.d.freeSpaceAtBegin(), 0); // we used the prepend buffer
+        QCOMPARE_EQ(capBegin(withFreeSpaceAtBegin), oldCapBegin);
+        QCOMPARE_EQ(capEnd(withFreeSpaceAtBegin), oldCapEnd);
+        QCOMPARE(withFreeSpaceAtBegin, test);
+    }
+    // QString &assign(InputIterator, InputIterator)
+    {
+        QString withFreeSpaceAtBegin;
+        for (int i = 0; i < 100 && withFreeSpaceAtBegin.d.freeSpaceAtBegin() < 2; ++i)
+            withFreeSpaceAtBegin.prepend(u'd');
+        QCOMPARE_GT(withFreeSpaceAtBegin.d.freeSpaceAtBegin(), 1);
+
+        const auto oldCapBegin = capBegin(withFreeSpaceAtBegin);
+        const auto oldCapEnd = capEnd(withFreeSpaceAtBegin);
+
+        std::stringstream ss;
+        for (qsizetype i = 0; i < withFreeSpaceAtBegin.d.freeSpaceAtBegin(); ++i)
+            ss << "d ";
+
+        withFreeSpaceAtBegin.assign(std::istream_iterator<ushort>{ss}, std::istream_iterator<ushort>{});
+        QCOMPARE_EQ(withFreeSpaceAtBegin.d.freeSpaceAtBegin(), 0); // we used the prepend buffer
+        QCOMPARE_EQ(capBegin(withFreeSpaceAtBegin), oldCapBegin);
+        QCOMPARE_EQ(capEnd(withFreeSpaceAtBegin), oldCapEnd);
+    }
+}
+
 void tst_QString::operator_pluseq_special_cases()
 {
     QString a;
@@ -3534,18 +3871,36 @@ void tst_QString::replace_uint_uint()
     QFETCH( int, len );
     QFETCH( QString, after );
 
+    // Test when the string is shared
     QString s1 = string;
     s1.replace( (uint) index, (int) len, after );
     QTEST( s1, "result" );
+    // Test when it's not shared
+    s1 = string;
+    s1.detach();
+    s1.replace((uint)index, (int)len, after);
+    QTEST(s1, "result");
 
+    // Test when the string is shared
     QString s2 = string;
-    s2.replace( (uint) index, (uint) len, after.unicode(), after.size() );
-    QTEST( s2, "result" );
+    s2.replace((uint)index, (uint)len, after.unicode(), after.size());
+    QTEST(s2, "result");
+    // Test when it's not shared
+    s2 = string;
+    s2.detach();
+    s2.replace((uint)index, (uint)len, after.unicode(), after.size());
+    QTEST(s2, "result");
 
-    if ( after.size() == 1 ) {
+    if (after.size() == 1) {
+        // Test when the string is shared
         QString s3 = string;
-        s3.replace( (uint) index, (uint) len, QChar(after[0]) );
-        QTEST( s3, "result" );
+        s3.replace((uint)index, (uint)len, QChar(after[0]));
+        QTEST(s3, "result");
+        // Test when it's not shared
+        s3 = string;
+        s3.detach();
+        s3.replace((uint)index, (uint)len, QChar(after[0]));
+        QTEST(s3, "result");
 
 #if !defined(QT_NO_CAST_FROM_ASCII)
         // Testing replace(qsizetype, qsizetype, QLatin1Char) calls aren't ambiguous
@@ -3696,15 +4051,6 @@ void tst_QString::replace_string()
         s4.begin(); // Test when isShared() is false
         s4.replace(ch, after, cs);
         QCOMPARE(s4, result);
-
-#if !defined(QT_NO_CAST_FROM_ASCII)
-        // Test replace(QLatin1Char, after, cs) calls aren't ambiguous
-        if ( QChar(ch.toLatin1()) == ch ) {
-            QString s2 = string;
-            s2.replace( ch.toLatin1(), after, cs );
-            QCOMPARE(s2, result);
-        }
-#endif
     }
 
     QString s3 = string;
@@ -5939,24 +6285,23 @@ void tst_QString::arg()
 
     // ### Qt 7: clean this up, leave just the #else branch
 #if QT_VERSION < QT_VERSION_CHECK(6, 6, 0)
-    static const QRegularExpression nonAsciiArgWarning(
-            u"QString::arg\\(\\): the replacement \".*\" contains non-ASCII digits"_s);
+    static const QRegularExpression nonAsciiArgWarning("QString::arg\\(\\): the replacement \".*\" contains non-ASCII digits");
     QTest::ignoreMessage(QtWarningMsg, nonAsciiArgWarning);
-    QCOMPARE(u"%¹"_s.arg(u"foo"), u"foo");
+    QCOMPARE( QString("%¹").arg("foo"), QString("foo") );
     QTest::ignoreMessage(QtWarningMsg, nonAsciiArgWarning);
-    QCOMPARE(u"%¹%1"_s.arg(u"foo"), u"foofoo");
+    QCOMPARE( QString("%¹%1").arg("foo"), QString("foofoo") );
     QTest::ignoreMessage(QtWarningMsg, nonAsciiArgWarning);
-    QCOMPARE(u"%1²"_s.arg(u"E=mc"), u"E=mc");
+    QCOMPARE( QString("%1²").arg("E=mc"), QString("E=mc") );
     QTest::ignoreMessage(QtWarningMsg, nonAsciiArgWarning);
     QTest::ignoreMessage(QtWarningMsg, nonAsciiArgWarning);
-    QCOMPARE(u"%1²%2"_s.arg(u"a").arg(u"b"), u"ba");
+    QCOMPARE( QString("%1²%2").arg("a").arg("b"), QString("ba") );
     QTest::ignoreMessage(QtWarningMsg, nonAsciiArgWarning);
     QTest::ignoreMessage(QtWarningMsg, nonAsciiArgWarning);
     QTest::ignoreMessage(QtWarningMsg, nonAsciiArgWarning);
-    QCOMPARE(u"%¹%1²%2"_s.arg(u"a").arg(u"b"), u"a%1²b");
+    QCOMPARE( QString("%¹%1²%2").arg("a").arg("b"), QString("a%1²b") );
     QTest::ignoreMessage(QtWarningMsg, nonAsciiArgWarning);
     QTest::ignoreMessage(QtWarningMsg, nonAsciiArgWarning);
-    QCOMPARE(u"%2²%1"_s.arg(u"a").arg(u"b"), u"ba");
+    QCOMPARE( QString("%2²%1").arg("a").arg("b"), QString("ba") );
 #else
     QTest::ignoreMessage(QtWarningMsg, "QString::arg: Argument missing: %¹, foo");
     QCOMPARE(u"%¹"_s.arg(foo), u"%¹");
@@ -8426,7 +8771,6 @@ void tst_QString::removeIf()
     QString a;
 
     auto pred = [](const QChar &c) { return c.isLower(); };
-
     a.removeIf(pred);
     QVERIFY(a.isEmpty());
     QVERIFY(!a.isDetached());
@@ -8445,7 +8789,7 @@ void tst_QString::removeIf()
     QCOMPARE(a, u"ABCD");
     QCOMPARE(b, "aABbcCDd"_L1);
 
-    auto removeA = [](const QChar c) { return c == u'a' || c == u'A'; };
+    auto removeA = [](const char c) { return c == 'a' || c == 'A'; };
 
     a = "aBcAbCa"_L1; // Not shared
     QCOMPARE(a.removeIf(removeA), u"BcbC");
diff --git a/tests/auto/corelib/text/qstring/tst_qstring_wasm.cpp b/tests/auto/corelib/text/qstring/tst_qstring_wasm.cpp
new file mode 100644
index 00000000..0179fc26
--- /dev/null
+++ b/tests/auto/corelib/text/qstring/tst_qstring_wasm.cpp
@@ -0,0 +1,28 @@
+// Copyright (C) 2016 The Qt Company Ltd.
+// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only WITH Qt-GPL-exception-1.0
+
+#include <QtCore/QString>
+#include <QTest>
+
+#include <emscripten/val.h>
+
+void tst_QString_wasmTypes()
+{
+    // QString <-> emscripten::val
+    {
+        QString qtString("test string");
+        const emscripten::val jsString = qtString.toEcmaString();
+        QString qtStringCopy(qtString);
+        qtString = qtString.toUpper(); // modify
+        QCOMPARE(QString::fromEcmaString(jsString), qtStringCopy);
+    }
+    {
+        QString longString;
+        for (uint64_t i = 0; i < 1000; ++i)
+            longString += "Lorem ipsum FTW";
+        const emscripten::val jsString = longString.toEcmaString();
+        QString qtStringCopy(longString);
+        longString = longString.toUpper(); // modify
+        QCOMPARE(QString::fromEcmaString(jsString), qtStringCopy);
+    }
+}
diff --git a/tests/auto/corelib/text/qstringapisymmetry/tst_qstringapisymmetry.cpp b/tests/auto/corelib/text/qstringapisymmetry/tst_qstringapisymmetry.cpp
index 4362ef04..0d3797b1 100644
--- a/tests/auto/corelib/text/qstringapisymmetry/tst_qstringapisymmetry.cpp
+++ b/tests/auto/corelib/text/qstringapisymmetry/tst_qstringapisymmetry.cpp
@@ -1170,6 +1170,10 @@ void tst_QStringApiSymmetry::overload()
     // check the common overload sets defined above to be free of ambiguities
     // for arguments of type T
 
+    QT_WARNING_PUSH
+    // GCC complains about "t" and "ct"
+    QT_WARNING_DISABLE_GCC("-Wmaybe-uninitialized")
+
     using CT = const T;
 
     T t = {};
@@ -1218,6 +1222,7 @@ void tst_QStringApiSymmetry::overload()
             overload_sr_v(CT());
         }
     }
+    QT_WARNING_POP
 }
 
 void tst_QStringApiSymmetry::overload_special()
@@ -1482,8 +1487,9 @@ void tst_QStringApiSymmetry::localeAwareCompare_data()
         return false;
     };
 #else
-    // Otherwise, trust that setlocale() reconfigures QString::localeAwareCompare():
-    const auto canTest = [](const char *) { return true; };
+    const auto canTest = [](const char *wanted) {
+        return QLocale(wanted) == QLocale::c() || QLocale(wanted) == QLocale::system().collation();
+    };
 #endif
     // Update tailpiece's max-value for this if you add a new locale group
     int countGroups = 0;
diff --git a/tests/auto/corelib/text/qstringbuilder/qstringbuilder1/stringbuilder.cpp b/tests/auto/corelib/text/qstringbuilder/qstringbuilder1/stringbuilder.cpp
index ed9460b9..dc2aa9eb 100644
--- a/tests/auto/corelib/text/qstringbuilder/qstringbuilder1/stringbuilder.cpp
+++ b/tests/auto/corelib/text/qstringbuilder/qstringbuilder1/stringbuilder.cpp
@@ -77,6 +77,28 @@ void checkItWorksWithFreeSpaceAtBegin(const String &chunk, const Separator &sepa
     QCOMPARE(str, expected);
 }
 
+template <typename String>
+void checkNullVsEmpty(const String &empty, const char *failureReason = nullptr)
+{
+    String a;
+    String b;
+    QVERIFY(a.isNull());
+    QVERIFY(b.isNull());
+    String result = a P b;
+    QVERIFY(result.isNull());
+
+    String d = empty;
+    QVERIFY(d.isEmpty());
+    QVERIFY(!d.isNull());
+    result = a P d;
+    QVERIFY(result.isEmpty());
+    if (failureReason)
+        QEXPECT_FAIL("", failureReason, Continue);
+    QVERIFY(!result.isNull());
+
+    result = a P a P a;
+    QVERIFY(!result.isNull());
+}
 
 void runScenario()
 {
@@ -357,6 +379,10 @@ void runScenario()
         QCOMPARE(ba2, QByteArray(withZero + withZero + withZero));
     }
 
+    // null vs. empty
+    checkNullVsEmpty(QStringLiteral(""));
+    checkNullVsEmpty(QByteArrayLiteral(""), "QTBUG-114238: inconsistent isEmpty/isNull between QString and QByteArray concatenation");
+
     checkItWorksWithFreeSpaceAtBegin(QByteArray(UTF8_LITERAL), "1234");
     if (QTest::currentTestFailed())
         return;
diff --git a/tests/auto/corelib/text/qstringbuilder/qstringbuilder1/tst_qstringbuilder1.cpp b/tests/auto/corelib/text/qstringbuilder/qstringbuilder1/tst_qstringbuilder1.cpp
index 8b45e15d..3f850aaa 100644
--- a/tests/auto/corelib/text/qstringbuilder/qstringbuilder1/tst_qstringbuilder1.cpp
+++ b/tests/auto/corelib/text/qstringbuilder/qstringbuilder1/tst_qstringbuilder1.cpp
@@ -17,7 +17,11 @@
 
 #define LITERAL "some literal"
 
-void runScenario(); // Defined in stringbuilder.cpp #included below.
+namespace {
+#define P %
+#include "stringbuilder.cpp"
+#undef P
+} // namespace
 
 class tst_QStringBuilder1 : public QObject
 {
@@ -27,10 +31,6 @@ private slots:
     void scenario() { runScenario(); }
 };
 
-#define P %
-#include "stringbuilder.cpp"
-#undef P
-
 #include "tst_qstringbuilder1.moc"
 
 QTEST_APPLESS_MAIN(tst_QStringBuilder1)
diff --git a/tests/auto/corelib/text/qstringbuilder/qstringbuilder2/tst_qstringbuilder2.cpp b/tests/auto/corelib/text/qstringbuilder/qstringbuilder2/tst_qstringbuilder2.cpp
index 9a4de80c..f833c71c 100644
--- a/tests/auto/corelib/text/qstringbuilder/qstringbuilder2/tst_qstringbuilder2.cpp
+++ b/tests/auto/corelib/text/qstringbuilder/qstringbuilder2/tst_qstringbuilder2.cpp
@@ -18,7 +18,11 @@
 
 #define LITERAL "some literal"
 
-void runScenario(); // Defined in stringbuilder.cpp #included below.
+namespace {
+#define P +
+#include "../qstringbuilder1/stringbuilder.cpp"
+#undef P
+} // namespace
 
 class tst_QStringBuilder2 : public QObject
 {
@@ -28,10 +32,6 @@ private slots:
     void scenario() { runScenario(); }
 };
 
-#define P +
-#include "../qstringbuilder1/stringbuilder.cpp"
-#undef P
-
 #include "tst_qstringbuilder2.moc"
 
 QTEST_APPLESS_MAIN(tst_QStringBuilder2)
diff --git a/tests/auto/corelib/text/qstringbuilder/qstringbuilder3/tst_qstringbuilder3.cpp b/tests/auto/corelib/text/qstringbuilder/qstringbuilder3/tst_qstringbuilder3.cpp
index 062643e1..78724154 100644
--- a/tests/auto/corelib/text/qstringbuilder/qstringbuilder3/tst_qstringbuilder3.cpp
+++ b/tests/auto/corelib/text/qstringbuilder/qstringbuilder3/tst_qstringbuilder3.cpp
@@ -17,7 +17,11 @@
 
 #define LITERAL "some literal"
 
-void runScenario(); // Defined in stringbuilder.cpp #included below.
+namespace {
+#define P %
+#include "../qstringbuilder1/stringbuilder.cpp"
+#undef P
+} // namespace
 
 class tst_QStringBuilder3 : public QObject
 {
@@ -27,10 +31,6 @@ private slots:
     void scenario() { runScenario(); }
 };
 
-#define P %
-#include "../qstringbuilder1/stringbuilder.cpp"
-#undef P
-
 #include "tst_qstringbuilder3.moc"
 
 QTEST_APPLESS_MAIN(tst_QStringBuilder3)
diff --git a/tests/auto/corelib/text/qstringbuilder/qstringbuilder4/tst_qstringbuilder4.cpp b/tests/auto/corelib/text/qstringbuilder/qstringbuilder4/tst_qstringbuilder4.cpp
index 56006b7b..12b219cf 100644
--- a/tests/auto/corelib/text/qstringbuilder/qstringbuilder4/tst_qstringbuilder4.cpp
+++ b/tests/auto/corelib/text/qstringbuilder/qstringbuilder4/tst_qstringbuilder4.cpp
@@ -18,7 +18,11 @@
 
 #define LITERAL "some literal"
 
-void runScenario(); // Defined in stringbuilder.cpp #included below.
+namespace {
+#define P +
+#include "../qstringbuilder1/stringbuilder.cpp"
+#undef P
+} // namespace
 
 class tst_QStringBuilder4 : public QObject
 {
@@ -28,10 +32,6 @@ private slots:
     void scenario() { runScenario(); }
 };
 
-#define P +
-#include "../qstringbuilder1/stringbuilder.cpp"
-#undef P
-
 #include "tst_qstringbuilder4.moc"
 
 QTEST_APPLESS_MAIN(tst_QStringBuilder4)
diff --git a/tests/auto/corelib/text/qstringconverter/tst_qstringconverter.cpp b/tests/auto/corelib/text/qstringconverter/tst_qstringconverter.cpp
index a60478d5..253749ed 100644
--- a/tests/auto/corelib/text/qstringconverter/tst_qstringconverter.cpp
+++ b/tests/auto/corelib/text/qstringconverter/tst_qstringconverter.cpp
@@ -134,6 +134,8 @@ private slots:
 
     void convertL1U8();
 
+    void convertL1U16();
+
 #if QT_CONFIG(icu)
     void roundtripIcu_data();
     void roundtripIcu();
@@ -250,8 +252,8 @@ void tst_QStringConverter::invalidConverter()
 
         decoder.resetState();
         QVERIFY(!decoder.hasError());
-        QChar buffer[100];
-        QChar *position = decoder.appendToBuffer(buffer, "Even more");
+        char16_t buffer[100];
+        char16_t *position = decoder.appendToBuffer(buffer, "Even more");
         QCOMPARE(position, buffer);
         QVERIFY(decoder.hasError());
     }
@@ -353,6 +355,33 @@ void tst_QStringConverter::convertUtf8CharByChar()
     QCOMPARE(reencoded, ba);
 }
 
+void tst_QStringConverter::convertL1U16()
+{
+    const QLatin1StringView latin1("some plain latin1 text");
+    const QString qstr(latin1);
+
+    QStringDecoder decoder(QStringConverter::Latin1);
+    QVERIFY(decoder.isValid());
+    QString uniString = decoder(latin1);
+    QCOMPARE(uniString, qstr);
+    QCOMPARE(latin1, uniString.toLatin1());
+
+    // do it again (using .decode())
+    uniString = decoder.decode(latin1);
+    QCOMPARE(uniString, qstr);
+    QCOMPARE(latin1, uniString.toLatin1());
+
+    QStringEncoder encoder(QStringConverter::Latin1);
+    QByteArray reencoded = encoder(uniString);
+    QCOMPARE(reencoded, QByteArrayView(latin1));
+    QCOMPARE(reencoded, uniString.toLatin1());
+
+    // do it again (using .encode())
+    reencoded = encoder.encode(uniString);
+    QCOMPARE(reencoded, QByteArrayView(latin1));
+    QCOMPARE(reencoded, uniString.toLatin1());
+}
+
 void tst_QStringConverter::roundtrip_data()
 {
     QTest::addColumn<QStringView>("utf16");
@@ -2427,6 +2456,10 @@ void tst_QStringConverter::initTestCase()
 
 void tst_QStringConverter::threadSafety()
 {
+#if defined(Q_OS_WASM)
+    QSKIP("This test misbehaves on WASM. Investigation needed (QTBUG-110067)");
+#endif
+
     QThreadPool::globalInstance()->setMaxThreadCount(12);
 
     QList<QString> res;
diff --git a/tests/auto/corelib/text/qtextboundaryfinder/tst_qtextboundaryfinder.cpp b/tests/auto/corelib/text/qtextboundaryfinder/tst_qtextboundaryfinder.cpp
index ea7d2f69..d196d4e1 100644
--- a/tests/auto/corelib/text/qtextboundaryfinder/tst_qtextboundaryfinder.cpp
+++ b/tests/auto/corelib/text/qtextboundaryfinder/tst_qtextboundaryfinder.cpp
@@ -42,7 +42,6 @@ private slots:
     void assignmentOperator();
     void isAtSoftHyphen_data();
     void isAtSoftHyphen();
-    void thaiLineBreak();
 };
 
 
@@ -842,95 +841,5 @@ void tst_QTextBoundaryFinder::isAtSoftHyphen()
     doTestData(testString, expectedSoftHyphenPositions, QTextBoundaryFinder::Line, QTextBoundaryFinder::SoftHyphen);
 }
 
-#if QT_CONFIG(library)
-#include <qlibrary.h>
-#endif
-
-#define LIBTHAI_MAJOR   0
-typedef int (*th_brk_def) (const unsigned char*, int*, size_t);
-static th_brk_def th_brk = 0;
-
-static bool init_libthai()
-{
-#if QT_CONFIG(library)
-    static bool triedResolve = false;
-    if (!triedResolve) {
-        th_brk = (th_brk_def) QLibrary::resolve("thai", (int)LIBTHAI_MAJOR, "th_brk");
-        triedResolve = true;
-    }
-#endif
-    return th_brk != 0;
-}
-
-void tst_QTextBoundaryFinder::thaiLineBreak()
-{
-    if (!init_libthai())
-        QSKIP("This test requires libThai-0.1.1x to be installed.");
-#if 0
-    QString text = QString::fromUtf8("สวัสดีครับ นี่เป็นการงทดสอบตัวเอ");
-
-    QTextBoundaryFinder finder(QTextBoundaryFinder::Line, text);
-    finder.setPosition(0);
-    QVERIFY(finder.isAtBoundary());
-    finder.setPosition(1);
-    QVERIFY(!finder.isAtBoundary());
-    finder.setPosition(2);
-    QVERIFY(!finder.isAtBoundary());
-    finder.setPosition(3);
-    QVERIFY(!finder.isAtBoundary());
-    finder.setPosition(4);
-    QVERIFY(!finder.isAtBoundary());
-    finder.setPosition(5);
-    QVERIFY(!finder.isAtBoundary());
-    finder.setPosition(6);
-    QVERIFY(finder.isAtBoundary());
-    finder.setPosition(7);
-    QVERIFY(finder.isAtBoundary());
-    finder.setPosition(8);
-    QVERIFY(!finder.isAtBoundary());
-    finder.setPosition(9);
-    QVERIFY(!finder.isAtBoundary());
-    finder.setPosition(10);
-    QVERIFY(!finder.isAtBoundary());
-    finder.setPosition(11);
-    QVERIFY(finder.isAtBoundary());
-    finder.setPosition(12);
-    QVERIFY(!finder.isAtBoundary());
-    finder.setPosition(13);
-    QVERIFY(!finder.isAtBoundary());
-    finder.setPosition(14);
-    QVERIFY(finder.isAtBoundary());
-    finder.setPosition(15);
-    QVERIFY(!finder.isAtBoundary());
-    finder.setPosition(16);
-    QVERIFY(!finder.isAtBoundary());
-    finder.setPosition(17);
-    QVERIFY(!finder.isAtBoundary());
-    finder.setPosition(18);
-    QVERIFY(finder.isAtBoundary());
-    finder.setPosition(19);
-    QVERIFY(!finder.isAtBoundary());
-    finder.setPosition(20);
-    QVERIFY(finder.isAtBoundary());
-    finder.setPosition(21);
-    QVERIFY(finder.isAtBoundary());
-    finder.setPosition(22);
-    QVERIFY(!finder.isAtBoundary());
-    finder.setPosition(23);
-    QVERIFY(!finder.isAtBoundary());
-    finder.setPosition(24);
-    QVERIFY(!finder.isAtBoundary());
-    finder.setPosition(25);
-    QVERIFY(finder.isAtBoundary());
-    finder.setPosition(26);
-    QVERIFY(finder.isAtBoundary());
-    for (int i = 27; i < 32; ++i) {
-        finder.setPosition(i);
-        QVERIFY(!finder.isAtBoundary());
-    }
-#endif
-}
-
-
 QTEST_MAIN(tst_QTextBoundaryFinder)
 #include "tst_qtextboundaryfinder.moc"
diff --git a/tests/auto/corelib/thread/CMakeLists.txt b/tests/auto/corelib/thread/CMakeLists.txt
index 1b07b98c..c1c00fe8 100644
--- a/tests/auto/corelib/thread/CMakeLists.txt
+++ b/tests/auto/corelib/thread/CMakeLists.txt
@@ -15,12 +15,10 @@ if(QT_FEATURE_thread)
     add_subdirectory(qreadlocker)
     add_subdirectory(qreadwritelock)
     add_subdirectory(qsemaphore)
-    # special case begin
     # QTBUG-85364
     if(NOT CMAKE_CROSSCOMPILING)
         add_subdirectory(qthread)
     endif()
-    # special case end
     add_subdirectory(qthreadonce)
     add_subdirectory(qthreadpool)
     add_subdirectory(qthreadstorage)
diff --git a/tests/auto/corelib/thread/qatomicinteger/tst_qatomicinteger.cpp b/tests/auto/corelib/thread/qatomicinteger/tst_qatomicinteger.cpp
index 9d7a71e7..5eefb76f 100644
--- a/tests/auto/corelib/thread/qatomicinteger/tst_qatomicinteger.cpp
+++ b/tests/auto/corelib/thread/qatomicinteger/tst_qatomicinteger.cpp
@@ -1,30 +1,6 @@
 // Copyright (C) 2016 Intel Corporation.
 // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only WITH Qt-GPL-exception-1.0
 
-#ifdef QT_ATOMIC_FORCE_CXX11
-// We need to check if this compiler has C++11 atomics and constexpr support.
-// We can't rely on qcompilerdetection.h because it forces all of qglobal.h to
-// be included, which causes qbasicatomic.h to be included too.
-// Incomplete, but ok
-#  if defined(__INTEL_COMPILER) && __INTEL_COMPILER >= 1500 && (__cplusplus >= 201103L || defined(__INTEL_CXX11_MODE__))
-#  elif defined(__clang__) && (__cplusplus >= 201103L || defined(__GXX_EXPERIMENTAL_CXX0X__))
-#    if !__has_feature(cxx_constexpr) || !__has_feature(cxx_atomic) || !__has_include(<atomic>)
-#      undef QT_ATOMIC_FORCE_CXX11
-#    endif
-#  elif defined(__GNUC__) && (__GNUC__ * 100 + __GNUC_MINOR__) >= 407 && (__cplusplus >= 201103L || defined(__GXX_EXPERIMENTAL_CXX0X__))
-#  elif defined(_MSC_VER)
-    // We need MSVC 2015 because of: atomics (2012), constexpr (2015), and unrestricted unions (2015).
-    // Support for constexpr is not working completely on MSVC 2015 but it's enough for the test.
-#  else
-#    undef QT_ATOMIC_FORCE_CXX11
-#  endif
-
-#  ifndef QT_ATOMIC_FORCE_CXX11
-#    undef QATOMIC_TEST_TYPE
-#    define QATOMIC_TEST_TYPE unsupported
-#  endif
-#endif
-
 #include <QTest>
 #include <QAtomicInt>
 
diff --git a/tests/auto/corelib/thread/qfuture/tst_qfuture.cpp b/tests/auto/corelib/thread/qfuture/tst_qfuture.cpp
index 33f92036..fa018861 100644
--- a/tests/auto/corelib/thread/qfuture/tst_qfuture.cpp
+++ b/tests/auto/corelib/thread/qfuture/tst_qfuture.cpp
@@ -11,6 +11,7 @@
 #include <QVarLengthArray>
 #include <QSet>
 #include <QList>
+#include <private/qobject_p.h>
 
 #include <QTest>
 #include <qfuture.h>
@@ -22,14 +23,20 @@
 #include <QtConcurrent/qtconcurrentrun.h>
 #include <private/qfutureinterface_p.h>
 
+#include <forward_list>
+#include <list>
 #include <vector>
 #include <memory>
+#include <set>
 
 // COM interface macro.
 #if defined(Q_OS_WIN) && defined(interface)
 #  undef interface
 #endif
 
+using namespace std::chrono_literals;
+static constexpr auto DefaultWaitTime = 2s;
+
 using namespace Qt::StringLiterals;
 
 class SenderObject : public QObject
@@ -133,6 +140,18 @@ private:
     std::function<void ()> m_fn;
 };
 
+// Emulates QWidget behavior by deleting its children early in the destructor
+// instead of leaving it to ~QObject()
+class FakeQWidget : public QObject
+{
+    Q_OBJECT
+public:
+    ~FakeQWidget() override {
+        auto *d = QObjectPrivate::get(this);
+        d->deleteChildren();
+    }
+};
+
 using UniquePtr = std::unique_ptr<int>;
 
 class tst_QFuture: public QObject
@@ -203,6 +222,7 @@ private slots:
     void rejectPendingResultOverwrite();
 
     void createReadyFutures();
+    void continuationsAfterReadyFutures();
 
     void getFutureInterface();
     void convertQMetaType();
@@ -1957,7 +1977,7 @@ void tst_QFuture::nonGlobalThreadPool()
         void run() override
         {
             const int ms = 100 + (QRandomGenerator::global()->bounded(100) - 100/2);
-            QThread::msleep(ulong(ms));
+            QThread::sleep(std::chrono::milliseconds{ms});
             reportResult(Answer);
             reportFinished();
         }
@@ -3046,7 +3066,7 @@ void tst_QFuture::cancelContinuations()
 
     // The chain is cancelled before the execution of continuations
     {
-        auto f = QtFuture::makeReadyFuture(42);
+        auto f = QtFuture::makeReadyValueFuture(42);
         f.cancel();
 
         int checkpoint = 0;
@@ -3257,6 +3277,40 @@ void tst_QFuture::continuationsWithContext()
         QCOMPARE(future.result(), 2);
     }
 
+    // Cancellation when the context object is destroyed
+    {
+        // Use something like QWidget which deletes its children early, i.e.
+        // before ~QObject() runs. This behavior can lead to side-effects
+        // like QPointers to the parent not being set to nullptr during child
+        // object destruction.
+        QPointer shortLivedContext = new FakeQWidget();
+        shortLivedContext->moveToThread(&thread);
+
+        QPromise<int> promise;
+        auto future = promise.future()
+                              .then(shortLivedContext, [&](int val) {
+                                  if (QThread::currentThread() != &thread)
+                                      return 0;
+                                  return val + 1000;
+                              })
+                              .onCanceled([&, ptr=QPointer(shortLivedContext)] {
+                                  if (QThread::currentThread() != &thread)
+                                      return 0;
+                                  if (ptr)
+                                      return 1;
+                                  return 2;
+                              });
+        promise.start();
+
+        QMetaObject::invokeMethod(shortLivedContext, [&]() {
+            delete shortLivedContext;
+        }, Qt::BlockingQueuedConnection);
+
+        promise.finish();
+
+        QCOMPARE(future.result(), 2);
+    }
+
 #ifndef QT_NO_EXCEPTIONS
     // .onFaled()
     {
@@ -3295,7 +3349,8 @@ void tst_QFuture::continuationsWithMoveOnlyLambda()
     // .then()
     {
         std::unique_ptr<int> uniquePtr(new int(42));
-        auto future = QtFuture::makeReadyFuture().then([p = std::move(uniquePtr)] { return *p; });
+        auto future = QtFuture::makeReadyVoidFuture()
+                .then([p = std::move(uniquePtr)] { return *p; });
         QCOMPARE(future.result(), 42);
     }
     // .then() with thread pool
@@ -3303,8 +3358,8 @@ void tst_QFuture::continuationsWithMoveOnlyLambda()
         QThreadPool pool;
 
         std::unique_ptr<int> uniquePtr(new int(42));
-        auto future =
-                QtFuture::makeReadyFuture().then(&pool, [p = std::move(uniquePtr)] { return *p; });
+        auto future = QtFuture::makeReadyVoidFuture()
+                .then(&pool, [p = std::move(uniquePtr)] { return *p; });
         QCOMPARE(future.result(), 42);
     }
     // .then() with context
@@ -3312,8 +3367,8 @@ void tst_QFuture::continuationsWithMoveOnlyLambda()
         QObject object;
 
         std::unique_ptr<int> uniquePtr(new int(42));
-        auto future = QtFuture::makeReadyFuture().then(&object,
-                                                       [p = std::move(uniquePtr)] { return *p; });
+        auto future = QtFuture::makeReadyVoidFuture()
+                .then(&object, [p = std::move(uniquePtr)] { return *p; });
         QCOMPARE(future.result(), 42);
     }
 
@@ -3464,7 +3519,7 @@ void tst_QFuture::runAndTake()
     auto rabbit = [](){
         // Let's wait a bit to give the test below some time
         // to sync up with us with its watcher.
-        QThread::currentThread()->msleep(100);
+        QThread::currentThread()->sleep(std::chrono::milliseconds{100});
         return UniquePtr(new int(10));
     };
 
@@ -3477,7 +3532,7 @@ void tst_QFuture::runAndTake()
     auto gotcha = QtConcurrent::run(rabbit);
     watcha.setFuture(gotcha);
 
-    loop.enterLoopMSecs(500);
+    loop.enterLoop(500ms);
     if (loop.timeout())
         QSKIP("Failed to run the task, nothing to test");
 
@@ -3548,7 +3603,7 @@ void tst_QFuture::resultsReadyAt()
 
     // Run event loop, QCoreApplication::postEvent is in use
     // in QFutureInterface:
-    eventProcessor.enterLoopMSecs(2000);
+    eventProcessor.enterLoop(DefaultWaitTime);
     QVERIFY(!eventProcessor.timeout());
     if (QTest::currentTestFailed()) // Failed in our lambda observing 'ready at'
         return;
@@ -3921,7 +3976,7 @@ void tst_QFuture::rejectResultOverwrite()
     });
     // Run event loop, QCoreApplication::postEvent is in use
     // in QFutureInterface:
-    eventProcessor.enterLoopMSecs(2000);
+    eventProcessor.enterLoop(DefaultWaitTime);
     QVERIFY(!eventProcessor.timeout());
     QCOMPARE(resultCounter.size(), 1);
     f.resume();
@@ -3960,7 +4015,7 @@ void tst_QFuture::rejectResultOverwrite()
     QTimer::singleShot(50, [&f]() {
         f.suspend(); // should exit the loop
     });
-    eventProcessor.enterLoopMSecs(2000);
+    eventProcessor.enterLoop(DefaultWaitTime);
     QVERIFY(!eventProcessor.timeout());
     QCOMPARE(resultCounter.size(), 1);
     f.resume();
@@ -3999,7 +4054,7 @@ void tst_QFuture::rejectPendingResultOverwrite()
         });
         // Run event loop, QCoreApplication::postEvent is in use
         // in QFutureInterface:
-        eventProcessor.enterLoopMSecs(2000);
+        eventProcessor.enterLoop(DefaultWaitTime);
         QVERIFY(!eventProcessor.timeout());
         QCOMPARE(resultCounter.size(), 1);
         f.resume();
@@ -4043,7 +4098,7 @@ void tst_QFuture::rejectPendingResultOverwrite()
         QTimer::singleShot(50, [&f]() {
             f.suspend(); // should exit the loop
         });
-        eventProcessor.enterLoopMSecs(2000);
+        eventProcessor.enterLoop(DefaultWaitTime);
         QVERIFY(!eventProcessor.timeout());
         QCOMPARE(resultCounter.size(), 1);
         f.resume();
@@ -4058,6 +4113,9 @@ void tst_QFuture::rejectPendingResultOverwrite()
 
 void tst_QFuture::createReadyFutures()
 {
+#if QT_DEPRECATED_SINCE(6, 10)
+QT_WARNING_PUSH
+QT_WARNING_DISABLE_DEPRECATED
     // using const T &
     {
         const int val = 42;
@@ -4093,6 +4151,30 @@ void tst_QFuture::createReadyFutures()
         QCOMPARE(f.resultCount(), 3);
         QCOMPARE(f.results(), values);
     }
+QT_WARNING_POP
+#endif // QT_DEPRECATED_SINCE(6, 10)
+
+    // test makeReadyValueFuture<T>()
+    {
+        const int val = 42;
+        auto f = QtFuture::makeReadyValueFuture(val);
+        QCOMPARE_EQ(f.result(), val);
+
+        int otherVal = 42;
+        f = QtFuture::makeReadyValueFuture(otherVal);
+        QCOMPARE_EQ(f.result(), otherVal);
+    }
+    {
+        auto f = QtFuture::makeReadyValueFuture(std::make_unique<int>(42));
+        QCOMPARE(*f.takeResult(), 42);
+    }
+    // test makeReadyVoidFuture()
+    {
+        auto f = QtFuture::makeReadyVoidFuture();
+        QVERIFY(f.isStarted());
+        QVERIFY(!f.isRunning());
+        QVERIFY(f.isFinished());
+    }
 
 #ifndef QT_NO_EXCEPTIONS
     // using QException
@@ -4121,12 +4203,205 @@ void tst_QFuture::createReadyFutures()
         QVERIFY(caught);
     }
 #endif
+
+    // testing makeReadyRangeFuture with various containers
+    {
+        const QList<int> expectedResult{1, 2, 3};
+
+        const QList<int> list{1, 2, 3};
+        auto f = QtFuture::makeReadyRangeFuture(list);
+        QCOMPARE_EQ(f.resultCount(), 3);
+        QCOMPARE_EQ(f.results(), expectedResult);
+
+        QVarLengthArray<int> varArray{1, 2, 3};
+        f = QtFuture::makeReadyRangeFuture(varArray);
+        QCOMPARE_EQ(f.resultCount(), 3);
+        QCOMPARE_EQ(f.results(), expectedResult);
+
+        std::vector<int> vec{1, 2, 3};
+        f = QtFuture::makeReadyRangeFuture(std::move(vec));
+        QCOMPARE_EQ(f.resultCount(), 3);
+        QCOMPARE_EQ(f.results(), expectedResult);
+
+        f = QtFuture::makeReadyRangeFuture(std::array<int, 3>{1, 2, 3});
+        QCOMPARE_EQ(f.resultCount(), 3);
+        QCOMPARE_EQ(f.results(), expectedResult);
+
+        f = QtFuture::makeReadyRangeFuture(std::list<int>{1, 2, 3});
+        QCOMPARE_EQ(f.resultCount(), 3);
+        QCOMPARE_EQ(f.results(), expectedResult);
+
+        std::forward_list<int> fwdlist{1, 2, 3};
+        f = QtFuture::makeReadyRangeFuture(fwdlist);
+        QCOMPARE_EQ(f.resultCount(), 3);
+        QCOMPARE_EQ(f.results(), expectedResult);
+
+        const QSet<int> qset{1, 2, 3};
+        f = QtFuture::makeReadyRangeFuture(qset);
+        QCOMPARE_EQ(f.resultCount(), 3);
+        auto result = f.results();
+        std::sort(result.begin(), result.end());
+        QCOMPARE_EQ(result, expectedResult);
+
+        const QMap<QString, int> qmap{
+            {"one", 1},
+            {"two", 2},
+            {"three", 3}
+        };
+        f = QtFuture::makeReadyRangeFuture(qmap);
+        QCOMPARE_EQ(f.resultCount(), 3);
+        result = f.results();
+        std::sort(result.begin(), result.end());
+        QCOMPARE_EQ(result, expectedResult);
+
+        std::set<int> stdset{1, 2, 3};
+        f = QtFuture::makeReadyRangeFuture(stdset);
+        QCOMPARE_EQ(f.resultCount(), 3);
+        result = f.results();
+        std::sort(result.begin(), result.end());
+        QCOMPARE_EQ(result, expectedResult);
+
+        // testing ValueType[N] overload
+        const int c_array[] = {1, 2, 3};
+        f = QtFuture::makeReadyRangeFuture(c_array);
+        QCOMPARE_EQ(f.resultCount(), 3);
+        QCOMPARE_EQ(f.results(), expectedResult);
+
+        f = QtFuture::makeReadyRangeFuture({1, 2, 3});
+        QCOMPARE_EQ(f.resultCount(), 3);
+        QCOMPARE_EQ(f.results(), expectedResult);
+    }
+    // testing makeReadyRangeFuture with a more complex underlying type
+    {
+        QObject obj1;
+        QObject obj2;
+        QObject obj3;
+
+        const QList<QObject*> expectedResult{&obj1, &obj2, &obj3};
+
+        const QList<QObject*> list{&obj1, &obj2, &obj3};
+        auto f = QtFuture::makeReadyRangeFuture(list);
+        QCOMPARE_EQ(f.resultCount(), 3);
+        QCOMPARE_EQ(f.results(), expectedResult);
+
+        std::list<QObject*> stdlist{&obj1, &obj2, &obj3};
+        f = QtFuture::makeReadyRangeFuture(std::move(stdlist));
+        QCOMPARE_EQ(f.resultCount(), 3);
+        QCOMPARE_EQ(f.results(), expectedResult);
+
+        QObject* const c_array[] = {&obj1, &obj2, &obj3};
+        f = QtFuture::makeReadyRangeFuture(c_array);
+        QCOMPARE_EQ(f.resultCount(), 3);
+        QCOMPARE_EQ(f.results(), expectedResult);
+    }
+}
+
+void tst_QFuture::continuationsAfterReadyFutures()
+{
+    // continuations without a context
+    {
+        QFuture<int> f = QtFuture::makeReadyValueFuture(42)
+                .then([](int val) {
+                    return val + 10;
+                })
+                .onCanceled([]() {
+                    return -1;
+                });
+        QCOMPARE(f.result(), 52);
+    }
+    {
+        auto rangeF = QtFuture::makeReadyRangeFuture({1, 2, 3});
+        QFuture<int> f = rangeF
+                .then([vals = rangeF.results()](auto) {
+                    return vals.last();
+                })
+                .onCanceled([]() {
+                    return -1;
+                });
+        QCOMPARE(f.result(), 3);
+    }
+    {
+        QFuture<int> f = QtFuture::makeReadyVoidFuture()
+                .then([]() {
+                    return 1;
+                })
+                .onCanceled([]() {
+                    return -1;
+                });
+        QCOMPARE(f.result(), 1);
+    }
+#ifndef QT_NO_EXCEPTIONS
+    {
+        QException e;
+        QFuture<int> f = QtFuture::makeExceptionalFuture<int>(e)
+                .then([](int) {
+                    return 1;
+                })
+                .onCanceled([]() {
+                    return -1;
+                })
+                .onFailed([](const QException &) {
+                    return -2;
+                });
+        QCOMPARE(f.result(), -2);
+    }
+#endif
+
+    // continuations with a context
+    QObject context;
+    {
+        QFuture<int> f = QtFuture::makeReadyValueFuture(42)
+                .then(&context, [](int val) {
+                    return val + 10;
+                })
+                .onCanceled([]() {
+                    return -1;
+                });
+        QCOMPARE(f.result(), 52);
+    }
+    {
+        auto rangeF = QtFuture::makeReadyRangeFuture({1, 2, 3});
+        QFuture<int> f = rangeF
+                .then(&context, [vals = rangeF.results()](auto) {
+                    return vals.last();
+                })
+                .onCanceled([]() {
+                    return -1;
+                });
+        QCOMPARE(f.result(), 3);
+    }
+    {
+        QFuture<int> f = QtFuture::makeReadyVoidFuture()
+                .then(&context, []() {
+                    return 1;
+                })
+                .onCanceled([]() {
+                    return -1;
+                });
+        QCOMPARE(f.result(), 1);
+    }
+#ifndef QT_NO_EXCEPTIONS
+    {
+        QException e;
+        QFuture<int> f = QtFuture::makeExceptionalFuture<int>(e)
+                .then(&context, [](int) {
+                    return 1;
+                })
+                .onCanceled([]() {
+                    return -1;
+                })
+                .onFailed([](const QException &) {
+                    return -2;
+                });
+        QCOMPARE(f.result(), -2);
+    }
+#endif
 }
 
 void tst_QFuture::getFutureInterface()
 {
     const int val = 42;
-    QFuture<int> f = QtFuture::makeReadyFuture(val);
+    QFuture<int> f = QtFuture::makeReadyValueFuture(val);
 
     auto interface = QFutureInterfaceBase::get(f);
     QCOMPARE(interface.resultCount(), 1);
@@ -4140,7 +4415,7 @@ void tst_QFuture::convertQMetaType()
     QVERIFY(QMetaType::canConvert(intType, voidType));
 
     const int val = 42;
-    QFuture<int> f = QtFuture::makeReadyFuture(val);
+    QFuture<int> f = QtFuture::makeReadyValueFuture(val);
     auto variant = QVariant::fromValue(f);
     QVERIFY(variant.convert(voidType));
 
@@ -4737,6 +5012,40 @@ void tst_QFuture::continuationsDontLeak()
         QVERIFY(continuationIsRun);
     }
     QCOMPARE(InstanceCounter::count, 0);
+
+    {
+        // QTBUG-116731: Must pass with ASan enabled
+        bool continuationIsRun = false;
+        auto f = QtFuture::makeReadyValueFuture(42);
+        QtFuture::whenAll(f).then([&](auto) { continuationIsRun = true; });
+        QVERIFY(continuationIsRun);
+    }
+
+    {
+        // QTBUG-116731: Must pass with ASan enabled
+        bool continuationIsRun = false;
+        auto f = QtFuture::makeReadyValueFuture(42);
+        QList fs{f};
+        QtFuture::whenAll(fs.begin(), fs.end()).then([&](auto) { continuationIsRun = true; });
+        QVERIFY(continuationIsRun);
+    }
+
+    {
+        // QTBUG-116731: Must pass with ASan enabled
+        bool continuationIsRun = false;
+        auto f = QtFuture::makeReadyValueFuture(42);
+        QtFuture::whenAny(f).then([&](auto) { continuationIsRun = true; });
+        QVERIFY(continuationIsRun);
+    }
+
+    {
+        // QTBUG-116731: Must pass with ASan enabled
+        bool continuationIsRun = false;
+        auto f = QtFuture::makeReadyValueFuture(42);
+        QList fs{f};
+        QtFuture::whenAny(fs.begin(), fs.end()).then([&](auto) { continuationIsRun = true; });
+        QVERIFY(continuationIsRun);
+    }
 }
 
 // This test checks that we do not get use-after-free
diff --git a/tests/auto/corelib/thread/qfuturesynchronizer/tst_qfuturesynchronizer.cpp b/tests/auto/corelib/thread/qfuturesynchronizer/tst_qfuturesynchronizer.cpp
index ebf94f7a..0602afc9 100644
--- a/tests/auto/corelib/thread/qfuturesynchronizer/tst_qfuturesynchronizer.cpp
+++ b/tests/auto/corelib/thread/qfuturesynchronizer/tst_qfuturesynchronizer.cpp
@@ -39,7 +39,7 @@ void tst_QFutureSynchronizer::setFutureAliasingExistingMember()
     //
     // GIVEN: a QFutureSynchronizer with one QFuture:
     //
-    QFutureSynchronizer synchronizer(QtFuture::makeReadyFuture(42));
+    QFutureSynchronizer synchronizer(QtFuture::makeReadyValueFuture(42));
 
     //
     // WHEN: calling setFuture() with an alias of the QFuture already in `synchronizer`:
diff --git a/tests/auto/corelib/thread/qfuturewatcher/tst_qfuturewatcher.cpp b/tests/auto/corelib/thread/qfuturewatcher/tst_qfuturewatcher.cpp
index 645e2260..62a9ab40 100644
--- a/tests/auto/corelib/thread/qfuturewatcher/tst_qfuturewatcher.cpp
+++ b/tests/auto/corelib/thread/qfuturewatcher/tst_qfuturewatcher.cpp
@@ -9,6 +9,7 @@
 #include <private/qfutureinterface_p.h>
 
 using namespace QtConcurrent;
+using namespace std::chrono_literals;
 
 #include <QTest>
 
@@ -900,13 +901,13 @@ QT_WARNING_POP
     QFuture<int> future = QtConcurrent::mapped(&pool, values, [&](int value) {
         ++count;
         // Sleep, to make sure not all threads will start at once.
-        QThread::msleep(50);
+        QThread::sleep(50ms);
         return value;
     });
     watcher.setFuture(future);
 
     // Allow some threads to start before suspending.
-    QThread::msleep(200);
+    QThread::sleep(200ms);
 
     watcher.suspend();
     watcher.suspend();
@@ -921,7 +922,7 @@ QT_WARNING_POP
     QCOMPARE(resultReadyAfterPaused, count);
 
     // Make sure no more results are reported before resuming.
-    QThread::msleep(200);
+    QThread::sleep(200ms);
     QCOMPARE(resultReadyAfterPaused, resultReadySpy.size());
     resultReadySpy.clear();
 
@@ -1139,7 +1140,7 @@ public:
 
 void tst_QFutureWatcher::warnRace()
 {
-#ifndef Q_OS_MAC //I don't know why it is not working on mac
+#ifndef Q_OS_DARWIN // I don't know why it is not working on mac
 #ifndef QT_NO_DEBUG
     QTest::ignoreMessage(QtWarningMsg, "QFutureWatcher::connect: connecting after calling setFuture() is likely to produce race");
 #endif
diff --git a/tests/auto/corelib/thread/qmutex/tst_qmutex.cpp b/tests/auto/corelib/thread/qmutex/tst_qmutex.cpp
index e4f98608..d2c0a38f 100644
--- a/tests/auto/corelib/thread/qmutex/tst_qmutex.cpp
+++ b/tests/auto/corelib/thread/qmutex/tst_qmutex.cpp
@@ -14,6 +14,8 @@
 #include <qwaitcondition.h>
 #include <private/qvolatile_p.h>
 
+using namespace std::chrono_literals;
+
 class tst_QMutex : public QObject
 {
     Q_OBJECT
@@ -27,8 +29,6 @@ public:
     Q_ENUM(TimeUnit)
 
 private slots:
-    void convertToMilliseconds_data();
-    void convertToMilliseconds();
     void tryLock_non_recursive();
     void try_lock_for_non_recursive();
     void try_lock_until_non_recursive();
@@ -69,104 +69,6 @@ enum {
 
 static constexpr std::chrono::milliseconds waitTimeAsDuration(waitTime);
 
-void tst_QMutex::convertToMilliseconds_data()
-{
-    QTest::addColumn<TimeUnit>("unit");
-    QTest::addColumn<double>("doubleValue");
-    QTest::addColumn<qint64>("intValue");
-    QTest::addColumn<qint64>("expected");
-
-    auto add = [](TimeUnit unit, double d, long long i, qint64 expected) {
-        const QScopedArrayPointer<char> enumName(QTest::toString(unit));
-        QTest::addRow("%s:%f:%lld", enumName.data(), d, i)
-            << unit << d << qint64(i) << expected;
-    };
-
-    auto forAllUnitsAdd = [=](double d, long long i, qint64 expected) {
-        for (auto unit : {TimeUnit::Nanoseconds, TimeUnit::Microseconds, TimeUnit::Milliseconds, TimeUnit::Seconds})
-            add(unit, d, i, expected);
-    };
-
-    forAllUnitsAdd(-0.5, -1, 0);     // all negative values result in 0
-
-    forAllUnitsAdd(0, 0, 0);
-
-    add(TimeUnit::Nanoseconds,                 1,               1, 1);
-    add(TimeUnit::Nanoseconds, 1000 * 1000,       1000 * 1000,     1);
-    add(TimeUnit::Nanoseconds, 1000 * 1000 + 0.5, 1000 * 1000 + 1, 2);
-
-    add(TimeUnit::Microseconds,          1,        1, 1);
-    add(TimeUnit::Microseconds, 1000,       1000,     1);
-    add(TimeUnit::Microseconds, 1000 + 0.5, 1000 + 1, 2);
-
-    add(TimeUnit::Milliseconds, 1,   1, 1);
-    add(TimeUnit::Milliseconds, 1.5, 2, 2);
-
-    add(TimeUnit::Seconds, 0.9991, 1, 1000);
-
-    //
-    // overflowing int results in INT_MAX (equivalent to a spurious wakeup after ~24 days); check it:
-    //
-
-    // spot on:
-    add(TimeUnit::Nanoseconds,  INT_MAX * 1000. * 1000, INT_MAX * Q_INT64_C(1000) * 1000, INT_MAX);
-    add(TimeUnit::Microseconds, INT_MAX * 1000.,        INT_MAX * Q_INT64_C(1000),        INT_MAX);
-    add(TimeUnit::Milliseconds, INT_MAX,                INT_MAX,                          INT_MAX);
-
-    // minimally above:
-    add(TimeUnit::Nanoseconds,  INT_MAX * 1000. * 1000 + 1, INT_MAX * Q_INT64_C(1000) * 1000 + 1, INT_MAX);
-    add(TimeUnit::Microseconds, INT_MAX * 1000.        + 1, INT_MAX * Q_INT64_C(1000)        + 1, INT_MAX);
-    add(TimeUnit::Milliseconds, INT_MAX               + 1., INT_MAX               + Q_INT64_C(1), INT_MAX);
-    add(TimeUnit::Seconds,      INT_MAX / 1000.        + 1, INT_MAX / 1000                   + 1, INT_MAX);
-
-    // minimally below:
-    add(TimeUnit::Nanoseconds,  INT_MAX * 1000. * 1000 - 1, INT_MAX * Q_INT64_C(1000) * 1000 - 1, INT_MAX);
-    add(TimeUnit::Microseconds, INT_MAX * 1000.        - 1, INT_MAX * Q_INT64_C(1000)        - 1, INT_MAX);
-    add(TimeUnit::Milliseconds, INT_MAX              - 0.1, INT_MAX                             , INT_MAX);
-
-}
-
-void tst_QMutex::convertToMilliseconds()
-{
-    QFETCH(TimeUnit, unit);
-    QFETCH(double, doubleValue);
-    QFETCH(qint64, intValue);
-    QFETCH(qint64, expected);
-
-    constexpr qint64 maxShort = std::numeric_limits<short>::max();
-    constexpr qint64 maxInt = std::numeric_limits<int>::max();
-    constexpr qint64 maxUInt = std::numeric_limits<uint>::max();
-
-    switch (unit) {
-#define CASE(Unit, Period) \
-    case TimeUnit::Unit: \
-        DO(double,  Period, doubleValue); \
-        if (intValue < maxShort) \
-            DO(short,   Period, short(intValue)); \
-        if (intValue < maxInt) \
-            DO(int,     Period, int(intValue)); \
-        DO(qint64,  Period, intValue); \
-        if (intValue >= 0) { \
-            if (intValue < maxUInt) \
-                DO(uint,    Period, uint(intValue)); \
-            DO(quint64, Period, quint64(intValue)); \
-        } \
-        break
-#define DO(Rep, Period, val) \
-    do { \
-        const std::chrono::duration<Rep, Period> wait((val)); \
-        QCOMPARE(QtPrivate::convertToMilliseconds(wait), expected); \
-    } while (0)
-
-    CASE(Nanoseconds,  std::nano);
-    CASE(Microseconds, std::micro);
-    CASE(Milliseconds, std::milli);
-    CASE(Seconds,      std::ratio<1>);
-#undef DO
-#undef CASE
-    }
-}
-
 void tst_QMutex::tryLock_non_recursive()
 {
     class Thread : public QThread
@@ -283,7 +185,7 @@ void tst_QMutex::tryLock_non_recursive()
     testsTurn.acquire();
     normalMutex.lock();
     threadsTurn.release();
-    QThread::msleep(100);
+    QThread::sleep(100ms);
     normalMutex.unlock();
 
     // wait for thread to finish
@@ -408,7 +310,7 @@ void tst_QMutex::try_lock_for_non_recursive()
     testsTurn.acquire();
     normalMutex.lock();
     threadsTurn.release();
-    QThread::msleep(100);
+    QThread::sleep(100ms);
     normalMutex.unlock();
 
     // wait for thread to finish
@@ -533,7 +435,7 @@ void tst_QMutex::try_lock_until_non_recursive()
     testsTurn.acquire();
     normalMutex.lock();
     threadsTurn.release();
-    QThread::msleep(100);
+    QThread::sleep(100ms);
     normalMutex.unlock();
 
     // wait for thread to finish
diff --git a/tests/auto/corelib/thread/qpromise/tst_qpromise.cpp b/tests/auto/corelib/thread/qpromise/tst_qpromise.cpp
index df410629..10023610 100644
--- a/tests/auto/corelib/thread/qpromise/tst_qpromise.cpp
+++ b/tests/auto/corelib/thread/qpromise/tst_qpromise.cpp
@@ -14,6 +14,8 @@
 #include <memory>
 #include <chrono>
 
+using namespace std::chrono_literals;
+
 class tst_QPromise : public QObject
 {
     Q_OBJECT
@@ -22,6 +24,7 @@ private slots:
     void promise();
     void futureFromPromise();
     void addResult();
+    void addResultWithBracedInitializer();
     void addResultOutOfOrder();
 #ifndef QT_NO_EXCEPTIONS
     void setException();
@@ -170,6 +173,15 @@ void tst_QPromise::addResult()
         QCOMPARE(f.resultCount(), 3);
         QCOMPARE(f.resultAt(2), result);
     }
+    // add multiple results in one go:
+    {
+        QList results = {42, 4242, 424242};
+        QVERIFY(promise.addResults(results));
+        QCOMPARE(f.resultCount(), 6);
+        QCOMPARE(f.resultAt(3), 42);
+        QCOMPARE(f.resultAt(4), 4242);
+        QCOMPARE(f.resultAt(5), 424242);
+    }
     // add as lvalue at position and overwrite
     {
         int result = -1;
@@ -187,6 +199,28 @@ void tst_QPromise::addResult()
     }
 }
 
+void tst_QPromise::addResultWithBracedInitializer() // QTBUG-111826
+{
+    struct MyClass
+    {
+        QString strValue;
+        int intValue = 0;
+#ifndef __cpp_aggregate_paren_init // make emplacement work with MyClass
+        MyClass(QString s, int i) : strValue(std::move(s)), intValue(i) {}
+#endif
+    };
+
+    {
+        QPromise<MyClass> myPromise;
+        myPromise.addResult({"bar", 1});
+    }
+
+    {
+        QPromise<MyClass> myPromise;
+        myPromise.emplaceResult("bar", 1);
+    }
+}
+
 void tst_QPromise::addResultOutOfOrder()
 {
     // Compare results available in QFuture to expected results
@@ -483,7 +517,7 @@ void tst_QPromise::cancelWhenReassigned()
     promise.start();
 
     ThreadWrapper thr([p = std::move(promise)] () mutable {
-        QThread::msleep(100);
+        QThread::sleep(100ms);
         p = QPromise<int>();  // assign new promise, old must be correctly destroyed
     });
 
@@ -618,7 +652,7 @@ void tst_QPromise::finishWhenSwapped()
     promise2.start();
 
     ThreadWrapper thr([&promise1, &promise2] () mutable {
-        QThread::msleep(100);
+        QThread::sleep(100ms);
         promise1.addResult(0);
         promise2.addResult(1);
         swap(promise1, promise2);  // ADL must resolve this
@@ -662,7 +696,7 @@ void testCancelWhenMoved()
 
     // Move promises to local scope to test cancellation behavior
     ThreadWrapper thr([p1 = std::move(promise1), p2 = std::move(promise2)] () mutable {
-        QThread::msleep(100);
+        QThread::sleep(100ms);
         p1 = std::move(p2);
         p1.finish();  // this finish is for future #2
     });
@@ -706,7 +740,7 @@ void tst_QPromise::waitUntilResumed()
 
     while (!f.isSuspended()) {  // busy wait until worker thread suspends
         QCOMPARE(f.isFinished(), false);  // exit condition in case of failure
-        QThread::msleep(50);  // allow another thread to actually carry on
+        QThread::sleep(50ms);  // allow another thread to actually carry on
     }
 
     f.resume();
@@ -735,7 +769,7 @@ void tst_QPromise::waitUntilCanceled()
 
     while (!f.isSuspended()) {  // busy wait until worker thread suspends
         QCOMPARE(f.isFinished(), false);  // exit condition in case of failure
-        QThread::msleep(50);  // allow another thread to actually carry on
+        QThread::sleep(50ms);  // allow another thread to actually carry on
     }
 
     f.cancel();
diff --git a/tests/auto/corelib/thread/qreadwritelock/tst_qreadwritelock.cpp b/tests/auto/corelib/thread/qreadwritelock/tst_qreadwritelock.cpp
index 1b3ab691..12b2d3af 100644
--- a/tests/auto/corelib/thread/qreadwritelock/tst_qreadwritelock.cpp
+++ b/tests/auto/corelib/thread/qreadwritelock/tst_qreadwritelock.cpp
@@ -15,10 +15,6 @@
 #ifdef Q_OS_UNIX
 #include <unistd.h>
 #endif
-#if defined(Q_OS_WIN)
-#  include <qt_windows.h>
-#  define sleep(X) Sleep(X)
-#endif
 
 //on solaris, threads that loop on the release bool variable
 //needs to sleep more than 1 usec.
@@ -30,6 +26,8 @@
 
 #include <stdio.h>
 
+using namespace std::chrono_literals;
+
 class tst_QReadWriteLock : public QObject
 {
     Q_OBJECT
@@ -472,8 +470,8 @@ class ReadLockLoopThread : public QThread
 public:
     QReadWriteLock &testRwlock;
     int runTime;
-    int holdTime;
-    int waitTime;
+    std::chrono::milliseconds holdTime;
+    std::chrono::milliseconds waitTime;
     bool print;
     QElapsedTimer t;
     inline ReadLockLoopThread(QReadWriteLock &l, int runTime, int holdTime=0, int waitTime=0, bool print=false)
@@ -489,9 +487,9 @@ public:
         while (t.elapsed()<runTime)  {
             testRwlock.lockForRead();
             if(print) printf("reading\n");
-            if (holdTime) msleep(ulong(holdTime));
+            if (holdTime > 0ms) sleep(holdTime);
             testRwlock.unlock();
-            if (waitTime) msleep(ulong(waitTime));
+            if (waitTime > 0ms) sleep(waitTime);
         }
     }
 };
@@ -508,8 +506,8 @@ class WriteLockLoopThread : public QThread
 public:
     QReadWriteLock &testRwlock;
     int runTime;
-    int holdTime;
-    int waitTime;
+    std::chrono::milliseconds holdTime;
+    std::chrono::milliseconds waitTime;
     bool print;
     QElapsedTimer t;
     inline WriteLockLoopThread(QReadWriteLock &l, int runTime, int holdTime=0, int waitTime=0, bool print=false)
@@ -525,9 +523,9 @@ public:
         while (t.elapsed() < runTime)  {
             testRwlock.lockForWrite();
             if (print) printf(".");
-            if (holdTime) msleep(ulong(holdTime));
+            if (holdTime > 0ms) sleep(holdTime);
             testRwlock.unlock();
-            if (waitTime) msleep(ulong(waitTime));
+            if (waitTime > 0ms) sleep(waitTime);
         }
     }
 };
@@ -547,7 +545,7 @@ class WriteLockCountThread : public QThread
 public:
     QReadWriteLock &testRwlock;
     int runTime;
-    int waitTime;
+    std::chrono::milliseconds waitTime;
     int maxval;
     QElapsedTimer t;
     inline WriteLockCountThread(QReadWriteLock &l, int runTime, int waitTime, int maxval)
@@ -568,7 +566,7 @@ public:
                 QtPrivate::volatilePreIncrement(count);
             count=0;
             testRwlock.unlock();
-            msleep(ulong(waitTime));
+            sleep(waitTime);
         }
     }
 };
@@ -585,7 +583,7 @@ class ReadLockCountThread : public QThread
 public:
     QReadWriteLock &testRwlock;
     int runTime;
-    int waitTime;
+    std::chrono::milliseconds waitTime;
     QElapsedTimer t;
     inline ReadLockCountThread(QReadWriteLock &l, int runTime, int waitTime)
     :testRwlock(l)
@@ -600,7 +598,7 @@ public:
             if(count)
                 qFatal("Non-zero count at Read! (%d)",count );
             testRwlock.unlock();
-            msleep(ulong(waitTime));
+            sleep(waitTime);
         }
     }
 };
@@ -617,7 +615,7 @@ void tst_QReadWriteLock::readLockBlockRelease()
     threadDone=false;
     ReadLockThread rlt(testLock);
     rlt.start();
-    sleep(1);
+    QThread::sleep(1s);
     testLock.unlock();
     rlt.wait();
     QVERIFY(threadDone);
@@ -634,7 +632,7 @@ void tst_QReadWriteLock::writeLockBlockRelease()
     threadDone=false;
     WriteLockThread wlt(testLock);
     wlt.start();
-    sleep(1);
+    QThread::sleep(1s);
     testLock.unlock();
     wlt.wait();
     QVERIFY(threadDone);
@@ -653,10 +651,10 @@ void tst_QReadWriteLock::multipleReadersBlockRelease()
     ReadLockReleasableThread rlt2(testLock);
     rlt1.start();
     rlt2.start();
-    sleep(1);
+    QThread::sleep(1s);
     WriteLockThread wlt(testLock);
     wlt.start();
-    sleep(1);
+    QThread::sleep(1s);
     release.storeRelaxed(true);
     wlt.wait();
     rlt1.wait();
diff --git a/tests/auto/corelib/thread/qthread/tst_qthread.cpp b/tests/auto/corelib/thread/qthread/tst_qthread.cpp
index 1cade325..511bc02b 100644
--- a/tests/auto/corelib/thread/qthread/tst_qthread.cpp
+++ b/tests/auto/corelib/thread/qthread/tst_qthread.cpp
@@ -38,6 +38,8 @@
 
 #include <QtTest/private/qemulationdetector_p.h>
 
+using namespace std::chrono_literals;
+
 class tst_QThread : public QObject
 {
     Q_OBJECT
@@ -245,17 +247,19 @@ public:
         elapsed = 0;
         QElapsedTimer timer;
         timer.start();
+        std::chrono::nanoseconds dur{0};
         switch (sleepType) {
         case Second:
-            sleep(interval);
+            dur = std::chrono::seconds{interval};
             break;
         case Millisecond:
-            msleep(interval);
+            dur = std::chrono::milliseconds{interval};
             break;
         case Microsecond:
-            usleep(interval);
+            dur = std::chrono::microseconds{interval};
             break;
         }
+        sleep(dur);
         elapsed = timer.elapsed();
 
         cond.wakeOne();
@@ -1603,7 +1607,7 @@ void tst_QThread::createDestruction()
             for (;;) {
                 if (QThread::currentThread()->isInterruptionRequested())
                     return;
-                QThread::msleep(1);
+                QThread::sleep(1ms);
             }
         };
 
@@ -1722,7 +1726,7 @@ void tst_QThread::threadIdReuse()
     bool threadIdReused = false;
 
     for (int i = 0; i < 42; i++) {
-        QThread::msleep(1);
+        QThread::sleep(1ms);
 
         Qt::HANDLE threadId2;
         bool waitOk = false;
diff --git a/tests/auto/corelib/thread/qthreadpool/tst_qthreadpool.cpp b/tests/auto/corelib/thread/qthreadpool/tst_qthreadpool.cpp
index 78f6fe9c..775dd85b 100644
--- a/tests/auto/corelib/thread/qthreadpool/tst_qthreadpool.cpp
+++ b/tests/auto/corelib/thread/qthreadpool/tst_qthreadpool.cpp
@@ -6,6 +6,7 @@
 #include <QSemaphore>
 
 #include <qelapsedtimer.h>
+#include <qrunnable.h>
 #include <qthreadpool.h>
 #include <qstring.h>
 #include <qmutex.h>
@@ -14,6 +15,8 @@
 #include <unistd.h>
 #endif
 
+using namespace std::chrono_literals;
+
 typedef void (*FunctionPointer)();
 
 class FunctionPointerTask : public QRunnable
@@ -43,6 +46,7 @@ public:
 private slots:
     void runFunction();
     void runFunction2();
+    void runFunction3();
     void createThreadRunFunction();
     void runMultiple();
     void waitcomplete();
@@ -83,6 +87,7 @@ private slots:
     void takeAllAndIncreaseMaxThreadCount();
     void waitForDoneAfterTake();
     void threadReuse();
+    void nullFunctions();
 
 private:
     QMutex m_functionTestMutex;
@@ -171,6 +176,23 @@ void tst_QThreadPool::runFunction2()
     QCOMPARE(localCount, 1);
 }
 
+struct DeleteCheck
+{
+    static bool s_deleted;
+    ~DeleteCheck() { s_deleted = true; }
+};
+bool DeleteCheck::s_deleted = false;
+
+void tst_QThreadPool::runFunction3()
+{
+    std::unique_ptr<DeleteCheck> ptr(new DeleteCheck);
+    {
+        TestThreadPool manager;
+        manager.start([my_ptr = std::move(ptr)]() { });
+    }
+    QVERIFY(DeleteCheck::s_deleted);
+}
+
 void tst_QThreadPool::createThreadRunFunction()
 {
     {
@@ -407,7 +429,7 @@ void tst_QThreadPool::expiryTimeoutRace() // QTBUG-3786
     const int numTasks = 20;
     for (int i = 0; i < numTasks; ++i) {
         threadPool.start(&task);
-        QThread::msleep(50); // exactly the same as the expiry timeout
+        QThread::sleep(50ms); // exactly the same as the expiry timeout
     }
     QVERIFY(task.semaphore.tryAcquire(numTasks, 10000));
     QCOMPARE(task.runCount.loadRelaxed(), numTasks);
@@ -1102,7 +1124,7 @@ void tst_QThreadPool::clearWithAutoDelete()
     {
     public:
         MyRunnable() {}
-        void run() override { QThread::usleep(30); }
+        void run() override { QThread::sleep(30us); }
     };
 
     TestThreadPool threadPool;
@@ -1444,5 +1466,30 @@ void tst_QThreadPool::threadReuse()
     }
 }
 
+void tst_QThreadPool::nullFunctions()
+{
+    const auto expectWarning = [] {
+            QTest::ignoreMessage(QtMsgType::QtWarningMsg,
+                                 "Trying to create null QRunnable. This may stop working.");
+        };
+    // Note this is not necessarily testing intended behavior, only undocumented behavior.
+    // If this is changed it should be noted in Behavioral Changes.
+    FunctionPointer nullFunction = nullptr;
+    std::function<void()> nullStdFunction(nullptr);
+    {
+        TestThreadPool manager;
+        // should not crash:
+        expectWarning();
+        manager.start(nullFunction);
+        expectWarning();
+        manager.start(nullStdFunction);
+        // should fail (and not leak):
+        expectWarning();
+        QVERIFY(!manager.tryStart(nullStdFunction));
+        expectWarning();
+        QVERIFY(!manager.tryStart(nullFunction));
+    }
+}
+
 QTEST_MAIN(tst_QThreadPool);
 #include "tst_qthreadpool.moc"
diff --git a/tests/auto/corelib/thread/qwaitcondition/tst_qwaitcondition.cpp b/tests/auto/corelib/thread/qwaitcondition/tst_qwaitcondition.cpp
index 46584d0a..5c6566de 100644
--- a/tests/auto/corelib/thread/qwaitcondition/tst_qwaitcondition.cpp
+++ b/tests/auto/corelib/thread/qwaitcondition/tst_qwaitcondition.cpp
@@ -372,7 +372,7 @@ public:
     { }
 
     static inline void sleep(ulong s)
-    { QThread::sleep(s); }
+    { QThread::sleep(std::chrono::seconds{s}); }
 
     void run() override
     {
@@ -404,7 +404,7 @@ public:
     { }
 
     static inline void sleep(ulong s)
-    { QThread::sleep(s); }
+    { QThread::sleep(std::chrono::seconds{s}); }
 
     void run() override
     {
diff --git a/tests/auto/corelib/time/qcalendar/tst_qcalendar.cpp b/tests/auto/corelib/time/qcalendar/tst_qcalendar.cpp
index acc190c9..4eebce6d 100644
--- a/tests/auto/corelib/time/qcalendar/tst_qcalendar.cpp
+++ b/tests/auto/corelib/time/qcalendar/tst_qcalendar.cpp
@@ -368,13 +368,12 @@ void tst_QCalendar::gregory()
         // dateToJulianDay() and weekDayOfJulian():
         if (!year) // No year zero.
             continue;
-        qint64 first, last;
-        QVERIFY2(QGregorianCalendar::julianFromParts(year, 1, 1, &first),
-                 "Only year zero should lack a first day");
+        const auto first = QGregorianCalendar::julianFromParts(year, 1, 1);
+        QVERIFY2(first, "Only year zero should lack a first day");
         QCOMPARE(QGregorianCalendar::yearStartWeekDay(year),
-                 QGregorianCalendar::weekDayOfJulian(first));
-        QVERIFY2(QGregorianCalendar::julianFromParts(year, 12, 31, &last),
-                 "Only year zero should lack a last day");
+                 QGregorianCalendar::weekDayOfJulian(*first));
+        const auto last = QGregorianCalendar::julianFromParts(year, 12, 31);
+        QVERIFY2(last, "Only year zero should lack a last day");
 
         const int lastTwo = (year + (year < 0 ? 1 : 0)) % 100 + (year < -1 ? 100 : 0);
         const QDate probe(year, lastTwo && lastTwo <= 12 ? lastTwo : 8,
@@ -392,13 +391,14 @@ void tst_QCalendar::gregory()
             if (year > 0 && lastTwo > 31)
                 QCOMPARE(match % 100, lastTwo);
             // Its first and last days of the year match those of year:
-            qint64 day;
-            QVERIFY(QGregorianCalendar::julianFromParts(match, 1, 1, &day));
-            QCOMPARE(QGregorianCalendar::weekDayOfJulian(day),
-                     QGregorianCalendar::weekDayOfJulian(first));
-            QVERIFY(QGregorianCalendar::julianFromParts(match, 12, 31, &day));
-            QCOMPARE(QGregorianCalendar::weekDayOfJulian(day),
-                     QGregorianCalendar::weekDayOfJulian(last));
+            auto day = QGregorianCalendar::julianFromParts(match, 1, 1);
+            QVERIFY(day);
+            QCOMPARE(QGregorianCalendar::weekDayOfJulian(*day),
+                     QGregorianCalendar::weekDayOfJulian(*first));
+            day = QGregorianCalendar::julianFromParts(match, 12, 31);
+            QVERIFY(day);
+            QCOMPARE(QGregorianCalendar::weekDayOfJulian(*day),
+                     QGregorianCalendar::weekDayOfJulian(*last));
         }
     }
 }
diff --git a/tests/auto/corelib/time/qdate/tst_qdate.cpp b/tests/auto/corelib/time/qdate/tst_qdate.cpp
index eb92337e..ab6b8a53 100644
--- a/tests/auto/corelib/time/qdate/tst_qdate.cpp
+++ b/tests/auto/corelib/time/qdate/tst_qdate.cpp
@@ -10,6 +10,16 @@
 #include <QTimeZone>
 
 #include <private/qglobal_p.h> // for the icu feature test
+#include <private/qdatetime_p.h>
+#if !QT_CONFIG(timezone)
+#  include <private/qtenvironmentvariables_p.h> // for qTzName()
+#endif
+
+using namespace QtPrivate::DateTimeConstants;
+
+#if defined(Q_OS_WIN) && !QT_CONFIG(icu)
+#  define USING_WIN_TZ
+#endif
 
 class tst_QDate : public QObject
 {
@@ -34,10 +44,8 @@ private Q_SLOTS:
     void weekNumber_invalid();
     void weekNumber_data();
     void weekNumber();
-#if QT_CONFIG(timezone)
     void startOfDay_endOfDay_data();
     void startOfDay_endOfDay();
-#endif
     void startOfDay_endOfDay_fixed_data();
     void startOfDay_endOfDay_fixed();
     void startOfDay_endOfDay_bounds();
@@ -80,6 +88,15 @@ private Q_SLOTS:
     void qdebug() const;
 private:
     QDate defDate() const { return QDate(1900, 1, 1); }
+
+    QDate epochDate() const {
+        using namespace QtPrivate::DateTimeConstants;
+        Q_ASSERT(JULIAN_DAY_FOR_EPOCH == QDate(1970, 1, 1).toJulianDay());
+        return QDate::fromJulianDay(JULIAN_DAY_FOR_EPOCH);
+    }
+
+    static constexpr qint64 minJd = JulianDayMin;
+    static constexpr qint64 maxJd = JulianDayMax;
     QDate invalidDate() const { return QDate(); }
 };
 
@@ -90,9 +107,6 @@ void tst_QDate::isNull_data()
     QTest::addColumn<qint64>("jd");
     QTest::addColumn<bool>("null");
 
-    qint64 minJd = Q_INT64_C(-784350574879);
-    qint64 maxJd = Q_INT64_C( 784354017364);
-
     QTest::newRow("qint64 min") << std::numeric_limits<qint64>::min() << true;
     QTest::newRow("minJd - 1")  << minJd - 1                          << true;
     QTest::newRow("minJd")      << minJd                              << false;
@@ -480,125 +494,155 @@ void tst_QDate::weekNumber_invalid()
     QCOMPARE( dt.weekNumber( &yearNumber ), 0 );
 }
 
-#if QT_CONFIG(timezone)
+/* The MS backend tends to lack data for historical transitions.  So some of the
+   transition-based tests will get wrong results, that we can't do anything
+   about, when using that backend.  Rather than complicating the #if-ery more,
+   overtly record, in a flags column, which we need to ignore and merely make
+   the testing of these flags subject to #if-ery.
+*/
+enum MsKludge { IgnoreStart = 1, IgnoreEnd = 2, };
+Q_DECLARE_FLAGS(MsKludges, MsKludge)
+Q_DECLARE_OPERATORS_FOR_FLAGS(MsKludges)
+
 void tst_QDate::startOfDay_endOfDay_data()
 {
     QTest::addColumn<QDate>("date"); // Typically a spring-forward.
     // A zone in which that date's start and end are worth checking:
-    QTest::addColumn<QByteArray>("zoneName");
+    QTest::addColumn<QTimeZone>("zone");
     // The start and end times in that zone:
     QTest::addColumn<QTime>("start");
     QTest::addColumn<QTime>("end");
+    QTest::addColumn<MsKludges>("msKludge");
 
-    const QTime initial(0, 0), final(23, 59, 59, 999), invalid(QDateTime().time());
+    const QTime early(0, 0), late(23, 59, 59, 999), invalid(QDateTime().time());
+    constexpr MsKludges IgnoreBoth = IgnoreStart | IgnoreEnd;
+    const QTimeZone UTC(QTimeZone::UTC);
 
-    // UTC is always a valid zone.
-    QTest::newRow("epoch")
-        << QDate(1970, 1, 1) << QByteArray("UTC")
-        << initial << final;
-    if (QTimeZone("America/Sao_Paulo").isValid()) {
-        QTest::newRow("Brazil")
-            << QDate(2008, 10, 19) << QByteArray("America/Sao_Paulo")
-            << QTime(1, 0) << final;
+    using Bound = std::numeric_limits<qint64>;
+    const auto dateAtMillis = [UTC](qint64 millis) {
+        return QDateTime::fromMSecsSinceEpoch(millis, UTC).date();
+    };
+
+    // UTC and fixed offset are always available and predictable:
+    QTest::newRow("epoch") << epochDate() << UTC << early << late << MsKludges{};
+
+    // First and last days in QDateTime's supported range:
+    QTest::newRow("earliest")
+        << dateAtMillis(Bound::min()) << UTC << invalid << late << MsKludges{};
+    QTest::newRow("latest")
+        << dateAtMillis(Bound::max()) << UTC << early << invalid << MsKludges{};
+
+    const struct {
+        const char *test;
+        const char *zone;
+        const QDate day;
+        const QTime start;
+        const QTime end;
+        const MsKludges msOpt;
+    } transitions[] = {
+        // The western Mexico time-zones skipped the first hour of 1970.
+        { "BajaMexico", "America/Hermosillo", QDate(1970, 1, 1), QTime(1, 0), late, IgnoreStart },
+
+        // Compare tst_QDateTime::fromStringDateFormat(ISO 24:00 in DST).
+        { "Brazil", "America/Sao_Paulo", QDate(2008, 10, 19), QTime(1, 0), late, MsKludges{} },
+
+        // Several southern zones within EET (but not the northern ones) spent
+        // part of the 1990s using midnight as spring transition.
+        { "Sofia", "Europe/Sofia", QDate(1994, 3, 27), QTime(1, 0), late, IgnoreStart },
+
+        // Two Pacific zones skipped days to get on the west of the
+        // International Date Line; those days have neither start nor end.
+        { "Kiritimati", "Pacific/Kiritimati", QDate(1994, 12, 31), invalid, invalid, IgnoreBoth },
+        { "Samoa", "Pacific/Apia", QDate(2011, 12, 30), invalid, invalid, IgnoreBoth },
+
+        // TODO: find other zones with transitions at/crossing midnight.
+    };
+    const QTimeZone local = QTimeZone::LocalTime;
+
+#if QT_CONFIG(timezone)
+    const QTimeZone sys = QTimeZone::systemTimeZone();
+    for (const auto &tran : transitions) {
+        if (QTimeZone zone(tran.zone); zone.isValid()) {
+            QTest::newRow(tran.test)
+                << tran.day << zone << tran.start << tran.end << tran.msOpt;
+            if (zone == sys) {
+                QTest::addRow("Local=%s", tran.test)
+                    << tran.day << local << tran.start << tran.end << tran.msOpt;
+            }
+        }
     }
-#if QT_CONFIG(icu) || !defined(Q_OS_WIN) // MS's TZ APIs lack data
-    if (QTimeZone("Europe/Sofia").isValid()) {
-        QTest::newRow("Sofia")
-            << QDate(1994, 3, 27) << QByteArray("Europe/Sofia")
-            << QTime(1, 0) << final;
+#else
+    const auto isLocalZone = [](const char *zone) {
+        const QLatin1StringView name(zone);
+        for (int i = 0; i < 2; ++i) {
+            if (qTzName(i) == name)
+                return true;
+        }
+        return false;
+    };
+    for (const auto &tran : transitions) {
+        if (isLocalZone(tran.zone)) { // Might need a different name to match
+            QTest::addRow("Local=%s", tran.test)
+                << tran.day << local << tran.start << tran.end << tran.msOpt;
+        }
     }
-#endif
-    if (QTimeZone("Pacific/Kiritimati").isValid()) {
-        QTest::newRow("Kiritimati")
-            << QDate(1994, 12, 31) << QByteArray("Pacific/Kiritimati")
-            << invalid << invalid;
-    }
-    if (QTimeZone("Pacific/Apia").isValid()) {
-        QTest::newRow("Samoa")
-            << QDate(2011, 12, 30) << QByteArray("Pacific/Apia")
-            << invalid << invalid;
-    }
-    // TODO: find other zones with transitions at/crossing midnight.
+#endif // timezone
 }
 
 void tst_QDate::startOfDay_endOfDay()
 {
-    QFETCH(QDate, date);
-    QFETCH(QByteArray, zoneName);
-    QFETCH(QTime, start);
-    QFETCH(QTime, end);
-    const auto zone = QTimeZone(zoneName);
+    QFETCH(const QDate, date);
+    QFETCH(const QTimeZone, zone);
+    QFETCH(const QTime, start);
+    QFETCH(const QTime, end);
+#ifdef USING_WIN_TZ // Coping with MS limitations.
+    QFETCH(const MsKludges, msKludge);
+#define UNLESSMS(flag) if (!msKludge.testFlag(flag))
+#else
+#define UNLESSMS(flag)
+#endif
     QVERIFY(zone.isValid());
-    const bool isSystem = QTimeZone::systemTimeZone() == zone;
+
     QDateTime front(date.startOfDay(zone)), back(date.endOfDay(zone));
     if (end.isValid())
         QCOMPARE(date.addDays(1).startOfDay(zone).addMSecs(-1), back);
     if (start.isValid())
         QCOMPARE(date.addDays(-1).endOfDay(zone).addMSecs(1), front);
-    do { // Avoids duplicating these tests for local-time when it *is* zone:
-        if (start.isValid()) {
-            QCOMPARE(front.date(), date);
-            QCOMPARE(front.time(), start);
-        }
-        if (end.isValid()) {
-            QCOMPARE(back.date(), date);
-            QCOMPARE(back.time(), end);
-        }
-        if (front.timeSpec() == Qt::LocalTime)
-            break;
-        front = date.startOfDay();
-        back = date.endOfDay();
-    } while (isSystem);
-    if (end.isValid())
-        QCOMPARE(date.addDays(1).startOfDay().addMSecs(-1), back);
-    if (start.isValid())
-        QCOMPARE(date.addDays(-1).endOfDay().addMSecs(1), front);
-    if (!isSystem) {
-        // These might fail if system zone coincides with zone; but only if it
-        // did something similarly unusual on the date picked for this test.
-        if (start.isValid()) {
-            QCOMPARE(front.date(), date);
-            QCOMPARE(front.time(), QTime(0, 0));
-        }
-        if (end.isValid()) {
-            QCOMPARE(back.date(), date);
-            QCOMPARE(back.time(), QTime(23, 59, 59, 999));
-        }
+
+    if (start.isValid()) {
+        QCOMPARE(front.date(), date);
+        UNLESSMS(IgnoreStart) QCOMPARE(front.time(), start);
     }
+    if (end.isValid()) {
+        QCOMPARE(back.date(), date);
+        UNLESSMS(IgnoreEnd) QCOMPARE(back.time(), end);
+    }
+#undef UNLESSMS
 }
-#endif // timezone
 
 void tst_QDate::startOfDay_endOfDay_fixed_data()
 {
+    QTest::addColumn<QDate>("date");
+
     const qint64 kilo(1000);
     using Bounds = std::numeric_limits<qint64>;
     const auto UTC = QTimeZone::UTC;
-    const QDateTime
-        first(QDateTime::fromMSecsSinceEpoch(Bounds::min() + 1, UTC)),
-        start32sign(QDateTime::fromMSecsSinceEpoch(Q_INT64_C(-0x80000000) * kilo, UTC)),
-        end32sign(QDateTime::fromMSecsSinceEpoch(Q_INT64_C(0x80000000) * kilo, UTC)),
-        end32unsign(QDateTime::fromMSecsSinceEpoch(Q_INT64_C(0x100000000) * kilo, UTC)),
-        last(QDateTime::fromMSecsSinceEpoch(Bounds::max(), UTC));
+    const QDateTime first(QDateTime::fromMSecsSinceEpoch(Bounds::min() + 1, UTC));
+    const QDateTime start32sign(QDateTime::fromMSecsSinceEpoch(Q_INT64_C(-0x80000000) * kilo, UTC));
+    const QDateTime end32sign(QDateTime::fromMSecsSinceEpoch(Q_INT64_C(0x80000000) * kilo, UTC));
+    const QDateTime end32unsign(QDateTime::fromMSecsSinceEpoch(Q_INT64_C(0x100000000) * kilo, UTC));
+    const QDateTime last(QDateTime::fromMSecsSinceEpoch(Bounds::max(), UTC));
 
-    const struct {
-        const char *name;
-        QDate date;
-    } data[] = {
-        { "epoch", QDate(1970, 1, 1) },
-        { "y2k-leap-day", QDate(2000, 2, 29) },
-        { "start-1900", QDate(1900, 1, 1) }, // QTBUG-99747
-        // Just outside the start and end of 32-bit time_t:
-        { "pre-sign32", QDate(start32sign.date().year(), 1, 1) },
-        { "post-sign32", QDate(end32sign.date().year(), 12, 31) },
-        { "post-uint32", QDate(end32unsign.date().year(), 12, 31) },
-        // Just inside the start and end of QDateTime's range:
-        { "first-full", first.date().addDays(1) },
-        { "last-full", last.date().addDays(-1) }
-    };
-
-    QTest::addColumn<QDate>("date");
-    for (const auto &r : data)
-        QTest::newRow(r.name) << r.date;
+    QTest::newRow("epoch") <<  epochDate();
+    QTest::newRow("y2k-leap-day") << QDate(2000, 2, 29);
+    QTest::newRow("start-1900") << QDate(1900, 1, 1); // QTBUG-99747
+   // Just outside the start and end of 32-bit time_t:
+    QTest::newRow("pre-sign32") << QDate(start32sign.date().year(), 1, 1);
+    QTest::newRow("post-sign32") << QDate(end32sign.date().year(), 12, 31);
+    QTest::newRow("post-uint32") << QDate(end32unsign.date().year(), 12, 31);
+    // Just inside the start and end of QDateTime's range:
+    QTest::newRow("first-full") << first.date().addDays(1);
+    QTest::newRow("last-full") << last.date().addDays(-1);
 }
 
 void tst_QDate::startOfDay_endOfDay_fixed()
@@ -652,7 +696,6 @@ void tst_QDate::startOfDay_endOfDay_bounds()
     QVERIFY(last.isValid());
     QVERIFY(first < epoch);
     QVERIFY(last > epoch);
-    // QDateTime's addMSecs doesn't check against {und,ov}erflow ...
     QVERIFY(!first.addMSecs(-1).isValid() || first.addMSecs(-1) > first);
     QVERIFY(!last.addMSecs(1).isValid() || last.addMSecs(1) < last);
 
@@ -678,8 +721,6 @@ void tst_QDate::julianDaysLimits()
 {
     qint64 min = std::numeric_limits<qint64>::min();
     qint64 max = std::numeric_limits<qint64>::max();
-    qint64 minJd = Q_INT64_C(-784350574879);
-    qint64 maxJd = Q_INT64_C( 784354017364);
 
     QDate maxDate = QDate::fromJulianDay(maxJd);
     QDate minDate = QDate::fromJulianDay(minJd);
@@ -902,9 +943,6 @@ void tst_QDate::addYears_data()
 
 void tst_QDate::daysTo()
 {
-    qint64 minJd = Q_INT64_C(-784350574879);
-    qint64 maxJd = Q_INT64_C( 784354017364);
-
     QDate dt1(2000, 1, 1);
     QDate dt2(2000, 1, 5);
     QCOMPARE(dt1.daysTo(dt2), (qint64) 4);
@@ -1199,13 +1237,13 @@ void tst_QDate::fromStringDateFormat_data()
         << QString::fromLatin1(" 13 Feb 1987 13:24:51 +0100")
         << Qt::RFC2822Date << QDate(1987, 2, 13);
     QTest::newRow("RFC 2822 with day") << QString::fromLatin1("Thu, 01 Jan 1970 00:12:34 +0000")
-        << Qt::RFC2822Date << QDate(1970, 1, 1);
+        << Qt::RFC2822Date << epochDate();
     QTest::newRow("RFC 2822 with day after space")
         << QString::fromLatin1(" Thu, 01 Jan 1970 00:12:34 +0000")
-        << Qt::RFC2822Date << QDate(1970, 1, 1);
+        << Qt::RFC2822Date << epochDate();
     // No timezone
     QTest::newRow("RFC 2822 no timezone") << QString::fromLatin1("01 Jan 1970 00:12:34")
-        << Qt::RFC2822Date << QDate(1970, 1, 1);
+        << Qt::RFC2822Date << epochDate();
     // No time specified
     QTest::newRow("RFC 2822 date only") << QString::fromLatin1("01 Nov 2002")
         << Qt::RFC2822Date << QDate(2002, 11, 1);
@@ -1244,7 +1282,7 @@ void tst_QDate::fromStringDateFormat_data()
         << Qt::RFC2822Date << QDate(1987, 2, 13);
     // No timezone
     QTest::newRow("RFC 850 and 1036 no timezone") << QString::fromLatin1("Thu Jan 01 00:12:34 1970")
-        << Qt::RFC2822Date << QDate(1970, 1, 1);
+        << Qt::RFC2822Date << epochDate();
     // No time specified
     QTest::newRow("RFC 850 and 1036 date only") << QString::fromLatin1("Fri Nov 01 2002")
         << Qt::RFC2822Date << QDate(2002, 11, 1);
@@ -1354,11 +1392,23 @@ void tst_QDate::fromStringFormat_data()
     QTest::newRow("lateMarch") << QString("9999-03-06") << QString("yyyy-MM-dd") << QDate(9999, 3, 6);
     QTest::newRow("late") << QString("9999-12-31") << QString("yyyy-MM-dd") << QDate(9999, 12, 31);
 
+    QTest::newRow("quoted-dd") << QString("21dd-05-2006") << QString("dd'dd'-MM-yyyy")
+                               << QDate(2006, 5, 21);
+    QTest::newRow("quoted-MM") << QString("21-MM05-2006") << QString("dd-'MM'MM-yyyy")
+                               << QDate(2006, 5, 21);
+    QTest::newRow("quotes-empty") << QString("21-'05-2006") << QString("dd-MM-''yy")
+                                  << QDate(2006, 5, 21);
+
     // Test unicode handling.
     QTest::newRow("Unicode in format string")
         << QString(u8"2020🤣09🤣21") << QString(u8"yyyy🤣MM🤣dd") << QDate(2020, 9, 21);
-    QTest::newRow("Unicode in quoted format string")
+    QTest::newRow("Unicode-in-format-string-quoted-emoji")
         << QString(u8"🤣🤣2020👍09🤣21") << QString(u8"'🤣🤣'yyyy👍MM🤣dd") << QDate(2020, 9, 21);
+    QTest::newRow("Unicode-in-quoted-dd-format-string")
+            << QString(u8"🤣🤣2020👍09🤣21dd") << QString(u8"🤣🤣yyyy👍MM🤣dd'dd'") << QDate(2020, 9, 21);
+    QTest::newRow("Unicode-in-all-formats-quoted-string")
+            << QString(u8"🤣🤣yyyy2020👍MM09🤣21dd") << QString(u8"🤣🤣'yyyy'yyyy👍'MM'MM🤣dd'dd'")
+            << QDate(2020, 9, 21);
 
     // QTBUG-84334
     QTest::newRow("-ve year: front, nosep")
@@ -1441,6 +1491,8 @@ void tst_QDate::fromStringFormat()
     QFETCH(QDate, expected);
 
     QDate dt = QDate::fromString(string, format);
+    QEXPECT_FAIL("quotes-empty", "QTBUG-110669: doubled single-quotes in format mishandled",
+                 Continue);
     QCOMPARE(dt, expected);
 }
 #endif // datetimeparser
@@ -1653,9 +1705,6 @@ void tst_QDate::roundtrip() const
         loopDate = loopDate.addDays(1);
     }
 
-    qint64 minJd = Q_INT64_C(-784350574879);
-    qint64 maxJd = Q_INT64_C( 784354017364);
-
     // Test Gregorian round trip at top end of conversion range
     loopDate = QDate::fromJulianDay(maxJd);
     while (loopDate.toJulianDay() >= maxJd - 146397) {
diff --git a/tests/auto/corelib/time/qdatetime/tst_qdatetime.cpp b/tests/auto/corelib/time/qdatetime/tst_qdatetime.cpp
index 87f1b629..1054e5f9 100644
--- a/tests/auto/corelib/time/qdatetime/tst_qdatetime.cpp
+++ b/tests/auto/corelib/time/qdatetime/tst_qdatetime.cpp
@@ -7,8 +7,8 @@
 
 #include <QTimeZone>
 #include <private/qdatetime_p.h>
+#include <private/qtenvironmentvariables_p.h> // for qTzSet(), qTzName()
 
-#include <time.h>
 #ifdef Q_OS_WIN
 #   include <qt_windows.h>
 #endif
@@ -151,11 +151,34 @@ private Q_SLOTS:
 #endif
 
 private:
-    enum { LocalTimeIsUtc = 0, LocalTimeAheadOfUtc = 1, LocalTimeBehindUtc = -1} localTimeType;
+    /*
+      Various zones close to UTC (notably Iceland, the WET zones and several in
+      West Africa) or nominally assigned to it historically (north Canada, the
+      Antarctic) and those that have crossed the international date-line (by
+      skipping or repeating a day) don't have a consistent answer to "which side
+      of UTC is it ?" So the various LocalTimeType members may be different.
+    */
+    enum LocalTimeType { LocalTimeIsUtc = 0, LocalTimeAheadOfUtc = 1, LocalTimeBehindUtc = -1};
+    const LocalTimeType solarMeanType, epochTimeType, futureTimeType, distantTimeType;
     static constexpr auto UTC = QTimeZone::UTC;
+    static constexpr qint64 epochJd = Q_INT64_C(2440588);
     int preZoneFix;
     bool zoneIsCET;
 
+    static LocalTimeType timeTypeFor(qint64 jand, qint64 juld)
+    {
+        constexpr uint day = 24 * 3600; // in seconds
+        QDateTime jan = QDateTime::fromSecsSinceEpoch(jand * day);
+        QDateTime jul = QDateTime::fromSecsSinceEpoch(juld * day);
+        if (jan.date().toJulianDay() < jand + epochJd || jul.date().toJulianDay() < juld + epochJd)
+            return LocalTimeBehindUtc;
+        if (jan.date().toJulianDay() > jand + epochJd || jul.date().toJulianDay() > juld + epochJd
+                || jan.time().hour() > 0 || jul.time().hour() > 0) {
+            return LocalTimeAheadOfUtc;
+        }
+        return LocalTimeIsUtc;
+    }
+
     class TimeZoneRollback
     {
         const QByteArray prior;
@@ -183,7 +206,18 @@ private:
 Q_DECLARE_METATYPE(Qt::TimeSpec)
 Q_DECLARE_METATYPE(Qt::DateFormat)
 
-tst_QDateTime::tst_QDateTime()
+tst_QDateTime::tst_QDateTime() :
+    // UTC starts of January and July in the commented years:
+    solarMeanType(timeTypeFor(-62091, -61910)), // 1800
+    epochTimeType(timeTypeFor(0, 181)), // 1970
+    // Use stable future, to which current rule is extrapolated, as surrogate for variable current:
+    futureTimeType(timeTypeFor(24837, 25018)), // 2038
+    // The glibc functions only handle DST as far as a 32-bit signed day-count
+    // from some date in 1970 reaches; the future extreme of that is in the
+    // second half of 5'881'580 CE. Beyond 5'881'581 CE it treats all zones as
+    // being in their January state, regardless of time of year. So use data for
+    // this later year for tests of QDateTime's upper bound.
+    distantTimeType(timeTypeFor(0x800000adLL, 0x80000162LL))
 {
     /*
       Due to some jurisdictions changing their zones and rules, it's possible
@@ -197,7 +231,6 @@ tst_QDateTime::tst_QDateTime()
       might not be properly handled by our work-arounds for the MS backend and
       32-bit time_t; so don't probe them here.
     */
-    const uint day = 24 * 3600; // in seconds
     zoneIsCET = (QDateTime(QDate(2038, 1, 19), QTime(4, 14, 7)).toSecsSinceEpoch() == 0x7fffffff
                  // Entries a year apart robustly differ by multiples of day.
                  && QDate(2015, 7, 1).startOfDay().toSecsSinceEpoch() == 1435701600
@@ -227,31 +260,6 @@ tst_QDateTime::tst_QDateTime()
     Q_ASSERT(preZoneFix > -7200 && preZoneFix < 7200);
     // So it's OK to add it to a QTime() between 02:00 and 22:00, but otherwise
     // we must add it to the QDateTime constructed from it.
-
-    /*
-      Again, rule changes can cause a TZ to look like UTC at some sample dates
-      but deviate at some date relevant to a test using localTimeType.  These
-      tests mostly use years outside the 1970--2037 range, for which we trust
-      our TZ data, so we can't helpfully be exhaustive.  Instead, scan a sample
-      of years' starts and middles.
-    */
-    const int sampled = 3;
-    // UTC starts of months in 2004, 2038 and 1970:
-    qint64 jans[sampled] = { 12418 * day, 24837 * day, 0 };
-    qint64 juls[sampled] = { 12600 * day, 25018 * day, 181 * day };
-    localTimeType = LocalTimeIsUtc;
-    for (int i = sampled; i-- > 0; ) {
-        QDateTime jan = QDateTime::fromSecsSinceEpoch(jans[i]);
-        QDateTime jul = QDateTime::fromSecsSinceEpoch(juls[i]);
-        if (jan.date().year() < 1970 || jul.date().month() < 7) {
-            localTimeType = LocalTimeBehindUtc;
-            break;
-        } else if (jan.time().hour() > 0 || jul.time().hour() > 0
-                   || jan.date().day() > 1 || jul.date().day() > 1) {
-            localTimeType = LocalTimeAheadOfUtc;
-            break;
-        }
-    }
 }
 
 void tst_QDateTime::initTestCase()
@@ -259,7 +267,7 @@ void tst_QDateTime::initTestCase()
     // Never construct a message like this in an i18n context...
     const char *typemsg1 = "exactly";
     const char *typemsg2 = "and therefore not";
-    switch (localTimeType) {
+    switch (futureTimeType) {
     case LocalTimeIsUtc:
         break;
     case LocalTimeBehindUtc:
@@ -326,7 +334,7 @@ void tst_QDateTime::ctor()
 
 void tst_QDateTime::operator_eq()
 {
-    QVERIFY(QDateTime() != QDateTime(QDate(1970, 1, 1), QTime(0, 0))); // QTBUG-79006
+    QVERIFY(QDateTime() != QDate(1970, 1, 1).startOfDay()); // QTBUG-79006
     QDateTime dt1(QDate(2004, 3, 24), QTime(23, 45, 57), UTC);
     QDateTime dt2(QDate(2005, 3, 11), QTime(0, 0), UTC);
     dt2 = dt1;
@@ -756,6 +764,7 @@ void tst_QDateTime::setMSecsSinceEpoch()
     QFETCH(qint64, msecs);
     QFETCH(QDateTime, utc);
     QFETCH(QDateTime, cet);
+    using Bound = std::numeric_limits<qint64>;
 
     QDateTime dt;
     dt.setTimeZone(UTC);
@@ -789,10 +798,10 @@ void tst_QDateTime::setMSecsSinceEpoch()
         QCOMPARE(dt1.timeSpec(), Qt::UTC);
     }
 
-    if (zoneIsCET && (msecs == std::numeric_limits<qint64>::max()
+    if (zoneIsCET && (msecs == Bound::max()
                       // LocalTime will also overflow for min in a CET zone west
                       // of Greenwich (Europe/Madrid):
-                      || (preZoneFix < -3600 && msecs == std::numeric_limits<qint64>::min()))) {
+                      || (preZoneFix < -3600 && msecs == Bound::min()))) {
         QVERIFY(!cet.isValid()); // overflows
     } else if (zoneIsCET) {
         QVERIFY(cet.isValid());
@@ -834,18 +843,22 @@ void tst_QDateTime::setMSecsSinceEpoch()
     QCOMPARE(dt, reference.addMSecs(msecs));
 
     // Tests that we correctly recognize when we fall off the extremities:
-    if (msecs == std::numeric_limits<qint64>::max()) {
+    if (msecs == Bound::max()) {
         QDateTime off(QDate(1970, 1, 1).startOfDay(QTimeZone::fromSecondsAheadOfUtc(1)));
         off.setMSecsSinceEpoch(msecs);
         QVERIFY(!off.isValid());
-    } else if (msecs == std::numeric_limits<qint64>::min()) {
+    } else if (msecs == Bound::min()) {
         QDateTime off(QDate(1970, 1, 1).startOfDay(QTimeZone::fromSecondsAheadOfUtc(-1)));
         off.setMSecsSinceEpoch(msecs);
         QVERIFY(!off.isValid());
     }
 
-    if ((localTimeType == LocalTimeAheadOfUtc && msecs == std::numeric_limits<qint64>::max())
-        || (localTimeType == LocalTimeBehindUtc && msecs == std::numeric_limits<qint64>::min())) {
+    // Check overflow; only robust if local time is the same at epoch as relevant bound.
+    // See setting of LocalTimeType values for details.
+    if (epochTimeType == LocalTimeAheadOfUtc
+        ? distantTimeType == LocalTimeAheadOfUtc && msecs == Bound::max()
+        : (solarMeanType == LocalTimeBehindUtc && msecs == Bound::min()
+           && epochTimeType == LocalTimeBehindUtc)) {
         QDateTime curt = QDate(1970, 1, 1).startOfDay(); // initially in short-form
         curt.setMSecsSinceEpoch(msecs); // Overflows due to offset
         QVERIFY(!curt.isValid());
@@ -867,10 +880,10 @@ void tst_QDateTime::fromMSecsSinceEpoch()
     // you're East or West of Greenwich.  In UTC, we won't overflow. If we're
     // actually west of Greenwich but (e.g. Europe/Madrid) our zone claims east,
     // "min" can also overflow (case only caught if local time is CET).
-    const bool localOverflow = (localTimeType == LocalTimeAheadOfUtc
-                                ? msecs == Bound::max() || preZoneFix < -3600
-                                : localTimeType == LocalTimeBehindUtc && msecs == Bound::min());
-    if (!localOverflow)
+    const bool localOverflow =
+        (distantTimeType == LocalTimeAheadOfUtc && (msecs == Bound::max() || preZoneFix < -3600))
+        || (solarMeanType == LocalTimeBehindUtc && msecs == Bound::min());
+    if (!localOverflow) // Can fail if offset changes sign, e.g. Alaska, Philippines.
         QCOMPARE(dtLocal, utc);
 
     QCOMPARE(dtUtc, utc);
@@ -925,7 +938,22 @@ void tst_QDateTime::fromSecsSinceEpoch()
     QVERIFY(!QDateTime::fromSecsSinceEpoch(-maxSeconds - 1, UTC).isValid());
 
     // Local time: need to adjust for its zone offset
-    const qint64 last = maxSeconds - qMax(late.addYears(-1).toLocalTime().offsetFromUtc(), 0);
+    const int lateOffset = late.addYears(-1).toLocalTime().offsetFromUtc();
+#if QT_CONFIG(timezone)
+    // Check what system zone believes in, as it's used as fall-back to cope
+    // with times outside the system time_t functions' range, or overflow on the
+    // results of using those functions. (It seems glibc's handling of
+    // Australasian zones parts company with the IANA DB after about 5881580 CE,
+    // leaving NZ in permanent DST after that, for example.) Of course, if
+    // that's less than lateOffset (as it is for glibc's similar handling of
+    // MET), the fall-back code will also fail when the primary code fails, so
+    // use the lesser of these late offsets.
+    const int lateZone = qMin(QTimeZone::systemTimeZone().offsetFromUtc(late), lateOffset);
+#else
+    const int lateZone = lateOffset;
+#endif
+
+    const qint64 last = maxSeconds - qMax(lateZone, 0);
     QVERIFY(QDateTime::fromSecsSinceEpoch(last).isValid());
     QVERIFY(!QDateTime::fromSecsSinceEpoch(last + 1).isValid());
     const qint64 first = -maxSeconds - qMin(early.addYears(1).toLocalTime().offsetFromUtc(), 0);
@@ -1263,13 +1291,17 @@ void tst_QDateTime::addDays()
     }
 #endif
 
-    // Test last UTC second of 1969 *is* valid (despite being time_t(-1))
-    dt1 = QDateTime(QDate(1969, 12, 30), QTime(23, 59, 59), UTC).toLocalTime().addDays(1);
-    QVERIFY(dt1.isValid());
-    QCOMPARE(dt1.toSecsSinceEpoch(), -1);
-    dt2 = QDateTime(QDate(1970, 1, 1), QTime(23, 59, 59), UTC).toLocalTime().addDays(-1);
-    QVERIFY(dt2.isValid());
-    QCOMPARE(dt2.toSecsSinceEpoch(), -1);
+    // Baja Mexico has a transition at the epoch, see fromStringDateFormat_data().
+    if (QDateTime(QDate(1969, 12, 30), QTime(0, 0)).secsTo(
+            QDateTime(QDate(1970, 1, 2), QTime(0, 0))) == 3 * 24 * 60 * 60) {
+        // Test last UTC second of 1969 *is* valid (despite being time_t(-1))
+        dt1 = QDateTime(QDate(1969, 12, 30), QTime(23, 59, 59), UTC).toLocalTime().addDays(1);
+        QVERIFY(dt1.isValid());
+        QCOMPARE(dt1.toSecsSinceEpoch(), -1);
+        dt2 = QDateTime(QDate(1970, 1, 1), QTime(23, 59, 59), UTC).toLocalTime().addDays(-1);
+        QVERIFY(dt2.isValid());
+        QCOMPARE(dt2.toSecsSinceEpoch(), -1);
+    }
 }
 
 void tst_QDateTime::addInvalid()
@@ -1525,10 +1557,10 @@ void tst_QDateTime::addMSecs_data()
         << QDateTime(QDate(2013, 1, 1), QTime(2, 2, 3), QTimeZone::fromSecondsAheadOfUtc(60 * 60));
     // Check last second of 1969
     QTest::newRow("epoch-1s-utc")
-        << QDateTime(QDate(1970, 1, 1), QTime(0, 0), UTC) << qint64(-1)
+        << QDate(1970, 1, 1).startOfDay(UTC) << qint64(-1)
         << QDateTime(QDate(1969, 12, 31), QTime(23, 59, 59), UTC);
     QTest::newRow("epoch-1s-local")
-        << QDateTime(QDate(1970, 1, 1), QTime(0, 0)) << qint64(-1)
+        << QDate(1970, 1, 1).startOfDay() << qint64(-1)
         << QDateTime(QDate(1969, 12, 31), QTime(23, 59, 59));
     QTest::newRow("epoch-1s-utc-as-local")
         << QDate(1970, 1, 1).startOfDay(UTC).toLocalTime() << qint64(-1)
@@ -2142,12 +2174,13 @@ void tst_QDateTime::springForward_data()
       document any such conflicts, if discovered.
 
       See http://www.timeanddate.com/time/zones/ for data on more candidates to
-      test.
-     */
+      test. Note, however, that the IANA DB disagrees with it for some zones,
+      and is authoritative.
+    */
 
-    QTimeZone local(QTimeZone::LocalTime);
-    uint winter = QDate(2015, 1, 1).startOfDay(local).toSecsSinceEpoch();
-    uint summer = QDate(2015, 7, 1).startOfDay(local).toSecsSinceEpoch();
+    const QTimeZone local(QTimeZone::LocalTime);
+    const uint winter = QDate(2015, 1, 1).startOfDay(local).toSecsSinceEpoch();
+    const uint summer = QDate(2015, 7, 1).startOfDay(local).toSecsSinceEpoch();
 
     if (winter == 1420066800 && summer == 1435701600) {
         QTest::newRow("Local (CET) from day before")
@@ -2155,11 +2188,28 @@ void tst_QDateTime::springForward_data()
         QTest::newRow("Local (CET) from day after")
             << local << QDate(2015, 3, 29) << QTime(2, 30) << -1 << 120;
     } else if (winter == 1420063200 && summer == 1435698000) {
-        // e.g. Finland, where our CI runs ...
+        // EET: but there's some variation in the date and time.
+        // Asia/{Amman,Beirut,Gaza,Hebron}, Europe/Chisinau and Israel: at start of
+        QDate date(2015, 3, 29); // Sunday by default.
+        QTime time(0, 30);
+        if (auto thursday = QDate(2015, 3, 26); thursday.startOfDay(local).time() > time) {
+            // Asia/Damascus: start of March 26th.
+            date = thursday;
+        } else if (auto friday = QDate(2015, 3, 27); friday.startOfDay(local).time() > time) {
+            // Israel, Asia/{Jerusalem,Tel_Aviv}: start of March 27th (IANA DB).
+            date = friday;
+        } else if (friday.startOfDay(local).addSecs(2 * 60 * 60).time() == QTime(3, 0)) {
+            // Israel, Asia/{Jerusalem,Tel_Aviv} according to glibc at 02:00 on March 27th.
+            date = friday;
+            time = QTime(2, 30);
+        } else if (date.startOfDay(local).time() < time) {
+            // Most of Europeean EET, e.g. Finland.
+            time = QTime(3, 30);
+        }
         QTest::newRow("Local (EET) from day before")
-            << local << QDate(2015, 3, 29) << QTime(3, 30) << 1 << 120;
+            << local << date << time << 1 << 120;
         QTest::newRow("Local (EET) from day after")
-            << local << QDate(2015, 3, 29) << QTime(3, 30) << -1 << 180;
+            << local << date << time << -1 << 180;
     } else if (winter == 1420070400 && summer == 1435705200) {
         // Western European Time, WET/WEST; a.k.a. GMT/BST
         QTest::newRow("Local (WET) from day before")
@@ -2168,16 +2218,23 @@ void tst_QDateTime::springForward_data()
             << local << QDate(2015, 3, 29) << QTime(1, 30) << -1 << 60;
     } else if (winter == 1420099200 && summer == 1435734000) {
         // Western USA, Canada: Pacific Time (e.g. US/Pacific)
+        QDate date(2015, 3, 8);
+        // America/Ensenada did its transition on April 5th, like the rest of Mexico.
+        if (QDate(2015, 4, 1).startOfDay().toSecsSinceEpoch() == 1427875200)
+            date = QDate(2015, 4, 5);
         QTest::newRow("Local (PT) from day before")
-            << local << QDate(2015, 3, 8) << QTime(2, 30) << 1 << -480;
+            << local << date << QTime(2, 30) << 1 << -480;
         QTest::newRow("Local (PT) from day after")
-            << local << QDate(2015, 3, 8) << QTime(2, 30) << -1 << -420;
+            << local << date << QTime(2, 30) << -1 << -420;
     } else if (winter == 1420088400 && summer == 1435723200) {
         // Eastern USA, Canada: Eastern Time (e.g. US/Eastern)
+        // Havana matches offset and date, but at midnight.
+        const QTime start = QDate(2015, 3, 8).startOfDay(local).time();
+        const QTime when = start == QTime(0, 0) ? QTime(2, 30) : QTime(0, 30);
         QTest::newRow("Local(ET) from day before")
-            << local << QDate(2015, 3, 8) << QTime(2, 30) << 1 << -300;
+            << local << QDate(2015, 3, 8) << when << 1 << -300;
         QTest::newRow("Local(ET) from day after")
-            << local << QDate(2015, 3, 8) << QTime(2, 30) << -1 << -240;
+            << local << QDate(2015, 3, 8) << when << -1 << -240;
 #if !QT_CONFIG(timezone)
     } else {
         // Includes the numbers you need to test for your zone, as above:
@@ -2233,15 +2290,19 @@ void tst_QDateTime::springForward()
         QCOMPARE(direct.date(), day);
         QCOMPARE(direct.time().minute(), time.minute());
         QCOMPARE(direct.time().second(), time.second());
-        int off = direct.time().hour() - time.hour();
-        QVERIFY(off == 1 || off == -1);
         // Note: function doc claims always +1, but this should be reviewed !
+        int off = direct.time().hour() - time.hour();
+        auto report = qScopeGuard([off]() {
+            qDebug("Offset %d found where 1 or -1 expected", off);
+        });
+        QVERIFY(off == 1 || off == -1);
+        report.dismiss();
     }
 
-    // Repeat, but getting there via .toTimeZone():
-    QDateTime detour = QDateTime(day.addDays(-step),
-                                 time.addSecs(-60 * adjust),
-                                 UTC).toTimeZone(zone);
+    // Repeat, but getting there via .toTimeZone(). Apply adjust to datetime,
+    // not time, as the time wraps round if the adjustment crosses midnight.
+    QDateTime detour = QDateTime(day.addDays(-step), time,
+                                 UTC).addSecs(-60 * adjust).toTimeZone(zone);
     QCOMPARE(detour.time(), time);
     detour = detour.addDays(step);
     // Insist on consistency:
@@ -2285,7 +2346,7 @@ void tst_QDateTime::operator_eqeq_data()
     QTest::newRow("data10") << dateTime3 << dateTime3c << true << false;
     QTest::newRow("data11") << dateTime3 << dateTime3d << true << false;
     QTest::newRow("data12") << dateTime3c << dateTime3d << true << false;
-    if (localTimeType == LocalTimeIsUtc)
+    if (epochTimeType == LocalTimeIsUtc)
         QTest::newRow("data13") << dateTime3 << dateTime3e << true << false;
     // ... but a zone (sometimes) ahead of or behind UTC (e.g. Europe/London)
     // might agree with UTC about the epoch, all the same.
@@ -2478,6 +2539,10 @@ void tst_QDateTime::fromStringDateFormat_data()
     QTest::addColumn<Qt::DateFormat>("dateFormat");
     QTest::addColumn<QDateTime>("expected");
 
+    // Fails 1970 start dates in western Mexico
+    // due to changing from PST to MST at the start of 1970.
+    const bool goodEpochStart = QDateTime(QDate(1970, 1, 1), QTime(0, 0)).isValid();
+
     // Test Qt::TextDate format.
     QTest::newRow("text date") << QString::fromLatin1("Tue Jun 17 08:00:10 2003")
         << Qt::TextDate << QDateTime(QDate(2003, 6, 17), QTime(8, 0, 10));
@@ -2489,22 +2554,25 @@ void tst_QDateTime::fromStringDateFormat_data()
         << Qt::TextDate << QDateTime(QDate(12345, 6, 17), QTime(8, 0, 10));
     QTest::newRow("text date Year -4712") << QString::fromLatin1("Tue Jan 1 00:01:02 -4712")
         << Qt::TextDate << QDateTime(QDate(-4712, 1, 1), QTime(0, 1, 2));
-    QTest::newRow("text epoch")
-        << QString::fromLatin1("Thu Jan 1 00:00:00 1970") << Qt::TextDate
-        << QDate(1970, 1, 1).startOfDay();
     QTest::newRow("text data1") << QString::fromLatin1("Thu Jan 2 12:34 1970")
         << Qt::TextDate << QDateTime(QDate(1970, 1, 2), QTime(12, 34));
+    if (goodEpochStart) {
+        QTest::newRow("text epoch year after time")
+            << QString::fromLatin1("Thu Jan 1 00:00:00 1970") << Qt::TextDate
+            << QDate(1970, 1, 1).startOfDay();
+        QTest::newRow("text epoch spaced")
+            << QString::fromLatin1(" Thu   Jan   1    00:00:00    1970  ")
+            << Qt::TextDate << QDate(1970, 1, 1).startOfDay();
+        QTest::newRow("text epoch time after year")
+            << QString::fromLatin1("Thu Jan 1 1970 00:00:00")
+            << Qt::TextDate << QDate(1970, 1, 1).startOfDay();
+    }
     QTest::newRow("text epoch terse")
         << QString::fromLatin1("Thu Jan 1 00 1970") << Qt::TextDate << QDateTime();
     QTest::newRow("text epoch stray :00")
         << QString::fromLatin1("Thu Jan 1 00:00:00:00 1970") << Qt::TextDate << QDateTime();
-    QTest::newRow("text epoch spaced")
-        << QString::fromLatin1(" Thu   Jan   1    00:00:00    1970  ")
-        << Qt::TextDate << QDate(1970, 1, 1).startOfDay();
     QTest::newRow("text data6") << QString::fromLatin1("Thu Jan 1 00:00:00")
         << Qt::TextDate << QDateTime();
-    QTest::newRow("text data7") << QString::fromLatin1("Thu Jan 1 1970 00:00:00")
-                                << Qt::TextDate << QDate(1970, 1, 1).startOfDay();
     QTest::newRow("text bad offset") << QString::fromLatin1("Thu Jan 1 00:12:34 1970 UTC+foo")
         << Qt::TextDate << QDateTime();
     QTest::newRow("text UTC early") << QString::fromLatin1("Thu Jan 1 00:12:34 1970 UTC")
@@ -2885,34 +2953,35 @@ void tst_QDateTime::fromStringStringFormat_data()
     QTest::addColumn<QDateTime>("expected");
 
     const QDate defDate(1900, 1, 1);
-    QTest::newRow("data0")
-        << QString("101010") << QString("dMyy") << QDate(1910, 10, 10).startOfDay();
+    // Indian/Cocos had a transition at the start of 1900, so its Jan 1st starts
+    // at 00:02:20 on that day; this leads to perverse results. QTBUG-77948.
+    if (defDate.startOfDay().time() == QTime(0, 0)) {
+        QTest::newRow("dMyy-only")
+            << QString("101010") << QString("dMyy") << QDate(1910, 10, 10).startOfDay();
+        QTest::newRow("secs-repeat-valid")
+            << QString("1010") << QString("sss") << QDateTime(defDate, QTime(0, 0, 10));
+        QTest::newRow("pm-only")
+            << QString("pm") << QString("ap") << QDateTime(defDate, QTime(12, 0));
+        QTest::newRow("date-only")
+            << QString("10 Oct 10") << QString("dd MMM yy") << QDate(1910, 10, 10).startOfDay();
+        QTest::newRow("dow-date-only")
+            << QString("Fri December 3 2004") << QString("ddd MMMM d yyyy")
+            << QDate(2004, 12, 3).startOfDay();
+        QTest::newRow("dow-mon-yr-only")
+            << QString("Thu January 2004") << QString("ddd MMMM yyyy")
+            << QDate(2004, 1, 1).startOfDay();
+    }
     QTest::newRow("data1") << QString("1020") << QString("sss") << QDateTime();
-    QTest::newRow("data2")
-        << QString("1010") << QString("sss") << QDateTime(defDate, QTime(0, 0, 10));
     QTest::newRow("data3") << QString("10hello20") << QString("ss'hello'ss") << QDateTime();
     QTest::newRow("data4") << QString("10") << QString("''") << QDateTime();
     QTest::newRow("data5") << QString("10") << QString("'") << QDateTime();
-    QTest::newRow("data6") << QString("pm") << QString("ap") << QDateTime(defDate, QTime(12, 0));
     QTest::newRow("data7") << QString("foo") << QString("ap") << QDateTime();
     // Day non-conflict should not hide earlier year conflict (1963-03-01 was a
     // Friday; asking for Thursday moves this, without conflict, to the 7th):
     QTest::newRow("data8")
         << QString("77 03 1963 Thu") << QString("yy MM yyyy ddd") << QDateTime();
-    QTest::newRow("data9")
-        << QString("101010") << QString("dMyy") << QDate(1910, 10, 10).startOfDay();
-    QTest::newRow("data10")
-        << QString("101010") << QString("dMyy") << QDate(1910, 10, 10).startOfDay();
-    QTest::newRow("data11")
-        << QString("10 Oct 10") << QString("dd MMM yy") << QDate(1910, 10, 10).startOfDay();
-    QTest::newRow("data12")
-        << QString("Fri December 3 2004") << QString("ddd MMMM d yyyy")
-        << QDate(2004, 12, 3).startOfDay();
     QTest::newRow("data13") << QString("30.02.2004") << QString("dd.MM.yyyy") << QDateTime();
     QTest::newRow("data14") << QString("32.01.2004") << QString("dd.MM.yyyy") << QDateTime();
-    QTest::newRow("data15")
-        << QString("Thu January 2004") << QString("ddd MMMM yyyy")
-        << QDate(2004, 1, 1).startOfDay();
     QTest::newRow("zulu-time-with-z-centisec")
         << QString("2005-06-28T07:57:30.01Z") << QString("yyyy-MM-ddThh:mm:ss.zt")
         << QDateTime(QDate(2005, 06, 28), QTime(07, 57, 30, 10), UTC);
@@ -3188,7 +3257,7 @@ void tst_QDateTime::fromStringStringFormat_localTimeZone_data()
         lacksRows = false;
         const bool fullyLocal = ([]() {
             TimeZoneRollback useZone("GMT");
-            return QDateTime::currentDateTime().timeZoneAbbreviation() == u"GMT"_s;
+            return qTzName(0) == u"GMT"_s;
         })();
         QTest::newRow("local-timezone-with-offset:GMT")
             << QByteArrayLiteral("GMT")
@@ -3453,16 +3522,34 @@ void tst_QDateTime::timeZoneAbbreviation()
     if (zoneIsCET) {
         // Time definitely in Standard Time
         QDateTime dt4 = QDate(2013, 1, 1).startOfDay();
+        /* Note that MET is functionally an alias for CET (their zoneinfo files
+           differ only in the first letter of the abbreviations), unlike the
+           various zones that give CET as their abbreviation.
+        */
+        {
+            const auto abbrev = dt4.timeZoneAbbreviation();
+            auto reporter = qScopeGuard([abbrev]() {
+                qDebug() << "Unexpected abbreviation" << abbrev;
+            });
 #ifdef Q_OS_WIN
-        QEXPECT_FAIL("", "Windows only reports long name (QTBUG-32759)", Continue);
+            QEXPECT_FAIL("", "Windows only reports long name (QTBUG-32759)", Continue);
 #endif
-        QCOMPARE(dt4.timeZoneAbbreviation(), QStringLiteral("CET"));
+            QVERIFY(abbrev == u"CET"_s || abbrev == u"MET"_s);
+            reporter.dismiss();
+        }
         // Time definitely in Daylight Time
         QDateTime dt5 = QDate(2013, 6, 1).startOfDay();
+        {
+            const auto abbrev = dt5.timeZoneAbbreviation();
+            auto reporter = qScopeGuard([abbrev]() {
+                qDebug() << "Unexpected abbreviation" << abbrev;
+            });
 #ifdef Q_OS_WIN
-        QEXPECT_FAIL("", "Windows only reports long name (QTBUG-32759)", Continue);
+            QEXPECT_FAIL("", "Windows only reports long name (QTBUG-32759)", Continue);
 #endif
-        QCOMPARE(dt5.timeZoneAbbreviation(), QStringLiteral("CEST"));
+            QVERIFY(abbrev == u"CEST"_s || abbrev == u"MEST"_s);
+            reporter.dismiss();
+        }
     } else {
         qDebug("(Skipped some CET-only tests)");
     }
@@ -4318,7 +4405,7 @@ void tst_QDateTime::range() const
 
 void tst_QDateTime::macTypes()
 {
-#ifndef Q_OS_MAC
+#ifndef Q_OS_DARWIN
     QSKIP("This is a Apple-only test");
 #else
     extern void tst_QDateTime_macTypes(); // in qdatetime_mac.mm
diff --git a/tests/auto/corelib/time/qtimezone/tst_qtimezone.cpp b/tests/auto/corelib/time/qtimezone/tst_qtimezone.cpp
index 5af2919b..54954a8a 100644
--- a/tests/auto/corelib/time/qtimezone/tst_qtimezone.cpp
+++ b/tests/auto/corelib/time/qtimezone/tst_qtimezone.cpp
@@ -507,7 +507,7 @@ void tst_QTimeZone::asBackendZone()
 void tst_QTimeZone::systemZone()
 {
     const QTimeZone zone = QTimeZone::systemTimeZone();
-    QVERIFY(zone.isValid());
+    QVERIFY2(zone.isValid(), "Invalid system zone setting, tests are doomed.");
     QCOMPARE(zone.id(), QTimeZone::systemTimeZoneId());
     QCOMPARE(zone, QTimeZone(QTimeZone::systemTimeZoneId()));
     // Check it behaves the same as local-time:
@@ -777,17 +777,29 @@ void tst_QTimeZone::transitionEachZone()
 
 void tst_QTimeZone::checkOffset_data()
 {
-    QTest::addColumn<QByteArray>("zoneName");
+    QTest::addColumn<QTimeZone>("zone");
     QTest::addColumn<QDateTime>("when");
     QTest::addColumn<int>("netOffset");
     QTest::addColumn<int>("stdOffset");
     QTest::addColumn<int>("dstOffset");
 
+    const QTimeZone UTC = QTimeZone::UTC;
+    QTest::addRow("UTC")
+        << UTC << QDate(1970, 1, 1).startOfDay(UTC) << 0 << 0 << 0;
+    const auto east = QTimeZone::fromSecondsAheadOfUtc(28'800); // 8 hours
+    QTest::addRow("UTC+8")
+        << east << QDate(2000, 2, 29).startOfDay(east) << 28'800 << 28'800 << 0;
+    const auto west = QTimeZone::fromDurationAheadOfUtc(std::chrono::hours{-8});
+    QTest::addRow("UTC-8")
+        << west << QDate(2100, 2, 28).startOfDay(west) << -28'800 << -28'800 << 0;
+
     struct {
         const char *zone, *nick;
         int year, month, day, hour, min, sec;
         int std, dst;
     } table[] = {
+        // Exercise the UTC-backend:
+        { "UTC", "epoch", 1970, 1, 1, 0, 0, 0, 0, 0 },
         // Zone with no transitions (QTBUG-74614, QTBUG-74666, when TZ backend uses minimal data)
         { "Etc/UTC", "epoch", 1970, 1, 1, 0, 0, 0, 0, 0 },
         { "Etc/UTC", "pre_int32", 1901, 12, 13, 20, 45, 51, 0, 0 },
@@ -799,38 +811,40 @@ void tst_QTimeZone::checkOffset_data()
         { "Europe/Kyiv", "summer", 2017, 10, 27, 12, 0, 0, 2 * 3600, 3600 },
         { "Europe/Kyiv", "winter", 2017, 10, 29, 12, 0, 0, 2 * 3600, 0 }
     };
-    bool lacksRows = true;
     for (const auto &entry : table) {
         QTimeZone zone(entry.zone);
         if (zone.isValid()) {
             QTest::addRow("%s@%s", entry.zone, entry.nick)
-                << QByteArray(entry.zone)
+                << zone
                 << QDateTime(QDate(entry.year, entry.month, entry.day),
                              QTime(entry.hour, entry.min, entry.sec), zone)
                 << entry.dst + entry.std << entry.std << entry.dst;
-            lacksRows = false;
         } else {
             qWarning("Skipping %s@%s test as zone is invalid", entry.zone, entry.nick);
         }
     }
-    if (lacksRows)
-        QSKIP("No valid zone info found, skipping test");
 }
 
 void tst_QTimeZone::checkOffset()
 {
-    QFETCH(QByteArray, zoneName);
+    QFETCH(QTimeZone, zone);
     QFETCH(QDateTime, when);
     QFETCH(int, netOffset);
     QFETCH(int, stdOffset);
     QFETCH(int, dstOffset);
 
-    QTimeZone zone(zoneName);
     QVERIFY(zone.isValid()); // It was when _data() added the row !
     QCOMPARE(zone.offsetFromUtc(when), netOffset);
     QCOMPARE(zone.standardTimeOffset(when), stdOffset);
     QCOMPARE(zone.daylightTimeOffset(when), dstOffset);
     QCOMPARE(zone.isDaylightTime(when), dstOffset != 0);
+
+    // Also test offsetData(), which gets all this data in one go:
+    const auto data = zone.offsetData(when);
+    QCOMPARE(data.atUtc, when);
+    QCOMPARE(data.offsetFromUtc, netOffset);
+    QCOMPARE(data.standardTimeOffset, stdOffset);
+    QCOMPARE(data.daylightTimeOffset, dstOffset);
 }
 
 void tst_QTimeZone::availableTimeZoneIds()
@@ -1162,9 +1176,9 @@ void tst_QTimeZone::utcTest()
     QCOMPARE(tz.standardTimeOffset(now), 36000);
     QCOMPARE(tz.daylightTimeOffset(now), 0);
 
-    // Test invalid UTC offset, must be in range -14 to +14 hours
-    int min = -14*60*60;
-    int max = 14*60*60;
+    // Test validity range of UTC offsets:
+    int min = QTimeZone::MinUtcOffsetSecs;
+    int max = QTimeZone::MaxUtcOffsetSecs;
     QCOMPARE(QTimeZone(min - 1).isValid(), false);
     QCOMPARE(QTimeZone(min).isValid(), true);
     QCOMPARE(QTimeZone(min + 1).isValid(), true);
diff --git a/tests/auto/corelib/tools/CMakeLists.txt b/tests/auto/corelib/tools/CMakeLists.txt
index 9bcdc12b..8eec5675 100644
--- a/tests/auto/corelib/tools/CMakeLists.txt
+++ b/tests/auto/corelib/tools/CMakeLists.txt
@@ -46,6 +46,7 @@ add_subdirectory(qset)
 add_subdirectory(qsharedpointer)
 add_subdirectory(qsize)
 add_subdirectory(qsizef)
+add_subdirectory(qspan)
 add_subdirectory(qstl)
 add_subdirectory(qvarlengtharray)
 add_subdirectory(qversionnumber)
diff --git a/tests/auto/corelib/tools/collections/tst_collections.cpp b/tests/auto/corelib/tools/collections/tst_collections.cpp
index b6345ec6..af7a7ec0 100644
--- a/tests/auto/corelib/tools/collections/tst_collections.cpp
+++ b/tests/auto/corelib/tools/collections/tst_collections.cpp
@@ -294,8 +294,8 @@ constexpr inline bool has_prepend_v<QVarLengthArray<T,N>> = false; // deprecated
 
 void tst_Collections::typeinfo()
 {
-    QVERIFY(QTypeInfo<int*>::isPointer);
-    QVERIFY(!QTypeInfo<int>::isPointer);
+    QVERIFY(std::is_pointer_v<int*>);
+    QVERIFY(!std::is_pointer_v<int>);
     QVERIFY(QTypeInfo<QString>::isComplex);
     QVERIFY(!QTypeInfo<int>::isComplex);
 }
diff --git a/tests/auto/corelib/tools/containerapisymmetry/tst_containerapisymmetry.cpp b/tests/auto/corelib/tools/containerapisymmetry/tst_containerapisymmetry.cpp
index 0c92801a..d6839504 100644
--- a/tests/auto/corelib/tools/containerapisymmetry/tst_containerapisymmetry.cpp
+++ b/tests/auto/corelib/tools/containerapisymmetry/tst_containerapisymmetry.cpp
@@ -331,6 +331,18 @@ private Q_SLOTS:
     void resize_QString() { resize_impl<QString>(); }
     void resize_QByteArray() { resize_impl<QByteArray>(); }
 
+private:
+    template <typename Container>
+    void assign_impl() const;
+
+private Q_SLOTS:
+    void assign_std_vector() { assign_impl<std::vector<int>>(); };
+    void assign_std_string() { assign_impl<std::string>(); }
+    void assign_QVarLengthArray() { assign_impl<QVarLengthArray<int, 4>>(); };
+    void assign_QList() { assign_impl<QList<int>>(); }
+    void assign_QByteArray() { assign_impl<QByteArray>(); }
+    void assign_QString() { assign_impl<QString>(); }
+
 private:
     template <typename Container>
     void front_back_impl() const;
@@ -761,6 +773,101 @@ void tst_ContainerApiSymmetry::resize_impl() const
 }
 
 template <typename Container>
+void tst_ContainerApiSymmetry::assign_impl() const
+{
+#define CHECK(Arr, ComparisonData, Sz_n, Sz_e)               \
+    QCOMPARE(Sz_n, Sz_e);                                    \
+    for (const auto &e : Arr)                                \
+        QCOMPARE(e, ComparisonData)                          \
+    /*end*/
+#define RET_CHECK(...)                                           \
+    do {                                                         \
+        if constexpr (std::is_void_v<decltype( __VA_ARGS__ )>) { \
+            /* e.g. std::vector */                               \
+            __VA_ARGS__ ;                                        \
+        } else {                                                 \
+            /* e.g. std::basic_string */                         \
+            auto &&r = __VA_ARGS__ ;                             \
+            QCOMPARE_EQ(&r, &c);                                 \
+        }                                                        \
+    } while (false)                                              \
+    /* end */
+    using V = typename Container::value_type;
+    using S = typename Container::size_type;
+    auto tData = V(65);
+    {
+        // fill version
+        auto c = make<Container>(4);
+        const S oldCapacity = c.capacity();
+        RET_CHECK(c.assign(4, tData));
+        CHECK(c, tData, c.size(), S(4));
+        QCOMPARE_EQ(c.capacity(), oldCapacity);
+
+        tData = V(66);
+        c.assign(8, tData); // may reallocate
+        CHECK(c, tData, c.size(), S(8));
+
+        const S grownCapacity = c.capacity();
+        c.assign(0, tData);
+        CHECK(c, tData, c.size(), S(0));
+        QCOMPARE_EQ(c.capacity(), grownCapacity);
+    }
+    {
+        // range version for non input iterator
+        auto c = make<Container>(4);
+        auto iter = make<Container>(1);
+
+        iter.assign(8, tData);
+        RET_CHECK(c.assign(iter.begin(), iter.end())); // may reallocate
+        CHECK(c, tData, c.size(), S(8));
+
+        const S oldCapacity = c.capacity();
+        c.assign(iter.begin(), iter.begin());
+        CHECK(c, tData, c.size(), S(0));
+        QCOMPARE_EQ(c.capacity(), oldCapacity);
+    }
+    {
+        // range version for input iterator
+        auto c = make<Container>(4);
+        const S oldCapacity = c.capacity();
+
+        std::stringstream ss;
+        ss << tData << ' ' << tData << ' ';
+        RET_CHECK(c.assign(std::istream_iterator<V>{ss}, std::istream_iterator<V>{}));
+        CHECK(c, tData, c.size(), S(2));
+        QCOMPARE_EQ(c.capacity(), oldCapacity);
+
+        ss.str("");
+        ss.clear();
+        tData = V(66);
+        ss << tData << ' ' << tData << ' ' << tData << ' ' << tData << ' ';
+        c.assign(std::istream_iterator<V>{ss}, std::istream_iterator<V>{});
+        CHECK(c, tData, c.size(), S(4));
+        QCOMPARE_EQ(c.capacity(), oldCapacity);
+
+        ss.str("");
+        ss.clear();
+        tData = V(67);
+        ss << tData << ' ' << tData << ' ' << tData << ' ' << tData << ' '
+           << tData << ' ' << tData << ' ' << tData << ' ';
+        c.assign(std::istream_iterator<V>{ss}, std::istream_iterator<V>{}); // may reallocate
+        CHECK(c, tData, c.size(), S(7));
+    }
+    {
+        // initializer-list version
+        auto c = make<Container>(4);
+        const S oldCapacity = c.capacity();
+        std::initializer_list<V> list = {tData, tData, tData};
+        RET_CHECK(c.assign(list));
+        CHECK(c, tData, c.size(), S(3));
+        QCOMPARE_EQ(c.capacity(), oldCapacity);
+    }
+
+#undef RET_CHECK
+#undef CHECK
+}
+
+template<typename Container>
 void tst_ContainerApiSymmetry::front_back_impl() const
 {
     using V = typename Container::value_type;
diff --git a/tests/auto/corelib/tools/qarraydata/tst_qarraydata.cpp b/tests/auto/corelib/tools/qarraydata/tst_qarraydata.cpp
index 987cee03..c20f2af6 100644
--- a/tests/auto/corelib/tools/qarraydata/tst_qarraydata.cpp
+++ b/tests/auto/corelib/tools/qarraydata/tst_qarraydata.cpp
@@ -483,7 +483,7 @@ void tst_QArrayData::allocate()
         keeper.headers.append(data);
 
         if (grow)
-            QVERIFY(data->allocatedCapacity() > capacity);
+            QCOMPARE_GE(data->allocatedCapacity(), capacity);
         else
             QCOMPARE(data->allocatedCapacity(), capacity);
 
diff --git a/tests/auto/corelib/tools/qcommandlineparser/tst_qcommandlineparser.cpp b/tests/auto/corelib/tools/qcommandlineparser/tst_qcommandlineparser.cpp
index 62524402..a5369267 100644
--- a/tests/auto/corelib/tools/qcommandlineparser/tst_qcommandlineparser.cpp
+++ b/tests/auto/corelib/tools/qcommandlineparser/tst_qcommandlineparser.cpp
@@ -553,7 +553,7 @@ void tst_QCommandLineParser::testVersionOption()
 static const char expectedOptionsHelp[] =
         "Options:\n"
         "  -h, --help                  Displays help on commandline options.\n"
-        "  --help-all                  Displays help including Qt specific options.\n"
+        "  --help-all                  Displays help, including generic Qt options.\n"
         "  -v, --version               Displays version information.\n"
         "  --load <url>                Load file from URL.\n"
         "  -o, --output <file>         Set output file.\n"
diff --git a/tests/auto/corelib/tools/qexplicitlyshareddatapointer/tst_qexplicitlyshareddatapointer.cpp b/tests/auto/corelib/tools/qexplicitlyshareddatapointer/tst_qexplicitlyshareddatapointer.cpp
index 95c2fe61..e006d42f 100644
--- a/tests/auto/corelib/tools/qexplicitlyshareddatapointer/tst_qexplicitlyshareddatapointer.cpp
+++ b/tests/auto/corelib/tools/qexplicitlyshareddatapointer/tst_qexplicitlyshareddatapointer.cpp
@@ -223,4 +223,3 @@ void tst_QExplicitlySharedDataPointer::swap() const
 QTEST_MAIN(tst_QExplicitlySharedDataPointer)
 
 #include "tst_qexplicitlyshareddatapointer.moc"
-// vim: et:ts=4:sw=4:sts=4
diff --git a/tests/auto/corelib/tools/qlist/tst_qlist.cpp b/tests/auto/corelib/tools/qlist/tst_qlist.cpp
index 482079b0..2b910e2a 100644
--- a/tests/auto/corelib/tools/qlist/tst_qlist.cpp
+++ b/tests/auto/corelib/tools/qlist/tst_qlist.cpp
@@ -231,6 +231,16 @@ private slots:
     void appendCustom() const { append<Custom>(); }
     void appendRvalue() const;
     void appendList() const;
+    void assignEmpty() const;
+    void assignInt() const { assign<int>(); }
+    void assignMovable() const { assign<Movable>(); }
+    void assignCustom() const { assign<Custom>(); }
+    void assignUsesPrependBuffer_int_data() { assignUsesPrependBuffer_data(); }
+    void assignUsesPrependBuffer_int() const { assignUsesPrependBuffer<int>(); }
+    void assignUsesPrependBuffer_Movable_data() { assignUsesPrependBuffer_data(); }
+    void assignUsesPrependBuffer_Movable() const { assignUsesPrependBuffer<Movable>(); }
+    void assignUsesPrependBuffer_Custom_data() { assignUsesPrependBuffer_data(); }
+    void assignUsesPrependBuffer_Custom() const { assignUsesPrependBuffer<Custom>(); }
     void at() const;
     void capacityInt() const { capacity<int>(); }
     void capacityMovable() const { capacity<Movable>(); }
@@ -396,6 +406,9 @@ private:
     template<typename T> void testAssignment() const;
     template<typename T> void add() const;
     template<typename T> void append() const;
+    template<typename T> void assign() const;
+    void assignUsesPrependBuffer_data() const;
+    template<typename T> void assignUsesPrependBuffer() const;
     template<typename T> void assignFromInitializerList() const;
     template<typename T> void capacity() const;
     template<typename T> void clear() const;
@@ -750,6 +763,162 @@ void tst_QList::append() const
     }
 }
 
+void tst_QList::assignEmpty() const
+{
+    // Test that the realloc branch in assign(it, it) doesn't crash.
+    using T = int;
+    QList<T> list;
+    QList<T> ref1 = list;
+    QVERIFY(list.d.needsDetach());
+    list.assign(list.begin(), list.begin());
+
+#if !defined Q_OS_QNX // QNX has problems with the empty istream_iterator
+    auto empty = std::istream_iterator<T>{};
+    list.squeeze();
+    QCOMPARE_EQ(list.capacity(), 0);
+    ref1 = list;
+    QVERIFY(list.d.needsDetach());
+    list.assign(empty, empty);
+#endif
+}
+
+template <typename T>
+void tst_QList::assign() const
+{
+    TST_QLIST_CHECK_LEAKS(T)
+    {
+        QList<T> myvec;
+        myvec.assign(2, T_FOO);
+        QVERIFY(myvec.isDetached());
+        QCOMPARE(myvec, QList<T>() << T_FOO << T_FOO);
+
+        QList<T> myvecCopy = myvec;
+        QVERIFY(!myvec.isDetached());
+        QVERIFY(!myvecCopy.isDetached());
+        QVERIFY(myvec.isSharedWith(myvecCopy));
+        QVERIFY(myvecCopy.isSharedWith(myvec));
+
+        myvec.assign(3, T_BAR);
+        QCOMPARE(myvec, QList<T>() << T_BAR << T_BAR << T_BAR);
+        QVERIFY(myvec.isDetached());
+        QVERIFY(myvecCopy.isDetached());
+        QVERIFY(!myvec.isSharedWith(myvecCopy));
+        QVERIFY(!myvecCopy.isSharedWith(myvec));
+    }
+    {
+        QList<T> myvec;
+        myvec.assign(4, T_FOO);
+        QVERIFY(myvec.isDetached());
+        QCOMPARE(myvec, QList<T>() << T_FOO << T_FOO << T_FOO << T_FOO);
+
+        QList<T> myvecCopy = myvec;
+        QVERIFY(!myvec.isDetached());
+        QVERIFY(!myvecCopy.isDetached());
+        QVERIFY(myvec.isSharedWith(myvecCopy));
+        QVERIFY(myvecCopy.isSharedWith(myvec));
+
+        myvecCopy.assign(myvec.begin(), myvec.begin() + 2);
+        QVERIFY(myvec.isDetached());
+        QVERIFY(myvecCopy.isDetached());
+        QVERIFY(!myvec.isSharedWith(myvecCopy));
+        QVERIFY(!myvecCopy.isSharedWith(myvec));
+        QCOMPARE(myvecCopy, QList<T>() << T_FOO << T_FOO);
+    }
+}
+
+inline namespace Scenarios {
+Q_NAMESPACE
+enum ListState {
+    UnsharedList,
+    SharedList,
+};
+Q_ENUM_NS(ListState)
+enum RelationWithPrependBuffer {
+    FitsIntoFreeSpaceAtBegin,
+    FitsFreeSpaceAtBeginExactly,
+    ExceedsFreeSpaceAtBegin,
+    FitsFreeSpaceAtBeginPlusSizeExactly,
+    FullCapacity,
+};
+Q_ENUM_NS(RelationWithPrependBuffer)
+} // namespace Scenarios
+
+void tst_QList::assignUsesPrependBuffer_data() const
+{
+    QTest::addColumn<ListState>("listState");
+    QTest::addColumn<RelationWithPrependBuffer>("relationWithPrependBuffer");
+
+    const auto sme = QMetaEnum::fromType<ListState>();
+    const auto rme = QMetaEnum::fromType<RelationWithPrependBuffer>();
+
+    for (int i = 0, s = sme.value(i); s != -1; s = sme.value(++i)) {
+        for (int j = 0, r = rme.value(j); r != -1; r = rme.value(++j)) {
+            QTest::addRow("%s-%s", sme.key(i), rme.key(j))
+                << ListState(s) << RelationWithPrependBuffer(r);
+        }
+    }
+}
+
+template <typename T>
+void tst_QList::assignUsesPrependBuffer() const
+{
+    QFETCH(const ListState, listState);
+    QFETCH(const RelationWithPrependBuffer, relationWithPrependBuffer);
+
+    const auto capBegin = [](const QList<T> &l) {
+        return l.begin() - l.d.freeSpaceAtBegin();
+    };
+    const auto capEnd = [](const QList<T> &l) {
+        return l.end() + l.d.freeSpaceAtEnd();
+    };
+
+    TST_QLIST_CHECK_LEAKS(T)
+    {
+        // Test the prepend optimization.
+        QList<T> withFreeSpaceAtBegin(16, T_FOO);
+        // try at most 100 times to create freeSpaceAtBegin():
+        for (int i = 0; i < 100 && withFreeSpaceAtBegin.d.freeSpaceAtBegin() < 2; ++i)
+             withFreeSpaceAtBegin.prepend(T_FOO);
+        QCOMPARE_GT(withFreeSpaceAtBegin.d.freeSpaceAtBegin(), 1);
+
+        auto c = [&] {
+            switch (listState) {
+            case UnsharedList: return std::move(withFreeSpaceAtBegin);
+            case SharedList:   return withFreeSpaceAtBegin;
+            }
+            Q_UNREACHABLE_RETURN(withFreeSpaceAtBegin);
+        }();
+
+        const auto n = [&] () -> qsizetype {
+            switch (relationWithPrependBuffer) {
+            case FitsIntoFreeSpaceAtBegin:
+                return qsizetype(1);
+            case FitsFreeSpaceAtBeginExactly:
+                return c.d.freeSpaceAtBegin();
+            case ExceedsFreeSpaceAtBegin:
+                return c.d.freeSpaceAtBegin() + 1;
+            case FitsFreeSpaceAtBeginPlusSizeExactly:
+                return c.d.freeSpaceAtBegin() + c.size();
+            case FullCapacity:
+                return c.capacity();
+            };
+            Q_UNREACHABLE_RETURN(0);
+        }();
+
+        const auto oldCapBegin = capBegin(c);
+        const auto oldCapEnd = capEnd(c);
+
+        const std::vector v(n, T_BAR);
+        c.assign(v.begin(), v.end());
+        QCOMPARE_EQ(c.d.freeSpaceAtBegin(), 0); // we used the prepend-buffer
+        if (listState != SharedList) {
+            // check that we didn't reallocate
+            QCOMPARE_EQ(capBegin(c), oldCapBegin);
+            QCOMPARE_EQ(capEnd(c), oldCapEnd);
+        }
+    }
+}
+
 void tst_QList::appendRvalue() const
 {
     QList<QString> v;
@@ -941,6 +1110,7 @@ void tst_QList::appendList() const
         // Using operators
         // <<
         QList<ConstructionCounted> v6;
+        v6.reserve(4);
         v6 << (QList<ConstructionCounted>() << 1 << 2);
         v6 << (QList<ConstructionCounted>() << 3 << 4);
         QCOMPARE(v6, expectedFour);
@@ -3613,7 +3783,7 @@ void tst_QList::stability_append() const
         std::generate(v.begin(), v.end(), [&k]() { return SimpleValue<T>::at(k++); });
         QList<T> src(1, SimpleValue<T>::at(0));
         v.append(src.begin(), src.end());
-        QVERIFY(v.size() < v.capacity());
+        QCOMPARE_LE(v.size(), v.capacity());
 
         for (int i = 0; i < v.capacity() - v.size(); ++i) {
             auto [copy, reference] = qlistCopyAndReferenceFromRange(v.begin(), v.end());
diff --git a/tests/auto/corelib/tools/qmargins/tst_qmargins.cpp b/tests/auto/corelib/tools/qmargins/tst_qmargins.cpp
index c99b3d6e..4b49d152 100644
--- a/tests/auto/corelib/tools/qmargins/tst_qmargins.cpp
+++ b/tests/auto/corelib/tools/qmargins/tst_qmargins.cpp
@@ -1,6 +1,35 @@
 // Copyright (C) 2022 The Qt Company Ltd.
 // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only WITH Qt-GPL-exception-1.0
 
+#include <QMargins>
+#ifdef QVARIANT_H
+# error "This test requires qmargins.h to not include qvariant.h"
+#endif
+
+// don't assume <type_traits>
+template <typename T, typename U>
+constexpr inline bool my_is_same_v = false;
+template <typename T>
+constexpr inline bool my_is_same_v<T, T> = true;
+
+#define CHECK(cvref) \
+    static_assert(my_is_same_v<decltype(get<0>(std::declval<QMargins cvref >())), int cvref >); \
+    static_assert(my_is_same_v<decltype(get<1>(std::declval<QMargins cvref >())), int cvref >); \
+    static_assert(my_is_same_v<decltype(get<2>(std::declval<QMargins cvref >())), int cvref >); \
+    static_assert(my_is_same_v<decltype(get<3>(std::declval<QMargins cvref >())), int cvref >); \
+    \
+    static_assert(my_is_same_v<decltype(get<0>(std::declval<QMarginsF cvref >())), qreal cvref >); \
+    static_assert(my_is_same_v<decltype(get<1>(std::declval<QMarginsF cvref >())), qreal cvref >); \
+    static_assert(my_is_same_v<decltype(get<2>(std::declval<QMarginsF cvref >())), qreal cvref >); \
+    static_assert(my_is_same_v<decltype(get<3>(std::declval<QMarginsF cvref >())), qreal cvref >)
+
+CHECK(&);
+CHECK(const &);
+CHECK(&&);
+CHECK(const &&);
+
+#undef CHECK
+
 #include <QTest>
 #include <qmargins.h>
 
diff --git a/tests/auto/corelib/tools/qmessageauthenticationcode/tst_qmessageauthenticationcode.cpp b/tests/auto/corelib/tools/qmessageauthenticationcode/tst_qmessageauthenticationcode.cpp
index 294d4aa8..c49cd538 100644
--- a/tests/auto/corelib/tools/qmessageauthenticationcode/tst_qmessageauthenticationcode.cpp
+++ b/tests/auto/corelib/tools/qmessageauthenticationcode/tst_qmessageauthenticationcode.cpp
@@ -20,6 +20,8 @@ private slots:
     void result_incremental();
     void addData_overloads_data();
     void addData_overloads();
+    void move();
+    void swap();
 };
 
 Q_DECLARE_METATYPE(QCryptographicHash::Algorithm)
@@ -147,11 +149,11 @@ void tst_QMessageAuthenticationCode::result()
 
     QMessageAuthenticationCode mac(algo, key);
     mac.addData(message);
-    QByteArray result = mac.result();
+    QByteArrayView resultView = mac.resultView();
 
-    QCOMPARE(result, code);
+    QCOMPARE(resultView, code);
 
-    result = QMessageAuthenticationCode::hash(message, key, algo);
+    const auto result = QMessageAuthenticationCode::hash(message, key, algo);
     QCOMPARE(result, code);
 }
 
@@ -176,7 +178,7 @@ void tst_QMessageAuthenticationCode::result_incremental()
     QMessageAuthenticationCode mac(algo, key);
     mac.addData(leftPart);
     mac.addData(rightPart);
-    QByteArray result = mac.result();
+    QByteArrayView result = mac.resultView();
 
     QCOMPARE(result, code);
 }
@@ -198,7 +200,7 @@ void tst_QMessageAuthenticationCode::addData_overloads()
         QMessageAuthenticationCode mac(algo);
         mac.setKey(key);
         mac.addData(message.constData(), message.size());
-        QByteArray result = mac.result();
+        QByteArrayView result = mac.resultView();
 
         QCOMPARE(result, code);
     }
@@ -210,12 +212,55 @@ void tst_QMessageAuthenticationCode::addData_overloads()
         QMessageAuthenticationCode mac(algo);
         mac.setKey(key);
         QVERIFY(mac.addData(&buffer));
-        QByteArray result = mac.result();
+        QByteArrayView result = mac.resultView();
         buffer.close();
 
         QCOMPARE(result, code);
     }
 }
 
+void tst_QMessageAuthenticationCode::move()
+{
+    const QByteArray key = "123";
+
+    QMessageAuthenticationCode src(QCryptographicHash::Sha1, key);
+    src.addData("a");
+
+    // move constructor
+    auto intermediary = std::move(src);
+    intermediary.addData("b");
+
+    // move assign operator
+    QMessageAuthenticationCode dst(QCryptographicHash::Sha256, key);
+    dst.addData("no effect on the end result");
+    dst = std::move(intermediary);
+    dst.addData("c");
+
+    QCOMPARE(dst.resultView(),
+             QMessageAuthenticationCode::hash("abc", key, QCryptographicHash::Sha1));
+}
+
+void tst_QMessageAuthenticationCode::swap()
+{
+    const QByteArray key1 = "123";
+    const QByteArray key2 = "abcdefg";
+
+    QMessageAuthenticationCode mac1(QCryptographicHash::Sha1,   key1);
+    QMessageAuthenticationCode mac2(QCryptographicHash::Sha256, key2);
+
+    mac1.addData("da");
+    mac2.addData("te");
+
+    mac1.swap(mac2);
+
+    mac2.addData("ta");
+    mac1.addData("st");
+
+    QCOMPARE(mac2.resultView(),
+             QMessageAuthenticationCode::hash("data", key1, QCryptographicHash::Sha1));
+    QCOMPARE(mac1.resultView(),
+             QMessageAuthenticationCode::hash("test", key2, QCryptographicHash::Sha256));
+}
+
 QTEST_MAIN(tst_QMessageAuthenticationCode)
 #include "tst_qmessageauthenticationcode.moc"
diff --git a/tests/auto/corelib/tools/qpair/tst_qpair.cpp b/tests/auto/corelib/tools/qpair/tst_qpair.cpp
index dc20c793..d3a70699 100644
--- a/tests/auto/corelib/tools/qpair/tst_qpair.cpp
+++ b/tests/auto/corelib/tools/qpair/tst_qpair.cpp
@@ -65,7 +65,7 @@ static_assert( QTypeInfo<QPairPM>::isRelocatable );
 static_assert(!QTypeInfo<QPairPP>::isComplex);
 static_assert( QTypeInfo<QPairPP>::isRelocatable );
 
-static_assert(!QTypeInfo<QPairPP>::isPointer);
+static_assert(!std::is_pointer_v<QPairPP>);
 
 
 void tst_QPair::pairOfReferences()
diff --git a/tests/auto/corelib/tools/qpoint/tst_qpoint.cpp b/tests/auto/corelib/tools/qpoint/tst_qpoint.cpp
index c183f79f..76a4ccc0 100644
--- a/tests/auto/corelib/tools/qpoint/tst_qpoint.cpp
+++ b/tests/auto/corelib/tools/qpoint/tst_qpoint.cpp
@@ -1,6 +1,28 @@
 // Copyright (C) 2022 The Qt Company Ltd.
 // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only WITH Qt-GPL-exception-1.0
 
+#include <QPoint>
+#ifdef QVARIANT_H
+# error "This test requires qpoint.h to not include qvariant.h"
+#endif
+
+// don't assume <type_traits>
+template <typename T, typename U>
+constexpr inline bool my_is_same_v = false;
+template <typename T>
+constexpr inline bool my_is_same_v<T, T> = true;
+
+#define CHECK(cvref) \
+    static_assert(my_is_same_v<decltype(get<0>(std::declval<QPoint cvref >())), int cvref >); \
+    static_assert(my_is_same_v<decltype(get<1>(std::declval<QPoint cvref >())), int cvref >)
+
+CHECK(&);
+CHECK(const &);
+CHECK(&&);
+CHECK(const &&);
+
+#undef CHECK
+
 #include <QTest>
 #include <QBuffer>
 
diff --git a/tests/auto/corelib/tools/qpointf/tst_qpointf.cpp b/tests/auto/corelib/tools/qpointf/tst_qpointf.cpp
index a6bd0a97..14953039 100644
--- a/tests/auto/corelib/tools/qpointf/tst_qpointf.cpp
+++ b/tests/auto/corelib/tools/qpointf/tst_qpointf.cpp
@@ -1,6 +1,28 @@
 // Copyright (C) 2016 The Qt Company Ltd.
 // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only WITH Qt-GPL-exception-1.0
 
+#include <QPointF>
+#ifdef QVARIANT_H
+# error "This test requires qpoint.h to not include qvariant.h"
+#endif
+
+// don't assume <type_traits>
+template <typename T, typename U>
+constexpr inline bool my_is_same_v = false;
+template <typename T>
+constexpr inline bool my_is_same_v<T, T> = true;
+
+#define CHECK(cvref) \
+    static_assert(my_is_same_v<decltype(get<0>(std::declval<QPointF cvref >())), qreal cvref >); \
+    static_assert(my_is_same_v<decltype(get<1>(std::declval<QPointF cvref >())), qreal cvref >)
+
+CHECK(&);
+CHECK(const &);
+CHECK(&&);
+CHECK(const &&);
+
+#undef CHECK
+
 #include <QTest>
 #include <QBuffer>
 
diff --git a/tests/auto/corelib/tools/qsharedpointer/externaltests.cpp b/tests/auto/corelib/tools/qsharedpointer/externaltests.cpp
index b97c84da..e35ac98a 100644
--- a/tests/auto/corelib/tools/qsharedpointer/externaltests.cpp
+++ b/tests/auto/corelib/tools/qsharedpointer/externaltests.cpp
@@ -55,7 +55,7 @@ namespace QTest {
     {
         if (process.state() == QProcess::Running) {
             process.terminate();
-            QThread::msleep(20);
+            QThread::sleep(std::chrono::milliseconds{20});
             if (process.state() == QProcess::Running)
                 process.kill();
         }
diff --git a/tests/auto/corelib/tools/qsharedpointer/tst_qsharedpointer.cpp b/tests/auto/corelib/tools/qsharedpointer/tst_qsharedpointer.cpp
index f455d764..4b1354dc 100644
--- a/tests/auto/corelib/tools/qsharedpointer/tst_qsharedpointer.cpp
+++ b/tests/auto/corelib/tools/qsharedpointer/tst_qsharedpointer.cpp
@@ -1982,7 +1982,7 @@ class StrongThread: public QThread
 protected:
     void run() override
     {
-        usleep(QRandomGenerator::global()->bounded(2000));
+        sleep(std::chrono::microseconds{QRandomGenerator::global()->bounded(2000)});
         ptr->ref();
         ptr.clear();
     }
@@ -1995,7 +1995,7 @@ class WeakThread: public QThread
 protected:
     void run() override
     {
-        usleep(QRandomGenerator::global()->bounded(2000));
+        sleep(std::chrono::microseconds{QRandomGenerator::global()->bounded(2000)});
         QSharedPointer<ThreadData> ptr = weak;
         if (ptr)
             ptr->ref();
diff --git a/tests/auto/corelib/tools/qsize/tst_qsize.cpp b/tests/auto/corelib/tools/qsize/tst_qsize.cpp
index 54ffd9fc..77198c45 100644
--- a/tests/auto/corelib/tools/qsize/tst_qsize.cpp
+++ b/tests/auto/corelib/tools/qsize/tst_qsize.cpp
@@ -1,6 +1,28 @@
 // Copyright (C) 2022 The Qt Company Ltd.
 // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only WITH Qt-GPL-exception-1.0
 
+#include <QSize>
+#ifdef QVARIANT_H
+# error "This test requires qsize.h to not include qvariant.h"
+#endif
+
+// don't assume <type_traits>
+template <typename T, typename U>
+constexpr inline bool my_is_same_v = false;
+template <typename T>
+constexpr inline bool my_is_same_v<T, T> = true;
+
+#define CHECK(cvref) \
+    static_assert(my_is_same_v<decltype(get<0>(std::declval<QSize cvref >())), int cvref >); \
+    static_assert(my_is_same_v<decltype(get<1>(std::declval<QSize cvref >())), int cvref >)
+
+CHECK(&);
+CHECK(const &);
+CHECK(&&);
+CHECK(const &&);
+
+#undef CHECK
+
 #include <QTest>
 #include <qsize.h>
 
diff --git a/tests/auto/corelib/tools/qsizef/tst_qsizef.cpp b/tests/auto/corelib/tools/qsizef/tst_qsizef.cpp
index 0a53de68..018f929c 100644
--- a/tests/auto/corelib/tools/qsizef/tst_qsizef.cpp
+++ b/tests/auto/corelib/tools/qsizef/tst_qsizef.cpp
@@ -1,6 +1,28 @@
 // Copyright (C) 2016 The Qt Company Ltd.
 // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only WITH Qt-GPL-exception-1.0
 
+#include <QSizeF>
+#ifdef QVARIANT_H
+# error "This test requires qsize.h to not include qvariant.h"
+#endif
+
+// don't assume <type_traits>
+template <typename T, typename U>
+constexpr inline bool my_is_same_v = false;
+template <typename T>
+constexpr inline bool my_is_same_v<T, T> = true;
+
+#define CHECK(cvref) \
+    static_assert(my_is_same_v<decltype(get<0>(std::declval<QSizeF cvref >())), qreal cvref >); \
+    static_assert(my_is_same_v<decltype(get<1>(std::declval<QSizeF cvref >())), qreal cvref >)
+
+CHECK(&);
+CHECK(const &);
+CHECK(&&);
+CHECK(const &&);
+
+#undef CHECK
+
 #include <QTest>
 #include <qsize.h>
 
diff --git a/tests/auto/corelib/tools/qspan/CMakeLists.txt b/tests/auto/corelib/tools/qspan/CMakeLists.txt
new file mode 100644
index 00000000..f29179ef
--- /dev/null
+++ b/tests/auto/corelib/tools/qspan/CMakeLists.txt
@@ -0,0 +1,9 @@
+# Copyright (C) 2023 The Qt Company Ltd.
+# SPDX-License-Identifier: BSD-3-Clause
+
+qt_internal_add_test(tst_qspan
+    SOURCES
+        tst_qspan.cpp
+    LIBRARIES
+        Qt::CorePrivate
+)
diff --git a/tests/auto/corelib/tools/qspan/tst_qspan.cpp b/tests/auto/corelib/tools/qspan/tst_qspan.cpp
new file mode 100644
index 00000000..aa47c7a0
--- /dev/null
+++ b/tests/auto/corelib/tools/qspan/tst_qspan.cpp
@@ -0,0 +1,363 @@
+// Copyright (C) 2023 The Qt Company Ltd.
+// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
+
+#include <private/qspan_p.h>
+
+#include <QList>
+#include <QTest>
+
+#include <algorithm>
+#include <array>
+#include <vector>
+
+namespace {
+
+struct NotNothrowMovable {
+    NotNothrowMovable(NotNothrowMovable &&) noexcept(false) {};
+    NotNothrowMovable &operator=(NotNothrowMovable &&) noexcept(false) { return *this; };
+};
+static_assert(!std::is_nothrow_move_constructible_v<NotNothrowMovable>);
+static_assert(!std::is_nothrow_move_assignable_v<NotNothrowMovable>);
+
+} // unnamed namespace
+
+//
+// QSpan is nothrow movable even if the payload type is not:
+//
+static_assert(std::is_nothrow_move_constructible_v<QSpan<NotNothrowMovable>>);
+static_assert(std::is_nothrow_move_constructible_v<QSpan<NotNothrowMovable, 42>>);
+static_assert(std::is_nothrow_move_constructible_v<QSpan<NotNothrowMovable, 0>>);
+
+static_assert(std::is_nothrow_move_assignable_v<QSpan<NotNothrowMovable>>);
+static_assert(std::is_nothrow_move_assignable_v<QSpan<NotNothrowMovable, 42>>);
+static_assert(std::is_nothrow_move_assignable_v<QSpan<NotNothrowMovable, 0>>);
+
+//
+// All QSpans are trivially destructible and trivially copyable:
+//
+static_assert(std::is_trivially_copyable_v<QSpan<NotNothrowMovable>>);
+static_assert(std::is_trivially_copyable_v<QSpan<NotNothrowMovable, 42>>);
+static_assert(std::is_trivially_copyable_v<QSpan<NotNothrowMovable, 0>>);
+
+static_assert(std::is_trivially_destructible_v<QSpan<NotNothrowMovable>>);
+static_assert(std::is_trivially_destructible_v<QSpan<NotNothrowMovable, 42>>);
+static_assert(std::is_trivially_destructible_v<QSpan<NotNothrowMovable, 0>>);
+
+//
+// Fixed-size QSpans implicitly convert to variable-sized ones:
+//
+static_assert(std::is_convertible_v<QSpan<int, 42>, QSpan<int>>);
+static_assert(std::is_convertible_v<QSpan<int, 0>, QSpan<int>>);
+
+//
+// Mutable spans implicitly convert to read-only ones, but not vice versa:
+//
+static_assert(std::is_convertible_v<QSpan<int>, QSpan<const int>>);
+static_assert(std::is_convertible_v<QSpan<int, 42>, QSpan<const int, 42>>);
+static_assert(std::is_convertible_v<QSpan<int, 0>, QSpan<const int, 0>>);
+
+static_assert(!std::is_convertible_v<QSpan<const int>, QSpan<int>>);
+static_assert(!std::is_convertible_v<QSpan<const int, 42>, QSpan<int, 42>>);
+static_assert(!std::is_convertible_v<QSpan<const int, 0>, QSpan<int, 0>>);
+
+class tst_QSpan : public QObject
+{
+    Q_OBJECT
+public:
+    using QObject::QObject;
+
+private Q_SLOTS:
+    void onlyZeroExtentSpansHaveDefaultCtors() const;
+    void zeroExtentSpansMaintainADataPointer() const;
+    void fromArray() const;
+    void fromStdArray() const;
+    void fromZeroSizeStdArray() const;
+    void fromStdVector() const;
+    void fromQList() const;
+
+private:
+    template <typename T, std::size_t N>
+    void check_nonempty_span(QSpan<T, N>, qsizetype expectedSize) const;
+    template <typename T, std::size_t N>
+    void check_empty_span_incl_subspans(QSpan<T, N>) const;
+    template <typename T, std::size_t N>
+    void check_empty_span(QSpan<T, N>) const;
+    template <typename T, std::size_t N>
+    void check_null_span(QSpan<T, N>) const;
+
+    template <std::size_t ExpectedExtent, typename C>
+    void from_container_impl(C &&c) const;
+    template <typename C>
+    void from_variable_size_container_impl(C &&c) const;
+};
+
+#define RETURN_IF_FAILED() \
+    do { if (QTest::currentTestFailed()) return; } while (false)
+
+void tst_QSpan::onlyZeroExtentSpansHaveDefaultCtors() const
+{
+    static_assert(std::is_nothrow_default_constructible_v<QSpan<int, 0>>);
+    static_assert(std::is_nothrow_default_constructible_v<QSpan<const int, 0>>);
+    static_assert(std::is_nothrow_default_constructible_v<QSpan<int>>);
+    static_assert(std::is_nothrow_default_constructible_v<QSpan<const int, 0>>);
+
+    QSpan<int, 0> si;
+    check_null_span(si);
+    RETURN_IF_FAILED();
+
+    QSpan<const int, 0> sci;
+    check_null_span(sci);
+    RETURN_IF_FAILED();
+
+    QSpan<int> sdi;
+    check_null_span(sdi);
+    RETURN_IF_FAILED();
+
+    QSpan<const int> sdci;
+    check_null_span(sdci);
+    RETURN_IF_FAILED();
+
+    static_assert(!std::is_default_constructible_v<QSpan<int, 1>>);
+    static_assert(!std::is_default_constructible_v<QSpan<const int, 42>>);
+}
+
+void tst_QSpan::zeroExtentSpansMaintainADataPointer() const
+{
+    int i;
+    QSpan<int, 0> si{&i, 0};
+    QCOMPARE(si.data(), &i);
+    check_empty_span_incl_subspans(si);
+    RETURN_IF_FAILED();
+
+    QSpan<const int, 0> sci{&i, 0};
+    QCOMPARE(sci.data(), &i);
+    check_empty_span_incl_subspans(sci);
+    RETURN_IF_FAILED();
+
+    QSpan<int, 0> sdi{&i, 0};
+    QCOMPARE(sdi.data(), &i);
+    check_empty_span_incl_subspans(sdi);
+    RETURN_IF_FAILED();
+
+    QSpan<const int, 0> sdci{&i, 0};
+    QCOMPARE(sdci.data(), &i);
+    check_empty_span_incl_subspans(sdci);
+    RETURN_IF_FAILED();
+}
+
+template <typename T, std::size_t N>
+void tst_QSpan::check_nonempty_span(QSpan<T, N> s, qsizetype expectedSize) const
+{
+    static_assert(N > 0);
+    QCOMPARE_GT(expectedSize, 0); // otherwise, use check_empty_span!
+
+    QVERIFY(!s.empty());
+    QVERIFY(!s.isEmpty());
+
+    QCOMPARE_EQ(s.size(), expectedSize);
+    QCOMPARE_NE(s.data(), nullptr);
+
+    QCOMPARE_NE(s.begin(), s.end());
+    QCOMPARE_NE(s.rbegin(), s.rend());
+
+    QCOMPARE_EQ(s.end() - s.begin(), s.size());
+    QCOMPARE_EQ(s.rend() - s.rbegin(), s.size());
+
+    QCOMPARE_EQ(std::addressof(s.front()), std::addressof(*s.begin()));
+    QCOMPARE_EQ(std::addressof(s.front()), std::addressof(s[0]));
+    QCOMPARE_EQ(std::addressof(s.back()), std::addressof(*s.rbegin()));
+    QCOMPARE_EQ(std::addressof(s.back()), std::addressof(s[s.size() - 1]));
+
+    // ### more?
+
+    if (expectedSize == 1) {
+        // don't run into Mandates: Offset >= Extent
+        if constexpr (N > 0) { // incl. N == std::dynamic_extent
+            check_empty_span_incl_subspans(s.template subspan<1>());
+            RETURN_IF_FAILED();
+        }
+        check_empty_span_incl_subspans(s.subspan(1));
+        RETURN_IF_FAILED();
+    } else {
+        // don't run into Mandates: Offset >= Extent
+        if constexpr (N > 1) { // incl. N == std::dynamic_extent
+            check_nonempty_span(s.template subspan<1>(), expectedSize - 1);
+            RETURN_IF_FAILED();
+        }
+        check_nonempty_span(s.subspan(1), expectedSize - 1);
+        RETURN_IF_FAILED();
+    }
+}
+
+template <typename T, std::size_t N>
+void tst_QSpan::check_empty_span(QSpan<T, N> s) const
+{
+    QVERIFY(s.empty());
+    QVERIFY(s.isEmpty());
+
+    QCOMPARE_EQ(s.size(), 0);
+
+    QCOMPARE_EQ(s.begin(), s.end());
+    QCOMPARE_EQ(s.rbegin(), s.rend());
+}
+
+template <typename T, std::size_t N>
+void tst_QSpan::check_empty_span_incl_subspans(QSpan<T, N> s) const
+{
+    check_empty_span(s);
+    RETURN_IF_FAILED();
+
+    {
+        const auto fi = s.template first<0>();
+        check_empty_span(fi);
+        RETURN_IF_FAILED();
+        QCOMPARE_EQ(fi.data(), s.data());
+    }
+    {
+        const auto la = s.template last<0>();
+        check_empty_span(la);
+        RETURN_IF_FAILED();
+        QCOMPARE_EQ(la.data(), s.data());
+    }
+    {
+        const auto ss = s.template subspan<0>();
+        check_empty_span(ss);
+        RETURN_IF_FAILED();
+        QCOMPARE_EQ(ss.data(), s.data());
+    }
+    {
+        const auto ss = s.template subspan<0, 0>();
+        check_empty_span(ss);
+        RETURN_IF_FAILED();
+        QCOMPARE_EQ(ss.data(), s.data());
+    }
+
+    {
+        const auto fi = s.first(0);
+        check_empty_span(fi);
+        RETURN_IF_FAILED();
+        QCOMPARE_EQ(fi.data(), s.data());
+    }
+    {
+        const auto la = s.last(0);
+        check_empty_span(la);
+        RETURN_IF_FAILED();
+        QCOMPARE_EQ(la.data(), s.data());
+    }
+    {
+        const auto ss = s.subspan(0);
+        check_empty_span(ss);
+        RETURN_IF_FAILED();
+        QCOMPARE_EQ(ss.data(), s.data());
+    }
+    {
+        const auto ss = s.subspan(0, 0);
+        check_empty_span(ss);
+        RETURN_IF_FAILED();
+        QCOMPARE_EQ(ss.data(), s.data());
+    }
+}
+
+
+template<typename T, std::size_t N>
+void tst_QSpan::check_null_span(QSpan<T, N> s) const
+{
+    QCOMPARE_EQ(s.data(), nullptr);
+    QCOMPARE_EQ(s.begin(), nullptr);
+    QCOMPARE_EQ(s.end(), nullptr);
+    check_empty_span_incl_subspans(s);
+}
+
+template <std::size_t ExpectedExtent, typename C>
+void tst_QSpan::from_container_impl(C &&c) const
+{
+    const auto c_size = qsizetype(QSpanPrivate::adl_size(c));
+    const auto c_data = QSpanPrivate::adl_data(c);
+    {
+        QSpan si = c; // CTAD
+        static_assert(std::is_same_v<decltype(si), QSpan<int, ExpectedExtent>>);
+
+        QCOMPARE_EQ(si.size(), c_size);
+        QCOMPARE_EQ(si.data(), c_data);
+
+        check_nonempty_span(si, c_size);
+        RETURN_IF_FAILED();
+
+        QSpan<const int> sci = c;
+
+        QCOMPARE_EQ(sci.size(), c_size);
+        QCOMPARE_EQ(sci.data(), c_data);
+
+        check_nonempty_span(sci, c_size);
+        RETURN_IF_FAILED();
+    }
+    {
+        QSpan sci = std::as_const(c); // CTAD
+        static_assert(std::is_same_v<decltype(sci), QSpan<const int, ExpectedExtent>>);
+
+        QCOMPARE_EQ(sci.size(), c_size);
+        QCOMPARE_EQ(sci.data(), c_data);
+
+        check_nonempty_span(sci, c_size);
+        RETURN_IF_FAILED();
+    }
+}
+
+template <typename C>
+void tst_QSpan::from_variable_size_container_impl(C &&c) const
+{
+    constexpr auto E = q20::dynamic_extent;
+    from_container_impl<E>(std::forward<C>(c));
+}
+
+void tst_QSpan::fromArray() const
+{
+    int ai[] = {42, 84, 168, 336};
+    from_container_impl<4>(ai);
+}
+
+void tst_QSpan::fromStdArray() const
+{
+    std::array<int, 4> ai = {42, 84, 168, 336};
+    from_container_impl<4>(ai);
+}
+
+void tst_QSpan::fromZeroSizeStdArray() const
+{
+    std::array<int, 0> ai = {};
+    QSpan si = ai; // CTAD
+    static_assert(std::is_same_v<decltype(si), QSpan<int, 0>>);
+    QCOMPARE_EQ(si.data(), ai.data());
+
+    const std::array<int, 0> cai = {};
+    QSpan csi = cai; // CTAD
+    static_assert(std::is_same_v<decltype(csi), QSpan<const int, 0>>);
+    QCOMPARE_EQ(csi.data(), cai.data());
+
+    std::array<const int, 0> aci = {};
+    QSpan sci = aci; // CTAD
+    static_assert(std::is_same_v<decltype(sci), QSpan<const int, 0>>);
+    QCOMPARE_EQ(sci.data(), aci.data());
+
+    std::array<const int, 0> caci = {};
+    QSpan csci = caci; // CTAD
+    static_assert(std::is_same_v<decltype(csci), QSpan<const int, 0>>);
+    QCOMPARE_EQ(csci.data(), caci.data());
+}
+
+void tst_QSpan::fromStdVector() const
+{
+    std::vector<int> vi = {42, 84, 168, 336};
+    from_variable_size_container_impl(vi);
+}
+
+void tst_QSpan::fromQList() const
+{
+    QList<int> li = {42, 84, 168, 336};
+    from_variable_size_container_impl(li);
+}
+
+#undef RETURN_IF_FAILED
+
+QTEST_APPLESS_MAIN(tst_QSpan);
+#include "tst_qspan.moc"
diff --git a/tests/auto/dbus/qdbusabstractinterface/CMakeLists.txt b/tests/auto/dbus/qdbusabstractinterface/CMakeLists.txt
index e074d083..a4bb8269 100644
--- a/tests/auto/dbus/qdbusabstractinterface/CMakeLists.txt
+++ b/tests/auto/dbus/qdbusabstractinterface/CMakeLists.txt
@@ -1,8 +1,6 @@
 # Copyright (C) 2022 The Qt Company Ltd.
 # SPDX-License-Identifier: BSD-3-Clause
 
-add_subdirectory(qpinger)
-
 qt_internal_add_test(tst_qdbusabstractinterface
     SOURCES
         interface.cpp
@@ -21,3 +19,5 @@ qt_internal_extend_target(tst_qdbusabstractinterface
         -i interface.h
 )
 
+add_subdirectory(qpinger)
+add_dependencies(tst_qdbusabstractinterface qpinger)
diff --git a/tests/auto/dbus/qdbusabstractinterface/interface.cpp b/tests/auto/dbus/qdbusabstractinterface/interface.cpp
index 293996b4..e8329722 100644
--- a/tests/auto/dbus/qdbusabstractinterface/interface.cpp
+++ b/tests/auto/dbus/qdbusabstractinterface/interface.cpp
@@ -8,16 +8,9 @@ Interface::Interface()
 {
 }
 
-// Export the sleep function
-// TODO QT5: remove this class, QThread::msleep is now public
-class FriendlySleepyThread : public QThread {
-public:
-    using QThread::msleep;
-};
-
 int Interface::sleepMethod(int msec)
 {
-    FriendlySleepyThread::msleep(msec);
+    QThread::sleep(std::chrono::milliseconds{msec});
     return 42;
 }
 
diff --git a/tests/auto/dbus/qdbusmarshall/CMakeLists.txt b/tests/auto/dbus/qdbusmarshall/CMakeLists.txt
index 275a296a..45b2bd81 100644
--- a/tests/auto/dbus/qdbusmarshall/CMakeLists.txt
+++ b/tests/auto/dbus/qdbusmarshall/CMakeLists.txt
@@ -4,5 +4,6 @@
 if(NOT QT_FEATURE_private_tests)
     return()
 endif()
-add_subdirectory(qpong)
 add_subdirectory(qdbusmarshall)
+add_subdirectory(qpong)
+add_dependencies(tst_qdbusmarshall qpong)
diff --git a/tests/auto/dbus/qdbusmarshall/tst_qdbusmarshall.cpp b/tests/auto/dbus/qdbusmarshall/tst_qdbusmarshall.cpp
index aecc9585..39c88be1 100644
--- a/tests/auto/dbus/qdbusmarshall/tst_qdbusmarshall.cpp
+++ b/tests/auto/dbus/qdbusmarshall/tst_qdbusmarshall.cpp
@@ -1082,7 +1082,7 @@ public:
     }
 };
 
-// mostly the same as qdbusintegrator.cpp:connectionCapabilies
+// mostly the same as qdbusintegrator.cpp:connectionCapabilities
 static bool canSendUnixFd(DBusConnection *connection)
 {
     typedef dbus_bool_t (*can_send_type_t)(DBusConnection *, int);
diff --git a/tests/auto/gui/image/qicon/tst_qicon.cpp b/tests/auto/gui/image/qicon/tst_qicon.cpp
index d408f455..71df9f12 100644
--- a/tests/auto/gui/image/qicon/tst_qicon.cpp
+++ b/tests/auto/gui/image/qicon/tst_qicon.cpp
@@ -552,6 +552,10 @@ void tst_QIcon::availableSizes()
 
 void tst_QIcon::name()
 {
+    const auto reset = qScopeGuard([]{
+        QIcon::setThemeName({});
+        QIcon::setThemeSearchPaths({});
+    });
     {
         // No name if icon does not come from a theme
         QIcon icon(":/image.png");
@@ -629,6 +633,7 @@ void tst_QIcon::task184901_badCache()
 
 void tst_QIcon::fromTheme()
 {
+    const bool abIconFromPlatform = !QIcon::fromTheme("address-book-new").isNull();
     QString firstSearchPath = QLatin1String(":/icons");
     QString secondSearchPath = QLatin1String(":/second_icons");
     QIcon::setThemeSearchPaths(QStringList() << firstSearchPath << secondSearchPath);
@@ -725,7 +730,7 @@ void tst_QIcon::fromTheme()
     // Make sure setting the theme name clears the state
     QIcon::setThemeName("");
     abIcon = QIcon::fromTheme("address-book-new");
-    QVERIFY(abIcon.isNull());
+    QCOMPARE_NE(abIcon.isNull(), abIconFromPlatform);
 
     // Test fallback icon behavior for empty theme names.
     // Can only reliably test this on systems that don't have a
@@ -809,7 +814,7 @@ void tst_QIcon::fromThemeCache()
     QTest::qWait(1000); // wait enough to have a different modification time in seconds
     QVERIFY(QFile(QStringLiteral(":/styles/commonstyle/images/standardbutton-save-16.png"))
         .copy(dir.path() + QLatin1String("/testcache/16x16/actions/button-save.png")));
-    QVERIFY(QFileInfo(cacheName).lastModified() < QFileInfo(dir.path() + QLatin1String("/testcache/16x16/actions")).lastModified());
+    QVERIFY(QFileInfo(cacheName).lastModified(QTimeZone::UTC) < QFileInfo(dir.path() + QLatin1String("/testcache/16x16/actions")).lastModified(QTimeZone::UTC));
     QIcon::setThemeSearchPaths(QStringList() << dir.path()); // reload themes
     QVERIFY(!QIcon::fromTheme("button-open").isNull());
 
@@ -830,7 +835,7 @@ void tst_QIcon::fromThemeCache()
     QCOMPARE(process.exitStatus(), QProcess::NormalExit);
     QCOMPARE(process.exitCode(), 0);
 #endif // QT_CONFIG(process)
-    QVERIFY(QFileInfo(cacheName).lastModified() >= QFileInfo(dir.path() + QLatin1String("/testcache/16x16/actions")).lastModified());
+    QVERIFY(QFileInfo(cacheName).lastModified(QTimeZone::UTC) >= QFileInfo(dir.path() + QLatin1String("/testcache/16x16/actions")).lastModified(QTimeZone::UTC));
     QIcon::setThemeSearchPaths(QStringList() << dir.path()); // reload themes
     QVERIFY(!QIcon::fromTheme("button-open").isNull());
     QVERIFY(!QIcon::fromTheme("button-open-fallback").isNull());
diff --git a/tests/auto/gui/image/qpixmapcache/tst_qpixmapcache.cpp b/tests/auto/gui/image/qpixmapcache/tst_qpixmapcache.cpp
index 7f3ae4c4..e42cdbb7 100644
--- a/tests/auto/gui/image/qpixmapcache/tst_qpixmapcache.cpp
+++ b/tests/auto/gui/image/qpixmapcache/tst_qpixmapcache.cpp
@@ -34,7 +34,9 @@ private slots:
     void find();
     void insert();
     void failedInsertReturnsInvalidKey();
+#if QT_DEPRECATED_SINCE(6, 6)
     void replace();
+#endif
     void remove();
     void clear();
     void pixmapKey();
@@ -120,11 +122,15 @@ void tst_QPixmapCache::setCacheLimit()
     QVERIFY(!QPixmapCache::find(key, p1));
 
     QPixmapCache::setCacheLimit(1000);
+#if QT_DEPRECATED_SINCE(6, 6)
+    QT_WARNING_PUSH
+    QT_WARNING_DISABLE_DEPRECATED
     p1 = new QPixmap(2, 3);
     QVERIFY(!QPixmapCache::replace(key, *p1));
     QVERIFY(!QPixmapCache::find(key, p1));
 
     delete p1;
+#endif // QT_DEPRECATED_SINCE(6, 6)
 
     //Let check if keys are released when the pixmap cache is
     //full or has been flushed.
@@ -317,6 +323,9 @@ void tst_QPixmapCache::failedInsertReturnsInvalidKey()
     QVERIFY(!success);       // QString API
 }
 
+#if QT_DEPRECATED_SINCE(6, 6)
+QT_WARNING_PUSH
+QT_WARNING_DISABLE_DEPRECATED
 void tst_QPixmapCache::replace()
 {
     //The int part of the API
@@ -345,6 +354,8 @@ void tst_QPixmapCache::replace()
     //Broken keys
     QCOMPARE(QPixmapCache::replace(QPixmapCache::Key(), p2), false);
 }
+QT_WARNING_POP
+#endif // QT_DEPRECATED_SINCE(6, 6)
 
 void tst_QPixmapCache::remove()
 {
diff --git a/tests/auto/gui/kernel/qfileopenevent/qfileopeneventexternal/qfileopeneventexternal.cpp b/tests/auto/gui/kernel/qfileopenevent/qfileopeneventexternal/qfileopeneventexternal.cpp
index 6e50a962..0af605cc 100644
--- a/tests/auto/gui/kernel/qfileopenevent/qfileopeneventexternal/qfileopeneventexternal.cpp
+++ b/tests/auto/gui/kernel/qfileopenevent/qfileopeneventexternal/qfileopeneventexternal.cpp
@@ -14,8 +14,8 @@ struct MyApplication : public QGuiApplication
     {
         if (event->type() == QEvent::FileOpen) {
             QFileOpenEvent* ev = static_cast<QFileOpenEvent *>(event);
-            QFile file;
-            bool ok = ev->openFile(file, QFile::Append | QFile::Unbuffered);
+            QFile file(ev->file());
+            bool ok = file.open(QFile::Append | QFile::Unbuffered);
             if (ok)
                 file.write(QByteArray("+external"));
             return true;
diff --git a/tests/auto/gui/kernel/qfileopenevent/test/tst_qfileopenevent.cpp b/tests/auto/gui/kernel/qfileopenevent/test/tst_qfileopenevent.cpp
index b526240d..50671e17 100644
--- a/tests/auto/gui/kernel/qfileopenevent/test/tst_qfileopenevent.cpp
+++ b/tests/auto/gui/kernel/qfileopenevent/test/tst_qfileopenevent.cpp
@@ -78,8 +78,8 @@ void tst_qfileopenevent::constructor()
 
 QByteArray tst_qfileopenevent::readFileContent(QFileOpenEvent& event)
 {
-    QFile file;
-    event.openFile(file, QFile::ReadOnly);
+    QFile file(event.file());
+    file.open(QFile::ReadOnly);
     file.seek(0);
     QByteArray data = file.readAll();
     return data;
@@ -87,8 +87,8 @@ QByteArray tst_qfileopenevent::readFileContent(QFileOpenEvent& event)
 
 bool tst_qfileopenevent::appendFileContent(QFileOpenEvent& event, const QByteArray& writeContent)
 {
-    QFile file;
-    bool ok = event.openFile(file, QFile::Append | QFile::Unbuffered);
+    QFile file(event.file());
+    bool ok = file.open(QFile::Append | QFile::Unbuffered);
     if (ok)
         ok = file.write(writeContent) == writeContent.size();
     return ok;
@@ -127,8 +127,8 @@ void tst_qfileopenevent::handleLifetime()
     QScopedPointer<QFileOpenEvent> event(createFileAndEvent(QLatin1String("testHandleLifetime"), QByteArray("test content")));
 
     // open a QFile after the original RFile is closed
-    QFile qFile;
-    QCOMPARE(event->openFile(qFile, QFile::Append | QFile::Unbuffered), true);
+    QFile qFile(event->file());
+    QVERIFY(qFile.open(QFile::Append | QFile::Unbuffered));
     event.reset(0);
 
     // write to the QFile after the event is closed
@@ -152,7 +152,8 @@ void tst_qfileopenevent::multiOpen()
 
     QFile files[5];
     for (int i=0; i<5; i++) {
-        QCOMPARE(event->openFile(files[i], QFile::ReadOnly), true);
+        files[i].setFileName(event->file());
+        QVERIFY(files[i].open(QFile::ReadOnly));
     }
     for (int i=0; i<5; i++)
         files[i].seek(i);
diff --git a/tests/auto/gui/kernel/qhighdpi/tst_qhighdpi.cpp b/tests/auto/gui/kernel/qhighdpi/tst_qhighdpi.cpp
index fad3df4d..fdb835d7 100644
--- a/tests/auto/gui/kernel/qhighdpi/tst_qhighdpi.cpp
+++ b/tests/auto/gui/kernel/qhighdpi/tst_qhighdpi.cpp
@@ -10,6 +10,7 @@
 #include <QJsonObject>
 #include <QJsonDocument>
 #include <QStringView>
+#include <QSignalSpy>
 
 Q_LOGGING_CATEGORY(lcTests, "qt.gui.tests")
 
@@ -35,6 +36,7 @@ private slots:
     void screenDpiAndDpr_data();
     void screenDpiAndDpr();
     void screenDpiChange();
+    void screenDpiChangeWithWindow();
     void environment_QT_SCALE_FACTOR();
     void environment_QT_SCREEN_SCALE_FACTORS_data();
     void environment_QT_SCREEN_SCALE_FACTORS();
@@ -55,6 +57,8 @@ private slots:
     void mouseVelocity_data();
     void setCursor();
     void setCursor_data();
+    void setGlobalFactorEmits();
+    void setScreenFactorEmits();
 };
 
 /// Offscreen platform plugin test setup
@@ -235,6 +239,9 @@ void tst_QHighDpi::screenDpiAndDpr()
 
         QWindow window(screen);
         QCOMPARE(window.devicePixelRatio(), screen->devicePixelRatio());
+        window.setGeometry(QRect(screen->geometry().center(), QSize(10, 10)));
+        window.create();
+        QCOMPARE(window.devicePixelRatio(), screen->devicePixelRatio());
     }
 }
 
@@ -261,12 +268,48 @@ void tst_QHighDpi::screenDpiChange()
     for (QScreen *screen : app->screens()) {
         QCOMPARE(screen->devicePixelRatio(), newDpi / standardBaseDpi);
         QCOMPARE(screen->logicalDotsPerInch(), newDpi / screen->devicePixelRatio());
+
         QWindow window(screen);
         QCOMPARE(window.devicePixelRatio(), screen->devicePixelRatio());
+        window.create();
+        QCOMPARE(window.devicePixelRatio(), screen->devicePixelRatio());
     }
     QCOMPARE(app->devicePixelRatio(), newDpi / standardBaseDpi);
 }
 
+void tst_QHighDpi::screenDpiChangeWithWindow()
+{
+    QList<qreal> dpiValues = { 96, 192, 288 };
+    std::unique_ptr<QGuiApplication> app(createStandardOffscreenApp(dpiValues));
+
+    // Create windows for screens
+    QList<QScreen *> screens = app->screens();
+    QList<QWindow *> windows;
+    for (int i = 0; i < screens.count(); ++i) {
+        QScreen *screen = screens[i];
+        QWindow *window = new QWindow();
+        windows.append(window);
+        window->setGeometry(QRect(screen->geometry().center(), QSize(10, 10)));
+        window->create();
+        QCOMPARE(window->devicePixelRatio(), dpiValues[i] / standardBaseDpi);
+    }
+
+    // Change screen DPI
+    QList<qreal> newDpiValues = { 288, 192, 96 };
+    QJsonValue config = offscreenConfiguration();
+    QCborMap map = QCborMap::fromJsonObject(config.toObject());
+    for (int i = 0; i < screens.count(); ++i) {
+        map[QLatin1String("screens")][i][QLatin1String("logicalDpi")] = newDpiValues[i];
+    }
+    setOffscreenConfiguration(map.toJsonObject());
+
+    // Verify that window DPR changes on Screen DPI change.
+    for (int i = 0; i < screens.count(); ++i) {
+        QWindow *window = windows[i];
+        QCOMPARE(window->devicePixelRatio(), newDpiValues[i] / standardBaseDpi);
+    }
+}
+
 void tst_QHighDpi::environment_QT_SCALE_FACTOR()
 {
     qreal factor = 3.1415;
@@ -313,9 +356,10 @@ void tst_QHighDpi::environment_QT_SCREEN_SCALE_FACTORS()
     QFETCH(QByteArray, environment);
     QFETCH(QList<qreal>, expectedDprValues);
 
+    qputenv("QT_SCREEN_SCALE_FACTORS", environment);
+
     // Verify that setting QT_SCREEN_SCALE_FACTORS overrides the from-platform-screen-DPI DPR.
     {
-        qputenv("QT_SCREEN_SCALE_FACTORS", environment);
         std::unique_ptr<QGuiApplication> app(createStandardOffscreenApp(platformScreenDpi));
         int i = 0;
         for (QScreen *screen : app->screens()) {
@@ -327,6 +371,18 @@ void tst_QHighDpi::environment_QT_SCREEN_SCALE_FACTORS()
             QCOMPARE(window.devicePixelRatio(), expextedDpr);
         }
     }
+
+    // Verify that setHighDpiScaleFactorRoundingPolicy applies to QT_SCREEN_SCALE_FACTORS as well
+    QGuiApplication::setHighDpiScaleFactorRoundingPolicy(Qt::HighDpiScaleFactorRoundingPolicy::Round);
+    {
+        std::unique_ptr<QGuiApplication> app(createStandardOffscreenApp(platformScreenDpi));
+        int i = 0;
+        for (QScreen *screen : app->screens()) {
+            qreal expectedRounderDpr = qRound(expectedDprValues[i++]);
+            qreal windowDpr = QWindow(screen).devicePixelRatio();
+            QCOMPARE(windowDpr, expectedRounderDpr);
+        }
+    }
 }
 
 void tst_QHighDpi::environment_QT_USE_PHYSICAL_DPI()
@@ -798,5 +854,34 @@ void tst_QHighDpi::setCursor()
     }
 }
 
+void tst_QHighDpi::setGlobalFactorEmits()
+{
+    QList<qreal> dpiValues { 96, 96, 96 };
+    std::unique_ptr<QGuiApplication> app(createStandardOffscreenApp(dpiValues));
+
+    std::vector<std::unique_ptr<QSignalSpy>> spies;
+    for (QScreen *screen : app->screens())
+        spies.push_back(std::make_unique<QSignalSpy>(screen, &QScreen::geometryChanged));
+
+    QHighDpiScaling::setGlobalFactor(2);
+
+    for (const auto &spy : spies)
+        QCOMPARE(spy->count(), 1);
+
+    QHighDpiScaling::setGlobalFactor(1);
+}
+
+void tst_QHighDpi::setScreenFactorEmits()
+{
+    QList<qreal> dpiValues { 96, 96, 96 };
+    std::unique_ptr<QGuiApplication> app(createStandardOffscreenApp(dpiValues));
+
+    for (QScreen *screen : app->screens()) {
+        QSignalSpy spy(screen, &QScreen::geometryChanged);
+        QHighDpiScaling::setScreenFactor(screen, 2);
+        QCOMPARE(spy.count(), 1);
+    }
+}
+
 #include "tst_qhighdpi.moc"
 QTEST_APPLESS_MAIN(tst_QHighDpi);
diff --git a/tests/auto/gui/kernel/qpalette/tst_qpalette.cpp b/tests/auto/gui/kernel/qpalette/tst_qpalette.cpp
index 81036bee..e5f3e3d1 100644
--- a/tests/auto/gui/kernel/qpalette/tst_qpalette.cpp
+++ b/tests/auto/gui/kernel/qpalette/tst_qpalette.cpp
@@ -23,6 +23,7 @@ private Q_SLOTS:
     void cannotCheckIfInvalidBrushSet();
     void checkIfBrushForCurrentGroupSet();
     void cacheKey();
+    void dataStream();
 };
 
 void tst_QPalette::roleValues_data()
@@ -51,9 +52,10 @@ void tst_QPalette::roleValues_data()
     QTest::newRow("QPalette::ToolTipBase") << int(QPalette::ToolTipBase) << 18;
     QTest::newRow("QPalette::ToolTipText") << int(QPalette::ToolTipText) << 19;
     QTest::newRow("QPalette::PlaceholderText") << int(QPalette::PlaceholderText) << 20;
+    QTest::newRow("QPalette::Accent") << int(QPalette::Accent) << 21;
 
     // Change this value as you add more roles.
-    QTest::newRow("QPalette::NColorRoles") << int(QPalette::NColorRoles) << 21;
+    QTest::newRow("QPalette::NColorRoles") << int(QPalette::NColorRoles) << 22;
 }
 
 void tst_QPalette::roleValues()
@@ -236,8 +238,14 @@ void tst_QPalette::setAllPossibleBrushes()
     }
 
     for (int r = 0; r < QPalette::NColorRoles; ++r) {
+        const QPalette::ColorRole role = static_cast<QPalette::ColorRole>(r);
         for (int g = 0; g < QPalette::NColorGroups; ++g) {
-            QVERIFY(p.isBrushSet(QPalette::ColorGroup(g), QPalette::ColorRole(r)));
+            const QPalette::ColorGroup group = static_cast<QPalette::ColorGroup>(g);
+            // NoRole has no resolve bit => isBrushSet returns false
+            if (role == QPalette::NoRole)
+                QVERIFY(!p.isBrushSet(group, role));
+            else
+                QVERIFY(p.isBrushSet(group, role));
         }
     }
 }
@@ -341,5 +349,44 @@ void tst_QPalette::cacheKey()
     loggerShallowDetach.dismiss();
 }
 
+void tst_QPalette::dataStream()
+{
+    const QColor highlight(42, 42, 42);
+    const QColor accent(13, 13, 13);
+    QPalette palette;
+    palette.setBrush(QPalette::Highlight, highlight);
+    palette.setBrush(QPalette::Accent, accent);
+
+    // When saved with Qt_6_5 or earlier, Accent defaults to Highlight
+    {
+        QByteArray b;
+        {
+            QDataStream stream(&b, QIODevice::WriteOnly);
+            stream.setVersion(QDataStream::Qt_6_5);
+            stream << palette;
+        }
+        QPalette test;
+        QDataStream stream (&b, QIODevice::ReadOnly);
+        stream.setVersion(QDataStream::Qt_6_5);
+        stream >> test;
+        QCOMPARE(test.accent().color(), highlight);
+    }
+
+    // When saved with Qt_6_6 or later, Accent is saved explicitly
+    {
+        QByteArray b;
+        {
+            QDataStream stream(&b, QIODevice::WriteOnly);
+            stream.setVersion(QDataStream::Qt_6_6);
+            stream << palette;
+        }
+        QPalette test;
+        QDataStream stream (&b, QIODevice::ReadOnly);
+        stream.setVersion(QDataStream::Qt_6_6);
+        stream >> test;
+        QCOMPARE(test.accent().color(), accent);
+    }
+}
+
 QTEST_MAIN(tst_QPalette)
 #include "tst_qpalette.moc"
diff --git a/tests/auto/gui/kernel/qwindow/BLACKLIST b/tests/auto/gui/kernel/qwindow/BLACKLIST
index 328d3f51..ed09bfdc 100644
--- a/tests/auto/gui/kernel/qwindow/BLACKLIST
+++ b/tests/auto/gui/kernel/qwindow/BLACKLIST
@@ -23,3 +23,8 @@ android
 android
 [modalWindowModallity]
 android
+[enterLeaveOnWindowShowHide]
+windows-10
+windows-11
+android
+rhel
diff --git a/tests/auto/gui/kernel/qwindow/CMakeLists.txt b/tests/auto/gui/kernel/qwindow/CMakeLists.txt
index 5ddda80c..0b448655 100644
--- a/tests/auto/gui/kernel/qwindow/CMakeLists.txt
+++ b/tests/auto/gui/kernel/qwindow/CMakeLists.txt
@@ -14,8 +14,9 @@ qt_internal_add_test(tst_qwindow
         Qt::GuiPrivate
 )
 
-if(APPLE OR WIN32)
+if(APPLE OR WIN32 OR QT_FEATURE_xcb)
     qt_internal_add_test(tst_foreignwindow
+        LOWDPI
         SOURCES
             tst_foreignwindow.cpp
         LIBRARIES
@@ -28,6 +29,10 @@ if(APPLE OR WIN32)
         set_source_files_properties(tst_foreignwindow.cpp PROPERTIES LANGUAGE OBJCXX)
         set_property(TARGET tst_foreignwindow PROPERTY PROPERTY MACOSX_BUNDLE TRUE)
     endif()
+
+    if(QT_FEATURE_xcb)
+        target_link_libraries(tst_foreignwindow PRIVATE XCB::XCB)
+    endif()
 endif()
 
 ## Scopes:
diff --git a/tests/auto/gui/kernel/qwindow/tst_foreignwindow.cpp b/tests/auto/gui/kernel/qwindow/tst_foreignwindow.cpp
index 1d781789..c42bb9d9 100644
--- a/tests/auto/gui/kernel/qwindow/tst_foreignwindow.cpp
+++ b/tests/auto/gui/kernel/qwindow/tst_foreignwindow.cpp
@@ -7,114 +7,7 @@
 #include <private/qguiapplication_p.h>
 #include <qpa/qplatformintegration.h>
 
-#if defined(Q_OS_MACOS)
-#  include <AppKit/AppKit.h>
-#elif defined(Q_OS_WIN)
-#  include <winuser.h>
-#endif
-
-Q_LOGGING_CATEGORY(lcTests, "qt.gui.tests")
-
-class NativeWindow
-{
-    Q_DISABLE_COPY(NativeWindow)
-public:
-    NativeWindow();
-    ~NativeWindow();
-
-    operator WId() const { return reinterpret_cast<WId>(m_handle); }
-
-    void setGeometry(const QRect &rect);
-    QRect geometry() const;
-
-private:
-#if defined(Q_OS_MACOS)
-    NSView *m_handle = nullptr;
-#elif defined(Q_OS_WIN)
-    HWND m_handle = nullptr;
-#endif
-};
-
-#if defined(Q_OS_MACOS)
-
-@interface View : NSView
-@end
-
-@implementation View
-- (instancetype)init
-{
-    if ((self = [super init])) {
-        qCDebug(lcTests) << "Initialized" << self;
-    }
-    return self;
-}
-
-- (void)dealloc
-{
-    qCDebug(lcTests) << "Deallocating" << self;
-    [super dealloc];
-}
-@end
-
-NativeWindow::NativeWindow()
-    : m_handle([View new])
-{
-}
-
-NativeWindow::~NativeWindow()
-{
-    [m_handle release];
-}
-
-void NativeWindow::setGeometry(const QRect &rect)
-{
-    m_handle.frame = QRectF(rect).toCGRect();
-}
-
-QRect NativeWindow::geometry() const
-{
-    return QRectF::fromCGRect(m_handle.frame).toRect();
-}
-
-#elif defined(Q_OS_WIN)
-
-NativeWindow::NativeWindow()
-{
-    static const LPCWSTR className = []{
-        WNDCLASS wc = {};
-        wc.lpfnWndProc = DefWindowProc;
-        wc.hInstance = GetModuleHandle(nullptr);
-        wc.lpszClassName = L"Native Window";
-        RegisterClass(&wc);
-        return wc.lpszClassName;
-    }();
-    m_handle = CreateWindowEx(0, className, nullptr, WS_POPUP,
-                CW_USEDEFAULT, CW_USEDEFAULT, CW_USEDEFAULT, CW_USEDEFAULT,
-                nullptr, nullptr, GetModuleHandle(nullptr), nullptr);
-}
-
-NativeWindow::~NativeWindow()
-{
-    DestroyWindow(m_handle);
-}
-
-void NativeWindow::setGeometry(const QRect &rect)
-{
-    MoveWindow(m_handle, rect.x(), rect.y(), rect.width(), rect.height(), false);
-}
-
-QRect NativeWindow::geometry() const
-{
-    WINDOWPLACEMENT wp;
-    wp.length = sizeof(WINDOWPLACEMENT);
-    if (GetWindowPlacement(m_handle, &wp)) {
-        RECT r = wp.rcNormalPosition;
-        return QRect(r.left, r.top, r.right - r.left, r.bottom - r.top);
-    }
-    return {};
-}
-
-#endif
+#include "../../../../shared/nativewindow.h"
 
 class tst_ForeignWindow: public QObject
 {
@@ -130,6 +23,8 @@ private slots:
 
     void fromWinId();
     void initialState();
+
+    void embedForeignWindow();
 };
 
 void tst_ForeignWindow::fromWinId()
@@ -165,6 +60,7 @@ void tst_ForeignWindow::initialState()
 
     const QRect initialGeometry(123, 456, 321, 654);
     nativeWindow.setGeometry(initialGeometry);
+    QTRY_COMPARE(nativeWindow.geometry(), initialGeometry);
 
     std::unique_ptr<QWindow> foreignWindow(QWindow::fromWinId(nativeWindow));
     QCOMPARE(nativeWindow.geometry(), initialGeometry);
@@ -174,5 +70,22 @@ void tst_ForeignWindow::initialState()
     QCOMPARE(foreignWindow->geometry(), initialGeometry);
 }
 
+void tst_ForeignWindow::embedForeignWindow()
+{
+    // A foreign window embedded into a Qt UI requires that the rest of Qt
+    // is to be able to treat the foreign child window as any other window
+    // that it can show, hide, stack, and move around.
+
+    QWindow parentWindow;
+
+    NativeWindow nativeWindow;
+    QVERIFY(nativeWindow);
+
+    // As a prerequisite to that, we must be able to reparent the foreign window
+    std::unique_ptr<QWindow> foreignWindow(QWindow::fromWinId(nativeWindow));
+    foreignWindow.release()->setParent(&parentWindow);
+    QTRY_COMPARE(nativeWindow.parentWinId(), parentWindow.winId());
+}
+
 #include <tst_foreignwindow.moc>
 QTEST_MAIN(tst_ForeignWindow)
diff --git a/tests/auto/gui/kernel/qwindow/tst_qwindow.cpp b/tests/auto/gui/kernel/qwindow/tst_qwindow.cpp
index 2b4f11b6..c0d9bd39 100644
--- a/tests/auto/gui/kernel/qwindow/tst_qwindow.cpp
+++ b/tests/auto/gui/kernel/qwindow/tst_qwindow.cpp
@@ -89,6 +89,10 @@ private slots:
     void qobject_castOnDestruction();
     void touchToMouseTranslationByPopup();
     void stateChangeSignal();
+#ifndef QT_NO_CURSOR
+    void enterLeaveOnWindowShowHide_data();
+    void enterLeaveOnWindowShowHide();
+#endif
 
 private:
     QPoint m_availableTopLeft;
@@ -2883,6 +2887,87 @@ void tst_QWindow::stateChangeSignal()
     CHECK_SIGNAL(Qt::WindowMinimized);
 }
 
+#ifndef QT_NO_CURSOR
+void tst_QWindow::enterLeaveOnWindowShowHide_data()
+{
+    QTest::addColumn<Qt::WindowType>("windowType");
+    QTest::addRow("dialog") << Qt::Dialog;
+    QTest::addRow("popup") << Qt::Popup;
+}
+
+/*!
+    Verify that we get enter and leave events if the window under the mouse
+    opens and closes a modal dialog or popup. QWindow might get multiple
+    events in a row, as the various QPA plugins need to use different techniques
+    to synthesize events if the native platform doesn't provide them for us.
+*/
+void tst_QWindow::enterLeaveOnWindowShowHide()
+{
+    if (isPlatformWayland())
+        QSKIP("Can't set cursor position and qWaitForWindowActive on Wayland");
+
+    QFETCH(Qt::WindowType, windowType);
+
+    class Window : public QWindow
+    {
+    public:
+        int numEnterEvents = 0;
+        int numLeaveEvents = 0;
+        QPoint enterPosition;
+    protected:
+        bool event(QEvent *e) override
+        {
+            switch (e->type()) {
+            case QEvent::Enter:
+                ++numEnterEvents;
+                enterPosition = static_cast<QEnterEvent*>(e)->position().toPoint();
+                break;
+            case QEvent::Leave:
+                ++numLeaveEvents;
+                break;
+            default:
+                break;
+            }
+            return QWindow::event(e);
+        }
+    };
+
+    int expectedEnter = 0;
+    int expectedLeave = 0;
+
+    Window window;
+    const QRect screenGeometry = window.screen()->availableGeometry();
+    const QPoint cursorPos = screenGeometry.topLeft() + QPoint(50, 50);
+    window.setGeometry(QRect(cursorPos - QPoint(50, 50), screenGeometry.size() / 4));
+    QCursor::setPos(cursorPos);
+
+    if (!QTest::qWaitFor([&]{ return window.geometry().contains(QCursor::pos()); }))
+        QSKIP("We can't move the cursor");
+
+    window.show();
+    window.requestActivate();
+    QVERIFY(QTest::qWaitForWindowActive(&window));
+
+    ++expectedEnter;
+    QTRY_COMPARE_WITH_TIMEOUT(window.numEnterEvents, expectedEnter, 250);
+    QCOMPARE(window.enterPosition, window.mapFromGlobal(QCursor::pos()));
+
+    QWindow secondary;
+    secondary.setFlag(windowType);
+    secondary.setModality(Qt::WindowModal);
+    secondary.setTransientParent(&window);
+    secondary.setPosition(cursorPos + QPoint(50, 50));
+    secondary.show();
+    QVERIFY(QTest::qWaitForWindowExposed(&secondary));
+    ++expectedLeave;
+    QTRY_VERIFY(window.numLeaveEvents >= expectedLeave);
+    secondary.close();
+    ++expectedEnter;
+    QTRY_VERIFY(window.numEnterEvents >= expectedEnter);
+    QCOMPARE(window.enterPosition, window.mapFromGlobal(QCursor::pos()));
+}
+#endif
+
 #include <tst_qwindow.moc>
 QTEST_MAIN(tst_QWindow)
 
diff --git a/tests/auto/gui/math3d/qvectornd/tst_qvectornd.cpp b/tests/auto/gui/math3d/qvectornd/tst_qvectornd.cpp
index ade6eba7..beba2522 100644
--- a/tests/auto/gui/math3d/qvectornd/tst_qvectornd.cpp
+++ b/tests/auto/gui/math3d/qvectornd/tst_qvectornd.cpp
@@ -1,6 +1,39 @@
 // Copyright (C) 2016 The Qt Company Ltd.
 // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only WITH Qt-GPL-exception-1.0
 
+#include <QVector2D>
+#include <QVector3D>
+#include <QVector4D>
+#ifdef QVARIANT_H
+# error "This test requires qvector{2,3,4}d.h to not include qvariant.h"
+#endif
+
+// don't assume <type_traits>
+template <typename T, typename U>
+constexpr inline bool my_is_same_v = false;
+template <typename T>
+constexpr inline bool my_is_same_v<T, T> = true;
+
+#define CHECK(cvref) \
+    static_assert(my_is_same_v<decltype(get<0>(std::declval<QVector2D cvref >())), float cvref >); \
+    static_assert(my_is_same_v<decltype(get<1>(std::declval<QVector2D cvref >())), float cvref >); \
+    \
+    static_assert(my_is_same_v<decltype(get<0>(std::declval<QVector3D cvref >())), float cvref >); \
+    static_assert(my_is_same_v<decltype(get<1>(std::declval<QVector3D cvref >())), float cvref >); \
+    static_assert(my_is_same_v<decltype(get<2>(std::declval<QVector3D cvref >())), float cvref >); \
+    \
+    static_assert(my_is_same_v<decltype(get<0>(std::declval<QVector4D cvref >())), float cvref >); \
+    static_assert(my_is_same_v<decltype(get<1>(std::declval<QVector4D cvref >())), float cvref >); \
+    static_assert(my_is_same_v<decltype(get<2>(std::declval<QVector4D cvref >())), float cvref >); \
+    static_assert(my_is_same_v<decltype(get<3>(std::declval<QVector4D cvref >())), float cvref >)
+
+CHECK(&);
+CHECK(const &);
+CHECK(&&);
+CHECK(const &&);
+
+#undef CHECK
+
 #include <QTest>
 #include <QtCore/qmath.h>
 #include <QtGui/qvector2d.h>
diff --git a/tests/auto/gui/painting/qcolorspace/tst_qcolorspace.cpp b/tests/auto/gui/painting/qcolorspace/tst_qcolorspace.cpp
index 08f45a25..12178119 100644
--- a/tests/auto/gui/painting/qcolorspace/tst_qcolorspace.cpp
+++ b/tests/auto/gui/painting/qcolorspace/tst_qcolorspace.cpp
@@ -349,8 +349,10 @@ void tst_QColorSpace::imageConversion64PM()
 
     for (int j = 0; j < 16; ++j) {
         int a = j * 15;
-        for (int i = 0; i < 256; ++i)
-            testImage.setPixel(i, j, qPremultiply(qRgba(i, i, i, a)));
+        for (int i = 0; i < 256; ++i) {
+            QRgba64 color = QRgba64::fromRgba(i, i, i, a);
+            testImage.setPixelColor(i, j, QColor::fromRgba64(color));
+        }
     }
 
     testImage.setColorSpace(fromColorSpace);
@@ -389,8 +391,8 @@ void tst_QColorSpace::imageConversion64PM()
         for (int i = 0; i < 256; ++i) {
             QRgb expected = qPremultiply(qRgba(i, i, i, expectedAlpha));
             QRgb p = testImage.pixel(i, j);
-            QCOMPARE(qRed(p),  qGreen(p));
-            QCOMPARE(qRed(p),  qBlue(p));
+            QVERIFY(qAbs(qRed(p) - qGreen(p)) <= 1);
+            QVERIFY(qAbs(qRed(p) - qBlue(p)) <= 1);
             QCOMPARE(qAlpha(p), expectedAlpha);
             QVERIFY((lastRed   - qRed(p))   <= 0);
             QVERIFY((lastGreen - qGreen(p)) <= 0);
diff --git a/tests/auto/gui/painting/qpathclipper/tst_qpathclipper.cpp b/tests/auto/gui/painting/qpathclipper/tst_qpathclipper.cpp
index e93d0f4b..4ecfa241 100644
--- a/tests/auto/gui/painting/qpathclipper/tst_qpathclipper.cpp
+++ b/tests/auto/gui/painting/qpathclipper/tst_qpathclipper.cpp
@@ -470,15 +470,19 @@ void tst_QPathClipper::clipTest(int subjectIndex, int clipIndex, QPathClipper::O
             break;
         }
 
-        if (expected != inResult) {
-            char str[256];
-            const char *opStr =
-                 op == QPathClipper::BoolAnd ? "and" :
-                 op == QPathClipper::BoolOr ? "or" : "sub";
-            sprintf(str, "Expected: %d, actual: %d, subject: %d, clip: %d, op: %s\n",
-                     int(expected), int(inResult), subjectIndex, clipIndex, opStr);
-            QFAIL(str);
-        }
+        auto failLogger = qScopeGuard([&]{
+            qCritical().noquote().nospace()
+                << "\n\tExpected: " << expected
+                << "\n\tActual:   " << inResult
+                << "\n\tSubject:  " << subjectIndex
+                << "\n\tClip:     " << clipIndex
+                << "\n\tOp:       " << (op == QPathClipper::BoolAnd
+                                            ? "and"
+                                            : op == QPathClipper::BoolOr
+                                                  ? "or" : "sub");
+        });
+        QCOMPARE(inResult, expected);
+        failLogger.dismiss();
     }
 }
 
diff --git a/tests/auto/gui/rhi/qrhi/data/buildshaders.bat b/tests/auto/gui/rhi/qrhi/data/buildshaders.bat
index 8518db8a..5b07c7bf 100644
--- a/tests/auto/gui/rhi/qrhi/data/buildshaders.bat
+++ b/tests/auto/gui/rhi/qrhi/data/buildshaders.bat
@@ -15,3 +15,14 @@ qsb --glsl 320es,410 --msl 12 --msltess simpletess.vert -o simpletess.vert.qsb
 qsb --glsl 320es,410 --msl 12 --tess-mode triangles simpletess.tesc -o simpletess.tesc.qsb
 qsb --glsl 320es,410 --msl 12  --tess-vertex-count 3 simpletess.tese -o simpletess.tese.qsb
 qsb --glsl 320es,410 --msl 12 simpletess.frag -o simpletess.frag.qsb
+qsb --glsl 310es,430 --msl 12 --hlsl 50 storagebuffer.comp -o storagebuffer.comp.qsb
+qsb --glsl 320es,430 --msl 12 --msltess storagebuffer_runtime.vert -o storagebuffer_runtime.vert.qsb
+qsb --glsl 320es,430 --msl 12 --tess-mode triangles storagebuffer_runtime.tesc -o storagebuffer_runtime.tesc.qsb
+qsb --glsl 320es,430 --msl 12 --tess-vertex-count 3 storagebuffer_runtime.tese -o storagebuffer_runtime.tese.qsb
+qsb --glsl 320es,430 --msl 12 storagebuffer_runtime.frag -o storagebuffer_runtime.frag.qsb
+qsb --glsl 320es,430 --hlsl 50 -c --msl 12 storagebuffer_runtime.comp -o storagebuffer_runtime.comp.qsb
+qsb --glsl "150,120,100 es" --hlsl 50 -c --msl 12 -o half.vert.qsb half.vert
+qsb --glsl 320es,430 --msl 21 --msltess tessinterfaceblocks.vert -o tessinterfaceblocks.vert.qsb
+qsb --glsl 320es,430 --msl 21 --tess-mode triangles tessinterfaceblocks.tesc -o tessinterfaceblocks.tesc.qsb
+qsb --glsl 320es,430 --msl 21  --tess-vertex-count 3 tessinterfaceblocks.tese -o tessinterfaceblocks.tese.qsb
+qsb --glsl 320es,430 --msl 21 simpletess.frag -o tessinterfaceblocks.frag.qsb
diff --git a/tests/auto/gui/rhi/qrhi/data/half.vert b/tests/auto/gui/rhi/qrhi/data/half.vert
new file mode 100644
index 00000000..b5032013
--- /dev/null
+++ b/tests/auto/gui/rhi/qrhi/data/half.vert
@@ -0,0 +1,10 @@
+#version 440
+
+layout(location = 0) in vec3 position;
+
+out gl_PerVertex { vec4 gl_Position; };
+
+void main()
+{
+    gl_Position = vec4(position, 1.0);
+}
diff --git a/tests/auto/gui/rhi/qrhi/data/half.vert.qsb b/tests/auto/gui/rhi/qrhi/data/half.vert.qsb
new file mode 100644
index 00000000..fb868002
Binary files /dev/null and b/tests/auto/gui/rhi/qrhi/data/half.vert.qsb differ
diff --git a/tests/auto/gui/rhi/qrhi/data/storagebuffer.comp b/tests/auto/gui/rhi/qrhi/data/storagebuffer.comp
new file mode 100644
index 00000000..fd6cabeb
--- /dev/null
+++ b/tests/auto/gui/rhi/qrhi/data/storagebuffer.comp
@@ -0,0 +1,28 @@
+#version 430
+layout (local_size_x = 1, local_size_y = 1, local_size_z = 1) in;
+
+
+layout (binding = 0, std430) buffer toGpu
+{
+    float _float;
+    vec2 _vec2;
+    vec3 _vec3;
+    vec4 _vec4;
+};
+
+layout (binding = 1, std140) buffer fromGpu
+{
+    int _int;
+    ivec2 _ivec2;
+    ivec3 _ivec3;
+    ivec4 _ivec4;
+};
+
+void main()
+{
+    _int = int(_float);
+    _ivec2 = ivec2(_vec2);
+    _ivec3 = ivec3(_vec3);
+    _ivec4 = ivec4(_vec4);
+}
+
diff --git a/tests/auto/gui/rhi/qrhi/data/storagebuffer.comp.qsb b/tests/auto/gui/rhi/qrhi/data/storagebuffer.comp.qsb
new file mode 100644
index 00000000..77887ed9
Binary files /dev/null and b/tests/auto/gui/rhi/qrhi/data/storagebuffer.comp.qsb differ
diff --git a/tests/auto/gui/rhi/qrhi/data/storagebuffer_runtime.comp b/tests/auto/gui/rhi/qrhi/data/storagebuffer_runtime.comp
new file mode 100644
index 00000000..d36f5426
--- /dev/null
+++ b/tests/auto/gui/rhi/qrhi/data/storagebuffer_runtime.comp
@@ -0,0 +1,25 @@
+#version 430
+
+layout (local_size_x = 1, local_size_y = 1, local_size_z = 1) in;
+
+layout (binding = 0, std430) buffer toGpu
+{
+    float _float[];
+};
+
+
+layout (binding = 1, std140) buffer fromGpu
+{
+    int _int[];
+};
+
+void main()
+{
+    int length = min(_float.length(), _int.length());
+
+    for (int i = 0; i < length; ++i)
+        _int[i] = int(_float[i]);
+
+}
+
+
diff --git a/tests/auto/gui/rhi/qrhi/data/storagebuffer_runtime.comp.qsb b/tests/auto/gui/rhi/qrhi/data/storagebuffer_runtime.comp.qsb
new file mode 100644
index 00000000..b4c43ecc
Binary files /dev/null and b/tests/auto/gui/rhi/qrhi/data/storagebuffer_runtime.comp.qsb differ
diff --git a/tests/auto/gui/rhi/qrhi/data/storagebuffer_runtime.frag b/tests/auto/gui/rhi/qrhi/data/storagebuffer_runtime.frag
new file mode 100644
index 00000000..2e45a5f6
--- /dev/null
+++ b/tests/auto/gui/rhi/qrhi/data/storagebuffer_runtime.frag
@@ -0,0 +1,33 @@
+#version 450
+
+layout (location = 0) out vec4 fragColor;
+
+layout (std430, binding = 1) readonly buffer ssboG
+{
+    float g[];
+};
+
+layout (std430, binding = 2) readonly buffer ssboB
+{
+    float b[];
+};
+
+layout (std430, binding = 6) readonly buffer ssboR
+{
+    float r[];
+};
+
+layout (std430, binding = 3) readonly buffer ssbo3
+{
+    vec4 _vec4;
+};
+
+void main()
+{
+
+    // some OpenGL implementations will optimize out the buffer variables if we don't use them
+    // resulting in a .length() of 0.
+    float a = (r[0]+g[0]+b[0])>0?1:1;
+
+    fragColor = a * vec4(r.length(), g.length(), b.length(), 255)/vec4(255);
+}
diff --git a/tests/auto/gui/rhi/qrhi/data/storagebuffer_runtime.frag.qsb b/tests/auto/gui/rhi/qrhi/data/storagebuffer_runtime.frag.qsb
new file mode 100644
index 00000000..53fc9a19
Binary files /dev/null and b/tests/auto/gui/rhi/qrhi/data/storagebuffer_runtime.frag.qsb differ
diff --git a/tests/auto/gui/rhi/qrhi/data/storagebuffer_runtime.tesc b/tests/auto/gui/rhi/qrhi/data/storagebuffer_runtime.tesc
new file mode 100644
index 00000000..56060285
--- /dev/null
+++ b/tests/auto/gui/rhi/qrhi/data/storagebuffer_runtime.tesc
@@ -0,0 +1,42 @@
+#version 450
+
+layout(vertices = 3) out;
+
+
+layout (std430, binding = 7) readonly buffer ssbo7
+{
+    float float7[];
+};
+
+layout (std430, binding = 8) readonly buffer ssbo8
+{
+    float float8[];
+};
+
+layout (std430, binding = 9) readonly buffer ssbo9
+{
+    float float9[];
+};
+
+layout (std430, binding = 10) readonly buffer ssbo10
+{
+    float float10[];
+};
+
+void main()
+{
+
+    // some OpenGL implementations will optimize out the buffer variables if we don't use them
+    // resulting in a .length() of 0
+    float a = float7[0] == 0 && float8[0] == 0 && float9[0] == 0 && float10[0] == 0 ? 1 : 1;
+
+    if (gl_InvocationID == 0) {
+        gl_TessLevelOuter[0] = float7.length() * a;
+        gl_TessLevelOuter[1] = float8.length() * a;
+        gl_TessLevelOuter[2] = float9.length() * a;
+        gl_TessLevelInner[0] = float10.length() * a;
+    }
+
+    gl_out[gl_InvocationID].gl_Position = gl_in[gl_InvocationID].gl_Position;
+
+}
diff --git a/tests/auto/gui/rhi/qrhi/data/storagebuffer_runtime.tesc.qsb b/tests/auto/gui/rhi/qrhi/data/storagebuffer_runtime.tesc.qsb
new file mode 100644
index 00000000..e48aa026
Binary files /dev/null and b/tests/auto/gui/rhi/qrhi/data/storagebuffer_runtime.tesc.qsb differ
diff --git a/tests/auto/gui/rhi/qrhi/data/storagebuffer_runtime.tese b/tests/auto/gui/rhi/qrhi/data/storagebuffer_runtime.tese
new file mode 100644
index 00000000..a8bec135
--- /dev/null
+++ b/tests/auto/gui/rhi/qrhi/data/storagebuffer_runtime.tese
@@ -0,0 +1,39 @@
+#version 450
+
+layout(triangles, fractional_odd_spacing, ccw) in;
+
+layout (std140, binding = 6) uniform unused0
+{
+    int unused;
+}u0;
+
+layout (binding = 0) uniform u
+{
+    mat4 matrix;
+};
+
+layout (std430, binding = 5) readonly buffer ssbo5
+{
+    float _float[];
+};
+
+layout (std430, binding = 8) readonly buffer ssbo8
+{
+    float float8[];
+};
+
+layout (std430, binding = 1) readonly buffer unused1
+{
+    int unused[];
+}u1;
+
+
+void main()
+{
+    // some OpenGL implementations will optimize out the buffer variables if we don't use them
+    // resulting in a .length() of 0
+    float a = _float[0] == 0 && float8[0] == 1 ? 1 : 1;
+
+    if(_float.length() == 64)
+        gl_Position = a *  matrix * ((gl_TessCoord.x * gl_in[0].gl_Position) + (gl_TessCoord.y * gl_in[1].gl_Position) + (gl_TessCoord.z * gl_in[2].gl_Position)) * (float8.length()==2?1:0);
+}
diff --git a/tests/auto/gui/rhi/qrhi/data/storagebuffer_runtime.tese.qsb b/tests/auto/gui/rhi/qrhi/data/storagebuffer_runtime.tese.qsb
new file mode 100644
index 00000000..23a433b5
Binary files /dev/null and b/tests/auto/gui/rhi/qrhi/data/storagebuffer_runtime.tese.qsb differ
diff --git a/tests/auto/gui/rhi/qrhi/data/storagebuffer_runtime.vert b/tests/auto/gui/rhi/qrhi/data/storagebuffer_runtime.vert
new file mode 100644
index 00000000..b3ac10ef
--- /dev/null
+++ b/tests/auto/gui/rhi/qrhi/data/storagebuffer_runtime.vert
@@ -0,0 +1,48 @@
+#version 450
+
+layout (location = 0) in vec3 position;
+
+layout (std140, binding = 6) uniform unused0
+{
+    int unused;
+}u0;
+
+layout (binding = 0) uniform u
+{
+    mat4 matrix;
+};
+
+layout (std430, binding = 5) readonly buffer ssbo5
+{
+    float _float[];
+};
+
+layout (std140, binding = 3) readonly buffer ssbo3
+{
+    vec4 _vec4;
+};
+
+layout (std430, binding = 4) readonly buffer ssbo1
+{
+    bool _bool[];
+};
+
+layout (std430, binding = 1) readonly buffer unused1
+{
+    int unused[];
+}u1;
+
+
+void main()
+{
+
+    // some OpenGL implementations will optimize out the buffer variables if we don't use them
+    // resulting in a .length() of 0
+    float a = _float[0] == 0 && _bool[0] ? 1 : 1;
+
+    gl_Position = vec4(0);
+
+    if(_bool.length() == 32)
+        gl_Position =  a * matrix * vec4(position*_vec4.xyz, _float.length() == 64 ? 1.0 : 0.0);
+
+}
diff --git a/tests/auto/gui/rhi/qrhi/data/storagebuffer_runtime.vert.qsb b/tests/auto/gui/rhi/qrhi/data/storagebuffer_runtime.vert.qsb
new file mode 100644
index 00000000..8b1cff52
Binary files /dev/null and b/tests/auto/gui/rhi/qrhi/data/storagebuffer_runtime.vert.qsb differ
diff --git a/tests/auto/gui/rhi/qrhi/data/tessinterfaceblocks.frag.qsb b/tests/auto/gui/rhi/qrhi/data/tessinterfaceblocks.frag.qsb
new file mode 100644
index 00000000..7eda4bed
Binary files /dev/null and b/tests/auto/gui/rhi/qrhi/data/tessinterfaceblocks.frag.qsb differ
diff --git a/tests/auto/gui/rhi/qrhi/data/tessinterfaceblocks.tesc b/tests/auto/gui/rhi/qrhi/data/tessinterfaceblocks.tesc
new file mode 100644
index 00000000..92a2dc28
--- /dev/null
+++ b/tests/auto/gui/rhi/qrhi/data/tessinterfaceblocks.tesc
@@ -0,0 +1,56 @@
+#version 440
+
+layout(vertices = 3) out;
+
+layout(location = 4) in VertOut
+{
+    vec3 v_color;
+    int a;
+    float b;
+}vOut[];
+
+layout(location = 5) out TescOutA {
+    vec3 color;
+    int id;
+}tcOutA[];
+
+layout(location = 10) out TescOutB {
+    vec2 some;
+    int other[3];
+    vec3 variables;
+}tcOutB[];
+
+layout(location = 2) patch out TescOutC {
+    vec3 stuff;
+    float more_stuff;
+}tcOutC;
+
+void main()
+{
+    // tesc builtin outputs
+    gl_TessLevelOuter[0] = 1.0;
+    gl_TessLevelOuter[1] = 2.0;
+    gl_TessLevelOuter[2] = 3.0;
+    gl_TessLevelOuter[3] = 4.0;
+    gl_TessLevelInner[0] = 5.0;
+    gl_TessLevelInner[1] = 6.0;
+
+    gl_out[gl_InvocationID].gl_Position = gl_in[gl_InvocationID].gl_Position;
+    gl_out[gl_InvocationID].gl_PointSize = 10 + gl_InvocationID;
+    gl_out[gl_InvocationID].gl_ClipDistance[0] = 20.0 + gl_InvocationID;
+    gl_out[gl_InvocationID].gl_ClipDistance[1] = 40.0 + gl_InvocationID;
+    gl_out[gl_InvocationID].gl_ClipDistance[2] = 60.0 + gl_InvocationID;
+    gl_out[gl_InvocationID].gl_ClipDistance[3] = 80.0 + gl_InvocationID;
+    gl_out[gl_InvocationID].gl_ClipDistance[4] = 100.0 + gl_InvocationID;
+
+    // outputs
+    tcOutA[gl_InvocationID].color = vOut[gl_InvocationID].v_color;
+    tcOutA[gl_InvocationID].id = gl_InvocationID + 91;
+    tcOutB[gl_InvocationID].some = vec2(gl_InvocationID, vOut[gl_InvocationID].a);
+    tcOutB[gl_InvocationID].other[0] = gl_PrimitiveID + 10;
+    tcOutB[gl_InvocationID].other[1] = gl_PrimitiveID + 20;
+    tcOutB[gl_InvocationID].other[2] = gl_PrimitiveID + 30;
+    tcOutB[gl_InvocationID].variables = vec3(3.0f, vOut[gl_InvocationID].b, 17.0f);
+    tcOutC.stuff = vec3(1.0, 2.0, 3.0);
+    tcOutC.more_stuff = 4.0;
+}
diff --git a/tests/auto/gui/rhi/qrhi/data/tessinterfaceblocks.tesc.qsb b/tests/auto/gui/rhi/qrhi/data/tessinterfaceblocks.tesc.qsb
new file mode 100644
index 00000000..b503d596
Binary files /dev/null and b/tests/auto/gui/rhi/qrhi/data/tessinterfaceblocks.tesc.qsb differ
diff --git a/tests/auto/gui/rhi/qrhi/data/tessinterfaceblocks.tese b/tests/auto/gui/rhi/qrhi/data/tessinterfaceblocks.tese
new file mode 100644
index 00000000..05430a5f
--- /dev/null
+++ b/tests/auto/gui/rhi/qrhi/data/tessinterfaceblocks.tese
@@ -0,0 +1,96 @@
+#version 440
+
+layout(triangles, fractional_odd_spacing, ccw) in;
+
+layout(std140, binding = 0) uniform buf {
+    mat4 mvp;
+};
+
+layout(location = 5) in TescOutA {
+    vec3 color;
+    int id;
+}tcOutA[];
+
+layout(location = 10) in TescOutB {
+    vec2 some;
+    int other[3];
+    vec3 variables;
+}tcOutB[];
+
+layout(location = 2) patch in TescOutC {
+    vec3 stuff;
+    float more_stuff;
+}tcOutC;
+
+layout(location = 0) out vec3 outColor;
+
+struct A {
+    vec3 color;
+    int id;
+};
+
+struct B {
+    vec2 some;
+    int other[3];
+    vec3 variables;
+};
+
+struct C {
+    vec3 stuff;
+    float more_stuff;
+};
+
+struct Element {
+    A a[3];
+    B b[3];
+    C c;
+    vec4 tesslevelOuter;
+    vec2 tessLevelInner;
+    float pointSize[3];
+    float clipDistance[3][5];
+    vec3 tessCoord;
+    int patchVerticesIn;
+    int primitiveID;
+};
+
+layout(std430, binding = 1) buffer result {
+    int count;
+    Element elements[];
+};
+
+void main()
+{
+    gl_Position = mvp * ((gl_TessCoord.x * gl_in[0].gl_Position) + (gl_TessCoord.y * gl_in[1].gl_Position) + (gl_TessCoord.z * gl_in[2].gl_Position));
+    outColor = gl_TessCoord.x * tcOutA[0].color + gl_TessCoord.y * tcOutA[1].color + gl_TessCoord.z * tcOutA[2].color;
+
+    count = 1;
+
+    elements[gl_PrimitiveID].c.stuff = tcOutC.stuff;
+    elements[gl_PrimitiveID].c.more_stuff = tcOutC.more_stuff;
+    elements[gl_PrimitiveID].tesslevelOuter = vec4(gl_TessLevelOuter[0], gl_TessLevelOuter[1], gl_TessLevelOuter[2], gl_TessLevelOuter[3]);
+    elements[gl_PrimitiveID].tessLevelInner = vec2(gl_TessLevelInner[0], gl_TessLevelInner[1]);
+
+    for (int i = 0; i < 3; ++i) {
+
+        elements[gl_PrimitiveID].a[i].color = tcOutA[i].color;
+        elements[gl_PrimitiveID].a[i].id = tcOutA[i].id;
+
+        elements[gl_PrimitiveID].b[i].some = tcOutB[i].some;
+        elements[gl_PrimitiveID].b[i].other = tcOutB[i].other;
+        elements[gl_PrimitiveID].b[i].variables = tcOutB[i].variables;
+
+        elements[gl_PrimitiveID].pointSize[i] = gl_in[i].gl_PointSize;
+        elements[gl_PrimitiveID].clipDistance[i][0] = gl_in[i].gl_ClipDistance[0];
+        elements[gl_PrimitiveID].clipDistance[i][1] = gl_in[i].gl_ClipDistance[1];
+        elements[gl_PrimitiveID].clipDistance[i][2] = gl_in[i].gl_ClipDistance[2];
+        elements[gl_PrimitiveID].clipDistance[i][3] = gl_in[i].gl_ClipDistance[3];
+        elements[gl_PrimitiveID].clipDistance[i][4] = gl_in[i].gl_ClipDistance[4];
+
+    }
+
+    elements[gl_PrimitiveID].tessCoord = gl_TessCoord;
+    elements[gl_PrimitiveID].patchVerticesIn = 3;
+    elements[gl_PrimitiveID].primitiveID = gl_PrimitiveID;
+
+}
+
diff --git a/tests/auto/gui/rhi/qrhi/data/tessinterfaceblocks.tese.qsb b/tests/auto/gui/rhi/qrhi/data/tessinterfaceblocks.tese.qsb
new file mode 100644
index 00000000..898bda45
Binary files /dev/null and b/tests/auto/gui/rhi/qrhi/data/tessinterfaceblocks.tese.qsb differ
diff --git a/tests/auto/gui/rhi/qrhi/data/tessinterfaceblocks.vert b/tests/auto/gui/rhi/qrhi/data/tessinterfaceblocks.vert
new file mode 100644
index 00000000..7c722bb3
--- /dev/null
+++ b/tests/auto/gui/rhi/qrhi/data/tessinterfaceblocks.vert
@@ -0,0 +1,20 @@
+#version 440
+
+layout(location = 0) in vec3 position;
+layout(location = 1) in vec3 color;
+
+
+layout(location = 4) out VertOut
+{
+    vec3 v_color;
+    int a;
+    float b;
+};
+
+void main()
+{
+    gl_Position = vec4(position, 1.0);
+    v_color = color;
+    a = gl_VertexIndex;
+    b = 13.0f + gl_VertexIndex;
+}
diff --git a/tests/auto/gui/rhi/qrhi/data/tessinterfaceblocks.vert.qsb b/tests/auto/gui/rhi/qrhi/data/tessinterfaceblocks.vert.qsb
new file mode 100644
index 00000000..07384d64
Binary files /dev/null and b/tests/auto/gui/rhi/qrhi/data/tessinterfaceblocks.vert.qsb differ
diff --git a/tests/auto/gui/rhi/qrhi/tst_qrhi.cpp b/tests/auto/gui/rhi/qrhi/tst_qrhi.cpp
index c3e3c093..942ee06f 100644
--- a/tests/auto/gui/rhi/qrhi/tst_qrhi.cpp
+++ b/tests/auto/gui/rhi/qrhi/tst_qrhi.cpp
@@ -9,14 +9,11 @@
 #include <qrgbafloat.h>
 #include <qrgba64.h>
 
-#include <QtGui/private/qrhi_p.h>
-#include <QtGui/private/qrhi_p_p.h>
-#include <QtGui/private/qrhinull_p.h>
+#include <private/qrhi_p.h>
 
 #if QT_CONFIG(opengl)
 # include <QOpenGLContext>
 # include <QOpenGLFunctions>
-# include <QtGui/private/qrhigles2_p.h>
 # include <QtGui/private/qguiapplication_p.h>
 # include <qpa/qplatformintegration.h>
 # define TST_GL
@@ -25,17 +22,15 @@
 #if QT_CONFIG(vulkan)
 # include <QVulkanInstance>
 # include <QVulkanFunctions>
-# include <QtGui/private/qrhivulkan_p.h>
 # define TST_VK
 #endif
 
 #ifdef Q_OS_WIN
-#include <QtGui/private/qrhid3d11_p.h>
 # define TST_D3D11
+# define TST_D3D12
 #endif
 
 #if defined(Q_OS_MACOS) || defined(Q_OS_IOS)
-# include <QtGui/private/qrhimetal_p.h>
 # define TST_MTL
 #endif
 
@@ -76,6 +71,8 @@ private slots:
     void resourceUpdateBatchTextureRawDataStride();
     void resourceUpdateBatchLotsOfResources_data();
     void resourceUpdateBatchLotsOfResources();
+    void resourceUpdateBatchBetweenFrames_data();
+    void resourceUpdateBatchBetweenFrames();
     void invalidPipeline_data();
     void invalidPipeline();
     void srbLayoutCompatibility_data();
@@ -107,6 +104,8 @@ private slots:
     void renderToTextureTexturedQuadAllDynamicBuffers();
     void renderToTextureDeferredSrb_data();
     void renderToTextureDeferredSrb();
+    void renderToTextureDeferredUpdateSamplerInSrb_data();
+    void renderToTextureDeferredUpdateSamplerInSrb();
     void renderToTextureMultipleUniformBuffersAndDynamicOffset_data();
     void renderToTextureMultipleUniformBuffersAndDynamicOffset();
     void renderToTextureSrbReuse_data();
@@ -141,6 +140,19 @@ private slots:
     void tessellation_data();
     void tessellation();
 
+    void tessellationInterfaceBlocks_data();
+    void tessellationInterfaceBlocks();
+
+    void storageBuffer_data();
+    void storageBuffer();
+    void storageBufferRuntimeSizeCompute_data();
+    void storageBufferRuntimeSizeCompute();
+    void storageBufferRuntimeSizeGraphics_data();
+    void storageBufferRuntimeSizeGraphics();
+
+    void halfPrecisionAttributes_data();
+    void halfPrecisionAttributes();
+
 private:
     void setWindowType(QWindow *window, QRhi::Implementation impl);
 
@@ -153,7 +165,10 @@ private:
         QRhiVulkanInitParams vk;
 #endif
 #ifdef TST_D3D11
-        QRhiD3D11InitParams d3d;
+        QRhiD3D11InitParams d3d11;
+#endif
+#ifdef TST_D3D12
+        QRhiD3D12InitParams d3d12;
 #endif
 #ifdef TST_MTL
         QRhiMetalInitParams mtl;
@@ -192,7 +207,10 @@ void tst_QRhi::initTestCase()
 #endif
 
 #ifdef TST_D3D11
-    initParams.d3d.enableDebugLayer = true;
+    initParams.d3d11.enableDebugLayer = true;
+#endif
+#ifdef TST_D3D12
+    initParams.d3d12.enableDebugLayer = true;
 #endif
 }
 
@@ -223,7 +241,10 @@ void tst_QRhi::rhiTestData()
         QTest::newRow("Vulkan") << QRhi::Vulkan << static_cast<QRhiInitParams *>(&initParams.vk);
 #endif
 #ifdef TST_D3D11
-    QTest::newRow("Direct3D 11") << QRhi::D3D11 << static_cast<QRhiInitParams *>(&initParams.d3d);
+    QTest::newRow("Direct3D 11") << QRhi::D3D11 << static_cast<QRhiInitParams *>(&initParams.d3d11);
+#endif
+#ifdef TST_D3D12
+    QTest::newRow("Direct3D 12") << QRhi::D3D12 << static_cast<QRhiInitParams *>(&initParams.d3d12);
 #endif
 #ifdef TST_MTL
     QTest::newRow("Metal") << QRhi::Metal << static_cast<QRhiInitParams *>(&initParams.mtl);
@@ -387,7 +408,12 @@ void tst_QRhi::create()
             QRhi::Tessellation,
             QRhi::GeometryShader,
             QRhi::TextureArrayRange,
-            QRhi::NonFillPolygonMode
+            QRhi::NonFillPolygonMode,
+            QRhi::OneDimensionalTextures,
+            QRhi::OneDimensionalTextureMipmaps,
+            QRhi::HalfAttributes,
+            QRhi::RenderToOneDimensionalTexture,
+            QRhi::ThreeDimensionalTextureMipmaps
         };
         for (size_t i = 0; i <sizeof(features) / sizeof(QRhi::Feature); ++i)
             rhi->isFeatureSupported(features[i]);
@@ -461,6 +487,8 @@ void tst_QRhi::nativeHandles()
         case QRhi::Vulkan:
         {
             const QRhiVulkanNativeHandles *vkHandles = static_cast<const QRhiVulkanNativeHandles *>(rhiHandles);
+            QVERIFY(vkHandles->inst);
+            QCOMPARE(vkHandles->inst, &vulkanInstance);
             QVERIFY(vkHandles->physDev);
             QVERIFY(vkHandles->dev);
             QVERIFY(vkHandles->gfxQueue);
@@ -492,6 +520,17 @@ void tst_QRhi::nativeHandles()
         }
             break;
 #endif
+#ifdef TST_D3D12
+        case QRhi::D3D12:
+        {
+            const QRhiD3D12NativeHandles *d3dHandles = static_cast<const QRhiD3D12NativeHandles *>(rhiHandles);
+            QVERIFY(d3dHandles->dev);
+            QVERIFY(d3dHandles->minimumFeatureLevel > 0);
+            QVERIFY(d3dHandles->adapterLuidLow || d3dHandles->adapterLuidHigh);
+            QVERIFY(d3dHandles->commandQueue);
+        }
+            break;
+#endif
 #ifdef TST_MTL
         case QRhi::Metal:
         {
@@ -536,6 +575,10 @@ void tst_QRhi::nativeHandles()
         case QRhi::D3D11:
             break;
 #endif
+#ifdef TST_D3D12
+        case QRhi::D3D12:
+            break;
+#endif
 #ifdef TST_MTL
         case QRhi::Metal:
         {
@@ -595,6 +638,10 @@ void tst_QRhi::nativeHandles()
         case QRhi::D3D11:
             break;
 #endif
+#ifdef TST_D3D12
+        case QRhi::D3D12:
+            break;
+#endif
 #ifdef TST_MTL
         case QRhi::Metal:
             break;
@@ -662,7 +709,7 @@ void tst_QRhi::nativeHandlesImportVulkan()
 void tst_QRhi::nativeHandlesImportD3D11()
 {
 #ifdef TST_D3D11
-    QScopedPointer<QRhi> rhi(QRhi::create(QRhi::D3D11, &initParams.d3d, QRhi::Flags(), nullptr));
+    QScopedPointer<QRhi> rhi(QRhi::create(QRhi::D3D11, &initParams.d3d11, QRhi::Flags(), nullptr));
     if (!rhi)
         QSKIP("QRhi could not be created, skipping testing D3D11 native handle import");
 
@@ -674,7 +721,7 @@ void tst_QRhi::nativeHandlesImportD3D11()
         h.featureLevel = 0; // see if these are queried as expected, even when not provided
         h.adapterLuidLow = 0;
         h.adapterLuidHigh = 0;
-        QScopedPointer<QRhi> adoptingRhi(QRhi::create(QRhi::D3D11, &initParams.d3d, QRhi::Flags(), &h));
+        QScopedPointer<QRhi> adoptingRhi(QRhi::create(QRhi::D3D11, &initParams.d3d11, QRhi::Flags(), &h));
         QVERIFY(adoptingRhi);
         const QRhiD3D11NativeHandles *newNativeHandles = static_cast<const QRhiD3D11NativeHandles *>(adoptingRhi->nativeHandles());
         QCOMPARE(newNativeHandles->dev, nativeHandles->dev);
@@ -689,7 +736,7 @@ void tst_QRhi::nativeHandlesImportD3D11()
         QRhiD3D11NativeHandles h = *nativeHandles;
         h.dev = nullptr;
         h.context = nullptr;
-        QScopedPointer<QRhi> adoptingRhi(QRhi::create(QRhi::D3D11, &initParams.d3d, QRhi::Flags(), &h));
+        QScopedPointer<QRhi> adoptingRhi(QRhi::create(QRhi::D3D11, &initParams.d3d11, QRhi::Flags(), &h));
         QVERIFY(adoptingRhi);
         const QRhiD3D11NativeHandles *newNativeHandles = static_cast<const QRhiD3D11NativeHandles *>(adoptingRhi->nativeHandles());
         QVERIFY(newNativeHandles->dev != nativeHandles->dev);
@@ -774,6 +821,14 @@ void tst_QRhi::nativeTexture()
     }
         break;
 #endif
+#ifdef TST_D3D12
+    case QRhi::D3D12:
+    {
+        auto *texture = reinterpret_cast<void *>(nativeTex.object);
+        QVERIFY(texture);
+    }
+        break;
+#endif
 #ifdef TST_MTL
     case QRhi::Metal:
     {
@@ -849,6 +904,18 @@ void tst_QRhi::nativeBuffer()
         }
             break;
     #endif
+    #ifdef TST_D3D12
+        case QRhi::D3D12:
+        {
+            QVERIFY(nativeBuf.slotCount >= 1); // always backed by native buffers
+            for (int i = 0; i < nativeBuf.slotCount; ++i) {
+                auto *buffer = static_cast<void * const *>(nativeBuf.objects[i]);
+                QVERIFY(buffer);
+                QVERIFY(*buffer);
+            }
+        }
+            break;
+    #endif
     #ifdef TST_MTL
         case QRhi::Metal:
         {
@@ -913,7 +980,7 @@ void tst_QRhi::resourceUpdateBatchBuffer()
         batch->updateDynamicBuffer(dynamicBuffer.data(), 10, bufferSize - 10, a.constData());
         batch->updateDynamicBuffer(dynamicBuffer.data(), 0, 12, b.constData());
 
-        QRhiBufferReadbackResult readResult;
+        QRhiReadbackResult readResult;
         bool readCompleted = false;
         readResult.completed = [&readCompleted] { readCompleted = true; };
         batch->readBackBuffer(dynamicBuffer.data(), 5, 10, &readResult);
@@ -940,7 +1007,7 @@ void tst_QRhi::resourceUpdateBatchBuffer()
         batch->uploadStaticBuffer(dynamicBuffer.data(), 10, bufferSize - 10, a.constData());
         batch->uploadStaticBuffer(dynamicBuffer.data(), 0, 12, b.constData());
 
-        QRhiBufferReadbackResult readResult;
+        QRhiReadbackResult readResult;
         bool readCompleted = false;
         readResult.completed = [&readCompleted] { readCompleted = true; };
 
@@ -1462,6 +1529,86 @@ void tst_QRhi::resourceUpdateBatchLotsOfResources()
     submitResourceUpdates(rhi.data(), b);
 }
 
+void tst_QRhi::resourceUpdateBatchBetweenFrames_data()
+{
+    rhiTestData();
+}
+
+void tst_QRhi::resourceUpdateBatchBetweenFrames()
+{
+    QFETCH(QRhi::Implementation, impl);
+    QFETCH(QRhiInitParams *, initParams);
+
+    QScopedPointer<QRhi> rhi(QRhi::create(impl, initParams, QRhi::Flags(), nullptr));
+    if (!rhi)
+        QSKIP("QRhi could not be created, skipping testing resource updates");
+
+    QImage image(128, 128, QImage::Format_RGBA8888_Premultiplied);
+    image.fill(Qt::red);
+    static const float bufferData[64] = {};
+
+    QRhiCommandBuffer *cb = nullptr;
+    QRhi::FrameOpResult result = rhi->beginOffscreenFrame(&cb);
+    QVERIFY(result == QRhi::FrameOpSuccess);
+    QVERIFY(cb);
+
+    static const int TEXTURE_COUNT = 123;
+    static const int BUFFER_COUNT = 456;
+
+    QRhiResourceUpdateBatch *u = rhi->nextResourceUpdateBatch();
+    std::vector<std::unique_ptr<QRhiTexture>> textures;
+    std::vector<std::unique_ptr<QRhiBuffer>> buffers;
+
+    for (int i = 0; i < TEXTURE_COUNT; ++i) {
+        std::unique_ptr<QRhiTexture> texture(rhi->newTexture(QRhiTexture::RGBA8,
+                                                             image.size(),
+                                                             1,
+                                                             QRhiTexture::UsedAsTransferSource));
+        QVERIFY(texture->create());
+        u->uploadTexture(texture.get(), image);
+        textures.push_back(std::move(texture));
+    }
+
+    for (int i = 0; i < BUFFER_COUNT; ++i) {
+        std::unique_ptr<QRhiBuffer> buffer(rhi->newBuffer(QRhiBuffer::Immutable, QRhiBuffer::VertexBuffer, 256));
+        QVERIFY(buffer->create());
+        u->uploadStaticBuffer(buffer.get(), bufferData);
+        buffers.push_back(std::move(buffer));
+    }
+
+    rhi->endOffscreenFrame();
+    cb = nullptr;
+
+    // 'u' stays valid, commit it in another frame
+
+    result = rhi->beginOffscreenFrame(&cb);
+    QVERIFY(result == QRhi::FrameOpSuccess);
+    QVERIFY(cb);
+
+    cb->resourceUpdate(u); // this should work
+
+    rhi->endOffscreenFrame();
+
+    u = rhi->nextResourceUpdateBatch();
+    QRhiReadbackResult readResult;
+    bool readCompleted = false;
+    readResult.completed = [&readCompleted] { readCompleted = true; };
+    u->readBackTexture(textures[5].get(), &readResult);
+
+    QVERIFY(submitResourceUpdates(rhi.data(), u));
+    QVERIFY(readCompleted);
+    QCOMPARE(readResult.format, QRhiTexture::RGBA8);
+    QCOMPARE(readResult.pixelSize, image.size());
+
+    QImage wrapperImage(reinterpret_cast<const uchar *>(readResult.data.constData()),
+                        readResult.pixelSize.width(), readResult.pixelSize.height(),
+                        QImage::Format_RGBA8888_Premultiplied);
+    for (int y = 0; y < image.height(); ++y) {
+        for (int x = 0; x < image.width(); ++x)
+            QCOMPARE(wrapperImage.pixel(x, y), qRgba(255, 0, 0, 255));
+    }
+}
+
 static QShader loadShader(const char *name)
 {
     QFile f(QString::fromUtf8(name));
@@ -2950,6 +3097,147 @@ void tst_QRhi::renderToTextureDeferredSrb()
     QCOMPARE(result.pixel(4, 227), empty);
 }
 
+void tst_QRhi::renderToTextureDeferredUpdateSamplerInSrb_data()
+{
+    rhiTestData();
+}
+
+void tst_QRhi::renderToTextureDeferredUpdateSamplerInSrb()
+{
+    QFETCH(QRhi::Implementation, impl);
+    QFETCH(QRhiInitParams *, initParams);
+
+    QScopedPointer<QRhi> rhi(QRhi::create(impl, initParams, QRhi::Flags(), nullptr));
+    if (!rhi)
+        QSKIP("QRhi could not be created, skipping testing rendering");
+
+    QImage inputImage;
+    inputImage.load(QLatin1String(":/data/qt256.png"));
+    QVERIFY(!inputImage.isNull());
+
+    QScopedPointer<QRhiTexture> texture(rhi->newTexture(QRhiTexture::RGBA8, inputImage.size(), 1,
+                                                        QRhiTexture::RenderTarget | QRhiTexture::UsedAsTransferSource));
+    QVERIFY(texture->create());
+
+    QScopedPointer<QRhiTextureRenderTarget> rt(rhi->newTextureRenderTarget({ texture.data() }));
+    QScopedPointer<QRhiRenderPassDescriptor> rpDesc(rt->newCompatibleRenderPassDescriptor());
+    rt->setRenderPassDescriptor(rpDesc.data());
+    QVERIFY(rt->create());
+
+    QRhiCommandBuffer *cb = nullptr;
+    QVERIFY(rhi->beginOffscreenFrame(&cb) == QRhi::FrameOpSuccess);
+    QVERIFY(cb);
+
+    QRhiResourceUpdateBatch *updates = rhi->nextResourceUpdateBatch();
+
+    QScopedPointer<QRhiBuffer> vbuf(rhi->newBuffer(QRhiBuffer::Immutable, QRhiBuffer::VertexBuffer, sizeof(quadVerticesUvs)));
+    QVERIFY(vbuf->create());
+    updates->uploadStaticBuffer(vbuf.data(), quadVerticesUvs);
+
+    QScopedPointer<QRhiTexture> inputTexture(rhi->newTexture(QRhiTexture::RGBA8, inputImage.size()));
+    QVERIFY(inputTexture->create());
+    updates->uploadTexture(inputTexture.data(), inputImage);
+
+    QScopedPointer<QRhiSampler> sampler1(rhi->newSampler(QRhiSampler::Linear, QRhiSampler::Linear, QRhiSampler::Linear,
+                                                         QRhiSampler::Repeat, QRhiSampler::Repeat));
+    QVERIFY(sampler1->create());
+    QScopedPointer<QRhiSampler> sampler2(rhi->newSampler(QRhiSampler::Nearest, QRhiSampler::Nearest, QRhiSampler::None,
+                                                         QRhiSampler::ClampToEdge, QRhiSampler::ClampToEdge));
+    QVERIFY(sampler2->create());
+
+    QScopedPointer<QRhiBuffer> ubuf(rhi->newBuffer(QRhiBuffer::Dynamic, QRhiBuffer::UniformBuffer, 64 + 4));
+    QVERIFY(ubuf->create());
+
+    QMatrix4x4 matrix;
+    updates->updateDynamicBuffer(ubuf.data(), 0, 64, matrix.constData());
+    float opacity = 0.5f;
+    updates->updateDynamicBuffer(ubuf.data(), 64, 4, &opacity);
+
+    const QRhiShaderResourceBinding::StageFlags commonVisibility = QRhiShaderResourceBinding::VertexStage | QRhiShaderResourceBinding::FragmentStage;
+    QScopedPointer<QRhiShaderResourceBindings> srb(rhi->newShaderResourceBindings());
+    srb->setBindings({
+                         QRhiShaderResourceBinding::uniformBuffer(0, commonVisibility, ubuf.data()),
+                         QRhiShaderResourceBinding::sampledTexture(1, QRhiShaderResourceBinding::FragmentStage, inputTexture.data(), sampler1.data())
+                     });
+    QVERIFY(srb->create());
+
+    QScopedPointer<QRhiGraphicsPipeline> pipeline(rhi->newGraphicsPipeline());
+    pipeline->setTopology(QRhiGraphicsPipeline::TriangleStrip);
+    QShader vs = loadShader(":/data/textured.vert.qsb");
+    QVERIFY(vs.isValid());
+    QShader fs = loadShader(":/data/textured.frag.qsb");
+    QVERIFY(fs.isValid());
+    pipeline->setShaderStages({ { QRhiShaderStage::Vertex, vs }, { QRhiShaderStage::Fragment, fs } });
+    QRhiVertexInputLayout inputLayout;
+    inputLayout.setBindings({ { 4 * sizeof(float) } });
+    inputLayout.setAttributes({
+                                  { 0, 0, QRhiVertexInputAttribute::Float2, 0 },
+                                  { 0, 1, QRhiVertexInputAttribute::Float2, 2 * sizeof(float) }
+                              });
+    pipeline->setVertexInputLayout(inputLayout);
+    pipeline->setShaderResourceBindings(srb.data());
+    pipeline->setRenderPassDescriptor(rpDesc.data());
+
+    QVERIFY(pipeline->create());
+
+    // Now update the sampler to a different one, so if the pipeline->create()
+    // baked in static samplers somewhere (with 3D APIs where that's a thing),
+    // based on sampler1, that's now all invalid.
+    srb->setBindings({
+                         QRhiShaderResourceBinding::uniformBuffer(0, commonVisibility, ubuf.data()),
+                         QRhiShaderResourceBinding::sampledTexture(1, QRhiShaderResourceBinding::FragmentStage, inputTexture.data(), sampler2.data())
+                     });
+    srb->updateResources(); // now it references sampler2, not sampler1
+
+    cb->beginPass(rt.data(), Qt::black, { 1.0f, 0 }, updates);
+    cb->setGraphicsPipeline(pipeline.data());
+    cb->setShaderResources();
+    cb->setViewport({ 0, 0, float(texture->pixelSize().width()), float(texture->pixelSize().height()) });
+    QRhiCommandBuffer::VertexInput vbindings(vbuf.data(), 0);
+    cb->setVertexInput(0, 1, &vbindings);
+    cb->draw(4);
+
+    QRhiReadbackResult readResult;
+    QImage result;
+    readResult.completed = [&readResult, &result] {
+        result = QImage(reinterpret_cast<const uchar *>(readResult.data.constData()),
+                        readResult.pixelSize.width(), readResult.pixelSize.height(),
+                        QImage::Format_RGBA8888_Premultiplied);
+    };
+    QRhiResourceUpdateBatch *readbackBatch = rhi->nextResourceUpdateBatch();
+    readbackBatch->readBackTexture({ texture.data() }, &readResult);
+    cb->endPass(readbackBatch);
+
+    rhi->endOffscreenFrame();
+
+    QVERIFY(!result.isNull());
+
+    if (impl == QRhi::Null)
+        return;
+
+    if (rhi->isYUpInFramebuffer() != rhi->isYUpInNDC())
+        result = std::move(result).mirrored();
+
+    // opacity 0.5 (premultiplied)
+    static const auto checkSemiWhite = [](const QRgb &c) {
+        QRgb semiWhite127 = qPremultiply(qRgba(255, 255, 255, 127));
+        QRgb semiWhite128 = qPremultiply(qRgba(255, 255, 255, 128));
+        return c == semiWhite127 || c == semiWhite128;
+    };
+    QVERIFY(checkSemiWhite(result.pixel(79, 77)));
+    QVERIFY(checkSemiWhite(result.pixel(124, 81)));
+    QVERIFY(checkSemiWhite(result.pixel(128, 149)));
+    QVERIFY(checkSemiWhite(result.pixel(120, 189)));
+    QVERIFY(checkSemiWhite(result.pixel(116, 185)));
+    QVERIFY(checkSemiWhite(result.pixel(191, 172)));
+
+    QRgb empty = qRgba(0, 0, 0, 0);
+    QCOMPARE(result.pixel(11, 45), empty);
+    QCOMPARE(result.pixel(246, 202), empty);
+    QCOMPARE(result.pixel(130, 18), empty);
+    QCOMPARE(result.pixel(4, 227), empty);
+}
+
 void tst_QRhi::renderToTextureMultipleUniformBuffersAndDynamicOffset_data()
 {
     rhiTestData();
@@ -3661,7 +3949,7 @@ void tst_QRhi::resourceUpdateBatchBufferTextureWithSwapchainFrames()
     const char *b = "abcdefghi";
 
     bool readCompleted = false;
-    QRhiBufferReadbackResult readResult;
+    QRhiReadbackResult readResult;
     readResult.completed = [&readCompleted] { readCompleted = true; };
     QRhiReadbackResult texReadResult;
     texReadResult.completed = [&readCompleted] { readCompleted = true; };
@@ -4555,7 +4843,7 @@ void tst_QRhi::threeDimTexture()
     }
 
     // mipmaps
-    {
+    if (rhi->isFeatureSupported(QRhi::ThreeDimensionalTextureMipmaps)) {
         QScopedPointer<QRhiTexture> texture(rhi->newTexture(QRhiTexture::RGBA8, WIDTH, HEIGHT, DEPTH,
                                                             1, QRhiTexture::MipMapped | QRhiTexture::UsedWithGenerateMips));
         QVERIFY(texture->create());
@@ -4600,6 +4888,8 @@ void tst_QRhi::threeDimTexture()
         // problems with this.
         if (impl != QRhi::Null && impl != QRhi::OpenGLES2)
             QVERIFY(imageRGBAEquals(result, referenceImage, 2));
+    } else {
+        qDebug("Skipping 3D texture mipmap generation test because it is reported as unsupported");
     }
 
     // render target (one slice)
@@ -4979,9 +5269,11 @@ void tst_QRhi::oneDimTexture()
     }
 
     // mipmaps and 1D render target
-    if (!rhi->isFeatureSupported(QRhi::OneDimensionalTextureMipmaps))
-        QSKIP("Skipping testing 1D texture mipmaps and 1D render target because they are reported "
-              "as unsupported");
+    if (!rhi->isFeatureSupported(QRhi::OneDimensionalTextureMipmaps)
+            || !rhi->isFeatureSupported(QRhi::RenderToOneDimensionalTexture))
+    {
+        QSKIP("Skipping testing 1D texture mipmaps and 1D render target because they are reported as unsupported");
+    }
 
     {
         QScopedPointer<QRhiTexture> texture(
@@ -5244,6 +5536,9 @@ void tst_QRhi::leakedResourceDestroy()
     if (impl == QRhi::Vulkan)
         qDebug("Vulkan validation layer warnings may be printed below - this is expected");
 
+    if (impl == QRhi::D3D12)
+        qDebug("QD3D12CpuDescriptorPool warnings may be printed below - this is expected");
+
     qDebug("QRhi resource leak check warnings may be printed below - this is expected");
 
     // make the QRhi go away early
@@ -5467,7 +5762,7 @@ void tst_QRhi::tessellation()
         QSKIP("Tessellation is not supported with this graphics API, skipping test");
     }
 
-    if (rhi->backend() == QRhi::D3D11)
+    if (rhi->backend() == QRhi::D3D11 || rhi->backend() == QRhi::D3D12)
         QSKIP("Skipping tessellation test on D3D for now, test assets not prepared for HLSL yet");
 
     QScopedPointer<QRhiTexture> texture(rhi->newTexture(QRhiTexture::RGBA8, QSize(1280, 720), 1,
@@ -5605,5 +5900,891 @@ void tst_QRhi::tessellation()
     QVERIFY(greenCount > 50);
 }
 
+void tst_QRhi::tessellationInterfaceBlocks_data()
+{
+    rhiTestData();
+}
+
+void tst_QRhi::tessellationInterfaceBlocks()
+{
+#ifdef Q_OS_ANDROID
+    if (QNativeInterface::QAndroidApplication::sdkVersion() >= 31)
+        QSKIP("Fails on Android 12 (QTBUG-108844)");
+#endif
+    QFETCH(QRhi::Implementation, impl);
+    QFETCH(QRhiInitParams *, initParams);
+
+    // This test is intended for Metal, but will run on other tessellation render pipelines
+    //
+    // Metal tessellation uses a combination of compute pipelines for the vert and tesc, and a
+    // render pipeline for the tese and frag. This test uses input output interface blocks between
+    // the tesc and tese, and all tese stage builtin inputs to check that the Metal tese-frag
+    // pipeline vertex inputs are correctly configured. The tese writes the values to a storage
+    // buffer whose values are checked by the unit test. MSL 2.1 is required for this test.
+    // (requires support for writing to a storage buffer in the vertex shader within a render
+    // pipeline)
+
+    QScopedPointer<QRhi> rhi(QRhi::create(impl, initParams, QRhi::Flags(), nullptr));
+    if (!rhi)
+        QSKIP("QRhi could not be created, skipping testing rendering");
+
+    if (!rhi->isFeatureSupported(QRhi::Tessellation)) {
+        // From a Vulkan or Metal implementation we expect tessellation to work,
+        // even though it is optional (as per spec) for Vulkan.
+        QVERIFY(rhi->backend() != QRhi::Vulkan);
+        QVERIFY(rhi->backend() != QRhi::Metal);
+        QSKIP("Tessellation is not supported with this graphics API, skipping test");
+    }
+
+    if (rhi->backend() == QRhi::D3D11 || rhi->backend() == QRhi::D3D12)
+        QSKIP("Skipping tessellation test on D3D for now, test assets not prepared for HLSL yet");
+
+    if (rhi->backend() == QRhi::OpenGLES2)
+        QSKIP("Skipping test on OpenGL as gl_ClipDistance[] support inconsistent");
+
+    QScopedPointer<QRhiTexture> texture(
+            rhi->newTexture(QRhiTexture::RGBA8, QSize(1280, 720), 1,
+                            QRhiTexture::RenderTarget | QRhiTexture::UsedAsTransferSource));
+    QVERIFY(texture->create());
+
+    QScopedPointer<QRhiTextureRenderTarget> rt(rhi->newTextureRenderTarget({ texture.data() }));
+    QScopedPointer<QRhiRenderPassDescriptor> rpDesc(rt->newCompatibleRenderPassDescriptor());
+    rt->setRenderPassDescriptor(rpDesc.data());
+    QVERIFY(rt->create());
+
+    static const float triangleVertices[] = {
+        0.0f, 0.5f, 0.0f, 0.0f, 0.0f,  1.0f, -0.5f, -0.5f, 0.0f,
+        1.0f, 0.0f, 0.0f, 0.5f, -0.5f, 0.0f, 0.0f,  1.0f,  0.0f,
+    };
+
+    QRhiResourceUpdateBatch *u = rhi->nextResourceUpdateBatch();
+    QScopedPointer<QRhiBuffer> vbuf(rhi->newBuffer(QRhiBuffer::Immutable, QRhiBuffer::VertexBuffer,
+                                                   sizeof(triangleVertices)));
+    QVERIFY(vbuf->create());
+    u->uploadStaticBuffer(vbuf.data(), triangleVertices);
+
+    QScopedPointer<QRhiBuffer> ubuf(
+            rhi->newBuffer(QRhiBuffer::Dynamic, QRhiBuffer::UniformBuffer, 64));
+    QVERIFY(ubuf->create());
+
+    // Use the 3D API specific correction matrix that flips Y, so we can use
+    // the OpenGL-targeted vertex data and the tessellation winding order of
+    // counter-clockwise to get uniform results.
+    QMatrix4x4 mvp = rhi->clipSpaceCorrMatrix();
+    u->updateDynamicBuffer(ubuf.data(), 0, 64, mvp.constData());
+
+    QScopedPointer<QRhiBuffer> buffer(
+            rhi->newBuffer(QRhiBuffer::Static, QRhiBuffer::UsageFlag::StorageBuffer, 1024));
+    QVERIFY(buffer->create());
+
+    u->uploadStaticBuffer(buffer.data(), 0, 1024, QByteArray(1024, 0).constData());
+
+    QScopedPointer<QRhiShaderResourceBindings> srb(rhi->newShaderResourceBindings());
+    srb->setBindings(
+            { QRhiShaderResourceBinding::uniformBuffer(
+                      0, QRhiShaderResourceBinding::TessellationEvaluationStage, ubuf.data()),
+              QRhiShaderResourceBinding::bufferLoadStore(
+                      1, QRhiShaderResourceBinding::TessellationEvaluationStage, buffer.data()) });
+    QVERIFY(srb->create());
+
+    QScopedPointer<QRhiGraphicsPipeline> pipeline(rhi->newGraphicsPipeline());
+
+    pipeline->setTopology(QRhiGraphicsPipeline::Patches);
+    pipeline->setPatchControlPointCount(3);
+
+    pipeline->setShaderStages(
+            { { QRhiShaderStage::Vertex, loadShader(":/data/tessinterfaceblocks.vert.qsb") },
+              { QRhiShaderStage::TessellationControl,
+                loadShader(":/data/tessinterfaceblocks.tesc.qsb") },
+              { QRhiShaderStage::TessellationEvaluation,
+                loadShader(":/data/tessinterfaceblocks.tese.qsb") },
+              { QRhiShaderStage::Fragment, loadShader(":/data/tessinterfaceblocks.frag.qsb") } });
+
+    pipeline->setCullMode(QRhiGraphicsPipeline::Back); // to ensure the winding order is correct
+
+    // won't get the wireframe with OpenGL ES
+    if (rhi->isFeatureSupported(QRhi::NonFillPolygonMode))
+        pipeline->setPolygonMode(QRhiGraphicsPipeline::Line);
+
+    QRhiVertexInputLayout inputLayout;
+    inputLayout.setBindings({ { 6 * sizeof(float) } });
+    inputLayout.setAttributes({ { 0, 0, QRhiVertexInputAttribute::Float3, 0 },
+                                { 0, 1, QRhiVertexInputAttribute::Float3, 3 * sizeof(float) } });
+
+    pipeline->setVertexInputLayout(inputLayout);
+    pipeline->setShaderResourceBindings(srb.data());
+    pipeline->setRenderPassDescriptor(rpDesc.data());
+
+    QVERIFY(pipeline->create());
+
+    QRhiCommandBuffer *cb = nullptr;
+    QCOMPARE(rhi->beginOffscreenFrame(&cb), QRhi::FrameOpSuccess);
+
+    cb->beginPass(rt.data(), Qt::black, { 1.0f, 0 }, u);
+    cb->setGraphicsPipeline(pipeline.data());
+    cb->setViewport({ 0, 0, float(rt->pixelSize().width()), float(rt->pixelSize().height()) });
+    cb->setShaderResources();
+    QRhiCommandBuffer::VertexInput vbufBinding(vbuf.data(), 0);
+    cb->setVertexInput(0, 1, &vbufBinding);
+    cb->draw(3);
+
+    QRhiReadbackResult readResult;
+    QImage result;
+    readResult.completed = [&readResult, &result] {
+        result = QImage(reinterpret_cast<const uchar *>(readResult.data.constData()),
+                        readResult.pixelSize.width(), readResult.pixelSize.height(),
+                        QImage::Format_RGBA8888);
+    };
+    QRhiResourceUpdateBatch *readbackBatch = rhi->nextResourceUpdateBatch();
+    readbackBatch->readBackTexture({ texture.data() }, &readResult);
+
+    QRhiReadbackResult bufferReadResult;
+    bufferReadResult.completed = []() {};
+    readbackBatch->readBackBuffer(buffer.data(), 0, 1024, &bufferReadResult);
+
+    cb->endPass(readbackBatch);
+
+    rhi->endOffscreenFrame();
+
+    if (rhi->isYUpInFramebuffer()) // we used clipSpaceCorrMatrix so this is different from many
+                                   // other tests
+        result = std::move(result).mirrored();
+
+    QCOMPARE(result.size(), rt->pixelSize());
+
+    // cannot check rendering results with Null, because there is no rendering there
+    if (impl == QRhi::Null)
+        return;
+
+    int redCount = 0, greenCount = 0, blueCount = 0;
+    for (int y = 0; y < result.height(); ++y) {
+        const quint32 *p = reinterpret_cast<const quint32 *>(result.constScanLine(y));
+        int x = result.width() - 1;
+        while (x-- >= 0) {
+            const QRgb c(*p++);
+            const int red = qRed(c);
+            const int green = qGreen(c);
+            const int blue = qBlue(c);
+            // just count the color components that are above a certain threshold
+            if (red > 240)
+                ++redCount;
+            if (green > 240)
+                ++greenCount;
+            if (blue > 240)
+                ++blueCount;
+        }
+    }
+
+    // make sure we drew something
+    QVERIFY(redCount > 50);
+    QVERIFY(blueCount > 50);
+    QVERIFY(greenCount > 50);
+
+    //    StorageBlock("result" "" knownSize=16 binding=1 set=0 runtimeArrayStride=336 QList(
+    //        BlockVariable("int" "count" offset=0 size=4),
+    //        BlockVariable("struct" "elements" offset=16 size=0 array=QList(0) structMembers=QList(
+    //            BlockVariable("struct" "a" offset=0 size=48 array=QList(3) structMembers=QList(
+    //                BlockVariable("vec3" "color" offset=0 size=12),
+    //                BlockVariable("int" "id" offset=12 size=4))),
+    //            BlockVariable("struct" "b" offset=48 size=144 array=QList(3) structMembers=QList(
+    //                BlockVariable("vec2" "some" offset=0 size=8),
+    //                BlockVariable("int" "other" offset=8 size=12 array=QList(3)),
+    //                BlockVariable("vec3" "variables" offset=32 size=12))),
+    //            BlockVariable("struct" "c" offset=192 size=16 structMembers=QList(
+    //                BlockVariable("vec3" "stuff" offset=0 size=12),
+    //                BlockVariable("float" "more_stuff" offset=12 size=4))),
+    //            BlockVariable("vec4" "tesslevelOuter" offset=208 size=16),
+    //            BlockVariable("vec2" "tessLevelInner" offset=224 size=8),
+    //            BlockVariable("float" "pointSize" offset=232 size=12 array=QList(3)),
+    //            BlockVariable("float" "clipDistance" offset=244 size=60 array=QList(5, 3)),
+    //            BlockVariable("vec3" "tessCoord" offset=304 size=12),
+    //            BlockVariable("int" "patchVerticesIn" offset=316 size=4),
+    //            BlockVariable("int" "primitiveID" offset=320 size=4)))))
+
+    // int count
+    QCOMPARE(reinterpret_cast<const int *>(&bufferReadResult.data.constData()[0])[0], 1);
+
+    // a[0].color
+    QCOMPARE(reinterpret_cast<const float *>(&bufferReadResult.data.constData()[16 + 0 + 0])[0], 0.0f);
+    QCOMPARE(reinterpret_cast<const float *>(&bufferReadResult.data.constData()[16 + 0 + 0])[1], 0.0f);
+    QCOMPARE(reinterpret_cast<const float *>(&bufferReadResult.data.constData()[16 + 0 + 0])[2], 1.0f);
+
+    // a[0].id
+    QCOMPARE(reinterpret_cast<const int *>(&bufferReadResult.data.constData()[16 + 0 + 12])[0], 91);
+
+    // a[1].color
+    QCOMPARE(reinterpret_cast<const float *>(&bufferReadResult.data.constData()[16 + 16 + 0])[0], 1.0f);
+    QCOMPARE(reinterpret_cast<const float *>(&bufferReadResult.data.constData()[16 + 16 + 0])[1], 0.0f);
+    QCOMPARE(reinterpret_cast<const float *>(&bufferReadResult.data.constData()[16 + 16 + 0])[2], 0.0f);
+
+    // a[1].id
+    QCOMPARE(reinterpret_cast<const int *>(&bufferReadResult.data.constData()[16 + 16 + 12])[0], 92);
+
+    // a[2].color
+    QCOMPARE(reinterpret_cast<const float *>(&bufferReadResult.data.constData()[16 + 32 + 0])[0], 0.0f);
+    QCOMPARE(reinterpret_cast<const float *>(&bufferReadResult.data.constData()[16 + 32 + 0])[1], 1.0f);
+    QCOMPARE(reinterpret_cast<const float *>(&bufferReadResult.data.constData()[16 + 32 + 0])[2], 0.0f);
+
+    // a[2].id
+    QCOMPARE(reinterpret_cast<const int *>(&bufferReadResult.data.constData()[16 + 32 + 12])[0], 93);
+
+    // b[0].some
+    QCOMPARE(reinterpret_cast<const float *>(&bufferReadResult.data.constData()[16 + 48 + 0])[0], 0.0f);
+    QCOMPARE(reinterpret_cast<const float *>(&bufferReadResult.data.constData()[16 + 48 + 0])[1], 0.0f);
+
+    // b[0].other[0]
+    QCOMPARE(reinterpret_cast<const int *>(&bufferReadResult.data.constData()[16 + 48 + 8])[0], 10.0f);
+    QCOMPARE(reinterpret_cast<const int *>(&bufferReadResult.data.constData()[16 + 48 + 8])[1], 20.0f);
+    QCOMPARE(reinterpret_cast<const int *>(&bufferReadResult.data.constData()[16 + 48 + 8])[2], 30.0f);
+
+    // b[0].variables
+    QCOMPARE(reinterpret_cast<const float *>(&bufferReadResult.data.constData()[16 + 48 + 32])[0], 3.0f);
+    QCOMPARE(reinterpret_cast<const float *>(&bufferReadResult.data.constData()[16 + 48 + 32])[1], 13.0f);
+    QCOMPARE(reinterpret_cast<const float *>(&bufferReadResult.data.constData()[16 + 48 + 32])[2], 17.0f);
+
+    // b[1].some
+    QCOMPARE(reinterpret_cast<const float *>(&bufferReadResult.data.constData()[16 + 96 + 0])[0], 1.0f);
+    QCOMPARE(reinterpret_cast<const float *>(&bufferReadResult.data.constData()[16 + 96 + 0])[1], 1.0f);
+
+    // b[1].other[0]
+    QCOMPARE(reinterpret_cast<const int *>(&bufferReadResult.data.constData()[16 + 96 + 8])[0], 10.0f);
+    QCOMPARE(reinterpret_cast<const int *>(&bufferReadResult.data.constData()[16 + 96 + 8])[1], 20.0f);
+    QCOMPARE(reinterpret_cast<const int *>(&bufferReadResult.data.constData()[16 + 96 + 8])[2], 30.0f);
+
+    // b[1].variables
+    QCOMPARE(reinterpret_cast<const float *>(&bufferReadResult.data.constData()[16 + 96 + 32])[0], 3.0f);
+    QCOMPARE(reinterpret_cast<const float *>(&bufferReadResult.data.constData()[16 + 96 + 32])[1], 14.0f);
+    QCOMPARE(reinterpret_cast<const float *>(&bufferReadResult.data.constData()[16 + 96 + 32])[2], 17.0f);
+
+    // b[2].some
+    QCOMPARE(reinterpret_cast<const float *>(&bufferReadResult.data.constData()[16 + 144 + 0])[0], 2.0f);
+    QCOMPARE(reinterpret_cast<const float *>(&bufferReadResult.data.constData()[16 + 144 + 0])[1], 2.0f);
+
+    // b[2].other[0]
+    QCOMPARE(reinterpret_cast<const int *>(&bufferReadResult.data.constData()[16 + 144 + 8])[0], 10.0f);
+    QCOMPARE(reinterpret_cast<const int *>(&bufferReadResult.data.constData()[16 + 144 + 8])[1], 20.0f);
+    QCOMPARE(reinterpret_cast<const int *>(&bufferReadResult.data.constData()[16 + 144 + 8])[2], 30.0f);
+
+    // b[2].variables
+    QCOMPARE(reinterpret_cast<const float *>(&bufferReadResult.data.constData()[16 + 144 + 32])[0], 3.0f);
+    QCOMPARE(reinterpret_cast<const float *>(&bufferReadResult.data.constData()[16 + 144 + 32])[1], 15.0f);
+    QCOMPARE(reinterpret_cast<const float *>(&bufferReadResult.data.constData()[16 + 144 + 32])[2], 17.0f);
+
+    // c.stuff
+    QCOMPARE(reinterpret_cast<const float *>(&bufferReadResult.data.constData()[16 + 192 + 0])[0], 1.0f);
+    QCOMPARE(reinterpret_cast<const float *>(&bufferReadResult.data.constData()[16 + 192 + 0])[1], 2.0f);
+    QCOMPARE(reinterpret_cast<const float *>(&bufferReadResult.data.constData()[16 + 192 + 0])[2], 3.0f);
+
+    // c.more_stuff
+    QCOMPARE(reinterpret_cast<const float *>(&bufferReadResult.data.constData()[16 + 192 + 12])[0], 4.0f);
+
+    // tessLevelOuter
+    QCOMPARE(reinterpret_cast<const float *>(&bufferReadResult.data.constData()[16 + 208 + 0])[0], 1.0f);
+    QCOMPARE(reinterpret_cast<const float *>(&bufferReadResult.data.constData()[16 + 208 + 0])[1], 2.0f);
+    QCOMPARE(reinterpret_cast<const float *>(&bufferReadResult.data.constData()[16 + 208 + 0])[2], 3.0f);
+
+    // tessLevelInner
+    QCOMPARE(reinterpret_cast<const float *>(&bufferReadResult.data.constData()[16 + 224 + 0])[0], 5.0f);
+
+    // pointSize[0]
+    QCOMPARE(reinterpret_cast<const float *>(&bufferReadResult.data.constData()[16 + 232 + 0])[0], 10.0f);
+    QCOMPARE(reinterpret_cast<const float *>(&bufferReadResult.data.constData()[16 + 232 + 0])[1], 11.0f);
+    QCOMPARE(reinterpret_cast<const float *>(&bufferReadResult.data.constData()[16 + 232 + 0])[2], 12.0f);
+
+    // clipDistance[0][0]
+    QCOMPARE(reinterpret_cast<const float *>(&bufferReadResult.data.constData()[16 + 244 + 0])[0], 20.0f);
+    QCOMPARE(reinterpret_cast<const float *>(&bufferReadResult.data.constData()[16 + 244 + 0])[1], 40.0f);
+    QCOMPARE(reinterpret_cast<const float *>(&bufferReadResult.data.constData()[16 + 244 + 0])[2], 60.0f);
+    QCOMPARE(reinterpret_cast<const float *>(&bufferReadResult.data.constData()[16 + 244 + 0])[3], 80.0f);
+    QCOMPARE(reinterpret_cast<const float *>(&bufferReadResult.data.constData()[16 + 244 + 0])[4], 100.0f);
+
+    // clipDistance[1][0]
+    QCOMPARE(reinterpret_cast<const float *>(&bufferReadResult.data.constData()[16 + 244 + 20])[0], 21.0f);
+    QCOMPARE(reinterpret_cast<const float *>(&bufferReadResult.data.constData()[16 + 244 + 20])[1], 41.0f);
+    QCOMPARE(reinterpret_cast<const float *>(&bufferReadResult.data.constData()[16 + 244 + 20])[2], 61.0f);
+    QCOMPARE(reinterpret_cast<const float *>(&bufferReadResult.data.constData()[16 + 244 + 20])[3], 81.0f);
+    QCOMPARE(reinterpret_cast<const float *>(&bufferReadResult.data.constData()[16 + 244 + 20])[4], 101.0f);
+
+    // clipDistance[2][0]
+    QCOMPARE(reinterpret_cast<const float *>(&bufferReadResult.data.constData()[16 + 244 + 40])[0], 22.0f);
+    QCOMPARE(reinterpret_cast<const float *>(&bufferReadResult.data.constData()[16 + 244 + 40])[1], 42.0f);
+    QCOMPARE(reinterpret_cast<const float *>(&bufferReadResult.data.constData()[16 + 244 + 40])[2], 62.0f);
+    QCOMPARE(reinterpret_cast<const float *>(&bufferReadResult.data.constData()[16 + 244 + 40])[3], 82.0f);
+    QCOMPARE(reinterpret_cast<const float *>(&bufferReadResult.data.constData()[16 + 244 + 40])[4], 102.0f);
+
+    // patchVerticesIn
+    QCOMPARE(reinterpret_cast<const int *>(&bufferReadResult.data.constData()[16 + 316 + 0])[0], 3);
+
+    // primitiveID
+    QCOMPARE(reinterpret_cast<const int *>(&bufferReadResult.data.constData()[16 + 320 + 0])[0], 0);
+}
+
+void tst_QRhi::storageBuffer_data()
+{
+    rhiTestData();
+}
+
+void tst_QRhi::storageBuffer()
+{
+    // Use a compute shader to copy from one storage buffer of float types to
+    // another of int types. We fill the "toGpu" buffer with known float type
+    // data generated and uploaded from the CPU, then dispatch a compute shader
+    // to copy from the "toGpu" buffer to the "fromGpu" buffer. We then
+    // readback the "fromGpu" buffer and verify that the results are as
+    // expected.
+
+    QFETCH(QRhi::Implementation, impl);
+    QFETCH(QRhiInitParams *, initParams);
+
+    // we can't test with Null as there is no compute
+    if (impl == QRhi::Null)
+        return;
+
+    QScopedPointer<QRhi> rhi(QRhi::create(impl, initParams, QRhi::Flags(), nullptr));
+    if (!rhi)
+        QSKIP("QRhi could not be created, skipping testing");
+
+    if (!rhi->isFeatureSupported(QRhi::Feature::Compute))
+        QSKIP("Compute is not supported with this graphics API, skipping test");
+
+    QShader s = loadShader(":/data/storagebuffer.comp.qsb");
+    QVERIFY(s.isValid());
+    QCOMPARE(s.description().storageBlocks().size(), 2);
+
+    QMap<QByteArray, QShaderDescription::StorageBlock> blocks;
+    for (const QShaderDescription::StorageBlock &block : s.description().storageBlocks())
+        blocks[block.blockName] = block;
+
+    QMap<QByteArray, QShaderDescription::BlockVariable> toGpuMembers;
+    for (const QShaderDescription::BlockVariable &member: blocks["toGpu"].members)
+        toGpuMembers[member.name] = member;
+
+    QMap<QByteArray, QShaderDescription::BlockVariable> fromGpuMembers;
+    for (const QShaderDescription::BlockVariable &member: blocks["fromGpu"].members)
+        fromGpuMembers[member.name] = member;
+
+    for (QRhiBuffer::Type type : {QRhiBuffer::Type::Immutable, QRhiBuffer::Type::Static}) {
+
+        QRhiCommandBuffer *cb = nullptr;
+        rhi->beginOffscreenFrame(&cb);
+        QVERIFY(cb);
+
+        QRhiResourceUpdateBatch *u = rhi->nextResourceUpdateBatch();
+        QVERIFY(u);
+
+        QScopedPointer<QRhiBuffer> toGpuBuffer(rhi->newBuffer(type, QRhiBuffer::UsageFlag::StorageBuffer, blocks["toGpu"].knownSize));
+        QVERIFY(toGpuBuffer->create());
+
+        QScopedPointer<QRhiBuffer> fromGpuBuffer(rhi->newBuffer(type, QRhiBuffer::UsageFlag::StorageBuffer, blocks["fromGpu"].knownSize));
+        QVERIFY(fromGpuBuffer->create());
+
+        QByteArray toGpuData(blocks["toGpu"].knownSize, 0);
+        reinterpret_cast<float *>(&toGpuData.data()[toGpuMembers["_float"].offset])[0] = 1.0f;
+        reinterpret_cast<float *>(&toGpuData.data()[toGpuMembers["_vec2"].offset])[0] = 2.0f;
+        reinterpret_cast<float *>(&toGpuData.data()[toGpuMembers["_vec2"].offset])[1] = 3.0f;
+        reinterpret_cast<float *>(&toGpuData.data()[toGpuMembers["_vec3"].offset])[0] = 4.0f;
+        reinterpret_cast<float *>(&toGpuData.data()[toGpuMembers["_vec3"].offset])[1] = 5.0f;
+        reinterpret_cast<float *>(&toGpuData.data()[toGpuMembers["_vec3"].offset])[2] = 6.0f;
+        reinterpret_cast<float *>(&toGpuData.data()[toGpuMembers["_vec4"].offset])[0] = 7.0f;
+        reinterpret_cast<float *>(&toGpuData.data()[toGpuMembers["_vec4"].offset])[1] = 8.0f;
+        reinterpret_cast<float *>(&toGpuData.data()[toGpuMembers["_vec4"].offset])[2] = 9.0f;
+        reinterpret_cast<float *>(&toGpuData.data()[toGpuMembers["_vec4"].offset])[3] = 10.0f;
+
+        u->uploadStaticBuffer(toGpuBuffer.data(), 0, toGpuData.size(), toGpuData.constData());
+        u->uploadStaticBuffer(fromGpuBuffer.data(), 0, blocks["fromGpu"].knownSize, QByteArray(blocks["fromGpu"].knownSize, 0).constData());
+
+        QScopedPointer<QRhiShaderResourceBindings> srb(rhi->newShaderResourceBindings());
+        srb->setBindings({QRhiShaderResourceBinding::bufferLoadStore(blocks["toGpu"].binding, QRhiShaderResourceBinding::ComputeStage, toGpuBuffer.data()),
+                          QRhiShaderResourceBinding::bufferLoadStore(blocks["fromGpu"].binding, QRhiShaderResourceBinding::ComputeStage, fromGpuBuffer.data())});
+
+        QVERIFY(srb->create());
+
+        QScopedPointer<QRhiComputePipeline> pipeline(rhi->newComputePipeline());
+        pipeline->setShaderStage({QRhiShaderStage::Compute, s});
+        pipeline->setShaderResourceBindings(srb.data());
+        QVERIFY(pipeline->create());
+
+        cb->beginComputePass(u);
+
+        cb->setComputePipeline(pipeline.data());
+        cb->setShaderResources();
+        cb->dispatch(1, 1, 1);
+
+        u = rhi->nextResourceUpdateBatch();
+        QVERIFY(u);
+
+        int readCompletedNotifications = 0;
+        QRhiReadbackResult result;
+        result.completed = [&readCompletedNotifications]() { readCompletedNotifications++; };
+        u->readBackBuffer(fromGpuBuffer.data(), 0, blocks["fromGpu"].knownSize, &result);
+
+        cb->endComputePass(u);
+
+        rhi->endOffscreenFrame();
+
+        QCOMPARE(readCompletedNotifications, 1);
+
+        QCOMPARE(result.data.size(), blocks["fromGpu"].knownSize);
+        QCOMPARE(reinterpret_cast<const int *>(&result.data.constData()[fromGpuMembers["_int"].offset])[0], 1);
+        QCOMPARE(reinterpret_cast<const int *>(&result.data.constData()[fromGpuMembers["_ivec2"].offset])[0], 2);
+        QCOMPARE(reinterpret_cast<const int *>(&result.data.constData()[fromGpuMembers["_ivec2"].offset])[1], 3);
+        QCOMPARE(reinterpret_cast<const int *>(&result.data.constData()[fromGpuMembers["_ivec3"].offset])[0], 4);
+        QCOMPARE(reinterpret_cast<const int *>(&result.data.constData()[fromGpuMembers["_ivec3"].offset])[1], 5);
+        QCOMPARE(reinterpret_cast<const int *>(&result.data.constData()[fromGpuMembers["_ivec3"].offset])[2], 6);
+        QCOMPARE(reinterpret_cast<const int *>(&result.data.constData()[fromGpuMembers["_ivec4"].offset])[0], 7);
+        QCOMPARE(reinterpret_cast<const int *>(&result.data.constData()[fromGpuMembers["_ivec4"].offset])[1], 8);
+        QCOMPARE(reinterpret_cast<const int *>(&result.data.constData()[fromGpuMembers["_ivec4"].offset])[2], 9);
+        QCOMPARE(reinterpret_cast<const int *>(&result.data.constData()[fromGpuMembers["_ivec4"].offset])[3], 10);
+
+    }
+}
+
+ void tst_QRhi::storageBufferRuntimeSizeCompute_data()
+{
+     rhiTestData();
+}
+
+ void tst_QRhi::storageBufferRuntimeSizeCompute()
+{
+    // Use a compute shader to copy from one storage buffer with std430 runtime
+    // float array to another with std140 runtime int array. We fill the
+    // "toGpu" buffer with known float data generated and uploaded from the
+    // CPU, then dispatch a compute shader to copy from the "toGpu" buffer to
+    // the "fromGpu" buffer. We then readback the "fromGpu" buffer and verify
+    // that the results are as expected.  This is primarily to test Metal
+    // SPIRV-Cross buffer size buffers.
+
+    QFETCH(QRhi::Implementation, impl);
+    QFETCH(QRhiInitParams *, initParams);
+
+    // we can't test with Null as there is no compute
+    if (impl == QRhi::Null)
+        return;
+
+    QScopedPointer<QRhi> rhi(QRhi::create(impl, initParams, QRhi::Flags(), nullptr));
+    if (!rhi)
+        QSKIP("QRhi could not be created, skipping testing");
+
+    if (!rhi->isFeatureSupported(QRhi::Feature::Compute))
+        QSKIP("Compute is not supported with this graphics API, skipping test");
+
+    QShader s = loadShader(":/data/storagebuffer_runtime.comp.qsb");
+    QVERIFY(s.isValid());
+    QCOMPARE(s.description().storageBlocks().size(), 2);
+
+    QMap<QByteArray, QShaderDescription::StorageBlock> blocks;
+    for (const QShaderDescription::StorageBlock &block : s.description().storageBlocks())
+        blocks[block.blockName] = block;
+
+    QMap<QByteArray, QShaderDescription::BlockVariable> toGpuMembers;
+    for (const QShaderDescription::BlockVariable &member : blocks["toGpu"].members)
+        toGpuMembers[member.name] = member;
+
+    QMap<QByteArray, QShaderDescription::BlockVariable> fromGpuMembers;
+    for (const QShaderDescription::BlockVariable &member : blocks["fromGpu"].members)
+        fromGpuMembers[member.name] = member;
+
+    for (QRhiBuffer::Type type : { QRhiBuffer::Type::Immutable, QRhiBuffer::Type::Static }) {
+        QRhiCommandBuffer *cb = nullptr;
+
+        rhi->beginOffscreenFrame(&cb);
+        QVERIFY(cb);
+
+        QRhiResourceUpdateBatch *u = rhi->nextResourceUpdateBatch();
+        QVERIFY(u);
+
+        const int stride430 = sizeof(float);
+        const int stride140 = 4 * sizeof(float);
+        const int length = 32;
+
+        QScopedPointer<QRhiBuffer> toGpuBuffer(
+                    rhi->newBuffer(type, QRhiBuffer::UsageFlag::StorageBuffer,
+                                   blocks["toGpu"].knownSize + length * stride430));
+        QVERIFY(toGpuBuffer->create());
+
+        QScopedPointer<QRhiBuffer> fromGpuBuffer(
+                    rhi->newBuffer(type, QRhiBuffer::UsageFlag::StorageBuffer,
+                                   blocks["fromGpu"].knownSize + length * stride140));
+        QVERIFY(fromGpuBuffer->create());
+
+        QByteArray toGpuData(toGpuBuffer->size(), 0);
+        for (int i = 0; i < length; ++i)
+            reinterpret_cast<float &>(toGpuData.data()[toGpuMembers["_float"].offset + i * stride430]) = float(i);
+
+        u->uploadStaticBuffer(toGpuBuffer.data(), 0, toGpuData.size(), toGpuData.constData());
+        u->uploadStaticBuffer(fromGpuBuffer.data(), 0, blocks["fromGpu"].knownSize,
+                QByteArray(fromGpuBuffer->size(), 0).constData());
+
+        QScopedPointer<QRhiShaderResourceBindings> srb(rhi->newShaderResourceBindings());
+        srb->setBindings(
+                    { QRhiShaderResourceBinding::bufferLoadStore(
+                      blocks["toGpu"].binding, QRhiShaderResourceBinding::ComputeStage,
+                      toGpuBuffer.data()),
+                      QRhiShaderResourceBinding::bufferLoadStore(
+                      blocks["fromGpu"].binding, QRhiShaderResourceBinding::ComputeStage,
+                      fromGpuBuffer.data()) });
+        QVERIFY(srb->create());
+
+        QScopedPointer<QRhiComputePipeline> pipeline(rhi->newComputePipeline());
+        pipeline->setShaderStage({ QRhiShaderStage::Compute, s });
+        pipeline->setShaderResourceBindings(srb.data());
+        QVERIFY(pipeline->create());
+
+        cb->beginComputePass(u);
+
+        cb->setComputePipeline(pipeline.data());
+        cb->setShaderResources();
+        cb->dispatch(1, 1, 1);
+
+        u = rhi->nextResourceUpdateBatch();
+        QVERIFY(u);
+        int readbackCompleted = 0;
+        QRhiReadbackResult result;
+        result.completed = [&readbackCompleted]() { readbackCompleted++; };
+        u->readBackBuffer(fromGpuBuffer.data(), 0, fromGpuBuffer->size(), &result);
+
+        cb->endComputePass(u);
+
+        rhi->endOffscreenFrame();
+
+        QVERIFY(readbackCompleted > 0);
+        QCOMPARE(result.data.size(), fromGpuBuffer->size());
+
+        for (int i = 0; i < length; ++i)
+            QCOMPARE(reinterpret_cast<const int &>(result.data.constData()[fromGpuMembers["_int"].offset + i * stride140]), i);
+
+        QCOMPARE(readbackCompleted, 1);
+
+    }
+
+}
+
+void tst_QRhi::storageBufferRuntimeSizeGraphics_data()
+{
+    rhiTestData();
+}
+
+void tst_QRhi::storageBufferRuntimeSizeGraphics()
+{
+#ifdef Q_OS_ANDROID
+    if (QNativeInterface::QAndroidApplication::sdkVersion() >= 31)
+        QSKIP("Fails on Android 12 (QTBUG-108844)");
+#endif
+    // Draws a tessellated triangle with color determined by the length of
+    // buffers bound to shader stages. This is primarily to test Metal
+    // SPIRV-Cross buffer size buffers.
+
+    QFETCH(QRhi::Implementation, impl);
+    QFETCH(QRhiInitParams *, initParams);
+
+    QScopedPointer<QRhi> rhi(QRhi::create(impl, initParams, QRhi::Flags(), nullptr));
+    if (!rhi)
+        QSKIP("QRhi could not be created, skipping testing rendering");
+
+    if (!rhi->isFeatureSupported(QRhi::Tessellation)) {
+        // From a Vulkan or Metal implementation we expect tessellation to work,
+        // even though it is optional (as per spec) for Vulkan.
+        QVERIFY(rhi->backend() != QRhi::Vulkan);
+        QVERIFY(rhi->backend() != QRhi::Metal);
+        QSKIP("Tessellation is not supported with this graphics API, skipping test");
+    }
+
+    if (rhi->backend() == QRhi::D3D11 || rhi->backend() == QRhi::D3D12)
+        QSKIP("Skipping tessellation test on D3D for now, test assets not prepared for HLSL yet");
+
+    QScopedPointer<QRhiTexture> texture(rhi->newTexture(QRhiTexture::RGBA8, QSize(64, 64), 1,
+                                                        QRhiTexture::RenderTarget | QRhiTexture::UsedAsTransferSource));
+    QVERIFY(texture->create());
+
+    QScopedPointer<QRhiTextureRenderTarget> rt(rhi->newTextureRenderTarget({ texture.data() }));
+    QScopedPointer<QRhiRenderPassDescriptor> rpDesc(rt->newCompatibleRenderPassDescriptor());
+    rt->setRenderPassDescriptor(rpDesc.data());
+    QVERIFY(rt->create());
+
+    static const float triangleVertices[] = {
+        0.0f, 0.5f, 0.0f,
+        -0.5f, -0.5f, 0.0f,
+        0.5f, -0.5f, 0.0f,
+    };
+
+    QRhiResourceUpdateBatch *u = rhi->nextResourceUpdateBatch();
+    QScopedPointer<QRhiBuffer> vbuf(rhi->newBuffer(QRhiBuffer::Immutable, QRhiBuffer::VertexBuffer, sizeof(triangleVertices)));
+    QVERIFY(vbuf->create());
+    u->uploadStaticBuffer(vbuf.data(), triangleVertices);
+
+    QScopedPointer<QRhiBuffer> ubuf(rhi->newBuffer(QRhiBuffer::Dynamic, QRhiBuffer::UniformBuffer, 64));
+    QVERIFY(ubuf->create());
+
+    QMatrix4x4 mvp = rhi->clipSpaceCorrMatrix();
+    u->updateDynamicBuffer(ubuf.data(), 0, 64, mvp.constData());
+
+    QScopedPointer<QRhiBuffer> ssbo5(rhi->newBuffer(QRhiBuffer::Static, QRhiBuffer::StorageBuffer, 256));
+    QVERIFY(ssbo5->create());
+
+    QScopedPointer<QRhiBuffer> ssbo3(rhi->newBuffer(QRhiBuffer::Static, QRhiBuffer::StorageBuffer, 16));
+    QVERIFY(ssbo3->create());
+
+    u->uploadStaticBuffer(ssbo3.data(), QVector<float>({ 1.0f, 1.0f, 1.0f, 1.0f }).constData());
+
+    QScopedPointer<QRhiBuffer> ssbo4(rhi->newBuffer(QRhiBuffer::Static, QRhiBuffer::StorageBuffer, 128));
+    QVERIFY(ssbo4->create());
+
+    const int red = 79;
+    const int green = 43;
+    const int blue = 251;
+
+    QScopedPointer<QRhiBuffer> ssboR(rhi->newBuffer(QRhiBuffer::Static, QRhiBuffer::StorageBuffer, red * sizeof(float)));
+    QVERIFY(ssboR->create());
+
+    QScopedPointer<QRhiBuffer> ssboG(rhi->newBuffer(QRhiBuffer::Static, QRhiBuffer::StorageBuffer, green * sizeof(float)));
+    QVERIFY(ssboG->create());
+
+    QScopedPointer<QRhiBuffer> ssboB(rhi->newBuffer(QRhiBuffer::Static, QRhiBuffer::StorageBuffer, blue * sizeof(float)));
+    QVERIFY(ssboB->create());
+
+    const int tessOuter0 = 1;
+    const int tessOuter1 = 2;
+    const int tessOuter2 = 3;
+    const int tessInner0 = 4;
+
+    QScopedPointer<QRhiBuffer> ssboTessOuter0(rhi->newBuffer(QRhiBuffer::Static, QRhiBuffer::StorageBuffer, tessOuter0 * sizeof(float)));
+    QVERIFY(ssboTessOuter0->create());
+
+    QScopedPointer<QRhiBuffer> ssboTessOuter1(rhi->newBuffer(QRhiBuffer::Static, QRhiBuffer::StorageBuffer, tessOuter1 * sizeof(float)));
+    QVERIFY(ssboTessOuter1->create());
+
+    QScopedPointer<QRhiBuffer> ssboTessOuter2(rhi->newBuffer(QRhiBuffer::Static, QRhiBuffer::StorageBuffer, tessOuter2 * sizeof(float)));
+    QVERIFY(ssboTessOuter2->create());
+
+    QScopedPointer<QRhiBuffer> ssboTessInner0(rhi->newBuffer(QRhiBuffer::Static, QRhiBuffer::StorageBuffer, tessInner0 * sizeof(float)));
+    QVERIFY(ssboTessInner0->create());
+
+
+    QScopedPointer<QRhiShaderResourceBindings> srb(rhi->newShaderResourceBindings());
+    srb->setBindings({ QRhiShaderResourceBinding::uniformBuffer(0, QRhiShaderResourceBinding::VertexStage | QRhiShaderResourceBinding::TessellationEvaluationStage, ubuf.data()),
+                       QRhiShaderResourceBinding::bufferLoad(5, QRhiShaderResourceBinding::VertexStage | QRhiShaderResourceBinding::TessellationEvaluationStage, ssbo5.data()),
+                       QRhiShaderResourceBinding::bufferLoad(3, QRhiShaderResourceBinding::VertexStage | QRhiShaderResourceBinding::TessellationEvaluationStage | QRhiShaderResourceBinding::FragmentStage, ssbo3.data()),
+                       QRhiShaderResourceBinding::bufferLoad(4, QRhiShaderResourceBinding::VertexStage | QRhiShaderResourceBinding::TessellationEvaluationStage, ssbo4.data()),
+                       QRhiShaderResourceBinding::bufferLoad(7, QRhiShaderResourceBinding::TessellationControlStage, ssboTessOuter0.data()),
+                       QRhiShaderResourceBinding::bufferLoad(8, QRhiShaderResourceBinding::TessellationControlStage | QRhiShaderResourceBinding::TessellationEvaluationStage, ssboTessOuter1.data()),
+                       QRhiShaderResourceBinding::bufferLoad(9, QRhiShaderResourceBinding::TessellationControlStage, ssboTessOuter2.data()),
+                       QRhiShaderResourceBinding::bufferLoad(10, QRhiShaderResourceBinding::TessellationControlStage, ssboTessInner0.data()),
+                       QRhiShaderResourceBinding::bufferLoad(1, QRhiShaderResourceBinding::FragmentStage, ssboG.data()),
+                       QRhiShaderResourceBinding::bufferLoad(2, QRhiShaderResourceBinding::FragmentStage, ssboB.data()),
+                       QRhiShaderResourceBinding::bufferLoad(6, QRhiShaderResourceBinding::FragmentStage, ssboR.data()) });
+
+    QVERIFY(srb->create());
+
+    QScopedPointer<QRhiGraphicsPipeline> pipeline(rhi->newGraphicsPipeline());
+
+    pipeline->setTopology(QRhiGraphicsPipeline::Patches);
+    pipeline->setPatchControlPointCount(3);
+
+    pipeline->setShaderStages({
+        { QRhiShaderStage::Vertex, loadShader(":/data/storagebuffer_runtime.vert.qsb") },
+        { QRhiShaderStage::TessellationControl, loadShader(":/data/storagebuffer_runtime.tesc.qsb") },
+        { QRhiShaderStage::TessellationEvaluation, loadShader(":/data/storagebuffer_runtime.tese.qsb") },
+        { QRhiShaderStage::Fragment, loadShader(":/data/storagebuffer_runtime.frag.qsb") }
+    });
+
+    pipeline->setCullMode(QRhiGraphicsPipeline::None);
+
+    QRhiVertexInputLayout inputLayout;
+    inputLayout.setBindings({
+        { 3 * sizeof(float) }
+    });
+    inputLayout.setAttributes({
+        { 0, 0, QRhiVertexInputAttribute::Float3, 0 },
+    });
+
+    pipeline->setVertexInputLayout(inputLayout);
+    pipeline->setShaderResourceBindings(srb.data());
+    pipeline->setRenderPassDescriptor(rpDesc.data());
+
+    QVERIFY(pipeline->create());
+
+    QRhiCommandBuffer *cb = nullptr;
+    QCOMPARE(rhi->beginOffscreenFrame(&cb), QRhi::FrameOpSuccess);
+
+    cb->beginPass(rt.data(), Qt::black, { 1.0f, 0 }, u);
+    cb->setGraphicsPipeline(pipeline.data());
+    cb->setViewport({ 0, 0, float(rt->pixelSize().width()), float(rt->pixelSize().height()) });
+    cb->setShaderResources();
+    QRhiCommandBuffer::VertexInput vbufBinding(vbuf.data(), 0);
+    cb->setVertexInput(0, 1, &vbufBinding);
+    cb->draw(3);
+
+    QRhiReadbackResult readResult;
+    QImage result;
+    readResult.completed = [&readResult, &result] {
+        result = QImage(reinterpret_cast<const uchar *>(readResult.data.constData()),
+                        readResult.pixelSize.width(), readResult.pixelSize.height(),
+                        QImage::Format_RGBA8888);
+    };
+    QRhiResourceUpdateBatch *readbackBatch = rhi->nextResourceUpdateBatch();
+    readbackBatch->readBackTexture({ texture.data() }, &readResult);
+    cb->endPass(readbackBatch);
+
+    rhi->endOffscreenFrame();
+
+    QCOMPARE(result.size(), rt->pixelSize());
+
+    // cannot check rendering results with Null, because there is no rendering there
+    if (impl == QRhi::Null)
+        return;
+
+    QCOMPARE(result.pixel(32, 32), qRgb(red, green, blue));
+}
+
+void tst_QRhi::halfPrecisionAttributes_data()
+{
+    rhiTestData();
+}
+
+void tst_QRhi::halfPrecisionAttributes()
+{
+#ifdef Q_OS_ANDROID
+    if (QNativeInterface::QAndroidApplication::sdkVersion() >= 31)
+        QSKIP("Fails on Android 12 (QTBUG-108844)");
+#endif
+    QFETCH(QRhi::Implementation, impl);
+    QFETCH(QRhiInitParams *, initParams);
+
+    QScopedPointer<QRhi> rhi(QRhi::create(impl, initParams, QRhi::Flags(), nullptr));
+    if (!rhi)
+        QSKIP("QRhi could not be created, skipping testing rendering");
+
+    if (!rhi->isFeatureSupported(QRhi::HalfAttributes)) {
+        QVERIFY(rhi->backend() != QRhi::Vulkan);
+        QVERIFY(rhi->backend() != QRhi::Metal);
+        QVERIFY(rhi->backend() != QRhi::D3D11);
+        QVERIFY(rhi->backend() != QRhi::D3D12);
+        QSKIP("Half precision vertex attributes are not supported with this graphics API, skipping test");
+    }
+
+    const QSize outputSize(1920, 1080);
+    QScopedPointer<QRhiTexture> texture(rhi->newTexture(QRhiTexture::RGBA8, outputSize, 1,
+                                                        QRhiTexture::RenderTarget | QRhiTexture::UsedAsTransferSource));
+    QVERIFY(texture->create());
+
+    QScopedPointer<QRhiTextureRenderTarget> rt(rhi->newTextureRenderTarget({ texture.data() }));
+    QScopedPointer<QRhiRenderPassDescriptor> rpDesc(rt->newCompatibleRenderPassDescriptor());
+    rt->setRenderPassDescriptor(rpDesc.data());
+    QVERIFY(rt->create());
+
+    QRhiCommandBuffer *cb = nullptr;
+    QVERIFY(rhi->beginOffscreenFrame(&cb) == QRhi::FrameOpSuccess);
+    QVERIFY(cb);
+
+    QRhiResourceUpdateBatch *updates = rhi->nextResourceUpdateBatch();
+
+    //
+    // This test uses half3 vertices
+    //
+    // Note: D3D does not support half3 - rhi passes it through as half4.  Because of this, D3D will
+    // report the following warning and error if we don't take precautions:
+    //
+    // D3D11 WARNING: ID3D11DeviceContext::Draw: Input vertex slot 0 has stride 6 which is less than
+    // the minimum stride logically expected from the current Input Layout (8 bytes). This is OK, as
+    // hardware is perfectly capable of reading overlapping data. However the developer probably did
+    // not intend to make use of this behavior. [ EXECUTION WARNING #355:
+    // DEVICE_DRAW_VERTEX_BUFFER_STRIDE_TOO_SMALL]
+    //
+    // D3D11 ERROR: ID3D11DeviceContext::Draw: Vertex Buffer Stride (6) at the input vertex slot 0
+    // is not aligned properly. The current Input Layout imposes an alignment of (4) because of the
+    // Formats used with this slot. [ EXECUTION ERROR #367: DEVICE_DRAW_VERTEX_STRIDE_UNALIGNED]
+    //
+    // The same warning and error are produced for D3D12.  The rendered output is correct despite
+    // the warning and error.
+    //
+    // To avoid these errors, we pad the vertices to 8 byte stride.
+    //
+    static const qfloat16 vertices[] = {
+        -1.0, -1.0, 0.0, 0.0,
+        1.0, -1.0, 0.0, 0.0,
+        0.0, 1.0, 0.0, 0.0,
+    };
+
+    QScopedPointer<QRhiBuffer> vbuf(rhi->newBuffer(QRhiBuffer::Immutable, QRhiBuffer::VertexBuffer, sizeof(vertices)));
+    QVERIFY(vbuf->create());
+    updates->uploadStaticBuffer(vbuf.data(), vertices);
+
+    QScopedPointer<QRhiShaderResourceBindings> srb(rhi->newShaderResourceBindings());
+    QVERIFY(srb->create());
+
+    QScopedPointer<QRhiGraphicsPipeline> pipeline(rhi->newGraphicsPipeline());
+    QShader vs = loadShader(":/data/half.vert.qsb");
+    QVERIFY(vs.isValid());
+    QShader fs = loadShader(":/data/simple.frag.qsb");
+    QVERIFY(fs.isValid());
+    pipeline->setShaderStages({ { QRhiShaderStage::Vertex, vs }, { QRhiShaderStage::Fragment, fs } });
+    QRhiVertexInputLayout inputLayout;
+    inputLayout.setBindings({ { 4 * sizeof(qfloat16) } }); // 8 byte vertex stride for D3D
+    inputLayout.setAttributes({ { 0, 0, QRhiVertexInputAttribute::Half3, 0 } });
+    pipeline->setVertexInputLayout(inputLayout);
+    pipeline->setShaderResourceBindings(srb.data());
+    pipeline->setRenderPassDescriptor(rpDesc.data());
+    QVERIFY(pipeline->create());
+
+    cb->beginPass(rt.data(), Qt::blue, { 1.0f, 0 }, updates);
+    cb->setGraphicsPipeline(pipeline.data());
+    cb->setViewport({ 0, 0, float(outputSize.width()), float(outputSize.height()) });
+    QRhiCommandBuffer::VertexInput vbindings(vbuf.data(), 0);
+    cb->setVertexInput(0, 1, &vbindings);
+    cb->draw(3);
+
+    QRhiReadbackResult readResult;
+    QImage result;
+    readResult.completed = [&readResult, &result] {
+        result = QImage(reinterpret_cast<const uchar *>(readResult.data.constData()),
+                        readResult.pixelSize.width(), readResult.pixelSize.height(),
+                        QImage::Format_RGBA8888_Premultiplied); // non-owning, no copy needed because readResult outlives result
+    };
+    QRhiResourceUpdateBatch *readbackBatch = rhi->nextResourceUpdateBatch();
+    readbackBatch->readBackTexture({ texture.data() }, &readResult);
+    cb->endPass(readbackBatch);
+
+    rhi->endOffscreenFrame();
+    // Offscreen frames are synchronous, so the readback is guaranteed to
+    // complete at this point. This would not be the case with swapchain-based
+    // frames.
+    QCOMPARE(result.size(), texture->pixelSize());
+
+    if (impl == QRhi::Null)
+        return;
+
+    // Now we have a red rectangle on blue background.
+    const int y = 100;
+    const quint32 *p = reinterpret_cast<const quint32 *>(result.constScanLine(y));
+    int x = result.width() - 1;
+    int redCount = 0;
+    int blueCount = 0;
+    const int maxFuzz = 1;
+    while (x-- >= 0) {
+        const QRgb c(*p++);
+        if (qRed(c) >= (255 - maxFuzz) && qGreen(c) == 0 && qBlue(c) == 0)
+            ++redCount;
+        else if (qRed(c) == 0 && qGreen(c) == 0 && qBlue(c) >= (255 - maxFuzz))
+            ++blueCount;
+        else
+            QFAIL("Encountered a pixel that is neither red or blue");
+    }
+
+    QCOMPARE(redCount + blueCount, texture->pixelSize().width());
+    QVERIFY(redCount != 0);
+    QVERIFY(blueCount != 0);
+
+    // The triangle is "pointing up" in the resulting image with OpenGL
+    // (because Y is up both in normalized device coordinates and in images)
+    // and Vulkan (because Y is down in both and the vertex data was specified
+    // with Y up in mind), but "pointing down" with D3D (because Y is up in NDC
+    // but down in images).
+    if (rhi->isYUpInFramebuffer() == rhi->isYUpInNDC())
+        QVERIFY(redCount < blueCount);
+    else
+        QVERIFY(redCount > blueCount);
+
+}
+
 #include <tst_qrhi.moc>
 QTEST_MAIN(tst_QRhi)
diff --git a/tests/auto/gui/rhi/qshader/tst_qshader.cpp b/tests/auto/gui/rhi/qshader/tst_qshader.cpp
index 425b5951..fed2e883 100644
--- a/tests/auto/gui/rhi/qshader/tst_qshader.cpp
+++ b/tests/auto/gui/rhi/qshader/tst_qshader.cpp
@@ -5,8 +5,8 @@
 #include <QFile>
 #include <QBuffer>
 
-#include <QtGui/private/qshaderdescription_p_p.h>
-#include <QtGui/private/qshader_p_p.h>
+#include <private/qshaderdescription_p.h>
+#include <private/qshader_p.h>
 
 class tst_QShader : public QObject
 {
diff --git a/tests/auto/gui/text/CMakeLists.txt b/tests/auto/gui/text/CMakeLists.txt
index 2ba0a967..bad13de7 100644
--- a/tests/auto/gui/text/CMakeLists.txt
+++ b/tests/auto/gui/text/CMakeLists.txt
@@ -26,7 +26,6 @@ endif()
 if(QT_FEATURE_private_tests)
     add_subdirectory(qfontcache)
     add_subdirectory(qtextlayout)
-    add_subdirectory(qzip)
     add_subdirectory(qtextodfwriter)
 endif()
 if(TARGET Qt::Xml)
diff --git a/tests/auto/gui/text/qcssparser/tst_qcssparser.cpp b/tests/auto/gui/text/qcssparser/tst_qcssparser.cpp
index 5ca98345..bb6ed1db 100644
--- a/tests/auto/gui/text/qcssparser/tst_qcssparser.cpp
+++ b/tests/auto/gui/text/qcssparser/tst_qcssparser.cpp
@@ -1543,20 +1543,26 @@ void tst_QCssParser::gradient()
     QList<QCss::StyleRule> rules = testSelector.styleRulesForNode(n);
     QList<QCss::Declaration> decls = rules.at(0).declarations;
     QCss::ValueExtractor ve(decls);
-    QBrush fg, sfg, pfg;
-    QBrush sbg, abg;
-    QVERIFY(ve.extractPalette(&fg, &sfg, &sbg, &abg, &pfg));
+    QBrush foreground;
+    QBrush selectedForeground;
+    QBrush selectedBackground;
+    QBrush alternateBackground;
+    QBrush placeHolderTextForeground;
+    QBrush accent;
+    QVERIFY(ve.extractPalette(&foreground, &selectedForeground, &selectedBackground,
+                              &alternateBackground, &placeHolderTextForeground, &accent));
+
     if (type == "linear") {
-        QCOMPARE(sbg.style(), Qt::LinearGradientPattern);
-        const QLinearGradient *lg = static_cast<const QLinearGradient *>(sbg.gradient());
+        QCOMPARE(selectedBackground.style(), Qt::LinearGradientPattern);
+        const auto *lg = static_cast<const QLinearGradient *>(selectedBackground.gradient());
         QCOMPARE(lg->start(), start);
         QCOMPARE(lg->finalStop(), finalStop);
     } else if (type == "conical") {
-        QCOMPARE(sbg.style(), Qt::ConicalGradientPattern);
-        const QConicalGradient *cg = static_cast<const QConicalGradient *>(sbg.gradient());
+        QCOMPARE(selectedBackground.style(), Qt::ConicalGradientPattern);
+        const auto *cg = static_cast<const QConicalGradient *>(selectedBackground.gradient());
         QCOMPARE(cg->center(), start);
     }
-    const QGradient *g = sbg.gradient();
+    const QGradient *g = selectedBackground.gradient();
     QCOMPARE(g->spread(), QGradient::Spread(spread));
     QCOMPARE(g->stops().at(0).first, stop0);
     QCOMPARE(g->stops().at(0).second, color0);
diff --git a/tests/auto/gui/text/qfont/tst_qfont.cpp b/tests/auto/gui/text/qfont/tst_qfont.cpp
index 76d844b0..15ab10fb 100644
--- a/tests/auto/gui/text/qfont/tst_qfont.cpp
+++ b/tests/auto/gui/text/qfont/tst_qfont.cpp
@@ -54,6 +54,7 @@ private slots:
     void setFamilies();
     void setFamiliesAndFamily_data();
     void setFamiliesAndFamily();
+    void featureAccessors();
 };
 
 // Testing get/set functions
@@ -150,7 +151,7 @@ void tst_QFont::italicOblique()
                     continue;
                 }
                 QFont f = QFontDatabase::font(family, style, 12);
-                QVERIFY(f.italic());
+                QVERIFY2(f.italic(), qPrintable(QString::asprintf("Failed for font \"%ls\"", qUtf16Printable(f.family()))));
             }
         }
     }
@@ -841,5 +842,37 @@ void tst_QFont::setFamiliesAndFamily()
     QFontDatabase::removeApplicationFont(weirdFontId);
 }
 
+void tst_QFont::featureAccessors()
+{
+    QFont font;
+    QVERIFY(font.featureTags().isEmpty());
+    font.setFeature("abcd", 0xc0ffee);
+
+    quint32 abcdTag = QFont::stringToTag("abcd");
+    quint32 bcdeTag = QFont::stringToTag("bcde");
+    QVERIFY(font.isFeatureSet(abcdTag));
+    QVERIFY(!font.isFeatureSet(bcdeTag));
+    QCOMPARE(font.featureTags().size(), 1);
+    QCOMPARE(font.featureTags().first(), abcdTag);
+    QCOMPARE(QFont::tagToString(font.featureTags().first()), QByteArray("abcd"));
+    QCOMPARE(font.featureValue(abcdTag), 0xc0ffeeU);
+    QCOMPARE(font.featureValue(bcdeTag), 0U);
+    font.setFeature(abcdTag, 0xf00d);
+    QCOMPARE(font.featureTags().size(), 1);
+    QCOMPARE(font.featureValue(abcdTag), 0xf00dU);
+    font.setFeature("abcde", 0xcaca0);
+    QVERIFY(!font.isFeatureSet(QFont::stringToTag("abcde")));
+    QCOMPARE(font.featureTags().size(), 1);
+    QFont font2 = font;
+
+    font.unsetFeature("abcd");
+    QVERIFY(!font.isFeatureSet(QFont::stringToTag("abcd")));
+    QVERIFY(font.featureTags().isEmpty());
+
+    QVERIFY(font2.isFeatureSet(QFont::stringToTag("abcd")));
+    font2.clearFeatures();
+    QVERIFY(font.featureTags().isEmpty());
+}
+
 QTEST_MAIN(tst_QFont)
 #include "tst_qfont.moc"
diff --git a/tests/auto/gui/text/qglyphrun/tst_qglyphrun.cpp b/tests/auto/gui/text/qglyphrun/tst_qglyphrun.cpp
index 9660d829..9bc93919 100644
--- a/tests/auto/gui/text/qglyphrun/tst_qglyphrun.cpp
+++ b/tests/auto/gui/text/qglyphrun/tst_qglyphrun.cpp
@@ -967,7 +967,7 @@ void tst_QGlyphRun::objectReplacementCharacter()
     QList<QGlyphRun> glyphRuns = layout.glyphRuns();
     QCOMPARE(glyphRuns.size(), 1);
     QCOMPARE(glyphRuns.first().glyphIndexes().size(), 1);
-    QCOMPARE(glyphRuns.first().glyphIndexes().first(), 5);
+    QCOMPARE(glyphRuns.first().glyphIndexes().first(), uint(5));
 }
 
 #endif // QT_NO_RAWFONT
diff --git a/tests/auto/gui/text/qtextcursor/tst_qtextcursor.cpp b/tests/auto/gui/text/qtextcursor/tst_qtextcursor.cpp
index 639e2e27..1780b321 100644
--- a/tests/auto/gui/text/qtextcursor/tst_qtextcursor.cpp
+++ b/tests/auto/gui/text/qtextcursor/tst_qtextcursor.cpp
@@ -1545,15 +1545,20 @@ void tst_QTextCursor::insertMarkdown_data()
             << 6 << QString("0) eggs\n1) maple syrup\n")
             << QString("bread\u2029eggs\u2029maple syrup\u2029milk")
             << QString("bread\neggs\nmaple syrup\nmilk")
-            << QString("1)  bread\n2)  eggs\n1)  maple syrup\n2)  milk\n");
-            // renumbering would happen if we re-read the whole document
+            << QString("1)  bread\n2)  eggs\n0)  maple syrup\n1)  milk\n");
+    // Renumbering would happen if we re-read the whole document.
+    // Currently insertion only uses the new list format after a paragraph separator.
+    // For that reason "bread" and "eggs" use the original list format, while "maple syrup" and
+    // "milk" use the format from the just inserted list.
 
     QTest::newRow("list after a list")
             << "1) bread\n2) milk\n\n" << 2
             << 13 << QString("\n0) eggs\n1) maple syrup\n")
             << QString("bread\u2029milk\u2029eggs\u2029maple syrup")
             << QString("bread\nmilk\neggs\nmaple syrup")
-            << QString("1)  bread\n2)  milk\n3)  eggs\n1)  maple syrup\n");
+            << QString("1)  bread\n2)  milk\n3)  eggs\n0)  maple syrup\n");
+    // Same behavior as above. "eggs" uses the original list format, but "maple syrup" uses the
+    // format of the inserted list, which means "maple syrup" now has a start of 0.
 
     const QString markdownHeadingString("# Hello\nWorld\n");
 
diff --git a/tests/auto/gui/text/qtextdocument/tst_qtextdocument.cpp b/tests/auto/gui/text/qtextdocument/tst_qtextdocument.cpp
index dc93c868..f6527fbf 100644
--- a/tests/auto/gui/text/qtextdocument/tst_qtextdocument.cpp
+++ b/tests/auto/gui/text/qtextdocument/tst_qtextdocument.cpp
@@ -1780,6 +1780,22 @@ void tst_QTextDocument::toHtml_data()
                        "<li class=\"unchecked\" style=\" margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;\">unchecked item</li>\n"
                        "<li class=\"checked\" style=\" margin-top:0px; margin-bottom:12px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;\">checked item</li></ul>");
     }
+
+    {
+        CREATE_DOC_AND_CURSOR();
+
+        QTextListFormat fmt;
+        fmt.setStyle(QTextListFormat::ListDecimal);
+        fmt.setStart(4);
+        cursor.insertList(fmt);
+        cursor.insertText("Blah");
+        cursor.insertBlock();
+        cursor.insertText("Bleh");
+
+        QTest::newRow("ordered list with start") << QTextDocumentFragment(&doc)
+            << QString("EMPTYBLOCK") +
+               QString("<ol start=\"4\" style=\"margin-top: 0px; margin-bottom: 0px; margin-left: 0px; margin-right: 0px; -qt-list-indent: 1;\">\n<li style=\" margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;\">Blah</li>\n<li style=\" margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;\">Bleh</li></ol>");
+    }
 }
 
 void tst_QTextDocument::toHtml()
diff --git a/tests/auto/gui/text/qtextdocumentfragment/tst_qtextdocumentfragment.cpp b/tests/auto/gui/text/qtextdocumentfragment/tst_qtextdocumentfragment.cpp
index 4cc4a253..ca23c56b 100644
--- a/tests/auto/gui/text/qtextdocumentfragment/tst_qtextdocumentfragment.cpp
+++ b/tests/auto/gui/text/qtextdocumentfragment/tst_qtextdocumentfragment.cpp
@@ -96,6 +96,7 @@ private slots:
     void html_thCentered();
     void orderedListNumbering();
     void html_blockAfterList();
+    void html_listStartAttribute();
     void html_subAndSuperScript();
     void html_cssColors();
     void obeyFragmentMarkersInImport();
@@ -1471,6 +1472,22 @@ void tst_QTextDocumentFragment::html_blockAfterList()
     QCOMPARE(cursor.blockFormat().indent(), 0);
 }
 
+void tst_QTextDocumentFragment::html_listStartAttribute()
+{
+    const char html[] = "<ol start=-1><li>Foo</ol><ol><li>Bar</ol>";
+    cursor.insertFragment(QTextDocumentFragment::fromHtml(html));
+
+    cursor.movePosition(QTextCursor::Start);
+
+    QVERIFY(cursor.currentList());
+    QCOMPARE(cursor.currentList()->format().start(), -1);
+
+    QVERIFY(cursor.movePosition(QTextCursor::NextBlock));
+
+    QVERIFY(cursor.currentList());
+    QCOMPARE(cursor.currentList()->format().start(), 1);
+}
+
 void tst_QTextDocumentFragment::html_subAndSuperScript()
 {
     const char subHtml[] = "<sub>Subby</sub>";
diff --git a/tests/auto/gui/text/qtextlist/tst_qtextlist.cpp b/tests/auto/gui/text/qtextlist/tst_qtextlist.cpp
index 134249ee..b2d880f6 100644
--- a/tests/auto/gui/text/qtextlist/tst_qtextlist.cpp
+++ b/tests/auto/gui/text/qtextlist/tst_qtextlist.cpp
@@ -36,6 +36,8 @@ private slots:
     void blockUpdate();
     void numbering_data();
     void numbering();
+    void start_data();
+    void start();
 
 private:
     QTextDocument *doc;
@@ -400,5 +402,61 @@ void tst_QTextList::numbering()
     QCOMPARE(cursor.currentList()->itemText(cursor.block()), result);
 }
 
+void tst_QTextList::start_data()
+{
+    QTest::addColumn<int>("format");
+    QTest::addColumn<int>("start");
+    QTest::addColumn<QStringList>("expectedItemTexts");
+
+    QTest::newRow("-1.") << int(QTextListFormat::ListDecimal) << -1
+                         << QStringList{ "-1.", "0.", "1." };
+    QTest::newRow("0.") << int(QTextListFormat::ListDecimal) << 0
+                        << QStringList{ "0.", "1.", "2." };
+    QTest::newRow("1.") << int(QTextListFormat::ListDecimal) << 1
+                        << QStringList{ "1.", "2.", "3." };
+
+    QTest::newRow("A. -1") << int(QTextListFormat::ListUpperAlpha) << -1
+                           << QStringList{ "-1.", "0.", "A." };
+    QTest::newRow("A. 0.") << int(QTextListFormat::ListUpperAlpha) << 0
+                           << QStringList{ "0.", "A.", "B." };
+    QTest::newRow("a. -1") << int(QTextListFormat::ListLowerAlpha) << -1
+                           << QStringList{ "-1.", "0.", "a." };
+    QTest::newRow("a. 0.") << int(QTextListFormat::ListLowerAlpha) << 0
+                           << QStringList{ "0.", "a.", "b." };
+    QTest::newRow("d. 4.") << int(QTextListFormat::ListLowerAlpha) << 4
+                           << QStringList{ "d.", "e.", "f." };
+
+    QTest::newRow("I. -1") << int(QTextListFormat::ListUpperRoman) << -1
+                           << QStringList{ "-1.", "0.", "I." };
+    QTest::newRow("I. 0.") << int(QTextListFormat::ListUpperRoman) << 0
+                           << QStringList{ "0.", "I.", "II." };
+    QTest::newRow("i. -1") << int(QTextListFormat::ListLowerRoman) << -1
+                           << QStringList{ "-1.", "0.", "i." };
+    QTest::newRow("i. 0.") << int(QTextListFormat::ListLowerRoman) << 0
+                           << QStringList{ "0.", "i.", "ii." };
+}
+
+void tst_QTextList::start()
+{
+    QFETCH(int, format);
+    QFETCH(int, start);
+    QFETCH(QStringList, expectedItemTexts);
+
+    QTextListFormat fmt;
+    fmt.setStyle(QTextListFormat::Style(format));
+    fmt.setStart(start);
+    QTextList *list = cursor.createList(fmt);
+    QVERIFY(list);
+
+    while (list->count() < int(expectedItemTexts.size()))
+        cursor.insertBlock();
+
+    QCOMPARE(list->count(), expectedItemTexts.size());
+
+    for (int i = 0; i < list->count(); ++i)
+        QCOMPARE(cursor.currentList()->itemText(cursor.currentList()->item(i)),
+                 expectedItemTexts[i]);
+}
+
 QTEST_MAIN(tst_QTextList)
 #include "tst_qtextlist.moc"
diff --git a/tests/auto/gui/text/qtextmarkdownimporter/tst_qtextmarkdownimporter.cpp b/tests/auto/gui/text/qtextmarkdownimporter/tst_qtextmarkdownimporter.cpp
index 686187cc..a9b519f2 100644
--- a/tests/auto/gui/text/qtextmarkdownimporter/tst_qtextmarkdownimporter.cpp
+++ b/tests/auto/gui/text/qtextmarkdownimporter/tst_qtextmarkdownimporter.cpp
@@ -182,36 +182,58 @@ void tst_QTextMarkdownImporter::thematicBreaks()
 void tst_QTextMarkdownImporter::lists_data()
 {
     QTest::addColumn<QString>("input");
+    QTest::addColumn<int>("skipToCheckStart");
+    QTest::addColumn<int>("expectedListStart");
     QTest::addColumn<int>("expectedItemCount");
     QTest::addColumn<bool>("expectedEmptyItems");
     QTest::addColumn<QString>("rewrite");
 
     // Some of these cases show odd behavior, which is subject to change
     // as the importer and the writer are tweaked to fix bugs over time.
-    QTest::newRow("dot newline") << ".\n" << 0 << true << ".\n\n";
-    QTest::newRow("number dot newline") << "1.\n" << 1 << true << "1.  \n";
-    QTest::newRow("star newline") << "*\n" << 1 << true << "* \n";
-    QTest::newRow("hyphen newline") << "-\n" << 1 << true << "- \n";
-    QTest::newRow("hyphen space newline") << "- \n" << 1 << true << "- \n";
-    QTest::newRow("hyphen space letter newline") << "- a\n" << 1 << false << "- a\n";
+    QTest::newRow("dot newline") << ".\n" << 0 << 1 << 0 << true << ".\n\n";
+    QTest::newRow("number dot newline") << "1.\n" << 0 << 1 << 1 << true << "1.  \n";
+    QTest::newRow("number offset start") << "2. text\n" << 0 << 2 << 1 << false << "2.  text\n";
+    QTest::newRow("second list offset start")
+            << "1. text\n\nintervening paragraph\n\n4. second list item"
+            << 2 << 4 << 2 << false
+            << "1.  text\n\nintervening paragraph\n\n4.  second list item\n";
+    QTest::newRow("list continuation offset start")
+            << "3. text\n\n   next paragraph in item 1\n10. second list item"
+            << 2 << 3 << 2 << false
+            << "3.  text\n\n    next paragraph in item 1\n\n4.  second list item\n";
+    QTest::newRow("nested list offset start")
+            << "1. text\n\n    0. indented list item\n\n4. second item in first list"
+            << 1 << 0 << 3 << false
+            << "1.  text\n    0.  indented list item\n2.  second item in first list\n";
+    QTest::newRow("offset start after nested list")
+            << "1. text\n\n    0. indented list item\n\n4. second item in first list"
+            << 2 << 1 << 3 << false
+            << "1.  text\n    0.  indented list item\n2.  second item in first list\n";
+    QTest::newRow("star newline") << "*\n" << 0 << 1 << 1 << true << "* \n";
+    QTest::newRow("hyphen newline") << "-\n" << 0 << 1 << 1 << true << "- \n";
+    QTest::newRow("hyphen space newline") << "- \n" << 0 << 1 << 1 << true << "- \n";
+    QTest::newRow("hyphen space letter newline") << "- a\n" << 0 << 1 << 1 << false << "- a\n";
     QTest::newRow("hyphen nbsp newline") <<
-        QString::fromUtf8("-\u00A0\n") << 0 << true << "-\u00A0\n\n";
-    QTest::newRow("nested empty lists") << "*\n  *\n  *\n" << 1 << true << "  * \n";
-    QTest::newRow("list nested in empty list") << "-\n  * a\n" << 2 << false << "- \n  * a\n";
+        QString::fromUtf8("-\u00A0\n") << 0 << 1 << 0 << true << "-\u00A0\n\n";
+    QTest::newRow("nested empty lists") << "*\n  *\n  *\n" << 0 << 1 << 1 << true << "  * \n";
+    QTest::newRow("list nested in empty list") << "-\n  * a\n" << 0 << 1 << 2 << false << "- \n  * a\n";
     QTest::newRow("lists nested in empty lists")
-            << "-\n  * a\n  * b\n- c\n  *\n    + d\n" << 5 << false
+            << "-\n  * a\n  * b\n- c\n  *\n    + d\n" << 0 << 1 << 5 << false
             << "- \n  * a\n  * b\n- c *\n  + d\n";
     QTest::newRow("numeric lists nested in empty lists")
-            << "- \n    1.  a\n    2.  b\n- c\n  1.\n       + d\n" << 4 << false
+            << "- \n    1.  a\n    2.  b\n- c\n  1.\n       + d\n" << 0 << 1 << 4 << false
             << "- \n    1.  a\n    2.  b\n- c 1. + d\n";
     QTest::newRow("styled spans in list items")
-            << "1.  normal text\n2.  **bold** text\n3.  `code` in the item\n4.  *italic* text\n5.  _underlined_ text\n" << 5 << false
+            << "1.  normal text\n2.  **bold** text\n3.  `code` in the item\n4.  *italic* text\n5.  _underlined_ text\n"
+            << 0 << 1 << 5 << false
             << "1.  normal text\n2.  **bold** text\n3.  `code` in the item\n4.  *italic* text\n5.  _underlined_ text\n";
 }
 
 void tst_QTextMarkdownImporter::lists()
 {
     QFETCH(QString, input);
+    QFETCH(int, skipToCheckStart);
+    QFETCH(int, expectedListStart);
     QFETCH(int, expectedItemCount);
     QFETCH(bool, expectedEmptyItems);
     QFETCH(QString, rewrite);
@@ -227,6 +249,8 @@ void tst_QTextMarkdownImporter::lists()
         out.close();
     }
 #endif
+    qCDebug(lcTests) << " original:" << input;
+    qCDebug(lcTests) << "rewritten:" << doc.toMarkdown();
 
     QTextFrame::iterator iterator = doc.rootFrame()->begin();
     QTextFrame *currentFrame = iterator.currentFrame();
@@ -239,10 +263,12 @@ void tst_QTextMarkdownImporter::lists()
         QCOMPARE(iterator.currentFrame(), currentFrame);
         // Check whether the block is text or a horizontal rule
         QTextBlock block = iterator.currentBlock();
+        QTextListFormat listFmt;
         if (block.textList()) {
             ++itemCount;
             if (!block.text().isEmpty())
                 emptyItems = false;
+            listFmt = block.textList()->format();
         }
         qCDebug(lcTests, "%d %s%s", i,
                 (block.textList() ? "<li>" : "<p>"), qPrintable(block.text()));
@@ -261,6 +287,11 @@ void tst_QTextMarkdownImporter::lists()
         QCOMPARE(listItemFmt.fontItalic(), false);
         QCOMPARE(listItemFmt.fontUnderline(), false);
         QCOMPARE(listItemFmt.fontFixedPitch(), false);
+        if (i == skipToCheckStart) {
+            qCDebug(lcTests) << "skipped to list item" << i << block.text()
+                             << "start" << listFmt.start() << "expected" << expectedListStart;
+            QCOMPARE(listFmt.start(), expectedListStart);
+        }
         ++iterator;
         ++i;
     }
diff --git a/tests/auto/gui/text/qtextmarkdownwriter/tst_qtextmarkdownwriter.cpp b/tests/auto/gui/text/qtextmarkdownwriter/tst_qtextmarkdownwriter.cpp
index 2b6b1ecc..36b494e5 100644
--- a/tests/auto/gui/text/qtextmarkdownwriter/tst_qtextmarkdownwriter.cpp
+++ b/tests/auto/gui/text/qtextmarkdownwriter/tst_qtextmarkdownwriter.cpp
@@ -34,6 +34,7 @@ private slots:
     void testWriteNestedBulletLists_data();
     void testWriteNestedBulletLists();
     void testWriteNestedNumericLists();
+    void testWriteNumericListWithStart();
     void testWriteTable();
     void rewriteDocument_data();
     void rewriteDocument();
@@ -284,6 +285,7 @@ void tst_QTextMarkdownWriter::testWriteNestedNumericLists()
     list1->add(cursor.block());
 
     QTextListFormat fmt2;
+    // Alpha "numbering" is not supported in markdown, so we'll actually get decimal.
     fmt2.setStyle(QTextListFormat::ListLowerAlpha);
     fmt2.setNumberSuffix(QLatin1String(")"));
     fmt2.setIndent(2);
@@ -305,7 +307,24 @@ void tst_QTextMarkdownWriter::testWriteNestedNumericLists()
     list2->add(cursor.block());
 
     const QString output = documentToUnixMarkdown();
-    // There's no QTextList API to set the starting number so we hard-coded all lists to start at 1 (QTBUG-65384)
+
+ #ifdef DEBUG_WRITE_OUTPUT
+    {
+        QFile out(QDir::temp().filePath(QLatin1String(QTest::currentTestFunction()) + ".md"));
+        out.open(QFile::WriteOnly);
+        out.write(output.toUtf8());
+        out.close();
+    }
+    {
+        QFile out(QDir::temp().filePath(QLatin1String(QTest::currentTestFunction()) + ".html"));
+        out.open(QFile::WriteOnly);
+        out.write(document->toHtml().toUtf8());
+        out.close();
+    }
+#endif
+
+    // While we can set the start index for a block, if list items intersect each other, they will
+    // still use the list numbering.
     const QString expected = QString::fromLatin1(
                 "1.  ListItem 1\n    1)  ListItem 2\n        1.  ListItem 3\n2.  ListItem 4\n    2)  ListItem 5\n");
     if (output != expected && isMainFontFixed())
@@ -313,6 +332,92 @@ void tst_QTextMarkdownWriter::testWriteNestedNumericLists()
     QCOMPARE(output, expected);
 }
 
+void tst_QTextMarkdownWriter::testWriteNumericListWithStart()
+{
+    QTextCursor cursor(document);
+
+    // The first list will start at 2.
+    QTextListFormat fmt1;
+    fmt1.setStyle(QTextListFormat::ListDecimal);
+    fmt1.setStart(2);
+    QTextList *list1 = cursor.createList(fmt1);
+    cursor.insertText("ListItem 1");
+    list1->add(cursor.block());
+
+    // This list uses the default start (1) again.
+    QTextListFormat fmt2;
+    // Alpha "numbering" is not supported in markdown, so we'll actually get decimal.
+    fmt2.setStyle(QTextListFormat::ListLowerAlpha);
+    fmt2.setNumberSuffix(QLatin1String(")"));
+    fmt2.setIndent(2);
+    QTextList *list2 = cursor.insertList(fmt2);
+    cursor.insertText("ListItem 2");
+
+    // Negative list numbers are disallowed by most Markdown implementations. This list will start
+    // at 1 for that reason.
+    QTextListFormat fmt3;
+    fmt3.setStyle(QTextListFormat::ListDecimal);
+    fmt3.setIndent(3);
+    fmt3.setStart(-1);
+    cursor.insertList(fmt3);
+    cursor.insertText("ListItem 3");
+
+    // Continuing list1, so the second item will have the number 3.
+    cursor.insertBlock();
+    cursor.insertText("ListItem 4");
+    list1->add(cursor.block());
+
+    // This will look out of place: it's in a different position than its list would suggest.
+    // Generates invalid markdown numbering (OK for humans, but md4c will parse it differently than we "meant").
+    // TODO QTBUG-111707: the writer needs to add newlines, otherwise ListItem 5 becomes part of the text for ListItem 4.
+    cursor.insertBlock();
+    cursor.insertText("ListItem 5");
+    list2->add(cursor.block());
+
+    // 0 indexed lists are fine.
+    QTextListFormat fmt4;
+    fmt4.setStyle(QTextListFormat::ListDecimal);
+    fmt4.setStart(0);
+    QTextList *list4 = cursor.insertList(fmt4);
+    cursor.insertText("SecondList Item 0");
+    list4->add(cursor.block());
+
+    // Ensure list numbers are incremented properly.
+    cursor.insertBlock();
+    cursor.insertText("SecondList Item 1");
+    list4->add(cursor.block());
+
+    const QString output = documentToUnixMarkdown();
+    const QString expected = QString::fromLatin1(
+            R"(2.  ListItem 1
+    1)  ListItem 2
+        1.  ListItem 3
+3.  ListItem 4
+    2)  ListItem 5
+0.  SecondList Item 0
+1.  SecondList Item 1
+)");
+
+#ifdef DEBUG_WRITE_OUTPUT
+   {
+       QFile out(QDir::temp().filePath(QLatin1String(QTest::currentTestFunction()) + ".md"));
+       out.open(QFile::WriteOnly);
+       out.write(output.toUtf8());
+       out.close();
+   }
+   {
+       QFile out(QDir::temp().filePath(QLatin1String(QTest::currentTestFunction()) + ".html"));
+       out.open(QFile::WriteOnly);
+       out.write(document->toHtml().toUtf8());
+       out.close();
+   }
+#endif
+
+    if (output != expected && isMainFontFixed())
+        QEXPECT_FAIL("", "fixed-pitch main font (QTBUG-103484)", Continue);
+    QCOMPARE(output, expected);
+}
+
 void tst_QTextMarkdownWriter::testWriteTable()
 {
     QTextCursor cursor(document);
diff --git a/tests/auto/network/CMakeLists.txt b/tests/auto/network/CMakeLists.txt
index 9150fe3d..9b15208f 100644
--- a/tests/auto/network/CMakeLists.txt
+++ b/tests/auto/network/CMakeLists.txt
@@ -14,7 +14,7 @@ if (QT_FEATURE_private_tests)
     endif()
 endif()
 
-# add_subdirectory(selftest) # special case not ported
+# add_subdirectory(selftest) # TODO: not ported
 add_subdirectory(access)
 add_subdirectory(kernel)
 add_subdirectory(ssl)
diff --git a/tests/auto/network/access/qnetworkdiskcache/tst_qnetworkdiskcache.cpp b/tests/auto/network/access/qnetworkdiskcache/tst_qnetworkdiskcache.cpp
index eb9d30d4..39199c91 100644
--- a/tests/auto/network/access/qnetworkdiskcache/tst_qnetworkdiskcache.cpp
+++ b/tests/auto/network/access/qnetworkdiskcache/tst_qnetworkdiskcache.cpp
@@ -751,7 +751,7 @@ public:
                 cache.remove(url);
             if (QRandomGenerator::global()->bounded(5) == 1)
                 cache.clear();
-            sleep(0);
+            sleep(std::chrono::seconds{0});
         }
     }
 
diff --git a/tests/auto/network/access/qnetworkreply/tst_qnetworkreply.cpp b/tests/auto/network/access/qnetworkreply/tst_qnetworkreply.cpp
index 2675df50..14b104fd 100644
--- a/tests/auto/network/access/qnetworkreply/tst_qnetworkreply.cpp
+++ b/tests/auto/network/access/qnetworkreply/tst_qnetworkreply.cpp
@@ -8140,7 +8140,7 @@ class Qtbug25280Server : public MiniHttpServer
 public:
     Qtbug25280Server(QByteArray qba) : MiniHttpServer(qba, false) {}
     QSet<QTcpSocket*> receivedSockets;
-    virtual void reply()
+    void reply() override
     {
         // Save sockets in a list
         receivedSockets.insert((QTcpSocket*)sender());
diff --git a/tests/auto/network/kernel/CMakeLists.txt b/tests/auto/network/kernel/CMakeLists.txt
index 2f5f935f..b42a9724 100644
--- a/tests/auto/network/kernel/CMakeLists.txt
+++ b/tests/auto/network/kernel/CMakeLists.txt
@@ -1,7 +1,7 @@
 # Copyright (C) 2022 The Qt Company Ltd.
 # SPDX-License-Identifier: BSD-3-Clause
 
-if(NOT INTEGRITY)
+if(QT_FEATURE_dnslookup AND (QT_FEATURE_libresolv OR WIN32))
     add_subdirectory(qdnslookup)
     add_subdirectory(qdnslookup_appless)
 endif()
diff --git a/tests/auto/network/kernel/qdnslookup/CMakeLists.txt b/tests/auto/network/kernel/qdnslookup/CMakeLists.txt
index 1c8f1718..28f46b5b 100644
--- a/tests/auto/network/kernel/qdnslookup/CMakeLists.txt
+++ b/tests/auto/network/kernel/qdnslookup/CMakeLists.txt
@@ -12,3 +12,8 @@ qt_internal_add_test(tst_qdnslookup
         Qt::Network
         Qt::TestPrivate
 )
+
+qt_internal_extend_target(tst_qdnslookup CONDITION WIN32
+    LIBRARIES
+        iphlpapi
+)
diff --git a/tests/auto/network/kernel/qdnslookup/tst_qdnslookup.cpp b/tests/auto/network/kernel/qdnslookup/tst_qdnslookup.cpp
index c11a3db5..64455b0e 100644
--- a/tests/auto/network/kernel/qdnslookup/tst_qdnslookup.cpp
+++ b/tests/auto/network/kernel/qdnslookup/tst_qdnslookup.cpp
@@ -8,7 +8,18 @@
 #include <QtTest/private/qpropertytesthelper_p.h>
 
 #include <QtNetwork/QDnsLookup>
+
+#include <QtCore/QRandomGenerator>
 #include <QtNetwork/QHostAddress>
+#include <QtNetwork/QNetworkDatagram>
+#include <QtNetwork/QUdpSocket>
+
+#ifdef Q_OS_UNIX
+#  include <QtCore/QFile>
+#else
+#  include <winsock2.h>
+#  include <iphlpapi.h>
+#endif
 
 using namespace Qt::StringLiterals;
 static const int Timeout = 15000; // 15s
@@ -29,6 +40,8 @@ public slots:
     void initTestCase();
 
 private slots:
+    void lookupLocalhost();
+    void lookupRoot();
     void lookup_data();
     void lookup();
     void lookupIdn_data() { lookup_data(); }
@@ -36,10 +49,125 @@ private slots:
 
     void lookupReuse();
     void lookupAbortRetry();
+    void setNameserverLoopback();
+    void setNameserver_data();
+    void setNameserver();
     void bindingsAndProperties();
     void automatedBindings();
 };
 
+static constexpr qsizetype HeaderSize = 6 * sizeof(quint16);
+static const char preparedDnsQuery[] =
+        // header
+        "\x00\x00"              // transaction ID, we'll replace
+        "\x01\x20"              // flags
+        "\x00\x01"              // qdcount
+        "\x00\x00"              // ancount
+        "\x00\x00"              // nscount
+        "\x00\x00"              // arcount
+        // query:
+        "\x00\x00\x06\x00\x01"  // <root domain> IN SOA
+        ;
+
+static QList<QHostAddress> systemNameservers()
+{
+    QList<QHostAddress> result;
+
+#ifdef Q_OS_WIN
+    ULONG infosize = 0;
+    DWORD r = GetNetworkParams(nullptr, &infosize);
+    auto buffer = std::make_unique<uchar[]>(infosize);
+    auto info = new (buffer.get()) FIXED_INFO;
+    r = GetNetworkParams(info, &infosize);
+    if (r == NO_ERROR) {
+        for (PIP_ADDR_STRING ptr = &info->DnsServerList; ptr; ptr = ptr->Next) {
+            QLatin1StringView addr(ptr->IpAddress.String);
+            result.emplaceBack(addr);
+        }
+    }
+#else
+    QFile f("/etc/resolv.conf");
+    if (!f.open(QIODevice::ReadOnly))
+        return result;
+
+    while (!f.atEnd()) {
+        static const char command[] = "nameserver";
+        QByteArray line = f.readLine().simplified();
+        if (!line.startsWith(command))
+            continue;
+
+        QString addr = QLatin1StringView(line).mid(sizeof(command));
+        result.emplaceBack(addr);
+    }
+#endif
+
+    return result;
+}
+
+static QList<QHostAddress> globalPublicNameservers()
+{
+    const char *const candidates[] = {
+        // Google's dns.google
+        "8.8.8.8", "2001:4860:4860::8888",
+        //"8.8.4.4", "2001:4860:4860::8844",
+
+        // CloudFare's one.one.one.one
+        "1.1.1.1", "2606:4700:4700::1111",
+        //"1.0.0.1", "2606:4700:4700::1001",
+
+        // Quad9's dns9
+        //"9.9.9.9", "2620:fe::9",
+    };
+
+    QList<QHostAddress> result;
+    QRandomGenerator &rng = *QRandomGenerator::system();
+    for (auto name : candidates) {
+        // check the candidates for reachability
+        QHostAddress addr{QLatin1StringView(name)};
+        quint16 id = quint16(rng());
+        QByteArray data(preparedDnsQuery, sizeof(preparedDnsQuery));
+        char *ptr = data.data();
+        qToBigEndian(id, ptr);
+
+        QUdpSocket socket;
+        socket.connectToHost(addr, 53);
+        if (socket.waitForConnected(1))
+            socket.write(data);
+
+        if (!socket.waitForReadyRead(1000)) {
+            qDebug() << addr << "discarded:" << socket.errorString();
+            continue;
+        }
+
+        QNetworkDatagram dgram = socket.receiveDatagram();
+        if (!dgram.isValid()) {
+            qDebug() << addr << "discarded:" << socket.errorString();
+            continue;
+        }
+
+        data = dgram.data();
+        ptr = data.data();
+        if (data.size() < HeaderSize) {
+            qDebug() << addr << "discarded: reply too small";
+            continue;
+        }
+
+        bool ok = qFromBigEndian<quint16>(ptr) == id
+                && (ptr[2] & 0x80)                          // is a reply
+                && (ptr[3] & 0xf) == 0                      // rcode NOERROR
+                && qFromBigEndian<quint16>(ptr + 4) == 1    // qdcount
+                && qFromBigEndian<quint16>(ptr + 6) >= 1;   // ancount
+        if (!ok) {
+            qDebug() << addr << "discarded: invalid reply";
+            continue;
+        }
+
+        result.emplaceBack(std::move(addr));
+    }
+
+    return result;
+}
+
 void tst_QDnsLookup::initTestCase()
 {
     if (qgetenv("QTEST_ENVIRONMENT") == "ci")
@@ -82,6 +210,39 @@ QStringList tst_QDnsLookup::domainNameListAlternatives(const QString &input)
     return alternatives;
 }
 
+void tst_QDnsLookup::lookupLocalhost()
+{
+    QDnsLookup lookup(QDnsLookup::Type::A, u"localhost"_s);
+    lookup.lookup();
+    QTRY_VERIFY_WITH_TIMEOUT(lookup.isFinished(), Timeout);
+    QCOMPARE(lookup.error(), QDnsLookup::NoError);
+
+    QList<QDnsHostAddressRecord> hosts = lookup.hostAddressRecords();
+    QCOMPARE(hosts.size(), 1);
+    QCOMPARE(hosts.at(0).value(), QHostAddress::LocalHost);
+    QVERIFY2(hosts.at(0).name().startsWith(lookup.name()),
+             qPrintable(hosts.at(0).name()));
+}
+
+void tst_QDnsLookup::lookupRoot()
+{
+#ifdef Q_OS_WIN
+    QSKIP("This test fails on Windows as it seems to treat the lookup as a local one.");
+#else
+    QDnsLookup lookup(QDnsLookup::Type::NS, u""_s);
+    lookup.lookup();
+    QTRY_VERIFY_WITH_TIMEOUT(lookup.isFinished(), Timeout);
+    QCOMPARE(lookup.error(), QDnsLookup::NoError);
+
+    const QList<QDnsDomainNameRecord> servers = lookup.nameServerRecords();
+    QVERIFY(!servers.isEmpty());
+    for (const QDnsDomainNameRecord &ns : servers) {
+        QCOMPARE(ns.name(), QString());
+        QVERIFY(ns.value().endsWith(".root-servers.net"));
+    }
+#endif
+}
+
 void tst_QDnsLookup::lookup_data()
 {
     QTest::addColumn<int>("type");
@@ -95,22 +256,18 @@ void tst_QDnsLookup::lookup_data()
     QTest::addColumn<QString>("srv");
     QTest::addColumn<QString>("txt");
 
-    QTest::newRow("a-empty") << int(QDnsLookup::A) << "" << int(QDnsLookup::InvalidRequestError) << "" << "" << "" << "" << ""<< "" << "";
     QTest::newRow("a-notfound") << int(QDnsLookup::A) << "invalid.invalid" << int(QDnsLookup::NotFoundError) << "" << "" << "" << "" << "" << "" << "";
     QTest::newRow("a-single") << int(QDnsLookup::A) << "a-single" << int(QDnsLookup::NoError) << "" << "192.0.2.1" << "" << "" << "" << "" << "";
     QTest::newRow("a-multi") << int(QDnsLookup::A) << "a-multi" << int(QDnsLookup::NoError) << "" << "192.0.2.1;192.0.2.2;192.0.2.3" << "" << "" << "" << "" << "";
-    QTest::newRow("aaaa-empty") << int(QDnsLookup::AAAA) << "" << int(QDnsLookup::InvalidRequestError) << "" << "" << "" << "" << "" << "" << "";
     QTest::newRow("aaaa-notfound") << int(QDnsLookup::AAAA) << "invalid.invalid" << int(QDnsLookup::NotFoundError) << "" << "" << "" << "" << "" << "" << "";
     QTest::newRow("aaaa-single") << int(QDnsLookup::AAAA) << "aaaa-single" << int(QDnsLookup::NoError) << "" << "2001:db8::1" << "" << "" << "" << "" << "";
     QTest::newRow("aaaa-multi") << int(QDnsLookup::AAAA) << "aaaa-multi" << int(QDnsLookup::NoError) << "" << "2001:db8::1;2001:db8::2;2001:db8::3" << "" << "" << "" << "" << "";
 
-    QTest::newRow("any-empty") << int(QDnsLookup::ANY) << "" << int(QDnsLookup::InvalidRequestError) << "" << "" << "" << "" << "" << "" << "";
     QTest::newRow("any-notfound") << int(QDnsLookup::ANY) << "invalid.invalid" << int(QDnsLookup::NotFoundError) << "" << "" << "" << "" << "" << "" << "";
     QTest::newRow("any-a-single") << int(QDnsLookup::ANY) << "a-single" << int(QDnsLookup::NoError) << "" << "192.0.2.1" << "" << "" << "" << ""  << "";
     QTest::newRow("any-a-plus-aaaa") << int(QDnsLookup::ANY) << "a-plus-aaaa" << int(QDnsLookup::NoError) << "" << "198.51.100.1;2001:db8::1:1" << "" << "" << "" << ""  << "";
     QTest::newRow("any-multi") << int(QDnsLookup::ANY) << "multi" << int(QDnsLookup::NoError) << "" << "198.51.100.1;198.51.100.2;198.51.100.3;2001:db8::1:1;2001:db8::1:2" << "" << "" << "" << ""  << "";
 
-    QTest::newRow("mx-empty") << int(QDnsLookup::MX) << "" << int(QDnsLookup::InvalidRequestError) << "" << "" << "" << "" << "" << "" << "";
     QTest::newRow("mx-notfound") << int(QDnsLookup::MX) << "invalid.invalid" << int(QDnsLookup::NotFoundError) << "" << "" << "" << "" << "" << "" << "";
     QTest::newRow("mx-single") << int(QDnsLookup::MX) << "mx-single" << int(QDnsLookup::NoError) << "" << "" << "10 multi" << "" << "" << "" << "";
     QTest::newRow("mx-single-cname") << int(QDnsLookup::MX) << "mx-single-cname" << int(QDnsLookup::NoError) << "" << "" << "10 cname" << "" << "" << "" << "";
@@ -119,12 +276,10 @@ void tst_QDnsLookup::lookup_data()
                                        << "10 multi;10 a-single|"
                                           "10 a-single;10 multi" << "" << "" << "" << "";
 
-    QTest::newRow("ns-empty") << int(QDnsLookup::NS) << "" << int(QDnsLookup::InvalidRequestError) << "" << "" << "" << "" << "" << "" << "";
     QTest::newRow("ns-notfound") << int(QDnsLookup::NS) << "invalid.invalid" << int(QDnsLookup::NotFoundError) << "" << "" << "" << "" << "" << "" << "";
     QTest::newRow("ns-single") << int(QDnsLookup::NS) << "ns-single" << int(QDnsLookup::NoError) << "" << "" << "" << "ns11.cloudns.net." << "" << "" << "";
     QTest::newRow("ns-multi") << int(QDnsLookup::NS) << "ns-multi" << int(QDnsLookup::NoError) << "" << "" << "" << "ns11.cloudns.net.;ns12.cloudns.net." << "" << "" << "";
 
-    QTest::newRow("ptr-empty") << int(QDnsLookup::PTR) << "" << int(QDnsLookup::InvalidRequestError) << "" << "" << "" << "" << "" << "" << "";
     QTest::newRow("ptr-notfound") << int(QDnsLookup::PTR) << "invalid.invalid" << int(QDnsLookup::NotFoundError) << "" << "" << "" << "" << "" << "" << "";
 #if 0
     // temporarily disabled since the new hosting provider can't insert
@@ -132,7 +287,6 @@ void tst_QDnsLookup::lookup_data()
     QTest::newRow("ptr-single") << int(QDnsLookup::PTR) << "ptr-single" << int(QDnsLookup::NoError) << "" << "" << "" << "" << "a-single" << "" << "";
 #endif
 
-    QTest::newRow("srv-empty") << int(QDnsLookup::SRV) << "" << int(QDnsLookup::InvalidRequestError) << "" << "" << "" << "" << "" << "" << "";
     QTest::newRow("srv-notfound") << int(QDnsLookup::SRV) << "invalid.invalid" << int(QDnsLookup::NotFoundError) << "" << "" << "" << "" << "" << "" << "";
     QTest::newRow("srv-single") << int(QDnsLookup::SRV) << "_echo._tcp.srv-single" << int(QDnsLookup::NoError) << "" << "" << "" << "" << "" << "5 0 7 multi" << "";
     QTest::newRow("srv-prio") << int(QDnsLookup::SRV) << "_echo._tcp.srv-prio" << int(QDnsLookup::NoError) << "" << "" << "" << "" << "" << "1 0 7 multi;2 0 7 a-plus-aaaa" << "";
@@ -143,7 +297,6 @@ void tst_QDnsLookup::lookup_data()
                                << "1 50 7 multi;2 50 7 a-single;2 50 7 aaaa-single;3 50 7 a-multi|"
                                   "1 50 7 multi;2 50 7 aaaa-single;2 50 7 a-single;3 50 7 a-multi" << "";
 
-    QTest::newRow("txt-empty") << int(QDnsLookup::TXT) << "" << int(QDnsLookup::InvalidRequestError) << "" << "" << "" << "" << "" << "" << "";
     QTest::newRow("txt-notfound") << int(QDnsLookup::TXT) << "invalid.invalid" << int(QDnsLookup::NotFoundError) << "" << "" << "" << "" << "" << "" << "";
     QTest::newRow("txt-single") << int(QDnsLookup::TXT) << "txt-single" << int(QDnsLookup::NoError) << "" << "" << "" << "" << "" << "" << "Hello";
     QTest::newRow("txt-multi-onerr") << int(QDnsLookup::TXT) << "txt-multi-onerr" << int(QDnsLookup::NoError) << "" << "" << "" << "" << "" << ""
@@ -181,11 +334,6 @@ void tst_QDnsLookup::lookup()
     lookup.lookup();
     QTRY_VERIFY_WITH_TIMEOUT(lookup.isFinished(), Timeout);
 
-#if defined(Q_OS_ANDROID)
-    if (lookup.errorString() == QStringLiteral("Not yet supported on Android"))
-        QEXPECT_FAIL("", "Not yet supported on Android", Abort);
-#endif
-
     auto extraErrorMsg = [&] () {
         QString result;
         QTextStream str(&result);
@@ -209,7 +357,8 @@ void tst_QDnsLookup::lookup()
     };
 
     if (!dnsServersMustWork && (lookup.error() == QDnsLookup::ServerFailureError
-                                || lookup.error() == QDnsLookup::ServerRefusedError)) {
+                                || lookup.error() == QDnsLookup::ServerRefusedError
+                                || lookup.error() == QDnsLookup::TimeoutError)) {
         // It's not a QDnsLookup problem if the server refuses to answer the query.
         // This happens for queries of type ANY through Dnsmasq, for example.
         qWarning("Server refused or was unable to answer query; %s", extraErrorMsg().constData());
@@ -217,7 +366,6 @@ void tst_QDnsLookup::lookup()
     }
 
     QVERIFY2(int(lookup.error()) == error, extraErrorMsg());
-
     if (error == QDnsLookup::NoError)
         QVERIFY(lookup.errorString().isEmpty());
     QCOMPARE(int(lookup.type()), type);
@@ -317,11 +465,6 @@ void tst_QDnsLookup::lookupReuse()
     lookup.lookup();
     QTRY_VERIFY_WITH_TIMEOUT(lookup.isFinished(), Timeout);
 
-#if defined(Q_OS_ANDROID)
-    if (lookup.errorString() == QStringLiteral("Not yet supported on Android"))
-        QEXPECT_FAIL("", "Not yet supported on Android", Abort);
-#endif
-
     QCOMPARE(int(lookup.error()), int(QDnsLookup::NoError));
     QVERIFY(!lookup.hostAddressRecords().isEmpty());
     QCOMPARE(lookup.hostAddressRecords().first().name(), domainName("a-single"));
@@ -358,17 +501,98 @@ void tst_QDnsLookup::lookupAbortRetry()
     lookup.lookup();
     QTRY_VERIFY_WITH_TIMEOUT(lookup.isFinished(), Timeout);
 
-#if defined(Q_OS_ANDROID)
-    if (lookup.errorString() == QStringLiteral("Not yet supported on Android"))
-        QEXPECT_FAIL("", "Not yet supported on Android", Abort);
-#endif
-
     QCOMPARE(int(lookup.error()), int(QDnsLookup::NoError));
     QVERIFY(!lookup.hostAddressRecords().isEmpty());
     QCOMPARE(lookup.hostAddressRecords().first().name(), domainName("aaaa-single"));
     QCOMPARE(lookup.hostAddressRecords().first().value(), QHostAddress("2001:db8::1"));
 }
 
+void tst_QDnsLookup::setNameserverLoopback()
+{
+#ifdef Q_OS_WIN
+    // Windows doesn't like sending DNS requests to ports other than 53, so
+    // let's try it first.
+    constexpr quint16 DesiredPort = 53;
+#else
+    // Trying to bind to port 53 will fail on Unix systems unless this test is
+    // run as root, so we try mDNS's port (to help decoding in a packet capture).
+    constexpr quint16 DesiredPort = 5353;   // mDNS
+#endif
+    // random loopback address so multiple copies of this test can run
+    QHostAddress desiredAddress(0x7f000000 | QRandomGenerator::system()->bounded(0xffffff));
+
+    QUdpSocket server;
+    if (!server.bind(desiredAddress, DesiredPort)) {
+        // port in use, try a random one
+        server.bind(QHostAddress::LocalHost, 0);
+    }
+    QCOMPARE(server.state(), QUdpSocket::BoundState);
+
+    QDnsLookup lookup(QDnsLookup::Type::A, u"somelabel.somedomain"_s);
+    QSignalSpy spy(&lookup, SIGNAL(finished()));
+    lookup.setNameserver(server.localAddress(), server.localPort());
+
+    // QDnsLookup is threaded, so we can answer on the main thread
+    QObject::connect(&server, &QUdpSocket::readyRead,
+                     &QTestEventLoop::instance(), &QTestEventLoop::exitLoop);
+    QObject::connect(&lookup, &QDnsLookup::finished,
+                     &QTestEventLoop::instance(), &QTestEventLoop::exitLoop);
+    lookup.lookup();
+    QTestEventLoop::instance().enterLoop(5);
+    QVERIFY(!QTestEventLoop::instance().timeout());
+    QVERIFY2(spy.isEmpty(), qPrintable(lookup.errorString()));
+
+    QNetworkDatagram dgram = server.receiveDatagram();
+    QByteArray data = dgram.data();
+    QCOMPARE_GT(data.size(), HeaderSize);
+
+    quint8 opcode = (quint8(data.at(2)) >> 3) & 0xF;
+    QCOMPARE(opcode, 0);        // standard query
+
+    // send an NXDOMAIN reply to release the lookup thread
+    QByteArray reply = data;
+    reply[2] = 0x80;    // header->qr = true;
+    reply[3] = 3;       // header->rcode = NXDOMAIN;
+    server.writeDatagram(dgram.makeReply(reply));
+    server.close();
+
+    // now check that the QDnsLookup finished
+    QTestEventLoop::instance().enterLoop(5);
+    QVERIFY(!QTestEventLoop::instance().timeout());
+    QCOMPARE(spy.size(), 1);
+    QCOMPARE(lookup.error(), QDnsLookup::NotFoundError);
+}
+
+void tst_QDnsLookup::setNameserver_data()
+{
+    static QList<QHostAddress> servers = systemNameservers() + globalPublicNameservers();
+    QTest::addColumn<QHostAddress>("server");
+
+    if (servers.isEmpty()) {
+        QSKIP("No reachable DNS servers were found");
+    } else {
+        for (const QHostAddress &h : std::as_const(servers))
+            QTest::addRow("%s", qUtf8Printable(h.toString())) << h;
+    }
+}
+
+void tst_QDnsLookup::setNameserver()
+{
+    QFETCH(QHostAddress, server);
+    QDnsLookup lookup;
+    lookup.setNameserver(server);
+
+    lookup.setType(QDnsLookup::Type::A);
+    lookup.setName(domainName("a-single"));
+    lookup.lookup();
+
+    QTRY_VERIFY_WITH_TIMEOUT(lookup.isFinished(), Timeout);
+    QCOMPARE(int(lookup.error()), int(QDnsLookup::NoError));
+    QVERIFY(!lookup.hostAddressRecords().isEmpty());
+    QCOMPARE(lookup.hostAddressRecords().first().name(), domainName("a-single"));
+    QCOMPARE(lookup.hostAddressRecords().first().value(), QHostAddress("192.0.2.1"));
+}
+
 void tst_QDnsLookup::bindingsAndProperties()
 {
     QDnsLookup lookup;
@@ -401,14 +625,23 @@ void tst_QDnsLookup::bindingsAndProperties()
     QProperty<QHostAddress> nameserverProp;
     lookup.bindableNameserver().setBinding(Qt::makePropertyBinding(nameserverProp));
     const QSignalSpy nameserverChangeSpy(&lookup, &QDnsLookup::nameserverChanged);
+    const QSignalSpy nameserverPortChangeSpy(&lookup, &QDnsLookup::nameserverPortChanged);
 
     nameserverProp = QHostAddress::LocalHost;
     QCOMPARE(nameserverChangeSpy.size(), 1);
+    QCOMPARE(nameserverPortChangeSpy.size(), 0);
     QCOMPARE(lookup.nameserver(), QHostAddress::LocalHost);
 
     nameserverProp.setBinding(lookup.bindableNameserver().makeBinding());
     lookup.setNameserver(QHostAddress::Any);
     QCOMPARE(nameserverProp.value(), QHostAddress::Any);
+    QCOMPARE(nameserverChangeSpy.size(), 2);
+    QCOMPARE(nameserverPortChangeSpy.size(), 0);
+
+    lookup.setNameserver(QHostAddress::LocalHostIPv6, 10053);
+    QCOMPARE(nameserverProp.value(), QHostAddress::LocalHostIPv6);
+    QCOMPARE(nameserverChangeSpy.size(), 3);
+    QCOMPARE(nameserverPortChangeSpy.size(), 1);
 }
 
 void tst_QDnsLookup::automatedBindings()
@@ -434,6 +667,13 @@ void tst_QDnsLookup::automatedBindings()
         qDebug("Failed property test for QDnsLookup::nameserver");
         return;
     }
+
+    QTestPrivate::testReadWritePropertyBasics(lookup, quint16(123), quint16(456),
+                                              "nameserverPort");
+    if (QTest::currentTestFailed()) {
+        qDebug("Failed property test for QDnsLookup::nameserverPort");
+        return;
+    }
 }
 
 QTEST_MAIN(tst_QDnsLookup)
diff --git a/tests/auto/network/kernel/qhostaddress/tst_qhostaddress.cpp b/tests/auto/network/kernel/qhostaddress/tst_qhostaddress.cpp
index f735c389..1135420c 100644
--- a/tests/auto/network/kernel/qhostaddress/tst_qhostaddress.cpp
+++ b/tests/auto/network/kernel/qhostaddress/tst_qhostaddress.cpp
@@ -703,6 +703,7 @@ void tst_QHostAddress::classification()
     bool isUniqueLocalAddress = (result == UniqueLocalAddress);
     bool isMulticast = (result == MulticastAddress);
     bool isBroadcast = (result == BroadcastAddress);
+    bool isPrivateUse = (result == PrivateNetworkAddress || result == UniqueLocalAddress);
 
     QCOMPARE(address.isLoopback(), isLoopback);
     QCOMPARE(address.isGlobal(), isGlobal);
@@ -711,6 +712,7 @@ void tst_QHostAddress::classification()
     QCOMPARE(address.isUniqueLocalUnicast(), isUniqueLocalAddress);
     QCOMPARE(address.isMulticast(), isMulticast);
     QCOMPARE(address.isBroadcast(), isBroadcast);
+    QCOMPARE(address.isPrivateUse(), isPrivateUse);
 }
 
 void tst_QHostAddress::convertv4v6_data()
diff --git a/tests/auto/network/kernel/qhostinfo/tst_qhostinfo.cpp b/tests/auto/network/kernel/qhostinfo/tst_qhostinfo.cpp
index 7d2e5a6b..195cf972 100644
--- a/tests/auto/network/kernel/qhostinfo/tst_qhostinfo.cpp
+++ b/tests/auto/network/kernel/qhostinfo/tst_qhostinfo.cpp
@@ -502,6 +502,7 @@ protected:
     inline void run() override
     {
          QHostInfo info = QHostInfo::fromName("a-single" TEST_DOMAIN);
+         QCOMPARE(info.errorString(), "Unknown error"); // no error
          QCOMPARE(info.error(), QHostInfo::NoError);
          QVERIFY(info.addresses().size() > 0);
          QCOMPARE(info.addresses().at(0).toString(), QString("192.0.2.1"));
diff --git a/tests/auto/network/kernel/qnetworkinterface/CMakeLists.txt b/tests/auto/network/kernel/qnetworkinterface/CMakeLists.txt
index b06ef5c3..e7a1fec5 100644
--- a/tests/auto/network/kernel/qnetworkinterface/CMakeLists.txt
+++ b/tests/auto/network/kernel/qnetworkinterface/CMakeLists.txt
@@ -9,6 +9,6 @@ qt_internal_add_test(tst_qnetworkinterface
     SOURCES
         tst_qnetworkinterface.cpp
     LIBRARIES
-        Qt::Network
+        Qt::NetworkPrivate
     QT_TEST_SERVER_LIST "apache2"
 )
diff --git a/tests/auto/network/kernel/qnetworkinterface/tst_qnetworkinterface.cpp b/tests/auto/network/kernel/qnetworkinterface/tst_qnetworkinterface.cpp
index db06b839..74182dc7 100644
--- a/tests/auto/network/kernel/qnetworkinterface/tst_qnetworkinterface.cpp
+++ b/tests/auto/network/kernel/qnetworkinterface/tst_qnetworkinterface.cpp
@@ -12,6 +12,8 @@
 #include <qudpsocket.h>
 #include "../../../network-settings.h"
 
+#include <private/qtnetwork-config_p.h>
+
 Q_DECLARE_METATYPE(QHostAddress)
 
 class tst_QNetworkInterface : public QObject
@@ -49,14 +51,13 @@ tst_QNetworkInterface::~tst_QNetworkInterface()
 
 bool tst_QNetworkInterface::isIPv6Working()
 {
- // Version without following cannot get IPV6 information
- #if !defined(QT_NO_GETIFADDRS) && !defined(QT_NO_IPV6IFNAME)
-     QUdpSocket socket;
-     socket.connectToHost(QHostAddress::LocalHostIPv6, 1234);
-     return socket.state() == QAbstractSocket::ConnectedState || socket.waitForConnected(100);
- #else
-     return false;
- #endif
+    // QNetworkInterface may be unable to detect IPv6 addresses even if they
+    // are there, due to limitations of the implementation.
+    if (QOperatingSystemVersion::currentType() == QOperatingSystemVersion::Windows ||
+            QT_CONFIG(linux_netlink) || (QT_CONFIG(getifaddrs) && QT_CONFIG(ipv6ifname))) {
+        return QtNetworkSettings::hasIPv6();
+    }
+    return false;
 }
 
 void tst_QNetworkInterface::initTestCase()
diff --git a/tests/auto/network/socket/qlocalsocket/CMakeLists.txt b/tests/auto/network/socket/qlocalsocket/CMakeLists.txt
index efdc23be..9672f698 100644
--- a/tests/auto/network/socket/qlocalsocket/CMakeLists.txt
+++ b/tests/auto/network/socket/qlocalsocket/CMakeLists.txt
@@ -1,7 +1,6 @@
 # Copyright (C) 2022 The Qt Company Ltd.
 # SPDX-License-Identifier: BSD-3-Clause
 
-# add_subdirectory(test) # special case remove
 add_subdirectory(socketprocess)
 qt_internal_add_test(tst_qlocalsocket
     SOURCES
diff --git a/tests/auto/network/socket/qtcpserver/tst_qtcpserver.cpp b/tests/auto/network/socket/qtcpserver/tst_qtcpserver.cpp
index d871d62c..f42d0497 100644
--- a/tests/auto/network/socket/qtcpserver/tst_qtcpserver.cpp
+++ b/tests/auto/network/socket/qtcpserver/tst_qtcpserver.cpp
@@ -459,7 +459,7 @@ public:
 protected:
     void run() override
     {
-        sleep(2);
+        sleep(std::chrono::seconds{2});
 
         QTcpSocket socket;
         socket.connectToHost(host, port);
diff --git a/tests/auto/network/socket/qtcpsocket/tst_qtcpsocket.cpp b/tests/auto/network/socket/qtcpsocket/tst_qtcpsocket.cpp
index 8525813e..c1b89f9e 100644
--- a/tests/auto/network/socket/qtcpsocket/tst_qtcpsocket.cpp
+++ b/tests/auto/network/socket/qtcpsocket/tst_qtcpsocket.cpp
@@ -562,7 +562,7 @@ void tst_QTcpSocket::bind()
 
     std::unique_ptr<QTcpSocket> socket(newSocket());
     quint16 boundPort;
-    qintptr fd;
+    qintptr fd = 0;
 
     if (successExpected) {
         bool randomPort = port == -1;
diff --git a/tests/auto/network/socket/qudpsocket/tst_qudpsocket.cpp b/tests/auto/network/socket/qudpsocket/tst_qudpsocket.cpp
index 43804338..f9e75483 100644
--- a/tests/auto/network/socket/qudpsocket/tst_qudpsocket.cpp
+++ b/tests/auto/network/socket/qudpsocket/tst_qudpsocket.cpp
@@ -121,6 +121,7 @@ private:
     QList<QHostAddress> allAddresses;
     QHostAddress multicastGroup4, multicastGroup6;
     QList<QHostAddress> linklocalMulticastGroups;
+    QNetworkInterface ifaceWithIPv6;
     QUdpSocket *m_asyncSender;
     QUdpSocket *m_asyncReceiver;
 };
@@ -171,26 +172,7 @@ QNetworkInterface tst_QUdpSocket::interfaceForGroup(const QHostAddress &multicas
     if (!scope.isEmpty())
         return QNetworkInterface::interfaceFromName(scope);
 
-    static QNetworkInterface ipv6if = [&]() {
-        // find any link local address in the allAddress list
-        for (const QHostAddress &addr: std::as_const(allAddresses)) {
-            if (addr.isLoopback())
-                continue;
-
-            QString scope = addr.scopeId();
-            if (!scope.isEmpty()) {
-                QNetworkInterface iface = QNetworkInterface::interfaceFromName(scope);
-                qDebug() << "Will bind IPv6 sockets to" << iface;
-                return iface;
-            }
-        }
-
-        qWarning("interfaceForGroup(%s) could not find any link-local IPv6 address! "
-                 "Make sure this test is behind a check of QtNetworkSettings::hasIPv6().",
-                 qUtf8Printable(multicastGroup.toString()));
-        return QNetworkInterface();
-    }();
-    return ipv6if;
+    return ifaceWithIPv6;
 }
 
 bool tst_QUdpSocket::shouldWorkaroundLinuxKernelBug()
@@ -275,9 +257,16 @@ void tst_QUdpSocket::initTestCase()
             continue;
         llbase.setScopeId(scope);
         linklocalMulticastGroups << llbase;
+        if (!ifaceWithIPv6.isValid()) {
+            // Remember the first interface we've found that has IPv6 so we can
+            // bind non-link-local sockets to it (the first is least likely to
+            // be some weird virtual interface).
+            ifaceWithIPv6 = QNetworkInterface::interfaceFromName(scope);
+        }
     }
 
     qDebug() << "Will use multicast groups" << multicastGroup4 << multicastGroup6 << linklocalMulticastGroups;
+    qDebug() << "Will bind IPv6 sockets to" << ifaceWithIPv6;
 
     m_workaroundLinuxKernelBug = shouldWorkaroundLinuxKernelBug();
     if (QTestPrivate::isRunningArmOnX86())
diff --git a/tests/auto/network/ssl/qdtls/tst_qdtls.cpp b/tests/auto/network/ssl/qdtls/tst_qdtls.cpp
index 38bfcd28..728060dc 100644
--- a/tests/auto/network/ssl/qdtls/tst_qdtls.cpp
+++ b/tests/auto/network/ssl/qdtls/tst_qdtls.cpp
@@ -26,6 +26,8 @@
 
 #include <algorithm>
 
+using namespace std::chrono_literals;
+
 QT_BEGIN_NAMESPACE
 
 namespace
@@ -127,8 +129,8 @@ private:
     DtlsPtr clientCrypto;
 
     QTestEventLoop testLoop;
-    const int handshakeTimeoutMS = 5000;
-    const int dataExchangeTimeoutMS = 1000;
+    static constexpr auto HandshakeTimeout = 5s;
+    static constexpr auto DataExchangeTimeout = 1s;
 
     const QByteArray presharedKey = "DEADBEEFDEADBEEF";
     QString certDirPath;
@@ -413,7 +415,7 @@ void tst_QDtls::handshake()
     QDTLS_VERIFY_NO_ERROR(clientCrypto);
     QCOMPARE(clientCrypto->handshakeState(), QDtls::HandshakeInProgress);
 
-    testLoop.enterLoopMSecs(handshakeTimeoutMS);
+    testLoop.enterLoop(HandshakeTimeout);
 
     QVERIFY(!testLoop.timeout());
 
@@ -473,7 +475,7 @@ void tst_QDtls::handshakeWithRetransmission()
     // client will re-transmit in 1s., the first part of 'ServerHello' to be
     // dropped, the client then will re-transmit after another 2 s. Thus it's ~3.
     // We err on safe side and double our (already quite generous) 5s.
-    testLoop.enterLoopMSecs(handshakeTimeoutMS * 2);
+    testLoop.enterLoop(HandshakeTimeout * 2);
 
     QVERIFY(!testLoop.timeout());
     QDTLS_VERIFY_HANDSHAKE_SUCCESS(serverCrypto);
@@ -496,7 +498,7 @@ void tst_QDtls::sessionCipher()
     QVERIFY(clientCrypto->setPeer(serverAddress, serverPort, hostName));
     QVERIFY(clientCrypto->doHandshake(&clientSocket));
 
-    testLoop.enterLoopMSecs(handshakeTimeoutMS);
+    testLoop.enterLoop(HandshakeTimeout);
 
     QVERIFY(!testLoop.timeout());
     QDTLS_VERIFY_HANDSHAKE_SUCCESS(clientCrypto);
@@ -559,7 +561,7 @@ void tst_QDtls::cipherPreferences()
     QVERIFY(clientCrypto->doHandshake(&clientSocket));
     QDTLS_VERIFY_NO_ERROR(clientCrypto);
 
-    testLoop.enterLoopMSecs(handshakeTimeoutMS);
+    testLoop.enterLoop(HandshakeTimeout);
     QVERIFY(!testLoop.timeout());
     QDTLS_VERIFY_HANDSHAKE_SUCCESS(clientCrypto);
     QDTLS_VERIFY_HANDSHAKE_SUCCESS(serverCrypto);
@@ -634,7 +636,7 @@ void tst_QDtls::protocolVersionMatching()
     QVERIFY(clientCrypto->setPeer(serverAddress, serverPort));
     QVERIFY(clientCrypto->doHandshake(&clientSocket));
 
-    testLoop.enterLoopMSecs(handshakeTimeoutMS);
+    testLoop.enterLoop(HandshakeTimeout);
 
     if (works) {
         QDTLS_VERIFY_HANDSHAKE_SUCCESS(serverCrypto);
@@ -669,7 +671,7 @@ void tst_QDtls::verificationErrors()
     // Now we are ready for handshake:
     QVERIFY(clientCrypto->doHandshake(&clientSocket));
 
-    testLoop.enterLoopMSecs(handshakeTimeoutMS);
+    testLoop.enterLoop(HandshakeTimeout);
 
     QVERIFY(!testLoop.timeout());
     QDTLS_VERIFY_NO_ERROR(serverCrypto);
@@ -739,7 +741,7 @@ void tst_QDtls::presetExpectedErrors()
     QVERIFY(clientCrypto->setPeer(serverAddress, serverPort));
     QVERIFY(clientCrypto->doHandshake(&clientSocket));
 
-    testLoop.enterLoopMSecs(handshakeTimeoutMS);
+    testLoop.enterLoop(HandshakeTimeout);
 
     QVERIFY(!testLoop.timeout());
 
@@ -826,7 +828,7 @@ void tst_QDtls::verifyServerCertificate()
 
     QVERIFY(clientCrypto->doHandshake(&clientSocket));
 
-    testLoop.enterLoopMSecs(handshakeTimeoutMS);
+    testLoop.enterLoop(HandshakeTimeout);
     QVERIFY(!testLoop.timeout());
 
     if (serverKey.isNull() && !serverCerts.isEmpty()) {
@@ -956,7 +958,7 @@ void tst_QDtls::verifyClientCertificate()
     QVERIFY(clientCrypto->doHandshake(&clientSocket));
     QDTLS_VERIFY_NO_ERROR(clientCrypto);
 
-    testLoop.enterLoopMSecs(handshakeTimeoutMS);
+    testLoop.enterLoop(HandshakeTimeout);
 
     serverConfig = serverCrypto->dtlsConfiguration();
 
@@ -1003,7 +1005,7 @@ void tst_QDtls::blacklistedCerificate()
     QVERIFY(clientCrypto->setPeer(serverAddress, serverPort, name));
     QVERIFY(clientCrypto->doHandshake(&clientSocket));
 
-    testLoop.enterLoopMSecs(handshakeTimeoutMS);
+    testLoop.enterLoop(HandshakeTimeout);
     QVERIFY(!testLoop.timeout());
     QCOMPARE(clientCrypto->handshakeState(), QDtls::PeerVerificationFailed);
     QCOMPARE(clientCrypto->dtlsError(), QDtlsError::PeerVerificationError);
@@ -1055,7 +1057,7 @@ void tst_QDtls::readWriteEncrypted()
     QCOMPARE(clientCrypto->dtlsError(), QDtlsError::InvalidOperation);
 
     // 1.2 Finish the handshake:
-    testLoop.enterLoopMSecs(handshakeTimeoutMS);
+    testLoop.enterLoop(HandshakeTimeout);
     QVERIFY(!testLoop.timeout());
 
     QDTLS_VERIFY_HANDSHAKE_SUCCESS(clientCrypto);
@@ -1073,7 +1075,7 @@ void tst_QDtls::readWriteEncrypted()
     QVERIFY(clientBytesWritten > 0);
 
     // 5. Exchange client/server messages:
-    testLoop.enterLoopMSecs(dataExchangeTimeoutMS);
+    testLoop.enterLoop(DataExchangeTimeout);
     QVERIFY(!testLoop.timeout());
 
     QCOMPARE(serverExpectedPlainText, serverReceivedPlainText);
@@ -1091,7 +1093,7 @@ void tst_QDtls::readWriteEncrypted()
     QCOMPARE(crypto->handshakeState(), QDtls::HandshakeNotStarted);
     QVERIFY(!crypto->isConnectionEncrypted());
     // 8. Receive this read notification and handle it:
-    testLoop.enterLoopMSecs(dataExchangeTimeoutMS);
+    testLoop.enterLoop(DataExchangeTimeout);
     QVERIFY(!testLoop.timeout());
 
     DtlsPtr &peerCrypto = serverSideShutdown ? clientCrypto : serverCrypto;
@@ -1116,7 +1118,7 @@ void tst_QDtls::datagramFragmentation()
 
     QVERIFY(clientCrypto->doHandshake(&clientSocket));
 
-    testLoop.enterLoopMSecs(handshakeTimeoutMS);
+    testLoop.enterLoop(HandshakeTimeout);
     QVERIFY(!testLoop.timeout());
 
     QDTLS_VERIFY_HANDSHAKE_SUCCESS(clientCrypto);
diff --git a/tests/auto/network/ssl/qdtlscookie/tst_qdtlscookie.cpp b/tests/auto/network/ssl/qdtlscookie/tst_qdtlscookie.cpp
index 55322608..5690a5e0 100644
--- a/tests/auto/network/ssl/qdtlscookie/tst_qdtlscookie.cpp
+++ b/tests/auto/network/ssl/qdtlscookie/tst_qdtlscookie.cpp
@@ -22,6 +22,8 @@
 #include <utility>
 #include <vector>
 
+using namespace std::chrono_literals;
+
 QT_BEGIN_NAMESPACE
 
 #define STOP_ON_FAILURE \
@@ -76,7 +78,7 @@ private:
     quint16 serverPort = 0;
 
     QTestEventLoop testLoop;
-    int handshakeTimeoutMS = 500;
+    static constexpr auto HandshakeTimeout = 500ms;
 
     QDtlsClientVerifier listener;
     using HandshakePtr = QSharedPointer<QDtls>;
@@ -327,7 +329,7 @@ void tst_QDtlsCookie::verifyMultipleClients()
 
     clientsToAdd = clientsToWait = 100;
 
-    testLoop.enterLoopMSecs(handshakeTimeoutMS * clientsToWait);
+    testLoop.enterLoop(HandshakeTimeout * clientsToWait);
     QVERIFY(!testLoop.timeout());
     QVERIFY(clientsToWait == 0);
 }
@@ -351,7 +353,7 @@ void tst_QDtlsCookie::receiveMessage(QUdpSocket *socket, QByteArray *message,
     Q_ASSERT(socket && message);
 
     if (socket->pendingDatagramSize() <= 0)
-        testLoop.enterLoopMSecs(handshakeTimeoutMS);
+        testLoop.enterLoop(HandshakeTimeout);
 
     QVERIFY(!testLoop.timeout());
     QVERIFY(socket->pendingDatagramSize());
diff --git a/tests/auto/network/ssl/qocsp/tst_qocsp.cpp b/tests/auto/network/ssl/qocsp/tst_qocsp.cpp
index cde8d432..2d64f00d 100644
--- a/tests/auto/network/ssl/qocsp/tst_qocsp.cpp
+++ b/tests/auto/network/ssl/qocsp/tst_qocsp.cpp
@@ -28,6 +28,8 @@
 #include <algorithm>
 #include <utility>
 
+using namespace std::chrono_literals;
+
 // NOTE: the word 'subject' in the code below means the subject of a status request,
 // so in general it's our peer's certificate we are asking about.
 
@@ -386,7 +388,7 @@ private:
     void (QSslSocket::*tlsErrorsSignal)(const QList<QSslError> &) = &QSslSocket::sslErrors;
     void (QTestEventLoop::*exitLoopSlot)() = &QTestEventLoop::exitLoop;
 
-    const int handshakeTimeoutMS = 500;
+    static constexpr auto HandshakeTimeout = 500ms;
     QTestEventLoop loop;
 
     std::vector<QSslError::SslError> ocspErrorCodes = {QSslError::OcspNoResponseFound,
@@ -462,7 +464,7 @@ void tst_QOcsp::connectSelfSigned()
         auto roots = clientConfig.caCertificates();
         setupOcspClient(clientSocket, issuerToChain(subjectChain), server.peerVerifyName());
         clientSocket.connectToHostEncrypted(server.hostName(), server.serverPort());
-        loop.enterLoopMSecs(handshakeTimeoutMS);
+        loop.enterLoop(HandshakeTimeout);
 
         QVERIFY(!clientSocket.isEncrypted());
         QCOMPARE_SINGLE_ERROR(clientSocket, expectedError);
@@ -478,7 +480,7 @@ void tst_QOcsp::connectSelfSigned()
         QSslSocket clientSocket;
         setupOcspClient(clientSocket, issuerToChain(subjectChain), server.peerVerifyName());
         clientSocket.connectToHostEncrypted(server.hostName(), server.serverPort());
-        loop.enterLoopMSecs(handshakeTimeoutMS);
+        loop.enterLoop(HandshakeTimeout);
 
         QVERIFY_HANDSHAKE_WITHOUT_ERRORS(clientSocket);
 
@@ -543,7 +545,7 @@ void tst_QOcsp::badStatus()
     QSslSocket clientSocket;
     setupOcspClient(clientSocket, issuerToChain(subjectChain), server.peerVerifyName());
     clientSocket.connectToHostEncrypted(server.hostName(), server.serverPort());
-    loop.enterLoopMSecs(handshakeTimeoutMS);
+    loop.enterLoop(HandshakeTimeout);
 
     QVERIFY(!clientSocket.isEncrypted());
     QCOMPARE_SINGLE_ERROR(clientSocket, expectedError.error());
@@ -574,7 +576,7 @@ void tst_QOcsp::multipleSingleResponses()
     QSslSocket clientSocket;
     setupOcspClient(clientSocket, issuerToChain(responderChain), server.peerVerifyName());
     clientSocket.connectToHostEncrypted(server.hostName(), server.serverPort());
-    loop.enterLoopMSecs(handshakeTimeoutMS);
+    loop.enterLoop(HandshakeTimeout);
 
     QVERIFY(!clientSocket.isEncrypted());
     QCOMPARE_SINGLE_ERROR(clientSocket, expectedError);
@@ -594,7 +596,7 @@ void tst_QOcsp::malformedResponse()
     QSslSocket clientSocket;
     setupOcspClient(clientSocket, issuerToChain(serverChain), server.peerVerifyName());
     clientSocket.connectToHostEncrypted(server.hostName(), server.serverPort());
-    loop.enterLoopMSecs(handshakeTimeoutMS);
+    loop.enterLoop(HandshakeTimeout);
 
     QVERIFY(!clientSocket.isEncrypted());
     QCOMPARE(clientSocket.error(), QAbstractSocket::SslHandshakeFailedError);
@@ -633,7 +635,7 @@ void tst_QOcsp::expiredResponse()
     QSslSocket clientSocket;
     setupOcspClient(clientSocket, issuerToChain(subjectChain), server.peerVerifyName());
     clientSocket.connectToHostEncrypted(server.hostName(), server.serverPort());
-    loop.enterLoopMSecs(handshakeTimeoutMS);
+    loop.enterLoop(HandshakeTimeout);
 
     QVERIFY(!clientSocket.isEncrypted());
     QCOMPARE_SINGLE_ERROR(clientSocket, expectedError);
@@ -664,7 +666,7 @@ void tst_QOcsp::noNextUpdate()
     QSslSocket clientSocket;
     setupOcspClient(clientSocket, issuerToChain(subjectChain), server.peerVerifyName());
     clientSocket.connectToHostEncrypted(server.hostName(), server.serverPort());
-    loop.enterLoopMSecs(handshakeTimeoutMS);
+    loop.enterLoop(HandshakeTimeout);
 
     QVERIFY_HANDSHAKE_WITHOUT_ERRORS(clientSocket);
 }
@@ -710,7 +712,7 @@ void tst_QOcsp::wrongCertificateInResponse()
     QSslSocket clientSocket;
     setupOcspClient(clientSocket, issuerToChain(subjectChain), server.peerVerifyName());
     clientSocket.connectToHostEncrypted(server.hostName(), server.serverPort());
-    loop.enterLoopMSecs(handshakeTimeoutMS);
+    loop.enterLoop(HandshakeTimeout);
 
     QVERIFY(!clientSocket.isEncrypted());
     QVERIFY(containsError(clientSocket.sslHandshakeErrors(), expectedError));
@@ -735,7 +737,7 @@ void tst_QOcsp::untrustedResponder()
     QSslSocket clientSocket;
     setupOcspClient(clientSocket, {}, server.peerVerifyName());
     clientSocket.connectToHostEncrypted(server.hostName(), server.serverPort());
-    loop.enterLoopMSecs(handshakeTimeoutMS);
+    loop.enterLoop(HandshakeTimeout);
 
     QVERIFY(!clientSocket.isEncrypted());
     QVERIFY(containsError(clientSocket.sslHandshakeErrors(), expectedError));
diff --git a/tests/auto/network/ssl/qsslcertificate/tst_qsslcertificate.cpp b/tests/auto/network/ssl/qsslcertificate/tst_qsslcertificate.cpp
index 5f468405..852825b5 100644
--- a/tests/auto/network/ssl/qsslcertificate/tst_qsslcertificate.cpp
+++ b/tests/auto/network/ssl/qsslcertificate/tst_qsslcertificate.cpp
@@ -102,7 +102,31 @@ private slots:
 #endif // QT_CONFIG(ssl)
 private:
     QString testDataDir;
-    bool isNonOpenSslTls = false;
+
+    enum class TLSBackend {
+        OpenSSL,
+        Schannel,
+        SecureTransport,
+        CertOnly,
+        Unknown,
+    };
+    static TLSBackend currentBackend()
+    {
+        static TLSBackend activeBackend = []() {
+            using namespace Qt::StringLiterals;
+            const QString active = QSslSocket::activeBackend();
+            if (active == "openssl"_L1)
+                return TLSBackend::OpenSSL;
+            if (active == "schannel")
+                return TLSBackend::Schannel;
+            if (active == "securetransport")
+                return TLSBackend::SecureTransport;
+            if (active == "cert-only")
+                return TLSBackend::CertOnly;
+            return TLSBackend::Unknown;
+        }();
+        return activeBackend;
+    }
 };
 
 void tst_QSslCertificate::initTestCase()
@@ -113,8 +137,6 @@ void tst_QSslCertificate::initTestCase()
     if (!testDataDir.endsWith(QLatin1String("/")))
         testDataDir += QLatin1String("/");
 
-    isNonOpenSslTls = QSslSocket::activeBackend() != QStringLiteral("openssl");
-
     QDir dir(testDataDir + "certificates");
     const QFileInfoList fileInfoList = dir.entryInfoList(QDir::Files | QDir::Readable);
     QRegularExpression rxCert(QLatin1String("^.+\\.(pem|der)$"));
@@ -451,7 +473,7 @@ void tst_QSslCertificate::subjectInfoToString()
     QVERIFY(testInfo(QSslCertificate::DistinguishedNameQualifier, QString()));
     QVERIFY(testInfo(QSslCertificate::SerialNumber, QString()));
     // TODO: check why generic code does not handle this!
-    if (!isNonOpenSslTls)
+    if (currentBackend() == TLSBackend::OpenSSL)
         QVERIFY(testInfo(QSslCertificate::EmailAddress, QStringLiteral("ababic@trolltech.com")));
 }
 
@@ -463,9 +485,8 @@ void tst_QSslCertificate::subjectIssuerDisplayName_data()
     QTest::addRow("CommonName") << QStringLiteral("more-certificates/cert-cn.pem") << QStringLiteral("YOUR name");
     QTest::addRow("OrganizationName") << QStringLiteral("more-certificates/cert-on.pem") << QStringLiteral("R&D");
     QTest::addRow("OrganizationUnitName") << QStringLiteral("more-certificates/cert-oun.pem") << QStringLiteral("Foundations");
-#ifndef QT_NO_OPENSSL
-    QTest::addRow("NoSubjectName") << QStringLiteral("more-certificates/cert-noname.pem") << QString();
-#endif
+    if (currentBackend() == TLSBackend::OpenSSL)
+        QTest::addRow("NoSubjectName") << QStringLiteral("more-certificates/cert-noname.pem") << QString();
 }
 
 void tst_QSslCertificate::subjectIssuerDisplayName()
@@ -875,7 +896,7 @@ void tst_QSslCertificate::task256066toPem()
 
 void tst_QSslCertificate::nulInCN()
 {
-    if (isNonOpenSslTls)
+    if (currentBackend() != TLSBackend::OpenSSL)
         QSKIP("Generic QSslCertificatePrivate fails this test");
 
     QList<QSslCertificate> certList =
@@ -895,7 +916,7 @@ void tst_QSslCertificate::nulInCN()
 void tst_QSslCertificate::nulInSan()
 {
 
-    if (isNonOpenSslTls)
+    if (currentBackend() != TLSBackend::OpenSSL)
         QSKIP("Generic QSslCertificatePrivate fails this test");
 
     QList<QSslCertificate> certList =
@@ -962,7 +983,7 @@ void tst_QSslCertificate::selfsignedCertificates()
 
 void tst_QSslCertificate::toText()
 {
-    if (isNonOpenSslTls)
+    if (currentBackend() != TLSBackend::OpenSSL)
         QSKIP("QSslCertificate::toText is not implemented on platforms which do not use openssl");
 
     QList<QSslCertificate> certList =
@@ -1012,7 +1033,7 @@ void tst_QSslCertificate::subjectAndIssuerAttributes()
 
     QByteArray shortName("1.3.6.1.4.1.311.60.2.1.3");
 #if !defined(QT_NO_OPENSSL) && defined(SN_jurisdictionCountryName)
-    if (!isNonOpenSslTls)
+    if (currentBackend() == TLSBackend::OpenSSL)
         shortName = SN_jurisdictionCountryName;
 #endif
     attributes = certList[0].subjectInfoAttributes();
@@ -1021,8 +1042,8 @@ void tst_QSslCertificate::subjectAndIssuerAttributes()
 
 void tst_QSslCertificate::verify()
 {
-    if (isNonOpenSslTls)
-        QSKIP("Not implemented in SecureTransport or Schannel");
+    if (currentBackend() != TLSBackend::OpenSSL)
+        QSKIP("Only implemented for OpenSSL");
 
     QList<QSslError> errors;
     QList<QSslCertificate> toVerify;
@@ -1363,9 +1384,8 @@ void tst_QSslCertificate::pkcs12()
         return;
     }
 
-#if !defined(QT_NO_OPENSSL) && OPENSSL_VERSION_MAJOR >= 3
-    QSKIP("leaf.p12 is using RC2, which is disabled by default in OpenSSL v >= 3");
-#endif
+    if (currentBackend() == TLSBackend::OpenSSL && QSslSocket::sslLibraryVersionNumber() >= 0x30000000L)
+        QSKIP("leaf.p12 is using RC2, which is disabled by default in OpenSSL v >= 3");
 
     QFile f(testDataDir + QLatin1String("pkcs12/leaf.p12"));
     bool ok = f.open(QIODevice::ReadOnly);
@@ -1375,8 +1395,8 @@ void tst_QSslCertificate::pkcs12()
     QSslCertificate cert;
     QList<QSslCertificate> caCerts;
 
-    if (isNonOpenSslTls)
-        QEXPECT_FAIL("", "pkcs12 imports are only supported when openssl is used", Abort); // TODO?
+    if (currentBackend() != TLSBackend::OpenSSL)
+        QEXPECT_FAIL("", "pkcs12 imports are not available with the current TLS backend", Abort); // TODO?
 
     ok = QSslCertificate::importPkcs12(&f, &key, &cert, &caCerts);
     QVERIFY(ok);
@@ -1408,7 +1428,8 @@ void tst_QSslCertificate::pkcs12()
     QFile nocert(testDataDir + QLatin1String("pkcs12/leaf-nokey.p12"));
     ok = nocert.open(QIODevice::ReadOnly);
     QVERIFY(ok);
-    QTest::ignoreMessage(QtWarningMsg, "Unable to convert private key");
+    if (currentBackend() == TLSBackend::OpenSSL)
+        QTest::ignoreMessage(QtWarningMsg, "Unable to convert private key");
     ok = QSslCertificate::importPkcs12(&nocert, &key, &cert, &caCerts);
     QVERIFY(!ok);
     nocert.close();
diff --git a/tests/auto/network/ssl/qsslsocket/tst_qsslsocket.cpp b/tests/auto/network/ssl/qsslsocket/tst_qsslsocket.cpp
index cfcff44a..6213d2f7 100644
--- a/tests/auto/network/ssl/qsslsocket/tst_qsslsocket.cpp
+++ b/tests/auto/network/ssl/qsslsocket/tst_qsslsocket.cpp
@@ -43,6 +43,8 @@
 #include "private/qsslsocket_p.h"
 #include "private/qsslconfiguration_p.h"
 
+using namespace std::chrono_literals;
+
 QT_WARNING_PUSH
 QT_WARNING_DISABLE_DEPRECATED
 // make these enum values available without causing deprecation warnings:
@@ -2840,7 +2842,7 @@ void tst_QSslSocket::closeWhileEmittingSocketError()
     // Make sure we have some data buffered so that close will try to flush:
     clientSocket.write(QByteArray(1000000, Qt::Uninitialized));
 
-    QTestEventLoop::instance().enterLoopMSecs(1000);
+    QTestEventLoop::instance().enterLoop(1s);
     QVERIFY(!QTestEventLoop::instance().timeout());
 
     QCOMPARE(socketErrorSpy.size(), 1);
@@ -3100,7 +3102,14 @@ void tst_QSslSocket::blacklistedCertificates()
     QList<QSslError> sslErrors = receiver->sslHandshakeErrors();
     QVERIFY(sslErrors.size() > 0);
     // there are more errors (self signed cert and hostname mismatch), but we only care about the blacklist error
-    QCOMPARE(sslErrors.at(0).error(), QSslError::CertificateBlacklisted);
+    std::optional<QSslError> blacklistedError;
+    for (const QSslError &error : sslErrors) {
+        if (error.error() == QSslError::CertificateBlacklisted) {
+            blacklistedError = error;
+            break;
+        }
+    }
+    QVERIFY2(blacklistedError, "CertificateBlacklisted error not found!");
 }
 
 void tst_QSslSocket::versionAccessors()
@@ -4577,7 +4586,7 @@ void tst_QSslSocket::unsupportedProtocols()
         return;
 
     QFETCH(const QSsl::SslProtocol, unsupportedProtocol);
-    const int timeoutMS = 500;
+    constexpr auto timeout = 500ms;
     // Test a client socket.
     {
         // 0. connectToHostEncrypted: client-side, non-blocking API, error is discovered
@@ -4599,7 +4608,7 @@ void tst_QSslSocket::unsupportedProtocols()
         QCOMPARE(socket.error(), QAbstractSocket::UnknownSocketError);
 
         socket.connectToHost(QHostAddress::LocalHost, server.serverPort());
-        QVERIFY(socket.waitForConnected(timeoutMS));
+        QVERIFY(socket.waitForConnected(int(timeout.count())));
 
         socket.setProtocol(unsupportedProtocol);
         socket.startClientEncryption();
@@ -4624,7 +4633,7 @@ void tst_QSslSocket::unsupportedProtocols()
 
         QTcpSocket client;
         client.connectToHost(QHostAddress::LocalHost, server.serverPort());
-        loop.enterLoopMSecs(timeoutMS);
+        loop.enterLoop(timeout);
         QVERIFY(!loop.timeout());
         QVERIFY(server.socket);
         QCOMPARE(server.socket->error(), QAbstractSocket::SslInvalidUserDataError);
@@ -4731,7 +4740,7 @@ void tst_QSslSocket::alertMissingCertificate()
     connect(&clientSocket, &QAbstractSocket::errorOccurred, earlyQuitter);
     connect(&server, &SslServer::socketError, earlyQuitter);
 
-    runner.enterLoopMSecs(1000);
+    runner.enterLoop(1s);
 
     if (clientSocket.isEncrypted()) {
         // When using TLS 1.3 the client side thinks it is connected very
@@ -4739,7 +4748,7 @@ void tst_QSslSocket::alertMissingCertificate()
         // inevitable disconnect.
         QCOMPARE(clientSocket.sessionProtocol(), QSsl::TlsV1_3);
         connect(&clientSocket, &QSslSocket::disconnected, &runner, &QTestEventLoop::exitLoop);
-        runner.enterLoopMSecs(10000);
+        runner.enterLoop(10s);
     }
 
     QVERIFY(serverSpy.size() > 0);
@@ -4794,7 +4803,7 @@ void tst_QSslSocket::alertInvalidCertificate()
     connect(&clientSocket, &QAbstractSocket::errorOccurred, earlyQuitter);
     connect(&server, &SslServer::socketError, earlyQuitter);
 
-    runner.enterLoopMSecs(1000);
+    runner.enterLoop(1s);
 
     QVERIFY(serverSpy.size() > 0);
     QVERIFY(clientSpy.size() > 0);
@@ -4922,7 +4931,7 @@ void tst_QSslSocket::selfSignedCertificates()
     connect(&clientSocket, &QAbstractSocket::errorOccurred, earlyQuitter);
     connect(&server, &SslServer::socketError, earlyQuitter);
 
-    runner.enterLoopMSecs(1000);
+    runner.enterLoop(1s);
 
     if (clientKnown) {
         QCOMPARE(serverSpy.size(), 0);
@@ -5060,7 +5069,7 @@ void tst_QSslSocket::pskHandshake()
     connect(&clientSocket, &QAbstractSocket::errorOccurred, earlyQuitter);
     connect(&server, &SslServer::socketError, earlyQuitter);
 
-    runner.enterLoopMSecs(1000);
+    runner.enterLoop(1s);
 
     if (pskRight) {
         QCOMPARE(serverSpy.size(), 0);
diff --git a/tests/auto/other/CMakeLists.txt b/tests/auto/other/CMakeLists.txt
index 3e1a96bc..16f96cd5 100644
--- a/tests/auto/other/CMakeLists.txt
+++ b/tests/auto/other/CMakeLists.txt
@@ -35,10 +35,10 @@ if(QT_FEATURE_process AND TARGET Qt::Gui AND NOT ANDROID)
     add_subdirectory(qprocess_and_guieventloop)
 endif()
 if(QT_FEATURE_accessibility_atspi_bridge AND TARGET Qt::Gui AND TARGET Qt::Widgets)
-    #add_subdirectory(qaccessibilitylinux) # special case # This test is broken
+    #add_subdirectory(qaccessibilitylinux) # TODO: This test is broken
 endif()
 if(MACOS AND TARGET Qt::Gui)
-    # add_subdirectory(macnativeevents) # special case it's disabled in qmake too
+    # add_subdirectory(macnativeevents) # TODO: it's disabled in qmake too
 endif()
 if(embedded)
     add_subdirectory(qdirectpainter)
@@ -46,3 +46,7 @@ endif()
 if(QT_FEATURE_xkbcommon AND TARGET Qt::Gui)
     add_subdirectory(xkbkeyboard)
 endif()
+
+if(ANDROID AND QT_BUILD_STANDALONE_TESTS)
+    add_subdirectory(android_deployment_settings)
+endif()
diff --git a/tests/auto/other/android_deployment_settings/CMakeLists.txt b/tests/auto/other/android_deployment_settings/CMakeLists.txt
new file mode 100644
index 00000000..f2ba1353
--- /dev/null
+++ b/tests/auto/other/android_deployment_settings/CMakeLists.txt
@@ -0,0 +1,85 @@
+# Copyright (C) 2023 The Qt Company Ltd.
+# SPDX-License-Identifier: BSD-3-Clause
+
+if(NOT QT_BUILD_STANDALONE_TESTS AND NOT QT_BUILDING_QT)
+    cmake_minimum_required(VERSION 3.16)
+    project(tst_android_deployment_settings LANGUAGES CXX)
+    find_package(Qt6BuildInternals REQUIRED COMPONENTS STANDALONE_TEST)
+endif()
+
+function(tst_generate_android_deployment_setting target)
+    # Qt build always use new property format that supports generator expressions. In this test we
+    # want to test user scenario so disable all Qt specific options to make sure that
+    # qt6_android_generate_deployment_settings behave like in user projects.
+    set(QT_BUILD_STANDALONE_TESTS FALSE)
+    set(QT_BUILDING_QT FALSE)
+    set(QT_INTERNAL_IS_STANDALONE_TEST FALSE)
+
+    qt6_android_generate_deployment_settings(${target})
+endfunction()
+
+qt6_policy(SET QTP0002 NEW)
+
+set(target tst_android_deployment_settings_new)
+qt6_add_executable(${target} MANUAL_FINALIZATION EXCLUDE_FROM_ALL noop.cpp)
+set_target_properties(${target} PROPERTIES
+    my_package_source_dir "path/to/source/dir"
+    my_libs_property "some/path/to/lib2.so;some/path/to/lib3.so"
+    my_plugins_property "some/path/to/plugin2.so;some/path/to/plugin3.so"
+
+    QT_ANDROID_SDK_BUILD_TOOLS_REVISION "23.0.2"
+    QT_ANDROID_MIN_SDK_VERSION "1"
+    QT_ANDROID_TARGET_SDK_VERSION "2"
+    QT_ANDROID_DEPLOYMENT_DEPENDENCIES "dep1.so;dep2.so;dep3.so"
+    QT_ANDROID_DEPLOYMENT_SETTINGS_FILE "attempt_to_rewrite.json"
+    QT_ANDROID_EXTRA_LIBS
+        "some/path/to/lib1.so;$<TARGET_PROPERTY:${target},my_libs_property>;some/path/to/lib4.so"
+    QT_ANDROID_EXTRA_PLUGINS
+        "some/path/to/plugin1.so;$<TARGET_PROPERTY:${target},my_plugins_property>"
+    QT_ANDROID_PACKAGE_SOURCE_DIR "$<TARGET_PROPERTY:${target},my_package_source_dir>"
+    QT_ANDROID_SYSTEM_LIBS_PREFIX "myLibPrefix"
+
+    # Make sure that this property is overwritten by
+    # qt6_android_generate_deployment_settings
+    QT_ANDROID_DEPLOYMENT_SETTINGS_FILE "custom_deployment_settings.json"
+)
+tst_generate_android_deployment_setting(${target})
+
+qt6_policy(SET QTP0002 OLD)
+
+set(target tst_android_deployment_settings_old)
+qt6_add_executable(${target} MANUAL_FINALIZATION EXCLUDE_FROM_ALL noop.cpp)
+set_target_properties(${target} PROPERTIES
+    QT_ANDROID_SDK_BUILD_TOOLS_REVISION "23.0.2"
+    QT_ANDROID_MIN_SDK_VERSION "1"
+    QT_ANDROID_TARGET_SDK_VERSION "2"
+    QT_ANDROID_DEPLOYMENT_DEPENDENCIES "dep1.so;dep2.so;dep3.so"
+    QT_ANDROID_EXTRA_LIBS
+        "some/path/to/lib1.so;some/path\\to/lib2.so;some\\path\\to\\lib3.so;some/path/to/lib4.so"
+    QT_ANDROID_EXTRA_PLUGINS
+        "some\\path\\to\\plugin1.so;some/path\\to/plugin2.so;some/path/to/plugin3.so"
+    QT_ANDROID_PACKAGE_SOURCE_DIR "path\\to/source\\dir"
+    QT_ANDROID_SYSTEM_LIBS_PREFIX "myLibPrefix"
+)
+tst_generate_android_deployment_setting(${target})
+
+get_target_property(new_settings
+    tst_android_deployment_settings_new QT_ANDROID_DEPLOYMENT_SETTINGS_FILE)
+get_target_property(old_settings
+    tst_android_deployment_settings_old QT_ANDROID_DEPLOYMENT_SETTINGS_FILE)
+set_source_files_properties("${new_settings}" PROPERTIES QT_RESOURCE_ALIAS "new_settings.json")
+set_source_files_properties("${old_settings}" PROPERTIES QT_RESOURCE_ALIAS "old_settings.json")
+qt_internal_add_test(tst_android_deployment_settings
+    SOURCES
+        tst_android_deployment_settings.cpp
+    DEFINES
+        DEFAULT_ABI="${CMAKE_ANDROID_ARCH_ABI}"
+)
+qt6_add_resources(tst_android_deployment_settings
+    "deployment_settings_res"
+    PREFIX
+        "/"
+    FILES
+        "${new_settings}"
+        "${old_settings}"
+)
diff --git a/tests/auto/other/android_deployment_settings/noop.cpp b/tests/auto/other/android_deployment_settings/noop.cpp
new file mode 100644
index 00000000..9de6f56e
--- /dev/null
+++ b/tests/auto/other/android_deployment_settings/noop.cpp
@@ -0,0 +1,7 @@
+// Copyright (C) 2023 The Qt Company Ltd.
+// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only WITH Qt-GPL-exception-1.0
+
+int main(int, char *[])
+{
+    return 0;
+}
diff --git a/tests/auto/other/android_deployment_settings/tst_android_deployment_settings.cpp b/tests/auto/other/android_deployment_settings/tst_android_deployment_settings.cpp
new file mode 100644
index 00000000..e6b87b42
--- /dev/null
+++ b/tests/auto/other/android_deployment_settings/tst_android_deployment_settings.cpp
@@ -0,0 +1,112 @@
+// Copyright (C) 2023 The Qt Company Ltd.
+// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only WITH Qt-GPL-exception-1.0
+
+#include <QJsonDocument>
+#include <QJsonObject>
+#include <QFile>
+#include <QTest>
+#include <QLibraryInfo>
+#include <QDir>
+
+class tst_android_deployment_settings : public QObject
+{
+    Q_OBJECT
+
+private slots:
+    void initTestCase_data();
+    void init();
+
+    void DeploymentSettings_data();
+    void DeploymentSettings();
+
+    void QtPaths_data();
+    void QtPaths();
+
+private:
+    static QString makePath(QLibraryInfo::LibraryLocation loc);
+    QJsonDocument jsonDoc;
+};
+
+QString tst_android_deployment_settings::makePath(QLibraryInfo::LibraryLocation loc)
+{
+    const auto prefix = QLibraryInfo::path(QLibraryInfo::PrefixPath);
+    auto path = QLibraryInfo::path(loc);
+    path.remove(0, prefix.size() + 1);
+    if (path.isEmpty()) // Assume that if path is empty it's '.'
+        path = ".";
+    return path;
+}
+
+void tst_android_deployment_settings::initTestCase_data()
+{
+    QTest::addColumn<QString>("file");
+    QTest::newRow("old") << ":/old_settings.json";
+    QTest::newRow("new") << ":/new_settings.json";
+}
+
+void tst_android_deployment_settings::init()
+{
+    QFETCH_GLOBAL(QString, file);
+    QFile settings(file);
+    QVERIFY(settings.open(QIODeviceBase::ReadOnly));
+    jsonDoc = QJsonDocument::fromJson(settings.readAll());
+    QVERIFY(!jsonDoc.isNull());
+}
+
+void tst_android_deployment_settings::DeploymentSettings_data()
+{
+    QTest::addColumn<QString>("key");
+    QTest::addColumn<QString>("value");
+
+    QTest::newRow("sdkBuildToolsRevision") << "sdkBuildToolsRevision"
+                                           << "23.0.2";
+    QTest::newRow("deployment-dependencies") << "deployment-dependencies"
+                                             << "dep1.so,dep2.so,dep3.so";
+    QTest::newRow("android-extra-plugins")
+            << "android-extra-plugins"
+            << "some/path/to/plugin1.so,some/path/to/plugin2.so,some/path/to/plugin3.so";
+    QTest::newRow("android-extra-libs") << "android-extra-libs"
+                                        << "some/path/to/lib1.so,some/path/to/lib2.so,some/path/to/"
+                                           "lib3.so,some/path/to/lib4.so";
+    QTest::newRow("android-system-libs-prefix") << "android-system-libs-prefix"
+                                                << "myLibPrefix";
+    QTest::newRow("android-package-source-directory") << "android-package-source-directory"
+                                                      << "path/to/source/dir";
+    QTest::newRow("android-min-sdk-version") << "android-min-sdk-version"
+                                             << "1";
+    QTest::newRow("android-target-sdk-version") << "android-target-sdk-version"
+                                                << "2";
+}
+
+void tst_android_deployment_settings::DeploymentSettings()
+{
+    QFETCH(QString, key);
+    QFETCH(QString, value);
+    QCOMPARE(jsonDoc[key].toString(), value);
+}
+
+void tst_android_deployment_settings::QtPaths_data()
+{
+    QTest::addColumn<QString>("key");
+    QTest::addColumn<QString>("value");
+
+    QTest::newRow("qtDataDirectory") << "qtDataDirectory" << makePath(QLibraryInfo::DataPath);
+    QTest::newRow("qtLibExecsDirectory")
+            << "qtLibExecsDirectory" << makePath(QLibraryInfo::LibraryExecutablesPath);
+    QTest::newRow("qtLibsDirectory") << "qtLibsDirectory" << makePath(QLibraryInfo::LibrariesPath);
+    QTest::newRow("qtPluginsDirectory")
+            << "qtPluginsDirectory" << makePath(QLibraryInfo::PluginsPath);
+    QTest::newRow("qtQmlDirectory") << "qtQmlDirectory" << makePath(QLibraryInfo::QmlImportsPath);
+}
+
+void tst_android_deployment_settings::QtPaths()
+{
+    QFETCH(QString, key);
+    QFETCH(QString, value);
+    QCOMPARE(QDir::cleanPath(jsonDoc[key].toObject()[DEFAULT_ABI].toString()),
+             QDir::cleanPath(value));
+}
+
+QTEST_MAIN(tst_android_deployment_settings)
+
+#include "tst_android_deployment_settings.moc"
diff --git a/tests/auto/other/qaccessibility/tst_qaccessibility.cpp b/tests/auto/other/qaccessibility/tst_qaccessibility.cpp
index 70d321f0..5d8fff15 100644
--- a/tests/auto/other/qaccessibility/tst_qaccessibility.cpp
+++ b/tests/auto/other/qaccessibility/tst_qaccessibility.cpp
@@ -224,6 +224,7 @@ private slots:
     void accessibleName();
 #if QT_CONFIG(shortcut)
     void labelTest();
+    void relationTest();
     void accelerators();
 #endif
     void bridgeTest();
@@ -1119,7 +1120,10 @@ void tst_QAccessibility::buttonTest()
     interface = QAccessible::queryAccessibleInterface(&toggleButton);
     actionInterface = interface->actionInterface();
     QCOMPARE(interface->role(), QAccessible::CheckBox);
-    QCOMPARE(actionInterface->actionNames(), QStringList() << QAccessibleActionInterface::toggleAction() << QAccessibleActionInterface::setFocusAction());
+    QCOMPARE(actionInterface->actionNames(),
+             QStringList() << QAccessibleActionInterface::toggleAction()
+                           << QAccessibleActionInterface::pressAction()
+                           << QAccessibleActionInterface::setFocusAction());
     QCOMPARE(actionInterface->localizedActionDescription(QAccessibleActionInterface::toggleAction()), QString("Toggles the state"));
     QVERIFY(!toggleButton.isChecked());
     QVERIFY(!interface->state().checked);
@@ -1155,12 +1159,18 @@ void tst_QAccessibility::buttonTest()
     interface = QAccessible::queryAccessibleInterface(&checkBox);
     actionInterface = interface->actionInterface();
     QCOMPARE(interface->role(), QAccessible::CheckBox);
-    QCOMPARE(actionInterface->actionNames(), QStringList() << QAccessibleActionInterface::toggleAction() << QAccessibleActionInterface::setFocusAction());
+    QCOMPARE(actionInterface->actionNames(),
+             QStringList() << QAccessibleActionInterface::toggleAction()
+                           << QAccessibleActionInterface::pressAction()
+                           << QAccessibleActionInterface::setFocusAction());
     QVERIFY(!interface->state().checked);
     actionInterface->doAction(QAccessibleActionInterface::toggleAction());
 
     QTest::qWait(500);
-    QCOMPARE(actionInterface->actionNames(), QStringList() << QAccessibleActionInterface::toggleAction() << QAccessibleActionInterface::setFocusAction());
+    QCOMPARE(actionInterface->actionNames(),
+             QStringList() << QAccessibleActionInterface::toggleAction()
+                           << QAccessibleActionInterface::pressAction()
+                           << QAccessibleActionInterface::setFocusAction());
     QVERIFY(interface->state().checked);
     QVERIFY(checkBox.isChecked());
     QAccessible::State st;
@@ -3741,6 +3751,69 @@ void tst_QAccessibility::comboBoxTest()
     QTestAccessibility::clearEvents();
 }
 
+void tst_QAccessibility::relationTest()
+{
+    auto windowHolder = std::make_unique<QWidget>();
+    auto window = windowHolder.get();
+    QString text = "Hello World";
+    QLabel *label = new QLabel(text, window);
+    setFrameless(label);
+    QSpinBox *spinBox = new QSpinBox(window);
+    label->setBuddy(spinBox);
+    QProgressBar *pb = new QProgressBar(window);
+    pb->setRange(0, 99);
+    connect(spinBox, SIGNAL(valueChanged(int)), pb, SLOT(setValue(int)));
+
+    window->resize(320, 200);
+    window->show();
+
+    QVERIFY(QTest::qWaitForWindowExposed(window));
+#if defined(Q_OS_UNIX)
+    QCoreApplication::processEvents();
+#endif
+    QTest::qWait(100);
+
+    QAccessibleInterface *acc_label = QAccessible::queryAccessibleInterface(label);
+    QVERIFY(acc_label);
+    QAccessibleInterface *acc_spinBox = QAccessible::queryAccessibleInterface(spinBox);
+    QVERIFY(acc_spinBox);
+    QAccessibleInterface *acc_pb = QAccessible::queryAccessibleInterface(pb);
+    QVERIFY(acc_pb);
+
+    typedef QPair<QAccessibleInterface*, QAccessible::Relation> RelationPair;
+    {
+        const QList<RelationPair> rels = acc_label->relations(QAccessible::Labelled);
+        QCOMPARE(rels.size(), 1);
+        const RelationPair relPair = rels.first();
+
+        // spinBox is Labelled by acc_label
+        QCOMPARE(relPair.first->object(), spinBox);
+        QCOMPARE(relPair.second, QAccessible::Labelled);
+    }
+
+    {
+        // Test multiple relations (spinBox have two)
+        const QList<RelationPair> rels = acc_spinBox->relations();
+        QCOMPARE(rels.size(), 2);
+        int visitCount = 0;
+        for (const auto &relPair : rels) {
+            if (relPair.second & QAccessible::Label) {
+                // label is the Label of spinBox
+                QCOMPARE(relPair.first->object(), label);
+                ++visitCount;
+            } else if (relPair.second & QAccessible::Controlled) {
+                // progressbar is Controlled by the spinBox
+                QCOMPARE(relPair.first->object(), pb);
+                ++visitCount;
+            }
+        }
+        QCOMPARE(visitCount, rels.size());
+    }
+
+    windowHolder.reset();
+    QTestAccessibility::clearEvents();
+}
+
 #if QT_CONFIG(shortcut)
 
 void tst_QAccessibility::labelTest()
@@ -3763,6 +3836,8 @@ void tst_QAccessibility::labelTest()
 
     QAccessibleInterface *acc_label = QAccessible::queryAccessibleInterface(label);
     QVERIFY(acc_label);
+    QAccessibleInterface *acc_lineEdit = QAccessible::queryAccessibleInterface(buddy);
+    QVERIFY(acc_lineEdit);
 
     QCOMPARE(acc_label->text(QAccessible::Name), text);
     QCOMPARE(acc_label->state().editable, false);
@@ -3772,13 +3847,23 @@ void tst_QAccessibility::labelTest()
     QCOMPARE(acc_label->state().focusable, false);
     QCOMPARE(acc_label->state().readOnly, true);
 
-    QList<QPair<QAccessibleInterface *, QAccessible::Relation>> rels = acc_label->relations();
-    QCOMPARE(rels.size(), 1);
-    QAccessibleInterface *iface = rels.first().first;
-    QAccessible::Relation rel = rels.first().second;
 
-    QCOMPARE(rel, QAccessible::Labelled);
-    QCOMPARE(iface->role(), QAccessible::EditableText);
+    typedef QPair<QAccessibleInterface*, QAccessible::Relation> RelationPair;
+    {
+        const QList<RelationPair> rels = acc_label->relations(QAccessible::Labelled);
+        QCOMPARE(rels.size(), 1);
+        const RelationPair relPair = rels.first();
+        QCOMPARE(relPair.first->object(), buddy);
+        QCOMPARE(relPair.second, QAccessible::Labelled);
+    }
+
+    {
+        const QList<RelationPair> rels = acc_lineEdit->relations(QAccessible::Label);
+        QCOMPARE(rels.size(), 1);
+        const RelationPair relPair = rels.first();
+        QCOMPARE(relPair.first->object(), label);
+        QCOMPARE(relPair.second, QAccessible::Label);
+    }
 
     windowHolder.reset();
     QTestAccessibility::clearEvents();
diff --git a/tests/auto/other/qprocess_and_guieventloop/CMakeLists.txt b/tests/auto/other/qprocess_and_guieventloop/CMakeLists.txt
index dfaaa9ed..aa899958 100644
--- a/tests/auto/other/qprocess_and_guieventloop/CMakeLists.txt
+++ b/tests/auto/other/qprocess_and_guieventloop/CMakeLists.txt
@@ -12,3 +12,4 @@ qt_internal_add_test(tst_qprocess_and_guieventloop
         Qt::Gui
 )
 add_subdirectory(write-read-write)
+add_dependencies(tst_qprocess_and_guieventloop write-read-write)
diff --git a/tests/auto/shared/platforminputcontext.h b/tests/auto/shared/platforminputcontext.h
index 1c8890d2..95777b96 100644
--- a/tests/auto/shared/platforminputcontext.h
+++ b/tests/auto/shared/platforminputcontext.h
@@ -17,7 +17,6 @@ public:
         m_lastQueries(Qt::ImhNone),
         m_action(QInputMethod::Click),
         m_cursorPosition(0),
-        m_lastEventType(QEvent::None),
         m_setFocusObjectCallCount(0)
     {}
 
@@ -51,10 +50,6 @@ public:
         m_action = action;
         m_cursorPosition = cursorPosition;
     }
-    virtual bool filterEvent(const QEvent *event) override
-    {
-        m_lastEventType = event->type(); return false;
-    }
     virtual void showInputPanel() override
     {
         m_visible = true;
@@ -94,7 +89,6 @@ public:
     Qt::InputMethodQueries m_lastQueries;
     QInputMethod::Action m_action;
     int m_cursorPosition;
-    int m_lastEventType;
     QRectF m_keyboardRect;
     int m_setFocusObjectCallCount;
 };
diff --git a/tests/auto/sql/kernel/CMakeLists.txt b/tests/auto/sql/kernel/CMakeLists.txt
index 7af31a24..0a2b5dfd 100644
--- a/tests/auto/sql/kernel/CMakeLists.txt
+++ b/tests/auto/sql/kernel/CMakeLists.txt
@@ -5,6 +5,7 @@ add_subdirectory(qsqlfield)
 add_subdirectory(qsqldatabase)
 add_subdirectory(qsqlerror)
 add_subdirectory(qsqldriver)
+add_subdirectory(qsqlindex)
 add_subdirectory(qsqlquery)
 add_subdirectory(qsqlrecord)
 add_subdirectory(qsqlthread)
diff --git a/tests/auto/sql/kernel/qsql/tst_qsql.cpp b/tests/auto/sql/kernel/qsql/tst_qsql.cpp
index 7fe25c12..4ccfff86 100644
--- a/tests/auto/sql/kernel/qsql/tst_qsql.cpp
+++ b/tests/auto/sql/kernel/qsql/tst_qsql.cpp
@@ -19,11 +19,6 @@ class tst_QSql : public QObject
 {
     Q_OBJECT
 
-public:
-    tst_QSql();
-    virtual ~tst_QSql();
-
-
 public slots:
     void initTestCase();
     void cleanupTestCase();
@@ -41,15 +36,6 @@ private slots:
 };
 
 /****************** General Qt SQL Module tests *****************/
-
-tst_QSql::tst_QSql()
-{
-}
-
-tst_QSql::~tst_QSql()
-{
-}
-
 void tst_QSql::initTestCase()
 {
 }
@@ -80,7 +66,7 @@ void tst_QSql::basicDriverTest()
     tst_Databases dbs;
     QVERIFY(dbs.open());
 
-    foreach (const QString& dbName, dbs.dbNames) {
+    for (const QString &dbName : std::as_const(dbs.dbNames)) {
         QSqlDatabase db = QSqlDatabase::database(dbName);
         QVERIFY_SQL(db, isValid());
 
@@ -154,7 +140,7 @@ void tst_QSql::concurrentAccess()
     tst_Databases dbs;
 
     QVERIFY(dbs.open());
-    foreach (const QString& dbName, dbs.dbNames) {
+    for (const QString &dbName : std::as_const(dbs.dbNames)) {
         QSqlDatabase db = QSqlDatabase::database(dbName);
         QVERIFY(db.isValid());
         if (tst_Databases::isMSAccess(db))
@@ -186,7 +172,7 @@ void tst_QSql::openErrorRecovery()
     QVERIFY(dbs.addDbs());
     if (dbs.dbNames.isEmpty())
         QSKIP("No database drivers installed");
-    foreach (const QString& dbName, dbs.dbNames) {
+    for (const QString &dbName : std::as_const(dbs.dbNames)) {
         QSqlDatabase db = QSqlDatabase::database(dbName, false);
         CHECK_DATABASE(db);
 
diff --git a/tests/auto/sql/kernel/qsqldatabase/tst_databases.h b/tests/auto/sql/kernel/qsqldatabase/tst_databases.h
index 93906934..0debe5d5 100644
--- a/tests/auto/sql/kernel/qsqldatabase/tst_databases.h
+++ b/tests/auto/sql/kernel/qsqldatabase/tst_databases.h
@@ -9,6 +9,7 @@
 #include <QSqlDriver>
 #include <QSqlError>
 #include <QSqlQuery>
+#include <QSqlRecord>
 #include <QRegularExpression>
 #include <QRegularExpressionMatch>
 #include <QDir>
@@ -19,9 +20,13 @@
 #include <QJsonArray>
 #include <QJsonObject>
 #include <QJsonDocument>
+#include <QSysInfo>
+#include <QVersionNumber>
 #include <QtSql/private/qsqldriver_p.h>
 #include <QTest>
 
+using namespace Qt::StringLiterals;
+
 #define CHECK_DATABASE( db ) \
     if ( !db.isValid() ) { qFatal( "db is Invalid" ); }
 
@@ -31,88 +36,26 @@
 #define DBMS_SPECIFIC(db, driver) \
     if (!db.driverName().startsWith(driver)) { QSKIP(driver " specific test"); }
 
-// ### use QSystem::hostName if it is integrated in qtest/main
-static QString qGetHostName()
-{
-    static QString hostname;
-
-    if (hostname.isEmpty()) {
-        hostname = QSysInfo::machineHostName();
-        hostname.replace(QLatin1Char( '.' ), QLatin1Char( '_' ));
-        hostname.replace(QLatin1Char( '-' ), QLatin1Char( '_' ));
-    }
-
-    return hostname;
-}
-
-inline QString fixupTableName(const QString &tableName, QSqlDatabase db)
-{
-    QString tbName = tableName;
-    // On Oracle we are limited to 30 character tablenames
-    QSqlDriverPrivate *d = static_cast<QSqlDriverPrivate *>(QObjectPrivate::get(db.driver()));
-    if (d && d->dbmsType == QSqlDriver::Oracle)
-        tbName.truncate(30);
-    // On Interbase we are limited to 31 character tablenames
-    if (d && d->dbmsType == QSqlDriver::Interbase)
-        tbName.truncate(31);
-    return tbName;
-}
-
 // to prevent nameclashes on our database server, each machine
 // will use its own set of table names. Call this function to get
 // "tablename_hostname"
 inline static QString qTableName(const QString &prefix, const char *sourceFileName,
                                  QSqlDatabase db, bool escape = true)
 {
-    const auto tableStr = fixupTableName(QString(QLatin1String("dbtst") + db.driverName() + "_" +
-                                                 prefix + QString::number(qHash(QLatin1String(sourceFileName) +
-                                                 "_" + qGetHostName().replace("-", "_")), 16)), db);
+    const auto hash = qHash(QLatin1String(sourceFileName) + '_' +
+                            QSysInfo::machineHostName().replace('-', '_'));
+    auto tableStr = QLatin1String("dbtst") + db.driverName() + '_' + prefix +
+                    QString::number(hash, 16);
+    // Oracle & Interbase/Firebird have a limit on the tablename length
+    QSqlDriver *drv = db.driver();
+    if (drv)
+        tableStr.truncate(drv->maximumIdentifierLength(QSqlDriver::TableName));
     return escape ? db.driver()->escapeIdentifier(tableStr, QSqlDriver::TableName) : tableStr;
 }
 
-inline static QString qTableName(const QString& prefix, QSqlDatabase db)
-{
-    QString tableStr;
-    if (db.driverName().toLower().contains("ODBC"))
-        tableStr += QLatin1String("_odbc");
-    return fixupTableName(QString(db.driver()->escapeIdentifier(prefix + tableStr + QLatin1Char('_') +
-                          qGetHostName(), QSqlDriver::TableName)),db);
-}
-
-inline static bool testWhiteSpaceNames( const QString &name )
-{
-/*    return name.startsWith( "QPSQL" )
-           || name.startsWith( "QODBC" )
-           || name.startsWith( "QSQLITE" )
-           || name.startsWith( "QMYSQL" );*/
-    return name != QLatin1String("QSQLITE2");
-}
-
-inline static QString toHex( const QString& binary )
-{
-    QString str;
-    static char const hexchars[] = "0123456789ABCDEF";
-
-    for ( int i = 0; i < binary.size(); i++ ) {
-        ushort code = binary.at(i).unicode();
-        str += (QChar)(hexchars[ (code >> 12) & 0x0F ]);
-        str += (QChar)(hexchars[ (code >> 8) & 0x0F ]);
-        str += (QChar)(hexchars[ (code >> 4) & 0x0F ]);
-        str += (QChar)(hexchars[ code & 0x0F ]);
-    }
-
-    return str;
-}
-
-
 class tst_Databases
 {
-
 public:
-    tst_Databases(): counter( 0 )
-    {
-    }
-
     ~tst_Databases()
     {
         close();
@@ -120,67 +63,60 @@ public:
 
     // returns a testtable consisting of the names of all database connections if
     // driverPrefix is empty, otherwise only those that start with driverPrefix.
-    int fillTestTable( const QString& driverPrefix = QString() ) const
+    int fillTestTable(const QString &driverPrefix = QString()) const
     {
-        QTest::addColumn<QString>( "dbName" );
+        QTest::addColumn<QString>("dbName");
         int count = 0;
 
-        for ( int i = 0; i < dbNames.size(); ++i ) {
-            QSqlDatabase db = QSqlDatabase::database( dbNames.at( i ) );
-
-            if ( !db.isValid() )
+        for (const auto &dbName : std::as_const(dbNames)) {
+            QSqlDatabase db = QSqlDatabase::database(dbName);
+            if (!db.isValid())
                 continue;
-
-            if ( driverPrefix.isEmpty() || db.driverName().startsWith( driverPrefix ) ) {
-                QTest::newRow( dbNames.at( i ).toLatin1() ) << dbNames.at( i );
+            if (driverPrefix.isEmpty() || db.driverName().startsWith(driverPrefix)) {
+                QTest::newRow(dbName.toLatin1()) << dbName;
                 ++count;
             }
         }
-
         return count;
     }
 
-    int fillTestTableWithStrategies( const QString& driverPrefix = QString() ) const
+    int fillTestTableWithStrategies(const QString &driverPrefix = QString()) const
     {
-        QTest::addColumn<QString>( "dbName" );
-        QTest::addColumn<int>("submitpolicy_i");
+        QTest::addColumn<QString>("dbName");
+        QTest::addColumn<QSqlTableModel::EditStrategy>("submitpolicy");
         int count = 0;
 
-        for ( int i = 0; i < dbNames.size(); ++i ) {
-            QSqlDatabase db = QSqlDatabase::database( dbNames.at( i ) );
-
-            if ( !db.isValid() )
+        for (const auto &dbName : std::as_const(dbNames)) {
+            QSqlDatabase db = QSqlDatabase::database(dbName);
+            if (!db.isValid())
                 continue;
 
             if ( driverPrefix.isEmpty() || db.driverName().startsWith( driverPrefix ) ) {
-                QTest::newRow( QString("%1 [field]").arg(dbNames.at( i )).toLatin1() ) << dbNames.at( i ) << (int)QSqlTableModel::OnFieldChange;
-                QTest::newRow( QString("%1 [row]").arg(dbNames.at( i )).toLatin1() ) << dbNames.at( i ) << (int)QSqlTableModel::OnRowChange;
-                QTest::newRow( QString("%1 [manual]").arg(dbNames.at( i )).toLatin1() ) << dbNames.at( i ) << (int)QSqlTableModel::OnManualSubmit;
+                QTest::newRow(QString("%1 [field]").arg(dbName).toLatin1() ) << dbName << QSqlTableModel::OnFieldChange;
+                QTest::newRow(QString("%1 [row]").arg(dbName).toLatin1() ) << dbName << QSqlTableModel::OnRowChange;
+                QTest::newRow(QString("%1 [manual]").arg(dbName).toLatin1() ) << dbName << QSqlTableModel::OnManualSubmit;
                 ++count;
             }
         }
-
         return count;
     }
 
-    void addDb( const QString& driver, const QString& dbName,
-                const QString& user = QString(), const QString& passwd = QString(),
-                const QString& host = QString(), int port = -1, const QString params = QString() )
+    void addDb(const QString &driver, const QString &dbName,
+               const QString &user = QString(), const QString &passwd = QString(),
+               const QString &host = QString(), int port = -1, const QString &params = QString())
     {
-        QSqlDatabase db;
-
-        if ( !QSqlDatabase::drivers().contains( driver ) ) {
+        if (!QSqlDatabase::drivers().contains(driver)) {
             qWarning() <<  "Driver" << driver << "is not installed";
             return;
         }
 
         // construct a stupid unique name
-        QString cName = QString::number( counter++ ) + QLatin1Char('_') + driver + QLatin1Char('@');
+        QString cName = QString::number(counter++) + QLatin1Char('_') + driver + QLatin1Char('@');
 
         cName += host.isEmpty() ? dbName : host;
 
-        if ( port > 0 )
-            cName += QLatin1Char(':') + QString::number( port );
+        if (port > 0)
+            cName += QLatin1Char(':') + QString::number(port);
 
         if (driver == "QSQLITE") {
             // Since the database for sqlite is generated at runtime it's always
@@ -190,21 +126,19 @@ public:
             qInfo("SQLite will use the database located at %ls", qUtf16Printable(dbName));
         }
 
-        db = QSqlDatabase::addDatabase( driver, cName );
-
-        if ( !db.isValid() ) {
+        auto db = QSqlDatabase::addDatabase(driver, cName);
+        if (!db.isValid()) {
             qWarning( "Could not create database object" );
             return;
         }
 
-        db.setDatabaseName( dbName );
-
-        db.setUserName( user );
-        db.setPassword( passwd );
-        db.setHostName( host );
-        db.setPort( port );
-        db.setConnectOptions( params );
-        dbNames.append( cName );
+        db.setDatabaseName(dbName);
+        db.setUserName(user);
+        db.setPassword(passwd);
+        db.setHostName(host);
+        db.setPort(port);
+        db.setConnectOptions(params);
+        dbNames.append(cName);
     }
 
     bool addDbs()
@@ -239,10 +173,9 @@ public:
                 qWarning() << "No entries in " + f.fileName();
             } else {
                 const QJsonArray entriesA = entriesV.toArray();
-                QJsonArray::const_iterator it = entriesA.constBegin();
-                while (it != entriesA.constEnd()) {
-                    if ((*it).isObject()) {
-                        const QJsonObject object = (*it).toObject();
+                for (const auto &elem : entriesA) {
+                    if (elem.isObject()) {
+                        const QJsonObject object = elem.toObject();
                         addDb(object.value(QStringLiteral("driver")).toString(),
                               object.value(QStringLiteral("name")).toString(),
                               object.value(QStringLiteral("username")).toString(),
@@ -252,7 +185,6 @@ public:
                               object.value(QStringLiteral("parameters")).toString());
                         added = true;
                     }
-                    ++it;
                 }
             }
         }
@@ -270,17 +202,18 @@ public:
         if (!addDbs())
             return false;
 
-        QStringList::Iterator it = dbNames.begin();
+        auto it = dbNames.begin();
+        while (it != dbNames.end()) {
+            const auto &dbName = *it;
+            QSqlDatabase db = QSqlDatabase::database(dbName, false );
+            qDebug() << "Opening:" << dbName;
 
-        while ( it != dbNames.end() ) {
-            QSqlDatabase db = QSqlDatabase::database(( *it ), false );
-            qDebug() << "Opening:" << (*it);
-
-            if ( db.isValid() && !db.isOpen() ) {
-                if ( !db.open() ) {
-                    qWarning( "tst_Databases: Unable to open %s on %s:\n%s", qPrintable( db.driverName() ), qPrintable( *it ), qPrintable( db.lastError().databaseText() ) );
+            if (db.isValid() && !db.isOpen()) {
+                if (!db.open()) {
+                    qWarning("tst_Databases: Unable to open %s on %s:\n%s", qPrintable(db.driverName()),
+                             qPrintable(dbName), qPrintable(db.lastError().databaseText()));
                     // well... opening failed, so we just ignore the server, maybe it is not running
-                    it = dbNames.erase( it );
+                    it = dbNames.erase(it);
                 } else {
                     ++it;
                 }
@@ -291,57 +224,51 @@ public:
 
     void close()
     {
-        for ( QStringList::Iterator it = dbNames.begin(); it != dbNames.end(); ++it ) {
+        for (const auto &dbName : std::as_const(dbNames)) {
             {
-                QSqlDatabase db = QSqlDatabase::database(( *it ), false );
-
-                if ( db.isValid() && db.isOpen() )
+                QSqlDatabase db = QSqlDatabase::database(dbName, false);
+                if (db.isValid() && db.isOpen())
                     db.close();
             }
-
-            QSqlDatabase::removeDatabase(( *it ) );
+            QSqlDatabase::removeDatabase(dbName);
         }
-
         dbNames.clear();
     }
 
     // for debugging only: outputs the connection as string
-    static QString dbToString( const QSqlDatabase db )
+    static QString dbToString(const QSqlDatabase &db)
     {
         QString res = db.driverName() + QLatin1Char('@');
 
-        if ( db.driverName().startsWith( "QODBC" ) || db.driverName().startsWith( "QOCI" ) ) {
+        if (db.driverName().startsWith("QODBC") || db.driverName().startsWith("QOCI"))
             res += db.databaseName();
-        } else {
+        else
             res += db.hostName();
-        }
 
-        if ( db.port() > 0 ) {
-            res += QLatin1Char(':') + QString::number( db.port() );
-        }
+        if (db.port() > 0)
+            res += QLatin1Char(':') + QString::number(db.port());
 
         return res;
     }
 
     // drop a table only if it exists to prevent warnings
-    static void safeDropTables( QSqlDatabase db, const QStringList& tableNames )
+    static void safeDropTables(const QSqlDatabase &db, const QStringList &tableNames)
     {
-        bool wasDropped;
-        QSqlQuery q( db );
-        QStringList dbtables=db.tables();
+        QSqlQuery q(db);
+        QStringList dbtables = db.tables();
         QSqlDriver::DbmsType dbType = getDatabaseType(db);
-        foreach(const QString &tableName, tableNames)
+        for (const QString &tableName : tableNames)
         {
-            wasDropped = true;
-            QString table=tableName;
-            if ( db.driver()->isIdentifierEscaped(table, QSqlDriver::TableName))
+            bool wasDropped = true;
+            QString table = tableName;
+            if (db.driver()->isIdentifierEscaped(table, QSqlDriver::TableName))
                 table = db.driver()->stripDelimiters(table, QSqlDriver::TableName);
 
-            if ( dbtables.contains( table, Qt::CaseInsensitive ) ) {
-                foreach(const QString &table2, dbtables.filter(table, Qt::CaseInsensitive)) {
-                    if(table2.compare(table.section('.', -1, -1), Qt::CaseInsensitive) == 0) {
-                        table=db.driver()->escapeIdentifier(table2, QSqlDriver::TableName);
-                        if (dbType == QSqlDriver::PostgreSQL)
+            if (dbtables.contains(table, Qt::CaseInsensitive)) {
+                for (const QString &table2 : dbtables.filter(table, Qt::CaseInsensitive)) {
+                    if (table2.compare(table.section('.', -1, -1), Qt::CaseInsensitive) == 0) {
+                        table = db.driver()->escapeIdentifier(table2, QSqlDriver::TableName);
+                        if (dbType == QSqlDriver::PostgreSQL || dbType == QSqlDriver::MimerSQL)
                             wasDropped = q.exec( "drop table " + table + " cascade");
                         else
                             wasDropped = q.exec( "drop table " + table);
@@ -349,7 +276,7 @@ public:
                     }
                 }
             }
-            if ( !wasDropped ) {
+            if (!wasDropped) {
                 qWarning() << dbToString(db) << "unable to drop table" << tableName << ':' << q.lastError();
 //              qWarning() << "last query:" << q.lastQuery();
 //              qWarning() << "dbtables:" << dbtables;
@@ -358,38 +285,31 @@ public:
         }
     }
 
-    static void safeDropTable( QSqlDatabase db, const QString& tableName )
+    static void safeDropViews(const QSqlDatabase &db, const QStringList &viewNames)
     {
-        safeDropTables(db, QStringList() << tableName);
-    }
+        if (isMSAccess(db)) // Access is sooo stupid.
+            safeDropTables(db, viewNames);
 
-    static void safeDropViews( QSqlDatabase db, const QStringList &viewNames )
-    {
-        if ( isMSAccess( db ) ) // Access is sooo stupid.
-            safeDropTables( db, viewNames );
-
-        bool wasDropped;
-        QSqlQuery q( db );
-        QStringList dbtables=db.tables(QSql::Views);
-
-        foreach(QString viewName, viewNames)
+        QSqlQuery q(db);
+        QStringList dbtables = db.tables(QSql::Views);
+        for (const QString &viewName : viewNames)
         {
-            wasDropped = true;
-            QString view=viewName;
-            if ( db.driver()->isIdentifierEscaped(view, QSqlDriver::TableName))
+            bool wasDropped = true;
+            QString view = viewName;
+            if (db.driver()->isIdentifierEscaped(view, QSqlDriver::TableName))
                 view = db.driver()->stripDelimiters(view, QSqlDriver::TableName);
 
-            if ( dbtables.contains( view, Qt::CaseInsensitive ) ) {
-                foreach(const QString &view2, dbtables.filter(view, Qt::CaseInsensitive)) {
-                    if(view2.compare(view.section('.', -1, -1), Qt::CaseInsensitive) == 0) {
-                        view=db.driver()->escapeIdentifier(view2, QSqlDriver::TableName);
-                        wasDropped = q.exec( "drop view " + view);
+            if (dbtables.contains(view, Qt::CaseInsensitive))  {
+                for (const QString &view2 : dbtables.filter(view, Qt::CaseInsensitive)) {
+                    if (view2.compare(view.section('.', -1, -1), Qt::CaseInsensitive) == 0) {
+                        view = db.driver()->escapeIdentifier(view2, QSqlDriver::TableName);
+                        wasDropped = q.exec("drop view " + view);
                         dbtables.removeAll(view);
                     }
                 }
             }
 
-            if ( !wasDropped )
+            if (!wasDropped)
                 qWarning() << dbToString(db) << "unable to drop view" << viewName << ':' << q.lastError();
 //                  << "\nlast query:" << q.lastQuery()
 //                  << "\ndbtables:" << dbtables
@@ -397,14 +317,9 @@ public:
         }
     }
 
-    static void safeDropView( QSqlDatabase db, const QString& tableName )
-    {
-        safeDropViews(db, QStringList() << tableName);
-    }
-
     // returns the type name of the blob datatype for the database db.
     // blobSize is only used if the db doesn't have a generic blob type
-    static QString blobTypeName( QSqlDatabase db, int blobSize = 10000 )
+    static QString blobTypeName(const QSqlDatabase &db, int blobSize = 10000)
     {
         const QSqlDriver::DbmsType dbType = getDatabaseType(db);
         if (dbType == QSqlDriver::MySqlServer)
@@ -433,19 +348,19 @@ public:
         return "blob";
     }
 
-    static QString dateTimeTypeName(QSqlDatabase db)
+    static QString dateTimeTypeName(const QSqlDatabase &db)
     {
         const QSqlDriver::DbmsType dbType = tst_Databases::getDatabaseType(db);
         if (dbType == QSqlDriver::PostgreSQL)
             return QLatin1String("timestamptz");
         if (dbType == QSqlDriver::Oracle && getOraVersion(db) >= 9)
             return QLatin1String("timestamp(0)");
-        if (dbType == QSqlDriver::Interbase)
+        if (dbType == QSqlDriver::Interbase || dbType == QSqlDriver::MimerSQL)
             return QLatin1String("timestamp");
         return QLatin1String("datetime");
     }
 
-    static QString timeTypeName(QSqlDatabase db)
+    static QString timeTypeName(const QSqlDatabase &db)
     {
         const QSqlDriver::DbmsType dbType = tst_Databases::getDatabaseType(db);
         if (dbType == QSqlDriver::Oracle && getOraVersion(db) >= 9)
@@ -453,7 +368,7 @@ public:
         return QLatin1String("time");
     }
 
-    static QString dateTypeName(QSqlDatabase db)
+    static QString dateTypeName(const QSqlDatabase &db)
     {
         const QSqlDriver::DbmsType dbType = tst_Databases::getDatabaseType(db);
         if (dbType == QSqlDriver::Oracle && getOraVersion(db) >= 9)
@@ -461,7 +376,7 @@ public:
         return QLatin1String("date");
     }
 
-    static QString autoFieldName( QSqlDatabase db )
+    static QString autoFieldName(const QSqlDatabase &db)
     {
         const QSqlDriver::DbmsType dbType = tst_Databases::getDatabaseType(db);
         if (dbType == QSqlDriver::MySqlServer)
@@ -476,43 +391,35 @@ public:
         return QString();
     }
 
-    static QByteArray printError( const QSqlError& err )
+    static QByteArray printError(const QSqlError &err)
     {
         QString result;
         if (!err.nativeErrorCode().isEmpty())
-            result += '(' + err.nativeErrorCode() + ") ";
-        result += '\'';
-        if(!err.driverText().isEmpty())
+            result += u'(' + err.nativeErrorCode() + ") ";
+        result += u'\'';
+        if (!err.driverText().isEmpty())
             result += err.driverText() + "' || '";
-        result += err.databaseText() + QLatin1Char('\'');
+        result += err.databaseText() + u'\'';
         return result.toLocal8Bit();
     }
 
-    static QByteArray printError( const QSqlError& err, const QSqlDatabase& db )
+    static QByteArray printError(const QSqlError &err, const QSqlDatabase &db)
     {
-        QString result(dbToString(db) + ": ");
-        if (!err.nativeErrorCode().isEmpty())
-            result += '(' + err.nativeErrorCode() + ") ";
-        result += '\'';
-        if(!err.driverText().isEmpty())
-            result += err.driverText() + "' || '";
-        result += err.databaseText() + QLatin1Char('\'');
-        return result.toLocal8Bit();
+        return dbToString(db).toLocal8Bit() + ": " + printError(err);
     }
 
-    static QSqlDriver::DbmsType getDatabaseType(QSqlDatabase db)
+    static QSqlDriver::DbmsType getDatabaseType(const QSqlDatabase &db)
     {
-        QSqlDriverPrivate *d = static_cast<QSqlDriverPrivate *>(QObjectPrivate::get(db.driver()));
-        return d->dbmsType;
+        return db.driver()->dbmsType();
     }
 
-    static bool isMSAccess( QSqlDatabase db )
+    static bool isMSAccess(const QSqlDatabase &db)
     {
         return db.databaseName().contains( "Access Driver", Qt::CaseInsensitive );
     }
 
     // -1 on fail, else Oracle version
-    static int getOraVersion( QSqlDatabase db )
+    static int getOraVersion(const QSqlDatabase &db)
     {
         int ver = -1;
         QSqlQuery q( "SELECT banner FROM v$version", db );
@@ -531,28 +438,18 @@ public:
         return ver;
     }
 
-    static QString getMySqlVersion( const QSqlDatabase &db )
+    static QVersionNumber getIbaseEngineVersion(const QSqlDatabase &db)
     {
         QSqlQuery q(db);
-        q.exec( "select version()" );
-        if(q.next())
-            return q.value( 0 ).toString();
-        else
-            return QString();
-    }
-
-    static QString getPSQLVersion( const QSqlDatabase &db )
-    {
-        QSqlQuery q(db);
-        q.exec( "select version()" );
-        if(q.next())
-            return q.value( 0 ).toString();
-        else
-            return QString();
+        q.exec("SELECT rdb$get_context('SYSTEM', 'ENGINE_VERSION') as version from rdb$database;"_L1);
+        q.next();
+        auto record = q.record();
+        auto version = QVersionNumber::fromString(record.value(0).toString());
+        return version;
     }
 
     QStringList     dbNames;
-    int      counter;
+    int      counter = 0;
 
 private:
     QTemporaryDir *dbDir()
@@ -570,5 +467,61 @@ private:
     QScopedPointer<QTemporaryDir> m_dbDir;
 };
 
+class TableScope
+{
+public:
+    TableScope(const QSqlDatabase &db, const QString &fullTableName)
+        : m_db(db)
+        , m_tableName(fullTableName)
+    {
+        tst_Databases::safeDropTables(m_db, {m_tableName});
+    }
+    TableScope(const QSqlDatabase &db, const char *tableName, const char *file, bool escape = true)
+        : TableScope(db, qTableName(tableName, file, db, escape))
+    {
+    }
+
+    ~TableScope()
+    {
+        tst_Databases::safeDropTables(m_db, {m_tableName});
+    }
+
+    QString tableName() const
+    {
+        return m_tableName;
+    }
+private:
+    QSqlDatabase m_db;
+    QString m_tableName;
+};
+
+class ProcScope
+{
+public:
+    ProcScope(const QSqlDatabase &db, const char *procName, const char *file)
+        : m_db(db),
+          m_procName(qTableName(procName, file, db))
+    {
+        cleanup();
+    }
+    ~ProcScope()
+    {
+        cleanup();
+    }
+    QString name() const
+    {
+        return m_procName;
+    }
+protected:
+    void cleanup()
+    {
+        QSqlQuery q(m_db);
+        q.exec("DROP PROCEDURE IF EXISTS " + m_procName);
+    }
+private:
+    QSqlDatabase m_db;
+    const QString m_procName;
+};
+
 #endif
 
diff --git a/tests/auto/sql/kernel/qsqldatabase/tst_qsqldatabase.cpp b/tests/auto/sql/kernel/qsqldatabase/tst_qsqldatabase.cpp
index 8e1df673..28987253 100644
--- a/tests/auto/sql/kernel/qsqldatabase/tst_qsqldatabase.cpp
+++ b/tests/auto/sql/kernel/qsqldatabase/tst_qsqldatabase.cpp
@@ -28,8 +28,7 @@ class tst_QSqlDatabase : public QObject
     Q_OBJECT
 
 public:
-    tst_QSqlDatabase();
-    virtual ~tst_QSqlDatabase();
+    using QObject::QObject;
 
 public slots:
     void initTestCase();
@@ -50,8 +49,6 @@ private slots:
     void eventNotification_data() { generic_data(); }
     void eventNotification();
     void addDatabase();
-    void errorReporting_data();
-    void errorReporting();
     void cloneDatabase_data() { generic_data(); }
     void cloneDatabase();
 
@@ -62,8 +59,6 @@ private slots:
     void recordPSQL();
     void recordOCI_data() { generic_data("QOCI"); }
     void recordOCI();
-    void recordTDS_data() { generic_data("QTDS"); }
-    void recordTDS();
     void recordDB2_data() { generic_data("QDB2"); }
     void recordDB2();
     void recordSQLite_data() { generic_data("QSQLITE"); }
@@ -137,8 +132,6 @@ private slots:
     void ibase_numericFields(); // For task 125053
     void ibase_fetchBlobs_data() { generic_data("QIBASE"); }
     void ibase_fetchBlobs(); // For task 143471
-    void ibase_useCustomCharset_data() { generic_data("QIBASE"); }
-    void ibase_useCustomCharset(); // For task 134608
     void ibase_procWithoutReturnValues_data() { generic_data("QIBASE"); } // For task 165423
     void ibase_procWithoutReturnValues();
     void ibase_procWithReturnValues_data() { generic_data("QIBASE"); } // For task 177530
@@ -182,13 +175,13 @@ private slots:
     void sqlite_check_json1();
 
 private:
-    void createTestTables(QSqlDatabase db);
-    void dropTestTables(QSqlDatabase db);
-    void populateTestTables(QSqlDatabase db);
+    void createTestTables(const QSqlDatabase &db);
+    void dropTestTables(const QSqlDatabase &db);
+    void populateTestTables(const QSqlDatabase &db);
     void generic_data(const QString &engine=QString());
 
-    void testRecord(const FieldDef fieldDefs[], const QSqlRecord& inf, QSqlDatabase db);
-    void commonFieldTest(const FieldDef fieldDefs[], QSqlDatabase, const int);
+    void testRecord(const FieldDef fieldDefs[], const QSqlRecord& inf, const QSqlDatabase &db);
+    void commonFieldTest(const FieldDef fieldDefs[], const QSqlDatabase &db, const int fieldCount);
 
     tst_Databases dbs;
 };
@@ -223,11 +216,11 @@ struct FieldDef {
 
 // creates a table out of the FieldDefs and returns the number of fields
 // excluding the primary key field
-static int createFieldTable(const FieldDef fieldDefs[], QSqlDatabase db)
+static int createFieldTable(const FieldDef fieldDefs[], const QSqlDatabase &db)
 {
     QSqlDriver::DbmsType dbType = tst_Databases::getDatabaseType(db);
     const QString tableName = qTableName("qtestfields", __FILE__, db);
-    tst_Databases::safeDropTable(db, tableName);
+    tst_Databases::safeDropTables(db, {tableName});
     QSqlQuery q(db);
     // construct a create table statement consisting of all fieldtypes
     QString qs = "create table " + tableName;
@@ -258,22 +251,7 @@ static int createFieldTable(const FieldDef fieldDefs[], QSqlDatabase db)
     return i;
 }
 
-bool driverQuotedCaseSensitive(QSqlDatabase db)
-{
-    // On Interbase it will be case sensitive if it was created with quotes
-    QSqlDriverPrivate *d = static_cast<QSqlDriverPrivate *>(QObjectPrivate::get(db.driver()));
-    return (d && d->dbmsType == QSqlDriver::Interbase);
-}
-
-tst_QSqlDatabase::tst_QSqlDatabase()
-{
-}
-
-tst_QSqlDatabase::~tst_QSqlDatabase()
-{
-}
-
-void tst_QSqlDatabase::createTestTables(QSqlDatabase db)
+void tst_QSqlDatabase::createTestTables(const QSqlDatabase &db)
 {
     if (!db.isValid())
     return;
@@ -300,16 +278,14 @@ void tst_QSqlDatabase::createTestTables(QSqlDatabase db)
                " (id integer not null, t_varchar varchar(40) not null, "
                "t_char char(40), t_numeric numeric(6, 3), primary key (id, t_varchar))"));
     }
-    if (testWhiteSpaceNames(db.driverName())) {
-        QString qry = "create table " + qTableName("qtest test", __FILE__, db)
-            + '('
-            + db.driver()->escapeIdentifier(QLatin1String("test test"), QSqlDriver::FieldName)
-            + " int not null primary key)";
-        QVERIFY_SQL(q, exec(qry));
-    }
+    QString qry = "create table " + qTableName("qtest test", __FILE__, db)
+        + '('
+        + db.driver()->escapeIdentifier(QLatin1String("test test"), QSqlDriver::FieldName)
+        + " int not null primary key)";
+    QVERIFY_SQL(q, exec(qry));
 }
 
-void tst_QSqlDatabase::dropTestTables(QSqlDatabase db)
+void tst_QSqlDatabase::dropTestTables(const QSqlDatabase &db)
 {
     if (!db.isValid())
         return;
@@ -321,31 +297,11 @@ void tst_QSqlDatabase::dropTestTables(QSqlDatabase db)
     }
 
     // drop the view first, otherwise we'll get dependency problems
-    tst_Databases::safeDropViews(db, QStringList() << qTableName("qtest_view", __FILE__, db) << qTableName("qtest_view2", __FILE__, db));
-    const QString qtestTable = qTableName("qtest", __FILE__, db);
-    QStringList tableNames;
-    tableNames << qtestTable
-            << qTableName("qtest test", __FILE__, db)
-            << qTableName("qtestfields", __FILE__, db)
-            << qTableName("qtestalter", __FILE__, db)
-            << qTableName("qtest_temp", __FILE__, db)
-            << qTableName("qtest_bigint", __FILE__, db)
-            << qTableName("qtest_xmltype", __FILE__, db)
-            << qTableName("latin1table", __FILE__, db)
-            << qTableName("qtest_sqlguid", __FILE__, db)
-            << qTableName("batable", __FILE__, db)
-            << qTableName("qtest_prec", __FILE__, db)
-            << qTableName("uint", __FILE__, db)
-            << qTableName("strings", __FILE__, db)
-            << qTableName("numericfields", __FILE__, db)
-            << qTableName("qtest_ibaseblobs", __FILE__, db)
-            << qTableName("qtestBindBool", __FILE__, db)
-            << qTableName("testqGetString", __FILE__, db)
-            << qTableName("qtest_sqlguid", __FILE__, db)
-            << qTableName("uint_table", __FILE__, db)
-            << qTableName("uint_test", __FILE__, db)
-            << qTableName("bug_249059", __FILE__, db)
-            << qTableName("regexp_test", __FILE__, db);
+    tst_Databases::safeDropViews(db, {qTableName("qtest_view", __FILE__, db),
+                                      qTableName("qtest_view2", __FILE__, db)});
+    QStringList tableNames = {qTableName("qtest", __FILE__, db),
+                              qTableName("qtest test", __FILE__, db),
+                              qTableName("qtestfields", __FILE__, db)};
 
     QSqlQuery q(0, db);
     if (dbType == QSqlDriver::PostgreSQL) {
@@ -353,11 +309,8 @@ void tst_QSqlDatabase::dropTestTables(QSqlDatabase db)
         q.exec("drop schema " + qTableName("qtestScHeMa", __FILE__, db) + " cascade");
     }
 
-    if (testWhiteSpaceNames(db.driverName())) {
-        tableNames <<  db.driver()->escapeIdentifier(qTableName("qtest test", __FILE__, db),
-                                                     QSqlDriver::TableName);
-    }
-
+    tableNames << db.driver()->escapeIdentifier(qTableName("qtest test", __FILE__, db),
+                                                QSqlDriver::TableName);
     tst_Databases::safeDropTables(db, tableNames);
 
     if (dbType == QSqlDriver::Oracle) {
@@ -368,7 +321,7 @@ void tst_QSqlDatabase::dropTestTables(QSqlDatabase db)
     }
 }
 
-void tst_QSqlDatabase::populateTestTables(QSqlDatabase db)
+void tst_QSqlDatabase::populateTestTables(const QSqlDatabase &db)
 {
     if (!db.isValid())
         return;
@@ -440,36 +393,6 @@ void tst_QSqlDatabase::addDatabase()
     QVERIFY(!QSqlDatabase::contains("INVALID_CONNECTION"));
 }
 
-void tst_QSqlDatabase::errorReporting_data()
-{
-    QTest::addColumn<QString>("driver");
-
-    QTest::newRow("QTDS") << QString::fromLatin1("QTDS");
-    QTest::newRow("QTDS7") << QString::fromLatin1("QTDS7");
-}
-
-void tst_QSqlDatabase::errorReporting()
-{
-    QFETCH(QString, driver);
-
-    if (!QSqlDatabase::drivers().contains(driver))
-        QSKIP(QString::fromLatin1("Database driver %1 not available").arg(driver).toLocal8Bit().constData());
-
-    const QString dbName = QLatin1String("errorReportingDb-") + driver;
-    QSqlDatabase db = QSqlDatabase::addDatabase(driver, dbName);
-
-    db.setHostName(QLatin1String("127.0.0.1"));
-    db.setDatabaseName(QLatin1String("NonExistantDatabase"));
-    db.setUserName(QLatin1String("InvalidUser"));
-    db.setPassword(QLatin1String("IncorrectPassword"));
-
-    QVERIFY(!db.open());
-
-    db = QSqlDatabase();
-
-    QSqlDatabase::removeDatabase(dbName);
-}
-
 void tst_QSqlDatabase::open()
 {
     QFETCH(QString, dbName);
@@ -509,7 +432,7 @@ void tst_QSqlDatabase::tables()
     bool tempTables = false;
 
     QSqlQuery q(db);
-    if (!q.exec("CREATE VIEW " + qtest_view + " as select * from " + qtest)) {
+    if (!q.exec("CREATE VIEW " + qtest_view + " as select * from " + db.driver()->escapeIdentifier(qtest, QSqlDriver::TableName))) {
         qDebug("DBMS '%s' cannot handle VIEWs: %s",
                qPrintable(tst_Databases::dbToString(db)),
                qPrintable(tst_Databases::printError(q.lastError())));
@@ -562,34 +485,21 @@ void tst_QSqlDatabase::whitespaceInIdentifiers()
     QSqlDatabase db = QSqlDatabase::database(dbName);
     CHECK_DATABASE(db);
     const QSqlDriver::DbmsType dbType = tst_Databases::getDatabaseType(db);
+    const auto metaTypeToCheck = dbType == QSqlDriver::Oracle
+        ? QMetaType(QMetaType::Double) : QMetaType(QMetaType::Int);
 
-    if (testWhiteSpaceNames(db.driverName())) {
-        const bool isCaseSensitive = driverQuotedCaseSensitive(db);
-        const auto tableName(qTableName("qtest test", __FILE__, db, isCaseSensitive));
-        if (isCaseSensitive) {
-            QVERIFY(db.tables().contains(db.driver()->stripDelimiters(tableName, QSqlDriver::TableName)));
-        } else {
-            QVERIFY(db.tables().contains(tableName, Qt::CaseInsensitive));
-        }
+    const auto tableName(qTableName("qtest test", __FILE__, db, true));
+    QVERIFY(db.tables().contains(db.driver()->stripDelimiters(tableName, QSqlDriver::TableName)));
 
-        QSqlRecord rec = db.record(tableName);
-        QCOMPARE(rec.count(), 1);
-        QCOMPARE(rec.fieldName(0), QString("test test"));
-        if (dbType == QSqlDriver::Oracle)
-            QCOMPARE(rec.field(0).metaType(), QMetaType(QMetaType::Double));
-        else
-            QCOMPARE(rec.field(0).metaType(), QMetaType(QMetaType::Int));
+    QSqlRecord rec = db.record(tableName);
+    QCOMPARE(rec.count(), 1);
+    QCOMPARE(rec.fieldName(0), QString("test test"));
+    QCOMPARE(rec.field(0).metaType(), metaTypeToCheck);
 
-        QSqlIndex idx = db.primaryIndex(tableName);
-        QCOMPARE(idx.count(), 1);
-        QCOMPARE(idx.fieldName(0), QString("test test"));
-        if (dbType == QSqlDriver::Oracle)
-            QCOMPARE(idx.field(0).metaType(), QMetaType(QMetaType::Double));
-        else
-            QCOMPARE(idx.field(0).metaType(), QMetaType(QMetaType::Int));
-    } else {
-        QSKIP("DBMS does not support whitespaces in identifiers");
-    }
+    QSqlIndex idx = db.primaryIndex(tableName);
+    QCOMPARE(idx.count(), 1);
+    QCOMPARE(idx.fieldName(0), QString("test test"));
+    QCOMPARE(idx.field(0).metaType(), metaTypeToCheck);
 }
 
 void tst_QSqlDatabase::alterTable()
@@ -597,13 +507,11 @@ void tst_QSqlDatabase::alterTable()
     QFETCH(QString, dbName);
     QSqlDatabase db = QSqlDatabase::database(dbName);
     CHECK_DATABASE(db);
-    const QString qtestalter(qTableName("qtestalter", __FILE__, db));
-    const auto noEscapeAlterTable = qTableName("qtestalter", __FILE__, db, false);
-    const bool isCaseSensitive = driverQuotedCaseSensitive(db);
+    TableScope ts(db, "qtestalter", __FILE__);
     QSqlQuery q(db);
 
-    QVERIFY_SQL(q, exec("create table " + qtestalter + " (F1 char(20), F2 char(20), F3 char(20))"));
-    QSqlRecord rec = db.record(isCaseSensitive ? qtestalter : noEscapeAlterTable);
+    QVERIFY_SQL(q, exec("create table " + ts.tableName() + " (F1 char(20), F2 char(20), F3 char(20))"));
+    QSqlRecord rec = db.record(ts.tableName());
     QCOMPARE((int)rec.count(), 3);
 
     int i;
@@ -611,18 +519,18 @@ void tst_QSqlDatabase::alterTable()
         QCOMPARE(rec.field(i).name().toUpper(), QString("F%1").arg(i + 1));
     }
 
-    if (!q.exec("alter table " + qtestalter + " drop column F2")) {
+    if (!q.exec("alter table " + ts.tableName() + " drop column F2")) {
         QSKIP("DBMS doesn't support dropping columns in ALTER TABLE statement");
     }
 
-    rec = db.record(isCaseSensitive ? qtestalter : noEscapeAlterTable);
+    rec = db.record(ts.tableName());
 
-    QCOMPARE((int)rec.count(), 2);
+    QCOMPARE(rec.count(), 2);
 
     QCOMPARE(rec.field(0).name().toUpper(), QString("F1"));
     QCOMPARE(rec.field(1).name().toUpper(), QString("F3"));
 
-    q.exec("select * from " + qtestalter);
+    q.exec("select * from " + ts.tableName());
 }
 
 #if 0
@@ -650,12 +558,11 @@ void tst_QSqlDatabase::record()
 }
 #endif
 
-void tst_QSqlDatabase::testRecord(const FieldDef fieldDefs[], const QSqlRecord& inf, QSqlDatabase db)
+void tst_QSqlDatabase::testRecord(const FieldDef fieldDefs[], const QSqlRecord &inf, const QSqlDatabase &db)
 {
-    int i = 0;
     if (!tst_Databases::autoFieldName(db).isEmpty()) // Currently only MySQL is tested
-        QVERIFY2(inf.field(i).isAutoValue(), qPrintable(inf.field(i).name() + " should be reporting as an autovalue"));
-    for (i = 0; !fieldDefs[ i ].typeName.isNull(); ++i) {
+        QVERIFY2(inf.field(0).isAutoValue(), qPrintable(inf.field(0).name() + " should be reporting as an autovalue"));
+    for (int i = 0; !fieldDefs[ i ].typeName.isNull(); ++i) {
         QCOMPARE(inf.field(i+1).name().toUpper(), fieldDefs[ i ].fieldName().toUpper());
         if (inf.field(i+1).metaType().id() != fieldDefs[ i ].type) {
             QFAIL(qPrintable(QString(" Expected: '%1' Received: '%2' for field %3 in testRecord").arg(
@@ -670,13 +577,12 @@ void tst_QSqlDatabase::testRecord(const FieldDef fieldDefs[], const QSqlRecord&
 }
 
 // non-dbms specific tests
-void tst_QSqlDatabase::commonFieldTest(const FieldDef fieldDefs[], QSqlDatabase db, const int fieldCount)
+void tst_QSqlDatabase::commonFieldTest(const FieldDef fieldDefs[], const QSqlDatabase &db, const int fieldCount)
 {
     CHECK_DATABASE(db);
 
-    QStringList tableNames = { qTableName("qtestfields", __FILE__, db) };
-    if (!driverQuotedCaseSensitive(db))
-        tableNames << qTableName("qtestfields", __FILE__, db, false);
+    const QStringList tableNames = { qTableName("qtestfields", __FILE__, db),
+                                     qTableName("qtestfields", __FILE__, db, false) };
 
     for (const QString &table : tableNames) {
         QSqlRecord rec = db.record(table);
@@ -688,43 +594,6 @@ void tst_QSqlDatabase::commonFieldTest(const FieldDef fieldDefs[], QSqlDatabase
     QVERIFY_SQL(q, exec("select * from " + tableNames.at(0)));
 }
 
-void tst_QSqlDatabase::recordTDS()
-{
-    QFETCH(QString, dbName);
-    QSqlDatabase db = QSqlDatabase::database(dbName);
-    CHECK_DATABASE(db);
-
-    static const FieldDef fieldDefs[] = {
-        FieldDef("tinyint", QMetaType::Int,              255),
-        FieldDef("smallint", QMetaType::Int,             32767),
-        FieldDef("int", QMetaType::Int,                  2147483647),
-        FieldDef("numeric(10,9)", QMetaType::Double,     1.23456789),
-        FieldDef("decimal(10,9)", QMetaType::Double,     1.23456789),
-        FieldDef("float(4)", QMetaType::Double,          1.23456789),
-        FieldDef("double precision", QMetaType::Double,  1.23456789),
-        FieldDef("real", QMetaType::Double,              1.23456789),
-        FieldDef("smallmoney", QMetaType::Double,        100.42),
-        FieldDef("money", QMetaType::Double,             200.42),
-        // accuracy is that of a minute
-        FieldDef("smalldatetime", QMetaType::QDateTime,   QDateTime(QDate::currentDate(), QTime(1, 2, 0, 0))),
-        // accuracy is that of a second
-        FieldDef("datetime", QMetaType::QDateTime,        QDateTime(QDate::currentDate(), QTime(1, 2, 3, 0))),
-        FieldDef("char(20)", QMetaType::QString,          "blah1"),
-        FieldDef("varchar(20)", QMetaType::QString,       "blah2"),
-        FieldDef("nchar(20)", QMetaType::QString,         "blah3"),
-        FieldDef("nvarchar(20)", QMetaType::QString,      "blah4"),
-        FieldDef("text", QMetaType::QString,              "blah5"),
-        FieldDef("bit", QMetaType::Int,                  1, false),
-
-        FieldDef()
-    };
-
-    const int fieldCount = createFieldTable(fieldDefs, db);
-    QVERIFY(fieldCount > 0);
-
-    commonFieldTest(fieldDefs, db, fieldCount);
-}
-
 void tst_QSqlDatabase::recordOCI()
 {
     bool hasTimeStamp = false;
@@ -871,22 +740,6 @@ void tst_QSqlDatabase::recordMySQL()
     QSqlDatabase db = QSqlDatabase::database(dbName);
     CHECK_DATABASE(db);
 
-    FieldDef bin10, varbin10;
-    int major = tst_Databases::getMySqlVersion( db ).section( QChar('.'), 0, 0 ).toInt();
-    int minor = tst_Databases::getMySqlVersion( db ).section( QChar('.'), 1, 1 ).toInt();
-    int revision = tst_Databases::getMySqlVersion( db ).section( QChar('.'), 2, 2 ).toInt();
-    int vernum = (major << 16) + (minor << 8) + revision;
-
-    /* The below is broken in mysql below 5.0.15
-        see http://dev.mysql.com/doc/refman/5.0/en/binary-varbinary.html
-        specifically: Before MySQL 5.0.15, the pad value is space. Values are right-padded
-        with space on insert, and trailing spaces are removed on select.
-    */
-    if( vernum >= ((5 << 16) + 15) ) {
-        bin10 = FieldDef("binary(10)", QMetaType::QByteArray, QString("123abc    "));
-        varbin10 = FieldDef("varbinary(10)", QMetaType::QByteArray, QString("123abcv   "));
-    }
-
     static QDateTime dt(QDate::currentDate(), QTime(1, 2, 3, 0));
     static const FieldDef fieldDefs[] = {
         FieldDef("tinyint", QMetaType::Char, 127),
@@ -1168,28 +1021,37 @@ void tst_QSqlDatabase::bigIntField()
     QSqlDatabase db = QSqlDatabase::database(dbName);
     CHECK_DATABASE(db);
     const QSqlDriver::DbmsType dbType = tst_Databases::getDatabaseType(db);
-    const QString qtest_bigint(qTableName("qtest_bigint", __FILE__, db));
 
+    QString queryString;
+    switch (dbType) {
+    case QSqlDriver::MySqlServer:
+        queryString = "create table %1 (id int, t_s64bit bigint, t_u64bit bigint unsigned)";
+        break;
+    case QSqlDriver::DB2:
+    case QSqlDriver::Interbase:
+    case QSqlDriver::MimerSQL:
+    case QSqlDriver::MSSqlServer:
+    case QSqlDriver::PostgreSQL:
+        queryString = "create table %1 (id int, t_s64bit bigint, t_u64bit bigint)";
+        break;
+    case QSqlDriver::Oracle:
+    case QSqlDriver::SQLite:
+        queryString = "create table %1 (id int, t_s64bit int, t_u64bit int)";
+        break;
+    case QSqlDriver::Sybase:
+    case QSqlDriver::UnknownDbms:
+        break;
+    }
+    if (queryString.isEmpty())
+        QSKIP("no 64 bit integer support");
+
+    TableScope ts(db, "qtest_bigint", __FILE__);
     QSqlQuery q(db);
     q.setForwardOnly(true);
-
     if (dbType == QSqlDriver::Oracle)
         q.setNumericalPrecisionPolicy(QSql::LowPrecisionInt64);
-
-    if (dbType == QSqlDriver::MySqlServer) {
-        QVERIFY_SQL(q, exec("create table " + qtest_bigint + " (id int, t_s64bit bigint, t_u64bit bigint unsigned)"));
-    } else if (dbType == QSqlDriver::PostgreSQL
-                || dbType == QSqlDriver::DB2
-                || dbType == QSqlDriver::MSSqlServer) {
-        QVERIFY_SQL(q, exec("create table " + qtest_bigint + "(id int, t_s64bit bigint, t_u64bit bigint)"));
-    } else if (dbType == QSqlDriver::Oracle) {
-        QVERIFY_SQL(q, exec("create table " + qtest_bigint + " (id int, t_s64bit int, t_u64bit int)"));
-    //} else if (dbType == QSqlDriver::Interbase) {
-    //    QVERIFY_SQL(q, exec("create table " + qtest_bigint + " (id int, t_s64bit int64, t_u64bit int64)"));
-    } else {
-        QSKIP("no 64 bit integer support");
-    }
-    QVERIFY(q.prepare("insert into " + qtest_bigint + " values (?, ?, ?)"));
+    QVERIFY_SQL(q, exec(queryString.arg(ts.tableName())));
+    QVERIFY(q.prepare("insert into " + ts.tableName() + " values (?, ?, ?)"));
     qlonglong ll = Q_INT64_C(9223372036854775807);
     qulonglong ull = Q_UINT64_C(18446744073709551615);
 
@@ -1213,7 +1075,7 @@ void tst_QSqlDatabase::bigIntField()
         q.bindValue(2,  (qlonglong) ull);
         QVERIFY_SQL(q, exec());
     }
-    QVERIFY(q.exec("select * from " + qtest_bigint + " order by id"));
+    QVERIFY(q.exec("select * from " + ts.tableName() + " order by id"));
     QVERIFY(q.next());
     QCOMPARE(q.value(1).toDouble(), (double)ll);
     QCOMPARE(q.value(1).toLongLong(), ll);
@@ -1242,7 +1104,7 @@ void tst_QSqlDatabase::caseSensivity()
         cs = true;
     }
 
-    QSqlRecord rec = db.record(qTableName("qtest", __FILE__, db, driverQuotedCaseSensitive(db)));
+    QSqlRecord rec = db.record(qTableName("qtest", __FILE__, db));
     QVERIFY(rec.count() > 0);
     if (!cs) {
         rec = db.record(qTableName("QTEST", __FILE__, db, false).toUpper());
@@ -1251,7 +1113,7 @@ void tst_QSqlDatabase::caseSensivity()
         QVERIFY(rec.count() > 0);
     }
 
-    rec = db.primaryIndex(qTableName("qtest", __FILE__, db, driverQuotedCaseSensitive(db)));
+    rec = db.primaryIndex(qTableName("qtest", __FILE__, db));
     QVERIFY(rec.count() > 0);
     if (!cs) {
         rec = db.primaryIndex(qTableName("QTEST", __FILE__, db, false).toUpper());
@@ -1261,12 +1123,11 @@ void tst_QSqlDatabase::caseSensivity()
     }
 
     // Explicit test for case sensitive table creation without quoting
+    TableScope ts(db, "NoQuotes", __FILE__, false);
     QSqlQuery qry(db);
-    const auto noQuotesTable = qTableName("NoQuotes", __FILE__, db, false);
-    tst_Databases::safeDropTable(db, noQuotesTable);
-    QVERIFY_SQL(qry, exec("CREATE TABLE " + noQuotesTable + " (id INTEGER)"));
-    QVERIFY_SQL(qry, exec("INSERT INTO " + noQuotesTable + " VALUES(1)"));
-    QVERIFY_SQL(qry, exec("SELECT * FROM " + noQuotesTable));
+    QVERIFY_SQL(qry, exec("CREATE TABLE " + ts.tableName() + " (id INTEGER)"));
+    QVERIFY_SQL(qry, exec("INSERT INTO " + ts.tableName() + " VALUES(1)"));
+    QVERIFY_SQL(qry, exec("SELECT * FROM " + ts.tableName()));
     QVERIFY_SQL(qry, next());
     QCOMPARE(qry.value(0).toInt(), 1);
     // QMYSQLDriver::record() is using a mysql function instead of a query, so quoting
@@ -1276,7 +1137,11 @@ void tst_QSqlDatabase::caseSensivity()
         QVERIFY_SQL(qry, next());
         cs = qry.value(1).toInt() != 0;
     }
-    rec = db.record(cs ? noQuotesTable.toLower() : noQuotesTable);
+    if (dbType == QSqlDriver::Interbase) {
+        rec = db.record(ts.tableName().toUpper());
+    } else {
+        rec = db.record(cs ? ts.tableName().toLower() : ts.tableName());
+    }
     QVERIFY(rec.count() > 0);
 }
 
@@ -1382,24 +1247,24 @@ void tst_QSqlDatabase::psql_escapeBytea()
     QFETCH(QString, dbName);
     QSqlDatabase db = QSqlDatabase::database(dbName);
     CHECK_DATABASE(db);
+    TableScope ts(db, "batable", __FILE__);
 
     const char dta[4] = {'\x71', '\x14', '\x32', '\x81'};
     QByteArray ba(dta, 4);
 
     QSqlQuery q(db);
-    const QString tableName(qTableName("batable", __FILE__, db));
-    QVERIFY_SQL(q, exec(QString("CREATE TABLE %1 (ba bytea)").arg(tableName)));
+    QVERIFY_SQL(q, exec(QString("CREATE TABLE %1 (ba bytea)").arg(ts.tableName())));
 
     QSqlQuery iq(db);
-    QVERIFY_SQL(iq, prepare(QString("INSERT INTO %1 VALUES (?)").arg(tableName)));
+    QVERIFY_SQL(iq, prepare(QString("INSERT INTO %1 VALUES (?)").arg(ts.tableName())));
     iq.bindValue(0, QVariant(ba));
     QVERIFY_SQL(iq, exec());
 
-    QVERIFY_SQL(q, exec(QString("SELECT ba FROM %1").arg(tableName)));
+    QVERIFY_SQL(q, exec(QString("SELECT ba FROM %1").arg(ts.tableName())));
     QVERIFY_SQL(q, next());
 
     QByteArray res = q.value(0).toByteArray();
-    int i = 0;
+    qsizetype i = 0;
     for (; i < ba.size(); ++i){
         if (ba[i] != res[i])
             break;
@@ -1413,13 +1278,13 @@ void tst_QSqlDatabase::psql_bug249059()
     QFETCH(QString, dbName);
     QSqlDatabase db = QSqlDatabase::database(dbName);
     CHECK_DATABASE(db);
+    TableScope ts(db, "bug_249059", __FILE__);
 
     QSqlQuery q(db);
-    const QString tableName(qTableName("bug_249059", __FILE__, db));
-    QVERIFY_SQL(q, exec(QString("CREATE TABLE %1 (dt timestamp, t time)").arg(tableName)));
+    QVERIFY_SQL(q, exec(QString("CREATE TABLE %1 (dt timestamp, t time)").arg(ts.tableName())));
 
     QSqlQuery iq(db);
-    QVERIFY_SQL(iq, prepare(QString("INSERT INTO %1 VALUES (?, ?)").arg(tableName)));
+    QVERIFY_SQL(iq, prepare(QString("INSERT INTO %1 VALUES (?, ?)").arg(ts.tableName())));
     iq.bindValue(0, QVariant(QString("2001-09-09 04:05:06.789 -5:00")));
     iq.bindValue(1, QVariant(QString("04:05:06.789 -5:00")));
     QVERIFY_SQL(iq, exec());
@@ -1427,7 +1292,7 @@ void tst_QSqlDatabase::psql_bug249059()
     iq.bindValue(1, QVariant(QString("04:05:06.789 +5:00")));
     QVERIFY_SQL(iq, exec());
 
-    QVERIFY_SQL(q, exec(QString("SELECT dt, t FROM %1").arg(tableName)));
+    QVERIFY_SQL(q, exec(QString("SELECT dt, t FROM %1").arg(ts.tableName())));
     QVERIFY_SQL(q, next());
     QDateTime dt1=q.value(0).toDateTime();
     QTime t1=q.value(1).toTime();
@@ -1440,17 +1305,15 @@ void tst_QSqlDatabase::psql_bug249059()
     QCOMPARE(t1, t2);
 }
 
-// This test should be rewritten to work with Oracle as well - or the Oracle driver
-// should be fixed to make this test pass (handle overflows)
 void tst_QSqlDatabase::precisionPolicy()
 {
     QFETCH(QString, dbName);
     QSqlDatabase db = QSqlDatabase::database(dbName);
     CHECK_DATABASE(db);
-//     DBMS_SPECIFIC(db, "QPSQL");
+    TableScope ts(db, "qtest_prec", __FILE__);
+    const auto &tableName = ts.tableName();
 
     QSqlQuery q(db);
-    const QString tableName(qTableName("qtest_prec", __FILE__, db));
     if(!db.driver()->hasFeature(QSqlDriver::LowPrecisionNumbers))
         QSKIP("Driver or database doesn't support setting precision policy");
 
@@ -1543,11 +1406,10 @@ void tst_QSqlDatabase::infinityAndNan()
        QSKIP("checking for infinity/nan currently only works for PostgreSQL");
 
     QSqlQuery q(db);
-    const QString tableName(qTableName("infititytest", __FILE__, db));
-    tst_Databases::safeDropTables(db, {tableName});
-    QVERIFY_SQL(q, exec(QString("CREATE TABLE %1 (id smallint, val double precision)").arg(tableName)));
+    TableScope ts(db, "infititytest", __FILE__);
+    QVERIFY_SQL(q, exec(QString("CREATE TABLE %1 (id smallint, val double precision)").arg(ts.tableName())));
 
-    QVERIFY_SQL(q, prepare(QString("INSERT INTO %1 VALUES (?, ?)").arg(tableName)));
+    QVERIFY_SQL(q, prepare(QString("INSERT INTO %1 VALUES (?, ?)").arg(ts.tableName())));
 
     q.bindValue(0, 1);
     q.bindValue(1, qQNaN());
@@ -1559,7 +1421,7 @@ void tst_QSqlDatabase::infinityAndNan()
     q.bindValue(1, -qInf());
     QVERIFY_SQL(q, exec());
 
-    QVERIFY_SQL(q, exec(QString("SELECT val FROM %1 ORDER BY id").arg(tableName)));
+    QVERIFY_SQL(q, exec(QString("SELECT val FROM %1 ORDER BY id").arg(ts.tableName())));
 
     QVERIFY_SQL(q, next());
     QVERIFY(qIsNaN(q.value(0).toDouble()));
@@ -1582,14 +1444,14 @@ void tst_QSqlDatabase::mysqlOdbc_unsignedIntegers()
 
     if (tst_Databases::getDatabaseType(db) != QSqlDriver::MySqlServer || !db.driverName().startsWith("QODBC"))
        QSKIP("MySQL through ODBC-driver specific test");
+    TableScope ts(db, "uint", __FILE__);
 
     QSqlQuery q(db);
-    const QString tableName(qTableName("uint", __FILE__, db));
-    QVERIFY_SQL(q, exec(QString("CREATE TABLE %1 (foo integer(10) unsigned, bar integer(10))").arg(tableName)));
-    QVERIFY_SQL(q, exec(QString("INSERT INTO %1 VALUES (-4000000000, -4000000000)").arg(tableName)));
-    QVERIFY_SQL(q, exec(QString("INSERT INTO %1 VALUES (4000000000, 4000000000)").arg(tableName)));
+    QVERIFY_SQL(q, exec(QString("CREATE TABLE %1 (foo integer(10) unsigned, bar integer(10))").arg(ts.tableName())));
+    QVERIFY_SQL(q, exec(QString("INSERT INTO %1 VALUES (-4000000000, -4000000000)").arg(ts.tableName())));
+    QVERIFY_SQL(q, exec(QString("INSERT INTO %1 VALUES (4000000000, 4000000000)").arg(ts.tableName())));
 
-    QVERIFY_SQL(q, exec(QString("SELECT foo, bar FROM %1").arg(tableName)));
+    QVERIFY_SQL(q, exec(QString("SELECT foo, bar FROM %1").arg(ts.tableName())));
     QVERIFY(q.next());
     QCOMPARE(q.value(0).toString(), QString("0"));
     QCOMPARE(q.value(1).toString(), QString("-2147483648"));
@@ -1606,13 +1468,13 @@ void tst_QSqlDatabase::accessOdbc_strings()
 
     if (!tst_Databases::isMSAccess(db))
         QSKIP("MS Access specific test");
+    TableScope ts(db, "strings", __FILE__);
 
     QSqlQuery q(db);
-    const QString tableName(qTableName("strings", __FILE__, db));
     QVERIFY_SQL(q, exec(QString("CREATE TABLE %1 (aStr memo, bStr memo, cStr memo, dStr memo"
-            ", eStr memo, fStr memo, gStr memo, hStr memo)").arg(tableName)));
+            ", eStr memo, fStr memo, gStr memo, hStr memo)").arg(ts.tableName())));
 
-    QVERIFY_SQL(q, prepare(QString("INSERT INTO %1 VALUES (?, ?, ?, ?, ?, ?, ?, ?)").arg(tableName)));
+    QVERIFY_SQL(q, prepare(QString("INSERT INTO %1 VALUES (?, ?, ?, ?, ?, ?, ?, ?)").arg(ts.tableName())));
     QString aStr, bStr, cStr, dStr, eStr, fStr, gStr, hStr;
 
     q.bindValue(0, aStr.fill('A', 32));
@@ -1626,7 +1488,7 @@ void tst_QSqlDatabase::accessOdbc_strings()
 
     QVERIFY_SQL(q, exec());
 
-    QVERIFY_SQL(q, exec(QString("SELECT aStr, bStr, cStr, dStr, eStr, fStr, gStr, hStr FROM %1").arg(tableName)));
+    QVERIFY_SQL(q, exec(QString("SELECT aStr, bStr, cStr, dStr, eStr, fStr, gStr, hStr FROM %1").arg(ts.tableName())));
     q.next();
     QCOMPARE(q.value(0).toString(), aStr);
     QCOMPARE(q.value(1).toString(), bStr);
@@ -1644,9 +1506,10 @@ void tst_QSqlDatabase::ibase_numericFields()
     QFETCH(QString, dbName);
     QSqlDatabase db = QSqlDatabase::database(dbName);
     CHECK_DATABASE(db);
+    TableScope ts(db, "numericfields", __FILE__);
+    const auto &tableName = ts.tableName();
 
     QSqlQuery q(db);
-    const QString tableName(qTableName("numericfields", __FILE__, db));
     QVERIFY_SQL(q, exec(QString("CREATE TABLE %1 (id int not null, num1 NUMERIC(2,1), "
         "num2 NUMERIC(5,2), num3 NUMERIC(10,3), "
         "num4 NUMERIC(18,4))").arg(tableName)));
@@ -1717,8 +1580,9 @@ void tst_QSqlDatabase::ibase_fetchBlobs()
     QFETCH(QString, dbName);
     QSqlDatabase db = QSqlDatabase::database(dbName);
     CHECK_DATABASE(db);
+    TableScope ts(db, "qtest_ibaseblobs", __FILE__);
+    const auto &tableName = ts.tableName();
 
-    const QString tableName(qTableName("qtest_ibaseblobs", __FILE__, db));
     QSqlQuery q(db);
     QVERIFY_SQL(q, exec(QString("CREATE TABLE %1 (blob1 BLOB segment size 256)").arg(tableName)));
 
@@ -1749,13 +1613,11 @@ void tst_QSqlDatabase::ibase_procWithoutReturnValues()
     QFETCH(QString, dbName);
     QSqlDatabase db = QSqlDatabase::database(dbName);
     CHECK_DATABASE(db);
+    ProcScope ps(db, "qtest_proc1", __FILE__);
 
     QSqlQuery q(db);
-    const QString procName(qTableName("qtest_proc1", __FILE__, db));
-    q.exec(QString("drop procedure %1").arg(procName));
-    QVERIFY_SQL(q, exec("CREATE PROCEDURE " + procName + " (str VARCHAR(10))\nAS BEGIN\nstr='test';\nEND;"));
-    QVERIFY_SQL(q, exec(QString("execute procedure %1('qtest')").arg(procName)));
-    q.exec(QString("drop procedure %1").arg(procName));
+    QVERIFY_SQL(q, exec("CREATE PROCEDURE " + ps.name() + " (str VARCHAR(10))\nAS BEGIN\nstr='test';\nEND;"));
+    QVERIFY_SQL(q, exec(QString("execute procedure %1('qtest')").arg(ps.name())));
 }
 
 void tst_QSqlDatabase::ibase_procWithReturnValues()
@@ -1763,12 +1625,10 @@ void tst_QSqlDatabase::ibase_procWithReturnValues()
     QFETCH(QString, dbName);
     QSqlDatabase db = QSqlDatabase::database(dbName);
     CHECK_DATABASE(db);
-
-    const QString procName(qTableName("qtest_proc2", __FILE__, db));
+    ProcScope ps(db, "qtest_proc2", __FILE__);
 
     QSqlQuery q(db);
-    q.exec(QString("drop procedure %1").arg(procName));
-    QVERIFY_SQL(q, exec("CREATE PROCEDURE " + procName + " ("
+    QVERIFY_SQL(q, exec("CREATE PROCEDURE " + ps.name() + " ("
                         "\nABC INTEGER)"
                         "\nRETURNS ("
                         "\nRESULT INTEGER)"
@@ -1779,13 +1639,13 @@ void tst_QSqlDatabase::ibase_procWithReturnValues()
                         "\nend"));
 
     // Interbase procedures can be executed in two ways: EXECUTE PROCEDURE or SELECT
-    QVERIFY_SQL(q, exec(QString("execute procedure %1(123)").arg(procName)));
+    QVERIFY_SQL(q, exec(QString("execute procedure %1(123)").arg(ps.name())));
     QVERIFY_SQL(q, next());
     QCOMPARE(q.value(0).toInt(), 1230);
-    QVERIFY_SQL(q, exec(QString("select result from %1(456)").arg(procName)));
+    QVERIFY_SQL(q, exec(QString("select result from %1(456)").arg(ps.name())));
     QVERIFY_SQL(q, next());
     QCOMPARE(q.value(0).toInt(), 4560);
-    QVERIFY_SQL(q, prepare(QLatin1String("execute procedure ")+procName+QLatin1String("(?)")));
+    QVERIFY_SQL(q, prepare(QLatin1String("execute procedure ") + ps.name() + QLatin1String("(?)")));
     q.bindValue(0, 123);
     QVERIFY_SQL(q, exec());
     QVERIFY_SQL(q, next());
@@ -1794,8 +1654,6 @@ void tst_QSqlDatabase::ibase_procWithReturnValues()
     QVERIFY_SQL(q, exec());
     QVERIFY_SQL(q, next());
     QCOMPARE(q.value(0).toInt(), 4560);
-
-    q.exec(QString("drop procedure %1").arg(procName));
 }
 
 void tst_QSqlDatabase::formatValueTrimStrings()
@@ -1852,13 +1710,13 @@ void tst_QSqlDatabase::odbc_bindBoolean()
     QSqlDriver::DbmsType dbType = tst_Databases::getDatabaseType(db);
     if (dbType == QSqlDriver::MySqlServer)
         QSKIP("MySql has inconsistent behaviour of bit field type across versions.");
+    TableScope ts(db, "qtestBindBool", __FILE__);
 
     QSqlQuery q(db);
-    const QString tableName = qTableName("qtestBindBool", __FILE__, db);
-    QVERIFY_SQL(q, exec("CREATE TABLE " + tableName + "(id int, boolvalue bit)"));
+    QVERIFY_SQL(q, exec("CREATE TABLE " + ts.tableName() + "(id int, boolvalue bit)"));
 
     // Bind and insert
-    QVERIFY_SQL(q, prepare("INSERT INTO " + tableName + " VALUES(?, ?)"));
+    QVERIFY_SQL(q, prepare("INSERT INTO " + ts.tableName() + " VALUES(?, ?)"));
     q.bindValue(0, 1);
     q.bindValue(1, true);
     QVERIFY_SQL(q, exec());
@@ -1867,7 +1725,7 @@ void tst_QSqlDatabase::odbc_bindBoolean()
     QVERIFY_SQL(q, exec());
 
     // Retrive
-    QVERIFY_SQL(q, exec("SELECT id, boolvalue FROM " + tableName + " ORDER BY id"));
+    QVERIFY_SQL(q, exec("SELECT id, boolvalue FROM " + ts.tableName() + " ORDER BY id"));
     QVERIFY_SQL(q, next());
     QCOMPARE(q.value(0).toInt(), 1);
     QCOMPARE(q.value(1).toBool(), true);
@@ -1881,7 +1739,8 @@ void tst_QSqlDatabase::odbc_testqGetString()
     QFETCH(QString, dbName);
     QSqlDatabase db = QSqlDatabase::database(dbName);
     CHECK_DATABASE(db);
-    const QString testqGetString(qTableName("testqGetString", __FILE__, db));
+    TableScope ts(db, "testqGetString", __FILE__);
+    const auto &testqGetString = ts.tableName();
 
     QSqlQuery q(db);
     QSqlDriver::DbmsType dbType = tst_Databases::getDatabaseType(db);
@@ -1936,31 +1795,6 @@ void tst_QSqlDatabase::mysql_multiselect()
     QVERIFY_SQL(q, exec("SELECT * FROM " + qtest));
 }
 
-void tst_QSqlDatabase::ibase_useCustomCharset()
-{
-    QFETCH(QString, dbName);
-    QSqlDatabase db = QSqlDatabase::database(dbName);
-    CHECK_DATABASE(db);
-    QString nonlatin1string("��");
-
-    db.close();
-    db.setConnectOptions("ISC_DPB_LC_CTYPE=Latin1");
-    db.open();
-
-    const QString tableName(qTableName("latin1table", __FILE__, db));
-
-    QSqlQuery q(db);
-    QEXPECT_FAIL("", "Currently fails, potentially due to invalid test - needs further "
-                     "investigation - QTBUG-85828", Abort);
-    QVERIFY_SQL(q, exec(QString("CREATE TABLE %1(text VARCHAR(6) CHARACTER SET Latin1)").arg(tableName)));
-    QVERIFY_SQL(q, prepare(QString("INSERT INTO %1 VALUES(?)").arg(tableName)));
-    q.addBindValue(nonlatin1string);
-    QVERIFY_SQL(q, exec());
-    QVERIFY_SQL(q, exec(QString("SELECT text FROM %1").arg(tableName)));
-    QVERIFY_SQL(q, next());
-    QCOMPARE(toHex(q.value(0).toString()), toHex(nonlatin1string));
-}
-
 void tst_QSqlDatabase::oci_serverDetach()
 {
     QFETCH(QString, dbName);
@@ -1986,8 +1820,9 @@ void tst_QSqlDatabase::oci_xmltypeSupport()
     QFETCH(QString, dbName);
     QSqlDatabase db = QSqlDatabase::database(dbName);
     CHECK_DATABASE(db);
+    TableScope ts(db, "qtest_xmltype", __FILE__);
+    const auto &tableName = ts.tableName();
 
-    const QString tableName(qTableName("qtest_xmltype", __FILE__, db));
     QString xml("<?xml version=\"1.0\"?>\n<TABLE_NAME>MY_TABLE</TABLE_NAME>\n");
     QSqlQuery q(db);
 
@@ -2065,14 +1900,14 @@ void tst_QSqlDatabase::odbc_uniqueidentifier()
     if (dbType != QSqlDriver::MSSqlServer)
         QSKIP("SQL Server (ODBC) specific test");
 
-    const QString tableName(qTableName("qtest_sqlguid", __FILE__, db));
+    TableScope ts(db, "qtest_sqlguid", __FILE__);
     QString guid = QString("AAAAAAAA-BBBB-CCCC-DDDD-EEEEEEEEEEEE");
     QString invalidGuid = QString("GAAAAAAA-BBBB-CCCC-DDDD-EEEEEEEEEEEE");
 
     QSqlQuery q(db);
-    QVERIFY_SQL(q, exec(QString("CREATE TABLE %1(id uniqueidentifier)").arg(tableName)));
+    QVERIFY_SQL(q, exec(QString("CREATE TABLE %1(id uniqueidentifier)").arg(ts.tableName())));
 
-    q.prepare(QString("INSERT INTO %1 VALUES(?)").arg(tableName));;
+    q.prepare(QString("INSERT INTO %1 VALUES(?)").arg(ts.tableName()));
     q.addBindValue(guid);
     QVERIFY_SQL(q, exec());
 
@@ -2081,7 +1916,7 @@ void tst_QSqlDatabase::odbc_uniqueidentifier()
         Continue);
     QVERIFY_SQL(q, exec());
 
-    QVERIFY_SQL(q, exec(QString("SELECT id FROM %1").arg(tableName)));
+    QVERIFY_SQL(q, exec(QString("SELECT id FROM %1").arg(ts.tableName())));
     QVERIFY_SQL(q, next());
     QCOMPARE(q.value(0).toString(), guid);
 }
@@ -2107,20 +1942,20 @@ void tst_QSqlDatabase::odbc_uintfield()
     QFETCH(QString, dbName);
     QSqlDatabase db = QSqlDatabase::database(dbName);
     CHECK_DATABASE(db);
+    TableScope ts(db, "uint_table", __FILE__);
 
-    const QString tableName(qTableName("uint_table", __FILE__, db));
-    unsigned int val = 4294967295U;
+    constexpr auto val = std::numeric_limits<unsigned int>::max();
 
     QSqlQuery q(db);
     if ( tst_Databases::isMSAccess( db ) )
-        QVERIFY_SQL(q, exec(QString("CREATE TABLE %1(num number)").arg(tableName)));
+        QVERIFY_SQL(q, exec(QString("CREATE TABLE %1(num number)").arg(ts.tableName())));
     else
-        QVERIFY_SQL(q, exec(QString("CREATE TABLE %1(num numeric(10))").arg(tableName)));
-    q.prepare(QString("INSERT INTO %1 VALUES(?)").arg(tableName));
+        QVERIFY_SQL(q, exec(QString("CREATE TABLE %1(num numeric(10))").arg(ts.tableName())));
+    q.prepare(QString("INSERT INTO %1 VALUES(?)").arg(ts.tableName()));
     q.addBindValue(val);
     QVERIFY_SQL(q, exec());
 
-    q.exec(QString("SELECT num FROM %1").arg(tableName));
+    q.exec(QString("SELECT num FROM %1").arg(ts.tableName()));
     if (q.next())
         QCOMPARE(q.value(0).toUInt(), val);
 }
@@ -2177,38 +2012,32 @@ void tst_QSqlDatabase::eventNotificationIBase()
 {
     QFETCH(QString, dbName);
     QSqlDatabase db = QSqlDatabase::database(dbName);
-    if (db.driverName().compare(QLatin1String("QIBASE"), Qt::CaseInsensitive))
-        QSKIP("QIBASE specific test");
     CHECK_DATABASE(db);
 
-    const QString procedureName(qTableName("posteventProc", __FILE__, db));
+    ProcScope ps(db, "posteventProc", __FILE__);
     QSqlDriver *driver=db.driver();
-    QVERIFY_SQL(*driver, subscribeToNotification(procedureName));
+    QVERIFY_SQL(*driver, subscribeToNotification(ps.name()));
     QTest::qWait(300);  // Interbase needs some time to call the driver callback.
 
     db.transaction();   // InterBase events are posted from within transactions.
     QSqlQuery q(db);
-    q.exec(QString("DROP PROCEDURE %1").arg(procedureName));
-    q.exec(QString("CREATE PROCEDURE %1\nAS BEGIN\nPOST_EVENT '%1';\nEND;").arg(procedureName));
-    q.exec(QString("EXECUTE PROCEDURE %1").arg(procedureName));
-    QSignalSpy spy(driver, QOverload<const QString &, QSqlDriver::NotificationSource, const QVariant &>::of(&QSqlDriver::notification));
+    q.exec(QString("CREATE PROCEDURE %1\nAS BEGIN\nPOST_EVENT '%1';\nEND;").arg(ps.name()));
+    q.exec(QString("EXECUTE PROCEDURE %1").arg(ps.name()));
+    QSignalSpy spy(driver, &QSqlDriver::notification);
     db.commit();        // No notifications are posted until the transaction is committed.
     // Interbase needs some time to post the notification and call the driver callback.
     // This happends from another thread, and we have to process events in order for the
     // event handler in the driver to be executed and emit the notification signal.
     QTRY_COMPARE(spy.size(), 1);
     QList<QVariant> arguments = spy.takeFirst();
-    QCOMPARE(arguments.at(0).toString(), procedureName);
-    QVERIFY_SQL(*driver, unsubscribeFromNotification(procedureName));
-    q.exec(QString("DROP PROCEDURE %1").arg(procedureName));
+    QCOMPARE(arguments.at(0).toString(), ps.name());
+    QVERIFY_SQL(*driver, unsubscribeFromNotification(ps.name()));
 }
 
 void tst_QSqlDatabase::eventNotificationPSQL()
 {
     QFETCH(QString, dbName);
     QSqlDatabase db = QSqlDatabase::database(dbName);
-    if (db.driverName().compare(QLatin1String("QPSQL"), Qt::CaseInsensitive))
-        QSKIP("QPSQL specific test");
     CHECK_DATABASE(db);
 
     QSqlQuery query(db);
@@ -2216,7 +2045,7 @@ void tst_QSqlDatabase::eventNotificationPSQL()
     QString payload = "payload";
     QSqlDriver *driver = db.driver();
     QVERIFY_SQL(*driver, subscribeToNotification(procedureName));
-    QSignalSpy spy(driver, QOverload<const QString &, QSqlDriver::NotificationSource, const QVariant &>::of(&QSqlDriver::notification));
+    QSignalSpy spy(driver, &QSqlDriver::notification);
     query.exec(QString("NOTIFY \"%1\", '%2'").arg(procedureName).arg(payload));
     QTRY_COMPARE(spy.size(), 1);
     QList<QVariant> arguments = spy.takeFirst();
@@ -2230,25 +2059,22 @@ void tst_QSqlDatabase::eventNotificationSQLite()
 {
     QFETCH(QString, dbName);
     QSqlDatabase db = QSqlDatabase::database(dbName);
-    if (db.driverName().compare(QLatin1String("QSQLITE"), Qt::CaseInsensitive))
-        QSKIP("QSQLITE specific test");
     CHECK_DATABASE(db);
 
-    const QString tableName(qTableName("sqlitnotifytest", __FILE__, db));
-    const auto noEscapeTableName(qTableName("sqlitnotifytest", __FILE__, db, false));
-    tst_Databases::safeDropTable(db, tableName);
+    TableScope ts(db, "sqlitnotifytest", __FILE__);
+    TableScope tsEscape(db, "sqlitnotifytest", __FILE__, false);
 
     QSqlDriver *driver = db.driver();
-    QSignalSpy spy(driver, QOverload<const QString &, QSqlDriver::NotificationSource, const QVariant &>::of(&QSqlDriver::notification));
+    QSignalSpy spy(driver, &QSqlDriver::notification);
     QSqlQuery q(db);
-    QVERIFY_SQL(q, exec("CREATE TABLE " + tableName + " (id INTEGER, realVal REAL)"));
-    driver->subscribeToNotification(noEscapeTableName);
-    QVERIFY_SQL(q, exec("INSERT INTO " + tableName + " (id, realVal) VALUES (1, 2.3)"));
+    QVERIFY_SQL(q, exec("CREATE TABLE " + ts.tableName() + " (id INTEGER, realVal REAL)"));
+    driver->subscribeToNotification(tsEscape.tableName());
+    QVERIFY_SQL(q, exec("INSERT INTO " + ts.tableName() + " (id, realVal) VALUES (1, 2.3)"));
     QTRY_COMPARE(spy.size(), 1);
     QList<QVariant> arguments = spy.takeFirst();
-    QCOMPARE(arguments.at(0).toString(), noEscapeTableName);
-    driver->unsubscribeFromNotification(noEscapeTableName);
-    QVERIFY_SQL(q, exec("INSERT INTO " + tableName + " (id, realVal) VALUES (1, 2.3)"));
+    QCOMPARE(arguments.at(0).toString(), tsEscape.tableName());
+    driver->unsubscribeFromNotification(tsEscape.tableName());
+    QVERIFY_SQL(q, exec("INSERT INTO " + ts.tableName() + " (id, realVal) VALUES (1, 2.3)"));
     QTRY_COMPARE(spy.size(), 0);
 }
 
@@ -2257,16 +2083,13 @@ void tst_QSqlDatabase::sqlite_bindAndFetchUInt()
     QFETCH(QString, dbName);
     QSqlDatabase db = QSqlDatabase::database(dbName);
     CHECK_DATABASE(db);
-    if (db.driverName().startsWith("QSQLITE2"))
-        QSKIP("SQLite3 specific test");
-
+    TableScope ts(db, "uint_test", __FILE__);
     QSqlQuery q(db);
-    const QString tableName(qTableName("uint_test", __FILE__, db));
-    QVERIFY_SQL(q, exec(QString("CREATE TABLE %1(uint_field UNSIGNED INTEGER)").arg(tableName)));
-    QVERIFY_SQL(q, prepare(QString("INSERT INTO %1 VALUES(?)").arg(tableName)));
+    QVERIFY_SQL(q, exec(QString("CREATE TABLE %1(uint_field UNSIGNED INTEGER)").arg(ts.tableName())));
+    QVERIFY_SQL(q, prepare(QString("INSERT INTO %1 VALUES(?)").arg(ts.tableName())));
     q.addBindValue(4000000000U);
     QVERIFY_SQL(q, exec());
-    QVERIFY_SQL(q, exec(QString("SELECT uint_field FROM %1").arg(tableName)));
+    QVERIFY_SQL(q, exec(QString("SELECT uint_field FROM %1").arg(ts.tableName())));
     QVERIFY_SQL(q, next());
 
     // All integers in SQLite are signed, so even though we bound the value
@@ -2373,24 +2196,21 @@ void tst_QSqlDatabase::sqlite_enableRegexp()
     QFETCH(QString, dbName);
     QSqlDatabase db = QSqlDatabase::database(dbName);
     CHECK_DATABASE(db);
-    if (db.driverName().startsWith("QSQLITE2"))
-        QSKIP("SQLite3 specific test");
-
     db.close();
     db.setConnectOptions("QSQLITE_ENABLE_REGEXP");
     QVERIFY_SQL(db, open());
+    TableScope ts(db, "regexp_test", __FILE__);
 
     QSqlQuery q(db);
-    const QString tableName(qTableName("regexp_test", __FILE__, db));
-    QVERIFY_SQL(q, exec(QString("CREATE TABLE %1(text TEXT)").arg(tableName)));
-    QVERIFY_SQL(q, prepare(QString("INSERT INTO %1 VALUES(?)").arg(tableName)));
+    QVERIFY_SQL(q, exec(QString("CREATE TABLE %1(text TEXT)").arg(ts.tableName())));
+    QVERIFY_SQL(q, prepare(QString("INSERT INTO %1 VALUES(?)").arg(ts.tableName())));
     q.addBindValue("a0");
     QVERIFY_SQL(q, exec());
     q.addBindValue("a1");
     QVERIFY_SQL(q, exec());
 
     QVERIFY_SQL(q, exec(QString("SELECT text FROM %1 WHERE text REGEXP 'a[^0]' "
-                                "ORDER BY text").arg(tableName)));
+                                "ORDER BY text").arg(ts.tableName())));
     QVERIFY_SQL(q, next());
     QCOMPARE(q.value(0).toString(), QString("a1"));
     QFAIL_SQL(q, next());
@@ -2423,13 +2243,12 @@ void tst_QSqlDatabase::sqlite_check_json1()
 
     QSqlQuery q(db);
     const QString json1("{\"id\":1}");
-    const QString tableName(qTableName("sqlite_check_json1", __FILE__, db));
-    tst_Databases::safeDropTable(db, tableName);
-    QVERIFY_SQL(q, exec(QString("CREATE TABLE %1(text TEXT)").arg(tableName)));
-    QVERIFY_SQL(q, exec(QString("INSERT INTO %1 VALUES(json('%2'))").arg(tableName, json1)));
-    QVERIFY_SQL(q, prepare(QString("INSERT INTO %1 VALUES(?)").arg(tableName)));
+    TableScope ts(db, "sqlite_check_json1", __FILE__);
+    QVERIFY_SQL(q, exec(QString("CREATE TABLE %1(text TEXT)").arg(ts.tableName())));
+    QVERIFY_SQL(q, exec(QString("INSERT INTO %1 VALUES(json('%2'))").arg(ts.tableName(), json1)));
+    QVERIFY_SQL(q, prepare(QString("INSERT INTO %1 VALUES(?)").arg(ts.tableName())));
     q.addBindValue("json('{\"id\":2}')");
-    QVERIFY_SQL(q, prepare(QString("SELECT * from %1 WHERE text = json('%2')").arg(tableName, json1)));
+    QVERIFY_SQL(q, prepare(QString("SELECT * from %1 WHERE text = json('%2')").arg(ts.tableName(), json1)));
     QVERIFY_SQL(q, exec());
     QVERIFY_SQL(q, next());
     QCOMPARE(q.value(0).toString(), json1);
@@ -2441,6 +2260,10 @@ void tst_QSqlDatabase::cloneDatabase()
     QFETCH(QString, dbName);
     QSqlDatabase db = QSqlDatabase::database(dbName);
     CHECK_DATABASE(db);
+    const auto wrapup = qScopeGuard([&]() {
+        QSqlDatabase::removeDatabase("clonedDatabase");
+        QSqlDatabase::removeDatabase("clonedDatabaseCopy");
+    });
     {
         QSqlDatabase clonedDatabase = QSqlDatabase::cloneDatabase(db, "clonedDatabase");
         QCOMPARE(clonedDatabase.databaseName(), db.databaseName());
@@ -2482,6 +2305,7 @@ public slots:
         QSqlDatabase invalidDb = QSqlDatabase::database("invalid");
         QVERIFY(!invalidDb.isValid());
 
+        const auto wrapup = qScopeGuard([&]() { QSqlDatabase::removeDatabase("CloneDB"); });
         {
             QSqlDatabase clonedDatabase = QSqlDatabase::cloneDatabase(dbName, "CloneDB");
             QVERIFY(!clonedDatabase.isOpen());
diff --git a/tests/auto/sql/kernel/qsqldriver/tst_qsqldriver.cpp b/tests/auto/sql/kernel/qsqldriver/tst_qsqldriver.cpp
index e2877a11..c95d8533 100644
--- a/tests/auto/sql/kernel/qsqldriver/tst_qsqldriver.cpp
+++ b/tests/auto/sql/kernel/qsqldriver/tst_qsqldriver.cpp
@@ -52,47 +52,48 @@ void tst_QSqlDriver::initTestCase_data()
 void tst_QSqlDriver::recreateTestTables(QSqlDatabase db)
 {
     QSqlQuery q(db);
-    const QString relTEST1(qTableName("relTEST1", __FILE__, db));
+    const QString tableName(qTableName("relTEST1", __FILE__, db));
+    tst_Databases::safeDropTables(db, {tableName});
 
     QSqlDriver::DbmsType dbType = tst_Databases::getDatabaseType(db);
     if (dbType == QSqlDriver::PostgreSQL)
         QVERIFY_SQL( q, exec("set client_min_messages='warning'"));
 
-    tst_Databases::safeDropTable( db, relTEST1 );
     QString doubleField;
     if (dbType == QSqlDriver::SQLite)
         doubleField = "more_data double";
     else if (dbType == QSqlDriver::Oracle)
         doubleField = "more_data number(8,7)";
-    else if (dbType == QSqlDriver::PostgreSQL)
+    else if (dbType == QSqlDriver::PostgreSQL || dbType == QSqlDriver::MimerSQL)
         doubleField = "more_data double precision";
     else if (dbType == QSqlDriver::Interbase)
         doubleField = "more_data numeric(8,7)";
     else
         doubleField = "more_data double(8,7)";
     const QString defValue(driverSupportsDefaultValues(dbType) ? QStringLiteral("DEFAULT 'defaultVal'") : QString());
-    QVERIFY_SQL( q, exec("create table " + relTEST1 +
+    QVERIFY_SQL( q, exec("create table " + tableName +
             " (id int not null primary key, name varchar(20) " + defValue + ", title_key int, another_title_key int, " + doubleField + QLatin1Char(')')));
-    QVERIFY_SQL( q, exec("insert into " + relTEST1 + " values(1, 'harry', 1, 2, 1.234567)"));
-    QVERIFY_SQL( q, exec("insert into " + relTEST1 + " values(2, 'trond', 2, 1, 8.901234)"));
-    QVERIFY_SQL( q, exec("insert into " + relTEST1 + " values(3, 'vohi', 1, 2, 5.678901)"));
-    QVERIFY_SQL( q, exec("insert into " + relTEST1 + " values(4, 'boris', 2, 2, 2.345678)"));
+    QVERIFY_SQL( q, exec("insert into " + tableName + " values(1, 'harry', 1, 2, 1.234567)"));
+    QVERIFY_SQL( q, exec("insert into " + tableName + " values(2, 'trond', 2, 1, 8.901234)"));
+    QVERIFY_SQL( q, exec("insert into " + tableName + " values(3, 'vohi', 1, 2, 5.678901)"));
+    QVERIFY_SQL( q, exec("insert into " + tableName + " values(4, 'boris', 2, 2, 2.345678)"));
 }
 
 void tst_QSqlDriver::initTestCase()
 {
-    foreach (const QString &dbname, dbs.dbNames)
+    for (const QString &dbname : std::as_const(dbs.dbNames))
         recreateTestTables(QSqlDatabase::database(dbname));
 }
 
 void tst_QSqlDriver::cleanupTestCase()
 {
-    foreach (const QString &dbName, dbs.dbNames) {
+    for (const QString &dbName : std::as_const(dbs.dbNames)) {
         QSqlDatabase db = QSqlDatabase::database(dbName);
-        tst_Databases::safeDropTable(db, qTableName("relTEST1", __FILE__, db));
+        QStringList tables = {qTableName("relTEST1", __FILE__, db)};
         const QSqlDriver::DbmsType dbType = tst_Databases::getDatabaseType(db);
         if (dbType == QSqlDriver::Oracle)
-            tst_Databases::safeDropTable(db, qTableName("clobTable", __FILE__, db));
+            tables.push_back(qTableName("clobTable", __FILE__, db));
+        tst_Databases::safeDropTables(db, tables);
     }
     dbs.close();
 }
@@ -111,7 +112,7 @@ void tst_QSqlDriver::record()
     QSqlDatabase db = QSqlDatabase::database(dbName);
     CHECK_DATABASE(db);
 
-    QString tablename(qTableName("relTEST1", __FILE__, db));
+    QString tablename(qTableName("relTEST1", __FILE__, db, false));
     QStringList fields;
     fields << "id" << "name" << "title_key" << "another_title_key" << "more_data";
 
@@ -155,8 +156,9 @@ void tst_QSqlDriver::record()
 
     //check that we can't get records using incorrect tablename casing that's been quoted
     rec = db.driver()->record(db.driver()->escapeIdentifier(tablename,QSqlDriver::TableName));
-    if (dbType == QSqlDriver::MySqlServer || dbType == QSqlDriver::SQLite || dbType == QSqlDriver::Sybase
-      || dbType == QSqlDriver::MSSqlServer || tst_Databases::isMSAccess(db))
+    if (dbType == QSqlDriver::MySqlServer || dbType == QSqlDriver::SQLite
+        || dbType == QSqlDriver::Sybase || dbType == QSqlDriver::MSSqlServer
+        || tst_Databases::isMSAccess(db) || dbType == QSqlDriver::MimerSQL)
         QCOMPARE(rec.count(), 5); //mysql, sqlite and tds will match
     else
         QCOMPARE(rec.count(), 0);
@@ -169,7 +171,7 @@ void tst_QSqlDriver::primaryIndex()
     QSqlDatabase db = QSqlDatabase::database(dbName);
     CHECK_DATABASE(db);
 
-    QString tablename(qTableName("relTEST1", __FILE__, db));
+    QString tablename(qTableName("relTEST1", __FILE__, db, false));
     //check that we can get primary index using unquoted mixed case table name
     QSqlIndex index = db.driver()->primaryIndex(tablename);
     QCOMPARE(index.count(), 1);
@@ -205,22 +207,23 @@ void tst_QSqlDriver::primaryIndex()
         tablename = tablename.toUpper();
 
     index = db.driver()->primaryIndex(db.driver()->escapeIdentifier(tablename, QSqlDriver::TableName));
-    if (dbType == QSqlDriver::MySqlServer || dbType == QSqlDriver::SQLite || dbType == QSqlDriver::Sybase
-      || dbType == QSqlDriver::MSSqlServer || tst_Databases::isMSAccess(db))
+    if (dbType == QSqlDriver::MySqlServer || dbType == QSqlDriver::SQLite
+        || dbType == QSqlDriver::Sybase || dbType == QSqlDriver::MSSqlServer
+        || tst_Databases::isMSAccess(db) || dbType == QSqlDriver::MimerSQL)
         QCOMPARE(index.count(), 1); //mysql will always find the table name regardless of casing
     else
         QCOMPARE(index.count(), 0);
 
     // Test getting a primary index for a table with a clob in it - QTBUG-64427
     if (dbType == QSqlDriver::Oracle) {
-        const QString clobTable(qTableName("clobTable", __FILE__, db));
+        TableScope ts(db, "clobTable", __FILE__);
         QSqlQuery qry(db);
-        QVERIFY_SQL(qry, exec("CREATE TABLE " + clobTable + " (id INTEGER, clobField CLOB)"));
-        QVERIFY_SQL(qry, exec("CREATE UNIQUE INDEX " + clobTable + "IDX ON " + clobTable + " (id)"));
-        QVERIFY_SQL(qry, exec("ALTER TABLE " + clobTable + " ADD CONSTRAINT " + clobTable +
+        QVERIFY_SQL(qry, exec("CREATE TABLE " + ts.tableName() + " (id INTEGER, clobField CLOB)"));
+        QVERIFY_SQL(qry, exec("CREATE UNIQUE INDEX " + ts.tableName() + "IDX ON " + ts.tableName() + " (id)"));
+        QVERIFY_SQL(qry, exec("ALTER TABLE " + ts.tableName() + " ADD CONSTRAINT " + ts.tableName() +
                               "PK PRIMARY KEY(id)"));
-        QVERIFY_SQL(qry, exec("ALTER TABLE " + clobTable + " MODIFY (id NOT NULL ENABLE)"));
-        const QSqlIndex primaryIndex = db.driver()->primaryIndex(clobTable);
+        QVERIFY_SQL(qry, exec("ALTER TABLE " + ts.tableName() + " MODIFY (id NOT NULL ENABLE)"));
+        const QSqlIndex primaryIndex = db.driver()->primaryIndex(ts.tableName());
         QCOMPARE(primaryIndex.count(), 1);
         QCOMPARE(primaryIndex.fieldName(0), QStringLiteral("ID"));
     }
diff --git a/tests/auto/sql/kernel/qsqlerror/tst_qsqlerror.cpp b/tests/auto/sql/kernel/qsqlerror/tst_qsqlerror.cpp
index c83867fc..ddd4e2cd 100644
--- a/tests/auto/sql/kernel/qsqlerror/tst_qsqlerror.cpp
+++ b/tests/auto/sql/kernel/qsqlerror/tst_qsqlerror.cpp
@@ -108,12 +108,16 @@ void tst_QSqlError::moveOperator()
 
 void tst_QSqlError::operators()
 {
-   QSqlError error1(QString(), QString(), QSqlError::NoError);
-   QSqlError error2(QString(), QString(), QSqlError::NoError);
-   QSqlError error3(QString(), QString(), QSqlError::UnknownError);
+   QSqlError error1(QStringLiteral("a"), QStringLiteral("b"), QSqlError::NoError, QStringLiteral("ec1"));
+   QSqlError error2(QStringLiteral("c"), QStringLiteral("d"), QSqlError::NoError, QStringLiteral("ec1"));
+   QSqlError error3(QString(), QString(), QSqlError::UnknownError, QStringLiteral("ec1"));
+   QSqlError error4(QString(), QString(), QSqlError::NoError, QStringLiteral("ec2"));
+   QSqlError error5(QString(), QString(), QSqlError::UnknownError, QStringLiteral("ec2"));
 
    QCOMPARE(error1, error2);
    QVERIFY(error1 != error3);
+   QVERIFY(error1 != error4);
+   QVERIFY(error4 != error5);
 }
 
 void tst_QSqlError::qtbug_74575()
diff --git a/tests/auto/sql/kernel/qsqlfield/tst_qsqlfield.cpp b/tests/auto/sql/kernel/qsqlfield/tst_qsqlfield.cpp
index 79c77463..384aa7e7 100644
--- a/tests/auto/sql/kernel/qsqlfield/tst_qsqlfield.cpp
+++ b/tests/auto/sql/kernel/qsqlfield/tst_qsqlfield.cpp
@@ -39,6 +39,7 @@ private slots:
     void clear();
     void setTableName_data();
     void setTableName();
+    void moveSemantics();
 };
 
 // Testing get/set functions
@@ -344,5 +345,24 @@ void tst_QSqlField::setTableName()
     QCOMPARE(field.tableName(), tableName);
 }
 
+void tst_QSqlField::moveSemantics()
+{
+    QSqlField field("test", QMetaType(QMetaType::QString), "testTable");
+    QSqlField empty;
+    field.setValue("string");
+    auto moved = std::move(field);
+    // `field` is now partially-formed
+
+    // moving transfers state:
+    QCOMPARE(moved.value().toString(), QLatin1String("string"));
+
+    // moved-from objects can be assigned-to:
+    field = empty;
+    QVERIFY(field.value().isNull());
+
+    // moved-from object can be destroyed:
+    moved = std::move(field);
+}
+
 QTEST_MAIN(tst_QSqlField)
 #include "tst_qsqlfield.moc"
diff --git a/tests/auto/sql/kernel/qsqlindex/CMakeLists.txt b/tests/auto/sql/kernel/qsqlindex/CMakeLists.txt
new file mode 100644
index 00000000..6752e976
--- /dev/null
+++ b/tests/auto/sql/kernel/qsqlindex/CMakeLists.txt
@@ -0,0 +1,15 @@
+# Copyright (C) 2023 The Qt Company Ltd.
+# SPDX-License-Identifier: BSD-3-Clause
+
+#####################################################################
+## tst_qsqlindex Test:
+#####################################################################
+
+qt_internal_add_test(tst_qsqlindex
+    SOURCES
+        tst_qsqlindex.cpp
+    LIBRARIES
+        Qt::CorePrivate
+        Qt::Sql
+        Qt::SqlPrivate
+)
diff --git a/tests/auto/sql/kernel/qsqlindex/tst_qsqlindex.cpp b/tests/auto/sql/kernel/qsqlindex/tst_qsqlindex.cpp
new file mode 100644
index 00000000..3c3604f5
--- /dev/null
+++ b/tests/auto/sql/kernel/qsqlindex/tst_qsqlindex.cpp
@@ -0,0 +1,126 @@
+// Copyright (C) 2023 The Qt Company Ltd.
+// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only WITH Qt-GPL-exception-1.0
+
+#include <QTest>
+#include <QtSql/QtSql>
+
+#include <QtCore/QDateTime>
+#include <QtCore/QTimeZone>
+
+#include <numeric>
+
+#include "../qsqldatabase/tst_databases.h"
+
+using namespace Qt::StringLiterals;
+
+QString qtest;
+
+class tst_QSqlIndex : public QObject
+{
+    Q_OBJECT
+
+public:
+    tst_QSqlIndex();
+
+private slots:
+    void construction_data();
+    void construction();
+    void assignment_data();
+    void assignment();
+    void basicFunctions();
+};
+
+tst_QSqlIndex::tst_QSqlIndex()
+{
+}
+
+void tst_QSqlIndex::construction_data()
+{
+    QTest::addColumn<QSqlIndex>("sqlIndex");
+    QTest::addColumn<QString>("cursorName");
+    QTest::addColumn<QString>("name");
+
+    const QString cursorName("cusorName"_L1);
+    const QString name("name"_L1);
+    QSqlIndex sqlIndex(cursorName, name);
+    QTest::newRow("ctor1") << QSqlIndex() << QString() << QString();
+    QTest::newRow("ctor2") << sqlIndex << cursorName << name;
+    QTest::newRow("copy ctor") << QSqlIndex(sqlIndex) << cursorName << name;
+    QTest::newRow("move ctor") << QSqlIndex(std::move(sqlIndex)) << cursorName << name;
+}
+
+void tst_QSqlIndex::construction()
+{
+    QFETCH(QSqlIndex, sqlIndex);
+    QFETCH(QString, cursorName);
+    QFETCH(QString, name);
+
+    QCOMPARE(sqlIndex.cursorName(), cursorName);
+    QCOMPARE(sqlIndex.name(), name);
+    QCOMPARE(sqlIndex.isDescending(0), false);
+    QCOMPARE(sqlIndex.count(), 0);
+}
+
+void tst_QSqlIndex::assignment_data()
+{
+    QTest::addColumn<QSqlIndex>("sqlIndex");
+    QTest::addColumn<QString>("cursorName");
+    QTest::addColumn<QString>("name");
+
+    const QString cursorName("cusorName"_L1);
+    const QString name("name"_L1);
+    QSqlIndex sqlIndex(cursorName, name);
+    QSqlIndex sqlIndex1 = sqlIndex;
+    QSqlIndex sqlIndex2 = std::move(sqlIndex);
+    sqlIndex = std::move(sqlIndex2);
+    QTest::newRow("copy assignment") << sqlIndex1 << cursorName << name;
+    QTest::newRow("move assignment") << sqlIndex << cursorName << name;
+}
+
+void tst_QSqlIndex::assignment()
+{
+    QFETCH(QSqlIndex, sqlIndex);
+    QFETCH(QString, cursorName);
+    QFETCH(QString, name);
+
+    QCOMPARE(sqlIndex.cursorName(), cursorName);
+    QCOMPARE(sqlIndex.name(), name);
+    QCOMPARE(sqlIndex.isDescending(0), false);
+    QCOMPARE(sqlIndex.count(), 0);
+}
+
+void tst_QSqlIndex::basicFunctions()
+{
+    QSqlIndex sqlIndex("cursorName"_L1, "name"_L1);
+    const QSqlField f1("field1"_L1, QMetaType(QMetaType::UInt), "table1"_L1);
+    const QSqlField f2("field2"_L1, QMetaType(QMetaType::Double), "table2"_L1);
+
+    QCOMPARE(sqlIndex.cursorName(), "cursorName"_L1);
+    sqlIndex.setCursorName("updatedCursorName"_L1);
+    QCOMPARE(sqlIndex.name(), "name"_L1);
+    sqlIndex.setName("updatedName"_L1);
+    QCOMPARE(sqlIndex.cursorName(), "updatedCursorName"_L1);
+    QCOMPARE(sqlIndex.name(), "updatedName"_L1);
+
+    sqlIndex.append(f1);
+    QCOMPARE(sqlIndex.count(), 1);
+    QCOMPARE(sqlIndex.isDescending(0), false);
+
+    sqlIndex.append(f2, true);
+    QCOMPARE(sqlIndex.count(), 2);
+    QCOMPARE(sqlIndex.isDescending(0), false);
+    QCOMPARE(sqlIndex.isDescending(1), true);
+
+    sqlIndex.setDescending(0, true);
+    sqlIndex.setDescending(1, false);
+    sqlIndex.setDescending(2, true);
+    QCOMPARE(sqlIndex.count(), 2);
+    QCOMPARE(sqlIndex.isDescending(0), true);
+    QCOMPARE(sqlIndex.isDescending(1), false);
+
+    QCOMPARE(sqlIndex.field(0), f1);
+    QCOMPARE(sqlIndex.field(1), f2);
+}
+
+QTEST_MAIN(tst_QSqlIndex)
+#include "tst_qsqlindex.moc"
diff --git a/tests/auto/sql/kernel/qsqlquery/tst_qsqlquery.cpp b/tests/auto/sql/kernel/qsqlquery/tst_qsqlquery.cpp
index e8735e77..7ab17802 100644
--- a/tests/auto/sql/kernel/qsqlquery/tst_qsqlquery.cpp
+++ b/tests/auto/sql/kernel/qsqlquery/tst_qsqlquery.cpp
@@ -58,8 +58,6 @@ private slots:
     void last();
     void seek_data() { generic_data(); }
     void seek();
-    void transaction_data() { generic_data(); }
-    void transaction();
     void record_data() { generic_data(); }
     void record();
     void record_sqlite_data() { generic_data("QSQLITE"); }
@@ -80,8 +78,6 @@ private slots:
     void psql_forwardOnlyQueryResultsLost();
 
     // Bug-specific tests:
-    void tds_bitField_data() { generic_data("QTDS"); }
-    void tds_bitField();
     void oci_nullBlob_data() { generic_data("QOCI"); }
     void oci_nullBlob();
     void blob_data() { generic_data(); }
@@ -174,11 +170,11 @@ private slots:
     void task_250026();
     void crashQueryOnCloseDatabase();
 
-    void task_233829_data() { generic_data("QPSQL"); }
-    void task_233829();
+    void testNaN_data() { generic_data("QPSQL"); }
+    void testNaN();
 
-    void QTBUG_12477_data() { generic_data("QPSQL"); }
-    void QTBUG_12477();
+    void psqlNumericMetadata_data() { generic_data("QPSQL"); }
+    void psqlNumericMetadata();
 
     void sqlServerReturn0_data() { generic_data(); }
     void sqlServerReturn0();
@@ -244,12 +240,20 @@ private slots:
     void QTBUG_73286_data() { generic_data("QODBC"); }
     void QTBUG_73286();
 
+    void insertVarChar1_data() { generic_data("QODBC"); }
+    void insertVarChar1();
+
     void dateTime_data();
     void dateTime();
 
     void ibaseArray_data() { generic_data("QIBASE"); }
     void ibaseArray();
 
+    void ibaseDateTimeWithTZ_data();
+    void ibaseDateTimeWithTZ();
+    void ibaseTimeStampTzArray_data() { generic_data("QIBASE"); }
+    void ibaseTimeStampTzArray();
+
     // Double addDatabase() with same name leaves system in a state that breaks
     // invalidQuery() if run later; so put this one last !
     void prematureExec_data() { generic_data(); }
@@ -336,55 +340,8 @@ void tst_QSqlQuery::dropTestTables(QSqlDatabase db)
     // Drop all the table in case a testcase failed:
     tablenames <<  qtest
                << qTableName("qtest_null", __FILE__, db)
-               << qTableName("qtest_writenull", __FILE__, db)
-               << qTableName("qtest_blob", __FILE__, db)
-               << qTableName("qtest_bittest", __FILE__, db)
-               << qTableName("qtest_nullblob", __FILE__, db)
-               << qTableName("qtest_rawtest", __FILE__, db)
-               << qTableName("qtest_precision", __FILE__, db)
-               << qTableName("qtest_prepare", __FILE__, db)
-               << qTableName("qtestj1", __FILE__, db)
-               << qTableName("qtestj2", __FILE__, db)
-               << qTableName("char1Select", __FILE__, db)
-               << qTableName("char1SU", __FILE__, db)
-               << qTableName("qxmltest", __FILE__, db)
-               << qTableName("qtest_exerr", __FILE__, db)
-               << qTableName("qtest_empty", __FILE__, db)
-               << qTableName("clobby", __FILE__, db)
-               << qTableName("bindtest", __FILE__, db)
-               << qTableName("more_results", __FILE__, db)
-               << qTableName("blobstest", __FILE__, db)
-               << qTableName("oraRowId", __FILE__, db)
-               << qTableName("bug43874", __FILE__, db)
-               << qTableName("bug6421", __FILE__, db).toUpper()
-               << qTableName("bug5765", __FILE__, db)
-               << qTableName("bug6852", __FILE__, db)
-               << qTableName("bug21884", __FILE__, db)
-               << qTableName("bug23895", __FILE__, db)
-               << qTableName("qtest_lockedtable", __FILE__, db)
-               << qTableName("Planet", __FILE__, db)
-               << qTableName("task_250026", __FILE__, db)
-               << qTableName("task_234422", __FILE__, db)
-               << qTableName("test141895", __FILE__, db)
-               << qTableName("qtest_oraOCINumber", __FILE__, db)
-               << qTableName("bug2192", __FILE__, db)
                << qTableName("tst_record", __FILE__, db);
 
-    if (dbType == QSqlDriver::PostgreSQL)
-        tablenames << qTableName("task_233829", __FILE__, db);
-
-    if (dbType == QSqlDriver::SQLite)
-        tablenames << qTableName("record_sqlite", __FILE__, db);
-
-    if (dbType == QSqlDriver::MSSqlServer || dbType == QSqlDriver::Oracle)
-        tablenames << qTableName("qtest_longstr", __FILE__, db);
-
-    if (dbType == QSqlDriver::MSSqlServer)
-        db.exec("DROP PROCEDURE " + qTableName("test141895_proc", __FILE__, db));
-
-    if (dbType == QSqlDriver::MySqlServer)
-        db.exec("DROP PROCEDURE IF EXISTS " + qTableName("bug6852_proc", __FILE__, db));
-
     tst_Databases::safeDropTables(db, tablenames);
 
     if (dbType == QSqlDriver::Oracle) {
@@ -452,12 +409,11 @@ void tst_QSqlQuery::char1Select()
     CHECK_DATABASE(db);
 
     {
+        TableScope ts(db, "char1Select", __FILE__);
         QSqlQuery q(db);
-        const QString tbl = qTableName("char1Select", __FILE__, db);
-        q.exec("drop table " + tbl);
-        QVERIFY_SQL(q, exec(QLatin1String("create table %1 (id char(1))").arg(tbl)));
-        QVERIFY_SQL(q, exec(QLatin1String("insert into %1 values ('a')").arg(tbl)));
-        QVERIFY_SQL(q, exec("select * from " + tbl));
+        QVERIFY_SQL(q, exec(QLatin1String("create table %1 (id char(1))").arg(ts.tableName())));
+        QVERIFY_SQL(q, exec(QLatin1String("insert into %1 values ('a')").arg(ts.tableName())));
+        QVERIFY_SQL(q, exec("select * from " + ts.tableName()));
         QVERIFY(q.next());
         if (tst_Databases::getDatabaseType(db) == QSqlDriver::Interbase)
             QCOMPARE(q.value(0).toString().left(1), u"a");
@@ -481,11 +437,12 @@ void tst_QSqlQuery::char1SelectUnicode()
         QSKIP("Database not unicode capable");
 
     QString uniStr(QChar(0x0915)); // DEVANAGARI LETTER KA
+    TableScope ts(db, "char1SU", __FILE__);
     QSqlQuery q(db);
     QLatin1String createQuery;
-    const QString char1SelectUnicode(qTableName("char1SU", __FILE__, db));
 
     switch (dbType) {
+    case QSqlDriver::MimerSQL:
     case QSqlDriver::MSSqlServer:
         createQuery = QLatin1String("create table %1(id nchar(1))");
         break;
@@ -505,12 +462,12 @@ void tst_QSqlQuery::char1SelectUnicode()
         break;
     }
 
-    QVERIFY_SQL(q, exec(createQuery.arg(char1SelectUnicode)));
-    QVERIFY_SQL(q, prepare(QLatin1String("insert into %1 values(?)").arg(char1SelectUnicode)));
+    QVERIFY_SQL(q, exec(createQuery.arg(ts.tableName())));
+    QVERIFY_SQL(q, prepare(QLatin1String("insert into %1 values(?)").arg(ts.tableName())));
 
     q.bindValue(0, uniStr);
     QVERIFY_SQL(q, exec());
-    QVERIFY_SQL(q, exec("select * from " + char1SelectUnicode));
+    QVERIFY_SQL(q, exec("select * from " + ts.tableName()));
 
     QVERIFY(q.next());
     if (!q.value(0).toString().isEmpty())
@@ -525,7 +482,8 @@ void tst_QSqlQuery::oraRowId()
     QFETCH(QString, dbName);
     QSqlDatabase db = QSqlDatabase::database(dbName);
     CHECK_DATABASE(db);
-    const QString oraRowId(qTableName("oraRowId", __FILE__, db));
+    TableScope ts(db, "oraRowId", __FILE__);
+    const auto &oraRowId = ts.tableName();
 
     QSqlQuery q(db);
     QVERIFY_SQL(q, exec("select rowid from " + qtest));
@@ -561,7 +519,7 @@ void tst_QSqlQuery::mysql_outValues()
     QSqlDatabase db = QSqlDatabase::database(dbName);
     CHECK_DATABASE(db);
     const QString hello(qTableName("hello", __FILE__, db));
-    const QString qtestproc(qTableName("qtestproc", __FILE__, db));
+    ProcScope ps(db, "qtestproc", __FILE__);
 
     QSqlQuery q(db);
 
@@ -583,25 +541,22 @@ void tst_QSqlQuery::mysql_outValues()
     QCOMPARE(q.value(0).toString(), u"Hello harald");
 
     QVERIFY_SQL(q, exec("drop function " + hello));
-    q.exec("drop procedure " + qtestproc);
 
     QVERIFY_SQL(q, exec(QLatin1String("create procedure %1 () BEGIN "
-                                      "select * from %2 order by id; END").arg(qtestproc, qtest)));
-    QVERIFY_SQL(q, exec(QLatin1String("call %1()").arg(qtestproc)));
+                                      "select * from %2 order by id; END").arg(ps.name(), qtest)));
+    QVERIFY_SQL(q, exec(QLatin1String("call %1()").arg(ps.name())));
     QVERIFY_SQL(q, next());
     QCOMPARE(q.value(1).toString(), u"VarChar1");
 
-    QVERIFY_SQL(q, exec("drop procedure " + qtestproc));
+    QVERIFY_SQL(q, exec("drop procedure " + ps.name()));
     QVERIFY_SQL(q, exec(QLatin1String("create procedure %1 (OUT param1 INT) "
-                                      "BEGIN set param1 = 42; END").arg(qtestproc)));
+                                      "BEGIN set param1 = 42; END").arg(ps.name())));
 
-    QVERIFY_SQL(q, exec(QLatin1String("call %1 (@out)").arg(qtestproc)));
+    QVERIFY_SQL(q, exec(QLatin1String("call %1 (@out)").arg(ps.name())));
     QVERIFY_SQL(q, exec("select @out"));
     QCOMPARE(q.record().fieldName(0), u"@out");
     QVERIFY_SQL(q, next());
     QCOMPARE(q.value(0).toInt(), 42);
-
-    QVERIFY_SQL(q, exec("drop procedure " + qtestproc));
 }
 
 void tst_QSqlQuery::bindBool()
@@ -784,7 +739,8 @@ void tst_QSqlQuery::oraClob()
     QFETCH(QString, dbName);
     QSqlDatabase db = QSqlDatabase::database(dbName);
     CHECK_DATABASE(db);
-    const QString clobby(qTableName("clobby", __FILE__, db));
+    TableScope ts(db, "clobby", __FILE__);
+    const auto &clobby = ts.tableName();
 
     QSqlQuery q(db);
 
@@ -860,19 +816,15 @@ void tst_QSqlQuery::storedProceduresIBase()
     QFETCH(QString, dbName);
     QSqlDatabase db = QSqlDatabase::database(dbName);
     CHECK_DATABASE(db);
+    ProcScope ps(db, "TESTPROC", __FILE__);
 
     QSqlQuery q(db);
-    const auto procName = qTableName("TESTPROC", __FILE__, db);
-    q.exec("drop procedure " + procName);
-
     QVERIFY_SQL(q, exec(QLatin1String("create procedure %1 RETURNS (x integer, y varchar(20)) "
                                       "AS BEGIN "
                                       "  x = 42; "
                                       "  y = 'Hello Anders'; "
-                                      "END").arg(procName)));
-    const auto tidier = qScopeGuard([&]() { q.exec("drop procedure " + procName); });
-
-    QVERIFY_SQL(q, prepare("execute procedure " + procName));
+                                      "END").arg(ps.name())));
+    QVERIFY_SQL(q, prepare("execute procedure " + ps.name()));
     QVERIFY_SQL(q, exec());
 
     // Check for a valid result set:
@@ -899,12 +851,11 @@ void tst_QSqlQuery::outValuesDB2()
     if (!db.driver()->hasFeature(QSqlDriver::PreparedQueries))
         QSKIP("Test requires prepared query support");
 
-    QSqlQuery q(db);
+    ProcScope ps(db, "tst_outValues", __FILE__);
 
+    QSqlQuery q(db);
     q.setForwardOnly(true);
 
-    const QString procName = qTableName("tst_outValues", __FILE__, db);
-    q.exec("drop procedure " + procName); // non-fatal
     QVERIFY_SQL(q, exec(QLatin1String("CREATE PROCEDURE %1 "
                                       "(OUT x int, OUT x2 double, OUT x3 char(20))\n"
                                       "LANGUAGE SQL\n"
@@ -912,9 +863,9 @@ void tst_QSqlQuery::outValuesDB2()
                                       " SET x = 42;\n"
                                       " SET x2 = 4.2;\n"
                                       " SET x3 = 'Homer';\n"
-                                      "END P1").arg(procName)));
+                                      "END P1").arg(ps.name())));
 
-    QVERIFY_SQL(q, prepare(QLatin1String("call %1(?, ?, ?)").arg(procName)));
+    QVERIFY_SQL(q, prepare(QLatin1String("call %1(?, ?, ?)").arg(ps.name())));
 
     q.addBindValue(0, QSql::Out);
     q.addBindValue(0.0, QSql::Out);
@@ -932,11 +883,11 @@ void tst_QSqlQuery::outValues()
     QFETCH(QString, dbName);
     QSqlDatabase db = QSqlDatabase::database(dbName);
     CHECK_DATABASE(db);
-    const QString tst_outValues(qTableName("tst_outValues", __FILE__, db));
 
     if (!db.driver()->hasFeature(QSqlDriver::PreparedQueries))
         QSKIP("Test requires prepared query support");
 
+    ProcScope ps(db, "tst_outValues", __FILE__);
     QSqlQuery q(db);
 
     q.setForwardOnly(true);
@@ -950,7 +901,6 @@ void tst_QSqlQuery::outValues()
         caller = QLatin1String("call %1(?)");
         break;
     case QSqlDriver::DB2:
-        q.exec("drop procedure " + tst_outValues); // non-fatal
         creator = QLatin1String("CREATE PROCEDURE %1 (OUT x int)\n"
                                 "LANGUAGE SQL\n"
                                 "P1: BEGIN\n"
@@ -959,7 +909,6 @@ void tst_QSqlQuery::outValues()
         caller = QLatin1String("call %1(?)");
         break;
     case QSqlDriver::MSSqlServer:
-        q.exec("drop procedure " + tst_outValues);  // non-fatal
         creator = QLatin1String("create procedure %1 (@x int out) as\n"
                                 "begin\n"
                                 "    set @x = 42\n"
@@ -970,8 +919,8 @@ void tst_QSqlQuery::outValues()
         QSKIP("Don't know how to create a stored procedure for this database server, "
               "please fix this test");
     }
-    QVERIFY_SQL(q, exec(creator.arg(tst_outValues)));
-    QVERIFY(q.prepare(caller.arg(tst_outValues)));
+    QVERIFY_SQL(q, exec(creator.arg(ps.name())));
+    QVERIFY(q.prepare(caller.arg(ps.name())));
 
     q.addBindValue(0, QSql::Out);
 
@@ -997,15 +946,15 @@ void tst_QSqlQuery::blob()
     for (int i = 0; i < ba.size(); ++i)
         ba[i] = i % 256;
 
+    TableScope ts(db, "qtest_blob", __FILE__);
     QSqlQuery q(db);
     q.setForwardOnly(true);
-    const QString tableName = qTableName("qtest_blob", __FILE__, db);
 
     QVERIFY_SQL(q, exec(QLatin1String("create table %1 (id int not null primary key, t_blob %2)")
-                        .arg(tableName, tst_Databases::blobTypeName(db, BLOBSIZE))));
+                        .arg(ts.tableName(), tst_Databases::blobTypeName(db, BLOBSIZE))));
 
     QVERIFY_SQL(q, prepare(QLatin1String("insert into %1 (id, t_blob) values (?, ?)")
-                           .arg(tableName)));
+                           .arg(ts.tableName())));
 
     for (int i = 0; i < BLOBCOUNT; ++i) {
         q.addBindValue(i);
@@ -1013,7 +962,7 @@ void tst_QSqlQuery::blob()
         QVERIFY_SQL(q, exec());
     }
 
-    QVERIFY_SQL(q, exec("select * from " + tableName));
+    QVERIFY_SQL(q, exec("select * from " + ts.tableName()));
 
     for (int i = 0; i < BLOBCOUNT; ++i) {
         QVERIFY(q.next());
@@ -1023,10 +972,10 @@ void tst_QSqlQuery::blob()
                                 "array sizes differ, expected (at least) %" PRIdQSIZETYPE
                                 ", got %" PRIdQSIZETYPE, ba.size(), res.size())));
 
-        for (int i2 = 0; i2 < ba.size(); ++i2) {
+        for (qsizetype i2 = 0; i2 < ba.size(); ++i2) {
             if (res[i2] != ba[i2]) {
                 QFAIL(qPrintable(QString::asprintf(
-                                     "ByteArrays differ at position %d, expected %hhu, got %hhu",
+                                     "ByteArrays differ at position %lld, expected %hhu, got %hhu",
                                      i2, ba[i2], res[i2])));
             }
         }
@@ -1113,8 +1062,9 @@ void tst_QSqlQuery::record()
     QCOMPARE(q.record().fieldName(0).toLower(), u"id");
     QCOMPARE(q.value(0).toInt(), 2);
 
-    if (tst_Databases::getDatabaseType(db) == QSqlDriver::Oracle)
-        QSKIP("Getting the tablename is not supported in Oracle");
+    if (tst_Databases::getDatabaseType(db) == QSqlDriver::Oracle
+        || tst_Databases::getDatabaseType(db) == QSqlDriver::MimerSQL)
+        QSKIP("Getting the tablename is not supported in Oracle and Mimer SQL");
 
     const auto lowerQTest = qtest.toLower();
     for (int i = 0; i < 3; ++i)
@@ -1230,12 +1180,8 @@ void tst_QSqlQuery::numRowsAffected()
     QSqlQuery q2(db);
     QVERIFY_SQL(q2, exec(QLatin1String("insert into %1 values (42001, 'homer', 'marge')")
                          .arg(qtest)));
-
-    if (!db.driverName().startsWith("QSQLITE2")) {
-        // SQLite 2.x accumulates changed rows in nested queries. See task 33794
-        QCOMPARE(q2.numRowsAffected(), 1);
-        QCOMPARE(q2.numRowsAffected(), 1); // yes, we check twice
-    }
+    QCOMPARE(q2.numRowsAffected(), 1);
+    QCOMPARE(q2.numRowsAffected(), 1); // yes, we check twice
 }
 
 void tst_QSqlQuery::size()
@@ -1782,25 +1728,24 @@ void tst_QSqlQuery::writeNull()
     CHECK_DATABASE(db);
     const QSqlDriver::DbmsType dbType = tst_Databases::getDatabaseType(db);
 
-    QSqlQuery q(db);
-    const QString tableName = qTableName("qtest_writenull", __FILE__, db);
-
     // The test data table is already used, so use a local hash to exercise the various
-    // cases from the QSqlResultPrivate::isVariantNull helper. Only PostgreSQL supports
-    // QUuid.
+    // cases from the QSqlResultPrivate::isVariantNull helper. Only PostgreSQL and Mimer SQL
+    // supports QUuid.
     QMultiHash<QString, QVariant> nullableTypes = {
-        {"varchar(20)", u"not null"_s},
-        {"varchar(20)", "not null"_ba},
-        {tst_Databases::dateTimeTypeName(db), QDateTime::currentDateTime()},
-        {tst_Databases::dateTypeName(db), QDate::currentDate()},
-        {tst_Databases::timeTypeName(db), QTime::currentTime()},
+        { "varchar(20)", u"not null"_s },
+        { "varchar(20)", "not null"_ba },
+        { tst_Databases::dateTimeTypeName(db), QDateTime::currentDateTime() },
+        { tst_Databases::dateTypeName(db), QDate::currentDate() },
+        { tst_Databases::timeTypeName(db), QTime::currentTime() },
     };
     if (dbType == QSqlDriver::PostgreSQL)
         nullableTypes["uuid"] = QUuid::createUuid();
+    if (dbType == QSqlDriver::MimerSQL)
+        nullableTypes["builtin.uuid"] = QUuid::createUuid();
 
     // Helper to count rows with null values in the data column.
     // Since QSqlDriver::QuerySize might not be supported, we have to count anyway
-    const auto countRowsWithNull = [&]{
+    const auto countRowsWithNull = [&](QSqlQuery &q, const QString &tableName){
         q.exec(QLatin1String("select id, data from %1 where data is null").arg(tableName));
         int size = 0;
         while (q.next())
@@ -1809,37 +1754,37 @@ void tst_QSqlQuery::writeNull()
     };
 
     for (const auto &nullableType : nullableTypes.keys()) {
-        const auto tableGuard = qScopeGuard([&]{
-            q.exec("drop table " + tableName);
-        });
+        TableScope ts(db, "qtest_writenull", __FILE__);
+        QSqlQuery q(db);
+
         const QVariant nonNullValue = nullableTypes.value(nullableType);
         // some useful diagnostic output in case of any test failure
         auto errorHandler = qScopeGuard([&]{
             qWarning() << "Test failure for data type" << nonNullValue.metaType().name();
-            q.exec("select id, data from " + tableName);
+            q.exec("select id, data from " + ts.tableName());
             while (q.next())
                 qWarning() << q.value(0) << q.value(1);
         });
         QString createQuery = QLatin1String("create table %3 (id int, data %1%2)")
             .arg(nullableType,
                  dbType == QSqlDriver::MSSqlServer || dbType == QSqlDriver::Sybase ? " null" : "",
-                 tableName);
+                 ts.tableName());
         QVERIFY_SQL(q, exec(createQuery));
 
         int expectedNullCount = 0;
         // Verify that inserting a non-null value works:
-        QVERIFY_SQL(q, prepare(QLatin1String("insert into %1 values(:id, :data)").arg(tableName)));
+        QVERIFY_SQL(q, prepare(QLatin1String("insert into %1 values(:id, :data)").arg(ts.tableName())));
         q.bindValue(":id", expectedNullCount);
         q.bindValue(":data", nonNullValue);
         QVERIFY_SQL(q, exec());
-        QCOMPARE(countRowsWithNull(), expectedNullCount);
+        QCOMPARE(countRowsWithNull(q, ts.tableName()), expectedNullCount);
 
         // Verify that inserting using a null QVariant produces a null entry in the database:
-        QVERIFY_SQL(q, prepare(QLatin1String("insert into %1 values(:id, :data)").arg(tableName)));
+        QVERIFY_SQL(q, prepare(QLatin1String("insert into %1 values(:id, :data)").arg(ts.tableName())));
         q.bindValue(":id", ++expectedNullCount);
         q.bindValue(":data", QVariant());
         QVERIFY_SQL(q, exec());
-        QCOMPARE(countRowsWithNull(), expectedNullCount);
+        QCOMPARE(countRowsWithNull(q, ts.tableName()), expectedNullCount);
 
         // Verify that writing a null-value (but not a null-variant) produces a
         // null entry in the database:
@@ -1854,57 +1799,36 @@ void tst_QSqlQuery::writeNull()
         const QVariant nullValueVariant(nullableMetaType, defaultData);
         QVERIFY(!nullValueVariant.isNull());
 
-        QVERIFY_SQL(q, prepare(QLatin1String("insert into %1 values(:id, :data)").arg(tableName)));
+        QVERIFY_SQL(q, prepare(QLatin1String("insert into %1 values(:id, :data)").arg(ts.tableName())));
         q.bindValue(":id", ++expectedNullCount);
         q.bindValue(":data", nullValueVariant);
         QVERIFY_SQL(q, exec());
-        QCOMPARE(countRowsWithNull(), expectedNullCount);
+        QCOMPARE(countRowsWithNull(q, ts.tableName()), expectedNullCount);
 
         // All tests passed for this type if we got here, so don't print diagnostics:
         errorHandler.dismiss();
     }
 }
 
-// TDS-specific BIT field test:
-void tst_QSqlQuery::tds_bitField()
-{
-    QFETCH(QString, dbName);
-    QSqlDatabase db = QSqlDatabase::database(dbName);
-    CHECK_DATABASE(db);
-    const QString tableName = qTableName("qtest_bittest", __FILE__, db);
-    QSqlQuery q(db);
-
-    QVERIFY_SQL(q, exec(QLatin1String("create table %1 (bitty bit)").arg(tableName)));
-    QVERIFY_SQL(q, exec(QLatin1String("insert into %1 values (0)").arg(tableName)));
-    QVERIFY_SQL(q, exec(QLatin1String("insert into %1 values (1)").arg(tableName)));
-    QVERIFY_SQL(q, exec("select bitty from " + tableName));
-
-    QVERIFY(q.next());
-    QCOMPARE(q.value(0).toInt(), 0);
-
-    QVERIFY(q.next());
-    QCOMPARE(q.value(0).toInt(), 1);
-}
-
 // Oracle-specific NULL BLOB test:
 void tst_QSqlQuery::oci_nullBlob()
 {
     QFETCH(QString, dbName);
     QSqlDatabase db = QSqlDatabase::database(dbName);
     CHECK_DATABASE(db);
-    const QString qtest_nullblob(qTableName("qtest_nullblob", __FILE__, db));
+    TableScope ts(db, "qtest_nullblob", __FILE__);
 
     QSqlQuery q(db);
     QVERIFY_SQL(q, exec(QLatin1String("create table %1 (id int primary key, bb blob)")
-                        .arg(qtest_nullblob)));
+                        .arg(ts.tableName())));
     QVERIFY_SQL(q, exec(QLatin1String("insert into %1 values (0, EMPTY_BLOB())")
-                        .arg(qtest_nullblob)));
-    QVERIFY_SQL(q, exec(QLatin1String("insert into %1 values (1, NULL)").arg(qtest_nullblob)));
+                        .arg(ts.tableName())));
+    QVERIFY_SQL(q, exec(QLatin1String("insert into %1 values (1, NULL)").arg(ts.tableName())));
     QVERIFY_SQL(q, exec(QLatin1String("insert into %1 values (2, 'aabbcc00112233445566')")
-                        .arg(qtest_nullblob)));
+                        .arg(ts.tableName())));
     // Necessary otherwise Oracle will bombard you with internal errors:
     q.setForwardOnly(true);
-    QVERIFY_SQL(q, exec(QLatin1String("select * from %1 order by id").arg(qtest_nullblob)));
+    QVERIFY_SQL(q, exec(QLatin1String("select * from %1 order by id").arg(ts.tableName())));
 
     QVERIFY(q.next());
     QVERIFY(q.value(1).toByteArray().isEmpty());
@@ -1925,15 +1849,15 @@ void tst_QSqlQuery::oci_rawField()
     QFETCH(QString, dbName);
     QSqlDatabase db = QSqlDatabase::database(dbName);
     CHECK_DATABASE(db);
-    const QString qtest_rawtest(qTableName("qtest_rawtest", __FILE__, db));
+    TableScope ts(db, "qtest_rawtest", __FILE__);
 
     QSqlQuery q(db);
     q.setForwardOnly(true);
-    QVERIFY_SQL(q, exec(QLatin1String("create table %1 (id int, col raw(20))").arg(qtest_rawtest)));
-    QVERIFY_SQL(q, exec(QLatin1String("insert into %1 values (0, NULL)").arg(qtest_rawtest)));
+    QVERIFY_SQL(q, exec(QLatin1String("create table %1 (id int, col raw(20))").arg(ts.tableName())));
+    QVERIFY_SQL(q, exec(QLatin1String("insert into %1 values (0, NULL)").arg(ts.tableName())));
     QVERIFY_SQL(q, exec(QLatin1String("insert into %1 values (1, '00aa1100ddeeff')")
-                        .arg(qtest_rawtest)));
-    QVERIFY_SQL(q, exec(QLatin1String("select col from %1 order by id").arg(qtest_rawtest)));
+                        .arg(ts.tableName())));
+    QVERIFY_SQL(q, exec(QLatin1String("select col from %1 order by id").arg(ts.tableName())));
     QVERIFY(q.next());
     QVERIFY(q.isNull(0));
     QVERIFY(q.value(0).toByteArray().isEmpty());
@@ -1959,22 +1883,21 @@ void tst_QSqlQuery::precision()
     });
 
     db.driver()->setNumericalPrecisionPolicy(QSql::HighPrecision);
-    const QString qtest_precision(qTableName("qtest_precision", __FILE__, db));
+    TableScope ts(db, "qtest_precision", __FILE__);
     static const QLatin1String precStr("1.2345678901234567891");
 
     {
         // need a new scope for SQLITE
         QSqlQuery q(db);
 
-        q.exec("drop table " + qtest_precision);
         QVERIFY_SQL(q, exec(QLatin1String(tst_Databases::isMSAccess(db)
                                           ? "CREATE TABLE %1 (col1 number)"
                                           : "CREATE TABLE %1 (col1 numeric(21, 20))")
-                            .arg(qtest_precision)));
+                            .arg(ts.tableName())));
 
         QVERIFY_SQL(q, exec(QLatin1String("INSERT INTO %1 (col1) VALUES (%2)")
-                            .arg(qtest_precision, precStr)));
-        QVERIFY_SQL(q, exec("SELECT * FROM " + qtest_precision));
+                            .arg(ts.tableName(), precStr)));
+        QVERIFY_SQL(q, exec("SELECT * FROM " + ts.tableName()));
         QVERIFY(q.next());
         const QString val = q.value(0).toString();
         if (!val.startsWith(precStr)) {
@@ -2014,113 +1937,35 @@ void tst_QSqlQuery::nullResult()
     QVERIFY(!q.seek(0));
 }
 
-// This test is just an experiment to see whether we can do query-based transactions.
-// The real transaction test is in tst_QSqlDatabase.
-void tst_QSqlQuery::transaction()
-{
-    // Query-based transaction is not really possible with Qt:
-    QSKIP("only tested manually by trained staff");
-
-    QFETCH(QString, dbName);
-    QSqlDatabase db = QSqlDatabase::database(dbName);
-    CHECK_DATABASE(db);
-    const QSqlDriver::DbmsType dbType = tst_Databases::getDatabaseType(db);
-    if (!db.driver()->hasFeature(QSqlDriver::Transactions))
-        QSKIP("DBMS not transaction-capable");
-
-    // This is the standard SQL:
-    QString startTransactionStr("start transaction");
-
-    if (dbType == QSqlDriver::MySqlServer)
-        startTransactionStr = "begin work";
-
-    QSqlQuery q(db);
-    QSqlQuery q2(db);
-
-    // Test a working transaction:
-    q.exec(startTransactionStr);
-    QVERIFY_SQL(q, exec(QLatin1String("insert into%1 values (40, 'VarChar40', 'Char40')")
-                        .arg(qtest)));
-    QVERIFY_SQL(q, exec(QLatin1String("select * from%1 where id = 40").arg(qtest)));
-
-    QVERIFY(q.next());
-    QCOMPARE(q.value(0).toInt(), 40);
-
-    QVERIFY_SQL(q, exec("commit"));
-    QVERIFY_SQL(q, exec(QLatin1String("select * from%1 where id = 40").arg(qtest)));
-
-    QVERIFY(q.next());
-    QCOMPARE(q.value(0).toInt(), 40);
-
-    // Test a rollback:
-    q.exec(startTransactionStr);
-    QVERIFY_SQL(q, exec(QLatin1String("insert into%1 values (41, 'VarChar41', 'Char41')")
-                        .arg(qtest)));
-    QVERIFY_SQL(q, exec(QLatin1String("select * from%1 where id = 41").arg(qtest)));
-
-    QVERIFY(q.next());
-    QCOMPARE(q.value(0).toInt(), 41);
-
-    if (!q.exec("rollback")) {
-        if (dbType == QSqlDriver::MySqlServer) {
-            qDebug("MySQL: %s", qPrintable(tst_Databases::printError(q.lastError())));
-            QSKIP("MySQL transaction failed "); // non-fatal
-        } else {
-            QFAIL("Could not rollback transaction: " + tst_Databases::printError(q.lastError()));
-        }
-    }
-    QVERIFY_SQL(q, exec(QLatin1String("select * from%1 where id = 41").arg(qtest)));
-    QVERIFY(!q.next());
-
-    // Test concurrent access:
-    q.exec(startTransactionStr);
-    QVERIFY_SQL(q, exec(QLatin1String("insert into%1 values (42, 'VarChar42', 'Char42')")
-                        .arg(qtest)));
-    QVERIFY_SQL(q, exec(QLatin1String("select * from%1 where id = 42").arg(qtest)));
-    QVERIFY(q.next());
-    QCOMPARE(q.value(0).toInt(), 42);
-
-    QVERIFY_SQL(q2, exec(QLatin1String("select * from%1 where id = 42").arg(qtest)));
-    if (q2.next())
-        qDebug("DBMS '%s' doesn't support query based transactions with concurrent access",
-               qPrintable(tst_Databases::dbToString(db)));
-
-    QVERIFY_SQL(q, exec("commit"));
-    QVERIFY_SQL(q2, exec(QLatin1String("select * from%1 where id = 42").arg(qtest)));
-
-    QVERIFY(q2.next());
-    QCOMPARE(q2.value(0).toInt(), 42);
-}
-
 void tst_QSqlQuery::joins()
 {
     QFETCH(QString, dbName);
     QSqlDatabase db = QSqlDatabase::database(dbName);
     CHECK_DATABASE(db);
     const QSqlDriver::DbmsType dbType = tst_Databases::getDatabaseType(db);
-    const QString qtestj1(qTableName("qtestj1", __FILE__, db));
-    const QString qtestj2(qTableName("qtestj2", __FILE__, db));
 
     if (dbType == QSqlDriver::Oracle || dbType == QSqlDriver::Sybase
             || dbType == QSqlDriver::Interbase || db.driverName().startsWith("QODBC")) {
         // Oracle broken beyond recognition - cannot outer join on more than one table:
         QSKIP("DBMS cannot understand standard SQL");
     }
+    TableScope j1(db, "qtestj1", __FILE__);
+    TableScope j2(db, "qtestj2", __FILE__);
 
     QSqlQuery q(db);
 
-    QVERIFY_SQL(q, exec(QLatin1String("create table %1 (id1 int, id2 int)").arg(qtestj1)));
-    QVERIFY_SQL(q, exec(QLatin1String("create table %1 (id int, name varchar(20))").arg(qtestj2)));
-    QVERIFY_SQL(q, exec(QLatin1String("insert into %1 values (1, 1)").arg(qtestj1)));
-    QVERIFY_SQL(q, exec(QLatin1String("insert into %1 values (1, 2)").arg(qtestj1)));
-    QVERIFY_SQL(q, exec(QLatin1String("insert into %1 values(1, 'trenton')").arg(qtestj2)));
-    QVERIFY_SQL(q, exec(QLatin1String("insert into %1 values(2, 'marius')").arg(qtestj2)));
+    QVERIFY_SQL(q, exec(QLatin1String("create table %1 (id1 int, id2 int)").arg(j1.tableName())));
+    QVERIFY_SQL(q, exec(QLatin1String("create table %1 (id int, name varchar(20))").arg(j2.tableName())));
+    QVERIFY_SQL(q, exec(QLatin1String("insert into %1 values (1, 1)").arg(j1.tableName())));
+    QVERIFY_SQL(q, exec(QLatin1String("insert into %1 values (1, 2)").arg(j1.tableName())));
+    QVERIFY_SQL(q, exec(QLatin1String("insert into %1 values(1, 'trenton')").arg(j2.tableName())));
+    QVERIFY_SQL(q, exec(QLatin1String("insert into %1 values(2, 'marius')").arg(j2.tableName())));
 
     QVERIFY_SQL(q, exec(QLatin1String(
                             "select qtestj1.id1, qtestj1.id2, qtestj2.id, qtestj2.name, "
                             "qtestj3.id, qtestj3.name from %1 qtestj1 left outer join %2 qtestj2 "
                             "on (qtestj1.id1 = qtestj2.id) left outer join %2 as qtestj3 "
-                            "on (qtestj1.id2 = qtestj3.id)").arg(qtestj1, qtestj2)));
+                            "on (qtestj1.id2 = qtestj3.id)").arg(j1.tableName(), j2.tableName())));
 
     QVERIFY(q.next());
     QCOMPARE(q.value(0).toInt(), 1);
@@ -2168,7 +2013,8 @@ void tst_QSqlQuery::prepare_bind_exec()
     QSqlDatabase db = QSqlDatabase::database(dbName);
     CHECK_DATABASE(db);
     const QSqlDriver::DbmsType dbType = tst_Databases::getDatabaseType(db);
-    const QString qtest_prepare(qTableName("qtest_prepare", __FILE__, db));
+    TableScope ts(db, "qtest_prepare", __FILE__);
+    const auto &qtest_prepare = ts.tableName();
 
     if (dbType == QSqlDriver::DB2)
         QSKIP("Needs someone with more Unicode knowledge than I have to fix");
@@ -2191,6 +2037,7 @@ void tst_QSqlQuery::prepare_bind_exec()
         switch (dbType) {
         case QSqlDriver::MSSqlServer:
         case QSqlDriver::Sybase:
+        case QSqlDriver::MimerSQL:
             createQuery = QLatin1String("create table %1 (id int primary key, "
                                         "name nvarchar(200) null, name2 nvarchar(200) null)");
             break;
@@ -2208,13 +2055,10 @@ void tst_QSqlQuery::prepare_bind_exec()
             break;
         }
 
-        q.exec("drop table " + qtest_prepare);
         QVERIFY_SQL(q, exec(createQuery.arg(qtest_prepare)));
         QVERIFY(q.prepare(QLatin1String("insert into %1 (id, name) values (:id, :name)")
                           .arg(qtest_prepare)));
-        int i;
-
-        for (i = 0; i < 6; ++i) {
+        for (int i = 0; i < 6; ++i) {
             q.bindValue(":name", values[i]);
             q.bindValue(":id", i);
             QVERIFY_SQL(q, exec());
@@ -2222,6 +2066,12 @@ void tst_QSqlQuery::prepare_bind_exec()
             QCOMPARE(m.size(), qsizetype(2));
             QCOMPARE(m.at(0).toInt(), i);
             QCOMPARE(m.at(1).toString(), values[i]);
+            const QStringList n = q.boundValueNames();
+            QCOMPARE(n.size(), 2);
+            QCOMPARE(n.at(0), ":id");
+            QCOMPARE(n.at(1), ":name");
+            QCOMPARE(q.boundValueName(0), ":id");
+            QCOMPARE(q.boundValueName(1), ":name");
         }
 
         q.bindValue(":id", 8);
@@ -2234,7 +2084,7 @@ void tst_QSqlQuery::prepare_bind_exec()
         }
 
         QVERIFY_SQL(q, exec(QLatin1String("SELECT * FROM %1 order by id").arg(qtest_prepare)));
-        for (i = 0; i < 6; ++i) {
+        for (int i = 0; i < 6; ++i) {
             QVERIFY(q.next());
             QCOMPARE(q.value(0).toInt(), i);
             QCOMPARE(q.value(1).toString().trimmed(), values[i]);
@@ -2259,7 +2109,7 @@ void tst_QSqlQuery::prepare_bind_exec()
         QVERIFY(q.exec(QLatin1String("select * from %1 where id > 98 order by id")
                        .arg(qtest_prepare)));
 
-        for (i = 99; i <= 100; ++i) {
+        for (int i = 99; i <= 100; ++i) {
             QVERIFY(q.next());
             QCOMPARE(q.value(0).toInt(), i);
             QCOMPARE(q.value(1).toString().trimmed(), u"Bart");
@@ -2268,7 +2118,7 @@ void tst_QSqlQuery::prepare_bind_exec()
         /*** SELECT stuff ***/
         QVERIFY(q.prepare(QLatin1String("select * from %1 where id = :id").arg(qtest_prepare)));
 
-        for (i = 0; i < 6; ++i) {
+        for (int i = 0; i < 6; ++i) {
             q.bindValue(":id", i);
             QVERIFY_SQL(q, exec());
             QVERIFY_SQL(q, next());
@@ -2381,7 +2231,7 @@ void tst_QSqlQuery::prepare_bind_exec()
         QFAIL_SQL(q, exec());
 
         QVERIFY_SQL(q, exec(QLatin1String("SELECT * FROM %1 order by id").arg(qtest_prepare)));
-        for (i = 0; i < 6; ++i) {
+        for (int i = 0; i < 6; ++i) {
             QVERIFY(q.next());
             QCOMPARE(q.value(0).toInt(), i);
             QCOMPARE(q.value(1).toString().trimmed(), values[i]);
@@ -2407,7 +2257,7 @@ void tst_QSqlQuery::prepare_bind_exec()
 
         QVERIFY(q.exec(QLatin1String("select * from %1 where id > 98 order by id")
                        .arg(qtest_prepare)));
-        for (i = 99; i <= 100; ++i) {
+        for (int i = 99; i <= 100; ++i) {
             QVERIFY(q.next());
             QCOMPARE(q.value(0).toInt(), i);
             QCOMPARE(q.value(1).toString().trimmed(), u"Bart");
@@ -2426,7 +2276,7 @@ void tst_QSqlQuery::prepare_bind_exec()
         QVERIFY(q.prepare(QLatin1String(
                               "insert into %1 (id, name, name2) values (:id, :name, :name)")
                           .arg(qtest_prepare)));
-        for (i = 101; i < 103; ++i) {
+        for (int i = 101; i < 103; ++i) {
             q.bindValue(":id", i);
             q.bindValue(":name", "name");
             QVERIFY(q.exec());
@@ -2444,7 +2294,7 @@ void tst_QSqlQuery::prepare_bind_exec()
         // works correctly - QTBUG-65150
         QVERIFY(q.prepare(QLatin1String("insert into %1 (id, name, name2) values (:id, :id, :name)")
                           .arg(qtest_prepare)));
-        for (i = 104; i < 106; ++i) {
+        for (int i = 104; i < 106; ++i) {
             q.bindValue(":id", i);
             q.bindValue(":name", "name");
             QVERIFY(q.exec());
@@ -2459,7 +2309,7 @@ void tst_QSqlQuery::prepare_bind_exec()
         // Test that duplicated named placeholders in any order
         QVERIFY(q.prepare(QLatin1String("insert into %1 (id, name, name2) values (:id, :name, :id)")
                           .arg(qtest_prepare)));
-        for (i = 107; i < 109; ++i) {
+        for (int i = 107; i < 109; ++i) {
             q.bindValue(":id", i);
             q.bindValue(":name", "name");
             QVERIFY(q.exec());
@@ -2528,12 +2378,12 @@ void tst_QSqlQuery::sqlServerLongStrings()
     if (tst_Databases::getDatabaseType(db) != QSqlDriver::MSSqlServer)
         QSKIP("Test is specific to SQL Server");
 
+    TableScope ts(db, "qtest_longstr", __FILE__);
     QSqlQuery q(db);
-    const QString tableName = qTableName("qtest_longstr", __FILE__, db);
 
     QVERIFY_SQL(q, exec(QLatin1String("CREATE TABLE %1 (id int primary key, longstring ntext)")
-                        .arg(tableName)));
-    QVERIFY_SQL(q, prepare(QLatin1String("INSERT INTO %1 VALUES (?, ?)").arg(tableName)));
+                        .arg(ts.tableName())));
+    QVERIFY_SQL(q, prepare(QLatin1String("INSERT INTO %1 VALUES (?, ?)").arg(ts.tableName())));
 
     q.addBindValue(0);
     q.addBindValue(u"bubu"_s);
@@ -2544,7 +2394,7 @@ void tst_QSqlQuery::sqlServerLongStrings()
     q.addBindValue(1);
     q.addBindValue(testStr);
     QVERIFY_SQL(q, exec());
-    QVERIFY_SQL(q, exec("select * from " + tableName));
+    QVERIFY_SQL(q, exec("select * from " + ts.tableName()));
 
     QVERIFY_SQL(q, next());
     QCOMPARE(q.value(0).toInt(), 0);
@@ -2589,9 +2439,8 @@ void tst_QSqlQuery::batchExec()
     CHECK_DATABASE(db);
 
     QSqlQuery q(db);
-    const QString tableName = qTableName("qtest_batch", __FILE__, db);
-    tst_Databases::safeDropTable(db, tableName);
-
+    TableScope ts(db, "qtest_batch", __FILE__);
+    const auto &tableName = ts.tableName();
     const auto dbType = tst_Databases::getDatabaseType(db);
     QLatin1String timeStampString(dbType == QSqlDriver::Interbase ? "TIMESTAMP" : "TIMESTAMP (3)");
 
@@ -2631,7 +2480,7 @@ void tst_QSqlQuery::batchExec()
         QCOMPARE(q.value(0).toInt(), intCol.at(i));
         QCOMPARE(q.value(1).toString(), charCol.at(i));
         QCOMPARE(q.value(2).toDate(), dateCol.at(i));
-        QCOMPARE(q.value(3).toDouble(), numCol.at(i));
+        QVERIFY(qFuzzyCompare(q.value(3).toDouble(), numCol.at(i).toDouble()));
         if (tst_Databases::getDatabaseType(db) == QSqlDriver::MySqlServer
             && timeStampCol.at(i).isNull()) {
             QEXPECT_FAIL("", "This appears to be a bug in MySQL as it converts null datetimes to "
@@ -2663,7 +2512,7 @@ void tst_QSqlQuery::batchExec()
         QCOMPARE(q.value(0).toInt(), intCol.at(i));
         QCOMPARE(q.value(1).toString(), charCol.at(i));
         QCOMPARE(q.value(2).toDate(), dateCol.at(i));
-        QCOMPARE(q.value(3).toDouble(), numCol.at(i));
+        QVERIFY(qFuzzyCompare(q.value(3).toDouble(), numCol.at(i).toDouble()));
         if (tst_Databases::getDatabaseType(db) == QSqlDriver::MySqlServer
             && timeStampCol.at(i).isNull()) {
             QEXPECT_FAIL("", "This appears to be a bug in MySQL as it converts null datetimes to "
@@ -2675,8 +2524,9 @@ void tst_QSqlQuery::batchExec()
     }
 
     // Only test the prepared stored procedure approach where the driver has support
-    // for batch operations as this will not work without it
-    if (db.driver()->hasFeature(QSqlDriver::BatchOperations)) {
+    // for batch operations as this will not work without it.
+    // Currently Mimer SQL cannot use output parameters with procedures in batch operations.
+    if (dbType != QSqlDriver::MimerSQL && db.driver()->hasFeature(QSqlDriver::BatchOperations)) {
         const QString procName = qTableName("qtest_batch_proc", __FILE__, db);
         QVERIFY_SQL(q, exec(QLatin1String(
                                 "create or replace procedure %1 (x in timestamp, y out timestamp) "
@@ -2701,19 +2551,19 @@ void tst_QSqlQuery::QTBUG_43874()
     QFETCH(QString, dbName);
     QSqlDatabase db = QSqlDatabase::database(dbName);
     CHECK_DATABASE(db);
+    TableScope ts(db, "bug43874", __FILE__);
 
     QSqlQuery q(db);
-    const QString tableName = qTableName("bug43874", __FILE__, db);
 
-    QVERIFY_SQL(q, exec(QLatin1String("CREATE TABLE %1 (id INT)").arg(tableName)));
-    QVERIFY_SQL(q, prepare(QLatin1String("INSERT INTO %1 (id) VALUES (?)").arg(tableName)));
+    QVERIFY_SQL(q, exec(QLatin1String("CREATE TABLE %1 (id INT)").arg(ts.tableName())));
+    QVERIFY_SQL(q, prepare(QLatin1String("INSERT INTO %1 (id) VALUES (?)").arg(ts.tableName())));
 
     for (int i = 0; i < 2; ++i) {
         const QVariantList ids = { i };
         q.addBindValue(ids);
         QVERIFY_SQL(q, execBatch());
     }
-    QVERIFY_SQL(q, exec(QLatin1String("SELECT id FROM %1 ORDER BY id").arg(tableName)));
+    QVERIFY_SQL(q, exec(QLatin1String("SELECT id FROM %1 ORDER BY id").arg(ts.tableName())));
 
     QVERIFY(q.next());
     QCOMPARE(q.value(0).toInt(), 0);
@@ -2808,14 +2658,14 @@ void tst_QSqlQuery::record_sqlite()
     QSqlDatabase db = QSqlDatabase::database(dbName);
     CHECK_DATABASE(db);
 
+    TableScope ts(db, "record_sqlite");
     QSqlQuery q(db);
-    const QString tableName = qTableName("record_sqlite", __FILE__, db);
 
     QVERIFY_SQL(q, exec(QLatin1String(
                             "create table %1(id integer primary key, name varchar, title int)")
-                        .arg(tableName)));
+                        .arg(ts.tableName())));
 
-    QSqlRecord rec = db.record(tableName);
+    QSqlRecord rec = db.record(ts.tableName());
 
     QCOMPARE(rec.count(), 3);
     QCOMPARE(rec.field(0).metaType().id(), QMetaType::Int);
@@ -2823,7 +2673,7 @@ void tst_QSqlQuery::record_sqlite()
     QCOMPARE(rec.field(2).metaType().id(), QMetaType::Int);
 
     // Important - select from an empty table:
-    QVERIFY_SQL(q, exec("select id, name, title from " + tableName));
+    QVERIFY_SQL(q, exec("select id, name, title from " + ts.tableName()));
 
     rec = q.record();
     QCOMPARE(rec.count(), 3);
@@ -2838,20 +2688,19 @@ void tst_QSqlQuery::oraLong()
     QSqlDatabase db = QSqlDatabase::database(dbName);
     CHECK_DATABASE(db);
 
-    QSqlQuery q(db);
-
     QString aLotOfText(127000, QLatin1Char('H'));
-    const QString tableName = qTableName("qtest_longstr", __FILE__, db);
+    TableScope ts(db, "qtest_longstr", __FILE__);
 
+    QSqlQuery q(db);
     QVERIFY_SQL(q, exec(QLatin1String("create table %1 (id int primary key, astr long)")
-                        .arg(tableName)));
+                        .arg(ts.tableName())));
     QVERIFY_SQL(q, prepare(QLatin1String("insert into %1 (id, astr) values (?, ?)")
-                           .arg(tableName)));
+                           .arg(ts.tableName())));
     q.addBindValue(1);
     q.addBindValue(aLotOfText);
     QVERIFY_SQL(q, exec());
 
-    QVERIFY_SQL(q, exec("select id,astr from " + tableName));
+    QVERIFY_SQL(q, exec("select id,astr from " + ts.tableName()));
 
     QVERIFY(q.next());
     QCOMPARE(q.value(0).toInt(), 1);
@@ -2864,12 +2713,11 @@ void tst_QSqlQuery::execErrorRecovery()
     QSqlDatabase db = QSqlDatabase::database(dbName);
     CHECK_DATABASE(db);
 
-    QSqlQuery q(db);
+    TableScope ts(db, "qtest_exerr", __FILE__);
 
-    const QString tbl = qTableName("qtest_exerr", __FILE__, db);
-    q.exec("drop table " + tbl);
-    QVERIFY_SQL(q, exec(QLatin1String("create table %1 (id int not null primary key)").arg(tbl)));
-    QVERIFY_SQL(q, prepare(QLatin1String("insert into %1 values (?)").arg(tbl)));
+    QSqlQuery q(db);
+    QVERIFY_SQL(q, exec(QLatin1String("create table %1 (id int not null primary key)").arg(ts.tableName())));
+    QVERIFY_SQL(q, prepare(QLatin1String("insert into %1 values (?)").arg(ts.tableName())));
 
     q.addBindValue(1);
     QVERIFY_SQL(q, exec());
@@ -2926,13 +2774,12 @@ void tst_QSqlQuery::lastInsertId()
     // PostgreSQL >= 8.1 relies on lastval() which does not work if a value is
     // manually inserted to the serial field, so we create a table specifically
     if (tst_Databases::getDatabaseType(db) == QSqlDriver::PostgreSQL) {
-        const auto tst_lastInsertId = qTableName("tst_lastInsertId", __FILE__, db);
-        tst_Databases::safeDropTable(db, tst_lastInsertId);
+        TableScope ts(db, "tst_lastInsertId", __FILE__);
         QVERIFY_SQL(q, exec(QLatin1String("create table %1 (id serial not null, t_varchar "
                                           "varchar(20), t_char char(20), primary key(id))")
-                            .arg(tst_lastInsertId)));
+                            .arg(ts.tableName())));
         QVERIFY_SQL(q, exec(QLatin1String("insert into %1 (t_varchar, t_char) values "
-                                          "('VarChar41', 'Char41')").arg(tst_lastInsertId)));
+                                          "('VarChar41', 'Char41')").arg(ts.tableName())));
     } else {
         QVERIFY_SQL(q, exec(QLatin1String("insert into %1 values (41, 'VarChar41', 'Char41')")
                             .arg(qtest)));
@@ -2978,18 +2825,18 @@ void tst_QSqlQuery::psql_bindWithDoubleColonCastOperator()
     QSqlDatabase db = QSqlDatabase::database(dbName);
     CHECK_DATABASE(db);
 
-    const QString tablename(qTableName("bindtest", __FILE__, db));
+    TableScope ts(db, "bindtest", __FILE__);
 
     QSqlQuery q(db);
     QVERIFY_SQL(q, exec(QLatin1String(
                             "create table %1 (id1 int, id2 int, id3 int, fld1 int, fld2 int)")
-                        .arg(tablename)));
-    QVERIFY_SQL(q, exec(QLatin1String("insert into %1 values (1, 2, 3, 10, 5)").arg(tablename)));
+                        .arg(ts.tableName())));
+    QVERIFY_SQL(q, exec(QLatin1String("insert into %1 values (1, 2, 3, 10, 5)").arg(ts.tableName())));
 
     // Insert tableName last to let the other %-tokens' numbering match what they're replaced with:
     const auto queryTemplate = QLatin1String("select sum((fld1 - fld2)::int) from %4 where "
                                              "id1 = %1 and id2 =%2 and id3=%3");
-    const QString query = queryTemplate.arg(":myid1", ":myid2", ":myid3", tablename);
+    const QString query = queryTemplate.arg(":myid1", ":myid2", ":myid3", ts.tableName());
     QVERIFY_SQL(q, prepare(query));
     q.bindValue(":myid1", 1);
     q.bindValue(":myid2", 2);
@@ -3000,7 +2847,7 @@ void tst_QSqlQuery::psql_bindWithDoubleColonCastOperator()
 
     // The positional placeholders are converted to named placeholders in executedQuery()
     const QString expected = db.driver()->hasFeature(QSqlDriver::PreparedQueries)
-        ? query : queryTemplate.arg("1", "2", "3", tablename);
+        ? query : queryTemplate.arg("1", "2", "3", ts.tableName());
     QCOMPARE(q.executedQuery(), expected);
 }
 
@@ -3016,9 +2863,9 @@ void tst_QSqlQuery::psql_specialFloatValues()
 
     CHECK_DATABASE(db);
     QSqlQuery query(db);
-    const QString tableName = qTableName("floattest", __FILE__, db);
-    QVERIFY_SQL(query, exec(QLatin1String("create table %1 (value float)").arg(tableName)));
-    QVERIFY_SQL(query, prepare(QLatin1String("insert into %1 values(:value)").arg(tableName)));
+    TableScope ts(db, "floattest", __FILE__);
+    QVERIFY_SQL(query, exec(QLatin1String("create table %1 (value float)").arg(ts.tableName())));
+    QVERIFY_SQL(query, prepare(QLatin1String("insert into %1 values(:value)").arg(ts.tableName())));
 
     const QVariant data[] = {
         QVariant(double(42.42)),
@@ -3033,8 +2880,6 @@ void tst_QSqlQuery::psql_specialFloatValues()
         query.bindValue(":value", v);
         QVERIFY_SQL(query, exec());
     }
-
-    QVERIFY_SQL(query, exec("drop table " + tableName));
 }
 
 /* For task 157397: Using QSqlQuery with an invalid QSqlDatabase
@@ -3183,11 +3028,10 @@ void tst_QSqlQuery::sqlite_finish()
         db2.setDatabaseName(db.databaseName());
         QVERIFY_SQL(db2, open());
 
-        const QString tableName(qTableName("qtest_lockedtable", __FILE__, db));
-        const auto wrapup = qScopeGuard([&]() { tst_Databases::safeDropTable(db, tableName); });
+        TableScope ts(db, "qtest_lockedtable", __FILE__);
+        const auto &tableName = ts.tableName();
         QSqlQuery q(db);
 
-        tst_Databases::safeDropTable(db, tableName);
         q.exec(QLatin1String("CREATE TABLE %1 (pk_id INTEGER PRIMARY KEY, whatever TEXT)")
                .arg(tableName));
         q.exec(QLatin1String("INSERT INTO %1 values(1, 'whatever')").arg(tableName));
@@ -3220,7 +3064,8 @@ void tst_QSqlQuery::nextResult()
         QSKIP("DBMS does not support multiple result sets");
 
     QSqlQuery q(db);
-    const QString tableName(qTableName("more_results", __FILE__, db));
+    TableScope ts(db, "more_results", __FILE__);
+    const auto &tableName = ts.tableName();
 
     QVERIFY_SQL(q, exec(QLatin1String(
                             "CREATE TABLE %1 (id integer, text varchar(20), "
@@ -3447,7 +3292,7 @@ void tst_QSqlQuery::blobsPreparedQuery()
         QSKIP("DBMS does not support BLOBs or prepared queries");
     }
 
-    const QString tableName(qTableName("blobstest", __FILE__, db));
+    TableScope ts(db, "blobstest", __FILE__);
 
     QSqlQuery q(db);
     q.setForwardOnly(true); // This is needed to make the test work with DB2.
@@ -3461,8 +3306,8 @@ void tst_QSqlQuery::blobsPreparedQuery()
                                  : dbType == QSqlDriver::MSSqlServer ? "IMAGE" : "BLOB");
 
     QVERIFY_SQL(q, exec(QLatin1String("CREATE TABLE %1(id INTEGER, data %2)")
-                        .arg(tableName, typeName)));
-    q.prepare(QLatin1String("INSERT INTO %1(id, data) VALUES(:id, :data)").arg(tableName));
+                        .arg(ts.tableName(), typeName)));
+    q.prepare(QLatin1String("INSERT INTO %1(id, data) VALUES(:id, :data)").arg(ts.tableName()));
     q.bindValue(":id", 1);
     q.bindValue(":data", shortBLOB);
     QVERIFY_SQL(q, exec());
@@ -3472,7 +3317,7 @@ void tst_QSqlQuery::blobsPreparedQuery()
     QVERIFY_SQL(q, exec());
 
     // Two executions and result sets
-    q.prepare(QLatin1String("SELECT data FROM %1 WHERE id = ?").arg(tableName));
+    q.prepare(QLatin1String("SELECT data FROM %1 WHERE id = ?").arg(ts.tableName()));
     q.bindValue(0, QVariant(1));
     QVERIFY_SQL(q, exec());
     QVERIFY_SQL(q, next());
@@ -3484,7 +3329,7 @@ void tst_QSqlQuery::blobsPreparedQuery()
     QCOMPARE(q.value(0).toString().toUtf8(), longerBLOB.toUtf8());
 
     // Only one execution and result set
-    q.prepare(QLatin1String("SELECT id, data FROM %1 ORDER BY id").arg(tableName));
+    q.prepare(QLatin1String("SELECT id, data FROM %1 ORDER BY id").arg(ts.tableName()));
     QVERIFY_SQL(q, exec());
     QVERIFY_SQL(q, next());
     QCOMPARE(q.value(1).toString(), shortBLOB);
@@ -3500,11 +3345,11 @@ void tst_QSqlQuery::emptyTableNavigate()
     CHECK_DATABASE(db);
 
     {
+        TableScope ts(db, "qtest_empty", __FILE__);
         QSqlQuery q(db);
-        const QString tbl = qTableName("qtest_empty", __FILE__, db);
-        q.exec("drop table " + tbl);
-        QVERIFY_SQL(q, exec(QLatin1String("create table %1 (id char(10))").arg(tbl)));
-        QVERIFY_SQL(q, prepare("select * from " + tbl));
+        q.exec("drop table " + ts.tableName());
+        QVERIFY_SQL(q, exec(QLatin1String("create table %1 (id char(10))").arg(ts.tableName())));
+        QVERIFY_SQL(q, prepare("select * from " + ts.tableName()));
         QVERIFY_SQL(q, exec());
         QVERIFY(!q.next());
         QVERIFY(!q.lastError().isValid());
@@ -3516,8 +3361,7 @@ void tst_QSqlQuery::timeStampParsing()
     QFETCH(QString, dbName);
     QSqlDatabase db = QSqlDatabase::database(dbName);
     CHECK_DATABASE(db);
-    const QString tableName(qTableName("timeStampParsing", __FILE__, db));
-    tst_Databases::safeDropTable(db, tableName);
+    TableScope ts(db, "timeStampParsing", __FILE__);
     QSqlQuery q(db);
     QLatin1String creator;
     switch (tst_Databases::getDatabaseType(db)) {
@@ -3533,16 +3377,30 @@ void tst_QSqlQuery::timeStampParsing()
         // Since there is no auto-increment feature in Interbase we allow it to be null
         creator = QLatin1String("CREATE TABLE %1(id integer, datefield timestamp);");
         break;
+    case QSqlDriver::MimerSQL:
+        creator = QLatin1String("CREATE UNIQUE SEQUENCE timeStampParsing_seq");
+        QVERIFY_SQL(q, exec(creator));
+        creator = QLatin1String("CREATE TABLE %1(id integer NOT NULL default next value "
+                                "for timeStampParsing_seq, "
+                                "datefield timestamp, primary key(id));");
+        break;
     default:
         creator = QLatin1String("CREATE TABLE %1("
                                 "\"id\" integer NOT NULL PRIMARY KEY AUTOINCREMENT, "
                                 "\"datefield\" timestamp);");
         break;
     }
-    QVERIFY_SQL(q, exec(creator.arg(tableName)));
-    QVERIFY_SQL(q, exec(QLatin1String("INSERT INTO %1 (datefield) VALUES (current_timestamp);")
-                        .arg(tableName)));
-    QVERIFY_SQL(q, exec(QLatin1String("SELECT * FROM ") + tableName));
+    QVERIFY_SQL(q, exec(creator.arg(ts.tableName())));
+    QLatin1String currentTimestamp;
+    if (tst_Databases::getDatabaseType(db) == QSqlDriver::MimerSQL)
+        currentTimestamp = QLatin1String("localtimestamp");
+    else
+        currentTimestamp = QLatin1String("current_timestamp");
+    QVERIFY_SQL(q,
+                exec(QLatin1String("INSERT INTO %1 (datefield) VALUES (%2);")
+                             .arg(ts.tableName())
+                             .arg(currentTimestamp)));
+    QVERIFY_SQL(q, exec(QLatin1String("SELECT * FROM ") + ts.tableName()));
     while (q.next())
         QVERIFY(q.value(1).toDateTime().isValid());
 }
@@ -3552,10 +3410,10 @@ void tst_QSqlQuery::task_217003()
     QFETCH(QString, dbName);
     QSqlDatabase db = QSqlDatabase::database(dbName);
     CHECK_DATABASE(db);
-    QSqlQuery q(db);
-    const QString planets = qTableName("Planet", __FILE__, db);
+    TableScope ts(db, "Planet", __FILE__);
+    const auto &planets = ts.tableName();
 
-    q.exec("drop table " + planets);
+    QSqlQuery q(db);
     QVERIFY_SQL(q, exec(QLatin1String("create table %1 (Name varchar(20))").arg(planets)));
     QVERIFY_SQL(q, exec(QLatin1String("insert into %1 VALUES ('Mercury')").arg(planets)));
     QVERIFY_SQL(q, exec(QLatin1String("insert into %1 VALUES ('Venus')").arg(planets)));
@@ -3581,11 +3439,10 @@ void tst_QSqlQuery::task_250026()
     QFETCH(QString, dbName);
     QSqlDatabase db = QSqlDatabase::database(dbName);
     CHECK_DATABASE(db);
+    TableScope ts(db, "task_250026", __FILE__);
+
     QSqlQuery q(db);
-
-    const QString tableName(qTableName("task_250026", __FILE__, db));
-
-    if (!q.exec(QLatin1String("create table %1 (longfield varchar(1100))").arg(tableName))) {
+    if (!q.exec(QLatin1String("create table %1 (longfield varchar(1100))").arg(ts.tableName()))) {
         qDebug() << "Error" << q.lastError();
         QSKIP("Db doesn't support \"1100\" as a size for fields");
     }
@@ -3593,12 +3450,12 @@ void tst_QSqlQuery::task_250026()
     const QString data258(258, QLatin1Char('A'));
     const QString data1026(1026, QLatin1Char('A'));
     QVERIFY_SQL(q, prepare(QLatin1String("insert into %1(longfield) VALUES (:longfield)")
-                           .arg(tableName)));
+                           .arg(ts.tableName())));
     q.bindValue(":longfield", data258);
     QVERIFY_SQL(q, exec());
     q.bindValue(":longfield", data1026);
     QVERIFY_SQL(q, exec());
-    QVERIFY_SQL(q, exec("select * from " + tableName));
+    QVERIFY_SQL(q, exec("select * from " + ts.tableName()));
     QVERIFY_SQL(q, next());
     QCOMPARE(q.value(0).toString().size(), data258.size());
     QVERIFY_SQL(q, next());
@@ -3619,19 +3476,19 @@ void tst_QSqlQuery::crashQueryOnCloseDatabase()
     }
 }
 
-void tst_QSqlQuery::task_233829()
+void tst_QSqlQuery::testNaN()
 {
     QFETCH(QString, dbName);
     QSqlDatabase db = QSqlDatabase::database(dbName);
     CHECK_DATABASE(db);
+    TableScope ts(db, "testNaN", __FILE__);
 
     QSqlQuery q(db);
-    const QString tableName(qTableName("task_233829", __FILE__, db));
     QVERIFY_SQL(q, exec(QLatin1String(
                             "CREATE TABLE %1(dbl1 double precision,dbl2 double precision) "
-                            "without oids;").arg(tableName)));
+                            "without oids;").arg(ts.tableName())));
     const QString queryString =
-        QLatin1String("INSERT INTO %1(dbl1, dbl2) VALUES(?,?)").arg(tableName);
+        QLatin1String("INSERT INTO %1(dbl1, dbl2) VALUES(?,?)").arg(ts.tableName());
 
     const double nan = qQNaN();
     QVERIFY_SQL(q, prepare(queryString));
@@ -3640,13 +3497,11 @@ void tst_QSqlQuery::task_233829()
     QVERIFY_SQL(q, exec());
 }
 
-void tst_QSqlQuery::QTBUG_12477()
+void tst_QSqlQuery::psqlNumericMetadata()
 {
     QFETCH(QString, dbName);
     QSqlDatabase db = QSqlDatabase::database(dbName);
     CHECK_DATABASE(db);
-    if (!db.driverName().startsWith("QPSQL"))
-        QSKIP("PostgreSQL-specific test");
 
     QSqlQuery q(db);
     QVERIFY_SQL(q, exec("SELECT 1::bit, '10101010000111101101'::varbit, "
@@ -3689,11 +3544,10 @@ void tst_QSqlQuery::sqlServerReturn0()
     if (tst_Databases::getDatabaseType(db) != QSqlDriver::MSSqlServer)
         QSKIP("Test is specific to SQL Server");
 
-    const QString tableName(qTableName("test141895", __FILE__, db));
-    const QString procName(qTableName("test141895_proc", __FILE__, db));
+    ProcScope ps(db, "test141895_proc", __FILE__);
+    TableScope ts(db, "test141895", __FILE__);
+    const auto &tableName = ts.tableName();
     QSqlQuery q(db);
-    q.exec("DROP TABLE " + tableName);
-    q.exec("DROP PROCEDURE " + procName);
     QVERIFY_SQL(q, exec(QLatin1String("CREATE TABLE %1 (id integer)").arg(tableName)));
     QVERIFY_SQL(q, exec(QLatin1String("INSERT INTO %1 (id) VALUES (1)").arg(tableName)));
     QVERIFY_SQL(q, exec(QLatin1String("INSERT INTO %1 (id) VALUES (2)").arg(tableName)));
@@ -3701,10 +3555,10 @@ void tst_QSqlQuery::sqlServerReturn0()
     QVERIFY_SQL(q, exec(QLatin1String("INSERT INTO %1 (id) VALUES (3)").arg(tableName)));
     QVERIFY_SQL(q, exec(QLatin1String("INSERT INTO %1 (id) VALUES (1)").arg(tableName)));
     QVERIFY_SQL(q, exec(QLatin1String("CREATE PROCEDURE %1 AS "
-                                      "SELECT * FROM %1 WHERE ID = 2 "
-                                      "RETURN 0").arg(tableName)));
+                                      "SELECT * FROM %2 WHERE ID = 2 "
+                                      "RETURN 0").arg(ps.name(), ts.tableName())));
 
-    QVERIFY_SQL(q, exec(QLatin1String("{CALL %1}").arg(procName)));
+    QVERIFY_SQL(q, exec(QLatin1String("{CALL %1}").arg(ps.name())));
     QVERIFY_SQL(q, next());
 }
 
@@ -3802,24 +3656,21 @@ void tst_QSqlQuery::QTBUG_18435()
     if (dbType != QSqlDriver::MSSqlServer || !db.driverName().startsWith("QODBC"))
         QSKIP("Test is specific to SQL Server");
 
+    ProcScope ps(db, "qtbug_18435_proc", __FILE__);
     QSqlQuery q(db);
-    QString procName(qTableName("qtbug_18435_proc", __FILE__, db));
 
-    q.exec("DROP PROCEDURE " + procName);
     const QString stmt = QLatin1String("CREATE PROCEDURE %1 @key nvarchar(50) OUTPUT AS\n"
                                        "BEGIN\n"
                                        "  SET NOCOUNT ON\n"
                                        "  SET @key = 'TEST'\n"
-                                       "END\n").arg(procName);
+                                       "END\n").arg(ps.name());
 
     QVERIFY_SQL(q, exec(stmt));
-    QVERIFY_SQL(q, prepare(QLatin1String("{CALL %1(?)}").arg(procName)));
+    QVERIFY_SQL(q, prepare(QLatin1String("{CALL %1(?)}").arg(ps.name())));
     const QString testStr = "0123";
     q.bindValue(0, testStr, QSql::Out);
     QVERIFY_SQL(q, exec());
     QCOMPARE(q.boundValue(0).toString(), QLatin1String("TEST"));
-
-    QVERIFY_SQL(q, exec("DROP PROCEDURE " + procName));
 }
 
 void tst_QSqlQuery::QTBUG_5251()
@@ -3829,15 +3680,14 @@ void tst_QSqlQuery::QTBUG_5251()
     QFETCH(QString, dbName);
     QSqlDatabase db = QSqlDatabase::database(dbName);
     CHECK_DATABASE(db);
-    const QString timetest(qTableName("timetest", __FILE__, db));
-    tst_Databases::safeDropTable(db, timetest);
+    TableScope ts(db, "timetest", __FILE__);
     QSqlQuery q(db);
-    QVERIFY_SQL(q, exec(QLatin1String("CREATE TABLE %1 (t TIME)").arg(timetest)));
-    QVERIFY_SQL(q, exec(QLatin1String("INSERT INTO %1 VALUES ('1:2:3.666')").arg(timetest)));
+    QVERIFY_SQL(q, exec(QLatin1String("CREATE TABLE %1 (t TIME)").arg(ts.tableName())));
+    QVERIFY_SQL(q, exec(QLatin1String("INSERT INTO %1 VALUES ('1:2:3.666')").arg(ts.tableName())));
 
     QSqlTableModel timetestModel(0, db);
     timetestModel.setEditStrategy(QSqlTableModel::OnManualSubmit);
-    timetestModel.setTable(timetest);
+    timetestModel.setTable(ts.tableName());
     QVERIFY_SQL(timetestModel, select());
 
     QCOMPARE(timetestModel.record(0).field(0).value().toTime().toString("HH:mm:ss.zzz"),
@@ -3849,7 +3699,7 @@ void tst_QSqlQuery::QTBUG_5251()
     QCOMPARE(timetestModel.record(0).field(0).value().toTime().toString("HH:mm:ss.zzz"),
              u"00:12:34.500");
 
-    QVERIFY_SQL(q, exec(QLatin1String("UPDATE %1 SET t = '0:11:22.33'").arg(timetest)));
+    QVERIFY_SQL(q, exec(QLatin1String("UPDATE %1 SET t = '0:11:22.33'").arg(ts.tableName())));
     QVERIFY_SQL(timetestModel, select());
     QCOMPARE(timetestModel.record(0).field(0).value().toTime().toString("HH:mm:ss.zzz"),
              u"00:11:22.330");
@@ -3860,9 +3710,10 @@ void tst_QSqlQuery::QTBUG_6421()
     QFETCH(QString, dbName);
     QSqlDatabase db = QSqlDatabase::database(dbName);
     CHECK_DATABASE(db);
+    const QString tableName(qTableName("bug6421", __FILE__, db).toUpper());
+    TableScope ts(db, tableName);
 
     QSqlQuery q(db);
-    const QString tableName(qTableName("bug6421", __FILE__, db).toUpper());
 
     QVERIFY_SQL(q, exec(QLatin1String(
                             "create table %1(COL1 char(10), COL2 char(10), COL3 char(10))")
@@ -3890,9 +3741,8 @@ void tst_QSqlQuery::QTBUG_6618()
     if (tst_Databases::getDatabaseType(db) != QSqlDriver::MSSqlServer)
         QSKIP("Test is specific to SQL Server");
 
+    ProcScope ps(db, "tst_raiseError", __FILE__);
     QSqlQuery q(db);
-    const QString procedureName = qTableName("tst_raiseError", __FILE__, db);
-    q.exec("drop procedure " + procedureName);  // non-fatal
     QString errorString;
     for (int i = 0; i < 110; ++i)
         errorString += "reallylong";
@@ -3900,8 +3750,8 @@ void tst_QSqlQuery::QTBUG_6618()
     QVERIFY_SQL(q, exec(QLatin1String("create procedure %1 as\n"
                                       "begin\n"
                                       "    raiserror('%2', 16, 1)\n"
-                                      "end\n").arg(procedureName, errorString)));
-    q.exec(QLatin1String("{call %1}").arg(procedureName));
+                                      "end\n").arg(ps.name(), errorString)));
+    q.exec(QLatin1String("{call %1}").arg(ps.name()));
     QVERIFY(q.lastError().text().contains(errorString));
 }
 
@@ -3910,11 +3760,11 @@ void tst_QSqlQuery::QTBUG_6852()
     QFETCH(QString, dbName);
     QSqlDatabase db = QSqlDatabase::database(dbName);
     CHECK_DATABASE(db);
-    QSqlQuery q(db);
-    const QString tableName(qTableName("bug6852", __FILE__, db));
-    const QString procName(qTableName("bug6852_proc", __FILE__, db));
+    TableScope ts(db, "bug6852", __FILE__);
+    const auto &tableName = ts.tableName();
+    ProcScope ps(db, "bug6852_proc", __FILE__);
 
-    QVERIFY_SQL(q, exec("DROP PROCEDURE IF EXISTS " + procName));
+    QSqlQuery q(db);
     QVERIFY_SQL(q, exec(QLatin1String("CREATE TABLE %1(\n"
                                       "MainKey INT NOT NULL,\n"
                                       "OtherTextCol VARCHAR(45) NOT NULL,\n"
@@ -3929,9 +3779,9 @@ void tst_QSqlQuery::QTBUG_6852()
                                       "  SET @st = 'SELECT MainKey, OtherTextCol from %2';\n"
                                       "  PREPARE stmt from @st;\n"
                                       "  EXECUTE stmt;\n"
-                                      "END;").arg(procName, tableName)));
+                                      "END;").arg(ps.name(), tableName)));
 
-    QVERIFY_SQL(q, exec(QLatin1String("CALL %1()").arg(procName)));
+    QVERIFY_SQL(q, exec(QLatin1String("CALL %1()").arg(ps.name())));
     QVERIFY_SQL(q, next());
     QCOMPARE(q.value(0).toInt(), 0);
     QCOMPARE(q.value(1).toString(), QLatin1String("Disabled"));
@@ -3942,19 +3792,19 @@ void tst_QSqlQuery::QTBUG_5765()
     QFETCH(QString, dbName);
     QSqlDatabase db = QSqlDatabase::database(dbName);
     CHECK_DATABASE(db);
-    QSqlQuery q(db);
-    const QString tableName(qTableName("bug5765", __FILE__, db));
+    TableScope ts(db, "bug5765", __FILE__);
 
+    QSqlQuery q(db);
     QVERIFY_SQL(q, exec(QLatin1String("CREATE TABLE %1(testval TINYINT(1) DEFAULT 0)")
-                        .arg(tableName)));
-    q.prepare(QLatin1String("INSERT INTO %1 SET testval = :VALUE").arg(tableName));
+                        .arg(ts.tableName())));
+    q.prepare(QLatin1String("INSERT INTO %1 SET testval = :VALUE").arg(ts.tableName()));
     q.bindValue(":VALUE", 1);
     QVERIFY_SQL(q, exec());
     q.bindValue(":VALUE", 12);
     QVERIFY_SQL(q, exec());
     q.bindValue(":VALUE", 123);
     QVERIFY_SQL(q, exec());
-    QString sql = "select testval from " + tableName;
+    QString sql = "select testval from " + ts.tableName();
     QVERIFY_SQL(q, exec(sql));
     QVERIFY_SQL(q, next());
     QCOMPARE(q.value(0).toInt(), 1);
@@ -3981,9 +3831,10 @@ void tst_QSqlQuery::QTBUG_21884()
     QFETCH(QString, dbName);
     QSqlDatabase db = QSqlDatabase::database(dbName);
     CHECK_DATABASE(db);
+    TableScope ts(db, "bug21884", __FILE__);
+    const auto &tableName = ts.tableName();
 
     QSqlQuery q(db);
-    QString tableName(qTableName("bug21884", __FILE__, db));
 
     {
         const QString good[] = {
@@ -4080,10 +3931,11 @@ void tst_QSqlQuery::QTBUG_23895()
     QFETCH(QString, dbName);
     QSqlDatabase db = QSqlDatabase::database(dbName);
     CHECK_DATABASE(db);
+    TableScope ts(db, "bug23895", __FILE__);
+    const auto &tableName = ts.tableName();
 
     QSqlQuery q(db);
 
-    QString tableName(qTableName("bug23895", __FILE__, db));
     q.prepare(QLatin1String("create table %1(id integer primary key, val1 bool, val2 boolean)")
               .arg(tableName));
     QVERIFY_SQL(q, exec());
@@ -4134,19 +3986,16 @@ void tst_QSqlQuery::QTBUG_14904()
     QFETCH(QString, dbName);
     QSqlDatabase db = QSqlDatabase::database(dbName);
     CHECK_DATABASE(db);
+    TableScope ts(db, "bug14904", __FILE__);
 
     QSqlQuery q(db);
-
-    QString tableName(qTableName("bug14904", __FILE__, db));
-    tst_Databases::safeDropTable(db, tableName);
-
-    q.prepare(QLatin1String("create table %1(val1 bool)").arg(tableName));
+    q.prepare(QLatin1String("create table %1(val1 bool)").arg(ts.tableName()));
     QVERIFY_SQL(q, exec());
-    q.prepare(QLatin1String("insert into %1(val1) values(?);").arg(tableName));
+    q.prepare(QLatin1String("insert into %1(val1) values(?);").arg(ts.tableName()));
     q.addBindValue(true);
     QVERIFY_SQL(q, exec());
 
-    QString sql = "select val1 AS value1 from " + tableName;
+    QString sql = "select val1 AS value1 from " + ts.tableName();
     QVERIFY_SQL(q, exec(sql));
     QVERIFY_SQL(q, next());
 
@@ -4154,7 +4003,7 @@ void tst_QSqlQuery::QTBUG_14904()
     QCOMPARE(q.record().field(0).metaType().id(), QMetaType::Bool);
     QVERIFY(q.value(0).toBool());
 
-    sql = "select val1 AS 'value.one' from " + tableName;
+    sql = "select val1 AS 'value.one' from " + ts.tableName();
     QVERIFY_SQL(q, exec(sql));
     QVERIFY_SQL(q, next());
     QCOMPARE(q.record().indexOf("value.one"), 0);  // Was -1 before bug fix.
@@ -4168,19 +4017,17 @@ void tst_QSqlQuery::QTBUG_2192()
     QSqlDatabase db = QSqlDatabase::database(dbName);
     CHECK_DATABASE(db);
     {
-        const QString tableName(qTableName("bug2192", __FILE__, db));
-        tst_Databases::safeDropTable(db, tableName);
-
+        TableScope ts(db, "bug2192", __FILE__);
         QSqlQuery q(db);
         QVERIFY_SQL(q, exec(QLatin1String("CREATE TABLE %1 (dt %2)")
-                            .arg(tableName, tst_Databases::dateTimeTypeName(db))));
+                            .arg(ts.tableName(), tst_Databases::dateTimeTypeName(db))));
 
         QDateTime dt = QDateTime(QDate(2012, 7, 4), QTime(23, 59, 59, 999));
-        QVERIFY_SQL(q, prepare(QLatin1String("INSERT INTO %1 (dt) VALUES (?)").arg(tableName)));
+        QVERIFY_SQL(q, prepare(QLatin1String("INSERT INTO %1 (dt) VALUES (?)").arg(ts.tableName())));
         q.bindValue(0, dt);
         QVERIFY_SQL(q, exec());
 
-        QVERIFY_SQL(q, exec("SELECT dt FROM " + tableName));
+        QVERIFY_SQL(q, exec("SELECT dt FROM " + ts.tableName()));
         QVERIFY_SQL(q, next());
 
         // Check if retrieved value preserves reported precision
@@ -4197,12 +4044,10 @@ void tst_QSqlQuery::QTBUG_36211()
     QSqlDatabase db = QSqlDatabase::database(dbName);
     CHECK_DATABASE(db);
     if (tst_Databases::getDatabaseType(db) == QSqlDriver::PostgreSQL) {
-        const QString tableName(qTableName("bug36211", __FILE__, db));
-        tst_Databases::safeDropTable(db, tableName);
-
+        TableScope ts(db, "bug36211", __FILE__);
         QSqlQuery q(db);
         QVERIFY_SQL(q, exec(QLatin1String("CREATE TABLE %1 (dtwtz timestamptz, dtwotz timestamp)")
-                            .arg(tableName)));
+                            .arg(ts.tableName())));
 
 #if QT_CONFIG(timezone)
         QTimeZone l_tzBrazil("America/Sao_Paulo");
@@ -4211,7 +4056,7 @@ void tst_QSqlQuery::QTBUG_36211()
         QVERIFY(l_tzChina.isValid());
         QDateTime dt = QDateTime(QDate(2014, 10, 30), QTime(14, 12, 02, 357));
         QVERIFY_SQL(q, prepare(QLatin1String("INSERT INTO %1 (dtwtz, dtwotz) VALUES (:dt, :dt)")
-                               .arg(tableName)));
+                               .arg(ts.tableName())));
         q.bindValue(":dt", dt);
         QVERIFY_SQL(q, exec());
         q.bindValue(":dt", dt.toTimeZone(l_tzBrazil));
@@ -4219,7 +4064,7 @@ void tst_QSqlQuery::QTBUG_36211()
         q.bindValue(":dt", dt.toTimeZone(l_tzChina));
         QVERIFY_SQL(q, exec());
 
-        QVERIFY_SQL(q, exec("SELECT dtwtz, dtwotz FROM " + tableName));
+        QVERIFY_SQL(q, exec("SELECT dtwtz, dtwotz FROM " + ts.tableName()));
 
         for (int i = 0; i < 3; ++i) {
             QVERIFY_SQL(q, next());
@@ -4245,23 +4090,21 @@ void tst_QSqlQuery::QTBUG_53969()
     CHECK_DATABASE(db);
     tableValues.reserve(values.size());
     if (tst_Databases::getDatabaseType(db) == QSqlDriver::MySqlServer) {
-        const QString tableName(qTableName("bug53969", __FILE__, db));
-        tst_Databases::safeDropTable(db, tableName);
-
+        TableScope ts(db, "bug53969", __FILE__);
         QSqlQuery q(db);
         QVERIFY_SQL(q, exec(QLatin1String("CREATE TABLE %1 (id INT AUTO_INCREMENT PRIMARY KEY, "
                                           "test_number TINYINT(3) UNSIGNED)")
-                            .arg(tableName)));
+                            .arg(ts.tableName())));
 
         QVERIFY_SQL(q, prepare(QLatin1String("INSERT INTO %1 (test_number) VALUES (:value)")
-                               .arg(tableName)));
+                               .arg(ts.tableName())));
 
         for (int value : values) {
             q.bindValue(":value", value);
             QVERIFY_SQL(q, exec());
         }
 
-        QVERIFY_SQL(q, prepare("SELECT test_number FROM " + tableName));
+        QVERIFY_SQL(q, prepare("SELECT test_number FROM " + ts.tableName()));
         QVERIFY_SQL(q, exec());
 
         while (q.next()) {
@@ -4278,17 +4121,16 @@ void tst_QSqlQuery::gisPointDatatype()
     QFETCH(QString, dbName);
     QSqlDatabase db = QSqlDatabase::database(dbName);
     CHECK_DATABASE(db);
+    TableScope ts(db, "qtbug72140", __FILE__);
 
     QSqlQuery sqlQuery(db);
-    const auto tableName = qTableName("qtbug72140", __FILE__, db);
-    tst_Databases::safeDropTable(db, tableName);
     QVERIFY(sqlQuery.exec(QLatin1String(
                               "CREATE TABLE %1 (`lonlat_point` POINT NULL) ENGINE = InnoDB;")
-                          .arg(tableName)));
+                          .arg(ts.tableName())));
     QVERIFY(sqlQuery.exec(QLatin1String(
                               "INSERT INTO %1(lonlat_point) VALUES(ST_GeomFromText('POINT(1 1)'));")
-                          .arg(tableName)));
-    QVERIFY(sqlQuery.exec(QLatin1String("SELECT * FROM %1;").arg(tableName)));
+                          .arg(ts.tableName())));
+    QVERIFY(sqlQuery.exec(QLatin1String("SELECT * FROM %1;").arg(ts.tableName())));
     QCOMPARE(sqlQuery.record().field(0).metaType().id(), QMetaType::QByteArray);
     QVERIFY(sqlQuery.next());
 }
@@ -4298,13 +4140,13 @@ void tst_QSqlQuery::oraOCINumber()
     QFETCH(QString, dbName);
     QSqlDatabase db = QSqlDatabase::database(dbName);
     CHECK_DATABASE(db);
-    const QString qtest_oraOCINumber(qTableName("qtest_oraOCINumber", __FILE__, db));
+    TableScope ts(db, "qtest_oraOCINumber", __FILE__);
 
     QSqlQuery q(db);
     q.setForwardOnly(true);
     QVERIFY_SQL(q, exec(QLatin1String("create table %1 (col1 number(20), col2 number(20))")
-                        .arg(qtest_oraOCINumber)));
-    QVERIFY(q.prepare(QLatin1String("insert into %1 values (?, ?)").arg(qtest_oraOCINumber)));
+                        .arg(ts.tableName())));
+    QVERIFY(q.prepare(QLatin1String("insert into %1 values (?, ?)").arg(ts.tableName())));
 
     const QVariantList col1Values = {
         qulonglong(1), qulonglong(0), qulonglong(INT_MAX), qulonglong(UINT_MAX),
@@ -4321,7 +4163,7 @@ void tst_QSqlQuery::oraOCINumber()
     QVERIFY(q.execBatch());
     QVERIFY(q.prepare(QLatin1String(
                           "select * from %1 where col1 = :bindValue0 AND col2 = :bindValue1")
-                      .arg(qtest_oraOCINumber)));
+                      .arg(ts.tableName())));
 
     q.bindValue(":bindValue0", qulonglong(1), QSql::InOut);
     q.bindValue(":bindValue1", qlonglong(1), QSql::InOut);
@@ -4393,8 +4235,6 @@ void tst_QSqlQuery::sqlite_constraint()
     QFETCH(QString, dbName);
     QSqlDatabase db = QSqlDatabase::database(dbName);
     CHECK_DATABASE(db);
-    if (tst_Databases::getDatabaseType(db) != QSqlDriver::SQLite)
-        QSKIP("SQLite3-specific test");
 
     QSqlQuery q(db);
     const QString trigger(qTableName("test_constraint", __FILE__, db));
@@ -4414,26 +4254,25 @@ void tst_QSqlQuery::sqlite_real()
     QFETCH(QString, dbName);
     QSqlDatabase db = QSqlDatabase::database(dbName);
     CHECK_DATABASE(db);
-    const QString tableName(qTableName("sqliterealtype", __FILE__, db));
-    tst_Databases::safeDropTable(db, tableName);
+    TableScope ts(db, "sqliterealtype", __FILE__);
 
     QSqlQuery q(db);
     QVERIFY_SQL(q, exec(QLatin1String("CREATE TABLE %1 (id INTEGER, realVal REAL)")
-                        .arg(tableName)));
+                        .arg(ts.tableName())));
     QVERIFY_SQL(q, exec(QLatin1String("INSERT INTO %1 (id, realVal) VALUES (1, 2.3)")
-                        .arg(tableName)));
-    QVERIFY_SQL(q, exec("SELECT realVal FROM " + tableName));
+                        .arg(ts.tableName())));
+    QVERIFY_SQL(q, exec("SELECT realVal FROM " + ts.tableName()));
     QVERIFY(q.next());
     QCOMPARE(q.value(0).toDouble(), 2.3);
     QCOMPARE(q.record().field(0).metaType().id(), QMetaType::Double);
 
-    q.prepare(QLatin1String("INSERT INTO %1 (id, realVal) VALUES (?, ?)").arg(tableName));
+    q.prepare(QLatin1String("INSERT INTO %1 (id, realVal) VALUES (?, ?)").arg(ts.tableName()));
     QVariant var((double)5.6);
     q.addBindValue(4);
     q.addBindValue(var);
     QVERIFY_SQL(q, exec());
 
-    QVERIFY_SQL(q, exec(QLatin1String("SELECT realVal FROM %1 WHERE ID=4").arg(tableName)));
+    QVERIFY_SQL(q, exec(QLatin1String("SELECT realVal FROM %1 WHERE ID=4").arg(ts.tableName())));
     QVERIFY(q.next());
     QCOMPARE(q.value(0).toDouble(), 5.6);
 }
@@ -4448,19 +4287,17 @@ void tst_QSqlQuery::prepared_query_json_row()
         QSKIP("PostgreSQL / MySQL specific test");
     }
 
-    const QString tableName(qTableName("tableWithJsonRow", __FILE__, db));
-    tst_Databases::safeDropTable(db, tableName);
-
+    TableScope ts(db, "tableWithJsonRow", __FILE__);
     QSqlQuery q(db);
     const QLatin1String vals[] = {QLatin1String("{\"certificateNumber\": \"CERT-001\"}"),
                                   QLatin1String("{\"certificateNumber\": \"CERT-002\"}")};
-    QVERIFY_SQL(q, exec(QLatin1String("CREATE TABLE %1 (id INTEGER, value JSON)").arg(tableName)));
+    QVERIFY_SQL(q, exec(QLatin1String("CREATE TABLE %1 (id INTEGER, value JSON)").arg(ts.tableName())));
     for (const QLatin1String &json : vals) {
         QVERIFY_SQL(q, exec(QLatin1String("INSERT INTO %1 (id, value) VALUES (1, '%2')")
-                            .arg(tableName, json)));
+                            .arg(ts.tableName(), json)));
     }
 
-    QVERIFY_SQL(q, prepare(QLatin1String("SELECT id, value FROM %1 WHERE id = ?").arg(tableName)));
+    QVERIFY_SQL(q, prepare(QLatin1String("SELECT id, value FROM %1 WHERE id = ?").arg(ts.tableName())));
     q.addBindValue(1);
     QVERIFY_SQL(q, exec());
 
@@ -4485,7 +4322,8 @@ void tst_QSqlQuery::aggregateFunctionTypes()
     int countType = intType;
     // QPSQL uses LongLong for manipulation of integers
     const QSqlDriver::DbmsType dbType = tst_Databases::getDatabaseType(db);
-    if (dbType == QSqlDriver::PostgreSQL || dbType == QSqlDriver::Interbase) {
+    if (dbType == QSqlDriver::PostgreSQL || dbType == QSqlDriver::Interbase
+        || dbType == QSqlDriver::MimerSQL) {
         sumType = countType = QMetaType::LongLong;
     } else if (dbType == QSqlDriver::Oracle) {
         intType = sumType = countType = QMetaType::Double;
@@ -4494,8 +4332,8 @@ void tst_QSqlQuery::aggregateFunctionTypes()
         countType = QMetaType::LongLong;
     }
     {
-        const QString tableName(qTableName("numericFunctionsWithIntValues", __FILE__, db));
-        tst_Databases::safeDropTable(db, tableName);
+        TableScope ts(db, "numericFunctionsWithIntValues", __FILE__);
+        const auto &tableName = ts.tableName();
 
         QSqlQuery q(db);
         QVERIFY_SQL(q, exec(QLatin1String("CREATE TABLE %1 (id INTEGER)").arg(tableName)));
@@ -4544,8 +4382,8 @@ void tst_QSqlQuery::aggregateFunctionTypes()
         QCOMPARE(q.record().field(0).metaType().id(), intType);
     }
     {
-        const QString tableName(qTableName("numericFunctionsWithDoubleValues", __FILE__, db));
-        tst_Databases::safeDropTable(db, tableName);
+        TableScope ts(db, "numericFunctionsWithDoubleValues", __FILE__);
+        const auto &tableName = ts.tableName();
 
         QSqlQuery q(db);
         QVERIFY_SQL(q, exec(QLatin1String("CREATE TABLE %1 (id REAL)").arg(tableName)));
@@ -4608,8 +4446,8 @@ void tst_QSqlQuery::aggregateFunctionTypes()
         QCOMPARE(q.record().field(0).metaType().id(), QMetaType::Double);
     }
     {
-        const QString tableName(qTableName("stringFunctions", __FILE__, db));
-        tst_Databases::safeDropTable(db, tableName);
+        TableScope ts(db, "stringFunctions", __FILE__);
+        const auto &tableName = ts.tableName();
 
         QSqlQuery q(db);
         QVERIFY_SQL(q, exec(QLatin1String("CREATE TABLE %1 (id INTEGER, txt VARCHAR(50))")
@@ -4640,9 +4478,9 @@ void runIntegralTypesMysqlTest(QSqlDatabase &db, const QString &tableName, const
 {
     QList<QVariant> variantValues;
     variantValues.reserve(values.size());
+    TableScope ts(db, tableName);
 
     QSqlQuery q(db);
-    QVERIFY_SQL(q, exec("DROP TABLE IF EXISTS " + tableName));
     QVERIFY_SQL(q, exec(QLatin1String("CREATE TABLE %2 (id %1)").arg(type, tableName)));
 
     if (withPreparedStatement) {
@@ -4728,6 +4566,13 @@ void tst_QSqlQuery::integralTypesMysql()
         runIntegralTypesMysqlTest<qint64>(db, "bigIntTest", "BIGINT", withPreparedStatement);
         runIntegralTypesMysqlTest<quint64>(db, "unsignedBigIntTest", "BIGINT UNSIGNED",
                                            withPreparedStatement);
+        runIntegralTypesMysqlTest<quint64>(db, "bitmask_7", "BIT(7)", withPreparedStatement, 0,
+                                           (1LL << 7) - 1);
+        runIntegralTypesMysqlTest<quint64>(db, "bitmask_31", "BIT(31)", withPreparedStatement, 0,
+                                           (1LL << 31) - 1);
+        runIntegralTypesMysqlTest<quint64>(db, "bitmask_33", "BIT(33)", withPreparedStatement, 0,
+                                           (1LL << 33) - 1);
+        runIntegralTypesMysqlTest<quint64>(db, "bitmask_64", "BIT(64)", withPreparedStatement);
     }
 }
 
@@ -4741,16 +4586,15 @@ void tst_QSqlQuery::QTBUG_57138()
     QFETCH(QString, dbName);
     QSqlDatabase db = QSqlDatabase::database(dbName);
     CHECK_DATABASE(db);
+    TableScope ts(db, "qtbug57138", __FILE__);
 
     QSqlQuery create(db);
-    QString tableName = qTableName("qtbug57138", __FILE__, db);
-    tst_Databases::safeDropTable(db, tableName);
 
     QVERIFY_SQL(create, exec(QLatin1String(
                                  "create table %1 (id int, dt_utc datetime, dt_lt datetime, "
-                                 "dt_tzoffset datetime)").arg(tableName)));
+                                 "dt_tzoffset datetime)").arg(ts.tableName())));
     QVERIFY_SQL(create, prepare(QLatin1String("insert into %1 (id, dt_utc, dt_lt, dt_tzoffset) "
-                                              "values (?, ?, ?, ?)").arg(tableName)));
+                                              "values (?, ?, ?, ?)").arg(ts.tableName())));
 
     create.addBindValue(0);
     create.addBindValue(utc);
@@ -4760,7 +4604,7 @@ void tst_QSqlQuery::QTBUG_57138()
 
     QSqlQuery q(db);
     q.prepare(QLatin1String("SELECT dt_utc, dt_lt, dt_tzoffset FROM %1 WHERE id = ?")
-              .arg(tableName));
+              .arg(ts.tableName()));
     q.addBindValue(0);
 
     QVERIFY_SQL(q, exec());
@@ -4776,17 +4620,15 @@ void tst_QSqlQuery::QTBUG_73286()
     QFETCH(QString, dbName);
     QSqlDatabase db = QSqlDatabase::database(dbName);
     CHECK_DATABASE(db);
+    TableScope ts(db, "qtbug73286", __FILE__);
 
     QSqlQuery create(db);
-    QString tableName = qTableName("qtbug73286", __FILE__, db);
-    tst_Databases::safeDropTable(db, tableName);
-
     QVERIFY_SQL(create, exec(QLatin1String(
                                  "create table %1 (dec2 decimal(4,2), dec0 decimal(20,0), "
-                                 "dec3 decimal(20,3))").arg(tableName)));
+                                 "dec3 decimal(20,3))").arg(ts.tableName())));
     QVERIFY_SQL(create, prepare(QLatin1String(
                                     "insert into %1 (dec2, dec0, dec3) values (?, ?, ?)")
-                                .arg(tableName)));
+                                .arg(ts.tableName())));
 
     create.addBindValue("99.99");
     create.addBindValue("12345678901234567890");
@@ -4795,7 +4637,7 @@ void tst_QSqlQuery::QTBUG_73286()
     QVERIFY_SQL(create, exec());
 
     QSqlQuery q(db);
-    q.prepare("SELECT dec2, dec0, dec3 FROM " + tableName);
+    q.prepare("SELECT dec2, dec0, dec3 FROM " + ts.tableName());
     q.setNumericalPrecisionPolicy(QSql::HighPrecision);
 
     QVERIFY_SQL(q, exec());
@@ -4806,6 +4648,22 @@ void tst_QSqlQuery::QTBUG_73286()
     QCOMPARE(q.value(2).toString(), "12345678901234567.890");
 }
 
+void tst_QSqlQuery::insertVarChar1()
+{
+    QFETCH(QString, dbName);
+    QSqlDatabase db = QSqlDatabase::database(dbName);
+    CHECK_DATABASE(db);
+
+    QSqlQuery q(db);
+    TableScope ts(db, "testtable", __FILE__);
+    QVERIFY_SQL(q, exec(QLatin1String("CREATE TABLE %1 (smallcol VARCHAR(1))").arg(ts.tableName())));
+    QVERIFY_SQL(q, prepare(QLatin1String("INSERT INTO %1 (smallcol) VALUES (?)").arg(ts.tableName())));
+    QSqlField smallCol("smallcol");
+    smallCol.setValue(QVariant(QString(QChar('F'))));
+    q.bindValue(0, smallCol.value());
+    QVERIFY_SQL(q, exec());
+}
+
 void tst_QSqlQuery::dateTime_data()
 {
     if (dbs.dbNames.isEmpty())
@@ -4862,8 +4720,6 @@ void tst_QSqlQuery::dateTime_data()
         if (!db.isValid())
             continue;
         const QString tableNameTSWithTimeZone(qTableName("dateTimeTSWithTimeZone", __FILE__, db));
-        const QString tableNameTSWithLocalTimeZone(qTableName("dateTimeTSWithLocalTimeZone",
-                                                              __FILE__, db));
         const QString tableNameTS(qTableName("dateTimeTS", __FILE__, db));
         const QString tableNameDate(qTableName("dateTimeDate", __FILE__, db));
         QTest::newRow(QString(dbName + " timestamp with time zone").toLatin1())
@@ -4896,7 +4752,7 @@ void tst_QSqlQuery::dateTime()
     QFETCH(QList<QDateTime>, initialDateTimes);
     QFETCH(QList<QDateTime>, expectedDateTimes);
 
-    tst_Databases::safeDropTable(db, tableName);
+    TableScope ts(db, tableName);
 
     QSqlQuery q(db);
     QVERIFY_SQL(q, exec("CREATE TABLE " + tableName + createTableString));
@@ -4912,6 +4768,82 @@ void tst_QSqlQuery::dateTime()
     }
 }
 
+void tst_QSqlQuery::ibaseDateTimeWithTZ_data()
+{
+    if (dbs.dbNames.isEmpty())
+        QSKIP("No database drivers are available in this Qt configuration");
+
+    QTest::addColumn<QString>("dbName");
+    QTest::addColumn<QString>("tableName");
+    QTest::addColumn<QList<QDateTime> >("initialDateTimes");
+    QTest::addColumn<QList<QDateTime> >("expectedDateTimes");
+
+#if QT_CONFIG(timezone)
+    const QTimeZone afterUTCTimeZone("Asia/Hong_Kong");
+    const QTimeZone beforeUTCTimeZone("America/Los_Angeles");
+    const QDateTime dtWithAfterTZ(QDate(2015, 5, 18), QTime(4, 26, 30, 500), afterUTCTimeZone);
+    const QDateTime dtWithBeforeTZ(QDate(2015, 5, 18), QTime(4, 26, 30, 500), beforeUTCTimeZone);
+    const QTimeZone utcTimeZone("UTC");
+    const QDateTime dtWithUTCTZ(QDate(2015, 5, 18), QTime(4, 26, 30, 500), utcTimeZone);
+#endif // QT_CONFIG(timezone)
+    const QDateTime dtLocalTZ(QDateTime::currentDateTime());
+
+    const QList<QDateTime> dateTimes = {
+#if QT_CONFIG(timezone)
+        dtWithAfterTZ,
+        dtWithBeforeTZ,
+        dtWithUTCTZ,
+#endif // QT_CONFIG(timezone)
+        dtLocalTZ
+    };
+
+    for (const QString &dbName : std::as_const(dbs.dbNames)) {
+        QSqlDatabase db = QSqlDatabase::database(dbName);
+        if (!db.isValid())
+            continue;
+
+        const QString tableNameTSWithTimeZone(qTableName("dateTimeTSWithTZ", __FILE__, db));
+
+        QTest::newRow(QString(dbName + " timestamp with time zone").toLatin1())
+                        << dbName
+                        << tableNameTSWithTimeZone
+                        << dateTimes
+                        << dateTimes;
+    }
+}
+
+void tst_QSqlQuery::ibaseDateTimeWithTZ()
+{
+    QFETCH(QString, dbName);
+    QSqlDatabase db = QSqlDatabase::database(dbName);
+    CHECK_DATABASE(db);
+    if (tst_Databases::getDatabaseType(db) != QSqlDriver::Interbase)
+        QSKIP("Implemented only for Interbase");
+
+    if (tst_Databases::getIbaseEngineVersion(db).majorVersion() < 4)
+        QSKIP("Time zone support only implemented for firebird engine version 4 and greater");
+
+    QFETCH(QString, tableName);
+    TableScope ts(db, tableName);
+
+    QSqlQuery q(db);
+    QVERIFY_SQL(q, exec(QString("CREATE TABLE " + tableName + "(dt timestamp with time zone)")));
+
+    QFETCH(QList<QDateTime>, initialDateTimes);
+    QFETCH(QList<QDateTime>, expectedDateTimes);
+
+    for (const QDateTime &dt : std::as_const(initialDateTimes)) {
+        QVERIFY_SQL(q, prepare(QLatin1String("INSERT INTO %1 values(:dt)").arg(tableName)));
+        q.bindValue(":dt", dt);
+        QVERIFY_SQL(q, exec());
+    }
+    QVERIFY_SQL(q, exec("SELECT * FROM " + tableName));
+    for (const QDateTime &dt : std::as_const(expectedDateTimes)) {
+        QVERIFY(q.next());
+        QCOMPARE(q.value(0).toDateTime(), dt);
+    }
+}
+
 void tst_QSqlQuery::sqliteVirtualTable()
 {
     // Virtual tables can behave differently when it comes to prepared
@@ -4962,8 +4894,8 @@ void tst_QSqlQuery::mysql_timeType()
     QFETCH(QString, dbName);
     QSqlDatabase db = QSqlDatabase::database(dbName);
     CHECK_DATABASE(db);
-    const auto tableName = qTableName("mysqlTimeType", __FILE__, db);
-    tst_Databases::safeDropTables(db, { tableName });
+    TableScope ts(db, "mysqlTimeType", __FILE__);
+    const auto &tableName = ts.tableName();
     QSqlQuery qry(db);
     QVERIFY_SQL(qry, exec(QLatin1String("create table %1 (t time(6))").arg(tableName)));
 
@@ -5024,14 +4956,13 @@ void tst_QSqlQuery::ibaseArray()
     QSqlDatabase db = QSqlDatabase::database(dbName);
     CHECK_DATABASE(db);
 
-    const auto arrayTable = qTableName("ibasearray", __FILE__, db);
-    tst_Databases::safeDropTable(db, arrayTable);
+    TableScope ts(db, "ibasearray", __FILE__);
     QSqlQuery qry(db);
     QVERIFY_SQL(qry, exec(QLatin1String(
                               "create table %1 (intData int[0:4], longData bigint[5], "
-                              "charData varchar(255)[5], boolData boolean[2])").arg(arrayTable)));
+                              "charData varchar(255)[5], boolData boolean[2])").arg(ts.tableName())));
     QVERIFY_SQL(qry, prepare(QLatin1String("insert into %1 (intData, longData, charData, boolData)"
-                                           " values(?, ?, ?, ?)").arg(arrayTable)));
+                                           " values(?, ?, ?, ?)").arg(ts.tableName())));
     const auto intArray = QVariant{QVariantList{1, 2, 3, 4711, 815}};
     const auto charArray = QVariant{QVariantList{"AAA", "BBB", "CCC", "DDD", "EEE"}};
     const auto boolArray = QVariant{QVariantList{true, false}};
@@ -5040,7 +4971,7 @@ void tst_QSqlQuery::ibaseArray()
     qry.bindValue(2, charArray);
     qry.bindValue(3, boolArray);
     QVERIFY_SQL(qry, exec());
-    QVERIFY_SQL(qry, exec("select * from " + arrayTable));
+    QVERIFY_SQL(qry, exec("select * from " + ts.tableName()));
     QVERIFY(qry.next());
     QCOMPARE(qry.value(0).toList(), intArray.toList());
     QCOMPARE(qry.value(1).toList(), intArray.toList());
@@ -5048,6 +4979,42 @@ void tst_QSqlQuery::ibaseArray()
     QCOMPARE(qry.value(3).toList(), boolArray.toList());
 }
 
+void tst_QSqlQuery::ibaseTimeStampTzArray()
+{
+    QFETCH(QString, dbName);
+    QSqlDatabase db = QSqlDatabase::database(dbName);
+    CHECK_DATABASE(db);
+
+    if (tst_Databases::getIbaseEngineVersion(db).majorVersion() < 4)
+        QSKIP("Time zone support only implemented for firebird engine version 4 and greater");
+
+    TableScope ts(db, "ibasetstzarray", __FILE__);
+    QSqlQuery qry(db);
+    QVERIFY_SQL(qry, exec(QLatin1String(
+                              "create table %1 (timeStampData timestamp with time zone[0:4])").arg(ts.tableName())));
+    QVERIFY_SQL(qry, prepare(QLatin1String("insert into %1 (timeStampData)"
+                                           " values(?)").arg(ts.tableName())));
+#if QT_CONFIG(timezone)
+    const QDateTime dtWithAfterTZ(QDate(2015, 5, 18), QTime(4, 26, 30, 500), QTimeZone("Asia/Hong_Kong"));
+    const QDateTime dtWithBeforeTZ(QDate(2015, 5, 18), QTime(4, 26, 30, 500), QTimeZone("America/Los_Angeles"));
+    const QDateTime dtWithUTCTZ(QDate(2015, 5, 18), QTime(4, 26, 30, 500), QTimeZone("UTC"));
+    const QDateTime dtLocalTZ(QDateTime::currentDateTime());
+    const QDateTime dtWithMETTZ(QDate(2015, 5, 18), QTime(4, 26, 30, 500), QTimeZone("MET"));
+
+
+    const auto timeStampData = QVariant{QVariantList{dtWithAfterTZ,
+                                                     dtWithBeforeTZ,
+                                                     dtWithUTCTZ,
+                                                     dtLocalTZ,
+                                                     dtWithMETTZ}};
+    qry.bindValue(0, timeStampData);
+    QVERIFY_SQL(qry, exec());
+    QVERIFY_SQL(qry, exec("select * from " + ts.tableName()));
+    QVERIFY(qry.next());
+    QCOMPARE(qry.value(0).toList(), timeStampData.toList());
+#endif // QT_CONFIG(timezone)
+}
+
 void tst_QSqlQuery::ibase_executeBlock()
 {
     QFETCH(QString, dbName);
diff --git a/tests/auto/sql/kernel/qsqlrecord/tst_qsqlrecord.cpp b/tests/auto/sql/kernel/qsqlrecord/tst_qsqlrecord.cpp
index 4d41c6aa..2c9eedd8 100644
--- a/tests/auto/sql/kernel/qsqlrecord/tst_qsqlrecord.cpp
+++ b/tests/auto/sql/kernel/qsqlrecord/tst_qsqlrecord.cpp
@@ -40,6 +40,7 @@ private slots:
     void clearValues();
     void clear();
     void append();
+    void moveSemantics();
 
 private:
     std::unique_ptr<QSqlRecord> rec;
@@ -449,5 +450,24 @@ void tst_QSqlRecord::value()
     QCOMPARE(rec2.value("string").toString(), QLatin1String("Harry"));
 }
 
+void tst_QSqlRecord::moveSemantics()
+{
+    QSqlRecord rec, empty;
+    rec.append(QSqlField("string", QMetaType(QMetaType::QString)));
+    rec.setValue("string", "Harry");
+    auto moved = std::move(rec);
+    // `rec` is not partially-formed
+
+    // moving transfers state:
+    QCOMPARE(moved.value("string").toString(), QLatin1String("Harry"));
+
+    // moved-from objects can be assigned-to:
+    rec = empty;
+    QVERIFY(rec.value("string").isNull());
+
+    // moved-from object can be destroyed:
+    moved = std::move(rec);
+}
+
 QTEST_MAIN(tst_QSqlRecord)
 #include "tst_qsqlrecord.moc"
diff --git a/tests/auto/sql/kernel/qsqlthread/tst_qsqlthread.cpp b/tests/auto/sql/kernel/qsqlthread/tst_qsqlthread.cpp
index a174ea6f..7e6289e9 100644
--- a/tests/auto/sql/kernel/qsqlthread/tst_qsqlthread.cpp
+++ b/tests/auto/sql/kernel/qsqlthread/tst_qsqlthread.cpp
@@ -258,18 +258,16 @@ void tst_QSqlThread::generic_data(const QString& engine)
 
 void tst_QSqlThread::dropTestTables()
 {
-    for (int i = 0; i < dbs.dbNames.size(); ++i) {
-        QSqlDatabase db = QSqlDatabase::database(dbs.dbNames.at(i));
-        QSqlQuery q(db);
-
-        tst_Databases::safeDropTables(db, QStringList() << qtest << qTableName("qtest2", __FILE__, db) << qTableName("emptytable", __FILE__, db));
+    for (const auto &dbName : dbs.dbNames) {
+        QSqlDatabase db = QSqlDatabase::database(dbName);
+        tst_Databases::safeDropTables(db, { qtest, qTableName("qtest2", __FILE__, db), qTableName("emptytable", __FILE__, db) });
     }
 }
 
 void tst_QSqlThread::createTestTables()
 {
-    for (int i = 0; i < dbs.dbNames.size(); ++i) {
-        QSqlDatabase db = QSqlDatabase::database(dbs.dbNames.at(i));
+    for (const auto &dbName : dbs.dbNames) {
+        QSqlDatabase db = QSqlDatabase::database(dbName);
         QSqlQuery q(db);
 
         QVERIFY_SQL(q, exec("create table " + qtest
@@ -285,8 +283,8 @@ void tst_QSqlThread::createTestTables()
 
 void tst_QSqlThread::repopulateTestTables()
 {
-    for (int i = 0; i < dbs.dbNames.size(); ++i) {
-        QSqlDatabase db = QSqlDatabase::database(dbs.dbNames.at(i));
+    for (const auto &dbName : dbs.dbNames) {
+        QSqlDatabase db = QSqlDatabase::database(dbName);
         QSqlQuery q(db);
 
         QVERIFY_SQL(q, exec("delete from " + qtest));
diff --git a/tests/auto/sql/models/qsqlquerymodel/tst_qsqlquerymodel.cpp b/tests/auto/sql/models/qsqlquerymodel/tst_qsqlquerymodel.cpp
index 202fc108..a6915243 100644
--- a/tests/auto/sql/models/qsqlquerymodel/tst_qsqlquerymodel.cpp
+++ b/tests/auto/sql/models/qsqlquerymodel/tst_qsqlquerymodel.cpp
@@ -62,9 +62,9 @@ private slots:
     void task_QTBUG_4963_setHeaderDataWithProxyModel();
 
 private:
-    void generic_data(const QString &engine=QString());
-    void dropTestTables(QSqlDatabase db);
-    void createTestTables(QSqlDatabase db);
+    void generic_data(const QString &engine = QString());
+    void dropTestTables(const QSqlDatabase &db);
+    void createTestTables(const QSqlDatabase &db);
     void populateTestTables(QSqlDatabase db);
     tst_Databases dbs;
 };
@@ -73,8 +73,8 @@ private:
 class DBTestModel: public QSqlQueryModel
 {
 public:
-    DBTestModel(QObject *parent = nullptr): QSqlQueryModel(parent) {}
-    QModelIndex indexInQuery(const QModelIndex &item) const override { return QSqlQueryModel::indexInQuery(item); }
+    using QSqlQueryModel::QSqlQueryModel;
+    using QSqlQueryModel::indexInQuery;
 };
 
 tst_QSqlQueryModel::tst_QSqlQueryModel()
@@ -88,8 +88,8 @@ tst_QSqlQueryModel::~tst_QSqlQueryModel()
 void tst_QSqlQueryModel::initTestCase()
 {
     QVERIFY(dbs.open());
-    for (QStringList::ConstIterator it = dbs.dbNames.begin(); it != dbs.dbNames.end(); ++it) {
-        QSqlDatabase db = QSqlDatabase::database((*it));
+    for (const auto &dbName : std::as_const(dbs.dbNames)) {
+        QSqlDatabase db = QSqlDatabase::database(dbName);
         CHECK_DATABASE(db);
         dropTestTables(db); //in case of leftovers
         createTestTables(db);
@@ -99,15 +99,15 @@ void tst_QSqlQueryModel::initTestCase()
 
 void tst_QSqlQueryModel::cleanupTestCase()
 {
-    for (QStringList::ConstIterator it = dbs.dbNames.begin(); it != dbs.dbNames.end(); ++it) {
-        QSqlDatabase db = QSqlDatabase::database((*it));
+    for (const auto &dbName : std::as_const(dbs.dbNames)) {
+        QSqlDatabase db = QSqlDatabase::database(dbName);
         CHECK_DATABASE(db);
         dropTestTables(db);
     }
     dbs.close();
 }
 
-void tst_QSqlQueryModel::dropTestTables(QSqlDatabase db)
+void tst_QSqlQueryModel::dropTestTables(const QSqlDatabase &db)
 {
     QStringList tableNames;
     tableNames << qTableName("test", __FILE__, db)
@@ -117,7 +117,7 @@ void tst_QSqlQueryModel::dropTestTables(QSqlDatabase db)
     tst_Databases::safeDropTables(db, tableNames);
 }
 
-void tst_QSqlQueryModel::createTestTables(QSqlDatabase db)
+void tst_QSqlQueryModel::createTestTables(const QSqlDatabase &db)
 {
     dropTestTables(db);
     QSqlQuery q(db);
diff --git a/tests/auto/sql/models/qsqlrelationaldelegate/tst_qsqlrelationaldelegate.cpp b/tests/auto/sql/models/qsqlrelationaldelegate/tst_qsqlrelationaldelegate.cpp
index 1a9f8310..575b7bc4 100644
--- a/tests/auto/sql/models/qsqlrelationaldelegate/tst_qsqlrelationaldelegate.cpp
+++ b/tests/auto/sql/models/qsqlrelationaldelegate/tst_qsqlrelationaldelegate.cpp
@@ -77,16 +77,17 @@ void tst_QSqlRelationalDelegate::recreateTestTables(QSqlDatabase db)
 
 void tst_QSqlRelationalDelegate::initTestCase()
 {
-    foreach (const QString &dbname, dbs.dbNames) {
-        QSqlDatabase db=QSqlDatabase::database(dbname);
+    for (const QString &dbName : std::as_const(dbs.dbNames)) {
+        QSqlDatabase db = QSqlDatabase::database(dbName);
+        QSqlQuery q(db);
         QSqlDriver::DbmsType dbType = tst_Databases::getDatabaseType(db);
         if (dbType == QSqlDriver::Interbase) {
-            db.exec("SET DIALECT 3");
+            q.exec("SET DIALECT 3");
         } else if (dbType == QSqlDriver::MSSqlServer) {
-            db.exec("SET ANSI_DEFAULTS ON");
-            db.exec("SET IMPLICIT_TRANSACTIONS OFF");
+            q.exec("SET ANSI_DEFAULTS ON");
+            q.exec("SET IMPLICIT_TRANSACTIONS OFF");
         } else if (dbType == QSqlDriver::PostgreSQL) {
-            db.exec("set client_min_messages='warning'");
+            q.exec("set client_min_messages='warning'");
         }
         recreateTestTables(db);
     }
@@ -94,7 +95,7 @@ void tst_QSqlRelationalDelegate::initTestCase()
 
 void tst_QSqlRelationalDelegate::cleanupTestCase()
 {
-    foreach (const QString &dbName, dbs.dbNames) {
+    for (const QString &dbName : std::as_const(dbs.dbNames)) {
         QSqlDatabase db = QSqlDatabase::database(dbName);
         CHECK_DATABASE(db);
         dropTestTables(QSqlDatabase::database(dbName));
diff --git a/tests/auto/sql/models/qsqlrelationaltablemodel/tst_qsqlrelationaltablemodel.cpp b/tests/auto/sql/models/qsqlrelationaltablemodel/tst_qsqlrelationaltablemodel.cpp
index 4f824cce..3ab7fa54 100644
--- a/tests/auto/sql/models/qsqlrelationaltablemodel/tst_qsqlrelationaltablemodel.cpp
+++ b/tests/auto/sql/models/qsqlrelationaltablemodel/tst_qsqlrelationaltablemodel.cpp
@@ -7,21 +7,12 @@
 
 #include "../../kernel/qsqldatabase/tst_databases.h"
 
-QString reltest1;
-QString reltest2;
-QString reltest3;
-QString reltest4;
-QString reltest5;
-
 class tst_QSqlRelationalTableModel : public QObject
 {
     Q_OBJECT
 
 public:
-    void recreateTestTables(QSqlDatabase);
-    tst_QSqlRelationalTableModel();
-
-    tst_Databases dbs;
+    using QObject::QObject;
 
 public slots:
     void initTestCase_data();
@@ -56,25 +47,43 @@ private slots:
     void setRelation();
 
 private:
-    void dropTestTables( QSqlDatabase db );
+    void fixupTableNamesForDb(const QSqlDatabase &db);
+    void recreateTestTables(const QSqlDatabase &db);
+    void dropTestTables(const QSqlDatabase &db);
+    static QString escapeTableName(const QSqlDatabase &db, const QString &name)
+    {
+        QString _name = name;
+        const QSqlDriver::DbmsType dbType = tst_Databases::getDatabaseType(db);
+        if (dbType == QSqlDriver::Oracle ||
+            dbType == QSqlDriver::DB2)
+            _name = name.toUpper();
+        return db.driver()->escapeIdentifier(_name, QSqlDriver::TableName);
+    }
+    static QString escapeFieldName(const QSqlDatabase &db, const QString &name)
+    {
+        QString _name = name;
+        const QSqlDriver::DbmsType dbType = tst_Databases::getDatabaseType(db);
+        if (dbType == QSqlDriver::Interbase ||
+            dbType == QSqlDriver::Oracle ||
+            dbType == QSqlDriver::DB2)
+            _name = name.toUpper();
+        return db.driver()->escapeIdentifier(_name, QSqlDriver::FieldName);
+    }
+    QString reltest1;
+    QString reltest2;
+    QString reltest3;
+    QString reltest4;
+    QString reltest5;
+    tst_Databases dbs;
 };
 
-tst_QSqlRelationalTableModel::tst_QSqlRelationalTableModel()
+void tst_QSqlRelationalTableModel::fixupTableNamesForDb(const QSqlDatabase &db)
 {
-    static QSqlDatabase static_qtest_db_1 = QSqlDatabase();
-    reltest1 = qTableName("reltest1", __FILE__, static_qtest_db_1);
-
-    static QSqlDatabase static_qtest_db_2 = QSqlDatabase();
-    reltest2 = qTableName("reltest2", __FILE__, static_qtest_db_2);
-
-    static QSqlDatabase static_qtest_db_3 = QSqlDatabase();
-    reltest3 = qTableName("reltest3", __FILE__, static_qtest_db_3);
-
-    static QSqlDatabase static_qtest_db_4 = QSqlDatabase();
-    reltest4 = qTableName("reltest4", __FILE__, static_qtest_db_4);
-
-    static QSqlDatabase static_qtest_db_5 = QSqlDatabase();
-    reltest5 = qTableName("reltest5", __FILE__, static_qtest_db_5);
+    reltest1 = qTableName("reltest1", __FILE__, db);
+    reltest2 = qTableName("reltest2", __FILE__, db);
+    reltest3 = qTableName("reltest3", __FILE__, db);
+    reltest4 = qTableName("reltest4", __FILE__, db);
+    reltest5 = qTableName("reltest5", __FILE__, db);
 }
 
 void tst_QSqlRelationalTableModel::initTestCase_data()
@@ -84,7 +93,7 @@ void tst_QSqlRelationalTableModel::initTestCase_data()
         QSKIP("No database drivers are available in this Qt configuration");
 }
 
-void tst_QSqlRelationalTableModel::recreateTestTables(QSqlDatabase db)
+void tst_QSqlRelationalTableModel::recreateTestTables(const QSqlDatabase &db)
 {
     dropTestTables(db);
 
@@ -114,32 +123,36 @@ void tst_QSqlRelationalTableModel::recreateTestTables(QSqlDatabase db)
     QVERIFY_SQL( q, exec("insert into " + reltest5 + " values('herr', 'Hr')"));
     QVERIFY_SQL( q, exec("insert into " + reltest5 + " values('mister', 'Mr')"));
 
-    if (testWhiteSpaceNames(db.driverName())) {
-        const auto reltest6 = qTableName("rel test6", __FILE__, db);
-        QVERIFY_SQL( q, exec("create table " + reltest6 + " (id int not null primary key, " + db.driver()->escapeIdentifier("city key", QSqlDriver::FieldName) +
-                    " int, " + db.driver()->escapeIdentifier("extra field", QSqlDriver::FieldName) + " int)"));
-        QVERIFY_SQL( q, exec("insert into " + reltest6 + " values(1, 1,9)"));
-        QVERIFY_SQL( q, exec("insert into " + reltest6 + " values(2, 2,8)"));
+    const auto reltest6 = qTableName("rel test6", __FILE__, db);
+    const auto cityKeyStr = db.driver()->escapeIdentifier("city key", QSqlDriver::FieldName);
+    const auto extraFieldStr = db.driver()->escapeIdentifier("extra field", QSqlDriver::FieldName);
+    QVERIFY_SQL( q, exec("create table " + reltest6 + " (id int not null primary key, " + cityKeyStr +
+                " int, " + extraFieldStr + " int)"));
+    QVERIFY_SQL( q, exec("insert into " + reltest6 + " values(1, 1,9)"));
+    QVERIFY_SQL( q, exec("insert into " + reltest6 + " values(2, 2,8)"));
 
-        const auto reltest7 = qTableName("rel test7", __FILE__, db);
-        QVERIFY_SQL( q, exec("create table " + reltest7 + " (" + db.driver()->escapeIdentifier("city id", QSqlDriver::TableName) + " int not null primary key, " + db.driver()->escapeIdentifier("city name", QSqlDriver::FieldName) + " varchar(20))"));
-        QVERIFY_SQL( q, exec("insert into " + reltest7 + " values(1, 'New York')"));
-        QVERIFY_SQL( q, exec("insert into " + reltest7 + " values(2, 'Washington')"));
-    }
+    const auto reltest7 = qTableName("rel test7", __FILE__, db);
+    const auto cityIdStr = db.driver()->escapeIdentifier("city id", QSqlDriver::TableName);
+    const auto cityNameStr = db.driver()->escapeIdentifier("city name", QSqlDriver::FieldName);
+    QVERIFY_SQL( q, exec("create table " + reltest7 + " (" + cityIdStr + " int not null primary key, " +
+                         cityNameStr + " varchar(20))"));
+    QVERIFY_SQL( q, exec("insert into " + reltest7 + " values(1, 'New York')"));
+    QVERIFY_SQL( q, exec("insert into " + reltest7 + " values(2, 'Washington')"));
 }
 
 void tst_QSqlRelationalTableModel::initTestCase()
 {
-    foreach (const QString &dbname, dbs.dbNames) {
-        QSqlDatabase db=QSqlDatabase::database(dbname);
+    for (const QString &dbName : std::as_const(dbs.dbNames)) {
+        QSqlDatabase db = QSqlDatabase::database(dbName);
+        QSqlQuery q(db);
         QSqlDriver::DbmsType dbType = tst_Databases::getDatabaseType(db);
         if (dbType == QSqlDriver::Interbase) {
-            db.exec("SET DIALECT 3");
+            q.exec("SET DIALECT 3");
         } else if (dbType == QSqlDriver::MSSqlServer) {
-            db.exec("SET ANSI_DEFAULTS ON");
-            db.exec("SET IMPLICIT_TRANSACTIONS OFF");
+            q.exec("SET ANSI_DEFAULTS ON");
+            q.exec("SET IMPLICIT_TRANSACTIONS OFF");
         } else if (dbType == QSqlDriver::PostgreSQL) {
-            db.exec("set client_min_messages='warning'");
+            q.exec("set client_min_messages='warning'");
         }
         recreateTestTables(db);
     }
@@ -147,30 +160,27 @@ void tst_QSqlRelationalTableModel::initTestCase()
 
 void tst_QSqlRelationalTableModel::cleanupTestCase()
 {
-    foreach (const QString &dbName, dbs.dbNames) {
+    for (const QString &dbName : std::as_const(dbs.dbNames)) {
         QSqlDatabase db = QSqlDatabase::database(dbName);
-        CHECK_DATABASE( db );
-        dropTestTables( QSqlDatabase::database(dbName) );
+        CHECK_DATABASE(db);
+        dropTestTables(db);
     }
     dbs.close();
 }
 
-void tst_QSqlRelationalTableModel::dropTestTables( QSqlDatabase db )
+void tst_QSqlRelationalTableModel::dropTestTables(const QSqlDatabase &db)
 {
-    QStringList tableNames;
-    tableNames << reltest1
-            << reltest2
-            << reltest3
-            << reltest4
-            << reltest5
-            << qTableName("rel test6", __FILE__, db)
-            << qTableName("rel test7", __FILE__, db)
-            << qTableName("CASETEST1", db)
-            << qTableName("casetest1", db);
+    fixupTableNamesForDb(db);
+    QStringList tableNames{reltest1, reltest2, reltest3, reltest4, reltest5,
+                           qTableName("rel test6", __FILE__, db),
+                           qTableName("rel test7", __FILE__, db),
+                           qTableName("CASETEST1", __FILE__, db),
+                           qTableName("casetest1", __FILE__, db)};
     tst_Databases::safeDropTables( db, tableNames );
 
-    db.exec("DROP SCHEMA " + qTableName("QTBUG_5373", __FILE__, db) + " CASCADE");
-    db.exec("DROP SCHEMA " + qTableName("QTBUG_5373_s2", __FILE__, db) + " CASCADE");
+    QSqlQuery q(db);
+    q.exec("DROP SCHEMA " + qTableName("QTBUG_5373", __FILE__, db) + " CASCADE");
+    q.exec("DROP SCHEMA " + qTableName("QTBUG_5373_s2", __FILE__, db) + " CASCADE");
 }
 
 void tst_QSqlRelationalTableModel::init()
@@ -186,6 +196,7 @@ void tst_QSqlRelationalTableModel::data()
     QFETCH_GLOBAL(QString, dbName);
     QSqlDatabase db = QSqlDatabase::database(dbName);
     CHECK_DATABASE(db);
+    fixupTableNamesForDb(db);
 
     QSqlRelationalTableModel model(0, db);
 
@@ -227,6 +238,7 @@ void tst_QSqlRelationalTableModel::setData()
     QFETCH_GLOBAL(QString, dbName);
     QSqlDatabase db = QSqlDatabase::database(dbName);
     CHECK_DATABASE(db);
+    fixupTableNamesForDb(db);
     const QSqlDriver::DbmsType dbType = tst_Databases::getDatabaseType(db);
 
     // set the values using OnRowChange Strategy
@@ -434,6 +446,7 @@ void tst_QSqlRelationalTableModel::insertRecord()
     QFETCH_GLOBAL(QString, dbName);
     QSqlDatabase db = QSqlDatabase::database(dbName);
     CHECK_DATABASE(db);
+    fixupTableNamesForDb(db);
 
     QSqlRelationalTableModel model(0, db);
 
@@ -544,6 +557,7 @@ void tst_QSqlRelationalTableModel::insertWithStrategies()
     QFETCH_GLOBAL(QString, dbName);
     QSqlDatabase db = QSqlDatabase::database(dbName);
     CHECK_DATABASE(db);
+    fixupTableNamesForDb(db);
     const QSqlDriver::DbmsType dbType = tst_Databases::getDatabaseType(db);
 
     QSqlRelationalTableModel model(0, db);
@@ -652,56 +666,33 @@ void tst_QSqlRelationalTableModel::removeColumn()
     QFETCH_GLOBAL(QString, dbName);
     QSqlDatabase db = QSqlDatabase::database(dbName);
     CHECK_DATABASE(db);
-    recreateTestTables(db);
 
-    QSqlRelationalTableModel model(0, db);
+    for (const auto mode : {QSqlRelationalTableModel::InnerJoin, QSqlRelationalTableModel::LeftJoin}) {
+        recreateTestTables(db);
 
-    model.setTable(reltest1);
-    model.setRelation(2, QSqlRelation(reltest2, "id", "title"));
-    QVERIFY_SQL(model, select());
+        QSqlRelationalTableModel model(0, db);
 
-    QVERIFY_SQL(model, removeColumn(3));
-    QVERIFY_SQL(model, select());
+        model.setTable(reltest1);
+        model.setRelation(2, QSqlRelation(reltest2, "id", "title"));
+        model.setJoinMode(mode);
+        QVERIFY_SQL(model, select());
 
-    QCOMPARE(model.columnCount(), 3);
+        QVERIFY_SQL(model, removeColumn(3));
+        QVERIFY_SQL(model, select());
 
-    QCOMPARE(model.data(model.index(0, 0)).toInt(), 1);
-    QCOMPARE(model.data(model.index(0, 1)).toString(), QString("harry"));
-    QCOMPARE(model.data(model.index(0, 2)).toString(), QString("herr"));
-    QCOMPARE(model.data(model.index(0, 3)), QVariant());
+        QCOMPARE(model.columnCount(), 3);
 
-    // try removing more than one column
-    QVERIFY_SQL(model, removeColumns(1, 2));
-    QCOMPARE(model.columnCount(), 1);
-    QCOMPARE(model.data(model.index(0, 0)).toInt(), 1);
-    QCOMPARE(model.data(model.index(0, 1)), QVariant());
+        QCOMPARE(model.data(model.index(0, 0)).toInt(), 1);
+        QCOMPARE(model.data(model.index(0, 1)).toString(), QString("harry"));
+        QCOMPARE(model.data(model.index(0, 2)).toString(), QString("herr"));
+        QCOMPARE(model.data(model.index(0, 3)), QVariant());
 
-    // try in LeftJoin mode the same tests
-    CHECK_DATABASE(db);
-    recreateTestTables(db);
-
-    QSqlRelationalTableModel lmodel(0, db);
-
-    lmodel.setTable(reltest1);
-    lmodel.setRelation(2, QSqlRelation(reltest2, "id", "title"));
-    lmodel.setJoinMode(QSqlRelationalTableModel::LeftJoin);
-    QVERIFY_SQL(lmodel, select());
-
-    QVERIFY_SQL(lmodel, removeColumn(3));
-    QVERIFY_SQL(lmodel, select());
-
-    QCOMPARE(lmodel.columnCount(), 3);
-
-    QCOMPARE(lmodel.data(lmodel.index(0, 0)).toInt(), 1);
-    QCOMPARE(lmodel.data(lmodel.index(0, 1)).toString(), QString("harry"));
-    QCOMPARE(lmodel.data(lmodel.index(0, 2)).toString(), QString("herr"));
-    QCOMPARE(lmodel.data(lmodel.index(0, 3)), QVariant());
-
-    // try removing more than one column
-    QVERIFY_SQL(lmodel, removeColumns(1, 2));
-    QCOMPARE(lmodel.columnCount(), 1);
-    QCOMPARE(lmodel.data(lmodel.index(0, 0)).toInt(), 1);
-    QCOMPARE(lmodel.data(lmodel.index(0, 1)), QVariant());
+        // try removing more than one column
+        QVERIFY_SQL(model, removeColumns(1, 2));
+        QCOMPARE(model.columnCount(), 1);
+        QCOMPARE(model.data(model.index(0, 0)).toInt(), 1);
+        QCOMPARE(model.data(model.index(0, 1)), QVariant());
+    }
 }
 
 void tst_QSqlRelationalTableModel::filter()
@@ -736,6 +727,7 @@ void tst_QSqlRelationalTableModel::sort()
     QFETCH_GLOBAL(QString, dbName);
     QSqlDatabase db = QSqlDatabase::database(dbName);
     CHECK_DATABASE(db);
+    fixupTableNamesForDb(db);
     const QSqlDriver::DbmsType dbType = tst_Databases::getDatabaseType(db);
 
     QSqlRelationalTableModel model(0, db);
@@ -781,7 +773,7 @@ void tst_QSqlRelationalTableModel::sort()
     QStringList stringsInDatabaseOrder;
     // PostgreSQL puts the null ones (from the table with the original value) first in descending order
     // which translate to empty strings in the related table
-    if (dbType == QSqlDriver::PostgreSQL)
+    if (dbType == QSqlDriver::PostgreSQL || dbType == QSqlDriver::MimerSQL)
         stringsInDatabaseOrder << "" << "" << "mister" << "mister" << "herr" << "herr";
     else
         stringsInDatabaseOrder << "mister" << "mister" << "herr" << "herr" << "" << "";
@@ -794,7 +786,7 @@ void tst_QSqlRelationalTableModel::sort()
     // PostgreSQL puts the null ones (from the table with the original value) first in descending order
     // which translate to empty strings in the related table
     stringsInDatabaseOrder.clear();
-    if (dbType == QSqlDriver::PostgreSQL)
+    if (dbType == QSqlDriver::PostgreSQL || dbType == QSqlDriver::MimerSQL)
         stringsInDatabaseOrder << "herr" << "mister" << "mister" << "mister" << "mister" << "";
     else if (dbType != QSqlDriver::Sybase)
         stringsInDatabaseOrder << "" << "herr" << "mister" << "mister" << "mister" << "mister";
@@ -873,6 +865,7 @@ void tst_QSqlRelationalTableModel::revert()
     QFETCH_GLOBAL(QString, dbName);
     QSqlDatabase db = QSqlDatabase::database(dbName);
     CHECK_DATABASE(db);
+    fixupTableNamesForDb(db);
 
     QSqlRelationalTableModel model(0, db);
 
@@ -910,6 +903,7 @@ void tst_QSqlRelationalTableModel::clearDisplayValuesCache()
     QFETCH_GLOBAL(QString, dbName);
     QSqlDatabase db = QSqlDatabase::database(dbName);
     CHECK_DATABASE(db);
+    fixupTableNamesForDb(db);
     const QSqlDriver::DbmsType dbType = tst_Databases::getDatabaseType(db);
 
     QSqlRelationalTableModel model(0, db);
@@ -964,6 +958,7 @@ void tst_QSqlRelationalTableModel::insertRecordDuplicateFieldNames()
     QFETCH_GLOBAL(QString, dbName);
     QSqlDatabase db = QSqlDatabase::database(dbName);
     CHECK_DATABASE(db);
+    fixupTableNamesForDb(db);
     const QSqlDriver::DbmsType dbType = tst_Databases::getDatabaseType(db);
 
     QSqlRelationalTableModel model(0, db);
@@ -975,13 +970,12 @@ void tst_QSqlRelationalTableModel::insertRecordDuplicateFieldNames()
     model.setRelation(2, QSqlRelation(reltest4, "id", "name"));
     QVERIFY_SQL(model, select());
 
-    if (dbType == QSqlDriver::Interbase || dbType == QSqlDriver::Oracle || dbType == QSqlDriver::DB2) {
-        QCOMPARE(model.record(1).value((reltest4+QLatin1String("_name_2")).toUpper()).toString(),
-            QString("Trondheim"));
-    } else {
-        QCOMPARE(model.record(1).value((reltest4+QLatin1String("_name_2"))).toString(),
-            QString("Trondheim"));
-    }
+    QString reltest4Unescaped = qTableName("reltest4", __FILE__, db, false);
+    QString fieldName = reltest4Unescaped + QLatin1String("_name_2");
+    if (dbType == QSqlDriver::Oracle || dbType == QSqlDriver::DB2)
+        fieldName = fieldName.toUpper();
+    fieldName.truncate(db.driver()->maximumIdentifierLength(QSqlDriver::TableName));
+    QCOMPARE(model.record(1).value(fieldName).toString(), QLatin1String("Trondheim"));
 
     QSqlRecord rec = model.record();
     rec.setValue(0, 3);
@@ -997,10 +991,7 @@ void tst_QSqlRelationalTableModel::insertRecordDuplicateFieldNames()
     }
 
     // The duplicate field names is aliased because it's comes from the relation's display column.
-    if (dbType == QSqlDriver::Interbase || dbType == QSqlDriver::Oracle || dbType == QSqlDriver::DB2)
-        QCOMPARE(rec.fieldName(2), (reltest4+QLatin1String("_name_2")).toUpper());
-    else
-        QCOMPARE(rec.fieldName(2), reltest4+QLatin1String("_name_2"));
+    QCOMPARE(rec.fieldName(2), fieldName);
 
     QVERIFY(model.insertRecord(-1, rec));
     QCOMPARE(model.data(model.index(2, 2)).toString(), QString("Oslo"));
@@ -1013,6 +1004,7 @@ void tst_QSqlRelationalTableModel::invalidData()
     QFETCH_GLOBAL(QString, dbName);
     QSqlDatabase db = QSqlDatabase::database(dbName);
     CHECK_DATABASE(db);
+    fixupTableNamesForDb(db);
 
     QSqlRelationalTableModel model(0, db);
     model.setTable(reltest1);
@@ -1043,6 +1035,7 @@ void tst_QSqlRelationalTableModel::relationModel()
     QFETCH_GLOBAL(QString, dbName);
     QSqlDatabase db = QSqlDatabase::database(dbName);
     CHECK_DATABASE(db);
+    fixupTableNamesForDb(db);
 
     QSqlRelationalTableModel model(0, db);
     model.setTable(reltest1);
@@ -1086,60 +1079,64 @@ void tst_QSqlRelationalTableModel::casing()
     QFETCH_GLOBAL(QString, dbName);
     QSqlDatabase db = QSqlDatabase::database(dbName);
     CHECK_DATABASE(db);
+    fixupTableNamesForDb(db);
     const QSqlDriver::DbmsType dbType = tst_Databases::getDatabaseType(db);
 
-    if (dbType == QSqlDriver::Interbase || dbType == QSqlDriver::SQLite || dbType == QSqlDriver::MSSqlServer)
+    if (dbType == QSqlDriver::SQLite || dbType == QSqlDriver::MSSqlServer)
         QSKIP("The casing test for this database is irrelevant since this database does not treat different cases as separate entities");
 
     QSqlQuery q(db);
-    QVERIFY_SQL( q, exec("create table " + qTableName("CASETEST1", db).toUpper() +
+    const QString caseTestUpper = qTableName("CASETEST1", __FILE__, db).toUpper();
+    const QString caseTestLower = qTableName("casetest1", __FILE__, db);
+    tst_Databases::safeDropTables(db, {caseTestUpper, caseTestLower});
+    QVERIFY_SQL( q, exec("create table " + caseTestUpper +
                 " (id int not null primary key, name varchar(20), title_key int, another_title_key int)"));
 
-    if (!q.exec("create table " + qTableName("casetest1", db) +
+    if (!q.exec("create table " + caseTestLower +
                 " (ident int not null primary key, name varchar(20), title_key int)"))
         QSKIP("The casing test for this database is irrelevant since this database does not treat different cases as separate entities");
 
-    QVERIFY_SQL( q, exec("insert into " + qTableName("CASETEST1", db).toUpper() + " values(1, 'harry', 1, 2)"));
-    QVERIFY_SQL( q, exec("insert into " + qTableName("CASETEST1", db).toUpper() + " values(2, 'trond', 2, 1)"));
-    QVERIFY_SQL( q, exec("insert into " + qTableName("CASETEST1", db).toUpper() + " values(3, 'vohi', 1, 2)"));
-    QVERIFY_SQL( q, exec("insert into " + qTableName("CASETEST1", db).toUpper() + " values(4, 'boris', 2, 2)"));
-    QVERIFY_SQL( q, exec("insert into " + qTableName("casetest1", db) + " values(1, 'jerry', 1)"));
-    QVERIFY_SQL( q, exec("insert into " + qTableName("casetest1", db) + " values(2, 'george', 2)"));
-    QVERIFY_SQL( q, exec("insert into " + qTableName("casetest1", db) + " values(4, 'kramer', 2)"));
+    QVERIFY_SQL( q, exec("insert into " + caseTestUpper + " values(1, 'harry', 1, 2)"));
+    QVERIFY_SQL( q, exec("insert into " + caseTestUpper + " values(2, 'trond', 2, 1)"));
+    QVERIFY_SQL( q, exec("insert into " + caseTestUpper + " values(3, 'vohi', 1, 2)"));
+    QVERIFY_SQL( q, exec("insert into " + caseTestUpper + " values(4, 'boris', 2, 2)"));
+    QVERIFY_SQL( q, exec("insert into " + caseTestLower + " values(1, 'jerry', 1)"));
+    QVERIFY_SQL( q, exec("insert into " + caseTestLower + " values(2, 'george', 2)"));
+    QVERIFY_SQL( q, exec("insert into " + caseTestLower + " values(4, 'kramer', 2)"));
 
     if (dbType == QSqlDriver::Oracle) {
         //try an owner that doesn't exist
-        QSqlRecord rec = db.driver()->record("doug." + qTableName("CASETEST1", db).toUpper());
+        QSqlRecord rec = db.driver()->record("doug." + caseTestUpper);
         QCOMPARE( rec.count(), 0);
 
         //try an owner that does exist
-        rec = db.driver()->record(db.userName() + QLatin1Char('.') + qTableName("CASETEST1", db).toUpper());
+        rec = db.driver()->record(db.userName() + QLatin1Char('.') + caseTestUpper);
         QCOMPARE( rec.count(), 4);
     }
-    QSqlRecord rec = db.driver()->record(qTableName("CASETEST1", db).toUpper());
+    QSqlRecord rec = db.driver()->record(caseTestUpper);
     QCOMPARE( rec.count(), 4);
 
-    rec = db.driver()->record(qTableName("casetest1", db));
+    rec = db.driver()->record(caseTestLower);
     QCOMPARE( rec.count(), 3);
 
     QSqlTableModel upperCaseModel(0, db);
-    upperCaseModel.setTable(qTableName("CASETEST1", db).toUpper());
+    upperCaseModel.setTable(caseTestUpper);
 
-    QCOMPARE(upperCaseModel.tableName(), qTableName("CASETEST1", db).toUpper());
+    QCOMPARE(upperCaseModel.tableName(), caseTestUpper);
 
     QVERIFY_SQL(upperCaseModel, select());
 
     QCOMPARE(upperCaseModel.rowCount(), 4);
 
     QSqlTableModel lowerCaseModel(0, db);
-    lowerCaseModel.setTable(qTableName("casetest1", db));
-    QCOMPARE(lowerCaseModel.tableName(), qTableName("casetest1", db));
+    lowerCaseModel.setTable(caseTestLower);
+    QCOMPARE(lowerCaseModel.tableName(), caseTestLower);
     QVERIFY_SQL(lowerCaseModel, select());
 
     QCOMPARE(lowerCaseModel.rowCount(), 3);
 
     QSqlRelationalTableModel model(0, db);
-    model.setTable(qTableName("CASETEST1", db).toUpper());
+    model.setTable(caseTestUpper);
     model.setRelation(2, QSqlRelation(reltest2, "id", "title"));
     QVERIFY_SQL(model, select());
 
@@ -1153,7 +1150,7 @@ void tst_QSqlRelationalTableModel::escapedRelations()
     QFETCH_GLOBAL(QString, dbName);
     QSqlDatabase db = QSqlDatabase::database(dbName);
     CHECK_DATABASE(db);
-    const QSqlDriver::DbmsType dbType = tst_Databases::getDatabaseType(db);
+    fixupTableNamesForDb(db);
 
     recreateTestTables(db);
 
@@ -1161,16 +1158,7 @@ void tst_QSqlRelationalTableModel::escapedRelations()
     model.setTable(reltest1);
 
     //try with relation table name quoted
-    if (dbType == QSqlDriver::Interbase || dbType == QSqlDriver::Oracle || dbType == QSqlDriver::DB2) {
-        model.setRelation(2, QSqlRelation(db.driver()->escapeIdentifier(reltest2.toUpper(),QSqlDriver::TableName),
-                            "id",
-                            "title"));
-    } else {
-        model.setRelation(2, QSqlRelation(db.driver()->escapeIdentifier(reltest2,QSqlDriver::TableName),
-                            "id",
-                            "title"));
-
-    }
+    model.setRelation(2, QSqlRelation(escapeTableName(db, reltest2), "id", "title"));
     QVERIFY_SQL(model, select());
 
     QCOMPARE(model.data(model.index(0, 0)).toInt(), 1);
@@ -1185,16 +1173,8 @@ void tst_QSqlRelationalTableModel::escapedRelations()
     QCOMPARE(model.data(model.index(0, 2)).toString(), QString("herr"));
 
     //try with index column quoted
+    model.setRelation(2, QSqlRelation(reltest2, escapeFieldName(db, "id"), "title"));
     model.setJoinMode(QSqlRelationalTableModel::InnerJoin);
-    if (dbType == QSqlDriver::Interbase || dbType == QSqlDriver::Oracle || dbType == QSqlDriver::DB2) {
-        model.setRelation(2, QSqlRelation(reltest2,
-                            db.driver()->escapeIdentifier("id", QSqlDriver::FieldName).toUpper(),
-                            "title"));
-    } else {
-        model.setRelation(2, QSqlRelation(reltest2,
-                            db.driver()->escapeIdentifier("id", QSqlDriver::FieldName),
-                            "title"));
-    }
     QVERIFY_SQL(model, select());
 
     QCOMPARE(model.data(model.index(0, 0)).toInt(), 1);
@@ -1209,18 +1189,8 @@ void tst_QSqlRelationalTableModel::escapedRelations()
     QCOMPARE(model.data(model.index(0, 2)).toString(), QString("herr"));
 
     //try with display column quoted
+    model.setRelation(2, QSqlRelation(reltest2, "id", escapeFieldName(db, "title")));
     model.setJoinMode(QSqlRelationalTableModel::InnerJoin);
-    if (dbType == QSqlDriver::Interbase || dbType == QSqlDriver::Oracle || dbType == QSqlDriver::DB2) {
-
-        model.setRelation(2, QSqlRelation(reltest2,
-                            "id",
-                            db.driver()->escapeIdentifier("title", QSqlDriver::FieldName).toUpper()));
-    } else {
-        model.setRelation(2, QSqlRelation(reltest2,
-                            "id",
-                            db.driver()->escapeIdentifier("title", QSqlDriver::FieldName)));
-    }
-
     QVERIFY_SQL(model, select());
 
     QCOMPARE(model.data(model.index(0, 0)).toInt(), 1);
@@ -1235,16 +1205,10 @@ void tst_QSqlRelationalTableModel::escapedRelations()
     QCOMPARE(model.data(model.index(0, 2)).toString(), QString("herr"));
 
     //try with tablename and index and display columns quoted in the relation
+    model.setRelation(2, QSqlRelation(escapeTableName(db, reltest2),
+                                      escapeFieldName(db, "id"),
+                                      escapeFieldName(db, "title")));
     model.setJoinMode(QSqlRelationalTableModel::InnerJoin);
-    if (dbType == QSqlDriver::Interbase || dbType == QSqlDriver::Oracle || dbType == QSqlDriver::DB2) {
-        model.setRelation(2, QSqlRelation(reltest2,
-                            "id",
-                            db.driver()->escapeIdentifier("title", QSqlDriver::FieldName).toUpper()));
-    } else {
-        model.setRelation(2, QSqlRelation(reltest2,
-                            "id",
-                            db.driver()->escapeIdentifier("title", QSqlDriver::FieldName)));
-    }
     QVERIFY_SQL(model, select());
 
     QCOMPARE(model.data(model.index(0, 0)).toInt(), 1);
@@ -1264,17 +1228,13 @@ void tst_QSqlRelationalTableModel::escapedTableName()
     QFETCH_GLOBAL(QString, dbName);
     QSqlDatabase db = QSqlDatabase::database(dbName);
     CHECK_DATABASE(db);
-    const QSqlDriver::DbmsType dbType = tst_Databases::getDatabaseType(db);
+    fixupTableNamesForDb(db);
 
     // set the values using OnRowChange Strategy with an escaped tablename
     {
         QSqlRelationalTableModel model(0, db);
 
-        if (dbType == QSqlDriver::Interbase || dbType == QSqlDriver::Oracle || dbType == QSqlDriver::DB2) {
-            model.setTable(db.driver()->escapeIdentifier(reltest1.toUpper(), QSqlDriver::TableName));
-        } else {
-            model.setTable(db.driver()->escapeIdentifier(reltest1, QSqlDriver::TableName));
-        }
+        model.setTable(escapeTableName(db, reltest1));
         model.setSort(0, Qt::AscendingOrder);
         model.setRelation(2, QSqlRelation(reltest2, "id", "title"));
         QVERIFY_SQL(model, select());
@@ -1317,11 +1277,7 @@ void tst_QSqlRelationalTableModel::escapedTableName()
     {
         QSqlRelationalTableModel model(0, db);
 
-        if (dbType == QSqlDriver::Interbase || dbType == QSqlDriver::Oracle || dbType == QSqlDriver::DB2) {
-            model.setTable(db.driver()->escapeIdentifier(reltest1.toUpper(), QSqlDriver::TableName));
-        } else {
-            model.setTable(db.driver()->escapeIdentifier(reltest1, QSqlDriver::TableName));
-        }
+        model.setTable(escapeTableName(db, reltest1));
         model.setSort(0, Qt::AscendingOrder);
         model.setRelation(2, QSqlRelation(reltest2, "id", "title"));
         model.setJoinMode(QSqlRelationalTableModel::LeftJoin);
@@ -1368,9 +1324,8 @@ void tst_QSqlRelationalTableModel::whiteSpaceInIdentifiers()
     QFETCH_GLOBAL(QString, dbName);
     QSqlDatabase db = QSqlDatabase::database(dbName);
     CHECK_DATABASE(db);
+    fixupTableNamesForDb(db);
 
-    if (!testWhiteSpaceNames(db.driverName()))
-        QSKIP("White space test irrelevant for driver");
     QSqlRelationalTableModel model(0, db);
     model.setTable(qTableName("rel test6", __FILE__, db));
     model.setSort(0, Qt::DescendingOrder);
@@ -1453,6 +1408,7 @@ void tst_QSqlRelationalTableModel::psqlSchemaTest()
     QFETCH_GLOBAL(QString, dbName);
     QSqlDatabase db = QSqlDatabase::database(dbName);
     CHECK_DATABASE(db);
+    fixupTableNamesForDb(db);
     QSqlDriver::DbmsType dbType = tst_Databases::getDatabaseType(db);
 
     if (dbType != QSqlDriver::PostgreSQL)
@@ -1480,6 +1436,7 @@ void tst_QSqlRelationalTableModel::selectAfterUpdate()
     QFETCH_GLOBAL(QString, dbName);
     QSqlDatabase db = QSqlDatabase::database(dbName);
     CHECK_DATABASE(db);
+    fixupTableNamesForDb(db);
 
     QSqlRelationalTableModel model(0, db);
     model.setTable(reltest1);
@@ -1505,6 +1462,7 @@ void tst_QSqlRelationalTableModel::relationOnFirstColumn()
     QFETCH_GLOBAL(QString, dbName);
     QSqlDatabase db = QSqlDatabase::database(dbName);
     CHECK_DATABASE(db);
+    fixupTableNamesForDb(db);
 
     QString testTable1 = qTableName("QTBUG_20038_test1", __FILE__, db);
     QString testTable2 = qTableName("QTBUG_20038_test2", __FILE__, db);
@@ -1519,7 +1477,14 @@ void tst_QSqlRelationalTableModel::relationOnFirstColumn()
     QVERIFY_SQL(q, exec("INSERT INTO " + testTable1 + " (id1, val1) VALUES(3, 30);"));
 
     //prepare test2 table
-    QVERIFY_SQL(q, exec("CREATE TABLE " + testTable2 + " (id INTEGER PRIMARY KEY, name TEXT);"));
+    if (tst_Databases::getDatabaseType(db) == QSqlDriver::MimerSQL) {
+        QVERIFY_SQL(q,
+                    exec("CREATE TABLE " + testTable2
+                         + " (id INTEGER PRIMARY KEY, name NVARCHAR(100));"));
+    } else {
+        QVERIFY_SQL(q,
+                    exec("CREATE TABLE " + testTable2 + " (id INTEGER PRIMARY KEY, name VARCHAR(100));"));
+    }
     QVERIFY_SQL(q, exec("DELETE FROM " + testTable2 + QLatin1Char(';')));
     QVERIFY_SQL(q, exec("INSERT INTO " + testTable2 + " (id, name) VALUES (10, 'Hervanta');"));
     QVERIFY_SQL(q, exec("INSERT INTO " + testTable2 + " (id, name) VALUES (20, 'Keskusta');"));
diff --git a/tests/auto/sql/models/qsqltablemodel/tst_qsqltablemodel.cpp b/tests/auto/sql/models/qsqltablemodel/tst_qsqltablemodel.cpp
index ece99efa..e75f17ed 100644
--- a/tests/auto/sql/models/qsqltablemodel/tst_qsqltablemodel.cpp
+++ b/tests/auto/sql/models/qsqltablemodel/tst_qsqltablemodel.cpp
@@ -155,18 +155,15 @@ void tst_QSqlTableModel::dropTestTables()
         if (dbType == QSqlDriver::PostgreSQL)
             QVERIFY_SQL( q, exec("set client_min_messages='warning'"));
 
-        QStringList tableNames;
-        tableNames << qTableName("test1", __FILE__, db)
-                   << qTableName("test2", __FILE__, db)
-                   << qTableName("test3", __FILE__, db)
-                   << qTableName("test4", __FILE__, db)
-                   << qTableName("emptytable", __FILE__, db)
-                   << qTableName("bigtable", __FILE__, db)
-                   << qTableName("foo", __FILE__, db)
-                   << qTableName("pktest", __FILE__, db);
-        if (testWhiteSpaceNames(db.driverName()))
-            tableNames << qTableName("qtestw hitespace", db);
-
+        QStringList tableNames{qTableName("test1", __FILE__, db),
+                               qTableName("test2", __FILE__, db),
+                               qTableName("test3", __FILE__, db),
+                               qTableName("test4", __FILE__, db),
+                               qTableName("emptytable", __FILE__, db),
+                               qTableName("bigtable", __FILE__, db),
+                               qTableName("foo", __FILE__, db),
+                               qTableName("pktest", __FILE__, db),
+                               qTableName("qtestw hitespace", __FILE__, db)};
         tst_Databases::safeDropTables(db, tableNames);
 
         if (db.driverName().startsWith("QPSQL")) {
@@ -196,10 +193,8 @@ void tst_QSqlTableModel::createTestTables()
 
         QVERIFY_SQL(q, exec("create table " + qTableName("emptytable", __FILE__, db) + "(id int)"));
 
-        if (testWhiteSpaceNames(db.driverName())) {
-            QString qry = "create table " + qTableName("qtestw hitespace", db) + " ("+ db.driver()->escapeIdentifier("a field", QSqlDriver::FieldName) + " int)";
-            QVERIFY_SQL( q, exec(qry));
-        }
+        const auto fieldStr = db.driver()->escapeIdentifier("a field", QSqlDriver::FieldName);
+        QVERIFY_SQL(q, exec("create table " + qTableName("qtestw hitespace", __FILE__, db) + " ("+ fieldStr + " int)"));
 
         QVERIFY_SQL(q, exec("create table " + qTableName("pktest", __FILE__, db) + "(id int not null primary key, a varchar(20))"));
     }
@@ -430,8 +425,7 @@ void tst_QSqlTableModel::insertColumns()
 {
     // Just like the select test, with extra stuff
     QFETCH(QString, dbName);
-    QFETCH(int, submitpolicy_i);
-    QSqlTableModel::EditStrategy submitpolicy = (QSqlTableModel::EditStrategy) submitpolicy_i;
+    QFETCH(QSqlTableModel::EditStrategy, submitpolicy);
     QSqlDatabase db = QSqlDatabase::database(dbName);
     CHECK_DATABASE(db);
     const auto test = qTableName("test1", __FILE__, db);
@@ -581,13 +575,13 @@ void tst_QSqlTableModel::setRecord()
     CHECK_DATABASE(db);
     const auto test3 = qTableName("test3", __FILE__, db);
 
-    QList<QSqlTableModel::EditStrategy> policies = QList<QSqlTableModel::EditStrategy>() << QSqlTableModel::OnFieldChange << QSqlTableModel::OnRowChange << QSqlTableModel::OnManualSubmit;
+    const auto policies = { QSqlTableModel::OnFieldChange, QSqlTableModel::OnRowChange, QSqlTableModel::OnManualSubmit };
 
     QString Xsuffix;
-    foreach( QSqlTableModel::EditStrategy submitpolicy, policies) {
+    for (QSqlTableModel::EditStrategy submitpolicy : policies) {
 
         QSqlTableModel model(0, db);
-        model.setEditStrategy((QSqlTableModel::EditStrategy)submitpolicy);
+        model.setEditStrategy(submitpolicy);
         model.setTable(test3);
         model.setSort(0, Qt::AscendingOrder);
         QVERIFY_SQL(model, select());
@@ -601,7 +595,7 @@ void tst_QSqlTableModel::setRecord()
             QVERIFY(model.setRecord(i, rec));
 
             // dataChanged() emitted by setData() for each *changed* column
-            if ((QSqlTableModel::EditStrategy)submitpolicy == QSqlTableModel::OnManualSubmit) {
+            if (submitpolicy == QSqlTableModel::OnManualSubmit) {
                 QCOMPARE(spy.size(), 2);
                 QCOMPARE(spy.at(0).size(), 2);
                 QCOMPARE(qvariant_cast<QModelIndex>(spy.at(0).at(0)), model.index(i, 1));
@@ -609,10 +603,10 @@ void tst_QSqlTableModel::setRecord()
                 QCOMPARE(qvariant_cast<QModelIndex>(spy.at(1).at(0)), model.index(i, 2));
                 QCOMPARE(qvariant_cast<QModelIndex>(spy.at(1).at(1)), model.index(i, 2));
                 QVERIFY(model.submitAll());
-            } else if ((QSqlTableModel::EditStrategy)submitpolicy == QSqlTableModel::OnRowChange && i == model.rowCount() -1)
+            } else if (submitpolicy == QSqlTableModel::OnRowChange && i == model.rowCount() -1)
                 model.submit();
             else {
-                if ((QSqlTableModel::EditStrategy)submitpolicy != QSqlTableModel::OnManualSubmit)
+                if (submitpolicy != QSqlTableModel::OnManualSubmit)
                     // dataChanged() also emitted by selectRow()
                     QCOMPARE(spy.size(), 3);
                 else
@@ -714,8 +708,7 @@ void tst_QSqlTableModel::recordReimpl()
 void tst_QSqlTableModel::insertRow()
 {
     QFETCH(QString, dbName);
-    QFETCH(int, submitpolicy_i);
-    QSqlTableModel::EditStrategy submitpolicy = (QSqlTableModel::EditStrategy) submitpolicy_i;
+    QFETCH(QSqlTableModel::EditStrategy, submitpolicy);
     QSqlDatabase db = QSqlDatabase::database(dbName);
     CHECK_DATABASE(db);
     const auto test = qTableName("test1", __FILE__, db);
@@ -824,8 +817,7 @@ void tst_QSqlTableModel::insertRowFailure()
 {
     QFETCH(QString, dbName);
     QSqlDatabase db = QSqlDatabase::database(dbName);
-    QFETCH(int, submitpolicy_i);
-    QSqlTableModel::EditStrategy submitpolicy = (QSqlTableModel::EditStrategy) submitpolicy_i;
+    QFETCH(QSqlTableModel::EditStrategy, submitpolicy);
     CHECK_DATABASE(db);
 
     QSqlTableModel model(0, db);
@@ -974,8 +966,7 @@ void tst_QSqlTableModel::insertMultiRecords()
 void tst_QSqlTableModel::insertWithAutoColumn()
 {
     QFETCH(QString, dbName);
-    QFETCH(int, submitpolicy_i);
-    QSqlTableModel::EditStrategy submitpolicy = (QSqlTableModel::EditStrategy) submitpolicy_i;
+    QFETCH(QSqlTableModel::EditStrategy, submitpolicy);
     QSqlDatabase db = QSqlDatabase::database(dbName);
     CHECK_DATABASE(db);
 
@@ -1197,8 +1188,7 @@ void tst_QSqlTableModel::removeRows()
 void tst_QSqlTableModel::removeInsertedRow()
 {
     QFETCH(QString, dbName);
-    QFETCH(int, submitpolicy_i);
-    QSqlTableModel::EditStrategy submitpolicy = (QSqlTableModel::EditStrategy) submitpolicy_i;
+    QFETCH(QSqlTableModel::EditStrategy, submitpolicy);
     QSqlDatabase db = QSqlDatabase::database(dbName);
     CHECK_DATABASE(db);
     const auto test = qTableName("test1", __FILE__, db);
@@ -1382,8 +1372,7 @@ void tst_QSqlTableModel::removeInsertedRows()
 void tst_QSqlTableModel::revert()
 {
     QFETCH(QString, dbName);
-    QFETCH(int, submitpolicy_i);
-    QSqlTableModel::EditStrategy submitpolicy = (QSqlTableModel::EditStrategy) submitpolicy_i;
+    QFETCH(QSqlTableModel::EditStrategy, submitpolicy);
     QSqlDatabase db = QSqlDatabase::database(dbName);
     CHECK_DATABASE(db);
 
@@ -1459,8 +1448,7 @@ void tst_QSqlTableModel::revert()
 void tst_QSqlTableModel::isDirty()
 {
     QFETCH(QString, dbName);
-    QFETCH(int, submitpolicy_i);
-    QSqlTableModel::EditStrategy submitpolicy = (QSqlTableModel::EditStrategy) submitpolicy_i;
+    QFETCH(QSqlTableModel::EditStrategy, submitpolicy);
     QSqlDatabase db = QSqlDatabase::database(dbName);
     CHECK_DATABASE(db);
     const auto test = qTableName("test1", __FILE__, db);
@@ -1665,11 +1653,11 @@ void tst_QSqlTableModel::emptyTable()
     QCOMPARE(model.columnCount(), 1);
 
     // QTBUG-29108: check correct horizontal header for empty query with pending insert
-    QCOMPARE(model.headerData(0, Qt::Horizontal).toString(), QString("id"));
+    QCOMPARE(model.headerData(0, Qt::Horizontal).toString().toLower(), QString("id"));
     model.setEditStrategy(QSqlTableModel::OnManualSubmit);
     model.insertRow(0);
     QCOMPARE(model.rowCount(), 1);
-    QCOMPARE(model.headerData(0, Qt::Horizontal).toString(), QString("id"));
+    QCOMPARE(model.headerData(0, Qt::Horizontal).toString().toLower(), QString("id"));
     model.revertAll();
 }
 
@@ -1700,10 +1688,7 @@ void tst_QSqlTableModel::whitespaceInIdentifiers()
     QSqlDatabase db = QSqlDatabase::database(dbName);
     CHECK_DATABASE(db);
 
-    if (!testWhiteSpaceNames(db.driverName()))
-        QSKIP("DBMS doesn't support whitespaces in identifiers");
-
-    QString tableName = qTableName("qtestw hitespace", db);
+    QString tableName = qTableName("qtestw hitespace", __FILE__, db);
 
     QSqlTableModel model(0, db);
     model.setTable(tableName);
@@ -1947,14 +1932,16 @@ void tst_QSqlTableModel::sqlite_attachedDatabase()
     attachedDb.setDatabaseName(db.databaseName()+QLatin1String("attached.dat"));
     QVERIFY_SQL(attachedDb, open());
     QSqlQuery q(attachedDb);
-    tst_Databases::safeDropTables(attachedDb, QStringList() << "atest" << "atest2");
+    TableScope ts(db, "atest", __FILE__);
+    TableScope tsAttached(attachedDb, "atest", __FILE__);
+    TableScope tsAttached2(attachedDb, "atest2", __FILE__);
+
     QVERIFY_SQL( q, exec("CREATE TABLE atest(id int, text varchar(20))"));
     QVERIFY_SQL( q, exec("CREATE TABLE atest2(id int, text varchar(20))"));
     QVERIFY_SQL( q, exec("INSERT INTO atest VALUES(1, 'attached-atest')"));
     QVERIFY_SQL( q, exec("INSERT INTO atest2 VALUES(2, 'attached-atest2')"));
 
     QSqlQuery q2(db);
-    tst_Databases::safeDropTable(db, "atest");
     QVERIFY_SQL(q2, exec("CREATE TABLE atest(id int, text varchar(20))"));
     QVERIFY_SQL(q2, exec("INSERT INTO atest VALUES(3, 'main')"));
     QVERIFY_SQL(q2, exec("ATTACH DATABASE \""+attachedDb.databaseName()+"\" as adb"));
@@ -2145,29 +2132,27 @@ void tst_QSqlTableModel::sqlite_selectFromIdentifierWithDot()
 {
     QFETCH(QString, dbName);
     QSqlDatabase db = QSqlDatabase::database(dbName);
+    TableScope fieldDot(db, "fieldDot", __FILE__);
+    TableScope tableDot(db, u'[' + qTableName("table.dot", __FILE__, db) + u']');
     CHECK_DATABASE(db);
     {
-        const auto fieldDot = qTableName("fieldDot", __FILE__, db);
-        tst_Databases::safeDropTable(db, fieldDot);
         QSqlQuery qry(db);
-        QVERIFY_SQL(qry, exec("create table " + fieldDot + " (id int primary key, "
+        QVERIFY_SQL(qry, exec("create table " + fieldDot.tableName() + " (id int primary key, "
                               "\"person.firstname\" varchar(20))"));
-        QVERIFY_SQL(qry, exec("insert into " + fieldDot + " values(1, 'Andy')"));
+        QVERIFY_SQL(qry, exec("insert into " + fieldDot.tableName() + " values(1, 'Andy')"));
         QSqlTableModel model(0, db);
-        model.setTable(fieldDot);
+        model.setTable(fieldDot.tableName());
         QVERIFY_SQL(model, select());
         QCOMPARE(model.data(model.index(0, 0)).toInt(), 1);
         QCOMPARE(model.data(model.index(0, 1)).toString(), QString("Andy"));
     }
-    const auto tableDot = QLatin1Char('[') + qTableName("table.dot", __FILE__, db) + QLatin1Char(']');
     {
-        tst_Databases::safeDropTable(db, tableDot);
         QSqlQuery qry(db);
-        QVERIFY_SQL(qry, exec("create table " + tableDot + " (id int primary key, "
+        QVERIFY_SQL(qry, exec("create table " + tableDot.tableName() + " (id int primary key, "
                               "\"person.firstname\" varchar(20))"));
-        QVERIFY_SQL(qry, exec("insert into " + tableDot + " values(1, 'Andy')"));
+        QVERIFY_SQL(qry, exec("insert into " + tableDot.tableName() + " values(1, 'Andy')"));
         QSqlTableModel model(0, db);
-        model.setTable(tableDot);
+        model.setTable(tableDot.tableName());
         QVERIFY_SQL(model, select());
         QCOMPARE(model.data(model.index(0, 0)).toInt(), 1);
         QCOMPARE(model.data(model.index(0, 1)).toString(), QString("Andy"));
@@ -2179,7 +2164,7 @@ void tst_QSqlTableModel::sqlite_selectFromIdentifierWithDot()
         QSqlQuery qry(attachedDb);
         QVERIFY_SQL(qry, exec(QString("attach '%1' AS 'attached'").arg(db.databaseName())));
         QSqlTableModel model(0, attachedDb);
-        model.setTable(QString("attached.%1").arg(tableDot));
+        model.setTable(QString("attached.%1").arg(tableDot.tableName()));
         QVERIFY_SQL(model, select());
         QCOMPARE(model.data(model.index(0, 0)).toInt(), 1);
         QCOMPARE(model.data(model.index(0, 1)).toString(), QString("Andy"));
diff --git a/tests/auto/testlib/CMakeLists.txt b/tests/auto/testlib/CMakeLists.txt
index 1f8438fa..35a26a8e 100644
--- a/tests/auto/testlib/CMakeLists.txt
+++ b/tests/auto/testlib/CMakeLists.txt
@@ -2,6 +2,7 @@
 # SPDX-License-Identifier: BSD-3-Clause
 
 add_subdirectory(qsignalspy)
+add_subdirectory(tostring)
 
 # QTBUG-88507
 if(QT_FEATURE_process AND NOT ANDROID)
diff --git a/tests/auto/testlib/selftests/benchlibcallgrind/tst_benchlibcallgrind.cpp b/tests/auto/testlib/selftests/benchlibcallgrind/tst_benchlibcallgrind.cpp
index 8ced6f28..b175998e 100644
--- a/tests/auto/testlib/selftests/benchlibcallgrind/tst_benchlibcallgrind.cpp
+++ b/tests/auto/testlib/selftests/benchlibcallgrind/tst_benchlibcallgrind.cpp
@@ -22,7 +22,7 @@ private slots:
 void tst_BenchlibCallgrind::failInChildProcess()
 {
 #ifdef HAVE_VALGRIND_H
-    static double f = 1.0;
+    [[maybe_unused]] static double f = 1.0;
     QBENCHMARK {
         for (int i = 0; i < 1000000; ++i) {
             f *= 1.1;
@@ -63,7 +63,7 @@ QTEST_MAIN_WRAPPER(tst_BenchlibCallgrind,
                              || qstrcmp(arg, "-callgrind") == 0;
                      }) == args.end()) {
         args.push_back("-callgrind");
-        argc = args.size();
+        argc = int(args.size());
         argv = const_cast<char**>(&args[0]);
     }
     QTEST_MAIN_SETUP())
diff --git a/tests/auto/testlib/selftests/benchlibcounting/tst_benchlibcounting.cpp b/tests/auto/testlib/selftests/benchlibcounting/tst_benchlibcounting.cpp
index 33012ab5..2ccd374c 100644
--- a/tests/auto/testlib/selftests/benchlibcounting/tst_benchlibcounting.cpp
+++ b/tests/auto/testlib/selftests/benchlibcounting/tst_benchlibcounting.cpp
@@ -37,7 +37,7 @@ void tst_BenchlibCounting::failingBenchmark()
 QTEST_MAIN_WRAPPER(tst_BenchlibCounting,
     std::vector<const char*> args(argv, argv + argc);
     args.push_back("-eventcounter");
-    argc = args.size();
+    argc = int(args.size());
     argv = const_cast<char**>(&args[0]);
     QTEST_MAIN_SETUP())
 
diff --git a/tests/auto/testlib/selftests/benchlibeventcounter/tst_benchlibeventcounter.cpp b/tests/auto/testlib/selftests/benchlibeventcounter/tst_benchlibeventcounter.cpp
index 7159e487..8397081a 100644
--- a/tests/auto/testlib/selftests/benchlibeventcounter/tst_benchlibeventcounter.cpp
+++ b/tests/auto/testlib/selftests/benchlibeventcounter/tst_benchlibeventcounter.cpp
@@ -73,7 +73,7 @@ int main(int argc, char** argv)
 {
     std::vector<const char*> args(argv, argv + argc);
     args.push_back("-eventcounter");
-    argc = args.size();
+    argc = int(args.size());
     argv = const_cast<char**>(&args[0]);
 
     TestEventDispatcher dispatcher;
diff --git a/tests/auto/testlib/selftests/benchlibtickcounter/tst_benchlibtickcounter.cpp b/tests/auto/testlib/selftests/benchlibtickcounter/tst_benchlibtickcounter.cpp
index 6b7068f9..55fe68f2 100644
--- a/tests/auto/testlib/selftests/benchlibtickcounter/tst_benchlibtickcounter.cpp
+++ b/tests/auto/testlib/selftests/benchlibtickcounter/tst_benchlibtickcounter.cpp
@@ -40,7 +40,7 @@ void tst_BenchlibTickCounter::threeBillionTicks()
 QTEST_MAIN_WRAPPER(tst_BenchlibTickCounter,
     std::vector<const char*> args(argv, argv + argc);
     args.push_back("-tickcounter");
-    argc = args.size();
+    argc = int(args.size());
     argv = const_cast<char**>(&args[0]);
     QTEST_MAIN_SETUP())
 
diff --git a/tests/auto/testlib/selftests/crashes/tst_crashes.cpp b/tests/auto/testlib/selftests/crashes/tst_crashes.cpp
index 38ed27d3..173b8a4a 100644
--- a/tests/auto/testlib/selftests/crashes/tst_crashes.cpp
+++ b/tests/auto/testlib/selftests/crashes/tst_crashes.cpp
@@ -38,7 +38,11 @@ void tst_Crashes::crash()
         rather than SIGSEGV).
     */
     int *i = 0;
+
+QT_WARNING_PUSH
+QT_WARNING_DISABLE_GCC("-Warray-bounds")
     i[1] = 1;
+QT_WARNING_POP
 }
 
 QTEST_MAIN(tst_Crashes)
diff --git a/tests/auto/testlib/selftests/eventloop/tst_eventloop.cpp b/tests/auto/testlib/selftests/eventloop/tst_eventloop.cpp
index 202a8b77..39cd1d1a 100644
--- a/tests/auto/testlib/selftests/eventloop/tst_eventloop.cpp
+++ b/tests/auto/testlib/selftests/eventloop/tst_eventloop.cpp
@@ -5,6 +5,8 @@
 #include <QTestEventLoop>
 #include <QtCore/QTimer>
 
+using namespace std::chrono_literals;
+
 // Tests for QTestEventLoop (and some QTRY_* details)
 class tst_EventLoop: public QObject
 {
@@ -51,7 +53,7 @@ void tst_EventLoop::cleanup()
     {
         DeferredFlag flag;
         auto &loop = QTestEventLoop::instance();
-        loop.enterLoopMSecs(100);
+        loop.enterLoop(100ms);
         QVERIFY2(loop.timeout(), "QTestEventLoop exited prematurely in cleanup()");
         QVERIFY(flag);
     }
@@ -81,7 +83,7 @@ void tst_EventLoop::pass()
     {
         DeferredFlag flag;
         auto &loop = QTestEventLoop::instance();
-        loop.enterLoopMSecs(100);
+        loop.enterLoop(100ms);
         QVERIFY(loop.timeout());
         QVERIFY(flag);
     }
@@ -92,10 +94,10 @@ void tst_EventLoop::pass()
     DeferredFlag flag;
     QTestEventLoop loop(this);
     QVERIFY(!flag);
-    loop.enterLoopMSecs(1);
+    loop.enterLoop(1ms);
     QVERIFY(loop.timeout());
     QVERIFY(!flag);
-    loop.enterLoopMSecs(100);
+    loop.enterLoop(100ms);
     QVERIFY(loop.timeout());
     QVERIFY(flag);
 }
diff --git a/tests/auto/testlib/selftests/expected_extendedcompare.junitxml b/tests/auto/testlib/selftests/expected_extendedcompare.junitxml
index cbde2e31..b8407738 100644
--- a/tests/auto/testlib/selftests/expected_extendedcompare.junitxml
+++ b/tests/auto/testlib/selftests/expected_extendedcompare.junitxml
@@ -8,518 +8,518 @@
   <testcase name="initTestCase" classname="tst_ExtendedCompare" time="@TEST_DURATION@"/>
   <testcase name="compareInts(EQ:left == right)" classname="tst_ExtendedCompare" time="@TEST_DURATION@"/>
   <testcase name="compareInts(EQ:left &lt; right)" classname="tst_ExtendedCompare" time="@TEST_DURATION@">
-    <failure type="fail" message="Left value is expected to be equal to right value, but is not">
-      <![CDATA[   Left   (lhs): 1
-   Right  (rhs): 2]]>
+    <failure type="fail" message="The computed value is expected to be equal to the baseline, but is not">
+      <![CDATA[   Computed (lhs): 1
+   Baseline (rhs): 2]]>
     </failure>
   </testcase>
   <testcase name="compareInts(EQ:left &gt; right)" classname="tst_ExtendedCompare" time="@TEST_DURATION@">
-    <failure type="fail" message="Left value is expected to be equal to right value, but is not">
-      <![CDATA[   Left   (lhs): 2
-   Right  (rhs): 1]]>
+    <failure type="fail" message="The computed value is expected to be equal to the baseline, but is not">
+      <![CDATA[   Computed (lhs): 2
+   Baseline (rhs): 1]]>
     </failure>
   </testcase>
   <testcase name="compareInts(NE:left == right)" classname="tst_ExtendedCompare" time="@TEST_DURATION@">
-    <failure type="fail" message="Left value is expected to be different from right value, but is not">
-      <![CDATA[   Left   (lhs): 1
-   Right  (rhs): 1]]>
+    <failure type="fail" message="The computed value is expected to be different from the baseline, but is not">
+      <![CDATA[   Computed (lhs): 1
+   Baseline (rhs): 1]]>
     </failure>
   </testcase>
   <testcase name="compareInts(NE:left &lt; right)" classname="tst_ExtendedCompare" time="@TEST_DURATION@"/>
   <testcase name="compareInts(NE:left &gt; right)" classname="tst_ExtendedCompare" time="@TEST_DURATION@"/>
   <testcase name="compareInts(LT:left == right)" classname="tst_ExtendedCompare" time="@TEST_DURATION@">
-    <failure type="fail" message="Left value is expected to be less than right value, but is not">
-      <![CDATA[   Left   (lhs): 1
-   Right  (rhs): 1]]>
+    <failure type="fail" message="The computed value is expected to be less than the baseline, but is not">
+      <![CDATA[   Computed (lhs): 1
+   Baseline (rhs): 1]]>
     </failure>
   </testcase>
   <testcase name="compareInts(LT:left &lt; right)" classname="tst_ExtendedCompare" time="@TEST_DURATION@"/>
   <testcase name="compareInts(LT:left &gt; right)" classname="tst_ExtendedCompare" time="@TEST_DURATION@">
-    <failure type="fail" message="Left value is expected to be less than right value, but is not">
-      <![CDATA[   Left   (lhs): 2
-   Right  (rhs): 1]]>
+    <failure type="fail" message="The computed value is expected to be less than the baseline, but is not">
+      <![CDATA[   Computed (lhs): 2
+   Baseline (rhs): 1]]>
     </failure>
   </testcase>
   <testcase name="compareInts(LE:left == right)" classname="tst_ExtendedCompare" time="@TEST_DURATION@"/>
   <testcase name="compareInts(LE:left &lt; right)" classname="tst_ExtendedCompare" time="@TEST_DURATION@"/>
   <testcase name="compareInts(LE:left &gt; right)" classname="tst_ExtendedCompare" time="@TEST_DURATION@">
-    <failure type="fail" message="Left value is expected to be less than or equal to right value, but is not">
-      <![CDATA[   Left   (lhs): 2
-   Right  (rhs): 1]]>
+    <failure type="fail" message="The computed value is expected to be less than or equal to the baseline, but is not">
+      <![CDATA[   Computed (lhs): 2
+   Baseline (rhs): 1]]>
     </failure>
   </testcase>
   <testcase name="compareInts(GT:left == right)" classname="tst_ExtendedCompare" time="@TEST_DURATION@">
-    <failure type="fail" message="Left value is expected to be greater than right value, but is not">
-      <![CDATA[   Left   (lhs): 1
-   Right  (rhs): 1]]>
+    <failure type="fail" message="The computed value is expected to be greater than the baseline, but is not">
+      <![CDATA[   Computed (lhs): 1
+   Baseline (rhs): 1]]>
     </failure>
   </testcase>
   <testcase name="compareInts(GT:left &lt; right)" classname="tst_ExtendedCompare" time="@TEST_DURATION@">
-    <failure type="fail" message="Left value is expected to be greater than right value, but is not">
-      <![CDATA[   Left   (lhs): 1
-   Right  (rhs): 2]]>
+    <failure type="fail" message="The computed value is expected to be greater than the baseline, but is not">
+      <![CDATA[   Computed (lhs): 1
+   Baseline (rhs): 2]]>
     </failure>
   </testcase>
   <testcase name="compareInts(GT:left &gt; right)" classname="tst_ExtendedCompare" time="@TEST_DURATION@"/>
   <testcase name="compareInts(GE:left == right)" classname="tst_ExtendedCompare" time="@TEST_DURATION@"/>
   <testcase name="compareInts(GE:left &lt; right)" classname="tst_ExtendedCompare" time="@TEST_DURATION@">
-    <failure type="fail" message="Left value is expected to be greater than or equal to right value, but is not">
-      <![CDATA[   Left   (lhs): 1
-   Right  (rhs): 2]]>
+    <failure type="fail" message="The computed value is expected to be greater than or equal to the baseline, but is not">
+      <![CDATA[   Computed (lhs): 1
+   Baseline (rhs): 2]]>
     </failure>
   </testcase>
   <testcase name="compareInts(GE:left &gt; right)" classname="tst_ExtendedCompare" time="@TEST_DURATION@"/>
   <testcase name="compareFloats(EQ:left == right)" classname="tst_ExtendedCompare" time="@TEST_DURATION@"/>
   <testcase name="compareFloats(EQ:left &lt; right)" classname="tst_ExtendedCompare" time="@TEST_DURATION@">
-    <failure type="fail" message="Left value is expected to be equal to right value, but is not">
-      <![CDATA[   Left   (lhs): 1
-   Right  (rhs): 1.1]]>
+    <failure type="fail" message="The computed value is expected to be equal to the baseline, but is not">
+      <![CDATA[   Computed (lhs): 1
+   Baseline (rhs): 1.1]]>
     </failure>
   </testcase>
   <testcase name="compareFloats(EQ:left &gt; right)" classname="tst_ExtendedCompare" time="@TEST_DURATION@">
-    <failure type="fail" message="Left value is expected to be equal to right value, but is not">
-      <![CDATA[   Left   (lhs): 1.1
-   Right  (rhs): 1]]>
+    <failure type="fail" message="The computed value is expected to be equal to the baseline, but is not">
+      <![CDATA[   Computed (lhs): 1.1
+   Baseline (rhs): 1]]>
     </failure>
   </testcase>
   <testcase name="compareFloats(NE:left == right)" classname="tst_ExtendedCompare" time="@TEST_DURATION@">
-    <failure type="fail" message="Left value is expected to be different from right value, but is not">
-      <![CDATA[   Left   (lhs): 1
-   Right  (rhs): 1]]>
+    <failure type="fail" message="The computed value is expected to be different from the baseline, but is not">
+      <![CDATA[   Computed (lhs): 1
+   Baseline (rhs): 1]]>
     </failure>
   </testcase>
   <testcase name="compareFloats(NE:left &lt; right)" classname="tst_ExtendedCompare" time="@TEST_DURATION@"/>
   <testcase name="compareFloats(NE:left &gt; right)" classname="tst_ExtendedCompare" time="@TEST_DURATION@"/>
   <testcase name="compareFloats(LT:left == right)" classname="tst_ExtendedCompare" time="@TEST_DURATION@">
-    <failure type="fail" message="Left value is expected to be less than right value, but is not">
-      <![CDATA[   Left   (lhs): 1
-   Right  (rhs): 1]]>
+    <failure type="fail" message="The computed value is expected to be less than the baseline, but is not">
+      <![CDATA[   Computed (lhs): 1
+   Baseline (rhs): 1]]>
     </failure>
   </testcase>
   <testcase name="compareFloats(LT:left &lt; right)" classname="tst_ExtendedCompare" time="@TEST_DURATION@"/>
   <testcase name="compareFloats(LT:left &gt; right)" classname="tst_ExtendedCompare" time="@TEST_DURATION@">
-    <failure type="fail" message="Left value is expected to be less than right value, but is not">
-      <![CDATA[   Left   (lhs): 1.1
-   Right  (rhs): 1]]>
+    <failure type="fail" message="The computed value is expected to be less than the baseline, but is not">
+      <![CDATA[   Computed (lhs): 1.1
+   Baseline (rhs): 1]]>
     </failure>
   </testcase>
   <testcase name="compareFloats(LE:left == right)" classname="tst_ExtendedCompare" time="@TEST_DURATION@"/>
   <testcase name="compareFloats(LE:left &lt; right)" classname="tst_ExtendedCompare" time="@TEST_DURATION@"/>
   <testcase name="compareFloats(LE:left &gt; right)" classname="tst_ExtendedCompare" time="@TEST_DURATION@">
-    <failure type="fail" message="Left value is expected to be less than or equal to right value, but is not">
-      <![CDATA[   Left   (lhs): 1.1
-   Right  (rhs): 1]]>
+    <failure type="fail" message="The computed value is expected to be less than or equal to the baseline, but is not">
+      <![CDATA[   Computed (lhs): 1.1
+   Baseline (rhs): 1]]>
     </failure>
   </testcase>
   <testcase name="compareFloats(GT:left == right)" classname="tst_ExtendedCompare" time="@TEST_DURATION@">
-    <failure type="fail" message="Left value is expected to be greater than right value, but is not">
-      <![CDATA[   Left   (lhs): 1
-   Right  (rhs): 1]]>
+    <failure type="fail" message="The computed value is expected to be greater than the baseline, but is not">
+      <![CDATA[   Computed (lhs): 1
+   Baseline (rhs): 1]]>
     </failure>
   </testcase>
   <testcase name="compareFloats(GT:left &lt; right)" classname="tst_ExtendedCompare" time="@TEST_DURATION@">
-    <failure type="fail" message="Left value is expected to be greater than right value, but is not">
-      <![CDATA[   Left   (lhs): 1
-   Right  (rhs): 1.1]]>
+    <failure type="fail" message="The computed value is expected to be greater than the baseline, but is not">
+      <![CDATA[   Computed (lhs): 1
+   Baseline (rhs): 1.1]]>
     </failure>
   </testcase>
   <testcase name="compareFloats(GT:left &gt; right)" classname="tst_ExtendedCompare" time="@TEST_DURATION@"/>
   <testcase name="compareFloats(GE:left == right)" classname="tst_ExtendedCompare" time="@TEST_DURATION@"/>
   <testcase name="compareFloats(GE:left &lt; right)" classname="tst_ExtendedCompare" time="@TEST_DURATION@">
-    <failure type="fail" message="Left value is expected to be greater than or equal to right value, but is not">
-      <![CDATA[   Left   (lhs): 1
-   Right  (rhs): 1.1]]>
+    <failure type="fail" message="The computed value is expected to be greater than or equal to the baseline, but is not">
+      <![CDATA[   Computed (lhs): 1
+   Baseline (rhs): 1.1]]>
     </failure>
   </testcase>
   <testcase name="compareFloats(GE:left &gt; right)" classname="tst_ExtendedCompare" time="@TEST_DURATION@"/>
   <testcase name="compareDoubles(EQ:left == right)" classname="tst_ExtendedCompare" time="@TEST_DURATION@"/>
   <testcase name="compareDoubles(EQ:left &lt; right)" classname="tst_ExtendedCompare" time="@TEST_DURATION@">
-    <failure type="fail" message="Left value is expected to be equal to right value, but is not">
-      <![CDATA[   Left   (lhs): 0
-   Right  (rhs): 0.1]]>
+    <failure type="fail" message="The computed value is expected to be equal to the baseline, but is not">
+      <![CDATA[   Computed (lhs): 0
+   Baseline (rhs): 0.1]]>
     </failure>
   </testcase>
   <testcase name="compareDoubles(EQ:left &gt; right)" classname="tst_ExtendedCompare" time="@TEST_DURATION@">
-    <failure type="fail" message="Left value is expected to be equal to right value, but is not">
-      <![CDATA[   Left   (lhs): 0.1
-   Right  (rhs): 0]]>
+    <failure type="fail" message="The computed value is expected to be equal to the baseline, but is not">
+      <![CDATA[   Computed (lhs): 0.1
+   Baseline (rhs): 0]]>
     </failure>
   </testcase>
   <testcase name="compareDoubles(NE:left == right)" classname="tst_ExtendedCompare" time="@TEST_DURATION@">
-    <failure type="fail" message="Left value is expected to be different from right value, but is not">
-      <![CDATA[   Left   (lhs): 0
-   Right  (rhs): 0]]>
+    <failure type="fail" message="The computed value is expected to be different from the baseline, but is not">
+      <![CDATA[   Computed (lhs): 0
+   Baseline (rhs): 0]]>
     </failure>
   </testcase>
   <testcase name="compareDoubles(NE:left &lt; right)" classname="tst_ExtendedCompare" time="@TEST_DURATION@"/>
   <testcase name="compareDoubles(NE:left &gt; right)" classname="tst_ExtendedCompare" time="@TEST_DURATION@"/>
   <testcase name="compareDoubles(LT:left == right)" classname="tst_ExtendedCompare" time="@TEST_DURATION@">
-    <failure type="fail" message="Left value is expected to be less than right value, but is not">
-      <![CDATA[   Left   (lhs): 0
-   Right  (rhs): 0]]>
+    <failure type="fail" message="The computed value is expected to be less than the baseline, but is not">
+      <![CDATA[   Computed (lhs): 0
+   Baseline (rhs): 0]]>
     </failure>
   </testcase>
   <testcase name="compareDoubles(LT:left &lt; right)" classname="tst_ExtendedCompare" time="@TEST_DURATION@"/>
   <testcase name="compareDoubles(LT:left &gt; right)" classname="tst_ExtendedCompare" time="@TEST_DURATION@">
-    <failure type="fail" message="Left value is expected to be less than right value, but is not">
-      <![CDATA[   Left   (lhs): 0.1
-   Right  (rhs): 0]]>
+    <failure type="fail" message="The computed value is expected to be less than the baseline, but is not">
+      <![CDATA[   Computed (lhs): 0.1
+   Baseline (rhs): 0]]>
     </failure>
   </testcase>
   <testcase name="compareDoubles(LE:left == right)" classname="tst_ExtendedCompare" time="@TEST_DURATION@"/>
   <testcase name="compareDoubles(LE:left &lt; right)" classname="tst_ExtendedCompare" time="@TEST_DURATION@"/>
   <testcase name="compareDoubles(LE:left &gt; right)" classname="tst_ExtendedCompare" time="@TEST_DURATION@">
-    <failure type="fail" message="Left value is expected to be less than or equal to right value, but is not">
-      <![CDATA[   Left   (lhs): 0.1
-   Right  (rhs): 0]]>
+    <failure type="fail" message="The computed value is expected to be less than or equal to the baseline, but is not">
+      <![CDATA[   Computed (lhs): 0.1
+   Baseline (rhs): 0]]>
     </failure>
   </testcase>
   <testcase name="compareDoubles(GT:left == right)" classname="tst_ExtendedCompare" time="@TEST_DURATION@">
-    <failure type="fail" message="Left value is expected to be greater than right value, but is not">
-      <![CDATA[   Left   (lhs): 0
-   Right  (rhs): 0]]>
+    <failure type="fail" message="The computed value is expected to be greater than the baseline, but is not">
+      <![CDATA[   Computed (lhs): 0
+   Baseline (rhs): 0]]>
     </failure>
   </testcase>
   <testcase name="compareDoubles(GT:left &lt; right)" classname="tst_ExtendedCompare" time="@TEST_DURATION@">
-    <failure type="fail" message="Left value is expected to be greater than right value, but is not">
-      <![CDATA[   Left   (lhs): 0
-   Right  (rhs): 0.1]]>
+    <failure type="fail" message="The computed value is expected to be greater than the baseline, but is not">
+      <![CDATA[   Computed (lhs): 0
+   Baseline (rhs): 0.1]]>
     </failure>
   </testcase>
   <testcase name="compareDoubles(GT:left &gt; right)" classname="tst_ExtendedCompare" time="@TEST_DURATION@"/>
   <testcase name="compareDoubles(GE:left == right)" classname="tst_ExtendedCompare" time="@TEST_DURATION@"/>
   <testcase name="compareDoubles(GE:left &lt; right)" classname="tst_ExtendedCompare" time="@TEST_DURATION@">
-    <failure type="fail" message="Left value is expected to be greater than or equal to right value, but is not">
-      <![CDATA[   Left   (lhs): 0
-   Right  (rhs): 0.1]]>
+    <failure type="fail" message="The computed value is expected to be greater than or equal to the baseline, but is not">
+      <![CDATA[   Computed (lhs): 0
+   Baseline (rhs): 0.1]]>
     </failure>
   </testcase>
   <testcase name="compareDoubles(GE:left &gt; right)" classname="tst_ExtendedCompare" time="@TEST_DURATION@"/>
   <testcase name="comparePointers(EQ:left == right)" classname="tst_ExtendedCompare" time="@TEST_DURATION@"/>
   <testcase name="comparePointers(EQ:left &lt; right)" classname="tst_ExtendedCompare" time="@TEST_DURATION@">
-    <failure type="fail" message="Left value is expected to be equal to right value, but is not">
-      <![CDATA[   Left   (lhs): 1
-   Right  (rhs): 2]]>
+    <failure type="fail" message="The computed value is expected to be equal to the baseline, but is not">
+      <![CDATA[   Computed (lhs): 1
+   Baseline (rhs): 2]]>
     </failure>
   </testcase>
   <testcase name="comparePointers(EQ:left &gt; right)" classname="tst_ExtendedCompare" time="@TEST_DURATION@">
-    <failure type="fail" message="Left value is expected to be equal to right value, but is not">
-      <![CDATA[   Left   (lhs): 2
-   Right  (rhs): 1]]>
+    <failure type="fail" message="The computed value is expected to be equal to the baseline, but is not">
+      <![CDATA[   Computed (lhs): 2
+   Baseline (rhs): 1]]>
     </failure>
   </testcase>
   <testcase name="comparePointers(NE:left == right)" classname="tst_ExtendedCompare" time="@TEST_DURATION@">
-    <failure type="fail" message="Left value is expected to be different from right value, but is not">
-      <![CDATA[   Left   (lhs): 1
-   Right  (rhs): 1]]>
+    <failure type="fail" message="The computed value is expected to be different from the baseline, but is not">
+      <![CDATA[   Computed (lhs): 1
+   Baseline (rhs): 1]]>
     </failure>
   </testcase>
   <testcase name="comparePointers(NE:left &lt; right)" classname="tst_ExtendedCompare" time="@TEST_DURATION@"/>
   <testcase name="comparePointers(NE:left &gt; right)" classname="tst_ExtendedCompare" time="@TEST_DURATION@"/>
   <testcase name="comparePointers(LT:left == right)" classname="tst_ExtendedCompare" time="@TEST_DURATION@">
-    <failure type="fail" message="Left value is expected to be less than right value, but is not">
-      <![CDATA[   Left   (lhs): 1
-   Right  (rhs): 1]]>
+    <failure type="fail" message="The computed value is expected to be less than the baseline, but is not">
+      <![CDATA[   Computed (lhs): 1
+   Baseline (rhs): 1]]>
     </failure>
   </testcase>
   <testcase name="comparePointers(LT:left &lt; right)" classname="tst_ExtendedCompare" time="@TEST_DURATION@"/>
   <testcase name="comparePointers(LT:left &gt; right)" classname="tst_ExtendedCompare" time="@TEST_DURATION@">
-    <failure type="fail" message="Left value is expected to be less than right value, but is not">
-      <![CDATA[   Left   (lhs): 2
-   Right  (rhs): 1]]>
+    <failure type="fail" message="The computed value is expected to be less than the baseline, but is not">
+      <![CDATA[   Computed (lhs): 2
+   Baseline (rhs): 1]]>
     </failure>
   </testcase>
   <testcase name="comparePointers(LE:left == right)" classname="tst_ExtendedCompare" time="@TEST_DURATION@"/>
   <testcase name="comparePointers(LE:left &lt; right)" classname="tst_ExtendedCompare" time="@TEST_DURATION@"/>
   <testcase name="comparePointers(LE:left &gt; right)" classname="tst_ExtendedCompare" time="@TEST_DURATION@">
-    <failure type="fail" message="Left value is expected to be less than or equal to right value, but is not">
-      <![CDATA[   Left   (lhs): 2
-   Right  (rhs): 1]]>
+    <failure type="fail" message="The computed value is expected to be less than or equal to the baseline, but is not">
+      <![CDATA[   Computed (lhs): 2
+   Baseline (rhs): 1]]>
     </failure>
   </testcase>
   <testcase name="comparePointers(GT:left == right)" classname="tst_ExtendedCompare" time="@TEST_DURATION@">
-    <failure type="fail" message="Left value is expected to be greater than right value, but is not">
-      <![CDATA[   Left   (lhs): 1
-   Right  (rhs): 1]]>
+    <failure type="fail" message="The computed value is expected to be greater than the baseline, but is not">
+      <![CDATA[   Computed (lhs): 1
+   Baseline (rhs): 1]]>
     </failure>
   </testcase>
   <testcase name="comparePointers(GT:left &lt; right)" classname="tst_ExtendedCompare" time="@TEST_DURATION@">
-    <failure type="fail" message="Left value is expected to be greater than right value, but is not">
-      <![CDATA[   Left   (lhs): 1
-   Right  (rhs): 2]]>
+    <failure type="fail" message="The computed value is expected to be greater than the baseline, but is not">
+      <![CDATA[   Computed (lhs): 1
+   Baseline (rhs): 2]]>
     </failure>
   </testcase>
   <testcase name="comparePointers(GT:left &gt; right)" classname="tst_ExtendedCompare" time="@TEST_DURATION@"/>
   <testcase name="comparePointers(GE:left == right)" classname="tst_ExtendedCompare" time="@TEST_DURATION@"/>
   <testcase name="comparePointers(GE:left &lt; right)" classname="tst_ExtendedCompare" time="@TEST_DURATION@">
-    <failure type="fail" message="Left value is expected to be greater than or equal to right value, but is not">
-      <![CDATA[   Left   (lhs): 1
-   Right  (rhs): 2]]>
+    <failure type="fail" message="The computed value is expected to be greater than or equal to the baseline, but is not">
+      <![CDATA[   Computed (lhs): 1
+   Baseline (rhs): 2]]>
     </failure>
   </testcase>
   <testcase name="comparePointers(GE:left &gt; right)" classname="tst_ExtendedCompare" time="@TEST_DURATION@"/>
   <testcase name="compareToNullptr(EQ:left == right)" classname="tst_ExtendedCompare" time="@TEST_DURATION@"/>
   <testcase name="compareToNullptr(EQ:left &lt; right)" classname="tst_ExtendedCompare" time="@TEST_DURATION@">
-    <failure type="fail" message="Left value is expected to be equal to right value, but is not">
-      <![CDATA[   Left   (lhs): "nullptr"
-   Right  (rhs): 1]]>
+    <failure type="fail" message="The computed value is expected to be equal to the baseline, but is not">
+      <![CDATA[   Computed (lhs): "nullptr"
+   Baseline (rhs): 1]]>
     </failure>
   </testcase>
   <testcase name="compareToNullptr(EQ:left &gt; right)" classname="tst_ExtendedCompare" time="@TEST_DURATION@">
-    <failure type="fail" message="Left value is expected to be equal to right value, but is not">
-      <![CDATA[   Left   (lhs): 1
-   Right  (rhs): "nullptr"]]>
+    <failure type="fail" message="The computed value is expected to be equal to the baseline, but is not">
+      <![CDATA[   Computed (lhs): 1
+   Baseline (rhs): "nullptr"]]>
     </failure>
   </testcase>
   <testcase name="compareToNullptr(NE:left == right)" classname="tst_ExtendedCompare" time="@TEST_DURATION@">
-    <failure type="fail" message="Left value is expected to be different from right value, but is not">
-      <![CDATA[   Left   (lhs): "nullptr"
-   Right  (rhs): "nullptr"]]>
+    <failure type="fail" message="The computed value is expected to be different from the baseline, but is not">
+      <![CDATA[   Computed (lhs): "nullptr"
+   Baseline (rhs): "nullptr"]]>
     </failure>
   </testcase>
   <testcase name="compareToNullptr(NE:left &lt; right)" classname="tst_ExtendedCompare" time="@TEST_DURATION@"/>
   <testcase name="compareToNullptr(NE:left &gt; right)" classname="tst_ExtendedCompare" time="@TEST_DURATION@"/>
   <testcase name="compareToNullptr(LT:left == right)" classname="tst_ExtendedCompare" time="@TEST_DURATION@">
-    <failure type="fail" message="Left value is expected to be less than right value, but is not">
-      <![CDATA[   Left   (lhs): "nullptr"
-   Right  (rhs): "nullptr"]]>
+    <failure type="fail" message="The computed value is expected to be less than the baseline, but is not">
+      <![CDATA[   Computed (lhs): "nullptr"
+   Baseline (rhs): "nullptr"]]>
     </failure>
   </testcase>
   <testcase name="compareToNullptr(LT:left &lt; right)" classname="tst_ExtendedCompare" time="@TEST_DURATION@"/>
   <testcase name="compareToNullptr(LT:left &gt; right)" classname="tst_ExtendedCompare" time="@TEST_DURATION@">
-    <failure type="fail" message="Left value is expected to be less than right value, but is not">
-      <![CDATA[   Left   (lhs): 1
-   Right  (rhs): "nullptr"]]>
+    <failure type="fail" message="The computed value is expected to be less than the baseline, but is not">
+      <![CDATA[   Computed (lhs): 1
+   Baseline (rhs): "nullptr"]]>
     </failure>
   </testcase>
   <testcase name="compareToNullptr(LE:left == right)" classname="tst_ExtendedCompare" time="@TEST_DURATION@"/>
   <testcase name="compareToNullptr(LE:left &lt; right)" classname="tst_ExtendedCompare" time="@TEST_DURATION@"/>
   <testcase name="compareToNullptr(LE:left &gt; right)" classname="tst_ExtendedCompare" time="@TEST_DURATION@">
-    <failure type="fail" message="Left value is expected to be less than or equal to right value, but is not">
-      <![CDATA[   Left   (lhs): 1
-   Right  (rhs): "nullptr"]]>
+    <failure type="fail" message="The computed value is expected to be less than or equal to the baseline, but is not">
+      <![CDATA[   Computed (lhs): 1
+   Baseline (rhs): "nullptr"]]>
     </failure>
   </testcase>
   <testcase name="compareToNullptr(GT:left == right)" classname="tst_ExtendedCompare" time="@TEST_DURATION@">
-    <failure type="fail" message="Left value is expected to be greater than right value, but is not">
-      <![CDATA[   Left   (lhs): "nullptr"
-   Right  (rhs): "nullptr"]]>
+    <failure type="fail" message="The computed value is expected to be greater than the baseline, but is not">
+      <![CDATA[   Computed (lhs): "nullptr"
+   Baseline (rhs): "nullptr"]]>
     </failure>
   </testcase>
   <testcase name="compareToNullptr(GT:left &lt; right)" classname="tst_ExtendedCompare" time="@TEST_DURATION@">
-    <failure type="fail" message="Left value is expected to be greater than right value, but is not">
-      <![CDATA[   Left   (lhs): "nullptr"
-   Right  (rhs): 1]]>
+    <failure type="fail" message="The computed value is expected to be greater than the baseline, but is not">
+      <![CDATA[   Computed (lhs): "nullptr"
+   Baseline (rhs): 1]]>
     </failure>
   </testcase>
   <testcase name="compareToNullptr(GT:left &gt; right)" classname="tst_ExtendedCompare" time="@TEST_DURATION@"/>
   <testcase name="compareToNullptr(GE:left == right)" classname="tst_ExtendedCompare" time="@TEST_DURATION@"/>
   <testcase name="compareToNullptr(GE:left &lt; right)" classname="tst_ExtendedCompare" time="@TEST_DURATION@">
-    <failure type="fail" message="Left value is expected to be greater than or equal to right value, but is not">
-      <![CDATA[   Left   (lhs): "nullptr"
-   Right  (rhs): 1]]>
+    <failure type="fail" message="The computed value is expected to be greater than or equal to the baseline, but is not">
+      <![CDATA[   Computed (lhs): "nullptr"
+   Baseline (rhs): 1]]>
     </failure>
   </testcase>
   <testcase name="compareToNullptr(GE:left &gt; right)" classname="tst_ExtendedCompare" time="@TEST_DURATION@"/>
   <testcase name="compareUnregistereEnum(EQ:left == right)" classname="tst_ExtendedCompare" time="@TEST_DURATION@"/>
   <testcase name="compareUnregistereEnum(EQ:left &lt; right)" classname="tst_ExtendedCompare" time="@TEST_DURATION@">
-    <failure type="fail" message="Left value is expected to be equal to right value, but is not">
-      <![CDATA[   Left   (lhs): 0
-   Right  (rhs): 1]]>
+    <failure type="fail" message="The computed value is expected to be equal to the baseline, but is not">
+      <![CDATA[   Computed (lhs): 0
+   Baseline (rhs): 1]]>
     </failure>
   </testcase>
   <testcase name="compareUnregistereEnum(EQ:left &gt; right)" classname="tst_ExtendedCompare" time="@TEST_DURATION@">
-    <failure type="fail" message="Left value is expected to be equal to right value, but is not">
-      <![CDATA[   Left   (lhs): 1
-   Right  (rhs): 0]]>
+    <failure type="fail" message="The computed value is expected to be equal to the baseline, but is not">
+      <![CDATA[   Computed (lhs): 1
+   Baseline (rhs): 0]]>
     </failure>
   </testcase>
   <testcase name="compareUnregistereEnum(NE:left == right)" classname="tst_ExtendedCompare" time="@TEST_DURATION@">
-    <failure type="fail" message="Left value is expected to be different from right value, but is not">
-      <![CDATA[   Left   (lhs): 0
-   Right  (rhs): 0]]>
+    <failure type="fail" message="The computed value is expected to be different from the baseline, but is not">
+      <![CDATA[   Computed (lhs): 0
+   Baseline (rhs): 0]]>
     </failure>
   </testcase>
   <testcase name="compareUnregistereEnum(NE:left &lt; right)" classname="tst_ExtendedCompare" time="@TEST_DURATION@"/>
   <testcase name="compareUnregistereEnum(NE:left &gt; right)" classname="tst_ExtendedCompare" time="@TEST_DURATION@"/>
   <testcase name="compareUnregistereEnum(LT:left == right)" classname="tst_ExtendedCompare" time="@TEST_DURATION@">
-    <failure type="fail" message="Left value is expected to be less than right value, but is not">
-      <![CDATA[   Left   (lhs): 0
-   Right  (rhs): 0]]>
+    <failure type="fail" message="The computed value is expected to be less than the baseline, but is not">
+      <![CDATA[   Computed (lhs): 0
+   Baseline (rhs): 0]]>
     </failure>
   </testcase>
   <testcase name="compareUnregistereEnum(LT:left &lt; right)" classname="tst_ExtendedCompare" time="@TEST_DURATION@"/>
   <testcase name="compareUnregistereEnum(LT:left &gt; right)" classname="tst_ExtendedCompare" time="@TEST_DURATION@">
-    <failure type="fail" message="Left value is expected to be less than right value, but is not">
-      <![CDATA[   Left   (lhs): 1
-   Right  (rhs): 0]]>
+    <failure type="fail" message="The computed value is expected to be less than the baseline, but is not">
+      <![CDATA[   Computed (lhs): 1
+   Baseline (rhs): 0]]>
     </failure>
   </testcase>
   <testcase name="compareUnregistereEnum(LE:left == right)" classname="tst_ExtendedCompare" time="@TEST_DURATION@"/>
   <testcase name="compareUnregistereEnum(LE:left &lt; right)" classname="tst_ExtendedCompare" time="@TEST_DURATION@"/>
   <testcase name="compareUnregistereEnum(LE:left &gt; right)" classname="tst_ExtendedCompare" time="@TEST_DURATION@">
-    <failure type="fail" message="Left value is expected to be less than or equal to right value, but is not">
-      <![CDATA[   Left   (lhs): 1
-   Right  (rhs): 0]]>
+    <failure type="fail" message="The computed value is expected to be less than or equal to the baseline, but is not">
+      <![CDATA[   Computed (lhs): 1
+   Baseline (rhs): 0]]>
     </failure>
   </testcase>
   <testcase name="compareUnregistereEnum(GT:left == right)" classname="tst_ExtendedCompare" time="@TEST_DURATION@">
-    <failure type="fail" message="Left value is expected to be greater than right value, but is not">
-      <![CDATA[   Left   (lhs): 0
-   Right  (rhs): 0]]>
+    <failure type="fail" message="The computed value is expected to be greater than the baseline, but is not">
+      <![CDATA[   Computed (lhs): 0
+   Baseline (rhs): 0]]>
     </failure>
   </testcase>
   <testcase name="compareUnregistereEnum(GT:left &lt; right)" classname="tst_ExtendedCompare" time="@TEST_DURATION@">
-    <failure type="fail" message="Left value is expected to be greater than right value, but is not">
-      <![CDATA[   Left   (lhs): 0
-   Right  (rhs): 1]]>
+    <failure type="fail" message="The computed value is expected to be greater than the baseline, but is not">
+      <![CDATA[   Computed (lhs): 0
+   Baseline (rhs): 1]]>
     </failure>
   </testcase>
   <testcase name="compareUnregistereEnum(GT:left &gt; right)" classname="tst_ExtendedCompare" time="@TEST_DURATION@"/>
   <testcase name="compareUnregistereEnum(GE:left == right)" classname="tst_ExtendedCompare" time="@TEST_DURATION@"/>
   <testcase name="compareUnregistereEnum(GE:left &lt; right)" classname="tst_ExtendedCompare" time="@TEST_DURATION@">
-    <failure type="fail" message="Left value is expected to be greater than or equal to right value, but is not">
-      <![CDATA[   Left   (lhs): 0
-   Right  (rhs): 1]]>
+    <failure type="fail" message="The computed value is expected to be greater than or equal to the baseline, but is not">
+      <![CDATA[   Computed (lhs): 0
+   Baseline (rhs): 1]]>
     </failure>
   </testcase>
   <testcase name="compareUnregistereEnum(GE:left &gt; right)" classname="tst_ExtendedCompare" time="@TEST_DURATION@"/>
   <testcase name="compareRegistereEnum(EQ:left == right)" classname="tst_ExtendedCompare" time="@TEST_DURATION@"/>
   <testcase name="compareRegistereEnum(EQ:left &lt; right)" classname="tst_ExtendedCompare" time="@TEST_DURATION@">
-    <failure type="fail" message="Left value is expected to be equal to right value, but is not">
-      <![CDATA[   Left   (lhs): Monday
-   Right  (rhs): Sunday]]>
+    <failure type="fail" message="The computed value is expected to be equal to the baseline, but is not">
+      <![CDATA[   Computed (lhs): Monday
+   Baseline (rhs): Sunday]]>
     </failure>
   </testcase>
   <testcase name="compareRegistereEnum(EQ:left &gt; right)" classname="tst_ExtendedCompare" time="@TEST_DURATION@">
-    <failure type="fail" message="Left value is expected to be equal to right value, but is not">
-      <![CDATA[   Left   (lhs): Sunday
-   Right  (rhs): Monday]]>
+    <failure type="fail" message="The computed value is expected to be equal to the baseline, but is not">
+      <![CDATA[   Computed (lhs): Sunday
+   Baseline (rhs): Monday]]>
     </failure>
   </testcase>
   <testcase name="compareRegistereEnum(NE:left == right)" classname="tst_ExtendedCompare" time="@TEST_DURATION@">
-    <failure type="fail" message="Left value is expected to be different from right value, but is not">
-      <![CDATA[   Left   (lhs): Monday
-   Right  (rhs): Monday]]>
+    <failure type="fail" message="The computed value is expected to be different from the baseline, but is not">
+      <![CDATA[   Computed (lhs): Monday
+   Baseline (rhs): Monday]]>
     </failure>
   </testcase>
   <testcase name="compareRegistereEnum(NE:left &lt; right)" classname="tst_ExtendedCompare" time="@TEST_DURATION@"/>
   <testcase name="compareRegistereEnum(NE:left &gt; right)" classname="tst_ExtendedCompare" time="@TEST_DURATION@"/>
   <testcase name="compareRegistereEnum(LT:left == right)" classname="tst_ExtendedCompare" time="@TEST_DURATION@">
-    <failure type="fail" message="Left value is expected to be less than right value, but is not">
-      <![CDATA[   Left   (lhs): Monday
-   Right  (rhs): Monday]]>
+    <failure type="fail" message="The computed value is expected to be less than the baseline, but is not">
+      <![CDATA[   Computed (lhs): Monday
+   Baseline (rhs): Monday]]>
     </failure>
   </testcase>
   <testcase name="compareRegistereEnum(LT:left &lt; right)" classname="tst_ExtendedCompare" time="@TEST_DURATION@"/>
   <testcase name="compareRegistereEnum(LT:left &gt; right)" classname="tst_ExtendedCompare" time="@TEST_DURATION@">
-    <failure type="fail" message="Left value is expected to be less than right value, but is not">
-      <![CDATA[   Left   (lhs): Sunday
-   Right  (rhs): Monday]]>
+    <failure type="fail" message="The computed value is expected to be less than the baseline, but is not">
+      <![CDATA[   Computed (lhs): Sunday
+   Baseline (rhs): Monday]]>
     </failure>
   </testcase>
   <testcase name="compareRegistereEnum(LE:left == right)" classname="tst_ExtendedCompare" time="@TEST_DURATION@"/>
   <testcase name="compareRegistereEnum(LE:left &lt; right)" classname="tst_ExtendedCompare" time="@TEST_DURATION@"/>
   <testcase name="compareRegistereEnum(LE:left &gt; right)" classname="tst_ExtendedCompare" time="@TEST_DURATION@">
-    <failure type="fail" message="Left value is expected to be less than or equal to right value, but is not">
-      <![CDATA[   Left   (lhs): Sunday
-   Right  (rhs): Monday]]>
+    <failure type="fail" message="The computed value is expected to be less than or equal to the baseline, but is not">
+      <![CDATA[   Computed (lhs): Sunday
+   Baseline (rhs): Monday]]>
     </failure>
   </testcase>
   <testcase name="compareRegistereEnum(GT:left == right)" classname="tst_ExtendedCompare" time="@TEST_DURATION@">
-    <failure type="fail" message="Left value is expected to be greater than right value, but is not">
-      <![CDATA[   Left   (lhs): Monday
-   Right  (rhs): Monday]]>
+    <failure type="fail" message="The computed value is expected to be greater than the baseline, but is not">
+      <![CDATA[   Computed (lhs): Monday
+   Baseline (rhs): Monday]]>
     </failure>
   </testcase>
   <testcase name="compareRegistereEnum(GT:left &lt; right)" classname="tst_ExtendedCompare" time="@TEST_DURATION@">
-    <failure type="fail" message="Left value is expected to be greater than right value, but is not">
-      <![CDATA[   Left   (lhs): Monday
-   Right  (rhs): Sunday]]>
+    <failure type="fail" message="The computed value is expected to be greater than the baseline, but is not">
+      <![CDATA[   Computed (lhs): Monday
+   Baseline (rhs): Sunday]]>
     </failure>
   </testcase>
   <testcase name="compareRegistereEnum(GT:left &gt; right)" classname="tst_ExtendedCompare" time="@TEST_DURATION@"/>
   <testcase name="compareRegistereEnum(GE:left == right)" classname="tst_ExtendedCompare" time="@TEST_DURATION@"/>
   <testcase name="compareRegistereEnum(GE:left &lt; right)" classname="tst_ExtendedCompare" time="@TEST_DURATION@">
-    <failure type="fail" message="Left value is expected to be greater than or equal to right value, but is not">
-      <![CDATA[   Left   (lhs): Monday
-   Right  (rhs): Sunday]]>
+    <failure type="fail" message="The computed value is expected to be greater than or equal to the baseline, but is not">
+      <![CDATA[   Computed (lhs): Monday
+   Baseline (rhs): Sunday]]>
     </failure>
   </testcase>
   <testcase name="compareRegistereEnum(GE:left &gt; right)" classname="tst_ExtendedCompare" time="@TEST_DURATION@"/>
   <testcase name="compareCustomTypes(EQ:left == right)" classname="tst_ExtendedCompare" time="@TEST_DURATION@"/>
   <testcase name="compareCustomTypes(EQ:left &lt; right)" classname="tst_ExtendedCompare" time="@TEST_DURATION@">
-    <failure type="fail" message="Left value is expected to be equal to right value, but is not">
-      <![CDATA[   Left   (lhs): MyClass(1)
-   Right  (rhs): MyClass(2)]]>
+    <failure type="fail" message="The computed value is expected to be equal to the baseline, but is not">
+      <![CDATA[   Computed (lhs): MyClass(1)
+   Baseline (rhs): MyClass(2)]]>
     </failure>
   </testcase>
   <testcase name="compareCustomTypes(EQ:left &gt; right)" classname="tst_ExtendedCompare" time="@TEST_DURATION@">
-    <failure type="fail" message="Left value is expected to be equal to right value, but is not">
-      <![CDATA[   Left   (lhs): MyClass(2)
-   Right  (rhs): MyClass(1)]]>
+    <failure type="fail" message="The computed value is expected to be equal to the baseline, but is not">
+      <![CDATA[   Computed (lhs): MyClass(2)
+   Baseline (rhs): MyClass(1)]]>
     </failure>
   </testcase>
   <testcase name="compareCustomTypes(NE:left == right)" classname="tst_ExtendedCompare" time="@TEST_DURATION@">
-    <failure type="fail" message="Left value is expected to be different from right value, but is not">
-      <![CDATA[   Left   (lhs): MyClass(1)
-   Right  (rhs): MyClass(1)]]>
+    <failure type="fail" message="The computed value is expected to be different from the baseline, but is not">
+      <![CDATA[   Computed (lhs): MyClass(1)
+   Baseline (rhs): MyClass(1)]]>
     </failure>
   </testcase>
   <testcase name="compareCustomTypes(NE:left &lt; right)" classname="tst_ExtendedCompare" time="@TEST_DURATION@"/>
   <testcase name="compareCustomTypes(NE:left &gt; right)" classname="tst_ExtendedCompare" time="@TEST_DURATION@"/>
   <testcase name="compareCustomTypes(LT:left == right)" classname="tst_ExtendedCompare" time="@TEST_DURATION@">
-    <failure type="fail" message="Left value is expected to be less than right value, but is not">
-      <![CDATA[   Left   (lhs): MyClass(1)
-   Right  (rhs): MyClass(1)]]>
+    <failure type="fail" message="The computed value is expected to be less than the baseline, but is not">
+      <![CDATA[   Computed (lhs): MyClass(1)
+   Baseline (rhs): MyClass(1)]]>
     </failure>
   </testcase>
   <testcase name="compareCustomTypes(LT:left &lt; right)" classname="tst_ExtendedCompare" time="@TEST_DURATION@"/>
   <testcase name="compareCustomTypes(LT:left &gt; right)" classname="tst_ExtendedCompare" time="@TEST_DURATION@">
-    <failure type="fail" message="Left value is expected to be less than right value, but is not">
-      <![CDATA[   Left   (lhs): MyClass(2)
-   Right  (rhs): MyClass(1)]]>
+    <failure type="fail" message="The computed value is expected to be less than the baseline, but is not">
+      <![CDATA[   Computed (lhs): MyClass(2)
+   Baseline (rhs): MyClass(1)]]>
     </failure>
   </testcase>
   <testcase name="compareCustomTypes(LE:left == right)" classname="tst_ExtendedCompare" time="@TEST_DURATION@"/>
   <testcase name="compareCustomTypes(LE:left &lt; right)" classname="tst_ExtendedCompare" time="@TEST_DURATION@"/>
   <testcase name="compareCustomTypes(LE:left &gt; right)" classname="tst_ExtendedCompare" time="@TEST_DURATION@">
-    <failure type="fail" message="Left value is expected to be less than or equal to right value, but is not">
-      <![CDATA[   Left   (lhs): MyClass(2)
-   Right  (rhs): MyClass(1)]]>
+    <failure type="fail" message="The computed value is expected to be less than or equal to the baseline, but is not">
+      <![CDATA[   Computed (lhs): MyClass(2)
+   Baseline (rhs): MyClass(1)]]>
     </failure>
   </testcase>
   <testcase name="compareCustomTypes(GT:left == right)" classname="tst_ExtendedCompare" time="@TEST_DURATION@">
-    <failure type="fail" message="Left value is expected to be greater than right value, but is not">
-      <![CDATA[   Left   (lhs): MyClass(1)
-   Right  (rhs): MyClass(1)]]>
+    <failure type="fail" message="The computed value is expected to be greater than the baseline, but is not">
+      <![CDATA[   Computed (lhs): MyClass(1)
+   Baseline (rhs): MyClass(1)]]>
     </failure>
   </testcase>
   <testcase name="compareCustomTypes(GT:left &lt; right)" classname="tst_ExtendedCompare" time="@TEST_DURATION@">
-    <failure type="fail" message="Left value is expected to be greater than right value, but is not">
-      <![CDATA[   Left   (lhs): MyClass(1)
-   Right  (rhs): MyClass(2)]]>
+    <failure type="fail" message="The computed value is expected to be greater than the baseline, but is not">
+      <![CDATA[   Computed (lhs): MyClass(1)
+   Baseline (rhs): MyClass(2)]]>
     </failure>
   </testcase>
   <testcase name="compareCustomTypes(GT:left &gt; right)" classname="tst_ExtendedCompare" time="@TEST_DURATION@"/>
   <testcase name="compareCustomTypes(GE:left == right)" classname="tst_ExtendedCompare" time="@TEST_DURATION@"/>
   <testcase name="compareCustomTypes(GE:left &lt; right)" classname="tst_ExtendedCompare" time="@TEST_DURATION@">
-    <failure type="fail" message="Left value is expected to be greater than or equal to right value, but is not">
-      <![CDATA[   Left   (lhs): MyClass(1)
-   Right  (rhs): MyClass(2)]]>
+    <failure type="fail" message="The computed value is expected to be greater than or equal to the baseline, but is not">
+      <![CDATA[   Computed (lhs): MyClass(1)
+   Baseline (rhs): MyClass(2)]]>
     </failure>
   </testcase>
   <testcase name="compareCustomTypes(GE:left &gt; right)" classname="tst_ExtendedCompare" time="@TEST_DURATION@"/>
   <testcase name="checkComparisonForTemporaryObjects" classname="tst_ExtendedCompare" time="@TEST_DURATION@">
-    <failure type="fail" message="Left value is expected to be equal to right value, but is not">
-      <![CDATA[   Left   (getClassForValue(0).getValuePointer()): MyClass(2) on memory address with index 0
-   Right  (getClassForValue(1).getValuePointer()): MyClass(1) on memory address with index 1]]>
+    <failure type="fail" message="The computed value is expected to be equal to the baseline, but is not">
+      <![CDATA[   Computed (getClassForValue(0).getValuePointer()): MyClass(2) on memory address with index 0
+   Baseline (getClassForValue(1).getValuePointer()): MyClass(1) on memory address with index 1]]>
     </failure>
   </testcase>
   <testcase name="checkComparisonWithTimeout" classname="tst_ExtendedCompare" time="@TEST_DURATION@">
-    <failure type="fail" message="Left value is expected to be less than right value, but is not">
-      <![CDATA[   Left   (c)                         : ClassWithDeferredSetter(1)
-   Right  (ClassWithDeferredSetter(0)): ClassWithDeferredSetter(0)]]>
+    <failure type="fail" message="The computed value is expected to be less than the baseline, but is not">
+      <![CDATA[   Computed (c)                         : ClassWithDeferredSetter(1)
+   Baseline (ClassWithDeferredSetter(0)): ClassWithDeferredSetter(0)]]>
     </failure>
   </testcase>
   <testcase name="cleanupTestCase" classname="tst_ExtendedCompare" time="@TEST_DURATION@"/>
diff --git a/tests/auto/testlib/selftests/expected_extendedcompare.lightxml b/tests/auto/testlib/selftests/expected_extendedcompare.lightxml
index e59dd6ed..fd6e4869 100644
--- a/tests/auto/testlib/selftests/expected_extendedcompare.lightxml
+++ b/tests/auto/testlib/selftests/expected_extendedcompare.lightxml
@@ -13,21 +13,21 @@
     </Incident>
     <Incident type="fail" file="qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp" line="0">
       <DataTag><![CDATA[EQ:left < right]]></DataTag>
-      <Description><![CDATA[Left value is expected to be equal to right value, but is not
-   Left   (lhs): 1
-   Right  (rhs): 2]]></Description>
+      <Description><![CDATA[The computed value is expected to be equal to the baseline, but is not
+   Computed (lhs): 1
+   Baseline (rhs): 2]]></Description>
     </Incident>
     <Incident type="fail" file="qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp" line="0">
       <DataTag><![CDATA[EQ:left > right]]></DataTag>
-      <Description><![CDATA[Left value is expected to be equal to right value, but is not
-   Left   (lhs): 2
-   Right  (rhs): 1]]></Description>
+      <Description><![CDATA[The computed value is expected to be equal to the baseline, but is not
+   Computed (lhs): 2
+   Baseline (rhs): 1]]></Description>
     </Incident>
     <Incident type="fail" file="qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp" line="0">
       <DataTag><![CDATA[NE:left == right]]></DataTag>
-      <Description><![CDATA[Left value is expected to be different from right value, but is not
-   Left   (lhs): 1
-   Right  (rhs): 1]]></Description>
+      <Description><![CDATA[The computed value is expected to be different from the baseline, but is not
+   Computed (lhs): 1
+   Baseline (rhs): 1]]></Description>
     </Incident>
     <Incident type="pass" file="" line="0">
       <DataTag><![CDATA[NE:left < right]]></DataTag>
@@ -37,18 +37,18 @@
     </Incident>
     <Incident type="fail" file="qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp" line="0">
       <DataTag><![CDATA[LT:left == right]]></DataTag>
-      <Description><![CDATA[Left value is expected to be less than right value, but is not
-   Left   (lhs): 1
-   Right  (rhs): 1]]></Description>
+      <Description><![CDATA[The computed value is expected to be less than the baseline, but is not
+   Computed (lhs): 1
+   Baseline (rhs): 1]]></Description>
     </Incident>
     <Incident type="pass" file="" line="0">
       <DataTag><![CDATA[LT:left < right]]></DataTag>
     </Incident>
     <Incident type="fail" file="qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp" line="0">
       <DataTag><![CDATA[LT:left > right]]></DataTag>
-      <Description><![CDATA[Left value is expected to be less than right value, but is not
-   Left   (lhs): 2
-   Right  (rhs): 1]]></Description>
+      <Description><![CDATA[The computed value is expected to be less than the baseline, but is not
+   Computed (lhs): 2
+   Baseline (rhs): 1]]></Description>
     </Incident>
     <Incident type="pass" file="" line="0">
       <DataTag><![CDATA[LE:left == right]]></DataTag>
@@ -58,21 +58,21 @@
     </Incident>
     <Incident type="fail" file="qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp" line="0">
       <DataTag><![CDATA[LE:left > right]]></DataTag>
-      <Description><![CDATA[Left value is expected to be less than or equal to right value, but is not
-   Left   (lhs): 2
-   Right  (rhs): 1]]></Description>
+      <Description><![CDATA[The computed value is expected to be less than or equal to the baseline, but is not
+   Computed (lhs): 2
+   Baseline (rhs): 1]]></Description>
     </Incident>
     <Incident type="fail" file="qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp" line="0">
       <DataTag><![CDATA[GT:left == right]]></DataTag>
-      <Description><![CDATA[Left value is expected to be greater than right value, but is not
-   Left   (lhs): 1
-   Right  (rhs): 1]]></Description>
+      <Description><![CDATA[The computed value is expected to be greater than the baseline, but is not
+   Computed (lhs): 1
+   Baseline (rhs): 1]]></Description>
     </Incident>
     <Incident type="fail" file="qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp" line="0">
       <DataTag><![CDATA[GT:left < right]]></DataTag>
-      <Description><![CDATA[Left value is expected to be greater than right value, but is not
-   Left   (lhs): 1
-   Right  (rhs): 2]]></Description>
+      <Description><![CDATA[The computed value is expected to be greater than the baseline, but is not
+   Computed (lhs): 1
+   Baseline (rhs): 2]]></Description>
     </Incident>
     <Incident type="pass" file="" line="0">
       <DataTag><![CDATA[GT:left > right]]></DataTag>
@@ -82,9 +82,9 @@
     </Incident>
     <Incident type="fail" file="qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp" line="0">
       <DataTag><![CDATA[GE:left < right]]></DataTag>
-      <Description><![CDATA[Left value is expected to be greater than or equal to right value, but is not
-   Left   (lhs): 1
-   Right  (rhs): 2]]></Description>
+      <Description><![CDATA[The computed value is expected to be greater than or equal to the baseline, but is not
+   Computed (lhs): 1
+   Baseline (rhs): 2]]></Description>
     </Incident>
     <Incident type="pass" file="" line="0">
       <DataTag><![CDATA[GE:left > right]]></DataTag>
@@ -97,21 +97,21 @@
     </Incident>
     <Incident type="fail" file="qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp" line="0">
       <DataTag><![CDATA[EQ:left < right]]></DataTag>
-      <Description><![CDATA[Left value is expected to be equal to right value, but is not
-   Left   (lhs): 1
-   Right  (rhs): 1.1]]></Description>
+      <Description><![CDATA[The computed value is expected to be equal to the baseline, but is not
+   Computed (lhs): 1
+   Baseline (rhs): 1.1]]></Description>
     </Incident>
     <Incident type="fail" file="qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp" line="0">
       <DataTag><![CDATA[EQ:left > right]]></DataTag>
-      <Description><![CDATA[Left value is expected to be equal to right value, but is not
-   Left   (lhs): 1.1
-   Right  (rhs): 1]]></Description>
+      <Description><![CDATA[The computed value is expected to be equal to the baseline, but is not
+   Computed (lhs): 1.1
+   Baseline (rhs): 1]]></Description>
     </Incident>
     <Incident type="fail" file="qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp" line="0">
       <DataTag><![CDATA[NE:left == right]]></DataTag>
-      <Description><![CDATA[Left value is expected to be different from right value, but is not
-   Left   (lhs): 1
-   Right  (rhs): 1]]></Description>
+      <Description><![CDATA[The computed value is expected to be different from the baseline, but is not
+   Computed (lhs): 1
+   Baseline (rhs): 1]]></Description>
     </Incident>
     <Incident type="pass" file="" line="0">
       <DataTag><![CDATA[NE:left < right]]></DataTag>
@@ -121,18 +121,18 @@
     </Incident>
     <Incident type="fail" file="qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp" line="0">
       <DataTag><![CDATA[LT:left == right]]></DataTag>
-      <Description><![CDATA[Left value is expected to be less than right value, but is not
-   Left   (lhs): 1
-   Right  (rhs): 1]]></Description>
+      <Description><![CDATA[The computed value is expected to be less than the baseline, but is not
+   Computed (lhs): 1
+   Baseline (rhs): 1]]></Description>
     </Incident>
     <Incident type="pass" file="" line="0">
       <DataTag><![CDATA[LT:left < right]]></DataTag>
     </Incident>
     <Incident type="fail" file="qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp" line="0">
       <DataTag><![CDATA[LT:left > right]]></DataTag>
-      <Description><![CDATA[Left value is expected to be less than right value, but is not
-   Left   (lhs): 1.1
-   Right  (rhs): 1]]></Description>
+      <Description><![CDATA[The computed value is expected to be less than the baseline, but is not
+   Computed (lhs): 1.1
+   Baseline (rhs): 1]]></Description>
     </Incident>
     <Incident type="pass" file="" line="0">
       <DataTag><![CDATA[LE:left == right]]></DataTag>
@@ -142,21 +142,21 @@
     </Incident>
     <Incident type="fail" file="qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp" line="0">
       <DataTag><![CDATA[LE:left > right]]></DataTag>
-      <Description><![CDATA[Left value is expected to be less than or equal to right value, but is not
-   Left   (lhs): 1.1
-   Right  (rhs): 1]]></Description>
+      <Description><![CDATA[The computed value is expected to be less than or equal to the baseline, but is not
+   Computed (lhs): 1.1
+   Baseline (rhs): 1]]></Description>
     </Incident>
     <Incident type="fail" file="qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp" line="0">
       <DataTag><![CDATA[GT:left == right]]></DataTag>
-      <Description><![CDATA[Left value is expected to be greater than right value, but is not
-   Left   (lhs): 1
-   Right  (rhs): 1]]></Description>
+      <Description><![CDATA[The computed value is expected to be greater than the baseline, but is not
+   Computed (lhs): 1
+   Baseline (rhs): 1]]></Description>
     </Incident>
     <Incident type="fail" file="qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp" line="0">
       <DataTag><![CDATA[GT:left < right]]></DataTag>
-      <Description><![CDATA[Left value is expected to be greater than right value, but is not
-   Left   (lhs): 1
-   Right  (rhs): 1.1]]></Description>
+      <Description><![CDATA[The computed value is expected to be greater than the baseline, but is not
+   Computed (lhs): 1
+   Baseline (rhs): 1.1]]></Description>
     </Incident>
     <Incident type="pass" file="" line="0">
       <DataTag><![CDATA[GT:left > right]]></DataTag>
@@ -166,9 +166,9 @@
     </Incident>
     <Incident type="fail" file="qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp" line="0">
       <DataTag><![CDATA[GE:left < right]]></DataTag>
-      <Description><![CDATA[Left value is expected to be greater than or equal to right value, but is not
-   Left   (lhs): 1
-   Right  (rhs): 1.1]]></Description>
+      <Description><![CDATA[The computed value is expected to be greater than or equal to the baseline, but is not
+   Computed (lhs): 1
+   Baseline (rhs): 1.1]]></Description>
     </Incident>
     <Incident type="pass" file="" line="0">
       <DataTag><![CDATA[GE:left > right]]></DataTag>
@@ -181,21 +181,21 @@
     </Incident>
     <Incident type="fail" file="qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp" line="0">
       <DataTag><![CDATA[EQ:left < right]]></DataTag>
-      <Description><![CDATA[Left value is expected to be equal to right value, but is not
-   Left   (lhs): 0
-   Right  (rhs): 0.1]]></Description>
+      <Description><![CDATA[The computed value is expected to be equal to the baseline, but is not
+   Computed (lhs): 0
+   Baseline (rhs): 0.1]]></Description>
     </Incident>
     <Incident type="fail" file="qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp" line="0">
       <DataTag><![CDATA[EQ:left > right]]></DataTag>
-      <Description><![CDATA[Left value is expected to be equal to right value, but is not
-   Left   (lhs): 0.1
-   Right  (rhs): 0]]></Description>
+      <Description><![CDATA[The computed value is expected to be equal to the baseline, but is not
+   Computed (lhs): 0.1
+   Baseline (rhs): 0]]></Description>
     </Incident>
     <Incident type="fail" file="qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp" line="0">
       <DataTag><![CDATA[NE:left == right]]></DataTag>
-      <Description><![CDATA[Left value is expected to be different from right value, but is not
-   Left   (lhs): 0
-   Right  (rhs): 0]]></Description>
+      <Description><![CDATA[The computed value is expected to be different from the baseline, but is not
+   Computed (lhs): 0
+   Baseline (rhs): 0]]></Description>
     </Incident>
     <Incident type="pass" file="" line="0">
       <DataTag><![CDATA[NE:left < right]]></DataTag>
@@ -205,18 +205,18 @@
     </Incident>
     <Incident type="fail" file="qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp" line="0">
       <DataTag><![CDATA[LT:left == right]]></DataTag>
-      <Description><![CDATA[Left value is expected to be less than right value, but is not
-   Left   (lhs): 0
-   Right  (rhs): 0]]></Description>
+      <Description><![CDATA[The computed value is expected to be less than the baseline, but is not
+   Computed (lhs): 0
+   Baseline (rhs): 0]]></Description>
     </Incident>
     <Incident type="pass" file="" line="0">
       <DataTag><![CDATA[LT:left < right]]></DataTag>
     </Incident>
     <Incident type="fail" file="qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp" line="0">
       <DataTag><![CDATA[LT:left > right]]></DataTag>
-      <Description><![CDATA[Left value is expected to be less than right value, but is not
-   Left   (lhs): 0.1
-   Right  (rhs): 0]]></Description>
+      <Description><![CDATA[The computed value is expected to be less than the baseline, but is not
+   Computed (lhs): 0.1
+   Baseline (rhs): 0]]></Description>
     </Incident>
     <Incident type="pass" file="" line="0">
       <DataTag><![CDATA[LE:left == right]]></DataTag>
@@ -226,21 +226,21 @@
     </Incident>
     <Incident type="fail" file="qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp" line="0">
       <DataTag><![CDATA[LE:left > right]]></DataTag>
-      <Description><![CDATA[Left value is expected to be less than or equal to right value, but is not
-   Left   (lhs): 0.1
-   Right  (rhs): 0]]></Description>
+      <Description><![CDATA[The computed value is expected to be less than or equal to the baseline, but is not
+   Computed (lhs): 0.1
+   Baseline (rhs): 0]]></Description>
     </Incident>
     <Incident type="fail" file="qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp" line="0">
       <DataTag><![CDATA[GT:left == right]]></DataTag>
-      <Description><![CDATA[Left value is expected to be greater than right value, but is not
-   Left   (lhs): 0
-   Right  (rhs): 0]]></Description>
+      <Description><![CDATA[The computed value is expected to be greater than the baseline, but is not
+   Computed (lhs): 0
+   Baseline (rhs): 0]]></Description>
     </Incident>
     <Incident type="fail" file="qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp" line="0">
       <DataTag><![CDATA[GT:left < right]]></DataTag>
-      <Description><![CDATA[Left value is expected to be greater than right value, but is not
-   Left   (lhs): 0
-   Right  (rhs): 0.1]]></Description>
+      <Description><![CDATA[The computed value is expected to be greater than the baseline, but is not
+   Computed (lhs): 0
+   Baseline (rhs): 0.1]]></Description>
     </Incident>
     <Incident type="pass" file="" line="0">
       <DataTag><![CDATA[GT:left > right]]></DataTag>
@@ -250,9 +250,9 @@
     </Incident>
     <Incident type="fail" file="qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp" line="0">
       <DataTag><![CDATA[GE:left < right]]></DataTag>
-      <Description><![CDATA[Left value is expected to be greater than or equal to right value, but is not
-   Left   (lhs): 0
-   Right  (rhs): 0.1]]></Description>
+      <Description><![CDATA[The computed value is expected to be greater than or equal to the baseline, but is not
+   Computed (lhs): 0
+   Baseline (rhs): 0.1]]></Description>
     </Incident>
     <Incident type="pass" file="" line="0">
       <DataTag><![CDATA[GE:left > right]]></DataTag>
@@ -265,21 +265,21 @@
     </Incident>
     <Incident type="fail" file="qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp" line="0">
       <DataTag><![CDATA[EQ:left < right]]></DataTag>
-      <Description><![CDATA[Left value is expected to be equal to right value, but is not
-   Left   (lhs): 1
-   Right  (rhs): 2]]></Description>
+      <Description><![CDATA[The computed value is expected to be equal to the baseline, but is not
+   Computed (lhs): 1
+   Baseline (rhs): 2]]></Description>
     </Incident>
     <Incident type="fail" file="qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp" line="0">
       <DataTag><![CDATA[EQ:left > right]]></DataTag>
-      <Description><![CDATA[Left value is expected to be equal to right value, but is not
-   Left   (lhs): 2
-   Right  (rhs): 1]]></Description>
+      <Description><![CDATA[The computed value is expected to be equal to the baseline, but is not
+   Computed (lhs): 2
+   Baseline (rhs): 1]]></Description>
     </Incident>
     <Incident type="fail" file="qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp" line="0">
       <DataTag><![CDATA[NE:left == right]]></DataTag>
-      <Description><![CDATA[Left value is expected to be different from right value, but is not
-   Left   (lhs): 1
-   Right  (rhs): 1]]></Description>
+      <Description><![CDATA[The computed value is expected to be different from the baseline, but is not
+   Computed (lhs): 1
+   Baseline (rhs): 1]]></Description>
     </Incident>
     <Incident type="pass" file="" line="0">
       <DataTag><![CDATA[NE:left < right]]></DataTag>
@@ -289,18 +289,18 @@
     </Incident>
     <Incident type="fail" file="qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp" line="0">
       <DataTag><![CDATA[LT:left == right]]></DataTag>
-      <Description><![CDATA[Left value is expected to be less than right value, but is not
-   Left   (lhs): 1
-   Right  (rhs): 1]]></Description>
+      <Description><![CDATA[The computed value is expected to be less than the baseline, but is not
+   Computed (lhs): 1
+   Baseline (rhs): 1]]></Description>
     </Incident>
     <Incident type="pass" file="" line="0">
       <DataTag><![CDATA[LT:left < right]]></DataTag>
     </Incident>
     <Incident type="fail" file="qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp" line="0">
       <DataTag><![CDATA[LT:left > right]]></DataTag>
-      <Description><![CDATA[Left value is expected to be less than right value, but is not
-   Left   (lhs): 2
-   Right  (rhs): 1]]></Description>
+      <Description><![CDATA[The computed value is expected to be less than the baseline, but is not
+   Computed (lhs): 2
+   Baseline (rhs): 1]]></Description>
     </Incident>
     <Incident type="pass" file="" line="0">
       <DataTag><![CDATA[LE:left == right]]></DataTag>
@@ -310,21 +310,21 @@
     </Incident>
     <Incident type="fail" file="qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp" line="0">
       <DataTag><![CDATA[LE:left > right]]></DataTag>
-      <Description><![CDATA[Left value is expected to be less than or equal to right value, but is not
-   Left   (lhs): 2
-   Right  (rhs): 1]]></Description>
+      <Description><![CDATA[The computed value is expected to be less than or equal to the baseline, but is not
+   Computed (lhs): 2
+   Baseline (rhs): 1]]></Description>
     </Incident>
     <Incident type="fail" file="qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp" line="0">
       <DataTag><![CDATA[GT:left == right]]></DataTag>
-      <Description><![CDATA[Left value is expected to be greater than right value, but is not
-   Left   (lhs): 1
-   Right  (rhs): 1]]></Description>
+      <Description><![CDATA[The computed value is expected to be greater than the baseline, but is not
+   Computed (lhs): 1
+   Baseline (rhs): 1]]></Description>
     </Incident>
     <Incident type="fail" file="qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp" line="0">
       <DataTag><![CDATA[GT:left < right]]></DataTag>
-      <Description><![CDATA[Left value is expected to be greater than right value, but is not
-   Left   (lhs): 1
-   Right  (rhs): 2]]></Description>
+      <Description><![CDATA[The computed value is expected to be greater than the baseline, but is not
+   Computed (lhs): 1
+   Baseline (rhs): 2]]></Description>
     </Incident>
     <Incident type="pass" file="" line="0">
       <DataTag><![CDATA[GT:left > right]]></DataTag>
@@ -334,9 +334,9 @@
     </Incident>
     <Incident type="fail" file="qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp" line="0">
       <DataTag><![CDATA[GE:left < right]]></DataTag>
-      <Description><![CDATA[Left value is expected to be greater than or equal to right value, but is not
-   Left   (lhs): 1
-   Right  (rhs): 2]]></Description>
+      <Description><![CDATA[The computed value is expected to be greater than or equal to the baseline, but is not
+   Computed (lhs): 1
+   Baseline (rhs): 2]]></Description>
     </Incident>
     <Incident type="pass" file="" line="0">
       <DataTag><![CDATA[GE:left > right]]></DataTag>
@@ -349,21 +349,21 @@
     </Incident>
     <Incident type="fail" file="qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp" line="0">
       <DataTag><![CDATA[EQ:left < right]]></DataTag>
-      <Description><![CDATA[Left value is expected to be equal to right value, but is not
-   Left   (lhs): "nullptr"
-   Right  (rhs): 1]]></Description>
+      <Description><![CDATA[The computed value is expected to be equal to the baseline, but is not
+   Computed (lhs): "nullptr"
+   Baseline (rhs): 1]]></Description>
     </Incident>
     <Incident type="fail" file="qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp" line="0">
       <DataTag><![CDATA[EQ:left > right]]></DataTag>
-      <Description><![CDATA[Left value is expected to be equal to right value, but is not
-   Left   (lhs): 1
-   Right  (rhs): "nullptr"]]></Description>
+      <Description><![CDATA[The computed value is expected to be equal to the baseline, but is not
+   Computed (lhs): 1
+   Baseline (rhs): "nullptr"]]></Description>
     </Incident>
     <Incident type="fail" file="qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp" line="0">
       <DataTag><![CDATA[NE:left == right]]></DataTag>
-      <Description><![CDATA[Left value is expected to be different from right value, but is not
-   Left   (lhs): "nullptr"
-   Right  (rhs): "nullptr"]]></Description>
+      <Description><![CDATA[The computed value is expected to be different from the baseline, but is not
+   Computed (lhs): "nullptr"
+   Baseline (rhs): "nullptr"]]></Description>
     </Incident>
     <Incident type="pass" file="" line="0">
       <DataTag><![CDATA[NE:left < right]]></DataTag>
@@ -373,18 +373,18 @@
     </Incident>
     <Incident type="fail" file="qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp" line="0">
       <DataTag><![CDATA[LT:left == right]]></DataTag>
-      <Description><![CDATA[Left value is expected to be less than right value, but is not
-   Left   (lhs): "nullptr"
-   Right  (rhs): "nullptr"]]></Description>
+      <Description><![CDATA[The computed value is expected to be less than the baseline, but is not
+   Computed (lhs): "nullptr"
+   Baseline (rhs): "nullptr"]]></Description>
     </Incident>
     <Incident type="pass" file="" line="0">
       <DataTag><![CDATA[LT:left < right]]></DataTag>
     </Incident>
     <Incident type="fail" file="qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp" line="0">
       <DataTag><![CDATA[LT:left > right]]></DataTag>
-      <Description><![CDATA[Left value is expected to be less than right value, but is not
-   Left   (lhs): 1
-   Right  (rhs): "nullptr"]]></Description>
+      <Description><![CDATA[The computed value is expected to be less than the baseline, but is not
+   Computed (lhs): 1
+   Baseline (rhs): "nullptr"]]></Description>
     </Incident>
     <Incident type="pass" file="" line="0">
       <DataTag><![CDATA[LE:left == right]]></DataTag>
@@ -394,21 +394,21 @@
     </Incident>
     <Incident type="fail" file="qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp" line="0">
       <DataTag><![CDATA[LE:left > right]]></DataTag>
-      <Description><![CDATA[Left value is expected to be less than or equal to right value, but is not
-   Left   (lhs): 1
-   Right  (rhs): "nullptr"]]></Description>
+      <Description><![CDATA[The computed value is expected to be less than or equal to the baseline, but is not
+   Computed (lhs): 1
+   Baseline (rhs): "nullptr"]]></Description>
     </Incident>
     <Incident type="fail" file="qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp" line="0">
       <DataTag><![CDATA[GT:left == right]]></DataTag>
-      <Description><![CDATA[Left value is expected to be greater than right value, but is not
-   Left   (lhs): "nullptr"
-   Right  (rhs): "nullptr"]]></Description>
+      <Description><![CDATA[The computed value is expected to be greater than the baseline, but is not
+   Computed (lhs): "nullptr"
+   Baseline (rhs): "nullptr"]]></Description>
     </Incident>
     <Incident type="fail" file="qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp" line="0">
       <DataTag><![CDATA[GT:left < right]]></DataTag>
-      <Description><![CDATA[Left value is expected to be greater than right value, but is not
-   Left   (lhs): "nullptr"
-   Right  (rhs): 1]]></Description>
+      <Description><![CDATA[The computed value is expected to be greater than the baseline, but is not
+   Computed (lhs): "nullptr"
+   Baseline (rhs): 1]]></Description>
     </Incident>
     <Incident type="pass" file="" line="0">
       <DataTag><![CDATA[GT:left > right]]></DataTag>
@@ -418,9 +418,9 @@
     </Incident>
     <Incident type="fail" file="qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp" line="0">
       <DataTag><![CDATA[GE:left < right]]></DataTag>
-      <Description><![CDATA[Left value is expected to be greater than or equal to right value, but is not
-   Left   (lhs): "nullptr"
-   Right  (rhs): 1]]></Description>
+      <Description><![CDATA[The computed value is expected to be greater than or equal to the baseline, but is not
+   Computed (lhs): "nullptr"
+   Baseline (rhs): 1]]></Description>
     </Incident>
     <Incident type="pass" file="" line="0">
       <DataTag><![CDATA[GE:left > right]]></DataTag>
@@ -433,21 +433,21 @@
     </Incident>
     <Incident type="fail" file="qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp" line="0">
       <DataTag><![CDATA[EQ:left < right]]></DataTag>
-      <Description><![CDATA[Left value is expected to be equal to right value, but is not
-   Left   (lhs): 0
-   Right  (rhs): 1]]></Description>
+      <Description><![CDATA[The computed value is expected to be equal to the baseline, but is not
+   Computed (lhs): 0
+   Baseline (rhs): 1]]></Description>
     </Incident>
     <Incident type="fail" file="qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp" line="0">
       <DataTag><![CDATA[EQ:left > right]]></DataTag>
-      <Description><![CDATA[Left value is expected to be equal to right value, but is not
-   Left   (lhs): 1
-   Right  (rhs): 0]]></Description>
+      <Description><![CDATA[The computed value is expected to be equal to the baseline, but is not
+   Computed (lhs): 1
+   Baseline (rhs): 0]]></Description>
     </Incident>
     <Incident type="fail" file="qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp" line="0">
       <DataTag><![CDATA[NE:left == right]]></DataTag>
-      <Description><![CDATA[Left value is expected to be different from right value, but is not
-   Left   (lhs): 0
-   Right  (rhs): 0]]></Description>
+      <Description><![CDATA[The computed value is expected to be different from the baseline, but is not
+   Computed (lhs): 0
+   Baseline (rhs): 0]]></Description>
     </Incident>
     <Incident type="pass" file="" line="0">
       <DataTag><![CDATA[NE:left < right]]></DataTag>
@@ -457,18 +457,18 @@
     </Incident>
     <Incident type="fail" file="qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp" line="0">
       <DataTag><![CDATA[LT:left == right]]></DataTag>
-      <Description><![CDATA[Left value is expected to be less than right value, but is not
-   Left   (lhs): 0
-   Right  (rhs): 0]]></Description>
+      <Description><![CDATA[The computed value is expected to be less than the baseline, but is not
+   Computed (lhs): 0
+   Baseline (rhs): 0]]></Description>
     </Incident>
     <Incident type="pass" file="" line="0">
       <DataTag><![CDATA[LT:left < right]]></DataTag>
     </Incident>
     <Incident type="fail" file="qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp" line="0">
       <DataTag><![CDATA[LT:left > right]]></DataTag>
-      <Description><![CDATA[Left value is expected to be less than right value, but is not
-   Left   (lhs): 1
-   Right  (rhs): 0]]></Description>
+      <Description><![CDATA[The computed value is expected to be less than the baseline, but is not
+   Computed (lhs): 1
+   Baseline (rhs): 0]]></Description>
     </Incident>
     <Incident type="pass" file="" line="0">
       <DataTag><![CDATA[LE:left == right]]></DataTag>
@@ -478,21 +478,21 @@
     </Incident>
     <Incident type="fail" file="qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp" line="0">
       <DataTag><![CDATA[LE:left > right]]></DataTag>
-      <Description><![CDATA[Left value is expected to be less than or equal to right value, but is not
-   Left   (lhs): 1
-   Right  (rhs): 0]]></Description>
+      <Description><![CDATA[The computed value is expected to be less than or equal to the baseline, but is not
+   Computed (lhs): 1
+   Baseline (rhs): 0]]></Description>
     </Incident>
     <Incident type="fail" file="qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp" line="0">
       <DataTag><![CDATA[GT:left == right]]></DataTag>
-      <Description><![CDATA[Left value is expected to be greater than right value, but is not
-   Left   (lhs): 0
-   Right  (rhs): 0]]></Description>
+      <Description><![CDATA[The computed value is expected to be greater than the baseline, but is not
+   Computed (lhs): 0
+   Baseline (rhs): 0]]></Description>
     </Incident>
     <Incident type="fail" file="qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp" line="0">
       <DataTag><![CDATA[GT:left < right]]></DataTag>
-      <Description><![CDATA[Left value is expected to be greater than right value, but is not
-   Left   (lhs): 0
-   Right  (rhs): 1]]></Description>
+      <Description><![CDATA[The computed value is expected to be greater than the baseline, but is not
+   Computed (lhs): 0
+   Baseline (rhs): 1]]></Description>
     </Incident>
     <Incident type="pass" file="" line="0">
       <DataTag><![CDATA[GT:left > right]]></DataTag>
@@ -502,9 +502,9 @@
     </Incident>
     <Incident type="fail" file="qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp" line="0">
       <DataTag><![CDATA[GE:left < right]]></DataTag>
-      <Description><![CDATA[Left value is expected to be greater than or equal to right value, but is not
-   Left   (lhs): 0
-   Right  (rhs): 1]]></Description>
+      <Description><![CDATA[The computed value is expected to be greater than or equal to the baseline, but is not
+   Computed (lhs): 0
+   Baseline (rhs): 1]]></Description>
     </Incident>
     <Incident type="pass" file="" line="0">
       <DataTag><![CDATA[GE:left > right]]></DataTag>
@@ -517,21 +517,21 @@
     </Incident>
     <Incident type="fail" file="qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp" line="0">
       <DataTag><![CDATA[EQ:left < right]]></DataTag>
-      <Description><![CDATA[Left value is expected to be equal to right value, but is not
-   Left   (lhs): Monday
-   Right  (rhs): Sunday]]></Description>
+      <Description><![CDATA[The computed value is expected to be equal to the baseline, but is not
+   Computed (lhs): Monday
+   Baseline (rhs): Sunday]]></Description>
     </Incident>
     <Incident type="fail" file="qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp" line="0">
       <DataTag><![CDATA[EQ:left > right]]></DataTag>
-      <Description><![CDATA[Left value is expected to be equal to right value, but is not
-   Left   (lhs): Sunday
-   Right  (rhs): Monday]]></Description>
+      <Description><![CDATA[The computed value is expected to be equal to the baseline, but is not
+   Computed (lhs): Sunday
+   Baseline (rhs): Monday]]></Description>
     </Incident>
     <Incident type="fail" file="qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp" line="0">
       <DataTag><![CDATA[NE:left == right]]></DataTag>
-      <Description><![CDATA[Left value is expected to be different from right value, but is not
-   Left   (lhs): Monday
-   Right  (rhs): Monday]]></Description>
+      <Description><![CDATA[The computed value is expected to be different from the baseline, but is not
+   Computed (lhs): Monday
+   Baseline (rhs): Monday]]></Description>
     </Incident>
     <Incident type="pass" file="" line="0">
       <DataTag><![CDATA[NE:left < right]]></DataTag>
@@ -541,18 +541,18 @@
     </Incident>
     <Incident type="fail" file="qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp" line="0">
       <DataTag><![CDATA[LT:left == right]]></DataTag>
-      <Description><![CDATA[Left value is expected to be less than right value, but is not
-   Left   (lhs): Monday
-   Right  (rhs): Monday]]></Description>
+      <Description><![CDATA[The computed value is expected to be less than the baseline, but is not
+   Computed (lhs): Monday
+   Baseline (rhs): Monday]]></Description>
     </Incident>
     <Incident type="pass" file="" line="0">
       <DataTag><![CDATA[LT:left < right]]></DataTag>
     </Incident>
     <Incident type="fail" file="qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp" line="0">
       <DataTag><![CDATA[LT:left > right]]></DataTag>
-      <Description><![CDATA[Left value is expected to be less than right value, but is not
-   Left   (lhs): Sunday
-   Right  (rhs): Monday]]></Description>
+      <Description><![CDATA[The computed value is expected to be less than the baseline, but is not
+   Computed (lhs): Sunday
+   Baseline (rhs): Monday]]></Description>
     </Incident>
     <Incident type="pass" file="" line="0">
       <DataTag><![CDATA[LE:left == right]]></DataTag>
@@ -562,21 +562,21 @@
     </Incident>
     <Incident type="fail" file="qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp" line="0">
       <DataTag><![CDATA[LE:left > right]]></DataTag>
-      <Description><![CDATA[Left value is expected to be less than or equal to right value, but is not
-   Left   (lhs): Sunday
-   Right  (rhs): Monday]]></Description>
+      <Description><![CDATA[The computed value is expected to be less than or equal to the baseline, but is not
+   Computed (lhs): Sunday
+   Baseline (rhs): Monday]]></Description>
     </Incident>
     <Incident type="fail" file="qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp" line="0">
       <DataTag><![CDATA[GT:left == right]]></DataTag>
-      <Description><![CDATA[Left value is expected to be greater than right value, but is not
-   Left   (lhs): Monday
-   Right  (rhs): Monday]]></Description>
+      <Description><![CDATA[The computed value is expected to be greater than the baseline, but is not
+   Computed (lhs): Monday
+   Baseline (rhs): Monday]]></Description>
     </Incident>
     <Incident type="fail" file="qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp" line="0">
       <DataTag><![CDATA[GT:left < right]]></DataTag>
-      <Description><![CDATA[Left value is expected to be greater than right value, but is not
-   Left   (lhs): Monday
-   Right  (rhs): Sunday]]></Description>
+      <Description><![CDATA[The computed value is expected to be greater than the baseline, but is not
+   Computed (lhs): Monday
+   Baseline (rhs): Sunday]]></Description>
     </Incident>
     <Incident type="pass" file="" line="0">
       <DataTag><![CDATA[GT:left > right]]></DataTag>
@@ -586,9 +586,9 @@
     </Incident>
     <Incident type="fail" file="qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp" line="0">
       <DataTag><![CDATA[GE:left < right]]></DataTag>
-      <Description><![CDATA[Left value is expected to be greater than or equal to right value, but is not
-   Left   (lhs): Monday
-   Right  (rhs): Sunday]]></Description>
+      <Description><![CDATA[The computed value is expected to be greater than or equal to the baseline, but is not
+   Computed (lhs): Monday
+   Baseline (rhs): Sunday]]></Description>
     </Incident>
     <Incident type="pass" file="" line="0">
       <DataTag><![CDATA[GE:left > right]]></DataTag>
@@ -601,21 +601,21 @@
     </Incident>
     <Incident type="fail" file="qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp" line="0">
       <DataTag><![CDATA[EQ:left < right]]></DataTag>
-      <Description><![CDATA[Left value is expected to be equal to right value, but is not
-   Left   (lhs): MyClass(1)
-   Right  (rhs): MyClass(2)]]></Description>
+      <Description><![CDATA[The computed value is expected to be equal to the baseline, but is not
+   Computed (lhs): MyClass(1)
+   Baseline (rhs): MyClass(2)]]></Description>
     </Incident>
     <Incident type="fail" file="qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp" line="0">
       <DataTag><![CDATA[EQ:left > right]]></DataTag>
-      <Description><![CDATA[Left value is expected to be equal to right value, but is not
-   Left   (lhs): MyClass(2)
-   Right  (rhs): MyClass(1)]]></Description>
+      <Description><![CDATA[The computed value is expected to be equal to the baseline, but is not
+   Computed (lhs): MyClass(2)
+   Baseline (rhs): MyClass(1)]]></Description>
     </Incident>
     <Incident type="fail" file="qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp" line="0">
       <DataTag><![CDATA[NE:left == right]]></DataTag>
-      <Description><![CDATA[Left value is expected to be different from right value, but is not
-   Left   (lhs): MyClass(1)
-   Right  (rhs): MyClass(1)]]></Description>
+      <Description><![CDATA[The computed value is expected to be different from the baseline, but is not
+   Computed (lhs): MyClass(1)
+   Baseline (rhs): MyClass(1)]]></Description>
     </Incident>
     <Incident type="pass" file="" line="0">
       <DataTag><![CDATA[NE:left < right]]></DataTag>
@@ -625,18 +625,18 @@
     </Incident>
     <Incident type="fail" file="qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp" line="0">
       <DataTag><![CDATA[LT:left == right]]></DataTag>
-      <Description><![CDATA[Left value is expected to be less than right value, but is not
-   Left   (lhs): MyClass(1)
-   Right  (rhs): MyClass(1)]]></Description>
+      <Description><![CDATA[The computed value is expected to be less than the baseline, but is not
+   Computed (lhs): MyClass(1)
+   Baseline (rhs): MyClass(1)]]></Description>
     </Incident>
     <Incident type="pass" file="" line="0">
       <DataTag><![CDATA[LT:left < right]]></DataTag>
     </Incident>
     <Incident type="fail" file="qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp" line="0">
       <DataTag><![CDATA[LT:left > right]]></DataTag>
-      <Description><![CDATA[Left value is expected to be less than right value, but is not
-   Left   (lhs): MyClass(2)
-   Right  (rhs): MyClass(1)]]></Description>
+      <Description><![CDATA[The computed value is expected to be less than the baseline, but is not
+   Computed (lhs): MyClass(2)
+   Baseline (rhs): MyClass(1)]]></Description>
     </Incident>
     <Incident type="pass" file="" line="0">
       <DataTag><![CDATA[LE:left == right]]></DataTag>
@@ -646,21 +646,21 @@
     </Incident>
     <Incident type="fail" file="qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp" line="0">
       <DataTag><![CDATA[LE:left > right]]></DataTag>
-      <Description><![CDATA[Left value is expected to be less than or equal to right value, but is not
-   Left   (lhs): MyClass(2)
-   Right  (rhs): MyClass(1)]]></Description>
+      <Description><![CDATA[The computed value is expected to be less than or equal to the baseline, but is not
+   Computed (lhs): MyClass(2)
+   Baseline (rhs): MyClass(1)]]></Description>
     </Incident>
     <Incident type="fail" file="qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp" line="0">
       <DataTag><![CDATA[GT:left == right]]></DataTag>
-      <Description><![CDATA[Left value is expected to be greater than right value, but is not
-   Left   (lhs): MyClass(1)
-   Right  (rhs): MyClass(1)]]></Description>
+      <Description><![CDATA[The computed value is expected to be greater than the baseline, but is not
+   Computed (lhs): MyClass(1)
+   Baseline (rhs): MyClass(1)]]></Description>
     </Incident>
     <Incident type="fail" file="qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp" line="0">
       <DataTag><![CDATA[GT:left < right]]></DataTag>
-      <Description><![CDATA[Left value is expected to be greater than right value, but is not
-   Left   (lhs): MyClass(1)
-   Right  (rhs): MyClass(2)]]></Description>
+      <Description><![CDATA[The computed value is expected to be greater than the baseline, but is not
+   Computed (lhs): MyClass(1)
+   Baseline (rhs): MyClass(2)]]></Description>
     </Incident>
     <Incident type="pass" file="" line="0">
       <DataTag><![CDATA[GT:left > right]]></DataTag>
@@ -670,9 +670,9 @@
     </Incident>
     <Incident type="fail" file="qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp" line="0">
       <DataTag><![CDATA[GE:left < right]]></DataTag>
-      <Description><![CDATA[Left value is expected to be greater than or equal to right value, but is not
-   Left   (lhs): MyClass(1)
-   Right  (rhs): MyClass(2)]]></Description>
+      <Description><![CDATA[The computed value is expected to be greater than or equal to the baseline, but is not
+   Computed (lhs): MyClass(1)
+   Baseline (rhs): MyClass(2)]]></Description>
     </Incident>
     <Incident type="pass" file="" line="0">
       <DataTag><![CDATA[GE:left > right]]></DataTag>
@@ -682,9 +682,9 @@
   <TestFunction name="checkComparisonForTemporaryObjects">
     <Incident type="fail" file="qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp" line="0">
       <DataTag><![CDATA[EQ]]></DataTag>
-      <Description><![CDATA[Left value is expected to be equal to right value, but is not
-   Left   (getClassForValue(0).getValuePointer()): MyClass(2) on memory address with index 0
-   Right  (getClassForValue(1).getValuePointer()): MyClass(1) on memory address with index 1]]></Description>
+      <Description><![CDATA[The computed value is expected to be equal to the baseline, but is not
+   Computed (getClassForValue(0).getValuePointer()): MyClass(2) on memory address with index 0
+   Baseline (getClassForValue(1).getValuePointer()): MyClass(1) on memory address with index 1]]></Description>
     </Incident>
     <Incident type="pass" file="" line="0">
       <DataTag><![CDATA[NE]]></DataTag>
@@ -697,15 +697,15 @@
     </Incident>
     <Incident type="fail" file="qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp" line="0">
       <DataTag><![CDATA[GT]]></DataTag>
-      <Description><![CDATA[Left value is expected to be greater than right value, but is not
-   Left   (getClassForValue(0).getValuePointer()): MyClass(2) on memory address with index 0
-   Right  (getClassForValue(1).getValuePointer()): MyClass(1) on memory address with index 1]]></Description>
+      <Description><![CDATA[The computed value is expected to be greater than the baseline, but is not
+   Computed (getClassForValue(0).getValuePointer()): MyClass(2) on memory address with index 0
+   Baseline (getClassForValue(1).getValuePointer()): MyClass(1) on memory address with index 1]]></Description>
     </Incident>
     <Incident type="fail" file="qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp" line="0">
       <DataTag><![CDATA[GE]]></DataTag>
-      <Description><![CDATA[Left value is expected to be greater than or equal to right value, but is not
-   Left   (getClassForValue(0).getValuePointer()): MyClass(2) on memory address with index 0
-   Right  (getClassForValue(1).getValuePointer()): MyClass(1) on memory address with index 1]]></Description>
+      <Description><![CDATA[The computed value is expected to be greater than or equal to the baseline, but is not
+   Computed (getClassForValue(0).getValuePointer()): MyClass(2) on memory address with index 0
+   Baseline (getClassForValue(1).getValuePointer()): MyClass(1) on memory address with index 1]]></Description>
     </Incident>
     <Duration msecs="0"/>
   </TestFunction>
@@ -718,21 +718,21 @@
     </Incident>
     <Incident type="fail" file="qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp" line="0">
       <DataTag><![CDATA[LT]]></DataTag>
-      <Description><![CDATA[Left value is expected to be less than right value, but is not
-   Left   (c)                         : ClassWithDeferredSetter(1)
-   Right  (ClassWithDeferredSetter(0)): ClassWithDeferredSetter(0)]]></Description>
+      <Description><![CDATA[The computed value is expected to be less than the baseline, but is not
+   Computed (c)                         : ClassWithDeferredSetter(1)
+   Baseline (ClassWithDeferredSetter(0)): ClassWithDeferredSetter(0)]]></Description>
     </Incident>
     <Incident type="fail" file="qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp" line="0">
       <DataTag><![CDATA[LE]]></DataTag>
-      <Description><![CDATA[Left value is expected to be less than or equal to right value, but is not
-   Left   (c)                          : ClassWithDeferredSetter(1)
-   Right  (ClassWithDeferredSetter(-1)): ClassWithDeferredSetter(-1)]]></Description>
+      <Description><![CDATA[The computed value is expected to be less than or equal to the baseline, but is not
+   Computed (c)                          : ClassWithDeferredSetter(1)
+   Baseline (ClassWithDeferredSetter(-1)): ClassWithDeferredSetter(-1)]]></Description>
     </Incident>
     <Incident type="fail" file="qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp" line="0">
       <DataTag><![CDATA[GT]]></DataTag>
-      <Description><![CDATA[Left value is expected to be greater than right value, but is not
-   Left   (c)                         : ClassWithDeferredSetter(1)
-   Right  (ClassWithDeferredSetter(1)): ClassWithDeferredSetter(1)]]></Description>
+      <Description><![CDATA[The computed value is expected to be greater than the baseline, but is not
+   Computed (c)                         : ClassWithDeferredSetter(1)
+   Baseline (ClassWithDeferredSetter(1)): ClassWithDeferredSetter(1)]]></Description>
     </Incident>
     <Incident type="pass" file="" line="0">
       <DataTag><![CDATA[GE]]></DataTag>
diff --git a/tests/auto/testlib/selftests/expected_extendedcompare.tap b/tests/auto/testlib/selftests/expected_extendedcompare.tap
index 31562636..25d30c3e 100644
--- a/tests/auto/testlib/selftests/expected_extendedcompare.tap
+++ b/tests/auto/testlib/selftests/expected_extendedcompare.tap
@@ -5,7 +5,7 @@ ok 2 - compareInts(EQ:left == right)
 not ok 3 - compareInts(EQ:left < right)
   ---
   type: QCOMPARE_EQ
-  message: Left value is expected to be equal to right value, but is not
+  message: The computed value is expected to be equal to the baseline, but is not
   wanted: == 2 (rhs)
   found: 1 (lhs)
   expected: == 2 (rhs)
@@ -17,7 +17,7 @@ not ok 3 - compareInts(EQ:left < right)
 not ok 4 - compareInts(EQ:left > right)
   ---
   type: QCOMPARE_EQ
-  message: Left value is expected to be equal to right value, but is not
+  message: The computed value is expected to be equal to the baseline, but is not
   wanted: == 1 (rhs)
   found: 2 (lhs)
   expected: == 1 (rhs)
@@ -29,7 +29,7 @@ not ok 4 - compareInts(EQ:left > right)
 not ok 5 - compareInts(NE:left == right)
   ---
   type: QCOMPARE_NE
-  message: Left value is expected to be different from right value, but is not
+  message: The computed value is expected to be different from the baseline, but is not
   wanted: != 1 (rhs)
   found: 1 (lhs)
   expected: != 1 (rhs)
@@ -43,7 +43,7 @@ ok 7 - compareInts(NE:left > right)
 not ok 8 - compareInts(LT:left == right)
   ---
   type: QCOMPARE_LT
-  message: Left value is expected to be less than right value, but is not
+  message: The computed value is expected to be less than the baseline, but is not
   wanted: < 1 (rhs)
   found: 1 (lhs)
   expected: < 1 (rhs)
@@ -56,7 +56,7 @@ ok 9 - compareInts(LT:left < right)
 not ok 10 - compareInts(LT:left > right)
   ---
   type: QCOMPARE_LT
-  message: Left value is expected to be less than right value, but is not
+  message: The computed value is expected to be less than the baseline, but is not
   wanted: < 1 (rhs)
   found: 2 (lhs)
   expected: < 1 (rhs)
@@ -70,7 +70,7 @@ ok 12 - compareInts(LE:left < right)
 not ok 13 - compareInts(LE:left > right)
   ---
   type: QCOMPARE_LE
-  message: Left value is expected to be less than or equal to right value, but is not
+  message: The computed value is expected to be less than or equal to the baseline, but is not
   wanted: <= 1 (rhs)
   found: 2 (lhs)
   expected: <= 1 (rhs)
@@ -82,7 +82,7 @@ not ok 13 - compareInts(LE:left > right)
 not ok 14 - compareInts(GT:left == right)
   ---
   type: QCOMPARE_GT
-  message: Left value is expected to be greater than right value, but is not
+  message: The computed value is expected to be greater than the baseline, but is not
   wanted: > 1 (rhs)
   found: 1 (lhs)
   expected: > 1 (rhs)
@@ -94,7 +94,7 @@ not ok 14 - compareInts(GT:left == right)
 not ok 15 - compareInts(GT:left < right)
   ---
   type: QCOMPARE_GT
-  message: Left value is expected to be greater than right value, but is not
+  message: The computed value is expected to be greater than the baseline, but is not
   wanted: > 2 (rhs)
   found: 1 (lhs)
   expected: > 2 (rhs)
@@ -108,7 +108,7 @@ ok 17 - compareInts(GE:left == right)
 not ok 18 - compareInts(GE:left < right)
   ---
   type: QCOMPARE_GE
-  message: Left value is expected to be greater than or equal to right value, but is not
+  message: The computed value is expected to be greater than or equal to the baseline, but is not
   wanted: >= 2 (rhs)
   found: 1 (lhs)
   expected: >= 2 (rhs)
@@ -122,7 +122,7 @@ ok 20 - compareFloats(EQ:left == right)
 not ok 21 - compareFloats(EQ:left < right)
   ---
   type: QCOMPARE_EQ
-  message: Left value is expected to be equal to right value, but is not
+  message: The computed value is expected to be equal to the baseline, but is not
   wanted: == 1.1 (rhs)
   found: 1 (lhs)
   expected: == 1.1 (rhs)
@@ -134,7 +134,7 @@ not ok 21 - compareFloats(EQ:left < right)
 not ok 22 - compareFloats(EQ:left > right)
   ---
   type: QCOMPARE_EQ
-  message: Left value is expected to be equal to right value, but is not
+  message: The computed value is expected to be equal to the baseline, but is not
   wanted: == 1 (rhs)
   found: 1.1 (lhs)
   expected: == 1 (rhs)
@@ -146,7 +146,7 @@ not ok 22 - compareFloats(EQ:left > right)
 not ok 23 - compareFloats(NE:left == right)
   ---
   type: QCOMPARE_NE
-  message: Left value is expected to be different from right value, but is not
+  message: The computed value is expected to be different from the baseline, but is not
   wanted: != 1 (rhs)
   found: 1 (lhs)
   expected: != 1 (rhs)
@@ -160,7 +160,7 @@ ok 25 - compareFloats(NE:left > right)
 not ok 26 - compareFloats(LT:left == right)
   ---
   type: QCOMPARE_LT
-  message: Left value is expected to be less than right value, but is not
+  message: The computed value is expected to be less than the baseline, but is not
   wanted: < 1 (rhs)
   found: 1 (lhs)
   expected: < 1 (rhs)
@@ -173,7 +173,7 @@ ok 27 - compareFloats(LT:left < right)
 not ok 28 - compareFloats(LT:left > right)
   ---
   type: QCOMPARE_LT
-  message: Left value is expected to be less than right value, but is not
+  message: The computed value is expected to be less than the baseline, but is not
   wanted: < 1 (rhs)
   found: 1.1 (lhs)
   expected: < 1 (rhs)
@@ -187,7 +187,7 @@ ok 30 - compareFloats(LE:left < right)
 not ok 31 - compareFloats(LE:left > right)
   ---
   type: QCOMPARE_LE
-  message: Left value is expected to be less than or equal to right value, but is not
+  message: The computed value is expected to be less than or equal to the baseline, but is not
   wanted: <= 1 (rhs)
   found: 1.1 (lhs)
   expected: <= 1 (rhs)
@@ -199,7 +199,7 @@ not ok 31 - compareFloats(LE:left > right)
 not ok 32 - compareFloats(GT:left == right)
   ---
   type: QCOMPARE_GT
-  message: Left value is expected to be greater than right value, but is not
+  message: The computed value is expected to be greater than the baseline, but is not
   wanted: > 1 (rhs)
   found: 1 (lhs)
   expected: > 1 (rhs)
@@ -211,7 +211,7 @@ not ok 32 - compareFloats(GT:left == right)
 not ok 33 - compareFloats(GT:left < right)
   ---
   type: QCOMPARE_GT
-  message: Left value is expected to be greater than right value, but is not
+  message: The computed value is expected to be greater than the baseline, but is not
   wanted: > 1.1 (rhs)
   found: 1 (lhs)
   expected: > 1.1 (rhs)
@@ -225,7 +225,7 @@ ok 35 - compareFloats(GE:left == right)
 not ok 36 - compareFloats(GE:left < right)
   ---
   type: QCOMPARE_GE
-  message: Left value is expected to be greater than or equal to right value, but is not
+  message: The computed value is expected to be greater than or equal to the baseline, but is not
   wanted: >= 1.1 (rhs)
   found: 1 (lhs)
   expected: >= 1.1 (rhs)
@@ -239,7 +239,7 @@ ok 38 - compareDoubles(EQ:left == right)
 not ok 39 - compareDoubles(EQ:left < right)
   ---
   type: QCOMPARE_EQ
-  message: Left value is expected to be equal to right value, but is not
+  message: The computed value is expected to be equal to the baseline, but is not
   wanted: == 0.1 (rhs)
   found: 0 (lhs)
   expected: == 0.1 (rhs)
@@ -251,7 +251,7 @@ not ok 39 - compareDoubles(EQ:left < right)
 not ok 40 - compareDoubles(EQ:left > right)
   ---
   type: QCOMPARE_EQ
-  message: Left value is expected to be equal to right value, but is not
+  message: The computed value is expected to be equal to the baseline, but is not
   wanted: == 0 (rhs)
   found: 0.1 (lhs)
   expected: == 0 (rhs)
@@ -263,7 +263,7 @@ not ok 40 - compareDoubles(EQ:left > right)
 not ok 41 - compareDoubles(NE:left == right)
   ---
   type: QCOMPARE_NE
-  message: Left value is expected to be different from right value, but is not
+  message: The computed value is expected to be different from the baseline, but is not
   wanted: != 0 (rhs)
   found: 0 (lhs)
   expected: != 0 (rhs)
@@ -277,7 +277,7 @@ ok 43 - compareDoubles(NE:left > right)
 not ok 44 - compareDoubles(LT:left == right)
   ---
   type: QCOMPARE_LT
-  message: Left value is expected to be less than right value, but is not
+  message: The computed value is expected to be less than the baseline, but is not
   wanted: < 0 (rhs)
   found: 0 (lhs)
   expected: < 0 (rhs)
@@ -290,7 +290,7 @@ ok 45 - compareDoubles(LT:left < right)
 not ok 46 - compareDoubles(LT:left > right)
   ---
   type: QCOMPARE_LT
-  message: Left value is expected to be less than right value, but is not
+  message: The computed value is expected to be less than the baseline, but is not
   wanted: < 0 (rhs)
   found: 0.1 (lhs)
   expected: < 0 (rhs)
@@ -304,7 +304,7 @@ ok 48 - compareDoubles(LE:left < right)
 not ok 49 - compareDoubles(LE:left > right)
   ---
   type: QCOMPARE_LE
-  message: Left value is expected to be less than or equal to right value, but is not
+  message: The computed value is expected to be less than or equal to the baseline, but is not
   wanted: <= 0 (rhs)
   found: 0.1 (lhs)
   expected: <= 0 (rhs)
@@ -316,7 +316,7 @@ not ok 49 - compareDoubles(LE:left > right)
 not ok 50 - compareDoubles(GT:left == right)
   ---
   type: QCOMPARE_GT
-  message: Left value is expected to be greater than right value, but is not
+  message: The computed value is expected to be greater than the baseline, but is not
   wanted: > 0 (rhs)
   found: 0 (lhs)
   expected: > 0 (rhs)
@@ -328,7 +328,7 @@ not ok 50 - compareDoubles(GT:left == right)
 not ok 51 - compareDoubles(GT:left < right)
   ---
   type: QCOMPARE_GT
-  message: Left value is expected to be greater than right value, but is not
+  message: The computed value is expected to be greater than the baseline, but is not
   wanted: > 0.1 (rhs)
   found: 0 (lhs)
   expected: > 0.1 (rhs)
@@ -342,7 +342,7 @@ ok 53 - compareDoubles(GE:left == right)
 not ok 54 - compareDoubles(GE:left < right)
   ---
   type: QCOMPARE_GE
-  message: Left value is expected to be greater than or equal to right value, but is not
+  message: The computed value is expected to be greater than or equal to the baseline, but is not
   wanted: >= 0.1 (rhs)
   found: 0 (lhs)
   expected: >= 0.1 (rhs)
@@ -356,7 +356,7 @@ ok 56 - comparePointers(EQ:left == right)
 not ok 57 - comparePointers(EQ:left < right)
   ---
   type: QCOMPARE_EQ
-  message: Left value is expected to be equal to right value, but is not
+  message: The computed value is expected to be equal to the baseline, but is not
   wanted: == 2 (rhs)
   found: 1 (lhs)
   expected: == 2 (rhs)
@@ -368,7 +368,7 @@ not ok 57 - comparePointers(EQ:left < right)
 not ok 58 - comparePointers(EQ:left > right)
   ---
   type: QCOMPARE_EQ
-  message: Left value is expected to be equal to right value, but is not
+  message: The computed value is expected to be equal to the baseline, but is not
   wanted: == 1 (rhs)
   found: 2 (lhs)
   expected: == 1 (rhs)
@@ -380,7 +380,7 @@ not ok 58 - comparePointers(EQ:left > right)
 not ok 59 - comparePointers(NE:left == right)
   ---
   type: QCOMPARE_NE
-  message: Left value is expected to be different from right value, but is not
+  message: The computed value is expected to be different from the baseline, but is not
   wanted: != 1 (rhs)
   found: 1 (lhs)
   expected: != 1 (rhs)
@@ -394,7 +394,7 @@ ok 61 - comparePointers(NE:left > right)
 not ok 62 - comparePointers(LT:left == right)
   ---
   type: QCOMPARE_LT
-  message: Left value is expected to be less than right value, but is not
+  message: The computed value is expected to be less than the baseline, but is not
   wanted: < 1 (rhs)
   found: 1 (lhs)
   expected: < 1 (rhs)
@@ -407,7 +407,7 @@ ok 63 - comparePointers(LT:left < right)
 not ok 64 - comparePointers(LT:left > right)
   ---
   type: QCOMPARE_LT
-  message: Left value is expected to be less than right value, but is not
+  message: The computed value is expected to be less than the baseline, but is not
   wanted: < 1 (rhs)
   found: 2 (lhs)
   expected: < 1 (rhs)
@@ -421,7 +421,7 @@ ok 66 - comparePointers(LE:left < right)
 not ok 67 - comparePointers(LE:left > right)
   ---
   type: QCOMPARE_LE
-  message: Left value is expected to be less than or equal to right value, but is not
+  message: The computed value is expected to be less than or equal to the baseline, but is not
   wanted: <= 1 (rhs)
   found: 2 (lhs)
   expected: <= 1 (rhs)
@@ -433,7 +433,7 @@ not ok 67 - comparePointers(LE:left > right)
 not ok 68 - comparePointers(GT:left == right)
   ---
   type: QCOMPARE_GT
-  message: Left value is expected to be greater than right value, but is not
+  message: The computed value is expected to be greater than the baseline, but is not
   wanted: > 1 (rhs)
   found: 1 (lhs)
   expected: > 1 (rhs)
@@ -445,7 +445,7 @@ not ok 68 - comparePointers(GT:left == right)
 not ok 69 - comparePointers(GT:left < right)
   ---
   type: QCOMPARE_GT
-  message: Left value is expected to be greater than right value, but is not
+  message: The computed value is expected to be greater than the baseline, but is not
   wanted: > 2 (rhs)
   found: 1 (lhs)
   expected: > 2 (rhs)
@@ -459,7 +459,7 @@ ok 71 - comparePointers(GE:left == right)
 not ok 72 - comparePointers(GE:left < right)
   ---
   type: QCOMPARE_GE
-  message: Left value is expected to be greater than or equal to right value, but is not
+  message: The computed value is expected to be greater than or equal to the baseline, but is not
   wanted: >= 2 (rhs)
   found: 1 (lhs)
   expected: >= 2 (rhs)
@@ -473,7 +473,7 @@ ok 74 - compareToNullptr(EQ:left == right)
 not ok 75 - compareToNullptr(EQ:left < right)
   ---
   type: QCOMPARE_EQ
-  message: Left value is expected to be equal to right value, but is not
+  message: The computed value is expected to be equal to the baseline, but is not
   wanted: == 1 (rhs)
   found: "nullptr" (lhs)
   expected: == 1 (rhs)
@@ -485,7 +485,7 @@ not ok 75 - compareToNullptr(EQ:left < right)
 not ok 76 - compareToNullptr(EQ:left > right)
   ---
   type: QCOMPARE_EQ
-  message: Left value is expected to be equal to right value, but is not
+  message: The computed value is expected to be equal to the baseline, but is not
   wanted: == "nullptr" (rhs)
   found: 1 (lhs)
   expected: == "nullptr" (rhs)
@@ -497,7 +497,7 @@ not ok 76 - compareToNullptr(EQ:left > right)
 not ok 77 - compareToNullptr(NE:left == right)
   ---
   type: QCOMPARE_NE
-  message: Left value is expected to be different from right value, but is not
+  message: The computed value is expected to be different from the baseline, but is not
   wanted: != "nullptr" (rhs)
   found: "nullptr" (lhs)
   expected: != "nullptr" (rhs)
@@ -511,7 +511,7 @@ ok 79 - compareToNullptr(NE:left > right)
 not ok 80 - compareToNullptr(LT:left == right)
   ---
   type: QCOMPARE_LT
-  message: Left value is expected to be less than right value, but is not
+  message: The computed value is expected to be less than the baseline, but is not
   wanted: < "nullptr" (rhs)
   found: "nullptr" (lhs)
   expected: < "nullptr" (rhs)
@@ -524,7 +524,7 @@ ok 81 - compareToNullptr(LT:left < right)
 not ok 82 - compareToNullptr(LT:left > right)
   ---
   type: QCOMPARE_LT
-  message: Left value is expected to be less than right value, but is not
+  message: The computed value is expected to be less than the baseline, but is not
   wanted: < "nullptr" (rhs)
   found: 1 (lhs)
   expected: < "nullptr" (rhs)
@@ -538,7 +538,7 @@ ok 84 - compareToNullptr(LE:left < right)
 not ok 85 - compareToNullptr(LE:left > right)
   ---
   type: QCOMPARE_LE
-  message: Left value is expected to be less than or equal to right value, but is not
+  message: The computed value is expected to be less than or equal to the baseline, but is not
   wanted: <= "nullptr" (rhs)
   found: 1 (lhs)
   expected: <= "nullptr" (rhs)
@@ -550,7 +550,7 @@ not ok 85 - compareToNullptr(LE:left > right)
 not ok 86 - compareToNullptr(GT:left == right)
   ---
   type: QCOMPARE_GT
-  message: Left value is expected to be greater than right value, but is not
+  message: The computed value is expected to be greater than the baseline, but is not
   wanted: > "nullptr" (rhs)
   found: "nullptr" (lhs)
   expected: > "nullptr" (rhs)
@@ -562,7 +562,7 @@ not ok 86 - compareToNullptr(GT:left == right)
 not ok 87 - compareToNullptr(GT:left < right)
   ---
   type: QCOMPARE_GT
-  message: Left value is expected to be greater than right value, but is not
+  message: The computed value is expected to be greater than the baseline, but is not
   wanted: > 1 (rhs)
   found: "nullptr" (lhs)
   expected: > 1 (rhs)
@@ -576,7 +576,7 @@ ok 89 - compareToNullptr(GE:left == right)
 not ok 90 - compareToNullptr(GE:left < right)
   ---
   type: QCOMPARE_GE
-  message: Left value is expected to be greater than or equal to right value, but is not
+  message: The computed value is expected to be greater than or equal to the baseline, but is not
   wanted: >= 1 (rhs)
   found: "nullptr" (lhs)
   expected: >= 1 (rhs)
@@ -590,7 +590,7 @@ ok 92 - compareUnregistereEnum(EQ:left == right)
 not ok 93 - compareUnregistereEnum(EQ:left < right)
   ---
   type: QCOMPARE_EQ
-  message: Left value is expected to be equal to right value, but is not
+  message: The computed value is expected to be equal to the baseline, but is not
   wanted: == 1 (rhs)
   found: 0 (lhs)
   expected: == 1 (rhs)
@@ -602,7 +602,7 @@ not ok 93 - compareUnregistereEnum(EQ:left < right)
 not ok 94 - compareUnregistereEnum(EQ:left > right)
   ---
   type: QCOMPARE_EQ
-  message: Left value is expected to be equal to right value, but is not
+  message: The computed value is expected to be equal to the baseline, but is not
   wanted: == 0 (rhs)
   found: 1 (lhs)
   expected: == 0 (rhs)
@@ -614,7 +614,7 @@ not ok 94 - compareUnregistereEnum(EQ:left > right)
 not ok 95 - compareUnregistereEnum(NE:left == right)
   ---
   type: QCOMPARE_NE
-  message: Left value is expected to be different from right value, but is not
+  message: The computed value is expected to be different from the baseline, but is not
   wanted: != 0 (rhs)
   found: 0 (lhs)
   expected: != 0 (rhs)
@@ -628,7 +628,7 @@ ok 97 - compareUnregistereEnum(NE:left > right)
 not ok 98 - compareUnregistereEnum(LT:left == right)
   ---
   type: QCOMPARE_LT
-  message: Left value is expected to be less than right value, but is not
+  message: The computed value is expected to be less than the baseline, but is not
   wanted: < 0 (rhs)
   found: 0 (lhs)
   expected: < 0 (rhs)
@@ -641,7 +641,7 @@ ok 99 - compareUnregistereEnum(LT:left < right)
 not ok 100 - compareUnregistereEnum(LT:left > right)
   ---
   type: QCOMPARE_LT
-  message: Left value is expected to be less than right value, but is not
+  message: The computed value is expected to be less than the baseline, but is not
   wanted: < 0 (rhs)
   found: 1 (lhs)
   expected: < 0 (rhs)
@@ -655,7 +655,7 @@ ok 102 - compareUnregistereEnum(LE:left < right)
 not ok 103 - compareUnregistereEnum(LE:left > right)
   ---
   type: QCOMPARE_LE
-  message: Left value is expected to be less than or equal to right value, but is not
+  message: The computed value is expected to be less than or equal to the baseline, but is not
   wanted: <= 0 (rhs)
   found: 1 (lhs)
   expected: <= 0 (rhs)
@@ -667,7 +667,7 @@ not ok 103 - compareUnregistereEnum(LE:left > right)
 not ok 104 - compareUnregistereEnum(GT:left == right)
   ---
   type: QCOMPARE_GT
-  message: Left value is expected to be greater than right value, but is not
+  message: The computed value is expected to be greater than the baseline, but is not
   wanted: > 0 (rhs)
   found: 0 (lhs)
   expected: > 0 (rhs)
@@ -679,7 +679,7 @@ not ok 104 - compareUnregistereEnum(GT:left == right)
 not ok 105 - compareUnregistereEnum(GT:left < right)
   ---
   type: QCOMPARE_GT
-  message: Left value is expected to be greater than right value, but is not
+  message: The computed value is expected to be greater than the baseline, but is not
   wanted: > 1 (rhs)
   found: 0 (lhs)
   expected: > 1 (rhs)
@@ -693,7 +693,7 @@ ok 107 - compareUnregistereEnum(GE:left == right)
 not ok 108 - compareUnregistereEnum(GE:left < right)
   ---
   type: QCOMPARE_GE
-  message: Left value is expected to be greater than or equal to right value, but is not
+  message: The computed value is expected to be greater than or equal to the baseline, but is not
   wanted: >= 1 (rhs)
   found: 0 (lhs)
   expected: >= 1 (rhs)
@@ -707,7 +707,7 @@ ok 110 - compareRegistereEnum(EQ:left == right)
 not ok 111 - compareRegistereEnum(EQ:left < right)
   ---
   type: QCOMPARE_EQ
-  message: Left value is expected to be equal to right value, but is not
+  message: The computed value is expected to be equal to the baseline, but is not
   wanted: == Sunday (rhs)
   found: Monday (lhs)
   expected: == Sunday (rhs)
@@ -719,7 +719,7 @@ not ok 111 - compareRegistereEnum(EQ:left < right)
 not ok 112 - compareRegistereEnum(EQ:left > right)
   ---
   type: QCOMPARE_EQ
-  message: Left value is expected to be equal to right value, but is not
+  message: The computed value is expected to be equal to the baseline, but is not
   wanted: == Monday (rhs)
   found: Sunday (lhs)
   expected: == Monday (rhs)
@@ -731,7 +731,7 @@ not ok 112 - compareRegistereEnum(EQ:left > right)
 not ok 113 - compareRegistereEnum(NE:left == right)
   ---
   type: QCOMPARE_NE
-  message: Left value is expected to be different from right value, but is not
+  message: The computed value is expected to be different from the baseline, but is not
   wanted: != Monday (rhs)
   found: Monday (lhs)
   expected: != Monday (rhs)
@@ -745,7 +745,7 @@ ok 115 - compareRegistereEnum(NE:left > right)
 not ok 116 - compareRegistereEnum(LT:left == right)
   ---
   type: QCOMPARE_LT
-  message: Left value is expected to be less than right value, but is not
+  message: The computed value is expected to be less than the baseline, but is not
   wanted: < Monday (rhs)
   found: Monday (lhs)
   expected: < Monday (rhs)
@@ -758,7 +758,7 @@ ok 117 - compareRegistereEnum(LT:left < right)
 not ok 118 - compareRegistereEnum(LT:left > right)
   ---
   type: QCOMPARE_LT
-  message: Left value is expected to be less than right value, but is not
+  message: The computed value is expected to be less than the baseline, but is not
   wanted: < Monday (rhs)
   found: Sunday (lhs)
   expected: < Monday (rhs)
@@ -772,7 +772,7 @@ ok 120 - compareRegistereEnum(LE:left < right)
 not ok 121 - compareRegistereEnum(LE:left > right)
   ---
   type: QCOMPARE_LE
-  message: Left value is expected to be less than or equal to right value, but is not
+  message: The computed value is expected to be less than or equal to the baseline, but is not
   wanted: <= Monday (rhs)
   found: Sunday (lhs)
   expected: <= Monday (rhs)
@@ -784,7 +784,7 @@ not ok 121 - compareRegistereEnum(LE:left > right)
 not ok 122 - compareRegistereEnum(GT:left == right)
   ---
   type: QCOMPARE_GT
-  message: Left value is expected to be greater than right value, but is not
+  message: The computed value is expected to be greater than the baseline, but is not
   wanted: > Monday (rhs)
   found: Monday (lhs)
   expected: > Monday (rhs)
@@ -796,7 +796,7 @@ not ok 122 - compareRegistereEnum(GT:left == right)
 not ok 123 - compareRegistereEnum(GT:left < right)
   ---
   type: QCOMPARE_GT
-  message: Left value is expected to be greater than right value, but is not
+  message: The computed value is expected to be greater than the baseline, but is not
   wanted: > Sunday (rhs)
   found: Monday (lhs)
   expected: > Sunday (rhs)
@@ -810,7 +810,7 @@ ok 125 - compareRegistereEnum(GE:left == right)
 not ok 126 - compareRegistereEnum(GE:left < right)
   ---
   type: QCOMPARE_GE
-  message: Left value is expected to be greater than or equal to right value, but is not
+  message: The computed value is expected to be greater than or equal to the baseline, but is not
   wanted: >= Sunday (rhs)
   found: Monday (lhs)
   expected: >= Sunday (rhs)
@@ -824,7 +824,7 @@ ok 128 - compareCustomTypes(EQ:left == right)
 not ok 129 - compareCustomTypes(EQ:left < right)
   ---
   type: QCOMPARE_EQ
-  message: Left value is expected to be equal to right value, but is not
+  message: The computed value is expected to be equal to the baseline, but is not
   wanted: == MyClass(2) (rhs)
   found: MyClass(1) (lhs)
   expected: == MyClass(2) (rhs)
@@ -836,7 +836,7 @@ not ok 129 - compareCustomTypes(EQ:left < right)
 not ok 130 - compareCustomTypes(EQ:left > right)
   ---
   type: QCOMPARE_EQ
-  message: Left value is expected to be equal to right value, but is not
+  message: The computed value is expected to be equal to the baseline, but is not
   wanted: == MyClass(1) (rhs)
   found: MyClass(2) (lhs)
   expected: == MyClass(1) (rhs)
@@ -848,7 +848,7 @@ not ok 130 - compareCustomTypes(EQ:left > right)
 not ok 131 - compareCustomTypes(NE:left == right)
   ---
   type: QCOMPARE_NE
-  message: Left value is expected to be different from right value, but is not
+  message: The computed value is expected to be different from the baseline, but is not
   wanted: != MyClass(1) (rhs)
   found: MyClass(1) (lhs)
   expected: != MyClass(1) (rhs)
@@ -862,7 +862,7 @@ ok 133 - compareCustomTypes(NE:left > right)
 not ok 134 - compareCustomTypes(LT:left == right)
   ---
   type: QCOMPARE_LT
-  message: Left value is expected to be less than right value, but is not
+  message: The computed value is expected to be less than the baseline, but is not
   wanted: < MyClass(1) (rhs)
   found: MyClass(1) (lhs)
   expected: < MyClass(1) (rhs)
@@ -875,7 +875,7 @@ ok 135 - compareCustomTypes(LT:left < right)
 not ok 136 - compareCustomTypes(LT:left > right)
   ---
   type: QCOMPARE_LT
-  message: Left value is expected to be less than right value, but is not
+  message: The computed value is expected to be less than the baseline, but is not
   wanted: < MyClass(1) (rhs)
   found: MyClass(2) (lhs)
   expected: < MyClass(1) (rhs)
@@ -889,7 +889,7 @@ ok 138 - compareCustomTypes(LE:left < right)
 not ok 139 - compareCustomTypes(LE:left > right)
   ---
   type: QCOMPARE_LE
-  message: Left value is expected to be less than or equal to right value, but is not
+  message: The computed value is expected to be less than or equal to the baseline, but is not
   wanted: <= MyClass(1) (rhs)
   found: MyClass(2) (lhs)
   expected: <= MyClass(1) (rhs)
@@ -901,7 +901,7 @@ not ok 139 - compareCustomTypes(LE:left > right)
 not ok 140 - compareCustomTypes(GT:left == right)
   ---
   type: QCOMPARE_GT
-  message: Left value is expected to be greater than right value, but is not
+  message: The computed value is expected to be greater than the baseline, but is not
   wanted: > MyClass(1) (rhs)
   found: MyClass(1) (lhs)
   expected: > MyClass(1) (rhs)
@@ -913,7 +913,7 @@ not ok 140 - compareCustomTypes(GT:left == right)
 not ok 141 - compareCustomTypes(GT:left < right)
   ---
   type: QCOMPARE_GT
-  message: Left value is expected to be greater than right value, but is not
+  message: The computed value is expected to be greater than the baseline, but is not
   wanted: > MyClass(2) (rhs)
   found: MyClass(1) (lhs)
   expected: > MyClass(2) (rhs)
@@ -927,7 +927,7 @@ ok 143 - compareCustomTypes(GE:left == right)
 not ok 144 - compareCustomTypes(GE:left < right)
   ---
   type: QCOMPARE_GE
-  message: Left value is expected to be greater than or equal to right value, but is not
+  message: The computed value is expected to be greater than or equal to the baseline, but is not
   wanted: >= MyClass(2) (rhs)
   found: MyClass(1) (lhs)
   expected: >= MyClass(2) (rhs)
@@ -940,7 +940,7 @@ ok 145 - compareCustomTypes(GE:left > right)
 not ok 146 - checkComparisonForTemporaryObjects(EQ)
   ---
   type: QCOMPARE_EQ
-  message: Left value is expected to be equal to right value, but is not
+  message: The computed value is expected to be equal to the baseline, but is not
   wanted: == MyClass(1) on memory address with index 1 (getClassForValue(1).getValuePointer())
   found: MyClass(2) on memory address with index 0 (getClassForValue(0).getValuePointer())
   expected: == MyClass(1) on memory address with index 1 (getClassForValue(1).getValuePointer())
@@ -955,7 +955,7 @@ ok 149 - checkComparisonForTemporaryObjects(LE)
 not ok 150 - checkComparisonForTemporaryObjects(GT)
   ---
   type: QCOMPARE_GT
-  message: Left value is expected to be greater than right value, but is not
+  message: The computed value is expected to be greater than the baseline, but is not
   wanted: > MyClass(1) on memory address with index 1 (getClassForValue(1).getValuePointer())
   found: MyClass(2) on memory address with index 0 (getClassForValue(0).getValuePointer())
   expected: > MyClass(1) on memory address with index 1 (getClassForValue(1).getValuePointer())
@@ -967,7 +967,7 @@ not ok 150 - checkComparisonForTemporaryObjects(GT)
 not ok 151 - checkComparisonForTemporaryObjects(GE)
   ---
   type: QCOMPARE_GE
-  message: Left value is expected to be greater than or equal to right value, but is not
+  message: The computed value is expected to be greater than or equal to the baseline, but is not
   wanted: >= MyClass(1) on memory address with index 1 (getClassForValue(1).getValuePointer())
   found: MyClass(2) on memory address with index 0 (getClassForValue(0).getValuePointer())
   expected: >= MyClass(1) on memory address with index 1 (getClassForValue(1).getValuePointer())
@@ -981,7 +981,7 @@ ok 153 - checkComparisonWithTimeout(NE)
 not ok 154 - checkComparisonWithTimeout(LT)
   ---
   type: QCOMPARE_LT
-  message: Left value is expected to be less than right value, but is not
+  message: The computed value is expected to be less than the baseline, but is not
   wanted: < ClassWithDeferredSetter(0) (ClassWithDeferredSetter(0))
   found: ClassWithDeferredSetter(1) (c)
   expected: < ClassWithDeferredSetter(0) (ClassWithDeferredSetter(0))
@@ -993,7 +993,7 @@ not ok 154 - checkComparisonWithTimeout(LT)
 not ok 155 - checkComparisonWithTimeout(LE)
   ---
   type: QCOMPARE_LE
-  message: Left value is expected to be less than or equal to right value, but is not
+  message: The computed value is expected to be less than or equal to the baseline, but is not
   wanted: <= ClassWithDeferredSetter(-1) (ClassWithDeferredSetter(-1))
   found: ClassWithDeferredSetter(1) (c)
   expected: <= ClassWithDeferredSetter(-1) (ClassWithDeferredSetter(-1))
@@ -1005,7 +1005,7 @@ not ok 155 - checkComparisonWithTimeout(LE)
 not ok 156 - checkComparisonWithTimeout(GT)
   ---
   type: QCOMPARE_GT
-  message: Left value is expected to be greater than right value, but is not
+  message: The computed value is expected to be greater than the baseline, but is not
   wanted: > ClassWithDeferredSetter(1) (ClassWithDeferredSetter(1))
   found: ClassWithDeferredSetter(1) (c)
   expected: > ClassWithDeferredSetter(1) (ClassWithDeferredSetter(1))
diff --git a/tests/auto/testlib/selftests/expected_extendedcompare.teamcity b/tests/auto/testlib/selftests/expected_extendedcompare.teamcity
index be0e9ca7..4c765561 100644
--- a/tests/auto/testlib/selftests/expected_extendedcompare.teamcity
+++ b/tests/auto/testlib/selftests/expected_extendedcompare.teamcity
@@ -4,365 +4,365 @@
 ##teamcity[testStarted name='compareInts(EQ:left == right)' flowId='tst_ExtendedCompare']
 ##teamcity[testFinished name='compareInts(EQ:left == right)' flowId='tst_ExtendedCompare']
 ##teamcity[testStarted name='compareInts(EQ:left < right)' flowId='tst_ExtendedCompare']
-##teamcity[testFailed name='compareInts(EQ:left < right)' message='Failure! |[Loc: qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp(0)|]' details='Left value is expected to be equal to right value, but is not|n Left (lhs): 1|n Right (rhs): 2' flowId='tst_ExtendedCompare']
+##teamcity[testFailed name='compareInts(EQ:left < right)' message='Failure! |[Loc: qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp(0)|]' details='The computed value is expected to be equal to the baseline, but is not|n Computed (lhs): 1|n Baseline (rhs): 2' flowId='tst_ExtendedCompare']
 ##teamcity[testFinished name='compareInts(EQ:left < right)' flowId='tst_ExtendedCompare']
 ##teamcity[testStarted name='compareInts(EQ:left > right)' flowId='tst_ExtendedCompare']
-##teamcity[testFailed name='compareInts(EQ:left > right)' message='Failure! |[Loc: qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp(0)|]' details='Left value is expected to be equal to right value, but is not|n Left (lhs): 2|n Right (rhs): 1' flowId='tst_ExtendedCompare']
+##teamcity[testFailed name='compareInts(EQ:left > right)' message='Failure! |[Loc: qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp(0)|]' details='The computed value is expected to be equal to the baseline, but is not|n Computed (lhs): 2|n Baseline (rhs): 1' flowId='tst_ExtendedCompare']
 ##teamcity[testFinished name='compareInts(EQ:left > right)' flowId='tst_ExtendedCompare']
 ##teamcity[testStarted name='compareInts(NE:left == right)' flowId='tst_ExtendedCompare']
-##teamcity[testFailed name='compareInts(NE:left == right)' message='Failure! |[Loc: qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp(0)|]' details='Left value is expected to be different from right value, but is not|n Left (lhs): 1|n Right (rhs): 1' flowId='tst_ExtendedCompare']
+##teamcity[testFailed name='compareInts(NE:left == right)' message='Failure! |[Loc: qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp(0)|]' details='The computed value is expected to be different from the baseline, but is not|n Computed (lhs): 1|n Baseline (rhs): 1' flowId='tst_ExtendedCompare']
 ##teamcity[testFinished name='compareInts(NE:left == right)' flowId='tst_ExtendedCompare']
 ##teamcity[testStarted name='compareInts(NE:left < right)' flowId='tst_ExtendedCompare']
 ##teamcity[testFinished name='compareInts(NE:left < right)' flowId='tst_ExtendedCompare']
 ##teamcity[testStarted name='compareInts(NE:left > right)' flowId='tst_ExtendedCompare']
 ##teamcity[testFinished name='compareInts(NE:left > right)' flowId='tst_ExtendedCompare']
 ##teamcity[testStarted name='compareInts(LT:left == right)' flowId='tst_ExtendedCompare']
-##teamcity[testFailed name='compareInts(LT:left == right)' message='Failure! |[Loc: qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp(0)|]' details='Left value is expected to be less than right value, but is not|n Left (lhs): 1|n Right (rhs): 1' flowId='tst_ExtendedCompare']
+##teamcity[testFailed name='compareInts(LT:left == right)' message='Failure! |[Loc: qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp(0)|]' details='The computed value is expected to be less than the baseline, but is not|n Computed (lhs): 1|n Baseline (rhs): 1' flowId='tst_ExtendedCompare']
 ##teamcity[testFinished name='compareInts(LT:left == right)' flowId='tst_ExtendedCompare']
 ##teamcity[testStarted name='compareInts(LT:left < right)' flowId='tst_ExtendedCompare']
 ##teamcity[testFinished name='compareInts(LT:left < right)' flowId='tst_ExtendedCompare']
 ##teamcity[testStarted name='compareInts(LT:left > right)' flowId='tst_ExtendedCompare']
-##teamcity[testFailed name='compareInts(LT:left > right)' message='Failure! |[Loc: qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp(0)|]' details='Left value is expected to be less than right value, but is not|n Left (lhs): 2|n Right (rhs): 1' flowId='tst_ExtendedCompare']
+##teamcity[testFailed name='compareInts(LT:left > right)' message='Failure! |[Loc: qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp(0)|]' details='The computed value is expected to be less than the baseline, but is not|n Computed (lhs): 2|n Baseline (rhs): 1' flowId='tst_ExtendedCompare']
 ##teamcity[testFinished name='compareInts(LT:left > right)' flowId='tst_ExtendedCompare']
 ##teamcity[testStarted name='compareInts(LE:left == right)' flowId='tst_ExtendedCompare']
 ##teamcity[testFinished name='compareInts(LE:left == right)' flowId='tst_ExtendedCompare']
 ##teamcity[testStarted name='compareInts(LE:left < right)' flowId='tst_ExtendedCompare']
 ##teamcity[testFinished name='compareInts(LE:left < right)' flowId='tst_ExtendedCompare']
 ##teamcity[testStarted name='compareInts(LE:left > right)' flowId='tst_ExtendedCompare']
-##teamcity[testFailed name='compareInts(LE:left > right)' message='Failure! |[Loc: qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp(0)|]' details='Left value is expected to be less than or equal to right value, but is not|n Left (lhs): 2|n Right (rhs): 1' flowId='tst_ExtendedCompare']
+##teamcity[testFailed name='compareInts(LE:left > right)' message='Failure! |[Loc: qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp(0)|]' details='The computed value is expected to be less than or equal to the baseline, but is not|n Computed (lhs): 2|n Baseline (rhs): 1' flowId='tst_ExtendedCompare']
 ##teamcity[testFinished name='compareInts(LE:left > right)' flowId='tst_ExtendedCompare']
 ##teamcity[testStarted name='compareInts(GT:left == right)' flowId='tst_ExtendedCompare']
-##teamcity[testFailed name='compareInts(GT:left == right)' message='Failure! |[Loc: qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp(0)|]' details='Left value is expected to be greater than right value, but is not|n Left (lhs): 1|n Right (rhs): 1' flowId='tst_ExtendedCompare']
+##teamcity[testFailed name='compareInts(GT:left == right)' message='Failure! |[Loc: qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp(0)|]' details='The computed value is expected to be greater than the baseline, but is not|n Computed (lhs): 1|n Baseline (rhs): 1' flowId='tst_ExtendedCompare']
 ##teamcity[testFinished name='compareInts(GT:left == right)' flowId='tst_ExtendedCompare']
 ##teamcity[testStarted name='compareInts(GT:left < right)' flowId='tst_ExtendedCompare']
-##teamcity[testFailed name='compareInts(GT:left < right)' message='Failure! |[Loc: qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp(0)|]' details='Left value is expected to be greater than right value, but is not|n Left (lhs): 1|n Right (rhs): 2' flowId='tst_ExtendedCompare']
+##teamcity[testFailed name='compareInts(GT:left < right)' message='Failure! |[Loc: qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp(0)|]' details='The computed value is expected to be greater than the baseline, but is not|n Computed (lhs): 1|n Baseline (rhs): 2' flowId='tst_ExtendedCompare']
 ##teamcity[testFinished name='compareInts(GT:left < right)' flowId='tst_ExtendedCompare']
 ##teamcity[testStarted name='compareInts(GT:left > right)' flowId='tst_ExtendedCompare']
 ##teamcity[testFinished name='compareInts(GT:left > right)' flowId='tst_ExtendedCompare']
 ##teamcity[testStarted name='compareInts(GE:left == right)' flowId='tst_ExtendedCompare']
 ##teamcity[testFinished name='compareInts(GE:left == right)' flowId='tst_ExtendedCompare']
 ##teamcity[testStarted name='compareInts(GE:left < right)' flowId='tst_ExtendedCompare']
-##teamcity[testFailed name='compareInts(GE:left < right)' message='Failure! |[Loc: qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp(0)|]' details='Left value is expected to be greater than or equal to right value, but is not|n Left (lhs): 1|n Right (rhs): 2' flowId='tst_ExtendedCompare']
+##teamcity[testFailed name='compareInts(GE:left < right)' message='Failure! |[Loc: qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp(0)|]' details='The computed value is expected to be greater than or equal to the baseline, but is not|n Computed (lhs): 1|n Baseline (rhs): 2' flowId='tst_ExtendedCompare']
 ##teamcity[testFinished name='compareInts(GE:left < right)' flowId='tst_ExtendedCompare']
 ##teamcity[testStarted name='compareInts(GE:left > right)' flowId='tst_ExtendedCompare']
 ##teamcity[testFinished name='compareInts(GE:left > right)' flowId='tst_ExtendedCompare']
 ##teamcity[testStarted name='compareFloats(EQ:left == right)' flowId='tst_ExtendedCompare']
 ##teamcity[testFinished name='compareFloats(EQ:left == right)' flowId='tst_ExtendedCompare']
 ##teamcity[testStarted name='compareFloats(EQ:left < right)' flowId='tst_ExtendedCompare']
-##teamcity[testFailed name='compareFloats(EQ:left < right)' message='Failure! |[Loc: qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp(0)|]' details='Left value is expected to be equal to right value, but is not|n Left (lhs): 1|n Right (rhs): 1.1' flowId='tst_ExtendedCompare']
+##teamcity[testFailed name='compareFloats(EQ:left < right)' message='Failure! |[Loc: qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp(0)|]' details='The computed value is expected to be equal to the baseline, but is not|n Computed (lhs): 1|n Baseline (rhs): 1.1' flowId='tst_ExtendedCompare']
 ##teamcity[testFinished name='compareFloats(EQ:left < right)' flowId='tst_ExtendedCompare']
 ##teamcity[testStarted name='compareFloats(EQ:left > right)' flowId='tst_ExtendedCompare']
-##teamcity[testFailed name='compareFloats(EQ:left > right)' message='Failure! |[Loc: qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp(0)|]' details='Left value is expected to be equal to right value, but is not|n Left (lhs): 1.1|n Right (rhs): 1' flowId='tst_ExtendedCompare']
+##teamcity[testFailed name='compareFloats(EQ:left > right)' message='Failure! |[Loc: qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp(0)|]' details='The computed value is expected to be equal to the baseline, but is not|n Computed (lhs): 1.1|n Baseline (rhs): 1' flowId='tst_ExtendedCompare']
 ##teamcity[testFinished name='compareFloats(EQ:left > right)' flowId='tst_ExtendedCompare']
 ##teamcity[testStarted name='compareFloats(NE:left == right)' flowId='tst_ExtendedCompare']
-##teamcity[testFailed name='compareFloats(NE:left == right)' message='Failure! |[Loc: qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp(0)|]' details='Left value is expected to be different from right value, but is not|n Left (lhs): 1|n Right (rhs): 1' flowId='tst_ExtendedCompare']
+##teamcity[testFailed name='compareFloats(NE:left == right)' message='Failure! |[Loc: qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp(0)|]' details='The computed value is expected to be different from the baseline, but is not|n Computed (lhs): 1|n Baseline (rhs): 1' flowId='tst_ExtendedCompare']
 ##teamcity[testFinished name='compareFloats(NE:left == right)' flowId='tst_ExtendedCompare']
 ##teamcity[testStarted name='compareFloats(NE:left < right)' flowId='tst_ExtendedCompare']
 ##teamcity[testFinished name='compareFloats(NE:left < right)' flowId='tst_ExtendedCompare']
 ##teamcity[testStarted name='compareFloats(NE:left > right)' flowId='tst_ExtendedCompare']
 ##teamcity[testFinished name='compareFloats(NE:left > right)' flowId='tst_ExtendedCompare']
 ##teamcity[testStarted name='compareFloats(LT:left == right)' flowId='tst_ExtendedCompare']
-##teamcity[testFailed name='compareFloats(LT:left == right)' message='Failure! |[Loc: qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp(0)|]' details='Left value is expected to be less than right value, but is not|n Left (lhs): 1|n Right (rhs): 1' flowId='tst_ExtendedCompare']
+##teamcity[testFailed name='compareFloats(LT:left == right)' message='Failure! |[Loc: qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp(0)|]' details='The computed value is expected to be less than the baseline, but is not|n Computed (lhs): 1|n Baseline (rhs): 1' flowId='tst_ExtendedCompare']
 ##teamcity[testFinished name='compareFloats(LT:left == right)' flowId='tst_ExtendedCompare']
 ##teamcity[testStarted name='compareFloats(LT:left < right)' flowId='tst_ExtendedCompare']
 ##teamcity[testFinished name='compareFloats(LT:left < right)' flowId='tst_ExtendedCompare']
 ##teamcity[testStarted name='compareFloats(LT:left > right)' flowId='tst_ExtendedCompare']
-##teamcity[testFailed name='compareFloats(LT:left > right)' message='Failure! |[Loc: qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp(0)|]' details='Left value is expected to be less than right value, but is not|n Left (lhs): 1.1|n Right (rhs): 1' flowId='tst_ExtendedCompare']
+##teamcity[testFailed name='compareFloats(LT:left > right)' message='Failure! |[Loc: qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp(0)|]' details='The computed value is expected to be less than the baseline, but is not|n Computed (lhs): 1.1|n Baseline (rhs): 1' flowId='tst_ExtendedCompare']
 ##teamcity[testFinished name='compareFloats(LT:left > right)' flowId='tst_ExtendedCompare']
 ##teamcity[testStarted name='compareFloats(LE:left == right)' flowId='tst_ExtendedCompare']
 ##teamcity[testFinished name='compareFloats(LE:left == right)' flowId='tst_ExtendedCompare']
 ##teamcity[testStarted name='compareFloats(LE:left < right)' flowId='tst_ExtendedCompare']
 ##teamcity[testFinished name='compareFloats(LE:left < right)' flowId='tst_ExtendedCompare']
 ##teamcity[testStarted name='compareFloats(LE:left > right)' flowId='tst_ExtendedCompare']
-##teamcity[testFailed name='compareFloats(LE:left > right)' message='Failure! |[Loc: qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp(0)|]' details='Left value is expected to be less than or equal to right value, but is not|n Left (lhs): 1.1|n Right (rhs): 1' flowId='tst_ExtendedCompare']
+##teamcity[testFailed name='compareFloats(LE:left > right)' message='Failure! |[Loc: qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp(0)|]' details='The computed value is expected to be less than or equal to the baseline, but is not|n Computed (lhs): 1.1|n Baseline (rhs): 1' flowId='tst_ExtendedCompare']
 ##teamcity[testFinished name='compareFloats(LE:left > right)' flowId='tst_ExtendedCompare']
 ##teamcity[testStarted name='compareFloats(GT:left == right)' flowId='tst_ExtendedCompare']
-##teamcity[testFailed name='compareFloats(GT:left == right)' message='Failure! |[Loc: qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp(0)|]' details='Left value is expected to be greater than right value, but is not|n Left (lhs): 1|n Right (rhs): 1' flowId='tst_ExtendedCompare']
+##teamcity[testFailed name='compareFloats(GT:left == right)' message='Failure! |[Loc: qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp(0)|]' details='The computed value is expected to be greater than the baseline, but is not|n Computed (lhs): 1|n Baseline (rhs): 1' flowId='tst_ExtendedCompare']
 ##teamcity[testFinished name='compareFloats(GT:left == right)' flowId='tst_ExtendedCompare']
 ##teamcity[testStarted name='compareFloats(GT:left < right)' flowId='tst_ExtendedCompare']
-##teamcity[testFailed name='compareFloats(GT:left < right)' message='Failure! |[Loc: qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp(0)|]' details='Left value is expected to be greater than right value, but is not|n Left (lhs): 1|n Right (rhs): 1.1' flowId='tst_ExtendedCompare']
+##teamcity[testFailed name='compareFloats(GT:left < right)' message='Failure! |[Loc: qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp(0)|]' details='The computed value is expected to be greater than the baseline, but is not|n Computed (lhs): 1|n Baseline (rhs): 1.1' flowId='tst_ExtendedCompare']
 ##teamcity[testFinished name='compareFloats(GT:left < right)' flowId='tst_ExtendedCompare']
 ##teamcity[testStarted name='compareFloats(GT:left > right)' flowId='tst_ExtendedCompare']
 ##teamcity[testFinished name='compareFloats(GT:left > right)' flowId='tst_ExtendedCompare']
 ##teamcity[testStarted name='compareFloats(GE:left == right)' flowId='tst_ExtendedCompare']
 ##teamcity[testFinished name='compareFloats(GE:left == right)' flowId='tst_ExtendedCompare']
 ##teamcity[testStarted name='compareFloats(GE:left < right)' flowId='tst_ExtendedCompare']
-##teamcity[testFailed name='compareFloats(GE:left < right)' message='Failure! |[Loc: qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp(0)|]' details='Left value is expected to be greater than or equal to right value, but is not|n Left (lhs): 1|n Right (rhs): 1.1' flowId='tst_ExtendedCompare']
+##teamcity[testFailed name='compareFloats(GE:left < right)' message='Failure! |[Loc: qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp(0)|]' details='The computed value is expected to be greater than or equal to the baseline, but is not|n Computed (lhs): 1|n Baseline (rhs): 1.1' flowId='tst_ExtendedCompare']
 ##teamcity[testFinished name='compareFloats(GE:left < right)' flowId='tst_ExtendedCompare']
 ##teamcity[testStarted name='compareFloats(GE:left > right)' flowId='tst_ExtendedCompare']
 ##teamcity[testFinished name='compareFloats(GE:left > right)' flowId='tst_ExtendedCompare']
 ##teamcity[testStarted name='compareDoubles(EQ:left == right)' flowId='tst_ExtendedCompare']
 ##teamcity[testFinished name='compareDoubles(EQ:left == right)' flowId='tst_ExtendedCompare']
 ##teamcity[testStarted name='compareDoubles(EQ:left < right)' flowId='tst_ExtendedCompare']
-##teamcity[testFailed name='compareDoubles(EQ:left < right)' message='Failure! |[Loc: qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp(0)|]' details='Left value is expected to be equal to right value, but is not|n Left (lhs): 0|n Right (rhs): 0.1' flowId='tst_ExtendedCompare']
+##teamcity[testFailed name='compareDoubles(EQ:left < right)' message='Failure! |[Loc: qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp(0)|]' details='The computed value is expected to be equal to the baseline, but is not|n Computed (lhs): 0|n Baseline (rhs): 0.1' flowId='tst_ExtendedCompare']
 ##teamcity[testFinished name='compareDoubles(EQ:left < right)' flowId='tst_ExtendedCompare']
 ##teamcity[testStarted name='compareDoubles(EQ:left > right)' flowId='tst_ExtendedCompare']
-##teamcity[testFailed name='compareDoubles(EQ:left > right)' message='Failure! |[Loc: qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp(0)|]' details='Left value is expected to be equal to right value, but is not|n Left (lhs): 0.1|n Right (rhs): 0' flowId='tst_ExtendedCompare']
+##teamcity[testFailed name='compareDoubles(EQ:left > right)' message='Failure! |[Loc: qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp(0)|]' details='The computed value is expected to be equal to the baseline, but is not|n Computed (lhs): 0.1|n Baseline (rhs): 0' flowId='tst_ExtendedCompare']
 ##teamcity[testFinished name='compareDoubles(EQ:left > right)' flowId='tst_ExtendedCompare']
 ##teamcity[testStarted name='compareDoubles(NE:left == right)' flowId='tst_ExtendedCompare']
-##teamcity[testFailed name='compareDoubles(NE:left == right)' message='Failure! |[Loc: qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp(0)|]' details='Left value is expected to be different from right value, but is not|n Left (lhs): 0|n Right (rhs): 0' flowId='tst_ExtendedCompare']
+##teamcity[testFailed name='compareDoubles(NE:left == right)' message='Failure! |[Loc: qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp(0)|]' details='The computed value is expected to be different from the baseline, but is not|n Computed (lhs): 0|n Baseline (rhs): 0' flowId='tst_ExtendedCompare']
 ##teamcity[testFinished name='compareDoubles(NE:left == right)' flowId='tst_ExtendedCompare']
 ##teamcity[testStarted name='compareDoubles(NE:left < right)' flowId='tst_ExtendedCompare']
 ##teamcity[testFinished name='compareDoubles(NE:left < right)' flowId='tst_ExtendedCompare']
 ##teamcity[testStarted name='compareDoubles(NE:left > right)' flowId='tst_ExtendedCompare']
 ##teamcity[testFinished name='compareDoubles(NE:left > right)' flowId='tst_ExtendedCompare']
 ##teamcity[testStarted name='compareDoubles(LT:left == right)' flowId='tst_ExtendedCompare']
-##teamcity[testFailed name='compareDoubles(LT:left == right)' message='Failure! |[Loc: qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp(0)|]' details='Left value is expected to be less than right value, but is not|n Left (lhs): 0|n Right (rhs): 0' flowId='tst_ExtendedCompare']
+##teamcity[testFailed name='compareDoubles(LT:left == right)' message='Failure! |[Loc: qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp(0)|]' details='The computed value is expected to be less than the baseline, but is not|n Computed (lhs): 0|n Baseline (rhs): 0' flowId='tst_ExtendedCompare']
 ##teamcity[testFinished name='compareDoubles(LT:left == right)' flowId='tst_ExtendedCompare']
 ##teamcity[testStarted name='compareDoubles(LT:left < right)' flowId='tst_ExtendedCompare']
 ##teamcity[testFinished name='compareDoubles(LT:left < right)' flowId='tst_ExtendedCompare']
 ##teamcity[testStarted name='compareDoubles(LT:left > right)' flowId='tst_ExtendedCompare']
-##teamcity[testFailed name='compareDoubles(LT:left > right)' message='Failure! |[Loc: qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp(0)|]' details='Left value is expected to be less than right value, but is not|n Left (lhs): 0.1|n Right (rhs): 0' flowId='tst_ExtendedCompare']
+##teamcity[testFailed name='compareDoubles(LT:left > right)' message='Failure! |[Loc: qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp(0)|]' details='The computed value is expected to be less than the baseline, but is not|n Computed (lhs): 0.1|n Baseline (rhs): 0' flowId='tst_ExtendedCompare']
 ##teamcity[testFinished name='compareDoubles(LT:left > right)' flowId='tst_ExtendedCompare']
 ##teamcity[testStarted name='compareDoubles(LE:left == right)' flowId='tst_ExtendedCompare']
 ##teamcity[testFinished name='compareDoubles(LE:left == right)' flowId='tst_ExtendedCompare']
 ##teamcity[testStarted name='compareDoubles(LE:left < right)' flowId='tst_ExtendedCompare']
 ##teamcity[testFinished name='compareDoubles(LE:left < right)' flowId='tst_ExtendedCompare']
 ##teamcity[testStarted name='compareDoubles(LE:left > right)' flowId='tst_ExtendedCompare']
-##teamcity[testFailed name='compareDoubles(LE:left > right)' message='Failure! |[Loc: qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp(0)|]' details='Left value is expected to be less than or equal to right value, but is not|n Left (lhs): 0.1|n Right (rhs): 0' flowId='tst_ExtendedCompare']
+##teamcity[testFailed name='compareDoubles(LE:left > right)' message='Failure! |[Loc: qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp(0)|]' details='The computed value is expected to be less than or equal to the baseline, but is not|n Computed (lhs): 0.1|n Baseline (rhs): 0' flowId='tst_ExtendedCompare']
 ##teamcity[testFinished name='compareDoubles(LE:left > right)' flowId='tst_ExtendedCompare']
 ##teamcity[testStarted name='compareDoubles(GT:left == right)' flowId='tst_ExtendedCompare']
-##teamcity[testFailed name='compareDoubles(GT:left == right)' message='Failure! |[Loc: qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp(0)|]' details='Left value is expected to be greater than right value, but is not|n Left (lhs): 0|n Right (rhs): 0' flowId='tst_ExtendedCompare']
+##teamcity[testFailed name='compareDoubles(GT:left == right)' message='Failure! |[Loc: qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp(0)|]' details='The computed value is expected to be greater than the baseline, but is not|n Computed (lhs): 0|n Baseline (rhs): 0' flowId='tst_ExtendedCompare']
 ##teamcity[testFinished name='compareDoubles(GT:left == right)' flowId='tst_ExtendedCompare']
 ##teamcity[testStarted name='compareDoubles(GT:left < right)' flowId='tst_ExtendedCompare']
-##teamcity[testFailed name='compareDoubles(GT:left < right)' message='Failure! |[Loc: qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp(0)|]' details='Left value is expected to be greater than right value, but is not|n Left (lhs): 0|n Right (rhs): 0.1' flowId='tst_ExtendedCompare']
+##teamcity[testFailed name='compareDoubles(GT:left < right)' message='Failure! |[Loc: qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp(0)|]' details='The computed value is expected to be greater than the baseline, but is not|n Computed (lhs): 0|n Baseline (rhs): 0.1' flowId='tst_ExtendedCompare']
 ##teamcity[testFinished name='compareDoubles(GT:left < right)' flowId='tst_ExtendedCompare']
 ##teamcity[testStarted name='compareDoubles(GT:left > right)' flowId='tst_ExtendedCompare']
 ##teamcity[testFinished name='compareDoubles(GT:left > right)' flowId='tst_ExtendedCompare']
 ##teamcity[testStarted name='compareDoubles(GE:left == right)' flowId='tst_ExtendedCompare']
 ##teamcity[testFinished name='compareDoubles(GE:left == right)' flowId='tst_ExtendedCompare']
 ##teamcity[testStarted name='compareDoubles(GE:left < right)' flowId='tst_ExtendedCompare']
-##teamcity[testFailed name='compareDoubles(GE:left < right)' message='Failure! |[Loc: qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp(0)|]' details='Left value is expected to be greater than or equal to right value, but is not|n Left (lhs): 0|n Right (rhs): 0.1' flowId='tst_ExtendedCompare']
+##teamcity[testFailed name='compareDoubles(GE:left < right)' message='Failure! |[Loc: qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp(0)|]' details='The computed value is expected to be greater than or equal to the baseline, but is not|n Computed (lhs): 0|n Baseline (rhs): 0.1' flowId='tst_ExtendedCompare']
 ##teamcity[testFinished name='compareDoubles(GE:left < right)' flowId='tst_ExtendedCompare']
 ##teamcity[testStarted name='compareDoubles(GE:left > right)' flowId='tst_ExtendedCompare']
 ##teamcity[testFinished name='compareDoubles(GE:left > right)' flowId='tst_ExtendedCompare']
 ##teamcity[testStarted name='comparePointers(EQ:left == right)' flowId='tst_ExtendedCompare']
 ##teamcity[testFinished name='comparePointers(EQ:left == right)' flowId='tst_ExtendedCompare']
 ##teamcity[testStarted name='comparePointers(EQ:left < right)' flowId='tst_ExtendedCompare']
-##teamcity[testFailed name='comparePointers(EQ:left < right)' message='Failure! |[Loc: qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp(0)|]' details='Left value is expected to be equal to right value, but is not|n Left (lhs): 1|n Right (rhs): 2' flowId='tst_ExtendedCompare']
+##teamcity[testFailed name='comparePointers(EQ:left < right)' message='Failure! |[Loc: qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp(0)|]' details='The computed value is expected to be equal to the baseline, but is not|n Computed (lhs): 1|n Baseline (rhs): 2' flowId='tst_ExtendedCompare']
 ##teamcity[testFinished name='comparePointers(EQ:left < right)' flowId='tst_ExtendedCompare']
 ##teamcity[testStarted name='comparePointers(EQ:left > right)' flowId='tst_ExtendedCompare']
-##teamcity[testFailed name='comparePointers(EQ:left > right)' message='Failure! |[Loc: qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp(0)|]' details='Left value is expected to be equal to right value, but is not|n Left (lhs): 2|n Right (rhs): 1' flowId='tst_ExtendedCompare']
+##teamcity[testFailed name='comparePointers(EQ:left > right)' message='Failure! |[Loc: qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp(0)|]' details='The computed value is expected to be equal to the baseline, but is not|n Computed (lhs): 2|n Baseline (rhs): 1' flowId='tst_ExtendedCompare']
 ##teamcity[testFinished name='comparePointers(EQ:left > right)' flowId='tst_ExtendedCompare']
 ##teamcity[testStarted name='comparePointers(NE:left == right)' flowId='tst_ExtendedCompare']
-##teamcity[testFailed name='comparePointers(NE:left == right)' message='Failure! |[Loc: qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp(0)|]' details='Left value is expected to be different from right value, but is not|n Left (lhs): 1|n Right (rhs): 1' flowId='tst_ExtendedCompare']
+##teamcity[testFailed name='comparePointers(NE:left == right)' message='Failure! |[Loc: qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp(0)|]' details='The computed value is expected to be different from the baseline, but is not|n Computed (lhs): 1|n Baseline (rhs): 1' flowId='tst_ExtendedCompare']
 ##teamcity[testFinished name='comparePointers(NE:left == right)' flowId='tst_ExtendedCompare']
 ##teamcity[testStarted name='comparePointers(NE:left < right)' flowId='tst_ExtendedCompare']
 ##teamcity[testFinished name='comparePointers(NE:left < right)' flowId='tst_ExtendedCompare']
 ##teamcity[testStarted name='comparePointers(NE:left > right)' flowId='tst_ExtendedCompare']
 ##teamcity[testFinished name='comparePointers(NE:left > right)' flowId='tst_ExtendedCompare']
 ##teamcity[testStarted name='comparePointers(LT:left == right)' flowId='tst_ExtendedCompare']
-##teamcity[testFailed name='comparePointers(LT:left == right)' message='Failure! |[Loc: qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp(0)|]' details='Left value is expected to be less than right value, but is not|n Left (lhs): 1|n Right (rhs): 1' flowId='tst_ExtendedCompare']
+##teamcity[testFailed name='comparePointers(LT:left == right)' message='Failure! |[Loc: qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp(0)|]' details='The computed value is expected to be less than the baseline, but is not|n Computed (lhs): 1|n Baseline (rhs): 1' flowId='tst_ExtendedCompare']
 ##teamcity[testFinished name='comparePointers(LT:left == right)' flowId='tst_ExtendedCompare']
 ##teamcity[testStarted name='comparePointers(LT:left < right)' flowId='tst_ExtendedCompare']
 ##teamcity[testFinished name='comparePointers(LT:left < right)' flowId='tst_ExtendedCompare']
 ##teamcity[testStarted name='comparePointers(LT:left > right)' flowId='tst_ExtendedCompare']
-##teamcity[testFailed name='comparePointers(LT:left > right)' message='Failure! |[Loc: qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp(0)|]' details='Left value is expected to be less than right value, but is not|n Left (lhs): 2|n Right (rhs): 1' flowId='tst_ExtendedCompare']
+##teamcity[testFailed name='comparePointers(LT:left > right)' message='Failure! |[Loc: qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp(0)|]' details='The computed value is expected to be less than the baseline, but is not|n Computed (lhs): 2|n Baseline (rhs): 1' flowId='tst_ExtendedCompare']
 ##teamcity[testFinished name='comparePointers(LT:left > right)' flowId='tst_ExtendedCompare']
 ##teamcity[testStarted name='comparePointers(LE:left == right)' flowId='tst_ExtendedCompare']
 ##teamcity[testFinished name='comparePointers(LE:left == right)' flowId='tst_ExtendedCompare']
 ##teamcity[testStarted name='comparePointers(LE:left < right)' flowId='tst_ExtendedCompare']
 ##teamcity[testFinished name='comparePointers(LE:left < right)' flowId='tst_ExtendedCompare']
 ##teamcity[testStarted name='comparePointers(LE:left > right)' flowId='tst_ExtendedCompare']
-##teamcity[testFailed name='comparePointers(LE:left > right)' message='Failure! |[Loc: qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp(0)|]' details='Left value is expected to be less than or equal to right value, but is not|n Left (lhs): 2|n Right (rhs): 1' flowId='tst_ExtendedCompare']
+##teamcity[testFailed name='comparePointers(LE:left > right)' message='Failure! |[Loc: qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp(0)|]' details='The computed value is expected to be less than or equal to the baseline, but is not|n Computed (lhs): 2|n Baseline (rhs): 1' flowId='tst_ExtendedCompare']
 ##teamcity[testFinished name='comparePointers(LE:left > right)' flowId='tst_ExtendedCompare']
 ##teamcity[testStarted name='comparePointers(GT:left == right)' flowId='tst_ExtendedCompare']
-##teamcity[testFailed name='comparePointers(GT:left == right)' message='Failure! |[Loc: qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp(0)|]' details='Left value is expected to be greater than right value, but is not|n Left (lhs): 1|n Right (rhs): 1' flowId='tst_ExtendedCompare']
+##teamcity[testFailed name='comparePointers(GT:left == right)' message='Failure! |[Loc: qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp(0)|]' details='The computed value is expected to be greater than the baseline, but is not|n Computed (lhs): 1|n Baseline (rhs): 1' flowId='tst_ExtendedCompare']
 ##teamcity[testFinished name='comparePointers(GT:left == right)' flowId='tst_ExtendedCompare']
 ##teamcity[testStarted name='comparePointers(GT:left < right)' flowId='tst_ExtendedCompare']
-##teamcity[testFailed name='comparePointers(GT:left < right)' message='Failure! |[Loc: qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp(0)|]' details='Left value is expected to be greater than right value, but is not|n Left (lhs): 1|n Right (rhs): 2' flowId='tst_ExtendedCompare']
+##teamcity[testFailed name='comparePointers(GT:left < right)' message='Failure! |[Loc: qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp(0)|]' details='The computed value is expected to be greater than the baseline, but is not|n Computed (lhs): 1|n Baseline (rhs): 2' flowId='tst_ExtendedCompare']
 ##teamcity[testFinished name='comparePointers(GT:left < right)' flowId='tst_ExtendedCompare']
 ##teamcity[testStarted name='comparePointers(GT:left > right)' flowId='tst_ExtendedCompare']
 ##teamcity[testFinished name='comparePointers(GT:left > right)' flowId='tst_ExtendedCompare']
 ##teamcity[testStarted name='comparePointers(GE:left == right)' flowId='tst_ExtendedCompare']
 ##teamcity[testFinished name='comparePointers(GE:left == right)' flowId='tst_ExtendedCompare']
 ##teamcity[testStarted name='comparePointers(GE:left < right)' flowId='tst_ExtendedCompare']
-##teamcity[testFailed name='comparePointers(GE:left < right)' message='Failure! |[Loc: qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp(0)|]' details='Left value is expected to be greater than or equal to right value, but is not|n Left (lhs): 1|n Right (rhs): 2' flowId='tst_ExtendedCompare']
+##teamcity[testFailed name='comparePointers(GE:left < right)' message='Failure! |[Loc: qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp(0)|]' details='The computed value is expected to be greater than or equal to the baseline, but is not|n Computed (lhs): 1|n Baseline (rhs): 2' flowId='tst_ExtendedCompare']
 ##teamcity[testFinished name='comparePointers(GE:left < right)' flowId='tst_ExtendedCompare']
 ##teamcity[testStarted name='comparePointers(GE:left > right)' flowId='tst_ExtendedCompare']
 ##teamcity[testFinished name='comparePointers(GE:left > right)' flowId='tst_ExtendedCompare']
 ##teamcity[testStarted name='compareToNullptr(EQ:left == right)' flowId='tst_ExtendedCompare']
 ##teamcity[testFinished name='compareToNullptr(EQ:left == right)' flowId='tst_ExtendedCompare']
 ##teamcity[testStarted name='compareToNullptr(EQ:left < right)' flowId='tst_ExtendedCompare']
-##teamcity[testFailed name='compareToNullptr(EQ:left < right)' message='Failure! |[Loc: qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp(0)|]' details='Left value is expected to be equal to right value, but is not|n Left (lhs): "nullptr"|n Right (rhs): 1' flowId='tst_ExtendedCompare']
+##teamcity[testFailed name='compareToNullptr(EQ:left < right)' message='Failure! |[Loc: qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp(0)|]' details='The computed value is expected to be equal to the baseline, but is not|n Computed (lhs): "nullptr"|n Baseline (rhs): 1' flowId='tst_ExtendedCompare']
 ##teamcity[testFinished name='compareToNullptr(EQ:left < right)' flowId='tst_ExtendedCompare']
 ##teamcity[testStarted name='compareToNullptr(EQ:left > right)' flowId='tst_ExtendedCompare']
-##teamcity[testFailed name='compareToNullptr(EQ:left > right)' message='Failure! |[Loc: qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp(0)|]' details='Left value is expected to be equal to right value, but is not|n Left (lhs): 1|n Right (rhs): "nullptr"' flowId='tst_ExtendedCompare']
+##teamcity[testFailed name='compareToNullptr(EQ:left > right)' message='Failure! |[Loc: qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp(0)|]' details='The computed value is expected to be equal to the baseline, but is not|n Computed (lhs): 1|n Baseline (rhs): "nullptr"' flowId='tst_ExtendedCompare']
 ##teamcity[testFinished name='compareToNullptr(EQ:left > right)' flowId='tst_ExtendedCompare']
 ##teamcity[testStarted name='compareToNullptr(NE:left == right)' flowId='tst_ExtendedCompare']
-##teamcity[testFailed name='compareToNullptr(NE:left == right)' message='Failure! |[Loc: qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp(0)|]' details='Left value is expected to be different from right value, but is not|n Left (lhs): "nullptr"|n Right (rhs): "nullptr"' flowId='tst_ExtendedCompare']
+##teamcity[testFailed name='compareToNullptr(NE:left == right)' message='Failure! |[Loc: qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp(0)|]' details='The computed value is expected to be different from the baseline, but is not|n Computed (lhs): "nullptr"|n Baseline (rhs): "nullptr"' flowId='tst_ExtendedCompare']
 ##teamcity[testFinished name='compareToNullptr(NE:left == right)' flowId='tst_ExtendedCompare']
 ##teamcity[testStarted name='compareToNullptr(NE:left < right)' flowId='tst_ExtendedCompare']
 ##teamcity[testFinished name='compareToNullptr(NE:left < right)' flowId='tst_ExtendedCompare']
 ##teamcity[testStarted name='compareToNullptr(NE:left > right)' flowId='tst_ExtendedCompare']
 ##teamcity[testFinished name='compareToNullptr(NE:left > right)' flowId='tst_ExtendedCompare']
 ##teamcity[testStarted name='compareToNullptr(LT:left == right)' flowId='tst_ExtendedCompare']
-##teamcity[testFailed name='compareToNullptr(LT:left == right)' message='Failure! |[Loc: qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp(0)|]' details='Left value is expected to be less than right value, but is not|n Left (lhs): "nullptr"|n Right (rhs): "nullptr"' flowId='tst_ExtendedCompare']
+##teamcity[testFailed name='compareToNullptr(LT:left == right)' message='Failure! |[Loc: qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp(0)|]' details='The computed value is expected to be less than the baseline, but is not|n Computed (lhs): "nullptr"|n Baseline (rhs): "nullptr"' flowId='tst_ExtendedCompare']
 ##teamcity[testFinished name='compareToNullptr(LT:left == right)' flowId='tst_ExtendedCompare']
 ##teamcity[testStarted name='compareToNullptr(LT:left < right)' flowId='tst_ExtendedCompare']
 ##teamcity[testFinished name='compareToNullptr(LT:left < right)' flowId='tst_ExtendedCompare']
 ##teamcity[testStarted name='compareToNullptr(LT:left > right)' flowId='tst_ExtendedCompare']
-##teamcity[testFailed name='compareToNullptr(LT:left > right)' message='Failure! |[Loc: qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp(0)|]' details='Left value is expected to be less than right value, but is not|n Left (lhs): 1|n Right (rhs): "nullptr"' flowId='tst_ExtendedCompare']
+##teamcity[testFailed name='compareToNullptr(LT:left > right)' message='Failure! |[Loc: qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp(0)|]' details='The computed value is expected to be less than the baseline, but is not|n Computed (lhs): 1|n Baseline (rhs): "nullptr"' flowId='tst_ExtendedCompare']
 ##teamcity[testFinished name='compareToNullptr(LT:left > right)' flowId='tst_ExtendedCompare']
 ##teamcity[testStarted name='compareToNullptr(LE:left == right)' flowId='tst_ExtendedCompare']
 ##teamcity[testFinished name='compareToNullptr(LE:left == right)' flowId='tst_ExtendedCompare']
 ##teamcity[testStarted name='compareToNullptr(LE:left < right)' flowId='tst_ExtendedCompare']
 ##teamcity[testFinished name='compareToNullptr(LE:left < right)' flowId='tst_ExtendedCompare']
 ##teamcity[testStarted name='compareToNullptr(LE:left > right)' flowId='tst_ExtendedCompare']
-##teamcity[testFailed name='compareToNullptr(LE:left > right)' message='Failure! |[Loc: qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp(0)|]' details='Left value is expected to be less than or equal to right value, but is not|n Left (lhs): 1|n Right (rhs): "nullptr"' flowId='tst_ExtendedCompare']
+##teamcity[testFailed name='compareToNullptr(LE:left > right)' message='Failure! |[Loc: qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp(0)|]' details='The computed value is expected to be less than or equal to the baseline, but is not|n Computed (lhs): 1|n Baseline (rhs): "nullptr"' flowId='tst_ExtendedCompare']
 ##teamcity[testFinished name='compareToNullptr(LE:left > right)' flowId='tst_ExtendedCompare']
 ##teamcity[testStarted name='compareToNullptr(GT:left == right)' flowId='tst_ExtendedCompare']
-##teamcity[testFailed name='compareToNullptr(GT:left == right)' message='Failure! |[Loc: qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp(0)|]' details='Left value is expected to be greater than right value, but is not|n Left (lhs): "nullptr"|n Right (rhs): "nullptr"' flowId='tst_ExtendedCompare']
+##teamcity[testFailed name='compareToNullptr(GT:left == right)' message='Failure! |[Loc: qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp(0)|]' details='The computed value is expected to be greater than the baseline, but is not|n Computed (lhs): "nullptr"|n Baseline (rhs): "nullptr"' flowId='tst_ExtendedCompare']
 ##teamcity[testFinished name='compareToNullptr(GT:left == right)' flowId='tst_ExtendedCompare']
 ##teamcity[testStarted name='compareToNullptr(GT:left < right)' flowId='tst_ExtendedCompare']
-##teamcity[testFailed name='compareToNullptr(GT:left < right)' message='Failure! |[Loc: qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp(0)|]' details='Left value is expected to be greater than right value, but is not|n Left (lhs): "nullptr"|n Right (rhs): 1' flowId='tst_ExtendedCompare']
+##teamcity[testFailed name='compareToNullptr(GT:left < right)' message='Failure! |[Loc: qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp(0)|]' details='The computed value is expected to be greater than the baseline, but is not|n Computed (lhs): "nullptr"|n Baseline (rhs): 1' flowId='tst_ExtendedCompare']
 ##teamcity[testFinished name='compareToNullptr(GT:left < right)' flowId='tst_ExtendedCompare']
 ##teamcity[testStarted name='compareToNullptr(GT:left > right)' flowId='tst_ExtendedCompare']
 ##teamcity[testFinished name='compareToNullptr(GT:left > right)' flowId='tst_ExtendedCompare']
 ##teamcity[testStarted name='compareToNullptr(GE:left == right)' flowId='tst_ExtendedCompare']
 ##teamcity[testFinished name='compareToNullptr(GE:left == right)' flowId='tst_ExtendedCompare']
 ##teamcity[testStarted name='compareToNullptr(GE:left < right)' flowId='tst_ExtendedCompare']
-##teamcity[testFailed name='compareToNullptr(GE:left < right)' message='Failure! |[Loc: qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp(0)|]' details='Left value is expected to be greater than or equal to right value, but is not|n Left (lhs): "nullptr"|n Right (rhs): 1' flowId='tst_ExtendedCompare']
+##teamcity[testFailed name='compareToNullptr(GE:left < right)' message='Failure! |[Loc: qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp(0)|]' details='The computed value is expected to be greater than or equal to the baseline, but is not|n Computed (lhs): "nullptr"|n Baseline (rhs): 1' flowId='tst_ExtendedCompare']
 ##teamcity[testFinished name='compareToNullptr(GE:left < right)' flowId='tst_ExtendedCompare']
 ##teamcity[testStarted name='compareToNullptr(GE:left > right)' flowId='tst_ExtendedCompare']
 ##teamcity[testFinished name='compareToNullptr(GE:left > right)' flowId='tst_ExtendedCompare']
 ##teamcity[testStarted name='compareUnregistereEnum(EQ:left == right)' flowId='tst_ExtendedCompare']
 ##teamcity[testFinished name='compareUnregistereEnum(EQ:left == right)' flowId='tst_ExtendedCompare']
 ##teamcity[testStarted name='compareUnregistereEnum(EQ:left < right)' flowId='tst_ExtendedCompare']
-##teamcity[testFailed name='compareUnregistereEnum(EQ:left < right)' message='Failure! |[Loc: qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp(0)|]' details='Left value is expected to be equal to right value, but is not|n Left (lhs): 0|n Right (rhs): 1' flowId='tst_ExtendedCompare']
+##teamcity[testFailed name='compareUnregistereEnum(EQ:left < right)' message='Failure! |[Loc: qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp(0)|]' details='The computed value is expected to be equal to the baseline, but is not|n Computed (lhs): 0|n Baseline (rhs): 1' flowId='tst_ExtendedCompare']
 ##teamcity[testFinished name='compareUnregistereEnum(EQ:left < right)' flowId='tst_ExtendedCompare']
 ##teamcity[testStarted name='compareUnregistereEnum(EQ:left > right)' flowId='tst_ExtendedCompare']
-##teamcity[testFailed name='compareUnregistereEnum(EQ:left > right)' message='Failure! |[Loc: qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp(0)|]' details='Left value is expected to be equal to right value, but is not|n Left (lhs): 1|n Right (rhs): 0' flowId='tst_ExtendedCompare']
+##teamcity[testFailed name='compareUnregistereEnum(EQ:left > right)' message='Failure! |[Loc: qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp(0)|]' details='The computed value is expected to be equal to the baseline, but is not|n Computed (lhs): 1|n Baseline (rhs): 0' flowId='tst_ExtendedCompare']
 ##teamcity[testFinished name='compareUnregistereEnum(EQ:left > right)' flowId='tst_ExtendedCompare']
 ##teamcity[testStarted name='compareUnregistereEnum(NE:left == right)' flowId='tst_ExtendedCompare']
-##teamcity[testFailed name='compareUnregistereEnum(NE:left == right)' message='Failure! |[Loc: qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp(0)|]' details='Left value is expected to be different from right value, but is not|n Left (lhs): 0|n Right (rhs): 0' flowId='tst_ExtendedCompare']
+##teamcity[testFailed name='compareUnregistereEnum(NE:left == right)' message='Failure! |[Loc: qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp(0)|]' details='The computed value is expected to be different from the baseline, but is not|n Computed (lhs): 0|n Baseline (rhs): 0' flowId='tst_ExtendedCompare']
 ##teamcity[testFinished name='compareUnregistereEnum(NE:left == right)' flowId='tst_ExtendedCompare']
 ##teamcity[testStarted name='compareUnregistereEnum(NE:left < right)' flowId='tst_ExtendedCompare']
 ##teamcity[testFinished name='compareUnregistereEnum(NE:left < right)' flowId='tst_ExtendedCompare']
 ##teamcity[testStarted name='compareUnregistereEnum(NE:left > right)' flowId='tst_ExtendedCompare']
 ##teamcity[testFinished name='compareUnregistereEnum(NE:left > right)' flowId='tst_ExtendedCompare']
 ##teamcity[testStarted name='compareUnregistereEnum(LT:left == right)' flowId='tst_ExtendedCompare']
-##teamcity[testFailed name='compareUnregistereEnum(LT:left == right)' message='Failure! |[Loc: qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp(0)|]' details='Left value is expected to be less than right value, but is not|n Left (lhs): 0|n Right (rhs): 0' flowId='tst_ExtendedCompare']
+##teamcity[testFailed name='compareUnregistereEnum(LT:left == right)' message='Failure! |[Loc: qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp(0)|]' details='The computed value is expected to be less than the baseline, but is not|n Computed (lhs): 0|n Baseline (rhs): 0' flowId='tst_ExtendedCompare']
 ##teamcity[testFinished name='compareUnregistereEnum(LT:left == right)' flowId='tst_ExtendedCompare']
 ##teamcity[testStarted name='compareUnregistereEnum(LT:left < right)' flowId='tst_ExtendedCompare']
 ##teamcity[testFinished name='compareUnregistereEnum(LT:left < right)' flowId='tst_ExtendedCompare']
 ##teamcity[testStarted name='compareUnregistereEnum(LT:left > right)' flowId='tst_ExtendedCompare']
-##teamcity[testFailed name='compareUnregistereEnum(LT:left > right)' message='Failure! |[Loc: qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp(0)|]' details='Left value is expected to be less than right value, but is not|n Left (lhs): 1|n Right (rhs): 0' flowId='tst_ExtendedCompare']
+##teamcity[testFailed name='compareUnregistereEnum(LT:left > right)' message='Failure! |[Loc: qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp(0)|]' details='The computed value is expected to be less than the baseline, but is not|n Computed (lhs): 1|n Baseline (rhs): 0' flowId='tst_ExtendedCompare']
 ##teamcity[testFinished name='compareUnregistereEnum(LT:left > right)' flowId='tst_ExtendedCompare']
 ##teamcity[testStarted name='compareUnregistereEnum(LE:left == right)' flowId='tst_ExtendedCompare']
 ##teamcity[testFinished name='compareUnregistereEnum(LE:left == right)' flowId='tst_ExtendedCompare']
 ##teamcity[testStarted name='compareUnregistereEnum(LE:left < right)' flowId='tst_ExtendedCompare']
 ##teamcity[testFinished name='compareUnregistereEnum(LE:left < right)' flowId='tst_ExtendedCompare']
 ##teamcity[testStarted name='compareUnregistereEnum(LE:left > right)' flowId='tst_ExtendedCompare']
-##teamcity[testFailed name='compareUnregistereEnum(LE:left > right)' message='Failure! |[Loc: qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp(0)|]' details='Left value is expected to be less than or equal to right value, but is not|n Left (lhs): 1|n Right (rhs): 0' flowId='tst_ExtendedCompare']
+##teamcity[testFailed name='compareUnregistereEnum(LE:left > right)' message='Failure! |[Loc: qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp(0)|]' details='The computed value is expected to be less than or equal to the baseline, but is not|n Computed (lhs): 1|n Baseline (rhs): 0' flowId='tst_ExtendedCompare']
 ##teamcity[testFinished name='compareUnregistereEnum(LE:left > right)' flowId='tst_ExtendedCompare']
 ##teamcity[testStarted name='compareUnregistereEnum(GT:left == right)' flowId='tst_ExtendedCompare']
-##teamcity[testFailed name='compareUnregistereEnum(GT:left == right)' message='Failure! |[Loc: qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp(0)|]' details='Left value is expected to be greater than right value, but is not|n Left (lhs): 0|n Right (rhs): 0' flowId='tst_ExtendedCompare']
+##teamcity[testFailed name='compareUnregistereEnum(GT:left == right)' message='Failure! |[Loc: qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp(0)|]' details='The computed value is expected to be greater than the baseline, but is not|n Computed (lhs): 0|n Baseline (rhs): 0' flowId='tst_ExtendedCompare']
 ##teamcity[testFinished name='compareUnregistereEnum(GT:left == right)' flowId='tst_ExtendedCompare']
 ##teamcity[testStarted name='compareUnregistereEnum(GT:left < right)' flowId='tst_ExtendedCompare']
-##teamcity[testFailed name='compareUnregistereEnum(GT:left < right)' message='Failure! |[Loc: qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp(0)|]' details='Left value is expected to be greater than right value, but is not|n Left (lhs): 0|n Right (rhs): 1' flowId='tst_ExtendedCompare']
+##teamcity[testFailed name='compareUnregistereEnum(GT:left < right)' message='Failure! |[Loc: qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp(0)|]' details='The computed value is expected to be greater than the baseline, but is not|n Computed (lhs): 0|n Baseline (rhs): 1' flowId='tst_ExtendedCompare']
 ##teamcity[testFinished name='compareUnregistereEnum(GT:left < right)' flowId='tst_ExtendedCompare']
 ##teamcity[testStarted name='compareUnregistereEnum(GT:left > right)' flowId='tst_ExtendedCompare']
 ##teamcity[testFinished name='compareUnregistereEnum(GT:left > right)' flowId='tst_ExtendedCompare']
 ##teamcity[testStarted name='compareUnregistereEnum(GE:left == right)' flowId='tst_ExtendedCompare']
 ##teamcity[testFinished name='compareUnregistereEnum(GE:left == right)' flowId='tst_ExtendedCompare']
 ##teamcity[testStarted name='compareUnregistereEnum(GE:left < right)' flowId='tst_ExtendedCompare']
-##teamcity[testFailed name='compareUnregistereEnum(GE:left < right)' message='Failure! |[Loc: qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp(0)|]' details='Left value is expected to be greater than or equal to right value, but is not|n Left (lhs): 0|n Right (rhs): 1' flowId='tst_ExtendedCompare']
+##teamcity[testFailed name='compareUnregistereEnum(GE:left < right)' message='Failure! |[Loc: qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp(0)|]' details='The computed value is expected to be greater than or equal to the baseline, but is not|n Computed (lhs): 0|n Baseline (rhs): 1' flowId='tst_ExtendedCompare']
 ##teamcity[testFinished name='compareUnregistereEnum(GE:left < right)' flowId='tst_ExtendedCompare']
 ##teamcity[testStarted name='compareUnregistereEnum(GE:left > right)' flowId='tst_ExtendedCompare']
 ##teamcity[testFinished name='compareUnregistereEnum(GE:left > right)' flowId='tst_ExtendedCompare']
 ##teamcity[testStarted name='compareRegistereEnum(EQ:left == right)' flowId='tst_ExtendedCompare']
 ##teamcity[testFinished name='compareRegistereEnum(EQ:left == right)' flowId='tst_ExtendedCompare']
 ##teamcity[testStarted name='compareRegistereEnum(EQ:left < right)' flowId='tst_ExtendedCompare']
-##teamcity[testFailed name='compareRegistereEnum(EQ:left < right)' message='Failure! |[Loc: qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp(0)|]' details='Left value is expected to be equal to right value, but is not|n Left (lhs): Monday|n Right (rhs): Sunday' flowId='tst_ExtendedCompare']
+##teamcity[testFailed name='compareRegistereEnum(EQ:left < right)' message='Failure! |[Loc: qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp(0)|]' details='The computed value is expected to be equal to the baseline, but is not|n Computed (lhs): Monday|n Baseline (rhs): Sunday' flowId='tst_ExtendedCompare']
 ##teamcity[testFinished name='compareRegistereEnum(EQ:left < right)' flowId='tst_ExtendedCompare']
 ##teamcity[testStarted name='compareRegistereEnum(EQ:left > right)' flowId='tst_ExtendedCompare']
-##teamcity[testFailed name='compareRegistereEnum(EQ:left > right)' message='Failure! |[Loc: qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp(0)|]' details='Left value is expected to be equal to right value, but is not|n Left (lhs): Sunday|n Right (rhs): Monday' flowId='tst_ExtendedCompare']
+##teamcity[testFailed name='compareRegistereEnum(EQ:left > right)' message='Failure! |[Loc: qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp(0)|]' details='The computed value is expected to be equal to the baseline, but is not|n Computed (lhs): Sunday|n Baseline (rhs): Monday' flowId='tst_ExtendedCompare']
 ##teamcity[testFinished name='compareRegistereEnum(EQ:left > right)' flowId='tst_ExtendedCompare']
 ##teamcity[testStarted name='compareRegistereEnum(NE:left == right)' flowId='tst_ExtendedCompare']
-##teamcity[testFailed name='compareRegistereEnum(NE:left == right)' message='Failure! |[Loc: qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp(0)|]' details='Left value is expected to be different from right value, but is not|n Left (lhs): Monday|n Right (rhs): Monday' flowId='tst_ExtendedCompare']
+##teamcity[testFailed name='compareRegistereEnum(NE:left == right)' message='Failure! |[Loc: qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp(0)|]' details='The computed value is expected to be different from the baseline, but is not|n Computed (lhs): Monday|n Baseline (rhs): Monday' flowId='tst_ExtendedCompare']
 ##teamcity[testFinished name='compareRegistereEnum(NE:left == right)' flowId='tst_ExtendedCompare']
 ##teamcity[testStarted name='compareRegistereEnum(NE:left < right)' flowId='tst_ExtendedCompare']
 ##teamcity[testFinished name='compareRegistereEnum(NE:left < right)' flowId='tst_ExtendedCompare']
 ##teamcity[testStarted name='compareRegistereEnum(NE:left > right)' flowId='tst_ExtendedCompare']
 ##teamcity[testFinished name='compareRegistereEnum(NE:left > right)' flowId='tst_ExtendedCompare']
 ##teamcity[testStarted name='compareRegistereEnum(LT:left == right)' flowId='tst_ExtendedCompare']
-##teamcity[testFailed name='compareRegistereEnum(LT:left == right)' message='Failure! |[Loc: qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp(0)|]' details='Left value is expected to be less than right value, but is not|n Left (lhs): Monday|n Right (rhs): Monday' flowId='tst_ExtendedCompare']
+##teamcity[testFailed name='compareRegistereEnum(LT:left == right)' message='Failure! |[Loc: qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp(0)|]' details='The computed value is expected to be less than the baseline, but is not|n Computed (lhs): Monday|n Baseline (rhs): Monday' flowId='tst_ExtendedCompare']
 ##teamcity[testFinished name='compareRegistereEnum(LT:left == right)' flowId='tst_ExtendedCompare']
 ##teamcity[testStarted name='compareRegistereEnum(LT:left < right)' flowId='tst_ExtendedCompare']
 ##teamcity[testFinished name='compareRegistereEnum(LT:left < right)' flowId='tst_ExtendedCompare']
 ##teamcity[testStarted name='compareRegistereEnum(LT:left > right)' flowId='tst_ExtendedCompare']
-##teamcity[testFailed name='compareRegistereEnum(LT:left > right)' message='Failure! |[Loc: qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp(0)|]' details='Left value is expected to be less than right value, but is not|n Left (lhs): Sunday|n Right (rhs): Monday' flowId='tst_ExtendedCompare']
+##teamcity[testFailed name='compareRegistereEnum(LT:left > right)' message='Failure! |[Loc: qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp(0)|]' details='The computed value is expected to be less than the baseline, but is not|n Computed (lhs): Sunday|n Baseline (rhs): Monday' flowId='tst_ExtendedCompare']
 ##teamcity[testFinished name='compareRegistereEnum(LT:left > right)' flowId='tst_ExtendedCompare']
 ##teamcity[testStarted name='compareRegistereEnum(LE:left == right)' flowId='tst_ExtendedCompare']
 ##teamcity[testFinished name='compareRegistereEnum(LE:left == right)' flowId='tst_ExtendedCompare']
 ##teamcity[testStarted name='compareRegistereEnum(LE:left < right)' flowId='tst_ExtendedCompare']
 ##teamcity[testFinished name='compareRegistereEnum(LE:left < right)' flowId='tst_ExtendedCompare']
 ##teamcity[testStarted name='compareRegistereEnum(LE:left > right)' flowId='tst_ExtendedCompare']
-##teamcity[testFailed name='compareRegistereEnum(LE:left > right)' message='Failure! |[Loc: qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp(0)|]' details='Left value is expected to be less than or equal to right value, but is not|n Left (lhs): Sunday|n Right (rhs): Monday' flowId='tst_ExtendedCompare']
+##teamcity[testFailed name='compareRegistereEnum(LE:left > right)' message='Failure! |[Loc: qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp(0)|]' details='The computed value is expected to be less than or equal to the baseline, but is not|n Computed (lhs): Sunday|n Baseline (rhs): Monday' flowId='tst_ExtendedCompare']
 ##teamcity[testFinished name='compareRegistereEnum(LE:left > right)' flowId='tst_ExtendedCompare']
 ##teamcity[testStarted name='compareRegistereEnum(GT:left == right)' flowId='tst_ExtendedCompare']
-##teamcity[testFailed name='compareRegistereEnum(GT:left == right)' message='Failure! |[Loc: qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp(0)|]' details='Left value is expected to be greater than right value, but is not|n Left (lhs): Monday|n Right (rhs): Monday' flowId='tst_ExtendedCompare']
+##teamcity[testFailed name='compareRegistereEnum(GT:left == right)' message='Failure! |[Loc: qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp(0)|]' details='The computed value is expected to be greater than the baseline, but is not|n Computed (lhs): Monday|n Baseline (rhs): Monday' flowId='tst_ExtendedCompare']
 ##teamcity[testFinished name='compareRegistereEnum(GT:left == right)' flowId='tst_ExtendedCompare']
 ##teamcity[testStarted name='compareRegistereEnum(GT:left < right)' flowId='tst_ExtendedCompare']
-##teamcity[testFailed name='compareRegistereEnum(GT:left < right)' message='Failure! |[Loc: qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp(0)|]' details='Left value is expected to be greater than right value, but is not|n Left (lhs): Monday|n Right (rhs): Sunday' flowId='tst_ExtendedCompare']
+##teamcity[testFailed name='compareRegistereEnum(GT:left < right)' message='Failure! |[Loc: qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp(0)|]' details='The computed value is expected to be greater than the baseline, but is not|n Computed (lhs): Monday|n Baseline (rhs): Sunday' flowId='tst_ExtendedCompare']
 ##teamcity[testFinished name='compareRegistereEnum(GT:left < right)' flowId='tst_ExtendedCompare']
 ##teamcity[testStarted name='compareRegistereEnum(GT:left > right)' flowId='tst_ExtendedCompare']
 ##teamcity[testFinished name='compareRegistereEnum(GT:left > right)' flowId='tst_ExtendedCompare']
 ##teamcity[testStarted name='compareRegistereEnum(GE:left == right)' flowId='tst_ExtendedCompare']
 ##teamcity[testFinished name='compareRegistereEnum(GE:left == right)' flowId='tst_ExtendedCompare']
 ##teamcity[testStarted name='compareRegistereEnum(GE:left < right)' flowId='tst_ExtendedCompare']
-##teamcity[testFailed name='compareRegistereEnum(GE:left < right)' message='Failure! |[Loc: qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp(0)|]' details='Left value is expected to be greater than or equal to right value, but is not|n Left (lhs): Monday|n Right (rhs): Sunday' flowId='tst_ExtendedCompare']
+##teamcity[testFailed name='compareRegistereEnum(GE:left < right)' message='Failure! |[Loc: qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp(0)|]' details='The computed value is expected to be greater than or equal to the baseline, but is not|n Computed (lhs): Monday|n Baseline (rhs): Sunday' flowId='tst_ExtendedCompare']
 ##teamcity[testFinished name='compareRegistereEnum(GE:left < right)' flowId='tst_ExtendedCompare']
 ##teamcity[testStarted name='compareRegistereEnum(GE:left > right)' flowId='tst_ExtendedCompare']
 ##teamcity[testFinished name='compareRegistereEnum(GE:left > right)' flowId='tst_ExtendedCompare']
 ##teamcity[testStarted name='compareCustomTypes(EQ:left == right)' flowId='tst_ExtendedCompare']
 ##teamcity[testFinished name='compareCustomTypes(EQ:left == right)' flowId='tst_ExtendedCompare']
 ##teamcity[testStarted name='compareCustomTypes(EQ:left < right)' flowId='tst_ExtendedCompare']
-##teamcity[testFailed name='compareCustomTypes(EQ:left < right)' message='Failure! |[Loc: qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp(0)|]' details='Left value is expected to be equal to right value, but is not|n Left (lhs): MyClass(1)|n Right (rhs): MyClass(2)' flowId='tst_ExtendedCompare']
+##teamcity[testFailed name='compareCustomTypes(EQ:left < right)' message='Failure! |[Loc: qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp(0)|]' details='The computed value is expected to be equal to the baseline, but is not|n Computed (lhs): MyClass(1)|n Baseline (rhs): MyClass(2)' flowId='tst_ExtendedCompare']
 ##teamcity[testFinished name='compareCustomTypes(EQ:left < right)' flowId='tst_ExtendedCompare']
 ##teamcity[testStarted name='compareCustomTypes(EQ:left > right)' flowId='tst_ExtendedCompare']
-##teamcity[testFailed name='compareCustomTypes(EQ:left > right)' message='Failure! |[Loc: qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp(0)|]' details='Left value is expected to be equal to right value, but is not|n Left (lhs): MyClass(2)|n Right (rhs): MyClass(1)' flowId='tst_ExtendedCompare']
+##teamcity[testFailed name='compareCustomTypes(EQ:left > right)' message='Failure! |[Loc: qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp(0)|]' details='The computed value is expected to be equal to the baseline, but is not|n Computed (lhs): MyClass(2)|n Baseline (rhs): MyClass(1)' flowId='tst_ExtendedCompare']
 ##teamcity[testFinished name='compareCustomTypes(EQ:left > right)' flowId='tst_ExtendedCompare']
 ##teamcity[testStarted name='compareCustomTypes(NE:left == right)' flowId='tst_ExtendedCompare']
-##teamcity[testFailed name='compareCustomTypes(NE:left == right)' message='Failure! |[Loc: qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp(0)|]' details='Left value is expected to be different from right value, but is not|n Left (lhs): MyClass(1)|n Right (rhs): MyClass(1)' flowId='tst_ExtendedCompare']
+##teamcity[testFailed name='compareCustomTypes(NE:left == right)' message='Failure! |[Loc: qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp(0)|]' details='The computed value is expected to be different from the baseline, but is not|n Computed (lhs): MyClass(1)|n Baseline (rhs): MyClass(1)' flowId='tst_ExtendedCompare']
 ##teamcity[testFinished name='compareCustomTypes(NE:left == right)' flowId='tst_ExtendedCompare']
 ##teamcity[testStarted name='compareCustomTypes(NE:left < right)' flowId='tst_ExtendedCompare']
 ##teamcity[testFinished name='compareCustomTypes(NE:left < right)' flowId='tst_ExtendedCompare']
 ##teamcity[testStarted name='compareCustomTypes(NE:left > right)' flowId='tst_ExtendedCompare']
 ##teamcity[testFinished name='compareCustomTypes(NE:left > right)' flowId='tst_ExtendedCompare']
 ##teamcity[testStarted name='compareCustomTypes(LT:left == right)' flowId='tst_ExtendedCompare']
-##teamcity[testFailed name='compareCustomTypes(LT:left == right)' message='Failure! |[Loc: qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp(0)|]' details='Left value is expected to be less than right value, but is not|n Left (lhs): MyClass(1)|n Right (rhs): MyClass(1)' flowId='tst_ExtendedCompare']
+##teamcity[testFailed name='compareCustomTypes(LT:left == right)' message='Failure! |[Loc: qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp(0)|]' details='The computed value is expected to be less than the baseline, but is not|n Computed (lhs): MyClass(1)|n Baseline (rhs): MyClass(1)' flowId='tst_ExtendedCompare']
 ##teamcity[testFinished name='compareCustomTypes(LT:left == right)' flowId='tst_ExtendedCompare']
 ##teamcity[testStarted name='compareCustomTypes(LT:left < right)' flowId='tst_ExtendedCompare']
 ##teamcity[testFinished name='compareCustomTypes(LT:left < right)' flowId='tst_ExtendedCompare']
 ##teamcity[testStarted name='compareCustomTypes(LT:left > right)' flowId='tst_ExtendedCompare']
-##teamcity[testFailed name='compareCustomTypes(LT:left > right)' message='Failure! |[Loc: qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp(0)|]' details='Left value is expected to be less than right value, but is not|n Left (lhs): MyClass(2)|n Right (rhs): MyClass(1)' flowId='tst_ExtendedCompare']
+##teamcity[testFailed name='compareCustomTypes(LT:left > right)' message='Failure! |[Loc: qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp(0)|]' details='The computed value is expected to be less than the baseline, but is not|n Computed (lhs): MyClass(2)|n Baseline (rhs): MyClass(1)' flowId='tst_ExtendedCompare']
 ##teamcity[testFinished name='compareCustomTypes(LT:left > right)' flowId='tst_ExtendedCompare']
 ##teamcity[testStarted name='compareCustomTypes(LE:left == right)' flowId='tst_ExtendedCompare']
 ##teamcity[testFinished name='compareCustomTypes(LE:left == right)' flowId='tst_ExtendedCompare']
 ##teamcity[testStarted name='compareCustomTypes(LE:left < right)' flowId='tst_ExtendedCompare']
 ##teamcity[testFinished name='compareCustomTypes(LE:left < right)' flowId='tst_ExtendedCompare']
 ##teamcity[testStarted name='compareCustomTypes(LE:left > right)' flowId='tst_ExtendedCompare']
-##teamcity[testFailed name='compareCustomTypes(LE:left > right)' message='Failure! |[Loc: qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp(0)|]' details='Left value is expected to be less than or equal to right value, but is not|n Left (lhs): MyClass(2)|n Right (rhs): MyClass(1)' flowId='tst_ExtendedCompare']
+##teamcity[testFailed name='compareCustomTypes(LE:left > right)' message='Failure! |[Loc: qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp(0)|]' details='The computed value is expected to be less than or equal to the baseline, but is not|n Computed (lhs): MyClass(2)|n Baseline (rhs): MyClass(1)' flowId='tst_ExtendedCompare']
 ##teamcity[testFinished name='compareCustomTypes(LE:left > right)' flowId='tst_ExtendedCompare']
 ##teamcity[testStarted name='compareCustomTypes(GT:left == right)' flowId='tst_ExtendedCompare']
-##teamcity[testFailed name='compareCustomTypes(GT:left == right)' message='Failure! |[Loc: qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp(0)|]' details='Left value is expected to be greater than right value, but is not|n Left (lhs): MyClass(1)|n Right (rhs): MyClass(1)' flowId='tst_ExtendedCompare']
+##teamcity[testFailed name='compareCustomTypes(GT:left == right)' message='Failure! |[Loc: qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp(0)|]' details='The computed value is expected to be greater than the baseline, but is not|n Computed (lhs): MyClass(1)|n Baseline (rhs): MyClass(1)' flowId='tst_ExtendedCompare']
 ##teamcity[testFinished name='compareCustomTypes(GT:left == right)' flowId='tst_ExtendedCompare']
 ##teamcity[testStarted name='compareCustomTypes(GT:left < right)' flowId='tst_ExtendedCompare']
-##teamcity[testFailed name='compareCustomTypes(GT:left < right)' message='Failure! |[Loc: qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp(0)|]' details='Left value is expected to be greater than right value, but is not|n Left (lhs): MyClass(1)|n Right (rhs): MyClass(2)' flowId='tst_ExtendedCompare']
+##teamcity[testFailed name='compareCustomTypes(GT:left < right)' message='Failure! |[Loc: qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp(0)|]' details='The computed value is expected to be greater than the baseline, but is not|n Computed (lhs): MyClass(1)|n Baseline (rhs): MyClass(2)' flowId='tst_ExtendedCompare']
 ##teamcity[testFinished name='compareCustomTypes(GT:left < right)' flowId='tst_ExtendedCompare']
 ##teamcity[testStarted name='compareCustomTypes(GT:left > right)' flowId='tst_ExtendedCompare']
 ##teamcity[testFinished name='compareCustomTypes(GT:left > right)' flowId='tst_ExtendedCompare']
 ##teamcity[testStarted name='compareCustomTypes(GE:left == right)' flowId='tst_ExtendedCompare']
 ##teamcity[testFinished name='compareCustomTypes(GE:left == right)' flowId='tst_ExtendedCompare']
 ##teamcity[testStarted name='compareCustomTypes(GE:left < right)' flowId='tst_ExtendedCompare']
-##teamcity[testFailed name='compareCustomTypes(GE:left < right)' message='Failure! |[Loc: qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp(0)|]' details='Left value is expected to be greater than or equal to right value, but is not|n Left (lhs): MyClass(1)|n Right (rhs): MyClass(2)' flowId='tst_ExtendedCompare']
+##teamcity[testFailed name='compareCustomTypes(GE:left < right)' message='Failure! |[Loc: qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp(0)|]' details='The computed value is expected to be greater than or equal to the baseline, but is not|n Computed (lhs): MyClass(1)|n Baseline (rhs): MyClass(2)' flowId='tst_ExtendedCompare']
 ##teamcity[testFinished name='compareCustomTypes(GE:left < right)' flowId='tst_ExtendedCompare']
 ##teamcity[testStarted name='compareCustomTypes(GE:left > right)' flowId='tst_ExtendedCompare']
 ##teamcity[testFinished name='compareCustomTypes(GE:left > right)' flowId='tst_ExtendedCompare']
 ##teamcity[testStarted name='checkComparisonForTemporaryObjects(EQ)' flowId='tst_ExtendedCompare']
-##teamcity[testFailed name='checkComparisonForTemporaryObjects(EQ)' message='Failure! |[Loc: qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp(0)|]' details='Left value is expected to be equal to right value, but is not|n Left (getClassForValue(0).getValuePointer()): MyClass(2) on memory address with index 0|n Right (getClassForValue(1).getValuePointer()): MyClass(1) on memory address with index 1' flowId='tst_ExtendedCompare']
+##teamcity[testFailed name='checkComparisonForTemporaryObjects(EQ)' message='Failure! |[Loc: qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp(0)|]' details='The computed value is expected to be equal to the baseline, but is not|n Computed (getClassForValue(0).getValuePointer()): MyClass(2) on memory address with index 0|n Baseline (getClassForValue(1).getValuePointer()): MyClass(1) on memory address with index 1' flowId='tst_ExtendedCompare']
 ##teamcity[testFinished name='checkComparisonForTemporaryObjects(EQ)' flowId='tst_ExtendedCompare']
 ##teamcity[testStarted name='checkComparisonForTemporaryObjects(NE)' flowId='tst_ExtendedCompare']
 ##teamcity[testFinished name='checkComparisonForTemporaryObjects(NE)' flowId='tst_ExtendedCompare']
@@ -371,23 +371,23 @@
 ##teamcity[testStarted name='checkComparisonForTemporaryObjects(LE)' flowId='tst_ExtendedCompare']
 ##teamcity[testFinished name='checkComparisonForTemporaryObjects(LE)' flowId='tst_ExtendedCompare']
 ##teamcity[testStarted name='checkComparisonForTemporaryObjects(GT)' flowId='tst_ExtendedCompare']
-##teamcity[testFailed name='checkComparisonForTemporaryObjects(GT)' message='Failure! |[Loc: qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp(0)|]' details='Left value is expected to be greater than right value, but is not|n Left (getClassForValue(0).getValuePointer()): MyClass(2) on memory address with index 0|n Right (getClassForValue(1).getValuePointer()): MyClass(1) on memory address with index 1' flowId='tst_ExtendedCompare']
+##teamcity[testFailed name='checkComparisonForTemporaryObjects(GT)' message='Failure! |[Loc: qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp(0)|]' details='The computed value is expected to be greater than the baseline, but is not|n Computed (getClassForValue(0).getValuePointer()): MyClass(2) on memory address with index 0|n Baseline (getClassForValue(1).getValuePointer()): MyClass(1) on memory address with index 1' flowId='tst_ExtendedCompare']
 ##teamcity[testFinished name='checkComparisonForTemporaryObjects(GT)' flowId='tst_ExtendedCompare']
 ##teamcity[testStarted name='checkComparisonForTemporaryObjects(GE)' flowId='tst_ExtendedCompare']
-##teamcity[testFailed name='checkComparisonForTemporaryObjects(GE)' message='Failure! |[Loc: qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp(0)|]' details='Left value is expected to be greater than or equal to right value, but is not|n Left (getClassForValue(0).getValuePointer()): MyClass(2) on memory address with index 0|n Right (getClassForValue(1).getValuePointer()): MyClass(1) on memory address with index 1' flowId='tst_ExtendedCompare']
+##teamcity[testFailed name='checkComparisonForTemporaryObjects(GE)' message='Failure! |[Loc: qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp(0)|]' details='The computed value is expected to be greater than or equal to the baseline, but is not|n Computed (getClassForValue(0).getValuePointer()): MyClass(2) on memory address with index 0|n Baseline (getClassForValue(1).getValuePointer()): MyClass(1) on memory address with index 1' flowId='tst_ExtendedCompare']
 ##teamcity[testFinished name='checkComparisonForTemporaryObjects(GE)' flowId='tst_ExtendedCompare']
 ##teamcity[testStarted name='checkComparisonWithTimeout(EQ)' flowId='tst_ExtendedCompare']
 ##teamcity[testFinished name='checkComparisonWithTimeout(EQ)' flowId='tst_ExtendedCompare']
 ##teamcity[testStarted name='checkComparisonWithTimeout(NE)' flowId='tst_ExtendedCompare']
 ##teamcity[testFinished name='checkComparisonWithTimeout(NE)' flowId='tst_ExtendedCompare']
 ##teamcity[testStarted name='checkComparisonWithTimeout(LT)' flowId='tst_ExtendedCompare']
-##teamcity[testFailed name='checkComparisonWithTimeout(LT)' message='Failure! |[Loc: qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp(0)|]' details='Left value is expected to be less than right value, but is not|n Left (c) : ClassWithDeferredSetter(1)|n Right (ClassWithDeferredSetter(0)): ClassWithDeferredSetter(0)' flowId='tst_ExtendedCompare']
+##teamcity[testFailed name='checkComparisonWithTimeout(LT)' message='Failure! |[Loc: qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp(0)|]' details='The computed value is expected to be less than the baseline, but is not|n Computed (c) : ClassWithDeferredSetter(1)|n Baseline (ClassWithDeferredSetter(0)): ClassWithDeferredSetter(0)' flowId='tst_ExtendedCompare']
 ##teamcity[testFinished name='checkComparisonWithTimeout(LT)' flowId='tst_ExtendedCompare']
 ##teamcity[testStarted name='checkComparisonWithTimeout(LE)' flowId='tst_ExtendedCompare']
-##teamcity[testFailed name='checkComparisonWithTimeout(LE)' message='Failure! |[Loc: qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp(0)|]' details='Left value is expected to be less than or equal to right value, but is not|n Left (c) : ClassWithDeferredSetter(1)|n Right (ClassWithDeferredSetter(-1)): ClassWithDeferredSetter(-1)' flowId='tst_ExtendedCompare']
+##teamcity[testFailed name='checkComparisonWithTimeout(LE)' message='Failure! |[Loc: qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp(0)|]' details='The computed value is expected to be less than or equal to the baseline, but is not|n Computed (c) : ClassWithDeferredSetter(1)|n Baseline (ClassWithDeferredSetter(-1)): ClassWithDeferredSetter(-1)' flowId='tst_ExtendedCompare']
 ##teamcity[testFinished name='checkComparisonWithTimeout(LE)' flowId='tst_ExtendedCompare']
 ##teamcity[testStarted name='checkComparisonWithTimeout(GT)' flowId='tst_ExtendedCompare']
-##teamcity[testFailed name='checkComparisonWithTimeout(GT)' message='Failure! |[Loc: qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp(0)|]' details='Left value is expected to be greater than right value, but is not|n Left (c) : ClassWithDeferredSetter(1)|n Right (ClassWithDeferredSetter(1)): ClassWithDeferredSetter(1)' flowId='tst_ExtendedCompare']
+##teamcity[testFailed name='checkComparisonWithTimeout(GT)' message='Failure! |[Loc: qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp(0)|]' details='The computed value is expected to be greater than the baseline, but is not|n Computed (c) : ClassWithDeferredSetter(1)|n Baseline (ClassWithDeferredSetter(1)): ClassWithDeferredSetter(1)' flowId='tst_ExtendedCompare']
 ##teamcity[testFinished name='checkComparisonWithTimeout(GT)' flowId='tst_ExtendedCompare']
 ##teamcity[testStarted name='checkComparisonWithTimeout(GE)' flowId='tst_ExtendedCompare']
 ##teamcity[testFinished name='checkComparisonWithTimeout(GE)' flowId='tst_ExtendedCompare']
diff --git a/tests/auto/testlib/selftests/expected_extendedcompare.txt b/tests/auto/testlib/selftests/expected_extendedcompare.txt
index 15f32758..08b6b6de 100644
--- a/tests/auto/testlib/selftests/expected_extendedcompare.txt
+++ b/tests/auto/testlib/selftests/expected_extendedcompare.txt
@@ -2,393 +2,393 @@
 Config: Using QtTest library
 PASS   : tst_ExtendedCompare::initTestCase()
 PASS   : tst_ExtendedCompare::compareInts(EQ:left == right)
-FAIL!  : tst_ExtendedCompare::compareInts(EQ:left < right) Left value is expected to be equal to right value, but is not
-   Left   (lhs): 1
-   Right  (rhs): 2
+FAIL!  : tst_ExtendedCompare::compareInts(EQ:left < right) The computed value is expected to be equal to the baseline, but is not
+   Computed (lhs): 1
+   Baseline (rhs): 2
    Loc: [qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp(0)]
-FAIL!  : tst_ExtendedCompare::compareInts(EQ:left > right) Left value is expected to be equal to right value, but is not
-   Left   (lhs): 2
-   Right  (rhs): 1
+FAIL!  : tst_ExtendedCompare::compareInts(EQ:left > right) The computed value is expected to be equal to the baseline, but is not
+   Computed (lhs): 2
+   Baseline (rhs): 1
    Loc: [qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp(0)]
-FAIL!  : tst_ExtendedCompare::compareInts(NE:left == right) Left value is expected to be different from right value, but is not
-   Left   (lhs): 1
-   Right  (rhs): 1
+FAIL!  : tst_ExtendedCompare::compareInts(NE:left == right) The computed value is expected to be different from the baseline, but is not
+   Computed (lhs): 1
+   Baseline (rhs): 1
    Loc: [qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp(0)]
 PASS   : tst_ExtendedCompare::compareInts(NE:left < right)
 PASS   : tst_ExtendedCompare::compareInts(NE:left > right)
-FAIL!  : tst_ExtendedCompare::compareInts(LT:left == right) Left value is expected to be less than right value, but is not
-   Left   (lhs): 1
-   Right  (rhs): 1
+FAIL!  : tst_ExtendedCompare::compareInts(LT:left == right) The computed value is expected to be less than the baseline, but is not
+   Computed (lhs): 1
+   Baseline (rhs): 1
    Loc: [qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp(0)]
 PASS   : tst_ExtendedCompare::compareInts(LT:left < right)
-FAIL!  : tst_ExtendedCompare::compareInts(LT:left > right) Left value is expected to be less than right value, but is not
-   Left   (lhs): 2
-   Right  (rhs): 1
+FAIL!  : tst_ExtendedCompare::compareInts(LT:left > right) The computed value is expected to be less than the baseline, but is not
+   Computed (lhs): 2
+   Baseline (rhs): 1
    Loc: [qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp(0)]
 PASS   : tst_ExtendedCompare::compareInts(LE:left == right)
 PASS   : tst_ExtendedCompare::compareInts(LE:left < right)
-FAIL!  : tst_ExtendedCompare::compareInts(LE:left > right) Left value is expected to be less than or equal to right value, but is not
-   Left   (lhs): 2
-   Right  (rhs): 1
+FAIL!  : tst_ExtendedCompare::compareInts(LE:left > right) The computed value is expected to be less than or equal to the baseline, but is not
+   Computed (lhs): 2
+   Baseline (rhs): 1
    Loc: [qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp(0)]
-FAIL!  : tst_ExtendedCompare::compareInts(GT:left == right) Left value is expected to be greater than right value, but is not
-   Left   (lhs): 1
-   Right  (rhs): 1
+FAIL!  : tst_ExtendedCompare::compareInts(GT:left == right) The computed value is expected to be greater than the baseline, but is not
+   Computed (lhs): 1
+   Baseline (rhs): 1
    Loc: [qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp(0)]
-FAIL!  : tst_ExtendedCompare::compareInts(GT:left < right) Left value is expected to be greater than right value, but is not
-   Left   (lhs): 1
-   Right  (rhs): 2
+FAIL!  : tst_ExtendedCompare::compareInts(GT:left < right) The computed value is expected to be greater than the baseline, but is not
+   Computed (lhs): 1
+   Baseline (rhs): 2
    Loc: [qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp(0)]
 PASS   : tst_ExtendedCompare::compareInts(GT:left > right)
 PASS   : tst_ExtendedCompare::compareInts(GE:left == right)
-FAIL!  : tst_ExtendedCompare::compareInts(GE:left < right) Left value is expected to be greater than or equal to right value, but is not
-   Left   (lhs): 1
-   Right  (rhs): 2
+FAIL!  : tst_ExtendedCompare::compareInts(GE:left < right) The computed value is expected to be greater than or equal to the baseline, but is not
+   Computed (lhs): 1
+   Baseline (rhs): 2
    Loc: [qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp(0)]
 PASS   : tst_ExtendedCompare::compareInts(GE:left > right)
 PASS   : tst_ExtendedCompare::compareFloats(EQ:left == right)
-FAIL!  : tst_ExtendedCompare::compareFloats(EQ:left < right) Left value is expected to be equal to right value, but is not
-   Left   (lhs): 1
-   Right  (rhs): 1.1
+FAIL!  : tst_ExtendedCompare::compareFloats(EQ:left < right) The computed value is expected to be equal to the baseline, but is not
+   Computed (lhs): 1
+   Baseline (rhs): 1.1
    Loc: [qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp(0)]
-FAIL!  : tst_ExtendedCompare::compareFloats(EQ:left > right) Left value is expected to be equal to right value, but is not
-   Left   (lhs): 1.1
-   Right  (rhs): 1
+FAIL!  : tst_ExtendedCompare::compareFloats(EQ:left > right) The computed value is expected to be equal to the baseline, but is not
+   Computed (lhs): 1.1
+   Baseline (rhs): 1
    Loc: [qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp(0)]
-FAIL!  : tst_ExtendedCompare::compareFloats(NE:left == right) Left value is expected to be different from right value, but is not
-   Left   (lhs): 1
-   Right  (rhs): 1
+FAIL!  : tst_ExtendedCompare::compareFloats(NE:left == right) The computed value is expected to be different from the baseline, but is not
+   Computed (lhs): 1
+   Baseline (rhs): 1
    Loc: [qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp(0)]
 PASS   : tst_ExtendedCompare::compareFloats(NE:left < right)
 PASS   : tst_ExtendedCompare::compareFloats(NE:left > right)
-FAIL!  : tst_ExtendedCompare::compareFloats(LT:left == right) Left value is expected to be less than right value, but is not
-   Left   (lhs): 1
-   Right  (rhs): 1
+FAIL!  : tst_ExtendedCompare::compareFloats(LT:left == right) The computed value is expected to be less than the baseline, but is not
+   Computed (lhs): 1
+   Baseline (rhs): 1
    Loc: [qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp(0)]
 PASS   : tst_ExtendedCompare::compareFloats(LT:left < right)
-FAIL!  : tst_ExtendedCompare::compareFloats(LT:left > right) Left value is expected to be less than right value, but is not
-   Left   (lhs): 1.1
-   Right  (rhs): 1
+FAIL!  : tst_ExtendedCompare::compareFloats(LT:left > right) The computed value is expected to be less than the baseline, but is not
+   Computed (lhs): 1.1
+   Baseline (rhs): 1
    Loc: [qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp(0)]
 PASS   : tst_ExtendedCompare::compareFloats(LE:left == right)
 PASS   : tst_ExtendedCompare::compareFloats(LE:left < right)
-FAIL!  : tst_ExtendedCompare::compareFloats(LE:left > right) Left value is expected to be less than or equal to right value, but is not
-   Left   (lhs): 1.1
-   Right  (rhs): 1
+FAIL!  : tst_ExtendedCompare::compareFloats(LE:left > right) The computed value is expected to be less than or equal to the baseline, but is not
+   Computed (lhs): 1.1
+   Baseline (rhs): 1
    Loc: [qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp(0)]
-FAIL!  : tst_ExtendedCompare::compareFloats(GT:left == right) Left value is expected to be greater than right value, but is not
-   Left   (lhs): 1
-   Right  (rhs): 1
+FAIL!  : tst_ExtendedCompare::compareFloats(GT:left == right) The computed value is expected to be greater than the baseline, but is not
+   Computed (lhs): 1
+   Baseline (rhs): 1
    Loc: [qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp(0)]
-FAIL!  : tst_ExtendedCompare::compareFloats(GT:left < right) Left value is expected to be greater than right value, but is not
-   Left   (lhs): 1
-   Right  (rhs): 1.1
+FAIL!  : tst_ExtendedCompare::compareFloats(GT:left < right) The computed value is expected to be greater than the baseline, but is not
+   Computed (lhs): 1
+   Baseline (rhs): 1.1
    Loc: [qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp(0)]
 PASS   : tst_ExtendedCompare::compareFloats(GT:left > right)
 PASS   : tst_ExtendedCompare::compareFloats(GE:left == right)
-FAIL!  : tst_ExtendedCompare::compareFloats(GE:left < right) Left value is expected to be greater than or equal to right value, but is not
-   Left   (lhs): 1
-   Right  (rhs): 1.1
+FAIL!  : tst_ExtendedCompare::compareFloats(GE:left < right) The computed value is expected to be greater than or equal to the baseline, but is not
+   Computed (lhs): 1
+   Baseline (rhs): 1.1
    Loc: [qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp(0)]
 PASS   : tst_ExtendedCompare::compareFloats(GE:left > right)
 PASS   : tst_ExtendedCompare::compareDoubles(EQ:left == right)
-FAIL!  : tst_ExtendedCompare::compareDoubles(EQ:left < right) Left value is expected to be equal to right value, but is not
-   Left   (lhs): 0
-   Right  (rhs): 0.1
+FAIL!  : tst_ExtendedCompare::compareDoubles(EQ:left < right) The computed value is expected to be equal to the baseline, but is not
+   Computed (lhs): 0
+   Baseline (rhs): 0.1
    Loc: [qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp(0)]
-FAIL!  : tst_ExtendedCompare::compareDoubles(EQ:left > right) Left value is expected to be equal to right value, but is not
-   Left   (lhs): 0.1
-   Right  (rhs): 0
+FAIL!  : tst_ExtendedCompare::compareDoubles(EQ:left > right) The computed value is expected to be equal to the baseline, but is not
+   Computed (lhs): 0.1
+   Baseline (rhs): 0
    Loc: [qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp(0)]
-FAIL!  : tst_ExtendedCompare::compareDoubles(NE:left == right) Left value is expected to be different from right value, but is not
-   Left   (lhs): 0
-   Right  (rhs): 0
+FAIL!  : tst_ExtendedCompare::compareDoubles(NE:left == right) The computed value is expected to be different from the baseline, but is not
+   Computed (lhs): 0
+   Baseline (rhs): 0
    Loc: [qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp(0)]
 PASS   : tst_ExtendedCompare::compareDoubles(NE:left < right)
 PASS   : tst_ExtendedCompare::compareDoubles(NE:left > right)
-FAIL!  : tst_ExtendedCompare::compareDoubles(LT:left == right) Left value is expected to be less than right value, but is not
-   Left   (lhs): 0
-   Right  (rhs): 0
+FAIL!  : tst_ExtendedCompare::compareDoubles(LT:left == right) The computed value is expected to be less than the baseline, but is not
+   Computed (lhs): 0
+   Baseline (rhs): 0
    Loc: [qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp(0)]
 PASS   : tst_ExtendedCompare::compareDoubles(LT:left < right)
-FAIL!  : tst_ExtendedCompare::compareDoubles(LT:left > right) Left value is expected to be less than right value, but is not
-   Left   (lhs): 0.1
-   Right  (rhs): 0
+FAIL!  : tst_ExtendedCompare::compareDoubles(LT:left > right) The computed value is expected to be less than the baseline, but is not
+   Computed (lhs): 0.1
+   Baseline (rhs): 0
    Loc: [qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp(0)]
 PASS   : tst_ExtendedCompare::compareDoubles(LE:left == right)
 PASS   : tst_ExtendedCompare::compareDoubles(LE:left < right)
-FAIL!  : tst_ExtendedCompare::compareDoubles(LE:left > right) Left value is expected to be less than or equal to right value, but is not
-   Left   (lhs): 0.1
-   Right  (rhs): 0
+FAIL!  : tst_ExtendedCompare::compareDoubles(LE:left > right) The computed value is expected to be less than or equal to the baseline, but is not
+   Computed (lhs): 0.1
+   Baseline (rhs): 0
    Loc: [qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp(0)]
-FAIL!  : tst_ExtendedCompare::compareDoubles(GT:left == right) Left value is expected to be greater than right value, but is not
-   Left   (lhs): 0
-   Right  (rhs): 0
+FAIL!  : tst_ExtendedCompare::compareDoubles(GT:left == right) The computed value is expected to be greater than the baseline, but is not
+   Computed (lhs): 0
+   Baseline (rhs): 0
    Loc: [qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp(0)]
-FAIL!  : tst_ExtendedCompare::compareDoubles(GT:left < right) Left value is expected to be greater than right value, but is not
-   Left   (lhs): 0
-   Right  (rhs): 0.1
+FAIL!  : tst_ExtendedCompare::compareDoubles(GT:left < right) The computed value is expected to be greater than the baseline, but is not
+   Computed (lhs): 0
+   Baseline (rhs): 0.1
    Loc: [qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp(0)]
 PASS   : tst_ExtendedCompare::compareDoubles(GT:left > right)
 PASS   : tst_ExtendedCompare::compareDoubles(GE:left == right)
-FAIL!  : tst_ExtendedCompare::compareDoubles(GE:left < right) Left value is expected to be greater than or equal to right value, but is not
-   Left   (lhs): 0
-   Right  (rhs): 0.1
+FAIL!  : tst_ExtendedCompare::compareDoubles(GE:left < right) The computed value is expected to be greater than or equal to the baseline, but is not
+   Computed (lhs): 0
+   Baseline (rhs): 0.1
    Loc: [qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp(0)]
 PASS   : tst_ExtendedCompare::compareDoubles(GE:left > right)
 PASS   : tst_ExtendedCompare::comparePointers(EQ:left == right)
-FAIL!  : tst_ExtendedCompare::comparePointers(EQ:left < right) Left value is expected to be equal to right value, but is not
-   Left   (lhs): 1
-   Right  (rhs): 2
+FAIL!  : tst_ExtendedCompare::comparePointers(EQ:left < right) The computed value is expected to be equal to the baseline, but is not
+   Computed (lhs): 1
+   Baseline (rhs): 2
    Loc: [qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp(0)]
-FAIL!  : tst_ExtendedCompare::comparePointers(EQ:left > right) Left value is expected to be equal to right value, but is not
-   Left   (lhs): 2
-   Right  (rhs): 1
+FAIL!  : tst_ExtendedCompare::comparePointers(EQ:left > right) The computed value is expected to be equal to the baseline, but is not
+   Computed (lhs): 2
+   Baseline (rhs): 1
    Loc: [qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp(0)]
-FAIL!  : tst_ExtendedCompare::comparePointers(NE:left == right) Left value is expected to be different from right value, but is not
-   Left   (lhs): 1
-   Right  (rhs): 1
+FAIL!  : tst_ExtendedCompare::comparePointers(NE:left == right) The computed value is expected to be different from the baseline, but is not
+   Computed (lhs): 1
+   Baseline (rhs): 1
    Loc: [qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp(0)]
 PASS   : tst_ExtendedCompare::comparePointers(NE:left < right)
 PASS   : tst_ExtendedCompare::comparePointers(NE:left > right)
-FAIL!  : tst_ExtendedCompare::comparePointers(LT:left == right) Left value is expected to be less than right value, but is not
-   Left   (lhs): 1
-   Right  (rhs): 1
+FAIL!  : tst_ExtendedCompare::comparePointers(LT:left == right) The computed value is expected to be less than the baseline, but is not
+   Computed (lhs): 1
+   Baseline (rhs): 1
    Loc: [qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp(0)]
 PASS   : tst_ExtendedCompare::comparePointers(LT:left < right)
-FAIL!  : tst_ExtendedCompare::comparePointers(LT:left > right) Left value is expected to be less than right value, but is not
-   Left   (lhs): 2
-   Right  (rhs): 1
+FAIL!  : tst_ExtendedCompare::comparePointers(LT:left > right) The computed value is expected to be less than the baseline, but is not
+   Computed (lhs): 2
+   Baseline (rhs): 1
    Loc: [qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp(0)]
 PASS   : tst_ExtendedCompare::comparePointers(LE:left == right)
 PASS   : tst_ExtendedCompare::comparePointers(LE:left < right)
-FAIL!  : tst_ExtendedCompare::comparePointers(LE:left > right) Left value is expected to be less than or equal to right value, but is not
-   Left   (lhs): 2
-   Right  (rhs): 1
+FAIL!  : tst_ExtendedCompare::comparePointers(LE:left > right) The computed value is expected to be less than or equal to the baseline, but is not
+   Computed (lhs): 2
+   Baseline (rhs): 1
    Loc: [qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp(0)]
-FAIL!  : tst_ExtendedCompare::comparePointers(GT:left == right) Left value is expected to be greater than right value, but is not
-   Left   (lhs): 1
-   Right  (rhs): 1
+FAIL!  : tst_ExtendedCompare::comparePointers(GT:left == right) The computed value is expected to be greater than the baseline, but is not
+   Computed (lhs): 1
+   Baseline (rhs): 1
    Loc: [qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp(0)]
-FAIL!  : tst_ExtendedCompare::comparePointers(GT:left < right) Left value is expected to be greater than right value, but is not
-   Left   (lhs): 1
-   Right  (rhs): 2
+FAIL!  : tst_ExtendedCompare::comparePointers(GT:left < right) The computed value is expected to be greater than the baseline, but is not
+   Computed (lhs): 1
+   Baseline (rhs): 2
    Loc: [qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp(0)]
 PASS   : tst_ExtendedCompare::comparePointers(GT:left > right)
 PASS   : tst_ExtendedCompare::comparePointers(GE:left == right)
-FAIL!  : tst_ExtendedCompare::comparePointers(GE:left < right) Left value is expected to be greater than or equal to right value, but is not
-   Left   (lhs): 1
-   Right  (rhs): 2
+FAIL!  : tst_ExtendedCompare::comparePointers(GE:left < right) The computed value is expected to be greater than or equal to the baseline, but is not
+   Computed (lhs): 1
+   Baseline (rhs): 2
    Loc: [qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp(0)]
 PASS   : tst_ExtendedCompare::comparePointers(GE:left > right)
 PASS   : tst_ExtendedCompare::compareToNullptr(EQ:left == right)
-FAIL!  : tst_ExtendedCompare::compareToNullptr(EQ:left < right) Left value is expected to be equal to right value, but is not
-   Left   (lhs): "nullptr"
-   Right  (rhs): 1
+FAIL!  : tst_ExtendedCompare::compareToNullptr(EQ:left < right) The computed value is expected to be equal to the baseline, but is not
+   Computed (lhs): "nullptr"
+   Baseline (rhs): 1
    Loc: [qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp(0)]
-FAIL!  : tst_ExtendedCompare::compareToNullptr(EQ:left > right) Left value is expected to be equal to right value, but is not
-   Left   (lhs): 1
-   Right  (rhs): "nullptr"
+FAIL!  : tst_ExtendedCompare::compareToNullptr(EQ:left > right) The computed value is expected to be equal to the baseline, but is not
+   Computed (lhs): 1
+   Baseline (rhs): "nullptr"
    Loc: [qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp(0)]
-FAIL!  : tst_ExtendedCompare::compareToNullptr(NE:left == right) Left value is expected to be different from right value, but is not
-   Left   (lhs): "nullptr"
-   Right  (rhs): "nullptr"
+FAIL!  : tst_ExtendedCompare::compareToNullptr(NE:left == right) The computed value is expected to be different from the baseline, but is not
+   Computed (lhs): "nullptr"
+   Baseline (rhs): "nullptr"
    Loc: [qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp(0)]
 PASS   : tst_ExtendedCompare::compareToNullptr(NE:left < right)
 PASS   : tst_ExtendedCompare::compareToNullptr(NE:left > right)
-FAIL!  : tst_ExtendedCompare::compareToNullptr(LT:left == right) Left value is expected to be less than right value, but is not
-   Left   (lhs): "nullptr"
-   Right  (rhs): "nullptr"
+FAIL!  : tst_ExtendedCompare::compareToNullptr(LT:left == right) The computed value is expected to be less than the baseline, but is not
+   Computed (lhs): "nullptr"
+   Baseline (rhs): "nullptr"
    Loc: [qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp(0)]
 PASS   : tst_ExtendedCompare::compareToNullptr(LT:left < right)
-FAIL!  : tst_ExtendedCompare::compareToNullptr(LT:left > right) Left value is expected to be less than right value, but is not
-   Left   (lhs): 1
-   Right  (rhs): "nullptr"
+FAIL!  : tst_ExtendedCompare::compareToNullptr(LT:left > right) The computed value is expected to be less than the baseline, but is not
+   Computed (lhs): 1
+   Baseline (rhs): "nullptr"
    Loc: [qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp(0)]
 PASS   : tst_ExtendedCompare::compareToNullptr(LE:left == right)
 PASS   : tst_ExtendedCompare::compareToNullptr(LE:left < right)
-FAIL!  : tst_ExtendedCompare::compareToNullptr(LE:left > right) Left value is expected to be less than or equal to right value, but is not
-   Left   (lhs): 1
-   Right  (rhs): "nullptr"
+FAIL!  : tst_ExtendedCompare::compareToNullptr(LE:left > right) The computed value is expected to be less than or equal to the baseline, but is not
+   Computed (lhs): 1
+   Baseline (rhs): "nullptr"
    Loc: [qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp(0)]
-FAIL!  : tst_ExtendedCompare::compareToNullptr(GT:left == right) Left value is expected to be greater than right value, but is not
-   Left   (lhs): "nullptr"
-   Right  (rhs): "nullptr"
+FAIL!  : tst_ExtendedCompare::compareToNullptr(GT:left == right) The computed value is expected to be greater than the baseline, but is not
+   Computed (lhs): "nullptr"
+   Baseline (rhs): "nullptr"
    Loc: [qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp(0)]
-FAIL!  : tst_ExtendedCompare::compareToNullptr(GT:left < right) Left value is expected to be greater than right value, but is not
-   Left   (lhs): "nullptr"
-   Right  (rhs): 1
+FAIL!  : tst_ExtendedCompare::compareToNullptr(GT:left < right) The computed value is expected to be greater than the baseline, but is not
+   Computed (lhs): "nullptr"
+   Baseline (rhs): 1
    Loc: [qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp(0)]
 PASS   : tst_ExtendedCompare::compareToNullptr(GT:left > right)
 PASS   : tst_ExtendedCompare::compareToNullptr(GE:left == right)
-FAIL!  : tst_ExtendedCompare::compareToNullptr(GE:left < right) Left value is expected to be greater than or equal to right value, but is not
-   Left   (lhs): "nullptr"
-   Right  (rhs): 1
+FAIL!  : tst_ExtendedCompare::compareToNullptr(GE:left < right) The computed value is expected to be greater than or equal to the baseline, but is not
+   Computed (lhs): "nullptr"
+   Baseline (rhs): 1
    Loc: [qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp(0)]
 PASS   : tst_ExtendedCompare::compareToNullptr(GE:left > right)
 PASS   : tst_ExtendedCompare::compareUnregistereEnum(EQ:left == right)
-FAIL!  : tst_ExtendedCompare::compareUnregistereEnum(EQ:left < right) Left value is expected to be equal to right value, but is not
-   Left   (lhs): 0
-   Right  (rhs): 1
+FAIL!  : tst_ExtendedCompare::compareUnregistereEnum(EQ:left < right) The computed value is expected to be equal to the baseline, but is not
+   Computed (lhs): 0
+   Baseline (rhs): 1
    Loc: [qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp(0)]
-FAIL!  : tst_ExtendedCompare::compareUnregistereEnum(EQ:left > right) Left value is expected to be equal to right value, but is not
-   Left   (lhs): 1
-   Right  (rhs): 0
+FAIL!  : tst_ExtendedCompare::compareUnregistereEnum(EQ:left > right) The computed value is expected to be equal to the baseline, but is not
+   Computed (lhs): 1
+   Baseline (rhs): 0
    Loc: [qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp(0)]
-FAIL!  : tst_ExtendedCompare::compareUnregistereEnum(NE:left == right) Left value is expected to be different from right value, but is not
-   Left   (lhs): 0
-   Right  (rhs): 0
+FAIL!  : tst_ExtendedCompare::compareUnregistereEnum(NE:left == right) The computed value is expected to be different from the baseline, but is not
+   Computed (lhs): 0
+   Baseline (rhs): 0
    Loc: [qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp(0)]
 PASS   : tst_ExtendedCompare::compareUnregistereEnum(NE:left < right)
 PASS   : tst_ExtendedCompare::compareUnregistereEnum(NE:left > right)
-FAIL!  : tst_ExtendedCompare::compareUnregistereEnum(LT:left == right) Left value is expected to be less than right value, but is not
-   Left   (lhs): 0
-   Right  (rhs): 0
+FAIL!  : tst_ExtendedCompare::compareUnregistereEnum(LT:left == right) The computed value is expected to be less than the baseline, but is not
+   Computed (lhs): 0
+   Baseline (rhs): 0
    Loc: [qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp(0)]
 PASS   : tst_ExtendedCompare::compareUnregistereEnum(LT:left < right)
-FAIL!  : tst_ExtendedCompare::compareUnregistereEnum(LT:left > right) Left value is expected to be less than right value, but is not
-   Left   (lhs): 1
-   Right  (rhs): 0
+FAIL!  : tst_ExtendedCompare::compareUnregistereEnum(LT:left > right) The computed value is expected to be less than the baseline, but is not
+   Computed (lhs): 1
+   Baseline (rhs): 0
    Loc: [qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp(0)]
 PASS   : tst_ExtendedCompare::compareUnregistereEnum(LE:left == right)
 PASS   : tst_ExtendedCompare::compareUnregistereEnum(LE:left < right)
-FAIL!  : tst_ExtendedCompare::compareUnregistereEnum(LE:left > right) Left value is expected to be less than or equal to right value, but is not
-   Left   (lhs): 1
-   Right  (rhs): 0
+FAIL!  : tst_ExtendedCompare::compareUnregistereEnum(LE:left > right) The computed value is expected to be less than or equal to the baseline, but is not
+   Computed (lhs): 1
+   Baseline (rhs): 0
    Loc: [qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp(0)]
-FAIL!  : tst_ExtendedCompare::compareUnregistereEnum(GT:left == right) Left value is expected to be greater than right value, but is not
-   Left   (lhs): 0
-   Right  (rhs): 0
+FAIL!  : tst_ExtendedCompare::compareUnregistereEnum(GT:left == right) The computed value is expected to be greater than the baseline, but is not
+   Computed (lhs): 0
+   Baseline (rhs): 0
    Loc: [qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp(0)]
-FAIL!  : tst_ExtendedCompare::compareUnregistereEnum(GT:left < right) Left value is expected to be greater than right value, but is not
-   Left   (lhs): 0
-   Right  (rhs): 1
+FAIL!  : tst_ExtendedCompare::compareUnregistereEnum(GT:left < right) The computed value is expected to be greater than the baseline, but is not
+   Computed (lhs): 0
+   Baseline (rhs): 1
    Loc: [qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp(0)]
 PASS   : tst_ExtendedCompare::compareUnregistereEnum(GT:left > right)
 PASS   : tst_ExtendedCompare::compareUnregistereEnum(GE:left == right)
-FAIL!  : tst_ExtendedCompare::compareUnregistereEnum(GE:left < right) Left value is expected to be greater than or equal to right value, but is not
-   Left   (lhs): 0
-   Right  (rhs): 1
+FAIL!  : tst_ExtendedCompare::compareUnregistereEnum(GE:left < right) The computed value is expected to be greater than or equal to the baseline, but is not
+   Computed (lhs): 0
+   Baseline (rhs): 1
    Loc: [qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp(0)]
 PASS   : tst_ExtendedCompare::compareUnregistereEnum(GE:left > right)
 PASS   : tst_ExtendedCompare::compareRegistereEnum(EQ:left == right)
-FAIL!  : tst_ExtendedCompare::compareRegistereEnum(EQ:left < right) Left value is expected to be equal to right value, but is not
-   Left   (lhs): Monday
-   Right  (rhs): Sunday
+FAIL!  : tst_ExtendedCompare::compareRegistereEnum(EQ:left < right) The computed value is expected to be equal to the baseline, but is not
+   Computed (lhs): Monday
+   Baseline (rhs): Sunday
    Loc: [qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp(0)]
-FAIL!  : tst_ExtendedCompare::compareRegistereEnum(EQ:left > right) Left value is expected to be equal to right value, but is not
-   Left   (lhs): Sunday
-   Right  (rhs): Monday
+FAIL!  : tst_ExtendedCompare::compareRegistereEnum(EQ:left > right) The computed value is expected to be equal to the baseline, but is not
+   Computed (lhs): Sunday
+   Baseline (rhs): Monday
    Loc: [qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp(0)]
-FAIL!  : tst_ExtendedCompare::compareRegistereEnum(NE:left == right) Left value is expected to be different from right value, but is not
-   Left   (lhs): Monday
-   Right  (rhs): Monday
+FAIL!  : tst_ExtendedCompare::compareRegistereEnum(NE:left == right) The computed value is expected to be different from the baseline, but is not
+   Computed (lhs): Monday
+   Baseline (rhs): Monday
    Loc: [qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp(0)]
 PASS   : tst_ExtendedCompare::compareRegistereEnum(NE:left < right)
 PASS   : tst_ExtendedCompare::compareRegistereEnum(NE:left > right)
-FAIL!  : tst_ExtendedCompare::compareRegistereEnum(LT:left == right) Left value is expected to be less than right value, but is not
-   Left   (lhs): Monday
-   Right  (rhs): Monday
+FAIL!  : tst_ExtendedCompare::compareRegistereEnum(LT:left == right) The computed value is expected to be less than the baseline, but is not
+   Computed (lhs): Monday
+   Baseline (rhs): Monday
    Loc: [qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp(0)]
 PASS   : tst_ExtendedCompare::compareRegistereEnum(LT:left < right)
-FAIL!  : tst_ExtendedCompare::compareRegistereEnum(LT:left > right) Left value is expected to be less than right value, but is not
-   Left   (lhs): Sunday
-   Right  (rhs): Monday
+FAIL!  : tst_ExtendedCompare::compareRegistereEnum(LT:left > right) The computed value is expected to be less than the baseline, but is not
+   Computed (lhs): Sunday
+   Baseline (rhs): Monday
    Loc: [qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp(0)]
 PASS   : tst_ExtendedCompare::compareRegistereEnum(LE:left == right)
 PASS   : tst_ExtendedCompare::compareRegistereEnum(LE:left < right)
-FAIL!  : tst_ExtendedCompare::compareRegistereEnum(LE:left > right) Left value is expected to be less than or equal to right value, but is not
-   Left   (lhs): Sunday
-   Right  (rhs): Monday
+FAIL!  : tst_ExtendedCompare::compareRegistereEnum(LE:left > right) The computed value is expected to be less than or equal to the baseline, but is not
+   Computed (lhs): Sunday
+   Baseline (rhs): Monday
    Loc: [qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp(0)]
-FAIL!  : tst_ExtendedCompare::compareRegistereEnum(GT:left == right) Left value is expected to be greater than right value, but is not
-   Left   (lhs): Monday
-   Right  (rhs): Monday
+FAIL!  : tst_ExtendedCompare::compareRegistereEnum(GT:left == right) The computed value is expected to be greater than the baseline, but is not
+   Computed (lhs): Monday
+   Baseline (rhs): Monday
    Loc: [qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp(0)]
-FAIL!  : tst_ExtendedCompare::compareRegistereEnum(GT:left < right) Left value is expected to be greater than right value, but is not
-   Left   (lhs): Monday
-   Right  (rhs): Sunday
+FAIL!  : tst_ExtendedCompare::compareRegistereEnum(GT:left < right) The computed value is expected to be greater than the baseline, but is not
+   Computed (lhs): Monday
+   Baseline (rhs): Sunday
    Loc: [qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp(0)]
 PASS   : tst_ExtendedCompare::compareRegistereEnum(GT:left > right)
 PASS   : tst_ExtendedCompare::compareRegistereEnum(GE:left == right)
-FAIL!  : tst_ExtendedCompare::compareRegistereEnum(GE:left < right) Left value is expected to be greater than or equal to right value, but is not
-   Left   (lhs): Monday
-   Right  (rhs): Sunday
+FAIL!  : tst_ExtendedCompare::compareRegistereEnum(GE:left < right) The computed value is expected to be greater than or equal to the baseline, but is not
+   Computed (lhs): Monday
+   Baseline (rhs): Sunday
    Loc: [qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp(0)]
 PASS   : tst_ExtendedCompare::compareRegistereEnum(GE:left > right)
 PASS   : tst_ExtendedCompare::compareCustomTypes(EQ:left == right)
-FAIL!  : tst_ExtendedCompare::compareCustomTypes(EQ:left < right) Left value is expected to be equal to right value, but is not
-   Left   (lhs): MyClass(1)
-   Right  (rhs): MyClass(2)
+FAIL!  : tst_ExtendedCompare::compareCustomTypes(EQ:left < right) The computed value is expected to be equal to the baseline, but is not
+   Computed (lhs): MyClass(1)
+   Baseline (rhs): MyClass(2)
    Loc: [qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp(0)]
-FAIL!  : tst_ExtendedCompare::compareCustomTypes(EQ:left > right) Left value is expected to be equal to right value, but is not
-   Left   (lhs): MyClass(2)
-   Right  (rhs): MyClass(1)
+FAIL!  : tst_ExtendedCompare::compareCustomTypes(EQ:left > right) The computed value is expected to be equal to the baseline, but is not
+   Computed (lhs): MyClass(2)
+   Baseline (rhs): MyClass(1)
    Loc: [qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp(0)]
-FAIL!  : tst_ExtendedCompare::compareCustomTypes(NE:left == right) Left value is expected to be different from right value, but is not
-   Left   (lhs): MyClass(1)
-   Right  (rhs): MyClass(1)
+FAIL!  : tst_ExtendedCompare::compareCustomTypes(NE:left == right) The computed value is expected to be different from the baseline, but is not
+   Computed (lhs): MyClass(1)
+   Baseline (rhs): MyClass(1)
    Loc: [qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp(0)]
 PASS   : tst_ExtendedCompare::compareCustomTypes(NE:left < right)
 PASS   : tst_ExtendedCompare::compareCustomTypes(NE:left > right)
-FAIL!  : tst_ExtendedCompare::compareCustomTypes(LT:left == right) Left value is expected to be less than right value, but is not
-   Left   (lhs): MyClass(1)
-   Right  (rhs): MyClass(1)
+FAIL!  : tst_ExtendedCompare::compareCustomTypes(LT:left == right) The computed value is expected to be less than the baseline, but is not
+   Computed (lhs): MyClass(1)
+   Baseline (rhs): MyClass(1)
    Loc: [qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp(0)]
 PASS   : tst_ExtendedCompare::compareCustomTypes(LT:left < right)
-FAIL!  : tst_ExtendedCompare::compareCustomTypes(LT:left > right) Left value is expected to be less than right value, but is not
-   Left   (lhs): MyClass(2)
-   Right  (rhs): MyClass(1)
+FAIL!  : tst_ExtendedCompare::compareCustomTypes(LT:left > right) The computed value is expected to be less than the baseline, but is not
+   Computed (lhs): MyClass(2)
+   Baseline (rhs): MyClass(1)
    Loc: [qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp(0)]
 PASS   : tst_ExtendedCompare::compareCustomTypes(LE:left == right)
 PASS   : tst_ExtendedCompare::compareCustomTypes(LE:left < right)
-FAIL!  : tst_ExtendedCompare::compareCustomTypes(LE:left > right) Left value is expected to be less than or equal to right value, but is not
-   Left   (lhs): MyClass(2)
-   Right  (rhs): MyClass(1)
+FAIL!  : tst_ExtendedCompare::compareCustomTypes(LE:left > right) The computed value is expected to be less than or equal to the baseline, but is not
+   Computed (lhs): MyClass(2)
+   Baseline (rhs): MyClass(1)
    Loc: [qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp(0)]
-FAIL!  : tst_ExtendedCompare::compareCustomTypes(GT:left == right) Left value is expected to be greater than right value, but is not
-   Left   (lhs): MyClass(1)
-   Right  (rhs): MyClass(1)
+FAIL!  : tst_ExtendedCompare::compareCustomTypes(GT:left == right) The computed value is expected to be greater than the baseline, but is not
+   Computed (lhs): MyClass(1)
+   Baseline (rhs): MyClass(1)
    Loc: [qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp(0)]
-FAIL!  : tst_ExtendedCompare::compareCustomTypes(GT:left < right) Left value is expected to be greater than right value, but is not
-   Left   (lhs): MyClass(1)
-   Right  (rhs): MyClass(2)
+FAIL!  : tst_ExtendedCompare::compareCustomTypes(GT:left < right) The computed value is expected to be greater than the baseline, but is not
+   Computed (lhs): MyClass(1)
+   Baseline (rhs): MyClass(2)
    Loc: [qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp(0)]
 PASS   : tst_ExtendedCompare::compareCustomTypes(GT:left > right)
 PASS   : tst_ExtendedCompare::compareCustomTypes(GE:left == right)
-FAIL!  : tst_ExtendedCompare::compareCustomTypes(GE:left < right) Left value is expected to be greater than or equal to right value, but is not
-   Left   (lhs): MyClass(1)
-   Right  (rhs): MyClass(2)
+FAIL!  : tst_ExtendedCompare::compareCustomTypes(GE:left < right) The computed value is expected to be greater than or equal to the baseline, but is not
+   Computed (lhs): MyClass(1)
+   Baseline (rhs): MyClass(2)
    Loc: [qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp(0)]
 PASS   : tst_ExtendedCompare::compareCustomTypes(GE:left > right)
-FAIL!  : tst_ExtendedCompare::checkComparisonForTemporaryObjects(EQ) Left value is expected to be equal to right value, but is not
-   Left   (getClassForValue(0).getValuePointer()): MyClass(2) on memory address with index 0
-   Right  (getClassForValue(1).getValuePointer()): MyClass(1) on memory address with index 1
+FAIL!  : tst_ExtendedCompare::checkComparisonForTemporaryObjects(EQ) The computed value is expected to be equal to the baseline, but is not
+   Computed (getClassForValue(0).getValuePointer()): MyClass(2) on memory address with index 0
+   Baseline (getClassForValue(1).getValuePointer()): MyClass(1) on memory address with index 1
    Loc: [qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp(0)]
 PASS   : tst_ExtendedCompare::checkComparisonForTemporaryObjects(NE)
 PASS   : tst_ExtendedCompare::checkComparisonForTemporaryObjects(LT)
 PASS   : tst_ExtendedCompare::checkComparisonForTemporaryObjects(LE)
-FAIL!  : tst_ExtendedCompare::checkComparisonForTemporaryObjects(GT) Left value is expected to be greater than right value, but is not
-   Left   (getClassForValue(0).getValuePointer()): MyClass(2) on memory address with index 0
-   Right  (getClassForValue(1).getValuePointer()): MyClass(1) on memory address with index 1
+FAIL!  : tst_ExtendedCompare::checkComparisonForTemporaryObjects(GT) The computed value is expected to be greater than the baseline, but is not
+   Computed (getClassForValue(0).getValuePointer()): MyClass(2) on memory address with index 0
+   Baseline (getClassForValue(1).getValuePointer()): MyClass(1) on memory address with index 1
    Loc: [qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp(0)]
-FAIL!  : tst_ExtendedCompare::checkComparisonForTemporaryObjects(GE) Left value is expected to be greater than or equal to right value, but is not
-   Left   (getClassForValue(0).getValuePointer()): MyClass(2) on memory address with index 0
-   Right  (getClassForValue(1).getValuePointer()): MyClass(1) on memory address with index 1
+FAIL!  : tst_ExtendedCompare::checkComparisonForTemporaryObjects(GE) The computed value is expected to be greater than or equal to the baseline, but is not
+   Computed (getClassForValue(0).getValuePointer()): MyClass(2) on memory address with index 0
+   Baseline (getClassForValue(1).getValuePointer()): MyClass(1) on memory address with index 1
    Loc: [qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp(0)]
 PASS   : tst_ExtendedCompare::checkComparisonWithTimeout(EQ)
 PASS   : tst_ExtendedCompare::checkComparisonWithTimeout(NE)
-FAIL!  : tst_ExtendedCompare::checkComparisonWithTimeout(LT) Left value is expected to be less than right value, but is not
-   Left   (c)                         : ClassWithDeferredSetter(1)
-   Right  (ClassWithDeferredSetter(0)): ClassWithDeferredSetter(0)
+FAIL!  : tst_ExtendedCompare::checkComparisonWithTimeout(LT) The computed value is expected to be less than the baseline, but is not
+   Computed (c)                         : ClassWithDeferredSetter(1)
+   Baseline (ClassWithDeferredSetter(0)): ClassWithDeferredSetter(0)
    Loc: [qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp(0)]
-FAIL!  : tst_ExtendedCompare::checkComparisonWithTimeout(LE) Left value is expected to be less than or equal to right value, but is not
-   Left   (c)                          : ClassWithDeferredSetter(1)
-   Right  (ClassWithDeferredSetter(-1)): ClassWithDeferredSetter(-1)
+FAIL!  : tst_ExtendedCompare::checkComparisonWithTimeout(LE) The computed value is expected to be less than or equal to the baseline, but is not
+   Computed (c)                          : ClassWithDeferredSetter(1)
+   Baseline (ClassWithDeferredSetter(-1)): ClassWithDeferredSetter(-1)
    Loc: [qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp(0)]
-FAIL!  : tst_ExtendedCompare::checkComparisonWithTimeout(GT) Left value is expected to be greater than right value, but is not
-   Left   (c)                         : ClassWithDeferredSetter(1)
-   Right  (ClassWithDeferredSetter(1)): ClassWithDeferredSetter(1)
+FAIL!  : tst_ExtendedCompare::checkComparisonWithTimeout(GT) The computed value is expected to be greater than the baseline, but is not
+   Computed (c)                         : ClassWithDeferredSetter(1)
+   Baseline (ClassWithDeferredSetter(1)): ClassWithDeferredSetter(1)
    Loc: [qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp(0)]
 PASS   : tst_ExtendedCompare::checkComparisonWithTimeout(GE)
 PASS   : tst_ExtendedCompare::cleanupTestCase()
diff --git a/tests/auto/testlib/selftests/expected_extendedcompare.xml b/tests/auto/testlib/selftests/expected_extendedcompare.xml
index 7bfca23b..ab55eebf 100644
--- a/tests/auto/testlib/selftests/expected_extendedcompare.xml
+++ b/tests/auto/testlib/selftests/expected_extendedcompare.xml
@@ -15,21 +15,21 @@
     </Incident>
     <Incident type="fail" file="qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp" line="0">
       <DataTag><![CDATA[EQ:left < right]]></DataTag>
-      <Description><![CDATA[Left value is expected to be equal to right value, but is not
-   Left   (lhs): 1
-   Right  (rhs): 2]]></Description>
+      <Description><![CDATA[The computed value is expected to be equal to the baseline, but is not
+   Computed (lhs): 1
+   Baseline (rhs): 2]]></Description>
     </Incident>
     <Incident type="fail" file="qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp" line="0">
       <DataTag><![CDATA[EQ:left > right]]></DataTag>
-      <Description><![CDATA[Left value is expected to be equal to right value, but is not
-   Left   (lhs): 2
-   Right  (rhs): 1]]></Description>
+      <Description><![CDATA[The computed value is expected to be equal to the baseline, but is not
+   Computed (lhs): 2
+   Baseline (rhs): 1]]></Description>
     </Incident>
     <Incident type="fail" file="qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp" line="0">
       <DataTag><![CDATA[NE:left == right]]></DataTag>
-      <Description><![CDATA[Left value is expected to be different from right value, but is not
-   Left   (lhs): 1
-   Right  (rhs): 1]]></Description>
+      <Description><![CDATA[The computed value is expected to be different from the baseline, but is not
+   Computed (lhs): 1
+   Baseline (rhs): 1]]></Description>
     </Incident>
     <Incident type="pass" file="" line="0">
       <DataTag><![CDATA[NE:left < right]]></DataTag>
@@ -39,18 +39,18 @@
     </Incident>
     <Incident type="fail" file="qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp" line="0">
       <DataTag><![CDATA[LT:left == right]]></DataTag>
-      <Description><![CDATA[Left value is expected to be less than right value, but is not
-   Left   (lhs): 1
-   Right  (rhs): 1]]></Description>
+      <Description><![CDATA[The computed value is expected to be less than the baseline, but is not
+   Computed (lhs): 1
+   Baseline (rhs): 1]]></Description>
     </Incident>
     <Incident type="pass" file="" line="0">
       <DataTag><![CDATA[LT:left < right]]></DataTag>
     </Incident>
     <Incident type="fail" file="qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp" line="0">
       <DataTag><![CDATA[LT:left > right]]></DataTag>
-      <Description><![CDATA[Left value is expected to be less than right value, but is not
-   Left   (lhs): 2
-   Right  (rhs): 1]]></Description>
+      <Description><![CDATA[The computed value is expected to be less than the baseline, but is not
+   Computed (lhs): 2
+   Baseline (rhs): 1]]></Description>
     </Incident>
     <Incident type="pass" file="" line="0">
       <DataTag><![CDATA[LE:left == right]]></DataTag>
@@ -60,21 +60,21 @@
     </Incident>
     <Incident type="fail" file="qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp" line="0">
       <DataTag><![CDATA[LE:left > right]]></DataTag>
-      <Description><![CDATA[Left value is expected to be less than or equal to right value, but is not
-   Left   (lhs): 2
-   Right  (rhs): 1]]></Description>
+      <Description><![CDATA[The computed value is expected to be less than or equal to the baseline, but is not
+   Computed (lhs): 2
+   Baseline (rhs): 1]]></Description>
     </Incident>
     <Incident type="fail" file="qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp" line="0">
       <DataTag><![CDATA[GT:left == right]]></DataTag>
-      <Description><![CDATA[Left value is expected to be greater than right value, but is not
-   Left   (lhs): 1
-   Right  (rhs): 1]]></Description>
+      <Description><![CDATA[The computed value is expected to be greater than the baseline, but is not
+   Computed (lhs): 1
+   Baseline (rhs): 1]]></Description>
     </Incident>
     <Incident type="fail" file="qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp" line="0">
       <DataTag><![CDATA[GT:left < right]]></DataTag>
-      <Description><![CDATA[Left value is expected to be greater than right value, but is not
-   Left   (lhs): 1
-   Right  (rhs): 2]]></Description>
+      <Description><![CDATA[The computed value is expected to be greater than the baseline, but is not
+   Computed (lhs): 1
+   Baseline (rhs): 2]]></Description>
     </Incident>
     <Incident type="pass" file="" line="0">
       <DataTag><![CDATA[GT:left > right]]></DataTag>
@@ -84,9 +84,9 @@
     </Incident>
     <Incident type="fail" file="qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp" line="0">
       <DataTag><![CDATA[GE:left < right]]></DataTag>
-      <Description><![CDATA[Left value is expected to be greater than or equal to right value, but is not
-   Left   (lhs): 1
-   Right  (rhs): 2]]></Description>
+      <Description><![CDATA[The computed value is expected to be greater than or equal to the baseline, but is not
+   Computed (lhs): 1
+   Baseline (rhs): 2]]></Description>
     </Incident>
     <Incident type="pass" file="" line="0">
       <DataTag><![CDATA[GE:left > right]]></DataTag>
@@ -99,21 +99,21 @@
     </Incident>
     <Incident type="fail" file="qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp" line="0">
       <DataTag><![CDATA[EQ:left < right]]></DataTag>
-      <Description><![CDATA[Left value is expected to be equal to right value, but is not
-   Left   (lhs): 1
-   Right  (rhs): 1.1]]></Description>
+      <Description><![CDATA[The computed value is expected to be equal to the baseline, but is not
+   Computed (lhs): 1
+   Baseline (rhs): 1.1]]></Description>
     </Incident>
     <Incident type="fail" file="qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp" line="0">
       <DataTag><![CDATA[EQ:left > right]]></DataTag>
-      <Description><![CDATA[Left value is expected to be equal to right value, but is not
-   Left   (lhs): 1.1
-   Right  (rhs): 1]]></Description>
+      <Description><![CDATA[The computed value is expected to be equal to the baseline, but is not
+   Computed (lhs): 1.1
+   Baseline (rhs): 1]]></Description>
     </Incident>
     <Incident type="fail" file="qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp" line="0">
       <DataTag><![CDATA[NE:left == right]]></DataTag>
-      <Description><![CDATA[Left value is expected to be different from right value, but is not
-   Left   (lhs): 1
-   Right  (rhs): 1]]></Description>
+      <Description><![CDATA[The computed value is expected to be different from the baseline, but is not
+   Computed (lhs): 1
+   Baseline (rhs): 1]]></Description>
     </Incident>
     <Incident type="pass" file="" line="0">
       <DataTag><![CDATA[NE:left < right]]></DataTag>
@@ -123,18 +123,18 @@
     </Incident>
     <Incident type="fail" file="qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp" line="0">
       <DataTag><![CDATA[LT:left == right]]></DataTag>
-      <Description><![CDATA[Left value is expected to be less than right value, but is not
-   Left   (lhs): 1
-   Right  (rhs): 1]]></Description>
+      <Description><![CDATA[The computed value is expected to be less than the baseline, but is not
+   Computed (lhs): 1
+   Baseline (rhs): 1]]></Description>
     </Incident>
     <Incident type="pass" file="" line="0">
       <DataTag><![CDATA[LT:left < right]]></DataTag>
     </Incident>
     <Incident type="fail" file="qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp" line="0">
       <DataTag><![CDATA[LT:left > right]]></DataTag>
-      <Description><![CDATA[Left value is expected to be less than right value, but is not
-   Left   (lhs): 1.1
-   Right  (rhs): 1]]></Description>
+      <Description><![CDATA[The computed value is expected to be less than the baseline, but is not
+   Computed (lhs): 1.1
+   Baseline (rhs): 1]]></Description>
     </Incident>
     <Incident type="pass" file="" line="0">
       <DataTag><![CDATA[LE:left == right]]></DataTag>
@@ -144,21 +144,21 @@
     </Incident>
     <Incident type="fail" file="qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp" line="0">
       <DataTag><![CDATA[LE:left > right]]></DataTag>
-      <Description><![CDATA[Left value is expected to be less than or equal to right value, but is not
-   Left   (lhs): 1.1
-   Right  (rhs): 1]]></Description>
+      <Description><![CDATA[The computed value is expected to be less than or equal to the baseline, but is not
+   Computed (lhs): 1.1
+   Baseline (rhs): 1]]></Description>
     </Incident>
     <Incident type="fail" file="qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp" line="0">
       <DataTag><![CDATA[GT:left == right]]></DataTag>
-      <Description><![CDATA[Left value is expected to be greater than right value, but is not
-   Left   (lhs): 1
-   Right  (rhs): 1]]></Description>
+      <Description><![CDATA[The computed value is expected to be greater than the baseline, but is not
+   Computed (lhs): 1
+   Baseline (rhs): 1]]></Description>
     </Incident>
     <Incident type="fail" file="qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp" line="0">
       <DataTag><![CDATA[GT:left < right]]></DataTag>
-      <Description><![CDATA[Left value is expected to be greater than right value, but is not
-   Left   (lhs): 1
-   Right  (rhs): 1.1]]></Description>
+      <Description><![CDATA[The computed value is expected to be greater than the baseline, but is not
+   Computed (lhs): 1
+   Baseline (rhs): 1.1]]></Description>
     </Incident>
     <Incident type="pass" file="" line="0">
       <DataTag><![CDATA[GT:left > right]]></DataTag>
@@ -168,9 +168,9 @@
     </Incident>
     <Incident type="fail" file="qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp" line="0">
       <DataTag><![CDATA[GE:left < right]]></DataTag>
-      <Description><![CDATA[Left value is expected to be greater than or equal to right value, but is not
-   Left   (lhs): 1
-   Right  (rhs): 1.1]]></Description>
+      <Description><![CDATA[The computed value is expected to be greater than or equal to the baseline, but is not
+   Computed (lhs): 1
+   Baseline (rhs): 1.1]]></Description>
     </Incident>
     <Incident type="pass" file="" line="0">
       <DataTag><![CDATA[GE:left > right]]></DataTag>
@@ -183,21 +183,21 @@
     </Incident>
     <Incident type="fail" file="qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp" line="0">
       <DataTag><![CDATA[EQ:left < right]]></DataTag>
-      <Description><![CDATA[Left value is expected to be equal to right value, but is not
-   Left   (lhs): 0
-   Right  (rhs): 0.1]]></Description>
+      <Description><![CDATA[The computed value is expected to be equal to the baseline, but is not
+   Computed (lhs): 0
+   Baseline (rhs): 0.1]]></Description>
     </Incident>
     <Incident type="fail" file="qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp" line="0">
       <DataTag><![CDATA[EQ:left > right]]></DataTag>
-      <Description><![CDATA[Left value is expected to be equal to right value, but is not
-   Left   (lhs): 0.1
-   Right  (rhs): 0]]></Description>
+      <Description><![CDATA[The computed value is expected to be equal to the baseline, but is not
+   Computed (lhs): 0.1
+   Baseline (rhs): 0]]></Description>
     </Incident>
     <Incident type="fail" file="qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp" line="0">
       <DataTag><![CDATA[NE:left == right]]></DataTag>
-      <Description><![CDATA[Left value is expected to be different from right value, but is not
-   Left   (lhs): 0
-   Right  (rhs): 0]]></Description>
+      <Description><![CDATA[The computed value is expected to be different from the baseline, but is not
+   Computed (lhs): 0
+   Baseline (rhs): 0]]></Description>
     </Incident>
     <Incident type="pass" file="" line="0">
       <DataTag><![CDATA[NE:left < right]]></DataTag>
@@ -207,18 +207,18 @@
     </Incident>
     <Incident type="fail" file="qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp" line="0">
       <DataTag><![CDATA[LT:left == right]]></DataTag>
-      <Description><![CDATA[Left value is expected to be less than right value, but is not
-   Left   (lhs): 0
-   Right  (rhs): 0]]></Description>
+      <Description><![CDATA[The computed value is expected to be less than the baseline, but is not
+   Computed (lhs): 0
+   Baseline (rhs): 0]]></Description>
     </Incident>
     <Incident type="pass" file="" line="0">
       <DataTag><![CDATA[LT:left < right]]></DataTag>
     </Incident>
     <Incident type="fail" file="qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp" line="0">
       <DataTag><![CDATA[LT:left > right]]></DataTag>
-      <Description><![CDATA[Left value is expected to be less than right value, but is not
-   Left   (lhs): 0.1
-   Right  (rhs): 0]]></Description>
+      <Description><![CDATA[The computed value is expected to be less than the baseline, but is not
+   Computed (lhs): 0.1
+   Baseline (rhs): 0]]></Description>
     </Incident>
     <Incident type="pass" file="" line="0">
       <DataTag><![CDATA[LE:left == right]]></DataTag>
@@ -228,21 +228,21 @@
     </Incident>
     <Incident type="fail" file="qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp" line="0">
       <DataTag><![CDATA[LE:left > right]]></DataTag>
-      <Description><![CDATA[Left value is expected to be less than or equal to right value, but is not
-   Left   (lhs): 0.1
-   Right  (rhs): 0]]></Description>
+      <Description><![CDATA[The computed value is expected to be less than or equal to the baseline, but is not
+   Computed (lhs): 0.1
+   Baseline (rhs): 0]]></Description>
     </Incident>
     <Incident type="fail" file="qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp" line="0">
       <DataTag><![CDATA[GT:left == right]]></DataTag>
-      <Description><![CDATA[Left value is expected to be greater than right value, but is not
-   Left   (lhs): 0
-   Right  (rhs): 0]]></Description>
+      <Description><![CDATA[The computed value is expected to be greater than the baseline, but is not
+   Computed (lhs): 0
+   Baseline (rhs): 0]]></Description>
     </Incident>
     <Incident type="fail" file="qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp" line="0">
       <DataTag><![CDATA[GT:left < right]]></DataTag>
-      <Description><![CDATA[Left value is expected to be greater than right value, but is not
-   Left   (lhs): 0
-   Right  (rhs): 0.1]]></Description>
+      <Description><![CDATA[The computed value is expected to be greater than the baseline, but is not
+   Computed (lhs): 0
+   Baseline (rhs): 0.1]]></Description>
     </Incident>
     <Incident type="pass" file="" line="0">
       <DataTag><![CDATA[GT:left > right]]></DataTag>
@@ -252,9 +252,9 @@
     </Incident>
     <Incident type="fail" file="qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp" line="0">
       <DataTag><![CDATA[GE:left < right]]></DataTag>
-      <Description><![CDATA[Left value is expected to be greater than or equal to right value, but is not
-   Left   (lhs): 0
-   Right  (rhs): 0.1]]></Description>
+      <Description><![CDATA[The computed value is expected to be greater than or equal to the baseline, but is not
+   Computed (lhs): 0
+   Baseline (rhs): 0.1]]></Description>
     </Incident>
     <Incident type="pass" file="" line="0">
       <DataTag><![CDATA[GE:left > right]]></DataTag>
@@ -267,21 +267,21 @@
     </Incident>
     <Incident type="fail" file="qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp" line="0">
       <DataTag><![CDATA[EQ:left < right]]></DataTag>
-      <Description><![CDATA[Left value is expected to be equal to right value, but is not
-   Left   (lhs): 1
-   Right  (rhs): 2]]></Description>
+      <Description><![CDATA[The computed value is expected to be equal to the baseline, but is not
+   Computed (lhs): 1
+   Baseline (rhs): 2]]></Description>
     </Incident>
     <Incident type="fail" file="qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp" line="0">
       <DataTag><![CDATA[EQ:left > right]]></DataTag>
-      <Description><![CDATA[Left value is expected to be equal to right value, but is not
-   Left   (lhs): 2
-   Right  (rhs): 1]]></Description>
+      <Description><![CDATA[The computed value is expected to be equal to the baseline, but is not
+   Computed (lhs): 2
+   Baseline (rhs): 1]]></Description>
     </Incident>
     <Incident type="fail" file="qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp" line="0">
       <DataTag><![CDATA[NE:left == right]]></DataTag>
-      <Description><![CDATA[Left value is expected to be different from right value, but is not
-   Left   (lhs): 1
-   Right  (rhs): 1]]></Description>
+      <Description><![CDATA[The computed value is expected to be different from the baseline, but is not
+   Computed (lhs): 1
+   Baseline (rhs): 1]]></Description>
     </Incident>
     <Incident type="pass" file="" line="0">
       <DataTag><![CDATA[NE:left < right]]></DataTag>
@@ -291,18 +291,18 @@
     </Incident>
     <Incident type="fail" file="qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp" line="0">
       <DataTag><![CDATA[LT:left == right]]></DataTag>
-      <Description><![CDATA[Left value is expected to be less than right value, but is not
-   Left   (lhs): 1
-   Right  (rhs): 1]]></Description>
+      <Description><![CDATA[The computed value is expected to be less than the baseline, but is not
+   Computed (lhs): 1
+   Baseline (rhs): 1]]></Description>
     </Incident>
     <Incident type="pass" file="" line="0">
       <DataTag><![CDATA[LT:left < right]]></DataTag>
     </Incident>
     <Incident type="fail" file="qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp" line="0">
       <DataTag><![CDATA[LT:left > right]]></DataTag>
-      <Description><![CDATA[Left value is expected to be less than right value, but is not
-   Left   (lhs): 2
-   Right  (rhs): 1]]></Description>
+      <Description><![CDATA[The computed value is expected to be less than the baseline, but is not
+   Computed (lhs): 2
+   Baseline (rhs): 1]]></Description>
     </Incident>
     <Incident type="pass" file="" line="0">
       <DataTag><![CDATA[LE:left == right]]></DataTag>
@@ -312,21 +312,21 @@
     </Incident>
     <Incident type="fail" file="qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp" line="0">
       <DataTag><![CDATA[LE:left > right]]></DataTag>
-      <Description><![CDATA[Left value is expected to be less than or equal to right value, but is not
-   Left   (lhs): 2
-   Right  (rhs): 1]]></Description>
+      <Description><![CDATA[The computed value is expected to be less than or equal to the baseline, but is not
+   Computed (lhs): 2
+   Baseline (rhs): 1]]></Description>
     </Incident>
     <Incident type="fail" file="qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp" line="0">
       <DataTag><![CDATA[GT:left == right]]></DataTag>
-      <Description><![CDATA[Left value is expected to be greater than right value, but is not
-   Left   (lhs): 1
-   Right  (rhs): 1]]></Description>
+      <Description><![CDATA[The computed value is expected to be greater than the baseline, but is not
+   Computed (lhs): 1
+   Baseline (rhs): 1]]></Description>
     </Incident>
     <Incident type="fail" file="qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp" line="0">
       <DataTag><![CDATA[GT:left < right]]></DataTag>
-      <Description><![CDATA[Left value is expected to be greater than right value, but is not
-   Left   (lhs): 1
-   Right  (rhs): 2]]></Description>
+      <Description><![CDATA[The computed value is expected to be greater than the baseline, but is not
+   Computed (lhs): 1
+   Baseline (rhs): 2]]></Description>
     </Incident>
     <Incident type="pass" file="" line="0">
       <DataTag><![CDATA[GT:left > right]]></DataTag>
@@ -336,9 +336,9 @@
     </Incident>
     <Incident type="fail" file="qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp" line="0">
       <DataTag><![CDATA[GE:left < right]]></DataTag>
-      <Description><![CDATA[Left value is expected to be greater than or equal to right value, but is not
-   Left   (lhs): 1
-   Right  (rhs): 2]]></Description>
+      <Description><![CDATA[The computed value is expected to be greater than or equal to the baseline, but is not
+   Computed (lhs): 1
+   Baseline (rhs): 2]]></Description>
     </Incident>
     <Incident type="pass" file="" line="0">
       <DataTag><![CDATA[GE:left > right]]></DataTag>
@@ -351,21 +351,21 @@
     </Incident>
     <Incident type="fail" file="qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp" line="0">
       <DataTag><![CDATA[EQ:left < right]]></DataTag>
-      <Description><![CDATA[Left value is expected to be equal to right value, but is not
-   Left   (lhs): "nullptr"
-   Right  (rhs): 1]]></Description>
+      <Description><![CDATA[The computed value is expected to be equal to the baseline, but is not
+   Computed (lhs): "nullptr"
+   Baseline (rhs): 1]]></Description>
     </Incident>
     <Incident type="fail" file="qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp" line="0">
       <DataTag><![CDATA[EQ:left > right]]></DataTag>
-      <Description><![CDATA[Left value is expected to be equal to right value, but is not
-   Left   (lhs): 1
-   Right  (rhs): "nullptr"]]></Description>
+      <Description><![CDATA[The computed value is expected to be equal to the baseline, but is not
+   Computed (lhs): 1
+   Baseline (rhs): "nullptr"]]></Description>
     </Incident>
     <Incident type="fail" file="qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp" line="0">
       <DataTag><![CDATA[NE:left == right]]></DataTag>
-      <Description><![CDATA[Left value is expected to be different from right value, but is not
-   Left   (lhs): "nullptr"
-   Right  (rhs): "nullptr"]]></Description>
+      <Description><![CDATA[The computed value is expected to be different from the baseline, but is not
+   Computed (lhs): "nullptr"
+   Baseline (rhs): "nullptr"]]></Description>
     </Incident>
     <Incident type="pass" file="" line="0">
       <DataTag><![CDATA[NE:left < right]]></DataTag>
@@ -375,18 +375,18 @@
     </Incident>
     <Incident type="fail" file="qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp" line="0">
       <DataTag><![CDATA[LT:left == right]]></DataTag>
-      <Description><![CDATA[Left value is expected to be less than right value, but is not
-   Left   (lhs): "nullptr"
-   Right  (rhs): "nullptr"]]></Description>
+      <Description><![CDATA[The computed value is expected to be less than the baseline, but is not
+   Computed (lhs): "nullptr"
+   Baseline (rhs): "nullptr"]]></Description>
     </Incident>
     <Incident type="pass" file="" line="0">
       <DataTag><![CDATA[LT:left < right]]></DataTag>
     </Incident>
     <Incident type="fail" file="qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp" line="0">
       <DataTag><![CDATA[LT:left > right]]></DataTag>
-      <Description><![CDATA[Left value is expected to be less than right value, but is not
-   Left   (lhs): 1
-   Right  (rhs): "nullptr"]]></Description>
+      <Description><![CDATA[The computed value is expected to be less than the baseline, but is not
+   Computed (lhs): 1
+   Baseline (rhs): "nullptr"]]></Description>
     </Incident>
     <Incident type="pass" file="" line="0">
       <DataTag><![CDATA[LE:left == right]]></DataTag>
@@ -396,21 +396,21 @@
     </Incident>
     <Incident type="fail" file="qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp" line="0">
       <DataTag><![CDATA[LE:left > right]]></DataTag>
-      <Description><![CDATA[Left value is expected to be less than or equal to right value, but is not
-   Left   (lhs): 1
-   Right  (rhs): "nullptr"]]></Description>
+      <Description><![CDATA[The computed value is expected to be less than or equal to the baseline, but is not
+   Computed (lhs): 1
+   Baseline (rhs): "nullptr"]]></Description>
     </Incident>
     <Incident type="fail" file="qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp" line="0">
       <DataTag><![CDATA[GT:left == right]]></DataTag>
-      <Description><![CDATA[Left value is expected to be greater than right value, but is not
-   Left   (lhs): "nullptr"
-   Right  (rhs): "nullptr"]]></Description>
+      <Description><![CDATA[The computed value is expected to be greater than the baseline, but is not
+   Computed (lhs): "nullptr"
+   Baseline (rhs): "nullptr"]]></Description>
     </Incident>
     <Incident type="fail" file="qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp" line="0">
       <DataTag><![CDATA[GT:left < right]]></DataTag>
-      <Description><![CDATA[Left value is expected to be greater than right value, but is not
-   Left   (lhs): "nullptr"
-   Right  (rhs): 1]]></Description>
+      <Description><![CDATA[The computed value is expected to be greater than the baseline, but is not
+   Computed (lhs): "nullptr"
+   Baseline (rhs): 1]]></Description>
     </Incident>
     <Incident type="pass" file="" line="0">
       <DataTag><![CDATA[GT:left > right]]></DataTag>
@@ -420,9 +420,9 @@
     </Incident>
     <Incident type="fail" file="qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp" line="0">
       <DataTag><![CDATA[GE:left < right]]></DataTag>
-      <Description><![CDATA[Left value is expected to be greater than or equal to right value, but is not
-   Left   (lhs): "nullptr"
-   Right  (rhs): 1]]></Description>
+      <Description><![CDATA[The computed value is expected to be greater than or equal to the baseline, but is not
+   Computed (lhs): "nullptr"
+   Baseline (rhs): 1]]></Description>
     </Incident>
     <Incident type="pass" file="" line="0">
       <DataTag><![CDATA[GE:left > right]]></DataTag>
@@ -435,21 +435,21 @@
     </Incident>
     <Incident type="fail" file="qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp" line="0">
       <DataTag><![CDATA[EQ:left < right]]></DataTag>
-      <Description><![CDATA[Left value is expected to be equal to right value, but is not
-   Left   (lhs): 0
-   Right  (rhs): 1]]></Description>
+      <Description><![CDATA[The computed value is expected to be equal to the baseline, but is not
+   Computed (lhs): 0
+   Baseline (rhs): 1]]></Description>
     </Incident>
     <Incident type="fail" file="qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp" line="0">
       <DataTag><![CDATA[EQ:left > right]]></DataTag>
-      <Description><![CDATA[Left value is expected to be equal to right value, but is not
-   Left   (lhs): 1
-   Right  (rhs): 0]]></Description>
+      <Description><![CDATA[The computed value is expected to be equal to the baseline, but is not
+   Computed (lhs): 1
+   Baseline (rhs): 0]]></Description>
     </Incident>
     <Incident type="fail" file="qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp" line="0">
       <DataTag><![CDATA[NE:left == right]]></DataTag>
-      <Description><![CDATA[Left value is expected to be different from right value, but is not
-   Left   (lhs): 0
-   Right  (rhs): 0]]></Description>
+      <Description><![CDATA[The computed value is expected to be different from the baseline, but is not
+   Computed (lhs): 0
+   Baseline (rhs): 0]]></Description>
     </Incident>
     <Incident type="pass" file="" line="0">
       <DataTag><![CDATA[NE:left < right]]></DataTag>
@@ -459,18 +459,18 @@
     </Incident>
     <Incident type="fail" file="qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp" line="0">
       <DataTag><![CDATA[LT:left == right]]></DataTag>
-      <Description><![CDATA[Left value is expected to be less than right value, but is not
-   Left   (lhs): 0
-   Right  (rhs): 0]]></Description>
+      <Description><![CDATA[The computed value is expected to be less than the baseline, but is not
+   Computed (lhs): 0
+   Baseline (rhs): 0]]></Description>
     </Incident>
     <Incident type="pass" file="" line="0">
       <DataTag><![CDATA[LT:left < right]]></DataTag>
     </Incident>
     <Incident type="fail" file="qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp" line="0">
       <DataTag><![CDATA[LT:left > right]]></DataTag>
-      <Description><![CDATA[Left value is expected to be less than right value, but is not
-   Left   (lhs): 1
-   Right  (rhs): 0]]></Description>
+      <Description><![CDATA[The computed value is expected to be less than the baseline, but is not
+   Computed (lhs): 1
+   Baseline (rhs): 0]]></Description>
     </Incident>
     <Incident type="pass" file="" line="0">
       <DataTag><![CDATA[LE:left == right]]></DataTag>
@@ -480,21 +480,21 @@
     </Incident>
     <Incident type="fail" file="qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp" line="0">
       <DataTag><![CDATA[LE:left > right]]></DataTag>
-      <Description><![CDATA[Left value is expected to be less than or equal to right value, but is not
-   Left   (lhs): 1
-   Right  (rhs): 0]]></Description>
+      <Description><![CDATA[The computed value is expected to be less than or equal to the baseline, but is not
+   Computed (lhs): 1
+   Baseline (rhs): 0]]></Description>
     </Incident>
     <Incident type="fail" file="qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp" line="0">
       <DataTag><![CDATA[GT:left == right]]></DataTag>
-      <Description><![CDATA[Left value is expected to be greater than right value, but is not
-   Left   (lhs): 0
-   Right  (rhs): 0]]></Description>
+      <Description><![CDATA[The computed value is expected to be greater than the baseline, but is not
+   Computed (lhs): 0
+   Baseline (rhs): 0]]></Description>
     </Incident>
     <Incident type="fail" file="qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp" line="0">
       <DataTag><![CDATA[GT:left < right]]></DataTag>
-      <Description><![CDATA[Left value is expected to be greater than right value, but is not
-   Left   (lhs): 0
-   Right  (rhs): 1]]></Description>
+      <Description><![CDATA[The computed value is expected to be greater than the baseline, but is not
+   Computed (lhs): 0
+   Baseline (rhs): 1]]></Description>
     </Incident>
     <Incident type="pass" file="" line="0">
       <DataTag><![CDATA[GT:left > right]]></DataTag>
@@ -504,9 +504,9 @@
     </Incident>
     <Incident type="fail" file="qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp" line="0">
       <DataTag><![CDATA[GE:left < right]]></DataTag>
-      <Description><![CDATA[Left value is expected to be greater than or equal to right value, but is not
-   Left   (lhs): 0
-   Right  (rhs): 1]]></Description>
+      <Description><![CDATA[The computed value is expected to be greater than or equal to the baseline, but is not
+   Computed (lhs): 0
+   Baseline (rhs): 1]]></Description>
     </Incident>
     <Incident type="pass" file="" line="0">
       <DataTag><![CDATA[GE:left > right]]></DataTag>
@@ -519,21 +519,21 @@
     </Incident>
     <Incident type="fail" file="qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp" line="0">
       <DataTag><![CDATA[EQ:left < right]]></DataTag>
-      <Description><![CDATA[Left value is expected to be equal to right value, but is not
-   Left   (lhs): Monday
-   Right  (rhs): Sunday]]></Description>
+      <Description><![CDATA[The computed value is expected to be equal to the baseline, but is not
+   Computed (lhs): Monday
+   Baseline (rhs): Sunday]]></Description>
     </Incident>
     <Incident type="fail" file="qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp" line="0">
       <DataTag><![CDATA[EQ:left > right]]></DataTag>
-      <Description><![CDATA[Left value is expected to be equal to right value, but is not
-   Left   (lhs): Sunday
-   Right  (rhs): Monday]]></Description>
+      <Description><![CDATA[The computed value is expected to be equal to the baseline, but is not
+   Computed (lhs): Sunday
+   Baseline (rhs): Monday]]></Description>
     </Incident>
     <Incident type="fail" file="qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp" line="0">
       <DataTag><![CDATA[NE:left == right]]></DataTag>
-      <Description><![CDATA[Left value is expected to be different from right value, but is not
-   Left   (lhs): Monday
-   Right  (rhs): Monday]]></Description>
+      <Description><![CDATA[The computed value is expected to be different from the baseline, but is not
+   Computed (lhs): Monday
+   Baseline (rhs): Monday]]></Description>
     </Incident>
     <Incident type="pass" file="" line="0">
       <DataTag><![CDATA[NE:left < right]]></DataTag>
@@ -543,18 +543,18 @@
     </Incident>
     <Incident type="fail" file="qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp" line="0">
       <DataTag><![CDATA[LT:left == right]]></DataTag>
-      <Description><![CDATA[Left value is expected to be less than right value, but is not
-   Left   (lhs): Monday
-   Right  (rhs): Monday]]></Description>
+      <Description><![CDATA[The computed value is expected to be less than the baseline, but is not
+   Computed (lhs): Monday
+   Baseline (rhs): Monday]]></Description>
     </Incident>
     <Incident type="pass" file="" line="0">
       <DataTag><![CDATA[LT:left < right]]></DataTag>
     </Incident>
     <Incident type="fail" file="qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp" line="0">
       <DataTag><![CDATA[LT:left > right]]></DataTag>
-      <Description><![CDATA[Left value is expected to be less than right value, but is not
-   Left   (lhs): Sunday
-   Right  (rhs): Monday]]></Description>
+      <Description><![CDATA[The computed value is expected to be less than the baseline, but is not
+   Computed (lhs): Sunday
+   Baseline (rhs): Monday]]></Description>
     </Incident>
     <Incident type="pass" file="" line="0">
       <DataTag><![CDATA[LE:left == right]]></DataTag>
@@ -564,21 +564,21 @@
     </Incident>
     <Incident type="fail" file="qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp" line="0">
       <DataTag><![CDATA[LE:left > right]]></DataTag>
-      <Description><![CDATA[Left value is expected to be less than or equal to right value, but is not
-   Left   (lhs): Sunday
-   Right  (rhs): Monday]]></Description>
+      <Description><![CDATA[The computed value is expected to be less than or equal to the baseline, but is not
+   Computed (lhs): Sunday
+   Baseline (rhs): Monday]]></Description>
     </Incident>
     <Incident type="fail" file="qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp" line="0">
       <DataTag><![CDATA[GT:left == right]]></DataTag>
-      <Description><![CDATA[Left value is expected to be greater than right value, but is not
-   Left   (lhs): Monday
-   Right  (rhs): Monday]]></Description>
+      <Description><![CDATA[The computed value is expected to be greater than the baseline, but is not
+   Computed (lhs): Monday
+   Baseline (rhs): Monday]]></Description>
     </Incident>
     <Incident type="fail" file="qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp" line="0">
       <DataTag><![CDATA[GT:left < right]]></DataTag>
-      <Description><![CDATA[Left value is expected to be greater than right value, but is not
-   Left   (lhs): Monday
-   Right  (rhs): Sunday]]></Description>
+      <Description><![CDATA[The computed value is expected to be greater than the baseline, but is not
+   Computed (lhs): Monday
+   Baseline (rhs): Sunday]]></Description>
     </Incident>
     <Incident type="pass" file="" line="0">
       <DataTag><![CDATA[GT:left > right]]></DataTag>
@@ -588,9 +588,9 @@
     </Incident>
     <Incident type="fail" file="qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp" line="0">
       <DataTag><![CDATA[GE:left < right]]></DataTag>
-      <Description><![CDATA[Left value is expected to be greater than or equal to right value, but is not
-   Left   (lhs): Monday
-   Right  (rhs): Sunday]]></Description>
+      <Description><![CDATA[The computed value is expected to be greater than or equal to the baseline, but is not
+   Computed (lhs): Monday
+   Baseline (rhs): Sunday]]></Description>
     </Incident>
     <Incident type="pass" file="" line="0">
       <DataTag><![CDATA[GE:left > right]]></DataTag>
@@ -603,21 +603,21 @@
     </Incident>
     <Incident type="fail" file="qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp" line="0">
       <DataTag><![CDATA[EQ:left < right]]></DataTag>
-      <Description><![CDATA[Left value is expected to be equal to right value, but is not
-   Left   (lhs): MyClass(1)
-   Right  (rhs): MyClass(2)]]></Description>
+      <Description><![CDATA[The computed value is expected to be equal to the baseline, but is not
+   Computed (lhs): MyClass(1)
+   Baseline (rhs): MyClass(2)]]></Description>
     </Incident>
     <Incident type="fail" file="qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp" line="0">
       <DataTag><![CDATA[EQ:left > right]]></DataTag>
-      <Description><![CDATA[Left value is expected to be equal to right value, but is not
-   Left   (lhs): MyClass(2)
-   Right  (rhs): MyClass(1)]]></Description>
+      <Description><![CDATA[The computed value is expected to be equal to the baseline, but is not
+   Computed (lhs): MyClass(2)
+   Baseline (rhs): MyClass(1)]]></Description>
     </Incident>
     <Incident type="fail" file="qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp" line="0">
       <DataTag><![CDATA[NE:left == right]]></DataTag>
-      <Description><![CDATA[Left value is expected to be different from right value, but is not
-   Left   (lhs): MyClass(1)
-   Right  (rhs): MyClass(1)]]></Description>
+      <Description><![CDATA[The computed value is expected to be different from the baseline, but is not
+   Computed (lhs): MyClass(1)
+   Baseline (rhs): MyClass(1)]]></Description>
     </Incident>
     <Incident type="pass" file="" line="0">
       <DataTag><![CDATA[NE:left < right]]></DataTag>
@@ -627,18 +627,18 @@
     </Incident>
     <Incident type="fail" file="qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp" line="0">
       <DataTag><![CDATA[LT:left == right]]></DataTag>
-      <Description><![CDATA[Left value is expected to be less than right value, but is not
-   Left   (lhs): MyClass(1)
-   Right  (rhs): MyClass(1)]]></Description>
+      <Description><![CDATA[The computed value is expected to be less than the baseline, but is not
+   Computed (lhs): MyClass(1)
+   Baseline (rhs): MyClass(1)]]></Description>
     </Incident>
     <Incident type="pass" file="" line="0">
       <DataTag><![CDATA[LT:left < right]]></DataTag>
     </Incident>
     <Incident type="fail" file="qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp" line="0">
       <DataTag><![CDATA[LT:left > right]]></DataTag>
-      <Description><![CDATA[Left value is expected to be less than right value, but is not
-   Left   (lhs): MyClass(2)
-   Right  (rhs): MyClass(1)]]></Description>
+      <Description><![CDATA[The computed value is expected to be less than the baseline, but is not
+   Computed (lhs): MyClass(2)
+   Baseline (rhs): MyClass(1)]]></Description>
     </Incident>
     <Incident type="pass" file="" line="0">
       <DataTag><![CDATA[LE:left == right]]></DataTag>
@@ -648,21 +648,21 @@
     </Incident>
     <Incident type="fail" file="qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp" line="0">
       <DataTag><![CDATA[LE:left > right]]></DataTag>
-      <Description><![CDATA[Left value is expected to be less than or equal to right value, but is not
-   Left   (lhs): MyClass(2)
-   Right  (rhs): MyClass(1)]]></Description>
+      <Description><![CDATA[The computed value is expected to be less than or equal to the baseline, but is not
+   Computed (lhs): MyClass(2)
+   Baseline (rhs): MyClass(1)]]></Description>
     </Incident>
     <Incident type="fail" file="qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp" line="0">
       <DataTag><![CDATA[GT:left == right]]></DataTag>
-      <Description><![CDATA[Left value is expected to be greater than right value, but is not
-   Left   (lhs): MyClass(1)
-   Right  (rhs): MyClass(1)]]></Description>
+      <Description><![CDATA[The computed value is expected to be greater than the baseline, but is not
+   Computed (lhs): MyClass(1)
+   Baseline (rhs): MyClass(1)]]></Description>
     </Incident>
     <Incident type="fail" file="qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp" line="0">
       <DataTag><![CDATA[GT:left < right]]></DataTag>
-      <Description><![CDATA[Left value is expected to be greater than right value, but is not
-   Left   (lhs): MyClass(1)
-   Right  (rhs): MyClass(2)]]></Description>
+      <Description><![CDATA[The computed value is expected to be greater than the baseline, but is not
+   Computed (lhs): MyClass(1)
+   Baseline (rhs): MyClass(2)]]></Description>
     </Incident>
     <Incident type="pass" file="" line="0">
       <DataTag><![CDATA[GT:left > right]]></DataTag>
@@ -672,9 +672,9 @@
     </Incident>
     <Incident type="fail" file="qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp" line="0">
       <DataTag><![CDATA[GE:left < right]]></DataTag>
-      <Description><![CDATA[Left value is expected to be greater than or equal to right value, but is not
-   Left   (lhs): MyClass(1)
-   Right  (rhs): MyClass(2)]]></Description>
+      <Description><![CDATA[The computed value is expected to be greater than or equal to the baseline, but is not
+   Computed (lhs): MyClass(1)
+   Baseline (rhs): MyClass(2)]]></Description>
     </Incident>
     <Incident type="pass" file="" line="0">
       <DataTag><![CDATA[GE:left > right]]></DataTag>
@@ -684,9 +684,9 @@
   <TestFunction name="checkComparisonForTemporaryObjects">
     <Incident type="fail" file="qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp" line="0">
       <DataTag><![CDATA[EQ]]></DataTag>
-      <Description><![CDATA[Left value is expected to be equal to right value, but is not
-   Left   (getClassForValue(0).getValuePointer()): MyClass(2) on memory address with index 0
-   Right  (getClassForValue(1).getValuePointer()): MyClass(1) on memory address with index 1]]></Description>
+      <Description><![CDATA[The computed value is expected to be equal to the baseline, but is not
+   Computed (getClassForValue(0).getValuePointer()): MyClass(2) on memory address with index 0
+   Baseline (getClassForValue(1).getValuePointer()): MyClass(1) on memory address with index 1]]></Description>
     </Incident>
     <Incident type="pass" file="" line="0">
       <DataTag><![CDATA[NE]]></DataTag>
@@ -699,15 +699,15 @@
     </Incident>
     <Incident type="fail" file="qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp" line="0">
       <DataTag><![CDATA[GT]]></DataTag>
-      <Description><![CDATA[Left value is expected to be greater than right value, but is not
-   Left   (getClassForValue(0).getValuePointer()): MyClass(2) on memory address with index 0
-   Right  (getClassForValue(1).getValuePointer()): MyClass(1) on memory address with index 1]]></Description>
+      <Description><![CDATA[The computed value is expected to be greater than the baseline, but is not
+   Computed (getClassForValue(0).getValuePointer()): MyClass(2) on memory address with index 0
+   Baseline (getClassForValue(1).getValuePointer()): MyClass(1) on memory address with index 1]]></Description>
     </Incident>
     <Incident type="fail" file="qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp" line="0">
       <DataTag><![CDATA[GE]]></DataTag>
-      <Description><![CDATA[Left value is expected to be greater than or equal to right value, but is not
-   Left   (getClassForValue(0).getValuePointer()): MyClass(2) on memory address with index 0
-   Right  (getClassForValue(1).getValuePointer()): MyClass(1) on memory address with index 1]]></Description>
+      <Description><![CDATA[The computed value is expected to be greater than or equal to the baseline, but is not
+   Computed (getClassForValue(0).getValuePointer()): MyClass(2) on memory address with index 0
+   Baseline (getClassForValue(1).getValuePointer()): MyClass(1) on memory address with index 1]]></Description>
     </Incident>
     <Duration msecs="0"/>
   </TestFunction>
@@ -720,21 +720,21 @@
     </Incident>
     <Incident type="fail" file="qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp" line="0">
       <DataTag><![CDATA[LT]]></DataTag>
-      <Description><![CDATA[Left value is expected to be less than right value, but is not
-   Left   (c)                         : ClassWithDeferredSetter(1)
-   Right  (ClassWithDeferredSetter(0)): ClassWithDeferredSetter(0)]]></Description>
+      <Description><![CDATA[The computed value is expected to be less than the baseline, but is not
+   Computed (c)                         : ClassWithDeferredSetter(1)
+   Baseline (ClassWithDeferredSetter(0)): ClassWithDeferredSetter(0)]]></Description>
     </Incident>
     <Incident type="fail" file="qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp" line="0">
       <DataTag><![CDATA[LE]]></DataTag>
-      <Description><![CDATA[Left value is expected to be less than or equal to right value, but is not
-   Left   (c)                          : ClassWithDeferredSetter(1)
-   Right  (ClassWithDeferredSetter(-1)): ClassWithDeferredSetter(-1)]]></Description>
+      <Description><![CDATA[The computed value is expected to be less than or equal to the baseline, but is not
+   Computed (c)                          : ClassWithDeferredSetter(1)
+   Baseline (ClassWithDeferredSetter(-1)): ClassWithDeferredSetter(-1)]]></Description>
     </Incident>
     <Incident type="fail" file="qtbase/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp" line="0">
       <DataTag><![CDATA[GT]]></DataTag>
-      <Description><![CDATA[Left value is expected to be greater than right value, but is not
-   Left   (c)                         : ClassWithDeferredSetter(1)
-   Right  (ClassWithDeferredSetter(1)): ClassWithDeferredSetter(1)]]></Description>
+      <Description><![CDATA[The computed value is expected to be greater than the baseline, but is not
+   Computed (c)                         : ClassWithDeferredSetter(1)
+   Baseline (ClassWithDeferredSetter(1)): ClassWithDeferredSetter(1)]]></Description>
     </Incident>
     <Incident type="pass" file="" line="0">
       <DataTag><![CDATA[GE]]></DataTag>
diff --git a/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp b/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp
index d198d621..b6eb5c87 100644
--- a/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp
+++ b/tests/auto/testlib/selftests/extendedcompare/tst_extendedcompare.cpp
@@ -161,107 +161,115 @@ void tst_ExtendedCompare::initTestCase_data()
     QTest::newRow("GE") << QTest::ComparisonOperation::GreaterThanOrEqual;
 }
 
-#define GENERATE_DATA_FOR_TYPE(Type, val1, val2) \
-do { \
-    Q_ASSERT(val1 < val2); \
-    QTest::addColumn<Type>("lhs"); \
-    QTest::addColumn<Type>("rhs"); \
-    QTest::newRow("left == right") << val1 << val1; \
-    QTest::newRow("left < right") << val1 << val2; \
-    QTest::newRow("left > right") << val2 << val1; \
-} while (false)
+template <typename T> static void generateData(T val1, T val2)
+{
+    Q_ASSERT(val1 < val2);
+    QTest::addColumn<T>("lhs");
+    QTest::addColumn<T>("rhs");
+    QTest::newRow("left == right") << val1 << val1;
+    QTest::newRow("left < right") << val1 << val2;
+    QTest::newRow("left > right") << val2 << val1;
+}
 
-#define EXECUTE_COMPARISON_FOR_TYPE(Type) \
-do { \
-    QFETCH_GLOBAL(QTest::ComparisonOperation, operation); \
-    QFETCH(Type, lhs); \
-    QFETCH(Type, rhs); \
-    COMPARE_WITH_TYPE(operation, lhs, rhs); \
-} while (false)
+template <typename T> static void executeComparison()
+{
+    QFETCH_GLOBAL(QTest::ComparisonOperation, operation);
+    QFETCH(T, lhs);
+    QFETCH(T, rhs);
+    switch (operation) {
+    case QTest::ComparisonOperation::CustomCompare:      QCOMPARE(lhs, rhs); break;
+    case QTest::ComparisonOperation::Equal:              QCOMPARE_EQ(lhs, rhs); break;
+    case QTest::ComparisonOperation::NotEqual:           QCOMPARE_NE(lhs, rhs); break;
+    case QTest::ComparisonOperation::LessThan:           QCOMPARE_LT(lhs, rhs); break;
+    case QTest::ComparisonOperation::LessThanOrEqual:    QCOMPARE_LE(lhs, rhs); break;
+    case QTest::ComparisonOperation::GreaterThan:        QCOMPARE_GT(lhs, rhs); break;
+    case QTest::ComparisonOperation::GreaterThanOrEqual: QCOMPARE_GE(lhs, rhs); break;
+    }
+}
 
 void tst_ExtendedCompare::compareInts_data()
 {
-    GENERATE_DATA_FOR_TYPE(int, 1, 2);
+    generateData(1, 2);
 }
 
 void tst_ExtendedCompare::compareInts()
 {
-    EXECUTE_COMPARISON_FOR_TYPE(int);
+    executeComparison<int>();
 }
 
 void tst_ExtendedCompare::compareFloats_data()
 {
-    GENERATE_DATA_FOR_TYPE(float, 1.0f, 1.1f);
+    generateData(1.0f, 1.1f);
 }
 
 void tst_ExtendedCompare::compareFloats()
 {
-    EXECUTE_COMPARISON_FOR_TYPE(float);
+    executeComparison<float>();
 }
 
 void tst_ExtendedCompare::compareDoubles_data()
 {
-    GENERATE_DATA_FOR_TYPE(double, 0.0, 0.1);
+    generateData(0.0, 0.1);
 }
 
 void tst_ExtendedCompare::compareDoubles()
 {
-    EXECUTE_COMPARISON_FOR_TYPE(double);
+    executeComparison<double>();
 }
 
 void tst_ExtendedCompare::comparePointers_data()
 {
     static constexpr int values[] = { 1, 2 };
-    GENERATE_DATA_FOR_TYPE(const int *, &values[0], &values[1]);
+    generateData(&values[0], &values[1]);
 }
 
 void tst_ExtendedCompare::comparePointers()
 {
-    EXECUTE_COMPARISON_FOR_TYPE(const int *);
+    executeComparison<const int *>();
 }
 
 void tst_ExtendedCompare::compareToNullptr_data()
 {
     static const int *ptr = nullptr;
     static const int value = 1;
-    GENERATE_DATA_FOR_TYPE(const int *, ptr, &value);
+    generateData(ptr, &value);
 }
 
 void tst_ExtendedCompare::compareToNullptr()
 {
-    EXECUTE_COMPARISON_FOR_TYPE(const int *);
+    executeComparison<const int *>();
 }
 
 void tst_ExtendedCompare::compareUnregistereEnum_data()
 {
-    GENERATE_DATA_FOR_TYPE(MyUnregisteredEnum, MyUnregisteredEnumValue1, MyUnregisteredEnumValue2);
+    generateData(MyUnregisteredEnumValue1, MyUnregisteredEnumValue2);
 }
 
 void tst_ExtendedCompare::compareUnregistereEnum()
 {
-    EXECUTE_COMPARISON_FOR_TYPE(MyUnregisteredEnum);
+    executeComparison<MyUnregisteredEnum>();
 }
 
 void tst_ExtendedCompare::compareRegistereEnum_data()
 {
-    GENERATE_DATA_FOR_TYPE(Qt::DayOfWeek, Qt::Monday, Qt::Sunday);
+    generateData(Qt::Monday, Qt::Sunday);
 }
 
 void tst_ExtendedCompare::compareRegistereEnum()
 {
-    EXECUTE_COMPARISON_FOR_TYPE(Qt::DayOfWeek);
+    executeComparison<Qt::DayOfWeek>();
 }
 
 void tst_ExtendedCompare::compareCustomTypes_data()
 {
     static const MyClass val1(1);
     static const MyClass val2(2);
-    GENERATE_DATA_FOR_TYPE(MyClass, val1, val2);
+    generateData(val1, val2);
 }
 
 void tst_ExtendedCompare::compareCustomTypes()
 {
-    EXECUTE_COMPARISON_FOR_TYPE(MyClass);
+    executeComparison<MyClass>();
 }
 
 void tst_ExtendedCompare::checkComparisonForTemporaryObjects()
diff --git a/tests/auto/testlib/selftests/findtestdata/findtestdata.cpp b/tests/auto/testlib/selftests/findtestdata/findtestdata.cpp
index f4a9d20f..8e48c030 100644
--- a/tests/auto/testlib/selftests/findtestdata/findtestdata.cpp
+++ b/tests/auto/testlib/selftests/findtestdata/findtestdata.cpp
@@ -26,7 +26,7 @@ void FindTestData::initTestCase()
     // verify that our qt.conf is working as expected.
     QString app_path = QCoreApplication::applicationDirPath();
     QString install_path = app_path
-#ifdef Q_OS_MAC
+#ifdef Q_OS_DARWIN
         + "/Contents"
 #endif
         + "/tests";
@@ -75,7 +75,7 @@ void FindTestData::paths()
 
     // 2. at the test install path (faked via qt.conf)
     QString testfile_path2 = app_path
-#ifdef Q_OS_MAC
+#ifdef Q_OS_DARWIN
         + "/Contents"
 #endif
         + "/tests/findtestdata/" TESTFILE;
diff --git a/tests/auto/testlib/selftests/sleep/CMakeLists.txt b/tests/auto/testlib/selftests/sleep/CMakeLists.txt
index c7d04abc..dcd6ab69 100644
--- a/tests/auto/testlib/selftests/sleep/CMakeLists.txt
+++ b/tests/auto/testlib/selftests/sleep/CMakeLists.txt
@@ -12,6 +12,7 @@ qt_internal_add_executable(sleep
         tst_sleep.cpp
     LIBRARIES
         Qt::Test
+        Qt::CorePrivate
 )
 
 ## Scopes:
diff --git a/tests/auto/testlib/selftests/sleep/tst_sleep.cpp b/tests/auto/testlib/selftests/sleep/tst_sleep.cpp
index ebefbf44..c259b2e4 100644
--- a/tests/auto/testlib/selftests/sleep/tst_sleep.cpp
+++ b/tests/auto/testlib/selftests/sleep/tst_sleep.cpp
@@ -6,6 +6,15 @@
 #include <QtCore/QElapsedTimer>
 #include <QTest>
 
+#ifdef Q_OS_UNIX
+#include <QtCore/private/qcore_unix_p.h>
+#include <QtCore/qsystemdetection.h>
+
+#include <time.h>
+#endif
+
+using namespace std::chrono_literals;
+
 class tst_Sleep: public QObject
 {
     Q_OBJECT
@@ -21,13 +30,13 @@ void tst_Sleep::sleep()
     t.start();
 
     QTest::qSleep(100);
-    QVERIFY(t.elapsed() > 90);
+    QCOMPARE_GE(t.durationElapsed(), 90ms);
 
     QTest::qSleep(1000);
-    QVERIFY(t.elapsed() > 1000);
+    QCOMPARE_GE(t.durationElapsed(), 1s);
 
     QTest::qSleep(1000 * 10); // 10 seconds
-    QVERIFY(t.elapsed() > 1000 * 10);
+    QCOMPARE_GE(t.durationElapsed(), 10s);
 }
 
 void tst_Sleep::wait()
@@ -35,17 +44,18 @@ void tst_Sleep::wait()
     QElapsedTimer t;
     t.start();
 
+    t.start();
     QTest::qWait(1);
-    QVERIFY(t.elapsed() >= 1);
+    QCOMPARE_GE(t.durationElapsed(), 1ms);
 
     QTest::qWait(10);
-    QVERIFY(t.elapsed() >= 11);
+    QCOMPARE_GE(t.durationElapsed(), 11ms);
 
     QTest::qWait(100);
-    QVERIFY(t.elapsed() >= 111);
+    QCOMPARE_GE(t.durationElapsed(), 111ms);
 
     QTest::qWait(1000);
-    QVERIFY(t.elapsed() >= 1111);
+    QCOMPARE_GE(t.durationElapsed(), 1111ms);
 }
 
 QTEST_MAIN(tst_Sleep)
diff --git a/tests/auto/testlib/selftests/tst_selftests.cpp b/tests/auto/testlib/selftests/tst_selftests.cpp
index 5ff1304e..b3ecb244 100644
--- a/tests/auto/testlib/selftests/tst_selftests.cpp
+++ b/tests/auto/testlib/selftests/tst_selftests.cpp
@@ -783,15 +783,10 @@ void checkErrorOutput(const QString &test, const QByteArray &errorOutput)
 #endif
 
 #ifdef Q_OS_LINUX
-    // QEMU outputs to stderr about uncaught signals
-    if (QTestPrivate::isRunningArmOnX86() &&
-        (test == "assert"
-         || test == "crashes"
-         || test == "faildatatype"
-         || test == "failfetchtype"
-         || test == "silent"
-        ))
-        return;
+    if (test == "silent") {
+        if (QTestPrivate::isRunningArmOnX86())
+            return;         // QEMU outputs to stderr about uncaught signals
+    }
 #endif
 
     INFO(errorOutput.toStdString());
diff --git a/tests/auto/testlib/selftests/verbose1/CMakeLists.txt b/tests/auto/testlib/selftests/verbose1/CMakeLists.txt
index 872f28dd..6c0f066c 100644
--- a/tests/auto/testlib/selftests/verbose1/CMakeLists.txt
+++ b/tests/auto/testlib/selftests/verbose1/CMakeLists.txt
@@ -11,7 +11,7 @@ qt_internal_add_executable(verbose1
     SOURCES
         ../counting/tst_counting.cpp
     DEFINES
-        TESTLIB_VERBOSITY_ARG=-v1 # special case remove quotes
+        TESTLIB_VERBOSITY_ARG=-v1
     LIBRARIES
         Qt::Test
 )
diff --git a/tests/auto/testlib/selftests/verbose2/CMakeLists.txt b/tests/auto/testlib/selftests/verbose2/CMakeLists.txt
index 56ec4536..24428159 100644
--- a/tests/auto/testlib/selftests/verbose2/CMakeLists.txt
+++ b/tests/auto/testlib/selftests/verbose2/CMakeLists.txt
@@ -11,7 +11,7 @@ qt_internal_add_executable(verbose2
     SOURCES
         ../counting/tst_counting.cpp
     DEFINES
-        TESTLIB_VERBOSITY_ARG=-v2 # special case remove quotes
+        TESTLIB_VERBOSITY_ARG=-v2
     LIBRARIES
         Qt::Test
 )
diff --git a/tests/auto/testlib/tostring/CMakeLists.txt b/tests/auto/testlib/tostring/CMakeLists.txt
new file mode 100644
index 00000000..57fc65d3
--- /dev/null
+++ b/tests/auto/testlib/tostring/CMakeLists.txt
@@ -0,0 +1,7 @@
+# Copyright (C) 2023 Intel Corporation.
+# SPDX-License-Identifier: BSD-3-Clause
+
+qt_internal_add_test(tst_tostring
+    SOURCES
+        tst_tostring.cpp
+)
diff --git a/tests/auto/testlib/tostring/tst_tostring.cpp b/tests/auto/testlib/tostring/tst_tostring.cpp
new file mode 100644
index 00000000..3f12e0c7
--- /dev/null
+++ b/tests/auto/testlib/tostring/tst_tostring.cpp
@@ -0,0 +1,150 @@
+// Copyright (C) 2023 Intel Corporation.
+// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only WITH Qt-GPL-exception-1.0
+
+#include <QTest>
+#include <memory>
+
+#include <q20chrono.h>
+
+using ToStringFunction = std::function<char *()>;
+class tst_toString : public QObject
+{
+    Q_OBJECT
+private:
+    void addColumns();
+    void testRows();
+private slots:
+    void chrono_duration_data();
+    void chrono_duration() { testRows(); }
+};
+
+void tst_toString::addColumns()
+{
+    QTest::addColumn<ToStringFunction>("fn");
+    QTest::addColumn<QByteArrayView>("expected");
+    QTest::addColumn<QByteArrayView>("expr");
+    QTest::addColumn<QByteArrayView>("file");
+    QTest::addColumn<int>("line");
+}
+void tst_toString::testRows()
+{
+    QFETCH(ToStringFunction, fn);
+    QFETCH(QByteArrayView, expected);
+    QFETCH(QByteArrayView, expr);
+    QFETCH(QByteArrayView, file);
+    QFETCH(int, line);
+
+    std::unique_ptr<char []> ptr{fn()};
+    QTest::qCompare(ptr.get(), expected, expr.data(), expected.data(), file.data(), line);
+}
+
+template <typename T> void addRow(QByteArrayView name, T &&value, QByteArrayView expression,
+                                  QByteArrayView expected, QByteArrayView file, int line)
+{
+    ToStringFunction fn = [v = std::move(value)]() { return QTest::toString(v); };
+    QTest::newRow(name.data()) << fn << expected << expression << file << line;
+}
+
+#define ADD_ROW(name, expr, expected)         \
+    ::addRow(name, expr, #expr, expected, __FILE__, __LINE__)
+
+void tst_toString::chrono_duration_data()
+{
+    addColumns();
+
+    using namespace std::chrono;
+    using namespace q20::chrono;
+
+    using attoseconds = duration<int64_t, std::atto>;
+    using femtoseconds = duration<int64_t, std::femto>;
+    using picoseconds = duration<int64_t, std::pico>;
+    using centiseconds = duration<int64_t, std::centi>;
+    using deciseconds = duration<int64_t, std::deci>;
+    using kiloseconds = duration<int64_t, std::kilo>;
+    using decades = duration<int, std::ratio_multiply<years::period, std::deca>>; // decayears
+    using centuries = duration<int16_t, std::ratio_multiply<years::period, std::hecto>>; // hectoyears
+    using millennia = duration<int16_t, std::ratio_multiply<years::period, std::kilo>>; // kiloyears
+    using gigayears = duration<int8_t, std::ratio_multiply<years::period, std::giga>>;
+    using fortnights = duration<int, std::ratio_multiply<days::period, std::ratio<14>>>;
+    using microfortnights = duration<int64_t, std::ratio_multiply<fortnights::period, std::micro>>;
+    using meter_per_light = duration<int64_t, std::ratio<1, 299'792'458>>;
+    using kilometer_per_light = duration<int64_t, std::ratio<1000, 299'792'458>>;
+    using AU_per_light = duration<int64_t, std::ratio<149'597'871'800, 299'792'458>>;
+    using pstn_rate = duration<int64_t, std::ratio<1, 8000>>; // PSTN sampling rate (8 kHz)
+    using hyperfine = duration<int64_t, std::ratio<1, 9'192'631'770>>;  // definition of second
+
+    ADD_ROW("1as", attoseconds{1}, "1as (1e-18s)");   // from Norwegian "atten" (18)
+    ADD_ROW("1fs", femtoseconds{1}, "1fs (1e-15s)");  // from Norwegian "femten" (15)
+    ADD_ROW("1ps", picoseconds{1}, "1ps (1e-12s)");   // from Italian piccolo?
+    ADD_ROW("0ns", 0ns, "0ns (0s)");
+    ADD_ROW("1000ns", 1000ns, "1000ns (1e-06s)");
+    ADD_ROW("1us", 1us, "1us (1e-06s)");
+    ADD_ROW("125us", 125us, "125us (0.000125s)");
+    ADD_ROW("0ms", 0ms, "0ms (0s)");
+    ADD_ROW("-1s", -1s, "-1s");
+    ADD_ROW("0s", 0s, "0s");
+    ADD_ROW("1cs", centiseconds{1}, "1cs (0.01s)");
+    ADD_ROW("2ds", deciseconds{2}, "2ds (0.2s)");
+    ADD_ROW("1s", 1s, "1s");
+    ADD_ROW("60s", 60s, "60s");
+    ADD_ROW("1min", 1min, "1min (60s)");
+    ADD_ROW("1h", 1h, "1h (3600s)");
+    ADD_ROW("1days", days{1}, "1d (86400s)");
+    ADD_ROW("7days", days{7}, "7d (604800s)");
+    ADD_ROW("1weeks", weeks{1}, "1wk (604800s)");
+    ADD_ROW("365days", days{365}, "365d (31536000s)");
+    ADD_ROW("1years", years{1}, "1yr (31556952s)"); // 365.2425 days
+
+    ADD_ROW("2ks", kiloseconds{2}, "2[1000]s (2000s)");
+    ADD_ROW("1fortnights", fortnights{1}, "1[2]wk (1209600s)");
+    ADD_ROW("1decades", decades{1}, "1[10]yr (315569520s)");
+    ADD_ROW("1centuries", centuries{1}, "1[100]yr (3.1556952e+09s)");
+    ADD_ROW("1millennia", millennia{1}, "1[1000]yr (3.1556952e+10s)");
+#if defined(Q_OS_LINUX) || defined(Q_OS_DARWIN)
+    // some OSes print the exponent differently
+    ADD_ROW("13gigayears", gigayears{13}, "13[1e+09]yr (4.10240376e+17s)");
+#endif
+
+    // months are one twelfth of a Gregorian year, not 30 days
+    ADD_ROW("1months", months{1}, "1[2629746]s (2629746s)");
+    ADD_ROW("12months", months{12}, "12[2629746]s (31556952s)");
+
+    // weird units
+    ADD_ROW("2microfortnights", microfortnights{2}, "2[756/625]s (2.4192s)");
+    ADD_ROW("1pstn_rate", pstn_rate{1}, "1[1/8000]s (0.000125s)");   // 125µs
+    ADD_ROW("10m/c", meter_per_light{10}, "10[1/299792458]s (3.33564095e-08s)");
+    ADD_ROW("10km/c", kilometer_per_light{10}, "10[500/149896229]s (3.33564095e-05s)");
+    ADD_ROW("1AU/c", AU_per_light{1}, "1[74798935900/149896229]s (499.004788s)");
+    ADD_ROW("Cs133-hyperfine", hyperfine{1}, "1[1/9192631770]s (1.08782776e-10s)");
+    ADD_ROW("1sec-definition", hyperfine{9'192'631'770}, "9192631770[1/9192631770]s (1s)");
+    ADD_ROW("8000pstn_rate", pstn_rate{8000}, "8000[1/8000]s (1s)");
+
+    // real floting point
+    // current (2023) best estimate is 13.813 ± 0.038 billion years (Plank Collaboration)
+    using universe = duration<double, std::ratio_multiply<std::ratio<13'813'000'000>, years::period>>;
+    using fpksec = duration<double, std::kilo>;
+    using fpsec = duration<double>;
+    using fpmsec = duration<double, std::milli>;
+    using fpnsec = duration<double, std::nano>;
+    using fpGyr = duration<double, std::ratio_multiply<years::period, std::giga>>;
+
+    ADD_ROW("1.0s", fpsec{1}, "1s");
+    ADD_ROW("1.5s", fpsec{1.5}, "1.5s");
+    ADD_ROW("-1.0ms", fpmsec{-1}, "-1ms (-0.001s)");
+    ADD_ROW("1.5ms", fpmsec{1.5}, "1.5ms (0.0015s)");
+    ADD_ROW("1.0ns", fpnsec{1}, "1ns (1e-09s)");
+    ADD_ROW("-1.5ns", fpnsec{-1.5}, "-1.5ns (-1.5e-09s)");
+    ADD_ROW("1.0ks", fpksec{1}, "1[1000]s (1000s)");
+    ADD_ROW("-1.5ks", fpksec{-1.5}, "-1.5[1000]s (-1500s)");
+    ADD_ROW("1.0zs", fpsec{1e-21}, "1e-21s");  // zeptosecond
+    ADD_ROW("1.0ys", fpsec{1e-24}, "1e-24s");  // yoctosecond
+    ADD_ROW("planck-time", fpsec(5.39124760e-44), "5.3912476e-44s");
+#if defined(Q_OS_LINUX) || defined(Q_OS_DARWIN)
+    // some OSes print the exponent differently
+    ADD_ROW("13.813Gyr", fpGyr(13.813), "13.813[1e+09]yr (4.35896178e+17s)");
+    ADD_ROW("1universe", universe{1}, "1[1.3813e+10]yr (4.35896178e+17s)");
+#endif
+}
+
+QTEST_APPLESS_MAIN(tst_toString)
+#include "tst_tostring.moc"
diff --git a/tests/auto/tools/CMakeLists.txt b/tests/auto/tools/CMakeLists.txt
index ce22b168..ffeb228c 100644
--- a/tests/auto/tools/CMakeLists.txt
+++ b/tests/auto/tools/CMakeLists.txt
@@ -9,6 +9,7 @@ if(NOT ANDROID AND NOT IOS)
     endif()
     add_subdirectory(moc)
     add_subdirectory(rcc)
+    add_subdirectory(qt_cmake_create)
 endif()
 # QTBUG-88538
 if(TARGET Qt::Widgets AND NOT ANDROID AND NOT IOS)
diff --git a/tests/auto/tools/moc/allmocs_baseline_in.json b/tests/auto/tools/moc/allmocs_baseline_in.json
index 46f643d0..50dbb200 100644
--- a/tests/auto/tools/moc/allmocs_baseline_in.json
+++ b/tests/auto/tools/moc/allmocs_baseline_in.json
@@ -91,6 +91,7 @@
                         "isClass": false,
                         "isFlag": false,
                         "name": "TypedEnum",
+                        "type": "char",
                         "values": [
                             "B0",
                             "B1",
@@ -102,6 +103,7 @@
                         "isClass": true,
                         "isFlag": false,
                         "name": "TypedEnumClass",
+                        "type": "char",
                         "values": [
                             "C0",
                             "C1",
@@ -147,6 +149,7 @@
                         "isClass": true,
                         "isFlag": false,
                         "name": "TypedEnumStruct",
+                        "type": "char",
                         "values": [
                             "H0",
                             "H1",
@@ -188,6 +191,7 @@
                         "isClass": false,
                         "isFlag": false,
                         "name": "TypedEnum",
+                        "type": "char",
                         "values": [
                             "B0",
                             "B1",
@@ -199,6 +203,7 @@
                         "isClass": true,
                         "isFlag": false,
                         "name": "TypedEnumClass",
+                        "type": "char",
                         "values": [
                             "C0",
                             "C1",
@@ -232,6 +237,65 @@
                 ],
                 "gadget": true,
                 "qualifiedClassName": "CXX11Enums2"
+            },
+            {
+                "className": "CXX11Enums3",
+                "enums": [
+                    {
+                        "isClass": true,
+                        "isFlag": false,
+                        "name": "EnumClass",
+                        "values": [
+                            "A0",
+                            "A1",
+                            "A2",
+                            "A3"
+                        ]
+                    },
+                    {
+                        "isClass": false,
+                        "isFlag": false,
+                        "name": "TypedEnum",
+                        "type": "char",
+                        "values": [
+                            "B0",
+                            "B1",
+                            "B2",
+                            "B3"
+                        ]
+                    },
+                    {
+                        "isClass": true,
+                        "isFlag": false,
+                        "name": "TypedEnumClass",
+                        "type": "char",
+                        "values": [
+                            "C0",
+                            "C1",
+                            "C2",
+                            "C3"
+                        ]
+                    },
+                    {
+                        "isClass": false,
+                        "isFlag": false,
+                        "name": "NormalEnum",
+                        "values": [
+                            "D2",
+                            "D3",
+                            "D0",
+                            "D1"
+                        ]
+                    }
+                ],
+                "object": true,
+                "qualifiedClassName": "CXX11Enums3",
+                "superClasses": [
+                    {
+                        "access": "public",
+                        "name": "QObject"
+                    }
+                ]
             }
         ],
         "inputFile": "cxx11-enums.h",
diff --git a/tests/auto/tools/moc/backslash-newlines.h b/tests/auto/tools/moc/backslash-newlines.h
index 899cb5d2..63ab00f8 100644
--- a/tests/auto/tools/moc/backslash-newlines.h
+++ b/tests/auto/tools/moc/backslash-newlines.h
@@ -30,6 +30,7 @@ public slots:
 
 QT_WARNING_PUSH
 QT_WARNING_DISABLE_CLANG("-Wcomment")
+QT_WARNING_DISABLE_GCC("-Wcomment")
 
 // ends with \\\r should not make moc crash (QTBUG-53441) (no new lines on purpose!!) \
 
diff --git a/tests/auto/tools/moc/cxx11-enums.h b/tests/auto/tools/moc/cxx11-enums.h
index cd82a5df..821cd038 100644
--- a/tests/auto/tools/moc/cxx11-enums.h
+++ b/tests/auto/tools/moc/cxx11-enums.h
@@ -47,4 +47,20 @@ public:
     Q_FLAGS(ClassFlags)
 };
 
+class CXX11Enums3 : public QObject
+{
+    Q_OBJECT
+public:
+    enum class EnumClass { A0, A1, A2, A3 };
+    enum TypedEnum : char { B0, B1 , B2, B3 };
+    enum class TypedEnumClass : char { C0, C1, C2, C3 };
+    enum NormalEnum { D2 = 2, D3, D0 =0 , D1 };
+    enum class ClassFlag { F0 = 1, F1 = 2, F2 = 4, F3 = 8 };
+
+    Q_ENUM(EnumClass)
+    Q_ENUM(TypedEnum)
+    Q_ENUM(TypedEnumClass)
+    Q_ENUM(NormalEnum)
+};
+
 #endif // CXX11_ENUMS_H
diff --git a/tests/auto/tools/moc/tst_moc.cpp b/tests/auto/tools/moc/tst_moc.cpp
index ea65e40e..0cd33288 100644
--- a/tests/auto/tools/moc/tst_moc.cpp
+++ b/tests/auto/tools/moc/tst_moc.cpp
@@ -11,6 +11,8 @@
 #include <qversionnumber.h>
 #include <qregularexpression.h>
 
+#include <private/qobject_p.h>
+
 #include "using-namespaces.h"
 #include "assign-namespace.h"
 #include "no-keywords.h"
@@ -111,6 +113,12 @@ public:
         Key2
     };
     Q_ENUM(TestGEnum2)
+
+    enum TestGEnum3: quint8 {
+        Key1 = 23,
+        Key2
+    };
+    Q_ENUM(TestGEnum3)
 };
 
 }
@@ -129,6 +137,12 @@ namespace TestQNamespace {
     };
     Q_ENUM_NS(TestEnum2)
 
+    enum TestEnum3: qint8 {
+        Key1 = 23,
+        Key2
+    };
+    Q_ENUM_NS(TestEnum3)
+
     // try to dizzy moc by adding a struct in between
     struct TestGadget {
         Q_GADGET
@@ -141,8 +155,13 @@ namespace TestQNamespace {
             Key1 = 23,
             Key2
         };
+        enum TestGEnum3: qint16 {
+            Key1 = 33,
+            Key2
+        };
         Q_ENUM(TestGEnum1)
         Q_ENUM(TestGEnum2)
+        Q_ENUM(TestGEnum3)
     };
 
     struct TestGadgetExport {
@@ -159,6 +178,12 @@ namespace TestQNamespace {
             Key2
         };
         Q_ENUM(TestGeEnum2)
+        enum TestGeEnum3: quint16 {
+            Key1 = 26,
+            Key2
+        };
+        Q_ENUM(TestGeEnum3)
+
     };
 
     enum class TestFlag1 {
@@ -178,6 +203,27 @@ namespace TestQNamespace {
     Q_FLAG_NS(TestFlag2)
 }
 
+namespace TestSameEnumNamespace {
+    Q_NAMESPACE
+
+    enum class TestSameEnumNamespace {
+        Key1 = 1,
+        Key2 = 2,
+    };
+    Q_ENUM_NS(TestSameEnumNamespace)
+}
+
+namespace TestNestedSameEnumNamespace {
+namespace a {
+    Q_NAMESPACE
+    // enum class with the same name as the enclosing nested namespace
+    enum class a {
+        Key11 = 11,
+        Key12 = 12,
+    };
+    Q_ENUM_NS(a)
+}
+}
 
 namespace TestExportNamespace {
     Q_NAMESPACE_EXPORT(TESTEXPORTMACRO)
@@ -724,6 +770,7 @@ private slots:
     void templateGtGt();
     void qprivateslots();
     void qprivateproperties();
+    void anonymousProperties();
     void warnOnPropertyWithoutREAD();
     void constructors();
     void typenameWithUnsigned();
@@ -768,6 +815,7 @@ private slots:
     void optionsFileError_data();
     void optionsFileError();
     void testQNamespace();
+    void testNestedQNamespace();
     void cxx17Namespaces();
     void cxxAttributes();
     void mocJsonOutput();
@@ -778,6 +826,7 @@ private slots:
     void setQPRopertyBinding();
     void privateQPropertyShim();
     void readWriteThroughBindable();
+    void invokableCtors();
     void virtualInlineTaggedSlot();
 
 signals:
@@ -1662,6 +1711,54 @@ void tst_Moc::qprivateproperties()
     QVERIFY(zapBindable.isBindable());
 }
 
+
+class AnonymousPropertyTest1 : public QObject
+{
+    Q_OBJECT
+    QT_ANONYMOUS_PROPERTY(int READ foo WRITE setFoo)
+public:
+    int foo() { return mFoo ; }
+    void setFoo(int value) { mFoo = value; }
+
+private:
+    int mFoo = 0;
+};
+
+class AnonymousPropertyTest2 : public QObject
+{
+    Q_OBJECT
+    QT_ANONYMOUS_PRIVATE_PROPERTY(d, int READ bar WRITE setBar)
+
+    class MyDPointer {
+    public:
+        int bar() { return mBar ; }
+        void setBar(int value) { mBar = value; }
+    private:
+        int mBar = 0;
+    };
+
+public:
+    AnonymousPropertyTest2(QObject *parent = nullptr) : QObject(parent), d (new MyDPointer) {}
+    MyDPointer *d_func() {return d.data();}
+    const MyDPointer *d_func() const {return d.data();}
+
+private:
+    QScopedPointer<MyDPointer> d;
+};
+
+void tst_Moc::anonymousProperties()
+{
+    AnonymousPropertyTest1 test1;
+
+    test1.setProperty("", 17);
+    QCOMPARE(test1.property(""), QVariant::fromValue(17));
+
+    AnonymousPropertyTest2 test2;
+
+    test2.setProperty("", 27);
+    QCOMPARE(test2.property(""), QVariant::fromValue(27));
+}
+
 void tst_Moc::warnOnPropertyWithoutREAD()
 {
 #ifdef MOC_CROSS_COMPILED
@@ -2128,7 +2225,7 @@ void tst_Moc::warnings_data()
         << QStringList()
         << 0
         << QString()
-        << QString("standard input:0:1: note: No relevant classes found. No output generated.");
+        << QString("standard input: note: No relevant classes found. No output generated.");
 
     // passing "-nn" should suppress "no relevant classes" note
     QTest::newRow("-nn")
@@ -2270,7 +2367,7 @@ void tst_Moc::warnings_data()
         << QStringList()
         << 1
         << QString("IGNORE_ALL_STDOUT")
-        << QString(":-1:1: error: Unexpected character in macro argument list.");
+        << QString(": error: Unexpected character in macro argument list.");
 
     QTest::newRow("Missing header warning")
         << QByteArray("class X : public QObject { Q_OBJECT };")
@@ -2404,23 +2501,29 @@ void tst_Moc::cxx11Enums_data()
     QTest::addColumn<QByteArray>("enumName");
     QTest::addColumn<char>("prefix");
     QTest::addColumn<bool>("isScoped");
+    QTest::addColumn<bool>("isTyped");
 
     const QMetaObject *meta1 = &CXX11Enums::staticMetaObject;
     const QMetaObject *meta2 = &CXX11Enums2::staticMetaObject;
+    const QMetaObject *meta3 = &CXX11Enums3::staticMetaObject;
 
-    QTest::newRow("EnumClass") << meta1 << QByteArray("EnumClass") << QByteArray("EnumClass") << 'A' << true;
-    QTest::newRow("EnumClass 2") << meta2 << QByteArray("EnumClass") << QByteArray("EnumClass") << 'A' << true;
-    QTest::newRow("TypedEnum") << meta1 << QByteArray("TypedEnum") << QByteArray("TypedEnum") << 'B' << false;
-    QTest::newRow("TypedEnum 2") << meta2 << QByteArray("TypedEnum") << QByteArray("TypedEnum") << 'B' << false;
-    QTest::newRow("TypedEnumClass") << meta1 << QByteArray("TypedEnumClass") << QByteArray("TypedEnumClass") << 'C' << true;
-    QTest::newRow("TypedEnumClass 2") << meta2 << QByteArray("TypedEnumClass") << QByteArray("TypedEnumClass") << 'C' << true;
-    QTest::newRow("NormalEnum") << meta1 << QByteArray("NormalEnum") << QByteArray("NormalEnum") << 'D' << false;
-    QTest::newRow("NormalEnum 2") << meta2 << QByteArray("NormalEnum") << QByteArray("NormalEnum") << 'D' << false;
-    QTest::newRow("ClassFlags") << meta1 << QByteArray("ClassFlags") << QByteArray("ClassFlag") << 'F' << true;
-    QTest::newRow("ClassFlags 2") << meta2 << QByteArray("ClassFlags") << QByteArray("ClassFlag") << 'F' << true;
-    QTest::newRow("EnumStruct") << meta1 << QByteArray("EnumStruct") << QByteArray("EnumStruct") << 'G' << true;
-    QTest::newRow("TypedEnumStruct") << meta1 << QByteArray("TypedEnumStruct") << QByteArray("TypedEnumStruct") << 'H' << true;
-    QTest::newRow("StructFlags") << meta1 << QByteArray("StructFlags") << QByteArray("StructFlag") << 'I' << true;
+    QTest::newRow("EnumClass") << meta1 << QByteArray("EnumClass") << QByteArray("EnumClass") << 'A' << true << false;
+    QTest::newRow("EnumClass 2") << meta2 << QByteArray("EnumClass") << QByteArray("EnumClass") << 'A' << true << false;
+    QTest::newRow("EnumClass 3") << meta3 << QByteArray("EnumClass") << QByteArray("EnumClass") << 'A' << true << false;
+    QTest::newRow("TypedEnum") << meta1 << QByteArray("TypedEnum") << QByteArray("TypedEnum") << 'B' << false << true;
+    QTest::newRow("TypedEnum 2") << meta2 << QByteArray("TypedEnum") << QByteArray("TypedEnum") << 'B' << false << true;
+    QTest::newRow("TypedEnum 3") << meta3 << QByteArray("TypedEnum") << QByteArray("TypedEnum") << 'B' << false << true;
+    QTest::newRow("TypedEnumClass") << meta1 << QByteArray("TypedEnumClass") << QByteArray("TypedEnumClass") << 'C' << true << true;
+    QTest::newRow("TypedEnumClass 2") << meta2 << QByteArray("TypedEnumClass") << QByteArray("TypedEnumClass") << 'C' << true << true;
+    QTest::newRow("TypedEnumClass 3") << meta3 << QByteArray("TypedEnumClass") << QByteArray("TypedEnumClass") << 'C' << true << true;
+    QTest::newRow("NormalEnum") << meta1 << QByteArray("NormalEnum") << QByteArray("NormalEnum") << 'D' << false << false;
+    QTest::newRow("NormalEnum 2") << meta2 << QByteArray("NormalEnum") << QByteArray("NormalEnum") << 'D' << false << false;
+    QTest::newRow("NormalEnum 3") << meta3 << QByteArray("NormalEnum") << QByteArray("NormalEnum") << 'D' << false << false;
+    QTest::newRow("ClassFlags") << meta1 << QByteArray("ClassFlags") << QByteArray("ClassFlag") << 'F' << true << false;
+    QTest::newRow("ClassFlags 2") << meta2 << QByteArray("ClassFlags") << QByteArray("ClassFlag") << 'F' << true << false;
+    QTest::newRow("EnumStruct") << meta1 << QByteArray("EnumStruct") << QByteArray("EnumStruct") << 'G' << true << false;
+    QTest::newRow("TypedEnumStruct") << meta1 << QByteArray("TypedEnumStruct") << QByteArray("TypedEnumStruct") << 'H' << true << true;
+    QTest::newRow("StructFlags") << meta1 << QByteArray("StructFlags") << QByteArray("StructFlag") << 'I' << true << false;
 }
 
 void tst_Moc::cxx11Enums()
@@ -2432,24 +2535,39 @@ void tst_Moc::cxx11Enums()
     QFETCH(QByteArray, enumName);
     QFETCH(char, prefix);
     QFETCH(bool, isScoped);
+    QFETCH(bool, isTyped);
 
     int idx = meta->indexOfEnumerator(typeName);
     QVERIFY(idx != -1);
     QCOMPARE(meta->indexOfEnumerator(enumName), idx);
 
-    QCOMPARE(meta->enumerator(idx).enclosingMetaObject(), meta);
-    QCOMPARE(meta->enumerator(idx).isValid(), true);
-    QCOMPARE(meta->enumerator(idx).keyCount(), 4);
-    QCOMPARE(meta->enumerator(idx).name(), typeName.constData());
-    QCOMPARE(meta->enumerator(idx).enumName(), enumName.constData());
-    bool isFlag = meta->enumerator(idx).isFlag();
+    const QMetaEnum metaEnum = meta->enumerator(idx);
+    QCOMPARE(metaEnum.enclosingMetaObject(), meta);
+    QCOMPARE(metaEnum.isValid(), true);
+    QCOMPARE(metaEnum.keyCount(), 4);
+    QCOMPARE(metaEnum.name(), typeName.constData());
+    QCOMPARE(metaEnum.enumName(), enumName.constData());
+
+    const QMetaType metaType = metaEnum.metaType();
+    const bool isUnsigned = metaType.flags() & QMetaType::IsUnsignedEnumeration;
+    if (isTyped) {
+        QCOMPARE(size_t(metaType.sizeOf()), sizeof(char));
+        QCOMPARE(isUnsigned, !std::is_signed_v<char>);
+    } else if (isScoped) {
+        QCOMPARE(size_t(metaType.sizeOf()), sizeof(int));
+        QCOMPARE(isUnsigned, !std::is_signed_v<int>);
+    } else {
+        // underlying type is implementation defined
+    }
+
+    bool isFlag = metaEnum.isFlag();
     for (int i = 0; i < 4; i++) {
         QByteArray v = prefix + QByteArray::number(i);
         const int value = isFlag ? (1 << i) : i;
-        QCOMPARE(meta->enumerator(idx).keyToValue(v), value);
-        QCOMPARE(meta->enumerator(idx).valueToKey(value), v.constData());
+        QCOMPARE(metaEnum.keyToValue(v), value);
+        QCOMPARE(metaEnum.valueToKey(value), v.constData());
     }
-    QCOMPARE(meta->enumerator(idx).isScoped(), isScoped);
+    QCOMPARE(metaEnum.isScoped(), isScoped);
 }
 
 void tst_Moc::cxx11TrailingReturn()
@@ -3970,10 +4088,12 @@ void tst_Moc::optionsFileError()
 }
 
 static void checkEnum(const QMetaEnum &enumerator, const QByteArray &name,
-                      const QList<QPair<QByteArray, int>> &keys)
+                      const QList<QPair<QByteArray, int>> &keys,
+                      const QMetaType underlyingType = QMetaType::fromType<int>())
 {
     QCOMPARE(name, QByteArray{enumerator.name()});
     QCOMPARE(keys.size(), enumerator.keyCount());
+    QCOMPARE(underlyingType, enumerator.metaType().underlyingType());
     for (int i = 0; i < enumerator.keyCount(); ++i) {
         QCOMPARE(keys[i].first, QByteArray{enumerator.key(i)});
         QCOMPARE(keys[i].second, enumerator.value(i));
@@ -3988,29 +4108,57 @@ public:
     FooNamespace::Enum1 prop() { return FooNamespace::Enum1::Key2; }
 };
 
+void tst_Moc::testNestedQNamespace()
+{
+    QCOMPARE(TestSameEnumNamespace::staticMetaObject.enumeratorCount(), 1);
+    checkEnum(TestSameEnumNamespace::staticMetaObject.enumerator(0), "TestSameEnumNamespace",
+                {{"Key1", 1}, {"Key2", 2}});
+    QMetaEnum meta1 = QMetaEnum::fromType<TestSameEnumNamespace::TestSameEnumNamespace>();
+    QVERIFY(meta1.isValid());
+    QCOMPARE(meta1.name(), "TestSameEnumNamespace");
+    QCOMPARE(meta1.enclosingMetaObject(), &TestSameEnumNamespace::staticMetaObject);
+    QCOMPARE(meta1.keyCount(), 2);
+
+    // QTBUG-112996
+    QCOMPARE(TestNestedSameEnumNamespace::a::staticMetaObject.enumeratorCount(), 1);
+    checkEnum(TestNestedSameEnumNamespace::a::staticMetaObject.enumerator(0), "a",
+              {{"Key11", 11}, {"Key12", 12}});
+    QMetaEnum meta2 = QMetaEnum::fromType<TestNestedSameEnumNamespace::a::a>();
+    QVERIFY(meta2.isValid());
+    QCOMPARE(meta2.name(), "a");
+    QCOMPARE(meta2.enclosingMetaObject(), &TestNestedSameEnumNamespace::a::staticMetaObject);
+    QCOMPARE(meta2.keyCount(), 2);
+}
+
 void tst_Moc::testQNamespace()
 {
-    QCOMPARE(TestQNamespace::staticMetaObject.enumeratorCount(), 4);
+    QCOMPARE(TestQNamespace::staticMetaObject.enumeratorCount(), 5);
     checkEnum(TestQNamespace::staticMetaObject.enumerator(0), "TestEnum1",
                 {{"Key1", 11}, {"Key2", 12}});
     checkEnum(TestQNamespace::staticMetaObject.enumerator(1), "TestEnum2",
                 {{"Key1", 17}, {"Key2", 18}});
-    checkEnum(TestQNamespace::staticMetaObject.enumerator(2), "TestFlag1",
+    checkEnum(TestQNamespace::staticMetaObject.enumerator(2), "TestEnum3",
+                {{"Key1", 23}, {"Key2", 24}}, QMetaType::fromType<qint8>());
+    checkEnum(TestQNamespace::staticMetaObject.enumerator(3), "TestFlag1",
                 {{"None", 0}, {"Flag1", 1}, {"Flag2", 2}, {"Any", 1 | 2}});
-    checkEnum(TestQNamespace::staticMetaObject.enumerator(3), "TestFlag2",
+    checkEnum(TestQNamespace::staticMetaObject.enumerator(4), "TestFlag2",
                 {{"None", 0}, {"Flag1", 4}, {"Flag2", 8}, {"Any", 4 | 8}});
 
-    QCOMPARE(TestQNamespace::TestGadget::staticMetaObject.enumeratorCount(), 2);
+    QCOMPARE(TestQNamespace::TestGadget::staticMetaObject.enumeratorCount(), 3);
     checkEnum(TestQNamespace::TestGadget::staticMetaObject.enumerator(0), "TestGEnum1",
                 {{"Key1", 13}, {"Key2", 14}});
     checkEnum(TestQNamespace::TestGadget::staticMetaObject.enumerator(1), "TestGEnum2",
                 {{"Key1", 23}, {"Key2", 24}});
+    checkEnum(TestQNamespace::TestGadget::staticMetaObject.enumerator(2), "TestGEnum3",
+                {{"Key1", 33}, {"Key2", 34}}, QMetaType::fromType<qint16>());
 
-    QCOMPARE(TestQNamespace::TestGadgetExport::staticMetaObject.enumeratorCount(), 2);
+    QCOMPARE(TestQNamespace::TestGadgetExport::staticMetaObject.enumeratorCount(), 3);
     checkEnum(TestQNamespace::TestGadgetExport::staticMetaObject.enumerator(0), "TestGeEnum1",
                 {{"Key1", 20}, {"Key2", 21}});
     checkEnum(TestQNamespace::TestGadgetExport::staticMetaObject.enumerator(1), "TestGeEnum2",
                 {{"Key1", 23}, {"Key2", 24}});
+    checkEnum(TestQNamespace::TestGadgetExport::staticMetaObject.enumerator(2), "TestGeEnum3",
+                {{"Key1", 26}, {"Key2", 27}}, QMetaType::fromType<quint16>());
 
     QMetaEnum meta = QMetaEnum::fromType<TestQNamespace::TestEnum1>();
     QVERIFY(meta.isValid());
@@ -4454,6 +4602,42 @@ void tst_Moc::readWriteThroughBindable()
     }
 }
 
+struct WithInvokableCtor
+{
+    Q_GADGET
+    Q_PROPERTY(int thing MEMBER m_thing CONSTANT FINAL)
+public:
+    WithInvokableCtor() = default;
+    Q_INVOKABLE WithInvokableCtor(int theThing) : m_thing(theThing) {}
+
+    int m_thing = 10;
+};
+
+void tst_Moc::invokableCtors()
+{
+    const QMetaType metaType = QMetaType::fromType<WithInvokableCtor>();
+    Q_ASSERT(metaType.sizeOf() > 0);
+    const QMetaObject *metaObject = metaType.metaObject();
+    QVERIFY(metaObject);
+
+    QCOMPARE(metaObject->constructorCount(), 1);
+    WithInvokableCtor *result = nullptr;
+    const auto guard = qScopeGuard([&]() { delete result; });
+    int argument = 17;
+    void *a[] = { &result, &argument };
+    metaObject->static_metacall(QMetaObject::CreateInstance, 0, a);
+    QVERIFY(result);
+    QCOMPARE(result->m_thing, 17);
+
+    // Call dtor so that we're left with "uninitialized" memory.
+    WithInvokableCtor result2;
+    result2.~WithInvokableCtor();
+
+    void *b[] = { &result2, &argument };
+    metaObject->static_metacall(QMetaObject::ConstructInPlace, 0, b);
+    QCOMPARE(result2.m_thing, 17);
+}
+
 void tst_Moc::virtualInlineTaggedSlot()
 {
     auto mo = TagTest::staticMetaObject;
diff --git a/tests/auto/tools/qdbusxml2cpp/tst_qdbusxml2cpp.cpp b/tests/auto/tools/qdbusxml2cpp/tst_qdbusxml2cpp.cpp
index 1dde9131..cb07181c 100644
--- a/tests/auto/tools/qdbusxml2cpp/tst_qdbusxml2cpp.cpp
+++ b/tests/auto/tools/qdbusxml2cpp/tst_qdbusxml2cpp.cpp
@@ -246,7 +246,7 @@ void tst_qdbusxml2cpp::process_data()
                "</method>"
             << QRegularExpression("Q_SLOTS:.*Q_DECL_DEPRECATED inline QDBusPendingReply<> Method\\(\\)",
                                   QRegularExpression::DotMatchesEverythingOption)
-            << QRegularExpression("Q_SLOTS:.*void Method\\(\\)",
+            << QRegularExpression("Q_SLOTS:.*\n\\s*void Method\\(\\)",  // no Q_DECL_DEPRECATED
                                   QRegularExpression::DotMatchesEverythingOption);
 
     QTest::newRow("method-deprecated-2out")
@@ -258,7 +258,7 @@ void tst_qdbusxml2cpp::process_data()
             << QRegularExpression("Q_SLOTS:.*Q_DECL_DEPRECATED inline QDBusPendingReply<QString, QString> Method\\(\\)"
                                   ".*Q_DECL_DEPRECATED inline QDBusReply<QString> Method\\(QString &\\w*\\)",
                                   QRegularExpression::DotMatchesEverythingOption)
-            << QRegularExpression("Q_SLOTS:.*QString Method\\(QString &",
+            << QRegularExpression("Q_SLOTS:.*\n\\s*QString Method\\(QString &", // no Q_DECL_DEPRECATED
                                   QRegularExpression::DotMatchesEverythingOption);
 
     QTest::newRow("method-noreply")
@@ -308,7 +308,7 @@ void tst_qdbusxml2cpp::process_data()
                   </signal>)"
             << QRegularExpression(R"(Q_SIGNALS:.*\bQ_DECL_DEPRECATED void Signal\(\))",
                                   QRegularExpression::DotMatchesEverythingOption)
-            << QRegularExpression(R"(Q_SIGNALS:.*\bvoid Signal\(\))",
+            << QRegularExpression(R"(Q_SIGNALS:.*\n\s*void Signal\(\))",    // no Q_DECL_DEPRECATED
                                   QRegularExpression::DotMatchesEverythingOption);
 }
 
diff --git a/tests/auto/tools/qt_cmake_create/CMakeLists.txt b/tests/auto/tools/qt_cmake_create/CMakeLists.txt
new file mode 100644
index 00000000..66114713
--- /dev/null
+++ b/tests/auto/tools/qt_cmake_create/CMakeLists.txt
@@ -0,0 +1,14 @@
+# Copyright (C) 2023 The Qt Company Ltd.
+# SPDX-License-Identifier: BSD-3-Clause
+
+# Collect test data
+file(GLOB_RECURSE test_data_glob
+    RELATIVE ${CMAKE_CURRENT_SOURCE_DIR}
+    testdata/*)
+list(APPEND test_data ${test_data_glob})
+
+qt_internal_add_test(tst_qt_cmake_create
+    SOURCES
+        tst_qt_cmake_create.cpp
+    TESTDATA ${test_data}
+)
diff --git a/tests/auto/tools/qt_cmake_create/testdata/cpp_project/CMakeLists.txt.expected b/tests/auto/tools/qt_cmake_create/testdata/cpp_project/CMakeLists.txt.expected
new file mode 100644
index 00000000..7e646b72
--- /dev/null
+++ b/tests/auto/tools/qt_cmake_create/testdata/cpp_project/CMakeLists.txt.expected
@@ -0,0 +1,14 @@
+cmake_minimum_required(VERSION 3.16)
+project(cpp_project LANGUAGES CXX)
+
+find_package(Qt6 REQUIRED COMPONENTS Core)
+qt_standard_project_setup()
+
+qt_add_executable(cpp_project
+    main.cpp
+)
+
+target_link_libraries(cpp_project
+    PRIVATE
+        Qt::Core
+)
diff --git a/tests/auto/tools/qt_cmake_create/testdata/cpp_project/main.cpp b/tests/auto/tools/qt_cmake_create/testdata/cpp_project/main.cpp
new file mode 100644
index 00000000..ae659d5e
--- /dev/null
+++ b/tests/auto/tools/qt_cmake_create/testdata/cpp_project/main.cpp
@@ -0,0 +1,7 @@
+#include <iostream>
+
+int main(int, char *[])
+{
+    std::cout << "Now I have CMakeLists.txt. Thanks!" << std::endl;
+    return 0;
+}
diff --git a/tests/auto/tools/qt_cmake_create/testdata/proto_project/CMakeLists.txt.expected b/tests/auto/tools/qt_cmake_create/testdata/proto_project/CMakeLists.txt.expected
new file mode 100644
index 00000000..1b9ae912
--- /dev/null
+++ b/tests/auto/tools/qt_cmake_create/testdata/proto_project/CMakeLists.txt.expected
@@ -0,0 +1,17 @@
+cmake_minimum_required(VERSION 3.16)
+project(proto_project LANGUAGES CXX)
+
+find_package(Qt6 REQUIRED COMPONENTS Protobuf Grpc)
+qt_standard_project_setup()
+
+qt_add_protobuf(proto_project
+    GENERATE_PACKAGE_SUBFOLDERS
+    PROTO_FILES
+        test.proto
+)
+
+target_link_libraries(proto_project
+    PRIVATE
+        Qt::Protobuf
+        Qt::Grpc
+)
diff --git a/tests/auto/tools/qt_cmake_create/testdata/proto_project/test.proto b/tests/auto/tools/qt_cmake_create/testdata/proto_project/test.proto
new file mode 100644
index 00000000..e03a5c08
--- /dev/null
+++ b/tests/auto/tools/qt_cmake_create/testdata/proto_project/test.proto
@@ -0,0 +1,5 @@
+syntax = "proto3";
+
+package test;
+message Noop {
+}
diff --git a/tests/auto/tools/qt_cmake_create/testdata/qml_project/CMakeLists.txt.expected b/tests/auto/tools/qt_cmake_create/testdata/qml_project/CMakeLists.txt.expected
new file mode 100644
index 00000000..1187b0e5
--- /dev/null
+++ b/tests/auto/tools/qt_cmake_create/testdata/qml_project/CMakeLists.txt.expected
@@ -0,0 +1,27 @@
+cmake_minimum_required(VERSION 3.16)
+project(qml_project LANGUAGES CXX)
+
+find_package(Qt6 REQUIRED COMPONENTS Gui Qml Quick Core)
+qt_standard_project_setup()
+
+qt_add_executable(qml_project
+    main.cpp
+)
+
+qt_add_qml_module(qml_project
+    URI qml_project
+    OUTPUT_DIRECTORY qml
+    VERSION 1.0
+    RESOURCE_PREFIX /qt/qml
+    QML_FILES
+        TestComponent.qml
+        main.qml
+)
+
+target_link_libraries(qml_project
+    PRIVATE
+        Qt::Gui
+        Qt::Qml
+        Qt::Quick
+        Qt::Core
+)
diff --git a/tests/auto/tools/qt_cmake_create/testdata/qml_project/TestComponent.qml b/tests/auto/tools/qt_cmake_create/testdata/qml_project/TestComponent.qml
new file mode 100644
index 00000000..f97cbcf1
--- /dev/null
+++ b/tests/auto/tools/qt_cmake_create/testdata/qml_project/TestComponent.qml
@@ -0,0 +1,4 @@
+import QtQuick
+
+Item {
+}
diff --git a/tests/auto/tools/qt_cmake_create/testdata/qml_project/main.cpp b/tests/auto/tools/qt_cmake_create/testdata/qml_project/main.cpp
new file mode 100644
index 00000000..13c7014d
--- /dev/null
+++ b/tests/auto/tools/qt_cmake_create/testdata/qml_project/main.cpp
@@ -0,0 +1,18 @@
+#include <QGuiApplication>
+#include <QQmlApplicationEngine>
+
+int main(int argc, char *argv[])
+{
+    QGuiApplication app(argc, argv);
+
+    QQmlApplicationEngine engine;
+    const QUrl url(QStringLiteral("qrc:/qt/qml/qml_project/main.qml"));
+    QObject::connect(&engine, &QQmlApplicationEngine::objectCreated,
+                     &app, [url](QObject *obj, const QUrl &objUrl) {
+        if (!obj && url == objUrl)
+            QCoreApplication::exit(-1);
+    }, Qt::QueuedConnection);
+    engine.load(url);
+
+    return app.exec();
+}
diff --git a/tests/auto/tools/qt_cmake_create/testdata/qml_project/main.qml b/tests/auto/tools/qt_cmake_create/testdata/qml_project/main.qml
new file mode 100644
index 00000000..b42c9e78
--- /dev/null
+++ b/tests/auto/tools/qt_cmake_create/testdata/qml_project/main.qml
@@ -0,0 +1,16 @@
+import QtQuick
+import QtQuick.Window
+
+Window {
+    width: 640
+    height: 480
+    visible: true
+    title: "Hello World"
+    Text {
+        anchors.centerIn: parent
+        font.pointSize: 16
+        text: "Now I have CMakeLists.txt. Thanks!"
+    }
+    TestComponent {
+    }
+}
diff --git a/tests/auto/tools/qt_cmake_create/testdata/qrc_project/CMakeLists.txt.expected b/tests/auto/tools/qt_cmake_create/testdata/qrc_project/CMakeLists.txt.expected
new file mode 100644
index 00000000..8a595ac3
--- /dev/null
+++ b/tests/auto/tools/qt_cmake_create/testdata/qrc_project/CMakeLists.txt.expected
@@ -0,0 +1,20 @@
+cmake_minimum_required(VERSION 3.16)
+project(qrc_project LANGUAGES CXX)
+
+find_package(Qt6 REQUIRED COMPONENTS Core)
+qt_standard_project_setup()
+
+qt_add_executable(qrc_project
+    main.cpp
+)
+
+qt_add_resources(qrc_project_resources test.qrc)
+target_sources(qrc_project
+    PRIVATE
+        ${qrc_project_resources}
+)
+
+target_link_libraries(qrc_project
+    PRIVATE
+        Qt::Core
+)
diff --git a/tests/auto/tools/qt_cmake_create/testdata/qrc_project/main.cpp b/tests/auto/tools/qt_cmake_create/testdata/qrc_project/main.cpp
new file mode 100644
index 00000000..cd8ed8f5
--- /dev/null
+++ b/tests/auto/tools/qt_cmake_create/testdata/qrc_project/main.cpp
@@ -0,0 +1,13 @@
+#include <QFile>
+#include <QDebug>
+
+int main(int, char **)
+{
+    QFile file(":/test.txt");
+    if (!file.open(QFile::ReadOnly))
+        return 1;
+
+    QString data = QString::fromUtf8(file.readAll());
+    qDebug() << data;
+    return 0;
+}
diff --git a/tests/auto/tools/qt_cmake_create/testdata/qrc_project/test.qrc b/tests/auto/tools/qt_cmake_create/testdata/qrc_project/test.qrc
new file mode 100644
index 00000000..adfe37b5
--- /dev/null
+++ b/tests/auto/tools/qt_cmake_create/testdata/qrc_project/test.qrc
@@ -0,0 +1,5 @@
+<RCC>
+    <qresource prefix="/">
+        <file>test.txt</file>
+    </qresource>
+</RCC>
diff --git a/tests/auto/tools/qt_cmake_create/testdata/qrc_project/test.txt b/tests/auto/tools/qt_cmake_create/testdata/qrc_project/test.txt
new file mode 100644
index 00000000..6c5b215e
--- /dev/null
+++ b/tests/auto/tools/qt_cmake_create/testdata/qrc_project/test.txt
@@ -0,0 +1 @@
+Now I have CMakeLists.txt. Thanks!
diff --git a/tests/auto/tools/qt_cmake_create/testdata/ui_only_project/widget.ui b/tests/auto/tools/qt_cmake_create/testdata/ui_only_project/widget.ui
new file mode 100644
index 00000000..d2c4f620
--- /dev/null
+++ b/tests/auto/tools/qt_cmake_create/testdata/ui_only_project/widget.ui
@@ -0,0 +1,32 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<ui version="4.0">
+ <class>Widget</class>
+ <widget class="QWidget" name="Widget">
+  <property name="geometry">
+   <rect>
+    <x>0</x>
+    <y>0</y>
+    <width>800</width>
+    <height>600</height>
+   </rect>
+  </property>
+  <property name="windowTitle">
+   <string>Widget</string>
+  </property>
+  <widget class="QLabel" name="label">
+   <property name="geometry">
+    <rect>
+     <x>10</x>
+     <y>6</y>
+     <width>781</width>
+     <height>581</height>
+    </rect>
+   </property>
+   <property name="text">
+    <string>Now I have CMakeLists.txt. Thanks!</string>
+   </property>
+  </widget>
+ </widget>
+ <resources/>
+ <connections/>
+</ui>
diff --git a/tests/auto/tools/qt_cmake_create/testdata/ui_project/CMakeLists.txt.expected b/tests/auto/tools/qt_cmake_create/testdata/ui_project/CMakeLists.txt.expected
new file mode 100644
index 00000000..6252b713
--- /dev/null
+++ b/tests/auto/tools/qt_cmake_create/testdata/ui_project/CMakeLists.txt.expected
@@ -0,0 +1,23 @@
+cmake_minimum_required(VERSION 3.16)
+project(ui_project LANGUAGES CXX)
+
+find_package(Qt6 REQUIRED COMPONENTS Core Gui Widgets)
+qt_standard_project_setup()
+
+qt_add_executable(ui_project
+    main.cpp
+    widget.cpp
+    widget.h
+)
+
+target_sources(ui_project
+    PRIVATE
+        widget.ui
+)
+
+target_link_libraries(ui_project
+    PRIVATE
+        Qt::Core
+        Qt::Gui
+        Qt::Widgets
+)
diff --git a/tests/auto/tools/qt_cmake_create/testdata/ui_project/main.cpp b/tests/auto/tools/qt_cmake_create/testdata/ui_project/main.cpp
new file mode 100644
index 00000000..b0a4ec26
--- /dev/null
+++ b/tests/auto/tools/qt_cmake_create/testdata/ui_project/main.cpp
@@ -0,0 +1,11 @@
+#include "widget.h"
+
+#include <QApplication>
+
+int main(int argc, char *argv[])
+{
+    QApplication a(argc, argv);
+    Widget w;
+    w.show();
+    return a.exec();
+}
diff --git a/tests/auto/tools/qt_cmake_create/testdata/ui_project/widget.cpp b/tests/auto/tools/qt_cmake_create/testdata/ui_project/widget.cpp
new file mode 100644
index 00000000..815d5f8c
--- /dev/null
+++ b/tests/auto/tools/qt_cmake_create/testdata/ui_project/widget.cpp
@@ -0,0 +1,15 @@
+#include "widget.h"
+#include "ui_widget.h"
+
+Widget::Widget(QWidget *parent)
+    : QWidget(parent)
+    , ui(new Ui::Widget)
+{
+    ui->setupUi(this);
+}
+
+Widget::~Widget()
+{
+    delete ui;
+}
+
diff --git a/tests/auto/tools/qt_cmake_create/testdata/ui_project/widget.h b/tests/auto/tools/qt_cmake_create/testdata/ui_project/widget.h
new file mode 100644
index 00000000..1fe2322b
--- /dev/null
+++ b/tests/auto/tools/qt_cmake_create/testdata/ui_project/widget.h
@@ -0,0 +1,21 @@
+#ifndef WIDGET_H
+#define WIDGET_H
+
+#include <QWidget>
+
+QT_BEGIN_NAMESPACE
+namespace Ui { class Widget; }
+QT_END_NAMESPACE
+
+class Widget : public QWidget
+{
+    Q_OBJECT
+
+public:
+    Widget(QWidget *parent = nullptr);
+    ~Widget();
+
+private:
+    Ui::Widget *ui;
+};
+#endif // WIDGET_H
diff --git a/tests/auto/tools/qt_cmake_create/testdata/ui_project/widget.ui b/tests/auto/tools/qt_cmake_create/testdata/ui_project/widget.ui
new file mode 100644
index 00000000..d2c4f620
--- /dev/null
+++ b/tests/auto/tools/qt_cmake_create/testdata/ui_project/widget.ui
@@ -0,0 +1,32 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<ui version="4.0">
+ <class>Widget</class>
+ <widget class="QWidget" name="Widget">
+  <property name="geometry">
+   <rect>
+    <x>0</x>
+    <y>0</y>
+    <width>800</width>
+    <height>600</height>
+   </rect>
+  </property>
+  <property name="windowTitle">
+   <string>Widget</string>
+  </property>
+  <widget class="QLabel" name="label">
+   <property name="geometry">
+    <rect>
+     <x>10</x>
+     <y>6</y>
+     <width>781</width>
+     <height>581</height>
+    </rect>
+   </property>
+   <property name="text">
+    <string>Now I have CMakeLists.txt. Thanks!</string>
+   </property>
+  </widget>
+ </widget>
+ <resources/>
+ <connections/>
+</ui>
diff --git a/tests/auto/tools/qt_cmake_create/tst_qt_cmake_create.cpp b/tests/auto/tools/qt_cmake_create/tst_qt_cmake_create.cpp
new file mode 100644
index 00000000..5d358ec6
--- /dev/null
+++ b/tests/auto/tools/qt_cmake_create/tst_qt_cmake_create.cpp
@@ -0,0 +1,157 @@
+// Copyright (C) 2023 The Qt Company Ltd.
+// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only WITH Qt-GPL-exception-1.0
+
+#include <QTest>
+#include <QtTest>
+
+#include <QLibraryInfo>
+#include <QLatin1StringView>
+#include <QDir>
+#include <QFileInfo>
+#include <QProcess>
+#include <QCryptographicHash>
+
+#include <array>
+
+using namespace Qt::Literals::StringLiterals;
+
+class tst_qt_cmake_create : public QObject
+{
+    Q_OBJECT
+
+public:
+    tst_qt_cmake_create();
+
+private slots:
+    void init();
+    void initTestCase();
+    void generatingCMakeLists_data();
+    void generatingCMakeLists();
+
+private:
+    QString m_testWorkDir;
+    QString m_shell;
+    QString m_cmd;
+};
+
+tst_qt_cmake_create::tst_qt_cmake_create() : m_testWorkDir(qApp->applicationDirPath()) { }
+
+void tst_qt_cmake_create::initTestCase()
+{
+    QString binpath = QLibraryInfo::path(QLibraryInfo::BinariesPath);
+#ifdef Q_OS_WINDOWS
+    m_shell = QString("cmd.exe");
+    m_cmd = QString("%1/qt-cmake-create.bat").arg(binpath);
+#else
+    m_shell = QString("/bin/sh");
+    m_cmd = QString("%1/qt-cmake-create").arg(binpath);
+    QVERIFY(QFile::exists(m_shell));
+#endif
+
+    QVERIFY(QFile::exists(m_cmd));
+}
+
+void tst_qt_cmake_create::init()
+{
+    QFETCH(QString, projectDirPath);
+    QDir workDir(m_testWorkDir);
+    QString fullProjectPath = m_testWorkDir + '/' + projectDirPath;
+    if (workDir.exists(fullProjectPath)) {
+        QDir projectDir(projectDirPath);
+        projectDir.removeRecursively();
+    }
+    workDir.mkdir(projectDirPath);
+    auto testDataPath = QFINDTESTDATA("testdata"_L1 + '/' + projectDirPath);
+    QVERIFY(QFile::exists(testDataPath));
+
+    for (const auto &fileInfo : QDir(testDataPath).entryInfoList(QDir::Files)) {
+        QVERIFY(QFile::copy(fileInfo.absoluteFilePath(),
+                            fullProjectPath + '/' + fileInfo.fileName()));
+    }
+}
+
+void tst_qt_cmake_create::generatingCMakeLists_data()
+{
+    QTest::addColumn<QString>("projectDirPath");
+    QTest::addColumn<bool>("expectPass");
+    QTest::addColumn<QString>("workDir");
+
+    const std::array<QLatin1StringView, 5> expectPass = {
+        "cpp"_L1, "proto"_L1, "qml"_L1, "qrc"_L1, "ui"_L1,
+    };
+
+    const std::array<QString, 5> workDirs = {
+        m_testWorkDir, ""_L1, m_testWorkDir, ""_L1, m_testWorkDir,
+    };
+
+    static_assert(expectPass.size() == workDirs.size());
+
+    const QLatin1StringView expectFail[] = {
+        "ui_only"_L1,
+    };
+
+    for (size_t i = 0; i < expectPass.size(); ++i) {
+        const auto type = expectPass.at(i);
+        QTest::addRow("tst_qt_cmake_create_%s", type.data())
+                << QString("%1_project").arg(type) << true << workDirs.at(i);
+    }
+
+    for (const auto type : expectFail) {
+        QTest::addRow("tst_qt_cmake_create_%s", type.data())
+                << QString("%1_project").arg(type) << false << QString();
+    }
+}
+
+void tst_qt_cmake_create::generatingCMakeLists()
+{
+    QFETCH(QString, projectDirPath);
+    QFETCH(bool, expectPass);
+    QFETCH(QString, workDir);
+
+    QString fullProjectPath = m_testWorkDir + '/' + projectDirPath;
+    QProcess command;
+    QStringList arguments = {
+#ifdef Q_OS_WINDOWS
+        "/C"_L1,
+#endif
+        m_cmd
+    };
+
+    QString workingDirectory = fullProjectPath;
+    if (!workDir.isEmpty()) {
+        workingDirectory = workDir;
+        arguments.append(fullProjectPath);
+    }
+    command.setProgram(m_shell);
+    command.setArguments(arguments);
+    command.setWorkingDirectory(workingDirectory);
+
+    command.start();
+    QVERIFY(command.waitForFinished());
+    QCOMPARE(command.exitCode() == 0, expectPass);
+
+    QFile actualFile = QFile(fullProjectPath + '/' + "CMakeLists.txt"_L1);
+
+    // Skip the rest if we expect that qt-cmake-create should exit with error
+    if (!expectPass) {
+        QVERIFY(!actualFile.exists());
+        return;
+    }
+
+    QFile expectedFile = QFile(fullProjectPath + '/' + "CMakeLists.txt.expected"_L1);
+    QVERIFY(actualFile.open(QFile::ReadOnly));
+    QVERIFY(expectedFile.open(QFile::ReadOnly));
+
+    auto actualData = actualFile.readAll();
+    actualData.replace(QByteArrayView("\r\n"), QByteArrayView("\n"));
+    auto expectedData = expectedFile.readAll();
+    expectedData.replace(QByteArrayView("\r\n"), QByteArrayView("\n"));
+
+    static auto hash = [](const QByteArray &data) {
+        return QCryptographicHash::hash(data, QCryptographicHash::Sha1).toHex();
+    };
+    QCOMPARE_EQ(hash(actualData), hash(expectedData));
+}
+
+QTEST_MAIN(tst_qt_cmake_create)
+#include "tst_qt_cmake_create.moc"
diff --git a/tests/auto/tools/rcc/tst_rcc.cpp b/tests/auto/tools/rcc/tst_rcc.cpp
index f65770b1..629bce92 100644
--- a/tests/auto/tools/rcc/tst_rcc.cpp
+++ b/tests/auto/tools/rcc/tst_rcc.cpp
@@ -114,7 +114,7 @@ static QString doCompare(const QStringList &actual, const QStringList &expected,
                 ba.append("File " + fi.absoluteFilePath().toUtf8() + " does not exist!");
                 break;
             }
-            const quint64 timeStamp = quint64(fi.lastModified().toMSecsSinceEpoch());
+            const quint64 timeStamp = quint64(fi.lastModified(QTimeZone::UTC).toMSecsSinceEpoch());
             expectedLine.clear();
             for (int shift = 56; shift >= 0; shift -= 8) {
                 expectedLine.append(QLatin1String("0x"));
diff --git a/tests/auto/wasm/tst_localfileapi.cpp b/tests/auto/wasm/tst_localfileapi.cpp
index 0d17202d..95bdbcff 100644
--- a/tests/auto/wasm/tst_localfileapi.cpp
+++ b/tests/auto/wasm/tst_localfileapi.cpp
@@ -11,14 +11,16 @@ class tst_LocalFileApi : public QObject
     Q_OBJECT
 
 private:
-    emscripten::val makeAccept(std::vector<emscripten::val> types) {
+    emscripten::val makeAccept(std::vector<emscripten::val> types)
+    {
         auto accept = emscripten::val::object();
         accept.set("application/octet-stream",
             emscripten::val::array(std::move(types)));
         return accept;
     }
 
-    emscripten::val makeType(QString description, std::vector<emscripten::val> acceptExtensions) {
+    emscripten::val makeType(QString description, std::vector<emscripten::val> acceptExtensions)
+    {
         using namespace emscripten;
 
         auto type = val::object();
@@ -65,6 +67,8 @@ private Q_SLOTS:
     void openFileOptions();
     void saveFileOptions_data();
     void saveFileOptions();
+    void fileInputAccept_data();
+    void fileInputAccept();
 };
 
 bool valDeepEquals(emscripten::val lhs, emscripten::val rhs)
@@ -79,24 +83,27 @@ bool valDeepEquals(emscripten::val lhs, emscripten::val rhs)
 void tst_LocalFileApi::fileExtensionFilterTransformation_data()
 {
     QTest::addColumn<QString>("qtFileFilter");
-    QTest::addColumn<std::optional<std::string>>("expectedWebExtensionFilter");
+    QTest::addColumn<std::optional<QString>>("expectedWebExtensionFilter");
 
-    QTest::newRow("PNG extension with an asterisk") << QString("*.png") << std::make_optional<std::string>(".png");
-    QTest::newRow("Long extension with an asterisk") << QString("*.someotherfile") << std::make_optional<std::string>(".someotherfile");
-    QTest::newRow(".dat with no asterisk") << QString(".dat") << std::make_optional<std::string>(".dat");
-    QTest::newRow("Multiple asterisks") << QString("*ot*.abc") << std::optional<std::string>();
-    QTest::newRow("Filename") << QString("abcd.abc") << std::optional<std::string>();
-    QTest::newRow("match all") << QString("*.*") << std::optional<std::string>();
+    QTest::newRow("PNG extension with an asterisk")
+            << QString("*.png") << std::make_optional<QString>(".png");
+    QTest::newRow("Long extension with an asterisk")
+            << QString("*.someotherfile") << std::make_optional<QString>(".someotherfile");
+    QTest::newRow(".dat with no asterisk")
+            << QString(".dat") << std::make_optional<QString>(".dat");
+    QTest::newRow("Multiple asterisks") << QString("*ot*.abc") << std::optional<QString>();
+    QTest::newRow("Filename") << QString("abcd.abc") << std::optional<QString>();
+    QTest::newRow("match all") << QString("*.*") << std::optional<QString>();
 }
 
 void tst_LocalFileApi::fileExtensionFilterTransformation()
 {
     QFETCH(QString, qtFileFilter);
-    QFETCH(std::optional<std::string>, expectedWebExtensionFilter);
+    QFETCH(std::optional<QString>, expectedWebExtensionFilter);
 
     auto result = LocalFileApi::Type::Accept::MimeType::Extension::fromQt(qtFileFilter);
     if (expectedWebExtensionFilter) {
-        QCOMPARE_EQ(expectedWebExtensionFilter, result->asVal().as<std::string>());
+        QCOMPARE_EQ(expectedWebExtensionFilter, result->value());
     } else {
         QVERIFY(!result.has_value());
     }
@@ -107,34 +114,37 @@ void tst_LocalFileApi::acceptTransformation_data()
     using namespace emscripten;
 
     QTest::addColumn<QString>("qtFilterList");
-    QTest::addColumn<emscripten::val>("expectedWebType");
+    QTest::addColumn<QStringList>("expectedExtensionList");
 
-    QTest::newRow("Multiple types") << QString("*.png *.other *.txt")
-        << makeAccept(std::vector<val> { val(".png"), val(".other"), val(".txt") });
+    QTest::newRow("Multiple types")
+            << QString("*.png *.other *.txt") << QStringList{ ".png", ".other", ".txt" };
 
-    QTest::newRow("Single type") << QString("*.png")
-        << makeAccept(std::vector<val> { val(".png") });
+    QTest::newRow("Single type") << QString("*.png") << QStringList{ ".png" };
 
-    QTest::newRow("No filter when accepts all") << QString("*.*")
-        << val::undefined();
+    QTest::newRow("No filter when accepts all") << QString("*.*") << QStringList();
 
-    QTest::newRow("No filter when one filter accepts all") << QString("*.* *.jpg")
-        << val::undefined();
+    QTest::newRow("No filter when one filter accepts all") << QString("*.* *.jpg") << QStringList();
 
     QTest::newRow("Weird spaces") << QString("    *.jpg     *.png *.icon  ")
-        << makeAccept(std::vector<val> { val(".jpg"), val(".png"), val(".icon") });
+                                  << QStringList{ ".jpg", ".png", ".icon" };
 }
 
 void tst_LocalFileApi::acceptTransformation()
 {
     QFETCH(QString, qtFilterList);
-    QFETCH(emscripten::val, expectedWebType);
+    QFETCH(QStringList, expectedExtensionList);
 
     auto result = LocalFileApi::Type::Accept::fromQt(qtFilterList);
-    if (!expectedWebType.isUndefined()) {
-        QVERIFY(valDeepEquals(result->asVal(), expectedWebType));
-    } else {
+    if (expectedExtensionList.isEmpty()) {
         QVERIFY(!result.has_value());
+    } else {
+        QStringList transformed;
+        std::transform(result->mimeType().extensions().begin(),
+                       result->mimeType().extensions().end(), std::back_inserter(transformed),
+                       [](const LocalFileApi::Type::Accept::MimeType::Extension &extension) {
+                           return extension.value().toString();
+                       });
+        QCOMPARE_EQ(expectedExtensionList, transformed);
     }
 }
 
@@ -143,26 +153,31 @@ void tst_LocalFileApi::typeTransformation_data()
     using namespace emscripten;
 
     QTest::addColumn<QString>("qtFilterList");
-    QTest::addColumn<emscripten::val>("expectedWebType");
+    QTest::addColumn<QString>("expectedDescription");
+    QTest::addColumn<QStringList>("expectedExtensions");
 
-    QTest::newRow("With description") << QString("Text files (*.txt)")
-        << makeType("Text files", std::vector<val> { val(".txt") });
+    QTest::newRow("With description")
+            << QString("Text files (*.txt)") << QString("Text files") << QStringList{ ".txt" };
 
-    QTest::newRow("No description") << QString("*.jpg")
-        << makeType("", std::vector<val> { val(".jpg") });
+    QTest::newRow("No description") << QString("*.jpg") << QString("") << QStringList{ ".jpg" };
 }
 
 void tst_LocalFileApi::typeTransformation()
 {
     QFETCH(QString, qtFilterList);
-    QFETCH(emscripten::val, expectedWebType);
+    QFETCH(QString, expectedDescription);
+    QFETCH(QStringList, expectedExtensions);
 
     auto result = LocalFileApi::Type::fromQt(qtFilterList);
-    if (!expectedWebType.isUndefined()) {
-        QVERIFY(valDeepEquals(result->asVal(), expectedWebType));
-    } else {
-        QVERIFY(!result.has_value());
-    }
+    QCOMPARE_EQ(result->description(), expectedDescription);
+
+    QStringList transformed;
+    std::transform(result->accept()->mimeType().extensions().begin(),
+                   result->accept()->mimeType().extensions().end(), std::back_inserter(transformed),
+                   [](const LocalFileApi::Type::Accept::MimeType::Extension &extension) {
+                       return extension.value().toString();
+                   });
+    QCOMPARE_EQ(expectedExtensions, transformed);
 }
 
 void tst_LocalFileApi::openFileOptions_data()
@@ -217,5 +232,29 @@ void tst_LocalFileApi::saveFileOptions()
     QVERIFY(valDeepEquals(result, expectedWebType));
 }
 
+void tst_LocalFileApi::fileInputAccept_data()
+{
+    using namespace emscripten;
+
+    QTest::addColumn<QStringList>("qtFilterList");
+    QTest::addColumn<QString>("expectedAccept");
+
+    QTest::newRow("Multiple files")
+            << QStringList{ "Text files (*.txt)", "Images (*.jpg *.png)", "*.bat" }
+            << ".txt,.jpg,.png,.bat";
+    QTest::newRow("Spaces") << QStringList{ "   Documents (*.doc)", "Everything (*.*)",
+                                            "   Stuff (  *.stf   *.tng)", "    *.exe" }
+                            << ".doc,.stf,.tng,.exe";
+}
+
+void tst_LocalFileApi::fileInputAccept()
+{
+    QFETCH(QStringList, qtFilterList);
+    QFETCH(QString, expectedAccept);
+
+    auto result = LocalFileApi::makeFileInputAccept(qtFilterList);
+    QCOMPARE_EQ(expectedAccept, QString::fromStdString(result));
+}
+
 QTEST_APPLESS_MAIN(tst_LocalFileApi)
 #include "tst_localfileapi.moc"
diff --git a/tests/auto/wasm/tst_qwasmwindowstack.cpp b/tests/auto/wasm/tst_qwasmwindowstack.cpp
index 3c7205e6..1ae07d5b 100644
--- a/tests/auto/wasm/tst_qwasmwindowstack.cpp
+++ b/tests/auto/wasm/tst_qwasmwindowstack.cpp
@@ -31,11 +31,16 @@ private slots:
     void init();
 
     void insertion();
-    void raisingTheRootIsImpossible();
     void raising();
+    void raisingWithAlwaysOnBottom();
+    void raisingWithAlwaysOnTop();
     void lowering();
+    void loweringWithAlwaysOnBottom();
+    void loweringWithAlwaysOnTop();
     void removing();
-    void removingTheRoot();
+    void removingWithAlwaysOnBottom();
+    void removingWithAlwaysOnTop();
+    void positionPreferenceChanges();
     void clearing();
 
 private:
@@ -46,7 +51,7 @@ private:
             m_onTopLevelChangedAction();
     }
 
-    void verifyTopWindowChangedCalled(int expected = 1)
+    void verifyWindowOrderChanged(int expected = 1)
     {
         QCOMPARE(expected, m_topLevelChangedCallCount);
         clearCallbackCounter();
@@ -54,8 +59,8 @@ private:
 
     void clearCallbackCounter() { m_topLevelChangedCallCount = 0; }
 
-    QWasmWindowStack::TopWindowChangedCallbackType m_mockCallback;
-    QWasmWindowStack::TopWindowChangedCallbackType m_onTopLevelChangedAction;
+    QWasmWindowStack::WindowOrderChangedCallbackType m_mockCallback;
+    QWasmWindowStack::WindowOrderChangedCallbackType m_onTopLevelChangedAction;
     int m_topLevelChangedCallCount = 0;
 
     QWasmWindow m_root;
@@ -68,7 +73,7 @@ private:
 
 void tst_QWasmWindowStack::init()
 {
-    m_onTopLevelChangedAction = QWasmWindowStack::TopWindowChangedCallbackType();
+    m_onTopLevelChangedAction = QWasmWindowStack::WindowOrderChangedCallbackType();
     clearCallbackCounter();
 }
 
@@ -77,51 +82,28 @@ void tst_QWasmWindowStack::insertion()
     QWasmWindowStack stack(m_mockCallback);
 
     m_onTopLevelChangedAction = [this, &stack]() { QVERIFY(stack.topWindow() == &m_root); };
-    stack.pushWindow(&m_root);
-    verifyTopWindowChangedCalled();
+    stack.pushWindow(&m_root, QWasmWindowStack::PositionPreference::Regular);
+    verifyWindowOrderChanged();
 
     m_onTopLevelChangedAction = [this, &stack]() { QVERIFY(stack.topWindow() == &m_window1); };
-    stack.pushWindow(&m_window1);
-    verifyTopWindowChangedCalled();
+    stack.pushWindow(&m_window1, QWasmWindowStack::PositionPreference::Regular);
+    verifyWindowOrderChanged();
 
     m_onTopLevelChangedAction = [this, &stack]() { QVERIFY(stack.topWindow() == &m_window2); };
-    stack.pushWindow(&m_window2);
-    verifyTopWindowChangedCalled();
-}
-
-void tst_QWasmWindowStack::raisingTheRootIsImpossible()
-{
-    QWasmWindowStack stack(m_mockCallback);
-
-    stack.pushWindow(&m_root);
-    stack.pushWindow(&m_window1);
-    stack.pushWindow(&m_window2);
-    stack.pushWindow(&m_window3);
-    stack.pushWindow(&m_window4);
-    stack.pushWindow(&m_window5);
-
-    clearCallbackCounter();
-
-    stack.raise(&m_root);
-    verifyTopWindowChangedCalled(0);
-
-    QCOMPARE(&m_window5, stack.topWindow());
-
-    m_onTopLevelChangedAction = [this, &stack]() { QVERIFY(stack.topWindow() == &m_window2); };
-    stack.raise(&m_window2);
-    verifyTopWindowChangedCalled();
+    stack.pushWindow(&m_window2, QWasmWindowStack::PositionPreference::Regular);
+    verifyWindowOrderChanged();
 }
 
 void tst_QWasmWindowStack::raising()
 {
     QWasmWindowStack stack(m_mockCallback);
 
-    stack.pushWindow(&m_root);
-    stack.pushWindow(&m_window1);
-    stack.pushWindow(&m_window2);
-    stack.pushWindow(&m_window3);
-    stack.pushWindow(&m_window4);
-    stack.pushWindow(&m_window5);
+    stack.pushWindow(&m_root, QWasmWindowStack::PositionPreference::StayOnBottom);
+    stack.pushWindow(&m_window1, QWasmWindowStack::PositionPreference::Regular);
+    stack.pushWindow(&m_window2, QWasmWindowStack::PositionPreference::Regular);
+    stack.pushWindow(&m_window3, QWasmWindowStack::PositionPreference::Regular);
+    stack.pushWindow(&m_window4, QWasmWindowStack::PositionPreference::Regular);
+    stack.pushWindow(&m_window5, QWasmWindowStack::PositionPreference::Regular);
 
     clearCallbackCounter();
 
@@ -129,30 +111,176 @@ void tst_QWasmWindowStack::raising()
 
     m_onTopLevelChangedAction = [this, &stack]() { QVERIFY(stack.topWindow() == &m_window1); };
     stack.raise(&m_window1);
-    verifyTopWindowChangedCalled();
+    verifyWindowOrderChanged();
     QCOMPARE(&m_window1, stack.topWindow());
 
     stack.raise(&m_window1);
-    verifyTopWindowChangedCalled(0);
+    verifyWindowOrderChanged(0);
     QCOMPARE(&m_window1, stack.topWindow());
 
     m_onTopLevelChangedAction = [this, &stack]() { QVERIFY(stack.topWindow() == &m_window3); };
     stack.raise(&m_window3);
-    verifyTopWindowChangedCalled();
+    verifyWindowOrderChanged();
     QCOMPARE(&m_window3, stack.topWindow());
 }
 
+void tst_QWasmWindowStack::raisingWithAlwaysOnBottom()
+{
+    QWasmWindowStack stack(m_mockCallback);
+
+    QWasmWindow alwaysOnBottomWindow1;
+    QWasmWindow alwaysOnBottomWindow2;
+    QWasmWindow alwaysOnBottomWindow3;
+
+    stack.pushWindow(&alwaysOnBottomWindow1, QWasmWindowStack::PositionPreference::StayOnBottom);
+    stack.pushWindow(&alwaysOnBottomWindow2, QWasmWindowStack::PositionPreference::StayOnBottom);
+    stack.pushWindow(&alwaysOnBottomWindow3, QWasmWindowStack::PositionPreference::StayOnBottom);
+    stack.pushWindow(&m_window1, QWasmWindowStack::PositionPreference::Regular);
+    stack.pushWindow(&m_window2, QWasmWindowStack::PositionPreference::Regular);
+    stack.pushWindow(&m_window3, QWasmWindowStack::PositionPreference::Regular);
+    // Window order: 3 2 1 | B3 B2 B1
+
+    clearCallbackCounter();
+
+    std::vector<QWasmWindow *> expectedWindowOrder = { &m_window3,
+                                                       &m_window2,
+                                                       &m_window1,
+                                                       &alwaysOnBottomWindow3,
+                                                       &alwaysOnBottomWindow2,
+                                                       &alwaysOnBottomWindow1 };
+    QVERIFY(std::equal(expectedWindowOrder.begin(), expectedWindowOrder.end(),
+                       getWindowsFrontToBack(&stack).begin()));
+    QCOMPARE(&m_window3, stack.topWindow());
+
+    // Window order: 1 3 2 | B3 B2 B1
+    stack.raise(&m_window1);
+
+    expectedWindowOrder = { &m_window1,
+                            &m_window3,
+                            &m_window2,
+                            &alwaysOnBottomWindow3,
+                            &alwaysOnBottomWindow2,
+                            &alwaysOnBottomWindow1 };
+    QVERIFY(std::equal(expectedWindowOrder.begin(), expectedWindowOrder.end(),
+                       getWindowsFrontToBack(&stack).begin()));
+    verifyWindowOrderChanged();
+    QCOMPARE(&m_window1, stack.topWindow());
+
+    // Window order: 1 3 2 | B1 B3 B2
+    stack.raise(&alwaysOnBottomWindow1);
+
+    expectedWindowOrder = { &m_window1,
+                            &m_window3,
+                            &m_window2,
+                            &alwaysOnBottomWindow1,
+                            &alwaysOnBottomWindow3,
+                            &alwaysOnBottomWindow2 };
+    QVERIFY(std::equal(expectedWindowOrder.begin(), expectedWindowOrder.end(),
+                       getWindowsFrontToBack(&stack).begin()));
+    verifyWindowOrderChanged();
+    QCOMPARE(&m_window1, stack.topWindow());
+
+    // Window order: 1 3 2 | B3 B1 B2
+    stack.raise(&alwaysOnBottomWindow3);
+
+    expectedWindowOrder = { &m_window1,
+                            &m_window3,
+                            &m_window2,
+                            &alwaysOnBottomWindow3,
+                            &alwaysOnBottomWindow1,
+                            &alwaysOnBottomWindow2 };
+    QVERIFY(std::equal(expectedWindowOrder.begin(), expectedWindowOrder.end(),
+                       getWindowsFrontToBack(&stack).begin()));
+    verifyWindowOrderChanged();
+    QCOMPARE(&m_window1, stack.topWindow());
+}
+
+void tst_QWasmWindowStack::raisingWithAlwaysOnTop()
+{
+    QWasmWindowStack stack(m_mockCallback);
+
+    QWasmWindow alwaysOnTopWindow1;
+    QWasmWindow alwaysOnTopWindow2;
+    QWasmWindow alwaysOnTopWindow3;
+
+    stack.pushWindow(&m_root, QWasmWindowStack::PositionPreference::StayOnBottom);
+    stack.pushWindow(&m_window1, QWasmWindowStack::PositionPreference::Regular);
+    stack.pushWindow(&alwaysOnTopWindow1, QWasmWindowStack::PositionPreference::StayOnTop);
+    stack.pushWindow(&m_window3, QWasmWindowStack::PositionPreference::Regular);
+    stack.pushWindow(&alwaysOnTopWindow2, QWasmWindowStack::PositionPreference::StayOnTop);
+    stack.pushWindow(&m_window5, QWasmWindowStack::PositionPreference::Regular);
+    stack.pushWindow(&alwaysOnTopWindow3, QWasmWindowStack::PositionPreference::StayOnTop);
+    // Window order: T3 T2 T1 | 5 3 1 | R
+
+    clearCallbackCounter();
+
+    std::vector<QWasmWindow *> expectedWindowOrder = { &alwaysOnTopWindow3,
+                                                       &alwaysOnTopWindow2,
+                                                       &alwaysOnTopWindow1,
+                                                       &m_window5,
+                                                       &m_window3,
+                                                       &m_window1,
+                                                       &m_root };
+    QVERIFY(std::equal(expectedWindowOrder.begin(), expectedWindowOrder.end(),
+                       getWindowsFrontToBack(&stack).begin()));
+
+    // Window order: T3 T2 T1 | 1 5 3 | R
+    stack.raise(&m_window1);
+
+    expectedWindowOrder = { &alwaysOnTopWindow3,
+                            &alwaysOnTopWindow2,
+                            &alwaysOnTopWindow1,
+                            &m_window1,
+                            &m_window5,
+                            &m_window3,
+                            &m_root };
+    QVERIFY(std::equal(expectedWindowOrder.begin(), expectedWindowOrder.end(),
+                       getWindowsFrontToBack(&stack).begin()));
+    verifyWindowOrderChanged();
+    QCOMPARE(&alwaysOnTopWindow3, stack.topWindow());
+
+    // Window order: T3 T2 T1 3 1 5 R
+    stack.raise(&m_window3);
+
+    expectedWindowOrder = { &alwaysOnTopWindow3,
+                            &alwaysOnTopWindow2,
+                            &alwaysOnTopWindow1,
+                            &m_window3,
+                            &m_window1,
+                            &m_window5,
+                            &m_root };
+    QVERIFY(std::equal(expectedWindowOrder.begin(), expectedWindowOrder.end(),
+                       getWindowsFrontToBack(&stack).begin()));
+    verifyWindowOrderChanged();
+    QCOMPARE(&alwaysOnTopWindow3, stack.topWindow());
+
+    // Window order: T1 T3 T2 3 1 5 R
+    stack.raise(&alwaysOnTopWindow1);
+
+    expectedWindowOrder = { &alwaysOnTopWindow1,
+                            &alwaysOnTopWindow3,
+                            &alwaysOnTopWindow2,
+                            &m_window3,
+                            &m_window1,
+                            &m_window5,
+                            &m_root };
+    QVERIFY(std::equal(expectedWindowOrder.begin(), expectedWindowOrder.end(),
+                       getWindowsFrontToBack(&stack).begin()));
+    verifyWindowOrderChanged();
+    QCOMPARE(&alwaysOnTopWindow1, stack.topWindow());
+}
+
 void tst_QWasmWindowStack::lowering()
 {
     QWasmWindowStack stack(m_mockCallback);
 
-    stack.pushWindow(&m_root);
-    stack.pushWindow(&m_window1);
-    stack.pushWindow(&m_window2);
-    stack.pushWindow(&m_window3);
-    stack.pushWindow(&m_window4);
-    stack.pushWindow(&m_window5);
-    // Window order: 5 4 3 2 1 R
+    stack.pushWindow(&m_root, QWasmWindowStack::PositionPreference::StayOnBottom);
+    stack.pushWindow(&m_window1, QWasmWindowStack::PositionPreference::Regular);
+    stack.pushWindow(&m_window2, QWasmWindowStack::PositionPreference::Regular);
+    stack.pushWindow(&m_window3, QWasmWindowStack::PositionPreference::Regular);
+    stack.pushWindow(&m_window4, QWasmWindowStack::PositionPreference::Regular);
+    stack.pushWindow(&m_window5, QWasmWindowStack::PositionPreference::Regular);
+    // Window order: 5 4 3 2 1 | R
 
     clearCallbackCounter();
 
@@ -160,29 +288,166 @@ void tst_QWasmWindowStack::lowering()
 
     m_onTopLevelChangedAction = [this, &stack]() { QVERIFY(stack.topWindow() == &m_window4); };
     stack.lower(&m_window5);
+
     // Window order: 4 3 2 1 5 R
-    verifyTopWindowChangedCalled();
+    verifyWindowOrderChanged();
     QCOMPARE(&m_window4, stack.topWindow());
 
     stack.lower(&m_window3);
     // Window order: 4 2 1 5 3 R
-    verifyTopWindowChangedCalled(0);
+    verifyWindowOrderChanged();
     std::vector<QWasmWindow *> expectedWindowOrder = { &m_window4, &m_window2, &m_window1,
                                                        &m_window5, &m_window3, &m_root };
+
     QVERIFY(std::equal(expectedWindowOrder.begin(), expectedWindowOrder.end(),
                        getWindowsFrontToBack(&stack).begin()));
 }
 
+void tst_QWasmWindowStack::loweringWithAlwaysOnBottom()
+{
+    QWasmWindowStack stack(m_mockCallback);
+
+    QWasmWindow alwaysOnBottomWindow1;
+    QWasmWindow alwaysOnBottomWindow2;
+    QWasmWindow alwaysOnBottomWindow3;
+
+    stack.pushWindow(&alwaysOnBottomWindow1, QWasmWindowStack::PositionPreference::StayOnBottom);
+    stack.pushWindow(&alwaysOnBottomWindow2, QWasmWindowStack::PositionPreference::StayOnBottom);
+    stack.pushWindow(&alwaysOnBottomWindow3, QWasmWindowStack::PositionPreference::StayOnBottom);
+    stack.pushWindow(&m_window1, QWasmWindowStack::PositionPreference::Regular);
+    stack.pushWindow(&m_window2, QWasmWindowStack::PositionPreference::Regular);
+    stack.pushWindow(&m_window3, QWasmWindowStack::PositionPreference::Regular);
+    // Window order: 3 2 1 | B3 B2 B1
+
+    clearCallbackCounter();
+
+    std::vector<QWasmWindow *> expectedWindowOrder = { &m_window3,
+                                                       &m_window2,
+                                                       &m_window1,
+                                                       &alwaysOnBottomWindow3,
+                                                       &alwaysOnBottomWindow2,
+                                                       &alwaysOnBottomWindow1 };
+    QVERIFY(std::equal(expectedWindowOrder.begin(), expectedWindowOrder.end(),
+                       getWindowsFrontToBack(&stack).begin()));
+    QCOMPARE(&m_window3, stack.topWindow());
+
+    // Window order: 2 1 3 | B3 B2 B1
+    stack.lower(&m_window3);
+
+    expectedWindowOrder = { &m_window2,
+                            &m_window1,
+                            &m_window3,
+                            &alwaysOnBottomWindow3,
+                            &alwaysOnBottomWindow2,
+                            &alwaysOnBottomWindow1 };
+    QVERIFY(std::equal(expectedWindowOrder.begin(), expectedWindowOrder.end(),
+                       getWindowsFrontToBack(&stack).begin()));
+    verifyWindowOrderChanged();
+    QCOMPARE(&m_window2, stack.topWindow());
+
+    // Window order: 2 1 3 | B2 B1 B3
+    stack.lower(&alwaysOnBottomWindow3);
+
+    expectedWindowOrder = { &m_window2,
+                            &m_window1,
+                            &m_window3,
+                            &alwaysOnBottomWindow2,
+                            &alwaysOnBottomWindow1,
+                            &alwaysOnBottomWindow3 };
+    QVERIFY(std::equal(expectedWindowOrder.begin(), expectedWindowOrder.end(),
+                       getWindowsFrontToBack(&stack).begin()));
+    verifyWindowOrderChanged();
+    QCOMPARE(&m_window2, stack.topWindow());
+
+    // Window order: 2 1 3 | B2 B3 B1
+    stack.lower(&alwaysOnBottomWindow1);
+
+    expectedWindowOrder = { &m_window2,
+                            &m_window1,
+                            &m_window3,
+                            &alwaysOnBottomWindow2,
+                            &alwaysOnBottomWindow3,
+                            &alwaysOnBottomWindow1 };
+    QVERIFY(std::equal(expectedWindowOrder.begin(), expectedWindowOrder.end(),
+                       getWindowsFrontToBack(&stack).begin()));
+    verifyWindowOrderChanged();
+    QCOMPARE(&m_window2, stack.topWindow());
+}
+
+void tst_QWasmWindowStack::loweringWithAlwaysOnTop()
+{
+    QWasmWindowStack stack(m_mockCallback);
+
+    QWasmWindow alwaysOnTopWindow1;
+    QWasmWindow alwaysOnTopWindow2;
+
+    stack.pushWindow(&m_root, QWasmWindowStack::PositionPreference::StayOnBottom);
+    stack.pushWindow(&m_window1, QWasmWindowStack::PositionPreference::Regular);
+    stack.pushWindow(&alwaysOnTopWindow1, QWasmWindowStack::PositionPreference::StayOnTop);
+    stack.pushWindow(&m_window3, QWasmWindowStack::PositionPreference::Regular);
+    stack.pushWindow(&alwaysOnTopWindow2, QWasmWindowStack::PositionPreference::StayOnTop);
+    stack.pushWindow(&m_window5, QWasmWindowStack::PositionPreference::Regular);
+    // Window order: T2 T1 5 3 1 R
+
+    clearCallbackCounter();
+
+    std::vector<QWasmWindow *> expectedWindowOrder = { &alwaysOnTopWindow2, &alwaysOnTopWindow1,
+                                                       &m_window5,          &m_window3,
+                                                       &m_window1,          &m_root };
+    QVERIFY(std::equal(expectedWindowOrder.begin(), expectedWindowOrder.end(),
+                       getWindowsFrontToBack(&stack).begin()));
+
+    // Window order: T1 T2 5 3 1 R
+    stack.lower(&alwaysOnTopWindow2);
+
+    expectedWindowOrder = { &alwaysOnTopWindow1, &alwaysOnTopWindow2, &m_window5,
+                            &m_window3,          &m_window1,          &m_root };
+    QVERIFY(std::equal(expectedWindowOrder.begin(), expectedWindowOrder.end(),
+                       getWindowsFrontToBack(&stack).begin()));
+    verifyWindowOrderChanged();
+    QCOMPARE(&alwaysOnTopWindow1, stack.topWindow());
+
+    // Window order: T2 T1 5 3 1 R
+    stack.lower(&alwaysOnTopWindow1);
+
+    expectedWindowOrder = { &alwaysOnTopWindow2, &alwaysOnTopWindow1, &m_window5,
+                            &m_window3,          &m_window1,          &m_root };
+    QVERIFY(std::equal(expectedWindowOrder.begin(), expectedWindowOrder.end(),
+                       getWindowsFrontToBack(&stack).begin()));
+    verifyWindowOrderChanged();
+    QCOMPARE(&alwaysOnTopWindow2, stack.topWindow());
+
+    // Window order: T2 T1 3 1 5 R
+    stack.lower(&m_window5);
+
+    expectedWindowOrder = { &alwaysOnTopWindow2, &alwaysOnTopWindow1, &m_window3,
+                            &m_window1,          &m_window5,          &m_root };
+    QVERIFY(std::equal(expectedWindowOrder.begin(), expectedWindowOrder.end(),
+                       getWindowsFrontToBack(&stack).begin()));
+    verifyWindowOrderChanged();
+    QCOMPARE(&alwaysOnTopWindow2, stack.topWindow());
+
+    // Window order: T2 T1 3 5 1 R
+    stack.lower(&m_window1);
+
+    expectedWindowOrder = { &alwaysOnTopWindow2, &alwaysOnTopWindow1, &m_window3,
+                            &m_window5,          &m_window1,          &m_root };
+    QVERIFY(std::equal(expectedWindowOrder.begin(), expectedWindowOrder.end(),
+                       getWindowsFrontToBack(&stack).begin()));
+    verifyWindowOrderChanged();
+    QCOMPARE(&alwaysOnTopWindow2, stack.topWindow());
+}
+
 void tst_QWasmWindowStack::removing()
 {
     QWasmWindowStack stack(m_mockCallback);
 
-    stack.pushWindow(&m_root);
-    stack.pushWindow(&m_window1);
-    stack.pushWindow(&m_window2);
-    stack.pushWindow(&m_window3);
-    stack.pushWindow(&m_window4);
-    stack.pushWindow(&m_window5);
+    stack.pushWindow(&m_root, QWasmWindowStack::PositionPreference::StayOnBottom);
+    stack.pushWindow(&m_window1, QWasmWindowStack::PositionPreference::Regular);
+    stack.pushWindow(&m_window2, QWasmWindowStack::PositionPreference::Regular);
+    stack.pushWindow(&m_window3, QWasmWindowStack::PositionPreference::Regular);
+    stack.pushWindow(&m_window4, QWasmWindowStack::PositionPreference::Regular);
+    stack.pushWindow(&m_window5, QWasmWindowStack::PositionPreference::Regular);
     // Window order: 5 4 3 2 1 R
 
     clearCallbackCounter();
@@ -192,62 +457,239 @@ void tst_QWasmWindowStack::removing()
     m_onTopLevelChangedAction = [this, &stack]() { QVERIFY(stack.topWindow() == &m_window4); };
     stack.removeWindow(&m_window5);
     // Window order: 4 3 2 1 R
-    verifyTopWindowChangedCalled();
+    verifyWindowOrderChanged();
     QCOMPARE(&m_window4, stack.topWindow());
 
     stack.removeWindow(&m_window2);
     // Window order: 4 3 1 R
-    verifyTopWindowChangedCalled(0);
+    verifyWindowOrderChanged();
     std::vector<QWasmWindow *> expectedWindowOrder = { &m_window4, &m_window3, &m_window1,
                                                        &m_root };
     QVERIFY(std::equal(expectedWindowOrder.begin(), expectedWindowOrder.end(),
                        getWindowsFrontToBack(&stack).begin()));
 }
 
-void tst_QWasmWindowStack::removingTheRoot()
+void tst_QWasmWindowStack::positionPreferenceChanges()
 {
     QWasmWindowStack stack(m_mockCallback);
 
-    stack.pushWindow(&m_root);
-    stack.pushWindow(&m_window1);
-    stack.pushWindow(&m_window2);
-    stack.pushWindow(&m_window3);
-    // Window order: 3 2 1 R
+    QWasmWindow window6;
+    QWasmWindow window7;
+    QWasmWindow window8;
+    QWasmWindow window9;
+
+    stack.pushWindow(&m_window1, QWasmWindowStack::PositionPreference::StayOnBottom);
+    stack.pushWindow(&m_window2, QWasmWindowStack::PositionPreference::StayOnBottom);
+    stack.pushWindow(&m_window3, QWasmWindowStack::PositionPreference::StayOnBottom);
+    stack.pushWindow(&m_window4, QWasmWindowStack::PositionPreference::Regular);
+    stack.pushWindow(&m_window5, QWasmWindowStack::PositionPreference::Regular);
+    stack.pushWindow(&window6, QWasmWindowStack::PositionPreference::Regular);
+    stack.pushWindow(&window7, QWasmWindowStack::PositionPreference::StayOnTop);
+    stack.pushWindow(&window8, QWasmWindowStack::PositionPreference::StayOnTop);
+    stack.pushWindow(&window9, QWasmWindowStack::PositionPreference::StayOnTop);
+
+    // Window order: 9 8 7 | 6 5 4 | 3 2 1
 
     clearCallbackCounter();
 
-    QCOMPARE(&m_window3, stack.topWindow());
-
-    stack.removeWindow(&m_root);
-    // Window order: 3 2 1
-    verifyTopWindowChangedCalled(0);
-    QCOMPARE(&m_window3, stack.topWindow());
-
-    m_onTopLevelChangedAction = [this, &stack]() { QVERIFY(stack.topWindow() == &m_window1); };
-    // Check that the new bottom window is not treated specially as a root
-    stack.raise(&m_window1);
-    // Window order: 1 3 2
-    verifyTopWindowChangedCalled();
-    std::vector<QWasmWindow *> expectedWindowOrder = { &m_window1, &m_window3, &m_window2 };
+    std::vector<QWasmWindow *> expectedWindowOrder = { &window9,   &window8,   &window7,
+                                                       &window6,   &m_window5, &m_window4,
+                                                       &m_window3, &m_window2, &m_window1 };
     QVERIFY(std::equal(expectedWindowOrder.begin(), expectedWindowOrder.end(),
                        getWindowsFrontToBack(&stack).begin()));
 
-    m_onTopLevelChangedAction = [this, &stack]() { QVERIFY(stack.topWindow() == &m_window3); };
-    // Check that the new bottom window is not treated specially as a root
-    stack.lower(&m_window1);
-    // Window order: 3 2 1
-    verifyTopWindowChangedCalled();
-    expectedWindowOrder = { &m_window3, &m_window2, &m_window1 };
+    // Window order: 9 8 7 1 | 6 5 4 | 3 2
+    stack.windowPositionPreferenceChanged(&m_window1,
+                                          QWasmWindowStack::PositionPreference::StayOnTop);
+
+    expectedWindowOrder = {
+        &window9,   &window8,   &window7,   &m_window1, &window6,
+        &m_window5, &m_window4, &m_window3, &m_window2,
+    };
     QVERIFY(std::equal(expectedWindowOrder.begin(), expectedWindowOrder.end(),
                        getWindowsFrontToBack(&stack).begin()));
+
+    // Window order: 9 8 7 1 5 | 6 4 | 3 2
+    stack.windowPositionPreferenceChanged(&m_window5,
+                                          QWasmWindowStack::PositionPreference::StayOnTop);
+
+    expectedWindowOrder = {
+        &window9, &window8,   &window7,   &m_window1, &m_window5,
+        &window6, &m_window4, &m_window3, &m_window2,
+    };
+    QVERIFY(std::equal(expectedWindowOrder.begin(), expectedWindowOrder.end(),
+                       getWindowsFrontToBack(&stack).begin()));
+
+    // Window order: 9 7 1 5 | 8 6 4 | 3 2
+    stack.windowPositionPreferenceChanged(&window8, QWasmWindowStack::PositionPreference::Regular);
+
+    expectedWindowOrder = {
+        &window9, &window7,   &m_window1, &m_window5, &window8,
+        &window6, &m_window4, &m_window3, &m_window2,
+    };
+    QVERIFY(std::equal(expectedWindowOrder.begin(), expectedWindowOrder.end(),
+                       getWindowsFrontToBack(&stack).begin()));
+
+    // Window order: 9 7 1 5 | 8 6 4 2 | 3
+    stack.windowPositionPreferenceChanged(&m_window2,
+                                          QWasmWindowStack::PositionPreference::Regular);
+
+    expectedWindowOrder = {
+        &window9, &window7,   &m_window1, &m_window5, &window8,
+        &window6, &m_window4, &m_window2, &m_window3,
+    };
+    QVERIFY(std::equal(expectedWindowOrder.begin(), expectedWindowOrder.end(),
+                       getWindowsFrontToBack(&stack).begin()));
+
+    // Window order: 7 1 5 | 8 6 4 2 | 9 3
+    stack.windowPositionPreferenceChanged(&window9,
+                                          QWasmWindowStack::PositionPreference::StayOnBottom);
+
+    expectedWindowOrder = {
+        &window7,   &m_window1, &m_window5, &window8,   &window6,
+        &m_window4, &m_window2, &window9,   &m_window3,
+    };
+    QVERIFY(std::equal(expectedWindowOrder.begin(), expectedWindowOrder.end(),
+                       getWindowsFrontToBack(&stack).begin()));
+
+    // Window order: 7 1 5 | 6 4 2 | 8 9 3
+    stack.windowPositionPreferenceChanged(&window8,
+                                          QWasmWindowStack::PositionPreference::StayOnBottom);
+
+    expectedWindowOrder = {
+        &window7,   &m_window1, &m_window5, &window6,   &m_window4,
+        &m_window2, &window8,   &window9,   &m_window3,
+    };
+    QVERIFY(std::equal(expectedWindowOrder.begin(), expectedWindowOrder.end(),
+                       getWindowsFrontToBack(&stack).begin()));
+}
+
+void tst_QWasmWindowStack::removingWithAlwaysOnBottom()
+{
+    QWasmWindowStack stack(m_mockCallback);
+
+    QWasmWindow alwaysOnBottomWindow1;
+    QWasmWindow alwaysOnBottomWindow2;
+    QWasmWindow alwaysOnBottomWindow3;
+
+    stack.pushWindow(&alwaysOnBottomWindow1, QWasmWindowStack::PositionPreference::StayOnBottom);
+    stack.pushWindow(&alwaysOnBottomWindow2, QWasmWindowStack::PositionPreference::StayOnBottom);
+    stack.pushWindow(&alwaysOnBottomWindow3, QWasmWindowStack::PositionPreference::StayOnBottom);
+    stack.pushWindow(&m_window1, QWasmWindowStack::PositionPreference::Regular);
+    stack.pushWindow(&m_window2, QWasmWindowStack::PositionPreference::Regular);
+    stack.pushWindow(&m_window3, QWasmWindowStack::PositionPreference::Regular);
+    // Window order: 3 2 1 | B3 B2 B1
+
+    clearCallbackCounter();
+
+    std::vector<QWasmWindow *> expectedWindowOrder = { &m_window3,
+                                                       &m_window2,
+                                                       &m_window1,
+                                                       &alwaysOnBottomWindow3,
+                                                       &alwaysOnBottomWindow2,
+                                                       &alwaysOnBottomWindow1 };
+    QVERIFY(std::equal(expectedWindowOrder.begin(), expectedWindowOrder.end(),
+                       getWindowsFrontToBack(&stack).begin()));
+    QCOMPARE(&m_window3, stack.topWindow());
+
+    // Window order: 3 1 | B3 B2 B1
+    stack.removeWindow(&m_window2);
+
+    expectedWindowOrder = { &m_window3, &m_window1, &alwaysOnBottomWindow3, &alwaysOnBottomWindow2,
+                            &alwaysOnBottomWindow1 };
+    QVERIFY(std::equal(expectedWindowOrder.begin(), expectedWindowOrder.end(),
+                       getWindowsFrontToBack(&stack).begin()));
+    verifyWindowOrderChanged();
+    QCOMPARE(&m_window3, stack.topWindow());
+
+    // Window order: 1 3 2 | B1 B3 B2
+    stack.removeWindow(&alwaysOnBottomWindow2);
+
+    expectedWindowOrder = { &m_window3, &m_window1, &alwaysOnBottomWindow3,
+                            &alwaysOnBottomWindow1 };
+    QVERIFY(std::equal(expectedWindowOrder.begin(), expectedWindowOrder.end(),
+                       getWindowsFrontToBack(&stack).begin()));
+    verifyWindowOrderChanged();
+    QCOMPARE(&m_window3, stack.topWindow());
+
+    // Window order: 1 3 2 | B3 B1 B2
+    stack.removeWindow(&alwaysOnBottomWindow1);
+
+    expectedWindowOrder = { &m_window3, &m_window1, &alwaysOnBottomWindow3 };
+    QVERIFY(std::equal(expectedWindowOrder.begin(), expectedWindowOrder.end(),
+                       getWindowsFrontToBack(&stack).begin()));
+    verifyWindowOrderChanged();
+    QCOMPARE(&m_window3, stack.topWindow());
+}
+
+void tst_QWasmWindowStack::removingWithAlwaysOnTop()
+{
+    QWasmWindowStack stack(m_mockCallback);
+
+    QWasmWindow alwaysOnTopWindow1;
+    QWasmWindow alwaysOnTopWindow2;
+
+    stack.pushWindow(&m_root, QWasmWindowStack::PositionPreference::StayOnBottom);
+    stack.pushWindow(&m_window1, QWasmWindowStack::PositionPreference::Regular);
+    stack.pushWindow(&alwaysOnTopWindow1, QWasmWindowStack::PositionPreference::StayOnTop);
+    stack.pushWindow(&m_window3, QWasmWindowStack::PositionPreference::Regular);
+    stack.pushWindow(&alwaysOnTopWindow2, QWasmWindowStack::PositionPreference::StayOnTop);
+    stack.pushWindow(&m_window5, QWasmWindowStack::PositionPreference::Regular);
+    // Window order: T2 T1 5 3 1 R
+
+    clearCallbackCounter();
+
+    std::vector<QWasmWindow *> expectedWindowOrder = { &alwaysOnTopWindow2, &alwaysOnTopWindow1,
+                                                       &m_window5,          &m_window3,
+                                                       &m_window1,          &m_root };
+    QVERIFY(std::equal(expectedWindowOrder.begin(), expectedWindowOrder.end(),
+                       getWindowsFrontToBack(&stack).begin()));
+
+    // Window order: T2 T1 5 1 R
+    stack.removeWindow(&m_window3);
+    verifyWindowOrderChanged();
+
+    expectedWindowOrder = { &alwaysOnTopWindow2, &alwaysOnTopWindow1, &m_window5, &m_window1,
+                            &m_root };
+    QVERIFY(std::equal(expectedWindowOrder.begin(), expectedWindowOrder.end(),
+                       getWindowsFrontToBack(&stack).begin()));
+
+    // Window order: T2 5 1 R
+    stack.removeWindow(&alwaysOnTopWindow1);
+    verifyWindowOrderChanged();
+
+    expectedWindowOrder = { &alwaysOnTopWindow2, &m_window5, &m_window1, &m_root };
+    QVERIFY(std::equal(expectedWindowOrder.begin(), expectedWindowOrder.end(),
+                       getWindowsFrontToBack(&stack).begin()));
+
+    // Window order: T2 1 R
+    stack.removeWindow(&m_window5);
+    verifyWindowOrderChanged();
+
+    expectedWindowOrder = { &alwaysOnTopWindow2, &m_window1, &m_root };
+    QVERIFY(std::equal(expectedWindowOrder.begin(), expectedWindowOrder.end(),
+                       getWindowsFrontToBack(&stack).begin()));
+
+    // Window order: T2 R
+    stack.removeWindow(&m_window1);
+    verifyWindowOrderChanged();
+
+    expectedWindowOrder = { &alwaysOnTopWindow2, &m_root };
+    QVERIFY(std::equal(expectedWindowOrder.begin(), expectedWindowOrder.end(),
+                       getWindowsFrontToBack(&stack).begin()));
+
+    // Window order: R
+    stack.removeWindow(&alwaysOnTopWindow2);
+    verifyWindowOrderChanged();
+    QCOMPARE(&m_root, stack.topWindow());
 }
 
 void tst_QWasmWindowStack::clearing()
 {
     QWasmWindowStack stack(m_mockCallback);
 
-    stack.pushWindow(&m_root);
-    stack.pushWindow(&m_window1);
+    stack.pushWindow(&m_root, QWasmWindowStack::PositionPreference::StayOnBottom);
+    stack.pushWindow(&m_window1, QWasmWindowStack::PositionPreference::Regular);
     // Window order: 1 R
 
     clearCallbackCounter();
@@ -257,13 +699,13 @@ void tst_QWasmWindowStack::clearing()
     m_onTopLevelChangedAction = [this, &stack]() { QVERIFY(stack.topWindow() == &m_root); };
     stack.removeWindow(&m_window1);
     // Window order: R
-    verifyTopWindowChangedCalled();
+    verifyWindowOrderChanged();
     QCOMPARE(&m_root, stack.topWindow());
 
     m_onTopLevelChangedAction = [&stack]() { QVERIFY(stack.topWindow() == nullptr); };
     stack.removeWindow(&m_root);
     // Window order: <empty>
-    verifyTopWindowChangedCalled();
+    verifyWindowOrderChanged();
     QCOMPARE(nullptr, stack.topWindow());
     QCOMPARE(0u, stack.size());
 }
diff --git a/tests/auto/widgets/dialogs/qmessagebox/tst_qmessagebox.cpp b/tests/auto/widgets/dialogs/qmessagebox/tst_qmessagebox.cpp
index 564c832c..79b55c31 100644
--- a/tests/auto/widgets/dialogs/qmessagebox/tst_qmessagebox.cpp
+++ b/tests/auto/widgets/dialogs/qmessagebox/tst_qmessagebox.cpp
@@ -38,6 +38,9 @@ private slots:
     void detailsButtonText();
     void expandDetailsWithoutMoving();
 
+    void optionsEmptyByDefault();
+    void changeNativeOption();
+
 #ifndef Q_OS_MAC
     void shortcut();
 #endif
@@ -627,6 +630,20 @@ void tst_QMessageBox::expandDetailsWithoutMoving() // QTBUG-32473
     QCOMPARE(box.geometry().topLeft(), geom.topLeft());
 }
 
+void tst_QMessageBox::optionsEmptyByDefault()
+{
+    QMessageBox b;
+    QCOMPARE(b.options(), QMessageBox::Options());
+    QVERIFY(!b.testOption(QMessageBox::Option::DontUseNativeDialog));
+}
+
+void tst_QMessageBox::changeNativeOption()
+{
+    QMessageBox b;
+    b.setOption(QMessageBox::Option::DontUseNativeDialog);
+    QCOMPARE(b.options(), QMessageBox::Options(QMessageBox::Option::DontUseNativeDialog));
+}
+
 void tst_QMessageBox::incorrectDefaultButton()
 {
     ExecCloseHelper closeHelper;
diff --git a/tests/auto/widgets/dialogs/qprogressdialog/tst_qprogressdialog.cpp b/tests/auto/widgets/dialogs/qprogressdialog/tst_qprogressdialog.cpp
index 12ab1201..38a777ca 100644
--- a/tests/auto/widgets/dialogs/qprogressdialog/tst_qprogressdialog.cpp
+++ b/tests/auto/widgets/dialogs/qprogressdialog/tst_qprogressdialog.cpp
@@ -84,7 +84,7 @@ void tst_QProgressDialog::autoShow()
                  // in order to test for the setValue() behavior instead
                  // See autoShowCtor() for the ctor timer check
     dlg.setValue(value);
-    QThread::msleep(delay);
+    QThread::sleep(std::chrono::milliseconds{delay});
     dlg.setValue(min+1);
     QCOMPARE(dlg.isVisible(), expectedAutoShow);
 }
@@ -93,7 +93,7 @@ void tst_QProgressDialog::autoShowCtor()
 {
     QProgressDialog dlg;
     QVERIFY(!dlg.isVisible());
-    QThread::msleep(dlg.minimumDuration());
+    QThread::sleep(std::chrono::milliseconds{dlg.minimumDuration()});
     QTRY_VERIFY(dlg.isVisible());
 }
 
@@ -181,7 +181,7 @@ void tst_QProgressDialog::QTBUG_31046()
 {
     QProgressDialog dlg("", "", 50, 60);
     dlg.setValue(0);
-    QThread::msleep(200);
+    QThread::sleep(std::chrono::milliseconds{200});
     dlg.setValue(50);
     QCOMPARE(50, dlg.value());
 }
diff --git a/tests/auto/widgets/itemviews/qtableview/tst_qtableview.cpp b/tests/auto/widgets/itemviews/qtableview/tst_qtableview.cpp
index 85960fce..2e59ac29 100644
--- a/tests/auto/widgets/itemviews/qtableview/tst_qtableview.cpp
+++ b/tests/auto/widgets/itemviews/qtableview/tst_qtableview.cpp
@@ -4873,7 +4873,7 @@ void tst_QTableView::selectWithHeader()
 
     QVERIFY(QTest::qWaitForWindowExposed(&view));
 
-    QHeaderView *header;
+    QHeaderView *header = nullptr;
     QPoint clickPos;
     QModelIndex lastIndex;
 
diff --git a/tests/auto/widgets/kernel/qwidget/tst_qwidget.cpp b/tests/auto/widgets/kernel/qwidget/tst_qwidget.cpp
index 45cc5686..54920687 100644
--- a/tests/auto/widgets/kernel/qwidget/tst_qwidget.cpp
+++ b/tests/auto/widgets/kernel/qwidget/tst_qwidget.cpp
@@ -174,6 +174,7 @@ private slots:
     void appFocusWidgetWhenLosingFocusProxy();
     void explicitTabOrderWithComplexWidget();
     void explicitTabOrderWithSpinBox_QTBUG81097();
+    void tabOrderList();
     void tabOrderComboBox_data();
     void tabOrderComboBox();
 #if defined(Q_OS_WIN)
@@ -1932,6 +1933,26 @@ public:
     QLineEdit *lineEdit3;
 };
 
+static QList<QWidget *> getFocusChain(QWidget *start, bool bForward)
+{
+    QList<QWidget *> ret;
+    QWidget *cur = start;
+    // detect infinite loop
+    int count = 100;
+    auto loopGuard = qScopeGuard([]{
+        QFAIL("Inifinite loop detected in focus chain");
+    });
+    do {
+        ret += cur;
+        auto widgetPrivate = static_cast<QWidgetPrivate *>(qt_widget_private(cur));
+        cur = bForward ? widgetPrivate->focus_next : widgetPrivate->focus_prev;
+        if (!--count)
+            return ret;
+    } while (cur != start);
+    loopGuard.dismiss();
+    return ret;
+}
+
 void tst_QWidget::defaultTabOrder()
 {
     if (QGuiApplication::platformName().startsWith(QLatin1String("wayland"), Qt::CaseInsensitive))
@@ -2051,6 +2072,17 @@ void tst_QWidget::reverseTabOrder()
     QVERIFY(firstEdit->hasFocus());
 }
 
+void tst_QWidget::tabOrderList()
+{
+    Composite c;
+    QCOMPARE(getFocusChain(&c, true),
+             QList<QWidget *>({&c, c.lineEdit1, c.lineEdit2, c.lineEdit3}));
+    QWidget::setTabOrder({c.lineEdit3, c.lineEdit2, c.lineEdit1});
+    // not starting with 3 like one would maybe expect, but still 3, 2, 1
+    QCOMPARE(getFocusChain(&c, true),
+             QList<QWidget *>({&c, c.lineEdit1, c.lineEdit3, c.lineEdit2}));
+}
+
 void tst_QWidget::tabOrderComboBox_data()
 {
     QTest::addColumn<const bool>("editableAtBeginning");
@@ -2061,26 +2093,6 @@ void tst_QWidget::tabOrderComboBox_data()
     QTest::addRow("4 editable") << true << QList<int>{2, 1, 0, 3} << QList<int>{3, 0, 2, 1};
 }
 
-static QList<QWidget *> getFocusChain(QWidget *start, bool bForward)
-{
-    QList<QWidget *> ret;
-    QWidget *cur = start;
-    // detect infinite loop
-    int count = 100;
-    auto loopGuard = qScopeGuard([]{
-        QFAIL("Inifinite loop detected in focus chain");
-    });
-    do {
-        ret += cur;
-        auto widgetPrivate = static_cast<QWidgetPrivate *>(qt_widget_private(cur));
-        cur = bForward ? widgetPrivate->focus_next : widgetPrivate->focus_prev;
-        if (!--count)
-            return ret;
-    } while (cur != start);
-    loopGuard.dismiss();
-    return ret;
-}
-
 QWidgetList expectedFocusChain(const QList<QComboBox *> &boxes, const QList<int> &sequence)
 {
     Q_ASSERT(boxes.count() == sequence.count());
@@ -2132,6 +2144,7 @@ void tst_QWidget::tabOrderComboBox()
     QFETCH(const QList<int>, secondTabOrder);
     const int count = firstTabOrder.count();
     Q_ASSERT(count == secondTabOrder.count());
+    Q_ASSERT(count > 1);
 
     QWidget w;
     w.setObjectName("MainWidget");
@@ -2164,6 +2177,31 @@ void tst_QWidget::tabOrderComboBox()
 
     COMPARE(secondTabOrder);
 
+    // Remove the focus proxy of the first combobox's line edit.
+    QComboBox *box = boxes.at(0);
+    QLineEdit *lineEdit = box->lineEdit();
+    QWidgetPrivate *lePriv = QWidgetPrivate::get(lineEdit);
+    const QWidget *prev = lePriv->focus_prev;
+    const QWidget *next = lePriv->focus_next;
+    const QWidget *proxy = lePriv->extra->focus_proxy;
+    QCOMPARE(proxy, box);
+    lineEdit->setFocusProxy(nullptr);
+    QCOMPARE(lePriv->extra->focus_proxy, nullptr);
+    QCOMPARE(lePriv->focus_prev, prev);
+    QCOMPARE(lePriv->focus_next, next);
+
+    // Remove first item and check chain consistency
+    boxes.removeFirst();
+    delete box;
+
+    // Create new list with 0 removed and other indexes updated
+    QList<int> thirdTabOrder(secondTabOrder);
+    thirdTabOrder.removeIf([](int i){ return i == 0; });
+    for (int &i : thirdTabOrder)
+        --i;
+
+    COMPARE(thirdTabOrder);
+
 #undef COMPARE
 }
 
@@ -2557,9 +2595,9 @@ void tst_QWidget::tabOrderWithCompoundWidgetsInflection()
         qCritical() << " Actual  :" << forwardChain;
         qCritical() << " Expected:" << expectedFocusChain;
     });
-    for (qsizetype i = 0; i < expectedFocusChain.size() - 2; ++i) {
-        QVERIFY(forwardChain.indexOf(expectedFocusChain.at(i)) <
-                forwardChain.indexOf(expectedFocusChain.at(i + 1)));
+        for (qsizetype i = 0; i < expectedFocusChain.size() - 2; ++i) {
+        QCOMPARE_LT(forwardChain.indexOf(expectedFocusChain.at(i)),
+                    forwardChain.indexOf(expectedFocusChain.at(i + 1)));
     }
     logger.dismiss();
 }
diff --git a/tests/auto/widgets/styles/qstylesheetstyle/tst_qstylesheetstyle.cpp b/tests/auto/widgets/styles/qstylesheetstyle/tst_qstylesheetstyle.cpp
index 33569490..eec890fa 100644
--- a/tests/auto/widgets/styles/qstylesheetstyle/tst_qstylesheetstyle.cpp
+++ b/tests/auto/widgets/styles/qstylesheetstyle/tst_qstylesheetstyle.cpp
@@ -107,6 +107,7 @@ private slots:
     void QTBUG36933_brokenPseudoClassLookup();
     void styleSheetChangeBeforePolish();
     void placeholderColor();
+    void accent();
     void enumPropertySelector_data();
     void enumPropertySelector();
     //at the end because it mess with the style.
@@ -2405,6 +2406,15 @@ void tst_QStyleSheetStyle::placeholderColor()
     QCOMPARE(le1.palette().placeholderText().color(), QColor(phSpec));
 }
 
+void tst_QStyleSheetStyle::accent()
+{
+    QLineEdit lineEdit;
+    const QColor universe(42, 42, 42);
+    lineEdit.setStyleSheet(QString("QLineEdit { accent-color: %1; }").arg(universe.name()));
+    lineEdit.ensurePolished();
+    QCOMPARE(lineEdit.palette().accent().color(), universe);
+}
+
 void tst_QStyleSheetStyle::enumPropertySelector_data()
 {
     QTest::addColumn<QString>("styleSheet");
diff --git a/tests/auto/widgets/widgets/qcalendarwidget/tst_qcalendarwidget.cpp b/tests/auto/widgets/widgets/qcalendarwidget/tst_qcalendarwidget.cpp
index 31da429a..2fd9d1b4 100644
--- a/tests/auto/widgets/widgets/qcalendarwidget/tst_qcalendarwidget.cpp
+++ b/tests/auto/widgets/widgets/qcalendarwidget/tst_qcalendarwidget.cpp
@@ -110,11 +110,19 @@ void tst_QCalendarWidget::getSetCheck()
     object.setSelectedDate(selectedDate);
     QCOMPARE(minDate, object.selectedDate());
     QVERIFY(selectedDate != object.selectedDate());
+    object.clearMinimumDate();
+    object.setSelectedDate(selectedDate);
+    QCOMPARE(selectedDate, object.selectedDate());
+
     //date should not go beyond the maximum.
     selectedDate = maxDate.addDays(10);
     object.setSelectedDate(selectedDate);
     QCOMPARE(maxDate, object.selectedDate());
     QVERIFY(selectedDate != object.selectedDate());
+    object.clearMaximumDate();
+    object.setSelectedDate(selectedDate);
+    QCOMPARE(selectedDate, object.selectedDate());
+
     //show today
     QDate today = QDate::currentDate();
     object.showToday();
diff --git a/tests/auto/widgets/widgets/qcheckbox/tst_qcheckbox.cpp b/tests/auto/widgets/widgets/qcheckbox/tst_qcheckbox.cpp
index 7a54a6e5..9055b139 100644
--- a/tests/auto/widgets/widgets/qcheckbox/tst_qcheckbox.cpp
+++ b/tests/auto/widgets/widgets/qcheckbox/tst_qcheckbox.cpp
@@ -191,24 +191,29 @@ void tst_QCheckBox::toggled()
 void tst_QCheckBox::stateChanged()
 {
     QCheckBox testWidget;
-    int cur_state = -1;
+    QCOMPARE(testWidget.checkState(), Qt::Unchecked);
+
+    Qt::CheckState cur_state = Qt::Unchecked;
     QSignalSpy stateChangedSpy(&testWidget, &QCheckBox::stateChanged);
-    connect(&testWidget, &QCheckBox::stateChanged, this, [&](int state) { ++cur_state = state; });
+    connect(&testWidget, &QCheckBox::stateChanged, this, [&](auto state) { cur_state = Qt::CheckState(state); });
     testWidget.setChecked(true);
-    QCoreApplication::processEvents();
-    QCOMPARE(cur_state, 2);
+    QVERIFY(QTest::qWaitFor([&]() { return stateChangedSpy.size() == 1; }));
+    QCOMPARE(stateChangedSpy.size(), 1);
+    QCOMPARE(cur_state, Qt::Checked);
+    QCOMPARE(testWidget.checkState(), Qt::Checked);
 
-    cur_state = -1;
     testWidget.setChecked(false);
-    QCoreApplication::processEvents();
-    QCOMPARE(cur_state, 0);
+    QVERIFY(QTest::qWaitFor([&]() { return stateChangedSpy.size() == 2; }));
+    QCOMPARE(stateChangedSpy.size(), 2);
+    QCOMPARE(cur_state, Qt::Unchecked);
+    QCOMPARE(testWidget.checkState(), Qt::Unchecked);
 
-    cur_state = -1;
     testWidget.setCheckState(Qt::PartiallyChecked);
-    QCoreApplication::processEvents();
-    QCOMPARE(cur_state, 1);
-
+    QVERIFY(QTest::qWaitFor([&]() { return stateChangedSpy.size() == 3; }));
     QCOMPARE(stateChangedSpy.size(), 3);
+    QCOMPARE(cur_state, Qt::PartiallyChecked);
+    QCOMPARE(testWidget.checkState(), Qt::PartiallyChecked);
+
     testWidget.setCheckState(Qt::PartiallyChecked);
     QCoreApplication::processEvents();
     QCOMPARE(stateChangedSpy.size(), 3);
diff --git a/tests/auto/widgets/widgets/qcombobox/tst_qcombobox.cpp b/tests/auto/widgets/widgets/qcombobox/tst_qcombobox.cpp
index eda098ef..cb4a99e3 100644
--- a/tests/auto/widgets/widgets/qcombobox/tst_qcombobox.cpp
+++ b/tests/auto/widgets/widgets/qcombobox/tst_qcombobox.cpp
@@ -1505,42 +1505,70 @@ void tst_QComboBox::currentTextChanged()
     testWidget->addItems(QStringList() << "foo" << "bar");
     QCOMPARE(testWidget->count(), 2);
 
-    QSignalSpy spy(testWidget, SIGNAL(currentTextChanged(QString)));
+    QSignalSpy textChangedSpy(testWidget, &QComboBox::currentTextChanged);
 
     testWidget->setEditable(editable);
 
     // set text in list
     testWidget->setCurrentIndex(0);
     QCOMPARE(testWidget->currentIndex(), 0);
-    spy.clear();
+    textChangedSpy.clear();
     testWidget->setCurrentText(QString("bar"));
-    QCOMPARE(spy.size(), 1);
-    QCOMPARE(qvariant_cast<QString>(spy.at(0).at(0)), QString("bar"));
+    QCOMPARE(textChangedSpy.size(), 1);
+    QCOMPARE(qvariant_cast<QString>(textChangedSpy.at(0).at(0)), QString("bar"));
 
     // set text not in list
     testWidget->setCurrentIndex(0);
     QCOMPARE(testWidget->currentIndex(), 0);
-    spy.clear();
+    textChangedSpy.clear();
     testWidget->setCurrentText(QString("qt"));
     if (editable) {
-        QCOMPARE(spy.size(), 1);
-        QCOMPARE(qvariant_cast<QString>(spy.at(0).at(0)), QString("qt"));
+        QCOMPARE(textChangedSpy.size(), 1);
+        QCOMPARE(qvariant_cast<QString>(textChangedSpy.at(0).at(0)), QString("qt"));
     } else {
-        QCOMPARE(spy.size(), 0);
+        QCOMPARE(textChangedSpy.size(), 0);
     }
 
     // item changed
     testWidget->setCurrentIndex(0);
     QCOMPARE(testWidget->currentIndex(), 0);
-    spy.clear();
+    textChangedSpy.clear();
     testWidget->setItemText(0, QString("ape"));
-    QCOMPARE(spy.size(), 1);
-    QCOMPARE(qvariant_cast<QString>(spy.at(0).at(0)), QString("ape"));
+    QCOMPARE(textChangedSpy.size(), 1);
+    QCOMPARE(qvariant_cast<QString>(textChangedSpy.at(0).at(0)), QString("ape"));
+
     // change it back
-    spy.clear();
+    textChangedSpy.clear();
     testWidget->setItemText(0, QString("foo"));
-    QCOMPARE(spy.size(), 1);
-    QCOMPARE(qvariant_cast<QString>(spy.at(0).at(0)), QString("foo"));
+    QCOMPARE(textChangedSpy.size(), 1);
+    QCOMPARE(qvariant_cast<QString>(textChangedSpy.at(0).at(0)), QString("foo"));
+
+    // currentIndexChanged vs. currentTextChanged
+    testWidget->clear();
+    testWidget->addItems(QStringList() << "first" << "second" << "third" << "fourth" << "fourth");
+    testWidget->setCurrentIndex(4);
+    textChangedSpy.clear();
+    QSignalSpy indexChangedSpy(testWidget, &QComboBox::currentIndexChanged);
+
+    // Index change w/o text change
+    testWidget->removeItem(3);
+    QCOMPARE(textChangedSpy.count(), 0);
+    QCOMPARE(indexChangedSpy.count(), 1);
+
+    // Index and text change
+    testWidget->setCurrentIndex(0);
+    QCOMPARE(textChangedSpy.count(), 1);
+    QCOMPARE(indexChangedSpy.count(), 2);
+
+    // remove item above current index
+    testWidget->removeItem(2);
+    QCOMPARE(textChangedSpy.count(), 1);
+    QCOMPARE(indexChangedSpy.count(), 2);
+
+    // Text change w/o index change
+    testWidget->setItemText(0, "first class");
+    QCOMPARE(textChangedSpy.count(), 2);
+    QCOMPARE(indexChangedSpy.count(), 2);
 }
 
 void tst_QComboBox::editTextChanged()
diff --git a/tests/auto/widgets/widgets/qlineedit/tst_qlineedit.cpp b/tests/auto/widgets/widgets/qlineedit/tst_qlineedit.cpp
index 2c6dd1b6..845b6054 100644
--- a/tests/auto/widgets/widgets/qlineedit/tst_qlineedit.cpp
+++ b/tests/auto/widgets/widgets/qlineedit/tst_qlineedit.cpp
@@ -267,6 +267,8 @@ private slots:
     void inputMethodQueryImHints_data();
     void inputMethodQueryImHints();
 
+    void inputMethodQueryEnterKeyType();
+
     void inputMethodUpdate();
 
     void undoRedoAndEchoModes_data();
@@ -4441,6 +4443,33 @@ void tst_QLineEdit::inputMethodQueryImHints()
     QCOMPARE(static_cast<Qt::InputMethodHints>(value.toInt()), hints);
 }
 
+void tst_QLineEdit::inputMethodQueryEnterKeyType()
+{
+    QWidget mw;
+    QVBoxLayout layout(&mw);
+    QLineEdit le1(&mw);
+    layout.addWidget(&le1);
+    mw.show();
+    QVariant enterType = le1.inputMethodQuery(Qt::ImEnterKeyType);
+    QCOMPARE(enterType.value<Qt::EnterKeyType>(), Qt::EnterKeyDefault);
+
+    mw.hide();
+    QLineEdit le2(&mw);
+    layout.addWidget(&le2);
+    mw.show();
+
+    enterType = le1.inputMethodQuery(Qt::ImEnterKeyType);
+#ifdef Q_OS_ANDROID
+    // QTBUG-61652
+    // EnterKey is changed to EnterKeyNext if the focus can be moved to widget below
+    QCOMPARE(enterType.value<Qt::EnterKeyType>(), Qt::EnterKeyNext);
+#else
+    QCOMPARE(enterType.value<Qt::EnterKeyType>(), Qt::EnterKeyDefault);
+#endif
+    enterType = le2.inputMethodQuery(Qt::ImEnterKeyType);
+    QCOMPARE(enterType.value<Qt::EnterKeyType>(), Qt::EnterKeyDefault);
+}
+
 void tst_QLineEdit::inputMethodUpdate()
 {
     if (QGuiApplication::platformName().startsWith(QLatin1String("wayland"), Qt::CaseInsensitive))
diff --git a/tests/auto/widgets/widgets/qmenu/BLACKLIST b/tests/auto/widgets/widgets/qmenu/BLACKLIST
index dc1ab8dd..88484ddf 100644
--- a/tests/auto/widgets/widgets/qmenu/BLACKLIST
+++ b/tests/auto/widgets/widgets/qmenu/BLACKLIST
@@ -16,6 +16,7 @@ android
 android
 [pushButtonPopulateOnAboutToShow]
 android
+wayland
 [QTBUG8122_widgetActionCrashOnClose]
 android
 [click_while_dismissing_submenu]
diff --git a/tests/auto/widgets/widgets/qmenu/tst_qmenu.cpp b/tests/auto/widgets/widgets/qmenu/tst_qmenu.cpp
index 09f76a2e..e031cca3 100644
--- a/tests/auto/widgets/widgets/qmenu/tst_qmenu.cpp
+++ b/tests/auto/widgets/widgets/qmenu/tst_qmenu.cpp
@@ -1146,14 +1146,18 @@ void tst_QMenu::pushButtonPopulateOnAboutToShow()
         QSKIP("Your window manager won't allow a window against the bottom of the screen");
     }
 
-    QTimer::singleShot(300, buttonMenu, SLOT(hide()));
     QTest::mouseClick(&b, Qt::LeftButton, Qt::NoModifier, b.rect().center());
+    QVERIFY(QTest::qWaitForWindowExposed(buttonMenu));
+    QTest::qWait(300);
+    buttonMenu->hide();
     QVERIFY2(!buttonMenu->geometry().intersects(b.geometry()), msgGeometryIntersects(buttonMenu->geometry(), b.geometry()));
 
     // note: we're assuming that, if we previously got the desired geometry, we'll get it here too
     b.move(10, screen.bottom()-buttonMenu->height()-5);
-    QTimer::singleShot(300, buttonMenu, SLOT(hide()));
     QTest::mouseClick(&b, Qt::LeftButton, Qt::NoModifier, b.rect().center());
+    QVERIFY(QTest::qWaitForWindowExposed(buttonMenu));
+    QTest::qWait(300);
+    buttonMenu->hide();
     QVERIFY2(!buttonMenu->geometry().intersects(b.geometry()), msgGeometryIntersects(buttonMenu->geometry(), b.geometry()));
 }
 
diff --git a/tests/auto/widgets/widgets/qopenglwidget/tst_qopenglwidget.cpp b/tests/auto/widgets/widgets/qopenglwidget/tst_qopenglwidget.cpp
index b95f2b52..bd0b62f3 100644
--- a/tests/auto/widgets/widgets/qopenglwidget/tst_qopenglwidget.cpp
+++ b/tests/auto/widgets/widgets/qopenglwidget/tst_qopenglwidget.cpp
@@ -4,6 +4,7 @@
 #include <QtOpenGLWidgets/QOpenGLWidget>
 #include <QtGui/QOpenGLFunctions>
 #include <QtGui/QPainter>
+#include <QtGui/QBackingStore>
 #include <QtGui/QScreen>
 #include <QtGui/QStaticText>
 #include <QtWidgets/QGraphicsView>
@@ -21,7 +22,9 @@
 #include <private/qopengltextureglyphcache_p.h>
 #include <qpa/qplatformintegration.h>
 #include <private/qguiapplication_p.h>
+#include <qpa/qplatformbackingstore.h>
 #include <qpa/qplatformintegration.h>
+#include <rhi/qrhi.h>
 
 class tst_QOpenGLWidget : public QObject
 {
@@ -33,6 +36,9 @@ private slots:
     void clearAndGrab();
     void clearAndResizeAndGrab();
     void createNonTopLevel();
+#if QT_CONFIG(egl)
+    void deviceLoss();
+#endif
     void painter();
     void reparentToAlreadyCreated();
     void reparentToNotYetCreated();
@@ -189,6 +195,45 @@ void tst_QOpenGLWidget::createNonTopLevel()
     QVERIFY(QOpenGLContext::currentContext() == glw->context() && glw->context());
 }
 
+#if QT_CONFIG(egl)
+void tst_QOpenGLWidget::deviceLoss()
+{
+    QScopedPointer<QOpenGLWidget> w(new ClearWidget(0, 640, 480));
+
+    w->resize(640, 480);
+    w->show();
+
+    auto rhi = w->backingStore()->handle()->rhi();
+    QNativeInterface::QEGLContext *rhiContext = nullptr;
+    if (rhi->backend() == QRhi::OpenGLES2) {
+        auto rhiHandles = static_cast<const QRhiGles2NativeHandles *>(rhi->nativeHandles());
+        rhiContext = rhiHandles->context->nativeInterface<QNativeInterface::QEGLContext>();
+    }
+    if (!rhiContext)
+        QSKIP("deviceLoss needs EGL");
+
+    QVERIFY(QTest::qWaitForWindowExposed(w.data()));
+
+    QImage image = w->grabFramebuffer();
+    QVERIFY(!image.isNull());
+    QCOMPARE(image.width(), w->width());
+    QCOMPARE(image.height(), w->height());
+    QVERIFY(image.pixel(30, 40) == qRgb(255, 0, 0));
+
+    rhiContext->invalidateContext();
+
+    w->resize(600, 600);
+    QSignalSpy frameSwappedSpy(w.get(), &QOpenGLWidget::resized);
+    QTRY_VERIFY(frameSwappedSpy.size() > 0);
+
+    image = w->grabFramebuffer();
+    QVERIFY(!image.isNull());
+    QCOMPARE(image.width(), w->width());
+    QCOMPARE(image.height(), w->height());
+    QVERIFY(image.pixel(30, 40) == qRgb(255, 0, 0));
+}
+#endif
+
 class PainterWidget : public QOpenGLWidget, protected QOpenGLFunctions
 {
 public:
diff --git a/tests/auto/widgets/widgets/qplaintextedit/tst_qplaintextedit.cpp b/tests/auto/widgets/widgets/qplaintextedit/tst_qplaintextedit.cpp
index 37f869bb..ffcb3571 100644
--- a/tests/auto/widgets/widgets/qplaintextedit/tst_qplaintextedit.cpp
+++ b/tests/auto/widgets/widgets/qplaintextedit/tst_qplaintextedit.cpp
@@ -1829,7 +1829,7 @@ void tst_QPlainTextEdit::placeholderVisibility_data()
     QTest::addColumn<QList<SetupCommand>>("setupCommands");
     QTest::addColumn<bool>("placeholderVisible");
     QTest::addRow("no placeholder set + no text set")
-            << QList<SetupCommand>{} << true;
+            << QList<SetupCommand>{} << false;
     QTest::addRow("no placeholder set + text set or text set + no placeholder set")
             << QList<SetupCommand>{ SetContent } << false;
     QTest::addRow("no placeholder set + text set + empty text set")
@@ -1839,7 +1839,7 @@ void tst_QPlainTextEdit::placeholderVisibility_data()
             << QList<SetupCommand>{ ClearContent, SetContent }
             << false;
     QTest::addRow("empty placeholder set + no text set")
-            << QList<SetupCommand>{ ClearPlaceHolder } << true;
+            << QList<SetupCommand>{ ClearPlaceHolder } << false;
     QTest::addRow("empty placeholder set + text set")
             << QList<SetupCommand>{ ClearPlaceHolder, SetContent }
             << false;
@@ -1916,7 +1916,7 @@ void tst_QPlainTextEdit::placeholderVisibility()
 
     plainTextEdit.show();
     QVERIFY(QTest::qWaitForWindowExposed(&plainTextEdit));
-    QTRY_VERIFY(plainTextEdit_d->placeholderVisible == placeholderVisible);
+    QTRY_VERIFY(plainTextEdit_d->isPlaceHolderTextVisible() == placeholderVisible);
 }
 
 
diff --git a/tests/auto/widgets/widgets/qpushbutton/tst_qpushbutton.cpp b/tests/auto/widgets/widgets/qpushbutton/tst_qpushbutton.cpp
index 11cac837..8acbfeb6 100644
--- a/tests/auto/widgets/widgets/qpushbutton/tst_qpushbutton.cpp
+++ b/tests/auto/widgets/widgets/qpushbutton/tst_qpushbutton.cpp
@@ -58,16 +58,15 @@ private slots:
 protected slots:
     void resetCounters();
     void onClicked();
-    void onToggled( bool on );
+    void onToggled(bool on);
     void onPressed();
     void onReleased();
-    void helperSlotDelete();
 
 private:
-    uint click_count;
-    uint toggle_count;
-    uint press_count;
-    uint release_count;
+    int click_count;
+    int toggle_count;
+    int press_count;
+    int release_count;
 
     QPushButton *testWidget;
     QPointingDevice *m_touchScreen = QTest::createTouchDevice();
@@ -82,40 +81,40 @@ void tst_QPushButton::getSetCheck()
     QMenu *var1 = new QMenu;
     obj1.setMenu(var1);
     QCOMPARE(var1, obj1.menu());
-    obj1.setMenu((QMenu *)0);
-    QCOMPARE((QMenu *)0, obj1.menu());
+    obj1.setMenu(nullptr);
+    QCOMPARE(obj1.menu(), nullptr);
     delete var1;
 }
 
 void tst_QPushButton::initTestCase()
 {
     // Create the test class
-    testWidget = new QPushButton( "&Start", 0 );
+    testWidget = new QPushButton("&Start", 0);
     testWidget->setObjectName("testWidget");
-    testWidget->resize( 200, 200 );
+    testWidget->resize(200, 200);
     testWidget->show();
 
-    connect( testWidget, SIGNAL(clicked()), this, SLOT(onClicked()) );
-    connect( testWidget, SIGNAL(pressed()), this, SLOT(onPressed()) );
-    connect( testWidget, SIGNAL(released()), this, SLOT(onReleased()) );
-    connect( testWidget, SIGNAL(toggled(bool)), this, SLOT(onToggled(bool)) );
+    connect(testWidget, SIGNAL(clicked()), this, SLOT(onClicked()));
+    connect(testWidget, SIGNAL(pressed()), this, SLOT(onPressed()));
+    connect(testWidget, SIGNAL(released()), this, SLOT(onReleased()));
+    connect(testWidget, SIGNAL(toggled(bool)), this, SLOT(onToggled(bool)));
 }
 
 void tst_QPushButton::cleanupTestCase()
 {
     delete testWidget;
-    testWidget = 0;
+    testWidget = nullptr;
 }
 
 void tst_QPushButton::init()
 {
-    testWidget->setAutoRepeat( false );
-    testWidget->setDown( false );
+    testWidget->setAutoRepeat(false);
+    testWidget->setDown(false);
     testWidget->setText("Test");
-    testWidget->setEnabled( true );
+    testWidget->setEnabled(true);
 #if QT_CONFIG(shortcut)
     QKeySequence seq;
-    testWidget->setShortcut( seq );
+    testWidget->setShortcut(seq);
 #endif
 
     resetCounters();
@@ -134,7 +133,7 @@ void tst_QPushButton::onClicked()
     click_count++;
 }
 
-void tst_QPushButton::onToggled( bool /*on*/ )
+void tst_QPushButton::onToggled(bool /*on*/)
 {
     toggle_count++;
 }
@@ -152,46 +151,46 @@ void tst_QPushButton::onReleased()
 void tst_QPushButton::autoRepeat()
 {
     // If this changes, this test must be completely revised.
-    QVERIFY( !testWidget->isCheckable() );
+    QVERIFY(!testWidget->isCheckable());
 
     // verify autorepeat is off by default.
-    QPushButton tmp( 0 );
+    QPushButton tmp;
     tmp.setObjectName("tmp");
-    QVERIFY( !tmp.autoRepeat() );
+    QVERIFY(!tmp.autoRepeat());
 
     // check if we can toggle the mode
-    testWidget->setAutoRepeat( true );
-    QVERIFY( testWidget->autoRepeat() );
+    testWidget->setAutoRepeat(true);
+    QVERIFY(testWidget->autoRepeat());
 
-    testWidget->setAutoRepeat( false );
-    QVERIFY( !testWidget->autoRepeat() );
+    testWidget->setAutoRepeat(false);
+    QVERIFY(!testWidget->autoRepeat());
 
     resetCounters();
 
     // check that the button is down if we press space and not in autorepeat
-    testWidget->setDown( false );
-    testWidget->setAutoRepeat( false );
-    QTest::keyPress( testWidget, Qt::Key_Space );
+    testWidget->setDown(false);
+    testWidget->setAutoRepeat(false);
+    QTest::keyPress(testWidget, Qt::Key_Space);
 
-    QTRY_VERIFY( testWidget->isDown() );
-    QVERIFY( toggle_count == 0 );
-    QVERIFY( press_count == 1 );
-    QVERIFY( release_count == 0 );
-    QVERIFY( click_count == 0 );
+    QTRY_VERIFY(testWidget->isDown());
+    QCOMPARE(toggle_count, 0);
+    QCOMPARE(press_count, 1);
+    QCOMPARE(release_count, 0);
+    QCOMPARE(click_count, 0);
 
-    QTest::keyRelease( testWidget, Qt::Key_Space );
+    QTest::keyRelease(testWidget, Qt::Key_Space);
     resetCounters();
 
     // check that the button is down if we press space while in autorepeat
     // we can't actually confirm how many times it is fired, more than 1 is enough.
 
-    testWidget->setDown( false );
-    testWidget->setAutoRepeat( true );
-    QTest::keyPress( testWidget, Qt::Key_Space );
+    testWidget->setDown(false);
+    testWidget->setAutoRepeat(true);
+    QTest::keyPress(testWidget, Qt::Key_Space);
     QTRY_VERIFY(press_count > 3);
-    QVERIFY( testWidget->isDown() );
-    QVERIFY( toggle_count == 0 );
-    QTest::keyRelease( testWidget, Qt::Key_Space );
+    QVERIFY(testWidget->isDown());
+    QCOMPARE(toggle_count, 0);
+    QTest::keyRelease(testWidget, Qt::Key_Space);
     QCOMPARE(press_count, release_count);
     QCOMPARE(release_count, click_count);
 
@@ -199,7 +198,7 @@ void tst_QPushButton::autoRepeat()
 
     // check that pressing ENTER has no effect
     resetCounters();
-    testWidget->setDown( false );
+    testWidget->setDown(false);
     // Skip after reset if ButtonPressKeys has Key_Enter
     const auto buttonPressKeys = QGuiApplicationPrivate::platformTheme()
                                          ->themeHint(QPlatformTheme::ButtonPressKeys)
@@ -207,40 +206,40 @@ void tst_QPushButton::autoRepeat()
     if (buttonPressKeys.contains(Qt::Key_Enter)) {
         return;
     }
-    testWidget->setAutoRepeat( false );
-    QTest::keyPress( testWidget, Qt::Key_Enter );
+    testWidget->setAutoRepeat(false);
+    QTest::keyPress(testWidget, Qt::Key_Enter);
 
-    QTest::qWait( 300 );
+    QTest::qWait(300);
 
-    QVERIFY( !testWidget->isDown() );
-    QVERIFY( toggle_count == 0 );
-    QVERIFY( press_count == 0 );
-    QVERIFY( release_count == 0 );
-    QVERIFY( click_count == 0 );
-    QTest::keyRelease( testWidget, Qt::Key_Enter );
+    QVERIFY(!testWidget->isDown());
+    QCOMPARE(toggle_count, 0);
+    QCOMPARE(press_count, 0);
+    QCOMPARE(release_count, 0);
+    QCOMPARE(click_count, 0);
+    QTest::keyRelease(testWidget, Qt::Key_Enter);
 
     // check that pressing ENTER has no effect
     resetCounters();
-    testWidget->setDown( false );
-    testWidget->setAutoRepeat( true );
-    QTest::keyClick( testWidget, Qt::Key_Enter );
-    QTest::qWait( 300 );
-    QVERIFY( !testWidget->isDown() );
-    QVERIFY( toggle_count == 0 );
-    QVERIFY( press_count == 0 );
-    QVERIFY( release_count == 0 );
-    QVERIFY( click_count == 0 );
+    testWidget->setDown(false);
+    testWidget->setAutoRepeat(true);
+    QTest::keyClick(testWidget, Qt::Key_Enter);
+    QTest::qWait(300);
+    QVERIFY(!testWidget->isDown());
+    QCOMPARE(toggle_count, 0);
+    QCOMPARE(press_count, 0);
+    QCOMPARE(release_count, 0);
+    QCOMPARE(click_count, 0);
 }
 
 void tst_QPushButton::pressed()
 {
-    QTest::keyPress( testWidget, ' ' );
-    QCOMPARE( press_count, (uint)1 );
-    QCOMPARE( release_count, (uint)0 );
+    QTest::keyPress(testWidget, ' ');
+    QCOMPARE(press_count, 1);
+    QCOMPARE(release_count, 0);
 
-    QTest::keyRelease( testWidget, ' ' );
-    QCOMPARE( press_count, (uint)1 );
-    QCOMPARE( release_count, (uint)1 );
+    QTest::keyRelease(testWidget, ' ');
+    QCOMPARE(press_count, 1);
+    QCOMPARE(release_count, 1);
 
     // Skip if ButtonPressKeys has Key_Enter
     const auto buttonPressKeys = QGuiApplicationPrivate::platformTheme()
@@ -250,77 +249,77 @@ void tst_QPushButton::pressed()
         return;
     }
 
-    QTest::keyPress( testWidget,Qt::Key_Enter );
-    QCOMPARE( press_count, (uint)1 );
-    QCOMPARE( release_count, (uint)1 );
+    QTest::keyPress(testWidget,Qt::Key_Enter);
+    QCOMPARE(press_count, 1);
+    QCOMPARE(release_count, 1);
 
     testWidget->setAutoDefault(true);
-    QTest::keyPress( testWidget,Qt::Key_Enter );
-    QCOMPARE( press_count, (uint)2 );
-    QCOMPARE( release_count, (uint)2 );
+    QTest::keyPress(testWidget,Qt::Key_Enter);
+    QCOMPARE(press_count, 2);
+    QCOMPARE(release_count, 2);
     testWidget->setAutoDefault(false);
 
 }
 
 void tst_QPushButton::isCheckable()
 {
-    QVERIFY( !testWidget->isCheckable() );
+    QVERIFY(!testWidget->isCheckable());
 }
 
 void tst_QPushButton::setDown()
 {
-    testWidget->setDown( false );
-    QVERIFY( !testWidget->isDown() );
+    testWidget->setDown(false);
+    QVERIFY(!testWidget->isDown());
 
-    testWidget->setDown( true );
-    QVERIFY( testWidget->isDown() );
+    testWidget->setDown(true);
+    QVERIFY(testWidget->isDown());
 
-    testWidget->setDown( true );
-    QTest::keyClick( testWidget, Qt::Key_Escape );
-    QVERIFY( !testWidget->isDown() );
+    testWidget->setDown(true);
+    QTest::keyClick(testWidget, Qt::Key_Escape);
+    QVERIFY(!testWidget->isDown());
 }
 
 void tst_QPushButton::isChecked()
 {
-    testWidget->setDown( false );
-    QVERIFY( !testWidget->isChecked() );
+    testWidget->setDown(false);
+    QVERIFY(!testWidget->isChecked());
 
-    testWidget->setDown( true );
-    QVERIFY( !testWidget->isChecked() );
+    testWidget->setDown(true);
+    QVERIFY(!testWidget->isChecked());
 
-    testWidget->setDown( false );
+    testWidget->setDown(false);
     testWidget->toggle();
-    QVERIFY( testWidget->isChecked() == testWidget->isCheckable() );
+    QCOMPARE(testWidget->isChecked(), testWidget->isCheckable());
 }
 
 void tst_QPushButton::toggle()
 {
     // the pushbutton shouldn't toggle the button.
     testWidget->toggle();
-    QVERIFY( testWidget->isChecked() == false );
+    QCOMPARE(testWidget->isChecked(), false);
 }
 
 void tst_QPushButton::toggled()
 {
     // the pushbutton shouldn't send a toggled signal when we call the toggle slot.
-    QVERIFY( !testWidget->isCheckable() );
+    QVERIFY(!testWidget->isCheckable());
 
     testWidget->toggle();
-    QVERIFY( toggle_count == 0 );
+    QCOMPARE(toggle_count, 0);
 
     // do it again, just to be sure
     resetCounters();
     testWidget->toggle();
-    QVERIFY( toggle_count == 0 );
+    QCOMPARE(toggle_count, 0);
 
     // finally check that we can toggle using the mouse
     resetCounters();
-    QTest::mousePress( testWidget, Qt::LeftButton );
-    QVERIFY( toggle_count == 0 );
-    QVERIFY( click_count == 0 );
+    QTest::mousePress(testWidget, Qt::LeftButton);
+    QCOMPARE(toggle_count, 0);
+    QCOMPARE(click_count, 0);
 
-    QTest::mouseRelease( testWidget, Qt::LeftButton );
-    QVERIFY( click_count == 1 );
+    QTest::mouseRelease(testWidget, Qt::LeftButton);
+    QCOMPARE(click_count, 1);
 }
 
 #if QT_CONFIG(shortcut)
@@ -333,56 +332,56 @@ void tst_QPushButton::toggled()
 void tst_QPushButton::setAccel()
 {
     testWidget->setText("&AccelTest");
-    QKeySequence seq( Qt::ALT | Qt::Key_A );
-    testWidget->setShortcut( seq );
+    QKeySequence seq(Qt::ALT | Qt::Key_A);
+    testWidget->setShortcut(seq);
 
     // The shortcut will not be activated unless the button is in a active
     // window and has focus
     QApplicationPrivate::setActiveWindow(testWidget);
     testWidget->setFocus();
     QVERIFY(QTest::qWaitForWindowActive(testWidget));
-    QTest::keyClick( testWidget, 'A', Qt::AltModifier );
-    QTRY_VERIFY( click_count == 1 );
-    QVERIFY( press_count == 1 );
-    QVERIFY( release_count == 1 );
-    QVERIFY( toggle_count == 0 );
+    QTest::keyClick(testWidget, 'A', Qt::AltModifier);
+    QTRY_VERIFY(click_count == 1);
+    QCOMPARE(press_count, 1);
+    QCOMPARE(release_count, 1);
+    QCOMPARE(toggle_count, 0);
 
     // wait 200 ms because setAccel uses animateClick.
     // if we don't wait this may screw up a next test.
     QTest::qWait(200);
-    QTRY_VERIFY( !testWidget->isDown() );
+    QTRY_VERIFY(!testWidget->isDown());
 }
 
 #endif // QT_CONFIG(shortcut)
 
 void tst_QPushButton::clicked()
 {
-    QTest::mousePress( testWidget, Qt::LeftButton );
-    QVERIFY( press_count == 1 );
-    QVERIFY( release_count == 0 );
+    QTest::mousePress(testWidget, Qt::LeftButton);
+    QCOMPARE(press_count, 1);
+    QCOMPARE(release_count, 0);
 
-    QTest::mouseRelease( testWidget, Qt::LeftButton );
-    QCOMPARE( press_count, (uint)1 );
-    QCOMPARE( release_count, (uint)1 );
+    QTest::mouseRelease(testWidget, Qt::LeftButton);
+    QCOMPARE(press_count, 1);
+    QCOMPARE(release_count, 1);
 
     press_count = 0;
     release_count = 0;
     testWidget->setDown(false);
     for (uint i=0; i<10; i++)
-        QTest::mouseClick( testWidget, Qt::LeftButton );
-    QCOMPARE( press_count, (uint)10 );
-    QCOMPARE( release_count, (uint)10 );
+        QTest::mouseClick(testWidget, Qt::LeftButton);
+    QCOMPARE(press_count, 10);
+    QCOMPARE(release_count, 10);
 }
 
 void tst_QPushButton::touchTap()
 {
     QTest::touchEvent(testWidget, m_touchScreen).press(0, QPoint(10, 10));
-    QVERIFY( press_count == 1 );
-    QVERIFY( release_count == 0 );
+    QCOMPARE(press_count, 1);
+    QCOMPARE(release_count, 0);
     QTest::touchEvent(testWidget, m_touchScreen).release(0, QPoint(10, 10));
-    QCOMPARE( press_count, (uint)1 );
-    QCOMPARE( release_count, (uint)1 );
-    QCOMPARE( click_count, (uint)1 );
+    QCOMPARE(press_count, 1);
+    QCOMPARE(release_count, 1);
+    QCOMPARE(click_count, 1);
 
     press_count = 0;
     release_count = 0;
@@ -392,26 +391,23 @@ void tst_QPushButton::touchTap()
         QTest::touchEvent(testWidget, m_touchScreen).press(0, QPoint(10, 10));
         QTest::touchEvent(testWidget, m_touchScreen).release(0, QPoint(10, 10));
     }
-    QCOMPARE( press_count, (uint)10 );
-    QCOMPARE( release_count, (uint)10 );
-    QCOMPARE( click_count, (uint)10 );
-}
-
-QPushButton *pb = 0;
-void tst_QPushButton::helperSlotDelete()
-{
-    delete pb;
-    pb = 0;
+    QCOMPARE(press_count, 10);
+    QCOMPARE(release_count, 10);
+    QCOMPARE(click_count, 10);
 }
 
 void tst_QPushButton::popupCrash()
 {
-    pb = new QPushButton("foo");
+    QPushButton *pb = new QPushButton("foo");
     QMenu *menu = new QMenu("bar", pb);
     pb->setMenu(menu);
-    QTimer::singleShot(1000, this, SLOT(helperSlotDelete()));
+    QTimer::singleShot(1000, this, [&pb]{
+        delete pb;
+        pb = nullptr;
+    });
     pb->show();
     pb->click();
+    QTRY_COMPARE(pb, nullptr);
 }
 
 void tst_QPushButton::defaultAndAutoDefault()
@@ -501,14 +497,14 @@ void tst_QPushButton::defaultAndAutoDefault()
 
     // Reparenting
     QVERIFY(button2.autoDefault());
-    button2.setParent(0);
+    button2.setParent(nullptr);
     QVERIFY(!button2.autoDefault());
     button2.setAutoDefault(false);
     button2.setParent(&dialog);
     QVERIFY(!button2.autoDefault());
 
     button1.setAutoDefault(true);
-    button1.setParent(0);
+    button1.setParent(nullptr);
     QVERIFY(button1.autoDefault());
     }
 }
@@ -549,7 +545,7 @@ void tst_QPushButton::sizeHint()
         button->setParent(widget);
         button->sizeHint();
 
-        widget->setParent(0);
+        widget->setParent(nullptr);
         delete dialog;
         button->setDefault(false);
         QCOMPARE(button->sizeHint(), initSizeHint);
diff --git a/tests/baseline/shared/baselineprotocol.cpp b/tests/baseline/shared/baselineprotocol.cpp
index 198057ab..b77d3fc6 100644
--- a/tests/baseline/shared/baselineprotocol.cpp
+++ b/tests/baseline/shared/baselineprotocol.cpp
@@ -270,7 +270,7 @@ bool BaselineProtocol::connect(const QString &testCase, bool *dryrun, const Plat
 
     socket.connectToHost(serverName, ServerPort);
     if (!socket.waitForConnected(Timeout)) {
-        QThread::msleep(3000);  // Wait a bit and try again, the server might just be restarting
+        QThread::sleep(std::chrono::seconds{3});  // Wait a bit and try again, the server might just be restarting
         if (!socket.waitForConnected(Timeout)) {
             errMsg += QLS("TCP connectToHost failed. Host:") + QLS(serverName) + QLS(" port:") + QString::number(ServerPort);
             return false;
diff --git a/tests/baseline/shared/qwidgetbaselinetest.cpp b/tests/baseline/shared/qwidgetbaselinetest.cpp
index 1c150bd7..8e5c68f8 100644
--- a/tests/baseline/shared/qwidgetbaselinetest.cpp
+++ b/tests/baseline/shared/qwidgetbaselinetest.cpp
@@ -117,6 +117,20 @@ QImage QWidgetBaselineTest::takeSnapshot()
     return window->grab().toImage();
 }
 
+/*
+    Grabs the test window screen and returns the resulting QImage, without
+    compensating for DPR differences.
+    This can be used for popup windows.
+*/
+QImage QWidgetBaselineTest::takeScreenSnapshot(const QRect& windowRect)
+{
+    // make sure all effects are done - wait longer here because entire
+    // windows might be fading in and out.
+    QTest::qWait(750);
+    return window->screen()->grabWindow(0, windowRect.x(), windowRect.y(),
+                                        windowRect.width(), windowRect.height()).toImage();
+}
+
 /*!
     Sets standard widget properties on the test window and its children,
     and uploads snapshots. The widgets are returned in the same state
diff --git a/tests/baseline/shared/qwidgetbaselinetest.h b/tests/baseline/shared/qwidgetbaselinetest.h
index 9b96ea0a..9f029e7a 100644
--- a/tests/baseline/shared/qwidgetbaselinetest.h
+++ b/tests/baseline/shared/qwidgetbaselinetest.h
@@ -32,6 +32,7 @@ private slots:
 protected:
     void makeVisible();
     QImage takeSnapshot();
+    QImage takeScreenSnapshot(const QRect& rect = QRect());
 
 private:
     QWidget *window = nullptr;
diff --git a/tests/baseline/widgets/tst_baseline_widgets.cpp b/tests/baseline/widgets/tst_baseline_widgets.cpp
index 0182f8d6..366a1704 100644
--- a/tests/baseline/widgets/tst_baseline_widgets.cpp
+++ b/tests/baseline/widgets/tst_baseline_widgets.cpp
@@ -70,6 +70,18 @@ private slots:
     void tst_QLineEdit_data();
     void tst_QLineEdit();
 
+    void tst_QMenu_data();
+    void tst_QMenu();
+
+    void tst_QCombobox_data();
+    void tst_QCombobox();
+
+    void tst_QCommandLinkButton_data();
+    void tst_QCommandLinkButton();
+
+    void tst_QLCDNumber_data();
+    void tst_QLCDNumber();
+
 private:
 
     // Abstract SpinBox test for QSpinBox, QDoubleSpinBox, QDateTimeEdit, QDateEdit, QTimeEdit
@@ -1094,6 +1106,175 @@ void tst_Widgets::tst_QLineEdit()
     QBASELINE_CHECK_DEFERRED(takeSnapshot(), "textSelected");
 }
 
+void tst_Widgets::tst_QMenu_data()
+{
+    QTest::addColumn<QStringList>("actions");
+
+    const QStringList menu1 = {"Text", "", "TextAndIcon", "", "SubMenu", "", "Checked"};
+    QTest::newRow("showMenuPopup") << menu1;
+}
+
+void tst_Widgets::tst_QMenu()
+{
+    QFETCH(const QStringList, actions);
+
+    testWindow()->resize(300, 200);
+
+    QBoxLayout layout(QBoxLayout::TopToBottom);
+    QMenu menu1;
+
+    for (const auto& menuItem : actions) {
+        if (!menuItem.isEmpty()) {
+            if (menuItem == "Text") {
+                menu1.addAction(QString("MenuItem"));
+                menu1.addAction(QString(""));
+            } else if (menuItem == "TextAndIcon") {
+                // Using pixmap icon
+                QPixmap pix(10, 10);
+                pix.fill(Qt::green);
+                menu1.addAction(QIcon(pix), QString("MenuWithIcon"));
+                menu1.addAction(QIcon(), QString("MenuNoIcon"));
+            } else if (menuItem == "SubMenu") {
+                QMenu* submenu = menu1.addMenu(QString("&Submenu1"));
+                submenu->addAction("SubMenuA");
+                submenu->addAction("SubMenuB");
+            } else if (menuItem == "Checked") {
+                auto checked = menu1.addAction(QString("MenuChecked"));
+                checked->setCheckable(true);
+                checked->setChecked(true);
+                auto notChecked = menu1.addAction(QString("MenuNotChecked"));
+                notChecked->setCheckable(true);
+                notChecked->setChecked(false);
+            }
+        } else {
+            menu1.addSeparator();
+        }
+    }
+
+    layout.addWidget(&menu1);
+    testWindow()->setLayout(&layout);
+
+    testWindow()->show();
+    QVERIFY(QTest::qWaitForWindowExposed(testWindow()));
+    QRect testWindowRect(testWindow()->geometry());
+    // There can be rounded corners in the window and this leads to test
+    // case to be fuzzy. Adjust window rectangle that need to be captured
+    int adjustPixel = menu1.geometry().left();
+    testWindowRect.adjust(adjustPixel, adjustPixel, -adjustPixel, -adjustPixel);
+    QBASELINE_CHECK_DEFERRED(takeScreenSnapshot(testWindowRect), "showitems");
+
+    // Normal menu item with text
+    QTest::keyClick(&menu1, Qt::Key_Down);
+    QBASELINE_CHECK_DEFERRED(takeScreenSnapshot(testWindowRect), "selectmenutext");
+    QTest::keyClick(&menu1, Qt::Key_Down);
+    QBASELINE_CHECK_DEFERRED(takeScreenSnapshot(testWindowRect), "selectmenunotext");
+
+    // Menu with icon and text
+    QTest::keyClick(&menu1, Qt::Key_Down);
+    QBASELINE_CHECK_DEFERRED(takeScreenSnapshot(testWindowRect), "selectmenuwithicon");
+    QTest::keyClick(&menu1, Qt::Key_Down);
+    QBASELINE_CHECK_DEFERRED(takeScreenSnapshot(testWindowRect), "selectmenuwithnullicon");
+
+    // Sub-menu items
+    QTest::keyClick(&menu1, Qt::Key_Down);
+    QTest::keyClick(&menu1, Qt::Key_Right);
+    QBASELINE_CHECK_DEFERRED(takeScreenSnapshot(testWindowRect), "selectsubmenu");
+    QTest::keyClick(&menu1, Qt::Key_Left);
+
+    // Checked menu
+    QTest::keyClick(&menu1, Qt::Key_Down);
+    QBASELINE_CHECK_DEFERRED(takeScreenSnapshot(testWindowRect), "selectmenuchecked");
+    QTest::keyClick(&menu1, Qt::Key_Down);
+    QBASELINE_CHECK_DEFERRED(takeScreenSnapshot(testWindowRect), "selectmenunotchecked");
+}
+
+void tst_Widgets::tst_QCombobox_data()
+{
+    QTest::addColumn<bool>("hasFrame");
+    QTest::addColumn<bool>("isEditable");
+
+    QTest::addRow("frameNonEditable") << true << false;
+    QTest::addRow("frameEditable") << true << true;
+    QTest::addRow("noFrameNonEditable") << false << false;
+    QTest::addRow("noFrameEditable") << false << true;
+}
+
+void tst_Widgets::tst_QCombobox()
+{
+    QFETCH(const bool, hasFrame);
+    QFETCH(const bool, isEditable);
+
+    testWindow()->resize(300, 300);
+
+    QScopedPointer<QComboBox> combobox(new QComboBox(testWindow()));
+    QStringList items;
+    items << tr("Item1") << tr("Item2") << tr("Item3");
+    QStringListModel* itemModel = new QStringListModel(items, this);
+    combobox->setModel(itemModel);
+    combobox->setFrame(hasFrame);
+    combobox->setEditable(isEditable);
+
+    QHBoxLayout layout;
+    layout.addWidget(combobox.get());
+    testWindow()->setLayout(&layout);
+    takeStandardSnapshots();
+
+    QTest::keyClick(combobox.get(), Qt::Key_Down, Qt::AltModifier);
+    QBASELINE_CHECK_DEFERRED(takeScreenSnapshot(testWindow()->geometry()), "combobox");
+}
+
+void tst_Widgets::tst_QCommandLinkButton_data()
+{
+    QTest::addColumn<bool>("flat");
+    QTest::addColumn<QString>("description");
+
+    QTest::addRow("flatDescription") << true << QString("Command button very specific to windows vista");
+    QTest::addRow("flatNoDescription") << true << QString("");
+    QTest::addRow("noFlatNoDescription") << false << QString("");
+}
+
+void tst_Widgets::tst_QCommandLinkButton()
+{
+    QFETCH(const bool, flat);
+    QFETCH(const QString, description);
+
+    QScopedPointer<QCommandLinkButton> commandLink(new QCommandLinkButton(QString("CommandLink"), description, testWindow()));
+    commandLink->setFlat(flat);
+    commandLink->setDescription(description);
+
+    QHBoxLayout layout;
+    layout.addWidget(commandLink.get());
+    testWindow()->setLayout(&layout);
+    takeStandardSnapshots();
+}
+
+void tst_Widgets::tst_QLCDNumber_data()
+{
+    QTest::addColumn<int>("segmentstyle");
+
+    QTest::addRow("outline") << 0;
+    QTest::addRow("filled") << 1;
+    QTest::addRow("flat") << 2;
+}
+
+void tst_Widgets::tst_QLCDNumber()
+{
+    QFETCH(const int, segmentstyle);
+
+    testWindow()->resize(100, 100);
+
+    QScopedPointer<QLCDNumber> lcdNumber(new QLCDNumber(99, testWindow()));
+    lcdNumber->setHexMode();
+    lcdNumber->setSegmentStyle(static_cast<QLCDNumber::SegmentStyle>(segmentstyle));
+
+
+    QHBoxLayout layout;
+    layout.addWidget(lcdNumber.get());
+    testWindow()->setLayout(&layout);
+
+    QBASELINE_CHECK_DEFERRED(takeSnapshot(), "lcdnumber");
+}
+
 #define main _realmain
 QTEST_MAIN(tst_Widgets)
 #undef main
diff --git a/tests/benchmarks/corelib/itemmodels/qsortfilterproxymodel/tst_bench_qsortfilterproxymodel.cpp b/tests/benchmarks/corelib/itemmodels/qsortfilterproxymodel/tst_bench_qsortfilterproxymodel.cpp
index 76576fcf..42017a30 100644
--- a/tests/benchmarks/corelib/itemmodels/qsortfilterproxymodel/tst_bench_qsortfilterproxymodel.cpp
+++ b/tests/benchmarks/corelib/itemmodels/qsortfilterproxymodel/tst_bench_qsortfilterproxymodel.cpp
@@ -31,6 +31,7 @@ class tst_QSortFilterProxyModel : public QObject
 private slots:
     void clearFilter_data();
     void clearFilter();
+    void setSourceModel();
 
 private:
     QStringList m_numberList; ///< Cache the strings for efficiency.
@@ -93,6 +94,19 @@ void tst_QSortFilterProxyModel::clearFilter()
     QCOMPARE(proxy.rowCount(), itemCount);
 }
 
+void tst_QSortFilterProxyModel::setSourceModel()
+{
+    QStringListModel model1;
+    QStringListModel model2;
+
+    QSortFilterProxyModel proxy;
+
+    QBENCHMARK {
+        proxy.setSourceModel(&model1);
+        proxy.setSourceModel(&model2);
+    }
+}
+
 QTEST_MAIN(tst_QSortFilterProxyModel)
 
 #include "tst_bench_qsortfilterproxymodel.moc"
diff --git a/tests/benchmarks/corelib/text/qlocale/tst_bench_qlocale.cpp b/tests/benchmarks/corelib/text/qlocale/tst_bench_qlocale.cpp
index 8e0c559d..d6a5b90f 100644
--- a/tests/benchmarks/corelib/text/qlocale/tst_bench_qlocale.cpp
+++ b/tests/benchmarks/corelib/text/qlocale/tst_bench_qlocale.cpp
@@ -455,10 +455,6 @@ void tst_QLocale::toLongLong()
     QBENCHMARK {
         actual = loc.toLongLong(text, &ok);
     }
-    QEXPECT_FAIL("ar_EG: +403", "Code wrongly assumes single character, QTBUG-107801", Abort);
-    QEXPECT_FAIL("ar_EG: -403", "Code wrongly assumes single character, QTBUG-107801", Abort);
-    QEXPECT_FAIL("fa_IR: +403", "Code wrongly assumes single character, QTBUG-107801", Abort);
-    QEXPECT_FAIL("fa_IR: -403", "Code wrongly assumes single character, QTBUG-107801", Abort);
     QCOMPARE(ok, good);
     QCOMPARE(actual, expected);
 }
@@ -488,8 +484,6 @@ void tst_QLocale::toULongLong()
     QBENCHMARK {
         actual = loc.toULongLong(text, &ok);
     }
-    QEXPECT_FAIL("ar_EG: +403", "Code wrongly assumes single character, QTBUG-107801", Abort);
-    QEXPECT_FAIL("fa_IR: +403", "Code wrongly assumes single character, QTBUG-107801", Abort);
     QCOMPARE(ok, good);
     QCOMPARE(actual, expected);
 }
@@ -588,9 +582,6 @@ void tst_QLocale::toDouble()
     QBENCHMARK {
         actual = loc.toDouble(text, &ok);
     }
-    QEXPECT_FAIL("sv_SE: 4e-3", "Code wrongly assumes single character, QTBUG-107801", Abort);
-    QEXPECT_FAIL("se_NO: 4e-3", "Code wrongly assumes single character, QTBUG-107801", Abort);
-    QEXPECT_FAIL("ar_EG: 4e-3", "Code wrongly assumes single character, QTBUG-107801", Abort);
     QEXPECT_FAIL("en: &infin;", "Localized infinity support missing: QTBUG-95460", Abort);
     QEXPECT_FAIL("ga: Nuimh", "Localized NaN support missing: QTBUG-95460", Abort);
     QCOMPARE(ok, good);
diff --git a/tests/benchmarks/corelib/thread/qfuture/tst_bench_qfuture.cpp b/tests/benchmarks/corelib/thread/qfuture/tst_bench_qfuture.cpp
index 7c0e3b2f..74dd5494 100644
--- a/tests/benchmarks/corelib/thread/qfuture/tst_bench_qfuture.cpp
+++ b/tests/benchmarks/corelib/thread/qfuture/tst_bench_qfuture.cpp
@@ -13,7 +13,7 @@ class tst_QFuture : public QObject
     Q_OBJECT
 
 private slots:
-    void makeReadyfuture();
+    void makeReadyValueFuture();
 #ifndef QT_NO_EXCEPTIONS
     void makeExceptionalFuture();
 #endif
@@ -43,10 +43,10 @@ private slots:
     void progressText();
 };
 
-void tst_QFuture::makeReadyfuture()
+void tst_QFuture::makeReadyValueFuture()
 {
     QBENCHMARK {
-        auto future = QtFuture::makeReadyFuture(42);
+        auto future = QtFuture::makeReadyValueFuture(42);
         Q_UNUSED(future);
     }
 }
@@ -64,7 +64,7 @@ void tst_QFuture::makeExceptionalFuture()
 
 void tst_QFuture::result()
 {
-    auto future = QtFuture::makeReadyFuture(42);
+    auto future = QtFuture::makeReadyValueFuture(42);
 
     QBENCHMARK {
         auto value = future.result();
@@ -92,7 +92,7 @@ void tst_QFuture::results()
 void tst_QFuture::takeResult()
 {
     QBENCHMARK {
-        auto future = QtFuture::makeReadyFuture(42);
+        auto future = QtFuture::makeReadyValueFuture(42);
         auto value = future.takeResult();
         Q_UNUSED(value);
     }
@@ -140,7 +140,7 @@ void tst_QFuture::reportException()
 
 void tst_QFuture::then()
 {
-    auto f = QtFuture::makeReadyFuture(42);
+    auto f = QtFuture::makeReadyValueFuture(42);
     QBENCHMARK {
         auto future = f.then([](int value) { return value; });
         Q_UNUSED(future);
@@ -149,7 +149,7 @@ void tst_QFuture::then()
 
 void tst_QFuture::thenVoid()
 {
-    auto f = QtFuture::makeReadyFuture();
+    auto f = QtFuture::makeReadyVoidFuture();
     QBENCHMARK {
         auto future = f.then([] {});
         Q_UNUSED(future);
@@ -205,7 +205,7 @@ void tst_QFuture::onFailedVoid()
 
 void tst_QFuture::thenOnFailed()
 {
-    auto f = QtFuture::makeReadyFuture(42);
+    auto f = QtFuture::makeReadyValueFuture(42);
     QBENCHMARK {
         auto future =
                 f.then([](int) { throw std::runtime_error("error"); }).onFailed([] { return 0; });
@@ -215,7 +215,7 @@ void tst_QFuture::thenOnFailed()
 
 void tst_QFuture::thenOnFailedVoid()
 {
-    auto f = QtFuture::makeReadyFuture();
+    auto f = QtFuture::makeReadyVoidFuture();
     QBENCHMARK {
         auto future = f.then([] { throw std::runtime_error("error"); }).onFailed([] {});
         Q_UNUSED(future);
diff --git a/tests/benchmarks/corelib/thread/qmutex/tst_bench_qmutex.cpp b/tests/benchmarks/corelib/thread/qmutex/tst_bench_qmutex.cpp
index 7ebe880a..fa48c959 100644
--- a/tests/benchmarks/corelib/thread/qmutex/tst_bench_qmutex.cpp
+++ b/tests/benchmarks/corelib/thread/qmutex/tst_bench_qmutex.cpp
@@ -9,6 +9,8 @@
 
 //#define USE_SEM_T
 
+using namespace std::chrono_literals;
+
 #if defined(Q_OS_UNIX)
 #if !defined(USE_SEM_T)
 #  include <pthread.h>
@@ -228,7 +230,8 @@ void tst_QMutex::contendedNative_data()
 class NativeMutexThread : public QThread
 {
     NativeMutexType *mutex1, *mutex2;
-    int iterations, msleepDuration;
+    int iterations;
+    std::chrono::milliseconds msleepDuration;
     bool use2mutexes;
 public:
     bool done;
@@ -246,8 +249,8 @@ public:
                 NativeMutexLock(mutex1);
                 if (use2mutexes)
                     NativeMutexLock(mutex2);
-                if (msleepDuration >= 0)
-                    msleep(msleepDuration);
+                if (msleepDuration >= 0ms)
+                    sleep(msleepDuration);
                 if (use2mutexes)
                     NativeMutexUnlock(mutex2);
                 NativeMutexUnlock(mutex1);
@@ -298,7 +301,8 @@ void tst_QMutex::contendedNative()
 class QMutexThread : public QThread
 {
     QMutex *mutex1, *mutex2;
-    int iterations, msleepDuration;
+    int iterations;
+    std::chrono::milliseconds msleepDuration;
     bool use2mutexes;
 public:
     bool done;
@@ -316,8 +320,8 @@ public:
                 mutex1->lock();
                 if (use2mutexes)
                     mutex2->lock();
-                if (msleepDuration >= 0)
-                    msleep(msleepDuration);
+                if (msleepDuration >= 0ms)
+                    sleep(msleepDuration);
                 if (use2mutexes)
                     mutex2->unlock();
                 mutex1->unlock();
@@ -363,7 +367,8 @@ void tst_QMutex::contendedQMutex()
 class QMutexLockerThread : public QThread
 {
     QMutex *mutex1, *mutex2;
-    int iterations, msleepDuration;
+    int iterations;
+    std::chrono::milliseconds msleepDuration;
     bool use2mutexes;
 public:
     bool done;
@@ -381,8 +386,8 @@ public:
                 {
                     QMutexLocker locker1(mutex1);
                     QMutexLocker locker2(use2mutexes ? mutex2 : 0);
-                    if (msleepDuration >= 0)
-                        msleep(msleepDuration);
+                    if (msleepDuration >= 0ms)
+                        sleep(msleepDuration);
                 }
 
                 QThread::yieldCurrentThread();
diff --git a/tests/benchmarks/corelib/tools/qcryptographichash/tst_bench_qcryptographichash.cpp b/tests/benchmarks/corelib/tools/qcryptographichash/tst_bench_qcryptographichash.cpp
index 27a628af..8066650b 100644
--- a/tests/benchmarks/corelib/tools/qcryptographichash/tst_bench_qcryptographichash.cpp
+++ b/tests/benchmarks/corelib/tools/qcryptographichash/tst_bench_qcryptographichash.cpp
@@ -178,7 +178,7 @@ void tst_QCryptographicHash::hmac_addData()
         mac.reset();
         mac.addData(data);
         [[maybe_unused]]
-        auto r = mac.result();
+        auto r = mac.resultView();
     }
 }
 
diff --git a/tests/benchmarks/network/access/qnetworkreply/tst_qnetworkreply.cpp b/tests/benchmarks/network/access/qnetworkreply/tst_qnetworkreply.cpp
index 651bd90b..bb11a97f 100644
--- a/tests/benchmarks/network/access/qnetworkreply/tst_qnetworkreply.cpp
+++ b/tests/benchmarks/network/access/qnetworkreply/tst_qnetworkreply.cpp
@@ -21,6 +21,8 @@
 #include <QtNetwork/private/qhostinfo_p.h>
 #endif
 
+using namespace std::chrono_literals;
+
 Q_DECLARE_METATYPE(QSharedPointer<char>)
 
 class TimedSender: public QThread
@@ -456,7 +458,7 @@ void tst_qnetworkreply::httpLatency()
         QNetworkRequest request(QUrl("http://" + QtNetworkSettings::serverName() + "/qtest/"));
         QNetworkReply* reply = manager.get(request);
         connect(reply, SIGNAL(finished()), &QTestEventLoop::instance(), SLOT(exitLoop()), Qt::QueuedConnection);
-        QTestEventLoop::instance().enterLoop(5);
+        QTestEventLoop::instance().enterLoop(5s);
         QVERIFY(!QTestEventLoop::instance().timeout());
         delete reply;
     }
@@ -470,7 +472,7 @@ QPair<QNetworkReply *, qint64> tst_qnetworkreply::runGetRequest(
     QNetworkReply *reply = manager->get(request);
     connect(reply, SIGNAL(sslErrors(QList<QSslError>)), reply, SLOT(ignoreSslErrors()));
     connect(reply, SIGNAL(finished()), &QTestEventLoop::instance(), SLOT(exitLoop()), Qt::QueuedConnection);
-    QTestEventLoop::instance().enterLoop(20);
+    QTestEventLoop::instance().enterLoop(20s);
     qint64 elapsed = timer.elapsed();
     return qMakePair(reply, elapsed);
 }
@@ -501,7 +503,7 @@ void tst_qnetworkreply::echoPerformance()
         QNetworkReply* reply = manager.post(request, data);
         connect(reply, SIGNAL(sslErrors(QList<QSslError>)), reply, SLOT(ignoreSslErrors()));
         connect(reply, SIGNAL(finished()), &QTestEventLoop::instance(), SLOT(exitLoop()), Qt::QueuedConnection);
-        QTestEventLoop::instance().enterLoop(5);
+        QTestEventLoop::instance().enterLoop(5s);
         QVERIFY(!QTestEventLoop::instance().timeout());
         QVERIFY(reply->error() == QNetworkReply::NoError);
         delete reply;
@@ -510,7 +512,7 @@ void tst_qnetworkreply::echoPerformance()
 
 void tst_qnetworkreply::preConnectEncrypted()
 {
-    QFETCH(int, sleepTime);
+    QFETCH(std::chrono::milliseconds, sleepTime);
     QString hostName = QLatin1String("www.google.com");
 
     QNetworkAccessManager manager;
@@ -541,7 +543,7 @@ void tst_qnetworkreply::preConnectEncrypted()
 
     // now try to make the connection beforehand
     manager.connectToHostEncrypted(hostName);
-    QTestEventLoop::instance().enterLoopMSecs(sleepTime);
+    QTestEventLoop::instance().enterLoop(sleepTime);
 
     // now make another request and hopefully use the existing connection
     QPair<QNetworkReply *, qint64> preConnectResult = runGetRequest(&manager, request);
@@ -559,12 +561,12 @@ void tst_qnetworkreply::preConnectEncrypted()
 void tst_qnetworkreply::preConnectEncrypted_data()
 {
 #ifndef QT_NO_OPENSSL
-    QTest::addColumn<int>("sleepTime");
+    QTest::addColumn<std::chrono::milliseconds>("sleepTime");
     // start a new normal request after preconnecting is done
-    QTest::newRow("HTTPS-2secs") << 2000;
+    QTest::newRow("HTTPS-2secs") << 2000ms;
 
     // start a new normal request while preconnecting is in-flight
-    QTest::newRow("HTTPS-100ms") << 100;
+    QTest::newRow("HTTPS-100ms") << 100ms;
 #endif // QT_NO_OPENSSL
 }
 
@@ -915,9 +917,9 @@ void tst_qnetworkreply::preConnect()
     manager.clearAccessCache();
 
     // now try to make the connection beforehand
-    QFETCH(int, sleepTime);
+    QFETCH(std::chrono::milliseconds, sleepTime);
     manager.connectToHost(hostName);
-    QTestEventLoop::instance().enterLoopMSecs(sleepTime);
+    QTestEventLoop::instance().enterLoop(sleepTime);
 
     // now make another request and hopefully use the existing connection
     QPair<QNetworkReply *, qint64> preConnectResult = runGetRequest(&manager, request);
diff --git a/tests/benchmarks/network/socket/qlocalsocket/tst_qlocalsocket.cpp b/tests/benchmarks/network/socket/qlocalsocket/tst_qlocalsocket.cpp
index dc88adb9..6c779b61 100644
--- a/tests/benchmarks/network/socket/qlocalsocket/tst_qlocalsocket.cpp
+++ b/tests/benchmarks/network/socket/qlocalsocket/tst_qlocalsocket.cpp
@@ -14,6 +14,8 @@
 #include <QtNetwork/qlocalsocket.h>
 #include <QtNetwork/qlocalserver.h>
 
+using namespace std::chrono_literals;
+
 class tst_QLocalSocket : public QObject
 {
     Q_OBJECT
@@ -175,7 +177,7 @@ void tst_QLocalSocket::dataExchange()
     QFETCH(int, chunkSize);
 
     Q_ASSERT(chunkSize > 0 && connections > 0);
-    const qint64 timeToTest = 5000;
+    const auto timeToTest = 5000ms;
 
     ServerThread serverThread(chunkSize);
     serverThread.start();
@@ -191,7 +193,7 @@ void tst_QLocalSocket::dataExchange()
         Q_UNUSED(channel);
 
         totalReceived += bytes;
-        if (timer.elapsed() >= timeToTest) {
+        if (timer.elapsed() >= timeToTest.count()) {
             factory.stopped = true;
             eventLoop.exitLoop();
         }
@@ -199,7 +201,7 @@ void tst_QLocalSocket::dataExchange()
 
     timer.start();
     emit factory.start();
-    eventLoop.enterLoopMSecs(timeToTest * 2);
+    eventLoop.enterLoop(timeToTest * 2);
 
     if (!QTest::currentTestFailed())
         qDebug("Transfer rate: %.1f MB/s", totalReceived / 1048.576 / timer.elapsed());
diff --git a/tests/benchmarks/sql/kernel/qsqlquery/main.cpp b/tests/benchmarks/sql/kernel/qsqlquery/main.cpp
index 3c7c802c..62a3f7b2 100644
--- a/tests/benchmarks/sql/kernel/qsqlquery/main.cpp
+++ b/tests/benchmarks/sql/kernel/qsqlquery/main.cpp
@@ -6,15 +6,12 @@
 
 #include "../../../../auto/sql/kernel/qsqldatabase/tst_databases.h"
 
-const QString qtest(qTableName("qtest", __FILE__, QSqlDatabase()));
-
 class tst_QSqlQuery : public QObject
 {
     Q_OBJECT
 
 public:
-    tst_QSqlQuery();
-    virtual ~tst_QSqlQuery();
+    using QObject::QObject;
 
 public slots:
     void initTestCase();
@@ -30,45 +27,20 @@ private slots:
 
 private:
     // returns all database connections
-    void generic_data(const QString &engine=QString());
-    void dropTestTables( QSqlDatabase db );
-    void createTestTables( QSqlDatabase db );
-    void populateTestTables( QSqlDatabase db );
+    void generic_data(const QString &engine = QString());
 
     tst_Databases dbs;
 };
 
 QTEST_MAIN(tst_QSqlQuery)
 
-tst_QSqlQuery::tst_QSqlQuery()
-{
-}
-
-tst_QSqlQuery::~tst_QSqlQuery()
-{
-}
-
 void tst_QSqlQuery::initTestCase()
 {
     dbs.open();
-
-    for ( QStringList::ConstIterator it = dbs.dbNames.begin(); it != dbs.dbNames.end(); ++it ) {
-        QSqlDatabase db = QSqlDatabase::database(( *it ) );
-        CHECK_DATABASE( db );
-        dropTestTables( db ); //in case of leftovers
-        createTestTables( db );
-        populateTestTables( db );
-    }
 }
 
 void tst_QSqlQuery::cleanupTestCase()
 {
-    for ( QStringList::ConstIterator it = dbs.dbNames.begin(); it != dbs.dbNames.end(); ++it ) {
-        QSqlDatabase db = QSqlDatabase::database(( *it ) );
-        CHECK_DATABASE( db );
-        dropTestTables( db );
-    }
-
     dbs.close();
 }
 
@@ -78,29 +50,11 @@ void tst_QSqlQuery::init()
 
 void tst_QSqlQuery::cleanup()
 {
-    QFETCH( QString, dbName );
-    QSqlDatabase db = QSqlDatabase::database( dbName );
-    CHECK_DATABASE( db );
-    const QSqlDriver::DbmsType dbType = tst_Databases::getDatabaseType(db);
-
-    if ( QTest::currentTestFunction() == QLatin1String( "numRowsAffected" )
-            || QTest::currentTestFunction() == QLatin1String( "transactions" )
-            || QTest::currentTestFunction() == QLatin1String( "size" )
-            || QTest::currentTestFunction() == QLatin1String( "isActive" )
-            || QTest::currentTestFunction() == QLatin1String( "lastInsertId" ) ) {
-        populateTestTables( db );
-    }
-
-    if (QTest::currentTestFailed() && (dbType == QSqlDriver::Oracle || db.driverName().startsWith("QODBC"))) {
-        //since Oracle ODBC totally craps out on error, we init again
-        db.close();
-        db.open();
-    }
 }
 
-void tst_QSqlQuery::generic_data(const QString& engine)
+void tst_QSqlQuery::generic_data(const QString &engine)
 {
-    if ( dbs.fillTestTable(engine) == 0 ) {
+    if (dbs.fillTestTable(engine) == 0) {
         if (engine.isEmpty())
            QSKIP( "No database drivers are available in this Qt configuration");
         else
@@ -108,153 +62,48 @@ void tst_QSqlQuery::generic_data(const QString& engine)
     }
 }
 
-void tst_QSqlQuery::dropTestTables( QSqlDatabase db )
-{
-    QSqlDriver::DbmsType dbType = tst_Databases::getDatabaseType(db);
-    QStringList tablenames;
-    // drop all the table in case a testcase failed
-    tablenames <<  qtest
-               << qTableName("qtest_null", __FILE__, db)
-               << qTableName("qtest_blob", __FILE__, db)
-               << qTableName("qtest_bittest", __FILE__, db)
-               << qTableName("qtest_nullblob", __FILE__, db)
-               << qTableName("qtest_rawtest", __FILE__, db)
-               << qTableName("qtest_precision", __FILE__, db)
-               << qTableName("qtest_prepare", __FILE__, db)
-               << qTableName("qtestj1", __FILE__, db)
-               << qTableName("qtestj2", __FILE__, db)
-               << qTableName("char1Select", __FILE__, db)
-               << qTableName("char1SU", __FILE__, db)
-               << qTableName("qxmltest", __FILE__, db)
-               << qTableName("qtest_exerr", __FILE__, db)
-               << qTableName("qtest_empty", __FILE__, db)
-               << qTableName("clobby", __FILE__, db)
-               << qTableName("bindtest", __FILE__, db)
-               << qTableName("more_results", __FILE__, db)
-               << qTableName("blobstest", __FILE__, db)
-               << qTableName("oraRowId", __FILE__, db)
-               << qTableName("qtest_batch", __FILE__, db)
-               << qTableName("bug6421", __FILE__, db).toUpper()
-               << qTableName("bug5765", __FILE__, db)
-               << qTableName("bug6852", __FILE__, db)
-               << qTableName("qtest_lockedtable", __FILE__, db)
-               << qTableName("Planet", __FILE__, db)
-               << qTableName("task_250026", __FILE__, db)
-               << qTableName("task_234422", __FILE__, db)
-               << qTableName("test141895", __FILE__, db)
-               << qTableName("qtest_oraOCINumber", __FILE__, db);
-
-    if (dbType == QSqlDriver::PostgreSQL)
-        tablenames << qTableName("task_233829", __FILE__, db);
-
-    if (dbType == QSqlDriver::SQLite)
-        tablenames << qTableName("record_sqlite", __FILE__, db);
-
-    if (dbType == QSqlDriver::MSSqlServer || dbType == QSqlDriver::Oracle)
-        tablenames << qTableName("qtest_longstr", __FILE__, db);
-
-    if (dbType == QSqlDriver::MSSqlServer)
-        db.exec("DROP PROCEDURE " + qTableName("test141895_proc", __FILE__, db));
-
-    if (dbType == QSqlDriver::MySqlServer)
-        db.exec("DROP PROCEDURE IF EXISTS "+qTableName("bug6852_proc", __FILE__, db));
-
-    tst_Databases::safeDropTables( db, tablenames );
-
-    if (dbType == QSqlDriver::Oracle) {
-        QSqlQuery q( db );
-        q.exec("DROP PACKAGE " + qTableName("pkg", __FILE__, db));
-    }
-}
-
-void tst_QSqlQuery::createTestTables( QSqlDatabase db )
-{
-    const QString qtestNull = qTableName("qtest_null", __FILE__, db);
-    QSqlQuery q( db );
-    QSqlDriver::DbmsType dbType = tst_Databases::getDatabaseType(db);
-    if (dbType == QSqlDriver::MySqlServer)
-        // ### stupid workaround until we find a way to hardcode this
-        // in the MySQL server startup script
-        q.exec( "set table_type=innodb" );
-    else if (dbType == QSqlDriver::PostgreSQL)
-        QVERIFY_SQL( q, exec("set client_min_messages='warning'"));
-
-    if (dbType == QSqlDriver::PostgreSQL)
-        QVERIFY_SQL( q, exec( "create table " + qtest + " (id serial NOT NULL, t_varchar varchar(20), t_char char(20), primary key(id)) WITH OIDS" ) );
-    else
-        QVERIFY_SQL( q, exec( "create table " + qtest + " (id int "+tst_Databases::autoFieldName(db) +" NOT NULL, t_varchar varchar(20), t_char char(20), primary key(id))" ) );
-
-    if (dbType == QSqlDriver::MSSqlServer || dbType == QSqlDriver::Sybase)
-        QVERIFY_SQL(q, exec("create table " + qtestNull + " (id int null, t_varchar varchar(20) null)"));
-    else
-        QVERIFY_SQL(q, exec("create table " + qtestNull + " (id int, t_varchar varchar(20))"));
-}
-
-void tst_QSqlQuery::populateTestTables( QSqlDatabase db )
-{
-    QSqlQuery q( db );
-    const QString qtest_null(qTableName("qtest_null", __FILE__, db));
-    q.exec( "delete from " + qtest );
-    QVERIFY_SQL( q, exec( "insert into " + qtest + " values (1, 'VarChar1', 'Char1')" ) );
-    QVERIFY_SQL( q, exec( "insert into " + qtest + " values (2, 'VarChar2', 'Char2')" ) );
-    QVERIFY_SQL( q, exec( "insert into " + qtest + " values (3, 'VarChar3', 'Char3')" ) );
-    QVERIFY_SQL( q, exec( "insert into " + qtest + " values (4, 'VarChar4', 'Char4')" ) );
-    QVERIFY_SQL( q, exec( "insert into " + qtest + " values (5, 'VarChar5', 'Char5')" ) );
-
-    q.exec( "delete from " + qtest_null );
-    QVERIFY_SQL( q, exec( "insert into " + qtest_null + " values (0, NULL)" ) );
-    QVERIFY_SQL( q, exec( "insert into " + qtest_null + " values (1, 'n')" ) );
-    QVERIFY_SQL( q, exec( "insert into " + qtest_null + " values (2, 'i')" ) );
-    QVERIFY_SQL( q, exec( "insert into " + qtest_null + " values (3, NULL)" ) );
-}
-
 void tst_QSqlQuery::benchmark()
 {
-    QFETCH( QString, dbName );
-    QSqlDatabase db = QSqlDatabase::database( dbName );
-    CHECK_DATABASE( db );
+    QFETCH(QString, dbName);
+    QSqlDatabase db = QSqlDatabase::database(dbName);
+    CHECK_DATABASE(db);
     QSqlQuery q(db);
-    const QString tableName(qTableName("benchmark", __FILE__, db));
+    TableScope ts(db, "benchmark", __FILE__);
 
-    tst_Databases::safeDropTable( db, tableName );
-
-    QVERIFY_SQL(q, exec("CREATE TABLE "+tableName+"(\n"
+    QVERIFY_SQL(q, exec("CREATE TABLE " + ts.tableName() + "(\n"
                         "MainKey INT NOT NULL,\n"
                         "OtherTextCol VARCHAR(45) NOT NULL,\n"
-                        "PRIMARY KEY(`MainKey`))"));
+                        "PRIMARY KEY(MainKey))"));
 
     int i=1;
 
     QBENCHMARK {
-        QVERIFY_SQL(q, exec("INSERT INTO "+tableName+" VALUES("+QString::number(i)+", \"Value"+QString::number(i)+"\")"));
+        const QString num = QString::number(i);
+        QVERIFY_SQL(q, exec("INSERT INTO " + ts.tableName() + " VALUES(" + num + ", 'Value" + num + "')"));
         i++;
     }
-
-    tst_Databases::safeDropTable( db, tableName );
 }
 
 void tst_QSqlQuery::benchmarkSelectPrepared()
 {
-    QFETCH( QString, dbName );
+    QFETCH(QString, dbName);
     QSqlDatabase db = QSqlDatabase::database(dbName);
     CHECK_DATABASE(db);
     QSqlQuery q(db);
-    const QString tableName(qTableName("benchmark", __FILE__, db));
+    TableScope ts(db, "benchmark", __FILE__);
 
-    tst_Databases::safeDropTable(db, tableName);
-
-    QVERIFY_SQL(q, exec("CREATE TABLE " + tableName + "(id INT NOT NULL)"));
+    QVERIFY_SQL(q, exec("CREATE TABLE " + ts.tableName() + "(id INT NOT NULL)"));
 
     const int NUM_ROWS = 1000;
     int expectedSum = 0;
-    QString fillQuery = "INSERT INTO " + tableName + " VALUES (0)";
+    QString fillQuery = "INSERT INTO " + ts.tableName() + " VALUES (0)";
     for (int i = 1; i < NUM_ROWS; ++i) {
         fillQuery += ", (" + QString::number(i) + QLatin1Char(')');
         expectedSum += i;
     }
     QVERIFY_SQL(q, exec(fillQuery));
 
-    QVERIFY_SQL(q, prepare("SELECT id FROM "+tableName));
+    QVERIFY_SQL(q, prepare("SELECT id FROM " + ts.tableName()));
     QBENCHMARK {
         QVERIFY_SQL(q, exec());
         int sum = 0;
@@ -264,8 +113,6 @@ void tst_QSqlQuery::benchmarkSelectPrepared()
 
         QCOMPARE(sum, expectedSum);
     }
-
-    tst_Databases::safeDropTable(db, tableName);
 }
 
 #include "main.moc"
diff --git a/tests/benchmarks/sql/kernel/qsqlrecord/tst_bench_qsqlrecord.cpp b/tests/benchmarks/sql/kernel/qsqlrecord/tst_bench_qsqlrecord.cpp
index ae1b92a3..62298a6f 100644
--- a/tests/benchmarks/sql/kernel/qsqlrecord/tst_bench_qsqlrecord.cpp
+++ b/tests/benchmarks/sql/kernel/qsqlrecord/tst_bench_qsqlrecord.cpp
@@ -6,8 +6,6 @@
 
 #include "../../../../auto/sql/kernel/qsqldatabase/tst_databases.h"
 
-const QString qtest(qTableName("qtest", __FILE__, QSqlDatabase()));
-
 class tst_QSqlRecord : public QObject
 {
     Q_OBJECT
@@ -27,9 +25,6 @@ private slots:
 
 private:
     void generic_data(const QString &engine = QString());
-    void dropTestTables(QSqlDatabase db);
-    void createTestTables(QSqlDatabase db);
-    void populateTestTables(QSqlDatabase db);
 
     tst_Databases dbs;
 };
@@ -39,38 +34,15 @@ QTEST_MAIN(tst_QSqlRecord)
 void tst_QSqlRecord::initTestCase()
 {
     dbs.open();
-    for (const auto &dbName : std::as_const(dbs.dbNames)) {
-        QSqlDatabase db = QSqlDatabase::database(dbName);
-        CHECK_DATABASE(db);
-        dropTestTables(db); // In case of leftovers
-        createTestTables(db);
-        populateTestTables(db);
-    }
 }
 
 void tst_QSqlRecord::cleanupTestCase()
 {
-    for (const auto &dbName : std::as_const(dbs.dbNames)) {
-        QSqlDatabase db = QSqlDatabase::database(dbName);
-        CHECK_DATABASE(db);
-        dropTestTables(db);
-    }
     dbs.close();
 }
 
 void tst_QSqlRecord::cleanup()
 {
-    QFETCH(QString, dbName);
-    QSqlDatabase db = QSqlDatabase::database(dbName);
-    CHECK_DATABASE(db);
-    const QSqlDriver::DbmsType dbType = tst_Databases::getDatabaseType(db);
-
-    if (QTest::currentTestFailed() && (dbType == QSqlDriver::Oracle ||
-                                       db.driverName().startsWith("QODBC"))) {
-        // Since Oracle ODBC has a problem when encountering an error, we init again
-        db.close();
-        db.open();
-    }
 }
 
 void tst_QSqlRecord::generic_data(const QString &engine)
@@ -83,74 +55,28 @@ void tst_QSqlRecord::generic_data(const QString &engine)
     }
 }
 
-void tst_QSqlRecord::dropTestTables(QSqlDatabase db)
-{
-    QSqlDriver::DbmsType dbType = tst_Databases::getDatabaseType(db);
-    QStringList tablenames;
-    // drop all the tables in case a testcase failed
-    tablenames << qtest
-               << qTableName("record", __FILE__, db);
-    tst_Databases::safeDropTables(db, tablenames);
-
-    if (dbType == QSqlDriver::Oracle) {
-        QSqlQuery q(db);
-        q.exec("DROP PACKAGE " + qTableName("pkg", __FILE__, db));
-    }
-}
-
-void tst_QSqlRecord::createTestTables(QSqlDatabase db)
-{
-    QSqlQuery q(db);
-    switch (tst_Databases::getDatabaseType(db)) {
-        case QSqlDriver::PostgreSQL:
-            QVERIFY_SQL(q, exec("set client_min_messages='warning'"));
-            QVERIFY_SQL(q, exec("create table " + qtest + " (id serial NOT NULL, t_varchar varchar(20), "
-                                "t_char char(20), primary key(id)) WITH OIDS"));
-            break;
-        case QSqlDriver::MySqlServer:
-            QVERIFY_SQL(q, exec("set table_type=innodb"));
-            Q_FALLTHROUGH();
-        default:
-            QVERIFY_SQL(q, exec("create table " + qtest + " (id int " + tst_Databases::autoFieldName(db) +
-                                " NOT NULL, t_varchar varchar(20), t_char char(20), primary key(id))"));
-            break;
-    }
-}
-
-void tst_QSqlRecord::populateTestTables(QSqlDatabase db)
-{
-    QSqlQuery q(db);
-    QVERIFY_SQL(q, exec("delete from " + qtest));
-    QVERIFY_SQL(q, exec("insert into " + qtest + " values (1, 'VarChar1', 'Char1')"));
-    QVERIFY_SQL(q, exec("insert into " + qtest + " values (2, 'VarChar2', 'Char2')"));
-    QVERIFY_SQL(q, exec("insert into " + qtest + " values (3, 'VarChar3', 'Char3')"));
-    QVERIFY_SQL(q, exec("insert into " + qtest + " values (4, 'VarChar4', 'Char4')"));
-    QVERIFY_SQL(q, exec("insert into " + qtest + " values (5, 'VarChar5', 'Char5')"));
-}
-
 void tst_QSqlRecord::benchmarkRecord()
 {
     QFETCH(QString, dbName);
     QSqlDatabase db = QSqlDatabase::database(dbName);
     CHECK_DATABASE(db);
-    const auto tableName = qTableName("record", __FILE__, db);
+    TableScope ts(db, "record", __FILE__);
     {
         QSqlQuery qry(db);
-        QVERIFY_SQL(qry, exec("create table " + tableName +
+        QVERIFY_SQL(qry, exec("create table " + ts.tableName() +
                               " (id int NOT NULL, t_varchar varchar(20), "
                               "t_char char(20), primary key(id))"));
         // Limit to 500: at 600, the set-up takes nearly 5 minutes
         for (int i = 0; i < 500; i++)
-            QVERIFY_SQL(qry, exec(QString("INSERT INTO " + tableName +
+            QVERIFY_SQL(qry, exec(QString("INSERT INTO " + ts.tableName() +
                                           " VALUES (%1, 'VarChar%1', 'Char%1')").arg(i)));
-        QVERIFY_SQL(qry, exec(QString("SELECT * from ") + tableName));
+        QVERIFY_SQL(qry, exec(QString("SELECT * from ") + ts.tableName()));
         QBENCHMARK {
             while (qry.next())
                 qry.record();
             QVERIFY(qry.seek(0));
         }
     }
-    tst_Databases::safeDropTables(db, QStringList() << tableName);
 }
 
 void tst_QSqlRecord::benchFieldName()
@@ -174,7 +100,6 @@ void tst_QSqlRecord::benchFieldIndex()
     QCOMPARE(tst_Databases::getDatabaseType(db), QSqlDriver::PostgreSQL);
     QSqlQuery qry(db);
     QVERIFY_SQL(qry, exec("SELECT GENERATE_SERIES(1,5000) AS r"));
-    qry = db.exec("SELECT GENERATE_SERIES(1,5000) AS r");
     QBENCHMARK {
         while (qry.next())
             qry.value(0);
diff --git a/tests/benchmarks/widgets/graphicsview/qgraphicsview/chiptester/chiptester.cpp b/tests/benchmarks/widgets/graphicsview/qgraphicsview/chiptester/chiptester.cpp
index 447bc546..9e926806 100644
--- a/tests/benchmarks/widgets/graphicsview/qgraphicsview/chiptester/chiptester.cpp
+++ b/tests/benchmarks/widgets/graphicsview/qgraphicsview/chiptester/chiptester.cpp
@@ -79,7 +79,6 @@ void ChipTester::populateScene()
 
     // Populate scene
     int xx = 0;
-    int nitems = 0;
     for (int i = -1100; i < 1100; i += 110) {
         ++xx;
         int yy = 0;
@@ -92,8 +91,6 @@ void ChipTester::populateScene()
             QGraphicsItem *item = new Chip(color, xx, yy);
             item->setPos(QPointF(i, j));
             scene->addItem(item);
-
-            ++nitems;
         }
     }
 }
diff --git a/tests/manual/CMakeLists.txt b/tests/manual/CMakeLists.txt
index abe9ac42..035e14d4 100644
--- a/tests/manual/CMakeLists.txt
+++ b/tests/manual/CMakeLists.txt
@@ -15,9 +15,10 @@ add_subdirectory(gestures)
 add_subdirectory(highdpi)
 add_subdirectory(inputmethodhints)
 add_subdirectory(keypadnavigation)
-#add_subdirectory(lance) # special case qgl.h missing
+#add_subdirectory(lance) # qgl.h missing
 add_subdirectory(qcursor)
 add_subdirectory(qdesktopservices)
+add_subdirectory(qdnslookup)
 add_subdirectory(qgraphicsitem)
 add_subdirectory(qgraphicsitemgroup)
 add_subdirectory(qgraphicslayout/flicker)
@@ -29,11 +30,9 @@ add_subdirectory(qmimedatabase)
 add_subdirectory(qnetconmonitor)
 add_subdirectory(qnetworkaccessmanager/qget)
 add_subdirectory(qnetworkinformation)
-#special case begin
 if (QT_FEATURE_openssl AND UNIX)
     add_subdirectory(qnetworkreply)
 endif()
-#special case end
 if(QT_FEATURE_permissions)
     add_subdirectory(permissions)
 endif()
@@ -77,10 +76,10 @@ if(QT_FEATURE_openssl)
     add_subdirectory(qssloptions)
 endif()
 if(QT_FEATURE_opengl)
-    # add_subdirectory(qopengltextureblitter) special case broken in dev
+    # add_subdirectory(qopengltextureblitter) # TODO: broken in dev
 endif()
 if(QT_FEATURE_egl AND QT_FEATURE_opengl)
-    # add_subdirectory(qopenglcontext) # special case broken in dev
+    # add_subdirectory(qopenglcontext) # TODO: broken in dev
 endif()
 if(QT_FEATURE_vulkan)
     add_subdirectory(qvulkaninstance)
diff --git a/tests/manual/corelib/time/foreachzone b/tests/manual/corelib/time/foreachzone
new file mode 100644
index 00000000..48067988
--- /dev/null
+++ b/tests/manual/corelib/time/foreachzone
@@ -0,0 +1,30 @@
+#!/bin/sh
+# Usage: foreachzone command [args...]
+#
+# The command is run with eval, so can include embedded shell
+# metacharacters such as | and ||. It is run in a sub-shell, so can
+# change environment or cd to a different directory without
+# complicating later runs of the same command.
+#
+# It is run repeatedly, with the TZ environment variable set to each
+# timezone name in turn, excluding the copies of zoneinfo/ under its
+# posix/ and right/ sub-dirs. Symbolic links are included (as long as
+# they point to valid zone data).
+#
+# For example, in the top level of a build tree,
+#   foreachzone ninja tst_qdate_check
+# will run all the QDate tests in every time zone (this may take some
+# time).
+
+DIR=/usr/share/zoneinfo
+[ -d "$DIR" ] || DIR=/usr/lib/zoneinfo
+
+find $DIR -type d \( -name posix -o -name right \) -prune -o \( -type f -o -type l \) -print \
+    | while read f
+do
+    # To filter out symlinks in zoneinfo/ itself, uncomment this line:
+    # echo "$f" | grep -wq 'zoneinfo/.*/' || [ ! -h "$f" ] || continue
+    # To skip all symlinks, omit the -L here:
+    file -L "$f" | grep -wq 'timezone data .*, version' || continue
+    ( export TZ=${f#*/zoneinfo/}; eval "$@" )
+done
diff --git a/tests/manual/embeddedwindows/CMakeLists.txt b/tests/manual/embeddedwindows/CMakeLists.txt
new file mode 100644
index 00000000..81439863
--- /dev/null
+++ b/tests/manual/embeddedwindows/CMakeLists.txt
@@ -0,0 +1,19 @@
+# Copyright (C) 2023 The Qt Company Ltd.
+# SPDX-License-Identifier: BSD-3-Clause
+
+qt_internal_add_manual_test(embeddedwindows
+    SOURCES
+        main.cpp
+    LIBRARIES
+        Qt::Gui
+)
+
+if(QT_FEATURE_xcb)
+    target_link_libraries(embeddedwindows PRIVATE XCB::XCB)
+endif()
+
+if(APPLE)
+    enable_language(OBJCXX)
+    set_source_files_properties(main.cpp PROPERTIES LANGUAGE OBJCXX)
+    set_property(TARGET embeddedwindows PROPERTY PROPERTY MACOSX_BUNDLE TRUE)
+endif()
diff --git a/tests/manual/embeddedwindows/main.cpp b/tests/manual/embeddedwindows/main.cpp
new file mode 100644
index 00000000..904839cf
--- /dev/null
+++ b/tests/manual/embeddedwindows/main.cpp
@@ -0,0 +1,110 @@
+// Copyright (C) 2023 The Qt Company Ltd.
+// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only WITH Qt-GPL-exception-1.0
+
+#include <QtGui>
+
+#if defined(Q_OS_MACOS) || defined(Q_OS_IOS) || defined(Q_OS_WIN) || QT_CONFIG(xcb)
+#include "../../shared/nativewindow.h"
+#define HAVE_NATIVE_WINDOW
+#endif
+
+#include <QDebug>
+
+class TestWindow : public QRasterWindow
+{
+public:
+    using QRasterWindow::QRasterWindow;
+    TestWindow(const QBrush &brush) : m_brush(brush) {}
+
+protected:
+    void mousePressEvent(QMouseEvent *) override
+    {
+        m_pressed = true;
+        update();
+    }
+
+    void mouseReleaseEvent(QMouseEvent *) override
+    {
+        m_pressed = false;
+        update();
+    }
+
+    void paintEvent(QPaintEvent *) override
+    {
+        QPainter painter(this);
+        painter.setCompositionMode(QPainter::CompositionMode_Source);
+        if (!mask().isNull())
+            painter.setClipRegion(mask());
+        painter.fillRect(QRect(0, 0, width(), height()),
+            m_pressed ? QGradient(QGradient::JuicyPeach) : m_brush);
+    }
+
+private:
+    QBrush m_brush = QGradient(QGradient::DustyGrass);
+    bool m_pressed = false;
+};
+
+int main(int argc, char *argv[])
+{
+    QGuiApplication app(argc, argv);
+
+    TestWindow window{QGradient(QGradient::WinterNeva)};
+    window.resize(500, 500);
+
+    TestWindow *opaqueChildWindow = new TestWindow;
+    opaqueChildWindow->setParent(&window);
+    opaqueChildWindow->setGeometry(50, 50, 100, 100);
+    opaqueChildWindow->showNormal();
+
+    TestWindow *maskedChildWindow = new TestWindow;
+    maskedChildWindow->setParent(&window);
+    maskedChildWindow->setGeometry(200, 50, 100, 100);
+    maskedChildWindow->setMask(QRegion(0, 0, 100, 100, QRegion::Ellipse));
+    maskedChildWindow->showNormal();
+
+    static const QColor transparentGreen = QColor(0, 255, 0, 20);
+    TestWindow *transparentChildWindow = new TestWindow(transparentGreen);
+    // The default surface format of a platform may not include
+    // an alpha, so set it explicitly.
+    QSurfaceFormat format = transparentChildWindow->format();
+    format.setAlphaBufferSize(8);
+    transparentChildWindow->setFormat(format);
+    // FIXME: Windows requires this, even for child windows
+    transparentChildWindow->setFlag(Qt::FramelessWindowHint);
+    transparentChildWindow->setParent(&window);
+    transparentChildWindow->setGeometry(350, 50, 100, 100);
+    transparentChildWindow->showNormal();
+
+#if defined(HAVE_NATIVE_WINDOW)
+    NativeWindow nativeWindow;
+    if (QWindow *foreignWindow = QWindow::fromWinId(nativeWindow)) {
+        foreignWindow->setParent(&window);
+        foreignWindow->setGeometry(50, 200, 100, 100);
+        foreignWindow->showNormal();
+    }
+
+    NativeWindow maskedNativeWindow;
+    if (QWindow *foreignWindow = QWindow::fromWinId(maskedNativeWindow)) {
+        foreignWindow->setParent(&window);
+        foreignWindow->setGeometry(200, 200, 100, 100);
+        foreignWindow->setMask(QRegion(0, 0, 100, 100, QRegion::Ellipse));
+        foreignWindow->showNormal();
+    }
+
+    NativeWindow nativeParentWindow;
+    if (QWindow *foreignWindow = QWindow::fromWinId(nativeParentWindow)) {
+        foreignWindow->setParent(&window);
+        foreignWindow->setGeometry(50, 350, 100, 100);
+        foreignWindow->showNormal();
+
+        TestWindow *maskedChildWindowOfNativeWindow = new TestWindow;
+        maskedChildWindowOfNativeWindow->setParent(foreignWindow);
+        maskedChildWindowOfNativeWindow->setGeometry(25, 25, 50, 50);
+        maskedChildWindowOfNativeWindow->showNormal();
+    }
+#endif
+
+    window.show();
+
+    return app.exec();
+}
diff --git a/tests/manual/examples/corelib/permissions/CMakeLists.txt b/tests/manual/examples/corelib/permissions/CMakeLists.txt
index 075420e5..39a207b1 100644
--- a/tests/manual/examples/corelib/permissions/CMakeLists.txt
+++ b/tests/manual/examples/corelib/permissions/CMakeLists.txt
@@ -17,6 +17,7 @@ qt_standard_project_setup()
 qt_add_executable(permissions
     MANUAL_FINALIZATION
     main.cpp
+    android/AndroidManifest.xml
 )
 
 set_target_properties(permissions PROPERTIES
diff --git a/tests/manual/examples/qpa/qrasterwindow/main.cpp b/tests/manual/examples/qpa/qrasterwindow/main.cpp
index b991a042..9c245bf8 100644
--- a/tests/manual/examples/qpa/qrasterwindow/main.cpp
+++ b/tests/manual/examples/qpa/qrasterwindow/main.cpp
@@ -32,7 +32,7 @@ public:
                       QVector3D(0,0,0),
                       QVector3D(0,1,0));
         m_timer.setInterval(16);
-        connect(&m_timer, SIGNAL(timeout()), this, SLOT(update()));
+        connect(&m_timer, &QTimer::timeout, this, qOverload<>(&PaintedWindow::update));
         m_timer.start();
     }
 
diff --git a/tests/manual/examples/widgets/wiggly/CMakeLists.txt b/tests/manual/examples/widgets/wiggly/CMakeLists.txt
new file mode 100644
index 00000000..c529c20b
--- /dev/null
+++ b/tests/manual/examples/widgets/wiggly/CMakeLists.txt
@@ -0,0 +1,38 @@
+# Copyright (C) 2022 The Qt Company Ltd.
+# SPDX-License-Identifier: BSD-3-Clause
+
+cmake_minimum_required(VERSION 3.16)
+project(wiggly LANGUAGES CXX)
+
+if(NOT DEFINED INSTALL_EXAMPLESDIR)
+    set(INSTALL_EXAMPLESDIR "examples")
+endif()
+
+set(INSTALL_EXAMPLEDIR "${INSTALL_EXAMPLESDIR}/widgets/widgets/wiggly")
+
+find_package(Qt6 REQUIRED COMPONENTS Core Gui Widgets)
+
+qt_standard_project_setup()
+
+qt_add_executable(wiggly
+    dialog.cpp dialog.h
+    main.cpp
+    wigglywidget.cpp wigglywidget.h
+)
+
+set_target_properties(wiggly PROPERTIES
+    WIN32_EXECUTABLE TRUE
+    MACOSX_BUNDLE TRUE
+)
+
+target_link_libraries(wiggly PRIVATE
+    Qt6::Core
+    Qt6::Gui
+    Qt6::Widgets
+)
+
+install(TARGETS wiggly
+    RUNTIME DESTINATION "${INSTALL_EXAMPLEDIR}"
+    BUNDLE DESTINATION "${INSTALL_EXAMPLEDIR}"
+    LIBRARY DESTINATION "${INSTALL_EXAMPLEDIR}"
+)
diff --git a/tests/manual/examples/widgets/wiggly/dialog.cpp b/tests/manual/examples/widgets/wiggly/dialog.cpp
new file mode 100644
index 00000000..0f3aa84f
--- /dev/null
+++ b/tests/manual/examples/widgets/wiggly/dialog.cpp
@@ -0,0 +1,27 @@
+// Copyright (C) 2016 The Qt Company Ltd.
+// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
+
+#include "dialog.h"
+#include "wigglywidget.h"
+
+#include <QLineEdit>
+#include <QVBoxLayout>
+
+//! [0]
+Dialog::Dialog(QWidget *parent)
+    : QDialog(parent)
+{
+    WigglyWidget *wigglyWidget = new WigglyWidget;
+    QLineEdit *lineEdit = new QLineEdit;
+
+    QVBoxLayout *layout = new QVBoxLayout(this);
+    layout->addWidget(wigglyWidget);
+    layout->addWidget(lineEdit);
+
+    connect(lineEdit, &QLineEdit::textChanged, wigglyWidget, &WigglyWidget::setText);
+    lineEdit->setText(u8"🖖 " + tr("Hello world!"));
+
+    setWindowTitle(tr("Wiggly"));
+    resize(360, 145);
+}
+//! [0]
diff --git a/tests/manual/examples/widgets/wiggly/dialog.h b/tests/manual/examples/widgets/wiggly/dialog.h
new file mode 100644
index 00000000..1f27668f
--- /dev/null
+++ b/tests/manual/examples/widgets/wiggly/dialog.h
@@ -0,0 +1,19 @@
+// Copyright (C) 2016 The Qt Company Ltd.
+// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
+
+#ifndef DIALOG_H
+#define DIALOG_H
+
+#include <QDialog>
+
+//! [0]
+class Dialog : public QDialog
+{
+    Q_OBJECT
+
+public:
+    explicit Dialog(QWidget *parent = nullptr);
+};
+//! [0]
+
+#endif
diff --git a/tests/manual/examples/widgets/wiggly/main.cpp b/tests/manual/examples/widgets/wiggly/main.cpp
new file mode 100644
index 00000000..e7df19b6
--- /dev/null
+++ b/tests/manual/examples/widgets/wiggly/main.cpp
@@ -0,0 +1,16 @@
+// Copyright (C) 2016 The Qt Company Ltd.
+// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
+
+#include "dialog.h"
+
+#include <QApplication>
+
+int main(int argc, char *argv[])
+{
+    QApplication app(argc, argv);
+
+    Dialog dialog;
+    dialog.show();
+
+    return app.exec();
+}
diff --git a/tests/manual/examples/widgets/wiggly/wiggly.pro b/tests/manual/examples/widgets/wiggly/wiggly.pro
new file mode 100644
index 00000000..0e39f18a
--- /dev/null
+++ b/tests/manual/examples/widgets/wiggly/wiggly.pro
@@ -0,0 +1,11 @@
+QT += widgets
+
+HEADERS       = wigglywidget.h \
+                dialog.h
+SOURCES       = wigglywidget.cpp \
+                dialog.cpp \
+                main.cpp
+
+# install
+target.path = $$[QT_INSTALL_EXAMPLES]/widgets/widgets/wiggly
+INSTALLS += target
diff --git a/tests/manual/examples/widgets/wiggly/wigglywidget.cpp b/tests/manual/examples/widgets/wiggly/wigglywidget.cpp
new file mode 100644
index 00000000..3e686a67
--- /dev/null
+++ b/tests/manual/examples/widgets/wiggly/wigglywidget.cpp
@@ -0,0 +1,65 @@
+// Copyright (C) 2016 The Qt Company Ltd.
+// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
+
+#include "wigglywidget.h"
+
+#include <QFontMetrics>
+#include <QPainter>
+#include <QTimerEvent>
+
+//! [0]
+WigglyWidget::WigglyWidget(QWidget *parent)
+    : QWidget(parent), step(0)
+{
+    setBackgroundRole(QPalette::Midlight);
+    setAutoFillBackground(true);
+
+    QFont newFont = font();
+    newFont.setPointSize(newFont.pointSize() + 20);
+    setFont(newFont);
+
+    timer.start(60, this);
+}
+//! [0]
+
+//! [1]
+void WigglyWidget::paintEvent(QPaintEvent * /* event */)
+//! [1] //! [2]
+{
+    static constexpr int sineTable[16] = {
+        0, 38, 71, 92, 100, 92, 71, 38, 0, -38, -71, -92, -100, -92, -71, -38
+    };
+
+    QFontMetrics metrics(font());
+    int x = (width() - metrics.horizontalAdvance(text)) / 2;
+    int y = (height() + metrics.ascent() - metrics.descent()) / 2;
+    QColor color;
+//! [2]
+
+//! [3]
+    QPainter painter(this);
+//! [3] //! [4]
+    int offset = 0;
+    for (char32_t codePoint : text.toUcs4()) {
+        int index = (step + offset++) % 16;
+        color.setHsv((15 - index) * 16, 255, 191);
+        painter.setPen(color);
+        QString symbol = QString::fromUcs4(&codePoint, 1);
+        painter.drawText(x, y - ((sineTable[index] * metrics.height()) / 400), symbol);
+        x += metrics.horizontalAdvance(symbol);
+    }
+}
+//! [4]
+
+//! [5]
+void WigglyWidget::timerEvent(QTimerEvent *event)
+//! [5] //! [6]
+{
+    if (event->timerId() == timer.timerId()) {
+        ++step;
+        update();
+    } else {
+        QWidget::timerEvent(event);
+    }
+//! [6]
+}
diff --git a/tests/manual/examples/widgets/wiggly/wigglywidget.h b/tests/manual/examples/widgets/wiggly/wigglywidget.h
new file mode 100644
index 00000000..1c21e522
--- /dev/null
+++ b/tests/manual/examples/widgets/wiggly/wigglywidget.h
@@ -0,0 +1,32 @@
+// Copyright (C) 2016 The Qt Company Ltd.
+// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
+
+#ifndef WIGGLYWIDGET_H
+#define WIGGLYWIDGET_H
+
+#include <QBasicTimer>
+#include <QWidget>
+
+//! [0]
+class WigglyWidget : public QWidget
+{
+    Q_OBJECT
+
+public:
+    WigglyWidget(QWidget *parent = nullptr);
+
+public slots:
+    void setText(const QString &newText) { text = newText; }
+
+protected:
+    void paintEvent(QPaintEvent *event) override;
+    void timerEvent(QTimerEvent *event) override;
+
+private:
+    QBasicTimer timer;
+    QString text;
+    int step;
+};
+//! [0]
+
+#endif
diff --git a/tests/manual/fontfeatures/fontfeatures.pro b/tests/manual/fontfeatures/fontfeatures.pro
new file mode 100644
index 00000000..62769072
--- /dev/null
+++ b/tests/manual/fontfeatures/fontfeatures.pro
@@ -0,0 +1,17 @@
+TEMPLATE = app
+TARGET = fontfeatures
+INCLUDEPATH += .
+QT += widgets
+
+# You can make your code fail to compile if you use deprecated APIs.
+# In order to do so, uncomment the following line.
+# Please consult the documentation of the deprecated API in order to know
+# how to port your code away from it.
+# You can also select to disable deprecated APIs only up to a certain version of Qt.
+#DEFINES += QT_DISABLE_DEPRECATED_UP_TO=0x060000 # disables all APIs deprecated in Qt 6.0.0 and earlier
+
+# Input
+HEADERS += mainwindow.h
+FORMS += mainwindow.ui
+SOURCES += main.cpp \
+           mainwindow.cpp \
diff --git a/tests/manual/fontfeatures/main.cpp b/tests/manual/fontfeatures/main.cpp
new file mode 100644
index 00000000..9c5bc178
--- /dev/null
+++ b/tests/manual/fontfeatures/main.cpp
@@ -0,0 +1,14 @@
+// Copyright (C) 2023 The Qt Company Ltd.
+// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only WITH Qt-GPL-exception-1.0
+
+#include "mainwindow.h"
+
+#include <QApplication>
+
+int main(int argc, char *argv[])
+{
+    QApplication a(argc, argv);
+    MainWindow w;
+    w.show();
+    return a.exec();
+}
diff --git a/tests/manual/fontfeatures/mainwindow.cpp b/tests/manual/fontfeatures/mainwindow.cpp
new file mode 100644
index 00000000..534cee88
--- /dev/null
+++ b/tests/manual/fontfeatures/mainwindow.cpp
@@ -0,0 +1,225 @@
+// Copyright (C) 2023 The Qt Company Ltd.
+// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only WITH Qt-GPL-exception-1.0
+
+#include "mainwindow.h"
+#include "ui_mainwindow.h"
+
+MainWindow::MainWindow(QWidget *parent)
+    : QMainWindow(parent)
+    , ui(new Ui::MainWindow)
+{
+    ui->setupUi(this);
+
+    setup();
+    updateSampleText();
+}
+
+MainWindow::~MainWindow()
+{
+    delete ui;
+}
+
+void MainWindow::updateSampleText()
+{
+    QFont font = ui->fontComboBox->currentFont();
+    font.setPixelSize(54);
+
+    for (int i = 0; i < ui->lwFeatures->count(); ++i) {
+        QListWidgetItem *it = ui->lwFeatures->item(i);
+        if (it->checkState() != Qt::PartiallyChecked) {
+            QByteArray ba = it->text().toLatin1();
+            font.setFeature(ba, !!it->checkState());
+        }
+    }
+
+    ui->lSampleDisplay->setFont(font);
+    ui->lSampleDisplay->setText(ui->leSampleText->text());
+}
+
+void MainWindow::enableAll()
+{
+    for (int i = 0; i < ui->lwFeatures->count(); ++i) {
+        QListWidgetItem *it = ui->lwFeatures->item(i);
+        it->setCheckState(Qt::Checked);
+    }
+}
+
+void MainWindow::disableAll()
+{
+    for (int i = 0; i < ui->lwFeatures->count(); ++i) {
+        QListWidgetItem *it = ui->lwFeatures->item(i);
+        it->setCheckState(Qt::Unchecked);
+    }
+}
+
+void MainWindow::reset()
+{
+    for (int i = 0; i < ui->lwFeatures->count(); ++i) {
+        QListWidgetItem *it = ui->lwFeatures->item(i);
+        it->setCheckState(Qt::PartiallyChecked);
+    }
+}
+
+void MainWindow::setup()
+{
+    connect(ui->fontComboBox, &QFontComboBox::currentFontChanged, this, &MainWindow::updateSampleText);
+    connect(ui->leSampleText, &QLineEdit::textChanged, this, &MainWindow::updateSampleText);
+    connect(ui->lwFeatures, &QListWidget::itemChanged, this, &MainWindow::updateSampleText);
+    connect(ui->pbEnableAll, &QPushButton::clicked, this, &MainWindow::enableAll);
+    connect(ui->pbDisableAll, &QPushButton::clicked, this, &MainWindow::disableAll);
+    connect(ui->pbReset, &QPushButton::clicked, this, &MainWindow::reset);
+
+    QList<QByteArray> featureList =
+    {
+        "aalt",
+        "abvf",
+        "abvm",
+        "abvs",
+        "afrc",
+        "akhn",
+        "blwf",
+        "blwm",
+        "blws",
+        "calt",
+        "case",
+        "ccmp",
+        "cfar",
+        "chws",
+        "cjct",
+        "clig",
+        "cpct",
+        "cpsp",
+        "cswh",
+        "curs",
+        "cv01",
+        "c2pc",
+        "c2sc",
+        "dist",
+        "dlig",
+        "dnom",
+        "dtls",
+        "expt",
+        "falt",
+        "fin2",
+        "fin3",
+        "fina",
+        "flac",
+        "frac",
+        "fwid",
+        "half",
+        "haln",
+        "halt",
+        "hist",
+        "hkna",
+        "hlig",
+        "hngl",
+        "hojo",
+        "hwid",
+        "init",
+        "isol",
+        "ital",
+        "jalt",
+        "jp78",
+        "jp83",
+        "jp90",
+        "jp04",
+        "kern",
+        "lfbd",
+        "liga",
+        "ljmo",
+        "lnum",
+        "locl",
+        "ltra",
+        "ltrm",
+        "mark",
+        "med2",
+        "medi",
+        "mgrk",
+        "mkmk",
+        "mset",
+        "nalt",
+        "nlck",
+        "nukt",
+        "numr",
+        "onum",
+        "opbd",
+        "ordn",
+        "ornm",
+        "palt",
+        "pcap",
+        "pkna",
+        "pnum",
+        "pref",
+        "pres",
+        "pstf",
+        "psts",
+        "pwid",
+        "qwid",
+        "rand",
+        "rclt",
+        "rkrf",
+        "rlig",
+        "rphf",
+        "rtbd",
+        "rtla",
+        "rtlm",
+        "ruby",
+        "rvrn",
+        "salt",
+        "sinf",
+        "size",
+        "smcp",
+        "smpl",
+        "ss01",
+        "ss02",
+        "ss03",
+        "ss04",
+        "ss05",
+        "ss06",
+        "ss07",
+        "ss08",
+        "ss09",
+        "ss10",
+        "ss11",
+        "ss12",
+        "ss13",
+        "ss14",
+        "ss15",
+        "ss16",
+        "ss17",
+        "ss18",
+        "ss19",
+        "ss20",
+        "ssty",
+        "stch",
+        "subs",
+        "sups",
+        "swsh",
+        "titl",
+        "tjmo",
+        "tnam",
+        "tnum",
+        "trad",
+        "twid",
+        "unic",
+        "valt",
+        "vatu",
+        "vchw",
+        "vert",
+        "vhal",
+        "vjmo",
+        "vkna",
+        "vkrn",
+        "vpal",
+        "vrt2",
+        "vrtr",
+        "zero"
+    };
+
+    for (auto it = featureList.constBegin(); it != featureList.constEnd(); ++it) {
+        QListWidgetItem *item = new QListWidgetItem(*it);
+        item->setFlags(Qt::ItemIsUserTristate | Qt::ItemIsUserCheckable | Qt::ItemIsEnabled);
+        item->setCheckState(Qt::PartiallyChecked);
+        ui->lwFeatures->addItem(item);
+    }
+}
diff --git a/tests/manual/fontfeatures/mainwindow.h b/tests/manual/fontfeatures/mainwindow.h
new file mode 100644
index 00000000..c8248e75
--- /dev/null
+++ b/tests/manual/fontfeatures/mainwindow.h
@@ -0,0 +1,32 @@
+// Copyright (C) 2023 The Qt Company Ltd.
+// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only WITH Qt-GPL-exception-1.0
+
+#ifndef MAINWINDOW_H
+#define MAINWINDOW_H
+
+#include <QMainWindow>
+
+QT_BEGIN_NAMESPACE
+namespace Ui { class MainWindow; }
+QT_END_NAMESPACE
+
+class MainWindow : public QMainWindow
+{
+    Q_OBJECT
+
+public:
+    MainWindow(QWidget *parent = nullptr);
+    ~MainWindow();
+
+private slots:
+    void updateSampleText();
+    void enableAll();
+    void disableAll();
+    void reset();
+
+private:
+    Ui::MainWindow *ui;
+
+    void setup();
+};
+#endif // MAINWINDOW_H
diff --git a/tests/manual/fontfeatures/mainwindow.ui b/tests/manual/fontfeatures/mainwindow.ui
new file mode 100644
index 00000000..17f56c5a
--- /dev/null
+++ b/tests/manual/fontfeatures/mainwindow.ui
@@ -0,0 +1,116 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<ui version="4.0">
+ <class>MainWindow</class>
+ <widget class="QMainWindow" name="MainWindow">
+  <property name="geometry">
+   <rect>
+    <x>0</x>
+    <y>0</y>
+    <width>800</width>
+    <height>600</height>
+   </rect>
+  </property>
+  <property name="windowTitle">
+   <string>MainWindow</string>
+  </property>
+  <widget class="QWidget" name="centralwidget">
+   <layout class="QHBoxLayout" name="horizontalLayout_3">
+    <item>
+     <layout class="QVBoxLayout" name="verticalLayout">
+      <item>
+       <widget class="QFontComboBox" name="fontComboBox"/>
+      </item>
+      <item>
+       <layout class="QHBoxLayout" name="horizontalLayout">
+        <item>
+         <widget class="QLabel" name="label">
+          <property name="text">
+           <string>Sample text:</string>
+          </property>
+         </widget>
+        </item>
+        <item>
+         <widget class="QLineEdit" name="leSampleText">
+          <property name="text">
+           <string>Foobar</string>
+          </property>
+         </widget>
+        </item>
+       </layout>
+      </item>
+      <item>
+       <layout class="QHBoxLayout" name="horizontalLayout_2">
+        <item>
+         <widget class="QPushButton" name="pbEnableAll">
+          <property name="text">
+           <string>Enable all</string>
+          </property>
+         </widget>
+        </item>
+        <item>
+         <widget class="QPushButton" name="pbDisableAll">
+          <property name="text">
+           <string>Disable all</string>
+          </property>
+         </widget>
+        </item>
+        <item>
+         <widget class="QPushButton" name="pbReset">
+          <property name="text">
+           <string>Reset</string>
+          </property>
+         </widget>
+        </item>
+       </layout>
+      </item>
+      <item>
+       <widget class="QListWidget" name="lwFeatures">
+        <property name="alternatingRowColors">
+         <bool>true</bool>
+        </property>
+        <property name="flow">
+         <enum>QListView::TopToBottom</enum>
+        </property>
+        <property name="isWrapping" stdset="0">
+         <bool>false</bool>
+        </property>
+        <property name="viewMode">
+         <enum>QListView::ListMode</enum>
+        </property>
+        <property name="uniformItemSizes">
+         <bool>true</bool>
+        </property>
+       </widget>
+      </item>
+     </layout>
+    </item>
+    <item>
+     <widget class="QLabel" name="lSampleDisplay">
+      <property name="sizePolicy">
+       <sizepolicy hsizetype="MinimumExpanding" vsizetype="Preferred">
+        <horstretch>0</horstretch>
+        <verstretch>0</verstretch>
+       </sizepolicy>
+      </property>
+      <property name="text">
+       <string>LABEL</string>
+      </property>
+     </widget>
+    </item>
+   </layout>
+  </widget>
+  <widget class="QMenuBar" name="menubar">
+   <property name="geometry">
+    <rect>
+     <x>0</x>
+     <y>0</y>
+     <width>800</width>
+     <height>21</height>
+    </rect>
+   </property>
+  </widget>
+  <widget class="QStatusBar" name="statusbar"/>
+ </widget>
+ <resources/>
+ <connections/>
+</ui>
diff --git a/tests/manual/inputdevices/CMakeLists.txt b/tests/manual/inputdevices/CMakeLists.txt
new file mode 100644
index 00000000..9440705a
--- /dev/null
+++ b/tests/manual/inputdevices/CMakeLists.txt
@@ -0,0 +1,17 @@
+project(inputdevices)
+cmake_minimum_required(VERSION 3.19)
+
+find_package(Qt6 REQUIRED COMPONENTS Core Gui Widgets)
+
+qt_add_executable(inputdevices
+    main.cpp
+    inputdevicemodel.h inputdevicemodel.cpp
+)
+
+set_target_properties(inputdevices PROPERTIES
+    AUTOMOC TRUE
+)
+
+target_link_libraries(inputdevices PUBLIC
+    Qt::Widgets
+)
diff --git a/tests/manual/inputdevices/inputdevicemodel.cpp b/tests/manual/inputdevices/inputdevicemodel.cpp
new file mode 100644
index 00000000..8168ae64
--- /dev/null
+++ b/tests/manual/inputdevices/inputdevicemodel.cpp
@@ -0,0 +1,264 @@
+// Copyright (C) 2023 The Qt Company Ltd.
+// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
+
+#include "inputdevicemodel.h"
+
+#include <QEvent>
+#include <QInputDevice>
+#include <QLoggingCategory>
+#include <QMetaEnum>
+#include <QPointingDevice>
+
+Q_LOGGING_CATEGORY(lcIPDM, "qt.inputdevicemodel")
+
+static QString enumToString(const QObject *obj, const char* enumName, int enumValue)
+{
+    const auto *metaobj = obj->metaObject();
+    Q_ASSERT(metaobj);
+    const int enumIdx = metaobj->indexOfEnumerator(enumName);
+    if (enumIdx < 0)
+        return {};
+    Q_ASSERT(metaobj->enumerator(enumIdx).isValid());
+    const char *ret = metaobj->enumerator(enumIdx).valueToKey(enumValue);
+    if (!ret)
+        return {};
+    return QString::fromUtf8(ret);
+}
+
+static QString capabilitiesString(const QInputDevice *dev)
+{
+    QStringList ret;
+    const auto caps = dev->capabilities();
+    if (caps.testFlag(QInputDevice::Capability::Position))
+        ret << InputDeviceModel::tr("pos");
+    if (caps.testFlag(QInputDevice::Capability::Area))
+        ret << InputDeviceModel::tr("area");
+    if (caps.testFlag(QInputDevice::Capability::Pressure))
+        ret << InputDeviceModel::tr("press");
+    if (caps.testFlag(QInputDevice::Capability::Velocity))
+        ret << InputDeviceModel::tr("vel");
+    if (caps.testFlag(QInputDevice::Capability::NormalizedPosition))
+        ret << InputDeviceModel::tr("norm");
+    if (caps.testFlag(QInputDevice::Capability::MouseEmulation))
+        ret << InputDeviceModel::tr("m-emu");
+    if (caps.testFlag(QInputDevice::Capability::Scroll))
+        ret << InputDeviceModel::tr("scroll");
+    if (caps.testFlag(QInputDevice::Capability::PixelScroll))
+        ret << InputDeviceModel::tr("pxscroll");
+    if (caps.testFlag(QInputDevice::Capability::Hover))
+        ret << InputDeviceModel::tr("hover");
+    if (caps.testFlag(QInputDevice::Capability::Rotation))
+        ret << InputDeviceModel::tr("rot");
+    if (caps.testFlag(QInputDevice::Capability::XTilt))
+        ret << InputDeviceModel::tr("xtilt");
+    if (caps.testFlag(QInputDevice::Capability::YTilt))
+        ret << InputDeviceModel::tr("ytilt");
+    if (caps.testFlag(QInputDevice::Capability::TangentialPressure))
+        ret << InputDeviceModel::tr("tan");
+    if (caps.testFlag(QInputDevice::Capability::ZPosition))
+        ret << InputDeviceModel::tr("z");
+    return ret.join(u'|');
+}
+
+/*!
+    Returns true only if the given \a device is a master:
+    that is, if its parent is \e not another QInputDevice.
+*/
+static const auto masterDevicePred = [](const QInputDevice *device)
+{
+    return !qobject_cast<QInputDevice*>(device->parent());
+};
+
+/*!
+    Returns the master device at index \a i:
+    that is, the i'th of the devices that satisfy masterDevicePred().
+*/
+static const QInputDevice *masterDevice(int i)
+{
+    const auto devices = QInputDevice::devices();
+    auto it = std::find_if(devices.constBegin(), devices.constEnd(), masterDevicePred);
+    it += i;
+    return (it == devices.constEnd() ? nullptr : *it);
+}
+
+/*!
+    Returns the index of the master \a device: that is, the index within the
+    subset of QInputDevice::devices() that satisfy masterDevicePred().
+*/
+static const int masterDeviceIndex(const QInputDevice *device)
+{
+    Q_ASSERT(masterDevicePred(device)); // assume dev is not a slave
+    const auto devices = QInputDevice::devices();
+    auto it = std::find_if(devices.constBegin(), devices.constEnd(), masterDevicePred);
+    for (int i = 0; it != devices.constEnd(); ++i, ++it)
+        if (*it == device)
+            return i;
+    return -1;
+}
+
+InputDeviceModel::InputDeviceModel(QObject *parent)
+    : QAbstractItemModel{parent}
+{
+    connect(this, &InputDeviceModel::deviceAdded, this, &InputDeviceModel::onDeviceAdded, Qt::QueuedConnection);
+}
+
+// invariant: always call createIndex(row, column, QInputDevice*) or else nullptr for the last argument
+
+QModelIndex InputDeviceModel::index(int row, int column, const QModelIndex &parent) const
+{
+    const QInputDevice *par = static_cast<QInputDevice *>(parent.internalPointer());
+    const QInputDevice *ret = par ? qobject_cast<const QInputDevice *>(par->children().at(row)) : masterDevice(row);
+    qCDebug(lcIPDM) << row << column << "under parent" << par << ":" << ret;
+    return createIndex(row, column, ret);
+}
+
+QModelIndex InputDeviceModel::parent(const QModelIndex &index) const
+{
+    if (!index.internalPointer())
+        return {};
+    const QInputDevice *par = qobject_cast<const QInputDevice *>(
+                static_cast<QInputDevice *>(index.internalPointer())->parent());
+    if (par)
+        return createIndex(masterDeviceIndex(par), index.column(), par);
+    return {};
+}
+
+int InputDeviceModel::rowCount(const QModelIndex &parent) const
+{
+    int ret = 0;
+    const QInputDevice *par = qobject_cast<const QInputDevice *>(static_cast<QObject *>(parent.internalPointer()));
+    if (par) {
+        ret = par->children().count();
+    } else {
+        const auto devices = QInputDevice::devices();
+        ret = std::count_if(devices.constBegin(), devices.constEnd(), masterDevicePred);
+    }
+    qCDebug(lcIPDM) << ret << "under parent" << parent << par;
+    return ret;
+}
+
+int InputDeviceModel::columnCount(const QModelIndex &) const
+{
+    return NRoles;
+}
+
+QVariant InputDeviceModel::headerData(int section, Qt::Orientation orientation, int role) const
+{
+    if (orientation == Qt::Horizontal && role == Qt::DisplayRole) {
+        switch (section + Name) {
+        case Name:
+            return tr("Device Name");
+        case DeviceType:
+            return tr("Device Type");
+        case PointerType:
+            return tr("Pointer Type");
+        case Capabilities:
+            return tr("Capabilities");
+        case SystemId:
+            return tr("System ID");
+        case SeatName:
+            return tr("Seat Name");
+        case AvailableVirtualGeometry:
+            return tr("Available Virtual Geometry");
+        case MaximumPoints:
+            return tr("Maximum Points");
+        case ButtonCount:
+            return tr("Button Count");
+        case UniqueId:
+            return tr("Unique ID");
+        case NRoles:
+            break;
+        }
+    }
+    return {};
+}
+
+bool InputDeviceModel::eventFilter(QObject *obj, QEvent *event)
+{
+    if (event->type() == QEvent::ChildAdded)
+        // At this time, the child is not fully-constructed.
+        // Emit a signal which is connected to onDeviceAdded via queued connection, to delay row insertion.
+        emit deviceAdded(static_cast<QChildEvent *>(event)->child());
+    return false;
+}
+
+void InputDeviceModel::onDeviceAdded(const QObject *o)
+{
+    const QInputDevice *child = qobject_cast<const QInputDevice *>(o);
+    const QInputDevice *parent = qobject_cast<const QInputDevice *>(child->parent());
+    const int idx = parent->children().indexOf(child);
+    qCDebug(lcIPDM) << parent << "has a baby!" << child << "@" << idx;
+    beginInsertRows(createIndex(masterDeviceIndex(parent), 0, parent), idx, idx);
+    endInsertRows();
+}
+
+void InputDeviceModel::watchDevice(const QInputDevice *dev) const
+{
+    if (!m_known.contains(dev)) {
+        m_known << dev;
+        connect(dev, &QObject::destroyed, this, &InputDeviceModel::deviceDestroyed);
+        if (masterDevicePred(dev))
+            const_cast<QInputDevice *>(dev)->installEventFilter(const_cast<InputDeviceModel *>(this));
+    }
+}
+
+void InputDeviceModel::deviceDestroyed(QObject *o)
+{
+    beginResetModel();
+    const QInputDevice *dev = static_cast<QInputDevice *>(o);
+    bool needsReset = true;
+    if (!masterDevicePred(dev)) {
+        const QInputDevice *parent = static_cast<const QInputDevice *>(dev->parent());
+        const int idx = parent->children().indexOf(dev);
+        Q_ASSERT(idx >= 0);
+        beginRemoveRows(createIndex(masterDeviceIndex(parent), 0, parent), idx, idx);
+        endRemoveRows();
+        needsReset = false;
+    }
+    m_known.removeOne(dev);
+    if (needsReset)
+        endResetModel();
+}
+
+QVariant InputDeviceModel::data(const QModelIndex &index, int role) const
+{
+    if (role == Qt::DisplayRole)
+        role = index.column() + Role::Name;
+    if (role >= NRoles)
+        return {};
+    const QInputDevice *dev = static_cast<QInputDevice *>(index.internalPointer());
+    watchDevice(dev);
+    if (role < Name)
+        qCDebug(lcIPDM) << index << Qt::ItemDataRole(role) << dev;
+    else
+        qCDebug(lcIPDM) << index << Role(role) << dev;
+    const QPointingDevice *pdev = qobject_cast<const QPointingDevice *>(dev);
+    switch (role) {
+    case Name:
+        return dev->name();
+    case DeviceType:
+        return enumToString(dev, "DeviceType", int(dev->type()));
+    case PointerType:
+        return pdev ? enumToString(pdev, "PointerType", int(pdev->pointerType()))
+                    : QString();
+    case Capabilities:
+        return capabilitiesString(dev);
+    case SystemId:
+        return dev->systemId();
+    case SeatName:
+        return dev->seatName();
+    case AvailableVirtualGeometry: {
+        const auto rect = dev->availableVirtualGeometry();
+        return tr("%1 x %2 %3 %4").arg(rect.width()).arg(rect.height()).arg(rect.x()).arg(rect.y());
+    }
+    case MaximumPoints:
+        return pdev ? pdev->maximumPoints() : 0;
+    case ButtonCount:
+        return pdev ? pdev->buttonCount() : 0;
+    case UniqueId:
+        return pdev ? pdev->uniqueId().numericId() : 0;
+    }
+    return {};
+}
+
+#include "moc_inputdevicemodel.cpp"
diff --git a/tests/manual/inputdevices/inputdevicemodel.h b/tests/manual/inputdevices/inputdevicemodel.h
new file mode 100644
index 00000000..c68e64e9
--- /dev/null
+++ b/tests/manual/inputdevices/inputdevicemodel.h
@@ -0,0 +1,55 @@
+// Copyright (C) 2023 The Qt Company Ltd.
+// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
+
+#ifndef INPUTDEVICEMODEL_H
+#define INPUTDEVICEMODEL_H
+
+#include <QAbstractItemModel>
+
+class QInputDevice;
+
+class InputDeviceModel : public QAbstractItemModel
+{
+    Q_OBJECT
+
+public:
+    enum Role {
+        Name = Qt::UserRole + 1,
+        DeviceType,
+        PointerType,
+        Capabilities,
+        SystemId,
+        SeatName,
+        AvailableVirtualGeometry,
+        MaximumPoints,
+        ButtonCount,
+        UniqueId,
+        NRoles
+    };
+    Q_ENUM(Role);
+
+    explicit InputDeviceModel(QObject *parent = nullptr);
+    QModelIndex index(int row, int column, const QModelIndex &parent = QModelIndex()) const override;
+    QModelIndex parent(const QModelIndex &index) const override;
+    int rowCount(const QModelIndex &parent = QModelIndex()) const override;
+    int columnCount(const QModelIndex &parent = QModelIndex()) const override;
+    QVariant data(const QModelIndex &index, int role = Qt::DisplayRole) const override;
+    QVariant headerData(int section, Qt::Orientation orientation, int role = Qt::DisplayRole) const override;
+
+protected:
+    bool eventFilter(QObject *obj, QEvent *event) override;
+
+signals:
+    void deviceAdded(const QObject *o);
+
+private slots:
+    void onDeviceAdded(const QObject *o);
+
+private:
+    void watchDevice(const QInputDevice *dev) const;
+    void deviceDestroyed(QObject *o);
+
+    mutable QList<const QInputDevice *> m_known;
+};
+
+#endif // INPUTDEVICEMODEL_H
diff --git a/tests/manual/inputdevices/main.cpp b/tests/manual/inputdevices/main.cpp
new file mode 100644
index 00000000..4b4386ae
--- /dev/null
+++ b/tests/manual/inputdevices/main.cpp
@@ -0,0 +1,24 @@
+// Copyright (C) 2023 The Qt Company Ltd.
+// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
+
+#include <QApplication>
+#include <QLoggingCategory>
+#include <QTreeView>
+
+#include "inputdevicemodel.h"
+
+int main(int argc, char **argv)
+{
+    QLoggingCategory::setFilterRules(QStringLiteral("qt.qpa.input.devices=true"));
+
+    QApplication app(argc, argv);
+
+    QTreeView view;
+    view.setModel(new InputDeviceModel(&view));
+    view.resize(1280, 600);
+    view.show();
+    view.resizeColumnToContents(0);
+
+    app.exec();
+}
+
diff --git a/tests/manual/manual.pro b/tests/manual/manual.pro
index 7bb92bb4..3519fc11 100644
--- a/tests/manual/manual.pro
+++ b/tests/manual/manual.pro
@@ -5,6 +5,7 @@ SUBDIRS = \
 filetest \
 embeddedintoforeignwindow \
 foreignwindows \
+fontfeatures \
 gestures \
 highdpi \
 inputmethodhints \
diff --git a/tests/manual/qdnslookup/CMakeLists.txt b/tests/manual/qdnslookup/CMakeLists.txt
new file mode 100644
index 00000000..646e972b
--- /dev/null
+++ b/tests/manual/qdnslookup/CMakeLists.txt
@@ -0,0 +1,9 @@
+# Copyright (C) 2023 Intel Corporation.
+# SPDX-License-Identifier: BSD-3-Clause
+
+qt_internal_add_manual_test(qdnslookup
+    SOURCES
+        main.cpp
+    LIBRARIES
+        Qt::Network
+)
diff --git a/tests/manual/qdnslookup/main.cpp b/tests/manual/qdnslookup/main.cpp
new file mode 100644
index 00000000..19aeeeb4
--- /dev/null
+++ b/tests/manual/qdnslookup/main.cpp
@@ -0,0 +1,184 @@
+// Copyright (C) 2023 Intel Corporation.
+// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only WITH Qt-GPL-exception-1.0
+
+#include <QtCore/QCoreApplication>
+#include <QtCore/QDebug>
+#include <QtCore/QElapsedTimer>
+#include <QtCore/QMetaEnum>
+#include <QtCore/QTimer>
+#include <QtCore/QUrl>
+#include <QtNetwork/QHostAddress>
+#include <QtNetwork/QHostInfo>
+#include <QtNetwork/QDnsLookup>
+
+#include <stdlib.h>
+#include <stdio.h>
+
+#include <chrono>
+
+using namespace Qt::StringLiterals;
+using namespace std::chrono;
+using namespace std::chrono_literals;
+
+static QDnsLookup::Type typeFromString(QString str)
+{
+    // we can use the meta object
+    QMetaEnum me = QMetaEnum::fromType<QDnsLookup::Type>();
+
+    bool ok;
+    int value = me.keyToValue(str.toUpper().toLatin1(), &ok);
+    if (!ok)
+        return QDnsLookup::Type(0);
+    return QDnsLookup::Type(value);
+}
+
+static int showHelp(const char *argv0, int exitcode)
+{
+    // like dig
+    printf("%s [@global-server] [domain] [query-type]\n", argv0);
+    return exitcode;
+}
+
+static auto parseServerAddress(QString server)
+{
+    struct R {
+        QHostAddress address;
+        int port = -1;
+    } r;
+
+    // let's use QUrl to help us
+    QUrl url;
+    url.setAuthority(server);
+    if (!url.isValid() || !url.userInfo().isNull())
+        return r;           // failed
+
+    r.port = url.port();
+    r.address.setAddress(url.host());
+    return r;
+}
+
+static void printAnswers(const QDnsLookup &lookup)
+{
+    printf("\n;; ANSWER:\n");
+    static auto printRecordCommon = [](const auto &rr, const char *rrtype) {
+        printf("%-23s %6d  IN %s\t", qPrintable(rr.name()), rr.timeToLive(), rrtype);
+    };
+    auto printNameRecords = [](const char *rrtype, const QList<QDnsDomainNameRecord> list) {
+        for (const QDnsDomainNameRecord &rr : list) {
+            printRecordCommon(rr, rrtype);
+            printf("%s\n", qPrintable(rr.value()));
+        }
+    };
+
+    for (const QDnsMailExchangeRecord &rr : lookup.mailExchangeRecords()) {
+        printRecordCommon(rr, "MX");
+        printf("%d %s\n", rr.preference(), qPrintable(rr.exchange()));
+    }
+    for (const QDnsServiceRecord &rr : lookup.serviceRecords()) {
+        printRecordCommon(rr, "SRV");
+        printf("%d %d %d %s\n", rr.priority(), rr.weight(), rr.port(),
+               qPrintable(rr.target()));
+    }
+    printNameRecords("NS", lookup.nameServerRecords());
+    printNameRecords("PTR", lookup.pointerRecords());
+    printNameRecords("CNAME", lookup.canonicalNameRecords());
+
+    for (const QDnsHostAddressRecord &rr : lookup.hostAddressRecords()) {
+        QHostAddress addr = rr.value();
+        printRecordCommon(rr, addr.protocol() == QHostAddress::IPv6Protocol ? "AAAA" : "A");
+        printf("%s\n", qPrintable(addr.toString()));
+    }
+
+    for (const QDnsTextRecord &rr : lookup.textRecords()) {
+        printRecordCommon(rr, "TXT");
+        for (const QByteArray &data : rr.values())
+            printf("%s ", qPrintable(QDebug::toString(data)));
+        puts("");
+    }
+}
+
+static void printResults(const QDnsLookup &lookup, QElapsedTimer::Duration duration)
+{
+    if (QDnsLookup::Error error = lookup.error())
+        printf(";; status: %s (%s)\n", QMetaEnum::fromType<QDnsLookup::Error>().valueToKey(error),
+               qPrintable(lookup.errorString()));
+    else
+        printf(";; status: NoError\n");
+
+    QMetaEnum me = QMetaEnum::fromType<QDnsLookup::Type>();
+    printf(";; QUESTION:\n");
+    printf(";%-30s IN %s\n", qPrintable(lookup.name()),
+           me.valueToKey(lookup.type()));
+
+    if (lookup.error() == QDnsLookup::NoError)
+        printAnswers(lookup);
+
+    printf("\n;; Query time: %lld ms\n", qint64(duration_cast<milliseconds>(duration).count()));
+    if (QHostAddress server = lookup.nameserver(); !server.isNull())
+        printf(";; SERVER: %s#%d\n", qPrintable(server.toString()), lookup.nameserverPort());
+}
+
+int main(int argc, char *argv[])
+{
+    QCoreApplication a(argc, argv);
+
+    QDnsLookup::Type type = {};
+    QString domain, server;
+    const QStringList args = QCoreApplication::arguments().sliced(1);
+    for (const QString &arg : args) {
+        if (arg.startsWith(u'@')) {
+            server = arg.mid(1);
+            continue;
+        }
+        if (arg == u"-h")
+            return showHelp(argv[0], EXIT_SUCCESS);
+        if (domain.isNull()) {
+            domain = arg;
+            continue;
+        }
+        if (type != QDnsLookup::Type{})
+            return showHelp(argv[0], EXIT_FAILURE);
+
+        type = typeFromString(arg);
+        if (type == QDnsLookup::Type{}) {
+            fprintf(stderr, "%s: unknown DNS record type '%s'. Valid types are:\n",
+                    argv[0], qPrintable(arg));
+            QMetaEnum me = QMetaEnum::fromType<QDnsLookup::Type>();
+            for (int i = 0; i < me.keyCount(); ++i)
+                fprintf(stderr, "    %s\n", me.key(i));
+            return EXIT_FAILURE;
+        }
+    }
+
+    if (domain.isEmpty())
+        domain = u"qt-project.org"_s;
+    if (type == QDnsLookup::Type{})
+        type = QDnsLookup::A;
+
+    QDnsLookup lookup(type, domain);
+    if (!server.isEmpty()) {
+        auto addr = parseServerAddress(server);
+        if (addr.address.isNull()) {
+            fprintf(stderr, "%s: could not parse name server address '%s'\n",
+                    argv[0], qPrintable(server));
+            return EXIT_FAILURE;
+        }
+        lookup.setNameserver(addr.address);
+        if (addr.port > 0)
+            lookup.setNameserverPort(addr.port);
+    }
+
+    // execute the lookup
+    QObject::connect(&lookup, &QDnsLookup::finished, qApp, &QCoreApplication::quit);
+    QTimer::singleShot(15s, []() { qApp->exit(EXIT_FAILURE); });
+
+    QElapsedTimer timer;
+    timer.start();
+    lookup.lookup();
+    if (a.exec() == EXIT_FAILURE)
+        return EXIT_FAILURE;
+    printf("; <<>> QDnsLookup " QT_VERSION_STR " <<>> %s %s\n",
+           qPrintable(QCoreApplication::applicationName()), qPrintable(args.join(u' ')));
+    printResults(lookup, timer.durationElapsed());
+    return 0;
+}
diff --git a/tests/manual/qtabletevent/CMakeLists.txt b/tests/manual/qtabletevent/CMakeLists.txt
index d813c14d..df4a66c8 100644
--- a/tests/manual/qtabletevent/CMakeLists.txt
+++ b/tests/manual/qtabletevent/CMakeLists.txt
@@ -1,6 +1,6 @@
 # Copyright (C) 2022 The Qt Company Ltd.
 # SPDX-License-Identifier: BSD-3-Clause
 
-#add_subdirectory(device_information) # special case no member named 'staticQtMetaObject'
+#add_subdirectory(device_information) # TODO: no member named 'staticQtMetaObject'
 add_subdirectory(event_compression)
 add_subdirectory(regular_widgets)
diff --git a/tests/manual/rhi/CMakeLists.txt b/tests/manual/rhi/CMakeLists.txt
index ff1027ae..ab4093e9 100644
--- a/tests/manual/rhi/CMakeLists.txt
+++ b/tests/manual/rhi/CMakeLists.txt
@@ -30,6 +30,8 @@ add_subdirectory(geometryshader)
 add_subdirectory(stenciloutline)
 add_subdirectory(stereo)
 add_subdirectory(tex1d)
+add_subdirectory(displacement)
+add_subdirectory(imguirenderer)
 if(QT_FEATURE_widgets)
     add_subdirectory(rhiwidget)
 endif()
diff --git a/tests/manual/rhi/displacement/CMakeLists.txt b/tests/manual/rhi/displacement/CMakeLists.txt
new file mode 100644
index 00000000..8157626f
--- /dev/null
+++ b/tests/manual/rhi/displacement/CMakeLists.txt
@@ -0,0 +1,26 @@
+# Copyright (C) 2022 The Qt Company Ltd.
+# SPDX-License-Identifier: BSD-3-Clause
+
+qt_internal_add_manual_test(displacement
+    GUI
+    SOURCES
+        displacement.cpp
+    LIBRARIES
+        Qt::Gui
+        Qt::GuiPrivate
+)
+
+qt_internal_add_resource(displacement "displacement"
+    PREFIX
+        "/"
+    FILES
+        "material.vert.qsb"
+        "material.tesc.qsb"
+        "material.tese.qsb"
+        "material.frag.qsb"
+        "heightmap.png"
+)
+
+set(imgui_base ../shared/imgui)
+set(imgui_target displacement)
+include(${imgui_base}/imgui.cmakeinc)
diff --git a/tests/manual/rhi/displacement/buildshaders b/tests/manual/rhi/displacement/buildshaders
new file mode 100644
index 00000000..87d14a47
--- /dev/null
+++ b/tests/manual/rhi/displacement/buildshaders
@@ -0,0 +1,7 @@
+#!/bin/sh
+qsb --glsl 320es,410 --hlsl 50 --msl 12 --msltess material.vert -o material.vert.qsb
+qsb --glsl 320es,410 --hlsl 50 --msl 12 material.frag -o material.frag.qsb
+qsb --glsl 320es,410 --msl 12 --tess-mode triangles material.tesc -o material.tesc.qsb
+qsb --glsl 320es,410 --msl 12  --tess-vertex-count 3 material.tese -o material.tese.qsb
+qsb -r hlsl,50,material_hull.hlsl material.tesc.qsb
+qsb -r hlsl,50,material_domain.hlsl material.tese.qsb
diff --git a/tests/manual/rhi/displacement/buildshaders.bat b/tests/manual/rhi/displacement/buildshaders.bat
new file mode 100644
index 00000000..55227749
--- /dev/null
+++ b/tests/manual/rhi/displacement/buildshaders.bat
@@ -0,0 +1,8 @@
+qsb --glsl 320es,410 --hlsl 50 --msl 12 --msltess material.vert -o material.vert.qsb
+qsb --glsl 320es,410 --hlsl 50 --msl 12 material.frag -o material.frag.qsb
+
+qsb --glsl 320es,410 --msl 12 --tess-mode triangles material.tesc -o material.tesc.qsb
+qsb --glsl 320es,410 --msl 12  --tess-vertex-count 3 material.tese -o material.tese.qsb
+
+qsb -r hlsl,50,material_hull.hlsl material.tesc.qsb
+qsb -r hlsl,50,material_domain.hlsl material.tese.qsb
diff --git a/tests/manual/rhi/displacement/displacement.cpp b/tests/manual/rhi/displacement/displacement.cpp
new file mode 100644
index 00000000..7a25133f
--- /dev/null
+++ b/tests/manual/rhi/displacement/displacement.cpp
@@ -0,0 +1,199 @@
+// Copyright (C) 2023 The Qt Company Ltd.
+// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
+
+#define EXAMPLEFW_IMGUI
+#include "../shared/examplefw.h"
+#include "../shared/cube.h"
+
+// Another tessellation test. Compatible with Direct 3D via hand-written hull
+// and domain shaders, but this already pushes the limits of what is sensible
+// when it comes to injecting hand-written HLSL code to get tessellation
+// functional (cbuffer layout, resource registers all need to be figured out
+// manually and works only as long as the GLSL source is not changing, etc.).
+// Note that the domain shader must use SampleLevel (textureLod), it won't
+// compile for ds_5_0 otherwise.
+
+static const quint32 UBUF_SIZE = 80;
+
+struct {
+    QList<QRhiResource *> releasePool;
+
+    QRhiBuffer *vbuf;
+    QRhiBuffer *ubuf;
+    QRhiTexture *tex;
+    QRhiSampler *sampler;
+    QRhiShaderResourceBindings *srb;
+    QRhiGraphicsPipeline *psWire;
+    QRhiGraphicsPipeline *psSolid;
+    bool rotate = true;
+    float rotation = 0.0f;
+    float viewZ = 0.0f;
+    float displacementAmount = 0.0f;
+    int tessInner = 4;
+    int tessOuter = 4;
+    bool useTex = false;
+    bool wireframe = true;
+
+    QRhiResourceUpdateBatch *initialUpdates = nullptr;
+} d;
+
+void Window::customInit()
+{
+    if (!m_r->isFeatureSupported(QRhi::Tessellation))
+        qFatal("Tessellation is not supported");
+
+    d.initialUpdates = m_r->nextResourceUpdateBatch();
+
+    d.vbuf = m_r->newBuffer(QRhiBuffer::Immutable, QRhiBuffer::VertexBuffer, sizeof(cube));
+    d.vbuf->create();
+    d.releasePool << d.vbuf;
+
+    d.initialUpdates->uploadStaticBuffer(d.vbuf, cube);
+
+    d.ubuf = m_r->newBuffer(QRhiBuffer::Dynamic, QRhiBuffer::UniformBuffer, m_r->ubufAligned(UBUF_SIZE));
+    d.ubuf->create();
+    d.releasePool << d.ubuf;
+
+    QImage image;
+    image.load(":/heightmap.png");
+    if (image.isNull())
+        qFatal("Failed to load displacement map");
+
+    d.tex = m_r->newTexture(QRhiTexture::RGBA8, image.size());
+    d.tex->create();
+    d.releasePool << d.tex;
+
+    d.initialUpdates->uploadTexture(d.tex, image);
+
+    d.sampler = m_r->newSampler(QRhiSampler::Linear, QRhiSampler::Linear, QRhiSampler::None,
+                                QRhiSampler::Repeat, QRhiSampler::Repeat);
+    d.releasePool << d.sampler;
+    d.sampler->create();
+
+    d.srb = m_r->newShaderResourceBindings();
+    d.releasePool << d.srb;
+    d.srb->setBindings({
+            QRhiShaderResourceBinding::uniformBuffer(0,
+                           QRhiShaderResourceBinding::TessellationControlStage
+                           | QRhiShaderResourceBinding::TessellationEvaluationStage,
+                           d.ubuf),
+            QRhiShaderResourceBinding::sampledTexture(1, QRhiShaderResourceBinding::TessellationEvaluationStage, d.tex, d.sampler)
+        });
+    d.srb->create();
+
+    QRhiVertexInputLayout inputLayout;
+    inputLayout.setBindings({
+        { 3 * sizeof(float) },
+        { 2 * sizeof(float) },
+        { 3 * sizeof(float) }
+    });
+    inputLayout.setAttributes({
+        { 0, 0, QRhiVertexInputAttribute::Float3, 0 },
+        { 1, 1, QRhiVertexInputAttribute::Float2, 0 },
+        { 2, 2, QRhiVertexInputAttribute::Float3, 0 }
+    });
+
+    const QRhiShaderStage stages[] = {
+        { QRhiShaderStage::Vertex, getShader(QLatin1String(":/material.vert.qsb")) },
+        { QRhiShaderStage::TessellationControl, getShader(QLatin1String(":/material.tesc.qsb")) },
+        { QRhiShaderStage::TessellationEvaluation, getShader(QLatin1String(":/material.tese.qsb")) },
+        { QRhiShaderStage::Fragment, getShader(QLatin1String(":/material.frag.qsb")) }
+    };
+
+    d.psWire = m_r->newGraphicsPipeline();
+    d.releasePool << d.psWire;
+    d.psWire->setTopology(QRhiGraphicsPipeline::Patches);
+    d.psWire->setPatchControlPointCount(3);
+    d.psWire->setShaderStages(stages, stages + 4);
+    d.psWire->setDepthTest(true);
+    d.psWire->setDepthWrite(true);
+    d.psWire->setCullMode(QRhiGraphicsPipeline::Back);
+    d.psWire->setPolygonMode(QRhiGraphicsPipeline::Line);
+    d.psWire->setVertexInputLayout(inputLayout);
+    d.psWire->setShaderResourceBindings(d.srb);
+    d.psWire->setRenderPassDescriptor(m_rp);
+    d.psWire->create();
+
+    d.psSolid = m_r->newGraphicsPipeline();
+    d.releasePool << d.psSolid;
+    d.psSolid->setTopology(QRhiGraphicsPipeline::Patches);
+    d.psSolid->setPatchControlPointCount(3);
+    d.psSolid->setShaderStages(stages, stages + 4);
+    d.psSolid->setDepthTest(true);
+    d.psSolid->setDepthWrite(true);
+    d.psSolid->setCullMode(QRhiGraphicsPipeline::Back);
+    d.psSolid->setVertexInputLayout(inputLayout);
+    d.psSolid->setShaderResourceBindings(d.srb);
+    d.psSolid->setRenderPassDescriptor(m_rp);
+    d.psSolid->create();
+}
+
+void Window::customRelease()
+{
+    qDeleteAll(d.releasePool);
+    d.releasePool.clear();
+}
+
+void Window::customRender()
+{
+    const QSize outputSizeInPixels = m_sc->currentPixelSize();
+    QRhiCommandBuffer *cb = m_sc->currentFrameCommandBuffer();
+    QRhiResourceUpdateBatch *u = nullptr;
+    if (d.initialUpdates) {
+        u = d.initialUpdates;
+        d.initialUpdates = nullptr;
+    }
+
+    char *p = d.ubuf->beginFullDynamicBufferUpdateForCurrentFrame();
+    QMatrix4x4 mvp = m_proj;
+    mvp.translate(0, 0, d.viewZ);
+    mvp.rotate(d.rotation, 1, 1, 0);
+    mvp.scale(0.5f);
+
+    memcpy(p, mvp.constData(), 64);
+    memcpy(p + 64, &d.displacementAmount, sizeof(float));
+    float tessInnerFloat = d.tessInner;
+    memcpy(p + 68, &tessInnerFloat, sizeof(float));
+    float tessOuterFloat = d.tessOuter;
+    memcpy(p + 72, &tessOuterFloat, sizeof(float));
+    qint32 useTex = d.useTex ? 1 : 0;
+    memcpy(p + 76, &useTex, sizeof(qint32));
+
+    d.ubuf->endFullDynamicBufferUpdateForCurrentFrame();
+
+    const QRhiCommandBuffer::VertexInput vbufBinding[] = {
+        { d.vbuf, 0 },
+        { d.vbuf, quint32(36 * 3 * sizeof(float)) },
+        { d.vbuf, quint32(36 * (3 + 2) * sizeof(float)) }
+    };
+
+    cb->beginPass(m_sc->currentFrameRenderTarget(), m_clearColor, { 1.0f, 0 }, u, QRhiCommandBuffer::DoNotTrackResourcesForCompute);
+
+    cb->setGraphicsPipeline(d.wireframe ? d.psWire : d.psSolid);
+    cb->setViewport({ 0, 0, float(outputSizeInPixels.width()), float(outputSizeInPixels.height()) });
+    cb->setShaderResources(d.srb);
+    cb->setVertexInput(0, 3, vbufBinding);
+    cb->draw(36);
+
+    m_imguiRenderer->render();
+
+    cb->endPass();
+
+    if (d.rotate)
+        d.rotation += 1;
+}
+
+void Window::customGui()
+{
+    ImGui::SetNextWindowPos(ImVec2(10, 10), ImGuiCond_FirstUseEver);
+    ImGui::SetNextWindowSize(ImVec2(500, 250), ImGuiCond_FirstUseEver);
+    ImGui::Begin("Test");
+    ImGui::SliderInt("Inner", &d.tessInner, 0, 20);
+    ImGui::SliderInt("Outer", &d.tessOuter, 0, 20);
+    ImGui::SliderFloat("Displacement", &d.displacementAmount, 0.0f, 4.0f);
+    ImGui::Checkbox("Use displacement texture", &d.useTex);
+    ImGui::SliderFloat("Z", &d.viewZ, -16.0f, 4.0f);
+    ImGui::Checkbox("Rotate", &d.rotate);
+    ImGui::Checkbox("Wireframe", &d.wireframe);
+    ImGui::End();
+}
diff --git a/tests/manual/rhi/displacement/heightmap.png b/tests/manual/rhi/displacement/heightmap.png
new file mode 100644
index 00000000..701bf7f7
Binary files /dev/null and b/tests/manual/rhi/displacement/heightmap.png differ
diff --git a/tests/manual/rhi/displacement/material.frag b/tests/manual/rhi/displacement/material.frag
new file mode 100644
index 00000000..67c19e3c
--- /dev/null
+++ b/tests/manual/rhi/displacement/material.frag
@@ -0,0 +1,10 @@
+#version 440
+
+layout(location = 0) out vec4 fragColor;
+
+layout(location = 1) in vec3 in_normal;
+
+void main()
+{
+    fragColor = vec4((normalize(in_normal) + 1.0) / 2.0, 1.0);
+}
diff --git a/tests/manual/rhi/displacement/material.frag.qsb b/tests/manual/rhi/displacement/material.frag.qsb
new file mode 100644
index 00000000..b3d55e61
Binary files /dev/null and b/tests/manual/rhi/displacement/material.frag.qsb differ
diff --git a/tests/manual/rhi/displacement/material.tesc b/tests/manual/rhi/displacement/material.tesc
new file mode 100644
index 00000000..cb9e6770
--- /dev/null
+++ b/tests/manual/rhi/displacement/material.tesc
@@ -0,0 +1,32 @@
+#version 440
+
+layout(vertices = 3) out;
+
+layout(location = 0) in vec2 in_uv[];
+layout(location = 1) in vec3 in_normal[];
+
+layout(location = 0) out vec2 out_uv[];
+layout(location = 1) out vec3 out_normal[];
+
+layout(std140, binding = 0) uniform buf {
+    mat4 mvp;
+    float displacementAmount;
+    float tessInner;
+    float tessOuter;
+    int useTex;
+};
+
+void main()
+{
+    if (gl_InvocationID == 0) {
+        gl_TessLevelOuter[0] = tessOuter;
+        gl_TessLevelOuter[1] = tessOuter;
+        gl_TessLevelOuter[2] = tessOuter;
+
+        gl_TessLevelInner[0] = tessInner;
+    }
+
+    gl_out[gl_InvocationID].gl_Position = gl_in[gl_InvocationID].gl_Position;
+    out_uv[gl_InvocationID] = in_uv[gl_InvocationID];
+    out_normal[gl_InvocationID] = in_normal[gl_InvocationID];
+}
diff --git a/tests/manual/rhi/displacement/material.tesc.qsb b/tests/manual/rhi/displacement/material.tesc.qsb
new file mode 100644
index 00000000..1199555e
Binary files /dev/null and b/tests/manual/rhi/displacement/material.tesc.qsb differ
diff --git a/tests/manual/rhi/displacement/material.tese b/tests/manual/rhi/displacement/material.tese
new file mode 100644
index 00000000..ed05eacc
--- /dev/null
+++ b/tests/manual/rhi/displacement/material.tese
@@ -0,0 +1,37 @@
+#version 440
+
+layout(triangles, fractional_odd_spacing, ccw) in;
+
+layout(location = 0) in vec2 in_uv[];
+layout(location = 1) in vec3 in_normal[];
+
+//layout(location = 0) out vec2 out_uv;
+layout(location = 1) out vec3 out_normal;
+
+layout(std140, binding = 0) uniform buf {
+    mat4 mvp;
+    float displacementAmount;
+    float tessInner;
+    float tessOuter;
+    int useTex;
+};
+
+layout(binding = 1) uniform sampler2D displacementMap;
+
+void main()
+{
+    vec4 pos = (gl_TessCoord.x * gl_in[0].gl_Position) + (gl_TessCoord.y * gl_in[1].gl_Position) + (gl_TessCoord.z * gl_in[2].gl_Position);
+    vec2 uv = gl_TessCoord.x * in_uv[0].xy + gl_TessCoord.y * in_uv[1].xy;
+    vec3 normal = normalize(gl_TessCoord.x * in_normal[0] + gl_TessCoord.y * in_normal[1] + gl_TessCoord.z * in_normal[2]);
+
+    vec4 c = texture(displacementMap, uv);
+    const vec3 yCoeff_709 = vec3(0.2126, 0.7152, 0.0722);
+    float df = dot(c.rgb, yCoeff_709);
+    if (useTex == 0)
+        df = 1.0;
+    vec3 displacedPos = pos.xyz + normal * df * displacementAmount;
+    gl_Position = mvp * vec4(displacedPos, 1.0);
+
+//    out_uv = uv;
+    out_normal = normal;
+}
diff --git a/tests/manual/rhi/displacement/material.tese.qsb b/tests/manual/rhi/displacement/material.tese.qsb
new file mode 100644
index 00000000..26f3e827
Binary files /dev/null and b/tests/manual/rhi/displacement/material.tese.qsb differ
diff --git a/tests/manual/rhi/displacement/material.vert b/tests/manual/rhi/displacement/material.vert
new file mode 100644
index 00000000..b84d1050
--- /dev/null
+++ b/tests/manual/rhi/displacement/material.vert
@@ -0,0 +1,15 @@
+#version 440
+
+layout(location = 0) in vec3 position;
+layout(location = 1) in vec2 uv;
+layout(location = 2) in vec3 normal;
+
+layout(location = 0) out vec2 out_uv;
+layout(location = 1) out vec3 out_normal;
+
+void main()
+{
+    gl_Position = vec4(position, 1.0);
+    out_uv = uv;
+    out_normal = normal;
+}
diff --git a/tests/manual/rhi/displacement/material.vert.qsb b/tests/manual/rhi/displacement/material.vert.qsb
new file mode 100644
index 00000000..07494b62
Binary files /dev/null and b/tests/manual/rhi/displacement/material.vert.qsb differ
diff --git a/tests/manual/rhi/displacement/material_domain.hlsl b/tests/manual/rhi/displacement/material_domain.hlsl
new file mode 100644
index 00000000..268ce0c6
--- /dev/null
+++ b/tests/manual/rhi/displacement/material_domain.hlsl
@@ -0,0 +1,54 @@
+struct Input
+{
+    float edges[3] : SV_TessFactor;
+    float inside : SV_InsideTessFactor;
+};
+
+struct PatchInput
+{
+    float3 position : POSITION;
+    float2 uv : TEXCOORD0;
+    float3 normal : TEXCOORD1;
+};
+
+struct PixelInput
+{
+    //float2 uv : TEXCOORD0;
+    float3 normal : TEXCOORD1;
+    float4 position : SV_POSITION;
+};
+
+cbuffer buf : register(b0)
+{
+    row_major float4x4 mvp : packoffset(c0);
+    float displacementAmount : packoffset(c4);
+    float tessInner : packoffset(c4.y);
+    float tessOuter : packoffset(c4.z);
+    int useTex : packoffset(c4.w);
+};
+
+Texture2D<float4> tex : register(t1);
+SamplerState texsampler : register(s1);
+
+[domain("tri")]
+PixelInput main(Input input, float3 uvwCoord : SV_DomainLocation, const OutputPatch<PatchInput, 3> patch)
+{
+    PixelInput output;
+
+    float3 pos = uvwCoord.x * patch[0].position + uvwCoord.y * patch[1].position + uvwCoord.z * patch[2].position;
+    float2 uv =  uvwCoord.x * patch[0].uv + uvwCoord.y * patch[1].uv;
+    float3 normal = normalize(uvwCoord.x * patch[0].normal + uvwCoord.y * patch[1].normal + uvwCoord.z * patch[2].normal);
+
+    float4 c = tex.SampleLevel(texsampler, uv, 0.0);
+    const float3 yCoeff_709 = float3(0.2126, 0.7152, 0.0722);
+    float df = dot(c.rgb, yCoeff_709);
+    if (useTex == 0)
+        df = 1.0;
+    float3 displacedPos = pos + normal * df * displacementAmount;
+
+    output.position = mul(float4(displacedPos, 1.0), mvp);
+    //output.uv = uv;
+    output.normal = normal;
+
+    return output;
+}
diff --git a/tests/manual/rhi/displacement/material_hull.hlsl b/tests/manual/rhi/displacement/material_hull.hlsl
new file mode 100644
index 00000000..03b476f6
--- /dev/null
+++ b/tests/manual/rhi/displacement/material_hull.hlsl
@@ -0,0 +1,52 @@
+struct Input
+{
+    float2 uv : TEXCOORD0;
+    float3 normal : TEXCOORD1;
+    float4 position : SV_Position;
+};
+
+struct Output
+{
+    float3 position : POSITION;
+    float2 uv : TEXCOORD0;
+    float3 normal : TEXCOORD1;
+};
+
+struct ConstantData
+{
+    float edges[3] : SV_TessFactor;
+    float inside : SV_InsideTessFactor;
+};
+
+cbuffer buf : register(b0)
+{
+    row_major float4x4 mvp : packoffset(c0);
+    float displacementAmount : packoffset(c4);
+    float tessInner : packoffset(c4.y);
+    float tessOuter : packoffset(c4.z);
+    int useTex : packoffset(c4.w);
+};
+
+ConstantData patchConstFunc(InputPatch<Input, 3> ip, uint PatchID : SV_PrimitiveID )
+{
+    ConstantData d;
+    d.edges[0] = tessOuter;
+    d.edges[1] = tessOuter;
+    d.edges[2] = tessOuter;
+    d.inside = tessInner;
+    return d;
+}
+
+[domain("tri")]
+[partitioning("integer")]
+[outputtopology("triangle_cw")]
+[outputcontrolpoints(3)]
+[patchconstantfunc("patchConstFunc")]
+Output main(InputPatch<Input, 3> patch, uint pointId : SV_OutputControlPointID, uint patchId : SV_PrimitiveID)
+{
+    Output output;
+    output.position = patch[pointId].position;
+    output.uv = patch[pointId].uv;
+    output.normal = patch[pointId].normal;
+    return output;
+}
diff --git a/tests/manual/rhi/hellominimalcrossgfxtriangle/hellowindow.cpp b/tests/manual/rhi/hellominimalcrossgfxtriangle/hellowindow.cpp
index 9cbcebb3..895d7f00 100644
--- a/tests/manual/rhi/hellominimalcrossgfxtriangle/hellowindow.cpp
+++ b/tests/manual/rhi/hellominimalcrossgfxtriangle/hellowindow.cpp
@@ -3,7 +3,7 @@
 
 #include "hellowindow.h"
 #include <QFile>
-#include <QtGui/private/qshader_p.h>
+#include <rhi/qshader.h>
 
 static float vertexData[] = {
     // Y up (note clipSpaceCorrMatrix in m_proj), CCW
diff --git a/tests/manual/rhi/hellominimalcrossgfxtriangle/main.cpp b/tests/manual/rhi/hellominimalcrossgfxtriangle/main.cpp
index 9f6b6063..949ac585 100644
--- a/tests/manual/rhi/hellominimalcrossgfxtriangle/main.cpp
+++ b/tests/manual/rhi/hellominimalcrossgfxtriangle/main.cpp
@@ -20,6 +20,8 @@ QString graphicsApiName(QRhi::Implementation graphicsApi)
         return QLatin1String("Vulkan");
     case QRhi::D3D11:
         return QLatin1String("Direct3D 11");
+    case QRhi::D3D12:
+        return QLatin1String("Direct3D 12");
     case QRhi::Metal:
         return QLatin1String("Metal");
     default:
@@ -51,8 +53,10 @@ int main(int argc, char **argv)
     cmdLineParser.addOption(glOption);
     QCommandLineOption vkOption({ "v", "vulkan" }, QLatin1String("Vulkan"));
     cmdLineParser.addOption(vkOption);
-    QCommandLineOption d3dOption({ "d", "d3d11" }, QLatin1String("Direct3D 11"));
-    cmdLineParser.addOption(d3dOption);
+    QCommandLineOption d3d11Option({ "d", "d3d11" }, QLatin1String("Direct3D 11"));
+    cmdLineParser.addOption(d3d11Option);
+    QCommandLineOption d3d12Option({ "D", "d3d12" }, QLatin1String("Direct3D 12"));
+    cmdLineParser.addOption(d3d12Option);
     QCommandLineOption mtlOption({ "m", "metal" }, QLatin1String("Metal"));
     cmdLineParser.addOption(mtlOption);
 
@@ -63,8 +67,10 @@ int main(int argc, char **argv)
         graphicsApi = QRhi::OpenGLES2;
     if (cmdLineParser.isSet(vkOption))
         graphicsApi = QRhi::Vulkan;
-    if (cmdLineParser.isSet(d3dOption))
+    if (cmdLineParser.isSet(d3d11Option))
         graphicsApi = QRhi::D3D11;
+    if (cmdLineParser.isSet(d3d12Option))
+        graphicsApi = QRhi::D3D12;
     if (cmdLineParser.isSet(mtlOption))
         graphicsApi = QRhi::Metal;
 
diff --git a/tests/manual/rhi/hellominimalcrossgfxtriangle/window.cpp b/tests/manual/rhi/hellominimalcrossgfxtriangle/window.cpp
index c75dd739..f8bacc07 100644
--- a/tests/manual/rhi/hellominimalcrossgfxtriangle/window.cpp
+++ b/tests/manual/rhi/hellominimalcrossgfxtriangle/window.cpp
@@ -16,6 +16,7 @@ Window::Window(QRhi::Implementation graphicsApi)
         setSurfaceType(VulkanSurface);
         break;
     case QRhi::D3D11:
+    case QRhi::D3D12:
         setSurfaceType(Direct3DSurface);
         break;
     case QRhi::Metal:
@@ -81,7 +82,7 @@ bool Window::event(QEvent *e)
 
 void Window::init()
 {
-    QRhi::Flags rhiFlags = QRhi::EnableDebugMarkers | QRhi::EnableProfiling;
+    QRhi::Flags rhiFlags = QRhi::EnableDebugMarkers;
 
     if (m_graphicsApi == QRhi::Null) {
         QRhiNullInitParams params;
@@ -112,6 +113,10 @@ void Window::init()
         QRhiD3D11InitParams params;
         params.enableDebugLayer = true;
         m_rhi.reset(QRhi::create(QRhi::D3D11, &params, rhiFlags));
+    } else if (m_graphicsApi == QRhi::D3D12) {
+        QRhiD3D12InitParams params;
+        params.enableDebugLayer = true;
+        m_rhi.reset(QRhi::create(QRhi::D3D12, &params, rhiFlags));
     }
 #endif
 
diff --git a/tests/manual/rhi/hellominimalcrossgfxtriangle/window.h b/tests/manual/rhi/hellominimalcrossgfxtriangle/window.h
index 972fe6dc..5f0fc099 100644
--- a/tests/manual/rhi/hellominimalcrossgfxtriangle/window.h
+++ b/tests/manual/rhi/hellominimalcrossgfxtriangle/window.h
@@ -5,21 +5,8 @@
 #define WINDOW_H
 
 #include <QWindow>
-
-#include <QtGui/private/qrhinull_p.h>
-#if QT_CONFIG(opengl)
-#include <QtGui/private/qrhigles2_p.h>
 #include <QOffscreenSurface>
-#endif
-#if QT_CONFIG(vulkan)
-#include <QtGui/private/qrhivulkan_p.h>
-#endif
-#ifdef Q_OS_WIN
-#include <QtGui/private/qrhid3d11_p.h>
-#endif
-#if defined(Q_OS_MACOS) || defined(Q_OS_IOS)
-#include <QtGui/private/qrhimetal_p.h>
-#endif
+#include <rhi/qrhi.h>
 
 class Window : public QWindow
 {
diff --git a/tests/manual/rhi/imguirenderer/CMakeLists.txt b/tests/manual/rhi/imguirenderer/CMakeLists.txt
new file mode 100644
index 00000000..619c351d
--- /dev/null
+++ b/tests/manual/rhi/imguirenderer/CMakeLists.txt
@@ -0,0 +1,30 @@
+qt_internal_add_manual_test(imguirenderer
+    GUI
+    SOURCES
+        imguirenderer.cpp
+    LIBRARIES
+        Qt::Gui
+        Qt::GuiPrivate
+)
+
+set_source_files_properties("../shared/texture.vert.qsb"
+    PROPERTIES QT_RESOURCE_ALIAS "texture.vert.qsb"
+)
+set_source_files_properties("../shared/texture.frag.qsb"
+    PROPERTIES QT_RESOURCE_ALIAS "texture.frag.qsb"
+)
+set_source_files_properties("../shared/qt256.png"
+    PROPERTIES QT_RESOURCE_ALIAS "qt256.png"
+)
+qt_internal_add_resource(imguirenderer "imguirenderer"
+    PREFIX
+        "/"
+    FILES
+        "../shared/texture.vert.qsb"
+        "../shared/texture.frag.qsb"
+        "../shared/qt256.png"
+)
+
+set(imgui_base ../shared/imgui)
+set(imgui_target imguirenderer)
+include(${imgui_base}/imgui.cmakeinc)
diff --git a/tests/manual/rhi/imguirenderer/imguirenderer.cpp b/tests/manual/rhi/imguirenderer/imguirenderer.cpp
new file mode 100644
index 00000000..8c3438a7
--- /dev/null
+++ b/tests/manual/rhi/imguirenderer/imguirenderer.cpp
@@ -0,0 +1,128 @@
+// Copyright (C) 2023 The Qt Company Ltd.
+// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
+
+#define EXAMPLEFW_IMGUI
+#include "../shared/examplefw.h"
+
+#include "../shared/cube.h"
+
+struct {
+    QMatrix4x4 winProj;
+    QList<QRhiResource *> releasePool;
+    QRhiResourceUpdateBatch *initialUpdates = nullptr;
+    QRhiBuffer *vbuf = nullptr;
+    QRhiBuffer *ubuf = nullptr;
+    QRhiTexture *tex = nullptr;
+    QRhiSampler *sampler = nullptr;
+    QRhiShaderResourceBindings *srb = nullptr;
+    QRhiGraphicsPipeline *ps = nullptr;
+    bool showDemoWindow = true;
+    float rotation = 0.0f;
+} d;
+
+void Window::customInit()
+{
+    d.initialUpdates = m_r->nextResourceUpdateBatch();
+
+    d.vbuf = m_r->newBuffer(QRhiBuffer::Immutable, QRhiBuffer::VertexBuffer, sizeof(cube));
+    d.vbuf->create();
+    d.releasePool << d.vbuf;
+
+    d.initialUpdates->uploadStaticBuffer(d.vbuf, cube);
+
+    d.ubuf = m_r->newBuffer(QRhiBuffer::Dynamic, QRhiBuffer::UniformBuffer, 68);
+    d.ubuf->create();
+    d.releasePool << d.ubuf;
+    float opacity = 1.0f;
+    d.initialUpdates->updateDynamicBuffer(d.ubuf, 64, 4, &opacity);
+
+    QImage image = QImage(QLatin1String(":/qt256.png")).convertToFormat(QImage::Format_RGBA8888).mirrored();
+    d.tex = m_r->newTexture(QRhiTexture::RGBA8, QSize(image.width(), image.height()), 1, {});
+    d.releasePool << d.tex;
+    d.tex->create();
+    d.initialUpdates->uploadTexture(d.tex, image);
+
+    d.sampler = m_r->newSampler(QRhiSampler::Linear, QRhiSampler::Linear, QRhiSampler::None,
+                                QRhiSampler::ClampToEdge, QRhiSampler::ClampToEdge);
+    d.releasePool << d.sampler;
+    d.sampler->create();
+
+    d.srb = m_r->newShaderResourceBindings();
+    d.releasePool << d.srb;
+    d.srb->setBindings({
+        QRhiShaderResourceBinding::uniformBuffer(0, QRhiShaderResourceBinding::VertexStage | QRhiShaderResourceBinding::FragmentStage, d.ubuf),
+        QRhiShaderResourceBinding::sampledTexture(1, QRhiShaderResourceBinding::FragmentStage, d.tex, d.sampler)
+    });
+    d.srb->create();
+
+    d.ps = m_r->newGraphicsPipeline();
+    d.releasePool << d.ps;
+    d.ps->setCullMode(QRhiGraphicsPipeline::Back);
+    const QRhiShaderStage stages[] = {
+        { QRhiShaderStage::Vertex, getShader(QLatin1String(":/texture.vert.qsb")) },
+        { QRhiShaderStage::Fragment, getShader(QLatin1String(":/texture.frag.qsb")) }
+    };
+    d.ps->setShaderStages(stages, stages + 2);
+    QRhiVertexInputLayout inputLayout;
+    inputLayout.setBindings({
+        { 3 * sizeof(float) },
+        { 2 * sizeof(float) }
+    });
+    inputLayout.setAttributes({
+        { 0, 0, QRhiVertexInputAttribute::Float3, 0 },
+        { 1, 1, QRhiVertexInputAttribute::Float2, 0 }
+    });
+    d.ps->setVertexInputLayout(inputLayout);
+    d.ps->setShaderResourceBindings(d.srb);
+    d.ps->setRenderPassDescriptor(m_rp);
+    d.ps->create();
+}
+
+void Window::customRelease()
+{
+    qDeleteAll(d.releasePool);
+    d.releasePool.clear();
+}
+
+void Window::customRender()
+{
+    QRhiCommandBuffer *cb = m_sc->currentFrameCommandBuffer();
+    QRhiResourceUpdateBatch *u = m_r->nextResourceUpdateBatch();
+    if (d.initialUpdates) {
+        u->merge(d.initialUpdates);
+        d.initialUpdates->release();
+        d.initialUpdates = nullptr;
+    }
+
+    QMatrix4x4 mvp = m_proj;
+    mvp.rotate(d.rotation, 0, 1, 0);
+    u->updateDynamicBuffer(d.ubuf, 0, 64, mvp.constData());
+
+    const QSize outputSizeInPixels = m_sc->currentPixelSize();
+    cb->beginPass(m_sc->currentFrameRenderTarget(), m_clearColor, { 1.0f, 0 }, u);
+
+    cb->setGraphicsPipeline(d.ps);
+    cb->setViewport(QRhiViewport(0, 0, outputSizeInPixels.width(), outputSizeInPixels.height()));
+    cb->setShaderResources();
+    const QRhiCommandBuffer::VertexInput vbufBindings[] = {
+        { d.vbuf, 0 },
+        { d.vbuf, quint32(36 * 3 * sizeof(float)) }
+    };
+    cb->setVertexInput(0, 2, vbufBindings);
+    cb->draw(36);
+
+    m_imguiRenderer->render();
+
+    cb->endPass();
+}
+
+void Window::customGui()
+{
+    ImGui::ShowDemoWindow(&d.showDemoWindow);
+
+    ImGui::SetNextWindowPos(ImVec2(50, 120), ImGuiCond_FirstUseEver);
+    ImGui::SetNextWindowSize(ImVec2(400, 100), ImGuiCond_FirstUseEver);
+    ImGui::Begin("Test");
+    ImGui::SliderFloat("Rotation", &d.rotation, 0.0f, 360.0f);
+    ImGui::End();
+}
diff --git a/tests/manual/rhi/multiwindow/multiwindow.cpp b/tests/manual/rhi/multiwindow/multiwindow.cpp
index f25a68c6..7ff6644e 100644
--- a/tests/manual/rhi/multiwindow/multiwindow.cpp
+++ b/tests/manual/rhi/multiwindow/multiwindow.cpp
@@ -13,33 +13,17 @@
 #include <QWindow>
 #include <QPlatformSurfaceEvent>
 #include <QElapsedTimer>
-
-#include <QtGui/private/qshader_p.h>
 #include <QFile>
-
-#ifndef QT_NO_OPENGL
-#include <QtGui/private/qrhigles2_p.h>
-#include <QOffscreenSurface>
-#endif
-
-#if QT_CONFIG(vulkan)
 #include <QLoggingCategory>
-#include <QtGui/private/qrhivulkan_p.h>
-#endif
-
-#ifdef Q_OS_WIN
-#include <QtGui/private/qrhid3d11_p.h>
-#endif
-
-#if defined(Q_OS_MACOS) || defined(Q_OS_IOS)
-#include <QtGui/private/qrhimetal_p.h>
-#endif
+#include <QOffscreenSurface>
+#include <rhi/qrhi.h>
 
 enum GraphicsApi
 {
     OpenGL,
     Vulkan,
     D3D11,
+    D3D12,
     Metal
 };
 
@@ -54,6 +38,8 @@ static QString graphicsApiName()
         return QLatin1String("Vulkan");
     case D3D11:
         return QLatin1String("Direct3D 11");
+    case D3D12:
+        return QLatin1String("Direct3D 12");
     case Metal:
         return QLatin1String("Metal");
     default:
@@ -98,6 +84,10 @@ void createRhi()
         QRhiD3D11InitParams params;
         params.enableDebugLayer = true;
         r.r = QRhi::create(QRhi::D3D11, &params);
+    } else if (graphicsApi == D3D12) {
+        QRhiD3D12InitParams params;
+        params.enableDebugLayer = true;
+        r.r = QRhi::create(QRhi::D3D12, &params);
     }
 #endif
 
@@ -281,6 +271,7 @@ Window::Window(const QString &title, const QColor &bgColor, int axis, bool noVSy
 #endif
         break;
     case D3D11:
+    case D3D12:
         setSurfaceType(Direct3DSurface);
         break;
     case Metal:
@@ -494,6 +485,8 @@ int main(int argc, char **argv)
     cmdLineParser.addOption(vkOption);
     QCommandLineOption d3dOption({ "d", "d3d11" }, QLatin1String("Direct3D 11"));
     cmdLineParser.addOption(d3dOption);
+    QCommandLineOption d3d12Option({ "D", "d3d12" }, QLatin1String("Direct3D 12"));
+    cmdLineParser.addOption(d3d12Option);
     QCommandLineOption mtlOption({ "m", "metal" }, QLatin1String("Metal"));
     cmdLineParser.addOption(mtlOption);
     cmdLineParser.process(app);
@@ -503,6 +496,8 @@ int main(int argc, char **argv)
         graphicsApi = Vulkan;
     if (cmdLineParser.isSet(d3dOption))
         graphicsApi = D3D11;
+    if (cmdLineParser.isSet(d3d12Option))
+        graphicsApi = D3D12;
     if (cmdLineParser.isSet(mtlOption))
         graphicsApi = Metal;
 
@@ -517,6 +512,7 @@ int main(int argc, char **argv)
     r.instance = new QVulkanInstance;
     if (graphicsApi == Vulkan) {
         r.instance->setLayers({ "VK_LAYER_KHRONOS_validation" });
+        r.instance->setExtensions(QRhiVulkanInitParams::preferredInstanceExtensions());
         if (!r.instance->create()) {
             qWarning("Failed to create Vulkan instance, switching to OpenGL");
             graphicsApi = OpenGL;
diff --git a/tests/manual/rhi/multiwindow_threaded/multiwindow_threaded.cpp b/tests/manual/rhi/multiwindow_threaded/multiwindow_threaded.cpp
index d817c90c..eff0b536 100644
--- a/tests/manual/rhi/multiwindow_threaded/multiwindow_threaded.cpp
+++ b/tests/manual/rhi/multiwindow_threaded/multiwindow_threaded.cpp
@@ -16,27 +16,10 @@
 #include <QEvent>
 #include <QCommandLineParser>
 #include <QElapsedTimer>
-
-#include <QtGui/private/qshader_p.h>
 #include <QFile>
-
-#ifndef QT_NO_OPENGL
-#include <QtGui/private/qrhigles2_p.h>
-#include <QOffscreenSurface>
-#endif
-
-#if QT_CONFIG(vulkan)
 #include <QLoggingCategory>
-#include <QtGui/private/qrhivulkan_p.h>
-#endif
-
-#ifdef Q_OS_WIN
-#include <QtGui/private/qrhid3d11_p.h>
-#endif
-
-#if defined(Q_OS_MACOS) || defined(Q_OS_IOS)
-#include <QtGui/private/qrhimetal_p.h>
-#endif
+#include <QOffscreenSurface>
+#include <rhi/qrhi.h>
 
 #ifdef Q_OS_DARWIN
 #include <QtCore/private/qcore_mac_p.h>
@@ -66,6 +49,8 @@ static QString graphicsApiName()
         return QLatin1String("Vulkan");
     case D3D11:
         return QLatin1String("Direct3D 11");
+    case D3D12:
+        return QLatin1String("Direct3D 12");
     case Metal:
         return QLatin1String("Metal");
     default:
@@ -329,6 +314,10 @@ void Renderer::createRhi()
         QRhiD3D11InitParams params;
         params.enableDebugLayer = true;
         r = QRhi::create(QRhi::D3D11, &params, rhiFlags);
+    } else if (graphicsApi == D3D12) {
+        QRhiD3D12InitParams params;
+        params.enableDebugLayer = true;
+        r = QRhi::create(QRhi::D3D12, &params, rhiFlags);
     }
 #endif
 
@@ -681,6 +670,8 @@ int main(int argc, char **argv)
     cmdLineParser.addOption(vkOption);
     QCommandLineOption d3dOption({ "d", "d3d11" }, QLatin1String("Direct3D 11"));
     cmdLineParser.addOption(d3dOption);
+    QCommandLineOption d3d12Option({ "D", "d3d12" }, QLatin1String("Direct3D 12"));
+    cmdLineParser.addOption(d3d12Option);
     QCommandLineOption mtlOption({ "m", "metal" }, QLatin1String("Metal"));
     cmdLineParser.addOption(mtlOption);
     cmdLineParser.process(app);
@@ -690,6 +681,8 @@ int main(int argc, char **argv)
         graphicsApi = Vulkan;
     if (cmdLineParser.isSet(d3dOption))
         graphicsApi = D3D11;
+    if (cmdLineParser.isSet(d3d12Option))
+        graphicsApi = D3D12;
     if (cmdLineParser.isSet(mtlOption))
         graphicsApi = Metal;
 
diff --git a/tests/manual/rhi/multiwindow_threaded/window.cpp b/tests/manual/rhi/multiwindow_threaded/window.cpp
index ea098b7f..7b5ecf16 100644
--- a/tests/manual/rhi/multiwindow_threaded/window.cpp
+++ b/tests/manual/rhi/multiwindow_threaded/window.cpp
@@ -4,10 +4,6 @@
 #include "window.h"
 #include <QPlatformSurfaceEvent>
 
-#ifndef QT_NO_OPENGL
-#include <QtGui/private/qrhigles2_p.h>
-#endif
-
 #if QT_CONFIG(vulkan)
 extern QVulkanInstance *instance;
 #endif
@@ -25,6 +21,7 @@ Window::Window(const QString &title, GraphicsApi api)
 #endif
         break;
     case D3D11:
+    case D3D12:
         setSurfaceType(Direct3DSurface);
         break;
     case Metal:
diff --git a/tests/manual/rhi/multiwindow_threaded/window.h b/tests/manual/rhi/multiwindow_threaded/window.h
index 3e0212f7..da126928 100644
--- a/tests/manual/rhi/multiwindow_threaded/window.h
+++ b/tests/manual/rhi/multiwindow_threaded/window.h
@@ -11,6 +11,7 @@ enum GraphicsApi
     OpenGL,
     Vulkan,
     D3D11,
+    D3D12,
     Metal
 };
 
diff --git a/tests/manual/rhi/offscreen/offscreen.cpp b/tests/manual/rhi/offscreen/offscreen.cpp
index c4b255f8..04ce8543 100644
--- a/tests/manual/rhi/offscreen/offscreen.cpp
+++ b/tests/manual/rhi/offscreen/offscreen.cpp
@@ -7,27 +7,10 @@
 #include <QFile>
 #include <QLoggingCategory>
 #include <QCommandLineParser>
-#include <QtGui/private/qshader_p.h>
-
-#include <QtGui/private/qrhinull_p.h>
-
-#ifndef QT_NO_OPENGL
-#include <QtGui/private/qrhigles2_p.h>
-#include <QOffscreenSurface>
-#endif
-
-#if QT_CONFIG(vulkan)
 #include <QLoggingCategory>
-#include <QtGui/private/qrhivulkan_p.h>
-#endif
+#include <QOffscreenSurface>
 
-#ifdef Q_OS_WIN
-#include <QtGui/private/qrhid3d11_p.h>
-#endif
-
-#if defined(Q_OS_MACOS) || defined(Q_OS_IOS)
-#include <QtGui/private/qrhimetal_p.h>
-#endif
+#include <rhi/qrhi.h>
 
 //#define TEST_FINISH
 
@@ -51,6 +34,7 @@ enum GraphicsApi
     OpenGL,
     Vulkan,
     D3D11,
+    D3D12,
     Metal,
     Null
 };
@@ -66,6 +50,8 @@ QString graphicsApiName()
         return QLatin1String("Vulkan");
     case D3D11:
         return QLatin1String("Direct3D 11");
+    case D3D12:
+        return QLatin1String("Direct3D 12");
     case Metal:
         return QLatin1String("Metal");
     case Null:
@@ -96,8 +82,10 @@ int main(int argc, char **argv)
     cmdLineParser.addOption(glOption);
     QCommandLineOption vkOption({ "v", "vulkan" }, QLatin1String("Vulkan"));
     cmdLineParser.addOption(vkOption);
-    QCommandLineOption d3dOption({ "d", "d3d11" }, QLatin1String("Direct3D 11"));
-    cmdLineParser.addOption(d3dOption);
+    QCommandLineOption d3d11Option({ "d", "d3d11" }, QLatin1String("Direct3D 11"));
+    cmdLineParser.addOption(d3d11Option);
+    QCommandLineOption d3d12Option({ "D", "d3d12" }, QLatin1String("Direct3D 12"));
+    cmdLineParser.addOption(d3d12Option);
     QCommandLineOption mtlOption({ "m", "metal" }, QLatin1String("Metal"));
     cmdLineParser.addOption(mtlOption);
     QCommandLineOption nullOption({ "n", "null" }, QLatin1String("Null"));
@@ -107,8 +95,10 @@ int main(int argc, char **argv)
         graphicsApi = OpenGL;
     if (cmdLineParser.isSet(vkOption))
         graphicsApi = Vulkan;
-    if (cmdLineParser.isSet(d3dOption))
+    if (cmdLineParser.isSet(d3d11Option))
         graphicsApi = D3D11;
+    if (cmdLineParser.isSet(d3d12Option))
+        graphicsApi = D3D12;
     if (cmdLineParser.isSet(mtlOption))
         graphicsApi = Metal;
     if (cmdLineParser.isSet(nullOption))
@@ -118,10 +108,11 @@ int main(int argc, char **argv)
     qDebug("This is a multi-api example, use command line arguments to override:\n%s", qPrintable(cmdLineParser.helpText()));
 
     QRhi *r = nullptr;
+    QRhi::Flags rhiFlags = QRhi::EnableTimestamps;
 
     if (graphicsApi == Null) {
         QRhiNullInitParams params;
-        r = QRhi::create(QRhi::Null, &params);
+        r = QRhi::create(QRhi::Null, &params, rhiFlags);
     }
 
 #if QT_CONFIG(vulkan)
@@ -133,7 +124,7 @@ int main(int argc, char **argv)
         if (inst.create()) {
             QRhiVulkanInitParams params;
             params.inst = &inst;
-            r = QRhi::create(QRhi::Vulkan, &params);
+            r = QRhi::create(QRhi::Vulkan, &params, rhiFlags);
         } else {
             qWarning("Failed to create Vulkan instance, switching to OpenGL");
             graphicsApi = OpenGL;
@@ -147,7 +138,7 @@ int main(int argc, char **argv)
         offscreenSurface.reset(QRhiGles2InitParams::newFallbackSurface());
         QRhiGles2InitParams params;
         params.fallbackSurface = offscreenSurface.data();
-        r = QRhi::create(QRhi::OpenGLES2, &params);
+        r = QRhi::create(QRhi::OpenGLES2, &params, rhiFlags);
     }
 #endif
 
@@ -155,14 +146,18 @@ int main(int argc, char **argv)
     if (graphicsApi == D3D11) {
         QRhiD3D11InitParams params;
         params.enableDebugLayer = true;
-        r = QRhi::create(QRhi::D3D11, &params);
+        r = QRhi::create(QRhi::D3D11, &params, rhiFlags);
+    } else if (graphicsApi == D3D12) {
+        QRhiD3D12InitParams params;
+        params.enableDebugLayer = true;
+        r = QRhi::create(QRhi::D3D12, &params, rhiFlags);
     }
 #endif
 
 #if defined(Q_OS_MACOS) || defined(Q_OS_IOS)
     if (graphicsApi == Metal) {
         QRhiMetalInitParams params;
-        r = QRhi::create(QRhi::Metal, &params);
+        r = QRhi::create(QRhi::Metal, &params, rhiFlags);
     }
 #endif
 
@@ -289,6 +284,8 @@ int main(int argc, char **argv)
 #ifdef TEST_FINISH
         r->endOffscreenFrame();
 #endif
+        if (r->isFeatureSupported(QRhi::Timestamps))
+            qDebug() << "GPU time:" << cb->lastCompletedGpuTime() << "seconds (may refer to a previous frame)";
     }
 
     delete ps;
diff --git a/tests/manual/rhi/rhiwidget/examplewidget.h b/tests/manual/rhi/rhiwidget/examplewidget.h
index 1b58eedc..b85ae6f1 100644
--- a/tests/manual/rhi/rhiwidget/examplewidget.h
+++ b/tests/manual/rhi/rhiwidget/examplewidget.h
@@ -5,7 +5,7 @@
 #define EXAMPLEWIDGET_H
 
 #include "rhiwidget.h"
-#include <QtGui/private/qrhi_p.h>
+#include <rhi/qrhi.h>
 
 class ExampleRhiWidget : public QRhiWidget
 {
diff --git a/tests/manual/rhi/rhiwidget/rhiwidget.h b/tests/manual/rhi/rhiwidget/rhiwidget.h
index 12ca7db4..94cc108e 100644
--- a/tests/manual/rhi/rhiwidget/rhiwidget.h
+++ b/tests/manual/rhi/rhiwidget/rhiwidget.h
@@ -5,7 +5,7 @@
 #define RHIWIDGET_H
 
 #include <QWidget>
-#include <QtGui/private/qrhi_p.h>
+#include <rhi/qrhi.h>
 
 class QRhiWidgetPrivate;
 
diff --git a/tests/manual/rhi/shared/cube.h b/tests/manual/rhi/shared/cube.h
index 252e80c5..e3ee11b6 100644
--- a/tests/manual/rhi/shared/cube.h
+++ b/tests/manual/rhi/shared/cube.h
@@ -25,6 +25,8 @@
  * Author: Bill Hollings <bill.hollings@brenwill.com>
  */
 
+// Normals added by Qt.
+
 #ifndef CUBE_H
 #define CUBE_H
 
@@ -72,6 +74,7 @@ static const float cube[] = {
      1.0f,-1.0f, 1.0f,
      1.0f, 1.0f, 1.0f,
 
+    // UVs
     0.0f, 1.0f,  // -X side
     1.0f, 1.0f,
     1.0f, 0.0f,
@@ -113,6 +116,49 @@ static const float cube[] = {
     0.0f, 1.0f,
     1.0f, 1.0f,
     1.0f, 0.0f,
+
+    // normals
+    -1.0, 0.0, 0.0, //  -X side
+    -1.0, 0.0, 0.0,
+    -1.0, 0.0, 0.0,
+    -1.0, 0.0, 0.0,
+    -1.0, 0.0, 0.0,
+    -1.0, 0.0, 0.0,
+
+    0.0, 0.0, -1.0, //  -Z side
+    0.0, 0.0, -1.0,
+    0.0, 0.0, -1.0,
+    0.0, 0.0, -1.0,
+    0.0, 0.0, -1.0,
+    0.0, 0.0, -1.0,
+
+    0.0, -1.0, 0.0, //  -Y side
+    0.0, -1.0, 0.0,
+    0.0, -1.0, 0.0,
+    0.0, -1.0, 0.0,
+    0.0, -1.0, 0.0,
+    0.0, -1.0, 0.0,
+
+    0.0, 1.0, 0.0, //  +Y side
+    0.0, 1.0, 0.0,
+    0.0, 1.0, 0.0,
+    0.0, 1.0, 0.0,
+    0.0, 1.0, 0.0,
+    0.0, 1.0, 0.0,
+
+    1.0, 0.0, 0.0, //  +X side
+    1.0, 0.0, 0.0,
+    1.0, 0.0, 0.0,
+    1.0, 0.0, 0.0,
+    1.0, 0.0, 0.0,
+    1.0, 0.0, 0.0,
+
+    0.0, 0.0, 1.0, //  +Z side
+    0.0, 0.0, 1.0,
+    0.0, 0.0, 1.0,
+    0.0, 0.0, 1.0,
+    0.0, 0.0, 1.0,
+    0.0, 0.0, 1.0
 };
 // clang-format on
 
diff --git a/tests/manual/rhi/shared/examplefw.h b/tests/manual/rhi/shared/examplefw.h
index 45f46b8e..2bab0a9e 100644
--- a/tests/manual/rhi/shared/examplefw.h
+++ b/tests/manual/rhi/shared/examplefw.h
@@ -13,26 +13,13 @@
 #include <QTimer>
 #include <QLoggingCategory>
 #include <QColorSpace>
-
-#include <QtGui/private/qshader_p.h>
 #include <QFile>
-#include <QtGui/private/qrhinull_p.h>
-
-#ifndef QT_NO_OPENGL
-#include <QtGui/private/qrhigles2_p.h>
 #include <QOffscreenSurface>
-#endif
+#include <rhi/qrhi.h>
 
-#if QT_CONFIG(vulkan)
-#include <QtGui/private/qrhivulkan_p.h>
-#endif
-
-#ifdef Q_OS_WIN
-#include <QtGui/private/qrhid3d11_p.h>
-#endif
-
-#if defined(Q_OS_MACOS) || defined(Q_OS_IOS)
-#include <QtGui/private/qrhimetal_p.h>
+#ifdef EXAMPLEFW_IMGUI
+#include "qrhiimgui_p.h"
+#include "imgui.h"
 #endif
 
 QShader getShader(const QString &name)
@@ -44,12 +31,22 @@ QShader getShader(const QString &name)
     return QShader();
 }
 
+QByteArray getResource(const QString &name)
+{
+    QFile f(name);
+    if (f.open(QIODevice::ReadOnly))
+        return f.readAll();
+
+    return QByteArray();
+}
+
 enum GraphicsApi
 {
     Null,
     OpenGL,
     Vulkan,
     D3D11,
+    D3D12,
     Metal
 };
 
@@ -66,6 +63,8 @@ QString graphicsApiName()
         return QLatin1String("Vulkan");
     case D3D11:
         return QLatin1String("Direct3D 11");
+    case D3D12:
+        return QLatin1String("Direct3D 12");
     case Metal:
         return QLatin1String("Metal");
     default:
@@ -74,12 +73,11 @@ QString graphicsApiName()
     return QString();
 }
 
-QRhi::Flags rhiFlags = QRhi::EnableDebugMarkers;
+QRhi::Flags rhiFlags = QRhi::EnableDebugMarkers | QRhi::EnableTimestamps;
 int sampleCount = 1;
 QRhiSwapChain::Flags scFlags;
 QRhi::BeginFrameFlags beginFrameFlags;
 QRhi::EndFrameFlags endFrameFlags;
-int framesUntilTdr = -1;
 bool transparentBackground = false;
 bool debugLayer = true;
 
@@ -99,6 +97,9 @@ protected:
     void customInit();
     void customRelease();
     void customRender();
+#ifdef EXAMPLEFW_IMGUI
+    void customGui();
+#endif
 
     void exposeEvent(QExposeEvent *) override;
     bool event(QEvent *) override;
@@ -127,6 +128,11 @@ protected:
 
     QColor m_clearColor;
 
+#ifdef EXAMPLEFW_IMGUI
+    QRhiImguiRenderer *m_imguiRenderer;
+    QRhiImgui m_imgui;
+#endif
+
     friend int main(int, char**);
 };
 
@@ -141,6 +147,7 @@ Window::Window()
         setSurfaceType(VulkanSurface);
         break;
     case D3D11:
+    case D3D12:
         setSurfaceType(Direct3DSurface);
         break;
     case Metal:
@@ -200,6 +207,10 @@ bool Window::event(QEvent *e)
         break;
 
     default:
+#ifdef EXAMPLEFW_IMGUI
+        if (m_imgui.processEvent(e))
+            return true;
+#endif
         break;
     }
 
@@ -238,11 +249,13 @@ void Window::init()
         if (debugLayer)
             qDebug("Enabling D3D11 debug layer");
         params.enableDebugLayer = debugLayer;
-        if (framesUntilTdr > 0) {
-            params.framesUntilKillingDeviceViaTdr = framesUntilTdr;
-            params.repeatDeviceKill = true;
-        }
         m_r = QRhi::create(QRhi::D3D11, &params, rhiFlags);
+    } else if (graphicsApi == D3D12) {
+        QRhiD3D12InitParams params;
+        if (debugLayer)
+            qDebug("Enabling D3D12 debug layer");
+        params.enableDebugLayer = debugLayer;
+        m_r = QRhi::create(QRhi::D3D12, &params, rhiFlags);
     }
 #endif
 
@@ -270,6 +283,21 @@ void Window::init()
     m_rp = m_sc->newCompatibleRenderPassDescriptor();
     m_sc->setRenderPassDescriptor(m_rp);
 
+#ifdef EXAMPLEFW_IMGUI
+    ImGuiIO &io(ImGui::GetIO());
+    io.FontAllowUserScaling = true; // enable ctrl+wheel on windows
+    io.IniFilename = nullptr; // no imgui.ini
+
+    QByteArray font = getResource(QLatin1String(":/fonts/RobotoMono-Medium.ttf"));
+    ImFontConfig fontCfg;
+    fontCfg.FontDataOwnedByAtlas = false;
+    io.Fonts->Clear();
+    io.Fonts->AddFontFromMemoryTTF(font.data(), font.size(), 20.0f, &fontCfg);
+    m_imgui.rebuildFontAtlas();
+
+    m_imguiRenderer = new QRhiImguiRenderer;
+#endif
+
     customInit();
 }
 
@@ -286,6 +314,11 @@ void Window::releaseResources()
     delete m_sc;
     m_sc = nullptr;
 
+#ifdef EXAMPLEFW_IMGUI
+    delete m_imguiRenderer;
+    m_imguiRenderer = nullptr;
+#endif
+
     delete m_r;
     m_r = nullptr;
 
@@ -354,6 +387,20 @@ void Window::render()
         m_frameCount = 0;
     }
 
+#ifdef EXAMPLEFW_IMGUI
+    m_imgui.nextFrame(size(), devicePixelRatio(), QPointF(0, 0), std::bind(&Window::customGui, this));
+    m_imgui.syncRenderer(m_imguiRenderer);
+
+    QRhiCommandBuffer *cb = m_sc->currentFrameCommandBuffer();
+    QRhiRenderTarget *rt = m_sc->currentFrameRenderTarget();
+    const QSize outputSizeInPixels = m_sc->currentPixelSize();
+    const float dpr = devicePixelRatio();
+
+    QMatrix4x4 guiMvp = m_r->clipSpaceCorrMatrix();
+    guiMvp.ortho(0, outputSizeInPixels.width() / dpr, outputSizeInPixels.height() / dpr, 0, 1, -1);
+    m_imguiRenderer->prepare(m_r, rt, cb, guiMvp, 1.0f);
+#endif
+
     customRender();
 
     m_r->endFrame(m_sc, endFrameFlags);
@@ -390,8 +437,10 @@ int main(int argc, char **argv)
     cmdLineParser.addOption(glOption);
     QCommandLineOption vkOption({ "v", "vulkan" }, QLatin1String("Vulkan"));
     cmdLineParser.addOption(vkOption);
-    QCommandLineOption d3dOption({ "d", "d3d11" }, QLatin1String("Direct3D 11"));
-    cmdLineParser.addOption(d3dOption);
+    QCommandLineOption d3d11Option({ "d", "d3d11" }, QLatin1String("Direct3D 11"));
+    cmdLineParser.addOption(d3d11Option);
+    QCommandLineOption d3d12Option({ "D", "d3d12" }, QLatin1String("Direct3D 12"));
+    cmdLineParser.addOption(d3d12Option);
     QCommandLineOption mtlOption({ "m", "metal" }, QLatin1String("Metal"));
     cmdLineParser.addOption(mtlOption);
     // Testing cleanup both with QWindow::close() (hitting X or Alt-F4) and
@@ -401,12 +450,7 @@ int main(int argc, char **argv)
     cmdLineParser.addOption(sdOption);
     QCommandLineOption coreProfOption({ "c", "core" }, QLatin1String("Request a core profile context for OpenGL"));
     cmdLineParser.addOption(coreProfOption);
-    // Attempt testing device lost situations on D3D at least.
-    QCommandLineOption tdrOption(QLatin1String("curse"), QLatin1String("Curse the graphics device. "
-                                                        "(generate a device reset every <count> frames when on D3D11)"),
-                                 QLatin1String("count"));
-    cmdLineParser.addOption(tdrOption);
-    // Allow testing preferring the software adapter (D3D).
+    // Allow testing preferring the software adapter (D3D, Vulkan).
     QCommandLineOption swOption(QLatin1String("software"), QLatin1String("Prefer a software renderer when choosing the adapter. "
                                                                          "Only applicable with some APIs and platforms."));
     cmdLineParser.addOption(swOption);
@@ -421,8 +465,10 @@ int main(int argc, char **argv)
         graphicsApi = OpenGL;
     if (cmdLineParser.isSet(vkOption))
         graphicsApi = Vulkan;
-    if (cmdLineParser.isSet(d3dOption))
+    if (cmdLineParser.isSet(d3d11Option))
         graphicsApi = D3D11;
+    if (cmdLineParser.isSet(d3d12Option))
+        graphicsApi = D3D12;
     if (cmdLineParser.isSet(mtlOption))
         graphicsApi = Metal;
 
@@ -471,11 +517,14 @@ int main(int argc, char **argv)
             inst.setLayers({ "VK_LAYER_KHRONOS_validation" });
         }
         const QVersionNumber supportedVersion = inst.supportedApiVersion();
-        qDebug() << "Supported Vulkan API version:" << supportedVersion;
-        if (supportedVersion >= QVersionNumber(1, 1)) {
-            qDebug("Requesting Vulkan API 1.1 on the VkInstance");
+        if (supportedVersion >= QVersionNumber(1, 3))
+            inst.setApiVersion(QVersionNumber(1, 3));
+        else if (supportedVersion >= QVersionNumber(1, 2))
+            inst.setApiVersion(QVersionNumber(1, 2));
+        else if (supportedVersion >= QVersionNumber(1, 1))
             inst.setApiVersion(QVersionNumber(1, 1));
-        }
+        qDebug() << "Requesting Vulkan API" << inst.apiVersion().toString();
+        qDebug() << "Instance-level version was reported as" << supportedVersion.toString();
         inst.setExtensions(QRhiVulkanInitParams::preferredInstanceExtensions());
         if (!inst.create()) {
             qWarning("Failed to create Vulkan instance, switching to OpenGL");
@@ -484,9 +533,6 @@ int main(int argc, char **argv)
     }
 #endif
 
-    if (cmdLineParser.isSet(tdrOption))
-        framesUntilTdr = cmdLineParser.value(tdrOption).toInt();
-
     if (cmdLineParser.isSet(swOption))
         rhiFlags |= QRhi::PreferSoftwareRenderer;
 
diff --git a/tests/manual/rhi/shared/imgui/buildshaders.bat b/tests/manual/rhi/shared/imgui/buildshaders.bat
new file mode 100644
index 00000000..eec4e3a0
--- /dev/null
+++ b/tests/manual/rhi/shared/imgui/buildshaders.bat
@@ -0,0 +1,2 @@
+qsb --glsl "100 es,120,150" --hlsl 50 --msl 12 -c imgui.vert -o imgui.vert.qsb
+qsb --glsl "100 es,120,150" --hlsl 50 --msl 12 -c imgui.frag -o imgui.frag.qsb
diff --git a/tests/manual/rhi/shared/imgui/fonts/LICENSE.txt b/tests/manual/rhi/shared/imgui/fonts/LICENSE.txt
new file mode 100644
index 00000000..d6456956
--- /dev/null
+++ b/tests/manual/rhi/shared/imgui/fonts/LICENSE.txt
@@ -0,0 +1,202 @@
+
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diff --git a/tests/manual/rhi/shared/imgui/fonts/RobotoMono-Medium.ttf b/tests/manual/rhi/shared/imgui/fonts/RobotoMono-Medium.ttf
new file mode 100644
index 00000000..752d0fab
Binary files /dev/null and b/tests/manual/rhi/shared/imgui/fonts/RobotoMono-Medium.ttf differ
diff --git a/tests/manual/rhi/shared/imgui/imgui.cmakeinc b/tests/manual/rhi/shared/imgui/imgui.cmakeinc
new file mode 100644
index 00000000..3e742040
--- /dev/null
+++ b/tests/manual/rhi/shared/imgui/imgui.cmakeinc
@@ -0,0 +1,29 @@
+set(imgui_sources
+    ${imgui_base}/imgui/imgui.cpp
+    ${imgui_base}/imgui/imgui_draw.cpp
+    ${imgui_base}/imgui/imgui_tables.cpp
+    ${imgui_base}/imgui/imgui_widgets.cpp
+    ${imgui_base}/imgui/imgui_demo.cpp
+    ${imgui_base}/qrhiimgui.cpp
+    ${imgui_base}/qrhiimgui_p.h
+)
+
+target_sources(${imgui_target} PRIVATE
+    ${imgui_sources}
+)
+
+target_include_directories(${imgui_target} PRIVATE
+    ${imgui_base}
+    ${imgui_base}/imgui
+)
+
+qt6_add_resources(${imgui_target} "imgui_resources"
+    PREFIX
+        "/"
+    BASE
+        ${imgui_base}
+    FILES
+        ${imgui_base}/imgui.vert.qsb
+        ${imgui_base}/imgui.frag.qsb
+        ${imgui_base}/fonts/RobotoMono-Medium.ttf
+)
diff --git a/tests/manual/rhi/shared/imgui/imgui.frag b/tests/manual/rhi/shared/imgui/imgui.frag
new file mode 100644
index 00000000..51bd615d
--- /dev/null
+++ b/tests/manual/rhi/shared/imgui/imgui.frag
@@ -0,0 +1,21 @@
+#version 440
+
+layout(location = 0) in vec2 v_texcoord;
+layout(location = 1) in vec4 v_color;
+
+layout(location = 0) out vec4 fragColor;
+
+layout(std140, binding = 0) uniform buf {
+    mat4 mvp;
+    float opacity;
+};
+
+layout(binding = 1) uniform sampler2D tex;
+
+void main()
+{
+    vec4 c = v_color * texture(tex, v_texcoord);
+    c.a *= opacity;
+    c.rgb *= c.a;
+    fragColor = c;
+}
diff --git a/tests/manual/rhi/shared/imgui/imgui.frag.qsb b/tests/manual/rhi/shared/imgui/imgui.frag.qsb
new file mode 100644
index 00000000..2abf236f
Binary files /dev/null and b/tests/manual/rhi/shared/imgui/imgui.frag.qsb differ
diff --git a/tests/manual/rhi/shared/imgui/imgui.vert b/tests/manual/rhi/shared/imgui/imgui.vert
new file mode 100644
index 00000000..bb24a22c
--- /dev/null
+++ b/tests/manual/rhi/shared/imgui/imgui.vert
@@ -0,0 +1,20 @@
+#version 440
+
+layout(location = 0) in vec4 position;
+layout(location = 1) in vec2 texcoord;
+layout(location = 2) in vec4 color;
+
+layout(location = 0) out vec2 v_texcoord;
+layout(location = 1) out vec4 v_color;
+
+layout(std140, binding = 0) uniform buf {
+    mat4 mvp;
+    float opacity;
+};
+
+void main()
+{
+    v_texcoord = texcoord;
+    v_color = color;
+    gl_Position = mvp * vec4(position.xy, 0.0, 1.0);
+}
diff --git a/tests/manual/rhi/shared/imgui/imgui.vert.qsb b/tests/manual/rhi/shared/imgui/imgui.vert.qsb
new file mode 100644
index 00000000..0f2300f6
Binary files /dev/null and b/tests/manual/rhi/shared/imgui/imgui.vert.qsb differ
diff --git a/tests/manual/rhi/shared/imgui/imgui/LICENSE.txt b/tests/manual/rhi/shared/imgui/imgui/LICENSE.txt
new file mode 100644
index 00000000..4023e0ca
--- /dev/null
+++ b/tests/manual/rhi/shared/imgui/imgui/LICENSE.txt
@@ -0,0 +1,21 @@
+The MIT License (MIT)
+
+Copyright (c) 2014-2022 Omar Cornut
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
diff --git a/tests/manual/rhi/shared/imgui/imgui/imconfig.h b/tests/manual/rhi/shared/imgui/imgui/imconfig.h
new file mode 100644
index 00000000..2a4e1975
--- /dev/null
+++ b/tests/manual/rhi/shared/imgui/imgui/imconfig.h
@@ -0,0 +1,125 @@
+//-----------------------------------------------------------------------------
+// COMPILE-TIME OPTIONS FOR DEAR IMGUI
+// Runtime options (clipboard callbacks, enabling various features, etc.) can generally be set via the ImGuiIO structure.
+// You can use ImGui::SetAllocatorFunctions() before calling ImGui::CreateContext() to rewire memory allocation functions.
+//-----------------------------------------------------------------------------
+// A) You may edit imconfig.h (and not overwrite it when updating Dear ImGui, or maintain a patch/rebased branch with your modifications to it)
+// B) or '#define IMGUI_USER_CONFIG "my_imgui_config.h"' in your project and then add directives in your own file without touching this template.
+//-----------------------------------------------------------------------------
+// You need to make sure that configuration settings are defined consistently _everywhere_ Dear ImGui is used, which include the imgui*.cpp
+// files but also _any_ of your code that uses Dear ImGui. This is because some compile-time options have an affect on data structures.
+// Defining those options in imconfig.h will ensure every compilation unit gets to see the same data structure layouts.
+// Call IMGUI_CHECKVERSION() from your .cpp files to verify that the data structures your files are using are matching the ones imgui.cpp is using.
+//-----------------------------------------------------------------------------
+
+#pragma once
+
+//---- Define assertion handler. Defaults to calling assert().
+// If your macro uses multiple statements, make sure is enclosed in a 'do { .. } while (0)' block so it can be used as a single statement.
+//#define IM_ASSERT(_EXPR)  MyAssert(_EXPR)
+//#define IM_ASSERT(_EXPR)  ((void)(_EXPR))     // Disable asserts
+
+//---- Define attributes of all API symbols declarations, e.g. for DLL under Windows
+// Using Dear ImGui via a shared library is not recommended, because of function call overhead and because we don't guarantee backward nor forward ABI compatibility.
+// DLL users: heaps and globals are not shared across DLL boundaries! You will need to call SetCurrentContext() + SetAllocatorFunctions()
+// for each static/DLL boundary you are calling from. Read "Context and Memory Allocators" section of imgui.cpp for more details.
+//#define IMGUI_API __declspec( dllexport )
+//#define IMGUI_API __declspec( dllimport )
+
+//---- Don't define obsolete functions/enums/behaviors. Consider enabling from time to time after updating to avoid using soon-to-be obsolete function/names.
+//#define IMGUI_DISABLE_OBSOLETE_FUNCTIONS
+//#define IMGUI_DISABLE_OBSOLETE_KEYIO                      // 1.87: disable legacy io.KeyMap[]+io.KeysDown[] in favor io.AddKeyEvent(). This will be folded into IMGUI_DISABLE_OBSOLETE_FUNCTIONS in a few versions.
+
+//---- Disable all of Dear ImGui or don't implement standard windows/tools.
+// It is very strongly recommended to NOT disable the demo windows and debug tool during development. They are extremely useful in day to day work. Please read comments in imgui_demo.cpp.
+//#define IMGUI_DISABLE                                     // Disable everything: all headers and source files will be empty.
+//#define IMGUI_DISABLE_DEMO_WINDOWS                        // Disable demo windows: ShowDemoWindow()/ShowStyleEditor() will be empty.
+//#define IMGUI_DISABLE_DEBUG_TOOLS                         // Disable metrics/debugger and other debug tools: ShowMetricsWindow(), ShowDebugLogWindow() and ShowStackToolWindow() will be empty (this was called IMGUI_DISABLE_METRICS_WINDOW before 1.88).
+
+//---- Don't implement some functions to reduce linkage requirements.
+//#define IMGUI_DISABLE_WIN32_DEFAULT_CLIPBOARD_FUNCTIONS   // [Win32] Don't implement default clipboard handler. Won't use and link with OpenClipboard/GetClipboardData/CloseClipboard etc. (user32.lib/.a, kernel32.lib/.a)
+//#define IMGUI_ENABLE_WIN32_DEFAULT_IME_FUNCTIONS          // [Win32] [Default with Visual Studio] Implement default IME handler (require imm32.lib/.a, auto-link for Visual Studio, -limm32 on command-line for MinGW)
+//#define IMGUI_DISABLE_WIN32_DEFAULT_IME_FUNCTIONS         // [Win32] [Default with non-Visual Studio compilers] Don't implement default IME handler (won't require imm32.lib/.a)
+//#define IMGUI_DISABLE_WIN32_FUNCTIONS                     // [Win32] Won't use and link with any Win32 function (clipboard, ime).
+//#define IMGUI_ENABLE_OSX_DEFAULT_CLIPBOARD_FUNCTIONS      // [OSX] Implement default OSX clipboard handler (need to link with '-framework ApplicationServices', this is why this is not the default).
+//#define IMGUI_DISABLE_DEFAULT_FORMAT_FUNCTIONS            // Don't implement ImFormatString/ImFormatStringV so you can implement them yourself (e.g. if you don't want to link with vsnprintf)
+//#define IMGUI_DISABLE_DEFAULT_MATH_FUNCTIONS              // Don't implement ImFabs/ImSqrt/ImPow/ImFmod/ImCos/ImSin/ImAcos/ImAtan2 so you can implement them yourself.
+//#define IMGUI_DISABLE_FILE_FUNCTIONS                      // Don't implement ImFileOpen/ImFileClose/ImFileRead/ImFileWrite and ImFileHandle at all (replace them with dummies)
+//#define IMGUI_DISABLE_DEFAULT_FILE_FUNCTIONS              // Don't implement ImFileOpen/ImFileClose/ImFileRead/ImFileWrite and ImFileHandle so you can implement them yourself if you don't want to link with fopen/fclose/fread/fwrite. This will also disable the LogToTTY() function.
+//#define IMGUI_DISABLE_DEFAULT_ALLOCATORS                  // Don't implement default allocators calling malloc()/free() to avoid linking with them. You will need to call ImGui::SetAllocatorFunctions().
+//#define IMGUI_DISABLE_SSE                                 // Disable use of SSE intrinsics even if available
+
+//---- Include imgui_user.h at the end of imgui.h as a convenience
+//#define IMGUI_INCLUDE_IMGUI_USER_H
+
+//---- Pack colors to BGRA8 instead of RGBA8 (to avoid converting from one to another)
+//#define IMGUI_USE_BGRA_PACKED_COLOR
+
+//---- Use 32-bit for ImWchar (default is 16-bit) to support unicode planes 1-16. (e.g. point beyond 0xFFFF like emoticons, dingbats, symbols, shapes, ancient languages, etc...)
+//#define IMGUI_USE_WCHAR32
+
+//---- Avoid multiple STB libraries implementations, or redefine path/filenames to prioritize another version
+// By default the embedded implementations are declared static and not available outside of Dear ImGui sources files.
+//#define IMGUI_STB_TRUETYPE_FILENAME   "my_folder/stb_truetype.h"
+//#define IMGUI_STB_RECT_PACK_FILENAME  "my_folder/stb_rect_pack.h"
+//#define IMGUI_STB_SPRINTF_FILENAME    "my_folder/stb_sprintf.h"    // only used if enabled
+//#define IMGUI_DISABLE_STB_TRUETYPE_IMPLEMENTATION
+//#define IMGUI_DISABLE_STB_RECT_PACK_IMPLEMENTATION
+
+//---- Use stb_sprintf.h for a faster implementation of vsnprintf instead of the one from libc (unless IMGUI_DISABLE_DEFAULT_FORMAT_FUNCTIONS is defined)
+// Compatibility checks of arguments and formats done by clang and GCC will be disabled in order to support the extra formats provided by stb_sprintf.h.
+//#define IMGUI_USE_STB_SPRINTF
+
+//---- Use FreeType to build and rasterize the font atlas (instead of stb_truetype which is embedded by default in Dear ImGui)
+// Requires FreeType headers to be available in the include path. Requires program to be compiled with 'misc/freetype/imgui_freetype.cpp' (in this repository) + the FreeType library (not provided).
+// On Windows you may use vcpkg with 'vcpkg install freetype --triplet=x64-windows' + 'vcpkg integrate install'.
+//#define IMGUI_ENABLE_FREETYPE
+
+//---- Use stb_truetype to build and rasterize the font atlas (default)
+// The only purpose of this define is if you want force compilation of the stb_truetype backend ALONG with the FreeType backend.
+//#define IMGUI_ENABLE_STB_TRUETYPE
+
+//---- Define constructor and implicit cast operators to convert back<>forth between your math types and ImVec2/ImVec4.
+// This will be inlined as part of ImVec2 and ImVec4 class declarations.
+/*
+#define IM_VEC2_CLASS_EXTRA                                                     \
+        constexpr ImVec2(const MyVec2& f) : x(f.x), y(f.y) {}                   \
+        operator MyVec2() const { return MyVec2(x,y); }
+
+#define IM_VEC4_CLASS_EXTRA                                                     \
+        constexpr ImVec4(const MyVec4& f) : x(f.x), y(f.y), z(f.z), w(f.w) {}   \
+        operator MyVec4() const { return MyVec4(x,y,z,w); }
+*/
+
+//---- Use 32-bit vertex indices (default is 16-bit) is one way to allow large meshes with more than 64K vertices.
+// Your renderer backend will need to support it (most example renderer backends support both 16/32-bit indices).
+// Another way to allow large meshes while keeping 16-bit indices is to handle ImDrawCmd::VtxOffset in your renderer.
+// Read about ImGuiBackendFlags_RendererHasVtxOffset for details.
+#define ImDrawIdx unsigned int
+
+//---- Override ImDrawCallback signature (will need to modify renderer backends accordingly)
+//struct ImDrawList;
+//struct ImDrawCmd;
+//typedef void (*MyImDrawCallback)(const ImDrawList* draw_list, const ImDrawCmd* cmd, void* my_renderer_user_data);
+//#define ImDrawCallback MyImDrawCallback
+
+//---- Debug Tools: Macro to break in Debugger
+// (use 'Metrics->Tools->Item Picker' to pick widgets with the mouse and break into them for easy debugging.)
+//#define IM_DEBUG_BREAK  IM_ASSERT(0)
+//#define IM_DEBUG_BREAK  __debugbreak()
+
+//---- Debug Tools: Have the Item Picker break in the ItemAdd() function instead of ItemHoverable(),
+// (which comes earlier in the code, will catch a few extra items, allow picking items other than Hovered one.)
+// This adds a small runtime cost which is why it is not enabled by default.
+//#define IMGUI_DEBUG_TOOL_ITEM_PICKER_EX
+
+//---- Debug Tools: Enable slower asserts
+//#define IMGUI_DEBUG_PARANOID
+
+//---- Tip: You can add extra functions within the ImGui:: namespace, here or in your own headers files.
+/*
+namespace ImGui
+{
+    void MyFunction(const char* name, const MyMatrix44& v);
+}
+*/
diff --git a/tests/manual/rhi/shared/imgui/imgui/imgui.cpp b/tests/manual/rhi/shared/imgui/imgui/imgui.cpp
new file mode 100644
index 00000000..b979938d
--- /dev/null
+++ b/tests/manual/rhi/shared/imgui/imgui/imgui.cpp
@@ -0,0 +1,13444 @@
+// dear imgui, v1.88
+// (main code and documentation)
+
+// Help:
+// - Read FAQ at http://dearimgui.org/faq
+// - Newcomers, read 'Programmer guide' below for notes on how to setup Dear ImGui in your codebase.
+// - Call and read ImGui::ShowDemoWindow() in imgui_demo.cpp. All applications in examples/ are doing that.
+// Read imgui.cpp for details, links and comments.
+
+// Resources:
+// - FAQ                   http://dearimgui.org/faq
+// - Homepage & latest     https://github.com/ocornut/imgui
+// - Releases & changelog  https://github.com/ocornut/imgui/releases
+// - Gallery               https://github.com/ocornut/imgui/issues/5243 (please post your screenshots/video there!)
+// - Wiki                  https://github.com/ocornut/imgui/wiki (lots of good stuff there)
+// - Glossary              https://github.com/ocornut/imgui/wiki/Glossary
+// - Issues & support      https://github.com/ocornut/imgui/issues
+
+// Getting Started?
+// - For first-time users having issues compiling/linking/running or issues loading fonts:
+//   please post in https://github.com/ocornut/imgui/discussions if you cannot find a solution in resources above.
+
+// Developed by Omar Cornut and every direct or indirect contributors to the GitHub.
+// See LICENSE.txt for copyright and licensing details (standard MIT License).
+// This library is free but needs your support to sustain development and maintenance.
+// Businesses: you can support continued development via invoiced technical support, maintenance and sponsoring contracts. Please reach out to "contact AT dearimgui.com".
+// Individuals: you can support continued development via donations. See docs/README or web page.
+
+// It is recommended that you don't modify imgui.cpp! It will become difficult for you to update the library.
+// Note that 'ImGui::' being a namespace, you can add functions into the namespace from your own source files, without
+// modifying imgui.h or imgui.cpp. You may include imgui_internal.h to access internal data structures, but it doesn't
+// come with any guarantee of forward compatibility. Discussing your changes on the GitHub Issue Tracker may lead you
+// to a better solution or official support for them.
+
+/*
+
+Index of this file:
+
+DOCUMENTATION
+
+- MISSION STATEMENT
+- END-USER GUIDE
+- PROGRAMMER GUIDE
+  - READ FIRST
+  - HOW TO UPDATE TO A NEWER VERSION OF DEAR IMGUI
+  - GETTING STARTED WITH INTEGRATING DEAR IMGUI IN YOUR CODE/ENGINE
+  - HOW A SIMPLE APPLICATION MAY LOOK LIKE
+  - HOW A SIMPLE RENDERING FUNCTION MAY LOOK LIKE
+  - USING GAMEPAD/KEYBOARD NAVIGATION CONTROLS
+- API BREAKING CHANGES (read me when you update!)
+- FREQUENTLY ASKED QUESTIONS (FAQ)
+  - Read all answers online: https://www.dearimgui.org/faq, or in docs/FAQ.md (with a Markdown viewer)
+
+CODE
+(search for "[SECTION]" in the code to find them)
+
+// [SECTION] INCLUDES
+// [SECTION] FORWARD DECLARATIONS
+// [SECTION] CONTEXT AND MEMORY ALLOCATORS
+// [SECTION] USER FACING STRUCTURES (ImGuiStyle, ImGuiIO)
+// [SECTION] MISC HELPERS/UTILITIES (Geometry functions)
+// [SECTION] MISC HELPERS/UTILITIES (String, Format, Hash functions)
+// [SECTION] MISC HELPERS/UTILITIES (File functions)
+// [SECTION] MISC HELPERS/UTILITIES (ImText* functions)
+// [SECTION] MISC HELPERS/UTILITIES (Color functions)
+// [SECTION] ImGuiStorage
+// [SECTION] ImGuiTextFilter
+// [SECTION] ImGuiTextBuffer
+// [SECTION] ImGuiListClipper
+// [SECTION] STYLING
+// [SECTION] RENDER HELPERS
+// [SECTION] MAIN CODE (most of the code! lots of stuff, needs tidying up!)
+// [SECTION] INPUTS
+// [SECTION] ERROR CHECKING
+// [SECTION] LAYOUT
+// [SECTION] SCROLLING
+// [SECTION] TOOLTIPS
+// [SECTION] POPUPS
+// [SECTION] KEYBOARD/GAMEPAD NAVIGATION
+// [SECTION] DRAG AND DROP
+// [SECTION] LOGGING/CAPTURING
+// [SECTION] SETTINGS
+// [SECTION] VIEWPORTS
+// [SECTION] PLATFORM DEPENDENT HELPERS
+// [SECTION] METRICS/DEBUGGER WINDOW
+// [SECTION] DEBUG LOG WINDOW
+// [SECTION] OTHER DEBUG TOOLS (ITEM PICKER, STACK TOOL)
+
+*/
+
+//-----------------------------------------------------------------------------
+// DOCUMENTATION
+//-----------------------------------------------------------------------------
+
+/*
+
+ MISSION STATEMENT
+ =================
+
+ - Easy to use to create code-driven and data-driven tools.
+ - Easy to use to create ad hoc short-lived tools and long-lived, more elaborate tools.
+ - Easy to hack and improve.
+ - Minimize setup and maintenance.
+ - Minimize state storage on user side.
+ - Minimize state synchronization.
+ - Portable, minimize dependencies, run on target (consoles, phones, etc.).
+ - Efficient runtime and memory consumption.
+
+ Designed for developers and content-creators, not the typical end-user! Some of the current weaknesses includes:
+
+ - Doesn't look fancy, doesn't animate.
+ - Limited layout features, intricate layouts are typically crafted in code.
+
+
+ END-USER GUIDE
+ ==============
+
+ - Double-click on title bar to collapse window.
+ - Click upper right corner to close a window, available when 'bool* p_open' is passed to ImGui::Begin().
+ - Click and drag on lower right corner to resize window (double-click to auto fit window to its contents).
+ - Click and drag on any empty space to move window.
+ - TAB/SHIFT+TAB to cycle through keyboard editable fields.
+ - CTRL+Click on a slider or drag box to input value as text.
+ - Use mouse wheel to scroll.
+ - Text editor:
+   - Hold SHIFT or use mouse to select text.
+   - CTRL+Left/Right to word jump.
+   - CTRL+Shift+Left/Right to select words.
+   - CTRL+A our Double-Click to select all.
+   - CTRL+X,CTRL+C,CTRL+V to use OS clipboard/
+   - CTRL+Z,CTRL+Y to undo/redo.
+   - ESCAPE to revert text to its original value.
+   - Controls are automatically adjusted for OSX to match standard OSX text editing operations.
+ - General Keyboard controls: enable with ImGuiConfigFlags_NavEnableKeyboard.
+ - General Gamepad controls: enable with ImGuiConfigFlags_NavEnableGamepad. See suggested mappings in imgui.h ImGuiNavInput_ + download PNG/PSD at http://dearimgui.org/controls_sheets
+
+
+ PROGRAMMER GUIDE
+ ================
+
+ READ FIRST
+ ----------
+ - Remember to check the wonderful Wiki (https://github.com/ocornut/imgui/wiki)
+ - Your code creates the UI, if your code doesn't run the UI is gone! The UI can be highly dynamic, there are no construction or
+   destruction steps, less superfluous data retention on your side, less state duplication, less state synchronization, fewer bugs.
+ - Call and read ImGui::ShowDemoWindow() for demo code demonstrating most features.
+ - The library is designed to be built from sources. Avoid pre-compiled binaries and packaged versions. See imconfig.h to configure your build.
+ - Dear ImGui is an implementation of the IMGUI paradigm (immediate-mode graphical user interface, a term coined by Casey Muratori).
+   You can learn about IMGUI principles at http://www.johno.se/book/imgui.html, http://mollyrocket.com/861 & more links in Wiki.
+ - Dear ImGui is a "single pass" rasterizing implementation of the IMGUI paradigm, aimed at ease of use and high-performances.
+   For every application frame, your UI code will be called only once. This is in contrast to e.g. Unity's implementation of an IMGUI,
+   where the UI code is called multiple times ("multiple passes") from a single entry point. There are pros and cons to both approaches.
+ - Our origin is on the top-left. In axis aligned bounding boxes, Min = top-left, Max = bottom-right.
+ - This codebase is also optimized to yield decent performances with typical "Debug" builds settings.
+ - Please make sure you have asserts enabled (IM_ASSERT redirects to assert() by default, but can be redirected).
+   If you get an assert, read the messages and comments around the assert.
+ - C++: this is a very C-ish codebase: we don't rely on C++11, we don't include any C++ headers, and ImGui:: is a namespace.
+ - C++: ImVec2/ImVec4 do not expose math operators by default, because it is expected that you use your own math types.
+   See FAQ "How can I use my own math types instead of ImVec2/ImVec4?" for details about setting up imconfig.h for that.
+   However, imgui_internal.h can optionally export math operators for ImVec2/ImVec4, which we use in this codebase.
+ - C++: pay attention that ImVector<> manipulates plain-old-data and does not honor construction/destruction (avoid using it in your code!).
+
+
+ HOW TO UPDATE TO A NEWER VERSION OF DEAR IMGUI
+ ----------------------------------------------
+ - Overwrite all the sources files except for imconfig.h (if you have modified your copy of imconfig.h)
+ - Or maintain your own branch where you have imconfig.h modified as a top-most commit which you can regularly rebase over "master".
+ - You can also use '#define IMGUI_USER_CONFIG "my_config_file.h" to redirect configuration to your own file.
+ - Read the "API BREAKING CHANGES" section (below). This is where we list occasional API breaking changes.
+   If a function/type has been renamed / or marked obsolete, try to fix the name in your code before it is permanently removed
+   from the public API. If you have a problem with a missing function/symbols, search for its name in the code, there will
+   likely be a comment about it. Please report any issue to the GitHub page!
+ - To find out usage of old API, you can add '#define IMGUI_DISABLE_OBSOLETE_FUNCTIONS' in your configuration file.
+ - Try to keep your copy of Dear ImGui reasonably up to date.
+
+
+ GETTING STARTED WITH INTEGRATING DEAR IMGUI IN YOUR CODE/ENGINE
+ ---------------------------------------------------------------
+ - Run and study the examples and demo in imgui_demo.cpp to get acquainted with the library.
+ - In the majority of cases you should be able to use unmodified backends files available in the backends/ folder.
+ - Add the Dear ImGui source files + selected backend source files to your projects or using your preferred build system.
+   It is recommended you build and statically link the .cpp files as part of your project and NOT as a shared library (DLL).
+ - You can later customize the imconfig.h file to tweak some compile-time behavior, such as integrating Dear ImGui types with your own maths types.
+ - When using Dear ImGui, your programming IDE is your friend: follow the declaration of variables, functions and types to find comments about them.
+ - Dear ImGui never touches or knows about your GPU state. The only function that knows about GPU is the draw function that you provide.
+   Effectively it means you can create widgets at any time in your code, regardless of considerations of being in "update" vs "render"
+   phases of your own application. All rendering information is stored into command-lists that you will retrieve after calling ImGui::Render().
+ - Refer to the backends and demo applications in the examples/ folder for instruction on how to setup your code.
+ - If you are running over a standard OS with a common graphics API, you should be able to use unmodified imgui_impl_*** files from the examples/ folder.
+
+
+ HOW A SIMPLE APPLICATION MAY LOOK LIKE
+ --------------------------------------
+ EXHIBIT 1: USING THE EXAMPLE BACKENDS (= imgui_impl_XXX.cpp files from the backends/ folder).
+ The sub-folders in examples/ contain examples applications following this structure.
+
+     // Application init: create a dear imgui context, setup some options, load fonts
+     ImGui::CreateContext();
+     ImGuiIO& io = ImGui::GetIO();
+     // TODO: Set optional io.ConfigFlags values, e.g. 'io.ConfigFlags |= ImGuiConfigFlags_NavEnableKeyboard' to enable keyboard controls.
+     // TODO: Fill optional fields of the io structure later.
+     // TODO: Load TTF/OTF fonts if you don't want to use the default font.
+
+     // Initialize helper Platform and Renderer backends (here we are using imgui_impl_win32.cpp and imgui_impl_dx11.cpp)
+     ImGui_ImplWin32_Init(hwnd);
+     ImGui_ImplDX11_Init(g_pd3dDevice, g_pd3dDeviceContext);
+
+     // Application main loop
+     while (true)
+     {
+         // Feed inputs to dear imgui, start new frame
+         ImGui_ImplDX11_NewFrame();
+         ImGui_ImplWin32_NewFrame();
+         ImGui::NewFrame();
+
+         // Any application code here
+         ImGui::Text("Hello, world!");
+
+         // Render dear imgui into screen
+         ImGui::Render();
+         ImGui_ImplDX11_RenderDrawData(ImGui::GetDrawData());
+         g_pSwapChain->Present(1, 0);
+     }
+
+     // Shutdown
+     ImGui_ImplDX11_Shutdown();
+     ImGui_ImplWin32_Shutdown();
+     ImGui::DestroyContext();
+
+ EXHIBIT 2: IMPLEMENTING CUSTOM BACKEND / CUSTOM ENGINE
+
+     // Application init: create a dear imgui context, setup some options, load fonts
+     ImGui::CreateContext();
+     ImGuiIO& io = ImGui::GetIO();
+     // TODO: Set optional io.ConfigFlags values, e.g. 'io.ConfigFlags |= ImGuiConfigFlags_NavEnableKeyboard' to enable keyboard controls.
+     // TODO: Fill optional fields of the io structure later.
+     // TODO: Load TTF/OTF fonts if you don't want to use the default font.
+
+     // Build and load the texture atlas into a texture
+     // (In the examples/ app this is usually done within the ImGui_ImplXXX_Init() function from one of the demo Renderer)
+     int width, height;
+     unsigned char* pixels = NULL;
+     io.Fonts->GetTexDataAsRGBA32(&pixels, &width, &height);
+
+     // At this point you've got the texture data and you need to upload that to your graphic system:
+     // After we have created the texture, store its pointer/identifier (_in whichever format your engine uses_) in 'io.Fonts->TexID'.
+     // This will be passed back to your via the renderer. Basically ImTextureID == void*. Read FAQ for details about ImTextureID.
+     MyTexture* texture = MyEngine::CreateTextureFromMemoryPixels(pixels, width, height, TEXTURE_TYPE_RGBA32)
+     io.Fonts->SetTexID((void*)texture);
+
+     // Application main loop
+     while (true)
+     {
+        // Setup low-level inputs, e.g. on Win32: calling GetKeyboardState(), or write to those fields from your Windows message handlers, etc.
+        // (In the examples/ app this is usually done within the ImGui_ImplXXX_NewFrame() function from one of the demo Platform Backends)
+        io.DeltaTime = 1.0f/60.0f;              // set the time elapsed since the previous frame (in seconds)
+        io.DisplaySize.x = 1920.0f;             // set the current display width
+        io.DisplaySize.y = 1280.0f;             // set the current display height here
+        io.AddMousePosEvent(mouse_x, mouse_y);  // update mouse position
+        io.AddMouseButtonEvent(0, mouse_b[0]);  // update mouse button states
+        io.AddMouseButtonEvent(1, mouse_b[1]);  // update mouse button states
+
+        // Call NewFrame(), after this point you can use ImGui::* functions anytime
+        // (So you want to try calling NewFrame() as early as you can in your main loop to be able to use Dear ImGui everywhere)
+        ImGui::NewFrame();
+
+        // Most of your application code here
+        ImGui::Text("Hello, world!");
+        MyGameUpdate(); // may use any Dear ImGui functions, e.g. ImGui::Begin("My window"); ImGui::Text("Hello, world!"); ImGui::End();
+        MyGameRender(); // may use any Dear ImGui functions as well!
+
+        // Render dear imgui, swap buffers
+        // (You want to try calling EndFrame/Render as late as you can, to be able to use Dear ImGui in your own game rendering code)
+        ImGui::EndFrame();
+        ImGui::Render();
+        ImDrawData* draw_data = ImGui::GetDrawData();
+        MyImGuiRenderFunction(draw_data);
+        SwapBuffers();
+     }
+
+     // Shutdown
+     ImGui::DestroyContext();
+
+ To decide whether to dispatch mouse/keyboard inputs to Dear ImGui to the rest of your application,
+ you should read the 'io.WantCaptureMouse', 'io.WantCaptureKeyboard' and 'io.WantTextInput' flags!
+ Please read the FAQ and example applications for details about this!
+
+
+ HOW A SIMPLE RENDERING FUNCTION MAY LOOK LIKE
+ ---------------------------------------------
+ The backends in impl_impl_XXX.cpp files contain many working implementations of a rendering function.
+
+    void void MyImGuiRenderFunction(ImDrawData* draw_data)
+    {
+       // TODO: Setup render state: alpha-blending enabled, no face culling, no depth testing, scissor enabled
+       // TODO: Setup texture sampling state: sample with bilinear filtering (NOT point/nearest filtering). Use 'io.Fonts->Flags |= ImFontAtlasFlags_NoBakedLines;' to allow point/nearest filtering.
+       // TODO: Setup viewport covering draw_data->DisplayPos to draw_data->DisplayPos + draw_data->DisplaySize
+       // TODO: Setup orthographic projection matrix cover draw_data->DisplayPos to draw_data->DisplayPos + draw_data->DisplaySize
+       // TODO: Setup shader: vertex { float2 pos, float2 uv, u32 color }, fragment shader sample color from 1 texture, multiply by vertex color.
+       ImVec2 clip_off = draw_data->DisplayPos;
+       for (int n = 0; n < draw_data->CmdListsCount; n++)
+       {
+          const ImDrawList* cmd_list = draw_data->CmdLists[n];
+          const ImDrawVert* vtx_buffer = cmd_list->VtxBuffer.Data;  // vertex buffer generated by Dear ImGui
+          const ImDrawIdx* idx_buffer = cmd_list->IdxBuffer.Data;   // index buffer generated by Dear ImGui
+          for (int cmd_i = 0; cmd_i < cmd_list->CmdBuffer.Size; cmd_i++)
+          {
+             const ImDrawCmd* pcmd = &cmd_list->CmdBuffer[cmd_i];
+             if (pcmd->UserCallback)
+             {
+                 pcmd->UserCallback(cmd_list, pcmd);
+             }
+             else
+             {
+                 // Project scissor/clipping rectangles into framebuffer space
+                 ImVec2 clip_min(pcmd->ClipRect.x - clip_off.x, pcmd->ClipRect.y - clip_off.y);
+                 ImVec2 clip_max(pcmd->ClipRect.z - clip_off.x, pcmd->ClipRect.w - clip_off.y);
+                 if (clip_max.x <= clip_min.x || clip_max.y <= clip_min.y)
+                     continue;
+
+                 // We are using scissoring to clip some objects. All low-level graphics API should support it.
+                 // - If your engine doesn't support scissoring yet, you may ignore this at first. You will get some small glitches
+                 //   (some elements visible outside their bounds) but you can fix that once everything else works!
+                 // - Clipping coordinates are provided in imgui coordinates space:
+                 //   - For a given viewport, draw_data->DisplayPos == viewport->Pos and draw_data->DisplaySize == viewport->Size
+                 //   - In a single viewport application, draw_data->DisplayPos == (0,0) and draw_data->DisplaySize == io.DisplaySize, but always use GetMainViewport()->Pos/Size instead of hardcoding those values.
+                 //   - In the interest of supporting multi-viewport applications (see 'docking' branch on github),
+                 //     always subtract draw_data->DisplayPos from clipping bounds to convert them to your viewport space.
+                 // - Note that pcmd->ClipRect contains Min+Max bounds. Some graphics API may use Min+Max, other may use Min+Size (size being Max-Min)
+                 MyEngineSetScissor(clip_min.x, clip_min.y, clip_max.x, clip_max.y);
+
+                 // The texture for the draw call is specified by pcmd->GetTexID().
+                 // The vast majority of draw calls will use the Dear ImGui texture atlas, which value you have set yourself during initialization.
+                 MyEngineBindTexture((MyTexture*)pcmd->GetTexID());
+
+                 // Render 'pcmd->ElemCount/3' indexed triangles.
+                 // By default the indices ImDrawIdx are 16-bit, you can change them to 32-bit in imconfig.h if your engine doesn't support 16-bit indices.
+                 MyEngineDrawIndexedTriangles(pcmd->ElemCount, sizeof(ImDrawIdx) == 2 ? GL_UNSIGNED_SHORT : GL_UNSIGNED_INT, idx_buffer + pcmd->IdxOffset, vtx_buffer, pcmd->VtxOffset);
+             }
+          }
+       }
+    }
+
+
+ USING GAMEPAD/KEYBOARD NAVIGATION CONTROLS
+ ------------------------------------------
+ - The gamepad/keyboard navigation is fairly functional and keeps being improved.
+ - Gamepad support is particularly useful to use Dear ImGui on a console system (e.g. PS4, Switch, XB1) without a mouse!
+ - You can ask questions and report issues at https://github.com/ocornut/imgui/issues/787
+ - The initial focus was to support game controllers, but keyboard is becoming increasingly and decently usable.
+ - Keyboard:
+    - Application: Set io.ConfigFlags |= ImGuiConfigFlags_NavEnableKeyboard to enable.
+    - Internally: NewFrame() will automatically fill io.NavInputs[] based on backend's io.AddKeyEvent() calls.
+    - When keyboard navigation is active (io.NavActive + ImGuiConfigFlags_NavEnableKeyboard),
+      the io.WantCaptureKeyboard flag will be set. For more advanced uses, you may want to read from:
+       - io.NavActive: true when a window is focused and it doesn't have the ImGuiWindowFlags_NoNavInputs flag set.
+       - io.NavVisible: true when the navigation cursor is visible (and usually goes false when mouse is used).
+       - or query focus information with e.g. IsWindowFocused(ImGuiFocusedFlags_AnyWindow), IsItemFocused() etc. functions.
+      Please reach out if you think the game vs navigation input sharing could be improved.
+ - Gamepad:
+    - Application: Set io.ConfigFlags |= ImGuiConfigFlags_NavEnableGamepad to enable.
+    - Backend: Set io.BackendFlags |= ImGuiBackendFlags_HasGamepad + call io.AddKeyEvent/AddKeyAnalogEvent() with ImGuiKey_Gamepad_XXX keys.
+      For analog values (0.0f to 1.0f), backend is responsible to handling a dead-zone and rescaling inputs accordingly.
+      Backend code will probably need to transform your raw inputs (such as e.g. remapping your 0.2..0.9 raw input range to 0.0..1.0 imgui range, etc.).
+    - Internally: NewFrame() will automatically fill io.NavInputs[] based on backend's io.AddKeyEvent() + io.AddKeyAnalogEvent() calls.
+    - BEFORE 1.87, BACKENDS USED TO WRITE DIRECTLY TO io.NavInputs[]. This is going to be obsoleted in the future. Please call io functions instead!
+    - You can download PNG/PSD files depicting the gamepad controls for common controllers at: http://dearimgui.org/controls_sheets
+    - If you need to share inputs between your game and the Dear ImGui interface, the easiest approach is to go all-or-nothing,
+      with a buttons combo to toggle the target. Please reach out if you think the game vs navigation input sharing could be improved.
+ - Mouse:
+    - PS4/PS5 users: Consider emulating a mouse cursor with DualShock4 touch pad or a spare analog stick as a mouse-emulation fallback.
+    - Consoles/Tablet/Phone users: Consider using a Synergy 1.x server (on your PC) + uSynergy.c (on your console/tablet/phone app) to share your PC mouse/keyboard.
+    - On a TV/console system where readability may be lower or mouse inputs may be awkward, you may want to set the ImGuiConfigFlags_NavEnableSetMousePos flag.
+      Enabling ImGuiConfigFlags_NavEnableSetMousePos + ImGuiBackendFlags_HasSetMousePos instructs dear imgui to move your mouse cursor along with navigation movements.
+      When enabled, the NewFrame() function may alter 'io.MousePos' and set 'io.WantSetMousePos' to notify you that it wants the mouse cursor to be moved.
+      When that happens your backend NEEDS to move the OS or underlying mouse cursor on the next frame. Some of the backends in examples/ do that.
+      (If you set the NavEnableSetMousePos flag but don't honor 'io.WantSetMousePos' properly, imgui will misbehave as it will see your mouse moving back and forth!)
+      (In a setup when you may not have easy control over the mouse cursor, e.g. uSynergy.c doesn't expose moving remote mouse cursor, you may want
+       to set a boolean to ignore your other external mouse positions until the external source is moved again.)
+
+
+ API BREAKING CHANGES
+ ====================
+
+ Occasionally introducing changes that are breaking the API. We try to make the breakage minor and easy to fix.
+ Below is a change-log of API breaking changes only. If you are using one of the functions listed, expect to have to fix some code.
+ When you are not sure about an old symbol or function name, try using the Search/Find function of your IDE to look for comments or references in all imgui files.
+ You can read releases logs https://github.com/ocornut/imgui/releases for more details.
+
+ - 2022/06/15 (1.88) - renamed IMGUI_DISABLE_METRICS_WINDOW to IMGUI_DISABLE_DEBUG_TOOLS for correctness. kept support for old define (will obsolete).
+ - 2022/05/03 (1.88) - backends: osx: removed ImGui_ImplOSX_HandleEvent() from backend API in favor of backend automatically handling event capture. All ImGui_ImplOSX_HandleEvent() calls should be removed as they are now unnecessary.
+ - 2022/04/05 (1.88) - inputs: renamed ImGuiKeyModFlags to ImGuiModFlags. Kept inline redirection enums (will obsolete). This was never used in public API functions but technically present in imgui.h and ImGuiIO.
+ - 2022/01/20 (1.87) - inputs: reworded gamepad IO.
+                        - Backend writing to io.NavInputs[]            -> backend should call io.AddKeyEvent()/io.AddKeyAnalogEvent() with ImGuiKey_GamepadXXX values.
+ - 2022/01/19 (1.87) - sliders, drags: removed support for legacy arithmetic operators (+,+-,*,/) when inputing text. This doesn't break any api/code but a feature that used to be accessible by end-users (which seemingly no one used).
+ - 2022/01/17 (1.87) - inputs: reworked mouse IO.
+                        - Backend writing to io.MousePos               -> backend should call io.AddMousePosEvent()
+                        - Backend writing to io.MouseDown[]            -> backend should call io.AddMouseButtonEvent()
+                        - Backend writing to io.MouseWheel             -> backend should call io.AddMouseWheelEvent()
+                        - Backend writing to io.MouseHoveredViewport   -> backend should call io.AddMouseViewportEvent() [Docking branch w/ multi-viewports only]
+                       note: for all calls to IO new functions, the Dear ImGui context should be bound/current.
+                       read https://github.com/ocornut/imgui/issues/4921 for details.
+ - 2022/01/10 (1.87) - inputs: reworked keyboard IO. Removed io.KeyMap[], io.KeysDown[] in favor of calling io.AddKeyEvent(). Removed GetKeyIndex(), now unecessary. All IsKeyXXX() functions now take ImGuiKey values. All features are still functional until IMGUI_DISABLE_OBSOLETE_KEYIO is defined. Read Changelog and Release Notes for details.
+                        - IsKeyPressed(MY_NATIVE_KEY_XXX)              -> use IsKeyPressed(ImGuiKey_XXX)
+                        - IsKeyPressed(GetKeyIndex(ImGuiKey_XXX))      -> use IsKeyPressed(ImGuiKey_XXX)
+                        - Backend writing to io.KeyMap[],io.KeysDown[] -> backend should call io.AddKeyEvent() (+ call io.SetKeyEventNativeData() if you want legacy user code to stil function with legacy key codes).
+                        - Backend writing to io.KeyCtrl, io.KeyShift.. -> backend should call io.AddKeyEvent() with ImGuiKey_ModXXX values. *IF YOU PULLED CODE BETWEEN 2021/01/10 and 2021/01/27: We used to have a io.AddKeyModsEvent() function which was now replaced by io.AddKeyEvent() with ImGuiKey_ModXXX values.*
+                     - one case won't work with backward compatibility: if your custom backend used ImGuiKey as mock native indices (e.g. "io.KeyMap[ImGuiKey_A] = ImGuiKey_A") because those values are now larger than the legacy KeyDown[] array. Will assert.
+                     - inputs: added ImGuiKey_ModCtrl/ImGuiKey_ModShift/ImGuiKey_ModAlt/ImGuiKey_ModSuper values to submit keyboard modifiers using io.AddKeyEvent(), instead of writing directly to io.KeyCtrl, io.KeyShift, io.KeyAlt, io.KeySuper.
+ - 2022/01/05 (1.87) - inputs: renamed ImGuiKey_KeyPadEnter to ImGuiKey_KeypadEnter to align with new symbols. Kept redirection enum.
+ - 2022/01/05 (1.87) - removed io.ImeSetInputScreenPosFn() in favor of more flexible io.SetPlatformImeDataFn(). Removed 'void* io.ImeWindowHandle' in favor of writing to 'void* ImGuiViewport::PlatformHandleRaw'.
+ - 2022/01/01 (1.87) - commented out redirecting functions/enums names that were marked obsolete in 1.69, 1.70, 1.71, 1.72 (March-July 2019)
+                        - ImGui::SetNextTreeNodeOpen()        -> use ImGui::SetNextItemOpen()
+                        - ImGui::GetContentRegionAvailWidth() -> use ImGui::GetContentRegionAvail().x
+                        - ImGui::TreeAdvanceToLabelPos()      -> use ImGui::SetCursorPosX(ImGui::GetCursorPosX() + ImGui::GetTreeNodeToLabelSpacing());
+                        - ImFontAtlas::CustomRect             -> use ImFontAtlasCustomRect
+                        - ImGuiColorEditFlags_RGB/HSV/HEX     -> use ImGuiColorEditFlags_DisplayRGB/HSV/Hex
+ - 2021/12/20 (1.86) - backends: removed obsolete Marmalade backend (imgui_impl_marmalade.cpp) + example. Find last supported version at https://github.com/ocornut/imgui/wiki/Bindings
+ - 2021/11/04 (1.86) - removed CalcListClipping() function. Prefer using ImGuiListClipper which can return non-contiguous ranges. Please open an issue if you think you really need this function.
+ - 2021/08/23 (1.85) - removed GetWindowContentRegionWidth() function. keep inline redirection helper. can use 'GetWindowContentRegionMax().x - GetWindowContentRegionMin().x' instead for generally 'GetContentRegionAvail().x' is more useful.
+ - 2021/07/26 (1.84) - commented out redirecting functions/enums names that were marked obsolete in 1.67 and 1.69 (March 2019):
+                        - ImGui::GetOverlayDrawList() -> use ImGui::GetForegroundDrawList()
+                        - ImFont::GlyphRangesBuilder  -> use ImFontGlyphRangesBuilder
+ - 2021/05/19 (1.83) - backends: obsoleted direct access to ImDrawCmd::TextureId in favor of calling ImDrawCmd::GetTexID().
+                        - if you are using official backends from the source tree: you have nothing to do.
+                        - if you have copied old backend code or using your own: change access to draw_cmd->TextureId to draw_cmd->GetTexID().
+ - 2021/03/12 (1.82) - upgraded ImDrawList::AddRect(), AddRectFilled(), PathRect() to use ImDrawFlags instead of ImDrawCornersFlags.
+                        - ImDrawCornerFlags_TopLeft  -> use ImDrawFlags_RoundCornersTopLeft
+                        - ImDrawCornerFlags_BotRight -> use ImDrawFlags_RoundCornersBottomRight
+                        - ImDrawCornerFlags_None     -> use ImDrawFlags_RoundCornersNone etc.
+                       flags now sanely defaults to 0 instead of 0x0F, consistent with all other flags in the API.
+                       breaking: the default with rounding > 0.0f is now "round all corners" vs old implicit "round no corners":
+                        - rounding == 0.0f + flags == 0 --> meant no rounding  --> unchanged (common use)
+                        - rounding  > 0.0f + flags != 0 --> meant rounding     --> unchanged (common use)
+                        - rounding == 0.0f + flags != 0 --> meant no rounding  --> unchanged (unlikely use)
+                        - rounding  > 0.0f + flags == 0 --> meant no rounding  --> BREAKING (unlikely use): will now round all corners --> use ImDrawFlags_RoundCornersNone or rounding == 0.0f.
+                       this ONLY matters for hard coded use of 0 + rounding > 0.0f. Use of named ImDrawFlags_RoundCornersNone (new) or ImDrawCornerFlags_None (old) are ok.
+                       the old ImDrawCornersFlags used awkward default values of ~0 or 0xF (4 lower bits set) to signify "round all corners" and we sometimes encouraged using them as shortcuts.
+                       legacy path still support use of hard coded ~0 or any value from 0x1 or 0xF. They will behave the same with legacy paths enabled (will assert otherwise).
+ - 2021/03/11 (1.82) - removed redirecting functions/enums names that were marked obsolete in 1.66 (September 2018):
+                        - ImGui::SetScrollHere()              -> use ImGui::SetScrollHereY()
+ - 2021/03/11 (1.82) - clarified that ImDrawList::PathArcTo(), ImDrawList::PathArcToFast() won't render with radius < 0.0f. Previously it sorts of accidentally worked but would generally lead to counter-clockwise paths and have an effect on anti-aliasing.
+ - 2021/03/10 (1.82) - upgraded ImDrawList::AddPolyline() and PathStroke() "bool closed" parameter to "ImDrawFlags flags". The matching ImDrawFlags_Closed value is guaranteed to always stay == 1 in the future.
+ - 2021/02/22 (1.82) - (*undone in 1.84*) win32+mingw: Re-enabled IME functions by default even under MinGW. In July 2016, issue #738 had me incorrectly disable those default functions for MinGW. MinGW users should: either link with -limm32, either set their imconfig file  with '#define IMGUI_DISABLE_WIN32_DEFAULT_IME_FUNCTIONS'.
+ - 2021/02/17 (1.82) - renamed rarely used style.CircleSegmentMaxError (old default = 1.60f) to style.CircleTessellationMaxError (new default = 0.30f) as the meaning of the value changed.
+ - 2021/02/03 (1.81) - renamed ListBoxHeader(const char* label, ImVec2 size) to BeginListBox(). Kept inline redirection function (will obsolete).
+                     - removed ListBoxHeader(const char* label, int items_count, int height_in_items = -1) in favor of specifying size. Kept inline redirection function (will obsolete).
+                     - renamed ListBoxFooter() to EndListBox(). Kept inline redirection function (will obsolete).
+ - 2021/01/26 (1.81) - removed ImGuiFreeType::BuildFontAtlas(). Kept inline redirection function. Prefer using '#define IMGUI_ENABLE_FREETYPE', but there's a runtime selection path available too. The shared extra flags parameters (very rarely used) are now stored in ImFontAtlas::FontBuilderFlags.
+                     - renamed ImFontConfig::RasterizerFlags (used by FreeType) to ImFontConfig::FontBuilderFlags.
+                     - renamed ImGuiFreeType::XXX flags to ImGuiFreeTypeBuilderFlags_XXX for consistency with other API.
+ - 2020/10/12 (1.80) - removed redirecting functions/enums that were marked obsolete in 1.63 (August 2018):
+                        - ImGui::IsItemDeactivatedAfterChange() -> use ImGui::IsItemDeactivatedAfterEdit().
+                        - ImGuiCol_ModalWindowDarkening       -> use ImGuiCol_ModalWindowDimBg
+                        - ImGuiInputTextCallback              -> use ImGuiTextEditCallback
+                        - ImGuiInputTextCallbackData          -> use ImGuiTextEditCallbackData
+ - 2020/12/21 (1.80) - renamed ImDrawList::AddBezierCurve() to AddBezierCubic(), and PathBezierCurveTo() to PathBezierCubicCurveTo(). Kept inline redirection function (will obsolete).
+ - 2020/12/04 (1.80) - added imgui_tables.cpp file! Manually constructed project files will need the new file added!
+ - 2020/11/18 (1.80) - renamed undocumented/internals ImGuiColumnsFlags_* to ImGuiOldColumnFlags_* in prevision of incoming Tables API.
+ - 2020/11/03 (1.80) - renamed io.ConfigWindowsMemoryCompactTimer to io.ConfigMemoryCompactTimer as the feature will apply to other data structures
+ - 2020/10/14 (1.80) - backends: moved all backends files (imgui_impl_XXXX.cpp, imgui_impl_XXXX.h) from examples/ to backends/.
+ - 2020/10/12 (1.80) - removed redirecting functions/enums that were marked obsolete in 1.60 (April 2018):
+                        - io.RenderDrawListsFn pointer        -> use ImGui::GetDrawData() value and call the render function of your backend
+                        - ImGui::IsAnyWindowFocused()         -> use ImGui::IsWindowFocused(ImGuiFocusedFlags_AnyWindow)
+                        - ImGui::IsAnyWindowHovered()         -> use ImGui::IsWindowHovered(ImGuiHoveredFlags_AnyWindow)
+                        - ImGuiStyleVar_Count_                -> use ImGuiStyleVar_COUNT
+                        - ImGuiMouseCursor_Count_             -> use ImGuiMouseCursor_COUNT
+                      - removed redirecting functions names that were marked obsolete in 1.61 (May 2018):
+                        - InputFloat (... int decimal_precision ...) -> use InputFloat (... const char* format ...) with format = "%.Xf" where X is your value for decimal_precision.
+                        - same for InputFloat2()/InputFloat3()/InputFloat4() variants taking a `int decimal_precision` parameter.
+ - 2020/10/05 (1.79) - removed ImGuiListClipper: Renamed constructor parameters which created an ambiguous alternative to using the ImGuiListClipper::Begin() function, with misleading edge cases (note: imgui_memory_editor <0.40 from imgui_club/ used this old clipper API. Update your copy if needed).
+ - 2020/09/25 (1.79) - renamed ImGuiSliderFlags_ClampOnInput to ImGuiSliderFlags_AlwaysClamp. Kept redirection enum (will obsolete sooner because previous name was added recently).
+ - 2020/09/25 (1.79) - renamed style.TabMinWidthForUnselectedCloseButton to style.TabMinWidthForCloseButton.
+ - 2020/09/21 (1.79) - renamed OpenPopupContextItem() back to OpenPopupOnItemClick(), reverting the change from 1.77. For varieties of reason this is more self-explanatory.
+ - 2020/09/21 (1.79) - removed return value from OpenPopupOnItemClick() - returned true on mouse release on an item - because it is inconsistent with other popup APIs and makes others misleading. It's also and unnecessary: you can use IsWindowAppearing() after BeginPopup() for a similar result.
+ - 2020/09/17 (1.79) - removed ImFont::DisplayOffset in favor of ImFontConfig::GlyphOffset. DisplayOffset was applied after scaling and not very meaningful/useful outside of being needed by the default ProggyClean font. If you scaled this value after calling AddFontDefault(), this is now done automatically. It was also getting in the way of better font scaling, so let's get rid of it now!
+ - 2020/08/17 (1.78) - obsoleted use of the trailing 'float power=1.0f' parameter for DragFloat(), DragFloat2(), DragFloat3(), DragFloat4(), DragFloatRange2(), DragScalar(), DragScalarN(), SliderFloat(), SliderFloat2(), SliderFloat3(), SliderFloat4(), SliderScalar(), SliderScalarN(), VSliderFloat() and VSliderScalar().
+                       replaced the 'float power=1.0f' argument with integer-based flags defaulting to 0 (as with all our flags).
+                       worked out a backward-compatibility scheme so hopefully most C++ codebase should not be affected. in short, when calling those functions:
+                       - if you omitted the 'power' parameter (likely!), you are not affected.
+                       - if you set the 'power' parameter to 1.0f (same as previous default value): 1/ your compiler may warn on float>int conversion, 2/ everything else will work. 3/ you can replace the 1.0f value with 0 to fix the warning, and be technically correct.
+                       - if you set the 'power' parameter to >1.0f (to enable non-linear editing): 1/ your compiler may warn on float>int conversion, 2/ code will assert at runtime, 3/ in case asserts are disabled, the code will not crash and enable the _Logarithmic flag. 4/ you can replace the >1.0f value with ImGuiSliderFlags_Logarithmic to fix the warning/assert and get a _similar_ effect as previous uses of power >1.0f.
+                       see https://github.com/ocornut/imgui/issues/3361 for all details.
+                       kept inline redirection functions (will obsolete) apart for: DragFloatRange2(), VSliderFloat(), VSliderScalar(). For those three the 'float power=1.0f' version was removed directly as they were most unlikely ever used.
+                       for shared code, you can version check at compile-time with `#if IMGUI_VERSION_NUM >= 17704`.
+                     - obsoleted use of v_min > v_max in DragInt, DragFloat, DragScalar to lock edits (introduced in 1.73, was not demoed nor documented very), will be replaced by a more generic ReadOnly feature. You may use the ImGuiSliderFlags_ReadOnly internal flag in the meantime.
+ - 2020/06/23 (1.77) - removed BeginPopupContextWindow(const char*, int mouse_button, bool also_over_items) in favor of BeginPopupContextWindow(const char*, ImGuiPopupFlags flags) with ImGuiPopupFlags_NoOverItems.
+ - 2020/06/15 (1.77) - renamed OpenPopupOnItemClick() to OpenPopupContextItem(). Kept inline redirection function (will obsolete). [NOTE: THIS WAS REVERTED IN 1.79]
+ - 2020/06/15 (1.77) - removed CalcItemRectClosestPoint() entry point which was made obsolete and asserting in December 2017.
+ - 2020/04/23 (1.77) - removed unnecessary ID (first arg) of ImFontAtlas::AddCustomRectRegular().
+ - 2020/01/22 (1.75) - ImDrawList::AddCircle()/AddCircleFilled() functions don't accept negative radius any more.
+ - 2019/12/17 (1.75) - [undid this change in 1.76] made Columns() limited to 64 columns by asserting above that limit. While the current code technically supports it, future code may not so we're putting the restriction ahead.
+ - 2019/12/13 (1.75) - [imgui_internal.h] changed ImRect() default constructor initializes all fields to 0.0f instead of (FLT_MAX,FLT_MAX,-FLT_MAX,-FLT_MAX). If you used ImRect::Add() to create bounding boxes by adding multiple points into it, you may need to fix your initial value.
+ - 2019/12/08 (1.75) - removed redirecting functions/enums that were marked obsolete in 1.53 (December 2017):
+                       - ShowTestWindow()                    -> use ShowDemoWindow()
+                       - IsRootWindowFocused()               -> use IsWindowFocused(ImGuiFocusedFlags_RootWindow)
+                       - IsRootWindowOrAnyChildFocused()     -> use IsWindowFocused(ImGuiFocusedFlags_RootAndChildWindows)
+                       - SetNextWindowContentWidth(w)        -> use SetNextWindowContentSize(ImVec2(w, 0.0f)
+                       - GetItemsLineHeightWithSpacing()     -> use GetFrameHeightWithSpacing()
+                       - ImGuiCol_ChildWindowBg              -> use ImGuiCol_ChildBg
+                       - ImGuiStyleVar_ChildWindowRounding   -> use ImGuiStyleVar_ChildRounding
+                       - ImGuiTreeNodeFlags_AllowOverlapMode -> use ImGuiTreeNodeFlags_AllowItemOverlap
+                       - IMGUI_DISABLE_TEST_WINDOWS          -> use IMGUI_DISABLE_DEMO_WINDOWS
+ - 2019/12/08 (1.75) - obsoleted calling ImDrawList::PrimReserve() with a negative count (which was vaguely documented and rarely if ever used). Instead, we added an explicit PrimUnreserve() API.
+ - 2019/12/06 (1.75) - removed implicit default parameter to IsMouseDragging(int button = 0) to be consistent with other mouse functions (none of the other functions have it).
+ - 2019/11/21 (1.74) - ImFontAtlas::AddCustomRectRegular() now requires an ID larger than 0x110000 (instead of 0x10000) to conform with supporting Unicode planes 1-16 in a future update. ID below 0x110000 will now assert.
+ - 2019/11/19 (1.74) - renamed IMGUI_DISABLE_FORMAT_STRING_FUNCTIONS to IMGUI_DISABLE_DEFAULT_FORMAT_FUNCTIONS for consistency.
+ - 2019/11/19 (1.74) - renamed IMGUI_DISABLE_MATH_FUNCTIONS to IMGUI_DISABLE_DEFAULT_MATH_FUNCTIONS for consistency.
+ - 2019/10/22 (1.74) - removed redirecting functions/enums that were marked obsolete in 1.52 (October 2017):
+                       - Begin() [old 5 args version]        -> use Begin() [3 args], use SetNextWindowSize() SetNextWindowBgAlpha() if needed
+                       - IsRootWindowOrAnyChildHovered()     -> use IsWindowHovered(ImGuiHoveredFlags_RootAndChildWindows)
+                       - AlignFirstTextHeightToWidgets()     -> use AlignTextToFramePadding()
+                       - SetNextWindowPosCenter()            -> use SetNextWindowPos() with a pivot of (0.5f, 0.5f)
+                       - ImFont::Glyph                       -> use ImFontGlyph
+ - 2019/10/14 (1.74) - inputs: Fixed a miscalculation in the keyboard/mouse "typematic" repeat delay/rate calculation, used by keys and e.g. repeating mouse buttons as well as the GetKeyPressedAmount() function.
+                       if you were using a non-default value for io.KeyRepeatRate (previous default was 0.250), you can add +io.KeyRepeatDelay to it to compensate for the fix.
+                       The function was triggering on: 0.0 and (delay+rate*N) where (N>=1). Fixed formula responds to (N>=0). Effectively it made io.KeyRepeatRate behave like it was set to (io.KeyRepeatRate + io.KeyRepeatDelay).
+                       If you never altered io.KeyRepeatRate nor used GetKeyPressedAmount() this won't affect you.
+ - 2019/07/15 (1.72) - removed TreeAdvanceToLabelPos() which is rarely used and only does SetCursorPosX(GetCursorPosX() + GetTreeNodeToLabelSpacing()). Kept redirection function (will obsolete).
+ - 2019/07/12 (1.72) - renamed ImFontAtlas::CustomRect to ImFontAtlasCustomRect. Kept redirection typedef (will obsolete).
+ - 2019/06/14 (1.72) - removed redirecting functions/enums names that were marked obsolete in 1.51 (June 2017): ImGuiCol_Column*, ImGuiSetCond_*, IsItemHoveredRect(), IsPosHoveringAnyWindow(), IsMouseHoveringAnyWindow(), IsMouseHoveringWindow(), IMGUI_ONCE_UPON_A_FRAME. Grep this log for details and new names, or see how they were implemented until 1.71.
+ - 2019/06/07 (1.71) - rendering of child window outer decorations (bg color, border, scrollbars) is now performed as part of the parent window. If you have
+                       overlapping child windows in a same parent, and relied on their relative z-order to be mapped to their submission order, this will affect your rendering.
+                       This optimization is disabled if the parent window has no visual output, because it appears to be the most common situation leading to the creation of overlapping child windows.
+                       Please reach out if you are affected.
+ - 2019/05/13 (1.71) - renamed SetNextTreeNodeOpen() to SetNextItemOpen(). Kept inline redirection function (will obsolete).
+ - 2019/05/11 (1.71) - changed io.AddInputCharacter(unsigned short c) signature to io.AddInputCharacter(unsigned int c).
+ - 2019/04/29 (1.70) - improved ImDrawList thick strokes (>1.0f) preserving correct thickness up to 90 degrees angles (e.g. rectangles). If you have custom rendering using thick lines, they will appear thicker now.
+ - 2019/04/29 (1.70) - removed GetContentRegionAvailWidth(), use GetContentRegionAvail().x instead. Kept inline redirection function (will obsolete).
+ - 2019/03/04 (1.69) - renamed GetOverlayDrawList() to GetForegroundDrawList(). Kept redirection function (will obsolete).
+ - 2019/02/26 (1.69) - renamed ImGuiColorEditFlags_RGB/ImGuiColorEditFlags_HSV/ImGuiColorEditFlags_HEX to ImGuiColorEditFlags_DisplayRGB/ImGuiColorEditFlags_DisplayHSV/ImGuiColorEditFlags_DisplayHex. Kept redirection enums (will obsolete).
+ - 2019/02/14 (1.68) - made it illegal/assert when io.DisplayTime == 0.0f (with an exception for the first frame). If for some reason your time step calculation gives you a zero value, replace it with an arbitrarily small value!
+ - 2019/02/01 (1.68) - removed io.DisplayVisibleMin/DisplayVisibleMax (which were marked obsolete and removed from viewport/docking branch already).
+ - 2019/01/06 (1.67) - renamed io.InputCharacters[], marked internal as was always intended. Please don't access directly, and use AddInputCharacter() instead!
+ - 2019/01/06 (1.67) - renamed ImFontAtlas::GlyphRangesBuilder to ImFontGlyphRangesBuilder. Kept redirection typedef (will obsolete).
+ - 2018/12/20 (1.67) - made it illegal to call Begin("") with an empty string. This somehow half-worked before but had various undesirable side-effects.
+ - 2018/12/10 (1.67) - renamed io.ConfigResizeWindowsFromEdges to io.ConfigWindowsResizeFromEdges as we are doing a large pass on configuration flags.
+ - 2018/10/12 (1.66) - renamed misc/stl/imgui_stl.* to misc/cpp/imgui_stdlib.* in prevision for other C++ helper files.
+ - 2018/09/28 (1.66) - renamed SetScrollHere() to SetScrollHereY(). Kept redirection function (will obsolete).
+ - 2018/09/06 (1.65) - renamed stb_truetype.h to imstb_truetype.h, stb_textedit.h to imstb_textedit.h, and stb_rect_pack.h to imstb_rectpack.h.
+                       If you were conveniently using the imgui copy of those STB headers in your project you will have to update your include paths.
+ - 2018/09/05 (1.65) - renamed io.OptCursorBlink/io.ConfigCursorBlink to io.ConfigInputTextCursorBlink. (#1427)
+ - 2018/08/31 (1.64) - added imgui_widgets.cpp file, extracted and moved widgets code out of imgui.cpp into imgui_widgets.cpp. Re-ordered some of the code remaining in imgui.cpp.
+                       NONE OF THE FUNCTIONS HAVE CHANGED. THE CODE IS SEMANTICALLY 100% IDENTICAL, BUT _EVERY_ FUNCTION HAS BEEN MOVED.
+                       Because of this, any local modifications to imgui.cpp will likely conflict when you update. Read docs/CHANGELOG.txt for suggestions.
+ - 2018/08/22 (1.63) - renamed IsItemDeactivatedAfterChange() to IsItemDeactivatedAfterEdit() for consistency with new IsItemEdited() API. Kept redirection function (will obsolete soonish as IsItemDeactivatedAfterChange() is very recent).
+ - 2018/08/21 (1.63) - renamed ImGuiTextEditCallback to ImGuiInputTextCallback, ImGuiTextEditCallbackData to ImGuiInputTextCallbackData for consistency. Kept redirection types (will obsolete).
+ - 2018/08/21 (1.63) - removed ImGuiInputTextCallbackData::ReadOnly since it is a duplication of (ImGuiInputTextCallbackData::Flags & ImGuiInputTextFlags_ReadOnly).
+ - 2018/08/01 (1.63) - removed per-window ImGuiWindowFlags_ResizeFromAnySide beta flag in favor of a global io.ConfigResizeWindowsFromEdges [update 1.67 renamed to ConfigWindowsResizeFromEdges] to enable the feature.
+ - 2018/08/01 (1.63) - renamed io.OptCursorBlink to io.ConfigCursorBlink [-> io.ConfigInputTextCursorBlink in 1.65], io.OptMacOSXBehaviors to ConfigMacOSXBehaviors for consistency.
+ - 2018/07/22 (1.63) - changed ImGui::GetTime() return value from float to double to avoid accumulating floating point imprecisions over time.
+ - 2018/07/08 (1.63) - style: renamed ImGuiCol_ModalWindowDarkening to ImGuiCol_ModalWindowDimBg for consistency with other features. Kept redirection enum (will obsolete).
+ - 2018/06/08 (1.62) - examples: the imgui_impl_XXX files have been split to separate platform (Win32, GLFW, SDL2, etc.) from renderer (DX11, OpenGL, Vulkan,  etc.).
+                       old backends will still work as is, however prefer using the separated backends as they will be updated to support multi-viewports.
+                       when adopting new backends follow the main.cpp code of your preferred examples/ folder to know which functions to call.
+                       in particular, note that old backends called ImGui::NewFrame() at the end of their ImGui_ImplXXXX_NewFrame() function.
+ - 2018/06/06 (1.62) - renamed GetGlyphRangesChinese() to GetGlyphRangesChineseFull() to distinguish other variants and discourage using the full set.
+ - 2018/06/06 (1.62) - TreeNodeEx()/TreeNodeBehavior(): the ImGuiTreeNodeFlags_CollapsingHeader helper now include the ImGuiTreeNodeFlags_NoTreePushOnOpen flag. See Changelog for details.
+ - 2018/05/03 (1.61) - DragInt(): the default compile-time format string has been changed from "%.0f" to "%d", as we are not using integers internally any more.
+                       If you used DragInt() with custom format strings, make sure you change them to use %d or an integer-compatible format.
+                       To honor backward-compatibility, the DragInt() code will currently parse and modify format strings to replace %*f with %d, giving time to users to upgrade their code.
+                       If you have IMGUI_DISABLE_OBSOLETE_FUNCTIONS enabled, the code will instead assert! You may run a reg-exp search on your codebase for e.g. "DragInt.*%f" to help you find them.
+ - 2018/04/28 (1.61) - obsoleted InputFloat() functions taking an optional "int decimal_precision" in favor of an equivalent and more flexible "const char* format",
+                       consistent with other functions. Kept redirection functions (will obsolete).
+ - 2018/04/09 (1.61) - IM_DELETE() helper function added in 1.60 doesn't clear the input _pointer_ reference, more consistent with expectation and allows passing r-value.
+ - 2018/03/20 (1.60) - renamed io.WantMoveMouse to io.WantSetMousePos for consistency and ease of understanding (was added in 1.52, _not_ used by core and only honored by some backend ahead of merging the Nav branch).
+ - 2018/03/12 (1.60) - removed ImGuiCol_CloseButton, ImGuiCol_CloseButtonActive, ImGuiCol_CloseButtonHovered as the closing cross uses regular button colors now.
+ - 2018/03/08 (1.60) - changed ImFont::DisplayOffset.y to default to 0 instead of +1. Fixed rounding of Ascent/Descent to match TrueType renderer. If you were adding or subtracting to ImFont::DisplayOffset check if your fonts are correctly aligned vertically.
+ - 2018/03/03 (1.60) - renamed ImGuiStyleVar_Count_ to ImGuiStyleVar_COUNT and ImGuiMouseCursor_Count_ to ImGuiMouseCursor_COUNT for consistency with other public enums.
+ - 2018/02/18 (1.60) - BeginDragDropSource(): temporarily removed the optional mouse_button=0 parameter because it is not really usable in many situations at the moment.
+ - 2018/02/16 (1.60) - obsoleted the io.RenderDrawListsFn callback, you can call your graphics engine render function after ImGui::Render(). Use ImGui::GetDrawData() to retrieve the ImDrawData* to display.
+ - 2018/02/07 (1.60) - reorganized context handling to be more explicit,
+                       - YOU NOW NEED TO CALL ImGui::CreateContext() AT THE BEGINNING OF YOUR APP, AND CALL ImGui::DestroyContext() AT THE END.
+                       - removed Shutdown() function, as DestroyContext() serve this purpose.
+                       - you may pass a ImFontAtlas* pointer to CreateContext() to share a font atlas between contexts. Otherwise CreateContext() will create its own font atlas instance.
+                       - removed allocator parameters from CreateContext(), they are now setup with SetAllocatorFunctions(), and shared by all contexts.
+                       - removed the default global context and font atlas instance, which were confusing for users of DLL reloading and users of multiple contexts.
+ - 2018/01/31 (1.60) - moved sample TTF files from extra_fonts/ to misc/fonts/. If you loaded files directly from the imgui repo you may need to update your paths.
+ - 2018/01/11 (1.60) - obsoleted IsAnyWindowHovered() in favor of IsWindowHovered(ImGuiHoveredFlags_AnyWindow). Kept redirection function (will obsolete).
+ - 2018/01/11 (1.60) - obsoleted IsAnyWindowFocused() in favor of IsWindowFocused(ImGuiFocusedFlags_AnyWindow). Kept redirection function (will obsolete).
+ - 2018/01/03 (1.60) - renamed ImGuiSizeConstraintCallback to ImGuiSizeCallback, ImGuiSizeConstraintCallbackData to ImGuiSizeCallbackData.
+ - 2017/12/29 (1.60) - removed CalcItemRectClosestPoint() which was weird and not really used by anyone except demo code. If you need it it's easy to replicate on your side.
+ - 2017/12/24 (1.53) - renamed the emblematic ShowTestWindow() function to ShowDemoWindow(). Kept redirection function (will obsolete).
+ - 2017/12/21 (1.53) - ImDrawList: renamed style.AntiAliasedShapes to style.AntiAliasedFill for consistency and as a way to explicitly break code that manipulate those flag at runtime. You can now manipulate ImDrawList::Flags
+ - 2017/12/21 (1.53) - ImDrawList: removed 'bool anti_aliased = true' final parameter of ImDrawList::AddPolyline() and ImDrawList::AddConvexPolyFilled(). Prefer manipulating ImDrawList::Flags if you need to toggle them during the frame.
+ - 2017/12/14 (1.53) - using the ImGuiWindowFlags_NoScrollWithMouse flag on a child window forwards the mouse wheel event to the parent window, unless either ImGuiWindowFlags_NoInputs or ImGuiWindowFlags_NoScrollbar are also set.
+ - 2017/12/13 (1.53) - renamed GetItemsLineHeightWithSpacing() to GetFrameHeightWithSpacing(). Kept redirection function (will obsolete).
+ - 2017/12/13 (1.53) - obsoleted IsRootWindowFocused() in favor of using IsWindowFocused(ImGuiFocusedFlags_RootWindow). Kept redirection function (will obsolete).
+                     - obsoleted IsRootWindowOrAnyChildFocused() in favor of using IsWindowFocused(ImGuiFocusedFlags_RootAndChildWindows). Kept redirection function (will obsolete).
+ - 2017/12/12 (1.53) - renamed ImGuiTreeNodeFlags_AllowOverlapMode to ImGuiTreeNodeFlags_AllowItemOverlap. Kept redirection enum (will obsolete).
+ - 2017/12/10 (1.53) - removed SetNextWindowContentWidth(), prefer using SetNextWindowContentSize(). Kept redirection function (will obsolete).
+ - 2017/11/27 (1.53) - renamed ImGuiTextBuffer::append() helper to appendf(), appendv() to appendfv(). If you copied the 'Log' demo in your code, it uses appendv() so that needs to be renamed.
+ - 2017/11/18 (1.53) - Style, Begin: removed ImGuiWindowFlags_ShowBorders window flag. Borders are now fully set up in the ImGuiStyle structure (see e.g. style.FrameBorderSize, style.WindowBorderSize). Use ImGui::ShowStyleEditor() to look them up.
+                       Please note that the style system will keep evolving (hopefully stabilizing in Q1 2018), and so custom styles will probably subtly break over time. It is recommended you use the StyleColorsClassic(), StyleColorsDark(), StyleColorsLight() functions.
+ - 2017/11/18 (1.53) - Style: removed ImGuiCol_ComboBg in favor of combo boxes using ImGuiCol_PopupBg for consistency.
+ - 2017/11/18 (1.53) - Style: renamed ImGuiCol_ChildWindowBg to ImGuiCol_ChildBg.
+ - 2017/11/18 (1.53) - Style: renamed style.ChildWindowRounding to style.ChildRounding, ImGuiStyleVar_ChildWindowRounding to ImGuiStyleVar_ChildRounding.
+ - 2017/11/02 (1.53) - obsoleted IsRootWindowOrAnyChildHovered() in favor of using IsWindowHovered(ImGuiHoveredFlags_RootAndChildWindows);
+ - 2017/10/24 (1.52) - renamed IMGUI_DISABLE_WIN32_DEFAULT_CLIPBOARD_FUNCS/IMGUI_DISABLE_WIN32_DEFAULT_IME_FUNCS to IMGUI_DISABLE_WIN32_DEFAULT_CLIPBOARD_FUNCTIONS/IMGUI_DISABLE_WIN32_DEFAULT_IME_FUNCTIONS for consistency.
+ - 2017/10/20 (1.52) - changed IsWindowHovered() default parameters behavior to return false if an item is active in another window (e.g. click-dragging item from another window to this window). You can use the newly introduced IsWindowHovered() flags to requests this specific behavior if you need it.
+ - 2017/10/20 (1.52) - marked IsItemHoveredRect()/IsMouseHoveringWindow() as obsolete, in favor of using the newly introduced flags for IsItemHovered() and IsWindowHovered(). See https://github.com/ocornut/imgui/issues/1382 for details.
+                       removed the IsItemRectHovered()/IsWindowRectHovered() names introduced in 1.51 since they were merely more consistent names for the two functions we are now obsoleting.
+                         IsItemHoveredRect()        --> IsItemHovered(ImGuiHoveredFlags_RectOnly)
+                         IsMouseHoveringAnyWindow() --> IsWindowHovered(ImGuiHoveredFlags_AnyWindow)
+                         IsMouseHoveringWindow()    --> IsWindowHovered(ImGuiHoveredFlags_AllowWhenBlockedByPopup | ImGuiHoveredFlags_AllowWhenBlockedByActiveItem) [weird, old behavior]
+ - 2017/10/17 (1.52) - marked the old 5-parameters version of Begin() as obsolete (still available). Use SetNextWindowSize()+Begin() instead!
+ - 2017/10/11 (1.52) - renamed AlignFirstTextHeightToWidgets() to AlignTextToFramePadding(). Kept inline redirection function (will obsolete).
+ - 2017/09/26 (1.52) - renamed ImFont::Glyph to ImFontGlyph. Kept redirection typedef (will obsolete).
+ - 2017/09/25 (1.52) - removed SetNextWindowPosCenter() because SetNextWindowPos() now has the optional pivot information to do the same and more. Kept redirection function (will obsolete).
+ - 2017/08/25 (1.52) - io.MousePos needs to be set to ImVec2(-FLT_MAX,-FLT_MAX) when mouse is unavailable/missing. Previously ImVec2(-1,-1) was enough but we now accept negative mouse coordinates. In your backend if you need to support unavailable mouse, make sure to replace "io.MousePos = ImVec2(-1,-1)" with "io.MousePos = ImVec2(-FLT_MAX,-FLT_MAX)".
+ - 2017/08/22 (1.51) - renamed IsItemHoveredRect() to IsItemRectHovered(). Kept inline redirection function (will obsolete). -> (1.52) use IsItemHovered(ImGuiHoveredFlags_RectOnly)!
+                     - renamed IsMouseHoveringAnyWindow() to IsAnyWindowHovered() for consistency. Kept inline redirection function (will obsolete).
+                     - renamed IsMouseHoveringWindow() to IsWindowRectHovered() for consistency. Kept inline redirection function (will obsolete).
+ - 2017/08/20 (1.51) - renamed GetStyleColName() to GetStyleColorName() for consistency.
+ - 2017/08/20 (1.51) - added PushStyleColor(ImGuiCol idx, ImU32 col) overload, which _might_ cause an "ambiguous call" compilation error if you are using ImColor() with implicit cast. Cast to ImU32 or ImVec4 explicily to fix.
+ - 2017/08/15 (1.51) - marked the weird IMGUI_ONCE_UPON_A_FRAME helper macro as obsolete. prefer using the more explicit ImGuiOnceUponAFrame type.
+ - 2017/08/15 (1.51) - changed parameter order for BeginPopupContextWindow() from (const char*,int buttons,bool also_over_items) to (const char*,int buttons,bool also_over_items). Note that most calls relied on default parameters completely.
+ - 2017/08/13 (1.51) - renamed ImGuiCol_Column to ImGuiCol_Separator, ImGuiCol_ColumnHovered to ImGuiCol_SeparatorHovered, ImGuiCol_ColumnActive to ImGuiCol_SeparatorActive. Kept redirection enums (will obsolete).
+ - 2017/08/11 (1.51) - renamed ImGuiSetCond_Always to ImGuiCond_Always, ImGuiSetCond_Once to ImGuiCond_Once, ImGuiSetCond_FirstUseEver to ImGuiCond_FirstUseEver, ImGuiSetCond_Appearing to ImGuiCond_Appearing. Kept redirection enums (will obsolete).
+ - 2017/08/09 (1.51) - removed ValueColor() helpers, they are equivalent to calling Text(label) + SameLine() + ColorButton().
+ - 2017/08/08 (1.51) - removed ColorEditMode() and ImGuiColorEditMode in favor of ImGuiColorEditFlags and parameters to the various Color*() functions. The SetColorEditOptions() allows to initialize default but the user can still change them with right-click context menu.
+                     - changed prototype of 'ColorEdit4(const char* label, float col[4], bool show_alpha = true)' to 'ColorEdit4(const char* label, float col[4], ImGuiColorEditFlags flags = 0)', where passing flags = 0x01 is a safe no-op (hello dodgy backward compatibility!). - check and run the demo window, under "Color/Picker Widgets", to understand the various new options.
+                     - changed prototype of rarely used 'ColorButton(ImVec4 col, bool small_height = false, bool outline_border = true)' to 'ColorButton(const char* desc_id, ImVec4 col, ImGuiColorEditFlags flags = 0, ImVec2 size = ImVec2(0, 0))'
+ - 2017/07/20 (1.51) - removed IsPosHoveringAnyWindow(ImVec2), which was partly broken and misleading. ASSERT + redirect user to io.WantCaptureMouse
+ - 2017/05/26 (1.50) - removed ImFontConfig::MergeGlyphCenterV in favor of a more multipurpose ImFontConfig::GlyphOffset.
+ - 2017/05/01 (1.50) - renamed ImDrawList::PathFill() (rarely used directly) to ImDrawList::PathFillConvex() for clarity.
+ - 2016/11/06 (1.50) - BeginChild(const char*) now applies the stack id to the provided label, consistently with other functions as it should always have been. It shouldn't affect you unless (extremely unlikely) you were appending multiple times to a same child from different locations of the stack id. If that's the case, generate an id with GetID() and use it instead of passing string to BeginChild().
+ - 2016/10/15 (1.50) - avoid 'void* user_data' parameter to io.SetClipboardTextFn/io.GetClipboardTextFn pointers. We pass io.ClipboardUserData to it.
+ - 2016/09/25 (1.50) - style.WindowTitleAlign is now a ImVec2 (ImGuiAlign enum was removed). set to (0.5f,0.5f) for horizontal+vertical centering, (0.0f,0.0f) for upper-left, etc.
+ - 2016/07/30 (1.50) - SameLine(x) with x>0.0f is now relative to left of column/group if any, and not always to left of window. This was sort of always the intent and hopefully, breakage should be minimal.
+ - 2016/05/12 (1.49) - title bar (using ImGuiCol_TitleBg/ImGuiCol_TitleBgActive colors) isn't rendered over a window background (ImGuiCol_WindowBg color) anymore.
+                       If your TitleBg/TitleBgActive alpha was 1.0f or you are using the default theme it will not affect you, otherwise if <1.0f you need to tweak your custom theme to readjust for the fact that we don't draw a WindowBg background behind the title bar.
+                       This helper function will convert an old TitleBg/TitleBgActive color into a new one with the same visual output, given the OLD color and the OLD WindowBg color:
+                       ImVec4 ConvertTitleBgCol(const ImVec4& win_bg_col, const ImVec4& title_bg_col) { float new_a = 1.0f - ((1.0f - win_bg_col.w) * (1.0f - title_bg_col.w)), k = title_bg_col.w / new_a; return ImVec4((win_bg_col.x * win_bg_col.w + title_bg_col.x) * k, (win_bg_col.y * win_bg_col.w + title_bg_col.y) * k, (win_bg_col.z * win_bg_col.w + title_bg_col.z) * k, new_a); }
+                       If this is confusing, pick the RGB value from title bar from an old screenshot and apply this as TitleBg/TitleBgActive. Or you may just create TitleBgActive from a tweaked TitleBg color.
+ - 2016/05/07 (1.49) - removed confusing set of GetInternalState(), GetInternalStateSize(), SetInternalState() functions. Now using CreateContext(), DestroyContext(), GetCurrentContext(), SetCurrentContext().
+ - 2016/05/02 (1.49) - renamed SetNextTreeNodeOpened() to SetNextTreeNodeOpen(), no redirection.
+ - 2016/05/01 (1.49) - obsoleted old signature of CollapsingHeader(const char* label, const char* str_id = NULL, bool display_frame = true, bool default_open = false) as extra parameters were badly designed and rarely used. You can replace the "default_open = true" flag in new API with CollapsingHeader(label, ImGuiTreeNodeFlags_DefaultOpen).
+ - 2016/04/26 (1.49) - changed ImDrawList::PushClipRect(ImVec4 rect) to ImDrawList::PushClipRect(Imvec2 min,ImVec2 max,bool intersect_with_current_clip_rect=false). Note that higher-level ImGui::PushClipRect() is preferable because it will clip at logic/widget level, whereas ImDrawList::PushClipRect() only affect your renderer.
+ - 2016/04/03 (1.48) - removed style.WindowFillAlphaDefault setting which was redundant. Bake default BG alpha inside style.Colors[ImGuiCol_WindowBg] and all other Bg color values. (ref GitHub issue #337).
+ - 2016/04/03 (1.48) - renamed ImGuiCol_TooltipBg to ImGuiCol_PopupBg, used by popups/menus and tooltips. popups/menus were previously using ImGuiCol_WindowBg. (ref github issue #337)
+ - 2016/03/21 (1.48) - renamed GetWindowFont() to GetFont(), GetWindowFontSize() to GetFontSize(). Kept inline redirection function (will obsolete).
+ - 2016/03/02 (1.48) - InputText() completion/history/always callbacks: if you modify the text buffer manually (without using DeleteChars()/InsertChars() helper) you need to maintain the BufTextLen field. added an assert.
+ - 2016/01/23 (1.48) - fixed not honoring exact width passed to PushItemWidth(), previously it would add extra FramePadding.x*2 over that width. if you had manual pixel-perfect alignment in place it might affect you.
+ - 2015/12/27 (1.48) - fixed ImDrawList::AddRect() which used to render a rectangle 1 px too large on each axis.
+ - 2015/12/04 (1.47) - renamed Color() helpers to ValueColor() - dangerously named, rarely used and probably to be made obsolete.
+ - 2015/08/29 (1.45) - with the addition of horizontal scrollbar we made various fixes to inconsistencies with dealing with cursor position.
+                       GetCursorPos()/SetCursorPos() functions now include the scrolled amount. It shouldn't affect the majority of users, but take note that SetCursorPosX(100.0f) puts you at +100 from the starting x position which may include scrolling, not at +100 from the window left side.
+                       GetContentRegionMax()/GetWindowContentRegionMin()/GetWindowContentRegionMax() functions allow include the scrolled amount. Typically those were used in cases where no scrolling would happen so it may not be a problem, but watch out!
+ - 2015/08/29 (1.45) - renamed style.ScrollbarWidth to style.ScrollbarSize
+ - 2015/08/05 (1.44) - split imgui.cpp into extra files: imgui_demo.cpp imgui_draw.cpp imgui_internal.h that you need to add to your project.
+ - 2015/07/18 (1.44) - fixed angles in ImDrawList::PathArcTo(), PathArcToFast() (introduced in 1.43) being off by an extra PI for no justifiable reason
+ - 2015/07/14 (1.43) - add new ImFontAtlas::AddFont() API. For the old AddFont***, moved the 'font_no' parameter of ImFontAtlas::AddFont** functions to the ImFontConfig structure.
+                       you need to render your textured triangles with bilinear filtering to benefit from sub-pixel positioning of text.
+ - 2015/07/08 (1.43) - switched rendering data to use indexed rendering. this is saving a fair amount of CPU/GPU and enables us to get anti-aliasing for a marginal cost.
+                       this necessary change will break your rendering function! the fix should be very easy. sorry for that :(
+                     - if you are using a vanilla copy of one of the imgui_impl_XXX.cpp provided in the example, you just need to update your copy and you can ignore the rest.
+                     - the signature of the io.RenderDrawListsFn handler has changed!
+                       old: ImGui_XXXX_RenderDrawLists(ImDrawList** const cmd_lists, int cmd_lists_count)
+                       new: ImGui_XXXX_RenderDrawLists(ImDrawData* draw_data).
+                         parameters: 'cmd_lists' becomes 'draw_data->CmdLists', 'cmd_lists_count' becomes 'draw_data->CmdListsCount'
+                         ImDrawList: 'commands' becomes 'CmdBuffer', 'vtx_buffer' becomes 'VtxBuffer', 'IdxBuffer' is new.
+                         ImDrawCmd:  'vtx_count' becomes 'ElemCount', 'clip_rect' becomes 'ClipRect', 'user_callback' becomes 'UserCallback', 'texture_id' becomes 'TextureId'.
+                     - each ImDrawList now contains both a vertex buffer and an index buffer. For each command, render ElemCount/3 triangles using indices from the index buffer.
+                     - if you REALLY cannot render indexed primitives, you can call the draw_data->DeIndexAllBuffers() method to de-index the buffers. This is slow and a waste of CPU/GPU. Prefer using indexed rendering!
+                     - refer to code in the examples/ folder or ask on the GitHub if you are unsure of how to upgrade. please upgrade!
+ - 2015/07/10 (1.43) - changed SameLine() parameters from int to float.
+ - 2015/07/02 (1.42) - renamed SetScrollPosHere() to SetScrollFromCursorPos(). Kept inline redirection function (will obsolete).
+ - 2015/07/02 (1.42) - renamed GetScrollPosY() to GetScrollY(). Necessary to reduce confusion along with other scrolling functions, because positions (e.g. cursor position) are not equivalent to scrolling amount.
+ - 2015/06/14 (1.41) - changed ImageButton() default bg_col parameter from (0,0,0,1) (black) to (0,0,0,0) (transparent) - makes a difference when texture have transparence
+ - 2015/06/14 (1.41) - changed Selectable() API from (label, selected, size) to (label, selected, flags, size). Size override should have been rarely used. Sorry!
+ - 2015/05/31 (1.40) - renamed GetWindowCollapsed() to IsWindowCollapsed() for consistency. Kept inline redirection function (will obsolete).
+ - 2015/05/31 (1.40) - renamed IsRectClipped() to IsRectVisible() for consistency. Note that return value is opposite! Kept inline redirection function (will obsolete).
+ - 2015/05/27 (1.40) - removed the third 'repeat_if_held' parameter from Button() - sorry! it was rarely used and inconsistent. Use PushButtonRepeat(true) / PopButtonRepeat() to enable repeat on desired buttons.
+ - 2015/05/11 (1.40) - changed BeginPopup() API, takes a string identifier instead of a bool. ImGui needs to manage the open/closed state of popups. Call OpenPopup() to actually set the "open" state of a popup. BeginPopup() returns true if the popup is opened.
+ - 2015/05/03 (1.40) - removed style.AutoFitPadding, using style.WindowPadding makes more sense (the default values were already the same).
+ - 2015/04/13 (1.38) - renamed IsClipped() to IsRectClipped(). Kept inline redirection function until 1.50.
+ - 2015/04/09 (1.38) - renamed ImDrawList::AddArc() to ImDrawList::AddArcFast() for compatibility with future API
+ - 2015/04/03 (1.38) - removed ImGuiCol_CheckHovered, ImGuiCol_CheckActive, replaced with the more general ImGuiCol_FrameBgHovered, ImGuiCol_FrameBgActive.
+ - 2014/04/03 (1.38) - removed support for passing -FLT_MAX..+FLT_MAX as the range for a SliderFloat(). Use DragFloat() or Inputfloat() instead.
+ - 2015/03/17 (1.36) - renamed GetItemBoxMin()/GetItemBoxMax()/IsMouseHoveringBox() to GetItemRectMin()/GetItemRectMax()/IsMouseHoveringRect(). Kept inline redirection function until 1.50.
+ - 2015/03/15 (1.36) - renamed style.TreeNodeSpacing to style.IndentSpacing, ImGuiStyleVar_TreeNodeSpacing to ImGuiStyleVar_IndentSpacing
+ - 2015/03/13 (1.36) - renamed GetWindowIsFocused() to IsWindowFocused(). Kept inline redirection function until 1.50.
+ - 2015/03/08 (1.35) - renamed style.ScrollBarWidth to style.ScrollbarWidth (casing)
+ - 2015/02/27 (1.34) - renamed OpenNextNode(bool) to SetNextTreeNodeOpened(bool, ImGuiSetCond). Kept inline redirection function until 1.50.
+ - 2015/02/27 (1.34) - renamed ImGuiSetCondition_*** to ImGuiSetCond_***, and _FirstUseThisSession becomes _Once.
+ - 2015/02/11 (1.32) - changed text input callback ImGuiTextEditCallback return type from void-->int. reserved for future use, return 0 for now.
+ - 2015/02/10 (1.32) - renamed GetItemWidth() to CalcItemWidth() to clarify its evolving behavior
+ - 2015/02/08 (1.31) - renamed GetTextLineSpacing() to GetTextLineHeightWithSpacing()
+ - 2015/02/01 (1.31) - removed IO.MemReallocFn (unused)
+ - 2015/01/19 (1.30) - renamed ImGuiStorage::GetIntPtr()/GetFloatPtr() to GetIntRef()/GetIntRef() because Ptr was conflicting with actual pointer storage functions.
+ - 2015/01/11 (1.30) - big font/image API change! now loads TTF file. allow for multiple fonts. no need for a PNG loader.
+ - 2015/01/11 (1.30) - removed GetDefaultFontData(). uses io.Fonts->GetTextureData*() API to retrieve uncompressed pixels.
+                       - old:  const void* png_data; unsigned int png_size; ImGui::GetDefaultFontData(NULL, NULL, &png_data, &png_size); [..Upload texture to GPU..];
+                       - new:  unsigned char* pixels; int width, height; io.Fonts->GetTexDataAsRGBA32(&pixels, &width, &height); [..Upload texture to GPU..]; io.Fonts->SetTexID(YourTexIdentifier);
+                       you now have more flexibility to load multiple TTF fonts and manage the texture buffer for internal needs. It is now recommended that you sample the font texture with bilinear interpolation.
+ - 2015/01/11 (1.30) - added texture identifier in ImDrawCmd passed to your render function (we can now render images). make sure to call io.Fonts->SetTexID()
+ - 2015/01/11 (1.30) - removed IO.PixelCenterOffset (unnecessary, can be handled in user projection matrix)
+ - 2015/01/11 (1.30) - removed ImGui::IsItemFocused() in favor of ImGui::IsItemActive() which handles all widgets
+ - 2014/12/10 (1.18) - removed SetNewWindowDefaultPos() in favor of new generic API SetNextWindowPos(pos, ImGuiSetCondition_FirstUseEver)
+ - 2014/11/28 (1.17) - moved IO.Font*** options to inside the IO.Font-> structure (FontYOffset, FontTexUvForWhite, FontBaseScale, FontFallbackGlyph)
+ - 2014/11/26 (1.17) - reworked syntax of IMGUI_ONCE_UPON_A_FRAME helper macro to increase compiler compatibility
+ - 2014/11/07 (1.15) - renamed IsHovered() to IsItemHovered()
+ - 2014/10/02 (1.14) - renamed IMGUI_INCLUDE_IMGUI_USER_CPP to IMGUI_INCLUDE_IMGUI_USER_INL and imgui_user.cpp to imgui_user.inl (more IDE friendly)
+ - 2014/09/25 (1.13) - removed 'text_end' parameter from IO.SetClipboardTextFn (the string is now always zero-terminated for simplicity)
+ - 2014/09/24 (1.12) - renamed SetFontScale() to SetWindowFontScale()
+ - 2014/09/24 (1.12) - moved IM_MALLOC/IM_REALLOC/IM_FREE preprocessor defines to IO.MemAllocFn/IO.MemReallocFn/IO.MemFreeFn
+ - 2014/08/30 (1.09) - removed IO.FontHeight (now computed automatically)
+ - 2014/08/30 (1.09) - moved IMGUI_FONT_TEX_UV_FOR_WHITE preprocessor define to IO.FontTexUvForWhite
+ - 2014/08/28 (1.09) - changed the behavior of IO.PixelCenterOffset following various rendering fixes
+
+
+ FREQUENTLY ASKED QUESTIONS (FAQ)
+ ================================
+
+ Read all answers online:
+   https://www.dearimgui.org/faq or https://github.com/ocornut/imgui/blob/master/docs/FAQ.md (same url)
+ Read all answers locally (with a text editor or ideally a Markdown viewer):
+   docs/FAQ.md
+ Some answers are copied down here to facilitate searching in code.
+
+ Q&A: Basics
+ ===========
+
+ Q: Where is the documentation?
+ A: This library is poorly documented at the moment and expects the user to be acquainted with C/C++.
+    - Run the examples/ and explore them.
+    - See demo code in imgui_demo.cpp and particularly the ImGui::ShowDemoWindow() function.
+    - The demo covers most features of Dear ImGui, so you can read the code and see its output.
+    - See documentation and comments at the top of imgui.cpp + effectively imgui.h.
+    - Dozens of standalone example applications using e.g. OpenGL/DirectX are provided in the
+      examples/ folder to explain how to integrate Dear ImGui with your own engine/application.
+    - The Wiki (https://github.com/ocornut/imgui/wiki) has many resources and links.
+    - The Glossary (https://github.com/ocornut/imgui/wiki/Glossary) page also may be useful.
+    - Your programming IDE is your friend, find the type or function declaration to find comments
+      associated with it.
+
+ Q: What is this library called?
+ Q: Which version should I get?
+ >> This library is called "Dear ImGui", please don't call it "ImGui" :)
+ >> See https://www.dearimgui.org/faq for details.
+
+ Q&A: Integration
+ ================
+
+ Q: How to get started?
+ A: Read 'PROGRAMMER GUIDE' above. Read examples/README.txt.
+
+ Q: How can I tell whether to dispatch mouse/keyboard to Dear ImGui or my application?
+ A: You should read the 'io.WantCaptureMouse', 'io.WantCaptureKeyboard' and 'io.WantTextInput' flags!
+ >> See https://www.dearimgui.org/faq for a fully detailed answer. You really want to read this.
+
+ Q. How can I enable keyboard controls?
+ Q: How can I use this without a mouse, without a keyboard or without a screen? (gamepad, input share, remote display)
+ Q: I integrated Dear ImGui in my engine and little squares are showing instead of text...
+ Q: I integrated Dear ImGui in my engine and some elements are clipping or disappearing when I move windows around...
+ Q: I integrated Dear ImGui in my engine and some elements are displaying outside their expected windows boundaries...
+ >> See https://www.dearimgui.org/faq
+
+ Q&A: Usage
+ ----------
+
+ Q: About the ID Stack system..
+   - Why is my widget not reacting when I click on it?
+   - How can I have widgets with an empty label?
+   - How can I have multiple widgets with the same label?
+   - How can I have multiple windows with the same label?
+ Q: How can I display an image? What is ImTextureID, how does it works?
+ Q: How can I use my own math types instead of ImVec2/ImVec4?
+ Q: How can I interact with standard C++ types (such as std::string and std::vector)?
+ Q: How can I display custom shapes? (using low-level ImDrawList API)
+ >> See https://www.dearimgui.org/faq
+
+ Q&A: Fonts, Text
+ ================
+
+ Q: How should I handle DPI in my application?
+ Q: How can I load a different font than the default?
+ Q: How can I easily use icons in my application?
+ Q: How can I load multiple fonts?
+ Q: How can I display and input non-Latin characters such as Chinese, Japanese, Korean, Cyrillic?
+ >> See https://www.dearimgui.org/faq and https://github.com/ocornut/imgui/edit/master/docs/FONTS.md
+
+ Q&A: Concerns
+ =============
+
+ Q: Who uses Dear ImGui?
+ Q: Can you create elaborate/serious tools with Dear ImGui?
+ Q: Can you reskin the look of Dear ImGui?
+ Q: Why using C++ (as opposed to C)?
+ >> See https://www.dearimgui.org/faq
+
+ Q&A: Community
+ ==============
+
+ Q: How can I help?
+ A: - Businesses: please reach out to "contact AT dearimgui.com" if you work in a place using Dear ImGui!
+      We can discuss ways for your company to fund development via invoiced technical support, maintenance or sponsoring contacts.
+      This is among the most useful thing you can do for Dear ImGui. With increased funding, we can hire more people working on this project.
+    - Individuals: you can support continued development via PayPal donations. See README.
+    - If you are experienced with Dear ImGui and C++, look at the GitHub issues, look at the Wiki, read docs/TODO.txt
+      and see how you want to help and can help!
+    - Disclose your usage of Dear ImGui via a dev blog post, a tweet, a screenshot, a mention somewhere etc.
+      You may post screenshot or links in the gallery threads. Visuals are ideal as they inspire other programmers.
+      But even without visuals, disclosing your use of dear imgui helps the library grow credibility, and help other teams and programmers with taking decisions.
+    - If you have issues or if you need to hack into the library, even if you don't expect any support it is useful that you share your issues (on GitHub or privately).
+
+*/
+
+//-------------------------------------------------------------------------
+// [SECTION] INCLUDES
+//-------------------------------------------------------------------------
+
+#if defined(_MSC_VER) && !defined(_CRT_SECURE_NO_WARNINGS)
+#define _CRT_SECURE_NO_WARNINGS
+#endif
+
+#include "imgui.h"
+#ifndef IMGUI_DISABLE
+
+#ifndef IMGUI_DEFINE_MATH_OPERATORS
+#define IMGUI_DEFINE_MATH_OPERATORS
+#endif
+#include "imgui_internal.h"
+
+// System includes
+#include <ctype.h>      // toupper
+#include <stdio.h>      // vsnprintf, sscanf, printf
+#if defined(_MSC_VER) && _MSC_VER <= 1500 // MSVC 2008 or earlier
+#include <stddef.h>     // intptr_t
+#else
+#include <stdint.h>     // intptr_t
+#endif
+
+// [Windows] On non-Visual Studio compilers, we default to IMGUI_DISABLE_WIN32_DEFAULT_IME_FUNCTIONS unless explicitly enabled
+#if defined(_WIN32) && !defined(_MSC_VER) && !defined(IMGUI_ENABLE_WIN32_DEFAULT_IME_FUNCTIONS) && !defined(IMGUI_DISABLE_WIN32_DEFAULT_IME_FUNCTIONS)
+#define IMGUI_DISABLE_WIN32_DEFAULT_IME_FUNCTIONS
+#endif
+
+// [Windows] OS specific includes (optional)
+#if defined(_WIN32) && defined(IMGUI_DISABLE_DEFAULT_FILE_FUNCTIONS) && defined(IMGUI_DISABLE_WIN32_DEFAULT_CLIPBOARD_FUNCTIONS) && defined(IMGUI_DISABLE_WIN32_DEFAULT_IME_FUNCTIONS) && !defined(IMGUI_DISABLE_WIN32_FUNCTIONS)
+#define IMGUI_DISABLE_WIN32_FUNCTIONS
+#endif
+#if defined(_WIN32) && !defined(IMGUI_DISABLE_WIN32_FUNCTIONS)
+#ifndef WIN32_LEAN_AND_MEAN
+#define WIN32_LEAN_AND_MEAN
+#endif
+#ifndef NOMINMAX
+#define NOMINMAX
+#endif
+#ifndef __MINGW32__
+#include <Windows.h>        // _wfopen, OpenClipboard
+#else
+#include <windows.h>
+#endif
+#if defined(WINAPI_FAMILY) && (WINAPI_FAMILY == WINAPI_FAMILY_APP) // UWP doesn't have all Win32 functions
+#define IMGUI_DISABLE_WIN32_DEFAULT_CLIPBOARD_FUNCTIONS
+#define IMGUI_DISABLE_WIN32_DEFAULT_IME_FUNCTIONS
+#endif
+#endif
+
+// [Apple] OS specific includes
+#if defined(__APPLE__)
+#include <TargetConditionals.h>
+#endif
+
+// Visual Studio warnings
+#ifdef _MSC_VER
+#pragma warning (disable: 4127)             // condition expression is constant
+#pragma warning (disable: 4996)             // 'This function or variable may be unsafe': strcpy, strdup, sprintf, vsnprintf, sscanf, fopen
+#if defined(_MSC_VER) && _MSC_VER >= 1922   // MSVC 2019 16.2 or later
+#pragma warning (disable: 5054)             // operator '|': deprecated between enumerations of different types
+#endif
+#pragma warning (disable: 26451)            // [Static Analyzer] Arithmetic overflow : Using operator 'xxx' on a 4 byte value and then casting the result to a 8 byte value. Cast the value to the wider type before calling operator 'xxx' to avoid overflow(io.2).
+#pragma warning (disable: 26495)            // [Static Analyzer] Variable 'XXX' is uninitialized. Always initialize a member variable (type.6).
+#pragma warning (disable: 26812)            // [Static Analyzer] The enum type 'xxx' is unscoped. Prefer 'enum class' over 'enum' (Enum.3).
+#endif
+
+// Clang/GCC warnings with -Weverything
+#if defined(__clang__)
+#if __has_warning("-Wunknown-warning-option")
+#pragma clang diagnostic ignored "-Wunknown-warning-option"         // warning: unknown warning group 'xxx'                      // not all warnings are known by all Clang versions and they tend to be rename-happy.. so ignoring warnings triggers new warnings on some configuration. Great!
+#endif
+#pragma clang diagnostic ignored "-Wunknown-pragmas"                // warning: unknown warning group 'xxx'
+#pragma clang diagnostic ignored "-Wold-style-cast"                 // warning: use of old-style cast                            // yes, they are more terse.
+#pragma clang diagnostic ignored "-Wfloat-equal"                    // warning: comparing floating point with == or != is unsafe // storing and comparing against same constants (typically 0.0f) is ok.
+#pragma clang diagnostic ignored "-Wformat-nonliteral"              // warning: format string is not a string literal            // passing non-literal to vsnformat(). yes, user passing incorrect format strings can crash the code.
+#pragma clang diagnostic ignored "-Wexit-time-destructors"          // warning: declaration requires an exit-time destructor     // exit-time destruction order is undefined. if MemFree() leads to users code that has been disabled before exit it might cause problems. ImGui coding style welcomes static/globals.
+#pragma clang diagnostic ignored "-Wglobal-constructors"            // warning: declaration requires a global destructor         // similar to above, not sure what the exact difference is.
+#pragma clang diagnostic ignored "-Wsign-conversion"                // warning: implicit conversion changes signedness
+#pragma clang diagnostic ignored "-Wformat-pedantic"                // warning: format specifies type 'void *' but the argument has type 'xxxx *' // unreasonable, would lead to casting every %p arg to void*. probably enabled by -pedantic.
+#pragma clang diagnostic ignored "-Wint-to-void-pointer-cast"       // warning: cast to 'void *' from smaller integer type 'int'
+#pragma clang diagnostic ignored "-Wzero-as-null-pointer-constant"  // warning: zero as null pointer constant                    // some standard header variations use #define NULL 0
+#pragma clang diagnostic ignored "-Wdouble-promotion"               // warning: implicit conversion from 'float' to 'double' when passing argument to function  // using printf() is a misery with this as C++ va_arg ellipsis changes float to double.
+#pragma clang diagnostic ignored "-Wimplicit-int-float-conversion"  // warning: implicit conversion from 'xxx' to 'float' may lose precision
+#elif defined(__GNUC__)
+// We disable -Wpragmas because GCC doesn't provide an has_warning equivalent and some forks/patches may not following the warning/version association.
+#pragma GCC diagnostic ignored "-Wpragmas"                  // warning: unknown option after '#pragma GCC diagnostic' kind
+#pragma GCC diagnostic ignored "-Wunused-function"          // warning: 'xxxx' defined but not used
+#pragma GCC diagnostic ignored "-Wint-to-pointer-cast"      // warning: cast to pointer from integer of different size
+#pragma GCC diagnostic ignored "-Wformat"                   // warning: format '%p' expects argument of type 'void*', but argument 6 has type 'ImGuiWindow*'
+#pragma GCC diagnostic ignored "-Wdouble-promotion"         // warning: implicit conversion from 'float' to 'double' when passing argument to function
+#pragma GCC diagnostic ignored "-Wconversion"               // warning: conversion to 'xxxx' from 'xxxx' may alter its value
+#pragma GCC diagnostic ignored "-Wformat-nonliteral"        // warning: format not a string literal, format string not checked
+#pragma GCC diagnostic ignored "-Wstrict-overflow"          // warning: assuming signed overflow does not occur when assuming that (X - c) > X is always false
+#pragma GCC diagnostic ignored "-Wclass-memaccess"          // [__GNUC__ >= 8] warning: 'memset/memcpy' clearing/writing an object of type 'xxxx' with no trivial copy-assignment; use assignment or value-initialization instead
+#endif
+
+// Debug options
+#define IMGUI_DEBUG_NAV_SCORING     0   // Display navigation scoring preview when hovering items. Display last moving direction matches when holding CTRL
+#define IMGUI_DEBUG_NAV_RECTS       0   // Display the reference navigation rectangle for each window
+#define IMGUI_DEBUG_INI_SETTINGS    0   // Save additional comments in .ini file (particularly helps for Docking, but makes saving slower)
+
+// When using CTRL+TAB (or Gamepad Square+L/R) we delay the visual a little in order to reduce visual noise doing a fast switch.
+static const float NAV_WINDOWING_HIGHLIGHT_DELAY            = 0.20f;    // Time before the highlight and screen dimming starts fading in
+static const float NAV_WINDOWING_LIST_APPEAR_DELAY          = 0.15f;    // Time before the window list starts to appear
+
+// Window resizing from edges (when io.ConfigWindowsResizeFromEdges = true and ImGuiBackendFlags_HasMouseCursors is set in io.BackendFlags by backend)
+static const float WINDOWS_HOVER_PADDING                    = 4.0f;     // Extend outside window for hovering/resizing (maxxed with TouchPadding) and inside windows for borders. Affect FindHoveredWindow().
+static const float WINDOWS_RESIZE_FROM_EDGES_FEEDBACK_TIMER = 0.04f;    // Reduce visual noise by only highlighting the border after a certain time.
+static const float WINDOWS_MOUSE_WHEEL_SCROLL_LOCK_TIMER    = 2.00f;    // Lock scrolled window (so it doesn't pick child windows that are scrolling through) for a certain time, unless mouse moved.
+
+//-------------------------------------------------------------------------
+// [SECTION] FORWARD DECLARATIONS
+//-------------------------------------------------------------------------
+
+static void             SetCurrentWindow(ImGuiWindow* window);
+static void             FindHoveredWindow();
+static ImGuiWindow*     CreateNewWindow(const char* name, ImGuiWindowFlags flags);
+static ImVec2           CalcNextScrollFromScrollTargetAndClamp(ImGuiWindow* window);
+
+static void             AddDrawListToDrawData(ImVector<ImDrawList*>* out_list, ImDrawList* draw_list);
+static void             AddWindowToSortBuffer(ImVector<ImGuiWindow*>* out_sorted_windows, ImGuiWindow* window);
+
+// Settings
+static void             WindowSettingsHandler_ClearAll(ImGuiContext*, ImGuiSettingsHandler*);
+static void*            WindowSettingsHandler_ReadOpen(ImGuiContext*, ImGuiSettingsHandler*, const char* name);
+static void             WindowSettingsHandler_ReadLine(ImGuiContext*, ImGuiSettingsHandler*, void* entry, const char* line);
+static void             WindowSettingsHandler_ApplyAll(ImGuiContext*, ImGuiSettingsHandler*);
+static void             WindowSettingsHandler_WriteAll(ImGuiContext*, ImGuiSettingsHandler*, ImGuiTextBuffer* buf);
+
+// Platform Dependents default implementation for IO functions
+static const char*      GetClipboardTextFn_DefaultImpl(void* user_data);
+static void             SetClipboardTextFn_DefaultImpl(void* user_data, const char* text);
+static void             SetPlatformImeDataFn_DefaultImpl(ImGuiViewport* viewport, ImGuiPlatformImeData* data);
+
+namespace ImGui
+{
+// Navigation
+static void             NavUpdate();
+static void             NavUpdateWindowing();
+static void             NavUpdateWindowingOverlay();
+static void             NavUpdateCancelRequest();
+static void             NavUpdateCreateMoveRequest();
+static void             NavUpdateCreateTabbingRequest();
+static float            NavUpdatePageUpPageDown();
+static inline void      NavUpdateAnyRequestFlag();
+static void             NavUpdateCreateWrappingRequest();
+static void             NavEndFrame();
+static bool             NavScoreItem(ImGuiNavItemData* result);
+static void             NavApplyItemToResult(ImGuiNavItemData* result);
+static void             NavProcessItem();
+static void             NavProcessItemForTabbingRequest(ImGuiID id);
+static ImVec2           NavCalcPreferredRefPos();
+static void             NavSaveLastChildNavWindowIntoParent(ImGuiWindow* nav_window);
+static ImGuiWindow*     NavRestoreLastChildNavWindow(ImGuiWindow* window);
+static void             NavRestoreLayer(ImGuiNavLayer layer);
+static void             NavRestoreHighlightAfterMove();
+static int              FindWindowFocusIndex(ImGuiWindow* window);
+
+// Error Checking and Debug Tools
+static void             ErrorCheckNewFrameSanityChecks();
+static void             ErrorCheckEndFrameSanityChecks();
+static void             UpdateDebugToolItemPicker();
+static void             UpdateDebugToolStackQueries();
+
+// Misc
+static void             UpdateSettings();
+static void             UpdateKeyboardInputs();
+static void             UpdateMouseInputs();
+static void             UpdateMouseWheel();
+static bool             UpdateWindowManualResize(ImGuiWindow* window, const ImVec2& size_auto_fit, int* border_held, int resize_grip_count, ImU32 resize_grip_col[4], const ImRect& visibility_rect);
+static void             RenderWindowOuterBorders(ImGuiWindow* window);
+static void             RenderWindowDecorations(ImGuiWindow* window, const ImRect& title_bar_rect, bool title_bar_is_highlight, int resize_grip_count, const ImU32 resize_grip_col[4], float resize_grip_draw_size);
+static void             RenderWindowTitleBarContents(ImGuiWindow* window, const ImRect& title_bar_rect, const char* name, bool* p_open);
+static void             RenderDimmedBackgroundBehindWindow(ImGuiWindow* window, ImU32 col);
+static void             RenderDimmedBackgrounds();
+static ImGuiWindow*     FindBlockingModal(ImGuiWindow* window);
+
+// Viewports
+static void             UpdateViewportsNewFrame();
+
+}
+
+//-----------------------------------------------------------------------------
+// [SECTION] CONTEXT AND MEMORY ALLOCATORS
+//-----------------------------------------------------------------------------
+
+// DLL users:
+// - Heaps and globals are not shared across DLL boundaries!
+// - You will need to call SetCurrentContext() + SetAllocatorFunctions() for each static/DLL boundary you are calling from.
+// - Same applies for hot-reloading mechanisms that are reliant on reloading DLL (note that many hot-reloading mechanisms work without DLL).
+// - Using Dear ImGui via a shared library is not recommended, because of function call overhead and because we don't guarantee backward nor forward ABI compatibility.
+// - Confused? In a debugger: add GImGui to your watch window and notice how its value changes depending on your current location (which DLL boundary you are in).
+
+// Current context pointer. Implicitly used by all Dear ImGui functions. Always assumed to be != NULL.
+// - ImGui::CreateContext() will automatically set this pointer if it is NULL.
+//   Change to a different context by calling ImGui::SetCurrentContext().
+// - Important: Dear ImGui functions are not thread-safe because of this pointer.
+//   If you want thread-safety to allow N threads to access N different contexts:
+//   - Change this variable to use thread local storage so each thread can refer to a different context, in your imconfig.h:
+//         struct ImGuiContext;
+//         extern thread_local ImGuiContext* MyImGuiTLS;
+//         #define GImGui MyImGuiTLS
+//     And then define MyImGuiTLS in one of your cpp files. Note that thread_local is a C++11 keyword, earlier C++ uses compiler-specific keyword.
+//   - Future development aims to make this context pointer explicit to all calls. Also read https://github.com/ocornut/imgui/issues/586
+//   - If you need a finite number of contexts, you may compile and use multiple instances of the ImGui code from a different namespace.
+// - DLL users: read comments above.
+#ifndef GImGui
+ImGuiContext*   GImGui = NULL;
+#endif
+
+// Memory Allocator functions. Use SetAllocatorFunctions() to change them.
+// - You probably don't want to modify that mid-program, and if you use global/static e.g. ImVector<> instances you may need to keep them accessible during program destruction.
+// - DLL users: read comments above.
+#ifndef IMGUI_DISABLE_DEFAULT_ALLOCATORS
+static void*   MallocWrapper(size_t size, void* user_data)    { IM_UNUSED(user_data); return malloc(size); }
+static void    FreeWrapper(void* ptr, void* user_data)        { IM_UNUSED(user_data); free(ptr); }
+#else
+static void*   MallocWrapper(size_t size, void* user_data)    { IM_UNUSED(user_data); IM_UNUSED(size); IM_ASSERT(0); return NULL; }
+static void    FreeWrapper(void* ptr, void* user_data)        { IM_UNUSED(user_data); IM_UNUSED(ptr); IM_ASSERT(0); }
+#endif
+static ImGuiMemAllocFunc    GImAllocatorAllocFunc = MallocWrapper;
+static ImGuiMemFreeFunc     GImAllocatorFreeFunc = FreeWrapper;
+static void*                GImAllocatorUserData = NULL;
+
+//-----------------------------------------------------------------------------
+// [SECTION] USER FACING STRUCTURES (ImGuiStyle, ImGuiIO)
+//-----------------------------------------------------------------------------
+
+ImGuiStyle::ImGuiStyle()
+{
+    Alpha                   = 1.0f;             // Global alpha applies to everything in Dear ImGui.
+    DisabledAlpha           = 0.60f;            // Additional alpha multiplier applied by BeginDisabled(). Multiply over current value of Alpha.
+    WindowPadding           = ImVec2(8,8);      // Padding within a window
+    WindowRounding          = 0.0f;             // Radius of window corners rounding. Set to 0.0f to have rectangular windows. Large values tend to lead to variety of artifacts and are not recommended.
+    WindowBorderSize        = 1.0f;             // Thickness of border around windows. Generally set to 0.0f or 1.0f. Other values not well tested.
+    WindowMinSize           = ImVec2(32,32);    // Minimum window size
+    WindowTitleAlign        = ImVec2(0.0f,0.5f);// Alignment for title bar text
+    WindowMenuButtonPosition= ImGuiDir_Left;    // Position of the collapsing/docking button in the title bar (left/right). Defaults to ImGuiDir_Left.
+    ChildRounding           = 0.0f;             // Radius of child window corners rounding. Set to 0.0f to have rectangular child windows
+    ChildBorderSize         = 1.0f;             // Thickness of border around child windows. Generally set to 0.0f or 1.0f. Other values not well tested.
+    PopupRounding           = 0.0f;             // Radius of popup window corners rounding. Set to 0.0f to have rectangular child windows
+    PopupBorderSize         = 1.0f;             // Thickness of border around popup or tooltip windows. Generally set to 0.0f or 1.0f. Other values not well tested.
+    FramePadding            = ImVec2(4,3);      // Padding within a framed rectangle (used by most widgets)
+    FrameRounding           = 0.0f;             // Radius of frame corners rounding. Set to 0.0f to have rectangular frames (used by most widgets).
+    FrameBorderSize         = 0.0f;             // Thickness of border around frames. Generally set to 0.0f or 1.0f. Other values not well tested.
+    ItemSpacing             = ImVec2(8,4);      // Horizontal and vertical spacing between widgets/lines
+    ItemInnerSpacing        = ImVec2(4,4);      // Horizontal and vertical spacing between within elements of a composed widget (e.g. a slider and its label)
+    CellPadding             = ImVec2(4,2);      // Padding within a table cell
+    TouchExtraPadding       = ImVec2(0,0);      // Expand reactive bounding box for touch-based system where touch position is not accurate enough. Unfortunately we don't sort widgets so priority on overlap will always be given to the first widget. So don't grow this too much!
+    IndentSpacing           = 21.0f;            // Horizontal spacing when e.g. entering a tree node. Generally == (FontSize + FramePadding.x*2).
+    ColumnsMinSpacing       = 6.0f;             // Minimum horizontal spacing between two columns. Preferably > (FramePadding.x + 1).
+    ScrollbarSize           = 14.0f;            // Width of the vertical scrollbar, Height of the horizontal scrollbar
+    ScrollbarRounding       = 9.0f;             // Radius of grab corners rounding for scrollbar
+    GrabMinSize             = 12.0f;            // Minimum width/height of a grab box for slider/scrollbar
+    GrabRounding            = 0.0f;             // Radius of grabs corners rounding. Set to 0.0f to have rectangular slider grabs.
+    LogSliderDeadzone       = 4.0f;             // The size in pixels of the dead-zone around zero on logarithmic sliders that cross zero.
+    TabRounding             = 4.0f;             // Radius of upper corners of a tab. Set to 0.0f to have rectangular tabs.
+    TabBorderSize           = 0.0f;             // Thickness of border around tabs.
+    TabMinWidthForCloseButton = 0.0f;           // Minimum width for close button to appears on an unselected tab when hovered. Set to 0.0f to always show when hovering, set to FLT_MAX to never show close button unless selected.
+    ColorButtonPosition     = ImGuiDir_Right;   // Side of the color button in the ColorEdit4 widget (left/right). Defaults to ImGuiDir_Right.
+    ButtonTextAlign         = ImVec2(0.5f,0.5f);// Alignment of button text when button is larger than text.
+    SelectableTextAlign     = ImVec2(0.0f,0.0f);// Alignment of selectable text. Defaults to (0.0f, 0.0f) (top-left aligned). It's generally important to keep this left-aligned if you want to lay multiple items on a same line.
+    DisplayWindowPadding    = ImVec2(19,19);    // Window position are clamped to be visible within the display area or monitors by at least this amount. Only applies to regular windows.
+    DisplaySafeAreaPadding  = ImVec2(3,3);      // If you cannot see the edge of your screen (e.g. on a TV) increase the safe area padding. Covers popups/tooltips as well regular windows.
+    MouseCursorScale        = 1.0f;             // Scale software rendered mouse cursor (when io.MouseDrawCursor is enabled). May be removed later.
+    AntiAliasedLines        = true;             // Enable anti-aliased lines/borders. Disable if you are really tight on CPU/GPU.
+    AntiAliasedLinesUseTex  = true;             // Enable anti-aliased lines/borders using textures where possible. Require backend to render with bilinear filtering (NOT point/nearest filtering).
+    AntiAliasedFill         = true;             // Enable anti-aliased filled shapes (rounded rectangles, circles, etc.).
+    CurveTessellationTol    = 1.25f;            // Tessellation tolerance when using PathBezierCurveTo() without a specific number of segments. Decrease for highly tessellated curves (higher quality, more polygons), increase to reduce quality.
+    CircleTessellationMaxError = 0.30f;         // Maximum error (in pixels) allowed when using AddCircle()/AddCircleFilled() or drawing rounded corner rectangles with no explicit segment count specified. Decrease for higher quality but more geometry.
+
+    // Default theme
+    ImGui::StyleColorsDark(this);
+}
+
+// To scale your entire UI (e.g. if you want your app to use High DPI or generally be DPI aware) you may use this helper function. Scaling the fonts is done separately and is up to you.
+// Important: This operation is lossy because we round all sizes to integer. If you need to change your scale multiples, call this over a freshly initialized ImGuiStyle structure rather than scaling multiple times.
+void ImGuiStyle::ScaleAllSizes(float scale_factor)
+{
+    WindowPadding = ImFloor(WindowPadding * scale_factor);
+    WindowRounding = ImFloor(WindowRounding * scale_factor);
+    WindowMinSize = ImFloor(WindowMinSize * scale_factor);
+    ChildRounding = ImFloor(ChildRounding * scale_factor);
+    PopupRounding = ImFloor(PopupRounding * scale_factor);
+    FramePadding = ImFloor(FramePadding * scale_factor);
+    FrameRounding = ImFloor(FrameRounding * scale_factor);
+    ItemSpacing = ImFloor(ItemSpacing * scale_factor);
+    ItemInnerSpacing = ImFloor(ItemInnerSpacing * scale_factor);
+    CellPadding = ImFloor(CellPadding * scale_factor);
+    TouchExtraPadding = ImFloor(TouchExtraPadding * scale_factor);
+    IndentSpacing = ImFloor(IndentSpacing * scale_factor);
+    ColumnsMinSpacing = ImFloor(ColumnsMinSpacing * scale_factor);
+    ScrollbarSize = ImFloor(ScrollbarSize * scale_factor);
+    ScrollbarRounding = ImFloor(ScrollbarRounding * scale_factor);
+    GrabMinSize = ImFloor(GrabMinSize * scale_factor);
+    GrabRounding = ImFloor(GrabRounding * scale_factor);
+    LogSliderDeadzone = ImFloor(LogSliderDeadzone * scale_factor);
+    TabRounding = ImFloor(TabRounding * scale_factor);
+    TabMinWidthForCloseButton = (TabMinWidthForCloseButton != FLT_MAX) ? ImFloor(TabMinWidthForCloseButton * scale_factor) : FLT_MAX;
+    DisplayWindowPadding = ImFloor(DisplayWindowPadding * scale_factor);
+    DisplaySafeAreaPadding = ImFloor(DisplaySafeAreaPadding * scale_factor);
+    MouseCursorScale = ImFloor(MouseCursorScale * scale_factor);
+}
+
+ImGuiIO::ImGuiIO()
+{
+    // Most fields are initialized with zero
+    memset(this, 0, sizeof(*this));
+    IM_STATIC_ASSERT(IM_ARRAYSIZE(ImGuiIO::MouseDown) == ImGuiMouseButton_COUNT && IM_ARRAYSIZE(ImGuiIO::MouseClicked) == ImGuiMouseButton_COUNT);
+
+    // Settings
+    ConfigFlags = ImGuiConfigFlags_None;
+    BackendFlags = ImGuiBackendFlags_None;
+    DisplaySize = ImVec2(-1.0f, -1.0f);
+    DeltaTime = 1.0f / 60.0f;
+    IniSavingRate = 5.0f;
+    IniFilename = "imgui.ini"; // Important: "imgui.ini" is relative to current working dir, most apps will want to lock this to an absolute path (e.g. same path as executables).
+    LogFilename = "imgui_log.txt";
+    MouseDoubleClickTime = 0.30f;
+    MouseDoubleClickMaxDist = 6.0f;
+#ifndef IMGUI_DISABLE_OBSOLETE_KEYIO
+    for (int i = 0; i < ImGuiKey_COUNT; i++)
+        KeyMap[i] = -1;
+#endif
+    KeyRepeatDelay = 0.275f;
+    KeyRepeatRate = 0.050f;
+    UserData = NULL;
+
+    Fonts = NULL;
+    FontGlobalScale = 1.0f;
+    FontDefault = NULL;
+    FontAllowUserScaling = false;
+    DisplayFramebufferScale = ImVec2(1.0f, 1.0f);
+
+    // Miscellaneous options
+    MouseDrawCursor = false;
+#ifdef __APPLE__
+    ConfigMacOSXBehaviors = true;  // Set Mac OS X style defaults based on __APPLE__ compile time flag
+#else
+    ConfigMacOSXBehaviors = false;
+#endif
+    ConfigInputTrickleEventQueue = true;
+    ConfigInputTextCursorBlink = true;
+    ConfigWindowsResizeFromEdges = true;
+    ConfigWindowsMoveFromTitleBarOnly = false;
+    ConfigMemoryCompactTimer = 60.0f;
+
+    // Platform Functions
+    BackendPlatformName = BackendRendererName = NULL;
+    BackendPlatformUserData = BackendRendererUserData = BackendLanguageUserData = NULL;
+    GetClipboardTextFn = GetClipboardTextFn_DefaultImpl;   // Platform dependent default implementations
+    SetClipboardTextFn = SetClipboardTextFn_DefaultImpl;
+    ClipboardUserData = NULL;
+    SetPlatformImeDataFn = SetPlatformImeDataFn_DefaultImpl;
+
+    // Input (NB: we already have memset zero the entire structure!)
+    MousePos = ImVec2(-FLT_MAX, -FLT_MAX);
+    MousePosPrev = ImVec2(-FLT_MAX, -FLT_MAX);
+    MouseDragThreshold = 6.0f;
+    for (int i = 0; i < IM_ARRAYSIZE(MouseDownDuration); i++) MouseDownDuration[i] = MouseDownDurationPrev[i] = -1.0f;
+    for (int i = 0; i < IM_ARRAYSIZE(KeysData); i++) { KeysData[i].DownDuration = KeysData[i].DownDurationPrev = -1.0f; }
+    for (int i = 0; i < IM_ARRAYSIZE(NavInputsDownDuration); i++) NavInputsDownDuration[i] = -1.0f;
+    AppAcceptingEvents = true;
+    BackendUsingLegacyKeyArrays = (ImS8)-1;
+    BackendUsingLegacyNavInputArray = true; // assume using legacy array until proven wrong
+}
+
+// Pass in translated ASCII characters for text input.
+// - with glfw you can get those from the callback set in glfwSetCharCallback()
+// - on Windows you can get those using ToAscii+keyboard state, or via the WM_CHAR message
+// FIXME: Should in theory be called "AddCharacterEvent()" to be consistent with new API
+void ImGuiIO::AddInputCharacter(unsigned int c)
+{
+    ImGuiContext& g = *GImGui;
+    IM_ASSERT(&g.IO == this && "Can only add events to current context.");
+    if (c == 0 || !AppAcceptingEvents)
+        return;
+
+    ImGuiInputEvent e;
+    e.Type = ImGuiInputEventType_Text;
+    e.Source = ImGuiInputSource_Keyboard;
+    e.Text.Char = c;
+    g.InputEventsQueue.push_back(e);
+}
+
+// UTF16 strings use surrogate pairs to encode codepoints >= 0x10000, so
+// we should save the high surrogate.
+void ImGuiIO::AddInputCharacterUTF16(ImWchar16 c)
+{
+    if ((c == 0 && InputQueueSurrogate == 0) || !AppAcceptingEvents)
+        return;
+
+    if ((c & 0xFC00) == 0xD800) // High surrogate, must save
+    {
+        if (InputQueueSurrogate != 0)
+            AddInputCharacter(IM_UNICODE_CODEPOINT_INVALID);
+        InputQueueSurrogate = c;
+        return;
+    }
+
+    ImWchar cp = c;
+    if (InputQueueSurrogate != 0)
+    {
+        if ((c & 0xFC00) != 0xDC00) // Invalid low surrogate
+        {
+            AddInputCharacter(IM_UNICODE_CODEPOINT_INVALID);
+        }
+        else
+        {
+#if IM_UNICODE_CODEPOINT_MAX == 0xFFFF
+            cp = IM_UNICODE_CODEPOINT_INVALID; // Codepoint will not fit in ImWchar
+#else
+            cp = (ImWchar)(((InputQueueSurrogate - 0xD800) << 10) + (c - 0xDC00) + 0x10000);
+#endif
+        }
+
+        InputQueueSurrogate = 0;
+    }
+    AddInputCharacter((unsigned)cp);
+}
+
+void ImGuiIO::AddInputCharactersUTF8(const char* utf8_chars)
+{
+    if (!AppAcceptingEvents)
+        return;
+    while (*utf8_chars != 0)
+    {
+        unsigned int c = 0;
+        utf8_chars += ImTextCharFromUtf8(&c, utf8_chars, NULL);
+        if (c != 0)
+            AddInputCharacter(c);
+    }
+}
+
+void ImGuiIO::ClearInputCharacters()
+{
+    InputQueueCharacters.resize(0);
+}
+
+void ImGuiIO::ClearInputKeys()
+{
+#ifndef IMGUI_DISABLE_OBSOLETE_KEYIO
+    memset(KeysDown, 0, sizeof(KeysDown));
+#endif
+    for (int n = 0; n < IM_ARRAYSIZE(KeysData); n++)
+    {
+        KeysData[n].Down             = false;
+        KeysData[n].DownDuration     = -1.0f;
+        KeysData[n].DownDurationPrev = -1.0f;
+    }
+    KeyCtrl = KeyShift = KeyAlt = KeySuper = false;
+    KeyMods = ImGuiModFlags_None;
+    for (int n = 0; n < IM_ARRAYSIZE(NavInputsDownDuration); n++)
+        NavInputsDownDuration[n] = NavInputsDownDurationPrev[n] = -1.0f;
+}
+
+// Queue a new key down/up event.
+// - ImGuiKey key:       Translated key (as in, generally ImGuiKey_A matches the key end-user would use to emit an 'A' character)
+// - bool down:          Is the key down? use false to signify a key release.
+// - float analog_value: 0.0f..1.0f
+void ImGuiIO::AddKeyAnalogEvent(ImGuiKey key, bool down, float analog_value)
+{
+    //if (e->Down) { IMGUI_DEBUG_LOG_IO("AddKeyEvent() Key='%s' %d, NativeKeycode = %d, NativeScancode = %d\n", ImGui::GetKeyName(e->Key), e->Down, e->NativeKeycode, e->NativeScancode); }
+    if (key == ImGuiKey_None || !AppAcceptingEvents)
+        return;
+    ImGuiContext& g = *GImGui;
+    IM_ASSERT(&g.IO == this && "Can only add events to current context.");
+    IM_ASSERT(ImGui::IsNamedKey(key)); // Backend needs to pass a valid ImGuiKey_ constant. 0..511 values are legacy native key codes which are not accepted by this API.
+
+    // Verify that backend isn't mixing up using new io.AddKeyEvent() api and old io.KeysDown[] + io.KeyMap[] data.
+#ifndef IMGUI_DISABLE_OBSOLETE_KEYIO
+    IM_ASSERT((BackendUsingLegacyKeyArrays == -1 || BackendUsingLegacyKeyArrays == 0) && "Backend needs to either only use io.AddKeyEvent(), either only fill legacy io.KeysDown[] + io.KeyMap[]. Not both!");
+    if (BackendUsingLegacyKeyArrays == -1)
+        for (int n = ImGuiKey_NamedKey_BEGIN; n < ImGuiKey_NamedKey_END; n++)
+            IM_ASSERT(KeyMap[n] == -1 && "Backend needs to either only use io.AddKeyEvent(), either only fill legacy io.KeysDown[] + io.KeyMap[]. Not both!");
+    BackendUsingLegacyKeyArrays = 0;
+#endif
+    if (ImGui::IsGamepadKey(key))
+        BackendUsingLegacyNavInputArray = false;
+
+    // Partial filter of duplicates (not strictly needed, but makes data neater in particular for key mods and gamepad values which are most commonly spmamed)
+    ImGuiKeyData* key_data = ImGui::GetKeyData(key);
+    if (key_data->Down == down && key_data->AnalogValue == analog_value)
+    {
+        bool found = false;
+        for (int n = g.InputEventsQueue.Size - 1; n >= 0 && !found; n--)
+            if (g.InputEventsQueue[n].Type == ImGuiInputEventType_Key && g.InputEventsQueue[n].Key.Key == key)
+                found = true;
+        if (!found)
+            return;
+    }
+
+    // Add event
+    ImGuiInputEvent e;
+    e.Type = ImGuiInputEventType_Key;
+    e.Source = ImGui::IsGamepadKey(key) ? ImGuiInputSource_Gamepad : ImGuiInputSource_Keyboard;
+    e.Key.Key = key;
+    e.Key.Down = down;
+    e.Key.AnalogValue = analog_value;
+    g.InputEventsQueue.push_back(e);
+}
+
+void ImGuiIO::AddKeyEvent(ImGuiKey key, bool down)
+{
+    if (!AppAcceptingEvents)
+        return;
+    AddKeyAnalogEvent(key, down, down ? 1.0f : 0.0f);
+}
+
+// [Optional] Call after AddKeyEvent().
+// Specify native keycode, scancode + Specify index for legacy <1.87 IsKeyXXX() functions with native indices.
+// If you are writing a backend in 2022 or don't use IsKeyXXX() with native values that are not ImGuiKey values, you can avoid calling this.
+void ImGuiIO::SetKeyEventNativeData(ImGuiKey key, int native_keycode, int native_scancode, int native_legacy_index)
+{
+    if (key == ImGuiKey_None)
+        return;
+    IM_ASSERT(ImGui::IsNamedKey(key)); // >= 512
+    IM_ASSERT(native_legacy_index == -1 || ImGui::IsLegacyKey(native_legacy_index)); // >= 0 && <= 511
+    IM_UNUSED(native_keycode);  // Yet unused
+    IM_UNUSED(native_scancode); // Yet unused
+
+    // Build native->imgui map so old user code can still call key functions with native 0..511 values.
+#ifndef IMGUI_DISABLE_OBSOLETE_KEYIO
+    const int legacy_key = (native_legacy_index != -1) ? native_legacy_index : native_keycode;
+    if (!ImGui::IsLegacyKey(legacy_key))
+        return;
+    KeyMap[legacy_key] = key;
+    KeyMap[key] = legacy_key;
+#else
+    IM_UNUSED(key);
+    IM_UNUSED(native_legacy_index);
+#endif
+}
+
+// Set master flag for accepting key/mouse/text events (default to true). Useful if you have native dialog boxes that are interrupting your application loop/refresh, and you want to disable events being queued while your app is frozen.
+void ImGuiIO::SetAppAcceptingEvents(bool accepting_events)
+{
+    AppAcceptingEvents = accepting_events;
+}
+
+// Queue a mouse move event
+void ImGuiIO::AddMousePosEvent(float x, float y)
+{
+    ImGuiContext& g = *GImGui;
+    IM_ASSERT(&g.IO == this && "Can only add events to current context.");
+    if (!AppAcceptingEvents)
+        return;
+
+    ImGuiInputEvent e;
+    e.Type = ImGuiInputEventType_MousePos;
+    e.Source = ImGuiInputSource_Mouse;
+    e.MousePos.PosX = x;
+    e.MousePos.PosY = y;
+    g.InputEventsQueue.push_back(e);
+}
+
+void ImGuiIO::AddMouseButtonEvent(int mouse_button, bool down)
+{
+    ImGuiContext& g = *GImGui;
+    IM_ASSERT(&g.IO == this && "Can only add events to current context.");
+    IM_ASSERT(mouse_button >= 0 && mouse_button < ImGuiMouseButton_COUNT);
+    if (!AppAcceptingEvents)
+        return;
+
+    ImGuiInputEvent e;
+    e.Type = ImGuiInputEventType_MouseButton;
+    e.Source = ImGuiInputSource_Mouse;
+    e.MouseButton.Button = mouse_button;
+    e.MouseButton.Down = down;
+    g.InputEventsQueue.push_back(e);
+}
+
+// Queue a mouse wheel event (most mouse/API will only have a Y component)
+void ImGuiIO::AddMouseWheelEvent(float wheel_x, float wheel_y)
+{
+    ImGuiContext& g = *GImGui;
+    IM_ASSERT(&g.IO == this && "Can only add events to current context.");
+    if ((wheel_x == 0.0f && wheel_y == 0.0f) || !AppAcceptingEvents)
+        return;
+
+    ImGuiInputEvent e;
+    e.Type = ImGuiInputEventType_MouseWheel;
+    e.Source = ImGuiInputSource_Mouse;
+    e.MouseWheel.WheelX = wheel_x;
+    e.MouseWheel.WheelY = wheel_y;
+    g.InputEventsQueue.push_back(e);
+}
+
+void ImGuiIO::AddFocusEvent(bool focused)
+{
+    ImGuiContext& g = *GImGui;
+    IM_ASSERT(&g.IO == this && "Can only add events to current context.");
+
+    ImGuiInputEvent e;
+    e.Type = ImGuiInputEventType_Focus;
+    e.AppFocused.Focused = focused;
+    g.InputEventsQueue.push_back(e);
+}
+
+//-----------------------------------------------------------------------------
+// [SECTION] MISC HELPERS/UTILITIES (Geometry functions)
+//-----------------------------------------------------------------------------
+
+ImVec2 ImBezierCubicClosestPoint(const ImVec2& p1, const ImVec2& p2, const ImVec2& p3, const ImVec2& p4, const ImVec2& p, int num_segments)
+{
+    IM_ASSERT(num_segments > 0); // Use ImBezierCubicClosestPointCasteljau()
+    ImVec2 p_last = p1;
+    ImVec2 p_closest;
+    float p_closest_dist2 = FLT_MAX;
+    float t_step = 1.0f / (float)num_segments;
+    for (int i_step = 1; i_step <= num_segments; i_step++)
+    {
+        ImVec2 p_current = ImBezierCubicCalc(p1, p2, p3, p4, t_step * i_step);
+        ImVec2 p_line = ImLineClosestPoint(p_last, p_current, p);
+        float dist2 = ImLengthSqr(p - p_line);
+        if (dist2 < p_closest_dist2)
+        {
+            p_closest = p_line;
+            p_closest_dist2 = dist2;
+        }
+        p_last = p_current;
+    }
+    return p_closest;
+}
+
+// Closely mimics PathBezierToCasteljau() in imgui_draw.cpp
+static void ImBezierCubicClosestPointCasteljauStep(const ImVec2& p, ImVec2& p_closest, ImVec2& p_last, float& p_closest_dist2, float x1, float y1, float x2, float y2, float x3, float y3, float x4, float y4, float tess_tol, int level)
+{
+    float dx = x4 - x1;
+    float dy = y4 - y1;
+    float d2 = ((x2 - x4) * dy - (y2 - y4) * dx);
+    float d3 = ((x3 - x4) * dy - (y3 - y4) * dx);
+    d2 = (d2 >= 0) ? d2 : -d2;
+    d3 = (d3 >= 0) ? d3 : -d3;
+    if ((d2 + d3) * (d2 + d3) < tess_tol * (dx * dx + dy * dy))
+    {
+        ImVec2 p_current(x4, y4);
+        ImVec2 p_line = ImLineClosestPoint(p_last, p_current, p);
+        float dist2 = ImLengthSqr(p - p_line);
+        if (dist2 < p_closest_dist2)
+        {
+            p_closest = p_line;
+            p_closest_dist2 = dist2;
+        }
+        p_last = p_current;
+    }
+    else if (level < 10)
+    {
+        float x12 = (x1 + x2)*0.5f,       y12 = (y1 + y2)*0.5f;
+        float x23 = (x2 + x3)*0.5f,       y23 = (y2 + y3)*0.5f;
+        float x34 = (x3 + x4)*0.5f,       y34 = (y3 + y4)*0.5f;
+        float x123 = (x12 + x23)*0.5f,    y123 = (y12 + y23)*0.5f;
+        float x234 = (x23 + x34)*0.5f,    y234 = (y23 + y34)*0.5f;
+        float x1234 = (x123 + x234)*0.5f, y1234 = (y123 + y234)*0.5f;
+        ImBezierCubicClosestPointCasteljauStep(p, p_closest, p_last, p_closest_dist2, x1, y1, x12, y12, x123, y123, x1234, y1234, tess_tol, level + 1);
+        ImBezierCubicClosestPointCasteljauStep(p, p_closest, p_last, p_closest_dist2, x1234, y1234, x234, y234, x34, y34, x4, y4, tess_tol, level + 1);
+    }
+}
+
+// tess_tol is generally the same value you would find in ImGui::GetStyle().CurveTessellationTol
+// Because those ImXXX functions are lower-level than ImGui:: we cannot access this value automatically.
+ImVec2 ImBezierCubicClosestPointCasteljau(const ImVec2& p1, const ImVec2& p2, const ImVec2& p3, const ImVec2& p4, const ImVec2& p, float tess_tol)
+{
+    IM_ASSERT(tess_tol > 0.0f);
+    ImVec2 p_last = p1;
+    ImVec2 p_closest;
+    float p_closest_dist2 = FLT_MAX;
+    ImBezierCubicClosestPointCasteljauStep(p, p_closest, p_last, p_closest_dist2, p1.x, p1.y, p2.x, p2.y, p3.x, p3.y, p4.x, p4.y, tess_tol, 0);
+    return p_closest;
+}
+
+ImVec2 ImLineClosestPoint(const ImVec2& a, const ImVec2& b, const ImVec2& p)
+{
+    ImVec2 ap = p - a;
+    ImVec2 ab_dir = b - a;
+    float dot = ap.x * ab_dir.x + ap.y * ab_dir.y;
+    if (dot < 0.0f)
+        return a;
+    float ab_len_sqr = ab_dir.x * ab_dir.x + ab_dir.y * ab_dir.y;
+    if (dot > ab_len_sqr)
+        return b;
+    return a + ab_dir * dot / ab_len_sqr;
+}
+
+bool ImTriangleContainsPoint(const ImVec2& a, const ImVec2& b, const ImVec2& c, const ImVec2& p)
+{
+    bool b1 = ((p.x - b.x) * (a.y - b.y) - (p.y - b.y) * (a.x - b.x)) < 0.0f;
+    bool b2 = ((p.x - c.x) * (b.y - c.y) - (p.y - c.y) * (b.x - c.x)) < 0.0f;
+    bool b3 = ((p.x - a.x) * (c.y - a.y) - (p.y - a.y) * (c.x - a.x)) < 0.0f;
+    return ((b1 == b2) && (b2 == b3));
+}
+
+void ImTriangleBarycentricCoords(const ImVec2& a, const ImVec2& b, const ImVec2& c, const ImVec2& p, float& out_u, float& out_v, float& out_w)
+{
+    ImVec2 v0 = b - a;
+    ImVec2 v1 = c - a;
+    ImVec2 v2 = p - a;
+    const float denom = v0.x * v1.y - v1.x * v0.y;
+    out_v = (v2.x * v1.y - v1.x * v2.y) / denom;
+    out_w = (v0.x * v2.y - v2.x * v0.y) / denom;
+    out_u = 1.0f - out_v - out_w;
+}
+
+ImVec2 ImTriangleClosestPoint(const ImVec2& a, const ImVec2& b, const ImVec2& c, const ImVec2& p)
+{
+    ImVec2 proj_ab = ImLineClosestPoint(a, b, p);
+    ImVec2 proj_bc = ImLineClosestPoint(b, c, p);
+    ImVec2 proj_ca = ImLineClosestPoint(c, a, p);
+    float dist2_ab = ImLengthSqr(p - proj_ab);
+    float dist2_bc = ImLengthSqr(p - proj_bc);
+    float dist2_ca = ImLengthSqr(p - proj_ca);
+    float m = ImMin(dist2_ab, ImMin(dist2_bc, dist2_ca));
+    if (m == dist2_ab)
+        return proj_ab;
+    if (m == dist2_bc)
+        return proj_bc;
+    return proj_ca;
+}
+
+//-----------------------------------------------------------------------------
+// [SECTION] MISC HELPERS/UTILITIES (String, Format, Hash functions)
+//-----------------------------------------------------------------------------
+
+// Consider using _stricmp/_strnicmp under Windows or strcasecmp/strncasecmp. We don't actually use either ImStricmp/ImStrnicmp in the codebase any more.
+int ImStricmp(const char* str1, const char* str2)
+{
+    int d;
+    while ((d = toupper(*str2) - toupper(*str1)) == 0 && *str1) { str1++; str2++; }
+    return d;
+}
+
+int ImStrnicmp(const char* str1, const char* str2, size_t count)
+{
+    int d = 0;
+    while (count > 0 && (d = toupper(*str2) - toupper(*str1)) == 0 && *str1) { str1++; str2++; count--; }
+    return d;
+}
+
+void ImStrncpy(char* dst, const char* src, size_t count)
+{
+    if (count < 1)
+        return;
+    if (count > 1)
+        strncpy(dst, src, count - 1);
+    dst[count - 1] = 0;
+}
+
+char* ImStrdup(const char* str)
+{
+    size_t len = strlen(str);
+    void* buf = IM_ALLOC(len + 1);
+    return (char*)memcpy(buf, (const void*)str, len + 1);
+}
+
+char* ImStrdupcpy(char* dst, size_t* p_dst_size, const char* src)
+{
+    size_t dst_buf_size = p_dst_size ? *p_dst_size : strlen(dst) + 1;
+    size_t src_size = strlen(src) + 1;
+    if (dst_buf_size < src_size)
+    {
+        IM_FREE(dst);
+        dst = (char*)IM_ALLOC(src_size);
+        if (p_dst_size)
+            *p_dst_size = src_size;
+    }
+    return (char*)memcpy(dst, (const void*)src, src_size);
+}
+
+const char* ImStrchrRange(const char* str, const char* str_end, char c)
+{
+    const char* p = (const char*)memchr(str, (int)c, str_end - str);
+    return p;
+}
+
+int ImStrlenW(const ImWchar* str)
+{
+    //return (int)wcslen((const wchar_t*)str);  // FIXME-OPT: Could use this when wchar_t are 16-bit
+    int n = 0;
+    while (*str++) n++;
+    return n;
+}
+
+// Find end-of-line. Return pointer will point to either first \n, either str_end.
+const char* ImStreolRange(const char* str, const char* str_end)
+{
+    const char* p = (const char*)memchr(str, '\n', str_end - str);
+    return p ? p : str_end;
+}
+
+const ImWchar* ImStrbolW(const ImWchar* buf_mid_line, const ImWchar* buf_begin) // find beginning-of-line
+{
+    while (buf_mid_line > buf_begin && buf_mid_line[-1] != '\n')
+        buf_mid_line--;
+    return buf_mid_line;
+}
+
+const char* ImStristr(const char* haystack, const char* haystack_end, const char* needle, const char* needle_end)
+{
+    if (!needle_end)
+        needle_end = needle + strlen(needle);
+
+    const char un0 = (char)toupper(*needle);
+    while ((!haystack_end && *haystack) || (haystack_end && haystack < haystack_end))
+    {
+        if (toupper(*haystack) == un0)
+        {
+            const char* b = needle + 1;
+            for (const char* a = haystack + 1; b < needle_end; a++, b++)
+                if (toupper(*a) != toupper(*b))
+                    break;
+            if (b == needle_end)
+                return haystack;
+        }
+        haystack++;
+    }
+    return NULL;
+}
+
+// Trim str by offsetting contents when there's leading data + writing a \0 at the trailing position. We use this in situation where the cost is negligible.
+void ImStrTrimBlanks(char* buf)
+{
+    char* p = buf;
+    while (p[0] == ' ' || p[0] == '\t')     // Leading blanks
+        p++;
+    char* p_start = p;
+    while (*p != 0)                         // Find end of string
+        p++;
+    while (p > p_start && (p[-1] == ' ' || p[-1] == '\t'))  // Trailing blanks
+        p--;
+    if (p_start != buf)                     // Copy memory if we had leading blanks
+        memmove(buf, p_start, p - p_start);
+    buf[p - p_start] = 0;                   // Zero terminate
+}
+
+const char* ImStrSkipBlank(const char* str)
+{
+    while (str[0] == ' ' || str[0] == '\t')
+        str++;
+    return str;
+}
+
+// A) MSVC version appears to return -1 on overflow, whereas glibc appears to return total count (which may be >= buf_size).
+// Ideally we would test for only one of those limits at runtime depending on the behavior the vsnprintf(), but trying to deduct it at compile time sounds like a pandora can of worm.
+// B) When buf==NULL vsnprintf() will return the output size.
+#ifndef IMGUI_DISABLE_DEFAULT_FORMAT_FUNCTIONS
+
+// We support stb_sprintf which is much faster (see: https://github.com/nothings/stb/blob/master/stb_sprintf.h)
+// You may set IMGUI_USE_STB_SPRINTF to use our default wrapper, or set IMGUI_DISABLE_DEFAULT_FORMAT_FUNCTIONS
+// and setup the wrapper yourself. (FIXME-OPT: Some of our high-level operations such as ImGuiTextBuffer::appendfv() are
+// designed using two-passes worst case, which probably could be improved using the stbsp_vsprintfcb() function.)
+#ifdef IMGUI_USE_STB_SPRINTF
+#define STB_SPRINTF_IMPLEMENTATION
+#ifdef IMGUI_STB_SPRINTF_FILENAME
+#include IMGUI_STB_SPRINTF_FILENAME
+#else
+#include "stb_sprintf.h"
+#endif
+#endif
+
+#if defined(_MSC_VER) && !defined(vsnprintf)
+#define vsnprintf _vsnprintf
+#endif
+
+int ImFormatString(char* buf, size_t buf_size, const char* fmt, ...)
+{
+    va_list args;
+    va_start(args, fmt);
+#ifdef IMGUI_USE_STB_SPRINTF
+    int w = stbsp_vsnprintf(buf, (int)buf_size, fmt, args);
+#else
+    int w = vsnprintf(buf, buf_size, fmt, args);
+#endif
+    va_end(args);
+    if (buf == NULL)
+        return w;
+    if (w == -1 || w >= (int)buf_size)
+        w = (int)buf_size - 1;
+    buf[w] = 0;
+    return w;
+}
+
+int ImFormatStringV(char* buf, size_t buf_size, const char* fmt, va_list args)
+{
+#ifdef IMGUI_USE_STB_SPRINTF
+    int w = stbsp_vsnprintf(buf, (int)buf_size, fmt, args);
+#else
+    int w = vsnprintf(buf, buf_size, fmt, args);
+#endif
+    if (buf == NULL)
+        return w;
+    if (w == -1 || w >= (int)buf_size)
+        w = (int)buf_size - 1;
+    buf[w] = 0;
+    return w;
+}
+#endif // #ifdef IMGUI_DISABLE_DEFAULT_FORMAT_FUNCTIONS
+
+void ImFormatStringToTempBuffer(const char** out_buf, const char** out_buf_end, const char* fmt, ...)
+{
+    ImGuiContext& g = *GImGui;
+    va_list args;
+    va_start(args, fmt);
+    int buf_len = ImFormatStringV(g.TempBuffer.Data, g.TempBuffer.Size, fmt, args);
+    *out_buf = g.TempBuffer.Data;
+    if (out_buf_end) { *out_buf_end = g.TempBuffer.Data + buf_len; }
+    va_end(args);
+}
+
+void ImFormatStringToTempBufferV(const char** out_buf, const char** out_buf_end, const char* fmt, va_list args)
+{
+    ImGuiContext& g = *GImGui;
+    int buf_len = ImFormatStringV(g.TempBuffer.Data, g.TempBuffer.Size, fmt, args);
+    *out_buf = g.TempBuffer.Data;
+    if (out_buf_end) { *out_buf_end = g.TempBuffer.Data + buf_len; }
+}
+
+// CRC32 needs a 1KB lookup table (not cache friendly)
+// Although the code to generate the table is simple and shorter than the table itself, using a const table allows us to easily:
+// - avoid an unnecessary branch/memory tap, - keep the ImHashXXX functions usable by static constructors, - make it thread-safe.
+static const ImU32 GCrc32LookupTable[256] =
+{
+    0x00000000,0x77073096,0xEE0E612C,0x990951BA,0x076DC419,0x706AF48F,0xE963A535,0x9E6495A3,0x0EDB8832,0x79DCB8A4,0xE0D5E91E,0x97D2D988,0x09B64C2B,0x7EB17CBD,0xE7B82D07,0x90BF1D91,
+    0x1DB71064,0x6AB020F2,0xF3B97148,0x84BE41DE,0x1ADAD47D,0x6DDDE4EB,0xF4D4B551,0x83D385C7,0x136C9856,0x646BA8C0,0xFD62F97A,0x8A65C9EC,0x14015C4F,0x63066CD9,0xFA0F3D63,0x8D080DF5,
+    0x3B6E20C8,0x4C69105E,0xD56041E4,0xA2677172,0x3C03E4D1,0x4B04D447,0xD20D85FD,0xA50AB56B,0x35B5A8FA,0x42B2986C,0xDBBBC9D6,0xACBCF940,0x32D86CE3,0x45DF5C75,0xDCD60DCF,0xABD13D59,
+    0x26D930AC,0x51DE003A,0xC8D75180,0xBFD06116,0x21B4F4B5,0x56B3C423,0xCFBA9599,0xB8BDA50F,0x2802B89E,0x5F058808,0xC60CD9B2,0xB10BE924,0x2F6F7C87,0x58684C11,0xC1611DAB,0xB6662D3D,
+    0x76DC4190,0x01DB7106,0x98D220BC,0xEFD5102A,0x71B18589,0x06B6B51F,0x9FBFE4A5,0xE8B8D433,0x7807C9A2,0x0F00F934,0x9609A88E,0xE10E9818,0x7F6A0DBB,0x086D3D2D,0x91646C97,0xE6635C01,
+    0x6B6B51F4,0x1C6C6162,0x856530D8,0xF262004E,0x6C0695ED,0x1B01A57B,0x8208F4C1,0xF50FC457,0x65B0D9C6,0x12B7E950,0x8BBEB8EA,0xFCB9887C,0x62DD1DDF,0x15DA2D49,0x8CD37CF3,0xFBD44C65,
+    0x4DB26158,0x3AB551CE,0xA3BC0074,0xD4BB30E2,0x4ADFA541,0x3DD895D7,0xA4D1C46D,0xD3D6F4FB,0x4369E96A,0x346ED9FC,0xAD678846,0xDA60B8D0,0x44042D73,0x33031DE5,0xAA0A4C5F,0xDD0D7CC9,
+    0x5005713C,0x270241AA,0xBE0B1010,0xC90C2086,0x5768B525,0x206F85B3,0xB966D409,0xCE61E49F,0x5EDEF90E,0x29D9C998,0xB0D09822,0xC7D7A8B4,0x59B33D17,0x2EB40D81,0xB7BD5C3B,0xC0BA6CAD,
+    0xEDB88320,0x9ABFB3B6,0x03B6E20C,0x74B1D29A,0xEAD54739,0x9DD277AF,0x04DB2615,0x73DC1683,0xE3630B12,0x94643B84,0x0D6D6A3E,0x7A6A5AA8,0xE40ECF0B,0x9309FF9D,0x0A00AE27,0x7D079EB1,
+    0xF00F9344,0x8708A3D2,0x1E01F268,0x6906C2FE,0xF762575D,0x806567CB,0x196C3671,0x6E6B06E7,0xFED41B76,0x89D32BE0,0x10DA7A5A,0x67DD4ACC,0xF9B9DF6F,0x8EBEEFF9,0x17B7BE43,0x60B08ED5,
+    0xD6D6A3E8,0xA1D1937E,0x38D8C2C4,0x4FDFF252,0xD1BB67F1,0xA6BC5767,0x3FB506DD,0x48B2364B,0xD80D2BDA,0xAF0A1B4C,0x36034AF6,0x41047A60,0xDF60EFC3,0xA867DF55,0x316E8EEF,0x4669BE79,
+    0xCB61B38C,0xBC66831A,0x256FD2A0,0x5268E236,0xCC0C7795,0xBB0B4703,0x220216B9,0x5505262F,0xC5BA3BBE,0xB2BD0B28,0x2BB45A92,0x5CB36A04,0xC2D7FFA7,0xB5D0CF31,0x2CD99E8B,0x5BDEAE1D,
+    0x9B64C2B0,0xEC63F226,0x756AA39C,0x026D930A,0x9C0906A9,0xEB0E363F,0x72076785,0x05005713,0x95BF4A82,0xE2B87A14,0x7BB12BAE,0x0CB61B38,0x92D28E9B,0xE5D5BE0D,0x7CDCEFB7,0x0BDBDF21,
+    0x86D3D2D4,0xF1D4E242,0x68DDB3F8,0x1FDA836E,0x81BE16CD,0xF6B9265B,0x6FB077E1,0x18B74777,0x88085AE6,0xFF0F6A70,0x66063BCA,0x11010B5C,0x8F659EFF,0xF862AE69,0x616BFFD3,0x166CCF45,
+    0xA00AE278,0xD70DD2EE,0x4E048354,0x3903B3C2,0xA7672661,0xD06016F7,0x4969474D,0x3E6E77DB,0xAED16A4A,0xD9D65ADC,0x40DF0B66,0x37D83BF0,0xA9BCAE53,0xDEBB9EC5,0x47B2CF7F,0x30B5FFE9,
+    0xBDBDF21C,0xCABAC28A,0x53B39330,0x24B4A3A6,0xBAD03605,0xCDD70693,0x54DE5729,0x23D967BF,0xB3667A2E,0xC4614AB8,0x5D681B02,0x2A6F2B94,0xB40BBE37,0xC30C8EA1,0x5A05DF1B,0x2D02EF8D,
+};
+
+// Known size hash
+// It is ok to call ImHashData on a string with known length but the ### operator won't be supported.
+// FIXME-OPT: Replace with e.g. FNV1a hash? CRC32 pretty much randomly access 1KB. Need to do proper measurements.
+ImGuiID ImHashData(const void* data_p, size_t data_size, ImU32 seed)
+{
+    ImU32 crc = ~seed;
+    const unsigned char* data = (const unsigned char*)data_p;
+    const ImU32* crc32_lut = GCrc32LookupTable;
+    while (data_size-- != 0)
+        crc = (crc >> 8) ^ crc32_lut[(crc & 0xFF) ^ *data++];
+    return ~crc;
+}
+
+// Zero-terminated string hash, with support for ### to reset back to seed value
+// We support a syntax of "label###id" where only "###id" is included in the hash, and only "label" gets displayed.
+// Because this syntax is rarely used we are optimizing for the common case.
+// - If we reach ### in the string we discard the hash so far and reset to the seed.
+// - We don't do 'current += 2; continue;' after handling ### to keep the code smaller/faster (measured ~10% diff in Debug build)
+// FIXME-OPT: Replace with e.g. FNV1a hash? CRC32 pretty much randomly access 1KB. Need to do proper measurements.
+ImGuiID ImHashStr(const char* data_p, size_t data_size, ImU32 seed)
+{
+    seed = ~seed;
+    ImU32 crc = seed;
+    const unsigned char* data = (const unsigned char*)data_p;
+    const ImU32* crc32_lut = GCrc32LookupTable;
+    if (data_size != 0)
+    {
+        while (data_size-- != 0)
+        {
+            unsigned char c = *data++;
+            if (c == '#' && data_size >= 2 && data[0] == '#' && data[1] == '#')
+                crc = seed;
+            crc = (crc >> 8) ^ crc32_lut[(crc & 0xFF) ^ c];
+        }
+    }
+    else
+    {
+        while (unsigned char c = *data++)
+        {
+            if (c == '#' && data[0] == '#' && data[1] == '#')
+                crc = seed;
+            crc = (crc >> 8) ^ crc32_lut[(crc & 0xFF) ^ c];
+        }
+    }
+    return ~crc;
+}
+
+//-----------------------------------------------------------------------------
+// [SECTION] MISC HELPERS/UTILITIES (File functions)
+//-----------------------------------------------------------------------------
+
+// Default file functions
+#ifndef IMGUI_DISABLE_DEFAULT_FILE_FUNCTIONS
+
+ImFileHandle ImFileOpen(const char* filename, const char* mode)
+{
+#if defined(_WIN32) && !defined(IMGUI_DISABLE_WIN32_FUNCTIONS) && !defined(__CYGWIN__) && !defined(__GNUC__)
+    // We need a fopen() wrapper because MSVC/Windows fopen doesn't handle UTF-8 filenames.
+    // Previously we used ImTextCountCharsFromUtf8/ImTextStrFromUtf8 here but we now need to support ImWchar16 and ImWchar32!
+    const int filename_wsize = ::MultiByteToWideChar(CP_UTF8, 0, filename, -1, NULL, 0);
+    const int mode_wsize = ::MultiByteToWideChar(CP_UTF8, 0, mode, -1, NULL, 0);
+    ImVector<ImWchar> buf;
+    buf.resize(filename_wsize + mode_wsize);
+    ::MultiByteToWideChar(CP_UTF8, 0, filename, -1, (wchar_t*)&buf[0], filename_wsize);
+    ::MultiByteToWideChar(CP_UTF8, 0, mode, -1, (wchar_t*)&buf[filename_wsize], mode_wsize);
+    return ::_wfopen((const wchar_t*)&buf[0], (const wchar_t*)&buf[filename_wsize]);
+#else
+    return fopen(filename, mode);
+#endif
+}
+
+// We should in theory be using fseeko()/ftello() with off_t and _fseeki64()/_ftelli64() with __int64, waiting for the PR that does that in a very portable pre-C++11 zero-warnings way.
+bool    ImFileClose(ImFileHandle f)     { return fclose(f) == 0; }
+ImU64   ImFileGetSize(ImFileHandle f)   { long off = 0, sz = 0; return ((off = ftell(f)) != -1 && !fseek(f, 0, SEEK_END) && (sz = ftell(f)) != -1 && !fseek(f, off, SEEK_SET)) ? (ImU64)sz : (ImU64)-1; }
+ImU64   ImFileRead(void* data, ImU64 sz, ImU64 count, ImFileHandle f)           { return fread(data, (size_t)sz, (size_t)count, f); }
+ImU64   ImFileWrite(const void* data, ImU64 sz, ImU64 count, ImFileHandle f)    { return fwrite(data, (size_t)sz, (size_t)count, f); }
+#endif // #ifndef IMGUI_DISABLE_DEFAULT_FILE_FUNCTIONS
+
+// Helper: Load file content into memory
+// Memory allocated with IM_ALLOC(), must be freed by user using IM_FREE() == ImGui::MemFree()
+// This can't really be used with "rt" because fseek size won't match read size.
+void*   ImFileLoadToMemory(const char* filename, const char* mode, size_t* out_file_size, int padding_bytes)
+{
+    IM_ASSERT(filename && mode);
+    if (out_file_size)
+        *out_file_size = 0;
+
+    ImFileHandle f;
+    if ((f = ImFileOpen(filename, mode)) == NULL)
+        return NULL;
+
+    size_t file_size = (size_t)ImFileGetSize(f);
+    if (file_size == (size_t)-1)
+    {
+        ImFileClose(f);
+        return NULL;
+    }
+
+    void* file_data = IM_ALLOC(file_size + padding_bytes);
+    if (file_data == NULL)
+    {
+        ImFileClose(f);
+        return NULL;
+    }
+    if (ImFileRead(file_data, 1, file_size, f) != file_size)
+    {
+        ImFileClose(f);
+        IM_FREE(file_data);
+        return NULL;
+    }
+    if (padding_bytes > 0)
+        memset((void*)(((char*)file_data) + file_size), 0, (size_t)padding_bytes);
+
+    ImFileClose(f);
+    if (out_file_size)
+        *out_file_size = file_size;
+
+    return file_data;
+}
+
+//-----------------------------------------------------------------------------
+// [SECTION] MISC HELPERS/UTILITIES (ImText* functions)
+//-----------------------------------------------------------------------------
+
+// Convert UTF-8 to 32-bit character, process single character input.
+// A nearly-branchless UTF-8 decoder, based on work of Christopher Wellons (https://github.com/skeeto/branchless-utf8).
+// We handle UTF-8 decoding error by skipping forward.
+int ImTextCharFromUtf8(unsigned int* out_char, const char* in_text, const char* in_text_end)
+{
+    static const char lengths[32] = { 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 2, 2, 2, 2, 3, 3, 4, 0 };
+    static const int masks[]  = { 0x00, 0x7f, 0x1f, 0x0f, 0x07 };
+    static const uint32_t mins[] = { 0x400000, 0, 0x80, 0x800, 0x10000 };
+    static const int shiftc[] = { 0, 18, 12, 6, 0 };
+    static const int shifte[] = { 0, 6, 4, 2, 0 };
+    int len = lengths[*(const unsigned char*)in_text >> 3];
+    int wanted = len + !len;
+
+    if (in_text_end == NULL)
+        in_text_end = in_text + wanted; // Max length, nulls will be taken into account.
+
+    // Copy at most 'len' bytes, stop copying at 0 or past in_text_end. Branch predictor does a good job here,
+    // so it is fast even with excessive branching.
+    unsigned char s[4];
+    s[0] = in_text + 0 < in_text_end ? in_text[0] : 0;
+    s[1] = in_text + 1 < in_text_end ? in_text[1] : 0;
+    s[2] = in_text + 2 < in_text_end ? in_text[2] : 0;
+    s[3] = in_text + 3 < in_text_end ? in_text[3] : 0;
+
+    // Assume a four-byte character and load four bytes. Unused bits are shifted out.
+    *out_char  = (uint32_t)(s[0] & masks[len]) << 18;
+    *out_char |= (uint32_t)(s[1] & 0x3f) << 12;
+    *out_char |= (uint32_t)(s[2] & 0x3f) <<  6;
+    *out_char |= (uint32_t)(s[3] & 0x3f) <<  0;
+    *out_char >>= shiftc[len];
+
+    // Accumulate the various error conditions.
+    int e = 0;
+    e  = (*out_char < mins[len]) << 6; // non-canonical encoding
+    e |= ((*out_char >> 11) == 0x1b) << 7;  // surrogate half?
+    e |= (*out_char > IM_UNICODE_CODEPOINT_MAX) << 8;  // out of range?
+    e |= (s[1] & 0xc0) >> 2;
+    e |= (s[2] & 0xc0) >> 4;
+    e |= (s[3]       ) >> 6;
+    e ^= 0x2a; // top two bits of each tail byte correct?
+    e >>= shifte[len];
+
+    if (e)
+    {
+        // No bytes are consumed when *in_text == 0 || in_text == in_text_end.
+        // One byte is consumed in case of invalid first byte of in_text.
+        // All available bytes (at most `len` bytes) are consumed on incomplete/invalid second to last bytes.
+        // Invalid or incomplete input may consume less bytes than wanted, therefore every byte has to be inspected in s.
+        wanted = ImMin(wanted, !!s[0] + !!s[1] + !!s[2] + !!s[3]);
+        *out_char = IM_UNICODE_CODEPOINT_INVALID;
+    }
+
+    return wanted;
+}
+
+int ImTextStrFromUtf8(ImWchar* buf, int buf_size, const char* in_text, const char* in_text_end, const char** in_text_remaining)
+{
+    ImWchar* buf_out = buf;
+    ImWchar* buf_end = buf + buf_size;
+    while (buf_out < buf_end - 1 && (!in_text_end || in_text < in_text_end) && *in_text)
+    {
+        unsigned int c;
+        in_text += ImTextCharFromUtf8(&c, in_text, in_text_end);
+        if (c == 0)
+            break;
+        *buf_out++ = (ImWchar)c;
+    }
+    *buf_out = 0;
+    if (in_text_remaining)
+        *in_text_remaining = in_text;
+    return (int)(buf_out - buf);
+}
+
+int ImTextCountCharsFromUtf8(const char* in_text, const char* in_text_end)
+{
+    int char_count = 0;
+    while ((!in_text_end || in_text < in_text_end) && *in_text)
+    {
+        unsigned int c;
+        in_text += ImTextCharFromUtf8(&c, in_text, in_text_end);
+        if (c == 0)
+            break;
+        char_count++;
+    }
+    return char_count;
+}
+
+// Based on stb_to_utf8() from github.com/nothings/stb/
+static inline int ImTextCharToUtf8_inline(char* buf, int buf_size, unsigned int c)
+{
+    if (c < 0x80)
+    {
+        buf[0] = (char)c;
+        return 1;
+    }
+    if (c < 0x800)
+    {
+        if (buf_size < 2) return 0;
+        buf[0] = (char)(0xc0 + (c >> 6));
+        buf[1] = (char)(0x80 + (c & 0x3f));
+        return 2;
+    }
+    if (c < 0x10000)
+    {
+        if (buf_size < 3) return 0;
+        buf[0] = (char)(0xe0 + (c >> 12));
+        buf[1] = (char)(0x80 + ((c >> 6) & 0x3f));
+        buf[2] = (char)(0x80 + ((c ) & 0x3f));
+        return 3;
+    }
+    if (c <= 0x10FFFF)
+    {
+        if (buf_size < 4) return 0;
+        buf[0] = (char)(0xf0 + (c >> 18));
+        buf[1] = (char)(0x80 + ((c >> 12) & 0x3f));
+        buf[2] = (char)(0x80 + ((c >> 6) & 0x3f));
+        buf[3] = (char)(0x80 + ((c ) & 0x3f));
+        return 4;
+    }
+    // Invalid code point, the max unicode is 0x10FFFF
+    return 0;
+}
+
+const char* ImTextCharToUtf8(char out_buf[5], unsigned int c)
+{
+    int count = ImTextCharToUtf8_inline(out_buf, 5, c);
+    out_buf[count] = 0;
+    return out_buf;
+}
+
+// Not optimal but we very rarely use this function.
+int ImTextCountUtf8BytesFromChar(const char* in_text, const char* in_text_end)
+{
+    unsigned int unused = 0;
+    return ImTextCharFromUtf8(&unused, in_text, in_text_end);
+}
+
+static inline int ImTextCountUtf8BytesFromChar(unsigned int c)
+{
+    if (c < 0x80) return 1;
+    if (c < 0x800) return 2;
+    if (c < 0x10000) return 3;
+    if (c <= 0x10FFFF) return 4;
+    return 3;
+}
+
+int ImTextStrToUtf8(char* out_buf, int out_buf_size, const ImWchar* in_text, const ImWchar* in_text_end)
+{
+    char* buf_p = out_buf;
+    const char* buf_end = out_buf + out_buf_size;
+    while (buf_p < buf_end - 1 && (!in_text_end || in_text < in_text_end) && *in_text)
+    {
+        unsigned int c = (unsigned int)(*in_text++);
+        if (c < 0x80)
+            *buf_p++ = (char)c;
+        else
+            buf_p += ImTextCharToUtf8_inline(buf_p, (int)(buf_end - buf_p - 1), c);
+    }
+    *buf_p = 0;
+    return (int)(buf_p - out_buf);
+}
+
+int ImTextCountUtf8BytesFromStr(const ImWchar* in_text, const ImWchar* in_text_end)
+{
+    int bytes_count = 0;
+    while ((!in_text_end || in_text < in_text_end) && *in_text)
+    {
+        unsigned int c = (unsigned int)(*in_text++);
+        if (c < 0x80)
+            bytes_count++;
+        else
+            bytes_count += ImTextCountUtf8BytesFromChar(c);
+    }
+    return bytes_count;
+}
+
+//-----------------------------------------------------------------------------
+// [SECTION] MISC HELPERS/UTILITIES (Color functions)
+// Note: The Convert functions are early design which are not consistent with other API.
+//-----------------------------------------------------------------------------
+
+IMGUI_API ImU32 ImAlphaBlendColors(ImU32 col_a, ImU32 col_b)
+{
+    float t = ((col_b >> IM_COL32_A_SHIFT) & 0xFF) / 255.f;
+    int r = ImLerp((int)(col_a >> IM_COL32_R_SHIFT) & 0xFF, (int)(col_b >> IM_COL32_R_SHIFT) & 0xFF, t);
+    int g = ImLerp((int)(col_a >> IM_COL32_G_SHIFT) & 0xFF, (int)(col_b >> IM_COL32_G_SHIFT) & 0xFF, t);
+    int b = ImLerp((int)(col_a >> IM_COL32_B_SHIFT) & 0xFF, (int)(col_b >> IM_COL32_B_SHIFT) & 0xFF, t);
+    return IM_COL32(r, g, b, 0xFF);
+}
+
+ImVec4 ImGui::ColorConvertU32ToFloat4(ImU32 in)
+{
+    float s = 1.0f / 255.0f;
+    return ImVec4(
+        ((in >> IM_COL32_R_SHIFT) & 0xFF) * s,
+        ((in >> IM_COL32_G_SHIFT) & 0xFF) * s,
+        ((in >> IM_COL32_B_SHIFT) & 0xFF) * s,
+        ((in >> IM_COL32_A_SHIFT) & 0xFF) * s);
+}
+
+ImU32 ImGui::ColorConvertFloat4ToU32(const ImVec4& in)
+{
+    ImU32 out;
+    out  = ((ImU32)IM_F32_TO_INT8_SAT(in.x)) << IM_COL32_R_SHIFT;
+    out |= ((ImU32)IM_F32_TO_INT8_SAT(in.y)) << IM_COL32_G_SHIFT;
+    out |= ((ImU32)IM_F32_TO_INT8_SAT(in.z)) << IM_COL32_B_SHIFT;
+    out |= ((ImU32)IM_F32_TO_INT8_SAT(in.w)) << IM_COL32_A_SHIFT;
+    return out;
+}
+
+// Convert rgb floats ([0-1],[0-1],[0-1]) to hsv floats ([0-1],[0-1],[0-1]), from Foley & van Dam p592
+// Optimized http://lolengine.net/blog/2013/01/13/fast-rgb-to-hsv
+void ImGui::ColorConvertRGBtoHSV(float r, float g, float b, float& out_h, float& out_s, float& out_v)
+{
+    float K = 0.f;
+    if (g < b)
+    {
+        ImSwap(g, b);
+        K = -1.f;
+    }
+    if (r < g)
+    {
+        ImSwap(r, g);
+        K = -2.f / 6.f - K;
+    }
+
+    const float chroma = r - (g < b ? g : b);
+    out_h = ImFabs(K + (g - b) / (6.f * chroma + 1e-20f));
+    out_s = chroma / (r + 1e-20f);
+    out_v = r;
+}
+
+// Convert hsv floats ([0-1],[0-1],[0-1]) to rgb floats ([0-1],[0-1],[0-1]), from Foley & van Dam p593
+// also http://en.wikipedia.org/wiki/HSL_and_HSV
+void ImGui::ColorConvertHSVtoRGB(float h, float s, float v, float& out_r, float& out_g, float& out_b)
+{
+    if (s == 0.0f)
+    {
+        // gray
+        out_r = out_g = out_b = v;
+        return;
+    }
+
+    h = ImFmod(h, 1.0f) / (60.0f / 360.0f);
+    int   i = (int)h;
+    float f = h - (float)i;
+    float p = v * (1.0f - s);
+    float q = v * (1.0f - s * f);
+    float t = v * (1.0f - s * (1.0f - f));
+
+    switch (i)
+    {
+    case 0: out_r = v; out_g = t; out_b = p; break;
+    case 1: out_r = q; out_g = v; out_b = p; break;
+    case 2: out_r = p; out_g = v; out_b = t; break;
+    case 3: out_r = p; out_g = q; out_b = v; break;
+    case 4: out_r = t; out_g = p; out_b = v; break;
+    case 5: default: out_r = v; out_g = p; out_b = q; break;
+    }
+}
+
+//-----------------------------------------------------------------------------
+// [SECTION] ImGuiStorage
+// Helper: Key->value storage
+//-----------------------------------------------------------------------------
+
+// std::lower_bound but without the bullshit
+static ImGuiStorage::ImGuiStoragePair* LowerBound(ImVector<ImGuiStorage::ImGuiStoragePair>& data, ImGuiID key)
+{
+    ImGuiStorage::ImGuiStoragePair* first = data.Data;
+    ImGuiStorage::ImGuiStoragePair* last = data.Data + data.Size;
+    size_t count = (size_t)(last - first);
+    while (count > 0)
+    {
+        size_t count2 = count >> 1;
+        ImGuiStorage::ImGuiStoragePair* mid = first + count2;
+        if (mid->key < key)
+        {
+            first = ++mid;
+            count -= count2 + 1;
+        }
+        else
+        {
+            count = count2;
+        }
+    }
+    return first;
+}
+
+// For quicker full rebuild of a storage (instead of an incremental one), you may add all your contents and then sort once.
+void ImGuiStorage::BuildSortByKey()
+{
+    struct StaticFunc
+    {
+        static int IMGUI_CDECL PairComparerByID(const void* lhs, const void* rhs)
+        {
+            // We can't just do a subtraction because qsort uses signed integers and subtracting our ID doesn't play well with that.
+            if (((const ImGuiStoragePair*)lhs)->key > ((const ImGuiStoragePair*)rhs)->key) return +1;
+            if (((const ImGuiStoragePair*)lhs)->key < ((const ImGuiStoragePair*)rhs)->key) return -1;
+            return 0;
+        }
+    };
+    ImQsort(Data.Data, (size_t)Data.Size, sizeof(ImGuiStoragePair), StaticFunc::PairComparerByID);
+}
+
+int ImGuiStorage::GetInt(ImGuiID key, int default_val) const
+{
+    ImGuiStoragePair* it = LowerBound(const_cast<ImVector<ImGuiStoragePair>&>(Data), key);
+    if (it == Data.end() || it->key != key)
+        return default_val;
+    return it->val_i;
+}
+
+bool ImGuiStorage::GetBool(ImGuiID key, bool default_val) const
+{
+    return GetInt(key, default_val ? 1 : 0) != 0;
+}
+
+float ImGuiStorage::GetFloat(ImGuiID key, float default_val) const
+{
+    ImGuiStoragePair* it = LowerBound(const_cast<ImVector<ImGuiStoragePair>&>(Data), key);
+    if (it == Data.end() || it->key != key)
+        return default_val;
+    return it->val_f;
+}
+
+void* ImGuiStorage::GetVoidPtr(ImGuiID key) const
+{
+    ImGuiStoragePair* it = LowerBound(const_cast<ImVector<ImGuiStoragePair>&>(Data), key);
+    if (it == Data.end() || it->key != key)
+        return NULL;
+    return it->val_p;
+}
+
+// References are only valid until a new value is added to the storage. Calling a Set***() function or a Get***Ref() function invalidates the pointer.
+int* ImGuiStorage::GetIntRef(ImGuiID key, int default_val)
+{
+    ImGuiStoragePair* it = LowerBound(Data, key);
+    if (it == Data.end() || it->key != key)
+        it = Data.insert(it, ImGuiStoragePair(key, default_val));
+    return &it->val_i;
+}
+
+bool* ImGuiStorage::GetBoolRef(ImGuiID key, bool default_val)
+{
+    return (bool*)GetIntRef(key, default_val ? 1 : 0);
+}
+
+float* ImGuiStorage::GetFloatRef(ImGuiID key, float default_val)
+{
+    ImGuiStoragePair* it = LowerBound(Data, key);
+    if (it == Data.end() || it->key != key)
+        it = Data.insert(it, ImGuiStoragePair(key, default_val));
+    return &it->val_f;
+}
+
+void** ImGuiStorage::GetVoidPtrRef(ImGuiID key, void* default_val)
+{
+    ImGuiStoragePair* it = LowerBound(Data, key);
+    if (it == Data.end() || it->key != key)
+        it = Data.insert(it, ImGuiStoragePair(key, default_val));
+    return &it->val_p;
+}
+
+// FIXME-OPT: Need a way to reuse the result of lower_bound when doing GetInt()/SetInt() - not too bad because it only happens on explicit interaction (maximum one a frame)
+void ImGuiStorage::SetInt(ImGuiID key, int val)
+{
+    ImGuiStoragePair* it = LowerBound(Data, key);
+    if (it == Data.end() || it->key != key)
+    {
+        Data.insert(it, ImGuiStoragePair(key, val));
+        return;
+    }
+    it->val_i = val;
+}
+
+void ImGuiStorage::SetBool(ImGuiID key, bool val)
+{
+    SetInt(key, val ? 1 : 0);
+}
+
+void ImGuiStorage::SetFloat(ImGuiID key, float val)
+{
+    ImGuiStoragePair* it = LowerBound(Data, key);
+    if (it == Data.end() || it->key != key)
+    {
+        Data.insert(it, ImGuiStoragePair(key, val));
+        return;
+    }
+    it->val_f = val;
+}
+
+void ImGuiStorage::SetVoidPtr(ImGuiID key, void* val)
+{
+    ImGuiStoragePair* it = LowerBound(Data, key);
+    if (it == Data.end() || it->key != key)
+    {
+        Data.insert(it, ImGuiStoragePair(key, val));
+        return;
+    }
+    it->val_p = val;
+}
+
+void ImGuiStorage::SetAllInt(int v)
+{
+    for (int i = 0; i < Data.Size; i++)
+        Data[i].val_i = v;
+}
+
+//-----------------------------------------------------------------------------
+// [SECTION] ImGuiTextFilter
+//-----------------------------------------------------------------------------
+
+// Helper: Parse and apply text filters. In format "aaaaa[,bbbb][,ccccc]"
+ImGuiTextFilter::ImGuiTextFilter(const char* default_filter) //-V1077
+{
+    InputBuf[0] = 0;
+    CountGrep = 0;
+    if (default_filter)
+    {
+        ImStrncpy(InputBuf, default_filter, IM_ARRAYSIZE(InputBuf));
+        Build();
+    }
+}
+
+bool ImGuiTextFilter::Draw(const char* label, float width)
+{
+    if (width != 0.0f)
+        ImGui::SetNextItemWidth(width);
+    bool value_changed = ImGui::InputText(label, InputBuf, IM_ARRAYSIZE(InputBuf));
+    if (value_changed)
+        Build();
+    return value_changed;
+}
+
+void ImGuiTextFilter::ImGuiTextRange::split(char separator, ImVector<ImGuiTextRange>* out) const
+{
+    out->resize(0);
+    const char* wb = b;
+    const char* we = wb;
+    while (we < e)
+    {
+        if (*we == separator)
+        {
+            out->push_back(ImGuiTextRange(wb, we));
+            wb = we + 1;
+        }
+        we++;
+    }
+    if (wb != we)
+        out->push_back(ImGuiTextRange(wb, we));
+}
+
+void ImGuiTextFilter::Build()
+{
+    Filters.resize(0);
+    ImGuiTextRange input_range(InputBuf, InputBuf + strlen(InputBuf));
+    input_range.split(',', &Filters);
+
+    CountGrep = 0;
+    for (int i = 0; i != Filters.Size; i++)
+    {
+        ImGuiTextRange& f = Filters[i];
+        while (f.b < f.e && ImCharIsBlankA(f.b[0]))
+            f.b++;
+        while (f.e > f.b && ImCharIsBlankA(f.e[-1]))
+            f.e--;
+        if (f.empty())
+            continue;
+        if (Filters[i].b[0] != '-')
+            CountGrep += 1;
+    }
+}
+
+bool ImGuiTextFilter::PassFilter(const char* text, const char* text_end) const
+{
+    if (Filters.empty())
+        return true;
+
+    if (text == NULL)
+        text = "";
+
+    for (int i = 0; i != Filters.Size; i++)
+    {
+        const ImGuiTextRange& f = Filters[i];
+        if (f.empty())
+            continue;
+        if (f.b[0] == '-')
+        {
+            // Subtract
+            if (ImStristr(text, text_end, f.b + 1, f.e) != NULL)
+                return false;
+        }
+        else
+        {
+            // Grep
+            if (ImStristr(text, text_end, f.b, f.e) != NULL)
+                return true;
+        }
+    }
+
+    // Implicit * grep
+    if (CountGrep == 0)
+        return true;
+
+    return false;
+}
+
+//-----------------------------------------------------------------------------
+// [SECTION] ImGuiTextBuffer
+//-----------------------------------------------------------------------------
+
+// On some platform vsnprintf() takes va_list by reference and modifies it.
+// va_copy is the 'correct' way to copy a va_list but Visual Studio prior to 2013 doesn't have it.
+#ifndef va_copy
+#if defined(__GNUC__) || defined(__clang__)
+#define va_copy(dest, src) __builtin_va_copy(dest, src)
+#else
+#define va_copy(dest, src) (dest = src)
+#endif
+#endif
+
+char ImGuiTextBuffer::EmptyString[1] = { 0 };
+
+void ImGuiTextBuffer::append(const char* str, const char* str_end)
+{
+    int len = str_end ? (int)(str_end - str) : (int)strlen(str);
+
+    // Add zero-terminator the first time
+    const int write_off = (Buf.Size != 0) ? Buf.Size : 1;
+    const int needed_sz = write_off + len;
+    if (write_off + len >= Buf.Capacity)
+    {
+        int new_capacity = Buf.Capacity * 2;
+        Buf.reserve(needed_sz > new_capacity ? needed_sz : new_capacity);
+    }
+
+    Buf.resize(needed_sz);
+    memcpy(&Buf[write_off - 1], str, (size_t)len);
+    Buf[write_off - 1 + len] = 0;
+}
+
+void ImGuiTextBuffer::appendf(const char* fmt, ...)
+{
+    va_list args;
+    va_start(args, fmt);
+    appendfv(fmt, args);
+    va_end(args);
+}
+
+// Helper: Text buffer for logging/accumulating text
+void ImGuiTextBuffer::appendfv(const char* fmt, va_list args)
+{
+    va_list args_copy;
+    va_copy(args_copy, args);
+
+    int len = ImFormatStringV(NULL, 0, fmt, args);         // FIXME-OPT: could do a first pass write attempt, likely successful on first pass.
+    if (len <= 0)
+    {
+        va_end(args_copy);
+        return;
+    }
+
+    // Add zero-terminator the first time
+    const int write_off = (Buf.Size != 0) ? Buf.Size : 1;
+    const int needed_sz = write_off + len;
+    if (write_off + len >= Buf.Capacity)
+    {
+        int new_capacity = Buf.Capacity * 2;
+        Buf.reserve(needed_sz > new_capacity ? needed_sz : new_capacity);
+    }
+
+    Buf.resize(needed_sz);
+    ImFormatStringV(&Buf[write_off - 1], (size_t)len + 1, fmt, args_copy);
+    va_end(args_copy);
+}
+
+//-----------------------------------------------------------------------------
+// [SECTION] ImGuiListClipper
+// This is currently not as flexible/powerful as it should be and really confusing/spaghetti, mostly because we changed
+// the API mid-way through development and support two ways to using the clipper, needs some rework (see TODO)
+//-----------------------------------------------------------------------------
+
+// FIXME-TABLE: This prevents us from using ImGuiListClipper _inside_ a table cell.
+// The problem we have is that without a Begin/End scheme for rows using the clipper is ambiguous.
+static bool GetSkipItemForListClipping()
+{
+    ImGuiContext& g = *GImGui;
+    return (g.CurrentTable ? g.CurrentTable->HostSkipItems : g.CurrentWindow->SkipItems);
+}
+
+#ifndef IMGUI_DISABLE_OBSOLETE_FUNCTIONS
+// Legacy helper to calculate coarse clipping of large list of evenly sized items.
+// This legacy API is not ideal because it assume we will return a single contiguous rectangle.
+// Prefer using ImGuiListClipper which can returns non-contiguous ranges.
+void ImGui::CalcListClipping(int items_count, float items_height, int* out_items_display_start, int* out_items_display_end)
+{
+    ImGuiContext& g = *GImGui;
+    ImGuiWindow* window = g.CurrentWindow;
+    if (g.LogEnabled)
+    {
+        // If logging is active, do not perform any clipping
+        *out_items_display_start = 0;
+        *out_items_display_end = items_count;
+        return;
+    }
+    if (GetSkipItemForListClipping())
+    {
+        *out_items_display_start = *out_items_display_end = 0;
+        return;
+    }
+
+    // We create the union of the ClipRect and the scoring rect which at worst should be 1 page away from ClipRect
+    // We don't include g.NavId's rectangle in there (unless g.NavJustMovedToId is set) because the rectangle enlargement can get costly.
+    ImRect rect = window->ClipRect;
+    if (g.NavMoveScoringItems)
+        rect.Add(g.NavScoringNoClipRect);
+    if (g.NavJustMovedToId && window->NavLastIds[0] == g.NavJustMovedToId)
+        rect.Add(WindowRectRelToAbs(window, window->NavRectRel[0])); // Could store and use NavJustMovedToRectRel
+
+    const ImVec2 pos = window->DC.CursorPos;
+    int start = (int)((rect.Min.y - pos.y) / items_height);
+    int end = (int)((rect.Max.y - pos.y) / items_height);
+
+    // When performing a navigation request, ensure we have one item extra in the direction we are moving to
+    // FIXME: Verify this works with tabbing
+    const bool is_nav_request = (g.NavMoveScoringItems && g.NavWindow && g.NavWindow->RootWindowForNav == window->RootWindowForNav);
+    if (is_nav_request && g.NavMoveClipDir == ImGuiDir_Up)
+        start--;
+    if (is_nav_request && g.NavMoveClipDir == ImGuiDir_Down)
+        end++;
+
+    start = ImClamp(start, 0, items_count);
+    end = ImClamp(end + 1, start, items_count);
+    *out_items_display_start = start;
+    *out_items_display_end = end;
+}
+#endif
+
+static void ImGuiListClipper_SortAndFuseRanges(ImVector<ImGuiListClipperRange>& ranges, int offset = 0)
+{
+    if (ranges.Size - offset <= 1)
+        return;
+
+    // Helper to order ranges and fuse them together if possible (bubble sort is fine as we are only sorting 2-3 entries)
+    for (int sort_end = ranges.Size - offset - 1; sort_end > 0; --sort_end)
+        for (int i = offset; i < sort_end + offset; ++i)
+            if (ranges[i].Min > ranges[i + 1].Min)
+                ImSwap(ranges[i], ranges[i + 1]);
+
+    // Now fuse ranges together as much as possible.
+    for (int i = 1 + offset; i < ranges.Size; i++)
+    {
+        IM_ASSERT(!ranges[i].PosToIndexConvert && !ranges[i - 1].PosToIndexConvert);
+        if (ranges[i - 1].Max < ranges[i].Min)
+            continue;
+        ranges[i - 1].Min = ImMin(ranges[i - 1].Min, ranges[i].Min);
+        ranges[i - 1].Max = ImMax(ranges[i - 1].Max, ranges[i].Max);
+        ranges.erase(ranges.Data + i);
+        i--;
+    }
+}
+
+static void ImGuiListClipper_SeekCursorAndSetupPrevLine(float pos_y, float line_height)
+{
+    // Set cursor position and a few other things so that SetScrollHereY() and Columns() can work when seeking cursor.
+    // FIXME: It is problematic that we have to do that here, because custom/equivalent end-user code would stumble on the same issue.
+    // The clipper should probably have a final step to display the last item in a regular manner, maybe with an opt-out flag for data sets which may have costly seek?
+    ImGuiContext& g = *GImGui;
+    ImGuiWindow* window = g.CurrentWindow;
+    float off_y = pos_y - window->DC.CursorPos.y;
+    window->DC.CursorPos.y = pos_y;
+    window->DC.CursorMaxPos.y = ImMax(window->DC.CursorMaxPos.y, pos_y - g.Style.ItemSpacing.y);
+    window->DC.CursorPosPrevLine.y = window->DC.CursorPos.y - line_height;  // Setting those fields so that SetScrollHereY() can properly function after the end of our clipper usage.
+    window->DC.PrevLineSize.y = (line_height - g.Style.ItemSpacing.y);      // If we end up needing more accurate data (to e.g. use SameLine) we may as well make the clipper have a fourth step to let user process and display the last item in their list.
+    if (ImGuiOldColumns* columns = window->DC.CurrentColumns)
+        columns->LineMinY = window->DC.CursorPos.y;                         // Setting this so that cell Y position are set properly
+    if (ImGuiTable* table = g.CurrentTable)
+    {
+        if (table->IsInsideRow)
+            ImGui::TableEndRow(table);
+        table->RowPosY2 = window->DC.CursorPos.y;
+        const int row_increase = (int)((off_y / line_height) + 0.5f);
+        //table->CurrentRow += row_increase; // Can't do without fixing TableEndRow()
+        table->RowBgColorCounter += row_increase;
+    }
+}
+
+static void ImGuiListClipper_SeekCursorForItem(ImGuiListClipper* clipper, int item_n)
+{
+    // StartPosY starts from ItemsFrozen hence the subtraction
+    // Perform the add and multiply with double to allow seeking through larger ranges
+    ImGuiListClipperData* data = (ImGuiListClipperData*)clipper->TempData;
+    float pos_y = (float)((double)clipper->StartPosY + data->LossynessOffset + (double)(item_n - data->ItemsFrozen) * clipper->ItemsHeight);
+    ImGuiListClipper_SeekCursorAndSetupPrevLine(pos_y, clipper->ItemsHeight);
+}
+
+ImGuiListClipper::ImGuiListClipper()
+{
+    memset(this, 0, sizeof(*this));
+    ItemsCount = -1;
+}
+
+ImGuiListClipper::~ImGuiListClipper()
+{
+    End();
+}
+
+// Use case A: Begin() called from constructor with items_height<0, then called again from Step() in StepNo 1
+// Use case B: Begin() called from constructor with items_height>0
+// FIXME-LEGACY: Ideally we should remove the Begin/End functions but they are part of the legacy API we still support. This is why some of the code in Step() calling Begin() and reassign some fields, spaghetti style.
+void ImGuiListClipper::Begin(int items_count, float items_height)
+{
+    ImGuiContext& g = *GImGui;
+    ImGuiWindow* window = g.CurrentWindow;
+
+    if (ImGuiTable* table = g.CurrentTable)
+        if (table->IsInsideRow)
+            ImGui::TableEndRow(table);
+
+    StartPosY = window->DC.CursorPos.y;
+    ItemsHeight = items_height;
+    ItemsCount = items_count;
+    DisplayStart = -1;
+    DisplayEnd = 0;
+
+    // Acquire temporary buffer
+    if (++g.ClipperTempDataStacked > g.ClipperTempData.Size)
+        g.ClipperTempData.resize(g.ClipperTempDataStacked, ImGuiListClipperData());
+    ImGuiListClipperData* data = &g.ClipperTempData[g.ClipperTempDataStacked - 1];
+    data->Reset(this);
+    data->LossynessOffset = window->DC.CursorStartPosLossyness.y;
+    TempData = data;
+}
+
+void ImGuiListClipper::End()
+{
+    ImGuiContext& g = *GImGui;
+    if (ImGuiListClipperData* data = (ImGuiListClipperData*)TempData)
+    {
+        // In theory here we should assert that we are already at the right position, but it seems saner to just seek at the end and not assert/crash the user.
+        if (ItemsCount >= 0 && ItemsCount < INT_MAX && DisplayStart >= 0)
+            ImGuiListClipper_SeekCursorForItem(this, ItemsCount);
+
+        // Restore temporary buffer and fix back pointers which may be invalidated when nesting
+        IM_ASSERT(data->ListClipper == this);
+        data->StepNo = data->Ranges.Size;
+        if (--g.ClipperTempDataStacked > 0)
+        {
+            data = &g.ClipperTempData[g.ClipperTempDataStacked - 1];
+            data->ListClipper->TempData = data;
+        }
+        TempData = NULL;
+    }
+    ItemsCount = -1;
+}
+
+void ImGuiListClipper::ForceDisplayRangeByIndices(int item_min, int item_max)
+{
+    ImGuiListClipperData* data = (ImGuiListClipperData*)TempData;
+    IM_ASSERT(DisplayStart < 0); // Only allowed after Begin() and if there has not been a specified range yet.
+    IM_ASSERT(item_min <= item_max);
+    if (item_min < item_max)
+        data->Ranges.push_back(ImGuiListClipperRange::FromIndices(item_min, item_max));
+}
+
+bool ImGuiListClipper::Step()
+{
+    ImGuiContext& g = *GImGui;
+    ImGuiWindow* window = g.CurrentWindow;
+    ImGuiListClipperData* data = (ImGuiListClipperData*)TempData;
+    IM_ASSERT(data != NULL && "Called ImGuiListClipper::Step() too many times, or before ImGuiListClipper::Begin() ?");
+
+    ImGuiTable* table = g.CurrentTable;
+    if (table && table->IsInsideRow)
+        ImGui::TableEndRow(table);
+
+    // No items
+    if (ItemsCount == 0 || GetSkipItemForListClipping())
+        return (void)End(), false;
+
+    // While we are in frozen row state, keep displaying items one by one, unclipped
+    // FIXME: Could be stored as a table-agnostic state.
+    if (data->StepNo == 0 && table != NULL && !table->IsUnfrozenRows)
+    {
+        DisplayStart = data->ItemsFrozen;
+        DisplayEnd = data->ItemsFrozen + 1;
+        if (DisplayStart >= ItemsCount)
+            return (void)End(), false;
+        data->ItemsFrozen++;
+        return true;
+    }
+
+    // Step 0: Let you process the first element (regardless of it being visible or not, so we can measure the element height)
+    bool calc_clipping = false;
+    if (data->StepNo == 0)
+    {
+        StartPosY = window->DC.CursorPos.y;
+        if (ItemsHeight <= 0.0f)
+        {
+            // Submit the first item (or range) so we can measure its height (generally the first range is 0..1)
+            data->Ranges.push_front(ImGuiListClipperRange::FromIndices(data->ItemsFrozen, data->ItemsFrozen + 1));
+            DisplayStart = ImMax(data->Ranges[0].Min, data->ItemsFrozen);
+            DisplayEnd = ImMin(data->Ranges[0].Max, ItemsCount);
+            if (DisplayStart == DisplayEnd)
+                return (void)End(), false;
+            data->StepNo = 1;
+            return true;
+        }
+        calc_clipping = true;   // If on the first step with known item height, calculate clipping.
+    }
+
+    // Step 1: Let the clipper infer height from first range
+    if (ItemsHeight <= 0.0f)
+    {
+        IM_ASSERT(data->StepNo == 1);
+        if (table)
+            IM_ASSERT(table->RowPosY1 == StartPosY && table->RowPosY2 == window->DC.CursorPos.y);
+
+        ItemsHeight = (window->DC.CursorPos.y - StartPosY) / (float)(DisplayEnd - DisplayStart);
+        bool affected_by_floating_point_precision = ImIsFloatAboveGuaranteedIntegerPrecision(StartPosY) || ImIsFloatAboveGuaranteedIntegerPrecision(window->DC.CursorPos.y);
+        if (affected_by_floating_point_precision)
+            ItemsHeight = window->DC.PrevLineSize.y + g.Style.ItemSpacing.y; // FIXME: Technically wouldn't allow multi-line entries.
+
+        IM_ASSERT(ItemsHeight > 0.0f && "Unable to calculate item height! First item hasn't moved the cursor vertically!");
+        calc_clipping = true;   // If item height had to be calculated, calculate clipping afterwards.
+    }
+
+    // Step 0 or 1: Calculate the actual ranges of visible elements.
+    const int already_submitted = DisplayEnd;
+    if (calc_clipping)
+    {
+        if (g.LogEnabled)
+        {
+            // If logging is active, do not perform any clipping
+            data->Ranges.push_back(ImGuiListClipperRange::FromIndices(0, ItemsCount));
+        }
+        else
+        {
+            // Add range selected to be included for navigation
+            const bool is_nav_request = (g.NavMoveScoringItems && g.NavWindow && g.NavWindow->RootWindowForNav == window->RootWindowForNav);
+            if (is_nav_request)
+                data->Ranges.push_back(ImGuiListClipperRange::FromPositions(g.NavScoringNoClipRect.Min.y, g.NavScoringNoClipRect.Max.y, 0, 0));
+            if (is_nav_request && (g.NavMoveFlags & ImGuiNavMoveFlags_Tabbing) && g.NavTabbingDir == -1)
+                data->Ranges.push_back(ImGuiListClipperRange::FromIndices(ItemsCount - 1, ItemsCount));
+
+            // Add focused/active item
+            ImRect nav_rect_abs = ImGui::WindowRectRelToAbs(window, window->NavRectRel[0]);
+            if (g.NavId != 0 && window->NavLastIds[0] == g.NavId)
+                data->Ranges.push_back(ImGuiListClipperRange::FromPositions(nav_rect_abs.Min.y, nav_rect_abs.Max.y, 0, 0));
+
+            // Add visible range
+            const int off_min = (is_nav_request && g.NavMoveClipDir == ImGuiDir_Up) ? -1 : 0;
+            const int off_max = (is_nav_request && g.NavMoveClipDir == ImGuiDir_Down) ? 1 : 0;
+            data->Ranges.push_back(ImGuiListClipperRange::FromPositions(window->ClipRect.Min.y, window->ClipRect.Max.y, off_min, off_max));
+        }
+
+        // Convert position ranges to item index ranges
+        // - Very important: when a starting position is after our maximum item, we set Min to (ItemsCount - 1). This allows us to handle most forms of wrapping.
+        // - Due to how Selectable extra padding they tend to be "unaligned" with exact unit in the item list,
+        //   which with the flooring/ceiling tend to lead to 2 items instead of one being submitted.
+        for (int i = 0; i < data->Ranges.Size; i++)
+            if (data->Ranges[i].PosToIndexConvert)
+            {
+                int m1 = (int)(((double)data->Ranges[i].Min - window->DC.CursorPos.y - data->LossynessOffset) / ItemsHeight);
+                int m2 = (int)((((double)data->Ranges[i].Max - window->DC.CursorPos.y - data->LossynessOffset) / ItemsHeight) + 0.999999f);
+                data->Ranges[i].Min = ImClamp(already_submitted + m1 + data->Ranges[i].PosToIndexOffsetMin, already_submitted, ItemsCount - 1);
+                data->Ranges[i].Max = ImClamp(already_submitted + m2 + data->Ranges[i].PosToIndexOffsetMax, data->Ranges[i].Min + 1, ItemsCount);
+                data->Ranges[i].PosToIndexConvert = false;
+            }
+        ImGuiListClipper_SortAndFuseRanges(data->Ranges, data->StepNo);
+    }
+
+    // Step 0+ (if item height is given in advance) or 1+: Display the next range in line.
+    if (data->StepNo < data->Ranges.Size)
+    {
+        DisplayStart = ImMax(data->Ranges[data->StepNo].Min, already_submitted);
+        DisplayEnd = ImMin(data->Ranges[data->StepNo].Max, ItemsCount);
+        if (DisplayStart > already_submitted) //-V1051
+            ImGuiListClipper_SeekCursorForItem(this, DisplayStart);
+        data->StepNo++;
+        return true;
+    }
+
+    // After the last step: Let the clipper validate that we have reached the expected Y position (corresponding to element DisplayEnd),
+    // Advance the cursor to the end of the list and then returns 'false' to end the loop.
+    if (ItemsCount < INT_MAX)
+        ImGuiListClipper_SeekCursorForItem(this, ItemsCount);
+
+    End();
+    return false;
+}
+
+//-----------------------------------------------------------------------------
+// [SECTION] STYLING
+//-----------------------------------------------------------------------------
+
+ImGuiStyle& ImGui::GetStyle()
+{
+    IM_ASSERT(GImGui != NULL && "No current context. Did you call ImGui::CreateContext() and ImGui::SetCurrentContext() ?");
+    return GImGui->Style;
+}
+
+ImU32 ImGui::GetColorU32(ImGuiCol idx, float alpha_mul)
+{
+    ImGuiStyle& style = GImGui->Style;
+    ImVec4 c = style.Colors[idx];
+    c.w *= style.Alpha * alpha_mul;
+    return ColorConvertFloat4ToU32(c);
+}
+
+ImU32 ImGui::GetColorU32(const ImVec4& col)
+{
+    ImGuiStyle& style = GImGui->Style;
+    ImVec4 c = col;
+    c.w *= style.Alpha;
+    return ColorConvertFloat4ToU32(c);
+}
+
+const ImVec4& ImGui::GetStyleColorVec4(ImGuiCol idx)
+{
+    ImGuiStyle& style = GImGui->Style;
+    return style.Colors[idx];
+}
+
+ImU32 ImGui::GetColorU32(ImU32 col)
+{
+    ImGuiStyle& style = GImGui->Style;
+    if (style.Alpha >= 1.0f)
+        return col;
+    ImU32 a = (col & IM_COL32_A_MASK) >> IM_COL32_A_SHIFT;
+    a = (ImU32)(a * style.Alpha); // We don't need to clamp 0..255 because Style.Alpha is in 0..1 range.
+    return (col & ~IM_COL32_A_MASK) | (a << IM_COL32_A_SHIFT);
+}
+
+// FIXME: This may incur a round-trip (if the end user got their data from a float4) but eventually we aim to store the in-flight colors as ImU32
+void ImGui::PushStyleColor(ImGuiCol idx, ImU32 col)
+{
+    ImGuiContext& g = *GImGui;
+    ImGuiColorMod backup;
+    backup.Col = idx;
+    backup.BackupValue = g.Style.Colors[idx];
+    g.ColorStack.push_back(backup);
+    g.Style.Colors[idx] = ColorConvertU32ToFloat4(col);
+}
+
+void ImGui::PushStyleColor(ImGuiCol idx, const ImVec4& col)
+{
+    ImGuiContext& g = *GImGui;
+    ImGuiColorMod backup;
+    backup.Col = idx;
+    backup.BackupValue = g.Style.Colors[idx];
+    g.ColorStack.push_back(backup);
+    g.Style.Colors[idx] = col;
+}
+
+void ImGui::PopStyleColor(int count)
+{
+    ImGuiContext& g = *GImGui;
+    while (count > 0)
+    {
+        ImGuiColorMod& backup = g.ColorStack.back();
+        g.Style.Colors[backup.Col] = backup.BackupValue;
+        g.ColorStack.pop_back();
+        count--;
+    }
+}
+
+struct ImGuiStyleVarInfo
+{
+    ImGuiDataType   Type;
+    ImU32           Count;
+    ImU32           Offset;
+    void*           GetVarPtr(ImGuiStyle* style) const { return (void*)((unsigned char*)style + Offset); }
+};
+
+static const ImGuiStyleVarInfo GStyleVarInfo[] =
+{
+    { ImGuiDataType_Float, 1, (ImU32)IM_OFFSETOF(ImGuiStyle, Alpha) },               // ImGuiStyleVar_Alpha
+    { ImGuiDataType_Float, 1, (ImU32)IM_OFFSETOF(ImGuiStyle, DisabledAlpha) },       // ImGuiStyleVar_DisabledAlpha
+    { ImGuiDataType_Float, 2, (ImU32)IM_OFFSETOF(ImGuiStyle, WindowPadding) },       // ImGuiStyleVar_WindowPadding
+    { ImGuiDataType_Float, 1, (ImU32)IM_OFFSETOF(ImGuiStyle, WindowRounding) },      // ImGuiStyleVar_WindowRounding
+    { ImGuiDataType_Float, 1, (ImU32)IM_OFFSETOF(ImGuiStyle, WindowBorderSize) },    // ImGuiStyleVar_WindowBorderSize
+    { ImGuiDataType_Float, 2, (ImU32)IM_OFFSETOF(ImGuiStyle, WindowMinSize) },       // ImGuiStyleVar_WindowMinSize
+    { ImGuiDataType_Float, 2, (ImU32)IM_OFFSETOF(ImGuiStyle, WindowTitleAlign) },    // ImGuiStyleVar_WindowTitleAlign
+    { ImGuiDataType_Float, 1, (ImU32)IM_OFFSETOF(ImGuiStyle, ChildRounding) },       // ImGuiStyleVar_ChildRounding
+    { ImGuiDataType_Float, 1, (ImU32)IM_OFFSETOF(ImGuiStyle, ChildBorderSize) },     // ImGuiStyleVar_ChildBorderSize
+    { ImGuiDataType_Float, 1, (ImU32)IM_OFFSETOF(ImGuiStyle, PopupRounding) },       // ImGuiStyleVar_PopupRounding
+    { ImGuiDataType_Float, 1, (ImU32)IM_OFFSETOF(ImGuiStyle, PopupBorderSize) },     // ImGuiStyleVar_PopupBorderSize
+    { ImGuiDataType_Float, 2, (ImU32)IM_OFFSETOF(ImGuiStyle, FramePadding) },        // ImGuiStyleVar_FramePadding
+    { ImGuiDataType_Float, 1, (ImU32)IM_OFFSETOF(ImGuiStyle, FrameRounding) },       // ImGuiStyleVar_FrameRounding
+    { ImGuiDataType_Float, 1, (ImU32)IM_OFFSETOF(ImGuiStyle, FrameBorderSize) },     // ImGuiStyleVar_FrameBorderSize
+    { ImGuiDataType_Float, 2, (ImU32)IM_OFFSETOF(ImGuiStyle, ItemSpacing) },         // ImGuiStyleVar_ItemSpacing
+    { ImGuiDataType_Float, 2, (ImU32)IM_OFFSETOF(ImGuiStyle, ItemInnerSpacing) },    // ImGuiStyleVar_ItemInnerSpacing
+    { ImGuiDataType_Float, 1, (ImU32)IM_OFFSETOF(ImGuiStyle, IndentSpacing) },       // ImGuiStyleVar_IndentSpacing
+    { ImGuiDataType_Float, 2, (ImU32)IM_OFFSETOF(ImGuiStyle, CellPadding) },         // ImGuiStyleVar_CellPadding
+    { ImGuiDataType_Float, 1, (ImU32)IM_OFFSETOF(ImGuiStyle, ScrollbarSize) },       // ImGuiStyleVar_ScrollbarSize
+    { ImGuiDataType_Float, 1, (ImU32)IM_OFFSETOF(ImGuiStyle, ScrollbarRounding) },   // ImGuiStyleVar_ScrollbarRounding
+    { ImGuiDataType_Float, 1, (ImU32)IM_OFFSETOF(ImGuiStyle, GrabMinSize) },         // ImGuiStyleVar_GrabMinSize
+    { ImGuiDataType_Float, 1, (ImU32)IM_OFFSETOF(ImGuiStyle, GrabRounding) },        // ImGuiStyleVar_GrabRounding
+    { ImGuiDataType_Float, 1, (ImU32)IM_OFFSETOF(ImGuiStyle, TabRounding) },         // ImGuiStyleVar_TabRounding
+    { ImGuiDataType_Float, 2, (ImU32)IM_OFFSETOF(ImGuiStyle, ButtonTextAlign) },     // ImGuiStyleVar_ButtonTextAlign
+    { ImGuiDataType_Float, 2, (ImU32)IM_OFFSETOF(ImGuiStyle, SelectableTextAlign) }, // ImGuiStyleVar_SelectableTextAlign
+};
+
+static const ImGuiStyleVarInfo* GetStyleVarInfo(ImGuiStyleVar idx)
+{
+    IM_ASSERT(idx >= 0 && idx < ImGuiStyleVar_COUNT);
+    IM_ASSERT(IM_ARRAYSIZE(GStyleVarInfo) == ImGuiStyleVar_COUNT);
+    return &GStyleVarInfo[idx];
+}
+
+void ImGui::PushStyleVar(ImGuiStyleVar idx, float val)
+{
+    const ImGuiStyleVarInfo* var_info = GetStyleVarInfo(idx);
+    if (var_info->Type == ImGuiDataType_Float && var_info->Count == 1)
+    {
+        ImGuiContext& g = *GImGui;
+        float* pvar = (float*)var_info->GetVarPtr(&g.Style);
+        g.StyleVarStack.push_back(ImGuiStyleMod(idx, *pvar));
+        *pvar = val;
+        return;
+    }
+    IM_ASSERT(0 && "Called PushStyleVar() float variant but variable is not a float!");
+}
+
+void ImGui::PushStyleVar(ImGuiStyleVar idx, const ImVec2& val)
+{
+    const ImGuiStyleVarInfo* var_info = GetStyleVarInfo(idx);
+    if (var_info->Type == ImGuiDataType_Float && var_info->Count == 2)
+    {
+        ImGuiContext& g = *GImGui;
+        ImVec2* pvar = (ImVec2*)var_info->GetVarPtr(&g.Style);
+        g.StyleVarStack.push_back(ImGuiStyleMod(idx, *pvar));
+        *pvar = val;
+        return;
+    }
+    IM_ASSERT(0 && "Called PushStyleVar() ImVec2 variant but variable is not a ImVec2!");
+}
+
+void ImGui::PopStyleVar(int count)
+{
+    ImGuiContext& g = *GImGui;
+    while (count > 0)
+    {
+        // We avoid a generic memcpy(data, &backup.Backup.., GDataTypeSize[info->Type] * info->Count), the overhead in Debug is not worth it.
+        ImGuiStyleMod& backup = g.StyleVarStack.back();
+        const ImGuiStyleVarInfo* info = GetStyleVarInfo(backup.VarIdx);
+        void* data = info->GetVarPtr(&g.Style);
+        if (info->Type == ImGuiDataType_Float && info->Count == 1)      { ((float*)data)[0] = backup.BackupFloat[0]; }
+        else if (info->Type == ImGuiDataType_Float && info->Count == 2) { ((float*)data)[0] = backup.BackupFloat[0]; ((float*)data)[1] = backup.BackupFloat[1]; }
+        g.StyleVarStack.pop_back();
+        count--;
+    }
+}
+
+const char* ImGui::GetStyleColorName(ImGuiCol idx)
+{
+    // Create switch-case from enum with regexp: ImGuiCol_{.*}, --> case ImGuiCol_\1: return "\1";
+    switch (idx)
+    {
+    case ImGuiCol_Text: return "Text";
+    case ImGuiCol_TextDisabled: return "TextDisabled";
+    case ImGuiCol_WindowBg: return "WindowBg";
+    case ImGuiCol_ChildBg: return "ChildBg";
+    case ImGuiCol_PopupBg: return "PopupBg";
+    case ImGuiCol_Border: return "Border";
+    case ImGuiCol_BorderShadow: return "BorderShadow";
+    case ImGuiCol_FrameBg: return "FrameBg";
+    case ImGuiCol_FrameBgHovered: return "FrameBgHovered";
+    case ImGuiCol_FrameBgActive: return "FrameBgActive";
+    case ImGuiCol_TitleBg: return "TitleBg";
+    case ImGuiCol_TitleBgActive: return "TitleBgActive";
+    case ImGuiCol_TitleBgCollapsed: return "TitleBgCollapsed";
+    case ImGuiCol_MenuBarBg: return "MenuBarBg";
+    case ImGuiCol_ScrollbarBg: return "ScrollbarBg";
+    case ImGuiCol_ScrollbarGrab: return "ScrollbarGrab";
+    case ImGuiCol_ScrollbarGrabHovered: return "ScrollbarGrabHovered";
+    case ImGuiCol_ScrollbarGrabActive: return "ScrollbarGrabActive";
+    case ImGuiCol_CheckMark: return "CheckMark";
+    case ImGuiCol_SliderGrab: return "SliderGrab";
+    case ImGuiCol_SliderGrabActive: return "SliderGrabActive";
+    case ImGuiCol_Button: return "Button";
+    case ImGuiCol_ButtonHovered: return "ButtonHovered";
+    case ImGuiCol_ButtonActive: return "ButtonActive";
+    case ImGuiCol_Header: return "Header";
+    case ImGuiCol_HeaderHovered: return "HeaderHovered";
+    case ImGuiCol_HeaderActive: return "HeaderActive";
+    case ImGuiCol_Separator: return "Separator";
+    case ImGuiCol_SeparatorHovered: return "SeparatorHovered";
+    case ImGuiCol_SeparatorActive: return "SeparatorActive";
+    case ImGuiCol_ResizeGrip: return "ResizeGrip";
+    case ImGuiCol_ResizeGripHovered: return "ResizeGripHovered";
+    case ImGuiCol_ResizeGripActive: return "ResizeGripActive";
+    case ImGuiCol_Tab: return "Tab";
+    case ImGuiCol_TabHovered: return "TabHovered";
+    case ImGuiCol_TabActive: return "TabActive";
+    case ImGuiCol_TabUnfocused: return "TabUnfocused";
+    case ImGuiCol_TabUnfocusedActive: return "TabUnfocusedActive";
+    case ImGuiCol_PlotLines: return "PlotLines";
+    case ImGuiCol_PlotLinesHovered: return "PlotLinesHovered";
+    case ImGuiCol_PlotHistogram: return "PlotHistogram";
+    case ImGuiCol_PlotHistogramHovered: return "PlotHistogramHovered";
+    case ImGuiCol_TableHeaderBg: return "TableHeaderBg";
+    case ImGuiCol_TableBorderStrong: return "TableBorderStrong";
+    case ImGuiCol_TableBorderLight: return "TableBorderLight";
+    case ImGuiCol_TableRowBg: return "TableRowBg";
+    case ImGuiCol_TableRowBgAlt: return "TableRowBgAlt";
+    case ImGuiCol_TextSelectedBg: return "TextSelectedBg";
+    case ImGuiCol_DragDropTarget: return "DragDropTarget";
+    case ImGuiCol_NavHighlight: return "NavHighlight";
+    case ImGuiCol_NavWindowingHighlight: return "NavWindowingHighlight";
+    case ImGuiCol_NavWindowingDimBg: return "NavWindowingDimBg";
+    case ImGuiCol_ModalWindowDimBg: return "ModalWindowDimBg";
+    }
+    IM_ASSERT(0);
+    return "Unknown";
+}
+
+
+//-----------------------------------------------------------------------------
+// [SECTION] RENDER HELPERS
+// Some of those (internal) functions are currently quite a legacy mess - their signature and behavior will change,
+// we need a nicer separation between low-level functions and high-level functions relying on the ImGui context.
+// Also see imgui_draw.cpp for some more which have been reworked to not rely on ImGui:: context.
+//-----------------------------------------------------------------------------
+
+const char* ImGui::FindRenderedTextEnd(const char* text, const char* text_end)
+{
+    const char* text_display_end = text;
+    if (!text_end)
+        text_end = (const char*)-1;
+
+    while (text_display_end < text_end && *text_display_end != '\0' && (text_display_end[0] != '#' || text_display_end[1] != '#'))
+        text_display_end++;
+    return text_display_end;
+}
+
+// Internal ImGui functions to render text
+// RenderText***() functions calls ImDrawList::AddText() calls ImBitmapFont::RenderText()
+void ImGui::RenderText(ImVec2 pos, const char* text, const char* text_end, bool hide_text_after_hash)
+{
+    ImGuiContext& g = *GImGui;
+    ImGuiWindow* window = g.CurrentWindow;
+
+    // Hide anything after a '##' string
+    const char* text_display_end;
+    if (hide_text_after_hash)
+    {
+        text_display_end = FindRenderedTextEnd(text, text_end);
+    }
+    else
+    {
+        if (!text_end)
+            text_end = text + strlen(text); // FIXME-OPT
+        text_display_end = text_end;
+    }
+
+    if (text != text_display_end)
+    {
+        window->DrawList->AddText(g.Font, g.FontSize, pos, GetColorU32(ImGuiCol_Text), text, text_display_end);
+        if (g.LogEnabled)
+            LogRenderedText(&pos, text, text_display_end);
+    }
+}
+
+void ImGui::RenderTextWrapped(ImVec2 pos, const char* text, const char* text_end, float wrap_width)
+{
+    ImGuiContext& g = *GImGui;
+    ImGuiWindow* window = g.CurrentWindow;
+
+    if (!text_end)
+        text_end = text + strlen(text); // FIXME-OPT
+
+    if (text != text_end)
+    {
+        window->DrawList->AddText(g.Font, g.FontSize, pos, GetColorU32(ImGuiCol_Text), text, text_end, wrap_width);
+        if (g.LogEnabled)
+            LogRenderedText(&pos, text, text_end);
+    }
+}
+
+// Default clip_rect uses (pos_min,pos_max)
+// Handle clipping on CPU immediately (vs typically let the GPU clip the triangles that are overlapping the clipping rectangle edges)
+void ImGui::RenderTextClippedEx(ImDrawList* draw_list, const ImVec2& pos_min, const ImVec2& pos_max, const char* text, const char* text_display_end, const ImVec2* text_size_if_known, const ImVec2& align, const ImRect* clip_rect)
+{
+    // Perform CPU side clipping for single clipped element to avoid using scissor state
+    ImVec2 pos = pos_min;
+    const ImVec2 text_size = text_size_if_known ? *text_size_if_known : CalcTextSize(text, text_display_end, false, 0.0f);
+
+    const ImVec2* clip_min = clip_rect ? &clip_rect->Min : &pos_min;
+    const ImVec2* clip_max = clip_rect ? &clip_rect->Max : &pos_max;
+    bool need_clipping = (pos.x + text_size.x >= clip_max->x) || (pos.y + text_size.y >= clip_max->y);
+    if (clip_rect) // If we had no explicit clipping rectangle then pos==clip_min
+        need_clipping |= (pos.x < clip_min->x) || (pos.y < clip_min->y);
+
+    // Align whole block. We should defer that to the better rendering function when we'll have support for individual line alignment.
+    if (align.x > 0.0f) pos.x = ImMax(pos.x, pos.x + (pos_max.x - pos.x - text_size.x) * align.x);
+    if (align.y > 0.0f) pos.y = ImMax(pos.y, pos.y + (pos_max.y - pos.y - text_size.y) * align.y);
+
+    // Render
+    if (need_clipping)
+    {
+        ImVec4 fine_clip_rect(clip_min->x, clip_min->y, clip_max->x, clip_max->y);
+        draw_list->AddText(NULL, 0.0f, pos, GetColorU32(ImGuiCol_Text), text, text_display_end, 0.0f, &fine_clip_rect);
+    }
+    else
+    {
+        draw_list->AddText(NULL, 0.0f, pos, GetColorU32(ImGuiCol_Text), text, text_display_end, 0.0f, NULL);
+    }
+}
+
+void ImGui::RenderTextClipped(const ImVec2& pos_min, const ImVec2& pos_max, const char* text, const char* text_end, const ImVec2* text_size_if_known, const ImVec2& align, const ImRect* clip_rect)
+{
+    // Hide anything after a '##' string
+    const char* text_display_end = FindRenderedTextEnd(text, text_end);
+    const int text_len = (int)(text_display_end - text);
+    if (text_len == 0)
+        return;
+
+    ImGuiContext& g = *GImGui;
+    ImGuiWindow* window = g.CurrentWindow;
+    RenderTextClippedEx(window->DrawList, pos_min, pos_max, text, text_display_end, text_size_if_known, align, clip_rect);
+    if (g.LogEnabled)
+        LogRenderedText(&pos_min, text, text_display_end);
+}
+
+
+// Another overly complex function until we reorganize everything into a nice all-in-one helper.
+// This is made more complex because we have dissociated the layout rectangle (pos_min..pos_max) which define _where_ the ellipsis is, from actual clipping of text and limit of the ellipsis display.
+// This is because in the context of tabs we selectively hide part of the text when the Close Button appears, but we don't want the ellipsis to move.
+void ImGui::RenderTextEllipsis(ImDrawList* draw_list, const ImVec2& pos_min, const ImVec2& pos_max, float clip_max_x, float ellipsis_max_x, const char* text, const char* text_end_full, const ImVec2* text_size_if_known)
+{
+    ImGuiContext& g = *GImGui;
+    if (text_end_full == NULL)
+        text_end_full = FindRenderedTextEnd(text);
+    const ImVec2 text_size = text_size_if_known ? *text_size_if_known : CalcTextSize(text, text_end_full, false, 0.0f);
+
+    //draw_list->AddLine(ImVec2(pos_max.x, pos_min.y - 4), ImVec2(pos_max.x, pos_max.y + 4), IM_COL32(0, 0, 255, 255));
+    //draw_list->AddLine(ImVec2(ellipsis_max_x, pos_min.y-2), ImVec2(ellipsis_max_x, pos_max.y+2), IM_COL32(0, 255, 0, 255));
+    //draw_list->AddLine(ImVec2(clip_max_x, pos_min.y), ImVec2(clip_max_x, pos_max.y), IM_COL32(255, 0, 0, 255));
+    // FIXME: We could technically remove (last_glyph->AdvanceX - last_glyph->X1) from text_size.x here and save a few pixels.
+    if (text_size.x > pos_max.x - pos_min.x)
+    {
+        // Hello wo...
+        // |       |   |
+        // min   max   ellipsis_max
+        //          <-> this is generally some padding value
+
+        const ImFont* font = draw_list->_Data->Font;
+        const float font_size = draw_list->_Data->FontSize;
+        const char* text_end_ellipsis = NULL;
+
+        ImWchar ellipsis_char = font->EllipsisChar;
+        int ellipsis_char_count = 1;
+        if (ellipsis_char == (ImWchar)-1)
+        {
+            ellipsis_char = font->DotChar;
+            ellipsis_char_count = 3;
+        }
+        const ImFontGlyph* glyph = font->FindGlyph(ellipsis_char);
+
+        float ellipsis_glyph_width = glyph->X1;                 // Width of the glyph with no padding on either side
+        float ellipsis_total_width = ellipsis_glyph_width;      // Full width of entire ellipsis
+
+        if (ellipsis_char_count > 1)
+        {
+            // Full ellipsis size without free spacing after it.
+            const float spacing_between_dots = 1.0f * (draw_list->_Data->FontSize / font->FontSize);
+            ellipsis_glyph_width = glyph->X1 - glyph->X0 + spacing_between_dots;
+            ellipsis_total_width = ellipsis_glyph_width * (float)ellipsis_char_count - spacing_between_dots;
+        }
+
+        // We can now claim the space between pos_max.x and ellipsis_max.x
+        const float text_avail_width = ImMax((ImMax(pos_max.x, ellipsis_max_x) - ellipsis_total_width) - pos_min.x, 1.0f);
+        float text_size_clipped_x = font->CalcTextSizeA(font_size, text_avail_width, 0.0f, text, text_end_full, &text_end_ellipsis).x;
+        if (text == text_end_ellipsis && text_end_ellipsis < text_end_full)
+        {
+            // Always display at least 1 character if there's no room for character + ellipsis
+            text_end_ellipsis = text + ImTextCountUtf8BytesFromChar(text, text_end_full);
+            text_size_clipped_x = font->CalcTextSizeA(font_size, FLT_MAX, 0.0f, text, text_end_ellipsis).x;
+        }
+        while (text_end_ellipsis > text && ImCharIsBlankA(text_end_ellipsis[-1]))
+        {
+            // Trim trailing space before ellipsis (FIXME: Supporting non-ascii blanks would be nice, for this we need a function to backtrack in UTF-8 text)
+            text_end_ellipsis--;
+            text_size_clipped_x -= font->CalcTextSizeA(font_size, FLT_MAX, 0.0f, text_end_ellipsis, text_end_ellipsis + 1).x; // Ascii blanks are always 1 byte
+        }
+
+        // Render text, render ellipsis
+        RenderTextClippedEx(draw_list, pos_min, ImVec2(clip_max_x, pos_max.y), text, text_end_ellipsis, &text_size, ImVec2(0.0f, 0.0f));
+        float ellipsis_x = pos_min.x + text_size_clipped_x;
+        if (ellipsis_x + ellipsis_total_width <= ellipsis_max_x)
+            for (int i = 0; i < ellipsis_char_count; i++)
+            {
+                font->RenderChar(draw_list, font_size, ImVec2(ellipsis_x, pos_min.y), GetColorU32(ImGuiCol_Text), ellipsis_char);
+                ellipsis_x += ellipsis_glyph_width;
+            }
+    }
+    else
+    {
+        RenderTextClippedEx(draw_list, pos_min, ImVec2(clip_max_x, pos_max.y), text, text_end_full, &text_size, ImVec2(0.0f, 0.0f));
+    }
+
+    if (g.LogEnabled)
+        LogRenderedText(&pos_min, text, text_end_full);
+}
+
+// Render a rectangle shaped with optional rounding and borders
+void ImGui::RenderFrame(ImVec2 p_min, ImVec2 p_max, ImU32 fill_col, bool border, float rounding)
+{
+    ImGuiContext& g = *GImGui;
+    ImGuiWindow* window = g.CurrentWindow;
+    window->DrawList->AddRectFilled(p_min, p_max, fill_col, rounding);
+    const float border_size = g.Style.FrameBorderSize;
+    if (border && border_size > 0.0f)
+    {
+        window->DrawList->AddRect(p_min + ImVec2(1, 1), p_max + ImVec2(1, 1), GetColorU32(ImGuiCol_BorderShadow), rounding, 0, border_size);
+        window->DrawList->AddRect(p_min, p_max, GetColorU32(ImGuiCol_Border), rounding, 0, border_size);
+    }
+}
+
+void ImGui::RenderFrameBorder(ImVec2 p_min, ImVec2 p_max, float rounding)
+{
+    ImGuiContext& g = *GImGui;
+    ImGuiWindow* window = g.CurrentWindow;
+    const float border_size = g.Style.FrameBorderSize;
+    if (border_size > 0.0f)
+    {
+        window->DrawList->AddRect(p_min + ImVec2(1, 1), p_max + ImVec2(1, 1), GetColorU32(ImGuiCol_BorderShadow), rounding, 0, border_size);
+        window->DrawList->AddRect(p_min, p_max, GetColorU32(ImGuiCol_Border), rounding, 0, border_size);
+    }
+}
+
+void ImGui::RenderNavHighlight(const ImRect& bb, ImGuiID id, ImGuiNavHighlightFlags flags)
+{
+    ImGuiContext& g = *GImGui;
+    if (id != g.NavId)
+        return;
+    if (g.NavDisableHighlight && !(flags & ImGuiNavHighlightFlags_AlwaysDraw))
+        return;
+    ImGuiWindow* window = g.CurrentWindow;
+    if (window->DC.NavHideHighlightOneFrame)
+        return;
+
+    float rounding = (flags & ImGuiNavHighlightFlags_NoRounding) ? 0.0f : g.Style.FrameRounding;
+    ImRect display_rect = bb;
+    display_rect.ClipWith(window->ClipRect);
+    if (flags & ImGuiNavHighlightFlags_TypeDefault)
+    {
+        const float THICKNESS = 2.0f;
+        const float DISTANCE = 3.0f + THICKNESS * 0.5f;
+        display_rect.Expand(ImVec2(DISTANCE, DISTANCE));
+        bool fully_visible = window->ClipRect.Contains(display_rect);
+        if (!fully_visible)
+            window->DrawList->PushClipRect(display_rect.Min, display_rect.Max);
+        window->DrawList->AddRect(display_rect.Min + ImVec2(THICKNESS * 0.5f, THICKNESS * 0.5f), display_rect.Max - ImVec2(THICKNESS * 0.5f, THICKNESS * 0.5f), GetColorU32(ImGuiCol_NavHighlight), rounding, 0, THICKNESS);
+        if (!fully_visible)
+            window->DrawList->PopClipRect();
+    }
+    if (flags & ImGuiNavHighlightFlags_TypeThin)
+    {
+        window->DrawList->AddRect(display_rect.Min, display_rect.Max, GetColorU32(ImGuiCol_NavHighlight), rounding, 0, 1.0f);
+    }
+}
+
+void ImGui::RenderMouseCursor(ImVec2 base_pos, float base_scale, ImGuiMouseCursor mouse_cursor, ImU32 col_fill, ImU32 col_border, ImU32 col_shadow)
+{
+    ImGuiContext& g = *GImGui;
+    IM_ASSERT(mouse_cursor > ImGuiMouseCursor_None && mouse_cursor < ImGuiMouseCursor_COUNT);
+    for (int n = 0; n < g.Viewports.Size; n++)
+    {
+        ImGuiViewportP* viewport = g.Viewports[n];
+        ImDrawList* draw_list = GetForegroundDrawList(viewport);
+        ImFontAtlas* font_atlas = draw_list->_Data->Font->ContainerAtlas;
+        ImVec2 offset, size, uv[4];
+        if (font_atlas->GetMouseCursorTexData(mouse_cursor, &offset, &size, &uv[0], &uv[2]))
+        {
+            const ImVec2 pos = base_pos - offset;
+            const float scale = base_scale;
+            ImTextureID tex_id = font_atlas->TexID;
+            draw_list->PushTextureID(tex_id);
+            draw_list->AddImage(tex_id, pos + ImVec2(1, 0) * scale, pos + (ImVec2(1, 0) + size) * scale, uv[2], uv[3], col_shadow);
+            draw_list->AddImage(tex_id, pos + ImVec2(2, 0) * scale, pos + (ImVec2(2, 0) + size) * scale, uv[2], uv[3], col_shadow);
+            draw_list->AddImage(tex_id, pos,                        pos + size * scale,                  uv[2], uv[3], col_border);
+            draw_list->AddImage(tex_id, pos,                        pos + size * scale,                  uv[0], uv[1], col_fill);
+            draw_list->PopTextureID();
+        }
+    }
+}
+
+
+//-----------------------------------------------------------------------------
+// [SECTION] MAIN CODE (most of the code! lots of stuff, needs tidying up!)
+//-----------------------------------------------------------------------------
+
+// ImGuiWindow is mostly a dumb struct. It merely has a constructor and a few helper methods
+ImGuiWindow::ImGuiWindow(ImGuiContext* context, const char* name) : DrawListInst(NULL)
+{
+    memset(this, 0, sizeof(*this));
+    Name = ImStrdup(name);
+    NameBufLen = (int)strlen(name) + 1;
+    ID = ImHashStr(name);
+    IDStack.push_back(ID);
+    MoveId = GetID("#MOVE");
+    ScrollTarget = ImVec2(FLT_MAX, FLT_MAX);
+    ScrollTargetCenterRatio = ImVec2(0.5f, 0.5f);
+    AutoFitFramesX = AutoFitFramesY = -1;
+    AutoPosLastDirection = ImGuiDir_None;
+    SetWindowPosAllowFlags = SetWindowSizeAllowFlags = SetWindowCollapsedAllowFlags = ImGuiCond_Always | ImGuiCond_Once | ImGuiCond_FirstUseEver | ImGuiCond_Appearing;
+    SetWindowPosVal = SetWindowPosPivot = ImVec2(FLT_MAX, FLT_MAX);
+    LastFrameActive = -1;
+    LastTimeActive = -1.0f;
+    FontWindowScale = 1.0f;
+    SettingsOffset = -1;
+    DrawList = &DrawListInst;
+    DrawList->_Data = &context->DrawListSharedData;
+    DrawList->_OwnerName = Name;
+}
+
+ImGuiWindow::~ImGuiWindow()
+{
+    IM_ASSERT(DrawList == &DrawListInst);
+    IM_DELETE(Name);
+    ColumnsStorage.clear_destruct();
+}
+
+ImGuiID ImGuiWindow::GetID(const char* str, const char* str_end)
+{
+    ImGuiID seed = IDStack.back();
+    ImGuiID id = ImHashStr(str, str_end ? (str_end - str) : 0, seed);
+    ImGuiContext& g = *GImGui;
+    if (g.DebugHookIdInfo == id)
+        ImGui::DebugHookIdInfo(id, ImGuiDataType_String, str, str_end);
+    return id;
+}
+
+ImGuiID ImGuiWindow::GetID(const void* ptr)
+{
+    ImGuiID seed = IDStack.back();
+    ImGuiID id = ImHashData(&ptr, sizeof(void*), seed);
+    ImGuiContext& g = *GImGui;
+    if (g.DebugHookIdInfo == id)
+        ImGui::DebugHookIdInfo(id, ImGuiDataType_Pointer, ptr, NULL);
+    return id;
+}
+
+ImGuiID ImGuiWindow::GetID(int n)
+{
+    ImGuiID seed = IDStack.back();
+    ImGuiID id = ImHashData(&n, sizeof(n), seed);
+    ImGuiContext& g = *GImGui;
+    if (g.DebugHookIdInfo == id)
+        ImGui::DebugHookIdInfo(id, ImGuiDataType_S32, (void*)(intptr_t)n, NULL);
+    return id;
+}
+
+// This is only used in rare/specific situations to manufacture an ID out of nowhere.
+ImGuiID ImGuiWindow::GetIDFromRectangle(const ImRect& r_abs)
+{
+    ImGuiID seed = IDStack.back();
+    ImRect r_rel = ImGui::WindowRectAbsToRel(this, r_abs);
+    ImGuiID id = ImHashData(&r_rel, sizeof(r_rel), seed);
+    return id;
+}
+
+static void SetCurrentWindow(ImGuiWindow* window)
+{
+    ImGuiContext& g = *GImGui;
+    g.CurrentWindow = window;
+    g.CurrentTable = window && window->DC.CurrentTableIdx != -1 ? g.Tables.GetByIndex(window->DC.CurrentTableIdx) : NULL;
+    if (window)
+        g.FontSize = g.DrawListSharedData.FontSize = window->CalcFontSize();
+}
+
+void ImGui::GcCompactTransientMiscBuffers()
+{
+    ImGuiContext& g = *GImGui;
+    g.ItemFlagsStack.clear();
+    g.GroupStack.clear();
+    TableGcCompactSettings();
+}
+
+// Free up/compact internal window buffers, we can use this when a window becomes unused.
+// Not freed:
+// - ImGuiWindow, ImGuiWindowSettings, Name, StateStorage, ColumnsStorage (may hold useful data)
+// This should have no noticeable visual effect. When the window reappear however, expect new allocation/buffer growth/copy cost.
+void ImGui::GcCompactTransientWindowBuffers(ImGuiWindow* window)
+{
+    window->MemoryCompacted = true;
+    window->MemoryDrawListIdxCapacity = window->DrawList->IdxBuffer.Capacity;
+    window->MemoryDrawListVtxCapacity = window->DrawList->VtxBuffer.Capacity;
+    window->IDStack.clear();
+    window->DrawList->_ClearFreeMemory();
+    window->DC.ChildWindows.clear();
+    window->DC.ItemWidthStack.clear();
+    window->DC.TextWrapPosStack.clear();
+}
+
+void ImGui::GcAwakeTransientWindowBuffers(ImGuiWindow* window)
+{
+    // We stored capacity of the ImDrawList buffer to reduce growth-caused allocation/copy when awakening.
+    // The other buffers tends to amortize much faster.
+    window->MemoryCompacted = false;
+    window->DrawList->IdxBuffer.reserve(window->MemoryDrawListIdxCapacity);
+    window->DrawList->VtxBuffer.reserve(window->MemoryDrawListVtxCapacity);
+    window->MemoryDrawListIdxCapacity = window->MemoryDrawListVtxCapacity = 0;
+}
+
+void ImGui::SetActiveID(ImGuiID id, ImGuiWindow* window)
+{
+    ImGuiContext& g = *GImGui;
+
+    // While most behaved code would make an effort to not steal active id during window move/drag operations,
+    // we at least need to be resilient to it. Cancelling the move is rather aggressive and users of 'master' branch
+    // may prefer the weird ill-defined half working situation ('docking' did assert), so may need to rework that.
+    if (g.MovingWindow != NULL && g.ActiveId == g.MovingWindow->MoveId)
+    {
+        IMGUI_DEBUG_LOG_ACTIVEID("SetActiveID() cancel MovingWindow\n");
+        g.MovingWindow = NULL;
+    }
+
+    // Set active id
+    g.ActiveIdIsJustActivated = (g.ActiveId != id);
+    if (g.ActiveIdIsJustActivated)
+    {
+        IMGUI_DEBUG_LOG_ACTIVEID("SetActiveID() old:0x%08X (window \"%s\") -> new:0x%08X (window \"%s\")\n", g.ActiveId, g.ActiveIdWindow ? g.ActiveIdWindow->Name : "", id, window ? window->Name : "");
+        g.ActiveIdTimer = 0.0f;
+        g.ActiveIdHasBeenPressedBefore = false;
+        g.ActiveIdHasBeenEditedBefore = false;
+        g.ActiveIdMouseButton = -1;
+        if (id != 0)
+        {
+            g.LastActiveId = id;
+            g.LastActiveIdTimer = 0.0f;
+        }
+    }
+    g.ActiveId = id;
+    g.ActiveIdAllowOverlap = false;
+    g.ActiveIdNoClearOnFocusLoss = false;
+    g.ActiveIdWindow = window;
+    g.ActiveIdHasBeenEditedThisFrame = false;
+    if (id)
+    {
+        g.ActiveIdIsAlive = id;
+        g.ActiveIdSource = (g.NavActivateId == id || g.NavActivateInputId == id || g.NavJustMovedToId == id) ? (ImGuiInputSource)ImGuiInputSource_Nav : ImGuiInputSource_Mouse;
+    }
+
+    // Clear declaration of inputs claimed by the widget
+    // (Please note that this is WIP and not all keys/inputs are thoroughly declared by all widgets yet)
+    g.ActiveIdUsingMouseWheel = false;
+    g.ActiveIdUsingNavDirMask = 0x00;
+    g.ActiveIdUsingNavInputMask = 0x00;
+    g.ActiveIdUsingKeyInputMask.ClearAllBits();
+}
+
+void ImGui::ClearActiveID()
+{
+    SetActiveID(0, NULL); // g.ActiveId = 0;
+}
+
+void ImGui::SetHoveredID(ImGuiID id)
+{
+    ImGuiContext& g = *GImGui;
+    g.HoveredId = id;
+    g.HoveredIdAllowOverlap = false;
+    g.HoveredIdUsingMouseWheel = false;
+    if (id != 0 && g.HoveredIdPreviousFrame != id)
+        g.HoveredIdTimer = g.HoveredIdNotActiveTimer = 0.0f;
+}
+
+ImGuiID ImGui::GetHoveredID()
+{
+    ImGuiContext& g = *GImGui;
+    return g.HoveredId ? g.HoveredId : g.HoveredIdPreviousFrame;
+}
+
+// This is called by ItemAdd().
+// Code not using ItemAdd() may need to call this manually otherwise ActiveId will be cleared. In IMGUI_VERSION_NUM < 18717 this was called by GetID().
+void ImGui::KeepAliveID(ImGuiID id)
+{
+    ImGuiContext& g = *GImGui;
+    if (g.ActiveId == id)
+        g.ActiveIdIsAlive = id;
+    if (g.ActiveIdPreviousFrame == id)
+        g.ActiveIdPreviousFrameIsAlive = true;
+}
+
+void ImGui::MarkItemEdited(ImGuiID id)
+{
+    // This marking is solely to be able to provide info for IsItemDeactivatedAfterEdit().
+    // ActiveId might have been released by the time we call this (as in the typical press/release button behavior) but still need need to fill the data.
+    ImGuiContext& g = *GImGui;
+    IM_ASSERT(g.ActiveId == id || g.ActiveId == 0 || g.DragDropActive);
+    IM_UNUSED(id); // Avoid unused variable warnings when asserts are compiled out.
+    //IM_ASSERT(g.CurrentWindow->DC.LastItemId == id);
+    g.ActiveIdHasBeenEditedThisFrame = true;
+    g.ActiveIdHasBeenEditedBefore = true;
+    g.LastItemData.StatusFlags |= ImGuiItemStatusFlags_Edited;
+}
+
+static inline bool IsWindowContentHoverable(ImGuiWindow* window, ImGuiHoveredFlags flags)
+{
+    // An active popup disable hovering on other windows (apart from its own children)
+    // FIXME-OPT: This could be cached/stored within the window.
+    ImGuiContext& g = *GImGui;
+    if (g.NavWindow)
+        if (ImGuiWindow* focused_root_window = g.NavWindow->RootWindow)
+            if (focused_root_window->WasActive && focused_root_window != window->RootWindow)
+            {
+                // For the purpose of those flags we differentiate "standard popup" from "modal popup"
+                // NB: The order of those two tests is important because Modal windows are also Popups.
+                if (focused_root_window->Flags & ImGuiWindowFlags_Modal)
+                    return false;
+                if ((focused_root_window->Flags & ImGuiWindowFlags_Popup) && !(flags & ImGuiHoveredFlags_AllowWhenBlockedByPopup))
+                    return false;
+            }
+    return true;
+}
+
+// This is roughly matching the behavior of internal-facing ItemHoverable()
+// - we allow hovering to be true when ActiveId==window->MoveID, so that clicking on non-interactive items such as a Text() item still returns true with IsItemHovered()
+// - this should work even for non-interactive items that have no ID, so we cannot use LastItemId
+bool ImGui::IsItemHovered(ImGuiHoveredFlags flags)
+{
+    ImGuiContext& g = *GImGui;
+    ImGuiWindow* window = g.CurrentWindow;
+    if (g.NavDisableMouseHover && !g.NavDisableHighlight && !(flags & ImGuiHoveredFlags_NoNavOverride))
+    {
+        if ((g.LastItemData.InFlags & ImGuiItemFlags_Disabled) && !(flags & ImGuiHoveredFlags_AllowWhenDisabled))
+            return false;
+        if (!IsItemFocused())
+            return false;
+    }
+    else
+    {
+        // Test for bounding box overlap, as updated as ItemAdd()
+        ImGuiItemStatusFlags status_flags = g.LastItemData.StatusFlags;
+        if (!(status_flags & ImGuiItemStatusFlags_HoveredRect))
+            return false;
+        IM_ASSERT((flags & (ImGuiHoveredFlags_AnyWindow | ImGuiHoveredFlags_RootWindow | ImGuiHoveredFlags_ChildWindows | ImGuiHoveredFlags_NoPopupHierarchy)) == 0);   // Flags not supported by this function
+
+        // Test if we are hovering the right window (our window could be behind another window)
+        // [2021/03/02] Reworked / reverted the revert, finally. Note we want e.g. BeginGroup/ItemAdd/EndGroup to work as well. (#3851)
+        // [2017/10/16] Reverted commit 344d48be3 and testing RootWindow instead. I believe it is correct to NOT test for RootWindow but this leaves us unable
+        // to use IsItemHovered() after EndChild() itself. Until a solution is found I believe reverting to the test from 2017/09/27 is safe since this was
+        // the test that has been running for a long while.
+        if (g.HoveredWindow != window && (status_flags & ImGuiItemStatusFlags_HoveredWindow) == 0)
+            if ((flags & ImGuiHoveredFlags_AllowWhenOverlapped) == 0)
+                return false;
+
+        // Test if another item is active (e.g. being dragged)
+        if ((flags & ImGuiHoveredFlags_AllowWhenBlockedByActiveItem) == 0)
+            if (g.ActiveId != 0 && g.ActiveId != g.LastItemData.ID && !g.ActiveIdAllowOverlap && g.ActiveId != window->MoveId)
+                return false;
+
+        // Test if interactions on this window are blocked by an active popup or modal.
+        // The ImGuiHoveredFlags_AllowWhenBlockedByPopup flag will be tested here.
+        if (!IsWindowContentHoverable(window, flags))
+            return false;
+
+        // Test if the item is disabled
+        if ((g.LastItemData.InFlags & ImGuiItemFlags_Disabled) && !(flags & ImGuiHoveredFlags_AllowWhenDisabled))
+            return false;
+
+        // Special handling for calling after Begin() which represent the title bar or tab.
+        // When the window is collapsed (SkipItems==true) that last item will never be overwritten so we need to detect the case.
+        if (g.LastItemData.ID == window->MoveId && window->WriteAccessed)
+            return false;
+    }
+
+    return true;
+}
+
+// Internal facing ItemHoverable() used when submitting widgets. Differs slightly from IsItemHovered().
+bool ImGui::ItemHoverable(const ImRect& bb, ImGuiID id)
+{
+    ImGuiContext& g = *GImGui;
+    if (g.HoveredId != 0 && g.HoveredId != id && !g.HoveredIdAllowOverlap)
+        return false;
+
+    ImGuiWindow* window = g.CurrentWindow;
+    if (g.HoveredWindow != window)
+        return false;
+    if (g.ActiveId != 0 && g.ActiveId != id && !g.ActiveIdAllowOverlap)
+        return false;
+    if (!IsMouseHoveringRect(bb.Min, bb.Max))
+        return false;
+    if (!IsWindowContentHoverable(window, ImGuiHoveredFlags_None))
+    {
+        g.HoveredIdDisabled = true;
+        return false;
+    }
+
+    // We exceptionally allow this function to be called with id==0 to allow using it for easy high-level
+    // hover test in widgets code. We could also decide to split this function is two.
+    if (id != 0)
+        SetHoveredID(id);
+
+    // When disabled we'll return false but still set HoveredId
+    ImGuiItemFlags item_flags = (g.LastItemData.ID == id ? g.LastItemData.InFlags : g.CurrentItemFlags);
+    if (item_flags & ImGuiItemFlags_Disabled)
+    {
+        // Release active id if turning disabled
+        if (g.ActiveId == id)
+            ClearActiveID();
+        g.HoveredIdDisabled = true;
+        return false;
+    }
+
+    if (id != 0)
+    {
+        // [DEBUG] Item Picker tool!
+        // We perform the check here because SetHoveredID() is not frequently called (1~ time a frame), making
+        // the cost of this tool near-zero. We can get slightly better call-stack and support picking non-hovered
+        // items if we perform the test in ItemAdd(), but that would incur a small runtime cost.
+        // #define IMGUI_DEBUG_TOOL_ITEM_PICKER_EX in imconfig.h if you want this check to also be performed in ItemAdd().
+        if (g.DebugItemPickerActive && g.HoveredIdPreviousFrame == id)
+            GetForegroundDrawList()->AddRect(bb.Min, bb.Max, IM_COL32(255, 255, 0, 255));
+        if (g.DebugItemPickerBreakId == id)
+            IM_DEBUG_BREAK();
+    }
+
+    if (g.NavDisableMouseHover)
+        return false;
+
+    return true;
+}
+
+bool ImGui::IsClippedEx(const ImRect& bb, ImGuiID id)
+{
+    ImGuiContext& g = *GImGui;
+    ImGuiWindow* window = g.CurrentWindow;
+    if (!bb.Overlaps(window->ClipRect))
+        if (id == 0 || (id != g.ActiveId && id != g.NavId))
+            if (!g.LogEnabled)
+                return true;
+    return false;
+}
+
+// This is also inlined in ItemAdd()
+// Note: if ImGuiItemStatusFlags_HasDisplayRect is set, user needs to set window->DC.LastItemDisplayRect!
+void ImGui::SetLastItemData(ImGuiID item_id, ImGuiItemFlags in_flags, ImGuiItemStatusFlags item_flags, const ImRect& item_rect)
+{
+    ImGuiContext& g = *GImGui;
+    g.LastItemData.ID = item_id;
+    g.LastItemData.InFlags = in_flags;
+    g.LastItemData.StatusFlags = item_flags;
+    g.LastItemData.Rect = item_rect;
+}
+
+float ImGui::CalcWrapWidthForPos(const ImVec2& pos, float wrap_pos_x)
+{
+    if (wrap_pos_x < 0.0f)
+        return 0.0f;
+
+    ImGuiContext& g = *GImGui;
+    ImGuiWindow* window = g.CurrentWindow;
+    if (wrap_pos_x == 0.0f)
+    {
+        // We could decide to setup a default wrapping max point for auto-resizing windows,
+        // or have auto-wrap (with unspecified wrapping pos) behave as a ContentSize extending function?
+        //if (window->Hidden && (window->Flags & ImGuiWindowFlags_AlwaysAutoResize))
+        //    wrap_pos_x = ImMax(window->WorkRect.Min.x + g.FontSize * 10.0f, window->WorkRect.Max.x);
+        //else
+        wrap_pos_x = window->WorkRect.Max.x;
+    }
+    else if (wrap_pos_x > 0.0f)
+    {
+        wrap_pos_x += window->Pos.x - window->Scroll.x; // wrap_pos_x is provided is window local space
+    }
+
+    return ImMax(wrap_pos_x - pos.x, 1.0f);
+}
+
+// IM_ALLOC() == ImGui::MemAlloc()
+void* ImGui::MemAlloc(size_t size)
+{
+    if (ImGuiContext* ctx = GImGui)
+        ctx->IO.MetricsActiveAllocations++;
+    return (*GImAllocatorAllocFunc)(size, GImAllocatorUserData);
+}
+
+// IM_FREE() == ImGui::MemFree()
+void ImGui::MemFree(void* ptr)
+{
+    if (ptr)
+        if (ImGuiContext* ctx = GImGui)
+            ctx->IO.MetricsActiveAllocations--;
+    return (*GImAllocatorFreeFunc)(ptr, GImAllocatorUserData);
+}
+
+const char* ImGui::GetClipboardText()
+{
+    ImGuiContext& g = *GImGui;
+    return g.IO.GetClipboardTextFn ? g.IO.GetClipboardTextFn(g.IO.ClipboardUserData) : "";
+}
+
+void ImGui::SetClipboardText(const char* text)
+{
+    ImGuiContext& g = *GImGui;
+    if (g.IO.SetClipboardTextFn)
+        g.IO.SetClipboardTextFn(g.IO.ClipboardUserData, text);
+}
+
+const char* ImGui::GetVersion()
+{
+    return IMGUI_VERSION;
+}
+
+// Internal state access - if you want to share Dear ImGui state between modules (e.g. DLL) or allocate it yourself
+// Note that we still point to some static data and members (such as GFontAtlas), so the state instance you end up using will point to the static data within its module
+ImGuiContext* ImGui::GetCurrentContext()
+{
+    return GImGui;
+}
+
+void ImGui::SetCurrentContext(ImGuiContext* ctx)
+{
+#ifdef IMGUI_SET_CURRENT_CONTEXT_FUNC
+    IMGUI_SET_CURRENT_CONTEXT_FUNC(ctx); // For custom thread-based hackery you may want to have control over this.
+#else
+    GImGui = ctx;
+#endif
+}
+
+void ImGui::SetAllocatorFunctions(ImGuiMemAllocFunc alloc_func, ImGuiMemFreeFunc free_func, void* user_data)
+{
+    GImAllocatorAllocFunc = alloc_func;
+    GImAllocatorFreeFunc = free_func;
+    GImAllocatorUserData = user_data;
+}
+
+// This is provided to facilitate copying allocators from one static/DLL boundary to another (e.g. retrieve default allocator of your executable address space)
+void ImGui::GetAllocatorFunctions(ImGuiMemAllocFunc* p_alloc_func, ImGuiMemFreeFunc* p_free_func, void** p_user_data)
+{
+    *p_alloc_func = GImAllocatorAllocFunc;
+    *p_free_func = GImAllocatorFreeFunc;
+    *p_user_data = GImAllocatorUserData;
+}
+
+ImGuiContext* ImGui::CreateContext(ImFontAtlas* shared_font_atlas)
+{
+    ImGuiContext* prev_ctx = GetCurrentContext();
+    ImGuiContext* ctx = IM_NEW(ImGuiContext)(shared_font_atlas);
+    SetCurrentContext(ctx);
+    Initialize();
+    if (prev_ctx != NULL)
+        SetCurrentContext(prev_ctx); // Restore previous context if any, else keep new one.
+    return ctx;
+}
+
+void ImGui::DestroyContext(ImGuiContext* ctx)
+{
+    ImGuiContext* prev_ctx = GetCurrentContext();
+    if (ctx == NULL) //-V1051
+        ctx = prev_ctx;
+    SetCurrentContext(ctx);
+    Shutdown();
+    SetCurrentContext((prev_ctx != ctx) ? prev_ctx : NULL);
+    IM_DELETE(ctx);
+}
+
+// No specific ordering/dependency support, will see as needed
+ImGuiID ImGui::AddContextHook(ImGuiContext* ctx, const ImGuiContextHook* hook)
+{
+    ImGuiContext& g = *ctx;
+    IM_ASSERT(hook->Callback != NULL && hook->HookId == 0 && hook->Type != ImGuiContextHookType_PendingRemoval_);
+    g.Hooks.push_back(*hook);
+    g.Hooks.back().HookId = ++g.HookIdNext;
+    return g.HookIdNext;
+}
+
+// Deferred removal, avoiding issue with changing vector while iterating it
+void ImGui::RemoveContextHook(ImGuiContext* ctx, ImGuiID hook_id)
+{
+    ImGuiContext& g = *ctx;
+    IM_ASSERT(hook_id != 0);
+    for (int n = 0; n < g.Hooks.Size; n++)
+        if (g.Hooks[n].HookId == hook_id)
+            g.Hooks[n].Type = ImGuiContextHookType_PendingRemoval_;
+}
+
+// Call context hooks (used by e.g. test engine)
+// We assume a small number of hooks so all stored in same array
+void ImGui::CallContextHooks(ImGuiContext* ctx, ImGuiContextHookType hook_type)
+{
+    ImGuiContext& g = *ctx;
+    for (int n = 0; n < g.Hooks.Size; n++)
+        if (g.Hooks[n].Type == hook_type)
+            g.Hooks[n].Callback(&g, &g.Hooks[n]);
+}
+
+ImGuiIO& ImGui::GetIO()
+{
+    IM_ASSERT(GImGui != NULL && "No current context. Did you call ImGui::CreateContext() and ImGui::SetCurrentContext() ?");
+    return GImGui->IO;
+}
+
+// Pass this to your backend rendering function! Valid after Render() and until the next call to NewFrame()
+ImDrawData* ImGui::GetDrawData()
+{
+    ImGuiContext& g = *GImGui;
+    ImGuiViewportP* viewport = g.Viewports[0];
+    return viewport->DrawDataP.Valid ? &viewport->DrawDataP : NULL;
+}
+
+double ImGui::GetTime()
+{
+    return GImGui->Time;
+}
+
+int ImGui::GetFrameCount()
+{
+    return GImGui->FrameCount;
+}
+
+static ImDrawList* GetViewportDrawList(ImGuiViewportP* viewport, size_t drawlist_no, const char* drawlist_name)
+{
+    // Create the draw list on demand, because they are not frequently used for all viewports
+    ImGuiContext& g = *GImGui;
+    IM_ASSERT(drawlist_no < IM_ARRAYSIZE(viewport->DrawLists));
+    ImDrawList* draw_list = viewport->DrawLists[drawlist_no];
+    if (draw_list == NULL)
+    {
+        draw_list = IM_NEW(ImDrawList)(&g.DrawListSharedData);
+        draw_list->_OwnerName = drawlist_name;
+        viewport->DrawLists[drawlist_no] = draw_list;
+    }
+
+    // Our ImDrawList system requires that there is always a command
+    if (viewport->DrawListsLastFrame[drawlist_no] != g.FrameCount)
+    {
+        draw_list->_ResetForNewFrame();
+        draw_list->PushTextureID(g.IO.Fonts->TexID);
+        draw_list->PushClipRect(viewport->Pos, viewport->Pos + viewport->Size, false);
+        viewport->DrawListsLastFrame[drawlist_no] = g.FrameCount;
+    }
+    return draw_list;
+}
+
+ImDrawList* ImGui::GetBackgroundDrawList(ImGuiViewport* viewport)
+{
+    return GetViewportDrawList((ImGuiViewportP*)viewport, 0, "##Background");
+}
+
+ImDrawList* ImGui::GetBackgroundDrawList()
+{
+    ImGuiContext& g = *GImGui;
+    return GetBackgroundDrawList(g.Viewports[0]);
+}
+
+ImDrawList* ImGui::GetForegroundDrawList(ImGuiViewport* viewport)
+{
+    return GetViewportDrawList((ImGuiViewportP*)viewport, 1, "##Foreground");
+}
+
+ImDrawList* ImGui::GetForegroundDrawList()
+{
+    ImGuiContext& g = *GImGui;
+    return GetForegroundDrawList(g.Viewports[0]);
+}
+
+ImDrawListSharedData* ImGui::GetDrawListSharedData()
+{
+    return &GImGui->DrawListSharedData;
+}
+
+void ImGui::StartMouseMovingWindow(ImGuiWindow* window)
+{
+    // Set ActiveId even if the _NoMove flag is set. Without it, dragging away from a window with _NoMove would activate hover on other windows.
+    // We _also_ call this when clicking in a window empty space when io.ConfigWindowsMoveFromTitleBarOnly is set, but clear g.MovingWindow afterward.
+    // This is because we want ActiveId to be set even when the window is not permitted to move.
+    ImGuiContext& g = *GImGui;
+    FocusWindow(window);
+    SetActiveID(window->MoveId, window);
+    g.NavDisableHighlight = true;
+    g.ActiveIdClickOffset = g.IO.MouseClickedPos[0] - window->RootWindow->Pos;
+    g.ActiveIdNoClearOnFocusLoss = true;
+    SetActiveIdUsingNavAndKeys();
+
+    bool can_move_window = true;
+    if ((window->Flags & ImGuiWindowFlags_NoMove) || (window->RootWindow->Flags & ImGuiWindowFlags_NoMove))
+        can_move_window = false;
+    if (can_move_window)
+        g.MovingWindow = window;
+}
+
+// Handle mouse moving window
+// Note: moving window with the navigation keys (Square + d-pad / CTRL+TAB + Arrows) are processed in NavUpdateWindowing()
+// FIXME: We don't have strong guarantee that g.MovingWindow stay synched with g.ActiveId == g.MovingWindow->MoveId.
+// This is currently enforced by the fact that BeginDragDropSource() is setting all g.ActiveIdUsingXXXX flags to inhibit navigation inputs,
+// but if we should more thoroughly test cases where g.ActiveId or g.MovingWindow gets changed and not the other.
+void ImGui::UpdateMouseMovingWindowNewFrame()
+{
+    ImGuiContext& g = *GImGui;
+    if (g.MovingWindow != NULL)
+    {
+        // We actually want to move the root window. g.MovingWindow == window we clicked on (could be a child window).
+        // We track it to preserve Focus and so that generally ActiveIdWindow == MovingWindow and ActiveId == MovingWindow->MoveId for consistency.
+        KeepAliveID(g.ActiveId);
+        IM_ASSERT(g.MovingWindow && g.MovingWindow->RootWindow);
+        ImGuiWindow* moving_window = g.MovingWindow->RootWindow;
+        if (g.IO.MouseDown[0] && IsMousePosValid(&g.IO.MousePos))
+        {
+            ImVec2 pos = g.IO.MousePos - g.ActiveIdClickOffset;
+            SetWindowPos(moving_window, pos, ImGuiCond_Always);
+            FocusWindow(g.MovingWindow);
+        }
+        else
+        {
+            g.MovingWindow = NULL;
+            ClearActiveID();
+        }
+    }
+    else
+    {
+        // When clicking/dragging from a window that has the _NoMove flag, we still set the ActiveId in order to prevent hovering others.
+        if (g.ActiveIdWindow && g.ActiveIdWindow->MoveId == g.ActiveId)
+        {
+            KeepAliveID(g.ActiveId);
+            if (!g.IO.MouseDown[0])
+                ClearActiveID();
+        }
+    }
+}
+
+// Initiate moving window when clicking on empty space or title bar.
+// Handle left-click and right-click focus.
+void ImGui::UpdateMouseMovingWindowEndFrame()
+{
+    ImGuiContext& g = *GImGui;
+    if (g.ActiveId != 0 || g.HoveredId != 0)
+        return;
+
+    // Unless we just made a window/popup appear
+    if (g.NavWindow && g.NavWindow->Appearing)
+        return;
+
+    // Click on empty space to focus window and start moving
+    // (after we're done with all our widgets)
+    if (g.IO.MouseClicked[0])
+    {
+        // Handle the edge case of a popup being closed while clicking in its empty space.
+        // If we try to focus it, FocusWindow() > ClosePopupsOverWindow() will accidentally close any parent popups because they are not linked together any more.
+        ImGuiWindow* root_window = g.HoveredWindow ? g.HoveredWindow->RootWindow : NULL;
+        const bool is_closed_popup = root_window && (root_window->Flags & ImGuiWindowFlags_Popup) && !IsPopupOpen(root_window->PopupId, ImGuiPopupFlags_AnyPopupLevel);
+
+        if (root_window != NULL && !is_closed_popup)
+        {
+            StartMouseMovingWindow(g.HoveredWindow); //-V595
+
+            // Cancel moving if clicked outside of title bar
+            if (g.IO.ConfigWindowsMoveFromTitleBarOnly && !(root_window->Flags & ImGuiWindowFlags_NoTitleBar))
+                if (!root_window->TitleBarRect().Contains(g.IO.MouseClickedPos[0]))
+                    g.MovingWindow = NULL;
+
+            // Cancel moving if clicked over an item which was disabled or inhibited by popups (note that we know HoveredId == 0 already)
+            if (g.HoveredIdDisabled)
+                g.MovingWindow = NULL;
+        }
+        else if (root_window == NULL && g.NavWindow != NULL && GetTopMostPopupModal() == NULL)
+        {
+            // Clicking on void disable focus
+            FocusWindow(NULL);
+        }
+    }
+
+    // With right mouse button we close popups without changing focus based on where the mouse is aimed
+    // Instead, focus will be restored to the window under the bottom-most closed popup.
+    // (The left mouse button path calls FocusWindow on the hovered window, which will lead NewFrame->ClosePopupsOverWindow to trigger)
+    if (g.IO.MouseClicked[1])
+    {
+        // Find the top-most window between HoveredWindow and the top-most Modal Window.
+        // This is where we can trim the popup stack.
+        ImGuiWindow* modal = GetTopMostPopupModal();
+        bool hovered_window_above_modal = g.HoveredWindow && (modal == NULL || IsWindowAbove(g.HoveredWindow, modal));
+        ClosePopupsOverWindow(hovered_window_above_modal ? g.HoveredWindow : modal, true);
+    }
+}
+
+static bool IsWindowActiveAndVisible(ImGuiWindow* window)
+{
+    return (window->Active) && (!window->Hidden);
+}
+
+static void ImGui::UpdateKeyboardInputs()
+{
+    ImGuiContext& g = *GImGui;
+    ImGuiIO& io = g.IO;
+
+    // Import legacy keys or verify they are not used
+#ifndef IMGUI_DISABLE_OBSOLETE_KEYIO
+    if (io.BackendUsingLegacyKeyArrays == 0)
+    {
+        // Backend used new io.AddKeyEvent() API: Good! Verify that old arrays are never written to externally.
+        for (int n = 0; n < ImGuiKey_LegacyNativeKey_END; n++)
+            IM_ASSERT((io.KeysDown[n] == false || IsKeyDown(n)) && "Backend needs to either only use io.AddKeyEvent(), either only fill legacy io.KeysDown[] + io.KeyMap[]. Not both!");
+    }
+    else
+    {
+        if (g.FrameCount == 0)
+            for (int n = ImGuiKey_LegacyNativeKey_BEGIN; n < ImGuiKey_LegacyNativeKey_END; n++)
+                IM_ASSERT(g.IO.KeyMap[n] == -1 && "Backend is not allowed to write to io.KeyMap[0..511]!");
+
+        // Build reverse KeyMap (Named -> Legacy)
+        for (int n = ImGuiKey_NamedKey_BEGIN; n < ImGuiKey_NamedKey_END; n++)
+            if (io.KeyMap[n] != -1)
+            {
+                IM_ASSERT(IsLegacyKey((ImGuiKey)io.KeyMap[n]));
+                io.KeyMap[io.KeyMap[n]] = n;
+            }
+
+        // Import legacy keys into new ones
+        for (int n = ImGuiKey_LegacyNativeKey_BEGIN; n < ImGuiKey_LegacyNativeKey_END; n++)
+            if (io.KeysDown[n] || io.BackendUsingLegacyKeyArrays == 1)
+            {
+                const ImGuiKey key = (ImGuiKey)(io.KeyMap[n] != -1 ? io.KeyMap[n] : n);
+                IM_ASSERT(io.KeyMap[n] == -1 || IsNamedKey(key));
+                io.KeysData[key].Down = io.KeysDown[n];
+                if (key != n)
+                    io.KeysDown[key] = io.KeysDown[n]; // Allow legacy code using io.KeysDown[GetKeyIndex()] with old backends
+                io.BackendUsingLegacyKeyArrays = 1;
+            }
+        if (io.BackendUsingLegacyKeyArrays == 1)
+        {
+            io.KeysData[ImGuiKey_ModCtrl].Down = io.KeyCtrl;
+            io.KeysData[ImGuiKey_ModShift].Down = io.KeyShift;
+            io.KeysData[ImGuiKey_ModAlt].Down = io.KeyAlt;
+            io.KeysData[ImGuiKey_ModSuper].Down = io.KeySuper;
+        }
+    }
+#endif
+
+    // Synchronize io.KeyMods with individual modifiers io.KeyXXX bools
+    io.KeyMods = GetMergedModFlags();
+
+    // Clear gamepad data if disabled
+    if ((io.BackendFlags & ImGuiBackendFlags_HasGamepad) == 0)
+        for (int i = ImGuiKey_Gamepad_BEGIN; i < ImGuiKey_Gamepad_END; i++)
+        {
+            io.KeysData[i - ImGuiKey_KeysData_OFFSET].Down = false;
+            io.KeysData[i - ImGuiKey_KeysData_OFFSET].AnalogValue = 0.0f;
+        }
+
+    // Update keys
+    for (int i = 0; i < IM_ARRAYSIZE(io.KeysData); i++)
+    {
+        ImGuiKeyData* key_data = &io.KeysData[i];
+        key_data->DownDurationPrev = key_data->DownDuration;
+        key_data->DownDuration = key_data->Down ? (key_data->DownDuration < 0.0f ? 0.0f : key_data->DownDuration + io.DeltaTime) : -1.0f;
+    }
+}
+
+static void ImGui::UpdateMouseInputs()
+{
+    ImGuiContext& g = *GImGui;
+    ImGuiIO& io = g.IO;
+
+    // Round mouse position to avoid spreading non-rounded position (e.g. UpdateManualResize doesn't support them well)
+    if (IsMousePosValid(&io.MousePos))
+        io.MousePos = g.MouseLastValidPos = ImFloorSigned(io.MousePos);
+
+    // If mouse just appeared or disappeared (usually denoted by -FLT_MAX components) we cancel out movement in MouseDelta
+    if (IsMousePosValid(&io.MousePos) && IsMousePosValid(&io.MousePosPrev))
+        io.MouseDelta = io.MousePos - io.MousePosPrev;
+    else
+        io.MouseDelta = ImVec2(0.0f, 0.0f);
+
+    // If mouse moved we re-enable mouse hovering in case it was disabled by gamepad/keyboard. In theory should use a >0.0f threshold but would need to reset in everywhere we set this to true.
+    if (io.MouseDelta.x != 0.0f || io.MouseDelta.y != 0.0f)
+        g.NavDisableMouseHover = false;
+
+    io.MousePosPrev = io.MousePos;
+    for (int i = 0; i < IM_ARRAYSIZE(io.MouseDown); i++)
+    {
+        io.MouseClicked[i] = io.MouseDown[i] && io.MouseDownDuration[i] < 0.0f;
+        io.MouseClickedCount[i] = 0; // Will be filled below
+        io.MouseReleased[i] = !io.MouseDown[i] && io.MouseDownDuration[i] >= 0.0f;
+        io.MouseDownDurationPrev[i] = io.MouseDownDuration[i];
+        io.MouseDownDuration[i] = io.MouseDown[i] ? (io.MouseDownDuration[i] < 0.0f ? 0.0f : io.MouseDownDuration[i] + io.DeltaTime) : -1.0f;
+        if (io.MouseClicked[i])
+        {
+            bool is_repeated_click = false;
+            if ((float)(g.Time - io.MouseClickedTime[i]) < io.MouseDoubleClickTime)
+            {
+                ImVec2 delta_from_click_pos = IsMousePosValid(&io.MousePos) ? (io.MousePos - io.MouseClickedPos[i]) : ImVec2(0.0f, 0.0f);
+                if (ImLengthSqr(delta_from_click_pos) < io.MouseDoubleClickMaxDist * io.MouseDoubleClickMaxDist)
+                    is_repeated_click = true;
+            }
+            if (is_repeated_click)
+                io.MouseClickedLastCount[i]++;
+            else
+                io.MouseClickedLastCount[i] = 1;
+            io.MouseClickedTime[i] = g.Time;
+            io.MouseClickedPos[i] = io.MousePos;
+            io.MouseClickedCount[i] = io.MouseClickedLastCount[i];
+            io.MouseDragMaxDistanceSqr[i] = 0.0f;
+        }
+        else if (io.MouseDown[i])
+        {
+            // Maintain the maximum distance we reaching from the initial click position, which is used with dragging threshold
+            float delta_sqr_click_pos = IsMousePosValid(&io.MousePos) ? ImLengthSqr(io.MousePos - io.MouseClickedPos[i]) : 0.0f;
+            io.MouseDragMaxDistanceSqr[i] = ImMax(io.MouseDragMaxDistanceSqr[i], delta_sqr_click_pos);
+        }
+
+        // We provide io.MouseDoubleClicked[] as a legacy service
+        io.MouseDoubleClicked[i] = (io.MouseClickedCount[i] == 2);
+
+        // Clicking any mouse button reactivate mouse hovering which may have been deactivated by gamepad/keyboard navigation
+        if (io.MouseClicked[i])
+            g.NavDisableMouseHover = false;
+    }
+}
+
+static void StartLockWheelingWindow(ImGuiWindow* window)
+{
+    ImGuiContext& g = *GImGui;
+    if (g.WheelingWindow == window)
+        return;
+    g.WheelingWindow = window;
+    g.WheelingWindowRefMousePos = g.IO.MousePos;
+    g.WheelingWindowTimer = WINDOWS_MOUSE_WHEEL_SCROLL_LOCK_TIMER;
+}
+
+void ImGui::UpdateMouseWheel()
+{
+    ImGuiContext& g = *GImGui;
+
+    // Reset the locked window if we move the mouse or after the timer elapses
+    if (g.WheelingWindow != NULL)
+    {
+        g.WheelingWindowTimer -= g.IO.DeltaTime;
+        if (IsMousePosValid() && ImLengthSqr(g.IO.MousePos - g.WheelingWindowRefMousePos) > g.IO.MouseDragThreshold * g.IO.MouseDragThreshold)
+            g.WheelingWindowTimer = 0.0f;
+        if (g.WheelingWindowTimer <= 0.0f)
+        {
+            g.WheelingWindow = NULL;
+            g.WheelingWindowTimer = 0.0f;
+        }
+    }
+
+    float wheel_x = g.IO.MouseWheelH;
+    float wheel_y = g.IO.MouseWheel;
+    if (wheel_x == 0.0f && wheel_y == 0.0f)
+        return;
+
+    if ((g.ActiveId != 0 && g.ActiveIdUsingMouseWheel) || (g.HoveredIdPreviousFrame != 0 && g.HoveredIdPreviousFrameUsingMouseWheel))
+        return;
+
+    ImGuiWindow* window = g.WheelingWindow ? g.WheelingWindow : g.HoveredWindow;
+    if (!window || window->Collapsed)
+        return;
+
+    // Zoom / Scale window
+    // FIXME-OBSOLETE: This is an old feature, it still works but pretty much nobody is using it and may be best redesigned.
+    if (wheel_y != 0.0f && g.IO.KeyCtrl && g.IO.FontAllowUserScaling)
+    {
+        StartLockWheelingWindow(window);
+        const float new_font_scale = ImClamp(window->FontWindowScale + g.IO.MouseWheel * 0.10f, 0.50f, 2.50f);
+        const float scale = new_font_scale / window->FontWindowScale;
+        window->FontWindowScale = new_font_scale;
+        if (window == window->RootWindow)
+        {
+            const ImVec2 offset = window->Size * (1.0f - scale) * (g.IO.MousePos - window->Pos) / window->Size;
+            SetWindowPos(window, window->Pos + offset, 0);
+            window->Size = ImFloor(window->Size * scale);
+            window->SizeFull = ImFloor(window->SizeFull * scale);
+        }
+        return;
+    }
+
+    // Mouse wheel scrolling
+    // If a child window has the ImGuiWindowFlags_NoScrollWithMouse flag, we give a chance to scroll its parent
+    if (g.IO.KeyCtrl)
+        return;
+
+    // As a standard behavior holding SHIFT while using Vertical Mouse Wheel triggers Horizontal scroll instead
+    // (we avoid doing it on OSX as it the OS input layer handles this already)
+    const bool swap_axis = g.IO.KeyShift && !g.IO.ConfigMacOSXBehaviors;
+    if (swap_axis)
+    {
+        wheel_x = wheel_y;
+        wheel_y = 0.0f;
+    }
+
+    // Vertical Mouse Wheel scrolling
+    if (wheel_y != 0.0f)
+    {
+        StartLockWheelingWindow(window);
+        while ((window->Flags & ImGuiWindowFlags_ChildWindow) && ((window->ScrollMax.y == 0.0f) || ((window->Flags & ImGuiWindowFlags_NoScrollWithMouse) && !(window->Flags & ImGuiWindowFlags_NoMouseInputs))))
+            window = window->ParentWindow;
+        if (!(window->Flags & ImGuiWindowFlags_NoScrollWithMouse) && !(window->Flags & ImGuiWindowFlags_NoMouseInputs))
+        {
+            float max_step = window->InnerRect.GetHeight() * 0.67f;
+            float scroll_step = ImFloor(ImMin(5 * window->CalcFontSize(), max_step));
+            SetScrollY(window, window->Scroll.y - wheel_y * scroll_step);
+        }
+    }
+
+    // Horizontal Mouse Wheel scrolling, or Vertical Mouse Wheel w/ Shift held
+    if (wheel_x != 0.0f)
+    {
+        StartLockWheelingWindow(window);
+        while ((window->Flags & ImGuiWindowFlags_ChildWindow) && ((window->ScrollMax.x == 0.0f) || ((window->Flags & ImGuiWindowFlags_NoScrollWithMouse) && !(window->Flags & ImGuiWindowFlags_NoMouseInputs))))
+            window = window->ParentWindow;
+        if (!(window->Flags & ImGuiWindowFlags_NoScrollWithMouse) && !(window->Flags & ImGuiWindowFlags_NoMouseInputs))
+        {
+            float max_step = window->InnerRect.GetWidth() * 0.67f;
+            float scroll_step = ImFloor(ImMin(2 * window->CalcFontSize(), max_step));
+            SetScrollX(window, window->Scroll.x - wheel_x * scroll_step);
+        }
+    }
+}
+
+// The reason this is exposed in imgui_internal.h is: on touch-based system that don't have hovering, we want to dispatch inputs to the right target (imgui vs imgui+app)
+void ImGui::UpdateHoveredWindowAndCaptureFlags()
+{
+    ImGuiContext& g = *GImGui;
+    ImGuiIO& io = g.IO;
+    g.WindowsHoverPadding = ImMax(g.Style.TouchExtraPadding, ImVec2(WINDOWS_HOVER_PADDING, WINDOWS_HOVER_PADDING));
+
+    // Find the window hovered by mouse:
+    // - Child windows can extend beyond the limit of their parent so we need to derive HoveredRootWindow from HoveredWindow.
+    // - When moving a window we can skip the search, which also conveniently bypasses the fact that window->WindowRectClipped is lagging as this point of the frame.
+    // - We also support the moved window toggling the NoInputs flag after moving has started in order to be able to detect windows below it, which is useful for e.g. docking mechanisms.
+    bool clear_hovered_windows = false;
+    FindHoveredWindow();
+
+    // Modal windows prevents mouse from hovering behind them.
+    ImGuiWindow* modal_window = GetTopMostPopupModal();
+    if (modal_window && g.HoveredWindow && !IsWindowWithinBeginStackOf(g.HoveredWindow->RootWindow, modal_window))
+        clear_hovered_windows = true;
+
+    // Disabled mouse?
+    if (io.ConfigFlags & ImGuiConfigFlags_NoMouse)
+        clear_hovered_windows = true;
+
+    // We track click ownership. When clicked outside of a window the click is owned by the application and
+    // won't report hovering nor request capture even while dragging over our windows afterward.
+    const bool has_open_popup = (g.OpenPopupStack.Size > 0);
+    const bool has_open_modal = (modal_window != NULL);
+    int mouse_earliest_down = -1;
+    bool mouse_any_down = false;
+    for (int i = 0; i < IM_ARRAYSIZE(io.MouseDown); i++)
+    {
+        if (io.MouseClicked[i])
+        {
+            io.MouseDownOwned[i] = (g.HoveredWindow != NULL) || has_open_popup;
+            io.MouseDownOwnedUnlessPopupClose[i] = (g.HoveredWindow != NULL) || has_open_modal;
+        }
+        mouse_any_down |= io.MouseDown[i];
+        if (io.MouseDown[i])
+            if (mouse_earliest_down == -1 || io.MouseClickedTime[i] < io.MouseClickedTime[mouse_earliest_down])
+                mouse_earliest_down = i;
+    }
+    const bool mouse_avail = (mouse_earliest_down == -1) || io.MouseDownOwned[mouse_earliest_down];
+    const bool mouse_avail_unless_popup_close = (mouse_earliest_down == -1) || io.MouseDownOwnedUnlessPopupClose[mouse_earliest_down];
+
+    // If mouse was first clicked outside of ImGui bounds we also cancel out hovering.
+    // FIXME: For patterns of drag and drop across OS windows, we may need to rework/remove this test (first committed 311c0ca9 on 2015/02)
+    const bool mouse_dragging_extern_payload = g.DragDropActive && (g.DragDropSourceFlags & ImGuiDragDropFlags_SourceExtern) != 0;
+    if (!mouse_avail && !mouse_dragging_extern_payload)
+        clear_hovered_windows = true;
+
+    if (clear_hovered_windows)
+        g.HoveredWindow = g.HoveredWindowUnderMovingWindow = NULL;
+
+    // Update io.WantCaptureMouse for the user application (true = dispatch mouse info to Dear ImGui only, false = dispatch mouse to Dear ImGui + underlying app)
+    // Update io.WantCaptureMouseAllowPopupClose (experimental) to give a chance for app to react to popup closure with a drag
+    if (g.WantCaptureMouseNextFrame != -1)
+    {
+        io.WantCaptureMouse = io.WantCaptureMouseUnlessPopupClose = (g.WantCaptureMouseNextFrame != 0);
+    }
+    else
+    {
+        io.WantCaptureMouse = (mouse_avail && (g.HoveredWindow != NULL || mouse_any_down)) || has_open_popup;
+        io.WantCaptureMouseUnlessPopupClose = (mouse_avail_unless_popup_close && (g.HoveredWindow != NULL || mouse_any_down)) || has_open_modal;
+    }
+
+    // Update io.WantCaptureKeyboard for the user application (true = dispatch keyboard info to Dear ImGui only, false = dispatch keyboard info to Dear ImGui + underlying app)
+    if (g.WantCaptureKeyboardNextFrame != -1)
+        io.WantCaptureKeyboard = (g.WantCaptureKeyboardNextFrame != 0);
+    else
+        io.WantCaptureKeyboard = (g.ActiveId != 0) || (modal_window != NULL);
+    if (io.NavActive && (io.ConfigFlags & ImGuiConfigFlags_NavEnableKeyboard) && !(io.ConfigFlags & ImGuiConfigFlags_NavNoCaptureKeyboard))
+        io.WantCaptureKeyboard = true;
+
+    // Update io.WantTextInput flag, this is to allow systems without a keyboard (e.g. mobile, hand-held) to show a software keyboard if possible
+    io.WantTextInput = (g.WantTextInputNextFrame != -1) ? (g.WantTextInputNextFrame != 0) : false;
+}
+
+// [Internal] Do not use directly (can read io.KeyMods instead)
+ImGuiModFlags ImGui::GetMergedModFlags()
+{
+    ImGuiContext& g = *GImGui;
+    ImGuiModFlags key_mods = ImGuiModFlags_None;
+    if (g.IO.KeyCtrl)   { key_mods |= ImGuiModFlags_Ctrl; }
+    if (g.IO.KeyShift)  { key_mods |= ImGuiModFlags_Shift; }
+    if (g.IO.KeyAlt)    { key_mods |= ImGuiModFlags_Alt; }
+    if (g.IO.KeySuper)  { key_mods |= ImGuiModFlags_Super; }
+    return key_mods;
+}
+
+void ImGui::NewFrame()
+{
+    IM_ASSERT(GImGui != NULL && "No current context. Did you call ImGui::CreateContext() and ImGui::SetCurrentContext() ?");
+    ImGuiContext& g = *GImGui;
+
+    // Remove pending delete hooks before frame start.
+    // This deferred removal avoid issues of removal while iterating the hook vector
+    for (int n = g.Hooks.Size - 1; n >= 0; n--)
+        if (g.Hooks[n].Type == ImGuiContextHookType_PendingRemoval_)
+            g.Hooks.erase(&g.Hooks[n]);
+
+    CallContextHooks(&g, ImGuiContextHookType_NewFramePre);
+
+    // Check and assert for various common IO and Configuration mistakes
+    ErrorCheckNewFrameSanityChecks();
+
+    // Load settings on first frame, save settings when modified (after a delay)
+    UpdateSettings();
+
+    g.Time += g.IO.DeltaTime;
+    g.WithinFrameScope = true;
+    g.FrameCount += 1;
+    g.TooltipOverrideCount = 0;
+    g.WindowsActiveCount = 0;
+    g.MenusIdSubmittedThisFrame.resize(0);
+
+    // Calculate frame-rate for the user, as a purely luxurious feature
+    g.FramerateSecPerFrameAccum += g.IO.DeltaTime - g.FramerateSecPerFrame[g.FramerateSecPerFrameIdx];
+    g.FramerateSecPerFrame[g.FramerateSecPerFrameIdx] = g.IO.DeltaTime;
+    g.FramerateSecPerFrameIdx = (g.FramerateSecPerFrameIdx + 1) % IM_ARRAYSIZE(g.FramerateSecPerFrame);
+    g.FramerateSecPerFrameCount = ImMin(g.FramerateSecPerFrameCount + 1, IM_ARRAYSIZE(g.FramerateSecPerFrame));
+    g.IO.Framerate = (g.FramerateSecPerFrameAccum > 0.0f) ? (1.0f / (g.FramerateSecPerFrameAccum / (float)g.FramerateSecPerFrameCount)) : FLT_MAX;
+
+    UpdateViewportsNewFrame();
+
+    // Setup current font and draw list shared data
+    g.IO.Fonts->Locked = true;
+    SetCurrentFont(GetDefaultFont());
+    IM_ASSERT(g.Font->IsLoaded());
+    ImRect virtual_space(FLT_MAX, FLT_MAX, -FLT_MAX, -FLT_MAX);
+    for (int n = 0; n < g.Viewports.Size; n++)
+        virtual_space.Add(g.Viewports[n]->GetMainRect());
+    g.DrawListSharedData.ClipRectFullscreen = virtual_space.ToVec4();
+    g.DrawListSharedData.CurveTessellationTol = g.Style.CurveTessellationTol;
+    g.DrawListSharedData.SetCircleTessellationMaxError(g.Style.CircleTessellationMaxError);
+    g.DrawListSharedData.InitialFlags = ImDrawListFlags_None;
+    if (g.Style.AntiAliasedLines)
+        g.DrawListSharedData.InitialFlags |= ImDrawListFlags_AntiAliasedLines;
+    if (g.Style.AntiAliasedLinesUseTex && !(g.Font->ContainerAtlas->Flags & ImFontAtlasFlags_NoBakedLines))
+        g.DrawListSharedData.InitialFlags |= ImDrawListFlags_AntiAliasedLinesUseTex;
+    if (g.Style.AntiAliasedFill)
+        g.DrawListSharedData.InitialFlags |= ImDrawListFlags_AntiAliasedFill;
+    if (g.IO.BackendFlags & ImGuiBackendFlags_RendererHasVtxOffset)
+        g.DrawListSharedData.InitialFlags |= ImDrawListFlags_AllowVtxOffset;
+
+    // Mark rendering data as invalid to prevent user who may have a handle on it to use it.
+    for (int n = 0; n < g.Viewports.Size; n++)
+    {
+        ImGuiViewportP* viewport = g.Viewports[n];
+        viewport->DrawDataP.Clear();
+    }
+
+    // Drag and drop keep the source ID alive so even if the source disappear our state is consistent
+    if (g.DragDropActive && g.DragDropPayload.SourceId == g.ActiveId)
+        KeepAliveID(g.DragDropPayload.SourceId);
+
+    // Update HoveredId data
+    if (!g.HoveredIdPreviousFrame)
+        g.HoveredIdTimer = 0.0f;
+    if (!g.HoveredIdPreviousFrame || (g.HoveredId && g.ActiveId == g.HoveredId))
+        g.HoveredIdNotActiveTimer = 0.0f;
+    if (g.HoveredId)
+        g.HoveredIdTimer += g.IO.DeltaTime;
+    if (g.HoveredId && g.ActiveId != g.HoveredId)
+        g.HoveredIdNotActiveTimer += g.IO.DeltaTime;
+    g.HoveredIdPreviousFrame = g.HoveredId;
+    g.HoveredIdPreviousFrameUsingMouseWheel = g.HoveredIdUsingMouseWheel;
+    g.HoveredId = 0;
+    g.HoveredIdAllowOverlap = false;
+    g.HoveredIdUsingMouseWheel = false;
+    g.HoveredIdDisabled = false;
+
+    // Clear ActiveID if the item is not alive anymore.
+    // In 1.87, the common most call to KeepAliveID() was moved from GetID() to ItemAdd().
+    // As a result, custom widget using ButtonBehavior() _without_ ItemAdd() need to call KeepAliveID() themselves.
+    if (g.ActiveId != 0 && g.ActiveIdIsAlive != g.ActiveId && g.ActiveIdPreviousFrame == g.ActiveId)
+    {
+        IMGUI_DEBUG_LOG_ACTIVEID("NewFrame(): ClearActiveID() because it isn't marked alive anymore!\n");
+        ClearActiveID();
+    }
+
+    // Update ActiveId data (clear reference to active widget if the widget isn't alive anymore)
+    if (g.ActiveId)
+        g.ActiveIdTimer += g.IO.DeltaTime;
+    g.LastActiveIdTimer += g.IO.DeltaTime;
+    g.ActiveIdPreviousFrame = g.ActiveId;
+    g.ActiveIdPreviousFrameWindow = g.ActiveIdWindow;
+    g.ActiveIdPreviousFrameHasBeenEditedBefore = g.ActiveIdHasBeenEditedBefore;
+    g.ActiveIdIsAlive = 0;
+    g.ActiveIdHasBeenEditedThisFrame = false;
+    g.ActiveIdPreviousFrameIsAlive = false;
+    g.ActiveIdIsJustActivated = false;
+    if (g.TempInputId != 0 && g.ActiveId != g.TempInputId)
+        g.TempInputId = 0;
+    if (g.ActiveId == 0)
+    {
+        g.ActiveIdUsingNavDirMask = 0x00;
+        g.ActiveIdUsingNavInputMask = 0x00;
+        g.ActiveIdUsingKeyInputMask.ClearAllBits();
+    }
+
+    // Drag and drop
+    g.DragDropAcceptIdPrev = g.DragDropAcceptIdCurr;
+    g.DragDropAcceptIdCurr = 0;
+    g.DragDropAcceptIdCurrRectSurface = FLT_MAX;
+    g.DragDropWithinSource = false;
+    g.DragDropWithinTarget = false;
+    g.DragDropHoldJustPressedId = 0;
+
+    // Close popups on focus lost (currently wip/opt-in)
+    //if (g.IO.AppFocusLost)
+    //    ClosePopupsExceptModals();
+
+    // Process input queue (trickle as many events as possible)
+    g.InputEventsTrail.resize(0);
+    UpdateInputEvents(g.IO.ConfigInputTrickleEventQueue);
+
+    // Update keyboard input state
+    UpdateKeyboardInputs();
+
+    //IM_ASSERT(g.IO.KeyCtrl == IsKeyDown(ImGuiKey_LeftCtrl) || IsKeyDown(ImGuiKey_RightCtrl));
+    //IM_ASSERT(g.IO.KeyShift == IsKeyDown(ImGuiKey_LeftShift) || IsKeyDown(ImGuiKey_RightShift));
+    //IM_ASSERT(g.IO.KeyAlt == IsKeyDown(ImGuiKey_LeftAlt) || IsKeyDown(ImGuiKey_RightAlt));
+    //IM_ASSERT(g.IO.KeySuper == IsKeyDown(ImGuiKey_LeftSuper) || IsKeyDown(ImGuiKey_RightSuper));
+
+    // Update gamepad/keyboard navigation
+    NavUpdate();
+
+    // Update mouse input state
+    UpdateMouseInputs();
+
+    // Find hovered window
+    // (needs to be before UpdateMouseMovingWindowNewFrame so we fill g.HoveredWindowUnderMovingWindow on the mouse release frame)
+    UpdateHoveredWindowAndCaptureFlags();
+
+    // Handle user moving window with mouse (at the beginning of the frame to avoid input lag or sheering)
+    UpdateMouseMovingWindowNewFrame();
+
+    // Background darkening/whitening
+    if (GetTopMostPopupModal() != NULL || (g.NavWindowingTarget != NULL && g.NavWindowingHighlightAlpha > 0.0f))
+        g.DimBgRatio = ImMin(g.DimBgRatio + g.IO.DeltaTime * 6.0f, 1.0f);
+    else
+        g.DimBgRatio = ImMax(g.DimBgRatio - g.IO.DeltaTime * 10.0f, 0.0f);
+
+    g.MouseCursor = ImGuiMouseCursor_Arrow;
+    g.WantCaptureMouseNextFrame = g.WantCaptureKeyboardNextFrame = g.WantTextInputNextFrame = -1;
+
+    // Platform IME data: reset for the frame
+    g.PlatformImeDataPrev = g.PlatformImeData;
+    g.PlatformImeData.WantVisible = false;
+
+    // Mouse wheel scrolling, scale
+    UpdateMouseWheel();
+
+    // Mark all windows as not visible and compact unused memory.
+    IM_ASSERT(g.WindowsFocusOrder.Size <= g.Windows.Size);
+    const float memory_compact_start_time = (g.GcCompactAll || g.IO.ConfigMemoryCompactTimer < 0.0f) ? FLT_MAX : (float)g.Time - g.IO.ConfigMemoryCompactTimer;
+    for (int i = 0; i != g.Windows.Size; i++)
+    {
+        ImGuiWindow* window = g.Windows[i];
+        window->WasActive = window->Active;
+        window->BeginCount = 0;
+        window->Active = false;
+        window->WriteAccessed = false;
+
+        // Garbage collect transient buffers of recently unused windows
+        if (!window->WasActive && !window->MemoryCompacted && window->LastTimeActive < memory_compact_start_time)
+            GcCompactTransientWindowBuffers(window);
+    }
+
+    // Garbage collect transient buffers of recently unused tables
+    for (int i = 0; i < g.TablesLastTimeActive.Size; i++)
+        if (g.TablesLastTimeActive[i] >= 0.0f && g.TablesLastTimeActive[i] < memory_compact_start_time)
+            TableGcCompactTransientBuffers(g.Tables.GetByIndex(i));
+    for (int i = 0; i < g.TablesTempData.Size; i++)
+        if (g.TablesTempData[i].LastTimeActive >= 0.0f && g.TablesTempData[i].LastTimeActive < memory_compact_start_time)
+            TableGcCompactTransientBuffers(&g.TablesTempData[i]);
+    if (g.GcCompactAll)
+        GcCompactTransientMiscBuffers();
+    g.GcCompactAll = false;
+
+    // Closing the focused window restore focus to the first active root window in descending z-order
+    if (g.NavWindow && !g.NavWindow->WasActive)
+        FocusTopMostWindowUnderOne(NULL, NULL);
+
+    // No window should be open at the beginning of the frame.
+    // But in order to allow the user to call NewFrame() multiple times without calling Render(), we are doing an explicit clear.
+    g.CurrentWindowStack.resize(0);
+    g.BeginPopupStack.resize(0);
+    g.ItemFlagsStack.resize(0);
+    g.ItemFlagsStack.push_back(ImGuiItemFlags_None);
+    g.GroupStack.resize(0);
+
+    // [DEBUG] Update debug features
+    UpdateDebugToolItemPicker();
+    UpdateDebugToolStackQueries();
+
+    // Create implicit/fallback window - which we will only render it if the user has added something to it.
+    // We don't use "Debug" to avoid colliding with user trying to create a "Debug" window with custom flags.
+    // This fallback is particularly important as it avoid ImGui:: calls from crashing.
+    g.WithinFrameScopeWithImplicitWindow = true;
+    SetNextWindowSize(ImVec2(400, 400), ImGuiCond_FirstUseEver);
+    Begin("Debug##Default");
+    IM_ASSERT(g.CurrentWindow->IsFallbackWindow == true);
+
+    CallContextHooks(&g, ImGuiContextHookType_NewFramePost);
+}
+
+void ImGui::Initialize()
+{
+    ImGuiContext& g = *GImGui;
+    IM_ASSERT(!g.Initialized && !g.SettingsLoaded);
+
+    // Add .ini handle for ImGuiWindow type
+    {
+        ImGuiSettingsHandler ini_handler;
+        ini_handler.TypeName = "Window";
+        ini_handler.TypeHash = ImHashStr("Window");
+        ini_handler.ClearAllFn = WindowSettingsHandler_ClearAll;
+        ini_handler.ReadOpenFn = WindowSettingsHandler_ReadOpen;
+        ini_handler.ReadLineFn = WindowSettingsHandler_ReadLine;
+        ini_handler.ApplyAllFn = WindowSettingsHandler_ApplyAll;
+        ini_handler.WriteAllFn = WindowSettingsHandler_WriteAll;
+        AddSettingsHandler(&ini_handler);
+    }
+
+    // Add .ini handle for ImGuiTable type
+    TableSettingsAddSettingsHandler();
+
+    // Create default viewport
+    ImGuiViewportP* viewport = IM_NEW(ImGuiViewportP)();
+    g.Viewports.push_back(viewport);
+    g.TempBuffer.resize(1024 * 3 + 1, 0);
+
+#ifdef IMGUI_HAS_DOCK
+#endif
+
+    g.Initialized = true;
+}
+
+// This function is merely here to free heap allocations.
+void ImGui::Shutdown()
+{
+    // The fonts atlas can be used prior to calling NewFrame(), so we clear it even if g.Initialized is FALSE (which would happen if we never called NewFrame)
+    ImGuiContext& g = *GImGui;
+    if (g.IO.Fonts && g.FontAtlasOwnedByContext)
+    {
+        g.IO.Fonts->Locked = false;
+        IM_DELETE(g.IO.Fonts);
+    }
+    g.IO.Fonts = NULL;
+
+    // Cleanup of other data are conditional on actually having initialized Dear ImGui.
+    if (!g.Initialized)
+        return;
+
+    // Save settings (unless we haven't attempted to load them: CreateContext/DestroyContext without a call to NewFrame shouldn't save an empty file)
+    if (g.SettingsLoaded && g.IO.IniFilename != NULL)
+        SaveIniSettingsToDisk(g.IO.IniFilename);
+
+    CallContextHooks(&g, ImGuiContextHookType_Shutdown);
+
+    // Clear everything else
+    g.Windows.clear_delete();
+    g.WindowsFocusOrder.clear();
+    g.WindowsTempSortBuffer.clear();
+    g.CurrentWindow = NULL;
+    g.CurrentWindowStack.clear();
+    g.WindowsById.Clear();
+    g.NavWindow = NULL;
+    g.HoveredWindow = g.HoveredWindowUnderMovingWindow = NULL;
+    g.ActiveIdWindow = g.ActiveIdPreviousFrameWindow = NULL;
+    g.MovingWindow = NULL;
+    g.ColorStack.clear();
+    g.StyleVarStack.clear();
+    g.FontStack.clear();
+    g.OpenPopupStack.clear();
+    g.BeginPopupStack.clear();
+
+    g.Viewports.clear_delete();
+
+    g.TabBars.Clear();
+    g.CurrentTabBarStack.clear();
+    g.ShrinkWidthBuffer.clear();
+
+    g.ClipperTempData.clear_destruct();
+
+    g.Tables.Clear();
+    g.TablesTempData.clear_destruct();
+    g.DrawChannelsTempMergeBuffer.clear();
+
+    g.ClipboardHandlerData.clear();
+    g.MenusIdSubmittedThisFrame.clear();
+    g.InputTextState.ClearFreeMemory();
+
+    g.SettingsWindows.clear();
+    g.SettingsHandlers.clear();
+
+    if (g.LogFile)
+    {
+#ifndef IMGUI_DISABLE_TTY_FUNCTIONS
+        if (g.LogFile != stdout)
+#endif
+            ImFileClose(g.LogFile);
+        g.LogFile = NULL;
+    }
+    g.LogBuffer.clear();
+    g.DebugLogBuf.clear();
+
+    g.Initialized = false;
+}
+
+// FIXME: Add a more explicit sort order in the window structure.
+static int IMGUI_CDECL ChildWindowComparer(const void* lhs, const void* rhs)
+{
+    const ImGuiWindow* const a = *(const ImGuiWindow* const *)lhs;
+    const ImGuiWindow* const b = *(const ImGuiWindow* const *)rhs;
+    if (int d = (a->Flags & ImGuiWindowFlags_Popup) - (b->Flags & ImGuiWindowFlags_Popup))
+        return d;
+    if (int d = (a->Flags & ImGuiWindowFlags_Tooltip) - (b->Flags & ImGuiWindowFlags_Tooltip))
+        return d;
+    return (a->BeginOrderWithinParent - b->BeginOrderWithinParent);
+}
+
+static void AddWindowToSortBuffer(ImVector<ImGuiWindow*>* out_sorted_windows, ImGuiWindow* window)
+{
+    out_sorted_windows->push_back(window);
+    if (window->Active)
+    {
+        int count = window->DC.ChildWindows.Size;
+        ImQsort(window->DC.ChildWindows.Data, (size_t)count, sizeof(ImGuiWindow*), ChildWindowComparer);
+        for (int i = 0; i < count; i++)
+        {
+            ImGuiWindow* child = window->DC.ChildWindows[i];
+            if (child->Active)
+                AddWindowToSortBuffer(out_sorted_windows, child);
+        }
+    }
+}
+
+static void AddDrawListToDrawData(ImVector<ImDrawList*>* out_list, ImDrawList* draw_list)
+{
+    if (draw_list->CmdBuffer.Size == 0)
+        return;
+    if (draw_list->CmdBuffer.Size == 1 && draw_list->CmdBuffer[0].ElemCount == 0 && draw_list->CmdBuffer[0].UserCallback == NULL)
+        return;
+
+    // Draw list sanity check. Detect mismatch between PrimReserve() calls and incrementing _VtxCurrentIdx, _VtxWritePtr etc.
+    // May trigger for you if you are using PrimXXX functions incorrectly.
+    IM_ASSERT(draw_list->VtxBuffer.Size == 0 || draw_list->_VtxWritePtr == draw_list->VtxBuffer.Data + draw_list->VtxBuffer.Size);
+    IM_ASSERT(draw_list->IdxBuffer.Size == 0 || draw_list->_IdxWritePtr == draw_list->IdxBuffer.Data + draw_list->IdxBuffer.Size);
+    if (!(draw_list->Flags & ImDrawListFlags_AllowVtxOffset))
+        IM_ASSERT((int)draw_list->_VtxCurrentIdx == draw_list->VtxBuffer.Size);
+
+    // Check that draw_list doesn't use more vertices than indexable (default ImDrawIdx = unsigned short = 2 bytes = 64K vertices per ImDrawList = per window)
+    // If this assert triggers because you are drawing lots of stuff manually:
+    // - First, make sure you are coarse clipping yourself and not trying to draw many things outside visible bounds.
+    //   Be mindful that the ImDrawList API doesn't filter vertices. Use the Metrics/Debugger window to inspect draw list contents.
+    // - If you want large meshes with more than 64K vertices, you can either:
+    //   (A) Handle the ImDrawCmd::VtxOffset value in your renderer backend, and set 'io.BackendFlags |= ImGuiBackendFlags_RendererHasVtxOffset'.
+    //       Most example backends already support this from 1.71. Pre-1.71 backends won't.
+    //       Some graphics API such as GL ES 1/2 don't have a way to offset the starting vertex so it is not supported for them.
+    //   (B) Or handle 32-bit indices in your renderer backend, and uncomment '#define ImDrawIdx unsigned int' line in imconfig.h.
+    //       Most example backends already support this. For example, the OpenGL example code detect index size at compile-time:
+    //         glDrawElements(GL_TRIANGLES, (GLsizei)pcmd->ElemCount, sizeof(ImDrawIdx) == 2 ? GL_UNSIGNED_SHORT : GL_UNSIGNED_INT, idx_buffer_offset);
+    //       Your own engine or render API may use different parameters or function calls to specify index sizes.
+    //       2 and 4 bytes indices are generally supported by most graphics API.
+    // - If for some reason neither of those solutions works for you, a workaround is to call BeginChild()/EndChild() before reaching
+    //   the 64K limit to split your draw commands in multiple draw lists.
+    if (sizeof(ImDrawIdx) == 2)
+        IM_ASSERT(draw_list->_VtxCurrentIdx < (1 << 16) && "Too many vertices in ImDrawList using 16-bit indices. Read comment above");
+
+    out_list->push_back(draw_list);
+}
+
+static void AddWindowToDrawData(ImGuiWindow* window, int layer)
+{
+    ImGuiContext& g = *GImGui;
+    ImGuiViewportP* viewport = g.Viewports[0];
+    g.IO.MetricsRenderWindows++;
+    AddDrawListToDrawData(&viewport->DrawDataBuilder.Layers[layer], window->DrawList);
+    for (int i = 0; i < window->DC.ChildWindows.Size; i++)
+    {
+        ImGuiWindow* child = window->DC.ChildWindows[i];
+        if (IsWindowActiveAndVisible(child)) // Clipped children may have been marked not active
+            AddWindowToDrawData(child, layer);
+    }
+}
+
+static inline int GetWindowDisplayLayer(ImGuiWindow* window)
+{
+    return (window->Flags & ImGuiWindowFlags_Tooltip) ? 1 : 0;
+}
+
+// Layer is locked for the root window, however child windows may use a different viewport (e.g. extruding menu)
+static inline void AddRootWindowToDrawData(ImGuiWindow* window)
+{
+    AddWindowToDrawData(window, GetWindowDisplayLayer(window));
+}
+
+void ImDrawDataBuilder::FlattenIntoSingleLayer()
+{
+    int n = Layers[0].Size;
+    int size = n;
+    for (int i = 1; i < IM_ARRAYSIZE(Layers); i++)
+        size += Layers[i].Size;
+    Layers[0].resize(size);
+    for (int layer_n = 1; layer_n < IM_ARRAYSIZE(Layers); layer_n++)
+    {
+        ImVector<ImDrawList*>& layer = Layers[layer_n];
+        if (layer.empty())
+            continue;
+        memcpy(&Layers[0][n], &layer[0], layer.Size * sizeof(ImDrawList*));
+        n += layer.Size;
+        layer.resize(0);
+    }
+}
+
+static void SetupViewportDrawData(ImGuiViewportP* viewport, ImVector<ImDrawList*>* draw_lists)
+{
+    ImGuiIO& io = ImGui::GetIO();
+    ImDrawData* draw_data = &viewport->DrawDataP;
+    draw_data->Valid = true;
+    draw_data->CmdLists = (draw_lists->Size > 0) ? draw_lists->Data : NULL;
+    draw_data->CmdListsCount = draw_lists->Size;
+    draw_data->TotalVtxCount = draw_data->TotalIdxCount = 0;
+    draw_data->DisplayPos = viewport->Pos;
+    draw_data->DisplaySize = viewport->Size;
+    draw_data->FramebufferScale = io.DisplayFramebufferScale;
+    for (int n = 0; n < draw_lists->Size; n++)
+    {
+        ImDrawList* draw_list = draw_lists->Data[n];
+        draw_list->_PopUnusedDrawCmd();
+        draw_data->TotalVtxCount += draw_list->VtxBuffer.Size;
+        draw_data->TotalIdxCount += draw_list->IdxBuffer.Size;
+    }
+}
+
+// Push a clipping rectangle for both ImGui logic (hit-testing etc.) and low-level ImDrawList rendering.
+// - When using this function it is sane to ensure that float are perfectly rounded to integer values,
+//   so that e.g. (int)(max.x-min.x) in user's render produce correct result.
+// - If the code here changes, may need to update code of functions like NextColumn() and PushColumnClipRect():
+//   some frequently called functions which to modify both channels and clipping simultaneously tend to use the
+//   more specialized SetWindowClipRectBeforeSetChannel() to avoid extraneous updates of underlying ImDrawCmds.
+void ImGui::PushClipRect(const ImVec2& clip_rect_min, const ImVec2& clip_rect_max, bool intersect_with_current_clip_rect)
+{
+    ImGuiWindow* window = GetCurrentWindow();
+    window->DrawList->PushClipRect(clip_rect_min, clip_rect_max, intersect_with_current_clip_rect);
+    window->ClipRect = window->DrawList->_ClipRectStack.back();
+}
+
+void ImGui::PopClipRect()
+{
+    ImGuiWindow* window = GetCurrentWindow();
+    window->DrawList->PopClipRect();
+    window->ClipRect = window->DrawList->_ClipRectStack.back();
+}
+
+static void ImGui::RenderDimmedBackgroundBehindWindow(ImGuiWindow* window, ImU32 col)
+{
+    if ((col & IM_COL32_A_MASK) == 0)
+        return;
+
+    ImGuiViewportP* viewport = (ImGuiViewportP*)GetMainViewport();
+    ImRect viewport_rect = viewport->GetMainRect();
+
+    // Draw behind window by moving the draw command at the FRONT of the draw list
+    {
+        // We've already called AddWindowToDrawData() which called DrawList->ChannelsMerge() on DockNodeHost windows,
+        // and draw list have been trimmed already, hence the explicit recreation of a draw command if missing.
+        // FIXME: This is creating complication, might be simpler if we could inject a drawlist in drawdata at a given position and not attempt to manipulate ImDrawCmd order.
+        ImDrawList* draw_list = window->RootWindow->DrawList;
+        if (draw_list->CmdBuffer.Size == 0)
+            draw_list->AddDrawCmd();
+        draw_list->PushClipRect(viewport_rect.Min - ImVec2(1, 1), viewport_rect.Max + ImVec2(1, 1), false); // Ensure ImDrawCmd are not merged
+        draw_list->AddRectFilled(viewport_rect.Min, viewport_rect.Max, col);
+        ImDrawCmd cmd = draw_list->CmdBuffer.back();
+        IM_ASSERT(cmd.ElemCount == 6);
+        draw_list->CmdBuffer.pop_back();
+        draw_list->CmdBuffer.push_front(cmd);
+        draw_list->PopClipRect();
+        draw_list->AddDrawCmd(); // We need to create a command as CmdBuffer.back().IdxOffset won't be correct if we append to same command.
+    }
+}
+
+ImGuiWindow* ImGui::FindBottomMostVisibleWindowWithinBeginStack(ImGuiWindow* parent_window)
+{
+    ImGuiContext& g = *GImGui;
+    ImGuiWindow* bottom_most_visible_window = parent_window;
+    for (int i = FindWindowDisplayIndex(parent_window); i >= 0; i--)
+    {
+        ImGuiWindow* window = g.Windows[i];
+        if (window->Flags & ImGuiWindowFlags_ChildWindow)
+            continue;
+        if (!IsWindowWithinBeginStackOf(window, parent_window))
+            break;
+        if (IsWindowActiveAndVisible(window) && GetWindowDisplayLayer(window) <= GetWindowDisplayLayer(parent_window))
+            bottom_most_visible_window = window;
+    }
+    return bottom_most_visible_window;
+}
+
+static void ImGui::RenderDimmedBackgrounds()
+{
+    ImGuiContext& g = *GImGui;
+    ImGuiWindow* modal_window = GetTopMostAndVisiblePopupModal();
+    if (g.DimBgRatio <= 0.0f && g.NavWindowingHighlightAlpha <= 0.0f)
+        return;
+    const bool dim_bg_for_modal = (modal_window != NULL);
+    const bool dim_bg_for_window_list = (g.NavWindowingTargetAnim != NULL && g.NavWindowingTargetAnim->Active);
+    if (!dim_bg_for_modal && !dim_bg_for_window_list)
+        return;
+
+    if (dim_bg_for_modal)
+    {
+        // Draw dimming behind modal or a begin stack child, whichever comes first in draw order.
+        ImGuiWindow* dim_behind_window = FindBottomMostVisibleWindowWithinBeginStack(modal_window);
+        RenderDimmedBackgroundBehindWindow(dim_behind_window, GetColorU32(ImGuiCol_ModalWindowDimBg, g.DimBgRatio));
+    }
+    else if (dim_bg_for_window_list)
+    {
+        // Draw dimming behind CTRL+Tab target window
+        RenderDimmedBackgroundBehindWindow(g.NavWindowingTargetAnim, GetColorU32(ImGuiCol_NavWindowingDimBg, g.DimBgRatio));
+
+        // Draw border around CTRL+Tab target window
+        ImGuiWindow* window = g.NavWindowingTargetAnim;
+        ImGuiViewport* viewport = GetMainViewport();
+        float distance = g.FontSize;
+        ImRect bb = window->Rect();
+        bb.Expand(distance);
+        if (bb.GetWidth() >= viewport->Size.x && bb.GetHeight() >= viewport->Size.y)
+            bb.Expand(-distance - 1.0f); // If a window fits the entire viewport, adjust its highlight inward
+        if (window->DrawList->CmdBuffer.Size == 0)
+            window->DrawList->AddDrawCmd();
+        window->DrawList->PushClipRect(viewport->Pos, viewport->Pos + viewport->Size);
+        window->DrawList->AddRect(bb.Min, bb.Max, GetColorU32(ImGuiCol_NavWindowingHighlight, g.NavWindowingHighlightAlpha), window->WindowRounding, 0, 3.0f);
+        window->DrawList->PopClipRect();
+    }
+}
+
+// This is normally called by Render(). You may want to call it directly if you want to avoid calling Render() but the gain will be very minimal.
+void ImGui::EndFrame()
+{
+    ImGuiContext& g = *GImGui;
+    IM_ASSERT(g.Initialized);
+
+    // Don't process EndFrame() multiple times.
+    if (g.FrameCountEnded == g.FrameCount)
+        return;
+    IM_ASSERT(g.WithinFrameScope && "Forgot to call ImGui::NewFrame()?");
+
+    CallContextHooks(&g, ImGuiContextHookType_EndFramePre);
+
+    ErrorCheckEndFrameSanityChecks();
+
+    // Notify Platform/OS when our Input Method Editor cursor has moved (e.g. CJK inputs using Microsoft IME)
+    if (g.IO.SetPlatformImeDataFn && memcmp(&g.PlatformImeData, &g.PlatformImeDataPrev, sizeof(ImGuiPlatformImeData)) != 0)
+        g.IO.SetPlatformImeDataFn(GetMainViewport(), &g.PlatformImeData);
+
+    // Hide implicit/fallback "Debug" window if it hasn't been used
+    g.WithinFrameScopeWithImplicitWindow = false;
+    if (g.CurrentWindow && !g.CurrentWindow->WriteAccessed)
+        g.CurrentWindow->Active = false;
+    End();
+
+    // Update navigation: CTRL+Tab, wrap-around requests
+    NavEndFrame();
+
+    // Drag and Drop: Elapse payload (if delivered, or if source stops being submitted)
+    if (g.DragDropActive)
+    {
+        bool is_delivered = g.DragDropPayload.Delivery;
+        bool is_elapsed = (g.DragDropPayload.DataFrameCount + 1 < g.FrameCount) && ((g.DragDropSourceFlags & ImGuiDragDropFlags_SourceAutoExpirePayload) || !IsMouseDown(g.DragDropMouseButton));
+        if (is_delivered || is_elapsed)
+            ClearDragDrop();
+    }
+
+    // Drag and Drop: Fallback for source tooltip. This is not ideal but better than nothing.
+    if (g.DragDropActive && g.DragDropSourceFrameCount < g.FrameCount && !(g.DragDropSourceFlags & ImGuiDragDropFlags_SourceNoPreviewTooltip))
+    {
+        g.DragDropWithinSource = true;
+        SetTooltip("...");
+        g.DragDropWithinSource = false;
+    }
+
+    // End frame
+    g.WithinFrameScope = false;
+    g.FrameCountEnded = g.FrameCount;
+
+    // Initiate moving window + handle left-click and right-click focus
+    UpdateMouseMovingWindowEndFrame();
+
+    // Sort the window list so that all child windows are after their parent
+    // We cannot do that on FocusWindow() because children may not exist yet
+    g.WindowsTempSortBuffer.resize(0);
+    g.WindowsTempSortBuffer.reserve(g.Windows.Size);
+    for (int i = 0; i != g.Windows.Size; i++)
+    {
+        ImGuiWindow* window = g.Windows[i];
+        if (window->Active && (window->Flags & ImGuiWindowFlags_ChildWindow))       // if a child is active its parent will add it
+            continue;
+        AddWindowToSortBuffer(&g.WindowsTempSortBuffer, window);
+    }
+
+    // This usually assert if there is a mismatch between the ImGuiWindowFlags_ChildWindow / ParentWindow values and DC.ChildWindows[] in parents, aka we've done something wrong.
+    IM_ASSERT(g.Windows.Size == g.WindowsTempSortBuffer.Size);
+    g.Windows.swap(g.WindowsTempSortBuffer);
+    g.IO.MetricsActiveWindows = g.WindowsActiveCount;
+
+    // Unlock font atlas
+    g.IO.Fonts->Locked = false;
+
+    // Clear Input data for next frame
+    g.IO.MouseWheel = g.IO.MouseWheelH = 0.0f;
+    g.IO.InputQueueCharacters.resize(0);
+    memset(g.IO.NavInputs, 0, sizeof(g.IO.NavInputs));
+
+    CallContextHooks(&g, ImGuiContextHookType_EndFramePost);
+}
+
+// Prepare the data for rendering so you can call GetDrawData()
+// (As with anything within the ImGui:: namspace this doesn't touch your GPU or graphics API at all:
+// it is the role of the ImGui_ImplXXXX_RenderDrawData() function provided by the renderer backend)
+void ImGui::Render()
+{
+    ImGuiContext& g = *GImGui;
+    IM_ASSERT(g.Initialized);
+
+    if (g.FrameCountEnded != g.FrameCount)
+        EndFrame();
+    const bool first_render_of_frame = (g.FrameCountRendered != g.FrameCount);
+    g.FrameCountRendered = g.FrameCount;
+    g.IO.MetricsRenderWindows = 0;
+
+    CallContextHooks(&g, ImGuiContextHookType_RenderPre);
+
+    // Add background ImDrawList (for each active viewport)
+    for (int n = 0; n != g.Viewports.Size; n++)
+    {
+        ImGuiViewportP* viewport = g.Viewports[n];
+        viewport->DrawDataBuilder.Clear();
+        if (viewport->DrawLists[0] != NULL)
+            AddDrawListToDrawData(&viewport->DrawDataBuilder.Layers[0], GetBackgroundDrawList(viewport));
+    }
+
+    // Draw modal/window whitening backgrounds
+    if (first_render_of_frame)
+        RenderDimmedBackgrounds();
+
+    // Add ImDrawList to render
+    ImGuiWindow* windows_to_render_top_most[2];
+    windows_to_render_top_most[0] = (g.NavWindowingTarget && !(g.NavWindowingTarget->Flags & ImGuiWindowFlags_NoBringToFrontOnFocus)) ? g.NavWindowingTarget->RootWindow : NULL;
+    windows_to_render_top_most[1] = (g.NavWindowingTarget ? g.NavWindowingListWindow : NULL);
+    for (int n = 0; n != g.Windows.Size; n++)
+    {
+        ImGuiWindow* window = g.Windows[n];
+        IM_MSVC_WARNING_SUPPRESS(6011); // Static Analysis false positive "warning C6011: Dereferencing NULL pointer 'window'"
+        if (IsWindowActiveAndVisible(window) && (window->Flags & ImGuiWindowFlags_ChildWindow) == 0 && window != windows_to_render_top_most[0] && window != windows_to_render_top_most[1])
+            AddRootWindowToDrawData(window);
+    }
+    for (int n = 0; n < IM_ARRAYSIZE(windows_to_render_top_most); n++)
+        if (windows_to_render_top_most[n] && IsWindowActiveAndVisible(windows_to_render_top_most[n])) // NavWindowingTarget is always temporarily displayed as the top-most window
+            AddRootWindowToDrawData(windows_to_render_top_most[n]);
+
+    // Draw software mouse cursor if requested by io.MouseDrawCursor flag
+    if (g.IO.MouseDrawCursor && first_render_of_frame && g.MouseCursor != ImGuiMouseCursor_None)
+        RenderMouseCursor(g.IO.MousePos, g.Style.MouseCursorScale, g.MouseCursor, IM_COL32_WHITE, IM_COL32_BLACK, IM_COL32(0, 0, 0, 48));
+
+    // Setup ImDrawData structures for end-user
+    g.IO.MetricsRenderVertices = g.IO.MetricsRenderIndices = 0;
+    for (int n = 0; n < g.Viewports.Size; n++)
+    {
+        ImGuiViewportP* viewport = g.Viewports[n];
+        viewport->DrawDataBuilder.FlattenIntoSingleLayer();
+
+        // Add foreground ImDrawList (for each active viewport)
+        if (viewport->DrawLists[1] != NULL)
+            AddDrawListToDrawData(&viewport->DrawDataBuilder.Layers[0], GetForegroundDrawList(viewport));
+
+        SetupViewportDrawData(viewport, &viewport->DrawDataBuilder.Layers[0]);
+        ImDrawData* draw_data = &viewport->DrawDataP;
+        g.IO.MetricsRenderVertices += draw_data->TotalVtxCount;
+        g.IO.MetricsRenderIndices += draw_data->TotalIdxCount;
+    }
+
+    CallContextHooks(&g, ImGuiContextHookType_RenderPost);
+}
+
+// Calculate text size. Text can be multi-line. Optionally ignore text after a ## marker.
+// CalcTextSize("") should return ImVec2(0.0f, g.FontSize)
+ImVec2 ImGui::CalcTextSize(const char* text, const char* text_end, bool hide_text_after_double_hash, float wrap_width)
+{
+    ImGuiContext& g = *GImGui;
+
+    const char* text_display_end;
+    if (hide_text_after_double_hash)
+        text_display_end = FindRenderedTextEnd(text, text_end);      // Hide anything after a '##' string
+    else
+        text_display_end = text_end;
+
+    ImFont* font = g.Font;
+    const float font_size = g.FontSize;
+    if (text == text_display_end)
+        return ImVec2(0.0f, font_size);
+    ImVec2 text_size = font->CalcTextSizeA(font_size, FLT_MAX, wrap_width, text, text_display_end, NULL);
+
+    // Round
+    // FIXME: This has been here since Dec 2015 (7b0bf230) but down the line we want this out.
+    // FIXME: Investigate using ceilf or e.g.
+    // - https://git.musl-libc.org/cgit/musl/tree/src/math/ceilf.c
+    // - https://embarkstudios.github.io/rust-gpu/api/src/libm/math/ceilf.rs.html
+    text_size.x = IM_FLOOR(text_size.x + 0.99999f);
+
+    return text_size;
+}
+
+// Find window given position, search front-to-back
+// FIXME: Note that we have an inconsequential lag here: OuterRectClipped is updated in Begin(), so windows moved programmatically
+// with SetWindowPos() and not SetNextWindowPos() will have that rectangle lagging by a frame at the time FindHoveredWindow() is
+// called, aka before the next Begin(). Moving window isn't affected.
+static void FindHoveredWindow()
+{
+    ImGuiContext& g = *GImGui;
+
+    ImGuiWindow* hovered_window = NULL;
+    ImGuiWindow* hovered_window_ignoring_moving_window = NULL;
+    if (g.MovingWindow && !(g.MovingWindow->Flags & ImGuiWindowFlags_NoMouseInputs))
+        hovered_window = g.MovingWindow;
+
+    ImVec2 padding_regular = g.Style.TouchExtraPadding;
+    ImVec2 padding_for_resize = g.IO.ConfigWindowsResizeFromEdges ? g.WindowsHoverPadding : padding_regular;
+    for (int i = g.Windows.Size - 1; i >= 0; i--)
+    {
+        ImGuiWindow* window = g.Windows[i];
+        IM_MSVC_WARNING_SUPPRESS(28182); // [Static Analyzer] Dereferencing NULL pointer.
+        if (!window->Active || window->Hidden)
+            continue;
+        if (window->Flags & ImGuiWindowFlags_NoMouseInputs)
+            continue;
+
+        // Using the clipped AABB, a child window will typically be clipped by its parent (not always)
+        ImRect bb(window->OuterRectClipped);
+        if (window->Flags & (ImGuiWindowFlags_ChildWindow | ImGuiWindowFlags_NoResize | ImGuiWindowFlags_AlwaysAutoResize))
+            bb.Expand(padding_regular);
+        else
+            bb.Expand(padding_for_resize);
+        if (!bb.Contains(g.IO.MousePos))
+            continue;
+
+        // Support for one rectangular hole in any given window
+        // FIXME: Consider generalizing hit-testing override (with more generic data, callback, etc.) (#1512)
+        if (window->HitTestHoleSize.x != 0)
+        {
+            ImVec2 hole_pos(window->Pos.x + (float)window->HitTestHoleOffset.x, window->Pos.y + (float)window->HitTestHoleOffset.y);
+            ImVec2 hole_size((float)window->HitTestHoleSize.x, (float)window->HitTestHoleSize.y);
+            if (ImRect(hole_pos, hole_pos + hole_size).Contains(g.IO.MousePos))
+                continue;
+        }
+
+        if (hovered_window == NULL)
+            hovered_window = window;
+        IM_MSVC_WARNING_SUPPRESS(28182); // [Static Analyzer] Dereferencing NULL pointer.
+        if (hovered_window_ignoring_moving_window == NULL && (!g.MovingWindow || window->RootWindow != g.MovingWindow->RootWindow))
+            hovered_window_ignoring_moving_window = window;
+        if (hovered_window && hovered_window_ignoring_moving_window)
+            break;
+    }
+
+    g.HoveredWindow = hovered_window;
+    g.HoveredWindowUnderMovingWindow = hovered_window_ignoring_moving_window;
+}
+
+bool ImGui::IsItemActive()
+{
+    ImGuiContext& g = *GImGui;
+    if (g.ActiveId)
+        return g.ActiveId == g.LastItemData.ID;
+    return false;
+}
+
+bool ImGui::IsItemActivated()
+{
+    ImGuiContext& g = *GImGui;
+    if (g.ActiveId)
+        if (g.ActiveId == g.LastItemData.ID && g.ActiveIdPreviousFrame != g.LastItemData.ID)
+            return true;
+    return false;
+}
+
+bool ImGui::IsItemDeactivated()
+{
+    ImGuiContext& g = *GImGui;
+    if (g.LastItemData.StatusFlags & ImGuiItemStatusFlags_HasDeactivated)
+        return (g.LastItemData.StatusFlags & ImGuiItemStatusFlags_Deactivated) != 0;
+    return (g.ActiveIdPreviousFrame == g.LastItemData.ID && g.ActiveIdPreviousFrame != 0 && g.ActiveId != g.LastItemData.ID);
+}
+
+bool ImGui::IsItemDeactivatedAfterEdit()
+{
+    ImGuiContext& g = *GImGui;
+    return IsItemDeactivated() && (g.ActiveIdPreviousFrameHasBeenEditedBefore || (g.ActiveId == 0 && g.ActiveIdHasBeenEditedBefore));
+}
+
+// == GetItemID() == GetFocusID()
+bool ImGui::IsItemFocused()
+{
+    ImGuiContext& g = *GImGui;
+    if (g.NavId != g.LastItemData.ID || g.NavId == 0)
+        return false;
+    return true;
+}
+
+// Important: this can be useful but it is NOT equivalent to the behavior of e.g.Button()!
+// Most widgets have specific reactions based on mouse-up/down state, mouse position etc.
+bool ImGui::IsItemClicked(ImGuiMouseButton mouse_button)
+{
+    return IsMouseClicked(mouse_button) && IsItemHovered(ImGuiHoveredFlags_None);
+}
+
+bool ImGui::IsItemToggledOpen()
+{
+    ImGuiContext& g = *GImGui;
+    return (g.LastItemData.StatusFlags & ImGuiItemStatusFlags_ToggledOpen) ? true : false;
+}
+
+bool ImGui::IsItemToggledSelection()
+{
+    ImGuiContext& g = *GImGui;
+    return (g.LastItemData.StatusFlags & ImGuiItemStatusFlags_ToggledSelection) ? true : false;
+}
+
+bool ImGui::IsAnyItemHovered()
+{
+    ImGuiContext& g = *GImGui;
+    return g.HoveredId != 0 || g.HoveredIdPreviousFrame != 0;
+}
+
+bool ImGui::IsAnyItemActive()
+{
+    ImGuiContext& g = *GImGui;
+    return g.ActiveId != 0;
+}
+
+bool ImGui::IsAnyItemFocused()
+{
+    ImGuiContext& g = *GImGui;
+    return g.NavId != 0 && !g.NavDisableHighlight;
+}
+
+bool ImGui::IsItemVisible()
+{
+    ImGuiContext& g = *GImGui;
+    return g.CurrentWindow->ClipRect.Overlaps(g.LastItemData.Rect);
+}
+
+bool ImGui::IsItemEdited()
+{
+    ImGuiContext& g = *GImGui;
+    return (g.LastItemData.StatusFlags & ImGuiItemStatusFlags_Edited) != 0;
+}
+
+// Allow last item to be overlapped by a subsequent item. Both may be activated during the same frame before the later one takes priority.
+// FIXME: Although this is exposed, its interaction and ideal idiom with using ImGuiButtonFlags_AllowItemOverlap flag are extremely confusing, need rework.
+void ImGui::SetItemAllowOverlap()
+{
+    ImGuiContext& g = *GImGui;
+    ImGuiID id = g.LastItemData.ID;
+    if (g.HoveredId == id)
+        g.HoveredIdAllowOverlap = true;
+    if (g.ActiveId == id)
+        g.ActiveIdAllowOverlap = true;
+}
+
+void ImGui::SetItemUsingMouseWheel()
+{
+    ImGuiContext& g = *GImGui;
+    ImGuiID id = g.LastItemData.ID;
+    if (g.HoveredId == id)
+        g.HoveredIdUsingMouseWheel = true;
+    if (g.ActiveId == id)
+        g.ActiveIdUsingMouseWheel = true;
+}
+
+void ImGui::SetActiveIdUsingNavAndKeys()
+{
+    ImGuiContext& g = *GImGui;
+    IM_ASSERT(g.ActiveId != 0);
+    g.ActiveIdUsingNavDirMask = ~(ImU32)0;
+    g.ActiveIdUsingNavInputMask = ~(ImU32)0;
+    g.ActiveIdUsingKeyInputMask.SetAllBits();
+    NavMoveRequestCancel();
+}
+
+ImVec2 ImGui::GetItemRectMin()
+{
+    ImGuiContext& g = *GImGui;
+    return g.LastItemData.Rect.Min;
+}
+
+ImVec2 ImGui::GetItemRectMax()
+{
+    ImGuiContext& g = *GImGui;
+    return g.LastItemData.Rect.Max;
+}
+
+ImVec2 ImGui::GetItemRectSize()
+{
+    ImGuiContext& g = *GImGui;
+    return g.LastItemData.Rect.GetSize();
+}
+
+bool ImGui::BeginChildEx(const char* name, ImGuiID id, const ImVec2& size_arg, bool border, ImGuiWindowFlags flags)
+{
+    ImGuiContext& g = *GImGui;
+    ImGuiWindow* parent_window = g.CurrentWindow;
+
+    flags |= ImGuiWindowFlags_NoTitleBar | ImGuiWindowFlags_NoResize | ImGuiWindowFlags_NoSavedSettings | ImGuiWindowFlags_ChildWindow;
+    flags |= (parent_window->Flags & ImGuiWindowFlags_NoMove);  // Inherit the NoMove flag
+
+    // Size
+    const ImVec2 content_avail = GetContentRegionAvail();
+    ImVec2 size = ImFloor(size_arg);
+    const int auto_fit_axises = ((size.x == 0.0f) ? (1 << ImGuiAxis_X) : 0x00) | ((size.y == 0.0f) ? (1 << ImGuiAxis_Y) : 0x00);
+    if (size.x <= 0.0f)
+        size.x = ImMax(content_avail.x + size.x, 4.0f); // Arbitrary minimum child size (0.0f causing too much issues)
+    if (size.y <= 0.0f)
+        size.y = ImMax(content_avail.y + size.y, 4.0f);
+    SetNextWindowSize(size);
+
+    // Build up name. If you need to append to a same child from multiple location in the ID stack, use BeginChild(ImGuiID id) with a stable value.
+    const char* temp_window_name;
+    if (name)
+        ImFormatStringToTempBuffer(&temp_window_name, NULL, "%s/%s_%08X", parent_window->Name, name, id);
+    else
+        ImFormatStringToTempBuffer(&temp_window_name, NULL, "%s/%08X", parent_window->Name, id);
+
+    const float backup_border_size = g.Style.ChildBorderSize;
+    if (!border)
+        g.Style.ChildBorderSize = 0.0f;
+    bool ret = Begin(temp_window_name, NULL, flags);
+    g.Style.ChildBorderSize = backup_border_size;
+
+    ImGuiWindow* child_window = g.CurrentWindow;
+    child_window->ChildId = id;
+    child_window->AutoFitChildAxises = (ImS8)auto_fit_axises;
+
+    // Set the cursor to handle case where the user called SetNextWindowPos()+BeginChild() manually.
+    // While this is not really documented/defined, it seems that the expected thing to do.
+    if (child_window->BeginCount == 1)
+        parent_window->DC.CursorPos = child_window->Pos;
+
+    // Process navigation-in immediately so NavInit can run on first frame
+    if (g.NavActivateId == id && !(flags & ImGuiWindowFlags_NavFlattened) && (child_window->DC.NavLayersActiveMask != 0 || child_window->DC.NavHasScroll))
+    {
+        FocusWindow(child_window);
+        NavInitWindow(child_window, false);
+        SetActiveID(id + 1, child_window); // Steal ActiveId with another arbitrary id so that key-press won't activate child item
+        g.ActiveIdSource = ImGuiInputSource_Nav;
+    }
+    return ret;
+}
+
+bool ImGui::BeginChild(const char* str_id, const ImVec2& size_arg, bool border, ImGuiWindowFlags extra_flags)
+{
+    ImGuiWindow* window = GetCurrentWindow();
+    return BeginChildEx(str_id, window->GetID(str_id), size_arg, border, extra_flags);
+}
+
+bool ImGui::BeginChild(ImGuiID id, const ImVec2& size_arg, bool border, ImGuiWindowFlags extra_flags)
+{
+    IM_ASSERT(id != 0);
+    return BeginChildEx(NULL, id, size_arg, border, extra_flags);
+}
+
+void ImGui::EndChild()
+{
+    ImGuiContext& g = *GImGui;
+    ImGuiWindow* window = g.CurrentWindow;
+
+    IM_ASSERT(g.WithinEndChild == false);
+    IM_ASSERT(window->Flags & ImGuiWindowFlags_ChildWindow);   // Mismatched BeginChild()/EndChild() calls
+
+    g.WithinEndChild = true;
+    if (window->BeginCount > 1)
+    {
+        End();
+    }
+    else
+    {
+        ImVec2 sz = window->Size;
+        if (window->AutoFitChildAxises & (1 << ImGuiAxis_X)) // Arbitrary minimum zero-ish child size of 4.0f causes less trouble than a 0.0f
+            sz.x = ImMax(4.0f, sz.x);
+        if (window->AutoFitChildAxises & (1 << ImGuiAxis_Y))
+            sz.y = ImMax(4.0f, sz.y);
+        End();
+
+        ImGuiWindow* parent_window = g.CurrentWindow;
+        ImRect bb(parent_window->DC.CursorPos, parent_window->DC.CursorPos + sz);
+        ItemSize(sz);
+        if ((window->DC.NavLayersActiveMask != 0 || window->DC.NavHasScroll) && !(window->Flags & ImGuiWindowFlags_NavFlattened))
+        {
+            ItemAdd(bb, window->ChildId);
+            RenderNavHighlight(bb, window->ChildId);
+
+            // When browsing a window that has no activable items (scroll only) we keep a highlight on the child (pass g.NavId to trick into always displaying)
+            if (window->DC.NavLayersActiveMask == 0 && window == g.NavWindow)
+                RenderNavHighlight(ImRect(bb.Min - ImVec2(2, 2), bb.Max + ImVec2(2, 2)), g.NavId, ImGuiNavHighlightFlags_TypeThin);
+        }
+        else
+        {
+            // Not navigable into
+            ItemAdd(bb, 0);
+        }
+        if (g.HoveredWindow == window)
+            g.LastItemData.StatusFlags |= ImGuiItemStatusFlags_HoveredWindow;
+    }
+    g.WithinEndChild = false;
+    g.LogLinePosY = -FLT_MAX; // To enforce a carriage return
+}
+
+// Helper to create a child window / scrolling region that looks like a normal widget frame.
+bool ImGui::BeginChildFrame(ImGuiID id, const ImVec2& size, ImGuiWindowFlags extra_flags)
+{
+    ImGuiContext& g = *GImGui;
+    const ImGuiStyle& style = g.Style;
+    PushStyleColor(ImGuiCol_ChildBg, style.Colors[ImGuiCol_FrameBg]);
+    PushStyleVar(ImGuiStyleVar_ChildRounding, style.FrameRounding);
+    PushStyleVar(ImGuiStyleVar_ChildBorderSize, style.FrameBorderSize);
+    PushStyleVar(ImGuiStyleVar_WindowPadding, style.FramePadding);
+    bool ret = BeginChild(id, size, true, ImGuiWindowFlags_NoMove | ImGuiWindowFlags_AlwaysUseWindowPadding | extra_flags);
+    PopStyleVar(3);
+    PopStyleColor();
+    return ret;
+}
+
+void ImGui::EndChildFrame()
+{
+    EndChild();
+}
+
+static void SetWindowConditionAllowFlags(ImGuiWindow* window, ImGuiCond flags, bool enabled)
+{
+    window->SetWindowPosAllowFlags       = enabled ? (window->SetWindowPosAllowFlags       | flags) : (window->SetWindowPosAllowFlags       & ~flags);
+    window->SetWindowSizeAllowFlags      = enabled ? (window->SetWindowSizeAllowFlags      | flags) : (window->SetWindowSizeAllowFlags      & ~flags);
+    window->SetWindowCollapsedAllowFlags = enabled ? (window->SetWindowCollapsedAllowFlags | flags) : (window->SetWindowCollapsedAllowFlags & ~flags);
+}
+
+ImGuiWindow* ImGui::FindWindowByID(ImGuiID id)
+{
+    ImGuiContext& g = *GImGui;
+    return (ImGuiWindow*)g.WindowsById.GetVoidPtr(id);
+}
+
+ImGuiWindow* ImGui::FindWindowByName(const char* name)
+{
+    ImGuiID id = ImHashStr(name);
+    return FindWindowByID(id);
+}
+
+static void ApplyWindowSettings(ImGuiWindow* window, ImGuiWindowSettings* settings)
+{
+    window->Pos = ImFloor(ImVec2(settings->Pos.x, settings->Pos.y));
+    if (settings->Size.x > 0 && settings->Size.y > 0)
+        window->Size = window->SizeFull = ImFloor(ImVec2(settings->Size.x, settings->Size.y));
+    window->Collapsed = settings->Collapsed;
+}
+
+static void UpdateWindowInFocusOrderList(ImGuiWindow* window, bool just_created, ImGuiWindowFlags new_flags)
+{
+    ImGuiContext& g = *GImGui;
+
+    const bool new_is_explicit_child = (new_flags & ImGuiWindowFlags_ChildWindow) != 0;
+    const bool child_flag_changed = new_is_explicit_child != window->IsExplicitChild;
+    if ((just_created || child_flag_changed) && !new_is_explicit_child)
+    {
+        IM_ASSERT(!g.WindowsFocusOrder.contains(window));
+        g.WindowsFocusOrder.push_back(window);
+        window->FocusOrder = (short)(g.WindowsFocusOrder.Size - 1);
+    }
+    else if (!just_created && child_flag_changed && new_is_explicit_child)
+    {
+        IM_ASSERT(g.WindowsFocusOrder[window->FocusOrder] == window);
+        for (int n = window->FocusOrder + 1; n < g.WindowsFocusOrder.Size; n++)
+            g.WindowsFocusOrder[n]->FocusOrder--;
+        g.WindowsFocusOrder.erase(g.WindowsFocusOrder.Data + window->FocusOrder);
+        window->FocusOrder = -1;
+    }
+    window->IsExplicitChild = new_is_explicit_child;
+}
+
+static ImGuiWindow* CreateNewWindow(const char* name, ImGuiWindowFlags flags)
+{
+    ImGuiContext& g = *GImGui;
+    //IMGUI_DEBUG_LOG("CreateNewWindow '%s', flags = 0x%08X\n", name, flags);
+
+    // Create window the first time
+    ImGuiWindow* window = IM_NEW(ImGuiWindow)(&g, name);
+    window->Flags = flags;
+    g.WindowsById.SetVoidPtr(window->ID, window);
+
+    // Default/arbitrary window position. Use SetNextWindowPos() with the appropriate condition flag to change the initial position of a window.
+    const ImGuiViewport* main_viewport = ImGui::GetMainViewport();
+    window->Pos = main_viewport->Pos + ImVec2(60, 60);
+
+    // User can disable loading and saving of settings. Tooltip and child windows also don't store settings.
+    if (!(flags & ImGuiWindowFlags_NoSavedSettings))
+        if (ImGuiWindowSettings* settings = ImGui::FindWindowSettings(window->ID))
+        {
+            // Retrieve settings from .ini file
+            window->SettingsOffset = g.SettingsWindows.offset_from_ptr(settings);
+            SetWindowConditionAllowFlags(window, ImGuiCond_FirstUseEver, false);
+            ApplyWindowSettings(window, settings);
+        }
+    window->DC.CursorStartPos = window->DC.CursorMaxPos = window->DC.IdealMaxPos = window->Pos; // So first call to CalcWindowContentSizes() doesn't return crazy values
+
+    if ((flags & ImGuiWindowFlags_AlwaysAutoResize) != 0)
+    {
+        window->AutoFitFramesX = window->AutoFitFramesY = 2;
+        window->AutoFitOnlyGrows = false;
+    }
+    else
+    {
+        if (window->Size.x <= 0.0f)
+            window->AutoFitFramesX = 2;
+        if (window->Size.y <= 0.0f)
+            window->AutoFitFramesY = 2;
+        window->AutoFitOnlyGrows = (window->AutoFitFramesX > 0) || (window->AutoFitFramesY > 0);
+    }
+
+    if (flags & ImGuiWindowFlags_NoBringToFrontOnFocus)
+        g.Windows.push_front(window); // Quite slow but rare and only once
+    else
+        g.Windows.push_back(window);
+    UpdateWindowInFocusOrderList(window, true, window->Flags);
+
+    return window;
+}
+
+static ImVec2 CalcWindowSizeAfterConstraint(ImGuiWindow* window, const ImVec2& size_desired)
+{
+    ImGuiContext& g = *GImGui;
+    ImVec2 new_size = size_desired;
+    if (g.NextWindowData.Flags & ImGuiNextWindowDataFlags_HasSizeConstraint)
+    {
+        // Using -1,-1 on either X/Y axis to preserve the current size.
+        ImRect cr = g.NextWindowData.SizeConstraintRect;
+        new_size.x = (cr.Min.x >= 0 && cr.Max.x >= 0) ? ImClamp(new_size.x, cr.Min.x, cr.Max.x) : window->SizeFull.x;
+        new_size.y = (cr.Min.y >= 0 && cr.Max.y >= 0) ? ImClamp(new_size.y, cr.Min.y, cr.Max.y) : window->SizeFull.y;
+        if (g.NextWindowData.SizeCallback)
+        {
+            ImGuiSizeCallbackData data;
+            data.UserData = g.NextWindowData.SizeCallbackUserData;
+            data.Pos = window->Pos;
+            data.CurrentSize = window->SizeFull;
+            data.DesiredSize = new_size;
+            g.NextWindowData.SizeCallback(&data);
+            new_size = data.DesiredSize;
+        }
+        new_size.x = IM_FLOOR(new_size.x);
+        new_size.y = IM_FLOOR(new_size.y);
+    }
+
+    // Minimum size
+    if (!(window->Flags & (ImGuiWindowFlags_ChildWindow | ImGuiWindowFlags_AlwaysAutoResize)))
+    {
+        ImGuiWindow* window_for_height = window;
+        const float decoration_up_height = window_for_height->TitleBarHeight() + window_for_height->MenuBarHeight();
+        new_size = ImMax(new_size, g.Style.WindowMinSize);
+        new_size.y = ImMax(new_size.y, decoration_up_height + ImMax(0.0f, g.Style.WindowRounding - 1.0f)); // Reduce artifacts with very small windows
+    }
+    return new_size;
+}
+
+static void CalcWindowContentSizes(ImGuiWindow* window, ImVec2* content_size_current, ImVec2* content_size_ideal)
+{
+    bool preserve_old_content_sizes = false;
+    if (window->Collapsed && window->AutoFitFramesX <= 0 && window->AutoFitFramesY <= 0)
+        preserve_old_content_sizes = true;
+    else if (window->Hidden && window->HiddenFramesCannotSkipItems == 0 && window->HiddenFramesCanSkipItems > 0)
+        preserve_old_content_sizes = true;
+    if (preserve_old_content_sizes)
+    {
+        *content_size_current = window->ContentSize;
+        *content_size_ideal = window->ContentSizeIdeal;
+        return;
+    }
+
+    content_size_current->x = (window->ContentSizeExplicit.x != 0.0f) ? window->ContentSizeExplicit.x : IM_FLOOR(window->DC.CursorMaxPos.x - window->DC.CursorStartPos.x);
+    content_size_current->y = (window->ContentSizeExplicit.y != 0.0f) ? window->ContentSizeExplicit.y : IM_FLOOR(window->DC.CursorMaxPos.y - window->DC.CursorStartPos.y);
+    content_size_ideal->x = (window->ContentSizeExplicit.x != 0.0f) ? window->ContentSizeExplicit.x : IM_FLOOR(ImMax(window->DC.CursorMaxPos.x, window->DC.IdealMaxPos.x) - window->DC.CursorStartPos.x);
+    content_size_ideal->y = (window->ContentSizeExplicit.y != 0.0f) ? window->ContentSizeExplicit.y : IM_FLOOR(ImMax(window->DC.CursorMaxPos.y, window->DC.IdealMaxPos.y) - window->DC.CursorStartPos.y);
+}
+
+static ImVec2 CalcWindowAutoFitSize(ImGuiWindow* window, const ImVec2& size_contents)
+{
+    ImGuiContext& g = *GImGui;
+    ImGuiStyle& style = g.Style;
+    const float decoration_up_height = window->TitleBarHeight() + window->MenuBarHeight();
+    ImVec2 size_pad = window->WindowPadding * 2.0f;
+    ImVec2 size_desired = size_contents + size_pad + ImVec2(0.0f, decoration_up_height);
+    if (window->Flags & ImGuiWindowFlags_Tooltip)
+    {
+        // Tooltip always resize
+        return size_desired;
+    }
+    else
+    {
+        // Maximum window size is determined by the viewport size or monitor size
+        const bool is_popup = (window->Flags & ImGuiWindowFlags_Popup) != 0;
+        const bool is_menu = (window->Flags & ImGuiWindowFlags_ChildMenu) != 0;
+        ImVec2 size_min = style.WindowMinSize;
+        if (is_popup || is_menu) // Popups and menus bypass style.WindowMinSize by default, but we give then a non-zero minimum size to facilitate understanding problematic cases (e.g. empty popups)
+            size_min = ImMin(size_min, ImVec2(4.0f, 4.0f));
+
+        // FIXME-VIEWPORT-WORKAREA: May want to use GetWorkSize() instead of Size depending on the type of windows?
+        ImVec2 avail_size = ImGui::GetMainViewport()->Size;
+        ImVec2 size_auto_fit = ImClamp(size_desired, size_min, ImMax(size_min, avail_size - style.DisplaySafeAreaPadding * 2.0f));
+
+        // When the window cannot fit all contents (either because of constraints, either because screen is too small),
+        // we are growing the size on the other axis to compensate for expected scrollbar. FIXME: Might turn bigger than ViewportSize-WindowPadding.
+        ImVec2 size_auto_fit_after_constraint = CalcWindowSizeAfterConstraint(window, size_auto_fit);
+        bool will_have_scrollbar_x = (size_auto_fit_after_constraint.x - size_pad.x - 0.0f                 < size_contents.x && !(window->Flags & ImGuiWindowFlags_NoScrollbar) && (window->Flags & ImGuiWindowFlags_HorizontalScrollbar)) || (window->Flags & ImGuiWindowFlags_AlwaysHorizontalScrollbar);
+        bool will_have_scrollbar_y = (size_auto_fit_after_constraint.y - size_pad.y - decoration_up_height < size_contents.y && !(window->Flags & ImGuiWindowFlags_NoScrollbar)) || (window->Flags & ImGuiWindowFlags_AlwaysVerticalScrollbar);
+        if (will_have_scrollbar_x)
+            size_auto_fit.y += style.ScrollbarSize;
+        if (will_have_scrollbar_y)
+            size_auto_fit.x += style.ScrollbarSize;
+        return size_auto_fit;
+    }
+}
+
+ImVec2 ImGui::CalcWindowNextAutoFitSize(ImGuiWindow* window)
+{
+    ImVec2 size_contents_current;
+    ImVec2 size_contents_ideal;
+    CalcWindowContentSizes(window, &size_contents_current, &size_contents_ideal);
+    ImVec2 size_auto_fit = CalcWindowAutoFitSize(window, size_contents_ideal);
+    ImVec2 size_final = CalcWindowSizeAfterConstraint(window, size_auto_fit);
+    return size_final;
+}
+
+static ImGuiCol GetWindowBgColorIdx(ImGuiWindow* window)
+{
+    if (window->Flags & (ImGuiWindowFlags_Tooltip | ImGuiWindowFlags_Popup))
+        return ImGuiCol_PopupBg;
+    if (window->Flags & ImGuiWindowFlags_ChildWindow)
+        return ImGuiCol_ChildBg;
+    return ImGuiCol_WindowBg;
+}
+
+static void CalcResizePosSizeFromAnyCorner(ImGuiWindow* window, const ImVec2& corner_target, const ImVec2& corner_norm, ImVec2* out_pos, ImVec2* out_size)
+{
+    ImVec2 pos_min = ImLerp(corner_target, window->Pos, corner_norm);                // Expected window upper-left
+    ImVec2 pos_max = ImLerp(window->Pos + window->Size, corner_target, corner_norm); // Expected window lower-right
+    ImVec2 size_expected = pos_max - pos_min;
+    ImVec2 size_constrained = CalcWindowSizeAfterConstraint(window, size_expected);
+    *out_pos = pos_min;
+    if (corner_norm.x == 0.0f)
+        out_pos->x -= (size_constrained.x - size_expected.x);
+    if (corner_norm.y == 0.0f)
+        out_pos->y -= (size_constrained.y - size_expected.y);
+    *out_size = size_constrained;
+}
+
+// Data for resizing from corner
+struct ImGuiResizeGripDef
+{
+    ImVec2  CornerPosN;
+    ImVec2  InnerDir;
+    int     AngleMin12, AngleMax12;
+};
+static const ImGuiResizeGripDef resize_grip_def[4] =
+{
+    { ImVec2(1, 1), ImVec2(-1, -1), 0, 3 },  // Lower-right
+    { ImVec2(0, 1), ImVec2(+1, -1), 3, 6 },  // Lower-left
+    { ImVec2(0, 0), ImVec2(+1, +1), 6, 9 },  // Upper-left (Unused)
+    { ImVec2(1, 0), ImVec2(-1, +1), 9, 12 }  // Upper-right (Unused)
+};
+
+// Data for resizing from borders
+struct ImGuiResizeBorderDef
+{
+    ImVec2 InnerDir;
+    ImVec2 SegmentN1, SegmentN2;
+    float  OuterAngle;
+};
+static const ImGuiResizeBorderDef resize_border_def[4] =
+{
+    { ImVec2(+1, 0), ImVec2(0, 1), ImVec2(0, 0), IM_PI * 1.00f }, // Left
+    { ImVec2(-1, 0), ImVec2(1, 0), ImVec2(1, 1), IM_PI * 0.00f }, // Right
+    { ImVec2(0, +1), ImVec2(0, 0), ImVec2(1, 0), IM_PI * 1.50f }, // Up
+    { ImVec2(0, -1), ImVec2(1, 1), ImVec2(0, 1), IM_PI * 0.50f }  // Down
+};
+
+static ImRect GetResizeBorderRect(ImGuiWindow* window, int border_n, float perp_padding, float thickness)
+{
+    ImRect rect = window->Rect();
+    if (thickness == 0.0f)
+        rect.Max -= ImVec2(1, 1);
+    if (border_n == ImGuiDir_Left)  { return ImRect(rect.Min.x - thickness,    rect.Min.y + perp_padding, rect.Min.x + thickness,    rect.Max.y - perp_padding); }
+    if (border_n == ImGuiDir_Right) { return ImRect(rect.Max.x - thickness,    rect.Min.y + perp_padding, rect.Max.x + thickness,    rect.Max.y - perp_padding); }
+    if (border_n == ImGuiDir_Up)    { return ImRect(rect.Min.x + perp_padding, rect.Min.y - thickness,    rect.Max.x - perp_padding, rect.Min.y + thickness);    }
+    if (border_n == ImGuiDir_Down)  { return ImRect(rect.Min.x + perp_padding, rect.Max.y - thickness,    rect.Max.x - perp_padding, rect.Max.y + thickness);    }
+    IM_ASSERT(0);
+    return ImRect();
+}
+
+// 0..3: corners (Lower-right, Lower-left, Unused, Unused)
+ImGuiID ImGui::GetWindowResizeCornerID(ImGuiWindow* window, int n)
+{
+    IM_ASSERT(n >= 0 && n < 4);
+    ImGuiID id = window->ID;
+    id = ImHashStr("#RESIZE", 0, id);
+    id = ImHashData(&n, sizeof(int), id);
+    return id;
+}
+
+// Borders (Left, Right, Up, Down)
+ImGuiID ImGui::GetWindowResizeBorderID(ImGuiWindow* window, ImGuiDir dir)
+{
+    IM_ASSERT(dir >= 0 && dir < 4);
+    int n = (int)dir + 4;
+    ImGuiID id = window->ID;
+    id = ImHashStr("#RESIZE", 0, id);
+    id = ImHashData(&n, sizeof(int), id);
+    return id;
+}
+
+// Handle resize for: Resize Grips, Borders, Gamepad
+// Return true when using auto-fit (double click on resize grip)
+static bool ImGui::UpdateWindowManualResize(ImGuiWindow* window, const ImVec2& size_auto_fit, int* border_held, int resize_grip_count, ImU32 resize_grip_col[4], const ImRect& visibility_rect)
+{
+    ImGuiContext& g = *GImGui;
+    ImGuiWindowFlags flags = window->Flags;
+
+    if ((flags & ImGuiWindowFlags_NoResize) || (flags & ImGuiWindowFlags_AlwaysAutoResize) || window->AutoFitFramesX > 0 || window->AutoFitFramesY > 0)
+        return false;
+    if (window->WasActive == false) // Early out to avoid running this code for e.g. an hidden implicit/fallback Debug window.
+        return false;
+
+    bool ret_auto_fit = false;
+    const int resize_border_count = g.IO.ConfigWindowsResizeFromEdges ? 4 : 0;
+    const float grip_draw_size = IM_FLOOR(ImMax(g.FontSize * 1.35f, window->WindowRounding + 1.0f + g.FontSize * 0.2f));
+    const float grip_hover_inner_size = IM_FLOOR(grip_draw_size * 0.75f);
+    const float grip_hover_outer_size = g.IO.ConfigWindowsResizeFromEdges ? WINDOWS_HOVER_PADDING : 0.0f;
+
+    ImVec2 pos_target(FLT_MAX, FLT_MAX);
+    ImVec2 size_target(FLT_MAX, FLT_MAX);
+
+    // Resize grips and borders are on layer 1
+    window->DC.NavLayerCurrent = ImGuiNavLayer_Menu;
+
+    // Manual resize grips
+    PushID("#RESIZE");
+    for (int resize_grip_n = 0; resize_grip_n < resize_grip_count; resize_grip_n++)
+    {
+        const ImGuiResizeGripDef& def = resize_grip_def[resize_grip_n];
+        const ImVec2 corner = ImLerp(window->Pos, window->Pos + window->Size, def.CornerPosN);
+
+        // Using the FlattenChilds button flag we make the resize button accessible even if we are hovering over a child window
+        bool hovered, held;
+        ImRect resize_rect(corner - def.InnerDir * grip_hover_outer_size, corner + def.InnerDir * grip_hover_inner_size);
+        if (resize_rect.Min.x > resize_rect.Max.x) ImSwap(resize_rect.Min.x, resize_rect.Max.x);
+        if (resize_rect.Min.y > resize_rect.Max.y) ImSwap(resize_rect.Min.y, resize_rect.Max.y);
+        ImGuiID resize_grip_id = window->GetID(resize_grip_n); // == GetWindowResizeCornerID()
+        KeepAliveID(resize_grip_id);
+        ButtonBehavior(resize_rect, resize_grip_id, &hovered, &held, ImGuiButtonFlags_FlattenChildren | ImGuiButtonFlags_NoNavFocus);
+        //GetForegroundDrawList(window)->AddRect(resize_rect.Min, resize_rect.Max, IM_COL32(255, 255, 0, 255));
+        if (hovered || held)
+            g.MouseCursor = (resize_grip_n & 1) ? ImGuiMouseCursor_ResizeNESW : ImGuiMouseCursor_ResizeNWSE;
+
+        if (held && g.IO.MouseClickedCount[0] == 2 && resize_grip_n == 0)
+        {
+            // Manual auto-fit when double-clicking
+            size_target = CalcWindowSizeAfterConstraint(window, size_auto_fit);
+            ret_auto_fit = true;
+            ClearActiveID();
+        }
+        else if (held)
+        {
+            // Resize from any of the four corners
+            // We don't use an incremental MouseDelta but rather compute an absolute target size based on mouse position
+            ImVec2 clamp_min = ImVec2(def.CornerPosN.x == 1.0f ? visibility_rect.Min.x : -FLT_MAX, def.CornerPosN.y == 1.0f ? visibility_rect.Min.y : -FLT_MAX);
+            ImVec2 clamp_max = ImVec2(def.CornerPosN.x == 0.0f ? visibility_rect.Max.x : +FLT_MAX, def.CornerPosN.y == 0.0f ? visibility_rect.Max.y : +FLT_MAX);
+            ImVec2 corner_target = g.IO.MousePos - g.ActiveIdClickOffset + ImLerp(def.InnerDir * grip_hover_outer_size, def.InnerDir * -grip_hover_inner_size, def.CornerPosN); // Corner of the window corresponding to our corner grip
+            corner_target = ImClamp(corner_target, clamp_min, clamp_max);
+            CalcResizePosSizeFromAnyCorner(window, corner_target, def.CornerPosN, &pos_target, &size_target);
+        }
+
+        // Only lower-left grip is visible before hovering/activating
+        if (resize_grip_n == 0 || held || hovered)
+            resize_grip_col[resize_grip_n] = GetColorU32(held ? ImGuiCol_ResizeGripActive : hovered ? ImGuiCol_ResizeGripHovered : ImGuiCol_ResizeGrip);
+    }
+    for (int border_n = 0; border_n < resize_border_count; border_n++)
+    {
+        const ImGuiResizeBorderDef& def = resize_border_def[border_n];
+        const ImGuiAxis axis = (border_n == ImGuiDir_Left || border_n == ImGuiDir_Right) ? ImGuiAxis_X : ImGuiAxis_Y;
+
+        bool hovered, held;
+        ImRect border_rect = GetResizeBorderRect(window, border_n, grip_hover_inner_size, WINDOWS_HOVER_PADDING);
+        ImGuiID border_id = window->GetID(border_n + 4); // == GetWindowResizeBorderID()
+        KeepAliveID(border_id);
+        ButtonBehavior(border_rect, border_id, &hovered, &held, ImGuiButtonFlags_FlattenChildren | ImGuiButtonFlags_NoNavFocus);
+        //GetForegroundDrawLists(window)->AddRect(border_rect.Min, border_rect.Max, IM_COL32(255, 255, 0, 255));
+        if ((hovered && g.HoveredIdTimer > WINDOWS_RESIZE_FROM_EDGES_FEEDBACK_TIMER) || held)
+        {
+            g.MouseCursor = (axis == ImGuiAxis_X) ? ImGuiMouseCursor_ResizeEW : ImGuiMouseCursor_ResizeNS;
+            if (held)
+                *border_held = border_n;
+        }
+        if (held)
+        {
+            ImVec2 clamp_min(border_n == ImGuiDir_Right ? visibility_rect.Min.x : -FLT_MAX, border_n == ImGuiDir_Down ? visibility_rect.Min.y : -FLT_MAX);
+            ImVec2 clamp_max(border_n == ImGuiDir_Left  ? visibility_rect.Max.x : +FLT_MAX, border_n == ImGuiDir_Up   ? visibility_rect.Max.y : +FLT_MAX);
+            ImVec2 border_target = window->Pos;
+            border_target[axis] = g.IO.MousePos[axis] - g.ActiveIdClickOffset[axis] + WINDOWS_HOVER_PADDING;
+            border_target = ImClamp(border_target, clamp_min, clamp_max);
+            CalcResizePosSizeFromAnyCorner(window, border_target, ImMin(def.SegmentN1, def.SegmentN2), &pos_target, &size_target);
+        }
+    }
+    PopID();
+
+    // Restore nav layer
+    window->DC.NavLayerCurrent = ImGuiNavLayer_Main;
+
+    // Navigation resize (keyboard/gamepad)
+    if (g.NavWindowingTarget && g.NavWindowingTarget->RootWindow == window)
+    {
+        ImVec2 nav_resize_delta;
+        if (g.NavInputSource == ImGuiInputSource_Keyboard && g.IO.KeyShift)
+            nav_resize_delta = GetNavInputAmount2d(ImGuiNavDirSourceFlags_RawKeyboard, ImGuiNavReadMode_Down);
+        if (g.NavInputSource == ImGuiInputSource_Gamepad)
+            nav_resize_delta = GetNavInputAmount2d(ImGuiNavDirSourceFlags_PadDPad, ImGuiNavReadMode_Down);
+        if (nav_resize_delta.x != 0.0f || nav_resize_delta.y != 0.0f)
+        {
+            const float NAV_RESIZE_SPEED = 600.0f;
+            nav_resize_delta *= ImFloor(NAV_RESIZE_SPEED * g.IO.DeltaTime * ImMin(g.IO.DisplayFramebufferScale.x, g.IO.DisplayFramebufferScale.y));
+            nav_resize_delta = ImMax(nav_resize_delta, visibility_rect.Min - window->Pos - window->Size);
+            g.NavWindowingToggleLayer = false;
+            g.NavDisableMouseHover = true;
+            resize_grip_col[0] = GetColorU32(ImGuiCol_ResizeGripActive);
+            // FIXME-NAV: Should store and accumulate into a separate size buffer to handle sizing constraints properly, right now a constraint will make us stuck.
+            size_target = CalcWindowSizeAfterConstraint(window, window->SizeFull + nav_resize_delta);
+        }
+    }
+
+    // Apply back modified position/size to window
+    if (size_target.x != FLT_MAX)
+    {
+        window->SizeFull = size_target;
+        MarkIniSettingsDirty(window);
+    }
+    if (pos_target.x != FLT_MAX)
+    {
+        window->Pos = ImFloor(pos_target);
+        MarkIniSettingsDirty(window);
+    }
+
+    window->Size = window->SizeFull;
+    return ret_auto_fit;
+}
+
+static inline void ClampWindowRect(ImGuiWindow* window, const ImRect& visibility_rect)
+{
+    ImGuiContext& g = *GImGui;
+    ImVec2 size_for_clamping = window->Size;
+    if (g.IO.ConfigWindowsMoveFromTitleBarOnly && !(window->Flags & ImGuiWindowFlags_NoTitleBar))
+        size_for_clamping.y = window->TitleBarHeight();
+    window->Pos = ImClamp(window->Pos, visibility_rect.Min - size_for_clamping, visibility_rect.Max);
+}
+
+static void ImGui::RenderWindowOuterBorders(ImGuiWindow* window)
+{
+    ImGuiContext& g = *GImGui;
+    float rounding = window->WindowRounding;
+    float border_size = window->WindowBorderSize;
+    if (border_size > 0.0f && !(window->Flags & ImGuiWindowFlags_NoBackground))
+        window->DrawList->AddRect(window->Pos, window->Pos + window->Size, GetColorU32(ImGuiCol_Border), rounding, 0, border_size);
+
+    int border_held = window->ResizeBorderHeld;
+    if (border_held != -1)
+    {
+        const ImGuiResizeBorderDef& def = resize_border_def[border_held];
+        ImRect border_r = GetResizeBorderRect(window, border_held, rounding, 0.0f);
+        window->DrawList->PathArcTo(ImLerp(border_r.Min, border_r.Max, def.SegmentN1) + ImVec2(0.5f, 0.5f) + def.InnerDir * rounding, rounding, def.OuterAngle - IM_PI * 0.25f, def.OuterAngle);
+        window->DrawList->PathArcTo(ImLerp(border_r.Min, border_r.Max, def.SegmentN2) + ImVec2(0.5f, 0.5f) + def.InnerDir * rounding, rounding, def.OuterAngle, def.OuterAngle + IM_PI * 0.25f);
+        window->DrawList->PathStroke(GetColorU32(ImGuiCol_SeparatorActive), 0, ImMax(2.0f, border_size)); // Thicker than usual
+    }
+    if (g.Style.FrameBorderSize > 0 && !(window->Flags & ImGuiWindowFlags_NoTitleBar))
+    {
+        float y = window->Pos.y + window->TitleBarHeight() - 1;
+        window->DrawList->AddLine(ImVec2(window->Pos.x + border_size, y), ImVec2(window->Pos.x + window->Size.x - border_size, y), GetColorU32(ImGuiCol_Border), g.Style.FrameBorderSize);
+    }
+}
+
+// Draw background and borders
+// Draw and handle scrollbars
+void ImGui::RenderWindowDecorations(ImGuiWindow* window, const ImRect& title_bar_rect, bool title_bar_is_highlight, int resize_grip_count, const ImU32 resize_grip_col[4], float resize_grip_draw_size)
+{
+    ImGuiContext& g = *GImGui;
+    ImGuiStyle& style = g.Style;
+    ImGuiWindowFlags flags = window->Flags;
+
+    // Ensure that ScrollBar doesn't read last frame's SkipItems
+    IM_ASSERT(window->BeginCount == 0);
+    window->SkipItems = false;
+
+    // Draw window + handle manual resize
+    // As we highlight the title bar when want_focus is set, multiple reappearing windows will have have their title bar highlighted on their reappearing frame.
+    const float window_rounding = window->WindowRounding;
+    const float window_border_size = window->WindowBorderSize;
+    if (window->Collapsed)
+    {
+        // Title bar only
+        float backup_border_size = style.FrameBorderSize;
+        g.Style.FrameBorderSize = window->WindowBorderSize;
+        ImU32 title_bar_col = GetColorU32((title_bar_is_highlight && !g.NavDisableHighlight) ? ImGuiCol_TitleBgActive : ImGuiCol_TitleBgCollapsed);
+        RenderFrame(title_bar_rect.Min, title_bar_rect.Max, title_bar_col, true, window_rounding);
+        g.Style.FrameBorderSize = backup_border_size;
+    }
+    else
+    {
+        // Window background
+        if (!(flags & ImGuiWindowFlags_NoBackground))
+        {
+            ImU32 bg_col = GetColorU32(GetWindowBgColorIdx(window));
+            bool override_alpha = false;
+            float alpha = 1.0f;
+            if (g.NextWindowData.Flags & ImGuiNextWindowDataFlags_HasBgAlpha)
+            {
+                alpha = g.NextWindowData.BgAlphaVal;
+                override_alpha = true;
+            }
+            if (override_alpha)
+                bg_col = (bg_col & ~IM_COL32_A_MASK) | (IM_F32_TO_INT8_SAT(alpha) << IM_COL32_A_SHIFT);
+            window->DrawList->AddRectFilled(window->Pos + ImVec2(0, window->TitleBarHeight()), window->Pos + window->Size, bg_col, window_rounding, (flags & ImGuiWindowFlags_NoTitleBar) ? 0 : ImDrawFlags_RoundCornersBottom);
+        }
+
+        // Title bar
+        if (!(flags & ImGuiWindowFlags_NoTitleBar))
+        {
+            ImU32 title_bar_col = GetColorU32(title_bar_is_highlight ? ImGuiCol_TitleBgActive : ImGuiCol_TitleBg);
+            window->DrawList->AddRectFilled(title_bar_rect.Min, title_bar_rect.Max, title_bar_col, window_rounding, ImDrawFlags_RoundCornersTop);
+        }
+
+        // Menu bar
+        if (flags & ImGuiWindowFlags_MenuBar)
+        {
+            ImRect menu_bar_rect = window->MenuBarRect();
+            menu_bar_rect.ClipWith(window->Rect());  // Soft clipping, in particular child window don't have minimum size covering the menu bar so this is useful for them.
+            window->DrawList->AddRectFilled(menu_bar_rect.Min + ImVec2(window_border_size, 0), menu_bar_rect.Max - ImVec2(window_border_size, 0), GetColorU32(ImGuiCol_MenuBarBg), (flags & ImGuiWindowFlags_NoTitleBar) ? window_rounding : 0.0f, ImDrawFlags_RoundCornersTop);
+            if (style.FrameBorderSize > 0.0f && menu_bar_rect.Max.y < window->Pos.y + window->Size.y)
+                window->DrawList->AddLine(menu_bar_rect.GetBL(), menu_bar_rect.GetBR(), GetColorU32(ImGuiCol_Border), style.FrameBorderSize);
+        }
+
+        // Scrollbars
+        if (window->ScrollbarX)
+            Scrollbar(ImGuiAxis_X);
+        if (window->ScrollbarY)
+            Scrollbar(ImGuiAxis_Y);
+
+        // Render resize grips (after their input handling so we don't have a frame of latency)
+        if (!(flags & ImGuiWindowFlags_NoResize))
+        {
+            for (int resize_grip_n = 0; resize_grip_n < resize_grip_count; resize_grip_n++)
+            {
+                const ImGuiResizeGripDef& grip = resize_grip_def[resize_grip_n];
+                const ImVec2 corner = ImLerp(window->Pos, window->Pos + window->Size, grip.CornerPosN);
+                window->DrawList->PathLineTo(corner + grip.InnerDir * ((resize_grip_n & 1) ? ImVec2(window_border_size, resize_grip_draw_size) : ImVec2(resize_grip_draw_size, window_border_size)));
+                window->DrawList->PathLineTo(corner + grip.InnerDir * ((resize_grip_n & 1) ? ImVec2(resize_grip_draw_size, window_border_size) : ImVec2(window_border_size, resize_grip_draw_size)));
+                window->DrawList->PathArcToFast(ImVec2(corner.x + grip.InnerDir.x * (window_rounding + window_border_size), corner.y + grip.InnerDir.y * (window_rounding + window_border_size)), window_rounding, grip.AngleMin12, grip.AngleMax12);
+                window->DrawList->PathFillConvex(resize_grip_col[resize_grip_n]);
+            }
+        }
+
+        // Borders
+        RenderWindowOuterBorders(window);
+    }
+}
+
+// Render title text, collapse button, close button
+void ImGui::RenderWindowTitleBarContents(ImGuiWindow* window, const ImRect& title_bar_rect, const char* name, bool* p_open)
+{
+    ImGuiContext& g = *GImGui;
+    ImGuiStyle& style = g.Style;
+    ImGuiWindowFlags flags = window->Flags;
+
+    const bool has_close_button = (p_open != NULL);
+    const bool has_collapse_button = !(flags & ImGuiWindowFlags_NoCollapse) && (style.WindowMenuButtonPosition != ImGuiDir_None);
+
+    // Close & Collapse button are on the Menu NavLayer and don't default focus (unless there's nothing else on that layer)
+    // FIXME-NAV: Might want (or not?) to set the equivalent of ImGuiButtonFlags_NoNavFocus so that mouse clicks on standard title bar items don't necessarily set nav/keyboard ref?
+    const ImGuiItemFlags item_flags_backup = g.CurrentItemFlags;
+    g.CurrentItemFlags |= ImGuiItemFlags_NoNavDefaultFocus;
+    window->DC.NavLayerCurrent = ImGuiNavLayer_Menu;
+
+    // Layout buttons
+    // FIXME: Would be nice to generalize the subtleties expressed here into reusable code.
+    float pad_l = style.FramePadding.x;
+    float pad_r = style.FramePadding.x;
+    float button_sz = g.FontSize;
+    ImVec2 close_button_pos;
+    ImVec2 collapse_button_pos;
+    if (has_close_button)
+    {
+        pad_r += button_sz;
+        close_button_pos = ImVec2(title_bar_rect.Max.x - pad_r - style.FramePadding.x, title_bar_rect.Min.y);
+    }
+    if (has_collapse_button && style.WindowMenuButtonPosition == ImGuiDir_Right)
+    {
+        pad_r += button_sz;
+        collapse_button_pos = ImVec2(title_bar_rect.Max.x - pad_r - style.FramePadding.x, title_bar_rect.Min.y);
+    }
+    if (has_collapse_button && style.WindowMenuButtonPosition == ImGuiDir_Left)
+    {
+        collapse_button_pos = ImVec2(title_bar_rect.Min.x + pad_l - style.FramePadding.x, title_bar_rect.Min.y);
+        pad_l += button_sz;
+    }
+
+    // Collapse button (submitting first so it gets priority when choosing a navigation init fallback)
+    if (has_collapse_button)
+        if (CollapseButton(window->GetID("#COLLAPSE"), collapse_button_pos))
+            window->WantCollapseToggle = true; // Defer actual collapsing to next frame as we are too far in the Begin() function
+
+    // Close button
+    if (has_close_button)
+        if (CloseButton(window->GetID("#CLOSE"), close_button_pos))
+            *p_open = false;
+
+    window->DC.NavLayerCurrent = ImGuiNavLayer_Main;
+    g.CurrentItemFlags = item_flags_backup;
+
+    // Title bar text (with: horizontal alignment, avoiding collapse/close button, optional "unsaved document" marker)
+    // FIXME: Refactor text alignment facilities along with RenderText helpers, this is WAY too much messy code..
+    const float marker_size_x = (flags & ImGuiWindowFlags_UnsavedDocument) ? button_sz * 0.80f : 0.0f;
+    const ImVec2 text_size = CalcTextSize(name, NULL, true) + ImVec2(marker_size_x, 0.0f);
+
+    // As a nice touch we try to ensure that centered title text doesn't get affected by visibility of Close/Collapse button,
+    // while uncentered title text will still reach edges correctly.
+    if (pad_l > style.FramePadding.x)
+        pad_l += g.Style.ItemInnerSpacing.x;
+    if (pad_r > style.FramePadding.x)
+        pad_r += g.Style.ItemInnerSpacing.x;
+    if (style.WindowTitleAlign.x > 0.0f && style.WindowTitleAlign.x < 1.0f)
+    {
+        float centerness = ImSaturate(1.0f - ImFabs(style.WindowTitleAlign.x - 0.5f) * 2.0f); // 0.0f on either edges, 1.0f on center
+        float pad_extend = ImMin(ImMax(pad_l, pad_r), title_bar_rect.GetWidth() - pad_l - pad_r - text_size.x);
+        pad_l = ImMax(pad_l, pad_extend * centerness);
+        pad_r = ImMax(pad_r, pad_extend * centerness);
+    }
+
+    ImRect layout_r(title_bar_rect.Min.x + pad_l, title_bar_rect.Min.y, title_bar_rect.Max.x - pad_r, title_bar_rect.Max.y);
+    ImRect clip_r(layout_r.Min.x, layout_r.Min.y, ImMin(layout_r.Max.x + g.Style.ItemInnerSpacing.x, title_bar_rect.Max.x), layout_r.Max.y);
+    if (flags & ImGuiWindowFlags_UnsavedDocument)
+    {
+        ImVec2 marker_pos;
+        marker_pos.x = ImClamp(layout_r.Min.x + (layout_r.GetWidth() - text_size.x) * style.WindowTitleAlign.x + text_size.x, layout_r.Min.x, layout_r.Max.x);
+        marker_pos.y = (layout_r.Min.y + layout_r.Max.y) * 0.5f;
+        if (marker_pos.x > layout_r.Min.x)
+        {
+            RenderBullet(window->DrawList, marker_pos, GetColorU32(ImGuiCol_Text));
+            clip_r.Max.x = ImMin(clip_r.Max.x, marker_pos.x - (int)(marker_size_x * 0.5f));
+        }
+    }
+    //if (g.IO.KeyShift) window->DrawList->AddRect(layout_r.Min, layout_r.Max, IM_COL32(255, 128, 0, 255)); // [DEBUG]
+    //if (g.IO.KeyCtrl) window->DrawList->AddRect(clip_r.Min, clip_r.Max, IM_COL32(255, 128, 0, 255)); // [DEBUG]
+    RenderTextClipped(layout_r.Min, layout_r.Max, name, NULL, &text_size, style.WindowTitleAlign, &clip_r);
+}
+
+void ImGui::UpdateWindowParentAndRootLinks(ImGuiWindow* window, ImGuiWindowFlags flags, ImGuiWindow* parent_window)
+{
+    window->ParentWindow = parent_window;
+    window->RootWindow = window->RootWindowPopupTree = window->RootWindowForTitleBarHighlight = window->RootWindowForNav = window;
+    if (parent_window && (flags & ImGuiWindowFlags_ChildWindow) && !(flags & ImGuiWindowFlags_Tooltip))
+        window->RootWindow = parent_window->RootWindow;
+    if (parent_window && (flags & ImGuiWindowFlags_Popup))
+        window->RootWindowPopupTree = parent_window->RootWindowPopupTree;
+    if (parent_window && !(flags & ImGuiWindowFlags_Modal) && (flags & (ImGuiWindowFlags_ChildWindow | ImGuiWindowFlags_Popup)))
+        window->RootWindowForTitleBarHighlight = parent_window->RootWindowForTitleBarHighlight;
+    while (window->RootWindowForNav->Flags & ImGuiWindowFlags_NavFlattened)
+    {
+        IM_ASSERT(window->RootWindowForNav->ParentWindow != NULL);
+        window->RootWindowForNav = window->RootWindowForNav->ParentWindow;
+    }
+}
+
+// When a modal popup is open, newly created windows that want focus (i.e. are not popups and do not specify ImGuiWindowFlags_NoFocusOnAppearing)
+// should be positioned behind that modal window, unless the window was created inside the modal begin-stack.
+// In case of multiple stacked modals newly created window honors begin stack order and does not go below its own modal parent.
+// - Window             // FindBlockingModal() returns Modal1
+//   - Window           //                  .. returns Modal1
+//   - Modal1           //                  .. returns Modal2
+//      - Window        //                  .. returns Modal2
+//          - Window    //                  .. returns Modal2
+//          - Modal2    //                  .. returns Modal2
+static ImGuiWindow* ImGui::FindBlockingModal(ImGuiWindow* window)
+{
+    ImGuiContext& g = *GImGui;
+    if (g.OpenPopupStack.Size <= 0)
+        return NULL;
+
+    // Find a modal that has common parent with specified window. Specified window should be positioned behind that modal.
+    for (int i = g.OpenPopupStack.Size - 1; i >= 0; i--)
+    {
+        ImGuiWindow* popup_window = g.OpenPopupStack.Data[i].Window;
+        if (popup_window == NULL || !(popup_window->Flags & ImGuiWindowFlags_Modal))
+            continue;
+        if (!popup_window->Active && !popup_window->WasActive)      // Check WasActive, because this code may run before popup renders on current frame, also check Active to handle newly created windows.
+            continue;
+        if (IsWindowWithinBeginStackOf(window, popup_window))       // Window is rendered over last modal, no render order change needed.
+            break;
+        for (ImGuiWindow* parent = popup_window->ParentWindowInBeginStack->RootWindow; parent != NULL; parent = parent->ParentWindowInBeginStack->RootWindow)
+            if (IsWindowWithinBeginStackOf(window, parent))
+                return popup_window;                                // Place window above its begin stack parent.
+    }
+    return NULL;
+}
+
+// Push a new Dear ImGui window to add widgets to.
+// - A default window called "Debug" is automatically stacked at the beginning of every frame so you can use widgets without explicitly calling a Begin/End pair.
+// - Begin/End can be called multiple times during the frame with the same window name to append content.
+// - The window name is used as a unique identifier to preserve window information across frames (and save rudimentary information to the .ini file).
+//   You can use the "##" or "###" markers to use the same label with different id, or same id with different label. See documentation at the top of this file.
+// - Return false when window is collapsed, so you can early out in your code. You always need to call ImGui::End() even if false is returned.
+// - Passing 'bool* p_open' displays a Close button on the upper-right corner of the window, the pointed value will be set to false when the button is pressed.
+bool ImGui::Begin(const char* name, bool* p_open, ImGuiWindowFlags flags)
+{
+    ImGuiContext& g = *GImGui;
+    const ImGuiStyle& style = g.Style;
+    IM_ASSERT(name != NULL && name[0] != '\0');     // Window name required
+    IM_ASSERT(g.WithinFrameScope);                  // Forgot to call ImGui::NewFrame()
+    IM_ASSERT(g.FrameCountEnded != g.FrameCount);   // Called ImGui::Render() or ImGui::EndFrame() and haven't called ImGui::NewFrame() again yet
+
+    // Find or create
+    ImGuiWindow* window = FindWindowByName(name);
+    const bool window_just_created = (window == NULL);
+    if (window_just_created)
+        window = CreateNewWindow(name, flags);
+    else
+        UpdateWindowInFocusOrderList(window, window_just_created, flags);
+
+    // Automatically disable manual moving/resizing when NoInputs is set
+    if ((flags & ImGuiWindowFlags_NoInputs) == ImGuiWindowFlags_NoInputs)
+        flags |= ImGuiWindowFlags_NoMove | ImGuiWindowFlags_NoResize;
+
+    if (flags & ImGuiWindowFlags_NavFlattened)
+        IM_ASSERT(flags & ImGuiWindowFlags_ChildWindow);
+
+    const int current_frame = g.FrameCount;
+    const bool first_begin_of_the_frame = (window->LastFrameActive != current_frame);
+    window->IsFallbackWindow = (g.CurrentWindowStack.Size == 0 && g.WithinFrameScopeWithImplicitWindow);
+
+    // Update the Appearing flag
+    bool window_just_activated_by_user = (window->LastFrameActive < current_frame - 1);   // Not using !WasActive because the implicit "Debug" window would always toggle off->on
+    if (flags & ImGuiWindowFlags_Popup)
+    {
+        ImGuiPopupData& popup_ref = g.OpenPopupStack[g.BeginPopupStack.Size];
+        window_just_activated_by_user |= (window->PopupId != popup_ref.PopupId); // We recycle popups so treat window as activated if popup id changed
+        window_just_activated_by_user |= (window != popup_ref.Window);
+    }
+    window->Appearing = window_just_activated_by_user;
+    if (window->Appearing)
+        SetWindowConditionAllowFlags(window, ImGuiCond_Appearing, true);
+
+    // Update Flags, LastFrameActive, BeginOrderXXX fields
+    if (first_begin_of_the_frame)
+    {
+        window->Flags = (ImGuiWindowFlags)flags;
+        window->LastFrameActive = current_frame;
+        window->LastTimeActive = (float)g.Time;
+        window->BeginOrderWithinParent = 0;
+        window->BeginOrderWithinContext = (short)(g.WindowsActiveCount++);
+    }
+    else
+    {
+        flags = window->Flags;
+    }
+
+    // Parent window is latched only on the first call to Begin() of the frame, so further append-calls can be done from a different window stack
+    ImGuiWindow* parent_window_in_stack = g.CurrentWindowStack.empty() ? NULL : g.CurrentWindowStack.back().Window;
+    ImGuiWindow* parent_window = first_begin_of_the_frame ? ((flags & (ImGuiWindowFlags_ChildWindow | ImGuiWindowFlags_Popup)) ? parent_window_in_stack : NULL) : window->ParentWindow;
+    IM_ASSERT(parent_window != NULL || !(flags & ImGuiWindowFlags_ChildWindow));
+
+    // We allow window memory to be compacted so recreate the base stack when needed.
+    if (window->IDStack.Size == 0)
+        window->IDStack.push_back(window->ID);
+
+    // Add to stack
+    // We intentionally set g.CurrentWindow to NULL to prevent usage until when the viewport is set, then will call SetCurrentWindow()
+    g.CurrentWindow = window;
+    ImGuiWindowStackData window_stack_data;
+    window_stack_data.Window = window;
+    window_stack_data.ParentLastItemDataBackup = g.LastItemData;
+    window_stack_data.StackSizesOnBegin.SetToCurrentState();
+    g.CurrentWindowStack.push_back(window_stack_data);
+    g.CurrentWindow = NULL;
+    if (flags & ImGuiWindowFlags_ChildMenu)
+        g.BeginMenuCount++;
+
+    if (flags & ImGuiWindowFlags_Popup)
+    {
+        ImGuiPopupData& popup_ref = g.OpenPopupStack[g.BeginPopupStack.Size];
+        popup_ref.Window = window;
+        popup_ref.ParentNavLayer = parent_window_in_stack->DC.NavLayerCurrent;
+        g.BeginPopupStack.push_back(popup_ref);
+        window->PopupId = popup_ref.PopupId;
+    }
+
+    // Update ->RootWindow and others pointers (before any possible call to FocusWindow)
+    if (first_begin_of_the_frame)
+    {
+        UpdateWindowParentAndRootLinks(window, flags, parent_window);
+        window->ParentWindowInBeginStack = parent_window_in_stack;
+    }
+
+    // Process SetNextWindow***() calls
+    // (FIXME: Consider splitting the HasXXX flags into X/Y components
+    bool window_pos_set_by_api = false;
+    bool window_size_x_set_by_api = false, window_size_y_set_by_api = false;
+    if (g.NextWindowData.Flags & ImGuiNextWindowDataFlags_HasPos)
+    {
+        window_pos_set_by_api = (window->SetWindowPosAllowFlags & g.NextWindowData.PosCond) != 0;
+        if (window_pos_set_by_api && ImLengthSqr(g.NextWindowData.PosPivotVal) > 0.00001f)
+        {
+            // May be processed on the next frame if this is our first frame and we are measuring size
+            // FIXME: Look into removing the branch so everything can go through this same code path for consistency.
+            window->SetWindowPosVal = g.NextWindowData.PosVal;
+            window->SetWindowPosPivot = g.NextWindowData.PosPivotVal;
+            window->SetWindowPosAllowFlags &= ~(ImGuiCond_Once | ImGuiCond_FirstUseEver | ImGuiCond_Appearing);
+        }
+        else
+        {
+            SetWindowPos(window, g.NextWindowData.PosVal, g.NextWindowData.PosCond);
+        }
+    }
+    if (g.NextWindowData.Flags & ImGuiNextWindowDataFlags_HasSize)
+    {
+        window_size_x_set_by_api = (window->SetWindowSizeAllowFlags & g.NextWindowData.SizeCond) != 0 && (g.NextWindowData.SizeVal.x > 0.0f);
+        window_size_y_set_by_api = (window->SetWindowSizeAllowFlags & g.NextWindowData.SizeCond) != 0 && (g.NextWindowData.SizeVal.y > 0.0f);
+        SetWindowSize(window, g.NextWindowData.SizeVal, g.NextWindowData.SizeCond);
+    }
+    if (g.NextWindowData.Flags & ImGuiNextWindowDataFlags_HasScroll)
+    {
+        if (g.NextWindowData.ScrollVal.x >= 0.0f)
+        {
+            window->ScrollTarget.x = g.NextWindowData.ScrollVal.x;
+            window->ScrollTargetCenterRatio.x = 0.0f;
+        }
+        if (g.NextWindowData.ScrollVal.y >= 0.0f)
+        {
+            window->ScrollTarget.y = g.NextWindowData.ScrollVal.y;
+            window->ScrollTargetCenterRatio.y = 0.0f;
+        }
+    }
+    if (g.NextWindowData.Flags & ImGuiNextWindowDataFlags_HasContentSize)
+        window->ContentSizeExplicit = g.NextWindowData.ContentSizeVal;
+    else if (first_begin_of_the_frame)
+        window->ContentSizeExplicit = ImVec2(0.0f, 0.0f);
+    if (g.NextWindowData.Flags & ImGuiNextWindowDataFlags_HasCollapsed)
+        SetWindowCollapsed(window, g.NextWindowData.CollapsedVal, g.NextWindowData.CollapsedCond);
+    if (g.NextWindowData.Flags & ImGuiNextWindowDataFlags_HasFocus)
+        FocusWindow(window);
+    if (window->Appearing)
+        SetWindowConditionAllowFlags(window, ImGuiCond_Appearing, false);
+
+    // When reusing window again multiple times a frame, just append content (don't need to setup again)
+    if (first_begin_of_the_frame)
+    {
+        // Initialize
+        const bool window_is_child_tooltip = (flags & ImGuiWindowFlags_ChildWindow) && (flags & ImGuiWindowFlags_Tooltip); // FIXME-WIP: Undocumented behavior of Child+Tooltip for pinned tooltip (#1345)
+        const bool window_just_appearing_after_hidden_for_resize = (window->HiddenFramesCannotSkipItems > 0);
+        window->Active = true;
+        window->HasCloseButton = (p_open != NULL);
+        window->ClipRect = ImVec4(-FLT_MAX, -FLT_MAX, +FLT_MAX, +FLT_MAX);
+        window->IDStack.resize(1);
+        window->DrawList->_ResetForNewFrame();
+        window->DC.CurrentTableIdx = -1;
+
+        // Restore buffer capacity when woken from a compacted state, to avoid
+        if (window->MemoryCompacted)
+            GcAwakeTransientWindowBuffers(window);
+
+        // Update stored window name when it changes (which can _only_ happen with the "###" operator, so the ID would stay unchanged).
+        // The title bar always display the 'name' parameter, so we only update the string storage if it needs to be visible to the end-user elsewhere.
+        bool window_title_visible_elsewhere = false;
+        if (g.NavWindowingListWindow != NULL && (window->Flags & ImGuiWindowFlags_NoNavFocus) == 0)   // Window titles visible when using CTRL+TAB
+            window_title_visible_elsewhere = true;
+        if (window_title_visible_elsewhere && !window_just_created && strcmp(name, window->Name) != 0)
+        {
+            size_t buf_len = (size_t)window->NameBufLen;
+            window->Name = ImStrdupcpy(window->Name, &buf_len, name);
+            window->NameBufLen = (int)buf_len;
+        }
+
+        // UPDATE CONTENTS SIZE, UPDATE HIDDEN STATUS
+
+        // Update contents size from last frame for auto-fitting (or use explicit size)
+        CalcWindowContentSizes(window, &window->ContentSize, &window->ContentSizeIdeal);
+        if (window->HiddenFramesCanSkipItems > 0)
+            window->HiddenFramesCanSkipItems--;
+        if (window->HiddenFramesCannotSkipItems > 0)
+            window->HiddenFramesCannotSkipItems--;
+        if (window->HiddenFramesForRenderOnly > 0)
+            window->HiddenFramesForRenderOnly--;
+
+        // Hide new windows for one frame until they calculate their size
+        if (window_just_created && (!window_size_x_set_by_api || !window_size_y_set_by_api))
+            window->HiddenFramesCannotSkipItems = 1;
+
+        // Hide popup/tooltip window when re-opening while we measure size (because we recycle the windows)
+        // We reset Size/ContentSize for reappearing popups/tooltips early in this function, so further code won't be tempted to use the old size.
+        if (window_just_activated_by_user && (flags & (ImGuiWindowFlags_Popup | ImGuiWindowFlags_Tooltip)) != 0)
+        {
+            window->HiddenFramesCannotSkipItems = 1;
+            if (flags & ImGuiWindowFlags_AlwaysAutoResize)
+            {
+                if (!window_size_x_set_by_api)
+                    window->Size.x = window->SizeFull.x = 0.f;
+                if (!window_size_y_set_by_api)
+                    window->Size.y = window->SizeFull.y = 0.f;
+                window->ContentSize = window->ContentSizeIdeal = ImVec2(0.f, 0.f);
+            }
+        }
+
+        // SELECT VIEWPORT
+        // FIXME-VIEWPORT: In the docking/viewport branch, this is the point where we select the current viewport (which may affect the style)
+
+        ImGuiViewportP* viewport = (ImGuiViewportP*)(void*)GetMainViewport();
+        SetWindowViewport(window, viewport);
+        SetCurrentWindow(window);
+
+        // LOCK BORDER SIZE AND PADDING FOR THE FRAME (so that altering them doesn't cause inconsistencies)
+
+        if (flags & ImGuiWindowFlags_ChildWindow)
+            window->WindowBorderSize = style.ChildBorderSize;
+        else
+            window->WindowBorderSize = ((flags & (ImGuiWindowFlags_Popup | ImGuiWindowFlags_Tooltip)) && !(flags & ImGuiWindowFlags_Modal)) ? style.PopupBorderSize : style.WindowBorderSize;
+        window->WindowPadding = style.WindowPadding;
+        if ((flags & ImGuiWindowFlags_ChildWindow) && !(flags & (ImGuiWindowFlags_AlwaysUseWindowPadding | ImGuiWindowFlags_Popup)) && window->WindowBorderSize == 0.0f)
+            window->WindowPadding = ImVec2(0.0f, (flags & ImGuiWindowFlags_MenuBar) ? style.WindowPadding.y : 0.0f);
+
+        // Lock menu offset so size calculation can use it as menu-bar windows need a minimum size.
+        window->DC.MenuBarOffset.x = ImMax(ImMax(window->WindowPadding.x, style.ItemSpacing.x), g.NextWindowData.MenuBarOffsetMinVal.x);
+        window->DC.MenuBarOffset.y = g.NextWindowData.MenuBarOffsetMinVal.y;
+
+        // Collapse window by double-clicking on title bar
+        // At this point we don't have a clipping rectangle setup yet, so we can use the title bar area for hit detection and drawing
+        if (!(flags & ImGuiWindowFlags_NoTitleBar) && !(flags & ImGuiWindowFlags_NoCollapse))
+        {
+            // We don't use a regular button+id to test for double-click on title bar (mostly due to legacy reason, could be fixed), so verify that we don't have items over the title bar.
+            ImRect title_bar_rect = window->TitleBarRect();
+            if (g.HoveredWindow == window && g.HoveredId == 0 && g.HoveredIdPreviousFrame == 0 && IsMouseHoveringRect(title_bar_rect.Min, title_bar_rect.Max) && g.IO.MouseClickedCount[0] == 2)
+                window->WantCollapseToggle = true;
+            if (window->WantCollapseToggle)
+            {
+                window->Collapsed = !window->Collapsed;
+                MarkIniSettingsDirty(window);
+            }
+        }
+        else
+        {
+            window->Collapsed = false;
+        }
+        window->WantCollapseToggle = false;
+
+        // SIZE
+
+        // Calculate auto-fit size, handle automatic resize
+        const ImVec2 size_auto_fit = CalcWindowAutoFitSize(window, window->ContentSizeIdeal);
+        bool use_current_size_for_scrollbar_x = window_just_created;
+        bool use_current_size_for_scrollbar_y = window_just_created;
+        if ((flags & ImGuiWindowFlags_AlwaysAutoResize) && !window->Collapsed)
+        {
+            // Using SetNextWindowSize() overrides ImGuiWindowFlags_AlwaysAutoResize, so it can be used on tooltips/popups, etc.
+            if (!window_size_x_set_by_api)
+            {
+                window->SizeFull.x = size_auto_fit.x;
+                use_current_size_for_scrollbar_x = true;
+            }
+            if (!window_size_y_set_by_api)
+            {
+                window->SizeFull.y = size_auto_fit.y;
+                use_current_size_for_scrollbar_y = true;
+            }
+        }
+        else if (window->AutoFitFramesX > 0 || window->AutoFitFramesY > 0)
+        {
+            // Auto-fit may only grow window during the first few frames
+            // We still process initial auto-fit on collapsed windows to get a window width, but otherwise don't honor ImGuiWindowFlags_AlwaysAutoResize when collapsed.
+            if (!window_size_x_set_by_api && window->AutoFitFramesX > 0)
+            {
+                window->SizeFull.x = window->AutoFitOnlyGrows ? ImMax(window->SizeFull.x, size_auto_fit.x) : size_auto_fit.x;
+                use_current_size_for_scrollbar_x = true;
+            }
+            if (!window_size_y_set_by_api && window->AutoFitFramesY > 0)
+            {
+                window->SizeFull.y = window->AutoFitOnlyGrows ? ImMax(window->SizeFull.y, size_auto_fit.y) : size_auto_fit.y;
+                use_current_size_for_scrollbar_y = true;
+            }
+            if (!window->Collapsed)
+                MarkIniSettingsDirty(window);
+        }
+
+        // Apply minimum/maximum window size constraints and final size
+        window->SizeFull = CalcWindowSizeAfterConstraint(window, window->SizeFull);
+        window->Size = window->Collapsed && !(flags & ImGuiWindowFlags_ChildWindow) ? window->TitleBarRect().GetSize() : window->SizeFull;
+
+        // Decoration size
+        const float decoration_up_height = window->TitleBarHeight() + window->MenuBarHeight();
+
+        // POSITION
+
+        // Popup latch its initial position, will position itself when it appears next frame
+        if (window_just_activated_by_user)
+        {
+            window->AutoPosLastDirection = ImGuiDir_None;
+            if ((flags & ImGuiWindowFlags_Popup) != 0 && !(flags & ImGuiWindowFlags_Modal) && !window_pos_set_by_api) // FIXME: BeginPopup() could use SetNextWindowPos()
+                window->Pos = g.BeginPopupStack.back().OpenPopupPos;
+        }
+
+        // Position child window
+        if (flags & ImGuiWindowFlags_ChildWindow)
+        {
+            IM_ASSERT(parent_window && parent_window->Active);
+            window->BeginOrderWithinParent = (short)parent_window->DC.ChildWindows.Size;
+            parent_window->DC.ChildWindows.push_back(window);
+            if (!(flags & ImGuiWindowFlags_Popup) && !window_pos_set_by_api && !window_is_child_tooltip)
+                window->Pos = parent_window->DC.CursorPos;
+        }
+
+        const bool window_pos_with_pivot = (window->SetWindowPosVal.x != FLT_MAX && window->HiddenFramesCannotSkipItems == 0);
+        if (window_pos_with_pivot)
+            SetWindowPos(window, window->SetWindowPosVal - window->Size * window->SetWindowPosPivot, 0); // Position given a pivot (e.g. for centering)
+        else if ((flags & ImGuiWindowFlags_ChildMenu) != 0)
+            window->Pos = FindBestWindowPosForPopup(window);
+        else if ((flags & ImGuiWindowFlags_Popup) != 0 && !window_pos_set_by_api && window_just_appearing_after_hidden_for_resize)
+            window->Pos = FindBestWindowPosForPopup(window);
+        else if ((flags & ImGuiWindowFlags_Tooltip) != 0 && !window_pos_set_by_api && !window_is_child_tooltip)
+            window->Pos = FindBestWindowPosForPopup(window);
+
+        // Calculate the range of allowed position for that window (to be movable and visible past safe area padding)
+        // When clamping to stay visible, we will enforce that window->Pos stays inside of visibility_rect.
+        ImRect viewport_rect(viewport->GetMainRect());
+        ImRect viewport_work_rect(viewport->GetWorkRect());
+        ImVec2 visibility_padding = ImMax(style.DisplayWindowPadding, style.DisplaySafeAreaPadding);
+        ImRect visibility_rect(viewport_work_rect.Min + visibility_padding, viewport_work_rect.Max - visibility_padding);
+
+        // Clamp position/size so window stays visible within its viewport or monitor
+        // Ignore zero-sized display explicitly to avoid losing positions if a window manager reports zero-sized window when initializing or minimizing.
+        if (!window_pos_set_by_api && !(flags & ImGuiWindowFlags_ChildWindow) && window->AutoFitFramesX <= 0 && window->AutoFitFramesY <= 0)
+            if (viewport_rect.GetWidth() > 0.0f && viewport_rect.GetHeight() > 0.0f)
+                ClampWindowRect(window, visibility_rect);
+        window->Pos = ImFloor(window->Pos);
+
+        // Lock window rounding for the frame (so that altering them doesn't cause inconsistencies)
+        // Large values tend to lead to variety of artifacts and are not recommended.
+        window->WindowRounding = (flags & ImGuiWindowFlags_ChildWindow) ? style.ChildRounding : ((flags & ImGuiWindowFlags_Popup) && !(flags & ImGuiWindowFlags_Modal)) ? style.PopupRounding : style.WindowRounding;
+
+        // For windows with title bar or menu bar, we clamp to FrameHeight(FontSize + FramePadding.y * 2.0f) to completely hide artifacts.
+        //if ((window->Flags & ImGuiWindowFlags_MenuBar) || !(window->Flags & ImGuiWindowFlags_NoTitleBar))
+        //    window->WindowRounding = ImMin(window->WindowRounding, g.FontSize + style.FramePadding.y * 2.0f);
+
+        // Apply window focus (new and reactivated windows are moved to front)
+        bool want_focus = false;
+        if (window_just_activated_by_user && !(flags & ImGuiWindowFlags_NoFocusOnAppearing))
+        {
+            if (flags & ImGuiWindowFlags_Popup)
+                want_focus = true;
+            else if ((flags & (ImGuiWindowFlags_ChildWindow | ImGuiWindowFlags_Tooltip)) == 0)
+                want_focus = true;
+
+            ImGuiWindow* modal = GetTopMostPopupModal();
+            if (modal != NULL && !IsWindowWithinBeginStackOf(window, modal))
+            {
+                // Avoid focusing a window that is created outside of active modal. This will prevent active modal from being closed.
+                // Since window is not focused it would reappear at the same display position like the last time it was visible.
+                // In case of completely new windows it would go to the top (over current modal), but input to such window would still be blocked by modal.
+                // Position window behind a modal that is not a begin-parent of this window.
+                want_focus = false;
+                if (window == window->RootWindow)
+                {
+                    ImGuiWindow* blocking_modal = FindBlockingModal(window);
+                    IM_ASSERT(blocking_modal != NULL);
+                    BringWindowToDisplayBehind(window, blocking_modal);
+                }
+            }
+        }
+
+        // [Test Engine] Register whole window in the item system
+#ifdef IMGUI_ENABLE_TEST_ENGINE
+        if (g.TestEngineHookItems)
+        {
+            IM_ASSERT(window->IDStack.Size == 1);
+            window->IDStack.Size = 0;
+            IMGUI_TEST_ENGINE_ITEM_ADD(window->Rect(), window->ID);
+            IMGUI_TEST_ENGINE_ITEM_INFO(window->ID, window->Name, (g.HoveredWindow == window) ? ImGuiItemStatusFlags_HoveredRect : 0);
+            window->IDStack.Size = 1;
+        }
+#endif
+
+        // Handle manual resize: Resize Grips, Borders, Gamepad
+        int border_held = -1;
+        ImU32 resize_grip_col[4] = {};
+        const int resize_grip_count = g.IO.ConfigWindowsResizeFromEdges ? 2 : 1; // Allow resize from lower-left if we have the mouse cursor feedback for it.
+        const float resize_grip_draw_size = IM_FLOOR(ImMax(g.FontSize * 1.10f, window->WindowRounding + 1.0f + g.FontSize * 0.2f));
+        if (!window->Collapsed)
+            if (UpdateWindowManualResize(window, size_auto_fit, &border_held, resize_grip_count, &resize_grip_col[0], visibility_rect))
+                use_current_size_for_scrollbar_x = use_current_size_for_scrollbar_y = true;
+        window->ResizeBorderHeld = (signed char)border_held;
+
+        // SCROLLBAR VISIBILITY
+
+        // Update scrollbar visibility (based on the Size that was effective during last frame or the auto-resized Size).
+        if (!window->Collapsed)
+        {
+            // When reading the current size we need to read it after size constraints have been applied.
+            // When we use InnerRect here we are intentionally reading last frame size, same for ScrollbarSizes values before we set them again.
+            ImVec2 avail_size_from_current_frame = ImVec2(window->SizeFull.x, window->SizeFull.y - decoration_up_height);
+            ImVec2 avail_size_from_last_frame = window->InnerRect.GetSize() + window->ScrollbarSizes;
+            ImVec2 needed_size_from_last_frame = window_just_created ? ImVec2(0, 0) : window->ContentSize + window->WindowPadding * 2.0f;
+            float size_x_for_scrollbars = use_current_size_for_scrollbar_x ? avail_size_from_current_frame.x : avail_size_from_last_frame.x;
+            float size_y_for_scrollbars = use_current_size_for_scrollbar_y ? avail_size_from_current_frame.y : avail_size_from_last_frame.y;
+            //bool scrollbar_y_from_last_frame = window->ScrollbarY; // FIXME: May want to use that in the ScrollbarX expression? How many pros vs cons?
+            window->ScrollbarY = (flags & ImGuiWindowFlags_AlwaysVerticalScrollbar) || ((needed_size_from_last_frame.y > size_y_for_scrollbars) && !(flags & ImGuiWindowFlags_NoScrollbar));
+            window->ScrollbarX = (flags & ImGuiWindowFlags_AlwaysHorizontalScrollbar) || ((needed_size_from_last_frame.x > size_x_for_scrollbars - (window->ScrollbarY ? style.ScrollbarSize : 0.0f)) && !(flags & ImGuiWindowFlags_NoScrollbar) && (flags & ImGuiWindowFlags_HorizontalScrollbar));
+            if (window->ScrollbarX && !window->ScrollbarY)
+                window->ScrollbarY = (needed_size_from_last_frame.y > size_y_for_scrollbars) && !(flags & ImGuiWindowFlags_NoScrollbar);
+            window->ScrollbarSizes = ImVec2(window->ScrollbarY ? style.ScrollbarSize : 0.0f, window->ScrollbarX ? style.ScrollbarSize : 0.0f);
+        }
+
+        // UPDATE RECTANGLES (1- THOSE NOT AFFECTED BY SCROLLING)
+        // Update various regions. Variables they depends on should be set above in this function.
+        // We set this up after processing the resize grip so that our rectangles doesn't lag by a frame.
+
+        // Outer rectangle
+        // Not affected by window border size. Used by:
+        // - FindHoveredWindow() (w/ extra padding when border resize is enabled)
+        // - Begin() initial clipping rect for drawing window background and borders.
+        // - Begin() clipping whole child
+        const ImRect host_rect = ((flags & ImGuiWindowFlags_ChildWindow) && !(flags & ImGuiWindowFlags_Popup) && !window_is_child_tooltip) ? parent_window->ClipRect : viewport_rect;
+        const ImRect outer_rect = window->Rect();
+        const ImRect title_bar_rect = window->TitleBarRect();
+        window->OuterRectClipped = outer_rect;
+        window->OuterRectClipped.ClipWith(host_rect);
+
+        // Inner rectangle
+        // Not affected by window border size. Used by:
+        // - InnerClipRect
+        // - ScrollToRectEx()
+        // - NavUpdatePageUpPageDown()
+        // - Scrollbar()
+        window->InnerRect.Min.x = window->Pos.x;
+        window->InnerRect.Min.y = window->Pos.y + decoration_up_height;
+        window->InnerRect.Max.x = window->Pos.x + window->Size.x - window->ScrollbarSizes.x;
+        window->InnerRect.Max.y = window->Pos.y + window->Size.y - window->ScrollbarSizes.y;
+
+        // Inner clipping rectangle.
+        // Will extend a little bit outside the normal work region.
+        // This is to allow e.g. Selectable or CollapsingHeader or some separators to cover that space.
+        // Force round operator last to ensure that e.g. (int)(max.x-min.x) in user's render code produce correct result.
+        // Note that if our window is collapsed we will end up with an inverted (~null) clipping rectangle which is the correct behavior.
+        // Affected by window/frame border size. Used by:
+        // - Begin() initial clip rect
+        float top_border_size = (((flags & ImGuiWindowFlags_MenuBar) || !(flags & ImGuiWindowFlags_NoTitleBar)) ? style.FrameBorderSize : window->WindowBorderSize);
+        window->InnerClipRect.Min.x = ImFloor(0.5f + window->InnerRect.Min.x + ImMax(ImFloor(window->WindowPadding.x * 0.5f), window->WindowBorderSize));
+        window->InnerClipRect.Min.y = ImFloor(0.5f + window->InnerRect.Min.y + top_border_size);
+        window->InnerClipRect.Max.x = ImFloor(0.5f + window->InnerRect.Max.x - ImMax(ImFloor(window->WindowPadding.x * 0.5f), window->WindowBorderSize));
+        window->InnerClipRect.Max.y = ImFloor(0.5f + window->InnerRect.Max.y - window->WindowBorderSize);
+        window->InnerClipRect.ClipWithFull(host_rect);
+
+        // Default item width. Make it proportional to window size if window manually resizes
+        if (window->Size.x > 0.0f && !(flags & ImGuiWindowFlags_Tooltip) && !(flags & ImGuiWindowFlags_AlwaysAutoResize))
+            window->ItemWidthDefault = ImFloor(window->Size.x * 0.65f);
+        else
+            window->ItemWidthDefault = ImFloor(g.FontSize * 16.0f);
+
+        // SCROLLING
+
+        // Lock down maximum scrolling
+        // The value of ScrollMax are ahead from ScrollbarX/ScrollbarY which is intentionally using InnerRect from previous rect in order to accommodate
+        // for right/bottom aligned items without creating a scrollbar.
+        window->ScrollMax.x = ImMax(0.0f, window->ContentSize.x + window->WindowPadding.x * 2.0f - window->InnerRect.GetWidth());
+        window->ScrollMax.y = ImMax(0.0f, window->ContentSize.y + window->WindowPadding.y * 2.0f - window->InnerRect.GetHeight());
+
+        // Apply scrolling
+        window->Scroll = CalcNextScrollFromScrollTargetAndClamp(window);
+        window->ScrollTarget = ImVec2(FLT_MAX, FLT_MAX);
+
+        // DRAWING
+
+        // Setup draw list and outer clipping rectangle
+        IM_ASSERT(window->DrawList->CmdBuffer.Size == 1 && window->DrawList->CmdBuffer[0].ElemCount == 0);
+        window->DrawList->PushTextureID(g.Font->ContainerAtlas->TexID);
+        PushClipRect(host_rect.Min, host_rect.Max, false);
+
+        // Child windows can render their decoration (bg color, border, scrollbars, etc.) within their parent to save a draw call (since 1.71)
+        // When using overlapping child windows, this will break the assumption that child z-order is mapped to submission order.
+        // FIXME: User code may rely on explicit sorting of overlapping child window and would need to disable this somehow. Please get in contact if you are affected (github #4493)
+        {
+            bool render_decorations_in_parent = false;
+            if ((flags & ImGuiWindowFlags_ChildWindow) && !(flags & ImGuiWindowFlags_Popup) && !window_is_child_tooltip)
+            {
+                // - We test overlap with the previous child window only (testing all would end up being O(log N) not a good investment here)
+                // - We disable this when the parent window has zero vertices, which is a common pattern leading to laying out multiple overlapping childs
+                ImGuiWindow* previous_child = parent_window->DC.ChildWindows.Size >= 2 ? parent_window->DC.ChildWindows[parent_window->DC.ChildWindows.Size - 2] : NULL;
+                bool previous_child_overlapping = previous_child ? previous_child->Rect().Overlaps(window->Rect()) : false;
+                bool parent_is_empty = parent_window->DrawList->VtxBuffer.Size > 0;
+                if (window->DrawList->CmdBuffer.back().ElemCount == 0 && parent_is_empty && !previous_child_overlapping)
+                    render_decorations_in_parent = true;
+            }
+            if (render_decorations_in_parent)
+                window->DrawList = parent_window->DrawList;
+
+            // Handle title bar, scrollbar, resize grips and resize borders
+            const ImGuiWindow* window_to_highlight = g.NavWindowingTarget ? g.NavWindowingTarget : g.NavWindow;
+            const bool title_bar_is_highlight = want_focus || (window_to_highlight && window->RootWindowForTitleBarHighlight == window_to_highlight->RootWindowForTitleBarHighlight);
+            RenderWindowDecorations(window, title_bar_rect, title_bar_is_highlight, resize_grip_count, resize_grip_col, resize_grip_draw_size);
+
+            if (render_decorations_in_parent)
+                window->DrawList = &window->DrawListInst;
+        }
+
+        // UPDATE RECTANGLES (2- THOSE AFFECTED BY SCROLLING)
+
+        // Work rectangle.
+        // Affected by window padding and border size. Used by:
+        // - Columns() for right-most edge
+        // - TreeNode(), CollapsingHeader() for right-most edge
+        // - BeginTabBar() for right-most edge
+        const bool allow_scrollbar_x = !(flags & ImGuiWindowFlags_NoScrollbar) && (flags & ImGuiWindowFlags_HorizontalScrollbar);
+        const bool allow_scrollbar_y = !(flags & ImGuiWindowFlags_NoScrollbar);
+        const float work_rect_size_x = (window->ContentSizeExplicit.x != 0.0f ? window->ContentSizeExplicit.x : ImMax(allow_scrollbar_x ? window->ContentSize.x : 0.0f, window->Size.x - window->WindowPadding.x * 2.0f - window->ScrollbarSizes.x));
+        const float work_rect_size_y = (window->ContentSizeExplicit.y != 0.0f ? window->ContentSizeExplicit.y : ImMax(allow_scrollbar_y ? window->ContentSize.y : 0.0f, window->Size.y - window->WindowPadding.y * 2.0f - decoration_up_height - window->ScrollbarSizes.y));
+        window->WorkRect.Min.x = ImFloor(window->InnerRect.Min.x - window->Scroll.x + ImMax(window->WindowPadding.x, window->WindowBorderSize));
+        window->WorkRect.Min.y = ImFloor(window->InnerRect.Min.y - window->Scroll.y + ImMax(window->WindowPadding.y, window->WindowBorderSize));
+        window->WorkRect.Max.x = window->WorkRect.Min.x + work_rect_size_x;
+        window->WorkRect.Max.y = window->WorkRect.Min.y + work_rect_size_y;
+        window->ParentWorkRect = window->WorkRect;
+
+        // [LEGACY] Content Region
+        // FIXME-OBSOLETE: window->ContentRegionRect.Max is currently very misleading / partly faulty, but some BeginChild() patterns relies on it.
+        // Used by:
+        // - Mouse wheel scrolling + many other things
+        window->ContentRegionRect.Min.x = window->Pos.x - window->Scroll.x + window->WindowPadding.x;
+        window->ContentRegionRect.Min.y = window->Pos.y - window->Scroll.y + window->WindowPadding.y + decoration_up_height;
+        window->ContentRegionRect.Max.x = window->ContentRegionRect.Min.x + (window->ContentSizeExplicit.x != 0.0f ? window->ContentSizeExplicit.x : (window->Size.x - window->WindowPadding.x * 2.0f - window->ScrollbarSizes.x));
+        window->ContentRegionRect.Max.y = window->ContentRegionRect.Min.y + (window->ContentSizeExplicit.y != 0.0f ? window->ContentSizeExplicit.y : (window->Size.y - window->WindowPadding.y * 2.0f - decoration_up_height - window->ScrollbarSizes.y));
+
+        // Setup drawing context
+        // (NB: That term "drawing context / DC" lost its meaning a long time ago. Initially was meant to hold transient data only. Nowadays difference between window-> and window->DC-> is dubious.)
+        window->DC.Indent.x = 0.0f + window->WindowPadding.x - window->Scroll.x;
+        window->DC.GroupOffset.x = 0.0f;
+        window->DC.ColumnsOffset.x = 0.0f;
+
+        // Record the loss of precision of CursorStartPos which can happen due to really large scrolling amount.
+        // This is used by clipper to compensate and fix the most common use case of large scroll area. Easy and cheap, next best thing compared to switching everything to double or ImU64.
+        double start_pos_highp_x = (double)window->Pos.x + window->WindowPadding.x - (double)window->Scroll.x + window->DC.ColumnsOffset.x;
+        double start_pos_highp_y = (double)window->Pos.y + window->WindowPadding.y - (double)window->Scroll.y + decoration_up_height;
+        window->DC.CursorStartPos  = ImVec2((float)start_pos_highp_x, (float)start_pos_highp_y);
+        window->DC.CursorStartPosLossyness = ImVec2((float)(start_pos_highp_x - window->DC.CursorStartPos.x), (float)(start_pos_highp_y - window->DC.CursorStartPos.y));
+        window->DC.CursorPos = window->DC.CursorStartPos;
+        window->DC.CursorPosPrevLine = window->DC.CursorPos;
+        window->DC.CursorMaxPos = window->DC.CursorStartPos;
+        window->DC.IdealMaxPos = window->DC.CursorStartPos;
+        window->DC.CurrLineSize = window->DC.PrevLineSize = ImVec2(0.0f, 0.0f);
+        window->DC.CurrLineTextBaseOffset = window->DC.PrevLineTextBaseOffset = 0.0f;
+        window->DC.IsSameLine = false;
+
+        window->DC.NavLayerCurrent = ImGuiNavLayer_Main;
+        window->DC.NavLayersActiveMask = window->DC.NavLayersActiveMaskNext;
+        window->DC.NavLayersActiveMaskNext = 0x00;
+        window->DC.NavHideHighlightOneFrame = false;
+        window->DC.NavHasScroll = (window->ScrollMax.y > 0.0f);
+
+        window->DC.MenuBarAppending = false;
+        window->DC.MenuColumns.Update(style.ItemSpacing.x, window_just_activated_by_user);
+        window->DC.TreeDepth = 0;
+        window->DC.TreeJumpToParentOnPopMask = 0x00;
+        window->DC.ChildWindows.resize(0);
+        window->DC.StateStorage = &window->StateStorage;
+        window->DC.CurrentColumns = NULL;
+        window->DC.LayoutType = ImGuiLayoutType_Vertical;
+        window->DC.ParentLayoutType = parent_window ? parent_window->DC.LayoutType : ImGuiLayoutType_Vertical;
+
+        window->DC.ItemWidth = window->ItemWidthDefault;
+        window->DC.TextWrapPos = -1.0f; // disabled
+        window->DC.ItemWidthStack.resize(0);
+        window->DC.TextWrapPosStack.resize(0);
+
+        if (window->AutoFitFramesX > 0)
+            window->AutoFitFramesX--;
+        if (window->AutoFitFramesY > 0)
+            window->AutoFitFramesY--;
+
+        // Apply focus (we need to call FocusWindow() AFTER setting DC.CursorStartPos so our initial navigation reference rectangle can start around there)
+        if (want_focus)
+        {
+            FocusWindow(window);
+            NavInitWindow(window, false); // <-- this is in the way for us to be able to defer and sort reappearing FocusWindow() calls
+        }
+
+        // Title bar
+        if (!(flags & ImGuiWindowFlags_NoTitleBar))
+            RenderWindowTitleBarContents(window, ImRect(title_bar_rect.Min.x + window->WindowBorderSize, title_bar_rect.Min.y, title_bar_rect.Max.x - window->WindowBorderSize, title_bar_rect.Max.y), name, p_open);
+
+        // Clear hit test shape every frame
+        window->HitTestHoleSize.x = window->HitTestHoleSize.y = 0;
+
+        // Pressing CTRL+C while holding on a window copy its content to the clipboard
+        // This works but 1. doesn't handle multiple Begin/End pairs, 2. recursing into another Begin/End pair - so we need to work that out and add better logging scope.
+        // Maybe we can support CTRL+C on every element?
+        /*
+        //if (g.NavWindow == window && g.ActiveId == 0)
+        if (g.ActiveId == window->MoveId)
+            if (g.IO.KeyCtrl && IsKeyPressedMap(ImGuiKey_C))
+                LogToClipboard();
+        */
+
+        // We fill last item data based on Title Bar/Tab, in order for IsItemHovered() and IsItemActive() to be usable after Begin().
+        // This is useful to allow creating context menus on title bar only, etc.
+        SetLastItemData(window->MoveId, g.CurrentItemFlags, IsMouseHoveringRect(title_bar_rect.Min, title_bar_rect.Max, false) ? ImGuiItemStatusFlags_HoveredRect : 0, title_bar_rect);
+
+        // [Test Engine] Register title bar / tab
+        if (!(window->Flags & ImGuiWindowFlags_NoTitleBar))
+            IMGUI_TEST_ENGINE_ITEM_ADD(g.LastItemData.Rect, g.LastItemData.ID);
+    }
+    else
+    {
+        // Append
+        SetCurrentWindow(window);
+    }
+
+    // Pull/inherit current state
+    window->DC.NavFocusScopeIdCurrent = (flags & ImGuiWindowFlags_ChildWindow) ? parent_window->DC.NavFocusScopeIdCurrent : window->GetID("#FOCUSSCOPE"); // Inherit from parent only // -V595
+
+    PushClipRect(window->InnerClipRect.Min, window->InnerClipRect.Max, true);
+
+    // Clear 'accessed' flag last thing (After PushClipRect which will set the flag. We want the flag to stay false when the default "Debug" window is unused)
+    window->WriteAccessed = false;
+    window->BeginCount++;
+    g.NextWindowData.ClearFlags();
+
+    // Update visibility
+    if (first_begin_of_the_frame)
+    {
+        if (flags & ImGuiWindowFlags_ChildWindow)
+        {
+            // Child window can be out of sight and have "negative" clip windows.
+            // Mark them as collapsed so commands are skipped earlier (we can't manually collapse them because they have no title bar).
+            IM_ASSERT((flags & ImGuiWindowFlags_NoTitleBar) != 0);
+            if (!(flags & ImGuiWindowFlags_AlwaysAutoResize) && window->AutoFitFramesX <= 0 && window->AutoFitFramesY <= 0) // FIXME: Doesn't make sense for ChildWindow??
+            {
+                const bool nav_request = (flags & ImGuiWindowFlags_NavFlattened) && (g.NavAnyRequest && g.NavWindow && g.NavWindow->RootWindowForNav == window->RootWindowForNav);
+                if (!g.LogEnabled && !nav_request)
+                    if (window->OuterRectClipped.Min.x >= window->OuterRectClipped.Max.x || window->OuterRectClipped.Min.y >= window->OuterRectClipped.Max.y)
+                        window->HiddenFramesCanSkipItems = 1;
+            }
+
+            // Hide along with parent or if parent is collapsed
+            if (parent_window && (parent_window->Collapsed || parent_window->HiddenFramesCanSkipItems > 0))
+                window->HiddenFramesCanSkipItems = 1;
+            if (parent_window && (parent_window->Collapsed || parent_window->HiddenFramesCannotSkipItems > 0))
+                window->HiddenFramesCannotSkipItems = 1;
+        }
+
+        // Don't render if style alpha is 0.0 at the time of Begin(). This is arbitrary and inconsistent but has been there for a long while (may remove at some point)
+        if (style.Alpha <= 0.0f)
+            window->HiddenFramesCanSkipItems = 1;
+
+        // Update the Hidden flag
+        bool hidden_regular = (window->HiddenFramesCanSkipItems > 0) || (window->HiddenFramesCannotSkipItems > 0);
+        window->Hidden = hidden_regular || (window->HiddenFramesForRenderOnly > 0);
+
+        // Disable inputs for requested number of frames
+        if (window->DisableInputsFrames > 0)
+        {
+            window->DisableInputsFrames--;
+            window->Flags |= ImGuiWindowFlags_NoInputs;
+        }
+
+        // Update the SkipItems flag, used to early out of all items functions (no layout required)
+        bool skip_items = false;
+        if (window->Collapsed || !window->Active || hidden_regular)
+            if (window->AutoFitFramesX <= 0 && window->AutoFitFramesY <= 0 && window->HiddenFramesCannotSkipItems <= 0)
+                skip_items = true;
+        window->SkipItems = skip_items;
+    }
+
+    return !window->SkipItems;
+}
+
+void ImGui::End()
+{
+    ImGuiContext& g = *GImGui;
+    ImGuiWindow* window = g.CurrentWindow;
+
+    // Error checking: verify that user hasn't called End() too many times!
+    if (g.CurrentWindowStack.Size <= 1 && g.WithinFrameScopeWithImplicitWindow)
+    {
+        IM_ASSERT_USER_ERROR(g.CurrentWindowStack.Size > 1, "Calling End() too many times!");
+        return;
+    }
+    IM_ASSERT(g.CurrentWindowStack.Size > 0);
+
+    // Error checking: verify that user doesn't directly call End() on a child window.
+    if (window->Flags & ImGuiWindowFlags_ChildWindow)
+        IM_ASSERT_USER_ERROR(g.WithinEndChild, "Must call EndChild() and not End()!");
+
+    // Close anything that is open
+    if (window->DC.CurrentColumns)
+        EndColumns();
+    PopClipRect();   // Inner window clip rectangle
+
+    // Stop logging
+    if (!(window->Flags & ImGuiWindowFlags_ChildWindow))    // FIXME: add more options for scope of logging
+        LogFinish();
+
+    // Pop from window stack
+    g.LastItemData = g.CurrentWindowStack.back().ParentLastItemDataBackup;
+    if (window->Flags & ImGuiWindowFlags_ChildMenu)
+        g.BeginMenuCount--;
+    if (window->Flags & ImGuiWindowFlags_Popup)
+        g.BeginPopupStack.pop_back();
+    g.CurrentWindowStack.back().StackSizesOnBegin.CompareWithCurrentState();
+    g.CurrentWindowStack.pop_back();
+    SetCurrentWindow(g.CurrentWindowStack.Size == 0 ? NULL : g.CurrentWindowStack.back().Window);
+}
+
+void ImGui::BringWindowToFocusFront(ImGuiWindow* window)
+{
+    ImGuiContext& g = *GImGui;
+    IM_ASSERT(window == window->RootWindow);
+
+    const int cur_order = window->FocusOrder;
+    IM_ASSERT(g.WindowsFocusOrder[cur_order] == window);
+    if (g.WindowsFocusOrder.back() == window)
+        return;
+
+    const int new_order = g.WindowsFocusOrder.Size - 1;
+    for (int n = cur_order; n < new_order; n++)
+    {
+        g.WindowsFocusOrder[n] = g.WindowsFocusOrder[n + 1];
+        g.WindowsFocusOrder[n]->FocusOrder--;
+        IM_ASSERT(g.WindowsFocusOrder[n]->FocusOrder == n);
+    }
+    g.WindowsFocusOrder[new_order] = window;
+    window->FocusOrder = (short)new_order;
+}
+
+void ImGui::BringWindowToDisplayFront(ImGuiWindow* window)
+{
+    ImGuiContext& g = *GImGui;
+    ImGuiWindow* current_front_window = g.Windows.back();
+    if (current_front_window == window || current_front_window->RootWindow == window) // Cheap early out (could be better)
+        return;
+    for (int i = g.Windows.Size - 2; i >= 0; i--) // We can ignore the top-most window
+        if (g.Windows[i] == window)
+        {
+            memmove(&g.Windows[i], &g.Windows[i + 1], (size_t)(g.Windows.Size - i - 1) * sizeof(ImGuiWindow*));
+            g.Windows[g.Windows.Size - 1] = window;
+            break;
+        }
+}
+
+void ImGui::BringWindowToDisplayBack(ImGuiWindow* window)
+{
+    ImGuiContext& g = *GImGui;
+    if (g.Windows[0] == window)
+        return;
+    for (int i = 0; i < g.Windows.Size; i++)
+        if (g.Windows[i] == window)
+        {
+            memmove(&g.Windows[1], &g.Windows[0], (size_t)i * sizeof(ImGuiWindow*));
+            g.Windows[0] = window;
+            break;
+        }
+}
+
+void ImGui::BringWindowToDisplayBehind(ImGuiWindow* window, ImGuiWindow* behind_window)
+{
+    IM_ASSERT(window != NULL && behind_window != NULL);
+    ImGuiContext& g = *GImGui;
+    window = window->RootWindow;
+    behind_window = behind_window->RootWindow;
+    int pos_wnd = FindWindowDisplayIndex(window);
+    int pos_beh = FindWindowDisplayIndex(behind_window);
+    if (pos_wnd < pos_beh)
+    {
+        size_t copy_bytes = (pos_beh - pos_wnd - 1) * sizeof(ImGuiWindow*);
+        memmove(&g.Windows.Data[pos_wnd], &g.Windows.Data[pos_wnd + 1], copy_bytes);
+        g.Windows[pos_beh - 1] = window;
+    }
+    else
+    {
+        size_t copy_bytes = (pos_wnd - pos_beh) * sizeof(ImGuiWindow*);
+        memmove(&g.Windows.Data[pos_beh + 1], &g.Windows.Data[pos_beh], copy_bytes);
+        g.Windows[pos_beh] = window;
+    }
+}
+
+int ImGui::FindWindowDisplayIndex(ImGuiWindow* window)
+{
+    ImGuiContext& g = *GImGui;
+    return g.Windows.index_from_ptr(g.Windows.find(window));
+}
+
+// Moving window to front of display and set focus (which happens to be back of our sorted list)
+void ImGui::FocusWindow(ImGuiWindow* window)
+{
+    ImGuiContext& g = *GImGui;
+
+    if (g.NavWindow != window)
+    {
+        SetNavWindow(window);
+        if (window && g.NavDisableMouseHover)
+            g.NavMousePosDirty = true;
+        g.NavId = window ? window->NavLastIds[0] : 0; // Restore NavId
+        g.NavLayer = ImGuiNavLayer_Main;
+        g.NavFocusScopeId = 0;
+        g.NavIdIsAlive = false;
+    }
+
+    // Close popups if any
+    ClosePopupsOverWindow(window, false);
+
+    // Move the root window to the top of the pile
+    IM_ASSERT(window == NULL || window->RootWindow != NULL);
+    ImGuiWindow* focus_front_window = window ? window->RootWindow : NULL; // NB: In docking branch this is window->RootWindowDockStop
+    ImGuiWindow* display_front_window = window ? window->RootWindow : NULL;
+
+    // Steal active widgets. Some of the cases it triggers includes:
+    // - Focus a window while an InputText in another window is active, if focus happens before the old InputText can run.
+    // - When using Nav to activate menu items (due to timing of activating on press->new window appears->losing ActiveId)
+    if (g.ActiveId != 0 && g.ActiveIdWindow && g.ActiveIdWindow->RootWindow != focus_front_window)
+        if (!g.ActiveIdNoClearOnFocusLoss)
+            ClearActiveID();
+
+    // Passing NULL allow to disable keyboard focus
+    if (!window)
+        return;
+
+    // Bring to front
+    BringWindowToFocusFront(focus_front_window);
+    if (((window->Flags | display_front_window->Flags) & ImGuiWindowFlags_NoBringToFrontOnFocus) == 0)
+        BringWindowToDisplayFront(display_front_window);
+}
+
+void ImGui::FocusTopMostWindowUnderOne(ImGuiWindow* under_this_window, ImGuiWindow* ignore_window)
+{
+    ImGuiContext& g = *GImGui;
+    int start_idx = g.WindowsFocusOrder.Size - 1;
+    if (under_this_window != NULL)
+    {
+        // Aim at root window behind us, if we are in a child window that's our own root (see #4640)
+        int offset = -1;
+        while (under_this_window->Flags & ImGuiWindowFlags_ChildWindow)
+        {
+            under_this_window = under_this_window->ParentWindow;
+            offset = 0;
+        }
+        start_idx = FindWindowFocusIndex(under_this_window) + offset;
+    }
+    for (int i = start_idx; i >= 0; i--)
+    {
+        // We may later decide to test for different NoXXXInputs based on the active navigation input (mouse vs nav) but that may feel more confusing to the user.
+        ImGuiWindow* window = g.WindowsFocusOrder[i];
+        IM_ASSERT(window == window->RootWindow);
+        if (window != ignore_window && window->WasActive)
+            if ((window->Flags & (ImGuiWindowFlags_NoMouseInputs | ImGuiWindowFlags_NoNavInputs)) != (ImGuiWindowFlags_NoMouseInputs | ImGuiWindowFlags_NoNavInputs))
+            {
+                ImGuiWindow* focus_window = NavRestoreLastChildNavWindow(window);
+                FocusWindow(focus_window);
+                return;
+            }
+    }
+    FocusWindow(NULL);
+}
+
+// Important: this alone doesn't alter current ImDrawList state. This is called by PushFont/PopFont only.
+void ImGui::SetCurrentFont(ImFont* font)
+{
+    ImGuiContext& g = *GImGui;
+    IM_ASSERT(font && font->IsLoaded());    // Font Atlas not created. Did you call io.Fonts->GetTexDataAsRGBA32 / GetTexDataAsAlpha8 ?
+    IM_ASSERT(font->Scale > 0.0f);
+    g.Font = font;
+    g.FontBaseSize = ImMax(1.0f, g.IO.FontGlobalScale * g.Font->FontSize * g.Font->Scale);
+    g.FontSize = g.CurrentWindow ? g.CurrentWindow->CalcFontSize() : 0.0f;
+
+    ImFontAtlas* atlas = g.Font->ContainerAtlas;
+    g.DrawListSharedData.TexUvWhitePixel = atlas->TexUvWhitePixel;
+    g.DrawListSharedData.TexUvLines = atlas->TexUvLines;
+    g.DrawListSharedData.Font = g.Font;
+    g.DrawListSharedData.FontSize = g.FontSize;
+}
+
+void ImGui::PushFont(ImFont* font)
+{
+    ImGuiContext& g = *GImGui;
+    if (!font)
+        font = GetDefaultFont();
+    SetCurrentFont(font);
+    g.FontStack.push_back(font);
+    g.CurrentWindow->DrawList->PushTextureID(font->ContainerAtlas->TexID);
+}
+
+void  ImGui::PopFont()
+{
+    ImGuiContext& g = *GImGui;
+    g.CurrentWindow->DrawList->PopTextureID();
+    g.FontStack.pop_back();
+    SetCurrentFont(g.FontStack.empty() ? GetDefaultFont() : g.FontStack.back());
+}
+
+void ImGui::PushItemFlag(ImGuiItemFlags option, bool enabled)
+{
+    ImGuiContext& g = *GImGui;
+    ImGuiItemFlags item_flags = g.CurrentItemFlags;
+    IM_ASSERT(item_flags == g.ItemFlagsStack.back());
+    if (enabled)
+        item_flags |= option;
+    else
+        item_flags &= ~option;
+    g.CurrentItemFlags = item_flags;
+    g.ItemFlagsStack.push_back(item_flags);
+}
+
+void ImGui::PopItemFlag()
+{
+    ImGuiContext& g = *GImGui;
+    IM_ASSERT(g.ItemFlagsStack.Size > 1); // Too many calls to PopItemFlag() - we always leave a 0 at the bottom of the stack.
+    g.ItemFlagsStack.pop_back();
+    g.CurrentItemFlags = g.ItemFlagsStack.back();
+}
+
+// BeginDisabled()/EndDisabled()
+// - Those can be nested but it cannot be used to enable an already disabled section (a single BeginDisabled(true) in the stack is enough to keep everything disabled)
+// - Visually this is currently altering alpha, but it is expected that in a future styling system this would work differently.
+// - Feedback welcome at https://github.com/ocornut/imgui/issues/211
+// - BeginDisabled(false) essentially does nothing useful but is provided to facilitate use of boolean expressions. If you can avoid calling BeginDisabled(False)/EndDisabled() best to avoid it.
+// - Optimized shortcuts instead of PushStyleVar() + PushItemFlag()
+void ImGui::BeginDisabled(bool disabled)
+{
+    ImGuiContext& g = *GImGui;
+    bool was_disabled = (g.CurrentItemFlags & ImGuiItemFlags_Disabled) != 0;
+    if (!was_disabled && disabled)
+    {
+        g.DisabledAlphaBackup = g.Style.Alpha;
+        g.Style.Alpha *= g.Style.DisabledAlpha; // PushStyleVar(ImGuiStyleVar_Alpha, g.Style.Alpha * g.Style.DisabledAlpha);
+    }
+    if (was_disabled || disabled)
+        g.CurrentItemFlags |= ImGuiItemFlags_Disabled;
+    g.ItemFlagsStack.push_back(g.CurrentItemFlags);
+    g.DisabledStackSize++;
+}
+
+void ImGui::EndDisabled()
+{
+    ImGuiContext& g = *GImGui;
+    IM_ASSERT(g.DisabledStackSize > 0);
+    g.DisabledStackSize--;
+    bool was_disabled = (g.CurrentItemFlags & ImGuiItemFlags_Disabled) != 0;
+    //PopItemFlag();
+    g.ItemFlagsStack.pop_back();
+    g.CurrentItemFlags = g.ItemFlagsStack.back();
+    if (was_disabled && (g.CurrentItemFlags & ImGuiItemFlags_Disabled) == 0)
+        g.Style.Alpha = g.DisabledAlphaBackup; //PopStyleVar();
+}
+
+// FIXME: Look into renaming this once we have settled the new Focus/Activation/TabStop system.
+void ImGui::PushAllowKeyboardFocus(bool allow_keyboard_focus)
+{
+    PushItemFlag(ImGuiItemFlags_NoTabStop, !allow_keyboard_focus);
+}
+
+void ImGui::PopAllowKeyboardFocus()
+{
+    PopItemFlag();
+}
+
+void ImGui::PushButtonRepeat(bool repeat)
+{
+    PushItemFlag(ImGuiItemFlags_ButtonRepeat, repeat);
+}
+
+void ImGui::PopButtonRepeat()
+{
+    PopItemFlag();
+}
+
+void ImGui::PushTextWrapPos(float wrap_pos_x)
+{
+    ImGuiWindow* window = GetCurrentWindow();
+    window->DC.TextWrapPosStack.push_back(window->DC.TextWrapPos);
+    window->DC.TextWrapPos = wrap_pos_x;
+}
+
+void ImGui::PopTextWrapPos()
+{
+    ImGuiWindow* window = GetCurrentWindow();
+    window->DC.TextWrapPos = window->DC.TextWrapPosStack.back();
+    window->DC.TextWrapPosStack.pop_back();
+}
+
+static ImGuiWindow* GetCombinedRootWindow(ImGuiWindow* window, bool popup_hierarchy)
+{
+    ImGuiWindow* last_window = NULL;
+    while (last_window != window)
+    {
+        last_window = window;
+        window = window->RootWindow;
+        if (popup_hierarchy)
+            window = window->RootWindowPopupTree;
+    }
+    return window;
+}
+
+bool ImGui::IsWindowChildOf(ImGuiWindow* window, ImGuiWindow* potential_parent, bool popup_hierarchy)
+{
+    ImGuiWindow* window_root = GetCombinedRootWindow(window, popup_hierarchy);
+    if (window_root == potential_parent)
+        return true;
+    while (window != NULL)
+    {
+        if (window == potential_parent)
+            return true;
+        if (window == window_root) // end of chain
+            return false;
+        window = window->ParentWindow;
+    }
+    return false;
+}
+
+bool ImGui::IsWindowWithinBeginStackOf(ImGuiWindow* window, ImGuiWindow* potential_parent)
+{
+    if (window->RootWindow == potential_parent)
+        return true;
+    while (window != NULL)
+    {
+        if (window == potential_parent)
+            return true;
+        window = window->ParentWindowInBeginStack;
+    }
+    return false;
+}
+
+bool ImGui::IsWindowAbove(ImGuiWindow* potential_above, ImGuiWindow* potential_below)
+{
+    ImGuiContext& g = *GImGui;
+
+    // It would be saner to ensure that display layer is always reflected in the g.Windows[] order, which would likely requires altering all manipulations of that array
+    const int display_layer_delta = GetWindowDisplayLayer(potential_above) - GetWindowDisplayLayer(potential_below);
+    if (display_layer_delta != 0)
+        return display_layer_delta > 0;
+
+    for (int i = g.Windows.Size - 1; i >= 0; i--)
+    {
+        ImGuiWindow* candidate_window = g.Windows[i];
+        if (candidate_window == potential_above)
+            return true;
+        if (candidate_window == potential_below)
+            return false;
+    }
+    return false;
+}
+
+bool ImGui::IsWindowHovered(ImGuiHoveredFlags flags)
+{
+    IM_ASSERT((flags & (ImGuiHoveredFlags_AllowWhenOverlapped | ImGuiHoveredFlags_AllowWhenDisabled)) == 0);   // Flags not supported by this function
+    ImGuiContext& g = *GImGui;
+    ImGuiWindow* ref_window = g.HoveredWindow;
+    ImGuiWindow* cur_window = g.CurrentWindow;
+    if (ref_window == NULL)
+        return false;
+
+    if ((flags & ImGuiHoveredFlags_AnyWindow) == 0)
+    {
+        IM_ASSERT(cur_window); // Not inside a Begin()/End()
+        const bool popup_hierarchy = (flags & ImGuiHoveredFlags_NoPopupHierarchy) == 0;
+        if (flags & ImGuiHoveredFlags_RootWindow)
+            cur_window = GetCombinedRootWindow(cur_window, popup_hierarchy);
+
+        bool result;
+        if (flags & ImGuiHoveredFlags_ChildWindows)
+            result = IsWindowChildOf(ref_window, cur_window, popup_hierarchy);
+        else
+            result = (ref_window == cur_window);
+        if (!result)
+            return false;
+    }
+
+    if (!IsWindowContentHoverable(ref_window, flags))
+        return false;
+    if (!(flags & ImGuiHoveredFlags_AllowWhenBlockedByActiveItem))
+        if (g.ActiveId != 0 && !g.ActiveIdAllowOverlap && g.ActiveId != ref_window->MoveId)
+            return false;
+    return true;
+}
+
+bool ImGui::IsWindowFocused(ImGuiFocusedFlags flags)
+{
+    ImGuiContext& g = *GImGui;
+    ImGuiWindow* ref_window = g.NavWindow;
+    ImGuiWindow* cur_window = g.CurrentWindow;
+
+    if (ref_window == NULL)
+        return false;
+    if (flags & ImGuiFocusedFlags_AnyWindow)
+        return true;
+
+    IM_ASSERT(cur_window); // Not inside a Begin()/End()
+    const bool popup_hierarchy = (flags & ImGuiFocusedFlags_NoPopupHierarchy) == 0;
+    if (flags & ImGuiHoveredFlags_RootWindow)
+        cur_window = GetCombinedRootWindow(cur_window, popup_hierarchy);
+
+    if (flags & ImGuiHoveredFlags_ChildWindows)
+        return IsWindowChildOf(ref_window, cur_window, popup_hierarchy);
+    else
+        return (ref_window == cur_window);
+}
+
+// Can we focus this window with CTRL+TAB (or PadMenu + PadFocusPrev/PadFocusNext)
+// Note that NoNavFocus makes the window not reachable with CTRL+TAB but it can still be focused with mouse or programmatically.
+// If you want a window to never be focused, you may use the e.g. NoInputs flag.
+bool ImGui::IsWindowNavFocusable(ImGuiWindow* window)
+{
+    return window->WasActive && window == window->RootWindow && !(window->Flags & ImGuiWindowFlags_NoNavFocus);
+}
+
+float ImGui::GetWindowWidth()
+{
+    ImGuiWindow* window = GImGui->CurrentWindow;
+    return window->Size.x;
+}
+
+float ImGui::GetWindowHeight()
+{
+    ImGuiWindow* window = GImGui->CurrentWindow;
+    return window->Size.y;
+}
+
+ImVec2 ImGui::GetWindowPos()
+{
+    ImGuiContext& g = *GImGui;
+    ImGuiWindow* window = g.CurrentWindow;
+    return window->Pos;
+}
+
+void ImGui::SetWindowPos(ImGuiWindow* window, const ImVec2& pos, ImGuiCond cond)
+{
+    // Test condition (NB: bit 0 is always true) and clear flags for next time
+    if (cond && (window->SetWindowPosAllowFlags & cond) == 0)
+        return;
+
+    IM_ASSERT(cond == 0 || ImIsPowerOfTwo(cond)); // Make sure the user doesn't attempt to combine multiple condition flags.
+    window->SetWindowPosAllowFlags &= ~(ImGuiCond_Once | ImGuiCond_FirstUseEver | ImGuiCond_Appearing);
+    window->SetWindowPosVal = ImVec2(FLT_MAX, FLT_MAX);
+
+    // Set
+    const ImVec2 old_pos = window->Pos;
+    window->Pos = ImFloor(pos);
+    ImVec2 offset = window->Pos - old_pos;
+    if (offset.x == 0.0f && offset.y == 0.0f)
+        return;
+    MarkIniSettingsDirty(window);
+    window->DC.CursorPos += offset;         // As we happen to move the window while it is being appended to (which is a bad idea - will smear) let's at least offset the cursor
+    window->DC.CursorMaxPos += offset;      // And more importantly we need to offset CursorMaxPos/CursorStartPos this so ContentSize calculation doesn't get affected.
+    window->DC.IdealMaxPos += offset;
+    window->DC.CursorStartPos += offset;
+}
+
+void ImGui::SetWindowPos(const ImVec2& pos, ImGuiCond cond)
+{
+    ImGuiWindow* window = GetCurrentWindowRead();
+    SetWindowPos(window, pos, cond);
+}
+
+void ImGui::SetWindowPos(const char* name, const ImVec2& pos, ImGuiCond cond)
+{
+    if (ImGuiWindow* window = FindWindowByName(name))
+        SetWindowPos(window, pos, cond);
+}
+
+ImVec2 ImGui::GetWindowSize()
+{
+    ImGuiWindow* window = GetCurrentWindowRead();
+    return window->Size;
+}
+
+void ImGui::SetWindowSize(ImGuiWindow* window, const ImVec2& size, ImGuiCond cond)
+{
+    // Test condition (NB: bit 0 is always true) and clear flags for next time
+    if (cond && (window->SetWindowSizeAllowFlags & cond) == 0)
+        return;
+
+    IM_ASSERT(cond == 0 || ImIsPowerOfTwo(cond)); // Make sure the user doesn't attempt to combine multiple condition flags.
+    window->SetWindowSizeAllowFlags &= ~(ImGuiCond_Once | ImGuiCond_FirstUseEver | ImGuiCond_Appearing);
+
+    // Set
+    ImVec2 old_size = window->SizeFull;
+    window->AutoFitFramesX = (size.x <= 0.0f) ? 2 : 0;
+    window->AutoFitFramesY = (size.y <= 0.0f) ? 2 : 0;
+    if (size.x <= 0.0f)
+        window->AutoFitOnlyGrows = false;
+    else
+        window->SizeFull.x = IM_FLOOR(size.x);
+    if (size.y <= 0.0f)
+        window->AutoFitOnlyGrows = false;
+    else
+        window->SizeFull.y = IM_FLOOR(size.y);
+    if (old_size.x != window->SizeFull.x || old_size.y != window->SizeFull.y)
+        MarkIniSettingsDirty(window);
+}
+
+void ImGui::SetWindowSize(const ImVec2& size, ImGuiCond cond)
+{
+    SetWindowSize(GImGui->CurrentWindow, size, cond);
+}
+
+void ImGui::SetWindowSize(const char* name, const ImVec2& size, ImGuiCond cond)
+{
+    if (ImGuiWindow* window = FindWindowByName(name))
+        SetWindowSize(window, size, cond);
+}
+
+void ImGui::SetWindowCollapsed(ImGuiWindow* window, bool collapsed, ImGuiCond cond)
+{
+    // Test condition (NB: bit 0 is always true) and clear flags for next time
+    if (cond && (window->SetWindowCollapsedAllowFlags & cond) == 0)
+        return;
+    window->SetWindowCollapsedAllowFlags &= ~(ImGuiCond_Once | ImGuiCond_FirstUseEver | ImGuiCond_Appearing);
+
+    // Set
+    window->Collapsed = collapsed;
+}
+
+void ImGui::SetWindowHitTestHole(ImGuiWindow* window, const ImVec2& pos, const ImVec2& size)
+{
+    IM_ASSERT(window->HitTestHoleSize.x == 0);     // We don't support multiple holes/hit test filters
+    window->HitTestHoleSize = ImVec2ih(size);
+    window->HitTestHoleOffset = ImVec2ih(pos - window->Pos);
+}
+
+void ImGui::SetWindowCollapsed(bool collapsed, ImGuiCond cond)
+{
+    SetWindowCollapsed(GImGui->CurrentWindow, collapsed, cond);
+}
+
+bool ImGui::IsWindowCollapsed()
+{
+    ImGuiWindow* window = GetCurrentWindowRead();
+    return window->Collapsed;
+}
+
+bool ImGui::IsWindowAppearing()
+{
+    ImGuiWindow* window = GetCurrentWindowRead();
+    return window->Appearing;
+}
+
+void ImGui::SetWindowCollapsed(const char* name, bool collapsed, ImGuiCond cond)
+{
+    if (ImGuiWindow* window = FindWindowByName(name))
+        SetWindowCollapsed(window, collapsed, cond);
+}
+
+void ImGui::SetWindowFocus()
+{
+    FocusWindow(GImGui->CurrentWindow);
+}
+
+void ImGui::SetWindowFocus(const char* name)
+{
+    if (name)
+    {
+        if (ImGuiWindow* window = FindWindowByName(name))
+            FocusWindow(window);
+    }
+    else
+    {
+        FocusWindow(NULL);
+    }
+}
+
+void ImGui::SetNextWindowPos(const ImVec2& pos, ImGuiCond cond, const ImVec2& pivot)
+{
+    ImGuiContext& g = *GImGui;
+    IM_ASSERT(cond == 0 || ImIsPowerOfTwo(cond)); // Make sure the user doesn't attempt to combine multiple condition flags.
+    g.NextWindowData.Flags |= ImGuiNextWindowDataFlags_HasPos;
+    g.NextWindowData.PosVal = pos;
+    g.NextWindowData.PosPivotVal = pivot;
+    g.NextWindowData.PosCond = cond ? cond : ImGuiCond_Always;
+}
+
+void ImGui::SetNextWindowSize(const ImVec2& size, ImGuiCond cond)
+{
+    ImGuiContext& g = *GImGui;
+    IM_ASSERT(cond == 0 || ImIsPowerOfTwo(cond)); // Make sure the user doesn't attempt to combine multiple condition flags.
+    g.NextWindowData.Flags |= ImGuiNextWindowDataFlags_HasSize;
+    g.NextWindowData.SizeVal = size;
+    g.NextWindowData.SizeCond = cond ? cond : ImGuiCond_Always;
+}
+
+void ImGui::SetNextWindowSizeConstraints(const ImVec2& size_min, const ImVec2& size_max, ImGuiSizeCallback custom_callback, void* custom_callback_user_data)
+{
+    ImGuiContext& g = *GImGui;
+    g.NextWindowData.Flags |= ImGuiNextWindowDataFlags_HasSizeConstraint;
+    g.NextWindowData.SizeConstraintRect = ImRect(size_min, size_max);
+    g.NextWindowData.SizeCallback = custom_callback;
+    g.NextWindowData.SizeCallbackUserData = custom_callback_user_data;
+}
+
+// Content size = inner scrollable rectangle, padded with WindowPadding.
+// SetNextWindowContentSize(ImVec2(100,100) + ImGuiWindowFlags_AlwaysAutoResize will always allow submitting a 100x100 item.
+void ImGui::SetNextWindowContentSize(const ImVec2& size)
+{
+    ImGuiContext& g = *GImGui;
+    g.NextWindowData.Flags |= ImGuiNextWindowDataFlags_HasContentSize;
+    g.NextWindowData.ContentSizeVal = ImFloor(size);
+}
+
+void ImGui::SetNextWindowScroll(const ImVec2& scroll)
+{
+    ImGuiContext& g = *GImGui;
+    g.NextWindowData.Flags |= ImGuiNextWindowDataFlags_HasScroll;
+    g.NextWindowData.ScrollVal = scroll;
+}
+
+void ImGui::SetNextWindowCollapsed(bool collapsed, ImGuiCond cond)
+{
+    ImGuiContext& g = *GImGui;
+    IM_ASSERT(cond == 0 || ImIsPowerOfTwo(cond)); // Make sure the user doesn't attempt to combine multiple condition flags.
+    g.NextWindowData.Flags |= ImGuiNextWindowDataFlags_HasCollapsed;
+    g.NextWindowData.CollapsedVal = collapsed;
+    g.NextWindowData.CollapsedCond = cond ? cond : ImGuiCond_Always;
+}
+
+void ImGui::SetNextWindowFocus()
+{
+    ImGuiContext& g = *GImGui;
+    g.NextWindowData.Flags |= ImGuiNextWindowDataFlags_HasFocus;
+}
+
+void ImGui::SetNextWindowBgAlpha(float alpha)
+{
+    ImGuiContext& g = *GImGui;
+    g.NextWindowData.Flags |= ImGuiNextWindowDataFlags_HasBgAlpha;
+    g.NextWindowData.BgAlphaVal = alpha;
+}
+
+ImDrawList* ImGui::GetWindowDrawList()
+{
+    ImGuiWindow* window = GetCurrentWindow();
+    return window->DrawList;
+}
+
+ImFont* ImGui::GetFont()
+{
+    return GImGui->Font;
+}
+
+float ImGui::GetFontSize()
+{
+    return GImGui->FontSize;
+}
+
+ImVec2 ImGui::GetFontTexUvWhitePixel()
+{
+    return GImGui->DrawListSharedData.TexUvWhitePixel;
+}
+
+void ImGui::SetWindowFontScale(float scale)
+{
+    IM_ASSERT(scale > 0.0f);
+    ImGuiContext& g = *GImGui;
+    ImGuiWindow* window = GetCurrentWindow();
+    window->FontWindowScale = scale;
+    g.FontSize = g.DrawListSharedData.FontSize = window->CalcFontSize();
+}
+
+void ImGui::ActivateItem(ImGuiID id)
+{
+    ImGuiContext& g = *GImGui;
+    g.NavNextActivateId = id;
+    g.NavNextActivateFlags = ImGuiActivateFlags_None;
+}
+
+void ImGui::PushFocusScope(ImGuiID id)
+{
+    ImGuiContext& g = *GImGui;
+    ImGuiWindow* window = g.CurrentWindow;
+    g.FocusScopeStack.push_back(window->DC.NavFocusScopeIdCurrent);
+    window->DC.NavFocusScopeIdCurrent = id;
+}
+
+void ImGui::PopFocusScope()
+{
+    ImGuiContext& g = *GImGui;
+    ImGuiWindow* window = g.CurrentWindow;
+    IM_ASSERT(g.FocusScopeStack.Size > 0); // Too many PopFocusScope() ?
+    window->DC.NavFocusScopeIdCurrent = g.FocusScopeStack.back();
+    g.FocusScopeStack.pop_back();
+}
+
+// Note: this will likely be called ActivateItem() once we rework our Focus/Activation system!
+void ImGui::SetKeyboardFocusHere(int offset)
+{
+    ImGuiContext& g = *GImGui;
+    ImGuiWindow* window = g.CurrentWindow;
+    IM_ASSERT(offset >= -1);    // -1 is allowed but not below
+    IMGUI_DEBUG_LOG_ACTIVEID("SetKeyboardFocusHere(%d) in window \"%s\"\n", offset, window->Name);
+
+    // It makes sense in the vast majority of cases to never interrupt a drag and drop.
+    // When we refactor this function into ActivateItem() we may want to make this an option.
+    // MovingWindow is protected from most user inputs using SetActiveIdUsingNavAndKeys(), but
+    // is also automatically dropped in the event g.ActiveId is stolen.
+    if (g.DragDropActive || g.MovingWindow != NULL)
+    {
+        IMGUI_DEBUG_LOG_ACTIVEID("SetKeyboardFocusHere() ignored while DragDropActive!\n");
+        return;
+    }
+
+    SetNavWindow(window);
+
+    ImGuiScrollFlags scroll_flags = window->Appearing ? ImGuiScrollFlags_KeepVisibleEdgeX | ImGuiScrollFlags_AlwaysCenterY : ImGuiScrollFlags_KeepVisibleEdgeX | ImGuiScrollFlags_KeepVisibleEdgeY;
+    NavMoveRequestSubmit(ImGuiDir_None, offset < 0 ? ImGuiDir_Up : ImGuiDir_Down, ImGuiNavMoveFlags_Tabbing | ImGuiNavMoveFlags_FocusApi, scroll_flags); // FIXME-NAV: Once we refactor tabbing, add LegacyApi flag to not activate non-inputable.
+    if (offset == -1)
+    {
+        NavMoveRequestResolveWithLastItem(&g.NavMoveResultLocal);
+    }
+    else
+    {
+        g.NavTabbingDir = 1;
+        g.NavTabbingCounter = offset + 1;
+    }
+}
+
+void ImGui::SetItemDefaultFocus()
+{
+    ImGuiContext& g = *GImGui;
+    ImGuiWindow* window = g.CurrentWindow;
+    if (!window->Appearing)
+        return;
+    if (g.NavWindow != window->RootWindowForNav || (!g.NavInitRequest && g.NavInitResultId == 0) || g.NavLayer != window->DC.NavLayerCurrent)
+        return;
+
+    g.NavInitRequest = false;
+    g.NavInitResultId = g.LastItemData.ID;
+    g.NavInitResultRectRel = WindowRectAbsToRel(window, g.LastItemData.Rect);
+    NavUpdateAnyRequestFlag();
+
+    // Scroll could be done in NavInitRequestApplyResult() via a opt-in flag (we however don't want regular init requests to scroll)
+    if (!IsItemVisible())
+        ScrollToRectEx(window, g.LastItemData.Rect, ImGuiScrollFlags_None);
+}
+
+void ImGui::SetStateStorage(ImGuiStorage* tree)
+{
+    ImGuiWindow* window = GImGui->CurrentWindow;
+    window->DC.StateStorage = tree ? tree : &window->StateStorage;
+}
+
+ImGuiStorage* ImGui::GetStateStorage()
+{
+    ImGuiWindow* window = GImGui->CurrentWindow;
+    return window->DC.StateStorage;
+}
+
+void ImGui::PushID(const char* str_id)
+{
+    ImGuiContext& g = *GImGui;
+    ImGuiWindow* window = g.CurrentWindow;
+    ImGuiID id = window->GetID(str_id);
+    window->IDStack.push_back(id);
+}
+
+void ImGui::PushID(const char* str_id_begin, const char* str_id_end)
+{
+    ImGuiContext& g = *GImGui;
+    ImGuiWindow* window = g.CurrentWindow;
+    ImGuiID id = window->GetID(str_id_begin, str_id_end);
+    window->IDStack.push_back(id);
+}
+
+void ImGui::PushID(const void* ptr_id)
+{
+    ImGuiContext& g = *GImGui;
+    ImGuiWindow* window = g.CurrentWindow;
+    ImGuiID id = window->GetID(ptr_id);
+    window->IDStack.push_back(id);
+}
+
+void ImGui::PushID(int int_id)
+{
+    ImGuiContext& g = *GImGui;
+    ImGuiWindow* window = g.CurrentWindow;
+    ImGuiID id = window->GetID(int_id);
+    window->IDStack.push_back(id);
+}
+
+// Push a given id value ignoring the ID stack as a seed.
+void ImGui::PushOverrideID(ImGuiID id)
+{
+    ImGuiContext& g = *GImGui;
+    ImGuiWindow* window = g.CurrentWindow;
+    if (g.DebugHookIdInfo == id)
+        DebugHookIdInfo(id, ImGuiDataType_ID, NULL, NULL);
+    window->IDStack.push_back(id);
+}
+
+// Helper to avoid a common series of PushOverrideID -> GetID() -> PopID() call
+// (note that when using this pattern, TestEngine's "Stack Tool" will tend to not display the intermediate stack level.
+//  for that to work we would need to do PushOverrideID() -> ItemAdd() -> PopID() which would alter widget code a little more)
+ImGuiID ImGui::GetIDWithSeed(const char* str, const char* str_end, ImGuiID seed)
+{
+    ImGuiID id = ImHashStr(str, str_end ? (str_end - str) : 0, seed);
+    ImGuiContext& g = *GImGui;
+    if (g.DebugHookIdInfo == id)
+        DebugHookIdInfo(id, ImGuiDataType_String, str, str_end);
+    return id;
+}
+
+void ImGui::PopID()
+{
+    ImGuiWindow* window = GImGui->CurrentWindow;
+    IM_ASSERT(window->IDStack.Size > 1); // Too many PopID(), or could be popping in a wrong/different window?
+    window->IDStack.pop_back();
+}
+
+ImGuiID ImGui::GetID(const char* str_id)
+{
+    ImGuiWindow* window = GImGui->CurrentWindow;
+    return window->GetID(str_id);
+}
+
+ImGuiID ImGui::GetID(const char* str_id_begin, const char* str_id_end)
+{
+    ImGuiWindow* window = GImGui->CurrentWindow;
+    return window->GetID(str_id_begin, str_id_end);
+}
+
+ImGuiID ImGui::GetID(const void* ptr_id)
+{
+    ImGuiWindow* window = GImGui->CurrentWindow;
+    return window->GetID(ptr_id);
+}
+
+bool ImGui::IsRectVisible(const ImVec2& size)
+{
+    ImGuiWindow* window = GImGui->CurrentWindow;
+    return window->ClipRect.Overlaps(ImRect(window->DC.CursorPos, window->DC.CursorPos + size));
+}
+
+bool ImGui::IsRectVisible(const ImVec2& rect_min, const ImVec2& rect_max)
+{
+    ImGuiWindow* window = GImGui->CurrentWindow;
+    return window->ClipRect.Overlaps(ImRect(rect_min, rect_max));
+}
+
+
+//-----------------------------------------------------------------------------
+// [SECTION] INPUTS
+//-----------------------------------------------------------------------------
+
+// Test if mouse cursor is hovering given rectangle
+// NB- Rectangle is clipped by our current clip setting
+// NB- Expand the rectangle to be generous on imprecise inputs systems (g.Style.TouchExtraPadding)
+bool ImGui::IsMouseHoveringRect(const ImVec2& r_min, const ImVec2& r_max, bool clip)
+{
+    ImGuiContext& g = *GImGui;
+
+    // Clip
+    ImRect rect_clipped(r_min, r_max);
+    if (clip)
+        rect_clipped.ClipWith(g.CurrentWindow->ClipRect);
+
+    // Expand for touch input
+    const ImRect rect_for_touch(rect_clipped.Min - g.Style.TouchExtraPadding, rect_clipped.Max + g.Style.TouchExtraPadding);
+    if (!rect_for_touch.Contains(g.IO.MousePos))
+        return false;
+    return true;
+}
+
+ImGuiKeyData* ImGui::GetKeyData(ImGuiKey key)
+{
+    ImGuiContext& g = *GImGui;
+    int index;
+#ifndef IMGUI_DISABLE_OBSOLETE_KEYIO
+    IM_ASSERT(key >= ImGuiKey_LegacyNativeKey_BEGIN && key < ImGuiKey_NamedKey_END);
+    if (IsLegacyKey(key))
+        index = (g.IO.KeyMap[key] != -1) ? g.IO.KeyMap[key] : key; // Remap native->imgui or imgui->native
+    else
+        index = key;
+#else
+    IM_ASSERT(IsNamedKey(key) && "Support for user key indices was dropped in favor of ImGuiKey. Please update backend & user code.");
+    index = key - ImGuiKey_NamedKey_BEGIN;
+#endif
+    return &g.IO.KeysData[index];
+}
+
+#ifndef IMGUI_DISABLE_OBSOLETE_KEYIO
+int ImGui::GetKeyIndex(ImGuiKey key)
+{
+    ImGuiContext& g = *GImGui;
+    IM_ASSERT(IsNamedKey(key));
+    const ImGuiKeyData* key_data = GetKeyData(key);
+    return (int)(key_data - g.IO.KeysData);
+}
+#endif
+
+// Those names a provided for debugging purpose and are not meant to be saved persistently not compared.
+static const char* const GKeyNames[] =
+{
+    "Tab", "LeftArrow", "RightArrow", "UpArrow", "DownArrow", "PageUp", "PageDown",
+    "Home", "End", "Insert", "Delete", "Backspace", "Space", "Enter", "Escape",
+    "LeftCtrl", "LeftShift", "LeftAlt", "LeftSuper", "RightCtrl", "RightShift", "RightAlt", "RightSuper", "Menu",
+    "0", "1", "2", "3", "4", "5", "6", "7", "8", "9", "A", "B", "C", "D", "E", "F", "G", "H",
+    "I", "J", "K", "L", "M", "N", "O", "P", "Q", "R", "S", "T", "U", "V", "W", "X", "Y", "Z",
+    "F1", "F2", "F3", "F4", "F5", "F6", "F7", "F8", "F9", "F10", "F11", "F12",
+    "Apostrophe", "Comma", "Minus", "Period", "Slash", "Semicolon", "Equal", "LeftBracket",
+    "Backslash", "RightBracket", "GraveAccent", "CapsLock", "ScrollLock", "NumLock", "PrintScreen",
+    "Pause", "Keypad0", "Keypad1", "Keypad2", "Keypad3", "Keypad4", "Keypad5", "Keypad6",
+    "Keypad7", "Keypad8", "Keypad9", "KeypadDecimal", "KeypadDivide", "KeypadMultiply",
+    "KeypadSubtract", "KeypadAdd", "KeypadEnter", "KeypadEqual",
+    "GamepadStart", "GamepadBack", "GamepadFaceUp", "GamepadFaceDown", "GamepadFaceLeft", "GamepadFaceRight",
+    "GamepadDpadUp", "GamepadDpadDown", "GamepadDpadLeft", "GamepadDpadRight",
+    "GamepadL1", "GamepadR1", "GamepadL2", "GamepadR2", "GamepadL3", "GamepadR3",
+    "GamepadLStickUp", "GamepadLStickDown", "GamepadLStickLeft", "GamepadLStickRight",
+    "GamepadRStickUp", "GamepadRStickDown", "GamepadRStickLeft", "GamepadRStickRight",
+    "ModCtrl", "ModShift", "ModAlt", "ModSuper"
+};
+IM_STATIC_ASSERT(ImGuiKey_NamedKey_COUNT == IM_ARRAYSIZE(GKeyNames));
+
+const char* ImGui::GetKeyName(ImGuiKey key)
+{
+#ifdef IMGUI_DISABLE_OBSOLETE_KEYIO
+    IM_ASSERT((IsNamedKey(key) || key == ImGuiKey_None) && "Support for user key indices was dropped in favor of ImGuiKey. Please update backend and user code.");
+#else
+    if (IsLegacyKey(key))
+    {
+        ImGuiIO& io = GetIO();
+        if (io.KeyMap[key] == -1)
+            return "N/A";
+        IM_ASSERT(IsNamedKey((ImGuiKey)io.KeyMap[key]));
+        key = (ImGuiKey)io.KeyMap[key];
+    }
+#endif
+    if (key == ImGuiKey_None)
+        return "None";
+    if (!IsNamedKey(key))
+        return "Unknown";
+
+    return GKeyNames[key - ImGuiKey_NamedKey_BEGIN];
+}
+
+// t0 = previous time (e.g.: g.Time - g.IO.DeltaTime)
+// t1 = current time (e.g.: g.Time)
+// An event is triggered at:
+//  t = 0.0f     t = repeat_delay,    t = repeat_delay + repeat_rate*N
+int ImGui::CalcTypematicRepeatAmount(float t0, float t1, float repeat_delay, float repeat_rate)
+{
+    if (t1 == 0.0f)
+        return 1;
+    if (t0 >= t1)
+        return 0;
+    if (repeat_rate <= 0.0f)
+        return (t0 < repeat_delay) && (t1 >= repeat_delay);
+    const int count_t0 = (t0 < repeat_delay) ? -1 : (int)((t0 - repeat_delay) / repeat_rate);
+    const int count_t1 = (t1 < repeat_delay) ? -1 : (int)((t1 - repeat_delay) / repeat_rate);
+    const int count = count_t1 - count_t0;
+    return count;
+}
+
+int ImGui::GetKeyPressedAmount(ImGuiKey key, float repeat_delay, float repeat_rate)
+{
+    ImGuiContext& g = *GImGui;
+    const ImGuiKeyData* key_data = GetKeyData(key);
+    const float t = key_data->DownDuration;
+    return CalcTypematicRepeatAmount(t - g.IO.DeltaTime, t, repeat_delay, repeat_rate);
+}
+
+// Note that Dear ImGui doesn't know the meaning/semantic of ImGuiKey from 0..511: they are legacy native keycodes.
+// Consider transitioning from 'IsKeyDown(MY_ENGINE_KEY_A)' (<1.87) to IsKeyDown(ImGuiKey_A) (>= 1.87)
+bool ImGui::IsKeyDown(ImGuiKey key)
+{
+    const ImGuiKeyData* key_data = GetKeyData(key);
+    if (!key_data->Down)
+        return false;
+    return true;
+}
+
+bool ImGui::IsKeyPressed(ImGuiKey key, bool repeat)
+{
+    ImGuiContext& g = *GImGui;
+    const ImGuiKeyData* key_data = GetKeyData(key);
+    const float t = key_data->DownDuration;
+    if (t < 0.0f)
+        return false;
+    const bool pressed = (t == 0.0f) || (repeat && t > g.IO.KeyRepeatDelay && GetKeyPressedAmount(key, g.IO.KeyRepeatDelay, g.IO.KeyRepeatRate) > 0);
+    if (!pressed)
+        return false;
+    return true;
+}
+
+bool ImGui::IsKeyReleased(ImGuiKey key)
+{
+    const ImGuiKeyData* key_data = GetKeyData(key);
+    if (key_data->DownDurationPrev < 0.0f || key_data->Down)
+        return false;
+    return true;
+}
+
+bool ImGui::IsMouseDown(ImGuiMouseButton button)
+{
+    ImGuiContext& g = *GImGui;
+    IM_ASSERT(button >= 0 && button < IM_ARRAYSIZE(g.IO.MouseDown));
+    return g.IO.MouseDown[button];
+}
+
+bool ImGui::IsMouseClicked(ImGuiMouseButton button, bool repeat)
+{
+    ImGuiContext& g = *GImGui;
+    IM_ASSERT(button >= 0 && button < IM_ARRAYSIZE(g.IO.MouseDown));
+    const float t = g.IO.MouseDownDuration[button];
+    if (t == 0.0f)
+        return true;
+    if (repeat && t > g.IO.KeyRepeatDelay)
+        return CalcTypematicRepeatAmount(t - g.IO.DeltaTime, t, g.IO.KeyRepeatDelay, g.IO.KeyRepeatRate) > 0;
+    return false;
+}
+
+bool ImGui::IsMouseReleased(ImGuiMouseButton button)
+{
+    ImGuiContext& g = *GImGui;
+    IM_ASSERT(button >= 0 && button < IM_ARRAYSIZE(g.IO.MouseDown));
+    return g.IO.MouseReleased[button];
+}
+
+bool ImGui::IsMouseDoubleClicked(ImGuiMouseButton button)
+{
+    ImGuiContext& g = *GImGui;
+    IM_ASSERT(button >= 0 && button < IM_ARRAYSIZE(g.IO.MouseDown));
+    return g.IO.MouseClickedCount[button] == 2;
+}
+
+int ImGui::GetMouseClickedCount(ImGuiMouseButton button)
+{
+    ImGuiContext& g = *GImGui;
+    IM_ASSERT(button >= 0 && button < IM_ARRAYSIZE(g.IO.MouseDown));
+    return g.IO.MouseClickedCount[button];
+}
+
+// Return if a mouse click/drag went past the given threshold. Valid to call during the MouseReleased frame.
+// [Internal] This doesn't test if the button is pressed
+bool ImGui::IsMouseDragPastThreshold(ImGuiMouseButton button, float lock_threshold)
+{
+    ImGuiContext& g = *GImGui;
+    IM_ASSERT(button >= 0 && button < IM_ARRAYSIZE(g.IO.MouseDown));
+    if (lock_threshold < 0.0f)
+        lock_threshold = g.IO.MouseDragThreshold;
+    return g.IO.MouseDragMaxDistanceSqr[button] >= lock_threshold * lock_threshold;
+}
+
+bool ImGui::IsMouseDragging(ImGuiMouseButton button, float lock_threshold)
+{
+    ImGuiContext& g = *GImGui;
+    IM_ASSERT(button >= 0 && button < IM_ARRAYSIZE(g.IO.MouseDown));
+    if (!g.IO.MouseDown[button])
+        return false;
+    return IsMouseDragPastThreshold(button, lock_threshold);
+}
+
+ImVec2 ImGui::GetMousePos()
+{
+    ImGuiContext& g = *GImGui;
+    return g.IO.MousePos;
+}
+
+// NB: prefer to call right after BeginPopup(). At the time Selectable/MenuItem is activated, the popup is already closed!
+ImVec2 ImGui::GetMousePosOnOpeningCurrentPopup()
+{
+    ImGuiContext& g = *GImGui;
+    if (g.BeginPopupStack.Size > 0)
+        return g.OpenPopupStack[g.BeginPopupStack.Size - 1].OpenMousePos;
+    return g.IO.MousePos;
+}
+
+// We typically use ImVec2(-FLT_MAX,-FLT_MAX) to denote an invalid mouse position.
+bool ImGui::IsMousePosValid(const ImVec2* mouse_pos)
+{
+    // The assert is only to silence a false-positive in XCode Static Analysis.
+    // Because GImGui is not dereferenced in every code path, the static analyzer assume that it may be NULL (which it doesn't for other functions).
+    IM_ASSERT(GImGui != NULL);
+    const float MOUSE_INVALID = -256000.0f;
+    ImVec2 p = mouse_pos ? *mouse_pos : GImGui->IO.MousePos;
+    return p.x >= MOUSE_INVALID && p.y >= MOUSE_INVALID;
+}
+
+// [WILL OBSOLETE] This was designed for backends, but prefer having backend maintain a mask of held mouse buttons, because upcoming input queue system will make this invalid.
+bool ImGui::IsAnyMouseDown()
+{
+    ImGuiContext& g = *GImGui;
+    for (int n = 0; n < IM_ARRAYSIZE(g.IO.MouseDown); n++)
+        if (g.IO.MouseDown[n])
+            return true;
+    return false;
+}
+
+// Return the delta from the initial clicking position while the mouse button is clicked or was just released.
+// This is locked and return 0.0f until the mouse moves past a distance threshold at least once.
+// NB: This is only valid if IsMousePosValid(). backends in theory should always keep mouse position valid when dragging even outside the client window.
+ImVec2 ImGui::GetMouseDragDelta(ImGuiMouseButton button, float lock_threshold)
+{
+    ImGuiContext& g = *GImGui;
+    IM_ASSERT(button >= 0 && button < IM_ARRAYSIZE(g.IO.MouseDown));
+    if (lock_threshold < 0.0f)
+        lock_threshold = g.IO.MouseDragThreshold;
+    if (g.IO.MouseDown[button] || g.IO.MouseReleased[button])
+        if (g.IO.MouseDragMaxDistanceSqr[button] >= lock_threshold * lock_threshold)
+            if (IsMousePosValid(&g.IO.MousePos) && IsMousePosValid(&g.IO.MouseClickedPos[button]))
+                return g.IO.MousePos - g.IO.MouseClickedPos[button];
+    return ImVec2(0.0f, 0.0f);
+}
+
+void ImGui::ResetMouseDragDelta(ImGuiMouseButton button)
+{
+    ImGuiContext& g = *GImGui;
+    IM_ASSERT(button >= 0 && button < IM_ARRAYSIZE(g.IO.MouseDown));
+    // NB: We don't need to reset g.IO.MouseDragMaxDistanceSqr
+    g.IO.MouseClickedPos[button] = g.IO.MousePos;
+}
+
+ImGuiMouseCursor ImGui::GetMouseCursor()
+{
+    ImGuiContext& g = *GImGui;
+    return g.MouseCursor;
+}
+
+void ImGui::SetMouseCursor(ImGuiMouseCursor cursor_type)
+{
+    ImGuiContext& g = *GImGui;
+    g.MouseCursor = cursor_type;
+}
+
+void ImGui::SetNextFrameWantCaptureKeyboard(bool want_capture_keyboard)
+{
+    ImGuiContext& g = *GImGui;
+    g.WantCaptureKeyboardNextFrame = want_capture_keyboard ? 1 : 0;
+}
+
+void ImGui::SetNextFrameWantCaptureMouse(bool want_capture_mouse)
+{
+    ImGuiContext& g = *GImGui;
+    g.WantCaptureMouseNextFrame = want_capture_mouse ? 1 : 0;
+}
+
+#ifndef IMGUI_DISABLE_DEBUG_TOOLS
+static const char* GetInputSourceName(ImGuiInputSource source)
+{
+    const char* input_source_names[] = { "None", "Mouse", "Keyboard", "Gamepad", "Nav", "Clipboard" };
+    IM_ASSERT(IM_ARRAYSIZE(input_source_names) == ImGuiInputSource_COUNT && source >= 0 && source < ImGuiInputSource_COUNT);
+    return input_source_names[source];
+}
+#endif
+
+/*static void DebugPrintInputEvent(const char* prefix, const ImGuiInputEvent* e)
+{
+    if (e->Type == ImGuiInputEventType_MousePos)    { IMGUI_DEBUG_LOG_IO("%s: MousePos (%.1f %.1f)\n", prefix, e->MousePos.PosX, e->MousePos.PosY); return; }
+    if (e->Type == ImGuiInputEventType_MouseButton) { IMGUI_DEBUG_LOG_IO("%s: MouseButton %d %s\n", prefix, e->MouseButton.Button, e->MouseButton.Down ? "Down" : "Up"); return; }
+    if (e->Type == ImGuiInputEventType_MouseWheel)  { IMGUI_DEBUG_LOG_IO("%s: MouseWheel (%.1f %.1f)\n", prefix, e->MouseWheel.WheelX, e->MouseWheel.WheelY); return; }
+    if (e->Type == ImGuiInputEventType_Key)         { IMGUI_DEBUG_LOG_IO("%s: Key \"%s\" %s\n", prefix, ImGui::GetKeyName(e->Key.Key), e->Key.Down ? "Down" : "Up"); return; }
+    if (e->Type == ImGuiInputEventType_Text)        { IMGUI_DEBUG_LOG_IO("%s: Text: %c (U+%08X)\n", prefix, e->Text.Char, e->Text.Char); return; }
+    if (e->Type == ImGuiInputEventType_Focus)       { IMGUI_DEBUG_LOG_IO("%s: AppFocused %d\n", prefix, e->AppFocused.Focused); return; }
+}*/
+
+// Process input queue
+// We always call this with the value of 'bool g.IO.ConfigInputTrickleEventQueue'.
+// - trickle_fast_inputs = false : process all events, turn into flattened input state (e.g. successive down/up/down/up will be lost)
+// - trickle_fast_inputs = true  : process as many events as possible (successive down/up/down/up will be trickled over several frames so nothing is lost) (new feature in 1.87)
+void ImGui::UpdateInputEvents(bool trickle_fast_inputs)
+{
+    ImGuiContext& g = *GImGui;
+    ImGuiIO& io = g.IO;
+
+    // Only trickle chars<>key when working with InputText()
+    // FIXME: InputText() could parse event trail?
+    // FIXME: Could specialize chars<>keys trickling rules for control keys (those not typically associated to characters)
+    const bool trickle_interleaved_keys_and_text = (trickle_fast_inputs && g.WantTextInputNextFrame == 1);
+
+    bool mouse_moved = false, mouse_wheeled = false, key_changed = false, text_inputted = false;
+    int  mouse_button_changed = 0x00;
+    ImBitArray<ImGuiKey_KeysData_SIZE> key_changed_mask;
+
+    int event_n = 0;
+    for (; event_n < g.InputEventsQueue.Size; event_n++)
+    {
+        const ImGuiInputEvent* e = &g.InputEventsQueue[event_n];
+        if (e->Type == ImGuiInputEventType_MousePos)
+        {
+            ImVec2 event_pos(e->MousePos.PosX, e->MousePos.PosY);
+            if (IsMousePosValid(&event_pos))
+                event_pos = ImVec2(ImFloorSigned(event_pos.x), ImFloorSigned(event_pos.y)); // Apply same flooring as UpdateMouseInputs()
+            if (io.MousePos.x != event_pos.x || io.MousePos.y != event_pos.y)
+            {
+                // Trickling Rule: Stop processing queued events if we already handled a mouse button change
+                if (trickle_fast_inputs && (mouse_button_changed != 0 || mouse_wheeled || key_changed || text_inputted))
+                    break;
+                io.MousePos = event_pos;
+                mouse_moved = true;
+            }
+        }
+        else if (e->Type == ImGuiInputEventType_MouseButton)
+        {
+            const ImGuiMouseButton button = e->MouseButton.Button;
+            IM_ASSERT(button >= 0 && button < ImGuiMouseButton_COUNT);
+            if (io.MouseDown[button] != e->MouseButton.Down)
+            {
+                // Trickling Rule: Stop processing queued events if we got multiple action on the same button
+                if (trickle_fast_inputs && ((mouse_button_changed & (1 << button)) || mouse_wheeled))
+                    break;
+                io.MouseDown[button] = e->MouseButton.Down;
+                mouse_button_changed |= (1 << button);
+            }
+        }
+        else if (e->Type == ImGuiInputEventType_MouseWheel)
+        {
+            if (e->MouseWheel.WheelX != 0.0f || e->MouseWheel.WheelY != 0.0f)
+            {
+                // Trickling Rule: Stop processing queued events if we got multiple action on the event
+                if (trickle_fast_inputs && (mouse_moved || mouse_button_changed != 0))
+                    break;
+                io.MouseWheelH += e->MouseWheel.WheelX;
+                io.MouseWheel += e->MouseWheel.WheelY;
+                mouse_wheeled = true;
+            }
+        }
+        else if (e->Type == ImGuiInputEventType_Key)
+        {
+            ImGuiKey key = e->Key.Key;
+            IM_ASSERT(key != ImGuiKey_None);
+            const int keydata_index = (key - ImGuiKey_KeysData_OFFSET);
+            ImGuiKeyData* keydata = &io.KeysData[keydata_index];
+            if (keydata->Down != e->Key.Down || keydata->AnalogValue != e->Key.AnalogValue)
+            {
+                // Trickling Rule: Stop processing queued events if we got multiple action on the same button
+                if (trickle_fast_inputs && keydata->Down != e->Key.Down && (key_changed_mask.TestBit(keydata_index) || text_inputted || mouse_button_changed != 0))
+                    break;
+                keydata->Down = e->Key.Down;
+                keydata->AnalogValue = e->Key.AnalogValue;
+                key_changed = true;
+                key_changed_mask.SetBit(keydata_index);
+
+                if (key == ImGuiKey_ModCtrl || key == ImGuiKey_ModShift || key == ImGuiKey_ModAlt || key == ImGuiKey_ModSuper)
+                {
+                    if (key == ImGuiKey_ModCtrl) { io.KeyCtrl = keydata->Down; }
+                    if (key == ImGuiKey_ModShift) { io.KeyShift = keydata->Down; }
+                    if (key == ImGuiKey_ModAlt) { io.KeyAlt = keydata->Down; }
+                    if (key == ImGuiKey_ModSuper) { io.KeySuper = keydata->Down; }
+                    io.KeyMods = GetMergedModFlags();
+                }
+
+                // Allow legacy code using io.KeysDown[GetKeyIndex()] with new backends
+#ifndef IMGUI_DISABLE_OBSOLETE_KEYIO
+                io.KeysDown[key] = keydata->Down;
+                if (io.KeyMap[key] != -1)
+                    io.KeysDown[io.KeyMap[key]] = keydata->Down;
+#endif
+            }
+        }
+        else if (e->Type == ImGuiInputEventType_Text)
+        {
+            // Trickling Rule: Stop processing queued events if keys/mouse have been interacted with
+            if (trickle_fast_inputs && ((key_changed && trickle_interleaved_keys_and_text) || mouse_button_changed != 0 || mouse_moved || mouse_wheeled))
+                break;
+            unsigned int c = e->Text.Char;
+            io.InputQueueCharacters.push_back(c <= IM_UNICODE_CODEPOINT_MAX ? (ImWchar)c : IM_UNICODE_CODEPOINT_INVALID);
+            if (trickle_interleaved_keys_and_text)
+                text_inputted = true;
+        }
+        else if (e->Type == ImGuiInputEventType_Focus)
+        {
+            // We intentionally overwrite this and process lower, in order to give a chance
+            // to multi-viewports backends to queue AddFocusEvent(false) + AddFocusEvent(true) in same frame.
+            io.AppFocusLost = !e->AppFocused.Focused;
+        }
+        else
+        {
+            IM_ASSERT(0 && "Unknown event!");
+        }
+    }
+
+    // Record trail (for domain-specific applications wanting to access a precise trail)
+    //if (event_n != 0) IMGUI_DEBUG_LOG_IO("Processed: %d / Remaining: %d\n", event_n, g.InputEventsQueue.Size - event_n);
+    for (int n = 0; n < event_n; n++)
+        g.InputEventsTrail.push_back(g.InputEventsQueue[n]);
+
+    // [DEBUG]
+    /*if (event_n != 0)
+        for (int n = 0; n < g.InputEventsQueue.Size; n++)
+            DebugPrintInputEvent(n < event_n ? "Processed" : "Remaining", &g.InputEventsQueue[n]);*/
+
+    // Remaining events will be processed on the next frame
+    if (event_n == g.InputEventsQueue.Size)
+        g.InputEventsQueue.resize(0);
+    else
+        g.InputEventsQueue.erase(g.InputEventsQueue.Data, g.InputEventsQueue.Data + event_n);
+
+    // Clear buttons state when focus is lost
+    // (this is useful so e.g. releasing Alt after focus loss on Alt-Tab doesn't trigger the Alt menu toggle)
+    if (g.IO.AppFocusLost)
+    {
+        g.IO.ClearInputKeys();
+        g.IO.AppFocusLost = false;
+    }
+}
+
+
+//-----------------------------------------------------------------------------
+// [SECTION] ERROR CHECKING
+//-----------------------------------------------------------------------------
+
+// Helper function to verify ABI compatibility between caller code and compiled version of Dear ImGui.
+// Verify that the type sizes are matching between the calling file's compilation unit and imgui.cpp's compilation unit
+// If this triggers you have an issue:
+// - Most commonly: mismatched headers and compiled code version.
+// - Or: mismatched configuration #define, compilation settings, packing pragma etc.
+//   The configuration settings mentioned in imconfig.h must be set for all compilation units involved with Dear ImGui,
+//   which is way it is required you put them in your imconfig file (and not just before including imgui.h).
+//   Otherwise it is possible that different compilation units would see different structure layout
+bool ImGui::DebugCheckVersionAndDataLayout(const char* version, size_t sz_io, size_t sz_style, size_t sz_vec2, size_t sz_vec4, size_t sz_vert, size_t sz_idx)
+{
+    bool error = false;
+    if (strcmp(version, IMGUI_VERSION) != 0) { error = true; IM_ASSERT(strcmp(version, IMGUI_VERSION) == 0 && "Mismatched version string!"); }
+    if (sz_io != sizeof(ImGuiIO)) { error = true; IM_ASSERT(sz_io == sizeof(ImGuiIO) && "Mismatched struct layout!"); }
+    if (sz_style != sizeof(ImGuiStyle)) { error = true; IM_ASSERT(sz_style == sizeof(ImGuiStyle) && "Mismatched struct layout!"); }
+    if (sz_vec2 != sizeof(ImVec2)) { error = true; IM_ASSERT(sz_vec2 == sizeof(ImVec2) && "Mismatched struct layout!"); }
+    if (sz_vec4 != sizeof(ImVec4)) { error = true; IM_ASSERT(sz_vec4 == sizeof(ImVec4) && "Mismatched struct layout!"); }
+    if (sz_vert != sizeof(ImDrawVert)) { error = true; IM_ASSERT(sz_vert == sizeof(ImDrawVert) && "Mismatched struct layout!"); }
+    if (sz_idx != sizeof(ImDrawIdx)) { error = true; IM_ASSERT(sz_idx == sizeof(ImDrawIdx) && "Mismatched struct layout!"); }
+    return !error;
+}
+
+static void ImGui::ErrorCheckNewFrameSanityChecks()
+{
+    ImGuiContext& g = *GImGui;
+
+    // Check user IM_ASSERT macro
+    // (IF YOU GET A WARNING OR COMPILE ERROR HERE: it means your assert macro is incorrectly defined!
+    //  If your macro uses multiple statements, it NEEDS to be surrounded by a 'do { ... } while (0)' block.
+    //  This is a common C/C++ idiom to allow multiple statements macros to be used in control flow blocks.)
+    // #define IM_ASSERT(EXPR)   if (SomeCode(EXPR)) SomeMoreCode();                    // Wrong!
+    // #define IM_ASSERT(EXPR)   do { if (SomeCode(EXPR)) SomeMoreCode(); } while (0)   // Correct!
+    if (true) IM_ASSERT(1); else IM_ASSERT(0);
+
+    // Check user data
+    // (We pass an error message in the assert expression to make it visible to programmers who are not using a debugger, as most assert handlers display their argument)
+    IM_ASSERT(g.Initialized);
+    IM_ASSERT((g.IO.DeltaTime > 0.0f || g.FrameCount == 0)              && "Need a positive DeltaTime!");
+    IM_ASSERT((g.FrameCount == 0 || g.FrameCountEnded == g.FrameCount)  && "Forgot to call Render() or EndFrame() at the end of the previous frame?");
+    IM_ASSERT(g.IO.DisplaySize.x >= 0.0f && g.IO.DisplaySize.y >= 0.0f  && "Invalid DisplaySize value!");
+    IM_ASSERT(g.IO.Fonts->IsBuilt()                                     && "Font Atlas not built! Make sure you called ImGui_ImplXXXX_NewFrame() function for renderer backend, which should call io.Fonts->GetTexDataAsRGBA32() / GetTexDataAsAlpha8()");
+    IM_ASSERT(g.Style.CurveTessellationTol > 0.0f                       && "Invalid style setting!");
+    IM_ASSERT(g.Style.CircleTessellationMaxError > 0.0f                 && "Invalid style setting!");
+    IM_ASSERT(g.Style.Alpha >= 0.0f && g.Style.Alpha <= 1.0f            && "Invalid style setting!"); // Allows us to avoid a few clamps in color computations
+    IM_ASSERT(g.Style.WindowMinSize.x >= 1.0f && g.Style.WindowMinSize.y >= 1.0f && "Invalid style setting.");
+    IM_ASSERT(g.Style.WindowMenuButtonPosition == ImGuiDir_None || g.Style.WindowMenuButtonPosition == ImGuiDir_Left || g.Style.WindowMenuButtonPosition == ImGuiDir_Right);
+    IM_ASSERT(g.Style.ColorButtonPosition == ImGuiDir_Left || g.Style.ColorButtonPosition == ImGuiDir_Right);
+#ifndef IMGUI_DISABLE_OBSOLETE_KEYIO
+    for (int n = ImGuiKey_NamedKey_BEGIN; n < ImGuiKey_COUNT; n++)
+        IM_ASSERT(g.IO.KeyMap[n] >= -1 && g.IO.KeyMap[n] < ImGuiKey_LegacyNativeKey_END && "io.KeyMap[] contains an out of bound value (need to be 0..511, or -1 for unmapped key)");
+
+    // Check: required key mapping (we intentionally do NOT check all keys to not pressure user into setting up everything, but Space is required and was only added in 1.60 WIP)
+    if ((g.IO.ConfigFlags & ImGuiConfigFlags_NavEnableKeyboard) && g.IO.BackendUsingLegacyKeyArrays == 1)
+        IM_ASSERT(g.IO.KeyMap[ImGuiKey_Space] != -1 && "ImGuiKey_Space is not mapped, required for keyboard navigation.");
+#endif
+
+    // Check: the io.ConfigWindowsResizeFromEdges option requires backend to honor mouse cursor changes and set the ImGuiBackendFlags_HasMouseCursors flag accordingly.
+    if (g.IO.ConfigWindowsResizeFromEdges && !(g.IO.BackendFlags & ImGuiBackendFlags_HasMouseCursors))
+        g.IO.ConfigWindowsResizeFromEdges = false;
+}
+
+static void ImGui::ErrorCheckEndFrameSanityChecks()
+{
+    ImGuiContext& g = *GImGui;
+
+    // Verify that io.KeyXXX fields haven't been tampered with. Key mods should not be modified between NewFrame() and EndFrame()
+    // One possible reason leading to this assert is that your backends update inputs _AFTER_ NewFrame().
+    // It is known that when some modal native windows called mid-frame takes focus away, some backends such as GLFW will
+    // send key release events mid-frame. This would normally trigger this assertion and lead to sheared inputs.
+    // We silently accommodate for this case by ignoring/ the case where all io.KeyXXX modifiers were released (aka key_mod_flags == 0),
+    // while still correctly asserting on mid-frame key press events.
+    const ImGuiModFlags key_mods = GetMergedModFlags();
+    IM_ASSERT((key_mods == 0 || g.IO.KeyMods == key_mods) && "Mismatching io.KeyCtrl/io.KeyShift/io.KeyAlt/io.KeySuper vs io.KeyMods");
+    IM_UNUSED(key_mods);
+
+    // [EXPERIMENTAL] Recover from errors: You may call this yourself before EndFrame().
+    //ErrorCheckEndFrameRecover();
+
+    // Report when there is a mismatch of Begin/BeginChild vs End/EndChild calls. Important: Remember that the Begin/BeginChild API requires you
+    // to always call End/EndChild even if Begin/BeginChild returns false! (this is unfortunately inconsistent with most other Begin* API).
+    if (g.CurrentWindowStack.Size != 1)
+    {
+        if (g.CurrentWindowStack.Size > 1)
+        {
+            IM_ASSERT_USER_ERROR(g.CurrentWindowStack.Size == 1, "Mismatched Begin/BeginChild vs End/EndChild calls: did you forget to call End/EndChild?");
+            while (g.CurrentWindowStack.Size > 1)
+                End();
+        }
+        else
+        {
+            IM_ASSERT_USER_ERROR(g.CurrentWindowStack.Size == 1, "Mismatched Begin/BeginChild vs End/EndChild calls: did you call End/EndChild too much?");
+        }
+    }
+
+    IM_ASSERT_USER_ERROR(g.GroupStack.Size == 0, "Missing EndGroup call!");
+}
+
+// Experimental recovery from incorrect usage of BeginXXX/EndXXX/PushXXX/PopXXX calls.
+// Must be called during or before EndFrame().
+// This is generally flawed as we are not necessarily End/Popping things in the right order.
+// FIXME: Can't recover from inside BeginTabItem/EndTabItem yet.
+// FIXME: Can't recover from interleaved BeginTabBar/Begin
+void    ImGui::ErrorCheckEndFrameRecover(ImGuiErrorLogCallback log_callback, void* user_data)
+{
+    // PVS-Studio V1044 is "Loop break conditions do not depend on the number of iterations"
+    ImGuiContext& g = *GImGui;
+    while (g.CurrentWindowStack.Size > 0) //-V1044
+    {
+        ErrorCheckEndWindowRecover(log_callback, user_data);
+        ImGuiWindow* window = g.CurrentWindow;
+        if (g.CurrentWindowStack.Size == 1)
+        {
+            IM_ASSERT(window->IsFallbackWindow);
+            break;
+        }
+        if (window->Flags & ImGuiWindowFlags_ChildWindow)
+        {
+            if (log_callback) log_callback(user_data, "Recovered from missing EndChild() for '%s'", window->Name);
+            EndChild();
+        }
+        else
+        {
+            if (log_callback) log_callback(user_data, "Recovered from missing End() for '%s'", window->Name);
+            End();
+        }
+    }
+}
+
+// Must be called before End()/EndChild()
+void    ImGui::ErrorCheckEndWindowRecover(ImGuiErrorLogCallback log_callback, void* user_data)
+{
+    ImGuiContext& g = *GImGui;
+    while (g.CurrentTable && (g.CurrentTable->OuterWindow == g.CurrentWindow || g.CurrentTable->InnerWindow == g.CurrentWindow))
+    {
+        if (log_callback) log_callback(user_data, "Recovered from missing EndTable() in '%s'", g.CurrentTable->OuterWindow->Name);
+        EndTable();
+    }
+
+    ImGuiWindow* window = g.CurrentWindow;
+    ImGuiStackSizes* stack_sizes = &g.CurrentWindowStack.back().StackSizesOnBegin;
+    IM_ASSERT(window != NULL);
+    while (g.CurrentTabBar != NULL) //-V1044
+    {
+        if (log_callback) log_callback(user_data, "Recovered from missing EndTabBar() in '%s'", window->Name);
+        EndTabBar();
+    }
+    while (window->DC.TreeDepth > 0)
+    {
+        if (log_callback) log_callback(user_data, "Recovered from missing TreePop() in '%s'", window->Name);
+        TreePop();
+    }
+    while (g.GroupStack.Size > stack_sizes->SizeOfGroupStack) //-V1044
+    {
+        if (log_callback) log_callback(user_data, "Recovered from missing EndGroup() in '%s'", window->Name);
+        EndGroup();
+    }
+    while (window->IDStack.Size > 1)
+    {
+        if (log_callback) log_callback(user_data, "Recovered from missing PopID() in '%s'", window->Name);
+        PopID();
+    }
+    while (g.DisabledStackSize > stack_sizes->SizeOfDisabledStack) //-V1044
+    {
+        if (log_callback) log_callback(user_data, "Recovered from missing EndDisabled() in '%s'", window->Name);
+        EndDisabled();
+    }
+    while (g.ColorStack.Size > stack_sizes->SizeOfColorStack)
+    {
+        if (log_callback) log_callback(user_data, "Recovered from missing PopStyleColor() in '%s' for ImGuiCol_%s", window->Name, GetStyleColorName(g.ColorStack.back().Col));
+        PopStyleColor();
+    }
+    while (g.ItemFlagsStack.Size > stack_sizes->SizeOfItemFlagsStack) //-V1044
+    {
+        if (log_callback) log_callback(user_data, "Recovered from missing PopItemFlag() in '%s'", window->Name);
+        PopItemFlag();
+    }
+    while (g.StyleVarStack.Size > stack_sizes->SizeOfStyleVarStack) //-V1044
+    {
+        if (log_callback) log_callback(user_data, "Recovered from missing PopStyleVar() in '%s'", window->Name);
+        PopStyleVar();
+    }
+    while (g.FocusScopeStack.Size > stack_sizes->SizeOfFocusScopeStack) //-V1044
+    {
+        if (log_callback) log_callback(user_data, "Recovered from missing PopFocusScope() in '%s'", window->Name);
+        PopFocusScope();
+    }
+}
+
+// Save current stack sizes for later compare
+void ImGuiStackSizes::SetToCurrentState()
+{
+    ImGuiContext& g = *GImGui;
+    ImGuiWindow* window = g.CurrentWindow;
+    SizeOfIDStack = (short)window->IDStack.Size;
+    SizeOfColorStack = (short)g.ColorStack.Size;
+    SizeOfStyleVarStack = (short)g.StyleVarStack.Size;
+    SizeOfFontStack = (short)g.FontStack.Size;
+    SizeOfFocusScopeStack = (short)g.FocusScopeStack.Size;
+    SizeOfGroupStack = (short)g.GroupStack.Size;
+    SizeOfItemFlagsStack = (short)g.ItemFlagsStack.Size;
+    SizeOfBeginPopupStack = (short)g.BeginPopupStack.Size;
+    SizeOfDisabledStack = (short)g.DisabledStackSize;
+}
+
+// Compare to detect usage errors
+void ImGuiStackSizes::CompareWithCurrentState()
+{
+    ImGuiContext& g = *GImGui;
+    ImGuiWindow* window = g.CurrentWindow;
+    IM_UNUSED(window);
+
+    // Window stacks
+    // NOT checking: DC.ItemWidth, DC.TextWrapPos (per window) to allow user to conveniently push once and not pop (they are cleared on Begin)
+    IM_ASSERT(SizeOfIDStack         == window->IDStack.Size     && "PushID/PopID or TreeNode/TreePop Mismatch!");
+
+    // Global stacks
+    // For color, style and font stacks there is an incentive to use Push/Begin/Pop/.../End patterns, so we relax our checks a little to allow them.
+    IM_ASSERT(SizeOfGroupStack      == g.GroupStack.Size        && "BeginGroup/EndGroup Mismatch!");
+    IM_ASSERT(SizeOfBeginPopupStack == g.BeginPopupStack.Size   && "BeginPopup/EndPopup or BeginMenu/EndMenu Mismatch!");
+    IM_ASSERT(SizeOfDisabledStack   == g.DisabledStackSize      && "BeginDisabled/EndDisabled Mismatch!");
+    IM_ASSERT(SizeOfItemFlagsStack  >= g.ItemFlagsStack.Size    && "PushItemFlag/PopItemFlag Mismatch!");
+    IM_ASSERT(SizeOfColorStack      >= g.ColorStack.Size        && "PushStyleColor/PopStyleColor Mismatch!");
+    IM_ASSERT(SizeOfStyleVarStack   >= g.StyleVarStack.Size     && "PushStyleVar/PopStyleVar Mismatch!");
+    IM_ASSERT(SizeOfFontStack       >= g.FontStack.Size         && "PushFont/PopFont Mismatch!");
+    IM_ASSERT(SizeOfFocusScopeStack == g.FocusScopeStack.Size   && "PushFocusScope/PopFocusScope Mismatch!");
+}
+
+
+//-----------------------------------------------------------------------------
+// [SECTION] LAYOUT
+//-----------------------------------------------------------------------------
+// - ItemSize()
+// - ItemAdd()
+// - SameLine()
+// - GetCursorScreenPos()
+// - SetCursorScreenPos()
+// - GetCursorPos(), GetCursorPosX(), GetCursorPosY()
+// - SetCursorPos(), SetCursorPosX(), SetCursorPosY()
+// - GetCursorStartPos()
+// - Indent()
+// - Unindent()
+// - SetNextItemWidth()
+// - PushItemWidth()
+// - PushMultiItemsWidths()
+// - PopItemWidth()
+// - CalcItemWidth()
+// - CalcItemSize()
+// - GetTextLineHeight()
+// - GetTextLineHeightWithSpacing()
+// - GetFrameHeight()
+// - GetFrameHeightWithSpacing()
+// - GetContentRegionMax()
+// - GetContentRegionMaxAbs() [Internal]
+// - GetContentRegionAvail(),
+// - GetWindowContentRegionMin(), GetWindowContentRegionMax()
+// - BeginGroup()
+// - EndGroup()
+// Also see in imgui_widgets: tab bars, and in imgui_tables: tables, columns.
+//-----------------------------------------------------------------------------
+
+// Advance cursor given item size for layout.
+// Register minimum needed size so it can extend the bounding box used for auto-fit calculation.
+// See comments in ItemAdd() about how/why the size provided to ItemSize() vs ItemAdd() may often different.
+void ImGui::ItemSize(const ImVec2& size, float text_baseline_y)
+{
+    ImGuiContext& g = *GImGui;
+    ImGuiWindow* window = g.CurrentWindow;
+    if (window->SkipItems)
+        return;
+
+    // We increase the height in this function to accommodate for baseline offset.
+    // In theory we should be offsetting the starting position (window->DC.CursorPos), that will be the topic of a larger refactor,
+    // but since ItemSize() is not yet an API that moves the cursor (to handle e.g. wrapping) enlarging the height has the same effect.
+    const float offset_to_match_baseline_y = (text_baseline_y >= 0) ? ImMax(0.0f, window->DC.CurrLineTextBaseOffset - text_baseline_y) : 0.0f;
+
+    const float line_y1 = window->DC.IsSameLine ? window->DC.CursorPosPrevLine.y : window->DC.CursorPos.y;
+    const float line_height = ImMax(window->DC.CurrLineSize.y, /*ImMax(*/window->DC.CursorPos.y - line_y1/*, 0.0f)*/ + size.y + offset_to_match_baseline_y);
+
+    // Always align ourselves on pixel boundaries
+    //if (g.IO.KeyAlt) window->DrawList->AddRect(window->DC.CursorPos, window->DC.CursorPos + ImVec2(size.x, line_height), IM_COL32(255,0,0,200)); // [DEBUG]
+    window->DC.CursorPosPrevLine.x = window->DC.CursorPos.x + size.x;
+    window->DC.CursorPosPrevLine.y = line_y1;
+    window->DC.CursorPos.x = IM_FLOOR(window->Pos.x + window->DC.Indent.x + window->DC.ColumnsOffset.x);    // Next line
+    window->DC.CursorPos.y = IM_FLOOR(line_y1 + line_height + g.Style.ItemSpacing.y);                    // Next line
+    window->DC.CursorMaxPos.x = ImMax(window->DC.CursorMaxPos.x, window->DC.CursorPosPrevLine.x);
+    window->DC.CursorMaxPos.y = ImMax(window->DC.CursorMaxPos.y, window->DC.CursorPos.y - g.Style.ItemSpacing.y);
+    //if (g.IO.KeyAlt) window->DrawList->AddCircle(window->DC.CursorMaxPos, 3.0f, IM_COL32(255,0,0,255), 4); // [DEBUG]
+
+    window->DC.PrevLineSize.y = line_height;
+    window->DC.CurrLineSize.y = 0.0f;
+    window->DC.PrevLineTextBaseOffset = ImMax(window->DC.CurrLineTextBaseOffset, text_baseline_y);
+    window->DC.CurrLineTextBaseOffset = 0.0f;
+    window->DC.IsSameLine = false;
+
+    // Horizontal layout mode
+    if (window->DC.LayoutType == ImGuiLayoutType_Horizontal)
+        SameLine();
+}
+
+// Declare item bounding box for clipping and interaction.
+// Note that the size can be different than the one provided to ItemSize(). Typically, widgets that spread over available surface
+// declare their minimum size requirement to ItemSize() and provide a larger region to ItemAdd() which is used drawing/interaction.
+bool ImGui::ItemAdd(const ImRect& bb, ImGuiID id, const ImRect* nav_bb_arg, ImGuiItemFlags extra_flags)
+{
+    ImGuiContext& g = *GImGui;
+    ImGuiWindow* window = g.CurrentWindow;
+
+    // Set item data
+    // (DisplayRect is left untouched, made valid when ImGuiItemStatusFlags_HasDisplayRect is set)
+    g.LastItemData.ID = id;
+    g.LastItemData.Rect = bb;
+    g.LastItemData.NavRect = nav_bb_arg ? *nav_bb_arg : bb;
+    g.LastItemData.InFlags = g.CurrentItemFlags | extra_flags;
+    g.LastItemData.StatusFlags = ImGuiItemStatusFlags_None;
+
+    // Directional navigation processing
+    if (id != 0)
+    {
+        KeepAliveID(id);
+
+        // Runs prior to clipping early-out
+        //  (a) So that NavInitRequest can be honored, for newly opened windows to select a default widget
+        //  (b) So that we can scroll up/down past clipped items. This adds a small O(N) cost to regular navigation requests
+        //      unfortunately, but it is still limited to one window. It may not scale very well for windows with ten of
+        //      thousands of item, but at least NavMoveRequest is only set on user interaction, aka maximum once a frame.
+        //      We could early out with "if (is_clipped && !g.NavInitRequest) return false;" but when we wouldn't be able
+        //      to reach unclipped widgets. This would work if user had explicit scrolling control (e.g. mapped on a stick).
+        // We intentionally don't check if g.NavWindow != NULL because g.NavAnyRequest should only be set when it is non null.
+        // If we crash on a NULL g.NavWindow we need to fix the bug elsewhere.
+        window->DC.NavLayersActiveMaskNext |= (1 << window->DC.NavLayerCurrent);
+        if (g.NavId == id || g.NavAnyRequest)
+            if (g.NavWindow->RootWindowForNav == window->RootWindowForNav)
+                if (window == g.NavWindow || ((window->Flags | g.NavWindow->Flags) & ImGuiWindowFlags_NavFlattened))
+                    NavProcessItem();
+
+        // [DEBUG] People keep stumbling on this problem and using "" as identifier in the root of a window instead of "##something".
+        // Empty identifier are valid and useful in a small amount of cases, but 99.9% of the time you want to use "##something".
+        // READ THE FAQ: https://dearimgui.org/faq
+        IM_ASSERT(id != window->ID && "Cannot have an empty ID at the root of a window. If you need an empty label, use ## and read the FAQ about how the ID Stack works!");
+
+        // [DEBUG] Item Picker tool, when enabling the "extended" version we perform the check in ItemAdd()
+#ifdef IMGUI_DEBUG_TOOL_ITEM_PICKER_EX
+        if (id == g.DebugItemPickerBreakId)
+        {
+            IM_DEBUG_BREAK();
+            g.DebugItemPickerBreakId = 0;
+        }
+#endif
+    }
+    g.NextItemData.Flags = ImGuiNextItemDataFlags_None;
+
+#ifdef IMGUI_ENABLE_TEST_ENGINE
+    if (id != 0)
+        IMGUI_TEST_ENGINE_ITEM_ADD(nav_bb_arg ? *nav_bb_arg : bb, id);
+#endif
+
+    // Clipping test
+    const bool is_clipped = IsClippedEx(bb, id);
+    if (is_clipped)
+        return false;
+    //if (g.IO.KeyAlt) window->DrawList->AddRect(bb.Min, bb.Max, IM_COL32(255,255,0,120)); // [DEBUG]
+
+    // We need to calculate this now to take account of the current clipping rectangle (as items like Selectable may change them)
+    if (IsMouseHoveringRect(bb.Min, bb.Max))
+        g.LastItemData.StatusFlags |= ImGuiItemStatusFlags_HoveredRect;
+    return true;
+}
+
+// Gets back to previous line and continue with horizontal layout
+//      offset_from_start_x == 0 : follow right after previous item
+//      offset_from_start_x != 0 : align to specified x position (relative to window/group left)
+//      spacing_w < 0            : use default spacing if pos_x == 0, no spacing if pos_x != 0
+//      spacing_w >= 0           : enforce spacing amount
+void ImGui::SameLine(float offset_from_start_x, float spacing_w)
+{
+    ImGuiContext& g = *GImGui;
+    ImGuiWindow* window = g.CurrentWindow;
+    if (window->SkipItems)
+        return;
+
+    if (offset_from_start_x != 0.0f)
+    {
+        if (spacing_w < 0.0f)
+            spacing_w = 0.0f;
+        window->DC.CursorPos.x = window->Pos.x - window->Scroll.x + offset_from_start_x + spacing_w + window->DC.GroupOffset.x + window->DC.ColumnsOffset.x;
+        window->DC.CursorPos.y = window->DC.CursorPosPrevLine.y;
+    }
+    else
+    {
+        if (spacing_w < 0.0f)
+            spacing_w = g.Style.ItemSpacing.x;
+        window->DC.CursorPos.x = window->DC.CursorPosPrevLine.x + spacing_w;
+        window->DC.CursorPos.y = window->DC.CursorPosPrevLine.y;
+    }
+    window->DC.CurrLineSize = window->DC.PrevLineSize;
+    window->DC.CurrLineTextBaseOffset = window->DC.PrevLineTextBaseOffset;
+    window->DC.IsSameLine = true;
+}
+
+ImVec2 ImGui::GetCursorScreenPos()
+{
+    ImGuiWindow* window = GetCurrentWindowRead();
+    return window->DC.CursorPos;
+}
+
+void ImGui::SetCursorScreenPos(const ImVec2& pos)
+{
+    ImGuiWindow* window = GetCurrentWindow();
+    window->DC.CursorPos = pos;
+    window->DC.CursorMaxPos = ImMax(window->DC.CursorMaxPos, window->DC.CursorPos);
+}
+
+// User generally sees positions in window coordinates. Internally we store CursorPos in absolute screen coordinates because it is more convenient.
+// Conversion happens as we pass the value to user, but it makes our naming convention confusing because GetCursorPos() == (DC.CursorPos - window.Pos). May want to rename 'DC.CursorPos'.
+ImVec2 ImGui::GetCursorPos()
+{
+    ImGuiWindow* window = GetCurrentWindowRead();
+    return window->DC.CursorPos - window->Pos + window->Scroll;
+}
+
+float ImGui::GetCursorPosX()
+{
+    ImGuiWindow* window = GetCurrentWindowRead();
+    return window->DC.CursorPos.x - window->Pos.x + window->Scroll.x;
+}
+
+float ImGui::GetCursorPosY()
+{
+    ImGuiWindow* window = GetCurrentWindowRead();
+    return window->DC.CursorPos.y - window->Pos.y + window->Scroll.y;
+}
+
+void ImGui::SetCursorPos(const ImVec2& local_pos)
+{
+    ImGuiWindow* window = GetCurrentWindow();
+    window->DC.CursorPos = window->Pos - window->Scroll + local_pos;
+    window->DC.CursorMaxPos = ImMax(window->DC.CursorMaxPos, window->DC.CursorPos);
+}
+
+void ImGui::SetCursorPosX(float x)
+{
+    ImGuiWindow* window = GetCurrentWindow();
+    window->DC.CursorPos.x = window->Pos.x - window->Scroll.x + x;
+    window->DC.CursorMaxPos.x = ImMax(window->DC.CursorMaxPos.x, window->DC.CursorPos.x);
+}
+
+void ImGui::SetCursorPosY(float y)
+{
+    ImGuiWindow* window = GetCurrentWindow();
+    window->DC.CursorPos.y = window->Pos.y - window->Scroll.y + y;
+    window->DC.CursorMaxPos.y = ImMax(window->DC.CursorMaxPos.y, window->DC.CursorPos.y);
+}
+
+ImVec2 ImGui::GetCursorStartPos()
+{
+    ImGuiWindow* window = GetCurrentWindowRead();
+    return window->DC.CursorStartPos - window->Pos;
+}
+
+void ImGui::Indent(float indent_w)
+{
+    ImGuiContext& g = *GImGui;
+    ImGuiWindow* window = GetCurrentWindow();
+    window->DC.Indent.x += (indent_w != 0.0f) ? indent_w : g.Style.IndentSpacing;
+    window->DC.CursorPos.x = window->Pos.x + window->DC.Indent.x + window->DC.ColumnsOffset.x;
+}
+
+void ImGui::Unindent(float indent_w)
+{
+    ImGuiContext& g = *GImGui;
+    ImGuiWindow* window = GetCurrentWindow();
+    window->DC.Indent.x -= (indent_w != 0.0f) ? indent_w : g.Style.IndentSpacing;
+    window->DC.CursorPos.x = window->Pos.x + window->DC.Indent.x + window->DC.ColumnsOffset.x;
+}
+
+// Affect large frame+labels widgets only.
+void ImGui::SetNextItemWidth(float item_width)
+{
+    ImGuiContext& g = *GImGui;
+    g.NextItemData.Flags |= ImGuiNextItemDataFlags_HasWidth;
+    g.NextItemData.Width = item_width;
+}
+
+// FIXME: Remove the == 0.0f behavior?
+void ImGui::PushItemWidth(float item_width)
+{
+    ImGuiContext& g = *GImGui;
+    ImGuiWindow* window = g.CurrentWindow;
+    window->DC.ItemWidthStack.push_back(window->DC.ItemWidth); // Backup current width
+    window->DC.ItemWidth = (item_width == 0.0f ? window->ItemWidthDefault : item_width);
+    g.NextItemData.Flags &= ~ImGuiNextItemDataFlags_HasWidth;
+}
+
+void ImGui::PushMultiItemsWidths(int components, float w_full)
+{
+    ImGuiContext& g = *GImGui;
+    ImGuiWindow* window = g.CurrentWindow;
+    const ImGuiStyle& style = g.Style;
+    const float w_item_one  = ImMax(1.0f, IM_FLOOR((w_full - (style.ItemInnerSpacing.x) * (components - 1)) / (float)components));
+    const float w_item_last = ImMax(1.0f, IM_FLOOR(w_full - (w_item_one + style.ItemInnerSpacing.x) * (components - 1)));
+    window->DC.ItemWidthStack.push_back(window->DC.ItemWidth); // Backup current width
+    window->DC.ItemWidthStack.push_back(w_item_last);
+    for (int i = 0; i < components - 2; i++)
+        window->DC.ItemWidthStack.push_back(w_item_one);
+    window->DC.ItemWidth = (components == 1) ? w_item_last : w_item_one;
+    g.NextItemData.Flags &= ~ImGuiNextItemDataFlags_HasWidth;
+}
+
+void ImGui::PopItemWidth()
+{
+    ImGuiWindow* window = GetCurrentWindow();
+    window->DC.ItemWidth = window->DC.ItemWidthStack.back();
+    window->DC.ItemWidthStack.pop_back();
+}
+
+// Calculate default item width given value passed to PushItemWidth() or SetNextItemWidth().
+// The SetNextItemWidth() data is generally cleared/consumed by ItemAdd() or NextItemData.ClearFlags()
+float ImGui::CalcItemWidth()
+{
+    ImGuiContext& g = *GImGui;
+    ImGuiWindow* window = g.CurrentWindow;
+    float w;
+    if (g.NextItemData.Flags & ImGuiNextItemDataFlags_HasWidth)
+        w = g.NextItemData.Width;
+    else
+        w = window->DC.ItemWidth;
+    if (w < 0.0f)
+    {
+        float region_max_x = GetContentRegionMaxAbs().x;
+        w = ImMax(1.0f, region_max_x - window->DC.CursorPos.x + w);
+    }
+    w = IM_FLOOR(w);
+    return w;
+}
+
+// [Internal] Calculate full item size given user provided 'size' parameter and default width/height. Default width is often == CalcItemWidth().
+// Those two functions CalcItemWidth vs CalcItemSize are awkwardly named because they are not fully symmetrical.
+// Note that only CalcItemWidth() is publicly exposed.
+// The 4.0f here may be changed to match CalcItemWidth() and/or BeginChild() (right now we have a mismatch which is harmless but undesirable)
+ImVec2 ImGui::CalcItemSize(ImVec2 size, float default_w, float default_h)
+{
+    ImGuiContext& g = *GImGui;
+    ImGuiWindow* window = g.CurrentWindow;
+
+    ImVec2 region_max;
+    if (size.x < 0.0f || size.y < 0.0f)
+        region_max = GetContentRegionMaxAbs();
+
+    if (size.x == 0.0f)
+        size.x = default_w;
+    else if (size.x < 0.0f)
+        size.x = ImMax(4.0f, region_max.x - window->DC.CursorPos.x + size.x);
+
+    if (size.y == 0.0f)
+        size.y = default_h;
+    else if (size.y < 0.0f)
+        size.y = ImMax(4.0f, region_max.y - window->DC.CursorPos.y + size.y);
+
+    return size;
+}
+
+float ImGui::GetTextLineHeight()
+{
+    ImGuiContext& g = *GImGui;
+    return g.FontSize;
+}
+
+float ImGui::GetTextLineHeightWithSpacing()
+{
+    ImGuiContext& g = *GImGui;
+    return g.FontSize + g.Style.ItemSpacing.y;
+}
+
+float ImGui::GetFrameHeight()
+{
+    ImGuiContext& g = *GImGui;
+    return g.FontSize + g.Style.FramePadding.y * 2.0f;
+}
+
+float ImGui::GetFrameHeightWithSpacing()
+{
+    ImGuiContext& g = *GImGui;
+    return g.FontSize + g.Style.FramePadding.y * 2.0f + g.Style.ItemSpacing.y;
+}
+
+// FIXME: All the Contents Region function are messy or misleading. WE WILL AIM TO OBSOLETE ALL OF THEM WITH A NEW "WORK RECT" API. Thanks for your patience!
+
+// FIXME: This is in window space (not screen space!).
+ImVec2 ImGui::GetContentRegionMax()
+{
+    ImGuiContext& g = *GImGui;
+    ImGuiWindow* window = g.CurrentWindow;
+    ImVec2 mx = window->ContentRegionRect.Max - window->Pos;
+    if (window->DC.CurrentColumns || g.CurrentTable)
+        mx.x = window->WorkRect.Max.x - window->Pos.x;
+    return mx;
+}
+
+// [Internal] Absolute coordinate. Saner. This is not exposed until we finishing refactoring work rect features.
+ImVec2 ImGui::GetContentRegionMaxAbs()
+{
+    ImGuiContext& g = *GImGui;
+    ImGuiWindow* window = g.CurrentWindow;
+    ImVec2 mx = window->ContentRegionRect.Max;
+    if (window->DC.CurrentColumns || g.CurrentTable)
+        mx.x = window->WorkRect.Max.x;
+    return mx;
+}
+
+ImVec2 ImGui::GetContentRegionAvail()
+{
+    ImGuiWindow* window = GImGui->CurrentWindow;
+    return GetContentRegionMaxAbs() - window->DC.CursorPos;
+}
+
+// In window space (not screen space!)
+ImVec2 ImGui::GetWindowContentRegionMin()
+{
+    ImGuiWindow* window = GImGui->CurrentWindow;
+    return window->ContentRegionRect.Min - window->Pos;
+}
+
+ImVec2 ImGui::GetWindowContentRegionMax()
+{
+    ImGuiWindow* window = GImGui->CurrentWindow;
+    return window->ContentRegionRect.Max - window->Pos;
+}
+
+// Lock horizontal starting position + capture group bounding box into one "item" (so you can use IsItemHovered() or layout primitives such as SameLine() on whole group, etc.)
+// Groups are currently a mishmash of functionalities which should perhaps be clarified and separated.
+// FIXME-OPT: Could we safely early out on ->SkipItems?
+void ImGui::BeginGroup()
+{
+    ImGuiContext& g = *GImGui;
+    ImGuiWindow* window = g.CurrentWindow;
+
+    g.GroupStack.resize(g.GroupStack.Size + 1);
+    ImGuiGroupData& group_data = g.GroupStack.back();
+    group_data.WindowID = window->ID;
+    group_data.BackupCursorPos = window->DC.CursorPos;
+    group_data.BackupCursorMaxPos = window->DC.CursorMaxPos;
+    group_data.BackupIndent = window->DC.Indent;
+    group_data.BackupGroupOffset = window->DC.GroupOffset;
+    group_data.BackupCurrLineSize = window->DC.CurrLineSize;
+    group_data.BackupCurrLineTextBaseOffset = window->DC.CurrLineTextBaseOffset;
+    group_data.BackupActiveIdIsAlive = g.ActiveIdIsAlive;
+    group_data.BackupHoveredIdIsAlive = g.HoveredId != 0;
+    group_data.BackupActiveIdPreviousFrameIsAlive = g.ActiveIdPreviousFrameIsAlive;
+    group_data.EmitItem = true;
+
+    window->DC.GroupOffset.x = window->DC.CursorPos.x - window->Pos.x - window->DC.ColumnsOffset.x;
+    window->DC.Indent = window->DC.GroupOffset;
+    window->DC.CursorMaxPos = window->DC.CursorPos;
+    window->DC.CurrLineSize = ImVec2(0.0f, 0.0f);
+    if (g.LogEnabled)
+        g.LogLinePosY = -FLT_MAX; // To enforce a carriage return
+}
+
+void ImGui::EndGroup()
+{
+    ImGuiContext& g = *GImGui;
+    ImGuiWindow* window = g.CurrentWindow;
+    IM_ASSERT(g.GroupStack.Size > 0); // Mismatched BeginGroup()/EndGroup() calls
+
+    ImGuiGroupData& group_data = g.GroupStack.back();
+    IM_ASSERT(group_data.WindowID == window->ID); // EndGroup() in wrong window?
+
+    ImRect group_bb(group_data.BackupCursorPos, ImMax(window->DC.CursorMaxPos, group_data.BackupCursorPos));
+
+    window->DC.CursorPos = group_data.BackupCursorPos;
+    window->DC.CursorMaxPos = ImMax(group_data.BackupCursorMaxPos, window->DC.CursorMaxPos);
+    window->DC.Indent = group_data.BackupIndent;
+    window->DC.GroupOffset = group_data.BackupGroupOffset;
+    window->DC.CurrLineSize = group_data.BackupCurrLineSize;
+    window->DC.CurrLineTextBaseOffset = group_data.BackupCurrLineTextBaseOffset;
+    if (g.LogEnabled)
+        g.LogLinePosY = -FLT_MAX; // To enforce a carriage return
+
+    if (!group_data.EmitItem)
+    {
+        g.GroupStack.pop_back();
+        return;
+    }
+
+    window->DC.CurrLineTextBaseOffset = ImMax(window->DC.PrevLineTextBaseOffset, group_data.BackupCurrLineTextBaseOffset);      // FIXME: Incorrect, we should grab the base offset from the *first line* of the group but it is hard to obtain now.
+    ItemSize(group_bb.GetSize());
+    ItemAdd(group_bb, 0, NULL, ImGuiItemFlags_NoTabStop);
+
+    // If the current ActiveId was declared within the boundary of our group, we copy it to LastItemId so IsItemActive(), IsItemDeactivated() etc. will be functional on the entire group.
+    // It would be be neater if we replaced window.DC.LastItemId by e.g. 'bool LastItemIsActive', but would put a little more burden on individual widgets.
+    // Also if you grep for LastItemId you'll notice it is only used in that context.
+    // (The two tests not the same because ActiveIdIsAlive is an ID itself, in order to be able to handle ActiveId being overwritten during the frame.)
+    const bool group_contains_curr_active_id = (group_data.BackupActiveIdIsAlive != g.ActiveId) && (g.ActiveIdIsAlive == g.ActiveId) && g.ActiveId;
+    const bool group_contains_prev_active_id = (group_data.BackupActiveIdPreviousFrameIsAlive == false) && (g.ActiveIdPreviousFrameIsAlive == true);
+    if (group_contains_curr_active_id)
+        g.LastItemData.ID = g.ActiveId;
+    else if (group_contains_prev_active_id)
+        g.LastItemData.ID = g.ActiveIdPreviousFrame;
+    g.LastItemData.Rect = group_bb;
+
+    // Forward Hovered flag
+    const bool group_contains_curr_hovered_id = (group_data.BackupHoveredIdIsAlive == false) && g.HoveredId != 0;
+    if (group_contains_curr_hovered_id)
+        g.LastItemData.StatusFlags |= ImGuiItemStatusFlags_HoveredWindow;
+
+    // Forward Edited flag
+    if (group_contains_curr_active_id && g.ActiveIdHasBeenEditedThisFrame)
+        g.LastItemData.StatusFlags |= ImGuiItemStatusFlags_Edited;
+
+    // Forward Deactivated flag
+    g.LastItemData.StatusFlags |= ImGuiItemStatusFlags_HasDeactivated;
+    if (group_contains_prev_active_id && g.ActiveId != g.ActiveIdPreviousFrame)
+        g.LastItemData.StatusFlags |= ImGuiItemStatusFlags_Deactivated;
+
+    g.GroupStack.pop_back();
+    //window->DrawList->AddRect(group_bb.Min, group_bb.Max, IM_COL32(255,0,255,255));   // [Debug]
+}
+
+
+//-----------------------------------------------------------------------------
+// [SECTION] SCROLLING
+//-----------------------------------------------------------------------------
+
+// Helper to snap on edges when aiming at an item very close to the edge,
+// So the difference between WindowPadding and ItemSpacing will be in the visible area after scrolling.
+// When we refactor the scrolling API this may be configurable with a flag?
+// Note that the effect for this won't be visible on X axis with default Style settings as WindowPadding.x == ItemSpacing.x by default.
+static float CalcScrollEdgeSnap(float target, float snap_min, float snap_max, float snap_threshold, float center_ratio)
+{
+    if (target <= snap_min + snap_threshold)
+        return ImLerp(snap_min, target, center_ratio);
+    if (target >= snap_max - snap_threshold)
+        return ImLerp(target, snap_max, center_ratio);
+    return target;
+}
+
+static ImVec2 CalcNextScrollFromScrollTargetAndClamp(ImGuiWindow* window)
+{
+    ImVec2 scroll = window->Scroll;
+    if (window->ScrollTarget.x < FLT_MAX)
+    {
+        float decoration_total_width = window->ScrollbarSizes.x;
+        float center_x_ratio = window->ScrollTargetCenterRatio.x;
+        float scroll_target_x = window->ScrollTarget.x;
+        if (window->ScrollTargetEdgeSnapDist.x > 0.0f)
+        {
+            float snap_x_min = 0.0f;
+            float snap_x_max = window->ScrollMax.x + window->SizeFull.x - decoration_total_width;
+            scroll_target_x = CalcScrollEdgeSnap(scroll_target_x, snap_x_min, snap_x_max, window->ScrollTargetEdgeSnapDist.x, center_x_ratio);
+        }
+        scroll.x = scroll_target_x - center_x_ratio * (window->SizeFull.x - decoration_total_width);
+    }
+    if (window->ScrollTarget.y < FLT_MAX)
+    {
+        float decoration_total_height = window->TitleBarHeight() + window->MenuBarHeight() + window->ScrollbarSizes.y;
+        float center_y_ratio = window->ScrollTargetCenterRatio.y;
+        float scroll_target_y = window->ScrollTarget.y;
+        if (window->ScrollTargetEdgeSnapDist.y > 0.0f)
+        {
+            float snap_y_min = 0.0f;
+            float snap_y_max = window->ScrollMax.y + window->SizeFull.y - decoration_total_height;
+            scroll_target_y = CalcScrollEdgeSnap(scroll_target_y, snap_y_min, snap_y_max, window->ScrollTargetEdgeSnapDist.y, center_y_ratio);
+        }
+        scroll.y = scroll_target_y - center_y_ratio * (window->SizeFull.y - decoration_total_height);
+    }
+    scroll.x = IM_FLOOR(ImMax(scroll.x, 0.0f));
+    scroll.y = IM_FLOOR(ImMax(scroll.y, 0.0f));
+    if (!window->Collapsed && !window->SkipItems)
+    {
+        scroll.x = ImMin(scroll.x, window->ScrollMax.x);
+        scroll.y = ImMin(scroll.y, window->ScrollMax.y);
+    }
+    return scroll;
+}
+
+void ImGui::ScrollToItem(ImGuiScrollFlags flags)
+{
+    ImGuiContext& g = *GImGui;
+    ImGuiWindow* window = g.CurrentWindow;
+    ScrollToRectEx(window, g.LastItemData.NavRect, flags);
+}
+
+void ImGui::ScrollToRect(ImGuiWindow* window, const ImRect& item_rect, ImGuiScrollFlags flags)
+{
+    ScrollToRectEx(window, item_rect, flags);
+}
+
+// Scroll to keep newly navigated item fully into view
+ImVec2 ImGui::ScrollToRectEx(ImGuiWindow* window, const ImRect& item_rect, ImGuiScrollFlags flags)
+{
+    ImGuiContext& g = *GImGui;
+    ImRect window_rect(window->InnerRect.Min - ImVec2(1, 1), window->InnerRect.Max + ImVec2(1, 1));
+    //GetForegroundDrawList(window)->AddRect(window_rect.Min, window_rect.Max, IM_COL32_WHITE); // [DEBUG]
+
+    // Check that only one behavior is selected per axis
+    IM_ASSERT((flags & ImGuiScrollFlags_MaskX_) == 0 || ImIsPowerOfTwo(flags & ImGuiScrollFlags_MaskX_));
+    IM_ASSERT((flags & ImGuiScrollFlags_MaskY_) == 0 || ImIsPowerOfTwo(flags & ImGuiScrollFlags_MaskY_));
+
+    // Defaults
+    ImGuiScrollFlags in_flags = flags;
+    if ((flags & ImGuiScrollFlags_MaskX_) == 0 && window->ScrollbarX)
+        flags |= ImGuiScrollFlags_KeepVisibleEdgeX;
+    if ((flags & ImGuiScrollFlags_MaskY_) == 0)
+        flags |= window->Appearing ? ImGuiScrollFlags_AlwaysCenterY : ImGuiScrollFlags_KeepVisibleEdgeY;
+
+    const bool fully_visible_x = item_rect.Min.x >= window_rect.Min.x && item_rect.Max.x <= window_rect.Max.x;
+    const bool fully_visible_y = item_rect.Min.y >= window_rect.Min.y && item_rect.Max.y <= window_rect.Max.y;
+    const bool can_be_fully_visible_x = (item_rect.GetWidth() + g.Style.ItemSpacing.x * 2.0f) <= window_rect.GetWidth();
+    const bool can_be_fully_visible_y = (item_rect.GetHeight() + g.Style.ItemSpacing.y * 2.0f) <= window_rect.GetHeight();
+
+    if ((flags & ImGuiScrollFlags_KeepVisibleEdgeX) && !fully_visible_x)
+    {
+        if (item_rect.Min.x < window_rect.Min.x || !can_be_fully_visible_x)
+            SetScrollFromPosX(window, item_rect.Min.x - g.Style.ItemSpacing.x - window->Pos.x, 0.0f);
+        else if (item_rect.Max.x >= window_rect.Max.x)
+            SetScrollFromPosX(window, item_rect.Max.x + g.Style.ItemSpacing.x - window->Pos.x, 1.0f);
+    }
+    else if (((flags & ImGuiScrollFlags_KeepVisibleCenterX) && !fully_visible_x) || (flags & ImGuiScrollFlags_AlwaysCenterX))
+    {
+        float target_x = can_be_fully_visible_x ? ImFloor((item_rect.Min.x + item_rect.Max.x - window->InnerRect.GetWidth()) * 0.5f) : item_rect.Min.x;
+        SetScrollFromPosX(window, target_x - window->Pos.x, 0.0f);
+    }
+
+    if ((flags & ImGuiScrollFlags_KeepVisibleEdgeY) && !fully_visible_y)
+    {
+        if (item_rect.Min.y < window_rect.Min.y || !can_be_fully_visible_y)
+            SetScrollFromPosY(window, item_rect.Min.y - g.Style.ItemSpacing.y - window->Pos.y, 0.0f);
+        else if (item_rect.Max.y >= window_rect.Max.y)
+            SetScrollFromPosY(window, item_rect.Max.y + g.Style.ItemSpacing.y - window->Pos.y, 1.0f);
+    }
+    else if (((flags & ImGuiScrollFlags_KeepVisibleCenterY) && !fully_visible_y) || (flags & ImGuiScrollFlags_AlwaysCenterY))
+    {
+        float target_y = can_be_fully_visible_y ? ImFloor((item_rect.Min.y + item_rect.Max.y - window->InnerRect.GetHeight()) * 0.5f) : item_rect.Min.y;
+        SetScrollFromPosY(window, target_y - window->Pos.y, 0.0f);
+    }
+
+    ImVec2 next_scroll = CalcNextScrollFromScrollTargetAndClamp(window);
+    ImVec2 delta_scroll = next_scroll - window->Scroll;
+
+    // Also scroll parent window to keep us into view if necessary
+    if (!(flags & ImGuiScrollFlags_NoScrollParent) && (window->Flags & ImGuiWindowFlags_ChildWindow))
+    {
+        // FIXME-SCROLL: May be an option?
+        if ((in_flags & (ImGuiScrollFlags_AlwaysCenterX | ImGuiScrollFlags_KeepVisibleCenterX)) != 0)
+            in_flags = (in_flags & ~ImGuiScrollFlags_MaskX_) | ImGuiScrollFlags_KeepVisibleEdgeX;
+        if ((in_flags & (ImGuiScrollFlags_AlwaysCenterY | ImGuiScrollFlags_KeepVisibleCenterY)) != 0)
+            in_flags = (in_flags & ~ImGuiScrollFlags_MaskY_) | ImGuiScrollFlags_KeepVisibleEdgeY;
+        delta_scroll += ScrollToRectEx(window->ParentWindow, ImRect(item_rect.Min - delta_scroll, item_rect.Max - delta_scroll), in_flags);
+    }
+
+    return delta_scroll;
+}
+
+float ImGui::GetScrollX()
+{
+    ImGuiWindow* window = GImGui->CurrentWindow;
+    return window->Scroll.x;
+}
+
+float ImGui::GetScrollY()
+{
+    ImGuiWindow* window = GImGui->CurrentWindow;
+    return window->Scroll.y;
+}
+
+float ImGui::GetScrollMaxX()
+{
+    ImGuiWindow* window = GImGui->CurrentWindow;
+    return window->ScrollMax.x;
+}
+
+float ImGui::GetScrollMaxY()
+{
+    ImGuiWindow* window = GImGui->CurrentWindow;
+    return window->ScrollMax.y;
+}
+
+void ImGui::SetScrollX(ImGuiWindow* window, float scroll_x)
+{
+    window->ScrollTarget.x = scroll_x;
+    window->ScrollTargetCenterRatio.x = 0.0f;
+    window->ScrollTargetEdgeSnapDist.x = 0.0f;
+}
+
+void ImGui::SetScrollY(ImGuiWindow* window, float scroll_y)
+{
+    window->ScrollTarget.y = scroll_y;
+    window->ScrollTargetCenterRatio.y = 0.0f;
+    window->ScrollTargetEdgeSnapDist.y = 0.0f;
+}
+
+void ImGui::SetScrollX(float scroll_x)
+{
+    ImGuiContext& g = *GImGui;
+    SetScrollX(g.CurrentWindow, scroll_x);
+}
+
+void ImGui::SetScrollY(float scroll_y)
+{
+    ImGuiContext& g = *GImGui;
+    SetScrollY(g.CurrentWindow, scroll_y);
+}
+
+// Note that a local position will vary depending on initial scroll value,
+// This is a little bit confusing so bear with us:
+//  - local_pos = (absolution_pos - window->Pos)
+//  - So local_x/local_y are 0.0f for a position at the upper-left corner of a window,
+//    and generally local_x/local_y are >(padding+decoration) && <(size-padding-decoration) when in the visible area.
+//  - They mostly exists because of legacy API.
+// Following the rules above, when trying to work with scrolling code, consider that:
+//  - SetScrollFromPosY(0.0f) == SetScrollY(0.0f + scroll.y) == has no effect!
+//  - SetScrollFromPosY(-scroll.y) == SetScrollY(-scroll.y + scroll.y) == SetScrollY(0.0f) == reset scroll. Of course writing SetScrollY(0.0f) directly then makes more sense
+// We store a target position so centering and clamping can occur on the next frame when we are guaranteed to have a known window size
+void ImGui::SetScrollFromPosX(ImGuiWindow* window, float local_x, float center_x_ratio)
+{
+    IM_ASSERT(center_x_ratio >= 0.0f && center_x_ratio <= 1.0f);
+    window->ScrollTarget.x = IM_FLOOR(local_x + window->Scroll.x); // Convert local position to scroll offset
+    window->ScrollTargetCenterRatio.x = center_x_ratio;
+    window->ScrollTargetEdgeSnapDist.x = 0.0f;
+}
+
+void ImGui::SetScrollFromPosY(ImGuiWindow* window, float local_y, float center_y_ratio)
+{
+    IM_ASSERT(center_y_ratio >= 0.0f && center_y_ratio <= 1.0f);
+    const float decoration_up_height = window->TitleBarHeight() + window->MenuBarHeight(); // FIXME: Would be nice to have a more standardized access to our scrollable/client rect;
+    local_y -= decoration_up_height;
+    window->ScrollTarget.y = IM_FLOOR(local_y + window->Scroll.y); // Convert local position to scroll offset
+    window->ScrollTargetCenterRatio.y = center_y_ratio;
+    window->ScrollTargetEdgeSnapDist.y = 0.0f;
+}
+
+void ImGui::SetScrollFromPosX(float local_x, float center_x_ratio)
+{
+    ImGuiContext& g = *GImGui;
+    SetScrollFromPosX(g.CurrentWindow, local_x, center_x_ratio);
+}
+
+void ImGui::SetScrollFromPosY(float local_y, float center_y_ratio)
+{
+    ImGuiContext& g = *GImGui;
+    SetScrollFromPosY(g.CurrentWindow, local_y, center_y_ratio);
+}
+
+// center_x_ratio: 0.0f left of last item, 0.5f horizontal center of last item, 1.0f right of last item.
+void ImGui::SetScrollHereX(float center_x_ratio)
+{
+    ImGuiContext& g = *GImGui;
+    ImGuiWindow* window = g.CurrentWindow;
+    float spacing_x = ImMax(window->WindowPadding.x, g.Style.ItemSpacing.x);
+    float target_pos_x = ImLerp(g.LastItemData.Rect.Min.x - spacing_x, g.LastItemData.Rect.Max.x + spacing_x, center_x_ratio);
+    SetScrollFromPosX(window, target_pos_x - window->Pos.x, center_x_ratio); // Convert from absolute to local pos
+
+    // Tweak: snap on edges when aiming at an item very close to the edge
+    window->ScrollTargetEdgeSnapDist.x = ImMax(0.0f, window->WindowPadding.x - spacing_x);
+}
+
+// center_y_ratio: 0.0f top of last item, 0.5f vertical center of last item, 1.0f bottom of last item.
+void ImGui::SetScrollHereY(float center_y_ratio)
+{
+    ImGuiContext& g = *GImGui;
+    ImGuiWindow* window = g.CurrentWindow;
+    float spacing_y = ImMax(window->WindowPadding.y, g.Style.ItemSpacing.y);
+    float target_pos_y = ImLerp(window->DC.CursorPosPrevLine.y - spacing_y, window->DC.CursorPosPrevLine.y + window->DC.PrevLineSize.y + spacing_y, center_y_ratio);
+    SetScrollFromPosY(window, target_pos_y - window->Pos.y, center_y_ratio); // Convert from absolute to local pos
+
+    // Tweak: snap on edges when aiming at an item very close to the edge
+    window->ScrollTargetEdgeSnapDist.y = ImMax(0.0f, window->WindowPadding.y - spacing_y);
+}
+
+//-----------------------------------------------------------------------------
+// [SECTION] TOOLTIPS
+//-----------------------------------------------------------------------------
+
+void ImGui::BeginTooltip()
+{
+    BeginTooltipEx(ImGuiTooltipFlags_None, ImGuiWindowFlags_None);
+}
+
+void ImGui::BeginTooltipEx(ImGuiTooltipFlags tooltip_flags, ImGuiWindowFlags extra_window_flags)
+{
+    ImGuiContext& g = *GImGui;
+
+    if (g.DragDropWithinSource || g.DragDropWithinTarget)
+    {
+        // The default tooltip position is a little offset to give space to see the context menu (it's also clamped within the current viewport/monitor)
+        // In the context of a dragging tooltip we try to reduce that offset and we enforce following the cursor.
+        // Whatever we do we want to call SetNextWindowPos() to enforce a tooltip position and disable clipping the tooltip without our display area, like regular tooltip do.
+        //ImVec2 tooltip_pos = g.IO.MousePos - g.ActiveIdClickOffset - g.Style.WindowPadding;
+        ImVec2 tooltip_pos = g.IO.MousePos + ImVec2(16 * g.Style.MouseCursorScale, 8 * g.Style.MouseCursorScale);
+        SetNextWindowPos(tooltip_pos);
+        SetNextWindowBgAlpha(g.Style.Colors[ImGuiCol_PopupBg].w * 0.60f);
+        //PushStyleVar(ImGuiStyleVar_Alpha, g.Style.Alpha * 0.60f); // This would be nice but e.g ColorButton with checkboard has issue with transparent colors :(
+        tooltip_flags |= ImGuiTooltipFlags_OverridePreviousTooltip;
+    }
+
+    char window_name[16];
+    ImFormatString(window_name, IM_ARRAYSIZE(window_name), "##Tooltip_%02d", g.TooltipOverrideCount);
+    if (tooltip_flags & ImGuiTooltipFlags_OverridePreviousTooltip)
+        if (ImGuiWindow* window = FindWindowByName(window_name))
+            if (window->Active)
+            {
+                // Hide previous tooltip from being displayed. We can't easily "reset" the content of a window so we create a new one.
+                window->Hidden = true;
+                window->HiddenFramesCanSkipItems = 1; // FIXME: This may not be necessary?
+                ImFormatString(window_name, IM_ARRAYSIZE(window_name), "##Tooltip_%02d", ++g.TooltipOverrideCount);
+            }
+    ImGuiWindowFlags flags = ImGuiWindowFlags_Tooltip | ImGuiWindowFlags_NoInputs | ImGuiWindowFlags_NoTitleBar | ImGuiWindowFlags_NoMove | ImGuiWindowFlags_NoResize | ImGuiWindowFlags_NoSavedSettings | ImGuiWindowFlags_AlwaysAutoResize;
+    Begin(window_name, NULL, flags | extra_window_flags);
+}
+
+void ImGui::EndTooltip()
+{
+    IM_ASSERT(GetCurrentWindowRead()->Flags & ImGuiWindowFlags_Tooltip);   // Mismatched BeginTooltip()/EndTooltip() calls
+    End();
+}
+
+void ImGui::SetTooltipV(const char* fmt, va_list args)
+{
+    BeginTooltipEx(ImGuiTooltipFlags_OverridePreviousTooltip, ImGuiWindowFlags_None);
+    TextV(fmt, args);
+    EndTooltip();
+}
+
+void ImGui::SetTooltip(const char* fmt, ...)
+{
+    va_list args;
+    va_start(args, fmt);
+    SetTooltipV(fmt, args);
+    va_end(args);
+}
+
+//-----------------------------------------------------------------------------
+// [SECTION] POPUPS
+//-----------------------------------------------------------------------------
+
+// Supported flags: ImGuiPopupFlags_AnyPopupId, ImGuiPopupFlags_AnyPopupLevel
+bool ImGui::IsPopupOpen(ImGuiID id, ImGuiPopupFlags popup_flags)
+{
+    ImGuiContext& g = *GImGui;
+    if (popup_flags & ImGuiPopupFlags_AnyPopupId)
+    {
+        // Return true if any popup is open at the current BeginPopup() level of the popup stack
+        // This may be used to e.g. test for another popups already opened to handle popups priorities at the same level.
+        IM_ASSERT(id == 0);
+        if (popup_flags & ImGuiPopupFlags_AnyPopupLevel)
+            return g.OpenPopupStack.Size > 0;
+        else
+            return g.OpenPopupStack.Size > g.BeginPopupStack.Size;
+    }
+    else
+    {
+        if (popup_flags & ImGuiPopupFlags_AnyPopupLevel)
+        {
+            // Return true if the popup is open anywhere in the popup stack
+            for (int n = 0; n < g.OpenPopupStack.Size; n++)
+                if (g.OpenPopupStack[n].PopupId == id)
+                    return true;
+            return false;
+        }
+        else
+        {
+            // Return true if the popup is open at the current BeginPopup() level of the popup stack (this is the most-common query)
+            return g.OpenPopupStack.Size > g.BeginPopupStack.Size && g.OpenPopupStack[g.BeginPopupStack.Size].PopupId == id;
+        }
+    }
+}
+
+bool ImGui::IsPopupOpen(const char* str_id, ImGuiPopupFlags popup_flags)
+{
+    ImGuiContext& g = *GImGui;
+    ImGuiID id = (popup_flags & ImGuiPopupFlags_AnyPopupId) ? 0 : g.CurrentWindow->GetID(str_id);
+    if ((popup_flags & ImGuiPopupFlags_AnyPopupLevel) && id != 0)
+        IM_ASSERT(0 && "Cannot use IsPopupOpen() with a string id and ImGuiPopupFlags_AnyPopupLevel."); // But non-string version is legal and used internally
+    return IsPopupOpen(id, popup_flags);
+}
+
+ImGuiWindow* ImGui::GetTopMostPopupModal()
+{
+    ImGuiContext& g = *GImGui;
+    for (int n = g.OpenPopupStack.Size - 1; n >= 0; n--)
+        if (ImGuiWindow* popup = g.OpenPopupStack.Data[n].Window)
+            if (popup->Flags & ImGuiWindowFlags_Modal)
+                return popup;
+    return NULL;
+}
+
+ImGuiWindow* ImGui::GetTopMostAndVisiblePopupModal()
+{
+    ImGuiContext& g = *GImGui;
+    for (int n = g.OpenPopupStack.Size - 1; n >= 0; n--)
+        if (ImGuiWindow* popup = g.OpenPopupStack.Data[n].Window)
+            if ((popup->Flags & ImGuiWindowFlags_Modal) && IsWindowActiveAndVisible(popup))
+                return popup;
+    return NULL;
+}
+
+void ImGui::OpenPopup(const char* str_id, ImGuiPopupFlags popup_flags)
+{
+    ImGuiContext& g = *GImGui;
+    ImGuiID id = g.CurrentWindow->GetID(str_id);
+    IMGUI_DEBUG_LOG_POPUP("[popup] OpenPopup(\"%s\" -> 0x%08X\n", str_id, id);
+    OpenPopupEx(id, popup_flags);
+}
+
+void ImGui::OpenPopup(ImGuiID id, ImGuiPopupFlags popup_flags)
+{
+    OpenPopupEx(id, popup_flags);
+}
+
+// Mark popup as open (toggle toward open state).
+// Popups are closed when user click outside, or activate a pressable item, or CloseCurrentPopup() is called within a BeginPopup()/EndPopup() block.
+// Popup identifiers are relative to the current ID-stack (so OpenPopup and BeginPopup needs to be at the same level).
+// One open popup per level of the popup hierarchy (NB: when assigning we reset the Window member of ImGuiPopupRef to NULL)
+void ImGui::OpenPopupEx(ImGuiID id, ImGuiPopupFlags popup_flags)
+{
+    ImGuiContext& g = *GImGui;
+    ImGuiWindow* parent_window = g.CurrentWindow;
+    const int current_stack_size = g.BeginPopupStack.Size;
+
+    if (popup_flags & ImGuiPopupFlags_NoOpenOverExistingPopup)
+        if (IsPopupOpen(0u, ImGuiPopupFlags_AnyPopupId))
+            return;
+
+    ImGuiPopupData popup_ref; // Tagged as new ref as Window will be set back to NULL if we write this into OpenPopupStack.
+    popup_ref.PopupId = id;
+    popup_ref.Window = NULL;
+    popup_ref.SourceWindow = g.NavWindow;
+    popup_ref.OpenFrameCount = g.FrameCount;
+    popup_ref.OpenParentId = parent_window->IDStack.back();
+    popup_ref.OpenPopupPos = NavCalcPreferredRefPos();
+    popup_ref.OpenMousePos = IsMousePosValid(&g.IO.MousePos) ? g.IO.MousePos : popup_ref.OpenPopupPos;
+
+    IMGUI_DEBUG_LOG_POPUP("[popup] OpenPopupEx(0x%08X)\n", id);
+    if (g.OpenPopupStack.Size < current_stack_size + 1)
+    {
+        g.OpenPopupStack.push_back(popup_ref);
+    }
+    else
+    {
+        // Gently handle the user mistakenly calling OpenPopup() every frame. It is a programming mistake! However, if we were to run the regular code path, the ui
+        // would become completely unusable because the popup will always be in hidden-while-calculating-size state _while_ claiming focus. Which would be a very confusing
+        // situation for the programmer. Instead, we silently allow the popup to proceed, it will keep reappearing and the programming error will be more obvious to understand.
+        if (g.OpenPopupStack[current_stack_size].PopupId == id && g.OpenPopupStack[current_stack_size].OpenFrameCount == g.FrameCount - 1)
+        {
+            g.OpenPopupStack[current_stack_size].OpenFrameCount = popup_ref.OpenFrameCount;
+        }
+        else
+        {
+            // Close child popups if any, then flag popup for open/reopen
+            ClosePopupToLevel(current_stack_size, false);
+            g.OpenPopupStack.push_back(popup_ref);
+        }
+
+        // When reopening a popup we first refocus its parent, otherwise if its parent is itself a popup it would get closed by ClosePopupsOverWindow().
+        // This is equivalent to what ClosePopupToLevel() does.
+        //if (g.OpenPopupStack[current_stack_size].PopupId == id)
+        //    FocusWindow(parent_window);
+    }
+}
+
+// When popups are stacked, clicking on a lower level popups puts focus back to it and close popups above it.
+// This function closes any popups that are over 'ref_window'.
+void ImGui::ClosePopupsOverWindow(ImGuiWindow* ref_window, bool restore_focus_to_window_under_popup)
+{
+    ImGuiContext& g = *GImGui;
+    if (g.OpenPopupStack.Size == 0)
+        return;
+
+    // Don't close our own child popup windows.
+    int popup_count_to_keep = 0;
+    if (ref_window)
+    {
+        // Find the highest popup which is a descendant of the reference window (generally reference window = NavWindow)
+        for (; popup_count_to_keep < g.OpenPopupStack.Size; popup_count_to_keep++)
+        {
+            ImGuiPopupData& popup = g.OpenPopupStack[popup_count_to_keep];
+            if (!popup.Window)
+                continue;
+            IM_ASSERT((popup.Window->Flags & ImGuiWindowFlags_Popup) != 0);
+            if (popup.Window->Flags & ImGuiWindowFlags_ChildWindow)
+                continue;
+
+            // Trim the stack unless the popup is a direct parent of the reference window (the reference window is often the NavWindow)
+            // - With this stack of window, clicking/focusing Popup1 will close Popup2 and Popup3:
+            //     Window -> Popup1 -> Popup2 -> Popup3
+            // - Each popups may contain child windows, which is why we compare ->RootWindow!
+            //     Window -> Popup1 -> Popup1_Child -> Popup2 -> Popup2_Child
+            bool ref_window_is_descendent_of_popup = false;
+            for (int n = popup_count_to_keep; n < g.OpenPopupStack.Size; n++)
+                if (ImGuiWindow* popup_window = g.OpenPopupStack[n].Window)
+                    if (IsWindowWithinBeginStackOf(ref_window, popup_window))
+                    {
+                        ref_window_is_descendent_of_popup = true;
+                        break;
+                    }
+            if (!ref_window_is_descendent_of_popup)
+                break;
+        }
+    }
+    if (popup_count_to_keep < g.OpenPopupStack.Size) // This test is not required but it allows to set a convenient breakpoint on the statement below
+    {
+        IMGUI_DEBUG_LOG_POPUP("[popup] ClosePopupsOverWindow(\"%s\")\n", ref_window ? ref_window->Name : "<NULL>");
+        ClosePopupToLevel(popup_count_to_keep, restore_focus_to_window_under_popup);
+    }
+}
+
+void ImGui::ClosePopupsExceptModals()
+{
+    ImGuiContext& g = *GImGui;
+
+    int popup_count_to_keep;
+    for (popup_count_to_keep = g.OpenPopupStack.Size; popup_count_to_keep > 0; popup_count_to_keep--)
+    {
+        ImGuiWindow* window = g.OpenPopupStack[popup_count_to_keep - 1].Window;
+        if (!window || window->Flags & ImGuiWindowFlags_Modal)
+            break;
+    }
+    if (popup_count_to_keep < g.OpenPopupStack.Size) // This test is not required but it allows to set a convenient breakpoint on the statement below
+        ClosePopupToLevel(popup_count_to_keep, true);
+}
+
+void ImGui::ClosePopupToLevel(int remaining, bool restore_focus_to_window_under_popup)
+{
+    ImGuiContext& g = *GImGui;
+    IMGUI_DEBUG_LOG_POPUP("[popup] ClosePopupToLevel(%d), restore_focus_to_window_under_popup=%d\n", remaining, restore_focus_to_window_under_popup);
+    IM_ASSERT(remaining >= 0 && remaining < g.OpenPopupStack.Size);
+
+    // Trim open popup stack
+    ImGuiWindow* focus_window = g.OpenPopupStack[remaining].SourceWindow;
+    ImGuiWindow* popup_window = g.OpenPopupStack[remaining].Window;
+    g.OpenPopupStack.resize(remaining);
+
+    if (restore_focus_to_window_under_popup)
+    {
+        if (focus_window && !focus_window->WasActive && popup_window)
+        {
+            // Fallback
+            FocusTopMostWindowUnderOne(popup_window, NULL);
+        }
+        else
+        {
+            if (g.NavLayer == ImGuiNavLayer_Main && focus_window)
+                focus_window = NavRestoreLastChildNavWindow(focus_window);
+            FocusWindow(focus_window);
+        }
+    }
+}
+
+// Close the popup we have begin-ed into.
+void ImGui::CloseCurrentPopup()
+{
+    ImGuiContext& g = *GImGui;
+    int popup_idx = g.BeginPopupStack.Size - 1;
+    if (popup_idx < 0 || popup_idx >= g.OpenPopupStack.Size || g.BeginPopupStack[popup_idx].PopupId != g.OpenPopupStack[popup_idx].PopupId)
+        return;
+
+    // Closing a menu closes its top-most parent popup (unless a modal)
+    while (popup_idx > 0)
+    {
+        ImGuiWindow* popup_window = g.OpenPopupStack[popup_idx].Window;
+        ImGuiWindow* parent_popup_window = g.OpenPopupStack[popup_idx - 1].Window;
+        bool close_parent = false;
+        if (popup_window && (popup_window->Flags & ImGuiWindowFlags_ChildMenu))
+            if (parent_popup_window && !(parent_popup_window->Flags & ImGuiWindowFlags_MenuBar))
+                close_parent = true;
+        if (!close_parent)
+            break;
+        popup_idx--;
+    }
+    IMGUI_DEBUG_LOG_POPUP("[popup] CloseCurrentPopup %d -> %d\n", g.BeginPopupStack.Size - 1, popup_idx);
+    ClosePopupToLevel(popup_idx, true);
+
+    // A common pattern is to close a popup when selecting a menu item/selectable that will open another window.
+    // To improve this usage pattern, we avoid nav highlight for a single frame in the parent window.
+    // Similarly, we could avoid mouse hover highlight in this window but it is less visually problematic.
+    if (ImGuiWindow* window = g.NavWindow)
+        window->DC.NavHideHighlightOneFrame = true;
+}
+
+// Attention! BeginPopup() adds default flags which BeginPopupEx()!
+bool ImGui::BeginPopupEx(ImGuiID id, ImGuiWindowFlags flags)
+{
+    ImGuiContext& g = *GImGui;
+    if (!IsPopupOpen(id, ImGuiPopupFlags_None))
+    {
+        g.NextWindowData.ClearFlags(); // We behave like Begin() and need to consume those values
+        return false;
+    }
+
+    char name[20];
+    if (flags & ImGuiWindowFlags_ChildMenu)
+        ImFormatString(name, IM_ARRAYSIZE(name), "##Menu_%02d", g.BeginMenuCount); // Recycle windows based on depth
+    else
+        ImFormatString(name, IM_ARRAYSIZE(name), "##Popup_%08x", id); // Not recycling, so we can close/open during the same frame
+
+    flags |= ImGuiWindowFlags_Popup;
+    bool is_open = Begin(name, NULL, flags);
+    if (!is_open) // NB: Begin can return false when the popup is completely clipped (e.g. zero size display)
+        EndPopup();
+
+    return is_open;
+}
+
+bool ImGui::BeginPopup(const char* str_id, ImGuiWindowFlags flags)
+{
+    ImGuiContext& g = *GImGui;
+    if (g.OpenPopupStack.Size <= g.BeginPopupStack.Size) // Early out for performance
+    {
+        g.NextWindowData.ClearFlags(); // We behave like Begin() and need to consume those values
+        return false;
+    }
+    flags |= ImGuiWindowFlags_AlwaysAutoResize | ImGuiWindowFlags_NoTitleBar | ImGuiWindowFlags_NoSavedSettings;
+    ImGuiID id = g.CurrentWindow->GetID(str_id);
+    return BeginPopupEx(id, flags);
+}
+
+// If 'p_open' is specified for a modal popup window, the popup will have a regular close button which will close the popup.
+// Note that popup visibility status is owned by Dear ImGui (and manipulated with e.g. OpenPopup) so the actual value of *p_open is meaningless here.
+bool ImGui::BeginPopupModal(const char* name, bool* p_open, ImGuiWindowFlags flags)
+{
+    ImGuiContext& g = *GImGui;
+    ImGuiWindow* window = g.CurrentWindow;
+    const ImGuiID id = window->GetID(name);
+    if (!IsPopupOpen(id, ImGuiPopupFlags_None))
+    {
+        g.NextWindowData.ClearFlags(); // We behave like Begin() and need to consume those values
+        return false;
+    }
+
+    // Center modal windows by default for increased visibility
+    // (this won't really last as settings will kick in, and is mostly for backward compatibility. user may do the same themselves)
+    // FIXME: Should test for (PosCond & window->SetWindowPosAllowFlags) with the upcoming window.
+    if ((g.NextWindowData.Flags & ImGuiNextWindowDataFlags_HasPos) == 0)
+    {
+        const ImGuiViewport* viewport = GetMainViewport();
+        SetNextWindowPos(viewport->GetCenter(), ImGuiCond_FirstUseEver, ImVec2(0.5f, 0.5f));
+    }
+
+    flags |= ImGuiWindowFlags_Popup | ImGuiWindowFlags_Modal | ImGuiWindowFlags_NoCollapse;
+    const bool is_open = Begin(name, p_open, flags);
+    if (!is_open || (p_open && !*p_open)) // NB: is_open can be 'false' when the popup is completely clipped (e.g. zero size display)
+    {
+        EndPopup();
+        if (is_open)
+            ClosePopupToLevel(g.BeginPopupStack.Size, true);
+        return false;
+    }
+    return is_open;
+}
+
+void ImGui::EndPopup()
+{
+    ImGuiContext& g = *GImGui;
+    ImGuiWindow* window = g.CurrentWindow;
+    IM_ASSERT(window->Flags & ImGuiWindowFlags_Popup);  // Mismatched BeginPopup()/EndPopup() calls
+    IM_ASSERT(g.BeginPopupStack.Size > 0);
+
+    // Make all menus and popups wrap around for now, may need to expose that policy (e.g. focus scope could include wrap/loop policy flags used by new move requests)
+    if (g.NavWindow == window)
+        NavMoveRequestTryWrapping(window, ImGuiNavMoveFlags_LoopY);
+
+    // Child-popups don't need to be laid out
+    IM_ASSERT(g.WithinEndChild == false);
+    if (window->Flags & ImGuiWindowFlags_ChildWindow)
+        g.WithinEndChild = true;
+    End();
+    g.WithinEndChild = false;
+}
+
+// Helper to open a popup if mouse button is released over the item
+// - This is essentially the same as BeginPopupContextItem() but without the trailing BeginPopup()
+void ImGui::OpenPopupOnItemClick(const char* str_id, ImGuiPopupFlags popup_flags)
+{
+    ImGuiContext& g = *GImGui;
+    ImGuiWindow* window = g.CurrentWindow;
+    int mouse_button = (popup_flags & ImGuiPopupFlags_MouseButtonMask_);
+    if (IsMouseReleased(mouse_button) && IsItemHovered(ImGuiHoveredFlags_AllowWhenBlockedByPopup))
+    {
+        ImGuiID id = str_id ? window->GetID(str_id) : g.LastItemData.ID;    // If user hasn't passed an ID, we can use the LastItemID. Using LastItemID as a Popup ID won't conflict!
+        IM_ASSERT(id != 0);                                             // You cannot pass a NULL str_id if the last item has no identifier (e.g. a Text() item)
+        OpenPopupEx(id, popup_flags);
+    }
+}
+
+// This is a helper to handle the simplest case of associating one named popup to one given widget.
+// - To create a popup associated to the last item, you generally want to pass a NULL value to str_id.
+// - To create a popup with a specific identifier, pass it in str_id.
+//    - This is useful when using using BeginPopupContextItem() on an item which doesn't have an identifier, e.g. a Text() call.
+//    - This is useful when multiple code locations may want to manipulate/open the same popup, given an explicit id.
+// - You may want to handle the whole on user side if you have specific needs (e.g. tweaking IsItemHovered() parameters).
+//   This is essentially the same as:
+//       id = str_id ? GetID(str_id) : GetItemID();
+//       OpenPopupOnItemClick(str_id, ImGuiPopupFlags_MouseButtonRight);
+//       return BeginPopup(id);
+//   Which is essentially the same as:
+//       id = str_id ? GetID(str_id) : GetItemID();
+//       if (IsItemHovered() && IsMouseReleased(ImGuiMouseButton_Right))
+//           OpenPopup(id);
+//       return BeginPopup(id);
+//   The main difference being that this is tweaked to avoid computing the ID twice.
+bool ImGui::BeginPopupContextItem(const char* str_id, ImGuiPopupFlags popup_flags)
+{
+    ImGuiContext& g = *GImGui;
+    ImGuiWindow* window = g.CurrentWindow;
+    if (window->SkipItems)
+        return false;
+    ImGuiID id = str_id ? window->GetID(str_id) : g.LastItemData.ID;    // If user hasn't passed an ID, we can use the LastItemID. Using LastItemID as a Popup ID won't conflict!
+    IM_ASSERT(id != 0);                                             // You cannot pass a NULL str_id if the last item has no identifier (e.g. a Text() item)
+    int mouse_button = (popup_flags & ImGuiPopupFlags_MouseButtonMask_);
+    if (IsMouseReleased(mouse_button) && IsItemHovered(ImGuiHoveredFlags_AllowWhenBlockedByPopup))
+        OpenPopupEx(id, popup_flags);
+    return BeginPopupEx(id, ImGuiWindowFlags_AlwaysAutoResize | ImGuiWindowFlags_NoTitleBar | ImGuiWindowFlags_NoSavedSettings);
+}
+
+bool ImGui::BeginPopupContextWindow(const char* str_id, ImGuiPopupFlags popup_flags)
+{
+    ImGuiContext& g = *GImGui;
+    ImGuiWindow* window = g.CurrentWindow;
+    if (!str_id)
+        str_id = "window_context";
+    ImGuiID id = window->GetID(str_id);
+    int mouse_button = (popup_flags & ImGuiPopupFlags_MouseButtonMask_);
+    if (IsMouseReleased(mouse_button) && IsWindowHovered(ImGuiHoveredFlags_AllowWhenBlockedByPopup))
+        if (!(popup_flags & ImGuiPopupFlags_NoOpenOverItems) || !IsAnyItemHovered())
+            OpenPopupEx(id, popup_flags);
+    return BeginPopupEx(id, ImGuiWindowFlags_AlwaysAutoResize | ImGuiWindowFlags_NoTitleBar | ImGuiWindowFlags_NoSavedSettings);
+}
+
+bool ImGui::BeginPopupContextVoid(const char* str_id, ImGuiPopupFlags popup_flags)
+{
+    ImGuiContext& g = *GImGui;
+    ImGuiWindow* window = g.CurrentWindow;
+    if (!str_id)
+        str_id = "void_context";
+    ImGuiID id = window->GetID(str_id);
+    int mouse_button = (popup_flags & ImGuiPopupFlags_MouseButtonMask_);
+    if (IsMouseReleased(mouse_button) && !IsWindowHovered(ImGuiHoveredFlags_AnyWindow))
+        if (GetTopMostPopupModal() == NULL)
+            OpenPopupEx(id, popup_flags);
+    return BeginPopupEx(id, ImGuiWindowFlags_AlwaysAutoResize | ImGuiWindowFlags_NoTitleBar | ImGuiWindowFlags_NoSavedSettings);
+}
+
+// r_avoid = the rectangle to avoid (e.g. for tooltip it is a rectangle around the mouse cursor which we want to avoid. for popups it's a small point around the cursor.)
+// r_outer = the visible area rectangle, minus safe area padding. If our popup size won't fit because of safe area padding we ignore it.
+// (r_outer is usually equivalent to the viewport rectangle minus padding, but when multi-viewports are enabled and monitor
+//  information are available, it may represent the entire platform monitor from the frame of reference of the current viewport.
+//  this allows us to have tooltips/popups displayed out of the parent viewport.)
+ImVec2 ImGui::FindBestWindowPosForPopupEx(const ImVec2& ref_pos, const ImVec2& size, ImGuiDir* last_dir, const ImRect& r_outer, const ImRect& r_avoid, ImGuiPopupPositionPolicy policy)
+{
+    ImVec2 base_pos_clamped = ImClamp(ref_pos, r_outer.Min, r_outer.Max - size);
+    //GetForegroundDrawList()->AddRect(r_avoid.Min, r_avoid.Max, IM_COL32(255,0,0,255));
+    //GetForegroundDrawList()->AddRect(r_outer.Min, r_outer.Max, IM_COL32(0,255,0,255));
+
+    // Combo Box policy (we want a connecting edge)
+    if (policy == ImGuiPopupPositionPolicy_ComboBox)
+    {
+        const ImGuiDir dir_prefered_order[ImGuiDir_COUNT] = { ImGuiDir_Down, ImGuiDir_Right, ImGuiDir_Left, ImGuiDir_Up };
+        for (int n = (*last_dir != ImGuiDir_None) ? -1 : 0; n < ImGuiDir_COUNT; n++)
+        {
+            const ImGuiDir dir = (n == -1) ? *last_dir : dir_prefered_order[n];
+            if (n != -1 && dir == *last_dir) // Already tried this direction?
+                continue;
+            ImVec2 pos;
+            if (dir == ImGuiDir_Down)  pos = ImVec2(r_avoid.Min.x, r_avoid.Max.y);          // Below, Toward Right (default)
+            if (dir == ImGuiDir_Right) pos = ImVec2(r_avoid.Min.x, r_avoid.Min.y - size.y); // Above, Toward Right
+            if (dir == ImGuiDir_Left)  pos = ImVec2(r_avoid.Max.x - size.x, r_avoid.Max.y); // Below, Toward Left
+            if (dir == ImGuiDir_Up)    pos = ImVec2(r_avoid.Max.x - size.x, r_avoid.Min.y - size.y); // Above, Toward Left
+            if (!r_outer.Contains(ImRect(pos, pos + size)))
+                continue;
+            *last_dir = dir;
+            return pos;
+        }
+    }
+
+    // Tooltip and Default popup policy
+    // (Always first try the direction we used on the last frame, if any)
+    if (policy == ImGuiPopupPositionPolicy_Tooltip || policy == ImGuiPopupPositionPolicy_Default)
+    {
+        const ImGuiDir dir_prefered_order[ImGuiDir_COUNT] = { ImGuiDir_Right, ImGuiDir_Down, ImGuiDir_Up, ImGuiDir_Left };
+        for (int n = (*last_dir != ImGuiDir_None) ? -1 : 0; n < ImGuiDir_COUNT; n++)
+        {
+            const ImGuiDir dir = (n == -1) ? *last_dir : dir_prefered_order[n];
+            if (n != -1 && dir == *last_dir) // Already tried this direction?
+                continue;
+
+            const float avail_w = (dir == ImGuiDir_Left ? r_avoid.Min.x : r_outer.Max.x) - (dir == ImGuiDir_Right ? r_avoid.Max.x : r_outer.Min.x);
+            const float avail_h = (dir == ImGuiDir_Up ? r_avoid.Min.y : r_outer.Max.y) - (dir == ImGuiDir_Down ? r_avoid.Max.y : r_outer.Min.y);
+
+            // If there not enough room on one axis, there's no point in positioning on a side on this axis (e.g. when not enough width, use a top/bottom position to maximize available width)
+            if (avail_w < size.x && (dir == ImGuiDir_Left || dir == ImGuiDir_Right))
+                continue;
+            if (avail_h < size.y && (dir == ImGuiDir_Up || dir == ImGuiDir_Down))
+                continue;
+
+            ImVec2 pos;
+            pos.x = (dir == ImGuiDir_Left) ? r_avoid.Min.x - size.x : (dir == ImGuiDir_Right) ? r_avoid.Max.x : base_pos_clamped.x;
+            pos.y = (dir == ImGuiDir_Up) ? r_avoid.Min.y - size.y : (dir == ImGuiDir_Down) ? r_avoid.Max.y : base_pos_clamped.y;
+
+            // Clamp top-left corner of popup
+            pos.x = ImMax(pos.x, r_outer.Min.x);
+            pos.y = ImMax(pos.y, r_outer.Min.y);
+
+            *last_dir = dir;
+            return pos;
+        }
+    }
+
+    // Fallback when not enough room:
+    *last_dir = ImGuiDir_None;
+
+    // For tooltip we prefer avoiding the cursor at all cost even if it means that part of the tooltip won't be visible.
+    if (policy == ImGuiPopupPositionPolicy_Tooltip)
+        return ref_pos + ImVec2(2, 2);
+
+    // Otherwise try to keep within display
+    ImVec2 pos = ref_pos;
+    pos.x = ImMax(ImMin(pos.x + size.x, r_outer.Max.x) - size.x, r_outer.Min.x);
+    pos.y = ImMax(ImMin(pos.y + size.y, r_outer.Max.y) - size.y, r_outer.Min.y);
+    return pos;
+}
+
+// Note that this is used for popups, which can overlap the non work-area of individual viewports.
+ImRect ImGui::GetPopupAllowedExtentRect(ImGuiWindow* window)
+{
+    ImGuiContext& g = *GImGui;
+    IM_UNUSED(window);
+    ImRect r_screen = ((ImGuiViewportP*)(void*)GetMainViewport())->GetMainRect();
+    ImVec2 padding = g.Style.DisplaySafeAreaPadding;
+    r_screen.Expand(ImVec2((r_screen.GetWidth() > padding.x * 2) ? -padding.x : 0.0f, (r_screen.GetHeight() > padding.y * 2) ? -padding.y : 0.0f));
+    return r_screen;
+}
+
+ImVec2 ImGui::FindBestWindowPosForPopup(ImGuiWindow* window)
+{
+    ImGuiContext& g = *GImGui;
+
+    ImRect r_outer = GetPopupAllowedExtentRect(window);
+    if (window->Flags & ImGuiWindowFlags_ChildMenu)
+    {
+        // Child menus typically request _any_ position within the parent menu item, and then we move the new menu outside the parent bounds.
+        // This is how we end up with child menus appearing (most-commonly) on the right of the parent menu.
+        IM_ASSERT(g.CurrentWindow == window);
+        ImGuiWindow* parent_window = g.CurrentWindowStack[g.CurrentWindowStack.Size - 2].Window;
+        float horizontal_overlap = g.Style.ItemInnerSpacing.x; // We want some overlap to convey the relative depth of each menu (currently the amount of overlap is hard-coded to style.ItemSpacing.x).
+        ImRect r_avoid;
+        if (parent_window->DC.MenuBarAppending)
+            r_avoid = ImRect(-FLT_MAX, parent_window->ClipRect.Min.y, FLT_MAX, parent_window->ClipRect.Max.y); // Avoid parent menu-bar. If we wanted multi-line menu-bar, we may instead want to have the calling window setup e.g. a NextWindowData.PosConstraintAvoidRect field
+        else
+            r_avoid = ImRect(parent_window->Pos.x + horizontal_overlap, -FLT_MAX, parent_window->Pos.x + parent_window->Size.x - horizontal_overlap - parent_window->ScrollbarSizes.x, FLT_MAX);
+        return FindBestWindowPosForPopupEx(window->Pos, window->Size, &window->AutoPosLastDirection, r_outer, r_avoid, ImGuiPopupPositionPolicy_Default);
+    }
+    if (window->Flags & ImGuiWindowFlags_Popup)
+    {
+        return FindBestWindowPosForPopupEx(window->Pos, window->Size, &window->AutoPosLastDirection, r_outer, ImRect(window->Pos, window->Pos), ImGuiPopupPositionPolicy_Default); // Ideally we'd disable r_avoid here
+    }
+    if (window->Flags & ImGuiWindowFlags_Tooltip)
+    {
+        // Position tooltip (always follows mouse)
+        float sc = g.Style.MouseCursorScale;
+        ImVec2 ref_pos = NavCalcPreferredRefPos();
+        ImRect r_avoid;
+        if (!g.NavDisableHighlight && g.NavDisableMouseHover && !(g.IO.ConfigFlags & ImGuiConfigFlags_NavEnableSetMousePos))
+            r_avoid = ImRect(ref_pos.x - 16, ref_pos.y - 8, ref_pos.x + 16, ref_pos.y + 8);
+        else
+            r_avoid = ImRect(ref_pos.x - 16, ref_pos.y - 8, ref_pos.x + 24 * sc, ref_pos.y + 24 * sc); // FIXME: Hard-coded based on mouse cursor shape expectation. Exact dimension not very important.
+        return FindBestWindowPosForPopupEx(ref_pos, window->Size, &window->AutoPosLastDirection, r_outer, r_avoid, ImGuiPopupPositionPolicy_Tooltip);
+    }
+    IM_ASSERT(0);
+    return window->Pos;
+}
+
+//-----------------------------------------------------------------------------
+// [SECTION] KEYBOARD/GAMEPAD NAVIGATION
+//-----------------------------------------------------------------------------
+
+// FIXME-NAV: The existence of SetNavID vs SetFocusID vs FocusWindow() needs to be clarified/reworked.
+// In our terminology those should be interchangeable, yet right now this is super confusing.
+// Those two functions are merely a legacy artifact, so at minimum naming should be clarified.
+
+void ImGui::SetNavWindow(ImGuiWindow* window)
+{
+    ImGuiContext& g = *GImGui;
+    if (g.NavWindow != window)
+    {
+        IMGUI_DEBUG_LOG_FOCUS("[focus] SetNavWindow(\"%s\")\n", window ? window->Name : "<NULL>");
+        g.NavWindow = window;
+    }
+    g.NavInitRequest = g.NavMoveSubmitted = g.NavMoveScoringItems = false;
+    NavUpdateAnyRequestFlag();
+}
+
+void ImGui::SetNavID(ImGuiID id, ImGuiNavLayer nav_layer, ImGuiID focus_scope_id, const ImRect& rect_rel)
+{
+    ImGuiContext& g = *GImGui;
+    IM_ASSERT(g.NavWindow != NULL);
+    IM_ASSERT(nav_layer == ImGuiNavLayer_Main || nav_layer == ImGuiNavLayer_Menu);
+    g.NavId = id;
+    g.NavLayer = nav_layer;
+    g.NavFocusScopeId = focus_scope_id;
+    g.NavWindow->NavLastIds[nav_layer] = id;
+    g.NavWindow->NavRectRel[nav_layer] = rect_rel;
+}
+
+void ImGui::SetFocusID(ImGuiID id, ImGuiWindow* window)
+{
+    ImGuiContext& g = *GImGui;
+    IM_ASSERT(id != 0);
+
+    if (g.NavWindow != window)
+       SetNavWindow(window);
+
+    // Assume that SetFocusID() is called in the context where its window->DC.NavLayerCurrent and window->DC.NavFocusScopeIdCurrent are valid.
+    // Note that window may be != g.CurrentWindow (e.g. SetFocusID call in InputTextEx for multi-line text)
+    const ImGuiNavLayer nav_layer = window->DC.NavLayerCurrent;
+    g.NavId = id;
+    g.NavLayer = nav_layer;
+    g.NavFocusScopeId = window->DC.NavFocusScopeIdCurrent;
+    window->NavLastIds[nav_layer] = id;
+    if (g.LastItemData.ID == id)
+        window->NavRectRel[nav_layer] = WindowRectAbsToRel(window, g.LastItemData.NavRect);
+
+    if (g.ActiveIdSource == ImGuiInputSource_Nav)
+        g.NavDisableMouseHover = true;
+    else
+        g.NavDisableHighlight = true;
+}
+
+ImGuiDir ImGetDirQuadrantFromDelta(float dx, float dy)
+{
+    if (ImFabs(dx) > ImFabs(dy))
+        return (dx > 0.0f) ? ImGuiDir_Right : ImGuiDir_Left;
+    return (dy > 0.0f) ? ImGuiDir_Down : ImGuiDir_Up;
+}
+
+static float inline NavScoreItemDistInterval(float a0, float a1, float b0, float b1)
+{
+    if (a1 < b0)
+        return a1 - b0;
+    if (b1 < a0)
+        return a0 - b1;
+    return 0.0f;
+}
+
+static void inline NavClampRectToVisibleAreaForMoveDir(ImGuiDir move_dir, ImRect& r, const ImRect& clip_rect)
+{
+    if (move_dir == ImGuiDir_Left || move_dir == ImGuiDir_Right)
+    {
+        r.Min.y = ImClamp(r.Min.y, clip_rect.Min.y, clip_rect.Max.y);
+        r.Max.y = ImClamp(r.Max.y, clip_rect.Min.y, clip_rect.Max.y);
+    }
+    else // FIXME: PageUp/PageDown are leaving move_dir == None
+    {
+        r.Min.x = ImClamp(r.Min.x, clip_rect.Min.x, clip_rect.Max.x);
+        r.Max.x = ImClamp(r.Max.x, clip_rect.Min.x, clip_rect.Max.x);
+    }
+}
+
+// Scoring function for gamepad/keyboard directional navigation. Based on https://gist.github.com/rygorous/6981057
+static bool ImGui::NavScoreItem(ImGuiNavItemData* result)
+{
+    ImGuiContext& g = *GImGui;
+    ImGuiWindow* window = g.CurrentWindow;
+    if (g.NavLayer != window->DC.NavLayerCurrent)
+        return false;
+
+    // FIXME: Those are not good variables names
+    ImRect cand = g.LastItemData.NavRect;   // Current item nav rectangle
+    const ImRect curr = g.NavScoringRect;   // Current modified source rect (NB: we've applied Max.x = Min.x in NavUpdate() to inhibit the effect of having varied item width)
+    g.NavScoringDebugCount++;
+
+    // When entering through a NavFlattened border, we consider child window items as fully clipped for scoring
+    if (window->ParentWindow == g.NavWindow)
+    {
+        IM_ASSERT((window->Flags | g.NavWindow->Flags) & ImGuiWindowFlags_NavFlattened);
+        if (!window->ClipRect.Overlaps(cand))
+            return false;
+        cand.ClipWithFull(window->ClipRect); // This allows the scored item to not overlap other candidates in the parent window
+    }
+
+    // We perform scoring on items bounding box clipped by the current clipping rectangle on the other axis (clipping on our movement axis would give us equal scores for all clipped items)
+    // For example, this ensure that items in one column are not reached when moving vertically from items in another column.
+    NavClampRectToVisibleAreaForMoveDir(g.NavMoveClipDir, cand, window->ClipRect);
+
+    // Compute distance between boxes
+    // FIXME-NAV: Introducing biases for vertical navigation, needs to be removed.
+    float dbx = NavScoreItemDistInterval(cand.Min.x, cand.Max.x, curr.Min.x, curr.Max.x);
+    float dby = NavScoreItemDistInterval(ImLerp(cand.Min.y, cand.Max.y, 0.2f), ImLerp(cand.Min.y, cand.Max.y, 0.8f), ImLerp(curr.Min.y, curr.Max.y, 0.2f), ImLerp(curr.Min.y, curr.Max.y, 0.8f)); // Scale down on Y to keep using box-distance for vertically touching items
+    if (dby != 0.0f && dbx != 0.0f)
+        dbx = (dbx / 1000.0f) + ((dbx > 0.0f) ? +1.0f : -1.0f);
+    float dist_box = ImFabs(dbx) + ImFabs(dby);
+
+    // Compute distance between centers (this is off by a factor of 2, but we only compare center distances with each other so it doesn't matter)
+    float dcx = (cand.Min.x + cand.Max.x) - (curr.Min.x + curr.Max.x);
+    float dcy = (cand.Min.y + cand.Max.y) - (curr.Min.y + curr.Max.y);
+    float dist_center = ImFabs(dcx) + ImFabs(dcy); // L1 metric (need this for our connectedness guarantee)
+
+    // Determine which quadrant of 'curr' our candidate item 'cand' lies in based on distance
+    ImGuiDir quadrant;
+    float dax = 0.0f, day = 0.0f, dist_axial = 0.0f;
+    if (dbx != 0.0f || dby != 0.0f)
+    {
+        // For non-overlapping boxes, use distance between boxes
+        dax = dbx;
+        day = dby;
+        dist_axial = dist_box;
+        quadrant = ImGetDirQuadrantFromDelta(dbx, dby);
+    }
+    else if (dcx != 0.0f || dcy != 0.0f)
+    {
+        // For overlapping boxes with different centers, use distance between centers
+        dax = dcx;
+        day = dcy;
+        dist_axial = dist_center;
+        quadrant = ImGetDirQuadrantFromDelta(dcx, dcy);
+    }
+    else
+    {
+        // Degenerate case: two overlapping buttons with same center, break ties arbitrarily (note that LastItemId here is really the _previous_ item order, but it doesn't matter)
+        quadrant = (g.LastItemData.ID < g.NavId) ? ImGuiDir_Left : ImGuiDir_Right;
+    }
+
+#if IMGUI_DEBUG_NAV_SCORING
+    char buf[128];
+    if (IsMouseHoveringRect(cand.Min, cand.Max))
+    {
+        ImFormatString(buf, IM_ARRAYSIZE(buf), "dbox (%.2f,%.2f->%.4f)\ndcen (%.2f,%.2f->%.4f)\nd (%.2f,%.2f->%.4f)\nnav %c, quadrant %c", dbx, dby, dist_box, dcx, dcy, dist_center, dax, day, dist_axial, "WENS"[g.NavMoveDir], "WENS"[quadrant]);
+        ImDrawList* draw_list = GetForegroundDrawList(window);
+        draw_list->AddRect(curr.Min, curr.Max, IM_COL32(255,200,0,100));
+        draw_list->AddRect(cand.Min, cand.Max, IM_COL32(255,255,0,200));
+        draw_list->AddRectFilled(cand.Max - ImVec2(4, 4), cand.Max + CalcTextSize(buf) + ImVec2(4, 4), IM_COL32(40,0,0,150));
+        draw_list->AddText(cand.Max, ~0U, buf);
+    }
+    else if (g.IO.KeyCtrl) // Hold to preview score in matching quadrant. Press C to rotate.
+    {
+        if (quadrant == g.NavMoveDir)
+        {
+            ImFormatString(buf, IM_ARRAYSIZE(buf), "%.0f/%.0f", dist_box, dist_center);
+            ImDrawList* draw_list = GetForegroundDrawList(window);
+            draw_list->AddRectFilled(cand.Min, cand.Max, IM_COL32(255, 0, 0, 200));
+            draw_list->AddText(cand.Min, IM_COL32(255, 255, 255, 255), buf);
+        }
+    }
+#endif
+
+    // Is it in the quadrant we're interesting in moving to?
+    bool new_best = false;
+    const ImGuiDir move_dir = g.NavMoveDir;
+    if (quadrant == move_dir)
+    {
+        // Does it beat the current best candidate?
+        if (dist_box < result->DistBox)
+        {
+            result->DistBox = dist_box;
+            result->DistCenter = dist_center;
+            return true;
+        }
+        if (dist_box == result->DistBox)
+        {
+            // Try using distance between center points to break ties
+            if (dist_center < result->DistCenter)
+            {
+                result->DistCenter = dist_center;
+                new_best = true;
+            }
+            else if (dist_center == result->DistCenter)
+            {
+                // Still tied! we need to be extra-careful to make sure everything gets linked properly. We consistently break ties by symbolically moving "later" items
+                // (with higher index) to the right/downwards by an infinitesimal amount since we the current "best" button already (so it must have a lower index),
+                // this is fairly easy. This rule ensures that all buttons with dx==dy==0 will end up being linked in order of appearance along the x axis.
+                if (((move_dir == ImGuiDir_Up || move_dir == ImGuiDir_Down) ? dby : dbx) < 0.0f) // moving bj to the right/down decreases distance
+                    new_best = true;
+            }
+        }
+    }
+
+    // Axial check: if 'curr' has no link at all in some direction and 'cand' lies roughly in that direction, add a tentative link. This will only be kept if no "real" matches
+    // are found, so it only augments the graph produced by the above method using extra links. (important, since it doesn't guarantee strong connectedness)
+    // This is just to avoid buttons having no links in a particular direction when there's a suitable neighbor. you get good graphs without this too.
+    // 2017/09/29: FIXME: This now currently only enabled inside menu bars, ideally we'd disable it everywhere. Menus in particular need to catch failure. For general navigation it feels awkward.
+    // Disabling it may lead to disconnected graphs when nodes are very spaced out on different axis. Perhaps consider offering this as an option?
+    if (result->DistBox == FLT_MAX && dist_axial < result->DistAxial)  // Check axial match
+        if (g.NavLayer == ImGuiNavLayer_Menu && !(g.NavWindow->Flags & ImGuiWindowFlags_ChildMenu))
+            if ((move_dir == ImGuiDir_Left && dax < 0.0f) || (move_dir == ImGuiDir_Right && dax > 0.0f) || (move_dir == ImGuiDir_Up && day < 0.0f) || (move_dir == ImGuiDir_Down && day > 0.0f))
+            {
+                result->DistAxial = dist_axial;
+                new_best = true;
+            }
+
+    return new_best;
+}
+
+static void ImGui::NavApplyItemToResult(ImGuiNavItemData* result)
+{
+    ImGuiContext& g = *GImGui;
+    ImGuiWindow* window = g.CurrentWindow;
+    result->Window = window;
+    result->ID = g.LastItemData.ID;
+    result->FocusScopeId = window->DC.NavFocusScopeIdCurrent;
+    result->InFlags = g.LastItemData.InFlags;
+    result->RectRel = WindowRectAbsToRel(window, g.LastItemData.NavRect);
+}
+
+// We get there when either NavId == id, or when g.NavAnyRequest is set (which is updated by NavUpdateAnyRequestFlag above)
+// This is called after LastItemData is set.
+static void ImGui::NavProcessItem()
+{
+    ImGuiContext& g = *GImGui;
+    ImGuiWindow* window = g.CurrentWindow;
+    const ImGuiID id = g.LastItemData.ID;
+    const ImRect nav_bb = g.LastItemData.NavRect;
+    const ImGuiItemFlags item_flags = g.LastItemData.InFlags;
+
+    // Process Init Request
+    if (g.NavInitRequest && g.NavLayer == window->DC.NavLayerCurrent && (item_flags & ImGuiItemFlags_Disabled) == 0)
+    {
+        // Even if 'ImGuiItemFlags_NoNavDefaultFocus' is on (typically collapse/close button) we record the first ResultId so they can be used as a fallback
+        const bool candidate_for_nav_default_focus = (item_flags & ImGuiItemFlags_NoNavDefaultFocus) == 0;
+        if (candidate_for_nav_default_focus || g.NavInitResultId == 0)
+        {
+            g.NavInitResultId = id;
+            g.NavInitResultRectRel = WindowRectAbsToRel(window, nav_bb);
+        }
+        if (candidate_for_nav_default_focus)
+        {
+            g.NavInitRequest = false; // Found a match, clear request
+            NavUpdateAnyRequestFlag();
+        }
+    }
+
+    // Process Move Request (scoring for navigation)
+    // FIXME-NAV: Consider policy for double scoring (scoring from NavScoringRect + scoring from a rect wrapped according to current wrapping policy)
+    if (g.NavMoveScoringItems)
+    {
+        const bool is_tab_stop = (item_flags & ImGuiItemFlags_Inputable) && (item_flags & (ImGuiItemFlags_NoTabStop | ImGuiItemFlags_Disabled)) == 0;
+        const bool is_tabbing = (g.NavMoveFlags & ImGuiNavMoveFlags_Tabbing) != 0;
+        if (is_tabbing)
+        {
+            if (is_tab_stop || (g.NavMoveFlags & ImGuiNavMoveFlags_FocusApi))
+                NavProcessItemForTabbingRequest(id);
+        }
+        else if ((g.NavId != id || (g.NavMoveFlags & ImGuiNavMoveFlags_AllowCurrentNavId)) && !(item_flags & (ImGuiItemFlags_Disabled | ImGuiItemFlags_NoNav)))
+        {
+            ImGuiNavItemData* result = (window == g.NavWindow) ? &g.NavMoveResultLocal : &g.NavMoveResultOther;
+            if (!is_tabbing)
+            {
+                if (NavScoreItem(result))
+                    NavApplyItemToResult(result);
+
+                // Features like PageUp/PageDown need to maintain a separate score for the visible set of items.
+                const float VISIBLE_RATIO = 0.70f;
+                if ((g.NavMoveFlags & ImGuiNavMoveFlags_AlsoScoreVisibleSet) && window->ClipRect.Overlaps(nav_bb))
+                    if (ImClamp(nav_bb.Max.y, window->ClipRect.Min.y, window->ClipRect.Max.y) - ImClamp(nav_bb.Min.y, window->ClipRect.Min.y, window->ClipRect.Max.y) >= (nav_bb.Max.y - nav_bb.Min.y) * VISIBLE_RATIO)
+                        if (NavScoreItem(&g.NavMoveResultLocalVisible))
+                            NavApplyItemToResult(&g.NavMoveResultLocalVisible);
+            }
+        }
+    }
+
+    // Update window-relative bounding box of navigated item
+    if (g.NavId == id)
+    {
+        if (g.NavWindow != window)
+            SetNavWindow(window); // Always refresh g.NavWindow, because some operations such as FocusItem() may not have a window.
+        g.NavLayer = window->DC.NavLayerCurrent;
+        g.NavFocusScopeId = window->DC.NavFocusScopeIdCurrent;
+        g.NavIdIsAlive = true;
+        window->NavRectRel[window->DC.NavLayerCurrent] = WindowRectAbsToRel(window, nav_bb);    // Store item bounding box (relative to window position)
+    }
+}
+
+// Handle "scoring" of an item for a tabbing/focusing request initiated by NavUpdateCreateTabbingRequest().
+// Note that SetKeyboardFocusHere() API calls are considered tabbing requests!
+// - Case 1: no nav/active id:    set result to first eligible item, stop storing.
+// - Case 2: tab forward:         on ref id set counter, on counter elapse store result
+// - Case 3: tab forward wrap:    set result to first eligible item (preemptively), on ref id set counter, on next frame if counter hasn't elapsed store result. // FIXME-TABBING: Could be done as a next-frame forwarded request
+// - Case 4: tab backward:        store all results, on ref id pick prev, stop storing
+// - Case 5: tab backward wrap:   store all results, on ref id if no result keep storing until last // FIXME-TABBING: Could be done as next-frame forwarded requested
+void ImGui::NavProcessItemForTabbingRequest(ImGuiID id)
+{
+    ImGuiContext& g = *GImGui;
+
+    // Always store in NavMoveResultLocal (unlike directional request which uses NavMoveResultOther on sibling/flattened windows)
+    ImGuiNavItemData* result = &g.NavMoveResultLocal;
+    if (g.NavTabbingDir == +1)
+    {
+        // Tab Forward or SetKeyboardFocusHere() with >= 0
+        if (g.NavTabbingResultFirst.ID == 0)
+            NavApplyItemToResult(&g.NavTabbingResultFirst);
+        if (--g.NavTabbingCounter == 0)
+            NavMoveRequestResolveWithLastItem(result);
+        else if (g.NavId == id)
+            g.NavTabbingCounter = 1;
+    }
+    else if (g.NavTabbingDir == -1)
+    {
+        // Tab Backward
+        if (g.NavId == id)
+        {
+            if (result->ID)
+            {
+                g.NavMoveScoringItems = false;
+                NavUpdateAnyRequestFlag();
+            }
+        }
+        else
+        {
+            NavApplyItemToResult(result);
+        }
+    }
+    else if (g.NavTabbingDir == 0)
+    {
+        // Tab Init
+        if (g.NavTabbingResultFirst.ID == 0)
+            NavMoveRequestResolveWithLastItem(&g.NavTabbingResultFirst);
+    }
+}
+
+bool ImGui::NavMoveRequestButNoResultYet()
+{
+    ImGuiContext& g = *GImGui;
+    return g.NavMoveScoringItems && g.NavMoveResultLocal.ID == 0 && g.NavMoveResultOther.ID == 0;
+}
+
+// FIXME: ScoringRect is not set
+void ImGui::NavMoveRequestSubmit(ImGuiDir move_dir, ImGuiDir clip_dir, ImGuiNavMoveFlags move_flags, ImGuiScrollFlags scroll_flags)
+{
+    ImGuiContext& g = *GImGui;
+    IM_ASSERT(g.NavWindow != NULL);
+
+    if (move_flags & ImGuiNavMoveFlags_Tabbing)
+        move_flags |= ImGuiNavMoveFlags_AllowCurrentNavId;
+
+    g.NavMoveSubmitted = g.NavMoveScoringItems = true;
+    g.NavMoveDir = move_dir;
+    g.NavMoveDirForDebug = move_dir;
+    g.NavMoveClipDir = clip_dir;
+    g.NavMoveFlags = move_flags;
+    g.NavMoveScrollFlags = scroll_flags;
+    g.NavMoveForwardToNextFrame = false;
+    g.NavMoveKeyMods = g.IO.KeyMods;
+    g.NavMoveResultLocal.Clear();
+    g.NavMoveResultLocalVisible.Clear();
+    g.NavMoveResultOther.Clear();
+    g.NavTabbingCounter = 0;
+    g.NavTabbingResultFirst.Clear();
+    NavUpdateAnyRequestFlag();
+}
+
+void ImGui::NavMoveRequestResolveWithLastItem(ImGuiNavItemData* result)
+{
+    ImGuiContext& g = *GImGui;
+    g.NavMoveScoringItems = false; // Ensure request doesn't need more processing
+    NavApplyItemToResult(result);
+    NavUpdateAnyRequestFlag();
+}
+
+void ImGui::NavMoveRequestCancel()
+{
+    ImGuiContext& g = *GImGui;
+    g.NavMoveSubmitted = g.NavMoveScoringItems = false;
+    NavUpdateAnyRequestFlag();
+}
+
+// Forward will reuse the move request again on the next frame (generally with modifications done to it)
+void ImGui::NavMoveRequestForward(ImGuiDir move_dir, ImGuiDir clip_dir, ImGuiNavMoveFlags move_flags, ImGuiScrollFlags scroll_flags)
+{
+    ImGuiContext& g = *GImGui;
+    IM_ASSERT(g.NavMoveForwardToNextFrame == false);
+    NavMoveRequestCancel();
+    g.NavMoveForwardToNextFrame = true;
+    g.NavMoveDir = move_dir;
+    g.NavMoveClipDir = clip_dir;
+    g.NavMoveFlags = move_flags | ImGuiNavMoveFlags_Forwarded;
+    g.NavMoveScrollFlags = scroll_flags;
+}
+
+// Navigation wrap-around logic is delayed to the end of the frame because this operation is only valid after entire
+// popup is assembled and in case of appended popups it is not clear which EndPopup() call is final.
+void ImGui::NavMoveRequestTryWrapping(ImGuiWindow* window, ImGuiNavMoveFlags wrap_flags)
+{
+    ImGuiContext& g = *GImGui;
+    IM_ASSERT(wrap_flags != 0); // Call with _WrapX, _WrapY, _LoopX, _LoopY
+    // In theory we should test for NavMoveRequestButNoResultYet() but there's no point doing it, NavEndFrame() will do the same test
+    if (g.NavWindow == window && g.NavMoveScoringItems && g.NavLayer == ImGuiNavLayer_Main)
+        g.NavMoveFlags |= wrap_flags;
+}
+
+// FIXME: This could be replaced by updating a frame number in each window when (window == NavWindow) and (NavLayer == 0).
+// This way we could find the last focused window among our children. It would be much less confusing this way?
+static void ImGui::NavSaveLastChildNavWindowIntoParent(ImGuiWindow* nav_window)
+{
+    ImGuiWindow* parent = nav_window;
+    while (parent && parent->RootWindow != parent && (parent->Flags & (ImGuiWindowFlags_Popup | ImGuiWindowFlags_ChildMenu)) == 0)
+        parent = parent->ParentWindow;
+    if (parent && parent != nav_window)
+        parent->NavLastChildNavWindow = nav_window;
+}
+
+// Restore the last focused child.
+// Call when we are expected to land on the Main Layer (0) after FocusWindow()
+static ImGuiWindow* ImGui::NavRestoreLastChildNavWindow(ImGuiWindow* window)
+{
+    if (window->NavLastChildNavWindow && window->NavLastChildNavWindow->WasActive)
+        return window->NavLastChildNavWindow;
+    return window;
+}
+
+void ImGui::NavRestoreLayer(ImGuiNavLayer layer)
+{
+    ImGuiContext& g = *GImGui;
+    if (layer == ImGuiNavLayer_Main)
+    {
+        ImGuiWindow* prev_nav_window = g.NavWindow;
+        g.NavWindow = NavRestoreLastChildNavWindow(g.NavWindow);    // FIXME-NAV: Should clear ongoing nav requests?
+        if (prev_nav_window)
+            IMGUI_DEBUG_LOG_FOCUS("[focus] NavRestoreLayer: from \"%s\" to SetNavWindow(\"%s\")\n", prev_nav_window->Name, g.NavWindow->Name);
+    }
+    ImGuiWindow* window = g.NavWindow;
+    if (window->NavLastIds[layer] != 0)
+    {
+        SetNavID(window->NavLastIds[layer], layer, 0, window->NavRectRel[layer]);
+    }
+    else
+    {
+        g.NavLayer = layer;
+        NavInitWindow(window, true);
+    }
+}
+
+void ImGui::NavRestoreHighlightAfterMove()
+{
+    ImGuiContext& g = *GImGui;
+    g.NavDisableHighlight = false;
+    g.NavDisableMouseHover = g.NavMousePosDirty = true;
+}
+
+static inline void ImGui::NavUpdateAnyRequestFlag()
+{
+    ImGuiContext& g = *GImGui;
+    g.NavAnyRequest = g.NavMoveScoringItems || g.NavInitRequest || (IMGUI_DEBUG_NAV_SCORING && g.NavWindow != NULL);
+    if (g.NavAnyRequest)
+        IM_ASSERT(g.NavWindow != NULL);
+}
+
+// This needs to be called before we submit any widget (aka in or before Begin)
+void ImGui::NavInitWindow(ImGuiWindow* window, bool force_reinit)
+{
+    ImGuiContext& g = *GImGui;
+    IM_ASSERT(window == g.NavWindow);
+
+    if (window->Flags & ImGuiWindowFlags_NoNavInputs)
+    {
+        g.NavId = g.NavFocusScopeId = 0;
+        return;
+    }
+
+    bool init_for_nav = false;
+    if (window == window->RootWindow || (window->Flags & ImGuiWindowFlags_Popup) || (window->NavLastIds[0] == 0) || force_reinit)
+        init_for_nav = true;
+    IMGUI_DEBUG_LOG_NAV("[nav] NavInitRequest: from NavInitWindow(), init_for_nav=%d, window=\"%s\", layer=%d\n", init_for_nav, window->Name, g.NavLayer);
+    if (init_for_nav)
+    {
+        SetNavID(0, g.NavLayer, 0, ImRect());
+        g.NavInitRequest = true;
+        g.NavInitRequestFromMove = false;
+        g.NavInitResultId = 0;
+        g.NavInitResultRectRel = ImRect();
+        NavUpdateAnyRequestFlag();
+    }
+    else
+    {
+        g.NavId = window->NavLastIds[0];
+        g.NavFocusScopeId = 0;
+    }
+}
+
+static ImVec2 ImGui::NavCalcPreferredRefPos()
+{
+    ImGuiContext& g = *GImGui;
+    ImGuiWindow* window = g.NavWindow;
+    if (g.NavDisableHighlight || !g.NavDisableMouseHover || !window)
+    {
+        // Mouse (we need a fallback in case the mouse becomes invalid after being used)
+        // The +1.0f offset when stored by OpenPopupEx() allows reopening this or another popup (same or another mouse button) while not moving the mouse, it is pretty standard.
+        // In theory we could move that +1.0f offset in OpenPopupEx()
+        ImVec2 p = IsMousePosValid(&g.IO.MousePos) ? g.IO.MousePos : g.MouseLastValidPos;
+        return ImVec2(p.x + 1.0f, p.y);
+    }
+    else
+    {
+        // When navigation is active and mouse is disabled, pick a position around the bottom left of the currently navigated item
+        // Take account of upcoming scrolling (maybe set mouse pos should be done in EndFrame?)
+        ImRect rect_rel = WindowRectRelToAbs(window, window->NavRectRel[g.NavLayer]);
+        if (window->LastFrameActive != g.FrameCount && (window->ScrollTarget.x != FLT_MAX || window->ScrollTarget.y != FLT_MAX))
+        {
+            ImVec2 next_scroll = CalcNextScrollFromScrollTargetAndClamp(window);
+            rect_rel.Translate(window->Scroll - next_scroll);
+        }
+        ImVec2 pos = ImVec2(rect_rel.Min.x + ImMin(g.Style.FramePadding.x * 4, rect_rel.GetWidth()), rect_rel.Max.y - ImMin(g.Style.FramePadding.y, rect_rel.GetHeight()));
+        ImGuiViewport* viewport = GetMainViewport();
+        return ImFloor(ImClamp(pos, viewport->Pos, viewport->Pos + viewport->Size)); // ImFloor() is important because non-integer mouse position application in backend might be lossy and result in undesirable non-zero delta.
+    }
+}
+
+const char* ImGui::GetNavInputName(ImGuiNavInput n)
+{
+    static const char* names[] =
+    {
+        "Activate", "Cancel", "Input", "Menu", "DpadLeft", "DpadRight", "DpadUp", "DpadDown", "LStickLeft", "LStickRight", "LStickUp", "LStickDown",
+        "FocusPrev", "FocusNext", "TweakSlow", "TweakFast", "KeyLeft", "KeyRight", "KeyUp", "KeyDown"
+    };
+    IM_ASSERT(IM_ARRAYSIZE(names) == ImGuiNavInput_COUNT);
+    IM_ASSERT(n >= 0 && n < ImGuiNavInput_COUNT);
+    return names[n];
+}
+
+float ImGui::GetNavInputAmount(ImGuiNavInput n, ImGuiNavReadMode mode)
+{
+    ImGuiContext& g = *GImGui;
+    if (mode == ImGuiNavReadMode_Down)
+        return g.IO.NavInputs[n];                         // Instant, read analog input (0.0f..1.0f, as provided by user)
+
+    const float t = g.IO.NavInputsDownDuration[n];
+    if (t < 0.0f && mode == ImGuiNavReadMode_Released)  // Return 1.0f when just released, no repeat, ignore analog input.
+        return (g.IO.NavInputsDownDurationPrev[n] >= 0.0f ? 1.0f : 0.0f);
+    if (t < 0.0f)
+        return 0.0f;
+    if (mode == ImGuiNavReadMode_Pressed)               // Return 1.0f when just pressed, no repeat, ignore analog input.
+        return (t == 0.0f) ? 1.0f : 0.0f;
+    if (mode == ImGuiNavReadMode_Repeat)
+        return (float)CalcTypematicRepeatAmount(t - g.IO.DeltaTime, t, g.IO.KeyRepeatDelay * 0.72f, g.IO.KeyRepeatRate * 0.80f);
+    if (mode == ImGuiNavReadMode_RepeatSlow)
+        return (float)CalcTypematicRepeatAmount(t - g.IO.DeltaTime, t, g.IO.KeyRepeatDelay * 1.25f, g.IO.KeyRepeatRate * 2.00f);
+    if (mode == ImGuiNavReadMode_RepeatFast)
+        return (float)CalcTypematicRepeatAmount(t - g.IO.DeltaTime, t, g.IO.KeyRepeatDelay * 0.72f, g.IO.KeyRepeatRate * 0.30f);
+    return 0.0f;
+}
+
+ImVec2 ImGui::GetNavInputAmount2d(ImGuiNavDirSourceFlags dir_sources, ImGuiNavReadMode mode, float slow_factor, float fast_factor)
+{
+    ImVec2 delta(0.0f, 0.0f);
+    if (dir_sources & ImGuiNavDirSourceFlags_RawKeyboard)
+        delta += ImVec2((float)IsKeyDown(ImGuiKey_RightArrow) - (float)IsKeyDown(ImGuiKey_LeftArrow), (float)IsKeyDown(ImGuiKey_DownArrow) - (float)IsKeyDown(ImGuiKey_UpArrow));
+    if (dir_sources & ImGuiNavDirSourceFlags_Keyboard)
+        delta += ImVec2(GetNavInputAmount(ImGuiNavInput_KeyRight_, mode)   - GetNavInputAmount(ImGuiNavInput_KeyLeft_,   mode), GetNavInputAmount(ImGuiNavInput_KeyDown_,   mode) - GetNavInputAmount(ImGuiNavInput_KeyUp_,   mode));
+    if (dir_sources & ImGuiNavDirSourceFlags_PadDPad)
+        delta += ImVec2(GetNavInputAmount(ImGuiNavInput_DpadRight, mode)   - GetNavInputAmount(ImGuiNavInput_DpadLeft,   mode), GetNavInputAmount(ImGuiNavInput_DpadDown,   mode) - GetNavInputAmount(ImGuiNavInput_DpadUp,   mode));
+    if (dir_sources & ImGuiNavDirSourceFlags_PadLStick)
+        delta += ImVec2(GetNavInputAmount(ImGuiNavInput_LStickRight, mode) - GetNavInputAmount(ImGuiNavInput_LStickLeft, mode), GetNavInputAmount(ImGuiNavInput_LStickDown, mode) - GetNavInputAmount(ImGuiNavInput_LStickUp, mode));
+    if (slow_factor != 0.0f && IsNavInputDown(ImGuiNavInput_TweakSlow))
+        delta *= slow_factor;
+    if (fast_factor != 0.0f && IsNavInputDown(ImGuiNavInput_TweakFast))
+        delta *= fast_factor;
+    return delta;
+}
+
+static void ImGui::NavUpdate()
+{
+    ImGuiContext& g = *GImGui;
+    ImGuiIO& io = g.IO;
+
+    io.WantSetMousePos = false;
+    //if (g.NavScoringDebugCount > 0) IMGUI_DEBUG_LOG_NAV("[nav] NavScoringDebugCount %d for '%s' layer %d (Init:%d, Move:%d)\n", g.NavScoringDebugCount, g.NavWindow ? g.NavWindow->Name : "NULL", g.NavLayer, g.NavInitRequest || g.NavInitResultId != 0, g.NavMoveRequest);
+
+    // Update Gamepad->Nav inputs mapping
+    // Set input source as Gamepad when buttons are pressed (as some features differs when used with Gamepad vs Keyboard)
+    const bool nav_gamepad_active = (io.ConfigFlags & ImGuiConfigFlags_NavEnableGamepad) != 0 && (io.BackendFlags & ImGuiBackendFlags_HasGamepad) != 0;
+    if (nav_gamepad_active && g.IO.BackendUsingLegacyNavInputArray == false)
+    {
+        for (int n = 0; n < ImGuiNavInput_COUNT; n++)
+            IM_ASSERT(io.NavInputs[n] == 0.0f && "Backend needs to either only use io.AddKeyEvent()/io.AddKeyAnalogEvent(), either only fill legacy io.NavInputs[]. Not both!");
+        #define NAV_MAP_KEY(_KEY, _NAV_INPUT, _ACTIVATE_NAV)  do { io.NavInputs[_NAV_INPUT] = io.KeysData[_KEY - ImGuiKey_KeysData_OFFSET].AnalogValue; if (_ACTIVATE_NAV && io.NavInputs[_NAV_INPUT] > 0.0f) { g.NavInputSource = ImGuiInputSource_Gamepad; } } while (0)
+        NAV_MAP_KEY(ImGuiKey_GamepadFaceDown, ImGuiNavInput_Activate, true);
+        NAV_MAP_KEY(ImGuiKey_GamepadFaceRight, ImGuiNavInput_Cancel, true);
+        NAV_MAP_KEY(ImGuiKey_GamepadFaceLeft, ImGuiNavInput_Menu, true);
+        NAV_MAP_KEY(ImGuiKey_GamepadFaceUp, ImGuiNavInput_Input, true);
+        NAV_MAP_KEY(ImGuiKey_GamepadDpadLeft, ImGuiNavInput_DpadLeft, true);
+        NAV_MAP_KEY(ImGuiKey_GamepadDpadRight, ImGuiNavInput_DpadRight, true);
+        NAV_MAP_KEY(ImGuiKey_GamepadDpadUp, ImGuiNavInput_DpadUp, true);
+        NAV_MAP_KEY(ImGuiKey_GamepadDpadDown, ImGuiNavInput_DpadDown, true);
+        NAV_MAP_KEY(ImGuiKey_GamepadL1, ImGuiNavInput_FocusPrev, false);
+        NAV_MAP_KEY(ImGuiKey_GamepadR1, ImGuiNavInput_FocusNext, false);
+        NAV_MAP_KEY(ImGuiKey_GamepadL1, ImGuiNavInput_TweakSlow, false);
+        NAV_MAP_KEY(ImGuiKey_GamepadR1, ImGuiNavInput_TweakFast, false);
+        NAV_MAP_KEY(ImGuiKey_GamepadLStickLeft, ImGuiNavInput_LStickLeft, false);
+        NAV_MAP_KEY(ImGuiKey_GamepadLStickRight, ImGuiNavInput_LStickRight, false);
+        NAV_MAP_KEY(ImGuiKey_GamepadLStickUp, ImGuiNavInput_LStickUp, false);
+        NAV_MAP_KEY(ImGuiKey_GamepadLStickDown, ImGuiNavInput_LStickDown, false);
+        #undef NAV_MAP_KEY
+    }
+
+    // Update Keyboard->Nav inputs mapping
+    const bool nav_keyboard_active = (io.ConfigFlags & ImGuiConfigFlags_NavEnableKeyboard) != 0;
+    if (nav_keyboard_active)
+    {
+        #define NAV_MAP_KEY(_KEY, _NAV_INPUT)  do { if (IsKeyDown(_KEY)) { io.NavInputs[_NAV_INPUT] = 1.0f; g.NavInputSource = ImGuiInputSource_Keyboard; } } while (0)
+        NAV_MAP_KEY(ImGuiKey_Space,     ImGuiNavInput_Activate );
+        NAV_MAP_KEY(ImGuiKey_Enter,     ImGuiNavInput_Input    );
+        NAV_MAP_KEY(ImGuiKey_Escape,    ImGuiNavInput_Cancel   );
+        NAV_MAP_KEY(ImGuiKey_LeftArrow, ImGuiNavInput_KeyLeft_ );
+        NAV_MAP_KEY(ImGuiKey_RightArrow,ImGuiNavInput_KeyRight_);
+        NAV_MAP_KEY(ImGuiKey_UpArrow,   ImGuiNavInput_KeyUp_   );
+        NAV_MAP_KEY(ImGuiKey_DownArrow, ImGuiNavInput_KeyDown_ );
+        if (io.KeyCtrl)
+            io.NavInputs[ImGuiNavInput_TweakSlow] = 1.0f;
+        if (io.KeyShift)
+            io.NavInputs[ImGuiNavInput_TweakFast] = 1.0f;
+        #undef NAV_MAP_KEY
+    }
+    memcpy(io.NavInputsDownDurationPrev, io.NavInputsDownDuration, sizeof(io.NavInputsDownDuration));
+    for (int i = 0; i < IM_ARRAYSIZE(io.NavInputs); i++)
+        io.NavInputsDownDuration[i] = (io.NavInputs[i] > 0.0f) ? (io.NavInputsDownDuration[i] < 0.0f ? 0.0f : io.NavInputsDownDuration[i] + io.DeltaTime) : -1.0f;
+
+    // Process navigation init request (select first/default focus)
+    if (g.NavInitResultId != 0)
+        NavInitRequestApplyResult();
+    g.NavInitRequest = false;
+    g.NavInitRequestFromMove = false;
+    g.NavInitResultId = 0;
+    g.NavJustMovedToId = 0;
+
+    // Process navigation move request
+    if (g.NavMoveSubmitted)
+        NavMoveRequestApplyResult();
+    g.NavTabbingCounter = 0;
+    g.NavMoveSubmitted = g.NavMoveScoringItems = false;
+
+    // Schedule mouse position update (will be done at the bottom of this function, after 1) processing all move requests and 2) updating scrolling)
+    bool set_mouse_pos = false;
+    if (g.NavMousePosDirty && g.NavIdIsAlive)
+        if (!g.NavDisableHighlight && g.NavDisableMouseHover && g.NavWindow)
+            set_mouse_pos = true;
+    g.NavMousePosDirty = false;
+    IM_ASSERT(g.NavLayer == ImGuiNavLayer_Main || g.NavLayer == ImGuiNavLayer_Menu);
+
+    // Store our return window (for returning from Menu Layer to Main Layer) and clear it as soon as we step back in our own Layer 0
+    if (g.NavWindow)
+        NavSaveLastChildNavWindowIntoParent(g.NavWindow);
+    if (g.NavWindow && g.NavWindow->NavLastChildNavWindow != NULL && g.NavLayer == ImGuiNavLayer_Main)
+        g.NavWindow->NavLastChildNavWindow = NULL;
+
+    // Update CTRL+TAB and Windowing features (hold Square to move/resize/etc.)
+    NavUpdateWindowing();
+
+    // Set output flags for user application
+    io.NavActive = (nav_keyboard_active || nav_gamepad_active) && g.NavWindow && !(g.NavWindow->Flags & ImGuiWindowFlags_NoNavInputs);
+    io.NavVisible = (io.NavActive && g.NavId != 0 && !g.NavDisableHighlight) || (g.NavWindowingTarget != NULL);
+
+    // Process NavCancel input (to close a popup, get back to parent, clear focus)
+    NavUpdateCancelRequest();
+
+    // Process manual activation request
+    g.NavActivateId = g.NavActivateDownId = g.NavActivatePressedId = g.NavActivateInputId = 0;
+    g.NavActivateFlags = ImGuiActivateFlags_None;
+    if (g.NavId != 0 && !g.NavDisableHighlight && !g.NavWindowingTarget && g.NavWindow && !(g.NavWindow->Flags & ImGuiWindowFlags_NoNavInputs))
+    {
+        bool activate_down = IsNavInputDown(ImGuiNavInput_Activate);
+        bool input_down = IsNavInputDown(ImGuiNavInput_Input);
+        bool activate_pressed = activate_down && IsNavInputTest(ImGuiNavInput_Activate, ImGuiNavReadMode_Pressed);
+        bool input_pressed = input_down && IsNavInputTest(ImGuiNavInput_Input, ImGuiNavReadMode_Pressed);
+        if (g.ActiveId == 0 && activate_pressed)
+        {
+            g.NavActivateId = g.NavId;
+            g.NavActivateFlags = ImGuiActivateFlags_PreferTweak;
+        }
+        if ((g.ActiveId == 0 || g.ActiveId == g.NavId) && input_pressed)
+        {
+            g.NavActivateInputId = g.NavId;
+            g.NavActivateFlags = ImGuiActivateFlags_PreferInput;
+        }
+        if ((g.ActiveId == 0 || g.ActiveId == g.NavId) && activate_down)
+            g.NavActivateDownId = g.NavId;
+        if ((g.ActiveId == 0 || g.ActiveId == g.NavId) && activate_pressed)
+            g.NavActivatePressedId = g.NavId;
+    }
+    if (g.NavWindow && (g.NavWindow->Flags & ImGuiWindowFlags_NoNavInputs))
+        g.NavDisableHighlight = true;
+    if (g.NavActivateId != 0)
+        IM_ASSERT(g.NavActivateDownId == g.NavActivateId);
+
+    // Process programmatic activation request
+    // FIXME-NAV: Those should eventually be queued (unlike focus they don't cancel each others)
+    if (g.NavNextActivateId != 0)
+    {
+        if (g.NavNextActivateFlags & ImGuiActivateFlags_PreferInput)
+            g.NavActivateInputId = g.NavNextActivateId;
+        else
+            g.NavActivateId = g.NavActivateDownId = g.NavActivatePressedId = g.NavNextActivateId;
+        g.NavActivateFlags = g.NavNextActivateFlags;
+    }
+    g.NavNextActivateId = 0;
+
+    // Process move requests
+    NavUpdateCreateMoveRequest();
+    if (g.NavMoveDir == ImGuiDir_None)
+        NavUpdateCreateTabbingRequest();
+    NavUpdateAnyRequestFlag();
+    g.NavIdIsAlive = false;
+
+    // Scrolling
+    if (g.NavWindow && !(g.NavWindow->Flags & ImGuiWindowFlags_NoNavInputs) && !g.NavWindowingTarget)
+    {
+        // *Fallback* manual-scroll with Nav directional keys when window has no navigable item
+        ImGuiWindow* window = g.NavWindow;
+        const float scroll_speed = IM_ROUND(window->CalcFontSize() * 100 * io.DeltaTime); // We need round the scrolling speed because sub-pixel scroll isn't reliably supported.
+        const ImGuiDir move_dir = g.NavMoveDir;
+        if (window->DC.NavLayersActiveMask == 0x00 && window->DC.NavHasScroll && move_dir != ImGuiDir_None)
+        {
+            if (move_dir == ImGuiDir_Left || move_dir == ImGuiDir_Right)
+                SetScrollX(window, ImFloor(window->Scroll.x + ((move_dir == ImGuiDir_Left) ? -1.0f : +1.0f) * scroll_speed));
+            if (move_dir == ImGuiDir_Up || move_dir == ImGuiDir_Down)
+                SetScrollY(window, ImFloor(window->Scroll.y + ((move_dir == ImGuiDir_Up) ? -1.0f : +1.0f) * scroll_speed));
+        }
+
+        // *Normal* Manual scroll with NavScrollXXX keys
+        // Next movement request will clamp the NavId reference rectangle to the visible area, so navigation will resume within those bounds.
+        ImVec2 scroll_dir = GetNavInputAmount2d(ImGuiNavDirSourceFlags_PadLStick, ImGuiNavReadMode_Down, 1.0f / 10.0f, 10.0f);
+        if (scroll_dir.x != 0.0f && window->ScrollbarX)
+            SetScrollX(window, ImFloor(window->Scroll.x + scroll_dir.x * scroll_speed));
+        if (scroll_dir.y != 0.0f)
+            SetScrollY(window, ImFloor(window->Scroll.y + scroll_dir.y * scroll_speed));
+    }
+
+    // Always prioritize mouse highlight if navigation is disabled
+    if (!nav_keyboard_active && !nav_gamepad_active)
+    {
+        g.NavDisableHighlight = true;
+        g.NavDisableMouseHover = set_mouse_pos = false;
+    }
+
+    // Update mouse position if requested
+    // (This will take into account the possibility that a Scroll was queued in the window to offset our absolute mouse position before scroll has been applied)
+    if (set_mouse_pos && (io.ConfigFlags & ImGuiConfigFlags_NavEnableSetMousePos) && (io.BackendFlags & ImGuiBackendFlags_HasSetMousePos))
+    {
+        io.MousePos = io.MousePosPrev = NavCalcPreferredRefPos();
+        io.WantSetMousePos = true;
+        //IMGUI_DEBUG_LOG_IO("SetMousePos: (%.1f,%.1f)\n", io.MousePos.x, io.MousePos.y);
+    }
+
+    // [DEBUG]
+    g.NavScoringDebugCount = 0;
+#if IMGUI_DEBUG_NAV_RECTS
+    if (g.NavWindow)
+    {
+        ImDrawList* draw_list = GetForegroundDrawList(g.NavWindow);
+        if (1) { for (int layer = 0; layer < 2; layer++) { ImRect r = WindowRectRelToAbs(g.NavWindow, g.NavWindow->NavRectRel[layer]); draw_list->AddRect(r.Min, r.Max, IM_COL32(255,200,0,255)); } } // [DEBUG]
+        if (1) { ImU32 col = (!g.NavWindow->Hidden) ? IM_COL32(255,0,255,255) : IM_COL32(255,0,0,255); ImVec2 p = NavCalcPreferredRefPos(); char buf[32]; ImFormatString(buf, 32, "%d", g.NavLayer); draw_list->AddCircleFilled(p, 3.0f, col); draw_list->AddText(NULL, 13.0f, p + ImVec2(8,-4), col, buf); }
+    }
+#endif
+}
+
+void ImGui::NavInitRequestApplyResult()
+{
+    // In very rare cases g.NavWindow may be null (e.g. clearing focus after requesting an init request, which does happen when releasing Alt while clicking on void)
+    ImGuiContext& g = *GImGui;
+    if (!g.NavWindow)
+        return;
+
+    // Apply result from previous navigation init request (will typically select the first item, unless SetItemDefaultFocus() has been called)
+    // FIXME-NAV: On _NavFlattened windows, g.NavWindow will only be updated during subsequent frame. Not a problem currently.
+    IMGUI_DEBUG_LOG_NAV("[nav] NavInitRequest: ApplyResult: NavID 0x%08X in Layer %d Window \"%s\"\n", g.NavInitResultId, g.NavLayer, g.NavWindow->Name);
+    SetNavID(g.NavInitResultId, g.NavLayer, 0, g.NavInitResultRectRel);
+    g.NavIdIsAlive = true; // Mark as alive from previous frame as we got a result
+    if (g.NavInitRequestFromMove)
+        NavRestoreHighlightAfterMove();
+}
+
+void ImGui::NavUpdateCreateMoveRequest()
+{
+    ImGuiContext& g = *GImGui;
+    ImGuiIO& io = g.IO;
+    ImGuiWindow* window = g.NavWindow;
+
+    if (g.NavMoveForwardToNextFrame && window != NULL)
+    {
+        // Forwarding previous request (which has been modified, e.g. wrap around menus rewrite the requests with a starting rectangle at the other side of the window)
+        // (preserve most state, which were already set by the NavMoveRequestForward() function)
+        IM_ASSERT(g.NavMoveDir != ImGuiDir_None && g.NavMoveClipDir != ImGuiDir_None);
+        IM_ASSERT(g.NavMoveFlags & ImGuiNavMoveFlags_Forwarded);
+        IMGUI_DEBUG_LOG_NAV("[nav] NavMoveRequestForward %d\n", g.NavMoveDir);
+    }
+    else
+    {
+        // Initiate directional inputs request
+        g.NavMoveDir = ImGuiDir_None;
+        g.NavMoveFlags = ImGuiNavMoveFlags_None;
+        g.NavMoveScrollFlags = ImGuiScrollFlags_None;
+        if (window && !g.NavWindowingTarget && !(window->Flags & ImGuiWindowFlags_NoNavInputs))
+        {
+            const ImGuiNavReadMode read_mode = ImGuiNavReadMode_Repeat;
+            if (!IsActiveIdUsingNavDir(ImGuiDir_Left)  && (IsNavInputTest(ImGuiNavInput_DpadLeft,  read_mode) || IsNavInputTest(ImGuiNavInput_KeyLeft_,  read_mode))) { g.NavMoveDir = ImGuiDir_Left; }
+            if (!IsActiveIdUsingNavDir(ImGuiDir_Right) && (IsNavInputTest(ImGuiNavInput_DpadRight, read_mode) || IsNavInputTest(ImGuiNavInput_KeyRight_, read_mode))) { g.NavMoveDir = ImGuiDir_Right; }
+            if (!IsActiveIdUsingNavDir(ImGuiDir_Up)    && (IsNavInputTest(ImGuiNavInput_DpadUp,    read_mode) || IsNavInputTest(ImGuiNavInput_KeyUp_,    read_mode))) { g.NavMoveDir = ImGuiDir_Up; }
+            if (!IsActiveIdUsingNavDir(ImGuiDir_Down)  && (IsNavInputTest(ImGuiNavInput_DpadDown,  read_mode) || IsNavInputTest(ImGuiNavInput_KeyDown_,  read_mode))) { g.NavMoveDir = ImGuiDir_Down; }
+        }
+        g.NavMoveClipDir = g.NavMoveDir;
+        g.NavScoringNoClipRect = ImRect(+FLT_MAX, +FLT_MAX, -FLT_MAX, -FLT_MAX);
+    }
+
+    // Update PageUp/PageDown/Home/End scroll
+    // FIXME-NAV: Consider enabling those keys even without the master ImGuiConfigFlags_NavEnableKeyboard flag?
+    const bool nav_keyboard_active = (io.ConfigFlags & ImGuiConfigFlags_NavEnableKeyboard) != 0;
+    float scoring_rect_offset_y = 0.0f;
+    if (window && g.NavMoveDir == ImGuiDir_None && nav_keyboard_active)
+        scoring_rect_offset_y = NavUpdatePageUpPageDown();
+    if (scoring_rect_offset_y != 0.0f)
+    {
+        g.NavScoringNoClipRect = window->InnerRect;
+        g.NavScoringNoClipRect.TranslateY(scoring_rect_offset_y);
+    }
+
+    // [DEBUG] Always send a request
+#if IMGUI_DEBUG_NAV_SCORING
+    if (io.KeyCtrl && IsKeyPressed(ImGuiKey_C))
+        g.NavMoveDirForDebug = (ImGuiDir)((g.NavMoveDirForDebug + 1) & 3);
+    if (io.KeyCtrl && g.NavMoveDir == ImGuiDir_None)
+    {
+        g.NavMoveDir = g.NavMoveDirForDebug;
+        g.NavMoveFlags |= ImGuiNavMoveFlags_DebugNoResult;
+    }
+#endif
+
+    // Submit
+    g.NavMoveForwardToNextFrame = false;
+    if (g.NavMoveDir != ImGuiDir_None)
+        NavMoveRequestSubmit(g.NavMoveDir, g.NavMoveClipDir, g.NavMoveFlags, g.NavMoveScrollFlags);
+
+    // Moving with no reference triggers a init request (will be used as a fallback if the direction fails to find a match)
+    if (g.NavMoveSubmitted && g.NavId == 0)
+    {
+        IMGUI_DEBUG_LOG_NAV("[nav] NavInitRequest: from move, window \"%s\", layer=%d\n", window ? window->Name : "<NULL>", g.NavLayer);
+        g.NavInitRequest = g.NavInitRequestFromMove = true;
+        g.NavInitResultId = 0;
+        g.NavDisableHighlight = false;
+    }
+
+    // When using gamepad, we project the reference nav bounding box into window visible area.
+    // This is to allow resuming navigation inside the visible area after doing a large amount of scrolling, since with gamepad every movements are relative
+    // (can't focus a visible object like we can with the mouse).
+    if (g.NavMoveSubmitted && g.NavInputSource == ImGuiInputSource_Gamepad && g.NavLayer == ImGuiNavLayer_Main && window != NULL)// && (g.NavMoveFlags & ImGuiNavMoveFlags_Forwarded))
+    {
+        bool clamp_x = (g.NavMoveFlags & (ImGuiNavMoveFlags_LoopX | ImGuiNavMoveFlags_WrapX)) == 0;
+        bool clamp_y = (g.NavMoveFlags & (ImGuiNavMoveFlags_LoopY | ImGuiNavMoveFlags_WrapY)) == 0;
+        ImRect inner_rect_rel = WindowRectAbsToRel(window, ImRect(window->InnerRect.Min - ImVec2(1, 1), window->InnerRect.Max + ImVec2(1, 1)));
+        if ((clamp_x || clamp_y) && !inner_rect_rel.Contains(window->NavRectRel[g.NavLayer]))
+        {
+            //IMGUI_DEBUG_LOG_NAV("[nav] NavMoveRequest: clamp NavRectRel for gamepad move\n");
+            float pad_x = ImMin(inner_rect_rel.GetWidth(), window->CalcFontSize() * 0.5f);
+            float pad_y = ImMin(inner_rect_rel.GetHeight(), window->CalcFontSize() * 0.5f); // Terrible approximation for the intent of starting navigation from first fully visible item
+            inner_rect_rel.Min.x = clamp_x ? (inner_rect_rel.Min.x + pad_x) : -FLT_MAX;
+            inner_rect_rel.Max.x = clamp_x ? (inner_rect_rel.Max.x - pad_x) : +FLT_MAX;
+            inner_rect_rel.Min.y = clamp_y ? (inner_rect_rel.Min.y + pad_y) : -FLT_MAX;
+            inner_rect_rel.Max.y = clamp_y ? (inner_rect_rel.Max.y - pad_y) : +FLT_MAX;
+            window->NavRectRel[g.NavLayer].ClipWithFull(inner_rect_rel);
+            g.NavId = g.NavFocusScopeId = 0;
+        }
+    }
+
+    // For scoring we use a single segment on the left side our current item bounding box (not touching the edge to avoid box overlap with zero-spaced items)
+    ImRect scoring_rect;
+    if (window != NULL)
+    {
+        ImRect nav_rect_rel = !window->NavRectRel[g.NavLayer].IsInverted() ? window->NavRectRel[g.NavLayer] : ImRect(0, 0, 0, 0);
+        scoring_rect = WindowRectRelToAbs(window, nav_rect_rel);
+        scoring_rect.TranslateY(scoring_rect_offset_y);
+        scoring_rect.Min.x = ImMin(scoring_rect.Min.x + 1.0f, scoring_rect.Max.x);
+        scoring_rect.Max.x = scoring_rect.Min.x;
+        IM_ASSERT(!scoring_rect.IsInverted()); // Ensure if we have a finite, non-inverted bounding box here will allows us to remove extraneous ImFabs() calls in NavScoreItem().
+        //GetForegroundDrawList()->AddRect(scoring_rect.Min, scoring_rect.Max, IM_COL32(255,200,0,255)); // [DEBUG]
+        //if (!g.NavScoringNoClipRect.IsInverted()) { GetForegroundDrawList()->AddRect(g.NavScoringNoClipRect.Min, g.NavScoringNoClipRect.Max, IM_COL32(255, 200, 0, 255)); } // [DEBUG]
+    }
+    g.NavScoringRect = scoring_rect;
+    g.NavScoringNoClipRect.Add(scoring_rect);
+}
+
+void ImGui::NavUpdateCreateTabbingRequest()
+{
+    ImGuiContext& g = *GImGui;
+    ImGuiWindow* window = g.NavWindow;
+    IM_ASSERT(g.NavMoveDir == ImGuiDir_None);
+    if (window == NULL || g.NavWindowingTarget != NULL || (window->Flags & ImGuiWindowFlags_NoNavInputs))
+        return;
+
+    const bool tab_pressed = IsKeyPressed(ImGuiKey_Tab, true) && !IsActiveIdUsingKey(ImGuiKey_Tab) && !g.IO.KeyCtrl && !g.IO.KeyAlt;
+    if (!tab_pressed)
+        return;
+
+    // Initiate tabbing request
+    // (this is ALWAYS ENABLED, regardless of ImGuiConfigFlags_NavEnableKeyboard flag!)
+    // Initially this was designed to use counters and modulo arithmetic, but that could not work with unsubmitted items (list clipper). Instead we use a strategy close to other move requests.
+    // See NavProcessItemForTabbingRequest() for a description of the various forward/backward tabbing cases with and without wrapping.
+    //// FIXME: We use (g.ActiveId == 0) but (g.NavDisableHighlight == false) might be righter once we can tab through anything
+    g.NavTabbingDir = g.IO.KeyShift ? -1 : (g.ActiveId == 0) ? 0 : +1;
+    ImGuiScrollFlags scroll_flags = window->Appearing ? ImGuiScrollFlags_KeepVisibleEdgeX | ImGuiScrollFlags_AlwaysCenterY : ImGuiScrollFlags_KeepVisibleEdgeX | ImGuiScrollFlags_KeepVisibleEdgeY;
+    ImGuiDir clip_dir = (g.NavTabbingDir < 0) ? ImGuiDir_Up : ImGuiDir_Down;
+    NavMoveRequestSubmit(ImGuiDir_None, clip_dir, ImGuiNavMoveFlags_Tabbing, scroll_flags); // FIXME-NAV: Once we refactor tabbing, add LegacyApi flag to not activate non-inputable.
+    g.NavTabbingCounter = -1;
+}
+
+// Apply result from previous frame navigation directional move request. Always called from NavUpdate()
+void ImGui::NavMoveRequestApplyResult()
+{
+    ImGuiContext& g = *GImGui;
+#if IMGUI_DEBUG_NAV_SCORING
+    if (g.NavMoveFlags & ImGuiNavMoveFlags_DebugNoResult) // [DEBUG] Scoring all items in NavWindow at all times
+        return;
+#endif
+
+    // Select which result to use
+    ImGuiNavItemData* result = (g.NavMoveResultLocal.ID != 0) ? &g.NavMoveResultLocal : (g.NavMoveResultOther.ID != 0) ? &g.NavMoveResultOther : NULL;
+
+    // Tabbing forward wrap
+    if (g.NavMoveFlags & ImGuiNavMoveFlags_Tabbing)
+        if ((g.NavTabbingCounter == 1 || g.NavTabbingDir == 0) && g.NavTabbingResultFirst.ID)
+            result = &g.NavTabbingResultFirst;
+
+    // In a situation when there is no results but NavId != 0, re-enable the Navigation highlight (because g.NavId is not considered as a possible result)
+    if (result == NULL)
+    {
+        if (g.NavMoveFlags & ImGuiNavMoveFlags_Tabbing)
+            g.NavMoveFlags |= ImGuiNavMoveFlags_DontSetNavHighlight;
+        if (g.NavId != 0 && (g.NavMoveFlags & ImGuiNavMoveFlags_DontSetNavHighlight) == 0)
+            NavRestoreHighlightAfterMove();
+        return;
+    }
+
+    // PageUp/PageDown behavior first jumps to the bottom/top mostly visible item, _otherwise_ use the result from the previous/next page.
+    if (g.NavMoveFlags & ImGuiNavMoveFlags_AlsoScoreVisibleSet)
+        if (g.NavMoveResultLocalVisible.ID != 0 && g.NavMoveResultLocalVisible.ID != g.NavId)
+            result = &g.NavMoveResultLocalVisible;
+
+    // Maybe entering a flattened child from the outside? In this case solve the tie using the regular scoring rules.
+    if (result != &g.NavMoveResultOther && g.NavMoveResultOther.ID != 0 && g.NavMoveResultOther.Window->ParentWindow == g.NavWindow)
+        if ((g.NavMoveResultOther.DistBox < result->DistBox) || (g.NavMoveResultOther.DistBox == result->DistBox && g.NavMoveResultOther.DistCenter < result->DistCenter))
+            result = &g.NavMoveResultOther;
+    IM_ASSERT(g.NavWindow && result->Window);
+
+    // Scroll to keep newly navigated item fully into view.
+    if (g.NavLayer == ImGuiNavLayer_Main)
+    {
+        if (g.NavMoveFlags & ImGuiNavMoveFlags_ScrollToEdgeY)
+        {
+            // FIXME: Should remove this
+            float scroll_target = (g.NavMoveDir == ImGuiDir_Up) ? result->Window->ScrollMax.y : 0.0f;
+            SetScrollY(result->Window, scroll_target);
+        }
+        else
+        {
+            ImRect rect_abs = WindowRectRelToAbs(result->Window, result->RectRel);
+            ScrollToRectEx(result->Window, rect_abs, g.NavMoveScrollFlags);
+        }
+    }
+
+    if (g.NavWindow != result->Window)
+    {
+        IMGUI_DEBUG_LOG_FOCUS("[focus] NavMoveRequest: SetNavWindow(\"%s\")\n", result->Window->Name);
+        g.NavWindow = result->Window;
+    }
+    if (g.ActiveId != result->ID)
+        ClearActiveID();
+    if (g.NavId != result->ID)
+    {
+        // Don't set NavJustMovedToId if just landed on the same spot (which may happen with ImGuiNavMoveFlags_AllowCurrentNavId)
+        g.NavJustMovedToId = result->ID;
+        g.NavJustMovedToFocusScopeId = result->FocusScopeId;
+        g.NavJustMovedToKeyMods = g.NavMoveKeyMods;
+    }
+
+    // Focus
+    IMGUI_DEBUG_LOG_NAV("[nav] NavMoveRequest: result NavID 0x%08X in Layer %d Window \"%s\"\n", result->ID, g.NavLayer, g.NavWindow->Name);
+    SetNavID(result->ID, g.NavLayer, result->FocusScopeId, result->RectRel);
+
+    // Tabbing: Activates Inputable or Focus non-Inputable
+    if ((g.NavMoveFlags & ImGuiNavMoveFlags_Tabbing) && (result->InFlags & ImGuiItemFlags_Inputable))
+    {
+        g.NavNextActivateId = result->ID;
+        g.NavNextActivateFlags = ImGuiActivateFlags_PreferInput | ImGuiActivateFlags_TryToPreserveState;
+        g.NavMoveFlags |= ImGuiNavMoveFlags_DontSetNavHighlight;
+    }
+
+    // Activate
+    if (g.NavMoveFlags & ImGuiNavMoveFlags_Activate)
+    {
+        g.NavNextActivateId = result->ID;
+        g.NavNextActivateFlags = ImGuiActivateFlags_None;
+    }
+
+    // Enable nav highlight
+    if ((g.NavMoveFlags & ImGuiNavMoveFlags_DontSetNavHighlight) == 0)
+        NavRestoreHighlightAfterMove();
+}
+
+// Process NavCancel input (to close a popup, get back to parent, clear focus)
+// FIXME: In order to support e.g. Escape to clear a selection we'll need:
+// - either to store the equivalent of ActiveIdUsingKeyInputMask for a FocusScope and test for it.
+// - either to move most/all of those tests to the epilogue/end functions of the scope they are dealing with (e.g. exit child window in EndChild()) or in EndFrame(), to allow an earlier intercept
+static void ImGui::NavUpdateCancelRequest()
+{
+    ImGuiContext& g = *GImGui;
+    if (!IsNavInputTest(ImGuiNavInput_Cancel, ImGuiNavReadMode_Pressed))
+        return;
+
+    IMGUI_DEBUG_LOG_NAV("[nav] ImGuiNavInput_Cancel\n");
+    if (g.ActiveId != 0)
+    {
+        if (!IsActiveIdUsingNavInput(ImGuiNavInput_Cancel))
+            ClearActiveID();
+    }
+    else if (g.NavLayer != ImGuiNavLayer_Main)
+    {
+        // Leave the "menu" layer
+        NavRestoreLayer(ImGuiNavLayer_Main);
+        NavRestoreHighlightAfterMove();
+    }
+    else if (g.NavWindow && g.NavWindow != g.NavWindow->RootWindow && !(g.NavWindow->Flags & ImGuiWindowFlags_Popup) && g.NavWindow->ParentWindow)
+    {
+        // Exit child window
+        ImGuiWindow* child_window = g.NavWindow;
+        ImGuiWindow* parent_window = g.NavWindow->ParentWindow;
+        IM_ASSERT(child_window->ChildId != 0);
+        ImRect child_rect = child_window->Rect();
+        FocusWindow(parent_window);
+        SetNavID(child_window->ChildId, ImGuiNavLayer_Main, 0, WindowRectAbsToRel(parent_window, child_rect));
+        NavRestoreHighlightAfterMove();
+    }
+    else if (g.OpenPopupStack.Size > 0 && !(g.OpenPopupStack.back().Window->Flags & ImGuiWindowFlags_Modal))
+    {
+        // Close open popup/menu
+        ClosePopupToLevel(g.OpenPopupStack.Size - 1, true);
+    }
+    else
+    {
+        // Clear NavLastId for popups but keep it for regular child window so we can leave one and come back where we were
+        if (g.NavWindow && ((g.NavWindow->Flags & ImGuiWindowFlags_Popup) || !(g.NavWindow->Flags & ImGuiWindowFlags_ChildWindow)))
+            g.NavWindow->NavLastIds[0] = 0;
+        g.NavId = g.NavFocusScopeId = 0;
+    }
+}
+
+// Handle PageUp/PageDown/Home/End keys
+// Called from NavUpdateCreateMoveRequest() which will use our output to create a move request
+// FIXME-NAV: This doesn't work properly with NavFlattened siblings as we use NavWindow rectangle for reference
+// FIXME-NAV: how to get Home/End to aim at the beginning/end of a 2D grid?
+static float ImGui::NavUpdatePageUpPageDown()
+{
+    ImGuiContext& g = *GImGui;
+    ImGuiWindow* window = g.NavWindow;
+    if ((window->Flags & ImGuiWindowFlags_NoNavInputs) || g.NavWindowingTarget != NULL)
+        return 0.0f;
+
+    const bool page_up_held = IsKeyDown(ImGuiKey_PageUp) && !IsActiveIdUsingKey(ImGuiKey_PageUp);
+    const bool page_down_held = IsKeyDown(ImGuiKey_PageDown) && !IsActiveIdUsingKey(ImGuiKey_PageDown);
+    const bool home_pressed = IsKeyPressed(ImGuiKey_Home) && !IsActiveIdUsingKey(ImGuiKey_Home);
+    const bool end_pressed = IsKeyPressed(ImGuiKey_End) && !IsActiveIdUsingKey(ImGuiKey_End);
+    if (page_up_held == page_down_held && home_pressed == end_pressed) // Proceed if either (not both) are pressed, otherwise early out
+        return 0.0f;
+
+    if (g.NavLayer != ImGuiNavLayer_Main)
+        NavRestoreLayer(ImGuiNavLayer_Main);
+
+    if (window->DC.NavLayersActiveMask == 0x00 && window->DC.NavHasScroll)
+    {
+        // Fallback manual-scroll when window has no navigable item
+        if (IsKeyPressed(ImGuiKey_PageUp, true))
+            SetScrollY(window, window->Scroll.y - window->InnerRect.GetHeight());
+        else if (IsKeyPressed(ImGuiKey_PageDown, true))
+            SetScrollY(window, window->Scroll.y + window->InnerRect.GetHeight());
+        else if (home_pressed)
+            SetScrollY(window, 0.0f);
+        else if (end_pressed)
+            SetScrollY(window, window->ScrollMax.y);
+    }
+    else
+    {
+        ImRect& nav_rect_rel = window->NavRectRel[g.NavLayer];
+        const float page_offset_y = ImMax(0.0f, window->InnerRect.GetHeight() - window->CalcFontSize() * 1.0f + nav_rect_rel.GetHeight());
+        float nav_scoring_rect_offset_y = 0.0f;
+        if (IsKeyPressed(ImGuiKey_PageUp, true))
+        {
+            nav_scoring_rect_offset_y = -page_offset_y;
+            g.NavMoveDir = ImGuiDir_Down; // Because our scoring rect is offset up, we request the down direction (so we can always land on the last item)
+            g.NavMoveClipDir = ImGuiDir_Up;
+            g.NavMoveFlags = ImGuiNavMoveFlags_AllowCurrentNavId | ImGuiNavMoveFlags_AlsoScoreVisibleSet;
+        }
+        else if (IsKeyPressed(ImGuiKey_PageDown, true))
+        {
+            nav_scoring_rect_offset_y = +page_offset_y;
+            g.NavMoveDir = ImGuiDir_Up; // Because our scoring rect is offset down, we request the up direction (so we can always land on the last item)
+            g.NavMoveClipDir = ImGuiDir_Down;
+            g.NavMoveFlags = ImGuiNavMoveFlags_AllowCurrentNavId | ImGuiNavMoveFlags_AlsoScoreVisibleSet;
+        }
+        else if (home_pressed)
+        {
+            // FIXME-NAV: handling of Home/End is assuming that the top/bottom most item will be visible with Scroll.y == 0/ScrollMax.y
+            // Scrolling will be handled via the ImGuiNavMoveFlags_ScrollToEdgeY flag, we don't scroll immediately to avoid scrolling happening before nav result.
+            // Preserve current horizontal position if we have any.
+            nav_rect_rel.Min.y = nav_rect_rel.Max.y = 0.0f;
+            if (nav_rect_rel.IsInverted())
+                nav_rect_rel.Min.x = nav_rect_rel.Max.x = 0.0f;
+            g.NavMoveDir = ImGuiDir_Down;
+            g.NavMoveFlags = ImGuiNavMoveFlags_AllowCurrentNavId | ImGuiNavMoveFlags_ScrollToEdgeY;
+            // FIXME-NAV: MoveClipDir left to _None, intentional?
+        }
+        else if (end_pressed)
+        {
+            nav_rect_rel.Min.y = nav_rect_rel.Max.y = window->ContentSize.y;
+            if (nav_rect_rel.IsInverted())
+                nav_rect_rel.Min.x = nav_rect_rel.Max.x = 0.0f;
+            g.NavMoveDir = ImGuiDir_Up;
+            g.NavMoveFlags = ImGuiNavMoveFlags_AllowCurrentNavId | ImGuiNavMoveFlags_ScrollToEdgeY;
+            // FIXME-NAV: MoveClipDir left to _None, intentional?
+        }
+        return nav_scoring_rect_offset_y;
+    }
+    return 0.0f;
+}
+
+static void ImGui::NavEndFrame()
+{
+    ImGuiContext& g = *GImGui;
+
+    // Show CTRL+TAB list window
+    if (g.NavWindowingTarget != NULL)
+        NavUpdateWindowingOverlay();
+
+    // Perform wrap-around in menus
+    // FIXME-NAV: Wrap may need to apply a weight bias on the other axis. e.g. 4x4 grid with 2 last items missing on last item won't handle LoopY/WrapY correctly.
+    // FIXME-NAV: Wrap (not Loop) support could be handled by the scoring function and then WrapX would function without an extra frame.
+    const ImGuiNavMoveFlags wanted_flags = ImGuiNavMoveFlags_WrapX | ImGuiNavMoveFlags_LoopX | ImGuiNavMoveFlags_WrapY | ImGuiNavMoveFlags_LoopY;
+    if (g.NavWindow && NavMoveRequestButNoResultYet() && (g.NavMoveFlags & wanted_flags) && (g.NavMoveFlags & ImGuiNavMoveFlags_Forwarded) == 0)
+        NavUpdateCreateWrappingRequest();
+}
+
+static void ImGui::NavUpdateCreateWrappingRequest()
+{
+    ImGuiContext& g = *GImGui;
+    ImGuiWindow* window = g.NavWindow;
+
+    bool do_forward = false;
+    ImRect bb_rel = window->NavRectRel[g.NavLayer];
+    ImGuiDir clip_dir = g.NavMoveDir;
+    const ImGuiNavMoveFlags move_flags = g.NavMoveFlags;
+    if (g.NavMoveDir == ImGuiDir_Left && (move_flags & (ImGuiNavMoveFlags_WrapX | ImGuiNavMoveFlags_LoopX)))
+    {
+        bb_rel.Min.x = bb_rel.Max.x = window->ContentSize.x + window->WindowPadding.x;
+        if (move_flags & ImGuiNavMoveFlags_WrapX)
+        {
+            bb_rel.TranslateY(-bb_rel.GetHeight()); // Previous row
+            clip_dir = ImGuiDir_Up;
+        }
+        do_forward = true;
+    }
+    if (g.NavMoveDir == ImGuiDir_Right && (move_flags & (ImGuiNavMoveFlags_WrapX | ImGuiNavMoveFlags_LoopX)))
+    {
+        bb_rel.Min.x = bb_rel.Max.x = -window->WindowPadding.x;
+        if (move_flags & ImGuiNavMoveFlags_WrapX)
+        {
+            bb_rel.TranslateY(+bb_rel.GetHeight()); // Next row
+            clip_dir = ImGuiDir_Down;
+        }
+        do_forward = true;
+    }
+    if (g.NavMoveDir == ImGuiDir_Up && (move_flags & (ImGuiNavMoveFlags_WrapY | ImGuiNavMoveFlags_LoopY)))
+    {
+        bb_rel.Min.y = bb_rel.Max.y = window->ContentSize.y + window->WindowPadding.y;
+        if (move_flags & ImGuiNavMoveFlags_WrapY)
+        {
+            bb_rel.TranslateX(-bb_rel.GetWidth()); // Previous column
+            clip_dir = ImGuiDir_Left;
+        }
+        do_forward = true;
+    }
+    if (g.NavMoveDir == ImGuiDir_Down && (move_flags & (ImGuiNavMoveFlags_WrapY | ImGuiNavMoveFlags_LoopY)))
+    {
+        bb_rel.Min.y = bb_rel.Max.y = -window->WindowPadding.y;
+        if (move_flags & ImGuiNavMoveFlags_WrapY)
+        {
+            bb_rel.TranslateX(+bb_rel.GetWidth()); // Next column
+            clip_dir = ImGuiDir_Right;
+        }
+        do_forward = true;
+    }
+    if (!do_forward)
+        return;
+    window->NavRectRel[g.NavLayer] = bb_rel;
+    NavMoveRequestForward(g.NavMoveDir, clip_dir, move_flags, g.NavMoveScrollFlags);
+}
+
+static int ImGui::FindWindowFocusIndex(ImGuiWindow* window)
+{
+    ImGuiContext& g = *GImGui;
+    IM_UNUSED(g);
+    int order = window->FocusOrder;
+    IM_ASSERT(window->RootWindow == window); // No child window (not testing _ChildWindow because of docking)
+    IM_ASSERT(g.WindowsFocusOrder[order] == window);
+    return order;
+}
+
+static ImGuiWindow* FindWindowNavFocusable(int i_start, int i_stop, int dir) // FIXME-OPT O(N)
+{
+    ImGuiContext& g = *GImGui;
+    for (int i = i_start; i >= 0 && i < g.WindowsFocusOrder.Size && i != i_stop; i += dir)
+        if (ImGui::IsWindowNavFocusable(g.WindowsFocusOrder[i]))
+            return g.WindowsFocusOrder[i];
+    return NULL;
+}
+
+static void NavUpdateWindowingHighlightWindow(int focus_change_dir)
+{
+    ImGuiContext& g = *GImGui;
+    IM_ASSERT(g.NavWindowingTarget);
+    if (g.NavWindowingTarget->Flags & ImGuiWindowFlags_Modal)
+        return;
+
+    const int i_current = ImGui::FindWindowFocusIndex(g.NavWindowingTarget);
+    ImGuiWindow* window_target = FindWindowNavFocusable(i_current + focus_change_dir, -INT_MAX, focus_change_dir);
+    if (!window_target)
+        window_target = FindWindowNavFocusable((focus_change_dir < 0) ? (g.WindowsFocusOrder.Size - 1) : 0, i_current, focus_change_dir);
+    if (window_target) // Don't reset windowing target if there's a single window in the list
+        g.NavWindowingTarget = g.NavWindowingTargetAnim = window_target;
+    g.NavWindowingToggleLayer = false;
+}
+
+// Windowing management mode
+// Keyboard: CTRL+Tab (change focus/move/resize), Alt (toggle menu layer)
+// Gamepad:  Hold Menu/Square (change focus/move/resize), Tap Menu/Square (toggle menu layer)
+static void ImGui::NavUpdateWindowing()
+{
+    ImGuiContext& g = *GImGui;
+    ImGuiIO& io = g.IO;
+
+    ImGuiWindow* apply_focus_window = NULL;
+    bool apply_toggle_layer = false;
+
+    ImGuiWindow* modal_window = GetTopMostPopupModal();
+    bool allow_windowing = (modal_window == NULL);
+    if (!allow_windowing)
+        g.NavWindowingTarget = NULL;
+
+    // Fade out
+    if (g.NavWindowingTargetAnim && g.NavWindowingTarget == NULL)
+    {
+        g.NavWindowingHighlightAlpha = ImMax(g.NavWindowingHighlightAlpha - io.DeltaTime * 10.0f, 0.0f);
+        if (g.DimBgRatio <= 0.0f && g.NavWindowingHighlightAlpha <= 0.0f)
+            g.NavWindowingTargetAnim = NULL;
+    }
+
+    // Start CTRL+Tab or Square+L/R window selection
+    const bool start_windowing_with_gamepad = allow_windowing && !g.NavWindowingTarget && IsNavInputTest(ImGuiNavInput_Menu, ImGuiNavReadMode_Pressed);
+    const bool start_windowing_with_keyboard = allow_windowing && !g.NavWindowingTarget && io.KeyCtrl && IsKeyPressed(ImGuiKey_Tab);
+    if (start_windowing_with_gamepad || start_windowing_with_keyboard)
+        if (ImGuiWindow* window = g.NavWindow ? g.NavWindow : FindWindowNavFocusable(g.WindowsFocusOrder.Size - 1, -INT_MAX, -1))
+        {
+            g.NavWindowingTarget = g.NavWindowingTargetAnim = window->RootWindow;
+            g.NavWindowingTimer = g.NavWindowingHighlightAlpha = 0.0f;
+            g.NavWindowingToggleLayer = start_windowing_with_gamepad ? true : false; // Gamepad starts toggling layer
+            g.NavInputSource = start_windowing_with_keyboard ? ImGuiInputSource_Keyboard : ImGuiInputSource_Gamepad;
+        }
+
+    // Gamepad update
+    g.NavWindowingTimer += io.DeltaTime;
+    if (g.NavWindowingTarget && g.NavInputSource == ImGuiInputSource_Gamepad)
+    {
+        // Highlight only appears after a brief time holding the button, so that a fast tap on PadMenu (to toggle NavLayer) doesn't add visual noise
+        g.NavWindowingHighlightAlpha = ImMax(g.NavWindowingHighlightAlpha, ImSaturate((g.NavWindowingTimer - NAV_WINDOWING_HIGHLIGHT_DELAY) / 0.05f));
+
+        // Select window to focus
+        const int focus_change_dir = (int)IsNavInputTest(ImGuiNavInput_FocusPrev, ImGuiNavReadMode_RepeatSlow) - (int)IsNavInputTest(ImGuiNavInput_FocusNext, ImGuiNavReadMode_RepeatSlow);
+        if (focus_change_dir != 0)
+        {
+            NavUpdateWindowingHighlightWindow(focus_change_dir);
+            g.NavWindowingHighlightAlpha = 1.0f;
+        }
+
+        // Single press toggles NavLayer, long press with L/R apply actual focus on release (until then the window was merely rendered top-most)
+        if (!IsNavInputDown(ImGuiNavInput_Menu))
+        {
+            g.NavWindowingToggleLayer &= (g.NavWindowingHighlightAlpha < 1.0f); // Once button was held long enough we don't consider it a tap-to-toggle-layer press anymore.
+            if (g.NavWindowingToggleLayer && g.NavWindow)
+                apply_toggle_layer = true;
+            else if (!g.NavWindowingToggleLayer)
+                apply_focus_window = g.NavWindowingTarget;
+            g.NavWindowingTarget = NULL;
+        }
+    }
+
+    // Keyboard: Focus
+    if (g.NavWindowingTarget && g.NavInputSource == ImGuiInputSource_Keyboard)
+    {
+        // Visuals only appears after a brief time after pressing TAB the first time, so that a fast CTRL+TAB doesn't add visual noise
+        g.NavWindowingHighlightAlpha = ImMax(g.NavWindowingHighlightAlpha, ImSaturate((g.NavWindowingTimer - NAV_WINDOWING_HIGHLIGHT_DELAY) / 0.05f)); // 1.0f
+        if (IsKeyPressed(ImGuiKey_Tab, true))
+            NavUpdateWindowingHighlightWindow(io.KeyShift ? +1 : -1);
+        if (!io.KeyCtrl)
+            apply_focus_window = g.NavWindowingTarget;
+    }
+
+    // Keyboard: Press and Release ALT to toggle menu layer
+    // - Testing that only Alt is tested prevents Alt+Shift or AltGR from toggling menu layer.
+    // - AltGR is normally Alt+Ctrl but we can't reliably detect it (not all backends/systems/layout emit it as Alt+Ctrl). But even on keyboards without AltGR we don't want Alt+Ctrl to open menu anyway.
+	const bool nav_keyboard_active = (io.ConfigFlags & ImGuiConfigFlags_NavEnableKeyboard) != 0;
+    if (nav_keyboard_active && IsKeyPressed(ImGuiKey_ModAlt))
+    {
+        g.NavWindowingToggleLayer = true;
+        g.NavInputSource = ImGuiInputSource_Keyboard;
+    }
+    if (g.NavWindowingToggleLayer && g.NavInputSource == ImGuiInputSource_Keyboard)
+    {
+        // We cancel toggling nav layer when any text has been typed (generally while holding Alt). (See #370)
+        // We cancel toggling nav layer when other modifiers are pressed. (See #4439)
+        if (io.InputQueueCharacters.Size > 0 || io.KeyCtrl || io.KeyShift || io.KeySuper)
+            g.NavWindowingToggleLayer = false;
+
+        // Apply layer toggle on release
+        // Important: as before version <18314 we lacked an explicit IO event for focus gain/loss, we also compare mouse validity to detect old backends clearing mouse pos on focus loss.
+        if (IsKeyReleased(ImGuiKey_ModAlt) && g.NavWindowingToggleLayer)
+            if (g.ActiveId == 0 || g.ActiveIdAllowOverlap)
+                if (IsMousePosValid(&io.MousePos) == IsMousePosValid(&io.MousePosPrev))
+                    apply_toggle_layer = true;
+        if (!IsKeyDown(ImGuiKey_ModAlt))
+            g.NavWindowingToggleLayer = false;
+    }
+
+    // Move window
+    if (g.NavWindowingTarget && !(g.NavWindowingTarget->Flags & ImGuiWindowFlags_NoMove))
+    {
+        ImVec2 move_delta;
+        if (g.NavInputSource == ImGuiInputSource_Keyboard && !io.KeyShift)
+            move_delta = GetNavInputAmount2d(ImGuiNavDirSourceFlags_RawKeyboard, ImGuiNavReadMode_Down);
+        if (g.NavInputSource == ImGuiInputSource_Gamepad)
+            move_delta = GetNavInputAmount2d(ImGuiNavDirSourceFlags_PadLStick, ImGuiNavReadMode_Down);
+        if (move_delta.x != 0.0f || move_delta.y != 0.0f)
+        {
+            const float NAV_MOVE_SPEED = 800.0f;
+            const float move_speed = ImFloor(NAV_MOVE_SPEED * io.DeltaTime * ImMin(io.DisplayFramebufferScale.x, io.DisplayFramebufferScale.y)); // FIXME: Doesn't handle variable framerate very well
+            ImGuiWindow* moving_window = g.NavWindowingTarget->RootWindow;
+            SetWindowPos(moving_window, moving_window->Pos + move_delta * move_speed, ImGuiCond_Always);
+            g.NavDisableMouseHover = true;
+        }
+    }
+
+    // Apply final focus
+    if (apply_focus_window && (g.NavWindow == NULL || apply_focus_window != g.NavWindow->RootWindow))
+    {
+        ClearActiveID();
+        NavRestoreHighlightAfterMove();
+        apply_focus_window = NavRestoreLastChildNavWindow(apply_focus_window);
+        ClosePopupsOverWindow(apply_focus_window, false);
+        FocusWindow(apply_focus_window);
+        if (apply_focus_window->NavLastIds[0] == 0)
+            NavInitWindow(apply_focus_window, false);
+
+        // If the window has ONLY a menu layer (no main layer), select it directly
+        // Use NavLayersActiveMaskNext since windows didn't have a chance to be Begin()-ed on this frame,
+        // so CTRL+Tab where the keys are only held for 1 frame will be able to use correct layers mask since
+        // the target window as already been previewed once.
+        // FIXME-NAV: This should be done in NavInit.. or in FocusWindow... However in both of those cases,
+        // we won't have a guarantee that windows has been visible before and therefore NavLayersActiveMask*
+        // won't be valid.
+        if (apply_focus_window->DC.NavLayersActiveMaskNext == (1 << ImGuiNavLayer_Menu))
+            g.NavLayer = ImGuiNavLayer_Menu;
+    }
+    if (apply_focus_window)
+        g.NavWindowingTarget = NULL;
+
+    // Apply menu/layer toggle
+    if (apply_toggle_layer && g.NavWindow)
+    {
+        ClearActiveID();
+
+        // Move to parent menu if necessary
+        ImGuiWindow* new_nav_window = g.NavWindow;
+        while (new_nav_window->ParentWindow
+            && (new_nav_window->DC.NavLayersActiveMask & (1 << ImGuiNavLayer_Menu)) == 0
+            && (new_nav_window->Flags & ImGuiWindowFlags_ChildWindow) != 0
+            && (new_nav_window->Flags & (ImGuiWindowFlags_Popup | ImGuiWindowFlags_ChildMenu)) == 0)
+            new_nav_window = new_nav_window->ParentWindow;
+        if (new_nav_window != g.NavWindow)
+        {
+            ImGuiWindow* old_nav_window = g.NavWindow;
+            FocusWindow(new_nav_window);
+            new_nav_window->NavLastChildNavWindow = old_nav_window;
+        }
+
+        // Toggle layer
+        const ImGuiNavLayer new_nav_layer = (g.NavWindow->DC.NavLayersActiveMask & (1 << ImGuiNavLayer_Menu)) ? (ImGuiNavLayer)((int)g.NavLayer ^ 1) : ImGuiNavLayer_Main;
+        if (new_nav_layer != g.NavLayer)
+        {
+            // Reinitialize navigation when entering menu bar with the Alt key (FIXME: could be a properly of the layer?)
+            if (new_nav_layer == ImGuiNavLayer_Menu)
+                g.NavWindow->NavLastIds[new_nav_layer] = 0;
+            NavRestoreLayer(new_nav_layer);
+            NavRestoreHighlightAfterMove();
+        }
+    }
+}
+
+// Window has already passed the IsWindowNavFocusable()
+static const char* GetFallbackWindowNameForWindowingList(ImGuiWindow* window)
+{
+    if (window->Flags & ImGuiWindowFlags_Popup)
+        return "(Popup)";
+    if ((window->Flags & ImGuiWindowFlags_MenuBar) && strcmp(window->Name, "##MainMenuBar") == 0)
+        return "(Main menu bar)";
+    return "(Untitled)";
+}
+
+// Overlay displayed when using CTRL+TAB. Called by EndFrame().
+void ImGui::NavUpdateWindowingOverlay()
+{
+    ImGuiContext& g = *GImGui;
+    IM_ASSERT(g.NavWindowingTarget != NULL);
+
+    if (g.NavWindowingTimer < NAV_WINDOWING_LIST_APPEAR_DELAY)
+        return;
+
+    if (g.NavWindowingListWindow == NULL)
+        g.NavWindowingListWindow = FindWindowByName("###NavWindowingList");
+    const ImGuiViewport* viewport = GetMainViewport();
+    SetNextWindowSizeConstraints(ImVec2(viewport->Size.x * 0.20f, viewport->Size.y * 0.20f), ImVec2(FLT_MAX, FLT_MAX));
+    SetNextWindowPos(viewport->GetCenter(), ImGuiCond_Always, ImVec2(0.5f, 0.5f));
+    PushStyleVar(ImGuiStyleVar_WindowPadding, g.Style.WindowPadding * 2.0f);
+    Begin("###NavWindowingList", NULL, ImGuiWindowFlags_NoTitleBar | ImGuiWindowFlags_NoFocusOnAppearing | ImGuiWindowFlags_NoResize | ImGuiWindowFlags_NoMove | ImGuiWindowFlags_NoInputs | ImGuiWindowFlags_AlwaysAutoResize | ImGuiWindowFlags_NoSavedSettings);
+    for (int n = g.WindowsFocusOrder.Size - 1; n >= 0; n--)
+    {
+        ImGuiWindow* window = g.WindowsFocusOrder[n];
+        IM_ASSERT(window != NULL); // Fix static analyzers
+        if (!IsWindowNavFocusable(window))
+            continue;
+        const char* label = window->Name;
+        if (label == FindRenderedTextEnd(label))
+            label = GetFallbackWindowNameForWindowingList(window);
+        Selectable(label, g.NavWindowingTarget == window);
+    }
+    End();
+    PopStyleVar();
+}
+
+
+//-----------------------------------------------------------------------------
+// [SECTION] DRAG AND DROP
+//-----------------------------------------------------------------------------
+
+bool ImGui::IsDragDropActive()
+{
+    ImGuiContext& g = *GImGui;
+    return g.DragDropActive;
+}
+
+void ImGui::ClearDragDrop()
+{
+    ImGuiContext& g = *GImGui;
+    g.DragDropActive = false;
+    g.DragDropPayload.Clear();
+    g.DragDropAcceptFlags = ImGuiDragDropFlags_None;
+    g.DragDropAcceptIdCurr = g.DragDropAcceptIdPrev = 0;
+    g.DragDropAcceptIdCurrRectSurface = FLT_MAX;
+    g.DragDropAcceptFrameCount = -1;
+
+    g.DragDropPayloadBufHeap.clear();
+    memset(&g.DragDropPayloadBufLocal, 0, sizeof(g.DragDropPayloadBufLocal));
+}
+
+// When this returns true you need to: a) call SetDragDropPayload() exactly once, b) you may render the payload visual/description, c) call EndDragDropSource()
+// If the item has an identifier:
+// - This assume/require the item to be activated (typically via ButtonBehavior).
+// - Therefore if you want to use this with a mouse button other than left mouse button, it is up to the item itself to activate with another button.
+// - We then pull and use the mouse button that was used to activate the item and use it to carry on the drag.
+// If the item has no identifier:
+// - Currently always assume left mouse button.
+bool ImGui::BeginDragDropSource(ImGuiDragDropFlags flags)
+{
+    ImGuiContext& g = *GImGui;
+    ImGuiWindow* window = g.CurrentWindow;
+
+    // FIXME-DRAGDROP: While in the common-most "drag from non-zero active id" case we can tell the mouse button,
+    // in both SourceExtern and id==0 cases we may requires something else (explicit flags or some heuristic).
+    ImGuiMouseButton mouse_button = ImGuiMouseButton_Left;
+
+    bool source_drag_active = false;
+    ImGuiID source_id = 0;
+    ImGuiID source_parent_id = 0;
+    if (!(flags & ImGuiDragDropFlags_SourceExtern))
+    {
+        source_id = g.LastItemData.ID;
+        if (source_id != 0)
+        {
+            // Common path: items with ID
+            if (g.ActiveId != source_id)
+                return false;
+            if (g.ActiveIdMouseButton != -1)
+                mouse_button = g.ActiveIdMouseButton;
+            if (g.IO.MouseDown[mouse_button] == false || window->SkipItems)
+                return false;
+            g.ActiveIdAllowOverlap = false;
+        }
+        else
+        {
+            // Uncommon path: items without ID
+            if (g.IO.MouseDown[mouse_button] == false || window->SkipItems)
+                return false;
+            if ((g.LastItemData.StatusFlags & ImGuiItemStatusFlags_HoveredRect) == 0 && (g.ActiveId == 0 || g.ActiveIdWindow != window))
+                return false;
+
+            // If you want to use BeginDragDropSource() on an item with no unique identifier for interaction, such as Text() or Image(), you need to:
+            // A) Read the explanation below, B) Use the ImGuiDragDropFlags_SourceAllowNullID flag.
+            if (!(flags & ImGuiDragDropFlags_SourceAllowNullID))
+            {
+                IM_ASSERT(0);
+                return false;
+            }
+
+            // Magic fallback to handle items with no assigned ID, e.g. Text(), Image()
+            // We build a throwaway ID based on current ID stack + relative AABB of items in window.
+            // THE IDENTIFIER WON'T SURVIVE ANY REPOSITIONING/RESIZINGG OF THE WIDGET, so if your widget moves your dragging operation will be canceled.
+            // We don't need to maintain/call ClearActiveID() as releasing the button will early out this function and trigger !ActiveIdIsAlive.
+            // Rely on keeping other window->LastItemXXX fields intact.
+            source_id = g.LastItemData.ID = window->GetIDFromRectangle(g.LastItemData.Rect);
+            KeepAliveID(source_id);
+            bool is_hovered = ItemHoverable(g.LastItemData.Rect, source_id);
+            if (is_hovered && g.IO.MouseClicked[mouse_button])
+            {
+                SetActiveID(source_id, window);
+                FocusWindow(window);
+            }
+            if (g.ActiveId == source_id) // Allow the underlying widget to display/return hovered during the mouse release frame, else we would get a flicker.
+                g.ActiveIdAllowOverlap = is_hovered;
+        }
+        if (g.ActiveId != source_id)
+            return false;
+        source_parent_id = window->IDStack.back();
+        source_drag_active = IsMouseDragging(mouse_button);
+
+        // Disable navigation and key inputs while dragging + cancel existing request if any
+        SetActiveIdUsingNavAndKeys();
+    }
+    else
+    {
+        window = NULL;
+        source_id = ImHashStr("#SourceExtern");
+        source_drag_active = true;
+    }
+
+    if (source_drag_active)
+    {
+        if (!g.DragDropActive)
+        {
+            IM_ASSERT(source_id != 0);
+            ClearDragDrop();
+            ImGuiPayload& payload = g.DragDropPayload;
+            payload.SourceId = source_id;
+            payload.SourceParentId = source_parent_id;
+            g.DragDropActive = true;
+            g.DragDropSourceFlags = flags;
+            g.DragDropMouseButton = mouse_button;
+            if (payload.SourceId == g.ActiveId)
+                g.ActiveIdNoClearOnFocusLoss = true;
+        }
+        g.DragDropSourceFrameCount = g.FrameCount;
+        g.DragDropWithinSource = true;
+
+        if (!(flags & ImGuiDragDropFlags_SourceNoPreviewTooltip))
+        {
+            // Target can request the Source to not display its tooltip (we use a dedicated flag to make this request explicit)
+            // We unfortunately can't just modify the source flags and skip the call to BeginTooltip, as caller may be emitting contents.
+            BeginTooltip();
+            if (g.DragDropAcceptIdPrev && (g.DragDropAcceptFlags & ImGuiDragDropFlags_AcceptNoPreviewTooltip))
+            {
+                ImGuiWindow* tooltip_window = g.CurrentWindow;
+                tooltip_window->Hidden = tooltip_window->SkipItems = true;
+                tooltip_window->HiddenFramesCanSkipItems = 1;
+            }
+        }
+
+        if (!(flags & ImGuiDragDropFlags_SourceNoDisableHover) && !(flags & ImGuiDragDropFlags_SourceExtern))
+            g.LastItemData.StatusFlags &= ~ImGuiItemStatusFlags_HoveredRect;
+
+        return true;
+    }
+    return false;
+}
+
+void ImGui::EndDragDropSource()
+{
+    ImGuiContext& g = *GImGui;
+    IM_ASSERT(g.DragDropActive);
+    IM_ASSERT(g.DragDropWithinSource && "Not after a BeginDragDropSource()?");
+
+    if (!(g.DragDropSourceFlags & ImGuiDragDropFlags_SourceNoPreviewTooltip))
+        EndTooltip();
+
+    // Discard the drag if have not called SetDragDropPayload()
+    if (g.DragDropPayload.DataFrameCount == -1)
+        ClearDragDrop();
+    g.DragDropWithinSource = false;
+}
+
+// Use 'cond' to choose to submit payload on drag start or every frame
+bool ImGui::SetDragDropPayload(const char* type, const void* data, size_t data_size, ImGuiCond cond)
+{
+    ImGuiContext& g = *GImGui;
+    ImGuiPayload& payload = g.DragDropPayload;
+    if (cond == 0)
+        cond = ImGuiCond_Always;
+
+    IM_ASSERT(type != NULL);
+    IM_ASSERT(strlen(type) < IM_ARRAYSIZE(payload.DataType) && "Payload type can be at most 32 characters long");
+    IM_ASSERT((data != NULL && data_size > 0) || (data == NULL && data_size == 0));
+    IM_ASSERT(cond == ImGuiCond_Always || cond == ImGuiCond_Once);
+    IM_ASSERT(payload.SourceId != 0);                               // Not called between BeginDragDropSource() and EndDragDropSource()
+
+    if (cond == ImGuiCond_Always || payload.DataFrameCount == -1)
+    {
+        // Copy payload
+        ImStrncpy(payload.DataType, type, IM_ARRAYSIZE(payload.DataType));
+        g.DragDropPayloadBufHeap.resize(0);
+        if (data_size > sizeof(g.DragDropPayloadBufLocal))
+        {
+            // Store in heap
+            g.DragDropPayloadBufHeap.resize((int)data_size);
+            payload.Data = g.DragDropPayloadBufHeap.Data;
+            memcpy(payload.Data, data, data_size);
+        }
+        else if (data_size > 0)
+        {
+            // Store locally
+            memset(&g.DragDropPayloadBufLocal, 0, sizeof(g.DragDropPayloadBufLocal));
+            payload.Data = g.DragDropPayloadBufLocal;
+            memcpy(payload.Data, data, data_size);
+        }
+        else
+        {
+            payload.Data = NULL;
+        }
+        payload.DataSize = (int)data_size;
+    }
+    payload.DataFrameCount = g.FrameCount;
+
+    // Return whether the payload has been accepted
+    return (g.DragDropAcceptFrameCount == g.FrameCount) || (g.DragDropAcceptFrameCount == g.FrameCount - 1);
+}
+
+bool ImGui::BeginDragDropTargetCustom(const ImRect& bb, ImGuiID id)
+{
+    ImGuiContext& g = *GImGui;
+    if (!g.DragDropActive)
+        return false;
+
+    ImGuiWindow* window = g.CurrentWindow;
+    ImGuiWindow* hovered_window = g.HoveredWindowUnderMovingWindow;
+    if (hovered_window == NULL || window->RootWindow != hovered_window->RootWindow)
+        return false;
+    IM_ASSERT(id != 0);
+    if (!IsMouseHoveringRect(bb.Min, bb.Max) || (id == g.DragDropPayload.SourceId))
+        return false;
+    if (window->SkipItems)
+        return false;
+
+    IM_ASSERT(g.DragDropWithinTarget == false);
+    g.DragDropTargetRect = bb;
+    g.DragDropTargetId = id;
+    g.DragDropWithinTarget = true;
+    return true;
+}
+
+// We don't use BeginDragDropTargetCustom() and duplicate its code because:
+// 1) we use LastItemRectHoveredRect which handles items that pushes a temporarily clip rectangle in their code. Calling BeginDragDropTargetCustom(LastItemRect) would not handle them.
+// 2) and it's faster. as this code may be very frequently called, we want to early out as fast as we can.
+// Also note how the HoveredWindow test is positioned differently in both functions (in both functions we optimize for the cheapest early out case)
+bool ImGui::BeginDragDropTarget()
+{
+    ImGuiContext& g = *GImGui;
+    if (!g.DragDropActive)
+        return false;
+
+    ImGuiWindow* window = g.CurrentWindow;
+    if (!(g.LastItemData.StatusFlags & ImGuiItemStatusFlags_HoveredRect))
+        return false;
+    ImGuiWindow* hovered_window = g.HoveredWindowUnderMovingWindow;
+    if (hovered_window == NULL || window->RootWindow != hovered_window->RootWindow || window->SkipItems)
+        return false;
+
+    const ImRect& display_rect = (g.LastItemData.StatusFlags & ImGuiItemStatusFlags_HasDisplayRect) ? g.LastItemData.DisplayRect : g.LastItemData.Rect;
+    ImGuiID id = g.LastItemData.ID;
+    if (id == 0)
+    {
+        id = window->GetIDFromRectangle(display_rect);
+        KeepAliveID(id);
+    }
+    if (g.DragDropPayload.SourceId == id)
+        return false;
+
+    IM_ASSERT(g.DragDropWithinTarget == false);
+    g.DragDropTargetRect = display_rect;
+    g.DragDropTargetId = id;
+    g.DragDropWithinTarget = true;
+    return true;
+}
+
+bool ImGui::IsDragDropPayloadBeingAccepted()
+{
+    ImGuiContext& g = *GImGui;
+    return g.DragDropActive && g.DragDropAcceptIdPrev != 0;
+}
+
+const ImGuiPayload* ImGui::AcceptDragDropPayload(const char* type, ImGuiDragDropFlags flags)
+{
+    ImGuiContext& g = *GImGui;
+    ImGuiWindow* window = g.CurrentWindow;
+    ImGuiPayload& payload = g.DragDropPayload;
+    IM_ASSERT(g.DragDropActive);                        // Not called between BeginDragDropTarget() and EndDragDropTarget() ?
+    IM_ASSERT(payload.DataFrameCount != -1);            // Forgot to call EndDragDropTarget() ?
+    if (type != NULL && !payload.IsDataType(type))
+        return NULL;
+
+    // Accept smallest drag target bounding box, this allows us to nest drag targets conveniently without ordering constraints.
+    // NB: We currently accept NULL id as target. However, overlapping targets requires a unique ID to function!
+    const bool was_accepted_previously = (g.DragDropAcceptIdPrev == g.DragDropTargetId);
+    ImRect r = g.DragDropTargetRect;
+    float r_surface = r.GetWidth() * r.GetHeight();
+    if (r_surface <= g.DragDropAcceptIdCurrRectSurface)
+    {
+        g.DragDropAcceptFlags = flags;
+        g.DragDropAcceptIdCurr = g.DragDropTargetId;
+        g.DragDropAcceptIdCurrRectSurface = r_surface;
+    }
+
+    // Render default drop visuals
+    // FIXME-DRAGDROP: Settle on a proper default visuals for drop target.
+    payload.Preview = was_accepted_previously;
+    flags |= (g.DragDropSourceFlags & ImGuiDragDropFlags_AcceptNoDrawDefaultRect); // Source can also inhibit the preview (useful for external sources that lives for 1 frame)
+    if (!(flags & ImGuiDragDropFlags_AcceptNoDrawDefaultRect) && payload.Preview)
+        window->DrawList->AddRect(r.Min - ImVec2(3.5f,3.5f), r.Max + ImVec2(3.5f, 3.5f), GetColorU32(ImGuiCol_DragDropTarget), 0.0f, 0, 2.0f);
+
+    g.DragDropAcceptFrameCount = g.FrameCount;
+    payload.Delivery = was_accepted_previously && !IsMouseDown(g.DragDropMouseButton); // For extern drag sources affecting os window focus, it's easier to just test !IsMouseDown() instead of IsMouseReleased()
+    if (!payload.Delivery && !(flags & ImGuiDragDropFlags_AcceptBeforeDelivery))
+        return NULL;
+
+    return &payload;
+}
+
+const ImGuiPayload* ImGui::GetDragDropPayload()
+{
+    ImGuiContext& g = *GImGui;
+    return g.DragDropActive ? &g.DragDropPayload : NULL;
+}
+
+// We don't really use/need this now, but added it for the sake of consistency and because we might need it later.
+void ImGui::EndDragDropTarget()
+{
+    ImGuiContext& g = *GImGui;
+    IM_ASSERT(g.DragDropActive);
+    IM_ASSERT(g.DragDropWithinTarget);
+    g.DragDropWithinTarget = false;
+}
+
+//-----------------------------------------------------------------------------
+// [SECTION] LOGGING/CAPTURING
+//-----------------------------------------------------------------------------
+// All text output from the interface can be captured into tty/file/clipboard.
+// By default, tree nodes are automatically opened during logging.
+//-----------------------------------------------------------------------------
+
+// Pass text data straight to log (without being displayed)
+static inline void LogTextV(ImGuiContext& g, const char* fmt, va_list args)
+{
+    if (g.LogFile)
+    {
+        g.LogBuffer.Buf.resize(0);
+        g.LogBuffer.appendfv(fmt, args);
+        ImFileWrite(g.LogBuffer.c_str(), sizeof(char), (ImU64)g.LogBuffer.size(), g.LogFile);
+    }
+    else
+    {
+        g.LogBuffer.appendfv(fmt, args);
+    }
+}
+
+void ImGui::LogText(const char* fmt, ...)
+{
+    ImGuiContext& g = *GImGui;
+    if (!g.LogEnabled)
+        return;
+
+    va_list args;
+    va_start(args, fmt);
+    LogTextV(g, fmt, args);
+    va_end(args);
+}
+
+void ImGui::LogTextV(const char* fmt, va_list args)
+{
+    ImGuiContext& g = *GImGui;
+    if (!g.LogEnabled)
+        return;
+
+    LogTextV(g, fmt, args);
+}
+
+// Internal version that takes a position to decide on newline placement and pad items according to their depth.
+// We split text into individual lines to add current tree level padding
+// FIXME: This code is a little complicated perhaps, considering simplifying the whole system.
+void ImGui::LogRenderedText(const ImVec2* ref_pos, const char* text, const char* text_end)
+{
+    ImGuiContext& g = *GImGui;
+    ImGuiWindow* window = g.CurrentWindow;
+
+    const char* prefix = g.LogNextPrefix;
+    const char* suffix = g.LogNextSuffix;
+    g.LogNextPrefix = g.LogNextSuffix = NULL;
+
+    if (!text_end)
+        text_end = FindRenderedTextEnd(text, text_end);
+
+    const bool log_new_line = ref_pos && (ref_pos->y > g.LogLinePosY + g.Style.FramePadding.y + 1);
+    if (ref_pos)
+        g.LogLinePosY = ref_pos->y;
+    if (log_new_line)
+    {
+        LogText(IM_NEWLINE);
+        g.LogLineFirstItem = true;
+    }
+
+    if (prefix)
+        LogRenderedText(ref_pos, prefix, prefix + strlen(prefix)); // Calculate end ourself to ensure "##" are included here.
+
+    // Re-adjust padding if we have popped out of our starting depth
+    if (g.LogDepthRef > window->DC.TreeDepth)
+        g.LogDepthRef = window->DC.TreeDepth;
+    const int tree_depth = (window->DC.TreeDepth - g.LogDepthRef);
+
+    const char* text_remaining = text;
+    for (;;)
+    {
+        // Split the string. Each new line (after a '\n') is followed by indentation corresponding to the current depth of our log entry.
+        // We don't add a trailing \n yet to allow a subsequent item on the same line to be captured.
+        const char* line_start = text_remaining;
+        const char* line_end = ImStreolRange(line_start, text_end);
+        const bool is_last_line = (line_end == text_end);
+        if (line_start != line_end || !is_last_line)
+        {
+            const int line_length = (int)(line_end - line_start);
+            const int indentation = g.LogLineFirstItem ? tree_depth * 4 : 1;
+            LogText("%*s%.*s", indentation, "", line_length, line_start);
+            g.LogLineFirstItem = false;
+            if (*line_end == '\n')
+            {
+                LogText(IM_NEWLINE);
+                g.LogLineFirstItem = true;
+            }
+        }
+        if (is_last_line)
+            break;
+        text_remaining = line_end + 1;
+    }
+
+    if (suffix)
+        LogRenderedText(ref_pos, suffix, suffix + strlen(suffix));
+}
+
+// Start logging/capturing text output
+void ImGui::LogBegin(ImGuiLogType type, int auto_open_depth)
+{
+    ImGuiContext& g = *GImGui;
+    ImGuiWindow* window = g.CurrentWindow;
+    IM_ASSERT(g.LogEnabled == false);
+    IM_ASSERT(g.LogFile == NULL);
+    IM_ASSERT(g.LogBuffer.empty());
+    g.LogEnabled = true;
+    g.LogType = type;
+    g.LogNextPrefix = g.LogNextSuffix = NULL;
+    g.LogDepthRef = window->DC.TreeDepth;
+    g.LogDepthToExpand = ((auto_open_depth >= 0) ? auto_open_depth : g.LogDepthToExpandDefault);
+    g.LogLinePosY = FLT_MAX;
+    g.LogLineFirstItem = true;
+}
+
+// Important: doesn't copy underlying data, use carefully (prefix/suffix must be in scope at the time of the next LogRenderedText)
+void ImGui::LogSetNextTextDecoration(const char* prefix, const char* suffix)
+{
+    ImGuiContext& g = *GImGui;
+    g.LogNextPrefix = prefix;
+    g.LogNextSuffix = suffix;
+}
+
+void ImGui::LogToTTY(int auto_open_depth)
+{
+    ImGuiContext& g = *GImGui;
+    if (g.LogEnabled)
+        return;
+    IM_UNUSED(auto_open_depth);
+#ifndef IMGUI_DISABLE_TTY_FUNCTIONS
+    LogBegin(ImGuiLogType_TTY, auto_open_depth);
+    g.LogFile = stdout;
+#endif
+}
+
+// Start logging/capturing text output to given file
+void ImGui::LogToFile(int auto_open_depth, const char* filename)
+{
+    ImGuiContext& g = *GImGui;
+    if (g.LogEnabled)
+        return;
+
+    // FIXME: We could probably open the file in text mode "at", however note that clipboard/buffer logging will still
+    // be subject to outputting OS-incompatible carriage return if within strings the user doesn't use IM_NEWLINE.
+    // By opening the file in binary mode "ab" we have consistent output everywhere.
+    if (!filename)
+        filename = g.IO.LogFilename;
+    if (!filename || !filename[0])
+        return;
+    ImFileHandle f = ImFileOpen(filename, "ab");
+    if (!f)
+    {
+        IM_ASSERT(0);
+        return;
+    }
+
+    LogBegin(ImGuiLogType_File, auto_open_depth);
+    g.LogFile = f;
+}
+
+// Start logging/capturing text output to clipboard
+void ImGui::LogToClipboard(int auto_open_depth)
+{
+    ImGuiContext& g = *GImGui;
+    if (g.LogEnabled)
+        return;
+    LogBegin(ImGuiLogType_Clipboard, auto_open_depth);
+}
+
+void ImGui::LogToBuffer(int auto_open_depth)
+{
+    ImGuiContext& g = *GImGui;
+    if (g.LogEnabled)
+        return;
+    LogBegin(ImGuiLogType_Buffer, auto_open_depth);
+}
+
+void ImGui::LogFinish()
+{
+    ImGuiContext& g = *GImGui;
+    if (!g.LogEnabled)
+        return;
+
+    LogText(IM_NEWLINE);
+    switch (g.LogType)
+    {
+    case ImGuiLogType_TTY:
+#ifndef IMGUI_DISABLE_TTY_FUNCTIONS
+        fflush(g.LogFile);
+#endif
+        break;
+    case ImGuiLogType_File:
+        ImFileClose(g.LogFile);
+        break;
+    case ImGuiLogType_Buffer:
+        break;
+    case ImGuiLogType_Clipboard:
+        if (!g.LogBuffer.empty())
+            SetClipboardText(g.LogBuffer.begin());
+        break;
+    case ImGuiLogType_None:
+        IM_ASSERT(0);
+        break;
+    }
+
+    g.LogEnabled = false;
+    g.LogType = ImGuiLogType_None;
+    g.LogFile = NULL;
+    g.LogBuffer.clear();
+}
+
+// Helper to display logging buttons
+// FIXME-OBSOLETE: We should probably obsolete this and let the user have their own helper (this is one of the oldest function alive!)
+void ImGui::LogButtons()
+{
+    ImGuiContext& g = *GImGui;
+
+    PushID("LogButtons");
+#ifndef IMGUI_DISABLE_TTY_FUNCTIONS
+    const bool log_to_tty = Button("Log To TTY"); SameLine();
+#else
+    const bool log_to_tty = false;
+#endif
+    const bool log_to_file = Button("Log To File"); SameLine();
+    const bool log_to_clipboard = Button("Log To Clipboard"); SameLine();
+    PushAllowKeyboardFocus(false);
+    SetNextItemWidth(80.0f);
+    SliderInt("Default Depth", &g.LogDepthToExpandDefault, 0, 9, NULL);
+    PopAllowKeyboardFocus();
+    PopID();
+
+    // Start logging at the end of the function so that the buttons don't appear in the log
+    if (log_to_tty)
+        LogToTTY();
+    if (log_to_file)
+        LogToFile();
+    if (log_to_clipboard)
+        LogToClipboard();
+}
+
+
+//-----------------------------------------------------------------------------
+// [SECTION] SETTINGS
+//-----------------------------------------------------------------------------
+// - UpdateSettings() [Internal]
+// - MarkIniSettingsDirty() [Internal]
+// - CreateNewWindowSettings() [Internal]
+// - FindWindowSettings() [Internal]
+// - FindOrCreateWindowSettings() [Internal]
+// - FindSettingsHandler() [Internal]
+// - ClearIniSettings() [Internal]
+// - LoadIniSettingsFromDisk()
+// - LoadIniSettingsFromMemory()
+// - SaveIniSettingsToDisk()
+// - SaveIniSettingsToMemory()
+// - WindowSettingsHandler_***() [Internal]
+//-----------------------------------------------------------------------------
+
+// Called by NewFrame()
+void ImGui::UpdateSettings()
+{
+    // Load settings on first frame (if not explicitly loaded manually before)
+    ImGuiContext& g = *GImGui;
+    if (!g.SettingsLoaded)
+    {
+        IM_ASSERT(g.SettingsWindows.empty());
+        if (g.IO.IniFilename)
+            LoadIniSettingsFromDisk(g.IO.IniFilename);
+        g.SettingsLoaded = true;
+    }
+
+    // Save settings (with a delay after the last modification, so we don't spam disk too much)
+    if (g.SettingsDirtyTimer > 0.0f)
+    {
+        g.SettingsDirtyTimer -= g.IO.DeltaTime;
+        if (g.SettingsDirtyTimer <= 0.0f)
+        {
+            if (g.IO.IniFilename != NULL)
+                SaveIniSettingsToDisk(g.IO.IniFilename);
+            else
+                g.IO.WantSaveIniSettings = true;  // Let user know they can call SaveIniSettingsToMemory(). user will need to clear io.WantSaveIniSettings themselves.
+            g.SettingsDirtyTimer = 0.0f;
+        }
+    }
+}
+
+void ImGui::MarkIniSettingsDirty()
+{
+    ImGuiContext& g = *GImGui;
+    if (g.SettingsDirtyTimer <= 0.0f)
+        g.SettingsDirtyTimer = g.IO.IniSavingRate;
+}
+
+void ImGui::MarkIniSettingsDirty(ImGuiWindow* window)
+{
+    ImGuiContext& g = *GImGui;
+    if (!(window->Flags & ImGuiWindowFlags_NoSavedSettings))
+        if (g.SettingsDirtyTimer <= 0.0f)
+            g.SettingsDirtyTimer = g.IO.IniSavingRate;
+}
+
+ImGuiWindowSettings* ImGui::CreateNewWindowSettings(const char* name)
+{
+    ImGuiContext& g = *GImGui;
+
+#if !IMGUI_DEBUG_INI_SETTINGS
+    // Skip to the "###" marker if any. We don't skip past to match the behavior of GetID()
+    // Preserve the full string when IMGUI_DEBUG_INI_SETTINGS is set to make .ini inspection easier.
+    if (const char* p = strstr(name, "###"))
+        name = p;
+#endif
+    const size_t name_len = strlen(name);
+
+    // Allocate chunk
+    const size_t chunk_size = sizeof(ImGuiWindowSettings) + name_len + 1;
+    ImGuiWindowSettings* settings = g.SettingsWindows.alloc_chunk(chunk_size);
+    IM_PLACEMENT_NEW(settings) ImGuiWindowSettings();
+    settings->ID = ImHashStr(name, name_len);
+    memcpy(settings->GetName(), name, name_len + 1);   // Store with zero terminator
+
+    return settings;
+}
+
+ImGuiWindowSettings* ImGui::FindWindowSettings(ImGuiID id)
+{
+    ImGuiContext& g = *GImGui;
+    for (ImGuiWindowSettings* settings = g.SettingsWindows.begin(); settings != NULL; settings = g.SettingsWindows.next_chunk(settings))
+        if (settings->ID == id)
+            return settings;
+    return NULL;
+}
+
+ImGuiWindowSettings* ImGui::FindOrCreateWindowSettings(const char* name)
+{
+    if (ImGuiWindowSettings* settings = FindWindowSettings(ImHashStr(name)))
+        return settings;
+    return CreateNewWindowSettings(name);
+}
+
+void ImGui::AddSettingsHandler(const ImGuiSettingsHandler* handler)
+{
+    ImGuiContext& g = *GImGui;
+    IM_ASSERT(FindSettingsHandler(handler->TypeName) == NULL);
+    g.SettingsHandlers.push_back(*handler);
+}
+
+void ImGui::RemoveSettingsHandler(const char* type_name)
+{
+    ImGuiContext& g = *GImGui;
+    if (ImGuiSettingsHandler* handler = FindSettingsHandler(type_name))
+        g.SettingsHandlers.erase(handler);
+}
+
+ImGuiSettingsHandler* ImGui::FindSettingsHandler(const char* type_name)
+{
+    ImGuiContext& g = *GImGui;
+    const ImGuiID type_hash = ImHashStr(type_name);
+    for (int handler_n = 0; handler_n < g.SettingsHandlers.Size; handler_n++)
+        if (g.SettingsHandlers[handler_n].TypeHash == type_hash)
+            return &g.SettingsHandlers[handler_n];
+    return NULL;
+}
+
+void ImGui::ClearIniSettings()
+{
+    ImGuiContext& g = *GImGui;
+    g.SettingsIniData.clear();
+    for (int handler_n = 0; handler_n < g.SettingsHandlers.Size; handler_n++)
+        if (g.SettingsHandlers[handler_n].ClearAllFn)
+            g.SettingsHandlers[handler_n].ClearAllFn(&g, &g.SettingsHandlers[handler_n]);
+}
+
+void ImGui::LoadIniSettingsFromDisk(const char* ini_filename)
+{
+    size_t file_data_size = 0;
+    char* file_data = (char*)ImFileLoadToMemory(ini_filename, "rb", &file_data_size);
+    if (!file_data)
+        return;
+    if (file_data_size > 0)
+        LoadIniSettingsFromMemory(file_data, (size_t)file_data_size);
+    IM_FREE(file_data);
+}
+
+// Zero-tolerance, no error reporting, cheap .ini parsing
+void ImGui::LoadIniSettingsFromMemory(const char* ini_data, size_t ini_size)
+{
+    ImGuiContext& g = *GImGui;
+    IM_ASSERT(g.Initialized);
+    //IM_ASSERT(!g.WithinFrameScope && "Cannot be called between NewFrame() and EndFrame()");
+    //IM_ASSERT(g.SettingsLoaded == false && g.FrameCount == 0);
+
+    // For user convenience, we allow passing a non zero-terminated string (hence the ini_size parameter).
+    // For our convenience and to make the code simpler, we'll also write zero-terminators within the buffer. So let's create a writable copy..
+    if (ini_size == 0)
+        ini_size = strlen(ini_data);
+    g.SettingsIniData.Buf.resize((int)ini_size + 1);
+    char* const buf = g.SettingsIniData.Buf.Data;
+    char* const buf_end = buf + ini_size;
+    memcpy(buf, ini_data, ini_size);
+    buf_end[0] = 0;
+
+    // Call pre-read handlers
+    // Some types will clear their data (e.g. dock information) some types will allow merge/override (window)
+    for (int handler_n = 0; handler_n < g.SettingsHandlers.Size; handler_n++)
+        if (g.SettingsHandlers[handler_n].ReadInitFn)
+            g.SettingsHandlers[handler_n].ReadInitFn(&g, &g.SettingsHandlers[handler_n]);
+
+    void* entry_data = NULL;
+    ImGuiSettingsHandler* entry_handler = NULL;
+
+    char* line_end = NULL;
+    for (char* line = buf; line < buf_end; line = line_end + 1)
+    {
+        // Skip new lines markers, then find end of the line
+        while (*line == '\n' || *line == '\r')
+            line++;
+        line_end = line;
+        while (line_end < buf_end && *line_end != '\n' && *line_end != '\r')
+            line_end++;
+        line_end[0] = 0;
+        if (line[0] == ';')
+            continue;
+        if (line[0] == '[' && line_end > line && line_end[-1] == ']')
+        {
+            // Parse "[Type][Name]". Note that 'Name' can itself contains [] characters, which is acceptable with the current format and parsing code.
+            line_end[-1] = 0;
+            const char* name_end = line_end - 1;
+            const char* type_start = line + 1;
+            char* type_end = (char*)(void*)ImStrchrRange(type_start, name_end, ']');
+            const char* name_start = type_end ? ImStrchrRange(type_end + 1, name_end, '[') : NULL;
+            if (!type_end || !name_start)
+                continue;
+            *type_end = 0; // Overwrite first ']'
+            name_start++;  // Skip second '['
+            entry_handler = FindSettingsHandler(type_start);
+            entry_data = entry_handler ? entry_handler->ReadOpenFn(&g, entry_handler, name_start) : NULL;
+        }
+        else if (entry_handler != NULL && entry_data != NULL)
+        {
+            // Let type handler parse the line
+            entry_handler->ReadLineFn(&g, entry_handler, entry_data, line);
+        }
+    }
+    g.SettingsLoaded = true;
+
+    // [DEBUG] Restore untouched copy so it can be browsed in Metrics (not strictly necessary)
+    memcpy(buf, ini_data, ini_size);
+
+    // Call post-read handlers
+    for (int handler_n = 0; handler_n < g.SettingsHandlers.Size; handler_n++)
+        if (g.SettingsHandlers[handler_n].ApplyAllFn)
+            g.SettingsHandlers[handler_n].ApplyAllFn(&g, &g.SettingsHandlers[handler_n]);
+}
+
+void ImGui::SaveIniSettingsToDisk(const char* ini_filename)
+{
+    ImGuiContext& g = *GImGui;
+    g.SettingsDirtyTimer = 0.0f;
+    if (!ini_filename)
+        return;
+
+    size_t ini_data_size = 0;
+    const char* ini_data = SaveIniSettingsToMemory(&ini_data_size);
+    ImFileHandle f = ImFileOpen(ini_filename, "wt");
+    if (!f)
+        return;
+    ImFileWrite(ini_data, sizeof(char), ini_data_size, f);
+    ImFileClose(f);
+}
+
+// Call registered handlers (e.g. SettingsHandlerWindow_WriteAll() + custom handlers) to write their stuff into a text buffer
+const char* ImGui::SaveIniSettingsToMemory(size_t* out_size)
+{
+    ImGuiContext& g = *GImGui;
+    g.SettingsDirtyTimer = 0.0f;
+    g.SettingsIniData.Buf.resize(0);
+    g.SettingsIniData.Buf.push_back(0);
+    for (int handler_n = 0; handler_n < g.SettingsHandlers.Size; handler_n++)
+    {
+        ImGuiSettingsHandler* handler = &g.SettingsHandlers[handler_n];
+        handler->WriteAllFn(&g, handler, &g.SettingsIniData);
+    }
+    if (out_size)
+        *out_size = (size_t)g.SettingsIniData.size();
+    return g.SettingsIniData.c_str();
+}
+
+static void WindowSettingsHandler_ClearAll(ImGuiContext* ctx, ImGuiSettingsHandler*)
+{
+    ImGuiContext& g = *ctx;
+    for (int i = 0; i != g.Windows.Size; i++)
+        g.Windows[i]->SettingsOffset = -1;
+    g.SettingsWindows.clear();
+}
+
+static void* WindowSettingsHandler_ReadOpen(ImGuiContext*, ImGuiSettingsHandler*, const char* name)
+{
+    ImGuiWindowSettings* settings = ImGui::FindOrCreateWindowSettings(name);
+    ImGuiID id = settings->ID;
+    *settings = ImGuiWindowSettings(); // Clear existing if recycling previous entry
+    settings->ID = id;
+    settings->WantApply = true;
+    return (void*)settings;
+}
+
+static void WindowSettingsHandler_ReadLine(ImGuiContext*, ImGuiSettingsHandler*, void* entry, const char* line)
+{
+    ImGuiWindowSettings* settings = (ImGuiWindowSettings*)entry;
+    int x, y;
+    int i;
+    if (sscanf(line, "Pos=%i,%i", &x, &y) == 2)         { settings->Pos = ImVec2ih((short)x, (short)y); }
+    else if (sscanf(line, "Size=%i,%i", &x, &y) == 2)   { settings->Size = ImVec2ih((short)x, (short)y); }
+    else if (sscanf(line, "Collapsed=%d", &i) == 1)     { settings->Collapsed = (i != 0); }
+}
+
+// Apply to existing windows (if any)
+static void WindowSettingsHandler_ApplyAll(ImGuiContext* ctx, ImGuiSettingsHandler*)
+{
+    ImGuiContext& g = *ctx;
+    for (ImGuiWindowSettings* settings = g.SettingsWindows.begin(); settings != NULL; settings = g.SettingsWindows.next_chunk(settings))
+        if (settings->WantApply)
+        {
+            if (ImGuiWindow* window = ImGui::FindWindowByID(settings->ID))
+                ApplyWindowSettings(window, settings);
+            settings->WantApply = false;
+        }
+}
+
+static void WindowSettingsHandler_WriteAll(ImGuiContext* ctx, ImGuiSettingsHandler* handler, ImGuiTextBuffer* buf)
+{
+    // Gather data from windows that were active during this session
+    // (if a window wasn't opened in this session we preserve its settings)
+    ImGuiContext& g = *ctx;
+    for (int i = 0; i != g.Windows.Size; i++)
+    {
+        ImGuiWindow* window = g.Windows[i];
+        if (window->Flags & ImGuiWindowFlags_NoSavedSettings)
+            continue;
+
+        ImGuiWindowSettings* settings = (window->SettingsOffset != -1) ? g.SettingsWindows.ptr_from_offset(window->SettingsOffset) : ImGui::FindWindowSettings(window->ID);
+        if (!settings)
+        {
+            settings = ImGui::CreateNewWindowSettings(window->Name);
+            window->SettingsOffset = g.SettingsWindows.offset_from_ptr(settings);
+        }
+        IM_ASSERT(settings->ID == window->ID);
+        settings->Pos = ImVec2ih(window->Pos);
+        settings->Size = ImVec2ih(window->SizeFull);
+
+        settings->Collapsed = window->Collapsed;
+    }
+
+    // Write to text buffer
+    buf->reserve(buf->size() + g.SettingsWindows.size() * 6); // ballpark reserve
+    for (ImGuiWindowSettings* settings = g.SettingsWindows.begin(); settings != NULL; settings = g.SettingsWindows.next_chunk(settings))
+    {
+        const char* settings_name = settings->GetName();
+        buf->appendf("[%s][%s]\n", handler->TypeName, settings_name);
+        buf->appendf("Pos=%d,%d\n", settings->Pos.x, settings->Pos.y);
+        buf->appendf("Size=%d,%d\n", settings->Size.x, settings->Size.y);
+        buf->appendf("Collapsed=%d\n", settings->Collapsed);
+        buf->append("\n");
+    }
+}
+
+
+//-----------------------------------------------------------------------------
+// [SECTION] VIEWPORTS, PLATFORM WINDOWS
+//-----------------------------------------------------------------------------
+// - GetMainViewport()
+// - SetWindowViewport() [Internal]
+// - UpdateViewportsNewFrame() [Internal]
+// (this section is more complete in the 'docking' branch)
+//-----------------------------------------------------------------------------
+
+ImGuiViewport* ImGui::GetMainViewport()
+{
+    ImGuiContext& g = *GImGui;
+    return g.Viewports[0];
+}
+
+void ImGui::SetWindowViewport(ImGuiWindow* window, ImGuiViewportP* viewport)
+{
+    window->Viewport = viewport;
+}
+
+// Update viewports and monitor infos
+static void ImGui::UpdateViewportsNewFrame()
+{
+    ImGuiContext& g = *GImGui;
+    IM_ASSERT(g.Viewports.Size == 1);
+
+    // Update main viewport with current platform position.
+    // FIXME-VIEWPORT: Size is driven by backend/user code for backward-compatibility but we should aim to make this more consistent.
+    ImGuiViewportP* main_viewport = g.Viewports[0];
+    main_viewport->Flags = ImGuiViewportFlags_IsPlatformWindow | ImGuiViewportFlags_OwnedByApp;
+    main_viewport->Pos = ImVec2(0.0f, 0.0f);
+    main_viewport->Size = g.IO.DisplaySize;
+
+    for (int n = 0; n < g.Viewports.Size; n++)
+    {
+        ImGuiViewportP* viewport = g.Viewports[n];
+
+        // Lock down space taken by menu bars and status bars, reset the offset for fucntions like BeginMainMenuBar() to alter them again.
+        viewport->WorkOffsetMin = viewport->BuildWorkOffsetMin;
+        viewport->WorkOffsetMax = viewport->BuildWorkOffsetMax;
+        viewport->BuildWorkOffsetMin = viewport->BuildWorkOffsetMax = ImVec2(0.0f, 0.0f);
+        viewport->UpdateWorkRect();
+    }
+}
+
+//-----------------------------------------------------------------------------
+// [SECTION] DOCKING
+//-----------------------------------------------------------------------------
+
+// (this section is filled in the 'docking' branch)
+
+
+//-----------------------------------------------------------------------------
+// [SECTION] PLATFORM DEPENDENT HELPERS
+//-----------------------------------------------------------------------------
+
+#if defined(_WIN32) && !defined(IMGUI_DISABLE_WIN32_FUNCTIONS) && !defined(IMGUI_DISABLE_WIN32_DEFAULT_CLIPBOARD_FUNCTIONS)
+
+#ifdef _MSC_VER
+#pragma comment(lib, "user32")
+#pragma comment(lib, "kernel32")
+#endif
+
+// Win32 clipboard implementation
+// We use g.ClipboardHandlerData for temporary storage to ensure it is freed on Shutdown()
+static const char* GetClipboardTextFn_DefaultImpl(void*)
+{
+    ImGuiContext& g = *GImGui;
+    g.ClipboardHandlerData.clear();
+    if (!::OpenClipboard(NULL))
+        return NULL;
+    HANDLE wbuf_handle = ::GetClipboardData(CF_UNICODETEXT);
+    if (wbuf_handle == NULL)
+    {
+        ::CloseClipboard();
+        return NULL;
+    }
+    if (const WCHAR* wbuf_global = (const WCHAR*)::GlobalLock(wbuf_handle))
+    {
+        int buf_len = ::WideCharToMultiByte(CP_UTF8, 0, wbuf_global, -1, NULL, 0, NULL, NULL);
+        g.ClipboardHandlerData.resize(buf_len);
+        ::WideCharToMultiByte(CP_UTF8, 0, wbuf_global, -1, g.ClipboardHandlerData.Data, buf_len, NULL, NULL);
+    }
+    ::GlobalUnlock(wbuf_handle);
+    ::CloseClipboard();
+    return g.ClipboardHandlerData.Data;
+}
+
+static void SetClipboardTextFn_DefaultImpl(void*, const char* text)
+{
+    if (!::OpenClipboard(NULL))
+        return;
+    const int wbuf_length = ::MultiByteToWideChar(CP_UTF8, 0, text, -1, NULL, 0);
+    HGLOBAL wbuf_handle = ::GlobalAlloc(GMEM_MOVEABLE, (SIZE_T)wbuf_length * sizeof(WCHAR));
+    if (wbuf_handle == NULL)
+    {
+        ::CloseClipboard();
+        return;
+    }
+    WCHAR* wbuf_global = (WCHAR*)::GlobalLock(wbuf_handle);
+    ::MultiByteToWideChar(CP_UTF8, 0, text, -1, wbuf_global, wbuf_length);
+    ::GlobalUnlock(wbuf_handle);
+    ::EmptyClipboard();
+    if (::SetClipboardData(CF_UNICODETEXT, wbuf_handle) == NULL)
+        ::GlobalFree(wbuf_handle);
+    ::CloseClipboard();
+}
+
+#elif defined(__APPLE__) && TARGET_OS_OSX && defined(IMGUI_ENABLE_OSX_DEFAULT_CLIPBOARD_FUNCTIONS)
+
+#include <Carbon/Carbon.h>  // Use old API to avoid need for separate .mm file
+static PasteboardRef main_clipboard = 0;
+
+// OSX clipboard implementation
+// If you enable this you will need to add '-framework ApplicationServices' to your linker command-line!
+static void SetClipboardTextFn_DefaultImpl(void*, const char* text)
+{
+    if (!main_clipboard)
+        PasteboardCreate(kPasteboardClipboard, &main_clipboard);
+    PasteboardClear(main_clipboard);
+    CFDataRef cf_data = CFDataCreate(kCFAllocatorDefault, (const UInt8*)text, strlen(text));
+    if (cf_data)
+    {
+        PasteboardPutItemFlavor(main_clipboard, (PasteboardItemID)1, CFSTR("public.utf8-plain-text"), cf_data, 0);
+        CFRelease(cf_data);
+    }
+}
+
+static const char* GetClipboardTextFn_DefaultImpl(void*)
+{
+    if (!main_clipboard)
+        PasteboardCreate(kPasteboardClipboard, &main_clipboard);
+    PasteboardSynchronize(main_clipboard);
+
+    ItemCount item_count = 0;
+    PasteboardGetItemCount(main_clipboard, &item_count);
+    for (ItemCount i = 0; i < item_count; i++)
+    {
+        PasteboardItemID item_id = 0;
+        PasteboardGetItemIdentifier(main_clipboard, i + 1, &item_id);
+        CFArrayRef flavor_type_array = 0;
+        PasteboardCopyItemFlavors(main_clipboard, item_id, &flavor_type_array);
+        for (CFIndex j = 0, nj = CFArrayGetCount(flavor_type_array); j < nj; j++)
+        {
+            CFDataRef cf_data;
+            if (PasteboardCopyItemFlavorData(main_clipboard, item_id, CFSTR("public.utf8-plain-text"), &cf_data) == noErr)
+            {
+                ImGuiContext& g = *GImGui;
+                g.ClipboardHandlerData.clear();
+                int length = (int)CFDataGetLength(cf_data);
+                g.ClipboardHandlerData.resize(length + 1);
+                CFDataGetBytes(cf_data, CFRangeMake(0, length), (UInt8*)g.ClipboardHandlerData.Data);
+                g.ClipboardHandlerData[length] = 0;
+                CFRelease(cf_data);
+                return g.ClipboardHandlerData.Data;
+            }
+        }
+    }
+    return NULL;
+}
+
+#else
+
+// Local Dear ImGui-only clipboard implementation, if user hasn't defined better clipboard handlers.
+static const char* GetClipboardTextFn_DefaultImpl(void*)
+{
+    ImGuiContext& g = *GImGui;
+    return g.ClipboardHandlerData.empty() ? NULL : g.ClipboardHandlerData.begin();
+}
+
+static void SetClipboardTextFn_DefaultImpl(void*, const char* text)
+{
+    ImGuiContext& g = *GImGui;
+    g.ClipboardHandlerData.clear();
+    const char* text_end = text + strlen(text);
+    g.ClipboardHandlerData.resize((int)(text_end - text) + 1);
+    memcpy(&g.ClipboardHandlerData[0], text, (size_t)(text_end - text));
+    g.ClipboardHandlerData[(int)(text_end - text)] = 0;
+}
+
+#endif
+
+// Win32 API IME support (for Asian languages, etc.)
+#if defined(_WIN32) && !defined(IMGUI_DISABLE_WIN32_FUNCTIONS) && !defined(IMGUI_DISABLE_WIN32_DEFAULT_IME_FUNCTIONS)
+
+#include <imm.h>
+#ifdef _MSC_VER
+#pragma comment(lib, "imm32")
+#endif
+
+static void SetPlatformImeDataFn_DefaultImpl(ImGuiViewport* viewport, ImGuiPlatformImeData* data)
+{
+    // Notify OS Input Method Editor of text input position
+    HWND hwnd = (HWND)viewport->PlatformHandleRaw;
+#ifndef IMGUI_DISABLE_OBSOLETE_FUNCTIONS
+    if (hwnd == 0)
+        hwnd = (HWND)ImGui::GetIO().ImeWindowHandle;
+#endif
+    if (hwnd == 0)
+        return;
+
+    ::ImmAssociateContextEx(hwnd, NULL, data->WantVisible ? IACE_DEFAULT : 0);
+
+    if (HIMC himc = ::ImmGetContext(hwnd))
+    {
+        COMPOSITIONFORM composition_form = {};
+        composition_form.ptCurrentPos.x = (LONG)data->InputPos.x;
+        composition_form.ptCurrentPos.y = (LONG)data->InputPos.y;
+        composition_form.dwStyle = CFS_FORCE_POSITION;
+        ::ImmSetCompositionWindow(himc, &composition_form);
+        CANDIDATEFORM candidate_form = {};
+        candidate_form.dwStyle = CFS_CANDIDATEPOS;
+        candidate_form.ptCurrentPos.x = (LONG)data->InputPos.x;
+        candidate_form.ptCurrentPos.y = (LONG)data->InputPos.y;
+        ::ImmSetCandidateWindow(himc, &candidate_form);
+        ::ImmReleaseContext(hwnd, himc);
+    }
+}
+
+#else
+
+static void SetPlatformImeDataFn_DefaultImpl(ImGuiViewport*, ImGuiPlatformImeData*) {}
+
+#endif
+
+//-----------------------------------------------------------------------------
+// [SECTION] METRICS/DEBUGGER WINDOW
+//-----------------------------------------------------------------------------
+// - RenderViewportThumbnail() [Internal]
+// - RenderViewportsThumbnails() [Internal]
+// - DebugTextEncoding()
+// - MetricsHelpMarker() [Internal]
+// - ShowFontAtlas() [Internal]
+// - ShowMetricsWindow()
+// - DebugNodeColumns() [Internal]
+// - DebugNodeDrawList() [Internal]
+// - DebugNodeDrawCmdShowMeshAndBoundingBox() [Internal]
+// - DebugNodeFont() [Internal]
+// - DebugNodeFontGlyph() [Internal]
+// - DebugNodeStorage() [Internal]
+// - DebugNodeTabBar() [Internal]
+// - DebugNodeViewport() [Internal]
+// - DebugNodeWindow() [Internal]
+// - DebugNodeWindowSettings() [Internal]
+// - DebugNodeWindowsList() [Internal]
+// - DebugNodeWindowsListByBeginStackParent() [Internal]
+//-----------------------------------------------------------------------------
+
+#ifndef IMGUI_DISABLE_DEBUG_TOOLS
+
+void ImGui::DebugRenderViewportThumbnail(ImDrawList* draw_list, ImGuiViewportP* viewport, const ImRect& bb)
+{
+    ImGuiContext& g = *GImGui;
+    ImGuiWindow* window = g.CurrentWindow;
+
+    ImVec2 scale = bb.GetSize() / viewport->Size;
+    ImVec2 off = bb.Min - viewport->Pos * scale;
+    float alpha_mul = 1.0f;
+    window->DrawList->AddRectFilled(bb.Min, bb.Max, GetColorU32(ImGuiCol_Border, alpha_mul * 0.40f));
+    for (int i = 0; i != g.Windows.Size; i++)
+    {
+        ImGuiWindow* thumb_window = g.Windows[i];
+        if (!thumb_window->WasActive || (thumb_window->Flags & ImGuiWindowFlags_ChildWindow))
+            continue;
+
+        ImRect thumb_r = thumb_window->Rect();
+        ImRect title_r = thumb_window->TitleBarRect();
+        thumb_r = ImRect(ImFloor(off + thumb_r.Min * scale), ImFloor(off +  thumb_r.Max * scale));
+        title_r = ImRect(ImFloor(off + title_r.Min * scale), ImFloor(off +  ImVec2(title_r.Max.x, title_r.Min.y) * scale) + ImVec2(0,5)); // Exaggerate title bar height
+        thumb_r.ClipWithFull(bb);
+        title_r.ClipWithFull(bb);
+        const bool window_is_focused = (g.NavWindow && thumb_window->RootWindowForTitleBarHighlight == g.NavWindow->RootWindowForTitleBarHighlight);
+        window->DrawList->AddRectFilled(thumb_r.Min, thumb_r.Max, GetColorU32(ImGuiCol_WindowBg, alpha_mul));
+        window->DrawList->AddRectFilled(title_r.Min, title_r.Max, GetColorU32(window_is_focused ? ImGuiCol_TitleBgActive : ImGuiCol_TitleBg, alpha_mul));
+        window->DrawList->AddRect(thumb_r.Min, thumb_r.Max, GetColorU32(ImGuiCol_Border, alpha_mul));
+        window->DrawList->AddText(g.Font, g.FontSize * 1.0f, title_r.Min, GetColorU32(ImGuiCol_Text, alpha_mul), thumb_window->Name, FindRenderedTextEnd(thumb_window->Name));
+    }
+    draw_list->AddRect(bb.Min, bb.Max, GetColorU32(ImGuiCol_Border, alpha_mul));
+}
+
+static void RenderViewportsThumbnails()
+{
+    ImGuiContext& g = *GImGui;
+    ImGuiWindow* window = g.CurrentWindow;
+
+    // We don't display full monitor bounds (we could, but it often looks awkward), instead we display just enough to cover all of our viewports.
+    float SCALE = 1.0f / 8.0f;
+    ImRect bb_full(FLT_MAX, FLT_MAX, -FLT_MAX, -FLT_MAX);
+    for (int n = 0; n < g.Viewports.Size; n++)
+        bb_full.Add(g.Viewports[n]->GetMainRect());
+    ImVec2 p = window->DC.CursorPos;
+    ImVec2 off = p - bb_full.Min * SCALE;
+    for (int n = 0; n < g.Viewports.Size; n++)
+    {
+        ImGuiViewportP* viewport = g.Viewports[n];
+        ImRect viewport_draw_bb(off + (viewport->Pos) * SCALE, off + (viewport->Pos + viewport->Size) * SCALE);
+        ImGui::DebugRenderViewportThumbnail(window->DrawList, viewport, viewport_draw_bb);
+    }
+    ImGui::Dummy(bb_full.GetSize() * SCALE);
+}
+
+// Helper tool to diagnose between text encoding issues and font loading issues. Pass your UTF-8 string and verify that there are correct.
+void ImGui::DebugTextEncoding(const char* str)
+{
+    Text("Text: \"%s\"", str);
+    if (!BeginTable("list", 4, ImGuiTableFlags_Borders | ImGuiTableFlags_RowBg | ImGuiTableFlags_SizingFixedFit))
+        return;
+    TableSetupColumn("Offset");
+    TableSetupColumn("UTF-8");
+    TableSetupColumn("Glyph");
+    TableSetupColumn("Codepoint");
+    TableHeadersRow();
+    for (const char* p = str; *p != 0; )
+    {
+        unsigned int c;
+        const int c_utf8_len = ImTextCharFromUtf8(&c, p, NULL);
+        TableNextColumn();
+        Text("%d", (int)(p - str));
+        TableNextColumn();
+        for (int byte_index = 0; byte_index < c_utf8_len; byte_index++)
+        {
+            if (byte_index > 0)
+                SameLine();
+            Text("0x%02X", (int)(unsigned char)p[byte_index]);
+        }
+        TableNextColumn();
+        if (GetFont()->FindGlyphNoFallback((ImWchar)c))
+            TextUnformatted(p, p + c_utf8_len);
+        else
+            TextUnformatted((c == IM_UNICODE_CODEPOINT_INVALID) ? "[invalid]" : "[missing]");
+        TableNextColumn();
+        Text("U+%04X", (int)c);
+        p += c_utf8_len;
+    }
+    EndTable();
+}
+
+// Avoid naming collision with imgui_demo.cpp's HelpMarker() for unity builds.
+static void MetricsHelpMarker(const char* desc)
+{
+    ImGui::TextDisabled("(?)");
+    if (ImGui::IsItemHovered())
+    {
+        ImGui::BeginTooltip();
+        ImGui::PushTextWrapPos(ImGui::GetFontSize() * 35.0f);
+        ImGui::TextUnformatted(desc);
+        ImGui::PopTextWrapPos();
+        ImGui::EndTooltip();
+    }
+}
+
+// [DEBUG] List fonts in a font atlas and display its texture
+void ImGui::ShowFontAtlas(ImFontAtlas* atlas)
+{
+    for (int i = 0; i < atlas->Fonts.Size; i++)
+    {
+        ImFont* font = atlas->Fonts[i];
+        PushID(font);
+        DebugNodeFont(font);
+        PopID();
+    }
+    if (TreeNode("Atlas texture", "Atlas texture (%dx%d pixels)", atlas->TexWidth, atlas->TexHeight))
+    {
+        ImVec4 tint_col = ImVec4(1.0f, 1.0f, 1.0f, 1.0f);
+        ImVec4 border_col = ImVec4(1.0f, 1.0f, 1.0f, 0.5f);
+        Image(atlas->TexID, ImVec2((float)atlas->TexWidth, (float)atlas->TexHeight), ImVec2(0.0f, 0.0f), ImVec2(1.0f, 1.0f), tint_col, border_col);
+        TreePop();
+    }
+}
+
+void ImGui::ShowMetricsWindow(bool* p_open)
+{
+    ImGuiContext& g = *GImGui;
+    ImGuiIO& io = g.IO;
+    ImGuiMetricsConfig* cfg = &g.DebugMetricsConfig;
+    if (cfg->ShowDebugLog)
+        ShowDebugLogWindow(&cfg->ShowDebugLog);
+    if (cfg->ShowStackTool)
+        ShowStackToolWindow(&cfg->ShowStackTool);
+
+    if (!Begin("Dear ImGui Metrics/Debugger", p_open) || GetCurrentWindow()->BeginCount > 1)
+    {
+        End();
+        return;
+    }
+
+    // Basic info
+    Text("Dear ImGui %s", GetVersion());
+    Text("Application average %.3f ms/frame (%.1f FPS)", 1000.0f / io.Framerate, io.Framerate);
+    Text("%d vertices, %d indices (%d triangles)", io.MetricsRenderVertices, io.MetricsRenderIndices, io.MetricsRenderIndices / 3);
+    Text("%d visible windows, %d active allocations", io.MetricsRenderWindows, io.MetricsActiveAllocations);
+    //SameLine(); if (SmallButton("GC")) { g.GcCompactAll = true; }
+
+    Separator();
+
+    // Debugging enums
+    enum { WRT_OuterRect, WRT_OuterRectClipped, WRT_InnerRect, WRT_InnerClipRect, WRT_WorkRect, WRT_Content, WRT_ContentIdeal, WRT_ContentRegionRect, WRT_Count }; // Windows Rect Type
+    const char* wrt_rects_names[WRT_Count] = { "OuterRect", "OuterRectClipped", "InnerRect", "InnerClipRect", "WorkRect", "Content", "ContentIdeal", "ContentRegionRect" };
+    enum { TRT_OuterRect, TRT_InnerRect, TRT_WorkRect, TRT_HostClipRect, TRT_InnerClipRect, TRT_BackgroundClipRect, TRT_ColumnsRect, TRT_ColumnsWorkRect, TRT_ColumnsClipRect, TRT_ColumnsContentHeadersUsed, TRT_ColumnsContentHeadersIdeal, TRT_ColumnsContentFrozen, TRT_ColumnsContentUnfrozen, TRT_Count }; // Tables Rect Type
+    const char* trt_rects_names[TRT_Count] = { "OuterRect", "InnerRect", "WorkRect", "HostClipRect", "InnerClipRect", "BackgroundClipRect", "ColumnsRect", "ColumnsWorkRect", "ColumnsClipRect", "ColumnsContentHeadersUsed", "ColumnsContentHeadersIdeal", "ColumnsContentFrozen", "ColumnsContentUnfrozen" };
+    if (cfg->ShowWindowsRectsType < 0)
+        cfg->ShowWindowsRectsType = WRT_WorkRect;
+    if (cfg->ShowTablesRectsType < 0)
+        cfg->ShowTablesRectsType = TRT_WorkRect;
+
+    struct Funcs
+    {
+        static ImRect GetTableRect(ImGuiTable* table, int rect_type, int n)
+        {
+            ImGuiTableInstanceData* table_instance = TableGetInstanceData(table, table->InstanceCurrent); // Always using last submitted instance
+            if (rect_type == TRT_OuterRect)                     { return table->OuterRect; }
+            else if (rect_type == TRT_InnerRect)                { return table->InnerRect; }
+            else if (rect_type == TRT_WorkRect)                 { return table->WorkRect; }
+            else if (rect_type == TRT_HostClipRect)             { return table->HostClipRect; }
+            else if (rect_type == TRT_InnerClipRect)            { return table->InnerClipRect; }
+            else if (rect_type == TRT_BackgroundClipRect)       { return table->BgClipRect; }
+            else if (rect_type == TRT_ColumnsRect)              { ImGuiTableColumn* c = &table->Columns[n]; return ImRect(c->MinX, table->InnerClipRect.Min.y, c->MaxX, table->InnerClipRect.Min.y + table_instance->LastOuterHeight); }
+            else if (rect_type == TRT_ColumnsWorkRect)          { ImGuiTableColumn* c = &table->Columns[n]; return ImRect(c->WorkMinX, table->WorkRect.Min.y, c->WorkMaxX, table->WorkRect.Max.y); }
+            else if (rect_type == TRT_ColumnsClipRect)          { ImGuiTableColumn* c = &table->Columns[n]; return c->ClipRect; }
+            else if (rect_type == TRT_ColumnsContentHeadersUsed){ ImGuiTableColumn* c = &table->Columns[n]; return ImRect(c->WorkMinX, table->InnerClipRect.Min.y, c->ContentMaxXHeadersUsed, table->InnerClipRect.Min.y + table_instance->LastFirstRowHeight); } // Note: y1/y2 not always accurate
+            else if (rect_type == TRT_ColumnsContentHeadersIdeal){ImGuiTableColumn* c = &table->Columns[n]; return ImRect(c->WorkMinX, table->InnerClipRect.Min.y, c->ContentMaxXHeadersIdeal, table->InnerClipRect.Min.y + table_instance->LastFirstRowHeight); }
+            else if (rect_type == TRT_ColumnsContentFrozen)     { ImGuiTableColumn* c = &table->Columns[n]; return ImRect(c->WorkMinX, table->InnerClipRect.Min.y, c->ContentMaxXFrozen, table->InnerClipRect.Min.y + table_instance->LastFirstRowHeight); }
+            else if (rect_type == TRT_ColumnsContentUnfrozen)   { ImGuiTableColumn* c = &table->Columns[n]; return ImRect(c->WorkMinX, table->InnerClipRect.Min.y + table_instance->LastFirstRowHeight, c->ContentMaxXUnfrozen, table->InnerClipRect.Max.y); }
+            IM_ASSERT(0);
+            return ImRect();
+        }
+
+        static ImRect GetWindowRect(ImGuiWindow* window, int rect_type)
+        {
+            if (rect_type == WRT_OuterRect)                 { return window->Rect(); }
+            else if (rect_type == WRT_OuterRectClipped)     { return window->OuterRectClipped; }
+            else if (rect_type == WRT_InnerRect)            { return window->InnerRect; }
+            else if (rect_type == WRT_InnerClipRect)        { return window->InnerClipRect; }
+            else if (rect_type == WRT_WorkRect)             { return window->WorkRect; }
+            else if (rect_type == WRT_Content)       { ImVec2 min = window->InnerRect.Min - window->Scroll + window->WindowPadding; return ImRect(min, min + window->ContentSize); }
+            else if (rect_type == WRT_ContentIdeal)         { ImVec2 min = window->InnerRect.Min - window->Scroll + window->WindowPadding; return ImRect(min, min + window->ContentSizeIdeal); }
+            else if (rect_type == WRT_ContentRegionRect)    { return window->ContentRegionRect; }
+            IM_ASSERT(0);
+            return ImRect();
+        }
+    };
+
+    // Tools
+    if (TreeNode("Tools"))
+    {
+        bool show_encoding_viewer = TreeNode("UTF-8 Encoding viewer");
+        SameLine();
+        MetricsHelpMarker("You can also call ImGui::DebugTextEncoding() from your code with a given string to test that your UTF-8 encoding settings are correct.");
+        if (show_encoding_viewer)
+        {
+            static char buf[100] = "";
+            SetNextItemWidth(-FLT_MIN);
+            InputText("##Text", buf, IM_ARRAYSIZE(buf));
+            if (buf[0] != 0)
+                DebugTextEncoding(buf);
+            TreePop();
+        }
+
+        // The Item Picker tool is super useful to visually select an item and break into the call-stack of where it was submitted.
+        if (Checkbox("Show Item Picker", &g.DebugItemPickerActive) && g.DebugItemPickerActive)
+            DebugStartItemPicker();
+        SameLine();
+        MetricsHelpMarker("Will call the IM_DEBUG_BREAK() macro to break in debugger.\nWarning: If you don't have a debugger attached, this will probably crash.");
+
+        // Stack Tool is your best friend!
+        Checkbox("Show Debug Log", &cfg->ShowDebugLog);
+        SameLine();
+        MetricsHelpMarker("You can also call ImGui::ShowDebugLogWindow() from your code.");
+
+        // Stack Tool is your best friend!
+        Checkbox("Show Stack Tool", &cfg->ShowStackTool);
+        SameLine();
+        MetricsHelpMarker("You can also call ImGui::ShowStackToolWindow() from your code.");
+
+        Checkbox("Show windows begin order", &cfg->ShowWindowsBeginOrder);
+        Checkbox("Show windows rectangles", &cfg->ShowWindowsRects);
+        SameLine();
+        SetNextItemWidth(GetFontSize() * 12);
+        cfg->ShowWindowsRects |= Combo("##show_windows_rect_type", &cfg->ShowWindowsRectsType, wrt_rects_names, WRT_Count, WRT_Count);
+        if (cfg->ShowWindowsRects && g.NavWindow != NULL)
+        {
+            BulletText("'%s':", g.NavWindow->Name);
+            Indent();
+            for (int rect_n = 0; rect_n < WRT_Count; rect_n++)
+            {
+                ImRect r = Funcs::GetWindowRect(g.NavWindow, rect_n);
+                Text("(%6.1f,%6.1f) (%6.1f,%6.1f) Size (%6.1f,%6.1f) %s", r.Min.x, r.Min.y, r.Max.x, r.Max.y, r.GetWidth(), r.GetHeight(), wrt_rects_names[rect_n]);
+            }
+            Unindent();
+        }
+
+        Checkbox("Show tables rectangles", &cfg->ShowTablesRects);
+        SameLine();
+        SetNextItemWidth(GetFontSize() * 12);
+        cfg->ShowTablesRects |= Combo("##show_table_rects_type", &cfg->ShowTablesRectsType, trt_rects_names, TRT_Count, TRT_Count);
+        if (cfg->ShowTablesRects && g.NavWindow != NULL)
+        {
+            for (int table_n = 0; table_n < g.Tables.GetMapSize(); table_n++)
+            {
+                ImGuiTable* table = g.Tables.TryGetMapData(table_n);
+                if (table == NULL || table->LastFrameActive < g.FrameCount - 1 || (table->OuterWindow != g.NavWindow && table->InnerWindow != g.NavWindow))
+                    continue;
+
+                BulletText("Table 0x%08X (%d columns, in '%s')", table->ID, table->ColumnsCount, table->OuterWindow->Name);
+                if (IsItemHovered())
+                    GetForegroundDrawList()->AddRect(table->OuterRect.Min - ImVec2(1, 1), table->OuterRect.Max + ImVec2(1, 1), IM_COL32(255, 255, 0, 255), 0.0f, 0, 2.0f);
+                Indent();
+                char buf[128];
+                for (int rect_n = 0; rect_n < TRT_Count; rect_n++)
+                {
+                    if (rect_n >= TRT_ColumnsRect)
+                    {
+                        if (rect_n != TRT_ColumnsRect && rect_n != TRT_ColumnsClipRect)
+                            continue;
+                        for (int column_n = 0; column_n < table->ColumnsCount; column_n++)
+                        {
+                            ImRect r = Funcs::GetTableRect(table, rect_n, column_n);
+                            ImFormatString(buf, IM_ARRAYSIZE(buf), "(%6.1f,%6.1f) (%6.1f,%6.1f) Size (%6.1f,%6.1f) Col %d %s", r.Min.x, r.Min.y, r.Max.x, r.Max.y, r.GetWidth(), r.GetHeight(), column_n, trt_rects_names[rect_n]);
+                            Selectable(buf);
+                            if (IsItemHovered())
+                                GetForegroundDrawList()->AddRect(r.Min - ImVec2(1, 1), r.Max + ImVec2(1, 1), IM_COL32(255, 255, 0, 255), 0.0f, 0, 2.0f);
+                        }
+                    }
+                    else
+                    {
+                        ImRect r = Funcs::GetTableRect(table, rect_n, -1);
+                        ImFormatString(buf, IM_ARRAYSIZE(buf), "(%6.1f,%6.1f) (%6.1f,%6.1f) Size (%6.1f,%6.1f) %s", r.Min.x, r.Min.y, r.Max.x, r.Max.y, r.GetWidth(), r.GetHeight(), trt_rects_names[rect_n]);
+                        Selectable(buf);
+                        if (IsItemHovered())
+                            GetForegroundDrawList()->AddRect(r.Min - ImVec2(1, 1), r.Max + ImVec2(1, 1), IM_COL32(255, 255, 0, 255), 0.0f, 0, 2.0f);
+                    }
+                }
+                Unindent();
+            }
+        }
+
+        TreePop();
+    }
+
+    // Windows
+    if (TreeNode("Windows", "Windows (%d)", g.Windows.Size))
+    {
+        //SetNextItemOpen(true, ImGuiCond_Once);
+        DebugNodeWindowsList(&g.Windows, "By display order");
+        DebugNodeWindowsList(&g.WindowsFocusOrder, "By focus order (root windows)");
+        if (TreeNode("By submission order (begin stack)"))
+        {
+            // Here we display windows in their submitted order/hierarchy, however note that the Begin stack doesn't constitute a Parent<>Child relationship!
+            ImVector<ImGuiWindow*>& temp_buffer = g.WindowsTempSortBuffer;
+            temp_buffer.resize(0);
+            for (int i = 0; i < g.Windows.Size; i++)
+                if (g.Windows[i]->LastFrameActive + 1 >= g.FrameCount)
+                    temp_buffer.push_back(g.Windows[i]);
+            struct Func { static int IMGUI_CDECL WindowComparerByBeginOrder(const void* lhs, const void* rhs) { return ((int)(*(const ImGuiWindow* const *)lhs)->BeginOrderWithinContext - (*(const ImGuiWindow* const*)rhs)->BeginOrderWithinContext); } };
+            ImQsort(temp_buffer.Data, (size_t)temp_buffer.Size, sizeof(ImGuiWindow*), Func::WindowComparerByBeginOrder);
+            DebugNodeWindowsListByBeginStackParent(temp_buffer.Data, temp_buffer.Size, NULL);
+            TreePop();
+        }
+
+        TreePop();
+    }
+
+    // DrawLists
+    int drawlist_count = 0;
+    for (int viewport_i = 0; viewport_i < g.Viewports.Size; viewport_i++)
+        drawlist_count += g.Viewports[viewport_i]->DrawDataBuilder.GetDrawListCount();
+    if (TreeNode("DrawLists", "DrawLists (%d)", drawlist_count))
+    {
+        Checkbox("Show ImDrawCmd mesh when hovering", &cfg->ShowDrawCmdMesh);
+        Checkbox("Show ImDrawCmd bounding boxes when hovering", &cfg->ShowDrawCmdBoundingBoxes);
+        for (int viewport_i = 0; viewport_i < g.Viewports.Size; viewport_i++)
+        {
+            ImGuiViewportP* viewport = g.Viewports[viewport_i];
+            for (int layer_i = 0; layer_i < IM_ARRAYSIZE(viewport->DrawDataBuilder.Layers); layer_i++)
+                for (int draw_list_i = 0; draw_list_i < viewport->DrawDataBuilder.Layers[layer_i].Size; draw_list_i++)
+                    DebugNodeDrawList(NULL, viewport->DrawDataBuilder.Layers[layer_i][draw_list_i], "DrawList");
+        }
+        TreePop();
+    }
+
+    // Viewports
+    if (TreeNode("Viewports", "Viewports (%d)", g.Viewports.Size))
+    {
+        Indent(GetTreeNodeToLabelSpacing());
+        RenderViewportsThumbnails();
+        Unindent(GetTreeNodeToLabelSpacing());
+        for (int i = 0; i < g.Viewports.Size; i++)
+            DebugNodeViewport(g.Viewports[i]);
+        TreePop();
+    }
+
+    // Details for Popups
+    if (TreeNode("Popups", "Popups (%d)", g.OpenPopupStack.Size))
+    {
+        for (int i = 0; i < g.OpenPopupStack.Size; i++)
+        {
+            ImGuiWindow* window = g.OpenPopupStack[i].Window;
+            BulletText("PopupID: %08x, Window: '%s'%s%s", g.OpenPopupStack[i].PopupId, window ? window->Name : "NULL", window && (window->Flags & ImGuiWindowFlags_ChildWindow) ? " ChildWindow" : "", window && (window->Flags & ImGuiWindowFlags_ChildMenu) ? " ChildMenu" : "");
+        }
+        TreePop();
+    }
+
+    // Details for TabBars
+    if (TreeNode("TabBars", "Tab Bars (%d)", g.TabBars.GetAliveCount()))
+    {
+        for (int n = 0; n < g.TabBars.GetMapSize(); n++)
+            if (ImGuiTabBar* tab_bar = g.TabBars.TryGetMapData(n))
+            {
+                PushID(tab_bar);
+                DebugNodeTabBar(tab_bar, "TabBar");
+                PopID();
+            }
+        TreePop();
+    }
+
+    // Details for Tables
+    if (TreeNode("Tables", "Tables (%d)", g.Tables.GetAliveCount()))
+    {
+        for (int n = 0; n < g.Tables.GetMapSize(); n++)
+            if (ImGuiTable* table = g.Tables.TryGetMapData(n))
+                DebugNodeTable(table);
+        TreePop();
+    }
+
+    // Details for Fonts
+    ImFontAtlas* atlas = g.IO.Fonts;
+    if (TreeNode("Fonts", "Fonts (%d)", atlas->Fonts.Size))
+    {
+        ShowFontAtlas(atlas);
+        TreePop();
+    }
+
+    // Details for InputText
+    if (TreeNode("InputText"))
+    {
+        DebugNodeInputTextState(&g.InputTextState);
+        TreePop();
+    }
+
+    // Details for Docking
+#ifdef IMGUI_HAS_DOCK
+    if (TreeNode("Docking"))
+    {
+        TreePop();
+    }
+#endif // #ifdef IMGUI_HAS_DOCK
+
+    // Settings
+    if (TreeNode("Settings"))
+    {
+        if (SmallButton("Clear"))
+            ClearIniSettings();
+        SameLine();
+        if (SmallButton("Save to memory"))
+            SaveIniSettingsToMemory();
+        SameLine();
+        if (SmallButton("Save to disk"))
+            SaveIniSettingsToDisk(g.IO.IniFilename);
+        SameLine();
+        if (g.IO.IniFilename)
+            Text("\"%s\"", g.IO.IniFilename);
+        else
+            TextUnformatted("<NULL>");
+        Text("SettingsDirtyTimer %.2f", g.SettingsDirtyTimer);
+        if (TreeNode("SettingsHandlers", "Settings handlers: (%d)", g.SettingsHandlers.Size))
+        {
+            for (int n = 0; n < g.SettingsHandlers.Size; n++)
+                BulletText("%s", g.SettingsHandlers[n].TypeName);
+            TreePop();
+        }
+        if (TreeNode("SettingsWindows", "Settings packed data: Windows: %d bytes", g.SettingsWindows.size()))
+        {
+            for (ImGuiWindowSettings* settings = g.SettingsWindows.begin(); settings != NULL; settings = g.SettingsWindows.next_chunk(settings))
+                DebugNodeWindowSettings(settings);
+            TreePop();
+        }
+
+        if (TreeNode("SettingsTables", "Settings packed data: Tables: %d bytes", g.SettingsTables.size()))
+        {
+            for (ImGuiTableSettings* settings = g.SettingsTables.begin(); settings != NULL; settings = g.SettingsTables.next_chunk(settings))
+                DebugNodeTableSettings(settings);
+            TreePop();
+        }
+
+#ifdef IMGUI_HAS_DOCK
+#endif // #ifdef IMGUI_HAS_DOCK
+
+        if (TreeNode("SettingsIniData", "Settings unpacked data (.ini): %d bytes", g.SettingsIniData.size()))
+        {
+            InputTextMultiline("##Ini", (char*)(void*)g.SettingsIniData.c_str(), g.SettingsIniData.Buf.Size, ImVec2(-FLT_MIN, GetTextLineHeight() * 20), ImGuiInputTextFlags_ReadOnly);
+            TreePop();
+        }
+        TreePop();
+    }
+
+    // Misc Details
+    if (TreeNode("Internal state"))
+    {
+        Text("WINDOWING");
+        Indent();
+        Text("HoveredWindow: '%s'", g.HoveredWindow ? g.HoveredWindow->Name : "NULL");
+        Text("HoveredWindow->Root: '%s'", g.HoveredWindow ? g.HoveredWindow->RootWindow->Name : "NULL");
+        Text("HoveredWindowUnderMovingWindow: '%s'", g.HoveredWindowUnderMovingWindow ? g.HoveredWindowUnderMovingWindow->Name : "NULL");
+        Text("MovingWindow: '%s'", g.MovingWindow ? g.MovingWindow->Name : "NULL");
+        Unindent();
+
+        Text("ITEMS");
+        Indent();
+        Text("ActiveId: 0x%08X/0x%08X (%.2f sec), AllowOverlap: %d, Source: %s", g.ActiveId, g.ActiveIdPreviousFrame, g.ActiveIdTimer, g.ActiveIdAllowOverlap, GetInputSourceName(g.ActiveIdSource));
+        Text("ActiveIdWindow: '%s'", g.ActiveIdWindow ? g.ActiveIdWindow->Name : "NULL");
+
+        int active_id_using_key_input_count = 0;
+        for (int n = ImGuiKey_NamedKey_BEGIN; n < ImGuiKey_NamedKey_END; n++)
+            active_id_using_key_input_count += g.ActiveIdUsingKeyInputMask[n] ? 1 : 0;
+        Text("ActiveIdUsing: Wheel: %d, NavDirMask: %X, NavInputMask: %X, KeyInputMask: %d key(s)", g.ActiveIdUsingMouseWheel, g.ActiveIdUsingNavDirMask, g.ActiveIdUsingNavInputMask, active_id_using_key_input_count);
+        Text("HoveredId: 0x%08X (%.2f sec), AllowOverlap: %d", g.HoveredIdPreviousFrame, g.HoveredIdTimer, g.HoveredIdAllowOverlap); // Not displaying g.HoveredId as it is update mid-frame
+        Text("DragDrop: %d, SourceId = 0x%08X, Payload \"%s\" (%d bytes)", g.DragDropActive, g.DragDropPayload.SourceId, g.DragDropPayload.DataType, g.DragDropPayload.DataSize);
+        Unindent();
+
+        Text("NAV,FOCUS");
+        Indent();
+        Text("NavWindow: '%s'", g.NavWindow ? g.NavWindow->Name : "NULL");
+        Text("NavId: 0x%08X, NavLayer: %d", g.NavId, g.NavLayer);
+        Text("NavInputSource: %s", GetInputSourceName(g.NavInputSource));
+        Text("NavActive: %d, NavVisible: %d", g.IO.NavActive, g.IO.NavVisible);
+        Text("NavActivateId/DownId/PressedId/InputId: %08X/%08X/%08X/%08X", g.NavActivateId, g.NavActivateDownId, g.NavActivatePressedId, g.NavActivateInputId);
+        Text("NavActivateFlags: %04X", g.NavActivateFlags);
+        Text("NavDisableHighlight: %d, NavDisableMouseHover: %d", g.NavDisableHighlight, g.NavDisableMouseHover);
+        Text("NavFocusScopeId = 0x%08X", g.NavFocusScopeId);
+        Text("NavWindowingTarget: '%s'", g.NavWindowingTarget ? g.NavWindowingTarget->Name : "NULL");
+        Unindent();
+
+        TreePop();
+    }
+
+    // Overlay: Display windows Rectangles and Begin Order
+    if (cfg->ShowWindowsRects || cfg->ShowWindowsBeginOrder)
+    {
+        for (int n = 0; n < g.Windows.Size; n++)
+        {
+            ImGuiWindow* window = g.Windows[n];
+            if (!window->WasActive)
+                continue;
+            ImDrawList* draw_list = GetForegroundDrawList(window);
+            if (cfg->ShowWindowsRects)
+            {
+                ImRect r = Funcs::GetWindowRect(window, cfg->ShowWindowsRectsType);
+                draw_list->AddRect(r.Min, r.Max, IM_COL32(255, 0, 128, 255));
+            }
+            if (cfg->ShowWindowsBeginOrder && !(window->Flags & ImGuiWindowFlags_ChildWindow))
+            {
+                char buf[32];
+                ImFormatString(buf, IM_ARRAYSIZE(buf), "%d", window->BeginOrderWithinContext);
+                float font_size = GetFontSize();
+                draw_list->AddRectFilled(window->Pos, window->Pos + ImVec2(font_size, font_size), IM_COL32(200, 100, 100, 255));
+                draw_list->AddText(window->Pos, IM_COL32(255, 255, 255, 255), buf);
+            }
+        }
+    }
+
+    // Overlay: Display Tables Rectangles
+    if (cfg->ShowTablesRects)
+    {
+        for (int table_n = 0; table_n < g.Tables.GetMapSize(); table_n++)
+        {
+            ImGuiTable* table = g.Tables.TryGetMapData(table_n);
+            if (table == NULL || table->LastFrameActive < g.FrameCount - 1)
+                continue;
+            ImDrawList* draw_list = GetForegroundDrawList(table->OuterWindow);
+            if (cfg->ShowTablesRectsType >= TRT_ColumnsRect)
+            {
+                for (int column_n = 0; column_n < table->ColumnsCount; column_n++)
+                {
+                    ImRect r = Funcs::GetTableRect(table, cfg->ShowTablesRectsType, column_n);
+                    ImU32 col = (table->HoveredColumnBody == column_n) ? IM_COL32(255, 255, 128, 255) : IM_COL32(255, 0, 128, 255);
+                    float thickness = (table->HoveredColumnBody == column_n) ? 3.0f : 1.0f;
+                    draw_list->AddRect(r.Min, r.Max, col, 0.0f, 0, thickness);
+                }
+            }
+            else
+            {
+                ImRect r = Funcs::GetTableRect(table, cfg->ShowTablesRectsType, -1);
+                draw_list->AddRect(r.Min, r.Max, IM_COL32(255, 0, 128, 255));
+            }
+        }
+    }
+
+#ifdef IMGUI_HAS_DOCK
+    // Overlay: Display Docking info
+    if (show_docking_nodes && g.IO.KeyCtrl)
+    {
+    }
+#endif // #ifdef IMGUI_HAS_DOCK
+
+    End();
+}
+
+// [DEBUG] Display contents of Columns
+void ImGui::DebugNodeColumns(ImGuiOldColumns* columns)
+{
+    if (!TreeNode((void*)(uintptr_t)columns->ID, "Columns Id: 0x%08X, Count: %d, Flags: 0x%04X", columns->ID, columns->Count, columns->Flags))
+        return;
+    BulletText("Width: %.1f (MinX: %.1f, MaxX: %.1f)", columns->OffMaxX - columns->OffMinX, columns->OffMinX, columns->OffMaxX);
+    for (int column_n = 0; column_n < columns->Columns.Size; column_n++)
+        BulletText("Column %02d: OffsetNorm %.3f (= %.1f px)", column_n, columns->Columns[column_n].OffsetNorm, GetColumnOffsetFromNorm(columns, columns->Columns[column_n].OffsetNorm));
+    TreePop();
+}
+
+// [DEBUG] Display contents of ImDrawList
+void ImGui::DebugNodeDrawList(ImGuiWindow* window, const ImDrawList* draw_list, const char* label)
+{
+    ImGuiContext& g = *GImGui;
+    ImGuiMetricsConfig* cfg = &g.DebugMetricsConfig;
+    int cmd_count = draw_list->CmdBuffer.Size;
+    if (cmd_count > 0 && draw_list->CmdBuffer.back().ElemCount == 0 && draw_list->CmdBuffer.back().UserCallback == NULL)
+        cmd_count--;
+    bool node_open = TreeNode(draw_list, "%s: '%s' %d vtx, %d indices, %d cmds", label, draw_list->_OwnerName ? draw_list->_OwnerName : "", draw_list->VtxBuffer.Size, draw_list->IdxBuffer.Size, cmd_count);
+    if (draw_list == GetWindowDrawList())
+    {
+        SameLine();
+        TextColored(ImVec4(1.0f, 0.4f, 0.4f, 1.0f), "CURRENTLY APPENDING"); // Can't display stats for active draw list! (we don't have the data double-buffered)
+        if (node_open)
+            TreePop();
+        return;
+    }
+
+    ImDrawList* fg_draw_list = GetForegroundDrawList(window); // Render additional visuals into the top-most draw list
+    if (window && IsItemHovered() && fg_draw_list)
+        fg_draw_list->AddRect(window->Pos, window->Pos + window->Size, IM_COL32(255, 255, 0, 255));
+    if (!node_open)
+        return;
+
+    if (window && !window->WasActive)
+        TextDisabled("Warning: owning Window is inactive. This DrawList is not being rendered!");
+
+    for (const ImDrawCmd* pcmd = draw_list->CmdBuffer.Data; pcmd < draw_list->CmdBuffer.Data + cmd_count; pcmd++)
+    {
+        if (pcmd->UserCallback)
+        {
+            BulletText("Callback %p, user_data %p", pcmd->UserCallback, pcmd->UserCallbackData);
+            continue;
+        }
+
+        char buf[300];
+        ImFormatString(buf, IM_ARRAYSIZE(buf), "DrawCmd:%5d tris, Tex 0x%p, ClipRect (%4.0f,%4.0f)-(%4.0f,%4.0f)",
+            pcmd->ElemCount / 3, (void*)(intptr_t)pcmd->TextureId,
+            pcmd->ClipRect.x, pcmd->ClipRect.y, pcmd->ClipRect.z, pcmd->ClipRect.w);
+        bool pcmd_node_open = TreeNode((void*)(pcmd - draw_list->CmdBuffer.begin()), "%s", buf);
+        if (IsItemHovered() && (cfg->ShowDrawCmdMesh || cfg->ShowDrawCmdBoundingBoxes) && fg_draw_list)
+            DebugNodeDrawCmdShowMeshAndBoundingBox(fg_draw_list, draw_list, pcmd, cfg->ShowDrawCmdMesh, cfg->ShowDrawCmdBoundingBoxes);
+        if (!pcmd_node_open)
+            continue;
+
+        // Calculate approximate coverage area (touched pixel count)
+        // This will be in pixels squared as long there's no post-scaling happening to the renderer output.
+        const ImDrawIdx* idx_buffer = (draw_list->IdxBuffer.Size > 0) ? draw_list->IdxBuffer.Data : NULL;
+        const ImDrawVert* vtx_buffer = draw_list->VtxBuffer.Data + pcmd->VtxOffset;
+        float total_area = 0.0f;
+        for (unsigned int idx_n = pcmd->IdxOffset; idx_n < pcmd->IdxOffset + pcmd->ElemCount; )
+        {
+            ImVec2 triangle[3];
+            for (int n = 0; n < 3; n++, idx_n++)
+                triangle[n] = vtx_buffer[idx_buffer ? idx_buffer[idx_n] : idx_n].pos;
+            total_area += ImTriangleArea(triangle[0], triangle[1], triangle[2]);
+        }
+
+        // Display vertex information summary. Hover to get all triangles drawn in wire-frame
+        ImFormatString(buf, IM_ARRAYSIZE(buf), "Mesh: ElemCount: %d, VtxOffset: +%d, IdxOffset: +%d, Area: ~%0.f px", pcmd->ElemCount, pcmd->VtxOffset, pcmd->IdxOffset, total_area);
+        Selectable(buf);
+        if (IsItemHovered() && fg_draw_list)
+            DebugNodeDrawCmdShowMeshAndBoundingBox(fg_draw_list, draw_list, pcmd, true, false);
+
+        // Display individual triangles/vertices. Hover on to get the corresponding triangle highlighted.
+        ImGuiListClipper clipper;
+        clipper.Begin(pcmd->ElemCount / 3); // Manually coarse clip our print out of individual vertices to save CPU, only items that may be visible.
+        while (clipper.Step())
+            for (int prim = clipper.DisplayStart, idx_i = pcmd->IdxOffset + clipper.DisplayStart * 3; prim < clipper.DisplayEnd; prim++)
+            {
+                char* buf_p = buf, * buf_end = buf + IM_ARRAYSIZE(buf);
+                ImVec2 triangle[3];
+                for (int n = 0; n < 3; n++, idx_i++)
+                {
+                    const ImDrawVert& v = vtx_buffer[idx_buffer ? idx_buffer[idx_i] : idx_i];
+                    triangle[n] = v.pos;
+                    buf_p += ImFormatString(buf_p, buf_end - buf_p, "%s %04d: pos (%8.2f,%8.2f), uv (%.6f,%.6f), col %08X\n",
+                        (n == 0) ? "Vert:" : "     ", idx_i, v.pos.x, v.pos.y, v.uv.x, v.uv.y, v.col);
+                }
+
+                Selectable(buf, false);
+                if (fg_draw_list && IsItemHovered())
+                {
+                    ImDrawListFlags backup_flags = fg_draw_list->Flags;
+                    fg_draw_list->Flags &= ~ImDrawListFlags_AntiAliasedLines; // Disable AA on triangle outlines is more readable for very large and thin triangles.
+                    fg_draw_list->AddPolyline(triangle, 3, IM_COL32(255, 255, 0, 255), ImDrawFlags_Closed, 1.0f);
+                    fg_draw_list->Flags = backup_flags;
+                }
+            }
+        TreePop();
+    }
+    TreePop();
+}
+
+// [DEBUG] Display mesh/aabb of a ImDrawCmd
+void ImGui::DebugNodeDrawCmdShowMeshAndBoundingBox(ImDrawList* out_draw_list, const ImDrawList* draw_list, const ImDrawCmd* draw_cmd, bool show_mesh, bool show_aabb)
+{
+    IM_ASSERT(show_mesh || show_aabb);
+
+    // Draw wire-frame version of all triangles
+    ImRect clip_rect = draw_cmd->ClipRect;
+    ImRect vtxs_rect(FLT_MAX, FLT_MAX, -FLT_MAX, -FLT_MAX);
+    ImDrawListFlags backup_flags = out_draw_list->Flags;
+    out_draw_list->Flags &= ~ImDrawListFlags_AntiAliasedLines; // Disable AA on triangle outlines is more readable for very large and thin triangles.
+    for (unsigned int idx_n = draw_cmd->IdxOffset, idx_end = draw_cmd->IdxOffset + draw_cmd->ElemCount; idx_n < idx_end; )
+    {
+        ImDrawIdx* idx_buffer = (draw_list->IdxBuffer.Size > 0) ? draw_list->IdxBuffer.Data : NULL; // We don't hold on those pointers past iterations as ->AddPolyline() may invalidate them if out_draw_list==draw_list
+        ImDrawVert* vtx_buffer = draw_list->VtxBuffer.Data + draw_cmd->VtxOffset;
+
+        ImVec2 triangle[3];
+        for (int n = 0; n < 3; n++, idx_n++)
+            vtxs_rect.Add((triangle[n] = vtx_buffer[idx_buffer ? idx_buffer[idx_n] : idx_n].pos));
+        if (show_mesh)
+            out_draw_list->AddPolyline(triangle, 3, IM_COL32(255, 255, 0, 255), ImDrawFlags_Closed, 1.0f); // In yellow: mesh triangles
+    }
+    // Draw bounding boxes
+    if (show_aabb)
+    {
+        out_draw_list->AddRect(ImFloor(clip_rect.Min), ImFloor(clip_rect.Max), IM_COL32(255, 0, 255, 255)); // In pink: clipping rectangle submitted to GPU
+        out_draw_list->AddRect(ImFloor(vtxs_rect.Min), ImFloor(vtxs_rect.Max), IM_COL32(0, 255, 255, 255)); // In cyan: bounding box of triangles
+    }
+    out_draw_list->Flags = backup_flags;
+}
+
+// [DEBUG] Display details for a single font, called by ShowStyleEditor().
+void ImGui::DebugNodeFont(ImFont* font)
+{
+    bool opened = TreeNode(font, "Font: \"%s\"\n%.2f px, %d glyphs, %d file(s)",
+        font->ConfigData ? font->ConfigData[0].Name : "", font->FontSize, font->Glyphs.Size, font->ConfigDataCount);
+    SameLine();
+    if (SmallButton("Set as default"))
+        GetIO().FontDefault = font;
+    if (!opened)
+        return;
+
+    // Display preview text
+    PushFont(font);
+    Text("The quick brown fox jumps over the lazy dog");
+    PopFont();
+
+    // Display details
+    SetNextItemWidth(GetFontSize() * 8);
+    DragFloat("Font scale", &font->Scale, 0.005f, 0.3f, 2.0f, "%.1f");
+    SameLine(); MetricsHelpMarker(
+        "Note than the default embedded font is NOT meant to be scaled.\n\n"
+        "Font are currently rendered into bitmaps at a given size at the time of building the atlas. "
+        "You may oversample them to get some flexibility with scaling. "
+        "You can also render at multiple sizes and select which one to use at runtime.\n\n"
+        "(Glimmer of hope: the atlas system will be rewritten in the future to make scaling more flexible.)");
+    Text("Ascent: %f, Descent: %f, Height: %f", font->Ascent, font->Descent, font->Ascent - font->Descent);
+    char c_str[5];
+    Text("Fallback character: '%s' (U+%04X)", ImTextCharToUtf8(c_str, font->FallbackChar), font->FallbackChar);
+    Text("Ellipsis character: '%s' (U+%04X)", ImTextCharToUtf8(c_str, font->EllipsisChar), font->EllipsisChar);
+    const int surface_sqrt = (int)ImSqrt((float)font->MetricsTotalSurface);
+    Text("Texture Area: about %d px ~%dx%d px", font->MetricsTotalSurface, surface_sqrt, surface_sqrt);
+    for (int config_i = 0; config_i < font->ConfigDataCount; config_i++)
+        if (font->ConfigData)
+            if (const ImFontConfig* cfg = &font->ConfigData[config_i])
+                BulletText("Input %d: \'%s\', Oversample: (%d,%d), PixelSnapH: %d, Offset: (%.1f,%.1f)",
+                    config_i, cfg->Name, cfg->OversampleH, cfg->OversampleV, cfg->PixelSnapH, cfg->GlyphOffset.x, cfg->GlyphOffset.y);
+
+    // Display all glyphs of the fonts in separate pages of 256 characters
+    if (TreeNode("Glyphs", "Glyphs (%d)", font->Glyphs.Size))
+    {
+        ImDrawList* draw_list = GetWindowDrawList();
+        const ImU32 glyph_col = GetColorU32(ImGuiCol_Text);
+        const float cell_size = font->FontSize * 1;
+        const float cell_spacing = GetStyle().ItemSpacing.y;
+        for (unsigned int base = 0; base <= IM_UNICODE_CODEPOINT_MAX; base += 256)
+        {
+            // Skip ahead if a large bunch of glyphs are not present in the font (test in chunks of 4k)
+            // This is only a small optimization to reduce the number of iterations when IM_UNICODE_MAX_CODEPOINT
+            // is large // (if ImWchar==ImWchar32 we will do at least about 272 queries here)
+            if (!(base & 4095) && font->IsGlyphRangeUnused(base, base + 4095))
+            {
+                base += 4096 - 256;
+                continue;
+            }
+
+            int count = 0;
+            for (unsigned int n = 0; n < 256; n++)
+                if (font->FindGlyphNoFallback((ImWchar)(base + n)))
+                    count++;
+            if (count <= 0)
+                continue;
+            if (!TreeNode((void*)(intptr_t)base, "U+%04X..U+%04X (%d %s)", base, base + 255, count, count > 1 ? "glyphs" : "glyph"))
+                continue;
+
+            // Draw a 16x16 grid of glyphs
+            ImVec2 base_pos = GetCursorScreenPos();
+            for (unsigned int n = 0; n < 256; n++)
+            {
+                // We use ImFont::RenderChar as a shortcut because we don't have UTF-8 conversion functions
+                // available here and thus cannot easily generate a zero-terminated UTF-8 encoded string.
+                ImVec2 cell_p1(base_pos.x + (n % 16) * (cell_size + cell_spacing), base_pos.y + (n / 16) * (cell_size + cell_spacing));
+                ImVec2 cell_p2(cell_p1.x + cell_size, cell_p1.y + cell_size);
+                const ImFontGlyph* glyph = font->FindGlyphNoFallback((ImWchar)(base + n));
+                draw_list->AddRect(cell_p1, cell_p2, glyph ? IM_COL32(255, 255, 255, 100) : IM_COL32(255, 255, 255, 50));
+                if (!glyph)
+                    continue;
+                font->RenderChar(draw_list, cell_size, cell_p1, glyph_col, (ImWchar)(base + n));
+                if (IsMouseHoveringRect(cell_p1, cell_p2))
+                {
+                    BeginTooltip();
+                    DebugNodeFontGlyph(font, glyph);
+                    EndTooltip();
+                }
+            }
+            Dummy(ImVec2((cell_size + cell_spacing) * 16, (cell_size + cell_spacing) * 16));
+            TreePop();
+        }
+        TreePop();
+    }
+    TreePop();
+}
+
+void ImGui::DebugNodeFontGlyph(ImFont*, const ImFontGlyph* glyph)
+{
+    Text("Codepoint: U+%04X", glyph->Codepoint);
+    Separator();
+    Text("Visible: %d", glyph->Visible);
+    Text("AdvanceX: %.1f", glyph->AdvanceX);
+    Text("Pos: (%.2f,%.2f)->(%.2f,%.2f)", glyph->X0, glyph->Y0, glyph->X1, glyph->Y1);
+    Text("UV: (%.3f,%.3f)->(%.3f,%.3f)", glyph->U0, glyph->V0, glyph->U1, glyph->V1);
+}
+
+// [DEBUG] Display contents of ImGuiStorage
+void ImGui::DebugNodeStorage(ImGuiStorage* storage, const char* label)
+{
+    if (!TreeNode(label, "%s: %d entries, %d bytes", label, storage->Data.Size, storage->Data.size_in_bytes()))
+        return;
+    for (int n = 0; n < storage->Data.Size; n++)
+    {
+        const ImGuiStorage::ImGuiStoragePair& p = storage->Data[n];
+        BulletText("Key 0x%08X Value { i: %d }", p.key, p.val_i); // Important: we currently don't store a type, real value may not be integer.
+    }
+    TreePop();
+}
+
+// [DEBUG] Display contents of ImGuiTabBar
+void ImGui::DebugNodeTabBar(ImGuiTabBar* tab_bar, const char* label)
+{
+    // Standalone tab bars (not associated to docking/windows functionality) currently hold no discernible strings.
+    char buf[256];
+    char* p = buf;
+    const char* buf_end = buf + IM_ARRAYSIZE(buf);
+    const bool is_active = (tab_bar->PrevFrameVisible >= GetFrameCount() - 2);
+    p += ImFormatString(p, buf_end - p, "%s 0x%08X (%d tabs)%s", label, tab_bar->ID, tab_bar->Tabs.Size, is_active ? "" : " *Inactive*");
+    p += ImFormatString(p, buf_end - p, "  { ");
+    for (int tab_n = 0; tab_n < ImMin(tab_bar->Tabs.Size, 3); tab_n++)
+    {
+        ImGuiTabItem* tab = &tab_bar->Tabs[tab_n];
+        p += ImFormatString(p, buf_end - p, "%s'%s'",
+            tab_n > 0 ? ", " : "", (tab->NameOffset != -1) ? tab_bar->GetTabName(tab) : "???");
+    }
+    p += ImFormatString(p, buf_end - p, (tab_bar->Tabs.Size > 3) ? " ... }" : " } ");
+    if (!is_active) { PushStyleColor(ImGuiCol_Text, GetStyleColorVec4(ImGuiCol_TextDisabled)); }
+    bool open = TreeNode(label, "%s", buf);
+    if (!is_active) { PopStyleColor(); }
+    if (is_active && IsItemHovered())
+    {
+        ImDrawList* draw_list = GetForegroundDrawList();
+        draw_list->AddRect(tab_bar->BarRect.Min, tab_bar->BarRect.Max, IM_COL32(255, 255, 0, 255));
+        draw_list->AddLine(ImVec2(tab_bar->ScrollingRectMinX, tab_bar->BarRect.Min.y), ImVec2(tab_bar->ScrollingRectMinX, tab_bar->BarRect.Max.y), IM_COL32(0, 255, 0, 255));
+        draw_list->AddLine(ImVec2(tab_bar->ScrollingRectMaxX, tab_bar->BarRect.Min.y), ImVec2(tab_bar->ScrollingRectMaxX, tab_bar->BarRect.Max.y), IM_COL32(0, 255, 0, 255));
+    }
+    if (open)
+    {
+        for (int tab_n = 0; tab_n < tab_bar->Tabs.Size; tab_n++)
+        {
+            const ImGuiTabItem* tab = &tab_bar->Tabs[tab_n];
+            PushID(tab);
+            if (SmallButton("<")) { TabBarQueueReorder(tab_bar, tab, -1); } SameLine(0, 2);
+            if (SmallButton(">")) { TabBarQueueReorder(tab_bar, tab, +1); } SameLine();
+            Text("%02d%c Tab 0x%08X '%s' Offset: %.1f, Width: %.1f/%.1f",
+                tab_n, (tab->ID == tab_bar->SelectedTabId) ? '*' : ' ', tab->ID, (tab->NameOffset != -1) ? tab_bar->GetTabName(tab) : "???", tab->Offset, tab->Width, tab->ContentWidth);
+            PopID();
+        }
+        TreePop();
+    }
+}
+
+void ImGui::DebugNodeViewport(ImGuiViewportP* viewport)
+{
+    SetNextItemOpen(true, ImGuiCond_Once);
+    if (TreeNode("viewport0", "Viewport #%d", 0))
+    {
+        ImGuiWindowFlags flags = viewport->Flags;
+        BulletText("Main Pos: (%.0f,%.0f), Size: (%.0f,%.0f)\nWorkArea Offset Left: %.0f Top: %.0f, Right: %.0f, Bottom: %.0f",
+            viewport->Pos.x, viewport->Pos.y, viewport->Size.x, viewport->Size.y,
+            viewport->WorkOffsetMin.x, viewport->WorkOffsetMin.y, viewport->WorkOffsetMax.x, viewport->WorkOffsetMax.y);
+        BulletText("Flags: 0x%04X =%s%s%s", viewport->Flags,
+            (flags & ImGuiViewportFlags_IsPlatformWindow)  ? " IsPlatformWindow"  : "",
+            (flags & ImGuiViewportFlags_IsPlatformMonitor) ? " IsPlatformMonitor" : "",
+            (flags & ImGuiViewportFlags_OwnedByApp)        ? " OwnedByApp"        : "");
+        for (int layer_i = 0; layer_i < IM_ARRAYSIZE(viewport->DrawDataBuilder.Layers); layer_i++)
+            for (int draw_list_i = 0; draw_list_i < viewport->DrawDataBuilder.Layers[layer_i].Size; draw_list_i++)
+                DebugNodeDrawList(NULL, viewport->DrawDataBuilder.Layers[layer_i][draw_list_i], "DrawList");
+        TreePop();
+    }
+}
+
+void ImGui::DebugNodeWindow(ImGuiWindow* window, const char* label)
+{
+    if (window == NULL)
+    {
+        BulletText("%s: NULL", label);
+        return;
+    }
+
+    ImGuiContext& g = *GImGui;
+    const bool is_active = window->WasActive;
+    ImGuiTreeNodeFlags tree_node_flags = (window == g.NavWindow) ? ImGuiTreeNodeFlags_Selected : ImGuiTreeNodeFlags_None;
+    if (!is_active) { PushStyleColor(ImGuiCol_Text, GetStyleColorVec4(ImGuiCol_TextDisabled)); }
+    const bool open = TreeNodeEx(label, tree_node_flags, "%s '%s'%s", label, window->Name, is_active ? "" : " *Inactive*");
+    if (!is_active) { PopStyleColor(); }
+    if (IsItemHovered() && is_active)
+        GetForegroundDrawList(window)->AddRect(window->Pos, window->Pos + window->Size, IM_COL32(255, 255, 0, 255));
+    if (!open)
+        return;
+
+    if (window->MemoryCompacted)
+        TextDisabled("Note: some memory buffers have been compacted/freed.");
+
+    ImGuiWindowFlags flags = window->Flags;
+    DebugNodeDrawList(window, window->DrawList, "DrawList");
+    BulletText("Pos: (%.1f,%.1f), Size: (%.1f,%.1f), ContentSize (%.1f,%.1f) Ideal (%.1f,%.1f)", window->Pos.x, window->Pos.y, window->Size.x, window->Size.y, window->ContentSize.x, window->ContentSize.y, window->ContentSizeIdeal.x, window->ContentSizeIdeal.y);
+    BulletText("Flags: 0x%08X (%s%s%s%s%s%s%s%s%s..)", flags,
+        (flags & ImGuiWindowFlags_ChildWindow)  ? "Child " : "",      (flags & ImGuiWindowFlags_Tooltip)     ? "Tooltip "   : "",  (flags & ImGuiWindowFlags_Popup) ? "Popup " : "",
+        (flags & ImGuiWindowFlags_Modal)        ? "Modal " : "",      (flags & ImGuiWindowFlags_ChildMenu)   ? "ChildMenu " : "",  (flags & ImGuiWindowFlags_NoSavedSettings) ? "NoSavedSettings " : "",
+        (flags & ImGuiWindowFlags_NoMouseInputs)? "NoMouseInputs":"", (flags & ImGuiWindowFlags_NoNavInputs) ? "NoNavInputs" : "", (flags & ImGuiWindowFlags_AlwaysAutoResize) ? "AlwaysAutoResize" : "");
+    BulletText("Scroll: (%.2f/%.2f,%.2f/%.2f) Scrollbar:%s%s", window->Scroll.x, window->ScrollMax.x, window->Scroll.y, window->ScrollMax.y, window->ScrollbarX ? "X" : "", window->ScrollbarY ? "Y" : "");
+    BulletText("Active: %d/%d, WriteAccessed: %d, BeginOrderWithinContext: %d", window->Active, window->WasActive, window->WriteAccessed, (window->Active || window->WasActive) ? window->BeginOrderWithinContext : -1);
+    BulletText("Appearing: %d, Hidden: %d (CanSkip %d Cannot %d), SkipItems: %d", window->Appearing, window->Hidden, window->HiddenFramesCanSkipItems, window->HiddenFramesCannotSkipItems, window->SkipItems);
+    for (int layer = 0; layer < ImGuiNavLayer_COUNT; layer++)
+    {
+        ImRect r = window->NavRectRel[layer];
+        if (r.Min.x >= r.Max.y && r.Min.y >= r.Max.y)
+        {
+            BulletText("NavLastIds[%d]: 0x%08X", layer, window->NavLastIds[layer]);
+            continue;
+        }
+        BulletText("NavLastIds[%d]: 0x%08X at +(%.1f,%.1f)(%.1f,%.1f)", layer, window->NavLastIds[layer], r.Min.x, r.Min.y, r.Max.x, r.Max.y);
+        if (IsItemHovered())
+            GetForegroundDrawList(window)->AddRect(r.Min + window->Pos, r.Max + window->Pos, IM_COL32(255, 255, 0, 255));
+    }
+    BulletText("NavLayersActiveMask: %X, NavLastChildNavWindow: %s", window->DC.NavLayersActiveMask, window->NavLastChildNavWindow ? window->NavLastChildNavWindow->Name : "NULL");
+    if (window->RootWindow != window)       { DebugNodeWindow(window->RootWindow, "RootWindow"); }
+    if (window->ParentWindow != NULL)       { DebugNodeWindow(window->ParentWindow, "ParentWindow"); }
+    if (window->DC.ChildWindows.Size > 0)   { DebugNodeWindowsList(&window->DC.ChildWindows, "ChildWindows"); }
+    if (window->ColumnsStorage.Size > 0 && TreeNode("Columns", "Columns sets (%d)", window->ColumnsStorage.Size))
+    {
+        for (int n = 0; n < window->ColumnsStorage.Size; n++)
+            DebugNodeColumns(&window->ColumnsStorage[n]);
+        TreePop();
+    }
+    DebugNodeStorage(&window->StateStorage, "Storage");
+    TreePop();
+}
+
+void ImGui::DebugNodeWindowSettings(ImGuiWindowSettings* settings)
+{
+    Text("0x%08X \"%s\" Pos (%d,%d) Size (%d,%d) Collapsed=%d",
+        settings->ID, settings->GetName(), settings->Pos.x, settings->Pos.y, settings->Size.x, settings->Size.y, settings->Collapsed);
+}
+
+void ImGui::DebugNodeWindowsList(ImVector<ImGuiWindow*>* windows, const char* label)
+{
+    if (!TreeNode(label, "%s (%d)", label, windows->Size))
+        return;
+    for (int i = windows->Size - 1; i >= 0; i--) // Iterate front to back
+    {
+        PushID((*windows)[i]);
+        DebugNodeWindow((*windows)[i], "Window");
+        PopID();
+    }
+    TreePop();
+}
+
+// FIXME-OPT: This is technically suboptimal, but it is simpler this way.
+void ImGui::DebugNodeWindowsListByBeginStackParent(ImGuiWindow** windows, int windows_size, ImGuiWindow* parent_in_begin_stack)
+{
+    for (int i = 0; i < windows_size; i++)
+    {
+        ImGuiWindow* window = windows[i];
+        if (window->ParentWindowInBeginStack != parent_in_begin_stack)
+            continue;
+        char buf[20];
+        ImFormatString(buf, IM_ARRAYSIZE(buf), "[%04d] Window", window->BeginOrderWithinContext);
+        //BulletText("[%04d] Window '%s'", window->BeginOrderWithinContext, window->Name);
+        DebugNodeWindow(window, buf);
+        Indent();
+        DebugNodeWindowsListByBeginStackParent(windows + i + 1, windows_size - i - 1, window);
+        Unindent();
+    }
+}
+
+//-----------------------------------------------------------------------------
+// [SECTION] DEBUG LOG
+//-----------------------------------------------------------------------------
+
+void ImGui::DebugLog(const char* fmt, ...)
+{
+    va_list args;
+    va_start(args, fmt);
+    DebugLogV(fmt, args);
+    va_end(args);
+}
+
+void ImGui::DebugLogV(const char* fmt, va_list args)
+{
+    ImGuiContext& g = *GImGui;
+    const int old_size = g.DebugLogBuf.size();
+    g.DebugLogBuf.appendf("[%05d] ", g.FrameCount);
+    g.DebugLogBuf.appendfv(fmt, args);
+    if (g.DebugLogFlags & ImGuiDebugLogFlags_OutputToTTY)
+        IMGUI_DEBUG_PRINTF("%s", g.DebugLogBuf.begin() + old_size);
+}
+
+void ImGui::ShowDebugLogWindow(bool* p_open)
+{
+    ImGuiContext& g = *GImGui;
+    if (!(g.NextWindowData.Flags & ImGuiNextWindowDataFlags_HasSize))
+        SetNextWindowSize(ImVec2(0.0f, GetFontSize() * 12.0f), ImGuiCond_FirstUseEver);
+    if (!Begin("Dear ImGui Debug Log", p_open) || GetCurrentWindow()->BeginCount > 1)
+    {
+        End();
+        return;
+    }
+
+    AlignTextToFramePadding();
+    Text("Log events:");
+    SameLine(); CheckboxFlags("All", &g.DebugLogFlags, ImGuiDebugLogFlags_EventMask_);
+    SameLine(); CheckboxFlags("ActiveId", &g.DebugLogFlags, ImGuiDebugLogFlags_EventActiveId);
+    SameLine(); CheckboxFlags("Focus", &g.DebugLogFlags, ImGuiDebugLogFlags_EventFocus);
+    SameLine(); CheckboxFlags("Popup", &g.DebugLogFlags, ImGuiDebugLogFlags_EventPopup);
+    SameLine(); CheckboxFlags("Nav", &g.DebugLogFlags, ImGuiDebugLogFlags_EventNav);
+
+    if (SmallButton("Clear"))
+        g.DebugLogBuf.clear();
+    SameLine();
+    if (SmallButton("Copy"))
+        SetClipboardText(g.DebugLogBuf.c_str());
+    BeginChild("##log", ImVec2(0.0f, 0.0f), true, ImGuiWindowFlags_AlwaysVerticalScrollbar | ImGuiWindowFlags_AlwaysHorizontalScrollbar);
+    TextUnformatted(g.DebugLogBuf.begin(), g.DebugLogBuf.end()); // FIXME-OPT: Could use a line index, but TextUnformatted() has a semi-decent fast path for large text.
+    if (GetScrollY() >= GetScrollMaxY())
+        SetScrollHereY(1.0f);
+    EndChild();
+
+    End();
+}
+
+//-----------------------------------------------------------------------------
+// [SECTION] OTHER DEBUG TOOLS (ITEM PICKER, STACK TOOL)
+//-----------------------------------------------------------------------------
+
+// [DEBUG] Item picker tool - start with DebugStartItemPicker() - useful to visually select an item and break into its call-stack.
+void ImGui::UpdateDebugToolItemPicker()
+{
+    ImGuiContext& g = *GImGui;
+    g.DebugItemPickerBreakId = 0;
+    if (!g.DebugItemPickerActive)
+        return;
+
+    const ImGuiID hovered_id = g.HoveredIdPreviousFrame;
+    SetMouseCursor(ImGuiMouseCursor_Hand);
+    if (IsKeyPressed(ImGuiKey_Escape))
+        g.DebugItemPickerActive = false;
+    if (IsMouseClicked(0) && hovered_id)
+    {
+        g.DebugItemPickerBreakId = hovered_id;
+        g.DebugItemPickerActive = false;
+    }
+    SetNextWindowBgAlpha(0.60f);
+    BeginTooltip();
+    Text("HoveredId: 0x%08X", hovered_id);
+    Text("Press ESC to abort picking.");
+    TextColored(GetStyleColorVec4(hovered_id ? ImGuiCol_Text : ImGuiCol_TextDisabled), "Click to break in debugger!");
+    EndTooltip();
+}
+
+// [DEBUG] Stack Tool: update queries. Called by NewFrame()
+void ImGui::UpdateDebugToolStackQueries()
+{
+    ImGuiContext& g = *GImGui;
+    ImGuiStackTool* tool = &g.DebugStackTool;
+
+    // Clear hook when stack tool is not visible
+    g.DebugHookIdInfo = 0;
+    if (g.FrameCount != tool->LastActiveFrame + 1)
+        return;
+
+    // Update queries. The steps are: -1: query Stack, >= 0: query each stack item
+    // We can only perform 1 ID Info query every frame. This is designed so the GetID() tests are cheap and constant-time
+    const ImGuiID query_id = g.HoveredIdPreviousFrame ? g.HoveredIdPreviousFrame : g.ActiveId;
+    if (tool->QueryId != query_id)
+    {
+        tool->QueryId = query_id;
+        tool->StackLevel = -1;
+        tool->Results.resize(0);
+    }
+    if (query_id == 0)
+        return;
+
+    // Advance to next stack level when we got our result, or after 2 frames (in case we never get a result)
+    int stack_level = tool->StackLevel;
+    if (stack_level >= 0 && stack_level < tool->Results.Size)
+        if (tool->Results[stack_level].QuerySuccess || tool->Results[stack_level].QueryFrameCount > 2)
+            tool->StackLevel++;
+
+    // Update hook
+    stack_level = tool->StackLevel;
+    if (stack_level == -1)
+        g.DebugHookIdInfo = query_id;
+    if (stack_level >= 0 && stack_level < tool->Results.Size)
+    {
+        g.DebugHookIdInfo = tool->Results[stack_level].ID;
+        tool->Results[stack_level].QueryFrameCount++;
+    }
+}
+
+// [DEBUG] Stack tool: hooks called by GetID() family functions
+void ImGui::DebugHookIdInfo(ImGuiID id, ImGuiDataType data_type, const void* data_id, const void* data_id_end)
+{
+    ImGuiContext& g = *GImGui;
+    ImGuiWindow* window = g.CurrentWindow;
+    ImGuiStackTool* tool = &g.DebugStackTool;
+
+    // Step 0: stack query
+    // This assume that the ID was computed with the current ID stack, which tends to be the case for our widget.
+    if (tool->StackLevel == -1)
+    {
+        tool->StackLevel++;
+        tool->Results.resize(window->IDStack.Size + 1, ImGuiStackLevelInfo());
+        for (int n = 0; n < window->IDStack.Size + 1; n++)
+            tool->Results[n].ID = (n < window->IDStack.Size) ? window->IDStack[n] : id;
+        return;
+    }
+
+    // Step 1+: query for individual level
+    IM_ASSERT(tool->StackLevel >= 0);
+    if (tool->StackLevel != window->IDStack.Size)
+        return;
+    ImGuiStackLevelInfo* info = &tool->Results[tool->StackLevel];
+    IM_ASSERT(info->ID == id && info->QueryFrameCount > 0);
+
+    switch (data_type)
+    {
+    case ImGuiDataType_S32:
+        ImFormatString(info->Desc, IM_ARRAYSIZE(info->Desc), "%d", (int)(intptr_t)data_id);
+        break;
+    case ImGuiDataType_String:
+        ImFormatString(info->Desc, IM_ARRAYSIZE(info->Desc), "%.*s", data_id_end ? (int)((const char*)data_id_end - (const char*)data_id) : (int)strlen((const char*)data_id), (const char*)data_id);
+        break;
+    case ImGuiDataType_Pointer:
+        ImFormatString(info->Desc, IM_ARRAYSIZE(info->Desc), "(void*)0x%p", data_id);
+        break;
+    case ImGuiDataType_ID:
+        if (info->Desc[0] != 0) // PushOverrideID() is often used to avoid hashing twice, which would lead to 2 calls to DebugHookIdInfo(). We prioritize the first one.
+            return;
+        ImFormatString(info->Desc, IM_ARRAYSIZE(info->Desc), "0x%08X [override]", id);
+        break;
+    default:
+        IM_ASSERT(0);
+    }
+    info->QuerySuccess = true;
+    info->DataType = data_type;
+}
+
+static int StackToolFormatLevelInfo(ImGuiStackTool* tool, int n, bool format_for_ui, char* buf, size_t buf_size)
+{
+    ImGuiStackLevelInfo* info = &tool->Results[n];
+    ImGuiWindow* window = (info->Desc[0] == 0 && n == 0) ? ImGui::FindWindowByID(info->ID) : NULL;
+    if (window)                                                                 // Source: window name (because the root ID don't call GetID() and so doesn't get hooked)
+        return ImFormatString(buf, buf_size, format_for_ui ? "\"%s\" [window]" : "%s", window->Name);
+    if (info->QuerySuccess)                                                     // Source: GetID() hooks (prioritize over ItemInfo() because we frequently use patterns like: PushID(str), Button("") where they both have same id)
+        return ImFormatString(buf, buf_size, (format_for_ui && info->DataType == ImGuiDataType_String) ? "\"%s\"" : "%s", info->Desc);
+    if (tool->StackLevel < tool->Results.Size)                                  // Only start using fallback below when all queries are done, so during queries we don't flickering ??? markers.
+        return (*buf = 0);
+#ifdef IMGUI_ENABLE_TEST_ENGINE
+    if (const char* label = ImGuiTestEngine_FindItemDebugLabel(GImGui, info->ID))   // Source: ImGuiTestEngine's ItemInfo()
+        return ImFormatString(buf, buf_size, format_for_ui ? "??? \"%s\"" : "%s", label);
+#endif
+    return ImFormatString(buf, buf_size, "???");
+}
+
+// Stack Tool: Display UI
+void ImGui::ShowStackToolWindow(bool* p_open)
+{
+    ImGuiContext& g = *GImGui;
+    if (!(g.NextWindowData.Flags & ImGuiNextWindowDataFlags_HasSize))
+        SetNextWindowSize(ImVec2(0.0f, GetFontSize() * 8.0f), ImGuiCond_FirstUseEver);
+    if (!Begin("Dear ImGui Stack Tool", p_open) || GetCurrentWindow()->BeginCount > 1)
+    {
+        End();
+        return;
+    }
+
+    // Display hovered/active status
+    ImGuiStackTool* tool = &g.DebugStackTool;
+    const ImGuiID hovered_id = g.HoveredIdPreviousFrame;
+    const ImGuiID active_id = g.ActiveId;
+#ifdef IMGUI_ENABLE_TEST_ENGINE
+    Text("HoveredId: 0x%08X (\"%s\"), ActiveId:  0x%08X (\"%s\")", hovered_id, hovered_id ? ImGuiTestEngine_FindItemDebugLabel(&g, hovered_id) : "", active_id, active_id ? ImGuiTestEngine_FindItemDebugLabel(&g, active_id) : "");
+#else
+    Text("HoveredId: 0x%08X, ActiveId:  0x%08X", hovered_id, active_id);
+#endif
+    SameLine();
+    MetricsHelpMarker("Hover an item with the mouse to display elements of the ID Stack leading to the item's final ID.\nEach level of the stack correspond to a PushID() call.\nAll levels of the stack are hashed together to make the final ID of a widget (ID displayed at the bottom level of the stack).\nRead FAQ entry about the ID stack for details.");
+
+    // CTRL+C to copy path
+    const float time_since_copy = (float)g.Time - tool->CopyToClipboardLastTime;
+    Checkbox("Ctrl+C: copy path to clipboard", &tool->CopyToClipboardOnCtrlC);
+    SameLine();
+    TextColored((time_since_copy >= 0.0f && time_since_copy < 0.75f && ImFmod(time_since_copy, 0.25f) < 0.25f * 0.5f) ? ImVec4(1.f, 1.f, 0.3f, 1.f) : ImVec4(), "*COPIED*");
+    if (tool->CopyToClipboardOnCtrlC && IsKeyDown(ImGuiKey_ModCtrl) && IsKeyPressed(ImGuiKey_C))
+    {
+        tool->CopyToClipboardLastTime = (float)g.Time;
+        char* p = g.TempBuffer.Data;
+        char* p_end = p + g.TempBuffer.Size;
+        for (int stack_n = 0; stack_n < tool->Results.Size && p + 3 < p_end; stack_n++)
+        {
+            *p++ = '/';
+            char level_desc[256];
+            StackToolFormatLevelInfo(tool, stack_n, false, level_desc, IM_ARRAYSIZE(level_desc));
+            for (int n = 0; level_desc[n] && p + 2 < p_end; n++)
+            {
+                if (level_desc[n] == '/')
+                    *p++ = '\\';
+                *p++ = level_desc[n];
+            }
+        }
+        *p = '\0';
+        SetClipboardText(g.TempBuffer.Data);
+    }
+
+    // Display decorated stack
+    tool->LastActiveFrame = g.FrameCount;
+    if (tool->Results.Size > 0 && BeginTable("##table", 3, ImGuiTableFlags_Borders))
+    {
+        const float id_width = CalcTextSize("0xDDDDDDDD").x;
+        TableSetupColumn("Seed", ImGuiTableColumnFlags_WidthFixed, id_width);
+        TableSetupColumn("PushID", ImGuiTableColumnFlags_WidthStretch);
+        TableSetupColumn("Result", ImGuiTableColumnFlags_WidthFixed, id_width);
+        TableHeadersRow();
+        for (int n = 0; n < tool->Results.Size; n++)
+        {
+            ImGuiStackLevelInfo* info = &tool->Results[n];
+            TableNextColumn();
+            Text("0x%08X", (n > 0) ? tool->Results[n - 1].ID : 0);
+            TableNextColumn();
+            StackToolFormatLevelInfo(tool, n, true, g.TempBuffer.Data, g.TempBuffer.Size);
+            TextUnformatted(g.TempBuffer.Data);
+            TableNextColumn();
+            Text("0x%08X", info->ID);
+            if (n == tool->Results.Size - 1)
+                TableSetBgColor(ImGuiTableBgTarget_CellBg, GetColorU32(ImGuiCol_Header));
+        }
+        EndTable();
+    }
+    End();
+}
+
+#else
+
+void ImGui::ShowMetricsWindow(bool*) {}
+void ImGui::ShowFontAtlas(ImFontAtlas*) {}
+void ImGui::DebugNodeColumns(ImGuiOldColumns*) {}
+void ImGui::DebugNodeDrawList(ImGuiWindow*, const ImDrawList*, const char*) {}
+void ImGui::DebugNodeDrawCmdShowMeshAndBoundingBox(ImDrawList*, const ImDrawList*, const ImDrawCmd*, bool, bool) {}
+void ImGui::DebugNodeFont(ImFont*) {}
+void ImGui::DebugNodeStorage(ImGuiStorage*, const char*) {}
+void ImGui::DebugNodeTabBar(ImGuiTabBar*, const char*) {}
+void ImGui::DebugNodeWindow(ImGuiWindow*, const char*) {}
+void ImGui::DebugNodeWindowSettings(ImGuiWindowSettings*) {}
+void ImGui::DebugNodeWindowsList(ImVector<ImGuiWindow*>*, const char*) {}
+void ImGui::DebugNodeViewport(ImGuiViewportP*) {}
+
+void ImGui::DebugLog(const char*, ...) {}
+void ImGui::DebugLogV(const char*, va_list) {}
+void ImGui::ShowDebugLogWindow(bool*) {}
+void ImGui::ShowStackToolWindow(bool*) {}
+void ImGui::DebugHookIdInfo(ImGuiID, ImGuiDataType, const void*, const void*) {}
+void ImGui::UpdateDebugToolItemPicker() {}
+void ImGui::UpdateDebugToolStackQueries() {}
+
+#endif // #ifndef IMGUI_DISABLE_DEBUG_TOOLS
+
+//-----------------------------------------------------------------------------
+
+// Include imgui_user.inl at the end of imgui.cpp to access private data/functions that aren't exposed.
+// Prefer just including imgui_internal.h from your code rather than using this define. If a declaration is missing from imgui_internal.h add it or request it on the github.
+#ifdef IMGUI_INCLUDE_IMGUI_USER_INL
+#include "imgui_user.inl"
+#endif
+
+//-----------------------------------------------------------------------------
+
+#endif // #ifndef IMGUI_DISABLE
diff --git a/tests/manual/rhi/shared/imgui/imgui/imgui.h b/tests/manual/rhi/shared/imgui/imgui/imgui.h
new file mode 100644
index 00000000..bc5fbd61
--- /dev/null
+++ b/tests/manual/rhi/shared/imgui/imgui/imgui.h
@@ -0,0 +1,3065 @@
+// dear imgui, v1.88
+// (headers)
+
+// Help:
+// - Read FAQ at http://dearimgui.org/faq
+// - Newcomers, read 'Programmer guide' in imgui.cpp for notes on how to setup Dear ImGui in your codebase.
+// - Call and read ImGui::ShowDemoWindow() in imgui_demo.cpp. All applications in examples/ are doing that.
+// Read imgui.cpp for details, links and comments.
+
+// Resources:
+// - FAQ                   http://dearimgui.org/faq
+// - Homepage & latest     https://github.com/ocornut/imgui
+// - Releases & changelog  https://github.com/ocornut/imgui/releases
+// - Gallery               https://github.com/ocornut/imgui/issues/5243 (please post your screenshots/video there!)
+// - Wiki                  https://github.com/ocornut/imgui/wiki (lots of good stuff there)
+// - Glossary              https://github.com/ocornut/imgui/wiki/Glossary
+// - Issues & support      https://github.com/ocornut/imgui/issues
+
+// Getting Started?
+// - For first-time users having issues compiling/linking/running or issues loading fonts:
+//   please post in https://github.com/ocornut/imgui/discussions if you cannot find a solution in resources above.
+
+/*
+
+Index of this file:
+// [SECTION] Header mess
+// [SECTION] Forward declarations and basic types
+// [SECTION] Dear ImGui end-user API functions
+// [SECTION] Flags & Enumerations
+// [SECTION] Helpers: Memory allocations macros, ImVector<>
+// [SECTION] ImGuiStyle
+// [SECTION] ImGuiIO
+// [SECTION] Misc data structures (ImGuiInputTextCallbackData, ImGuiSizeCallbackData, ImGuiPayload, ImGuiTableSortSpecs, ImGuiTableColumnSortSpecs)
+// [SECTION] Helpers (ImGuiOnceUponAFrame, ImGuiTextFilter, ImGuiTextBuffer, ImGuiStorage, ImGuiListClipper, ImColor)
+// [SECTION] Drawing API (ImDrawCallback, ImDrawCmd, ImDrawIdx, ImDrawVert, ImDrawChannel, ImDrawListSplitter, ImDrawFlags, ImDrawListFlags, ImDrawList, ImDrawData)
+// [SECTION] Font API (ImFontConfig, ImFontGlyph, ImFontGlyphRangesBuilder, ImFontAtlasFlags, ImFontAtlas, ImFont)
+// [SECTION] Viewports (ImGuiViewportFlags, ImGuiViewport)
+// [SECTION] Platform Dependent Interfaces (ImGuiPlatformImeData)
+// [SECTION] Obsolete functions and types
+
+*/
+
+#pragma once
+
+// Configuration file with compile-time options (edit imconfig.h or '#define IMGUI_USER_CONFIG "myfilename.h" from your build system')
+#ifdef IMGUI_USER_CONFIG
+#include IMGUI_USER_CONFIG
+#endif
+#if !defined(IMGUI_DISABLE_INCLUDE_IMCONFIG_H) || defined(IMGUI_INCLUDE_IMCONFIG_H)
+#include "imconfig.h"
+#endif
+
+#ifndef IMGUI_DISABLE
+
+//-----------------------------------------------------------------------------
+// [SECTION] Header mess
+//-----------------------------------------------------------------------------
+
+// Includes
+#include <float.h>                  // FLT_MIN, FLT_MAX
+#include <stdarg.h>                 // va_list, va_start, va_end
+#include <stddef.h>                 // ptrdiff_t, NULL
+#include <string.h>                 // memset, memmove, memcpy, strlen, strchr, strcpy, strcmp
+
+// Version
+// (Integer encoded as XYYZZ for use in #if preprocessor conditionals. Work in progress versions typically starts at XYY99 then bounce up to XYY00, XYY01 etc. when release tagging happens)
+#define IMGUI_VERSION               "1.88"
+#define IMGUI_VERSION_NUM           18800
+#define IMGUI_CHECKVERSION()        ImGui::DebugCheckVersionAndDataLayout(IMGUI_VERSION, sizeof(ImGuiIO), sizeof(ImGuiStyle), sizeof(ImVec2), sizeof(ImVec4), sizeof(ImDrawVert), sizeof(ImDrawIdx))
+#define IMGUI_HAS_TABLE
+
+// Define attributes of all API symbols declarations (e.g. for DLL under Windows)
+// IMGUI_API is used for core imgui functions, IMGUI_IMPL_API is used for the default backends files (imgui_impl_xxx.h)
+// Using dear imgui via a shared library is not recommended, because we don't guarantee backward nor forward ABI compatibility (also function call overhead, as dear imgui is a call-heavy API)
+#ifndef IMGUI_API
+#define IMGUI_API
+#endif
+#ifndef IMGUI_IMPL_API
+#define IMGUI_IMPL_API              IMGUI_API
+#endif
+
+// Helper Macros
+#ifndef IM_ASSERT
+#include <assert.h>
+#define IM_ASSERT(_EXPR)            assert(_EXPR)                               // You can override the default assert handler by editing imconfig.h
+#endif
+#define IM_ARRAYSIZE(_ARR)          ((int)(sizeof(_ARR) / sizeof(*(_ARR))))     // Size of a static C-style array. Don't use on pointers!
+#define IM_UNUSED(_VAR)             ((void)(_VAR))                              // Used to silence "unused variable warnings". Often useful as asserts may be stripped out from final builds.
+#define IM_OFFSETOF(_TYPE,_MEMBER)  offsetof(_TYPE, _MEMBER)                    // Offset of _MEMBER within _TYPE. Standardized as offsetof() in C++11
+
+// Helper Macros - IM_FMTARGS, IM_FMTLIST: Apply printf-style warnings to our formatting functions.
+#if !defined(IMGUI_USE_STB_SPRINTF) && defined(__MINGW32__) && !defined(__clang__)
+#define IM_FMTARGS(FMT)             __attribute__((format(gnu_printf, FMT, FMT+1)))
+#define IM_FMTLIST(FMT)             __attribute__((format(gnu_printf, FMT, 0)))
+#elif !defined(IMGUI_USE_STB_SPRINTF) && (defined(__clang__) || defined(__GNUC__))
+#define IM_FMTARGS(FMT)             __attribute__((format(printf, FMT, FMT+1)))
+#define IM_FMTLIST(FMT)             __attribute__((format(printf, FMT, 0)))
+#else
+#define IM_FMTARGS(FMT)
+#define IM_FMTLIST(FMT)
+#endif
+
+// Disable some of MSVC most aggressive Debug runtime checks in function header/footer (used in some simple/low-level functions)
+#if defined(_MSC_VER) && !defined(__clang__)  && !defined(__INTEL_COMPILER) && !defined(IMGUI_DEBUG_PARANOID)
+#define IM_MSVC_RUNTIME_CHECKS_OFF      __pragma(runtime_checks("",off))     __pragma(check_stack(off)) __pragma(strict_gs_check(push,off))
+#define IM_MSVC_RUNTIME_CHECKS_RESTORE  __pragma(runtime_checks("",restore)) __pragma(check_stack())    __pragma(strict_gs_check(pop))
+#else
+#define IM_MSVC_RUNTIME_CHECKS_OFF
+#define IM_MSVC_RUNTIME_CHECKS_RESTORE
+#endif
+
+// Warnings
+#ifdef _MSC_VER
+#pragma warning (push)
+#pragma warning (disable: 26495)    // [Static Analyzer] Variable 'XXX' is uninitialized. Always initialize a member variable (type.6).
+#endif
+#if defined(__clang__)
+#pragma clang diagnostic push
+#pragma clang diagnostic ignored "-Wold-style-cast"
+#if __has_warning("-Wzero-as-null-pointer-constant")
+#pragma clang diagnostic ignored "-Wzero-as-null-pointer-constant"
+#endif
+#elif defined(__GNUC__)
+#pragma GCC diagnostic push
+#pragma GCC diagnostic ignored "-Wpragmas"          // warning: unknown option after '#pragma GCC diagnostic' kind
+#pragma GCC diagnostic ignored "-Wclass-memaccess"  // [__GNUC__ >= 8] warning: 'memset/memcpy' clearing/writing an object of type 'xxxx' with no trivial copy-assignment; use assignment or value-initialization instead
+#endif
+
+//-----------------------------------------------------------------------------
+// [SECTION] Forward declarations and basic types
+//-----------------------------------------------------------------------------
+
+// Forward declarations
+struct ImDrawChannel;               // Temporary storage to output draw commands out of order, used by ImDrawListSplitter and ImDrawList::ChannelsSplit()
+struct ImDrawCmd;                   // A single draw command within a parent ImDrawList (generally maps to 1 GPU draw call, unless it is a callback)
+struct ImDrawData;                  // All draw command lists required to render the frame + pos/size coordinates to use for the projection matrix.
+struct ImDrawList;                  // A single draw command list (generally one per window, conceptually you may see this as a dynamic "mesh" builder)
+struct ImDrawListSharedData;        // Data shared among multiple draw lists (typically owned by parent ImGui context, but you may create one yourself)
+struct ImDrawListSplitter;          // Helper to split a draw list into different layers which can be drawn into out of order, then flattened back.
+struct ImDrawVert;                  // A single vertex (pos + uv + col = 20 bytes by default. Override layout with IMGUI_OVERRIDE_DRAWVERT_STRUCT_LAYOUT)
+struct ImFont;                      // Runtime data for a single font within a parent ImFontAtlas
+struct ImFontAtlas;                 // Runtime data for multiple fonts, bake multiple fonts into a single texture, TTF/OTF font loader
+struct ImFontBuilderIO;             // Opaque interface to a font builder (stb_truetype or FreeType).
+struct ImFontConfig;                // Configuration data when adding a font or merging fonts
+struct ImFontGlyph;                 // A single font glyph (code point + coordinates within in ImFontAtlas + offset)
+struct ImFontGlyphRangesBuilder;    // Helper to build glyph ranges from text/string data
+struct ImColor;                     // Helper functions to create a color that can be converted to either u32 or float4 (*OBSOLETE* please avoid using)
+struct ImGuiContext;                // Dear ImGui context (opaque structure, unless including imgui_internal.h)
+struct ImGuiIO;                     // Main configuration and I/O between your application and ImGui
+struct ImGuiInputTextCallbackData;  // Shared state of InputText() when using custom ImGuiInputTextCallback (rare/advanced use)
+struct ImGuiKeyData;                // Storage for ImGuiIO and IsKeyDown(), IsKeyPressed() etc functions.
+struct ImGuiListClipper;            // Helper to manually clip large list of items
+struct ImGuiOnceUponAFrame;         // Helper for running a block of code not more than once a frame
+struct ImGuiPayload;                // User data payload for drag and drop operations
+struct ImGuiPlatformImeData;        // Platform IME data for io.SetPlatformImeDataFn() function.
+struct ImGuiSizeCallbackData;       // Callback data when using SetNextWindowSizeConstraints() (rare/advanced use)
+struct ImGuiStorage;                // Helper for key->value storage
+struct ImGuiStyle;                  // Runtime data for styling/colors
+struct ImGuiTableSortSpecs;         // Sorting specifications for a table (often handling sort specs for a single column, occasionally more)
+struct ImGuiTableColumnSortSpecs;   // Sorting specification for one column of a table
+struct ImGuiTextBuffer;             // Helper to hold and append into a text buffer (~string builder)
+struct ImGuiTextFilter;             // Helper to parse and apply text filters (e.g. "aaaaa[,bbbbb][,ccccc]")
+struct ImGuiViewport;               // A Platform Window (always only one in 'master' branch), in the future may represent Platform Monitor
+
+// Enums/Flags (declared as int for compatibility with old C++, to allow using as flags without overhead, and to not pollute the top of this file)
+// - Tip: Use your programming IDE navigation facilities on the names in the _central column_ below to find the actual flags/enum lists!
+//   In Visual Studio IDE: CTRL+comma ("Edit.GoToAll") can follow symbols in comments, whereas CTRL+F12 ("Edit.GoToImplementation") cannot.
+//   With Visual Assist installed: ALT+G ("VAssistX.GoToImplementation") can also follow symbols in comments.
+typedef int ImGuiCol;               // -> enum ImGuiCol_             // Enum: A color identifier for styling
+typedef int ImGuiCond;              // -> enum ImGuiCond_            // Enum: A condition for many Set*() functions
+typedef int ImGuiDataType;          // -> enum ImGuiDataType_        // Enum: A primary data type
+typedef int ImGuiDir;               // -> enum ImGuiDir_             // Enum: A cardinal direction
+typedef int ImGuiKey;               // -> enum ImGuiKey_             // Enum: A key identifier
+typedef int ImGuiNavInput;          // -> enum ImGuiNavInput_        // Enum: An input identifier for navigation
+typedef int ImGuiMouseButton;       // -> enum ImGuiMouseButton_     // Enum: A mouse button identifier (0=left, 1=right, 2=middle)
+typedef int ImGuiMouseCursor;       // -> enum ImGuiMouseCursor_     // Enum: A mouse cursor identifier
+typedef int ImGuiSortDirection;     // -> enum ImGuiSortDirection_   // Enum: A sorting direction (ascending or descending)
+typedef int ImGuiStyleVar;          // -> enum ImGuiStyleVar_        // Enum: A variable identifier for styling
+typedef int ImGuiTableBgTarget;     // -> enum ImGuiTableBgTarget_   // Enum: A color target for TableSetBgColor()
+typedef int ImDrawFlags;            // -> enum ImDrawFlags_          // Flags: for ImDrawList functions
+typedef int ImDrawListFlags;        // -> enum ImDrawListFlags_      // Flags: for ImDrawList instance
+typedef int ImFontAtlasFlags;       // -> enum ImFontAtlasFlags_     // Flags: for ImFontAtlas build
+typedef int ImGuiBackendFlags;      // -> enum ImGuiBackendFlags_    // Flags: for io.BackendFlags
+typedef int ImGuiButtonFlags;       // -> enum ImGuiButtonFlags_     // Flags: for InvisibleButton()
+typedef int ImGuiColorEditFlags;    // -> enum ImGuiColorEditFlags_  // Flags: for ColorEdit4(), ColorPicker4() etc.
+typedef int ImGuiConfigFlags;       // -> enum ImGuiConfigFlags_     // Flags: for io.ConfigFlags
+typedef int ImGuiComboFlags;        // -> enum ImGuiComboFlags_      // Flags: for BeginCombo()
+typedef int ImGuiDragDropFlags;     // -> enum ImGuiDragDropFlags_   // Flags: for BeginDragDropSource(), AcceptDragDropPayload()
+typedef int ImGuiFocusedFlags;      // -> enum ImGuiFocusedFlags_    // Flags: for IsWindowFocused()
+typedef int ImGuiHoveredFlags;      // -> enum ImGuiHoveredFlags_    // Flags: for IsItemHovered(), IsWindowHovered() etc.
+typedef int ImGuiInputTextFlags;    // -> enum ImGuiInputTextFlags_  // Flags: for InputText(), InputTextMultiline()
+typedef int ImGuiModFlags;          // -> enum ImGuiModFlags_        // Flags: for io.KeyMods (Ctrl/Shift/Alt/Super)
+typedef int ImGuiPopupFlags;        // -> enum ImGuiPopupFlags_      // Flags: for OpenPopup*(), BeginPopupContext*(), IsPopupOpen()
+typedef int ImGuiSelectableFlags;   // -> enum ImGuiSelectableFlags_ // Flags: for Selectable()
+typedef int ImGuiSliderFlags;       // -> enum ImGuiSliderFlags_     // Flags: for DragFloat(), DragInt(), SliderFloat(), SliderInt() etc.
+typedef int ImGuiTabBarFlags;       // -> enum ImGuiTabBarFlags_     // Flags: for BeginTabBar()
+typedef int ImGuiTabItemFlags;      // -> enum ImGuiTabItemFlags_    // Flags: for BeginTabItem()
+typedef int ImGuiTableFlags;        // -> enum ImGuiTableFlags_      // Flags: For BeginTable()
+typedef int ImGuiTableColumnFlags;  // -> enum ImGuiTableColumnFlags_// Flags: For TableSetupColumn()
+typedef int ImGuiTableRowFlags;     // -> enum ImGuiTableRowFlags_   // Flags: For TableNextRow()
+typedef int ImGuiTreeNodeFlags;     // -> enum ImGuiTreeNodeFlags_   // Flags: for TreeNode(), TreeNodeEx(), CollapsingHeader()
+typedef int ImGuiViewportFlags;     // -> enum ImGuiViewportFlags_   // Flags: for ImGuiViewport
+typedef int ImGuiWindowFlags;       // -> enum ImGuiWindowFlags_     // Flags: for Begin(), BeginChild()
+
+// ImTexture: user data for renderer backend to identify a texture [Compile-time configurable type]
+// - To use something else than an opaque void* pointer: override with e.g. '#define ImTextureID MyTextureType*' in your imconfig.h file.
+// - This can be whatever to you want it to be! read the FAQ about ImTextureID for details.
+#ifndef ImTextureID
+typedef void* ImTextureID;          // Default: store a pointer or an integer fitting in a pointer (most renderer backends are ok with that)
+#endif
+
+// ImDrawIdx: vertex index. [Compile-time configurable type]
+// - To use 16-bit indices + allow large meshes: backend need to set 'io.BackendFlags |= ImGuiBackendFlags_RendererHasVtxOffset' and handle ImDrawCmd::VtxOffset (recommended).
+// - To use 32-bit indices: override with '#define ImDrawIdx unsigned int' in your imconfig.h file.
+#ifndef ImDrawIdx
+typedef unsigned short ImDrawIdx;   // Default: 16-bit (for maximum compatibility with renderer backends)
+#endif
+
+// Scalar data types
+typedef unsigned int        ImGuiID;// A unique ID used by widgets (typically the result of hashing a stack of string)
+typedef signed char         ImS8;   // 8-bit signed integer
+typedef unsigned char       ImU8;   // 8-bit unsigned integer
+typedef signed short        ImS16;  // 16-bit signed integer
+typedef unsigned short      ImU16;  // 16-bit unsigned integer
+typedef signed int          ImS32;  // 32-bit signed integer == int
+typedef unsigned int        ImU32;  // 32-bit unsigned integer (often used to store packed colors)
+typedef signed   long long  ImS64;  // 64-bit signed integer
+typedef unsigned long long  ImU64;  // 64-bit unsigned integer
+
+// Character types
+// (we generally use UTF-8 encoded string in the API. This is storage specifically for a decoded character used for keyboard input and display)
+typedef unsigned short ImWchar16;   // A single decoded U16 character/code point. We encode them as multi bytes UTF-8 when used in strings.
+typedef unsigned int ImWchar32;     // A single decoded U32 character/code point. We encode them as multi bytes UTF-8 when used in strings.
+#ifdef IMGUI_USE_WCHAR32            // ImWchar [configurable type: override in imconfig.h with '#define IMGUI_USE_WCHAR32' to support Unicode planes 1-16]
+typedef ImWchar32 ImWchar;
+#else
+typedef ImWchar16 ImWchar;
+#endif
+
+// Callback and functions types
+typedef int     (*ImGuiInputTextCallback)(ImGuiInputTextCallbackData* data);    // Callback function for ImGui::InputText()
+typedef void    (*ImGuiSizeCallback)(ImGuiSizeCallbackData* data);              // Callback function for ImGui::SetNextWindowSizeConstraints()
+typedef void*   (*ImGuiMemAllocFunc)(size_t sz, void* user_data);               // Function signature for ImGui::SetAllocatorFunctions()
+typedef void    (*ImGuiMemFreeFunc)(void* ptr, void* user_data);                // Function signature for ImGui::SetAllocatorFunctions()
+
+// ImVec2: 2D vector used to store positions, sizes etc. [Compile-time configurable type]
+// This is a frequently used type in the API. Consider using IM_VEC2_CLASS_EXTRA to create implicit cast from/to our preferred type.
+IM_MSVC_RUNTIME_CHECKS_OFF
+struct ImVec2
+{
+    float                                   x, y;
+    constexpr ImVec2()                      : x(0.0f), y(0.0f) { }
+    constexpr ImVec2(float _x, float _y)    : x(_x), y(_y) { }
+    float  operator[] (size_t idx) const    { IM_ASSERT(idx <= 1); return (&x)[idx]; }    // We very rarely use this [] operator, the assert overhead is fine.
+    float& operator[] (size_t idx)          { IM_ASSERT(idx <= 1); return (&x)[idx]; }    // We very rarely use this [] operator, the assert overhead is fine.
+#ifdef IM_VEC2_CLASS_EXTRA
+    IM_VEC2_CLASS_EXTRA     // Define additional constructors and implicit cast operators in imconfig.h to convert back and forth between your math types and ImVec2.
+#endif
+};
+
+// ImVec4: 4D vector used to store clipping rectangles, colors etc. [Compile-time configurable type]
+struct ImVec4
+{
+    float                                                     x, y, z, w;
+    constexpr ImVec4()                                        : x(0.0f), y(0.0f), z(0.0f), w(0.0f) { }
+    constexpr ImVec4(float _x, float _y, float _z, float _w)  : x(_x), y(_y), z(_z), w(_w) { }
+#ifdef IM_VEC4_CLASS_EXTRA
+    IM_VEC4_CLASS_EXTRA     // Define additional constructors and implicit cast operators in imconfig.h to convert back and forth between your math types and ImVec4.
+#endif
+};
+IM_MSVC_RUNTIME_CHECKS_RESTORE
+
+//-----------------------------------------------------------------------------
+// [SECTION] Dear ImGui end-user API functions
+// (Note that ImGui:: being a namespace, you can add extra ImGui:: functions in your own separate file. Please don't modify imgui source files!)
+//-----------------------------------------------------------------------------
+
+namespace ImGui
+{
+    // Context creation and access
+    // - Each context create its own ImFontAtlas by default. You may instance one yourself and pass it to CreateContext() to share a font atlas between contexts.
+    // - DLL users: heaps and globals are not shared across DLL boundaries! You will need to call SetCurrentContext() + SetAllocatorFunctions()
+    //   for each static/DLL boundary you are calling from. Read "Context and Memory Allocators" section of imgui.cpp for details.
+    IMGUI_API ImGuiContext* CreateContext(ImFontAtlas* shared_font_atlas = NULL);
+    IMGUI_API void          DestroyContext(ImGuiContext* ctx = NULL);   // NULL = destroy current context
+    IMGUI_API ImGuiContext* GetCurrentContext();
+    IMGUI_API void          SetCurrentContext(ImGuiContext* ctx);
+
+    // Main
+    IMGUI_API ImGuiIO&      GetIO();                                    // access the IO structure (mouse/keyboard/gamepad inputs, time, various configuration options/flags)
+    IMGUI_API ImGuiStyle&   GetStyle();                                 // access the Style structure (colors, sizes). Always use PushStyleCol(), PushStyleVar() to modify style mid-frame!
+    IMGUI_API void          NewFrame();                                 // start a new Dear ImGui frame, you can submit any command from this point until Render()/EndFrame().
+    IMGUI_API void          EndFrame();                                 // ends the Dear ImGui frame. automatically called by Render(). If you don't need to render data (skipping rendering) you may call EndFrame() without Render()... but you'll have wasted CPU already! If you don't need to render, better to not create any windows and not call NewFrame() at all!
+    IMGUI_API void          Render();                                   // ends the Dear ImGui frame, finalize the draw data. You can then get call GetDrawData().
+    IMGUI_API ImDrawData*   GetDrawData();                              // valid after Render() and until the next call to NewFrame(). this is what you have to render.
+
+    // Demo, Debug, Information
+    IMGUI_API void          ShowDemoWindow(bool* p_open = NULL);        // create Demo window. demonstrate most ImGui features. call this to learn about the library! try to make it always available in your application!
+    IMGUI_API void          ShowMetricsWindow(bool* p_open = NULL);     // create Metrics/Debugger window. display Dear ImGui internals: windows, draw commands, various internal state, etc.
+    IMGUI_API void          ShowDebugLogWindow(bool* p_open = NULL);    // create Debug Log window. display a simplified log of important dear imgui events.
+    IMGUI_API void          ShowStackToolWindow(bool* p_open = NULL);   // create Stack Tool window. hover items with mouse to query information about the source of their unique ID.
+    IMGUI_API void          ShowAboutWindow(bool* p_open = NULL);       // create About window. display Dear ImGui version, credits and build/system information.
+    IMGUI_API void          ShowStyleEditor(ImGuiStyle* ref = NULL);    // add style editor block (not a window). you can pass in a reference ImGuiStyle structure to compare to, revert to and save to (else it uses the default style)
+    IMGUI_API bool          ShowStyleSelector(const char* label);       // add style selector block (not a window), essentially a combo listing the default styles.
+    IMGUI_API void          ShowFontSelector(const char* label);        // add font selector block (not a window), essentially a combo listing the loaded fonts.
+    IMGUI_API void          ShowUserGuide();                            // add basic help/info block (not a window): how to manipulate ImGui as a end-user (mouse/keyboard controls).
+    IMGUI_API const char*   GetVersion();                               // get the compiled version string e.g. "1.80 WIP" (essentially the value for IMGUI_VERSION from the compiled version of imgui.cpp)
+
+    // Styles
+    IMGUI_API void          StyleColorsDark(ImGuiStyle* dst = NULL);    // new, recommended style (default)
+    IMGUI_API void          StyleColorsLight(ImGuiStyle* dst = NULL);   // best used with borders and a custom, thicker font
+    IMGUI_API void          StyleColorsClassic(ImGuiStyle* dst = NULL); // classic imgui style
+
+    // Windows
+    // - Begin() = push window to the stack and start appending to it. End() = pop window from the stack.
+    // - Passing 'bool* p_open != NULL' shows a window-closing widget in the upper-right corner of the window,
+    //   which clicking will set the boolean to false when clicked.
+    // - You may append multiple times to the same window during the same frame by calling Begin()/End() pairs multiple times.
+    //   Some information such as 'flags' or 'p_open' will only be considered by the first call to Begin().
+    // - Begin() return false to indicate the window is collapsed or fully clipped, so you may early out and omit submitting
+    //   anything to the window. Always call a matching End() for each Begin() call, regardless of its return value!
+    //   [Important: due to legacy reason, this is inconsistent with most other functions such as BeginMenu/EndMenu,
+    //    BeginPopup/EndPopup, etc. where the EndXXX call should only be called if the corresponding BeginXXX function
+    //    returned true. Begin and BeginChild are the only odd ones out. Will be fixed in a future update.]
+    // - Note that the bottom of window stack always contains a window called "Debug".
+    IMGUI_API bool          Begin(const char* name, bool* p_open = NULL, ImGuiWindowFlags flags = 0);
+    IMGUI_API void          End();
+
+    // Child Windows
+    // - Use child windows to begin into a self-contained independent scrolling/clipping regions within a host window. Child windows can embed their own child.
+    // - For each independent axis of 'size': ==0.0f: use remaining host window size / >0.0f: fixed size / <0.0f: use remaining window size minus abs(size) / Each axis can use a different mode, e.g. ImVec2(0,400).
+    // - BeginChild() returns false to indicate the window is collapsed or fully clipped, so you may early out and omit submitting anything to the window.
+    //   Always call a matching EndChild() for each BeginChild() call, regardless of its return value.
+    //   [Important: due to legacy reason, this is inconsistent with most other functions such as BeginMenu/EndMenu,
+    //    BeginPopup/EndPopup, etc. where the EndXXX call should only be called if the corresponding BeginXXX function
+    //    returned true. Begin and BeginChild are the only odd ones out. Will be fixed in a future update.]
+    IMGUI_API bool          BeginChild(const char* str_id, const ImVec2& size = ImVec2(0, 0), bool border = false, ImGuiWindowFlags flags = 0);
+    IMGUI_API bool          BeginChild(ImGuiID id, const ImVec2& size = ImVec2(0, 0), bool border = false, ImGuiWindowFlags flags = 0);
+    IMGUI_API void          EndChild();
+
+    // Windows Utilities
+    // - 'current window' = the window we are appending into while inside a Begin()/End() block. 'next window' = next window we will Begin() into.
+    IMGUI_API bool          IsWindowAppearing();
+    IMGUI_API bool          IsWindowCollapsed();
+    IMGUI_API bool          IsWindowFocused(ImGuiFocusedFlags flags=0); // is current window focused? or its root/child, depending on flags. see flags for options.
+    IMGUI_API bool          IsWindowHovered(ImGuiHoveredFlags flags=0); // is current window hovered (and typically: not blocked by a popup/modal)? see flags for options. NB: If you are trying to check whether your mouse should be dispatched to imgui or to your app, you should use the 'io.WantCaptureMouse' boolean for that! Please read the FAQ!
+    IMGUI_API ImDrawList*   GetWindowDrawList();                        // get draw list associated to the current window, to append your own drawing primitives
+    IMGUI_API ImVec2        GetWindowPos();                             // get current window position in screen space (useful if you want to do your own drawing via the DrawList API)
+    IMGUI_API ImVec2        GetWindowSize();                            // get current window size
+    IMGUI_API float         GetWindowWidth();                           // get current window width (shortcut for GetWindowSize().x)
+    IMGUI_API float         GetWindowHeight();                          // get current window height (shortcut for GetWindowSize().y)
+
+    // Window manipulation
+    // - Prefer using SetNextXXX functions (before Begin) rather that SetXXX functions (after Begin).
+    IMGUI_API void          SetNextWindowPos(const ImVec2& pos, ImGuiCond cond = 0, const ImVec2& pivot = ImVec2(0, 0)); // set next window position. call before Begin(). use pivot=(0.5f,0.5f) to center on given point, etc.
+    IMGUI_API void          SetNextWindowSize(const ImVec2& size, ImGuiCond cond = 0);                  // set next window size. set axis to 0.0f to force an auto-fit on this axis. call before Begin()
+    IMGUI_API void          SetNextWindowSizeConstraints(const ImVec2& size_min, const ImVec2& size_max, ImGuiSizeCallback custom_callback = NULL, void* custom_callback_data = NULL); // set next window size limits. use -1,-1 on either X/Y axis to preserve the current size. Sizes will be rounded down. Use callback to apply non-trivial programmatic constraints.
+    IMGUI_API void          SetNextWindowContentSize(const ImVec2& size);                               // set next window content size (~ scrollable client area, which enforce the range of scrollbars). Not including window decorations (title bar, menu bar, etc.) nor WindowPadding. set an axis to 0.0f to leave it automatic. call before Begin()
+    IMGUI_API void          SetNextWindowCollapsed(bool collapsed, ImGuiCond cond = 0);                 // set next window collapsed state. call before Begin()
+    IMGUI_API void          SetNextWindowFocus();                                                       // set next window to be focused / top-most. call before Begin()
+    IMGUI_API void          SetNextWindowBgAlpha(float alpha);                                          // set next window background color alpha. helper to easily override the Alpha component of ImGuiCol_WindowBg/ChildBg/PopupBg. you may also use ImGuiWindowFlags_NoBackground.
+    IMGUI_API void          SetWindowPos(const ImVec2& pos, ImGuiCond cond = 0);                        // (not recommended) set current window position - call within Begin()/End(). prefer using SetNextWindowPos(), as this may incur tearing and side-effects.
+    IMGUI_API void          SetWindowSize(const ImVec2& size, ImGuiCond cond = 0);                      // (not recommended) set current window size - call within Begin()/End(). set to ImVec2(0, 0) to force an auto-fit. prefer using SetNextWindowSize(), as this may incur tearing and minor side-effects.
+    IMGUI_API void          SetWindowCollapsed(bool collapsed, ImGuiCond cond = 0);                     // (not recommended) set current window collapsed state. prefer using SetNextWindowCollapsed().
+    IMGUI_API void          SetWindowFocus();                                                           // (not recommended) set current window to be focused / top-most. prefer using SetNextWindowFocus().
+    IMGUI_API void          SetWindowFontScale(float scale);                                            // [OBSOLETE] set font scale. Adjust IO.FontGlobalScale if you want to scale all windows. This is an old API! For correct scaling, prefer to reload font + rebuild ImFontAtlas + call style.ScaleAllSizes().
+    IMGUI_API void          SetWindowPos(const char* name, const ImVec2& pos, ImGuiCond cond = 0);      // set named window position.
+    IMGUI_API void          SetWindowSize(const char* name, const ImVec2& size, ImGuiCond cond = 0);    // set named window size. set axis to 0.0f to force an auto-fit on this axis.
+    IMGUI_API void          SetWindowCollapsed(const char* name, bool collapsed, ImGuiCond cond = 0);   // set named window collapsed state
+    IMGUI_API void          SetWindowFocus(const char* name);                                           // set named window to be focused / top-most. use NULL to remove focus.
+
+    // Content region
+    // - Retrieve available space from a given point. GetContentRegionAvail() is frequently useful.
+    // - Those functions are bound to be redesigned (they are confusing, incomplete and the Min/Max return values are in local window coordinates which increases confusion)
+    IMGUI_API ImVec2        GetContentRegionAvail();                                        // == GetContentRegionMax() - GetCursorPos()
+    IMGUI_API ImVec2        GetContentRegionMax();                                          // current content boundaries (typically window boundaries including scrolling, or current column boundaries), in windows coordinates
+    IMGUI_API ImVec2        GetWindowContentRegionMin();                                    // content boundaries min for the full window (roughly (0,0)-Scroll), in window coordinates
+    IMGUI_API ImVec2        GetWindowContentRegionMax();                                    // content boundaries max for the full window (roughly (0,0)+Size-Scroll) where Size can be override with SetNextWindowContentSize(), in window coordinates
+
+    // Windows Scrolling
+    IMGUI_API float         GetScrollX();                                                   // get scrolling amount [0 .. GetScrollMaxX()]
+    IMGUI_API float         GetScrollY();                                                   // get scrolling amount [0 .. GetScrollMaxY()]
+    IMGUI_API void          SetScrollX(float scroll_x);                                     // set scrolling amount [0 .. GetScrollMaxX()]
+    IMGUI_API void          SetScrollY(float scroll_y);                                     // set scrolling amount [0 .. GetScrollMaxY()]
+    IMGUI_API float         GetScrollMaxX();                                                // get maximum scrolling amount ~~ ContentSize.x - WindowSize.x - DecorationsSize.x
+    IMGUI_API float         GetScrollMaxY();                                                // get maximum scrolling amount ~~ ContentSize.y - WindowSize.y - DecorationsSize.y
+    IMGUI_API void          SetScrollHereX(float center_x_ratio = 0.5f);                    // adjust scrolling amount to make current cursor position visible. center_x_ratio=0.0: left, 0.5: center, 1.0: right. When using to make a "default/current item" visible, consider using SetItemDefaultFocus() instead.
+    IMGUI_API void          SetScrollHereY(float center_y_ratio = 0.5f);                    // adjust scrolling amount to make current cursor position visible. center_y_ratio=0.0: top, 0.5: center, 1.0: bottom. When using to make a "default/current item" visible, consider using SetItemDefaultFocus() instead.
+    IMGUI_API void          SetScrollFromPosX(float local_x, float center_x_ratio = 0.5f);  // adjust scrolling amount to make given position visible. Generally GetCursorStartPos() + offset to compute a valid position.
+    IMGUI_API void          SetScrollFromPosY(float local_y, float center_y_ratio = 0.5f);  // adjust scrolling amount to make given position visible. Generally GetCursorStartPos() + offset to compute a valid position.
+
+    // Parameters stacks (shared)
+    IMGUI_API void          PushFont(ImFont* font);                                         // use NULL as a shortcut to push default font
+    IMGUI_API void          PopFont();
+    IMGUI_API void          PushStyleColor(ImGuiCol idx, ImU32 col);                        // modify a style color. always use this if you modify the style after NewFrame().
+    IMGUI_API void          PushStyleColor(ImGuiCol idx, const ImVec4& col);
+    IMGUI_API void          PopStyleColor(int count = 1);
+    IMGUI_API void          PushStyleVar(ImGuiStyleVar idx, float val);                     // modify a style float variable. always use this if you modify the style after NewFrame().
+    IMGUI_API void          PushStyleVar(ImGuiStyleVar idx, const ImVec2& val);             // modify a style ImVec2 variable. always use this if you modify the style after NewFrame().
+    IMGUI_API void          PopStyleVar(int count = 1);
+    IMGUI_API void          PushAllowKeyboardFocus(bool allow_keyboard_focus);              // == tab stop enable. Allow focusing using TAB/Shift-TAB, enabled by default but you can disable it for certain widgets
+    IMGUI_API void          PopAllowKeyboardFocus();
+    IMGUI_API void          PushButtonRepeat(bool repeat);                                  // in 'repeat' mode, Button*() functions return repeated true in a typematic manner (using io.KeyRepeatDelay/io.KeyRepeatRate setting). Note that you can call IsItemActive() after any Button() to tell if the button is held in the current frame.
+    IMGUI_API void          PopButtonRepeat();
+
+    // Parameters stacks (current window)
+    IMGUI_API void          PushItemWidth(float item_width);                                // push width of items for common large "item+label" widgets. >0.0f: width in pixels, <0.0f align xx pixels to the right of window (so -FLT_MIN always align width to the right side).
+    IMGUI_API void          PopItemWidth();
+    IMGUI_API void          SetNextItemWidth(float item_width);                             // set width of the _next_ common large "item+label" widget. >0.0f: width in pixels, <0.0f align xx pixels to the right of window (so -FLT_MIN always align width to the right side)
+    IMGUI_API float         CalcItemWidth();                                                // width of item given pushed settings and current cursor position. NOT necessarily the width of last item unlike most 'Item' functions.
+    IMGUI_API void          PushTextWrapPos(float wrap_local_pos_x = 0.0f);                 // push word-wrapping position for Text*() commands. < 0.0f: no wrapping; 0.0f: wrap to end of window (or column); > 0.0f: wrap at 'wrap_pos_x' position in window local space
+    IMGUI_API void          PopTextWrapPos();
+
+    // Style read access
+    // - Use the style editor (ShowStyleEditor() function) to interactively see what the colors are)
+    IMGUI_API ImFont*       GetFont();                                                      // get current font
+    IMGUI_API float         GetFontSize();                                                  // get current font size (= height in pixels) of current font with current scale applied
+    IMGUI_API ImVec2        GetFontTexUvWhitePixel();                                       // get UV coordinate for a while pixel, useful to draw custom shapes via the ImDrawList API
+    IMGUI_API ImU32         GetColorU32(ImGuiCol idx, float alpha_mul = 1.0f);              // retrieve given style color with style alpha applied and optional extra alpha multiplier, packed as a 32-bit value suitable for ImDrawList
+    IMGUI_API ImU32         GetColorU32(const ImVec4& col);                                 // retrieve given color with style alpha applied, packed as a 32-bit value suitable for ImDrawList
+    IMGUI_API ImU32         GetColorU32(ImU32 col);                                         // retrieve given color with style alpha applied, packed as a 32-bit value suitable for ImDrawList
+    IMGUI_API const ImVec4& GetStyleColorVec4(ImGuiCol idx);                                // retrieve style color as stored in ImGuiStyle structure. use to feed back into PushStyleColor(), otherwise use GetColorU32() to get style color with style alpha baked in.
+
+    // Cursor / Layout
+    // - By "cursor" we mean the current output position.
+    // - The typical widget behavior is to output themselves at the current cursor position, then move the cursor one line down.
+    // - You can call SameLine() between widgets to undo the last carriage return and output at the right of the preceding widget.
+    // - Attention! We currently have inconsistencies between window-local and absolute positions we will aim to fix with future API:
+    //    Window-local coordinates:   SameLine(), GetCursorPos(), SetCursorPos(), GetCursorStartPos(), GetContentRegionMax(), GetWindowContentRegion*(), PushTextWrapPos()
+    //    Absolute coordinate:        GetCursorScreenPos(), SetCursorScreenPos(), all ImDrawList:: functions.
+    IMGUI_API void          Separator();                                                    // separator, generally horizontal. inside a menu bar or in horizontal layout mode, this becomes a vertical separator.
+    IMGUI_API void          SameLine(float offset_from_start_x=0.0f, float spacing=-1.0f);  // call between widgets or groups to layout them horizontally. X position given in window coordinates.
+    IMGUI_API void          NewLine();                                                      // undo a SameLine() or force a new line when in an horizontal-layout context.
+    IMGUI_API void          Spacing();                                                      // add vertical spacing.
+    IMGUI_API void          Dummy(const ImVec2& size);                                      // add a dummy item of given size. unlike InvisibleButton(), Dummy() won't take the mouse click or be navigable into.
+    IMGUI_API void          Indent(float indent_w = 0.0f);                                  // move content position toward the right, by indent_w, or style.IndentSpacing if indent_w <= 0
+    IMGUI_API void          Unindent(float indent_w = 0.0f);                                // move content position back to the left, by indent_w, or style.IndentSpacing if indent_w <= 0
+    IMGUI_API void          BeginGroup();                                                   // lock horizontal starting position
+    IMGUI_API void          EndGroup();                                                     // unlock horizontal starting position + capture the whole group bounding box into one "item" (so you can use IsItemHovered() or layout primitives such as SameLine() on whole group, etc.)
+    IMGUI_API ImVec2        GetCursorPos();                                                 // cursor position in window coordinates (relative to window position)
+    IMGUI_API float         GetCursorPosX();                                                //   (some functions are using window-relative coordinates, such as: GetCursorPos, GetCursorStartPos, GetContentRegionMax, GetWindowContentRegion* etc.
+    IMGUI_API float         GetCursorPosY();                                                //    other functions such as GetCursorScreenPos or everything in ImDrawList::
+    IMGUI_API void          SetCursorPos(const ImVec2& local_pos);                          //    are using the main, absolute coordinate system.
+    IMGUI_API void          SetCursorPosX(float local_x);                                   //    GetWindowPos() + GetCursorPos() == GetCursorScreenPos() etc.)
+    IMGUI_API void          SetCursorPosY(float local_y);                                   //
+    IMGUI_API ImVec2        GetCursorStartPos();                                            // initial cursor position in window coordinates
+    IMGUI_API ImVec2        GetCursorScreenPos();                                           // cursor position in absolute coordinates (useful to work with ImDrawList API). generally top-left == GetMainViewport()->Pos == (0,0) in single viewport mode, and bottom-right == GetMainViewport()->Pos+Size == io.DisplaySize in single-viewport mode.
+    IMGUI_API void          SetCursorScreenPos(const ImVec2& pos);                          // cursor position in absolute coordinates
+    IMGUI_API void          AlignTextToFramePadding();                                      // vertically align upcoming text baseline to FramePadding.y so that it will align properly to regularly framed items (call if you have text on a line before a framed item)
+    IMGUI_API float         GetTextLineHeight();                                            // ~ FontSize
+    IMGUI_API float         GetTextLineHeightWithSpacing();                                 // ~ FontSize + style.ItemSpacing.y (distance in pixels between 2 consecutive lines of text)
+    IMGUI_API float         GetFrameHeight();                                               // ~ FontSize + style.FramePadding.y * 2
+    IMGUI_API float         GetFrameHeightWithSpacing();                                    // ~ FontSize + style.FramePadding.y * 2 + style.ItemSpacing.y (distance in pixels between 2 consecutive lines of framed widgets)
+
+    // ID stack/scopes
+    // Read the FAQ (docs/FAQ.md or http://dearimgui.org/faq) for more details about how ID are handled in dear imgui.
+    // - Those questions are answered and impacted by understanding of the ID stack system:
+    //   - "Q: Why is my widget not reacting when I click on it?"
+    //   - "Q: How can I have widgets with an empty label?"
+    //   - "Q: How can I have multiple widgets with the same label?"
+    // - Short version: ID are hashes of the entire ID stack. If you are creating widgets in a loop you most likely
+    //   want to push a unique identifier (e.g. object pointer, loop index) to uniquely differentiate them.
+    // - You can also use the "Label##foobar" syntax within widget label to distinguish them from each others.
+    // - In this header file we use the "label"/"name" terminology to denote a string that will be displayed + used as an ID,
+    //   whereas "str_id" denote a string that is only used as an ID and not normally displayed.
+    IMGUI_API void          PushID(const char* str_id);                                     // push string into the ID stack (will hash string).
+    IMGUI_API void          PushID(const char* str_id_begin, const char* str_id_end);       // push string into the ID stack (will hash string).
+    IMGUI_API void          PushID(const void* ptr_id);                                     // push pointer into the ID stack (will hash pointer).
+    IMGUI_API void          PushID(int int_id);                                             // push integer into the ID stack (will hash integer).
+    IMGUI_API void          PopID();                                                        // pop from the ID stack.
+    IMGUI_API ImGuiID       GetID(const char* str_id);                                      // calculate unique ID (hash of whole ID stack + given parameter). e.g. if you want to query into ImGuiStorage yourself
+    IMGUI_API ImGuiID       GetID(const char* str_id_begin, const char* str_id_end);
+    IMGUI_API ImGuiID       GetID(const void* ptr_id);
+
+    // Widgets: Text
+    IMGUI_API void          TextUnformatted(const char* text, const char* text_end = NULL); // raw text without formatting. Roughly equivalent to Text("%s", text) but: A) doesn't require null terminated string if 'text_end' is specified, B) it's faster, no memory copy is done, no buffer size limits, recommended for long chunks of text.
+    IMGUI_API void          Text(const char* fmt, ...)                                      IM_FMTARGS(1); // formatted text
+    IMGUI_API void          TextV(const char* fmt, va_list args)                            IM_FMTLIST(1);
+    IMGUI_API void          TextColored(const ImVec4& col, const char* fmt, ...)            IM_FMTARGS(2); // shortcut for PushStyleColor(ImGuiCol_Text, col); Text(fmt, ...); PopStyleColor();
+    IMGUI_API void          TextColoredV(const ImVec4& col, const char* fmt, va_list args)  IM_FMTLIST(2);
+    IMGUI_API void          TextDisabled(const char* fmt, ...)                              IM_FMTARGS(1); // shortcut for PushStyleColor(ImGuiCol_Text, style.Colors[ImGuiCol_TextDisabled]); Text(fmt, ...); PopStyleColor();
+    IMGUI_API void          TextDisabledV(const char* fmt, va_list args)                    IM_FMTLIST(1);
+    IMGUI_API void          TextWrapped(const char* fmt, ...)                               IM_FMTARGS(1); // shortcut for PushTextWrapPos(0.0f); Text(fmt, ...); PopTextWrapPos();. Note that this won't work on an auto-resizing window if there's no other widgets to extend the window width, yoy may need to set a size using SetNextWindowSize().
+    IMGUI_API void          TextWrappedV(const char* fmt, va_list args)                     IM_FMTLIST(1);
+    IMGUI_API void          LabelText(const char* label, const char* fmt, ...)              IM_FMTARGS(2); // display text+label aligned the same way as value+label widgets
+    IMGUI_API void          LabelTextV(const char* label, const char* fmt, va_list args)    IM_FMTLIST(2);
+    IMGUI_API void          BulletText(const char* fmt, ...)                                IM_FMTARGS(1); // shortcut for Bullet()+Text()
+    IMGUI_API void          BulletTextV(const char* fmt, va_list args)                      IM_FMTLIST(1);
+
+    // Widgets: Main
+    // - Most widgets return true when the value has been changed or when pressed/selected
+    // - You may also use one of the many IsItemXXX functions (e.g. IsItemActive, IsItemHovered, etc.) to query widget state.
+    IMGUI_API bool          Button(const char* label, const ImVec2& size = ImVec2(0, 0));   // button
+    IMGUI_API bool          SmallButton(const char* label);                                 // button with FramePadding=(0,0) to easily embed within text
+    IMGUI_API bool          InvisibleButton(const char* str_id, const ImVec2& size, ImGuiButtonFlags flags = 0); // flexible button behavior without the visuals, frequently useful to build custom behaviors using the public api (along with IsItemActive, IsItemHovered, etc.)
+    IMGUI_API bool          ArrowButton(const char* str_id, ImGuiDir dir);                  // square button with an arrow shape
+    IMGUI_API void          Image(ImTextureID user_texture_id, const ImVec2& size, const ImVec2& uv0 = ImVec2(0, 0), const ImVec2& uv1 = ImVec2(1,1), const ImVec4& tint_col = ImVec4(1,1,1,1), const ImVec4& border_col = ImVec4(0,0,0,0));
+    IMGUI_API bool          ImageButton(ImTextureID user_texture_id, const ImVec2& size, const ImVec2& uv0 = ImVec2(0, 0),  const ImVec2& uv1 = ImVec2(1,1), int frame_padding = -1, const ImVec4& bg_col = ImVec4(0,0,0,0), const ImVec4& tint_col = ImVec4(1,1,1,1));    // <0 frame_padding uses default frame padding settings. 0 for no padding
+    IMGUI_API bool          Checkbox(const char* label, bool* v);
+    IMGUI_API bool          CheckboxFlags(const char* label, int* flags, int flags_value);
+    IMGUI_API bool          CheckboxFlags(const char* label, unsigned int* flags, unsigned int flags_value);
+    IMGUI_API bool          RadioButton(const char* label, bool active);                    // use with e.g. if (RadioButton("one", my_value==1)) { my_value = 1; }
+    IMGUI_API bool          RadioButton(const char* label, int* v, int v_button);           // shortcut to handle the above pattern when value is an integer
+    IMGUI_API void          ProgressBar(float fraction, const ImVec2& size_arg = ImVec2(-FLT_MIN, 0), const char* overlay = NULL);
+    IMGUI_API void          Bullet();                                                       // draw a small circle + keep the cursor on the same line. advance cursor x position by GetTreeNodeToLabelSpacing(), same distance that TreeNode() uses
+
+    // Widgets: Combo Box
+    // - The BeginCombo()/EndCombo() api allows you to manage your contents and selection state however you want it, by creating e.g. Selectable() items.
+    // - The old Combo() api are helpers over BeginCombo()/EndCombo() which are kept available for convenience purpose. This is analogous to how ListBox are created.
+    IMGUI_API bool          BeginCombo(const char* label, const char* preview_value, ImGuiComboFlags flags = 0);
+    IMGUI_API void          EndCombo(); // only call EndCombo() if BeginCombo() returns true!
+    IMGUI_API bool          Combo(const char* label, int* current_item, const char* const items[], int items_count, int popup_max_height_in_items = -1);
+    IMGUI_API bool          Combo(const char* label, int* current_item, const char* items_separated_by_zeros, int popup_max_height_in_items = -1);      // Separate items with \0 within a string, end item-list with \0\0. e.g. "One\0Two\0Three\0"
+    IMGUI_API bool          Combo(const char* label, int* current_item, bool(*items_getter)(void* data, int idx, const char** out_text), void* data, int items_count, int popup_max_height_in_items = -1);
+
+    // Widgets: Drag Sliders
+    // - CTRL+Click on any drag box to turn them into an input box. Manually input values aren't clamped by default and can go off-bounds. Use ImGuiSliderFlags_AlwaysClamp to always clamp.
+    // - For all the Float2/Float3/Float4/Int2/Int3/Int4 versions of every functions, note that a 'float v[X]' function argument is the same as 'float* v',
+    //   the array syntax is just a way to document the number of elements that are expected to be accessible. You can pass address of your first element out of a contiguous set, e.g. &myvector.x
+    // - Adjust format string to decorate the value with a prefix, a suffix, or adapt the editing and display precision e.g. "%.3f" -> 1.234; "%5.2f secs" -> 01.23 secs; "Biscuit: %.0f" -> Biscuit: 1; etc.
+    // - Format string may also be set to NULL or use the default format ("%f" or "%d").
+    // - Speed are per-pixel of mouse movement (v_speed=0.2f: mouse needs to move by 5 pixels to increase value by 1). For gamepad/keyboard navigation, minimum speed is Max(v_speed, minimum_step_at_given_precision).
+    // - Use v_min < v_max to clamp edits to given limits. Note that CTRL+Click manual input can override those limits if ImGuiSliderFlags_AlwaysClamp is not used.
+    // - Use v_max = FLT_MAX / INT_MAX etc to avoid clamping to a maximum, same with v_min = -FLT_MAX / INT_MIN to avoid clamping to a minimum.
+    // - We use the same sets of flags for DragXXX() and SliderXXX() functions as the features are the same and it makes it easier to swap them.
+    // - Legacy: Pre-1.78 there are DragXXX() function signatures that takes a final `float power=1.0f' argument instead of the `ImGuiSliderFlags flags=0' argument.
+    //   If you get a warning converting a float to ImGuiSliderFlags, read https://github.com/ocornut/imgui/issues/3361
+    IMGUI_API bool          DragFloat(const char* label, float* v, float v_speed = 1.0f, float v_min = 0.0f, float v_max = 0.0f, const char* format = "%.3f", ImGuiSliderFlags flags = 0);     // If v_min >= v_max we have no bound
+    IMGUI_API bool          DragFloat2(const char* label, float v[2], float v_speed = 1.0f, float v_min = 0.0f, float v_max = 0.0f, const char* format = "%.3f", ImGuiSliderFlags flags = 0);
+    IMGUI_API bool          DragFloat3(const char* label, float v[3], float v_speed = 1.0f, float v_min = 0.0f, float v_max = 0.0f, const char* format = "%.3f", ImGuiSliderFlags flags = 0);
+    IMGUI_API bool          DragFloat4(const char* label, float v[4], float v_speed = 1.0f, float v_min = 0.0f, float v_max = 0.0f, const char* format = "%.3f", ImGuiSliderFlags flags = 0);
+    IMGUI_API bool          DragFloatRange2(const char* label, float* v_current_min, float* v_current_max, float v_speed = 1.0f, float v_min = 0.0f, float v_max = 0.0f, const char* format = "%.3f", const char* format_max = NULL, ImGuiSliderFlags flags = 0);
+    IMGUI_API bool          DragInt(const char* label, int* v, float v_speed = 1.0f, int v_min = 0, int v_max = 0, const char* format = "%d", ImGuiSliderFlags flags = 0);  // If v_min >= v_max we have no bound
+    IMGUI_API bool          DragInt2(const char* label, int v[2], float v_speed = 1.0f, int v_min = 0, int v_max = 0, const char* format = "%d", ImGuiSliderFlags flags = 0);
+    IMGUI_API bool          DragInt3(const char* label, int v[3], float v_speed = 1.0f, int v_min = 0, int v_max = 0, const char* format = "%d", ImGuiSliderFlags flags = 0);
+    IMGUI_API bool          DragInt4(const char* label, int v[4], float v_speed = 1.0f, int v_min = 0, int v_max = 0, const char* format = "%d", ImGuiSliderFlags flags = 0);
+    IMGUI_API bool          DragIntRange2(const char* label, int* v_current_min, int* v_current_max, float v_speed = 1.0f, int v_min = 0, int v_max = 0, const char* format = "%d", const char* format_max = NULL, ImGuiSliderFlags flags = 0);
+    IMGUI_API bool          DragScalar(const char* label, ImGuiDataType data_type, void* p_data, float v_speed = 1.0f, const void* p_min = NULL, const void* p_max = NULL, const char* format = NULL, ImGuiSliderFlags flags = 0);
+    IMGUI_API bool          DragScalarN(const char* label, ImGuiDataType data_type, void* p_data, int components, float v_speed = 1.0f, const void* p_min = NULL, const void* p_max = NULL, const char* format = NULL, ImGuiSliderFlags flags = 0);
+
+    // Widgets: Regular Sliders
+    // - CTRL+Click on any slider to turn them into an input box. Manually input values aren't clamped by default and can go off-bounds. Use ImGuiSliderFlags_AlwaysClamp to always clamp.
+    // - Adjust format string to decorate the value with a prefix, a suffix, or adapt the editing and display precision e.g. "%.3f" -> 1.234; "%5.2f secs" -> 01.23 secs; "Biscuit: %.0f" -> Biscuit: 1; etc.
+    // - Format string may also be set to NULL or use the default format ("%f" or "%d").
+    // - Legacy: Pre-1.78 there are SliderXXX() function signatures that takes a final `float power=1.0f' argument instead of the `ImGuiSliderFlags flags=0' argument.
+    //   If you get a warning converting a float to ImGuiSliderFlags, read https://github.com/ocornut/imgui/issues/3361
+    IMGUI_API bool          SliderFloat(const char* label, float* v, float v_min, float v_max, const char* format = "%.3f", ImGuiSliderFlags flags = 0);     // adjust format to decorate the value with a prefix or a suffix for in-slider labels or unit display.
+    IMGUI_API bool          SliderFloat2(const char* label, float v[2], float v_min, float v_max, const char* format = "%.3f", ImGuiSliderFlags flags = 0);
+    IMGUI_API bool          SliderFloat3(const char* label, float v[3], float v_min, float v_max, const char* format = "%.3f", ImGuiSliderFlags flags = 0);
+    IMGUI_API bool          SliderFloat4(const char* label, float v[4], float v_min, float v_max, const char* format = "%.3f", ImGuiSliderFlags flags = 0);
+    IMGUI_API bool          SliderAngle(const char* label, float* v_rad, float v_degrees_min = -360.0f, float v_degrees_max = +360.0f, const char* format = "%.0f deg", ImGuiSliderFlags flags = 0);
+    IMGUI_API bool          SliderInt(const char* label, int* v, int v_min, int v_max, const char* format = "%d", ImGuiSliderFlags flags = 0);
+    IMGUI_API bool          SliderInt2(const char* label, int v[2], int v_min, int v_max, const char* format = "%d", ImGuiSliderFlags flags = 0);
+    IMGUI_API bool          SliderInt3(const char* label, int v[3], int v_min, int v_max, const char* format = "%d", ImGuiSliderFlags flags = 0);
+    IMGUI_API bool          SliderInt4(const char* label, int v[4], int v_min, int v_max, const char* format = "%d", ImGuiSliderFlags flags = 0);
+    IMGUI_API bool          SliderScalar(const char* label, ImGuiDataType data_type, void* p_data, const void* p_min, const void* p_max, const char* format = NULL, ImGuiSliderFlags flags = 0);
+    IMGUI_API bool          SliderScalarN(const char* label, ImGuiDataType data_type, void* p_data, int components, const void* p_min, const void* p_max, const char* format = NULL, ImGuiSliderFlags flags = 0);
+    IMGUI_API bool          VSliderFloat(const char* label, const ImVec2& size, float* v, float v_min, float v_max, const char* format = "%.3f", ImGuiSliderFlags flags = 0);
+    IMGUI_API bool          VSliderInt(const char* label, const ImVec2& size, int* v, int v_min, int v_max, const char* format = "%d", ImGuiSliderFlags flags = 0);
+    IMGUI_API bool          VSliderScalar(const char* label, const ImVec2& size, ImGuiDataType data_type, void* p_data, const void* p_min, const void* p_max, const char* format = NULL, ImGuiSliderFlags flags = 0);
+
+    // Widgets: Input with Keyboard
+    // - If you want to use InputText() with std::string or any custom dynamic string type, see misc/cpp/imgui_stdlib.h and comments in imgui_demo.cpp.
+    // - Most of the ImGuiInputTextFlags flags are only useful for InputText() and not for InputFloatX, InputIntX, InputDouble etc.
+    IMGUI_API bool          InputText(const char* label, char* buf, size_t buf_size, ImGuiInputTextFlags flags = 0, ImGuiInputTextCallback callback = NULL, void* user_data = NULL);
+    IMGUI_API bool          InputTextMultiline(const char* label, char* buf, size_t buf_size, const ImVec2& size = ImVec2(0, 0), ImGuiInputTextFlags flags = 0, ImGuiInputTextCallback callback = NULL, void* user_data = NULL);
+    IMGUI_API bool          InputTextWithHint(const char* label, const char* hint, char* buf, size_t buf_size, ImGuiInputTextFlags flags = 0, ImGuiInputTextCallback callback = NULL, void* user_data = NULL);
+    IMGUI_API bool          InputFloat(const char* label, float* v, float step = 0.0f, float step_fast = 0.0f, const char* format = "%.3f", ImGuiInputTextFlags flags = 0);
+    IMGUI_API bool          InputFloat2(const char* label, float v[2], const char* format = "%.3f", ImGuiInputTextFlags flags = 0);
+    IMGUI_API bool          InputFloat3(const char* label, float v[3], const char* format = "%.3f", ImGuiInputTextFlags flags = 0);
+    IMGUI_API bool          InputFloat4(const char* label, float v[4], const char* format = "%.3f", ImGuiInputTextFlags flags = 0);
+    IMGUI_API bool          InputInt(const char* label, int* v, int step = 1, int step_fast = 100, ImGuiInputTextFlags flags = 0);
+    IMGUI_API bool          InputInt2(const char* label, int v[2], ImGuiInputTextFlags flags = 0);
+    IMGUI_API bool          InputInt3(const char* label, int v[3], ImGuiInputTextFlags flags = 0);
+    IMGUI_API bool          InputInt4(const char* label, int v[4], ImGuiInputTextFlags flags = 0);
+    IMGUI_API bool          InputDouble(const char* label, double* v, double step = 0.0, double step_fast = 0.0, const char* format = "%.6f", ImGuiInputTextFlags flags = 0);
+    IMGUI_API bool          InputScalar(const char* label, ImGuiDataType data_type, void* p_data, const void* p_step = NULL, const void* p_step_fast = NULL, const char* format = NULL, ImGuiInputTextFlags flags = 0);
+    IMGUI_API bool          InputScalarN(const char* label, ImGuiDataType data_type, void* p_data, int components, const void* p_step = NULL, const void* p_step_fast = NULL, const char* format = NULL, ImGuiInputTextFlags flags = 0);
+
+    // Widgets: Color Editor/Picker (tip: the ColorEdit* functions have a little color square that can be left-clicked to open a picker, and right-clicked to open an option menu.)
+    // - Note that in C++ a 'float v[X]' function argument is the _same_ as 'float* v', the array syntax is just a way to document the number of elements that are expected to be accessible.
+    // - You can pass the address of a first float element out of a contiguous structure, e.g. &myvector.x
+    IMGUI_API bool          ColorEdit3(const char* label, float col[3], ImGuiColorEditFlags flags = 0);
+    IMGUI_API bool          ColorEdit4(const char* label, float col[4], ImGuiColorEditFlags flags = 0);
+    IMGUI_API bool          ColorPicker3(const char* label, float col[3], ImGuiColorEditFlags flags = 0);
+    IMGUI_API bool          ColorPicker4(const char* label, float col[4], ImGuiColorEditFlags flags = 0, const float* ref_col = NULL);
+    IMGUI_API bool          ColorButton(const char* desc_id, const ImVec4& col, ImGuiColorEditFlags flags = 0, const ImVec2& size = ImVec2(0, 0)); // display a color square/button, hover for details, return true when pressed.
+    IMGUI_API void          SetColorEditOptions(ImGuiColorEditFlags flags);                     // initialize current options (generally on application startup) if you want to select a default format, picker type, etc. User will be able to change many settings, unless you pass the _NoOptions flag to your calls.
+
+    // Widgets: Trees
+    // - TreeNode functions return true when the node is open, in which case you need to also call TreePop() when you are finished displaying the tree node contents.
+    IMGUI_API bool          TreeNode(const char* label);
+    IMGUI_API bool          TreeNode(const char* str_id, const char* fmt, ...) IM_FMTARGS(2);   // helper variation to easily decorelate the id from the displayed string. Read the FAQ about why and how to use ID. to align arbitrary text at the same level as a TreeNode() you can use Bullet().
+    IMGUI_API bool          TreeNode(const void* ptr_id, const char* fmt, ...) IM_FMTARGS(2);   // "
+    IMGUI_API bool          TreeNodeV(const char* str_id, const char* fmt, va_list args) IM_FMTLIST(2);
+    IMGUI_API bool          TreeNodeV(const void* ptr_id, const char* fmt, va_list args) IM_FMTLIST(2);
+    IMGUI_API bool          TreeNodeEx(const char* label, ImGuiTreeNodeFlags flags = 0);
+    IMGUI_API bool          TreeNodeEx(const char* str_id, ImGuiTreeNodeFlags flags, const char* fmt, ...) IM_FMTARGS(3);
+    IMGUI_API bool          TreeNodeEx(const void* ptr_id, ImGuiTreeNodeFlags flags, const char* fmt, ...) IM_FMTARGS(3);
+    IMGUI_API bool          TreeNodeExV(const char* str_id, ImGuiTreeNodeFlags flags, const char* fmt, va_list args) IM_FMTLIST(3);
+    IMGUI_API bool          TreeNodeExV(const void* ptr_id, ImGuiTreeNodeFlags flags, const char* fmt, va_list args) IM_FMTLIST(3);
+    IMGUI_API void          TreePush(const char* str_id);                                       // ~ Indent()+PushId(). Already called by TreeNode() when returning true, but you can call TreePush/TreePop yourself if desired.
+    IMGUI_API void          TreePush(const void* ptr_id = NULL);                                // "
+    IMGUI_API void          TreePop();                                                          // ~ Unindent()+PopId()
+    IMGUI_API float         GetTreeNodeToLabelSpacing();                                        // horizontal distance preceding label when using TreeNode*() or Bullet() == (g.FontSize + style.FramePadding.x*2) for a regular unframed TreeNode
+    IMGUI_API bool          CollapsingHeader(const char* label, ImGuiTreeNodeFlags flags = 0);  // if returning 'true' the header is open. doesn't indent nor push on ID stack. user doesn't have to call TreePop().
+    IMGUI_API bool          CollapsingHeader(const char* label, bool* p_visible, ImGuiTreeNodeFlags flags = 0); // when 'p_visible != NULL': if '*p_visible==true' display an additional small close button on upper right of the header which will set the bool to false when clicked, if '*p_visible==false' don't display the header.
+    IMGUI_API void          SetNextItemOpen(bool is_open, ImGuiCond cond = 0);                  // set next TreeNode/CollapsingHeader open state.
+
+    // Widgets: Selectables
+    // - A selectable highlights when hovered, and can display another color when selected.
+    // - Neighbors selectable extend their highlight bounds in order to leave no gap between them. This is so a series of selected Selectable appear contiguous.
+    IMGUI_API bool          Selectable(const char* label, bool selected = false, ImGuiSelectableFlags flags = 0, const ImVec2& size = ImVec2(0, 0)); // "bool selected" carry the selection state (read-only). Selectable() is clicked is returns true so you can modify your selection state. size.x==0.0: use remaining width, size.x>0.0: specify width. size.y==0.0: use label height, size.y>0.0: specify height
+    IMGUI_API bool          Selectable(const char* label, bool* p_selected, ImGuiSelectableFlags flags = 0, const ImVec2& size = ImVec2(0, 0));      // "bool* p_selected" point to the selection state (read-write), as a convenient helper.
+
+    // Widgets: List Boxes
+    // - This is essentially a thin wrapper to using BeginChild/EndChild with some stylistic changes.
+    // - The BeginListBox()/EndListBox() api allows you to manage your contents and selection state however you want it, by creating e.g. Selectable() or any items.
+    // - The simplified/old ListBox() api are helpers over BeginListBox()/EndListBox() which are kept available for convenience purpose. This is analoguous to how Combos are created.
+    // - Choose frame width:   size.x > 0.0f: custom  /  size.x < 0.0f or -FLT_MIN: right-align   /  size.x = 0.0f (default): use current ItemWidth
+    // - Choose frame height:  size.y > 0.0f: custom  /  size.y < 0.0f or -FLT_MIN: bottom-align  /  size.y = 0.0f (default): arbitrary default height which can fit ~7 items
+    IMGUI_API bool          BeginListBox(const char* label, const ImVec2& size = ImVec2(0, 0)); // open a framed scrolling region
+    IMGUI_API void          EndListBox();                                                       // only call EndListBox() if BeginListBox() returned true!
+    IMGUI_API bool          ListBox(const char* label, int* current_item, const char* const items[], int items_count, int height_in_items = -1);
+    IMGUI_API bool          ListBox(const char* label, int* current_item, bool (*items_getter)(void* data, int idx, const char** out_text), void* data, int items_count, int height_in_items = -1);
+
+    // Widgets: Data Plotting
+    // - Consider using ImPlot (https://github.com/epezent/implot) which is much better!
+    IMGUI_API void          PlotLines(const char* label, const float* values, int values_count, int values_offset = 0, const char* overlay_text = NULL, float scale_min = FLT_MAX, float scale_max = FLT_MAX, ImVec2 graph_size = ImVec2(0, 0), int stride = sizeof(float));
+    IMGUI_API void          PlotLines(const char* label, float(*values_getter)(void* data, int idx), void* data, int values_count, int values_offset = 0, const char* overlay_text = NULL, float scale_min = FLT_MAX, float scale_max = FLT_MAX, ImVec2 graph_size = ImVec2(0, 0));
+    IMGUI_API void          PlotHistogram(const char* label, const float* values, int values_count, int values_offset = 0, const char* overlay_text = NULL, float scale_min = FLT_MAX, float scale_max = FLT_MAX, ImVec2 graph_size = ImVec2(0, 0), int stride = sizeof(float));
+    IMGUI_API void          PlotHistogram(const char* label, float(*values_getter)(void* data, int idx), void* data, int values_count, int values_offset = 0, const char* overlay_text = NULL, float scale_min = FLT_MAX, float scale_max = FLT_MAX, ImVec2 graph_size = ImVec2(0, 0));
+
+    // Widgets: Value() Helpers.
+    // - Those are merely shortcut to calling Text() with a format string. Output single value in "name: value" format (tip: freely declare more in your code to handle your types. you can add functions to the ImGui namespace)
+    IMGUI_API void          Value(const char* prefix, bool b);
+    IMGUI_API void          Value(const char* prefix, int v);
+    IMGUI_API void          Value(const char* prefix, unsigned int v);
+    IMGUI_API void          Value(const char* prefix, float v, const char* float_format = NULL);
+
+    // Widgets: Menus
+    // - Use BeginMenuBar() on a window ImGuiWindowFlags_MenuBar to append to its menu bar.
+    // - Use BeginMainMenuBar() to create a menu bar at the top of the screen and append to it.
+    // - Use BeginMenu() to create a menu. You can call BeginMenu() multiple time with the same identifier to append more items to it.
+    // - Not that MenuItem() keyboardshortcuts are displayed as a convenience but _not processed_ by Dear ImGui at the moment.
+    IMGUI_API bool          BeginMenuBar();                                                     // append to menu-bar of current window (requires ImGuiWindowFlags_MenuBar flag set on parent window).
+    IMGUI_API void          EndMenuBar();                                                       // only call EndMenuBar() if BeginMenuBar() returns true!
+    IMGUI_API bool          BeginMainMenuBar();                                                 // create and append to a full screen menu-bar.
+    IMGUI_API void          EndMainMenuBar();                                                   // only call EndMainMenuBar() if BeginMainMenuBar() returns true!
+    IMGUI_API bool          BeginMenu(const char* label, bool enabled = true);                  // create a sub-menu entry. only call EndMenu() if this returns true!
+    IMGUI_API void          EndMenu();                                                          // only call EndMenu() if BeginMenu() returns true!
+    IMGUI_API bool          MenuItem(const char* label, const char* shortcut = NULL, bool selected = false, bool enabled = true);  // return true when activated.
+    IMGUI_API bool          MenuItem(const char* label, const char* shortcut, bool* p_selected, bool enabled = true);              // return true when activated + toggle (*p_selected) if p_selected != NULL
+
+    // Tooltips
+    // - Tooltip are windows following the mouse. They do not take focus away.
+    IMGUI_API void          BeginTooltip();                                                     // begin/append a tooltip window. to create full-featured tooltip (with any kind of items).
+    IMGUI_API void          EndTooltip();
+    IMGUI_API void          SetTooltip(const char* fmt, ...) IM_FMTARGS(1);                     // set a text-only tooltip, typically use with ImGui::IsItemHovered(). override any previous call to SetTooltip().
+    IMGUI_API void          SetTooltipV(const char* fmt, va_list args) IM_FMTLIST(1);
+
+    // Popups, Modals
+    //  - They block normal mouse hovering detection (and therefore most mouse interactions) behind them.
+    //  - If not modal: they can be closed by clicking anywhere outside them, or by pressing ESCAPE.
+    //  - Their visibility state (~bool) is held internally instead of being held by the programmer as we are used to with regular Begin*() calls.
+    //  - The 3 properties above are related: we need to retain popup visibility state in the library because popups may be closed as any time.
+    //  - You can bypass the hovering restriction by using ImGuiHoveredFlags_AllowWhenBlockedByPopup when calling IsItemHovered() or IsWindowHovered().
+    //  - IMPORTANT: Popup identifiers are relative to the current ID stack, so OpenPopup and BeginPopup generally needs to be at the same level of the stack.
+    //    This is sometimes leading to confusing mistakes. May rework this in the future.
+
+    // Popups: begin/end functions
+    //  - BeginPopup(): query popup state, if open start appending into the window. Call EndPopup() afterwards. ImGuiWindowFlags are forwarded to the window.
+    //  - BeginPopupModal(): block every interactions behind the window, cannot be closed by user, add a dimming background, has a title bar.
+    IMGUI_API bool          BeginPopup(const char* str_id, ImGuiWindowFlags flags = 0);                         // return true if the popup is open, and you can start outputting to it.
+    IMGUI_API bool          BeginPopupModal(const char* name, bool* p_open = NULL, ImGuiWindowFlags flags = 0); // return true if the modal is open, and you can start outputting to it.
+    IMGUI_API void          EndPopup();                                                                         // only call EndPopup() if BeginPopupXXX() returns true!
+
+    // Popups: open/close functions
+    //  - OpenPopup(): set popup state to open. ImGuiPopupFlags are available for opening options.
+    //  - If not modal: they can be closed by clicking anywhere outside them, or by pressing ESCAPE.
+    //  - CloseCurrentPopup(): use inside the BeginPopup()/EndPopup() scope to close manually.
+    //  - CloseCurrentPopup() is called by default by Selectable()/MenuItem() when activated (FIXME: need some options).
+    //  - Use ImGuiPopupFlags_NoOpenOverExistingPopup to avoid opening a popup if there's already one at the same level. This is equivalent to e.g. testing for !IsAnyPopupOpen() prior to OpenPopup().
+    //  - Use IsWindowAppearing() after BeginPopup() to tell if a window just opened.
+    //  - IMPORTANT: Notice that for OpenPopupOnItemClick() we exceptionally default flags to 1 (== ImGuiPopupFlags_MouseButtonRight) for backward compatibility with older API taking 'int mouse_button = 1' parameter
+    IMGUI_API void          OpenPopup(const char* str_id, ImGuiPopupFlags popup_flags = 0);                     // call to mark popup as open (don't call every frame!).
+    IMGUI_API void          OpenPopup(ImGuiID id, ImGuiPopupFlags popup_flags = 0);                             // id overload to facilitate calling from nested stacks
+    IMGUI_API void          OpenPopupOnItemClick(const char* str_id = NULL, ImGuiPopupFlags popup_flags = 1);   // helper to open popup when clicked on last item. Default to ImGuiPopupFlags_MouseButtonRight == 1. (note: actually triggers on the mouse _released_ event to be consistent with popup behaviors)
+    IMGUI_API void          CloseCurrentPopup();                                                                // manually close the popup we have begin-ed into.
+
+    // Popups: open+begin combined functions helpers
+    //  - Helpers to do OpenPopup+BeginPopup where the Open action is triggered by e.g. hovering an item and right-clicking.
+    //  - They are convenient to easily create context menus, hence the name.
+    //  - IMPORTANT: Notice that BeginPopupContextXXX takes ImGuiPopupFlags just like OpenPopup() and unlike BeginPopup(). For full consistency, we may add ImGuiWindowFlags to the BeginPopupContextXXX functions in the future.
+    //  - IMPORTANT: Notice that we exceptionally default their flags to 1 (== ImGuiPopupFlags_MouseButtonRight) for backward compatibility with older API taking 'int mouse_button = 1' parameter, so if you add other flags remember to re-add the ImGuiPopupFlags_MouseButtonRight.
+    IMGUI_API bool          BeginPopupContextItem(const char* str_id = NULL, ImGuiPopupFlags popup_flags = 1);  // open+begin popup when clicked on last item. Use str_id==NULL to associate the popup to previous item. If you want to use that on a non-interactive item such as Text() you need to pass in an explicit ID here. read comments in .cpp!
+    IMGUI_API bool          BeginPopupContextWindow(const char* str_id = NULL, ImGuiPopupFlags popup_flags = 1);// open+begin popup when clicked on current window.
+    IMGUI_API bool          BeginPopupContextVoid(const char* str_id = NULL, ImGuiPopupFlags popup_flags = 1);  // open+begin popup when clicked in void (where there are no windows).
+
+    // Popups: query functions
+    //  - IsPopupOpen(): return true if the popup is open at the current BeginPopup() level of the popup stack.
+    //  - IsPopupOpen() with ImGuiPopupFlags_AnyPopupId: return true if any popup is open at the current BeginPopup() level of the popup stack.
+    //  - IsPopupOpen() with ImGuiPopupFlags_AnyPopupId + ImGuiPopupFlags_AnyPopupLevel: return true if any popup is open.
+    IMGUI_API bool          IsPopupOpen(const char* str_id, ImGuiPopupFlags flags = 0);                         // return true if the popup is open.
+
+    // Tables
+    // - Full-featured replacement for old Columns API.
+    // - See Demo->Tables for demo code. See top of imgui_tables.cpp for general commentary.
+    // - See ImGuiTableFlags_ and ImGuiTableColumnFlags_ enums for a description of available flags.
+    // The typical call flow is:
+    // - 1. Call BeginTable(), early out if returning false.
+    // - 2. Optionally call TableSetupColumn() to submit column name/flags/defaults.
+    // - 3. Optionally call TableSetupScrollFreeze() to request scroll freezing of columns/rows.
+    // - 4. Optionally call TableHeadersRow() to submit a header row. Names are pulled from TableSetupColumn() data.
+    // - 5. Populate contents:
+    //    - In most situations you can use TableNextRow() + TableSetColumnIndex(N) to start appending into a column.
+    //    - If you are using tables as a sort of grid, where every columns is holding the same type of contents,
+    //      you may prefer using TableNextColumn() instead of TableNextRow() + TableSetColumnIndex().
+    //      TableNextColumn() will automatically wrap-around into the next row if needed.
+    //    - IMPORTANT: Comparatively to the old Columns() API, we need to call TableNextColumn() for the first column!
+    //    - Summary of possible call flow:
+    //        --------------------------------------------------------------------------------------------------------
+    //        TableNextRow() -> TableSetColumnIndex(0) -> Text("Hello 0") -> TableSetColumnIndex(1) -> Text("Hello 1")  // OK
+    //        TableNextRow() -> TableNextColumn()      -> Text("Hello 0") -> TableNextColumn()      -> Text("Hello 1")  // OK
+    //                          TableNextColumn()      -> Text("Hello 0") -> TableNextColumn()      -> Text("Hello 1")  // OK: TableNextColumn() automatically gets to next row!
+    //        TableNextRow()                           -> Text("Hello 0")                                               // Not OK! Missing TableSetColumnIndex() or TableNextColumn()! Text will not appear!
+    //        --------------------------------------------------------------------------------------------------------
+    // - 5. Call EndTable()
+    IMGUI_API bool          BeginTable(const char* str_id, int column, ImGuiTableFlags flags = 0, const ImVec2& outer_size = ImVec2(0.0f, 0.0f), float inner_width = 0.0f);
+    IMGUI_API void          EndTable();                                         // only call EndTable() if BeginTable() returns true!
+    IMGUI_API void          TableNextRow(ImGuiTableRowFlags row_flags = 0, float min_row_height = 0.0f); // append into the first cell of a new row.
+    IMGUI_API bool          TableNextColumn();                                  // append into the next column (or first column of next row if currently in last column). Return true when column is visible.
+    IMGUI_API bool          TableSetColumnIndex(int column_n);                  // append into the specified column. Return true when column is visible.
+
+    // Tables: Headers & Columns declaration
+    // - Use TableSetupColumn() to specify label, resizing policy, default width/weight, id, various other flags etc.
+    // - Use TableHeadersRow() to create a header row and automatically submit a TableHeader() for each column.
+    //   Headers are required to perform: reordering, sorting, and opening the context menu.
+    //   The context menu can also be made available in columns body using ImGuiTableFlags_ContextMenuInBody.
+    // - You may manually submit headers using TableNextRow() + TableHeader() calls, but this is only useful in
+    //   some advanced use cases (e.g. adding custom widgets in header row).
+    // - Use TableSetupScrollFreeze() to lock columns/rows so they stay visible when scrolled.
+    IMGUI_API void          TableSetupColumn(const char* label, ImGuiTableColumnFlags flags = 0, float init_width_or_weight = 0.0f, ImGuiID user_id = 0);
+    IMGUI_API void          TableSetupScrollFreeze(int cols, int rows);         // lock columns/rows so they stay visible when scrolled.
+    IMGUI_API void          TableHeadersRow();                                  // submit all headers cells based on data provided to TableSetupColumn() + submit context menu
+    IMGUI_API void          TableHeader(const char* label);                     // submit one header cell manually (rarely used)
+
+    // Tables: Sorting & Miscellaneous functions
+    // - Sorting: call TableGetSortSpecs() to retrieve latest sort specs for the table. NULL when not sorting.
+    //   When 'sort_specs->SpecsDirty == true' you should sort your data. It will be true when sorting specs have
+    //   changed since last call, or the first time. Make sure to set 'SpecsDirty = false' after sorting,
+    //   else you may wastefully sort your data every frame!
+    // - Functions args 'int column_n' treat the default value of -1 as the same as passing the current column index.
+    IMGUI_API ImGuiTableSortSpecs*  TableGetSortSpecs();                        // get latest sort specs for the table (NULL if not sorting).  Lifetime: don't hold on this pointer over multiple frames or past any subsequent call to BeginTable().
+    IMGUI_API int                   TableGetColumnCount();                      // return number of columns (value passed to BeginTable)
+    IMGUI_API int                   TableGetColumnIndex();                      // return current column index.
+    IMGUI_API int                   TableGetRowIndex();                         // return current row index.
+    IMGUI_API const char*           TableGetColumnName(int column_n = -1);      // return "" if column didn't have a name declared by TableSetupColumn(). Pass -1 to use current column.
+    IMGUI_API ImGuiTableColumnFlags TableGetColumnFlags(int column_n = -1);     // return column flags so you can query their Enabled/Visible/Sorted/Hovered status flags. Pass -1 to use current column.
+    IMGUI_API void                  TableSetColumnEnabled(int column_n, bool v);// change user accessible enabled/disabled state of a column. Set to false to hide the column. User can use the context menu to change this themselves (right-click in headers, or right-click in columns body with ImGuiTableFlags_ContextMenuInBody)
+    IMGUI_API void                  TableSetBgColor(ImGuiTableBgTarget target, ImU32 color, int column_n = -1);  // change the color of a cell, row, or column. See ImGuiTableBgTarget_ flags for details.
+
+    // Legacy Columns API (prefer using Tables!)
+    // - You can also use SameLine(pos_x) to mimic simplified columns.
+    IMGUI_API void          Columns(int count = 1, const char* id = NULL, bool border = true);
+    IMGUI_API void          NextColumn();                                                       // next column, defaults to current row or next row if the current row is finished
+    IMGUI_API int           GetColumnIndex();                                                   // get current column index
+    IMGUI_API float         GetColumnWidth(int column_index = -1);                              // get column width (in pixels). pass -1 to use current column
+    IMGUI_API void          SetColumnWidth(int column_index, float width);                      // set column width (in pixels). pass -1 to use current column
+    IMGUI_API float         GetColumnOffset(int column_index = -1);                             // get position of column line (in pixels, from the left side of the contents region). pass -1 to use current column, otherwise 0..GetColumnsCount() inclusive. column 0 is typically 0.0f
+    IMGUI_API void          SetColumnOffset(int column_index, float offset_x);                  // set position of column line (in pixels, from the left side of the contents region). pass -1 to use current column
+    IMGUI_API int           GetColumnsCount();
+
+    // Tab Bars, Tabs
+    IMGUI_API bool          BeginTabBar(const char* str_id, ImGuiTabBarFlags flags = 0);        // create and append into a TabBar
+    IMGUI_API void          EndTabBar();                                                        // only call EndTabBar() if BeginTabBar() returns true!
+    IMGUI_API bool          BeginTabItem(const char* label, bool* p_open = NULL, ImGuiTabItemFlags flags = 0); // create a Tab. Returns true if the Tab is selected.
+    IMGUI_API void          EndTabItem();                                                       // only call EndTabItem() if BeginTabItem() returns true!
+    IMGUI_API bool          TabItemButton(const char* label, ImGuiTabItemFlags flags = 0);      // create a Tab behaving like a button. return true when clicked. cannot be selected in the tab bar.
+    IMGUI_API void          SetTabItemClosed(const char* tab_or_docked_window_label);           // notify TabBar or Docking system of a closed tab/window ahead (useful to reduce visual flicker on reorderable tab bars). For tab-bar: call after BeginTabBar() and before Tab submissions. Otherwise call with a window name.
+
+    // Logging/Capture
+    // - All text output from the interface can be captured into tty/file/clipboard. By default, tree nodes are automatically opened during logging.
+    IMGUI_API void          LogToTTY(int auto_open_depth = -1);                                 // start logging to tty (stdout)
+    IMGUI_API void          LogToFile(int auto_open_depth = -1, const char* filename = NULL);   // start logging to file
+    IMGUI_API void          LogToClipboard(int auto_open_depth = -1);                           // start logging to OS clipboard
+    IMGUI_API void          LogFinish();                                                        // stop logging (close file, etc.)
+    IMGUI_API void          LogButtons();                                                       // helper to display buttons for logging to tty/file/clipboard
+    IMGUI_API void          LogText(const char* fmt, ...) IM_FMTARGS(1);                        // pass text data straight to log (without being displayed)
+    IMGUI_API void          LogTextV(const char* fmt, va_list args) IM_FMTLIST(1);
+
+    // Drag and Drop
+    // - On source items, call BeginDragDropSource(), if it returns true also call SetDragDropPayload() + EndDragDropSource().
+    // - On target candidates, call BeginDragDropTarget(), if it returns true also call AcceptDragDropPayload() + EndDragDropTarget().
+    // - If you stop calling BeginDragDropSource() the payload is preserved however it won't have a preview tooltip (we currently display a fallback "..." tooltip, see #1725)
+    // - An item can be both drag source and drop target.
+    IMGUI_API bool          BeginDragDropSource(ImGuiDragDropFlags flags = 0);                                      // call after submitting an item which may be dragged. when this return true, you can call SetDragDropPayload() + EndDragDropSource()
+    IMGUI_API bool          SetDragDropPayload(const char* type, const void* data, size_t sz, ImGuiCond cond = 0);  // type is a user defined string of maximum 32 characters. Strings starting with '_' are reserved for dear imgui internal types. Data is copied and held by imgui. Return true when payload has been accepted.
+    IMGUI_API void          EndDragDropSource();                                                                    // only call EndDragDropSource() if BeginDragDropSource() returns true!
+    IMGUI_API bool                  BeginDragDropTarget();                                                          // call after submitting an item that may receive a payload. If this returns true, you can call AcceptDragDropPayload() + EndDragDropTarget()
+    IMGUI_API const ImGuiPayload*   AcceptDragDropPayload(const char* type, ImGuiDragDropFlags flags = 0);          // accept contents of a given type. If ImGuiDragDropFlags_AcceptBeforeDelivery is set you can peek into the payload before the mouse button is released.
+    IMGUI_API void                  EndDragDropTarget();                                                            // only call EndDragDropTarget() if BeginDragDropTarget() returns true!
+    IMGUI_API const ImGuiPayload*   GetDragDropPayload();                                                           // peek directly into the current payload from anywhere. may return NULL. use ImGuiPayload::IsDataType() to test for the payload type.
+
+    // Disabling [BETA API]
+    // - Disable all user interactions and dim items visuals (applying style.DisabledAlpha over current colors)
+    // - Those can be nested but it cannot be used to enable an already disabled section (a single BeginDisabled(true) in the stack is enough to keep everything disabled)
+    // - BeginDisabled(false) essentially does nothing useful but is provided to facilitate use of boolean expressions. If you can avoid calling BeginDisabled(False)/EndDisabled() best to avoid it.
+    IMGUI_API void          BeginDisabled(bool disabled = true);
+    IMGUI_API void          EndDisabled();
+
+    // Clipping
+    // - Mouse hovering is affected by ImGui::PushClipRect() calls, unlike direct calls to ImDrawList::PushClipRect() which are render only.
+    IMGUI_API void          PushClipRect(const ImVec2& clip_rect_min, const ImVec2& clip_rect_max, bool intersect_with_current_clip_rect);
+    IMGUI_API void          PopClipRect();
+
+    // Focus, Activation
+    // - Prefer using "SetItemDefaultFocus()" over "if (IsWindowAppearing()) SetScrollHereY()" when applicable to signify "this is the default item"
+    IMGUI_API void          SetItemDefaultFocus();                                              // make last item the default focused item of a window.
+    IMGUI_API void          SetKeyboardFocusHere(int offset = 0);                               // focus keyboard on the next widget. Use positive 'offset' to access sub components of a multiple component widget. Use -1 to access previous widget.
+
+    // Item/Widgets Utilities and Query Functions
+    // - Most of the functions are referring to the previous Item that has been submitted.
+    // - See Demo Window under "Widgets->Querying Status" for an interactive visualization of most of those functions.
+    IMGUI_API bool          IsItemHovered(ImGuiHoveredFlags flags = 0);                         // is the last item hovered? (and usable, aka not blocked by a popup, etc.). See ImGuiHoveredFlags for more options.
+    IMGUI_API bool          IsItemActive();                                                     // is the last item active? (e.g. button being held, text field being edited. This will continuously return true while holding mouse button on an item. Items that don't interact will always return false)
+    IMGUI_API bool          IsItemFocused();                                                    // is the last item focused for keyboard/gamepad navigation?
+    IMGUI_API bool          IsItemClicked(ImGuiMouseButton mouse_button = 0);                   // is the last item hovered and mouse clicked on? (**)  == IsMouseClicked(mouse_button) && IsItemHovered()Important. (**) this it NOT equivalent to the behavior of e.g. Button(). Read comments in function definition.
+    IMGUI_API bool          IsItemVisible();                                                    // is the last item visible? (items may be out of sight because of clipping/scrolling)
+    IMGUI_API bool          IsItemEdited();                                                     // did the last item modify its underlying value this frame? or was pressed? This is generally the same as the "bool" return value of many widgets.
+    IMGUI_API bool          IsItemActivated();                                                  // was the last item just made active (item was previously inactive).
+    IMGUI_API bool          IsItemDeactivated();                                                // was the last item just made inactive (item was previously active). Useful for Undo/Redo patterns with widgets that requires continuous editing.
+    IMGUI_API bool          IsItemDeactivatedAfterEdit();                                       // was the last item just made inactive and made a value change when it was active? (e.g. Slider/Drag moved). Useful for Undo/Redo patterns with widgets that requires continuous editing. Note that you may get false positives (some widgets such as Combo()/ListBox()/Selectable() will return true even when clicking an already selected item).
+    IMGUI_API bool          IsItemToggledOpen();                                                // was the last item open state toggled? set by TreeNode().
+    IMGUI_API bool          IsAnyItemHovered();                                                 // is any item hovered?
+    IMGUI_API bool          IsAnyItemActive();                                                  // is any item active?
+    IMGUI_API bool          IsAnyItemFocused();                                                 // is any item focused?
+    IMGUI_API ImVec2        GetItemRectMin();                                                   // get upper-left bounding rectangle of the last item (screen space)
+    IMGUI_API ImVec2        GetItemRectMax();                                                   // get lower-right bounding rectangle of the last item (screen space)
+    IMGUI_API ImVec2        GetItemRectSize();                                                  // get size of last item
+    IMGUI_API void          SetItemAllowOverlap();                                              // allow last item to be overlapped by a subsequent item. sometimes useful with invisible buttons, selectables, etc. to catch unused area.
+
+    // Viewports
+    // - Currently represents the Platform Window created by the application which is hosting our Dear ImGui windows.
+    // - In 'docking' branch with multi-viewport enabled, we extend this concept to have multiple active viewports.
+    // - In the future we will extend this concept further to also represent Platform Monitor and support a "no main platform window" operation mode.
+    IMGUI_API ImGuiViewport* GetMainViewport();                                                 // return primary/default viewport. This can never be NULL.
+
+    // Background/Foreground Draw Lists
+    IMGUI_API ImDrawList*   GetBackgroundDrawList();                                            // this draw list will be the first rendered one. Useful to quickly draw shapes/text behind dear imgui contents.
+    IMGUI_API ImDrawList*   GetForegroundDrawList();                                            // this draw list will be the last rendered one. Useful to quickly draw shapes/text over dear imgui contents.
+
+    // Miscellaneous Utilities
+    IMGUI_API bool          IsRectVisible(const ImVec2& size);                                  // test if rectangle (of given size, starting from cursor position) is visible / not clipped.
+    IMGUI_API bool          IsRectVisible(const ImVec2& rect_min, const ImVec2& rect_max);      // test if rectangle (in screen space) is visible / not clipped. to perform coarse clipping on user's side.
+    IMGUI_API double        GetTime();                                                          // get global imgui time. incremented by io.DeltaTime every frame.
+    IMGUI_API int           GetFrameCount();                                                    // get global imgui frame count. incremented by 1 every frame.
+    IMGUI_API ImDrawListSharedData* GetDrawListSharedData();                                    // you may use this when creating your own ImDrawList instances.
+    IMGUI_API const char*   GetStyleColorName(ImGuiCol idx);                                    // get a string corresponding to the enum value (for display, saving, etc.).
+    IMGUI_API void          SetStateStorage(ImGuiStorage* storage);                             // replace current window storage with our own (if you want to manipulate it yourself, typically clear subsection of it)
+    IMGUI_API ImGuiStorage* GetStateStorage();
+    IMGUI_API bool          BeginChildFrame(ImGuiID id, const ImVec2& size, ImGuiWindowFlags flags = 0); // helper to create a child window / scrolling region that looks like a normal widget frame
+    IMGUI_API void          EndChildFrame();                                                    // always call EndChildFrame() regardless of BeginChildFrame() return values (which indicates a collapsed/clipped window)
+
+    // Text Utilities
+    IMGUI_API ImVec2        CalcTextSize(const char* text, const char* text_end = NULL, bool hide_text_after_double_hash = false, float wrap_width = -1.0f);
+
+    // Color Utilities
+    IMGUI_API ImVec4        ColorConvertU32ToFloat4(ImU32 in);
+    IMGUI_API ImU32         ColorConvertFloat4ToU32(const ImVec4& in);
+    IMGUI_API void          ColorConvertRGBtoHSV(float r, float g, float b, float& out_h, float& out_s, float& out_v);
+    IMGUI_API void          ColorConvertHSVtoRGB(float h, float s, float v, float& out_r, float& out_g, float& out_b);
+
+    // Inputs Utilities: Keyboard
+    // Without IMGUI_DISABLE_OBSOLETE_KEYIO: (legacy support)
+    //   - For 'ImGuiKey key' you can still use your legacy native/user indices according to how your backend/engine stored them in io.KeysDown[].
+    // With IMGUI_DISABLE_OBSOLETE_KEYIO: (this is the way forward)
+    //   - Any use of 'ImGuiKey' will assert when key < 512 will be passed, previously reserved as native/user keys indices
+    //   - GetKeyIndex() is pass-through and therefore deprecated (gone if IMGUI_DISABLE_OBSOLETE_KEYIO is defined)
+    IMGUI_API bool          IsKeyDown(ImGuiKey key);                                            // is key being held.
+    IMGUI_API bool          IsKeyPressed(ImGuiKey key, bool repeat = true);                     // was key pressed (went from !Down to Down)? if repeat=true, uses io.KeyRepeatDelay / KeyRepeatRate
+    IMGUI_API bool          IsKeyReleased(ImGuiKey key);                                        // was key released (went from Down to !Down)?
+    IMGUI_API int           GetKeyPressedAmount(ImGuiKey key, float repeat_delay, float rate);  // uses provided repeat rate/delay. return a count, most often 0 or 1 but might be >1 if RepeatRate is small enough that DeltaTime > RepeatRate
+    IMGUI_API const char*   GetKeyName(ImGuiKey key);                                           // [DEBUG] returns English name of the key. Those names a provided for debugging purpose and are not meant to be saved persistently not compared.
+    IMGUI_API void          SetNextFrameWantCaptureKeyboard(bool want_capture_keyboard);        // Override io.WantCaptureKeyboard flag next frame (said flag is left for your application to handle, typically when true it instructs your app to ignore inputs). e.g. force capture keyboard when your widget is being hovered. This is equivalent to setting "io.WantCaptureKeyboard = want_capture_keyboard"; after the next NewFrame() call.
+
+    // Inputs Utilities: Mouse
+    // - To refer to a mouse button, you may use named enums in your code e.g. ImGuiMouseButton_Left, ImGuiMouseButton_Right.
+    // - You can also use regular integer: it is forever guaranteed that 0=Left, 1=Right, 2=Middle.
+    // - Dragging operations are only reported after mouse has moved a certain distance away from the initial clicking position (see 'lock_threshold' and 'io.MouseDraggingThreshold')
+    IMGUI_API bool          IsMouseDown(ImGuiMouseButton button);                               // is mouse button held?
+    IMGUI_API bool          IsMouseClicked(ImGuiMouseButton button, bool repeat = false);       // did mouse button clicked? (went from !Down to Down). Same as GetMouseClickedCount() == 1.
+    IMGUI_API bool          IsMouseReleased(ImGuiMouseButton button);                           // did mouse button released? (went from Down to !Down)
+    IMGUI_API bool          IsMouseDoubleClicked(ImGuiMouseButton button);                      // did mouse button double-clicked? Same as GetMouseClickedCount() == 2. (note that a double-click will also report IsMouseClicked() == true)
+    IMGUI_API int           GetMouseClickedCount(ImGuiMouseButton button);                      // return the number of successive mouse-clicks at the time where a click happen (otherwise 0).
+    IMGUI_API bool          IsMouseHoveringRect(const ImVec2& r_min, const ImVec2& r_max, bool clip = true);// is mouse hovering given bounding rect (in screen space). clipped by current clipping settings, but disregarding of other consideration of focus/window ordering/popup-block.
+    IMGUI_API bool          IsMousePosValid(const ImVec2* mouse_pos = NULL);                    // by convention we use (-FLT_MAX,-FLT_MAX) to denote that there is no mouse available
+    IMGUI_API bool          IsAnyMouseDown();                                                   // [WILL OBSOLETE] is any mouse button held? This was designed for backends, but prefer having backend maintain a mask of held mouse buttons, because upcoming input queue system will make this invalid.
+    IMGUI_API ImVec2        GetMousePos();                                                      // shortcut to ImGui::GetIO().MousePos provided by user, to be consistent with other calls
+    IMGUI_API ImVec2        GetMousePosOnOpeningCurrentPopup();                                 // retrieve mouse position at the time of opening popup we have BeginPopup() into (helper to avoid user backing that value themselves)
+    IMGUI_API bool          IsMouseDragging(ImGuiMouseButton button, float lock_threshold = -1.0f);         // is mouse dragging? (if lock_threshold < -1.0f, uses io.MouseDraggingThreshold)
+    IMGUI_API ImVec2        GetMouseDragDelta(ImGuiMouseButton button = 0, float lock_threshold = -1.0f);   // return the delta from the initial clicking position while the mouse button is pressed or was just released. This is locked and return 0.0f until the mouse moves past a distance threshold at least once (if lock_threshold < -1.0f, uses io.MouseDraggingThreshold)
+    IMGUI_API void          ResetMouseDragDelta(ImGuiMouseButton button = 0);                   //
+    IMGUI_API ImGuiMouseCursor GetMouseCursor();                                                // get desired cursor type, reset in ImGui::NewFrame(), this is updated during the frame. valid before Render(). If you use software rendering by setting io.MouseDrawCursor ImGui will render those for you
+    IMGUI_API void          SetMouseCursor(ImGuiMouseCursor cursor_type);                       // set desired cursor type
+    IMGUI_API void          SetNextFrameWantCaptureMouse(bool want_capture_mouse);              // Override io.WantCaptureMouse flag next frame (said flag is left for your application to handle, typical when true it instucts your app to ignore inputs). This is equivalent to setting "io.WantCaptureMouse = want_capture_mouse;" after the next NewFrame() call.
+
+    // Clipboard Utilities
+    // - Also see the LogToClipboard() function to capture GUI into clipboard, or easily output text data to the clipboard.
+    IMGUI_API const char*   GetClipboardText();
+    IMGUI_API void          SetClipboardText(const char* text);
+
+    // Settings/.Ini Utilities
+    // - The disk functions are automatically called if io.IniFilename != NULL (default is "imgui.ini").
+    // - Set io.IniFilename to NULL to load/save manually. Read io.WantSaveIniSettings description about handling .ini saving manually.
+    // - Important: default value "imgui.ini" is relative to current working dir! Most apps will want to lock this to an absolute path (e.g. same path as executables).
+    IMGUI_API void          LoadIniSettingsFromDisk(const char* ini_filename);                  // call after CreateContext() and before the first call to NewFrame(). NewFrame() automatically calls LoadIniSettingsFromDisk(io.IniFilename).
+    IMGUI_API void          LoadIniSettingsFromMemory(const char* ini_data, size_t ini_size=0); // call after CreateContext() and before the first call to NewFrame() to provide .ini data from your own data source.
+    IMGUI_API void          SaveIniSettingsToDisk(const char* ini_filename);                    // this is automatically called (if io.IniFilename is not empty) a few seconds after any modification that should be reflected in the .ini file (and also by DestroyContext).
+    IMGUI_API const char*   SaveIniSettingsToMemory(size_t* out_ini_size = NULL);               // return a zero-terminated string with the .ini data which you can save by your own mean. call when io.WantSaveIniSettings is set, then save data by your own mean and clear io.WantSaveIniSettings.
+
+    // Debug Utilities
+    IMGUI_API void          DebugTextEncoding(const char* text);
+    IMGUI_API bool          DebugCheckVersionAndDataLayout(const char* version_str, size_t sz_io, size_t sz_style, size_t sz_vec2, size_t sz_vec4, size_t sz_drawvert, size_t sz_drawidx); // This is called by IMGUI_CHECKVERSION() macro.
+
+    // Memory Allocators
+    // - Those functions are not reliant on the current context.
+    // - DLL users: heaps and globals are not shared across DLL boundaries! You will need to call SetCurrentContext() + SetAllocatorFunctions()
+    //   for each static/DLL boundary you are calling from. Read "Context and Memory Allocators" section of imgui.cpp for more details.
+    IMGUI_API void          SetAllocatorFunctions(ImGuiMemAllocFunc alloc_func, ImGuiMemFreeFunc free_func, void* user_data = NULL);
+    IMGUI_API void          GetAllocatorFunctions(ImGuiMemAllocFunc* p_alloc_func, ImGuiMemFreeFunc* p_free_func, void** p_user_data);
+    IMGUI_API void*         MemAlloc(size_t size);
+    IMGUI_API void          MemFree(void* ptr);
+
+} // namespace ImGui
+
+//-----------------------------------------------------------------------------
+// [SECTION] Flags & Enumerations
+//-----------------------------------------------------------------------------
+
+// Flags for ImGui::Begin()
+enum ImGuiWindowFlags_
+{
+    ImGuiWindowFlags_None                   = 0,
+    ImGuiWindowFlags_NoTitleBar             = 1 << 0,   // Disable title-bar
+    ImGuiWindowFlags_NoResize               = 1 << 1,   // Disable user resizing with the lower-right grip
+    ImGuiWindowFlags_NoMove                 = 1 << 2,   // Disable user moving the window
+    ImGuiWindowFlags_NoScrollbar            = 1 << 3,   // Disable scrollbars (window can still scroll with mouse or programmatically)
+    ImGuiWindowFlags_NoScrollWithMouse      = 1 << 4,   // Disable user vertically scrolling with mouse wheel. On child window, mouse wheel will be forwarded to the parent unless NoScrollbar is also set.
+    ImGuiWindowFlags_NoCollapse             = 1 << 5,   // Disable user collapsing window by double-clicking on it. Also referred to as Window Menu Button (e.g. within a docking node).
+    ImGuiWindowFlags_AlwaysAutoResize       = 1 << 6,   // Resize every window to its content every frame
+    ImGuiWindowFlags_NoBackground           = 1 << 7,   // Disable drawing background color (WindowBg, etc.) and outside border. Similar as using SetNextWindowBgAlpha(0.0f).
+    ImGuiWindowFlags_NoSavedSettings        = 1 << 8,   // Never load/save settings in .ini file
+    ImGuiWindowFlags_NoMouseInputs          = 1 << 9,   // Disable catching mouse, hovering test with pass through.
+    ImGuiWindowFlags_MenuBar                = 1 << 10,  // Has a menu-bar
+    ImGuiWindowFlags_HorizontalScrollbar    = 1 << 11,  // Allow horizontal scrollbar to appear (off by default). You may use SetNextWindowContentSize(ImVec2(width,0.0f)); prior to calling Begin() to specify width. Read code in imgui_demo in the "Horizontal Scrolling" section.
+    ImGuiWindowFlags_NoFocusOnAppearing     = 1 << 12,  // Disable taking focus when transitioning from hidden to visible state
+    ImGuiWindowFlags_NoBringToFrontOnFocus  = 1 << 13,  // Disable bringing window to front when taking focus (e.g. clicking on it or programmatically giving it focus)
+    ImGuiWindowFlags_AlwaysVerticalScrollbar= 1 << 14,  // Always show vertical scrollbar (even if ContentSize.y < Size.y)
+    ImGuiWindowFlags_AlwaysHorizontalScrollbar=1<< 15,  // Always show horizontal scrollbar (even if ContentSize.x < Size.x)
+    ImGuiWindowFlags_AlwaysUseWindowPadding = 1 << 16,  // Ensure child windows without border uses style.WindowPadding (ignored by default for non-bordered child windows, because more convenient)
+    ImGuiWindowFlags_NoNavInputs            = 1 << 18,  // No gamepad/keyboard navigation within the window
+    ImGuiWindowFlags_NoNavFocus             = 1 << 19,  // No focusing toward this window with gamepad/keyboard navigation (e.g. skipped by CTRL+TAB)
+    ImGuiWindowFlags_UnsavedDocument        = 1 << 20,  // Display a dot next to the title. When used in a tab/docking context, tab is selected when clicking the X + closure is not assumed (will wait for user to stop submitting the tab). Otherwise closure is assumed when pressing the X, so if you keep submitting the tab may reappear at end of tab bar.
+    ImGuiWindowFlags_NoNav                  = ImGuiWindowFlags_NoNavInputs | ImGuiWindowFlags_NoNavFocus,
+    ImGuiWindowFlags_NoDecoration           = ImGuiWindowFlags_NoTitleBar | ImGuiWindowFlags_NoResize | ImGuiWindowFlags_NoScrollbar | ImGuiWindowFlags_NoCollapse,
+    ImGuiWindowFlags_NoInputs               = ImGuiWindowFlags_NoMouseInputs | ImGuiWindowFlags_NoNavInputs | ImGuiWindowFlags_NoNavFocus,
+
+    // [Internal]
+    ImGuiWindowFlags_NavFlattened           = 1 << 23,  // [BETA] On child window: allow gamepad/keyboard navigation to cross over parent border to this child or between sibling child windows.
+    ImGuiWindowFlags_ChildWindow            = 1 << 24,  // Don't use! For internal use by BeginChild()
+    ImGuiWindowFlags_Tooltip                = 1 << 25,  // Don't use! For internal use by BeginTooltip()
+    ImGuiWindowFlags_Popup                  = 1 << 26,  // Don't use! For internal use by BeginPopup()
+    ImGuiWindowFlags_Modal                  = 1 << 27,  // Don't use! For internal use by BeginPopupModal()
+    ImGuiWindowFlags_ChildMenu              = 1 << 28   // Don't use! For internal use by BeginMenu()
+    //ImGuiWindowFlags_ResizeFromAnySide    = 1 << 17,  // [Obsolete] --> Set io.ConfigWindowsResizeFromEdges=true and make sure mouse cursors are supported by backend (io.BackendFlags & ImGuiBackendFlags_HasMouseCursors)
+};
+
+// Flags for ImGui::InputText()
+enum ImGuiInputTextFlags_
+{
+    ImGuiInputTextFlags_None                = 0,
+    ImGuiInputTextFlags_CharsDecimal        = 1 << 0,   // Allow 0123456789.+-*/
+    ImGuiInputTextFlags_CharsHexadecimal    = 1 << 1,   // Allow 0123456789ABCDEFabcdef
+    ImGuiInputTextFlags_CharsUppercase      = 1 << 2,   // Turn a..z into A..Z
+    ImGuiInputTextFlags_CharsNoBlank        = 1 << 3,   // Filter out spaces, tabs
+    ImGuiInputTextFlags_AutoSelectAll       = 1 << 4,   // Select entire text when first taking mouse focus
+    ImGuiInputTextFlags_EnterReturnsTrue    = 1 << 5,   // Return 'true' when Enter is pressed (as opposed to every time the value was modified). Consider looking at the IsItemDeactivatedAfterEdit() function.
+    ImGuiInputTextFlags_CallbackCompletion  = 1 << 6,   // Callback on pressing TAB (for completion handling)
+    ImGuiInputTextFlags_CallbackHistory     = 1 << 7,   // Callback on pressing Up/Down arrows (for history handling)
+    ImGuiInputTextFlags_CallbackAlways      = 1 << 8,   // Callback on each iteration. User code may query cursor position, modify text buffer.
+    ImGuiInputTextFlags_CallbackCharFilter  = 1 << 9,   // Callback on character inputs to replace or discard them. Modify 'EventChar' to replace or discard, or return 1 in callback to discard.
+    ImGuiInputTextFlags_AllowTabInput       = 1 << 10,  // Pressing TAB input a '\t' character into the text field
+    ImGuiInputTextFlags_CtrlEnterForNewLine = 1 << 11,  // In multi-line mode, unfocus with Enter, add new line with Ctrl+Enter (default is opposite: unfocus with Ctrl+Enter, add line with Enter).
+    ImGuiInputTextFlags_NoHorizontalScroll  = 1 << 12,  // Disable following the cursor horizontally
+    ImGuiInputTextFlags_AlwaysOverwrite     = 1 << 13,  // Overwrite mode
+    ImGuiInputTextFlags_ReadOnly            = 1 << 14,  // Read-only mode
+    ImGuiInputTextFlags_Password            = 1 << 15,  // Password mode, display all characters as '*'
+    ImGuiInputTextFlags_NoUndoRedo          = 1 << 16,  // Disable undo/redo. Note that input text owns the text data while active, if you want to provide your own undo/redo stack you need e.g. to call ClearActiveID().
+    ImGuiInputTextFlags_CharsScientific     = 1 << 17,  // Allow 0123456789.+-*/eE (Scientific notation input)
+    ImGuiInputTextFlags_CallbackResize      = 1 << 18,  // Callback on buffer capacity changes request (beyond 'buf_size' parameter value), allowing the string to grow. Notify when the string wants to be resized (for string types which hold a cache of their Size). You will be provided a new BufSize in the callback and NEED to honor it. (see misc/cpp/imgui_stdlib.h for an example of using this)
+    ImGuiInputTextFlags_CallbackEdit        = 1 << 19   // Callback on any edit (note that InputText() already returns true on edit, the callback is useful mainly to manipulate the underlying buffer while focus is active)
+
+    // Obsolete names (will be removed soon)
+#ifndef IMGUI_DISABLE_OBSOLETE_FUNCTIONS
+    , ImGuiInputTextFlags_AlwaysInsertMode    = ImGuiInputTextFlags_AlwaysOverwrite   // [renamed in 1.82] name was not matching behavior
+#endif
+};
+
+// Flags for ImGui::TreeNodeEx(), ImGui::CollapsingHeader*()
+enum ImGuiTreeNodeFlags_
+{
+    ImGuiTreeNodeFlags_None                 = 0,
+    ImGuiTreeNodeFlags_Selected             = 1 << 0,   // Draw as selected
+    ImGuiTreeNodeFlags_Framed               = 1 << 1,   // Draw frame with background (e.g. for CollapsingHeader)
+    ImGuiTreeNodeFlags_AllowItemOverlap     = 1 << 2,   // Hit testing to allow subsequent widgets to overlap this one
+    ImGuiTreeNodeFlags_NoTreePushOnOpen     = 1 << 3,   // Don't do a TreePush() when open (e.g. for CollapsingHeader) = no extra indent nor pushing on ID stack
+    ImGuiTreeNodeFlags_NoAutoOpenOnLog      = 1 << 4,   // Don't automatically and temporarily open node when Logging is active (by default logging will automatically open tree nodes)
+    ImGuiTreeNodeFlags_DefaultOpen          = 1 << 5,   // Default node to be open
+    ImGuiTreeNodeFlags_OpenOnDoubleClick    = 1 << 6,   // Need double-click to open node
+    ImGuiTreeNodeFlags_OpenOnArrow          = 1 << 7,   // Only open when clicking on the arrow part. If ImGuiTreeNodeFlags_OpenOnDoubleClick is also set, single-click arrow or double-click all box to open.
+    ImGuiTreeNodeFlags_Leaf                 = 1 << 8,   // No collapsing, no arrow (use as a convenience for leaf nodes).
+    ImGuiTreeNodeFlags_Bullet               = 1 << 9,   // Display a bullet instead of arrow
+    ImGuiTreeNodeFlags_FramePadding         = 1 << 10,  // Use FramePadding (even for an unframed text node) to vertically align text baseline to regular widget height. Equivalent to calling AlignTextToFramePadding().
+    ImGuiTreeNodeFlags_SpanAvailWidth       = 1 << 11,  // Extend hit box to the right-most edge, even if not framed. This is not the default in order to allow adding other items on the same line. In the future we may refactor the hit system to be front-to-back, allowing natural overlaps and then this can become the default.
+    ImGuiTreeNodeFlags_SpanFullWidth        = 1 << 12,  // Extend hit box to the left-most and right-most edges (bypass the indented area).
+    ImGuiTreeNodeFlags_NavLeftJumpsBackHere = 1 << 13,  // (WIP) Nav: left direction may move to this TreeNode() from any of its child (items submitted between TreeNode and TreePop)
+    //ImGuiTreeNodeFlags_NoScrollOnOpen     = 1 << 14,  // FIXME: TODO: Disable automatic scroll on TreePop() if node got just open and contents is not visible
+    ImGuiTreeNodeFlags_CollapsingHeader     = ImGuiTreeNodeFlags_Framed | ImGuiTreeNodeFlags_NoTreePushOnOpen | ImGuiTreeNodeFlags_NoAutoOpenOnLog
+};
+
+// Flags for OpenPopup*(), BeginPopupContext*(), IsPopupOpen() functions.
+// - To be backward compatible with older API which took an 'int mouse_button = 1' argument, we need to treat
+//   small flags values as a mouse button index, so we encode the mouse button in the first few bits of the flags.
+//   It is therefore guaranteed to be legal to pass a mouse button index in ImGuiPopupFlags.
+// - For the same reason, we exceptionally default the ImGuiPopupFlags argument of BeginPopupContextXXX functions to 1 instead of 0.
+//   IMPORTANT: because the default parameter is 1 (==ImGuiPopupFlags_MouseButtonRight), if you rely on the default parameter
+//   and want to another another flag, you need to pass in the ImGuiPopupFlags_MouseButtonRight flag.
+// - Multiple buttons currently cannot be combined/or-ed in those functions (we could allow it later).
+enum ImGuiPopupFlags_
+{
+    ImGuiPopupFlags_None                    = 0,
+    ImGuiPopupFlags_MouseButtonLeft         = 0,        // For BeginPopupContext*(): open on Left Mouse release. Guaranteed to always be == 0 (same as ImGuiMouseButton_Left)
+    ImGuiPopupFlags_MouseButtonRight        = 1,        // For BeginPopupContext*(): open on Right Mouse release. Guaranteed to always be == 1 (same as ImGuiMouseButton_Right)
+    ImGuiPopupFlags_MouseButtonMiddle       = 2,        // For BeginPopupContext*(): open on Middle Mouse release. Guaranteed to always be == 2 (same as ImGuiMouseButton_Middle)
+    ImGuiPopupFlags_MouseButtonMask_        = 0x1F,
+    ImGuiPopupFlags_MouseButtonDefault_     = 1,
+    ImGuiPopupFlags_NoOpenOverExistingPopup = 1 << 5,   // For OpenPopup*(), BeginPopupContext*(): don't open if there's already a popup at the same level of the popup stack
+    ImGuiPopupFlags_NoOpenOverItems         = 1 << 6,   // For BeginPopupContextWindow(): don't return true when hovering items, only when hovering empty space
+    ImGuiPopupFlags_AnyPopupId              = 1 << 7,   // For IsPopupOpen(): ignore the ImGuiID parameter and test for any popup.
+    ImGuiPopupFlags_AnyPopupLevel           = 1 << 8,   // For IsPopupOpen(): search/test at any level of the popup stack (default test in the current level)
+    ImGuiPopupFlags_AnyPopup                = ImGuiPopupFlags_AnyPopupId | ImGuiPopupFlags_AnyPopupLevel
+};
+
+// Flags for ImGui::Selectable()
+enum ImGuiSelectableFlags_
+{
+    ImGuiSelectableFlags_None               = 0,
+    ImGuiSelectableFlags_DontClosePopups    = 1 << 0,   // Clicking this don't close parent popup window
+    ImGuiSelectableFlags_SpanAllColumns     = 1 << 1,   // Selectable frame can span all columns (text will still fit in current column)
+    ImGuiSelectableFlags_AllowDoubleClick   = 1 << 2,   // Generate press events on double clicks too
+    ImGuiSelectableFlags_Disabled           = 1 << 3,   // Cannot be selected, display grayed out text
+    ImGuiSelectableFlags_AllowItemOverlap   = 1 << 4    // (WIP) Hit testing to allow subsequent widgets to overlap this one
+};
+
+// Flags for ImGui::BeginCombo()
+enum ImGuiComboFlags_
+{
+    ImGuiComboFlags_None                    = 0,
+    ImGuiComboFlags_PopupAlignLeft          = 1 << 0,   // Align the popup toward the left by default
+    ImGuiComboFlags_HeightSmall             = 1 << 1,   // Max ~4 items visible. Tip: If you want your combo popup to be a specific size you can use SetNextWindowSizeConstraints() prior to calling BeginCombo()
+    ImGuiComboFlags_HeightRegular           = 1 << 2,   // Max ~8 items visible (default)
+    ImGuiComboFlags_HeightLarge             = 1 << 3,   // Max ~20 items visible
+    ImGuiComboFlags_HeightLargest           = 1 << 4,   // As many fitting items as possible
+    ImGuiComboFlags_NoArrowButton           = 1 << 5,   // Display on the preview box without the square arrow button
+    ImGuiComboFlags_NoPreview               = 1 << 6,   // Display only a square arrow button
+    ImGuiComboFlags_HeightMask_             = ImGuiComboFlags_HeightSmall | ImGuiComboFlags_HeightRegular | ImGuiComboFlags_HeightLarge | ImGuiComboFlags_HeightLargest
+};
+
+// Flags for ImGui::BeginTabBar()
+enum ImGuiTabBarFlags_
+{
+    ImGuiTabBarFlags_None                           = 0,
+    ImGuiTabBarFlags_Reorderable                    = 1 << 0,   // Allow manually dragging tabs to re-order them + New tabs are appended at the end of list
+    ImGuiTabBarFlags_AutoSelectNewTabs              = 1 << 1,   // Automatically select new tabs when they appear
+    ImGuiTabBarFlags_TabListPopupButton             = 1 << 2,   // Disable buttons to open the tab list popup
+    ImGuiTabBarFlags_NoCloseWithMiddleMouseButton   = 1 << 3,   // Disable behavior of closing tabs (that are submitted with p_open != NULL) with middle mouse button. You can still repro this behavior on user's side with if (IsItemHovered() && IsMouseClicked(2)) *p_open = false.
+    ImGuiTabBarFlags_NoTabListScrollingButtons      = 1 << 4,   // Disable scrolling buttons (apply when fitting policy is ImGuiTabBarFlags_FittingPolicyScroll)
+    ImGuiTabBarFlags_NoTooltip                      = 1 << 5,   // Disable tooltips when hovering a tab
+    ImGuiTabBarFlags_FittingPolicyResizeDown        = 1 << 6,   // Resize tabs when they don't fit
+    ImGuiTabBarFlags_FittingPolicyScroll            = 1 << 7,   // Add scroll buttons when tabs don't fit
+    ImGuiTabBarFlags_FittingPolicyMask_             = ImGuiTabBarFlags_FittingPolicyResizeDown | ImGuiTabBarFlags_FittingPolicyScroll,
+    ImGuiTabBarFlags_FittingPolicyDefault_          = ImGuiTabBarFlags_FittingPolicyResizeDown
+};
+
+// Flags for ImGui::BeginTabItem()
+enum ImGuiTabItemFlags_
+{
+    ImGuiTabItemFlags_None                          = 0,
+    ImGuiTabItemFlags_UnsavedDocument               = 1 << 0,   // Display a dot next to the title + tab is selected when clicking the X + closure is not assumed (will wait for user to stop submitting the tab). Otherwise closure is assumed when pressing the X, so if you keep submitting the tab may reappear at end of tab bar.
+    ImGuiTabItemFlags_SetSelected                   = 1 << 1,   // Trigger flag to programmatically make the tab selected when calling BeginTabItem()
+    ImGuiTabItemFlags_NoCloseWithMiddleMouseButton  = 1 << 2,   // Disable behavior of closing tabs (that are submitted with p_open != NULL) with middle mouse button. You can still repro this behavior on user's side with if (IsItemHovered() && IsMouseClicked(2)) *p_open = false.
+    ImGuiTabItemFlags_NoPushId                      = 1 << 3,   // Don't call PushID(tab->ID)/PopID() on BeginTabItem()/EndTabItem()
+    ImGuiTabItemFlags_NoTooltip                     = 1 << 4,   // Disable tooltip for the given tab
+    ImGuiTabItemFlags_NoReorder                     = 1 << 5,   // Disable reordering this tab or having another tab cross over this tab
+    ImGuiTabItemFlags_Leading                       = 1 << 6,   // Enforce the tab position to the left of the tab bar (after the tab list popup button)
+    ImGuiTabItemFlags_Trailing                      = 1 << 7    // Enforce the tab position to the right of the tab bar (before the scrolling buttons)
+};
+
+// Flags for ImGui::BeginTable()
+// - Important! Sizing policies have complex and subtle side effects, much more so than you would expect.
+//   Read comments/demos carefully + experiment with live demos to get acquainted with them.
+// - The DEFAULT sizing policies are:
+//    - Default to ImGuiTableFlags_SizingFixedFit    if ScrollX is on, or if host window has ImGuiWindowFlags_AlwaysAutoResize.
+//    - Default to ImGuiTableFlags_SizingStretchSame if ScrollX is off.
+// - When ScrollX is off:
+//    - Table defaults to ImGuiTableFlags_SizingStretchSame -> all Columns defaults to ImGuiTableColumnFlags_WidthStretch with same weight.
+//    - Columns sizing policy allowed: Stretch (default), Fixed/Auto.
+//    - Fixed Columns (if any) will generally obtain their requested width (unless the table cannot fit them all).
+//    - Stretch Columns will share the remaining width according to their respective weight.
+//    - Mixed Fixed/Stretch columns is possible but has various side-effects on resizing behaviors.
+//      The typical use of mixing sizing policies is: any number of LEADING Fixed columns, followed by one or two TRAILING Stretch columns.
+//      (this is because the visible order of columns have subtle but necessary effects on how they react to manual resizing).
+// - When ScrollX is on:
+//    - Table defaults to ImGuiTableFlags_SizingFixedFit -> all Columns defaults to ImGuiTableColumnFlags_WidthFixed
+//    - Columns sizing policy allowed: Fixed/Auto mostly.
+//    - Fixed Columns can be enlarged as needed. Table will show an horizontal scrollbar if needed.
+//    - When using auto-resizing (non-resizable) fixed columns, querying the content width to use item right-alignment e.g. SetNextItemWidth(-FLT_MIN) doesn't make sense, would create a feedback loop.
+//    - Using Stretch columns OFTEN DOES NOT MAKE SENSE if ScrollX is on, UNLESS you have specified a value for 'inner_width' in BeginTable().
+//      If you specify a value for 'inner_width' then effectively the scrolling space is known and Stretch or mixed Fixed/Stretch columns become meaningful again.
+// - Read on documentation at the top of imgui_tables.cpp for details.
+enum ImGuiTableFlags_
+{
+    // Features
+    ImGuiTableFlags_None                       = 0,
+    ImGuiTableFlags_Resizable                  = 1 << 0,   // Enable resizing columns.
+    ImGuiTableFlags_Reorderable                = 1 << 1,   // Enable reordering columns in header row (need calling TableSetupColumn() + TableHeadersRow() to display headers)
+    ImGuiTableFlags_Hideable                   = 1 << 2,   // Enable hiding/disabling columns in context menu.
+    ImGuiTableFlags_Sortable                   = 1 << 3,   // Enable sorting. Call TableGetSortSpecs() to obtain sort specs. Also see ImGuiTableFlags_SortMulti and ImGuiTableFlags_SortTristate.
+    ImGuiTableFlags_NoSavedSettings            = 1 << 4,   // Disable persisting columns order, width and sort settings in the .ini file.
+    ImGuiTableFlags_ContextMenuInBody          = 1 << 5,   // Right-click on columns body/contents will display table context menu. By default it is available in TableHeadersRow().
+    // Decorations
+    ImGuiTableFlags_RowBg                      = 1 << 6,   // Set each RowBg color with ImGuiCol_TableRowBg or ImGuiCol_TableRowBgAlt (equivalent of calling TableSetBgColor with ImGuiTableBgFlags_RowBg0 on each row manually)
+    ImGuiTableFlags_BordersInnerH              = 1 << 7,   // Draw horizontal borders between rows.
+    ImGuiTableFlags_BordersOuterH              = 1 << 8,   // Draw horizontal borders at the top and bottom.
+    ImGuiTableFlags_BordersInnerV              = 1 << 9,   // Draw vertical borders between columns.
+    ImGuiTableFlags_BordersOuterV              = 1 << 10,  // Draw vertical borders on the left and right sides.
+    ImGuiTableFlags_BordersH                   = ImGuiTableFlags_BordersInnerH | ImGuiTableFlags_BordersOuterH, // Draw horizontal borders.
+    ImGuiTableFlags_BordersV                   = ImGuiTableFlags_BordersInnerV | ImGuiTableFlags_BordersOuterV, // Draw vertical borders.
+    ImGuiTableFlags_BordersInner               = ImGuiTableFlags_BordersInnerV | ImGuiTableFlags_BordersInnerH, // Draw inner borders.
+    ImGuiTableFlags_BordersOuter               = ImGuiTableFlags_BordersOuterV | ImGuiTableFlags_BordersOuterH, // Draw outer borders.
+    ImGuiTableFlags_Borders                    = ImGuiTableFlags_BordersInner | ImGuiTableFlags_BordersOuter,   // Draw all borders.
+    ImGuiTableFlags_NoBordersInBody            = 1 << 11,  // [ALPHA] Disable vertical borders in columns Body (borders will always appears in Headers). -> May move to style
+    ImGuiTableFlags_NoBordersInBodyUntilResize = 1 << 12,  // [ALPHA] Disable vertical borders in columns Body until hovered for resize (borders will always appears in Headers). -> May move to style
+    // Sizing Policy (read above for defaults)
+    ImGuiTableFlags_SizingFixedFit             = 1 << 13,  // Columns default to _WidthFixed or _WidthAuto (if resizable or not resizable), matching contents width.
+    ImGuiTableFlags_SizingFixedSame            = 2 << 13,  // Columns default to _WidthFixed or _WidthAuto (if resizable or not resizable), matching the maximum contents width of all columns. Implicitly enable ImGuiTableFlags_NoKeepColumnsVisible.
+    ImGuiTableFlags_SizingStretchProp          = 3 << 13,  // Columns default to _WidthStretch with default weights proportional to each columns contents widths.
+    ImGuiTableFlags_SizingStretchSame          = 4 << 13,  // Columns default to _WidthStretch with default weights all equal, unless overridden by TableSetupColumn().
+    // Sizing Extra Options
+    ImGuiTableFlags_NoHostExtendX              = 1 << 16,  // Make outer width auto-fit to columns, overriding outer_size.x value. Only available when ScrollX/ScrollY are disabled and Stretch columns are not used.
+    ImGuiTableFlags_NoHostExtendY              = 1 << 17,  // Make outer height stop exactly at outer_size.y (prevent auto-extending table past the limit). Only available when ScrollX/ScrollY are disabled. Data below the limit will be clipped and not visible.
+    ImGuiTableFlags_NoKeepColumnsVisible       = 1 << 18,  // Disable keeping column always minimally visible when ScrollX is off and table gets too small. Not recommended if columns are resizable.
+    ImGuiTableFlags_PreciseWidths              = 1 << 19,  // Disable distributing remainder width to stretched columns (width allocation on a 100-wide table with 3 columns: Without this flag: 33,33,34. With this flag: 33,33,33). With larger number of columns, resizing will appear to be less smooth.
+    // Clipping
+    ImGuiTableFlags_NoClip                     = 1 << 20,  // Disable clipping rectangle for every individual columns (reduce draw command count, items will be able to overflow into other columns). Generally incompatible with TableSetupScrollFreeze().
+    // Padding
+    ImGuiTableFlags_PadOuterX                  = 1 << 21,  // Default if BordersOuterV is on. Enable outer-most padding. Generally desirable if you have headers.
+    ImGuiTableFlags_NoPadOuterX                = 1 << 22,  // Default if BordersOuterV is off. Disable outer-most padding.
+    ImGuiTableFlags_NoPadInnerX                = 1 << 23,  // Disable inner padding between columns (double inner padding if BordersOuterV is on, single inner padding if BordersOuterV is off).
+    // Scrolling
+    ImGuiTableFlags_ScrollX                    = 1 << 24,  // Enable horizontal scrolling. Require 'outer_size' parameter of BeginTable() to specify the container size. Changes default sizing policy. Because this create a child window, ScrollY is currently generally recommended when using ScrollX.
+    ImGuiTableFlags_ScrollY                    = 1 << 25,  // Enable vertical scrolling. Require 'outer_size' parameter of BeginTable() to specify the container size.
+    // Sorting
+    ImGuiTableFlags_SortMulti                  = 1 << 26,  // Hold shift when clicking headers to sort on multiple column. TableGetSortSpecs() may return specs where (SpecsCount > 1).
+    ImGuiTableFlags_SortTristate               = 1 << 27,  // Allow no sorting, disable default sorting. TableGetSortSpecs() may return specs where (SpecsCount == 0).
+
+    // [Internal] Combinations and masks
+    ImGuiTableFlags_SizingMask_                = ImGuiTableFlags_SizingFixedFit | ImGuiTableFlags_SizingFixedSame | ImGuiTableFlags_SizingStretchProp | ImGuiTableFlags_SizingStretchSame
+
+    // Obsolete names (will be removed soon)
+#ifndef IMGUI_DISABLE_OBSOLETE_FUNCTIONS
+    //, ImGuiTableFlags_ColumnsWidthFixed = ImGuiTableFlags_SizingFixedFit, ImGuiTableFlags_ColumnsWidthStretch = ImGuiTableFlags_SizingStretchSame   // WIP Tables 2020/12
+    //, ImGuiTableFlags_SizingPolicyFixed = ImGuiTableFlags_SizingFixedFit, ImGuiTableFlags_SizingPolicyStretch = ImGuiTableFlags_SizingStretchSame   // WIP Tables 2021/01
+#endif
+};
+
+// Flags for ImGui::TableSetupColumn()
+enum ImGuiTableColumnFlags_
+{
+    // Input configuration flags
+    ImGuiTableColumnFlags_None                  = 0,
+    ImGuiTableColumnFlags_Disabled              = 1 << 0,   // Overriding/master disable flag: hide column, won't show in context menu (unlike calling TableSetColumnEnabled() which manipulates the user accessible state)
+    ImGuiTableColumnFlags_DefaultHide           = 1 << 1,   // Default as a hidden/disabled column.
+    ImGuiTableColumnFlags_DefaultSort           = 1 << 2,   // Default as a sorting column.
+    ImGuiTableColumnFlags_WidthStretch          = 1 << 3,   // Column will stretch. Preferable with horizontal scrolling disabled (default if table sizing policy is _SizingStretchSame or _SizingStretchProp).
+    ImGuiTableColumnFlags_WidthFixed            = 1 << 4,   // Column will not stretch. Preferable with horizontal scrolling enabled (default if table sizing policy is _SizingFixedFit and table is resizable).
+    ImGuiTableColumnFlags_NoResize              = 1 << 5,   // Disable manual resizing.
+    ImGuiTableColumnFlags_NoReorder             = 1 << 6,   // Disable manual reordering this column, this will also prevent other columns from crossing over this column.
+    ImGuiTableColumnFlags_NoHide                = 1 << 7,   // Disable ability to hide/disable this column.
+    ImGuiTableColumnFlags_NoClip                = 1 << 8,   // Disable clipping for this column (all NoClip columns will render in a same draw command).
+    ImGuiTableColumnFlags_NoSort                = 1 << 9,   // Disable ability to sort on this field (even if ImGuiTableFlags_Sortable is set on the table).
+    ImGuiTableColumnFlags_NoSortAscending       = 1 << 10,  // Disable ability to sort in the ascending direction.
+    ImGuiTableColumnFlags_NoSortDescending      = 1 << 11,  // Disable ability to sort in the descending direction.
+    ImGuiTableColumnFlags_NoHeaderLabel         = 1 << 12,  // TableHeadersRow() will not submit label for this column. Convenient for some small columns. Name will still appear in context menu.
+    ImGuiTableColumnFlags_NoHeaderWidth         = 1 << 13,  // Disable header text width contribution to automatic column width.
+    ImGuiTableColumnFlags_PreferSortAscending   = 1 << 14,  // Make the initial sort direction Ascending when first sorting on this column (default).
+    ImGuiTableColumnFlags_PreferSortDescending  = 1 << 15,  // Make the initial sort direction Descending when first sorting on this column.
+    ImGuiTableColumnFlags_IndentEnable          = 1 << 16,  // Use current Indent value when entering cell (default for column 0).
+    ImGuiTableColumnFlags_IndentDisable         = 1 << 17,  // Ignore current Indent value when entering cell (default for columns > 0). Indentation changes _within_ the cell will still be honored.
+
+    // Output status flags, read-only via TableGetColumnFlags()
+    ImGuiTableColumnFlags_IsEnabled             = 1 << 24,  // Status: is enabled == not hidden by user/api (referred to as "Hide" in _DefaultHide and _NoHide) flags.
+    ImGuiTableColumnFlags_IsVisible             = 1 << 25,  // Status: is visible == is enabled AND not clipped by scrolling.
+    ImGuiTableColumnFlags_IsSorted              = 1 << 26,  // Status: is currently part of the sort specs
+    ImGuiTableColumnFlags_IsHovered             = 1 << 27,  // Status: is hovered by mouse
+
+    // [Internal] Combinations and masks
+    ImGuiTableColumnFlags_WidthMask_            = ImGuiTableColumnFlags_WidthStretch | ImGuiTableColumnFlags_WidthFixed,
+    ImGuiTableColumnFlags_IndentMask_           = ImGuiTableColumnFlags_IndentEnable | ImGuiTableColumnFlags_IndentDisable,
+    ImGuiTableColumnFlags_StatusMask_           = ImGuiTableColumnFlags_IsEnabled | ImGuiTableColumnFlags_IsVisible | ImGuiTableColumnFlags_IsSorted | ImGuiTableColumnFlags_IsHovered,
+    ImGuiTableColumnFlags_NoDirectResize_       = 1 << 30   // [Internal] Disable user resizing this column directly (it may however we resized indirectly from its left edge)
+
+    // Obsolete names (will be removed soon)
+#ifndef IMGUI_DISABLE_OBSOLETE_FUNCTIONS
+    //ImGuiTableColumnFlags_WidthAuto           = ImGuiTableColumnFlags_WidthFixed | ImGuiTableColumnFlags_NoResize, // Column will not stretch and keep resizing based on submitted contents.
+#endif
+};
+
+// Flags for ImGui::TableNextRow()
+enum ImGuiTableRowFlags_
+{
+    ImGuiTableRowFlags_None                         = 0,
+    ImGuiTableRowFlags_Headers                      = 1 << 0    // Identify header row (set default background color + width of its contents accounted differently for auto column width)
+};
+
+// Enum for ImGui::TableSetBgColor()
+// Background colors are rendering in 3 layers:
+//  - Layer 0: draw with RowBg0 color if set, otherwise draw with ColumnBg0 if set.
+//  - Layer 1: draw with RowBg1 color if set, otherwise draw with ColumnBg1 if set.
+//  - Layer 2: draw with CellBg color if set.
+// The purpose of the two row/columns layers is to let you decide if a background color changes should override or blend with the existing color.
+// When using ImGuiTableFlags_RowBg on the table, each row has the RowBg0 color automatically set for odd/even rows.
+// If you set the color of RowBg0 target, your color will override the existing RowBg0 color.
+// If you set the color of RowBg1 or ColumnBg1 target, your color will blend over the RowBg0 color.
+enum ImGuiTableBgTarget_
+{
+    ImGuiTableBgTarget_None                         = 0,
+    ImGuiTableBgTarget_RowBg0                       = 1,        // Set row background color 0 (generally used for background, automatically set when ImGuiTableFlags_RowBg is used)
+    ImGuiTableBgTarget_RowBg1                       = 2,        // Set row background color 1 (generally used for selection marking)
+    ImGuiTableBgTarget_CellBg                       = 3         // Set cell background color (top-most color)
+};
+
+// Flags for ImGui::IsWindowFocused()
+enum ImGuiFocusedFlags_
+{
+    ImGuiFocusedFlags_None                          = 0,
+    ImGuiFocusedFlags_ChildWindows                  = 1 << 0,   // Return true if any children of the window is focused
+    ImGuiFocusedFlags_RootWindow                    = 1 << 1,   // Test from root window (top most parent of the current hierarchy)
+    ImGuiFocusedFlags_AnyWindow                     = 1 << 2,   // Return true if any window is focused. Important: If you are trying to tell how to dispatch your low-level inputs, do NOT use this. Use 'io.WantCaptureMouse' instead! Please read the FAQ!
+    ImGuiFocusedFlags_NoPopupHierarchy              = 1 << 3,   // Do not consider popup hierarchy (do not treat popup emitter as parent of popup) (when used with _ChildWindows or _RootWindow)
+    //ImGuiFocusedFlags_DockHierarchy               = 1 << 4,   // Consider docking hierarchy (treat dockspace host as parent of docked window) (when used with _ChildWindows or _RootWindow)
+    ImGuiFocusedFlags_RootAndChildWindows           = ImGuiFocusedFlags_RootWindow | ImGuiFocusedFlags_ChildWindows
+};
+
+// Flags for ImGui::IsItemHovered(), ImGui::IsWindowHovered()
+// Note: if you are trying to check whether your mouse should be dispatched to Dear ImGui or to your app, you should use 'io.WantCaptureMouse' instead! Please read the FAQ!
+// Note: windows with the ImGuiWindowFlags_NoInputs flag are ignored by IsWindowHovered() calls.
+enum ImGuiHoveredFlags_
+{
+    ImGuiHoveredFlags_None                          = 0,        // Return true if directly over the item/window, not obstructed by another window, not obstructed by an active popup or modal blocking inputs under them.
+    ImGuiHoveredFlags_ChildWindows                  = 1 << 0,   // IsWindowHovered() only: Return true if any children of the window is hovered
+    ImGuiHoveredFlags_RootWindow                    = 1 << 1,   // IsWindowHovered() only: Test from root window (top most parent of the current hierarchy)
+    ImGuiHoveredFlags_AnyWindow                     = 1 << 2,   // IsWindowHovered() only: Return true if any window is hovered
+    ImGuiHoveredFlags_NoPopupHierarchy              = 1 << 3,   // IsWindowHovered() only: Do not consider popup hierarchy (do not treat popup emitter as parent of popup) (when used with _ChildWindows or _RootWindow)
+    //ImGuiHoveredFlags_DockHierarchy               = 1 << 4,   // IsWindowHovered() only: Consider docking hierarchy (treat dockspace host as parent of docked window) (when used with _ChildWindows or _RootWindow)
+    ImGuiHoveredFlags_AllowWhenBlockedByPopup       = 1 << 5,   // Return true even if a popup window is normally blocking access to this item/window
+    //ImGuiHoveredFlags_AllowWhenBlockedByModal     = 1 << 6,   // Return true even if a modal popup window is normally blocking access to this item/window. FIXME-TODO: Unavailable yet.
+    ImGuiHoveredFlags_AllowWhenBlockedByActiveItem  = 1 << 7,   // Return true even if an active item is blocking access to this item/window. Useful for Drag and Drop patterns.
+    ImGuiHoveredFlags_AllowWhenOverlapped           = 1 << 8,   // IsItemHovered() only: Return true even if the position is obstructed or overlapped by another window
+    ImGuiHoveredFlags_AllowWhenDisabled             = 1 << 9,   // IsItemHovered() only: Return true even if the item is disabled
+    ImGuiHoveredFlags_NoNavOverride                 = 1 << 10,  // Disable using gamepad/keyboard navigation state when active, always query mouse.
+    ImGuiHoveredFlags_RectOnly                      = ImGuiHoveredFlags_AllowWhenBlockedByPopup | ImGuiHoveredFlags_AllowWhenBlockedByActiveItem | ImGuiHoveredFlags_AllowWhenOverlapped,
+    ImGuiHoveredFlags_RootAndChildWindows           = ImGuiHoveredFlags_RootWindow | ImGuiHoveredFlags_ChildWindows
+};
+
+// Flags for ImGui::BeginDragDropSource(), ImGui::AcceptDragDropPayload()
+enum ImGuiDragDropFlags_
+{
+    ImGuiDragDropFlags_None                         = 0,
+    // BeginDragDropSource() flags
+    ImGuiDragDropFlags_SourceNoPreviewTooltip       = 1 << 0,   // By default, a successful call to BeginDragDropSource opens a tooltip so you can display a preview or description of the source contents. This flag disable this behavior.
+    ImGuiDragDropFlags_SourceNoDisableHover         = 1 << 1,   // By default, when dragging we clear data so that IsItemHovered() will return false, to avoid subsequent user code submitting tooltips. This flag disable this behavior so you can still call IsItemHovered() on the source item.
+    ImGuiDragDropFlags_SourceNoHoldToOpenOthers     = 1 << 2,   // Disable the behavior that allows to open tree nodes and collapsing header by holding over them while dragging a source item.
+    ImGuiDragDropFlags_SourceAllowNullID            = 1 << 3,   // Allow items such as Text(), Image() that have no unique identifier to be used as drag source, by manufacturing a temporary identifier based on their window-relative position. This is extremely unusual within the dear imgui ecosystem and so we made it explicit.
+    ImGuiDragDropFlags_SourceExtern                 = 1 << 4,   // External source (from outside of dear imgui), won't attempt to read current item/window info. Will always return true. Only one Extern source can be active simultaneously.
+    ImGuiDragDropFlags_SourceAutoExpirePayload      = 1 << 5,   // Automatically expire the payload if the source cease to be submitted (otherwise payloads are persisting while being dragged)
+    // AcceptDragDropPayload() flags
+    ImGuiDragDropFlags_AcceptBeforeDelivery         = 1 << 10,  // AcceptDragDropPayload() will returns true even before the mouse button is released. You can then call IsDelivery() to test if the payload needs to be delivered.
+    ImGuiDragDropFlags_AcceptNoDrawDefaultRect      = 1 << 11,  // Do not draw the default highlight rectangle when hovering over target.
+    ImGuiDragDropFlags_AcceptNoPreviewTooltip       = 1 << 12,  // Request hiding the BeginDragDropSource tooltip from the BeginDragDropTarget site.
+    ImGuiDragDropFlags_AcceptPeekOnly               = ImGuiDragDropFlags_AcceptBeforeDelivery | ImGuiDragDropFlags_AcceptNoDrawDefaultRect  // For peeking ahead and inspecting the payload before delivery.
+};
+
+// Standard Drag and Drop payload types. You can define you own payload types using short strings. Types starting with '_' are defined by Dear ImGui.
+#define IMGUI_PAYLOAD_TYPE_COLOR_3F     "_COL3F"    // float[3]: Standard type for colors, without alpha. User code may use this type.
+#define IMGUI_PAYLOAD_TYPE_COLOR_4F     "_COL4F"    // float[4]: Standard type for colors. User code may use this type.
+
+// A primary data type
+enum ImGuiDataType_
+{
+    ImGuiDataType_S8,       // signed char / char (with sensible compilers)
+    ImGuiDataType_U8,       // unsigned char
+    ImGuiDataType_S16,      // short
+    ImGuiDataType_U16,      // unsigned short
+    ImGuiDataType_S32,      // int
+    ImGuiDataType_U32,      // unsigned int
+    ImGuiDataType_S64,      // long long / __int64
+    ImGuiDataType_U64,      // unsigned long long / unsigned __int64
+    ImGuiDataType_Float,    // float
+    ImGuiDataType_Double,   // double
+    ImGuiDataType_COUNT
+};
+
+// A cardinal direction
+enum ImGuiDir_
+{
+    ImGuiDir_None    = -1,
+    ImGuiDir_Left    = 0,
+    ImGuiDir_Right   = 1,
+    ImGuiDir_Up      = 2,
+    ImGuiDir_Down    = 3,
+    ImGuiDir_COUNT
+};
+
+// A sorting direction
+enum ImGuiSortDirection_
+{
+    ImGuiSortDirection_None         = 0,
+    ImGuiSortDirection_Ascending    = 1,    // Ascending = 0->9, A->Z etc.
+    ImGuiSortDirection_Descending   = 2     // Descending = 9->0, Z->A etc.
+};
+
+// Keys value 0 to 511 are left unused as legacy native/opaque key values (< 1.87)
+// Keys value >= 512 are named keys (>= 1.87)
+enum ImGuiKey_
+{
+    // Keyboard
+    ImGuiKey_None = 0,
+    ImGuiKey_Tab = 512,             // == ImGuiKey_NamedKey_BEGIN
+    ImGuiKey_LeftArrow,
+    ImGuiKey_RightArrow,
+    ImGuiKey_UpArrow,
+    ImGuiKey_DownArrow,
+    ImGuiKey_PageUp,
+    ImGuiKey_PageDown,
+    ImGuiKey_Home,
+    ImGuiKey_End,
+    ImGuiKey_Insert,
+    ImGuiKey_Delete,
+    ImGuiKey_Backspace,
+    ImGuiKey_Space,
+    ImGuiKey_Enter,
+    ImGuiKey_Escape,
+    ImGuiKey_LeftCtrl, ImGuiKey_LeftShift, ImGuiKey_LeftAlt, ImGuiKey_LeftSuper,
+    ImGuiKey_RightCtrl, ImGuiKey_RightShift, ImGuiKey_RightAlt, ImGuiKey_RightSuper,
+    ImGuiKey_Menu,
+    ImGuiKey_0, ImGuiKey_1, ImGuiKey_2, ImGuiKey_3, ImGuiKey_4, ImGuiKey_5, ImGuiKey_6, ImGuiKey_7, ImGuiKey_8, ImGuiKey_9,
+    ImGuiKey_A, ImGuiKey_B, ImGuiKey_C, ImGuiKey_D, ImGuiKey_E, ImGuiKey_F, ImGuiKey_G, ImGuiKey_H, ImGuiKey_I, ImGuiKey_J,
+    ImGuiKey_K, ImGuiKey_L, ImGuiKey_M, ImGuiKey_N, ImGuiKey_O, ImGuiKey_P, ImGuiKey_Q, ImGuiKey_R, ImGuiKey_S, ImGuiKey_T,
+    ImGuiKey_U, ImGuiKey_V, ImGuiKey_W, ImGuiKey_X, ImGuiKey_Y, ImGuiKey_Z,
+    ImGuiKey_F1, ImGuiKey_F2, ImGuiKey_F3, ImGuiKey_F4, ImGuiKey_F5, ImGuiKey_F6,
+    ImGuiKey_F7, ImGuiKey_F8, ImGuiKey_F9, ImGuiKey_F10, ImGuiKey_F11, ImGuiKey_F12,
+    ImGuiKey_Apostrophe,        // '
+    ImGuiKey_Comma,             // ,
+    ImGuiKey_Minus,             // -
+    ImGuiKey_Period,            // .
+    ImGuiKey_Slash,             // /
+    ImGuiKey_Semicolon,         // ;
+    ImGuiKey_Equal,             // =
+    ImGuiKey_LeftBracket,       // [
+    ImGuiKey_Backslash,         // \ (this text inhibit multiline comment caused by backslash)
+    ImGuiKey_RightBracket,      // ]
+    ImGuiKey_GraveAccent,       // `
+    ImGuiKey_CapsLock,
+    ImGuiKey_ScrollLock,
+    ImGuiKey_NumLock,
+    ImGuiKey_PrintScreen,
+    ImGuiKey_Pause,
+    ImGuiKey_Keypad0, ImGuiKey_Keypad1, ImGuiKey_Keypad2, ImGuiKey_Keypad3, ImGuiKey_Keypad4,
+    ImGuiKey_Keypad5, ImGuiKey_Keypad6, ImGuiKey_Keypad7, ImGuiKey_Keypad8, ImGuiKey_Keypad9,
+    ImGuiKey_KeypadDecimal,
+    ImGuiKey_KeypadDivide,
+    ImGuiKey_KeypadMultiply,
+    ImGuiKey_KeypadSubtract,
+    ImGuiKey_KeypadAdd,
+    ImGuiKey_KeypadEnter,
+    ImGuiKey_KeypadEqual,
+
+    // Gamepad (some of those are analog values, 0.0f to 1.0f)                              // NAVIGATION action
+    ImGuiKey_GamepadStart,          // Menu (Xbox)          + (Switch)   Start/Options (PS) // --
+    ImGuiKey_GamepadBack,           // View (Xbox)          - (Switch)   Share (PS)         // --
+    ImGuiKey_GamepadFaceUp,         // Y (Xbox)             X (Switch)   Triangle (PS)      // -> ImGuiNavInput_Input
+    ImGuiKey_GamepadFaceDown,       // A (Xbox)             B (Switch)   Cross (PS)         // -> ImGuiNavInput_Activate
+    ImGuiKey_GamepadFaceLeft,       // X (Xbox)             Y (Switch)   Square (PS)        // -> ImGuiNavInput_Menu
+    ImGuiKey_GamepadFaceRight,      // B (Xbox)             A (Switch)   Circle (PS)        // -> ImGuiNavInput_Cancel
+    ImGuiKey_GamepadDpadUp,         // D-pad Up                                             // -> ImGuiNavInput_DpadUp
+    ImGuiKey_GamepadDpadDown,       // D-pad Down                                           // -> ImGuiNavInput_DpadDown
+    ImGuiKey_GamepadDpadLeft,       // D-pad Left                                           // -> ImGuiNavInput_DpadLeft
+    ImGuiKey_GamepadDpadRight,      // D-pad Right                                          // -> ImGuiNavInput_DpadRight
+    ImGuiKey_GamepadL1,             // L Bumper (Xbox)      L (Switch)   L1 (PS)            // -> ImGuiNavInput_FocusPrev + ImGuiNavInput_TweakSlow
+    ImGuiKey_GamepadR1,             // R Bumper (Xbox)      R (Switch)   R1 (PS)            // -> ImGuiNavInput_FocusNext + ImGuiNavInput_TweakFast
+    ImGuiKey_GamepadL2,             // L Trigger (Xbox)     ZL (Switch)  L2 (PS) [Analog]
+    ImGuiKey_GamepadR2,             // R Trigger (Xbox)     ZR (Switch)  R2 (PS) [Analog]
+    ImGuiKey_GamepadL3,             // L Thumbstick (Xbox)  L3 (Switch)  L3 (PS)
+    ImGuiKey_GamepadR3,             // R Thumbstick (Xbox)  R3 (Switch)  R3 (PS)
+    ImGuiKey_GamepadLStickUp,       // [Analog]                                             // -> ImGuiNavInput_LStickUp
+    ImGuiKey_GamepadLStickDown,     // [Analog]                                             // -> ImGuiNavInput_LStickDown
+    ImGuiKey_GamepadLStickLeft,     // [Analog]                                             // -> ImGuiNavInput_LStickLeft
+    ImGuiKey_GamepadLStickRight,    // [Analog]                                             // -> ImGuiNavInput_LStickRight
+    ImGuiKey_GamepadRStickUp,       // [Analog]
+    ImGuiKey_GamepadRStickDown,     // [Analog]
+    ImGuiKey_GamepadRStickLeft,     // [Analog]
+    ImGuiKey_GamepadRStickRight,    // [Analog]
+
+    // Keyboard Modifiers (explicitly submitted by backend via AddKeyEvent() calls)
+    // - This is mirroring the data also written to io.KeyCtrl, io.KeyShift, io.KeyAlt, io.KeySuper, in a format allowing
+    //   them to be accessed via standard key API, allowing calls such as IsKeyPressed(), IsKeyReleased(), querying duration etc.
+    // - Code polling every keys (e.g. an interface to detect a key press for input mapping) might want to ignore those
+    //   and prefer using the real keys (e.g. ImGuiKey_LeftCtrl, ImGuiKey_RightCtrl instead of ImGuiKey_ModCtrl).
+    // - In theory the value of keyboard modifiers should be roughly equivalent to a logical or of the equivalent left/right keys.
+    //   In practice: it's complicated; mods are often provided from different sources. Keyboard layout, IME, sticky keys and
+    //   backends tend to interfere and break that equivalence. The safer decision is to relay that ambiguity down to the end-user...
+    ImGuiKey_ModCtrl, ImGuiKey_ModShift, ImGuiKey_ModAlt, ImGuiKey_ModSuper,
+
+    // End of list
+    ImGuiKey_COUNT,                 // No valid ImGuiKey is ever greater than this value
+
+    // [Internal] Prior to 1.87 we required user to fill io.KeysDown[512] using their own native index + a io.KeyMap[] array.
+    // We are ditching this method but keeping a legacy path for user code doing e.g. IsKeyPressed(MY_NATIVE_KEY_CODE)
+    ImGuiKey_NamedKey_BEGIN         = 512,
+    ImGuiKey_NamedKey_END           = ImGuiKey_COUNT,
+    ImGuiKey_NamedKey_COUNT         = ImGuiKey_NamedKey_END - ImGuiKey_NamedKey_BEGIN,
+#ifdef IMGUI_DISABLE_OBSOLETE_KEYIO
+    ImGuiKey_KeysData_SIZE          = ImGuiKey_NamedKey_COUNT,          // Size of KeysData[]: only hold named keys
+    ImGuiKey_KeysData_OFFSET        = ImGuiKey_NamedKey_BEGIN           // First key stored in io.KeysData[0]. Accesses to io.KeysData[] must use (key - ImGuiKey_KeysData_OFFSET).
+#else
+    ImGuiKey_KeysData_SIZE          = ImGuiKey_COUNT,                   // Size of KeysData[]: hold legacy 0..512 keycodes + named keys
+    ImGuiKey_KeysData_OFFSET        = 0                                 // First key stored in io.KeysData[0]. Accesses to io.KeysData[] must use (key - ImGuiKey_KeysData_OFFSET).
+#endif
+
+#ifndef IMGUI_DISABLE_OBSOLETE_FUNCTIONS
+    , ImGuiKey_KeyPadEnter = ImGuiKey_KeypadEnter   // Renamed in 1.87
+#endif
+};
+
+// Helper "flags" version of key-mods to store and compare multiple key-mods easily. Sometimes used for storage (e.g. io.KeyMods) but otherwise not much used in public API.
+enum ImGuiModFlags_
+{
+    ImGuiModFlags_None              = 0,
+    ImGuiModFlags_Ctrl              = 1 << 0,
+    ImGuiModFlags_Shift             = 1 << 1,
+    ImGuiModFlags_Alt               = 1 << 2,   // Menu
+    ImGuiModFlags_Super             = 1 << 3    // Cmd/Super/Windows key
+};
+
+// Gamepad/Keyboard navigation
+// Since >= 1.87 backends you generally don't need to care about this enum since io.NavInputs[] is setup automatically. This might become private/internal some day.
+// Keyboard: Set io.ConfigFlags |= ImGuiConfigFlags_NavEnableKeyboard to enable. NewFrame() will automatically fill io.NavInputs[] based on your io.AddKeyEvent() calls.
+// Gamepad:  Set io.ConfigFlags |= ImGuiConfigFlags_NavEnableGamepad to enable. Backend: set ImGuiBackendFlags_HasGamepad and fill the io.NavInputs[] fields before calling NewFrame(). Note that io.NavInputs[] is cleared by EndFrame().
+// Read instructions in imgui.cpp for more details. Download PNG/PSD at http://dearimgui.org/controls_sheets.
+enum ImGuiNavInput_
+{
+    // Gamepad Mapping
+    ImGuiNavInput_Activate,      // Activate / Open / Toggle / Tweak value       // e.g. Cross  (PS4), A (Xbox), A (Switch), Space (Keyboard)
+    ImGuiNavInput_Cancel,        // Cancel / Close / Exit                        // e.g. Circle (PS4), B (Xbox), B (Switch), Escape (Keyboard)
+    ImGuiNavInput_Input,         // Text input / On-Screen keyboard              // e.g. Triang.(PS4), Y (Xbox), X (Switch), Return (Keyboard)
+    ImGuiNavInput_Menu,          // Tap: Toggle menu / Hold: Focus, Move, Resize // e.g. Square (PS4), X (Xbox), Y (Switch), Alt (Keyboard)
+    ImGuiNavInput_DpadLeft,      // Move / Tweak / Resize window (w/ PadMenu)    // e.g. D-pad Left/Right/Up/Down (Gamepads), Arrow keys (Keyboard)
+    ImGuiNavInput_DpadRight,     //
+    ImGuiNavInput_DpadUp,        //
+    ImGuiNavInput_DpadDown,      //
+    ImGuiNavInput_LStickLeft,    // Scroll / Move window (w/ PadMenu)            // e.g. Left Analog Stick Left/Right/Up/Down
+    ImGuiNavInput_LStickRight,   //
+    ImGuiNavInput_LStickUp,      //
+    ImGuiNavInput_LStickDown,    //
+    ImGuiNavInput_FocusPrev,     // Focus Next window (w/ PadMenu)               // e.g. L1 or L2 (PS4), LB or LT (Xbox), L or ZL (Switch)
+    ImGuiNavInput_FocusNext,     // Focus Prev window (w/ PadMenu)               // e.g. R1 or R2 (PS4), RB or RT (Xbox), R or ZL (Switch)
+    ImGuiNavInput_TweakSlow,     // Slower tweaks                                // e.g. L1 or L2 (PS4), LB or LT (Xbox), L or ZL (Switch)
+    ImGuiNavInput_TweakFast,     // Faster tweaks                                // e.g. R1 or R2 (PS4), RB or RT (Xbox), R or ZL (Switch)
+
+    // [Internal] Don't use directly! This is used internally to differentiate keyboard from gamepad inputs for behaviors that require to differentiate them.
+    // Keyboard behavior that have no corresponding gamepad mapping (e.g. CTRL+TAB) will be directly reading from keyboard keys instead of io.NavInputs[].
+    ImGuiNavInput_KeyLeft_,      // Move left                                    // = Arrow keys
+    ImGuiNavInput_KeyRight_,     // Move right
+    ImGuiNavInput_KeyUp_,        // Move up
+    ImGuiNavInput_KeyDown_,      // Move down
+    ImGuiNavInput_COUNT
+};
+
+// Configuration flags stored in io.ConfigFlags. Set by user/application.
+enum ImGuiConfigFlags_
+{
+    ImGuiConfigFlags_None                   = 0,
+    ImGuiConfigFlags_NavEnableKeyboard      = 1 << 0,   // Master keyboard navigation enable flag. NewFrame() will automatically fill io.NavInputs[] based on io.AddKeyEvent() calls
+    ImGuiConfigFlags_NavEnableGamepad       = 1 << 1,   // Master gamepad navigation enable flag. This is mostly to instruct your imgui backend to fill io.NavInputs[]. Backend also needs to set ImGuiBackendFlags_HasGamepad.
+    ImGuiConfigFlags_NavEnableSetMousePos   = 1 << 2,   // Instruct navigation to move the mouse cursor. May be useful on TV/console systems where moving a virtual mouse is awkward. Will update io.MousePos and set io.WantSetMousePos=true. If enabled you MUST honor io.WantSetMousePos requests in your backend, otherwise ImGui will react as if the mouse is jumping around back and forth.
+    ImGuiConfigFlags_NavNoCaptureKeyboard   = 1 << 3,   // Instruct navigation to not set the io.WantCaptureKeyboard flag when io.NavActive is set.
+    ImGuiConfigFlags_NoMouse                = 1 << 4,   // Instruct imgui to clear mouse position/buttons in NewFrame(). This allows ignoring the mouse information set by the backend.
+    ImGuiConfigFlags_NoMouseCursorChange    = 1 << 5,   // Instruct backend to not alter mouse cursor shape and visibility. Use if the backend cursor changes are interfering with yours and you don't want to use SetMouseCursor() to change mouse cursor. You may want to honor requests from imgui by reading GetMouseCursor() yourself instead.
+
+    // User storage (to allow your backend/engine to communicate to code that may be shared between multiple projects. Those flags are NOT used by core Dear ImGui)
+    ImGuiConfigFlags_IsSRGB                 = 1 << 20,  // Application is SRGB-aware.
+    ImGuiConfigFlags_IsTouchScreen          = 1 << 21   // Application is using a touch screen instead of a mouse.
+};
+
+// Backend capabilities flags stored in io.BackendFlags. Set by imgui_impl_xxx or custom backend.
+enum ImGuiBackendFlags_
+{
+    ImGuiBackendFlags_None                  = 0,
+    ImGuiBackendFlags_HasGamepad            = 1 << 0,   // Backend Platform supports gamepad and currently has one connected.
+    ImGuiBackendFlags_HasMouseCursors       = 1 << 1,   // Backend Platform supports honoring GetMouseCursor() value to change the OS cursor shape.
+    ImGuiBackendFlags_HasSetMousePos        = 1 << 2,   // Backend Platform supports io.WantSetMousePos requests to reposition the OS mouse position (only used if ImGuiConfigFlags_NavEnableSetMousePos is set).
+    ImGuiBackendFlags_RendererHasVtxOffset  = 1 << 3    // Backend Renderer supports ImDrawCmd::VtxOffset. This enables output of large meshes (64K+ vertices) while still using 16-bit indices.
+};
+
+// Enumeration for PushStyleColor() / PopStyleColor()
+enum ImGuiCol_
+{
+    ImGuiCol_Text,
+    ImGuiCol_TextDisabled,
+    ImGuiCol_WindowBg,              // Background of normal windows
+    ImGuiCol_ChildBg,               // Background of child windows
+    ImGuiCol_PopupBg,               // Background of popups, menus, tooltips windows
+    ImGuiCol_Border,
+    ImGuiCol_BorderShadow,
+    ImGuiCol_FrameBg,               // Background of checkbox, radio button, plot, slider, text input
+    ImGuiCol_FrameBgHovered,
+    ImGuiCol_FrameBgActive,
+    ImGuiCol_TitleBg,
+    ImGuiCol_TitleBgActive,
+    ImGuiCol_TitleBgCollapsed,
+    ImGuiCol_MenuBarBg,
+    ImGuiCol_ScrollbarBg,
+    ImGuiCol_ScrollbarGrab,
+    ImGuiCol_ScrollbarGrabHovered,
+    ImGuiCol_ScrollbarGrabActive,
+    ImGuiCol_CheckMark,
+    ImGuiCol_SliderGrab,
+    ImGuiCol_SliderGrabActive,
+    ImGuiCol_Button,
+    ImGuiCol_ButtonHovered,
+    ImGuiCol_ButtonActive,
+    ImGuiCol_Header,                // Header* colors are used for CollapsingHeader, TreeNode, Selectable, MenuItem
+    ImGuiCol_HeaderHovered,
+    ImGuiCol_HeaderActive,
+    ImGuiCol_Separator,
+    ImGuiCol_SeparatorHovered,
+    ImGuiCol_SeparatorActive,
+    ImGuiCol_ResizeGrip,            // Resize grip in lower-right and lower-left corners of windows.
+    ImGuiCol_ResizeGripHovered,
+    ImGuiCol_ResizeGripActive,
+    ImGuiCol_Tab,                   // TabItem in a TabBar
+    ImGuiCol_TabHovered,
+    ImGuiCol_TabActive,
+    ImGuiCol_TabUnfocused,
+    ImGuiCol_TabUnfocusedActive,
+    ImGuiCol_PlotLines,
+    ImGuiCol_PlotLinesHovered,
+    ImGuiCol_PlotHistogram,
+    ImGuiCol_PlotHistogramHovered,
+    ImGuiCol_TableHeaderBg,         // Table header background
+    ImGuiCol_TableBorderStrong,     // Table outer and header borders (prefer using Alpha=1.0 here)
+    ImGuiCol_TableBorderLight,      // Table inner borders (prefer using Alpha=1.0 here)
+    ImGuiCol_TableRowBg,            // Table row background (even rows)
+    ImGuiCol_TableRowBgAlt,         // Table row background (odd rows)
+    ImGuiCol_TextSelectedBg,
+    ImGuiCol_DragDropTarget,        // Rectangle highlighting a drop target
+    ImGuiCol_NavHighlight,          // Gamepad/keyboard: current highlighted item
+    ImGuiCol_NavWindowingHighlight, // Highlight window when using CTRL+TAB
+    ImGuiCol_NavWindowingDimBg,     // Darken/colorize entire screen behind the CTRL+TAB window list, when active
+    ImGuiCol_ModalWindowDimBg,      // Darken/colorize entire screen behind a modal window, when one is active
+    ImGuiCol_COUNT
+};
+
+// Enumeration for PushStyleVar() / PopStyleVar() to temporarily modify the ImGuiStyle structure.
+// - The enum only refers to fields of ImGuiStyle which makes sense to be pushed/popped inside UI code.
+//   During initialization or between frames, feel free to just poke into ImGuiStyle directly.
+// - Tip: Use your programming IDE navigation facilities on the names in the _second column_ below to find the actual members and their description.
+//   In Visual Studio IDE: CTRL+comma ("Edit.GoToAll") can follow symbols in comments, whereas CTRL+F12 ("Edit.GoToImplementation") cannot.
+//   With Visual Assist installed: ALT+G ("VAssistX.GoToImplementation") can also follow symbols in comments.
+// - When changing this enum, you need to update the associated internal table GStyleVarInfo[] accordingly. This is where we link enum values to members offset/type.
+enum ImGuiStyleVar_
+{
+    // Enum name --------------------- // Member in ImGuiStyle structure (see ImGuiStyle for descriptions)
+    ImGuiStyleVar_Alpha,               // float     Alpha
+    ImGuiStyleVar_DisabledAlpha,       // float     DisabledAlpha
+    ImGuiStyleVar_WindowPadding,       // ImVec2    WindowPadding
+    ImGuiStyleVar_WindowRounding,      // float     WindowRounding
+    ImGuiStyleVar_WindowBorderSize,    // float     WindowBorderSize
+    ImGuiStyleVar_WindowMinSize,       // ImVec2    WindowMinSize
+    ImGuiStyleVar_WindowTitleAlign,    // ImVec2    WindowTitleAlign
+    ImGuiStyleVar_ChildRounding,       // float     ChildRounding
+    ImGuiStyleVar_ChildBorderSize,     // float     ChildBorderSize
+    ImGuiStyleVar_PopupRounding,       // float     PopupRounding
+    ImGuiStyleVar_PopupBorderSize,     // float     PopupBorderSize
+    ImGuiStyleVar_FramePadding,        // ImVec2    FramePadding
+    ImGuiStyleVar_FrameRounding,       // float     FrameRounding
+    ImGuiStyleVar_FrameBorderSize,     // float     FrameBorderSize
+    ImGuiStyleVar_ItemSpacing,         // ImVec2    ItemSpacing
+    ImGuiStyleVar_ItemInnerSpacing,    // ImVec2    ItemInnerSpacing
+    ImGuiStyleVar_IndentSpacing,       // float     IndentSpacing
+    ImGuiStyleVar_CellPadding,         // ImVec2    CellPadding
+    ImGuiStyleVar_ScrollbarSize,       // float     ScrollbarSize
+    ImGuiStyleVar_ScrollbarRounding,   // float     ScrollbarRounding
+    ImGuiStyleVar_GrabMinSize,         // float     GrabMinSize
+    ImGuiStyleVar_GrabRounding,        // float     GrabRounding
+    ImGuiStyleVar_TabRounding,         // float     TabRounding
+    ImGuiStyleVar_ButtonTextAlign,     // ImVec2    ButtonTextAlign
+    ImGuiStyleVar_SelectableTextAlign, // ImVec2    SelectableTextAlign
+    ImGuiStyleVar_COUNT
+};
+
+// Flags for InvisibleButton() [extended in imgui_internal.h]
+enum ImGuiButtonFlags_
+{
+    ImGuiButtonFlags_None                   = 0,
+    ImGuiButtonFlags_MouseButtonLeft        = 1 << 0,   // React on left mouse button (default)
+    ImGuiButtonFlags_MouseButtonRight       = 1 << 1,   // React on right mouse button
+    ImGuiButtonFlags_MouseButtonMiddle      = 1 << 2,   // React on center mouse button
+
+    // [Internal]
+    ImGuiButtonFlags_MouseButtonMask_       = ImGuiButtonFlags_MouseButtonLeft | ImGuiButtonFlags_MouseButtonRight | ImGuiButtonFlags_MouseButtonMiddle,
+    ImGuiButtonFlags_MouseButtonDefault_    = ImGuiButtonFlags_MouseButtonLeft
+};
+
+// Flags for ColorEdit3() / ColorEdit4() / ColorPicker3() / ColorPicker4() / ColorButton()
+enum ImGuiColorEditFlags_
+{
+    ImGuiColorEditFlags_None            = 0,
+    ImGuiColorEditFlags_NoAlpha         = 1 << 1,   //              // ColorEdit, ColorPicker, ColorButton: ignore Alpha component (will only read 3 components from the input pointer).
+    ImGuiColorEditFlags_NoPicker        = 1 << 2,   //              // ColorEdit: disable picker when clicking on color square.
+    ImGuiColorEditFlags_NoOptions       = 1 << 3,   //              // ColorEdit: disable toggling options menu when right-clicking on inputs/small preview.
+    ImGuiColorEditFlags_NoSmallPreview  = 1 << 4,   //              // ColorEdit, ColorPicker: disable color square preview next to the inputs. (e.g. to show only the inputs)
+    ImGuiColorEditFlags_NoInputs        = 1 << 5,   //              // ColorEdit, ColorPicker: disable inputs sliders/text widgets (e.g. to show only the small preview color square).
+    ImGuiColorEditFlags_NoTooltip       = 1 << 6,   //              // ColorEdit, ColorPicker, ColorButton: disable tooltip when hovering the preview.
+    ImGuiColorEditFlags_NoLabel         = 1 << 7,   //              // ColorEdit, ColorPicker: disable display of inline text label (the label is still forwarded to the tooltip and picker).
+    ImGuiColorEditFlags_NoSidePreview   = 1 << 8,   //              // ColorPicker: disable bigger color preview on right side of the picker, use small color square preview instead.
+    ImGuiColorEditFlags_NoDragDrop      = 1 << 9,   //              // ColorEdit: disable drag and drop target. ColorButton: disable drag and drop source.
+    ImGuiColorEditFlags_NoBorder        = 1 << 10,  //              // ColorButton: disable border (which is enforced by default)
+
+    // User Options (right-click on widget to change some of them).
+    ImGuiColorEditFlags_AlphaBar        = 1 << 16,  //              // ColorEdit, ColorPicker: show vertical alpha bar/gradient in picker.
+    ImGuiColorEditFlags_AlphaPreview    = 1 << 17,  //              // ColorEdit, ColorPicker, ColorButton: display preview as a transparent color over a checkerboard, instead of opaque.
+    ImGuiColorEditFlags_AlphaPreviewHalf= 1 << 18,  //              // ColorEdit, ColorPicker, ColorButton: display half opaque / half checkerboard, instead of opaque.
+    ImGuiColorEditFlags_HDR             = 1 << 19,  //              // (WIP) ColorEdit: Currently only disable 0.0f..1.0f limits in RGBA edition (note: you probably want to use ImGuiColorEditFlags_Float flag as well).
+    ImGuiColorEditFlags_DisplayRGB      = 1 << 20,  // [Display]    // ColorEdit: override _display_ type among RGB/HSV/Hex. ColorPicker: select any combination using one or more of RGB/HSV/Hex.
+    ImGuiColorEditFlags_DisplayHSV      = 1 << 21,  // [Display]    // "
+    ImGuiColorEditFlags_DisplayHex      = 1 << 22,  // [Display]    // "
+    ImGuiColorEditFlags_Uint8           = 1 << 23,  // [DataType]   // ColorEdit, ColorPicker, ColorButton: _display_ values formatted as 0..255.
+    ImGuiColorEditFlags_Float           = 1 << 24,  // [DataType]   // ColorEdit, ColorPicker, ColorButton: _display_ values formatted as 0.0f..1.0f floats instead of 0..255 integers. No round-trip of value via integers.
+    ImGuiColorEditFlags_PickerHueBar    = 1 << 25,  // [Picker]     // ColorPicker: bar for Hue, rectangle for Sat/Value.
+    ImGuiColorEditFlags_PickerHueWheel  = 1 << 26,  // [Picker]     // ColorPicker: wheel for Hue, triangle for Sat/Value.
+    ImGuiColorEditFlags_InputRGB        = 1 << 27,  // [Input]      // ColorEdit, ColorPicker: input and output data in RGB format.
+    ImGuiColorEditFlags_InputHSV        = 1 << 28,  // [Input]      // ColorEdit, ColorPicker: input and output data in HSV format.
+
+    // Defaults Options. You can set application defaults using SetColorEditOptions(). The intent is that you probably don't want to
+    // override them in most of your calls. Let the user choose via the option menu and/or call SetColorEditOptions() once during startup.
+    ImGuiColorEditFlags_DefaultOptions_ = ImGuiColorEditFlags_Uint8 | ImGuiColorEditFlags_DisplayRGB | ImGuiColorEditFlags_InputRGB | ImGuiColorEditFlags_PickerHueBar,
+
+    // [Internal] Masks
+    ImGuiColorEditFlags_DisplayMask_    = ImGuiColorEditFlags_DisplayRGB | ImGuiColorEditFlags_DisplayHSV | ImGuiColorEditFlags_DisplayHex,
+    ImGuiColorEditFlags_DataTypeMask_   = ImGuiColorEditFlags_Uint8 | ImGuiColorEditFlags_Float,
+    ImGuiColorEditFlags_PickerMask_     = ImGuiColorEditFlags_PickerHueWheel | ImGuiColorEditFlags_PickerHueBar,
+    ImGuiColorEditFlags_InputMask_      = ImGuiColorEditFlags_InputRGB | ImGuiColorEditFlags_InputHSV
+
+    // Obsolete names (will be removed)
+    // ImGuiColorEditFlags_RGB = ImGuiColorEditFlags_DisplayRGB, ImGuiColorEditFlags_HSV = ImGuiColorEditFlags_DisplayHSV, ImGuiColorEditFlags_HEX = ImGuiColorEditFlags_DisplayHex  // [renamed in 1.69]
+};
+
+// Flags for DragFloat(), DragInt(), SliderFloat(), SliderInt() etc.
+// We use the same sets of flags for DragXXX() and SliderXXX() functions as the features are the same and it makes it easier to swap them.
+enum ImGuiSliderFlags_
+{
+    ImGuiSliderFlags_None                   = 0,
+    ImGuiSliderFlags_AlwaysClamp            = 1 << 4,       // Clamp value to min/max bounds when input manually with CTRL+Click. By default CTRL+Click allows going out of bounds.
+    ImGuiSliderFlags_Logarithmic            = 1 << 5,       // Make the widget logarithmic (linear otherwise). Consider using ImGuiSliderFlags_NoRoundToFormat with this if using a format-string with small amount of digits.
+    ImGuiSliderFlags_NoRoundToFormat        = 1 << 6,       // Disable rounding underlying value to match precision of the display format string (e.g. %.3f values are rounded to those 3 digits)
+    ImGuiSliderFlags_NoInput                = 1 << 7,       // Disable CTRL+Click or Enter key allowing to input text directly into the widget
+    ImGuiSliderFlags_InvalidMask_           = 0x7000000F    // [Internal] We treat using those bits as being potentially a 'float power' argument from the previous API that has got miscast to this enum, and will trigger an assert if needed.
+
+    // Obsolete names (will be removed)
+#ifndef IMGUI_DISABLE_OBSOLETE_FUNCTIONS
+    , ImGuiSliderFlags_ClampOnInput = ImGuiSliderFlags_AlwaysClamp // [renamed in 1.79]
+#endif
+};
+
+// Identify a mouse button.
+// Those values are guaranteed to be stable and we frequently use 0/1 directly. Named enums provided for convenience.
+enum ImGuiMouseButton_
+{
+    ImGuiMouseButton_Left = 0,
+    ImGuiMouseButton_Right = 1,
+    ImGuiMouseButton_Middle = 2,
+    ImGuiMouseButton_COUNT = 5
+};
+
+// Enumeration for GetMouseCursor()
+// User code may request backend to display given cursor by calling SetMouseCursor(), which is why we have some cursors that are marked unused here
+enum ImGuiMouseCursor_
+{
+    ImGuiMouseCursor_None = -1,
+    ImGuiMouseCursor_Arrow = 0,
+    ImGuiMouseCursor_TextInput,         // When hovering over InputText, etc.
+    ImGuiMouseCursor_ResizeAll,         // (Unused by Dear ImGui functions)
+    ImGuiMouseCursor_ResizeNS,          // When hovering over an horizontal border
+    ImGuiMouseCursor_ResizeEW,          // When hovering over a vertical border or a column
+    ImGuiMouseCursor_ResizeNESW,        // When hovering over the bottom-left corner of a window
+    ImGuiMouseCursor_ResizeNWSE,        // When hovering over the bottom-right corner of a window
+    ImGuiMouseCursor_Hand,              // (Unused by Dear ImGui functions. Use for e.g. hyperlinks)
+    ImGuiMouseCursor_NotAllowed,        // When hovering something with disallowed interaction. Usually a crossed circle.
+    ImGuiMouseCursor_COUNT
+};
+
+// Enumeration for ImGui::SetWindow***(), SetNextWindow***(), SetNextItem***() functions
+// Represent a condition.
+// Important: Treat as a regular enum! Do NOT combine multiple values using binary operators! All the functions above treat 0 as a shortcut to ImGuiCond_Always.
+enum ImGuiCond_
+{
+    ImGuiCond_None          = 0,        // No condition (always set the variable), same as _Always
+    ImGuiCond_Always        = 1 << 0,   // No condition (always set the variable)
+    ImGuiCond_Once          = 1 << 1,   // Set the variable once per runtime session (only the first call will succeed)
+    ImGuiCond_FirstUseEver  = 1 << 2,   // Set the variable if the object/window has no persistently saved data (no entry in .ini file)
+    ImGuiCond_Appearing     = 1 << 3    // Set the variable if the object/window is appearing after being hidden/inactive (or the first time)
+};
+
+//-----------------------------------------------------------------------------
+// [SECTION] Helpers: Memory allocations macros, ImVector<>
+//-----------------------------------------------------------------------------
+
+//-----------------------------------------------------------------------------
+// IM_MALLOC(), IM_FREE(), IM_NEW(), IM_PLACEMENT_NEW(), IM_DELETE()
+// We call C++ constructor on own allocated memory via the placement "new(ptr) Type()" syntax.
+// Defining a custom placement new() with a custom parameter allows us to bypass including <new> which on some platforms complains when user has disabled exceptions.
+//-----------------------------------------------------------------------------
+
+struct ImNewWrapper {};
+inline void* operator new(size_t, ImNewWrapper, void* ptr) { return ptr; }
+inline void  operator delete(void*, ImNewWrapper, void*)   {} // This is only required so we can use the symmetrical new()
+#define IM_ALLOC(_SIZE)                     ImGui::MemAlloc(_SIZE)
+#define IM_FREE(_PTR)                       ImGui::MemFree(_PTR)
+#define IM_PLACEMENT_NEW(_PTR)              new(ImNewWrapper(), _PTR)
+#define IM_NEW(_TYPE)                       new(ImNewWrapper(), ImGui::MemAlloc(sizeof(_TYPE))) _TYPE
+template<typename T> void IM_DELETE(T* p)   { if (p) { p->~T(); ImGui::MemFree(p); } }
+
+//-----------------------------------------------------------------------------
+// ImVector<>
+// Lightweight std::vector<>-like class to avoid dragging dependencies (also, some implementations of STL with debug enabled are absurdly slow, we bypass it so our code runs fast in debug).
+//-----------------------------------------------------------------------------
+// - You generally do NOT need to care or use this ever. But we need to make it available in imgui.h because some of our public structures are relying on it.
+// - We use std-like naming convention here, which is a little unusual for this codebase.
+// - Important: clear() frees memory, resize(0) keep the allocated buffer. We use resize(0) a lot to intentionally recycle allocated buffers across frames and amortize our costs.
+// - Important: our implementation does NOT call C++ constructors/destructors, we treat everything as raw data! This is intentional but be extra mindful of that,
+//   Do NOT use this class as a std::vector replacement in your own code! Many of the structures used by dear imgui can be safely initialized by a zero-memset.
+//-----------------------------------------------------------------------------
+
+IM_MSVC_RUNTIME_CHECKS_OFF
+template<typename T>
+struct ImVector
+{
+    int                 Size;
+    int                 Capacity;
+    T*                  Data;
+
+    // Provide standard typedefs but we don't use them ourselves.
+    typedef T                   value_type;
+    typedef value_type*         iterator;
+    typedef const value_type*   const_iterator;
+
+    // Constructors, destructor
+    inline ImVector()                                       { Size = Capacity = 0; Data = NULL; }
+    inline ImVector(const ImVector<T>& src)                 { Size = Capacity = 0; Data = NULL; operator=(src); }
+    inline ImVector<T>& operator=(const ImVector<T>& src)   { clear(); resize(src.Size); memcpy(Data, src.Data, (size_t)Size * sizeof(T)); return *this; }
+    inline ~ImVector()                                      { if (Data) IM_FREE(Data); } // Important: does not destruct anything
+
+    inline void         clear()                             { if (Data) { Size = Capacity = 0; IM_FREE(Data); Data = NULL; } }  // Important: does not destruct anything
+    inline void         clear_delete()                      { for (int n = 0; n < Size; n++) IM_DELETE(Data[n]); clear(); }     // Important: never called automatically! always explicit.
+    inline void         clear_destruct()                    { for (int n = 0; n < Size; n++) Data[n].~T(); clear(); }           // Important: never called automatically! always explicit.
+
+    inline bool         empty() const                       { return Size == 0; }
+    inline int          size() const                        { return Size; }
+    inline int          size_in_bytes() const               { return Size * (int)sizeof(T); }
+    inline int          max_size() const                    { return 0x7FFFFFFF / (int)sizeof(T); }
+    inline int          capacity() const                    { return Capacity; }
+    inline T&           operator[](int i)                   { IM_ASSERT(i >= 0 && i < Size); return Data[i]; }
+    inline const T&     operator[](int i) const             { IM_ASSERT(i >= 0 && i < Size); return Data[i]; }
+
+    inline T*           begin()                             { return Data; }
+    inline const T*     begin() const                       { return Data; }
+    inline T*           end()                               { return Data + Size; }
+    inline const T*     end() const                         { return Data + Size; }
+    inline T&           front()                             { IM_ASSERT(Size > 0); return Data[0]; }
+    inline const T&     front() const                       { IM_ASSERT(Size > 0); return Data[0]; }
+    inline T&           back()                              { IM_ASSERT(Size > 0); return Data[Size - 1]; }
+    inline const T&     back() const                        { IM_ASSERT(Size > 0); return Data[Size - 1]; }
+    inline void         swap(ImVector<T>& rhs)              { int rhs_size = rhs.Size; rhs.Size = Size; Size = rhs_size; int rhs_cap = rhs.Capacity; rhs.Capacity = Capacity; Capacity = rhs_cap; T* rhs_data = rhs.Data; rhs.Data = Data; Data = rhs_data; }
+
+    inline int          _grow_capacity(int sz) const        { int new_capacity = Capacity ? (Capacity + Capacity / 2) : 8; return new_capacity > sz ? new_capacity : sz; }
+    inline void         resize(int new_size)                { if (new_size > Capacity) reserve(_grow_capacity(new_size)); Size = new_size; }
+    inline void         resize(int new_size, const T& v)    { if (new_size > Capacity) reserve(_grow_capacity(new_size)); if (new_size > Size) for (int n = Size; n < new_size; n++) memcpy(&Data[n], &v, sizeof(v)); Size = new_size; }
+    inline void         shrink(int new_size)                { IM_ASSERT(new_size <= Size); Size = new_size; } // Resize a vector to a smaller size, guaranteed not to cause a reallocation
+    inline void         reserve(int new_capacity)           { if (new_capacity <= Capacity) return; T* new_data = (T*)IM_ALLOC((size_t)new_capacity * sizeof(T)); if (Data) { memcpy(new_data, Data, (size_t)Size * sizeof(T)); IM_FREE(Data); } Data = new_data; Capacity = new_capacity; }
+    inline void         reserve_discard(int new_capacity)   { if (new_capacity <= Capacity) return; if (Data) IM_FREE(Data); Data = (T*)IM_ALLOC((size_t)new_capacity * sizeof(T)); Capacity = new_capacity; }
+
+    // NB: It is illegal to call push_back/push_front/insert with a reference pointing inside the ImVector data itself! e.g. v.push_back(v[10]) is forbidden.
+    inline void         push_back(const T& v)               { if (Size == Capacity) reserve(_grow_capacity(Size + 1)); memcpy(&Data[Size], &v, sizeof(v)); Size++; }
+    inline void         pop_back()                          { IM_ASSERT(Size > 0); Size--; }
+    inline void         push_front(const T& v)              { if (Size == 0) push_back(v); else insert(Data, v); }
+    inline T*           erase(const T* it)                  { IM_ASSERT(it >= Data && it < Data + Size); const ptrdiff_t off = it - Data; memmove(Data + off, Data + off + 1, ((size_t)Size - (size_t)off - 1) * sizeof(T)); Size--; return Data + off; }
+    inline T*           erase(const T* it, const T* it_last){ IM_ASSERT(it >= Data && it < Data + Size && it_last >= it && it_last <= Data + Size); const ptrdiff_t count = it_last - it; const ptrdiff_t off = it - Data; memmove(Data + off, Data + off + count, ((size_t)Size - (size_t)off - (size_t)count) * sizeof(T)); Size -= (int)count; return Data + off; }
+    inline T*           erase_unsorted(const T* it)         { IM_ASSERT(it >= Data && it < Data + Size);  const ptrdiff_t off = it - Data; if (it < Data + Size - 1) memcpy(Data + off, Data + Size - 1, sizeof(T)); Size--; return Data + off; }
+    inline T*           insert(const T* it, const T& v)     { IM_ASSERT(it >= Data && it <= Data + Size); const ptrdiff_t off = it - Data; if (Size == Capacity) reserve(_grow_capacity(Size + 1)); if (off < (int)Size) memmove(Data + off + 1, Data + off, ((size_t)Size - (size_t)off) * sizeof(T)); memcpy(&Data[off], &v, sizeof(v)); Size++; return Data + off; }
+    inline bool         contains(const T& v) const          { const T* data = Data;  const T* data_end = Data + Size; while (data < data_end) if (*data++ == v) return true; return false; }
+    inline T*           find(const T& v)                    { T* data = Data;  const T* data_end = Data + Size; while (data < data_end) if (*data == v) break; else ++data; return data; }
+    inline const T*     find(const T& v) const              { const T* data = Data;  const T* data_end = Data + Size; while (data < data_end) if (*data == v) break; else ++data; return data; }
+    inline bool         find_erase(const T& v)              { const T* it = find(v); if (it < Data + Size) { erase(it); return true; } return false; }
+    inline bool         find_erase_unsorted(const T& v)     { const T* it = find(v); if (it < Data + Size) { erase_unsorted(it); return true; } return false; }
+    inline int          index_from_ptr(const T* it) const   { IM_ASSERT(it >= Data && it < Data + Size); const ptrdiff_t off = it - Data; return (int)off; }
+};
+IM_MSVC_RUNTIME_CHECKS_RESTORE
+
+//-----------------------------------------------------------------------------
+// [SECTION] ImGuiStyle
+//-----------------------------------------------------------------------------
+// You may modify the ImGui::GetStyle() main instance during initialization and before NewFrame().
+// During the frame, use ImGui::PushStyleVar(ImGuiStyleVar_XXXX)/PopStyleVar() to alter the main style values,
+// and ImGui::PushStyleColor(ImGuiCol_XXX)/PopStyleColor() for colors.
+//-----------------------------------------------------------------------------
+
+struct ImGuiStyle
+{
+    float       Alpha;                      // Global alpha applies to everything in Dear ImGui.
+    float       DisabledAlpha;              // Additional alpha multiplier applied by BeginDisabled(). Multiply over current value of Alpha.
+    ImVec2      WindowPadding;              // Padding within a window.
+    float       WindowRounding;             // Radius of window corners rounding. Set to 0.0f to have rectangular windows. Large values tend to lead to variety of artifacts and are not recommended.
+    float       WindowBorderSize;           // Thickness of border around windows. Generally set to 0.0f or 1.0f. (Other values are not well tested and more CPU/GPU costly).
+    ImVec2      WindowMinSize;              // Minimum window size. This is a global setting. If you want to constraint individual windows, use SetNextWindowSizeConstraints().
+    ImVec2      WindowTitleAlign;           // Alignment for title bar text. Defaults to (0.0f,0.5f) for left-aligned,vertically centered.
+    ImGuiDir    WindowMenuButtonPosition;   // Side of the collapsing/docking button in the title bar (None/Left/Right). Defaults to ImGuiDir_Left.
+    float       ChildRounding;              // Radius of child window corners rounding. Set to 0.0f to have rectangular windows.
+    float       ChildBorderSize;            // Thickness of border around child windows. Generally set to 0.0f or 1.0f. (Other values are not well tested and more CPU/GPU costly).
+    float       PopupRounding;              // Radius of popup window corners rounding. (Note that tooltip windows use WindowRounding)
+    float       PopupBorderSize;            // Thickness of border around popup/tooltip windows. Generally set to 0.0f or 1.0f. (Other values are not well tested and more CPU/GPU costly).
+    ImVec2      FramePadding;               // Padding within a framed rectangle (used by most widgets).
+    float       FrameRounding;              // Radius of frame corners rounding. Set to 0.0f to have rectangular frame (used by most widgets).
+    float       FrameBorderSize;            // Thickness of border around frames. Generally set to 0.0f or 1.0f. (Other values are not well tested and more CPU/GPU costly).
+    ImVec2      ItemSpacing;                // Horizontal and vertical spacing between widgets/lines.
+    ImVec2      ItemInnerSpacing;           // Horizontal and vertical spacing between within elements of a composed widget (e.g. a slider and its label).
+    ImVec2      CellPadding;                // Padding within a table cell
+    ImVec2      TouchExtraPadding;          // Expand reactive bounding box for touch-based system where touch position is not accurate enough. Unfortunately we don't sort widgets so priority on overlap will always be given to the first widget. So don't grow this too much!
+    float       IndentSpacing;              // Horizontal indentation when e.g. entering a tree node. Generally == (FontSize + FramePadding.x*2).
+    float       ColumnsMinSpacing;          // Minimum horizontal spacing between two columns. Preferably > (FramePadding.x + 1).
+    float       ScrollbarSize;              // Width of the vertical scrollbar, Height of the horizontal scrollbar.
+    float       ScrollbarRounding;          // Radius of grab corners for scrollbar.
+    float       GrabMinSize;                // Minimum width/height of a grab box for slider/scrollbar.
+    float       GrabRounding;               // Radius of grabs corners rounding. Set to 0.0f to have rectangular slider grabs.
+    float       LogSliderDeadzone;          // The size in pixels of the dead-zone around zero on logarithmic sliders that cross zero.
+    float       TabRounding;                // Radius of upper corners of a tab. Set to 0.0f to have rectangular tabs.
+    float       TabBorderSize;              // Thickness of border around tabs.
+    float       TabMinWidthForCloseButton;  // Minimum width for close button to appears on an unselected tab when hovered. Set to 0.0f to always show when hovering, set to FLT_MAX to never show close button unless selected.
+    ImGuiDir    ColorButtonPosition;        // Side of the color button in the ColorEdit4 widget (left/right). Defaults to ImGuiDir_Right.
+    ImVec2      ButtonTextAlign;            // Alignment of button text when button is larger than text. Defaults to (0.5f, 0.5f) (centered).
+    ImVec2      SelectableTextAlign;        // Alignment of selectable text. Defaults to (0.0f, 0.0f) (top-left aligned). It's generally important to keep this left-aligned if you want to lay multiple items on a same line.
+    ImVec2      DisplayWindowPadding;       // Window position are clamped to be visible within the display area or monitors by at least this amount. Only applies to regular windows.
+    ImVec2      DisplaySafeAreaPadding;     // If you cannot see the edges of your screen (e.g. on a TV) increase the safe area padding. Apply to popups/tooltips as well regular windows. NB: Prefer configuring your TV sets correctly!
+    float       MouseCursorScale;           // Scale software rendered mouse cursor (when io.MouseDrawCursor is enabled). May be removed later.
+    bool        AntiAliasedLines;           // Enable anti-aliased lines/borders. Disable if you are really tight on CPU/GPU. Latched at the beginning of the frame (copied to ImDrawList).
+    bool        AntiAliasedLinesUseTex;     // Enable anti-aliased lines/borders using textures where possible. Require backend to render with bilinear filtering (NOT point/nearest filtering). Latched at the beginning of the frame (copied to ImDrawList).
+    bool        AntiAliasedFill;            // Enable anti-aliased edges around filled shapes (rounded rectangles, circles, etc.). Disable if you are really tight on CPU/GPU. Latched at the beginning of the frame (copied to ImDrawList).
+    float       CurveTessellationTol;       // Tessellation tolerance when using PathBezierCurveTo() without a specific number of segments. Decrease for highly tessellated curves (higher quality, more polygons), increase to reduce quality.
+    float       CircleTessellationMaxError; // Maximum error (in pixels) allowed when using AddCircle()/AddCircleFilled() or drawing rounded corner rectangles with no explicit segment count specified. Decrease for higher quality but more geometry.
+    ImVec4      Colors[ImGuiCol_COUNT];
+
+    IMGUI_API ImGuiStyle();
+    IMGUI_API void ScaleAllSizes(float scale_factor);
+};
+
+//-----------------------------------------------------------------------------
+// [SECTION] ImGuiIO
+//-----------------------------------------------------------------------------
+// Communicate most settings and inputs/outputs to Dear ImGui using this structure.
+// Access via ImGui::GetIO(). Read 'Programmer guide' section in .cpp file for general usage.
+//-----------------------------------------------------------------------------
+
+// [Internal] Storage used by IsKeyDown(), IsKeyPressed() etc functions.
+// If prior to 1.87 you used io.KeysDownDuration[] (which was marked as internal), you should use GetKeyData(key)->DownDuration and not io.KeysData[key]->DownDuration.
+struct ImGuiKeyData
+{
+    bool        Down;               // True for if key is down
+    float       DownDuration;       // Duration the key has been down (<0.0f: not pressed, 0.0f: just pressed, >0.0f: time held)
+    float       DownDurationPrev;   // Last frame duration the key has been down
+    float       AnalogValue;        // 0.0f..1.0f for gamepad values
+};
+
+struct ImGuiIO
+{
+    //------------------------------------------------------------------
+    // Configuration                            // Default value
+    //------------------------------------------------------------------
+
+    ImGuiConfigFlags   ConfigFlags;             // = 0              // See ImGuiConfigFlags_ enum. Set by user/application. Gamepad/keyboard navigation options, etc.
+    ImGuiBackendFlags  BackendFlags;            // = 0              // See ImGuiBackendFlags_ enum. Set by backend (imgui_impl_xxx files or custom backend) to communicate features supported by the backend.
+    ImVec2      DisplaySize;                    // <unset>          // Main display size, in pixels (generally == GetMainViewport()->Size). May change every frame.
+    float       DeltaTime;                      // = 1.0f/60.0f     // Time elapsed since last frame, in seconds. May change every frame.
+    float       IniSavingRate;                  // = 5.0f           // Minimum time between saving positions/sizes to .ini file, in seconds.
+    const char* IniFilename;                    // = "imgui.ini"    // Path to .ini file (important: default "imgui.ini" is relative to current working dir!). Set NULL to disable automatic .ini loading/saving or if you want to manually call LoadIniSettingsXXX() / SaveIniSettingsXXX() functions.
+    const char* LogFilename;                    // = "imgui_log.txt"// Path to .log file (default parameter to ImGui::LogToFile when no file is specified).
+    float       MouseDoubleClickTime;           // = 0.30f          // Time for a double-click, in seconds.
+    float       MouseDoubleClickMaxDist;        // = 6.0f           // Distance threshold to stay in to validate a double-click, in pixels.
+    float       MouseDragThreshold;             // = 6.0f           // Distance threshold before considering we are dragging.
+    float       KeyRepeatDelay;                 // = 0.250f         // When holding a key/button, time before it starts repeating, in seconds (for buttons in Repeat mode, etc.).
+    float       KeyRepeatRate;                  // = 0.050f         // When holding a key/button, rate at which it repeats, in seconds.
+    void*       UserData;                       // = NULL           // Store your own data for retrieval by callbacks.
+
+    ImFontAtlas*Fonts;                          // <auto>           // Font atlas: load, rasterize and pack one or more fonts into a single texture.
+    float       FontGlobalScale;                // = 1.0f           // Global scale all fonts
+    bool        FontAllowUserScaling;           // = false          // Allow user scaling text of individual window with CTRL+Wheel.
+    ImFont*     FontDefault;                    // = NULL           // Font to use on NewFrame(). Use NULL to uses Fonts->Fonts[0].
+    ImVec2      DisplayFramebufferScale;        // = (1, 1)         // For retina display or other situations where window coordinates are different from framebuffer coordinates. This generally ends up in ImDrawData::FramebufferScale.
+
+    // Miscellaneous options
+    bool        MouseDrawCursor;                // = false          // Request ImGui to draw a mouse cursor for you (if you are on a platform without a mouse cursor). Cannot be easily renamed to 'io.ConfigXXX' because this is frequently used by backend implementations.
+    bool        ConfigMacOSXBehaviors;          // = defined(__APPLE__) // OS X style: Text editing cursor movement using Alt instead of Ctrl, Shortcuts using Cmd/Super instead of Ctrl, Line/Text Start and End using Cmd+Arrows instead of Home/End, Double click selects by word instead of selecting whole text, Multi-selection in lists uses Cmd/Super instead of Ctrl.
+    bool        ConfigInputTrickleEventQueue;   // = true           // Enable input queue trickling: some types of events submitted during the same frame (e.g. button down + up) will be spread over multiple frames, improving interactions with low framerates.
+    bool        ConfigInputTextCursorBlink;     // = true           // Enable blinking cursor (optional as some users consider it to be distracting).
+    bool        ConfigDragClickToInputText;     // = false          // [BETA] Enable turning DragXXX widgets into text input with a simple mouse click-release (without moving). Not desirable on devices without a keyboard.
+    bool        ConfigWindowsResizeFromEdges;   // = true           // Enable resizing of windows from their edges and from the lower-left corner. This requires (io.BackendFlags & ImGuiBackendFlags_HasMouseCursors) because it needs mouse cursor feedback. (This used to be a per-window ImGuiWindowFlags_ResizeFromAnySide flag)
+    bool        ConfigWindowsMoveFromTitleBarOnly; // = false       // Enable allowing to move windows only when clicking on their title bar. Does not apply to windows without a title bar.
+    float       ConfigMemoryCompactTimer;       // = 60.0f          // Timer (in seconds) to free transient windows/tables memory buffers when unused. Set to -1.0f to disable.
+
+    //------------------------------------------------------------------
+    // Platform Functions
+    // (the imgui_impl_xxxx backend files are setting those up for you)
+    //------------------------------------------------------------------
+
+    // Optional: Platform/Renderer backend name (informational only! will be displayed in About Window) + User data for backend/wrappers to store their own stuff.
+    const char* BackendPlatformName;            // = NULL
+    const char* BackendRendererName;            // = NULL
+    void*       BackendPlatformUserData;        // = NULL           // User data for platform backend
+    void*       BackendRendererUserData;        // = NULL           // User data for renderer backend
+    void*       BackendLanguageUserData;        // = NULL           // User data for non C++ programming language backend
+
+    // Optional: Access OS clipboard
+    // (default to use native Win32 clipboard on Windows, otherwise uses a private clipboard. Override to access OS clipboard on other architectures)
+    const char* (*GetClipboardTextFn)(void* user_data);
+    void        (*SetClipboardTextFn)(void* user_data, const char* text);
+    void*       ClipboardUserData;
+
+    // Optional: Notify OS Input Method Editor of the screen position of your cursor for text input position (e.g. when using Japanese/Chinese IME on Windows)
+    // (default to use native imm32 api on Windows)
+    void        (*SetPlatformImeDataFn)(ImGuiViewport* viewport, ImGuiPlatformImeData* data);
+#ifndef IMGUI_DISABLE_OBSOLETE_FUNCTIONS
+    void*       ImeWindowHandle;                // = NULL           // [Obsolete] Set ImGuiViewport::PlatformHandleRaw instead. Set this to your HWND to get automatic IME cursor positioning.
+#else
+    void*       _UnusedPadding;                                     // Unused field to keep data structure the same size.
+#endif
+
+    //------------------------------------------------------------------
+    // Input - Call before calling NewFrame()
+    //------------------------------------------------------------------
+
+    // Input Functions
+    IMGUI_API void  AddKeyEvent(ImGuiKey key, bool down);                   // Queue a new key down/up event. Key should be "translated" (as in, generally ImGuiKey_A matches the key end-user would use to emit an 'A' character)
+    IMGUI_API void  AddKeyAnalogEvent(ImGuiKey key, bool down, float v);    // Queue a new key down/up event for analog values (e.g. ImGuiKey_Gamepad_ values). Dead-zones should be handled by the backend.
+    IMGUI_API void  AddMousePosEvent(float x, float y);                     // Queue a mouse position update. Use -FLT_MAX,-FLT_MAX to signify no mouse (e.g. app not focused and not hovered)
+    IMGUI_API void  AddMouseButtonEvent(int button, bool down);             // Queue a mouse button change
+    IMGUI_API void  AddMouseWheelEvent(float wh_x, float wh_y);             // Queue a mouse wheel update
+    IMGUI_API void  AddFocusEvent(bool focused);                            // Queue a gain/loss of focus for the application (generally based on OS/platform focus of your window)
+    IMGUI_API void  AddInputCharacter(unsigned int c);                      // Queue a new character input
+    IMGUI_API void  AddInputCharacterUTF16(ImWchar16 c);                    // Queue a new character input from an UTF-16 character, it can be a surrogate
+    IMGUI_API void  AddInputCharactersUTF8(const char* str);                // Queue a new characters input from an UTF-8 string
+
+    IMGUI_API void  SetKeyEventNativeData(ImGuiKey key, int native_keycode, int native_scancode, int native_legacy_index = -1); // [Optional] Specify index for legacy <1.87 IsKeyXXX() functions with native indices + specify native keycode, scancode.
+    IMGUI_API void  SetAppAcceptingEvents(bool accepting_events);           // Set master flag for accepting key/mouse/text events (default to true). Useful if you have native dialog boxes that are interrupting your application loop/refresh, and you want to disable events being queued while your app is frozen.
+    IMGUI_API void  ClearInputCharacters();                                 // [Internal] Clear the text input buffer manually
+    IMGUI_API void  ClearInputKeys();                                       // [Internal] Release all keys
+
+    //------------------------------------------------------------------
+    // Output - Updated by NewFrame() or EndFrame()/Render()
+    // (when reading from the io.WantCaptureMouse, io.WantCaptureKeyboard flags to dispatch your inputs, it is
+    //  generally easier and more correct to use their state BEFORE calling NewFrame(). See FAQ for details!)
+    //------------------------------------------------------------------
+
+    bool        WantCaptureMouse;                   // Set when Dear ImGui will use mouse inputs, in this case do not dispatch them to your main game/application (either way, always pass on mouse inputs to imgui). (e.g. unclicked mouse is hovering over an imgui window, widget is active, mouse was clicked over an imgui window, etc.).
+    bool        WantCaptureKeyboard;                // Set when Dear ImGui will use keyboard inputs, in this case do not dispatch them to your main game/application (either way, always pass keyboard inputs to imgui). (e.g. InputText active, or an imgui window is focused and navigation is enabled, etc.).
+    bool        WantTextInput;                      // Mobile/console: when set, you may display an on-screen keyboard. This is set by Dear ImGui when it wants textual keyboard input to happen (e.g. when a InputText widget is active).
+    bool        WantSetMousePos;                    // MousePos has been altered, backend should reposition mouse on next frame. Rarely used! Set only when ImGuiConfigFlags_NavEnableSetMousePos flag is enabled.
+    bool        WantSaveIniSettings;                // When manual .ini load/save is active (io.IniFilename == NULL), this will be set to notify your application that you can call SaveIniSettingsToMemory() and save yourself. Important: clear io.WantSaveIniSettings yourself after saving!
+    bool        NavActive;                          // Keyboard/Gamepad navigation is currently allowed (will handle ImGuiKey_NavXXX events) = a window is focused and it doesn't use the ImGuiWindowFlags_NoNavInputs flag.
+    bool        NavVisible;                         // Keyboard/Gamepad navigation is visible and allowed (will handle ImGuiKey_NavXXX events).
+    float       Framerate;                          // Rough estimate of application framerate, in frame per second. Solely for convenience. Rolling average estimation based on io.DeltaTime over 120 frames.
+    int         MetricsRenderVertices;              // Vertices output during last call to Render()
+    int         MetricsRenderIndices;               // Indices output during last call to Render() = number of triangles * 3
+    int         MetricsRenderWindows;               // Number of visible windows
+    int         MetricsActiveWindows;               // Number of active windows
+    int         MetricsActiveAllocations;           // Number of active allocations, updated by MemAlloc/MemFree based on current context. May be off if you have multiple imgui contexts.
+    ImVec2      MouseDelta;                         // Mouse delta. Note that this is zero if either current or previous position are invalid (-FLT_MAX,-FLT_MAX), so a disappearing/reappearing mouse won't have a huge delta.
+
+    // Legacy: before 1.87, we required backend to fill io.KeyMap[] (imgui->native map) during initialization and io.KeysDown[] (native indices) every frame.
+    // This is still temporarily supported as a legacy feature. However the new preferred scheme is for backend to call io.AddKeyEvent().
+#ifndef IMGUI_DISABLE_OBSOLETE_KEYIO
+    int         KeyMap[ImGuiKey_COUNT];             // [LEGACY] Input: map of indices into the KeysDown[512] entries array which represent your "native" keyboard state. The first 512 are now unused and should be kept zero. Legacy backend will write into KeyMap[] using ImGuiKey_ indices which are always >512.
+    bool        KeysDown[ImGuiKey_COUNT];           // [LEGACY] Input: Keyboard keys that are pressed (ideally left in the "native" order your engine has access to keyboard keys, so you can use your own defines/enums for keys). This used to be [512] sized. It is now ImGuiKey_COUNT to allow legacy io.KeysDown[GetKeyIndex(...)] to work without an overflow.
+#endif
+
+    //------------------------------------------------------------------
+    // [Internal] Dear ImGui will maintain those fields. Forward compatibility not guaranteed!
+    //------------------------------------------------------------------
+
+    // Main Input State
+    // (this block used to be written by backend, since 1.87 it is best to NOT write to those directly, call the AddXXX functions above instead)
+    // (reading from those variables is fair game, as they are extremely unlikely to be moving anywhere)
+    ImVec2      MousePos;                           // Mouse position, in pixels. Set to ImVec2(-FLT_MAX, -FLT_MAX) if mouse is unavailable (on another screen, etc.)
+    bool        MouseDown[5];                       // Mouse buttons: 0=left, 1=right, 2=middle + extras (ImGuiMouseButton_COUNT == 5). Dear ImGui mostly uses left and right buttons. Others buttons allows us to track if the mouse is being used by your application + available to user as a convenience via IsMouse** API.
+    float       MouseWheel;                         // Mouse wheel Vertical: 1 unit scrolls about 5 lines text.
+    float       MouseWheelH;                        // Mouse wheel Horizontal. Most users don't have a mouse with an horizontal wheel, may not be filled by all backends.
+    bool        KeyCtrl;                            // Keyboard modifier down: Control
+    bool        KeyShift;                           // Keyboard modifier down: Shift
+    bool        KeyAlt;                             // Keyboard modifier down: Alt
+    bool        KeySuper;                           // Keyboard modifier down: Cmd/Super/Windows
+    float       NavInputs[ImGuiNavInput_COUNT];     // Gamepad inputs. Cleared back to zero by EndFrame(). Keyboard keys will be auto-mapped and be written here by NewFrame().
+
+    // Other state maintained from data above + IO function calls
+    ImGuiModFlags KeyMods;                          // Key mods flags (same as io.KeyCtrl/KeyShift/KeyAlt/KeySuper but merged into flags), updated by NewFrame()
+    ImGuiKeyData KeysData[ImGuiKey_KeysData_SIZE];  // Key state for all known keys. Use IsKeyXXX() functions to access this.
+    bool        WantCaptureMouseUnlessPopupClose;   // Alternative to WantCaptureMouse: (WantCaptureMouse == true && WantCaptureMouseUnlessPopupClose == false) when a click over void is expected to close a popup.
+    ImVec2      MousePosPrev;                       // Previous mouse position (note that MouseDelta is not necessary == MousePos-MousePosPrev, in case either position is invalid)
+    ImVec2      MouseClickedPos[5];                 // Position at time of clicking
+    double      MouseClickedTime[5];                // Time of last click (used to figure out double-click)
+    bool        MouseClicked[5];                    // Mouse button went from !Down to Down (same as MouseClickedCount[x] != 0)
+    bool        MouseDoubleClicked[5];              // Has mouse button been double-clicked? (same as MouseClickedCount[x] == 2)
+    ImU16       MouseClickedCount[5];               // == 0 (not clicked), == 1 (same as MouseClicked[]), == 2 (double-clicked), == 3 (triple-clicked) etc. when going from !Down to Down
+    ImU16       MouseClickedLastCount[5];           // Count successive number of clicks. Stays valid after mouse release. Reset after another click is done.
+    bool        MouseReleased[5];                   // Mouse button went from Down to !Down
+    bool        MouseDownOwned[5];                  // Track if button was clicked inside a dear imgui window or over void blocked by a popup. We don't request mouse capture from the application if click started outside ImGui bounds.
+    bool        MouseDownOwnedUnlessPopupClose[5];  // Track if button was clicked inside a dear imgui window.
+    float       MouseDownDuration[5];               // Duration the mouse button has been down (0.0f == just clicked)
+    float       MouseDownDurationPrev[5];           // Previous time the mouse button has been down
+    float       MouseDragMaxDistanceSqr[5];         // Squared maximum distance of how much mouse has traveled from the clicking point (used for moving thresholds)
+    float       NavInputsDownDuration[ImGuiNavInput_COUNT];
+    float       NavInputsDownDurationPrev[ImGuiNavInput_COUNT];
+    float       PenPressure;                        // Touch/Pen pressure (0.0f to 1.0f, should be >0.0f only when MouseDown[0] == true). Helper storage currently unused by Dear ImGui.
+    bool        AppFocusLost;                       // Only modify via AddFocusEvent()
+    bool        AppAcceptingEvents;                 // Only modify via SetAppAcceptingEvents()
+    ImS8        BackendUsingLegacyKeyArrays;        // -1: unknown, 0: using AddKeyEvent(), 1: using legacy io.KeysDown[]
+    bool        BackendUsingLegacyNavInputArray;    // 0: using AddKeyAnalogEvent(), 1: writing to legacy io.NavInputs[] directly
+    ImWchar16   InputQueueSurrogate;                // For AddInputCharacterUTF16()
+    ImVector<ImWchar> InputQueueCharacters;         // Queue of _characters_ input (obtained by platform backend). Fill using AddInputCharacter() helper.
+
+    IMGUI_API   ImGuiIO();
+};
+
+//-----------------------------------------------------------------------------
+// [SECTION] Misc data structures
+//-----------------------------------------------------------------------------
+
+// Shared state of InputText(), passed as an argument to your callback when a ImGuiInputTextFlags_Callback* flag is used.
+// The callback function should return 0 by default.
+// Callbacks (follow a flag name and see comments in ImGuiInputTextFlags_ declarations for more details)
+// - ImGuiInputTextFlags_CallbackEdit:        Callback on buffer edit (note that InputText() already returns true on edit, the callback is useful mainly to manipulate the underlying buffer while focus is active)
+// - ImGuiInputTextFlags_CallbackAlways:      Callback on each iteration
+// - ImGuiInputTextFlags_CallbackCompletion:  Callback on pressing TAB
+// - ImGuiInputTextFlags_CallbackHistory:     Callback on pressing Up/Down arrows
+// - ImGuiInputTextFlags_CallbackCharFilter:  Callback on character inputs to replace or discard them. Modify 'EventChar' to replace or discard, or return 1 in callback to discard.
+// - ImGuiInputTextFlags_CallbackResize:      Callback on buffer capacity changes request (beyond 'buf_size' parameter value), allowing the string to grow.
+struct ImGuiInputTextCallbackData
+{
+    ImGuiInputTextFlags EventFlag;      // One ImGuiInputTextFlags_Callback*    // Read-only
+    ImGuiInputTextFlags Flags;          // What user passed to InputText()      // Read-only
+    void*               UserData;       // What user passed to InputText()      // Read-only
+
+    // Arguments for the different callback events
+    // - To modify the text buffer in a callback, prefer using the InsertChars() / DeleteChars() function. InsertChars() will take care of calling the resize callback if necessary.
+    // - If you know your edits are not going to resize the underlying buffer allocation, you may modify the contents of 'Buf[]' directly. You need to update 'BufTextLen' accordingly (0 <= BufTextLen < BufSize) and set 'BufDirty'' to true so InputText can update its internal state.
+    ImWchar             EventChar;      // Character input                      // Read-write   // [CharFilter] Replace character with another one, or set to zero to drop. return 1 is equivalent to setting EventChar=0;
+    ImGuiKey            EventKey;       // Key pressed (Up/Down/TAB)            // Read-only    // [Completion,History]
+    char*               Buf;            // Text buffer                          // Read-write   // [Resize] Can replace pointer / [Completion,History,Always] Only write to pointed data, don't replace the actual pointer!
+    int                 BufTextLen;     // Text length (in bytes)               // Read-write   // [Resize,Completion,History,Always] Exclude zero-terminator storage. In C land: == strlen(some_text), in C++ land: string.length()
+    int                 BufSize;        // Buffer size (in bytes) = capacity+1  // Read-only    // [Resize,Completion,History,Always] Include zero-terminator storage. In C land == ARRAYSIZE(my_char_array), in C++ land: string.capacity()+1
+    bool                BufDirty;       // Set if you modify Buf/BufTextLen!    // Write        // [Completion,History,Always]
+    int                 CursorPos;      //                                      // Read-write   // [Completion,History,Always]
+    int                 SelectionStart; //                                      // Read-write   // [Completion,History,Always] == to SelectionEnd when no selection)
+    int                 SelectionEnd;   //                                      // Read-write   // [Completion,History,Always]
+
+    // Helper functions for text manipulation.
+    // Use those function to benefit from the CallbackResize behaviors. Calling those function reset the selection.
+    IMGUI_API ImGuiInputTextCallbackData();
+    IMGUI_API void      DeleteChars(int pos, int bytes_count);
+    IMGUI_API void      InsertChars(int pos, const char* text, const char* text_end = NULL);
+    void                SelectAll()             { SelectionStart = 0; SelectionEnd = BufTextLen; }
+    void                ClearSelection()        { SelectionStart = SelectionEnd = BufTextLen; }
+    bool                HasSelection() const    { return SelectionStart != SelectionEnd; }
+};
+
+// Resizing callback data to apply custom constraint. As enabled by SetNextWindowSizeConstraints(). Callback is called during the next Begin().
+// NB: For basic min/max size constraint on each axis you don't need to use the callback! The SetNextWindowSizeConstraints() parameters are enough.
+struct ImGuiSizeCallbackData
+{
+    void*   UserData;       // Read-only.   What user passed to SetNextWindowSizeConstraints()
+    ImVec2  Pos;            // Read-only.   Window position, for reference.
+    ImVec2  CurrentSize;    // Read-only.   Current window size.
+    ImVec2  DesiredSize;    // Read-write.  Desired size, based on user's mouse position. Write to this field to restrain resizing.
+};
+
+// Data payload for Drag and Drop operations: AcceptDragDropPayload(), GetDragDropPayload()
+struct ImGuiPayload
+{
+    // Members
+    void*           Data;               // Data (copied and owned by dear imgui)
+    int             DataSize;           // Data size
+
+    // [Internal]
+    ImGuiID         SourceId;           // Source item id
+    ImGuiID         SourceParentId;     // Source parent id (if available)
+    int             DataFrameCount;     // Data timestamp
+    char            DataType[32 + 1];   // Data type tag (short user-supplied string, 32 characters max)
+    bool            Preview;            // Set when AcceptDragDropPayload() was called and mouse has been hovering the target item (nb: handle overlapping drag targets)
+    bool            Delivery;           // Set when AcceptDragDropPayload() was called and mouse button is released over the target item.
+
+    ImGuiPayload()  { Clear(); }
+    void Clear()    { SourceId = SourceParentId = 0; Data = NULL; DataSize = 0; memset(DataType, 0, sizeof(DataType)); DataFrameCount = -1; Preview = Delivery = false; }
+    bool IsDataType(const char* type) const { return DataFrameCount != -1 && strcmp(type, DataType) == 0; }
+    bool IsPreview() const                  { return Preview; }
+    bool IsDelivery() const                 { return Delivery; }
+};
+
+// Sorting specification for one column of a table (sizeof == 12 bytes)
+struct ImGuiTableColumnSortSpecs
+{
+    ImGuiID                     ColumnUserID;       // User id of the column (if specified by a TableSetupColumn() call)
+    ImS16                       ColumnIndex;        // Index of the column
+    ImS16                       SortOrder;          // Index within parent ImGuiTableSortSpecs (always stored in order starting from 0, tables sorted on a single criteria will always have a 0 here)
+    ImGuiSortDirection          SortDirection : 8;  // ImGuiSortDirection_Ascending or ImGuiSortDirection_Descending (you can use this or SortSign, whichever is more convenient for your sort function)
+
+    ImGuiTableColumnSortSpecs() { memset(this, 0, sizeof(*this)); }
+};
+
+// Sorting specifications for a table (often handling sort specs for a single column, occasionally more)
+// Obtained by calling TableGetSortSpecs().
+// When 'SpecsDirty == true' you can sort your data. It will be true with sorting specs have changed since last call, or the first time.
+// Make sure to set 'SpecsDirty = false' after sorting, else you may wastefully sort your data every frame!
+struct ImGuiTableSortSpecs
+{
+    const ImGuiTableColumnSortSpecs* Specs;     // Pointer to sort spec array.
+    int                         SpecsCount;     // Sort spec count. Most often 1. May be > 1 when ImGuiTableFlags_SortMulti is enabled. May be == 0 when ImGuiTableFlags_SortTristate is enabled.
+    bool                        SpecsDirty;     // Set to true when specs have changed since last time! Use this to sort again, then clear the flag.
+
+    ImGuiTableSortSpecs()       { memset(this, 0, sizeof(*this)); }
+};
+
+//-----------------------------------------------------------------------------
+// [SECTION] Helpers (ImGuiOnceUponAFrame, ImGuiTextFilter, ImGuiTextBuffer, ImGuiStorage, ImGuiListClipper, ImColor)
+//-----------------------------------------------------------------------------
+
+// Helper: Unicode defines
+#define IM_UNICODE_CODEPOINT_INVALID 0xFFFD     // Invalid Unicode code point (standard value).
+#ifdef IMGUI_USE_WCHAR32
+#define IM_UNICODE_CODEPOINT_MAX     0x10FFFF   // Maximum Unicode code point supported by this build.
+#else
+#define IM_UNICODE_CODEPOINT_MAX     0xFFFF     // Maximum Unicode code point supported by this build.
+#endif
+
+// Helper: Execute a block of code at maximum once a frame. Convenient if you want to quickly create an UI within deep-nested code that runs multiple times every frame.
+// Usage: static ImGuiOnceUponAFrame oaf; if (oaf) ImGui::Text("This will be called only once per frame");
+struct ImGuiOnceUponAFrame
+{
+    ImGuiOnceUponAFrame() { RefFrame = -1; }
+    mutable int RefFrame;
+    operator bool() const { int current_frame = ImGui::GetFrameCount(); if (RefFrame == current_frame) return false; RefFrame = current_frame; return true; }
+};
+
+// Helper: Parse and apply text filters. In format "aaaaa[,bbbb][,ccccc]"
+struct ImGuiTextFilter
+{
+    IMGUI_API           ImGuiTextFilter(const char* default_filter = "");
+    IMGUI_API bool      Draw(const char* label = "Filter (inc,-exc)", float width = 0.0f);  // Helper calling InputText+Build
+    IMGUI_API bool      PassFilter(const char* text, const char* text_end = NULL) const;
+    IMGUI_API void      Build();
+    void                Clear()          { InputBuf[0] = 0; Build(); }
+    bool                IsActive() const { return !Filters.empty(); }
+
+    // [Internal]
+    struct ImGuiTextRange
+    {
+        const char*     b;
+        const char*     e;
+
+        ImGuiTextRange()                                { b = e = NULL; }
+        ImGuiTextRange(const char* _b, const char* _e)  { b = _b; e = _e; }
+        bool            empty() const                   { return b == e; }
+        IMGUI_API void  split(char separator, ImVector<ImGuiTextRange>* out) const;
+    };
+    char                    InputBuf[256];
+    ImVector<ImGuiTextRange>Filters;
+    int                     CountGrep;
+};
+
+// Helper: Growable text buffer for logging/accumulating text
+// (this could be called 'ImGuiTextBuilder' / 'ImGuiStringBuilder')
+struct ImGuiTextBuffer
+{
+    ImVector<char>      Buf;
+    IMGUI_API static char EmptyString[1];
+
+    ImGuiTextBuffer()   { }
+    inline char         operator[](int i) const { IM_ASSERT(Buf.Data != NULL); return Buf.Data[i]; }
+    const char*         begin() const           { return Buf.Data ? &Buf.front() : EmptyString; }
+    const char*         end() const             { return Buf.Data ? &Buf.back() : EmptyString; }   // Buf is zero-terminated, so end() will point on the zero-terminator
+    int                 size() const            { return Buf.Size ? Buf.Size - 1 : 0; }
+    bool                empty() const           { return Buf.Size <= 1; }
+    void                clear()                 { Buf.clear(); }
+    void                reserve(int capacity)   { Buf.reserve(capacity); }
+    const char*         c_str() const           { return Buf.Data ? Buf.Data : EmptyString; }
+    IMGUI_API void      append(const char* str, const char* str_end = NULL);
+    IMGUI_API void      appendf(const char* fmt, ...) IM_FMTARGS(2);
+    IMGUI_API void      appendfv(const char* fmt, va_list args) IM_FMTLIST(2);
+};
+
+// Helper: Key->Value storage
+// Typically you don't have to worry about this since a storage is held within each Window.
+// We use it to e.g. store collapse state for a tree (Int 0/1)
+// This is optimized for efficient lookup (dichotomy into a contiguous buffer) and rare insertion (typically tied to user interactions aka max once a frame)
+// You can use it as custom user storage for temporary values. Declare your own storage if, for example:
+// - You want to manipulate the open/close state of a particular sub-tree in your interface (tree node uses Int 0/1 to store their state).
+// - You want to store custom debug data easily without adding or editing structures in your code (probably not efficient, but convenient)
+// Types are NOT stored, so it is up to you to make sure your Key don't collide with different types.
+struct ImGuiStorage
+{
+    // [Internal]
+    struct ImGuiStoragePair
+    {
+        ImGuiID key;
+        union { int val_i; float val_f; void* val_p; };
+        ImGuiStoragePair(ImGuiID _key, int _val_i)      { key = _key; val_i = _val_i; }
+        ImGuiStoragePair(ImGuiID _key, float _val_f)    { key = _key; val_f = _val_f; }
+        ImGuiStoragePair(ImGuiID _key, void* _val_p)    { key = _key; val_p = _val_p; }
+    };
+
+    ImVector<ImGuiStoragePair>      Data;
+
+    // - Get***() functions find pair, never add/allocate. Pairs are sorted so a query is O(log N)
+    // - Set***() functions find pair, insertion on demand if missing.
+    // - Sorted insertion is costly, paid once. A typical frame shouldn't need to insert any new pair.
+    void                Clear() { Data.clear(); }
+    IMGUI_API int       GetInt(ImGuiID key, int default_val = 0) const;
+    IMGUI_API void      SetInt(ImGuiID key, int val);
+    IMGUI_API bool      GetBool(ImGuiID key, bool default_val = false) const;
+    IMGUI_API void      SetBool(ImGuiID key, bool val);
+    IMGUI_API float     GetFloat(ImGuiID key, float default_val = 0.0f) const;
+    IMGUI_API void      SetFloat(ImGuiID key, float val);
+    IMGUI_API void*     GetVoidPtr(ImGuiID key) const; // default_val is NULL
+    IMGUI_API void      SetVoidPtr(ImGuiID key, void* val);
+
+    // - Get***Ref() functions finds pair, insert on demand if missing, return pointer. Useful if you intend to do Get+Set.
+    // - References are only valid until a new value is added to the storage. Calling a Set***() function or a Get***Ref() function invalidates the pointer.
+    // - A typical use case where this is convenient for quick hacking (e.g. add storage during a live Edit&Continue session if you can't modify existing struct)
+    //      float* pvar = ImGui::GetFloatRef(key); ImGui::SliderFloat("var", pvar, 0, 100.0f); some_var += *pvar;
+    IMGUI_API int*      GetIntRef(ImGuiID key, int default_val = 0);
+    IMGUI_API bool*     GetBoolRef(ImGuiID key, bool default_val = false);
+    IMGUI_API float*    GetFloatRef(ImGuiID key, float default_val = 0.0f);
+    IMGUI_API void**    GetVoidPtrRef(ImGuiID key, void* default_val = NULL);
+
+    // Use on your own storage if you know only integer are being stored (open/close all tree nodes)
+    IMGUI_API void      SetAllInt(int val);
+
+    // For quicker full rebuild of a storage (instead of an incremental one), you may add all your contents and then sort once.
+    IMGUI_API void      BuildSortByKey();
+};
+
+// Helper: Manually clip large list of items.
+// If you have lots evenly spaced items and you have a random access to the list, you can perform coarse
+// clipping based on visibility to only submit items that are in view.
+// The clipper calculates the range of visible items and advance the cursor to compensate for the non-visible items we have skipped.
+// (Dear ImGui already clip items based on their bounds but: it needs to first layout the item to do so, and generally
+//  fetching/submitting your own data incurs additional cost. Coarse clipping using ImGuiListClipper allows you to easily
+//  scale using lists with tens of thousands of items without a problem)
+// Usage:
+//   ImGuiListClipper clipper;
+//   clipper.Begin(1000);         // We have 1000 elements, evenly spaced.
+//   while (clipper.Step())
+//       for (int i = clipper.DisplayStart; i < clipper.DisplayEnd; i++)
+//           ImGui::Text("line number %d", i);
+// Generally what happens is:
+// - Clipper lets you process the first element (DisplayStart = 0, DisplayEnd = 1) regardless of it being visible or not.
+// - User code submit that one element.
+// - Clipper can measure the height of the first element
+// - Clipper calculate the actual range of elements to display based on the current clipping rectangle, position the cursor before the first visible element.
+// - User code submit visible elements.
+// - The clipper also handles various subtleties related to keyboard/gamepad navigation, wrapping etc.
+struct ImGuiListClipper
+{
+    int             DisplayStart;       // First item to display, updated by each call to Step()
+    int             DisplayEnd;         // End of items to display (exclusive)
+    int             ItemsCount;         // [Internal] Number of items
+    float           ItemsHeight;        // [Internal] Height of item after a first step and item submission can calculate it
+    float           StartPosY;          // [Internal] Cursor position at the time of Begin() or after table frozen rows are all processed
+    void*           TempData;           // [Internal] Internal data
+
+    // items_count: Use INT_MAX if you don't know how many items you have (in which case the cursor won't be advanced in the final step)
+    // items_height: Use -1.0f to be calculated automatically on first step. Otherwise pass in the distance between your items, typically GetTextLineHeightWithSpacing() or GetFrameHeightWithSpacing().
+    IMGUI_API ImGuiListClipper();
+    IMGUI_API ~ImGuiListClipper();
+    IMGUI_API void  Begin(int items_count, float items_height = -1.0f);
+    IMGUI_API void  End();             // Automatically called on the last call of Step() that returns false.
+    IMGUI_API bool  Step();            // Call until it returns false. The DisplayStart/DisplayEnd fields will be set and you can process/draw those items.
+
+    // Call ForceDisplayRangeByIndices() before first call to Step() if you need a range of items to be displayed regardless of visibility.
+    IMGUI_API void  ForceDisplayRangeByIndices(int item_min, int item_max); // item_max is exclusive e.g. use (42, 42+1) to make item 42 always visible BUT due to alignment/padding of certain items it is likely that an extra item may be included on either end of the display range.
+
+#ifndef IMGUI_DISABLE_OBSOLETE_FUNCTIONS
+    inline ImGuiListClipper(int items_count, float items_height = -1.0f) { memset(this, 0, sizeof(*this)); ItemsCount = -1; Begin(items_count, items_height); } // [removed in 1.79]
+#endif
+};
+
+// Helpers macros to generate 32-bit encoded colors
+// User can declare their own format by #defining the 5 _SHIFT/_MASK macros in their imconfig file.
+#ifndef IM_COL32_R_SHIFT
+#ifdef IMGUI_USE_BGRA_PACKED_COLOR
+#define IM_COL32_R_SHIFT    16
+#define IM_COL32_G_SHIFT    8
+#define IM_COL32_B_SHIFT    0
+#define IM_COL32_A_SHIFT    24
+#define IM_COL32_A_MASK     0xFF000000
+#else
+#define IM_COL32_R_SHIFT    0
+#define IM_COL32_G_SHIFT    8
+#define IM_COL32_B_SHIFT    16
+#define IM_COL32_A_SHIFT    24
+#define IM_COL32_A_MASK     0xFF000000
+#endif
+#endif
+#define IM_COL32(R,G,B,A)    (((ImU32)(A)<<IM_COL32_A_SHIFT) | ((ImU32)(B)<<IM_COL32_B_SHIFT) | ((ImU32)(G)<<IM_COL32_G_SHIFT) | ((ImU32)(R)<<IM_COL32_R_SHIFT))
+#define IM_COL32_WHITE       IM_COL32(255,255,255,255)  // Opaque white = 0xFFFFFFFF
+#define IM_COL32_BLACK       IM_COL32(0,0,0,255)        // Opaque black
+#define IM_COL32_BLACK_TRANS IM_COL32(0,0,0,0)          // Transparent black = 0x00000000
+
+// Helper: ImColor() implicitly converts colors to either ImU32 (packed 4x1 byte) or ImVec4 (4x1 float)
+// Prefer using IM_COL32() macros if you want a guaranteed compile-time ImU32 for usage with ImDrawList API.
+// **Avoid storing ImColor! Store either u32 of ImVec4. This is not a full-featured color class. MAY OBSOLETE.
+// **None of the ImGui API are using ImColor directly but you can use it as a convenience to pass colors in either ImU32 or ImVec4 formats. Explicitly cast to ImU32 or ImVec4 if needed.
+struct ImColor
+{
+    ImVec4          Value;
+
+    constexpr ImColor()                                             { }
+    constexpr ImColor(float r, float g, float b, float a = 1.0f)    : Value(r, g, b, a) { }
+    constexpr ImColor(const ImVec4& col)                            : Value(col) {}
+    ImColor(int r, int g, int b, int a = 255)                       { float sc = 1.0f / 255.0f; Value.x = (float)r * sc; Value.y = (float)g * sc; Value.z = (float)b * sc; Value.w = (float)a * sc; }
+    ImColor(ImU32 rgba)                                             { float sc = 1.0f / 255.0f; Value.x = (float)((rgba >> IM_COL32_R_SHIFT) & 0xFF) * sc; Value.y = (float)((rgba >> IM_COL32_G_SHIFT) & 0xFF) * sc; Value.z = (float)((rgba >> IM_COL32_B_SHIFT) & 0xFF) * sc; Value.w = (float)((rgba >> IM_COL32_A_SHIFT) & 0xFF) * sc; }
+    inline operator ImU32() const                                   { return ImGui::ColorConvertFloat4ToU32(Value); }
+    inline operator ImVec4() const                                  { return Value; }
+
+    // FIXME-OBSOLETE: May need to obsolete/cleanup those helpers.
+    inline void    SetHSV(float h, float s, float v, float a = 1.0f){ ImGui::ColorConvertHSVtoRGB(h, s, v, Value.x, Value.y, Value.z); Value.w = a; }
+    static ImColor HSV(float h, float s, float v, float a = 1.0f)   { float r, g, b; ImGui::ColorConvertHSVtoRGB(h, s, v, r, g, b); return ImColor(r, g, b, a); }
+};
+
+//-----------------------------------------------------------------------------
+// [SECTION] Drawing API (ImDrawCmd, ImDrawIdx, ImDrawVert, ImDrawChannel, ImDrawListSplitter, ImDrawListFlags, ImDrawList, ImDrawData)
+// Hold a series of drawing commands. The user provides a renderer for ImDrawData which essentially contains an array of ImDrawList.
+//-----------------------------------------------------------------------------
+
+// The maximum line width to bake anti-aliased textures for. Build atlas with ImFontAtlasFlags_NoBakedLines to disable baking.
+#ifndef IM_DRAWLIST_TEX_LINES_WIDTH_MAX
+#define IM_DRAWLIST_TEX_LINES_WIDTH_MAX     (63)
+#endif
+
+// ImDrawCallback: Draw callbacks for advanced uses [configurable type: override in imconfig.h]
+// NB: You most likely do NOT need to use draw callbacks just to create your own widget or customized UI rendering,
+// you can poke into the draw list for that! Draw callback may be useful for example to:
+//  A) Change your GPU render state,
+//  B) render a complex 3D scene inside a UI element without an intermediate texture/render target, etc.
+// The expected behavior from your rendering function is 'if (cmd.UserCallback != NULL) { cmd.UserCallback(parent_list, cmd); } else { RenderTriangles() }'
+// If you want to override the signature of ImDrawCallback, you can simply use e.g. '#define ImDrawCallback MyDrawCallback' (in imconfig.h) + update rendering backend accordingly.
+#ifndef ImDrawCallback
+typedef void (*ImDrawCallback)(const ImDrawList* parent_list, const ImDrawCmd* cmd);
+#endif
+
+// Special Draw callback value to request renderer backend to reset the graphics/render state.
+// The renderer backend needs to handle this special value, otherwise it will crash trying to call a function at this address.
+// This is useful for example if you submitted callbacks which you know have altered the render state and you want it to be restored.
+// It is not done by default because they are many perfectly useful way of altering render state for imgui contents (e.g. changing shader/blending settings before an Image call).
+#define ImDrawCallback_ResetRenderState     (ImDrawCallback)(-1)
+
+// Typically, 1 command = 1 GPU draw call (unless command is a callback)
+// - VtxOffset: When 'io.BackendFlags & ImGuiBackendFlags_RendererHasVtxOffset' is enabled,
+//   this fields allow us to render meshes larger than 64K vertices while keeping 16-bit indices.
+//   Backends made for <1.71. will typically ignore the VtxOffset fields.
+// - The ClipRect/TextureId/VtxOffset fields must be contiguous as we memcmp() them together (this is asserted for).
+struct ImDrawCmd
+{
+    ImVec4          ClipRect;           // 4*4  // Clipping rectangle (x1, y1, x2, y2). Subtract ImDrawData->DisplayPos to get clipping rectangle in "viewport" coordinates
+    ImTextureID     TextureId;          // 4-8  // User-provided texture ID. Set by user in ImfontAtlas::SetTexID() for fonts or passed to Image*() functions. Ignore if never using images or multiple fonts atlas.
+    unsigned int    VtxOffset;          // 4    // Start offset in vertex buffer. ImGuiBackendFlags_RendererHasVtxOffset: always 0, otherwise may be >0 to support meshes larger than 64K vertices with 16-bit indices.
+    unsigned int    IdxOffset;          // 4    // Start offset in index buffer.
+    unsigned int    ElemCount;          // 4    // Number of indices (multiple of 3) to be rendered as triangles. Vertices are stored in the callee ImDrawList's vtx_buffer[] array, indices in idx_buffer[].
+    ImDrawCallback  UserCallback;       // 4-8  // If != NULL, call the function instead of rendering the vertices. clip_rect and texture_id will be set normally.
+    void*           UserCallbackData;   // 4-8  // The draw callback code can access this.
+
+    ImDrawCmd() { memset(this, 0, sizeof(*this)); } // Also ensure our padding fields are zeroed
+
+    // Since 1.83: returns ImTextureID associated with this draw call. Warning: DO NOT assume this is always same as 'TextureId' (we will change this function for an upcoming feature)
+    inline ImTextureID GetTexID() const { return TextureId; }
+};
+
+// Vertex layout
+#ifndef IMGUI_OVERRIDE_DRAWVERT_STRUCT_LAYOUT
+struct ImDrawVert
+{
+    ImVec2  pos;
+    ImVec2  uv;
+    ImU32   col;
+};
+#else
+// You can override the vertex format layout by defining IMGUI_OVERRIDE_DRAWVERT_STRUCT_LAYOUT in imconfig.h
+// The code expect ImVec2 pos (8 bytes), ImVec2 uv (8 bytes), ImU32 col (4 bytes), but you can re-order them or add other fields as needed to simplify integration in your engine.
+// The type has to be described within the macro (you can either declare the struct or use a typedef). This is because ImVec2/ImU32 are likely not declared a the time you'd want to set your type up.
+// NOTE: IMGUI DOESN'T CLEAR THE STRUCTURE AND DOESN'T CALL A CONSTRUCTOR SO ANY CUSTOM FIELD WILL BE UNINITIALIZED. IF YOU ADD EXTRA FIELDS (SUCH AS A 'Z' COORDINATES) YOU WILL NEED TO CLEAR THEM DURING RENDER OR TO IGNORE THEM.
+IMGUI_OVERRIDE_DRAWVERT_STRUCT_LAYOUT;
+#endif
+
+// [Internal] For use by ImDrawList
+struct ImDrawCmdHeader
+{
+    ImVec4          ClipRect;
+    ImTextureID     TextureId;
+    unsigned int    VtxOffset;
+};
+
+// [Internal] For use by ImDrawListSplitter
+struct ImDrawChannel
+{
+    ImVector<ImDrawCmd>         _CmdBuffer;
+    ImVector<ImDrawIdx>         _IdxBuffer;
+};
+
+
+// Split/Merge functions are used to split the draw list into different layers which can be drawn into out of order.
+// This is used by the Columns/Tables API, so items of each column can be batched together in a same draw call.
+struct ImDrawListSplitter
+{
+    int                         _Current;    // Current channel number (0)
+    int                         _Count;      // Number of active channels (1+)
+    ImVector<ImDrawChannel>     _Channels;   // Draw channels (not resized down so _Count might be < Channels.Size)
+
+    inline ImDrawListSplitter()  { memset(this, 0, sizeof(*this)); }
+    inline ~ImDrawListSplitter() { ClearFreeMemory(); }
+    inline void                 Clear() { _Current = 0; _Count = 1; } // Do not clear Channels[] so our allocations are reused next frame
+    IMGUI_API void              ClearFreeMemory();
+    IMGUI_API void              Split(ImDrawList* draw_list, int count);
+    IMGUI_API void              Merge(ImDrawList* draw_list);
+    IMGUI_API void              SetCurrentChannel(ImDrawList* draw_list, int channel_idx);
+};
+
+// Flags for ImDrawList functions
+// (Legacy: bit 0 must always correspond to ImDrawFlags_Closed to be backward compatible with old API using a bool. Bits 1..3 must be unused)
+enum ImDrawFlags_
+{
+    ImDrawFlags_None                        = 0,
+    ImDrawFlags_Closed                      = 1 << 0, // PathStroke(), AddPolyline(): specify that shape should be closed (Important: this is always == 1 for legacy reason)
+    ImDrawFlags_RoundCornersTopLeft         = 1 << 4, // AddRect(), AddRectFilled(), PathRect(): enable rounding top-left corner only (when rounding > 0.0f, we default to all corners). Was 0x01.
+    ImDrawFlags_RoundCornersTopRight        = 1 << 5, // AddRect(), AddRectFilled(), PathRect(): enable rounding top-right corner only (when rounding > 0.0f, we default to all corners). Was 0x02.
+    ImDrawFlags_RoundCornersBottomLeft      = 1 << 6, // AddRect(), AddRectFilled(), PathRect(): enable rounding bottom-left corner only (when rounding > 0.0f, we default to all corners). Was 0x04.
+    ImDrawFlags_RoundCornersBottomRight     = 1 << 7, // AddRect(), AddRectFilled(), PathRect(): enable rounding bottom-right corner only (when rounding > 0.0f, we default to all corners). Wax 0x08.
+    ImDrawFlags_RoundCornersNone            = 1 << 8, // AddRect(), AddRectFilled(), PathRect(): disable rounding on all corners (when rounding > 0.0f). This is NOT zero, NOT an implicit flag!
+    ImDrawFlags_RoundCornersTop             = ImDrawFlags_RoundCornersTopLeft | ImDrawFlags_RoundCornersTopRight,
+    ImDrawFlags_RoundCornersBottom          = ImDrawFlags_RoundCornersBottomLeft | ImDrawFlags_RoundCornersBottomRight,
+    ImDrawFlags_RoundCornersLeft            = ImDrawFlags_RoundCornersBottomLeft | ImDrawFlags_RoundCornersTopLeft,
+    ImDrawFlags_RoundCornersRight           = ImDrawFlags_RoundCornersBottomRight | ImDrawFlags_RoundCornersTopRight,
+    ImDrawFlags_RoundCornersAll             = ImDrawFlags_RoundCornersTopLeft | ImDrawFlags_RoundCornersTopRight | ImDrawFlags_RoundCornersBottomLeft | ImDrawFlags_RoundCornersBottomRight,
+    ImDrawFlags_RoundCornersDefault_        = ImDrawFlags_RoundCornersAll, // Default to ALL corners if none of the _RoundCornersXX flags are specified.
+    ImDrawFlags_RoundCornersMask_           = ImDrawFlags_RoundCornersAll | ImDrawFlags_RoundCornersNone
+};
+
+// Flags for ImDrawList instance. Those are set automatically by ImGui:: functions from ImGuiIO settings, and generally not manipulated directly.
+// It is however possible to temporarily alter flags between calls to ImDrawList:: functions.
+enum ImDrawListFlags_
+{
+    ImDrawListFlags_None                    = 0,
+    ImDrawListFlags_AntiAliasedLines        = 1 << 0,  // Enable anti-aliased lines/borders (*2 the number of triangles for 1.0f wide line or lines thin enough to be drawn using textures, otherwise *3 the number of triangles)
+    ImDrawListFlags_AntiAliasedLinesUseTex  = 1 << 1,  // Enable anti-aliased lines/borders using textures when possible. Require backend to render with bilinear filtering (NOT point/nearest filtering).
+    ImDrawListFlags_AntiAliasedFill         = 1 << 2,  // Enable anti-aliased edge around filled shapes (rounded rectangles, circles).
+    ImDrawListFlags_AllowVtxOffset          = 1 << 3   // Can emit 'VtxOffset > 0' to allow large meshes. Set when 'ImGuiBackendFlags_RendererHasVtxOffset' is enabled.
+};
+
+// Draw command list
+// This is the low-level list of polygons that ImGui:: functions are filling. At the end of the frame,
+// all command lists are passed to your ImGuiIO::RenderDrawListFn function for rendering.
+// Each dear imgui window contains its own ImDrawList. You can use ImGui::GetWindowDrawList() to
+// access the current window draw list and draw custom primitives.
+// You can interleave normal ImGui:: calls and adding primitives to the current draw list.
+// In single viewport mode, top-left is == GetMainViewport()->Pos (generally 0,0), bottom-right is == GetMainViewport()->Pos+Size (generally io.DisplaySize).
+// You are totally free to apply whatever transformation matrix to want to the data (depending on the use of the transformation you may want to apply it to ClipRect as well!)
+// Important: Primitives are always added to the list and not culled (culling is done at higher-level by ImGui:: functions), if you use this API a lot consider coarse culling your drawn objects.
+struct ImDrawList
+{
+    // This is what you have to render
+    ImVector<ImDrawCmd>     CmdBuffer;          // Draw commands. Typically 1 command = 1 GPU draw call, unless the command is a callback.
+    ImVector<ImDrawIdx>     IdxBuffer;          // Index buffer. Each command consume ImDrawCmd::ElemCount of those
+    ImVector<ImDrawVert>    VtxBuffer;          // Vertex buffer.
+    ImDrawListFlags         Flags;              // Flags, you may poke into these to adjust anti-aliasing settings per-primitive.
+
+    // [Internal, used while building lists]
+    unsigned int            _VtxCurrentIdx;     // [Internal] generally == VtxBuffer.Size unless we are past 64K vertices, in which case this gets reset to 0.
+    const ImDrawListSharedData* _Data;          // Pointer to shared draw data (you can use ImGui::GetDrawListSharedData() to get the one from current ImGui context)
+    const char*             _OwnerName;         // Pointer to owner window's name for debugging
+    ImDrawVert*             _VtxWritePtr;       // [Internal] point within VtxBuffer.Data after each add command (to avoid using the ImVector<> operators too much)
+    ImDrawIdx*              _IdxWritePtr;       // [Internal] point within IdxBuffer.Data after each add command (to avoid using the ImVector<> operators too much)
+    ImVector<ImVec4>        _ClipRectStack;     // [Internal]
+    ImVector<ImTextureID>   _TextureIdStack;    // [Internal]
+    ImVector<ImVec2>        _Path;              // [Internal] current path building
+    ImDrawCmdHeader         _CmdHeader;         // [Internal] template of active commands. Fields should match those of CmdBuffer.back().
+    ImDrawListSplitter      _Splitter;          // [Internal] for channels api (note: prefer using your own persistent instance of ImDrawListSplitter!)
+    float                   _FringeScale;       // [Internal] anti-alias fringe is scaled by this value, this helps to keep things sharp while zooming at vertex buffer content
+
+    // If you want to create ImDrawList instances, pass them ImGui::GetDrawListSharedData() or create and use your own ImDrawListSharedData (so you can use ImDrawList without ImGui)
+    ImDrawList(const ImDrawListSharedData* shared_data) { memset(this, 0, sizeof(*this)); _Data = shared_data; }
+
+    ~ImDrawList() { _ClearFreeMemory(); }
+    IMGUI_API void  PushClipRect(const ImVec2& clip_rect_min, const ImVec2& clip_rect_max, bool intersect_with_current_clip_rect = false);  // Render-level scissoring. This is passed down to your render function but not used for CPU-side coarse clipping. Prefer using higher-level ImGui::PushClipRect() to affect logic (hit-testing and widget culling)
+    IMGUI_API void  PushClipRectFullScreen();
+    IMGUI_API void  PopClipRect();
+    IMGUI_API void  PushTextureID(ImTextureID texture_id);
+    IMGUI_API void  PopTextureID();
+    inline ImVec2   GetClipRectMin() const { const ImVec4& cr = _ClipRectStack.back(); return ImVec2(cr.x, cr.y); }
+    inline ImVec2   GetClipRectMax() const { const ImVec4& cr = _ClipRectStack.back(); return ImVec2(cr.z, cr.w); }
+
+    // Primitives
+    // - Filled shapes must always use clockwise winding order. The anti-aliasing fringe depends on it. Counter-clockwise shapes will have "inward" anti-aliasing.
+    // - For rectangular primitives, "p_min" and "p_max" represent the upper-left and lower-right corners.
+    // - For circle primitives, use "num_segments == 0" to automatically calculate tessellation (preferred).
+    //   In older versions (until Dear ImGui 1.77) the AddCircle functions defaulted to num_segments == 12.
+    //   In future versions we will use textures to provide cheaper and higher-quality circles.
+    //   Use AddNgon() and AddNgonFilled() functions if you need to guaranteed a specific number of sides.
+    IMGUI_API void  AddLine(const ImVec2& p1, const ImVec2& p2, ImU32 col, float thickness = 1.0f);
+    IMGUI_API void  AddRect(const ImVec2& p_min, const ImVec2& p_max, ImU32 col, float rounding = 0.0f, ImDrawFlags flags = 0, float thickness = 1.0f);   // a: upper-left, b: lower-right (== upper-left + size)
+    IMGUI_API void  AddRectFilled(const ImVec2& p_min, const ImVec2& p_max, ImU32 col, float rounding = 0.0f, ImDrawFlags flags = 0);                     // a: upper-left, b: lower-right (== upper-left + size)
+    IMGUI_API void  AddRectFilledMultiColor(const ImVec2& p_min, const ImVec2& p_max, ImU32 col_upr_left, ImU32 col_upr_right, ImU32 col_bot_right, ImU32 col_bot_left);
+    IMGUI_API void  AddQuad(const ImVec2& p1, const ImVec2& p2, const ImVec2& p3, const ImVec2& p4, ImU32 col, float thickness = 1.0f);
+    IMGUI_API void  AddQuadFilled(const ImVec2& p1, const ImVec2& p2, const ImVec2& p3, const ImVec2& p4, ImU32 col);
+    IMGUI_API void  AddTriangle(const ImVec2& p1, const ImVec2& p2, const ImVec2& p3, ImU32 col, float thickness = 1.0f);
+    IMGUI_API void  AddTriangleFilled(const ImVec2& p1, const ImVec2& p2, const ImVec2& p3, ImU32 col);
+    IMGUI_API void  AddCircle(const ImVec2& center, float radius, ImU32 col, int num_segments = 0, float thickness = 1.0f);
+    IMGUI_API void  AddCircleFilled(const ImVec2& center, float radius, ImU32 col, int num_segments = 0);
+    IMGUI_API void  AddNgon(const ImVec2& center, float radius, ImU32 col, int num_segments, float thickness = 1.0f);
+    IMGUI_API void  AddNgonFilled(const ImVec2& center, float radius, ImU32 col, int num_segments);
+    IMGUI_API void  AddText(const ImVec2& pos, ImU32 col, const char* text_begin, const char* text_end = NULL);
+    IMGUI_API void  AddText(const ImFont* font, float font_size, const ImVec2& pos, ImU32 col, const char* text_begin, const char* text_end = NULL, float wrap_width = 0.0f, const ImVec4* cpu_fine_clip_rect = NULL);
+    IMGUI_API void  AddPolyline(const ImVec2* points, int num_points, ImU32 col, ImDrawFlags flags, float thickness);
+    IMGUI_API void  AddConvexPolyFilled(const ImVec2* points, int num_points, ImU32 col);
+    IMGUI_API void  AddBezierCubic(const ImVec2& p1, const ImVec2& p2, const ImVec2& p3, const ImVec2& p4, ImU32 col, float thickness, int num_segments = 0); // Cubic Bezier (4 control points)
+    IMGUI_API void  AddBezierQuadratic(const ImVec2& p1, const ImVec2& p2, const ImVec2& p3, ImU32 col, float thickness, int num_segments = 0);               // Quadratic Bezier (3 control points)
+
+    // Image primitives
+    // - Read FAQ to understand what ImTextureID is.
+    // - "p_min" and "p_max" represent the upper-left and lower-right corners of the rectangle.
+    // - "uv_min" and "uv_max" represent the normalized texture coordinates to use for those corners. Using (0,0)->(1,1) texture coordinates will generally display the entire texture.
+    IMGUI_API void  AddImage(ImTextureID user_texture_id, const ImVec2& p_min, const ImVec2& p_max, const ImVec2& uv_min = ImVec2(0, 0), const ImVec2& uv_max = ImVec2(1, 1), ImU32 col = IM_COL32_WHITE);
+    IMGUI_API void  AddImageQuad(ImTextureID user_texture_id, const ImVec2& p1, const ImVec2& p2, const ImVec2& p3, const ImVec2& p4, const ImVec2& uv1 = ImVec2(0, 0), const ImVec2& uv2 = ImVec2(1, 0), const ImVec2& uv3 = ImVec2(1, 1), const ImVec2& uv4 = ImVec2(0, 1), ImU32 col = IM_COL32_WHITE);
+    IMGUI_API void  AddImageRounded(ImTextureID user_texture_id, const ImVec2& p_min, const ImVec2& p_max, const ImVec2& uv_min, const ImVec2& uv_max, ImU32 col, float rounding, ImDrawFlags flags = 0);
+
+    // Stateful path API, add points then finish with PathFillConvex() or PathStroke()
+    // - Filled shapes must always use clockwise winding order. The anti-aliasing fringe depends on it. Counter-clockwise shapes will have "inward" anti-aliasing.
+    inline    void  PathClear()                                                 { _Path.Size = 0; }
+    inline    void  PathLineTo(const ImVec2& pos)                               { _Path.push_back(pos); }
+    inline    void  PathLineToMergeDuplicate(const ImVec2& pos)                 { if (_Path.Size == 0 || memcmp(&_Path.Data[_Path.Size - 1], &pos, 8) != 0) _Path.push_back(pos); }
+    inline    void  PathFillConvex(ImU32 col)                                   { AddConvexPolyFilled(_Path.Data, _Path.Size, col); _Path.Size = 0; }
+    inline    void  PathStroke(ImU32 col, ImDrawFlags flags = 0, float thickness = 1.0f) { AddPolyline(_Path.Data, _Path.Size, col, flags, thickness); _Path.Size = 0; }
+    IMGUI_API void  PathArcTo(const ImVec2& center, float radius, float a_min, float a_max, int num_segments = 0);
+    IMGUI_API void  PathArcToFast(const ImVec2& center, float radius, int a_min_of_12, int a_max_of_12);                // Use precomputed angles for a 12 steps circle
+    IMGUI_API void  PathBezierCubicCurveTo(const ImVec2& p2, const ImVec2& p3, const ImVec2& p4, int num_segments = 0); // Cubic Bezier (4 control points)
+    IMGUI_API void  PathBezierQuadraticCurveTo(const ImVec2& p2, const ImVec2& p3, int num_segments = 0);               // Quadratic Bezier (3 control points)
+    IMGUI_API void  PathRect(const ImVec2& rect_min, const ImVec2& rect_max, float rounding = 0.0f, ImDrawFlags flags = 0);
+
+    // Advanced
+    IMGUI_API void  AddCallback(ImDrawCallback callback, void* callback_data);  // Your rendering function must check for 'UserCallback' in ImDrawCmd and call the function instead of rendering triangles.
+    IMGUI_API void  AddDrawCmd();                                               // This is useful if you need to forcefully create a new draw call (to allow for dependent rendering / blending). Otherwise primitives are merged into the same draw-call as much as possible
+    IMGUI_API ImDrawList* CloneOutput() const;                                  // Create a clone of the CmdBuffer/IdxBuffer/VtxBuffer.
+
+    // Advanced: Channels
+    // - Use to split render into layers. By switching channels to can render out-of-order (e.g. submit FG primitives before BG primitives)
+    // - Use to minimize draw calls (e.g. if going back-and-forth between multiple clipping rectangles, prefer to append into separate channels then merge at the end)
+    // - FIXME-OBSOLETE: This API shouldn't have been in ImDrawList in the first place!
+    //   Prefer using your own persistent instance of ImDrawListSplitter as you can stack them.
+    //   Using the ImDrawList::ChannelsXXXX you cannot stack a split over another.
+    inline void     ChannelsSplit(int count)    { _Splitter.Split(this, count); }
+    inline void     ChannelsMerge()             { _Splitter.Merge(this); }
+    inline void     ChannelsSetCurrent(int n)   { _Splitter.SetCurrentChannel(this, n); }
+
+    // Advanced: Primitives allocations
+    // - We render triangles (three vertices)
+    // - All primitives needs to be reserved via PrimReserve() beforehand.
+    IMGUI_API void  PrimReserve(int idx_count, int vtx_count);
+    IMGUI_API void  PrimUnreserve(int idx_count, int vtx_count);
+    IMGUI_API void  PrimRect(const ImVec2& a, const ImVec2& b, ImU32 col);      // Axis aligned rectangle (composed of two triangles)
+    IMGUI_API void  PrimRectUV(const ImVec2& a, const ImVec2& b, const ImVec2& uv_a, const ImVec2& uv_b, ImU32 col);
+    IMGUI_API void  PrimQuadUV(const ImVec2& a, const ImVec2& b, const ImVec2& c, const ImVec2& d, const ImVec2& uv_a, const ImVec2& uv_b, const ImVec2& uv_c, const ImVec2& uv_d, ImU32 col);
+    inline    void  PrimWriteVtx(const ImVec2& pos, const ImVec2& uv, ImU32 col)    { _VtxWritePtr->pos = pos; _VtxWritePtr->uv = uv; _VtxWritePtr->col = col; _VtxWritePtr++; _VtxCurrentIdx++; }
+    inline    void  PrimWriteIdx(ImDrawIdx idx)                                     { *_IdxWritePtr = idx; _IdxWritePtr++; }
+    inline    void  PrimVtx(const ImVec2& pos, const ImVec2& uv, ImU32 col)         { PrimWriteIdx((ImDrawIdx)_VtxCurrentIdx); PrimWriteVtx(pos, uv, col); } // Write vertex with unique index
+
+#ifndef IMGUI_DISABLE_OBSOLETE_FUNCTIONS
+    inline    void  AddBezierCurve(const ImVec2& p1, const ImVec2& p2, const ImVec2& p3, const ImVec2& p4, ImU32 col, float thickness, int num_segments = 0) { AddBezierCubic(p1, p2, p3, p4, col, thickness, num_segments); } // OBSOLETED in 1.80 (Jan 2021)
+    inline    void  PathBezierCurveTo(const ImVec2& p2, const ImVec2& p3, const ImVec2& p4, int num_segments = 0) { PathBezierCubicCurveTo(p2, p3, p4, num_segments); } // OBSOLETED in 1.80 (Jan 2021)
+#endif
+
+    // [Internal helpers]
+    IMGUI_API void  _ResetForNewFrame();
+    IMGUI_API void  _ClearFreeMemory();
+    IMGUI_API void  _PopUnusedDrawCmd();
+    IMGUI_API void  _TryMergeDrawCmds();
+    IMGUI_API void  _OnChangedClipRect();
+    IMGUI_API void  _OnChangedTextureID();
+    IMGUI_API void  _OnChangedVtxOffset();
+    IMGUI_API int   _CalcCircleAutoSegmentCount(float radius) const;
+    IMGUI_API void  _PathArcToFastEx(const ImVec2& center, float radius, int a_min_sample, int a_max_sample, int a_step);
+    IMGUI_API void  _PathArcToN(const ImVec2& center, float radius, float a_min, float a_max, int num_segments);
+};
+
+// All draw data to render a Dear ImGui frame
+// (NB: the style and the naming convention here is a little inconsistent, we currently preserve them for backward compatibility purpose,
+// as this is one of the oldest structure exposed by the library! Basically, ImDrawList == CmdList)
+struct ImDrawData
+{
+    bool            Valid;                  // Only valid after Render() is called and before the next NewFrame() is called.
+    int             CmdListsCount;          // Number of ImDrawList* to render
+    int             TotalIdxCount;          // For convenience, sum of all ImDrawList's IdxBuffer.Size
+    int             TotalVtxCount;          // For convenience, sum of all ImDrawList's VtxBuffer.Size
+    ImDrawList**    CmdLists;               // Array of ImDrawList* to render. The ImDrawList are owned by ImGuiContext and only pointed to from here.
+    ImVec2          DisplayPos;             // Top-left position of the viewport to render (== top-left of the orthogonal projection matrix to use) (== GetMainViewport()->Pos for the main viewport, == (0.0) in most single-viewport applications)
+    ImVec2          DisplaySize;            // Size of the viewport to render (== GetMainViewport()->Size for the main viewport, == io.DisplaySize in most single-viewport applications)
+    ImVec2          FramebufferScale;       // Amount of pixels for each unit of DisplaySize. Based on io.DisplayFramebufferScale. Generally (1,1) on normal display, (2,2) on OSX with Retina display.
+
+    // Functions
+    ImDrawData()    { Clear(); }
+    void Clear()    { memset(this, 0, sizeof(*this)); }     // The ImDrawList are owned by ImGuiContext!
+    IMGUI_API void  DeIndexAllBuffers();                    // Helper to convert all buffers from indexed to non-indexed, in case you cannot render indexed. Note: this is slow and most likely a waste of resources. Always prefer indexed rendering!
+    IMGUI_API void  ScaleClipRects(const ImVec2& fb_scale); // Helper to scale the ClipRect field of each ImDrawCmd. Use if your final output buffer is at a different scale than Dear ImGui expects, or if there is a difference between your window resolution and framebuffer resolution.
+};
+
+//-----------------------------------------------------------------------------
+// [SECTION] Font API (ImFontConfig, ImFontGlyph, ImFontAtlasFlags, ImFontAtlas, ImFontGlyphRangesBuilder, ImFont)
+//-----------------------------------------------------------------------------
+
+struct ImFontConfig
+{
+    void*           FontData;               //          // TTF/OTF data
+    int             FontDataSize;           //          // TTF/OTF data size
+    bool            FontDataOwnedByAtlas;   // true     // TTF/OTF data ownership taken by the container ImFontAtlas (will delete memory itself).
+    int             FontNo;                 // 0        // Index of font within TTF/OTF file
+    float           SizePixels;             //          // Size in pixels for rasterizer (more or less maps to the resulting font height).
+    int             OversampleH;            // 3        // Rasterize at higher quality for sub-pixel positioning. Note the difference between 2 and 3 is minimal so you can reduce this to 2 to save memory. Read https://github.com/nothings/stb/blob/master/tests/oversample/README.md for details.
+    int             OversampleV;            // 1        // Rasterize at higher quality for sub-pixel positioning. This is not really useful as we don't use sub-pixel positions on the Y axis.
+    bool            PixelSnapH;             // false    // Align every glyph to pixel boundary. Useful e.g. if you are merging a non-pixel aligned font with the default font. If enabled, you can set OversampleH/V to 1.
+    ImVec2          GlyphExtraSpacing;      // 0, 0     // Extra spacing (in pixels) between glyphs. Only X axis is supported for now.
+    ImVec2          GlyphOffset;            // 0, 0     // Offset all glyphs from this font input.
+    const ImWchar*  GlyphRanges;            // NULL     // Pointer to a user-provided list of Unicode range (2 value per range, values are inclusive, zero-terminated list). THE ARRAY DATA NEEDS TO PERSIST AS LONG AS THE FONT IS ALIVE.
+    float           GlyphMinAdvanceX;       // 0        // Minimum AdvanceX for glyphs, set Min to align font icons, set both Min/Max to enforce mono-space font
+    float           GlyphMaxAdvanceX;       // FLT_MAX  // Maximum AdvanceX for glyphs
+    bool            MergeMode;              // false    // Merge into previous ImFont, so you can combine multiple inputs font into one ImFont (e.g. ASCII font + icons + Japanese glyphs). You may want to use GlyphOffset.y when merge font of different heights.
+    unsigned int    FontBuilderFlags;       // 0        // Settings for custom font builder. THIS IS BUILDER IMPLEMENTATION DEPENDENT. Leave as zero if unsure.
+    float           RasterizerMultiply;     // 1.0f     // Brighten (>1.0f) or darken (<1.0f) font output. Brightening small fonts may be a good workaround to make them more readable.
+    ImWchar         EllipsisChar;           // -1       // Explicitly specify unicode codepoint of ellipsis character. When fonts are being merged first specified ellipsis will be used.
+
+    // [Internal]
+    char            Name[40];               // Name (strictly to ease debugging)
+    ImFont*         DstFont;
+
+    IMGUI_API ImFontConfig();
+};
+
+// Hold rendering data for one glyph.
+// (Note: some language parsers may fail to convert the 31+1 bitfield members, in this case maybe drop store a single u32 or we can rework this)
+struct ImFontGlyph
+{
+    unsigned int    Colored : 1;        // Flag to indicate glyph is colored and should generally ignore tinting (make it usable with no shift on little-endian as this is used in loops)
+    unsigned int    Visible : 1;        // Flag to indicate glyph has no visible pixels (e.g. space). Allow early out when rendering.
+    unsigned int    Codepoint : 30;     // 0x0000..0x10FFFF
+    float           AdvanceX;           // Distance to next character (= data from font + ImFontConfig::GlyphExtraSpacing.x baked in)
+    float           X0, Y0, X1, Y1;     // Glyph corners
+    float           U0, V0, U1, V1;     // Texture coordinates
+};
+
+// Helper to build glyph ranges from text/string data. Feed your application strings/characters to it then call BuildRanges().
+// This is essentially a tightly packed of vector of 64k booleans = 8KB storage.
+struct ImFontGlyphRangesBuilder
+{
+    ImVector<ImU32> UsedChars;            // Store 1-bit per Unicode code point (0=unused, 1=used)
+
+    ImFontGlyphRangesBuilder()              { Clear(); }
+    inline void     Clear()                 { int size_in_bytes = (IM_UNICODE_CODEPOINT_MAX + 1) / 8; UsedChars.resize(size_in_bytes / (int)sizeof(ImU32)); memset(UsedChars.Data, 0, (size_t)size_in_bytes); }
+    inline bool     GetBit(size_t n) const  { int off = (int)(n >> 5); ImU32 mask = 1u << (n & 31); return (UsedChars[off] & mask) != 0; }  // Get bit n in the array
+    inline void     SetBit(size_t n)        { int off = (int)(n >> 5); ImU32 mask = 1u << (n & 31); UsedChars[off] |= mask; }               // Set bit n in the array
+    inline void     AddChar(ImWchar c)      { SetBit(c); }                      // Add character
+    IMGUI_API void  AddText(const char* text, const char* text_end = NULL);     // Add string (each character of the UTF-8 string are added)
+    IMGUI_API void  AddRanges(const ImWchar* ranges);                           // Add ranges, e.g. builder.AddRanges(ImFontAtlas::GetGlyphRangesDefault()) to force add all of ASCII/Latin+Ext
+    IMGUI_API void  BuildRanges(ImVector<ImWchar>* out_ranges);                 // Output new ranges
+};
+
+// See ImFontAtlas::AddCustomRectXXX functions.
+struct ImFontAtlasCustomRect
+{
+    unsigned short  Width, Height;  // Input    // Desired rectangle dimension
+    unsigned short  X, Y;           // Output   // Packed position in Atlas
+    unsigned int    GlyphID;        // Input    // For custom font glyphs only (ID < 0x110000)
+    float           GlyphAdvanceX;  // Input    // For custom font glyphs only: glyph xadvance
+    ImVec2          GlyphOffset;    // Input    // For custom font glyphs only: glyph display offset
+    ImFont*         Font;           // Input    // For custom font glyphs only: target font
+    ImFontAtlasCustomRect()         { Width = Height = 0; X = Y = 0xFFFF; GlyphID = 0; GlyphAdvanceX = 0.0f; GlyphOffset = ImVec2(0, 0); Font = NULL; }
+    bool IsPacked() const           { return X != 0xFFFF; }
+};
+
+// Flags for ImFontAtlas build
+enum ImFontAtlasFlags_
+{
+    ImFontAtlasFlags_None               = 0,
+    ImFontAtlasFlags_NoPowerOfTwoHeight = 1 << 0,   // Don't round the height to next power of two
+    ImFontAtlasFlags_NoMouseCursors     = 1 << 1,   // Don't build software mouse cursors into the atlas (save a little texture memory)
+    ImFontAtlasFlags_NoBakedLines       = 1 << 2    // Don't build thick line textures into the atlas (save a little texture memory, allow support for point/nearest filtering). The AntiAliasedLinesUseTex features uses them, otherwise they will be rendered using polygons (more expensive for CPU/GPU).
+};
+
+// Load and rasterize multiple TTF/OTF fonts into a same texture. The font atlas will build a single texture holding:
+//  - One or more fonts.
+//  - Custom graphics data needed to render the shapes needed by Dear ImGui.
+//  - Mouse cursor shapes for software cursor rendering (unless setting 'Flags |= ImFontAtlasFlags_NoMouseCursors' in the font atlas).
+// It is the user-code responsibility to setup/build the atlas, then upload the pixel data into a texture accessible by your graphics api.
+//  - Optionally, call any of the AddFont*** functions. If you don't call any, the default font embedded in the code will be loaded for you.
+//  - Call GetTexDataAsAlpha8() or GetTexDataAsRGBA32() to build and retrieve pixels data.
+//  - Upload the pixels data into a texture within your graphics system (see imgui_impl_xxxx.cpp examples)
+//  - Call SetTexID(my_tex_id); and pass the pointer/identifier to your texture in a format natural to your graphics API.
+//    This value will be passed back to you during rendering to identify the texture. Read FAQ entry about ImTextureID for more details.
+// Common pitfalls:
+// - If you pass a 'glyph_ranges' array to AddFont*** functions, you need to make sure that your array persist up until the
+//   atlas is build (when calling GetTexData*** or Build()). We only copy the pointer, not the data.
+// - Important: By default, AddFontFromMemoryTTF() takes ownership of the data. Even though we are not writing to it, we will free the pointer on destruction.
+//   You can set font_cfg->FontDataOwnedByAtlas=false to keep ownership of your data and it won't be freed,
+// - Even though many functions are suffixed with "TTF", OTF data is supported just as well.
+// - This is an old API and it is currently awkward for those and and various other reasons! We will address them in the future!
+struct ImFontAtlas
+{
+    IMGUI_API ImFontAtlas();
+    IMGUI_API ~ImFontAtlas();
+    IMGUI_API ImFont*           AddFont(const ImFontConfig* font_cfg);
+    IMGUI_API ImFont*           AddFontDefault(const ImFontConfig* font_cfg = NULL);
+    IMGUI_API ImFont*           AddFontFromFileTTF(const char* filename, float size_pixels, const ImFontConfig* font_cfg = NULL, const ImWchar* glyph_ranges = NULL);
+    IMGUI_API ImFont*           AddFontFromMemoryTTF(void* font_data, int font_size, float size_pixels, const ImFontConfig* font_cfg = NULL, const ImWchar* glyph_ranges = NULL); // Note: Transfer ownership of 'ttf_data' to ImFontAtlas! Will be deleted after destruction of the atlas. Set font_cfg->FontDataOwnedByAtlas=false to keep ownership of your data and it won't be freed.
+    IMGUI_API ImFont*           AddFontFromMemoryCompressedTTF(const void* compressed_font_data, int compressed_font_size, float size_pixels, const ImFontConfig* font_cfg = NULL, const ImWchar* glyph_ranges = NULL); // 'compressed_font_data' still owned by caller. Compress with binary_to_compressed_c.cpp.
+    IMGUI_API ImFont*           AddFontFromMemoryCompressedBase85TTF(const char* compressed_font_data_base85, float size_pixels, const ImFontConfig* font_cfg = NULL, const ImWchar* glyph_ranges = NULL);              // 'compressed_font_data_base85' still owned by caller. Compress with binary_to_compressed_c.cpp with -base85 parameter.
+    IMGUI_API void              ClearInputData();           // Clear input data (all ImFontConfig structures including sizes, TTF data, glyph ranges, etc.) = all the data used to build the texture and fonts.
+    IMGUI_API void              ClearTexData();             // Clear output texture data (CPU side). Saves RAM once the texture has been copied to graphics memory.
+    IMGUI_API void              ClearFonts();               // Clear output font data (glyphs storage, UV coordinates).
+    IMGUI_API void              Clear();                    // Clear all input and output.
+
+    // Build atlas, retrieve pixel data.
+    // User is in charge of copying the pixels into graphics memory (e.g. create a texture with your engine). Then store your texture handle with SetTexID().
+    // The pitch is always = Width * BytesPerPixels (1 or 4)
+    // Building in RGBA32 format is provided for convenience and compatibility, but note that unless you manually manipulate or copy color data into
+    // the texture (e.g. when using the AddCustomRect*** api), then the RGB pixels emitted will always be white (~75% of memory/bandwidth waste.
+    IMGUI_API bool              Build();                    // Build pixels data. This is called automatically for you by the GetTexData*** functions.
+    IMGUI_API void              GetTexDataAsAlpha8(unsigned char** out_pixels, int* out_width, int* out_height, int* out_bytes_per_pixel = NULL);  // 1 byte per-pixel
+    IMGUI_API void              GetTexDataAsRGBA32(unsigned char** out_pixels, int* out_width, int* out_height, int* out_bytes_per_pixel = NULL);  // 4 bytes-per-pixel
+    bool                        IsBuilt() const             { return Fonts.Size > 0 && TexReady; } // Bit ambiguous: used to detect when user didn't built texture but effectively we should check TexID != 0 except that would be backend dependent...
+    void                        SetTexID(ImTextureID id)    { TexID = id; }
+
+    //-------------------------------------------
+    // Glyph Ranges
+    //-------------------------------------------
+
+    // Helpers to retrieve list of common Unicode ranges (2 value per range, values are inclusive, zero-terminated list)
+    // NB: Make sure that your string are UTF-8 and NOT in your local code page. In C++11, you can create UTF-8 string literal using the u8"Hello world" syntax. See FAQ for details.
+    // NB: Consider using ImFontGlyphRangesBuilder to build glyph ranges from textual data.
+    IMGUI_API const ImWchar*    GetGlyphRangesDefault();                // Basic Latin, Extended Latin
+    IMGUI_API const ImWchar*    GetGlyphRangesKorean();                 // Default + Korean characters
+    IMGUI_API const ImWchar*    GetGlyphRangesJapanese();               // Default + Hiragana, Katakana, Half-Width, Selection of 2999 Ideographs
+    IMGUI_API const ImWchar*    GetGlyphRangesChineseFull();            // Default + Half-Width + Japanese Hiragana/Katakana + full set of about 21000 CJK Unified Ideographs
+    IMGUI_API const ImWchar*    GetGlyphRangesChineseSimplifiedCommon();// Default + Half-Width + Japanese Hiragana/Katakana + set of 2500 CJK Unified Ideographs for common simplified Chinese
+    IMGUI_API const ImWchar*    GetGlyphRangesCyrillic();               // Default + about 400 Cyrillic characters
+    IMGUI_API const ImWchar*    GetGlyphRangesThai();                   // Default + Thai characters
+    IMGUI_API const ImWchar*    GetGlyphRangesVietnamese();             // Default + Vietnamese characters
+
+    //-------------------------------------------
+    // [BETA] Custom Rectangles/Glyphs API
+    //-------------------------------------------
+
+    // You can request arbitrary rectangles to be packed into the atlas, for your own purposes.
+    // - After calling Build(), you can query the rectangle position and render your pixels.
+    // - If you render colored output, set 'atlas->TexPixelsUseColors = true' as this may help some backends decide of prefered texture format.
+    // - You can also request your rectangles to be mapped as font glyph (given a font + Unicode point),
+    //   so you can render e.g. custom colorful icons and use them as regular glyphs.
+    // - Read docs/FONTS.md for more details about using colorful icons.
+    // - Note: this API may be redesigned later in order to support multi-monitor varying DPI settings.
+    IMGUI_API int               AddCustomRectRegular(int width, int height);
+    IMGUI_API int               AddCustomRectFontGlyph(ImFont* font, ImWchar id, int width, int height, float advance_x, const ImVec2& offset = ImVec2(0, 0));
+    ImFontAtlasCustomRect*      GetCustomRectByIndex(int index) { IM_ASSERT(index >= 0); return &CustomRects[index]; }
+
+    // [Internal]
+    IMGUI_API void              CalcCustomRectUV(const ImFontAtlasCustomRect* rect, ImVec2* out_uv_min, ImVec2* out_uv_max) const;
+    IMGUI_API bool              GetMouseCursorTexData(ImGuiMouseCursor cursor, ImVec2* out_offset, ImVec2* out_size, ImVec2 out_uv_border[2], ImVec2 out_uv_fill[2]);
+
+    //-------------------------------------------
+    // Members
+    //-------------------------------------------
+
+    ImFontAtlasFlags            Flags;              // Build flags (see ImFontAtlasFlags_)
+    ImTextureID                 TexID;              // User data to refer to the texture once it has been uploaded to user's graphic systems. It is passed back to you during rendering via the ImDrawCmd structure.
+    int                         TexDesiredWidth;    // Texture width desired by user before Build(). Must be a power-of-two. If have many glyphs your graphics API have texture size restrictions you may want to increase texture width to decrease height.
+    int                         TexGlyphPadding;    // Padding between glyphs within texture in pixels. Defaults to 1. If your rendering method doesn't rely on bilinear filtering you may set this to 0 (will also need to set AntiAliasedLinesUseTex = false).
+    bool                        Locked;             // Marked as Locked by ImGui::NewFrame() so attempt to modify the atlas will assert.
+
+    // [Internal]
+    // NB: Access texture data via GetTexData*() calls! Which will setup a default font for you.
+    bool                        TexReady;           // Set when texture was built matching current font input
+    bool                        TexPixelsUseColors; // Tell whether our texture data is known to use colors (rather than just alpha channel), in order to help backend select a format.
+    unsigned char*              TexPixelsAlpha8;    // 1 component per pixel, each component is unsigned 8-bit. Total size = TexWidth * TexHeight
+    unsigned int*               TexPixelsRGBA32;    // 4 component per pixel, each component is unsigned 8-bit. Total size = TexWidth * TexHeight * 4
+    int                         TexWidth;           // Texture width calculated during Build().
+    int                         TexHeight;          // Texture height calculated during Build().
+    ImVec2                      TexUvScale;         // = (1.0f/TexWidth, 1.0f/TexHeight)
+    ImVec2                      TexUvWhitePixel;    // Texture coordinates to a white pixel
+    ImVector<ImFont*>           Fonts;              // Hold all the fonts returned by AddFont*. Fonts[0] is the default font upon calling ImGui::NewFrame(), use ImGui::PushFont()/PopFont() to change the current font.
+    ImVector<ImFontAtlasCustomRect> CustomRects;    // Rectangles for packing custom texture data into the atlas.
+    ImVector<ImFontConfig>      ConfigData;         // Configuration data
+    ImVec4                      TexUvLines[IM_DRAWLIST_TEX_LINES_WIDTH_MAX + 1];  // UVs for baked anti-aliased lines
+
+    // [Internal] Font builder
+    const ImFontBuilderIO*      FontBuilderIO;      // Opaque interface to a font builder (default to stb_truetype, can be changed to use FreeType by defining IMGUI_ENABLE_FREETYPE).
+    unsigned int                FontBuilderFlags;   // Shared flags (for all fonts) for custom font builder. THIS IS BUILD IMPLEMENTATION DEPENDENT. Per-font override is also available in ImFontConfig.
+
+    // [Internal] Packing data
+    int                         PackIdMouseCursors; // Custom texture rectangle ID for white pixel and mouse cursors
+    int                         PackIdLines;        // Custom texture rectangle ID for baked anti-aliased lines
+
+    // [Obsolete]
+    //typedef ImFontAtlasCustomRect    CustomRect;         // OBSOLETED in 1.72+
+    //typedef ImFontGlyphRangesBuilder GlyphRangesBuilder; // OBSOLETED in 1.67+
+};
+
+// Font runtime data and rendering
+// ImFontAtlas automatically loads a default embedded font for you when you call GetTexDataAsAlpha8() or GetTexDataAsRGBA32().
+struct ImFont
+{
+    // Members: Hot ~20/24 bytes (for CalcTextSize)
+    ImVector<float>             IndexAdvanceX;      // 12-16 // out //            // Sparse. Glyphs->AdvanceX in a directly indexable way (cache-friendly for CalcTextSize functions which only this this info, and are often bottleneck in large UI).
+    float                       FallbackAdvanceX;   // 4     // out // = FallbackGlyph->AdvanceX
+    float                       FontSize;           // 4     // in  //            // Height of characters/line, set during loading (don't change after loading)
+
+    // Members: Hot ~28/40 bytes (for CalcTextSize + render loop)
+    ImVector<ImWchar>           IndexLookup;        // 12-16 // out //            // Sparse. Index glyphs by Unicode code-point.
+    ImVector<ImFontGlyph>       Glyphs;             // 12-16 // out //            // All glyphs.
+    const ImFontGlyph*          FallbackGlyph;      // 4-8   // out // = FindGlyph(FontFallbackChar)
+
+    // Members: Cold ~32/40 bytes
+    ImFontAtlas*                ContainerAtlas;     // 4-8   // out //            // What we has been loaded into
+    const ImFontConfig*         ConfigData;         // 4-8   // in  //            // Pointer within ContainerAtlas->ConfigData
+    short                       ConfigDataCount;    // 2     // in  // ~ 1        // Number of ImFontConfig involved in creating this font. Bigger than 1 when merging multiple font sources into one ImFont.
+    ImWchar                     FallbackChar;       // 2     // out // = FFFD/'?' // Character used if a glyph isn't found.
+    ImWchar                     EllipsisChar;       // 2     // out // = '...'    // Character used for ellipsis rendering.
+    ImWchar                     DotChar;            // 2     // out // = '.'      // Character used for ellipsis rendering (if a single '...' character isn't found)
+    bool                        DirtyLookupTables;  // 1     // out //
+    float                       Scale;              // 4     // in  // = 1.f      // Base font scale, multiplied by the per-window font scale which you can adjust with SetWindowFontScale()
+    float                       Ascent, Descent;    // 4+4   // out //            // Ascent: distance from top to bottom of e.g. 'A' [0..FontSize]
+    int                         MetricsTotalSurface;// 4     // out //            // Total surface in pixels to get an idea of the font rasterization/texture cost (not exact, we approximate the cost of padding between glyphs)
+    ImU8                        Used4kPagesMap[(IM_UNICODE_CODEPOINT_MAX+1)/4096/8]; // 2 bytes if ImWchar=ImWchar16, 34 bytes if ImWchar==ImWchar32. Store 1-bit for each block of 4K codepoints that has one active glyph. This is mainly used to facilitate iterations across all used codepoints.
+
+    // Methods
+    IMGUI_API ImFont();
+    IMGUI_API ~ImFont();
+    IMGUI_API const ImFontGlyph*FindGlyph(ImWchar c) const;
+    IMGUI_API const ImFontGlyph*FindGlyphNoFallback(ImWchar c) const;
+    float                       GetCharAdvance(ImWchar c) const     { return ((int)c < IndexAdvanceX.Size) ? IndexAdvanceX[(int)c] : FallbackAdvanceX; }
+    bool                        IsLoaded() const                    { return ContainerAtlas != NULL; }
+    const char*                 GetDebugName() const                { return ConfigData ? ConfigData->Name : "<unknown>"; }
+
+    // 'max_width' stops rendering after a certain width (could be turned into a 2d size). FLT_MAX to disable.
+    // 'wrap_width' enable automatic word-wrapping across multiple lines to fit into given width. 0.0f to disable.
+    IMGUI_API ImVec2            CalcTextSizeA(float size, float max_width, float wrap_width, const char* text_begin, const char* text_end = NULL, const char** remaining = NULL) const; // utf8
+    IMGUI_API const char*       CalcWordWrapPositionA(float scale, const char* text, const char* text_end, float wrap_width) const;
+    IMGUI_API void              RenderChar(ImDrawList* draw_list, float size, const ImVec2& pos, ImU32 col, ImWchar c) const;
+    IMGUI_API void              RenderText(ImDrawList* draw_list, float size, const ImVec2& pos, ImU32 col, const ImVec4& clip_rect, const char* text_begin, const char* text_end, float wrap_width = 0.0f, bool cpu_fine_clip = false) const;
+
+    // [Internal] Don't use!
+    IMGUI_API void              BuildLookupTable();
+    IMGUI_API void              ClearOutputData();
+    IMGUI_API void              GrowIndex(int new_size);
+    IMGUI_API void              AddGlyph(const ImFontConfig* src_cfg, ImWchar c, float x0, float y0, float x1, float y1, float u0, float v0, float u1, float v1, float advance_x);
+    IMGUI_API void              AddRemapChar(ImWchar dst, ImWchar src, bool overwrite_dst = true); // Makes 'dst' character/glyph points to 'src' character/glyph. Currently needs to be called AFTER fonts have been built.
+    IMGUI_API void              SetGlyphVisible(ImWchar c, bool visible);
+    IMGUI_API bool              IsGlyphRangeUnused(unsigned int c_begin, unsigned int c_last);
+};
+
+//-----------------------------------------------------------------------------
+// [SECTION] Viewports
+//-----------------------------------------------------------------------------
+
+// Flags stored in ImGuiViewport::Flags, giving indications to the platform backends.
+enum ImGuiViewportFlags_
+{
+    ImGuiViewportFlags_None                     = 0,
+    ImGuiViewportFlags_IsPlatformWindow         = 1 << 0,   // Represent a Platform Window
+    ImGuiViewportFlags_IsPlatformMonitor        = 1 << 1,   // Represent a Platform Monitor (unused yet)
+    ImGuiViewportFlags_OwnedByApp               = 1 << 2    // Platform Window: is created/managed by the application (rather than a dear imgui backend)
+};
+
+// - Currently represents the Platform Window created by the application which is hosting our Dear ImGui windows.
+// - In 'docking' branch with multi-viewport enabled, we extend this concept to have multiple active viewports.
+// - In the future we will extend this concept further to also represent Platform Monitor and support a "no main platform window" operation mode.
+// - About Main Area vs Work Area:
+//   - Main Area = entire viewport.
+//   - Work Area = entire viewport minus sections used by main menu bars (for platform windows), or by task bar (for platform monitor).
+//   - Windows are generally trying to stay within the Work Area of their host viewport.
+struct ImGuiViewport
+{
+    ImGuiViewportFlags  Flags;                  // See ImGuiViewportFlags_
+    ImVec2              Pos;                    // Main Area: Position of the viewport (Dear ImGui coordinates are the same as OS desktop/native coordinates)
+    ImVec2              Size;                   // Main Area: Size of the viewport.
+    ImVec2              WorkPos;                // Work Area: Position of the viewport minus task bars, menus bars, status bars (>= Pos)
+    ImVec2              WorkSize;               // Work Area: Size of the viewport minus task bars, menu bars, status bars (<= Size)
+
+    // Platform/Backend Dependent Data
+    void*               PlatformHandleRaw;      // void* to hold lower-level, platform-native window handle (under Win32 this is expected to be a HWND, unused for other platforms)
+
+    ImGuiViewport()     { memset(this, 0, sizeof(*this)); }
+
+    // Helpers
+    ImVec2              GetCenter() const       { return ImVec2(Pos.x + Size.x * 0.5f, Pos.y + Size.y * 0.5f); }
+    ImVec2              GetWorkCenter() const   { return ImVec2(WorkPos.x + WorkSize.x * 0.5f, WorkPos.y + WorkSize.y * 0.5f); }
+};
+
+//-----------------------------------------------------------------------------
+// [SECTION] Platform Dependent Interfaces
+//-----------------------------------------------------------------------------
+
+// (Optional) Support for IME (Input Method Editor) via the io.SetPlatformImeDataFn() function.
+struct ImGuiPlatformImeData
+{
+    bool    WantVisible;        // A widget wants the IME to be visible
+    ImVec2  InputPos;           // Position of the input cursor
+    float   InputLineHeight;    // Line height
+
+    ImGuiPlatformImeData() { memset(this, 0, sizeof(*this)); }
+};
+
+//-----------------------------------------------------------------------------
+// [SECTION] Obsolete functions and types
+// (Will be removed! Read 'API BREAKING CHANGES' section in imgui.cpp for details)
+// Please keep your copy of dear imgui up to date! Occasionally set '#define IMGUI_DISABLE_OBSOLETE_FUNCTIONS' in imconfig.h to stay ahead.
+//-----------------------------------------------------------------------------
+
+namespace ImGui
+{
+#ifndef IMGUI_DISABLE_OBSOLETE_KEYIO
+    IMGUI_API int       GetKeyIndex(ImGuiKey key);  // map ImGuiKey_* values into legacy native key index. == io.KeyMap[key]
+#else
+    static inline int   GetKeyIndex(ImGuiKey key)   { IM_ASSERT(key >= ImGuiKey_NamedKey_BEGIN && key < ImGuiKey_NamedKey_END && "ImGuiKey and native_index was merged together and native_index is disabled by IMGUI_DISABLE_OBSOLETE_KEYIO. Please switch to ImGuiKey."); return key; }
+#endif
+}
+
+#ifndef IMGUI_DISABLE_OBSOLETE_FUNCTIONS
+namespace ImGui
+{
+    // OBSOLETED in 1.88 (from May 2022)
+    static inline void  CaptureKeyboardFromApp(bool want_capture_keyboard = true)   { SetNextFrameWantCaptureKeyboard(want_capture_keyboard); } // Renamed as name was misleading + removed default value.
+    static inline void  CaptureMouseFromApp(bool want_capture_mouse = true)         { SetNextFrameWantCaptureMouse(want_capture_mouse); }       // Renamed as name was misleading + removed default value.
+    // OBSOLETED in 1.86 (from November 2021)
+    IMGUI_API void      CalcListClipping(int items_count, float items_height, int* out_items_display_start, int* out_items_display_end); // Calculate coarse clipping for large list of evenly sized items. Prefer using ImGuiListClipper.
+    // OBSOLETED in 1.85 (from August 2021)
+    static inline float GetWindowContentRegionWidth()                               { return GetWindowContentRegionMax().x - GetWindowContentRegionMin().x; }
+    // OBSOLETED in 1.81 (from February 2021)
+    IMGUI_API bool      ListBoxHeader(const char* label, int items_count, int height_in_items = -1); // Helper to calculate size from items_count and height_in_items
+    static inline bool  ListBoxHeader(const char* label, const ImVec2& size = ImVec2(0, 0))         { return BeginListBox(label, size); }
+    static inline void  ListBoxFooter() { EndListBox(); }
+    // OBSOLETED in 1.79 (from August 2020)
+    static inline void  OpenPopupContextItem(const char* str_id = NULL, ImGuiMouseButton mb = 1)    { OpenPopupOnItemClick(str_id, mb); } // Bool return value removed. Use IsWindowAppearing() in BeginPopup() instead. Renamed in 1.77, renamed back in 1.79. Sorry!
+    // OBSOLETED in 1.78 (from June 2020)
+    // Old drag/sliders functions that took a 'float power = 1.0' argument instead of flags.
+    // For shared code, you can version check at compile-time with `#if IMGUI_VERSION_NUM >= 17704`.
+    IMGUI_API bool      DragScalar(const char* label, ImGuiDataType data_type, void* p_data, float v_speed, const void* p_min, const void* p_max, const char* format, float power);
+    IMGUI_API bool      DragScalarN(const char* label, ImGuiDataType data_type, void* p_data, int components, float v_speed, const void* p_min, const void* p_max, const char* format, float power);
+    static inline bool  DragFloat(const char* label, float* v, float v_speed, float v_min, float v_max, const char* format, float power)    { return DragScalar(label, ImGuiDataType_Float, v, v_speed, &v_min, &v_max, format, power); }
+    static inline bool  DragFloat2(const char* label, float v[2], float v_speed, float v_min, float v_max, const char* format, float power) { return DragScalarN(label, ImGuiDataType_Float, v, 2, v_speed, &v_min, &v_max, format, power); }
+    static inline bool  DragFloat3(const char* label, float v[3], float v_speed, float v_min, float v_max, const char* format, float power) { return DragScalarN(label, ImGuiDataType_Float, v, 3, v_speed, &v_min, &v_max, format, power); }
+    static inline bool  DragFloat4(const char* label, float v[4], float v_speed, float v_min, float v_max, const char* format, float power) { return DragScalarN(label, ImGuiDataType_Float, v, 4, v_speed, &v_min, &v_max, format, power); }
+    IMGUI_API bool      SliderScalar(const char* label, ImGuiDataType data_type, void* p_data, const void* p_min, const void* p_max, const char* format, float power);
+    IMGUI_API bool      SliderScalarN(const char* label, ImGuiDataType data_type, void* p_data, int components, const void* p_min, const void* p_max, const char* format, float power);
+    static inline bool  SliderFloat(const char* label, float* v, float v_min, float v_max, const char* format, float power)                 { return SliderScalar(label, ImGuiDataType_Float, v, &v_min, &v_max, format, power); }
+    static inline bool  SliderFloat2(const char* label, float v[2], float v_min, float v_max, const char* format, float power)              { return SliderScalarN(label, ImGuiDataType_Float, v, 2, &v_min, &v_max, format, power); }
+    static inline bool  SliderFloat3(const char* label, float v[3], float v_min, float v_max, const char* format, float power)              { return SliderScalarN(label, ImGuiDataType_Float, v, 3, &v_min, &v_max, format, power); }
+    static inline bool  SliderFloat4(const char* label, float v[4], float v_min, float v_max, const char* format, float power)              { return SliderScalarN(label, ImGuiDataType_Float, v, 4, &v_min, &v_max, format, power); }
+    // OBSOLETED in 1.77 (from June 2020)
+    static inline bool  BeginPopupContextWindow(const char* str_id, ImGuiMouseButton mb, bool over_items) { return BeginPopupContextWindow(str_id, mb | (over_items ? 0 : ImGuiPopupFlags_NoOpenOverItems)); }
+
+    // Some of the older obsolete names along with their replacement (commented out so they are not reported in IDE)
+    //static inline void  TreeAdvanceToLabelPos()               { SetCursorPosX(GetCursorPosX() + GetTreeNodeToLabelSpacing()); }   // OBSOLETED in 1.72 (from July 2019)
+    //static inline void  SetNextTreeNodeOpen(bool open, ImGuiCond cond = 0) { SetNextItemOpen(open, cond); }                       // OBSOLETED in 1.71 (from June 2019)
+    //static inline float GetContentRegionAvailWidth()          { return GetContentRegionAvail().x; }                               // OBSOLETED in 1.70 (from May 2019)
+    //static inline ImDrawList* GetOverlayDrawList()            { return GetForegroundDrawList(); }                                 // OBSOLETED in 1.69 (from Mar 2019)
+    //static inline void  SetScrollHere(float ratio = 0.5f)     { SetScrollHereY(ratio); }                                          // OBSOLETED in 1.66 (from Nov 2018)
+    //static inline bool  IsItemDeactivatedAfterChange()        { return IsItemDeactivatedAfterEdit(); }                            // OBSOLETED in 1.63 (from Aug 2018)
+    //static inline bool  IsAnyWindowFocused()                  { return IsWindowFocused(ImGuiFocusedFlags_AnyWindow); }            // OBSOLETED in 1.60 (from Apr 2018)
+    //static inline bool  IsAnyWindowHovered()                  { return IsWindowHovered(ImGuiHoveredFlags_AnyWindow); }            // OBSOLETED in 1.60 (between Dec 2017 and Apr 2018)
+    //static inline void  ShowTestWindow()                      { return ShowDemoWindow(); }                                        // OBSOLETED in 1.53 (between Oct 2017 and Dec 2017)
+    //static inline bool  IsRootWindowFocused()                 { return IsWindowFocused(ImGuiFocusedFlags_RootWindow); }           // OBSOLETED in 1.53 (between Oct 2017 and Dec 2017)
+    //static inline bool  IsRootWindowOrAnyChildFocused()       { return IsWindowFocused(ImGuiFocusedFlags_RootAndChildWindows); }  // OBSOLETED in 1.53 (between Oct 2017 and Dec 2017)
+    //static inline void  SetNextWindowContentWidth(float w)    { SetNextWindowContentSize(ImVec2(w, 0.0f)); }                      // OBSOLETED in 1.53 (between Oct 2017 and Dec 2017)
+    //static inline float GetItemsLineHeightWithSpacing()       { return GetFrameHeightWithSpacing(); }                             // OBSOLETED in 1.53 (between Oct 2017 and Dec 2017)
+}
+
+// OBSOLETED in 1.82 (from Mars 2021): flags for AddRect(), AddRectFilled(), AddImageRounded(), PathRect()
+typedef ImDrawFlags ImDrawCornerFlags;
+enum ImDrawCornerFlags_
+{
+    ImDrawCornerFlags_None      = ImDrawFlags_RoundCornersNone,         // Was == 0 prior to 1.82, this is now == ImDrawFlags_RoundCornersNone which is != 0 and not implicit
+    ImDrawCornerFlags_TopLeft   = ImDrawFlags_RoundCornersTopLeft,      // Was == 0x01 (1 << 0) prior to 1.82. Order matches ImDrawFlags_NoRoundCorner* flag (we exploit this internally).
+    ImDrawCornerFlags_TopRight  = ImDrawFlags_RoundCornersTopRight,     // Was == 0x02 (1 << 1) prior to 1.82.
+    ImDrawCornerFlags_BotLeft   = ImDrawFlags_RoundCornersBottomLeft,   // Was == 0x04 (1 << 2) prior to 1.82.
+    ImDrawCornerFlags_BotRight  = ImDrawFlags_RoundCornersBottomRight,  // Was == 0x08 (1 << 3) prior to 1.82.
+    ImDrawCornerFlags_All       = ImDrawFlags_RoundCornersAll,          // Was == 0x0F prior to 1.82
+    ImDrawCornerFlags_Top       = ImDrawCornerFlags_TopLeft | ImDrawCornerFlags_TopRight,
+    ImDrawCornerFlags_Bot       = ImDrawCornerFlags_BotLeft | ImDrawCornerFlags_BotRight,
+    ImDrawCornerFlags_Left      = ImDrawCornerFlags_TopLeft | ImDrawCornerFlags_BotLeft,
+    ImDrawCornerFlags_Right     = ImDrawCornerFlags_TopRight | ImDrawCornerFlags_BotRight
+};
+
+// RENAMED ImGuiKeyModFlags -> ImGuiModFlags in 1.88 (from April 2022)
+typedef int ImGuiKeyModFlags;
+enum ImGuiKeyModFlags_ { ImGuiKeyModFlags_None = ImGuiModFlags_None, ImGuiKeyModFlags_Ctrl = ImGuiModFlags_Ctrl, ImGuiKeyModFlags_Shift = ImGuiModFlags_Shift, ImGuiKeyModFlags_Alt = ImGuiModFlags_Alt, ImGuiKeyModFlags_Super = ImGuiModFlags_Super };
+
+#endif // #ifndef IMGUI_DISABLE_OBSOLETE_FUNCTIONS
+
+// RENAMED IMGUI_DISABLE_METRICS_WINDOW > IMGUI_DISABLE_DEBUG_TOOLS in 1.88 (from June 2022)
+#if defined(IMGUI_DISABLE_METRICS_WINDOW) && !defined(IMGUI_DISABLE_OBSOLETE_FUNCTIONS) && !defined(IMGUI_DISABLE_DEBUG_TOOLS)
+#define IMGUI_DISABLE_DEBUG_TOOLS
+#endif
+#if defined(IMGUI_DISABLE_METRICS_WINDOW) && defined(IMGUI_DISABLE_OBSOLETE_FUNCTIONS)
+#error IMGUI_DISABLE_METRICS_WINDOW was renamed to IMGUI_DISABLE_DEBUG_TOOLS, please use new name.
+#endif
+
+//-----------------------------------------------------------------------------
+
+#if defined(__clang__)
+#pragma clang diagnostic pop
+#elif defined(__GNUC__)
+#pragma GCC diagnostic pop
+#endif
+
+#ifdef _MSC_VER
+#pragma warning (pop)
+#endif
+
+// Include imgui_user.h at the end of imgui.h (convenient for user to only explicitly include vanilla imgui.h)
+#ifdef IMGUI_INCLUDE_IMGUI_USER_H
+#include "imgui_user.h"
+#endif
+
+#endif // #ifndef IMGUI_DISABLE
diff --git a/tests/manual/rhi/shared/imgui/imgui/imgui_demo.cpp b/tests/manual/rhi/shared/imgui/imgui/imgui_demo.cpp
new file mode 100644
index 00000000..4a12dd4d
--- /dev/null
+++ b/tests/manual/rhi/shared/imgui/imgui/imgui_demo.cpp
@@ -0,0 +1,7969 @@
+// dear imgui, v1.88
+// (demo code)
+
+// Help:
+// - Read FAQ at http://dearimgui.org/faq
+// - Newcomers, read 'Programmer guide' in imgui.cpp for notes on how to setup Dear ImGui in your codebase.
+// - Call and read ImGui::ShowDemoWindow() in imgui_demo.cpp. All applications in examples/ are doing that.
+// Read imgui.cpp for more details, documentation and comments.
+// Get the latest version at https://github.com/ocornut/imgui
+
+// Message to the person tempted to delete this file when integrating Dear ImGui into their codebase:
+// Do NOT remove this file from your project! Think again! It is the most useful reference code that you and other
+// coders will want to refer to and call. Have the ImGui::ShowDemoWindow() function wired in an always-available
+// debug menu of your game/app! Removing this file from your project is hindering access to documentation for everyone
+// in your team, likely leading you to poorer usage of the library.
+// Everything in this file will be stripped out by the linker if you don't call ImGui::ShowDemoWindow().
+// If you want to link core Dear ImGui in your shipped builds but want a thorough guarantee that the demo will not be
+// linked, you can setup your imconfig.h with #define IMGUI_DISABLE_DEMO_WINDOWS and those functions will be empty.
+// In another situation, whenever you have Dear ImGui available you probably want this to be available for reference.
+// Thank you,
+// -Your beloved friend, imgui_demo.cpp (which you won't delete)
+
+// Message to beginner C/C++ programmers about the meaning of the 'static' keyword:
+// In this demo code, we frequently use 'static' variables inside functions. A static variable persists across calls,
+// so it is essentially like a global variable but declared inside the scope of the function. We do this as a way to
+// gather code and data in the same place, to make the demo source code faster to read, faster to write, and smaller
+// in size. It also happens to be a convenient way of storing simple UI related information as long as your function
+// doesn't need to be reentrant or used in multiple threads. This might be a pattern you will want to use in your code,
+// but most of the real data you would be editing is likely going to be stored outside your functions.
+
+// The Demo code in this file is designed to be easy to copy-and-paste into your application!
+// Because of this:
+// - We never omit the ImGui:: prefix when calling functions, even though most code here is in the same namespace.
+// - We try to declare static variables in the local scope, as close as possible to the code using them.
+// - We never use any of the helpers/facilities used internally by Dear ImGui, unless available in the public API.
+// - We never use maths operators on ImVec2/ImVec4. For our other sources files we use them, and they are provided
+//   by imgui_internal.h using the IMGUI_DEFINE_MATH_OPERATORS define. For your own sources file they are optional
+//   and require you either enable those, either provide your own via IM_VEC2_CLASS_EXTRA in imconfig.h.
+//   Because we can't assume anything about your support of maths operators, we cannot use them in imgui_demo.cpp.
+
+// Navigating this file:
+// - In Visual Studio IDE: CTRL+comma ("Edit.GoToAll") can follow symbols in comments, whereas CTRL+F12 ("Edit.GoToImplementation") cannot.
+// - With Visual Assist installed: ALT+G ("VAssistX.GoToImplementation") can also follow symbols in comments.
+
+/*
+
+Index of this file:
+
+// [SECTION] Forward Declarations, Helpers
+// [SECTION] Demo Window / ShowDemoWindow()
+// - sub section: ShowDemoWindowWidgets()
+// - sub section: ShowDemoWindowLayout()
+// - sub section: ShowDemoWindowPopups()
+// - sub section: ShowDemoWindowTables()
+// - sub section: ShowDemoWindowMisc()
+// [SECTION] About Window / ShowAboutWindow()
+// [SECTION] Style Editor / ShowStyleEditor()
+// [SECTION] Example App: Main Menu Bar / ShowExampleAppMainMenuBar()
+// [SECTION] Example App: Debug Console / ShowExampleAppConsole()
+// [SECTION] Example App: Debug Log / ShowExampleAppLog()
+// [SECTION] Example App: Simple Layout / ShowExampleAppLayout()
+// [SECTION] Example App: Property Editor / ShowExampleAppPropertyEditor()
+// [SECTION] Example App: Long Text / ShowExampleAppLongText()
+// [SECTION] Example App: Auto Resize / ShowExampleAppAutoResize()
+// [SECTION] Example App: Constrained Resize / ShowExampleAppConstrainedResize()
+// [SECTION] Example App: Simple overlay / ShowExampleAppSimpleOverlay()
+// [SECTION] Example App: Fullscreen window / ShowExampleAppFullscreen()
+// [SECTION] Example App: Manipulating window titles / ShowExampleAppWindowTitles()
+// [SECTION] Example App: Custom Rendering using ImDrawList API / ShowExampleAppCustomRendering()
+// [SECTION] Example App: Documents Handling / ShowExampleAppDocuments()
+
+*/
+
+#if defined(_MSC_VER) && !defined(_CRT_SECURE_NO_WARNINGS)
+#define _CRT_SECURE_NO_WARNINGS
+#endif
+
+#include "imgui.h"
+#ifndef IMGUI_DISABLE
+
+// System includes
+#include <ctype.h>          // toupper
+#include <limits.h>         // INT_MIN, INT_MAX
+#include <math.h>           // sqrtf, powf, cosf, sinf, floorf, ceilf
+#include <stdio.h>          // vsnprintf, sscanf, printf
+#include <stdlib.h>         // NULL, malloc, free, atoi
+#if defined(_MSC_VER) && _MSC_VER <= 1500 // MSVC 2008 or earlier
+#include <stddef.h>         // intptr_t
+#else
+#include <stdint.h>         // intptr_t
+#endif
+
+// Visual Studio warnings
+#ifdef _MSC_VER
+#pragma warning (disable: 4127)     // condition expression is constant
+#pragma warning (disable: 4996)     // 'This function or variable may be unsafe': strcpy, strdup, sprintf, vsnprintf, sscanf, fopen
+#pragma warning (disable: 26451)    // [Static Analyzer] Arithmetic overflow : Using operator 'xxx' on a 4 byte value and then casting the result to a 8 byte value. Cast the value to the wider type before calling operator 'xxx' to avoid overflow(io.2).
+#endif
+
+// Clang/GCC warnings with -Weverything
+#if defined(__clang__)
+#if __has_warning("-Wunknown-warning-option")
+#pragma clang diagnostic ignored "-Wunknown-warning-option"         // warning: unknown warning group 'xxx'                     // not all warnings are known by all Clang versions and they tend to be rename-happy.. so ignoring warnings triggers new warnings on some configuration. Great!
+#endif
+#pragma clang diagnostic ignored "-Wunknown-pragmas"                // warning: unknown warning group 'xxx'
+#pragma clang diagnostic ignored "-Wold-style-cast"                 // warning: use of old-style cast                           // yes, they are more terse.
+#pragma clang diagnostic ignored "-Wdeprecated-declarations"        // warning: 'xx' is deprecated: The POSIX name for this..   // for strdup used in demo code (so user can copy & paste the code)
+#pragma clang diagnostic ignored "-Wint-to-void-pointer-cast"       // warning: cast to 'void *' from smaller integer type
+#pragma clang diagnostic ignored "-Wformat-security"                // warning: format string is not a string literal
+#pragma clang diagnostic ignored "-Wexit-time-destructors"          // warning: declaration requires an exit-time destructor    // exit-time destruction order is undefined. if MemFree() leads to users code that has been disabled before exit it might cause problems. ImGui coding style welcomes static/globals.
+#pragma clang diagnostic ignored "-Wunused-macros"                  // warning: macro is not used                               // we define snprintf/vsnprintf on Windows so they are available, but not always used.
+#pragma clang diagnostic ignored "-Wzero-as-null-pointer-constant"  // warning: zero as null pointer constant                   // some standard header variations use #define NULL 0
+#pragma clang diagnostic ignored "-Wdouble-promotion"               // warning: implicit conversion from 'float' to 'double' when passing argument to function  // using printf() is a misery with this as C++ va_arg ellipsis changes float to double.
+#pragma clang diagnostic ignored "-Wreserved-id-macro"              // warning: macro name is a reserved identifier
+#pragma clang diagnostic ignored "-Wimplicit-int-float-conversion"  // warning: implicit conversion from 'xxx' to 'float' may lose precision
+#elif defined(__GNUC__)
+#pragma GCC diagnostic ignored "-Wpragmas"                  // warning: unknown option after '#pragma GCC diagnostic' kind
+#pragma GCC diagnostic ignored "-Wint-to-pointer-cast"      // warning: cast to pointer from integer of different size
+#pragma GCC diagnostic ignored "-Wformat-security"          // warning: format string is not a string literal (potentially insecure)
+#pragma GCC diagnostic ignored "-Wdouble-promotion"         // warning: implicit conversion from 'float' to 'double' when passing argument to function
+#pragma GCC diagnostic ignored "-Wconversion"               // warning: conversion to 'xxxx' from 'xxxx' may alter its value
+#pragma GCC diagnostic ignored "-Wmisleading-indentation"   // [__GNUC__ >= 6] warning: this 'if' clause does not guard this statement      // GCC 6.0+ only. See #883 on GitHub.
+#endif
+
+// Play it nice with Windows users (Update: May 2018, Notepad now supports Unix-style carriage returns!)
+#ifdef _WIN32
+#define IM_NEWLINE  "\r\n"
+#else
+#define IM_NEWLINE  "\n"
+#endif
+
+// Helpers
+#if defined(_MSC_VER) && !defined(snprintf)
+#define snprintf    _snprintf
+#endif
+#if defined(_MSC_VER) && !defined(vsnprintf)
+#define vsnprintf   _vsnprintf
+#endif
+
+// Format specifiers, printing 64-bit hasn't been decently standardized...
+// In a real application you should be using PRId64 and PRIu64 from <inttypes.h> (non-windows) and on Windows define them yourself.
+#ifdef _MSC_VER
+#define IM_PRId64   "I64d"
+#define IM_PRIu64   "I64u"
+#else
+#define IM_PRId64   "lld"
+#define IM_PRIu64   "llu"
+#endif
+
+// Helpers macros
+// We normally try to not use many helpers in imgui_demo.cpp in order to make code easier to copy and paste,
+// but making an exception here as those are largely simplifying code...
+// In other imgui sources we can use nicer internal functions from imgui_internal.h (ImMin/ImMax) but not in the demo.
+#define IM_MIN(A, B)            (((A) < (B)) ? (A) : (B))
+#define IM_MAX(A, B)            (((A) >= (B)) ? (A) : (B))
+#define IM_CLAMP(V, MN, MX)     ((V) < (MN) ? (MN) : (V) > (MX) ? (MX) : (V))
+
+// Enforce cdecl calling convention for functions called by the standard library, in case compilation settings changed the default to e.g. __vectorcall
+#ifndef IMGUI_CDECL
+#ifdef _MSC_VER
+#define IMGUI_CDECL __cdecl
+#else
+#define IMGUI_CDECL
+#endif
+#endif
+
+//-----------------------------------------------------------------------------
+// [SECTION] Forward Declarations, Helpers
+//-----------------------------------------------------------------------------
+
+#if !defined(IMGUI_DISABLE_DEMO_WINDOWS)
+
+// Forward Declarations
+static void ShowExampleAppDocuments(bool* p_open);
+static void ShowExampleAppMainMenuBar();
+static void ShowExampleAppConsole(bool* p_open);
+static void ShowExampleAppLog(bool* p_open);
+static void ShowExampleAppLayout(bool* p_open);
+static void ShowExampleAppPropertyEditor(bool* p_open);
+static void ShowExampleAppLongText(bool* p_open);
+static void ShowExampleAppAutoResize(bool* p_open);
+static void ShowExampleAppConstrainedResize(bool* p_open);
+static void ShowExampleAppSimpleOverlay(bool* p_open);
+static void ShowExampleAppFullscreen(bool* p_open);
+static void ShowExampleAppWindowTitles(bool* p_open);
+static void ShowExampleAppCustomRendering(bool* p_open);
+static void ShowExampleMenuFile();
+
+// Helper to display a little (?) mark which shows a tooltip when hovered.
+// In your own code you may want to display an actual icon if you are using a merged icon fonts (see docs/FONTS.md)
+static void HelpMarker(const char* desc)
+{
+    ImGui::TextDisabled("(?)");
+    if (ImGui::IsItemHovered())
+    {
+        ImGui::BeginTooltip();
+        ImGui::PushTextWrapPos(ImGui::GetFontSize() * 35.0f);
+        ImGui::TextUnformatted(desc);
+        ImGui::PopTextWrapPos();
+        ImGui::EndTooltip();
+    }
+}
+
+// Helper to wire demo markers located in code to a interactive browser
+typedef void (*ImGuiDemoMarkerCallback)(const char* file, int line, const char* section, void* user_data);
+extern ImGuiDemoMarkerCallback  GImGuiDemoMarkerCallback;
+extern void*                    GImGuiDemoMarkerCallbackUserData;
+ImGuiDemoMarkerCallback         GImGuiDemoMarkerCallback = NULL;
+void*                           GImGuiDemoMarkerCallbackUserData = NULL;
+#define IMGUI_DEMO_MARKER(section)  do { if (GImGuiDemoMarkerCallback != NULL) GImGuiDemoMarkerCallback(__FILE__, __LINE__, section, GImGuiDemoMarkerCallbackUserData); } while (0)
+
+// Helper to display basic user controls.
+void ImGui::ShowUserGuide()
+{
+    ImGuiIO& io = ImGui::GetIO();
+    ImGui::BulletText("Double-click on title bar to collapse window.");
+    ImGui::BulletText(
+        "Click and drag on lower corner to resize window\n"
+        "(double-click to auto fit window to its contents).");
+    ImGui::BulletText("CTRL+Click on a slider or drag box to input value as text.");
+    ImGui::BulletText("TAB/SHIFT+TAB to cycle through keyboard editable fields.");
+	ImGui::BulletText("CTRL+Tab to select a window.");
+	if (io.FontAllowUserScaling)
+        ImGui::BulletText("CTRL+Mouse Wheel to zoom window contents.");
+    ImGui::BulletText("While inputing text:\n");
+    ImGui::Indent();
+    ImGui::BulletText("CTRL+Left/Right to word jump.");
+    ImGui::BulletText("CTRL+A or double-click to select all.");
+    ImGui::BulletText("CTRL+X/C/V to use clipboard cut/copy/paste.");
+    ImGui::BulletText("CTRL+Z,CTRL+Y to undo/redo.");
+    ImGui::BulletText("ESCAPE to revert.");
+    ImGui::Unindent();
+    ImGui::BulletText("With keyboard navigation enabled:");
+    ImGui::Indent();
+    ImGui::BulletText("Arrow keys to navigate.");
+    ImGui::BulletText("Space to activate a widget.");
+    ImGui::BulletText("Return to input text into a widget.");
+    ImGui::BulletText("Escape to deactivate a widget, close popup, exit child window.");
+    ImGui::BulletText("Alt to jump to the menu layer of a window.");
+    ImGui::Unindent();
+}
+
+//-----------------------------------------------------------------------------
+// [SECTION] Demo Window / ShowDemoWindow()
+//-----------------------------------------------------------------------------
+// - ShowDemoWindowWidgets()
+// - ShowDemoWindowLayout()
+// - ShowDemoWindowPopups()
+// - ShowDemoWindowTables()
+// - ShowDemoWindowColumns()
+// - ShowDemoWindowMisc()
+//-----------------------------------------------------------------------------
+
+// We split the contents of the big ShowDemoWindow() function into smaller functions
+// (because the link time of very large functions grow non-linearly)
+static void ShowDemoWindowWidgets();
+static void ShowDemoWindowLayout();
+static void ShowDemoWindowPopups();
+static void ShowDemoWindowTables();
+static void ShowDemoWindowColumns();
+static void ShowDemoWindowMisc();
+
+// Demonstrate most Dear ImGui features (this is big function!)
+// You may execute this function to experiment with the UI and understand what it does.
+// You may then search for keywords in the code when you are interested by a specific feature.
+void ImGui::ShowDemoWindow(bool* p_open)
+{
+    // Exceptionally add an extra assert here for people confused about initial Dear ImGui setup
+    // Most ImGui functions would normally just crash if the context is missing.
+    IM_ASSERT(ImGui::GetCurrentContext() != NULL && "Missing dear imgui context. Refer to examples app!");
+
+    // Examples Apps (accessible from the "Examples" menu)
+    static bool show_app_main_menu_bar = false;
+    static bool show_app_documents = false;
+
+    static bool show_app_console = false;
+    static bool show_app_log = false;
+    static bool show_app_layout = false;
+    static bool show_app_property_editor = false;
+    static bool show_app_long_text = false;
+    static bool show_app_auto_resize = false;
+    static bool show_app_constrained_resize = false;
+    static bool show_app_simple_overlay = false;
+    static bool show_app_fullscreen = false;
+    static bool show_app_window_titles = false;
+    static bool show_app_custom_rendering = false;
+
+    if (show_app_main_menu_bar)       ShowExampleAppMainMenuBar();
+    if (show_app_documents)           ShowExampleAppDocuments(&show_app_documents);
+
+    if (show_app_console)             ShowExampleAppConsole(&show_app_console);
+    if (show_app_log)                 ShowExampleAppLog(&show_app_log);
+    if (show_app_layout)              ShowExampleAppLayout(&show_app_layout);
+    if (show_app_property_editor)     ShowExampleAppPropertyEditor(&show_app_property_editor);
+    if (show_app_long_text)           ShowExampleAppLongText(&show_app_long_text);
+    if (show_app_auto_resize)         ShowExampleAppAutoResize(&show_app_auto_resize);
+    if (show_app_constrained_resize)  ShowExampleAppConstrainedResize(&show_app_constrained_resize);
+    if (show_app_simple_overlay)      ShowExampleAppSimpleOverlay(&show_app_simple_overlay);
+    if (show_app_fullscreen)          ShowExampleAppFullscreen(&show_app_fullscreen);
+    if (show_app_window_titles)       ShowExampleAppWindowTitles(&show_app_window_titles);
+    if (show_app_custom_rendering)    ShowExampleAppCustomRendering(&show_app_custom_rendering);
+
+    // Dear ImGui Apps (accessible from the "Tools" menu)
+    static bool show_app_metrics = false;
+    static bool show_app_debug_log = false;
+    static bool show_app_stack_tool = false;
+    static bool show_app_about = false;
+    static bool show_app_style_editor = false;
+
+    if (show_app_metrics)
+        ImGui::ShowMetricsWindow(&show_app_metrics);
+    if (show_app_debug_log)
+        ImGui::ShowDebugLogWindow(&show_app_debug_log);
+    if (show_app_stack_tool)
+        ImGui::ShowStackToolWindow(&show_app_stack_tool);
+    if (show_app_about)
+        ImGui::ShowAboutWindow(&show_app_about);
+    if (show_app_style_editor)
+    {
+        ImGui::Begin("Dear ImGui Style Editor", &show_app_style_editor);
+        ImGui::ShowStyleEditor();
+        ImGui::End();
+    }
+
+    // Demonstrate the various window flags. Typically you would just use the default!
+    static bool no_titlebar = false;
+    static bool no_scrollbar = false;
+    static bool no_menu = false;
+    static bool no_move = false;
+    static bool no_resize = false;
+    static bool no_collapse = false;
+    static bool no_close = false;
+    static bool no_nav = false;
+    static bool no_background = false;
+    static bool no_bring_to_front = false;
+    static bool unsaved_document = false;
+
+    ImGuiWindowFlags window_flags = 0;
+    if (no_titlebar)        window_flags |= ImGuiWindowFlags_NoTitleBar;
+    if (no_scrollbar)       window_flags |= ImGuiWindowFlags_NoScrollbar;
+    if (!no_menu)           window_flags |= ImGuiWindowFlags_MenuBar;
+    if (no_move)            window_flags |= ImGuiWindowFlags_NoMove;
+    if (no_resize)          window_flags |= ImGuiWindowFlags_NoResize;
+    if (no_collapse)        window_flags |= ImGuiWindowFlags_NoCollapse;
+    if (no_nav)             window_flags |= ImGuiWindowFlags_NoNav;
+    if (no_background)      window_flags |= ImGuiWindowFlags_NoBackground;
+    if (no_bring_to_front)  window_flags |= ImGuiWindowFlags_NoBringToFrontOnFocus;
+    if (unsaved_document)   window_flags |= ImGuiWindowFlags_UnsavedDocument;
+    if (no_close)           p_open = NULL; // Don't pass our bool* to Begin
+
+    // We specify a default position/size in case there's no data in the .ini file.
+    // We only do it to make the demo applications a little more welcoming, but typically this isn't required.
+    const ImGuiViewport* main_viewport = ImGui::GetMainViewport();
+    ImGui::SetNextWindowPos(ImVec2(main_viewport->WorkPos.x + 650, main_viewport->WorkPos.y + 20), ImGuiCond_FirstUseEver);
+    ImGui::SetNextWindowSize(ImVec2(550, 680), ImGuiCond_FirstUseEver);
+
+    // Main body of the Demo window starts here.
+    if (!ImGui::Begin("Dear ImGui Demo", p_open, window_flags))
+    {
+        // Early out if the window is collapsed, as an optimization.
+        ImGui::End();
+        return;
+    }
+
+    // Most "big" widgets share a common width settings by default. See 'Demo->Layout->Widgets Width' for details.
+
+    // e.g. Use 2/3 of the space for widgets and 1/3 for labels (right align)
+    //ImGui::PushItemWidth(-ImGui::GetWindowWidth() * 0.35f);
+
+    // e.g. Leave a fixed amount of width for labels (by passing a negative value), the rest goes to widgets.
+    ImGui::PushItemWidth(ImGui::GetFontSize() * -12);
+
+    // Menu Bar
+    if (ImGui::BeginMenuBar())
+    {
+        if (ImGui::BeginMenu("Menu"))
+        {
+            IMGUI_DEMO_MARKER("Menu/File");
+            ShowExampleMenuFile();
+            ImGui::EndMenu();
+        }
+        if (ImGui::BeginMenu("Examples"))
+        {
+            IMGUI_DEMO_MARKER("Menu/Examples");
+            ImGui::MenuItem("Main menu bar", NULL, &show_app_main_menu_bar);
+            ImGui::MenuItem("Console", NULL, &show_app_console);
+            ImGui::MenuItem("Log", NULL, &show_app_log);
+            ImGui::MenuItem("Simple layout", NULL, &show_app_layout);
+            ImGui::MenuItem("Property editor", NULL, &show_app_property_editor);
+            ImGui::MenuItem("Long text display", NULL, &show_app_long_text);
+            ImGui::MenuItem("Auto-resizing window", NULL, &show_app_auto_resize);
+            ImGui::MenuItem("Constrained-resizing window", NULL, &show_app_constrained_resize);
+            ImGui::MenuItem("Simple overlay", NULL, &show_app_simple_overlay);
+            ImGui::MenuItem("Fullscreen window", NULL, &show_app_fullscreen);
+            ImGui::MenuItem("Manipulating window titles", NULL, &show_app_window_titles);
+            ImGui::MenuItem("Custom rendering", NULL, &show_app_custom_rendering);
+            ImGui::MenuItem("Documents", NULL, &show_app_documents);
+            ImGui::EndMenu();
+        }
+        //if (ImGui::MenuItem("MenuItem")) {} // You can also use MenuItem() inside a menu bar!
+        if (ImGui::BeginMenu("Tools"))
+        {
+            IMGUI_DEMO_MARKER("Menu/Tools");
+#ifndef IMGUI_DISABLE_DEBUG_TOOLS
+            const bool has_debug_tools = true;
+#else
+            const bool has_debug_tools = false;
+#endif
+            ImGui::MenuItem("Metrics/Debugger", NULL, &show_app_metrics, has_debug_tools);
+            ImGui::MenuItem("Debug Log", NULL, &show_app_debug_log, has_debug_tools);
+            ImGui::MenuItem("Stack Tool", NULL, &show_app_stack_tool, has_debug_tools);
+            ImGui::MenuItem("Style Editor", NULL, &show_app_style_editor);
+            ImGui::MenuItem("About Dear ImGui", NULL, &show_app_about);
+            ImGui::EndMenu();
+        }
+        ImGui::EndMenuBar();
+    }
+
+    ImGui::Text("dear imgui says hello! (%s) (%d)", IMGUI_VERSION, IMGUI_VERSION_NUM);
+    ImGui::Spacing();
+
+    IMGUI_DEMO_MARKER("Help");
+    if (ImGui::CollapsingHeader("Help"))
+    {
+        ImGui::Text("ABOUT THIS DEMO:");
+        ImGui::BulletText("Sections below are demonstrating many aspects of the library.");
+        ImGui::BulletText("The \"Examples\" menu above leads to more demo contents.");
+        ImGui::BulletText("The \"Tools\" menu above gives access to: About Box, Style Editor,\n"
+                          "and Metrics/Debugger (general purpose Dear ImGui debugging tool).");
+        ImGui::Separator();
+
+        ImGui::Text("PROGRAMMER GUIDE:");
+        ImGui::BulletText("See the ShowDemoWindow() code in imgui_demo.cpp. <- you are here!");
+        ImGui::BulletText("See comments in imgui.cpp.");
+        ImGui::BulletText("See example applications in the examples/ folder.");
+        ImGui::BulletText("Read the FAQ at http://www.dearimgui.org/faq/");
+        ImGui::BulletText("Set 'io.ConfigFlags |= NavEnableKeyboard' for keyboard controls.");
+        ImGui::BulletText("Set 'io.ConfigFlags |= NavEnableGamepad' for gamepad controls.");
+        ImGui::Separator();
+
+        ImGui::Text("USER GUIDE:");
+        ImGui::ShowUserGuide();
+    }
+
+    IMGUI_DEMO_MARKER("Configuration");
+    if (ImGui::CollapsingHeader("Configuration"))
+    {
+        ImGuiIO& io = ImGui::GetIO();
+
+        if (ImGui::TreeNode("Configuration##2"))
+        {
+            ImGui::CheckboxFlags("io.ConfigFlags: NavEnableKeyboard",    &io.ConfigFlags, ImGuiConfigFlags_NavEnableKeyboard);
+            ImGui::SameLine(); HelpMarker("Enable keyboard controls.");
+            ImGui::CheckboxFlags("io.ConfigFlags: NavEnableGamepad",     &io.ConfigFlags, ImGuiConfigFlags_NavEnableGamepad);
+            ImGui::SameLine(); HelpMarker("Enable gamepad controls. Require backend to set io.BackendFlags |= ImGuiBackendFlags_HasGamepad.\n\nRead instructions in imgui.cpp for details.");
+            ImGui::CheckboxFlags("io.ConfigFlags: NavEnableSetMousePos", &io.ConfigFlags, ImGuiConfigFlags_NavEnableSetMousePos);
+            ImGui::SameLine(); HelpMarker("Instruct navigation to move the mouse cursor. See comment for ImGuiConfigFlags_NavEnableSetMousePos.");
+            ImGui::CheckboxFlags("io.ConfigFlags: NoMouse",              &io.ConfigFlags, ImGuiConfigFlags_NoMouse);
+            if (io.ConfigFlags & ImGuiConfigFlags_NoMouse)
+            {
+                // The "NoMouse" option can get us stuck with a disabled mouse! Let's provide an alternative way to fix it:
+                if (fmodf((float)ImGui::GetTime(), 0.40f) < 0.20f)
+                {
+                    ImGui::SameLine();
+                    ImGui::Text("<<PRESS SPACE TO DISABLE>>");
+                }
+                if (ImGui::IsKeyPressed(ImGuiKey_Space))
+                    io.ConfigFlags &= ~ImGuiConfigFlags_NoMouse;
+            }
+            ImGui::CheckboxFlags("io.ConfigFlags: NoMouseCursorChange", &io.ConfigFlags, ImGuiConfigFlags_NoMouseCursorChange);
+            ImGui::SameLine(); HelpMarker("Instruct backend to not alter mouse cursor shape and visibility.");
+            ImGui::Checkbox("io.ConfigInputTrickleEventQueue", &io.ConfigInputTrickleEventQueue);
+            ImGui::SameLine(); HelpMarker("Enable input queue trickling: some types of events submitted during the same frame (e.g. button down + up) will be spread over multiple frames, improving interactions with low framerates.");
+            ImGui::Checkbox("io.ConfigInputTextCursorBlink", &io.ConfigInputTextCursorBlink);
+            ImGui::SameLine(); HelpMarker("Enable blinking cursor (optional as some users consider it to be distracting).");
+            ImGui::Checkbox("io.ConfigDragClickToInputText", &io.ConfigDragClickToInputText);
+            ImGui::SameLine(); HelpMarker("Enable turning DragXXX widgets into text input with a simple mouse click-release (without moving).");
+            ImGui::Checkbox("io.ConfigWindowsResizeFromEdges", &io.ConfigWindowsResizeFromEdges);
+            ImGui::SameLine(); HelpMarker("Enable resizing of windows from their edges and from the lower-left corner.\nThis requires (io.BackendFlags & ImGuiBackendFlags_HasMouseCursors) because it needs mouse cursor feedback.");
+            ImGui::Checkbox("io.ConfigWindowsMoveFromTitleBarOnly", &io.ConfigWindowsMoveFromTitleBarOnly);
+            ImGui::Checkbox("io.MouseDrawCursor", &io.MouseDrawCursor);
+            ImGui::SameLine(); HelpMarker("Instruct Dear ImGui to render a mouse cursor itself. Note that a mouse cursor rendered via your application GPU rendering path will feel more laggy than hardware cursor, but will be more in sync with your other visuals.\n\nSome desktop applications may use both kinds of cursors (e.g. enable software cursor only when resizing/dragging something).");
+            ImGui::Text("Also see Style->Rendering for rendering options.");
+            ImGui::TreePop();
+            ImGui::Separator();
+        }
+
+        IMGUI_DEMO_MARKER("Configuration/Backend Flags");
+        if (ImGui::TreeNode("Backend Flags"))
+        {
+            HelpMarker(
+                "Those flags are set by the backends (imgui_impl_xxx files) to specify their capabilities.\n"
+                "Here we expose them as read-only fields to avoid breaking interactions with your backend.");
+
+            // Make a local copy to avoid modifying actual backend flags.
+            // FIXME: We don't use BeginDisabled() to keep label bright, maybe we need a BeginReadonly() equivalent..
+            ImGuiBackendFlags backend_flags = io.BackendFlags;
+            ImGui::CheckboxFlags("io.BackendFlags: HasGamepad",           &backend_flags, ImGuiBackendFlags_HasGamepad);
+            ImGui::CheckboxFlags("io.BackendFlags: HasMouseCursors",      &backend_flags, ImGuiBackendFlags_HasMouseCursors);
+            ImGui::CheckboxFlags("io.BackendFlags: HasSetMousePos",       &backend_flags, ImGuiBackendFlags_HasSetMousePos);
+            ImGui::CheckboxFlags("io.BackendFlags: RendererHasVtxOffset", &backend_flags, ImGuiBackendFlags_RendererHasVtxOffset);
+            ImGui::TreePop();
+            ImGui::Separator();
+        }
+
+        IMGUI_DEMO_MARKER("Configuration/Style");
+        if (ImGui::TreeNode("Style"))
+        {
+            HelpMarker("The same contents can be accessed in 'Tools->Style Editor' or by calling the ShowStyleEditor() function.");
+            ImGui::ShowStyleEditor();
+            ImGui::TreePop();
+            ImGui::Separator();
+        }
+
+        IMGUI_DEMO_MARKER("Configuration/Capture, Logging");
+        if (ImGui::TreeNode("Capture/Logging"))
+        {
+            HelpMarker(
+                "The logging API redirects all text output so you can easily capture the content of "
+                "a window or a block. Tree nodes can be automatically expanded.\n"
+                "Try opening any of the contents below in this window and then click one of the \"Log To\" button.");
+            ImGui::LogButtons();
+
+            HelpMarker("You can also call ImGui::LogText() to output directly to the log without a visual output.");
+            if (ImGui::Button("Copy \"Hello, world!\" to clipboard"))
+            {
+                ImGui::LogToClipboard();
+                ImGui::LogText("Hello, world!");
+                ImGui::LogFinish();
+            }
+            ImGui::TreePop();
+        }
+    }
+
+    IMGUI_DEMO_MARKER("Window options");
+    if (ImGui::CollapsingHeader("Window options"))
+    {
+        if (ImGui::BeginTable("split", 3))
+        {
+            ImGui::TableNextColumn(); ImGui::Checkbox("No titlebar", &no_titlebar);
+            ImGui::TableNextColumn(); ImGui::Checkbox("No scrollbar", &no_scrollbar);
+            ImGui::TableNextColumn(); ImGui::Checkbox("No menu", &no_menu);
+            ImGui::TableNextColumn(); ImGui::Checkbox("No move", &no_move);
+            ImGui::TableNextColumn(); ImGui::Checkbox("No resize", &no_resize);
+            ImGui::TableNextColumn(); ImGui::Checkbox("No collapse", &no_collapse);
+            ImGui::TableNextColumn(); ImGui::Checkbox("No close", &no_close);
+            ImGui::TableNextColumn(); ImGui::Checkbox("No nav", &no_nav);
+            ImGui::TableNextColumn(); ImGui::Checkbox("No background", &no_background);
+            ImGui::TableNextColumn(); ImGui::Checkbox("No bring to front", &no_bring_to_front);
+            ImGui::TableNextColumn(); ImGui::Checkbox("Unsaved document", &unsaved_document);
+            ImGui::EndTable();
+        }
+    }
+
+    // All demo contents
+    ShowDemoWindowWidgets();
+    ShowDemoWindowLayout();
+    ShowDemoWindowPopups();
+    ShowDemoWindowTables();
+    ShowDemoWindowMisc();
+
+    // End of ShowDemoWindow()
+    ImGui::PopItemWidth();
+    ImGui::End();
+}
+
+static void ShowDemoWindowWidgets()
+{
+    IMGUI_DEMO_MARKER("Widgets");
+    if (!ImGui::CollapsingHeader("Widgets"))
+        return;
+
+    static bool disable_all = false; // The Checkbox for that is inside the "Disabled" section at the bottom
+    if (disable_all)
+        ImGui::BeginDisabled();
+
+    IMGUI_DEMO_MARKER("Widgets/Basic");
+    if (ImGui::TreeNode("Basic"))
+    {
+        IMGUI_DEMO_MARKER("Widgets/Basic/Button");
+        static int clicked = 0;
+        if (ImGui::Button("Button"))
+            clicked++;
+        if (clicked & 1)
+        {
+            ImGui::SameLine();
+            ImGui::Text("Thanks for clicking me!");
+        }
+
+        IMGUI_DEMO_MARKER("Widgets/Basic/Checkbox");
+        static bool check = true;
+        ImGui::Checkbox("checkbox", &check);
+
+        IMGUI_DEMO_MARKER("Widgets/Basic/RadioButton");
+        static int e = 0;
+        ImGui::RadioButton("radio a", &e, 0); ImGui::SameLine();
+        ImGui::RadioButton("radio b", &e, 1); ImGui::SameLine();
+        ImGui::RadioButton("radio c", &e, 2);
+
+        // Color buttons, demonstrate using PushID() to add unique identifier in the ID stack, and changing style.
+        IMGUI_DEMO_MARKER("Widgets/Basic/Buttons (Colored)");
+        for (int i = 0; i < 7; i++)
+        {
+            if (i > 0)
+                ImGui::SameLine();
+            ImGui::PushID(i);
+            ImGui::PushStyleColor(ImGuiCol_Button, (ImVec4)ImColor::HSV(i / 7.0f, 0.6f, 0.6f));
+            ImGui::PushStyleColor(ImGuiCol_ButtonHovered, (ImVec4)ImColor::HSV(i / 7.0f, 0.7f, 0.7f));
+            ImGui::PushStyleColor(ImGuiCol_ButtonActive, (ImVec4)ImColor::HSV(i / 7.0f, 0.8f, 0.8f));
+            ImGui::Button("Click");
+            ImGui::PopStyleColor(3);
+            ImGui::PopID();
+        }
+
+        // Use AlignTextToFramePadding() to align text baseline to the baseline of framed widgets elements
+        // (otherwise a Text+SameLine+Button sequence will have the text a little too high by default!)
+        // See 'Demo->Layout->Text Baseline Alignment' for details.
+        ImGui::AlignTextToFramePadding();
+        ImGui::Text("Hold to repeat:");
+        ImGui::SameLine();
+
+        // Arrow buttons with Repeater
+        IMGUI_DEMO_MARKER("Widgets/Basic/Buttons (Repeating)");
+        static int counter = 0;
+        float spacing = ImGui::GetStyle().ItemInnerSpacing.x;
+        ImGui::PushButtonRepeat(true);
+        if (ImGui::ArrowButton("##left", ImGuiDir_Left)) { counter--; }
+        ImGui::SameLine(0.0f, spacing);
+        if (ImGui::ArrowButton("##right", ImGuiDir_Right)) { counter++; }
+        ImGui::PopButtonRepeat();
+        ImGui::SameLine();
+        ImGui::Text("%d", counter);
+
+        IMGUI_DEMO_MARKER("Widgets/Basic/Tooltips");
+        ImGui::Text("Hover over me");
+        if (ImGui::IsItemHovered())
+            ImGui::SetTooltip("I am a tooltip");
+
+        ImGui::SameLine();
+        ImGui::Text("- or me");
+        if (ImGui::IsItemHovered())
+        {
+            ImGui::BeginTooltip();
+            ImGui::Text("I am a fancy tooltip");
+            static float arr[] = { 0.6f, 0.1f, 1.0f, 0.5f, 0.92f, 0.1f, 0.2f };
+            ImGui::PlotLines("Curve", arr, IM_ARRAYSIZE(arr));
+            ImGui::EndTooltip();
+        }
+
+        ImGui::Separator();
+        ImGui::LabelText("label", "Value");
+
+        {
+            // Using the _simplified_ one-liner Combo() api here
+            // See "Combo" section for examples of how to use the more flexible BeginCombo()/EndCombo() api.
+            IMGUI_DEMO_MARKER("Widgets/Basic/Combo");
+            const char* items[] = { "AAAA", "BBBB", "CCCC", "DDDD", "EEEE", "FFFF", "GGGG", "HHHH", "IIIIIII", "JJJJ", "KKKKKKK" };
+            static int item_current = 0;
+            ImGui::Combo("combo", &item_current, items, IM_ARRAYSIZE(items));
+            ImGui::SameLine(); HelpMarker(
+                "Using the simplified one-liner Combo API here.\nRefer to the \"Combo\" section below for an explanation of how to use the more flexible and general BeginCombo/EndCombo API.");
+        }
+
+        {
+            // To wire InputText() with std::string or any other custom string type,
+            // see the "Text Input > Resize Callback" section of this demo, and the misc/cpp/imgui_stdlib.h file.
+            IMGUI_DEMO_MARKER("Widgets/Basic/InputText");
+            static char str0[128] = "Hello, world!";
+            ImGui::InputText("input text", str0, IM_ARRAYSIZE(str0));
+            ImGui::SameLine(); HelpMarker(
+                "USER:\n"
+                "Hold SHIFT or use mouse to select text.\n"
+                "CTRL+Left/Right to word jump.\n"
+                "CTRL+A or double-click to select all.\n"
+                "CTRL+X,CTRL+C,CTRL+V clipboard.\n"
+                "CTRL+Z,CTRL+Y undo/redo.\n"
+                "ESCAPE to revert.\n\n"
+                "PROGRAMMER:\n"
+                "You can use the ImGuiInputTextFlags_CallbackResize facility if you need to wire InputText() "
+                "to a dynamic string type. See misc/cpp/imgui_stdlib.h for an example (this is not demonstrated "
+                "in imgui_demo.cpp).");
+
+            static char str1[128] = "";
+            ImGui::InputTextWithHint("input text (w/ hint)", "enter text here", str1, IM_ARRAYSIZE(str1));
+
+            IMGUI_DEMO_MARKER("Widgets/Basic/InputInt, InputFloat");
+            static int i0 = 123;
+            ImGui::InputInt("input int", &i0);
+
+            static float f0 = 0.001f;
+            ImGui::InputFloat("input float", &f0, 0.01f, 1.0f, "%.3f");
+
+            static double d0 = 999999.00000001;
+            ImGui::InputDouble("input double", &d0, 0.01f, 1.0f, "%.8f");
+
+            static float f1 = 1.e10f;
+            ImGui::InputFloat("input scientific", &f1, 0.0f, 0.0f, "%e");
+            ImGui::SameLine(); HelpMarker(
+                "You can input value using the scientific notation,\n"
+                "  e.g. \"1e+8\" becomes \"100000000\".");
+
+            static float vec4a[4] = { 0.10f, 0.20f, 0.30f, 0.44f };
+            ImGui::InputFloat3("input float3", vec4a);
+        }
+
+        {
+            IMGUI_DEMO_MARKER("Widgets/Basic/DragInt, DragFloat");
+            static int i1 = 50, i2 = 42;
+            ImGui::DragInt("drag int", &i1, 1);
+            ImGui::SameLine(); HelpMarker(
+                "Click and drag to edit value.\n"
+                "Hold SHIFT/ALT for faster/slower edit.\n"
+                "Double-click or CTRL+click to input value.");
+
+            ImGui::DragInt("drag int 0..100", &i2, 1, 0, 100, "%d%%", ImGuiSliderFlags_AlwaysClamp);
+
+            static float f1 = 1.00f, f2 = 0.0067f;
+            ImGui::DragFloat("drag float", &f1, 0.005f);
+            ImGui::DragFloat("drag small float", &f2, 0.0001f, 0.0f, 0.0f, "%.06f ns");
+        }
+
+        {
+            IMGUI_DEMO_MARKER("Widgets/Basic/SliderInt, SliderFloat");
+            static int i1 = 0;
+            ImGui::SliderInt("slider int", &i1, -1, 3);
+            ImGui::SameLine(); HelpMarker("CTRL+click to input value.");
+
+            static float f1 = 0.123f, f2 = 0.0f;
+            ImGui::SliderFloat("slider float", &f1, 0.0f, 1.0f, "ratio = %.3f");
+            ImGui::SliderFloat("slider float (log)", &f2, -10.0f, 10.0f, "%.4f", ImGuiSliderFlags_Logarithmic);
+
+            IMGUI_DEMO_MARKER("Widgets/Basic/SliderAngle");
+            static float angle = 0.0f;
+            ImGui::SliderAngle("slider angle", &angle);
+
+            // Using the format string to display a name instead of an integer.
+            // Here we completely omit '%d' from the format string, so it'll only display a name.
+            // This technique can also be used with DragInt().
+            IMGUI_DEMO_MARKER("Widgets/Basic/Slider (enum)");
+            enum Element { Element_Fire, Element_Earth, Element_Air, Element_Water, Element_COUNT };
+            static int elem = Element_Fire;
+            const char* elems_names[Element_COUNT] = { "Fire", "Earth", "Air", "Water" };
+            const char* elem_name = (elem >= 0 && elem < Element_COUNT) ? elems_names[elem] : "Unknown";
+            ImGui::SliderInt("slider enum", &elem, 0, Element_COUNT - 1, elem_name);
+            ImGui::SameLine(); HelpMarker("Using the format string parameter to display a name instead of the underlying integer.");
+        }
+
+        {
+            IMGUI_DEMO_MARKER("Widgets/Basic/ColorEdit3, ColorEdit4");
+            static float col1[3] = { 1.0f, 0.0f, 0.2f };
+            static float col2[4] = { 0.4f, 0.7f, 0.0f, 0.5f };
+            ImGui::ColorEdit3("color 1", col1);
+            ImGui::SameLine(); HelpMarker(
+                "Click on the color square to open a color picker.\n"
+                "Click and hold to use drag and drop.\n"
+                "Right-click on the color square to show options.\n"
+                "CTRL+click on individual component to input value.\n");
+
+            ImGui::ColorEdit4("color 2", col2);
+        }
+
+        {
+            // Using the _simplified_ one-liner ListBox() api here
+            // See "List boxes" section for examples of how to use the more flexible BeginListBox()/EndListBox() api.
+            IMGUI_DEMO_MARKER("Widgets/Basic/ListBox");
+            const char* items[] = { "Apple", "Banana", "Cherry", "Kiwi", "Mango", "Orange", "Pineapple", "Strawberry", "Watermelon" };
+            static int item_current = 1;
+            ImGui::ListBox("listbox", &item_current, items, IM_ARRAYSIZE(items), 4);
+            ImGui::SameLine(); HelpMarker(
+                "Using the simplified one-liner ListBox API here.\nRefer to the \"List boxes\" section below for an explanation of how to use the more flexible and general BeginListBox/EndListBox API.");
+        }
+
+        ImGui::TreePop();
+    }
+
+    // Testing ImGuiOnceUponAFrame helper.
+    //static ImGuiOnceUponAFrame once;
+    //for (int i = 0; i < 5; i++)
+    //    if (once)
+    //        ImGui::Text("This will be displayed only once.");
+
+    IMGUI_DEMO_MARKER("Widgets/Trees");
+    if (ImGui::TreeNode("Trees"))
+    {
+        IMGUI_DEMO_MARKER("Widgets/Trees/Basic trees");
+        if (ImGui::TreeNode("Basic trees"))
+        {
+            for (int i = 0; i < 5; i++)
+            {
+                // Use SetNextItemOpen() so set the default state of a node to be open. We could
+                // also use TreeNodeEx() with the ImGuiTreeNodeFlags_DefaultOpen flag to achieve the same thing!
+                if (i == 0)
+                    ImGui::SetNextItemOpen(true, ImGuiCond_Once);
+
+                if (ImGui::TreeNode((void*)(intptr_t)i, "Child %d", i))
+                {
+                    ImGui::Text("blah blah");
+                    ImGui::SameLine();
+                    if (ImGui::SmallButton("button")) {}
+                    ImGui::TreePop();
+                }
+            }
+            ImGui::TreePop();
+        }
+
+        IMGUI_DEMO_MARKER("Widgets/Trees/Advanced, with Selectable nodes");
+        if (ImGui::TreeNode("Advanced, with Selectable nodes"))
+        {
+            HelpMarker(
+                "This is a more typical looking tree with selectable nodes.\n"
+                "Click to select, CTRL+Click to toggle, click on arrows or double-click to open.");
+            static ImGuiTreeNodeFlags base_flags = ImGuiTreeNodeFlags_OpenOnArrow | ImGuiTreeNodeFlags_OpenOnDoubleClick | ImGuiTreeNodeFlags_SpanAvailWidth;
+            static bool align_label_with_current_x_position = false;
+            static bool test_drag_and_drop = false;
+            ImGui::CheckboxFlags("ImGuiTreeNodeFlags_OpenOnArrow",       &base_flags, ImGuiTreeNodeFlags_OpenOnArrow);
+            ImGui::CheckboxFlags("ImGuiTreeNodeFlags_OpenOnDoubleClick", &base_flags, ImGuiTreeNodeFlags_OpenOnDoubleClick);
+            ImGui::CheckboxFlags("ImGuiTreeNodeFlags_SpanAvailWidth",    &base_flags, ImGuiTreeNodeFlags_SpanAvailWidth); ImGui::SameLine(); HelpMarker("Extend hit area to all available width instead of allowing more items to be laid out after the node.");
+            ImGui::CheckboxFlags("ImGuiTreeNodeFlags_SpanFullWidth",     &base_flags, ImGuiTreeNodeFlags_SpanFullWidth);
+            ImGui::Checkbox("Align label with current X position", &align_label_with_current_x_position);
+            ImGui::Checkbox("Test tree node as drag source", &test_drag_and_drop);
+            ImGui::Text("Hello!");
+            if (align_label_with_current_x_position)
+                ImGui::Unindent(ImGui::GetTreeNodeToLabelSpacing());
+
+            // 'selection_mask' is dumb representation of what may be user-side selection state.
+            //  You may retain selection state inside or outside your objects in whatever format you see fit.
+            // 'node_clicked' is temporary storage of what node we have clicked to process selection at the end
+            /// of the loop. May be a pointer to your own node type, etc.
+            static int selection_mask = (1 << 2);
+            int node_clicked = -1;
+            for (int i = 0; i < 6; i++)
+            {
+                // Disable the default "open on single-click behavior" + set Selected flag according to our selection.
+                // To alter selection we use IsItemClicked() && !IsItemToggledOpen(), so clicking on an arrow doesn't alter selection.
+                ImGuiTreeNodeFlags node_flags = base_flags;
+                const bool is_selected = (selection_mask & (1 << i)) != 0;
+                if (is_selected)
+                    node_flags |= ImGuiTreeNodeFlags_Selected;
+                if (i < 3)
+                {
+                    // Items 0..2 are Tree Node
+                    bool node_open = ImGui::TreeNodeEx((void*)(intptr_t)i, node_flags, "Selectable Node %d", i);
+                    if (ImGui::IsItemClicked() && !ImGui::IsItemToggledOpen())
+                        node_clicked = i;
+                    if (test_drag_and_drop && ImGui::BeginDragDropSource())
+                    {
+                        ImGui::SetDragDropPayload("_TREENODE", NULL, 0);
+                        ImGui::Text("This is a drag and drop source");
+                        ImGui::EndDragDropSource();
+                    }
+                    if (node_open)
+                    {
+                        ImGui::BulletText("Blah blah\nBlah Blah");
+                        ImGui::TreePop();
+                    }
+                }
+                else
+                {
+                    // Items 3..5 are Tree Leaves
+                    // The only reason we use TreeNode at all is to allow selection of the leaf. Otherwise we can
+                    // use BulletText() or advance the cursor by GetTreeNodeToLabelSpacing() and call Text().
+                    node_flags |= ImGuiTreeNodeFlags_Leaf | ImGuiTreeNodeFlags_NoTreePushOnOpen; // ImGuiTreeNodeFlags_Bullet
+                    ImGui::TreeNodeEx((void*)(intptr_t)i, node_flags, "Selectable Leaf %d", i);
+                    if (ImGui::IsItemClicked() && !ImGui::IsItemToggledOpen())
+                        node_clicked = i;
+                    if (test_drag_and_drop && ImGui::BeginDragDropSource())
+                    {
+                        ImGui::SetDragDropPayload("_TREENODE", NULL, 0);
+                        ImGui::Text("This is a drag and drop source");
+                        ImGui::EndDragDropSource();
+                    }
+                }
+            }
+            if (node_clicked != -1)
+            {
+                // Update selection state
+                // (process outside of tree loop to avoid visual inconsistencies during the clicking frame)
+                if (ImGui::GetIO().KeyCtrl)
+                    selection_mask ^= (1 << node_clicked);          // CTRL+click to toggle
+                else //if (!(selection_mask & (1 << node_clicked))) // Depending on selection behavior you want, may want to preserve selection when clicking on item that is part of the selection
+                    selection_mask = (1 << node_clicked);           // Click to single-select
+            }
+            if (align_label_with_current_x_position)
+                ImGui::Indent(ImGui::GetTreeNodeToLabelSpacing());
+            ImGui::TreePop();
+        }
+        ImGui::TreePop();
+    }
+
+    IMGUI_DEMO_MARKER("Widgets/Collapsing Headers");
+    if (ImGui::TreeNode("Collapsing Headers"))
+    {
+        static bool closable_group = true;
+        ImGui::Checkbox("Show 2nd header", &closable_group);
+        if (ImGui::CollapsingHeader("Header", ImGuiTreeNodeFlags_None))
+        {
+            ImGui::Text("IsItemHovered: %d", ImGui::IsItemHovered());
+            for (int i = 0; i < 5; i++)
+                ImGui::Text("Some content %d", i);
+        }
+        if (ImGui::CollapsingHeader("Header with a close button", &closable_group))
+        {
+            ImGui::Text("IsItemHovered: %d", ImGui::IsItemHovered());
+            for (int i = 0; i < 5; i++)
+                ImGui::Text("More content %d", i);
+        }
+        /*
+        if (ImGui::CollapsingHeader("Header with a bullet", ImGuiTreeNodeFlags_Bullet))
+            ImGui::Text("IsItemHovered: %d", ImGui::IsItemHovered());
+        */
+        ImGui::TreePop();
+    }
+
+    IMGUI_DEMO_MARKER("Widgets/Bullets");
+    if (ImGui::TreeNode("Bullets"))
+    {
+        ImGui::BulletText("Bullet point 1");
+        ImGui::BulletText("Bullet point 2\nOn multiple lines");
+        if (ImGui::TreeNode("Tree node"))
+        {
+            ImGui::BulletText("Another bullet point");
+            ImGui::TreePop();
+        }
+        ImGui::Bullet(); ImGui::Text("Bullet point 3 (two calls)");
+        ImGui::Bullet(); ImGui::SmallButton("Button");
+        ImGui::TreePop();
+    }
+
+    IMGUI_DEMO_MARKER("Widgets/Text");
+    if (ImGui::TreeNode("Text"))
+    {
+        IMGUI_DEMO_MARKER("Widgets/Text/Colored Text");
+        if (ImGui::TreeNode("Colorful Text"))
+        {
+            // Using shortcut. You can use PushStyleColor()/PopStyleColor() for more flexibility.
+            ImGui::TextColored(ImVec4(1.0f, 0.0f, 1.0f, 1.0f), "Pink");
+            ImGui::TextColored(ImVec4(1.0f, 1.0f, 0.0f, 1.0f), "Yellow");
+            ImGui::TextDisabled("Disabled");
+            ImGui::SameLine(); HelpMarker("The TextDisabled color is stored in ImGuiStyle.");
+            ImGui::TreePop();
+        }
+
+        IMGUI_DEMO_MARKER("Widgets/Text/Word Wrapping");
+        if (ImGui::TreeNode("Word Wrapping"))
+        {
+            // Using shortcut. You can use PushTextWrapPos()/PopTextWrapPos() for more flexibility.
+            ImGui::TextWrapped(
+                "This text should automatically wrap on the edge of the window. The current implementation "
+                "for text wrapping follows simple rules suitable for English and possibly other languages.");
+            ImGui::Spacing();
+
+            static float wrap_width = 200.0f;
+            ImGui::SliderFloat("Wrap width", &wrap_width, -20, 600, "%.0f");
+
+            ImDrawList* draw_list = ImGui::GetWindowDrawList();
+            for (int n = 0; n < 2; n++)
+            {
+                ImGui::Text("Test paragraph %d:", n);
+                ImVec2 pos = ImGui::GetCursorScreenPos();
+                ImVec2 marker_min = ImVec2(pos.x + wrap_width, pos.y);
+                ImVec2 marker_max = ImVec2(pos.x + wrap_width + 10, pos.y + ImGui::GetTextLineHeight());
+                ImGui::PushTextWrapPos(ImGui::GetCursorPos().x + wrap_width);
+                if (n == 0)
+                    ImGui::Text("The lazy dog is a good dog. This paragraph should fit within %.0f pixels. Testing a 1 character word. The quick brown fox jumps over the lazy dog.", wrap_width);
+                else
+                    ImGui::Text("aaaaaaaa bbbbbbbb, c cccccccc,dddddddd. d eeeeeeee   ffffffff. gggggggg!hhhhhhhh");
+
+                // Draw actual text bounding box, following by marker of our expected limit (should not overlap!)
+                draw_list->AddRect(ImGui::GetItemRectMin(), ImGui::GetItemRectMax(), IM_COL32(255, 255, 0, 255));
+                draw_list->AddRectFilled(marker_min, marker_max, IM_COL32(255, 0, 255, 255));
+                ImGui::PopTextWrapPos();
+            }
+
+            ImGui::TreePop();
+        }
+
+        IMGUI_DEMO_MARKER("Widgets/Text/UTF-8 Text");
+        if (ImGui::TreeNode("UTF-8 Text"))
+        {
+            // UTF-8 test with Japanese characters
+            // (Needs a suitable font? Try "Google Noto" or "Arial Unicode". See docs/FONTS.md for details.)
+            // - From C++11 you can use the u8"my text" syntax to encode literal strings as UTF-8
+            // - For earlier compiler, you may be able to encode your sources as UTF-8 (e.g. in Visual Studio, you
+            //   can save your source files as 'UTF-8 without signature').
+            // - FOR THIS DEMO FILE ONLY, BECAUSE WE WANT TO SUPPORT OLD COMPILERS, WE ARE *NOT* INCLUDING RAW UTF-8
+            //   CHARACTERS IN THIS SOURCE FILE. Instead we are encoding a few strings with hexadecimal constants.
+            //   Don't do this in your application! Please use u8"text in any language" in your application!
+            // Note that characters values are preserved even by InputText() if the font cannot be displayed,
+            // so you can safely copy & paste garbled characters into another application.
+            ImGui::TextWrapped(
+                "CJK text will only appears if the font was loaded with the appropriate CJK character ranges. "
+                "Call io.Fonts->AddFontFromFileTTF() manually to load extra character ranges. "
+                "Read docs/FONTS.md for details.");
+            ImGui::Text("Hiragana: \xe3\x81\x8b\xe3\x81\x8d\xe3\x81\x8f\xe3\x81\x91\xe3\x81\x93 (kakikukeko)"); // Normally we would use u8"blah blah" with the proper characters directly in the string.
+            ImGui::Text("Kanjis: \xe6\x97\xa5\xe6\x9c\xac\xe8\xaa\x9e (nihongo)");
+            static char buf[32] = "\xe6\x97\xa5\xe6\x9c\xac\xe8\xaa\x9e";
+            //static char buf[32] = u8"NIHONGO"; // <- this is how you would write it with C++11, using real kanjis
+            ImGui::InputText("UTF-8 input", buf, IM_ARRAYSIZE(buf));
+            ImGui::TreePop();
+        }
+        ImGui::TreePop();
+    }
+
+    IMGUI_DEMO_MARKER("Widgets/Images");
+    if (ImGui::TreeNode("Images"))
+    {
+        ImGuiIO& io = ImGui::GetIO();
+        ImGui::TextWrapped(
+            "Below we are displaying the font texture (which is the only texture we have access to in this demo). "
+            "Use the 'ImTextureID' type as storage to pass pointers or identifier to your own texture data. "
+            "Hover the texture for a zoomed view!");
+
+        // Below we are displaying the font texture because it is the only texture we have access to inside the demo!
+        // Remember that ImTextureID is just storage for whatever you want it to be. It is essentially a value that
+        // will be passed to the rendering backend via the ImDrawCmd structure.
+        // If you use one of the default imgui_impl_XXXX.cpp rendering backend, they all have comments at the top
+        // of their respective source file to specify what they expect to be stored in ImTextureID, for example:
+        // - The imgui_impl_dx11.cpp renderer expect a 'ID3D11ShaderResourceView*' pointer
+        // - The imgui_impl_opengl3.cpp renderer expect a GLuint OpenGL texture identifier, etc.
+        // More:
+        // - If you decided that ImTextureID = MyEngineTexture*, then you can pass your MyEngineTexture* pointers
+        //   to ImGui::Image(), and gather width/height through your own functions, etc.
+        // - You can use ShowMetricsWindow() to inspect the draw data that are being passed to your renderer,
+        //   it will help you debug issues if you are confused about it.
+        // - Consider using the lower-level ImDrawList::AddImage() API, via ImGui::GetWindowDrawList()->AddImage().
+        // - Read https://github.com/ocornut/imgui/blob/master/docs/FAQ.md
+        // - Read https://github.com/ocornut/imgui/wiki/Image-Loading-and-Displaying-Examples
+        ImTextureID my_tex_id = io.Fonts->TexID;
+        float my_tex_w = (float)io.Fonts->TexWidth;
+        float my_tex_h = (float)io.Fonts->TexHeight;
+        {
+            ImGui::Text("%.0fx%.0f", my_tex_w, my_tex_h);
+            ImVec2 pos = ImGui::GetCursorScreenPos();
+            ImVec2 uv_min = ImVec2(0.0f, 0.0f);                 // Top-left
+            ImVec2 uv_max = ImVec2(1.0f, 1.0f);                 // Lower-right
+            ImVec4 tint_col = ImVec4(1.0f, 1.0f, 1.0f, 1.0f);   // No tint
+            ImVec4 border_col = ImVec4(1.0f, 1.0f, 1.0f, 0.5f); // 50% opaque white
+            ImGui::Image(my_tex_id, ImVec2(my_tex_w, my_tex_h), uv_min, uv_max, tint_col, border_col);
+            if (ImGui::IsItemHovered())
+            {
+                ImGui::BeginTooltip();
+                float region_sz = 32.0f;
+                float region_x = io.MousePos.x - pos.x - region_sz * 0.5f;
+                float region_y = io.MousePos.y - pos.y - region_sz * 0.5f;
+                float zoom = 4.0f;
+                if (region_x < 0.0f) { region_x = 0.0f; }
+                else if (region_x > my_tex_w - region_sz) { region_x = my_tex_w - region_sz; }
+                if (region_y < 0.0f) { region_y = 0.0f; }
+                else if (region_y > my_tex_h - region_sz) { region_y = my_tex_h - region_sz; }
+                ImGui::Text("Min: (%.2f, %.2f)", region_x, region_y);
+                ImGui::Text("Max: (%.2f, %.2f)", region_x + region_sz, region_y + region_sz);
+                ImVec2 uv0 = ImVec2((region_x) / my_tex_w, (region_y) / my_tex_h);
+                ImVec2 uv1 = ImVec2((region_x + region_sz) / my_tex_w, (region_y + region_sz) / my_tex_h);
+                ImGui::Image(my_tex_id, ImVec2(region_sz * zoom, region_sz * zoom), uv0, uv1, tint_col, border_col);
+                ImGui::EndTooltip();
+            }
+        }
+
+        IMGUI_DEMO_MARKER("Widgets/Images/Textured buttons");
+        ImGui::TextWrapped("And now some textured buttons..");
+        static int pressed_count = 0;
+        for (int i = 0; i < 8; i++)
+        {
+            ImGui::PushID(i);
+            int frame_padding = -1 + i;                             // -1 == uses default padding (style.FramePadding)
+            ImVec2 size = ImVec2(32.0f, 32.0f);                     // Size of the image we want to make visible
+            ImVec2 uv0 = ImVec2(0.0f, 0.0f);                        // UV coordinates for lower-left
+            ImVec2 uv1 = ImVec2(32.0f / my_tex_w, 32.0f / my_tex_h);// UV coordinates for (32,32) in our texture
+            ImVec4 bg_col = ImVec4(0.0f, 0.0f, 0.0f, 1.0f);         // Black background
+            ImVec4 tint_col = ImVec4(1.0f, 1.0f, 1.0f, 1.0f);       // No tint
+            if (ImGui::ImageButton(my_tex_id, size, uv0, uv1, frame_padding, bg_col, tint_col))
+                pressed_count += 1;
+            ImGui::PopID();
+            ImGui::SameLine();
+        }
+        ImGui::NewLine();
+        ImGui::Text("Pressed %d times.", pressed_count);
+        ImGui::TreePop();
+    }
+
+    IMGUI_DEMO_MARKER("Widgets/Combo");
+    if (ImGui::TreeNode("Combo"))
+    {
+        // Expose flags as checkbox for the demo
+        static ImGuiComboFlags flags = 0;
+        ImGui::CheckboxFlags("ImGuiComboFlags_PopupAlignLeft", &flags, ImGuiComboFlags_PopupAlignLeft);
+        ImGui::SameLine(); HelpMarker("Only makes a difference if the popup is larger than the combo");
+        if (ImGui::CheckboxFlags("ImGuiComboFlags_NoArrowButton", &flags, ImGuiComboFlags_NoArrowButton))
+            flags &= ~ImGuiComboFlags_NoPreview;     // Clear the other flag, as we cannot combine both
+        if (ImGui::CheckboxFlags("ImGuiComboFlags_NoPreview", &flags, ImGuiComboFlags_NoPreview))
+            flags &= ~ImGuiComboFlags_NoArrowButton; // Clear the other flag, as we cannot combine both
+
+        // Using the generic BeginCombo() API, you have full control over how to display the combo contents.
+        // (your selection data could be an index, a pointer to the object, an id for the object, a flag intrusively
+        // stored in the object itself, etc.)
+        const char* items[] = { "AAAA", "BBBB", "CCCC", "DDDD", "EEEE", "FFFF", "GGGG", "HHHH", "IIII", "JJJJ", "KKKK", "LLLLLLL", "MMMM", "OOOOOOO" };
+        static int item_current_idx = 0; // Here we store our selection data as an index.
+        const char* combo_preview_value = items[item_current_idx];  // Pass in the preview value visible before opening the combo (it could be anything)
+        if (ImGui::BeginCombo("combo 1", combo_preview_value, flags))
+        {
+            for (int n = 0; n < IM_ARRAYSIZE(items); n++)
+            {
+                const bool is_selected = (item_current_idx == n);
+                if (ImGui::Selectable(items[n], is_selected))
+                    item_current_idx = n;
+
+                // Set the initial focus when opening the combo (scrolling + keyboard navigation focus)
+                if (is_selected)
+                    ImGui::SetItemDefaultFocus();
+            }
+            ImGui::EndCombo();
+        }
+
+        // Simplified one-liner Combo() API, using values packed in a single constant string
+        // This is a convenience for when the selection set is small and known at compile-time.
+        static int item_current_2 = 0;
+        ImGui::Combo("combo 2 (one-liner)", &item_current_2, "aaaa\0bbbb\0cccc\0dddd\0eeee\0\0");
+
+        // Simplified one-liner Combo() using an array of const char*
+        // This is not very useful (may obsolete): prefer using BeginCombo()/EndCombo() for full control.
+        static int item_current_3 = -1; // If the selection isn't within 0..count, Combo won't display a preview
+        ImGui::Combo("combo 3 (array)", &item_current_3, items, IM_ARRAYSIZE(items));
+
+        // Simplified one-liner Combo() using an accessor function
+        struct Funcs { static bool ItemGetter(void* data, int n, const char** out_str) { *out_str = ((const char**)data)[n]; return true; } };
+        static int item_current_4 = 0;
+        ImGui::Combo("combo 4 (function)", &item_current_4, &Funcs::ItemGetter, items, IM_ARRAYSIZE(items));
+
+        ImGui::TreePop();
+    }
+
+    IMGUI_DEMO_MARKER("Widgets/List Boxes");
+    if (ImGui::TreeNode("List boxes"))
+    {
+        // Using the generic BeginListBox() API, you have full control over how to display the combo contents.
+        // (your selection data could be an index, a pointer to the object, an id for the object, a flag intrusively
+        // stored in the object itself, etc.)
+        const char* items[] = { "AAAA", "BBBB", "CCCC", "DDDD", "EEEE", "FFFF", "GGGG", "HHHH", "IIII", "JJJJ", "KKKK", "LLLLLLL", "MMMM", "OOOOOOO" };
+        static int item_current_idx = 0; // Here we store our selection data as an index.
+        if (ImGui::BeginListBox("listbox 1"))
+        {
+            for (int n = 0; n < IM_ARRAYSIZE(items); n++)
+            {
+                const bool is_selected = (item_current_idx == n);
+                if (ImGui::Selectable(items[n], is_selected))
+                    item_current_idx = n;
+
+                // Set the initial focus when opening the combo (scrolling + keyboard navigation focus)
+                if (is_selected)
+                    ImGui::SetItemDefaultFocus();
+            }
+            ImGui::EndListBox();
+        }
+
+        // Custom size: use all width, 5 items tall
+        ImGui::Text("Full-width:");
+        if (ImGui::BeginListBox("##listbox 2", ImVec2(-FLT_MIN, 5 * ImGui::GetTextLineHeightWithSpacing())))
+        {
+            for (int n = 0; n < IM_ARRAYSIZE(items); n++)
+            {
+                const bool is_selected = (item_current_idx == n);
+                if (ImGui::Selectable(items[n], is_selected))
+                    item_current_idx = n;
+
+                // Set the initial focus when opening the combo (scrolling + keyboard navigation focus)
+                if (is_selected)
+                    ImGui::SetItemDefaultFocus();
+            }
+            ImGui::EndListBox();
+        }
+
+        ImGui::TreePop();
+    }
+
+    IMGUI_DEMO_MARKER("Widgets/Selectables");
+    if (ImGui::TreeNode("Selectables"))
+    {
+        // Selectable() has 2 overloads:
+        // - The one taking "bool selected" as a read-only selection information.
+        //   When Selectable() has been clicked it returns true and you can alter selection state accordingly.
+        // - The one taking "bool* p_selected" as a read-write selection information (convenient in some cases)
+        // The earlier is more flexible, as in real application your selection may be stored in many different ways
+        // and not necessarily inside a bool value (e.g. in flags within objects, as an external list, etc).
+        IMGUI_DEMO_MARKER("Widgets/Selectables/Basic");
+        if (ImGui::TreeNode("Basic"))
+        {
+            static bool selection[5] = { false, true, false, false, false };
+            ImGui::Selectable("1. I am selectable", &selection[0]);
+            ImGui::Selectable("2. I am selectable", &selection[1]);
+            ImGui::Text("(I am not selectable)");
+            ImGui::Selectable("4. I am selectable", &selection[3]);
+            if (ImGui::Selectable("5. I am double clickable", selection[4], ImGuiSelectableFlags_AllowDoubleClick))
+                if (ImGui::IsMouseDoubleClicked(0))
+                    selection[4] = !selection[4];
+            ImGui::TreePop();
+        }
+        IMGUI_DEMO_MARKER("Widgets/Selectables/Single Selection");
+        if (ImGui::TreeNode("Selection State: Single Selection"))
+        {
+            static int selected = -1;
+            for (int n = 0; n < 5; n++)
+            {
+                char buf[32];
+                sprintf(buf, "Object %d", n);
+                if (ImGui::Selectable(buf, selected == n))
+                    selected = n;
+            }
+            ImGui::TreePop();
+        }
+        IMGUI_DEMO_MARKER("Widgets/Selectables/Multiple Selection");
+        if (ImGui::TreeNode("Selection State: Multiple Selection"))
+        {
+            HelpMarker("Hold CTRL and click to select multiple items.");
+            static bool selection[5] = { false, false, false, false, false };
+            for (int n = 0; n < 5; n++)
+            {
+                char buf[32];
+                sprintf(buf, "Object %d", n);
+                if (ImGui::Selectable(buf, selection[n]))
+                {
+                    if (!ImGui::GetIO().KeyCtrl)    // Clear selection when CTRL is not held
+                        memset(selection, 0, sizeof(selection));
+                    selection[n] ^= 1;
+                }
+            }
+            ImGui::TreePop();
+        }
+        IMGUI_DEMO_MARKER("Widgets/Selectables/Rendering more text into the same line");
+        if (ImGui::TreeNode("Rendering more text into the same line"))
+        {
+            // Using the Selectable() override that takes "bool* p_selected" parameter,
+            // this function toggle your bool value automatically.
+            static bool selected[3] = { false, false, false };
+            ImGui::Selectable("main.c",    &selected[0]); ImGui::SameLine(300); ImGui::Text(" 2,345 bytes");
+            ImGui::Selectable("Hello.cpp", &selected[1]); ImGui::SameLine(300); ImGui::Text("12,345 bytes");
+            ImGui::Selectable("Hello.h",   &selected[2]); ImGui::SameLine(300); ImGui::Text(" 2,345 bytes");
+            ImGui::TreePop();
+        }
+        IMGUI_DEMO_MARKER("Widgets/Selectables/In columns");
+        if (ImGui::TreeNode("In columns"))
+        {
+            static bool selected[10] = {};
+
+            if (ImGui::BeginTable("split1", 3, ImGuiTableFlags_Resizable | ImGuiTableFlags_NoSavedSettings | ImGuiTableFlags_Borders))
+            {
+                for (int i = 0; i < 10; i++)
+                {
+                    char label[32];
+                    sprintf(label, "Item %d", i);
+                    ImGui::TableNextColumn();
+                    ImGui::Selectable(label, &selected[i]); // FIXME-TABLE: Selection overlap
+                }
+                ImGui::EndTable();
+            }
+            ImGui::Spacing();
+            if (ImGui::BeginTable("split2", 3, ImGuiTableFlags_Resizable | ImGuiTableFlags_NoSavedSettings | ImGuiTableFlags_Borders))
+            {
+                for (int i = 0; i < 10; i++)
+                {
+                    char label[32];
+                    sprintf(label, "Item %d", i);
+                    ImGui::TableNextRow();
+                    ImGui::TableNextColumn();
+                    ImGui::Selectable(label, &selected[i], ImGuiSelectableFlags_SpanAllColumns);
+                    ImGui::TableNextColumn();
+                    ImGui::Text("Some other contents");
+                    ImGui::TableNextColumn();
+                    ImGui::Text("123456");
+                }
+                ImGui::EndTable();
+            }
+            ImGui::TreePop();
+        }
+        IMGUI_DEMO_MARKER("Widgets/Selectables/Grid");
+        if (ImGui::TreeNode("Grid"))
+        {
+            static char selected[4][4] = { { 1, 0, 0, 0 }, { 0, 1, 0, 0 }, { 0, 0, 1, 0 }, { 0, 0, 0, 1 } };
+
+            // Add in a bit of silly fun...
+            const float time = (float)ImGui::GetTime();
+            const bool winning_state = memchr(selected, 0, sizeof(selected)) == NULL; // If all cells are selected...
+            if (winning_state)
+                ImGui::PushStyleVar(ImGuiStyleVar_SelectableTextAlign, ImVec2(0.5f + 0.5f * cosf(time * 2.0f), 0.5f + 0.5f * sinf(time * 3.0f)));
+
+            for (int y = 0; y < 4; y++)
+                for (int x = 0; x < 4; x++)
+                {
+                    if (x > 0)
+                        ImGui::SameLine();
+                    ImGui::PushID(y * 4 + x);
+                    if (ImGui::Selectable("Sailor", selected[y][x] != 0, 0, ImVec2(50, 50)))
+                    {
+                        // Toggle clicked cell + toggle neighbors
+                        selected[y][x] ^= 1;
+                        if (x > 0) { selected[y][x - 1] ^= 1; }
+                        if (x < 3) { selected[y][x + 1] ^= 1; }
+                        if (y > 0) { selected[y - 1][x] ^= 1; }
+                        if (y < 3) { selected[y + 1][x] ^= 1; }
+                    }
+                    ImGui::PopID();
+                }
+
+            if (winning_state)
+                ImGui::PopStyleVar();
+            ImGui::TreePop();
+        }
+        IMGUI_DEMO_MARKER("Widgets/Selectables/Alignment");
+        if (ImGui::TreeNode("Alignment"))
+        {
+            HelpMarker(
+                "By default, Selectables uses style.SelectableTextAlign but it can be overridden on a per-item "
+                "basis using PushStyleVar(). You'll probably want to always keep your default situation to "
+                "left-align otherwise it becomes difficult to layout multiple items on a same line");
+            static bool selected[3 * 3] = { true, false, true, false, true, false, true, false, true };
+            for (int y = 0; y < 3; y++)
+            {
+                for (int x = 0; x < 3; x++)
+                {
+                    ImVec2 alignment = ImVec2((float)x / 2.0f, (float)y / 2.0f);
+                    char name[32];
+                    sprintf(name, "(%.1f,%.1f)", alignment.x, alignment.y);
+                    if (x > 0) ImGui::SameLine();
+                    ImGui::PushStyleVar(ImGuiStyleVar_SelectableTextAlign, alignment);
+                    ImGui::Selectable(name, &selected[3 * y + x], ImGuiSelectableFlags_None, ImVec2(80, 80));
+                    ImGui::PopStyleVar();
+                }
+            }
+            ImGui::TreePop();
+        }
+        ImGui::TreePop();
+    }
+
+    // To wire InputText() with std::string or any other custom string type,
+    // see the "Text Input > Resize Callback" section of this demo, and the misc/cpp/imgui_stdlib.h file.
+    IMGUI_DEMO_MARKER("Widgets/Text Input");
+    if (ImGui::TreeNode("Text Input"))
+    {
+        IMGUI_DEMO_MARKER("Widgets/Text Input/Multi-line Text Input");
+        if (ImGui::TreeNode("Multi-line Text Input"))
+        {
+            // Note: we are using a fixed-sized buffer for simplicity here. See ImGuiInputTextFlags_CallbackResize
+            // and the code in misc/cpp/imgui_stdlib.h for how to setup InputText() for dynamically resizing strings.
+            static char text[1024 * 16] =
+                "/*\n"
+                " The Pentium F00F bug, shorthand for F0 0F C7 C8,\n"
+                " the hexadecimal encoding of one offending instruction,\n"
+                " more formally, the invalid operand with locked CMPXCHG8B\n"
+                " instruction bug, is a design flaw in the majority of\n"
+                " Intel Pentium, Pentium MMX, and Pentium OverDrive\n"
+                " processors (all in the P5 microarchitecture).\n"
+                "*/\n\n"
+                "label:\n"
+                "\tlock cmpxchg8b eax\n";
+
+            static ImGuiInputTextFlags flags = ImGuiInputTextFlags_AllowTabInput;
+            HelpMarker("You can use the ImGuiInputTextFlags_CallbackResize facility if you need to wire InputTextMultiline() to a dynamic string type. See misc/cpp/imgui_stdlib.h for an example. (This is not demonstrated in imgui_demo.cpp because we don't want to include <string> in here)");
+            ImGui::CheckboxFlags("ImGuiInputTextFlags_ReadOnly", &flags, ImGuiInputTextFlags_ReadOnly);
+            ImGui::CheckboxFlags("ImGuiInputTextFlags_AllowTabInput", &flags, ImGuiInputTextFlags_AllowTabInput);
+            ImGui::CheckboxFlags("ImGuiInputTextFlags_CtrlEnterForNewLine", &flags, ImGuiInputTextFlags_CtrlEnterForNewLine);
+            ImGui::InputTextMultiline("##source", text, IM_ARRAYSIZE(text), ImVec2(-FLT_MIN, ImGui::GetTextLineHeight() * 16), flags);
+            ImGui::TreePop();
+        }
+
+        IMGUI_DEMO_MARKER("Widgets/Text Input/Filtered Text Input");
+        if (ImGui::TreeNode("Filtered Text Input"))
+        {
+            struct TextFilters
+            {
+                // Return 0 (pass) if the character is 'i' or 'm' or 'g' or 'u' or 'i'
+                static int FilterImGuiLetters(ImGuiInputTextCallbackData* data)
+                {
+                    if (data->EventChar < 256 && strchr("imgui", (char)data->EventChar))
+                        return 0;
+                    return 1;
+                }
+            };
+
+            static char buf1[64] = ""; ImGui::InputText("default",     buf1, 64);
+            static char buf2[64] = ""; ImGui::InputText("decimal",     buf2, 64, ImGuiInputTextFlags_CharsDecimal);
+            static char buf3[64] = ""; ImGui::InputText("hexadecimal", buf3, 64, ImGuiInputTextFlags_CharsHexadecimal | ImGuiInputTextFlags_CharsUppercase);
+            static char buf4[64] = ""; ImGui::InputText("uppercase",   buf4, 64, ImGuiInputTextFlags_CharsUppercase);
+            static char buf5[64] = ""; ImGui::InputText("no blank",    buf5, 64, ImGuiInputTextFlags_CharsNoBlank);
+            static char buf6[64] = ""; ImGui::InputText("\"imgui\" letters", buf6, 64, ImGuiInputTextFlags_CallbackCharFilter, TextFilters::FilterImGuiLetters);
+            ImGui::TreePop();
+        }
+
+        IMGUI_DEMO_MARKER("Widgets/Text Input/Password input");
+        if (ImGui::TreeNode("Password Input"))
+        {
+            static char password[64] = "password123";
+            ImGui::InputText("password", password, IM_ARRAYSIZE(password), ImGuiInputTextFlags_Password);
+            ImGui::SameLine(); HelpMarker("Display all characters as '*'.\nDisable clipboard cut and copy.\nDisable logging.\n");
+            ImGui::InputTextWithHint("password (w/ hint)", "<password>", password, IM_ARRAYSIZE(password), ImGuiInputTextFlags_Password);
+            ImGui::InputText("password (clear)", password, IM_ARRAYSIZE(password));
+            ImGui::TreePop();
+        }
+
+        if (ImGui::TreeNode("Completion, History, Edit Callbacks"))
+        {
+            struct Funcs
+            {
+                static int MyCallback(ImGuiInputTextCallbackData* data)
+                {
+                    if (data->EventFlag == ImGuiInputTextFlags_CallbackCompletion)
+                    {
+                        data->InsertChars(data->CursorPos, "..");
+                    }
+                    else if (data->EventFlag == ImGuiInputTextFlags_CallbackHistory)
+                    {
+                        if (data->EventKey == ImGuiKey_UpArrow)
+                        {
+                            data->DeleteChars(0, data->BufTextLen);
+                            data->InsertChars(0, "Pressed Up!");
+                            data->SelectAll();
+                        }
+                        else if (data->EventKey == ImGuiKey_DownArrow)
+                        {
+                            data->DeleteChars(0, data->BufTextLen);
+                            data->InsertChars(0, "Pressed Down!");
+                            data->SelectAll();
+                        }
+                    }
+                    else if (data->EventFlag == ImGuiInputTextFlags_CallbackEdit)
+                    {
+                        // Toggle casing of first character
+                        char c = data->Buf[0];
+                        if ((c >= 'a' && c <= 'z') || (c >= 'A' && c <= 'Z')) data->Buf[0] ^= 32;
+                        data->BufDirty = true;
+
+                        // Increment a counter
+                        int* p_int = (int*)data->UserData;
+                        *p_int = *p_int + 1;
+                    }
+                    return 0;
+                }
+            };
+            static char buf1[64];
+            ImGui::InputText("Completion", buf1, 64, ImGuiInputTextFlags_CallbackCompletion, Funcs::MyCallback);
+            ImGui::SameLine(); HelpMarker("Here we append \"..\" each time Tab is pressed. See 'Examples>Console' for a more meaningful demonstration of using this callback.");
+
+            static char buf2[64];
+            ImGui::InputText("History", buf2, 64, ImGuiInputTextFlags_CallbackHistory, Funcs::MyCallback);
+            ImGui::SameLine(); HelpMarker("Here we replace and select text each time Up/Down are pressed. See 'Examples>Console' for a more meaningful demonstration of using this callback.");
+
+            static char buf3[64];
+            static int edit_count = 0;
+            ImGui::InputText("Edit", buf3, 64, ImGuiInputTextFlags_CallbackEdit, Funcs::MyCallback, (void*)&edit_count);
+            ImGui::SameLine(); HelpMarker("Here we toggle the casing of the first character on every edits + count edits.");
+            ImGui::SameLine(); ImGui::Text("(%d)", edit_count);
+
+            ImGui::TreePop();
+        }
+
+        IMGUI_DEMO_MARKER("Widgets/Text Input/Resize Callback");
+        if (ImGui::TreeNode("Resize Callback"))
+        {
+            // To wire InputText() with std::string or any other custom string type,
+            // you can use the ImGuiInputTextFlags_CallbackResize flag + create a custom ImGui::InputText() wrapper
+            // using your preferred type. See misc/cpp/imgui_stdlib.h for an implementation of this using std::string.
+            HelpMarker(
+                "Using ImGuiInputTextFlags_CallbackResize to wire your custom string type to InputText().\n\n"
+                "See misc/cpp/imgui_stdlib.h for an implementation of this for std::string.");
+            struct Funcs
+            {
+                static int MyResizeCallback(ImGuiInputTextCallbackData* data)
+                {
+                    if (data->EventFlag == ImGuiInputTextFlags_CallbackResize)
+                    {
+                        ImVector<char>* my_str = (ImVector<char>*)data->UserData;
+                        IM_ASSERT(my_str->begin() == data->Buf);
+                        my_str->resize(data->BufSize); // NB: On resizing calls, generally data->BufSize == data->BufTextLen + 1
+                        data->Buf = my_str->begin();
+                    }
+                    return 0;
+                }
+
+                // Note: Because ImGui:: is a namespace you would typically add your own function into the namespace.
+                // For example, you code may declare a function 'ImGui::InputText(const char* label, MyString* my_str)'
+                static bool MyInputTextMultiline(const char* label, ImVector<char>* my_str, const ImVec2& size = ImVec2(0, 0), ImGuiInputTextFlags flags = 0)
+                {
+                    IM_ASSERT((flags & ImGuiInputTextFlags_CallbackResize) == 0);
+                    return ImGui::InputTextMultiline(label, my_str->begin(), (size_t)my_str->size(), size, flags | ImGuiInputTextFlags_CallbackResize, Funcs::MyResizeCallback, (void*)my_str);
+                }
+            };
+
+            // For this demo we are using ImVector as a string container.
+            // Note that because we need to store a terminating zero character, our size/capacity are 1 more
+            // than usually reported by a typical string class.
+            static ImVector<char> my_str;
+            if (my_str.empty())
+                my_str.push_back(0);
+            Funcs::MyInputTextMultiline("##MyStr", &my_str, ImVec2(-FLT_MIN, ImGui::GetTextLineHeight() * 16));
+            ImGui::Text("Data: %p\nSize: %d\nCapacity: %d", (void*)my_str.begin(), my_str.size(), my_str.capacity());
+            ImGui::TreePop();
+        }
+
+        ImGui::TreePop();
+    }
+
+    // Tabs
+    IMGUI_DEMO_MARKER("Widgets/Tabs");
+    if (ImGui::TreeNode("Tabs"))
+    {
+        IMGUI_DEMO_MARKER("Widgets/Tabs/Basic");
+        if (ImGui::TreeNode("Basic"))
+        {
+            ImGuiTabBarFlags tab_bar_flags = ImGuiTabBarFlags_None;
+            if (ImGui::BeginTabBar("MyTabBar", tab_bar_flags))
+            {
+                if (ImGui::BeginTabItem("Avocado"))
+                {
+                    ImGui::Text("This is the Avocado tab!\nblah blah blah blah blah");
+                    ImGui::EndTabItem();
+                }
+                if (ImGui::BeginTabItem("Broccoli"))
+                {
+                    ImGui::Text("This is the Broccoli tab!\nblah blah blah blah blah");
+                    ImGui::EndTabItem();
+                }
+                if (ImGui::BeginTabItem("Cucumber"))
+                {
+                    ImGui::Text("This is the Cucumber tab!\nblah blah blah blah blah");
+                    ImGui::EndTabItem();
+                }
+                ImGui::EndTabBar();
+            }
+            ImGui::Separator();
+            ImGui::TreePop();
+        }
+
+        IMGUI_DEMO_MARKER("Widgets/Tabs/Advanced & Close Button");
+        if (ImGui::TreeNode("Advanced & Close Button"))
+        {
+            // Expose a couple of the available flags. In most cases you may just call BeginTabBar() with no flags (0).
+            static ImGuiTabBarFlags tab_bar_flags = ImGuiTabBarFlags_Reorderable;
+            ImGui::CheckboxFlags("ImGuiTabBarFlags_Reorderable", &tab_bar_flags, ImGuiTabBarFlags_Reorderable);
+            ImGui::CheckboxFlags("ImGuiTabBarFlags_AutoSelectNewTabs", &tab_bar_flags, ImGuiTabBarFlags_AutoSelectNewTabs);
+            ImGui::CheckboxFlags("ImGuiTabBarFlags_TabListPopupButton", &tab_bar_flags, ImGuiTabBarFlags_TabListPopupButton);
+            ImGui::CheckboxFlags("ImGuiTabBarFlags_NoCloseWithMiddleMouseButton", &tab_bar_flags, ImGuiTabBarFlags_NoCloseWithMiddleMouseButton);
+            if ((tab_bar_flags & ImGuiTabBarFlags_FittingPolicyMask_) == 0)
+                tab_bar_flags |= ImGuiTabBarFlags_FittingPolicyDefault_;
+            if (ImGui::CheckboxFlags("ImGuiTabBarFlags_FittingPolicyResizeDown", &tab_bar_flags, ImGuiTabBarFlags_FittingPolicyResizeDown))
+                tab_bar_flags &= ~(ImGuiTabBarFlags_FittingPolicyMask_ ^ ImGuiTabBarFlags_FittingPolicyResizeDown);
+            if (ImGui::CheckboxFlags("ImGuiTabBarFlags_FittingPolicyScroll", &tab_bar_flags, ImGuiTabBarFlags_FittingPolicyScroll))
+                tab_bar_flags &= ~(ImGuiTabBarFlags_FittingPolicyMask_ ^ ImGuiTabBarFlags_FittingPolicyScroll);
+
+            // Tab Bar
+            const char* names[4] = { "Artichoke", "Beetroot", "Celery", "Daikon" };
+            static bool opened[4] = { true, true, true, true }; // Persistent user state
+            for (int n = 0; n < IM_ARRAYSIZE(opened); n++)
+            {
+                if (n > 0) { ImGui::SameLine(); }
+                ImGui::Checkbox(names[n], &opened[n]);
+            }
+
+            // Passing a bool* to BeginTabItem() is similar to passing one to Begin():
+            // the underlying bool will be set to false when the tab is closed.
+            if (ImGui::BeginTabBar("MyTabBar", tab_bar_flags))
+            {
+                for (int n = 0; n < IM_ARRAYSIZE(opened); n++)
+                    if (opened[n] && ImGui::BeginTabItem(names[n], &opened[n], ImGuiTabItemFlags_None))
+                    {
+                        ImGui::Text("This is the %s tab!", names[n]);
+                        if (n & 1)
+                            ImGui::Text("I am an odd tab.");
+                        ImGui::EndTabItem();
+                    }
+                ImGui::EndTabBar();
+            }
+            ImGui::Separator();
+            ImGui::TreePop();
+        }
+
+        IMGUI_DEMO_MARKER("Widgets/Tabs/TabItemButton & Leading-Trailing flags");
+        if (ImGui::TreeNode("TabItemButton & Leading/Trailing flags"))
+        {
+            static ImVector<int> active_tabs;
+            static int next_tab_id = 0;
+            if (next_tab_id == 0) // Initialize with some default tabs
+                for (int i = 0; i < 3; i++)
+                    active_tabs.push_back(next_tab_id++);
+
+            // TabItemButton() and Leading/Trailing flags are distinct features which we will demo together.
+            // (It is possible to submit regular tabs with Leading/Trailing flags, or TabItemButton tabs without Leading/Trailing flags...
+            // but they tend to make more sense together)
+            static bool show_leading_button = true;
+            static bool show_trailing_button = true;
+            ImGui::Checkbox("Show Leading TabItemButton()", &show_leading_button);
+            ImGui::Checkbox("Show Trailing TabItemButton()", &show_trailing_button);
+
+            // Expose some other flags which are useful to showcase how they interact with Leading/Trailing tabs
+            static ImGuiTabBarFlags tab_bar_flags = ImGuiTabBarFlags_AutoSelectNewTabs | ImGuiTabBarFlags_Reorderable | ImGuiTabBarFlags_FittingPolicyResizeDown;
+            ImGui::CheckboxFlags("ImGuiTabBarFlags_TabListPopupButton", &tab_bar_flags, ImGuiTabBarFlags_TabListPopupButton);
+            if (ImGui::CheckboxFlags("ImGuiTabBarFlags_FittingPolicyResizeDown", &tab_bar_flags, ImGuiTabBarFlags_FittingPolicyResizeDown))
+                tab_bar_flags &= ~(ImGuiTabBarFlags_FittingPolicyMask_ ^ ImGuiTabBarFlags_FittingPolicyResizeDown);
+            if (ImGui::CheckboxFlags("ImGuiTabBarFlags_FittingPolicyScroll", &tab_bar_flags, ImGuiTabBarFlags_FittingPolicyScroll))
+                tab_bar_flags &= ~(ImGuiTabBarFlags_FittingPolicyMask_ ^ ImGuiTabBarFlags_FittingPolicyScroll);
+
+            if (ImGui::BeginTabBar("MyTabBar", tab_bar_flags))
+            {
+                // Demo a Leading TabItemButton(): click the "?" button to open a menu
+                if (show_leading_button)
+                    if (ImGui::TabItemButton("?", ImGuiTabItemFlags_Leading | ImGuiTabItemFlags_NoTooltip))
+                        ImGui::OpenPopup("MyHelpMenu");
+                if (ImGui::BeginPopup("MyHelpMenu"))
+                {
+                    ImGui::Selectable("Hello!");
+                    ImGui::EndPopup();
+                }
+
+                // Demo Trailing Tabs: click the "+" button to add a new tab (in your app you may want to use a font icon instead of the "+")
+                // Note that we submit it before the regular tabs, but because of the ImGuiTabItemFlags_Trailing flag it will always appear at the end.
+                if (show_trailing_button)
+                    if (ImGui::TabItemButton("+", ImGuiTabItemFlags_Trailing | ImGuiTabItemFlags_NoTooltip))
+                        active_tabs.push_back(next_tab_id++); // Add new tab
+
+                // Submit our regular tabs
+                for (int n = 0; n < active_tabs.Size; )
+                {
+                    bool open = true;
+                    char name[16];
+                    snprintf(name, IM_ARRAYSIZE(name), "%04d", active_tabs[n]);
+                    if (ImGui::BeginTabItem(name, &open, ImGuiTabItemFlags_None))
+                    {
+                        ImGui::Text("This is the %s tab!", name);
+                        ImGui::EndTabItem();
+                    }
+
+                    if (!open)
+                        active_tabs.erase(active_tabs.Data + n);
+                    else
+                        n++;
+                }
+
+                ImGui::EndTabBar();
+            }
+            ImGui::Separator();
+            ImGui::TreePop();
+        }
+        ImGui::TreePop();
+    }
+
+    // Plot/Graph widgets are not very good.
+    // Consider using a third-party library such as ImPlot: https://github.com/epezent/implot
+    // (see others https://github.com/ocornut/imgui/wiki/Useful-Extensions)
+    IMGUI_DEMO_MARKER("Widgets/Plotting");
+    if (ImGui::TreeNode("Plotting"))
+    {
+        static bool animate = true;
+        ImGui::Checkbox("Animate", &animate);
+
+        // Plot as lines and plot as histogram
+        IMGUI_DEMO_MARKER("Widgets/Plotting/PlotLines, PlotHistogram");
+        static float arr[] = { 0.6f, 0.1f, 1.0f, 0.5f, 0.92f, 0.1f, 0.2f };
+        ImGui::PlotLines("Frame Times", arr, IM_ARRAYSIZE(arr));
+        ImGui::PlotHistogram("Histogram", arr, IM_ARRAYSIZE(arr), 0, NULL, 0.0f, 1.0f, ImVec2(0, 80.0f));
+
+        // Fill an array of contiguous float values to plot
+        // Tip: If your float aren't contiguous but part of a structure, you can pass a pointer to your first float
+        // and the sizeof() of your structure in the "stride" parameter.
+        static float values[90] = {};
+        static int values_offset = 0;
+        static double refresh_time = 0.0;
+        if (!animate || refresh_time == 0.0)
+            refresh_time = ImGui::GetTime();
+        while (refresh_time < ImGui::GetTime()) // Create data at fixed 60 Hz rate for the demo
+        {
+            static float phase = 0.0f;
+            values[values_offset] = cosf(phase);
+            values_offset = (values_offset + 1) % IM_ARRAYSIZE(values);
+            phase += 0.10f * values_offset;
+            refresh_time += 1.0f / 60.0f;
+        }
+
+        // Plots can display overlay texts
+        // (in this example, we will display an average value)
+        {
+            float average = 0.0f;
+            for (int n = 0; n < IM_ARRAYSIZE(values); n++)
+                average += values[n];
+            average /= (float)IM_ARRAYSIZE(values);
+            char overlay[32];
+            sprintf(overlay, "avg %f", average);
+            ImGui::PlotLines("Lines", values, IM_ARRAYSIZE(values), values_offset, overlay, -1.0f, 1.0f, ImVec2(0, 80.0f));
+        }
+
+        // Use functions to generate output
+        // FIXME: This is rather awkward because current plot API only pass in indices.
+        // We probably want an API passing floats and user provide sample rate/count.
+        struct Funcs
+        {
+            static float Sin(void*, int i) { return sinf(i * 0.1f); }
+            static float Saw(void*, int i) { return (i & 1) ? 1.0f : -1.0f; }
+        };
+        static int func_type = 0, display_count = 70;
+        ImGui::Separator();
+        ImGui::SetNextItemWidth(ImGui::GetFontSize() * 8);
+        ImGui::Combo("func", &func_type, "Sin\0Saw\0");
+        ImGui::SameLine();
+        ImGui::SliderInt("Sample count", &display_count, 1, 400);
+        float (*func)(void*, int) = (func_type == 0) ? Funcs::Sin : Funcs::Saw;
+        ImGui::PlotLines("Lines", func, NULL, display_count, 0, NULL, -1.0f, 1.0f, ImVec2(0, 80));
+        ImGui::PlotHistogram("Histogram", func, NULL, display_count, 0, NULL, -1.0f, 1.0f, ImVec2(0, 80));
+        ImGui::Separator();
+
+        // Animate a simple progress bar
+        IMGUI_DEMO_MARKER("Widgets/Plotting/ProgressBar");
+        static float progress = 0.0f, progress_dir = 1.0f;
+        if (animate)
+        {
+            progress += progress_dir * 0.4f * ImGui::GetIO().DeltaTime;
+            if (progress >= +1.1f) { progress = +1.1f; progress_dir *= -1.0f; }
+            if (progress <= -0.1f) { progress = -0.1f; progress_dir *= -1.0f; }
+        }
+
+        // Typically we would use ImVec2(-1.0f,0.0f) or ImVec2(-FLT_MIN,0.0f) to use all available width,
+        // or ImVec2(width,0.0f) for a specified width. ImVec2(0.0f,0.0f) uses ItemWidth.
+        ImGui::ProgressBar(progress, ImVec2(0.0f, 0.0f));
+        ImGui::SameLine(0.0f, ImGui::GetStyle().ItemInnerSpacing.x);
+        ImGui::Text("Progress Bar");
+
+        float progress_saturated = IM_CLAMP(progress, 0.0f, 1.0f);
+        char buf[32];
+        sprintf(buf, "%d/%d", (int)(progress_saturated * 1753), 1753);
+        ImGui::ProgressBar(progress, ImVec2(0.f, 0.f), buf);
+        ImGui::TreePop();
+    }
+
+    IMGUI_DEMO_MARKER("Widgets/Color");
+    if (ImGui::TreeNode("Color/Picker Widgets"))
+    {
+        static ImVec4 color = ImVec4(114.0f / 255.0f, 144.0f / 255.0f, 154.0f / 255.0f, 200.0f / 255.0f);
+
+        static bool alpha_preview = true;
+        static bool alpha_half_preview = false;
+        static bool drag_and_drop = true;
+        static bool options_menu = true;
+        static bool hdr = false;
+        ImGui::Checkbox("With Alpha Preview", &alpha_preview);
+        ImGui::Checkbox("With Half Alpha Preview", &alpha_half_preview);
+        ImGui::Checkbox("With Drag and Drop", &drag_and_drop);
+        ImGui::Checkbox("With Options Menu", &options_menu); ImGui::SameLine(); HelpMarker("Right-click on the individual color widget to show options.");
+        ImGui::Checkbox("With HDR", &hdr); ImGui::SameLine(); HelpMarker("Currently all this does is to lift the 0..1 limits on dragging widgets.");
+        ImGuiColorEditFlags misc_flags = (hdr ? ImGuiColorEditFlags_HDR : 0) | (drag_and_drop ? 0 : ImGuiColorEditFlags_NoDragDrop) | (alpha_half_preview ? ImGuiColorEditFlags_AlphaPreviewHalf : (alpha_preview ? ImGuiColorEditFlags_AlphaPreview : 0)) | (options_menu ? 0 : ImGuiColorEditFlags_NoOptions);
+
+        IMGUI_DEMO_MARKER("Widgets/Color/ColorEdit");
+        ImGui::Text("Color widget:");
+        ImGui::SameLine(); HelpMarker(
+            "Click on the color square to open a color picker.\n"
+            "CTRL+click on individual component to input value.\n");
+        ImGui::ColorEdit3("MyColor##1", (float*)&color, misc_flags);
+
+        IMGUI_DEMO_MARKER("Widgets/Color/ColorEdit (HSV, with Alpha)");
+        ImGui::Text("Color widget HSV with Alpha:");
+        ImGui::ColorEdit4("MyColor##2", (float*)&color, ImGuiColorEditFlags_DisplayHSV | misc_flags);
+
+        IMGUI_DEMO_MARKER("Widgets/Color/ColorEdit (float display)");
+        ImGui::Text("Color widget with Float Display:");
+        ImGui::ColorEdit4("MyColor##2f", (float*)&color, ImGuiColorEditFlags_Float | misc_flags);
+
+        IMGUI_DEMO_MARKER("Widgets/Color/ColorButton (with Picker)");
+        ImGui::Text("Color button with Picker:");
+        ImGui::SameLine(); HelpMarker(
+            "With the ImGuiColorEditFlags_NoInputs flag you can hide all the slider/text inputs.\n"
+            "With the ImGuiColorEditFlags_NoLabel flag you can pass a non-empty label which will only "
+            "be used for the tooltip and picker popup.");
+        ImGui::ColorEdit4("MyColor##3", (float*)&color, ImGuiColorEditFlags_NoInputs | ImGuiColorEditFlags_NoLabel | misc_flags);
+
+        IMGUI_DEMO_MARKER("Widgets/Color/ColorButton (with custom Picker popup)");
+        ImGui::Text("Color button with Custom Picker Popup:");
+
+        // Generate a default palette. The palette will persist and can be edited.
+        static bool saved_palette_init = true;
+        static ImVec4 saved_palette[32] = {};
+        if (saved_palette_init)
+        {
+            for (int n = 0; n < IM_ARRAYSIZE(saved_palette); n++)
+            {
+                ImGui::ColorConvertHSVtoRGB(n / 31.0f, 0.8f, 0.8f,
+                    saved_palette[n].x, saved_palette[n].y, saved_palette[n].z);
+                saved_palette[n].w = 1.0f; // Alpha
+            }
+            saved_palette_init = false;
+        }
+
+        static ImVec4 backup_color;
+        bool open_popup = ImGui::ColorButton("MyColor##3b", color, misc_flags);
+        ImGui::SameLine(0, ImGui::GetStyle().ItemInnerSpacing.x);
+        open_popup |= ImGui::Button("Palette");
+        if (open_popup)
+        {
+            ImGui::OpenPopup("mypicker");
+            backup_color = color;
+        }
+        if (ImGui::BeginPopup("mypicker"))
+        {
+            ImGui::Text("MY CUSTOM COLOR PICKER WITH AN AMAZING PALETTE!");
+            ImGui::Separator();
+            ImGui::ColorPicker4("##picker", (float*)&color, misc_flags | ImGuiColorEditFlags_NoSidePreview | ImGuiColorEditFlags_NoSmallPreview);
+            ImGui::SameLine();
+
+            ImGui::BeginGroup(); // Lock X position
+            ImGui::Text("Current");
+            ImGui::ColorButton("##current", color, ImGuiColorEditFlags_NoPicker | ImGuiColorEditFlags_AlphaPreviewHalf, ImVec2(60, 40));
+            ImGui::Text("Previous");
+            if (ImGui::ColorButton("##previous", backup_color, ImGuiColorEditFlags_NoPicker | ImGuiColorEditFlags_AlphaPreviewHalf, ImVec2(60, 40)))
+                color = backup_color;
+            ImGui::Separator();
+            ImGui::Text("Palette");
+            for (int n = 0; n < IM_ARRAYSIZE(saved_palette); n++)
+            {
+                ImGui::PushID(n);
+                if ((n % 8) != 0)
+                    ImGui::SameLine(0.0f, ImGui::GetStyle().ItemSpacing.y);
+
+                ImGuiColorEditFlags palette_button_flags = ImGuiColorEditFlags_NoAlpha | ImGuiColorEditFlags_NoPicker | ImGuiColorEditFlags_NoTooltip;
+                if (ImGui::ColorButton("##palette", saved_palette[n], palette_button_flags, ImVec2(20, 20)))
+                    color = ImVec4(saved_palette[n].x, saved_palette[n].y, saved_palette[n].z, color.w); // Preserve alpha!
+
+                // Allow user to drop colors into each palette entry. Note that ColorButton() is already a
+                // drag source by default, unless specifying the ImGuiColorEditFlags_NoDragDrop flag.
+                if (ImGui::BeginDragDropTarget())
+                {
+                    if (const ImGuiPayload* payload = ImGui::AcceptDragDropPayload(IMGUI_PAYLOAD_TYPE_COLOR_3F))
+                        memcpy((float*)&saved_palette[n], payload->Data, sizeof(float) * 3);
+                    if (const ImGuiPayload* payload = ImGui::AcceptDragDropPayload(IMGUI_PAYLOAD_TYPE_COLOR_4F))
+                        memcpy((float*)&saved_palette[n], payload->Data, sizeof(float) * 4);
+                    ImGui::EndDragDropTarget();
+                }
+
+                ImGui::PopID();
+            }
+            ImGui::EndGroup();
+            ImGui::EndPopup();
+        }
+
+        IMGUI_DEMO_MARKER("Widgets/Color/ColorButton (simple)");
+        ImGui::Text("Color button only:");
+        static bool no_border = false;
+        ImGui::Checkbox("ImGuiColorEditFlags_NoBorder", &no_border);
+        ImGui::ColorButton("MyColor##3c", *(ImVec4*)&color, misc_flags | (no_border ? ImGuiColorEditFlags_NoBorder : 0), ImVec2(80, 80));
+
+        IMGUI_DEMO_MARKER("Widgets/Color/ColorPicker");
+        ImGui::Text("Color picker:");
+        static bool alpha = true;
+        static bool alpha_bar = true;
+        static bool side_preview = true;
+        static bool ref_color = false;
+        static ImVec4 ref_color_v(1.0f, 0.0f, 1.0f, 0.5f);
+        static int display_mode = 0;
+        static int picker_mode = 0;
+        ImGui::Checkbox("With Alpha", &alpha);
+        ImGui::Checkbox("With Alpha Bar", &alpha_bar);
+        ImGui::Checkbox("With Side Preview", &side_preview);
+        if (side_preview)
+        {
+            ImGui::SameLine();
+            ImGui::Checkbox("With Ref Color", &ref_color);
+            if (ref_color)
+            {
+                ImGui::SameLine();
+                ImGui::ColorEdit4("##RefColor", &ref_color_v.x, ImGuiColorEditFlags_NoInputs | misc_flags);
+            }
+        }
+        ImGui::Combo("Display Mode", &display_mode, "Auto/Current\0None\0RGB Only\0HSV Only\0Hex Only\0");
+        ImGui::SameLine(); HelpMarker(
+            "ColorEdit defaults to displaying RGB inputs if you don't specify a display mode, "
+            "but the user can change it with a right-click on those inputs.\n\nColorPicker defaults to displaying RGB+HSV+Hex "
+            "if you don't specify a display mode.\n\nYou can change the defaults using SetColorEditOptions().");
+        ImGui::SameLine(); HelpMarker("When not specified explicitly (Auto/Current mode), user can right-click the picker to change mode.");
+        ImGuiColorEditFlags flags = misc_flags;
+        if (!alpha)            flags |= ImGuiColorEditFlags_NoAlpha;        // This is by default if you call ColorPicker3() instead of ColorPicker4()
+        if (alpha_bar)         flags |= ImGuiColorEditFlags_AlphaBar;
+        if (!side_preview)     flags |= ImGuiColorEditFlags_NoSidePreview;
+        if (picker_mode == 1)  flags |= ImGuiColorEditFlags_PickerHueBar;
+        if (picker_mode == 2)  flags |= ImGuiColorEditFlags_PickerHueWheel;
+        if (display_mode == 1) flags |= ImGuiColorEditFlags_NoInputs;       // Disable all RGB/HSV/Hex displays
+        if (display_mode == 2) flags |= ImGuiColorEditFlags_DisplayRGB;     // Override display mode
+        if (display_mode == 3) flags |= ImGuiColorEditFlags_DisplayHSV;
+        if (display_mode == 4) flags |= ImGuiColorEditFlags_DisplayHex;
+        ImGui::ColorPicker4("MyColor##4", (float*)&color, flags, ref_color ? &ref_color_v.x : NULL);
+
+        ImGui::Text("Set defaults in code:");
+        ImGui::SameLine(); HelpMarker(
+            "SetColorEditOptions() is designed to allow you to set boot-time default.\n"
+            "We don't have Push/Pop functions because you can force options on a per-widget basis if needed,"
+            "and the user can change non-forced ones with the options menu.\nWe don't have a getter to avoid"
+            "encouraging you to persistently save values that aren't forward-compatible.");
+        if (ImGui::Button("Default: Uint8 + HSV + Hue Bar"))
+            ImGui::SetColorEditOptions(ImGuiColorEditFlags_Uint8 | ImGuiColorEditFlags_DisplayHSV | ImGuiColorEditFlags_PickerHueBar);
+        if (ImGui::Button("Default: Float + HDR + Hue Wheel"))
+            ImGui::SetColorEditOptions(ImGuiColorEditFlags_Float | ImGuiColorEditFlags_HDR | ImGuiColorEditFlags_PickerHueWheel);
+
+        // Always both a small version of both types of pickers (to make it more visible in the demo to people who are skimming quickly through it)
+        ImGui::Text("Both types:");
+        float w = (ImGui::GetContentRegionAvail().x - ImGui::GetStyle().ItemSpacing.y) * 0.40f;
+        ImGui::SetNextItemWidth(w);
+        ImGui::ColorPicker3("##MyColor##5", (float*)&color, ImGuiColorEditFlags_PickerHueBar | ImGuiColorEditFlags_NoSidePreview | ImGuiColorEditFlags_NoInputs | ImGuiColorEditFlags_NoAlpha);
+        ImGui::SameLine();
+        ImGui::SetNextItemWidth(w);
+        ImGui::ColorPicker3("##MyColor##6", (float*)&color, ImGuiColorEditFlags_PickerHueWheel | ImGuiColorEditFlags_NoSidePreview | ImGuiColorEditFlags_NoInputs | ImGuiColorEditFlags_NoAlpha);
+
+        // HSV encoded support (to avoid RGB<>HSV round trips and singularities when S==0 or V==0)
+        static ImVec4 color_hsv(0.23f, 1.0f, 1.0f, 1.0f); // Stored as HSV!
+        ImGui::Spacing();
+        ImGui::Text("HSV encoded colors");
+        ImGui::SameLine(); HelpMarker(
+            "By default, colors are given to ColorEdit and ColorPicker in RGB, but ImGuiColorEditFlags_InputHSV"
+            "allows you to store colors as HSV and pass them to ColorEdit and ColorPicker as HSV. This comes with the"
+            "added benefit that you can manipulate hue values with the picker even when saturation or value are zero.");
+        ImGui::Text("Color widget with InputHSV:");
+        ImGui::ColorEdit4("HSV shown as RGB##1", (float*)&color_hsv, ImGuiColorEditFlags_DisplayRGB | ImGuiColorEditFlags_InputHSV | ImGuiColorEditFlags_Float);
+        ImGui::ColorEdit4("HSV shown as HSV##1", (float*)&color_hsv, ImGuiColorEditFlags_DisplayHSV | ImGuiColorEditFlags_InputHSV | ImGuiColorEditFlags_Float);
+        ImGui::DragFloat4("Raw HSV values", (float*)&color_hsv, 0.01f, 0.0f, 1.0f);
+
+        ImGui::TreePop();
+    }
+
+    IMGUI_DEMO_MARKER("Widgets/Drag and Slider Flags");
+    if (ImGui::TreeNode("Drag/Slider Flags"))
+    {
+        // Demonstrate using advanced flags for DragXXX and SliderXXX functions. Note that the flags are the same!
+        static ImGuiSliderFlags flags = ImGuiSliderFlags_None;
+        ImGui::CheckboxFlags("ImGuiSliderFlags_AlwaysClamp", &flags, ImGuiSliderFlags_AlwaysClamp);
+        ImGui::SameLine(); HelpMarker("Always clamp value to min/max bounds (if any) when input manually with CTRL+Click.");
+        ImGui::CheckboxFlags("ImGuiSliderFlags_Logarithmic", &flags, ImGuiSliderFlags_Logarithmic);
+        ImGui::SameLine(); HelpMarker("Enable logarithmic editing (more precision for small values).");
+        ImGui::CheckboxFlags("ImGuiSliderFlags_NoRoundToFormat", &flags, ImGuiSliderFlags_NoRoundToFormat);
+        ImGui::SameLine(); HelpMarker("Disable rounding underlying value to match precision of the format string (e.g. %.3f values are rounded to those 3 digits).");
+        ImGui::CheckboxFlags("ImGuiSliderFlags_NoInput", &flags, ImGuiSliderFlags_NoInput);
+        ImGui::SameLine(); HelpMarker("Disable CTRL+Click or Enter key allowing to input text directly into the widget.");
+
+        // Drags
+        static float drag_f = 0.5f;
+        static int drag_i = 50;
+        ImGui::Text("Underlying float value: %f", drag_f);
+        ImGui::DragFloat("DragFloat (0 -> 1)", &drag_f, 0.005f, 0.0f, 1.0f, "%.3f", flags);
+        ImGui::DragFloat("DragFloat (0 -> +inf)", &drag_f, 0.005f, 0.0f, FLT_MAX, "%.3f", flags);
+        ImGui::DragFloat("DragFloat (-inf -> 1)", &drag_f, 0.005f, -FLT_MAX, 1.0f, "%.3f", flags);
+        ImGui::DragFloat("DragFloat (-inf -> +inf)", &drag_f, 0.005f, -FLT_MAX, +FLT_MAX, "%.3f", flags);
+        ImGui::DragInt("DragInt (0 -> 100)", &drag_i, 0.5f, 0, 100, "%d", flags);
+
+        // Sliders
+        static float slider_f = 0.5f;
+        static int slider_i = 50;
+        ImGui::Text("Underlying float value: %f", slider_f);
+        ImGui::SliderFloat("SliderFloat (0 -> 1)", &slider_f, 0.0f, 1.0f, "%.3f", flags);
+        ImGui::SliderInt("SliderInt (0 -> 100)", &slider_i, 0, 100, "%d", flags);
+
+        ImGui::TreePop();
+    }
+
+    IMGUI_DEMO_MARKER("Widgets/Range Widgets");
+    if (ImGui::TreeNode("Range Widgets"))
+    {
+        static float begin = 10, end = 90;
+        static int begin_i = 100, end_i = 1000;
+        ImGui::DragFloatRange2("range float", &begin, &end, 0.25f, 0.0f, 100.0f, "Min: %.1f %%", "Max: %.1f %%", ImGuiSliderFlags_AlwaysClamp);
+        ImGui::DragIntRange2("range int", &begin_i, &end_i, 5, 0, 1000, "Min: %d units", "Max: %d units");
+        ImGui::DragIntRange2("range int (no bounds)", &begin_i, &end_i, 5, 0, 0, "Min: %d units", "Max: %d units");
+        ImGui::TreePop();
+    }
+
+    IMGUI_DEMO_MARKER("Widgets/Data Types");
+    if (ImGui::TreeNode("Data Types"))
+    {
+        // DragScalar/InputScalar/SliderScalar functions allow various data types
+        // - signed/unsigned
+        // - 8/16/32/64-bits
+        // - integer/float/double
+        // To avoid polluting the public API with all possible combinations, we use the ImGuiDataType enum
+        // to pass the type, and passing all arguments by pointer.
+        // This is the reason the test code below creates local variables to hold "zero" "one" etc. for each types.
+        // In practice, if you frequently use a given type that is not covered by the normal API entry points,
+        // you can wrap it yourself inside a 1 line function which can take typed argument as value instead of void*,
+        // and then pass their address to the generic function. For example:
+        //   bool MySliderU64(const char *label, u64* value, u64 min = 0, u64 max = 0, const char* format = "%lld")
+        //   {
+        //      return SliderScalar(label, ImGuiDataType_U64, value, &min, &max, format);
+        //   }
+
+        // Setup limits (as helper variables so we can take their address, as explained above)
+        // Note: SliderScalar() functions have a maximum usable range of half the natural type maximum, hence the /2.
+        #ifndef LLONG_MIN
+        ImS64 LLONG_MIN = -9223372036854775807LL - 1;
+        ImS64 LLONG_MAX = 9223372036854775807LL;
+        ImU64 ULLONG_MAX = (2ULL * 9223372036854775807LL + 1);
+        #endif
+        const char    s8_zero  = 0,   s8_one  = 1,   s8_fifty  = 50, s8_min  = -128,        s8_max = 127;
+        const ImU8    u8_zero  = 0,   u8_one  = 1,   u8_fifty  = 50, u8_min  = 0,           u8_max = 255;
+        const short   s16_zero = 0,   s16_one = 1,   s16_fifty = 50, s16_min = -32768,      s16_max = 32767;
+        const ImU16   u16_zero = 0,   u16_one = 1,   u16_fifty = 50, u16_min = 0,           u16_max = 65535;
+        const ImS32   s32_zero = 0,   s32_one = 1,   s32_fifty = 50, s32_min = INT_MIN/2,   s32_max = INT_MAX/2,    s32_hi_a = INT_MAX/2 - 100,    s32_hi_b = INT_MAX/2;
+        const ImU32   u32_zero = 0,   u32_one = 1,   u32_fifty = 50, u32_min = 0,           u32_max = UINT_MAX/2,   u32_hi_a = UINT_MAX/2 - 100,   u32_hi_b = UINT_MAX/2;
+        const ImS64   s64_zero = 0,   s64_one = 1,   s64_fifty = 50, s64_min = LLONG_MIN/2, s64_max = LLONG_MAX/2,  s64_hi_a = LLONG_MAX/2 - 100,  s64_hi_b = LLONG_MAX/2;
+        const ImU64   u64_zero = 0,   u64_one = 1,   u64_fifty = 50, u64_min = 0,           u64_max = ULLONG_MAX/2, u64_hi_a = ULLONG_MAX/2 - 100, u64_hi_b = ULLONG_MAX/2;
+        const float   f32_zero = 0.f, f32_one = 1.f, f32_lo_a = -10000000000.0f, f32_hi_a = +10000000000.0f;
+        const double  f64_zero = 0.,  f64_one = 1.,  f64_lo_a = -1000000000000000.0, f64_hi_a = +1000000000000000.0;
+
+        // State
+        static char   s8_v  = 127;
+        static ImU8   u8_v  = 255;
+        static short  s16_v = 32767;
+        static ImU16  u16_v = 65535;
+        static ImS32  s32_v = -1;
+        static ImU32  u32_v = (ImU32)-1;
+        static ImS64  s64_v = -1;
+        static ImU64  u64_v = (ImU64)-1;
+        static float  f32_v = 0.123f;
+        static double f64_v = 90000.01234567890123456789;
+
+        const float drag_speed = 0.2f;
+        static bool drag_clamp = false;
+        IMGUI_DEMO_MARKER("Widgets/Data Types/Drags");
+        ImGui::Text("Drags:");
+        ImGui::Checkbox("Clamp integers to 0..50", &drag_clamp);
+        ImGui::SameLine(); HelpMarker(
+            "As with every widgets in dear imgui, we never modify values unless there is a user interaction.\n"
+            "You can override the clamping limits by using CTRL+Click to input a value.");
+        ImGui::DragScalar("drag s8",        ImGuiDataType_S8,     &s8_v,  drag_speed, drag_clamp ? &s8_zero  : NULL, drag_clamp ? &s8_fifty  : NULL);
+        ImGui::DragScalar("drag u8",        ImGuiDataType_U8,     &u8_v,  drag_speed, drag_clamp ? &u8_zero  : NULL, drag_clamp ? &u8_fifty  : NULL, "%u ms");
+        ImGui::DragScalar("drag s16",       ImGuiDataType_S16,    &s16_v, drag_speed, drag_clamp ? &s16_zero : NULL, drag_clamp ? &s16_fifty : NULL);
+        ImGui::DragScalar("drag u16",       ImGuiDataType_U16,    &u16_v, drag_speed, drag_clamp ? &u16_zero : NULL, drag_clamp ? &u16_fifty : NULL, "%u ms");
+        ImGui::DragScalar("drag s32",       ImGuiDataType_S32,    &s32_v, drag_speed, drag_clamp ? &s32_zero : NULL, drag_clamp ? &s32_fifty : NULL);
+        ImGui::DragScalar("drag s32 hex",   ImGuiDataType_S32,    &s32_v, drag_speed, drag_clamp ? &s32_zero : NULL, drag_clamp ? &s32_fifty : NULL, "0x%08X");
+        ImGui::DragScalar("drag u32",       ImGuiDataType_U32,    &u32_v, drag_speed, drag_clamp ? &u32_zero : NULL, drag_clamp ? &u32_fifty : NULL, "%u ms");
+        ImGui::DragScalar("drag s64",       ImGuiDataType_S64,    &s64_v, drag_speed, drag_clamp ? &s64_zero : NULL, drag_clamp ? &s64_fifty : NULL);
+        ImGui::DragScalar("drag u64",       ImGuiDataType_U64,    &u64_v, drag_speed, drag_clamp ? &u64_zero : NULL, drag_clamp ? &u64_fifty : NULL);
+        ImGui::DragScalar("drag float",     ImGuiDataType_Float,  &f32_v, 0.005f,  &f32_zero, &f32_one, "%f");
+        ImGui::DragScalar("drag float log", ImGuiDataType_Float,  &f32_v, 0.005f,  &f32_zero, &f32_one, "%f", ImGuiSliderFlags_Logarithmic);
+        ImGui::DragScalar("drag double",    ImGuiDataType_Double, &f64_v, 0.0005f, &f64_zero, NULL,     "%.10f grams");
+        ImGui::DragScalar("drag double log",ImGuiDataType_Double, &f64_v, 0.0005f, &f64_zero, &f64_one, "0 < %.10f < 1", ImGuiSliderFlags_Logarithmic);
+
+        IMGUI_DEMO_MARKER("Widgets/Data Types/Sliders");
+        ImGui::Text("Sliders");
+        ImGui::SliderScalar("slider s8 full",       ImGuiDataType_S8,     &s8_v,  &s8_min,   &s8_max,   "%d");
+        ImGui::SliderScalar("slider u8 full",       ImGuiDataType_U8,     &u8_v,  &u8_min,   &u8_max,   "%u");
+        ImGui::SliderScalar("slider s16 full",      ImGuiDataType_S16,    &s16_v, &s16_min,  &s16_max,  "%d");
+        ImGui::SliderScalar("slider u16 full",      ImGuiDataType_U16,    &u16_v, &u16_min,  &u16_max,  "%u");
+        ImGui::SliderScalar("slider s32 low",       ImGuiDataType_S32,    &s32_v, &s32_zero, &s32_fifty,"%d");
+        ImGui::SliderScalar("slider s32 high",      ImGuiDataType_S32,    &s32_v, &s32_hi_a, &s32_hi_b, "%d");
+        ImGui::SliderScalar("slider s32 full",      ImGuiDataType_S32,    &s32_v, &s32_min,  &s32_max,  "%d");
+        ImGui::SliderScalar("slider s32 hex",       ImGuiDataType_S32,    &s32_v, &s32_zero, &s32_fifty, "0x%04X");
+        ImGui::SliderScalar("slider u32 low",       ImGuiDataType_U32,    &u32_v, &u32_zero, &u32_fifty,"%u");
+        ImGui::SliderScalar("slider u32 high",      ImGuiDataType_U32,    &u32_v, &u32_hi_a, &u32_hi_b, "%u");
+        ImGui::SliderScalar("slider u32 full",      ImGuiDataType_U32,    &u32_v, &u32_min,  &u32_max,  "%u");
+        ImGui::SliderScalar("slider s64 low",       ImGuiDataType_S64,    &s64_v, &s64_zero, &s64_fifty,"%" IM_PRId64);
+        ImGui::SliderScalar("slider s64 high",      ImGuiDataType_S64,    &s64_v, &s64_hi_a, &s64_hi_b, "%" IM_PRId64);
+        ImGui::SliderScalar("slider s64 full",      ImGuiDataType_S64,    &s64_v, &s64_min,  &s64_max,  "%" IM_PRId64);
+        ImGui::SliderScalar("slider u64 low",       ImGuiDataType_U64,    &u64_v, &u64_zero, &u64_fifty,"%" IM_PRIu64 " ms");
+        ImGui::SliderScalar("slider u64 high",      ImGuiDataType_U64,    &u64_v, &u64_hi_a, &u64_hi_b, "%" IM_PRIu64 " ms");
+        ImGui::SliderScalar("slider u64 full",      ImGuiDataType_U64,    &u64_v, &u64_min,  &u64_max,  "%" IM_PRIu64 " ms");
+        ImGui::SliderScalar("slider float low",     ImGuiDataType_Float,  &f32_v, &f32_zero, &f32_one);
+        ImGui::SliderScalar("slider float low log", ImGuiDataType_Float,  &f32_v, &f32_zero, &f32_one,  "%.10f", ImGuiSliderFlags_Logarithmic);
+        ImGui::SliderScalar("slider float high",    ImGuiDataType_Float,  &f32_v, &f32_lo_a, &f32_hi_a, "%e");
+        ImGui::SliderScalar("slider double low",    ImGuiDataType_Double, &f64_v, &f64_zero, &f64_one,  "%.10f grams");
+        ImGui::SliderScalar("slider double low log",ImGuiDataType_Double, &f64_v, &f64_zero, &f64_one,  "%.10f", ImGuiSliderFlags_Logarithmic);
+        ImGui::SliderScalar("slider double high",   ImGuiDataType_Double, &f64_v, &f64_lo_a, &f64_hi_a, "%e grams");
+
+        ImGui::Text("Sliders (reverse)");
+        ImGui::SliderScalar("slider s8 reverse",    ImGuiDataType_S8,   &s8_v,  &s8_max,    &s8_min,   "%d");
+        ImGui::SliderScalar("slider u8 reverse",    ImGuiDataType_U8,   &u8_v,  &u8_max,    &u8_min,   "%u");
+        ImGui::SliderScalar("slider s32 reverse",   ImGuiDataType_S32,  &s32_v, &s32_fifty, &s32_zero, "%d");
+        ImGui::SliderScalar("slider u32 reverse",   ImGuiDataType_U32,  &u32_v, &u32_fifty, &u32_zero, "%u");
+        ImGui::SliderScalar("slider s64 reverse",   ImGuiDataType_S64,  &s64_v, &s64_fifty, &s64_zero, "%" IM_PRId64);
+        ImGui::SliderScalar("slider u64 reverse",   ImGuiDataType_U64,  &u64_v, &u64_fifty, &u64_zero, "%" IM_PRIu64 " ms");
+
+        IMGUI_DEMO_MARKER("Widgets/Data Types/Inputs");
+        static bool inputs_step = true;
+        ImGui::Text("Inputs");
+        ImGui::Checkbox("Show step buttons", &inputs_step);
+        ImGui::InputScalar("input s8",      ImGuiDataType_S8,     &s8_v,  inputs_step ? &s8_one  : NULL, NULL, "%d");
+        ImGui::InputScalar("input u8",      ImGuiDataType_U8,     &u8_v,  inputs_step ? &u8_one  : NULL, NULL, "%u");
+        ImGui::InputScalar("input s16",     ImGuiDataType_S16,    &s16_v, inputs_step ? &s16_one : NULL, NULL, "%d");
+        ImGui::InputScalar("input u16",     ImGuiDataType_U16,    &u16_v, inputs_step ? &u16_one : NULL, NULL, "%u");
+        ImGui::InputScalar("input s32",     ImGuiDataType_S32,    &s32_v, inputs_step ? &s32_one : NULL, NULL, "%d");
+        ImGui::InputScalar("input s32 hex", ImGuiDataType_S32,    &s32_v, inputs_step ? &s32_one : NULL, NULL, "%04X");
+        ImGui::InputScalar("input u32",     ImGuiDataType_U32,    &u32_v, inputs_step ? &u32_one : NULL, NULL, "%u");
+        ImGui::InputScalar("input u32 hex", ImGuiDataType_U32,    &u32_v, inputs_step ? &u32_one : NULL, NULL, "%08X");
+        ImGui::InputScalar("input s64",     ImGuiDataType_S64,    &s64_v, inputs_step ? &s64_one : NULL);
+        ImGui::InputScalar("input u64",     ImGuiDataType_U64,    &u64_v, inputs_step ? &u64_one : NULL);
+        ImGui::InputScalar("input float",   ImGuiDataType_Float,  &f32_v, inputs_step ? &f32_one : NULL);
+        ImGui::InputScalar("input double",  ImGuiDataType_Double, &f64_v, inputs_step ? &f64_one : NULL);
+
+        ImGui::TreePop();
+    }
+
+    IMGUI_DEMO_MARKER("Widgets/Multi-component Widgets");
+    if (ImGui::TreeNode("Multi-component Widgets"))
+    {
+        static float vec4f[4] = { 0.10f, 0.20f, 0.30f, 0.44f };
+        static int vec4i[4] = { 1, 5, 100, 255 };
+
+        ImGui::InputFloat2("input float2", vec4f);
+        ImGui::DragFloat2("drag float2", vec4f, 0.01f, 0.0f, 1.0f);
+        ImGui::SliderFloat2("slider float2", vec4f, 0.0f, 1.0f);
+        ImGui::InputInt2("input int2", vec4i);
+        ImGui::DragInt2("drag int2", vec4i, 1, 0, 255);
+        ImGui::SliderInt2("slider int2", vec4i, 0, 255);
+        ImGui::Spacing();
+
+        ImGui::InputFloat3("input float3", vec4f);
+        ImGui::DragFloat3("drag float3", vec4f, 0.01f, 0.0f, 1.0f);
+        ImGui::SliderFloat3("slider float3", vec4f, 0.0f, 1.0f);
+        ImGui::InputInt3("input int3", vec4i);
+        ImGui::DragInt3("drag int3", vec4i, 1, 0, 255);
+        ImGui::SliderInt3("slider int3", vec4i, 0, 255);
+        ImGui::Spacing();
+
+        ImGui::InputFloat4("input float4", vec4f);
+        ImGui::DragFloat4("drag float4", vec4f, 0.01f, 0.0f, 1.0f);
+        ImGui::SliderFloat4("slider float4", vec4f, 0.0f, 1.0f);
+        ImGui::InputInt4("input int4", vec4i);
+        ImGui::DragInt4("drag int4", vec4i, 1, 0, 255);
+        ImGui::SliderInt4("slider int4", vec4i, 0, 255);
+
+        ImGui::TreePop();
+    }
+
+    IMGUI_DEMO_MARKER("Widgets/Vertical Sliders");
+    if (ImGui::TreeNode("Vertical Sliders"))
+    {
+        const float spacing = 4;
+        ImGui::PushStyleVar(ImGuiStyleVar_ItemSpacing, ImVec2(spacing, spacing));
+
+        static int int_value = 0;
+        ImGui::VSliderInt("##int", ImVec2(18, 160), &int_value, 0, 5);
+        ImGui::SameLine();
+
+        static float values[7] = { 0.0f, 0.60f, 0.35f, 0.9f, 0.70f, 0.20f, 0.0f };
+        ImGui::PushID("set1");
+        for (int i = 0; i < 7; i++)
+        {
+            if (i > 0) ImGui::SameLine();
+            ImGui::PushID(i);
+            ImGui::PushStyleColor(ImGuiCol_FrameBg, (ImVec4)ImColor::HSV(i / 7.0f, 0.5f, 0.5f));
+            ImGui::PushStyleColor(ImGuiCol_FrameBgHovered, (ImVec4)ImColor::HSV(i / 7.0f, 0.6f, 0.5f));
+            ImGui::PushStyleColor(ImGuiCol_FrameBgActive, (ImVec4)ImColor::HSV(i / 7.0f, 0.7f, 0.5f));
+            ImGui::PushStyleColor(ImGuiCol_SliderGrab, (ImVec4)ImColor::HSV(i / 7.0f, 0.9f, 0.9f));
+            ImGui::VSliderFloat("##v", ImVec2(18, 160), &values[i], 0.0f, 1.0f, "");
+            if (ImGui::IsItemActive() || ImGui::IsItemHovered())
+                ImGui::SetTooltip("%.3f", values[i]);
+            ImGui::PopStyleColor(4);
+            ImGui::PopID();
+        }
+        ImGui::PopID();
+
+        ImGui::SameLine();
+        ImGui::PushID("set2");
+        static float values2[4] = { 0.20f, 0.80f, 0.40f, 0.25f };
+        const int rows = 3;
+        const ImVec2 small_slider_size(18, (float)(int)((160.0f - (rows - 1) * spacing) / rows));
+        for (int nx = 0; nx < 4; nx++)
+        {
+            if (nx > 0) ImGui::SameLine();
+            ImGui::BeginGroup();
+            for (int ny = 0; ny < rows; ny++)
+            {
+                ImGui::PushID(nx * rows + ny);
+                ImGui::VSliderFloat("##v", small_slider_size, &values2[nx], 0.0f, 1.0f, "");
+                if (ImGui::IsItemActive() || ImGui::IsItemHovered())
+                    ImGui::SetTooltip("%.3f", values2[nx]);
+                ImGui::PopID();
+            }
+            ImGui::EndGroup();
+        }
+        ImGui::PopID();
+
+        ImGui::SameLine();
+        ImGui::PushID("set3");
+        for (int i = 0; i < 4; i++)
+        {
+            if (i > 0) ImGui::SameLine();
+            ImGui::PushID(i);
+            ImGui::PushStyleVar(ImGuiStyleVar_GrabMinSize, 40);
+            ImGui::VSliderFloat("##v", ImVec2(40, 160), &values[i], 0.0f, 1.0f, "%.2f\nsec");
+            ImGui::PopStyleVar();
+            ImGui::PopID();
+        }
+        ImGui::PopID();
+        ImGui::PopStyleVar();
+        ImGui::TreePop();
+    }
+
+    IMGUI_DEMO_MARKER("Widgets/Drag and drop");
+    if (ImGui::TreeNode("Drag and Drop"))
+    {
+        IMGUI_DEMO_MARKER("Widgets/Drag and drop/Standard widgets");
+        if (ImGui::TreeNode("Drag and drop in standard widgets"))
+        {
+            // ColorEdit widgets automatically act as drag source and drag target.
+            // They are using standardized payload strings IMGUI_PAYLOAD_TYPE_COLOR_3F and IMGUI_PAYLOAD_TYPE_COLOR_4F
+            // to allow your own widgets to use colors in their drag and drop interaction.
+            // Also see 'Demo->Widgets->Color/Picker Widgets->Palette' demo.
+            HelpMarker("You can drag from the color squares.");
+            static float col1[3] = { 1.0f, 0.0f, 0.2f };
+            static float col2[4] = { 0.4f, 0.7f, 0.0f, 0.5f };
+            ImGui::ColorEdit3("color 1", col1);
+            ImGui::ColorEdit4("color 2", col2);
+            ImGui::TreePop();
+        }
+
+        IMGUI_DEMO_MARKER("Widgets/Drag and drop/Copy-swap items");
+        if (ImGui::TreeNode("Drag and drop to copy/swap items"))
+        {
+            enum Mode
+            {
+                Mode_Copy,
+                Mode_Move,
+                Mode_Swap
+            };
+            static int mode = 0;
+            if (ImGui::RadioButton("Copy", mode == Mode_Copy)) { mode = Mode_Copy; } ImGui::SameLine();
+            if (ImGui::RadioButton("Move", mode == Mode_Move)) { mode = Mode_Move; } ImGui::SameLine();
+            if (ImGui::RadioButton("Swap", mode == Mode_Swap)) { mode = Mode_Swap; }
+            static const char* names[9] =
+            {
+                "Bobby", "Beatrice", "Betty",
+                "Brianna", "Barry", "Bernard",
+                "Bibi", "Blaine", "Bryn"
+            };
+            for (int n = 0; n < IM_ARRAYSIZE(names); n++)
+            {
+                ImGui::PushID(n);
+                if ((n % 3) != 0)
+                    ImGui::SameLine();
+                ImGui::Button(names[n], ImVec2(60, 60));
+
+                // Our buttons are both drag sources and drag targets here!
+                if (ImGui::BeginDragDropSource(ImGuiDragDropFlags_None))
+                {
+                    // Set payload to carry the index of our item (could be anything)
+                    ImGui::SetDragDropPayload("DND_DEMO_CELL", &n, sizeof(int));
+
+                    // Display preview (could be anything, e.g. when dragging an image we could decide to display
+                    // the filename and a small preview of the image, etc.)
+                    if (mode == Mode_Copy) { ImGui::Text("Copy %s", names[n]); }
+                    if (mode == Mode_Move) { ImGui::Text("Move %s", names[n]); }
+                    if (mode == Mode_Swap) { ImGui::Text("Swap %s", names[n]); }
+                    ImGui::EndDragDropSource();
+                }
+                if (ImGui::BeginDragDropTarget())
+                {
+                    if (const ImGuiPayload* payload = ImGui::AcceptDragDropPayload("DND_DEMO_CELL"))
+                    {
+                        IM_ASSERT(payload->DataSize == sizeof(int));
+                        int payload_n = *(const int*)payload->Data;
+                        if (mode == Mode_Copy)
+                        {
+                            names[n] = names[payload_n];
+                        }
+                        if (mode == Mode_Move)
+                        {
+                            names[n] = names[payload_n];
+                            names[payload_n] = "";
+                        }
+                        if (mode == Mode_Swap)
+                        {
+                            const char* tmp = names[n];
+                            names[n] = names[payload_n];
+                            names[payload_n] = tmp;
+                        }
+                    }
+                    ImGui::EndDragDropTarget();
+                }
+                ImGui::PopID();
+            }
+            ImGui::TreePop();
+        }
+
+        IMGUI_DEMO_MARKER("Widgets/Drag and Drop/Drag to reorder items (simple)");
+        if (ImGui::TreeNode("Drag to reorder items (simple)"))
+        {
+            // Simple reordering
+            HelpMarker(
+                "We don't use the drag and drop api at all here! "
+                "Instead we query when the item is held but not hovered, and order items accordingly.");
+            static const char* item_names[] = { "Item One", "Item Two", "Item Three", "Item Four", "Item Five" };
+            for (int n = 0; n < IM_ARRAYSIZE(item_names); n++)
+            {
+                const char* item = item_names[n];
+                ImGui::Selectable(item);
+
+                if (ImGui::IsItemActive() && !ImGui::IsItemHovered())
+                {
+                    int n_next = n + (ImGui::GetMouseDragDelta(0).y < 0.f ? -1 : 1);
+                    if (n_next >= 0 && n_next < IM_ARRAYSIZE(item_names))
+                    {
+                        item_names[n] = item_names[n_next];
+                        item_names[n_next] = item;
+                        ImGui::ResetMouseDragDelta();
+                    }
+                }
+            }
+            ImGui::TreePop();
+        }
+
+        ImGui::TreePop();
+    }
+
+    IMGUI_DEMO_MARKER("Widgets/Querying Item Status (Edited,Active,Hovered etc.)");
+    if (ImGui::TreeNode("Querying Item Status (Edited/Active/Hovered etc.)"))
+    {
+        // Select an item type
+        const char* item_names[] =
+        {
+            "Text", "Button", "Button (w/ repeat)", "Checkbox", "SliderFloat", "InputText", "InputTextMultiline", "InputFloat",
+            "InputFloat3", "ColorEdit4", "Selectable", "MenuItem", "TreeNode", "TreeNode (w/ double-click)", "Combo", "ListBox"
+        };
+        static int item_type = 4;
+        static bool item_disabled = false;
+        ImGui::Combo("Item Type", &item_type, item_names, IM_ARRAYSIZE(item_names), IM_ARRAYSIZE(item_names));
+        ImGui::SameLine();
+        HelpMarker("Testing how various types of items are interacting with the IsItemXXX functions. Note that the bool return value of most ImGui function is generally equivalent to calling ImGui::IsItemHovered().");
+        ImGui::Checkbox("Item Disabled",  &item_disabled);
+
+        // Submit selected item item so we can query their status in the code following it.
+        bool ret = false;
+        static bool b = false;
+        static float col4f[4] = { 1.0f, 0.5, 0.0f, 1.0f };
+        static char str[16] = {};
+        if (item_disabled)
+            ImGui::BeginDisabled(true);
+        if (item_type == 0) { ImGui::Text("ITEM: Text"); }                                              // Testing text items with no identifier/interaction
+        if (item_type == 1) { ret = ImGui::Button("ITEM: Button"); }                                    // Testing button
+        if (item_type == 2) { ImGui::PushButtonRepeat(true); ret = ImGui::Button("ITEM: Button"); ImGui::PopButtonRepeat(); } // Testing button (with repeater)
+        if (item_type == 3) { ret = ImGui::Checkbox("ITEM: Checkbox", &b); }                            // Testing checkbox
+        if (item_type == 4) { ret = ImGui::SliderFloat("ITEM: SliderFloat", &col4f[0], 0.0f, 1.0f); }   // Testing basic item
+        if (item_type == 5) { ret = ImGui::InputText("ITEM: InputText", &str[0], IM_ARRAYSIZE(str)); }  // Testing input text (which handles tabbing)
+        if (item_type == 6) { ret = ImGui::InputTextMultiline("ITEM: InputTextMultiline", &str[0], IM_ARRAYSIZE(str)); } // Testing input text (which uses a child window)
+        if (item_type == 7) { ret = ImGui::InputFloat("ITEM: InputFloat", col4f, 1.0f); }               // Testing +/- buttons on scalar input
+        if (item_type == 8) { ret = ImGui::InputFloat3("ITEM: InputFloat3", col4f); }                   // Testing multi-component items (IsItemXXX flags are reported merged)
+        if (item_type == 9) { ret = ImGui::ColorEdit4("ITEM: ColorEdit4", col4f); }                     // Testing multi-component items (IsItemXXX flags are reported merged)
+        if (item_type == 10){ ret = ImGui::Selectable("ITEM: Selectable"); }                            // Testing selectable item
+        if (item_type == 11){ ret = ImGui::MenuItem("ITEM: MenuItem"); }                                // Testing menu item (they use ImGuiButtonFlags_PressedOnRelease button policy)
+        if (item_type == 12){ ret = ImGui::TreeNode("ITEM: TreeNode"); if (ret) ImGui::TreePop(); }     // Testing tree node
+        if (item_type == 13){ ret = ImGui::TreeNodeEx("ITEM: TreeNode w/ ImGuiTreeNodeFlags_OpenOnDoubleClick", ImGuiTreeNodeFlags_OpenOnDoubleClick | ImGuiTreeNodeFlags_NoTreePushOnOpen); } // Testing tree node with ImGuiButtonFlags_PressedOnDoubleClick button policy.
+        if (item_type == 14){ const char* items[] = { "Apple", "Banana", "Cherry", "Kiwi" }; static int current = 1; ret = ImGui::Combo("ITEM: Combo", &current, items, IM_ARRAYSIZE(items)); }
+        if (item_type == 15){ const char* items[] = { "Apple", "Banana", "Cherry", "Kiwi" }; static int current = 1; ret = ImGui::ListBox("ITEM: ListBox", &current, items, IM_ARRAYSIZE(items), IM_ARRAYSIZE(items)); }
+
+        // Display the values of IsItemHovered() and other common item state functions.
+        // Note that the ImGuiHoveredFlags_XXX flags can be combined.
+        // Because BulletText is an item itself and that would affect the output of IsItemXXX functions,
+        // we query every state in a single call to avoid storing them and to simplify the code.
+        ImGui::BulletText(
+            "Return value = %d\n"
+            "IsItemFocused() = %d\n"
+            "IsItemHovered() = %d\n"
+            "IsItemHovered(_AllowWhenBlockedByPopup) = %d\n"
+            "IsItemHovered(_AllowWhenBlockedByActiveItem) = %d\n"
+            "IsItemHovered(_AllowWhenOverlapped) = %d\n"
+            "IsItemHovered(_AllowWhenDisabled) = %d\n"
+            "IsItemHovered(_RectOnly) = %d\n"
+            "IsItemActive() = %d\n"
+            "IsItemEdited() = %d\n"
+            "IsItemActivated() = %d\n"
+            "IsItemDeactivated() = %d\n"
+            "IsItemDeactivatedAfterEdit() = %d\n"
+            "IsItemVisible() = %d\n"
+            "IsItemClicked() = %d\n"
+            "IsItemToggledOpen() = %d\n"
+            "GetItemRectMin() = (%.1f, %.1f)\n"
+            "GetItemRectMax() = (%.1f, %.1f)\n"
+            "GetItemRectSize() = (%.1f, %.1f)",
+            ret,
+            ImGui::IsItemFocused(),
+            ImGui::IsItemHovered(),
+            ImGui::IsItemHovered(ImGuiHoveredFlags_AllowWhenBlockedByPopup),
+            ImGui::IsItemHovered(ImGuiHoveredFlags_AllowWhenBlockedByActiveItem),
+            ImGui::IsItemHovered(ImGuiHoveredFlags_AllowWhenOverlapped),
+            ImGui::IsItemHovered(ImGuiHoveredFlags_AllowWhenDisabled),
+            ImGui::IsItemHovered(ImGuiHoveredFlags_RectOnly),
+            ImGui::IsItemActive(),
+            ImGui::IsItemEdited(),
+            ImGui::IsItemActivated(),
+            ImGui::IsItemDeactivated(),
+            ImGui::IsItemDeactivatedAfterEdit(),
+            ImGui::IsItemVisible(),
+            ImGui::IsItemClicked(),
+            ImGui::IsItemToggledOpen(),
+            ImGui::GetItemRectMin().x, ImGui::GetItemRectMin().y,
+            ImGui::GetItemRectMax().x, ImGui::GetItemRectMax().y,
+            ImGui::GetItemRectSize().x, ImGui::GetItemRectSize().y
+        );
+
+        if (item_disabled)
+            ImGui::EndDisabled();
+
+        char buf[1] = "";
+        ImGui::InputText("unused", buf, IM_ARRAYSIZE(buf), ImGuiInputTextFlags_ReadOnly);
+        ImGui::SameLine();
+        HelpMarker("This widget is only here to be able to tab-out of the widgets above and see e.g. Deactivated() status.");
+
+        ImGui::TreePop();
+    }
+
+    IMGUI_DEMO_MARKER("Widgets/Querying Window Status (Focused,Hovered etc.)");
+    if (ImGui::TreeNode("Querying Window Status (Focused/Hovered etc.)"))
+    {
+        static bool embed_all_inside_a_child_window = false;
+        ImGui::Checkbox("Embed everything inside a child window for testing _RootWindow flag.", &embed_all_inside_a_child_window);
+        if (embed_all_inside_a_child_window)
+            ImGui::BeginChild("outer_child", ImVec2(0, ImGui::GetFontSize() * 20.0f), true);
+
+        // Testing IsWindowFocused() function with its various flags.
+        ImGui::BulletText(
+            "IsWindowFocused() = %d\n"
+            "IsWindowFocused(_ChildWindows) = %d\n"
+            "IsWindowFocused(_ChildWindows|_NoPopupHierarchy) = %d\n"
+            "IsWindowFocused(_ChildWindows|_RootWindow) = %d\n"
+            "IsWindowFocused(_ChildWindows|_RootWindow|_NoPopupHierarchy) = %d\n"
+            "IsWindowFocused(_RootWindow) = %d\n"
+            "IsWindowFocused(_RootWindow|_NoPopupHierarchy) = %d\n"
+            "IsWindowFocused(_AnyWindow) = %d\n",
+            ImGui::IsWindowFocused(),
+            ImGui::IsWindowFocused(ImGuiFocusedFlags_ChildWindows),
+            ImGui::IsWindowFocused(ImGuiFocusedFlags_ChildWindows | ImGuiFocusedFlags_NoPopupHierarchy),
+            ImGui::IsWindowFocused(ImGuiFocusedFlags_ChildWindows | ImGuiFocusedFlags_RootWindow),
+            ImGui::IsWindowFocused(ImGuiFocusedFlags_ChildWindows | ImGuiFocusedFlags_RootWindow | ImGuiFocusedFlags_NoPopupHierarchy),
+            ImGui::IsWindowFocused(ImGuiFocusedFlags_RootWindow),
+            ImGui::IsWindowFocused(ImGuiFocusedFlags_RootWindow | ImGuiFocusedFlags_NoPopupHierarchy),
+            ImGui::IsWindowFocused(ImGuiFocusedFlags_AnyWindow));
+
+        // Testing IsWindowHovered() function with its various flags.
+        ImGui::BulletText(
+            "IsWindowHovered() = %d\n"
+            "IsWindowHovered(_AllowWhenBlockedByPopup) = %d\n"
+            "IsWindowHovered(_AllowWhenBlockedByActiveItem) = %d\n"
+            "IsWindowHovered(_ChildWindows) = %d\n"
+            "IsWindowHovered(_ChildWindows|_NoPopupHierarchy) = %d\n"
+            "IsWindowHovered(_ChildWindows|_RootWindow) = %d\n"
+            "IsWindowHovered(_ChildWindows|_RootWindow|_NoPopupHierarchy) = %d\n"
+            "IsWindowHovered(_RootWindow) = %d\n"
+            "IsWindowHovered(_RootWindow|_NoPopupHierarchy) = %d\n"
+            "IsWindowHovered(_ChildWindows|_AllowWhenBlockedByPopup) = %d\n"
+            "IsWindowHovered(_AnyWindow) = %d\n",
+            ImGui::IsWindowHovered(),
+            ImGui::IsWindowHovered(ImGuiHoveredFlags_AllowWhenBlockedByPopup),
+            ImGui::IsWindowHovered(ImGuiHoveredFlags_AllowWhenBlockedByActiveItem),
+            ImGui::IsWindowHovered(ImGuiHoveredFlags_ChildWindows),
+            ImGui::IsWindowHovered(ImGuiHoveredFlags_ChildWindows | ImGuiHoveredFlags_NoPopupHierarchy),
+            ImGui::IsWindowHovered(ImGuiHoveredFlags_ChildWindows | ImGuiHoveredFlags_RootWindow),
+            ImGui::IsWindowHovered(ImGuiHoveredFlags_ChildWindows | ImGuiHoveredFlags_RootWindow | ImGuiHoveredFlags_NoPopupHierarchy),
+            ImGui::IsWindowHovered(ImGuiHoveredFlags_RootWindow),
+            ImGui::IsWindowHovered(ImGuiHoveredFlags_RootWindow | ImGuiHoveredFlags_NoPopupHierarchy),
+            ImGui::IsWindowHovered(ImGuiHoveredFlags_ChildWindows | ImGuiHoveredFlags_AllowWhenBlockedByPopup),
+            ImGui::IsWindowHovered(ImGuiHoveredFlags_AnyWindow));
+
+        ImGui::BeginChild("child", ImVec2(0, 50), true);
+        ImGui::Text("This is another child window for testing the _ChildWindows flag.");
+        ImGui::EndChild();
+        if (embed_all_inside_a_child_window)
+            ImGui::EndChild();
+
+        // Calling IsItemHovered() after begin returns the hovered status of the title bar.
+        // This is useful in particular if you want to create a context menu associated to the title bar of a window.
+        static bool test_window = false;
+        ImGui::Checkbox("Hovered/Active tests after Begin() for title bar testing", &test_window);
+        if (test_window)
+        {
+            ImGui::Begin("Title bar Hovered/Active tests", &test_window);
+            if (ImGui::BeginPopupContextItem()) // <-- This is using IsItemHovered()
+            {
+                if (ImGui::MenuItem("Close")) { test_window = false; }
+                ImGui::EndPopup();
+            }
+            ImGui::Text(
+                "IsItemHovered() after begin = %d (== is title bar hovered)\n"
+                "IsItemActive() after begin = %d (== is window being clicked/moved)\n",
+                ImGui::IsItemHovered(), ImGui::IsItemActive());
+            ImGui::End();
+        }
+
+        ImGui::TreePop();
+    }
+
+    // Demonstrate BeginDisabled/EndDisabled using a checkbox located at the bottom of the section (which is a bit odd:
+    // logically we'd have this checkbox at the top of the section, but we don't want this feature to steal that space)
+    if (disable_all)
+        ImGui::EndDisabled();
+
+    IMGUI_DEMO_MARKER("Widgets/Disable Block");
+    if (ImGui::TreeNode("Disable block"))
+    {
+        ImGui::Checkbox("Disable entire section above", &disable_all);
+        ImGui::SameLine(); HelpMarker("Demonstrate using BeginDisabled()/EndDisabled() across this section.");
+        ImGui::TreePop();
+    }
+}
+
+static void ShowDemoWindowLayout()
+{
+    IMGUI_DEMO_MARKER("Layout");
+    if (!ImGui::CollapsingHeader("Layout & Scrolling"))
+        return;
+
+    IMGUI_DEMO_MARKER("Layout/Child windows");
+    if (ImGui::TreeNode("Child windows"))
+    {
+        HelpMarker("Use child windows to begin into a self-contained independent scrolling/clipping regions within a host window.");
+        static bool disable_mouse_wheel = false;
+        static bool disable_menu = false;
+        ImGui::Checkbox("Disable Mouse Wheel", &disable_mouse_wheel);
+        ImGui::Checkbox("Disable Menu", &disable_menu);
+
+        // Child 1: no border, enable horizontal scrollbar
+        {
+            ImGuiWindowFlags window_flags = ImGuiWindowFlags_HorizontalScrollbar;
+            if (disable_mouse_wheel)
+                window_flags |= ImGuiWindowFlags_NoScrollWithMouse;
+            ImGui::BeginChild("ChildL", ImVec2(ImGui::GetContentRegionAvail().x * 0.5f, 260), false, window_flags);
+            for (int i = 0; i < 100; i++)
+                ImGui::Text("%04d: scrollable region", i);
+            ImGui::EndChild();
+        }
+
+        ImGui::SameLine();
+
+        // Child 2: rounded border
+        {
+            ImGuiWindowFlags window_flags = ImGuiWindowFlags_None;
+            if (disable_mouse_wheel)
+                window_flags |= ImGuiWindowFlags_NoScrollWithMouse;
+            if (!disable_menu)
+                window_flags |= ImGuiWindowFlags_MenuBar;
+            ImGui::PushStyleVar(ImGuiStyleVar_ChildRounding, 5.0f);
+            ImGui::BeginChild("ChildR", ImVec2(0, 260), true, window_flags);
+            if (!disable_menu && ImGui::BeginMenuBar())
+            {
+                if (ImGui::BeginMenu("Menu"))
+                {
+                    ShowExampleMenuFile();
+                    ImGui::EndMenu();
+                }
+                ImGui::EndMenuBar();
+            }
+            if (ImGui::BeginTable("split", 2, ImGuiTableFlags_Resizable | ImGuiTableFlags_NoSavedSettings))
+            {
+                for (int i = 0; i < 100; i++)
+                {
+                    char buf[32];
+                    sprintf(buf, "%03d", i);
+                    ImGui::TableNextColumn();
+                    ImGui::Button(buf, ImVec2(-FLT_MIN, 0.0f));
+                }
+                ImGui::EndTable();
+            }
+            ImGui::EndChild();
+            ImGui::PopStyleVar();
+        }
+
+        ImGui::Separator();
+
+        // Demonstrate a few extra things
+        // - Changing ImGuiCol_ChildBg (which is transparent black in default styles)
+        // - Using SetCursorPos() to position child window (the child window is an item from the POV of parent window)
+        //   You can also call SetNextWindowPos() to position the child window. The parent window will effectively
+        //   layout from this position.
+        // - Using ImGui::GetItemRectMin/Max() to query the "item" state (because the child window is an item from
+        //   the POV of the parent window). See 'Demo->Querying Status (Edited/Active/Hovered etc.)' for details.
+        {
+            static int offset_x = 0;
+            ImGui::SetNextItemWidth(ImGui::GetFontSize() * 8);
+            ImGui::DragInt("Offset X", &offset_x, 1.0f, -1000, 1000);
+
+            ImGui::SetCursorPosX(ImGui::GetCursorPosX() + (float)offset_x);
+            ImGui::PushStyleColor(ImGuiCol_ChildBg, IM_COL32(255, 0, 0, 100));
+            ImGui::BeginChild("Red", ImVec2(200, 100), true, ImGuiWindowFlags_None);
+            for (int n = 0; n < 50; n++)
+                ImGui::Text("Some test %d", n);
+            ImGui::EndChild();
+            bool child_is_hovered = ImGui::IsItemHovered();
+            ImVec2 child_rect_min = ImGui::GetItemRectMin();
+            ImVec2 child_rect_max = ImGui::GetItemRectMax();
+            ImGui::PopStyleColor();
+            ImGui::Text("Hovered: %d", child_is_hovered);
+            ImGui::Text("Rect of child window is: (%.0f,%.0f) (%.0f,%.0f)", child_rect_min.x, child_rect_min.y, child_rect_max.x, child_rect_max.y);
+        }
+
+        ImGui::TreePop();
+    }
+
+    IMGUI_DEMO_MARKER("Layout/Widgets Width");
+    if (ImGui::TreeNode("Widgets Width"))
+    {
+        static float f = 0.0f;
+        static bool show_indented_items = true;
+        ImGui::Checkbox("Show indented items", &show_indented_items);
+
+        // Use SetNextItemWidth() to set the width of a single upcoming item.
+        // Use PushItemWidth()/PopItemWidth() to set the width of a group of items.
+        // In real code use you'll probably want to choose width values that are proportional to your font size
+        // e.g. Using '20.0f * GetFontSize()' as width instead of '200.0f', etc.
+
+        ImGui::Text("SetNextItemWidth/PushItemWidth(100)");
+        ImGui::SameLine(); HelpMarker("Fixed width.");
+        ImGui::PushItemWidth(100);
+        ImGui::DragFloat("float##1b", &f);
+        if (show_indented_items)
+        {
+            ImGui::Indent();
+            ImGui::DragFloat("float (indented)##1b", &f);
+            ImGui::Unindent();
+        }
+        ImGui::PopItemWidth();
+
+        ImGui::Text("SetNextItemWidth/PushItemWidth(-100)");
+        ImGui::SameLine(); HelpMarker("Align to right edge minus 100");
+        ImGui::PushItemWidth(-100);
+        ImGui::DragFloat("float##2a", &f);
+        if (show_indented_items)
+        {
+            ImGui::Indent();
+            ImGui::DragFloat("float (indented)##2b", &f);
+            ImGui::Unindent();
+        }
+        ImGui::PopItemWidth();
+
+        ImGui::Text("SetNextItemWidth/PushItemWidth(GetContentRegionAvail().x * 0.5f)");
+        ImGui::SameLine(); HelpMarker("Half of available width.\n(~ right-cursor_pos)\n(works within a column set)");
+        ImGui::PushItemWidth(ImGui::GetContentRegionAvail().x * 0.5f);
+        ImGui::DragFloat("float##3a", &f);
+        if (show_indented_items)
+        {
+            ImGui::Indent();
+            ImGui::DragFloat("float (indented)##3b", &f);
+            ImGui::Unindent();
+        }
+        ImGui::PopItemWidth();
+
+        ImGui::Text("SetNextItemWidth/PushItemWidth(-GetContentRegionAvail().x * 0.5f)");
+        ImGui::SameLine(); HelpMarker("Align to right edge minus half");
+        ImGui::PushItemWidth(-ImGui::GetContentRegionAvail().x * 0.5f);
+        ImGui::DragFloat("float##4a", &f);
+        if (show_indented_items)
+        {
+            ImGui::Indent();
+            ImGui::DragFloat("float (indented)##4b", &f);
+            ImGui::Unindent();
+        }
+        ImGui::PopItemWidth();
+
+        // Demonstrate using PushItemWidth to surround three items.
+        // Calling SetNextItemWidth() before each of them would have the same effect.
+        ImGui::Text("SetNextItemWidth/PushItemWidth(-FLT_MIN)");
+        ImGui::SameLine(); HelpMarker("Align to right edge");
+        ImGui::PushItemWidth(-FLT_MIN);
+        ImGui::DragFloat("##float5a", &f);
+        if (show_indented_items)
+        {
+            ImGui::Indent();
+            ImGui::DragFloat("float (indented)##5b", &f);
+            ImGui::Unindent();
+        }
+        ImGui::PopItemWidth();
+
+        ImGui::TreePop();
+    }
+
+    IMGUI_DEMO_MARKER("Layout/Basic Horizontal Layout");
+    if (ImGui::TreeNode("Basic Horizontal Layout"))
+    {
+        ImGui::TextWrapped("(Use ImGui::SameLine() to keep adding items to the right of the preceding item)");
+
+        // Text
+        IMGUI_DEMO_MARKER("Layout/Basic Horizontal Layout/SameLine");
+        ImGui::Text("Two items: Hello"); ImGui::SameLine();
+        ImGui::TextColored(ImVec4(1,1,0,1), "Sailor");
+
+        // Adjust spacing
+        ImGui::Text("More spacing: Hello"); ImGui::SameLine(0, 20);
+        ImGui::TextColored(ImVec4(1,1,0,1), "Sailor");
+
+        // Button
+        ImGui::AlignTextToFramePadding();
+        ImGui::Text("Normal buttons"); ImGui::SameLine();
+        ImGui::Button("Banana"); ImGui::SameLine();
+        ImGui::Button("Apple"); ImGui::SameLine();
+        ImGui::Button("Corniflower");
+
+        // Button
+        ImGui::Text("Small buttons"); ImGui::SameLine();
+        ImGui::SmallButton("Like this one"); ImGui::SameLine();
+        ImGui::Text("can fit within a text block.");
+
+        // Aligned to arbitrary position. Easy/cheap column.
+        IMGUI_DEMO_MARKER("Layout/Basic Horizontal Layout/SameLine (with offset)");
+        ImGui::Text("Aligned");
+        ImGui::SameLine(150); ImGui::Text("x=150");
+        ImGui::SameLine(300); ImGui::Text("x=300");
+        ImGui::Text("Aligned");
+        ImGui::SameLine(150); ImGui::SmallButton("x=150");
+        ImGui::SameLine(300); ImGui::SmallButton("x=300");
+
+        // Checkbox
+        IMGUI_DEMO_MARKER("Layout/Basic Horizontal Layout/SameLine (more)");
+        static bool c1 = false, c2 = false, c3 = false, c4 = false;
+        ImGui::Checkbox("My", &c1); ImGui::SameLine();
+        ImGui::Checkbox("Tailor", &c2); ImGui::SameLine();
+        ImGui::Checkbox("Is", &c3); ImGui::SameLine();
+        ImGui::Checkbox("Rich", &c4);
+
+        // Various
+        static float f0 = 1.0f, f1 = 2.0f, f2 = 3.0f;
+        ImGui::PushItemWidth(80);
+        const char* items[] = { "AAAA", "BBBB", "CCCC", "DDDD" };
+        static int item = -1;
+        ImGui::Combo("Combo", &item, items, IM_ARRAYSIZE(items)); ImGui::SameLine();
+        ImGui::SliderFloat("X", &f0, 0.0f, 5.0f); ImGui::SameLine();
+        ImGui::SliderFloat("Y", &f1, 0.0f, 5.0f); ImGui::SameLine();
+        ImGui::SliderFloat("Z", &f2, 0.0f, 5.0f);
+        ImGui::PopItemWidth();
+
+        ImGui::PushItemWidth(80);
+        ImGui::Text("Lists:");
+        static int selection[4] = { 0, 1, 2, 3 };
+        for (int i = 0; i < 4; i++)
+        {
+            if (i > 0) ImGui::SameLine();
+            ImGui::PushID(i);
+            ImGui::ListBox("", &selection[i], items, IM_ARRAYSIZE(items));
+            ImGui::PopID();
+            //if (ImGui::IsItemHovered()) ImGui::SetTooltip("ListBox %d hovered", i);
+        }
+        ImGui::PopItemWidth();
+
+        // Dummy
+        IMGUI_DEMO_MARKER("Layout/Basic Horizontal Layout/Dummy");
+        ImVec2 button_sz(40, 40);
+        ImGui::Button("A", button_sz); ImGui::SameLine();
+        ImGui::Dummy(button_sz); ImGui::SameLine();
+        ImGui::Button("B", button_sz);
+
+        // Manually wrapping
+        // (we should eventually provide this as an automatic layout feature, but for now you can do it manually)
+        IMGUI_DEMO_MARKER("Layout/Basic Horizontal Layout/Manual wrapping");
+        ImGui::Text("Manual wrapping:");
+        ImGuiStyle& style = ImGui::GetStyle();
+        int buttons_count = 20;
+        float window_visible_x2 = ImGui::GetWindowPos().x + ImGui::GetWindowContentRegionMax().x;
+        for (int n = 0; n < buttons_count; n++)
+        {
+            ImGui::PushID(n);
+            ImGui::Button("Box", button_sz);
+            float last_button_x2 = ImGui::GetItemRectMax().x;
+            float next_button_x2 = last_button_x2 + style.ItemSpacing.x + button_sz.x; // Expected position if next button was on same line
+            if (n + 1 < buttons_count && next_button_x2 < window_visible_x2)
+                ImGui::SameLine();
+            ImGui::PopID();
+        }
+
+        ImGui::TreePop();
+    }
+
+    IMGUI_DEMO_MARKER("Layout/Groups");
+    if (ImGui::TreeNode("Groups"))
+    {
+        HelpMarker(
+            "BeginGroup() basically locks the horizontal position for new line. "
+            "EndGroup() bundles the whole group so that you can use \"item\" functions such as "
+            "IsItemHovered()/IsItemActive() or SameLine() etc. on the whole group.");
+        ImGui::BeginGroup();
+        {
+            ImGui::BeginGroup();
+            ImGui::Button("AAA");
+            ImGui::SameLine();
+            ImGui::Button("BBB");
+            ImGui::SameLine();
+            ImGui::BeginGroup();
+            ImGui::Button("CCC");
+            ImGui::Button("DDD");
+            ImGui::EndGroup();
+            ImGui::SameLine();
+            ImGui::Button("EEE");
+            ImGui::EndGroup();
+            if (ImGui::IsItemHovered())
+                ImGui::SetTooltip("First group hovered");
+        }
+        // Capture the group size and create widgets using the same size
+        ImVec2 size = ImGui::GetItemRectSize();
+        const float values[5] = { 0.5f, 0.20f, 0.80f, 0.60f, 0.25f };
+        ImGui::PlotHistogram("##values", values, IM_ARRAYSIZE(values), 0, NULL, 0.0f, 1.0f, size);
+
+        ImGui::Button("ACTION", ImVec2((size.x - ImGui::GetStyle().ItemSpacing.x) * 0.5f, size.y));
+        ImGui::SameLine();
+        ImGui::Button("REACTION", ImVec2((size.x - ImGui::GetStyle().ItemSpacing.x) * 0.5f, size.y));
+        ImGui::EndGroup();
+        ImGui::SameLine();
+
+        ImGui::Button("LEVERAGE\nBUZZWORD", size);
+        ImGui::SameLine();
+
+        if (ImGui::BeginListBox("List", size))
+        {
+            ImGui::Selectable("Selected", true);
+            ImGui::Selectable("Not Selected", false);
+            ImGui::EndListBox();
+        }
+
+        ImGui::TreePop();
+    }
+
+    IMGUI_DEMO_MARKER("Layout/Text Baseline Alignment");
+    if (ImGui::TreeNode("Text Baseline Alignment"))
+    {
+        {
+            ImGui::BulletText("Text baseline:");
+            ImGui::SameLine(); HelpMarker(
+                "This is testing the vertical alignment that gets applied on text to keep it aligned with widgets. "
+                "Lines only composed of text or \"small\" widgets use less vertical space than lines with framed widgets.");
+            ImGui::Indent();
+
+            ImGui::Text("KO Blahblah"); ImGui::SameLine();
+            ImGui::Button("Some framed item"); ImGui::SameLine();
+            HelpMarker("Baseline of button will look misaligned with text..");
+
+            // If your line starts with text, call AlignTextToFramePadding() to align text to upcoming widgets.
+            // (because we don't know what's coming after the Text() statement, we need to move the text baseline
+            // down by FramePadding.y ahead of time)
+            ImGui::AlignTextToFramePadding();
+            ImGui::Text("OK Blahblah"); ImGui::SameLine();
+            ImGui::Button("Some framed item"); ImGui::SameLine();
+            HelpMarker("We call AlignTextToFramePadding() to vertically align the text baseline by +FramePadding.y");
+
+            // SmallButton() uses the same vertical padding as Text
+            ImGui::Button("TEST##1"); ImGui::SameLine();
+            ImGui::Text("TEST"); ImGui::SameLine();
+            ImGui::SmallButton("TEST##2");
+
+            // If your line starts with text, call AlignTextToFramePadding() to align text to upcoming widgets.
+            ImGui::AlignTextToFramePadding();
+            ImGui::Text("Text aligned to framed item"); ImGui::SameLine();
+            ImGui::Button("Item##1"); ImGui::SameLine();
+            ImGui::Text("Item"); ImGui::SameLine();
+            ImGui::SmallButton("Item##2"); ImGui::SameLine();
+            ImGui::Button("Item##3");
+
+            ImGui::Unindent();
+        }
+
+        ImGui::Spacing();
+
+        {
+            ImGui::BulletText("Multi-line text:");
+            ImGui::Indent();
+            ImGui::Text("One\nTwo\nThree"); ImGui::SameLine();
+            ImGui::Text("Hello\nWorld"); ImGui::SameLine();
+            ImGui::Text("Banana");
+
+            ImGui::Text("Banana"); ImGui::SameLine();
+            ImGui::Text("Hello\nWorld"); ImGui::SameLine();
+            ImGui::Text("One\nTwo\nThree");
+
+            ImGui::Button("HOP##1"); ImGui::SameLine();
+            ImGui::Text("Banana"); ImGui::SameLine();
+            ImGui::Text("Hello\nWorld"); ImGui::SameLine();
+            ImGui::Text("Banana");
+
+            ImGui::Button("HOP##2"); ImGui::SameLine();
+            ImGui::Text("Hello\nWorld"); ImGui::SameLine();
+            ImGui::Text("Banana");
+            ImGui::Unindent();
+        }
+
+        ImGui::Spacing();
+
+        {
+            ImGui::BulletText("Misc items:");
+            ImGui::Indent();
+
+            // SmallButton() sets FramePadding to zero. Text baseline is aligned to match baseline of previous Button.
+            ImGui::Button("80x80", ImVec2(80, 80));
+            ImGui::SameLine();
+            ImGui::Button("50x50", ImVec2(50, 50));
+            ImGui::SameLine();
+            ImGui::Button("Button()");
+            ImGui::SameLine();
+            ImGui::SmallButton("SmallButton()");
+
+            // Tree
+            const float spacing = ImGui::GetStyle().ItemInnerSpacing.x;
+            ImGui::Button("Button##1");
+            ImGui::SameLine(0.0f, spacing);
+            if (ImGui::TreeNode("Node##1"))
+            {
+                // Placeholder tree data
+                for (int i = 0; i < 6; i++)
+                    ImGui::BulletText("Item %d..", i);
+                ImGui::TreePop();
+            }
+
+            // Vertically align text node a bit lower so it'll be vertically centered with upcoming widget.
+            // Otherwise you can use SmallButton() (smaller fit).
+            ImGui::AlignTextToFramePadding();
+
+            // Common mistake to avoid: if we want to SameLine after TreeNode we need to do it before we add
+            // other contents below the node.
+            bool node_open = ImGui::TreeNode("Node##2");
+            ImGui::SameLine(0.0f, spacing); ImGui::Button("Button##2");
+            if (node_open)
+            {
+                // Placeholder tree data
+                for (int i = 0; i < 6; i++)
+                    ImGui::BulletText("Item %d..", i);
+                ImGui::TreePop();
+            }
+
+            // Bullet
+            ImGui::Button("Button##3");
+            ImGui::SameLine(0.0f, spacing);
+            ImGui::BulletText("Bullet text");
+
+            ImGui::AlignTextToFramePadding();
+            ImGui::BulletText("Node");
+            ImGui::SameLine(0.0f, spacing); ImGui::Button("Button##4");
+            ImGui::Unindent();
+        }
+
+        ImGui::TreePop();
+    }
+
+    IMGUI_DEMO_MARKER("Layout/Scrolling");
+    if (ImGui::TreeNode("Scrolling"))
+    {
+        // Vertical scroll functions
+        IMGUI_DEMO_MARKER("Layout/Scrolling/Vertical");
+        HelpMarker("Use SetScrollHereY() or SetScrollFromPosY() to scroll to a given vertical position.");
+
+        static int track_item = 50;
+        static bool enable_track = true;
+        static bool enable_extra_decorations = false;
+        static float scroll_to_off_px = 0.0f;
+        static float scroll_to_pos_px = 200.0f;
+
+        ImGui::Checkbox("Decoration", &enable_extra_decorations);
+
+        ImGui::Checkbox("Track", &enable_track);
+        ImGui::PushItemWidth(100);
+        ImGui::SameLine(140); enable_track |= ImGui::DragInt("##item", &track_item, 0.25f, 0, 99, "Item = %d");
+
+        bool scroll_to_off = ImGui::Button("Scroll Offset");
+        ImGui::SameLine(140); scroll_to_off |= ImGui::DragFloat("##off", &scroll_to_off_px, 1.00f, 0, FLT_MAX, "+%.0f px");
+
+        bool scroll_to_pos = ImGui::Button("Scroll To Pos");
+        ImGui::SameLine(140); scroll_to_pos |= ImGui::DragFloat("##pos", &scroll_to_pos_px, 1.00f, -10, FLT_MAX, "X/Y = %.0f px");
+        ImGui::PopItemWidth();
+
+        if (scroll_to_off || scroll_to_pos)
+            enable_track = false;
+
+        ImGuiStyle& style = ImGui::GetStyle();
+        float child_w = (ImGui::GetContentRegionAvail().x - 4 * style.ItemSpacing.x) / 5;
+        if (child_w < 1.0f)
+            child_w = 1.0f;
+        ImGui::PushID("##VerticalScrolling");
+        for (int i = 0; i < 5; i++)
+        {
+            if (i > 0) ImGui::SameLine();
+            ImGui::BeginGroup();
+            const char* names[] = { "Top", "25%", "Center", "75%", "Bottom" };
+            ImGui::TextUnformatted(names[i]);
+
+            const ImGuiWindowFlags child_flags = enable_extra_decorations ? ImGuiWindowFlags_MenuBar : 0;
+            const ImGuiID child_id = ImGui::GetID((void*)(intptr_t)i);
+            const bool child_is_visible = ImGui::BeginChild(child_id, ImVec2(child_w, 200.0f), true, child_flags);
+            if (ImGui::BeginMenuBar())
+            {
+                ImGui::TextUnformatted("abc");
+                ImGui::EndMenuBar();
+            }
+            if (scroll_to_off)
+                ImGui::SetScrollY(scroll_to_off_px);
+            if (scroll_to_pos)
+                ImGui::SetScrollFromPosY(ImGui::GetCursorStartPos().y + scroll_to_pos_px, i * 0.25f);
+            if (child_is_visible) // Avoid calling SetScrollHereY when running with culled items
+            {
+                for (int item = 0; item < 100; item++)
+                {
+                    if (enable_track && item == track_item)
+                    {
+                        ImGui::TextColored(ImVec4(1, 1, 0, 1), "Item %d", item);
+                        ImGui::SetScrollHereY(i * 0.25f); // 0.0f:top, 0.5f:center, 1.0f:bottom
+                    }
+                    else
+                    {
+                        ImGui::Text("Item %d", item);
+                    }
+                }
+            }
+            float scroll_y = ImGui::GetScrollY();
+            float scroll_max_y = ImGui::GetScrollMaxY();
+            ImGui::EndChild();
+            ImGui::Text("%.0f/%.0f", scroll_y, scroll_max_y);
+            ImGui::EndGroup();
+        }
+        ImGui::PopID();
+
+        // Horizontal scroll functions
+        IMGUI_DEMO_MARKER("Layout/Scrolling/Horizontal");
+        ImGui::Spacing();
+        HelpMarker(
+            "Use SetScrollHereX() or SetScrollFromPosX() to scroll to a given horizontal position.\n\n"
+            "Because the clipping rectangle of most window hides half worth of WindowPadding on the "
+            "left/right, using SetScrollFromPosX(+1) will usually result in clipped text whereas the "
+            "equivalent SetScrollFromPosY(+1) wouldn't.");
+        ImGui::PushID("##HorizontalScrolling");
+        for (int i = 0; i < 5; i++)
+        {
+            float child_height = ImGui::GetTextLineHeight() + style.ScrollbarSize + style.WindowPadding.y * 2.0f;
+            ImGuiWindowFlags child_flags = ImGuiWindowFlags_HorizontalScrollbar | (enable_extra_decorations ? ImGuiWindowFlags_AlwaysVerticalScrollbar : 0);
+            ImGuiID child_id = ImGui::GetID((void*)(intptr_t)i);
+            bool child_is_visible = ImGui::BeginChild(child_id, ImVec2(-100, child_height), true, child_flags);
+            if (scroll_to_off)
+                ImGui::SetScrollX(scroll_to_off_px);
+            if (scroll_to_pos)
+                ImGui::SetScrollFromPosX(ImGui::GetCursorStartPos().x + scroll_to_pos_px, i * 0.25f);
+            if (child_is_visible) // Avoid calling SetScrollHereY when running with culled items
+            {
+                for (int item = 0; item < 100; item++)
+                {
+                    if (item > 0)
+                        ImGui::SameLine();
+                    if (enable_track && item == track_item)
+                    {
+                        ImGui::TextColored(ImVec4(1, 1, 0, 1), "Item %d", item);
+                        ImGui::SetScrollHereX(i * 0.25f); // 0.0f:left, 0.5f:center, 1.0f:right
+                    }
+                    else
+                    {
+                        ImGui::Text("Item %d", item);
+                    }
+                }
+            }
+            float scroll_x = ImGui::GetScrollX();
+            float scroll_max_x = ImGui::GetScrollMaxX();
+            ImGui::EndChild();
+            ImGui::SameLine();
+            const char* names[] = { "Left", "25%", "Center", "75%", "Right" };
+            ImGui::Text("%s\n%.0f/%.0f", names[i], scroll_x, scroll_max_x);
+            ImGui::Spacing();
+        }
+        ImGui::PopID();
+
+        // Miscellaneous Horizontal Scrolling Demo
+        IMGUI_DEMO_MARKER("Layout/Scrolling/Horizontal (more)");
+        HelpMarker(
+            "Horizontal scrolling for a window is enabled via the ImGuiWindowFlags_HorizontalScrollbar flag.\n\n"
+            "You may want to also explicitly specify content width by using SetNextWindowContentWidth() before Begin().");
+        static int lines = 7;
+        ImGui::SliderInt("Lines", &lines, 1, 15);
+        ImGui::PushStyleVar(ImGuiStyleVar_FrameRounding, 3.0f);
+        ImGui::PushStyleVar(ImGuiStyleVar_FramePadding, ImVec2(2.0f, 1.0f));
+        ImVec2 scrolling_child_size = ImVec2(0, ImGui::GetFrameHeightWithSpacing() * 7 + 30);
+        ImGui::BeginChild("scrolling", scrolling_child_size, true, ImGuiWindowFlags_HorizontalScrollbar);
+        for (int line = 0; line < lines; line++)
+        {
+            // Display random stuff. For the sake of this trivial demo we are using basic Button() + SameLine()
+            // If you want to create your own time line for a real application you may be better off manipulating
+            // the cursor position yourself, aka using SetCursorPos/SetCursorScreenPos to position the widgets
+            // yourself. You may also want to use the lower-level ImDrawList API.
+            int num_buttons = 10 + ((line & 1) ? line * 9 : line * 3);
+            for (int n = 0; n < num_buttons; n++)
+            {
+                if (n > 0) ImGui::SameLine();
+                ImGui::PushID(n + line * 1000);
+                char num_buf[16];
+                sprintf(num_buf, "%d", n);
+                const char* label = (!(n % 15)) ? "FizzBuzz" : (!(n % 3)) ? "Fizz" : (!(n % 5)) ? "Buzz" : num_buf;
+                float hue = n * 0.05f;
+                ImGui::PushStyleColor(ImGuiCol_Button, (ImVec4)ImColor::HSV(hue, 0.6f, 0.6f));
+                ImGui::PushStyleColor(ImGuiCol_ButtonHovered, (ImVec4)ImColor::HSV(hue, 0.7f, 0.7f));
+                ImGui::PushStyleColor(ImGuiCol_ButtonActive, (ImVec4)ImColor::HSV(hue, 0.8f, 0.8f));
+                ImGui::Button(label, ImVec2(40.0f + sinf((float)(line + n)) * 20.0f, 0.0f));
+                ImGui::PopStyleColor(3);
+                ImGui::PopID();
+            }
+        }
+        float scroll_x = ImGui::GetScrollX();
+        float scroll_max_x = ImGui::GetScrollMaxX();
+        ImGui::EndChild();
+        ImGui::PopStyleVar(2);
+        float scroll_x_delta = 0.0f;
+        ImGui::SmallButton("<<");
+        if (ImGui::IsItemActive())
+            scroll_x_delta = -ImGui::GetIO().DeltaTime * 1000.0f;
+        ImGui::SameLine();
+        ImGui::Text("Scroll from code"); ImGui::SameLine();
+        ImGui::SmallButton(">>");
+        if (ImGui::IsItemActive())
+            scroll_x_delta = +ImGui::GetIO().DeltaTime * 1000.0f;
+        ImGui::SameLine();
+        ImGui::Text("%.0f/%.0f", scroll_x, scroll_max_x);
+        if (scroll_x_delta != 0.0f)
+        {
+            // Demonstrate a trick: you can use Begin to set yourself in the context of another window
+            // (here we are already out of your child window)
+            ImGui::BeginChild("scrolling");
+            ImGui::SetScrollX(ImGui::GetScrollX() + scroll_x_delta);
+            ImGui::EndChild();
+        }
+        ImGui::Spacing();
+
+        static bool show_horizontal_contents_size_demo_window = false;
+        ImGui::Checkbox("Show Horizontal contents size demo window", &show_horizontal_contents_size_demo_window);
+
+        if (show_horizontal_contents_size_demo_window)
+        {
+            static bool show_h_scrollbar = true;
+            static bool show_button = true;
+            static bool show_tree_nodes = true;
+            static bool show_text_wrapped = false;
+            static bool show_columns = true;
+            static bool show_tab_bar = true;
+            static bool show_child = false;
+            static bool explicit_content_size = false;
+            static float contents_size_x = 300.0f;
+            if (explicit_content_size)
+                ImGui::SetNextWindowContentSize(ImVec2(contents_size_x, 0.0f));
+            ImGui::Begin("Horizontal contents size demo window", &show_horizontal_contents_size_demo_window, show_h_scrollbar ? ImGuiWindowFlags_HorizontalScrollbar : 0);
+            IMGUI_DEMO_MARKER("Layout/Scrolling/Horizontal contents size demo window");
+            ImGui::PushStyleVar(ImGuiStyleVar_ItemSpacing, ImVec2(2, 0));
+            ImGui::PushStyleVar(ImGuiStyleVar_FramePadding, ImVec2(2, 0));
+            HelpMarker("Test of different widgets react and impact the work rectangle growing when horizontal scrolling is enabled.\n\nUse 'Metrics->Tools->Show windows rectangles' to visualize rectangles.");
+            ImGui::Checkbox("H-scrollbar", &show_h_scrollbar);
+            ImGui::Checkbox("Button", &show_button);            // Will grow contents size (unless explicitly overwritten)
+            ImGui::Checkbox("Tree nodes", &show_tree_nodes);    // Will grow contents size and display highlight over full width
+            ImGui::Checkbox("Text wrapped", &show_text_wrapped);// Will grow and use contents size
+            ImGui::Checkbox("Columns", &show_columns);          // Will use contents size
+            ImGui::Checkbox("Tab bar", &show_tab_bar);          // Will use contents size
+            ImGui::Checkbox("Child", &show_child);              // Will grow and use contents size
+            ImGui::Checkbox("Explicit content size", &explicit_content_size);
+            ImGui::Text("Scroll %.1f/%.1f %.1f/%.1f", ImGui::GetScrollX(), ImGui::GetScrollMaxX(), ImGui::GetScrollY(), ImGui::GetScrollMaxY());
+            if (explicit_content_size)
+            {
+                ImGui::SameLine();
+                ImGui::SetNextItemWidth(100);
+                ImGui::DragFloat("##csx", &contents_size_x);
+                ImVec2 p = ImGui::GetCursorScreenPos();
+                ImGui::GetWindowDrawList()->AddRectFilled(p, ImVec2(p.x + 10, p.y + 10), IM_COL32_WHITE);
+                ImGui::GetWindowDrawList()->AddRectFilled(ImVec2(p.x + contents_size_x - 10, p.y), ImVec2(p.x + contents_size_x, p.y + 10), IM_COL32_WHITE);
+                ImGui::Dummy(ImVec2(0, 10));
+            }
+            ImGui::PopStyleVar(2);
+            ImGui::Separator();
+            if (show_button)
+            {
+                ImGui::Button("this is a 300-wide button", ImVec2(300, 0));
+            }
+            if (show_tree_nodes)
+            {
+                bool open = true;
+                if (ImGui::TreeNode("this is a tree node"))
+                {
+                    if (ImGui::TreeNode("another one of those tree node..."))
+                    {
+                        ImGui::Text("Some tree contents");
+                        ImGui::TreePop();
+                    }
+                    ImGui::TreePop();
+                }
+                ImGui::CollapsingHeader("CollapsingHeader", &open);
+            }
+            if (show_text_wrapped)
+            {
+                ImGui::TextWrapped("This text should automatically wrap on the edge of the work rectangle.");
+            }
+            if (show_columns)
+            {
+                ImGui::Text("Tables:");
+                if (ImGui::BeginTable("table", 4, ImGuiTableFlags_Borders))
+                {
+                    for (int n = 0; n < 4; n++)
+                    {
+                        ImGui::TableNextColumn();
+                        ImGui::Text("Width %.2f", ImGui::GetContentRegionAvail().x);
+                    }
+                    ImGui::EndTable();
+                }
+                ImGui::Text("Columns:");
+                ImGui::Columns(4);
+                for (int n = 0; n < 4; n++)
+                {
+                    ImGui::Text("Width %.2f", ImGui::GetColumnWidth());
+                    ImGui::NextColumn();
+                }
+                ImGui::Columns(1);
+            }
+            if (show_tab_bar && ImGui::BeginTabBar("Hello"))
+            {
+                if (ImGui::BeginTabItem("OneOneOne")) { ImGui::EndTabItem(); }
+                if (ImGui::BeginTabItem("TwoTwoTwo")) { ImGui::EndTabItem(); }
+                if (ImGui::BeginTabItem("ThreeThreeThree")) { ImGui::EndTabItem(); }
+                if (ImGui::BeginTabItem("FourFourFour")) { ImGui::EndTabItem(); }
+                ImGui::EndTabBar();
+            }
+            if (show_child)
+            {
+                ImGui::BeginChild("child", ImVec2(0, 0), true);
+                ImGui::EndChild();
+            }
+            ImGui::End();
+        }
+
+        ImGui::TreePop();
+    }
+
+    IMGUI_DEMO_MARKER("Layout/Clipping");
+    if (ImGui::TreeNode("Clipping"))
+    {
+        static ImVec2 size(100.0f, 100.0f);
+        static ImVec2 offset(30.0f, 30.0f);
+        ImGui::DragFloat2("size", (float*)&size, 0.5f, 1.0f, 200.0f, "%.0f");
+        ImGui::TextWrapped("(Click and drag to scroll)");
+
+        HelpMarker(
+            "(Left) Using ImGui::PushClipRect():\n"
+            "Will alter ImGui hit-testing logic + ImDrawList rendering.\n"
+            "(use this if you want your clipping rectangle to affect interactions)\n\n"
+            "(Center) Using ImDrawList::PushClipRect():\n"
+            "Will alter ImDrawList rendering only.\n"
+            "(use this as a shortcut if you are only using ImDrawList calls)\n\n"
+            "(Right) Using ImDrawList::AddText() with a fine ClipRect:\n"
+            "Will alter only this specific ImDrawList::AddText() rendering.\n"
+            "This is often used internally to avoid altering the clipping rectangle and minimize draw calls.");
+
+        for (int n = 0; n < 3; n++)
+        {
+            if (n > 0)
+                ImGui::SameLine();
+
+            ImGui::PushID(n);
+            ImGui::InvisibleButton("##canvas", size);
+            if (ImGui::IsItemActive() && ImGui::IsMouseDragging(ImGuiMouseButton_Left))
+            {
+                offset.x += ImGui::GetIO().MouseDelta.x;
+                offset.y += ImGui::GetIO().MouseDelta.y;
+            }
+            ImGui::PopID();
+            if (!ImGui::IsItemVisible()) // Skip rendering as ImDrawList elements are not clipped.
+                continue;
+
+            const ImVec2 p0 = ImGui::GetItemRectMin();
+            const ImVec2 p1 = ImGui::GetItemRectMax();
+            const char* text_str = "Line 1 hello\nLine 2 clip me!";
+            const ImVec2 text_pos = ImVec2(p0.x + offset.x, p0.y + offset.y);
+            ImDrawList* draw_list = ImGui::GetWindowDrawList();
+            switch (n)
+            {
+            case 0:
+                ImGui::PushClipRect(p0, p1, true);
+                draw_list->AddRectFilled(p0, p1, IM_COL32(90, 90, 120, 255));
+                draw_list->AddText(text_pos, IM_COL32_WHITE, text_str);
+                ImGui::PopClipRect();
+                break;
+            case 1:
+                draw_list->PushClipRect(p0, p1, true);
+                draw_list->AddRectFilled(p0, p1, IM_COL32(90, 90, 120, 255));
+                draw_list->AddText(text_pos, IM_COL32_WHITE, text_str);
+                draw_list->PopClipRect();
+                break;
+            case 2:
+                ImVec4 clip_rect(p0.x, p0.y, p1.x, p1.y); // AddText() takes a ImVec4* here so let's convert.
+                draw_list->AddRectFilled(p0, p1, IM_COL32(90, 90, 120, 255));
+                draw_list->AddText(ImGui::GetFont(), ImGui::GetFontSize(), text_pos, IM_COL32_WHITE, text_str, NULL, 0.0f, &clip_rect);
+                break;
+            }
+        }
+
+        ImGui::TreePop();
+    }
+}
+
+static void ShowDemoWindowPopups()
+{
+    IMGUI_DEMO_MARKER("Popups");
+    if (!ImGui::CollapsingHeader("Popups & Modal windows"))
+        return;
+
+    // The properties of popups windows are:
+    // - They block normal mouse hovering detection outside them. (*)
+    // - Unless modal, they can be closed by clicking anywhere outside them, or by pressing ESCAPE.
+    // - Their visibility state (~bool) is held internally by Dear ImGui instead of being held by the programmer as
+    //   we are used to with regular Begin() calls. User can manipulate the visibility state by calling OpenPopup().
+    // (*) One can use IsItemHovered(ImGuiHoveredFlags_AllowWhenBlockedByPopup) to bypass it and detect hovering even
+    //     when normally blocked by a popup.
+    // Those three properties are connected. The library needs to hold their visibility state BECAUSE it can close
+    // popups at any time.
+
+    // Typical use for regular windows:
+    //   bool my_tool_is_active = false; if (ImGui::Button("Open")) my_tool_is_active = true; [...] if (my_tool_is_active) Begin("My Tool", &my_tool_is_active) { [...] } End();
+    // Typical use for popups:
+    //   if (ImGui::Button("Open")) ImGui::OpenPopup("MyPopup"); if (ImGui::BeginPopup("MyPopup") { [...] EndPopup(); }
+
+    // With popups we have to go through a library call (here OpenPopup) to manipulate the visibility state.
+    // This may be a bit confusing at first but it should quickly make sense. Follow on the examples below.
+
+    IMGUI_DEMO_MARKER("Popups/Popups");
+    if (ImGui::TreeNode("Popups"))
+    {
+        ImGui::TextWrapped(
+            "When a popup is active, it inhibits interacting with windows that are behind the popup. "
+            "Clicking outside the popup closes it.");
+
+        static int selected_fish = -1;
+        const char* names[] = { "Bream", "Haddock", "Mackerel", "Pollock", "Tilefish" };
+        static bool toggles[] = { true, false, false, false, false };
+
+        // Simple selection popup (if you want to show the current selection inside the Button itself,
+        // you may want to build a string using the "###" operator to preserve a constant ID with a variable label)
+        if (ImGui::Button("Select.."))
+            ImGui::OpenPopup("my_select_popup");
+        ImGui::SameLine();
+        ImGui::TextUnformatted(selected_fish == -1 ? "<None>" : names[selected_fish]);
+        if (ImGui::BeginPopup("my_select_popup"))
+        {
+            ImGui::Text("Aquarium");
+            ImGui::Separator();
+            for (int i = 0; i < IM_ARRAYSIZE(names); i++)
+                if (ImGui::Selectable(names[i]))
+                    selected_fish = i;
+            ImGui::EndPopup();
+        }
+
+        // Showing a menu with toggles
+        if (ImGui::Button("Toggle.."))
+            ImGui::OpenPopup("my_toggle_popup");
+        if (ImGui::BeginPopup("my_toggle_popup"))
+        {
+            for (int i = 0; i < IM_ARRAYSIZE(names); i++)
+                ImGui::MenuItem(names[i], "", &toggles[i]);
+            if (ImGui::BeginMenu("Sub-menu"))
+            {
+                ImGui::MenuItem("Click me");
+                ImGui::EndMenu();
+            }
+
+            ImGui::Separator();
+            ImGui::Text("Tooltip here");
+            if (ImGui::IsItemHovered())
+                ImGui::SetTooltip("I am a tooltip over a popup");
+
+            if (ImGui::Button("Stacked Popup"))
+                ImGui::OpenPopup("another popup");
+            if (ImGui::BeginPopup("another popup"))
+            {
+                for (int i = 0; i < IM_ARRAYSIZE(names); i++)
+                    ImGui::MenuItem(names[i], "", &toggles[i]);
+                if (ImGui::BeginMenu("Sub-menu"))
+                {
+                    ImGui::MenuItem("Click me");
+                    if (ImGui::Button("Stacked Popup"))
+                        ImGui::OpenPopup("another popup");
+                    if (ImGui::BeginPopup("another popup"))
+                    {
+                        ImGui::Text("I am the last one here.");
+                        ImGui::EndPopup();
+                    }
+                    ImGui::EndMenu();
+                }
+                ImGui::EndPopup();
+            }
+            ImGui::EndPopup();
+        }
+
+        // Call the more complete ShowExampleMenuFile which we use in various places of this demo
+        if (ImGui::Button("With a menu.."))
+            ImGui::OpenPopup("my_file_popup");
+        if (ImGui::BeginPopup("my_file_popup", ImGuiWindowFlags_MenuBar))
+        {
+            if (ImGui::BeginMenuBar())
+            {
+                if (ImGui::BeginMenu("File"))
+                {
+                    ShowExampleMenuFile();
+                    ImGui::EndMenu();
+                }
+                if (ImGui::BeginMenu("Edit"))
+                {
+                    ImGui::MenuItem("Dummy");
+                    ImGui::EndMenu();
+                }
+                ImGui::EndMenuBar();
+            }
+            ImGui::Text("Hello from popup!");
+            ImGui::Button("This is a dummy button..");
+            ImGui::EndPopup();
+        }
+
+        ImGui::TreePop();
+    }
+
+    IMGUI_DEMO_MARKER("Popups/Context menus");
+    if (ImGui::TreeNode("Context menus"))
+    {
+        HelpMarker("\"Context\" functions are simple helpers to associate a Popup to a given Item or Window identifier.");
+
+        // BeginPopupContextItem() is a helper to provide common/simple popup behavior of essentially doing:
+        //     if (id == 0)
+        //         id = GetItemID(); // Use last item id
+        //     if (IsItemHovered() && IsMouseReleased(ImGuiMouseButton_Right))
+        //         OpenPopup(id);
+        //     return BeginPopup(id);
+        // For advanced advanced uses you may want to replicate and customize this code.
+        // See more details in BeginPopupContextItem().
+
+        // Example 1
+        // When used after an item that has an ID (e.g. Button), we can skip providing an ID to BeginPopupContextItem(),
+        // and BeginPopupContextItem() will use the last item ID as the popup ID.
+        {
+            const char* names[5] = { "Label1", "Label2", "Label3", "Label4", "Label5" };
+            for (int n = 0; n < 5; n++)
+            {
+                ImGui::Selectable(names[n]);
+                if (ImGui::BeginPopupContextItem()) // <-- use last item id as popup id
+                {
+                    ImGui::Text("This a popup for \"%s\"!", names[n]);
+                    if (ImGui::Button("Close"))
+                        ImGui::CloseCurrentPopup();
+                    ImGui::EndPopup();
+                }
+                if (ImGui::IsItemHovered())
+                    ImGui::SetTooltip("Right-click to open popup");
+            }
+        }
+
+        // Example 2
+        // Popup on a Text() element which doesn't have an identifier: we need to provide an identifier to BeginPopupContextItem().
+        // Using an explicit identifier is also convenient if you want to activate the popups from different locations.
+        {
+            HelpMarker("Text() elements don't have stable identifiers so we need to provide one.");
+            static float value = 0.5f;
+            ImGui::Text("Value = %.3f <-- (1) right-click this text", value);
+            if (ImGui::BeginPopupContextItem("my popup"))
+            {
+                if (ImGui::Selectable("Set to zero")) value = 0.0f;
+                if (ImGui::Selectable("Set to PI")) value = 3.1415f;
+                ImGui::SetNextItemWidth(-FLT_MIN);
+                ImGui::DragFloat("##Value", &value, 0.1f, 0.0f, 0.0f);
+                ImGui::EndPopup();
+            }
+
+            // We can also use OpenPopupOnItemClick() to toggle the visibility of a given popup.
+            // Here we make it that right-clicking this other text element opens the same popup as above.
+            // The popup itself will be submitted by the code above.
+            ImGui::Text("(2) Or right-click this text");
+            ImGui::OpenPopupOnItemClick("my popup", ImGuiPopupFlags_MouseButtonRight);
+
+            // Back to square one: manually open the same popup.
+            if (ImGui::Button("(3) Or click this button"))
+                ImGui::OpenPopup("my popup");
+        }
+
+        // Example 3
+        // When using BeginPopupContextItem() with an implicit identifier (NULL == use last item ID),
+        // we need to make sure your item identifier is stable.
+        // In this example we showcase altering the item label while preserving its identifier, using the ### operator (see FAQ).
+        {
+            HelpMarker("Showcase using a popup ID linked to item ID, with the item having a changing label + stable ID using the ### operator.");
+            static char name[32] = "Label1";
+            char buf[64];
+            sprintf(buf, "Button: %s###Button", name); // ### operator override ID ignoring the preceding label
+            ImGui::Button(buf);
+            if (ImGui::BeginPopupContextItem())
+            {
+                ImGui::Text("Edit name:");
+                ImGui::InputText("##edit", name, IM_ARRAYSIZE(name));
+                if (ImGui::Button("Close"))
+                    ImGui::CloseCurrentPopup();
+                ImGui::EndPopup();
+            }
+            ImGui::SameLine(); ImGui::Text("(<-- right-click here)");
+        }
+
+        ImGui::TreePop();
+    }
+
+    IMGUI_DEMO_MARKER("Popups/Modals");
+    if (ImGui::TreeNode("Modals"))
+    {
+        ImGui::TextWrapped("Modal windows are like popups but the user cannot close them by clicking outside.");
+
+        if (ImGui::Button("Delete.."))
+            ImGui::OpenPopup("Delete?");
+
+        // Always center this window when appearing
+        ImVec2 center = ImGui::GetMainViewport()->GetCenter();
+        ImGui::SetNextWindowPos(center, ImGuiCond_Appearing, ImVec2(0.5f, 0.5f));
+
+        if (ImGui::BeginPopupModal("Delete?", NULL, ImGuiWindowFlags_AlwaysAutoResize))
+        {
+            ImGui::Text("All those beautiful files will be deleted.\nThis operation cannot be undone!\n\n");
+            ImGui::Separator();
+
+            //static int unused_i = 0;
+            //ImGui::Combo("Combo", &unused_i, "Delete\0Delete harder\0");
+
+            static bool dont_ask_me_next_time = false;
+            ImGui::PushStyleVar(ImGuiStyleVar_FramePadding, ImVec2(0, 0));
+            ImGui::Checkbox("Don't ask me next time", &dont_ask_me_next_time);
+            ImGui::PopStyleVar();
+
+            if (ImGui::Button("OK", ImVec2(120, 0))) { ImGui::CloseCurrentPopup(); }
+            ImGui::SetItemDefaultFocus();
+            ImGui::SameLine();
+            if (ImGui::Button("Cancel", ImVec2(120, 0))) { ImGui::CloseCurrentPopup(); }
+            ImGui::EndPopup();
+        }
+
+        if (ImGui::Button("Stacked modals.."))
+            ImGui::OpenPopup("Stacked 1");
+        if (ImGui::BeginPopupModal("Stacked 1", NULL, ImGuiWindowFlags_MenuBar))
+        {
+            if (ImGui::BeginMenuBar())
+            {
+                if (ImGui::BeginMenu("File"))
+                {
+                    if (ImGui::MenuItem("Some menu item")) {}
+                    ImGui::EndMenu();
+                }
+                ImGui::EndMenuBar();
+            }
+            ImGui::Text("Hello from Stacked The First\nUsing style.Colors[ImGuiCol_ModalWindowDimBg] behind it.");
+
+            // Testing behavior of widgets stacking their own regular popups over the modal.
+            static int item = 1;
+            static float color[4] = { 0.4f, 0.7f, 0.0f, 0.5f };
+            ImGui::Combo("Combo", &item, "aaaa\0bbbb\0cccc\0dddd\0eeee\0\0");
+            ImGui::ColorEdit4("color", color);
+
+            if (ImGui::Button("Add another modal.."))
+                ImGui::OpenPopup("Stacked 2");
+
+            // Also demonstrate passing a bool* to BeginPopupModal(), this will create a regular close button which
+            // will close the popup. Note that the visibility state of popups is owned by imgui, so the input value
+            // of the bool actually doesn't matter here.
+            bool unused_open = true;
+            if (ImGui::BeginPopupModal("Stacked 2", &unused_open))
+            {
+                ImGui::Text("Hello from Stacked The Second!");
+                if (ImGui::Button("Close"))
+                    ImGui::CloseCurrentPopup();
+                ImGui::EndPopup();
+            }
+
+            if (ImGui::Button("Close"))
+                ImGui::CloseCurrentPopup();
+            ImGui::EndPopup();
+        }
+
+        ImGui::TreePop();
+    }
+
+    IMGUI_DEMO_MARKER("Popups/Menus inside a regular window");
+    if (ImGui::TreeNode("Menus inside a regular window"))
+    {
+        ImGui::TextWrapped("Below we are testing adding menu items to a regular window. It's rather unusual but should work!");
+        ImGui::Separator();
+
+        ImGui::MenuItem("Menu item", "CTRL+M");
+        if (ImGui::BeginMenu("Menu inside a regular window"))
+        {
+            ShowExampleMenuFile();
+            ImGui::EndMenu();
+        }
+        ImGui::Separator();
+        ImGui::TreePop();
+    }
+}
+
+// Dummy data structure that we use for the Table demo.
+// (pre-C++11 doesn't allow us to instantiate ImVector<MyItem> template if this structure if defined inside the demo function)
+namespace
+{
+// We are passing our own identifier to TableSetupColumn() to facilitate identifying columns in the sorting code.
+// This identifier will be passed down into ImGuiTableSortSpec::ColumnUserID.
+// But it is possible to omit the user id parameter of TableSetupColumn() and just use the column index instead! (ImGuiTableSortSpec::ColumnIndex)
+// If you don't use sorting, you will generally never care about giving column an ID!
+enum MyItemColumnID
+{
+    MyItemColumnID_ID,
+    MyItemColumnID_Name,
+    MyItemColumnID_Action,
+    MyItemColumnID_Quantity,
+    MyItemColumnID_Description
+};
+
+struct MyItem
+{
+    int         ID;
+    const char* Name;
+    int         Quantity;
+
+    // We have a problem which is affecting _only this demo_ and should not affect your code:
+    // As we don't rely on std:: or other third-party library to compile dear imgui, we only have reliable access to qsort(),
+    // however qsort doesn't allow passing user data to comparing function.
+    // As a workaround, we are storing the sort specs in a static/global for the comparing function to access.
+    // In your own use case you would probably pass the sort specs to your sorting/comparing functions directly and not use a global.
+    // We could technically call ImGui::TableGetSortSpecs() in CompareWithSortSpecs(), but considering that this function is called
+    // very often by the sorting algorithm it would be a little wasteful.
+    static const ImGuiTableSortSpecs* s_current_sort_specs;
+
+    // Compare function to be used by qsort()
+    static int IMGUI_CDECL CompareWithSortSpecs(const void* lhs, const void* rhs)
+    {
+        const MyItem* a = (const MyItem*)lhs;
+        const MyItem* b = (const MyItem*)rhs;
+        for (int n = 0; n < s_current_sort_specs->SpecsCount; n++)
+        {
+            // Here we identify columns using the ColumnUserID value that we ourselves passed to TableSetupColumn()
+            // We could also choose to identify columns based on their index (sort_spec->ColumnIndex), which is simpler!
+            const ImGuiTableColumnSortSpecs* sort_spec = &s_current_sort_specs->Specs[n];
+            int delta = 0;
+            switch (sort_spec->ColumnUserID)
+            {
+            case MyItemColumnID_ID:             delta = (a->ID - b->ID);                break;
+            case MyItemColumnID_Name:           delta = (strcmp(a->Name, b->Name));     break;
+            case MyItemColumnID_Quantity:       delta = (a->Quantity - b->Quantity);    break;
+            case MyItemColumnID_Description:    delta = (strcmp(a->Name, b->Name));     break;
+            default: IM_ASSERT(0); break;
+            }
+            if (delta > 0)
+                return (sort_spec->SortDirection == ImGuiSortDirection_Ascending) ? +1 : -1;
+            if (delta < 0)
+                return (sort_spec->SortDirection == ImGuiSortDirection_Ascending) ? -1 : +1;
+        }
+
+        // qsort() is instable so always return a way to differenciate items.
+        // Your own compare function may want to avoid fallback on implicit sort specs e.g. a Name compare if it wasn't already part of the sort specs.
+        return (a->ID - b->ID);
+    }
+};
+const ImGuiTableSortSpecs* MyItem::s_current_sort_specs = NULL;
+}
+
+// Make the UI compact because there are so many fields
+static void PushStyleCompact()
+{
+    ImGuiStyle& style = ImGui::GetStyle();
+    ImGui::PushStyleVar(ImGuiStyleVar_FramePadding, ImVec2(style.FramePadding.x, (float)(int)(style.FramePadding.y * 0.60f)));
+    ImGui::PushStyleVar(ImGuiStyleVar_ItemSpacing, ImVec2(style.ItemSpacing.x, (float)(int)(style.ItemSpacing.y * 0.60f)));
+}
+
+static void PopStyleCompact()
+{
+    ImGui::PopStyleVar(2);
+}
+
+// Show a combo box with a choice of sizing policies
+static void EditTableSizingFlags(ImGuiTableFlags* p_flags)
+{
+    struct EnumDesc { ImGuiTableFlags Value; const char* Name; const char* Tooltip; };
+    static const EnumDesc policies[] =
+    {
+        { ImGuiTableFlags_None,               "Default",                            "Use default sizing policy:\n- ImGuiTableFlags_SizingFixedFit if ScrollX is on or if host window has ImGuiWindowFlags_AlwaysAutoResize.\n- ImGuiTableFlags_SizingStretchSame otherwise." },
+        { ImGuiTableFlags_SizingFixedFit,     "ImGuiTableFlags_SizingFixedFit",     "Columns default to _WidthFixed (if resizable) or _WidthAuto (if not resizable), matching contents width." },
+        { ImGuiTableFlags_SizingFixedSame,    "ImGuiTableFlags_SizingFixedSame",    "Columns are all the same width, matching the maximum contents width.\nImplicitly disable ImGuiTableFlags_Resizable and enable ImGuiTableFlags_NoKeepColumnsVisible." },
+        { ImGuiTableFlags_SizingStretchProp,  "ImGuiTableFlags_SizingStretchProp",  "Columns default to _WidthStretch with weights proportional to their widths." },
+        { ImGuiTableFlags_SizingStretchSame,  "ImGuiTableFlags_SizingStretchSame",  "Columns default to _WidthStretch with same weights." }
+    };
+    int idx;
+    for (idx = 0; idx < IM_ARRAYSIZE(policies); idx++)
+        if (policies[idx].Value == (*p_flags & ImGuiTableFlags_SizingMask_))
+            break;
+    const char* preview_text = (idx < IM_ARRAYSIZE(policies)) ? policies[idx].Name + (idx > 0 ? strlen("ImGuiTableFlags") : 0) : "";
+    if (ImGui::BeginCombo("Sizing Policy", preview_text))
+    {
+        for (int n = 0; n < IM_ARRAYSIZE(policies); n++)
+            if (ImGui::Selectable(policies[n].Name, idx == n))
+                *p_flags = (*p_flags & ~ImGuiTableFlags_SizingMask_) | policies[n].Value;
+        ImGui::EndCombo();
+    }
+    ImGui::SameLine();
+    ImGui::TextDisabled("(?)");
+    if (ImGui::IsItemHovered())
+    {
+        ImGui::BeginTooltip();
+        ImGui::PushTextWrapPos(ImGui::GetFontSize() * 50.0f);
+        for (int m = 0; m < IM_ARRAYSIZE(policies); m++)
+        {
+            ImGui::Separator();
+            ImGui::Text("%s:", policies[m].Name);
+            ImGui::Separator();
+            ImGui::SetCursorPosX(ImGui::GetCursorPosX() + ImGui::GetStyle().IndentSpacing * 0.5f);
+            ImGui::TextUnformatted(policies[m].Tooltip);
+        }
+        ImGui::PopTextWrapPos();
+        ImGui::EndTooltip();
+    }
+}
+
+static void EditTableColumnsFlags(ImGuiTableColumnFlags* p_flags)
+{
+    ImGui::CheckboxFlags("_Disabled", p_flags, ImGuiTableColumnFlags_Disabled); ImGui::SameLine(); HelpMarker("Master disable flag (also hide from context menu)");
+    ImGui::CheckboxFlags("_DefaultHide", p_flags, ImGuiTableColumnFlags_DefaultHide);
+    ImGui::CheckboxFlags("_DefaultSort", p_flags, ImGuiTableColumnFlags_DefaultSort);
+    if (ImGui::CheckboxFlags("_WidthStretch", p_flags, ImGuiTableColumnFlags_WidthStretch))
+        *p_flags &= ~(ImGuiTableColumnFlags_WidthMask_ ^ ImGuiTableColumnFlags_WidthStretch);
+    if (ImGui::CheckboxFlags("_WidthFixed", p_flags, ImGuiTableColumnFlags_WidthFixed))
+        *p_flags &= ~(ImGuiTableColumnFlags_WidthMask_ ^ ImGuiTableColumnFlags_WidthFixed);
+    ImGui::CheckboxFlags("_NoResize", p_flags, ImGuiTableColumnFlags_NoResize);
+    ImGui::CheckboxFlags("_NoReorder", p_flags, ImGuiTableColumnFlags_NoReorder);
+    ImGui::CheckboxFlags("_NoHide", p_flags, ImGuiTableColumnFlags_NoHide);
+    ImGui::CheckboxFlags("_NoClip", p_flags, ImGuiTableColumnFlags_NoClip);
+    ImGui::CheckboxFlags("_NoSort", p_flags, ImGuiTableColumnFlags_NoSort);
+    ImGui::CheckboxFlags("_NoSortAscending", p_flags, ImGuiTableColumnFlags_NoSortAscending);
+    ImGui::CheckboxFlags("_NoSortDescending", p_flags, ImGuiTableColumnFlags_NoSortDescending);
+    ImGui::CheckboxFlags("_NoHeaderLabel", p_flags, ImGuiTableColumnFlags_NoHeaderLabel);
+    ImGui::CheckboxFlags("_NoHeaderWidth", p_flags, ImGuiTableColumnFlags_NoHeaderWidth);
+    ImGui::CheckboxFlags("_PreferSortAscending", p_flags, ImGuiTableColumnFlags_PreferSortAscending);
+    ImGui::CheckboxFlags("_PreferSortDescending", p_flags, ImGuiTableColumnFlags_PreferSortDescending);
+    ImGui::CheckboxFlags("_IndentEnable", p_flags, ImGuiTableColumnFlags_IndentEnable); ImGui::SameLine(); HelpMarker("Default for column 0");
+    ImGui::CheckboxFlags("_IndentDisable", p_flags, ImGuiTableColumnFlags_IndentDisable); ImGui::SameLine(); HelpMarker("Default for column >0");
+}
+
+static void ShowTableColumnsStatusFlags(ImGuiTableColumnFlags flags)
+{
+    ImGui::CheckboxFlags("_IsEnabled", &flags, ImGuiTableColumnFlags_IsEnabled);
+    ImGui::CheckboxFlags("_IsVisible", &flags, ImGuiTableColumnFlags_IsVisible);
+    ImGui::CheckboxFlags("_IsSorted", &flags, ImGuiTableColumnFlags_IsSorted);
+    ImGui::CheckboxFlags("_IsHovered", &flags, ImGuiTableColumnFlags_IsHovered);
+}
+
+static void ShowDemoWindowTables()
+{
+    //ImGui::SetNextItemOpen(true, ImGuiCond_Once);
+    IMGUI_DEMO_MARKER("Tables");
+    if (!ImGui::CollapsingHeader("Tables & Columns"))
+        return;
+
+    // Using those as a base value to create width/height that are factor of the size of our font
+    const float TEXT_BASE_WIDTH = ImGui::CalcTextSize("A").x;
+    const float TEXT_BASE_HEIGHT = ImGui::GetTextLineHeightWithSpacing();
+
+    ImGui::PushID("Tables");
+
+    int open_action = -1;
+    if (ImGui::Button("Open all"))
+        open_action = 1;
+    ImGui::SameLine();
+    if (ImGui::Button("Close all"))
+        open_action = 0;
+    ImGui::SameLine();
+
+    // Options
+    static bool disable_indent = false;
+    ImGui::Checkbox("Disable tree indentation", &disable_indent);
+    ImGui::SameLine();
+    HelpMarker("Disable the indenting of tree nodes so demo tables can use the full window width.");
+    ImGui::Separator();
+    if (disable_indent)
+        ImGui::PushStyleVar(ImGuiStyleVar_IndentSpacing, 0.0f);
+
+    // About Styling of tables
+    // Most settings are configured on a per-table basis via the flags passed to BeginTable() and TableSetupColumns APIs.
+    // There are however a few settings that a shared and part of the ImGuiStyle structure:
+    //   style.CellPadding                          // Padding within each cell
+    //   style.Colors[ImGuiCol_TableHeaderBg]       // Table header background
+    //   style.Colors[ImGuiCol_TableBorderStrong]   // Table outer and header borders
+    //   style.Colors[ImGuiCol_TableBorderLight]    // Table inner borders
+    //   style.Colors[ImGuiCol_TableRowBg]          // Table row background when ImGuiTableFlags_RowBg is enabled (even rows)
+    //   style.Colors[ImGuiCol_TableRowBgAlt]       // Table row background when ImGuiTableFlags_RowBg is enabled (odds rows)
+
+    // Demos
+    if (open_action != -1)
+        ImGui::SetNextItemOpen(open_action != 0);
+    IMGUI_DEMO_MARKER("Tables/Basic");
+    if (ImGui::TreeNode("Basic"))
+    {
+        // Here we will showcase three different ways to output a table.
+        // They are very simple variations of a same thing!
+
+        // [Method 1] Using TableNextRow() to create a new row, and TableSetColumnIndex() to select the column.
+        // In many situations, this is the most flexible and easy to use pattern.
+        HelpMarker("Using TableNextRow() + calling TableSetColumnIndex() _before_ each cell, in a loop.");
+        if (ImGui::BeginTable("table1", 3))
+        {
+            for (int row = 0; row < 4; row++)
+            {
+                ImGui::TableNextRow();
+                for (int column = 0; column < 3; column++)
+                {
+                    ImGui::TableSetColumnIndex(column);
+                    ImGui::Text("Row %d Column %d", row, column);
+                }
+            }
+            ImGui::EndTable();
+        }
+
+        // [Method 2] Using TableNextColumn() called multiple times, instead of using a for loop + TableSetColumnIndex().
+        // This is generally more convenient when you have code manually submitting the contents of each columns.
+        HelpMarker("Using TableNextRow() + calling TableNextColumn() _before_ each cell, manually.");
+        if (ImGui::BeginTable("table2", 3))
+        {
+            for (int row = 0; row < 4; row++)
+            {
+                ImGui::TableNextRow();
+                ImGui::TableNextColumn();
+                ImGui::Text("Row %d", row);
+                ImGui::TableNextColumn();
+                ImGui::Text("Some contents");
+                ImGui::TableNextColumn();
+                ImGui::Text("123.456");
+            }
+            ImGui::EndTable();
+        }
+
+        // [Method 3] We call TableNextColumn() _before_ each cell. We never call TableNextRow(),
+        // as TableNextColumn() will automatically wrap around and create new roes as needed.
+        // This is generally more convenient when your cells all contains the same type of data.
+        HelpMarker(
+            "Only using TableNextColumn(), which tends to be convenient for tables where every cells contains the same type of contents.\n"
+            "This is also more similar to the old NextColumn() function of the Columns API, and provided to facilitate the Columns->Tables API transition.");
+        if (ImGui::BeginTable("table3", 3))
+        {
+            for (int item = 0; item < 14; item++)
+            {
+                ImGui::TableNextColumn();
+                ImGui::Text("Item %d", item);
+            }
+            ImGui::EndTable();
+        }
+
+        ImGui::TreePop();
+    }
+
+    if (open_action != -1)
+        ImGui::SetNextItemOpen(open_action != 0);
+    IMGUI_DEMO_MARKER("Tables/Borders, background");
+    if (ImGui::TreeNode("Borders, background"))
+    {
+        // Expose a few Borders related flags interactively
+        enum ContentsType { CT_Text, CT_FillButton };
+        static ImGuiTableFlags flags = ImGuiTableFlags_Borders | ImGuiTableFlags_RowBg;
+        static bool display_headers = false;
+        static int contents_type = CT_Text;
+
+        PushStyleCompact();
+        ImGui::CheckboxFlags("ImGuiTableFlags_RowBg", &flags, ImGuiTableFlags_RowBg);
+        ImGui::CheckboxFlags("ImGuiTableFlags_Borders", &flags, ImGuiTableFlags_Borders);
+        ImGui::SameLine(); HelpMarker("ImGuiTableFlags_Borders\n = ImGuiTableFlags_BordersInnerV\n | ImGuiTableFlags_BordersOuterV\n | ImGuiTableFlags_BordersInnerV\n | ImGuiTableFlags_BordersOuterH");
+        ImGui::Indent();
+
+        ImGui::CheckboxFlags("ImGuiTableFlags_BordersH", &flags, ImGuiTableFlags_BordersH);
+        ImGui::Indent();
+        ImGui::CheckboxFlags("ImGuiTableFlags_BordersOuterH", &flags, ImGuiTableFlags_BordersOuterH);
+        ImGui::CheckboxFlags("ImGuiTableFlags_BordersInnerH", &flags, ImGuiTableFlags_BordersInnerH);
+        ImGui::Unindent();
+
+        ImGui::CheckboxFlags("ImGuiTableFlags_BordersV", &flags, ImGuiTableFlags_BordersV);
+        ImGui::Indent();
+        ImGui::CheckboxFlags("ImGuiTableFlags_BordersOuterV", &flags, ImGuiTableFlags_BordersOuterV);
+        ImGui::CheckboxFlags("ImGuiTableFlags_BordersInnerV", &flags, ImGuiTableFlags_BordersInnerV);
+        ImGui::Unindent();
+
+        ImGui::CheckboxFlags("ImGuiTableFlags_BordersOuter", &flags, ImGuiTableFlags_BordersOuter);
+        ImGui::CheckboxFlags("ImGuiTableFlags_BordersInner", &flags, ImGuiTableFlags_BordersInner);
+        ImGui::Unindent();
+
+        ImGui::AlignTextToFramePadding(); ImGui::Text("Cell contents:");
+        ImGui::SameLine(); ImGui::RadioButton("Text", &contents_type, CT_Text);
+        ImGui::SameLine(); ImGui::RadioButton("FillButton", &contents_type, CT_FillButton);
+        ImGui::Checkbox("Display headers", &display_headers);
+        ImGui::CheckboxFlags("ImGuiTableFlags_NoBordersInBody", &flags, ImGuiTableFlags_NoBordersInBody); ImGui::SameLine(); HelpMarker("Disable vertical borders in columns Body (borders will always appears in Headers");
+        PopStyleCompact();
+
+        if (ImGui::BeginTable("table1", 3, flags))
+        {
+            // Display headers so we can inspect their interaction with borders.
+            // (Headers are not the main purpose of this section of the demo, so we are not elaborating on them too much. See other sections for details)
+            if (display_headers)
+            {
+                ImGui::TableSetupColumn("One");
+                ImGui::TableSetupColumn("Two");
+                ImGui::TableSetupColumn("Three");
+                ImGui::TableHeadersRow();
+            }
+
+            for (int row = 0; row < 5; row++)
+            {
+                ImGui::TableNextRow();
+                for (int column = 0; column < 3; column++)
+                {
+                    ImGui::TableSetColumnIndex(column);
+                    char buf[32];
+                    sprintf(buf, "Hello %d,%d", column, row);
+                    if (contents_type == CT_Text)
+                        ImGui::TextUnformatted(buf);
+                    else if (contents_type == CT_FillButton)
+                        ImGui::Button(buf, ImVec2(-FLT_MIN, 0.0f));
+                }
+            }
+            ImGui::EndTable();
+        }
+        ImGui::TreePop();
+    }
+
+    if (open_action != -1)
+        ImGui::SetNextItemOpen(open_action != 0);
+    IMGUI_DEMO_MARKER("Tables/Resizable, stretch");
+    if (ImGui::TreeNode("Resizable, stretch"))
+    {
+        // By default, if we don't enable ScrollX the sizing policy for each columns is "Stretch"
+        // Each columns maintain a sizing weight, and they will occupy all available width.
+        static ImGuiTableFlags flags = ImGuiTableFlags_SizingStretchSame | ImGuiTableFlags_Resizable | ImGuiTableFlags_BordersOuter | ImGuiTableFlags_BordersV | ImGuiTableFlags_ContextMenuInBody;
+        PushStyleCompact();
+        ImGui::CheckboxFlags("ImGuiTableFlags_Resizable", &flags, ImGuiTableFlags_Resizable);
+        ImGui::CheckboxFlags("ImGuiTableFlags_BordersV", &flags, ImGuiTableFlags_BordersV);
+        ImGui::SameLine(); HelpMarker("Using the _Resizable flag automatically enables the _BordersInnerV flag as well, this is why the resize borders are still showing when unchecking this.");
+        PopStyleCompact();
+
+        if (ImGui::BeginTable("table1", 3, flags))
+        {
+            for (int row = 0; row < 5; row++)
+            {
+                ImGui::TableNextRow();
+                for (int column = 0; column < 3; column++)
+                {
+                    ImGui::TableSetColumnIndex(column);
+                    ImGui::Text("Hello %d,%d", column, row);
+                }
+            }
+            ImGui::EndTable();
+        }
+        ImGui::TreePop();
+    }
+
+    if (open_action != -1)
+        ImGui::SetNextItemOpen(open_action != 0);
+    IMGUI_DEMO_MARKER("Tables/Resizable, fixed");
+    if (ImGui::TreeNode("Resizable, fixed"))
+    {
+        // Here we use ImGuiTableFlags_SizingFixedFit (even though _ScrollX is not set)
+        // So columns will adopt the "Fixed" policy and will maintain a fixed width regardless of the whole available width (unless table is small)
+        // If there is not enough available width to fit all columns, they will however be resized down.
+        // FIXME-TABLE: Providing a stretch-on-init would make sense especially for tables which don't have saved settings
+        HelpMarker(
+            "Using _Resizable + _SizingFixedFit flags.\n"
+            "Fixed-width columns generally makes more sense if you want to use horizontal scrolling.\n\n"
+            "Double-click a column border to auto-fit the column to its contents.");
+        PushStyleCompact();
+        static ImGuiTableFlags flags = ImGuiTableFlags_SizingFixedFit | ImGuiTableFlags_Resizable | ImGuiTableFlags_BordersOuter | ImGuiTableFlags_BordersV | ImGuiTableFlags_ContextMenuInBody;
+        ImGui::CheckboxFlags("ImGuiTableFlags_NoHostExtendX", &flags, ImGuiTableFlags_NoHostExtendX);
+        PopStyleCompact();
+
+        if (ImGui::BeginTable("table1", 3, flags))
+        {
+            for (int row = 0; row < 5; row++)
+            {
+                ImGui::TableNextRow();
+                for (int column = 0; column < 3; column++)
+                {
+                    ImGui::TableSetColumnIndex(column);
+                    ImGui::Text("Hello %d,%d", column, row);
+                }
+            }
+            ImGui::EndTable();
+        }
+        ImGui::TreePop();
+    }
+
+    if (open_action != -1)
+        ImGui::SetNextItemOpen(open_action != 0);
+    IMGUI_DEMO_MARKER("Tables/Resizable, mixed");
+    if (ImGui::TreeNode("Resizable, mixed"))
+    {
+        HelpMarker(
+            "Using TableSetupColumn() to alter resizing policy on a per-column basis.\n\n"
+            "When combining Fixed and Stretch columns, generally you only want one, maybe two trailing columns to use _WidthStretch.");
+        static ImGuiTableFlags flags = ImGuiTableFlags_SizingFixedFit | ImGuiTableFlags_RowBg | ImGuiTableFlags_Borders | ImGuiTableFlags_Resizable | ImGuiTableFlags_Reorderable | ImGuiTableFlags_Hideable;
+
+        if (ImGui::BeginTable("table1", 3, flags))
+        {
+            ImGui::TableSetupColumn("AAA", ImGuiTableColumnFlags_WidthFixed);
+            ImGui::TableSetupColumn("BBB", ImGuiTableColumnFlags_WidthFixed);
+            ImGui::TableSetupColumn("CCC", ImGuiTableColumnFlags_WidthStretch);
+            ImGui::TableHeadersRow();
+            for (int row = 0; row < 5; row++)
+            {
+                ImGui::TableNextRow();
+                for (int column = 0; column < 3; column++)
+                {
+                    ImGui::TableSetColumnIndex(column);
+                    ImGui::Text("%s %d,%d", (column == 2) ? "Stretch" : "Fixed", column, row);
+                }
+            }
+            ImGui::EndTable();
+        }
+        if (ImGui::BeginTable("table2", 6, flags))
+        {
+            ImGui::TableSetupColumn("AAA", ImGuiTableColumnFlags_WidthFixed);
+            ImGui::TableSetupColumn("BBB", ImGuiTableColumnFlags_WidthFixed);
+            ImGui::TableSetupColumn("CCC", ImGuiTableColumnFlags_WidthFixed | ImGuiTableColumnFlags_DefaultHide);
+            ImGui::TableSetupColumn("DDD", ImGuiTableColumnFlags_WidthStretch);
+            ImGui::TableSetupColumn("EEE", ImGuiTableColumnFlags_WidthStretch);
+            ImGui::TableSetupColumn("FFF", ImGuiTableColumnFlags_WidthStretch | ImGuiTableColumnFlags_DefaultHide);
+            ImGui::TableHeadersRow();
+            for (int row = 0; row < 5; row++)
+            {
+                ImGui::TableNextRow();
+                for (int column = 0; column < 6; column++)
+                {
+                    ImGui::TableSetColumnIndex(column);
+                    ImGui::Text("%s %d,%d", (column >= 3) ? "Stretch" : "Fixed", column, row);
+                }
+            }
+            ImGui::EndTable();
+        }
+        ImGui::TreePop();
+    }
+
+    if (open_action != -1)
+        ImGui::SetNextItemOpen(open_action != 0);
+    IMGUI_DEMO_MARKER("Tables/Reorderable, hideable, with headers");
+    if (ImGui::TreeNode("Reorderable, hideable, with headers"))
+    {
+        HelpMarker(
+            "Click and drag column headers to reorder columns.\n\n"
+            "Right-click on a header to open a context menu.");
+        static ImGuiTableFlags flags = ImGuiTableFlags_Resizable | ImGuiTableFlags_Reorderable | ImGuiTableFlags_Hideable | ImGuiTableFlags_BordersOuter | ImGuiTableFlags_BordersV;
+        PushStyleCompact();
+        ImGui::CheckboxFlags("ImGuiTableFlags_Resizable", &flags, ImGuiTableFlags_Resizable);
+        ImGui::CheckboxFlags("ImGuiTableFlags_Reorderable", &flags, ImGuiTableFlags_Reorderable);
+        ImGui::CheckboxFlags("ImGuiTableFlags_Hideable", &flags, ImGuiTableFlags_Hideable);
+        ImGui::CheckboxFlags("ImGuiTableFlags_NoBordersInBody", &flags, ImGuiTableFlags_NoBordersInBody);
+        ImGui::CheckboxFlags("ImGuiTableFlags_NoBordersInBodyUntilResize", &flags, ImGuiTableFlags_NoBordersInBodyUntilResize); ImGui::SameLine(); HelpMarker("Disable vertical borders in columns Body until hovered for resize (borders will always appears in Headers)");
+        PopStyleCompact();
+
+        if (ImGui::BeginTable("table1", 3, flags))
+        {
+            // Submit columns name with TableSetupColumn() and call TableHeadersRow() to create a row with a header in each column.
+            // (Later we will show how TableSetupColumn() has other uses, optional flags, sizing weight etc.)
+            ImGui::TableSetupColumn("One");
+            ImGui::TableSetupColumn("Two");
+            ImGui::TableSetupColumn("Three");
+            ImGui::TableHeadersRow();
+            for (int row = 0; row < 6; row++)
+            {
+                ImGui::TableNextRow();
+                for (int column = 0; column < 3; column++)
+                {
+                    ImGui::TableSetColumnIndex(column);
+                    ImGui::Text("Hello %d,%d", column, row);
+                }
+            }
+            ImGui::EndTable();
+        }
+
+        // Use outer_size.x == 0.0f instead of default to make the table as tight as possible (only valid when no scrolling and no stretch column)
+        if (ImGui::BeginTable("table2", 3, flags | ImGuiTableFlags_SizingFixedFit, ImVec2(0.0f, 0.0f)))
+        {
+            ImGui::TableSetupColumn("One");
+            ImGui::TableSetupColumn("Two");
+            ImGui::TableSetupColumn("Three");
+            ImGui::TableHeadersRow();
+            for (int row = 0; row < 6; row++)
+            {
+                ImGui::TableNextRow();
+                for (int column = 0; column < 3; column++)
+                {
+                    ImGui::TableSetColumnIndex(column);
+                    ImGui::Text("Fixed %d,%d", column, row);
+                }
+            }
+            ImGui::EndTable();
+        }
+        ImGui::TreePop();
+    }
+
+    if (open_action != -1)
+        ImGui::SetNextItemOpen(open_action != 0);
+    IMGUI_DEMO_MARKER("Tables/Padding");
+    if (ImGui::TreeNode("Padding"))
+    {
+        // First example: showcase use of padding flags and effect of BorderOuterV/BorderInnerV on X padding.
+        // We don't expose BorderOuterH/BorderInnerH here because they have no effect on X padding.
+        HelpMarker(
+            "We often want outer padding activated when any using features which makes the edges of a column visible:\n"
+            "e.g.:\n"
+            "- BorderOuterV\n"
+            "- any form of row selection\n"
+            "Because of this, activating BorderOuterV sets the default to PadOuterX. Using PadOuterX or NoPadOuterX you can override the default.\n\n"
+            "Actual padding values are using style.CellPadding.\n\n"
+            "In this demo we don't show horizontal borders to emphasis how they don't affect default horizontal padding.");
+
+        static ImGuiTableFlags flags1 = ImGuiTableFlags_BordersV;
+        PushStyleCompact();
+        ImGui::CheckboxFlags("ImGuiTableFlags_PadOuterX", &flags1, ImGuiTableFlags_PadOuterX);
+        ImGui::SameLine(); HelpMarker("Enable outer-most padding (default if ImGuiTableFlags_BordersOuterV is set)");
+        ImGui::CheckboxFlags("ImGuiTableFlags_NoPadOuterX", &flags1, ImGuiTableFlags_NoPadOuterX);
+        ImGui::SameLine(); HelpMarker("Disable outer-most padding (default if ImGuiTableFlags_BordersOuterV is not set)");
+        ImGui::CheckboxFlags("ImGuiTableFlags_NoPadInnerX", &flags1, ImGuiTableFlags_NoPadInnerX);
+        ImGui::SameLine(); HelpMarker("Disable inner padding between columns (double inner padding if BordersOuterV is on, single inner padding if BordersOuterV is off)");
+        ImGui::CheckboxFlags("ImGuiTableFlags_BordersOuterV", &flags1, ImGuiTableFlags_BordersOuterV);
+        ImGui::CheckboxFlags("ImGuiTableFlags_BordersInnerV", &flags1, ImGuiTableFlags_BordersInnerV);
+        static bool show_headers = false;
+        ImGui::Checkbox("show_headers", &show_headers);
+        PopStyleCompact();
+
+        if (ImGui::BeginTable("table_padding", 3, flags1))
+        {
+            if (show_headers)
+            {
+                ImGui::TableSetupColumn("One");
+                ImGui::TableSetupColumn("Two");
+                ImGui::TableSetupColumn("Three");
+                ImGui::TableHeadersRow();
+            }
+
+            for (int row = 0; row < 5; row++)
+            {
+                ImGui::TableNextRow();
+                for (int column = 0; column < 3; column++)
+                {
+                    ImGui::TableSetColumnIndex(column);
+                    if (row == 0)
+                    {
+                        ImGui::Text("Avail %.2f", ImGui::GetContentRegionAvail().x);
+                    }
+                    else
+                    {
+                        char buf[32];
+                        sprintf(buf, "Hello %d,%d", column, row);
+                        ImGui::Button(buf, ImVec2(-FLT_MIN, 0.0f));
+                    }
+                    //if (ImGui::TableGetColumnFlags() & ImGuiTableColumnFlags_IsHovered)
+                    //    ImGui::TableSetBgColor(ImGuiTableBgTarget_CellBg, IM_COL32(0, 100, 0, 255));
+                }
+            }
+            ImGui::EndTable();
+        }
+
+        // Second example: set style.CellPadding to (0.0) or a custom value.
+        // FIXME-TABLE: Vertical border effectively not displayed the same way as horizontal one...
+        HelpMarker("Setting style.CellPadding to (0,0) or a custom value.");
+        static ImGuiTableFlags flags2 = ImGuiTableFlags_Borders | ImGuiTableFlags_RowBg;
+        static ImVec2 cell_padding(0.0f, 0.0f);
+        static bool show_widget_frame_bg = true;
+
+        PushStyleCompact();
+        ImGui::CheckboxFlags("ImGuiTableFlags_Borders", &flags2, ImGuiTableFlags_Borders);
+        ImGui::CheckboxFlags("ImGuiTableFlags_BordersH", &flags2, ImGuiTableFlags_BordersH);
+        ImGui::CheckboxFlags("ImGuiTableFlags_BordersV", &flags2, ImGuiTableFlags_BordersV);
+        ImGui::CheckboxFlags("ImGuiTableFlags_BordersInner", &flags2, ImGuiTableFlags_BordersInner);
+        ImGui::CheckboxFlags("ImGuiTableFlags_BordersOuter", &flags2, ImGuiTableFlags_BordersOuter);
+        ImGui::CheckboxFlags("ImGuiTableFlags_RowBg", &flags2, ImGuiTableFlags_RowBg);
+        ImGui::CheckboxFlags("ImGuiTableFlags_Resizable", &flags2, ImGuiTableFlags_Resizable);
+        ImGui::Checkbox("show_widget_frame_bg", &show_widget_frame_bg);
+        ImGui::SliderFloat2("CellPadding", &cell_padding.x, 0.0f, 10.0f, "%.0f");
+        PopStyleCompact();
+
+        ImGui::PushStyleVar(ImGuiStyleVar_CellPadding, cell_padding);
+        if (ImGui::BeginTable("table_padding_2", 3, flags2))
+        {
+            static char text_bufs[3 * 5][16]; // Mini text storage for 3x5 cells
+            static bool init = true;
+            if (!show_widget_frame_bg)
+                ImGui::PushStyleColor(ImGuiCol_FrameBg, 0);
+            for (int cell = 0; cell < 3 * 5; cell++)
+            {
+                ImGui::TableNextColumn();
+                if (init)
+                    strcpy(text_bufs[cell], "edit me");
+                ImGui::SetNextItemWidth(-FLT_MIN);
+                ImGui::PushID(cell);
+                ImGui::InputText("##cell", text_bufs[cell], IM_ARRAYSIZE(text_bufs[cell]));
+                ImGui::PopID();
+            }
+            if (!show_widget_frame_bg)
+                ImGui::PopStyleColor();
+            init = false;
+            ImGui::EndTable();
+        }
+        ImGui::PopStyleVar();
+
+        ImGui::TreePop();
+    }
+
+    if (open_action != -1)
+        ImGui::SetNextItemOpen(open_action != 0);
+    IMGUI_DEMO_MARKER("Tables/Explicit widths");
+    if (ImGui::TreeNode("Sizing policies"))
+    {
+        static ImGuiTableFlags flags1 = ImGuiTableFlags_BordersV | ImGuiTableFlags_BordersOuterH | ImGuiTableFlags_RowBg | ImGuiTableFlags_ContextMenuInBody;
+        PushStyleCompact();
+        ImGui::CheckboxFlags("ImGuiTableFlags_Resizable", &flags1, ImGuiTableFlags_Resizable);
+        ImGui::CheckboxFlags("ImGuiTableFlags_NoHostExtendX", &flags1, ImGuiTableFlags_NoHostExtendX);
+        PopStyleCompact();
+
+        static ImGuiTableFlags sizing_policy_flags[4] = { ImGuiTableFlags_SizingFixedFit, ImGuiTableFlags_SizingFixedSame, ImGuiTableFlags_SizingStretchProp, ImGuiTableFlags_SizingStretchSame };
+        for (int table_n = 0; table_n < 4; table_n++)
+        {
+            ImGui::PushID(table_n);
+            ImGui::SetNextItemWidth(TEXT_BASE_WIDTH * 30);
+            EditTableSizingFlags(&sizing_policy_flags[table_n]);
+
+            // To make it easier to understand the different sizing policy,
+            // For each policy: we display one table where the columns have equal contents width, and one where the columns have different contents width.
+            if (ImGui::BeginTable("table1", 3, sizing_policy_flags[table_n] | flags1))
+            {
+                for (int row = 0; row < 3; row++)
+                {
+                    ImGui::TableNextRow();
+                    ImGui::TableNextColumn(); ImGui::Text("Oh dear");
+                    ImGui::TableNextColumn(); ImGui::Text("Oh dear");
+                    ImGui::TableNextColumn(); ImGui::Text("Oh dear");
+                }
+                ImGui::EndTable();
+            }
+            if (ImGui::BeginTable("table2", 3, sizing_policy_flags[table_n] | flags1))
+            {
+                for (int row = 0; row < 3; row++)
+                {
+                    ImGui::TableNextRow();
+                    ImGui::TableNextColumn(); ImGui::Text("AAAA");
+                    ImGui::TableNextColumn(); ImGui::Text("BBBBBBBB");
+                    ImGui::TableNextColumn(); ImGui::Text("CCCCCCCCCCCC");
+                }
+                ImGui::EndTable();
+            }
+            ImGui::PopID();
+        }
+
+        ImGui::Spacing();
+        ImGui::TextUnformatted("Advanced");
+        ImGui::SameLine();
+        HelpMarker("This section allows you to interact and see the effect of various sizing policies depending on whether Scroll is enabled and the contents of your columns.");
+
+        enum ContentsType { CT_ShowWidth, CT_ShortText, CT_LongText, CT_Button, CT_FillButton, CT_InputText };
+        static ImGuiTableFlags flags = ImGuiTableFlags_ScrollY | ImGuiTableFlags_Borders | ImGuiTableFlags_RowBg | ImGuiTableFlags_Resizable;
+        static int contents_type = CT_ShowWidth;
+        static int column_count = 3;
+
+        PushStyleCompact();
+        ImGui::PushID("Advanced");
+        ImGui::PushItemWidth(TEXT_BASE_WIDTH * 30);
+        EditTableSizingFlags(&flags);
+        ImGui::Combo("Contents", &contents_type, "Show width\0Short Text\0Long Text\0Button\0Fill Button\0InputText\0");
+        if (contents_type == CT_FillButton)
+        {
+            ImGui::SameLine();
+            HelpMarker("Be mindful that using right-alignment (e.g. size.x = -FLT_MIN) creates a feedback loop where contents width can feed into auto-column width can feed into contents width.");
+        }
+        ImGui::DragInt("Columns", &column_count, 0.1f, 1, 64, "%d", ImGuiSliderFlags_AlwaysClamp);
+        ImGui::CheckboxFlags("ImGuiTableFlags_Resizable", &flags, ImGuiTableFlags_Resizable);
+        ImGui::CheckboxFlags("ImGuiTableFlags_PreciseWidths", &flags, ImGuiTableFlags_PreciseWidths);
+        ImGui::SameLine(); HelpMarker("Disable distributing remainder width to stretched columns (width allocation on a 100-wide table with 3 columns: Without this flag: 33,33,34. With this flag: 33,33,33). With larger number of columns, resizing will appear to be less smooth.");
+        ImGui::CheckboxFlags("ImGuiTableFlags_ScrollX", &flags, ImGuiTableFlags_ScrollX);
+        ImGui::CheckboxFlags("ImGuiTableFlags_ScrollY", &flags, ImGuiTableFlags_ScrollY);
+        ImGui::CheckboxFlags("ImGuiTableFlags_NoClip", &flags, ImGuiTableFlags_NoClip);
+        ImGui::PopItemWidth();
+        ImGui::PopID();
+        PopStyleCompact();
+
+        if (ImGui::BeginTable("table2", column_count, flags, ImVec2(0.0f, TEXT_BASE_HEIGHT * 7)))
+        {
+            for (int cell = 0; cell < 10 * column_count; cell++)
+            {
+                ImGui::TableNextColumn();
+                int column = ImGui::TableGetColumnIndex();
+                int row = ImGui::TableGetRowIndex();
+
+                ImGui::PushID(cell);
+                char label[32];
+                static char text_buf[32] = "";
+                sprintf(label, "Hello %d,%d", column, row);
+                switch (contents_type)
+                {
+                case CT_ShortText:  ImGui::TextUnformatted(label); break;
+                case CT_LongText:   ImGui::Text("Some %s text %d,%d\nOver two lines..", column == 0 ? "long" : "longeeer", column, row); break;
+                case CT_ShowWidth:  ImGui::Text("W: %.1f", ImGui::GetContentRegionAvail().x); break;
+                case CT_Button:     ImGui::Button(label); break;
+                case CT_FillButton: ImGui::Button(label, ImVec2(-FLT_MIN, 0.0f)); break;
+                case CT_InputText:  ImGui::SetNextItemWidth(-FLT_MIN); ImGui::InputText("##", text_buf, IM_ARRAYSIZE(text_buf)); break;
+                }
+                ImGui::PopID();
+            }
+            ImGui::EndTable();
+        }
+        ImGui::TreePop();
+    }
+
+    if (open_action != -1)
+        ImGui::SetNextItemOpen(open_action != 0);
+    IMGUI_DEMO_MARKER("Tables/Vertical scrolling, with clipping");
+    if (ImGui::TreeNode("Vertical scrolling, with clipping"))
+    {
+        HelpMarker("Here we activate ScrollY, which will create a child window container to allow hosting scrollable contents.\n\nWe also demonstrate using ImGuiListClipper to virtualize the submission of many items.");
+        static ImGuiTableFlags flags = ImGuiTableFlags_ScrollY | ImGuiTableFlags_RowBg | ImGuiTableFlags_BordersOuter | ImGuiTableFlags_BordersV | ImGuiTableFlags_Resizable | ImGuiTableFlags_Reorderable | ImGuiTableFlags_Hideable;
+
+        PushStyleCompact();
+        ImGui::CheckboxFlags("ImGuiTableFlags_ScrollY", &flags, ImGuiTableFlags_ScrollY);
+        PopStyleCompact();
+
+        // When using ScrollX or ScrollY we need to specify a size for our table container!
+        // Otherwise by default the table will fit all available space, like a BeginChild() call.
+        ImVec2 outer_size = ImVec2(0.0f, TEXT_BASE_HEIGHT * 8);
+        if (ImGui::BeginTable("table_scrolly", 3, flags, outer_size))
+        {
+            ImGui::TableSetupScrollFreeze(0, 1); // Make top row always visible
+            ImGui::TableSetupColumn("One", ImGuiTableColumnFlags_None);
+            ImGui::TableSetupColumn("Two", ImGuiTableColumnFlags_None);
+            ImGui::TableSetupColumn("Three", ImGuiTableColumnFlags_None);
+            ImGui::TableHeadersRow();
+
+            // Demonstrate using clipper for large vertical lists
+            ImGuiListClipper clipper;
+            clipper.Begin(1000);
+            while (clipper.Step())
+            {
+                for (int row = clipper.DisplayStart; row < clipper.DisplayEnd; row++)
+                {
+                    ImGui::TableNextRow();
+                    for (int column = 0; column < 3; column++)
+                    {
+                        ImGui::TableSetColumnIndex(column);
+                        ImGui::Text("Hello %d,%d", column, row);
+                    }
+                }
+            }
+            ImGui::EndTable();
+        }
+        ImGui::TreePop();
+    }
+
+    if (open_action != -1)
+        ImGui::SetNextItemOpen(open_action != 0);
+    IMGUI_DEMO_MARKER("Tables/Horizontal scrolling");
+    if (ImGui::TreeNode("Horizontal scrolling"))
+    {
+        HelpMarker(
+            "When ScrollX is enabled, the default sizing policy becomes ImGuiTableFlags_SizingFixedFit, "
+            "as automatically stretching columns doesn't make much sense with horizontal scrolling.\n\n"
+            "Also note that as of the current version, you will almost always want to enable ScrollY along with ScrollX,"
+            "because the container window won't automatically extend vertically to fix contents (this may be improved in future versions).");
+        static ImGuiTableFlags flags = ImGuiTableFlags_ScrollX | ImGuiTableFlags_ScrollY | ImGuiTableFlags_RowBg | ImGuiTableFlags_BordersOuter | ImGuiTableFlags_BordersV | ImGuiTableFlags_Resizable | ImGuiTableFlags_Reorderable | ImGuiTableFlags_Hideable;
+        static int freeze_cols = 1;
+        static int freeze_rows = 1;
+
+        PushStyleCompact();
+        ImGui::CheckboxFlags("ImGuiTableFlags_Resizable", &flags, ImGuiTableFlags_Resizable);
+        ImGui::CheckboxFlags("ImGuiTableFlags_ScrollX", &flags, ImGuiTableFlags_ScrollX);
+        ImGui::CheckboxFlags("ImGuiTableFlags_ScrollY", &flags, ImGuiTableFlags_ScrollY);
+        ImGui::SetNextItemWidth(ImGui::GetFrameHeight());
+        ImGui::DragInt("freeze_cols", &freeze_cols, 0.2f, 0, 9, NULL, ImGuiSliderFlags_NoInput);
+        ImGui::SetNextItemWidth(ImGui::GetFrameHeight());
+        ImGui::DragInt("freeze_rows", &freeze_rows, 0.2f, 0, 9, NULL, ImGuiSliderFlags_NoInput);
+        PopStyleCompact();
+
+        // When using ScrollX or ScrollY we need to specify a size for our table container!
+        // Otherwise by default the table will fit all available space, like a BeginChild() call.
+        ImVec2 outer_size = ImVec2(0.0f, TEXT_BASE_HEIGHT * 8);
+        if (ImGui::BeginTable("table_scrollx", 7, flags, outer_size))
+        {
+            ImGui::TableSetupScrollFreeze(freeze_cols, freeze_rows);
+            ImGui::TableSetupColumn("Line #", ImGuiTableColumnFlags_NoHide); // Make the first column not hideable to match our use of TableSetupScrollFreeze()
+            ImGui::TableSetupColumn("One");
+            ImGui::TableSetupColumn("Two");
+            ImGui::TableSetupColumn("Three");
+            ImGui::TableSetupColumn("Four");
+            ImGui::TableSetupColumn("Five");
+            ImGui::TableSetupColumn("Six");
+            ImGui::TableHeadersRow();
+            for (int row = 0; row < 20; row++)
+            {
+                ImGui::TableNextRow();
+                for (int column = 0; column < 7; column++)
+                {
+                    // Both TableNextColumn() and TableSetColumnIndex() return true when a column is visible or performing width measurement.
+                    // Because here we know that:
+                    // - A) all our columns are contributing the same to row height
+                    // - B) column 0 is always visible,
+                    // We only always submit this one column and can skip others.
+                    // More advanced per-column clipping behaviors may benefit from polling the status flags via TableGetColumnFlags().
+                    if (!ImGui::TableSetColumnIndex(column) && column > 0)
+                        continue;
+                    if (column == 0)
+                        ImGui::Text("Line %d", row);
+                    else
+                        ImGui::Text("Hello world %d,%d", column, row);
+                }
+            }
+            ImGui::EndTable();
+        }
+
+        ImGui::Spacing();
+        ImGui::TextUnformatted("Stretch + ScrollX");
+        ImGui::SameLine();
+        HelpMarker(
+            "Showcase using Stretch columns + ScrollX together: "
+            "this is rather unusual and only makes sense when specifying an 'inner_width' for the table!\n"
+            "Without an explicit value, inner_width is == outer_size.x and therefore using Stretch columns + ScrollX together doesn't make sense.");
+        static ImGuiTableFlags flags2 = ImGuiTableFlags_SizingStretchSame | ImGuiTableFlags_ScrollX | ImGuiTableFlags_ScrollY | ImGuiTableFlags_BordersOuter | ImGuiTableFlags_RowBg | ImGuiTableFlags_ContextMenuInBody;
+        static float inner_width = 1000.0f;
+        PushStyleCompact();
+        ImGui::PushID("flags3");
+        ImGui::PushItemWidth(TEXT_BASE_WIDTH * 30);
+        ImGui::CheckboxFlags("ImGuiTableFlags_ScrollX", &flags2, ImGuiTableFlags_ScrollX);
+        ImGui::DragFloat("inner_width", &inner_width, 1.0f, 0.0f, FLT_MAX, "%.1f");
+        ImGui::PopItemWidth();
+        ImGui::PopID();
+        PopStyleCompact();
+        if (ImGui::BeginTable("table2", 7, flags2, outer_size, inner_width))
+        {
+            for (int cell = 0; cell < 20 * 7; cell++)
+            {
+                ImGui::TableNextColumn();
+                ImGui::Text("Hello world %d,%d", ImGui::TableGetColumnIndex(), ImGui::TableGetRowIndex());
+            }
+            ImGui::EndTable();
+        }
+        ImGui::TreePop();
+    }
+
+    if (open_action != -1)
+        ImGui::SetNextItemOpen(open_action != 0);
+    IMGUI_DEMO_MARKER("Tables/Columns flags");
+    if (ImGui::TreeNode("Columns flags"))
+    {
+        // Create a first table just to show all the options/flags we want to make visible in our example!
+        const int column_count = 3;
+        const char* column_names[column_count] = { "One", "Two", "Three" };
+        static ImGuiTableColumnFlags column_flags[column_count] = { ImGuiTableColumnFlags_DefaultSort, ImGuiTableColumnFlags_None, ImGuiTableColumnFlags_DefaultHide };
+        static ImGuiTableColumnFlags column_flags_out[column_count] = { 0, 0, 0 }; // Output from TableGetColumnFlags()
+
+        if (ImGui::BeginTable("table_columns_flags_checkboxes", column_count, ImGuiTableFlags_None))
+        {
+            PushStyleCompact();
+            for (int column = 0; column < column_count; column++)
+            {
+                ImGui::TableNextColumn();
+                ImGui::PushID(column);
+                ImGui::AlignTextToFramePadding(); // FIXME-TABLE: Workaround for wrong text baseline propagation across columns
+                ImGui::Text("'%s'", column_names[column]);
+                ImGui::Spacing();
+                ImGui::Text("Input flags:");
+                EditTableColumnsFlags(&column_flags[column]);
+                ImGui::Spacing();
+                ImGui::Text("Output flags:");
+                ImGui::BeginDisabled();
+                ShowTableColumnsStatusFlags(column_flags_out[column]);
+                ImGui::EndDisabled();
+                ImGui::PopID();
+            }
+            PopStyleCompact();
+            ImGui::EndTable();
+        }
+
+        // Create the real table we care about for the example!
+        // We use a scrolling table to be able to showcase the difference between the _IsEnabled and _IsVisible flags above, otherwise in
+        // a non-scrolling table columns are always visible (unless using ImGuiTableFlags_NoKeepColumnsVisible + resizing the parent window down)
+        const ImGuiTableFlags flags
+            = ImGuiTableFlags_SizingFixedFit | ImGuiTableFlags_ScrollX | ImGuiTableFlags_ScrollY
+            | ImGuiTableFlags_RowBg | ImGuiTableFlags_BordersOuter | ImGuiTableFlags_BordersV
+            | ImGuiTableFlags_Resizable | ImGuiTableFlags_Reorderable | ImGuiTableFlags_Hideable | ImGuiTableFlags_Sortable;
+        ImVec2 outer_size = ImVec2(0.0f, TEXT_BASE_HEIGHT * 9);
+        if (ImGui::BeginTable("table_columns_flags", column_count, flags, outer_size))
+        {
+            for (int column = 0; column < column_count; column++)
+                ImGui::TableSetupColumn(column_names[column], column_flags[column]);
+            ImGui::TableHeadersRow();
+            for (int column = 0; column < column_count; column++)
+                column_flags_out[column] = ImGui::TableGetColumnFlags(column);
+            float indent_step = (float)((int)TEXT_BASE_WIDTH / 2);
+            for (int row = 0; row < 8; row++)
+            {
+                ImGui::Indent(indent_step); // Add some indentation to demonstrate usage of per-column IndentEnable/IndentDisable flags.
+                ImGui::TableNextRow();
+                for (int column = 0; column < column_count; column++)
+                {
+                    ImGui::TableSetColumnIndex(column);
+                    ImGui::Text("%s %s", (column == 0) ? "Indented" : "Hello", ImGui::TableGetColumnName(column));
+                }
+            }
+            ImGui::Unindent(indent_step * 8.0f);
+
+            ImGui::EndTable();
+        }
+        ImGui::TreePop();
+    }
+
+    if (open_action != -1)
+        ImGui::SetNextItemOpen(open_action != 0);
+    IMGUI_DEMO_MARKER("Tables/Columns widths");
+    if (ImGui::TreeNode("Columns widths"))
+    {
+        HelpMarker("Using TableSetupColumn() to setup default width.");
+
+        static ImGuiTableFlags flags1 = ImGuiTableFlags_Borders | ImGuiTableFlags_NoBordersInBodyUntilResize;
+        PushStyleCompact();
+        ImGui::CheckboxFlags("ImGuiTableFlags_Resizable", &flags1, ImGuiTableFlags_Resizable);
+        ImGui::CheckboxFlags("ImGuiTableFlags_NoBordersInBodyUntilResize", &flags1, ImGuiTableFlags_NoBordersInBodyUntilResize);
+        PopStyleCompact();
+        if (ImGui::BeginTable("table1", 3, flags1))
+        {
+            // We could also set ImGuiTableFlags_SizingFixedFit on the table and all columns will default to ImGuiTableColumnFlags_WidthFixed.
+            ImGui::TableSetupColumn("one", ImGuiTableColumnFlags_WidthFixed, 100.0f); // Default to 100.0f
+            ImGui::TableSetupColumn("two", ImGuiTableColumnFlags_WidthFixed, 200.0f); // Default to 200.0f
+            ImGui::TableSetupColumn("three", ImGuiTableColumnFlags_WidthFixed);       // Default to auto
+            ImGui::TableHeadersRow();
+            for (int row = 0; row < 4; row++)
+            {
+                ImGui::TableNextRow();
+                for (int column = 0; column < 3; column++)
+                {
+                    ImGui::TableSetColumnIndex(column);
+                    if (row == 0)
+                        ImGui::Text("(w: %5.1f)", ImGui::GetContentRegionAvail().x);
+                    else
+                        ImGui::Text("Hello %d,%d", column, row);
+                }
+            }
+            ImGui::EndTable();
+        }
+
+        HelpMarker("Using TableSetupColumn() to setup explicit width.\n\nUnless _NoKeepColumnsVisible is set, fixed columns with set width may still be shrunk down if there's not enough space in the host.");
+
+        static ImGuiTableFlags flags2 = ImGuiTableFlags_None;
+        PushStyleCompact();
+        ImGui::CheckboxFlags("ImGuiTableFlags_NoKeepColumnsVisible", &flags2, ImGuiTableFlags_NoKeepColumnsVisible);
+        ImGui::CheckboxFlags("ImGuiTableFlags_BordersInnerV", &flags2, ImGuiTableFlags_BordersInnerV);
+        ImGui::CheckboxFlags("ImGuiTableFlags_BordersOuterV", &flags2, ImGuiTableFlags_BordersOuterV);
+        PopStyleCompact();
+        if (ImGui::BeginTable("table2", 4, flags2))
+        {
+            // We could also set ImGuiTableFlags_SizingFixedFit on the table and all columns will default to ImGuiTableColumnFlags_WidthFixed.
+            ImGui::TableSetupColumn("", ImGuiTableColumnFlags_WidthFixed, 100.0f);
+            ImGui::TableSetupColumn("", ImGuiTableColumnFlags_WidthFixed, TEXT_BASE_WIDTH * 15.0f);
+            ImGui::TableSetupColumn("", ImGuiTableColumnFlags_WidthFixed, TEXT_BASE_WIDTH * 30.0f);
+            ImGui::TableSetupColumn("", ImGuiTableColumnFlags_WidthFixed, TEXT_BASE_WIDTH * 15.0f);
+            for (int row = 0; row < 5; row++)
+            {
+                ImGui::TableNextRow();
+                for (int column = 0; column < 4; column++)
+                {
+                    ImGui::TableSetColumnIndex(column);
+                    if (row == 0)
+                        ImGui::Text("(w: %5.1f)", ImGui::GetContentRegionAvail().x);
+                    else
+                        ImGui::Text("Hello %d,%d", column, row);
+                }
+            }
+            ImGui::EndTable();
+        }
+        ImGui::TreePop();
+    }
+
+    if (open_action != -1)
+        ImGui::SetNextItemOpen(open_action != 0);
+    IMGUI_DEMO_MARKER("Tables/Nested tables");
+    if (ImGui::TreeNode("Nested tables"))
+    {
+        HelpMarker("This demonstrate embedding a table into another table cell.");
+
+        if (ImGui::BeginTable("table_nested1", 2, ImGuiTableFlags_Borders | ImGuiTableFlags_Resizable | ImGuiTableFlags_Reorderable | ImGuiTableFlags_Hideable))
+        {
+            ImGui::TableSetupColumn("A0");
+            ImGui::TableSetupColumn("A1");
+            ImGui::TableHeadersRow();
+
+            ImGui::TableNextColumn();
+            ImGui::Text("A0 Row 0");
+            {
+                float rows_height = TEXT_BASE_HEIGHT * 2;
+                if (ImGui::BeginTable("table_nested2", 2, ImGuiTableFlags_Borders | ImGuiTableFlags_Resizable | ImGuiTableFlags_Reorderable | ImGuiTableFlags_Hideable))
+                {
+                    ImGui::TableSetupColumn("B0");
+                    ImGui::TableSetupColumn("B1");
+                    ImGui::TableHeadersRow();
+
+                    ImGui::TableNextRow(ImGuiTableRowFlags_None, rows_height);
+                    ImGui::TableNextColumn();
+                    ImGui::Text("B0 Row 0");
+                    ImGui::TableNextColumn();
+                    ImGui::Text("B1 Row 0");
+                    ImGui::TableNextRow(ImGuiTableRowFlags_None, rows_height);
+                    ImGui::TableNextColumn();
+                    ImGui::Text("B0 Row 1");
+                    ImGui::TableNextColumn();
+                    ImGui::Text("B1 Row 1");
+
+                    ImGui::EndTable();
+                }
+            }
+            ImGui::TableNextColumn(); ImGui::Text("A1 Row 0");
+            ImGui::TableNextColumn(); ImGui::Text("A0 Row 1");
+            ImGui::TableNextColumn(); ImGui::Text("A1 Row 1");
+            ImGui::EndTable();
+        }
+        ImGui::TreePop();
+    }
+
+    if (open_action != -1)
+        ImGui::SetNextItemOpen(open_action != 0);
+    IMGUI_DEMO_MARKER("Tables/Row height");
+    if (ImGui::TreeNode("Row height"))
+    {
+        HelpMarker("You can pass a 'min_row_height' to TableNextRow().\n\nRows are padded with 'style.CellPadding.y' on top and bottom, so effectively the minimum row height will always be >= 'style.CellPadding.y * 2.0f'.\n\nWe cannot honor a _maximum_ row height as that would requires a unique clipping rectangle per row.");
+        if (ImGui::BeginTable("table_row_height", 1, ImGuiTableFlags_BordersOuter | ImGuiTableFlags_BordersInnerV))
+        {
+            for (int row = 0; row < 10; row++)
+            {
+                float min_row_height = (float)(int)(TEXT_BASE_HEIGHT * 0.30f * row);
+                ImGui::TableNextRow(ImGuiTableRowFlags_None, min_row_height);
+                ImGui::TableNextColumn();
+                ImGui::Text("min_row_height = %.2f", min_row_height);
+            }
+            ImGui::EndTable();
+        }
+        ImGui::TreePop();
+    }
+
+    if (open_action != -1)
+        ImGui::SetNextItemOpen(open_action != 0);
+    IMGUI_DEMO_MARKER("Tables/Outer size");
+    if (ImGui::TreeNode("Outer size"))
+    {
+        // Showcasing use of ImGuiTableFlags_NoHostExtendX and ImGuiTableFlags_NoHostExtendY
+        // Important to that note how the two flags have slightly different behaviors!
+        ImGui::Text("Using NoHostExtendX and NoHostExtendY:");
+        PushStyleCompact();
+        static ImGuiTableFlags flags = ImGuiTableFlags_Borders | ImGuiTableFlags_Resizable | ImGuiTableFlags_ContextMenuInBody | ImGuiTableFlags_RowBg | ImGuiTableFlags_SizingFixedFit | ImGuiTableFlags_NoHostExtendX;
+        ImGui::CheckboxFlags("ImGuiTableFlags_NoHostExtendX", &flags, ImGuiTableFlags_NoHostExtendX);
+        ImGui::SameLine(); HelpMarker("Make outer width auto-fit to columns, overriding outer_size.x value.\n\nOnly available when ScrollX/ScrollY are disabled and Stretch columns are not used.");
+        ImGui::CheckboxFlags("ImGuiTableFlags_NoHostExtendY", &flags, ImGuiTableFlags_NoHostExtendY);
+        ImGui::SameLine(); HelpMarker("Make outer height stop exactly at outer_size.y (prevent auto-extending table past the limit).\n\nOnly available when ScrollX/ScrollY are disabled. Data below the limit will be clipped and not visible.");
+        PopStyleCompact();
+
+        ImVec2 outer_size = ImVec2(0.0f, TEXT_BASE_HEIGHT * 5.5f);
+        if (ImGui::BeginTable("table1", 3, flags, outer_size))
+        {
+            for (int row = 0; row < 10; row++)
+            {
+                ImGui::TableNextRow();
+                for (int column = 0; column < 3; column++)
+                {
+                    ImGui::TableNextColumn();
+                    ImGui::Text("Cell %d,%d", column, row);
+                }
+            }
+            ImGui::EndTable();
+        }
+        ImGui::SameLine();
+        ImGui::Text("Hello!");
+
+        ImGui::Spacing();
+
+        ImGui::Text("Using explicit size:");
+        if (ImGui::BeginTable("table2", 3, ImGuiTableFlags_Borders | ImGuiTableFlags_RowBg, ImVec2(TEXT_BASE_WIDTH * 30, 0.0f)))
+        {
+            for (int row = 0; row < 5; row++)
+            {
+                ImGui::TableNextRow();
+                for (int column = 0; column < 3; column++)
+                {
+                    ImGui::TableNextColumn();
+                    ImGui::Text("Cell %d,%d", column, row);
+                }
+            }
+            ImGui::EndTable();
+        }
+        ImGui::SameLine();
+        if (ImGui::BeginTable("table3", 3, ImGuiTableFlags_Borders | ImGuiTableFlags_RowBg, ImVec2(TEXT_BASE_WIDTH * 30, 0.0f)))
+        {
+            for (int row = 0; row < 3; row++)
+            {
+                ImGui::TableNextRow(0, TEXT_BASE_HEIGHT * 1.5f);
+                for (int column = 0; column < 3; column++)
+                {
+                    ImGui::TableNextColumn();
+                    ImGui::Text("Cell %d,%d", column, row);
+                }
+            }
+            ImGui::EndTable();
+        }
+
+        ImGui::TreePop();
+    }
+
+    if (open_action != -1)
+        ImGui::SetNextItemOpen(open_action != 0);
+    IMGUI_DEMO_MARKER("Tables/Background color");
+    if (ImGui::TreeNode("Background color"))
+    {
+        static ImGuiTableFlags flags = ImGuiTableFlags_RowBg;
+        static int row_bg_type = 1;
+        static int row_bg_target = 1;
+        static int cell_bg_type = 1;
+
+        PushStyleCompact();
+        ImGui::CheckboxFlags("ImGuiTableFlags_Borders", &flags, ImGuiTableFlags_Borders);
+        ImGui::CheckboxFlags("ImGuiTableFlags_RowBg", &flags, ImGuiTableFlags_RowBg);
+        ImGui::SameLine(); HelpMarker("ImGuiTableFlags_RowBg automatically sets RowBg0 to alternative colors pulled from the Style.");
+        ImGui::Combo("row bg type", (int*)&row_bg_type, "None\0Red\0Gradient\0");
+        ImGui::Combo("row bg target", (int*)&row_bg_target, "RowBg0\0RowBg1\0"); ImGui::SameLine(); HelpMarker("Target RowBg0 to override the alternating odd/even colors,\nTarget RowBg1 to blend with them.");
+        ImGui::Combo("cell bg type", (int*)&cell_bg_type, "None\0Blue\0"); ImGui::SameLine(); HelpMarker("We are colorizing cells to B1->C2 here.");
+        IM_ASSERT(row_bg_type >= 0 && row_bg_type <= 2);
+        IM_ASSERT(row_bg_target >= 0 && row_bg_target <= 1);
+        IM_ASSERT(cell_bg_type >= 0 && cell_bg_type <= 1);
+        PopStyleCompact();
+
+        if (ImGui::BeginTable("table1", 5, flags))
+        {
+            for (int row = 0; row < 6; row++)
+            {
+                ImGui::TableNextRow();
+
+                // Demonstrate setting a row background color with 'ImGui::TableSetBgColor(ImGuiTableBgTarget_RowBgX, ...)'
+                // We use a transparent color so we can see the one behind in case our target is RowBg1 and RowBg0 was already targeted by the ImGuiTableFlags_RowBg flag.
+                if (row_bg_type != 0)
+                {
+                    ImU32 row_bg_color = ImGui::GetColorU32(row_bg_type == 1 ? ImVec4(0.7f, 0.3f, 0.3f, 0.65f) : ImVec4(0.2f + row * 0.1f, 0.2f, 0.2f, 0.65f)); // Flat or Gradient?
+                    ImGui::TableSetBgColor(ImGuiTableBgTarget_RowBg0 + row_bg_target, row_bg_color);
+                }
+
+                // Fill cells
+                for (int column = 0; column < 5; column++)
+                {
+                    ImGui::TableSetColumnIndex(column);
+                    ImGui::Text("%c%c", 'A' + row, '0' + column);
+
+                    // Change background of Cells B1->C2
+                    // Demonstrate setting a cell background color with 'ImGui::TableSetBgColor(ImGuiTableBgTarget_CellBg, ...)'
+                    // (the CellBg color will be blended over the RowBg and ColumnBg colors)
+                    // We can also pass a column number as a third parameter to TableSetBgColor() and do this outside the column loop.
+                    if (row >= 1 && row <= 2 && column >= 1 && column <= 2 && cell_bg_type == 1)
+                    {
+                        ImU32 cell_bg_color = ImGui::GetColorU32(ImVec4(0.3f, 0.3f, 0.7f, 0.65f));
+                        ImGui::TableSetBgColor(ImGuiTableBgTarget_CellBg, cell_bg_color);
+                    }
+                }
+            }
+            ImGui::EndTable();
+        }
+        ImGui::TreePop();
+    }
+
+    if (open_action != -1)
+        ImGui::SetNextItemOpen(open_action != 0);
+    IMGUI_DEMO_MARKER("Tables/Tree view");
+    if (ImGui::TreeNode("Tree view"))
+    {
+        static ImGuiTableFlags flags = ImGuiTableFlags_BordersV | ImGuiTableFlags_BordersOuterH | ImGuiTableFlags_Resizable | ImGuiTableFlags_RowBg | ImGuiTableFlags_NoBordersInBody;
+
+        if (ImGui::BeginTable("3ways", 3, flags))
+        {
+            // The first column will use the default _WidthStretch when ScrollX is Off and _WidthFixed when ScrollX is On
+            ImGui::TableSetupColumn("Name", ImGuiTableColumnFlags_NoHide);
+            ImGui::TableSetupColumn("Size", ImGuiTableColumnFlags_WidthFixed, TEXT_BASE_WIDTH * 12.0f);
+            ImGui::TableSetupColumn("Type", ImGuiTableColumnFlags_WidthFixed, TEXT_BASE_WIDTH * 18.0f);
+            ImGui::TableHeadersRow();
+
+            // Simple storage to output a dummy file-system.
+            struct MyTreeNode
+            {
+                const char*     Name;
+                const char*     Type;
+                int             Size;
+                int             ChildIdx;
+                int             ChildCount;
+                static void DisplayNode(const MyTreeNode* node, const MyTreeNode* all_nodes)
+                {
+                    ImGui::TableNextRow();
+                    ImGui::TableNextColumn();
+                    const bool is_folder = (node->ChildCount > 0);
+                    if (is_folder)
+                    {
+                        bool open = ImGui::TreeNodeEx(node->Name, ImGuiTreeNodeFlags_SpanFullWidth);
+                        ImGui::TableNextColumn();
+                        ImGui::TextDisabled("--");
+                        ImGui::TableNextColumn();
+                        ImGui::TextUnformatted(node->Type);
+                        if (open)
+                        {
+                            for (int child_n = 0; child_n < node->ChildCount; child_n++)
+                                DisplayNode(&all_nodes[node->ChildIdx + child_n], all_nodes);
+                            ImGui::TreePop();
+                        }
+                    }
+                    else
+                    {
+                        ImGui::TreeNodeEx(node->Name, ImGuiTreeNodeFlags_Leaf | ImGuiTreeNodeFlags_Bullet | ImGuiTreeNodeFlags_NoTreePushOnOpen | ImGuiTreeNodeFlags_SpanFullWidth);
+                        ImGui::TableNextColumn();
+                        ImGui::Text("%d", node->Size);
+                        ImGui::TableNextColumn();
+                        ImGui::TextUnformatted(node->Type);
+                    }
+                }
+            };
+            static const MyTreeNode nodes[] =
+            {
+                { "Root",                         "Folder",       -1,       1, 3    }, // 0
+                { "Music",                        "Folder",       -1,       4, 2    }, // 1
+                { "Textures",                     "Folder",       -1,       6, 3    }, // 2
+                { "desktop.ini",                  "System file",  1024,    -1,-1    }, // 3
+                { "File1_a.wav",                  "Audio file",   123000,  -1,-1    }, // 4
+                { "File1_b.wav",                  "Audio file",   456000,  -1,-1    }, // 5
+                { "Image001.png",                 "Image file",   203128,  -1,-1    }, // 6
+                { "Copy of Image001.png",         "Image file",   203256,  -1,-1    }, // 7
+                { "Copy of Image001 (Final2).png","Image file",   203512,  -1,-1    }, // 8
+            };
+
+            MyTreeNode::DisplayNode(&nodes[0], nodes);
+
+            ImGui::EndTable();
+        }
+        ImGui::TreePop();
+    }
+
+    if (open_action != -1)
+        ImGui::SetNextItemOpen(open_action != 0);
+    IMGUI_DEMO_MARKER("Tables/Item width");
+    if (ImGui::TreeNode("Item width"))
+    {
+        HelpMarker(
+            "Showcase using PushItemWidth() and how it is preserved on a per-column basis.\n\n"
+            "Note that on auto-resizing non-resizable fixed columns, querying the content width for e.g. right-alignment doesn't make sense.");
+        if (ImGui::BeginTable("table_item_width", 3, ImGuiTableFlags_Borders))
+        {
+            ImGui::TableSetupColumn("small");
+            ImGui::TableSetupColumn("half");
+            ImGui::TableSetupColumn("right-align");
+            ImGui::TableHeadersRow();
+
+            for (int row = 0; row < 3; row++)
+            {
+                ImGui::TableNextRow();
+                if (row == 0)
+                {
+                    // Setup ItemWidth once (instead of setting up every time, which is also possible but less efficient)
+                    ImGui::TableSetColumnIndex(0);
+                    ImGui::PushItemWidth(TEXT_BASE_WIDTH * 3.0f); // Small
+                    ImGui::TableSetColumnIndex(1);
+                    ImGui::PushItemWidth(-ImGui::GetContentRegionAvail().x * 0.5f);
+                    ImGui::TableSetColumnIndex(2);
+                    ImGui::PushItemWidth(-FLT_MIN); // Right-aligned
+                }
+
+                // Draw our contents
+                static float dummy_f = 0.0f;
+                ImGui::PushID(row);
+                ImGui::TableSetColumnIndex(0);
+                ImGui::SliderFloat("float0", &dummy_f, 0.0f, 1.0f);
+                ImGui::TableSetColumnIndex(1);
+                ImGui::SliderFloat("float1", &dummy_f, 0.0f, 1.0f);
+                ImGui::TableSetColumnIndex(2);
+                ImGui::SliderFloat("##float2", &dummy_f, 0.0f, 1.0f); // No visible label since right-aligned
+                ImGui::PopID();
+            }
+            ImGui::EndTable();
+        }
+        ImGui::TreePop();
+    }
+
+    // Demonstrate using TableHeader() calls instead of TableHeadersRow()
+    if (open_action != -1)
+        ImGui::SetNextItemOpen(open_action != 0);
+    IMGUI_DEMO_MARKER("Tables/Custom headers");
+    if (ImGui::TreeNode("Custom headers"))
+    {
+        const int COLUMNS_COUNT = 3;
+        if (ImGui::BeginTable("table_custom_headers", COLUMNS_COUNT, ImGuiTableFlags_Borders | ImGuiTableFlags_Reorderable | ImGuiTableFlags_Hideable))
+        {
+            ImGui::TableSetupColumn("Apricot");
+            ImGui::TableSetupColumn("Banana");
+            ImGui::TableSetupColumn("Cherry");
+
+            // Dummy entire-column selection storage
+            // FIXME: It would be nice to actually demonstrate full-featured selection using those checkbox.
+            static bool column_selected[3] = {};
+
+            // Instead of calling TableHeadersRow() we'll submit custom headers ourselves
+            ImGui::TableNextRow(ImGuiTableRowFlags_Headers);
+            for (int column = 0; column < COLUMNS_COUNT; column++)
+            {
+                ImGui::TableSetColumnIndex(column);
+                const char* column_name = ImGui::TableGetColumnName(column); // Retrieve name passed to TableSetupColumn()
+                ImGui::PushID(column);
+                ImGui::PushStyleVar(ImGuiStyleVar_FramePadding, ImVec2(0, 0));
+                ImGui::Checkbox("##checkall", &column_selected[column]);
+                ImGui::PopStyleVar();
+                ImGui::SameLine(0.0f, ImGui::GetStyle().ItemInnerSpacing.x);
+                ImGui::TableHeader(column_name);
+                ImGui::PopID();
+            }
+
+            for (int row = 0; row < 5; row++)
+            {
+                ImGui::TableNextRow();
+                for (int column = 0; column < 3; column++)
+                {
+                    char buf[32];
+                    sprintf(buf, "Cell %d,%d", column, row);
+                    ImGui::TableSetColumnIndex(column);
+                    ImGui::Selectable(buf, column_selected[column]);
+                }
+            }
+            ImGui::EndTable();
+        }
+        ImGui::TreePop();
+    }
+
+    // Demonstrate creating custom context menus inside columns, while playing it nice with context menus provided by TableHeadersRow()/TableHeader()
+    if (open_action != -1)
+        ImGui::SetNextItemOpen(open_action != 0);
+    IMGUI_DEMO_MARKER("Tables/Context menus");
+    if (ImGui::TreeNode("Context menus"))
+    {
+        HelpMarker("By default, right-clicking over a TableHeadersRow()/TableHeader() line will open the default context-menu.\nUsing ImGuiTableFlags_ContextMenuInBody we also allow right-clicking over columns body.");
+        static ImGuiTableFlags flags1 = ImGuiTableFlags_Resizable | ImGuiTableFlags_Reorderable | ImGuiTableFlags_Hideable | ImGuiTableFlags_Borders | ImGuiTableFlags_ContextMenuInBody;
+
+        PushStyleCompact();
+        ImGui::CheckboxFlags("ImGuiTableFlags_ContextMenuInBody", &flags1, ImGuiTableFlags_ContextMenuInBody);
+        PopStyleCompact();
+
+        // Context Menus: first example
+        // [1.1] Right-click on the TableHeadersRow() line to open the default table context menu.
+        // [1.2] Right-click in columns also open the default table context menu (if ImGuiTableFlags_ContextMenuInBody is set)
+        const int COLUMNS_COUNT = 3;
+        if (ImGui::BeginTable("table_context_menu", COLUMNS_COUNT, flags1))
+        {
+            ImGui::TableSetupColumn("One");
+            ImGui::TableSetupColumn("Two");
+            ImGui::TableSetupColumn("Three");
+
+            // [1.1]] Right-click on the TableHeadersRow() line to open the default table context menu.
+            ImGui::TableHeadersRow();
+
+            // Submit dummy contents
+            for (int row = 0; row < 4; row++)
+            {
+                ImGui::TableNextRow();
+                for (int column = 0; column < COLUMNS_COUNT; column++)
+                {
+                    ImGui::TableSetColumnIndex(column);
+                    ImGui::Text("Cell %d,%d", column, row);
+                }
+            }
+            ImGui::EndTable();
+        }
+
+        // Context Menus: second example
+        // [2.1] Right-click on the TableHeadersRow() line to open the default table context menu.
+        // [2.2] Right-click on the ".." to open a custom popup
+        // [2.3] Right-click in columns to open another custom popup
+        HelpMarker("Demonstrate mixing table context menu (over header), item context button (over button) and custom per-colum context menu (over column body).");
+        ImGuiTableFlags flags2 = ImGuiTableFlags_Resizable | ImGuiTableFlags_SizingFixedFit | ImGuiTableFlags_Reorderable | ImGuiTableFlags_Hideable | ImGuiTableFlags_Borders;
+        if (ImGui::BeginTable("table_context_menu_2", COLUMNS_COUNT, flags2))
+        {
+            ImGui::TableSetupColumn("One");
+            ImGui::TableSetupColumn("Two");
+            ImGui::TableSetupColumn("Three");
+
+            // [2.1] Right-click on the TableHeadersRow() line to open the default table context menu.
+            ImGui::TableHeadersRow();
+            for (int row = 0; row < 4; row++)
+            {
+                ImGui::TableNextRow();
+                for (int column = 0; column < COLUMNS_COUNT; column++)
+                {
+                    // Submit dummy contents
+                    ImGui::TableSetColumnIndex(column);
+                    ImGui::Text("Cell %d,%d", column, row);
+                    ImGui::SameLine();
+
+                    // [2.2] Right-click on the ".." to open a custom popup
+                    ImGui::PushID(row * COLUMNS_COUNT + column);
+                    ImGui::SmallButton("..");
+                    if (ImGui::BeginPopupContextItem())
+                    {
+                        ImGui::Text("This is the popup for Button(\"..\") in Cell %d,%d", column, row);
+                        if (ImGui::Button("Close"))
+                            ImGui::CloseCurrentPopup();
+                        ImGui::EndPopup();
+                    }
+                    ImGui::PopID();
+                }
+            }
+
+            // [2.3] Right-click anywhere in columns to open another custom popup
+            // (instead of testing for !IsAnyItemHovered() we could also call OpenPopup() with ImGuiPopupFlags_NoOpenOverExistingPopup
+            // to manage popup priority as the popups triggers, here "are we hovering a column" are overlapping)
+            int hovered_column = -1;
+            for (int column = 0; column < COLUMNS_COUNT + 1; column++)
+            {
+                ImGui::PushID(column);
+                if (ImGui::TableGetColumnFlags(column) & ImGuiTableColumnFlags_IsHovered)
+                    hovered_column = column;
+                if (hovered_column == column && !ImGui::IsAnyItemHovered() && ImGui::IsMouseReleased(1))
+                    ImGui::OpenPopup("MyPopup");
+                if (ImGui::BeginPopup("MyPopup"))
+                {
+                    if (column == COLUMNS_COUNT)
+                        ImGui::Text("This is a custom popup for unused space after the last column.");
+                    else
+                        ImGui::Text("This is a custom popup for Column %d", column);
+                    if (ImGui::Button("Close"))
+                        ImGui::CloseCurrentPopup();
+                    ImGui::EndPopup();
+                }
+                ImGui::PopID();
+            }
+
+            ImGui::EndTable();
+            ImGui::Text("Hovered column: %d", hovered_column);
+        }
+        ImGui::TreePop();
+    }
+
+    // Demonstrate creating multiple tables with the same ID
+    if (open_action != -1)
+        ImGui::SetNextItemOpen(open_action != 0);
+    IMGUI_DEMO_MARKER("Tables/Synced instances");
+    if (ImGui::TreeNode("Synced instances"))
+    {
+        HelpMarker("Multiple tables with the same identifier will share their settings, width, visibility, order etc.");
+        for (int n = 0; n < 3; n++)
+        {
+            char buf[32];
+            sprintf(buf, "Synced Table %d", n);
+            bool open = ImGui::CollapsingHeader(buf, ImGuiTreeNodeFlags_DefaultOpen);
+            if (open && ImGui::BeginTable("Table", 3, ImGuiTableFlags_Resizable | ImGuiTableFlags_Reorderable | ImGuiTableFlags_Hideable | ImGuiTableFlags_Borders | ImGuiTableFlags_SizingFixedFit | ImGuiTableFlags_NoSavedSettings))
+            {
+                ImGui::TableSetupColumn("One");
+                ImGui::TableSetupColumn("Two");
+                ImGui::TableSetupColumn("Three");
+                ImGui::TableHeadersRow();
+                for (int cell = 0; cell < 9; cell++)
+                {
+                    ImGui::TableNextColumn();
+                    ImGui::Text("this cell %d", cell);
+                }
+                ImGui::EndTable();
+            }
+        }
+        ImGui::TreePop();
+    }
+
+    // Demonstrate using Sorting facilities
+    // This is a simplified version of the "Advanced" example, where we mostly focus on the code necessary to handle sorting.
+    // Note that the "Advanced" example also showcase manually triggering a sort (e.g. if item quantities have been modified)
+    static const char* template_items_names[] =
+    {
+        "Banana", "Apple", "Cherry", "Watermelon", "Grapefruit", "Strawberry", "Mango",
+        "Kiwi", "Orange", "Pineapple", "Blueberry", "Plum", "Coconut", "Pear", "Apricot"
+    };
+    if (open_action != -1)
+        ImGui::SetNextItemOpen(open_action != 0);
+    IMGUI_DEMO_MARKER("Tables/Sorting");
+    if (ImGui::TreeNode("Sorting"))
+    {
+        // Create item list
+        static ImVector<MyItem> items;
+        if (items.Size == 0)
+        {
+            items.resize(50, MyItem());
+            for (int n = 0; n < items.Size; n++)
+            {
+                const int template_n = n % IM_ARRAYSIZE(template_items_names);
+                MyItem& item = items[n];
+                item.ID = n;
+                item.Name = template_items_names[template_n];
+                item.Quantity = (n * n - n) % 20; // Assign default quantities
+            }
+        }
+
+        // Options
+        static ImGuiTableFlags flags =
+            ImGuiTableFlags_Resizable | ImGuiTableFlags_Reorderable | ImGuiTableFlags_Hideable | ImGuiTableFlags_Sortable | ImGuiTableFlags_SortMulti
+            | ImGuiTableFlags_RowBg | ImGuiTableFlags_BordersOuter | ImGuiTableFlags_BordersV | ImGuiTableFlags_NoBordersInBody
+            | ImGuiTableFlags_ScrollY;
+        PushStyleCompact();
+        ImGui::CheckboxFlags("ImGuiTableFlags_SortMulti", &flags, ImGuiTableFlags_SortMulti);
+        ImGui::SameLine(); HelpMarker("When sorting is enabled: hold shift when clicking headers to sort on multiple column. TableGetSortSpecs() may return specs where (SpecsCount > 1).");
+        ImGui::CheckboxFlags("ImGuiTableFlags_SortTristate", &flags, ImGuiTableFlags_SortTristate);
+        ImGui::SameLine(); HelpMarker("When sorting is enabled: allow no sorting, disable default sorting. TableGetSortSpecs() may return specs where (SpecsCount == 0).");
+        PopStyleCompact();
+
+        if (ImGui::BeginTable("table_sorting", 4, flags, ImVec2(0.0f, TEXT_BASE_HEIGHT * 15), 0.0f))
+        {
+            // Declare columns
+            // We use the "user_id" parameter of TableSetupColumn() to specify a user id that will be stored in the sort specifications.
+            // This is so our sort function can identify a column given our own identifier. We could also identify them based on their index!
+            // Demonstrate using a mixture of flags among available sort-related flags:
+            // - ImGuiTableColumnFlags_DefaultSort
+            // - ImGuiTableColumnFlags_NoSort / ImGuiTableColumnFlags_NoSortAscending / ImGuiTableColumnFlags_NoSortDescending
+            // - ImGuiTableColumnFlags_PreferSortAscending / ImGuiTableColumnFlags_PreferSortDescending
+            ImGui::TableSetupColumn("ID",       ImGuiTableColumnFlags_DefaultSort          | ImGuiTableColumnFlags_WidthFixed,   0.0f, MyItemColumnID_ID);
+            ImGui::TableSetupColumn("Name",                                                  ImGuiTableColumnFlags_WidthFixed,   0.0f, MyItemColumnID_Name);
+            ImGui::TableSetupColumn("Action",   ImGuiTableColumnFlags_NoSort               | ImGuiTableColumnFlags_WidthFixed,   0.0f, MyItemColumnID_Action);
+            ImGui::TableSetupColumn("Quantity", ImGuiTableColumnFlags_PreferSortDescending | ImGuiTableColumnFlags_WidthStretch, 0.0f, MyItemColumnID_Quantity);
+            ImGui::TableSetupScrollFreeze(0, 1); // Make row always visible
+            ImGui::TableHeadersRow();
+
+            // Sort our data if sort specs have been changed!
+            if (ImGuiTableSortSpecs* sorts_specs = ImGui::TableGetSortSpecs())
+                if (sorts_specs->SpecsDirty)
+                {
+                    MyItem::s_current_sort_specs = sorts_specs; // Store in variable accessible by the sort function.
+                    if (items.Size > 1)
+                        qsort(&items[0], (size_t)items.Size, sizeof(items[0]), MyItem::CompareWithSortSpecs);
+                    MyItem::s_current_sort_specs = NULL;
+                    sorts_specs->SpecsDirty = false;
+                }
+
+            // Demonstrate using clipper for large vertical lists
+            ImGuiListClipper clipper;
+            clipper.Begin(items.Size);
+            while (clipper.Step())
+                for (int row_n = clipper.DisplayStart; row_n < clipper.DisplayEnd; row_n++)
+                {
+                    // Display a data item
+                    MyItem* item = &items[row_n];
+                    ImGui::PushID(item->ID);
+                    ImGui::TableNextRow();
+                    ImGui::TableNextColumn();
+                    ImGui::Text("%04d", item->ID);
+                    ImGui::TableNextColumn();
+                    ImGui::TextUnformatted(item->Name);
+                    ImGui::TableNextColumn();
+                    ImGui::SmallButton("None");
+                    ImGui::TableNextColumn();
+                    ImGui::Text("%d", item->Quantity);
+                    ImGui::PopID();
+                }
+            ImGui::EndTable();
+        }
+        ImGui::TreePop();
+    }
+
+    // In this example we'll expose most table flags and settings.
+    // For specific flags and settings refer to the corresponding section for more detailed explanation.
+    // This section is mostly useful to experiment with combining certain flags or settings with each others.
+    //ImGui::SetNextItemOpen(true, ImGuiCond_Once); // [DEBUG]
+    if (open_action != -1)
+        ImGui::SetNextItemOpen(open_action != 0);
+    IMGUI_DEMO_MARKER("Tables/Advanced");
+    if (ImGui::TreeNode("Advanced"))
+    {
+        static ImGuiTableFlags flags =
+            ImGuiTableFlags_Resizable | ImGuiTableFlags_Reorderable | ImGuiTableFlags_Hideable
+            | ImGuiTableFlags_Sortable | ImGuiTableFlags_SortMulti
+            | ImGuiTableFlags_RowBg | ImGuiTableFlags_Borders | ImGuiTableFlags_NoBordersInBody
+            | ImGuiTableFlags_ScrollX | ImGuiTableFlags_ScrollY
+            | ImGuiTableFlags_SizingFixedFit;
+
+        enum ContentsType { CT_Text, CT_Button, CT_SmallButton, CT_FillButton, CT_Selectable, CT_SelectableSpanRow };
+        static int contents_type = CT_SelectableSpanRow;
+        const char* contents_type_names[] = { "Text", "Button", "SmallButton", "FillButton", "Selectable", "Selectable (span row)" };
+        static int freeze_cols = 1;
+        static int freeze_rows = 1;
+        static int items_count = IM_ARRAYSIZE(template_items_names) * 2;
+        static ImVec2 outer_size_value = ImVec2(0.0f, TEXT_BASE_HEIGHT * 12);
+        static float row_min_height = 0.0f; // Auto
+        static float inner_width_with_scroll = 0.0f; // Auto-extend
+        static bool outer_size_enabled = true;
+        static bool show_headers = true;
+        static bool show_wrapped_text = false;
+        //static ImGuiTextFilter filter;
+        //ImGui::SetNextItemOpen(true, ImGuiCond_Once); // FIXME-TABLE: Enabling this results in initial clipped first pass on table which tend to affects column sizing
+        if (ImGui::TreeNode("Options"))
+        {
+            // Make the UI compact because there are so many fields
+            PushStyleCompact();
+            ImGui::PushItemWidth(TEXT_BASE_WIDTH * 28.0f);
+
+            if (ImGui::TreeNodeEx("Features:", ImGuiTreeNodeFlags_DefaultOpen))
+            {
+                ImGui::CheckboxFlags("ImGuiTableFlags_Resizable", &flags, ImGuiTableFlags_Resizable);
+                ImGui::CheckboxFlags("ImGuiTableFlags_Reorderable", &flags, ImGuiTableFlags_Reorderable);
+                ImGui::CheckboxFlags("ImGuiTableFlags_Hideable", &flags, ImGuiTableFlags_Hideable);
+                ImGui::CheckboxFlags("ImGuiTableFlags_Sortable", &flags, ImGuiTableFlags_Sortable);
+                ImGui::CheckboxFlags("ImGuiTableFlags_NoSavedSettings", &flags, ImGuiTableFlags_NoSavedSettings);
+                ImGui::CheckboxFlags("ImGuiTableFlags_ContextMenuInBody", &flags, ImGuiTableFlags_ContextMenuInBody);
+                ImGui::TreePop();
+            }
+
+            if (ImGui::TreeNodeEx("Decorations:", ImGuiTreeNodeFlags_DefaultOpen))
+            {
+                ImGui::CheckboxFlags("ImGuiTableFlags_RowBg", &flags, ImGuiTableFlags_RowBg);
+                ImGui::CheckboxFlags("ImGuiTableFlags_BordersV", &flags, ImGuiTableFlags_BordersV);
+                ImGui::CheckboxFlags("ImGuiTableFlags_BordersOuterV", &flags, ImGuiTableFlags_BordersOuterV);
+                ImGui::CheckboxFlags("ImGuiTableFlags_BordersInnerV", &flags, ImGuiTableFlags_BordersInnerV);
+                ImGui::CheckboxFlags("ImGuiTableFlags_BordersH", &flags, ImGuiTableFlags_BordersH);
+                ImGui::CheckboxFlags("ImGuiTableFlags_BordersOuterH", &flags, ImGuiTableFlags_BordersOuterH);
+                ImGui::CheckboxFlags("ImGuiTableFlags_BordersInnerH", &flags, ImGuiTableFlags_BordersInnerH);
+                ImGui::CheckboxFlags("ImGuiTableFlags_NoBordersInBody", &flags, ImGuiTableFlags_NoBordersInBody); ImGui::SameLine(); HelpMarker("Disable vertical borders in columns Body (borders will always appears in Headers");
+                ImGui::CheckboxFlags("ImGuiTableFlags_NoBordersInBodyUntilResize", &flags, ImGuiTableFlags_NoBordersInBodyUntilResize); ImGui::SameLine(); HelpMarker("Disable vertical borders in columns Body until hovered for resize (borders will always appears in Headers)");
+                ImGui::TreePop();
+            }
+
+            if (ImGui::TreeNodeEx("Sizing:", ImGuiTreeNodeFlags_DefaultOpen))
+            {
+                EditTableSizingFlags(&flags);
+                ImGui::SameLine(); HelpMarker("In the Advanced demo we override the policy of each column so those table-wide settings have less effect that typical.");
+                ImGui::CheckboxFlags("ImGuiTableFlags_NoHostExtendX", &flags, ImGuiTableFlags_NoHostExtendX);
+                ImGui::SameLine(); HelpMarker("Make outer width auto-fit to columns, overriding outer_size.x value.\n\nOnly available when ScrollX/ScrollY are disabled and Stretch columns are not used.");
+                ImGui::CheckboxFlags("ImGuiTableFlags_NoHostExtendY", &flags, ImGuiTableFlags_NoHostExtendY);
+                ImGui::SameLine(); HelpMarker("Make outer height stop exactly at outer_size.y (prevent auto-extending table past the limit).\n\nOnly available when ScrollX/ScrollY are disabled. Data below the limit will be clipped and not visible.");
+                ImGui::CheckboxFlags("ImGuiTableFlags_NoKeepColumnsVisible", &flags, ImGuiTableFlags_NoKeepColumnsVisible);
+                ImGui::SameLine(); HelpMarker("Only available if ScrollX is disabled.");
+                ImGui::CheckboxFlags("ImGuiTableFlags_PreciseWidths", &flags, ImGuiTableFlags_PreciseWidths);
+                ImGui::SameLine(); HelpMarker("Disable distributing remainder width to stretched columns (width allocation on a 100-wide table with 3 columns: Without this flag: 33,33,34. With this flag: 33,33,33). With larger number of columns, resizing will appear to be less smooth.");
+                ImGui::CheckboxFlags("ImGuiTableFlags_NoClip", &flags, ImGuiTableFlags_NoClip);
+                ImGui::SameLine(); HelpMarker("Disable clipping rectangle for every individual columns (reduce draw command count, items will be able to overflow into other columns). Generally incompatible with ScrollFreeze options.");
+                ImGui::TreePop();
+            }
+
+            if (ImGui::TreeNodeEx("Padding:", ImGuiTreeNodeFlags_DefaultOpen))
+            {
+                ImGui::CheckboxFlags("ImGuiTableFlags_PadOuterX", &flags, ImGuiTableFlags_PadOuterX);
+                ImGui::CheckboxFlags("ImGuiTableFlags_NoPadOuterX", &flags, ImGuiTableFlags_NoPadOuterX);
+                ImGui::CheckboxFlags("ImGuiTableFlags_NoPadInnerX", &flags, ImGuiTableFlags_NoPadInnerX);
+                ImGui::TreePop();
+            }
+
+            if (ImGui::TreeNodeEx("Scrolling:", ImGuiTreeNodeFlags_DefaultOpen))
+            {
+                ImGui::CheckboxFlags("ImGuiTableFlags_ScrollX", &flags, ImGuiTableFlags_ScrollX);
+                ImGui::SameLine();
+                ImGui::SetNextItemWidth(ImGui::GetFrameHeight());
+                ImGui::DragInt("freeze_cols", &freeze_cols, 0.2f, 0, 9, NULL, ImGuiSliderFlags_NoInput);
+                ImGui::CheckboxFlags("ImGuiTableFlags_ScrollY", &flags, ImGuiTableFlags_ScrollY);
+                ImGui::SameLine();
+                ImGui::SetNextItemWidth(ImGui::GetFrameHeight());
+                ImGui::DragInt("freeze_rows", &freeze_rows, 0.2f, 0, 9, NULL, ImGuiSliderFlags_NoInput);
+                ImGui::TreePop();
+            }
+
+            if (ImGui::TreeNodeEx("Sorting:", ImGuiTreeNodeFlags_DefaultOpen))
+            {
+                ImGui::CheckboxFlags("ImGuiTableFlags_SortMulti", &flags, ImGuiTableFlags_SortMulti);
+                ImGui::SameLine(); HelpMarker("When sorting is enabled: hold shift when clicking headers to sort on multiple column. TableGetSortSpecs() may return specs where (SpecsCount > 1).");
+                ImGui::CheckboxFlags("ImGuiTableFlags_SortTristate", &flags, ImGuiTableFlags_SortTristate);
+                ImGui::SameLine(); HelpMarker("When sorting is enabled: allow no sorting, disable default sorting. TableGetSortSpecs() may return specs where (SpecsCount == 0).");
+                ImGui::TreePop();
+            }
+
+            if (ImGui::TreeNodeEx("Other:", ImGuiTreeNodeFlags_DefaultOpen))
+            {
+                ImGui::Checkbox("show_headers", &show_headers);
+                ImGui::Checkbox("show_wrapped_text", &show_wrapped_text);
+
+                ImGui::DragFloat2("##OuterSize", &outer_size_value.x);
+                ImGui::SameLine(0.0f, ImGui::GetStyle().ItemInnerSpacing.x);
+                ImGui::Checkbox("outer_size", &outer_size_enabled);
+                ImGui::SameLine();
+                HelpMarker("If scrolling is disabled (ScrollX and ScrollY not set):\n"
+                    "- The table is output directly in the parent window.\n"
+                    "- OuterSize.x < 0.0f will right-align the table.\n"
+                    "- OuterSize.x = 0.0f will narrow fit the table unless there are any Stretch column.\n"
+                    "- OuterSize.y then becomes the minimum size for the table, which will extend vertically if there are more rows (unless NoHostExtendY is set).");
+
+                // From a user point of view we will tend to use 'inner_width' differently depending on whether our table is embedding scrolling.
+                // To facilitate toying with this demo we will actually pass 0.0f to the BeginTable() when ScrollX is disabled.
+                ImGui::DragFloat("inner_width (when ScrollX active)", &inner_width_with_scroll, 1.0f, 0.0f, FLT_MAX);
+
+                ImGui::DragFloat("row_min_height", &row_min_height, 1.0f, 0.0f, FLT_MAX);
+                ImGui::SameLine(); HelpMarker("Specify height of the Selectable item.");
+
+                ImGui::DragInt("items_count", &items_count, 0.1f, 0, 9999);
+                ImGui::Combo("items_type (first column)", &contents_type, contents_type_names, IM_ARRAYSIZE(contents_type_names));
+                //filter.Draw("filter");
+                ImGui::TreePop();
+            }
+
+            ImGui::PopItemWidth();
+            PopStyleCompact();
+            ImGui::Spacing();
+            ImGui::TreePop();
+        }
+
+        // Update item list if we changed the number of items
+        static ImVector<MyItem> items;
+        static ImVector<int> selection;
+        static bool items_need_sort = false;
+        if (items.Size != items_count)
+        {
+            items.resize(items_count, MyItem());
+            for (int n = 0; n < items_count; n++)
+            {
+                const int template_n = n % IM_ARRAYSIZE(template_items_names);
+                MyItem& item = items[n];
+                item.ID = n;
+                item.Name = template_items_names[template_n];
+                item.Quantity = (template_n == 3) ? 10 : (template_n == 4) ? 20 : 0; // Assign default quantities
+            }
+        }
+
+        const ImDrawList* parent_draw_list = ImGui::GetWindowDrawList();
+        const int parent_draw_list_draw_cmd_count = parent_draw_list->CmdBuffer.Size;
+        ImVec2 table_scroll_cur, table_scroll_max; // For debug display
+        const ImDrawList* table_draw_list = NULL;  // "
+
+        // Submit table
+        const float inner_width_to_use = (flags & ImGuiTableFlags_ScrollX) ? inner_width_with_scroll : 0.0f;
+        if (ImGui::BeginTable("table_advanced", 6, flags, outer_size_enabled ? outer_size_value : ImVec2(0, 0), inner_width_to_use))
+        {
+            // Declare columns
+            // We use the "user_id" parameter of TableSetupColumn() to specify a user id that will be stored in the sort specifications.
+            // This is so our sort function can identify a column given our own identifier. We could also identify them based on their index!
+            ImGui::TableSetupColumn("ID",           ImGuiTableColumnFlags_DefaultSort | ImGuiTableColumnFlags_WidthFixed | ImGuiTableColumnFlags_NoHide, 0.0f, MyItemColumnID_ID);
+            ImGui::TableSetupColumn("Name",         ImGuiTableColumnFlags_WidthFixed, 0.0f, MyItemColumnID_Name);
+            ImGui::TableSetupColumn("Action",       ImGuiTableColumnFlags_NoSort | ImGuiTableColumnFlags_WidthFixed, 0.0f, MyItemColumnID_Action);
+            ImGui::TableSetupColumn("Quantity",     ImGuiTableColumnFlags_PreferSortDescending, 0.0f, MyItemColumnID_Quantity);
+            ImGui::TableSetupColumn("Description",  (flags & ImGuiTableFlags_NoHostExtendX) ? 0 : ImGuiTableColumnFlags_WidthStretch, 0.0f, MyItemColumnID_Description);
+            ImGui::TableSetupColumn("Hidden",       ImGuiTableColumnFlags_DefaultHide | ImGuiTableColumnFlags_NoSort);
+            ImGui::TableSetupScrollFreeze(freeze_cols, freeze_rows);
+
+            // Sort our data if sort specs have been changed!
+            ImGuiTableSortSpecs* sorts_specs = ImGui::TableGetSortSpecs();
+            if (sorts_specs && sorts_specs->SpecsDirty)
+                items_need_sort = true;
+            if (sorts_specs && items_need_sort && items.Size > 1)
+            {
+                MyItem::s_current_sort_specs = sorts_specs; // Store in variable accessible by the sort function.
+                qsort(&items[0], (size_t)items.Size, sizeof(items[0]), MyItem::CompareWithSortSpecs);
+                MyItem::s_current_sort_specs = NULL;
+                sorts_specs->SpecsDirty = false;
+            }
+            items_need_sort = false;
+
+            // Take note of whether we are currently sorting based on the Quantity field,
+            // we will use this to trigger sorting when we know the data of this column has been modified.
+            const bool sorts_specs_using_quantity = (ImGui::TableGetColumnFlags(3) & ImGuiTableColumnFlags_IsSorted) != 0;
+
+            // Show headers
+            if (show_headers)
+                ImGui::TableHeadersRow();
+
+            // Show data
+            // FIXME-TABLE FIXME-NAV: How we can get decent up/down even though we have the buttons here?
+            ImGui::PushButtonRepeat(true);
+#if 1
+            // Demonstrate using clipper for large vertical lists
+            ImGuiListClipper clipper;
+            clipper.Begin(items.Size);
+            while (clipper.Step())
+            {
+                for (int row_n = clipper.DisplayStart; row_n < clipper.DisplayEnd; row_n++)
+#else
+            // Without clipper
+            {
+                for (int row_n = 0; row_n < items.Size; row_n++)
+#endif
+                {
+                    MyItem* item = &items[row_n];
+                    //if (!filter.PassFilter(item->Name))
+                    //    continue;
+
+                    const bool item_is_selected = selection.contains(item->ID);
+                    ImGui::PushID(item->ID);
+                    ImGui::TableNextRow(ImGuiTableRowFlags_None, row_min_height);
+
+                    // For the demo purpose we can select among different type of items submitted in the first column
+                    ImGui::TableSetColumnIndex(0);
+                    char label[32];
+                    sprintf(label, "%04d", item->ID);
+                    if (contents_type == CT_Text)
+                        ImGui::TextUnformatted(label);
+                    else if (contents_type == CT_Button)
+                        ImGui::Button(label);
+                    else if (contents_type == CT_SmallButton)
+                        ImGui::SmallButton(label);
+                    else if (contents_type == CT_FillButton)
+                        ImGui::Button(label, ImVec2(-FLT_MIN, 0.0f));
+                    else if (contents_type == CT_Selectable || contents_type == CT_SelectableSpanRow)
+                    {
+                        ImGuiSelectableFlags selectable_flags = (contents_type == CT_SelectableSpanRow) ? ImGuiSelectableFlags_SpanAllColumns | ImGuiSelectableFlags_AllowItemOverlap : ImGuiSelectableFlags_None;
+                        if (ImGui::Selectable(label, item_is_selected, selectable_flags, ImVec2(0, row_min_height)))
+                        {
+                            if (ImGui::GetIO().KeyCtrl)
+                            {
+                                if (item_is_selected)
+                                    selection.find_erase_unsorted(item->ID);
+                                else
+                                    selection.push_back(item->ID);
+                            }
+                            else
+                            {
+                                selection.clear();
+                                selection.push_back(item->ID);
+                            }
+                        }
+                    }
+
+                    if (ImGui::TableSetColumnIndex(1))
+                        ImGui::TextUnformatted(item->Name);
+
+                    // Here we demonstrate marking our data set as needing to be sorted again if we modified a quantity,
+                    // and we are currently sorting on the column showing the Quantity.
+                    // To avoid triggering a sort while holding the button, we only trigger it when the button has been released.
+                    // You will probably need a more advanced system in your code if you want to automatically sort when a specific entry changes.
+                    if (ImGui::TableSetColumnIndex(2))
+                    {
+                        if (ImGui::SmallButton("Chop")) { item->Quantity += 1; }
+                        if (sorts_specs_using_quantity && ImGui::IsItemDeactivated()) { items_need_sort = true; }
+                        ImGui::SameLine();
+                        if (ImGui::SmallButton("Eat")) { item->Quantity -= 1; }
+                        if (sorts_specs_using_quantity && ImGui::IsItemDeactivated()) { items_need_sort = true; }
+                    }
+
+                    if (ImGui::TableSetColumnIndex(3))
+                        ImGui::Text("%d", item->Quantity);
+
+                    ImGui::TableSetColumnIndex(4);
+                    if (show_wrapped_text)
+                        ImGui::TextWrapped("Lorem ipsum dolor sit amet");
+                    else
+                        ImGui::Text("Lorem ipsum dolor sit amet");
+
+                    if (ImGui::TableSetColumnIndex(5))
+                        ImGui::Text("1234");
+
+                    ImGui::PopID();
+                }
+            }
+            ImGui::PopButtonRepeat();
+
+            // Store some info to display debug details below
+            table_scroll_cur = ImVec2(ImGui::GetScrollX(), ImGui::GetScrollY());
+            table_scroll_max = ImVec2(ImGui::GetScrollMaxX(), ImGui::GetScrollMaxY());
+            table_draw_list = ImGui::GetWindowDrawList();
+            ImGui::EndTable();
+        }
+        static bool show_debug_details = false;
+        ImGui::Checkbox("Debug details", &show_debug_details);
+        if (show_debug_details && table_draw_list)
+        {
+            ImGui::SameLine(0.0f, 0.0f);
+            const int table_draw_list_draw_cmd_count = table_draw_list->CmdBuffer.Size;
+            if (table_draw_list == parent_draw_list)
+                ImGui::Text(": DrawCmd: +%d (in same window)",
+                    table_draw_list_draw_cmd_count - parent_draw_list_draw_cmd_count);
+            else
+                ImGui::Text(": DrawCmd: +%d (in child window), Scroll: (%.f/%.f) (%.f/%.f)",
+                    table_draw_list_draw_cmd_count - 1, table_scroll_cur.x, table_scroll_max.x, table_scroll_cur.y, table_scroll_max.y);
+        }
+        ImGui::TreePop();
+    }
+
+    ImGui::PopID();
+
+    ShowDemoWindowColumns();
+
+    if (disable_indent)
+        ImGui::PopStyleVar();
+}
+
+// Demonstrate old/legacy Columns API!
+// [2020: Columns are under-featured and not maintained. Prefer using the more flexible and powerful BeginTable() API!]
+static void ShowDemoWindowColumns()
+{
+    IMGUI_DEMO_MARKER("Columns (legacy API)");
+    bool open = ImGui::TreeNode("Legacy Columns API");
+    ImGui::SameLine();
+    HelpMarker("Columns() is an old API! Prefer using the more flexible and powerful BeginTable() API!");
+    if (!open)
+        return;
+
+    // Basic columns
+    IMGUI_DEMO_MARKER("Columns (legacy API)/Basic");
+    if (ImGui::TreeNode("Basic"))
+    {
+        ImGui::Text("Without border:");
+        ImGui::Columns(3, "mycolumns3", false);  // 3-ways, no border
+        ImGui::Separator();
+        for (int n = 0; n < 14; n++)
+        {
+            char label[32];
+            sprintf(label, "Item %d", n);
+            if (ImGui::Selectable(label)) {}
+            //if (ImGui::Button(label, ImVec2(-FLT_MIN,0.0f))) {}
+            ImGui::NextColumn();
+        }
+        ImGui::Columns(1);
+        ImGui::Separator();
+
+        ImGui::Text("With border:");
+        ImGui::Columns(4, "mycolumns"); // 4-ways, with border
+        ImGui::Separator();
+        ImGui::Text("ID"); ImGui::NextColumn();
+        ImGui::Text("Name"); ImGui::NextColumn();
+        ImGui::Text("Path"); ImGui::NextColumn();
+        ImGui::Text("Hovered"); ImGui::NextColumn();
+        ImGui::Separator();
+        const char* names[3] = { "One", "Two", "Three" };
+        const char* paths[3] = { "/path/one", "/path/two", "/path/three" };
+        static int selected = -1;
+        for (int i = 0; i < 3; i++)
+        {
+            char label[32];
+            sprintf(label, "%04d", i);
+            if (ImGui::Selectable(label, selected == i, ImGuiSelectableFlags_SpanAllColumns))
+                selected = i;
+            bool hovered = ImGui::IsItemHovered();
+            ImGui::NextColumn();
+            ImGui::Text(names[i]); ImGui::NextColumn();
+            ImGui::Text(paths[i]); ImGui::NextColumn();
+            ImGui::Text("%d", hovered); ImGui::NextColumn();
+        }
+        ImGui::Columns(1);
+        ImGui::Separator();
+        ImGui::TreePop();
+    }
+
+    IMGUI_DEMO_MARKER("Columns (legacy API)/Borders");
+    if (ImGui::TreeNode("Borders"))
+    {
+        // NB: Future columns API should allow automatic horizontal borders.
+        static bool h_borders = true;
+        static bool v_borders = true;
+        static int columns_count = 4;
+        const int lines_count = 3;
+        ImGui::SetNextItemWidth(ImGui::GetFontSize() * 8);
+        ImGui::DragInt("##columns_count", &columns_count, 0.1f, 2, 10, "%d columns");
+        if (columns_count < 2)
+            columns_count = 2;
+        ImGui::SameLine();
+        ImGui::Checkbox("horizontal", &h_borders);
+        ImGui::SameLine();
+        ImGui::Checkbox("vertical", &v_borders);
+        ImGui::Columns(columns_count, NULL, v_borders);
+        for (int i = 0; i < columns_count * lines_count; i++)
+        {
+            if (h_borders && ImGui::GetColumnIndex() == 0)
+                ImGui::Separator();
+            ImGui::Text("%c%c%c", 'a' + i, 'a' + i, 'a' + i);
+            ImGui::Text("Width %.2f", ImGui::GetColumnWidth());
+            ImGui::Text("Avail %.2f", ImGui::GetContentRegionAvail().x);
+            ImGui::Text("Offset %.2f", ImGui::GetColumnOffset());
+            ImGui::Text("Long text that is likely to clip");
+            ImGui::Button("Button", ImVec2(-FLT_MIN, 0.0f));
+            ImGui::NextColumn();
+        }
+        ImGui::Columns(1);
+        if (h_borders)
+            ImGui::Separator();
+        ImGui::TreePop();
+    }
+
+    // Create multiple items in a same cell before switching to next column
+    IMGUI_DEMO_MARKER("Columns (legacy API)/Mixed items");
+    if (ImGui::TreeNode("Mixed items"))
+    {
+        ImGui::Columns(3, "mixed");
+        ImGui::Separator();
+
+        ImGui::Text("Hello");
+        ImGui::Button("Banana");
+        ImGui::NextColumn();
+
+        ImGui::Text("ImGui");
+        ImGui::Button("Apple");
+        static float foo = 1.0f;
+        ImGui::InputFloat("red", &foo, 0.05f, 0, "%.3f");
+        ImGui::Text("An extra line here.");
+        ImGui::NextColumn();
+
+        ImGui::Text("Sailor");
+        ImGui::Button("Corniflower");
+        static float bar = 1.0f;
+        ImGui::InputFloat("blue", &bar, 0.05f, 0, "%.3f");
+        ImGui::NextColumn();
+
+        if (ImGui::CollapsingHeader("Category A")) { ImGui::Text("Blah blah blah"); } ImGui::NextColumn();
+        if (ImGui::CollapsingHeader("Category B")) { ImGui::Text("Blah blah blah"); } ImGui::NextColumn();
+        if (ImGui::CollapsingHeader("Category C")) { ImGui::Text("Blah blah blah"); } ImGui::NextColumn();
+        ImGui::Columns(1);
+        ImGui::Separator();
+        ImGui::TreePop();
+    }
+
+    // Word wrapping
+    IMGUI_DEMO_MARKER("Columns (legacy API)/Word-wrapping");
+    if (ImGui::TreeNode("Word-wrapping"))
+    {
+        ImGui::Columns(2, "word-wrapping");
+        ImGui::Separator();
+        ImGui::TextWrapped("The quick brown fox jumps over the lazy dog.");
+        ImGui::TextWrapped("Hello Left");
+        ImGui::NextColumn();
+        ImGui::TextWrapped("The quick brown fox jumps over the lazy dog.");
+        ImGui::TextWrapped("Hello Right");
+        ImGui::Columns(1);
+        ImGui::Separator();
+        ImGui::TreePop();
+    }
+
+    IMGUI_DEMO_MARKER("Columns (legacy API)/Horizontal Scrolling");
+    if (ImGui::TreeNode("Horizontal Scrolling"))
+    {
+        ImGui::SetNextWindowContentSize(ImVec2(1500.0f, 0.0f));
+        ImVec2 child_size = ImVec2(0, ImGui::GetFontSize() * 20.0f);
+        ImGui::BeginChild("##ScrollingRegion", child_size, false, ImGuiWindowFlags_HorizontalScrollbar);
+        ImGui::Columns(10);
+
+        // Also demonstrate using clipper for large vertical lists
+        int ITEMS_COUNT = 2000;
+        ImGuiListClipper clipper;
+        clipper.Begin(ITEMS_COUNT);
+        while (clipper.Step())
+        {
+            for (int i = clipper.DisplayStart; i < clipper.DisplayEnd; i++)
+                for (int j = 0; j < 10; j++)
+                {
+                    ImGui::Text("Line %d Column %d...", i, j);
+                    ImGui::NextColumn();
+                }
+        }
+        ImGui::Columns(1);
+        ImGui::EndChild();
+        ImGui::TreePop();
+    }
+
+    IMGUI_DEMO_MARKER("Columns (legacy API)/Tree");
+    if (ImGui::TreeNode("Tree"))
+    {
+        ImGui::Columns(2, "tree", true);
+        for (int x = 0; x < 3; x++)
+        {
+            bool open1 = ImGui::TreeNode((void*)(intptr_t)x, "Node%d", x);
+            ImGui::NextColumn();
+            ImGui::Text("Node contents");
+            ImGui::NextColumn();
+            if (open1)
+            {
+                for (int y = 0; y < 3; y++)
+                {
+                    bool open2 = ImGui::TreeNode((void*)(intptr_t)y, "Node%d.%d", x, y);
+                    ImGui::NextColumn();
+                    ImGui::Text("Node contents");
+                    if (open2)
+                    {
+                        ImGui::Text("Even more contents");
+                        if (ImGui::TreeNode("Tree in column"))
+                        {
+                            ImGui::Text("The quick brown fox jumps over the lazy dog");
+                            ImGui::TreePop();
+                        }
+                    }
+                    ImGui::NextColumn();
+                    if (open2)
+                        ImGui::TreePop();
+                }
+                ImGui::TreePop();
+            }
+        }
+        ImGui::Columns(1);
+        ImGui::TreePop();
+    }
+
+    ImGui::TreePop();
+}
+
+namespace ImGui { extern ImGuiKeyData* GetKeyData(ImGuiKey key); }
+
+static void ShowDemoWindowMisc()
+{
+    IMGUI_DEMO_MARKER("Filtering");
+    if (ImGui::CollapsingHeader("Filtering"))
+    {
+        // Helper class to easy setup a text filter.
+        // You may want to implement a more feature-full filtering scheme in your own application.
+        static ImGuiTextFilter filter;
+        ImGui::Text("Filter usage:\n"
+                    "  \"\"         display all lines\n"
+                    "  \"xxx\"      display lines containing \"xxx\"\n"
+                    "  \"xxx,yyy\"  display lines containing \"xxx\" or \"yyy\"\n"
+                    "  \"-xxx\"     hide lines containing \"xxx\"");
+        filter.Draw();
+        const char* lines[] = { "aaa1.c", "bbb1.c", "ccc1.c", "aaa2.cpp", "bbb2.cpp", "ccc2.cpp", "abc.h", "hello, world" };
+        for (int i = 0; i < IM_ARRAYSIZE(lines); i++)
+            if (filter.PassFilter(lines[i]))
+                ImGui::BulletText("%s", lines[i]);
+    }
+
+    IMGUI_DEMO_MARKER("Inputs, Navigation & Focus");
+    if (ImGui::CollapsingHeader("Inputs, Navigation & Focus"))
+    {
+        ImGuiIO& io = ImGui::GetIO();
+
+        // Display ImGuiIO output flags
+        IMGUI_DEMO_MARKER("Inputs, Navigation & Focus/Output");
+        ImGui::SetNextItemOpen(true, ImGuiCond_Once);
+        if (ImGui::TreeNode("Output"))
+        {
+            ImGui::Text("io.WantCaptureMouse: %d", io.WantCaptureMouse);
+            ImGui::Text("io.WantCaptureMouseUnlessPopupClose: %d", io.WantCaptureMouseUnlessPopupClose);
+            ImGui::Text("io.WantCaptureKeyboard: %d", io.WantCaptureKeyboard);
+            ImGui::Text("io.WantTextInput: %d", io.WantTextInput);
+            ImGui::Text("io.WantSetMousePos: %d", io.WantSetMousePos);
+            ImGui::Text("io.NavActive: %d, io.NavVisible: %d", io.NavActive, io.NavVisible);
+            ImGui::TreePop();
+        }
+
+        // Display Mouse state
+        IMGUI_DEMO_MARKER("Inputs, Navigation & Focus/Mouse State");
+        if (ImGui::TreeNode("Mouse State"))
+        {
+            if (ImGui::IsMousePosValid())
+                ImGui::Text("Mouse pos: (%g, %g)", io.MousePos.x, io.MousePos.y);
+            else
+                ImGui::Text("Mouse pos: <INVALID>");
+            ImGui::Text("Mouse delta: (%g, %g)", io.MouseDelta.x, io.MouseDelta.y);
+
+            int count = IM_ARRAYSIZE(io.MouseDown);
+            ImGui::Text("Mouse down:");         for (int i = 0; i < count; i++) if (ImGui::IsMouseDown(i))      { ImGui::SameLine(); ImGui::Text("b%d (%.02f secs)", i, io.MouseDownDuration[i]); }
+            ImGui::Text("Mouse clicked:");      for (int i = 0; i < count; i++) if (ImGui::IsMouseClicked(i))   { ImGui::SameLine(); ImGui::Text("b%d (%d)", i, ImGui::GetMouseClickedCount(i)); }
+            ImGui::Text("Mouse released:");     for (int i = 0; i < count; i++) if (ImGui::IsMouseReleased(i))  { ImGui::SameLine(); ImGui::Text("b%d", i); }
+            ImGui::Text("Mouse wheel: %.1f", io.MouseWheel);
+            ImGui::Text("Pen Pressure: %.1f", io.PenPressure); // Note: currently unused
+            ImGui::TreePop();
+        }
+
+        // Display Keyboard/Mouse state
+        IMGUI_DEMO_MARKER("Inputs, Navigation & Focus/Keyboard, Gamepad & Navigation State");
+        if (ImGui::TreeNode("Keyboard, Gamepad & Navigation State"))
+        {
+            // We iterate both legacy native range and named ImGuiKey ranges, which is a little odd but this allow displaying the data for old/new backends.
+            // User code should never have to go through such hoops: old code may use native keycodes, new code may use ImGuiKey codes.
+#ifdef IMGUI_DISABLE_OBSOLETE_KEYIO
+            struct funcs { static bool IsLegacyNativeDupe(ImGuiKey) { return false; } };
+            const ImGuiKey key_first = ImGuiKey_NamedKey_BEGIN;
+#else
+            struct funcs { static bool IsLegacyNativeDupe(ImGuiKey key) { return key < 512 && ImGui::GetIO().KeyMap[key] != -1; } }; // Hide Native<>ImGuiKey duplicates when both exists in the array
+            const ImGuiKey key_first = 0;
+            //ImGui::Text("Legacy raw:");       for (ImGuiKey key = key_first; key < ImGuiKey_COUNT; key++) { if (io.KeysDown[key]) { ImGui::SameLine(); ImGui::Text("\"%s\" %d", ImGui::GetKeyName(key), key); } }
+#endif
+            ImGui::Text("Keys down:");          for (ImGuiKey key = key_first; key < ImGuiKey_COUNT; key++) { if (funcs::IsLegacyNativeDupe(key)) continue; if (ImGui::IsKeyDown(key)) { ImGui::SameLine(); ImGui::Text("\"%s\" %d (%.02f secs)", ImGui::GetKeyName(key), key, ImGui::GetKeyData(key)->DownDuration); } }
+            ImGui::Text("Keys pressed:");       for (ImGuiKey key = key_first; key < ImGuiKey_COUNT; key++) { if (funcs::IsLegacyNativeDupe(key)) continue; if (ImGui::IsKeyPressed(key)) { ImGui::SameLine(); ImGui::Text("\"%s\" %d", ImGui::GetKeyName(key), key); } }
+            ImGui::Text("Keys released:");      for (ImGuiKey key = key_first; key < ImGuiKey_COUNT; key++) { if (funcs::IsLegacyNativeDupe(key)) continue; if (ImGui::IsKeyReleased(key)) { ImGui::SameLine(); ImGui::Text("\"%s\" %d", ImGui::GetKeyName(key), key); } }
+            ImGui::Text("Keys mods: %s%s%s%s", io.KeyCtrl ? "CTRL " : "", io.KeyShift ? "SHIFT " : "", io.KeyAlt ? "ALT " : "", io.KeySuper ? "SUPER " : "");
+            ImGui::Text("Chars queue:");        for (int i = 0; i < io.InputQueueCharacters.Size; i++) { ImWchar c = io.InputQueueCharacters[i]; ImGui::SameLine();  ImGui::Text("\'%c\' (0x%04X)", (c > ' ' && c <= 255) ? (char)c : '?', c); } // FIXME: We should convert 'c' to UTF-8 here but the functions are not public.
+            ImGui::Text("NavInputs down:");     for (int i = 0; i < IM_ARRAYSIZE(io.NavInputs); i++) if (io.NavInputs[i] > 0.0f)              { ImGui::SameLine(); ImGui::Text("[%d] %.2f (%.02f secs)", i, io.NavInputs[i], io.NavInputsDownDuration[i]); }
+            ImGui::Text("NavInputs pressed:");  for (int i = 0; i < IM_ARRAYSIZE(io.NavInputs); i++) if (io.NavInputsDownDuration[i] == 0.0f) { ImGui::SameLine(); ImGui::Text("[%d]", i); }
+
+            // Draw an arbitrary US keyboard layout to visualize translated keys
+            {
+                const ImVec2 key_size = ImVec2(35.0f, 35.0f);
+                const float  key_rounding = 3.0f;
+                const ImVec2 key_face_size = ImVec2(25.0f, 25.0f);
+                const ImVec2 key_face_pos = ImVec2(5.0f, 3.0f);
+                const float  key_face_rounding = 2.0f;
+                const ImVec2 key_label_pos = ImVec2(7.0f, 4.0f);
+                const ImVec2 key_step = ImVec2(key_size.x - 1.0f, key_size.y - 1.0f);
+                const float  key_row_offset = 9.0f;
+
+                ImVec2 board_min = ImGui::GetCursorScreenPos();
+                ImVec2 board_max = ImVec2(board_min.x + 3 * key_step.x + 2 * key_row_offset + 10.0f, board_min.y + 3 * key_step.y + 10.0f);
+                ImVec2 start_pos = ImVec2(board_min.x + 5.0f - key_step.x, board_min.y);
+
+                struct KeyLayoutData { int Row, Col; const char* Label; ImGuiKey Key; };
+                const KeyLayoutData keys_to_display[] =
+                {
+                    { 0, 0, "", ImGuiKey_Tab },      { 0, 1, "Q", ImGuiKey_Q }, { 0, 2, "W", ImGuiKey_W }, { 0, 3, "E", ImGuiKey_E }, { 0, 4, "R", ImGuiKey_R },
+                    { 1, 0, "", ImGuiKey_CapsLock }, { 1, 1, "A", ImGuiKey_A }, { 1, 2, "S", ImGuiKey_S }, { 1, 3, "D", ImGuiKey_D }, { 1, 4, "F", ImGuiKey_F },
+                    { 2, 0, "", ImGuiKey_LeftShift },{ 2, 1, "Z", ImGuiKey_Z }, { 2, 2, "X", ImGuiKey_X }, { 2, 3, "C", ImGuiKey_C }, { 2, 4, "V", ImGuiKey_V }
+                };
+
+                // Elements rendered manually via ImDrawList API are not clipped automatically.
+                // While not strictly necessary, here IsItemVisible() is used to avoid rendering these shapes when they are out of view.
+                ImGui::Dummy(ImVec2(board_max.x - board_min.x, board_max.y - board_min.y));
+                if (ImGui::IsItemVisible())
+                {
+                    ImDrawList* draw_list = ImGui::GetWindowDrawList();
+                    draw_list->PushClipRect(board_min, board_max, true);
+                    for (int n = 0; n < IM_ARRAYSIZE(keys_to_display); n++)
+                    {
+                        const KeyLayoutData* key_data = &keys_to_display[n];
+                        ImVec2 key_min = ImVec2(start_pos.x + key_data->Col * key_step.x + key_data->Row * key_row_offset, start_pos.y + key_data->Row * key_step.y);
+                        ImVec2 key_max = ImVec2(key_min.x + key_size.x, key_min.y + key_size.y);
+                        draw_list->AddRectFilled(key_min, key_max, IM_COL32(204, 204, 204, 255), key_rounding);
+                        draw_list->AddRect(key_min, key_max, IM_COL32(24, 24, 24, 255), key_rounding);
+                        ImVec2 face_min = ImVec2(key_min.x + key_face_pos.x, key_min.y + key_face_pos.y);
+                        ImVec2 face_max = ImVec2(face_min.x + key_face_size.x, face_min.y + key_face_size.y);
+                        draw_list->AddRect(face_min, face_max, IM_COL32(193, 193, 193, 255), key_face_rounding, ImDrawFlags_None, 2.0f);
+                        draw_list->AddRectFilled(face_min, face_max, IM_COL32(252, 252, 252, 255), key_face_rounding);
+                        ImVec2 label_min = ImVec2(key_min.x + key_label_pos.x, key_min.y + key_label_pos.y);
+                        draw_list->AddText(label_min, IM_COL32(64, 64, 64, 255), key_data->Label);
+                        if (ImGui::IsKeyDown(key_data->Key))
+                            draw_list->AddRectFilled(key_min, key_max, IM_COL32(255, 0, 0, 128), key_rounding);
+                    }
+                    draw_list->PopClipRect();
+                }
+            }
+            ImGui::TreePop();
+        }
+
+        if (ImGui::TreeNode("Capture override"))
+        {
+            HelpMarker(
+                "The value of io.WantCaptureMouse and io.WantCaptureKeyboard are normally set by Dear ImGui "
+                "to instruct your application of how to route inputs. Typically, when a value is true, it means "
+                "Dear ImGui wants the corresponding inputs and we expect the underlying application to ignore them.\n\n"
+                "The most typical case is: when hovering a window, Dear ImGui set io.WantCaptureMouse to true, "
+                "and underlying application should ignore mouse inputs (in practice there are many and more subtle "
+                "rules leading to how those flags are set).");
+
+            ImGui::Text("io.WantCaptureMouse: %d", io.WantCaptureMouse);
+            ImGui::Text("io.WantCaptureMouseUnlessPopupClose: %d", io.WantCaptureMouseUnlessPopupClose);
+            ImGui::Text("io.WantCaptureKeyboard: %d", io.WantCaptureKeyboard);
+
+            HelpMarker(
+                "Hovering the colored canvas will override io.WantCaptureXXX fields.\n"
+                "Notice how normally (when set to none), the value of io.WantCaptureKeyboard would be false when hovering and true when clicking.");
+            static int capture_override_mouse = -1;
+            static int capture_override_keyboard = -1;
+            const char* capture_override_desc[] = { "None", "Set to false", "Set to true" };
+            ImGui::SetNextItemWidth(ImGui::GetFontSize() * 15);
+            ImGui::SliderInt("SetNextFrameWantCaptureMouse()", &capture_override_mouse, -1, +1, capture_override_desc[capture_override_mouse + 1], ImGuiSliderFlags_AlwaysClamp);
+            ImGui::SetNextItemWidth(ImGui::GetFontSize() * 15);
+            ImGui::SliderInt("SetNextFrameWantCaptureKeyboard()", &capture_override_keyboard, -1, +1, capture_override_desc[capture_override_keyboard + 1], ImGuiSliderFlags_AlwaysClamp);
+
+            ImGui::ColorButton("##panel", ImVec4(0.7f, 0.1f, 0.7f, 1.0f), ImGuiColorEditFlags_NoTooltip | ImGuiColorEditFlags_NoDragDrop, ImVec2(256.0f, 192.0f)); // Dummy item
+            if (ImGui::IsItemHovered() && capture_override_mouse != -1)
+                ImGui::SetNextFrameWantCaptureMouse(capture_override_mouse == 1);
+            if (ImGui::IsItemHovered() && capture_override_keyboard != -1)
+                ImGui::SetNextFrameWantCaptureKeyboard(capture_override_keyboard == 1);
+            
+            ImGui::TreePop();
+        }
+
+        IMGUI_DEMO_MARKER("Inputs, Navigation & Focus/Tabbing");
+        if (ImGui::TreeNode("Tabbing"))
+        {
+            ImGui::Text("Use TAB/SHIFT+TAB to cycle through keyboard editable fields.");
+            static char buf[32] = "hello";
+            ImGui::InputText("1", buf, IM_ARRAYSIZE(buf));
+            ImGui::InputText("2", buf, IM_ARRAYSIZE(buf));
+            ImGui::InputText("3", buf, IM_ARRAYSIZE(buf));
+            ImGui::PushAllowKeyboardFocus(false);
+            ImGui::InputText("4 (tab skip)", buf, IM_ARRAYSIZE(buf));
+            ImGui::SameLine(); HelpMarker("Item won't be cycled through when using TAB or Shift+Tab.");
+            ImGui::PopAllowKeyboardFocus();
+            ImGui::InputText("5", buf, IM_ARRAYSIZE(buf));
+            ImGui::TreePop();
+        }
+
+        IMGUI_DEMO_MARKER("Inputs, Navigation & Focus/Focus from code");
+        if (ImGui::TreeNode("Focus from code"))
+        {
+            bool focus_1 = ImGui::Button("Focus on 1"); ImGui::SameLine();
+            bool focus_2 = ImGui::Button("Focus on 2"); ImGui::SameLine();
+            bool focus_3 = ImGui::Button("Focus on 3");
+            int has_focus = 0;
+            static char buf[128] = "click on a button to set focus";
+
+            if (focus_1) ImGui::SetKeyboardFocusHere();
+            ImGui::InputText("1", buf, IM_ARRAYSIZE(buf));
+            if (ImGui::IsItemActive()) has_focus = 1;
+
+            if (focus_2) ImGui::SetKeyboardFocusHere();
+            ImGui::InputText("2", buf, IM_ARRAYSIZE(buf));
+            if (ImGui::IsItemActive()) has_focus = 2;
+
+            ImGui::PushAllowKeyboardFocus(false);
+            if (focus_3) ImGui::SetKeyboardFocusHere();
+            ImGui::InputText("3 (tab skip)", buf, IM_ARRAYSIZE(buf));
+            if (ImGui::IsItemActive()) has_focus = 3;
+            ImGui::SameLine(); HelpMarker("Item won't be cycled through when using TAB or Shift+Tab.");
+            ImGui::PopAllowKeyboardFocus();
+
+            if (has_focus)
+                ImGui::Text("Item with focus: %d", has_focus);
+            else
+                ImGui::Text("Item with focus: <none>");
+
+            // Use >= 0 parameter to SetKeyboardFocusHere() to focus an upcoming item
+            static float f3[3] = { 0.0f, 0.0f, 0.0f };
+            int focus_ahead = -1;
+            if (ImGui::Button("Focus on X")) { focus_ahead = 0; } ImGui::SameLine();
+            if (ImGui::Button("Focus on Y")) { focus_ahead = 1; } ImGui::SameLine();
+            if (ImGui::Button("Focus on Z")) { focus_ahead = 2; }
+            if (focus_ahead != -1) ImGui::SetKeyboardFocusHere(focus_ahead);
+            ImGui::SliderFloat3("Float3", &f3[0], 0.0f, 1.0f);
+
+            ImGui::TextWrapped("NB: Cursor & selection are preserved when refocusing last used item in code.");
+            ImGui::TreePop();
+        }
+
+        IMGUI_DEMO_MARKER("Inputs, Navigation & Focus/Dragging");
+        if (ImGui::TreeNode("Dragging"))
+        {
+            ImGui::TextWrapped("You can use ImGui::GetMouseDragDelta(0) to query for the dragged amount on any widget.");
+            for (int button = 0; button < 3; button++)
+            {
+                ImGui::Text("IsMouseDragging(%d):", button);
+                ImGui::Text("  w/ default threshold: %d,", ImGui::IsMouseDragging(button));
+                ImGui::Text("  w/ zero threshold: %d,", ImGui::IsMouseDragging(button, 0.0f));
+                ImGui::Text("  w/ large threshold: %d,", ImGui::IsMouseDragging(button, 20.0f));
+            }
+
+            ImGui::Button("Drag Me");
+            if (ImGui::IsItemActive())
+                ImGui::GetForegroundDrawList()->AddLine(io.MouseClickedPos[0], io.MousePos, ImGui::GetColorU32(ImGuiCol_Button), 4.0f); // Draw a line between the button and the mouse cursor
+
+            // Drag operations gets "unlocked" when the mouse has moved past a certain threshold
+            // (the default threshold is stored in io.MouseDragThreshold). You can request a lower or higher
+            // threshold using the second parameter of IsMouseDragging() and GetMouseDragDelta().
+            ImVec2 value_raw = ImGui::GetMouseDragDelta(0, 0.0f);
+            ImVec2 value_with_lock_threshold = ImGui::GetMouseDragDelta(0);
+            ImVec2 mouse_delta = io.MouseDelta;
+            ImGui::Text("GetMouseDragDelta(0):");
+            ImGui::Text("  w/ default threshold: (%.1f, %.1f)", value_with_lock_threshold.x, value_with_lock_threshold.y);
+            ImGui::Text("  w/ zero threshold: (%.1f, %.1f)", value_raw.x, value_raw.y);
+            ImGui::Text("io.MouseDelta: (%.1f, %.1f)", mouse_delta.x, mouse_delta.y);
+            ImGui::TreePop();
+        }
+
+        IMGUI_DEMO_MARKER("Inputs, Navigation & Focus/Mouse cursors");
+        if (ImGui::TreeNode("Mouse cursors"))
+        {
+            const char* mouse_cursors_names[] = { "Arrow", "TextInput", "ResizeAll", "ResizeNS", "ResizeEW", "ResizeNESW", "ResizeNWSE", "Hand", "NotAllowed" };
+            IM_ASSERT(IM_ARRAYSIZE(mouse_cursors_names) == ImGuiMouseCursor_COUNT);
+
+            ImGuiMouseCursor current = ImGui::GetMouseCursor();
+            ImGui::Text("Current mouse cursor = %d: %s", current, mouse_cursors_names[current]);
+            ImGui::Text("Hover to see mouse cursors:");
+            ImGui::SameLine(); HelpMarker(
+                "Your application can render a different mouse cursor based on what ImGui::GetMouseCursor() returns. "
+                "If software cursor rendering (io.MouseDrawCursor) is set ImGui will draw the right cursor for you, "
+                "otherwise your backend needs to handle it.");
+            for (int i = 0; i < ImGuiMouseCursor_COUNT; i++)
+            {
+                char label[32];
+                sprintf(label, "Mouse cursor %d: %s", i, mouse_cursors_names[i]);
+                ImGui::Bullet(); ImGui::Selectable(label, false);
+                if (ImGui::IsItemHovered())
+                    ImGui::SetMouseCursor(i);
+            }
+            ImGui::TreePop();
+        }
+    }
+}
+
+//-----------------------------------------------------------------------------
+// [SECTION] About Window / ShowAboutWindow()
+// Access from Dear ImGui Demo -> Tools -> About
+//-----------------------------------------------------------------------------
+
+void ImGui::ShowAboutWindow(bool* p_open)
+{
+    if (!ImGui::Begin("About Dear ImGui", p_open, ImGuiWindowFlags_AlwaysAutoResize))
+    {
+        ImGui::End();
+        return;
+    }
+    IMGUI_DEMO_MARKER("Tools/About Dear ImGui");
+    ImGui::Text("Dear ImGui %s", ImGui::GetVersion());
+    ImGui::Separator();
+    ImGui::Text("By Omar Cornut and all Dear ImGui contributors.");
+    ImGui::Text("Dear ImGui is licensed under the MIT License, see LICENSE for more information.");
+
+    static bool show_config_info = false;
+    ImGui::Checkbox("Config/Build Information", &show_config_info);
+    if (show_config_info)
+    {
+        ImGuiIO& io = ImGui::GetIO();
+        ImGuiStyle& style = ImGui::GetStyle();
+
+        bool copy_to_clipboard = ImGui::Button("Copy to clipboard");
+        ImVec2 child_size = ImVec2(0, ImGui::GetTextLineHeightWithSpacing() * 18);
+        ImGui::BeginChildFrame(ImGui::GetID("cfg_infos"), child_size, ImGuiWindowFlags_NoMove);
+        if (copy_to_clipboard)
+        {
+            ImGui::LogToClipboard();
+            ImGui::LogText("```\n"); // Back quotes will make text appears without formatting when pasting on GitHub
+        }
+
+        ImGui::Text("Dear ImGui %s (%d)", IMGUI_VERSION, IMGUI_VERSION_NUM);
+        ImGui::Separator();
+        ImGui::Text("sizeof(size_t): %d, sizeof(ImDrawIdx): %d, sizeof(ImDrawVert): %d", (int)sizeof(size_t), (int)sizeof(ImDrawIdx), (int)sizeof(ImDrawVert));
+        ImGui::Text("define: __cplusplus=%d", (int)__cplusplus);
+#ifdef IMGUI_DISABLE_OBSOLETE_FUNCTIONS
+        ImGui::Text("define: IMGUI_DISABLE_OBSOLETE_FUNCTIONS");
+#endif
+#ifdef IMGUI_DISABLE_OBSOLETE_KEYIO
+        ImGui::Text("define: IMGUI_DISABLE_OBSOLETE_KEYIO");
+#endif
+#ifdef IMGUI_DISABLE_WIN32_DEFAULT_CLIPBOARD_FUNCTIONS
+        ImGui::Text("define: IMGUI_DISABLE_WIN32_DEFAULT_CLIPBOARD_FUNCTIONS");
+#endif
+#ifdef IMGUI_DISABLE_WIN32_DEFAULT_IME_FUNCTIONS
+        ImGui::Text("define: IMGUI_DISABLE_WIN32_DEFAULT_IME_FUNCTIONS");
+#endif
+#ifdef IMGUI_DISABLE_WIN32_FUNCTIONS
+        ImGui::Text("define: IMGUI_DISABLE_WIN32_FUNCTIONS");
+#endif
+#ifdef IMGUI_DISABLE_DEFAULT_FORMAT_FUNCTIONS
+        ImGui::Text("define: IMGUI_DISABLE_DEFAULT_FORMAT_FUNCTIONS");
+#endif
+#ifdef IMGUI_DISABLE_DEFAULT_MATH_FUNCTIONS
+        ImGui::Text("define: IMGUI_DISABLE_DEFAULT_MATH_FUNCTIONS");
+#endif
+#ifdef IMGUI_DISABLE_DEFAULT_FILE_FUNCTIONS
+        ImGui::Text("define: IMGUI_DISABLE_DEFAULT_FILE_FUNCTIONS");
+#endif
+#ifdef IMGUI_DISABLE_FILE_FUNCTIONS
+        ImGui::Text("define: IMGUI_DISABLE_FILE_FUNCTIONS");
+#endif
+#ifdef IMGUI_DISABLE_DEFAULT_ALLOCATORS
+        ImGui::Text("define: IMGUI_DISABLE_DEFAULT_ALLOCATORS");
+#endif
+#ifdef IMGUI_USE_BGRA_PACKED_COLOR
+        ImGui::Text("define: IMGUI_USE_BGRA_PACKED_COLOR");
+#endif
+#ifdef _WIN32
+        ImGui::Text("define: _WIN32");
+#endif
+#ifdef _WIN64
+        ImGui::Text("define: _WIN64");
+#endif
+#ifdef __linux__
+        ImGui::Text("define: __linux__");
+#endif
+#ifdef __APPLE__
+        ImGui::Text("define: __APPLE__");
+#endif
+#ifdef _MSC_VER
+        ImGui::Text("define: _MSC_VER=%d", _MSC_VER);
+#endif
+#ifdef _MSVC_LANG
+        ImGui::Text("define: _MSVC_LANG=%d", (int)_MSVC_LANG);
+#endif
+#ifdef __MINGW32__
+        ImGui::Text("define: __MINGW32__");
+#endif
+#ifdef __MINGW64__
+        ImGui::Text("define: __MINGW64__");
+#endif
+#ifdef __GNUC__
+        ImGui::Text("define: __GNUC__=%d", (int)__GNUC__);
+#endif
+#ifdef __clang_version__
+        ImGui::Text("define: __clang_version__=%s", __clang_version__);
+#endif
+        ImGui::Separator();
+        ImGui::Text("io.BackendPlatformName: %s", io.BackendPlatformName ? io.BackendPlatformName : "NULL");
+        ImGui::Text("io.BackendRendererName: %s", io.BackendRendererName ? io.BackendRendererName : "NULL");
+        ImGui::Text("io.ConfigFlags: 0x%08X", io.ConfigFlags);
+        if (io.ConfigFlags & ImGuiConfigFlags_NavEnableKeyboard)        ImGui::Text(" NavEnableKeyboard");
+        if (io.ConfigFlags & ImGuiConfigFlags_NavEnableGamepad)         ImGui::Text(" NavEnableGamepad");
+        if (io.ConfigFlags & ImGuiConfigFlags_NavEnableSetMousePos)     ImGui::Text(" NavEnableSetMousePos");
+        if (io.ConfigFlags & ImGuiConfigFlags_NavNoCaptureKeyboard)     ImGui::Text(" NavNoCaptureKeyboard");
+        if (io.ConfigFlags & ImGuiConfigFlags_NoMouse)                  ImGui::Text(" NoMouse");
+        if (io.ConfigFlags & ImGuiConfigFlags_NoMouseCursorChange)      ImGui::Text(" NoMouseCursorChange");
+        if (io.MouseDrawCursor)                                         ImGui::Text("io.MouseDrawCursor");
+        if (io.ConfigMacOSXBehaviors)                                   ImGui::Text("io.ConfigMacOSXBehaviors");
+        if (io.ConfigInputTextCursorBlink)                              ImGui::Text("io.ConfigInputTextCursorBlink");
+        if (io.ConfigWindowsResizeFromEdges)                            ImGui::Text("io.ConfigWindowsResizeFromEdges");
+        if (io.ConfigWindowsMoveFromTitleBarOnly)                       ImGui::Text("io.ConfigWindowsMoveFromTitleBarOnly");
+        if (io.ConfigMemoryCompactTimer >= 0.0f)                        ImGui::Text("io.ConfigMemoryCompactTimer = %.1f", io.ConfigMemoryCompactTimer);
+        ImGui::Text("io.BackendFlags: 0x%08X", io.BackendFlags);
+        if (io.BackendFlags & ImGuiBackendFlags_HasGamepad)             ImGui::Text(" HasGamepad");
+        if (io.BackendFlags & ImGuiBackendFlags_HasMouseCursors)        ImGui::Text(" HasMouseCursors");
+        if (io.BackendFlags & ImGuiBackendFlags_HasSetMousePos)         ImGui::Text(" HasSetMousePos");
+        if (io.BackendFlags & ImGuiBackendFlags_RendererHasVtxOffset)   ImGui::Text(" RendererHasVtxOffset");
+        ImGui::Separator();
+        ImGui::Text("io.Fonts: %d fonts, Flags: 0x%08X, TexSize: %d,%d", io.Fonts->Fonts.Size, io.Fonts->Flags, io.Fonts->TexWidth, io.Fonts->TexHeight);
+        ImGui::Text("io.DisplaySize: %.2f,%.2f", io.DisplaySize.x, io.DisplaySize.y);
+        ImGui::Text("io.DisplayFramebufferScale: %.2f,%.2f", io.DisplayFramebufferScale.x, io.DisplayFramebufferScale.y);
+        ImGui::Separator();
+        ImGui::Text("style.WindowPadding: %.2f,%.2f", style.WindowPadding.x, style.WindowPadding.y);
+        ImGui::Text("style.WindowBorderSize: %.2f", style.WindowBorderSize);
+        ImGui::Text("style.FramePadding: %.2f,%.2f", style.FramePadding.x, style.FramePadding.y);
+        ImGui::Text("style.FrameRounding: %.2f", style.FrameRounding);
+        ImGui::Text("style.FrameBorderSize: %.2f", style.FrameBorderSize);
+        ImGui::Text("style.ItemSpacing: %.2f,%.2f", style.ItemSpacing.x, style.ItemSpacing.y);
+        ImGui::Text("style.ItemInnerSpacing: %.2f,%.2f", style.ItemInnerSpacing.x, style.ItemInnerSpacing.y);
+
+        if (copy_to_clipboard)
+        {
+            ImGui::LogText("\n```\n");
+            ImGui::LogFinish();
+        }
+        ImGui::EndChildFrame();
+    }
+    ImGui::End();
+}
+
+//-----------------------------------------------------------------------------
+// [SECTION] Style Editor / ShowStyleEditor()
+//-----------------------------------------------------------------------------
+// - ShowFontSelector()
+// - ShowStyleSelector()
+// - ShowStyleEditor()
+//-----------------------------------------------------------------------------
+
+// Forward declare ShowFontAtlas() which isn't worth putting in public API yet
+namespace ImGui { IMGUI_API void ShowFontAtlas(ImFontAtlas* atlas); }
+
+// Demo helper function to select among loaded fonts.
+// Here we use the regular BeginCombo()/EndCombo() api which is the more flexible one.
+void ImGui::ShowFontSelector(const char* label)
+{
+    ImGuiIO& io = ImGui::GetIO();
+    ImFont* font_current = ImGui::GetFont();
+    if (ImGui::BeginCombo(label, font_current->GetDebugName()))
+    {
+        for (int n = 0; n < io.Fonts->Fonts.Size; n++)
+        {
+            ImFont* font = io.Fonts->Fonts[n];
+            ImGui::PushID((void*)font);
+            if (ImGui::Selectable(font->GetDebugName(), font == font_current))
+                io.FontDefault = font;
+            ImGui::PopID();
+        }
+        ImGui::EndCombo();
+    }
+    ImGui::SameLine();
+    HelpMarker(
+        "- Load additional fonts with io.Fonts->AddFontFromFileTTF().\n"
+        "- The font atlas is built when calling io.Fonts->GetTexDataAsXXXX() or io.Fonts->Build().\n"
+        "- Read FAQ and docs/FONTS.md for more details.\n"
+        "- If you need to add/remove fonts at runtime (e.g. for DPI change), do it before calling NewFrame().");
+}
+
+// Demo helper function to select among default colors. See ShowStyleEditor() for more advanced options.
+// Here we use the simplified Combo() api that packs items into a single literal string.
+// Useful for quick combo boxes where the choices are known locally.
+bool ImGui::ShowStyleSelector(const char* label)
+{
+    static int style_idx = -1;
+    if (ImGui::Combo(label, &style_idx, "Dark\0Light\0Classic\0"))
+    {
+        switch (style_idx)
+        {
+        case 0: ImGui::StyleColorsDark(); break;
+        case 1: ImGui::StyleColorsLight(); break;
+        case 2: ImGui::StyleColorsClassic(); break;
+        }
+        return true;
+    }
+    return false;
+}
+
+void ImGui::ShowStyleEditor(ImGuiStyle* ref)
+{
+    IMGUI_DEMO_MARKER("Tools/Style Editor");
+    // You can pass in a reference ImGuiStyle structure to compare to, revert to and save to
+    // (without a reference style pointer, we will use one compared locally as a reference)
+    ImGuiStyle& style = ImGui::GetStyle();
+    static ImGuiStyle ref_saved_style;
+
+    // Default to using internal storage as reference
+    static bool init = true;
+    if (init && ref == NULL)
+        ref_saved_style = style;
+    init = false;
+    if (ref == NULL)
+        ref = &ref_saved_style;
+
+    ImGui::PushItemWidth(ImGui::GetWindowWidth() * 0.50f);
+
+    if (ImGui::ShowStyleSelector("Colors##Selector"))
+        ref_saved_style = style;
+    ImGui::ShowFontSelector("Fonts##Selector");
+
+    // Simplified Settings (expose floating-pointer border sizes as boolean representing 0.0f or 1.0f)
+    if (ImGui::SliderFloat("FrameRounding", &style.FrameRounding, 0.0f, 12.0f, "%.0f"))
+        style.GrabRounding = style.FrameRounding; // Make GrabRounding always the same value as FrameRounding
+    { bool border = (style.WindowBorderSize > 0.0f); if (ImGui::Checkbox("WindowBorder", &border)) { style.WindowBorderSize = border ? 1.0f : 0.0f; } }
+    ImGui::SameLine();
+    { bool border = (style.FrameBorderSize > 0.0f);  if (ImGui::Checkbox("FrameBorder",  &border)) { style.FrameBorderSize  = border ? 1.0f : 0.0f; } }
+    ImGui::SameLine();
+    { bool border = (style.PopupBorderSize > 0.0f);  if (ImGui::Checkbox("PopupBorder",  &border)) { style.PopupBorderSize  = border ? 1.0f : 0.0f; } }
+
+    // Save/Revert button
+    if (ImGui::Button("Save Ref"))
+        *ref = ref_saved_style = style;
+    ImGui::SameLine();
+    if (ImGui::Button("Revert Ref"))
+        style = *ref;
+    ImGui::SameLine();
+    HelpMarker(
+        "Save/Revert in local non-persistent storage. Default Colors definition are not affected. "
+        "Use \"Export\" below to save them somewhere.");
+
+    ImGui::Separator();
+
+    if (ImGui::BeginTabBar("##tabs", ImGuiTabBarFlags_None))
+    {
+        if (ImGui::BeginTabItem("Sizes"))
+        {
+            ImGui::Text("Main");
+            ImGui::SliderFloat2("WindowPadding", (float*)&style.WindowPadding, 0.0f, 20.0f, "%.0f");
+            ImGui::SliderFloat2("FramePadding", (float*)&style.FramePadding, 0.0f, 20.0f, "%.0f");
+            ImGui::SliderFloat2("CellPadding", (float*)&style.CellPadding, 0.0f, 20.0f, "%.0f");
+            ImGui::SliderFloat2("ItemSpacing", (float*)&style.ItemSpacing, 0.0f, 20.0f, "%.0f");
+            ImGui::SliderFloat2("ItemInnerSpacing", (float*)&style.ItemInnerSpacing, 0.0f, 20.0f, "%.0f");
+            ImGui::SliderFloat2("TouchExtraPadding", (float*)&style.TouchExtraPadding, 0.0f, 10.0f, "%.0f");
+            ImGui::SliderFloat("IndentSpacing", &style.IndentSpacing, 0.0f, 30.0f, "%.0f");
+            ImGui::SliderFloat("ScrollbarSize", &style.ScrollbarSize, 1.0f, 20.0f, "%.0f");
+            ImGui::SliderFloat("GrabMinSize", &style.GrabMinSize, 1.0f, 20.0f, "%.0f");
+            ImGui::Text("Borders");
+            ImGui::SliderFloat("WindowBorderSize", &style.WindowBorderSize, 0.0f, 1.0f, "%.0f");
+            ImGui::SliderFloat("ChildBorderSize", &style.ChildBorderSize, 0.0f, 1.0f, "%.0f");
+            ImGui::SliderFloat("PopupBorderSize", &style.PopupBorderSize, 0.0f, 1.0f, "%.0f");
+            ImGui::SliderFloat("FrameBorderSize", &style.FrameBorderSize, 0.0f, 1.0f, "%.0f");
+            ImGui::SliderFloat("TabBorderSize", &style.TabBorderSize, 0.0f, 1.0f, "%.0f");
+            ImGui::Text("Rounding");
+            ImGui::SliderFloat("WindowRounding", &style.WindowRounding, 0.0f, 12.0f, "%.0f");
+            ImGui::SliderFloat("ChildRounding", &style.ChildRounding, 0.0f, 12.0f, "%.0f");
+            ImGui::SliderFloat("FrameRounding", &style.FrameRounding, 0.0f, 12.0f, "%.0f");
+            ImGui::SliderFloat("PopupRounding", &style.PopupRounding, 0.0f, 12.0f, "%.0f");
+            ImGui::SliderFloat("ScrollbarRounding", &style.ScrollbarRounding, 0.0f, 12.0f, "%.0f");
+            ImGui::SliderFloat("GrabRounding", &style.GrabRounding, 0.0f, 12.0f, "%.0f");
+            ImGui::SliderFloat("LogSliderDeadzone", &style.LogSliderDeadzone, 0.0f, 12.0f, "%.0f");
+            ImGui::SliderFloat("TabRounding", &style.TabRounding, 0.0f, 12.0f, "%.0f");
+            ImGui::Text("Alignment");
+            ImGui::SliderFloat2("WindowTitleAlign", (float*)&style.WindowTitleAlign, 0.0f, 1.0f, "%.2f");
+            int window_menu_button_position = style.WindowMenuButtonPosition + 1;
+            if (ImGui::Combo("WindowMenuButtonPosition", (int*)&window_menu_button_position, "None\0Left\0Right\0"))
+                style.WindowMenuButtonPosition = window_menu_button_position - 1;
+            ImGui::Combo("ColorButtonPosition", (int*)&style.ColorButtonPosition, "Left\0Right\0");
+            ImGui::SliderFloat2("ButtonTextAlign", (float*)&style.ButtonTextAlign, 0.0f, 1.0f, "%.2f");
+            ImGui::SameLine(); HelpMarker("Alignment applies when a button is larger than its text content.");
+            ImGui::SliderFloat2("SelectableTextAlign", (float*)&style.SelectableTextAlign, 0.0f, 1.0f, "%.2f");
+            ImGui::SameLine(); HelpMarker("Alignment applies when a selectable is larger than its text content.");
+            ImGui::Text("Safe Area Padding");
+            ImGui::SameLine(); HelpMarker("Adjust if you cannot see the edges of your screen (e.g. on a TV where scaling has not been configured).");
+            ImGui::SliderFloat2("DisplaySafeAreaPadding", (float*)&style.DisplaySafeAreaPadding, 0.0f, 30.0f, "%.0f");
+            ImGui::EndTabItem();
+        }
+
+        if (ImGui::BeginTabItem("Colors"))
+        {
+            static int output_dest = 0;
+            static bool output_only_modified = true;
+            if (ImGui::Button("Export"))
+            {
+                if (output_dest == 0)
+                    ImGui::LogToClipboard();
+                else
+                    ImGui::LogToTTY();
+                ImGui::LogText("ImVec4* colors = ImGui::GetStyle().Colors;" IM_NEWLINE);
+                for (int i = 0; i < ImGuiCol_COUNT; i++)
+                {
+                    const ImVec4& col = style.Colors[i];
+                    const char* name = ImGui::GetStyleColorName(i);
+                    if (!output_only_modified || memcmp(&col, &ref->Colors[i], sizeof(ImVec4)) != 0)
+                        ImGui::LogText("colors[ImGuiCol_%s]%*s= ImVec4(%.2ff, %.2ff, %.2ff, %.2ff);" IM_NEWLINE,
+                            name, 23 - (int)strlen(name), "", col.x, col.y, col.z, col.w);
+                }
+                ImGui::LogFinish();
+            }
+            ImGui::SameLine(); ImGui::SetNextItemWidth(120); ImGui::Combo("##output_type", &output_dest, "To Clipboard\0To TTY\0");
+            ImGui::SameLine(); ImGui::Checkbox("Only Modified Colors", &output_only_modified);
+
+            static ImGuiTextFilter filter;
+            filter.Draw("Filter colors", ImGui::GetFontSize() * 16);
+
+            static ImGuiColorEditFlags alpha_flags = 0;
+            if (ImGui::RadioButton("Opaque", alpha_flags == ImGuiColorEditFlags_None))             { alpha_flags = ImGuiColorEditFlags_None; } ImGui::SameLine();
+            if (ImGui::RadioButton("Alpha",  alpha_flags == ImGuiColorEditFlags_AlphaPreview))     { alpha_flags = ImGuiColorEditFlags_AlphaPreview; } ImGui::SameLine();
+            if (ImGui::RadioButton("Both",   alpha_flags == ImGuiColorEditFlags_AlphaPreviewHalf)) { alpha_flags = ImGuiColorEditFlags_AlphaPreviewHalf; } ImGui::SameLine();
+            HelpMarker(
+                "In the color list:\n"
+                "Left-click on color square to open color picker,\n"
+                "Right-click to open edit options menu.");
+
+            ImGui::BeginChild("##colors", ImVec2(0, 0), true, ImGuiWindowFlags_AlwaysVerticalScrollbar | ImGuiWindowFlags_AlwaysHorizontalScrollbar | ImGuiWindowFlags_NavFlattened);
+            ImGui::PushItemWidth(-160);
+            for (int i = 0; i < ImGuiCol_COUNT; i++)
+            {
+                const char* name = ImGui::GetStyleColorName(i);
+                if (!filter.PassFilter(name))
+                    continue;
+                ImGui::PushID(i);
+                ImGui::ColorEdit4("##color", (float*)&style.Colors[i], ImGuiColorEditFlags_AlphaBar | alpha_flags);
+                if (memcmp(&style.Colors[i], &ref->Colors[i], sizeof(ImVec4)) != 0)
+                {
+                    // Tips: in a real user application, you may want to merge and use an icon font into the main font,
+                    // so instead of "Save"/"Revert" you'd use icons!
+                    // Read the FAQ and docs/FONTS.md about using icon fonts. It's really easy and super convenient!
+                    ImGui::SameLine(0.0f, style.ItemInnerSpacing.x); if (ImGui::Button("Save")) { ref->Colors[i] = style.Colors[i]; }
+                    ImGui::SameLine(0.0f, style.ItemInnerSpacing.x); if (ImGui::Button("Revert")) { style.Colors[i] = ref->Colors[i]; }
+                }
+                ImGui::SameLine(0.0f, style.ItemInnerSpacing.x);
+                ImGui::TextUnformatted(name);
+                ImGui::PopID();
+            }
+            ImGui::PopItemWidth();
+            ImGui::EndChild();
+
+            ImGui::EndTabItem();
+        }
+
+        if (ImGui::BeginTabItem("Fonts"))
+        {
+            ImGuiIO& io = ImGui::GetIO();
+            ImFontAtlas* atlas = io.Fonts;
+            HelpMarker("Read FAQ and docs/FONTS.md for details on font loading.");
+            ImGui::ShowFontAtlas(atlas);
+
+            // Post-baking font scaling. Note that this is NOT the nice way of scaling fonts, read below.
+            // (we enforce hard clamping manually as by default DragFloat/SliderFloat allows CTRL+Click text to get out of bounds).
+            const float MIN_SCALE = 0.3f;
+            const float MAX_SCALE = 2.0f;
+            HelpMarker(
+                "Those are old settings provided for convenience.\n"
+                "However, the _correct_ way of scaling your UI is currently to reload your font at the designed size, "
+                "rebuild the font atlas, and call style.ScaleAllSizes() on a reference ImGuiStyle structure.\n"
+                "Using those settings here will give you poor quality results.");
+            static float window_scale = 1.0f;
+            ImGui::PushItemWidth(ImGui::GetFontSize() * 8);
+            if (ImGui::DragFloat("window scale", &window_scale, 0.005f, MIN_SCALE, MAX_SCALE, "%.2f", ImGuiSliderFlags_AlwaysClamp)) // Scale only this window
+                ImGui::SetWindowFontScale(window_scale);
+            ImGui::DragFloat("global scale", &io.FontGlobalScale, 0.005f, MIN_SCALE, MAX_SCALE, "%.2f", ImGuiSliderFlags_AlwaysClamp); // Scale everything
+            ImGui::PopItemWidth();
+
+            ImGui::EndTabItem();
+        }
+
+        if (ImGui::BeginTabItem("Rendering"))
+        {
+            ImGui::Checkbox("Anti-aliased lines", &style.AntiAliasedLines);
+            ImGui::SameLine();
+            HelpMarker("When disabling anti-aliasing lines, you'll probably want to disable borders in your style as well.");
+
+            ImGui::Checkbox("Anti-aliased lines use texture", &style.AntiAliasedLinesUseTex);
+            ImGui::SameLine();
+            HelpMarker("Faster lines using texture data. Require backend to render with bilinear filtering (not point/nearest filtering).");
+
+            ImGui::Checkbox("Anti-aliased fill", &style.AntiAliasedFill);
+            ImGui::PushItemWidth(ImGui::GetFontSize() * 8);
+            ImGui::DragFloat("Curve Tessellation Tolerance", &style.CurveTessellationTol, 0.02f, 0.10f, 10.0f, "%.2f");
+            if (style.CurveTessellationTol < 0.10f) style.CurveTessellationTol = 0.10f;
+
+            // When editing the "Circle Segment Max Error" value, draw a preview of its effect on auto-tessellated circles.
+            ImGui::DragFloat("Circle Tessellation Max Error", &style.CircleTessellationMaxError , 0.005f, 0.10f, 5.0f, "%.2f", ImGuiSliderFlags_AlwaysClamp);
+            if (ImGui::IsItemActive())
+            {
+                ImGui::SetNextWindowPos(ImGui::GetCursorScreenPos());
+                ImGui::BeginTooltip();
+                ImGui::TextUnformatted("(R = radius, N = number of segments)");
+                ImGui::Spacing();
+                ImDrawList* draw_list = ImGui::GetWindowDrawList();
+                const float min_widget_width = ImGui::CalcTextSize("N: MMM\nR: MMM").x;
+                for (int n = 0; n < 8; n++)
+                {
+                    const float RAD_MIN = 5.0f;
+                    const float RAD_MAX = 70.0f;
+                    const float rad = RAD_MIN + (RAD_MAX - RAD_MIN) * (float)n / (8.0f - 1.0f);
+
+                    ImGui::BeginGroup();
+
+                    ImGui::Text("R: %.f\nN: %d", rad, draw_list->_CalcCircleAutoSegmentCount(rad));
+
+                    const float canvas_width = IM_MAX(min_widget_width, rad * 2.0f);
+                    const float offset_x     = floorf(canvas_width * 0.5f);
+                    const float offset_y     = floorf(RAD_MAX);
+
+                    const ImVec2 p1 = ImGui::GetCursorScreenPos();
+                    draw_list->AddCircle(ImVec2(p1.x + offset_x, p1.y + offset_y), rad, ImGui::GetColorU32(ImGuiCol_Text));
+                    ImGui::Dummy(ImVec2(canvas_width, RAD_MAX * 2));
+
+                    /*
+                    const ImVec2 p2 = ImGui::GetCursorScreenPos();
+                    draw_list->AddCircleFilled(ImVec2(p2.x + offset_x, p2.y + offset_y), rad, ImGui::GetColorU32(ImGuiCol_Text));
+                    ImGui::Dummy(ImVec2(canvas_width, RAD_MAX * 2));
+                    */
+
+                    ImGui::EndGroup();
+                    ImGui::SameLine();
+                }
+                ImGui::EndTooltip();
+            }
+            ImGui::SameLine();
+            HelpMarker("When drawing circle primitives with \"num_segments == 0\" tesselation will be calculated automatically.");
+
+            ImGui::DragFloat("Global Alpha", &style.Alpha, 0.005f, 0.20f, 1.0f, "%.2f"); // Not exposing zero here so user doesn't "lose" the UI (zero alpha clips all widgets). But application code could have a toggle to switch between zero and non-zero.
+            ImGui::DragFloat("Disabled Alpha", &style.DisabledAlpha, 0.005f, 0.0f, 1.0f, "%.2f"); ImGui::SameLine(); HelpMarker("Additional alpha multiplier for disabled items (multiply over current value of Alpha).");
+            ImGui::PopItemWidth();
+
+            ImGui::EndTabItem();
+        }
+
+        ImGui::EndTabBar();
+    }
+
+    ImGui::PopItemWidth();
+}
+
+//-----------------------------------------------------------------------------
+// [SECTION] Example App: Main Menu Bar / ShowExampleAppMainMenuBar()
+//-----------------------------------------------------------------------------
+// - ShowExampleAppMainMenuBar()
+// - ShowExampleMenuFile()
+//-----------------------------------------------------------------------------
+
+// Demonstrate creating a "main" fullscreen menu bar and populating it.
+// Note the difference between BeginMainMenuBar() and BeginMenuBar():
+// - BeginMenuBar() = menu-bar inside current window (which needs the ImGuiWindowFlags_MenuBar flag!)
+// - BeginMainMenuBar() = helper to create menu-bar-sized window at the top of the main viewport + call BeginMenuBar() into it.
+static void ShowExampleAppMainMenuBar()
+{
+    if (ImGui::BeginMainMenuBar())
+    {
+        if (ImGui::BeginMenu("File"))
+        {
+            ShowExampleMenuFile();
+            ImGui::EndMenu();
+        }
+        if (ImGui::BeginMenu("Edit"))
+        {
+            if (ImGui::MenuItem("Undo", "CTRL+Z")) {}
+            if (ImGui::MenuItem("Redo", "CTRL+Y", false, false)) {}  // Disabled item
+            ImGui::Separator();
+            if (ImGui::MenuItem("Cut", "CTRL+X")) {}
+            if (ImGui::MenuItem("Copy", "CTRL+C")) {}
+            if (ImGui::MenuItem("Paste", "CTRL+V")) {}
+            ImGui::EndMenu();
+        }
+        ImGui::EndMainMenuBar();
+    }
+}
+
+// Note that shortcuts are currently provided for display only
+// (future version will add explicit flags to BeginMenu() to request processing shortcuts)
+static void ShowExampleMenuFile()
+{
+    IMGUI_DEMO_MARKER("Examples/Menu");
+    ImGui::MenuItem("(demo menu)", NULL, false, false);
+    if (ImGui::MenuItem("New")) {}
+    if (ImGui::MenuItem("Open", "Ctrl+O")) {}
+    if (ImGui::BeginMenu("Open Recent"))
+    {
+        ImGui::MenuItem("fish_hat.c");
+        ImGui::MenuItem("fish_hat.inl");
+        ImGui::MenuItem("fish_hat.h");
+        if (ImGui::BeginMenu("More.."))
+        {
+            ImGui::MenuItem("Hello");
+            ImGui::MenuItem("Sailor");
+            if (ImGui::BeginMenu("Recurse.."))
+            {
+                ShowExampleMenuFile();
+                ImGui::EndMenu();
+            }
+            ImGui::EndMenu();
+        }
+        ImGui::EndMenu();
+    }
+    if (ImGui::MenuItem("Save", "Ctrl+S")) {}
+    if (ImGui::MenuItem("Save As..")) {}
+
+    ImGui::Separator();
+    IMGUI_DEMO_MARKER("Examples/Menu/Options");
+    if (ImGui::BeginMenu("Options"))
+    {
+        static bool enabled = true;
+        ImGui::MenuItem("Enabled", "", &enabled);
+        ImGui::BeginChild("child", ImVec2(0, 60), true);
+        for (int i = 0; i < 10; i++)
+            ImGui::Text("Scrolling Text %d", i);
+        ImGui::EndChild();
+        static float f = 0.5f;
+        static int n = 0;
+        ImGui::SliderFloat("Value", &f, 0.0f, 1.0f);
+        ImGui::InputFloat("Input", &f, 0.1f);
+        ImGui::Combo("Combo", &n, "Yes\0No\0Maybe\0\0");
+        ImGui::EndMenu();
+    }
+
+    IMGUI_DEMO_MARKER("Examples/Menu/Colors");
+    if (ImGui::BeginMenu("Colors"))
+    {
+        float sz = ImGui::GetTextLineHeight();
+        for (int i = 0; i < ImGuiCol_COUNT; i++)
+        {
+            const char* name = ImGui::GetStyleColorName((ImGuiCol)i);
+            ImVec2 p = ImGui::GetCursorScreenPos();
+            ImGui::GetWindowDrawList()->AddRectFilled(p, ImVec2(p.x + sz, p.y + sz), ImGui::GetColorU32((ImGuiCol)i));
+            ImGui::Dummy(ImVec2(sz, sz));
+            ImGui::SameLine();
+            ImGui::MenuItem(name);
+        }
+        ImGui::EndMenu();
+    }
+
+    // Here we demonstrate appending again to the "Options" menu (which we already created above)
+    // Of course in this demo it is a little bit silly that this function calls BeginMenu("Options") twice.
+    // In a real code-base using it would make senses to use this feature from very different code locations.
+    if (ImGui::BeginMenu("Options")) // <-- Append!
+    {
+        IMGUI_DEMO_MARKER("Examples/Menu/Append to an existing menu");
+        static bool b = true;
+        ImGui::Checkbox("SomeOption", &b);
+        ImGui::EndMenu();
+    }
+
+    if (ImGui::BeginMenu("Disabled", false)) // Disabled
+    {
+        IM_ASSERT(0);
+    }
+    if (ImGui::MenuItem("Checked", NULL, true)) {}
+    if (ImGui::MenuItem("Quit", "Alt+F4")) {}
+}
+
+//-----------------------------------------------------------------------------
+// [SECTION] Example App: Debug Console / ShowExampleAppConsole()
+//-----------------------------------------------------------------------------
+
+// Demonstrate creating a simple console window, with scrolling, filtering, completion and history.
+// For the console example, we are using a more C++ like approach of declaring a class to hold both data and functions.
+struct ExampleAppConsole
+{
+    char                  InputBuf[256];
+    ImVector<char*>       Items;
+    ImVector<const char*> Commands;
+    ImVector<char*>       History;
+    int                   HistoryPos;    // -1: new line, 0..History.Size-1 browsing history.
+    ImGuiTextFilter       Filter;
+    bool                  AutoScroll;
+    bool                  ScrollToBottom;
+
+    ExampleAppConsole()
+    {
+        IMGUI_DEMO_MARKER("Examples/Console");
+        ClearLog();
+        memset(InputBuf, 0, sizeof(InputBuf));
+        HistoryPos = -1;
+
+        // "CLASSIFY" is here to provide the test case where "C"+[tab] completes to "CL" and display multiple matches.
+        Commands.push_back("HELP");
+        Commands.push_back("HISTORY");
+        Commands.push_back("CLEAR");
+        Commands.push_back("CLASSIFY");
+        AutoScroll = true;
+        ScrollToBottom = false;
+        AddLog("Welcome to Dear ImGui!");
+    }
+    ~ExampleAppConsole()
+    {
+        ClearLog();
+        for (int i = 0; i < History.Size; i++)
+            free(History[i]);
+    }
+
+    // Portable helpers
+    static int   Stricmp(const char* s1, const char* s2)         { int d; while ((d = toupper(*s2) - toupper(*s1)) == 0 && *s1) { s1++; s2++; } return d; }
+    static int   Strnicmp(const char* s1, const char* s2, int n) { int d = 0; while (n > 0 && (d = toupper(*s2) - toupper(*s1)) == 0 && *s1) { s1++; s2++; n--; } return d; }
+    static char* Strdup(const char* s)                           { IM_ASSERT(s); size_t len = strlen(s) + 1; void* buf = malloc(len); IM_ASSERT(buf); return (char*)memcpy(buf, (const void*)s, len); }
+    static void  Strtrim(char* s)                                { char* str_end = s + strlen(s); while (str_end > s && str_end[-1] == ' ') str_end--; *str_end = 0; }
+
+    void    ClearLog()
+    {
+        for (int i = 0; i < Items.Size; i++)
+            free(Items[i]);
+        Items.clear();
+    }
+
+    void    AddLog(const char* fmt, ...) IM_FMTARGS(2)
+    {
+        // FIXME-OPT
+        char buf[1024];
+        va_list args;
+        va_start(args, fmt);
+        vsnprintf(buf, IM_ARRAYSIZE(buf), fmt, args);
+        buf[IM_ARRAYSIZE(buf)-1] = 0;
+        va_end(args);
+        Items.push_back(Strdup(buf));
+    }
+
+    void    Draw(const char* title, bool* p_open)
+    {
+        ImGui::SetNextWindowSize(ImVec2(520, 600), ImGuiCond_FirstUseEver);
+        if (!ImGui::Begin(title, p_open))
+        {
+            ImGui::End();
+            return;
+        }
+
+        // As a specific feature guaranteed by the library, after calling Begin() the last Item represent the title bar.
+        // So e.g. IsItemHovered() will return true when hovering the title bar.
+        // Here we create a context menu only available from the title bar.
+        if (ImGui::BeginPopupContextItem())
+        {
+            if (ImGui::MenuItem("Close Console"))
+                *p_open = false;
+            ImGui::EndPopup();
+        }
+
+        ImGui::TextWrapped(
+            "This example implements a console with basic coloring, completion (TAB key) and history (Up/Down keys). A more elaborate "
+            "implementation may want to store entries along with extra data such as timestamp, emitter, etc.");
+        ImGui::TextWrapped("Enter 'HELP' for help.");
+
+        // TODO: display items starting from the bottom
+
+        if (ImGui::SmallButton("Add Debug Text"))  { AddLog("%d some text", Items.Size); AddLog("some more text"); AddLog("display very important message here!"); }
+        ImGui::SameLine();
+        if (ImGui::SmallButton("Add Debug Error")) { AddLog("[error] something went wrong"); }
+        ImGui::SameLine();
+        if (ImGui::SmallButton("Clear"))           { ClearLog(); }
+        ImGui::SameLine();
+        bool copy_to_clipboard = ImGui::SmallButton("Copy");
+        //static float t = 0.0f; if (ImGui::GetTime() - t > 0.02f) { t = ImGui::GetTime(); AddLog("Spam %f", t); }
+
+        ImGui::Separator();
+
+        // Options menu
+        if (ImGui::BeginPopup("Options"))
+        {
+            ImGui::Checkbox("Auto-scroll", &AutoScroll);
+            ImGui::EndPopup();
+        }
+
+        // Options, Filter
+        if (ImGui::Button("Options"))
+            ImGui::OpenPopup("Options");
+        ImGui::SameLine();
+        Filter.Draw("Filter (\"incl,-excl\") (\"error\")", 180);
+        ImGui::Separator();
+
+        // Reserve enough left-over height for 1 separator + 1 input text
+        const float footer_height_to_reserve = ImGui::GetStyle().ItemSpacing.y + ImGui::GetFrameHeightWithSpacing();
+        ImGui::BeginChild("ScrollingRegion", ImVec2(0, -footer_height_to_reserve), false, ImGuiWindowFlags_HorizontalScrollbar);
+        if (ImGui::BeginPopupContextWindow())
+        {
+            if (ImGui::Selectable("Clear")) ClearLog();
+            ImGui::EndPopup();
+        }
+
+        // Display every line as a separate entry so we can change their color or add custom widgets.
+        // If you only want raw text you can use ImGui::TextUnformatted(log.begin(), log.end());
+        // NB- if you have thousands of entries this approach may be too inefficient and may require user-side clipping
+        // to only process visible items. The clipper will automatically measure the height of your first item and then
+        // "seek" to display only items in the visible area.
+        // To use the clipper we can replace your standard loop:
+        //      for (int i = 0; i < Items.Size; i++)
+        //   With:
+        //      ImGuiListClipper clipper;
+        //      clipper.Begin(Items.Size);
+        //      while (clipper.Step())
+        //         for (int i = clipper.DisplayStart; i < clipper.DisplayEnd; i++)
+        // - That your items are evenly spaced (same height)
+        // - That you have cheap random access to your elements (you can access them given their index,
+        //   without processing all the ones before)
+        // You cannot this code as-is if a filter is active because it breaks the 'cheap random-access' property.
+        // We would need random-access on the post-filtered list.
+        // A typical application wanting coarse clipping and filtering may want to pre-compute an array of indices
+        // or offsets of items that passed the filtering test, recomputing this array when user changes the filter,
+        // and appending newly elements as they are inserted. This is left as a task to the user until we can manage
+        // to improve this example code!
+        // If your items are of variable height:
+        // - Split them into same height items would be simpler and facilitate random-seeking into your list.
+        // - Consider using manual call to IsRectVisible() and skipping extraneous decoration from your items.
+        ImGui::PushStyleVar(ImGuiStyleVar_ItemSpacing, ImVec2(4, 1)); // Tighten spacing
+        if (copy_to_clipboard)
+            ImGui::LogToClipboard();
+        for (int i = 0; i < Items.Size; i++)
+        {
+            const char* item = Items[i];
+            if (!Filter.PassFilter(item))
+                continue;
+
+            // Normally you would store more information in your item than just a string.
+            // (e.g. make Items[] an array of structure, store color/type etc.)
+            ImVec4 color;
+            bool has_color = false;
+            if (strstr(item, "[error]"))          { color = ImVec4(1.0f, 0.4f, 0.4f, 1.0f); has_color = true; }
+            else if (strncmp(item, "# ", 2) == 0) { color = ImVec4(1.0f, 0.8f, 0.6f, 1.0f); has_color = true; }
+            if (has_color)
+                ImGui::PushStyleColor(ImGuiCol_Text, color);
+            ImGui::TextUnformatted(item);
+            if (has_color)
+                ImGui::PopStyleColor();
+        }
+        if (copy_to_clipboard)
+            ImGui::LogFinish();
+
+        if (ScrollToBottom || (AutoScroll && ImGui::GetScrollY() >= ImGui::GetScrollMaxY()))
+            ImGui::SetScrollHereY(1.0f);
+        ScrollToBottom = false;
+
+        ImGui::PopStyleVar();
+        ImGui::EndChild();
+        ImGui::Separator();
+
+        // Command-line
+        bool reclaim_focus = false;
+        ImGuiInputTextFlags input_text_flags = ImGuiInputTextFlags_EnterReturnsTrue | ImGuiInputTextFlags_CallbackCompletion | ImGuiInputTextFlags_CallbackHistory;
+        if (ImGui::InputText("Input", InputBuf, IM_ARRAYSIZE(InputBuf), input_text_flags, &TextEditCallbackStub, (void*)this))
+        {
+            char* s = InputBuf;
+            Strtrim(s);
+            if (s[0])
+                ExecCommand(s);
+            strcpy(s, "");
+            reclaim_focus = true;
+        }
+
+        // Auto-focus on window apparition
+        ImGui::SetItemDefaultFocus();
+        if (reclaim_focus)
+            ImGui::SetKeyboardFocusHere(-1); // Auto focus previous widget
+
+        ImGui::End();
+    }
+
+    void    ExecCommand(const char* command_line)
+    {
+        AddLog("# %s\n", command_line);
+
+        // Insert into history. First find match and delete it so it can be pushed to the back.
+        // This isn't trying to be smart or optimal.
+        HistoryPos = -1;
+        for (int i = History.Size - 1; i >= 0; i--)
+            if (Stricmp(History[i], command_line) == 0)
+            {
+                free(History[i]);
+                History.erase(History.begin() + i);
+                break;
+            }
+        History.push_back(Strdup(command_line));
+
+        // Process command
+        if (Stricmp(command_line, "CLEAR") == 0)
+        {
+            ClearLog();
+        }
+        else if (Stricmp(command_line, "HELP") == 0)
+        {
+            AddLog("Commands:");
+            for (int i = 0; i < Commands.Size; i++)
+                AddLog("- %s", Commands[i]);
+        }
+        else if (Stricmp(command_line, "HISTORY") == 0)
+        {
+            int first = History.Size - 10;
+            for (int i = first > 0 ? first : 0; i < History.Size; i++)
+                AddLog("%3d: %s\n", i, History[i]);
+        }
+        else
+        {
+            AddLog("Unknown command: '%s'\n", command_line);
+        }
+
+        // On command input, we scroll to bottom even if AutoScroll==false
+        ScrollToBottom = true;
+    }
+
+    // In C++11 you'd be better off using lambdas for this sort of forwarding callbacks
+    static int TextEditCallbackStub(ImGuiInputTextCallbackData* data)
+    {
+        ExampleAppConsole* console = (ExampleAppConsole*)data->UserData;
+        return console->TextEditCallback(data);
+    }
+
+    int     TextEditCallback(ImGuiInputTextCallbackData* data)
+    {
+        //AddLog("cursor: %d, selection: %d-%d", data->CursorPos, data->SelectionStart, data->SelectionEnd);
+        switch (data->EventFlag)
+        {
+        case ImGuiInputTextFlags_CallbackCompletion:
+            {
+                // Example of TEXT COMPLETION
+
+                // Locate beginning of current word
+                const char* word_end = data->Buf + data->CursorPos;
+                const char* word_start = word_end;
+                while (word_start > data->Buf)
+                {
+                    const char c = word_start[-1];
+                    if (c == ' ' || c == '\t' || c == ',' || c == ';')
+                        break;
+                    word_start--;
+                }
+
+                // Build a list of candidates
+                ImVector<const char*> candidates;
+                for (int i = 0; i < Commands.Size; i++)
+                    if (Strnicmp(Commands[i], word_start, (int)(word_end - word_start)) == 0)
+                        candidates.push_back(Commands[i]);
+
+                if (candidates.Size == 0)
+                {
+                    // No match
+                    AddLog("No match for \"%.*s\"!\n", (int)(word_end - word_start), word_start);
+                }
+                else if (candidates.Size == 1)
+                {
+                    // Single match. Delete the beginning of the word and replace it entirely so we've got nice casing.
+                    data->DeleteChars((int)(word_start - data->Buf), (int)(word_end - word_start));
+                    data->InsertChars(data->CursorPos, candidates[0]);
+                    data->InsertChars(data->CursorPos, " ");
+                }
+                else
+                {
+                    // Multiple matches. Complete as much as we can..
+                    // So inputing "C"+Tab will complete to "CL" then display "CLEAR" and "CLASSIFY" as matches.
+                    int match_len = (int)(word_end - word_start);
+                    for (;;)
+                    {
+                        int c = 0;
+                        bool all_candidates_matches = true;
+                        for (int i = 0; i < candidates.Size && all_candidates_matches; i++)
+                            if (i == 0)
+                                c = toupper(candidates[i][match_len]);
+                            else if (c == 0 || c != toupper(candidates[i][match_len]))
+                                all_candidates_matches = false;
+                        if (!all_candidates_matches)
+                            break;
+                        match_len++;
+                    }
+
+                    if (match_len > 0)
+                    {
+                        data->DeleteChars((int)(word_start - data->Buf), (int)(word_end - word_start));
+                        data->InsertChars(data->CursorPos, candidates[0], candidates[0] + match_len);
+                    }
+
+                    // List matches
+                    AddLog("Possible matches:\n");
+                    for (int i = 0; i < candidates.Size; i++)
+                        AddLog("- %s\n", candidates[i]);
+                }
+
+                break;
+            }
+        case ImGuiInputTextFlags_CallbackHistory:
+            {
+                // Example of HISTORY
+                const int prev_history_pos = HistoryPos;
+                if (data->EventKey == ImGuiKey_UpArrow)
+                {
+                    if (HistoryPos == -1)
+                        HistoryPos = History.Size - 1;
+                    else if (HistoryPos > 0)
+                        HistoryPos--;
+                }
+                else if (data->EventKey == ImGuiKey_DownArrow)
+                {
+                    if (HistoryPos != -1)
+                        if (++HistoryPos >= History.Size)
+                            HistoryPos = -1;
+                }
+
+                // A better implementation would preserve the data on the current input line along with cursor position.
+                if (prev_history_pos != HistoryPos)
+                {
+                    const char* history_str = (HistoryPos >= 0) ? History[HistoryPos] : "";
+                    data->DeleteChars(0, data->BufTextLen);
+                    data->InsertChars(0, history_str);
+                }
+            }
+        }
+        return 0;
+    }
+};
+
+static void ShowExampleAppConsole(bool* p_open)
+{
+    static ExampleAppConsole console;
+    console.Draw("Example: Console", p_open);
+}
+
+//-----------------------------------------------------------------------------
+// [SECTION] Example App: Debug Log / ShowExampleAppLog()
+//-----------------------------------------------------------------------------
+
+// Usage:
+//  static ExampleAppLog my_log;
+//  my_log.AddLog("Hello %d world\n", 123);
+//  my_log.Draw("title");
+struct ExampleAppLog
+{
+    ImGuiTextBuffer     Buf;
+    ImGuiTextFilter     Filter;
+    ImVector<int>       LineOffsets; // Index to lines offset. We maintain this with AddLog() calls.
+    bool                AutoScroll;  // Keep scrolling if already at the bottom.
+
+    ExampleAppLog()
+    {
+        AutoScroll = true;
+        Clear();
+    }
+
+    void    Clear()
+    {
+        Buf.clear();
+        LineOffsets.clear();
+        LineOffsets.push_back(0);
+    }
+
+    void    AddLog(const char* fmt, ...) IM_FMTARGS(2)
+    {
+        int old_size = Buf.size();
+        va_list args;
+        va_start(args, fmt);
+        Buf.appendfv(fmt, args);
+        va_end(args);
+        for (int new_size = Buf.size(); old_size < new_size; old_size++)
+            if (Buf[old_size] == '\n')
+                LineOffsets.push_back(old_size + 1);
+    }
+
+    void    Draw(const char* title, bool* p_open = NULL)
+    {
+        if (!ImGui::Begin(title, p_open))
+        {
+            ImGui::End();
+            return;
+        }
+
+        // Options menu
+        if (ImGui::BeginPopup("Options"))
+        {
+            ImGui::Checkbox("Auto-scroll", &AutoScroll);
+            ImGui::EndPopup();
+        }
+
+        // Main window
+        if (ImGui::Button("Options"))
+            ImGui::OpenPopup("Options");
+        ImGui::SameLine();
+        bool clear = ImGui::Button("Clear");
+        ImGui::SameLine();
+        bool copy = ImGui::Button("Copy");
+        ImGui::SameLine();
+        Filter.Draw("Filter", -100.0f);
+
+        ImGui::Separator();
+        ImGui::BeginChild("scrolling", ImVec2(0, 0), false, ImGuiWindowFlags_HorizontalScrollbar);
+
+        if (clear)
+            Clear();
+        if (copy)
+            ImGui::LogToClipboard();
+
+        ImGui::PushStyleVar(ImGuiStyleVar_ItemSpacing, ImVec2(0, 0));
+        const char* buf = Buf.begin();
+        const char* buf_end = Buf.end();
+        if (Filter.IsActive())
+        {
+            // In this example we don't use the clipper when Filter is enabled.
+            // This is because we don't have a random access on the result on our filter.
+            // A real application processing logs with ten of thousands of entries may want to store the result of
+            // search/filter.. especially if the filtering function is not trivial (e.g. reg-exp).
+            for (int line_no = 0; line_no < LineOffsets.Size; line_no++)
+            {
+                const char* line_start = buf + LineOffsets[line_no];
+                const char* line_end = (line_no + 1 < LineOffsets.Size) ? (buf + LineOffsets[line_no + 1] - 1) : buf_end;
+                if (Filter.PassFilter(line_start, line_end))
+                    ImGui::TextUnformatted(line_start, line_end);
+            }
+        }
+        else
+        {
+            // The simplest and easy way to display the entire buffer:
+            //   ImGui::TextUnformatted(buf_begin, buf_end);
+            // And it'll just work. TextUnformatted() has specialization for large blob of text and will fast-forward
+            // to skip non-visible lines. Here we instead demonstrate using the clipper to only process lines that are
+            // within the visible area.
+            // If you have tens of thousands of items and their processing cost is non-negligible, coarse clipping them
+            // on your side is recommended. Using ImGuiListClipper requires
+            // - A) random access into your data
+            // - B) items all being the  same height,
+            // both of which we can handle since we an array pointing to the beginning of each line of text.
+            // When using the filter (in the block of code above) we don't have random access into the data to display
+            // anymore, which is why we don't use the clipper. Storing or skimming through the search result would make
+            // it possible (and would be recommended if you want to search through tens of thousands of entries).
+            ImGuiListClipper clipper;
+            clipper.Begin(LineOffsets.Size);
+            while (clipper.Step())
+            {
+                for (int line_no = clipper.DisplayStart; line_no < clipper.DisplayEnd; line_no++)
+                {
+                    const char* line_start = buf + LineOffsets[line_no];
+                    const char* line_end = (line_no + 1 < LineOffsets.Size) ? (buf + LineOffsets[line_no + 1] - 1) : buf_end;
+                    ImGui::TextUnformatted(line_start, line_end);
+                }
+            }
+            clipper.End();
+        }
+        ImGui::PopStyleVar();
+
+        if (AutoScroll && ImGui::GetScrollY() >= ImGui::GetScrollMaxY())
+            ImGui::SetScrollHereY(1.0f);
+
+        ImGui::EndChild();
+        ImGui::End();
+    }
+};
+
+// Demonstrate creating a simple log window with basic filtering.
+static void ShowExampleAppLog(bool* p_open)
+{
+    static ExampleAppLog log;
+
+    // For the demo: add a debug button _BEFORE_ the normal log window contents
+    // We take advantage of a rarely used feature: multiple calls to Begin()/End() are appending to the _same_ window.
+    // Most of the contents of the window will be added by the log.Draw() call.
+    ImGui::SetNextWindowSize(ImVec2(500, 400), ImGuiCond_FirstUseEver);
+    ImGui::Begin("Example: Log", p_open);
+    IMGUI_DEMO_MARKER("Examples/Log");
+    if (ImGui::SmallButton("[Debug] Add 5 entries"))
+    {
+        static int counter = 0;
+        const char* categories[3] = { "info", "warn", "error" };
+        const char* words[] = { "Bumfuzzled", "Cattywampus", "Snickersnee", "Abibliophobia", "Absquatulate", "Nincompoop", "Pauciloquent" };
+        for (int n = 0; n < 5; n++)
+        {
+            const char* category = categories[counter % IM_ARRAYSIZE(categories)];
+            const char* word = words[counter % IM_ARRAYSIZE(words)];
+            log.AddLog("[%05d] [%s] Hello, current time is %.1f, here's a word: '%s'\n",
+                ImGui::GetFrameCount(), category, ImGui::GetTime(), word);
+            counter++;
+        }
+    }
+    ImGui::End();
+
+    // Actually call in the regular Log helper (which will Begin() into the same window as we just did)
+    log.Draw("Example: Log", p_open);
+}
+
+//-----------------------------------------------------------------------------
+// [SECTION] Example App: Simple Layout / ShowExampleAppLayout()
+//-----------------------------------------------------------------------------
+
+// Demonstrate create a window with multiple child windows.
+static void ShowExampleAppLayout(bool* p_open)
+{
+    ImGui::SetNextWindowSize(ImVec2(500, 440), ImGuiCond_FirstUseEver);
+    if (ImGui::Begin("Example: Simple layout", p_open, ImGuiWindowFlags_MenuBar))
+    {
+        IMGUI_DEMO_MARKER("Examples/Simple layout");
+        if (ImGui::BeginMenuBar())
+        {
+            if (ImGui::BeginMenu("File"))
+            {
+                if (ImGui::MenuItem("Close")) *p_open = false;
+                ImGui::EndMenu();
+            }
+            ImGui::EndMenuBar();
+        }
+
+        // Left
+        static int selected = 0;
+        {
+            ImGui::BeginChild("left pane", ImVec2(150, 0), true);
+            for (int i = 0; i < 100; i++)
+            {
+                // FIXME: Good candidate to use ImGuiSelectableFlags_SelectOnNav
+                char label[128];
+                sprintf(label, "MyObject %d", i);
+                if (ImGui::Selectable(label, selected == i))
+                    selected = i;
+            }
+            ImGui::EndChild();
+        }
+        ImGui::SameLine();
+
+        // Right
+        {
+            ImGui::BeginGroup();
+            ImGui::BeginChild("item view", ImVec2(0, -ImGui::GetFrameHeightWithSpacing())); // Leave room for 1 line below us
+            ImGui::Text("MyObject: %d", selected);
+            ImGui::Separator();
+            if (ImGui::BeginTabBar("##Tabs", ImGuiTabBarFlags_None))
+            {
+                if (ImGui::BeginTabItem("Description"))
+                {
+                    ImGui::TextWrapped("Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. ");
+                    ImGui::EndTabItem();
+                }
+                if (ImGui::BeginTabItem("Details"))
+                {
+                    ImGui::Text("ID: 0123456789");
+                    ImGui::EndTabItem();
+                }
+                ImGui::EndTabBar();
+            }
+            ImGui::EndChild();
+            if (ImGui::Button("Revert")) {}
+            ImGui::SameLine();
+            if (ImGui::Button("Save")) {}
+            ImGui::EndGroup();
+        }
+    }
+    ImGui::End();
+}
+
+//-----------------------------------------------------------------------------
+// [SECTION] Example App: Property Editor / ShowExampleAppPropertyEditor()
+//-----------------------------------------------------------------------------
+
+static void ShowPlaceholderObject(const char* prefix, int uid)
+{
+    // Use object uid as identifier. Most commonly you could also use the object pointer as a base ID.
+    ImGui::PushID(uid);
+
+    // Text and Tree nodes are less high than framed widgets, using AlignTextToFramePadding() we add vertical spacing to make the tree lines equal high.
+    ImGui::TableNextRow();
+    ImGui::TableSetColumnIndex(0);
+    ImGui::AlignTextToFramePadding();
+    bool node_open = ImGui::TreeNode("Object", "%s_%u", prefix, uid);
+    ImGui::TableSetColumnIndex(1);
+    ImGui::Text("my sailor is rich");
+
+    if (node_open)
+    {
+        static float placeholder_members[8] = { 0.0f, 0.0f, 1.0f, 3.1416f, 100.0f, 999.0f };
+        for (int i = 0; i < 8; i++)
+        {
+            ImGui::PushID(i); // Use field index as identifier.
+            if (i < 2)
+            {
+                ShowPlaceholderObject("Child", 424242);
+            }
+            else
+            {
+                // Here we use a TreeNode to highlight on hover (we could use e.g. Selectable as well)
+                ImGui::TableNextRow();
+                ImGui::TableSetColumnIndex(0);
+                ImGui::AlignTextToFramePadding();
+                ImGuiTreeNodeFlags flags = ImGuiTreeNodeFlags_Leaf | ImGuiTreeNodeFlags_NoTreePushOnOpen | ImGuiTreeNodeFlags_Bullet;
+                ImGui::TreeNodeEx("Field", flags, "Field_%d", i);
+
+                ImGui::TableSetColumnIndex(1);
+                ImGui::SetNextItemWidth(-FLT_MIN);
+                if (i >= 5)
+                    ImGui::InputFloat("##value", &placeholder_members[i], 1.0f);
+                else
+                    ImGui::DragFloat("##value", &placeholder_members[i], 0.01f);
+                ImGui::NextColumn();
+            }
+            ImGui::PopID();
+        }
+        ImGui::TreePop();
+    }
+    ImGui::PopID();
+}
+
+// Demonstrate create a simple property editor.
+static void ShowExampleAppPropertyEditor(bool* p_open)
+{
+    ImGui::SetNextWindowSize(ImVec2(430, 450), ImGuiCond_FirstUseEver);
+    if (!ImGui::Begin("Example: Property editor", p_open))
+    {
+        ImGui::End();
+        return;
+    }
+    IMGUI_DEMO_MARKER("Examples/Property Editor");
+
+    HelpMarker(
+        "This example shows how you may implement a property editor using two columns.\n"
+        "All objects/fields data are dummies here.\n"
+        "Remember that in many simple cases, you can use ImGui::SameLine(xxx) to position\n"
+        "your cursor horizontally instead of using the Columns() API.");
+
+    ImGui::PushStyleVar(ImGuiStyleVar_FramePadding, ImVec2(2, 2));
+    if (ImGui::BeginTable("split", 2, ImGuiTableFlags_BordersOuter | ImGuiTableFlags_Resizable))
+    {
+        // Iterate placeholder objects (all the same data)
+        for (int obj_i = 0; obj_i < 4; obj_i++)
+        {
+            ShowPlaceholderObject("Object", obj_i);
+            //ImGui::Separator();
+        }
+        ImGui::EndTable();
+    }
+    ImGui::PopStyleVar();
+    ImGui::End();
+}
+
+//-----------------------------------------------------------------------------
+// [SECTION] Example App: Long Text / ShowExampleAppLongText()
+//-----------------------------------------------------------------------------
+
+// Demonstrate/test rendering huge amount of text, and the incidence of clipping.
+static void ShowExampleAppLongText(bool* p_open)
+{
+    ImGui::SetNextWindowSize(ImVec2(520, 600), ImGuiCond_FirstUseEver);
+    if (!ImGui::Begin("Example: Long text display", p_open))
+    {
+        ImGui::End();
+        return;
+    }
+    IMGUI_DEMO_MARKER("Examples/Long text display");
+
+    static int test_type = 0;
+    static ImGuiTextBuffer log;
+    static int lines = 0;
+    ImGui::Text("Printing unusually long amount of text.");
+    ImGui::Combo("Test type", &test_type,
+        "Single call to TextUnformatted()\0"
+        "Multiple calls to Text(), clipped\0"
+        "Multiple calls to Text(), not clipped (slow)\0");
+    ImGui::Text("Buffer contents: %d lines, %d bytes", lines, log.size());
+    if (ImGui::Button("Clear")) { log.clear(); lines = 0; }
+    ImGui::SameLine();
+    if (ImGui::Button("Add 1000 lines"))
+    {
+        for (int i = 0; i < 1000; i++)
+            log.appendf("%i The quick brown fox jumps over the lazy dog\n", lines + i);
+        lines += 1000;
+    }
+    ImGui::BeginChild("Log");
+    switch (test_type)
+    {
+    case 0:
+        // Single call to TextUnformatted() with a big buffer
+        ImGui::TextUnformatted(log.begin(), log.end());
+        break;
+    case 1:
+        {
+            // Multiple calls to Text(), manually coarsely clipped - demonstrate how to use the ImGuiListClipper helper.
+            ImGui::PushStyleVar(ImGuiStyleVar_ItemSpacing, ImVec2(0, 0));
+            ImGuiListClipper clipper;
+            clipper.Begin(lines);
+            while (clipper.Step())
+                for (int i = clipper.DisplayStart; i < clipper.DisplayEnd; i++)
+                    ImGui::Text("%i The quick brown fox jumps over the lazy dog", i);
+            ImGui::PopStyleVar();
+            break;
+        }
+    case 2:
+        // Multiple calls to Text(), not clipped (slow)
+        ImGui::PushStyleVar(ImGuiStyleVar_ItemSpacing, ImVec2(0, 0));
+        for (int i = 0; i < lines; i++)
+            ImGui::Text("%i The quick brown fox jumps over the lazy dog", i);
+        ImGui::PopStyleVar();
+        break;
+    }
+    ImGui::EndChild();
+    ImGui::End();
+}
+
+//-----------------------------------------------------------------------------
+// [SECTION] Example App: Auto Resize / ShowExampleAppAutoResize()
+//-----------------------------------------------------------------------------
+
+// Demonstrate creating a window which gets auto-resized according to its content.
+static void ShowExampleAppAutoResize(bool* p_open)
+{
+    if (!ImGui::Begin("Example: Auto-resizing window", p_open, ImGuiWindowFlags_AlwaysAutoResize))
+    {
+        ImGui::End();
+        return;
+    }
+    IMGUI_DEMO_MARKER("Examples/Auto-resizing window");
+
+    static int lines = 10;
+    ImGui::TextUnformatted(
+        "Window will resize every-frame to the size of its content.\n"
+        "Note that you probably don't want to query the window size to\n"
+        "output your content because that would create a feedback loop.");
+    ImGui::SliderInt("Number of lines", &lines, 1, 20);
+    for (int i = 0; i < lines; i++)
+        ImGui::Text("%*sThis is line %d", i * 4, "", i); // Pad with space to extend size horizontally
+    ImGui::End();
+}
+
+//-----------------------------------------------------------------------------
+// [SECTION] Example App: Constrained Resize / ShowExampleAppConstrainedResize()
+//-----------------------------------------------------------------------------
+
+// Demonstrate creating a window with custom resize constraints.
+static void ShowExampleAppConstrainedResize(bool* p_open)
+{
+    struct CustomConstraints
+    {
+        // Helper functions to demonstrate programmatic constraints
+        static void Square(ImGuiSizeCallbackData* data) { data->DesiredSize.x = data->DesiredSize.y = IM_MAX(data->DesiredSize.x, data->DesiredSize.y); }
+        static void Step(ImGuiSizeCallbackData* data)   { float step = (float)(int)(intptr_t)data->UserData; data->DesiredSize = ImVec2((int)(data->DesiredSize.x / step + 0.5f) * step, (int)(data->DesiredSize.y / step + 0.5f) * step); }
+    };
+
+    const char* test_desc[] =
+    {
+        "Resize vertical only",
+        "Resize horizontal only",
+        "Width > 100, Height > 100",
+        "Width 400-500",
+        "Height 400-500",
+        "Custom: Always Square",
+        "Custom: Fixed Steps (100)",
+    };
+
+    static bool auto_resize = false;
+    static int type = 0;
+    static int display_lines = 10;
+    if (type == 0) ImGui::SetNextWindowSizeConstraints(ImVec2(-1, 0),    ImVec2(-1, FLT_MAX));      // Vertical only
+    if (type == 1) ImGui::SetNextWindowSizeConstraints(ImVec2(0, -1),    ImVec2(FLT_MAX, -1));      // Horizontal only
+    if (type == 2) ImGui::SetNextWindowSizeConstraints(ImVec2(100, 100), ImVec2(FLT_MAX, FLT_MAX)); // Width > 100, Height > 100
+    if (type == 3) ImGui::SetNextWindowSizeConstraints(ImVec2(400, -1),  ImVec2(500, -1));          // Width 400-500
+    if (type == 4) ImGui::SetNextWindowSizeConstraints(ImVec2(-1, 400),  ImVec2(-1, 500));          // Height 400-500
+    if (type == 5) ImGui::SetNextWindowSizeConstraints(ImVec2(0, 0),     ImVec2(FLT_MAX, FLT_MAX), CustomConstraints::Square);                     // Always Square
+    if (type == 6) ImGui::SetNextWindowSizeConstraints(ImVec2(0, 0),     ImVec2(FLT_MAX, FLT_MAX), CustomConstraints::Step, (void*)(intptr_t)100); // Fixed Step
+
+    ImGuiWindowFlags flags = auto_resize ? ImGuiWindowFlags_AlwaysAutoResize : 0;
+    if (ImGui::Begin("Example: Constrained Resize", p_open, flags))
+    {
+        IMGUI_DEMO_MARKER("Examples/Constrained Resizing window");
+        if (ImGui::Button("200x200")) { ImGui::SetWindowSize(ImVec2(200, 200)); } ImGui::SameLine();
+        if (ImGui::Button("500x500")) { ImGui::SetWindowSize(ImVec2(500, 500)); } ImGui::SameLine();
+        if (ImGui::Button("800x200")) { ImGui::SetWindowSize(ImVec2(800, 200)); }
+        ImGui::SetNextItemWidth(200);
+        ImGui::Combo("Constraint", &type, test_desc, IM_ARRAYSIZE(test_desc));
+        ImGui::SetNextItemWidth(200);
+        ImGui::DragInt("Lines", &display_lines, 0.2f, 1, 100);
+        ImGui::Checkbox("Auto-resize", &auto_resize);
+        for (int i = 0; i < display_lines; i++)
+            ImGui::Text("%*sHello, sailor! Making this line long enough for the example.", i * 4, "");
+    }
+    ImGui::End();
+}
+
+//-----------------------------------------------------------------------------
+// [SECTION] Example App: Simple overlay / ShowExampleAppSimpleOverlay()
+//-----------------------------------------------------------------------------
+
+// Demonstrate creating a simple static window with no decoration
+// + a context-menu to choose which corner of the screen to use.
+static void ShowExampleAppSimpleOverlay(bool* p_open)
+{
+    static int corner = 0;
+    ImGuiIO& io = ImGui::GetIO();
+    ImGuiWindowFlags window_flags = ImGuiWindowFlags_NoDecoration | ImGuiWindowFlags_AlwaysAutoResize | ImGuiWindowFlags_NoSavedSettings | ImGuiWindowFlags_NoFocusOnAppearing | ImGuiWindowFlags_NoNav;
+    if (corner != -1)
+    {
+        const float PAD = 10.0f;
+        const ImGuiViewport* viewport = ImGui::GetMainViewport();
+        ImVec2 work_pos = viewport->WorkPos; // Use work area to avoid menu-bar/task-bar, if any!
+        ImVec2 work_size = viewport->WorkSize;
+        ImVec2 window_pos, window_pos_pivot;
+        window_pos.x = (corner & 1) ? (work_pos.x + work_size.x - PAD) : (work_pos.x + PAD);
+        window_pos.y = (corner & 2) ? (work_pos.y + work_size.y - PAD) : (work_pos.y + PAD);
+        window_pos_pivot.x = (corner & 1) ? 1.0f : 0.0f;
+        window_pos_pivot.y = (corner & 2) ? 1.0f : 0.0f;
+        ImGui::SetNextWindowPos(window_pos, ImGuiCond_Always, window_pos_pivot);
+        window_flags |= ImGuiWindowFlags_NoMove;
+    }
+    ImGui::SetNextWindowBgAlpha(0.35f); // Transparent background
+    if (ImGui::Begin("Example: Simple overlay", p_open, window_flags))
+    {
+        IMGUI_DEMO_MARKER("Examples/Simple Overlay");
+        ImGui::Text("Simple overlay\n" "in the corner of the screen.\n" "(right-click to change position)");
+        ImGui::Separator();
+        if (ImGui::IsMousePosValid())
+            ImGui::Text("Mouse Position: (%.1f,%.1f)", io.MousePos.x, io.MousePos.y);
+        else
+            ImGui::Text("Mouse Position: <invalid>");
+        if (ImGui::BeginPopupContextWindow())
+        {
+            if (ImGui::MenuItem("Custom",       NULL, corner == -1)) corner = -1;
+            if (ImGui::MenuItem("Top-left",     NULL, corner == 0)) corner = 0;
+            if (ImGui::MenuItem("Top-right",    NULL, corner == 1)) corner = 1;
+            if (ImGui::MenuItem("Bottom-left",  NULL, corner == 2)) corner = 2;
+            if (ImGui::MenuItem("Bottom-right", NULL, corner == 3)) corner = 3;
+            if (p_open && ImGui::MenuItem("Close")) *p_open = false;
+            ImGui::EndPopup();
+        }
+    }
+    ImGui::End();
+}
+
+//-----------------------------------------------------------------------------
+// [SECTION] Example App: Fullscreen window / ShowExampleAppFullscreen()
+//-----------------------------------------------------------------------------
+
+// Demonstrate creating a window covering the entire screen/viewport
+static void ShowExampleAppFullscreen(bool* p_open)
+{
+    static bool use_work_area = true;
+    static ImGuiWindowFlags flags = ImGuiWindowFlags_NoDecoration | ImGuiWindowFlags_NoMove | ImGuiWindowFlags_NoSavedSettings;
+
+    // We demonstrate using the full viewport area or the work area (without menu-bars, task-bars etc.)
+    // Based on your use case you may want one of the other.
+    const ImGuiViewport* viewport = ImGui::GetMainViewport();
+    ImGui::SetNextWindowPos(use_work_area ? viewport->WorkPos : viewport->Pos);
+    ImGui::SetNextWindowSize(use_work_area ? viewport->WorkSize : viewport->Size);
+
+    if (ImGui::Begin("Example: Fullscreen window", p_open, flags))
+    {
+        ImGui::Checkbox("Use work area instead of main area", &use_work_area);
+        ImGui::SameLine();
+        HelpMarker("Main Area = entire viewport,\nWork Area = entire viewport minus sections used by the main menu bars, task bars etc.\n\nEnable the main-menu bar in Examples menu to see the difference.");
+
+        ImGui::CheckboxFlags("ImGuiWindowFlags_NoBackground", &flags, ImGuiWindowFlags_NoBackground);
+        ImGui::CheckboxFlags("ImGuiWindowFlags_NoDecoration", &flags, ImGuiWindowFlags_NoDecoration);
+        ImGui::Indent();
+        ImGui::CheckboxFlags("ImGuiWindowFlags_NoTitleBar", &flags, ImGuiWindowFlags_NoTitleBar);
+        ImGui::CheckboxFlags("ImGuiWindowFlags_NoCollapse", &flags, ImGuiWindowFlags_NoCollapse);
+        ImGui::CheckboxFlags("ImGuiWindowFlags_NoScrollbar", &flags, ImGuiWindowFlags_NoScrollbar);
+        ImGui::Unindent();
+
+        if (p_open && ImGui::Button("Close this window"))
+            *p_open = false;
+    }
+    ImGui::End();
+}
+
+//-----------------------------------------------------------------------------
+// [SECTION] Example App: Manipulating Window Titles / ShowExampleAppWindowTitles()
+//-----------------------------------------------------------------------------
+
+// Demonstrate using "##" and "###" in identifiers to manipulate ID generation.
+// This apply to all regular items as well.
+// Read FAQ section "How can I have multiple widgets with the same label?" for details.
+static void ShowExampleAppWindowTitles(bool*)
+{
+    const ImGuiViewport* viewport = ImGui::GetMainViewport();
+    const ImVec2 base_pos = viewport->Pos;
+
+    // By default, Windows are uniquely identified by their title.
+    // You can use the "##" and "###" markers to manipulate the display/ID.
+
+    // Using "##" to display same title but have unique identifier.
+    ImGui::SetNextWindowPos(ImVec2(base_pos.x + 100, base_pos.y + 100), ImGuiCond_FirstUseEver);
+    ImGui::Begin("Same title as another window##1");
+    IMGUI_DEMO_MARKER("Examples/Manipulating window titles");
+    ImGui::Text("This is window 1.\nMy title is the same as window 2, but my identifier is unique.");
+    ImGui::End();
+
+    ImGui::SetNextWindowPos(ImVec2(base_pos.x + 100, base_pos.y + 200), ImGuiCond_FirstUseEver);
+    ImGui::Begin("Same title as another window##2");
+    ImGui::Text("This is window 2.\nMy title is the same as window 1, but my identifier is unique.");
+    ImGui::End();
+
+    // Using "###" to display a changing title but keep a static identifier "AnimatedTitle"
+    char buf[128];
+    sprintf(buf, "Animated title %c %d###AnimatedTitle", "|/-\\"[(int)(ImGui::GetTime() / 0.25f) & 3], ImGui::GetFrameCount());
+    ImGui::SetNextWindowPos(ImVec2(base_pos.x + 100, base_pos.y + 300), ImGuiCond_FirstUseEver);
+    ImGui::Begin(buf);
+    ImGui::Text("This window has a changing title.");
+    ImGui::End();
+}
+
+//-----------------------------------------------------------------------------
+// [SECTION] Example App: Custom Rendering using ImDrawList API / ShowExampleAppCustomRendering()
+//-----------------------------------------------------------------------------
+
+// Demonstrate using the low-level ImDrawList to draw custom shapes.
+static void ShowExampleAppCustomRendering(bool* p_open)
+{
+    if (!ImGui::Begin("Example: Custom rendering", p_open))
+    {
+        ImGui::End();
+        return;
+    }
+    IMGUI_DEMO_MARKER("Examples/Custom Rendering");
+
+    // Tip: If you do a lot of custom rendering, you probably want to use your own geometrical types and benefit of
+    // overloaded operators, etc. Define IM_VEC2_CLASS_EXTRA in imconfig.h to create implicit conversions between your
+    // types and ImVec2/ImVec4. Dear ImGui defines overloaded operators but they are internal to imgui.cpp and not
+    // exposed outside (to avoid messing with your types) In this example we are not using the maths operators!
+
+    if (ImGui::BeginTabBar("##TabBar"))
+    {
+        if (ImGui::BeginTabItem("Primitives"))
+        {
+            ImGui::PushItemWidth(-ImGui::GetFontSize() * 15);
+            ImDrawList* draw_list = ImGui::GetWindowDrawList();
+
+            // Draw gradients
+            // (note that those are currently exacerbating our sRGB/Linear issues)
+            // Calling ImGui::GetColorU32() multiplies the given colors by the current Style Alpha, but you may pass the IM_COL32() directly as well..
+            ImGui::Text("Gradients");
+            ImVec2 gradient_size = ImVec2(ImGui::CalcItemWidth(), ImGui::GetFrameHeight());
+            {
+                ImVec2 p0 = ImGui::GetCursorScreenPos();
+                ImVec2 p1 = ImVec2(p0.x + gradient_size.x, p0.y + gradient_size.y);
+                ImU32 col_a = ImGui::GetColorU32(IM_COL32(0, 0, 0, 255));
+                ImU32 col_b = ImGui::GetColorU32(IM_COL32(255, 255, 255, 255));
+                draw_list->AddRectFilledMultiColor(p0, p1, col_a, col_b, col_b, col_a);
+                ImGui::InvisibleButton("##gradient1", gradient_size);
+            }
+            {
+                ImVec2 p0 = ImGui::GetCursorScreenPos();
+                ImVec2 p1 = ImVec2(p0.x + gradient_size.x, p0.y + gradient_size.y);
+                ImU32 col_a = ImGui::GetColorU32(IM_COL32(0, 255, 0, 255));
+                ImU32 col_b = ImGui::GetColorU32(IM_COL32(255, 0, 0, 255));
+                draw_list->AddRectFilledMultiColor(p0, p1, col_a, col_b, col_b, col_a);
+                ImGui::InvisibleButton("##gradient2", gradient_size);
+            }
+
+            // Draw a bunch of primitives
+            ImGui::Text("All primitives");
+            static float sz = 36.0f;
+            static float thickness = 3.0f;
+            static int ngon_sides = 6;
+            static bool circle_segments_override = false;
+            static int circle_segments_override_v = 12;
+            static bool curve_segments_override = false;
+            static int curve_segments_override_v = 8;
+            static ImVec4 colf = ImVec4(1.0f, 1.0f, 0.4f, 1.0f);
+            ImGui::DragFloat("Size", &sz, 0.2f, 2.0f, 100.0f, "%.0f");
+            ImGui::DragFloat("Thickness", &thickness, 0.05f, 1.0f, 8.0f, "%.02f");
+            ImGui::SliderInt("N-gon sides", &ngon_sides, 3, 12);
+            ImGui::Checkbox("##circlesegmentoverride", &circle_segments_override);
+            ImGui::SameLine(0.0f, ImGui::GetStyle().ItemInnerSpacing.x);
+            circle_segments_override |= ImGui::SliderInt("Circle segments override", &circle_segments_override_v, 3, 40);
+            ImGui::Checkbox("##curvessegmentoverride", &curve_segments_override);
+            ImGui::SameLine(0.0f, ImGui::GetStyle().ItemInnerSpacing.x);
+            curve_segments_override |= ImGui::SliderInt("Curves segments override", &curve_segments_override_v, 3, 40);
+            ImGui::ColorEdit4("Color", &colf.x);
+
+            const ImVec2 p = ImGui::GetCursorScreenPos();
+            const ImU32 col = ImColor(colf);
+            const float spacing = 10.0f;
+            const ImDrawFlags corners_tl_br = ImDrawFlags_RoundCornersTopLeft | ImDrawFlags_RoundCornersBottomRight;
+            const float rounding = sz / 5.0f;
+            const int circle_segments = circle_segments_override ? circle_segments_override_v : 0;
+            const int curve_segments = curve_segments_override ? curve_segments_override_v : 0;
+            float x = p.x + 4.0f;
+            float y = p.y + 4.0f;
+            for (int n = 0; n < 2; n++)
+            {
+                // First line uses a thickness of 1.0f, second line uses the configurable thickness
+                float th = (n == 0) ? 1.0f : thickness;
+                draw_list->AddNgon(ImVec2(x + sz*0.5f, y + sz*0.5f), sz*0.5f, col, ngon_sides, th);                 x += sz + spacing;  // N-gon
+                draw_list->AddCircle(ImVec2(x + sz*0.5f, y + sz*0.5f), sz*0.5f, col, circle_segments, th);          x += sz + spacing;  // Circle
+                draw_list->AddRect(ImVec2(x, y), ImVec2(x + sz, y + sz), col, 0.0f, ImDrawFlags_None, th);          x += sz + spacing;  // Square
+                draw_list->AddRect(ImVec2(x, y), ImVec2(x + sz, y + sz), col, rounding, ImDrawFlags_None, th);      x += sz + spacing;  // Square with all rounded corners
+                draw_list->AddRect(ImVec2(x, y), ImVec2(x + sz, y + sz), col, rounding, corners_tl_br, th);         x += sz + spacing;  // Square with two rounded corners
+                draw_list->AddTriangle(ImVec2(x+sz*0.5f,y), ImVec2(x+sz, y+sz-0.5f), ImVec2(x, y+sz-0.5f), col, th);x += sz + spacing;  // Triangle
+                //draw_list->AddTriangle(ImVec2(x+sz*0.2f,y), ImVec2(x, y+sz-0.5f), ImVec2(x+sz*0.4f, y+sz-0.5f), col, th);x+= sz*0.4f + spacing; // Thin triangle
+                draw_list->AddLine(ImVec2(x, y), ImVec2(x + sz, y), col, th);                                       x += sz + spacing;  // Horizontal line (note: drawing a filled rectangle will be faster!)
+                draw_list->AddLine(ImVec2(x, y), ImVec2(x, y + sz), col, th);                                       x += spacing;       // Vertical line (note: drawing a filled rectangle will be faster!)
+                draw_list->AddLine(ImVec2(x, y), ImVec2(x + sz, y + sz), col, th);                                  x += sz + spacing;  // Diagonal line
+
+                // Quadratic Bezier Curve (3 control points)
+                ImVec2 cp3[3] = { ImVec2(x, y + sz * 0.6f), ImVec2(x + sz * 0.5f, y - sz * 0.4f), ImVec2(x + sz, y + sz) };
+                draw_list->AddBezierQuadratic(cp3[0], cp3[1], cp3[2], col, th, curve_segments); x += sz + spacing;
+
+                // Cubic Bezier Curve (4 control points)
+                ImVec2 cp4[4] = { ImVec2(x, y), ImVec2(x + sz * 1.3f, y + sz * 0.3f), ImVec2(x + sz - sz * 1.3f, y + sz - sz * 0.3f), ImVec2(x + sz, y + sz) };
+                draw_list->AddBezierCubic(cp4[0], cp4[1], cp4[2], cp4[3], col, th, curve_segments);
+
+                x = p.x + 4;
+                y += sz + spacing;
+            }
+            draw_list->AddNgonFilled(ImVec2(x + sz * 0.5f, y + sz * 0.5f), sz*0.5f, col, ngon_sides);               x += sz + spacing;  // N-gon
+            draw_list->AddCircleFilled(ImVec2(x + sz*0.5f, y + sz*0.5f), sz*0.5f, col, circle_segments);            x += sz + spacing;  // Circle
+            draw_list->AddRectFilled(ImVec2(x, y), ImVec2(x + sz, y + sz), col);                                    x += sz + spacing;  // Square
+            draw_list->AddRectFilled(ImVec2(x, y), ImVec2(x + sz, y + sz), col, 10.0f);                             x += sz + spacing;  // Square with all rounded corners
+            draw_list->AddRectFilled(ImVec2(x, y), ImVec2(x + sz, y + sz), col, 10.0f, corners_tl_br);              x += sz + spacing;  // Square with two rounded corners
+            draw_list->AddTriangleFilled(ImVec2(x+sz*0.5f,y), ImVec2(x+sz, y+sz-0.5f), ImVec2(x, y+sz-0.5f), col);  x += sz + spacing;  // Triangle
+            //draw_list->AddTriangleFilled(ImVec2(x+sz*0.2f,y), ImVec2(x, y+sz-0.5f), ImVec2(x+sz*0.4f, y+sz-0.5f), col); x += sz*0.4f + spacing; // Thin triangle
+            draw_list->AddRectFilled(ImVec2(x, y), ImVec2(x + sz, y + thickness), col);                             x += sz + spacing;  // Horizontal line (faster than AddLine, but only handle integer thickness)
+            draw_list->AddRectFilled(ImVec2(x, y), ImVec2(x + thickness, y + sz), col);                             x += spacing * 2.0f;// Vertical line (faster than AddLine, but only handle integer thickness)
+            draw_list->AddRectFilled(ImVec2(x, y), ImVec2(x + 1, y + 1), col);                                      x += sz;            // Pixel (faster than AddLine)
+            draw_list->AddRectFilledMultiColor(ImVec2(x, y), ImVec2(x + sz, y + sz), IM_COL32(0, 0, 0, 255), IM_COL32(255, 0, 0, 255), IM_COL32(255, 255, 0, 255), IM_COL32(0, 255, 0, 255));
+
+            ImGui::Dummy(ImVec2((sz + spacing) * 10.2f, (sz + spacing) * 3.0f));
+            ImGui::PopItemWidth();
+            ImGui::EndTabItem();
+        }
+
+        if (ImGui::BeginTabItem("Canvas"))
+        {
+            static ImVector<ImVec2> points;
+            static ImVec2 scrolling(0.0f, 0.0f);
+            static bool opt_enable_grid = true;
+            static bool opt_enable_context_menu = true;
+            static bool adding_line = false;
+
+            ImGui::Checkbox("Enable grid", &opt_enable_grid);
+            ImGui::Checkbox("Enable context menu", &opt_enable_context_menu);
+            ImGui::Text("Mouse Left: drag to add lines,\nMouse Right: drag to scroll, click for context menu.");
+
+            // Typically you would use a BeginChild()/EndChild() pair to benefit from a clipping region + own scrolling.
+            // Here we demonstrate that this can be replaced by simple offsetting + custom drawing + PushClipRect/PopClipRect() calls.
+            // To use a child window instead we could use, e.g:
+            //      ImGui::PushStyleVar(ImGuiStyleVar_WindowPadding, ImVec2(0, 0));      // Disable padding
+            //      ImGui::PushStyleColor(ImGuiCol_ChildBg, IM_COL32(50, 50, 50, 255));  // Set a background color
+            //      ImGui::BeginChild("canvas", ImVec2(0.0f, 0.0f), true, ImGuiWindowFlags_NoMove);
+            //      ImGui::PopStyleColor();
+            //      ImGui::PopStyleVar();
+            //      [...]
+            //      ImGui::EndChild();
+
+            // Using InvisibleButton() as a convenience 1) it will advance the layout cursor and 2) allows us to use IsItemHovered()/IsItemActive()
+            ImVec2 canvas_p0 = ImGui::GetCursorScreenPos();      // ImDrawList API uses screen coordinates!
+            ImVec2 canvas_sz = ImGui::GetContentRegionAvail();   // Resize canvas to what's available
+            if (canvas_sz.x < 50.0f) canvas_sz.x = 50.0f;
+            if (canvas_sz.y < 50.0f) canvas_sz.y = 50.0f;
+            ImVec2 canvas_p1 = ImVec2(canvas_p0.x + canvas_sz.x, canvas_p0.y + canvas_sz.y);
+
+            // Draw border and background color
+            ImGuiIO& io = ImGui::GetIO();
+            ImDrawList* draw_list = ImGui::GetWindowDrawList();
+            draw_list->AddRectFilled(canvas_p0, canvas_p1, IM_COL32(50, 50, 50, 255));
+            draw_list->AddRect(canvas_p0, canvas_p1, IM_COL32(255, 255, 255, 255));
+
+            // This will catch our interactions
+            ImGui::InvisibleButton("canvas", canvas_sz, ImGuiButtonFlags_MouseButtonLeft | ImGuiButtonFlags_MouseButtonRight);
+            const bool is_hovered = ImGui::IsItemHovered(); // Hovered
+            const bool is_active = ImGui::IsItemActive();   // Held
+            const ImVec2 origin(canvas_p0.x + scrolling.x, canvas_p0.y + scrolling.y); // Lock scrolled origin
+            const ImVec2 mouse_pos_in_canvas(io.MousePos.x - origin.x, io.MousePos.y - origin.y);
+
+            // Add first and second point
+            if (is_hovered && !adding_line && ImGui::IsMouseClicked(ImGuiMouseButton_Left))
+            {
+                points.push_back(mouse_pos_in_canvas);
+                points.push_back(mouse_pos_in_canvas);
+                adding_line = true;
+            }
+            if (adding_line)
+            {
+                points.back() = mouse_pos_in_canvas;
+                if (!ImGui::IsMouseDown(ImGuiMouseButton_Left))
+                    adding_line = false;
+            }
+
+            // Pan (we use a zero mouse threshold when there's no context menu)
+            // You may decide to make that threshold dynamic based on whether the mouse is hovering something etc.
+            const float mouse_threshold_for_pan = opt_enable_context_menu ? -1.0f : 0.0f;
+            if (is_active && ImGui::IsMouseDragging(ImGuiMouseButton_Right, mouse_threshold_for_pan))
+            {
+                scrolling.x += io.MouseDelta.x;
+                scrolling.y += io.MouseDelta.y;
+            }
+
+            // Context menu (under default mouse threshold)
+            ImVec2 drag_delta = ImGui::GetMouseDragDelta(ImGuiMouseButton_Right);
+            if (opt_enable_context_menu && drag_delta.x == 0.0f && drag_delta.y == 0.0f)
+                ImGui::OpenPopupOnItemClick("context", ImGuiPopupFlags_MouseButtonRight);
+            if (ImGui::BeginPopup("context"))
+            {
+                if (adding_line)
+                    points.resize(points.size() - 2);
+                adding_line = false;
+                if (ImGui::MenuItem("Remove one", NULL, false, points.Size > 0)) { points.resize(points.size() - 2); }
+                if (ImGui::MenuItem("Remove all", NULL, false, points.Size > 0)) { points.clear(); }
+                ImGui::EndPopup();
+            }
+
+            // Draw grid + all lines in the canvas
+            draw_list->PushClipRect(canvas_p0, canvas_p1, true);
+            if (opt_enable_grid)
+            {
+                const float GRID_STEP = 64.0f;
+                for (float x = fmodf(scrolling.x, GRID_STEP); x < canvas_sz.x; x += GRID_STEP)
+                    draw_list->AddLine(ImVec2(canvas_p0.x + x, canvas_p0.y), ImVec2(canvas_p0.x + x, canvas_p1.y), IM_COL32(200, 200, 200, 40));
+                for (float y = fmodf(scrolling.y, GRID_STEP); y < canvas_sz.y; y += GRID_STEP)
+                    draw_list->AddLine(ImVec2(canvas_p0.x, canvas_p0.y + y), ImVec2(canvas_p1.x, canvas_p0.y + y), IM_COL32(200, 200, 200, 40));
+            }
+            for (int n = 0; n < points.Size; n += 2)
+                draw_list->AddLine(ImVec2(origin.x + points[n].x, origin.y + points[n].y), ImVec2(origin.x + points[n + 1].x, origin.y + points[n + 1].y), IM_COL32(255, 255, 0, 255), 2.0f);
+            draw_list->PopClipRect();
+
+            ImGui::EndTabItem();
+        }
+
+        if (ImGui::BeginTabItem("BG/FG draw lists"))
+        {
+            static bool draw_bg = true;
+            static bool draw_fg = true;
+            ImGui::Checkbox("Draw in Background draw list", &draw_bg);
+            ImGui::SameLine(); HelpMarker("The Background draw list will be rendered below every Dear ImGui windows.");
+            ImGui::Checkbox("Draw in Foreground draw list", &draw_fg);
+            ImGui::SameLine(); HelpMarker("The Foreground draw list will be rendered over every Dear ImGui windows.");
+            ImVec2 window_pos = ImGui::GetWindowPos();
+            ImVec2 window_size = ImGui::GetWindowSize();
+            ImVec2 window_center = ImVec2(window_pos.x + window_size.x * 0.5f, window_pos.y + window_size.y * 0.5f);
+            if (draw_bg)
+                ImGui::GetBackgroundDrawList()->AddCircle(window_center, window_size.x * 0.6f, IM_COL32(255, 0, 0, 200), 0, 10 + 4);
+            if (draw_fg)
+                ImGui::GetForegroundDrawList()->AddCircle(window_center, window_size.y * 0.6f, IM_COL32(0, 255, 0, 200), 0, 10);
+            ImGui::EndTabItem();
+        }
+
+        ImGui::EndTabBar();
+    }
+
+    ImGui::End();
+}
+
+//-----------------------------------------------------------------------------
+// [SECTION] Example App: Documents Handling / ShowExampleAppDocuments()
+//-----------------------------------------------------------------------------
+
+// Simplified structure to mimic a Document model
+struct MyDocument
+{
+    const char* Name;       // Document title
+    bool        Open;       // Set when open (we keep an array of all available documents to simplify demo code!)
+    bool        OpenPrev;   // Copy of Open from last update.
+    bool        Dirty;      // Set when the document has been modified
+    bool        WantClose;  // Set when the document
+    ImVec4      Color;      // An arbitrary variable associated to the document
+
+    MyDocument(const char* name, bool open = true, const ImVec4& color = ImVec4(1.0f, 1.0f, 1.0f, 1.0f))
+    {
+        Name = name;
+        Open = OpenPrev = open;
+        Dirty = false;
+        WantClose = false;
+        Color = color;
+    }
+    void DoOpen()       { Open = true; }
+    void DoQueueClose() { WantClose = true; }
+    void DoForceClose() { Open = false; Dirty = false; }
+    void DoSave()       { Dirty = false; }
+
+    // Display placeholder contents for the Document
+    static void DisplayContents(MyDocument* doc)
+    {
+        ImGui::PushID(doc);
+        ImGui::Text("Document \"%s\"", doc->Name);
+        ImGui::PushStyleColor(ImGuiCol_Text, doc->Color);
+        ImGui::TextWrapped("Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua.");
+        ImGui::PopStyleColor();
+        if (ImGui::Button("Modify", ImVec2(100, 0)))
+            doc->Dirty = true;
+        ImGui::SameLine();
+        if (ImGui::Button("Save", ImVec2(100, 0)))
+            doc->DoSave();
+        ImGui::ColorEdit3("color", &doc->Color.x);  // Useful to test drag and drop and hold-dragged-to-open-tab behavior.
+        ImGui::PopID();
+    }
+
+    // Display context menu for the Document
+    static void DisplayContextMenu(MyDocument* doc)
+    {
+        if (!ImGui::BeginPopupContextItem())
+            return;
+
+        char buf[256];
+        sprintf(buf, "Save %s", doc->Name);
+        if (ImGui::MenuItem(buf, "CTRL+S", false, doc->Open))
+            doc->DoSave();
+        if (ImGui::MenuItem("Close", "CTRL+W", false, doc->Open))
+            doc->DoQueueClose();
+        ImGui::EndPopup();
+    }
+};
+
+struct ExampleAppDocuments
+{
+    ImVector<MyDocument> Documents;
+
+    ExampleAppDocuments()
+    {
+        Documents.push_back(MyDocument("Lettuce",             true,  ImVec4(0.4f, 0.8f, 0.4f, 1.0f)));
+        Documents.push_back(MyDocument("Eggplant",            true,  ImVec4(0.8f, 0.5f, 1.0f, 1.0f)));
+        Documents.push_back(MyDocument("Carrot",              true,  ImVec4(1.0f, 0.8f, 0.5f, 1.0f)));
+        Documents.push_back(MyDocument("Tomato",              false, ImVec4(1.0f, 0.3f, 0.4f, 1.0f)));
+        Documents.push_back(MyDocument("A Rather Long Title", false));
+        Documents.push_back(MyDocument("Some Document",       false));
+    }
+};
+
+// [Optional] Notify the system of Tabs/Windows closure that happened outside the regular tab interface.
+// If a tab has been closed programmatically (aka closed from another source such as the Checkbox() in the demo,
+// as opposed to clicking on the regular tab closing button) and stops being submitted, it will take a frame for
+// the tab bar to notice its absence. During this frame there will be a gap in the tab bar, and if the tab that has
+// disappeared was the selected one, the tab bar will report no selected tab during the frame. This will effectively
+// give the impression of a flicker for one frame.
+// We call SetTabItemClosed() to manually notify the Tab Bar or Docking system of removed tabs to avoid this glitch.
+// Note that this completely optional, and only affect tab bars with the ImGuiTabBarFlags_Reorderable flag.
+static void NotifyOfDocumentsClosedElsewhere(ExampleAppDocuments& app)
+{
+    for (int doc_n = 0; doc_n < app.Documents.Size; doc_n++)
+    {
+        MyDocument* doc = &app.Documents[doc_n];
+        if (!doc->Open && doc->OpenPrev)
+            ImGui::SetTabItemClosed(doc->Name);
+        doc->OpenPrev = doc->Open;
+    }
+}
+
+void ShowExampleAppDocuments(bool* p_open)
+{
+    static ExampleAppDocuments app;
+
+    // Options
+    static bool opt_reorderable = true;
+    static ImGuiTabBarFlags opt_fitting_flags = ImGuiTabBarFlags_FittingPolicyDefault_;
+
+    bool window_contents_visible = ImGui::Begin("Example: Documents", p_open, ImGuiWindowFlags_MenuBar);
+    if (!window_contents_visible)
+    {
+        ImGui::End();
+        return;
+    }
+
+    // Menu
+    if (ImGui::BeginMenuBar())
+    {
+        if (ImGui::BeginMenu("File"))
+        {
+            int open_count = 0;
+            for (int doc_n = 0; doc_n < app.Documents.Size; doc_n++)
+                open_count += app.Documents[doc_n].Open ? 1 : 0;
+
+            if (ImGui::BeginMenu("Open", open_count < app.Documents.Size))
+            {
+                for (int doc_n = 0; doc_n < app.Documents.Size; doc_n++)
+                {
+                    MyDocument* doc = &app.Documents[doc_n];
+                    if (!doc->Open)
+                        if (ImGui::MenuItem(doc->Name))
+                            doc->DoOpen();
+                }
+                ImGui::EndMenu();
+            }
+            if (ImGui::MenuItem("Close All Documents", NULL, false, open_count > 0))
+                for (int doc_n = 0; doc_n < app.Documents.Size; doc_n++)
+                    app.Documents[doc_n].DoQueueClose();
+            if (ImGui::MenuItem("Exit", "Alt+F4")) {}
+            ImGui::EndMenu();
+        }
+        ImGui::EndMenuBar();
+    }
+
+    // [Debug] List documents with one checkbox for each
+    for (int doc_n = 0; doc_n < app.Documents.Size; doc_n++)
+    {
+        MyDocument* doc = &app.Documents[doc_n];
+        if (doc_n > 0)
+            ImGui::SameLine();
+        ImGui::PushID(doc);
+        if (ImGui::Checkbox(doc->Name, &doc->Open))
+            if (!doc->Open)
+                doc->DoForceClose();
+        ImGui::PopID();
+    }
+
+    ImGui::Separator();
+
+    // About the ImGuiWindowFlags_UnsavedDocument / ImGuiTabItemFlags_UnsavedDocument flags.
+    // They have multiple effects:
+    // - Display a dot next to the title.
+    // - Tab is selected when clicking the X close button.
+    // - Closure is not assumed (will wait for user to stop submitting the tab).
+    //   Otherwise closure is assumed when pressing the X, so if you keep submitting the tab may reappear at end of tab bar.
+    //   We need to assume closure by default otherwise waiting for "lack of submission" on the next frame would leave an empty
+    //   hole for one-frame, both in the tab-bar and in tab-contents when closing a tab/window.
+    //   The rarely used SetTabItemClosed() function is a way to notify of programmatic closure to avoid the one-frame hole.
+
+    // Submit Tab Bar and Tabs
+    {
+        ImGuiTabBarFlags tab_bar_flags = (opt_fitting_flags) | (opt_reorderable ? ImGuiTabBarFlags_Reorderable : 0);
+        if (ImGui::BeginTabBar("##tabs", tab_bar_flags))
+        {
+            if (opt_reorderable)
+                NotifyOfDocumentsClosedElsewhere(app);
+
+            // [DEBUG] Stress tests
+            //if ((ImGui::GetFrameCount() % 30) == 0) docs[1].Open ^= 1;            // [DEBUG] Automatically show/hide a tab. Test various interactions e.g. dragging with this on.
+            //if (ImGui::GetIO().KeyCtrl) ImGui::SetTabItemSelected(docs[1].Name);  // [DEBUG] Test SetTabItemSelected(), probably not very useful as-is anyway..
+
+            // Submit Tabs
+            for (int doc_n = 0; doc_n < app.Documents.Size; doc_n++)
+            {
+                MyDocument* doc = &app.Documents[doc_n];
+                if (!doc->Open)
+                    continue;
+
+                ImGuiTabItemFlags tab_flags = (doc->Dirty ? ImGuiTabItemFlags_UnsavedDocument : 0);
+                bool visible = ImGui::BeginTabItem(doc->Name, &doc->Open, tab_flags);
+
+                // Cancel attempt to close when unsaved add to save queue so we can display a popup.
+                if (!doc->Open && doc->Dirty)
+                {
+                    doc->Open = true;
+                    doc->DoQueueClose();
+                }
+
+                MyDocument::DisplayContextMenu(doc);
+                if (visible)
+                {
+                    MyDocument::DisplayContents(doc);
+                    ImGui::EndTabItem();
+                }
+            }
+
+            ImGui::EndTabBar();
+        }
+    }
+
+    // Update closing queue
+    static ImVector<MyDocument*> close_queue;
+    if (close_queue.empty())
+    {
+        // Close queue is locked once we started a popup
+        for (int doc_n = 0; doc_n < app.Documents.Size; doc_n++)
+        {
+            MyDocument* doc = &app.Documents[doc_n];
+            if (doc->WantClose)
+            {
+                doc->WantClose = false;
+                close_queue.push_back(doc);
+            }
+        }
+    }
+
+    // Display closing confirmation UI
+    if (!close_queue.empty())
+    {
+        int close_queue_unsaved_documents = 0;
+        for (int n = 0; n < close_queue.Size; n++)
+            if (close_queue[n]->Dirty)
+                close_queue_unsaved_documents++;
+
+        if (close_queue_unsaved_documents == 0)
+        {
+            // Close documents when all are unsaved
+            for (int n = 0; n < close_queue.Size; n++)
+                close_queue[n]->DoForceClose();
+            close_queue.clear();
+        }
+        else
+        {
+            if (!ImGui::IsPopupOpen("Save?"))
+                ImGui::OpenPopup("Save?");
+            if (ImGui::BeginPopupModal("Save?", NULL, ImGuiWindowFlags_AlwaysAutoResize))
+            {
+                ImGui::Text("Save change to the following items?");
+                float item_height = ImGui::GetTextLineHeightWithSpacing();
+                if (ImGui::BeginChildFrame(ImGui::GetID("frame"), ImVec2(-FLT_MIN, 6.25f * item_height)))
+                {
+                    for (int n = 0; n < close_queue.Size; n++)
+                        if (close_queue[n]->Dirty)
+                            ImGui::Text("%s", close_queue[n]->Name);
+                    ImGui::EndChildFrame();
+                }
+
+                ImVec2 button_size(ImGui::GetFontSize() * 7.0f, 0.0f);
+                if (ImGui::Button("Yes", button_size))
+                {
+                    for (int n = 0; n < close_queue.Size; n++)
+                    {
+                        if (close_queue[n]->Dirty)
+                            close_queue[n]->DoSave();
+                        close_queue[n]->DoForceClose();
+                    }
+                    close_queue.clear();
+                    ImGui::CloseCurrentPopup();
+                }
+                ImGui::SameLine();
+                if (ImGui::Button("No", button_size))
+                {
+                    for (int n = 0; n < close_queue.Size; n++)
+                        close_queue[n]->DoForceClose();
+                    close_queue.clear();
+                    ImGui::CloseCurrentPopup();
+                }
+                ImGui::SameLine();
+                if (ImGui::Button("Cancel", button_size))
+                {
+                    close_queue.clear();
+                    ImGui::CloseCurrentPopup();
+                }
+                ImGui::EndPopup();
+            }
+        }
+    }
+
+    ImGui::End();
+}
+
+// End of Demo code
+#else
+
+void ImGui::ShowAboutWindow(bool*) {}
+void ImGui::ShowDemoWindow(bool*) {}
+void ImGui::ShowUserGuide() {}
+void ImGui::ShowStyleEditor(ImGuiStyle*) {}
+
+#endif
+
+#endif // #ifndef IMGUI_DISABLE
diff --git a/tests/manual/rhi/shared/imgui/imgui/imgui_draw.cpp b/tests/manual/rhi/shared/imgui/imgui/imgui_draw.cpp
new file mode 100644
index 00000000..fcdb9dfe
--- /dev/null
+++ b/tests/manual/rhi/shared/imgui/imgui/imgui_draw.cpp
@@ -0,0 +1,4162 @@
+// dear imgui, v1.88
+// (drawing and font code)
+
+/*
+
+Index of this file:
+
+// [SECTION] STB libraries implementation
+// [SECTION] Style functions
+// [SECTION] ImDrawList
+// [SECTION] ImDrawListSplitter
+// [SECTION] ImDrawData
+// [SECTION] Helpers ShadeVertsXXX functions
+// [SECTION] ImFontConfig
+// [SECTION] ImFontAtlas
+// [SECTION] ImFontAtlas glyph ranges helpers
+// [SECTION] ImFontGlyphRangesBuilder
+// [SECTION] ImFont
+// [SECTION] ImGui Internal Render Helpers
+// [SECTION] Decompression code
+// [SECTION] Default font data (ProggyClean.ttf)
+
+*/
+
+#if defined(_MSC_VER) && !defined(_CRT_SECURE_NO_WARNINGS)
+#define _CRT_SECURE_NO_WARNINGS
+#endif
+
+#include "imgui.h"
+#ifndef IMGUI_DISABLE
+
+#ifndef IMGUI_DEFINE_MATH_OPERATORS
+#define IMGUI_DEFINE_MATH_OPERATORS
+#endif
+
+#include "imgui_internal.h"
+#ifdef IMGUI_ENABLE_FREETYPE
+#include "misc/freetype/imgui_freetype.h"
+#endif
+
+#include <stdio.h>      // vsnprintf, sscanf, printf
+#if !defined(alloca)
+#if defined(__GLIBC__) || defined(__sun) || defined(__APPLE__) || defined(__NEWLIB__)
+#include <alloca.h>     // alloca (glibc uses <alloca.h>. Note that Cygwin may have _WIN32 defined, so the order matters here)
+#elif defined(_WIN32)
+#include <malloc.h>     // alloca
+#if !defined(alloca)
+#define alloca _alloca  // for clang with MS Codegen
+#endif
+#else
+#include <stdlib.h>     // alloca
+#endif
+#endif
+
+// Visual Studio warnings
+#ifdef _MSC_VER
+#pragma warning (disable: 4127)     // condition expression is constant
+#pragma warning (disable: 4505)     // unreferenced local function has been removed (stb stuff)
+#pragma warning (disable: 4996)     // 'This function or variable may be unsafe': strcpy, strdup, sprintf, vsnprintf, sscanf, fopen
+#pragma warning (disable: 6255)     // [Static Analyzer] _alloca indicates failure by raising a stack overflow exception.  Consider using _malloca instead.
+#pragma warning (disable: 26451)    // [Static Analyzer] Arithmetic overflow : Using operator 'xxx' on a 4 byte value and then casting the result to a 8 byte value. Cast the value to the wider type before calling operator 'xxx' to avoid overflow(io.2).
+#pragma warning (disable: 26812)    // [Static Analyzer] The enum type 'xxx' is unscoped. Prefer 'enum class' over 'enum' (Enum.3). [MSVC Static Analyzer)
+#endif
+
+// Clang/GCC warnings with -Weverything
+#if defined(__clang__)
+#if __has_warning("-Wunknown-warning-option")
+#pragma clang diagnostic ignored "-Wunknown-warning-option"         // warning: unknown warning group 'xxx'                      // not all warnings are known by all Clang versions and they tend to be rename-happy.. so ignoring warnings triggers new warnings on some configuration. Great!
+#endif
+#if __has_warning("-Walloca")
+#pragma clang diagnostic ignored "-Walloca"                         // warning: use of function '__builtin_alloca' is discouraged
+#endif
+#pragma clang diagnostic ignored "-Wunknown-pragmas"                // warning: unknown warning group 'xxx'
+#pragma clang diagnostic ignored "-Wold-style-cast"                 // warning: use of old-style cast                            // yes, they are more terse.
+#pragma clang diagnostic ignored "-Wfloat-equal"                    // warning: comparing floating point with == or != is unsafe // storing and comparing against same constants ok.
+#pragma clang diagnostic ignored "-Wglobal-constructors"            // warning: declaration requires a global destructor         // similar to above, not sure what the exact difference is.
+#pragma clang diagnostic ignored "-Wsign-conversion"                // warning: implicit conversion changes signedness
+#pragma clang diagnostic ignored "-Wzero-as-null-pointer-constant"  // warning: zero as null pointer constant                    // some standard header variations use #define NULL 0
+#pragma clang diagnostic ignored "-Wcomma"                          // warning: possible misuse of comma operator here
+#pragma clang diagnostic ignored "-Wreserved-id-macro"              // warning: macro name is a reserved identifier
+#pragma clang diagnostic ignored "-Wdouble-promotion"               // warning: implicit conversion from 'float' to 'double' when passing argument to function  // using printf() is a misery with this as C++ va_arg ellipsis changes float to double.
+#pragma clang diagnostic ignored "-Wimplicit-int-float-conversion"  // warning: implicit conversion from 'xxx' to 'float' may lose precision
+#elif defined(__GNUC__)
+#pragma GCC diagnostic ignored "-Wpragmas"                  // warning: unknown option after '#pragma GCC diagnostic' kind
+#pragma GCC diagnostic ignored "-Wunused-function"          // warning: 'xxxx' defined but not used
+#pragma GCC diagnostic ignored "-Wdouble-promotion"         // warning: implicit conversion from 'float' to 'double' when passing argument to function
+#pragma GCC diagnostic ignored "-Wconversion"               // warning: conversion to 'xxxx' from 'xxxx' may alter its value
+#pragma GCC diagnostic ignored "-Wstack-protector"          // warning: stack protector not protecting local variables: variable length buffer
+#pragma GCC diagnostic ignored "-Wclass-memaccess"          // [__GNUC__ >= 8] warning: 'memset/memcpy' clearing/writing an object of type 'xxxx' with no trivial copy-assignment; use assignment or value-initialization instead
+#endif
+
+//-------------------------------------------------------------------------
+// [SECTION] STB libraries implementation (for stb_truetype and stb_rect_pack)
+//-------------------------------------------------------------------------
+
+// Compile time options:
+//#define IMGUI_STB_NAMESPACE           ImStb
+//#define IMGUI_STB_TRUETYPE_FILENAME   "my_folder/stb_truetype.h"
+//#define IMGUI_STB_RECT_PACK_FILENAME  "my_folder/stb_rect_pack.h"
+//#define IMGUI_DISABLE_STB_TRUETYPE_IMPLEMENTATION
+//#define IMGUI_DISABLE_STB_RECT_PACK_IMPLEMENTATION
+
+#ifdef IMGUI_STB_NAMESPACE
+namespace IMGUI_STB_NAMESPACE
+{
+#endif
+
+#ifdef _MSC_VER
+#pragma warning (push)
+#pragma warning (disable: 4456)                             // declaration of 'xx' hides previous local declaration
+#pragma warning (disable: 6011)                             // (stb_rectpack) Dereferencing NULL pointer 'cur->next'.
+#pragma warning (disable: 6385)                             // (stb_truetype) Reading invalid data from 'buffer':  the readable size is '_Old_3`kernel_width' bytes, but '3' bytes may be read.
+#pragma warning (disable: 28182)                            // (stb_rectpack) Dereferencing NULL pointer. 'cur' contains the same NULL value as 'cur->next' did.
+#endif
+
+#if defined(__clang__)
+#pragma clang diagnostic push
+#pragma clang diagnostic ignored "-Wunused-function"
+#pragma clang diagnostic ignored "-Wmissing-prototypes"
+#pragma clang diagnostic ignored "-Wimplicit-fallthrough"
+#pragma clang diagnostic ignored "-Wcast-qual"              // warning: cast from 'const xxxx *' to 'xxx *' drops const qualifier
+#endif
+
+#if defined(__GNUC__)
+#pragma GCC diagnostic push
+#pragma GCC diagnostic ignored "-Wtype-limits"              // warning: comparison is always true due to limited range of data type [-Wtype-limits]
+#pragma GCC diagnostic ignored "-Wcast-qual"                // warning: cast from type 'const xxxx *' to type 'xxxx *' casts away qualifiers
+#endif
+
+#ifndef STB_RECT_PACK_IMPLEMENTATION                        // in case the user already have an implementation in the _same_ compilation unit (e.g. unity builds)
+#ifndef IMGUI_DISABLE_STB_RECT_PACK_IMPLEMENTATION          // in case the user already have an implementation in another compilation unit
+#define STBRP_STATIC
+#define STBRP_ASSERT(x)     do { IM_ASSERT(x); } while (0)
+#define STBRP_SORT          ImQsort
+#define STB_RECT_PACK_IMPLEMENTATION
+#endif
+#ifdef IMGUI_STB_RECT_PACK_FILENAME
+#include IMGUI_STB_RECT_PACK_FILENAME
+#else
+#include "imstb_rectpack.h"
+#endif
+#endif
+
+#ifdef  IMGUI_ENABLE_STB_TRUETYPE
+#ifndef STB_TRUETYPE_IMPLEMENTATION                         // in case the user already have an implementation in the _same_ compilation unit (e.g. unity builds)
+#ifndef IMGUI_DISABLE_STB_TRUETYPE_IMPLEMENTATION           // in case the user already have an implementation in another compilation unit
+#define STBTT_malloc(x,u)   ((void)(u), IM_ALLOC(x))
+#define STBTT_free(x,u)     ((void)(u), IM_FREE(x))
+#define STBTT_assert(x)     do { IM_ASSERT(x); } while(0)
+#define STBTT_fmod(x,y)     ImFmod(x,y)
+#define STBTT_sqrt(x)       ImSqrt(x)
+#define STBTT_pow(x,y)      ImPow(x,y)
+#define STBTT_fabs(x)       ImFabs(x)
+#define STBTT_ifloor(x)     ((int)ImFloorSigned(x))
+#define STBTT_iceil(x)      ((int)ImCeil(x))
+#define STBTT_STATIC
+#define STB_TRUETYPE_IMPLEMENTATION
+#else
+#define STBTT_DEF extern
+#endif
+#ifdef IMGUI_STB_TRUETYPE_FILENAME
+#include IMGUI_STB_TRUETYPE_FILENAME
+#else
+#include "imstb_truetype.h"
+#endif
+#endif
+#endif // IMGUI_ENABLE_STB_TRUETYPE
+
+#if defined(__GNUC__)
+#pragma GCC diagnostic pop
+#endif
+
+#if defined(__clang__)
+#pragma clang diagnostic pop
+#endif
+
+#if defined(_MSC_VER)
+#pragma warning (pop)
+#endif
+
+#ifdef IMGUI_STB_NAMESPACE
+} // namespace ImStb
+using namespace IMGUI_STB_NAMESPACE;
+#endif
+
+//-----------------------------------------------------------------------------
+// [SECTION] Style functions
+//-----------------------------------------------------------------------------
+
+void ImGui::StyleColorsDark(ImGuiStyle* dst)
+{
+    ImGuiStyle* style = dst ? dst : &ImGui::GetStyle();
+    ImVec4* colors = style->Colors;
+
+    colors[ImGuiCol_Text]                   = ImVec4(1.00f, 1.00f, 1.00f, 1.00f);
+    colors[ImGuiCol_TextDisabled]           = ImVec4(0.50f, 0.50f, 0.50f, 1.00f);
+    colors[ImGuiCol_WindowBg]               = ImVec4(0.06f, 0.06f, 0.06f, 0.94f);
+    colors[ImGuiCol_ChildBg]                = ImVec4(0.00f, 0.00f, 0.00f, 0.00f);
+    colors[ImGuiCol_PopupBg]                = ImVec4(0.08f, 0.08f, 0.08f, 0.94f);
+    colors[ImGuiCol_Border]                 = ImVec4(0.43f, 0.43f, 0.50f, 0.50f);
+    colors[ImGuiCol_BorderShadow]           = ImVec4(0.00f, 0.00f, 0.00f, 0.00f);
+    colors[ImGuiCol_FrameBg]                = ImVec4(0.16f, 0.29f, 0.48f, 0.54f);
+    colors[ImGuiCol_FrameBgHovered]         = ImVec4(0.26f, 0.59f, 0.98f, 0.40f);
+    colors[ImGuiCol_FrameBgActive]          = ImVec4(0.26f, 0.59f, 0.98f, 0.67f);
+    colors[ImGuiCol_TitleBg]                = ImVec4(0.04f, 0.04f, 0.04f, 1.00f);
+    colors[ImGuiCol_TitleBgActive]          = ImVec4(0.16f, 0.29f, 0.48f, 1.00f);
+    colors[ImGuiCol_TitleBgCollapsed]       = ImVec4(0.00f, 0.00f, 0.00f, 0.51f);
+    colors[ImGuiCol_MenuBarBg]              = ImVec4(0.14f, 0.14f, 0.14f, 1.00f);
+    colors[ImGuiCol_ScrollbarBg]            = ImVec4(0.02f, 0.02f, 0.02f, 0.53f);
+    colors[ImGuiCol_ScrollbarGrab]          = ImVec4(0.31f, 0.31f, 0.31f, 1.00f);
+    colors[ImGuiCol_ScrollbarGrabHovered]   = ImVec4(0.41f, 0.41f, 0.41f, 1.00f);
+    colors[ImGuiCol_ScrollbarGrabActive]    = ImVec4(0.51f, 0.51f, 0.51f, 1.00f);
+    colors[ImGuiCol_CheckMark]              = ImVec4(0.26f, 0.59f, 0.98f, 1.00f);
+    colors[ImGuiCol_SliderGrab]             = ImVec4(0.24f, 0.52f, 0.88f, 1.00f);
+    colors[ImGuiCol_SliderGrabActive]       = ImVec4(0.26f, 0.59f, 0.98f, 1.00f);
+    colors[ImGuiCol_Button]                 = ImVec4(0.26f, 0.59f, 0.98f, 0.40f);
+    colors[ImGuiCol_ButtonHovered]          = ImVec4(0.26f, 0.59f, 0.98f, 1.00f);
+    colors[ImGuiCol_ButtonActive]           = ImVec4(0.06f, 0.53f, 0.98f, 1.00f);
+    colors[ImGuiCol_Header]                 = ImVec4(0.26f, 0.59f, 0.98f, 0.31f);
+    colors[ImGuiCol_HeaderHovered]          = ImVec4(0.26f, 0.59f, 0.98f, 0.80f);
+    colors[ImGuiCol_HeaderActive]           = ImVec4(0.26f, 0.59f, 0.98f, 1.00f);
+    colors[ImGuiCol_Separator]              = colors[ImGuiCol_Border];
+    colors[ImGuiCol_SeparatorHovered]       = ImVec4(0.10f, 0.40f, 0.75f, 0.78f);
+    colors[ImGuiCol_SeparatorActive]        = ImVec4(0.10f, 0.40f, 0.75f, 1.00f);
+    colors[ImGuiCol_ResizeGrip]             = ImVec4(0.26f, 0.59f, 0.98f, 0.20f);
+    colors[ImGuiCol_ResizeGripHovered]      = ImVec4(0.26f, 0.59f, 0.98f, 0.67f);
+    colors[ImGuiCol_ResizeGripActive]       = ImVec4(0.26f, 0.59f, 0.98f, 0.95f);
+    colors[ImGuiCol_Tab]                    = ImLerp(colors[ImGuiCol_Header],       colors[ImGuiCol_TitleBgActive], 0.80f);
+    colors[ImGuiCol_TabHovered]             = colors[ImGuiCol_HeaderHovered];
+    colors[ImGuiCol_TabActive]              = ImLerp(colors[ImGuiCol_HeaderActive], colors[ImGuiCol_TitleBgActive], 0.60f);
+    colors[ImGuiCol_TabUnfocused]           = ImLerp(colors[ImGuiCol_Tab],          colors[ImGuiCol_TitleBg], 0.80f);
+    colors[ImGuiCol_TabUnfocusedActive]     = ImLerp(colors[ImGuiCol_TabActive],    colors[ImGuiCol_TitleBg], 0.40f);
+    colors[ImGuiCol_PlotLines]              = ImVec4(0.61f, 0.61f, 0.61f, 1.00f);
+    colors[ImGuiCol_PlotLinesHovered]       = ImVec4(1.00f, 0.43f, 0.35f, 1.00f);
+    colors[ImGuiCol_PlotHistogram]          = ImVec4(0.90f, 0.70f, 0.00f, 1.00f);
+    colors[ImGuiCol_PlotHistogramHovered]   = ImVec4(1.00f, 0.60f, 0.00f, 1.00f);
+    colors[ImGuiCol_TableHeaderBg]          = ImVec4(0.19f, 0.19f, 0.20f, 1.00f);
+    colors[ImGuiCol_TableBorderStrong]      = ImVec4(0.31f, 0.31f, 0.35f, 1.00f);   // Prefer using Alpha=1.0 here
+    colors[ImGuiCol_TableBorderLight]       = ImVec4(0.23f, 0.23f, 0.25f, 1.00f);   // Prefer using Alpha=1.0 here
+    colors[ImGuiCol_TableRowBg]             = ImVec4(0.00f, 0.00f, 0.00f, 0.00f);
+    colors[ImGuiCol_TableRowBgAlt]          = ImVec4(1.00f, 1.00f, 1.00f, 0.06f);
+    colors[ImGuiCol_TextSelectedBg]         = ImVec4(0.26f, 0.59f, 0.98f, 0.35f);
+    colors[ImGuiCol_DragDropTarget]         = ImVec4(1.00f, 1.00f, 0.00f, 0.90f);
+    colors[ImGuiCol_NavHighlight]           = ImVec4(0.26f, 0.59f, 0.98f, 1.00f);
+    colors[ImGuiCol_NavWindowingHighlight]  = ImVec4(1.00f, 1.00f, 1.00f, 0.70f);
+    colors[ImGuiCol_NavWindowingDimBg]      = ImVec4(0.80f, 0.80f, 0.80f, 0.20f);
+    colors[ImGuiCol_ModalWindowDimBg]       = ImVec4(0.80f, 0.80f, 0.80f, 0.35f);
+}
+
+void ImGui::StyleColorsClassic(ImGuiStyle* dst)
+{
+    ImGuiStyle* style = dst ? dst : &ImGui::GetStyle();
+    ImVec4* colors = style->Colors;
+
+    colors[ImGuiCol_Text]                   = ImVec4(0.90f, 0.90f, 0.90f, 1.00f);
+    colors[ImGuiCol_TextDisabled]           = ImVec4(0.60f, 0.60f, 0.60f, 1.00f);
+    colors[ImGuiCol_WindowBg]               = ImVec4(0.00f, 0.00f, 0.00f, 0.85f);
+    colors[ImGuiCol_ChildBg]                = ImVec4(0.00f, 0.00f, 0.00f, 0.00f);
+    colors[ImGuiCol_PopupBg]                = ImVec4(0.11f, 0.11f, 0.14f, 0.92f);
+    colors[ImGuiCol_Border]                 = ImVec4(0.50f, 0.50f, 0.50f, 0.50f);
+    colors[ImGuiCol_BorderShadow]           = ImVec4(0.00f, 0.00f, 0.00f, 0.00f);
+    colors[ImGuiCol_FrameBg]                = ImVec4(0.43f, 0.43f, 0.43f, 0.39f);
+    colors[ImGuiCol_FrameBgHovered]         = ImVec4(0.47f, 0.47f, 0.69f, 0.40f);
+    colors[ImGuiCol_FrameBgActive]          = ImVec4(0.42f, 0.41f, 0.64f, 0.69f);
+    colors[ImGuiCol_TitleBg]                = ImVec4(0.27f, 0.27f, 0.54f, 0.83f);
+    colors[ImGuiCol_TitleBgActive]          = ImVec4(0.32f, 0.32f, 0.63f, 0.87f);
+    colors[ImGuiCol_TitleBgCollapsed]       = ImVec4(0.40f, 0.40f, 0.80f, 0.20f);
+    colors[ImGuiCol_MenuBarBg]              = ImVec4(0.40f, 0.40f, 0.55f, 0.80f);
+    colors[ImGuiCol_ScrollbarBg]            = ImVec4(0.20f, 0.25f, 0.30f, 0.60f);
+    colors[ImGuiCol_ScrollbarGrab]          = ImVec4(0.40f, 0.40f, 0.80f, 0.30f);
+    colors[ImGuiCol_ScrollbarGrabHovered]   = ImVec4(0.40f, 0.40f, 0.80f, 0.40f);
+    colors[ImGuiCol_ScrollbarGrabActive]    = ImVec4(0.41f, 0.39f, 0.80f, 0.60f);
+    colors[ImGuiCol_CheckMark]              = ImVec4(0.90f, 0.90f, 0.90f, 0.50f);
+    colors[ImGuiCol_SliderGrab]             = ImVec4(1.00f, 1.00f, 1.00f, 0.30f);
+    colors[ImGuiCol_SliderGrabActive]       = ImVec4(0.41f, 0.39f, 0.80f, 0.60f);
+    colors[ImGuiCol_Button]                 = ImVec4(0.35f, 0.40f, 0.61f, 0.62f);
+    colors[ImGuiCol_ButtonHovered]          = ImVec4(0.40f, 0.48f, 0.71f, 0.79f);
+    colors[ImGuiCol_ButtonActive]           = ImVec4(0.46f, 0.54f, 0.80f, 1.00f);
+    colors[ImGuiCol_Header]                 = ImVec4(0.40f, 0.40f, 0.90f, 0.45f);
+    colors[ImGuiCol_HeaderHovered]          = ImVec4(0.45f, 0.45f, 0.90f, 0.80f);
+    colors[ImGuiCol_HeaderActive]           = ImVec4(0.53f, 0.53f, 0.87f, 0.80f);
+    colors[ImGuiCol_Separator]              = ImVec4(0.50f, 0.50f, 0.50f, 0.60f);
+    colors[ImGuiCol_SeparatorHovered]       = ImVec4(0.60f, 0.60f, 0.70f, 1.00f);
+    colors[ImGuiCol_SeparatorActive]        = ImVec4(0.70f, 0.70f, 0.90f, 1.00f);
+    colors[ImGuiCol_ResizeGrip]             = ImVec4(1.00f, 1.00f, 1.00f, 0.10f);
+    colors[ImGuiCol_ResizeGripHovered]      = ImVec4(0.78f, 0.82f, 1.00f, 0.60f);
+    colors[ImGuiCol_ResizeGripActive]       = ImVec4(0.78f, 0.82f, 1.00f, 0.90f);
+    colors[ImGuiCol_Tab]                    = ImLerp(colors[ImGuiCol_Header],       colors[ImGuiCol_TitleBgActive], 0.80f);
+    colors[ImGuiCol_TabHovered]             = colors[ImGuiCol_HeaderHovered];
+    colors[ImGuiCol_TabActive]              = ImLerp(colors[ImGuiCol_HeaderActive], colors[ImGuiCol_TitleBgActive], 0.60f);
+    colors[ImGuiCol_TabUnfocused]           = ImLerp(colors[ImGuiCol_Tab],          colors[ImGuiCol_TitleBg], 0.80f);
+    colors[ImGuiCol_TabUnfocusedActive]     = ImLerp(colors[ImGuiCol_TabActive],    colors[ImGuiCol_TitleBg], 0.40f);
+    colors[ImGuiCol_PlotLines]              = ImVec4(1.00f, 1.00f, 1.00f, 1.00f);
+    colors[ImGuiCol_PlotLinesHovered]       = ImVec4(0.90f, 0.70f, 0.00f, 1.00f);
+    colors[ImGuiCol_PlotHistogram]          = ImVec4(0.90f, 0.70f, 0.00f, 1.00f);
+    colors[ImGuiCol_PlotHistogramHovered]   = ImVec4(1.00f, 0.60f, 0.00f, 1.00f);
+    colors[ImGuiCol_TableHeaderBg]          = ImVec4(0.27f, 0.27f, 0.38f, 1.00f);
+    colors[ImGuiCol_TableBorderStrong]      = ImVec4(0.31f, 0.31f, 0.45f, 1.00f);   // Prefer using Alpha=1.0 here
+    colors[ImGuiCol_TableBorderLight]       = ImVec4(0.26f, 0.26f, 0.28f, 1.00f);   // Prefer using Alpha=1.0 here
+    colors[ImGuiCol_TableRowBg]             = ImVec4(0.00f, 0.00f, 0.00f, 0.00f);
+    colors[ImGuiCol_TableRowBgAlt]          = ImVec4(1.00f, 1.00f, 1.00f, 0.07f);
+    colors[ImGuiCol_TextSelectedBg]         = ImVec4(0.00f, 0.00f, 1.00f, 0.35f);
+    colors[ImGuiCol_DragDropTarget]         = ImVec4(1.00f, 1.00f, 0.00f, 0.90f);
+    colors[ImGuiCol_NavHighlight]           = colors[ImGuiCol_HeaderHovered];
+    colors[ImGuiCol_NavWindowingHighlight]  = ImVec4(1.00f, 1.00f, 1.00f, 0.70f);
+    colors[ImGuiCol_NavWindowingDimBg]      = ImVec4(0.80f, 0.80f, 0.80f, 0.20f);
+    colors[ImGuiCol_ModalWindowDimBg]       = ImVec4(0.20f, 0.20f, 0.20f, 0.35f);
+}
+
+// Those light colors are better suited with a thicker font than the default one + FrameBorder
+void ImGui::StyleColorsLight(ImGuiStyle* dst)
+{
+    ImGuiStyle* style = dst ? dst : &ImGui::GetStyle();
+    ImVec4* colors = style->Colors;
+
+    colors[ImGuiCol_Text]                   = ImVec4(0.00f, 0.00f, 0.00f, 1.00f);
+    colors[ImGuiCol_TextDisabled]           = ImVec4(0.60f, 0.60f, 0.60f, 1.00f);
+    colors[ImGuiCol_WindowBg]               = ImVec4(0.94f, 0.94f, 0.94f, 1.00f);
+    colors[ImGuiCol_ChildBg]                = ImVec4(0.00f, 0.00f, 0.00f, 0.00f);
+    colors[ImGuiCol_PopupBg]                = ImVec4(1.00f, 1.00f, 1.00f, 0.98f);
+    colors[ImGuiCol_Border]                 = ImVec4(0.00f, 0.00f, 0.00f, 0.30f);
+    colors[ImGuiCol_BorderShadow]           = ImVec4(0.00f, 0.00f, 0.00f, 0.00f);
+    colors[ImGuiCol_FrameBg]                = ImVec4(1.00f, 1.00f, 1.00f, 1.00f);
+    colors[ImGuiCol_FrameBgHovered]         = ImVec4(0.26f, 0.59f, 0.98f, 0.40f);
+    colors[ImGuiCol_FrameBgActive]          = ImVec4(0.26f, 0.59f, 0.98f, 0.67f);
+    colors[ImGuiCol_TitleBg]                = ImVec4(0.96f, 0.96f, 0.96f, 1.00f);
+    colors[ImGuiCol_TitleBgActive]          = ImVec4(0.82f, 0.82f, 0.82f, 1.00f);
+    colors[ImGuiCol_TitleBgCollapsed]       = ImVec4(1.00f, 1.00f, 1.00f, 0.51f);
+    colors[ImGuiCol_MenuBarBg]              = ImVec4(0.86f, 0.86f, 0.86f, 1.00f);
+    colors[ImGuiCol_ScrollbarBg]            = ImVec4(0.98f, 0.98f, 0.98f, 0.53f);
+    colors[ImGuiCol_ScrollbarGrab]          = ImVec4(0.69f, 0.69f, 0.69f, 0.80f);
+    colors[ImGuiCol_ScrollbarGrabHovered]   = ImVec4(0.49f, 0.49f, 0.49f, 0.80f);
+    colors[ImGuiCol_ScrollbarGrabActive]    = ImVec4(0.49f, 0.49f, 0.49f, 1.00f);
+    colors[ImGuiCol_CheckMark]              = ImVec4(0.26f, 0.59f, 0.98f, 1.00f);
+    colors[ImGuiCol_SliderGrab]             = ImVec4(0.26f, 0.59f, 0.98f, 0.78f);
+    colors[ImGuiCol_SliderGrabActive]       = ImVec4(0.46f, 0.54f, 0.80f, 0.60f);
+    colors[ImGuiCol_Button]                 = ImVec4(0.26f, 0.59f, 0.98f, 0.40f);
+    colors[ImGuiCol_ButtonHovered]          = ImVec4(0.26f, 0.59f, 0.98f, 1.00f);
+    colors[ImGuiCol_ButtonActive]           = ImVec4(0.06f, 0.53f, 0.98f, 1.00f);
+    colors[ImGuiCol_Header]                 = ImVec4(0.26f, 0.59f, 0.98f, 0.31f);
+    colors[ImGuiCol_HeaderHovered]          = ImVec4(0.26f, 0.59f, 0.98f, 0.80f);
+    colors[ImGuiCol_HeaderActive]           = ImVec4(0.26f, 0.59f, 0.98f, 1.00f);
+    colors[ImGuiCol_Separator]              = ImVec4(0.39f, 0.39f, 0.39f, 0.62f);
+    colors[ImGuiCol_SeparatorHovered]       = ImVec4(0.14f, 0.44f, 0.80f, 0.78f);
+    colors[ImGuiCol_SeparatorActive]        = ImVec4(0.14f, 0.44f, 0.80f, 1.00f);
+    colors[ImGuiCol_ResizeGrip]             = ImVec4(0.35f, 0.35f, 0.35f, 0.17f);
+    colors[ImGuiCol_ResizeGripHovered]      = ImVec4(0.26f, 0.59f, 0.98f, 0.67f);
+    colors[ImGuiCol_ResizeGripActive]       = ImVec4(0.26f, 0.59f, 0.98f, 0.95f);
+    colors[ImGuiCol_Tab]                    = ImLerp(colors[ImGuiCol_Header],       colors[ImGuiCol_TitleBgActive], 0.90f);
+    colors[ImGuiCol_TabHovered]             = colors[ImGuiCol_HeaderHovered];
+    colors[ImGuiCol_TabActive]              = ImLerp(colors[ImGuiCol_HeaderActive], colors[ImGuiCol_TitleBgActive], 0.60f);
+    colors[ImGuiCol_TabUnfocused]           = ImLerp(colors[ImGuiCol_Tab],          colors[ImGuiCol_TitleBg], 0.80f);
+    colors[ImGuiCol_TabUnfocusedActive]     = ImLerp(colors[ImGuiCol_TabActive],    colors[ImGuiCol_TitleBg], 0.40f);
+    colors[ImGuiCol_PlotLines]              = ImVec4(0.39f, 0.39f, 0.39f, 1.00f);
+    colors[ImGuiCol_PlotLinesHovered]       = ImVec4(1.00f, 0.43f, 0.35f, 1.00f);
+    colors[ImGuiCol_PlotHistogram]          = ImVec4(0.90f, 0.70f, 0.00f, 1.00f);
+    colors[ImGuiCol_PlotHistogramHovered]   = ImVec4(1.00f, 0.45f, 0.00f, 1.00f);
+    colors[ImGuiCol_TableHeaderBg]          = ImVec4(0.78f, 0.87f, 0.98f, 1.00f);
+    colors[ImGuiCol_TableBorderStrong]      = ImVec4(0.57f, 0.57f, 0.64f, 1.00f);   // Prefer using Alpha=1.0 here
+    colors[ImGuiCol_TableBorderLight]       = ImVec4(0.68f, 0.68f, 0.74f, 1.00f);   // Prefer using Alpha=1.0 here
+    colors[ImGuiCol_TableRowBg]             = ImVec4(0.00f, 0.00f, 0.00f, 0.00f);
+    colors[ImGuiCol_TableRowBgAlt]          = ImVec4(0.30f, 0.30f, 0.30f, 0.09f);
+    colors[ImGuiCol_TextSelectedBg]         = ImVec4(0.26f, 0.59f, 0.98f, 0.35f);
+    colors[ImGuiCol_DragDropTarget]         = ImVec4(0.26f, 0.59f, 0.98f, 0.95f);
+    colors[ImGuiCol_NavHighlight]           = colors[ImGuiCol_HeaderHovered];
+    colors[ImGuiCol_NavWindowingHighlight]  = ImVec4(0.70f, 0.70f, 0.70f, 0.70f);
+    colors[ImGuiCol_NavWindowingDimBg]      = ImVec4(0.20f, 0.20f, 0.20f, 0.20f);
+    colors[ImGuiCol_ModalWindowDimBg]       = ImVec4(0.20f, 0.20f, 0.20f, 0.35f);
+}
+
+//-----------------------------------------------------------------------------
+// [SECTION] ImDrawList
+//-----------------------------------------------------------------------------
+
+ImDrawListSharedData::ImDrawListSharedData()
+{
+    memset(this, 0, sizeof(*this));
+    for (int i = 0; i < IM_ARRAYSIZE(ArcFastVtx); i++)
+    {
+        const float a = ((float)i * 2 * IM_PI) / (float)IM_ARRAYSIZE(ArcFastVtx);
+        ArcFastVtx[i] = ImVec2(ImCos(a), ImSin(a));
+    }
+    ArcFastRadiusCutoff = IM_DRAWLIST_CIRCLE_AUTO_SEGMENT_CALC_R(IM_DRAWLIST_ARCFAST_SAMPLE_MAX, CircleSegmentMaxError);
+}
+
+void ImDrawListSharedData::SetCircleTessellationMaxError(float max_error)
+{
+    if (CircleSegmentMaxError == max_error)
+        return;
+
+    IM_ASSERT(max_error > 0.0f);
+    CircleSegmentMaxError = max_error;
+    for (int i = 0; i < IM_ARRAYSIZE(CircleSegmentCounts); i++)
+    {
+        const float radius = (float)i;
+        CircleSegmentCounts[i] = (ImU8)((i > 0) ? IM_DRAWLIST_CIRCLE_AUTO_SEGMENT_CALC(radius, CircleSegmentMaxError) : IM_DRAWLIST_ARCFAST_SAMPLE_MAX);
+    }
+    ArcFastRadiusCutoff = IM_DRAWLIST_CIRCLE_AUTO_SEGMENT_CALC_R(IM_DRAWLIST_ARCFAST_SAMPLE_MAX, CircleSegmentMaxError);
+}
+
+// Initialize before use in a new frame. We always have a command ready in the buffer.
+void ImDrawList::_ResetForNewFrame()
+{
+    // Verify that the ImDrawCmd fields we want to memcmp() are contiguous in memory.
+    IM_STATIC_ASSERT(IM_OFFSETOF(ImDrawCmd, ClipRect) == 0);
+    IM_STATIC_ASSERT(IM_OFFSETOF(ImDrawCmd, TextureId) == sizeof(ImVec4));
+    IM_STATIC_ASSERT(IM_OFFSETOF(ImDrawCmd, VtxOffset) == sizeof(ImVec4) + sizeof(ImTextureID));
+
+    CmdBuffer.resize(0);
+    IdxBuffer.resize(0);
+    VtxBuffer.resize(0);
+    Flags = _Data->InitialFlags;
+    memset(&_CmdHeader, 0, sizeof(_CmdHeader));
+    _VtxCurrentIdx = 0;
+    _VtxWritePtr = NULL;
+    _IdxWritePtr = NULL;
+    _ClipRectStack.resize(0);
+    _TextureIdStack.resize(0);
+    _Path.resize(0);
+    _Splitter.Clear();
+    CmdBuffer.push_back(ImDrawCmd());
+    _FringeScale = 1.0f;
+}
+
+void ImDrawList::_ClearFreeMemory()
+{
+    CmdBuffer.clear();
+    IdxBuffer.clear();
+    VtxBuffer.clear();
+    Flags = ImDrawListFlags_None;
+    _VtxCurrentIdx = 0;
+    _VtxWritePtr = NULL;
+    _IdxWritePtr = NULL;
+    _ClipRectStack.clear();
+    _TextureIdStack.clear();
+    _Path.clear();
+    _Splitter.ClearFreeMemory();
+}
+
+ImDrawList* ImDrawList::CloneOutput() const
+{
+    ImDrawList* dst = IM_NEW(ImDrawList(_Data));
+    dst->CmdBuffer = CmdBuffer;
+    dst->IdxBuffer = IdxBuffer;
+    dst->VtxBuffer = VtxBuffer;
+    dst->Flags = Flags;
+    return dst;
+}
+
+void ImDrawList::AddDrawCmd()
+{
+    ImDrawCmd draw_cmd;
+    draw_cmd.ClipRect = _CmdHeader.ClipRect;    // Same as calling ImDrawCmd_HeaderCopy()
+    draw_cmd.TextureId = _CmdHeader.TextureId;
+    draw_cmd.VtxOffset = _CmdHeader.VtxOffset;
+    draw_cmd.IdxOffset = IdxBuffer.Size;
+
+    IM_ASSERT(draw_cmd.ClipRect.x <= draw_cmd.ClipRect.z && draw_cmd.ClipRect.y <= draw_cmd.ClipRect.w);
+    CmdBuffer.push_back(draw_cmd);
+}
+
+// Pop trailing draw command (used before merging or presenting to user)
+// Note that this leaves the ImDrawList in a state unfit for further commands, as most code assume that CmdBuffer.Size > 0 && CmdBuffer.back().UserCallback == NULL
+void ImDrawList::_PopUnusedDrawCmd()
+{
+    if (CmdBuffer.Size == 0)
+        return;
+    ImDrawCmd* curr_cmd = &CmdBuffer.Data[CmdBuffer.Size - 1];
+    if (curr_cmd->ElemCount == 0 && curr_cmd->UserCallback == NULL)
+        CmdBuffer.pop_back();
+}
+
+void ImDrawList::AddCallback(ImDrawCallback callback, void* callback_data)
+{
+    IM_ASSERT_PARANOID(CmdBuffer.Size > 0);
+    ImDrawCmd* curr_cmd = &CmdBuffer.Data[CmdBuffer.Size - 1];
+    IM_ASSERT(curr_cmd->UserCallback == NULL);
+    if (curr_cmd->ElemCount != 0)
+    {
+        AddDrawCmd();
+        curr_cmd = &CmdBuffer.Data[CmdBuffer.Size - 1];
+    }
+    curr_cmd->UserCallback = callback;
+    curr_cmd->UserCallbackData = callback_data;
+
+    AddDrawCmd(); // Force a new command after us (see comment below)
+}
+
+// Compare ClipRect, TextureId and VtxOffset with a single memcmp()
+#define ImDrawCmd_HeaderSize                            (IM_OFFSETOF(ImDrawCmd, VtxOffset) + sizeof(unsigned int))
+#define ImDrawCmd_HeaderCompare(CMD_LHS, CMD_RHS)       (memcmp(CMD_LHS, CMD_RHS, ImDrawCmd_HeaderSize))    // Compare ClipRect, TextureId, VtxOffset
+#define ImDrawCmd_HeaderCopy(CMD_DST, CMD_SRC)          (memcpy(CMD_DST, CMD_SRC, ImDrawCmd_HeaderSize))    // Copy ClipRect, TextureId, VtxOffset
+#define ImDrawCmd_AreSequentialIdxOffset(CMD_0, CMD_1)  (CMD_0->IdxOffset + CMD_0->ElemCount == CMD_1->IdxOffset)
+
+// Try to merge two last draw commands
+void ImDrawList::_TryMergeDrawCmds()
+{
+    IM_ASSERT_PARANOID(CmdBuffer.Size > 0);
+    ImDrawCmd* curr_cmd = &CmdBuffer.Data[CmdBuffer.Size - 1];
+    ImDrawCmd* prev_cmd = curr_cmd - 1;
+    if (ImDrawCmd_HeaderCompare(curr_cmd, prev_cmd) == 0 && ImDrawCmd_AreSequentialIdxOffset(prev_cmd, curr_cmd) && curr_cmd->UserCallback == NULL && prev_cmd->UserCallback == NULL)
+    {
+        prev_cmd->ElemCount += curr_cmd->ElemCount;
+        CmdBuffer.pop_back();
+    }
+}
+
+// Our scheme may appears a bit unusual, basically we want the most-common calls AddLine AddRect etc. to not have to perform any check so we always have a command ready in the stack.
+// The cost of figuring out if a new command has to be added or if we can merge is paid in those Update** functions only.
+void ImDrawList::_OnChangedClipRect()
+{
+    // If current command is used with different settings we need to add a new command
+    IM_ASSERT_PARANOID(CmdBuffer.Size > 0);
+    ImDrawCmd* curr_cmd = &CmdBuffer.Data[CmdBuffer.Size - 1];
+    if (curr_cmd->ElemCount != 0 && memcmp(&curr_cmd->ClipRect, &_CmdHeader.ClipRect, sizeof(ImVec4)) != 0)
+    {
+        AddDrawCmd();
+        return;
+    }
+    IM_ASSERT(curr_cmd->UserCallback == NULL);
+
+    // Try to merge with previous command if it matches, else use current command
+    ImDrawCmd* prev_cmd = curr_cmd - 1;
+    if (curr_cmd->ElemCount == 0 && CmdBuffer.Size > 1 && ImDrawCmd_HeaderCompare(&_CmdHeader, prev_cmd) == 0 && ImDrawCmd_AreSequentialIdxOffset(prev_cmd, curr_cmd) && prev_cmd->UserCallback == NULL)
+    {
+        CmdBuffer.pop_back();
+        return;
+    }
+
+    curr_cmd->ClipRect = _CmdHeader.ClipRect;
+}
+
+void ImDrawList::_OnChangedTextureID()
+{
+    // If current command is used with different settings we need to add a new command
+    IM_ASSERT_PARANOID(CmdBuffer.Size > 0);
+    ImDrawCmd* curr_cmd = &CmdBuffer.Data[CmdBuffer.Size - 1];
+    if (curr_cmd->ElemCount != 0 && curr_cmd->TextureId != _CmdHeader.TextureId)
+    {
+        AddDrawCmd();
+        return;
+    }
+    IM_ASSERT(curr_cmd->UserCallback == NULL);
+
+    // Try to merge with previous command if it matches, else use current command
+    ImDrawCmd* prev_cmd = curr_cmd - 1;
+    if (curr_cmd->ElemCount == 0 && CmdBuffer.Size > 1 && ImDrawCmd_HeaderCompare(&_CmdHeader, prev_cmd) == 0 && ImDrawCmd_AreSequentialIdxOffset(prev_cmd, curr_cmd) && prev_cmd->UserCallback == NULL)
+    {
+        CmdBuffer.pop_back();
+        return;
+    }
+
+    curr_cmd->TextureId = _CmdHeader.TextureId;
+}
+
+void ImDrawList::_OnChangedVtxOffset()
+{
+    // We don't need to compare curr_cmd->VtxOffset != _CmdHeader.VtxOffset because we know it'll be different at the time we call this.
+    _VtxCurrentIdx = 0;
+    IM_ASSERT_PARANOID(CmdBuffer.Size > 0);
+    ImDrawCmd* curr_cmd = &CmdBuffer.Data[CmdBuffer.Size - 1];
+    //IM_ASSERT(curr_cmd->VtxOffset != _CmdHeader.VtxOffset); // See #3349
+    if (curr_cmd->ElemCount != 0)
+    {
+        AddDrawCmd();
+        return;
+    }
+    IM_ASSERT(curr_cmd->UserCallback == NULL);
+    curr_cmd->VtxOffset = _CmdHeader.VtxOffset;
+}
+
+int ImDrawList::_CalcCircleAutoSegmentCount(float radius) const
+{
+    // Automatic segment count
+    const int radius_idx = (int)(radius + 0.999999f); // ceil to never reduce accuracy
+    if (radius_idx < IM_ARRAYSIZE(_Data->CircleSegmentCounts))
+        return _Data->CircleSegmentCounts[radius_idx]; // Use cached value
+    else
+        return IM_DRAWLIST_CIRCLE_AUTO_SEGMENT_CALC(radius, _Data->CircleSegmentMaxError);
+}
+
+// Render-level scissoring. This is passed down to your render function but not used for CPU-side coarse clipping. Prefer using higher-level ImGui::PushClipRect() to affect logic (hit-testing and widget culling)
+void ImDrawList::PushClipRect(const ImVec2& cr_min, const ImVec2& cr_max, bool intersect_with_current_clip_rect)
+{
+    ImVec4 cr(cr_min.x, cr_min.y, cr_max.x, cr_max.y);
+    if (intersect_with_current_clip_rect)
+    {
+        ImVec4 current = _CmdHeader.ClipRect;
+        if (cr.x < current.x) cr.x = current.x;
+        if (cr.y < current.y) cr.y = current.y;
+        if (cr.z > current.z) cr.z = current.z;
+        if (cr.w > current.w) cr.w = current.w;
+    }
+    cr.z = ImMax(cr.x, cr.z);
+    cr.w = ImMax(cr.y, cr.w);
+
+    _ClipRectStack.push_back(cr);
+    _CmdHeader.ClipRect = cr;
+    _OnChangedClipRect();
+}
+
+void ImDrawList::PushClipRectFullScreen()
+{
+    PushClipRect(ImVec2(_Data->ClipRectFullscreen.x, _Data->ClipRectFullscreen.y), ImVec2(_Data->ClipRectFullscreen.z, _Data->ClipRectFullscreen.w));
+}
+
+void ImDrawList::PopClipRect()
+{
+    _ClipRectStack.pop_back();
+    _CmdHeader.ClipRect = (_ClipRectStack.Size == 0) ? _Data->ClipRectFullscreen : _ClipRectStack.Data[_ClipRectStack.Size - 1];
+    _OnChangedClipRect();
+}
+
+void ImDrawList::PushTextureID(ImTextureID texture_id)
+{
+    _TextureIdStack.push_back(texture_id);
+    _CmdHeader.TextureId = texture_id;
+    _OnChangedTextureID();
+}
+
+void ImDrawList::PopTextureID()
+{
+    _TextureIdStack.pop_back();
+    _CmdHeader.TextureId = (_TextureIdStack.Size == 0) ? (ImTextureID)NULL : _TextureIdStack.Data[_TextureIdStack.Size - 1];
+    _OnChangedTextureID();
+}
+
+// Reserve space for a number of vertices and indices.
+// You must finish filling your reserved data before calling PrimReserve() again, as it may reallocate or
+// submit the intermediate results. PrimUnreserve() can be used to release unused allocations.
+void ImDrawList::PrimReserve(int idx_count, int vtx_count)
+{
+    // Large mesh support (when enabled)
+    IM_ASSERT_PARANOID(idx_count >= 0 && vtx_count >= 0);
+    if (sizeof(ImDrawIdx) == 2 && (_VtxCurrentIdx + vtx_count >= (1 << 16)) && (Flags & ImDrawListFlags_AllowVtxOffset))
+    {
+        // FIXME: In theory we should be testing that vtx_count <64k here.
+        // In practice, RenderText() relies on reserving ahead for a worst case scenario so it is currently useful for us
+        // to not make that check until we rework the text functions to handle clipping and large horizontal lines better.
+        _CmdHeader.VtxOffset = VtxBuffer.Size;
+        _OnChangedVtxOffset();
+    }
+
+    ImDrawCmd* draw_cmd = &CmdBuffer.Data[CmdBuffer.Size - 1];
+    draw_cmd->ElemCount += idx_count;
+
+    int vtx_buffer_old_size = VtxBuffer.Size;
+    VtxBuffer.resize(vtx_buffer_old_size + vtx_count);
+    _VtxWritePtr = VtxBuffer.Data + vtx_buffer_old_size;
+
+    int idx_buffer_old_size = IdxBuffer.Size;
+    IdxBuffer.resize(idx_buffer_old_size + idx_count);
+    _IdxWritePtr = IdxBuffer.Data + idx_buffer_old_size;
+}
+
+// Release the a number of reserved vertices/indices from the end of the last reservation made with PrimReserve().
+void ImDrawList::PrimUnreserve(int idx_count, int vtx_count)
+{
+    IM_ASSERT_PARANOID(idx_count >= 0 && vtx_count >= 0);
+
+    ImDrawCmd* draw_cmd = &CmdBuffer.Data[CmdBuffer.Size - 1];
+    draw_cmd->ElemCount -= idx_count;
+    VtxBuffer.shrink(VtxBuffer.Size - vtx_count);
+    IdxBuffer.shrink(IdxBuffer.Size - idx_count);
+}
+
+// Fully unrolled with inline call to keep our debug builds decently fast.
+void ImDrawList::PrimRect(const ImVec2& a, const ImVec2& c, ImU32 col)
+{
+    ImVec2 b(c.x, a.y), d(a.x, c.y), uv(_Data->TexUvWhitePixel);
+    ImDrawIdx idx = (ImDrawIdx)_VtxCurrentIdx;
+    _IdxWritePtr[0] = idx; _IdxWritePtr[1] = (ImDrawIdx)(idx+1); _IdxWritePtr[2] = (ImDrawIdx)(idx+2);
+    _IdxWritePtr[3] = idx; _IdxWritePtr[4] = (ImDrawIdx)(idx+2); _IdxWritePtr[5] = (ImDrawIdx)(idx+3);
+    _VtxWritePtr[0].pos = a; _VtxWritePtr[0].uv = uv; _VtxWritePtr[0].col = col;
+    _VtxWritePtr[1].pos = b; _VtxWritePtr[1].uv = uv; _VtxWritePtr[1].col = col;
+    _VtxWritePtr[2].pos = c; _VtxWritePtr[2].uv = uv; _VtxWritePtr[2].col = col;
+    _VtxWritePtr[3].pos = d; _VtxWritePtr[3].uv = uv; _VtxWritePtr[3].col = col;
+    _VtxWritePtr += 4;
+    _VtxCurrentIdx += 4;
+    _IdxWritePtr += 6;
+}
+
+void ImDrawList::PrimRectUV(const ImVec2& a, const ImVec2& c, const ImVec2& uv_a, const ImVec2& uv_c, ImU32 col)
+{
+    ImVec2 b(c.x, a.y), d(a.x, c.y), uv_b(uv_c.x, uv_a.y), uv_d(uv_a.x, uv_c.y);
+    ImDrawIdx idx = (ImDrawIdx)_VtxCurrentIdx;
+    _IdxWritePtr[0] = idx; _IdxWritePtr[1] = (ImDrawIdx)(idx+1); _IdxWritePtr[2] = (ImDrawIdx)(idx+2);
+    _IdxWritePtr[3] = idx; _IdxWritePtr[4] = (ImDrawIdx)(idx+2); _IdxWritePtr[5] = (ImDrawIdx)(idx+3);
+    _VtxWritePtr[0].pos = a; _VtxWritePtr[0].uv = uv_a; _VtxWritePtr[0].col = col;
+    _VtxWritePtr[1].pos = b; _VtxWritePtr[1].uv = uv_b; _VtxWritePtr[1].col = col;
+    _VtxWritePtr[2].pos = c; _VtxWritePtr[2].uv = uv_c; _VtxWritePtr[2].col = col;
+    _VtxWritePtr[3].pos = d; _VtxWritePtr[3].uv = uv_d; _VtxWritePtr[3].col = col;
+    _VtxWritePtr += 4;
+    _VtxCurrentIdx += 4;
+    _IdxWritePtr += 6;
+}
+
+void ImDrawList::PrimQuadUV(const ImVec2& a, const ImVec2& b, const ImVec2& c, const ImVec2& d, const ImVec2& uv_a, const ImVec2& uv_b, const ImVec2& uv_c, const ImVec2& uv_d, ImU32 col)
+{
+    ImDrawIdx idx = (ImDrawIdx)_VtxCurrentIdx;
+    _IdxWritePtr[0] = idx; _IdxWritePtr[1] = (ImDrawIdx)(idx+1); _IdxWritePtr[2] = (ImDrawIdx)(idx+2);
+    _IdxWritePtr[3] = idx; _IdxWritePtr[4] = (ImDrawIdx)(idx+2); _IdxWritePtr[5] = (ImDrawIdx)(idx+3);
+    _VtxWritePtr[0].pos = a; _VtxWritePtr[0].uv = uv_a; _VtxWritePtr[0].col = col;
+    _VtxWritePtr[1].pos = b; _VtxWritePtr[1].uv = uv_b; _VtxWritePtr[1].col = col;
+    _VtxWritePtr[2].pos = c; _VtxWritePtr[2].uv = uv_c; _VtxWritePtr[2].col = col;
+    _VtxWritePtr[3].pos = d; _VtxWritePtr[3].uv = uv_d; _VtxWritePtr[3].col = col;
+    _VtxWritePtr += 4;
+    _VtxCurrentIdx += 4;
+    _IdxWritePtr += 6;
+}
+
+// On AddPolyline() and AddConvexPolyFilled() we intentionally avoid using ImVec2 and superfluous function calls to optimize debug/non-inlined builds.
+// - Those macros expects l-values and need to be used as their own statement.
+// - Those macros are intentionally not surrounded by the 'do {} while (0)' idiom because even that translates to runtime with debug compilers.
+#define IM_NORMALIZE2F_OVER_ZERO(VX,VY)     { float d2 = VX*VX + VY*VY; if (d2 > 0.0f) { float inv_len = ImRsqrt(d2); VX *= inv_len; VY *= inv_len; } } (void)0
+#define IM_FIXNORMAL2F_MAX_INVLEN2          100.0f // 500.0f (see #4053, #3366)
+#define IM_FIXNORMAL2F(VX,VY)               { float d2 = VX*VX + VY*VY; if (d2 > 0.000001f) { float inv_len2 = 1.0f / d2; if (inv_len2 > IM_FIXNORMAL2F_MAX_INVLEN2) inv_len2 = IM_FIXNORMAL2F_MAX_INVLEN2; VX *= inv_len2; VY *= inv_len2; } } (void)0
+
+// TODO: Thickness anti-aliased lines cap are missing their AA fringe.
+// We avoid using the ImVec2 math operators here to reduce cost to a minimum for debug/non-inlined builds.
+void ImDrawList::AddPolyline(const ImVec2* points, const int points_count, ImU32 col, ImDrawFlags flags, float thickness)
+{
+    if (points_count < 2)
+        return;
+
+    const bool closed = (flags & ImDrawFlags_Closed) != 0;
+    const ImVec2 opaque_uv = _Data->TexUvWhitePixel;
+    const int count = closed ? points_count : points_count - 1; // The number of line segments we need to draw
+    const bool thick_line = (thickness > _FringeScale);
+
+    if (Flags & ImDrawListFlags_AntiAliasedLines)
+    {
+        // Anti-aliased stroke
+        const float AA_SIZE = _FringeScale;
+        const ImU32 col_trans = col & ~IM_COL32_A_MASK;
+
+        // Thicknesses <1.0 should behave like thickness 1.0
+        thickness = ImMax(thickness, 1.0f);
+        const int integer_thickness = (int)thickness;
+        const float fractional_thickness = thickness - integer_thickness;
+
+        // Do we want to draw this line using a texture?
+        // - For now, only draw integer-width lines using textures to avoid issues with the way scaling occurs, could be improved.
+        // - If AA_SIZE is not 1.0f we cannot use the texture path.
+        const bool use_texture = (Flags & ImDrawListFlags_AntiAliasedLinesUseTex) && (integer_thickness < IM_DRAWLIST_TEX_LINES_WIDTH_MAX) && (fractional_thickness <= 0.00001f) && (AA_SIZE == 1.0f);
+
+        // We should never hit this, because NewFrame() doesn't set ImDrawListFlags_AntiAliasedLinesUseTex unless ImFontAtlasFlags_NoBakedLines is off
+        IM_ASSERT_PARANOID(!use_texture || !(_Data->Font->ContainerAtlas->Flags & ImFontAtlasFlags_NoBakedLines));
+
+        const int idx_count = use_texture ? (count * 6) : (thick_line ? count * 18 : count * 12);
+        const int vtx_count = use_texture ? (points_count * 2) : (thick_line ? points_count * 4 : points_count * 3);
+        PrimReserve(idx_count, vtx_count);
+
+        // Temporary buffer
+        // The first <points_count> items are normals at each line point, then after that there are either 2 or 4 temp points for each line point
+        ImVec2* temp_normals = (ImVec2*)alloca(points_count * ((use_texture || !thick_line) ? 3 : 5) * sizeof(ImVec2)); //-V630
+        ImVec2* temp_points = temp_normals + points_count;
+
+        // Calculate normals (tangents) for each line segment
+        for (int i1 = 0; i1 < count; i1++)
+        {
+            const int i2 = (i1 + 1) == points_count ? 0 : i1 + 1;
+            float dx = points[i2].x - points[i1].x;
+            float dy = points[i2].y - points[i1].y;
+            IM_NORMALIZE2F_OVER_ZERO(dx, dy);
+            temp_normals[i1].x = dy;
+            temp_normals[i1].y = -dx;
+        }
+        if (!closed)
+            temp_normals[points_count - 1] = temp_normals[points_count - 2];
+
+        // If we are drawing a one-pixel-wide line without a texture, or a textured line of any width, we only need 2 or 3 vertices per point
+        if (use_texture || !thick_line)
+        {
+            // [PATH 1] Texture-based lines (thick or non-thick)
+            // [PATH 2] Non texture-based lines (non-thick)
+
+            // The width of the geometry we need to draw - this is essentially <thickness> pixels for the line itself, plus "one pixel" for AA.
+            // - In the texture-based path, we don't use AA_SIZE here because the +1 is tied to the generated texture
+            //   (see ImFontAtlasBuildRenderLinesTexData() function), and so alternate values won't work without changes to that code.
+            // - In the non texture-based paths, we would allow AA_SIZE to potentially be != 1.0f with a patch (e.g. fringe_scale patch to
+            //   allow scaling geometry while preserving one-screen-pixel AA fringe).
+            const float half_draw_size = use_texture ? ((thickness * 0.5f) + 1) : AA_SIZE;
+
+            // If line is not closed, the first and last points need to be generated differently as there are no normals to blend
+            if (!closed)
+            {
+                temp_points[0] = points[0] + temp_normals[0] * half_draw_size;
+                temp_points[1] = points[0] - temp_normals[0] * half_draw_size;
+                temp_points[(points_count-1)*2+0] = points[points_count-1] + temp_normals[points_count-1] * half_draw_size;
+                temp_points[(points_count-1)*2+1] = points[points_count-1] - temp_normals[points_count-1] * half_draw_size;
+            }
+
+            // Generate the indices to form a number of triangles for each line segment, and the vertices for the line edges
+            // This takes points n and n+1 and writes into n+1, with the first point in a closed line being generated from the final one (as n+1 wraps)
+            // FIXME-OPT: Merge the different loops, possibly remove the temporary buffer.
+            unsigned int idx1 = _VtxCurrentIdx; // Vertex index for start of line segment
+            for (int i1 = 0; i1 < count; i1++) // i1 is the first point of the line segment
+            {
+                const int i2 = (i1 + 1) == points_count ? 0 : i1 + 1; // i2 is the second point of the line segment
+                const unsigned int idx2 = ((i1 + 1) == points_count) ? _VtxCurrentIdx : (idx1 + (use_texture ? 2 : 3)); // Vertex index for end of segment
+
+                // Average normals
+                float dm_x = (temp_normals[i1].x + temp_normals[i2].x) * 0.5f;
+                float dm_y = (temp_normals[i1].y + temp_normals[i2].y) * 0.5f;
+                IM_FIXNORMAL2F(dm_x, dm_y);
+                dm_x *= half_draw_size; // dm_x, dm_y are offset to the outer edge of the AA area
+                dm_y *= half_draw_size;
+
+                // Add temporary vertexes for the outer edges
+                ImVec2* out_vtx = &temp_points[i2 * 2];
+                out_vtx[0].x = points[i2].x + dm_x;
+                out_vtx[0].y = points[i2].y + dm_y;
+                out_vtx[1].x = points[i2].x - dm_x;
+                out_vtx[1].y = points[i2].y - dm_y;
+
+                if (use_texture)
+                {
+                    // Add indices for two triangles
+                    _IdxWritePtr[0] = (ImDrawIdx)(idx2 + 0); _IdxWritePtr[1] = (ImDrawIdx)(idx1 + 0); _IdxWritePtr[2] = (ImDrawIdx)(idx1 + 1); // Right tri
+                    _IdxWritePtr[3] = (ImDrawIdx)(idx2 + 1); _IdxWritePtr[4] = (ImDrawIdx)(idx1 + 1); _IdxWritePtr[5] = (ImDrawIdx)(idx2 + 0); // Left tri
+                    _IdxWritePtr += 6;
+                }
+                else
+                {
+                    // Add indexes for four triangles
+                    _IdxWritePtr[0] = (ImDrawIdx)(idx2 + 0); _IdxWritePtr[1] = (ImDrawIdx)(idx1 + 0); _IdxWritePtr[2] = (ImDrawIdx)(idx1 + 2); // Right tri 1
+                    _IdxWritePtr[3] = (ImDrawIdx)(idx1 + 2); _IdxWritePtr[4] = (ImDrawIdx)(idx2 + 2); _IdxWritePtr[5] = (ImDrawIdx)(idx2 + 0); // Right tri 2
+                    _IdxWritePtr[6] = (ImDrawIdx)(idx2 + 1); _IdxWritePtr[7] = (ImDrawIdx)(idx1 + 1); _IdxWritePtr[8] = (ImDrawIdx)(idx1 + 0); // Left tri 1
+                    _IdxWritePtr[9] = (ImDrawIdx)(idx1 + 0); _IdxWritePtr[10] = (ImDrawIdx)(idx2 + 0); _IdxWritePtr[11] = (ImDrawIdx)(idx2 + 1); // Left tri 2
+                    _IdxWritePtr += 12;
+                }
+
+                idx1 = idx2;
+            }
+
+            // Add vertexes for each point on the line
+            if (use_texture)
+            {
+                // If we're using textures we only need to emit the left/right edge vertices
+                ImVec4 tex_uvs = _Data->TexUvLines[integer_thickness];
+                /*if (fractional_thickness != 0.0f) // Currently always zero when use_texture==false!
+                {
+                    const ImVec4 tex_uvs_1 = _Data->TexUvLines[integer_thickness + 1];
+                    tex_uvs.x = tex_uvs.x + (tex_uvs_1.x - tex_uvs.x) * fractional_thickness; // inlined ImLerp()
+                    tex_uvs.y = tex_uvs.y + (tex_uvs_1.y - tex_uvs.y) * fractional_thickness;
+                    tex_uvs.z = tex_uvs.z + (tex_uvs_1.z - tex_uvs.z) * fractional_thickness;
+                    tex_uvs.w = tex_uvs.w + (tex_uvs_1.w - tex_uvs.w) * fractional_thickness;
+                }*/
+                ImVec2 tex_uv0(tex_uvs.x, tex_uvs.y);
+                ImVec2 tex_uv1(tex_uvs.z, tex_uvs.w);
+                for (int i = 0; i < points_count; i++)
+                {
+                    _VtxWritePtr[0].pos = temp_points[i * 2 + 0]; _VtxWritePtr[0].uv = tex_uv0; _VtxWritePtr[0].col = col; // Left-side outer edge
+                    _VtxWritePtr[1].pos = temp_points[i * 2 + 1]; _VtxWritePtr[1].uv = tex_uv1; _VtxWritePtr[1].col = col; // Right-side outer edge
+                    _VtxWritePtr += 2;
+                }
+            }
+            else
+            {
+                // If we're not using a texture, we need the center vertex as well
+                for (int i = 0; i < points_count; i++)
+                {
+                    _VtxWritePtr[0].pos = points[i];              _VtxWritePtr[0].uv = opaque_uv; _VtxWritePtr[0].col = col;       // Center of line
+                    _VtxWritePtr[1].pos = temp_points[i * 2 + 0]; _VtxWritePtr[1].uv = opaque_uv; _VtxWritePtr[1].col = col_trans; // Left-side outer edge
+                    _VtxWritePtr[2].pos = temp_points[i * 2 + 1]; _VtxWritePtr[2].uv = opaque_uv; _VtxWritePtr[2].col = col_trans; // Right-side outer edge
+                    _VtxWritePtr += 3;
+                }
+            }
+        }
+        else
+        {
+            // [PATH 2] Non texture-based lines (thick): we need to draw the solid line core and thus require four vertices per point
+            const float half_inner_thickness = (thickness - AA_SIZE) * 0.5f;
+
+            // If line is not closed, the first and last points need to be generated differently as there are no normals to blend
+            if (!closed)
+            {
+                const int points_last = points_count - 1;
+                temp_points[0] = points[0] + temp_normals[0] * (half_inner_thickness + AA_SIZE);
+                temp_points[1] = points[0] + temp_normals[0] * (half_inner_thickness);
+                temp_points[2] = points[0] - temp_normals[0] * (half_inner_thickness);
+                temp_points[3] = points[0] - temp_normals[0] * (half_inner_thickness + AA_SIZE);
+                temp_points[points_last * 4 + 0] = points[points_last] + temp_normals[points_last] * (half_inner_thickness + AA_SIZE);
+                temp_points[points_last * 4 + 1] = points[points_last] + temp_normals[points_last] * (half_inner_thickness);
+                temp_points[points_last * 4 + 2] = points[points_last] - temp_normals[points_last] * (half_inner_thickness);
+                temp_points[points_last * 4 + 3] = points[points_last] - temp_normals[points_last] * (half_inner_thickness + AA_SIZE);
+            }
+
+            // Generate the indices to form a number of triangles for each line segment, and the vertices for the line edges
+            // This takes points n and n+1 and writes into n+1, with the first point in a closed line being generated from the final one (as n+1 wraps)
+            // FIXME-OPT: Merge the different loops, possibly remove the temporary buffer.
+            unsigned int idx1 = _VtxCurrentIdx; // Vertex index for start of line segment
+            for (int i1 = 0; i1 < count; i1++) // i1 is the first point of the line segment
+            {
+                const int i2 = (i1 + 1) == points_count ? 0 : (i1 + 1); // i2 is the second point of the line segment
+                const unsigned int idx2 = (i1 + 1) == points_count ? _VtxCurrentIdx : (idx1 + 4); // Vertex index for end of segment
+
+                // Average normals
+                float dm_x = (temp_normals[i1].x + temp_normals[i2].x) * 0.5f;
+                float dm_y = (temp_normals[i1].y + temp_normals[i2].y) * 0.5f;
+                IM_FIXNORMAL2F(dm_x, dm_y);
+                float dm_out_x = dm_x * (half_inner_thickness + AA_SIZE);
+                float dm_out_y = dm_y * (half_inner_thickness + AA_SIZE);
+                float dm_in_x = dm_x * half_inner_thickness;
+                float dm_in_y = dm_y * half_inner_thickness;
+
+                // Add temporary vertices
+                ImVec2* out_vtx = &temp_points[i2 * 4];
+                out_vtx[0].x = points[i2].x + dm_out_x;
+                out_vtx[0].y = points[i2].y + dm_out_y;
+                out_vtx[1].x = points[i2].x + dm_in_x;
+                out_vtx[1].y = points[i2].y + dm_in_y;
+                out_vtx[2].x = points[i2].x - dm_in_x;
+                out_vtx[2].y = points[i2].y - dm_in_y;
+                out_vtx[3].x = points[i2].x - dm_out_x;
+                out_vtx[3].y = points[i2].y - dm_out_y;
+
+                // Add indexes
+                _IdxWritePtr[0]  = (ImDrawIdx)(idx2 + 1); _IdxWritePtr[1]  = (ImDrawIdx)(idx1 + 1); _IdxWritePtr[2]  = (ImDrawIdx)(idx1 + 2);
+                _IdxWritePtr[3]  = (ImDrawIdx)(idx1 + 2); _IdxWritePtr[4]  = (ImDrawIdx)(idx2 + 2); _IdxWritePtr[5]  = (ImDrawIdx)(idx2 + 1);
+                _IdxWritePtr[6]  = (ImDrawIdx)(idx2 + 1); _IdxWritePtr[7]  = (ImDrawIdx)(idx1 + 1); _IdxWritePtr[8]  = (ImDrawIdx)(idx1 + 0);
+                _IdxWritePtr[9]  = (ImDrawIdx)(idx1 + 0); _IdxWritePtr[10] = (ImDrawIdx)(idx2 + 0); _IdxWritePtr[11] = (ImDrawIdx)(idx2 + 1);
+                _IdxWritePtr[12] = (ImDrawIdx)(idx2 + 2); _IdxWritePtr[13] = (ImDrawIdx)(idx1 + 2); _IdxWritePtr[14] = (ImDrawIdx)(idx1 + 3);
+                _IdxWritePtr[15] = (ImDrawIdx)(idx1 + 3); _IdxWritePtr[16] = (ImDrawIdx)(idx2 + 3); _IdxWritePtr[17] = (ImDrawIdx)(idx2 + 2);
+                _IdxWritePtr += 18;
+
+                idx1 = idx2;
+            }
+
+            // Add vertices
+            for (int i = 0; i < points_count; i++)
+            {
+                _VtxWritePtr[0].pos = temp_points[i * 4 + 0]; _VtxWritePtr[0].uv = opaque_uv; _VtxWritePtr[0].col = col_trans;
+                _VtxWritePtr[1].pos = temp_points[i * 4 + 1]; _VtxWritePtr[1].uv = opaque_uv; _VtxWritePtr[1].col = col;
+                _VtxWritePtr[2].pos = temp_points[i * 4 + 2]; _VtxWritePtr[2].uv = opaque_uv; _VtxWritePtr[2].col = col;
+                _VtxWritePtr[3].pos = temp_points[i * 4 + 3]; _VtxWritePtr[3].uv = opaque_uv; _VtxWritePtr[3].col = col_trans;
+                _VtxWritePtr += 4;
+            }
+        }
+        _VtxCurrentIdx += (ImDrawIdx)vtx_count;
+    }
+    else
+    {
+        // [PATH 4] Non texture-based, Non anti-aliased lines
+        const int idx_count = count * 6;
+        const int vtx_count = count * 4;    // FIXME-OPT: Not sharing edges
+        PrimReserve(idx_count, vtx_count);
+
+        for (int i1 = 0; i1 < count; i1++)
+        {
+            const int i2 = (i1 + 1) == points_count ? 0 : i1 + 1;
+            const ImVec2& p1 = points[i1];
+            const ImVec2& p2 = points[i2];
+
+            float dx = p2.x - p1.x;
+            float dy = p2.y - p1.y;
+            IM_NORMALIZE2F_OVER_ZERO(dx, dy);
+            dx *= (thickness * 0.5f);
+            dy *= (thickness * 0.5f);
+
+            _VtxWritePtr[0].pos.x = p1.x + dy; _VtxWritePtr[0].pos.y = p1.y - dx; _VtxWritePtr[0].uv = opaque_uv; _VtxWritePtr[0].col = col;
+            _VtxWritePtr[1].pos.x = p2.x + dy; _VtxWritePtr[1].pos.y = p2.y - dx; _VtxWritePtr[1].uv = opaque_uv; _VtxWritePtr[1].col = col;
+            _VtxWritePtr[2].pos.x = p2.x - dy; _VtxWritePtr[2].pos.y = p2.y + dx; _VtxWritePtr[2].uv = opaque_uv; _VtxWritePtr[2].col = col;
+            _VtxWritePtr[3].pos.x = p1.x - dy; _VtxWritePtr[3].pos.y = p1.y + dx; _VtxWritePtr[3].uv = opaque_uv; _VtxWritePtr[3].col = col;
+            _VtxWritePtr += 4;
+
+            _IdxWritePtr[0] = (ImDrawIdx)(_VtxCurrentIdx); _IdxWritePtr[1] = (ImDrawIdx)(_VtxCurrentIdx + 1); _IdxWritePtr[2] = (ImDrawIdx)(_VtxCurrentIdx + 2);
+            _IdxWritePtr[3] = (ImDrawIdx)(_VtxCurrentIdx); _IdxWritePtr[4] = (ImDrawIdx)(_VtxCurrentIdx + 2); _IdxWritePtr[5] = (ImDrawIdx)(_VtxCurrentIdx + 3);
+            _IdxWritePtr += 6;
+            _VtxCurrentIdx += 4;
+        }
+    }
+}
+
+// - We intentionally avoid using ImVec2 and its math operators here to reduce cost to a minimum for debug/non-inlined builds.
+// - Filled shapes must always use clockwise winding order. The anti-aliasing fringe depends on it. Counter-clockwise shapes will have "inward" anti-aliasing.
+void ImDrawList::AddConvexPolyFilled(const ImVec2* points, const int points_count, ImU32 col)
+{
+    if (points_count < 3)
+        return;
+
+    const ImVec2 uv = _Data->TexUvWhitePixel;
+
+    if (Flags & ImDrawListFlags_AntiAliasedFill)
+    {
+        // Anti-aliased Fill
+        const float AA_SIZE = _FringeScale;
+        const ImU32 col_trans = col & ~IM_COL32_A_MASK;
+        const int idx_count = (points_count - 2)*3 + points_count * 6;
+        const int vtx_count = (points_count * 2);
+        PrimReserve(idx_count, vtx_count);
+
+        // Add indexes for fill
+        unsigned int vtx_inner_idx = _VtxCurrentIdx;
+        unsigned int vtx_outer_idx = _VtxCurrentIdx + 1;
+        for (int i = 2; i < points_count; i++)
+        {
+            _IdxWritePtr[0] = (ImDrawIdx)(vtx_inner_idx); _IdxWritePtr[1] = (ImDrawIdx)(vtx_inner_idx + ((i - 1) << 1)); _IdxWritePtr[2] = (ImDrawIdx)(vtx_inner_idx + (i << 1));
+            _IdxWritePtr += 3;
+        }
+
+        // Compute normals
+        ImVec2* temp_normals = (ImVec2*)alloca(points_count * sizeof(ImVec2)); //-V630
+        for (int i0 = points_count - 1, i1 = 0; i1 < points_count; i0 = i1++)
+        {
+            const ImVec2& p0 = points[i0];
+            const ImVec2& p1 = points[i1];
+            float dx = p1.x - p0.x;
+            float dy = p1.y - p0.y;
+            IM_NORMALIZE2F_OVER_ZERO(dx, dy);
+            temp_normals[i0].x = dy;
+            temp_normals[i0].y = -dx;
+        }
+
+        for (int i0 = points_count - 1, i1 = 0; i1 < points_count; i0 = i1++)
+        {
+            // Average normals
+            const ImVec2& n0 = temp_normals[i0];
+            const ImVec2& n1 = temp_normals[i1];
+            float dm_x = (n0.x + n1.x) * 0.5f;
+            float dm_y = (n0.y + n1.y) * 0.5f;
+            IM_FIXNORMAL2F(dm_x, dm_y);
+            dm_x *= AA_SIZE * 0.5f;
+            dm_y *= AA_SIZE * 0.5f;
+
+            // Add vertices
+            _VtxWritePtr[0].pos.x = (points[i1].x - dm_x); _VtxWritePtr[0].pos.y = (points[i1].y - dm_y); _VtxWritePtr[0].uv = uv; _VtxWritePtr[0].col = col;        // Inner
+            _VtxWritePtr[1].pos.x = (points[i1].x + dm_x); _VtxWritePtr[1].pos.y = (points[i1].y + dm_y); _VtxWritePtr[1].uv = uv; _VtxWritePtr[1].col = col_trans;  // Outer
+            _VtxWritePtr += 2;
+
+            // Add indexes for fringes
+            _IdxWritePtr[0] = (ImDrawIdx)(vtx_inner_idx + (i1 << 1)); _IdxWritePtr[1] = (ImDrawIdx)(vtx_inner_idx + (i0 << 1)); _IdxWritePtr[2] = (ImDrawIdx)(vtx_outer_idx + (i0 << 1));
+            _IdxWritePtr[3] = (ImDrawIdx)(vtx_outer_idx + (i0 << 1)); _IdxWritePtr[4] = (ImDrawIdx)(vtx_outer_idx + (i1 << 1)); _IdxWritePtr[5] = (ImDrawIdx)(vtx_inner_idx + (i1 << 1));
+            _IdxWritePtr += 6;
+        }
+        _VtxCurrentIdx += (ImDrawIdx)vtx_count;
+    }
+    else
+    {
+        // Non Anti-aliased Fill
+        const int idx_count = (points_count - 2)*3;
+        const int vtx_count = points_count;
+        PrimReserve(idx_count, vtx_count);
+        for (int i = 0; i < vtx_count; i++)
+        {
+            _VtxWritePtr[0].pos = points[i]; _VtxWritePtr[0].uv = uv; _VtxWritePtr[0].col = col;
+            _VtxWritePtr++;
+        }
+        for (int i = 2; i < points_count; i++)
+        {
+            _IdxWritePtr[0] = (ImDrawIdx)(_VtxCurrentIdx); _IdxWritePtr[1] = (ImDrawIdx)(_VtxCurrentIdx + i - 1); _IdxWritePtr[2] = (ImDrawIdx)(_VtxCurrentIdx + i);
+            _IdxWritePtr += 3;
+        }
+        _VtxCurrentIdx += (ImDrawIdx)vtx_count;
+    }
+}
+
+void ImDrawList::_PathArcToFastEx(const ImVec2& center, float radius, int a_min_sample, int a_max_sample, int a_step)
+{
+    if (radius < 0.5f)
+    {
+        _Path.push_back(center);
+        return;
+    }
+
+    // Calculate arc auto segment step size
+    if (a_step <= 0)
+        a_step = IM_DRAWLIST_ARCFAST_SAMPLE_MAX / _CalcCircleAutoSegmentCount(radius);
+
+    // Make sure we never do steps larger than one quarter of the circle
+    a_step = ImClamp(a_step, 1, IM_DRAWLIST_ARCFAST_TABLE_SIZE / 4);
+
+    const int sample_range = ImAbs(a_max_sample - a_min_sample);
+    const int a_next_step = a_step;
+
+    int samples = sample_range + 1;
+    bool extra_max_sample = false;
+    if (a_step > 1)
+    {
+        samples            = sample_range / a_step + 1;
+        const int overstep = sample_range % a_step;
+
+        if (overstep > 0)
+        {
+            extra_max_sample = true;
+            samples++;
+
+            // When we have overstep to avoid awkwardly looking one long line and one tiny one at the end,
+            // distribute first step range evenly between them by reducing first step size.
+            if (sample_range > 0)
+                a_step -= (a_step - overstep) / 2;
+        }
+    }
+
+    _Path.resize(_Path.Size + samples);
+    ImVec2* out_ptr = _Path.Data + (_Path.Size - samples);
+
+    int sample_index = a_min_sample;
+    if (sample_index < 0 || sample_index >= IM_DRAWLIST_ARCFAST_SAMPLE_MAX)
+    {
+        sample_index = sample_index % IM_DRAWLIST_ARCFAST_SAMPLE_MAX;
+        if (sample_index < 0)
+            sample_index += IM_DRAWLIST_ARCFAST_SAMPLE_MAX;
+    }
+
+    if (a_max_sample >= a_min_sample)
+    {
+        for (int a = a_min_sample; a <= a_max_sample; a += a_step, sample_index += a_step, a_step = a_next_step)
+        {
+            // a_step is clamped to IM_DRAWLIST_ARCFAST_SAMPLE_MAX, so we have guaranteed that it will not wrap over range twice or more
+            if (sample_index >= IM_DRAWLIST_ARCFAST_SAMPLE_MAX)
+                sample_index -= IM_DRAWLIST_ARCFAST_SAMPLE_MAX;
+
+            const ImVec2 s = _Data->ArcFastVtx[sample_index];
+            out_ptr->x = center.x + s.x * radius;
+            out_ptr->y = center.y + s.y * radius;
+            out_ptr++;
+        }
+    }
+    else
+    {
+        for (int a = a_min_sample; a >= a_max_sample; a -= a_step, sample_index -= a_step, a_step = a_next_step)
+        {
+            // a_step is clamped to IM_DRAWLIST_ARCFAST_SAMPLE_MAX, so we have guaranteed that it will not wrap over range twice or more
+            if (sample_index < 0)
+                sample_index += IM_DRAWLIST_ARCFAST_SAMPLE_MAX;
+
+            const ImVec2 s = _Data->ArcFastVtx[sample_index];
+            out_ptr->x = center.x + s.x * radius;
+            out_ptr->y = center.y + s.y * radius;
+            out_ptr++;
+        }
+    }
+
+    if (extra_max_sample)
+    {
+        int normalized_max_sample = a_max_sample % IM_DRAWLIST_ARCFAST_SAMPLE_MAX;
+        if (normalized_max_sample < 0)
+            normalized_max_sample += IM_DRAWLIST_ARCFAST_SAMPLE_MAX;
+
+        const ImVec2 s = _Data->ArcFastVtx[normalized_max_sample];
+        out_ptr->x = center.x + s.x * radius;
+        out_ptr->y = center.y + s.y * radius;
+        out_ptr++;
+    }
+
+    IM_ASSERT_PARANOID(_Path.Data + _Path.Size == out_ptr);
+}
+
+void ImDrawList::_PathArcToN(const ImVec2& center, float radius, float a_min, float a_max, int num_segments)
+{
+    if (radius < 0.5f)
+    {
+        _Path.push_back(center);
+        return;
+    }
+
+    // Note that we are adding a point at both a_min and a_max.
+    // If you are trying to draw a full closed circle you don't want the overlapping points!
+    _Path.reserve(_Path.Size + (num_segments + 1));
+    for (int i = 0; i <= num_segments; i++)
+    {
+        const float a = a_min + ((float)i / (float)num_segments) * (a_max - a_min);
+        _Path.push_back(ImVec2(center.x + ImCos(a) * radius, center.y + ImSin(a) * radius));
+    }
+}
+
+// 0: East, 3: South, 6: West, 9: North, 12: East
+void ImDrawList::PathArcToFast(const ImVec2& center, float radius, int a_min_of_12, int a_max_of_12)
+{
+    if (radius < 0.5f)
+    {
+        _Path.push_back(center);
+        return;
+    }
+    _PathArcToFastEx(center, radius, a_min_of_12 * IM_DRAWLIST_ARCFAST_SAMPLE_MAX / 12, a_max_of_12 * IM_DRAWLIST_ARCFAST_SAMPLE_MAX / 12, 0);
+}
+
+void ImDrawList::PathArcTo(const ImVec2& center, float radius, float a_min, float a_max, int num_segments)
+{
+    if (radius < 0.5f)
+    {
+        _Path.push_back(center);
+        return;
+    }
+
+    if (num_segments > 0)
+    {
+        _PathArcToN(center, radius, a_min, a_max, num_segments);
+        return;
+    }
+
+    // Automatic segment count
+    if (radius <= _Data->ArcFastRadiusCutoff)
+    {
+        const bool a_is_reverse = a_max < a_min;
+
+        // We are going to use precomputed values for mid samples.
+        // Determine first and last sample in lookup table that belong to the arc.
+        const float a_min_sample_f = IM_DRAWLIST_ARCFAST_SAMPLE_MAX * a_min / (IM_PI * 2.0f);
+        const float a_max_sample_f = IM_DRAWLIST_ARCFAST_SAMPLE_MAX * a_max / (IM_PI * 2.0f);
+
+        const int a_min_sample = a_is_reverse ? (int)ImFloorSigned(a_min_sample_f) : (int)ImCeil(a_min_sample_f);
+        const int a_max_sample = a_is_reverse ? (int)ImCeil(a_max_sample_f) : (int)ImFloorSigned(a_max_sample_f);
+        const int a_mid_samples = a_is_reverse ? ImMax(a_min_sample - a_max_sample, 0) : ImMax(a_max_sample - a_min_sample, 0);
+
+        const float a_min_segment_angle = a_min_sample * IM_PI * 2.0f / IM_DRAWLIST_ARCFAST_SAMPLE_MAX;
+        const float a_max_segment_angle = a_max_sample * IM_PI * 2.0f / IM_DRAWLIST_ARCFAST_SAMPLE_MAX;
+        const bool a_emit_start = ImAbs(a_min_segment_angle - a_min) >= 1e-5f;
+        const bool a_emit_end = ImAbs(a_max - a_max_segment_angle) >= 1e-5f;
+
+        _Path.reserve(_Path.Size + (a_mid_samples + 1 + (a_emit_start ? 1 : 0) + (a_emit_end ? 1 : 0)));
+        if (a_emit_start)
+            _Path.push_back(ImVec2(center.x + ImCos(a_min) * radius, center.y + ImSin(a_min) * radius));
+        if (a_mid_samples > 0)
+            _PathArcToFastEx(center, radius, a_min_sample, a_max_sample, 0);
+        if (a_emit_end)
+            _Path.push_back(ImVec2(center.x + ImCos(a_max) * radius, center.y + ImSin(a_max) * radius));
+    }
+    else
+    {
+        const float arc_length = ImAbs(a_max - a_min);
+        const int circle_segment_count = _CalcCircleAutoSegmentCount(radius);
+        const int arc_segment_count = ImMax((int)ImCeil(circle_segment_count * arc_length / (IM_PI * 2.0f)), (int)(2.0f * IM_PI / arc_length));
+        _PathArcToN(center, radius, a_min, a_max, arc_segment_count);
+    }
+}
+
+ImVec2 ImBezierCubicCalc(const ImVec2& p1, const ImVec2& p2, const ImVec2& p3, const ImVec2& p4, float t)
+{
+    float u = 1.0f - t;
+    float w1 = u * u * u;
+    float w2 = 3 * u * u * t;
+    float w3 = 3 * u * t * t;
+    float w4 = t * t * t;
+    return ImVec2(w1 * p1.x + w2 * p2.x + w3 * p3.x + w4 * p4.x, w1 * p1.y + w2 * p2.y + w3 * p3.y + w4 * p4.y);
+}
+
+ImVec2 ImBezierQuadraticCalc(const ImVec2& p1, const ImVec2& p2, const ImVec2& p3, float t)
+{
+    float u = 1.0f - t;
+    float w1 = u * u;
+    float w2 = 2 * u * t;
+    float w3 = t * t;
+    return ImVec2(w1 * p1.x + w2 * p2.x + w3 * p3.x, w1 * p1.y + w2 * p2.y + w3 * p3.y);
+}
+
+// Closely mimics ImBezierCubicClosestPointCasteljau() in imgui.cpp
+static void PathBezierCubicCurveToCasteljau(ImVector<ImVec2>* path, float x1, float y1, float x2, float y2, float x3, float y3, float x4, float y4, float tess_tol, int level)
+{
+    float dx = x4 - x1;
+    float dy = y4 - y1;
+    float d2 = (x2 - x4) * dy - (y2 - y4) * dx;
+    float d3 = (x3 - x4) * dy - (y3 - y4) * dx;
+    d2 = (d2 >= 0) ? d2 : -d2;
+    d3 = (d3 >= 0) ? d3 : -d3;
+    if ((d2 + d3) * (d2 + d3) < tess_tol * (dx * dx + dy * dy))
+    {
+        path->push_back(ImVec2(x4, y4));
+    }
+    else if (level < 10)
+    {
+        float x12 = (x1 + x2) * 0.5f, y12 = (y1 + y2) * 0.5f;
+        float x23 = (x2 + x3) * 0.5f, y23 = (y2 + y3) * 0.5f;
+        float x34 = (x3 + x4) * 0.5f, y34 = (y3 + y4) * 0.5f;
+        float x123 = (x12 + x23) * 0.5f, y123 = (y12 + y23) * 0.5f;
+        float x234 = (x23 + x34) * 0.5f, y234 = (y23 + y34) * 0.5f;
+        float x1234 = (x123 + x234) * 0.5f, y1234 = (y123 + y234) * 0.5f;
+        PathBezierCubicCurveToCasteljau(path, x1, y1, x12, y12, x123, y123, x1234, y1234, tess_tol, level + 1);
+        PathBezierCubicCurveToCasteljau(path, x1234, y1234, x234, y234, x34, y34, x4, y4, tess_tol, level + 1);
+    }
+}
+
+static void PathBezierQuadraticCurveToCasteljau(ImVector<ImVec2>* path, float x1, float y1, float x2, float y2, float x3, float y3, float tess_tol, int level)
+{
+    float dx = x3 - x1, dy = y3 - y1;
+    float det = (x2 - x3) * dy - (y2 - y3) * dx;
+    if (det * det * 4.0f < tess_tol * (dx * dx + dy * dy))
+    {
+        path->push_back(ImVec2(x3, y3));
+    }
+    else if (level < 10)
+    {
+        float x12 = (x1 + x2) * 0.5f, y12 = (y1 + y2) * 0.5f;
+        float x23 = (x2 + x3) * 0.5f, y23 = (y2 + y3) * 0.5f;
+        float x123 = (x12 + x23) * 0.5f, y123 = (y12 + y23) * 0.5f;
+        PathBezierQuadraticCurveToCasteljau(path, x1, y1, x12, y12, x123, y123, tess_tol, level + 1);
+        PathBezierQuadraticCurveToCasteljau(path, x123, y123, x23, y23, x3, y3, tess_tol, level + 1);
+    }
+}
+
+void ImDrawList::PathBezierCubicCurveTo(const ImVec2& p2, const ImVec2& p3, const ImVec2& p4, int num_segments)
+{
+    ImVec2 p1 = _Path.back();
+    if (num_segments == 0)
+    {
+        PathBezierCubicCurveToCasteljau(&_Path, p1.x, p1.y, p2.x, p2.y, p3.x, p3.y, p4.x, p4.y, _Data->CurveTessellationTol, 0); // Auto-tessellated
+    }
+    else
+    {
+        float t_step = 1.0f / (float)num_segments;
+        for (int i_step = 1; i_step <= num_segments; i_step++)
+            _Path.push_back(ImBezierCubicCalc(p1, p2, p3, p4, t_step * i_step));
+    }
+}
+
+void ImDrawList::PathBezierQuadraticCurveTo(const ImVec2& p2, const ImVec2& p3, int num_segments)
+{
+    ImVec2 p1 = _Path.back();
+    if (num_segments == 0)
+    {
+        PathBezierQuadraticCurveToCasteljau(&_Path, p1.x, p1.y, p2.x, p2.y, p3.x, p3.y, _Data->CurveTessellationTol, 0);// Auto-tessellated
+    }
+    else
+    {
+        float t_step = 1.0f / (float)num_segments;
+        for (int i_step = 1; i_step <= num_segments; i_step++)
+            _Path.push_back(ImBezierQuadraticCalc(p1, p2, p3, t_step * i_step));
+    }
+}
+
+IM_STATIC_ASSERT(ImDrawFlags_RoundCornersTopLeft == (1 << 4));
+static inline ImDrawFlags FixRectCornerFlags(ImDrawFlags flags)
+{
+#ifndef IMGUI_DISABLE_OBSOLETE_FUNCTIONS
+    // Legacy Support for hard coded ~0 (used to be a suggested equivalent to ImDrawCornerFlags_All)
+    //   ~0   --> ImDrawFlags_RoundCornersAll or 0
+    if (flags == ~0)
+        return ImDrawFlags_RoundCornersAll;
+
+    // Legacy Support for hard coded 0x01 to 0x0F (matching 15 out of 16 old flags combinations)
+    //   0x01 --> ImDrawFlags_RoundCornersTopLeft (VALUE 0x01 OVERLAPS ImDrawFlags_Closed but ImDrawFlags_Closed is never valid in this path!)
+    //   0x02 --> ImDrawFlags_RoundCornersTopRight
+    //   0x03 --> ImDrawFlags_RoundCornersTopLeft | ImDrawFlags_RoundCornersTopRight
+    //   0x04 --> ImDrawFlags_RoundCornersBotLeft
+    //   0x05 --> ImDrawFlags_RoundCornersTopLeft | ImDrawFlags_RoundCornersBotLeft
+    //   ...
+    //   0x0F --> ImDrawFlags_RoundCornersAll or 0
+    // (See all values in ImDrawCornerFlags_)
+    if (flags >= 0x01 && flags <= 0x0F)
+        return (flags << 4);
+
+    // We cannot support hard coded 0x00 with 'float rounding > 0.0f' --> replace with ImDrawFlags_RoundCornersNone or use 'float rounding = 0.0f'
+#endif
+
+    // If this triggers, please update your code replacing hardcoded values with new ImDrawFlags_RoundCorners* values.
+    // Note that ImDrawFlags_Closed (== 0x01) is an invalid flag for AddRect(), AddRectFilled(), PathRect() etc...
+    IM_ASSERT((flags & 0x0F) == 0 && "Misuse of legacy hardcoded ImDrawCornerFlags values!");
+
+    if ((flags & ImDrawFlags_RoundCornersMask_) == 0)
+        flags |= ImDrawFlags_RoundCornersAll;
+
+    return flags;
+}
+
+void ImDrawList::PathRect(const ImVec2& a, const ImVec2& b, float rounding, ImDrawFlags flags)
+{
+    flags = FixRectCornerFlags(flags);
+    rounding = ImMin(rounding, ImFabs(b.x - a.x) * ( ((flags & ImDrawFlags_RoundCornersTop)  == ImDrawFlags_RoundCornersTop)  || ((flags & ImDrawFlags_RoundCornersBottom) == ImDrawFlags_RoundCornersBottom) ? 0.5f : 1.0f ) - 1.0f);
+    rounding = ImMin(rounding, ImFabs(b.y - a.y) * ( ((flags & ImDrawFlags_RoundCornersLeft) == ImDrawFlags_RoundCornersLeft) || ((flags & ImDrawFlags_RoundCornersRight)  == ImDrawFlags_RoundCornersRight)  ? 0.5f : 1.0f ) - 1.0f);
+
+    if (rounding < 0.5f || (flags & ImDrawFlags_RoundCornersMask_) == ImDrawFlags_RoundCornersNone)
+    {
+        PathLineTo(a);
+        PathLineTo(ImVec2(b.x, a.y));
+        PathLineTo(b);
+        PathLineTo(ImVec2(a.x, b.y));
+    }
+    else
+    {
+        const float rounding_tl = (flags & ImDrawFlags_RoundCornersTopLeft)     ? rounding : 0.0f;
+        const float rounding_tr = (flags & ImDrawFlags_RoundCornersTopRight)    ? rounding : 0.0f;
+        const float rounding_br = (flags & ImDrawFlags_RoundCornersBottomRight) ? rounding : 0.0f;
+        const float rounding_bl = (flags & ImDrawFlags_RoundCornersBottomLeft)  ? rounding : 0.0f;
+        PathArcToFast(ImVec2(a.x + rounding_tl, a.y + rounding_tl), rounding_tl, 6, 9);
+        PathArcToFast(ImVec2(b.x - rounding_tr, a.y + rounding_tr), rounding_tr, 9, 12);
+        PathArcToFast(ImVec2(b.x - rounding_br, b.y - rounding_br), rounding_br, 0, 3);
+        PathArcToFast(ImVec2(a.x + rounding_bl, b.y - rounding_bl), rounding_bl, 3, 6);
+    }
+}
+
+void ImDrawList::AddLine(const ImVec2& p1, const ImVec2& p2, ImU32 col, float thickness)
+{
+    if ((col & IM_COL32_A_MASK) == 0)
+        return;
+    PathLineTo(p1 + ImVec2(0.5f, 0.5f));
+    PathLineTo(p2 + ImVec2(0.5f, 0.5f));
+    PathStroke(col, 0, thickness);
+}
+
+// p_min = upper-left, p_max = lower-right
+// Note we don't render 1 pixels sized rectangles properly.
+void ImDrawList::AddRect(const ImVec2& p_min, const ImVec2& p_max, ImU32 col, float rounding, ImDrawFlags flags, float thickness)
+{
+    if ((col & IM_COL32_A_MASK) == 0)
+        return;
+    if (Flags & ImDrawListFlags_AntiAliasedLines)
+        PathRect(p_min + ImVec2(0.50f, 0.50f), p_max - ImVec2(0.50f, 0.50f), rounding, flags);
+    else
+        PathRect(p_min + ImVec2(0.50f, 0.50f), p_max - ImVec2(0.49f, 0.49f), rounding, flags); // Better looking lower-right corner and rounded non-AA shapes.
+    PathStroke(col, ImDrawFlags_Closed, thickness);
+}
+
+void ImDrawList::AddRectFilled(const ImVec2& p_min, const ImVec2& p_max, ImU32 col, float rounding, ImDrawFlags flags)
+{
+    if ((col & IM_COL32_A_MASK) == 0)
+        return;
+    if (rounding < 0.5f || (flags & ImDrawFlags_RoundCornersMask_) == ImDrawFlags_RoundCornersNone)
+    {
+        PrimReserve(6, 4);
+        PrimRect(p_min, p_max, col);
+    }
+    else
+    {
+        PathRect(p_min, p_max, rounding, flags);
+        PathFillConvex(col);
+    }
+}
+
+// p_min = upper-left, p_max = lower-right
+void ImDrawList::AddRectFilledMultiColor(const ImVec2& p_min, const ImVec2& p_max, ImU32 col_upr_left, ImU32 col_upr_right, ImU32 col_bot_right, ImU32 col_bot_left)
+{
+    if (((col_upr_left | col_upr_right | col_bot_right | col_bot_left) & IM_COL32_A_MASK) == 0)
+        return;
+
+    const ImVec2 uv = _Data->TexUvWhitePixel;
+    PrimReserve(6, 4);
+    PrimWriteIdx((ImDrawIdx)(_VtxCurrentIdx)); PrimWriteIdx((ImDrawIdx)(_VtxCurrentIdx + 1)); PrimWriteIdx((ImDrawIdx)(_VtxCurrentIdx + 2));
+    PrimWriteIdx((ImDrawIdx)(_VtxCurrentIdx)); PrimWriteIdx((ImDrawIdx)(_VtxCurrentIdx + 2)); PrimWriteIdx((ImDrawIdx)(_VtxCurrentIdx + 3));
+    PrimWriteVtx(p_min, uv, col_upr_left);
+    PrimWriteVtx(ImVec2(p_max.x, p_min.y), uv, col_upr_right);
+    PrimWriteVtx(p_max, uv, col_bot_right);
+    PrimWriteVtx(ImVec2(p_min.x, p_max.y), uv, col_bot_left);
+}
+
+void ImDrawList::AddQuad(const ImVec2& p1, const ImVec2& p2, const ImVec2& p3, const ImVec2& p4, ImU32 col, float thickness)
+{
+    if ((col & IM_COL32_A_MASK) == 0)
+        return;
+
+    PathLineTo(p1);
+    PathLineTo(p2);
+    PathLineTo(p3);
+    PathLineTo(p4);
+    PathStroke(col, ImDrawFlags_Closed, thickness);
+}
+
+void ImDrawList::AddQuadFilled(const ImVec2& p1, const ImVec2& p2, const ImVec2& p3, const ImVec2& p4, ImU32 col)
+{
+    if ((col & IM_COL32_A_MASK) == 0)
+        return;
+
+    PathLineTo(p1);
+    PathLineTo(p2);
+    PathLineTo(p3);
+    PathLineTo(p4);
+    PathFillConvex(col);
+}
+
+void ImDrawList::AddTriangle(const ImVec2& p1, const ImVec2& p2, const ImVec2& p3, ImU32 col, float thickness)
+{
+    if ((col & IM_COL32_A_MASK) == 0)
+        return;
+
+    PathLineTo(p1);
+    PathLineTo(p2);
+    PathLineTo(p3);
+    PathStroke(col, ImDrawFlags_Closed, thickness);
+}
+
+void ImDrawList::AddTriangleFilled(const ImVec2& p1, const ImVec2& p2, const ImVec2& p3, ImU32 col)
+{
+    if ((col & IM_COL32_A_MASK) == 0)
+        return;
+
+    PathLineTo(p1);
+    PathLineTo(p2);
+    PathLineTo(p3);
+    PathFillConvex(col);
+}
+
+void ImDrawList::AddCircle(const ImVec2& center, float radius, ImU32 col, int num_segments, float thickness)
+{
+    if ((col & IM_COL32_A_MASK) == 0 || radius < 0.5f)
+        return;
+
+    if (num_segments <= 0)
+    {
+        // Use arc with automatic segment count
+        _PathArcToFastEx(center, radius - 0.5f, 0, IM_DRAWLIST_ARCFAST_SAMPLE_MAX, 0);
+        _Path.Size--;
+    }
+    else
+    {
+        // Explicit segment count (still clamp to avoid drawing insanely tessellated shapes)
+        num_segments = ImClamp(num_segments, 3, IM_DRAWLIST_CIRCLE_AUTO_SEGMENT_MAX);
+
+        // Because we are filling a closed shape we remove 1 from the count of segments/points
+        const float a_max = (IM_PI * 2.0f) * ((float)num_segments - 1.0f) / (float)num_segments;
+        PathArcTo(center, radius - 0.5f, 0.0f, a_max, num_segments - 1);
+    }
+
+    PathStroke(col, ImDrawFlags_Closed, thickness);
+}
+
+void ImDrawList::AddCircleFilled(const ImVec2& center, float radius, ImU32 col, int num_segments)
+{
+    if ((col & IM_COL32_A_MASK) == 0 || radius < 0.5f)
+        return;
+
+    if (num_segments <= 0)
+    {
+        // Use arc with automatic segment count
+        _PathArcToFastEx(center, radius, 0, IM_DRAWLIST_ARCFAST_SAMPLE_MAX, 0);
+        _Path.Size--;
+    }
+    else
+    {
+        // Explicit segment count (still clamp to avoid drawing insanely tessellated shapes)
+        num_segments = ImClamp(num_segments, 3, IM_DRAWLIST_CIRCLE_AUTO_SEGMENT_MAX);
+
+        // Because we are filling a closed shape we remove 1 from the count of segments/points
+        const float a_max = (IM_PI * 2.0f) * ((float)num_segments - 1.0f) / (float)num_segments;
+        PathArcTo(center, radius, 0.0f, a_max, num_segments - 1);
+    }
+
+    PathFillConvex(col);
+}
+
+// Guaranteed to honor 'num_segments'
+void ImDrawList::AddNgon(const ImVec2& center, float radius, ImU32 col, int num_segments, float thickness)
+{
+    if ((col & IM_COL32_A_MASK) == 0 || num_segments <= 2)
+        return;
+
+    // Because we are filling a closed shape we remove 1 from the count of segments/points
+    const float a_max = (IM_PI * 2.0f) * ((float)num_segments - 1.0f) / (float)num_segments;
+    PathArcTo(center, radius - 0.5f, 0.0f, a_max, num_segments - 1);
+    PathStroke(col, ImDrawFlags_Closed, thickness);
+}
+
+// Guaranteed to honor 'num_segments'
+void ImDrawList::AddNgonFilled(const ImVec2& center, float radius, ImU32 col, int num_segments)
+{
+    if ((col & IM_COL32_A_MASK) == 0 || num_segments <= 2)
+        return;
+
+    // Because we are filling a closed shape we remove 1 from the count of segments/points
+    const float a_max = (IM_PI * 2.0f) * ((float)num_segments - 1.0f) / (float)num_segments;
+    PathArcTo(center, radius, 0.0f, a_max, num_segments - 1);
+    PathFillConvex(col);
+}
+
+// Cubic Bezier takes 4 controls points
+void ImDrawList::AddBezierCubic(const ImVec2& p1, const ImVec2& p2, const ImVec2& p3, const ImVec2& p4, ImU32 col, float thickness, int num_segments)
+{
+    if ((col & IM_COL32_A_MASK) == 0)
+        return;
+
+    PathLineTo(p1);
+    PathBezierCubicCurveTo(p2, p3, p4, num_segments);
+    PathStroke(col, 0, thickness);
+}
+
+// Quadratic Bezier takes 3 controls points
+void ImDrawList::AddBezierQuadratic(const ImVec2& p1, const ImVec2& p2, const ImVec2& p3, ImU32 col, float thickness, int num_segments)
+{
+    if ((col & IM_COL32_A_MASK) == 0)
+        return;
+
+    PathLineTo(p1);
+    PathBezierQuadraticCurveTo(p2, p3, num_segments);
+    PathStroke(col, 0, thickness);
+}
+
+void ImDrawList::AddText(const ImFont* font, float font_size, const ImVec2& pos, ImU32 col, const char* text_begin, const char* text_end, float wrap_width, const ImVec4* cpu_fine_clip_rect)
+{
+    if ((col & IM_COL32_A_MASK) == 0)
+        return;
+
+    if (text_end == NULL)
+        text_end = text_begin + strlen(text_begin);
+    if (text_begin == text_end)
+        return;
+
+    // Pull default font/size from the shared ImDrawListSharedData instance
+    if (font == NULL)
+        font = _Data->Font;
+    if (font_size == 0.0f)
+        font_size = _Data->FontSize;
+
+    IM_ASSERT(font->ContainerAtlas->TexID == _CmdHeader.TextureId);  // Use high-level ImGui::PushFont() or low-level ImDrawList::PushTextureId() to change font.
+
+    ImVec4 clip_rect = _CmdHeader.ClipRect;
+    if (cpu_fine_clip_rect)
+    {
+        clip_rect.x = ImMax(clip_rect.x, cpu_fine_clip_rect->x);
+        clip_rect.y = ImMax(clip_rect.y, cpu_fine_clip_rect->y);
+        clip_rect.z = ImMin(clip_rect.z, cpu_fine_clip_rect->z);
+        clip_rect.w = ImMin(clip_rect.w, cpu_fine_clip_rect->w);
+    }
+    font->RenderText(this, font_size, pos, col, clip_rect, text_begin, text_end, wrap_width, cpu_fine_clip_rect != NULL);
+}
+
+void ImDrawList::AddText(const ImVec2& pos, ImU32 col, const char* text_begin, const char* text_end)
+{
+    AddText(NULL, 0.0f, pos, col, text_begin, text_end);
+}
+
+void ImDrawList::AddImage(ImTextureID user_texture_id, const ImVec2& p_min, const ImVec2& p_max, const ImVec2& uv_min, const ImVec2& uv_max, ImU32 col)
+{
+    if ((col & IM_COL32_A_MASK) == 0)
+        return;
+
+    const bool push_texture_id = user_texture_id != _CmdHeader.TextureId;
+    if (push_texture_id)
+        PushTextureID(user_texture_id);
+
+    PrimReserve(6, 4);
+    PrimRectUV(p_min, p_max, uv_min, uv_max, col);
+
+    if (push_texture_id)
+        PopTextureID();
+}
+
+void ImDrawList::AddImageQuad(ImTextureID user_texture_id, const ImVec2& p1, const ImVec2& p2, const ImVec2& p3, const ImVec2& p4, const ImVec2& uv1, const ImVec2& uv2, const ImVec2& uv3, const ImVec2& uv4, ImU32 col)
+{
+    if ((col & IM_COL32_A_MASK) == 0)
+        return;
+
+    const bool push_texture_id = user_texture_id != _CmdHeader.TextureId;
+    if (push_texture_id)
+        PushTextureID(user_texture_id);
+
+    PrimReserve(6, 4);
+    PrimQuadUV(p1, p2, p3, p4, uv1, uv2, uv3, uv4, col);
+
+    if (push_texture_id)
+        PopTextureID();
+}
+
+void ImDrawList::AddImageRounded(ImTextureID user_texture_id, const ImVec2& p_min, const ImVec2& p_max, const ImVec2& uv_min, const ImVec2& uv_max, ImU32 col, float rounding, ImDrawFlags flags)
+{
+    if ((col & IM_COL32_A_MASK) == 0)
+        return;
+
+    flags = FixRectCornerFlags(flags);
+    if (rounding < 0.5f || (flags & ImDrawFlags_RoundCornersMask_) == ImDrawFlags_RoundCornersNone)
+    {
+        AddImage(user_texture_id, p_min, p_max, uv_min, uv_max, col);
+        return;
+    }
+
+    const bool push_texture_id = user_texture_id != _CmdHeader.TextureId;
+    if (push_texture_id)
+        PushTextureID(user_texture_id);
+
+    int vert_start_idx = VtxBuffer.Size;
+    PathRect(p_min, p_max, rounding, flags);
+    PathFillConvex(col);
+    int vert_end_idx = VtxBuffer.Size;
+    ImGui::ShadeVertsLinearUV(this, vert_start_idx, vert_end_idx, p_min, p_max, uv_min, uv_max, true);
+
+    if (push_texture_id)
+        PopTextureID();
+}
+
+
+//-----------------------------------------------------------------------------
+// [SECTION] ImDrawListSplitter
+//-----------------------------------------------------------------------------
+// FIXME: This may be a little confusing, trying to be a little too low-level/optimal instead of just doing vector swap..
+//-----------------------------------------------------------------------------
+
+void ImDrawListSplitter::ClearFreeMemory()
+{
+    for (int i = 0; i < _Channels.Size; i++)
+    {
+        if (i == _Current)
+            memset(&_Channels[i], 0, sizeof(_Channels[i]));  // Current channel is a copy of CmdBuffer/IdxBuffer, don't destruct again
+        _Channels[i]._CmdBuffer.clear();
+        _Channels[i]._IdxBuffer.clear();
+    }
+    _Current = 0;
+    _Count = 1;
+    _Channels.clear();
+}
+
+void ImDrawListSplitter::Split(ImDrawList* draw_list, int channels_count)
+{
+    IM_UNUSED(draw_list);
+    IM_ASSERT(_Current == 0 && _Count <= 1 && "Nested channel splitting is not supported. Please use separate instances of ImDrawListSplitter.");
+    int old_channels_count = _Channels.Size;
+    if (old_channels_count < channels_count)
+    {
+        _Channels.reserve(channels_count); // Avoid over reserving since this is likely to stay stable
+        _Channels.resize(channels_count);
+    }
+    _Count = channels_count;
+
+    // Channels[] (24/32 bytes each) hold storage that we'll swap with draw_list->_CmdBuffer/_IdxBuffer
+    // The content of Channels[0] at this point doesn't matter. We clear it to make state tidy in a debugger but we don't strictly need to.
+    // When we switch to the next channel, we'll copy draw_list->_CmdBuffer/_IdxBuffer into Channels[0] and then Channels[1] into draw_list->CmdBuffer/_IdxBuffer
+    memset(&_Channels[0], 0, sizeof(ImDrawChannel));
+    for (int i = 1; i < channels_count; i++)
+    {
+        if (i >= old_channels_count)
+        {
+            IM_PLACEMENT_NEW(&_Channels[i]) ImDrawChannel();
+        }
+        else
+        {
+            _Channels[i]._CmdBuffer.resize(0);
+            _Channels[i]._IdxBuffer.resize(0);
+        }
+    }
+}
+
+void ImDrawListSplitter::Merge(ImDrawList* draw_list)
+{
+    // Note that we never use or rely on _Channels.Size because it is merely a buffer that we never shrink back to 0 to keep all sub-buffers ready for use.
+    if (_Count <= 1)
+        return;
+
+    SetCurrentChannel(draw_list, 0);
+    draw_list->_PopUnusedDrawCmd();
+
+    // Calculate our final buffer sizes. Also fix the incorrect IdxOffset values in each command.
+    int new_cmd_buffer_count = 0;
+    int new_idx_buffer_count = 0;
+    ImDrawCmd* last_cmd = (_Count > 0 && draw_list->CmdBuffer.Size > 0) ? &draw_list->CmdBuffer.back() : NULL;
+    int idx_offset = last_cmd ? last_cmd->IdxOffset + last_cmd->ElemCount : 0;
+    for (int i = 1; i < _Count; i++)
+    {
+        ImDrawChannel& ch = _Channels[i];
+        if (ch._CmdBuffer.Size > 0 && ch._CmdBuffer.back().ElemCount == 0 && ch._CmdBuffer.back().UserCallback == NULL) // Equivalent of PopUnusedDrawCmd()
+            ch._CmdBuffer.pop_back();
+
+        if (ch._CmdBuffer.Size > 0 && last_cmd != NULL)
+        {
+            // Do not include ImDrawCmd_AreSequentialIdxOffset() in the compare as we rebuild IdxOffset values ourselves.
+            // Manipulating IdxOffset (e.g. by reordering draw commands like done by RenderDimmedBackgroundBehindWindow()) is not supported within a splitter.
+            ImDrawCmd* next_cmd = &ch._CmdBuffer[0];
+            if (ImDrawCmd_HeaderCompare(last_cmd, next_cmd) == 0 && last_cmd->UserCallback == NULL && next_cmd->UserCallback == NULL)
+            {
+                // Merge previous channel last draw command with current channel first draw command if matching.
+                last_cmd->ElemCount += next_cmd->ElemCount;
+                idx_offset += next_cmd->ElemCount;
+                ch._CmdBuffer.erase(ch._CmdBuffer.Data); // FIXME-OPT: Improve for multiple merges.
+            }
+        }
+        if (ch._CmdBuffer.Size > 0)
+            last_cmd = &ch._CmdBuffer.back();
+        new_cmd_buffer_count += ch._CmdBuffer.Size;
+        new_idx_buffer_count += ch._IdxBuffer.Size;
+        for (int cmd_n = 0; cmd_n < ch._CmdBuffer.Size; cmd_n++)
+        {
+            ch._CmdBuffer.Data[cmd_n].IdxOffset = idx_offset;
+            idx_offset += ch._CmdBuffer.Data[cmd_n].ElemCount;
+        }
+    }
+    draw_list->CmdBuffer.resize(draw_list->CmdBuffer.Size + new_cmd_buffer_count);
+    draw_list->IdxBuffer.resize(draw_list->IdxBuffer.Size + new_idx_buffer_count);
+
+    // Write commands and indices in order (they are fairly small structures, we don't copy vertices only indices)
+    ImDrawCmd* cmd_write = draw_list->CmdBuffer.Data + draw_list->CmdBuffer.Size - new_cmd_buffer_count;
+    ImDrawIdx* idx_write = draw_list->IdxBuffer.Data + draw_list->IdxBuffer.Size - new_idx_buffer_count;
+    for (int i = 1; i < _Count; i++)
+    {
+        ImDrawChannel& ch = _Channels[i];
+        if (int sz = ch._CmdBuffer.Size) { memcpy(cmd_write, ch._CmdBuffer.Data, sz * sizeof(ImDrawCmd)); cmd_write += sz; }
+        if (int sz = ch._IdxBuffer.Size) { memcpy(idx_write, ch._IdxBuffer.Data, sz * sizeof(ImDrawIdx)); idx_write += sz; }
+    }
+    draw_list->_IdxWritePtr = idx_write;
+
+    // Ensure there's always a non-callback draw command trailing the command-buffer
+    if (draw_list->CmdBuffer.Size == 0 || draw_list->CmdBuffer.back().UserCallback != NULL)
+        draw_list->AddDrawCmd();
+
+    // If current command is used with different settings we need to add a new command
+    ImDrawCmd* curr_cmd = &draw_list->CmdBuffer.Data[draw_list->CmdBuffer.Size - 1];
+    if (curr_cmd->ElemCount == 0)
+        ImDrawCmd_HeaderCopy(curr_cmd, &draw_list->_CmdHeader); // Copy ClipRect, TextureId, VtxOffset
+    else if (ImDrawCmd_HeaderCompare(curr_cmd, &draw_list->_CmdHeader) != 0)
+        draw_list->AddDrawCmd();
+
+    _Count = 1;
+}
+
+void ImDrawListSplitter::SetCurrentChannel(ImDrawList* draw_list, int idx)
+{
+    IM_ASSERT(idx >= 0 && idx < _Count);
+    if (_Current == idx)
+        return;
+
+    // Overwrite ImVector (12/16 bytes), four times. This is merely a silly optimization instead of doing .swap()
+    memcpy(&_Channels.Data[_Current]._CmdBuffer, &draw_list->CmdBuffer, sizeof(draw_list->CmdBuffer));
+    memcpy(&_Channels.Data[_Current]._IdxBuffer, &draw_list->IdxBuffer, sizeof(draw_list->IdxBuffer));
+    _Current = idx;
+    memcpy(&draw_list->CmdBuffer, &_Channels.Data[idx]._CmdBuffer, sizeof(draw_list->CmdBuffer));
+    memcpy(&draw_list->IdxBuffer, &_Channels.Data[idx]._IdxBuffer, sizeof(draw_list->IdxBuffer));
+    draw_list->_IdxWritePtr = draw_list->IdxBuffer.Data + draw_list->IdxBuffer.Size;
+
+    // If current command is used with different settings we need to add a new command
+    ImDrawCmd* curr_cmd = (draw_list->CmdBuffer.Size == 0) ? NULL : &draw_list->CmdBuffer.Data[draw_list->CmdBuffer.Size - 1];
+    if (curr_cmd == NULL)
+        draw_list->AddDrawCmd();
+    else if (curr_cmd->ElemCount == 0)
+        ImDrawCmd_HeaderCopy(curr_cmd, &draw_list->_CmdHeader); // Copy ClipRect, TextureId, VtxOffset
+    else if (ImDrawCmd_HeaderCompare(curr_cmd, &draw_list->_CmdHeader) != 0)
+        draw_list->AddDrawCmd();
+}
+
+//-----------------------------------------------------------------------------
+// [SECTION] ImDrawData
+//-----------------------------------------------------------------------------
+
+// For backward compatibility: convert all buffers from indexed to de-indexed, in case you cannot render indexed. Note: this is slow and most likely a waste of resources. Always prefer indexed rendering!
+void ImDrawData::DeIndexAllBuffers()
+{
+    ImVector<ImDrawVert> new_vtx_buffer;
+    TotalVtxCount = TotalIdxCount = 0;
+    for (int i = 0; i < CmdListsCount; i++)
+    {
+        ImDrawList* cmd_list = CmdLists[i];
+        if (cmd_list->IdxBuffer.empty())
+            continue;
+        new_vtx_buffer.resize(cmd_list->IdxBuffer.Size);
+        for (int j = 0; j < cmd_list->IdxBuffer.Size; j++)
+            new_vtx_buffer[j] = cmd_list->VtxBuffer[cmd_list->IdxBuffer[j]];
+        cmd_list->VtxBuffer.swap(new_vtx_buffer);
+        cmd_list->IdxBuffer.resize(0);
+        TotalVtxCount += cmd_list->VtxBuffer.Size;
+    }
+}
+
+// Helper to scale the ClipRect field of each ImDrawCmd.
+// Use if your final output buffer is at a different scale than draw_data->DisplaySize,
+// or if there is a difference between your window resolution and framebuffer resolution.
+void ImDrawData::ScaleClipRects(const ImVec2& fb_scale)
+{
+    for (int i = 0; i < CmdListsCount; i++)
+    {
+        ImDrawList* cmd_list = CmdLists[i];
+        for (int cmd_i = 0; cmd_i < cmd_list->CmdBuffer.Size; cmd_i++)
+        {
+            ImDrawCmd* cmd = &cmd_list->CmdBuffer[cmd_i];
+            cmd->ClipRect = ImVec4(cmd->ClipRect.x * fb_scale.x, cmd->ClipRect.y * fb_scale.y, cmd->ClipRect.z * fb_scale.x, cmd->ClipRect.w * fb_scale.y);
+        }
+    }
+}
+
+//-----------------------------------------------------------------------------
+// [SECTION] Helpers ShadeVertsXXX functions
+//-----------------------------------------------------------------------------
+
+// Generic linear color gradient, write to RGB fields, leave A untouched.
+void ImGui::ShadeVertsLinearColorGradientKeepAlpha(ImDrawList* draw_list, int vert_start_idx, int vert_end_idx, ImVec2 gradient_p0, ImVec2 gradient_p1, ImU32 col0, ImU32 col1)
+{
+    ImVec2 gradient_extent = gradient_p1 - gradient_p0;
+    float gradient_inv_length2 = 1.0f / ImLengthSqr(gradient_extent);
+    ImDrawVert* vert_start = draw_list->VtxBuffer.Data + vert_start_idx;
+    ImDrawVert* vert_end = draw_list->VtxBuffer.Data + vert_end_idx;
+    const int col0_r = (int)(col0 >> IM_COL32_R_SHIFT) & 0xFF;
+    const int col0_g = (int)(col0 >> IM_COL32_G_SHIFT) & 0xFF;
+    const int col0_b = (int)(col0 >> IM_COL32_B_SHIFT) & 0xFF;
+    const int col_delta_r = ((int)(col1 >> IM_COL32_R_SHIFT) & 0xFF) - col0_r;
+    const int col_delta_g = ((int)(col1 >> IM_COL32_G_SHIFT) & 0xFF) - col0_g;
+    const int col_delta_b = ((int)(col1 >> IM_COL32_B_SHIFT) & 0xFF) - col0_b;
+    for (ImDrawVert* vert = vert_start; vert < vert_end; vert++)
+    {
+        float d = ImDot(vert->pos - gradient_p0, gradient_extent);
+        float t = ImClamp(d * gradient_inv_length2, 0.0f, 1.0f);
+        int r = (int)(col0_r + col_delta_r * t);
+        int g = (int)(col0_g + col_delta_g * t);
+        int b = (int)(col0_b + col_delta_b * t);
+        vert->col = (r << IM_COL32_R_SHIFT) | (g << IM_COL32_G_SHIFT) | (b << IM_COL32_B_SHIFT) | (vert->col & IM_COL32_A_MASK);
+    }
+}
+
+// Distribute UV over (a, b) rectangle
+void ImGui::ShadeVertsLinearUV(ImDrawList* draw_list, int vert_start_idx, int vert_end_idx, const ImVec2& a, const ImVec2& b, const ImVec2& uv_a, const ImVec2& uv_b, bool clamp)
+{
+    const ImVec2 size = b - a;
+    const ImVec2 uv_size = uv_b - uv_a;
+    const ImVec2 scale = ImVec2(
+        size.x != 0.0f ? (uv_size.x / size.x) : 0.0f,
+        size.y != 0.0f ? (uv_size.y / size.y) : 0.0f);
+
+    ImDrawVert* vert_start = draw_list->VtxBuffer.Data + vert_start_idx;
+    ImDrawVert* vert_end = draw_list->VtxBuffer.Data + vert_end_idx;
+    if (clamp)
+    {
+        const ImVec2 min = ImMin(uv_a, uv_b);
+        const ImVec2 max = ImMax(uv_a, uv_b);
+        for (ImDrawVert* vertex = vert_start; vertex < vert_end; ++vertex)
+            vertex->uv = ImClamp(uv_a + ImMul(ImVec2(vertex->pos.x, vertex->pos.y) - a, scale), min, max);
+    }
+    else
+    {
+        for (ImDrawVert* vertex = vert_start; vertex < vert_end; ++vertex)
+            vertex->uv = uv_a + ImMul(ImVec2(vertex->pos.x, vertex->pos.y) - a, scale);
+    }
+}
+
+//-----------------------------------------------------------------------------
+// [SECTION] ImFontConfig
+//-----------------------------------------------------------------------------
+
+ImFontConfig::ImFontConfig()
+{
+    memset(this, 0, sizeof(*this));
+    FontDataOwnedByAtlas = true;
+    OversampleH = 3; // FIXME: 2 may be a better default?
+    OversampleV = 1;
+    GlyphMaxAdvanceX = FLT_MAX;
+    RasterizerMultiply = 1.0f;
+    EllipsisChar = (ImWchar)-1;
+}
+
+//-----------------------------------------------------------------------------
+// [SECTION] ImFontAtlas
+//-----------------------------------------------------------------------------
+
+// A work of art lies ahead! (. = white layer, X = black layer, others are blank)
+// The 2x2 white texels on the top left are the ones we'll use everywhere in Dear ImGui to render filled shapes.
+// (This is used when io.MouseDrawCursor = true)
+const int FONT_ATLAS_DEFAULT_TEX_DATA_W = 122; // Actual texture will be 2 times that + 1 spacing.
+const int FONT_ATLAS_DEFAULT_TEX_DATA_H = 27;
+static const char FONT_ATLAS_DEFAULT_TEX_DATA_PIXELS[FONT_ATLAS_DEFAULT_TEX_DATA_W * FONT_ATLAS_DEFAULT_TEX_DATA_H + 1] =
+{
+    "..-         -XXXXXXX-    X    -           X           -XXXXXXX          -          XXXXXXX-     XX          - XX       XX "
+    "..-         -X.....X-   X.X   -          X.X          -X.....X          -          X.....X-    X..X         -X..X     X..X"
+    "---         -XXX.XXX-  X...X  -         X...X         -X....X           -           X....X-    X..X         -X...X   X...X"
+    "X           -  X.X  - X.....X -        X.....X        -X...X            -            X...X-    X..X         - X...X X...X "
+    "XX          -  X.X  -X.......X-       X.......X       -X..X.X           -           X.X..X-    X..X         -  X...X...X  "
+    "X.X         -  X.X  -XXXX.XXXX-       XXXX.XXXX       -X.X X.X          -          X.X X.X-    X..XXX       -   X.....X   "
+    "X..X        -  X.X  -   X.X   -          X.X          -XX   X.X         -         X.X   XX-    X..X..XXX    -    X...X    "
+    "X...X       -  X.X  -   X.X   -    XX    X.X    XX    -      X.X        -        X.X      -    X..X..X..XX  -     X.X     "
+    "X....X      -  X.X  -   X.X   -   X.X    X.X    X.X   -       X.X       -       X.X       -    X..X..X..X.X -    X...X    "
+    "X.....X     -  X.X  -   X.X   -  X..X    X.X    X..X  -        X.X      -      X.X        -XXX X..X..X..X..X-   X.....X   "
+    "X......X    -  X.X  -   X.X   - X...XXXXXX.XXXXXX...X -         X.X   XX-XX   X.X         -X..XX........X..X-  X...X...X  "
+    "X.......X   -  X.X  -   X.X   -X.....................X-          X.X X.X-X.X X.X          -X...X...........X- X...X X...X "
+    "X........X  -  X.X  -   X.X   - X...XXXXXX.XXXXXX...X -           X.X..X-X..X.X           - X..............X-X...X   X...X"
+    "X.........X -XXX.XXX-   X.X   -  X..X    X.X    X..X  -            X...X-X...X            -  X.............X-X..X     X..X"
+    "X..........X-X.....X-   X.X   -   X.X    X.X    X.X   -           X....X-X....X           -  X.............X- XX       XX "
+    "X......XXXXX-XXXXXXX-   X.X   -    XX    X.X    XX    -          X.....X-X.....X          -   X............X--------------"
+    "X...X..X    ---------   X.X   -          X.X          -          XXXXXXX-XXXXXXX          -   X...........X -             "
+    "X..X X..X   -       -XXXX.XXXX-       XXXX.XXXX       -------------------------------------    X..........X -             "
+    "X.X  X..X   -       -X.......X-       X.......X       -    XX           XX    -           -    X..........X -             "
+    "XX    X..X  -       - X.....X -        X.....X        -   X.X           X.X   -           -     X........X  -             "
+    "      X..X  -       -  X...X  -         X...X         -  X..X           X..X  -           -     X........X  -             "
+    "       XX   -       -   X.X   -          X.X          - X...XXXXXXXXXXXXX...X -           -     XXXXXXXXXX  -             "
+    "-------------       -    X    -           X           -X.....................X-           -------------------             "
+    "                    ----------------------------------- X...XXXXXXXXXXXXX...X -                                           "
+    "                                                      -  X..X           X..X  -                                           "
+    "                                                      -   X.X           X.X   -                                           "
+    "                                                      -    XX           XX    -                                           "
+};
+
+static const ImVec2 FONT_ATLAS_DEFAULT_TEX_CURSOR_DATA[ImGuiMouseCursor_COUNT][3] =
+{
+    // Pos ........ Size ......... Offset ......
+    { ImVec2( 0,3), ImVec2(12,19), ImVec2( 0, 0) }, // ImGuiMouseCursor_Arrow
+    { ImVec2(13,0), ImVec2( 7,16), ImVec2( 1, 8) }, // ImGuiMouseCursor_TextInput
+    { ImVec2(31,0), ImVec2(23,23), ImVec2(11,11) }, // ImGuiMouseCursor_ResizeAll
+    { ImVec2(21,0), ImVec2( 9,23), ImVec2( 4,11) }, // ImGuiMouseCursor_ResizeNS
+    { ImVec2(55,18),ImVec2(23, 9), ImVec2(11, 4) }, // ImGuiMouseCursor_ResizeEW
+    { ImVec2(73,0), ImVec2(17,17), ImVec2( 8, 8) }, // ImGuiMouseCursor_ResizeNESW
+    { ImVec2(55,0), ImVec2(17,17), ImVec2( 8, 8) }, // ImGuiMouseCursor_ResizeNWSE
+    { ImVec2(91,0), ImVec2(17,22), ImVec2( 5, 0) }, // ImGuiMouseCursor_Hand
+    { ImVec2(109,0),ImVec2(13,15), ImVec2( 6, 7) }, // ImGuiMouseCursor_NotAllowed
+};
+
+ImFontAtlas::ImFontAtlas()
+{
+    memset(this, 0, sizeof(*this));
+    TexGlyphPadding = 1;
+    PackIdMouseCursors = PackIdLines = -1;
+}
+
+ImFontAtlas::~ImFontAtlas()
+{
+    IM_ASSERT(!Locked && "Cannot modify a locked ImFontAtlas between NewFrame() and EndFrame/Render()!");
+    Clear();
+}
+
+void    ImFontAtlas::ClearInputData()
+{
+    IM_ASSERT(!Locked && "Cannot modify a locked ImFontAtlas between NewFrame() and EndFrame/Render()!");
+    for (int i = 0; i < ConfigData.Size; i++)
+        if (ConfigData[i].FontData && ConfigData[i].FontDataOwnedByAtlas)
+        {
+            IM_FREE(ConfigData[i].FontData);
+            ConfigData[i].FontData = NULL;
+        }
+
+    // When clearing this we lose access to the font name and other information used to build the font.
+    for (int i = 0; i < Fonts.Size; i++)
+        if (Fonts[i]->ConfigData >= ConfigData.Data && Fonts[i]->ConfigData < ConfigData.Data + ConfigData.Size)
+        {
+            Fonts[i]->ConfigData = NULL;
+            Fonts[i]->ConfigDataCount = 0;
+        }
+    ConfigData.clear();
+    CustomRects.clear();
+    PackIdMouseCursors = PackIdLines = -1;
+    // Important: we leave TexReady untouched
+}
+
+void    ImFontAtlas::ClearTexData()
+{
+    IM_ASSERT(!Locked && "Cannot modify a locked ImFontAtlas between NewFrame() and EndFrame/Render()!");
+    if (TexPixelsAlpha8)
+        IM_FREE(TexPixelsAlpha8);
+    if (TexPixelsRGBA32)
+        IM_FREE(TexPixelsRGBA32);
+    TexPixelsAlpha8 = NULL;
+    TexPixelsRGBA32 = NULL;
+    TexPixelsUseColors = false;
+    // Important: we leave TexReady untouched
+}
+
+void    ImFontAtlas::ClearFonts()
+{
+    IM_ASSERT(!Locked && "Cannot modify a locked ImFontAtlas between NewFrame() and EndFrame/Render()!");
+    Fonts.clear_delete();
+    TexReady = false;
+}
+
+void    ImFontAtlas::Clear()
+{
+    ClearInputData();
+    ClearTexData();
+    ClearFonts();
+}
+
+void    ImFontAtlas::GetTexDataAsAlpha8(unsigned char** out_pixels, int* out_width, int* out_height, int* out_bytes_per_pixel)
+{
+    // Build atlas on demand
+    if (TexPixelsAlpha8 == NULL)
+        Build();
+
+    *out_pixels = TexPixelsAlpha8;
+    if (out_width) *out_width = TexWidth;
+    if (out_height) *out_height = TexHeight;
+    if (out_bytes_per_pixel) *out_bytes_per_pixel = 1;
+}
+
+void    ImFontAtlas::GetTexDataAsRGBA32(unsigned char** out_pixels, int* out_width, int* out_height, int* out_bytes_per_pixel)
+{
+    // Convert to RGBA32 format on demand
+    // Although it is likely to be the most commonly used format, our font rendering is 1 channel / 8 bpp
+    if (!TexPixelsRGBA32)
+    {
+        unsigned char* pixels = NULL;
+        GetTexDataAsAlpha8(&pixels, NULL, NULL);
+        if (pixels)
+        {
+            TexPixelsRGBA32 = (unsigned int*)IM_ALLOC((size_t)TexWidth * (size_t)TexHeight * 4);
+            const unsigned char* src = pixels;
+            unsigned int* dst = TexPixelsRGBA32;
+            for (int n = TexWidth * TexHeight; n > 0; n--)
+                *dst++ = IM_COL32(255, 255, 255, (unsigned int)(*src++));
+        }
+    }
+
+    *out_pixels = (unsigned char*)TexPixelsRGBA32;
+    if (out_width) *out_width = TexWidth;
+    if (out_height) *out_height = TexHeight;
+    if (out_bytes_per_pixel) *out_bytes_per_pixel = 4;
+}
+
+ImFont* ImFontAtlas::AddFont(const ImFontConfig* font_cfg)
+{
+    IM_ASSERT(!Locked && "Cannot modify a locked ImFontAtlas between NewFrame() and EndFrame/Render()!");
+    IM_ASSERT(font_cfg->FontData != NULL && font_cfg->FontDataSize > 0);
+    IM_ASSERT(font_cfg->SizePixels > 0.0f);
+
+    // Create new font
+    if (!font_cfg->MergeMode)
+        Fonts.push_back(IM_NEW(ImFont));
+    else
+        IM_ASSERT(!Fonts.empty() && "Cannot use MergeMode for the first font"); // When using MergeMode make sure that a font has already been added before. You can use ImGui::GetIO().Fonts->AddFontDefault() to add the default imgui font.
+
+    ConfigData.push_back(*font_cfg);
+    ImFontConfig& new_font_cfg = ConfigData.back();
+    if (new_font_cfg.DstFont == NULL)
+        new_font_cfg.DstFont = Fonts.back();
+    if (!new_font_cfg.FontDataOwnedByAtlas)
+    {
+        new_font_cfg.FontData = IM_ALLOC(new_font_cfg.FontDataSize);
+        new_font_cfg.FontDataOwnedByAtlas = true;
+        memcpy(new_font_cfg.FontData, font_cfg->FontData, (size_t)new_font_cfg.FontDataSize);
+    }
+
+    if (new_font_cfg.DstFont->EllipsisChar == (ImWchar)-1)
+        new_font_cfg.DstFont->EllipsisChar = font_cfg->EllipsisChar;
+
+    // Invalidate texture
+    TexReady = false;
+    ClearTexData();
+    return new_font_cfg.DstFont;
+}
+
+// Default font TTF is compressed with stb_compress then base85 encoded (see misc/fonts/binary_to_compressed_c.cpp for encoder)
+static unsigned int stb_decompress_length(const unsigned char* input);
+static unsigned int stb_decompress(unsigned char* output, const unsigned char* input, unsigned int length);
+static const char*  GetDefaultCompressedFontDataTTFBase85();
+static unsigned int Decode85Byte(char c)                                    { return c >= '\\' ? c-36 : c-35; }
+static void         Decode85(const unsigned char* src, unsigned char* dst)
+{
+    while (*src)
+    {
+        unsigned int tmp = Decode85Byte(src[0]) + 85 * (Decode85Byte(src[1]) + 85 * (Decode85Byte(src[2]) + 85 * (Decode85Byte(src[3]) + 85 * Decode85Byte(src[4]))));
+        dst[0] = ((tmp >> 0) & 0xFF); dst[1] = ((tmp >> 8) & 0xFF); dst[2] = ((tmp >> 16) & 0xFF); dst[3] = ((tmp >> 24) & 0xFF);   // We can't assume little-endianness.
+        src += 5;
+        dst += 4;
+    }
+}
+
+// Load embedded ProggyClean.ttf at size 13, disable oversampling
+ImFont* ImFontAtlas::AddFontDefault(const ImFontConfig* font_cfg_template)
+{
+    ImFontConfig font_cfg = font_cfg_template ? *font_cfg_template : ImFontConfig();
+    if (!font_cfg_template)
+    {
+        font_cfg.OversampleH = font_cfg.OversampleV = 1;
+        font_cfg.PixelSnapH = true;
+    }
+    if (font_cfg.SizePixels <= 0.0f)
+        font_cfg.SizePixels = 13.0f * 1.0f;
+    if (font_cfg.Name[0] == '\0')
+        ImFormatString(font_cfg.Name, IM_ARRAYSIZE(font_cfg.Name), "ProggyClean.ttf, %dpx", (int)font_cfg.SizePixels);
+    font_cfg.EllipsisChar = (ImWchar)0x0085;
+    font_cfg.GlyphOffset.y = 1.0f * IM_FLOOR(font_cfg.SizePixels / 13.0f);  // Add +1 offset per 13 units
+
+    const char* ttf_compressed_base85 = GetDefaultCompressedFontDataTTFBase85();
+    const ImWchar* glyph_ranges = font_cfg.GlyphRanges != NULL ? font_cfg.GlyphRanges : GetGlyphRangesDefault();
+    ImFont* font = AddFontFromMemoryCompressedBase85TTF(ttf_compressed_base85, font_cfg.SizePixels, &font_cfg, glyph_ranges);
+    return font;
+}
+
+ImFont* ImFontAtlas::AddFontFromFileTTF(const char* filename, float size_pixels, const ImFontConfig* font_cfg_template, const ImWchar* glyph_ranges)
+{
+    IM_ASSERT(!Locked && "Cannot modify a locked ImFontAtlas between NewFrame() and EndFrame/Render()!");
+    size_t data_size = 0;
+    void* data = ImFileLoadToMemory(filename, "rb", &data_size, 0);
+    if (!data)
+    {
+        IM_ASSERT_USER_ERROR(0, "Could not load font file!");
+        return NULL;
+    }
+    ImFontConfig font_cfg = font_cfg_template ? *font_cfg_template : ImFontConfig();
+    if (font_cfg.Name[0] == '\0')
+    {
+        // Store a short copy of filename into into the font name for convenience
+        const char* p;
+        for (p = filename + strlen(filename); p > filename && p[-1] != '/' && p[-1] != '\\'; p--) {}
+        ImFormatString(font_cfg.Name, IM_ARRAYSIZE(font_cfg.Name), "%s, %.0fpx", p, size_pixels);
+    }
+    return AddFontFromMemoryTTF(data, (int)data_size, size_pixels, &font_cfg, glyph_ranges);
+}
+
+// NB: Transfer ownership of 'ttf_data' to ImFontAtlas, unless font_cfg_template->FontDataOwnedByAtlas == false. Owned TTF buffer will be deleted after Build().
+ImFont* ImFontAtlas::AddFontFromMemoryTTF(void* ttf_data, int ttf_size, float size_pixels, const ImFontConfig* font_cfg_template, const ImWchar* glyph_ranges)
+{
+    IM_ASSERT(!Locked && "Cannot modify a locked ImFontAtlas between NewFrame() and EndFrame/Render()!");
+    ImFontConfig font_cfg = font_cfg_template ? *font_cfg_template : ImFontConfig();
+    IM_ASSERT(font_cfg.FontData == NULL);
+    font_cfg.FontData = ttf_data;
+    font_cfg.FontDataSize = ttf_size;
+    font_cfg.SizePixels = size_pixels > 0.0f ? size_pixels : font_cfg.SizePixels;
+    if (glyph_ranges)
+        font_cfg.GlyphRanges = glyph_ranges;
+    return AddFont(&font_cfg);
+}
+
+ImFont* ImFontAtlas::AddFontFromMemoryCompressedTTF(const void* compressed_ttf_data, int compressed_ttf_size, float size_pixels, const ImFontConfig* font_cfg_template, const ImWchar* glyph_ranges)
+{
+    const unsigned int buf_decompressed_size = stb_decompress_length((const unsigned char*)compressed_ttf_data);
+    unsigned char* buf_decompressed_data = (unsigned char*)IM_ALLOC(buf_decompressed_size);
+    stb_decompress(buf_decompressed_data, (const unsigned char*)compressed_ttf_data, (unsigned int)compressed_ttf_size);
+
+    ImFontConfig font_cfg = font_cfg_template ? *font_cfg_template : ImFontConfig();
+    IM_ASSERT(font_cfg.FontData == NULL);
+    font_cfg.FontDataOwnedByAtlas = true;
+    return AddFontFromMemoryTTF(buf_decompressed_data, (int)buf_decompressed_size, size_pixels, &font_cfg, glyph_ranges);
+}
+
+ImFont* ImFontAtlas::AddFontFromMemoryCompressedBase85TTF(const char* compressed_ttf_data_base85, float size_pixels, const ImFontConfig* font_cfg, const ImWchar* glyph_ranges)
+{
+    int compressed_ttf_size = (((int)strlen(compressed_ttf_data_base85) + 4) / 5) * 4;
+    void* compressed_ttf = IM_ALLOC((size_t)compressed_ttf_size);
+    Decode85((const unsigned char*)compressed_ttf_data_base85, (unsigned char*)compressed_ttf);
+    ImFont* font = AddFontFromMemoryCompressedTTF(compressed_ttf, compressed_ttf_size, size_pixels, font_cfg, glyph_ranges);
+    IM_FREE(compressed_ttf);
+    return font;
+}
+
+int ImFontAtlas::AddCustomRectRegular(int width, int height)
+{
+    IM_ASSERT(width > 0 && width <= 0xFFFF);
+    IM_ASSERT(height > 0 && height <= 0xFFFF);
+    ImFontAtlasCustomRect r;
+    r.Width = (unsigned short)width;
+    r.Height = (unsigned short)height;
+    CustomRects.push_back(r);
+    return CustomRects.Size - 1; // Return index
+}
+
+int ImFontAtlas::AddCustomRectFontGlyph(ImFont* font, ImWchar id, int width, int height, float advance_x, const ImVec2& offset)
+{
+#ifdef IMGUI_USE_WCHAR32
+    IM_ASSERT(id <= IM_UNICODE_CODEPOINT_MAX);
+#endif
+    IM_ASSERT(font != NULL);
+    IM_ASSERT(width > 0 && width <= 0xFFFF);
+    IM_ASSERT(height > 0 && height <= 0xFFFF);
+    ImFontAtlasCustomRect r;
+    r.Width = (unsigned short)width;
+    r.Height = (unsigned short)height;
+    r.GlyphID = id;
+    r.GlyphAdvanceX = advance_x;
+    r.GlyphOffset = offset;
+    r.Font = font;
+    CustomRects.push_back(r);
+    return CustomRects.Size - 1; // Return index
+}
+
+void ImFontAtlas::CalcCustomRectUV(const ImFontAtlasCustomRect* rect, ImVec2* out_uv_min, ImVec2* out_uv_max) const
+{
+    IM_ASSERT(TexWidth > 0 && TexHeight > 0);   // Font atlas needs to be built before we can calculate UV coordinates
+    IM_ASSERT(rect->IsPacked());                // Make sure the rectangle has been packed
+    *out_uv_min = ImVec2((float)rect->X * TexUvScale.x, (float)rect->Y * TexUvScale.y);
+    *out_uv_max = ImVec2((float)(rect->X + rect->Width) * TexUvScale.x, (float)(rect->Y + rect->Height) * TexUvScale.y);
+}
+
+bool ImFontAtlas::GetMouseCursorTexData(ImGuiMouseCursor cursor_type, ImVec2* out_offset, ImVec2* out_size, ImVec2 out_uv_border[2], ImVec2 out_uv_fill[2])
+{
+    if (cursor_type <= ImGuiMouseCursor_None || cursor_type >= ImGuiMouseCursor_COUNT)
+        return false;
+    if (Flags & ImFontAtlasFlags_NoMouseCursors)
+        return false;
+
+    IM_ASSERT(PackIdMouseCursors != -1);
+    ImFontAtlasCustomRect* r = GetCustomRectByIndex(PackIdMouseCursors);
+    ImVec2 pos = FONT_ATLAS_DEFAULT_TEX_CURSOR_DATA[cursor_type][0] + ImVec2((float)r->X, (float)r->Y);
+    ImVec2 size = FONT_ATLAS_DEFAULT_TEX_CURSOR_DATA[cursor_type][1];
+    *out_size = size;
+    *out_offset = FONT_ATLAS_DEFAULT_TEX_CURSOR_DATA[cursor_type][2];
+    out_uv_border[0] = (pos) * TexUvScale;
+    out_uv_border[1] = (pos + size) * TexUvScale;
+    pos.x += FONT_ATLAS_DEFAULT_TEX_DATA_W + 1;
+    out_uv_fill[0] = (pos) * TexUvScale;
+    out_uv_fill[1] = (pos + size) * TexUvScale;
+    return true;
+}
+
+bool    ImFontAtlas::Build()
+{
+    IM_ASSERT(!Locked && "Cannot modify a locked ImFontAtlas between NewFrame() and EndFrame/Render()!");
+
+    // Default font is none are specified
+    if (ConfigData.Size == 0)
+        AddFontDefault();
+
+    // Select builder
+    // - Note that we do not reassign to atlas->FontBuilderIO, since it is likely to point to static data which
+    //   may mess with some hot-reloading schemes. If you need to assign to this (for dynamic selection) AND are
+    //   using a hot-reloading scheme that messes up static data, store your own instance of ImFontBuilderIO somewhere
+    //   and point to it instead of pointing directly to return value of the GetBuilderXXX functions.
+    const ImFontBuilderIO* builder_io = FontBuilderIO;
+    if (builder_io == NULL)
+    {
+#ifdef IMGUI_ENABLE_FREETYPE
+        builder_io = ImGuiFreeType::GetBuilderForFreeType();
+#elif defined(IMGUI_ENABLE_STB_TRUETYPE)
+        builder_io = ImFontAtlasGetBuilderForStbTruetype();
+#else
+        IM_ASSERT(0); // Invalid Build function
+#endif
+    }
+
+    // Build
+    return builder_io->FontBuilder_Build(this);
+}
+
+void    ImFontAtlasBuildMultiplyCalcLookupTable(unsigned char out_table[256], float in_brighten_factor)
+{
+    for (unsigned int i = 0; i < 256; i++)
+    {
+        unsigned int value = (unsigned int)(i * in_brighten_factor);
+        out_table[i] = value > 255 ? 255 : (value & 0xFF);
+    }
+}
+
+void    ImFontAtlasBuildMultiplyRectAlpha8(const unsigned char table[256], unsigned char* pixels, int x, int y, int w, int h, int stride)
+{
+    unsigned char* data = pixels + x + y * stride;
+    for (int j = h; j > 0; j--, data += stride)
+        for (int i = 0; i < w; i++)
+            data[i] = table[data[i]];
+}
+
+#ifdef IMGUI_ENABLE_STB_TRUETYPE
+// Temporary data for one source font (multiple source fonts can be merged into one destination ImFont)
+// (C++03 doesn't allow instancing ImVector<> with function-local types so we declare the type here.)
+struct ImFontBuildSrcData
+{
+    stbtt_fontinfo      FontInfo;
+    stbtt_pack_range    PackRange;          // Hold the list of codepoints to pack (essentially points to Codepoints.Data)
+    stbrp_rect*         Rects;              // Rectangle to pack. We first fill in their size and the packer will give us their position.
+    stbtt_packedchar*   PackedChars;        // Output glyphs
+    const ImWchar*      SrcRanges;          // Ranges as requested by user (user is allowed to request too much, e.g. 0x0020..0xFFFF)
+    int                 DstIndex;           // Index into atlas->Fonts[] and dst_tmp_array[]
+    int                 GlyphsHighest;      // Highest requested codepoint
+    int                 GlyphsCount;        // Glyph count (excluding missing glyphs and glyphs already set by an earlier source font)
+    ImBitVector         GlyphsSet;          // Glyph bit map (random access, 1-bit per codepoint. This will be a maximum of 8KB)
+    ImVector<int>       GlyphsList;         // Glyph codepoints list (flattened version of GlyphsMap)
+};
+
+// Temporary data for one destination ImFont* (multiple source fonts can be merged into one destination ImFont)
+struct ImFontBuildDstData
+{
+    int                 SrcCount;           // Number of source fonts targeting this destination font.
+    int                 GlyphsHighest;
+    int                 GlyphsCount;
+    ImBitVector         GlyphsSet;          // This is used to resolve collision when multiple sources are merged into a same destination font.
+};
+
+static void UnpackBitVectorToFlatIndexList(const ImBitVector* in, ImVector<int>* out)
+{
+    IM_ASSERT(sizeof(in->Storage.Data[0]) == sizeof(int));
+    const ImU32* it_begin = in->Storage.begin();
+    const ImU32* it_end = in->Storage.end();
+    for (const ImU32* it = it_begin; it < it_end; it++)
+        if (ImU32 entries_32 = *it)
+            for (ImU32 bit_n = 0; bit_n < 32; bit_n++)
+                if (entries_32 & ((ImU32)1 << bit_n))
+                    out->push_back((int)(((it - it_begin) << 5) + bit_n));
+}
+
+static bool ImFontAtlasBuildWithStbTruetype(ImFontAtlas* atlas)
+{
+    IM_ASSERT(atlas->ConfigData.Size > 0);
+
+    ImFontAtlasBuildInit(atlas);
+
+    // Clear atlas
+    atlas->TexID = (ImTextureID)NULL;
+    atlas->TexWidth = atlas->TexHeight = 0;
+    atlas->TexUvScale = ImVec2(0.0f, 0.0f);
+    atlas->TexUvWhitePixel = ImVec2(0.0f, 0.0f);
+    atlas->ClearTexData();
+
+    // Temporary storage for building
+    ImVector<ImFontBuildSrcData> src_tmp_array;
+    ImVector<ImFontBuildDstData> dst_tmp_array;
+    src_tmp_array.resize(atlas->ConfigData.Size);
+    dst_tmp_array.resize(atlas->Fonts.Size);
+    memset(src_tmp_array.Data, 0, (size_t)src_tmp_array.size_in_bytes());
+    memset(dst_tmp_array.Data, 0, (size_t)dst_tmp_array.size_in_bytes());
+
+    // 1. Initialize font loading structure, check font data validity
+    for (int src_i = 0; src_i < atlas->ConfigData.Size; src_i++)
+    {
+        ImFontBuildSrcData& src_tmp = src_tmp_array[src_i];
+        ImFontConfig& cfg = atlas->ConfigData[src_i];
+        IM_ASSERT(cfg.DstFont && (!cfg.DstFont->IsLoaded() || cfg.DstFont->ContainerAtlas == atlas));
+
+        // Find index from cfg.DstFont (we allow the user to set cfg.DstFont. Also it makes casual debugging nicer than when storing indices)
+        src_tmp.DstIndex = -1;
+        for (int output_i = 0; output_i < atlas->Fonts.Size && src_tmp.DstIndex == -1; output_i++)
+            if (cfg.DstFont == atlas->Fonts[output_i])
+                src_tmp.DstIndex = output_i;
+        if (src_tmp.DstIndex == -1)
+        {
+            IM_ASSERT(src_tmp.DstIndex != -1); // cfg.DstFont not pointing within atlas->Fonts[] array?
+            return false;
+        }
+        // Initialize helper structure for font loading and verify that the TTF/OTF data is correct
+        const int font_offset = stbtt_GetFontOffsetForIndex((unsigned char*)cfg.FontData, cfg.FontNo);
+        IM_ASSERT(font_offset >= 0 && "FontData is incorrect, or FontNo cannot be found.");
+        if (!stbtt_InitFont(&src_tmp.FontInfo, (unsigned char*)cfg.FontData, font_offset))
+            return false;
+
+        // Measure highest codepoints
+        ImFontBuildDstData& dst_tmp = dst_tmp_array[src_tmp.DstIndex];
+        src_tmp.SrcRanges = cfg.GlyphRanges ? cfg.GlyphRanges : atlas->GetGlyphRangesDefault();
+        for (const ImWchar* src_range = src_tmp.SrcRanges; src_range[0] && src_range[1]; src_range += 2)
+            src_tmp.GlyphsHighest = ImMax(src_tmp.GlyphsHighest, (int)src_range[1]);
+        dst_tmp.SrcCount++;
+        dst_tmp.GlyphsHighest = ImMax(dst_tmp.GlyphsHighest, src_tmp.GlyphsHighest);
+    }
+
+    // 2. For every requested codepoint, check for their presence in the font data, and handle redundancy or overlaps between source fonts to avoid unused glyphs.
+    int total_glyphs_count = 0;
+    for (int src_i = 0; src_i < src_tmp_array.Size; src_i++)
+    {
+        ImFontBuildSrcData& src_tmp = src_tmp_array[src_i];
+        ImFontBuildDstData& dst_tmp = dst_tmp_array[src_tmp.DstIndex];
+        src_tmp.GlyphsSet.Create(src_tmp.GlyphsHighest + 1);
+        if (dst_tmp.GlyphsSet.Storage.empty())
+            dst_tmp.GlyphsSet.Create(dst_tmp.GlyphsHighest + 1);
+
+        for (const ImWchar* src_range = src_tmp.SrcRanges; src_range[0] && src_range[1]; src_range += 2)
+            for (unsigned int codepoint = src_range[0]; codepoint <= src_range[1]; codepoint++)
+            {
+                if (dst_tmp.GlyphsSet.TestBit(codepoint))    // Don't overwrite existing glyphs. We could make this an option for MergeMode (e.g. MergeOverwrite==true)
+                    continue;
+                if (!stbtt_FindGlyphIndex(&src_tmp.FontInfo, codepoint))    // It is actually in the font?
+                    continue;
+
+                // Add to avail set/counters
+                src_tmp.GlyphsCount++;
+                dst_tmp.GlyphsCount++;
+                src_tmp.GlyphsSet.SetBit(codepoint);
+                dst_tmp.GlyphsSet.SetBit(codepoint);
+                total_glyphs_count++;
+            }
+    }
+
+    // 3. Unpack our bit map into a flat list (we now have all the Unicode points that we know are requested _and_ available _and_ not overlapping another)
+    for (int src_i = 0; src_i < src_tmp_array.Size; src_i++)
+    {
+        ImFontBuildSrcData& src_tmp = src_tmp_array[src_i];
+        src_tmp.GlyphsList.reserve(src_tmp.GlyphsCount);
+        UnpackBitVectorToFlatIndexList(&src_tmp.GlyphsSet, &src_tmp.GlyphsList);
+        src_tmp.GlyphsSet.Clear();
+        IM_ASSERT(src_tmp.GlyphsList.Size == src_tmp.GlyphsCount);
+    }
+    for (int dst_i = 0; dst_i < dst_tmp_array.Size; dst_i++)
+        dst_tmp_array[dst_i].GlyphsSet.Clear();
+    dst_tmp_array.clear();
+
+    // Allocate packing character data and flag packed characters buffer as non-packed (x0=y0=x1=y1=0)
+    // (We technically don't need to zero-clear buf_rects, but let's do it for the sake of sanity)
+    ImVector<stbrp_rect> buf_rects;
+    ImVector<stbtt_packedchar> buf_packedchars;
+    buf_rects.resize(total_glyphs_count);
+    buf_packedchars.resize(total_glyphs_count);
+    memset(buf_rects.Data, 0, (size_t)buf_rects.size_in_bytes());
+    memset(buf_packedchars.Data, 0, (size_t)buf_packedchars.size_in_bytes());
+
+    // 4. Gather glyphs sizes so we can pack them in our virtual canvas.
+    int total_surface = 0;
+    int buf_rects_out_n = 0;
+    int buf_packedchars_out_n = 0;
+    for (int src_i = 0; src_i < src_tmp_array.Size; src_i++)
+    {
+        ImFontBuildSrcData& src_tmp = src_tmp_array[src_i];
+        if (src_tmp.GlyphsCount == 0)
+            continue;
+
+        src_tmp.Rects = &buf_rects[buf_rects_out_n];
+        src_tmp.PackedChars = &buf_packedchars[buf_packedchars_out_n];
+        buf_rects_out_n += src_tmp.GlyphsCount;
+        buf_packedchars_out_n += src_tmp.GlyphsCount;
+
+        // Convert our ranges in the format stb_truetype wants
+        ImFontConfig& cfg = atlas->ConfigData[src_i];
+        src_tmp.PackRange.font_size = cfg.SizePixels;
+        src_tmp.PackRange.first_unicode_codepoint_in_range = 0;
+        src_tmp.PackRange.array_of_unicode_codepoints = src_tmp.GlyphsList.Data;
+        src_tmp.PackRange.num_chars = src_tmp.GlyphsList.Size;
+        src_tmp.PackRange.chardata_for_range = src_tmp.PackedChars;
+        src_tmp.PackRange.h_oversample = (unsigned char)cfg.OversampleH;
+        src_tmp.PackRange.v_oversample = (unsigned char)cfg.OversampleV;
+
+        // Gather the sizes of all rectangles we will need to pack (this loop is based on stbtt_PackFontRangesGatherRects)
+        const float scale = (cfg.SizePixels > 0) ? stbtt_ScaleForPixelHeight(&src_tmp.FontInfo, cfg.SizePixels) : stbtt_ScaleForMappingEmToPixels(&src_tmp.FontInfo, -cfg.SizePixels);
+        const int padding = atlas->TexGlyphPadding;
+        for (int glyph_i = 0; glyph_i < src_tmp.GlyphsList.Size; glyph_i++)
+        {
+            int x0, y0, x1, y1;
+            const int glyph_index_in_font = stbtt_FindGlyphIndex(&src_tmp.FontInfo, src_tmp.GlyphsList[glyph_i]);
+            IM_ASSERT(glyph_index_in_font != 0);
+            stbtt_GetGlyphBitmapBoxSubpixel(&src_tmp.FontInfo, glyph_index_in_font, scale * cfg.OversampleH, scale * cfg.OversampleV, 0, 0, &x0, &y0, &x1, &y1);
+            src_tmp.Rects[glyph_i].w = (stbrp_coord)(x1 - x0 + padding + cfg.OversampleH - 1);
+            src_tmp.Rects[glyph_i].h = (stbrp_coord)(y1 - y0 + padding + cfg.OversampleV - 1);
+            total_surface += src_tmp.Rects[glyph_i].w * src_tmp.Rects[glyph_i].h;
+        }
+    }
+
+    // We need a width for the skyline algorithm, any width!
+    // The exact width doesn't really matter much, but some API/GPU have texture size limitations and increasing width can decrease height.
+    // User can override TexDesiredWidth and TexGlyphPadding if they wish, otherwise we use a simple heuristic to select the width based on expected surface.
+    const int surface_sqrt = (int)ImSqrt((float)total_surface) + 1;
+    atlas->TexHeight = 0;
+    if (atlas->TexDesiredWidth > 0)
+        atlas->TexWidth = atlas->TexDesiredWidth;
+    else
+        atlas->TexWidth = (surface_sqrt >= 4096 * 0.7f) ? 4096 : (surface_sqrt >= 2048 * 0.7f) ? 2048 : (surface_sqrt >= 1024 * 0.7f) ? 1024 : 512;
+
+    // 5. Start packing
+    // Pack our extra data rectangles first, so it will be on the upper-left corner of our texture (UV will have small values).
+    const int TEX_HEIGHT_MAX = 1024 * 32;
+    stbtt_pack_context spc = {};
+    stbtt_PackBegin(&spc, NULL, atlas->TexWidth, TEX_HEIGHT_MAX, 0, atlas->TexGlyphPadding, NULL);
+    ImFontAtlasBuildPackCustomRects(atlas, spc.pack_info);
+
+    // 6. Pack each source font. No rendering yet, we are working with rectangles in an infinitely tall texture at this point.
+    for (int src_i = 0; src_i < src_tmp_array.Size; src_i++)
+    {
+        ImFontBuildSrcData& src_tmp = src_tmp_array[src_i];
+        if (src_tmp.GlyphsCount == 0)
+            continue;
+
+        stbrp_pack_rects((stbrp_context*)spc.pack_info, src_tmp.Rects, src_tmp.GlyphsCount);
+
+        // Extend texture height and mark missing glyphs as non-packed so we won't render them.
+        // FIXME: We are not handling packing failure here (would happen if we got off TEX_HEIGHT_MAX or if a single if larger than TexWidth?)
+        for (int glyph_i = 0; glyph_i < src_tmp.GlyphsCount; glyph_i++)
+            if (src_tmp.Rects[glyph_i].was_packed)
+                atlas->TexHeight = ImMax(atlas->TexHeight, src_tmp.Rects[glyph_i].y + src_tmp.Rects[glyph_i].h);
+    }
+
+    // 7. Allocate texture
+    atlas->TexHeight = (atlas->Flags & ImFontAtlasFlags_NoPowerOfTwoHeight) ? (atlas->TexHeight + 1) : ImUpperPowerOfTwo(atlas->TexHeight);
+    atlas->TexUvScale = ImVec2(1.0f / atlas->TexWidth, 1.0f / atlas->TexHeight);
+    atlas->TexPixelsAlpha8 = (unsigned char*)IM_ALLOC(atlas->TexWidth * atlas->TexHeight);
+    memset(atlas->TexPixelsAlpha8, 0, atlas->TexWidth * atlas->TexHeight);
+    spc.pixels = atlas->TexPixelsAlpha8;
+    spc.height = atlas->TexHeight;
+
+    // 8. Render/rasterize font characters into the texture
+    for (int src_i = 0; src_i < src_tmp_array.Size; src_i++)
+    {
+        ImFontConfig& cfg = atlas->ConfigData[src_i];
+        ImFontBuildSrcData& src_tmp = src_tmp_array[src_i];
+        if (src_tmp.GlyphsCount == 0)
+            continue;
+
+        stbtt_PackFontRangesRenderIntoRects(&spc, &src_tmp.FontInfo, &src_tmp.PackRange, 1, src_tmp.Rects);
+
+        // Apply multiply operator
+        if (cfg.RasterizerMultiply != 1.0f)
+        {
+            unsigned char multiply_table[256];
+            ImFontAtlasBuildMultiplyCalcLookupTable(multiply_table, cfg.RasterizerMultiply);
+            stbrp_rect* r = &src_tmp.Rects[0];
+            for (int glyph_i = 0; glyph_i < src_tmp.GlyphsCount; glyph_i++, r++)
+                if (r->was_packed)
+                    ImFontAtlasBuildMultiplyRectAlpha8(multiply_table, atlas->TexPixelsAlpha8, r->x, r->y, r->w, r->h, atlas->TexWidth * 1);
+        }
+        src_tmp.Rects = NULL;
+    }
+
+    // End packing
+    stbtt_PackEnd(&spc);
+    buf_rects.clear();
+
+    // 9. Setup ImFont and glyphs for runtime
+    for (int src_i = 0; src_i < src_tmp_array.Size; src_i++)
+    {
+        ImFontBuildSrcData& src_tmp = src_tmp_array[src_i];
+        if (src_tmp.GlyphsCount == 0)
+            continue;
+
+        // When merging fonts with MergeMode=true:
+        // - We can have multiple input fonts writing into a same destination font.
+        // - dst_font->ConfigData is != from cfg which is our source configuration.
+        ImFontConfig& cfg = atlas->ConfigData[src_i];
+        ImFont* dst_font = cfg.DstFont;
+
+        const float font_scale = stbtt_ScaleForPixelHeight(&src_tmp.FontInfo, cfg.SizePixels);
+        int unscaled_ascent, unscaled_descent, unscaled_line_gap;
+        stbtt_GetFontVMetrics(&src_tmp.FontInfo, &unscaled_ascent, &unscaled_descent, &unscaled_line_gap);
+
+        const float ascent = ImFloor(unscaled_ascent * font_scale + ((unscaled_ascent > 0.0f) ? +1 : -1));
+        const float descent = ImFloor(unscaled_descent * font_scale + ((unscaled_descent > 0.0f) ? +1 : -1));
+        ImFontAtlasBuildSetupFont(atlas, dst_font, &cfg, ascent, descent);
+        const float font_off_x = cfg.GlyphOffset.x;
+        const float font_off_y = cfg.GlyphOffset.y + IM_ROUND(dst_font->Ascent);
+
+        for (int glyph_i = 0; glyph_i < src_tmp.GlyphsCount; glyph_i++)
+        {
+            // Register glyph
+            const int codepoint = src_tmp.GlyphsList[glyph_i];
+            const stbtt_packedchar& pc = src_tmp.PackedChars[glyph_i];
+            stbtt_aligned_quad q;
+            float unused_x = 0.0f, unused_y = 0.0f;
+            stbtt_GetPackedQuad(src_tmp.PackedChars, atlas->TexWidth, atlas->TexHeight, glyph_i, &unused_x, &unused_y, &q, 0);
+            dst_font->AddGlyph(&cfg, (ImWchar)codepoint, q.x0 + font_off_x, q.y0 + font_off_y, q.x1 + font_off_x, q.y1 + font_off_y, q.s0, q.t0, q.s1, q.t1, pc.xadvance);
+        }
+    }
+
+    // Cleanup
+    src_tmp_array.clear_destruct();
+
+    ImFontAtlasBuildFinish(atlas);
+    return true;
+}
+
+const ImFontBuilderIO* ImFontAtlasGetBuilderForStbTruetype()
+{
+    static ImFontBuilderIO io;
+    io.FontBuilder_Build = ImFontAtlasBuildWithStbTruetype;
+    return &io;
+}
+
+#endif // IMGUI_ENABLE_STB_TRUETYPE
+
+void ImFontAtlasBuildSetupFont(ImFontAtlas* atlas, ImFont* font, ImFontConfig* font_config, float ascent, float descent)
+{
+    if (!font_config->MergeMode)
+    {
+        font->ClearOutputData();
+        font->FontSize = font_config->SizePixels;
+        font->ConfigData = font_config;
+        font->ConfigDataCount = 0;
+        font->ContainerAtlas = atlas;
+        font->Ascent = ascent;
+        font->Descent = descent;
+    }
+    font->ConfigDataCount++;
+}
+
+void ImFontAtlasBuildPackCustomRects(ImFontAtlas* atlas, void* stbrp_context_opaque)
+{
+    stbrp_context* pack_context = (stbrp_context*)stbrp_context_opaque;
+    IM_ASSERT(pack_context != NULL);
+
+    ImVector<ImFontAtlasCustomRect>& user_rects = atlas->CustomRects;
+    IM_ASSERT(user_rects.Size >= 1); // We expect at least the default custom rects to be registered, else something went wrong.
+
+    ImVector<stbrp_rect> pack_rects;
+    pack_rects.resize(user_rects.Size);
+    memset(pack_rects.Data, 0, (size_t)pack_rects.size_in_bytes());
+    for (int i = 0; i < user_rects.Size; i++)
+    {
+        pack_rects[i].w = user_rects[i].Width;
+        pack_rects[i].h = user_rects[i].Height;
+    }
+    stbrp_pack_rects(pack_context, &pack_rects[0], pack_rects.Size);
+    for (int i = 0; i < pack_rects.Size; i++)
+        if (pack_rects[i].was_packed)
+        {
+            user_rects[i].X = (unsigned short)pack_rects[i].x;
+            user_rects[i].Y = (unsigned short)pack_rects[i].y;
+            IM_ASSERT(pack_rects[i].w == user_rects[i].Width && pack_rects[i].h == user_rects[i].Height);
+            atlas->TexHeight = ImMax(atlas->TexHeight, pack_rects[i].y + pack_rects[i].h);
+        }
+}
+
+void ImFontAtlasBuildRender8bppRectFromString(ImFontAtlas* atlas, int x, int y, int w, int h, const char* in_str, char in_marker_char, unsigned char in_marker_pixel_value)
+{
+    IM_ASSERT(x >= 0 && x + w <= atlas->TexWidth);
+    IM_ASSERT(y >= 0 && y + h <= atlas->TexHeight);
+    unsigned char* out_pixel = atlas->TexPixelsAlpha8 + x + (y * atlas->TexWidth);
+    for (int off_y = 0; off_y < h; off_y++, out_pixel += atlas->TexWidth, in_str += w)
+        for (int off_x = 0; off_x < w; off_x++)
+            out_pixel[off_x] = (in_str[off_x] == in_marker_char) ? in_marker_pixel_value : 0x00;
+}
+
+void ImFontAtlasBuildRender32bppRectFromString(ImFontAtlas* atlas, int x, int y, int w, int h, const char* in_str, char in_marker_char, unsigned int in_marker_pixel_value)
+{
+    IM_ASSERT(x >= 0 && x + w <= atlas->TexWidth);
+    IM_ASSERT(y >= 0 && y + h <= atlas->TexHeight);
+    unsigned int* out_pixel = atlas->TexPixelsRGBA32 + x + (y * atlas->TexWidth);
+    for (int off_y = 0; off_y < h; off_y++, out_pixel += atlas->TexWidth, in_str += w)
+        for (int off_x = 0; off_x < w; off_x++)
+            out_pixel[off_x] = (in_str[off_x] == in_marker_char) ? in_marker_pixel_value : IM_COL32_BLACK_TRANS;
+}
+
+static void ImFontAtlasBuildRenderDefaultTexData(ImFontAtlas* atlas)
+{
+    ImFontAtlasCustomRect* r = atlas->GetCustomRectByIndex(atlas->PackIdMouseCursors);
+    IM_ASSERT(r->IsPacked());
+
+    const int w = atlas->TexWidth;
+    if (!(atlas->Flags & ImFontAtlasFlags_NoMouseCursors))
+    {
+        // Render/copy pixels
+        IM_ASSERT(r->Width == FONT_ATLAS_DEFAULT_TEX_DATA_W * 2 + 1 && r->Height == FONT_ATLAS_DEFAULT_TEX_DATA_H);
+        const int x_for_white = r->X;
+        const int x_for_black = r->X + FONT_ATLAS_DEFAULT_TEX_DATA_W + 1;
+        if (atlas->TexPixelsAlpha8 != NULL)
+        {
+            ImFontAtlasBuildRender8bppRectFromString(atlas, x_for_white, r->Y, FONT_ATLAS_DEFAULT_TEX_DATA_W, FONT_ATLAS_DEFAULT_TEX_DATA_H, FONT_ATLAS_DEFAULT_TEX_DATA_PIXELS, '.', 0xFF);
+            ImFontAtlasBuildRender8bppRectFromString(atlas, x_for_black, r->Y, FONT_ATLAS_DEFAULT_TEX_DATA_W, FONT_ATLAS_DEFAULT_TEX_DATA_H, FONT_ATLAS_DEFAULT_TEX_DATA_PIXELS, 'X', 0xFF);
+        }
+        else
+        {
+            ImFontAtlasBuildRender32bppRectFromString(atlas, x_for_white, r->Y, FONT_ATLAS_DEFAULT_TEX_DATA_W, FONT_ATLAS_DEFAULT_TEX_DATA_H, FONT_ATLAS_DEFAULT_TEX_DATA_PIXELS, '.', IM_COL32_WHITE);
+            ImFontAtlasBuildRender32bppRectFromString(atlas, x_for_black, r->Y, FONT_ATLAS_DEFAULT_TEX_DATA_W, FONT_ATLAS_DEFAULT_TEX_DATA_H, FONT_ATLAS_DEFAULT_TEX_DATA_PIXELS, 'X', IM_COL32_WHITE);
+        }
+    }
+    else
+    {
+        // Render 4 white pixels
+        IM_ASSERT(r->Width == 2 && r->Height == 2);
+        const int offset = (int)r->X + (int)r->Y * w;
+        if (atlas->TexPixelsAlpha8 != NULL)
+        {
+            atlas->TexPixelsAlpha8[offset] = atlas->TexPixelsAlpha8[offset + 1] = atlas->TexPixelsAlpha8[offset + w] = atlas->TexPixelsAlpha8[offset + w + 1] = 0xFF;
+        }
+        else
+        {
+            atlas->TexPixelsRGBA32[offset] = atlas->TexPixelsRGBA32[offset + 1] = atlas->TexPixelsRGBA32[offset + w] = atlas->TexPixelsRGBA32[offset + w + 1] = IM_COL32_WHITE;
+        }
+    }
+    atlas->TexUvWhitePixel = ImVec2((r->X + 0.5f) * atlas->TexUvScale.x, (r->Y + 0.5f) * atlas->TexUvScale.y);
+}
+
+static void ImFontAtlasBuildRenderLinesTexData(ImFontAtlas* atlas)
+{
+    if (atlas->Flags & ImFontAtlasFlags_NoBakedLines)
+        return;
+
+    // This generates a triangular shape in the texture, with the various line widths stacked on top of each other to allow interpolation between them
+    ImFontAtlasCustomRect* r = atlas->GetCustomRectByIndex(atlas->PackIdLines);
+    IM_ASSERT(r->IsPacked());
+    for (unsigned int n = 0; n < IM_DRAWLIST_TEX_LINES_WIDTH_MAX + 1; n++) // +1 because of the zero-width row
+    {
+        // Each line consists of at least two empty pixels at the ends, with a line of solid pixels in the middle
+        unsigned int y = n;
+        unsigned int line_width = n;
+        unsigned int pad_left = (r->Width - line_width) / 2;
+        unsigned int pad_right = r->Width - (pad_left + line_width);
+
+        // Write each slice
+        IM_ASSERT(pad_left + line_width + pad_right == r->Width && y < r->Height); // Make sure we're inside the texture bounds before we start writing pixels
+        if (atlas->TexPixelsAlpha8 != NULL)
+        {
+            unsigned char* write_ptr = &atlas->TexPixelsAlpha8[r->X + ((r->Y + y) * atlas->TexWidth)];
+            for (unsigned int i = 0; i < pad_left; i++)
+                *(write_ptr + i) = 0x00;
+
+            for (unsigned int i = 0; i < line_width; i++)
+                *(write_ptr + pad_left + i) = 0xFF;
+
+            for (unsigned int i = 0; i < pad_right; i++)
+                *(write_ptr + pad_left + line_width + i) = 0x00;
+        }
+        else
+        {
+            unsigned int* write_ptr = &atlas->TexPixelsRGBA32[r->X + ((r->Y + y) * atlas->TexWidth)];
+            for (unsigned int i = 0; i < pad_left; i++)
+                *(write_ptr + i) = IM_COL32(255, 255, 255, 0);
+
+            for (unsigned int i = 0; i < line_width; i++)
+                *(write_ptr + pad_left + i) = IM_COL32_WHITE;
+
+            for (unsigned int i = 0; i < pad_right; i++)
+                *(write_ptr + pad_left + line_width + i) = IM_COL32(255, 255, 255, 0);
+        }
+
+        // Calculate UVs for this line
+        ImVec2 uv0 = ImVec2((float)(r->X + pad_left - 1), (float)(r->Y + y)) * atlas->TexUvScale;
+        ImVec2 uv1 = ImVec2((float)(r->X + pad_left + line_width + 1), (float)(r->Y + y + 1)) * atlas->TexUvScale;
+        float half_v = (uv0.y + uv1.y) * 0.5f; // Calculate a constant V in the middle of the row to avoid sampling artifacts
+        atlas->TexUvLines[n] = ImVec4(uv0.x, half_v, uv1.x, half_v);
+    }
+}
+
+// Note: this is called / shared by both the stb_truetype and the FreeType builder
+void ImFontAtlasBuildInit(ImFontAtlas* atlas)
+{
+    // Register texture region for mouse cursors or standard white pixels
+    if (atlas->PackIdMouseCursors < 0)
+    {
+        if (!(atlas->Flags & ImFontAtlasFlags_NoMouseCursors))
+            atlas->PackIdMouseCursors = atlas->AddCustomRectRegular(FONT_ATLAS_DEFAULT_TEX_DATA_W * 2 + 1, FONT_ATLAS_DEFAULT_TEX_DATA_H);
+        else
+            atlas->PackIdMouseCursors = atlas->AddCustomRectRegular(2, 2);
+    }
+
+    // Register texture region for thick lines
+    // The +2 here is to give space for the end caps, whilst height +1 is to accommodate the fact we have a zero-width row
+    if (atlas->PackIdLines < 0)
+    {
+        if (!(atlas->Flags & ImFontAtlasFlags_NoBakedLines))
+            atlas->PackIdLines = atlas->AddCustomRectRegular(IM_DRAWLIST_TEX_LINES_WIDTH_MAX + 2, IM_DRAWLIST_TEX_LINES_WIDTH_MAX + 1);
+    }
+}
+
+// This is called/shared by both the stb_truetype and the FreeType builder.
+void ImFontAtlasBuildFinish(ImFontAtlas* atlas)
+{
+    // Render into our custom data blocks
+    IM_ASSERT(atlas->TexPixelsAlpha8 != NULL || atlas->TexPixelsRGBA32 != NULL);
+    ImFontAtlasBuildRenderDefaultTexData(atlas);
+    ImFontAtlasBuildRenderLinesTexData(atlas);
+
+    // Register custom rectangle glyphs
+    for (int i = 0; i < atlas->CustomRects.Size; i++)
+    {
+        const ImFontAtlasCustomRect* r = &atlas->CustomRects[i];
+        if (r->Font == NULL || r->GlyphID == 0)
+            continue;
+
+        // Will ignore ImFontConfig settings: GlyphMinAdvanceX, GlyphMinAdvanceY, GlyphExtraSpacing, PixelSnapH
+        IM_ASSERT(r->Font->ContainerAtlas == atlas);
+        ImVec2 uv0, uv1;
+        atlas->CalcCustomRectUV(r, &uv0, &uv1);
+        r->Font->AddGlyph(NULL, (ImWchar)r->GlyphID, r->GlyphOffset.x, r->GlyphOffset.y, r->GlyphOffset.x + r->Width, r->GlyphOffset.y + r->Height, uv0.x, uv0.y, uv1.x, uv1.y, r->GlyphAdvanceX);
+    }
+
+    // Build all fonts lookup tables
+    for (int i = 0; i < atlas->Fonts.Size; i++)
+        if (atlas->Fonts[i]->DirtyLookupTables)
+            atlas->Fonts[i]->BuildLookupTable();
+
+    atlas->TexReady = true;
+}
+
+// Retrieve list of range (2 int per range, values are inclusive)
+const ImWchar*   ImFontAtlas::GetGlyphRangesDefault()
+{
+    static const ImWchar ranges[] =
+    {
+        0x0020, 0x00FF, // Basic Latin + Latin Supplement
+        0,
+    };
+    return &ranges[0];
+}
+
+const ImWchar*  ImFontAtlas::GetGlyphRangesKorean()
+{
+    static const ImWchar ranges[] =
+    {
+        0x0020, 0x00FF, // Basic Latin + Latin Supplement
+        0x3131, 0x3163, // Korean alphabets
+        0xAC00, 0xD7A3, // Korean characters
+        0xFFFD, 0xFFFD, // Invalid
+        0,
+    };
+    return &ranges[0];
+}
+
+const ImWchar*  ImFontAtlas::GetGlyphRangesChineseFull()
+{
+    static const ImWchar ranges[] =
+    {
+        0x0020, 0x00FF, // Basic Latin + Latin Supplement
+        0x2000, 0x206F, // General Punctuation
+        0x3000, 0x30FF, // CJK Symbols and Punctuations, Hiragana, Katakana
+        0x31F0, 0x31FF, // Katakana Phonetic Extensions
+        0xFF00, 0xFFEF, // Half-width characters
+        0xFFFD, 0xFFFD, // Invalid
+        0x4e00, 0x9FAF, // CJK Ideograms
+        0,
+    };
+    return &ranges[0];
+}
+
+static void UnpackAccumulativeOffsetsIntoRanges(int base_codepoint, const short* accumulative_offsets, int accumulative_offsets_count, ImWchar* out_ranges)
+{
+    for (int n = 0; n < accumulative_offsets_count; n++, out_ranges += 2)
+    {
+        out_ranges[0] = out_ranges[1] = (ImWchar)(base_codepoint + accumulative_offsets[n]);
+        base_codepoint += accumulative_offsets[n];
+    }
+    out_ranges[0] = 0;
+}
+
+//-------------------------------------------------------------------------
+// [SECTION] ImFontAtlas glyph ranges helpers
+//-------------------------------------------------------------------------
+
+const ImWchar*  ImFontAtlas::GetGlyphRangesChineseSimplifiedCommon()
+{
+    // Store 2500 regularly used characters for Simplified Chinese.
+    // Sourced from https://zh.wiktionary.org/wiki/%E9%99%84%E5%BD%95:%E7%8E%B0%E4%BB%A3%E6%B1%89%E8%AF%AD%E5%B8%B8%E7%94%A8%E5%AD%97%E8%A1%A8
+    // This table covers 97.97% of all characters used during the month in July, 1987.
+    // You can use ImFontGlyphRangesBuilder to create your own ranges derived from this, by merging existing ranges or adding new characters.
+    // (Stored as accumulative offsets from the initial unicode codepoint 0x4E00. This encoding is designed to helps us compact the source code size.)
+    static const short accumulative_offsets_from_0x4E00[] =
+    {
+        0,1,2,4,1,1,1,1,2,1,3,2,1,2,2,1,1,1,1,1,5,2,1,2,3,3,3,2,2,4,1,1,1,2,1,5,2,3,1,2,1,2,1,1,2,1,1,2,2,1,4,1,1,1,1,5,10,1,2,19,2,1,2,1,2,1,2,1,2,
+        1,5,1,6,3,2,1,2,2,1,1,1,4,8,5,1,1,4,1,1,3,1,2,1,5,1,2,1,1,1,10,1,1,5,2,4,6,1,4,2,2,2,12,2,1,1,6,1,1,1,4,1,1,4,6,5,1,4,2,2,4,10,7,1,1,4,2,4,
+        2,1,4,3,6,10,12,5,7,2,14,2,9,1,1,6,7,10,4,7,13,1,5,4,8,4,1,1,2,28,5,6,1,1,5,2,5,20,2,2,9,8,11,2,9,17,1,8,6,8,27,4,6,9,20,11,27,6,68,2,2,1,1,
+        1,2,1,2,2,7,6,11,3,3,1,1,3,1,2,1,1,1,1,1,3,1,1,8,3,4,1,5,7,2,1,4,4,8,4,2,1,2,1,1,4,5,6,3,6,2,12,3,1,3,9,2,4,3,4,1,5,3,3,1,3,7,1,5,1,1,1,1,2,
+        3,4,5,2,3,2,6,1,1,2,1,7,1,7,3,4,5,15,2,2,1,5,3,22,19,2,1,1,1,1,2,5,1,1,1,6,1,1,12,8,2,9,18,22,4,1,1,5,1,16,1,2,7,10,15,1,1,6,2,4,1,2,4,1,6,
+        1,1,3,2,4,1,6,4,5,1,2,1,1,2,1,10,3,1,3,2,1,9,3,2,5,7,2,19,4,3,6,1,1,1,1,1,4,3,2,1,1,1,2,5,3,1,1,1,2,2,1,1,2,1,1,2,1,3,1,1,1,3,7,1,4,1,1,2,1,
+        1,2,1,2,4,4,3,8,1,1,1,2,1,3,5,1,3,1,3,4,6,2,2,14,4,6,6,11,9,1,15,3,1,28,5,2,5,5,3,1,3,4,5,4,6,14,3,2,3,5,21,2,7,20,10,1,2,19,2,4,28,28,2,3,
+        2,1,14,4,1,26,28,42,12,40,3,52,79,5,14,17,3,2,2,11,3,4,6,3,1,8,2,23,4,5,8,10,4,2,7,3,5,1,1,6,3,1,2,2,2,5,28,1,1,7,7,20,5,3,29,3,17,26,1,8,4,
+        27,3,6,11,23,5,3,4,6,13,24,16,6,5,10,25,35,7,3,2,3,3,14,3,6,2,6,1,4,2,3,8,2,1,1,3,3,3,4,1,1,13,2,2,4,5,2,1,14,14,1,2,2,1,4,5,2,3,1,14,3,12,
+        3,17,2,16,5,1,2,1,8,9,3,19,4,2,2,4,17,25,21,20,28,75,1,10,29,103,4,1,2,1,1,4,2,4,1,2,3,24,2,2,2,1,1,2,1,3,8,1,1,1,2,1,1,3,1,1,1,6,1,5,3,1,1,
+        1,3,4,1,1,5,2,1,5,6,13,9,16,1,1,1,1,3,2,3,2,4,5,2,5,2,2,3,7,13,7,2,2,1,1,1,1,2,3,3,2,1,6,4,9,2,1,14,2,14,2,1,18,3,4,14,4,11,41,15,23,15,23,
+        176,1,3,4,1,1,1,1,5,3,1,2,3,7,3,1,1,2,1,2,4,4,6,2,4,1,9,7,1,10,5,8,16,29,1,1,2,2,3,1,3,5,2,4,5,4,1,1,2,2,3,3,7,1,6,10,1,17,1,44,4,6,2,1,1,6,
+        5,4,2,10,1,6,9,2,8,1,24,1,2,13,7,8,8,2,1,4,1,3,1,3,3,5,2,5,10,9,4,9,12,2,1,6,1,10,1,1,7,7,4,10,8,3,1,13,4,3,1,6,1,3,5,2,1,2,17,16,5,2,16,6,
+        1,4,2,1,3,3,6,8,5,11,11,1,3,3,2,4,6,10,9,5,7,4,7,4,7,1,1,4,2,1,3,6,8,7,1,6,11,5,5,3,24,9,4,2,7,13,5,1,8,82,16,61,1,1,1,4,2,2,16,10,3,8,1,1,
+        6,4,2,1,3,1,1,1,4,3,8,4,2,2,1,1,1,1,1,6,3,5,1,1,4,6,9,2,1,1,1,2,1,7,2,1,6,1,5,4,4,3,1,8,1,3,3,1,3,2,2,2,2,3,1,6,1,2,1,2,1,3,7,1,8,2,1,2,1,5,
+        2,5,3,5,10,1,2,1,1,3,2,5,11,3,9,3,5,1,1,5,9,1,2,1,5,7,9,9,8,1,3,3,3,6,8,2,3,2,1,1,32,6,1,2,15,9,3,7,13,1,3,10,13,2,14,1,13,10,2,1,3,10,4,15,
+        2,15,15,10,1,3,9,6,9,32,25,26,47,7,3,2,3,1,6,3,4,3,2,8,5,4,1,9,4,2,2,19,10,6,2,3,8,1,2,2,4,2,1,9,4,4,4,6,4,8,9,2,3,1,1,1,1,3,5,5,1,3,8,4,6,
+        2,1,4,12,1,5,3,7,13,2,5,8,1,6,1,2,5,14,6,1,5,2,4,8,15,5,1,23,6,62,2,10,1,1,8,1,2,2,10,4,2,2,9,2,1,1,3,2,3,1,5,3,3,2,1,3,8,1,1,1,11,3,1,1,4,
+        3,7,1,14,1,2,3,12,5,2,5,1,6,7,5,7,14,11,1,3,1,8,9,12,2,1,11,8,4,4,2,6,10,9,13,1,1,3,1,5,1,3,2,4,4,1,18,2,3,14,11,4,29,4,2,7,1,3,13,9,2,2,5,
+        3,5,20,7,16,8,5,72,34,6,4,22,12,12,28,45,36,9,7,39,9,191,1,1,1,4,11,8,4,9,2,3,22,1,1,1,1,4,17,1,7,7,1,11,31,10,2,4,8,2,3,2,1,4,2,16,4,32,2,
+        3,19,13,4,9,1,5,2,14,8,1,1,3,6,19,6,5,1,16,6,2,10,8,5,1,2,3,1,5,5,1,11,6,6,1,3,3,2,6,3,8,1,1,4,10,7,5,7,7,5,8,9,2,1,3,4,1,1,3,1,3,3,2,6,16,
+        1,4,6,3,1,10,6,1,3,15,2,9,2,10,25,13,9,16,6,2,2,10,11,4,3,9,1,2,6,6,5,4,30,40,1,10,7,12,14,33,6,3,6,7,3,1,3,1,11,14,4,9,5,12,11,49,18,51,31,
+        140,31,2,2,1,5,1,8,1,10,1,4,4,3,24,1,10,1,3,6,6,16,3,4,5,2,1,4,2,57,10,6,22,2,22,3,7,22,6,10,11,36,18,16,33,36,2,5,5,1,1,1,4,10,1,4,13,2,7,
+        5,2,9,3,4,1,7,43,3,7,3,9,14,7,9,1,11,1,1,3,7,4,18,13,1,14,1,3,6,10,73,2,2,30,6,1,11,18,19,13,22,3,46,42,37,89,7,3,16,34,2,2,3,9,1,7,1,1,1,2,
+        2,4,10,7,3,10,3,9,5,28,9,2,6,13,7,3,1,3,10,2,7,2,11,3,6,21,54,85,2,1,4,2,2,1,39,3,21,2,2,5,1,1,1,4,1,1,3,4,15,1,3,2,4,4,2,3,8,2,20,1,8,7,13,
+        4,1,26,6,2,9,34,4,21,52,10,4,4,1,5,12,2,11,1,7,2,30,12,44,2,30,1,1,3,6,16,9,17,39,82,2,2,24,7,1,7,3,16,9,14,44,2,1,2,1,2,3,5,2,4,1,6,7,5,3,
+        2,6,1,11,5,11,2,1,18,19,8,1,3,24,29,2,1,3,5,2,2,1,13,6,5,1,46,11,3,5,1,1,5,8,2,10,6,12,6,3,7,11,2,4,16,13,2,5,1,1,2,2,5,2,28,5,2,23,10,8,4,
+        4,22,39,95,38,8,14,9,5,1,13,5,4,3,13,12,11,1,9,1,27,37,2,5,4,4,63,211,95,2,2,2,1,3,5,2,1,1,2,2,1,1,1,3,2,4,1,2,1,1,5,2,2,1,1,2,3,1,3,1,1,1,
+        3,1,4,2,1,3,6,1,1,3,7,15,5,3,2,5,3,9,11,4,2,22,1,6,3,8,7,1,4,28,4,16,3,3,25,4,4,27,27,1,4,1,2,2,7,1,3,5,2,28,8,2,14,1,8,6,16,25,3,3,3,14,3,
+        3,1,1,2,1,4,6,3,8,4,1,1,1,2,3,6,10,6,2,3,18,3,2,5,5,4,3,1,5,2,5,4,23,7,6,12,6,4,17,11,9,5,1,1,10,5,12,1,1,11,26,33,7,3,6,1,17,7,1,5,12,1,11,
+        2,4,1,8,14,17,23,1,2,1,7,8,16,11,9,6,5,2,6,4,16,2,8,14,1,11,8,9,1,1,1,9,25,4,11,19,7,2,15,2,12,8,52,7,5,19,2,16,4,36,8,1,16,8,24,26,4,6,2,9,
+        5,4,36,3,28,12,25,15,37,27,17,12,59,38,5,32,127,1,2,9,17,14,4,1,2,1,1,8,11,50,4,14,2,19,16,4,17,5,4,5,26,12,45,2,23,45,104,30,12,8,3,10,2,2,
+        3,3,1,4,20,7,2,9,6,15,2,20,1,3,16,4,11,15,6,134,2,5,59,1,2,2,2,1,9,17,3,26,137,10,211,59,1,2,4,1,4,1,1,1,2,6,2,3,1,1,2,3,2,3,1,3,4,4,2,3,3,
+        1,4,3,1,7,2,2,3,1,2,1,3,3,3,2,2,3,2,1,3,14,6,1,3,2,9,6,15,27,9,34,145,1,1,2,1,1,1,1,2,1,1,1,1,2,2,2,3,1,2,1,1,1,2,3,5,8,3,5,2,4,1,3,2,2,2,12,
+        4,1,1,1,10,4,5,1,20,4,16,1,15,9,5,12,2,9,2,5,4,2,26,19,7,1,26,4,30,12,15,42,1,6,8,172,1,1,4,2,1,1,11,2,2,4,2,1,2,1,10,8,1,2,1,4,5,1,2,5,1,8,
+        4,1,3,4,2,1,6,2,1,3,4,1,2,1,1,1,1,12,5,7,2,4,3,1,1,1,3,3,6,1,2,2,3,3,3,2,1,2,12,14,11,6,6,4,12,2,8,1,7,10,1,35,7,4,13,15,4,3,23,21,28,52,5,
+        26,5,6,1,7,10,2,7,53,3,2,1,1,1,2,163,532,1,10,11,1,3,3,4,8,2,8,6,2,2,23,22,4,2,2,4,2,1,3,1,3,3,5,9,8,2,1,2,8,1,10,2,12,21,20,15,105,2,3,1,1,
+        3,2,3,1,1,2,5,1,4,15,11,19,1,1,1,1,5,4,5,1,1,2,5,3,5,12,1,2,5,1,11,1,1,15,9,1,4,5,3,26,8,2,1,3,1,1,15,19,2,12,1,2,5,2,7,2,19,2,20,6,26,7,5,
+        2,2,7,34,21,13,70,2,128,1,1,2,1,1,2,1,1,3,2,2,2,15,1,4,1,3,4,42,10,6,1,49,85,8,1,2,1,1,4,4,2,3,6,1,5,7,4,3,211,4,1,2,1,2,5,1,2,4,2,2,6,5,6,
+        10,3,4,48,100,6,2,16,296,5,27,387,2,2,3,7,16,8,5,38,15,39,21,9,10,3,7,59,13,27,21,47,5,21,6
+    };
+    static ImWchar base_ranges[] = // not zero-terminated
+    {
+        0x0020, 0x00FF, // Basic Latin + Latin Supplement
+        0x2000, 0x206F, // General Punctuation
+        0x3000, 0x30FF, // CJK Symbols and Punctuations, Hiragana, Katakana
+        0x31F0, 0x31FF, // Katakana Phonetic Extensions
+        0xFF00, 0xFFEF, // Half-width characters
+        0xFFFD, 0xFFFD  // Invalid
+    };
+    static ImWchar full_ranges[IM_ARRAYSIZE(base_ranges) + IM_ARRAYSIZE(accumulative_offsets_from_0x4E00) * 2 + 1] = { 0 };
+    if (!full_ranges[0])
+    {
+        memcpy(full_ranges, base_ranges, sizeof(base_ranges));
+        UnpackAccumulativeOffsetsIntoRanges(0x4E00, accumulative_offsets_from_0x4E00, IM_ARRAYSIZE(accumulative_offsets_from_0x4E00), full_ranges + IM_ARRAYSIZE(base_ranges));
+    }
+    return &full_ranges[0];
+}
+
+const ImWchar*  ImFontAtlas::GetGlyphRangesJapanese()
+{
+    // 2999 ideograms code points for Japanese
+    // - 2136 Joyo (meaning "for regular use" or "for common use") Kanji code points
+    // - 863 Jinmeiyo (meaning "for personal name") Kanji code points
+    // - Sourced from the character information database of the Information-technology Promotion Agency, Japan
+    //   - https://mojikiban.ipa.go.jp/mji/
+    //   - Available under the terms of the Creative Commons Attribution-ShareAlike 2.1 Japan (CC BY-SA 2.1 JP).
+    //     - https://creativecommons.org/licenses/by-sa/2.1/jp/deed.en
+    //     - https://creativecommons.org/licenses/by-sa/2.1/jp/legalcode
+    //   - You can generate this code by the script at:
+    //     - https://github.com/vaiorabbit/everyday_use_kanji
+    // - References:
+    //   - List of Joyo Kanji
+    //     - (Official list by the Agency for Cultural Affairs) https://www.bunka.go.jp/kokugo_nihongo/sisaku/joho/joho/kakuki/14/tosin02/index.html
+    //     - (Wikipedia) https://en.wikipedia.org/wiki/List_of_j%C5%8Dy%C5%8D_kanji
+    //   - List of Jinmeiyo Kanji
+    //     - (Official list by the Ministry of Justice) http://www.moj.go.jp/MINJI/minji86.html
+    //     - (Wikipedia) https://en.wikipedia.org/wiki/Jinmeiy%C5%8D_kanji
+    // - Missing 1 Joyo Kanji: U+20B9F (Kun'yomi: Shikaru, On'yomi: Shitsu,shichi), see https://github.com/ocornut/imgui/pull/3627 for details.
+    // You can use ImFontGlyphRangesBuilder to create your own ranges derived from this, by merging existing ranges or adding new characters.
+    // (Stored as accumulative offsets from the initial unicode codepoint 0x4E00. This encoding is designed to helps us compact the source code size.)
+    static const short accumulative_offsets_from_0x4E00[] =
+    {
+        0,1,2,4,1,1,1,1,2,1,3,3,2,2,1,5,3,5,7,5,6,1,2,1,7,2,6,3,1,8,1,1,4,1,1,18,2,11,2,6,2,1,2,1,5,1,2,1,3,1,2,1,2,3,3,1,1,2,3,1,1,1,12,7,9,1,4,5,1,
+        1,2,1,10,1,1,9,2,2,4,5,6,9,3,1,1,1,1,9,3,18,5,2,2,2,2,1,6,3,7,1,1,1,1,2,2,4,2,1,23,2,10,4,3,5,2,4,10,2,4,13,1,6,1,9,3,1,1,6,6,7,6,3,1,2,11,3,
+        2,2,3,2,15,2,2,5,4,3,6,4,1,2,5,2,12,16,6,13,9,13,2,1,1,7,16,4,7,1,19,1,5,1,2,2,7,7,8,2,6,5,4,9,18,7,4,5,9,13,11,8,15,2,1,1,1,2,1,2,2,1,2,2,8,
+        2,9,3,3,1,1,4,4,1,1,1,4,9,1,4,3,5,5,2,7,5,3,4,8,2,1,13,2,3,3,1,14,1,1,4,5,1,3,6,1,5,2,1,1,3,3,3,3,1,1,2,7,6,6,7,1,4,7,6,1,1,1,1,1,12,3,3,9,5,
+        2,6,1,5,6,1,2,3,18,2,4,14,4,1,3,6,1,1,6,3,5,5,3,2,2,2,2,12,3,1,4,2,3,2,3,11,1,7,4,1,2,1,3,17,1,9,1,24,1,1,4,2,2,4,1,2,7,1,1,1,3,1,2,2,4,15,1,
+        1,2,1,1,2,1,5,2,5,20,2,5,9,1,10,8,7,6,1,1,1,1,1,1,6,2,1,2,8,1,1,1,1,5,1,1,3,1,1,1,1,3,1,1,12,4,1,3,1,1,1,1,1,10,3,1,7,5,13,1,2,3,4,6,1,1,30,
+        2,9,9,1,15,38,11,3,1,8,24,7,1,9,8,10,2,1,9,31,2,13,6,2,9,4,49,5,2,15,2,1,10,2,1,1,1,2,2,6,15,30,35,3,14,18,8,1,16,10,28,12,19,45,38,1,3,2,3,
+        13,2,1,7,3,6,5,3,4,3,1,5,7,8,1,5,3,18,5,3,6,1,21,4,24,9,24,40,3,14,3,21,3,2,1,2,4,2,3,1,15,15,6,5,1,1,3,1,5,6,1,9,7,3,3,2,1,4,3,8,21,5,16,4,
+        5,2,10,11,11,3,6,3,2,9,3,6,13,1,2,1,1,1,1,11,12,6,6,1,4,2,6,5,2,1,1,3,3,6,13,3,1,1,5,1,2,3,3,14,2,1,2,2,2,5,1,9,5,1,1,6,12,3,12,3,4,13,2,14,
+        2,8,1,17,5,1,16,4,2,2,21,8,9,6,23,20,12,25,19,9,38,8,3,21,40,25,33,13,4,3,1,4,1,2,4,1,2,5,26,2,1,1,2,1,3,6,2,1,1,1,1,1,1,2,3,1,1,1,9,2,3,1,1,
+        1,3,6,3,2,1,1,6,6,1,8,2,2,2,1,4,1,2,3,2,7,3,2,4,1,2,1,2,2,1,1,1,1,1,3,1,2,5,4,10,9,4,9,1,1,1,1,1,1,5,3,2,1,6,4,9,6,1,10,2,31,17,8,3,7,5,40,1,
+        7,7,1,6,5,2,10,7,8,4,15,39,25,6,28,47,18,10,7,1,3,1,1,2,1,1,1,3,3,3,1,1,1,3,4,2,1,4,1,3,6,10,7,8,6,2,2,1,3,3,2,5,8,7,9,12,2,15,1,1,4,1,2,1,1,
+        1,3,2,1,3,3,5,6,2,3,2,10,1,4,2,8,1,1,1,11,6,1,21,4,16,3,1,3,1,4,2,3,6,5,1,3,1,1,3,3,4,6,1,1,10,4,2,7,10,4,7,4,2,9,4,3,1,1,1,4,1,8,3,4,1,3,1,
+        6,1,4,2,1,4,7,2,1,8,1,4,5,1,1,2,2,4,6,2,7,1,10,1,1,3,4,11,10,8,21,4,6,1,3,5,2,1,2,28,5,5,2,3,13,1,2,3,1,4,2,1,5,20,3,8,11,1,3,3,3,1,8,10,9,2,
+        10,9,2,3,1,1,2,4,1,8,3,6,1,7,8,6,11,1,4,29,8,4,3,1,2,7,13,1,4,1,6,2,6,12,12,2,20,3,2,3,6,4,8,9,2,7,34,5,1,18,6,1,1,4,4,5,7,9,1,2,2,4,3,4,1,7,
+        2,2,2,6,2,3,25,5,3,6,1,4,6,7,4,2,1,4,2,13,6,4,4,3,1,5,3,4,4,3,2,1,1,4,1,2,1,1,3,1,11,1,6,3,1,7,3,6,2,8,8,6,9,3,4,11,3,2,10,12,2,5,11,1,6,4,5,
+        3,1,8,5,4,6,6,3,5,1,1,3,2,1,2,2,6,17,12,1,10,1,6,12,1,6,6,19,9,6,16,1,13,4,4,15,7,17,6,11,9,15,12,6,7,2,1,2,2,15,9,3,21,4,6,49,18,7,3,2,3,1,
+        6,8,2,2,6,2,9,1,3,6,4,4,1,2,16,2,5,2,1,6,2,3,5,3,1,2,5,1,2,1,9,3,1,8,6,4,8,11,3,1,1,1,1,3,1,13,8,4,1,3,2,2,1,4,1,11,1,5,2,1,5,2,5,8,6,1,1,7,
+        4,3,8,3,2,7,2,1,5,1,5,2,4,7,6,2,8,5,1,11,4,5,3,6,18,1,2,13,3,3,1,21,1,1,4,1,4,1,1,1,8,1,2,2,7,1,2,4,2,2,9,2,1,1,1,4,3,6,3,12,5,1,1,1,5,6,3,2,
+        4,8,2,2,4,2,7,1,8,9,5,2,3,2,1,3,2,13,7,14,6,5,1,1,2,1,4,2,23,2,1,1,6,3,1,4,1,15,3,1,7,3,9,14,1,3,1,4,1,1,5,8,1,3,8,3,8,15,11,4,14,4,4,2,5,5,
+        1,7,1,6,14,7,7,8,5,15,4,8,6,5,6,2,1,13,1,20,15,11,9,2,5,6,2,11,2,6,2,5,1,5,8,4,13,19,25,4,1,1,11,1,34,2,5,9,14,6,2,2,6,1,1,14,1,3,14,13,1,6,
+        12,21,14,14,6,32,17,8,32,9,28,1,2,4,11,8,3,1,14,2,5,15,1,1,1,1,3,6,4,1,3,4,11,3,1,1,11,30,1,5,1,4,1,5,8,1,1,3,2,4,3,17,35,2,6,12,17,3,1,6,2,
+        1,1,12,2,7,3,3,2,1,16,2,8,3,6,5,4,7,3,3,8,1,9,8,5,1,2,1,3,2,8,1,2,9,12,1,1,2,3,8,3,24,12,4,3,7,5,8,3,3,3,3,3,3,1,23,10,3,1,2,2,6,3,1,16,1,16,
+        22,3,10,4,11,6,9,7,7,3,6,2,2,2,4,10,2,1,1,2,8,7,1,6,4,1,3,3,3,5,10,12,12,2,3,12,8,15,1,1,16,6,6,1,5,9,11,4,11,4,2,6,12,1,17,5,13,1,4,9,5,1,11,
+        2,1,8,1,5,7,28,8,3,5,10,2,17,3,38,22,1,2,18,12,10,4,38,18,1,4,44,19,4,1,8,4,1,12,1,4,31,12,1,14,7,75,7,5,10,6,6,13,3,2,11,11,3,2,5,28,15,6,18,
+        18,5,6,4,3,16,1,7,18,7,36,3,5,3,1,7,1,9,1,10,7,2,4,2,6,2,9,7,4,3,32,12,3,7,10,2,23,16,3,1,12,3,31,4,11,1,3,8,9,5,1,30,15,6,12,3,2,2,11,19,9,
+        14,2,6,2,3,19,13,17,5,3,3,25,3,14,1,1,1,36,1,3,2,19,3,13,36,9,13,31,6,4,16,34,2,5,4,2,3,3,5,1,1,1,4,3,1,17,3,2,3,5,3,1,3,2,3,5,6,3,12,11,1,3,
+        1,2,26,7,12,7,2,14,3,3,7,7,11,25,25,28,16,4,36,1,2,1,6,2,1,9,3,27,17,4,3,4,13,4,1,3,2,2,1,10,4,2,4,6,3,8,2,1,18,1,1,24,2,2,4,33,2,3,63,7,1,6,
+        40,7,3,4,4,2,4,15,18,1,16,1,1,11,2,41,14,1,3,18,13,3,2,4,16,2,17,7,15,24,7,18,13,44,2,2,3,6,1,1,7,5,1,7,1,4,3,3,5,10,8,2,3,1,8,1,1,27,4,2,1,
+        12,1,2,1,10,6,1,6,7,5,2,3,7,11,5,11,3,6,6,2,3,15,4,9,1,1,2,1,2,11,2,8,12,8,5,4,2,3,1,5,2,2,1,14,1,12,11,4,1,11,17,17,4,3,2,5,5,7,3,1,5,9,9,8,
+        2,5,6,6,13,13,2,1,2,6,1,2,2,49,4,9,1,2,10,16,7,8,4,3,2,23,4,58,3,29,1,14,19,19,11,11,2,7,5,1,3,4,6,2,18,5,12,12,17,17,3,3,2,4,1,6,2,3,4,3,1,
+        1,1,1,5,1,1,9,1,3,1,3,6,1,8,1,1,2,6,4,14,3,1,4,11,4,1,3,32,1,2,4,13,4,1,2,4,2,1,3,1,11,1,4,2,1,4,4,6,3,5,1,6,5,7,6,3,23,3,5,3,5,3,3,13,3,9,10,
+        1,12,10,2,3,18,13,7,160,52,4,2,2,3,2,14,5,4,12,4,6,4,1,20,4,11,6,2,12,27,1,4,1,2,2,7,4,5,2,28,3,7,25,8,3,19,3,6,10,2,2,1,10,2,5,4,1,3,4,1,5,
+        3,2,6,9,3,6,2,16,3,3,16,4,5,5,3,2,1,2,16,15,8,2,6,21,2,4,1,22,5,8,1,1,21,11,2,1,11,11,19,13,12,4,2,3,2,3,6,1,8,11,1,4,2,9,5,2,1,11,2,9,1,1,2,
+        14,31,9,3,4,21,14,4,8,1,7,2,2,2,5,1,4,20,3,3,4,10,1,11,9,8,2,1,4,5,14,12,14,2,17,9,6,31,4,14,1,20,13,26,5,2,7,3,6,13,2,4,2,19,6,2,2,18,9,3,5,
+        12,12,14,4,6,2,3,6,9,5,22,4,5,25,6,4,8,5,2,6,27,2,35,2,16,3,7,8,8,6,6,5,9,17,2,20,6,19,2,13,3,1,1,1,4,17,12,2,14,7,1,4,18,12,38,33,2,10,1,1,
+        2,13,14,17,11,50,6,33,20,26,74,16,23,45,50,13,38,33,6,6,7,4,4,2,1,3,2,5,8,7,8,9,3,11,21,9,13,1,3,10,6,7,1,2,2,18,5,5,1,9,9,2,68,9,19,13,2,5,
+        1,4,4,7,4,13,3,9,10,21,17,3,26,2,1,5,2,4,5,4,1,7,4,7,3,4,2,1,6,1,1,20,4,1,9,2,2,1,3,3,2,3,2,1,1,1,20,2,3,1,6,2,3,6,2,4,8,1,3,2,10,3,5,3,4,4,
+        3,4,16,1,6,1,10,2,4,2,1,1,2,10,11,2,2,3,1,24,31,4,10,10,2,5,12,16,164,15,4,16,7,9,15,19,17,1,2,1,1,5,1,1,1,1,1,3,1,4,3,1,3,1,3,1,2,1,1,3,3,7,
+        2,8,1,2,2,2,1,3,4,3,7,8,12,92,2,10,3,1,3,14,5,25,16,42,4,7,7,4,2,21,5,27,26,27,21,25,30,31,2,1,5,13,3,22,5,6,6,11,9,12,1,5,9,7,5,5,22,60,3,5,
+        13,1,1,8,1,1,3,3,2,1,9,3,3,18,4,1,2,3,7,6,3,1,2,3,9,1,3,1,3,2,1,3,1,1,1,2,1,11,3,1,6,9,1,3,2,3,1,2,1,5,1,1,4,3,4,1,2,2,4,4,1,7,2,1,2,2,3,5,13,
+        18,3,4,14,9,9,4,16,3,7,5,8,2,6,48,28,3,1,1,4,2,14,8,2,9,2,1,15,2,4,3,2,10,16,12,8,7,1,1,3,1,1,1,2,7,4,1,6,4,38,39,16,23,7,15,15,3,2,12,7,21,
+        37,27,6,5,4,8,2,10,8,8,6,5,1,2,1,3,24,1,16,17,9,23,10,17,6,1,51,55,44,13,294,9,3,6,2,4,2,2,15,1,1,1,13,21,17,68,14,8,9,4,1,4,9,3,11,7,1,1,1,
+        5,6,3,2,1,1,1,2,3,8,1,2,2,4,1,5,5,2,1,4,3,7,13,4,1,4,1,3,1,1,1,5,5,10,1,6,1,5,2,1,5,2,4,1,4,5,7,3,18,2,9,11,32,4,3,3,2,4,7,11,16,9,11,8,13,38,
+        32,8,4,2,1,1,2,1,2,4,4,1,1,1,4,1,21,3,11,1,16,1,1,6,1,3,2,4,9,8,57,7,44,1,3,3,13,3,10,1,1,7,5,2,7,21,47,63,3,15,4,7,1,16,1,1,2,8,2,3,42,15,4,
+        1,29,7,22,10,3,78,16,12,20,18,4,67,11,5,1,3,15,6,21,31,32,27,18,13,71,35,5,142,4,10,1,2,50,19,33,16,35,37,16,19,27,7,1,133,19,1,4,8,7,20,1,4,
+        4,1,10,3,1,6,1,2,51,5,40,15,24,43,22928,11,1,13,154,70,3,1,1,7,4,10,1,2,1,1,2,1,2,1,2,2,1,1,2,1,1,1,1,1,2,1,1,1,1,1,1,1,1,1,1,1,1,1,2,1,1,1,
+        3,2,1,1,1,1,2,1,1,
+    };
+    static ImWchar base_ranges[] = // not zero-terminated
+    {
+        0x0020, 0x00FF, // Basic Latin + Latin Supplement
+        0x3000, 0x30FF, // CJK Symbols and Punctuations, Hiragana, Katakana
+        0x31F0, 0x31FF, // Katakana Phonetic Extensions
+        0xFF00, 0xFFEF, // Half-width characters
+        0xFFFD, 0xFFFD  // Invalid
+    };
+    static ImWchar full_ranges[IM_ARRAYSIZE(base_ranges) + IM_ARRAYSIZE(accumulative_offsets_from_0x4E00)*2 + 1] = { 0 };
+    if (!full_ranges[0])
+    {
+        memcpy(full_ranges, base_ranges, sizeof(base_ranges));
+        UnpackAccumulativeOffsetsIntoRanges(0x4E00, accumulative_offsets_from_0x4E00, IM_ARRAYSIZE(accumulative_offsets_from_0x4E00), full_ranges + IM_ARRAYSIZE(base_ranges));
+    }
+    return &full_ranges[0];
+}
+
+const ImWchar*  ImFontAtlas::GetGlyphRangesCyrillic()
+{
+    static const ImWchar ranges[] =
+    {
+        0x0020, 0x00FF, // Basic Latin + Latin Supplement
+        0x0400, 0x052F, // Cyrillic + Cyrillic Supplement
+        0x2DE0, 0x2DFF, // Cyrillic Extended-A
+        0xA640, 0xA69F, // Cyrillic Extended-B
+        0,
+    };
+    return &ranges[0];
+}
+
+const ImWchar*  ImFontAtlas::GetGlyphRangesThai()
+{
+    static const ImWchar ranges[] =
+    {
+        0x0020, 0x00FF, // Basic Latin
+        0x2010, 0x205E, // Punctuations
+        0x0E00, 0x0E7F, // Thai
+        0,
+    };
+    return &ranges[0];
+}
+
+const ImWchar*  ImFontAtlas::GetGlyphRangesVietnamese()
+{
+    static const ImWchar ranges[] =
+    {
+        0x0020, 0x00FF, // Basic Latin
+        0x0102, 0x0103,
+        0x0110, 0x0111,
+        0x0128, 0x0129,
+        0x0168, 0x0169,
+        0x01A0, 0x01A1,
+        0x01AF, 0x01B0,
+        0x1EA0, 0x1EF9,
+        0,
+    };
+    return &ranges[0];
+}
+
+//-----------------------------------------------------------------------------
+// [SECTION] ImFontGlyphRangesBuilder
+//-----------------------------------------------------------------------------
+
+void ImFontGlyphRangesBuilder::AddText(const char* text, const char* text_end)
+{
+    while (text_end ? (text < text_end) : *text)
+    {
+        unsigned int c = 0;
+        int c_len = ImTextCharFromUtf8(&c, text, text_end);
+        text += c_len;
+        if (c_len == 0)
+            break;
+        AddChar((ImWchar)c);
+    }
+}
+
+void ImFontGlyphRangesBuilder::AddRanges(const ImWchar* ranges)
+{
+    for (; ranges[0]; ranges += 2)
+        for (unsigned int c = ranges[0]; c <= ranges[1] && c <= IM_UNICODE_CODEPOINT_MAX; c++) //-V560
+            AddChar((ImWchar)c);
+}
+
+void ImFontGlyphRangesBuilder::BuildRanges(ImVector<ImWchar>* out_ranges)
+{
+    const int max_codepoint = IM_UNICODE_CODEPOINT_MAX;
+    for (int n = 0; n <= max_codepoint; n++)
+        if (GetBit(n))
+        {
+            out_ranges->push_back((ImWchar)n);
+            while (n < max_codepoint && GetBit(n + 1))
+                n++;
+            out_ranges->push_back((ImWchar)n);
+        }
+    out_ranges->push_back(0);
+}
+
+//-----------------------------------------------------------------------------
+// [SECTION] ImFont
+//-----------------------------------------------------------------------------
+
+ImFont::ImFont()
+{
+    FontSize = 0.0f;
+    FallbackAdvanceX = 0.0f;
+    FallbackChar = (ImWchar)-1;
+    EllipsisChar = (ImWchar)-1;
+    DotChar = (ImWchar)-1;
+    FallbackGlyph = NULL;
+    ContainerAtlas = NULL;
+    ConfigData = NULL;
+    ConfigDataCount = 0;
+    DirtyLookupTables = false;
+    Scale = 1.0f;
+    Ascent = Descent = 0.0f;
+    MetricsTotalSurface = 0;
+    memset(Used4kPagesMap, 0, sizeof(Used4kPagesMap));
+}
+
+ImFont::~ImFont()
+{
+    ClearOutputData();
+}
+
+void    ImFont::ClearOutputData()
+{
+    FontSize = 0.0f;
+    FallbackAdvanceX = 0.0f;
+    Glyphs.clear();
+    IndexAdvanceX.clear();
+    IndexLookup.clear();
+    FallbackGlyph = NULL;
+    ContainerAtlas = NULL;
+    DirtyLookupTables = true;
+    Ascent = Descent = 0.0f;
+    MetricsTotalSurface = 0;
+}
+
+static ImWchar FindFirstExistingGlyph(ImFont* font, const ImWchar* candidate_chars, int candidate_chars_count)
+{
+    for (int n = 0; n < candidate_chars_count; n++)
+        if (font->FindGlyphNoFallback(candidate_chars[n]) != NULL)
+            return candidate_chars[n];
+    return (ImWchar)-1;
+}
+
+void ImFont::BuildLookupTable()
+{
+    int max_codepoint = 0;
+    for (int i = 0; i != Glyphs.Size; i++)
+        max_codepoint = ImMax(max_codepoint, (int)Glyphs[i].Codepoint);
+
+    // Build lookup table
+    IM_ASSERT(Glyphs.Size < 0xFFFF); // -1 is reserved
+    IndexAdvanceX.clear();
+    IndexLookup.clear();
+    DirtyLookupTables = false;
+    memset(Used4kPagesMap, 0, sizeof(Used4kPagesMap));
+    GrowIndex(max_codepoint + 1);
+    for (int i = 0; i < Glyphs.Size; i++)
+    {
+        int codepoint = (int)Glyphs[i].Codepoint;
+        IndexAdvanceX[codepoint] = Glyphs[i].AdvanceX;
+        IndexLookup[codepoint] = (ImWchar)i;
+
+        // Mark 4K page as used
+        const int page_n = codepoint / 4096;
+        Used4kPagesMap[page_n >> 3] |= 1 << (page_n & 7);
+    }
+
+    // Create a glyph to handle TAB
+    // FIXME: Needs proper TAB handling but it needs to be contextualized (or we could arbitrary say that each string starts at "column 0" ?)
+    if (FindGlyph((ImWchar)' '))
+    {
+        if (Glyphs.back().Codepoint != '\t')   // So we can call this function multiple times (FIXME: Flaky)
+            Glyphs.resize(Glyphs.Size + 1);
+        ImFontGlyph& tab_glyph = Glyphs.back();
+        tab_glyph = *FindGlyph((ImWchar)' ');
+        tab_glyph.Codepoint = '\t';
+        tab_glyph.AdvanceX *= IM_TABSIZE;
+        IndexAdvanceX[(int)tab_glyph.Codepoint] = (float)tab_glyph.AdvanceX;
+        IndexLookup[(int)tab_glyph.Codepoint] = (ImWchar)(Glyphs.Size - 1);
+    }
+
+    // Mark special glyphs as not visible (note that AddGlyph already mark as non-visible glyphs with zero-size polygons)
+    SetGlyphVisible((ImWchar)' ', false);
+    SetGlyphVisible((ImWchar)'\t', false);
+
+    // Ellipsis character is required for rendering elided text. We prefer using U+2026 (horizontal ellipsis).
+    // However some old fonts may contain ellipsis at U+0085. Here we auto-detect most suitable ellipsis character.
+    // FIXME: Note that 0x2026 is rarely included in our font ranges. Because of this we are more likely to use three individual dots.
+    const ImWchar ellipsis_chars[] = { (ImWchar)0x2026, (ImWchar)0x0085 };
+    const ImWchar dots_chars[] = { (ImWchar)'.', (ImWchar)0xFF0E };
+    if (EllipsisChar == (ImWchar)-1)
+        EllipsisChar = FindFirstExistingGlyph(this, ellipsis_chars, IM_ARRAYSIZE(ellipsis_chars));
+    if (DotChar == (ImWchar)-1)
+        DotChar = FindFirstExistingGlyph(this, dots_chars, IM_ARRAYSIZE(dots_chars));
+
+    // Setup fallback character
+    const ImWchar fallback_chars[] = { (ImWchar)IM_UNICODE_CODEPOINT_INVALID, (ImWchar)'?', (ImWchar)' ' };
+    FallbackGlyph = FindGlyphNoFallback(FallbackChar);
+    if (FallbackGlyph == NULL)
+    {
+        FallbackChar = FindFirstExistingGlyph(this, fallback_chars, IM_ARRAYSIZE(fallback_chars));
+        FallbackGlyph = FindGlyphNoFallback(FallbackChar);
+        if (FallbackGlyph == NULL)
+        {
+            FallbackGlyph = &Glyphs.back();
+            FallbackChar = (ImWchar)FallbackGlyph->Codepoint;
+        }
+    }
+
+    FallbackAdvanceX = FallbackGlyph->AdvanceX;
+    for (int i = 0; i < max_codepoint + 1; i++)
+        if (IndexAdvanceX[i] < 0.0f)
+            IndexAdvanceX[i] = FallbackAdvanceX;
+}
+
+// API is designed this way to avoid exposing the 4K page size
+// e.g. use with IsGlyphRangeUnused(0, 255)
+bool ImFont::IsGlyphRangeUnused(unsigned int c_begin, unsigned int c_last)
+{
+    unsigned int page_begin = (c_begin / 4096);
+    unsigned int page_last = (c_last / 4096);
+    for (unsigned int page_n = page_begin; page_n <= page_last; page_n++)
+        if ((page_n >> 3) < sizeof(Used4kPagesMap))
+            if (Used4kPagesMap[page_n >> 3] & (1 << (page_n & 7)))
+                return false;
+    return true;
+}
+
+void ImFont::SetGlyphVisible(ImWchar c, bool visible)
+{
+    if (ImFontGlyph* glyph = (ImFontGlyph*)(void*)FindGlyph((ImWchar)c))
+        glyph->Visible = visible ? 1 : 0;
+}
+
+void ImFont::GrowIndex(int new_size)
+{
+    IM_ASSERT(IndexAdvanceX.Size == IndexLookup.Size);
+    if (new_size <= IndexLookup.Size)
+        return;
+    IndexAdvanceX.resize(new_size, -1.0f);
+    IndexLookup.resize(new_size, (ImWchar)-1);
+}
+
+// x0/y0/x1/y1 are offset from the character upper-left layout position, in pixels. Therefore x0/y0 are often fairly close to zero.
+// Not to be mistaken with texture coordinates, which are held by u0/v0/u1/v1 in normalized format (0.0..1.0 on each texture axis).
+// 'cfg' is not necessarily == 'this->ConfigData' because multiple source fonts+configs can be used to build one target font.
+void ImFont::AddGlyph(const ImFontConfig* cfg, ImWchar codepoint, float x0, float y0, float x1, float y1, float u0, float v0, float u1, float v1, float advance_x)
+{
+    if (cfg != NULL)
+    {
+        // Clamp & recenter if needed
+        const float advance_x_original = advance_x;
+        advance_x = ImClamp(advance_x, cfg->GlyphMinAdvanceX, cfg->GlyphMaxAdvanceX);
+        if (advance_x != advance_x_original)
+        {
+            float char_off_x = cfg->PixelSnapH ? ImFloor((advance_x - advance_x_original) * 0.5f) : (advance_x - advance_x_original) * 0.5f;
+            x0 += char_off_x;
+            x1 += char_off_x;
+        }
+
+        // Snap to pixel
+        if (cfg->PixelSnapH)
+            advance_x = IM_ROUND(advance_x);
+
+        // Bake spacing
+        advance_x += cfg->GlyphExtraSpacing.x;
+    }
+
+    Glyphs.resize(Glyphs.Size + 1);
+    ImFontGlyph& glyph = Glyphs.back();
+    glyph.Codepoint = (unsigned int)codepoint;
+    glyph.Visible = (x0 != x1) && (y0 != y1);
+    glyph.Colored = false;
+    glyph.X0 = x0;
+    glyph.Y0 = y0;
+    glyph.X1 = x1;
+    glyph.Y1 = y1;
+    glyph.U0 = u0;
+    glyph.V0 = v0;
+    glyph.U1 = u1;
+    glyph.V1 = v1;
+    glyph.AdvanceX = advance_x;
+
+    // Compute rough surface usage metrics (+1 to account for average padding, +0.99 to round)
+    // We use (U1-U0)*TexWidth instead of X1-X0 to account for oversampling.
+    float pad = ContainerAtlas->TexGlyphPadding + 0.99f;
+    DirtyLookupTables = true;
+    MetricsTotalSurface += (int)((glyph.U1 - glyph.U0) * ContainerAtlas->TexWidth + pad) * (int)((glyph.V1 - glyph.V0) * ContainerAtlas->TexHeight + pad);
+}
+
+void ImFont::AddRemapChar(ImWchar dst, ImWchar src, bool overwrite_dst)
+{
+    IM_ASSERT(IndexLookup.Size > 0);    // Currently this can only be called AFTER the font has been built, aka after calling ImFontAtlas::GetTexDataAs*() function.
+    unsigned int index_size = (unsigned int)IndexLookup.Size;
+
+    if (dst < index_size && IndexLookup.Data[dst] == (ImWchar)-1 && !overwrite_dst) // 'dst' already exists
+        return;
+    if (src >= index_size && dst >= index_size) // both 'dst' and 'src' don't exist -> no-op
+        return;
+
+    GrowIndex(dst + 1);
+    IndexLookup[dst] = (src < index_size) ? IndexLookup.Data[src] : (ImWchar)-1;
+    IndexAdvanceX[dst] = (src < index_size) ? IndexAdvanceX.Data[src] : 1.0f;
+}
+
+const ImFontGlyph* ImFont::FindGlyph(ImWchar c) const
+{
+    if (c >= (size_t)IndexLookup.Size)
+        return FallbackGlyph;
+    const ImWchar i = IndexLookup.Data[c];
+    if (i == (ImWchar)-1)
+        return FallbackGlyph;
+    return &Glyphs.Data[i];
+}
+
+const ImFontGlyph* ImFont::FindGlyphNoFallback(ImWchar c) const
+{
+    if (c >= (size_t)IndexLookup.Size)
+        return NULL;
+    const ImWchar i = IndexLookup.Data[c];
+    if (i == (ImWchar)-1)
+        return NULL;
+    return &Glyphs.Data[i];
+}
+
+const char* ImFont::CalcWordWrapPositionA(float scale, const char* text, const char* text_end, float wrap_width) const
+{
+    // Simple word-wrapping for English, not full-featured. Please submit failing cases!
+    // FIXME: Much possible improvements (don't cut things like "word !", "word!!!" but cut within "word,,,,", more sensible support for punctuations, support for Unicode punctuations, etc.)
+
+    // For references, possible wrap point marked with ^
+    //  "aaa bbb, ccc,ddd. eee   fff. ggg!"
+    //      ^    ^    ^   ^   ^__    ^    ^
+
+    // List of hardcoded separators: .,;!?'"
+
+    // Skip extra blanks after a line returns (that includes not counting them in width computation)
+    // e.g. "Hello    world" --> "Hello" "World"
+
+    // Cut words that cannot possibly fit within one line.
+    // e.g.: "The tropical fish" with ~5 characters worth of width --> "The tr" "opical" "fish"
+
+    float line_width = 0.0f;
+    float word_width = 0.0f;
+    float blank_width = 0.0f;
+    wrap_width /= scale; // We work with unscaled widths to avoid scaling every characters
+
+    const char* word_end = text;
+    const char* prev_word_end = NULL;
+    bool inside_word = true;
+
+    const char* s = text;
+    while (s < text_end)
+    {
+        unsigned int c = (unsigned int)*s;
+        const char* next_s;
+        if (c < 0x80)
+            next_s = s + 1;
+        else
+            next_s = s + ImTextCharFromUtf8(&c, s, text_end);
+        if (c == 0)
+            break;
+
+        if (c < 32)
+        {
+            if (c == '\n')
+            {
+                line_width = word_width = blank_width = 0.0f;
+                inside_word = true;
+                s = next_s;
+                continue;
+            }
+            if (c == '\r')
+            {
+                s = next_s;
+                continue;
+            }
+        }
+
+        const float char_width = ((int)c < IndexAdvanceX.Size ? IndexAdvanceX.Data[c] : FallbackAdvanceX);
+        if (ImCharIsBlankW(c))
+        {
+            if (inside_word)
+            {
+                line_width += blank_width;
+                blank_width = 0.0f;
+                word_end = s;
+            }
+            blank_width += char_width;
+            inside_word = false;
+        }
+        else
+        {
+            word_width += char_width;
+            if (inside_word)
+            {
+                word_end = next_s;
+            }
+            else
+            {
+                prev_word_end = word_end;
+                line_width += word_width + blank_width;
+                word_width = blank_width = 0.0f;
+            }
+
+            // Allow wrapping after punctuation.
+            inside_word = (c != '.' && c != ',' && c != ';' && c != '!' && c != '?' && c != '\"');
+        }
+
+        // We ignore blank width at the end of the line (they can be skipped)
+        if (line_width + word_width > wrap_width)
+        {
+            // Words that cannot possibly fit within an entire line will be cut anywhere.
+            if (word_width < wrap_width)
+                s = prev_word_end ? prev_word_end : word_end;
+            break;
+        }
+
+        s = next_s;
+    }
+
+    return s;
+}
+
+ImVec2 ImFont::CalcTextSizeA(float size, float max_width, float wrap_width, const char* text_begin, const char* text_end, const char** remaining) const
+{
+    if (!text_end)
+        text_end = text_begin + strlen(text_begin); // FIXME-OPT: Need to avoid this.
+
+    const float line_height = size;
+    const float scale = size / FontSize;
+
+    ImVec2 text_size = ImVec2(0, 0);
+    float line_width = 0.0f;
+
+    const bool word_wrap_enabled = (wrap_width > 0.0f);
+    const char* word_wrap_eol = NULL;
+
+    const char* s = text_begin;
+    while (s < text_end)
+    {
+        if (word_wrap_enabled)
+        {
+            // Calculate how far we can render. Requires two passes on the string data but keeps the code simple and not intrusive for what's essentially an uncommon feature.
+            if (!word_wrap_eol)
+            {
+                word_wrap_eol = CalcWordWrapPositionA(scale, s, text_end, wrap_width - line_width);
+                if (word_wrap_eol == s) // Wrap_width is too small to fit anything. Force displaying 1 character to minimize the height discontinuity.
+                    word_wrap_eol++;    // +1 may not be a character start point in UTF-8 but it's ok because we use s >= word_wrap_eol below
+            }
+
+            if (s >= word_wrap_eol)
+            {
+                if (text_size.x < line_width)
+                    text_size.x = line_width;
+                text_size.y += line_height;
+                line_width = 0.0f;
+                word_wrap_eol = NULL;
+
+                // Wrapping skips upcoming blanks
+                while (s < text_end)
+                {
+                    const char c = *s;
+                    if (ImCharIsBlankA(c)) { s++; } else if (c == '\n') { s++; break; } else { break; }
+                }
+                continue;
+            }
+        }
+
+        // Decode and advance source
+        const char* prev_s = s;
+        unsigned int c = (unsigned int)*s;
+        if (c < 0x80)
+        {
+            s += 1;
+        }
+        else
+        {
+            s += ImTextCharFromUtf8(&c, s, text_end);
+            if (c == 0) // Malformed UTF-8?
+                break;
+        }
+
+        if (c < 32)
+        {
+            if (c == '\n')
+            {
+                text_size.x = ImMax(text_size.x, line_width);
+                text_size.y += line_height;
+                line_width = 0.0f;
+                continue;
+            }
+            if (c == '\r')
+                continue;
+        }
+
+        const float char_width = ((int)c < IndexAdvanceX.Size ? IndexAdvanceX.Data[c] : FallbackAdvanceX) * scale;
+        if (line_width + char_width >= max_width)
+        {
+            s = prev_s;
+            break;
+        }
+
+        line_width += char_width;
+    }
+
+    if (text_size.x < line_width)
+        text_size.x = line_width;
+
+    if (line_width > 0 || text_size.y == 0.0f)
+        text_size.y += line_height;
+
+    if (remaining)
+        *remaining = s;
+
+    return text_size;
+}
+
+// Note: as with every ImDrawList drawing function, this expects that the font atlas texture is bound.
+void ImFont::RenderChar(ImDrawList* draw_list, float size, const ImVec2& pos, ImU32 col, ImWchar c) const
+{
+    const ImFontGlyph* glyph = FindGlyph(c);
+    if (!glyph || !glyph->Visible)
+        return;
+    if (glyph->Colored)
+        col |= ~IM_COL32_A_MASK;
+    float scale = (size >= 0.0f) ? (size / FontSize) : 1.0f;
+    float x = IM_FLOOR(pos.x);
+    float y = IM_FLOOR(pos.y);
+    draw_list->PrimReserve(6, 4);
+    draw_list->PrimRectUV(ImVec2(x + glyph->X0 * scale, y + glyph->Y0 * scale), ImVec2(x + glyph->X1 * scale, y + glyph->Y1 * scale), ImVec2(glyph->U0, glyph->V0), ImVec2(glyph->U1, glyph->V1), col);
+}
+
+// Note: as with every ImDrawList drawing function, this expects that the font atlas texture is bound.
+void ImFont::RenderText(ImDrawList* draw_list, float size, const ImVec2& pos, ImU32 col, const ImVec4& clip_rect, const char* text_begin, const char* text_end, float wrap_width, bool cpu_fine_clip) const
+{
+    if (!text_end)
+        text_end = text_begin + strlen(text_begin); // ImGui:: functions generally already provides a valid text_end, so this is merely to handle direct calls.
+
+    // Align to be pixel perfect
+    float x = IM_FLOOR(pos.x);
+    float y = IM_FLOOR(pos.y);
+    if (y > clip_rect.w)
+        return;
+
+    const float start_x = x;
+    const float scale = size / FontSize;
+    const float line_height = FontSize * scale;
+    const bool word_wrap_enabled = (wrap_width > 0.0f);
+    const char* word_wrap_eol = NULL;
+
+    // Fast-forward to first visible line
+    const char* s = text_begin;
+    if (y + line_height < clip_rect.y && !word_wrap_enabled)
+        while (y + line_height < clip_rect.y && s < text_end)
+        {
+            s = (const char*)memchr(s, '\n', text_end - s);
+            s = s ? s + 1 : text_end;
+            y += line_height;
+        }
+
+    // For large text, scan for the last visible line in order to avoid over-reserving in the call to PrimReserve()
+    // Note that very large horizontal line will still be affected by the issue (e.g. a one megabyte string buffer without a newline will likely crash atm)
+    if (text_end - s > 10000 && !word_wrap_enabled)
+    {
+        const char* s_end = s;
+        float y_end = y;
+        while (y_end < clip_rect.w && s_end < text_end)
+        {
+            s_end = (const char*)memchr(s_end, '\n', text_end - s_end);
+            s_end = s_end ? s_end + 1 : text_end;
+            y_end += line_height;
+        }
+        text_end = s_end;
+    }
+    if (s == text_end)
+        return;
+
+    // Reserve vertices for remaining worse case (over-reserving is useful and easily amortized)
+    const int vtx_count_max = (int)(text_end - s) * 4;
+    const int idx_count_max = (int)(text_end - s) * 6;
+    const int idx_expected_size = draw_list->IdxBuffer.Size + idx_count_max;
+    draw_list->PrimReserve(idx_count_max, vtx_count_max);
+
+    ImDrawVert* vtx_write = draw_list->_VtxWritePtr;
+    ImDrawIdx* idx_write = draw_list->_IdxWritePtr;
+    unsigned int vtx_current_idx = draw_list->_VtxCurrentIdx;
+
+    const ImU32 col_untinted = col | ~IM_COL32_A_MASK;
+
+    while (s < text_end)
+    {
+        if (word_wrap_enabled)
+        {
+            // Calculate how far we can render. Requires two passes on the string data but keeps the code simple and not intrusive for what's essentially an uncommon feature.
+            if (!word_wrap_eol)
+            {
+                word_wrap_eol = CalcWordWrapPositionA(scale, s, text_end, wrap_width - (x - start_x));
+                if (word_wrap_eol == s) // Wrap_width is too small to fit anything. Force displaying 1 character to minimize the height discontinuity.
+                    word_wrap_eol++;    // +1 may not be a character start point in UTF-8 but it's ok because we use s >= word_wrap_eol below
+            }
+
+            if (s >= word_wrap_eol)
+            {
+                x = start_x;
+                y += line_height;
+                word_wrap_eol = NULL;
+
+                // Wrapping skips upcoming blanks
+                while (s < text_end)
+                {
+                    const char c = *s;
+                    if (ImCharIsBlankA(c)) { s++; } else if (c == '\n') { s++; break; } else { break; }
+                }
+                continue;
+            }
+        }
+
+        // Decode and advance source
+        unsigned int c = (unsigned int)*s;
+        if (c < 0x80)
+        {
+            s += 1;
+        }
+        else
+        {
+            s += ImTextCharFromUtf8(&c, s, text_end);
+            if (c == 0) // Malformed UTF-8?
+                break;
+        }
+
+        if (c < 32)
+        {
+            if (c == '\n')
+            {
+                x = start_x;
+                y += line_height;
+                if (y > clip_rect.w)
+                    break; // break out of main loop
+                continue;
+            }
+            if (c == '\r')
+                continue;
+        }
+
+        const ImFontGlyph* glyph = FindGlyph((ImWchar)c);
+        if (glyph == NULL)
+            continue;
+
+        float char_width = glyph->AdvanceX * scale;
+        if (glyph->Visible)
+        {
+            // We don't do a second finer clipping test on the Y axis as we've already skipped anything before clip_rect.y and exit once we pass clip_rect.w
+            float x1 = x + glyph->X0 * scale;
+            float x2 = x + glyph->X1 * scale;
+            float y1 = y + glyph->Y0 * scale;
+            float y2 = y + glyph->Y1 * scale;
+            if (x1 <= clip_rect.z && x2 >= clip_rect.x)
+            {
+                // Render a character
+                float u1 = glyph->U0;
+                float v1 = glyph->V0;
+                float u2 = glyph->U1;
+                float v2 = glyph->V1;
+
+                // CPU side clipping used to fit text in their frame when the frame is too small. Only does clipping for axis aligned quads.
+                if (cpu_fine_clip)
+                {
+                    if (x1 < clip_rect.x)
+                    {
+                        u1 = u1 + (1.0f - (x2 - clip_rect.x) / (x2 - x1)) * (u2 - u1);
+                        x1 = clip_rect.x;
+                    }
+                    if (y1 < clip_rect.y)
+                    {
+                        v1 = v1 + (1.0f - (y2 - clip_rect.y) / (y2 - y1)) * (v2 - v1);
+                        y1 = clip_rect.y;
+                    }
+                    if (x2 > clip_rect.z)
+                    {
+                        u2 = u1 + ((clip_rect.z - x1) / (x2 - x1)) * (u2 - u1);
+                        x2 = clip_rect.z;
+                    }
+                    if (y2 > clip_rect.w)
+                    {
+                        v2 = v1 + ((clip_rect.w - y1) / (y2 - y1)) * (v2 - v1);
+                        y2 = clip_rect.w;
+                    }
+                    if (y1 >= y2)
+                    {
+                        x += char_width;
+                        continue;
+                    }
+                }
+
+                // Support for untinted glyphs
+                ImU32 glyph_col = glyph->Colored ? col_untinted : col;
+
+                // We are NOT calling PrimRectUV() here because non-inlined causes too much overhead in a debug builds. Inlined here:
+                {
+                    idx_write[0] = (ImDrawIdx)(vtx_current_idx); idx_write[1] = (ImDrawIdx)(vtx_current_idx+1); idx_write[2] = (ImDrawIdx)(vtx_current_idx+2);
+                    idx_write[3] = (ImDrawIdx)(vtx_current_idx); idx_write[4] = (ImDrawIdx)(vtx_current_idx+2); idx_write[5] = (ImDrawIdx)(vtx_current_idx+3);
+                    vtx_write[0].pos.x = x1; vtx_write[0].pos.y = y1; vtx_write[0].col = glyph_col; vtx_write[0].uv.x = u1; vtx_write[0].uv.y = v1;
+                    vtx_write[1].pos.x = x2; vtx_write[1].pos.y = y1; vtx_write[1].col = glyph_col; vtx_write[1].uv.x = u2; vtx_write[1].uv.y = v1;
+                    vtx_write[2].pos.x = x2; vtx_write[2].pos.y = y2; vtx_write[2].col = glyph_col; vtx_write[2].uv.x = u2; vtx_write[2].uv.y = v2;
+                    vtx_write[3].pos.x = x1; vtx_write[3].pos.y = y2; vtx_write[3].col = glyph_col; vtx_write[3].uv.x = u1; vtx_write[3].uv.y = v2;
+                    vtx_write += 4;
+                    vtx_current_idx += 4;
+                    idx_write += 6;
+                }
+            }
+        }
+        x += char_width;
+    }
+
+    // Give back unused vertices (clipped ones, blanks) ~ this is essentially a PrimUnreserve() action.
+    draw_list->VtxBuffer.Size = (int)(vtx_write - draw_list->VtxBuffer.Data); // Same as calling shrink()
+    draw_list->IdxBuffer.Size = (int)(idx_write - draw_list->IdxBuffer.Data);
+    draw_list->CmdBuffer[draw_list->CmdBuffer.Size - 1].ElemCount -= (idx_expected_size - draw_list->IdxBuffer.Size);
+    draw_list->_VtxWritePtr = vtx_write;
+    draw_list->_IdxWritePtr = idx_write;
+    draw_list->_VtxCurrentIdx = vtx_current_idx;
+}
+
+//-----------------------------------------------------------------------------
+// [SECTION] ImGui Internal Render Helpers
+//-----------------------------------------------------------------------------
+// Vaguely redesigned to stop accessing ImGui global state:
+// - RenderArrow()
+// - RenderBullet()
+// - RenderCheckMark()
+// - RenderArrowPointingAt()
+// - RenderRectFilledRangeH()
+// - RenderRectFilledWithHole()
+//-----------------------------------------------------------------------------
+// Function in need of a redesign (legacy mess)
+// - RenderColorRectWithAlphaCheckerboard()
+//-----------------------------------------------------------------------------
+
+// Render an arrow aimed to be aligned with text (p_min is a position in the same space text would be positioned). To e.g. denote expanded/collapsed state
+void ImGui::RenderArrow(ImDrawList* draw_list, ImVec2 pos, ImU32 col, ImGuiDir dir, float scale)
+{
+    const float h = draw_list->_Data->FontSize * 1.00f;
+    float r = h * 0.40f * scale;
+    ImVec2 center = pos + ImVec2(h * 0.50f, h * 0.50f * scale);
+
+    ImVec2 a, b, c;
+    switch (dir)
+    {
+    case ImGuiDir_Up:
+    case ImGuiDir_Down:
+        if (dir == ImGuiDir_Up) r = -r;
+        a = ImVec2(+0.000f, +0.750f) * r;
+        b = ImVec2(-0.866f, -0.750f) * r;
+        c = ImVec2(+0.866f, -0.750f) * r;
+        break;
+    case ImGuiDir_Left:
+    case ImGuiDir_Right:
+        if (dir == ImGuiDir_Left) r = -r;
+        a = ImVec2(+0.750f, +0.000f) * r;
+        b = ImVec2(-0.750f, +0.866f) * r;
+        c = ImVec2(-0.750f, -0.866f) * r;
+        break;
+    case ImGuiDir_None:
+    case ImGuiDir_COUNT:
+        IM_ASSERT(0);
+        break;
+    }
+    draw_list->AddTriangleFilled(center + a, center + b, center + c, col);
+}
+
+void ImGui::RenderBullet(ImDrawList* draw_list, ImVec2 pos, ImU32 col)
+{
+    draw_list->AddCircleFilled(pos, draw_list->_Data->FontSize * 0.20f, col, 8);
+}
+
+void ImGui::RenderCheckMark(ImDrawList* draw_list, ImVec2 pos, ImU32 col, float sz)
+{
+    float thickness = ImMax(sz / 5.0f, 1.0f);
+    sz -= thickness * 0.5f;
+    pos += ImVec2(thickness * 0.25f, thickness * 0.25f);
+
+    float third = sz / 3.0f;
+    float bx = pos.x + third;
+    float by = pos.y + sz - third * 0.5f;
+    draw_list->PathLineTo(ImVec2(bx - third, by - third));
+    draw_list->PathLineTo(ImVec2(bx, by));
+    draw_list->PathLineTo(ImVec2(bx + third * 2.0f, by - third * 2.0f));
+    draw_list->PathStroke(col, 0, thickness);
+}
+
+// Render an arrow. 'pos' is position of the arrow tip. half_sz.x is length from base to tip. half_sz.y is length on each side.
+void ImGui::RenderArrowPointingAt(ImDrawList* draw_list, ImVec2 pos, ImVec2 half_sz, ImGuiDir direction, ImU32 col)
+{
+    switch (direction)
+    {
+    case ImGuiDir_Left:  draw_list->AddTriangleFilled(ImVec2(pos.x + half_sz.x, pos.y - half_sz.y), ImVec2(pos.x + half_sz.x, pos.y + half_sz.y), pos, col); return;
+    case ImGuiDir_Right: draw_list->AddTriangleFilled(ImVec2(pos.x - half_sz.x, pos.y + half_sz.y), ImVec2(pos.x - half_sz.x, pos.y - half_sz.y), pos, col); return;
+    case ImGuiDir_Up:    draw_list->AddTriangleFilled(ImVec2(pos.x + half_sz.x, pos.y + half_sz.y), ImVec2(pos.x - half_sz.x, pos.y + half_sz.y), pos, col); return;
+    case ImGuiDir_Down:  draw_list->AddTriangleFilled(ImVec2(pos.x - half_sz.x, pos.y - half_sz.y), ImVec2(pos.x + half_sz.x, pos.y - half_sz.y), pos, col); return;
+    case ImGuiDir_None: case ImGuiDir_COUNT: break; // Fix warnings
+    }
+}
+
+static inline float ImAcos01(float x)
+{
+    if (x <= 0.0f) return IM_PI * 0.5f;
+    if (x >= 1.0f) return 0.0f;
+    return ImAcos(x);
+    //return (-0.69813170079773212f * x * x - 0.87266462599716477f) * x + 1.5707963267948966f; // Cheap approximation, may be enough for what we do.
+}
+
+// FIXME: Cleanup and move code to ImDrawList.
+void ImGui::RenderRectFilledRangeH(ImDrawList* draw_list, const ImRect& rect, ImU32 col, float x_start_norm, float x_end_norm, float rounding)
+{
+    if (x_end_norm == x_start_norm)
+        return;
+    if (x_start_norm > x_end_norm)
+        ImSwap(x_start_norm, x_end_norm);
+
+    ImVec2 p0 = ImVec2(ImLerp(rect.Min.x, rect.Max.x, x_start_norm), rect.Min.y);
+    ImVec2 p1 = ImVec2(ImLerp(rect.Min.x, rect.Max.x, x_end_norm), rect.Max.y);
+    if (rounding == 0.0f)
+    {
+        draw_list->AddRectFilled(p0, p1, col, 0.0f);
+        return;
+    }
+
+    rounding = ImClamp(ImMin((rect.Max.x - rect.Min.x) * 0.5f, (rect.Max.y - rect.Min.y) * 0.5f) - 1.0f, 0.0f, rounding);
+    const float inv_rounding = 1.0f / rounding;
+    const float arc0_b = ImAcos01(1.0f - (p0.x - rect.Min.x) * inv_rounding);
+    const float arc0_e = ImAcos01(1.0f - (p1.x - rect.Min.x) * inv_rounding);
+    const float half_pi = IM_PI * 0.5f; // We will == compare to this because we know this is the exact value ImAcos01 can return.
+    const float x0 = ImMax(p0.x, rect.Min.x + rounding);
+    if (arc0_b == arc0_e)
+    {
+        draw_list->PathLineTo(ImVec2(x0, p1.y));
+        draw_list->PathLineTo(ImVec2(x0, p0.y));
+    }
+    else if (arc0_b == 0.0f && arc0_e == half_pi)
+    {
+        draw_list->PathArcToFast(ImVec2(x0, p1.y - rounding), rounding, 3, 6); // BL
+        draw_list->PathArcToFast(ImVec2(x0, p0.y + rounding), rounding, 6, 9); // TR
+    }
+    else
+    {
+        draw_list->PathArcTo(ImVec2(x0, p1.y - rounding), rounding, IM_PI - arc0_e, IM_PI - arc0_b, 3); // BL
+        draw_list->PathArcTo(ImVec2(x0, p0.y + rounding), rounding, IM_PI + arc0_b, IM_PI + arc0_e, 3); // TR
+    }
+    if (p1.x > rect.Min.x + rounding)
+    {
+        const float arc1_b = ImAcos01(1.0f - (rect.Max.x - p1.x) * inv_rounding);
+        const float arc1_e = ImAcos01(1.0f - (rect.Max.x - p0.x) * inv_rounding);
+        const float x1 = ImMin(p1.x, rect.Max.x - rounding);
+        if (arc1_b == arc1_e)
+        {
+            draw_list->PathLineTo(ImVec2(x1, p0.y));
+            draw_list->PathLineTo(ImVec2(x1, p1.y));
+        }
+        else if (arc1_b == 0.0f && arc1_e == half_pi)
+        {
+            draw_list->PathArcToFast(ImVec2(x1, p0.y + rounding), rounding, 9, 12); // TR
+            draw_list->PathArcToFast(ImVec2(x1, p1.y - rounding), rounding, 0, 3);  // BR
+        }
+        else
+        {
+            draw_list->PathArcTo(ImVec2(x1, p0.y + rounding), rounding, -arc1_e, -arc1_b, 3); // TR
+            draw_list->PathArcTo(ImVec2(x1, p1.y - rounding), rounding, +arc1_b, +arc1_e, 3); // BR
+        }
+    }
+    draw_list->PathFillConvex(col);
+}
+
+void ImGui::RenderRectFilledWithHole(ImDrawList* draw_list, const ImRect& outer, const ImRect& inner, ImU32 col, float rounding)
+{
+    const bool fill_L = (inner.Min.x > outer.Min.x);
+    const bool fill_R = (inner.Max.x < outer.Max.x);
+    const bool fill_U = (inner.Min.y > outer.Min.y);
+    const bool fill_D = (inner.Max.y < outer.Max.y);
+    if (fill_L) draw_list->AddRectFilled(ImVec2(outer.Min.x, inner.Min.y), ImVec2(inner.Min.x, inner.Max.y), col, rounding, ImDrawFlags_RoundCornersNone | (fill_U ? 0 : ImDrawFlags_RoundCornersTopLeft)    | (fill_D ? 0 : ImDrawFlags_RoundCornersBottomLeft));
+    if (fill_R) draw_list->AddRectFilled(ImVec2(inner.Max.x, inner.Min.y), ImVec2(outer.Max.x, inner.Max.y), col, rounding, ImDrawFlags_RoundCornersNone | (fill_U ? 0 : ImDrawFlags_RoundCornersTopRight)   | (fill_D ? 0 : ImDrawFlags_RoundCornersBottomRight));
+    if (fill_U) draw_list->AddRectFilled(ImVec2(inner.Min.x, outer.Min.y), ImVec2(inner.Max.x, inner.Min.y), col, rounding, ImDrawFlags_RoundCornersNone | (fill_L ? 0 : ImDrawFlags_RoundCornersTopLeft)    | (fill_R ? 0 : ImDrawFlags_RoundCornersTopRight));
+    if (fill_D) draw_list->AddRectFilled(ImVec2(inner.Min.x, inner.Max.y), ImVec2(inner.Max.x, outer.Max.y), col, rounding, ImDrawFlags_RoundCornersNone | (fill_L ? 0 : ImDrawFlags_RoundCornersBottomLeft) | (fill_R ? 0 : ImDrawFlags_RoundCornersBottomRight));
+    if (fill_L && fill_U) draw_list->AddRectFilled(ImVec2(outer.Min.x, outer.Min.y), ImVec2(inner.Min.x, inner.Min.y), col, rounding, ImDrawFlags_RoundCornersTopLeft);
+    if (fill_R && fill_U) draw_list->AddRectFilled(ImVec2(inner.Max.x, outer.Min.y), ImVec2(outer.Max.x, inner.Min.y), col, rounding, ImDrawFlags_RoundCornersTopRight);
+    if (fill_L && fill_D) draw_list->AddRectFilled(ImVec2(outer.Min.x, inner.Max.y), ImVec2(inner.Min.x, outer.Max.y), col, rounding, ImDrawFlags_RoundCornersBottomLeft);
+    if (fill_R && fill_D) draw_list->AddRectFilled(ImVec2(inner.Max.x, inner.Max.y), ImVec2(outer.Max.x, outer.Max.y), col, rounding, ImDrawFlags_RoundCornersBottomRight);
+}
+
+// Helper for ColorPicker4()
+// NB: This is rather brittle and will show artifact when rounding this enabled if rounded corners overlap multiple cells. Caller currently responsible for avoiding that.
+// Spent a non reasonable amount of time trying to getting this right for ColorButton with rounding+anti-aliasing+ImGuiColorEditFlags_HalfAlphaPreview flag + various grid sizes and offsets, and eventually gave up... probably more reasonable to disable rounding altogether.
+// FIXME: uses ImGui::GetColorU32
+void ImGui::RenderColorRectWithAlphaCheckerboard(ImDrawList* draw_list, ImVec2 p_min, ImVec2 p_max, ImU32 col, float grid_step, ImVec2 grid_off, float rounding, ImDrawFlags flags)
+{
+    if ((flags & ImDrawFlags_RoundCornersMask_) == 0)
+        flags = ImDrawFlags_RoundCornersDefault_;
+    if (((col & IM_COL32_A_MASK) >> IM_COL32_A_SHIFT) < 0xFF)
+    {
+        ImU32 col_bg1 = GetColorU32(ImAlphaBlendColors(IM_COL32(204, 204, 204, 255), col));
+        ImU32 col_bg2 = GetColorU32(ImAlphaBlendColors(IM_COL32(128, 128, 128, 255), col));
+        draw_list->AddRectFilled(p_min, p_max, col_bg1, rounding, flags);
+
+        int yi = 0;
+        for (float y = p_min.y + grid_off.y; y < p_max.y; y += grid_step, yi++)
+        {
+            float y1 = ImClamp(y, p_min.y, p_max.y), y2 = ImMin(y + grid_step, p_max.y);
+            if (y2 <= y1)
+                continue;
+            for (float x = p_min.x + grid_off.x + (yi & 1) * grid_step; x < p_max.x; x += grid_step * 2.0f)
+            {
+                float x1 = ImClamp(x, p_min.x, p_max.x), x2 = ImMin(x + grid_step, p_max.x);
+                if (x2 <= x1)
+                    continue;
+                ImDrawFlags cell_flags = ImDrawFlags_RoundCornersNone;
+                if (y1 <= p_min.y) { if (x1 <= p_min.x) cell_flags |= ImDrawFlags_RoundCornersTopLeft; if (x2 >= p_max.x) cell_flags |= ImDrawFlags_RoundCornersTopRight; }
+                if (y2 >= p_max.y) { if (x1 <= p_min.x) cell_flags |= ImDrawFlags_RoundCornersBottomLeft; if (x2 >= p_max.x) cell_flags |= ImDrawFlags_RoundCornersBottomRight; }
+
+                // Combine flags
+                cell_flags = (flags == ImDrawFlags_RoundCornersNone || cell_flags == ImDrawFlags_RoundCornersNone) ? ImDrawFlags_RoundCornersNone : (cell_flags & flags);
+                draw_list->AddRectFilled(ImVec2(x1, y1), ImVec2(x2, y2), col_bg2, rounding, cell_flags);
+            }
+        }
+    }
+    else
+    {
+        draw_list->AddRectFilled(p_min, p_max, col, rounding, flags);
+    }
+}
+
+//-----------------------------------------------------------------------------
+// [SECTION] Decompression code
+//-----------------------------------------------------------------------------
+// Compressed with stb_compress() then converted to a C array and encoded as base85.
+// Use the program in misc/fonts/binary_to_compressed_c.cpp to create the array from a TTF file.
+// The purpose of encoding as base85 instead of "0x00,0x01,..." style is only save on _source code_ size.
+// Decompression from stb.h (public domain) by Sean Barrett https://github.com/nothings/stb/blob/master/stb.h
+//-----------------------------------------------------------------------------
+
+static unsigned int stb_decompress_length(const unsigned char *input)
+{
+    return (input[8] << 24) + (input[9] << 16) + (input[10] << 8) + input[11];
+}
+
+static unsigned char *stb__barrier_out_e, *stb__barrier_out_b;
+static const unsigned char *stb__barrier_in_b;
+static unsigned char *stb__dout;
+static void stb__match(const unsigned char *data, unsigned int length)
+{
+    // INVERSE of memmove... write each byte before copying the next...
+    IM_ASSERT(stb__dout + length <= stb__barrier_out_e);
+    if (stb__dout + length > stb__barrier_out_e) { stb__dout += length; return; }
+    if (data < stb__barrier_out_b) { stb__dout = stb__barrier_out_e+1; return; }
+    while (length--) *stb__dout++ = *data++;
+}
+
+static void stb__lit(const unsigned char *data, unsigned int length)
+{
+    IM_ASSERT(stb__dout + length <= stb__barrier_out_e);
+    if (stb__dout + length > stb__barrier_out_e) { stb__dout += length; return; }
+    if (data < stb__barrier_in_b) { stb__dout = stb__barrier_out_e+1; return; }
+    memcpy(stb__dout, data, length);
+    stb__dout += length;
+}
+
+#define stb__in2(x)   ((i[x] << 8) + i[(x)+1])
+#define stb__in3(x)   ((i[x] << 16) + stb__in2((x)+1))
+#define stb__in4(x)   ((i[x] << 24) + stb__in3((x)+1))
+
+static const unsigned char *stb_decompress_token(const unsigned char *i)
+{
+    if (*i >= 0x20) { // use fewer if's for cases that expand small
+        if (*i >= 0x80)       stb__match(stb__dout-i[1]-1, i[0] - 0x80 + 1), i += 2;
+        else if (*i >= 0x40)  stb__match(stb__dout-(stb__in2(0) - 0x4000 + 1), i[2]+1), i += 3;
+        else /* *i >= 0x20 */ stb__lit(i+1, i[0] - 0x20 + 1), i += 1 + (i[0] - 0x20 + 1);
+    } else { // more ifs for cases that expand large, since overhead is amortized
+        if (*i >= 0x18)       stb__match(stb__dout-(stb__in3(0) - 0x180000 + 1), i[3]+1), i += 4;
+        else if (*i >= 0x10)  stb__match(stb__dout-(stb__in3(0) - 0x100000 + 1), stb__in2(3)+1), i += 5;
+        else if (*i >= 0x08)  stb__lit(i+2, stb__in2(0) - 0x0800 + 1), i += 2 + (stb__in2(0) - 0x0800 + 1);
+        else if (*i == 0x07)  stb__lit(i+3, stb__in2(1) + 1), i += 3 + (stb__in2(1) + 1);
+        else if (*i == 0x06)  stb__match(stb__dout-(stb__in3(1)+1), i[4]+1), i += 5;
+        else if (*i == 0x04)  stb__match(stb__dout-(stb__in3(1)+1), stb__in2(4)+1), i += 6;
+    }
+    return i;
+}
+
+static unsigned int stb_adler32(unsigned int adler32, unsigned char *buffer, unsigned int buflen)
+{
+    const unsigned long ADLER_MOD = 65521;
+    unsigned long s1 = adler32 & 0xffff, s2 = adler32 >> 16;
+    unsigned long blocklen = buflen % 5552;
+
+    unsigned long i;
+    while (buflen) {
+        for (i=0; i + 7 < blocklen; i += 8) {
+            s1 += buffer[0], s2 += s1;
+            s1 += buffer[1], s2 += s1;
+            s1 += buffer[2], s2 += s1;
+            s1 += buffer[3], s2 += s1;
+            s1 += buffer[4], s2 += s1;
+            s1 += buffer[5], s2 += s1;
+            s1 += buffer[6], s2 += s1;
+            s1 += buffer[7], s2 += s1;
+
+            buffer += 8;
+        }
+
+        for (; i < blocklen; ++i)
+            s1 += *buffer++, s2 += s1;
+
+        s1 %= ADLER_MOD, s2 %= ADLER_MOD;
+        buflen -= blocklen;
+        blocklen = 5552;
+    }
+    return (unsigned int)(s2 << 16) + (unsigned int)s1;
+}
+
+static unsigned int stb_decompress(unsigned char *output, const unsigned char *i, unsigned int /*length*/)
+{
+    if (stb__in4(0) != 0x57bC0000) return 0;
+    if (stb__in4(4) != 0)          return 0; // error! stream is > 4GB
+    const unsigned int olen = stb_decompress_length(i);
+    stb__barrier_in_b = i;
+    stb__barrier_out_e = output + olen;
+    stb__barrier_out_b = output;
+    i += 16;
+
+    stb__dout = output;
+    for (;;) {
+        const unsigned char *old_i = i;
+        i = stb_decompress_token(i);
+        if (i == old_i) {
+            if (*i == 0x05 && i[1] == 0xfa) {
+                IM_ASSERT(stb__dout == output + olen);
+                if (stb__dout != output + olen) return 0;
+                if (stb_adler32(1, output, olen) != (unsigned int) stb__in4(2))
+                    return 0;
+                return olen;
+            } else {
+                IM_ASSERT(0); /* NOTREACHED */
+                return 0;
+            }
+        }
+        IM_ASSERT(stb__dout <= output + olen);
+        if (stb__dout > output + olen)
+            return 0;
+    }
+}
+
+//-----------------------------------------------------------------------------
+// [SECTION] Default font data (ProggyClean.ttf)
+//-----------------------------------------------------------------------------
+// ProggyClean.ttf
+// Copyright (c) 2004, 2005 Tristan Grimmer
+// MIT license (see License.txt in http://www.upperbounds.net/download/ProggyClean.ttf.zip)
+// Download and more information at http://upperbounds.net
+//-----------------------------------------------------------------------------
+// File: 'ProggyClean.ttf' (41208 bytes)
+// Exported using misc/fonts/binary_to_compressed_c.cpp (with compression + base85 string encoding).
+// The purpose of encoding as base85 instead of "0x00,0x01,..." style is only save on _source code_ size.
+//-----------------------------------------------------------------------------
+static const char proggy_clean_ttf_compressed_data_base85[11980 + 1] =
+    "7])#######hV0qs'/###[),##/l:$#Q6>##5[n42>c-TH`->>#/e>11NNV=Bv(*:.F?uu#(gRU.o0XGH`$vhLG1hxt9?W`#,5LsCp#-i>.r$<$6pD>Lb';9Crc6tgXmKVeU2cD4Eo3R/"
+    "2*>]b(MC;$jPfY.;h^`IWM9<Lh2TlS+f-s$o6Q<BWH`YiU.xfLq$N;$0iR/GX:U(jcW2p/W*q?-qmnUCI;jHSAiFWM.R*kU@C=GH?a9wp8f$e.-4^Qg1)Q-GL(lf(r/7GrRgwV%MS=C#"
+    "`8ND>Qo#t'X#(v#Y9w0#1D$CIf;W'#pWUPXOuxXuU(H9M(1<q-UE31#^-V'8IRUo7Qf./L>=Ke$$'5F%)]0^#0X@U.a<r:QLtFsLcL6##lOj)#.Y5<-R&KgLwqJfLgN&;Q?gI^#DY2uL"
+    "i@^rMl9t=cWq6##weg>$FBjVQTSDgEKnIS7EM9>ZY9w0#L;>>#Mx&4Mvt//L[MkA#W@lK.N'[0#7RL_&#w+F%HtG9M#XL`N&.,GM4Pg;-<nLENhvx>-VsM.M0rJfLH2eTM`*oJMHRC`N"
+    "kfimM2J,W-jXS:)r0wK#@Fge$U>`w'N7G#$#fB#$E^$#:9:hk+eOe--6x)F7*E%?76%^GMHePW-Z5l'&GiF#$956:rS?dA#fiK:)Yr+`&#0j@'DbG&#^$PG.Ll+DNa<XCMKEV*N)LN/N"
+    "*b=%Q6pia-Xg8I$<MR&,VdJe$<(7G;Ckl'&hF;;$<_=X(b.RS%%)###MPBuuE1V:v&cX&#2m#(&cV]`k9OhLMbn%s$G2,B$BfD3X*sp5#l,$R#]x_X1xKX%b5U*[r5iMfUo9U`N99hG)"
+    "tm+/Us9pG)XPu`<0s-)WTt(gCRxIg(%6sfh=ktMKn3j)<6<b5Sk_/0(^]AaN#(p/L>&VZ>1i%h1S9u5o@YaaW$e+b<TWFn/Z:Oh(Cx2$lNEoN^e)#CFY@@I;BOQ*sRwZtZxRcU7uW6CX"
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+    "x]Ip.PH^'/aqUO/$1WxLoW0[iLA<QT;5HKD+@qQ'NQ(3_PLhE48R.qAPSwQ0/WK?Z,[x?-J;jQTWA0X@KJ(_Y8N-:/M74:/-ZpKrUss?d#dZq]DAbkU*JqkL+nwX@@47`5>w=4h(9.`G"
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+    "'/###xe7q.73rI3*pP/$1>s9)W,JrM7SN]'/4C#v$U`0#V.[0>xQsH$fEmPMgY2u7Kh(G%siIfLSoS+MK2eTM$=5,M8p`A.;_R%#u[K#$x4AG8.kK/HSB==-'Ie/QTtG?-.*^N-4B/ZM"
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+    "@-W$U%VEQ/,,>>#)D<h#`)h0:<Q6909ua+&VU%n2:cG3FJ-%@Bj-DgLr`Hw&HAKjKjseK</xKT*)B,N9X3]krc12t'pgTV(Lv-tL[xg_%=M_q7a^x?7Ubd>#%8cY#YZ?=,`Wdxu/ae&#"
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+    "tlPN9J*rKaPct&?'uBCem^jn%9_K)<,C5K3s=5g&GmJb*[SYq7K;TRLGCsM-$$;S%:Y@r7AK0pprpL<Lrh,q7e/%KWK:50I^+m'vi`3?%Zp+<-d+$L-Sv:@.o19n$s0&39;kn;S%BSq*"
+    "$3WoJSCLweV[aZ'MQIjO<7;X-X;&+dMLvu#^UsGEC9WEc[X(wI7#2.(F0jV*eZf<-Qv3J-c+J5AlrB#$p(H68LvEA'q3n0#m,[`*8Ft)FcYgEud]CWfm68,(aLA$@EFTgLXoBq/UPlp7"
+    ":d[/;r_ix=:TF`S5H-b<LI&HY(K=h#)]Lk$K14lVfm:x$H<3^Ql<M`$OhapBnkup'D#L$Pb_`N*g]2e;X/Dtg,bsj&K#2[-:iYr'_wgH)NUIR8a1n#S?Yej'h8^58UbZd+^FKD*T@;6A"
+    "7aQC[K8d-(v6GI$x:T<&'Gp5Uf>@M.*J:;$-rv29'M]8qMv-tLp,'886iaC=Hb*YJoKJ,(j%K=H`K.v9HggqBIiZu'QvBT.#=)0ukruV&.)3=(^1`o*Pj4<-<aN((^7('#Z0wK#5GX@7"
+    "u][`*S^43933A4rl][`*O4CgLEl]v$1Q3AeF37dbXk,.)vj#x'd`;qgbQR%FW,2(?LO=s%Sc68%NP'##Aotl8x=BE#j1UD([3$M(]UI2LX3RpKN@;/#f'f/&_mt&F)XdF<9t4)Qa.*kT"
+    "LwQ'(TTB9.xH'>#MJ+gLq9-##@HuZPN0]u:h7.T..G:;$/Usj(T7`Q8tT72LnYl<-qx8;-HV7Q-&Xdx%1a,hC=0u+HlsV>nuIQL-5<N?)NBS)QN*_I,?&)2'IM%L3I)X((e/dl2&8'<M"
+    ":^#M*Q+[T.Xri.LYS3v%fF`68h;b-X[/En'CR.q7E)p'/kle2HM,u;^%OKC-N+Ll%F9CF<Nf'^#t2L,;27W:0O@6##U6W7:$rJfLWHj$#)woqBefIZ.PK<b*t7ed;p*_m;4ExK#h@&]>"
+    "_>@kXQtMacfD.m-VAb8;IReM3$wf0''hra*so568'Ip&vRs849'MRYSp%:t:h5qSgwpEr$B>Q,;s(C#$)`svQuF$##-D,##,g68@2[T;.XSdN9Qe)rpt._K-#5wF)sP'##p#C0c%-Gb%"
+    "hd+<-j'Ai*x&&HMkT]C'OSl##5RG[JXaHN;d'uA#x._U;.`PU@(Z3dt4r152@:v,'R.Sj'w#0<-;kPI)FfJ&#AYJ&#//)>-k=m=*XnK$>=)72L]0I%>.G690a:$##<,);?;72#?x9+d;"
+    "^V'9;jY@;)br#q^YQpx:X#Te$Z^'=-=bGhLf:D6&bNwZ9-ZD#n^9HhLMr5G;']d&6'wYmTFmL<LD)F^%[tC'8;+9E#C$g%#5Y>q9wI>P(9mI[>kC-ekLC/R&CH+s'B;K-M6$EB%is00:"
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+    "9s<L<NFSo)B?+<-(GxsF,^-Eh@$4dXhN$+#rxK8'je'D7k`e;)2pYwPA'_p9&@^18ml1^[@g4t*[JOa*[=Qp7(qJ_oOL^('7fB&Hq-:sf,sNj8xq^>$U4O]GKx'm9)b@p7YsvK3w^YR-"
+    "CdQ*:Ir<($u&)#(&?L9Rg3H)4fiEp^iI9O8KnTj,]H?D*r7'M;PwZ9K0E^k&-cpI;.p/6_vwoFMV<->#%Xi.LxVnrU(4&8/P+:hLSKj$#U%]49t'I:rgMi'FL@a:0Y-uA[39',(vbma*"
+    "hU%<-SRF`Tt:542R_VV$p@[p8DV[A,?1839FWdF<TddF<9Ah-6&9tWoDlh]&1SpGMq>Ti1O*H&#(AL8[_P%.M>v^-))qOT*F5Cq0`Ye%+$B6i:7@0IX<N+T+0MlMBPQ*Vj>SsD<U4JHY"
+    "8kD2)2fU/M#$e.)T4,_=8hLim[&);?UkK'-x?'(:siIfL<$pFM`i<?%W(mGDHM%>iWP,##P`%/L<eXi:@Z9C.7o=@(pXdAO/NLQ8lPl+HPOQa8wD8=^GlPa8TKI1CjhsCTSLJM'/Wl>-"
+    "S(qw%sf/@%#B6;/U7K]uZbi^Oc^2n<bhPmUkMw>%t<)'mEVE''n`WnJra$^TKvX5B>;_aSEK',(hwa0:i4G?.Bci.(X[?b*($,=-n<.Q%`(X=?+@Am*Js0&=3bh8K]mL<LoNs'6,'85`"
+    "0?t/'_U59@]ddF<#LdF<eWdF<OuN/45rY<-L@&#+fm>69=Lb,OcZV/);TTm8VI;?%OtJ<(b4mq7M6:u?KRdF<gR@2L=FNU-<b[(9c/ML3m;Z[$oF3g)GAWqpARc=<ROu7cL5l;-[A]%/"
+    "+fsd;l#SafT/f*W]0=O'$(Tb<[)*@e775R-:Yob%g*>l*:xP?Yb.5)%w_I?7uk5JC+FS(m#i'k.'a0i)9<7b'fs'59hq$*5Uhv##pi^8+hIEBF`nvo`;'l0.^S1<-wUK2/Coh58KKhLj"
+    "M=SO*rfO`+qC`W-On.=AJ56>>i2@2LH6A:&5q`?9I3@@'04&p2/LVa*T-4<-i3;M9UvZd+N7>b*eIwg:CC)c<>nO&#<IGe;__.thjZl<%w(Wk2xmp4Q@I#I9,DF]u7-P=.-_:YJ]aS@V"
+    "?6*C()dOp7:WL,b&3Rg/.cmM9&r^>$(>.Z-I&J(Q0Hd5Q%7Co-b`-c<N(6r@ip+AurK<m86QIth*#v;-OBqi+L7wDE-Ir8K['m+DDSLwK&/.?-V%U_%3:qKNu$_b*B-kp7NaD'QdWQPK"
+    "Yq[@>P)hI;*_F]u`Rb[.j8_Q/<&>uu+VsH$sM9TA%?)(vmJ80),P7E>)tjD%2L=-t#fK[%`v=Q8<FfNkgg^oIbah*#8/Qt$F&:K*-(N/'+1vMB,u()-a.VUU*#[e%gAAO(S>WlA2);Sa"
+    ">gXm8YB`1d@K#n]76-a$U,mF<fX]idqd)<3,]J7JmW4`6]uks=4-72L(jEk+:bJ0M^q-8Dm_Z?0olP1C9Sa&H[d&c$ooQUj]Exd*3ZM@-WGW2%s',B-_M%>%Ul:#/'xoFM9QX-$.QN'>"
+    "[%$Z$uF6pA6Ki2O5:8w*vP1<-1`[G,)-m#>0`P&#eb#.3i)rtB61(o'$?X3B</R90;eZ]%Ncq;-Tl]#F>2Qft^ae_5tKL9MUe9b*sLEQ95C&`=G?@Mj=wh*'3E>=-<)Gt*Iw)'QG:`@I"
+    "wOf7&]1i'S01B+Ev/Nac#9S;=;YQpg_6U`*kVY39xK,[/6Aj7:'1Bm-_1EYfa1+o&o4hp7KN_Q(OlIo@S%;jVdn0'1<Vc52=u`3^o-n1'g4v58Hj&6_t7$##?M)c<$bgQ_'SY((-xkA#"
+    "Y(,p'H9rIVY-b,'%bCPF7.J<Up^,(dU1VY*5#WkTU>h19w,WQhLI)3S#f$2(eb,jr*b;3Vw]*7NH%$c4Vs,eD9>XW8?N]o+(*pgC%/72LV-u<Hp,3@e^9UB1J+ak9-TN/mhKPg+AJYd$"
+    "MlvAF_jCK*.O-^(63adMT->W%iewS8W6m2rtCpo'RS1R84=@paTKt)>=%&1[)*vp'u+x,VrwN;&]kuO9JDbg=pO$J*.jVe;u'm0dr9l,<*wMK*Oe=g8lV_KEBFkO'oU]^=[-792#ok,)"
+    "i]lR8qQ2oA8wcRCZ^7w/Njh;?.stX?Q1>S1q4Bn$)K1<-rGdO'$Wr.Lc.CG)$/*JL4tNR/,SVO3,aUw'DJN:)Ss;wGn9A32ijw%FL+Z0Fn.U9;reSq)bmI32U==5ALuG&#Vf1398/pVo"
+    "1*c-(aY168o<`JsSbk-,1N;$>0:OUas(3:8Z972LSfF8eb=c-;>SPw7.6hn3m`9^Xkn(r.qS[0;T%&Qc=+STRxX'q1BNk3&*eu2;&8q$&x>Q#Q7^Tf+6<(d%ZVmj2bDi%.3L2n+4W'$P"
+    "iDDG)g,r%+?,$@?uou5tSe2aN_AQU*<h`e-GI7)?OK2A.d7_c)?wQ5AS@DL3r#7fSkgl6-++D:'A,uq7SvlB$pcpH'q3n0#_%dY#xCpr-l<F0NR@-##FEV6NTF6##$l84N1w?AO>'IAO"
+    "URQ##V^Fv-XFbGM7Fl(N<3DhLGF%q.1rC$#:T__&Pi68%0xi_&[qFJ(77j_&JWoF.V735&T,[R*:xFR*K5>>#`bW-?4Ne_&6Ne_&6Ne_&n`kr-#GJcM6X;uM6X;uM(.a..^2TkL%oR(#"
+    ";u.T%fAr%4tJ8&><1=GHZ_+m9/#H1F^R#SC#*N=BA9(D?v[UiFY>>^8p,KKF.W]L29uLkLlu/+4T<XoIB&hx=T1PcDaB&;HH+-AFr?(m9HZV)FKS8JCw;SD=6[^/DZUL`EUDf]GGlG&>"
+    "w$)F./^n3+rlo+DB;5sIYGNk+i1t-69Jg--0pao7Sm#K)pdHW&;LuDNH@H>#/X-TI(;P>#,Gc>#0Su>#4`1?#8lC?#<xU?#@.i?#D:%@#HF7@#LRI@#P_[@#Tkn@#Xw*A#]-=A#a9OA#"
+    "d<F&#*;G##.GY##2Sl##6`($#:l:$#>xL$#B.`$#F:r$#JF.%#NR@%#R_R%#Vke%#Zww%#_-4&#3^Rh%Sflr-k'MS.o?.5/sWel/wpEM0%3'/1)K^f1-d>G21&v(35>V`39V7A4=onx4"
+    "A1OY5EI0;6Ibgr6M$HS7Q<)58C5w,;WoA*#[%T*#`1g*#d=#+#hI5+#lUG+#pbY+#tnl+#x$),#&1;,#*=M,#.I`,#2Ur,#6b.-#;w[H#iQtA#m^0B#qjBB#uvTB##-hB#'9$C#+E6C#"
+    "/QHC#3^ZC#7jmC#;v)D#?,<D#C8ND#GDaD#KPsD#O]/E#g1A5#KA*1#gC17#MGd;#8(02#L-d3#rWM4#Hga1#,<w0#T.j<#O#'2#CYN1#qa^:#_4m3#o@/=#eG8=#t8J5#`+78#4uI-#"
+    "m3B2#SB[8#Q0@8#i[*9#iOn8#1Nm;#^sN9#qh<9#:=x-#P;K2#$%X9#bC+.#Rg;<#mN=.#MTF.#RZO.#2?)4#Y#(/#[)1/#b;L/#dAU/#0Sv;#lY$0#n`-0#sf60#(F24#wrH0#%/e0#"
+    "TmD<#%JSMFove:CTBEXI:<eh2g)B,3h2^G3i;#d3jD>)4kMYD4lVu`4m`:&5niUA5@(A5BA1]PBB:xlBCC=2CDLXMCEUtiCf&0g2'tN?PGT4CPGT4CPGT4CPGT4CPGT4CPGT4CPGT4CP"
+    "GT4CPGT4CPGT4CPGT4CPGT4CPGT4CP-qekC`.9kEg^+F$kwViFJTB&5KTB&5KTB&5KTB&5KTB&5KTB&5KTB&5KTB&5KTB&5KTB&5KTB&5KTB&5KTB&5KTB&5KTB&5o,^<-28ZI'O?;xp"
+    "O?;xpO?;xpO?;xpO?;xpO?;xpO?;xpO?;xpO?;xpO?;xpO?;xpO?;xpO?;xpO?;xp;7q-#lLYI:xvD=#";
+
+static const char* GetDefaultCompressedFontDataTTFBase85()
+{
+    return proggy_clean_ttf_compressed_data_base85;
+}
+
+#endif // #ifndef IMGUI_DISABLE
diff --git a/tests/manual/rhi/shared/imgui/imgui/imgui_internal.h b/tests/manual/rhi/shared/imgui/imgui/imgui_internal.h
new file mode 100644
index 00000000..81d41fd7
--- /dev/null
+++ b/tests/manual/rhi/shared/imgui/imgui/imgui_internal.h
@@ -0,0 +1,2975 @@
+// dear imgui, v1.88
+// (internal structures/api)
+
+// You may use this file to debug, understand or extend ImGui features but we don't provide any guarantee of forward compatibility!
+// Set:
+//   #define IMGUI_DEFINE_MATH_OPERATORS
+// To implement maths operators for ImVec2 (disabled by default to not collide with using IM_VEC2_CLASS_EXTRA along with your own math types+operators)
+
+/*
+
+Index of this file:
+
+// [SECTION] Header mess
+// [SECTION] Forward declarations
+// [SECTION] Context pointer
+// [SECTION] STB libraries includes
+// [SECTION] Macros
+// [SECTION] Generic helpers
+// [SECTION] ImDrawList support
+// [SECTION] Widgets support: flags, enums, data structures
+// [SECTION] Inputs support
+// [SECTION] Clipper support
+// [SECTION] Navigation support
+// [SECTION] Columns support
+// [SECTION] Multi-select support
+// [SECTION] Docking support
+// [SECTION] Viewport support
+// [SECTION] Settings support
+// [SECTION] Metrics, Debug tools
+// [SECTION] Generic context hooks
+// [SECTION] ImGuiContext (main imgui context)
+// [SECTION] ImGuiWindowTempData, ImGuiWindow
+// [SECTION] Tab bar, Tab item support
+// [SECTION] Table support
+// [SECTION] ImGui internal API
+// [SECTION] ImFontAtlas internal API
+// [SECTION] Test Engine specific hooks (imgui_test_engine)
+
+*/
+
+#pragma once
+#ifndef IMGUI_DISABLE
+
+//-----------------------------------------------------------------------------
+// [SECTION] Header mess
+//-----------------------------------------------------------------------------
+
+#ifndef IMGUI_VERSION
+#include "imgui.h"
+#endif
+
+#include <stdio.h>      // FILE*, sscanf
+#include <stdlib.h>     // NULL, malloc, free, qsort, atoi, atof
+#include <math.h>       // sqrtf, fabsf, fmodf, powf, floorf, ceilf, cosf, sinf
+#include <limits.h>     // INT_MIN, INT_MAX
+
+// Enable SSE intrinsics if available
+#if (defined __SSE__ || defined __x86_64__ || defined _M_X64) && !defined(IMGUI_DISABLE_SSE)
+#define IMGUI_ENABLE_SSE
+#include <immintrin.h>
+#endif
+
+// Visual Studio warnings
+#ifdef _MSC_VER
+#pragma warning (push)
+#pragma warning (disable: 4251)     // class 'xxx' needs to have dll-interface to be used by clients of struct 'xxx' // when IMGUI_API is set to__declspec(dllexport)
+#pragma warning (disable: 26812)    // The enum type 'xxx' is unscoped. Prefer 'enum class' over 'enum' (Enum.3). [MSVC Static Analyzer)
+#pragma warning (disable: 26495)    // [Static Analyzer] Variable 'XXX' is uninitialized. Always initialize a member variable (type.6).
+#if defined(_MSC_VER) && _MSC_VER >= 1922 // MSVC 2019 16.2 or later
+#pragma warning (disable: 5054)     // operator '|': deprecated between enumerations of different types
+#endif
+#endif
+
+// Clang/GCC warnings with -Weverything
+#if defined(__clang__)
+#pragma clang diagnostic push
+#if __has_warning("-Wunknown-warning-option")
+#pragma clang diagnostic ignored "-Wunknown-warning-option"         // warning: unknown warning group 'xxx'
+#endif
+#pragma clang diagnostic ignored "-Wunknown-pragmas"                // warning: unknown warning group 'xxx'
+#pragma clang diagnostic ignored "-Wfloat-equal"                    // warning: comparing floating point with == or != is unsafe // storing and comparing against same constants ok, for ImFloorSigned()
+#pragma clang diagnostic ignored "-Wunused-function"                // for stb_textedit.h
+#pragma clang diagnostic ignored "-Wmissing-prototypes"             // for stb_textedit.h
+#pragma clang diagnostic ignored "-Wold-style-cast"
+#pragma clang diagnostic ignored "-Wzero-as-null-pointer-constant"
+#pragma clang diagnostic ignored "-Wdouble-promotion"
+#pragma clang diagnostic ignored "-Wimplicit-int-float-conversion"  // warning: implicit conversion from 'xxx' to 'float' may lose precision
+#pragma clang diagnostic ignored "-Wmissing-noreturn"               // warning: function 'xxx' could be declared with attribute 'noreturn'
+#elif defined(__GNUC__)
+#pragma GCC diagnostic push
+#pragma GCC diagnostic ignored "-Wpragmas"              // warning: unknown option after '#pragma GCC diagnostic' kind
+#pragma GCC diagnostic ignored "-Wclass-memaccess"      // [__GNUC__ >= 8] warning: 'memset/memcpy' clearing/writing an object of type 'xxxx' with no trivial copy-assignment; use assignment or value-initialization instead
+#endif
+
+// Legacy defines
+#ifdef IMGUI_DISABLE_FORMAT_STRING_FUNCTIONS            // Renamed in 1.74
+#error Use IMGUI_DISABLE_DEFAULT_FORMAT_FUNCTIONS
+#endif
+#ifdef IMGUI_DISABLE_MATH_FUNCTIONS                     // Renamed in 1.74
+#error Use IMGUI_DISABLE_DEFAULT_MATH_FUNCTIONS
+#endif
+
+// Enable stb_truetype by default unless FreeType is enabled.
+// You can compile with both by defining both IMGUI_ENABLE_FREETYPE and IMGUI_ENABLE_STB_TRUETYPE together.
+#ifndef IMGUI_ENABLE_FREETYPE
+#define IMGUI_ENABLE_STB_TRUETYPE
+#endif
+
+//-----------------------------------------------------------------------------
+// [SECTION] Forward declarations
+//-----------------------------------------------------------------------------
+
+struct ImBitVector;                 // Store 1-bit per value
+struct ImRect;                      // An axis-aligned rectangle (2 points)
+struct ImDrawDataBuilder;           // Helper to build a ImDrawData instance
+struct ImDrawListSharedData;        // Data shared between all ImDrawList instances
+struct ImGuiColorMod;               // Stacked color modifier, backup of modified data so we can restore it
+struct ImGuiContext;                // Main Dear ImGui context
+struct ImGuiContextHook;            // Hook for extensions like ImGuiTestEngine
+struct ImGuiDataTypeInfo;           // Type information associated to a ImGuiDataType enum
+struct ImGuiGroupData;              // Stacked storage data for BeginGroup()/EndGroup()
+struct ImGuiInputTextState;         // Internal state of the currently focused/edited text input box
+struct ImGuiLastItemData;           // Status storage for last submitted items
+struct ImGuiMenuColumns;            // Simple column measurement, currently used for MenuItem() only
+struct ImGuiNavItemData;            // Result of a gamepad/keyboard directional navigation move query result
+struct ImGuiMetricsConfig;          // Storage for ShowMetricsWindow() and DebugNodeXXX() functions
+struct ImGuiNextWindowData;         // Storage for SetNextWindow** functions
+struct ImGuiNextItemData;           // Storage for SetNextItem** functions
+struct ImGuiOldColumnData;          // Storage data for a single column for legacy Columns() api
+struct ImGuiOldColumns;             // Storage data for a columns set for legacy Columns() api
+struct ImGuiPopupData;              // Storage for current popup stack
+struct ImGuiSettingsHandler;        // Storage for one type registered in the .ini file
+struct ImGuiStackSizes;             // Storage of stack sizes for debugging/asserting
+struct ImGuiStyleMod;               // Stacked style modifier, backup of modified data so we can restore it
+struct ImGuiTabBar;                 // Storage for a tab bar
+struct ImGuiTabItem;                // Storage for a tab item (within a tab bar)
+struct ImGuiTable;                  // Storage for a table
+struct ImGuiTableColumn;            // Storage for one column of a table
+struct ImGuiTableInstanceData;      // Storage for one instance of a same table
+struct ImGuiTableTempData;          // Temporary storage for one table (one per table in the stack), shared between tables.
+struct ImGuiTableSettings;          // Storage for a table .ini settings
+struct ImGuiTableColumnsSettings;   // Storage for a column .ini settings
+struct ImGuiWindow;                 // Storage for one window
+struct ImGuiWindowTempData;         // Temporary storage for one window (that's the data which in theory we could ditch at the end of the frame, in practice we currently keep it for each window)
+struct ImGuiWindowSettings;         // Storage for a window .ini settings (we keep one of those even if the actual window wasn't instanced during this session)
+
+// Use your programming IDE "Go to definition" facility on the names of the center columns to find the actual flags/enum lists.
+typedef int ImGuiLayoutType;            // -> enum ImGuiLayoutType_         // Enum: Horizontal or vertical
+typedef int ImGuiActivateFlags;         // -> enum ImGuiActivateFlags_      // Flags: for navigation/focus function (will be for ActivateItem() later)
+typedef int ImGuiDebugLogFlags;         // -> enum ImGuiDebugLogFlags_      // Flags: for ShowDebugLogWindow(), g.DebugLogFlags
+typedef int ImGuiItemFlags;             // -> enum ImGuiItemFlags_          // Flags: for PushItemFlag()
+typedef int ImGuiItemStatusFlags;       // -> enum ImGuiItemStatusFlags_    // Flags: for DC.LastItemStatusFlags
+typedef int ImGuiOldColumnFlags;        // -> enum ImGuiOldColumnFlags_     // Flags: for BeginColumns()
+typedef int ImGuiNavHighlightFlags;     // -> enum ImGuiNavHighlightFlags_  // Flags: for RenderNavHighlight()
+typedef int ImGuiNavDirSourceFlags;     // -> enum ImGuiNavDirSourceFlags_  // Flags: for GetNavInputAmount2d()
+typedef int ImGuiNavMoveFlags;          // -> enum ImGuiNavMoveFlags_       // Flags: for navigation requests
+typedef int ImGuiNextItemDataFlags;     // -> enum ImGuiNextItemDataFlags_  // Flags: for SetNextItemXXX() functions
+typedef int ImGuiNextWindowDataFlags;   // -> enum ImGuiNextWindowDataFlags_// Flags: for SetNextWindowXXX() functions
+typedef int ImGuiScrollFlags;           // -> enum ImGuiScrollFlags_        // Flags: for ScrollToItem() and navigation requests
+typedef int ImGuiSeparatorFlags;        // -> enum ImGuiSeparatorFlags_     // Flags: for SeparatorEx()
+typedef int ImGuiTextFlags;             // -> enum ImGuiTextFlags_          // Flags: for TextEx()
+typedef int ImGuiTooltipFlags;          // -> enum ImGuiTooltipFlags_       // Flags: for BeginTooltipEx()
+
+typedef void (*ImGuiErrorLogCallback)(void* user_data, const char* fmt, ...);
+
+//-----------------------------------------------------------------------------
+// [SECTION] Context pointer
+// See implementation of this variable in imgui.cpp for comments and details.
+//-----------------------------------------------------------------------------
+
+#ifndef GImGui
+extern IMGUI_API ImGuiContext* GImGui;  // Current implicit context pointer
+#endif
+
+//-------------------------------------------------------------------------
+// [SECTION] STB libraries includes
+//-------------------------------------------------------------------------
+
+namespace ImStb
+{
+
+#undef STB_TEXTEDIT_STRING
+#undef STB_TEXTEDIT_CHARTYPE
+#define STB_TEXTEDIT_STRING             ImGuiInputTextState
+#define STB_TEXTEDIT_CHARTYPE           ImWchar
+#define STB_TEXTEDIT_GETWIDTH_NEWLINE   (-1.0f)
+#define STB_TEXTEDIT_UNDOSTATECOUNT     99
+#define STB_TEXTEDIT_UNDOCHARCOUNT      999
+#include "imstb_textedit.h"
+
+} // namespace ImStb
+
+//-----------------------------------------------------------------------------
+// [SECTION] Macros
+//-----------------------------------------------------------------------------
+
+// Debug Printing Into TTY
+// (since IMGUI_VERSION_NUM >= 18729: IMGUI_DEBUG_LOG was reworked into IMGUI_DEBUG_PRINTF (and removed framecount from it). If you were using a #define IMGUI_DEBUG_LOG please rename)
+#ifndef IMGUI_DEBUG_PRINTF
+#ifndef IMGUI_DISABLE_DEFAULT_FORMAT_FUNCTIONS
+#define IMGUI_DEBUG_PRINTF(_FMT,...)    printf(_FMT, __VA_ARGS__)
+#else
+#define IMGUI_DEBUG_PRINTF(_FMT,...)
+#endif
+#endif
+
+// Debug Logging for ShowDebugLogWindow(). This is designed for relatively rare events so please don't spam.
+#define IMGUI_DEBUG_LOG(...)            ImGui::DebugLog(__VA_ARGS__);
+#define IMGUI_DEBUG_LOG_ACTIVEID(...)   do { if (g.DebugLogFlags & ImGuiDebugLogFlags_EventActiveId) IMGUI_DEBUG_LOG(__VA_ARGS__); } while (0)
+#define IMGUI_DEBUG_LOG_FOCUS(...)      do { if (g.DebugLogFlags & ImGuiDebugLogFlags_EventFocus)    IMGUI_DEBUG_LOG(__VA_ARGS__); } while (0)
+#define IMGUI_DEBUG_LOG_POPUP(...)      do { if (g.DebugLogFlags & ImGuiDebugLogFlags_EventPopup)    IMGUI_DEBUG_LOG(__VA_ARGS__); } while (0)
+#define IMGUI_DEBUG_LOG_NAV(...)        do { if (g.DebugLogFlags & ImGuiDebugLogFlags_EventNav)      IMGUI_DEBUG_LOG(__VA_ARGS__); } while (0)
+#define IMGUI_DEBUG_LOG_IO(...)         do { if (g.DebugLogFlags & ImGuiDebugLogFlags_EventIO)       IMGUI_DEBUG_LOG(__VA_ARGS__); } while (0)
+
+// Static Asserts
+#define IM_STATIC_ASSERT(_COND)         static_assert(_COND, "")
+
+// "Paranoid" Debug Asserts are meant to only be enabled during specific debugging/work, otherwise would slow down the code too much.
+// We currently don't have many of those so the effect is currently negligible, but onward intent to add more aggressive ones in the code.
+//#define IMGUI_DEBUG_PARANOID
+#ifdef IMGUI_DEBUG_PARANOID
+#define IM_ASSERT_PARANOID(_EXPR)       IM_ASSERT(_EXPR)
+#else
+#define IM_ASSERT_PARANOID(_EXPR)
+#endif
+
+// Error handling
+// Down the line in some frameworks/languages we would like to have a way to redirect those to the programmer and recover from more faults.
+#ifndef IM_ASSERT_USER_ERROR
+#define IM_ASSERT_USER_ERROR(_EXP,_MSG) IM_ASSERT((_EXP) && _MSG)   // Recoverable User Error
+#endif
+
+// Misc Macros
+#define IM_PI                           3.14159265358979323846f
+#ifdef _WIN32
+#define IM_NEWLINE                      "\r\n"   // Play it nice with Windows users (Update: since 2018-05, Notepad finally appears to support Unix-style carriage returns!)
+#else
+#define IM_NEWLINE                      "\n"
+#endif
+#define IM_TABSIZE                      (4)
+#define IM_MEMALIGN(_OFF,_ALIGN)        (((_OFF) + ((_ALIGN) - 1)) & ~((_ALIGN) - 1))           // Memory align e.g. IM_ALIGN(0,4)=0, IM_ALIGN(1,4)=4, IM_ALIGN(4,4)=4, IM_ALIGN(5,4)=8
+#define IM_F32_TO_INT8_UNBOUND(_VAL)    ((int)((_VAL) * 255.0f + ((_VAL)>=0 ? 0.5f : -0.5f)))   // Unsaturated, for display purpose
+#define IM_F32_TO_INT8_SAT(_VAL)        ((int)(ImSaturate(_VAL) * 255.0f + 0.5f))               // Saturated, always output 0..255
+#define IM_FLOOR(_VAL)                  ((float)(int)(_VAL))                                    // ImFloor() is not inlined in MSVC debug builds
+#define IM_ROUND(_VAL)                  ((float)(int)((_VAL) + 0.5f))                           //
+
+// Enforce cdecl calling convention for functions called by the standard library, in case compilation settings changed the default to e.g. __vectorcall
+#ifdef _MSC_VER
+#define IMGUI_CDECL __cdecl
+#else
+#define IMGUI_CDECL
+#endif
+
+// Warnings
+#if defined(_MSC_VER) && !defined(__clang__)
+#define IM_MSVC_WARNING_SUPPRESS(XXXX)  __pragma(warning(suppress: XXXX))
+#else
+#define IM_MSVC_WARNING_SUPPRESS(XXXX)
+#endif
+
+// Debug Tools
+// Use 'Metrics/Debugger->Tools->Item Picker' to break into the call-stack of a specific item.
+// This will call IM_DEBUG_BREAK() which you may redefine yourself. See https://github.com/scottt/debugbreak for more reference.
+#ifndef IM_DEBUG_BREAK
+#if defined (_MSC_VER)
+#define IM_DEBUG_BREAK()    __debugbreak()
+#elif defined(__clang__)
+#define IM_DEBUG_BREAK()    __builtin_debugtrap()
+#elif defined(__GNUC__) && (defined(__i386__) || defined(__x86_64__))
+#define IM_DEBUG_BREAK()    __asm__ volatile("int $0x03")
+#elif defined(__GNUC__) && defined(__thumb__)
+#define IM_DEBUG_BREAK()    __asm__ volatile(".inst 0xde01")
+#elif defined(__GNUC__) && defined(__arm__) && !defined(__thumb__)
+#define IM_DEBUG_BREAK()    __asm__ volatile(".inst 0xe7f001f0");
+#else
+#define IM_DEBUG_BREAK()    IM_ASSERT(0)    // It is expected that you define IM_DEBUG_BREAK() into something that will break nicely in a debugger!
+#endif
+#endif // #ifndef IM_DEBUG_BREAK
+
+//-----------------------------------------------------------------------------
+// [SECTION] Generic helpers
+// Note that the ImXXX helpers functions are lower-level than ImGui functions.
+// ImGui functions or the ImGui context are never called/used from other ImXXX functions.
+//-----------------------------------------------------------------------------
+// - Helpers: Hashing
+// - Helpers: Sorting
+// - Helpers: Bit manipulation
+// - Helpers: String
+// - Helpers: Formatting
+// - Helpers: UTF-8 <> wchar conversions
+// - Helpers: ImVec2/ImVec4 operators
+// - Helpers: Maths
+// - Helpers: Geometry
+// - Helper: ImVec1
+// - Helper: ImVec2ih
+// - Helper: ImRect
+// - Helper: ImBitArray
+// - Helper: ImBitVector
+// - Helper: ImSpan<>, ImSpanAllocator<>
+// - Helper: ImPool<>
+// - Helper: ImChunkStream<>
+//-----------------------------------------------------------------------------
+
+// Helpers: Hashing
+IMGUI_API ImGuiID       ImHashData(const void* data, size_t data_size, ImU32 seed = 0);
+IMGUI_API ImGuiID       ImHashStr(const char* data, size_t data_size = 0, ImU32 seed = 0);
+
+// Helpers: Sorting
+#ifndef ImQsort
+static inline void      ImQsort(void* base, size_t count, size_t size_of_element, int(IMGUI_CDECL *compare_func)(void const*, void const*)) { if (count > 1) qsort(base, count, size_of_element, compare_func); }
+#endif
+
+// Helpers: Color Blending
+IMGUI_API ImU32         ImAlphaBlendColors(ImU32 col_a, ImU32 col_b);
+
+// Helpers: Bit manipulation
+static inline bool      ImIsPowerOfTwo(int v)           { return v != 0 && (v & (v - 1)) == 0; }
+static inline bool      ImIsPowerOfTwo(ImU64 v)         { return v != 0 && (v & (v - 1)) == 0; }
+static inline int       ImUpperPowerOfTwo(int v)        { v--; v |= v >> 1; v |= v >> 2; v |= v >> 4; v |= v >> 8; v |= v >> 16; v++; return v; }
+
+// Helpers: String
+IMGUI_API int           ImStricmp(const char* str1, const char* str2);
+IMGUI_API int           ImStrnicmp(const char* str1, const char* str2, size_t count);
+IMGUI_API void          ImStrncpy(char* dst, const char* src, size_t count);
+IMGUI_API char*         ImStrdup(const char* str);
+IMGUI_API char*         ImStrdupcpy(char* dst, size_t* p_dst_size, const char* str);
+IMGUI_API const char*   ImStrchrRange(const char* str_begin, const char* str_end, char c);
+IMGUI_API int           ImStrlenW(const ImWchar* str);
+IMGUI_API const char*   ImStreolRange(const char* str, const char* str_end);                // End end-of-line
+IMGUI_API const ImWchar*ImStrbolW(const ImWchar* buf_mid_line, const ImWchar* buf_begin);   // Find beginning-of-line
+IMGUI_API const char*   ImStristr(const char* haystack, const char* haystack_end, const char* needle, const char* needle_end);
+IMGUI_API void          ImStrTrimBlanks(char* str);
+IMGUI_API const char*   ImStrSkipBlank(const char* str);
+static inline bool      ImCharIsBlankA(char c)          { return c == ' ' || c == '\t'; }
+static inline bool      ImCharIsBlankW(unsigned int c)  { return c == ' ' || c == '\t' || c == 0x3000; }
+
+// Helpers: Formatting
+IMGUI_API int           ImFormatString(char* buf, size_t buf_size, const char* fmt, ...) IM_FMTARGS(3);
+IMGUI_API int           ImFormatStringV(char* buf, size_t buf_size, const char* fmt, va_list args) IM_FMTLIST(3);
+IMGUI_API void          ImFormatStringToTempBuffer(const char** out_buf, const char** out_buf_end, const char* fmt, ...) IM_FMTARGS(3);
+IMGUI_API void          ImFormatStringToTempBufferV(const char** out_buf, const char** out_buf_end, const char* fmt, va_list args) IM_FMTLIST(3);
+IMGUI_API const char*   ImParseFormatFindStart(const char* format);
+IMGUI_API const char*   ImParseFormatFindEnd(const char* format);
+IMGUI_API const char*   ImParseFormatTrimDecorations(const char* format, char* buf, size_t buf_size);
+IMGUI_API void          ImParseFormatSanitizeForPrinting(const char* fmt_in, char* fmt_out, size_t fmt_out_size);
+IMGUI_API const char*   ImParseFormatSanitizeForScanning(const char* fmt_in, char* fmt_out, size_t fmt_out_size);
+IMGUI_API int           ImParseFormatPrecision(const char* format, int default_value);
+
+// Helpers: UTF-8 <> wchar conversions
+IMGUI_API const char*   ImTextCharToUtf8(char out_buf[5], unsigned int c);                                                      // return out_buf
+IMGUI_API int           ImTextStrToUtf8(char* out_buf, int out_buf_size, const ImWchar* in_text, const ImWchar* in_text_end);   // return output UTF-8 bytes count
+IMGUI_API int           ImTextCharFromUtf8(unsigned int* out_char, const char* in_text, const char* in_text_end);               // read one character. return input UTF-8 bytes count
+IMGUI_API int           ImTextStrFromUtf8(ImWchar* out_buf, int out_buf_size, const char* in_text, const char* in_text_end, const char** in_remaining = NULL);   // return input UTF-8 bytes count
+IMGUI_API int           ImTextCountCharsFromUtf8(const char* in_text, const char* in_text_end);                                 // return number of UTF-8 code-points (NOT bytes count)
+IMGUI_API int           ImTextCountUtf8BytesFromChar(const char* in_text, const char* in_text_end);                             // return number of bytes to express one char in UTF-8
+IMGUI_API int           ImTextCountUtf8BytesFromStr(const ImWchar* in_text, const ImWchar* in_text_end);                        // return number of bytes to express string in UTF-8
+
+// Helpers: ImVec2/ImVec4 operators
+// We are keeping those disabled by default so they don't leak in user space, to allow user enabling implicit cast operators between ImVec2 and their own types (using IM_VEC2_CLASS_EXTRA etc.)
+// We unfortunately don't have a unary- operator for ImVec2 because this would needs to be defined inside the class itself.
+#ifdef IMGUI_DEFINE_MATH_OPERATORS
+IM_MSVC_RUNTIME_CHECKS_OFF
+static inline ImVec2 operator*(const ImVec2& lhs, const float rhs)              { return ImVec2(lhs.x * rhs, lhs.y * rhs); }
+static inline ImVec2 operator/(const ImVec2& lhs, const float rhs)              { return ImVec2(lhs.x / rhs, lhs.y / rhs); }
+static inline ImVec2 operator+(const ImVec2& lhs, const ImVec2& rhs)            { return ImVec2(lhs.x + rhs.x, lhs.y + rhs.y); }
+static inline ImVec2 operator-(const ImVec2& lhs, const ImVec2& rhs)            { return ImVec2(lhs.x - rhs.x, lhs.y - rhs.y); }
+static inline ImVec2 operator*(const ImVec2& lhs, const ImVec2& rhs)            { return ImVec2(lhs.x * rhs.x, lhs.y * rhs.y); }
+static inline ImVec2 operator/(const ImVec2& lhs, const ImVec2& rhs)            { return ImVec2(lhs.x / rhs.x, lhs.y / rhs.y); }
+static inline ImVec2& operator*=(ImVec2& lhs, const float rhs)                  { lhs.x *= rhs; lhs.y *= rhs; return lhs; }
+static inline ImVec2& operator/=(ImVec2& lhs, const float rhs)                  { lhs.x /= rhs; lhs.y /= rhs; return lhs; }
+static inline ImVec2& operator+=(ImVec2& lhs, const ImVec2& rhs)                { lhs.x += rhs.x; lhs.y += rhs.y; return lhs; }
+static inline ImVec2& operator-=(ImVec2& lhs, const ImVec2& rhs)                { lhs.x -= rhs.x; lhs.y -= rhs.y; return lhs; }
+static inline ImVec2& operator*=(ImVec2& lhs, const ImVec2& rhs)                { lhs.x *= rhs.x; lhs.y *= rhs.y; return lhs; }
+static inline ImVec2& operator/=(ImVec2& lhs, const ImVec2& rhs)                { lhs.x /= rhs.x; lhs.y /= rhs.y; return lhs; }
+static inline ImVec4 operator+(const ImVec4& lhs, const ImVec4& rhs)            { return ImVec4(lhs.x + rhs.x, lhs.y + rhs.y, lhs.z + rhs.z, lhs.w + rhs.w); }
+static inline ImVec4 operator-(const ImVec4& lhs, const ImVec4& rhs)            { return ImVec4(lhs.x - rhs.x, lhs.y - rhs.y, lhs.z - rhs.z, lhs.w - rhs.w); }
+static inline ImVec4 operator*(const ImVec4& lhs, const ImVec4& rhs)            { return ImVec4(lhs.x * rhs.x, lhs.y * rhs.y, lhs.z * rhs.z, lhs.w * rhs.w); }
+IM_MSVC_RUNTIME_CHECKS_RESTORE
+#endif
+
+// Helpers: File System
+#ifdef IMGUI_DISABLE_FILE_FUNCTIONS
+#define IMGUI_DISABLE_DEFAULT_FILE_FUNCTIONS
+typedef void* ImFileHandle;
+static inline ImFileHandle  ImFileOpen(const char*, const char*)                    { return NULL; }
+static inline bool          ImFileClose(ImFileHandle)                               { return false; }
+static inline ImU64         ImFileGetSize(ImFileHandle)                             { return (ImU64)-1; }
+static inline ImU64         ImFileRead(void*, ImU64, ImU64, ImFileHandle)           { return 0; }
+static inline ImU64         ImFileWrite(const void*, ImU64, ImU64, ImFileHandle)    { return 0; }
+#endif
+#ifndef IMGUI_DISABLE_DEFAULT_FILE_FUNCTIONS
+typedef FILE* ImFileHandle;
+IMGUI_API ImFileHandle      ImFileOpen(const char* filename, const char* mode);
+IMGUI_API bool              ImFileClose(ImFileHandle file);
+IMGUI_API ImU64             ImFileGetSize(ImFileHandle file);
+IMGUI_API ImU64             ImFileRead(void* data, ImU64 size, ImU64 count, ImFileHandle file);
+IMGUI_API ImU64             ImFileWrite(const void* data, ImU64 size, ImU64 count, ImFileHandle file);
+#else
+#define IMGUI_DISABLE_TTY_FUNCTIONS // Can't use stdout, fflush if we are not using default file functions
+#endif
+IMGUI_API void*             ImFileLoadToMemory(const char* filename, const char* mode, size_t* out_file_size = NULL, int padding_bytes = 0);
+
+// Helpers: Maths
+IM_MSVC_RUNTIME_CHECKS_OFF
+// - Wrapper for standard libs functions. (Note that imgui_demo.cpp does _not_ use them to keep the code easy to copy)
+#ifndef IMGUI_DISABLE_DEFAULT_MATH_FUNCTIONS
+#define ImFabs(X)           fabsf(X)
+#define ImSqrt(X)           sqrtf(X)
+#define ImFmod(X, Y)        fmodf((X), (Y))
+#define ImCos(X)            cosf(X)
+#define ImSin(X)            sinf(X)
+#define ImAcos(X)           acosf(X)
+#define ImAtan2(Y, X)       atan2f((Y), (X))
+#define ImAtof(STR)         atof(STR)
+//#define ImFloorStd(X)     floorf(X)           // We use our own, see ImFloor() and ImFloorSigned()
+#define ImCeil(X)           ceilf(X)
+static inline float  ImPow(float x, float y)    { return powf(x, y); }          // DragBehaviorT/SliderBehaviorT uses ImPow with either float/double and need the precision
+static inline double ImPow(double x, double y)  { return pow(x, y); }
+static inline float  ImLog(float x)             { return logf(x); }             // DragBehaviorT/SliderBehaviorT uses ImLog with either float/double and need the precision
+static inline double ImLog(double x)            { return log(x); }
+static inline int    ImAbs(int x)               { return x < 0 ? -x : x; }
+static inline float  ImAbs(float x)             { return fabsf(x); }
+static inline double ImAbs(double x)            { return fabs(x); }
+static inline float  ImSign(float x)            { return (x < 0.0f) ? -1.0f : (x > 0.0f) ? 1.0f : 0.0f; } // Sign operator - returns -1, 0 or 1 based on sign of argument
+static inline double ImSign(double x)           { return (x < 0.0) ? -1.0 : (x > 0.0) ? 1.0 : 0.0; }
+#ifdef IMGUI_ENABLE_SSE
+static inline float  ImRsqrt(float x)           { return _mm_cvtss_f32(_mm_rsqrt_ss(_mm_set_ss(x))); }
+#else
+static inline float  ImRsqrt(float x)           { return 1.0f / sqrtf(x); }
+#endif
+static inline double ImRsqrt(double x)          { return 1.0 / sqrt(x); }
+#endif
+// - ImMin/ImMax/ImClamp/ImLerp/ImSwap are used by widgets which support variety of types: signed/unsigned int/long long float/double
+// (Exceptionally using templates here but we could also redefine them for those types)
+template<typename T> static inline T ImMin(T lhs, T rhs)                        { return lhs < rhs ? lhs : rhs; }
+template<typename T> static inline T ImMax(T lhs, T rhs)                        { return lhs >= rhs ? lhs : rhs; }
+template<typename T> static inline T ImClamp(T v, T mn, T mx)                   { return (v < mn) ? mn : (v > mx) ? mx : v; }
+template<typename T> static inline T ImLerp(T a, T b, float t)                  { return (T)(a + (b - a) * t); }
+template<typename T> static inline void ImSwap(T& a, T& b)                      { T tmp = a; a = b; b = tmp; }
+template<typename T> static inline T ImAddClampOverflow(T a, T b, T mn, T mx)   { if (b < 0 && (a < mn - b)) return mn; if (b > 0 && (a > mx - b)) return mx; return a + b; }
+template<typename T> static inline T ImSubClampOverflow(T a, T b, T mn, T mx)   { if (b > 0 && (a < mn + b)) return mn; if (b < 0 && (a > mx + b)) return mx; return a - b; }
+// - Misc maths helpers
+static inline ImVec2 ImMin(const ImVec2& lhs, const ImVec2& rhs)                { return ImVec2(lhs.x < rhs.x ? lhs.x : rhs.x, lhs.y < rhs.y ? lhs.y : rhs.y); }
+static inline ImVec2 ImMax(const ImVec2& lhs, const ImVec2& rhs)                { return ImVec2(lhs.x >= rhs.x ? lhs.x : rhs.x, lhs.y >= rhs.y ? lhs.y : rhs.y); }
+static inline ImVec2 ImClamp(const ImVec2& v, const ImVec2& mn, ImVec2 mx)      { return ImVec2((v.x < mn.x) ? mn.x : (v.x > mx.x) ? mx.x : v.x, (v.y < mn.y) ? mn.y : (v.y > mx.y) ? mx.y : v.y); }
+static inline ImVec2 ImLerp(const ImVec2& a, const ImVec2& b, float t)          { return ImVec2(a.x + (b.x - a.x) * t, a.y + (b.y - a.y) * t); }
+static inline ImVec2 ImLerp(const ImVec2& a, const ImVec2& b, const ImVec2& t)  { return ImVec2(a.x + (b.x - a.x) * t.x, a.y + (b.y - a.y) * t.y); }
+static inline ImVec4 ImLerp(const ImVec4& a, const ImVec4& b, float t)          { return ImVec4(a.x + (b.x - a.x) * t, a.y + (b.y - a.y) * t, a.z + (b.z - a.z) * t, a.w + (b.w - a.w) * t); }
+static inline float  ImSaturate(float f)                                        { return (f < 0.0f) ? 0.0f : (f > 1.0f) ? 1.0f : f; }
+static inline float  ImLengthSqr(const ImVec2& lhs)                             { return (lhs.x * lhs.x) + (lhs.y * lhs.y); }
+static inline float  ImLengthSqr(const ImVec4& lhs)                             { return (lhs.x * lhs.x) + (lhs.y * lhs.y) + (lhs.z * lhs.z) + (lhs.w * lhs.w); }
+static inline float  ImInvLength(const ImVec2& lhs, float fail_value)           { float d = (lhs.x * lhs.x) + (lhs.y * lhs.y); if (d > 0.0f) return ImRsqrt(d); return fail_value; }
+static inline float  ImFloor(float f)                                           { return (float)(int)(f); }
+static inline float  ImFloorSigned(float f)                                     { return (float)((f >= 0 || (float)(int)f == f) ? (int)f : (int)f - 1); } // Decent replacement for floorf()
+static inline ImVec2 ImFloor(const ImVec2& v)                                   { return ImVec2((float)(int)(v.x), (float)(int)(v.y)); }
+static inline ImVec2 ImFloorSigned(const ImVec2& v)                             { return ImVec2(ImFloorSigned(v.x), ImFloorSigned(v.y)); }
+static inline int    ImModPositive(int a, int b)                                { return (a + b) % b; }
+static inline float  ImDot(const ImVec2& a, const ImVec2& b)                    { return a.x * b.x + a.y * b.y; }
+static inline ImVec2 ImRotate(const ImVec2& v, float cos_a, float sin_a)        { return ImVec2(v.x * cos_a - v.y * sin_a, v.x * sin_a + v.y * cos_a); }
+static inline float  ImLinearSweep(float current, float target, float speed)    { if (current < target) return ImMin(current + speed, target); if (current > target) return ImMax(current - speed, target); return current; }
+static inline ImVec2 ImMul(const ImVec2& lhs, const ImVec2& rhs)                { return ImVec2(lhs.x * rhs.x, lhs.y * rhs.y); }
+static inline bool   ImIsFloatAboveGuaranteedIntegerPrecision(float f)          { return f <= -16777216 || f >= 16777216; }
+IM_MSVC_RUNTIME_CHECKS_RESTORE
+
+// Helpers: Geometry
+IMGUI_API ImVec2     ImBezierCubicCalc(const ImVec2& p1, const ImVec2& p2, const ImVec2& p3, const ImVec2& p4, float t);
+IMGUI_API ImVec2     ImBezierCubicClosestPoint(const ImVec2& p1, const ImVec2& p2, const ImVec2& p3, const ImVec2& p4, const ImVec2& p, int num_segments);       // For curves with explicit number of segments
+IMGUI_API ImVec2     ImBezierCubicClosestPointCasteljau(const ImVec2& p1, const ImVec2& p2, const ImVec2& p3, const ImVec2& p4, const ImVec2& p, float tess_tol);// For auto-tessellated curves you can use tess_tol = style.CurveTessellationTol
+IMGUI_API ImVec2     ImBezierQuadraticCalc(const ImVec2& p1, const ImVec2& p2, const ImVec2& p3, float t);
+IMGUI_API ImVec2     ImLineClosestPoint(const ImVec2& a, const ImVec2& b, const ImVec2& p);
+IMGUI_API bool       ImTriangleContainsPoint(const ImVec2& a, const ImVec2& b, const ImVec2& c, const ImVec2& p);
+IMGUI_API ImVec2     ImTriangleClosestPoint(const ImVec2& a, const ImVec2& b, const ImVec2& c, const ImVec2& p);
+IMGUI_API void       ImTriangleBarycentricCoords(const ImVec2& a, const ImVec2& b, const ImVec2& c, const ImVec2& p, float& out_u, float& out_v, float& out_w);
+inline float         ImTriangleArea(const ImVec2& a, const ImVec2& b, const ImVec2& c) { return ImFabs((a.x * (b.y - c.y)) + (b.x * (c.y - a.y)) + (c.x * (a.y - b.y))) * 0.5f; }
+IMGUI_API ImGuiDir   ImGetDirQuadrantFromDelta(float dx, float dy);
+
+// Helper: ImVec1 (1D vector)
+// (this odd construct is used to facilitate the transition between 1D and 2D, and the maintenance of some branches/patches)
+IM_MSVC_RUNTIME_CHECKS_OFF
+struct ImVec1
+{
+    float   x;
+    constexpr ImVec1()         : x(0.0f) { }
+    constexpr ImVec1(float _x) : x(_x) { }
+};
+
+// Helper: ImVec2ih (2D vector, half-size integer, for long-term packed storage)
+struct ImVec2ih
+{
+    short   x, y;
+    constexpr ImVec2ih()                           : x(0), y(0) {}
+    constexpr ImVec2ih(short _x, short _y)         : x(_x), y(_y) {}
+    constexpr explicit ImVec2ih(const ImVec2& rhs) : x((short)rhs.x), y((short)rhs.y) {}
+};
+
+// Helper: ImRect (2D axis aligned bounding-box)
+// NB: we can't rely on ImVec2 math operators being available here!
+struct IMGUI_API ImRect
+{
+    ImVec2      Min;    // Upper-left
+    ImVec2      Max;    // Lower-right
+
+    constexpr ImRect()                                        : Min(0.0f, 0.0f), Max(0.0f, 0.0f)  {}
+    constexpr ImRect(const ImVec2& min, const ImVec2& max)    : Min(min), Max(max)                {}
+    constexpr ImRect(const ImVec4& v)                         : Min(v.x, v.y), Max(v.z, v.w)      {}
+    constexpr ImRect(float x1, float y1, float x2, float y2)  : Min(x1, y1), Max(x2, y2)          {}
+
+    ImVec2      GetCenter() const                   { return ImVec2((Min.x + Max.x) * 0.5f, (Min.y + Max.y) * 0.5f); }
+    ImVec2      GetSize() const                     { return ImVec2(Max.x - Min.x, Max.y - Min.y); }
+    float       GetWidth() const                    { return Max.x - Min.x; }
+    float       GetHeight() const                   { return Max.y - Min.y; }
+    float       GetArea() const                     { return (Max.x - Min.x) * (Max.y - Min.y); }
+    ImVec2      GetTL() const                       { return Min; }                   // Top-left
+    ImVec2      GetTR() const                       { return ImVec2(Max.x, Min.y); }  // Top-right
+    ImVec2      GetBL() const                       { return ImVec2(Min.x, Max.y); }  // Bottom-left
+    ImVec2      GetBR() const                       { return Max; }                   // Bottom-right
+    bool        Contains(const ImVec2& p) const     { return p.x     >= Min.x && p.y     >= Min.y && p.x     <  Max.x && p.y     <  Max.y; }
+    bool        Contains(const ImRect& r) const     { return r.Min.x >= Min.x && r.Min.y >= Min.y && r.Max.x <= Max.x && r.Max.y <= Max.y; }
+    bool        Overlaps(const ImRect& r) const     { return r.Min.y <  Max.y && r.Max.y >  Min.y && r.Min.x <  Max.x && r.Max.x >  Min.x; }
+    void        Add(const ImVec2& p)                { if (Min.x > p.x)     Min.x = p.x;     if (Min.y > p.y)     Min.y = p.y;     if (Max.x < p.x)     Max.x = p.x;     if (Max.y < p.y)     Max.y = p.y; }
+    void        Add(const ImRect& r)                { if (Min.x > r.Min.x) Min.x = r.Min.x; if (Min.y > r.Min.y) Min.y = r.Min.y; if (Max.x < r.Max.x) Max.x = r.Max.x; if (Max.y < r.Max.y) Max.y = r.Max.y; }
+    void        Expand(const float amount)          { Min.x -= amount;   Min.y -= amount;   Max.x += amount;   Max.y += amount; }
+    void        Expand(const ImVec2& amount)        { Min.x -= amount.x; Min.y -= amount.y; Max.x += amount.x; Max.y += amount.y; }
+    void        Translate(const ImVec2& d)          { Min.x += d.x; Min.y += d.y; Max.x += d.x; Max.y += d.y; }
+    void        TranslateX(float dx)                { Min.x += dx; Max.x += dx; }
+    void        TranslateY(float dy)                { Min.y += dy; Max.y += dy; }
+    void        ClipWith(const ImRect& r)           { Min = ImMax(Min, r.Min); Max = ImMin(Max, r.Max); }                   // Simple version, may lead to an inverted rectangle, which is fine for Contains/Overlaps test but not for display.
+    void        ClipWithFull(const ImRect& r)       { Min = ImClamp(Min, r.Min, r.Max); Max = ImClamp(Max, r.Min, r.Max); } // Full version, ensure both points are fully clipped.
+    void        Floor()                             { Min.x = IM_FLOOR(Min.x); Min.y = IM_FLOOR(Min.y); Max.x = IM_FLOOR(Max.x); Max.y = IM_FLOOR(Max.y); }
+    bool        IsInverted() const                  { return Min.x > Max.x || Min.y > Max.y; }
+    ImVec4      ToVec4() const                      { return ImVec4(Min.x, Min.y, Max.x, Max.y); }
+};
+IM_MSVC_RUNTIME_CHECKS_RESTORE
+
+// Helper: ImBitArray
+inline bool     ImBitArrayTestBit(const ImU32* arr, int n)      { ImU32 mask = (ImU32)1 << (n & 31); return (arr[n >> 5] & mask) != 0; }
+inline void     ImBitArrayClearBit(ImU32* arr, int n)           { ImU32 mask = (ImU32)1 << (n & 31); arr[n >> 5] &= ~mask; }
+inline void     ImBitArraySetBit(ImU32* arr, int n)             { ImU32 mask = (ImU32)1 << (n & 31); arr[n >> 5] |= mask; }
+inline void     ImBitArraySetBitRange(ImU32* arr, int n, int n2) // Works on range [n..n2)
+{
+    n2--;
+    while (n <= n2)
+    {
+        int a_mod = (n & 31);
+        int b_mod = (n2 > (n | 31) ? 31 : (n2 & 31)) + 1;
+        ImU32 mask = (ImU32)(((ImU64)1 << b_mod) - 1) & ~(ImU32)(((ImU64)1 << a_mod) - 1);
+        arr[n >> 5] |= mask;
+        n = (n + 32) & ~31;
+    }
+}
+
+// Helper: ImBitArray class (wrapper over ImBitArray functions)
+// Store 1-bit per value.
+template<int BITCOUNT, int OFFSET = 0>
+struct ImBitArray
+{
+    ImU32           Storage[(BITCOUNT + 31) >> 5];
+    ImBitArray()                                { ClearAllBits(); }
+    void            ClearAllBits()              { memset(Storage, 0, sizeof(Storage)); }
+    void            SetAllBits()                { memset(Storage, 255, sizeof(Storage)); }
+    bool            TestBit(int n) const        { n += OFFSET; IM_ASSERT(n >= 0 && n < BITCOUNT); return ImBitArrayTestBit(Storage, n); }
+    void            SetBit(int n)               { n += OFFSET; IM_ASSERT(n >= 0 && n < BITCOUNT); ImBitArraySetBit(Storage, n); }
+    void            ClearBit(int n)             { n += OFFSET; IM_ASSERT(n >= 0 && n < BITCOUNT); ImBitArrayClearBit(Storage, n); }
+    void            SetBitRange(int n, int n2)  { n += OFFSET; n2 += OFFSET; IM_ASSERT(n >= 0 && n < BITCOUNT && n2 > n && n2 <= BITCOUNT); ImBitArraySetBitRange(Storage, n, n2); } // Works on range [n..n2)
+    bool            operator[](int n) const     { n += OFFSET; IM_ASSERT(n >= 0 && n < BITCOUNT); return ImBitArrayTestBit(Storage, n); }
+};
+
+// Helper: ImBitVector
+// Store 1-bit per value.
+struct IMGUI_API ImBitVector
+{
+    ImVector<ImU32> Storage;
+    void            Create(int sz)              { Storage.resize((sz + 31) >> 5); memset(Storage.Data, 0, (size_t)Storage.Size * sizeof(Storage.Data[0])); }
+    void            Clear()                     { Storage.clear(); }
+    bool            TestBit(int n) const        { IM_ASSERT(n < (Storage.Size << 5)); return ImBitArrayTestBit(Storage.Data, n); }
+    void            SetBit(int n)               { IM_ASSERT(n < (Storage.Size << 5)); ImBitArraySetBit(Storage.Data, n); }
+    void            ClearBit(int n)             { IM_ASSERT(n < (Storage.Size << 5)); ImBitArrayClearBit(Storage.Data, n); }
+};
+
+// Helper: ImSpan<>
+// Pointing to a span of data we don't own.
+template<typename T>
+struct ImSpan
+{
+    T*                  Data;
+    T*                  DataEnd;
+
+    // Constructors, destructor
+    inline ImSpan()                                 { Data = DataEnd = NULL; }
+    inline ImSpan(T* data, int size)                { Data = data; DataEnd = data + size; }
+    inline ImSpan(T* data, T* data_end)             { Data = data; DataEnd = data_end; }
+
+    inline void         set(T* data, int size)      { Data = data; DataEnd = data + size; }
+    inline void         set(T* data, T* data_end)   { Data = data; DataEnd = data_end; }
+    inline int          size() const                { return (int)(ptrdiff_t)(DataEnd - Data); }
+    inline int          size_in_bytes() const       { return (int)(ptrdiff_t)(DataEnd - Data) * (int)sizeof(T); }
+    inline T&           operator[](int i)           { T* p = Data + i; IM_ASSERT(p >= Data && p < DataEnd); return *p; }
+    inline const T&     operator[](int i) const     { const T* p = Data + i; IM_ASSERT(p >= Data && p < DataEnd); return *p; }
+
+    inline T*           begin()                     { return Data; }
+    inline const T*     begin() const               { return Data; }
+    inline T*           end()                       { return DataEnd; }
+    inline const T*     end() const                 { return DataEnd; }
+
+    // Utilities
+    inline int  index_from_ptr(const T* it) const   { IM_ASSERT(it >= Data && it < DataEnd); const ptrdiff_t off = it - Data; return (int)off; }
+};
+
+// Helper: ImSpanAllocator<>
+// Facilitate storing multiple chunks into a single large block (the "arena")
+// - Usage: call Reserve() N times, allocate GetArenaSizeInBytes() worth, pass it to SetArenaBasePtr(), call GetSpan() N times to retrieve the aligned ranges.
+template<int CHUNKS>
+struct ImSpanAllocator
+{
+    char*   BasePtr;
+    int     CurrOff;
+    int     CurrIdx;
+    int     Offsets[CHUNKS];
+    int     Sizes[CHUNKS];
+
+    ImSpanAllocator()                               { memset(this, 0, sizeof(*this)); }
+    inline void  Reserve(int n, size_t sz, int a=4) { IM_ASSERT(n == CurrIdx && n < CHUNKS); CurrOff = IM_MEMALIGN(CurrOff, a); Offsets[n] = CurrOff; Sizes[n] = (int)sz; CurrIdx++; CurrOff += (int)sz; }
+    inline int   GetArenaSizeInBytes()              { return CurrOff; }
+    inline void  SetArenaBasePtr(void* base_ptr)    { BasePtr = (char*)base_ptr; }
+    inline void* GetSpanPtrBegin(int n)             { IM_ASSERT(n >= 0 && n < CHUNKS && CurrIdx == CHUNKS); return (void*)(BasePtr + Offsets[n]); }
+    inline void* GetSpanPtrEnd(int n)               { IM_ASSERT(n >= 0 && n < CHUNKS && CurrIdx == CHUNKS); return (void*)(BasePtr + Offsets[n] + Sizes[n]); }
+    template<typename T>
+    inline void  GetSpan(int n, ImSpan<T>* span)    { span->set((T*)GetSpanPtrBegin(n), (T*)GetSpanPtrEnd(n)); }
+};
+
+// Helper: ImPool<>
+// Basic keyed storage for contiguous instances, slow/amortized insertion, O(1) indexable, O(Log N) queries by ID over a dense/hot buffer,
+// Honor constructor/destructor. Add/remove invalidate all pointers. Indexes have the same lifetime as the associated object.
+typedef int ImPoolIdx;
+template<typename T>
+struct ImPool
+{
+    ImVector<T>     Buf;        // Contiguous data
+    ImGuiStorage    Map;        // ID->Index
+    ImPoolIdx       FreeIdx;    // Next free idx to use
+    ImPoolIdx       AliveCount; // Number of active/alive items (for display purpose)
+
+    ImPool()    { FreeIdx = AliveCount = 0; }
+    ~ImPool()   { Clear(); }
+    T*          GetByKey(ImGuiID key)               { int idx = Map.GetInt(key, -1); return (idx != -1) ? &Buf[idx] : NULL; }
+    T*          GetByIndex(ImPoolIdx n)             { return &Buf[n]; }
+    ImPoolIdx   GetIndex(const T* p) const          { IM_ASSERT(p >= Buf.Data && p < Buf.Data + Buf.Size); return (ImPoolIdx)(p - Buf.Data); }
+    T*          GetOrAddByKey(ImGuiID key)          { int* p_idx = Map.GetIntRef(key, -1); if (*p_idx != -1) return &Buf[*p_idx]; *p_idx = FreeIdx; return Add(); }
+    bool        Contains(const T* p) const          { return (p >= Buf.Data && p < Buf.Data + Buf.Size); }
+    void        Clear()                             { for (int n = 0; n < Map.Data.Size; n++) { int idx = Map.Data[n].val_i; if (idx != -1) Buf[idx].~T(); } Map.Clear(); Buf.clear(); FreeIdx = AliveCount = 0; }
+    T*          Add()                               { int idx = FreeIdx; if (idx == Buf.Size) { Buf.resize(Buf.Size + 1); FreeIdx++; } else { FreeIdx = *(int*)&Buf[idx]; } IM_PLACEMENT_NEW(&Buf[idx]) T(); AliveCount++; return &Buf[idx]; }
+    void        Remove(ImGuiID key, const T* p)     { Remove(key, GetIndex(p)); }
+    void        Remove(ImGuiID key, ImPoolIdx idx)  { Buf[idx].~T(); *(int*)&Buf[idx] = FreeIdx; FreeIdx = idx; Map.SetInt(key, -1); AliveCount--; }
+    void        Reserve(int capacity)               { Buf.reserve(capacity); Map.Data.reserve(capacity); }
+
+    // To iterate a ImPool: for (int n = 0; n < pool.GetMapSize(); n++) if (T* t = pool.TryGetMapData(n)) { ... }
+    // Can be avoided if you know .Remove() has never been called on the pool, or AliveCount == GetMapSize()
+    int         GetAliveCount() const               { return AliveCount; }      // Number of active/alive items in the pool (for display purpose)
+    int         GetBufSize() const                  { return Buf.Size; }
+    int         GetMapSize() const                  { return Map.Data.Size; }   // It is the map we need iterate to find valid items, since we don't have "alive" storage anywhere
+    T*          TryGetMapData(ImPoolIdx n)          { int idx = Map.Data[n].val_i; if (idx == -1) return NULL; return GetByIndex(idx); }
+#ifndef IMGUI_DISABLE_OBSOLETE_FUNCTIONS
+    int         GetSize()                           { return GetMapSize(); } // For ImPlot: should use GetMapSize() from (IMGUI_VERSION_NUM >= 18304)
+#endif
+};
+
+// Helper: ImChunkStream<>
+// Build and iterate a contiguous stream of variable-sized structures.
+// This is used by Settings to store persistent data while reducing allocation count.
+// We store the chunk size first, and align the final size on 4 bytes boundaries.
+// The tedious/zealous amount of casting is to avoid -Wcast-align warnings.
+template<typename T>
+struct ImChunkStream
+{
+    ImVector<char>  Buf;
+
+    void    clear()                     { Buf.clear(); }
+    bool    empty() const               { return Buf.Size == 0; }
+    int     size() const                { return Buf.Size; }
+    T*      alloc_chunk(size_t sz)      { size_t HDR_SZ = 4; sz = IM_MEMALIGN(HDR_SZ + sz, 4u); int off = Buf.Size; Buf.resize(off + (int)sz); ((int*)(void*)(Buf.Data + off))[0] = (int)sz; return (T*)(void*)(Buf.Data + off + (int)HDR_SZ); }
+    T*      begin()                     { size_t HDR_SZ = 4; if (!Buf.Data) return NULL; return (T*)(void*)(Buf.Data + HDR_SZ); }
+    T*      next_chunk(T* p)            { size_t HDR_SZ = 4; IM_ASSERT(p >= begin() && p < end()); p = (T*)(void*)((char*)(void*)p + chunk_size(p)); if (p == (T*)(void*)((char*)end() + HDR_SZ)) return (T*)0; IM_ASSERT(p < end()); return p; }
+    int     chunk_size(const T* p)      { return ((const int*)p)[-1]; }
+    T*      end()                       { return (T*)(void*)(Buf.Data + Buf.Size); }
+    int     offset_from_ptr(const T* p) { IM_ASSERT(p >= begin() && p < end()); const ptrdiff_t off = (const char*)p - Buf.Data; return (int)off; }
+    T*      ptr_from_offset(int off)    { IM_ASSERT(off >= 4 && off < Buf.Size); return (T*)(void*)(Buf.Data + off); }
+    void    swap(ImChunkStream<T>& rhs) { rhs.Buf.swap(Buf); }
+
+};
+
+//-----------------------------------------------------------------------------
+// [SECTION] ImDrawList support
+//-----------------------------------------------------------------------------
+
+// ImDrawList: Helper function to calculate a circle's segment count given its radius and a "maximum error" value.
+// Estimation of number of circle segment based on error is derived using method described in https://stackoverflow.com/a/2244088/15194693
+// Number of segments (N) is calculated using equation:
+//   N = ceil ( pi / acos(1 - error / r) )     where r > 0, error <= r
+// Our equation is significantly simpler that one in the post thanks for choosing segment that is
+// perpendicular to X axis. Follow steps in the article from this starting condition and you will
+// will get this result.
+//
+// Rendering circles with an odd number of segments, while mathematically correct will produce
+// asymmetrical results on the raster grid. Therefore we're rounding N to next even number (7->8, 8->8, 9->10 etc.)
+#define IM_ROUNDUP_TO_EVEN(_V)                                  ((((_V) + 1) / 2) * 2)
+#define IM_DRAWLIST_CIRCLE_AUTO_SEGMENT_MIN                     4
+#define IM_DRAWLIST_CIRCLE_AUTO_SEGMENT_MAX                     512
+#define IM_DRAWLIST_CIRCLE_AUTO_SEGMENT_CALC(_RAD,_MAXERROR)    ImClamp(IM_ROUNDUP_TO_EVEN((int)ImCeil(IM_PI / ImAcos(1 - ImMin((_MAXERROR), (_RAD)) / (_RAD)))), IM_DRAWLIST_CIRCLE_AUTO_SEGMENT_MIN, IM_DRAWLIST_CIRCLE_AUTO_SEGMENT_MAX)
+
+// Raw equation from IM_DRAWLIST_CIRCLE_AUTO_SEGMENT_CALC rewritten for 'r' and 'error'.
+#define IM_DRAWLIST_CIRCLE_AUTO_SEGMENT_CALC_R(_N,_MAXERROR)    ((_MAXERROR) / (1 - ImCos(IM_PI / ImMax((float)(_N), IM_PI))))
+#define IM_DRAWLIST_CIRCLE_AUTO_SEGMENT_CALC_ERROR(_N,_RAD)     ((1 - ImCos(IM_PI / ImMax((float)(_N), IM_PI))) / (_RAD))
+
+// ImDrawList: Lookup table size for adaptive arc drawing, cover full circle.
+#ifndef IM_DRAWLIST_ARCFAST_TABLE_SIZE
+#define IM_DRAWLIST_ARCFAST_TABLE_SIZE                          48 // Number of samples in lookup table.
+#endif
+#define IM_DRAWLIST_ARCFAST_SAMPLE_MAX                          IM_DRAWLIST_ARCFAST_TABLE_SIZE // Sample index _PathArcToFastEx() for 360 angle.
+
+// Data shared between all ImDrawList instances
+// You may want to create your own instance of this if you want to use ImDrawList completely without ImGui. In that case, watch out for future changes to this structure.
+struct IMGUI_API ImDrawListSharedData
+{
+    ImVec2          TexUvWhitePixel;            // UV of white pixel in the atlas
+    ImFont*         Font;                       // Current/default font (optional, for simplified AddText overload)
+    float           FontSize;                   // Current/default font size (optional, for simplified AddText overload)
+    float           CurveTessellationTol;       // Tessellation tolerance when using PathBezierCurveTo()
+    float           CircleSegmentMaxError;      // Number of circle segments to use per pixel of radius for AddCircle() etc
+    ImVec4          ClipRectFullscreen;         // Value for PushClipRectFullscreen()
+    ImDrawListFlags InitialFlags;               // Initial flags at the beginning of the frame (it is possible to alter flags on a per-drawlist basis afterwards)
+
+    // [Internal] Lookup tables
+    ImVec2          ArcFastVtx[IM_DRAWLIST_ARCFAST_TABLE_SIZE]; // Sample points on the quarter of the circle.
+    float           ArcFastRadiusCutoff;                        // Cutoff radius after which arc drawing will fallback to slower PathArcTo()
+    ImU8            CircleSegmentCounts[64];    // Precomputed segment count for given radius before we calculate it dynamically (to avoid calculation overhead)
+    const ImVec4*   TexUvLines;                 // UV of anti-aliased lines in the atlas
+
+    ImDrawListSharedData();
+    void SetCircleTessellationMaxError(float max_error);
+};
+
+struct ImDrawDataBuilder
+{
+    ImVector<ImDrawList*>   Layers[2];           // Global layers for: regular, tooltip
+
+    void Clear()                    { for (int n = 0; n < IM_ARRAYSIZE(Layers); n++) Layers[n].resize(0); }
+    void ClearFreeMemory()          { for (int n = 0; n < IM_ARRAYSIZE(Layers); n++) Layers[n].clear(); }
+    int  GetDrawListCount() const   { int count = 0; for (int n = 0; n < IM_ARRAYSIZE(Layers); n++) count += Layers[n].Size; return count; }
+    IMGUI_API void FlattenIntoSingleLayer();
+};
+
+//-----------------------------------------------------------------------------
+// [SECTION] Widgets support: flags, enums, data structures
+//-----------------------------------------------------------------------------
+
+// Transient per-window flags, reset at the beginning of the frame. For child window, inherited from parent on first Begin().
+// This is going to be exposed in imgui.h when stabilized enough.
+enum ImGuiItemFlags_
+{
+    ImGuiItemFlags_None                     = 0,
+    ImGuiItemFlags_NoTabStop                = 1 << 0,  // false     // Disable keyboard tabbing (FIXME: should merge with _NoNav)
+    ImGuiItemFlags_ButtonRepeat             = 1 << 1,  // false     // Button() will return true multiple times based on io.KeyRepeatDelay and io.KeyRepeatRate settings.
+    ImGuiItemFlags_Disabled                 = 1 << 2,  // false     // Disable interactions but doesn't affect visuals. See BeginDisabled()/EndDisabled(). See github.com/ocornut/imgui/issues/211
+    ImGuiItemFlags_NoNav                    = 1 << 3,  // false     // Disable keyboard/gamepad directional navigation (FIXME: should merge with _NoTabStop)
+    ImGuiItemFlags_NoNavDefaultFocus        = 1 << 4,  // false     // Disable item being a candidate for default focus (e.g. used by title bar items)
+    ImGuiItemFlags_SelectableDontClosePopup = 1 << 5,  // false     // Disable MenuItem/Selectable() automatically closing their popup window
+    ImGuiItemFlags_MixedValue               = 1 << 6,  // false     // [BETA] Represent a mixed/indeterminate value, generally multi-selection where values differ. Currently only supported by Checkbox() (later should support all sorts of widgets)
+    ImGuiItemFlags_ReadOnly                 = 1 << 7,  // false     // [ALPHA] Allow hovering interactions but underlying value is not changed.
+    ImGuiItemFlags_Inputable                = 1 << 8   // false     // [WIP] Auto-activate input mode when tab focused. Currently only used and supported by a few items before it becomes a generic feature.
+};
+
+// Storage for LastItem data
+enum ImGuiItemStatusFlags_
+{
+    ImGuiItemStatusFlags_None               = 0,
+    ImGuiItemStatusFlags_HoveredRect        = 1 << 0,   // Mouse position is within item rectangle (does NOT mean that the window is in correct z-order and can be hovered!, this is only one part of the most-common IsItemHovered test)
+    ImGuiItemStatusFlags_HasDisplayRect     = 1 << 1,   // g.LastItemData.DisplayRect is valid
+    ImGuiItemStatusFlags_Edited             = 1 << 2,   // Value exposed by item was edited in the current frame (should match the bool return value of most widgets)
+    ImGuiItemStatusFlags_ToggledSelection   = 1 << 3,   // Set when Selectable(), TreeNode() reports toggling a selection. We can't report "Selected", only state changes, in order to easily handle clipping with less issues.
+    ImGuiItemStatusFlags_ToggledOpen        = 1 << 4,   // Set when TreeNode() reports toggling their open state.
+    ImGuiItemStatusFlags_HasDeactivated     = 1 << 5,   // Set if the widget/group is able to provide data for the ImGuiItemStatusFlags_Deactivated flag.
+    ImGuiItemStatusFlags_Deactivated        = 1 << 6,   // Only valid if ImGuiItemStatusFlags_HasDeactivated is set.
+    ImGuiItemStatusFlags_HoveredWindow      = 1 << 7,   // Override the HoveredWindow test to allow cross-window hover testing.
+    ImGuiItemStatusFlags_FocusedByTabbing   = 1 << 8    // Set when the Focusable item just got focused by Tabbing (FIXME: to be removed soon)
+
+#ifdef IMGUI_ENABLE_TEST_ENGINE
+    , // [imgui_tests only]
+    ImGuiItemStatusFlags_Openable           = 1 << 20,  // Item is an openable (e.g. TreeNode)
+    ImGuiItemStatusFlags_Opened             = 1 << 21,  //
+    ImGuiItemStatusFlags_Checkable          = 1 << 22,  // Item is a checkable (e.g. CheckBox, MenuItem)
+    ImGuiItemStatusFlags_Checked            = 1 << 23   //
+#endif
+};
+
+// Extend ImGuiInputTextFlags_
+enum ImGuiInputTextFlagsPrivate_
+{
+    // [Internal]
+    ImGuiInputTextFlags_Multiline           = 1 << 26,  // For internal use by InputTextMultiline()
+    ImGuiInputTextFlags_NoMarkEdited        = 1 << 27,  // For internal use by functions using InputText() before reformatting data
+    ImGuiInputTextFlags_MergedItem          = 1 << 28   // For internal use by TempInputText(), will skip calling ItemAdd(). Require bounding-box to strictly match.
+};
+
+// Extend ImGuiButtonFlags_
+enum ImGuiButtonFlagsPrivate_
+{
+    ImGuiButtonFlags_PressedOnClick         = 1 << 4,   // return true on click (mouse down event)
+    ImGuiButtonFlags_PressedOnClickRelease  = 1 << 5,   // [Default] return true on click + release on same item <-- this is what the majority of Button are using
+    ImGuiButtonFlags_PressedOnClickReleaseAnywhere = 1 << 6, // return true on click + release even if the release event is not done while hovering the item
+    ImGuiButtonFlags_PressedOnRelease       = 1 << 7,   // return true on release (default requires click+release)
+    ImGuiButtonFlags_PressedOnDoubleClick   = 1 << 8,   // return true on double-click (default requires click+release)
+    ImGuiButtonFlags_PressedOnDragDropHold  = 1 << 9,   // return true when held into while we are drag and dropping another item (used by e.g. tree nodes, collapsing headers)
+    ImGuiButtonFlags_Repeat                 = 1 << 10,  // hold to repeat
+    ImGuiButtonFlags_FlattenChildren        = 1 << 11,  // allow interactions even if a child window is overlapping
+    ImGuiButtonFlags_AllowItemOverlap       = 1 << 12,  // require previous frame HoveredId to either match id or be null before being usable, use along with SetItemAllowOverlap()
+    ImGuiButtonFlags_DontClosePopups        = 1 << 13,  // disable automatically closing parent popup on press // [UNUSED]
+    //ImGuiButtonFlags_Disabled             = 1 << 14,  // disable interactions -> use BeginDisabled() or ImGuiItemFlags_Disabled
+    ImGuiButtonFlags_AlignTextBaseLine      = 1 << 15,  // vertically align button to match text baseline - ButtonEx() only // FIXME: Should be removed and handled by SmallButton(), not possible currently because of DC.CursorPosPrevLine
+    ImGuiButtonFlags_NoKeyModifiers         = 1 << 16,  // disable mouse interaction if a key modifier is held
+    ImGuiButtonFlags_NoHoldingActiveId      = 1 << 17,  // don't set ActiveId while holding the mouse (ImGuiButtonFlags_PressedOnClick only)
+    ImGuiButtonFlags_NoNavFocus             = 1 << 18,  // don't override navigation focus when activated
+    ImGuiButtonFlags_NoHoveredOnFocus       = 1 << 19,  // don't report as hovered when nav focus is on this item
+    ImGuiButtonFlags_PressedOnMask_         = ImGuiButtonFlags_PressedOnClick | ImGuiButtonFlags_PressedOnClickRelease | ImGuiButtonFlags_PressedOnClickReleaseAnywhere | ImGuiButtonFlags_PressedOnRelease | ImGuiButtonFlags_PressedOnDoubleClick | ImGuiButtonFlags_PressedOnDragDropHold,
+    ImGuiButtonFlags_PressedOnDefault_      = ImGuiButtonFlags_PressedOnClickRelease
+};
+
+// Extend ImGuiComboFlags_
+enum ImGuiComboFlagsPrivate_
+{
+    ImGuiComboFlags_CustomPreview           = 1 << 20   // enable BeginComboPreview()
+};
+
+// Extend ImGuiSliderFlags_
+enum ImGuiSliderFlagsPrivate_
+{
+    ImGuiSliderFlags_Vertical               = 1 << 20,  // Should this slider be orientated vertically?
+    ImGuiSliderFlags_ReadOnly               = 1 << 21
+};
+
+// Extend ImGuiSelectableFlags_
+enum ImGuiSelectableFlagsPrivate_
+{
+    // NB: need to be in sync with last value of ImGuiSelectableFlags_
+    ImGuiSelectableFlags_NoHoldingActiveID      = 1 << 20,
+    ImGuiSelectableFlags_SelectOnNav            = 1 << 21,  // (WIP) Auto-select when moved into. This is not exposed in public API as to handle multi-select and modifiers we will need user to explicitly control focus scope. May be replaced with a BeginSelection() API.
+    ImGuiSelectableFlags_SelectOnClick          = 1 << 22,  // Override button behavior to react on Click (default is Click+Release)
+    ImGuiSelectableFlags_SelectOnRelease        = 1 << 23,  // Override button behavior to react on Release (default is Click+Release)
+    ImGuiSelectableFlags_SpanAvailWidth         = 1 << 24,  // Span all avail width even if we declared less for layout purpose. FIXME: We may be able to remove this (added in 6251d379, 2bcafc86 for menus)
+    ImGuiSelectableFlags_DrawHoveredWhenHeld    = 1 << 25,  // Always show active when held, even is not hovered. This concept could probably be renamed/formalized somehow.
+    ImGuiSelectableFlags_SetNavIdOnHover        = 1 << 26,  // Set Nav/Focus ID on mouse hover (used by MenuItem)
+    ImGuiSelectableFlags_NoPadWithHalfSpacing   = 1 << 27   // Disable padding each side with ItemSpacing * 0.5f
+};
+
+// Extend ImGuiTreeNodeFlags_
+enum ImGuiTreeNodeFlagsPrivate_
+{
+    ImGuiTreeNodeFlags_ClipLabelForTrailingButton = 1 << 20
+};
+
+enum ImGuiSeparatorFlags_
+{
+    ImGuiSeparatorFlags_None                = 0,
+    ImGuiSeparatorFlags_Horizontal          = 1 << 0,   // Axis default to current layout type, so generally Horizontal unless e.g. in a menu bar
+    ImGuiSeparatorFlags_Vertical            = 1 << 1,
+    ImGuiSeparatorFlags_SpanAllColumns      = 1 << 2
+};
+
+enum ImGuiTextFlags_
+{
+    ImGuiTextFlags_None = 0,
+    ImGuiTextFlags_NoWidthForLargeClippedText = 1 << 0
+};
+
+enum ImGuiTooltipFlags_
+{
+    ImGuiTooltipFlags_None = 0,
+    ImGuiTooltipFlags_OverridePreviousTooltip = 1 << 0      // Override will clear/ignore previously submitted tooltip (defaults to append)
+};
+
+// FIXME: this is in development, not exposed/functional as a generic feature yet.
+// Horizontal/Vertical enums are fixed to 0/1 so they may be used to index ImVec2
+enum ImGuiLayoutType_
+{
+    ImGuiLayoutType_Horizontal = 0,
+    ImGuiLayoutType_Vertical = 1
+};
+
+enum ImGuiLogType
+{
+    ImGuiLogType_None = 0,
+    ImGuiLogType_TTY,
+    ImGuiLogType_File,
+    ImGuiLogType_Buffer,
+    ImGuiLogType_Clipboard
+};
+
+// X/Y enums are fixed to 0/1 so they may be used to index ImVec2
+enum ImGuiAxis
+{
+    ImGuiAxis_None = -1,
+    ImGuiAxis_X = 0,
+    ImGuiAxis_Y = 1
+};
+
+enum ImGuiPlotType
+{
+    ImGuiPlotType_Lines,
+    ImGuiPlotType_Histogram
+};
+
+enum ImGuiPopupPositionPolicy
+{
+    ImGuiPopupPositionPolicy_Default,
+    ImGuiPopupPositionPolicy_ComboBox,
+    ImGuiPopupPositionPolicy_Tooltip
+};
+
+struct ImGuiDataTypeTempStorage
+{
+    ImU8        Data[8];        // Can fit any data up to ImGuiDataType_COUNT
+};
+
+// Type information associated to one ImGuiDataType. Retrieve with DataTypeGetInfo().
+struct ImGuiDataTypeInfo
+{
+    size_t      Size;           // Size in bytes
+    const char* Name;           // Short descriptive name for the type, for debugging
+    const char* PrintFmt;       // Default printf format for the type
+    const char* ScanFmt;        // Default scanf format for the type
+};
+
+// Extend ImGuiDataType_
+enum ImGuiDataTypePrivate_
+{
+    ImGuiDataType_String = ImGuiDataType_COUNT + 1,
+    ImGuiDataType_Pointer,
+    ImGuiDataType_ID
+};
+
+// Stacked color modifier, backup of modified data so we can restore it
+struct ImGuiColorMod
+{
+    ImGuiCol        Col;
+    ImVec4          BackupValue;
+};
+
+// Stacked style modifier, backup of modified data so we can restore it. Data type inferred from the variable.
+struct ImGuiStyleMod
+{
+    ImGuiStyleVar   VarIdx;
+    union           { int BackupInt[2]; float BackupFloat[2]; };
+    ImGuiStyleMod(ImGuiStyleVar idx, int v)     { VarIdx = idx; BackupInt[0] = v; }
+    ImGuiStyleMod(ImGuiStyleVar idx, float v)   { VarIdx = idx; BackupFloat[0] = v; }
+    ImGuiStyleMod(ImGuiStyleVar idx, ImVec2 v)  { VarIdx = idx; BackupFloat[0] = v.x; BackupFloat[1] = v.y; }
+};
+
+// Storage data for BeginComboPreview()/EndComboPreview()
+struct IMGUI_API ImGuiComboPreviewData
+{
+    ImRect          PreviewRect;
+    ImVec2          BackupCursorPos;
+    ImVec2          BackupCursorMaxPos;
+    ImVec2          BackupCursorPosPrevLine;
+    float           BackupPrevLineTextBaseOffset;
+    ImGuiLayoutType BackupLayout;
+
+    ImGuiComboPreviewData() { memset(this, 0, sizeof(*this)); }
+};
+
+// Stacked storage data for BeginGroup()/EndGroup()
+struct IMGUI_API ImGuiGroupData
+{
+    ImGuiID     WindowID;
+    ImVec2      BackupCursorPos;
+    ImVec2      BackupCursorMaxPos;
+    ImVec1      BackupIndent;
+    ImVec1      BackupGroupOffset;
+    ImVec2      BackupCurrLineSize;
+    float       BackupCurrLineTextBaseOffset;
+    ImGuiID     BackupActiveIdIsAlive;
+    bool        BackupActiveIdPreviousFrameIsAlive;
+    bool        BackupHoveredIdIsAlive;
+    bool        EmitItem;
+};
+
+// Simple column measurement, currently used for MenuItem() only.. This is very short-sighted/throw-away code and NOT a generic helper.
+struct IMGUI_API ImGuiMenuColumns
+{
+    ImU32       TotalWidth;
+    ImU32       NextTotalWidth;
+    ImU16       Spacing;
+    ImU16       OffsetIcon;         // Always zero for now
+    ImU16       OffsetLabel;        // Offsets are locked in Update()
+    ImU16       OffsetShortcut;
+    ImU16       OffsetMark;
+    ImU16       Widths[4];          // Width of:   Icon, Label, Shortcut, Mark  (accumulators for current frame)
+
+    ImGuiMenuColumns() { memset(this, 0, sizeof(*this)); }
+    void        Update(float spacing, bool window_reappearing);
+    float       DeclColumns(float w_icon, float w_label, float w_shortcut, float w_mark);
+    void        CalcNextTotalWidth(bool update_offsets);
+};
+
+// Internal state of the currently focused/edited text input box
+// For a given item ID, access with ImGui::GetInputTextState()
+struct IMGUI_API ImGuiInputTextState
+{
+    ImGuiID                 ID;                     // widget id owning the text state
+    int                     CurLenW, CurLenA;       // we need to maintain our buffer length in both UTF-8 and wchar format. UTF-8 length is valid even if TextA is not.
+    ImVector<ImWchar>       TextW;                  // edit buffer, we need to persist but can't guarantee the persistence of the user-provided buffer. so we copy into own buffer.
+    ImVector<char>          TextA;                  // temporary UTF8 buffer for callbacks and other operations. this is not updated in every code-path! size=capacity.
+    ImVector<char>          InitialTextA;           // backup of end-user buffer at the time of focus (in UTF-8, unaltered)
+    bool                    TextAIsValid;           // temporary UTF8 buffer is not initially valid before we make the widget active (until then we pull the data from user argument)
+    int                     BufCapacityA;           // end-user buffer capacity
+    float                   ScrollX;                // horizontal scrolling/offset
+    ImStb::STB_TexteditState Stb;                   // state for stb_textedit.h
+    float                   CursorAnim;             // timer for cursor blink, reset on every user action so the cursor reappears immediately
+    bool                    CursorFollow;           // set when we want scrolling to follow the current cursor position (not always!)
+    bool                    SelectedAllMouseLock;   // after a double-click to select all, we ignore further mouse drags to update selection
+    bool                    Edited;                 // edited this frame
+    ImGuiInputTextFlags     Flags;                  // copy of InputText() flags
+
+    ImGuiInputTextState()                   { memset(this, 0, sizeof(*this)); }
+    void        ClearText()                 { CurLenW = CurLenA = 0; TextW[0] = 0; TextA[0] = 0; CursorClamp(); }
+    void        ClearFreeMemory()           { TextW.clear(); TextA.clear(); InitialTextA.clear(); }
+    int         GetUndoAvailCount() const   { return Stb.undostate.undo_point; }
+    int         GetRedoAvailCount() const   { return STB_TEXTEDIT_UNDOSTATECOUNT - Stb.undostate.redo_point; }
+    void        OnKeyPressed(int key);      // Cannot be inline because we call in code in stb_textedit.h implementation
+
+    // Cursor & Selection
+    void        CursorAnimReset()           { CursorAnim = -0.30f; }                                   // After a user-input the cursor stays on for a while without blinking
+    void        CursorClamp()               { Stb.cursor = ImMin(Stb.cursor, CurLenW); Stb.select_start = ImMin(Stb.select_start, CurLenW); Stb.select_end = ImMin(Stb.select_end, CurLenW); }
+    bool        HasSelection() const        { return Stb.select_start != Stb.select_end; }
+    void        ClearSelection()            { Stb.select_start = Stb.select_end = Stb.cursor; }
+    int         GetCursorPos() const        { return Stb.cursor; }
+    int         GetSelectionStart() const   { return Stb.select_start; }
+    int         GetSelectionEnd() const     { return Stb.select_end; }
+    void        SelectAll()                 { Stb.select_start = 0; Stb.cursor = Stb.select_end = CurLenW; Stb.has_preferred_x = 0; }
+};
+
+// Storage for current popup stack
+struct ImGuiPopupData
+{
+    ImGuiID             PopupId;        // Set on OpenPopup()
+    ImGuiWindow*        Window;         // Resolved on BeginPopup() - may stay unresolved if user never calls OpenPopup()
+    ImGuiWindow*        SourceWindow;   // Set on OpenPopup() copy of NavWindow at the time of opening the popup
+    int                 ParentNavLayer; // Resolved on BeginPopup(). Actually a ImGuiNavLayer type (declared down below), initialized to -1 which is not part of an enum, but serves well-enough as "not any of layers" value
+    int                 OpenFrameCount; // Set on OpenPopup()
+    ImGuiID             OpenParentId;   // Set on OpenPopup(), we need this to differentiate multiple menu sets from each others (e.g. inside menu bar vs loose menu items)
+    ImVec2              OpenPopupPos;   // Set on OpenPopup(), preferred popup position (typically == OpenMousePos when using mouse)
+    ImVec2              OpenMousePos;   // Set on OpenPopup(), copy of mouse position at the time of opening popup
+
+    ImGuiPopupData()    { memset(this, 0, sizeof(*this)); ParentNavLayer = OpenFrameCount = -1; }
+};
+
+enum ImGuiNextWindowDataFlags_
+{
+    ImGuiNextWindowDataFlags_None               = 0,
+    ImGuiNextWindowDataFlags_HasPos             = 1 << 0,
+    ImGuiNextWindowDataFlags_HasSize            = 1 << 1,
+    ImGuiNextWindowDataFlags_HasContentSize     = 1 << 2,
+    ImGuiNextWindowDataFlags_HasCollapsed       = 1 << 3,
+    ImGuiNextWindowDataFlags_HasSizeConstraint  = 1 << 4,
+    ImGuiNextWindowDataFlags_HasFocus           = 1 << 5,
+    ImGuiNextWindowDataFlags_HasBgAlpha         = 1 << 6,
+    ImGuiNextWindowDataFlags_HasScroll          = 1 << 7
+};
+
+// Storage for SetNexWindow** functions
+struct ImGuiNextWindowData
+{
+    ImGuiNextWindowDataFlags    Flags;
+    ImGuiCond                   PosCond;
+    ImGuiCond                   SizeCond;
+    ImGuiCond                   CollapsedCond;
+    ImVec2                      PosVal;
+    ImVec2                      PosPivotVal;
+    ImVec2                      SizeVal;
+    ImVec2                      ContentSizeVal;
+    ImVec2                      ScrollVal;
+    bool                        CollapsedVal;
+    ImRect                      SizeConstraintRect;
+    ImGuiSizeCallback           SizeCallback;
+    void*                       SizeCallbackUserData;
+    float                       BgAlphaVal;             // Override background alpha
+    ImVec2                      MenuBarOffsetMinVal;    // (Always on) This is not exposed publicly, so we don't clear it and it doesn't have a corresponding flag (could we? for consistency?)
+
+    ImGuiNextWindowData()       { memset(this, 0, sizeof(*this)); }
+    inline void ClearFlags()    { Flags = ImGuiNextWindowDataFlags_None; }
+};
+
+enum ImGuiNextItemDataFlags_
+{
+    ImGuiNextItemDataFlags_None     = 0,
+    ImGuiNextItemDataFlags_HasWidth = 1 << 0,
+    ImGuiNextItemDataFlags_HasOpen  = 1 << 1
+};
+
+struct ImGuiNextItemData
+{
+    ImGuiNextItemDataFlags      Flags;
+    float                       Width;          // Set by SetNextItemWidth()
+    ImGuiID                     FocusScopeId;   // Set by SetNextItemMultiSelectData() (!= 0 signify value has been set, so it's an alternate version of HasSelectionData, we don't use Flags for this because they are cleared too early. This is mostly used for debugging)
+    ImGuiCond                   OpenCond;
+    bool                        OpenVal;        // Set by SetNextItemOpen()
+
+    ImGuiNextItemData()         { memset(this, 0, sizeof(*this)); }
+    inline void ClearFlags()    { Flags = ImGuiNextItemDataFlags_None; } // Also cleared manually by ItemAdd()!
+};
+
+// Status storage for the last submitted item
+struct ImGuiLastItemData
+{
+    ImGuiID                 ID;
+    ImGuiItemFlags          InFlags;            // See ImGuiItemFlags_
+    ImGuiItemStatusFlags    StatusFlags;        // See ImGuiItemStatusFlags_
+    ImRect                  Rect;               // Full rectangle
+    ImRect                  NavRect;            // Navigation scoring rectangle (not displayed)
+    ImRect                  DisplayRect;        // Display rectangle (only if ImGuiItemStatusFlags_HasDisplayRect is set)
+
+    ImGuiLastItemData()     { memset(this, 0, sizeof(*this)); }
+};
+
+struct IMGUI_API ImGuiStackSizes
+{
+    short   SizeOfIDStack;
+    short   SizeOfColorStack;
+    short   SizeOfStyleVarStack;
+    short   SizeOfFontStack;
+    short   SizeOfFocusScopeStack;
+    short   SizeOfGroupStack;
+    short   SizeOfItemFlagsStack;
+    short   SizeOfBeginPopupStack;
+    short   SizeOfDisabledStack;
+
+    ImGuiStackSizes() { memset(this, 0, sizeof(*this)); }
+    void SetToCurrentState();
+    void CompareWithCurrentState();
+};
+
+// Data saved for each window pushed into the stack
+struct ImGuiWindowStackData
+{
+    ImGuiWindow*            Window;
+    ImGuiLastItemData       ParentLastItemDataBackup;
+    ImGuiStackSizes         StackSizesOnBegin;      // Store size of various stacks for asserting
+};
+
+struct ImGuiShrinkWidthItem
+{
+    int         Index;
+    float       Width;
+    float       InitialWidth;
+};
+
+struct ImGuiPtrOrIndex
+{
+    void*       Ptr;            // Either field can be set, not both. e.g. Dock node tab bars are loose while BeginTabBar() ones are in a pool.
+    int         Index;          // Usually index in a main pool.
+
+    ImGuiPtrOrIndex(void* ptr)  { Ptr = ptr; Index = -1; }
+    ImGuiPtrOrIndex(int index)  { Ptr = NULL; Index = index; }
+};
+
+//-----------------------------------------------------------------------------
+// [SECTION] Inputs support
+//-----------------------------------------------------------------------------
+
+typedef ImBitArray<ImGuiKey_NamedKey_COUNT, -ImGuiKey_NamedKey_BEGIN>    ImBitArrayForNamedKeys;
+
+enum ImGuiKeyPrivate_
+{
+    ImGuiKey_LegacyNativeKey_BEGIN  = 0,
+    ImGuiKey_LegacyNativeKey_END    = 512,
+    ImGuiKey_Gamepad_BEGIN          = ImGuiKey_GamepadStart,
+    ImGuiKey_Gamepad_END            = ImGuiKey_GamepadRStickRight + 1
+};
+
+enum ImGuiInputEventType
+{
+    ImGuiInputEventType_None = 0,
+    ImGuiInputEventType_MousePos,
+    ImGuiInputEventType_MouseWheel,
+    ImGuiInputEventType_MouseButton,
+    ImGuiInputEventType_Key,
+    ImGuiInputEventType_Text,
+    ImGuiInputEventType_Focus,
+    ImGuiInputEventType_COUNT
+};
+
+enum ImGuiInputSource
+{
+    ImGuiInputSource_None = 0,
+    ImGuiInputSource_Mouse,
+    ImGuiInputSource_Keyboard,
+    ImGuiInputSource_Gamepad,
+    ImGuiInputSource_Clipboard,     // Currently only used by InputText()
+    ImGuiInputSource_Nav,           // Stored in g.ActiveIdSource only
+    ImGuiInputSource_COUNT
+};
+
+// FIXME: Structures in the union below need to be declared as anonymous unions appears to be an extension?
+// Using ImVec2() would fail on Clang 'union member 'MousePos' has a non-trivial default constructor'
+struct ImGuiInputEventMousePos      { float PosX, PosY; };
+struct ImGuiInputEventMouseWheel    { float WheelX, WheelY; };
+struct ImGuiInputEventMouseButton   { int Button; bool Down; };
+struct ImGuiInputEventKey           { ImGuiKey Key; bool Down; float AnalogValue; };
+struct ImGuiInputEventText          { unsigned int Char; };
+struct ImGuiInputEventAppFocused    { bool Focused; };
+
+struct ImGuiInputEvent
+{
+    ImGuiInputEventType             Type;
+    ImGuiInputSource                Source;
+    union
+    {
+        ImGuiInputEventMousePos     MousePos;       // if Type == ImGuiInputEventType_MousePos
+        ImGuiInputEventMouseWheel   MouseWheel;     // if Type == ImGuiInputEventType_MouseWheel
+        ImGuiInputEventMouseButton  MouseButton;    // if Type == ImGuiInputEventType_MouseButton
+        ImGuiInputEventKey          Key;            // if Type == ImGuiInputEventType_Key
+        ImGuiInputEventText         Text;           // if Type == ImGuiInputEventType_Text
+        ImGuiInputEventAppFocused   AppFocused;     // if Type == ImGuiInputEventType_Focus
+    };
+    bool                            AddedByTestEngine;
+
+    ImGuiInputEvent() { memset(this, 0, sizeof(*this)); }
+};
+
+// FIXME-NAV: Clarify/expose various repeat delay/rate
+enum ImGuiNavReadMode
+{
+    ImGuiNavReadMode_Down,
+    ImGuiNavReadMode_Pressed,
+    ImGuiNavReadMode_Released,
+    ImGuiNavReadMode_Repeat,
+    ImGuiNavReadMode_RepeatSlow,
+    ImGuiNavReadMode_RepeatFast
+};
+
+//-----------------------------------------------------------------------------
+// [SECTION] Clipper support
+//-----------------------------------------------------------------------------
+
+struct ImGuiListClipperRange
+{
+    int     Min;
+    int     Max;
+    bool    PosToIndexConvert;      // Begin/End are absolute position (will be converted to indices later)
+    ImS8    PosToIndexOffsetMin;    // Add to Min after converting to indices
+    ImS8    PosToIndexOffsetMax;    // Add to Min after converting to indices
+
+    static ImGuiListClipperRange    FromIndices(int min, int max)                               { ImGuiListClipperRange r = { min, max, false, 0, 0 }; return r; }
+    static ImGuiListClipperRange    FromPositions(float y1, float y2, int off_min, int off_max) { ImGuiListClipperRange r = { (int)y1, (int)y2, true, (ImS8)off_min, (ImS8)off_max }; return r; }
+};
+
+// Temporary clipper data, buffers shared/reused between instances
+struct ImGuiListClipperData
+{
+    ImGuiListClipper*               ListClipper;
+    float                           LossynessOffset;
+    int                             StepNo;
+    int                             ItemsFrozen;
+    ImVector<ImGuiListClipperRange> Ranges;
+
+    ImGuiListClipperData()          { memset(this, 0, sizeof(*this)); }
+    void                            Reset(ImGuiListClipper* clipper) { ListClipper = clipper; StepNo = ItemsFrozen = 0; Ranges.resize(0); }
+};
+
+//-----------------------------------------------------------------------------
+// [SECTION] Navigation support
+//-----------------------------------------------------------------------------
+
+enum ImGuiActivateFlags_
+{
+    ImGuiActivateFlags_None                 = 0,
+    ImGuiActivateFlags_PreferInput          = 1 << 0,       // Favor activation that requires keyboard text input (e.g. for Slider/Drag). Default if keyboard is available.
+    ImGuiActivateFlags_PreferTweak          = 1 << 1,       // Favor activation for tweaking with arrows or gamepad (e.g. for Slider/Drag). Default if keyboard is not available.
+    ImGuiActivateFlags_TryToPreserveState   = 1 << 2        // Request widget to preserve state if it can (e.g. InputText will try to preserve cursor/selection)
+};
+
+// Early work-in-progress API for ScrollToItem()
+enum ImGuiScrollFlags_
+{
+    ImGuiScrollFlags_None                   = 0,
+    ImGuiScrollFlags_KeepVisibleEdgeX       = 1 << 0,       // If item is not visible: scroll as little as possible on X axis to bring item back into view [default for X axis]
+    ImGuiScrollFlags_KeepVisibleEdgeY       = 1 << 1,       // If item is not visible: scroll as little as possible on Y axis to bring item back into view [default for Y axis for windows that are already visible]
+    ImGuiScrollFlags_KeepVisibleCenterX     = 1 << 2,       // If item is not visible: scroll to make the item centered on X axis [rarely used]
+    ImGuiScrollFlags_KeepVisibleCenterY     = 1 << 3,       // If item is not visible: scroll to make the item centered on Y axis
+    ImGuiScrollFlags_AlwaysCenterX          = 1 << 4,       // Always center the result item on X axis [rarely used]
+    ImGuiScrollFlags_AlwaysCenterY          = 1 << 5,       // Always center the result item on Y axis [default for Y axis for appearing window)
+    ImGuiScrollFlags_NoScrollParent         = 1 << 6,       // Disable forwarding scrolling to parent window if required to keep item/rect visible (only scroll window the function was applied to).
+    ImGuiScrollFlags_MaskX_                 = ImGuiScrollFlags_KeepVisibleEdgeX | ImGuiScrollFlags_KeepVisibleCenterX | ImGuiScrollFlags_AlwaysCenterX,
+    ImGuiScrollFlags_MaskY_                 = ImGuiScrollFlags_KeepVisibleEdgeY | ImGuiScrollFlags_KeepVisibleCenterY | ImGuiScrollFlags_AlwaysCenterY
+};
+
+enum ImGuiNavHighlightFlags_
+{
+    ImGuiNavHighlightFlags_None             = 0,
+    ImGuiNavHighlightFlags_TypeDefault      = 1 << 0,
+    ImGuiNavHighlightFlags_TypeThin         = 1 << 1,
+    ImGuiNavHighlightFlags_AlwaysDraw       = 1 << 2,       // Draw rectangular highlight if (g.NavId == id) _even_ when using the mouse.
+    ImGuiNavHighlightFlags_NoRounding       = 1 << 3
+};
+
+enum ImGuiNavDirSourceFlags_
+{
+    ImGuiNavDirSourceFlags_None             = 0,
+    ImGuiNavDirSourceFlags_RawKeyboard      = 1 << 0,   // Raw keyboard (not pulled from nav), facilitate use of some functions before we can unify nav and keys
+    ImGuiNavDirSourceFlags_Keyboard         = 1 << 1,
+    ImGuiNavDirSourceFlags_PadDPad          = 1 << 2,
+    ImGuiNavDirSourceFlags_PadLStick        = 1 << 3
+};
+
+enum ImGuiNavMoveFlags_
+{
+    ImGuiNavMoveFlags_None                  = 0,
+    ImGuiNavMoveFlags_LoopX                 = 1 << 0,   // On failed request, restart from opposite side
+    ImGuiNavMoveFlags_LoopY                 = 1 << 1,
+    ImGuiNavMoveFlags_WrapX                 = 1 << 2,   // On failed request, request from opposite side one line down (when NavDir==right) or one line up (when NavDir==left)
+    ImGuiNavMoveFlags_WrapY                 = 1 << 3,   // This is not super useful but provided for completeness
+    ImGuiNavMoveFlags_AllowCurrentNavId     = 1 << 4,   // Allow scoring and considering the current NavId as a move target candidate. This is used when the move source is offset (e.g. pressing PageDown actually needs to send a Up move request, if we are pressing PageDown from the bottom-most item we need to stay in place)
+    ImGuiNavMoveFlags_AlsoScoreVisibleSet   = 1 << 5,   // Store alternate result in NavMoveResultLocalVisible that only comprise elements that are already fully visible (used by PageUp/PageDown)
+    ImGuiNavMoveFlags_ScrollToEdgeY         = 1 << 6,   // Force scrolling to min/max (used by Home/End) // FIXME-NAV: Aim to remove or reword, probably unnecessary
+    ImGuiNavMoveFlags_Forwarded             = 1 << 7,
+    ImGuiNavMoveFlags_DebugNoResult         = 1 << 8,   // Dummy scoring for debug purpose, don't apply result
+    ImGuiNavMoveFlags_FocusApi              = 1 << 9,
+    ImGuiNavMoveFlags_Tabbing               = 1 << 10,  // == Focus + Activate if item is Inputable + DontChangeNavHighlight
+    ImGuiNavMoveFlags_Activate              = 1 << 11,
+    ImGuiNavMoveFlags_DontSetNavHighlight   = 1 << 12   // Do not alter the visible state of keyboard vs mouse nav highlight
+};
+
+enum ImGuiNavLayer
+{
+    ImGuiNavLayer_Main  = 0,    // Main scrolling layer
+    ImGuiNavLayer_Menu  = 1,    // Menu layer (access with Alt/ImGuiNavInput_Menu)
+    ImGuiNavLayer_COUNT
+};
+
+struct ImGuiNavItemData
+{
+    ImGuiWindow*        Window;         // Init,Move    // Best candidate window (result->ItemWindow->RootWindowForNav == request->Window)
+    ImGuiID             ID;             // Init,Move    // Best candidate item ID
+    ImGuiID             FocusScopeId;   // Init,Move    // Best candidate focus scope ID
+    ImRect              RectRel;        // Init,Move    // Best candidate bounding box in window relative space
+    ImGuiItemFlags      InFlags;        // ????,Move    // Best candidate item flags
+    float               DistBox;        //      Move    // Best candidate box distance to current NavId
+    float               DistCenter;     //      Move    // Best candidate center distance to current NavId
+    float               DistAxial;      //      Move    // Best candidate axial distance to current NavId
+
+    ImGuiNavItemData()  { Clear(); }
+    void Clear()        { Window = NULL; ID = FocusScopeId = 0; InFlags = 0; DistBox = DistCenter = DistAxial = FLT_MAX; }
+};
+
+//-----------------------------------------------------------------------------
+// [SECTION] Columns support
+//-----------------------------------------------------------------------------
+
+// Flags for internal's BeginColumns(). Prefix using BeginTable() nowadays!
+enum ImGuiOldColumnFlags_
+{
+    ImGuiOldColumnFlags_None                    = 0,
+    ImGuiOldColumnFlags_NoBorder                = 1 << 0,   // Disable column dividers
+    ImGuiOldColumnFlags_NoResize                = 1 << 1,   // Disable resizing columns when clicking on the dividers
+    ImGuiOldColumnFlags_NoPreserveWidths        = 1 << 2,   // Disable column width preservation when adjusting columns
+    ImGuiOldColumnFlags_NoForceWithinWindow     = 1 << 3,   // Disable forcing columns to fit within window
+    ImGuiOldColumnFlags_GrowParentContentsSize  = 1 << 4    // (WIP) Restore pre-1.51 behavior of extending the parent window contents size but _without affecting the columns width at all_. Will eventually remove.
+
+    // Obsolete names (will be removed)
+#ifndef IMGUI_DISABLE_OBSOLETE_FUNCTIONS
+    , ImGuiColumnsFlags_None                    = ImGuiOldColumnFlags_None,
+    ImGuiColumnsFlags_NoBorder                  = ImGuiOldColumnFlags_NoBorder,
+    ImGuiColumnsFlags_NoResize                  = ImGuiOldColumnFlags_NoResize,
+    ImGuiColumnsFlags_NoPreserveWidths          = ImGuiOldColumnFlags_NoPreserveWidths,
+    ImGuiColumnsFlags_NoForceWithinWindow       = ImGuiOldColumnFlags_NoForceWithinWindow,
+    ImGuiColumnsFlags_GrowParentContentsSize    = ImGuiOldColumnFlags_GrowParentContentsSize
+#endif
+};
+
+struct ImGuiOldColumnData
+{
+    float               OffsetNorm;         // Column start offset, normalized 0.0 (far left) -> 1.0 (far right)
+    float               OffsetNormBeforeResize;
+    ImGuiOldColumnFlags Flags;              // Not exposed
+    ImRect              ClipRect;
+
+    ImGuiOldColumnData() { memset(this, 0, sizeof(*this)); }
+};
+
+struct ImGuiOldColumns
+{
+    ImGuiID             ID;
+    ImGuiOldColumnFlags Flags;
+    bool                IsFirstFrame;
+    bool                IsBeingResized;
+    int                 Current;
+    int                 Count;
+    float               OffMinX, OffMaxX;       // Offsets from HostWorkRect.Min.x
+    float               LineMinY, LineMaxY;
+    float               HostCursorPosY;         // Backup of CursorPos at the time of BeginColumns()
+    float               HostCursorMaxPosX;      // Backup of CursorMaxPos at the time of BeginColumns()
+    ImRect              HostInitialClipRect;    // Backup of ClipRect at the time of BeginColumns()
+    ImRect              HostBackupClipRect;     // Backup of ClipRect during PushColumnsBackground()/PopColumnsBackground()
+    ImRect              HostBackupParentWorkRect;//Backup of WorkRect at the time of BeginColumns()
+    ImVector<ImGuiOldColumnData> Columns;
+    ImDrawListSplitter  Splitter;
+
+    ImGuiOldColumns()   { memset(this, 0, sizeof(*this)); }
+};
+
+//-----------------------------------------------------------------------------
+// [SECTION] Multi-select support
+//-----------------------------------------------------------------------------
+
+#ifdef IMGUI_HAS_MULTI_SELECT
+// <this is filled in 'range_select' branch>
+#endif // #ifdef IMGUI_HAS_MULTI_SELECT
+
+//-----------------------------------------------------------------------------
+// [SECTION] Docking support
+//-----------------------------------------------------------------------------
+
+#ifdef IMGUI_HAS_DOCK
+// <this is filled in 'docking' branch>
+#endif // #ifdef IMGUI_HAS_DOCK
+
+//-----------------------------------------------------------------------------
+// [SECTION] Viewport support
+//-----------------------------------------------------------------------------
+
+// ImGuiViewport Private/Internals fields (cardinal sin: we are using inheritance!)
+// Every instance of ImGuiViewport is in fact a ImGuiViewportP.
+struct ImGuiViewportP : public ImGuiViewport
+{
+    int                 DrawListsLastFrame[2];  // Last frame number the background (0) and foreground (1) draw lists were used
+    ImDrawList*         DrawLists[2];           // Convenience background (0) and foreground (1) draw lists. We use them to draw software mouser cursor when io.MouseDrawCursor is set and to draw most debug overlays.
+    ImDrawData          DrawDataP;
+    ImDrawDataBuilder   DrawDataBuilder;
+
+    ImVec2              WorkOffsetMin;          // Work Area: Offset from Pos to top-left corner of Work Area. Generally (0,0) or (0,+main_menu_bar_height). Work Area is Full Area but without menu-bars/status-bars (so WorkArea always fit inside Pos/Size!)
+    ImVec2              WorkOffsetMax;          // Work Area: Offset from Pos+Size to bottom-right corner of Work Area. Generally (0,0) or (0,-status_bar_height).
+    ImVec2              BuildWorkOffsetMin;     // Work Area: Offset being built during current frame. Generally >= 0.0f.
+    ImVec2              BuildWorkOffsetMax;     // Work Area: Offset being built during current frame. Generally <= 0.0f.
+
+    ImGuiViewportP()    { DrawListsLastFrame[0] = DrawListsLastFrame[1] = -1; DrawLists[0] = DrawLists[1] = NULL; }
+    ~ImGuiViewportP()   { if (DrawLists[0]) IM_DELETE(DrawLists[0]); if (DrawLists[1]) IM_DELETE(DrawLists[1]); }
+
+    // Calculate work rect pos/size given a set of offset (we have 1 pair of offset for rect locked from last frame data, and 1 pair for currently building rect)
+    ImVec2  CalcWorkRectPos(const ImVec2& off_min) const                            { return ImVec2(Pos.x + off_min.x, Pos.y + off_min.y); }
+    ImVec2  CalcWorkRectSize(const ImVec2& off_min, const ImVec2& off_max) const    { return ImVec2(ImMax(0.0f, Size.x - off_min.x + off_max.x), ImMax(0.0f, Size.y - off_min.y + off_max.y)); }
+    void    UpdateWorkRect()            { WorkPos = CalcWorkRectPos(WorkOffsetMin); WorkSize = CalcWorkRectSize(WorkOffsetMin, WorkOffsetMax); } // Update public fields
+
+    // Helpers to retrieve ImRect (we don't need to store BuildWorkRect as every access tend to change it, hence the code asymmetry)
+    ImRect  GetMainRect() const         { return ImRect(Pos.x, Pos.y, Pos.x + Size.x, Pos.y + Size.y); }
+    ImRect  GetWorkRect() const         { return ImRect(WorkPos.x, WorkPos.y, WorkPos.x + WorkSize.x, WorkPos.y + WorkSize.y); }
+    ImRect  GetBuildWorkRect() const    { ImVec2 pos = CalcWorkRectPos(BuildWorkOffsetMin); ImVec2 size = CalcWorkRectSize(BuildWorkOffsetMin, BuildWorkOffsetMax); return ImRect(pos.x, pos.y, pos.x + size.x, pos.y + size.y); }
+};
+
+//-----------------------------------------------------------------------------
+// [SECTION] Settings support
+//-----------------------------------------------------------------------------
+
+// Windows data saved in imgui.ini file
+// Because we never destroy or rename ImGuiWindowSettings, we can store the names in a separate buffer easily.
+// (this is designed to be stored in a ImChunkStream buffer, with the variable-length Name following our structure)
+struct ImGuiWindowSettings
+{
+    ImGuiID     ID;
+    ImVec2ih    Pos;
+    ImVec2ih    Size;
+    bool        Collapsed;
+    bool        WantApply;      // Set when loaded from .ini data (to enable merging/loading .ini data into an already running context)
+
+    ImGuiWindowSettings()       { memset(this, 0, sizeof(*this)); }
+    char* GetName()             { return (char*)(this + 1); }
+};
+
+struct ImGuiSettingsHandler
+{
+    const char* TypeName;       // Short description stored in .ini file. Disallowed characters: '[' ']'
+    ImGuiID     TypeHash;       // == ImHashStr(TypeName)
+    void        (*ClearAllFn)(ImGuiContext* ctx, ImGuiSettingsHandler* handler);                                // Clear all settings data
+    void        (*ReadInitFn)(ImGuiContext* ctx, ImGuiSettingsHandler* handler);                                // Read: Called before reading (in registration order)
+    void*       (*ReadOpenFn)(ImGuiContext* ctx, ImGuiSettingsHandler* handler, const char* name);              // Read: Called when entering into a new ini entry e.g. "[Window][Name]"
+    void        (*ReadLineFn)(ImGuiContext* ctx, ImGuiSettingsHandler* handler, void* entry, const char* line); // Read: Called for every line of text within an ini entry
+    void        (*ApplyAllFn)(ImGuiContext* ctx, ImGuiSettingsHandler* handler);                                // Read: Called after reading (in registration order)
+    void        (*WriteAllFn)(ImGuiContext* ctx, ImGuiSettingsHandler* handler, ImGuiTextBuffer* out_buf);      // Write: Output every entries into 'out_buf'
+    void*       UserData;
+
+    ImGuiSettingsHandler() { memset(this, 0, sizeof(*this)); }
+};
+
+//-----------------------------------------------------------------------------
+// [SECTION] Metrics, Debug Tools
+//-----------------------------------------------------------------------------
+
+enum ImGuiDebugLogFlags_
+{
+    // Event types
+    ImGuiDebugLogFlags_None             = 0,
+    ImGuiDebugLogFlags_EventActiveId    = 1 << 0,
+    ImGuiDebugLogFlags_EventFocus       = 1 << 1,
+    ImGuiDebugLogFlags_EventPopup       = 1 << 2,
+    ImGuiDebugLogFlags_EventNav         = 1 << 3,
+    ImGuiDebugLogFlags_EventIO          = 1 << 4,
+    ImGuiDebugLogFlags_EventMask_       = ImGuiDebugLogFlags_EventActiveId  | ImGuiDebugLogFlags_EventFocus | ImGuiDebugLogFlags_EventPopup | ImGuiDebugLogFlags_EventNav | ImGuiDebugLogFlags_EventIO,
+    ImGuiDebugLogFlags_OutputToTTY      = 1 << 10   // Also send output to TTY
+};
+
+struct ImGuiMetricsConfig
+{
+    bool        ShowDebugLog;
+    bool        ShowStackTool;
+    bool        ShowWindowsRects;
+    bool        ShowWindowsBeginOrder;
+    bool        ShowTablesRects;
+    bool        ShowDrawCmdMesh;
+    bool        ShowDrawCmdBoundingBoxes;
+    int         ShowWindowsRectsType;
+    int         ShowTablesRectsType;
+
+    ImGuiMetricsConfig()
+    {
+        ShowDebugLog = ShowStackTool = ShowWindowsRects = ShowWindowsBeginOrder = ShowTablesRects = false;
+        ShowDrawCmdMesh = true;
+        ShowDrawCmdBoundingBoxes = true;
+        ShowWindowsRectsType = ShowTablesRectsType = -1;
+    }
+};
+
+struct ImGuiStackLevelInfo
+{
+    ImGuiID                 ID;
+    ImS8                    QueryFrameCount;            // >= 1: Query in progress
+    bool                    QuerySuccess;               // Obtained result from DebugHookIdInfo()
+    ImGuiDataType           DataType : 8;
+    char                    Desc[57];                   // Arbitrarily sized buffer to hold a result (FIXME: could replace Results[] with a chunk stream?) FIXME: Now that we added CTRL+C this should be fixed.
+
+    ImGuiStackLevelInfo()   { memset(this, 0, sizeof(*this)); }
+};
+
+// State for Stack tool queries
+struct ImGuiStackTool
+{
+    int                     LastActiveFrame;
+    int                     StackLevel;                 // -1: query stack and resize Results, >= 0: individual stack level
+    ImGuiID                 QueryId;                    // ID to query details for
+    ImVector<ImGuiStackLevelInfo> Results;
+    bool                    CopyToClipboardOnCtrlC;
+    float                   CopyToClipboardLastTime;
+
+    ImGuiStackTool()        { memset(this, 0, sizeof(*this)); CopyToClipboardLastTime = -FLT_MAX; }
+};
+
+//-----------------------------------------------------------------------------
+// [SECTION] Generic context hooks
+//-----------------------------------------------------------------------------
+
+typedef void (*ImGuiContextHookCallback)(ImGuiContext* ctx, ImGuiContextHook* hook);
+enum ImGuiContextHookType { ImGuiContextHookType_NewFramePre, ImGuiContextHookType_NewFramePost, ImGuiContextHookType_EndFramePre, ImGuiContextHookType_EndFramePost, ImGuiContextHookType_RenderPre, ImGuiContextHookType_RenderPost, ImGuiContextHookType_Shutdown, ImGuiContextHookType_PendingRemoval_ };
+
+struct ImGuiContextHook
+{
+    ImGuiID                     HookId;     // A unique ID assigned by AddContextHook()
+    ImGuiContextHookType        Type;
+    ImGuiID                     Owner;
+    ImGuiContextHookCallback    Callback;
+    void*                       UserData;
+
+    ImGuiContextHook()          { memset(this, 0, sizeof(*this)); }
+};
+
+//-----------------------------------------------------------------------------
+// [SECTION] ImGuiContext (main Dear ImGui context)
+//-----------------------------------------------------------------------------
+
+struct ImGuiContext
+{
+    bool                    Initialized;
+    bool                    FontAtlasOwnedByContext;            // IO.Fonts-> is owned by the ImGuiContext and will be destructed along with it.
+    ImGuiIO                 IO;
+    ImVector<ImGuiInputEvent> InputEventsQueue;                 // Input events which will be tricked/written into IO structure.
+    ImVector<ImGuiInputEvent> InputEventsTrail;                 // Past input events processed in NewFrame(). This is to allow domain-specific application to access e.g mouse/pen trail.
+    ImGuiStyle              Style;
+    ImFont*                 Font;                               // (Shortcut) == FontStack.empty() ? IO.Font : FontStack.back()
+    float                   FontSize;                           // (Shortcut) == FontBaseSize * g.CurrentWindow->FontWindowScale == window->FontSize(). Text height for current window.
+    float                   FontBaseSize;                       // (Shortcut) == IO.FontGlobalScale * Font->Scale * Font->FontSize. Base text height.
+    ImDrawListSharedData    DrawListSharedData;
+    double                  Time;
+    int                     FrameCount;
+    int                     FrameCountEnded;
+    int                     FrameCountRendered;
+    bool                    WithinFrameScope;                   // Set by NewFrame(), cleared by EndFrame()
+    bool                    WithinFrameScopeWithImplicitWindow; // Set by NewFrame(), cleared by EndFrame() when the implicit debug window has been pushed
+    bool                    WithinEndChild;                     // Set within EndChild()
+    bool                    GcCompactAll;                       // Request full GC
+    bool                    TestEngineHookItems;                // Will call test engine hooks: ImGuiTestEngineHook_ItemAdd(), ImGuiTestEngineHook_ItemInfo(), ImGuiTestEngineHook_Log()
+    void*                   TestEngine;                         // Test engine user data
+
+    // Windows state
+    ImVector<ImGuiWindow*>  Windows;                            // Windows, sorted in display order, back to front
+    ImVector<ImGuiWindow*>  WindowsFocusOrder;                  // Root windows, sorted in focus order, back to front.
+    ImVector<ImGuiWindow*>  WindowsTempSortBuffer;              // Temporary buffer used in EndFrame() to reorder windows so parents are kept before their child
+    ImVector<ImGuiWindowStackData> CurrentWindowStack;
+    ImGuiStorage            WindowsById;                        // Map window's ImGuiID to ImGuiWindow*
+    int                     WindowsActiveCount;                 // Number of unique windows submitted by frame
+    ImVec2                  WindowsHoverPadding;                // Padding around resizable windows for which hovering on counts as hovering the window == ImMax(style.TouchExtraPadding, WINDOWS_HOVER_PADDING)
+    ImGuiWindow*            CurrentWindow;                      // Window being drawn into
+    ImGuiWindow*            HoveredWindow;                      // Window the mouse is hovering. Will typically catch mouse inputs.
+    ImGuiWindow*            HoveredWindowUnderMovingWindow;     // Hovered window ignoring MovingWindow. Only set if MovingWindow is set.
+    ImGuiWindow*            MovingWindow;                       // Track the window we clicked on (in order to preserve focus). The actual window that is moved is generally MovingWindow->RootWindow.
+    ImGuiWindow*            WheelingWindow;                     // Track the window we started mouse-wheeling on. Until a timer elapse or mouse has moved, generally keep scrolling the same window even if during the course of scrolling the mouse ends up hovering a child window.
+    ImVec2                  WheelingWindowRefMousePos;
+    float                   WheelingWindowTimer;
+
+    // Item/widgets state and tracking information
+    ImGuiID                 DebugHookIdInfo;                    // Will call core hooks: DebugHookIdInfo() from GetID functions, used by Stack Tool [next HoveredId/ActiveId to not pull in an extra cache-line]
+    ImGuiID                 HoveredId;                          // Hovered widget, filled during the frame
+    ImGuiID                 HoveredIdPreviousFrame;
+    bool                    HoveredIdAllowOverlap;
+    bool                    HoveredIdUsingMouseWheel;           // Hovered widget will use mouse wheel. Blocks scrolling the underlying window.
+    bool                    HoveredIdPreviousFrameUsingMouseWheel;
+    bool                    HoveredIdDisabled;                  // At least one widget passed the rect test, but has been discarded by disabled flag or popup inhibit. May be true even if HoveredId == 0.
+    float                   HoveredIdTimer;                     // Measure contiguous hovering time
+    float                   HoveredIdNotActiveTimer;            // Measure contiguous hovering time where the item has not been active
+    ImGuiID                 ActiveId;                           // Active widget
+    ImGuiID                 ActiveIdIsAlive;                    // Active widget has been seen this frame (we can't use a bool as the ActiveId may change within the frame)
+    float                   ActiveIdTimer;
+    bool                    ActiveIdIsJustActivated;            // Set at the time of activation for one frame
+    bool                    ActiveIdAllowOverlap;               // Active widget allows another widget to steal active id (generally for overlapping widgets, but not always)
+    bool                    ActiveIdNoClearOnFocusLoss;         // Disable losing active id if the active id window gets unfocused.
+    bool                    ActiveIdHasBeenPressedBefore;       // Track whether the active id led to a press (this is to allow changing between PressOnClick and PressOnRelease without pressing twice). Used by range_select branch.
+    bool                    ActiveIdHasBeenEditedBefore;        // Was the value associated to the widget Edited over the course of the Active state.
+    bool                    ActiveIdHasBeenEditedThisFrame;
+    ImVec2                  ActiveIdClickOffset;                // Clicked offset from upper-left corner, if applicable (currently only set by ButtonBehavior)
+    ImGuiWindow*            ActiveIdWindow;
+    ImGuiInputSource        ActiveIdSource;                     // Activating with mouse or nav (gamepad/keyboard)
+    int                     ActiveIdMouseButton;
+    ImGuiID                 ActiveIdPreviousFrame;
+    bool                    ActiveIdPreviousFrameIsAlive;
+    bool                    ActiveIdPreviousFrameHasBeenEditedBefore;
+    ImGuiWindow*            ActiveIdPreviousFrameWindow;
+    ImGuiID                 LastActiveId;                       // Store the last non-zero ActiveId, useful for animation.
+    float                   LastActiveIdTimer;                  // Store the last non-zero ActiveId timer since the beginning of activation, useful for animation.
+
+    // Input Ownership
+    bool                    ActiveIdUsingMouseWheel;            // Active widget will want to read mouse wheel. Blocks scrolling the underlying window.
+    ImU32                   ActiveIdUsingNavDirMask;            // Active widget will want to read those nav move requests (e.g. can activate a button and move away from it)
+    ImU32                   ActiveIdUsingNavInputMask;          // Active widget will want to read those nav inputs.
+    ImBitArrayForNamedKeys  ActiveIdUsingKeyInputMask;          // Active widget will want to read those key inputs. When we grow the ImGuiKey enum we'll need to either to order the enum to make useful keys come first, either redesign this into e.g. a small array.
+
+    // Next window/item data
+    ImGuiItemFlags          CurrentItemFlags;                      // == g.ItemFlagsStack.back()
+    ImGuiNextItemData       NextItemData;                       // Storage for SetNextItem** functions
+    ImGuiLastItemData       LastItemData;                       // Storage for last submitted item (setup by ItemAdd)
+    ImGuiNextWindowData     NextWindowData;                     // Storage for SetNextWindow** functions
+
+    // Shared stacks
+    ImVector<ImGuiColorMod> ColorStack;                         // Stack for PushStyleColor()/PopStyleColor() - inherited by Begin()
+    ImVector<ImGuiStyleMod> StyleVarStack;                      // Stack for PushStyleVar()/PopStyleVar() - inherited by Begin()
+    ImVector<ImFont*>       FontStack;                          // Stack for PushFont()/PopFont() - inherited by Begin()
+    ImVector<ImGuiID>       FocusScopeStack;                    // Stack for PushFocusScope()/PopFocusScope() - not inherited by Begin(), unless child window
+    ImVector<ImGuiItemFlags>ItemFlagsStack;                     // Stack for PushItemFlag()/PopItemFlag() - inherited by Begin()
+    ImVector<ImGuiGroupData>GroupStack;                         // Stack for BeginGroup()/EndGroup() - not inherited by Begin()
+    ImVector<ImGuiPopupData>OpenPopupStack;                     // Which popups are open (persistent)
+    ImVector<ImGuiPopupData>BeginPopupStack;                    // Which level of BeginPopup() we are in (reset every frame)
+    int                     BeginMenuCount;
+
+    // Viewports
+    ImVector<ImGuiViewportP*> Viewports;                        // Active viewports (Size==1 in 'master' branch). Each viewports hold their copy of ImDrawData.
+
+    // Gamepad/keyboard Navigation
+    ImGuiWindow*            NavWindow;                          // Focused window for navigation. Could be called 'FocusedWindow'
+    ImGuiID                 NavId;                              // Focused item for navigation
+    ImGuiID                 NavFocusScopeId;                    // Identify a selection scope (selection code often wants to "clear other items" when landing on an item of the selection set)
+    ImGuiID                 NavActivateId;                      // ~~ (g.ActiveId == 0) && IsNavInputPressed(ImGuiNavInput_Activate) ? NavId : 0, also set when calling ActivateItem()
+    ImGuiID                 NavActivateDownId;                  // ~~ IsNavInputDown(ImGuiNavInput_Activate) ? NavId : 0
+    ImGuiID                 NavActivatePressedId;               // ~~ IsNavInputPressed(ImGuiNavInput_Activate) ? NavId : 0
+    ImGuiID                 NavActivateInputId;                 // ~~ IsNavInputPressed(ImGuiNavInput_Input) ? NavId : 0; ImGuiActivateFlags_PreferInput will be set and NavActivateId will be 0.
+    ImGuiActivateFlags      NavActivateFlags;
+    ImGuiID                 NavJustMovedToId;                   // Just navigated to this id (result of a successfully MoveRequest).
+    ImGuiID                 NavJustMovedToFocusScopeId;         // Just navigated to this focus scope id (result of a successfully MoveRequest).
+    ImGuiModFlags           NavJustMovedToKeyMods;
+    ImGuiID                 NavNextActivateId;                  // Set by ActivateItem(), queued until next frame.
+    ImGuiActivateFlags      NavNextActivateFlags;
+    ImGuiInputSource        NavInputSource;                     // Keyboard or Gamepad mode? THIS WILL ONLY BE None or NavGamepad or NavKeyboard.
+    ImGuiNavLayer           NavLayer;                           // Layer we are navigating on. For now the system is hard-coded for 0=main contents and 1=menu/title bar, may expose layers later.
+    bool                    NavIdIsAlive;                       // Nav widget has been seen this frame ~~ NavRectRel is valid
+    bool                    NavMousePosDirty;                   // When set we will update mouse position if (io.ConfigFlags & ImGuiConfigFlags_NavEnableSetMousePos) if set (NB: this not enabled by default)
+    bool                    NavDisableHighlight;                // When user starts using mouse, we hide gamepad/keyboard highlight (NB: but they are still available, which is why NavDisableHighlight isn't always != NavDisableMouseHover)
+    bool                    NavDisableMouseHover;               // When user starts using gamepad/keyboard, we hide mouse hovering highlight until mouse is touched again.
+
+    // Navigation: Init & Move Requests
+    bool                    NavAnyRequest;                      // ~~ NavMoveRequest || NavInitRequest this is to perform early out in ItemAdd()
+    bool                    NavInitRequest;                     // Init request for appearing window to select first item
+    bool                    NavInitRequestFromMove;
+    ImGuiID                 NavInitResultId;                    // Init request result (first item of the window, or one for which SetItemDefaultFocus() was called)
+    ImRect                  NavInitResultRectRel;               // Init request result rectangle (relative to parent window)
+    bool                    NavMoveSubmitted;                   // Move request submitted, will process result on next NewFrame()
+    bool                    NavMoveScoringItems;                // Move request submitted, still scoring incoming items
+    bool                    NavMoveForwardToNextFrame;
+    ImGuiNavMoveFlags       NavMoveFlags;
+    ImGuiScrollFlags        NavMoveScrollFlags;
+    ImGuiModFlags           NavMoveKeyMods;
+    ImGuiDir                NavMoveDir;                         // Direction of the move request (left/right/up/down)
+    ImGuiDir                NavMoveDirForDebug;
+    ImGuiDir                NavMoveClipDir;                     // FIXME-NAV: Describe the purpose of this better. Might want to rename?
+    ImRect                  NavScoringRect;                     // Rectangle used for scoring, in screen space. Based of window->NavRectRel[], modified for directional navigation scoring.
+    ImRect                  NavScoringNoClipRect;               // Some nav operations (such as PageUp/PageDown) enforce a region which clipper will attempt to always keep submitted
+    int                     NavScoringDebugCount;               // Metrics for debugging
+    int                     NavTabbingDir;                      // Generally -1 or +1, 0 when tabbing without a nav id
+    int                     NavTabbingCounter;                  // >0 when counting items for tabbing
+    ImGuiNavItemData        NavMoveResultLocal;                 // Best move request candidate within NavWindow
+    ImGuiNavItemData        NavMoveResultLocalVisible;          // Best move request candidate within NavWindow that are mostly visible (when using ImGuiNavMoveFlags_AlsoScoreVisibleSet flag)
+    ImGuiNavItemData        NavMoveResultOther;                 // Best move request candidate within NavWindow's flattened hierarchy (when using ImGuiWindowFlags_NavFlattened flag)
+    ImGuiNavItemData        NavTabbingResultFirst;              // First tabbing request candidate within NavWindow and flattened hierarchy
+
+    // Navigation: Windowing (CTRL+TAB for list, or Menu button + keys or directional pads to move/resize)
+    ImGuiWindow*            NavWindowingTarget;                 // Target window when doing CTRL+Tab (or Pad Menu + FocusPrev/Next), this window is temporarily displayed top-most!
+    ImGuiWindow*            NavWindowingTargetAnim;             // Record of last valid NavWindowingTarget until DimBgRatio and NavWindowingHighlightAlpha becomes 0.0f, so the fade-out can stay on it.
+    ImGuiWindow*            NavWindowingListWindow;             // Internal window actually listing the CTRL+Tab contents
+    float                   NavWindowingTimer;
+    float                   NavWindowingHighlightAlpha;
+    bool                    NavWindowingToggleLayer;
+
+    // Render
+    float                   DimBgRatio;                         // 0.0..1.0 animation when fading in a dimming background (for modal window and CTRL+TAB list)
+    ImGuiMouseCursor        MouseCursor;
+
+    // Drag and Drop
+    bool                    DragDropActive;
+    bool                    DragDropWithinSource;               // Set when within a BeginDragDropXXX/EndDragDropXXX block for a drag source.
+    bool                    DragDropWithinTarget;               // Set when within a BeginDragDropXXX/EndDragDropXXX block for a drag target.
+    ImGuiDragDropFlags      DragDropSourceFlags;
+    int                     DragDropSourceFrameCount;
+    int                     DragDropMouseButton;
+    ImGuiPayload            DragDropPayload;
+    ImRect                  DragDropTargetRect;                 // Store rectangle of current target candidate (we favor small targets when overlapping)
+    ImGuiID                 DragDropTargetId;
+    ImGuiDragDropFlags      DragDropAcceptFlags;
+    float                   DragDropAcceptIdCurrRectSurface;    // Target item surface (we resolve overlapping targets by prioritizing the smaller surface)
+    ImGuiID                 DragDropAcceptIdCurr;               // Target item id (set at the time of accepting the payload)
+    ImGuiID                 DragDropAcceptIdPrev;               // Target item id from previous frame (we need to store this to allow for overlapping drag and drop targets)
+    int                     DragDropAcceptFrameCount;           // Last time a target expressed a desire to accept the source
+    ImGuiID                 DragDropHoldJustPressedId;          // Set when holding a payload just made ButtonBehavior() return a press.
+    ImVector<unsigned char> DragDropPayloadBufHeap;             // We don't expose the ImVector<> directly, ImGuiPayload only holds pointer+size
+    unsigned char           DragDropPayloadBufLocal[16];        // Local buffer for small payloads
+
+    // Clipper
+    int                             ClipperTempDataStacked;
+    ImVector<ImGuiListClipperData>  ClipperTempData;
+
+    // Tables
+    ImGuiTable*                     CurrentTable;
+    int                             TablesTempDataStacked;      // Temporary table data size (because we leave previous instances undestructed, we generally don't use TablesTempData.Size)
+    ImVector<ImGuiTableTempData>    TablesTempData;             // Temporary table data (buffers reused/shared across instances, support nesting)
+    ImPool<ImGuiTable>              Tables;                     // Persistent table data
+    ImVector<float>                 TablesLastTimeActive;       // Last used timestamp of each tables (SOA, for efficient GC)
+    ImVector<ImDrawChannel>         DrawChannelsTempMergeBuffer;
+
+    // Tab bars
+    ImGuiTabBar*                    CurrentTabBar;
+    ImPool<ImGuiTabBar>             TabBars;
+    ImVector<ImGuiPtrOrIndex>       CurrentTabBarStack;
+    ImVector<ImGuiShrinkWidthItem>  ShrinkWidthBuffer;
+
+    // Widget state
+    ImVec2                  MouseLastValidPos;
+    ImGuiInputTextState     InputTextState;
+    ImFont                  InputTextPasswordFont;
+    ImGuiID                 TempInputId;                        // Temporary text input when CTRL+clicking on a slider, etc.
+    ImGuiColorEditFlags     ColorEditOptions;                   // Store user options for color edit widgets
+    float                   ColorEditLastHue;                   // Backup of last Hue associated to LastColor, so we can restore Hue in lossy RGB<>HSV round trips
+    float                   ColorEditLastSat;                   // Backup of last Saturation associated to LastColor, so we can restore Saturation in lossy RGB<>HSV round trips
+    ImU32                   ColorEditLastColor;                 // RGB value with alpha set to 0.
+    ImVec4                  ColorPickerRef;                     // Initial/reference color at the time of opening the color picker.
+    ImGuiComboPreviewData   ComboPreviewData;
+    float                   SliderGrabClickOffset;
+    float                   SliderCurrentAccum;                 // Accumulated slider delta when using navigation controls.
+    bool                    SliderCurrentAccumDirty;            // Has the accumulated slider delta changed since last time we tried to apply it?
+    bool                    DragCurrentAccumDirty;
+    float                   DragCurrentAccum;                   // Accumulator for dragging modification. Always high-precision, not rounded by end-user precision settings
+    float                   DragSpeedDefaultRatio;              // If speed == 0.0f, uses (max-min) * DragSpeedDefaultRatio
+    float                   ScrollbarClickDeltaToGrabCenter;    // Distance between mouse and center of grab box, normalized in parent space. Use storage?
+    float                   DisabledAlphaBackup;                // Backup for style.Alpha for BeginDisabled()
+    short                   DisabledStackSize;
+    short                   TooltipOverrideCount;
+    float                   TooltipSlowDelay;                   // Time before slow tooltips appears (FIXME: This is temporary until we merge in tooltip timer+priority work)
+    ImVector<char>          ClipboardHandlerData;               // If no custom clipboard handler is defined
+    ImVector<ImGuiID>       MenusIdSubmittedThisFrame;          // A list of menu IDs that were rendered at least once
+
+    // Platform support
+    ImGuiPlatformImeData    PlatformImeData;                    // Data updated by current frame
+    ImGuiPlatformImeData    PlatformImeDataPrev;                // Previous frame data (when changing we will call io.SetPlatformImeDataFn
+    char                    PlatformLocaleDecimalPoint;         // '.' or *localeconv()->decimal_point
+
+    // Settings
+    bool                    SettingsLoaded;
+    float                   SettingsDirtyTimer;                 // Save .ini Settings to memory when time reaches zero
+    ImGuiTextBuffer         SettingsIniData;                    // In memory .ini settings
+    ImVector<ImGuiSettingsHandler>      SettingsHandlers;       // List of .ini settings handlers
+    ImChunkStream<ImGuiWindowSettings>  SettingsWindows;        // ImGuiWindow .ini settings entries
+    ImChunkStream<ImGuiTableSettings>   SettingsTables;         // ImGuiTable .ini settings entries
+    ImVector<ImGuiContextHook>          Hooks;                  // Hooks for extensions (e.g. test engine)
+    ImGuiID                             HookIdNext;             // Next available HookId
+
+    // Capture/Logging
+    bool                    LogEnabled;                         // Currently capturing
+    ImGuiLogType            LogType;                            // Capture target
+    ImFileHandle            LogFile;                            // If != NULL log to stdout/ file
+    ImGuiTextBuffer         LogBuffer;                          // Accumulation buffer when log to clipboard. This is pointer so our GImGui static constructor doesn't call heap allocators.
+    const char*             LogNextPrefix;
+    const char*             LogNextSuffix;
+    float                   LogLinePosY;
+    bool                    LogLineFirstItem;
+    int                     LogDepthRef;
+    int                     LogDepthToExpand;
+    int                     LogDepthToExpandDefault;            // Default/stored value for LogDepthMaxExpand if not specified in the LogXXX function call.
+
+    // Debug Tools
+    ImGuiDebugLogFlags      DebugLogFlags;
+    ImGuiTextBuffer         DebugLogBuf;
+    bool                    DebugItemPickerActive;              // Item picker is active (started with DebugStartItemPicker())
+    ImGuiID                 DebugItemPickerBreakId;             // Will call IM_DEBUG_BREAK() when encountering this ID
+    ImGuiMetricsConfig      DebugMetricsConfig;
+    ImGuiStackTool          DebugStackTool;
+
+    // Misc
+    float                   FramerateSecPerFrame[120];          // Calculate estimate of framerate for user over the last 2 seconds.
+    int                     FramerateSecPerFrameIdx;
+    int                     FramerateSecPerFrameCount;
+    float                   FramerateSecPerFrameAccum;
+    int                     WantCaptureMouseNextFrame;          // Explicit capture override via SetNextFrameWantCaptureMouse()/SetNextFrameWantCaptureKeyboard(). Default to -1.
+    int                     WantCaptureKeyboardNextFrame;       // "
+    int                     WantTextInputNextFrame;
+    ImVector<char>          TempBuffer;                         // Temporary text buffer
+
+    ImGuiContext(ImFontAtlas* shared_font_atlas)
+    {
+        Initialized = false;
+        FontAtlasOwnedByContext = shared_font_atlas ? false : true;
+        Font = NULL;
+        FontSize = FontBaseSize = 0.0f;
+        IO.Fonts = shared_font_atlas ? shared_font_atlas : IM_NEW(ImFontAtlas)();
+        Time = 0.0f;
+        FrameCount = 0;
+        FrameCountEnded = FrameCountRendered = -1;
+        WithinFrameScope = WithinFrameScopeWithImplicitWindow = WithinEndChild = false;
+        GcCompactAll = false;
+        TestEngineHookItems = false;
+        TestEngine = NULL;
+
+        WindowsActiveCount = 0;
+        CurrentWindow = NULL;
+        HoveredWindow = NULL;
+        HoveredWindowUnderMovingWindow = NULL;
+        MovingWindow = NULL;
+        WheelingWindow = NULL;
+        WheelingWindowTimer = 0.0f;
+
+        DebugHookIdInfo = 0;
+        HoveredId = HoveredIdPreviousFrame = 0;
+        HoveredIdAllowOverlap = false;
+        HoveredIdUsingMouseWheel = HoveredIdPreviousFrameUsingMouseWheel = false;
+        HoveredIdDisabled = false;
+        HoveredIdTimer = HoveredIdNotActiveTimer = 0.0f;
+        ActiveId = 0;
+        ActiveIdIsAlive = 0;
+        ActiveIdTimer = 0.0f;
+        ActiveIdIsJustActivated = false;
+        ActiveIdAllowOverlap = false;
+        ActiveIdNoClearOnFocusLoss = false;
+        ActiveIdHasBeenPressedBefore = false;
+        ActiveIdHasBeenEditedBefore = false;
+        ActiveIdHasBeenEditedThisFrame = false;
+        ActiveIdClickOffset = ImVec2(-1, -1);
+        ActiveIdWindow = NULL;
+        ActiveIdSource = ImGuiInputSource_None;
+        ActiveIdMouseButton = -1;
+        ActiveIdPreviousFrame = 0;
+        ActiveIdPreviousFrameIsAlive = false;
+        ActiveIdPreviousFrameHasBeenEditedBefore = false;
+        ActiveIdPreviousFrameWindow = NULL;
+        LastActiveId = 0;
+        LastActiveIdTimer = 0.0f;
+
+        ActiveIdUsingMouseWheel = false;
+        ActiveIdUsingNavDirMask = 0x00;
+        ActiveIdUsingNavInputMask = 0x00;
+        ActiveIdUsingKeyInputMask.ClearAllBits();
+
+        CurrentItemFlags = ImGuiItemFlags_None;
+        BeginMenuCount = 0;
+
+        NavWindow = NULL;
+        NavId = NavFocusScopeId = NavActivateId = NavActivateDownId = NavActivatePressedId = NavActivateInputId = 0;
+        NavJustMovedToId = NavJustMovedToFocusScopeId = NavNextActivateId = 0;
+        NavActivateFlags = NavNextActivateFlags = ImGuiActivateFlags_None;
+        NavJustMovedToKeyMods = ImGuiModFlags_None;
+        NavInputSource = ImGuiInputSource_None;
+        NavLayer = ImGuiNavLayer_Main;
+        NavIdIsAlive = false;
+        NavMousePosDirty = false;
+        NavDisableHighlight = true;
+        NavDisableMouseHover = false;
+        NavAnyRequest = false;
+        NavInitRequest = false;
+        NavInitRequestFromMove = false;
+        NavInitResultId = 0;
+        NavMoveSubmitted = false;
+        NavMoveScoringItems = false;
+        NavMoveForwardToNextFrame = false;
+        NavMoveFlags = ImGuiNavMoveFlags_None;
+        NavMoveScrollFlags = ImGuiScrollFlags_None;
+        NavMoveKeyMods = ImGuiModFlags_None;
+        NavMoveDir = NavMoveDirForDebug = NavMoveClipDir = ImGuiDir_None;
+        NavScoringDebugCount = 0;
+        NavTabbingDir = 0;
+        NavTabbingCounter = 0;
+
+        NavWindowingTarget = NavWindowingTargetAnim = NavWindowingListWindow = NULL;
+        NavWindowingTimer = NavWindowingHighlightAlpha = 0.0f;
+        NavWindowingToggleLayer = false;
+
+        DimBgRatio = 0.0f;
+        MouseCursor = ImGuiMouseCursor_Arrow;
+
+        DragDropActive = DragDropWithinSource = DragDropWithinTarget = false;
+        DragDropSourceFlags = ImGuiDragDropFlags_None;
+        DragDropSourceFrameCount = -1;
+        DragDropMouseButton = -1;
+        DragDropTargetId = 0;
+        DragDropAcceptFlags = ImGuiDragDropFlags_None;
+        DragDropAcceptIdCurrRectSurface = 0.0f;
+        DragDropAcceptIdPrev = DragDropAcceptIdCurr = 0;
+        DragDropAcceptFrameCount = -1;
+        DragDropHoldJustPressedId = 0;
+        memset(DragDropPayloadBufLocal, 0, sizeof(DragDropPayloadBufLocal));
+
+        ClipperTempDataStacked = 0;
+
+        CurrentTable = NULL;
+        TablesTempDataStacked = 0;
+        CurrentTabBar = NULL;
+
+        TempInputId = 0;
+        ColorEditOptions = ImGuiColorEditFlags_DefaultOptions_;
+        ColorEditLastHue = ColorEditLastSat = 0.0f;
+        ColorEditLastColor = 0;
+        SliderGrabClickOffset = 0.0f;
+        SliderCurrentAccum = 0.0f;
+        SliderCurrentAccumDirty = false;
+        DragCurrentAccumDirty = false;
+        DragCurrentAccum = 0.0f;
+        DragSpeedDefaultRatio = 1.0f / 100.0f;
+        DisabledAlphaBackup = 0.0f;
+        DisabledStackSize = 0;
+        ScrollbarClickDeltaToGrabCenter = 0.0f;
+        TooltipOverrideCount = 0;
+        TooltipSlowDelay = 0.50f;
+
+        PlatformImeData.InputPos = ImVec2(0.0f, 0.0f);
+        PlatformImeDataPrev.InputPos = ImVec2(-1.0f, -1.0f); // Different to ensure initial submission
+        PlatformLocaleDecimalPoint = '.';
+
+        SettingsLoaded = false;
+        SettingsDirtyTimer = 0.0f;
+        HookIdNext = 0;
+
+        LogEnabled = false;
+        LogType = ImGuiLogType_None;
+        LogNextPrefix = LogNextSuffix = NULL;
+        LogFile = NULL;
+        LogLinePosY = FLT_MAX;
+        LogLineFirstItem = false;
+        LogDepthRef = 0;
+        LogDepthToExpand = LogDepthToExpandDefault = 2;
+
+        DebugLogFlags = ImGuiDebugLogFlags_OutputToTTY;
+        DebugItemPickerActive = false;
+        DebugItemPickerBreakId = 0;
+
+        memset(FramerateSecPerFrame, 0, sizeof(FramerateSecPerFrame));
+        FramerateSecPerFrameIdx = FramerateSecPerFrameCount = 0;
+        FramerateSecPerFrameAccum = 0.0f;
+        WantCaptureMouseNextFrame = WantCaptureKeyboardNextFrame = WantTextInputNextFrame = -1;
+    }
+};
+
+//-----------------------------------------------------------------------------
+// [SECTION] ImGuiWindowTempData, ImGuiWindow
+//-----------------------------------------------------------------------------
+
+// Transient per-window data, reset at the beginning of the frame. This used to be called ImGuiDrawContext, hence the DC variable name in ImGuiWindow.
+// (That's theory, in practice the delimitation between ImGuiWindow and ImGuiWindowTempData is quite tenuous and could be reconsidered..)
+// (This doesn't need a constructor because we zero-clear it as part of ImGuiWindow and all frame-temporary data are setup on Begin)
+struct IMGUI_API ImGuiWindowTempData
+{
+    // Layout
+    ImVec2                  CursorPos;              // Current emitting position, in absolute coordinates.
+    ImVec2                  CursorPosPrevLine;
+    ImVec2                  CursorStartPos;         // Initial position after Begin(), generally ~ window position + WindowPadding.
+    ImVec2                  CursorMaxPos;           // Used to implicitly calculate ContentSize at the beginning of next frame, for scrolling range and auto-resize. Always growing during the frame.
+    ImVec2                  IdealMaxPos;            // Used to implicitly calculate ContentSizeIdeal at the beginning of next frame, for auto-resize only. Always growing during the frame.
+    ImVec2                  CurrLineSize;
+    ImVec2                  PrevLineSize;
+    float                   CurrLineTextBaseOffset; // Baseline offset (0.0f by default on a new line, generally == style.FramePadding.y when a framed item has been added).
+    float                   PrevLineTextBaseOffset;
+    bool                    IsSameLine;
+    ImVec1                  Indent;                 // Indentation / start position from left of window (increased by TreePush/TreePop, etc.)
+    ImVec1                  ColumnsOffset;          // Offset to the current column (if ColumnsCurrent > 0). FIXME: This and the above should be a stack to allow use cases like Tree->Column->Tree. Need revamp columns API.
+    ImVec1                  GroupOffset;
+    ImVec2                  CursorStartPosLossyness;// Record the loss of precision of CursorStartPos due to really large scrolling amount. This is used by clipper to compensentate and fix the most common use case of large scroll area.
+
+    // Keyboard/Gamepad navigation
+    ImGuiNavLayer           NavLayerCurrent;        // Current layer, 0..31 (we currently only use 0..1)
+    short                   NavLayersActiveMask;    // Which layers have been written to (result from previous frame)
+    short                   NavLayersActiveMaskNext;// Which layers have been written to (accumulator for current frame)
+    ImGuiID                 NavFocusScopeIdCurrent; // Current focus scope ID while appending
+    bool                    NavHideHighlightOneFrame;
+    bool                    NavHasScroll;           // Set when scrolling can be used (ScrollMax > 0.0f)
+
+    // Miscellaneous
+    bool                    MenuBarAppending;       // FIXME: Remove this
+    ImVec2                  MenuBarOffset;          // MenuBarOffset.x is sort of equivalent of a per-layer CursorPos.x, saved/restored as we switch to the menu bar. The only situation when MenuBarOffset.y is > 0 if when (SafeAreaPadding.y > FramePadding.y), often used on TVs.
+    ImGuiMenuColumns        MenuColumns;            // Simplified columns storage for menu items measurement
+    int                     TreeDepth;              // Current tree depth.
+    ImU32                   TreeJumpToParentOnPopMask; // Store a copy of !g.NavIdIsAlive for TreeDepth 0..31.. Could be turned into a ImU64 if necessary.
+    ImVector<ImGuiWindow*>  ChildWindows;
+    ImGuiStorage*           StateStorage;           // Current persistent per-window storage (store e.g. tree node open/close state)
+    ImGuiOldColumns*        CurrentColumns;         // Current columns set
+    int                     CurrentTableIdx;        // Current table index (into g.Tables)
+    ImGuiLayoutType         LayoutType;
+    ImGuiLayoutType         ParentLayoutType;       // Layout type of parent window at the time of Begin()
+
+    // Local parameters stacks
+    // We store the current settings outside of the vectors to increase memory locality (reduce cache misses). The vectors are rarely modified. Also it allows us to not heap allocate for short-lived windows which are not using those settings.
+    float                   ItemWidth;              // Current item width (>0.0: width in pixels, <0.0: align xx pixels to the right of window).
+    float                   TextWrapPos;            // Current text wrap pos.
+    ImVector<float>         ItemWidthStack;         // Store item widths to restore (attention: .back() is not == ItemWidth)
+    ImVector<float>         TextWrapPosStack;       // Store text wrap pos to restore (attention: .back() is not == TextWrapPos)
+};
+
+// Storage for one window
+struct IMGUI_API ImGuiWindow
+{
+    char*                   Name;                               // Window name, owned by the window.
+    ImGuiID                 ID;                                 // == ImHashStr(Name)
+    ImGuiWindowFlags        Flags;                              // See enum ImGuiWindowFlags_
+    ImGuiViewportP*         Viewport;                           // Always set in Begin(). Inactive windows may have a NULL value here if their viewport was discarded.
+    ImVec2                  Pos;                                // Position (always rounded-up to nearest pixel)
+    ImVec2                  Size;                               // Current size (==SizeFull or collapsed title bar size)
+    ImVec2                  SizeFull;                           // Size when non collapsed
+    ImVec2                  ContentSize;                        // Size of contents/scrollable client area (calculated from the extents reach of the cursor) from previous frame. Does not include window decoration or window padding.
+    ImVec2                  ContentSizeIdeal;
+    ImVec2                  ContentSizeExplicit;                // Size of contents/scrollable client area explicitly request by the user via SetNextWindowContentSize().
+    ImVec2                  WindowPadding;                      // Window padding at the time of Begin().
+    float                   WindowRounding;                     // Window rounding at the time of Begin(). May be clamped lower to avoid rendering artifacts with title bar, menu bar etc.
+    float                   WindowBorderSize;                   // Window border size at the time of Begin().
+    int                     NameBufLen;                         // Size of buffer storing Name. May be larger than strlen(Name)!
+    ImGuiID                 MoveId;                             // == window->GetID("#MOVE")
+    ImGuiID                 ChildId;                            // ID of corresponding item in parent window (for navigation to return from child window to parent window)
+    ImVec2                  Scroll;
+    ImVec2                  ScrollMax;
+    ImVec2                  ScrollTarget;                       // target scroll position. stored as cursor position with scrolling canceled out, so the highest point is always 0.0f. (FLT_MAX for no change)
+    ImVec2                  ScrollTargetCenterRatio;            // 0.0f = scroll so that target position is at top, 0.5f = scroll so that target position is centered
+    ImVec2                  ScrollTargetEdgeSnapDist;           // 0.0f = no snapping, >0.0f snapping threshold
+    ImVec2                  ScrollbarSizes;                     // Size taken by each scrollbars on their smaller axis. Pay attention! ScrollbarSizes.x == width of the vertical scrollbar, ScrollbarSizes.y = height of the horizontal scrollbar.
+    bool                    ScrollbarX, ScrollbarY;             // Are scrollbars visible?
+    bool                    Active;                             // Set to true on Begin(), unless Collapsed
+    bool                    WasActive;
+    bool                    WriteAccessed;                      // Set to true when any widget access the current window
+    bool                    Collapsed;                          // Set when collapsing window to become only title-bar
+    bool                    WantCollapseToggle;
+    bool                    SkipItems;                          // Set when items can safely be all clipped (e.g. window not visible or collapsed)
+    bool                    Appearing;                          // Set during the frame where the window is appearing (or re-appearing)
+    bool                    Hidden;                             // Do not display (== HiddenFrames*** > 0)
+    bool                    IsFallbackWindow;                   // Set on the "Debug##Default" window.
+    bool                    IsExplicitChild;                    // Set when passed _ChildWindow, left to false by BeginDocked()
+    bool                    HasCloseButton;                     // Set when the window has a close button (p_open != NULL)
+    signed char             ResizeBorderHeld;                   // Current border being held for resize (-1: none, otherwise 0-3)
+    short                   BeginCount;                         // Number of Begin() during the current frame (generally 0 or 1, 1+ if appending via multiple Begin/End pairs)
+    short                   BeginOrderWithinParent;             // Begin() order within immediate parent window, if we are a child window. Otherwise 0.
+    short                   BeginOrderWithinContext;            // Begin() order within entire imgui context. This is mostly used for debugging submission order related issues.
+    short                   FocusOrder;                         // Order within WindowsFocusOrder[], altered when windows are focused.
+    ImGuiID                 PopupId;                            // ID in the popup stack when this window is used as a popup/menu (because we use generic Name/ID for recycling)
+    ImS8                    AutoFitFramesX, AutoFitFramesY;
+    ImS8                    AutoFitChildAxises;
+    bool                    AutoFitOnlyGrows;
+    ImGuiDir                AutoPosLastDirection;
+    ImS8                    HiddenFramesCanSkipItems;           // Hide the window for N frames
+    ImS8                    HiddenFramesCannotSkipItems;        // Hide the window for N frames while allowing items to be submitted so we can measure their size
+    ImS8                    HiddenFramesForRenderOnly;          // Hide the window until frame N at Render() time only
+    ImS8                    DisableInputsFrames;                // Disable window interactions for N frames
+    ImGuiCond               SetWindowPosAllowFlags : 8;         // store acceptable condition flags for SetNextWindowPos() use.
+    ImGuiCond               SetWindowSizeAllowFlags : 8;        // store acceptable condition flags for SetNextWindowSize() use.
+    ImGuiCond               SetWindowCollapsedAllowFlags : 8;   // store acceptable condition flags for SetNextWindowCollapsed() use.
+    ImVec2                  SetWindowPosVal;                    // store window position when using a non-zero Pivot (position set needs to be processed when we know the window size)
+    ImVec2                  SetWindowPosPivot;                  // store window pivot for positioning. ImVec2(0, 0) when positioning from top-left corner; ImVec2(0.5f, 0.5f) for centering; ImVec2(1, 1) for bottom right.
+
+    ImVector<ImGuiID>       IDStack;                            // ID stack. ID are hashes seeded with the value at the top of the stack. (In theory this should be in the TempData structure)
+    ImGuiWindowTempData     DC;                                 // Temporary per-window data, reset at the beginning of the frame. This used to be called ImGuiDrawContext, hence the "DC" variable name.
+
+    // The best way to understand what those rectangles are is to use the 'Metrics->Tools->Show Windows Rectangles' viewer.
+    // The main 'OuterRect', omitted as a field, is window->Rect().
+    ImRect                  OuterRectClipped;                   // == Window->Rect() just after setup in Begin(). == window->Rect() for root window.
+    ImRect                  InnerRect;                          // Inner rectangle (omit title bar, menu bar, scroll bar)
+    ImRect                  InnerClipRect;                      // == InnerRect shrunk by WindowPadding*0.5f on each side, clipped within viewport or parent clip rect.
+    ImRect                  WorkRect;                           // Initially covers the whole scrolling region. Reduced by containers e.g columns/tables when active. Shrunk by WindowPadding*1.0f on each side. This is meant to replace ContentRegionRect over time (from 1.71+ onward).
+    ImRect                  ParentWorkRect;                     // Backup of WorkRect before entering a container such as columns/tables. Used by e.g. SpanAllColumns functions to easily access. Stacked containers are responsible for maintaining this. // FIXME-WORKRECT: Could be a stack?
+    ImRect                  ClipRect;                           // Current clipping/scissoring rectangle, evolve as we are using PushClipRect(), etc. == DrawList->clip_rect_stack.back().
+    ImRect                  ContentRegionRect;                  // FIXME: This is currently confusing/misleading. It is essentially WorkRect but not handling of scrolling. We currently rely on it as right/bottom aligned sizing operation need some size to rely on.
+    ImVec2ih                HitTestHoleSize;                    // Define an optional rectangular hole where mouse will pass-through the window.
+    ImVec2ih                HitTestHoleOffset;
+
+    int                     LastFrameActive;                    // Last frame number the window was Active.
+    float                   LastTimeActive;                     // Last timestamp the window was Active (using float as we don't need high precision there)
+    float                   ItemWidthDefault;
+    ImGuiStorage            StateStorage;
+    ImVector<ImGuiOldColumns> ColumnsStorage;
+    float                   FontWindowScale;                    // User scale multiplier per-window, via SetWindowFontScale()
+    int                     SettingsOffset;                     // Offset into SettingsWindows[] (offsets are always valid as we only grow the array from the back)
+
+    ImDrawList*             DrawList;                           // == &DrawListInst (for backward compatibility reason with code using imgui_internal.h we keep this a pointer)
+    ImDrawList              DrawListInst;
+    ImGuiWindow*            ParentWindow;                       // If we are a child _or_ popup _or_ docked window, this is pointing to our parent. Otherwise NULL.
+    ImGuiWindow*            ParentWindowInBeginStack;
+    ImGuiWindow*            RootWindow;                         // Point to ourself or first ancestor that is not a child window. Doesn't cross through popups/dock nodes.
+    ImGuiWindow*            RootWindowPopupTree;                // Point to ourself or first ancestor that is not a child window. Cross through popups parent<>child.
+    ImGuiWindow*            RootWindowForTitleBarHighlight;     // Point to ourself or first ancestor which will display TitleBgActive color when this window is active.
+    ImGuiWindow*            RootWindowForNav;                   // Point to ourself or first ancestor which doesn't have the NavFlattened flag.
+
+    ImGuiWindow*            NavLastChildNavWindow;              // When going to the menu bar, we remember the child window we came from. (This could probably be made implicit if we kept g.Windows sorted by last focused including child window.)
+    ImGuiID                 NavLastIds[ImGuiNavLayer_COUNT];    // Last known NavId for this window, per layer (0/1)
+    ImRect                  NavRectRel[ImGuiNavLayer_COUNT];    // Reference rectangle, in window relative space
+
+    int                     MemoryDrawListIdxCapacity;          // Backup of last idx/vtx count, so when waking up the window we can preallocate and avoid iterative alloc/copy
+    int                     MemoryDrawListVtxCapacity;
+    bool                    MemoryCompacted;                    // Set when window extraneous data have been garbage collected
+
+public:
+    ImGuiWindow(ImGuiContext* context, const char* name);
+    ~ImGuiWindow();
+
+    ImGuiID     GetID(const char* str, const char* str_end = NULL);
+    ImGuiID     GetID(const void* ptr);
+    ImGuiID     GetID(int n);
+    ImGuiID     GetIDFromRectangle(const ImRect& r_abs);
+
+    // We don't use g.FontSize because the window may be != g.CurrentWidow.
+    ImRect      Rect() const            { return ImRect(Pos.x, Pos.y, Pos.x + Size.x, Pos.y + Size.y); }
+    float       CalcFontSize() const    { ImGuiContext& g = *GImGui; float scale = g.FontBaseSize * FontWindowScale; if (ParentWindow) scale *= ParentWindow->FontWindowScale; return scale; }
+    float       TitleBarHeight() const  { ImGuiContext& g = *GImGui; return (Flags & ImGuiWindowFlags_NoTitleBar) ? 0.0f : CalcFontSize() + g.Style.FramePadding.y * 2.0f; }
+    ImRect      TitleBarRect() const    { return ImRect(Pos, ImVec2(Pos.x + SizeFull.x, Pos.y + TitleBarHeight())); }
+    float       MenuBarHeight() const   { ImGuiContext& g = *GImGui; return (Flags & ImGuiWindowFlags_MenuBar) ? DC.MenuBarOffset.y + CalcFontSize() + g.Style.FramePadding.y * 2.0f : 0.0f; }
+    ImRect      MenuBarRect() const     { float y1 = Pos.y + TitleBarHeight(); return ImRect(Pos.x, y1, Pos.x + SizeFull.x, y1 + MenuBarHeight()); }
+};
+
+//-----------------------------------------------------------------------------
+// [SECTION] Tab bar, Tab item support
+//-----------------------------------------------------------------------------
+
+// Extend ImGuiTabBarFlags_
+enum ImGuiTabBarFlagsPrivate_
+{
+    ImGuiTabBarFlags_DockNode                   = 1 << 20,  // Part of a dock node [we don't use this in the master branch but it facilitate branch syncing to keep this around]
+    ImGuiTabBarFlags_IsFocused                  = 1 << 21,
+    ImGuiTabBarFlags_SaveSettings               = 1 << 22   // FIXME: Settings are handled by the docking system, this only request the tab bar to mark settings dirty when reordering tabs
+};
+
+// Extend ImGuiTabItemFlags_
+enum ImGuiTabItemFlagsPrivate_
+{
+    ImGuiTabItemFlags_SectionMask_              = ImGuiTabItemFlags_Leading | ImGuiTabItemFlags_Trailing,
+    ImGuiTabItemFlags_NoCloseButton             = 1 << 20,  // Track whether p_open was set or not (we'll need this info on the next frame to recompute ContentWidth during layout)
+    ImGuiTabItemFlags_Button                    = 1 << 21   // Used by TabItemButton, change the tab item behavior to mimic a button
+};
+
+// Storage for one active tab item (sizeof() 40 bytes)
+struct ImGuiTabItem
+{
+    ImGuiID             ID;
+    ImGuiTabItemFlags   Flags;
+    int                 LastFrameVisible;
+    int                 LastFrameSelected;      // This allows us to infer an ordered list of the last activated tabs with little maintenance
+    float               Offset;                 // Position relative to beginning of tab
+    float               Width;                  // Width currently displayed
+    float               ContentWidth;           // Width of label, stored during BeginTabItem() call
+    float               RequestedWidth;         // Width optionally requested by caller, -1.0f is unused
+    ImS32               NameOffset;             // When Window==NULL, offset to name within parent ImGuiTabBar::TabsNames
+    ImS16               BeginOrder;             // BeginTabItem() order, used to re-order tabs after toggling ImGuiTabBarFlags_Reorderable
+    ImS16               IndexDuringLayout;      // Index only used during TabBarLayout()
+    bool                WantClose;              // Marked as closed by SetTabItemClosed()
+
+    ImGuiTabItem()      { memset(this, 0, sizeof(*this)); LastFrameVisible = LastFrameSelected = -1; NameOffset = -1; BeginOrder = IndexDuringLayout = -1; }
+};
+
+// Storage for a tab bar (sizeof() 152 bytes)
+struct IMGUI_API ImGuiTabBar
+{
+    ImVector<ImGuiTabItem> Tabs;
+    ImGuiTabBarFlags    Flags;
+    ImGuiID             ID;                     // Zero for tab-bars used by docking
+    ImGuiID             SelectedTabId;          // Selected tab/window
+    ImGuiID             NextSelectedTabId;      // Next selected tab/window. Will also trigger a scrolling animation
+    ImGuiID             VisibleTabId;           // Can occasionally be != SelectedTabId (e.g. when previewing contents for CTRL+TAB preview)
+    int                 CurrFrameVisible;
+    int                 PrevFrameVisible;
+    ImRect              BarRect;
+    float               CurrTabsContentsHeight;
+    float               PrevTabsContentsHeight; // Record the height of contents submitted below the tab bar
+    float               WidthAllTabs;           // Actual width of all tabs (locked during layout)
+    float               WidthAllTabsIdeal;      // Ideal width if all tabs were visible and not clipped
+    float               ScrollingAnim;
+    float               ScrollingTarget;
+    float               ScrollingTargetDistToVisibility;
+    float               ScrollingSpeed;
+    float               ScrollingRectMinX;
+    float               ScrollingRectMaxX;
+    ImGuiID             ReorderRequestTabId;
+    ImS16               ReorderRequestOffset;
+    ImS8                BeginCount;
+    bool                WantLayout;
+    bool                VisibleTabWasSubmitted;
+    bool                TabsAddedNew;           // Set to true when a new tab item or button has been added to the tab bar during last frame
+    ImS16               TabsActiveCount;        // Number of tabs submitted this frame.
+    ImS16               LastTabItemIdx;         // Index of last BeginTabItem() tab for use by EndTabItem()
+    float               ItemSpacingY;
+    ImVec2              FramePadding;           // style.FramePadding locked at the time of BeginTabBar()
+    ImVec2              BackupCursorPos;
+    ImGuiTextBuffer     TabsNames;              // For non-docking tab bar we re-append names in a contiguous buffer.
+
+    ImGuiTabBar();
+    int                 GetTabOrder(const ImGuiTabItem* tab) const  { return Tabs.index_from_ptr(tab); }
+    const char*         GetTabName(const ImGuiTabItem* tab) const
+    {
+        IM_ASSERT(tab->NameOffset != -1 && tab->NameOffset < TabsNames.Buf.Size);
+        return TabsNames.Buf.Data + tab->NameOffset;
+    }
+};
+
+//-----------------------------------------------------------------------------
+// [SECTION] Table support
+//-----------------------------------------------------------------------------
+
+#define IM_COL32_DISABLE                IM_COL32(0,0,0,1)   // Special sentinel code which cannot be used as a regular color.
+#define IMGUI_TABLE_MAX_COLUMNS         64                  // sizeof(ImU64) * 8. This is solely because we frequently encode columns set in a ImU64.
+#define IMGUI_TABLE_MAX_DRAW_CHANNELS   (4 + 64 * 2)        // See TableSetupDrawChannels()
+
+// Our current column maximum is 64 but we may raise that in the future.
+typedef ImS8 ImGuiTableColumnIdx;
+typedef ImU8 ImGuiTableDrawChannelIdx;
+
+// [Internal] sizeof() ~ 104
+// We use the terminology "Enabled" to refer to a column that is not Hidden by user/api.
+// We use the terminology "Clipped" to refer to a column that is out of sight because of scrolling/clipping.
+// This is in contrast with some user-facing api such as IsItemVisible() / IsRectVisible() which use "Visible" to mean "not clipped".
+struct ImGuiTableColumn
+{
+    ImGuiTableColumnFlags   Flags;                          // Flags after some patching (not directly same as provided by user). See ImGuiTableColumnFlags_
+    float                   WidthGiven;                     // Final/actual width visible == (MaxX - MinX), locked in TableUpdateLayout(). May be > WidthRequest to honor minimum width, may be < WidthRequest to honor shrinking columns down in tight space.
+    float                   MinX;                           // Absolute positions
+    float                   MaxX;
+    float                   WidthRequest;                   // Master width absolute value when !(Flags & _WidthStretch). When Stretch this is derived every frame from StretchWeight in TableUpdateLayout()
+    float                   WidthAuto;                      // Automatic width
+    float                   StretchWeight;                  // Master width weight when (Flags & _WidthStretch). Often around ~1.0f initially.
+    float                   InitStretchWeightOrWidth;       // Value passed to TableSetupColumn(). For Width it is a content width (_without padding_).
+    ImRect                  ClipRect;                       // Clipping rectangle for the column
+    ImGuiID                 UserID;                         // Optional, value passed to TableSetupColumn()
+    float                   WorkMinX;                       // Contents region min ~(MinX + CellPaddingX + CellSpacingX1) == cursor start position when entering column
+    float                   WorkMaxX;                       // Contents region max ~(MaxX - CellPaddingX - CellSpacingX2)
+    float                   ItemWidth;                      // Current item width for the column, preserved across rows
+    float                   ContentMaxXFrozen;              // Contents maximum position for frozen rows (apart from headers), from which we can infer content width.
+    float                   ContentMaxXUnfrozen;
+    float                   ContentMaxXHeadersUsed;         // Contents maximum position for headers rows (regardless of freezing). TableHeader() automatically softclip itself + report ideal desired size, to avoid creating extraneous draw calls
+    float                   ContentMaxXHeadersIdeal;
+    ImS16                   NameOffset;                     // Offset into parent ColumnsNames[]
+    ImGuiTableColumnIdx     DisplayOrder;                   // Index within Table's IndexToDisplayOrder[] (column may be reordered by users)
+    ImGuiTableColumnIdx     IndexWithinEnabledSet;          // Index within enabled/visible set (<= IndexToDisplayOrder)
+    ImGuiTableColumnIdx     PrevEnabledColumn;              // Index of prev enabled/visible column within Columns[], -1 if first enabled/visible column
+    ImGuiTableColumnIdx     NextEnabledColumn;              // Index of next enabled/visible column within Columns[], -1 if last enabled/visible column
+    ImGuiTableColumnIdx     SortOrder;                      // Index of this column within sort specs, -1 if not sorting on this column, 0 for single-sort, may be >0 on multi-sort
+    ImGuiTableDrawChannelIdx DrawChannelCurrent;            // Index within DrawSplitter.Channels[]
+    ImGuiTableDrawChannelIdx DrawChannelFrozen;             // Draw channels for frozen rows (often headers)
+    ImGuiTableDrawChannelIdx DrawChannelUnfrozen;           // Draw channels for unfrozen rows
+    bool                    IsEnabled;                      // IsUserEnabled && (Flags & ImGuiTableColumnFlags_Disabled) == 0
+    bool                    IsUserEnabled;                  // Is the column not marked Hidden by the user? (unrelated to being off view, e.g. clipped by scrolling).
+    bool                    IsUserEnabledNextFrame;
+    bool                    IsVisibleX;                     // Is actually in view (e.g. overlapping the host window clipping rectangle, not scrolled).
+    bool                    IsVisibleY;
+    bool                    IsRequestOutput;                // Return value for TableSetColumnIndex() / TableNextColumn(): whether we request user to output contents or not.
+    bool                    IsSkipItems;                    // Do we want item submissions to this column to be completely ignored (no layout will happen).
+    bool                    IsPreserveWidthAuto;
+    ImS8                    NavLayerCurrent;                // ImGuiNavLayer in 1 byte
+    ImU8                    AutoFitQueue;                   // Queue of 8 values for the next 8 frames to request auto-fit
+    ImU8                    CannotSkipItemsQueue;           // Queue of 8 values for the next 8 frames to disable Clipped/SkipItem
+    ImU8                    SortDirection : 2;              // ImGuiSortDirection_Ascending or ImGuiSortDirection_Descending
+    ImU8                    SortDirectionsAvailCount : 2;   // Number of available sort directions (0 to 3)
+    ImU8                    SortDirectionsAvailMask : 4;    // Mask of available sort directions (1-bit each)
+    ImU8                    SortDirectionsAvailList;        // Ordered of available sort directions (2-bits each)
+
+    ImGuiTableColumn()
+    {
+        memset(this, 0, sizeof(*this));
+        StretchWeight = WidthRequest = -1.0f;
+        NameOffset = -1;
+        DisplayOrder = IndexWithinEnabledSet = -1;
+        PrevEnabledColumn = NextEnabledColumn = -1;
+        SortOrder = -1;
+        SortDirection = ImGuiSortDirection_None;
+        DrawChannelCurrent = DrawChannelFrozen = DrawChannelUnfrozen = (ImU8)-1;
+    }
+};
+
+// Transient cell data stored per row.
+// sizeof() ~ 6
+struct ImGuiTableCellData
+{
+    ImU32                       BgColor;    // Actual color
+    ImGuiTableColumnIdx         Column;     // Column number
+};
+
+// Per-instance data that needs preserving across frames (seemingly most others do not need to be preserved aside from debug needs, does that needs they could be moved to ImGuiTableTempData ?)
+struct ImGuiTableInstanceData
+{
+    float                       LastOuterHeight;            // Outer height from last frame // FIXME: multi-instance issue (#3955)
+    float                       LastFirstRowHeight;         // Height of first row from last frame // FIXME: possible multi-instance issue?
+
+    ImGuiTableInstanceData()    { LastOuterHeight = LastFirstRowHeight = 0.0f; }
+};
+
+// FIXME-TABLE: more transient data could be stored in a per-stacked table structure: DrawSplitter, SortSpecs, incoming RowData
+struct IMGUI_API ImGuiTable
+{
+    ImGuiID                     ID;
+    ImGuiTableFlags             Flags;
+    void*                       RawData;                    // Single allocation to hold Columns[], DisplayOrderToIndex[] and RowCellData[]
+    ImGuiTableTempData*         TempData;                   // Transient data while table is active. Point within g.CurrentTableStack[]
+    ImSpan<ImGuiTableColumn>    Columns;                    // Point within RawData[]
+    ImSpan<ImGuiTableColumnIdx> DisplayOrderToIndex;        // Point within RawData[]. Store display order of columns (when not reordered, the values are 0...Count-1)
+    ImSpan<ImGuiTableCellData>  RowCellData;                // Point within RawData[]. Store cells background requests for current row.
+    ImU64                       EnabledMaskByDisplayOrder;  // Column DisplayOrder -> IsEnabled map
+    ImU64                       EnabledMaskByIndex;         // Column Index -> IsEnabled map (== not hidden by user/api) in a format adequate for iterating column without touching cold data
+    ImU64                       VisibleMaskByIndex;         // Column Index -> IsVisibleX|IsVisibleY map (== not hidden by user/api && not hidden by scrolling/cliprect)
+    ImU64                       RequestOutputMaskByIndex;   // Column Index -> IsVisible || AutoFit (== expect user to submit items)
+    ImGuiTableFlags             SettingsLoadedFlags;        // Which data were loaded from the .ini file (e.g. when order is not altered we won't save order)
+    int                         SettingsOffset;             // Offset in g.SettingsTables
+    int                         LastFrameActive;
+    int                         ColumnsCount;               // Number of columns declared in BeginTable()
+    int                         CurrentRow;
+    int                         CurrentColumn;
+    ImS16                       InstanceCurrent;            // Count of BeginTable() calls with same ID in the same frame (generally 0). This is a little bit similar to BeginCount for a window, but multiple table with same ID look are multiple tables, they are just synched.
+    ImS16                       InstanceInteracted;         // Mark which instance (generally 0) of the same ID is being interacted with
+    float                       RowPosY1;
+    float                       RowPosY2;
+    float                       RowMinHeight;               // Height submitted to TableNextRow()
+    float                       RowTextBaseline;
+    float                       RowIndentOffsetX;
+    ImGuiTableRowFlags          RowFlags : 16;              // Current row flags, see ImGuiTableRowFlags_
+    ImGuiTableRowFlags          LastRowFlags : 16;
+    int                         RowBgColorCounter;          // Counter for alternating background colors (can be fast-forwarded by e.g clipper), not same as CurrentRow because header rows typically don't increase this.
+    ImU32                       RowBgColor[2];              // Background color override for current row.
+    ImU32                       BorderColorStrong;
+    ImU32                       BorderColorLight;
+    float                       BorderX1;
+    float                       BorderX2;
+    float                       HostIndentX;
+    float                       MinColumnWidth;
+    float                       OuterPaddingX;
+    float                       CellPaddingX;               // Padding from each borders
+    float                       CellPaddingY;
+    float                       CellSpacingX1;              // Spacing between non-bordered cells
+    float                       CellSpacingX2;
+    float                       InnerWidth;                 // User value passed to BeginTable(), see comments at the top of BeginTable() for details.
+    float                       ColumnsGivenWidth;          // Sum of current column width
+    float                       ColumnsAutoFitWidth;        // Sum of ideal column width in order nothing to be clipped, used for auto-fitting and content width submission in outer window
+    float                       ColumnsStretchSumWeights;   // Sum of weight of all enabled stretching columns
+    float                       ResizedColumnNextWidth;
+    float                       ResizeLockMinContentsX2;    // Lock minimum contents width while resizing down in order to not create feedback loops. But we allow growing the table.
+    float                       RefScale;                   // Reference scale to be able to rescale columns on font/dpi changes.
+    ImRect                      OuterRect;                  // Note: for non-scrolling table, OuterRect.Max.y is often FLT_MAX until EndTable(), unless a height has been specified in BeginTable().
+    ImRect                      InnerRect;                  // InnerRect but without decoration. As with OuterRect, for non-scrolling tables, InnerRect.Max.y is
+    ImRect                      WorkRect;
+    ImRect                      InnerClipRect;
+    ImRect                      BgClipRect;                 // We use this to cpu-clip cell background color fill, evolve during the frame as we cross frozen rows boundaries
+    ImRect                      Bg0ClipRectForDrawCmd;      // Actual ImDrawCmd clip rect for BG0/1 channel. This tends to be == OuterWindow->ClipRect at BeginTable() because output in BG0/BG1 is cpu-clipped
+    ImRect                      Bg2ClipRectForDrawCmd;      // Actual ImDrawCmd clip rect for BG2 channel. This tends to be a correct, tight-fit, because output to BG2 are done by widgets relying on regular ClipRect.
+    ImRect                      HostClipRect;               // This is used to check if we can eventually merge our columns draw calls into the current draw call of the current window.
+    ImRect                      HostBackupInnerClipRect;    // Backup of InnerWindow->ClipRect during PushTableBackground()/PopTableBackground()
+    ImGuiWindow*                OuterWindow;                // Parent window for the table
+    ImGuiWindow*                InnerWindow;                // Window holding the table data (== OuterWindow or a child window)
+    ImGuiTextBuffer             ColumnsNames;               // Contiguous buffer holding columns names
+    ImDrawListSplitter*         DrawSplitter;               // Shortcut to TempData->DrawSplitter while in table. Isolate draw commands per columns to avoid switching clip rect constantly
+    ImGuiTableInstanceData      InstanceDataFirst;
+    ImVector<ImGuiTableInstanceData>    InstanceDataExtra;  // FIXME-OPT: Using a small-vector pattern would be good.
+    ImGuiTableColumnSortSpecs   SortSpecsSingle;
+    ImVector<ImGuiTableColumnSortSpecs> SortSpecsMulti;     // FIXME-OPT: Using a small-vector pattern would be good.
+    ImGuiTableSortSpecs         SortSpecs;                  // Public facing sorts specs, this is what we return in TableGetSortSpecs()
+    ImGuiTableColumnIdx         SortSpecsCount;
+    ImGuiTableColumnIdx         ColumnsEnabledCount;        // Number of enabled columns (<= ColumnsCount)
+    ImGuiTableColumnIdx         ColumnsEnabledFixedCount;   // Number of enabled columns (<= ColumnsCount)
+    ImGuiTableColumnIdx         DeclColumnsCount;           // Count calls to TableSetupColumn()
+    ImGuiTableColumnIdx         HoveredColumnBody;          // Index of column whose visible region is being hovered. Important: == ColumnsCount when hovering empty region after the right-most column!
+    ImGuiTableColumnIdx         HoveredColumnBorder;        // Index of column whose right-border is being hovered (for resizing).
+    ImGuiTableColumnIdx         AutoFitSingleColumn;        // Index of single column requesting auto-fit.
+    ImGuiTableColumnIdx         ResizedColumn;              // Index of column being resized. Reset when InstanceCurrent==0.
+    ImGuiTableColumnIdx         LastResizedColumn;          // Index of column being resized from previous frame.
+    ImGuiTableColumnIdx         HeldHeaderColumn;           // Index of column header being held.
+    ImGuiTableColumnIdx         ReorderColumn;              // Index of column being reordered. (not cleared)
+    ImGuiTableColumnIdx         ReorderColumnDir;           // -1 or +1
+    ImGuiTableColumnIdx         LeftMostEnabledColumn;      // Index of left-most non-hidden column.
+    ImGuiTableColumnIdx         RightMostEnabledColumn;     // Index of right-most non-hidden column.
+    ImGuiTableColumnIdx         LeftMostStretchedColumn;    // Index of left-most stretched column.
+    ImGuiTableColumnIdx         RightMostStretchedColumn;   // Index of right-most stretched column.
+    ImGuiTableColumnIdx         ContextPopupColumn;         // Column right-clicked on, of -1 if opening context menu from a neutral/empty spot
+    ImGuiTableColumnIdx         FreezeRowsRequest;          // Requested frozen rows count
+    ImGuiTableColumnIdx         FreezeRowsCount;            // Actual frozen row count (== FreezeRowsRequest, or == 0 when no scrolling offset)
+    ImGuiTableColumnIdx         FreezeColumnsRequest;       // Requested frozen columns count
+    ImGuiTableColumnIdx         FreezeColumnsCount;         // Actual frozen columns count (== FreezeColumnsRequest, or == 0 when no scrolling offset)
+    ImGuiTableColumnIdx         RowCellDataCurrent;         // Index of current RowCellData[] entry in current row
+    ImGuiTableDrawChannelIdx    DummyDrawChannel;           // Redirect non-visible columns here.
+    ImGuiTableDrawChannelIdx    Bg2DrawChannelCurrent;      // For Selectable() and other widgets drawing across columns after the freezing line. Index within DrawSplitter.Channels[]
+    ImGuiTableDrawChannelIdx    Bg2DrawChannelUnfrozen;
+    bool                        IsLayoutLocked;             // Set by TableUpdateLayout() which is called when beginning the first row.
+    bool                        IsInsideRow;                // Set when inside TableBeginRow()/TableEndRow().
+    bool                        IsInitializing;
+    bool                        IsSortSpecsDirty;
+    bool                        IsUsingHeaders;             // Set when the first row had the ImGuiTableRowFlags_Headers flag.
+    bool                        IsContextPopupOpen;         // Set when default context menu is open (also see: ContextPopupColumn, InstanceInteracted).
+    bool                        IsSettingsRequestLoad;
+    bool                        IsSettingsDirty;            // Set when table settings have changed and needs to be reported into ImGuiTableSetttings data.
+    bool                        IsDefaultDisplayOrder;      // Set when display order is unchanged from default (DisplayOrder contains 0...Count-1)
+    bool                        IsResetAllRequest;
+    bool                        IsResetDisplayOrderRequest;
+    bool                        IsUnfrozenRows;             // Set when we got past the frozen row.
+    bool                        IsDefaultSizingPolicy;      // Set if user didn't explicitly set a sizing policy in BeginTable()
+    bool                        MemoryCompacted;
+    bool                        HostSkipItems;              // Backup of InnerWindow->SkipItem at the end of BeginTable(), because we will overwrite InnerWindow->SkipItem on a per-column basis
+
+    ImGuiTable()                { memset(this, 0, sizeof(*this)); LastFrameActive = -1; }
+    ~ImGuiTable()               { IM_FREE(RawData); }
+};
+
+// Transient data that are only needed between BeginTable() and EndTable(), those buffers are shared (1 per level of stacked table).
+// - Accessing those requires chasing an extra pointer so for very frequently used data we leave them in the main table structure.
+// - We also leave out of this structure data that tend to be particularly useful for debugging/metrics.
+struct IMGUI_API ImGuiTableTempData
+{
+    int                         TableIndex;                 // Index in g.Tables.Buf[] pool
+    float                       LastTimeActive;             // Last timestamp this structure was used
+
+    ImVec2                      UserOuterSize;              // outer_size.x passed to BeginTable()
+    ImDrawListSplitter          DrawSplitter;
+
+    ImRect                      HostBackupWorkRect;         // Backup of InnerWindow->WorkRect at the end of BeginTable()
+    ImRect                      HostBackupParentWorkRect;   // Backup of InnerWindow->ParentWorkRect at the end of BeginTable()
+    ImVec2                      HostBackupPrevLineSize;     // Backup of InnerWindow->DC.PrevLineSize at the end of BeginTable()
+    ImVec2                      HostBackupCurrLineSize;     // Backup of InnerWindow->DC.CurrLineSize at the end of BeginTable()
+    ImVec2                      HostBackupCursorMaxPos;     // Backup of InnerWindow->DC.CursorMaxPos at the end of BeginTable()
+    ImVec1                      HostBackupColumnsOffset;    // Backup of OuterWindow->DC.ColumnsOffset at the end of BeginTable()
+    float                       HostBackupItemWidth;        // Backup of OuterWindow->DC.ItemWidth at the end of BeginTable()
+    int                         HostBackupItemWidthStackSize;//Backup of OuterWindow->DC.ItemWidthStack.Size at the end of BeginTable()
+
+    ImGuiTableTempData()        { memset(this, 0, sizeof(*this)); LastTimeActive = -1.0f; }
+};
+
+// sizeof() ~ 12
+struct ImGuiTableColumnSettings
+{
+    float                   WidthOrWeight;
+    ImGuiID                 UserID;
+    ImGuiTableColumnIdx     Index;
+    ImGuiTableColumnIdx     DisplayOrder;
+    ImGuiTableColumnIdx     SortOrder;
+    ImU8                    SortDirection : 2;
+    ImU8                    IsEnabled : 1; // "Visible" in ini file
+    ImU8                    IsStretch : 1;
+
+    ImGuiTableColumnSettings()
+    {
+        WidthOrWeight = 0.0f;
+        UserID = 0;
+        Index = -1;
+        DisplayOrder = SortOrder = -1;
+        SortDirection = ImGuiSortDirection_None;
+        IsEnabled = 1;
+        IsStretch = 0;
+    }
+};
+
+// This is designed to be stored in a single ImChunkStream (1 header followed by N ImGuiTableColumnSettings, etc.)
+struct ImGuiTableSettings
+{
+    ImGuiID                     ID;                     // Set to 0 to invalidate/delete the setting
+    ImGuiTableFlags             SaveFlags;              // Indicate data we want to save using the Resizable/Reorderable/Sortable/Hideable flags (could be using its own flags..)
+    float                       RefScale;               // Reference scale to be able to rescale columns on font/dpi changes.
+    ImGuiTableColumnIdx         ColumnsCount;
+    ImGuiTableColumnIdx         ColumnsCountMax;        // Maximum number of columns this settings instance can store, we can recycle a settings instance with lower number of columns but not higher
+    bool                        WantApply;              // Set when loaded from .ini data (to enable merging/loading .ini data into an already running context)
+
+    ImGuiTableSettings()        { memset(this, 0, sizeof(*this)); }
+    ImGuiTableColumnSettings*   GetColumnSettings()     { return (ImGuiTableColumnSettings*)(this + 1); }
+};
+
+//-----------------------------------------------------------------------------
+// [SECTION] ImGui internal API
+// No guarantee of forward compatibility here!
+//-----------------------------------------------------------------------------
+
+namespace ImGui
+{
+    // Windows
+    // We should always have a CurrentWindow in the stack (there is an implicit "Debug" window)
+    // If this ever crash because g.CurrentWindow is NULL it means that either
+    // - ImGui::NewFrame() has never been called, which is illegal.
+    // - You are calling ImGui functions after ImGui::EndFrame()/ImGui::Render() and before the next ImGui::NewFrame(), which is also illegal.
+    inline    ImGuiWindow*  GetCurrentWindowRead()      { ImGuiContext& g = *GImGui; return g.CurrentWindow; }
+    inline    ImGuiWindow*  GetCurrentWindow()          { ImGuiContext& g = *GImGui; g.CurrentWindow->WriteAccessed = true; return g.CurrentWindow; }
+    IMGUI_API ImGuiWindow*  FindWindowByID(ImGuiID id);
+    IMGUI_API ImGuiWindow*  FindWindowByName(const char* name);
+    IMGUI_API void          UpdateWindowParentAndRootLinks(ImGuiWindow* window, ImGuiWindowFlags flags, ImGuiWindow* parent_window);
+    IMGUI_API ImVec2        CalcWindowNextAutoFitSize(ImGuiWindow* window);
+    IMGUI_API bool          IsWindowChildOf(ImGuiWindow* window, ImGuiWindow* potential_parent, bool popup_hierarchy);
+    IMGUI_API bool          IsWindowWithinBeginStackOf(ImGuiWindow* window, ImGuiWindow* potential_parent);
+    IMGUI_API bool          IsWindowAbove(ImGuiWindow* potential_above, ImGuiWindow* potential_below);
+    IMGUI_API bool          IsWindowNavFocusable(ImGuiWindow* window);
+    IMGUI_API void          SetWindowPos(ImGuiWindow* window, const ImVec2& pos, ImGuiCond cond = 0);
+    IMGUI_API void          SetWindowSize(ImGuiWindow* window, const ImVec2& size, ImGuiCond cond = 0);
+    IMGUI_API void          SetWindowCollapsed(ImGuiWindow* window, bool collapsed, ImGuiCond cond = 0);
+    IMGUI_API void          SetWindowHitTestHole(ImGuiWindow* window, const ImVec2& pos, const ImVec2& size);
+    inline ImRect           WindowRectAbsToRel(ImGuiWindow* window, const ImRect& r) { ImVec2 off = window->DC.CursorStartPos; return ImRect(r.Min.x - off.x, r.Min.y - off.y, r.Max.x - off.x, r.Max.y - off.y); }
+    inline ImRect           WindowRectRelToAbs(ImGuiWindow* window, const ImRect& r) { ImVec2 off = window->DC.CursorStartPos; return ImRect(r.Min.x + off.x, r.Min.y + off.y, r.Max.x + off.x, r.Max.y + off.y); }
+
+    // Windows: Display Order and Focus Order
+    IMGUI_API void          FocusWindow(ImGuiWindow* window);
+    IMGUI_API void          FocusTopMostWindowUnderOne(ImGuiWindow* under_this_window, ImGuiWindow* ignore_window);
+    IMGUI_API void          BringWindowToFocusFront(ImGuiWindow* window);
+    IMGUI_API void          BringWindowToDisplayFront(ImGuiWindow* window);
+    IMGUI_API void          BringWindowToDisplayBack(ImGuiWindow* window);
+    IMGUI_API void          BringWindowToDisplayBehind(ImGuiWindow* window, ImGuiWindow* above_window);
+    IMGUI_API int           FindWindowDisplayIndex(ImGuiWindow* window);
+    IMGUI_API ImGuiWindow*  FindBottomMostVisibleWindowWithinBeginStack(ImGuiWindow* window);
+
+    // Fonts, drawing
+    IMGUI_API void          SetCurrentFont(ImFont* font);
+    inline ImFont*          GetDefaultFont() { ImGuiContext& g = *GImGui; return g.IO.FontDefault ? g.IO.FontDefault : g.IO.Fonts->Fonts[0]; }
+    inline ImDrawList*      GetForegroundDrawList(ImGuiWindow* window) { IM_UNUSED(window); return GetForegroundDrawList(); } // This seemingly unnecessary wrapper simplifies compatibility between the 'master' and 'docking' branches.
+    IMGUI_API ImDrawList*   GetBackgroundDrawList(ImGuiViewport* viewport);                     // get background draw list for the given viewport. this draw list will be the first rendering one. Useful to quickly draw shapes/text behind dear imgui contents.
+    IMGUI_API ImDrawList*   GetForegroundDrawList(ImGuiViewport* viewport);                     // get foreground draw list for the given viewport. this draw list will be the last rendered one. Useful to quickly draw shapes/text over dear imgui contents.
+
+    // Init
+    IMGUI_API void          Initialize();
+    IMGUI_API void          Shutdown();    // Since 1.60 this is a _private_ function. You can call DestroyContext() to destroy the context created by CreateContext().
+
+    // NewFrame
+    IMGUI_API void          UpdateInputEvents(bool trickle_fast_inputs);
+    IMGUI_API void          UpdateHoveredWindowAndCaptureFlags();
+    IMGUI_API void          StartMouseMovingWindow(ImGuiWindow* window);
+    IMGUI_API void          UpdateMouseMovingWindowNewFrame();
+    IMGUI_API void          UpdateMouseMovingWindowEndFrame();
+
+    // Generic context hooks
+    IMGUI_API ImGuiID       AddContextHook(ImGuiContext* context, const ImGuiContextHook* hook);
+    IMGUI_API void          RemoveContextHook(ImGuiContext* context, ImGuiID hook_to_remove);
+    IMGUI_API void          CallContextHooks(ImGuiContext* context, ImGuiContextHookType type);
+
+    // Viewports
+    IMGUI_API void          SetWindowViewport(ImGuiWindow* window, ImGuiViewportP* viewport);
+
+    // Settings
+    IMGUI_API void                  MarkIniSettingsDirty();
+    IMGUI_API void                  MarkIniSettingsDirty(ImGuiWindow* window);
+    IMGUI_API void                  ClearIniSettings();
+    IMGUI_API ImGuiWindowSettings*  CreateNewWindowSettings(const char* name);
+    IMGUI_API ImGuiWindowSettings*  FindWindowSettings(ImGuiID id);
+    IMGUI_API ImGuiWindowSettings*  FindOrCreateWindowSettings(const char* name);
+    IMGUI_API void                  AddSettingsHandler(const ImGuiSettingsHandler* handler);
+    IMGUI_API void                  RemoveSettingsHandler(const char* type_name);
+    IMGUI_API ImGuiSettingsHandler* FindSettingsHandler(const char* type_name);
+
+    // Scrolling
+    IMGUI_API void          SetNextWindowScroll(const ImVec2& scroll); // Use -1.0f on one axis to leave as-is
+    IMGUI_API void          SetScrollX(ImGuiWindow* window, float scroll_x);
+    IMGUI_API void          SetScrollY(ImGuiWindow* window, float scroll_y);
+    IMGUI_API void          SetScrollFromPosX(ImGuiWindow* window, float local_x, float center_x_ratio);
+    IMGUI_API void          SetScrollFromPosY(ImGuiWindow* window, float local_y, float center_y_ratio);
+
+    // Early work-in-progress API (ScrollToItem() will become public)
+    IMGUI_API void          ScrollToItem(ImGuiScrollFlags flags = 0);
+    IMGUI_API void          ScrollToRect(ImGuiWindow* window, const ImRect& rect, ImGuiScrollFlags flags = 0);
+    IMGUI_API ImVec2        ScrollToRectEx(ImGuiWindow* window, const ImRect& rect, ImGuiScrollFlags flags = 0);
+//#ifndef IMGUI_DISABLE_OBSOLETE_FUNCTIONS
+    inline void             ScrollToBringRectIntoView(ImGuiWindow* window, const ImRect& rect) { ScrollToRect(window, rect, ImGuiScrollFlags_KeepVisibleEdgeY); }
+//#endif
+
+    // Basic Accessors
+    inline ImGuiID          GetItemID()     { ImGuiContext& g = *GImGui; return g.LastItemData.ID; }   // Get ID of last item (~~ often same ImGui::GetID(label) beforehand)
+    inline ImGuiItemStatusFlags GetItemStatusFlags(){ ImGuiContext& g = *GImGui; return g.LastItemData.StatusFlags; }
+    inline ImGuiItemFlags   GetItemFlags()  { ImGuiContext& g = *GImGui; return g.LastItemData.InFlags; }
+    inline ImGuiID          GetActiveID()   { ImGuiContext& g = *GImGui; return g.ActiveId; }
+    inline ImGuiID          GetFocusID()    { ImGuiContext& g = *GImGui; return g.NavId; }
+    IMGUI_API void          SetActiveID(ImGuiID id, ImGuiWindow* window);
+    IMGUI_API void          SetFocusID(ImGuiID id, ImGuiWindow* window);
+    IMGUI_API void          ClearActiveID();
+    IMGUI_API ImGuiID       GetHoveredID();
+    IMGUI_API void          SetHoveredID(ImGuiID id);
+    IMGUI_API void          KeepAliveID(ImGuiID id);
+    IMGUI_API void          MarkItemEdited(ImGuiID id);     // Mark data associated to given item as "edited", used by IsItemDeactivatedAfterEdit() function.
+    IMGUI_API void          PushOverrideID(ImGuiID id);     // Push given value as-is at the top of the ID stack (whereas PushID combines old and new hashes)
+    IMGUI_API ImGuiID       GetIDWithSeed(const char* str_id_begin, const char* str_id_end, ImGuiID seed);
+
+    // Basic Helpers for widget code
+    IMGUI_API void          ItemSize(const ImVec2& size, float text_baseline_y = -1.0f);
+    inline void             ItemSize(const ImRect& bb, float text_baseline_y = -1.0f) { ItemSize(bb.GetSize(), text_baseline_y); } // FIXME: This is a misleading API since we expect CursorPos to be bb.Min.
+    IMGUI_API bool          ItemAdd(const ImRect& bb, ImGuiID id, const ImRect* nav_bb = NULL, ImGuiItemFlags extra_flags = 0);
+    IMGUI_API bool          ItemHoverable(const ImRect& bb, ImGuiID id);
+    IMGUI_API bool          IsClippedEx(const ImRect& bb, ImGuiID id);
+    IMGUI_API void          SetLastItemData(ImGuiID item_id, ImGuiItemFlags in_flags, ImGuiItemStatusFlags status_flags, const ImRect& item_rect);
+    IMGUI_API ImVec2        CalcItemSize(ImVec2 size, float default_w, float default_h);
+    IMGUI_API float         CalcWrapWidthForPos(const ImVec2& pos, float wrap_pos_x);
+    IMGUI_API void          PushMultiItemsWidths(int components, float width_full);
+    IMGUI_API bool          IsItemToggledSelection();                                   // Was the last item selection toggled? (after Selectable(), TreeNode() etc. We only returns toggle _event_ in order to handle clipping correctly)
+    IMGUI_API ImVec2        GetContentRegionMaxAbs();
+    IMGUI_API void          ShrinkWidths(ImGuiShrinkWidthItem* items, int count, float width_excess);
+
+    // Parameter stacks
+    IMGUI_API void          PushItemFlag(ImGuiItemFlags option, bool enabled);
+    IMGUI_API void          PopItemFlag();
+
+#ifndef IMGUI_DISABLE_OBSOLETE_FUNCTIONS
+    // Currently refactoring focus/nav/tabbing system
+    // If you have old/custom copy-and-pasted widgets that used FocusableItemRegister():
+    //  (Old) IMGUI_VERSION_NUM  < 18209: using 'ItemAdd(....)'                              and 'bool tab_focused = FocusableItemRegister(...)'
+    //  (Old) IMGUI_VERSION_NUM >= 18209: using 'ItemAdd(..., ImGuiItemAddFlags_Focusable)'  and 'bool tab_focused = (GetItemStatusFlags() & ImGuiItemStatusFlags_Focused) != 0'
+    //  (New) IMGUI_VERSION_NUM >= 18413: using 'ItemAdd(..., ImGuiItemFlags_Inputable)'     and 'bool tab_focused = (GetItemStatusFlags() & ImGuiItemStatusFlags_FocusedTabbing) != 0 || g.NavActivateInputId == id' (WIP)
+    // Widget code are simplified as there's no need to call FocusableItemUnregister() while managing the transition from regular widget to TempInputText()
+    inline bool FocusableItemRegister(ImGuiWindow* window, ImGuiID id)  { IM_ASSERT(0); IM_UNUSED(window); IM_UNUSED(id); return false; } // -> pass ImGuiItemAddFlags_Inputable flag to ItemAdd()
+    inline void FocusableItemUnregister(ImGuiWindow* window)            { IM_ASSERT(0); IM_UNUSED(window); }                              // -> unnecessary: TempInputText() uses ImGuiInputTextFlags_MergedItem
+#endif
+
+    // Logging/Capture
+    IMGUI_API void          LogBegin(ImGuiLogType type, int auto_open_depth);           // -> BeginCapture() when we design v2 api, for now stay under the radar by using the old name.
+    IMGUI_API void          LogToBuffer(int auto_open_depth = -1);                      // Start logging/capturing to internal buffer
+    IMGUI_API void          LogRenderedText(const ImVec2* ref_pos, const char* text, const char* text_end = NULL);
+    IMGUI_API void          LogSetNextTextDecoration(const char* prefix, const char* suffix);
+
+    // Popups, Modals, Tooltips
+    IMGUI_API bool          BeginChildEx(const char* name, ImGuiID id, const ImVec2& size_arg, bool border, ImGuiWindowFlags flags);
+    IMGUI_API void          OpenPopupEx(ImGuiID id, ImGuiPopupFlags popup_flags = ImGuiPopupFlags_None);
+    IMGUI_API void          ClosePopupToLevel(int remaining, bool restore_focus_to_window_under_popup);
+    IMGUI_API void          ClosePopupsOverWindow(ImGuiWindow* ref_window, bool restore_focus_to_window_under_popup);
+    IMGUI_API void          ClosePopupsExceptModals();
+    IMGUI_API bool          IsPopupOpen(ImGuiID id, ImGuiPopupFlags popup_flags);
+    IMGUI_API bool          BeginPopupEx(ImGuiID id, ImGuiWindowFlags extra_flags);
+    IMGUI_API void          BeginTooltipEx(ImGuiTooltipFlags tooltip_flags, ImGuiWindowFlags extra_window_flags);
+    IMGUI_API ImRect        GetPopupAllowedExtentRect(ImGuiWindow* window);
+    IMGUI_API ImGuiWindow*  GetTopMostPopupModal();
+    IMGUI_API ImGuiWindow*  GetTopMostAndVisiblePopupModal();
+    IMGUI_API ImVec2        FindBestWindowPosForPopup(ImGuiWindow* window);
+    IMGUI_API ImVec2        FindBestWindowPosForPopupEx(const ImVec2& ref_pos, const ImVec2& size, ImGuiDir* last_dir, const ImRect& r_outer, const ImRect& r_avoid, ImGuiPopupPositionPolicy policy);
+
+    // Menus
+    IMGUI_API bool          BeginViewportSideBar(const char* name, ImGuiViewport* viewport, ImGuiDir dir, float size, ImGuiWindowFlags window_flags);
+    IMGUI_API bool          BeginMenuEx(const char* label, const char* icon, bool enabled = true);
+    IMGUI_API bool          MenuItemEx(const char* label, const char* icon, const char* shortcut = NULL, bool selected = false, bool enabled = true);
+
+    // Combos
+    IMGUI_API bool          BeginComboPopup(ImGuiID popup_id, const ImRect& bb, ImGuiComboFlags flags);
+    IMGUI_API bool          BeginComboPreview();
+    IMGUI_API void          EndComboPreview();
+
+    // Gamepad/Keyboard Navigation
+    IMGUI_API void          NavInitWindow(ImGuiWindow* window, bool force_reinit);
+    IMGUI_API void          NavInitRequestApplyResult();
+    IMGUI_API bool          NavMoveRequestButNoResultYet();
+    IMGUI_API void          NavMoveRequestSubmit(ImGuiDir move_dir, ImGuiDir clip_dir, ImGuiNavMoveFlags move_flags, ImGuiScrollFlags scroll_flags);
+    IMGUI_API void          NavMoveRequestForward(ImGuiDir move_dir, ImGuiDir clip_dir, ImGuiNavMoveFlags move_flags, ImGuiScrollFlags scroll_flags);
+    IMGUI_API void          NavMoveRequestResolveWithLastItem(ImGuiNavItemData* result);
+    IMGUI_API void          NavMoveRequestCancel();
+    IMGUI_API void          NavMoveRequestApplyResult();
+    IMGUI_API void          NavMoveRequestTryWrapping(ImGuiWindow* window, ImGuiNavMoveFlags move_flags);
+    IMGUI_API const char*   GetNavInputName(ImGuiNavInput n);
+    IMGUI_API float         GetNavInputAmount(ImGuiNavInput n, ImGuiNavReadMode mode);
+    IMGUI_API ImVec2        GetNavInputAmount2d(ImGuiNavDirSourceFlags dir_sources, ImGuiNavReadMode mode, float slow_factor = 0.0f, float fast_factor = 0.0f);
+    IMGUI_API int           CalcTypematicRepeatAmount(float t0, float t1, float repeat_delay, float repeat_rate);
+    IMGUI_API void          ActivateItem(ImGuiID id);   // Remotely activate a button, checkbox, tree node etc. given its unique ID. activation is queued and processed on the next frame when the item is encountered again.
+    IMGUI_API void          SetNavWindow(ImGuiWindow* window);
+    IMGUI_API void          SetNavID(ImGuiID id, ImGuiNavLayer nav_layer, ImGuiID focus_scope_id, const ImRect& rect_rel);
+
+    // Focus Scope (WIP)
+    // This is generally used to identify a selection set (multiple of which may be in the same window), as selection
+    // patterns generally need to react (e.g. clear selection) when landing on an item of the set.
+    IMGUI_API void          PushFocusScope(ImGuiID id);
+    IMGUI_API void          PopFocusScope();
+    inline ImGuiID          GetFocusedFocusScope()          { ImGuiContext& g = *GImGui; return g.NavFocusScopeId; }                            // Focus scope which is actually active
+    inline ImGuiID          GetFocusScope()                 { ImGuiContext& g = *GImGui; return g.CurrentWindow->DC.NavFocusScopeIdCurrent; }   // Focus scope we are outputting into, set by PushFocusScope()
+
+    // Inputs
+    // FIXME: Eventually we should aim to move e.g. IsActiveIdUsingKey() into IsKeyXXX functions.
+    inline bool             IsNamedKey(ImGuiKey key)                                    { return key >= ImGuiKey_NamedKey_BEGIN && key < ImGuiKey_NamedKey_END; }
+    inline bool             IsLegacyKey(ImGuiKey key)                                   { return key >= ImGuiKey_LegacyNativeKey_BEGIN && key < ImGuiKey_LegacyNativeKey_END; }
+    inline bool             IsGamepadKey(ImGuiKey key)                                  { return key >= ImGuiKey_Gamepad_BEGIN && key < ImGuiKey_Gamepad_END; }
+    IMGUI_API ImGuiKeyData* GetKeyData(ImGuiKey key);
+    IMGUI_API void          SetItemUsingMouseWheel();
+    IMGUI_API void          SetActiveIdUsingNavAndKeys();
+    inline bool             IsActiveIdUsingNavDir(ImGuiDir dir)                         { ImGuiContext& g = *GImGui; return (g.ActiveIdUsingNavDirMask & (1 << dir)) != 0; }
+    inline bool             IsActiveIdUsingNavInput(ImGuiNavInput input)                { ImGuiContext& g = *GImGui; return (g.ActiveIdUsingNavInputMask & (1 << input)) != 0; }
+    inline bool             IsActiveIdUsingKey(ImGuiKey key)                            { ImGuiContext& g = *GImGui; return g.ActiveIdUsingKeyInputMask[key]; }
+    inline void             SetActiveIdUsingKey(ImGuiKey key)                           { ImGuiContext& g = *GImGui; g.ActiveIdUsingKeyInputMask.SetBit(key); }
+    IMGUI_API bool          IsMouseDragPastThreshold(ImGuiMouseButton button, float lock_threshold = -1.0f);
+    inline bool             IsNavInputDown(ImGuiNavInput n)                             { ImGuiContext& g = *GImGui; return g.IO.NavInputs[n] > 0.0f; }
+    inline bool             IsNavInputTest(ImGuiNavInput n, ImGuiNavReadMode rm)        { return (GetNavInputAmount(n, rm) > 0.0f); }
+    IMGUI_API ImGuiModFlags GetMergedModFlags();
+#ifndef IMGUI_DISABLE_OBSOLETE_KEYIO
+    inline bool             IsKeyPressedMap(ImGuiKey key, bool repeat = true)           { IM_ASSERT(IsNamedKey(key)); return IsKeyPressed(key, repeat); } // [removed in 1.87]
+#endif
+
+    // Drag and Drop
+    IMGUI_API bool          IsDragDropActive();
+    IMGUI_API bool          BeginDragDropTargetCustom(const ImRect& bb, ImGuiID id);
+    IMGUI_API void          ClearDragDrop();
+    IMGUI_API bool          IsDragDropPayloadBeingAccepted();
+
+    // Internal Columns API (this is not exposed because we will encourage transitioning to the Tables API)
+    IMGUI_API void          SetWindowClipRectBeforeSetChannel(ImGuiWindow* window, const ImRect& clip_rect);
+    IMGUI_API void          BeginColumns(const char* str_id, int count, ImGuiOldColumnFlags flags = 0); // setup number of columns. use an identifier to distinguish multiple column sets. close with EndColumns().
+    IMGUI_API void          EndColumns();                                                               // close columns
+    IMGUI_API void          PushColumnClipRect(int column_index);
+    IMGUI_API void          PushColumnsBackground();
+    IMGUI_API void          PopColumnsBackground();
+    IMGUI_API ImGuiID       GetColumnsID(const char* str_id, int count);
+    IMGUI_API ImGuiOldColumns* FindOrCreateColumns(ImGuiWindow* window, ImGuiID id);
+    IMGUI_API float         GetColumnOffsetFromNorm(const ImGuiOldColumns* columns, float offset_norm);
+    IMGUI_API float         GetColumnNormFromOffset(const ImGuiOldColumns* columns, float offset);
+
+    // Tables: Candidates for public API
+    IMGUI_API void          TableOpenContextMenu(int column_n = -1);
+    IMGUI_API void          TableSetColumnWidth(int column_n, float width);
+    IMGUI_API void          TableSetColumnSortDirection(int column_n, ImGuiSortDirection sort_direction, bool append_to_sort_specs);
+    IMGUI_API int           TableGetHoveredColumn(); // May use (TableGetColumnFlags() & ImGuiTableColumnFlags_IsHovered) instead. Return hovered column. return -1 when table is not hovered. return columns_count if the unused space at the right of visible columns is hovered.
+    IMGUI_API float         TableGetHeaderRowHeight();
+    IMGUI_API void          TablePushBackgroundChannel();
+    IMGUI_API void          TablePopBackgroundChannel();
+
+    // Tables: Internals
+    inline    ImGuiTable*   GetCurrentTable() { ImGuiContext& g = *GImGui; return g.CurrentTable; }
+    IMGUI_API ImGuiTable*   TableFindByID(ImGuiID id);
+    IMGUI_API bool          BeginTableEx(const char* name, ImGuiID id, int columns_count, ImGuiTableFlags flags = 0, const ImVec2& outer_size = ImVec2(0, 0), float inner_width = 0.0f);
+    IMGUI_API void          TableBeginInitMemory(ImGuiTable* table, int columns_count);
+    IMGUI_API void          TableBeginApplyRequests(ImGuiTable* table);
+    IMGUI_API void          TableSetupDrawChannels(ImGuiTable* table);
+    IMGUI_API void          TableUpdateLayout(ImGuiTable* table);
+    IMGUI_API void          TableUpdateBorders(ImGuiTable* table);
+    IMGUI_API void          TableUpdateColumnsWeightFromWidth(ImGuiTable* table);
+    IMGUI_API void          TableDrawBorders(ImGuiTable* table);
+    IMGUI_API void          TableDrawContextMenu(ImGuiTable* table);
+    IMGUI_API void          TableMergeDrawChannels(ImGuiTable* table);
+    inline ImGuiTableInstanceData*   TableGetInstanceData(ImGuiTable* table, int instance_no) { if (instance_no == 0) return &table->InstanceDataFirst; return &table->InstanceDataExtra[instance_no - 1]; }
+    IMGUI_API void          TableSortSpecsSanitize(ImGuiTable* table);
+    IMGUI_API void          TableSortSpecsBuild(ImGuiTable* table);
+    IMGUI_API ImGuiSortDirection TableGetColumnNextSortDirection(ImGuiTableColumn* column);
+    IMGUI_API void          TableFixColumnSortDirection(ImGuiTable* table, ImGuiTableColumn* column);
+    IMGUI_API float         TableGetColumnWidthAuto(ImGuiTable* table, ImGuiTableColumn* column);
+    IMGUI_API void          TableBeginRow(ImGuiTable* table);
+    IMGUI_API void          TableEndRow(ImGuiTable* table);
+    IMGUI_API void          TableBeginCell(ImGuiTable* table, int column_n);
+    IMGUI_API void          TableEndCell(ImGuiTable* table);
+    IMGUI_API ImRect        TableGetCellBgRect(const ImGuiTable* table, int column_n);
+    IMGUI_API const char*   TableGetColumnName(const ImGuiTable* table, int column_n);
+    IMGUI_API ImGuiID       TableGetColumnResizeID(const ImGuiTable* table, int column_n, int instance_no = 0);
+    IMGUI_API float         TableGetMaxColumnWidth(const ImGuiTable* table, int column_n);
+    IMGUI_API void          TableSetColumnWidthAutoSingle(ImGuiTable* table, int column_n);
+    IMGUI_API void          TableSetColumnWidthAutoAll(ImGuiTable* table);
+    IMGUI_API void          TableRemove(ImGuiTable* table);
+    IMGUI_API void          TableGcCompactTransientBuffers(ImGuiTable* table);
+    IMGUI_API void          TableGcCompactTransientBuffers(ImGuiTableTempData* table);
+    IMGUI_API void          TableGcCompactSettings();
+
+    // Tables: Settings
+    IMGUI_API void                  TableLoadSettings(ImGuiTable* table);
+    IMGUI_API void                  TableSaveSettings(ImGuiTable* table);
+    IMGUI_API void                  TableResetSettings(ImGuiTable* table);
+    IMGUI_API ImGuiTableSettings*   TableGetBoundSettings(ImGuiTable* table);
+    IMGUI_API void                  TableSettingsAddSettingsHandler();
+    IMGUI_API ImGuiTableSettings*   TableSettingsCreate(ImGuiID id, int columns_count);
+    IMGUI_API ImGuiTableSettings*   TableSettingsFindByID(ImGuiID id);
+
+    // Tab Bars
+    IMGUI_API bool          BeginTabBarEx(ImGuiTabBar* tab_bar, const ImRect& bb, ImGuiTabBarFlags flags);
+    IMGUI_API ImGuiTabItem* TabBarFindTabByID(ImGuiTabBar* tab_bar, ImGuiID tab_id);
+    IMGUI_API void          TabBarRemoveTab(ImGuiTabBar* tab_bar, ImGuiID tab_id);
+    IMGUI_API void          TabBarCloseTab(ImGuiTabBar* tab_bar, ImGuiTabItem* tab);
+    IMGUI_API void          TabBarQueueReorder(ImGuiTabBar* tab_bar, const ImGuiTabItem* tab, int offset);
+    IMGUI_API void          TabBarQueueReorderFromMousePos(ImGuiTabBar* tab_bar, const ImGuiTabItem* tab, ImVec2 mouse_pos);
+    IMGUI_API bool          TabBarProcessReorder(ImGuiTabBar* tab_bar);
+    IMGUI_API bool          TabItemEx(ImGuiTabBar* tab_bar, const char* label, bool* p_open, ImGuiTabItemFlags flags);
+    IMGUI_API ImVec2        TabItemCalcSize(const char* label, bool has_close_button);
+    IMGUI_API void          TabItemBackground(ImDrawList* draw_list, const ImRect& bb, ImGuiTabItemFlags flags, ImU32 col);
+    IMGUI_API void          TabItemLabelAndCloseButton(ImDrawList* draw_list, const ImRect& bb, ImGuiTabItemFlags flags, ImVec2 frame_padding, const char* label, ImGuiID tab_id, ImGuiID close_button_id, bool is_contents_visible, bool* out_just_closed, bool* out_text_clipped);
+
+    // Render helpers
+    // AVOID USING OUTSIDE OF IMGUI.CPP! NOT FOR PUBLIC CONSUMPTION. THOSE FUNCTIONS ARE A MESS. THEIR SIGNATURE AND BEHAVIOR WILL CHANGE, THEY NEED TO BE REFACTORED INTO SOMETHING DECENT.
+    // NB: All position are in absolute pixels coordinates (we are never using window coordinates internally)
+    IMGUI_API void          RenderText(ImVec2 pos, const char* text, const char* text_end = NULL, bool hide_text_after_hash = true);
+    IMGUI_API void          RenderTextWrapped(ImVec2 pos, const char* text, const char* text_end, float wrap_width);
+    IMGUI_API void          RenderTextClipped(const ImVec2& pos_min, const ImVec2& pos_max, const char* text, const char* text_end, const ImVec2* text_size_if_known, const ImVec2& align = ImVec2(0, 0), const ImRect* clip_rect = NULL);
+    IMGUI_API void          RenderTextClippedEx(ImDrawList* draw_list, const ImVec2& pos_min, const ImVec2& pos_max, const char* text, const char* text_end, const ImVec2* text_size_if_known, const ImVec2& align = ImVec2(0, 0), const ImRect* clip_rect = NULL);
+    IMGUI_API void          RenderTextEllipsis(ImDrawList* draw_list, const ImVec2& pos_min, const ImVec2& pos_max, float clip_max_x, float ellipsis_max_x, const char* text, const char* text_end, const ImVec2* text_size_if_known);
+    IMGUI_API void          RenderFrame(ImVec2 p_min, ImVec2 p_max, ImU32 fill_col, bool border = true, float rounding = 0.0f);
+    IMGUI_API void          RenderFrameBorder(ImVec2 p_min, ImVec2 p_max, float rounding = 0.0f);
+    IMGUI_API void          RenderColorRectWithAlphaCheckerboard(ImDrawList* draw_list, ImVec2 p_min, ImVec2 p_max, ImU32 fill_col, float grid_step, ImVec2 grid_off, float rounding = 0.0f, ImDrawFlags flags = 0);
+    IMGUI_API void          RenderNavHighlight(const ImRect& bb, ImGuiID id, ImGuiNavHighlightFlags flags = ImGuiNavHighlightFlags_TypeDefault); // Navigation highlight
+    IMGUI_API const char*   FindRenderedTextEnd(const char* text, const char* text_end = NULL); // Find the optional ## from which we stop displaying text.
+    IMGUI_API void          RenderMouseCursor(ImVec2 pos, float scale, ImGuiMouseCursor mouse_cursor, ImU32 col_fill, ImU32 col_border, ImU32 col_shadow);
+
+    // Render helpers (those functions don't access any ImGui state!)
+    IMGUI_API void          RenderArrow(ImDrawList* draw_list, ImVec2 pos, ImU32 col, ImGuiDir dir, float scale = 1.0f);
+    IMGUI_API void          RenderBullet(ImDrawList* draw_list, ImVec2 pos, ImU32 col);
+    IMGUI_API void          RenderCheckMark(ImDrawList* draw_list, ImVec2 pos, ImU32 col, float sz);
+    IMGUI_API void          RenderArrowPointingAt(ImDrawList* draw_list, ImVec2 pos, ImVec2 half_sz, ImGuiDir direction, ImU32 col);
+    IMGUI_API void          RenderRectFilledRangeH(ImDrawList* draw_list, const ImRect& rect, ImU32 col, float x_start_norm, float x_end_norm, float rounding);
+    IMGUI_API void          RenderRectFilledWithHole(ImDrawList* draw_list, const ImRect& outer, const ImRect& inner, ImU32 col, float rounding);
+
+    // Widgets
+    IMGUI_API void          TextEx(const char* text, const char* text_end = NULL, ImGuiTextFlags flags = 0);
+    IMGUI_API bool          ButtonEx(const char* label, const ImVec2& size_arg = ImVec2(0, 0), ImGuiButtonFlags flags = 0);
+    IMGUI_API bool          CloseButton(ImGuiID id, const ImVec2& pos);
+    IMGUI_API bool          CollapseButton(ImGuiID id, const ImVec2& pos);
+    IMGUI_API bool          ArrowButtonEx(const char* str_id, ImGuiDir dir, ImVec2 size_arg, ImGuiButtonFlags flags = 0);
+    IMGUI_API void          Scrollbar(ImGuiAxis axis);
+    IMGUI_API bool          ScrollbarEx(const ImRect& bb, ImGuiID id, ImGuiAxis axis, ImS64* p_scroll_v, ImS64 avail_v, ImS64 contents_v, ImDrawFlags flags);
+    IMGUI_API bool          ImageButtonEx(ImGuiID id, ImTextureID texture_id, const ImVec2& size, const ImVec2& uv0, const ImVec2& uv1, const ImVec2& padding, const ImVec4& bg_col, const ImVec4& tint_col);
+    IMGUI_API ImRect        GetWindowScrollbarRect(ImGuiWindow* window, ImGuiAxis axis);
+    IMGUI_API ImGuiID       GetWindowScrollbarID(ImGuiWindow* window, ImGuiAxis axis);
+    IMGUI_API ImGuiID       GetWindowResizeCornerID(ImGuiWindow* window, int n); // 0..3: corners
+    IMGUI_API ImGuiID       GetWindowResizeBorderID(ImGuiWindow* window, ImGuiDir dir);
+    IMGUI_API void          SeparatorEx(ImGuiSeparatorFlags flags);
+    IMGUI_API bool          CheckboxFlags(const char* label, ImS64* flags, ImS64 flags_value);
+    IMGUI_API bool          CheckboxFlags(const char* label, ImU64* flags, ImU64 flags_value);
+
+    // Widgets low-level behaviors
+    IMGUI_API bool          ButtonBehavior(const ImRect& bb, ImGuiID id, bool* out_hovered, bool* out_held, ImGuiButtonFlags flags = 0);
+    IMGUI_API bool          DragBehavior(ImGuiID id, ImGuiDataType data_type, void* p_v, float v_speed, const void* p_min, const void* p_max, const char* format, ImGuiSliderFlags flags);
+    IMGUI_API bool          SliderBehavior(const ImRect& bb, ImGuiID id, ImGuiDataType data_type, void* p_v, const void* p_min, const void* p_max, const char* format, ImGuiSliderFlags flags, ImRect* out_grab_bb);
+    IMGUI_API bool          SplitterBehavior(const ImRect& bb, ImGuiID id, ImGuiAxis axis, float* size1, float* size2, float min_size1, float min_size2, float hover_extend = 0.0f, float hover_visibility_delay = 0.0f);
+    IMGUI_API bool          TreeNodeBehavior(ImGuiID id, ImGuiTreeNodeFlags flags, const char* label, const char* label_end = NULL);
+    IMGUI_API bool          TreeNodeBehaviorIsOpen(ImGuiID id, ImGuiTreeNodeFlags flags = 0);                     // Consume previous SetNextItemOpen() data, if any. May return true when logging
+    IMGUI_API void          TreePushOverrideID(ImGuiID id);
+
+    // Template functions are instantiated in imgui_widgets.cpp for a finite number of types.
+    // To use them externally (for custom widget) you may need an "extern template" statement in your code in order to link to existing instances and silence Clang warnings (see #2036).
+    // e.g. " extern template IMGUI_API float RoundScalarWithFormatT<float, float>(const char* format, ImGuiDataType data_type, float v); "
+    template<typename T, typename SIGNED_T, typename FLOAT_T>   IMGUI_API float ScaleRatioFromValueT(ImGuiDataType data_type, T v, T v_min, T v_max, bool is_logarithmic, float logarithmic_zero_epsilon, float zero_deadzone_size);
+    template<typename T, typename SIGNED_T, typename FLOAT_T>   IMGUI_API T     ScaleValueFromRatioT(ImGuiDataType data_type, float t, T v_min, T v_max, bool is_logarithmic, float logarithmic_zero_epsilon, float zero_deadzone_size);
+    template<typename T, typename SIGNED_T, typename FLOAT_T>   IMGUI_API bool  DragBehaviorT(ImGuiDataType data_type, T* v, float v_speed, T v_min, T v_max, const char* format, ImGuiSliderFlags flags);
+    template<typename T, typename SIGNED_T, typename FLOAT_T>   IMGUI_API bool  SliderBehaviorT(const ImRect& bb, ImGuiID id, ImGuiDataType data_type, T* v, T v_min, T v_max, const char* format, ImGuiSliderFlags flags, ImRect* out_grab_bb);
+    template<typename T>                                        IMGUI_API T     RoundScalarWithFormatT(const char* format, ImGuiDataType data_type, T v);
+    template<typename T>                                        IMGUI_API bool  CheckboxFlagsT(const char* label, T* flags, T flags_value);
+
+    // Data type helpers
+    IMGUI_API const ImGuiDataTypeInfo*  DataTypeGetInfo(ImGuiDataType data_type);
+    IMGUI_API int           DataTypeFormatString(char* buf, int buf_size, ImGuiDataType data_type, const void* p_data, const char* format);
+    IMGUI_API void          DataTypeApplyOp(ImGuiDataType data_type, int op, void* output, const void* arg_1, const void* arg_2);
+    IMGUI_API bool          DataTypeApplyFromText(const char* buf, ImGuiDataType data_type, void* p_data, const char* format);
+    IMGUI_API int           DataTypeCompare(ImGuiDataType data_type, const void* arg_1, const void* arg_2);
+    IMGUI_API bool          DataTypeClamp(ImGuiDataType data_type, void* p_data, const void* p_min, const void* p_max);
+
+    // InputText
+    IMGUI_API bool          InputTextEx(const char* label, const char* hint, char* buf, int buf_size, const ImVec2& size_arg, ImGuiInputTextFlags flags, ImGuiInputTextCallback callback = NULL, void* user_data = NULL);
+    IMGUI_API bool          TempInputText(const ImRect& bb, ImGuiID id, const char* label, char* buf, int buf_size, ImGuiInputTextFlags flags);
+    IMGUI_API bool          TempInputScalar(const ImRect& bb, ImGuiID id, const char* label, ImGuiDataType data_type, void* p_data, const char* format, const void* p_clamp_min = NULL, const void* p_clamp_max = NULL);
+    inline bool             TempInputIsActive(ImGuiID id)       { ImGuiContext& g = *GImGui; return (g.ActiveId == id && g.TempInputId == id); }
+    inline ImGuiInputTextState* GetInputTextState(ImGuiID id)   { ImGuiContext& g = *GImGui; return (g.InputTextState.ID == id) ? &g.InputTextState : NULL; } // Get input text state if active
+
+    // Color
+    IMGUI_API void          ColorTooltip(const char* text, const float* col, ImGuiColorEditFlags flags);
+    IMGUI_API void          ColorEditOptionsPopup(const float* col, ImGuiColorEditFlags flags);
+    IMGUI_API void          ColorPickerOptionsPopup(const float* ref_col, ImGuiColorEditFlags flags);
+
+    // Plot
+    IMGUI_API int           PlotEx(ImGuiPlotType plot_type, const char* label, float (*values_getter)(void* data, int idx), void* data, int values_count, int values_offset, const char* overlay_text, float scale_min, float scale_max, ImVec2 frame_size);
+
+    // Shade functions (write over already created vertices)
+    IMGUI_API void          ShadeVertsLinearColorGradientKeepAlpha(ImDrawList* draw_list, int vert_start_idx, int vert_end_idx, ImVec2 gradient_p0, ImVec2 gradient_p1, ImU32 col0, ImU32 col1);
+    IMGUI_API void          ShadeVertsLinearUV(ImDrawList* draw_list, int vert_start_idx, int vert_end_idx, const ImVec2& a, const ImVec2& b, const ImVec2& uv_a, const ImVec2& uv_b, bool clamp);
+
+    // Garbage collection
+    IMGUI_API void          GcCompactTransientMiscBuffers();
+    IMGUI_API void          GcCompactTransientWindowBuffers(ImGuiWindow* window);
+    IMGUI_API void          GcAwakeTransientWindowBuffers(ImGuiWindow* window);
+
+    // Debug Log
+    IMGUI_API void          DebugLog(const char* fmt, ...) IM_FMTARGS(1);
+    IMGUI_API void          DebugLogV(const char* fmt, va_list args) IM_FMTLIST(1);
+    
+    // Debug Tools
+    IMGUI_API void          ErrorCheckEndFrameRecover(ImGuiErrorLogCallback log_callback, void* user_data = NULL);
+    IMGUI_API void          ErrorCheckEndWindowRecover(ImGuiErrorLogCallback log_callback, void* user_data = NULL);
+    inline void             DebugDrawItemRect(ImU32 col = IM_COL32(255,0,0,255))    { ImGuiContext& g = *GImGui; ImGuiWindow* window = g.CurrentWindow; GetForegroundDrawList(window)->AddRect(g.LastItemData.Rect.Min, g.LastItemData.Rect.Max, col); }
+    inline void             DebugStartItemPicker()                                  { ImGuiContext& g = *GImGui; g.DebugItemPickerActive = true; }
+    IMGUI_API void          ShowFontAtlas(ImFontAtlas* atlas);
+    IMGUI_API void          DebugHookIdInfo(ImGuiID id, ImGuiDataType data_type, const void* data_id, const void* data_id_end);
+    IMGUI_API void          DebugNodeColumns(ImGuiOldColumns* columns);
+    IMGUI_API void          DebugNodeDrawList(ImGuiWindow* window, const ImDrawList* draw_list, const char* label);
+    IMGUI_API void          DebugNodeDrawCmdShowMeshAndBoundingBox(ImDrawList* out_draw_list, const ImDrawList* draw_list, const ImDrawCmd* draw_cmd, bool show_mesh, bool show_aabb);
+    IMGUI_API void          DebugNodeFont(ImFont* font);
+    IMGUI_API void          DebugNodeFontGlyph(ImFont* font, const ImFontGlyph* glyph);
+    IMGUI_API void          DebugNodeStorage(ImGuiStorage* storage, const char* label);
+    IMGUI_API void          DebugNodeTabBar(ImGuiTabBar* tab_bar, const char* label);
+    IMGUI_API void          DebugNodeTable(ImGuiTable* table);
+    IMGUI_API void          DebugNodeTableSettings(ImGuiTableSettings* settings);
+    IMGUI_API void          DebugNodeInputTextState(ImGuiInputTextState* state);
+    IMGUI_API void          DebugNodeWindow(ImGuiWindow* window, const char* label);
+    IMGUI_API void          DebugNodeWindowSettings(ImGuiWindowSettings* settings);
+    IMGUI_API void          DebugNodeWindowsList(ImVector<ImGuiWindow*>* windows, const char* label);
+    IMGUI_API void          DebugNodeWindowsListByBeginStackParent(ImGuiWindow** windows, int windows_size, ImGuiWindow* parent_in_begin_stack);
+    IMGUI_API void          DebugNodeViewport(ImGuiViewportP* viewport);
+    IMGUI_API void          DebugRenderViewportThumbnail(ImDrawList* draw_list, ImGuiViewportP* viewport, const ImRect& bb);
+
+} // namespace ImGui
+
+
+//-----------------------------------------------------------------------------
+// [SECTION] ImFontAtlas internal API
+//-----------------------------------------------------------------------------
+
+// This structure is likely to evolve as we add support for incremental atlas updates
+struct ImFontBuilderIO
+{
+    bool    (*FontBuilder_Build)(ImFontAtlas* atlas);
+};
+
+// Helper for font builder
+#ifdef IMGUI_ENABLE_STB_TRUETYPE
+IMGUI_API const ImFontBuilderIO* ImFontAtlasGetBuilderForStbTruetype();
+#endif
+IMGUI_API void      ImFontAtlasBuildInit(ImFontAtlas* atlas);
+IMGUI_API void      ImFontAtlasBuildSetupFont(ImFontAtlas* atlas, ImFont* font, ImFontConfig* font_config, float ascent, float descent);
+IMGUI_API void      ImFontAtlasBuildPackCustomRects(ImFontAtlas* atlas, void* stbrp_context_opaque);
+IMGUI_API void      ImFontAtlasBuildFinish(ImFontAtlas* atlas);
+IMGUI_API void      ImFontAtlasBuildRender8bppRectFromString(ImFontAtlas* atlas, int x, int y, int w, int h, const char* in_str, char in_marker_char, unsigned char in_marker_pixel_value);
+IMGUI_API void      ImFontAtlasBuildRender32bppRectFromString(ImFontAtlas* atlas, int x, int y, int w, int h, const char* in_str, char in_marker_char, unsigned int in_marker_pixel_value);
+IMGUI_API void      ImFontAtlasBuildMultiplyCalcLookupTable(unsigned char out_table[256], float in_multiply_factor);
+IMGUI_API void      ImFontAtlasBuildMultiplyRectAlpha8(const unsigned char table[256], unsigned char* pixels, int x, int y, int w, int h, int stride);
+
+//-----------------------------------------------------------------------------
+// [SECTION] Test Engine specific hooks (imgui_test_engine)
+//-----------------------------------------------------------------------------
+
+#ifdef IMGUI_ENABLE_TEST_ENGINE
+extern void         ImGuiTestEngineHook_ItemAdd(ImGuiContext* ctx, const ImRect& bb, ImGuiID id);
+extern void         ImGuiTestEngineHook_ItemInfo(ImGuiContext* ctx, ImGuiID id, const char* label, ImGuiItemStatusFlags flags);
+extern void         ImGuiTestEngineHook_Log(ImGuiContext* ctx, const char* fmt, ...);
+extern const char*  ImGuiTestEngine_FindItemDebugLabel(ImGuiContext* ctx, ImGuiID id);
+
+#define IMGUI_TEST_ENGINE_ITEM_ADD(_BB,_ID)                 if (g.TestEngineHookItems) ImGuiTestEngineHook_ItemAdd(&g, _BB, _ID)               // Register item bounding box
+#define IMGUI_TEST_ENGINE_ITEM_INFO(_ID,_LABEL,_FLAGS)      if (g.TestEngineHookItems) ImGuiTestEngineHook_ItemInfo(&g, _ID, _LABEL, _FLAGS)   // Register item label and status flags (optional)
+#define IMGUI_TEST_ENGINE_LOG(_FMT,...)                     if (g.TestEngineHookItems) ImGuiTestEngineHook_Log(&g, _FMT, __VA_ARGS__)          // Custom log entry from user land into test log
+#else
+#define IMGUI_TEST_ENGINE_ITEM_ADD(_BB,_ID)                 ((void)0)
+#define IMGUI_TEST_ENGINE_ITEM_INFO(_ID,_LABEL,_FLAGS)      ((void)g)
+#endif
+
+//-----------------------------------------------------------------------------
+
+#if defined(__clang__)
+#pragma clang diagnostic pop
+#elif defined(__GNUC__)
+#pragma GCC diagnostic pop
+#endif
+
+#ifdef _MSC_VER
+#pragma warning (pop)
+#endif
+
+#endif // #ifndef IMGUI_DISABLE
diff --git a/tests/manual/rhi/shared/imgui/imgui/imgui_tables.cpp b/tests/manual/rhi/shared/imgui/imgui/imgui_tables.cpp
new file mode 100644
index 00000000..c3e24af3
--- /dev/null
+++ b/tests/manual/rhi/shared/imgui/imgui/imgui_tables.cpp
@@ -0,0 +1,4068 @@
+// dear imgui, v1.88
+// (tables and columns code)
+
+/*
+
+Index of this file:
+
+// [SECTION] Commentary
+// [SECTION] Header mess
+// [SECTION] Tables: Main code
+// [SECTION] Tables: Simple accessors
+// [SECTION] Tables: Row changes
+// [SECTION] Tables: Columns changes
+// [SECTION] Tables: Columns width management
+// [SECTION] Tables: Drawing
+// [SECTION] Tables: Sorting
+// [SECTION] Tables: Headers
+// [SECTION] Tables: Context Menu
+// [SECTION] Tables: Settings (.ini data)
+// [SECTION] Tables: Garbage Collection
+// [SECTION] Tables: Debugging
+// [SECTION] Columns, BeginColumns, EndColumns, etc.
+
+*/
+
+// Navigating this file:
+// - In Visual Studio IDE: CTRL+comma ("Edit.GoToAll") can follow symbols in comments, whereas CTRL+F12 ("Edit.GoToImplementation") cannot.
+// - With Visual Assist installed: ALT+G ("VAssistX.GoToImplementation") can also follow symbols in comments.
+
+//-----------------------------------------------------------------------------
+// [SECTION] Commentary
+//-----------------------------------------------------------------------------
+
+//-----------------------------------------------------------------------------
+// Typical tables call flow: (root level is generally public API):
+//-----------------------------------------------------------------------------
+// - BeginTable()                               user begin into a table
+//    | BeginChild()                            - (if ScrollX/ScrollY is set)
+//    | TableBeginInitMemory()                  - first time table is used
+//    | TableResetSettings()                    - on settings reset
+//    | TableLoadSettings()                     - on settings load
+//    | TableBeginApplyRequests()               - apply queued resizing/reordering/hiding requests
+//    | - TableSetColumnWidth()                 - apply resizing width (for mouse resize, often requested by previous frame)
+//    |    - TableUpdateColumnsWeightFromWidth()- recompute columns weights (of stretch columns) from their respective width
+// - TableSetupColumn()                         user submit columns details (optional)
+// - TableSetupScrollFreeze()                   user submit scroll freeze information (optional)
+//-----------------------------------------------------------------------------
+// - TableUpdateLayout() [Internal]             followup to BeginTable(): setup everything: widths, columns positions, clipping rectangles. Automatically called by the FIRST call to TableNextRow() or TableHeadersRow().
+//    | TableSetupDrawChannels()                - setup ImDrawList channels
+//    | TableUpdateBorders()                    - detect hovering columns for resize, ahead of contents submission
+//    | TableDrawContextMenu()                  - draw right-click context menu
+//-----------------------------------------------------------------------------
+// - TableHeadersRow() or TableHeader()         user submit a headers row (optional)
+//    | TableSortSpecsClickColumn()             - when left-clicked: alter sort order and sort direction
+//    | TableOpenContextMenu()                  - when right-clicked: trigger opening of the default context menu
+// - TableGetSortSpecs()                        user queries updated sort specs (optional, generally after submitting headers)
+// - TableNextRow()                             user begin into a new row (also automatically called by TableHeadersRow())
+//    | TableEndRow()                           - finish existing row
+//    | TableBeginRow()                         - add a new row
+// - TableSetColumnIndex() / TableNextColumn()  user begin into a cell
+//    | TableEndCell()                          - close existing column/cell
+//    | TableBeginCell()                        - enter into current column/cell
+// - [...]                                      user emit contents
+//-----------------------------------------------------------------------------
+// - EndTable()                                 user ends the table
+//    | TableDrawBorders()                      - draw outer borders, inner vertical borders
+//    | TableMergeDrawChannels()                - merge draw channels if clipping isn't required
+//    | EndChild()                              - (if ScrollX/ScrollY is set)
+//-----------------------------------------------------------------------------
+
+//-----------------------------------------------------------------------------
+// TABLE SIZING
+//-----------------------------------------------------------------------------
+// (Read carefully because this is subtle but it does make sense!)
+//-----------------------------------------------------------------------------
+// About 'outer_size':
+// Its meaning needs to differ slightly depending on if we are using ScrollX/ScrollY flags.
+// Default value is ImVec2(0.0f, 0.0f).
+//   X
+//   - outer_size.x <= 0.0f  ->  Right-align from window/work-rect right-most edge. With -FLT_MIN or 0.0f will align exactly on right-most edge.
+//   - outer_size.x  > 0.0f  ->  Set Fixed width.
+//   Y with ScrollX/ScrollY disabled: we output table directly in current window
+//   - outer_size.y  < 0.0f  ->  Bottom-align (but will auto extend, unless _NoHostExtendY is set). Not meaningful is parent window can vertically scroll.
+//   - outer_size.y  = 0.0f  ->  No minimum height (but will auto extend, unless _NoHostExtendY is set)
+//   - outer_size.y  > 0.0f  ->  Set Minimum height (but will auto extend, unless _NoHostExtenY is set)
+//   Y with ScrollX/ScrollY enabled: using a child window for scrolling
+//   - outer_size.y  < 0.0f  ->  Bottom-align. Not meaningful is parent window can vertically scroll.
+//   - outer_size.y  = 0.0f  ->  Bottom-align, consistent with BeginChild(). Not recommended unless table is last item in parent window.
+//   - outer_size.y  > 0.0f  ->  Set Exact height. Recommended when using Scrolling on any axis.
+//-----------------------------------------------------------------------------
+// Outer size is also affected by the NoHostExtendX/NoHostExtendY flags.
+// Important to that note how the two flags have slightly different behaviors!
+//   - ImGuiTableFlags_NoHostExtendX -> Make outer width auto-fit to columns (overriding outer_size.x value). Only available when ScrollX/ScrollY are disabled and Stretch columns are not used.
+//   - ImGuiTableFlags_NoHostExtendY -> Make outer height stop exactly at outer_size.y (prevent auto-extending table past the limit). Only available when ScrollX/ScrollY is disabled. Data below the limit will be clipped and not visible.
+// In theory ImGuiTableFlags_NoHostExtendY could be the default and any non-scrolling tables with outer_size.y != 0.0f would use exact height.
+// This would be consistent but perhaps less useful and more confusing (as vertically clipped items are not easily noticeable)
+//-----------------------------------------------------------------------------
+// About 'inner_width':
+//   With ScrollX disabled:
+//   - inner_width          ->  *ignored*
+//   With ScrollX enabled:
+//   - inner_width  < 0.0f  ->  *illegal* fit in known width (right align from outer_size.x) <-- weird
+//   - inner_width  = 0.0f  ->  fit in outer_width: Fixed size columns will take space they need (if avail, otherwise shrink down), Stretch columns becomes Fixed columns.
+//   - inner_width  > 0.0f  ->  override scrolling width, generally to be larger than outer_size.x. Fixed column take space they need (if avail, otherwise shrink down), Stretch columns share remaining space!
+//-----------------------------------------------------------------------------
+// Details:
+// - If you want to use Stretch columns with ScrollX, you generally need to specify 'inner_width' otherwise the concept
+//   of "available space" doesn't make sense.
+// - Even if not really useful, we allow 'inner_width < outer_size.x' for consistency and to facilitate understanding
+//   of what the value does.
+//-----------------------------------------------------------------------------
+
+//-----------------------------------------------------------------------------
+// COLUMNS SIZING POLICIES
+//-----------------------------------------------------------------------------
+// About overriding column sizing policy and width/weight with TableSetupColumn():
+// We use a default parameter of 'init_width_or_weight == -1'.
+//   - with ImGuiTableColumnFlags_WidthFixed,    init_width  <= 0 (default)  --> width is automatic
+//   - with ImGuiTableColumnFlags_WidthFixed,    init_width  >  0 (explicit) --> width is custom
+//   - with ImGuiTableColumnFlags_WidthStretch,  init_weight <= 0 (default)  --> weight is 1.0f
+//   - with ImGuiTableColumnFlags_WidthStretch,  init_weight >  0 (explicit) --> weight is custom
+// Widths are specified _without_ CellPadding. If you specify a width of 100.0f, the column will be cover (100.0f + Padding * 2.0f)
+// and you can fit a 100.0f wide item in it without clipping and with full padding.
+//-----------------------------------------------------------------------------
+// About default sizing policy (if you don't specify a ImGuiTableColumnFlags_WidthXXXX flag)
+//   - with Table policy ImGuiTableFlags_SizingFixedFit      --> default Column policy is ImGuiTableColumnFlags_WidthFixed, default Width is equal to contents width
+//   - with Table policy ImGuiTableFlags_SizingFixedSame     --> default Column policy is ImGuiTableColumnFlags_WidthFixed, default Width is max of all contents width
+//   - with Table policy ImGuiTableFlags_SizingStretchSame   --> default Column policy is ImGuiTableColumnFlags_WidthStretch, default Weight is 1.0f
+//   - with Table policy ImGuiTableFlags_SizingStretchWeight --> default Column policy is ImGuiTableColumnFlags_WidthStretch, default Weight is proportional to contents
+// Default Width and default Weight can be overridden when calling TableSetupColumn().
+//-----------------------------------------------------------------------------
+// About mixing Fixed/Auto and Stretch columns together:
+//   - the typical use of mixing sizing policies is: any number of LEADING Fixed columns, followed by one or two TRAILING Stretch columns.
+//   - using mixed policies with ScrollX does not make much sense, as using Stretch columns with ScrollX does not make much sense in the first place!
+//     that is, unless 'inner_width' is passed to BeginTable() to explicitly provide a total width to layout columns in.
+//   - when using ImGuiTableFlags_SizingFixedSame with mixed columns, only the Fixed/Auto columns will match their widths to the width of the maximum contents.
+//   - when using ImGuiTableFlags_SizingStretchSame with mixed columns, only the Stretch columns will match their weight/widths.
+//-----------------------------------------------------------------------------
+// About using column width:
+// If a column is manual resizable or has a width specified with TableSetupColumn():
+//   - you may use GetContentRegionAvail().x to query the width available in a given column.
+//   - right-side alignment features such as SetNextItemWidth(-x) or PushItemWidth(-x) will rely on this width.
+// If the column is not resizable and has no width specified with TableSetupColumn():
+//   - its width will be automatic and be set to the max of items submitted.
+//   - therefore you generally cannot have ALL items of the columns use e.g. SetNextItemWidth(-FLT_MIN).
+//   - but if the column has one or more items of known/fixed size, this will become the reference width used by SetNextItemWidth(-FLT_MIN).
+//-----------------------------------------------------------------------------
+
+
+//-----------------------------------------------------------------------------
+// TABLES CLIPPING/CULLING
+//-----------------------------------------------------------------------------
+// About clipping/culling of Rows in Tables:
+// - For large numbers of rows, it is recommended you use ImGuiListClipper to only submit visible rows.
+//   ImGuiListClipper is reliant on the fact that rows are of equal height.
+//   See 'Demo->Tables->Vertical Scrolling' or 'Demo->Tables->Advanced' for a demo of using the clipper.
+// - Note that auto-resizing columns don't play well with using the clipper.
+//   By default a table with _ScrollX but without _Resizable will have column auto-resize.
+//   So, if you want to use the clipper, make sure to either enable _Resizable, either setup columns width explicitly with _WidthFixed.
+//-----------------------------------------------------------------------------
+// About clipping/culling of Columns in Tables:
+// - Both TableSetColumnIndex() and TableNextColumn() return true when the column is visible or performing
+//   width measurements. Otherwise, you may skip submitting the contents of a cell/column, BUT ONLY if you know
+//   it is not going to contribute to row height.
+//   In many situations, you may skip submitting contents for every column but one (e.g. the first one).
+// - Case A: column is not hidden by user, and at least partially in sight (most common case).
+// - Case B: column is clipped / out of sight (because of scrolling or parent ClipRect): TableNextColumn() return false as a hint but we still allow layout output.
+// - Case C: column is hidden explicitly by the user (e.g. via the context menu, or _DefaultHide column flag, etc.).
+//
+//                        [A]         [B]          [C]
+//  TableNextColumn():    true        false        false       -> [userland] when TableNextColumn() / TableSetColumnIndex() return false, user can skip submitting items but only if the column doesn't contribute to row height.
+//          SkipItems:    false       false        true        -> [internal] when SkipItems is true, most widgets will early out if submitted, resulting is no layout output.
+//           ClipRect:    normal      zero-width   zero-width  -> [internal] when ClipRect is zero, ItemAdd() will return false and most widgets will early out mid-way.
+//  ImDrawList output:    normal      dummy        dummy       -> [internal] when using the dummy channel, ImDrawList submissions (if any) will be wasted (because cliprect is zero-width anyway).
+//
+// - We need to distinguish those cases because non-hidden columns that are clipped outside of scrolling bounds should still contribute their height to the row.
+//   However, in the majority of cases, the contribution to row height is the same for all columns, or the tallest cells are known by the programmer.
+//-----------------------------------------------------------------------------
+// About clipping/culling of whole Tables:
+// - Scrolling tables with a known outer size can be clipped earlier as BeginTable() will return false.
+//-----------------------------------------------------------------------------
+
+//-----------------------------------------------------------------------------
+// [SECTION] Header mess
+//-----------------------------------------------------------------------------
+
+#if defined(_MSC_VER) && !defined(_CRT_SECURE_NO_WARNINGS)
+#define _CRT_SECURE_NO_WARNINGS
+#endif
+
+#include "imgui.h"
+#ifndef IMGUI_DISABLE
+
+#ifndef IMGUI_DEFINE_MATH_OPERATORS
+#define IMGUI_DEFINE_MATH_OPERATORS
+#endif
+#include "imgui_internal.h"
+
+// System includes
+#if defined(_MSC_VER) && _MSC_VER <= 1500 // MSVC 2008 or earlier
+#include <stddef.h>     // intptr_t
+#else
+#include <stdint.h>     // intptr_t
+#endif
+
+// Visual Studio warnings
+#ifdef _MSC_VER
+#pragma warning (disable: 4127)     // condition expression is constant
+#pragma warning (disable: 4996)     // 'This function or variable may be unsafe': strcpy, strdup, sprintf, vsnprintf, sscanf, fopen
+#if defined(_MSC_VER) && _MSC_VER >= 1922 // MSVC 2019 16.2 or later
+#pragma warning (disable: 5054)     // operator '|': deprecated between enumerations of different types
+#endif
+#pragma warning (disable: 26451)    // [Static Analyzer] Arithmetic overflow : Using operator 'xxx' on a 4 byte value and then casting the result to a 8 byte value. Cast the value to the wider type before calling operator 'xxx' to avoid overflow(io.2).
+#pragma warning (disable: 26812)    // [Static Analyzer] The enum type 'xxx' is unscoped. Prefer 'enum class' over 'enum' (Enum.3).
+#endif
+
+// Clang/GCC warnings with -Weverything
+#if defined(__clang__)
+#if __has_warning("-Wunknown-warning-option")
+#pragma clang diagnostic ignored "-Wunknown-warning-option"         // warning: unknown warning group 'xxx'                      // not all warnings are known by all Clang versions and they tend to be rename-happy.. so ignoring warnings triggers new warnings on some configuration. Great!
+#endif
+#pragma clang diagnostic ignored "-Wunknown-pragmas"                // warning: unknown warning group 'xxx'
+#pragma clang diagnostic ignored "-Wold-style-cast"                 // warning: use of old-style cast                            // yes, they are more terse.
+#pragma clang diagnostic ignored "-Wfloat-equal"                    // warning: comparing floating point with == or != is unsafe // storing and comparing against same constants (typically 0.0f) is ok.
+#pragma clang diagnostic ignored "-Wformat-nonliteral"              // warning: format string is not a string literal            // passing non-literal to vsnformat(). yes, user passing incorrect format strings can crash the code.
+#pragma clang diagnostic ignored "-Wsign-conversion"                // warning: implicit conversion changes signedness
+#pragma clang diagnostic ignored "-Wzero-as-null-pointer-constant"  // warning: zero as null pointer constant                    // some standard header variations use #define NULL 0
+#pragma clang diagnostic ignored "-Wdouble-promotion"               // warning: implicit conversion from 'float' to 'double' when passing argument to function  // using printf() is a misery with this as C++ va_arg ellipsis changes float to double.
+#pragma clang diagnostic ignored "-Wenum-enum-conversion"           // warning: bitwise operation between different enumeration types ('XXXFlags_' and 'XXXFlagsPrivate_')
+#pragma clang diagnostic ignored "-Wdeprecated-enum-enum-conversion"// warning: bitwise operation between different enumeration types ('XXXFlags_' and 'XXXFlagsPrivate_') is deprecated
+#pragma clang diagnostic ignored "-Wimplicit-int-float-conversion"  // warning: implicit conversion from 'xxx' to 'float' may lose precision
+#elif defined(__GNUC__)
+#pragma GCC diagnostic ignored "-Wpragmas"                          // warning: unknown option after '#pragma GCC diagnostic' kind
+#pragma GCC diagnostic ignored "-Wformat-nonliteral"                // warning: format not a string literal, format string not checked
+#pragma GCC diagnostic ignored "-Wclass-memaccess"                  // [__GNUC__ >= 8] warning: 'memset/memcpy' clearing/writing an object of type 'xxxx' with no trivial copy-assignment; use assignment or value-initialization instead
+#endif
+
+//-----------------------------------------------------------------------------
+// [SECTION] Tables: Main code
+//-----------------------------------------------------------------------------
+// - TableFixFlags() [Internal]
+// - TableFindByID() [Internal]
+// - BeginTable()
+// - BeginTableEx() [Internal]
+// - TableBeginInitMemory() [Internal]
+// - TableBeginApplyRequests() [Internal]
+// - TableSetupColumnFlags() [Internal]
+// - TableUpdateLayout() [Internal]
+// - TableUpdateBorders() [Internal]
+// - EndTable()
+// - TableSetupColumn()
+// - TableSetupScrollFreeze()
+//-----------------------------------------------------------------------------
+
+// Configuration
+static const int TABLE_DRAW_CHANNEL_BG0 = 0;
+static const int TABLE_DRAW_CHANNEL_BG2_FROZEN = 1;
+static const int TABLE_DRAW_CHANNEL_NOCLIP = 2;                     // When using ImGuiTableFlags_NoClip (this becomes the last visible channel)
+static const float TABLE_BORDER_SIZE                     = 1.0f;    // FIXME-TABLE: Currently hard-coded because of clipping assumptions with outer borders rendering.
+static const float TABLE_RESIZE_SEPARATOR_HALF_THICKNESS = 4.0f;    // Extend outside inner borders.
+static const float TABLE_RESIZE_SEPARATOR_FEEDBACK_TIMER = 0.06f;   // Delay/timer before making the hover feedback (color+cursor) visible because tables/columns tends to be more cramped.
+
+// Helper
+inline ImGuiTableFlags TableFixFlags(ImGuiTableFlags flags, ImGuiWindow* outer_window)
+{
+    // Adjust flags: set default sizing policy
+    if ((flags & ImGuiTableFlags_SizingMask_) == 0)
+        flags |= ((flags & ImGuiTableFlags_ScrollX) || (outer_window->Flags & ImGuiWindowFlags_AlwaysAutoResize)) ? ImGuiTableFlags_SizingFixedFit : ImGuiTableFlags_SizingStretchSame;
+
+    // Adjust flags: enable NoKeepColumnsVisible when using ImGuiTableFlags_SizingFixedSame
+    if ((flags & ImGuiTableFlags_SizingMask_) == ImGuiTableFlags_SizingFixedSame)
+        flags |= ImGuiTableFlags_NoKeepColumnsVisible;
+
+    // Adjust flags: enforce borders when resizable
+    if (flags & ImGuiTableFlags_Resizable)
+        flags |= ImGuiTableFlags_BordersInnerV;
+
+    // Adjust flags: disable NoHostExtendX/NoHostExtendY if we have any scrolling going on
+    if (flags & (ImGuiTableFlags_ScrollX | ImGuiTableFlags_ScrollY))
+        flags &= ~(ImGuiTableFlags_NoHostExtendX | ImGuiTableFlags_NoHostExtendY);
+
+    // Adjust flags: NoBordersInBodyUntilResize takes priority over NoBordersInBody
+    if (flags & ImGuiTableFlags_NoBordersInBodyUntilResize)
+        flags &= ~ImGuiTableFlags_NoBordersInBody;
+
+    // Adjust flags: disable saved settings if there's nothing to save
+    if ((flags & (ImGuiTableFlags_Resizable | ImGuiTableFlags_Hideable | ImGuiTableFlags_Reorderable | ImGuiTableFlags_Sortable)) == 0)
+        flags |= ImGuiTableFlags_NoSavedSettings;
+
+    // Inherit _NoSavedSettings from top-level window (child windows always have _NoSavedSettings set)
+    if (outer_window->RootWindow->Flags & ImGuiWindowFlags_NoSavedSettings)
+        flags |= ImGuiTableFlags_NoSavedSettings;
+
+    return flags;
+}
+
+ImGuiTable* ImGui::TableFindByID(ImGuiID id)
+{
+    ImGuiContext& g = *GImGui;
+    return g.Tables.GetByKey(id);
+}
+
+// Read about "TABLE SIZING" at the top of this file.
+bool    ImGui::BeginTable(const char* str_id, int columns_count, ImGuiTableFlags flags, const ImVec2& outer_size, float inner_width)
+{
+    ImGuiID id = GetID(str_id);
+    return BeginTableEx(str_id, id, columns_count, flags, outer_size, inner_width);
+}
+
+bool    ImGui::BeginTableEx(const char* name, ImGuiID id, int columns_count, ImGuiTableFlags flags, const ImVec2& outer_size, float inner_width)
+{
+    ImGuiContext& g = *GImGui;
+    ImGuiWindow* outer_window = GetCurrentWindow();
+    if (outer_window->SkipItems) // Consistent with other tables + beneficial side effect that assert on miscalling EndTable() will be more visible.
+        return false;
+
+    // Sanity checks
+    IM_ASSERT(columns_count > 0 && columns_count <= IMGUI_TABLE_MAX_COLUMNS && "Only 1..64 columns allowed!");
+    if (flags & ImGuiTableFlags_ScrollX)
+        IM_ASSERT(inner_width >= 0.0f);
+
+    // If an outer size is specified ahead we will be able to early out when not visible. Exact clipping rules may evolve.
+    const bool use_child_window = (flags & (ImGuiTableFlags_ScrollX | ImGuiTableFlags_ScrollY)) != 0;
+    const ImVec2 avail_size = GetContentRegionAvail();
+    ImVec2 actual_outer_size = CalcItemSize(outer_size, ImMax(avail_size.x, 1.0f), use_child_window ? ImMax(avail_size.y, 1.0f) : 0.0f);
+    ImRect outer_rect(outer_window->DC.CursorPos, outer_window->DC.CursorPos + actual_outer_size);
+    if (use_child_window && IsClippedEx(outer_rect, 0))
+    {
+        ItemSize(outer_rect);
+        return false;
+    }
+
+    // Acquire storage for the table
+    ImGuiTable* table = g.Tables.GetOrAddByKey(id);
+    const int instance_no = (table->LastFrameActive != g.FrameCount) ? 0 : table->InstanceCurrent + 1;
+    const ImGuiID instance_id = id + instance_no;
+    const ImGuiTableFlags table_last_flags = table->Flags;
+    if (instance_no > 0)
+        IM_ASSERT(table->ColumnsCount == columns_count && "BeginTable(): Cannot change columns count mid-frame while preserving same ID");
+
+    // Acquire temporary buffers
+    const int table_idx = g.Tables.GetIndex(table);
+    if (++g.TablesTempDataStacked > g.TablesTempData.Size)
+        g.TablesTempData.resize(g.TablesTempDataStacked, ImGuiTableTempData());
+    ImGuiTableTempData* temp_data = table->TempData = &g.TablesTempData[g.TablesTempDataStacked - 1];
+    temp_data->TableIndex = table_idx;
+    table->DrawSplitter = &table->TempData->DrawSplitter;
+    table->DrawSplitter->Clear();
+
+    // Fix flags
+    table->IsDefaultSizingPolicy = (flags & ImGuiTableFlags_SizingMask_) == 0;
+    flags = TableFixFlags(flags, outer_window);
+
+    // Initialize
+    table->ID = id;
+    table->Flags = flags;
+    table->InstanceCurrent = (ImS16)instance_no;
+    table->LastFrameActive = g.FrameCount;
+    table->OuterWindow = table->InnerWindow = outer_window;
+    table->ColumnsCount = columns_count;
+    table->IsLayoutLocked = false;
+    table->InnerWidth = inner_width;
+    temp_data->UserOuterSize = outer_size;
+    if (instance_no > 0 && table->InstanceDataExtra.Size < instance_no)
+        table->InstanceDataExtra.push_back(ImGuiTableInstanceData());
+
+    // When not using a child window, WorkRect.Max will grow as we append contents.
+    if (use_child_window)
+    {
+        // Ensure no vertical scrollbar appears if we only want horizontal one, to make flag consistent
+        // (we have no other way to disable vertical scrollbar of a window while keeping the horizontal one showing)
+        ImVec2 override_content_size(FLT_MAX, FLT_MAX);
+        if ((flags & ImGuiTableFlags_ScrollX) && !(flags & ImGuiTableFlags_ScrollY))
+            override_content_size.y = FLT_MIN;
+
+        // Ensure specified width (when not specified, Stretched columns will act as if the width == OuterWidth and
+        // never lead to any scrolling). We don't handle inner_width < 0.0f, we could potentially use it to right-align
+        // based on the right side of the child window work rect, which would require knowing ahead if we are going to
+        // have decoration taking horizontal spaces (typically a vertical scrollbar).
+        if ((flags & ImGuiTableFlags_ScrollX) && inner_width > 0.0f)
+            override_content_size.x = inner_width;
+
+        if (override_content_size.x != FLT_MAX || override_content_size.y != FLT_MAX)
+            SetNextWindowContentSize(ImVec2(override_content_size.x != FLT_MAX ? override_content_size.x : 0.0f, override_content_size.y != FLT_MAX ? override_content_size.y : 0.0f));
+
+        // Reset scroll if we are reactivating it
+        if ((table_last_flags & (ImGuiTableFlags_ScrollX | ImGuiTableFlags_ScrollY)) == 0)
+            SetNextWindowScroll(ImVec2(0.0f, 0.0f));
+
+        // Create scrolling region (without border and zero window padding)
+        ImGuiWindowFlags child_flags = (flags & ImGuiTableFlags_ScrollX) ? ImGuiWindowFlags_HorizontalScrollbar : ImGuiWindowFlags_None;
+        BeginChildEx(name, instance_id, outer_rect.GetSize(), false, child_flags);
+        table->InnerWindow = g.CurrentWindow;
+        table->WorkRect = table->InnerWindow->WorkRect;
+        table->OuterRect = table->InnerWindow->Rect();
+        table->InnerRect = table->InnerWindow->InnerRect;
+        IM_ASSERT(table->InnerWindow->WindowPadding.x == 0.0f && table->InnerWindow->WindowPadding.y == 0.0f && table->InnerWindow->WindowBorderSize == 0.0f);
+    }
+    else
+    {
+        // For non-scrolling tables, WorkRect == OuterRect == InnerRect.
+        // But at this point we do NOT have a correct value for .Max.y (unless a height has been explicitly passed in). It will only be updated in EndTable().
+        table->WorkRect = table->OuterRect = table->InnerRect = outer_rect;
+    }
+
+    // Push a standardized ID for both child-using and not-child-using tables
+    PushOverrideID(instance_id);
+
+    // Backup a copy of host window members we will modify
+    ImGuiWindow* inner_window = table->InnerWindow;
+    table->HostIndentX = inner_window->DC.Indent.x;
+    table->HostClipRect = inner_window->ClipRect;
+    table->HostSkipItems = inner_window->SkipItems;
+    temp_data->HostBackupWorkRect = inner_window->WorkRect;
+    temp_data->HostBackupParentWorkRect = inner_window->ParentWorkRect;
+    temp_data->HostBackupColumnsOffset = outer_window->DC.ColumnsOffset;
+    temp_data->HostBackupPrevLineSize = inner_window->DC.PrevLineSize;
+    temp_data->HostBackupCurrLineSize = inner_window->DC.CurrLineSize;
+    temp_data->HostBackupCursorMaxPos = inner_window->DC.CursorMaxPos;
+    temp_data->HostBackupItemWidth = outer_window->DC.ItemWidth;
+    temp_data->HostBackupItemWidthStackSize = outer_window->DC.ItemWidthStack.Size;
+    inner_window->DC.PrevLineSize = inner_window->DC.CurrLineSize = ImVec2(0.0f, 0.0f);
+
+    // Padding and Spacing
+    // - None               ........Content..... Pad .....Content........
+    // - PadOuter           | Pad ..Content..... Pad .....Content.. Pad |
+    // - PadInner           ........Content.. Pad | Pad ..Content........
+    // - PadOuter+PadInner  | Pad ..Content.. Pad | Pad ..Content.. Pad |
+    const bool pad_outer_x = (flags & ImGuiTableFlags_NoPadOuterX) ? false : (flags & ImGuiTableFlags_PadOuterX) ? true : (flags & ImGuiTableFlags_BordersOuterV) != 0;
+    const bool pad_inner_x = (flags & ImGuiTableFlags_NoPadInnerX) ? false : true;
+    const float inner_spacing_for_border = (flags & ImGuiTableFlags_BordersInnerV) ? TABLE_BORDER_SIZE : 0.0f;
+    const float inner_spacing_explicit = (pad_inner_x && (flags & ImGuiTableFlags_BordersInnerV) == 0) ? g.Style.CellPadding.x : 0.0f;
+    const float inner_padding_explicit = (pad_inner_x && (flags & ImGuiTableFlags_BordersInnerV) != 0) ? g.Style.CellPadding.x : 0.0f;
+    table->CellSpacingX1 = inner_spacing_explicit + inner_spacing_for_border;
+    table->CellSpacingX2 = inner_spacing_explicit;
+    table->CellPaddingX = inner_padding_explicit;
+    table->CellPaddingY = g.Style.CellPadding.y;
+
+    const float outer_padding_for_border = (flags & ImGuiTableFlags_BordersOuterV) ? TABLE_BORDER_SIZE : 0.0f;
+    const float outer_padding_explicit = pad_outer_x ? g.Style.CellPadding.x : 0.0f;
+    table->OuterPaddingX = (outer_padding_for_border + outer_padding_explicit) - table->CellPaddingX;
+
+    table->CurrentColumn = -1;
+    table->CurrentRow = -1;
+    table->RowBgColorCounter = 0;
+    table->LastRowFlags = ImGuiTableRowFlags_None;
+    table->InnerClipRect = (inner_window == outer_window) ? table->WorkRect : inner_window->ClipRect;
+    table->InnerClipRect.ClipWith(table->WorkRect);     // We need this to honor inner_width
+    table->InnerClipRect.ClipWithFull(table->HostClipRect);
+    table->InnerClipRect.Max.y = (flags & ImGuiTableFlags_NoHostExtendY) ? ImMin(table->InnerClipRect.Max.y, inner_window->WorkRect.Max.y) : inner_window->ClipRect.Max.y;
+
+    table->RowPosY1 = table->RowPosY2 = table->WorkRect.Min.y; // This is needed somehow
+    table->RowTextBaseline = 0.0f; // This will be cleared again by TableBeginRow()
+    table->FreezeRowsRequest = table->FreezeRowsCount = 0; // This will be setup by TableSetupScrollFreeze(), if any
+    table->FreezeColumnsRequest = table->FreezeColumnsCount = 0;
+    table->IsUnfrozenRows = true;
+    table->DeclColumnsCount = 0;
+
+    // Using opaque colors facilitate overlapping elements of the grid
+    table->BorderColorStrong = GetColorU32(ImGuiCol_TableBorderStrong);
+    table->BorderColorLight = GetColorU32(ImGuiCol_TableBorderLight);
+
+    // Make table current
+    g.CurrentTable = table;
+    outer_window->DC.CurrentTableIdx = table_idx;
+    if (inner_window != outer_window) // So EndChild() within the inner window can restore the table properly.
+        inner_window->DC.CurrentTableIdx = table_idx;
+
+    if ((table_last_flags & ImGuiTableFlags_Reorderable) && (flags & ImGuiTableFlags_Reorderable) == 0)
+        table->IsResetDisplayOrderRequest = true;
+
+    // Mark as used
+    if (table_idx >= g.TablesLastTimeActive.Size)
+        g.TablesLastTimeActive.resize(table_idx + 1, -1.0f);
+    g.TablesLastTimeActive[table_idx] = (float)g.Time;
+    temp_data->LastTimeActive = (float)g.Time;
+    table->MemoryCompacted = false;
+
+    // Setup memory buffer (clear data if columns count changed)
+    ImGuiTableColumn* old_columns_to_preserve = NULL;
+    void* old_columns_raw_data = NULL;
+    const int old_columns_count = table->Columns.size();
+    if (old_columns_count != 0 && old_columns_count != columns_count)
+    {
+        // Attempt to preserve width on column count change (#4046)
+        old_columns_to_preserve = table->Columns.Data;
+        old_columns_raw_data = table->RawData;
+        table->RawData = NULL;
+    }
+    if (table->RawData == NULL)
+    {
+        TableBeginInitMemory(table, columns_count);
+        table->IsInitializing = table->IsSettingsRequestLoad = true;
+    }
+    if (table->IsResetAllRequest)
+        TableResetSettings(table);
+    if (table->IsInitializing)
+    {
+        // Initialize
+        table->SettingsOffset = -1;
+        table->IsSortSpecsDirty = true;
+        table->InstanceInteracted = -1;
+        table->ContextPopupColumn = -1;
+        table->ReorderColumn = table->ResizedColumn = table->LastResizedColumn = -1;
+        table->AutoFitSingleColumn = -1;
+        table->HoveredColumnBody = table->HoveredColumnBorder = -1;
+        for (int n = 0; n < columns_count; n++)
+        {
+            ImGuiTableColumn* column = &table->Columns[n];
+            if (old_columns_to_preserve && n < old_columns_count)
+            {
+                // FIXME: We don't attempt to preserve column order in this path.
+                *column = old_columns_to_preserve[n];
+            }
+            else
+            {
+                float width_auto = column->WidthAuto;
+                *column = ImGuiTableColumn();
+                column->WidthAuto = width_auto;
+                column->IsPreserveWidthAuto = true; // Preserve WidthAuto when reinitializing a live table: not technically necessary but remove a visible flicker
+                column->IsEnabled = column->IsUserEnabled = column->IsUserEnabledNextFrame = true;
+            }
+            column->DisplayOrder = table->DisplayOrderToIndex[n] = (ImGuiTableColumnIdx)n;
+        }
+    }
+    if (old_columns_raw_data)
+        IM_FREE(old_columns_raw_data);
+
+    // Load settings
+    if (table->IsSettingsRequestLoad)
+        TableLoadSettings(table);
+
+    // Handle DPI/font resize
+    // This is designed to facilitate DPI changes with the assumption that e.g. style.CellPadding has been scaled as well.
+    // It will also react to changing fonts with mixed results. It doesn't need to be perfect but merely provide a decent transition.
+    // FIXME-DPI: Provide consistent standards for reference size. Perhaps using g.CurrentDpiScale would be more self explanatory.
+    // This is will lead us to non-rounded WidthRequest in columns, which should work but is a poorly tested path.
+    const float new_ref_scale_unit = g.FontSize; // g.Font->GetCharAdvance('A') ?
+    if (table->RefScale != 0.0f && table->RefScale != new_ref_scale_unit)
+    {
+        const float scale_factor = new_ref_scale_unit / table->RefScale;
+        //IMGUI_DEBUG_PRINT("[table] %08X RefScaleUnit %.3f -> %.3f, scaling width by %.3f\n", table->ID, table->RefScaleUnit, new_ref_scale_unit, scale_factor);
+        for (int n = 0; n < columns_count; n++)
+            table->Columns[n].WidthRequest = table->Columns[n].WidthRequest * scale_factor;
+    }
+    table->RefScale = new_ref_scale_unit;
+
+    // Disable output until user calls TableNextRow() or TableNextColumn() leading to the TableUpdateLayout() call..
+    // This is not strictly necessary but will reduce cases were "out of table" output will be misleading to the user.
+    // Because we cannot safely assert in EndTable() when no rows have been created, this seems like our best option.
+    inner_window->SkipItems = true;
+
+    // Clear names
+    // At this point the ->NameOffset field of each column will be invalid until TableUpdateLayout() or the first call to TableSetupColumn()
+    if (table->ColumnsNames.Buf.Size > 0)
+        table->ColumnsNames.Buf.resize(0);
+
+    // Apply queued resizing/reordering/hiding requests
+    TableBeginApplyRequests(table);
+
+    return true;
+}
+
+// For reference, the average total _allocation count_ for a table is:
+// + 0 (for ImGuiTable instance, we are pooling allocations in g.Tables)
+// + 1 (for table->RawData allocated below)
+// + 1 (for table->ColumnsNames, if names are used)
+// Shared allocations per number of nested tables
+// + 1 (for table->Splitter._Channels)
+// + 2 * active_channels_count (for ImDrawCmd and ImDrawIdx buffers inside channels)
+// Where active_channels_count is variable but often == columns_count or columns_count + 1, see TableSetupDrawChannels() for details.
+// Unused channels don't perform their +2 allocations.
+void ImGui::TableBeginInitMemory(ImGuiTable* table, int columns_count)
+{
+    // Allocate single buffer for our arrays
+    ImSpanAllocator<3> span_allocator;
+    span_allocator.Reserve(0, columns_count * sizeof(ImGuiTableColumn));
+    span_allocator.Reserve(1, columns_count * sizeof(ImGuiTableColumnIdx));
+    span_allocator.Reserve(2, columns_count * sizeof(ImGuiTableCellData), 4);
+    table->RawData = IM_ALLOC(span_allocator.GetArenaSizeInBytes());
+    memset(table->RawData, 0, span_allocator.GetArenaSizeInBytes());
+    span_allocator.SetArenaBasePtr(table->RawData);
+    span_allocator.GetSpan(0, &table->Columns);
+    span_allocator.GetSpan(1, &table->DisplayOrderToIndex);
+    span_allocator.GetSpan(2, &table->RowCellData);
+}
+
+// Apply queued resizing/reordering/hiding requests
+void ImGui::TableBeginApplyRequests(ImGuiTable* table)
+{
+    // Handle resizing request
+    // (We process this at the first TableBegin of the frame)
+    // FIXME-TABLE: Contains columns if our work area doesn't allow for scrolling?
+    if (table->InstanceCurrent == 0)
+    {
+        if (table->ResizedColumn != -1 && table->ResizedColumnNextWidth != FLT_MAX)
+            TableSetColumnWidth(table->ResizedColumn, table->ResizedColumnNextWidth);
+        table->LastResizedColumn = table->ResizedColumn;
+        table->ResizedColumnNextWidth = FLT_MAX;
+        table->ResizedColumn = -1;
+
+        // Process auto-fit for single column, which is a special case for stretch columns and fixed columns with FixedSame policy.
+        // FIXME-TABLE: Would be nice to redistribute available stretch space accordingly to other weights, instead of giving it all to siblings.
+        if (table->AutoFitSingleColumn != -1)
+        {
+            TableSetColumnWidth(table->AutoFitSingleColumn, table->Columns[table->AutoFitSingleColumn].WidthAuto);
+            table->AutoFitSingleColumn = -1;
+        }
+    }
+
+    // Handle reordering request
+    // Note: we don't clear ReorderColumn after handling the request.
+    if (table->InstanceCurrent == 0)
+    {
+        if (table->HeldHeaderColumn == -1 && table->ReorderColumn != -1)
+            table->ReorderColumn = -1;
+        table->HeldHeaderColumn = -1;
+        if (table->ReorderColumn != -1 && table->ReorderColumnDir != 0)
+        {
+            // We need to handle reordering across hidden columns.
+            // In the configuration below, moving C to the right of E will lead to:
+            //    ... C [D] E  --->  ... [D] E  C   (Column name/index)
+            //    ... 2  3  4        ...  2  3  4   (Display order)
+            const int reorder_dir = table->ReorderColumnDir;
+            IM_ASSERT(reorder_dir == -1 || reorder_dir == +1);
+            IM_ASSERT(table->Flags & ImGuiTableFlags_Reorderable);
+            ImGuiTableColumn* src_column = &table->Columns[table->ReorderColumn];
+            ImGuiTableColumn* dst_column = &table->Columns[(reorder_dir == -1) ? src_column->PrevEnabledColumn : src_column->NextEnabledColumn];
+            IM_UNUSED(dst_column);
+            const int src_order = src_column->DisplayOrder;
+            const int dst_order = dst_column->DisplayOrder;
+            src_column->DisplayOrder = (ImGuiTableColumnIdx)dst_order;
+            for (int order_n = src_order + reorder_dir; order_n != dst_order + reorder_dir; order_n += reorder_dir)
+                table->Columns[table->DisplayOrderToIndex[order_n]].DisplayOrder -= (ImGuiTableColumnIdx)reorder_dir;
+            IM_ASSERT(dst_column->DisplayOrder == dst_order - reorder_dir);
+
+            // Display order is stored in both columns->IndexDisplayOrder and table->DisplayOrder[],
+            // rebuild the later from the former.
+            for (int column_n = 0; column_n < table->ColumnsCount; column_n++)
+                table->DisplayOrderToIndex[table->Columns[column_n].DisplayOrder] = (ImGuiTableColumnIdx)column_n;
+            table->ReorderColumnDir = 0;
+            table->IsSettingsDirty = true;
+        }
+    }
+
+    // Handle display order reset request
+    if (table->IsResetDisplayOrderRequest)
+    {
+        for (int n = 0; n < table->ColumnsCount; n++)
+            table->DisplayOrderToIndex[n] = table->Columns[n].DisplayOrder = (ImGuiTableColumnIdx)n;
+        table->IsResetDisplayOrderRequest = false;
+        table->IsSettingsDirty = true;
+    }
+}
+
+// Adjust flags: default width mode + stretch columns are not allowed when auto extending
+static void TableSetupColumnFlags(ImGuiTable* table, ImGuiTableColumn* column, ImGuiTableColumnFlags flags_in)
+{
+    ImGuiTableColumnFlags flags = flags_in;
+
+    // Sizing Policy
+    if ((flags & ImGuiTableColumnFlags_WidthMask_) == 0)
+    {
+        const ImGuiTableFlags table_sizing_policy = (table->Flags & ImGuiTableFlags_SizingMask_);
+        if (table_sizing_policy == ImGuiTableFlags_SizingFixedFit || table_sizing_policy == ImGuiTableFlags_SizingFixedSame)
+            flags |= ImGuiTableColumnFlags_WidthFixed;
+        else
+            flags |= ImGuiTableColumnFlags_WidthStretch;
+    }
+    else
+    {
+        IM_ASSERT(ImIsPowerOfTwo(flags & ImGuiTableColumnFlags_WidthMask_)); // Check that only 1 of each set is used.
+    }
+
+    // Resize
+    if ((table->Flags & ImGuiTableFlags_Resizable) == 0)
+        flags |= ImGuiTableColumnFlags_NoResize;
+
+    // Sorting
+    if ((flags & ImGuiTableColumnFlags_NoSortAscending) && (flags & ImGuiTableColumnFlags_NoSortDescending))
+        flags |= ImGuiTableColumnFlags_NoSort;
+
+    // Indentation
+    if ((flags & ImGuiTableColumnFlags_IndentMask_) == 0)
+        flags |= (table->Columns.index_from_ptr(column) == 0) ? ImGuiTableColumnFlags_IndentEnable : ImGuiTableColumnFlags_IndentDisable;
+
+    // Alignment
+    //if ((flags & ImGuiTableColumnFlags_AlignMask_) == 0)
+    //    flags |= ImGuiTableColumnFlags_AlignCenter;
+    //IM_ASSERT(ImIsPowerOfTwo(flags & ImGuiTableColumnFlags_AlignMask_)); // Check that only 1 of each set is used.
+
+    // Preserve status flags
+    column->Flags = flags | (column->Flags & ImGuiTableColumnFlags_StatusMask_);
+
+    // Build an ordered list of available sort directions
+    column->SortDirectionsAvailCount = column->SortDirectionsAvailMask = column->SortDirectionsAvailList = 0;
+    if (table->Flags & ImGuiTableFlags_Sortable)
+    {
+        int count = 0, mask = 0, list = 0;
+        if ((flags & ImGuiTableColumnFlags_PreferSortAscending)  != 0 && (flags & ImGuiTableColumnFlags_NoSortAscending)  == 0) { mask |= 1 << ImGuiSortDirection_Ascending;  list |= ImGuiSortDirection_Ascending  << (count << 1); count++; }
+        if ((flags & ImGuiTableColumnFlags_PreferSortDescending) != 0 && (flags & ImGuiTableColumnFlags_NoSortDescending) == 0) { mask |= 1 << ImGuiSortDirection_Descending; list |= ImGuiSortDirection_Descending << (count << 1); count++; }
+        if ((flags & ImGuiTableColumnFlags_PreferSortAscending)  == 0 && (flags & ImGuiTableColumnFlags_NoSortAscending)  == 0) { mask |= 1 << ImGuiSortDirection_Ascending;  list |= ImGuiSortDirection_Ascending  << (count << 1); count++; }
+        if ((flags & ImGuiTableColumnFlags_PreferSortDescending) == 0 && (flags & ImGuiTableColumnFlags_NoSortDescending) == 0) { mask |= 1 << ImGuiSortDirection_Descending; list |= ImGuiSortDirection_Descending << (count << 1); count++; }
+        if ((table->Flags & ImGuiTableFlags_SortTristate) || count == 0) { mask |= 1 << ImGuiSortDirection_None; count++; }
+        column->SortDirectionsAvailList = (ImU8)list;
+        column->SortDirectionsAvailMask = (ImU8)mask;
+        column->SortDirectionsAvailCount = (ImU8)count;
+        ImGui::TableFixColumnSortDirection(table, column);
+    }
+}
+
+// Layout columns for the frame. This is in essence the followup to BeginTable().
+// Runs on the first call to TableNextRow(), to give a chance for TableSetupColumn() to be called first.
+// FIXME-TABLE: Our width (and therefore our WorkRect) will be minimal in the first frame for _WidthAuto columns.
+// Increase feedback side-effect with widgets relying on WorkRect.Max.x... Maybe provide a default distribution for _WidthAuto columns?
+void ImGui::TableUpdateLayout(ImGuiTable* table)
+{
+    ImGuiContext& g = *GImGui;
+    IM_ASSERT(table->IsLayoutLocked == false);
+
+    const ImGuiTableFlags table_sizing_policy = (table->Flags & ImGuiTableFlags_SizingMask_);
+    table->IsDefaultDisplayOrder = true;
+    table->ColumnsEnabledCount = 0;
+    table->EnabledMaskByIndex = 0x00;
+    table->EnabledMaskByDisplayOrder = 0x00;
+    table->LeftMostEnabledColumn = -1;
+    table->MinColumnWidth = ImMax(1.0f, g.Style.FramePadding.x * 1.0f); // g.Style.ColumnsMinSpacing; // FIXME-TABLE
+
+    // [Part 1] Apply/lock Enabled and Order states. Calculate auto/ideal width for columns. Count fixed/stretch columns.
+    // Process columns in their visible orders as we are building the Prev/Next indices.
+    int count_fixed = 0;                // Number of columns that have fixed sizing policies
+    int count_stretch = 0;              // Number of columns that have stretch sizing policies
+    int prev_visible_column_idx = -1;
+    bool has_auto_fit_request = false;
+    bool has_resizable = false;
+    float stretch_sum_width_auto = 0.0f;
+    float fixed_max_width_auto = 0.0f;
+    for (int order_n = 0; order_n < table->ColumnsCount; order_n++)
+    {
+        const int column_n = table->DisplayOrderToIndex[order_n];
+        if (column_n != order_n)
+            table->IsDefaultDisplayOrder = false;
+        ImGuiTableColumn* column = &table->Columns[column_n];
+
+        // Clear column setup if not submitted by user. Currently we make it mandatory to call TableSetupColumn() every frame.
+        // It would easily work without but we're not ready to guarantee it since e.g. names need resubmission anyway.
+        // We take a slight shortcut but in theory we could be calling TableSetupColumn() here with dummy values, it should yield the same effect.
+        if (table->DeclColumnsCount <= column_n)
+        {
+            TableSetupColumnFlags(table, column, ImGuiTableColumnFlags_None);
+            column->NameOffset = -1;
+            column->UserID = 0;
+            column->InitStretchWeightOrWidth = -1.0f;
+        }
+
+        // Update Enabled state, mark settings and sort specs dirty
+        if (!(table->Flags & ImGuiTableFlags_Hideable) || (column->Flags & ImGuiTableColumnFlags_NoHide))
+            column->IsUserEnabledNextFrame = true;
+        if (column->IsUserEnabled != column->IsUserEnabledNextFrame)
+        {
+            column->IsUserEnabled = column->IsUserEnabledNextFrame;
+            table->IsSettingsDirty = true;
+        }
+        column->IsEnabled = column->IsUserEnabled && (column->Flags & ImGuiTableColumnFlags_Disabled) == 0;
+
+        if (column->SortOrder != -1 && !column->IsEnabled)
+            table->IsSortSpecsDirty = true;
+        if (column->SortOrder > 0 && !(table->Flags & ImGuiTableFlags_SortMulti))
+            table->IsSortSpecsDirty = true;
+
+        // Auto-fit unsized columns
+        const bool start_auto_fit = (column->Flags & ImGuiTableColumnFlags_WidthFixed) ? (column->WidthRequest < 0.0f) : (column->StretchWeight < 0.0f);
+        if (start_auto_fit)
+            column->AutoFitQueue = column->CannotSkipItemsQueue = (1 << 3) - 1; // Fit for three frames
+
+        if (!column->IsEnabled)
+        {
+            column->IndexWithinEnabledSet = -1;
+            continue;
+        }
+
+        // Mark as enabled and link to previous/next enabled column
+        column->PrevEnabledColumn = (ImGuiTableColumnIdx)prev_visible_column_idx;
+        column->NextEnabledColumn = -1;
+        if (prev_visible_column_idx != -1)
+            table->Columns[prev_visible_column_idx].NextEnabledColumn = (ImGuiTableColumnIdx)column_n;
+        else
+            table->LeftMostEnabledColumn = (ImGuiTableColumnIdx)column_n;
+        column->IndexWithinEnabledSet = table->ColumnsEnabledCount++;
+        table->EnabledMaskByIndex |= (ImU64)1 << column_n;
+        table->EnabledMaskByDisplayOrder |= (ImU64)1 << column->DisplayOrder;
+        prev_visible_column_idx = column_n;
+        IM_ASSERT(column->IndexWithinEnabledSet <= column->DisplayOrder);
+
+        // Calculate ideal/auto column width (that's the width required for all contents to be visible without clipping)
+        // Combine width from regular rows + width from headers unless requested not to.
+        if (!column->IsPreserveWidthAuto)
+            column->WidthAuto = TableGetColumnWidthAuto(table, column);
+
+        // Non-resizable columns keep their requested width (apply user value regardless of IsPreserveWidthAuto)
+        const bool column_is_resizable = (column->Flags & ImGuiTableColumnFlags_NoResize) == 0;
+        if (column_is_resizable)
+            has_resizable = true;
+        if ((column->Flags & ImGuiTableColumnFlags_WidthFixed) && column->InitStretchWeightOrWidth > 0.0f && !column_is_resizable)
+            column->WidthAuto = column->InitStretchWeightOrWidth;
+
+        if (column->AutoFitQueue != 0x00)
+            has_auto_fit_request = true;
+        if (column->Flags & ImGuiTableColumnFlags_WidthStretch)
+        {
+            stretch_sum_width_auto += column->WidthAuto;
+            count_stretch++;
+        }
+        else
+        {
+            fixed_max_width_auto = ImMax(fixed_max_width_auto, column->WidthAuto);
+            count_fixed++;
+        }
+    }
+    if ((table->Flags & ImGuiTableFlags_Sortable) && table->SortSpecsCount == 0 && !(table->Flags & ImGuiTableFlags_SortTristate))
+        table->IsSortSpecsDirty = true;
+    table->RightMostEnabledColumn = (ImGuiTableColumnIdx)prev_visible_column_idx;
+    IM_ASSERT(table->LeftMostEnabledColumn >= 0 && table->RightMostEnabledColumn >= 0);
+
+    // [Part 2] Disable child window clipping while fitting columns. This is not strictly necessary but makes it possible
+    // to avoid the column fitting having to wait until the first visible frame of the child container (may or not be a good thing).
+    // FIXME-TABLE: for always auto-resizing columns may not want to do that all the time.
+    if (has_auto_fit_request && table->OuterWindow != table->InnerWindow)
+        table->InnerWindow->SkipItems = false;
+    if (has_auto_fit_request)
+        table->IsSettingsDirty = true;
+
+    // [Part 3] Fix column flags and record a few extra information.
+    float sum_width_requests = 0.0f;        // Sum of all width for fixed and auto-resize columns, excluding width contributed by Stretch columns but including spacing/padding.
+    float stretch_sum_weights = 0.0f;       // Sum of all weights for stretch columns.
+    table->LeftMostStretchedColumn = table->RightMostStretchedColumn = -1;
+    for (int column_n = 0; column_n < table->ColumnsCount; column_n++)
+    {
+        if (!(table->EnabledMaskByIndex & ((ImU64)1 << column_n)))
+            continue;
+        ImGuiTableColumn* column = &table->Columns[column_n];
+
+        const bool column_is_resizable = (column->Flags & ImGuiTableColumnFlags_NoResize) == 0;
+        if (column->Flags & ImGuiTableColumnFlags_WidthFixed)
+        {
+            // Apply same widths policy
+            float width_auto = column->WidthAuto;
+            if (table_sizing_policy == ImGuiTableFlags_SizingFixedSame && (column->AutoFitQueue != 0x00 || !column_is_resizable))
+                width_auto = fixed_max_width_auto;
+
+            // Apply automatic width
+            // Latch initial size for fixed columns and update it constantly for auto-resizing column (unless clipped!)
+            if (column->AutoFitQueue != 0x00)
+                column->WidthRequest = width_auto;
+            else if ((column->Flags & ImGuiTableColumnFlags_WidthFixed) && !column_is_resizable && (table->RequestOutputMaskByIndex & ((ImU64)1 << column_n)))
+                column->WidthRequest = width_auto;
+
+            // FIXME-TABLE: Increase minimum size during init frame to avoid biasing auto-fitting widgets
+            // (e.g. TextWrapped) too much. Otherwise what tends to happen is that TextWrapped would output a very
+            // large height (= first frame scrollbar display very off + clipper would skip lots of items).
+            // This is merely making the side-effect less extreme, but doesn't properly fixes it.
+            // FIXME: Move this to ->WidthGiven to avoid temporary lossyless?
+            // FIXME: This break IsPreserveWidthAuto from not flickering if the stored WidthAuto was smaller.
+            if (column->AutoFitQueue > 0x01 && table->IsInitializing && !column->IsPreserveWidthAuto)
+                column->WidthRequest = ImMax(column->WidthRequest, table->MinColumnWidth * 4.0f); // FIXME-TABLE: Another constant/scale?
+            sum_width_requests += column->WidthRequest;
+        }
+        else
+        {
+            // Initialize stretch weight
+            if (column->AutoFitQueue != 0x00 || column->StretchWeight < 0.0f || !column_is_resizable)
+            {
+                if (column->InitStretchWeightOrWidth > 0.0f)
+                    column->StretchWeight = column->InitStretchWeightOrWidth;
+                else if (table_sizing_policy == ImGuiTableFlags_SizingStretchProp)
+                    column->StretchWeight = (column->WidthAuto / stretch_sum_width_auto) * count_stretch;
+                else
+                    column->StretchWeight = 1.0f;
+            }
+
+            stretch_sum_weights += column->StretchWeight;
+            if (table->LeftMostStretchedColumn == -1 || table->Columns[table->LeftMostStretchedColumn].DisplayOrder > column->DisplayOrder)
+                table->LeftMostStretchedColumn = (ImGuiTableColumnIdx)column_n;
+            if (table->RightMostStretchedColumn == -1 || table->Columns[table->RightMostStretchedColumn].DisplayOrder < column->DisplayOrder)
+                table->RightMostStretchedColumn = (ImGuiTableColumnIdx)column_n;
+        }
+        column->IsPreserveWidthAuto = false;
+        sum_width_requests += table->CellPaddingX * 2.0f;
+    }
+    table->ColumnsEnabledFixedCount = (ImGuiTableColumnIdx)count_fixed;
+    table->ColumnsStretchSumWeights = stretch_sum_weights;
+
+    // [Part 4] Apply final widths based on requested widths
+    const ImRect work_rect = table->WorkRect;
+    const float width_spacings = (table->OuterPaddingX * 2.0f) + (table->CellSpacingX1 + table->CellSpacingX2) * (table->ColumnsEnabledCount - 1);
+    const float width_avail = ((table->Flags & ImGuiTableFlags_ScrollX) && table->InnerWidth == 0.0f) ? table->InnerClipRect.GetWidth() : work_rect.GetWidth();
+    const float width_avail_for_stretched_columns = width_avail - width_spacings - sum_width_requests;
+    float width_remaining_for_stretched_columns = width_avail_for_stretched_columns;
+    table->ColumnsGivenWidth = width_spacings + (table->CellPaddingX * 2.0f) * table->ColumnsEnabledCount;
+    for (int column_n = 0; column_n < table->ColumnsCount; column_n++)
+    {
+        if (!(table->EnabledMaskByIndex & ((ImU64)1 << column_n)))
+            continue;
+        ImGuiTableColumn* column = &table->Columns[column_n];
+
+        // Allocate width for stretched/weighted columns (StretchWeight gets converted into WidthRequest)
+        if (column->Flags & ImGuiTableColumnFlags_WidthStretch)
+        {
+            float weight_ratio = column->StretchWeight / stretch_sum_weights;
+            column->WidthRequest = IM_FLOOR(ImMax(width_avail_for_stretched_columns * weight_ratio, table->MinColumnWidth) + 0.01f);
+            width_remaining_for_stretched_columns -= column->WidthRequest;
+        }
+
+        // [Resize Rule 1] The right-most Visible column is not resizable if there is at least one Stretch column
+        // See additional comments in TableSetColumnWidth().
+        if (column->NextEnabledColumn == -1 && table->LeftMostStretchedColumn != -1)
+            column->Flags |= ImGuiTableColumnFlags_NoDirectResize_;
+
+        // Assign final width, record width in case we will need to shrink
+        column->WidthGiven = ImFloor(ImMax(column->WidthRequest, table->MinColumnWidth));
+        table->ColumnsGivenWidth += column->WidthGiven;
+    }
+
+    // [Part 5] Redistribute stretch remainder width due to rounding (remainder width is < 1.0f * number of Stretch column).
+    // Using right-to-left distribution (more likely to match resizing cursor).
+    if (width_remaining_for_stretched_columns >= 1.0f && !(table->Flags & ImGuiTableFlags_PreciseWidths))
+        for (int order_n = table->ColumnsCount - 1; stretch_sum_weights > 0.0f && width_remaining_for_stretched_columns >= 1.0f && order_n >= 0; order_n--)
+        {
+            if (!(table->EnabledMaskByDisplayOrder & ((ImU64)1 << order_n)))
+                continue;
+            ImGuiTableColumn* column = &table->Columns[table->DisplayOrderToIndex[order_n]];
+            if (!(column->Flags & ImGuiTableColumnFlags_WidthStretch))
+                continue;
+            column->WidthRequest += 1.0f;
+            column->WidthGiven += 1.0f;
+            width_remaining_for_stretched_columns -= 1.0f;
+        }
+
+    ImGuiTableInstanceData* table_instance = TableGetInstanceData(table, table->InstanceCurrent);
+    table->HoveredColumnBody = -1;
+    table->HoveredColumnBorder = -1;
+    const ImRect mouse_hit_rect(table->OuterRect.Min.x, table->OuterRect.Min.y, table->OuterRect.Max.x, ImMax(table->OuterRect.Max.y, table->OuterRect.Min.y + table_instance->LastOuterHeight));
+    const bool is_hovering_table = ItemHoverable(mouse_hit_rect, 0);
+
+    // [Part 6] Setup final position, offset, skip/clip states and clipping rectangles, detect hovered column
+    // Process columns in their visible orders as we are comparing the visible order and adjusting host_clip_rect while looping.
+    int visible_n = 0;
+    bool offset_x_frozen = (table->FreezeColumnsCount > 0);
+    float offset_x = ((table->FreezeColumnsCount > 0) ? table->OuterRect.Min.x : work_rect.Min.x) + table->OuterPaddingX - table->CellSpacingX1;
+    ImRect host_clip_rect = table->InnerClipRect;
+    //host_clip_rect.Max.x += table->CellPaddingX + table->CellSpacingX2;
+    table->VisibleMaskByIndex = 0x00;
+    table->RequestOutputMaskByIndex = 0x00;
+    for (int order_n = 0; order_n < table->ColumnsCount; order_n++)
+    {
+        const int column_n = table->DisplayOrderToIndex[order_n];
+        ImGuiTableColumn* column = &table->Columns[column_n];
+
+        column->NavLayerCurrent = (ImS8)((table->FreezeRowsCount > 0 || column_n < table->FreezeColumnsCount) ? ImGuiNavLayer_Menu : ImGuiNavLayer_Main);
+
+        if (offset_x_frozen && table->FreezeColumnsCount == visible_n)
+        {
+            offset_x += work_rect.Min.x - table->OuterRect.Min.x;
+            offset_x_frozen = false;
+        }
+
+        // Clear status flags
+        column->Flags &= ~ImGuiTableColumnFlags_StatusMask_;
+
+        if ((table->EnabledMaskByDisplayOrder & ((ImU64)1 << order_n)) == 0)
+        {
+            // Hidden column: clear a few fields and we are done with it for the remainder of the function.
+            // We set a zero-width clip rect but set Min.y/Max.y properly to not interfere with the clipper.
+            column->MinX = column->MaxX = column->WorkMinX = column->ClipRect.Min.x = column->ClipRect.Max.x = offset_x;
+            column->WidthGiven = 0.0f;
+            column->ClipRect.Min.y = work_rect.Min.y;
+            column->ClipRect.Max.y = FLT_MAX;
+            column->ClipRect.ClipWithFull(host_clip_rect);
+            column->IsVisibleX = column->IsVisibleY = column->IsRequestOutput = false;
+            column->IsSkipItems = true;
+            column->ItemWidth = 1.0f;
+            continue;
+        }
+
+        // Detect hovered column
+        if (is_hovering_table && g.IO.MousePos.x >= column->ClipRect.Min.x && g.IO.MousePos.x < column->ClipRect.Max.x)
+            table->HoveredColumnBody = (ImGuiTableColumnIdx)column_n;
+
+        // Lock start position
+        column->MinX = offset_x;
+
+        // Lock width based on start position and minimum/maximum width for this position
+        float max_width = TableGetMaxColumnWidth(table, column_n);
+        column->WidthGiven = ImMin(column->WidthGiven, max_width);
+        column->WidthGiven = ImMax(column->WidthGiven, ImMin(column->WidthRequest, table->MinColumnWidth));
+        column->MaxX = offset_x + column->WidthGiven + table->CellSpacingX1 + table->CellSpacingX2 + table->CellPaddingX * 2.0f;
+
+        // Lock other positions
+        // - ClipRect.Min.x: Because merging draw commands doesn't compare min boundaries, we make ClipRect.Min.x match left bounds to be consistent regardless of merging.
+        // - ClipRect.Max.x: using WorkMaxX instead of MaxX (aka including padding) makes things more consistent when resizing down, tho slightly detrimental to visibility in very-small column.
+        // - ClipRect.Max.x: using MaxX makes it easier for header to receive hover highlight with no discontinuity and display sorting arrow.
+        // - FIXME-TABLE: We want equal width columns to have equal (ClipRect.Max.x - WorkMinX) width, which means ClipRect.max.x cannot stray off host_clip_rect.Max.x else right-most column may appear shorter.
+        column->WorkMinX = column->MinX + table->CellPaddingX + table->CellSpacingX1;
+        column->WorkMaxX = column->MaxX - table->CellPaddingX - table->CellSpacingX2; // Expected max
+        column->ItemWidth = ImFloor(column->WidthGiven * 0.65f);
+        column->ClipRect.Min.x = column->MinX;
+        column->ClipRect.Min.y = work_rect.Min.y;
+        column->ClipRect.Max.x = column->MaxX; //column->WorkMaxX;
+        column->ClipRect.Max.y = FLT_MAX;
+        column->ClipRect.ClipWithFull(host_clip_rect);
+
+        // Mark column as Clipped (not in sight)
+        // Note that scrolling tables (where inner_window != outer_window) handle Y clipped earlier in BeginTable() so IsVisibleY really only applies to non-scrolling tables.
+        // FIXME-TABLE: Because InnerClipRect.Max.y is conservatively ==outer_window->ClipRect.Max.y, we never can mark columns _Above_ the scroll line as not IsVisibleY.
+        // Taking advantage of LastOuterHeight would yield good results there...
+        // FIXME-TABLE: Y clipping is disabled because it effectively means not submitting will reduce contents width which is fed to outer_window->DC.CursorMaxPos.x,
+        // and this may be used (e.g. typically by outer_window using AlwaysAutoResize or outer_window's horizontal scrollbar, but could be something else).
+        // Possible solution to preserve last known content width for clipped column. Test 'table_reported_size' fails when enabling Y clipping and window is resized small.
+        column->IsVisibleX = (column->ClipRect.Max.x > column->ClipRect.Min.x);
+        column->IsVisibleY = true; // (column->ClipRect.Max.y > column->ClipRect.Min.y);
+        const bool is_visible = column->IsVisibleX; //&& column->IsVisibleY;
+        if (is_visible)
+            table->VisibleMaskByIndex |= ((ImU64)1 << column_n);
+
+        // Mark column as requesting output from user. Note that fixed + non-resizable sets are auto-fitting at all times and therefore always request output.
+        column->IsRequestOutput = is_visible || column->AutoFitQueue != 0 || column->CannotSkipItemsQueue != 0;
+        if (column->IsRequestOutput)
+            table->RequestOutputMaskByIndex |= ((ImU64)1 << column_n);
+
+        // Mark column as SkipItems (ignoring all items/layout)
+        column->IsSkipItems = !column->IsEnabled || table->HostSkipItems;
+        if (column->IsSkipItems)
+            IM_ASSERT(!is_visible);
+
+        // Update status flags
+        column->Flags |= ImGuiTableColumnFlags_IsEnabled;
+        if (is_visible)
+            column->Flags |= ImGuiTableColumnFlags_IsVisible;
+        if (column->SortOrder != -1)
+            column->Flags |= ImGuiTableColumnFlags_IsSorted;
+        if (table->HoveredColumnBody == column_n)
+            column->Flags |= ImGuiTableColumnFlags_IsHovered;
+
+        // Alignment
+        // FIXME-TABLE: This align based on the whole column width, not per-cell, and therefore isn't useful in
+        // many cases (to be able to honor this we might be able to store a log of cells width, per row, for
+        // visible rows, but nav/programmatic scroll would have visible artifacts.)
+        //if (column->Flags & ImGuiTableColumnFlags_AlignRight)
+        //    column->WorkMinX = ImMax(column->WorkMinX, column->MaxX - column->ContentWidthRowsUnfrozen);
+        //else if (column->Flags & ImGuiTableColumnFlags_AlignCenter)
+        //    column->WorkMinX = ImLerp(column->WorkMinX, ImMax(column->StartX, column->MaxX - column->ContentWidthRowsUnfrozen), 0.5f);
+
+        // Reset content width variables
+        column->ContentMaxXFrozen = column->ContentMaxXUnfrozen = column->WorkMinX;
+        column->ContentMaxXHeadersUsed = column->ContentMaxXHeadersIdeal = column->WorkMinX;
+
+        // Don't decrement auto-fit counters until container window got a chance to submit its items
+        if (table->HostSkipItems == false)
+        {
+            column->AutoFitQueue >>= 1;
+            column->CannotSkipItemsQueue >>= 1;
+        }
+
+        if (visible_n < table->FreezeColumnsCount)
+            host_clip_rect.Min.x = ImClamp(column->MaxX + TABLE_BORDER_SIZE, host_clip_rect.Min.x, host_clip_rect.Max.x);
+
+        offset_x += column->WidthGiven + table->CellSpacingX1 + table->CellSpacingX2 + table->CellPaddingX * 2.0f;
+        visible_n++;
+    }
+
+    // [Part 7] Detect/store when we are hovering the unused space after the right-most column (so e.g. context menus can react on it)
+    // Clear Resizable flag if none of our column are actually resizable (either via an explicit _NoResize flag, either
+    // because of using _WidthAuto/_WidthStretch). This will hide the resizing option from the context menu.
+    const float unused_x1 = ImMax(table->WorkRect.Min.x, table->Columns[table->RightMostEnabledColumn].ClipRect.Max.x);
+    if (is_hovering_table && table->HoveredColumnBody == -1)
+    {
+        if (g.IO.MousePos.x >= unused_x1)
+            table->HoveredColumnBody = (ImGuiTableColumnIdx)table->ColumnsCount;
+    }
+    if (has_resizable == false && (table->Flags & ImGuiTableFlags_Resizable))
+        table->Flags &= ~ImGuiTableFlags_Resizable;
+
+    // [Part 8] Lock actual OuterRect/WorkRect right-most position.
+    // This is done late to handle the case of fixed-columns tables not claiming more widths that they need.
+    // Because of this we are careful with uses of WorkRect and InnerClipRect before this point.
+    if (table->RightMostStretchedColumn != -1)
+        table->Flags &= ~ImGuiTableFlags_NoHostExtendX;
+    if (table->Flags & ImGuiTableFlags_NoHostExtendX)
+    {
+        table->OuterRect.Max.x = table->WorkRect.Max.x = unused_x1;
+        table->InnerClipRect.Max.x = ImMin(table->InnerClipRect.Max.x, unused_x1);
+    }
+    table->InnerWindow->ParentWorkRect = table->WorkRect;
+    table->BorderX1 = table->InnerClipRect.Min.x;// +((table->Flags & ImGuiTableFlags_BordersOuter) ? 0.0f : -1.0f);
+    table->BorderX2 = table->InnerClipRect.Max.x;// +((table->Flags & ImGuiTableFlags_BordersOuter) ? 0.0f : +1.0f);
+
+    // [Part 9] Allocate draw channels and setup background cliprect
+    TableSetupDrawChannels(table);
+
+    // [Part 10] Hit testing on borders
+    if (table->Flags & ImGuiTableFlags_Resizable)
+        TableUpdateBorders(table);
+    table_instance->LastFirstRowHeight = 0.0f;
+    table->IsLayoutLocked = true;
+    table->IsUsingHeaders = false;
+
+    // [Part 11] Context menu
+    if (table->IsContextPopupOpen && table->InstanceCurrent == table->InstanceInteracted)
+    {
+        const ImGuiID context_menu_id = ImHashStr("##ContextMenu", 0, table->ID);
+        if (BeginPopupEx(context_menu_id, ImGuiWindowFlags_AlwaysAutoResize | ImGuiWindowFlags_NoTitleBar | ImGuiWindowFlags_NoSavedSettings))
+        {
+            TableDrawContextMenu(table);
+            EndPopup();
+        }
+        else
+        {
+            table->IsContextPopupOpen = false;
+        }
+    }
+
+    // [Part 13] Sanitize and build sort specs before we have a change to use them for display.
+    // This path will only be exercised when sort specs are modified before header rows (e.g. init or visibility change)
+    if (table->IsSortSpecsDirty && (table->Flags & ImGuiTableFlags_Sortable))
+        TableSortSpecsBuild(table);
+
+    // Initial state
+    ImGuiWindow* inner_window = table->InnerWindow;
+    if (table->Flags & ImGuiTableFlags_NoClip)
+        table->DrawSplitter->SetCurrentChannel(inner_window->DrawList, TABLE_DRAW_CHANNEL_NOCLIP);
+    else
+        inner_window->DrawList->PushClipRect(inner_window->ClipRect.Min, inner_window->ClipRect.Max, false);
+}
+
+// Process hit-testing on resizing borders. Actual size change will be applied in EndTable()
+// - Set table->HoveredColumnBorder with a short delay/timer to reduce feedback noise
+// - Submit ahead of table contents and header, use ImGuiButtonFlags_AllowItemOverlap to prioritize widgets
+//   overlapping the same area.
+void ImGui::TableUpdateBorders(ImGuiTable* table)
+{
+    ImGuiContext& g = *GImGui;
+    IM_ASSERT(table->Flags & ImGuiTableFlags_Resizable);
+
+    // At this point OuterRect height may be zero or under actual final height, so we rely on temporal coherency and
+    // use the final height from last frame. Because this is only affecting _interaction_ with columns, it is not
+    // really problematic (whereas the actual visual will be displayed in EndTable() and using the current frame height).
+    // Actual columns highlight/render will be performed in EndTable() and not be affected.
+    ImGuiTableInstanceData* table_instance = TableGetInstanceData(table, table->InstanceCurrent);
+    const float hit_half_width = TABLE_RESIZE_SEPARATOR_HALF_THICKNESS;
+    const float hit_y1 = table->OuterRect.Min.y;
+    const float hit_y2_body = ImMax(table->OuterRect.Max.y, hit_y1 + table_instance->LastOuterHeight);
+    const float hit_y2_head = hit_y1 + table_instance->LastFirstRowHeight;
+
+    for (int order_n = 0; order_n < table->ColumnsCount; order_n++)
+    {
+        if (!(table->EnabledMaskByDisplayOrder & ((ImU64)1 << order_n)))
+            continue;
+
+        const int column_n = table->DisplayOrderToIndex[order_n];
+        ImGuiTableColumn* column = &table->Columns[column_n];
+        if (column->Flags & (ImGuiTableColumnFlags_NoResize | ImGuiTableColumnFlags_NoDirectResize_))
+            continue;
+
+        // ImGuiTableFlags_NoBordersInBodyUntilResize will be honored in TableDrawBorders()
+        const float border_y2_hit = (table->Flags & ImGuiTableFlags_NoBordersInBody) ? hit_y2_head : hit_y2_body;
+        if ((table->Flags & ImGuiTableFlags_NoBordersInBody) && table->IsUsingHeaders == false)
+            continue;
+
+        if (!column->IsVisibleX && table->LastResizedColumn != column_n)
+            continue;
+
+        ImGuiID column_id = TableGetColumnResizeID(table, column_n, table->InstanceCurrent);
+        ImRect hit_rect(column->MaxX - hit_half_width, hit_y1, column->MaxX + hit_half_width, border_y2_hit);
+        //GetForegroundDrawList()->AddRect(hit_rect.Min, hit_rect.Max, IM_COL32(255, 0, 0, 100));
+        KeepAliveID(column_id);
+
+        bool hovered = false, held = false;
+        bool pressed = ButtonBehavior(hit_rect, column_id, &hovered, &held, ImGuiButtonFlags_FlattenChildren | ImGuiButtonFlags_AllowItemOverlap | ImGuiButtonFlags_PressedOnClick | ImGuiButtonFlags_PressedOnDoubleClick | ImGuiButtonFlags_NoNavFocus);
+        if (pressed && IsMouseDoubleClicked(0))
+        {
+            TableSetColumnWidthAutoSingle(table, column_n);
+            ClearActiveID();
+            held = hovered = false;
+        }
+        if (held)
+        {
+            if (table->LastResizedColumn == -1)
+                table->ResizeLockMinContentsX2 = table->RightMostEnabledColumn != -1 ? table->Columns[table->RightMostEnabledColumn].MaxX : -FLT_MAX;
+            table->ResizedColumn = (ImGuiTableColumnIdx)column_n;
+            table->InstanceInteracted = table->InstanceCurrent;
+        }
+        if ((hovered && g.HoveredIdTimer > TABLE_RESIZE_SEPARATOR_FEEDBACK_TIMER) || held)
+        {
+            table->HoveredColumnBorder = (ImGuiTableColumnIdx)column_n;
+            SetMouseCursor(ImGuiMouseCursor_ResizeEW);
+        }
+    }
+}
+
+void    ImGui::EndTable()
+{
+    ImGuiContext& g = *GImGui;
+    ImGuiTable* table = g.CurrentTable;
+    IM_ASSERT(table != NULL && "Only call EndTable() if BeginTable() returns true!");
+
+    // This assert would be very useful to catch a common error... unfortunately it would probably trigger in some
+    // cases, and for consistency user may sometimes output empty tables (and still benefit from e.g. outer border)
+    //IM_ASSERT(table->IsLayoutLocked && "Table unused: never called TableNextRow(), is that the intent?");
+
+    // If the user never got to call TableNextRow() or TableNextColumn(), we call layout ourselves to ensure all our
+    // code paths are consistent (instead of just hoping that TableBegin/TableEnd will work), get borders drawn, etc.
+    if (!table->IsLayoutLocked)
+        TableUpdateLayout(table);
+
+    const ImGuiTableFlags flags = table->Flags;
+    ImGuiWindow* inner_window = table->InnerWindow;
+    ImGuiWindow* outer_window = table->OuterWindow;
+    ImGuiTableTempData* temp_data = table->TempData;
+    IM_ASSERT(inner_window == g.CurrentWindow);
+    IM_ASSERT(outer_window == inner_window || outer_window == inner_window->ParentWindow);
+
+    if (table->IsInsideRow)
+        TableEndRow(table);
+
+    // Context menu in columns body
+    if (flags & ImGuiTableFlags_ContextMenuInBody)
+        if (table->HoveredColumnBody != -1 && !IsAnyItemHovered() && IsMouseReleased(ImGuiMouseButton_Right))
+            TableOpenContextMenu((int)table->HoveredColumnBody);
+
+    // Finalize table height
+    ImGuiTableInstanceData* table_instance = TableGetInstanceData(table, table->InstanceCurrent);
+    inner_window->DC.PrevLineSize = temp_data->HostBackupPrevLineSize;
+    inner_window->DC.CurrLineSize = temp_data->HostBackupCurrLineSize;
+    inner_window->DC.CursorMaxPos = temp_data->HostBackupCursorMaxPos;
+    const float inner_content_max_y = table->RowPosY2;
+    IM_ASSERT(table->RowPosY2 == inner_window->DC.CursorPos.y);
+    if (inner_window != outer_window)
+        inner_window->DC.CursorMaxPos.y = inner_content_max_y;
+    else if (!(flags & ImGuiTableFlags_NoHostExtendY))
+        table->OuterRect.Max.y = table->InnerRect.Max.y = ImMax(table->OuterRect.Max.y, inner_content_max_y); // Patch OuterRect/InnerRect height
+    table->WorkRect.Max.y = ImMax(table->WorkRect.Max.y, table->OuterRect.Max.y);
+    table_instance->LastOuterHeight = table->OuterRect.GetHeight();
+
+    // Setup inner scrolling range
+    // FIXME: This ideally should be done earlier, in BeginTable() SetNextWindowContentSize call, just like writing to inner_window->DC.CursorMaxPos.y,
+    // but since the later is likely to be impossible to do we'd rather update both axises together.
+    if (table->Flags & ImGuiTableFlags_ScrollX)
+    {
+        const float outer_padding_for_border = (table->Flags & ImGuiTableFlags_BordersOuterV) ? TABLE_BORDER_SIZE : 0.0f;
+        float max_pos_x = table->InnerWindow->DC.CursorMaxPos.x;
+        if (table->RightMostEnabledColumn != -1)
+            max_pos_x = ImMax(max_pos_x, table->Columns[table->RightMostEnabledColumn].WorkMaxX + table->CellPaddingX + table->OuterPaddingX - outer_padding_for_border);
+        if (table->ResizedColumn != -1)
+            max_pos_x = ImMax(max_pos_x, table->ResizeLockMinContentsX2);
+        table->InnerWindow->DC.CursorMaxPos.x = max_pos_x;
+    }
+
+    // Pop clipping rect
+    if (!(flags & ImGuiTableFlags_NoClip))
+        inner_window->DrawList->PopClipRect();
+    inner_window->ClipRect = inner_window->DrawList->_ClipRectStack.back();
+
+    // Draw borders
+    if ((flags & ImGuiTableFlags_Borders) != 0)
+        TableDrawBorders(table);
+
+#if 0
+    // Strip out dummy channel draw calls
+    // We have no way to prevent user submitting direct ImDrawList calls into a hidden column (but ImGui:: calls will be clipped out)
+    // Pros: remove draw calls which will have no effect. since they'll have zero-size cliprect they may be early out anyway.
+    // Cons: making it harder for users watching metrics/debugger to spot the wasted vertices.
+    if (table->DummyDrawChannel != (ImGuiTableColumnIdx)-1)
+    {
+        ImDrawChannel* dummy_channel = &table->DrawSplitter._Channels[table->DummyDrawChannel];
+        dummy_channel->_CmdBuffer.resize(0);
+        dummy_channel->_IdxBuffer.resize(0);
+    }
+#endif
+
+    // Flatten channels and merge draw calls
+    ImDrawListSplitter* splitter = table->DrawSplitter;
+    splitter->SetCurrentChannel(inner_window->DrawList, 0);
+    if ((table->Flags & ImGuiTableFlags_NoClip) == 0)
+        TableMergeDrawChannels(table);
+    splitter->Merge(inner_window->DrawList);
+
+    // Update ColumnsAutoFitWidth to get us ahead for host using our size to auto-resize without waiting for next BeginTable()
+    float auto_fit_width_for_fixed = 0.0f;
+    float auto_fit_width_for_stretched = 0.0f;
+    float auto_fit_width_for_stretched_min = 0.0f;
+    for (int column_n = 0; column_n < table->ColumnsCount; column_n++)
+        if (table->EnabledMaskByIndex & ((ImU64)1 << column_n))
+        {
+            ImGuiTableColumn* column = &table->Columns[column_n];
+            float column_width_request = ((column->Flags & ImGuiTableColumnFlags_WidthFixed) && !(column->Flags & ImGuiTableColumnFlags_NoResize)) ? column->WidthRequest : TableGetColumnWidthAuto(table, column);
+            if (column->Flags & ImGuiTableColumnFlags_WidthFixed)
+                auto_fit_width_for_fixed += column_width_request;
+            else
+                auto_fit_width_for_stretched += column_width_request;
+            if ((column->Flags & ImGuiTableColumnFlags_WidthStretch) && (column->Flags & ImGuiTableColumnFlags_NoResize) != 0)
+                auto_fit_width_for_stretched_min = ImMax(auto_fit_width_for_stretched_min, column_width_request / (column->StretchWeight / table->ColumnsStretchSumWeights));
+        }
+    const float width_spacings = (table->OuterPaddingX * 2.0f) + (table->CellSpacingX1 + table->CellSpacingX2) * (table->ColumnsEnabledCount - 1);
+    table->ColumnsAutoFitWidth = width_spacings + (table->CellPaddingX * 2.0f) * table->ColumnsEnabledCount + auto_fit_width_for_fixed + ImMax(auto_fit_width_for_stretched, auto_fit_width_for_stretched_min);
+
+    // Update scroll
+    if ((table->Flags & ImGuiTableFlags_ScrollX) == 0 && inner_window != outer_window)
+    {
+        inner_window->Scroll.x = 0.0f;
+    }
+    else if (table->LastResizedColumn != -1 && table->ResizedColumn == -1 && inner_window->ScrollbarX && table->InstanceInteracted == table->InstanceCurrent)
+    {
+        // When releasing a column being resized, scroll to keep the resulting column in sight
+        const float neighbor_width_to_keep_visible = table->MinColumnWidth + table->CellPaddingX * 2.0f;
+        ImGuiTableColumn* column = &table->Columns[table->LastResizedColumn];
+        if (column->MaxX < table->InnerClipRect.Min.x)
+            SetScrollFromPosX(inner_window, column->MaxX - inner_window->Pos.x - neighbor_width_to_keep_visible, 1.0f);
+        else if (column->MaxX > table->InnerClipRect.Max.x)
+            SetScrollFromPosX(inner_window, column->MaxX - inner_window->Pos.x + neighbor_width_to_keep_visible, 1.0f);
+    }
+
+    // Apply resizing/dragging at the end of the frame
+    if (table->ResizedColumn != -1 && table->InstanceCurrent == table->InstanceInteracted)
+    {
+        ImGuiTableColumn* column = &table->Columns[table->ResizedColumn];
+        const float new_x2 = (g.IO.MousePos.x - g.ActiveIdClickOffset.x + TABLE_RESIZE_SEPARATOR_HALF_THICKNESS);
+        const float new_width = ImFloor(new_x2 - column->MinX - table->CellSpacingX1 - table->CellPaddingX * 2.0f);
+        table->ResizedColumnNextWidth = new_width;
+    }
+
+    // Pop from id stack
+    IM_ASSERT_USER_ERROR(inner_window->IDStack.back() == table->ID + table->InstanceCurrent, "Mismatching PushID/PopID!");
+    IM_ASSERT_USER_ERROR(outer_window->DC.ItemWidthStack.Size >= temp_data->HostBackupItemWidthStackSize, "Too many PopItemWidth!");
+    PopID();
+
+    // Restore window data that we modified
+    const ImVec2 backup_outer_max_pos = outer_window->DC.CursorMaxPos;
+    inner_window->WorkRect = temp_data->HostBackupWorkRect;
+    inner_window->ParentWorkRect = temp_data->HostBackupParentWorkRect;
+    inner_window->SkipItems = table->HostSkipItems;
+    outer_window->DC.CursorPos = table->OuterRect.Min;
+    outer_window->DC.ItemWidth = temp_data->HostBackupItemWidth;
+    outer_window->DC.ItemWidthStack.Size = temp_data->HostBackupItemWidthStackSize;
+    outer_window->DC.ColumnsOffset = temp_data->HostBackupColumnsOffset;
+
+    // Layout in outer window
+    // (FIXME: To allow auto-fit and allow desirable effect of SameLine() we dissociate 'used' vs 'ideal' size by overriding
+    // CursorPosPrevLine and CursorMaxPos manually. That should be a more general layout feature, see same problem e.g. #3414)
+    if (inner_window != outer_window)
+    {
+        EndChild();
+    }
+    else
+    {
+        ItemSize(table->OuterRect.GetSize());
+        ItemAdd(table->OuterRect, 0);
+    }
+
+    // Override declared contents width/height to enable auto-resize while not needlessly adding a scrollbar
+    if (table->Flags & ImGuiTableFlags_NoHostExtendX)
+    {
+        // FIXME-TABLE: Could we remove this section?
+        // ColumnsAutoFitWidth may be one frame ahead here since for Fixed+NoResize is calculated from latest contents
+        IM_ASSERT((table->Flags & ImGuiTableFlags_ScrollX) == 0);
+        outer_window->DC.CursorMaxPos.x = ImMax(backup_outer_max_pos.x, table->OuterRect.Min.x + table->ColumnsAutoFitWidth);
+    }
+    else if (temp_data->UserOuterSize.x <= 0.0f)
+    {
+        const float decoration_size = (table->Flags & ImGuiTableFlags_ScrollX) ? inner_window->ScrollbarSizes.x : 0.0f;
+        outer_window->DC.IdealMaxPos.x = ImMax(outer_window->DC.IdealMaxPos.x, table->OuterRect.Min.x + table->ColumnsAutoFitWidth + decoration_size - temp_data->UserOuterSize.x);
+        outer_window->DC.CursorMaxPos.x = ImMax(backup_outer_max_pos.x, ImMin(table->OuterRect.Max.x, table->OuterRect.Min.x + table->ColumnsAutoFitWidth));
+    }
+    else
+    {
+        outer_window->DC.CursorMaxPos.x = ImMax(backup_outer_max_pos.x, table->OuterRect.Max.x);
+    }
+    if (temp_data->UserOuterSize.y <= 0.0f)
+    {
+        const float decoration_size = (table->Flags & ImGuiTableFlags_ScrollY) ? inner_window->ScrollbarSizes.y : 0.0f;
+        outer_window->DC.IdealMaxPos.y = ImMax(outer_window->DC.IdealMaxPos.y, inner_content_max_y + decoration_size - temp_data->UserOuterSize.y);
+        outer_window->DC.CursorMaxPos.y = ImMax(backup_outer_max_pos.y, ImMin(table->OuterRect.Max.y, inner_content_max_y));
+    }
+    else
+    {
+        // OuterRect.Max.y may already have been pushed downward from the initial value (unless ImGuiTableFlags_NoHostExtendY is set)
+        outer_window->DC.CursorMaxPos.y = ImMax(backup_outer_max_pos.y, table->OuterRect.Max.y);
+    }
+
+    // Save settings
+    if (table->IsSettingsDirty)
+        TableSaveSettings(table);
+    table->IsInitializing = false;
+
+    // Clear or restore current table, if any
+    IM_ASSERT(g.CurrentWindow == outer_window && g.CurrentTable == table);
+    IM_ASSERT(g.TablesTempDataStacked > 0);
+    temp_data = (--g.TablesTempDataStacked > 0) ? &g.TablesTempData[g.TablesTempDataStacked - 1] : NULL;
+    g.CurrentTable = temp_data ? g.Tables.GetByIndex(temp_data->TableIndex) : NULL;
+    if (g.CurrentTable)
+    {
+        g.CurrentTable->TempData = temp_data;
+        g.CurrentTable->DrawSplitter = &temp_data->DrawSplitter;
+    }
+    outer_window->DC.CurrentTableIdx = g.CurrentTable ? g.Tables.GetIndex(g.CurrentTable) : -1;
+}
+
+// See "COLUMN SIZING POLICIES" comments at the top of this file
+// If (init_width_or_weight <= 0.0f) it is ignored
+void ImGui::TableSetupColumn(const char* label, ImGuiTableColumnFlags flags, float init_width_or_weight, ImGuiID user_id)
+{
+    ImGuiContext& g = *GImGui;
+    ImGuiTable* table = g.CurrentTable;
+    IM_ASSERT(table != NULL && "Need to call TableSetupColumn() after BeginTable()!");
+    IM_ASSERT(table->IsLayoutLocked == false && "Need to call call TableSetupColumn() before first row!");
+    IM_ASSERT((flags & ImGuiTableColumnFlags_StatusMask_) == 0 && "Illegal to pass StatusMask values to TableSetupColumn()");
+    if (table->DeclColumnsCount >= table->ColumnsCount)
+    {
+        IM_ASSERT_USER_ERROR(table->DeclColumnsCount < table->ColumnsCount, "Called TableSetupColumn() too many times!");
+        return;
+    }
+
+    ImGuiTableColumn* column = &table->Columns[table->DeclColumnsCount];
+    table->DeclColumnsCount++;
+
+    // Assert when passing a width or weight if policy is entirely left to default, to avoid storing width into weight and vice-versa.
+    // Give a grace to users of ImGuiTableFlags_ScrollX.
+    if (table->IsDefaultSizingPolicy && (flags & ImGuiTableColumnFlags_WidthMask_) == 0 && (flags & ImGuiTableFlags_ScrollX) == 0)
+        IM_ASSERT(init_width_or_weight <= 0.0f && "Can only specify width/weight if sizing policy is set explicitly in either Table or Column.");
+
+    // When passing a width automatically enforce WidthFixed policy
+    // (whereas TableSetupColumnFlags would default to WidthAuto if table is not Resizable)
+    if ((flags & ImGuiTableColumnFlags_WidthMask_) == 0 && init_width_or_weight > 0.0f)
+        if ((table->Flags & ImGuiTableFlags_SizingMask_) == ImGuiTableFlags_SizingFixedFit || (table->Flags & ImGuiTableFlags_SizingMask_) == ImGuiTableFlags_SizingFixedSame)
+            flags |= ImGuiTableColumnFlags_WidthFixed;
+
+    TableSetupColumnFlags(table, column, flags);
+    column->UserID = user_id;
+    flags = column->Flags;
+
+    // Initialize defaults
+    column->InitStretchWeightOrWidth = init_width_or_weight;
+    if (table->IsInitializing)
+    {
+        // Init width or weight
+        if (column->WidthRequest < 0.0f && column->StretchWeight < 0.0f)
+        {
+            if ((flags & ImGuiTableColumnFlags_WidthFixed) && init_width_or_weight > 0.0f)
+                column->WidthRequest = init_width_or_weight;
+            if (flags & ImGuiTableColumnFlags_WidthStretch)
+                column->StretchWeight = (init_width_or_weight > 0.0f) ? init_width_or_weight : -1.0f;
+
+            // Disable auto-fit if an explicit width/weight has been specified
+            if (init_width_or_weight > 0.0f)
+                column->AutoFitQueue = 0x00;
+        }
+
+        // Init default visibility/sort state
+        if ((flags & ImGuiTableColumnFlags_DefaultHide) && (table->SettingsLoadedFlags & ImGuiTableFlags_Hideable) == 0)
+            column->IsUserEnabled = column->IsUserEnabledNextFrame = false;
+        if (flags & ImGuiTableColumnFlags_DefaultSort && (table->SettingsLoadedFlags & ImGuiTableFlags_Sortable) == 0)
+        {
+            column->SortOrder = 0; // Multiple columns using _DefaultSort will be reassigned unique SortOrder values when building the sort specs.
+            column->SortDirection = (column->Flags & ImGuiTableColumnFlags_PreferSortDescending) ? (ImS8)ImGuiSortDirection_Descending : (ImU8)(ImGuiSortDirection_Ascending);
+        }
+    }
+
+    // Store name (append with zero-terminator in contiguous buffer)
+    column->NameOffset = -1;
+    if (label != NULL && label[0] != 0)
+    {
+        column->NameOffset = (ImS16)table->ColumnsNames.size();
+        table->ColumnsNames.append(label, label + strlen(label) + 1);
+    }
+}
+
+// [Public]
+void ImGui::TableSetupScrollFreeze(int columns, int rows)
+{
+    ImGuiContext& g = *GImGui;
+    ImGuiTable* table = g.CurrentTable;
+    IM_ASSERT(table != NULL && "Need to call TableSetupColumn() after BeginTable()!");
+    IM_ASSERT(table->IsLayoutLocked == false && "Need to call TableSetupColumn() before first row!");
+    IM_ASSERT(columns >= 0 && columns < IMGUI_TABLE_MAX_COLUMNS);
+    IM_ASSERT(rows >= 0 && rows < 128); // Arbitrary limit
+
+    table->FreezeColumnsRequest = (table->Flags & ImGuiTableFlags_ScrollX) ? (ImGuiTableColumnIdx)ImMin(columns, table->ColumnsCount) : 0;
+    table->FreezeColumnsCount = (table->InnerWindow->Scroll.x != 0.0f) ? table->FreezeColumnsRequest : 0;
+    table->FreezeRowsRequest = (table->Flags & ImGuiTableFlags_ScrollY) ? (ImGuiTableColumnIdx)rows : 0;
+    table->FreezeRowsCount = (table->InnerWindow->Scroll.y != 0.0f) ? table->FreezeRowsRequest : 0;
+    table->IsUnfrozenRows = (table->FreezeRowsCount == 0); // Make sure this is set before TableUpdateLayout() so ImGuiListClipper can benefit from it.b
+
+    // Ensure frozen columns are ordered in their section. We still allow multiple frozen columns to be reordered.
+    // FIXME-TABLE: This work for preserving 2143 into 21|43. How about 4321 turning into 21|43? (preserve relative order in each section)
+    for (int column_n = 0; column_n < table->FreezeColumnsRequest; column_n++)
+    {
+        int order_n = table->DisplayOrderToIndex[column_n];
+        if (order_n != column_n && order_n >= table->FreezeColumnsRequest)
+        {
+            ImSwap(table->Columns[table->DisplayOrderToIndex[order_n]].DisplayOrder, table->Columns[table->DisplayOrderToIndex[column_n]].DisplayOrder);
+            ImSwap(table->DisplayOrderToIndex[order_n], table->DisplayOrderToIndex[column_n]);
+        }
+    }
+}
+
+//-----------------------------------------------------------------------------
+// [SECTION] Tables: Simple accessors
+//-----------------------------------------------------------------------------
+// - TableGetColumnCount()
+// - TableGetColumnName()
+// - TableGetColumnName() [Internal]
+// - TableSetColumnEnabled()
+// - TableGetColumnFlags()
+// - TableGetCellBgRect() [Internal]
+// - TableGetColumnResizeID() [Internal]
+// - TableGetHoveredColumn() [Internal]
+// - TableSetBgColor()
+//-----------------------------------------------------------------------------
+
+int ImGui::TableGetColumnCount()
+{
+    ImGuiContext& g = *GImGui;
+    ImGuiTable* table = g.CurrentTable;
+    return table ? table->ColumnsCount : 0;
+}
+
+const char* ImGui::TableGetColumnName(int column_n)
+{
+    ImGuiContext& g = *GImGui;
+    ImGuiTable* table = g.CurrentTable;
+    if (!table)
+        return NULL;
+    if (column_n < 0)
+        column_n = table->CurrentColumn;
+    return TableGetColumnName(table, column_n);
+}
+
+const char* ImGui::TableGetColumnName(const ImGuiTable* table, int column_n)
+{
+    if (table->IsLayoutLocked == false && column_n >= table->DeclColumnsCount)
+        return ""; // NameOffset is invalid at this point
+    const ImGuiTableColumn* column = &table->Columns[column_n];
+    if (column->NameOffset == -1)
+        return "";
+    return &table->ColumnsNames.Buf[column->NameOffset];
+}
+
+// Change user accessible enabled/disabled state of a column (often perceived as "showing/hiding" from users point of view)
+// Note that end-user can use the context menu to change this themselves (right-click in headers, or right-click in columns body with ImGuiTableFlags_ContextMenuInBody)
+// - Require table to have the ImGuiTableFlags_Hideable flag because we are manipulating user accessible state.
+// - Request will be applied during next layout, which happens on the first call to TableNextRow() after BeginTable().
+// - For the getter you can test (TableGetColumnFlags() & ImGuiTableColumnFlags_IsEnabled) != 0.
+// - Alternative: the ImGuiTableColumnFlags_Disabled is an overriding/master disable flag which will also hide the column from context menu.
+void ImGui::TableSetColumnEnabled(int column_n, bool enabled)
+{
+    ImGuiContext& g = *GImGui;
+    ImGuiTable* table = g.CurrentTable;
+    IM_ASSERT(table != NULL);
+    if (!table)
+        return;
+    IM_ASSERT(table->Flags & ImGuiTableFlags_Hideable); // See comments above
+    if (column_n < 0)
+        column_n = table->CurrentColumn;
+    IM_ASSERT(column_n >= 0 && column_n < table->ColumnsCount);
+    ImGuiTableColumn* column = &table->Columns[column_n];
+    column->IsUserEnabledNextFrame = enabled;
+}
+
+// We allow querying for an extra column in order to poll the IsHovered state of the right-most section
+ImGuiTableColumnFlags ImGui::TableGetColumnFlags(int column_n)
+{
+    ImGuiContext& g = *GImGui;
+    ImGuiTable* table = g.CurrentTable;
+    if (!table)
+        return ImGuiTableColumnFlags_None;
+    if (column_n < 0)
+        column_n = table->CurrentColumn;
+    if (column_n == table->ColumnsCount)
+        return (table->HoveredColumnBody == column_n) ? ImGuiTableColumnFlags_IsHovered : ImGuiTableColumnFlags_None;
+    return table->Columns[column_n].Flags;
+}
+
+// Return the cell rectangle based on currently known height.
+// - Important: we generally don't know our row height until the end of the row, so Max.y will be incorrect in many situations.
+//   The only case where this is correct is if we provided a min_row_height to TableNextRow() and don't go below it, or in TableEndRow() when we locked that height.
+// - Important: if ImGuiTableFlags_PadOuterX is set but ImGuiTableFlags_PadInnerX is not set, the outer-most left and right
+//   columns report a small offset so their CellBgRect can extend up to the outer border.
+//   FIXME: But the rendering code in TableEndRow() nullifies that with clamping required for scrolling.
+ImRect ImGui::TableGetCellBgRect(const ImGuiTable* table, int column_n)
+{
+    const ImGuiTableColumn* column = &table->Columns[column_n];
+    float x1 = column->MinX;
+    float x2 = column->MaxX;
+    //if (column->PrevEnabledColumn == -1)
+    //    x1 -= table->OuterPaddingX;
+    //if (column->NextEnabledColumn == -1)
+    //    x2 += table->OuterPaddingX;
+    x1 = ImMax(x1, table->WorkRect.Min.x);
+    x2 = ImMin(x2, table->WorkRect.Max.x);
+    return ImRect(x1, table->RowPosY1, x2, table->RowPosY2);
+}
+
+// Return the resizing ID for the right-side of the given column.
+ImGuiID ImGui::TableGetColumnResizeID(const ImGuiTable* table, int column_n, int instance_no)
+{
+    IM_ASSERT(column_n >= 0 && column_n < table->ColumnsCount);
+    ImGuiID id = table->ID + 1 + (instance_no * table->ColumnsCount) + column_n;
+    return id;
+}
+
+// Return -1 when table is not hovered. return columns_count if the unused space at the right of visible columns is hovered.
+int ImGui::TableGetHoveredColumn()
+{
+    ImGuiContext& g = *GImGui;
+    ImGuiTable* table = g.CurrentTable;
+    if (!table)
+        return -1;
+    return (int)table->HoveredColumnBody;
+}
+
+void ImGui::TableSetBgColor(ImGuiTableBgTarget target, ImU32 color, int column_n)
+{
+    ImGuiContext& g = *GImGui;
+    ImGuiTable* table = g.CurrentTable;
+    IM_ASSERT(target != ImGuiTableBgTarget_None);
+
+    if (color == IM_COL32_DISABLE)
+        color = 0;
+
+    // We cannot draw neither the cell or row background immediately as we don't know the row height at this point in time.
+    switch (target)
+    {
+    case ImGuiTableBgTarget_CellBg:
+    {
+        if (table->RowPosY1 > table->InnerClipRect.Max.y) // Discard
+            return;
+        if (column_n == -1)
+            column_n = table->CurrentColumn;
+        if ((table->VisibleMaskByIndex & ((ImU64)1 << column_n)) == 0)
+            return;
+        if (table->RowCellDataCurrent < 0 || table->RowCellData[table->RowCellDataCurrent].Column != column_n)
+            table->RowCellDataCurrent++;
+        ImGuiTableCellData* cell_data = &table->RowCellData[table->RowCellDataCurrent];
+        cell_data->BgColor = color;
+        cell_data->Column = (ImGuiTableColumnIdx)column_n;
+        break;
+    }
+    case ImGuiTableBgTarget_RowBg0:
+    case ImGuiTableBgTarget_RowBg1:
+    {
+        if (table->RowPosY1 > table->InnerClipRect.Max.y) // Discard
+            return;
+        IM_ASSERT(column_n == -1);
+        int bg_idx = (target == ImGuiTableBgTarget_RowBg1) ? 1 : 0;
+        table->RowBgColor[bg_idx] = color;
+        break;
+    }
+    default:
+        IM_ASSERT(0);
+    }
+}
+
+//-------------------------------------------------------------------------
+// [SECTION] Tables: Row changes
+//-------------------------------------------------------------------------
+// - TableGetRowIndex()
+// - TableNextRow()
+// - TableBeginRow() [Internal]
+// - TableEndRow() [Internal]
+//-------------------------------------------------------------------------
+
+// [Public] Note: for row coloring we use ->RowBgColorCounter which is the same value without counting header rows
+int ImGui::TableGetRowIndex()
+{
+    ImGuiContext& g = *GImGui;
+    ImGuiTable* table = g.CurrentTable;
+    if (!table)
+        return 0;
+    return table->CurrentRow;
+}
+
+// [Public] Starts into the first cell of a new row
+void ImGui::TableNextRow(ImGuiTableRowFlags row_flags, float row_min_height)
+{
+    ImGuiContext& g = *GImGui;
+    ImGuiTable* table = g.CurrentTable;
+
+    if (!table->IsLayoutLocked)
+        TableUpdateLayout(table);
+    if (table->IsInsideRow)
+        TableEndRow(table);
+
+    table->LastRowFlags = table->RowFlags;
+    table->RowFlags = row_flags;
+    table->RowMinHeight = row_min_height;
+    TableBeginRow(table);
+
+    // We honor min_row_height requested by user, but cannot guarantee per-row maximum height,
+    // because that would essentially require a unique clipping rectangle per-cell.
+    table->RowPosY2 += table->CellPaddingY * 2.0f;
+    table->RowPosY2 = ImMax(table->RowPosY2, table->RowPosY1 + row_min_height);
+
+    // Disable output until user calls TableNextColumn()
+    table->InnerWindow->SkipItems = true;
+}
+
+// [Internal] Called by TableNextRow()
+void ImGui::TableBeginRow(ImGuiTable* table)
+{
+    ImGuiWindow* window = table->InnerWindow;
+    IM_ASSERT(!table->IsInsideRow);
+
+    // New row
+    table->CurrentRow++;
+    table->CurrentColumn = -1;
+    table->RowBgColor[0] = table->RowBgColor[1] = IM_COL32_DISABLE;
+    table->RowCellDataCurrent = -1;
+    table->IsInsideRow = true;
+
+    // Begin frozen rows
+    float next_y1 = table->RowPosY2;
+    if (table->CurrentRow == 0 && table->FreezeRowsCount > 0)
+        next_y1 = window->DC.CursorPos.y = table->OuterRect.Min.y;
+
+    table->RowPosY1 = table->RowPosY2 = next_y1;
+    table->RowTextBaseline = 0.0f;
+    table->RowIndentOffsetX = window->DC.Indent.x - table->HostIndentX; // Lock indent
+    window->DC.PrevLineTextBaseOffset = 0.0f;
+    window->DC.CursorMaxPos.y = next_y1;
+
+    // Making the header BG color non-transparent will allow us to overlay it multiple times when handling smooth dragging.
+    if (table->RowFlags & ImGuiTableRowFlags_Headers)
+    {
+        TableSetBgColor(ImGuiTableBgTarget_RowBg0, GetColorU32(ImGuiCol_TableHeaderBg));
+        if (table->CurrentRow == 0)
+            table->IsUsingHeaders = true;
+    }
+}
+
+// [Internal] Called by TableNextRow()
+void ImGui::TableEndRow(ImGuiTable* table)
+{
+    ImGuiContext& g = *GImGui;
+    ImGuiWindow* window = g.CurrentWindow;
+    IM_ASSERT(window == table->InnerWindow);
+    IM_ASSERT(table->IsInsideRow);
+
+    if (table->CurrentColumn != -1)
+        TableEndCell(table);
+
+    // Logging
+    if (g.LogEnabled)
+        LogRenderedText(NULL, "|");
+
+    // Position cursor at the bottom of our row so it can be used for e.g. clipping calculation. However it is
+    // likely that the next call to TableBeginCell() will reposition the cursor to take account of vertical padding.
+    window->DC.CursorPos.y = table->RowPosY2;
+
+    // Row background fill
+    const float bg_y1 = table->RowPosY1;
+    const float bg_y2 = table->RowPosY2;
+    const bool unfreeze_rows_actual = (table->CurrentRow + 1 == table->FreezeRowsCount);
+    const bool unfreeze_rows_request = (table->CurrentRow + 1 == table->FreezeRowsRequest);
+    if (table->CurrentRow == 0)
+        TableGetInstanceData(table, table->InstanceCurrent)->LastFirstRowHeight = bg_y2 - bg_y1;
+
+    const bool is_visible = (bg_y2 >= table->InnerClipRect.Min.y && bg_y1 <= table->InnerClipRect.Max.y);
+    if (is_visible)
+    {
+        // Decide of background color for the row
+        ImU32 bg_col0 = 0;
+        ImU32 bg_col1 = 0;
+        if (table->RowBgColor[0] != IM_COL32_DISABLE)
+            bg_col0 = table->RowBgColor[0];
+        else if (table->Flags & ImGuiTableFlags_RowBg)
+            bg_col0 = GetColorU32((table->RowBgColorCounter & 1) ? ImGuiCol_TableRowBgAlt : ImGuiCol_TableRowBg);
+        if (table->RowBgColor[1] != IM_COL32_DISABLE)
+            bg_col1 = table->RowBgColor[1];
+
+        // Decide of top border color
+        ImU32 border_col = 0;
+        const float border_size = TABLE_BORDER_SIZE;
+        if (table->CurrentRow > 0 || table->InnerWindow == table->OuterWindow)
+            if (table->Flags & ImGuiTableFlags_BordersInnerH)
+                border_col = (table->LastRowFlags & ImGuiTableRowFlags_Headers) ? table->BorderColorStrong : table->BorderColorLight;
+
+        const bool draw_cell_bg_color = table->RowCellDataCurrent >= 0;
+        const bool draw_strong_bottom_border = unfreeze_rows_actual;
+        if ((bg_col0 | bg_col1 | border_col) != 0 || draw_strong_bottom_border || draw_cell_bg_color)
+        {
+            // In theory we could call SetWindowClipRectBeforeSetChannel() but since we know TableEndRow() is
+            // always followed by a change of clipping rectangle we perform the smallest overwrite possible here.
+            if ((table->Flags & ImGuiTableFlags_NoClip) == 0)
+                window->DrawList->_CmdHeader.ClipRect = table->Bg0ClipRectForDrawCmd.ToVec4();
+            table->DrawSplitter->SetCurrentChannel(window->DrawList, TABLE_DRAW_CHANNEL_BG0);
+        }
+
+        // Draw row background
+        // We soft/cpu clip this so all backgrounds and borders can share the same clipping rectangle
+        if (bg_col0 || bg_col1)
+        {
+            ImRect row_rect(table->WorkRect.Min.x, bg_y1, table->WorkRect.Max.x, bg_y2);
+            row_rect.ClipWith(table->BgClipRect);
+            if (bg_col0 != 0 && row_rect.Min.y < row_rect.Max.y)
+                window->DrawList->AddRectFilled(row_rect.Min, row_rect.Max, bg_col0);
+            if (bg_col1 != 0 && row_rect.Min.y < row_rect.Max.y)
+                window->DrawList->AddRectFilled(row_rect.Min, row_rect.Max, bg_col1);
+        }
+
+        // Draw cell background color
+        if (draw_cell_bg_color)
+        {
+            ImGuiTableCellData* cell_data_end = &table->RowCellData[table->RowCellDataCurrent];
+            for (ImGuiTableCellData* cell_data = &table->RowCellData[0]; cell_data <= cell_data_end; cell_data++)
+            {
+                // As we render the BG here we need to clip things (for layout we would not)
+                // FIXME: This cancels the OuterPadding addition done by TableGetCellBgRect(), need to keep it while rendering correctly while scrolling.
+                const ImGuiTableColumn* column = &table->Columns[cell_data->Column];
+                ImRect cell_bg_rect = TableGetCellBgRect(table, cell_data->Column);
+                cell_bg_rect.ClipWith(table->BgClipRect);
+                cell_bg_rect.Min.x = ImMax(cell_bg_rect.Min.x, column->ClipRect.Min.x);     // So that first column after frozen one gets clipped when scrolling
+                cell_bg_rect.Max.x = ImMin(cell_bg_rect.Max.x, column->MaxX);
+                window->DrawList->AddRectFilled(cell_bg_rect.Min, cell_bg_rect.Max, cell_data->BgColor);
+            }
+        }
+
+        // Draw top border
+        if (border_col && bg_y1 >= table->BgClipRect.Min.y && bg_y1 < table->BgClipRect.Max.y)
+            window->DrawList->AddLine(ImVec2(table->BorderX1, bg_y1), ImVec2(table->BorderX2, bg_y1), border_col, border_size);
+
+        // Draw bottom border at the row unfreezing mark (always strong)
+        if (draw_strong_bottom_border && bg_y2 >= table->BgClipRect.Min.y && bg_y2 < table->BgClipRect.Max.y)
+            window->DrawList->AddLine(ImVec2(table->BorderX1, bg_y2), ImVec2(table->BorderX2, bg_y2), table->BorderColorStrong, border_size);
+    }
+
+    // End frozen rows (when we are past the last frozen row line, teleport cursor and alter clipping rectangle)
+    // We need to do that in TableEndRow() instead of TableBeginRow() so the list clipper can mark end of row and
+    // get the new cursor position.
+    if (unfreeze_rows_request)
+        for (int column_n = 0; column_n < table->ColumnsCount; column_n++)
+        {
+            ImGuiTableColumn* column = &table->Columns[column_n];
+            column->NavLayerCurrent = (ImS8)((column_n < table->FreezeColumnsCount) ? ImGuiNavLayer_Menu : ImGuiNavLayer_Main);
+        }
+    if (unfreeze_rows_actual)
+    {
+        IM_ASSERT(table->IsUnfrozenRows == false);
+        table->IsUnfrozenRows = true;
+
+        // BgClipRect starts as table->InnerClipRect, reduce it now and make BgClipRectForDrawCmd == BgClipRect
+        float y0 = ImMax(table->RowPosY2 + 1, window->InnerClipRect.Min.y);
+        table->BgClipRect.Min.y = table->Bg2ClipRectForDrawCmd.Min.y = ImMin(y0, window->InnerClipRect.Max.y);
+        table->BgClipRect.Max.y = table->Bg2ClipRectForDrawCmd.Max.y = window->InnerClipRect.Max.y;
+        table->Bg2DrawChannelCurrent = table->Bg2DrawChannelUnfrozen;
+        IM_ASSERT(table->Bg2ClipRectForDrawCmd.Min.y <= table->Bg2ClipRectForDrawCmd.Max.y);
+
+        float row_height = table->RowPosY2 - table->RowPosY1;
+        table->RowPosY2 = window->DC.CursorPos.y = table->WorkRect.Min.y + table->RowPosY2 - table->OuterRect.Min.y;
+        table->RowPosY1 = table->RowPosY2 - row_height;
+        for (int column_n = 0; column_n < table->ColumnsCount; column_n++)
+        {
+            ImGuiTableColumn* column = &table->Columns[column_n];
+            column->DrawChannelCurrent = column->DrawChannelUnfrozen;
+            column->ClipRect.Min.y = table->Bg2ClipRectForDrawCmd.Min.y;
+        }
+
+        // Update cliprect ahead of TableBeginCell() so clipper can access to new ClipRect->Min.y
+        SetWindowClipRectBeforeSetChannel(window, table->Columns[0].ClipRect);
+        table->DrawSplitter->SetCurrentChannel(window->DrawList, table->Columns[0].DrawChannelCurrent);
+    }
+
+    if (!(table->RowFlags & ImGuiTableRowFlags_Headers))
+        table->RowBgColorCounter++;
+    table->IsInsideRow = false;
+}
+
+//-------------------------------------------------------------------------
+// [SECTION] Tables: Columns changes
+//-------------------------------------------------------------------------
+// - TableGetColumnIndex()
+// - TableSetColumnIndex()
+// - TableNextColumn()
+// - TableBeginCell() [Internal]
+// - TableEndCell() [Internal]
+//-------------------------------------------------------------------------
+
+int ImGui::TableGetColumnIndex()
+{
+    ImGuiContext& g = *GImGui;
+    ImGuiTable* table = g.CurrentTable;
+    if (!table)
+        return 0;
+    return table->CurrentColumn;
+}
+
+// [Public] Append into a specific column
+bool ImGui::TableSetColumnIndex(int column_n)
+{
+    ImGuiContext& g = *GImGui;
+    ImGuiTable* table = g.CurrentTable;
+    if (!table)
+        return false;
+
+    if (table->CurrentColumn != column_n)
+    {
+        if (table->CurrentColumn != -1)
+            TableEndCell(table);
+        IM_ASSERT(column_n >= 0 && table->ColumnsCount);
+        TableBeginCell(table, column_n);
+    }
+
+    // Return whether the column is visible. User may choose to skip submitting items based on this return value,
+    // however they shouldn't skip submitting for columns that may have the tallest contribution to row height.
+    return (table->RequestOutputMaskByIndex & ((ImU64)1 << column_n)) != 0;
+}
+
+// [Public] Append into the next column, wrap and create a new row when already on last column
+bool ImGui::TableNextColumn()
+{
+    ImGuiContext& g = *GImGui;
+    ImGuiTable* table = g.CurrentTable;
+    if (!table)
+        return false;
+
+    if (table->IsInsideRow && table->CurrentColumn + 1 < table->ColumnsCount)
+    {
+        if (table->CurrentColumn != -1)
+            TableEndCell(table);
+        TableBeginCell(table, table->CurrentColumn + 1);
+    }
+    else
+    {
+        TableNextRow();
+        TableBeginCell(table, 0);
+    }
+
+    // Return whether the column is visible. User may choose to skip submitting items based on this return value,
+    // however they shouldn't skip submitting for columns that may have the tallest contribution to row height.
+    int column_n = table->CurrentColumn;
+    return (table->RequestOutputMaskByIndex & ((ImU64)1 << column_n)) != 0;
+}
+
+
+// [Internal] Called by TableSetColumnIndex()/TableNextColumn()
+// This is called very frequently, so we need to be mindful of unnecessary overhead.
+// FIXME-TABLE FIXME-OPT: Could probably shortcut some things for non-active or clipped columns.
+void ImGui::TableBeginCell(ImGuiTable* table, int column_n)
+{
+    ImGuiTableColumn* column = &table->Columns[column_n];
+    ImGuiWindow* window = table->InnerWindow;
+    table->CurrentColumn = column_n;
+
+    // Start position is roughly ~~ CellRect.Min + CellPadding + Indent
+    float start_x = column->WorkMinX;
+    if (column->Flags & ImGuiTableColumnFlags_IndentEnable)
+        start_x += table->RowIndentOffsetX; // ~~ += window.DC.Indent.x - table->HostIndentX, except we locked it for the row.
+
+    window->DC.CursorPos.x = start_x;
+    window->DC.CursorPos.y = table->RowPosY1 + table->CellPaddingY;
+    window->DC.CursorMaxPos.x = window->DC.CursorPos.x;
+    window->DC.ColumnsOffset.x = start_x - window->Pos.x - window->DC.Indent.x; // FIXME-WORKRECT
+    window->DC.CurrLineTextBaseOffset = table->RowTextBaseline;
+    window->DC.NavLayerCurrent = (ImGuiNavLayer)column->NavLayerCurrent;
+
+    window->WorkRect.Min.y = window->DC.CursorPos.y;
+    window->WorkRect.Min.x = column->WorkMinX;
+    window->WorkRect.Max.x = column->WorkMaxX;
+    window->DC.ItemWidth = column->ItemWidth;
+
+    // To allow ImGuiListClipper to function we propagate our row height
+    if (!column->IsEnabled)
+        window->DC.CursorPos.y = ImMax(window->DC.CursorPos.y, table->RowPosY2);
+
+    window->SkipItems = column->IsSkipItems;
+    if (column->IsSkipItems)
+    {
+        ImGuiContext& g = *GImGui;
+        g.LastItemData.ID = 0;
+        g.LastItemData.StatusFlags = 0;
+    }
+
+    if (table->Flags & ImGuiTableFlags_NoClip)
+    {
+        // FIXME: if we end up drawing all borders/bg in EndTable, could remove this and just assert that channel hasn't changed.
+        table->DrawSplitter->SetCurrentChannel(window->DrawList, TABLE_DRAW_CHANNEL_NOCLIP);
+        //IM_ASSERT(table->DrawSplitter._Current == TABLE_DRAW_CHANNEL_NOCLIP);
+    }
+    else
+    {
+        // FIXME-TABLE: Could avoid this if draw channel is dummy channel?
+        SetWindowClipRectBeforeSetChannel(window, column->ClipRect);
+        table->DrawSplitter->SetCurrentChannel(window->DrawList, column->DrawChannelCurrent);
+    }
+
+    // Logging
+    ImGuiContext& g = *GImGui;
+    if (g.LogEnabled && !column->IsSkipItems)
+    {
+        LogRenderedText(&window->DC.CursorPos, "|");
+        g.LogLinePosY = FLT_MAX;
+    }
+}
+
+// [Internal] Called by TableNextRow()/TableSetColumnIndex()/TableNextColumn()
+void ImGui::TableEndCell(ImGuiTable* table)
+{
+    ImGuiTableColumn* column = &table->Columns[table->CurrentColumn];
+    ImGuiWindow* window = table->InnerWindow;
+
+    // Report maximum position so we can infer content size per column.
+    float* p_max_pos_x;
+    if (table->RowFlags & ImGuiTableRowFlags_Headers)
+        p_max_pos_x = &column->ContentMaxXHeadersUsed;  // Useful in case user submit contents in header row that is not a TableHeader() call
+    else
+        p_max_pos_x = table->IsUnfrozenRows ? &column->ContentMaxXUnfrozen : &column->ContentMaxXFrozen;
+    *p_max_pos_x = ImMax(*p_max_pos_x, window->DC.CursorMaxPos.x);
+    table->RowPosY2 = ImMax(table->RowPosY2, window->DC.CursorMaxPos.y + table->CellPaddingY);
+    column->ItemWidth = window->DC.ItemWidth;
+
+    // Propagate text baseline for the entire row
+    // FIXME-TABLE: Here we propagate text baseline from the last line of the cell.. instead of the first one.
+    table->RowTextBaseline = ImMax(table->RowTextBaseline, window->DC.PrevLineTextBaseOffset);
+}
+
+//-------------------------------------------------------------------------
+// [SECTION] Tables: Columns width management
+//-------------------------------------------------------------------------
+// - TableGetMaxColumnWidth() [Internal]
+// - TableGetColumnWidthAuto() [Internal]
+// - TableSetColumnWidth()
+// - TableSetColumnWidthAutoSingle() [Internal]
+// - TableSetColumnWidthAutoAll() [Internal]
+// - TableUpdateColumnsWeightFromWidth() [Internal]
+//-------------------------------------------------------------------------
+
+// Maximum column content width given current layout. Use column->MinX so this value on a per-column basis.
+float ImGui::TableGetMaxColumnWidth(const ImGuiTable* table, int column_n)
+{
+    const ImGuiTableColumn* column = &table->Columns[column_n];
+    float max_width = FLT_MAX;
+    const float min_column_distance = table->MinColumnWidth + table->CellPaddingX * 2.0f + table->CellSpacingX1 + table->CellSpacingX2;
+    if (table->Flags & ImGuiTableFlags_ScrollX)
+    {
+        // Frozen columns can't reach beyond visible width else scrolling will naturally break.
+        // (we use DisplayOrder as within a set of multiple frozen column reordering is possible)
+        if (column->DisplayOrder < table->FreezeColumnsRequest)
+        {
+            max_width = (table->InnerClipRect.Max.x - (table->FreezeColumnsRequest - column->DisplayOrder) * min_column_distance) - column->MinX;
+            max_width = max_width - table->OuterPaddingX - table->CellPaddingX - table->CellSpacingX2;
+        }
+    }
+    else if ((table->Flags & ImGuiTableFlags_NoKeepColumnsVisible) == 0)
+    {
+        // If horizontal scrolling if disabled, we apply a final lossless shrinking of columns in order to make
+        // sure they are all visible. Because of this we also know that all of the columns will always fit in
+        // table->WorkRect and therefore in table->InnerRect (because ScrollX is off)
+        // FIXME-TABLE: This is solved incorrectly but also quite a difficult problem to fix as we also want ClipRect width to match.
+        // See "table_width_distrib" and "table_width_keep_visible" tests
+        max_width = table->WorkRect.Max.x - (table->ColumnsEnabledCount - column->IndexWithinEnabledSet - 1) * min_column_distance - column->MinX;
+        //max_width -= table->CellSpacingX1;
+        max_width -= table->CellSpacingX2;
+        max_width -= table->CellPaddingX * 2.0f;
+        max_width -= table->OuterPaddingX;
+    }
+    return max_width;
+}
+
+// Note this is meant to be stored in column->WidthAuto, please generally use the WidthAuto field
+float ImGui::TableGetColumnWidthAuto(ImGuiTable* table, ImGuiTableColumn* column)
+{
+    const float content_width_body = ImMax(column->ContentMaxXFrozen, column->ContentMaxXUnfrozen) - column->WorkMinX;
+    const float content_width_headers = column->ContentMaxXHeadersIdeal - column->WorkMinX;
+    float width_auto = content_width_body;
+    if (!(column->Flags & ImGuiTableColumnFlags_NoHeaderWidth))
+        width_auto = ImMax(width_auto, content_width_headers);
+
+    // Non-resizable fixed columns preserve their requested width
+    if ((column->Flags & ImGuiTableColumnFlags_WidthFixed) && column->InitStretchWeightOrWidth > 0.0f)
+        if (!(table->Flags & ImGuiTableFlags_Resizable) || (column->Flags & ImGuiTableColumnFlags_NoResize))
+            width_auto = column->InitStretchWeightOrWidth;
+
+    return ImMax(width_auto, table->MinColumnWidth);
+}
+
+// 'width' = inner column width, without padding
+void ImGui::TableSetColumnWidth(int column_n, float width)
+{
+    ImGuiContext& g = *GImGui;
+    ImGuiTable* table = g.CurrentTable;
+    IM_ASSERT(table != NULL && table->IsLayoutLocked == false);
+    IM_ASSERT(column_n >= 0 && column_n < table->ColumnsCount);
+    ImGuiTableColumn* column_0 = &table->Columns[column_n];
+    float column_0_width = width;
+
+    // Apply constraints early
+    // Compare both requested and actual given width to avoid overwriting requested width when column is stuck (minimum size, bounded)
+    IM_ASSERT(table->MinColumnWidth > 0.0f);
+    const float min_width = table->MinColumnWidth;
+    const float max_width = ImMax(min_width, TableGetMaxColumnWidth(table, column_n));
+    column_0_width = ImClamp(column_0_width, min_width, max_width);
+    if (column_0->WidthGiven == column_0_width || column_0->WidthRequest == column_0_width)
+        return;
+
+    //IMGUI_DEBUG_PRINT("TableSetColumnWidth(%d, %.1f->%.1f)\n", column_0_idx, column_0->WidthGiven, column_0_width);
+    ImGuiTableColumn* column_1 = (column_0->NextEnabledColumn != -1) ? &table->Columns[column_0->NextEnabledColumn] : NULL;
+
+    // In this surprisingly not simple because of how we support mixing Fixed and multiple Stretch columns.
+    // - All fixed: easy.
+    // - All stretch: easy.
+    // - One or more fixed + one stretch: easy.
+    // - One or more fixed + more than one stretch: tricky.
+    // Qt when manual resize is enabled only support a single _trailing_ stretch column.
+
+    // When forwarding resize from Wn| to Fn+1| we need to be considerate of the _NoResize flag on Fn+1.
+    // FIXME-TABLE: Find a way to rewrite all of this so interactions feel more consistent for the user.
+    // Scenarios:
+    // - F1 F2 F3  resize from F1| or F2|   --> ok: alter ->WidthRequested of Fixed column. Subsequent columns will be offset.
+    // - F1 F2 F3  resize from F3|          --> ok: alter ->WidthRequested of Fixed column. If active, ScrollX extent can be altered.
+    // - F1 F2 W3  resize from F1| or F2|   --> ok: alter ->WidthRequested of Fixed column. If active, ScrollX extent can be altered, but it doesn't make much sense as the Stretch column will always be minimal size.
+    // - F1 F2 W3  resize from W3|          --> ok: no-op (disabled by Resize Rule 1)
+    // - W1 W2 W3  resize from W1| or W2|   --> ok
+    // - W1 W2 W3  resize from W3|          --> ok: no-op (disabled by Resize Rule 1)
+    // - W1 F2 F3  resize from F3|          --> ok: no-op (disabled by Resize Rule 1)
+    // - W1 F2     resize from F2|          --> ok: no-op (disabled by Resize Rule 1)
+    // - W1 W2 F3  resize from W1| or W2|   --> ok
+    // - W1 F2 W3  resize from W1| or F2|   --> ok
+    // - F1 W2 F3  resize from W2|          --> ok
+    // - F1 W3 F2  resize from W3|          --> ok
+    // - W1 F2 F3  resize from W1|          --> ok: equivalent to resizing |F2. F3 will not move.
+    // - W1 F2 F3  resize from F2|          --> ok
+    // All resizes from a Wx columns are locking other columns.
+
+    // Possible improvements:
+    // - W1 W2 W3  resize W1|               --> to not be stuck, both W2 and W3 would stretch down. Seems possible to fix. Would be most beneficial to simplify resize of all-weighted columns.
+    // - W3 F1 F2  resize W3|               --> to not be stuck past F1|, both F1 and F2 would need to stretch down, which would be lossy or ambiguous. Seems hard to fix.
+
+    // [Resize Rule 1] Can't resize from right of right-most visible column if there is any Stretch column. Implemented in TableUpdateLayout().
+
+    // If we have all Fixed columns OR resizing a Fixed column that doesn't come after a Stretch one, we can do an offsetting resize.
+    // This is the preferred resize path
+    if (column_0->Flags & ImGuiTableColumnFlags_WidthFixed)
+        if (!column_1 || table->LeftMostStretchedColumn == -1 || table->Columns[table->LeftMostStretchedColumn].DisplayOrder >= column_0->DisplayOrder)
+        {
+            column_0->WidthRequest = column_0_width;
+            table->IsSettingsDirty = true;
+            return;
+        }
+
+    // We can also use previous column if there's no next one (this is used when doing an auto-fit on the right-most stretch column)
+    if (column_1 == NULL)
+        column_1 = (column_0->PrevEnabledColumn != -1) ? &table->Columns[column_0->PrevEnabledColumn] : NULL;
+    if (column_1 == NULL)
+        return;
+
+    // Resizing from right-side of a Stretch column before a Fixed column forward sizing to left-side of fixed column.
+    // (old_a + old_b == new_a + new_b) --> (new_a == old_a + old_b - new_b)
+    float column_1_width = ImMax(column_1->WidthRequest - (column_0_width - column_0->WidthRequest), min_width);
+    column_0_width = column_0->WidthRequest + column_1->WidthRequest - column_1_width;
+    IM_ASSERT(column_0_width > 0.0f && column_1_width > 0.0f);
+    column_0->WidthRequest = column_0_width;
+    column_1->WidthRequest = column_1_width;
+    if ((column_0->Flags | column_1->Flags) & ImGuiTableColumnFlags_WidthStretch)
+        TableUpdateColumnsWeightFromWidth(table);
+    table->IsSettingsDirty = true;
+}
+
+// Disable clipping then auto-fit, will take 2 frames
+// (we don't take a shortcut for unclipped columns to reduce inconsistencies when e.g. resizing multiple columns)
+void ImGui::TableSetColumnWidthAutoSingle(ImGuiTable* table, int column_n)
+{
+    // Single auto width uses auto-fit
+    ImGuiTableColumn* column = &table->Columns[column_n];
+    if (!column->IsEnabled)
+        return;
+    column->CannotSkipItemsQueue = (1 << 0);
+    table->AutoFitSingleColumn = (ImGuiTableColumnIdx)column_n;
+}
+
+void ImGui::TableSetColumnWidthAutoAll(ImGuiTable* table)
+{
+    for (int column_n = 0; column_n < table->ColumnsCount; column_n++)
+    {
+        ImGuiTableColumn* column = &table->Columns[column_n];
+        if (!column->IsEnabled && !(column->Flags & ImGuiTableColumnFlags_WidthStretch)) // Cannot reset weight of hidden stretch column
+            continue;
+        column->CannotSkipItemsQueue = (1 << 0);
+        column->AutoFitQueue = (1 << 1);
+    }
+}
+
+void ImGui::TableUpdateColumnsWeightFromWidth(ImGuiTable* table)
+{
+    IM_ASSERT(table->LeftMostStretchedColumn != -1 && table->RightMostStretchedColumn != -1);
+
+    // Measure existing quantity
+    float visible_weight = 0.0f;
+    float visible_width = 0.0f;
+    for (int column_n = 0; column_n < table->ColumnsCount; column_n++)
+    {
+        ImGuiTableColumn* column = &table->Columns[column_n];
+        if (!column->IsEnabled || !(column->Flags & ImGuiTableColumnFlags_WidthStretch))
+            continue;
+        IM_ASSERT(column->StretchWeight > 0.0f);
+        visible_weight += column->StretchWeight;
+        visible_width += column->WidthRequest;
+    }
+    IM_ASSERT(visible_weight > 0.0f && visible_width > 0.0f);
+
+    // Apply new weights
+    for (int column_n = 0; column_n < table->ColumnsCount; column_n++)
+    {
+        ImGuiTableColumn* column = &table->Columns[column_n];
+        if (!column->IsEnabled || !(column->Flags & ImGuiTableColumnFlags_WidthStretch))
+            continue;
+        column->StretchWeight = (column->WidthRequest / visible_width) * visible_weight;
+        IM_ASSERT(column->StretchWeight > 0.0f);
+    }
+}
+
+//-------------------------------------------------------------------------
+// [SECTION] Tables: Drawing
+//-------------------------------------------------------------------------
+// - TablePushBackgroundChannel() [Internal]
+// - TablePopBackgroundChannel() [Internal]
+// - TableSetupDrawChannels() [Internal]
+// - TableMergeDrawChannels() [Internal]
+// - TableDrawBorders() [Internal]
+//-------------------------------------------------------------------------
+
+// Bg2 is used by Selectable (and possibly other widgets) to render to the background.
+// Unlike our Bg0/1 channel which we uses for RowBg/CellBg/Borders and where we guarantee all shapes to be CPU-clipped, the Bg2 channel being widgets-facing will rely on regular ClipRect.
+void ImGui::TablePushBackgroundChannel()
+{
+    ImGuiContext& g = *GImGui;
+    ImGuiWindow* window = g.CurrentWindow;
+    ImGuiTable* table = g.CurrentTable;
+
+    // Optimization: avoid SetCurrentChannel() + PushClipRect()
+    table->HostBackupInnerClipRect = window->ClipRect;
+    SetWindowClipRectBeforeSetChannel(window, table->Bg2ClipRectForDrawCmd);
+    table->DrawSplitter->SetCurrentChannel(window->DrawList, table->Bg2DrawChannelCurrent);
+}
+
+void ImGui::TablePopBackgroundChannel()
+{
+    ImGuiContext& g = *GImGui;
+    ImGuiWindow* window = g.CurrentWindow;
+    ImGuiTable* table = g.CurrentTable;
+    ImGuiTableColumn* column = &table->Columns[table->CurrentColumn];
+
+    // Optimization: avoid PopClipRect() + SetCurrentChannel()
+    SetWindowClipRectBeforeSetChannel(window, table->HostBackupInnerClipRect);
+    table->DrawSplitter->SetCurrentChannel(window->DrawList, column->DrawChannelCurrent);
+}
+
+// Allocate draw channels. Called by TableUpdateLayout()
+// - We allocate them following storage order instead of display order so reordering columns won't needlessly
+//   increase overall dormant memory cost.
+// - We isolate headers draw commands in their own channels instead of just altering clip rects.
+//   This is in order to facilitate merging of draw commands.
+// - After crossing FreezeRowsCount, all columns see their current draw channel changed to a second set of channels.
+// - We only use the dummy draw channel so we can push a null clipping rectangle into it without affecting other
+//   channels, while simplifying per-row/per-cell overhead. It will be empty and discarded when merged.
+// - We allocate 1 or 2 background draw channels. This is because we know TablePushBackgroundChannel() is only used for
+//   horizontal spanning. If we allowed vertical spanning we'd need one background draw channel per merge group (1-4).
+// Draw channel allocation (before merging):
+// - NoClip                       --> 2+D+1 channels: bg0/1 + bg2 + foreground (same clip rect == always 1 draw call)
+// - Clip                         --> 2+D+N channels
+// - FreezeRows                   --> 2+D+N*2 (unless scrolling value is zero)
+// - FreezeRows || FreezeColunns  --> 3+D+N*2 (unless scrolling value is zero)
+// Where D is 1 if any column is clipped or hidden (dummy channel) otherwise 0.
+void ImGui::TableSetupDrawChannels(ImGuiTable* table)
+{
+    const int freeze_row_multiplier = (table->FreezeRowsCount > 0) ? 2 : 1;
+    const int channels_for_row = (table->Flags & ImGuiTableFlags_NoClip) ? 1 : table->ColumnsEnabledCount;
+    const int channels_for_bg = 1 + 1 * freeze_row_multiplier;
+    const int channels_for_dummy = (table->ColumnsEnabledCount < table->ColumnsCount || table->VisibleMaskByIndex != table->EnabledMaskByIndex) ? +1 : 0;
+    const int channels_total = channels_for_bg + (channels_for_row * freeze_row_multiplier) + channels_for_dummy;
+    table->DrawSplitter->Split(table->InnerWindow->DrawList, channels_total);
+    table->DummyDrawChannel = (ImGuiTableDrawChannelIdx)((channels_for_dummy > 0) ? channels_total - 1 : -1);
+    table->Bg2DrawChannelCurrent = TABLE_DRAW_CHANNEL_BG2_FROZEN;
+    table->Bg2DrawChannelUnfrozen = (ImGuiTableDrawChannelIdx)((table->FreezeRowsCount > 0) ? 2 + channels_for_row : TABLE_DRAW_CHANNEL_BG2_FROZEN);
+
+    int draw_channel_current = 2;
+    for (int column_n = 0; column_n < table->ColumnsCount; column_n++)
+    {
+        ImGuiTableColumn* column = &table->Columns[column_n];
+        if (column->IsVisibleX && column->IsVisibleY)
+        {
+            column->DrawChannelFrozen = (ImGuiTableDrawChannelIdx)(draw_channel_current);
+            column->DrawChannelUnfrozen = (ImGuiTableDrawChannelIdx)(draw_channel_current + (table->FreezeRowsCount > 0 ? channels_for_row + 1 : 0));
+            if (!(table->Flags & ImGuiTableFlags_NoClip))
+                draw_channel_current++;
+        }
+        else
+        {
+            column->DrawChannelFrozen = column->DrawChannelUnfrozen = table->DummyDrawChannel;
+        }
+        column->DrawChannelCurrent = column->DrawChannelFrozen;
+    }
+
+    // Initial draw cmd starts with a BgClipRect that matches the one of its host, to facilitate merge draw commands by default.
+    // All our cell highlight are manually clipped with BgClipRect. When unfreezing it will be made smaller to fit scrolling rect.
+    // (This technically isn't part of setting up draw channels, but is reasonably related to be done here)
+    table->BgClipRect = table->InnerClipRect;
+    table->Bg0ClipRectForDrawCmd = table->OuterWindow->ClipRect;
+    table->Bg2ClipRectForDrawCmd = table->HostClipRect;
+    IM_ASSERT(table->BgClipRect.Min.y <= table->BgClipRect.Max.y);
+}
+
+// This function reorder draw channels based on matching clip rectangle, to facilitate merging them. Called by EndTable().
+// For simplicity we call it TableMergeDrawChannels() but in fact it only reorder channels + overwrite ClipRect,
+// actual merging is done by table->DrawSplitter.Merge() which is called right after TableMergeDrawChannels().
+//
+// Columns where the contents didn't stray off their local clip rectangle can be merged. To achieve
+// this we merge their clip rect and make them contiguous in the channel list, so they can be merged
+// by the call to DrawSplitter.Merge() following to the call to this function.
+// We reorder draw commands by arranging them into a maximum of 4 distinct groups:
+//
+//   1 group:               2 groups:              2 groups:              4 groups:
+//   [ 0. ] no freeze       [ 0. ] row freeze      [ 01 ] col freeze      [ 01 ] row+col freeze
+//   [ .. ]  or no scroll   [ 2. ]  and v-scroll   [ .. ]  and h-scroll   [ 23 ]  and v+h-scroll
+//
+// Each column itself can use 1 channel (row freeze disabled) or 2 channels (row freeze enabled).
+// When the contents of a column didn't stray off its limit, we move its channels into the corresponding group
+// based on its position (within frozen rows/columns groups or not).
+// At the end of the operation our 1-4 groups will each have a ImDrawCmd using the same ClipRect.
+// This function assume that each column are pointing to a distinct draw channel,
+// otherwise merge_group->ChannelsCount will not match set bit count of merge_group->ChannelsMask.
+//
+// Column channels will not be merged into one of the 1-4 groups in the following cases:
+// - The contents stray off its clipping rectangle (we only compare the MaxX value, not the MinX value).
+//   Direct ImDrawList calls won't be taken into account by default, if you use them make sure the ImGui:: bounds
+//   matches, by e.g. calling SetCursorScreenPos().
+// - The channel uses more than one draw command itself. We drop all our attempt at merging stuff here..
+//   we could do better but it's going to be rare and probably not worth the hassle.
+// Columns for which the draw channel(s) haven't been merged with other will use their own ImDrawCmd.
+//
+// This function is particularly tricky to understand.. take a breath.
+void ImGui::TableMergeDrawChannels(ImGuiTable* table)
+{
+    ImGuiContext& g = *GImGui;
+    ImDrawListSplitter* splitter = table->DrawSplitter;
+    const bool has_freeze_v = (table->FreezeRowsCount > 0);
+    const bool has_freeze_h = (table->FreezeColumnsCount > 0);
+    IM_ASSERT(splitter->_Current == 0);
+
+    // Track which groups we are going to attempt to merge, and which channels goes into each group.
+    struct MergeGroup
+    {
+        ImRect  ClipRect;
+        int     ChannelsCount;
+        ImBitArray<IMGUI_TABLE_MAX_DRAW_CHANNELS> ChannelsMask;
+
+        MergeGroup() { ChannelsCount = 0; }
+    };
+    int merge_group_mask = 0x00;
+    MergeGroup merge_groups[4];
+
+    // 1. Scan channels and take note of those which can be merged
+    for (int column_n = 0; column_n < table->ColumnsCount; column_n++)
+    {
+        if ((table->VisibleMaskByIndex & ((ImU64)1 << column_n)) == 0)
+            continue;
+        ImGuiTableColumn* column = &table->Columns[column_n];
+
+        const int merge_group_sub_count = has_freeze_v ? 2 : 1;
+        for (int merge_group_sub_n = 0; merge_group_sub_n < merge_group_sub_count; merge_group_sub_n++)
+        {
+            const int channel_no = (merge_group_sub_n == 0) ? column->DrawChannelFrozen : column->DrawChannelUnfrozen;
+
+            // Don't attempt to merge if there are multiple draw calls within the column
+            ImDrawChannel* src_channel = &splitter->_Channels[channel_no];
+            if (src_channel->_CmdBuffer.Size > 0 && src_channel->_CmdBuffer.back().ElemCount == 0 && src_channel->_CmdBuffer.back().UserCallback == NULL) // Equivalent of PopUnusedDrawCmd()
+                src_channel->_CmdBuffer.pop_back();
+            if (src_channel->_CmdBuffer.Size != 1)
+                continue;
+
+            // Find out the width of this merge group and check if it will fit in our column
+            // (note that we assume that rendering didn't stray on the left direction. we should need a CursorMinPos to detect it)
+            if (!(column->Flags & ImGuiTableColumnFlags_NoClip))
+            {
+                float content_max_x;
+                if (!has_freeze_v)
+                    content_max_x = ImMax(column->ContentMaxXUnfrozen, column->ContentMaxXHeadersUsed); // No row freeze
+                else if (merge_group_sub_n == 0)
+                    content_max_x = ImMax(column->ContentMaxXFrozen, column->ContentMaxXHeadersUsed);   // Row freeze: use width before freeze
+                else
+                    content_max_x = column->ContentMaxXUnfrozen;                                        // Row freeze: use width after freeze
+                if (content_max_x > column->ClipRect.Max.x)
+                    continue;
+            }
+
+            const int merge_group_n = (has_freeze_h && column_n < table->FreezeColumnsCount ? 0 : 1) + (has_freeze_v && merge_group_sub_n == 0 ? 0 : 2);
+            IM_ASSERT(channel_no < IMGUI_TABLE_MAX_DRAW_CHANNELS);
+            MergeGroup* merge_group = &merge_groups[merge_group_n];
+            if (merge_group->ChannelsCount == 0)
+                merge_group->ClipRect = ImRect(+FLT_MAX, +FLT_MAX, -FLT_MAX, -FLT_MAX);
+            merge_group->ChannelsMask.SetBit(channel_no);
+            merge_group->ChannelsCount++;
+            merge_group->ClipRect.Add(src_channel->_CmdBuffer[0].ClipRect);
+            merge_group_mask |= (1 << merge_group_n);
+        }
+
+        // Invalidate current draw channel
+        // (we don't clear DrawChannelFrozen/DrawChannelUnfrozen solely to facilitate debugging/later inspection of data)
+        column->DrawChannelCurrent = (ImGuiTableDrawChannelIdx)-1;
+    }
+
+    // [DEBUG] Display merge groups
+#if 0
+    if (g.IO.KeyShift)
+        for (int merge_group_n = 0; merge_group_n < IM_ARRAYSIZE(merge_groups); merge_group_n++)
+        {
+            MergeGroup* merge_group = &merge_groups[merge_group_n];
+            if (merge_group->ChannelsCount == 0)
+                continue;
+            char buf[32];
+            ImFormatString(buf, 32, "MG%d:%d", merge_group_n, merge_group->ChannelsCount);
+            ImVec2 text_pos = merge_group->ClipRect.Min + ImVec2(4, 4);
+            ImVec2 text_size = CalcTextSize(buf, NULL);
+            GetForegroundDrawList()->AddRectFilled(text_pos, text_pos + text_size, IM_COL32(0, 0, 0, 255));
+            GetForegroundDrawList()->AddText(text_pos, IM_COL32(255, 255, 0, 255), buf, NULL);
+            GetForegroundDrawList()->AddRect(merge_group->ClipRect.Min, merge_group->ClipRect.Max, IM_COL32(255, 255, 0, 255));
+        }
+#endif
+
+    // 2. Rewrite channel list in our preferred order
+    if (merge_group_mask != 0)
+    {
+        // We skip channel 0 (Bg0/Bg1) and 1 (Bg2 frozen) from the shuffling since they won't move - see channels allocation in TableSetupDrawChannels().
+        const int LEADING_DRAW_CHANNELS = 2;
+        g.DrawChannelsTempMergeBuffer.resize(splitter->_Count - LEADING_DRAW_CHANNELS); // Use shared temporary storage so the allocation gets amortized
+        ImDrawChannel* dst_tmp = g.DrawChannelsTempMergeBuffer.Data;
+        ImBitArray<IMGUI_TABLE_MAX_DRAW_CHANNELS> remaining_mask;                       // We need 132-bit of storage
+        remaining_mask.SetBitRange(LEADING_DRAW_CHANNELS, splitter->_Count);
+        remaining_mask.ClearBit(table->Bg2DrawChannelUnfrozen);
+        IM_ASSERT(has_freeze_v == false || table->Bg2DrawChannelUnfrozen != TABLE_DRAW_CHANNEL_BG2_FROZEN);
+        int remaining_count = splitter->_Count - (has_freeze_v ? LEADING_DRAW_CHANNELS + 1 : LEADING_DRAW_CHANNELS);
+        //ImRect host_rect = (table->InnerWindow == table->OuterWindow) ? table->InnerClipRect : table->HostClipRect;
+        ImRect host_rect = table->HostClipRect;
+        for (int merge_group_n = 0; merge_group_n < IM_ARRAYSIZE(merge_groups); merge_group_n++)
+        {
+            if (int merge_channels_count = merge_groups[merge_group_n].ChannelsCount)
+            {
+                MergeGroup* merge_group = &merge_groups[merge_group_n];
+                ImRect merge_clip_rect = merge_group->ClipRect;
+
+                // Extend outer-most clip limits to match those of host, so draw calls can be merged even if
+                // outer-most columns have some outer padding offsetting them from their parent ClipRect.
+                // The principal cases this is dealing with are:
+                // - On a same-window table (not scrolling = single group), all fitting columns ClipRect -> will extend and match host ClipRect -> will merge
+                // - Columns can use padding and have left-most ClipRect.Min.x and right-most ClipRect.Max.x != from host ClipRect -> will extend and match host ClipRect -> will merge
+                // FIXME-TABLE FIXME-WORKRECT: We are wasting a merge opportunity on tables without scrolling if column doesn't fit
+                // within host clip rect, solely because of the half-padding difference between window->WorkRect and window->InnerClipRect.
+                if ((merge_group_n & 1) == 0 || !has_freeze_h)
+                    merge_clip_rect.Min.x = ImMin(merge_clip_rect.Min.x, host_rect.Min.x);
+                if ((merge_group_n & 2) == 0 || !has_freeze_v)
+                    merge_clip_rect.Min.y = ImMin(merge_clip_rect.Min.y, host_rect.Min.y);
+                if ((merge_group_n & 1) != 0)
+                    merge_clip_rect.Max.x = ImMax(merge_clip_rect.Max.x, host_rect.Max.x);
+                if ((merge_group_n & 2) != 0 && (table->Flags & ImGuiTableFlags_NoHostExtendY) == 0)
+                    merge_clip_rect.Max.y = ImMax(merge_clip_rect.Max.y, host_rect.Max.y);
+#if 0
+                GetOverlayDrawList()->AddRect(merge_group->ClipRect.Min, merge_group->ClipRect.Max, IM_COL32(255, 0, 0, 200), 0.0f, 0, 1.0f);
+                GetOverlayDrawList()->AddLine(merge_group->ClipRect.Min, merge_clip_rect.Min, IM_COL32(255, 100, 0, 200));
+                GetOverlayDrawList()->AddLine(merge_group->ClipRect.Max, merge_clip_rect.Max, IM_COL32(255, 100, 0, 200));
+#endif
+                remaining_count -= merge_group->ChannelsCount;
+                for (int n = 0; n < IM_ARRAYSIZE(remaining_mask.Storage); n++)
+                    remaining_mask.Storage[n] &= ~merge_group->ChannelsMask.Storage[n];
+                for (int n = 0; n < splitter->_Count && merge_channels_count != 0; n++)
+                {
+                    // Copy + overwrite new clip rect
+                    if (!merge_group->ChannelsMask.TestBit(n))
+                        continue;
+                    merge_group->ChannelsMask.ClearBit(n);
+                    merge_channels_count--;
+
+                    ImDrawChannel* channel = &splitter->_Channels[n];
+                    IM_ASSERT(channel->_CmdBuffer.Size == 1 && merge_clip_rect.Contains(ImRect(channel->_CmdBuffer[0].ClipRect)));
+                    channel->_CmdBuffer[0].ClipRect = merge_clip_rect.ToVec4();
+                    memcpy(dst_tmp++, channel, sizeof(ImDrawChannel));
+                }
+            }
+
+            // Make sure Bg2DrawChannelUnfrozen appears in the middle of our groups (whereas Bg0/Bg1 and Bg2 frozen are fixed to 0 and 1)
+            if (merge_group_n == 1 && has_freeze_v)
+                memcpy(dst_tmp++, &splitter->_Channels[table->Bg2DrawChannelUnfrozen], sizeof(ImDrawChannel));
+        }
+
+        // Append unmergeable channels that we didn't reorder at the end of the list
+        for (int n = 0; n < splitter->_Count && remaining_count != 0; n++)
+        {
+            if (!remaining_mask.TestBit(n))
+                continue;
+            ImDrawChannel* channel = &splitter->_Channels[n];
+            memcpy(dst_tmp++, channel, sizeof(ImDrawChannel));
+            remaining_count--;
+        }
+        IM_ASSERT(dst_tmp == g.DrawChannelsTempMergeBuffer.Data + g.DrawChannelsTempMergeBuffer.Size);
+        memcpy(splitter->_Channels.Data + LEADING_DRAW_CHANNELS, g.DrawChannelsTempMergeBuffer.Data, (splitter->_Count - LEADING_DRAW_CHANNELS) * sizeof(ImDrawChannel));
+    }
+}
+
+// FIXME-TABLE: This is a mess, need to redesign how we render borders (as some are also done in TableEndRow)
+void ImGui::TableDrawBorders(ImGuiTable* table)
+{
+    ImGuiWindow* inner_window = table->InnerWindow;
+    if (!table->OuterWindow->ClipRect.Overlaps(table->OuterRect))
+        return;
+
+    ImDrawList* inner_drawlist = inner_window->DrawList;
+    table->DrawSplitter->SetCurrentChannel(inner_drawlist, TABLE_DRAW_CHANNEL_BG0);
+    inner_drawlist->PushClipRect(table->Bg0ClipRectForDrawCmd.Min, table->Bg0ClipRectForDrawCmd.Max, false);
+
+    // Draw inner border and resizing feedback
+    ImGuiTableInstanceData* table_instance = TableGetInstanceData(table, table->InstanceCurrent);
+    const float border_size = TABLE_BORDER_SIZE;
+    const float draw_y1 = table->InnerRect.Min.y;
+    const float draw_y2_body = table->InnerRect.Max.y;
+    const float draw_y2_head = table->IsUsingHeaders ? ImMin(table->InnerRect.Max.y, (table->FreezeRowsCount >= 1 ? table->InnerRect.Min.y : table->WorkRect.Min.y) + table_instance->LastFirstRowHeight) : draw_y1;
+    if (table->Flags & ImGuiTableFlags_BordersInnerV)
+    {
+        for (int order_n = 0; order_n < table->ColumnsCount; order_n++)
+        {
+            if (!(table->EnabledMaskByDisplayOrder & ((ImU64)1 << order_n)))
+                continue;
+
+            const int column_n = table->DisplayOrderToIndex[order_n];
+            ImGuiTableColumn* column = &table->Columns[column_n];
+            const bool is_hovered = (table->HoveredColumnBorder == column_n);
+            const bool is_resized = (table->ResizedColumn == column_n) && (table->InstanceInteracted == table->InstanceCurrent);
+            const bool is_resizable = (column->Flags & (ImGuiTableColumnFlags_NoResize | ImGuiTableColumnFlags_NoDirectResize_)) == 0;
+            const bool is_frozen_separator = (table->FreezeColumnsCount == order_n + 1);
+            if (column->MaxX > table->InnerClipRect.Max.x && !is_resized)
+                continue;
+
+            // Decide whether right-most column is visible
+            if (column->NextEnabledColumn == -1 && !is_resizable)
+                if ((table->Flags & ImGuiTableFlags_SizingMask_) != ImGuiTableFlags_SizingFixedSame || (table->Flags & ImGuiTableFlags_NoHostExtendX))
+                    continue;
+            if (column->MaxX <= column->ClipRect.Min.x) // FIXME-TABLE FIXME-STYLE: Assume BorderSize==1, this is problematic if we want to increase the border size..
+                continue;
+
+            // Draw in outer window so right-most column won't be clipped
+            // Always draw full height border when being resized/hovered, or on the delimitation of frozen column scrolling.
+            ImU32 col;
+            float draw_y2;
+            if (is_hovered || is_resized || is_frozen_separator)
+            {
+                draw_y2 = draw_y2_body;
+                col = is_resized ? GetColorU32(ImGuiCol_SeparatorActive) : is_hovered ? GetColorU32(ImGuiCol_SeparatorHovered) : table->BorderColorStrong;
+            }
+            else
+            {
+                draw_y2 = (table->Flags & (ImGuiTableFlags_NoBordersInBody | ImGuiTableFlags_NoBordersInBodyUntilResize)) ? draw_y2_head : draw_y2_body;
+                col = (table->Flags & (ImGuiTableFlags_NoBordersInBody | ImGuiTableFlags_NoBordersInBodyUntilResize)) ? table->BorderColorStrong : table->BorderColorLight;
+            }
+
+            if (draw_y2 > draw_y1)
+                inner_drawlist->AddLine(ImVec2(column->MaxX, draw_y1), ImVec2(column->MaxX, draw_y2), col, border_size);
+        }
+    }
+
+    // Draw outer border
+    // FIXME: could use AddRect or explicit VLine/HLine helper?
+    if (table->Flags & ImGuiTableFlags_BordersOuter)
+    {
+        // Display outer border offset by 1 which is a simple way to display it without adding an extra draw call
+        // (Without the offset, in outer_window it would be rendered behind cells, because child windows are above their
+        // parent. In inner_window, it won't reach out over scrollbars. Another weird solution would be to display part
+        // of it in inner window, and the part that's over scrollbars in the outer window..)
+        // Either solution currently won't allow us to use a larger border size: the border would clipped.
+        const ImRect outer_border = table->OuterRect;
+        const ImU32 outer_col = table->BorderColorStrong;
+        if ((table->Flags & ImGuiTableFlags_BordersOuter) == ImGuiTableFlags_BordersOuter)
+        {
+            inner_drawlist->AddRect(outer_border.Min, outer_border.Max, outer_col, 0.0f, 0, border_size);
+        }
+        else if (table->Flags & ImGuiTableFlags_BordersOuterV)
+        {
+            inner_drawlist->AddLine(outer_border.Min, ImVec2(outer_border.Min.x, outer_border.Max.y), outer_col, border_size);
+            inner_drawlist->AddLine(ImVec2(outer_border.Max.x, outer_border.Min.y), outer_border.Max, outer_col, border_size);
+        }
+        else if (table->Flags & ImGuiTableFlags_BordersOuterH)
+        {
+            inner_drawlist->AddLine(outer_border.Min, ImVec2(outer_border.Max.x, outer_border.Min.y), outer_col, border_size);
+            inner_drawlist->AddLine(ImVec2(outer_border.Min.x, outer_border.Max.y), outer_border.Max, outer_col, border_size);
+        }
+    }
+    if ((table->Flags & ImGuiTableFlags_BordersInnerH) && table->RowPosY2 < table->OuterRect.Max.y)
+    {
+        // Draw bottom-most row border
+        const float border_y = table->RowPosY2;
+        if (border_y >= table->BgClipRect.Min.y && border_y < table->BgClipRect.Max.y)
+            inner_drawlist->AddLine(ImVec2(table->BorderX1, border_y), ImVec2(table->BorderX2, border_y), table->BorderColorLight, border_size);
+    }
+
+    inner_drawlist->PopClipRect();
+}
+
+//-------------------------------------------------------------------------
+// [SECTION] Tables: Sorting
+//-------------------------------------------------------------------------
+// - TableGetSortSpecs()
+// - TableFixColumnSortDirection() [Internal]
+// - TableGetColumnNextSortDirection() [Internal]
+// - TableSetColumnSortDirection() [Internal]
+// - TableSortSpecsSanitize() [Internal]
+// - TableSortSpecsBuild() [Internal]
+//-------------------------------------------------------------------------
+
+// Return NULL if no sort specs (most often when ImGuiTableFlags_Sortable is not set)
+// You can sort your data again when 'SpecsChanged == true'. It will be true with sorting specs have changed since
+// last call, or the first time.
+// Lifetime: don't hold on this pointer over multiple frames or past any subsequent call to BeginTable()!
+ImGuiTableSortSpecs* ImGui::TableGetSortSpecs()
+{
+    ImGuiContext& g = *GImGui;
+    ImGuiTable* table = g.CurrentTable;
+    IM_ASSERT(table != NULL);
+
+    if (!(table->Flags & ImGuiTableFlags_Sortable))
+        return NULL;
+
+    // Require layout (in case TableHeadersRow() hasn't been called) as it may alter IsSortSpecsDirty in some paths.
+    if (!table->IsLayoutLocked)
+        TableUpdateLayout(table);
+
+    TableSortSpecsBuild(table);
+
+    return &table->SortSpecs;
+}
+
+static inline ImGuiSortDirection TableGetColumnAvailSortDirection(ImGuiTableColumn* column, int n)
+{
+    IM_ASSERT(n < column->SortDirectionsAvailCount);
+    return (column->SortDirectionsAvailList >> (n << 1)) & 0x03;
+}
+
+// Fix sort direction if currently set on a value which is unavailable (e.g. activating NoSortAscending/NoSortDescending)
+void ImGui::TableFixColumnSortDirection(ImGuiTable* table, ImGuiTableColumn* column)
+{
+    if (column->SortOrder == -1 || (column->SortDirectionsAvailMask & (1 << column->SortDirection)) != 0)
+        return;
+    column->SortDirection = (ImU8)TableGetColumnAvailSortDirection(column, 0);
+    table->IsSortSpecsDirty = true;
+}
+
+// Calculate next sort direction that would be set after clicking the column
+// - If the PreferSortDescending flag is set, we will default to a Descending direction on the first click.
+// - Note that the PreferSortAscending flag is never checked, it is essentially the default and therefore a no-op.
+IM_STATIC_ASSERT(ImGuiSortDirection_None == 0 && ImGuiSortDirection_Ascending == 1 && ImGuiSortDirection_Descending == 2);
+ImGuiSortDirection ImGui::TableGetColumnNextSortDirection(ImGuiTableColumn* column)
+{
+    IM_ASSERT(column->SortDirectionsAvailCount > 0);
+    if (column->SortOrder == -1)
+        return TableGetColumnAvailSortDirection(column, 0);
+    for (int n = 0; n < 3; n++)
+        if (column->SortDirection == TableGetColumnAvailSortDirection(column, n))
+            return TableGetColumnAvailSortDirection(column, (n + 1) % column->SortDirectionsAvailCount);
+    IM_ASSERT(0);
+    return ImGuiSortDirection_None;
+}
+
+// Note that the NoSortAscending/NoSortDescending flags are processed in TableSortSpecsSanitize(), and they may change/revert
+// the value of SortDirection. We could technically also do it here but it would be unnecessary and duplicate code.
+void ImGui::TableSetColumnSortDirection(int column_n, ImGuiSortDirection sort_direction, bool append_to_sort_specs)
+{
+    ImGuiContext& g = *GImGui;
+    ImGuiTable* table = g.CurrentTable;
+
+    if (!(table->Flags & ImGuiTableFlags_SortMulti))
+        append_to_sort_specs = false;
+    if (!(table->Flags & ImGuiTableFlags_SortTristate))
+        IM_ASSERT(sort_direction != ImGuiSortDirection_None);
+
+    ImGuiTableColumnIdx sort_order_max = 0;
+    if (append_to_sort_specs)
+        for (int other_column_n = 0; other_column_n < table->ColumnsCount; other_column_n++)
+            sort_order_max = ImMax(sort_order_max, table->Columns[other_column_n].SortOrder);
+
+    ImGuiTableColumn* column = &table->Columns[column_n];
+    column->SortDirection = (ImU8)sort_direction;
+    if (column->SortDirection == ImGuiSortDirection_None)
+        column->SortOrder = -1;
+    else if (column->SortOrder == -1 || !append_to_sort_specs)
+        column->SortOrder = append_to_sort_specs ? sort_order_max + 1 : 0;
+
+    for (int other_column_n = 0; other_column_n < table->ColumnsCount; other_column_n++)
+    {
+        ImGuiTableColumn* other_column = &table->Columns[other_column_n];
+        if (other_column != column && !append_to_sort_specs)
+            other_column->SortOrder = -1;
+        TableFixColumnSortDirection(table, other_column);
+    }
+    table->IsSettingsDirty = true;
+    table->IsSortSpecsDirty = true;
+}
+
+void ImGui::TableSortSpecsSanitize(ImGuiTable* table)
+{
+    IM_ASSERT(table->Flags & ImGuiTableFlags_Sortable);
+
+    // Clear SortOrder from hidden column and verify that there's no gap or duplicate.
+    int sort_order_count = 0;
+    ImU64 sort_order_mask = 0x00;
+    for (int column_n = 0; column_n < table->ColumnsCount; column_n++)
+    {
+        ImGuiTableColumn* column = &table->Columns[column_n];
+        if (column->SortOrder != -1 && !column->IsEnabled)
+            column->SortOrder = -1;
+        if (column->SortOrder == -1)
+            continue;
+        sort_order_count++;
+        sort_order_mask |= ((ImU64)1 << column->SortOrder);
+        IM_ASSERT(sort_order_count < (int)sizeof(sort_order_mask) * 8);
+    }
+
+    const bool need_fix_linearize = ((ImU64)1 << sort_order_count) != (sort_order_mask + 1);
+    const bool need_fix_single_sort_order = (sort_order_count > 1) && !(table->Flags & ImGuiTableFlags_SortMulti);
+    if (need_fix_linearize || need_fix_single_sort_order)
+    {
+        ImU64 fixed_mask = 0x00;
+        for (int sort_n = 0; sort_n < sort_order_count; sort_n++)
+        {
+            // Fix: Rewrite sort order fields if needed so they have no gap or duplicate.
+            // (e.g. SortOrder 0 disappeared, SortOrder 1..2 exists --> rewrite then as SortOrder 0..1)
+            int column_with_smallest_sort_order = -1;
+            for (int column_n = 0; column_n < table->ColumnsCount; column_n++)
+                if ((fixed_mask & ((ImU64)1 << (ImU64)column_n)) == 0 && table->Columns[column_n].SortOrder != -1)
+                    if (column_with_smallest_sort_order == -1 || table->Columns[column_n].SortOrder < table->Columns[column_with_smallest_sort_order].SortOrder)
+                        column_with_smallest_sort_order = column_n;
+            IM_ASSERT(column_with_smallest_sort_order != -1);
+            fixed_mask |= ((ImU64)1 << column_with_smallest_sort_order);
+            table->Columns[column_with_smallest_sort_order].SortOrder = (ImGuiTableColumnIdx)sort_n;
+
+            // Fix: Make sure only one column has a SortOrder if ImGuiTableFlags_MultiSortable is not set.
+            if (need_fix_single_sort_order)
+            {
+                sort_order_count = 1;
+                for (int column_n = 0; column_n < table->ColumnsCount; column_n++)
+                    if (column_n != column_with_smallest_sort_order)
+                        table->Columns[column_n].SortOrder = -1;
+                break;
+            }
+        }
+    }
+
+    // Fallback default sort order (if no column had the ImGuiTableColumnFlags_DefaultSort flag)
+    if (sort_order_count == 0 && !(table->Flags & ImGuiTableFlags_SortTristate))
+        for (int column_n = 0; column_n < table->ColumnsCount; column_n++)
+        {
+            ImGuiTableColumn* column = &table->Columns[column_n];
+            if (column->IsEnabled && !(column->Flags & ImGuiTableColumnFlags_NoSort))
+            {
+                sort_order_count = 1;
+                column->SortOrder = 0;
+                column->SortDirection = (ImU8)TableGetColumnAvailSortDirection(column, 0);
+                break;
+            }
+        }
+
+    table->SortSpecsCount = (ImGuiTableColumnIdx)sort_order_count;
+}
+
+void ImGui::TableSortSpecsBuild(ImGuiTable* table)
+{
+    bool dirty = table->IsSortSpecsDirty;
+    if (dirty)
+    {
+        TableSortSpecsSanitize(table);
+        table->SortSpecsMulti.resize(table->SortSpecsCount <= 1 ? 0 : table->SortSpecsCount);
+        table->SortSpecs.SpecsDirty = true; // Mark as dirty for user
+        table->IsSortSpecsDirty = false; // Mark as not dirty for us
+    }
+
+    // Write output
+    ImGuiTableColumnSortSpecs* sort_specs = (table->SortSpecsCount == 0) ? NULL : (table->SortSpecsCount == 1) ? &table->SortSpecsSingle : table->SortSpecsMulti.Data;
+    if (dirty && sort_specs != NULL)
+        for (int column_n = 0; column_n < table->ColumnsCount; column_n++)
+        {
+            ImGuiTableColumn* column = &table->Columns[column_n];
+            if (column->SortOrder == -1)
+                continue;
+            IM_ASSERT(column->SortOrder < table->SortSpecsCount);
+            ImGuiTableColumnSortSpecs* sort_spec = &sort_specs[column->SortOrder];
+            sort_spec->ColumnUserID = column->UserID;
+            sort_spec->ColumnIndex = (ImGuiTableColumnIdx)column_n;
+            sort_spec->SortOrder = (ImGuiTableColumnIdx)column->SortOrder;
+            sort_spec->SortDirection = column->SortDirection;
+        }
+
+    table->SortSpecs.Specs = sort_specs;
+    table->SortSpecs.SpecsCount = table->SortSpecsCount;
+}
+
+//-------------------------------------------------------------------------
+// [SECTION] Tables: Headers
+//-------------------------------------------------------------------------
+// - TableGetHeaderRowHeight() [Internal]
+// - TableHeadersRow()
+// - TableHeader()
+//-------------------------------------------------------------------------
+
+float ImGui::TableGetHeaderRowHeight()
+{
+    // Caring for a minor edge case:
+    // Calculate row height, for the unlikely case that some labels may be taller than others.
+    // If we didn't do that, uneven header height would highlight but smaller one before the tallest wouldn't catch input for all height.
+    // In your custom header row you may omit this all together and just call TableNextRow() without a height...
+    float row_height = GetTextLineHeight();
+    int columns_count = TableGetColumnCount();
+    for (int column_n = 0; column_n < columns_count; column_n++)
+    {
+        ImGuiTableColumnFlags flags = TableGetColumnFlags(column_n);
+        if ((flags & ImGuiTableColumnFlags_IsEnabled) && !(flags & ImGuiTableColumnFlags_NoHeaderLabel))
+            row_height = ImMax(row_height, CalcTextSize(TableGetColumnName(column_n)).y);
+    }
+    row_height += GetStyle().CellPadding.y * 2.0f;
+    return row_height;
+}
+
+// [Public] This is a helper to output TableHeader() calls based on the column names declared in TableSetupColumn().
+// The intent is that advanced users willing to create customized headers would not need to use this helper
+// and can create their own! For example: TableHeader() may be preceeded by Checkbox() or other custom widgets.
+// See 'Demo->Tables->Custom headers' for a demonstration of implementing a custom version of this.
+// This code is constructed to not make much use of internal functions, as it is intended to be a template to copy.
+// FIXME-TABLE: TableOpenContextMenu() and TableGetHeaderRowHeight() are not public.
+void ImGui::TableHeadersRow()
+{
+    ImGuiContext& g = *GImGui;
+    ImGuiTable* table = g.CurrentTable;
+    IM_ASSERT(table != NULL && "Need to call TableHeadersRow() after BeginTable()!");
+
+    // Layout if not already done (this is automatically done by TableNextRow, we do it here solely to facilitate stepping in debugger as it is frequent to step in TableUpdateLayout)
+    if (!table->IsLayoutLocked)
+        TableUpdateLayout(table);
+
+    // Open row
+    const float row_y1 = GetCursorScreenPos().y;
+    const float row_height = TableGetHeaderRowHeight();
+    TableNextRow(ImGuiTableRowFlags_Headers, row_height);
+    if (table->HostSkipItems) // Merely an optimization, you may skip in your own code.
+        return;
+
+    const int columns_count = TableGetColumnCount();
+    for (int column_n = 0; column_n < columns_count; column_n++)
+    {
+        if (!TableSetColumnIndex(column_n))
+            continue;
+
+        // Push an id to allow unnamed labels (generally accidental, but let's behave nicely with them)
+        // - in your own code you may omit the PushID/PopID all-together, provided you know they won't collide
+        // - table->InstanceCurrent is only >0 when we use multiple BeginTable/EndTable calls with same identifier.
+        const char* name = (TableGetColumnFlags(column_n) & ImGuiTableColumnFlags_NoHeaderLabel) ? "" : TableGetColumnName(column_n);
+        PushID(table->InstanceCurrent * table->ColumnsCount + column_n);
+        TableHeader(name);
+        PopID();
+    }
+
+    // Allow opening popup from the right-most section after the last column.
+    ImVec2 mouse_pos = ImGui::GetMousePos();
+    if (IsMouseReleased(1) && TableGetHoveredColumn() == columns_count)
+        if (mouse_pos.y >= row_y1 && mouse_pos.y < row_y1 + row_height)
+            TableOpenContextMenu(-1); // Will open a non-column-specific popup.
+}
+
+// Emit a column header (text + optional sort order)
+// We cpu-clip text here so that all columns headers can be merged into a same draw call.
+// Note that because of how we cpu-clip and display sorting indicators, you _cannot_ use SameLine() after a TableHeader()
+void ImGui::TableHeader(const char* label)
+{
+    ImGuiContext& g = *GImGui;
+    ImGuiWindow* window = g.CurrentWindow;
+    if (window->SkipItems)
+        return;
+
+    ImGuiTable* table = g.CurrentTable;
+    IM_ASSERT(table != NULL && "Need to call TableHeader() after BeginTable()!");
+    IM_ASSERT(table->CurrentColumn != -1);
+    const int column_n = table->CurrentColumn;
+    ImGuiTableColumn* column = &table->Columns[column_n];
+
+    // Label
+    if (label == NULL)
+        label = "";
+    const char* label_end = FindRenderedTextEnd(label);
+    ImVec2 label_size = CalcTextSize(label, label_end, true);
+    ImVec2 label_pos = window->DC.CursorPos;
+
+    // If we already got a row height, there's use that.
+    // FIXME-TABLE: Padding problem if the correct outer-padding CellBgRect strays off our ClipRect?
+    ImRect cell_r = TableGetCellBgRect(table, column_n);
+    float label_height = ImMax(label_size.y, table->RowMinHeight - table->CellPaddingY * 2.0f);
+
+    // Calculate ideal size for sort order arrow
+    float w_arrow = 0.0f;
+    float w_sort_text = 0.0f;
+    char sort_order_suf[4] = "";
+    const float ARROW_SCALE = 0.65f;
+    if ((table->Flags & ImGuiTableFlags_Sortable) && !(column->Flags & ImGuiTableColumnFlags_NoSort))
+    {
+        w_arrow = ImFloor(g.FontSize * ARROW_SCALE + g.Style.FramePadding.x);
+        if (column->SortOrder > 0)
+        {
+            ImFormatString(sort_order_suf, IM_ARRAYSIZE(sort_order_suf), "%d", column->SortOrder + 1);
+            w_sort_text = g.Style.ItemInnerSpacing.x + CalcTextSize(sort_order_suf).x;
+        }
+    }
+
+    // We feed our unclipped width to the column without writing on CursorMaxPos, so that column is still considering for merging.
+    float max_pos_x = label_pos.x + label_size.x + w_sort_text + w_arrow;
+    column->ContentMaxXHeadersUsed = ImMax(column->ContentMaxXHeadersUsed, column->WorkMaxX);
+    column->ContentMaxXHeadersIdeal = ImMax(column->ContentMaxXHeadersIdeal, max_pos_x);
+
+    // Keep header highlighted when context menu is open.
+    const bool selected = (table->IsContextPopupOpen && table->ContextPopupColumn == column_n && table->InstanceInteracted == table->InstanceCurrent);
+    ImGuiID id = window->GetID(label);
+    ImRect bb(cell_r.Min.x, cell_r.Min.y, cell_r.Max.x, ImMax(cell_r.Max.y, cell_r.Min.y + label_height + g.Style.CellPadding.y * 2.0f));
+    ItemSize(ImVec2(0.0f, label_height)); // Don't declare unclipped width, it'll be fed ContentMaxPosHeadersIdeal
+    if (!ItemAdd(bb, id))
+        return;
+
+    //GetForegroundDrawList()->AddRect(cell_r.Min, cell_r.Max, IM_COL32(255, 0, 0, 255)); // [DEBUG]
+    //GetForegroundDrawList()->AddRect(bb.Min, bb.Max, IM_COL32(255, 0, 0, 255)); // [DEBUG]
+
+    // Using AllowItemOverlap mode because we cover the whole cell, and we want user to be able to submit subsequent items.
+    bool hovered, held;
+    bool pressed = ButtonBehavior(bb, id, &hovered, &held, ImGuiButtonFlags_AllowItemOverlap);
+    if (g.ActiveId != id)
+        SetItemAllowOverlap();
+    if (held || hovered || selected)
+    {
+        const ImU32 col = GetColorU32(held ? ImGuiCol_HeaderActive : hovered ? ImGuiCol_HeaderHovered : ImGuiCol_Header);
+        //RenderFrame(bb.Min, bb.Max, col, false, 0.0f);
+        TableSetBgColor(ImGuiTableBgTarget_CellBg, col, table->CurrentColumn);
+    }
+    else
+    {
+        // Submit single cell bg color in the case we didn't submit a full header row
+        if ((table->RowFlags & ImGuiTableRowFlags_Headers) == 0)
+            TableSetBgColor(ImGuiTableBgTarget_CellBg, GetColorU32(ImGuiCol_TableHeaderBg), table->CurrentColumn);
+    }
+    RenderNavHighlight(bb, id, ImGuiNavHighlightFlags_TypeThin | ImGuiNavHighlightFlags_NoRounding);
+    if (held)
+        table->HeldHeaderColumn = (ImGuiTableColumnIdx)column_n;
+    window->DC.CursorPos.y -= g.Style.ItemSpacing.y * 0.5f;
+
+    // Drag and drop to re-order columns.
+    // FIXME-TABLE: Scroll request while reordering a column and it lands out of the scrolling zone.
+    if (held && (table->Flags & ImGuiTableFlags_Reorderable) && IsMouseDragging(0) && !g.DragDropActive)
+    {
+        // While moving a column it will jump on the other side of the mouse, so we also test for MouseDelta.x
+        table->ReorderColumn = (ImGuiTableColumnIdx)column_n;
+        table->InstanceInteracted = table->InstanceCurrent;
+
+        // We don't reorder: through the frozen<>unfrozen line, or through a column that is marked with ImGuiTableColumnFlags_NoReorder.
+        if (g.IO.MouseDelta.x < 0.0f && g.IO.MousePos.x < cell_r.Min.x)
+            if (ImGuiTableColumn* prev_column = (column->PrevEnabledColumn != -1) ? &table->Columns[column->PrevEnabledColumn] : NULL)
+                if (!((column->Flags | prev_column->Flags) & ImGuiTableColumnFlags_NoReorder))
+                    if ((column->IndexWithinEnabledSet < table->FreezeColumnsRequest) == (prev_column->IndexWithinEnabledSet < table->FreezeColumnsRequest))
+                        table->ReorderColumnDir = -1;
+        if (g.IO.MouseDelta.x > 0.0f && g.IO.MousePos.x > cell_r.Max.x)
+            if (ImGuiTableColumn* next_column = (column->NextEnabledColumn != -1) ? &table->Columns[column->NextEnabledColumn] : NULL)
+                if (!((column->Flags | next_column->Flags) & ImGuiTableColumnFlags_NoReorder))
+                    if ((column->IndexWithinEnabledSet < table->FreezeColumnsRequest) == (next_column->IndexWithinEnabledSet < table->FreezeColumnsRequest))
+                        table->ReorderColumnDir = +1;
+    }
+
+    // Sort order arrow
+    const float ellipsis_max = cell_r.Max.x - w_arrow - w_sort_text;
+    if ((table->Flags & ImGuiTableFlags_Sortable) && !(column->Flags & ImGuiTableColumnFlags_NoSort))
+    {
+        if (column->SortOrder != -1)
+        {
+            float x = ImMax(cell_r.Min.x, cell_r.Max.x - w_arrow - w_sort_text);
+            float y = label_pos.y;
+            if (column->SortOrder > 0)
+            {
+                PushStyleColor(ImGuiCol_Text, GetColorU32(ImGuiCol_Text, 0.70f));
+                RenderText(ImVec2(x + g.Style.ItemInnerSpacing.x, y), sort_order_suf);
+                PopStyleColor();
+                x += w_sort_text;
+            }
+            RenderArrow(window->DrawList, ImVec2(x, y), GetColorU32(ImGuiCol_Text), column->SortDirection == ImGuiSortDirection_Ascending ? ImGuiDir_Up : ImGuiDir_Down, ARROW_SCALE);
+        }
+
+        // Handle clicking on column header to adjust Sort Order
+        if (pressed && table->ReorderColumn != column_n)
+        {
+            ImGuiSortDirection sort_direction = TableGetColumnNextSortDirection(column);
+            TableSetColumnSortDirection(column_n, sort_direction, g.IO.KeyShift);
+        }
+    }
+
+    // Render clipped label. Clipping here ensure that in the majority of situations, all our header cells will
+    // be merged into a single draw call.
+    //window->DrawList->AddCircleFilled(ImVec2(ellipsis_max, label_pos.y), 40, IM_COL32_WHITE);
+    RenderTextEllipsis(window->DrawList, label_pos, ImVec2(ellipsis_max, label_pos.y + label_height + g.Style.FramePadding.y), ellipsis_max, ellipsis_max, label, label_end, &label_size);
+
+    const bool text_clipped = label_size.x > (ellipsis_max - label_pos.x);
+    if (text_clipped && hovered && g.HoveredIdNotActiveTimer > g.TooltipSlowDelay)
+        SetTooltip("%.*s", (int)(label_end - label), label);
+
+    // We don't use BeginPopupContextItem() because we want the popup to stay up even after the column is hidden
+    if (IsMouseReleased(1) && IsItemHovered())
+        TableOpenContextMenu(column_n);
+}
+
+//-------------------------------------------------------------------------
+// [SECTION] Tables: Context Menu
+//-------------------------------------------------------------------------
+// - TableOpenContextMenu() [Internal]
+// - TableDrawContextMenu() [Internal]
+//-------------------------------------------------------------------------
+
+// Use -1 to open menu not specific to a given column.
+void ImGui::TableOpenContextMenu(int column_n)
+{
+    ImGuiContext& g = *GImGui;
+    ImGuiTable* table = g.CurrentTable;
+    if (column_n == -1 && table->CurrentColumn != -1)   // When called within a column automatically use this one (for consistency)
+        column_n = table->CurrentColumn;
+    if (column_n == table->ColumnsCount)                // To facilitate using with TableGetHoveredColumn()
+        column_n = -1;
+    IM_ASSERT(column_n >= -1 && column_n < table->ColumnsCount);
+    if (table->Flags & (ImGuiTableFlags_Resizable | ImGuiTableFlags_Reorderable | ImGuiTableFlags_Hideable))
+    {
+        table->IsContextPopupOpen = true;
+        table->ContextPopupColumn = (ImGuiTableColumnIdx)column_n;
+        table->InstanceInteracted = table->InstanceCurrent;
+        const ImGuiID context_menu_id = ImHashStr("##ContextMenu", 0, table->ID);
+        OpenPopupEx(context_menu_id, ImGuiPopupFlags_None);
+    }
+}
+
+// Output context menu into current window (generally a popup)
+// FIXME-TABLE: Ideally this should be writable by the user. Full programmatic access to that data?
+void ImGui::TableDrawContextMenu(ImGuiTable* table)
+{
+    ImGuiContext& g = *GImGui;
+    ImGuiWindow* window = g.CurrentWindow;
+    if (window->SkipItems)
+        return;
+
+    bool want_separator = false;
+    const int column_n = (table->ContextPopupColumn >= 0 && table->ContextPopupColumn < table->ColumnsCount) ? table->ContextPopupColumn : -1;
+    ImGuiTableColumn* column = (column_n != -1) ? &table->Columns[column_n] : NULL;
+
+    // Sizing
+    if (table->Flags & ImGuiTableFlags_Resizable)
+    {
+        if (column != NULL)
+        {
+            const bool can_resize = !(column->Flags & ImGuiTableColumnFlags_NoResize) && column->IsEnabled;
+            if (MenuItem("Size column to fit###SizeOne", NULL, false, can_resize))
+                TableSetColumnWidthAutoSingle(table, column_n);
+        }
+
+        const char* size_all_desc;
+        if (table->ColumnsEnabledFixedCount == table->ColumnsEnabledCount && (table->Flags & ImGuiTableFlags_SizingMask_) != ImGuiTableFlags_SizingFixedSame)
+            size_all_desc = "Size all columns to fit###SizeAll";        // All fixed
+        else
+            size_all_desc = "Size all columns to default###SizeAll";    // All stretch or mixed
+        if (MenuItem(size_all_desc, NULL))
+            TableSetColumnWidthAutoAll(table);
+        want_separator = true;
+    }
+
+    // Ordering
+    if (table->Flags & ImGuiTableFlags_Reorderable)
+    {
+        if (MenuItem("Reset order", NULL, false, !table->IsDefaultDisplayOrder))
+            table->IsResetDisplayOrderRequest = true;
+        want_separator = true;
+    }
+
+    // Reset all (should work but seems unnecessary/noisy to expose?)
+    //if (MenuItem("Reset all"))
+    //    table->IsResetAllRequest = true;
+
+    // Sorting
+    // (modify TableOpenContextMenu() to add _Sortable flag if enabling this)
+#if 0
+    if ((table->Flags & ImGuiTableFlags_Sortable) && column != NULL && (column->Flags & ImGuiTableColumnFlags_NoSort) == 0)
+    {
+        if (want_separator)
+            Separator();
+        want_separator = true;
+
+        bool append_to_sort_specs = g.IO.KeyShift;
+        if (MenuItem("Sort in Ascending Order", NULL, column->SortOrder != -1 && column->SortDirection == ImGuiSortDirection_Ascending, (column->Flags & ImGuiTableColumnFlags_NoSortAscending) == 0))
+            TableSetColumnSortDirection(table, column_n, ImGuiSortDirection_Ascending, append_to_sort_specs);
+        if (MenuItem("Sort in Descending Order", NULL, column->SortOrder != -1 && column->SortDirection == ImGuiSortDirection_Descending, (column->Flags & ImGuiTableColumnFlags_NoSortDescending) == 0))
+            TableSetColumnSortDirection(table, column_n, ImGuiSortDirection_Descending, append_to_sort_specs);
+    }
+#endif
+
+    // Hiding / Visibility
+    if (table->Flags & ImGuiTableFlags_Hideable)
+    {
+        if (want_separator)
+            Separator();
+        want_separator = true;
+
+        PushItemFlag(ImGuiItemFlags_SelectableDontClosePopup, true);
+        for (int other_column_n = 0; other_column_n < table->ColumnsCount; other_column_n++)
+        {
+            ImGuiTableColumn* other_column = &table->Columns[other_column_n];
+            if (other_column->Flags & ImGuiTableColumnFlags_Disabled)
+                continue;
+
+            const char* name = TableGetColumnName(table, other_column_n);
+            if (name == NULL || name[0] == 0)
+                name = "<Unknown>";
+
+            // Make sure we can't hide the last active column
+            bool menu_item_active = (other_column->Flags & ImGuiTableColumnFlags_NoHide) ? false : true;
+            if (other_column->IsUserEnabled && table->ColumnsEnabledCount <= 1)
+                menu_item_active = false;
+            if (MenuItem(name, NULL, other_column->IsUserEnabled, menu_item_active))
+                other_column->IsUserEnabledNextFrame = !other_column->IsUserEnabled;
+        }
+        PopItemFlag();
+    }
+}
+
+//-------------------------------------------------------------------------
+// [SECTION] Tables: Settings (.ini data)
+//-------------------------------------------------------------------------
+// FIXME: The binding/finding/creating flow are too confusing.
+//-------------------------------------------------------------------------
+// - TableSettingsInit() [Internal]
+// - TableSettingsCalcChunkSize() [Internal]
+// - TableSettingsCreate() [Internal]
+// - TableSettingsFindByID() [Internal]
+// - TableGetBoundSettings() [Internal]
+// - TableResetSettings()
+// - TableSaveSettings() [Internal]
+// - TableLoadSettings() [Internal]
+// - TableSettingsHandler_ClearAll() [Internal]
+// - TableSettingsHandler_ApplyAll() [Internal]
+// - TableSettingsHandler_ReadOpen() [Internal]
+// - TableSettingsHandler_ReadLine() [Internal]
+// - TableSettingsHandler_WriteAll() [Internal]
+// - TableSettingsInstallHandler() [Internal]
+//-------------------------------------------------------------------------
+// [Init] 1: TableSettingsHandler_ReadXXXX()   Load and parse .ini file into TableSettings.
+// [Main] 2: TableLoadSettings()               When table is created, bind Table to TableSettings, serialize TableSettings data into Table.
+// [Main] 3: TableSaveSettings()               When table properties are modified, serialize Table data into bound or new TableSettings, mark .ini as dirty.
+// [Main] 4: TableSettingsHandler_WriteAll()   When .ini file is dirty (which can come from other source), save TableSettings into .ini file.
+//-------------------------------------------------------------------------
+
+// Clear and initialize empty settings instance
+static void TableSettingsInit(ImGuiTableSettings* settings, ImGuiID id, int columns_count, int columns_count_max)
+{
+    IM_PLACEMENT_NEW(settings) ImGuiTableSettings();
+    ImGuiTableColumnSettings* settings_column = settings->GetColumnSettings();
+    for (int n = 0; n < columns_count_max; n++, settings_column++)
+        IM_PLACEMENT_NEW(settings_column) ImGuiTableColumnSettings();
+    settings->ID = id;
+    settings->ColumnsCount = (ImGuiTableColumnIdx)columns_count;
+    settings->ColumnsCountMax = (ImGuiTableColumnIdx)columns_count_max;
+    settings->WantApply = true;
+}
+
+static size_t TableSettingsCalcChunkSize(int columns_count)
+{
+    return sizeof(ImGuiTableSettings) + (size_t)columns_count * sizeof(ImGuiTableColumnSettings);
+}
+
+ImGuiTableSettings* ImGui::TableSettingsCreate(ImGuiID id, int columns_count)
+{
+    ImGuiContext& g = *GImGui;
+    ImGuiTableSettings* settings = g.SettingsTables.alloc_chunk(TableSettingsCalcChunkSize(columns_count));
+    TableSettingsInit(settings, id, columns_count, columns_count);
+    return settings;
+}
+
+// Find existing settings
+ImGuiTableSettings* ImGui::TableSettingsFindByID(ImGuiID id)
+{
+    // FIXME-OPT: Might want to store a lookup map for this?
+    ImGuiContext& g = *GImGui;
+    for (ImGuiTableSettings* settings = g.SettingsTables.begin(); settings != NULL; settings = g.SettingsTables.next_chunk(settings))
+        if (settings->ID == id)
+            return settings;
+    return NULL;
+}
+
+// Get settings for a given table, NULL if none
+ImGuiTableSettings* ImGui::TableGetBoundSettings(ImGuiTable* table)
+{
+    if (table->SettingsOffset != -1)
+    {
+        ImGuiContext& g = *GImGui;
+        ImGuiTableSettings* settings = g.SettingsTables.ptr_from_offset(table->SettingsOffset);
+        IM_ASSERT(settings->ID == table->ID);
+        if (settings->ColumnsCountMax >= table->ColumnsCount)
+            return settings; // OK
+        settings->ID = 0; // Invalidate storage, we won't fit because of a count change
+    }
+    return NULL;
+}
+
+// Restore initial state of table (with or without saved settings)
+void ImGui::TableResetSettings(ImGuiTable* table)
+{
+    table->IsInitializing = table->IsSettingsDirty = true;
+    table->IsResetAllRequest = false;
+    table->IsSettingsRequestLoad = false;                   // Don't reload from ini
+    table->SettingsLoadedFlags = ImGuiTableFlags_None;      // Mark as nothing loaded so our initialized data becomes authoritative
+}
+
+void ImGui::TableSaveSettings(ImGuiTable* table)
+{
+    table->IsSettingsDirty = false;
+    if (table->Flags & ImGuiTableFlags_NoSavedSettings)
+        return;
+
+    // Bind or create settings data
+    ImGuiContext& g = *GImGui;
+    ImGuiTableSettings* settings = TableGetBoundSettings(table);
+    if (settings == NULL)
+    {
+        settings = TableSettingsCreate(table->ID, table->ColumnsCount);
+        table->SettingsOffset = g.SettingsTables.offset_from_ptr(settings);
+    }
+    settings->ColumnsCount = (ImGuiTableColumnIdx)table->ColumnsCount;
+
+    // Serialize ImGuiTable/ImGuiTableColumn into ImGuiTableSettings/ImGuiTableColumnSettings
+    IM_ASSERT(settings->ID == table->ID);
+    IM_ASSERT(settings->ColumnsCount == table->ColumnsCount && settings->ColumnsCountMax >= settings->ColumnsCount);
+    ImGuiTableColumn* column = table->Columns.Data;
+    ImGuiTableColumnSettings* column_settings = settings->GetColumnSettings();
+
+    bool save_ref_scale = false;
+    settings->SaveFlags = ImGuiTableFlags_None;
+    for (int n = 0; n < table->ColumnsCount; n++, column++, column_settings++)
+    {
+        const float width_or_weight = (column->Flags & ImGuiTableColumnFlags_WidthStretch) ? column->StretchWeight : column->WidthRequest;
+        column_settings->WidthOrWeight = width_or_weight;
+        column_settings->Index = (ImGuiTableColumnIdx)n;
+        column_settings->DisplayOrder = column->DisplayOrder;
+        column_settings->SortOrder = column->SortOrder;
+        column_settings->SortDirection = column->SortDirection;
+        column_settings->IsEnabled = column->IsUserEnabled;
+        column_settings->IsStretch = (column->Flags & ImGuiTableColumnFlags_WidthStretch) ? 1 : 0;
+        if ((column->Flags & ImGuiTableColumnFlags_WidthStretch) == 0)
+            save_ref_scale = true;
+
+        // We skip saving some data in the .ini file when they are unnecessary to restore our state.
+        // Note that fixed width where initial width was derived from auto-fit will always be saved as InitStretchWeightOrWidth will be 0.0f.
+        // FIXME-TABLE: We don't have logic to easily compare SortOrder to DefaultSortOrder yet so it's always saved when present.
+        if (width_or_weight != column->InitStretchWeightOrWidth)
+            settings->SaveFlags |= ImGuiTableFlags_Resizable;
+        if (column->DisplayOrder != n)
+            settings->SaveFlags |= ImGuiTableFlags_Reorderable;
+        if (column->SortOrder != -1)
+            settings->SaveFlags |= ImGuiTableFlags_Sortable;
+        if (column->IsUserEnabled != ((column->Flags & ImGuiTableColumnFlags_DefaultHide) == 0))
+            settings->SaveFlags |= ImGuiTableFlags_Hideable;
+    }
+    settings->SaveFlags &= table->Flags;
+    settings->RefScale = save_ref_scale ? table->RefScale : 0.0f;
+
+    MarkIniSettingsDirty();
+}
+
+void ImGui::TableLoadSettings(ImGuiTable* table)
+{
+    ImGuiContext& g = *GImGui;
+    table->IsSettingsRequestLoad = false;
+    if (table->Flags & ImGuiTableFlags_NoSavedSettings)
+        return;
+
+    // Bind settings
+    ImGuiTableSettings* settings;
+    if (table->SettingsOffset == -1)
+    {
+        settings = TableSettingsFindByID(table->ID);
+        if (settings == NULL)
+            return;
+        if (settings->ColumnsCount != table->ColumnsCount) // Allow settings if columns count changed. We could otherwise decide to return...
+            table->IsSettingsDirty = true;
+        table->SettingsOffset = g.SettingsTables.offset_from_ptr(settings);
+    }
+    else
+    {
+        settings = TableGetBoundSettings(table);
+    }
+
+    table->SettingsLoadedFlags = settings->SaveFlags;
+    table->RefScale = settings->RefScale;
+
+    // Serialize ImGuiTableSettings/ImGuiTableColumnSettings into ImGuiTable/ImGuiTableColumn
+    ImGuiTableColumnSettings* column_settings = settings->GetColumnSettings();
+    ImU64 display_order_mask = 0;
+    for (int data_n = 0; data_n < settings->ColumnsCount; data_n++, column_settings++)
+    {
+        int column_n = column_settings->Index;
+        if (column_n < 0 || column_n >= table->ColumnsCount)
+            continue;
+
+        ImGuiTableColumn* column = &table->Columns[column_n];
+        if (settings->SaveFlags & ImGuiTableFlags_Resizable)
+        {
+            if (column_settings->IsStretch)
+                column->StretchWeight = column_settings->WidthOrWeight;
+            else
+                column->WidthRequest = column_settings->WidthOrWeight;
+            column->AutoFitQueue = 0x00;
+        }
+        if (settings->SaveFlags & ImGuiTableFlags_Reorderable)
+            column->DisplayOrder = column_settings->DisplayOrder;
+        else
+            column->DisplayOrder = (ImGuiTableColumnIdx)column_n;
+        display_order_mask |= (ImU64)1 << column->DisplayOrder;
+        column->IsUserEnabled = column->IsUserEnabledNextFrame = column_settings->IsEnabled;
+        column->SortOrder = column_settings->SortOrder;
+        column->SortDirection = column_settings->SortDirection;
+    }
+
+    // Validate and fix invalid display order data
+    const ImU64 expected_display_order_mask = (settings->ColumnsCount == 64) ? ~0 : ((ImU64)1 << settings->ColumnsCount) - 1;
+    if (display_order_mask != expected_display_order_mask)
+        for (int column_n = 0; column_n < table->ColumnsCount; column_n++)
+            table->Columns[column_n].DisplayOrder = (ImGuiTableColumnIdx)column_n;
+
+    // Rebuild index
+    for (int column_n = 0; column_n < table->ColumnsCount; column_n++)
+        table->DisplayOrderToIndex[table->Columns[column_n].DisplayOrder] = (ImGuiTableColumnIdx)column_n;
+}
+
+static void TableSettingsHandler_ClearAll(ImGuiContext* ctx, ImGuiSettingsHandler*)
+{
+    ImGuiContext& g = *ctx;
+    for (int i = 0; i != g.Tables.GetMapSize(); i++)
+        if (ImGuiTable* table = g.Tables.TryGetMapData(i))
+            table->SettingsOffset = -1;
+    g.SettingsTables.clear();
+}
+
+// Apply to existing windows (if any)
+static void TableSettingsHandler_ApplyAll(ImGuiContext* ctx, ImGuiSettingsHandler*)
+{
+    ImGuiContext& g = *ctx;
+    for (int i = 0; i != g.Tables.GetMapSize(); i++)
+        if (ImGuiTable* table = g.Tables.TryGetMapData(i))
+        {
+            table->IsSettingsRequestLoad = true;
+            table->SettingsOffset = -1;
+        }
+}
+
+static void* TableSettingsHandler_ReadOpen(ImGuiContext*, ImGuiSettingsHandler*, const char* name)
+{
+    ImGuiID id = 0;
+    int columns_count = 0;
+    if (sscanf(name, "0x%08X,%d", &id, &columns_count) < 2)
+        return NULL;
+
+    if (ImGuiTableSettings* settings = ImGui::TableSettingsFindByID(id))
+    {
+        if (settings->ColumnsCountMax >= columns_count)
+        {
+            TableSettingsInit(settings, id, columns_count, settings->ColumnsCountMax); // Recycle
+            return settings;
+        }
+        settings->ID = 0; // Invalidate storage, we won't fit because of a count change
+    }
+    return ImGui::TableSettingsCreate(id, columns_count);
+}
+
+static void TableSettingsHandler_ReadLine(ImGuiContext*, ImGuiSettingsHandler*, void* entry, const char* line)
+{
+    // "Column 0  UserID=0x42AD2D21 Width=100 Visible=1 Order=0 Sort=0v"
+    ImGuiTableSettings* settings = (ImGuiTableSettings*)entry;
+    float f = 0.0f;
+    int column_n = 0, r = 0, n = 0;
+
+    if (sscanf(line, "RefScale=%f", &f) == 1) { settings->RefScale = f; return; }
+
+    if (sscanf(line, "Column %d%n", &column_n, &r) == 1)
+    {
+        if (column_n < 0 || column_n >= settings->ColumnsCount)
+            return;
+        line = ImStrSkipBlank(line + r);
+        char c = 0;
+        ImGuiTableColumnSettings* column = settings->GetColumnSettings() + column_n;
+        column->Index = (ImGuiTableColumnIdx)column_n;
+        if (sscanf(line, "UserID=0x%08X%n", (ImU32*)&n, &r)==1) { line = ImStrSkipBlank(line + r); column->UserID = (ImGuiID)n; }
+        if (sscanf(line, "Width=%d%n", &n, &r) == 1)            { line = ImStrSkipBlank(line + r); column->WidthOrWeight = (float)n; column->IsStretch = 0; settings->SaveFlags |= ImGuiTableFlags_Resizable; }
+        if (sscanf(line, "Weight=%f%n", &f, &r) == 1)           { line = ImStrSkipBlank(line + r); column->WidthOrWeight = f; column->IsStretch = 1; settings->SaveFlags |= ImGuiTableFlags_Resizable; }
+        if (sscanf(line, "Visible=%d%n", &n, &r) == 1)          { line = ImStrSkipBlank(line + r); column->IsEnabled = (ImU8)n; settings->SaveFlags |= ImGuiTableFlags_Hideable; }
+        if (sscanf(line, "Order=%d%n", &n, &r) == 1)            { line = ImStrSkipBlank(line + r); column->DisplayOrder = (ImGuiTableColumnIdx)n; settings->SaveFlags |= ImGuiTableFlags_Reorderable; }
+        if (sscanf(line, "Sort=%d%c%n", &n, &c, &r) == 2)       { line = ImStrSkipBlank(line + r); column->SortOrder = (ImGuiTableColumnIdx)n; column->SortDirection = (c == '^') ? ImGuiSortDirection_Descending : ImGuiSortDirection_Ascending; settings->SaveFlags |= ImGuiTableFlags_Sortable; }
+    }
+}
+
+static void TableSettingsHandler_WriteAll(ImGuiContext* ctx, ImGuiSettingsHandler* handler, ImGuiTextBuffer* buf)
+{
+    ImGuiContext& g = *ctx;
+    for (ImGuiTableSettings* settings = g.SettingsTables.begin(); settings != NULL; settings = g.SettingsTables.next_chunk(settings))
+    {
+        if (settings->ID == 0) // Skip ditched settings
+            continue;
+
+        // TableSaveSettings() may clear some of those flags when we establish that the data can be stripped
+        // (e.g. Order was unchanged)
+        const bool save_size    = (settings->SaveFlags & ImGuiTableFlags_Resizable) != 0;
+        const bool save_visible = (settings->SaveFlags & ImGuiTableFlags_Hideable) != 0;
+        const bool save_order   = (settings->SaveFlags & ImGuiTableFlags_Reorderable) != 0;
+        const bool save_sort    = (settings->SaveFlags & ImGuiTableFlags_Sortable) != 0;
+        if (!save_size && !save_visible && !save_order && !save_sort)
+            continue;
+
+        buf->reserve(buf->size() + 30 + settings->ColumnsCount * 50); // ballpark reserve
+        buf->appendf("[%s][0x%08X,%d]\n", handler->TypeName, settings->ID, settings->ColumnsCount);
+        if (settings->RefScale != 0.0f)
+            buf->appendf("RefScale=%g\n", settings->RefScale);
+        ImGuiTableColumnSettings* column = settings->GetColumnSettings();
+        for (int column_n = 0; column_n < settings->ColumnsCount; column_n++, column++)
+        {
+            // "Column 0  UserID=0x42AD2D21 Width=100 Visible=1 Order=0 Sort=0v"
+            bool save_column = column->UserID != 0 || save_size || save_visible || save_order || (save_sort && column->SortOrder != -1);
+            if (!save_column)
+                continue;
+            buf->appendf("Column %-2d", column_n);
+            if (column->UserID != 0)                    buf->appendf(" UserID=%08X", column->UserID);
+            if (save_size && column->IsStretch)         buf->appendf(" Weight=%.4f", column->WidthOrWeight);
+            if (save_size && !column->IsStretch)        buf->appendf(" Width=%d", (int)column->WidthOrWeight);
+            if (save_visible)                           buf->appendf(" Visible=%d", column->IsEnabled);
+            if (save_order)                             buf->appendf(" Order=%d", column->DisplayOrder);
+            if (save_sort && column->SortOrder != -1)   buf->appendf(" Sort=%d%c", column->SortOrder, (column->SortDirection == ImGuiSortDirection_Ascending) ? 'v' : '^');
+            buf->append("\n");
+        }
+        buf->append("\n");
+    }
+}
+
+void ImGui::TableSettingsAddSettingsHandler()
+{
+    ImGuiSettingsHandler ini_handler;
+    ini_handler.TypeName = "Table";
+    ini_handler.TypeHash = ImHashStr("Table");
+    ini_handler.ClearAllFn = TableSettingsHandler_ClearAll;
+    ini_handler.ReadOpenFn = TableSettingsHandler_ReadOpen;
+    ini_handler.ReadLineFn = TableSettingsHandler_ReadLine;
+    ini_handler.ApplyAllFn = TableSettingsHandler_ApplyAll;
+    ini_handler.WriteAllFn = TableSettingsHandler_WriteAll;
+    AddSettingsHandler(&ini_handler);
+}
+
+//-------------------------------------------------------------------------
+// [SECTION] Tables: Garbage Collection
+//-------------------------------------------------------------------------
+// - TableRemove() [Internal]
+// - TableGcCompactTransientBuffers() [Internal]
+// - TableGcCompactSettings() [Internal]
+//-------------------------------------------------------------------------
+
+// Remove Table (currently only used by TestEngine)
+void ImGui::TableRemove(ImGuiTable* table)
+{
+    //IMGUI_DEBUG_PRINT("TableRemove() id=0x%08X\n", table->ID);
+    ImGuiContext& g = *GImGui;
+    int table_idx = g.Tables.GetIndex(table);
+    //memset(table->RawData.Data, 0, table->RawData.size_in_bytes());
+    //memset(table, 0, sizeof(ImGuiTable));
+    g.Tables.Remove(table->ID, table);
+    g.TablesLastTimeActive[table_idx] = -1.0f;
+}
+
+// Free up/compact internal Table buffers for when it gets unused
+void ImGui::TableGcCompactTransientBuffers(ImGuiTable* table)
+{
+    //IMGUI_DEBUG_PRINT("TableGcCompactTransientBuffers() id=0x%08X\n", table->ID);
+    ImGuiContext& g = *GImGui;
+    IM_ASSERT(table->MemoryCompacted == false);
+    table->SortSpecs.Specs = NULL;
+    table->SortSpecsMulti.clear();
+    table->IsSortSpecsDirty = true; // FIXME: shouldn't have to leak into user performing a sort
+    table->ColumnsNames.clear();
+    table->MemoryCompacted = true;
+    for (int n = 0; n < table->ColumnsCount; n++)
+        table->Columns[n].NameOffset = -1;
+    g.TablesLastTimeActive[g.Tables.GetIndex(table)] = -1.0f;
+}
+
+void ImGui::TableGcCompactTransientBuffers(ImGuiTableTempData* temp_data)
+{
+    temp_data->DrawSplitter.ClearFreeMemory();
+    temp_data->LastTimeActive = -1.0f;
+}
+
+// Compact and remove unused settings data (currently only used by TestEngine)
+void ImGui::TableGcCompactSettings()
+{
+    ImGuiContext& g = *GImGui;
+    int required_memory = 0;
+    for (ImGuiTableSettings* settings = g.SettingsTables.begin(); settings != NULL; settings = g.SettingsTables.next_chunk(settings))
+        if (settings->ID != 0)
+            required_memory += (int)TableSettingsCalcChunkSize(settings->ColumnsCount);
+    if (required_memory == g.SettingsTables.Buf.Size)
+        return;
+    ImChunkStream<ImGuiTableSettings> new_chunk_stream;
+    new_chunk_stream.Buf.reserve(required_memory);
+    for (ImGuiTableSettings* settings = g.SettingsTables.begin(); settings != NULL; settings = g.SettingsTables.next_chunk(settings))
+        if (settings->ID != 0)
+            memcpy(new_chunk_stream.alloc_chunk(TableSettingsCalcChunkSize(settings->ColumnsCount)), settings, TableSettingsCalcChunkSize(settings->ColumnsCount));
+    g.SettingsTables.swap(new_chunk_stream);
+}
+
+
+//-------------------------------------------------------------------------
+// [SECTION] Tables: Debugging
+//-------------------------------------------------------------------------
+// - DebugNodeTable() [Internal]
+//-------------------------------------------------------------------------
+
+#ifndef IMGUI_DISABLE_DEBUG_TOOLS
+
+static const char* DebugNodeTableGetSizingPolicyDesc(ImGuiTableFlags sizing_policy)
+{
+    sizing_policy &= ImGuiTableFlags_SizingMask_;
+    if (sizing_policy == ImGuiTableFlags_SizingFixedFit)    { return "FixedFit"; }
+    if (sizing_policy == ImGuiTableFlags_SizingFixedSame)   { return "FixedSame"; }
+    if (sizing_policy == ImGuiTableFlags_SizingStretchProp) { return "StretchProp"; }
+    if (sizing_policy == ImGuiTableFlags_SizingStretchSame) { return "StretchSame"; }
+    return "N/A";
+}
+
+void ImGui::DebugNodeTable(ImGuiTable* table)
+{
+    char buf[512];
+    char* p = buf;
+    const char* buf_end = buf + IM_ARRAYSIZE(buf);
+    const bool is_active = (table->LastFrameActive >= ImGui::GetFrameCount() - 2); // Note that fully clipped early out scrolling tables will appear as inactive here.
+    ImFormatString(p, buf_end - p, "Table 0x%08X (%d columns, in '%s')%s", table->ID, table->ColumnsCount, table->OuterWindow->Name, is_active ? "" : " *Inactive*");
+    if (!is_active) { PushStyleColor(ImGuiCol_Text, GetStyleColorVec4(ImGuiCol_TextDisabled)); }
+    bool open = TreeNode(table, "%s", buf);
+    if (!is_active) { PopStyleColor(); }
+    if (IsItemHovered())
+        GetForegroundDrawList()->AddRect(table->OuterRect.Min, table->OuterRect.Max, IM_COL32(255, 255, 0, 255));
+    if (IsItemVisible() && table->HoveredColumnBody != -1)
+        GetForegroundDrawList()->AddRect(GetItemRectMin(), GetItemRectMax(), IM_COL32(255, 255, 0, 255));
+    if (!open)
+        return;
+    if (table->InstanceCurrent > 0)
+        ImGui::Text("** %d instances of same table! Some data below will refer to last instance.", table->InstanceCurrent + 1);
+    bool clear_settings = SmallButton("Clear settings");
+    BulletText("OuterRect: Pos: (%.1f,%.1f) Size: (%.1f,%.1f) Sizing: '%s'", table->OuterRect.Min.x, table->OuterRect.Min.y, table->OuterRect.GetWidth(), table->OuterRect.GetHeight(), DebugNodeTableGetSizingPolicyDesc(table->Flags));
+    BulletText("ColumnsGivenWidth: %.1f, ColumnsAutoFitWidth: %.1f, InnerWidth: %.1f%s", table->ColumnsGivenWidth, table->ColumnsAutoFitWidth, table->InnerWidth, table->InnerWidth == 0.0f ? " (auto)" : "");
+    BulletText("CellPaddingX: %.1f, CellSpacingX: %.1f/%.1f, OuterPaddingX: %.1f", table->CellPaddingX, table->CellSpacingX1, table->CellSpacingX2, table->OuterPaddingX);
+    BulletText("HoveredColumnBody: %d, HoveredColumnBorder: %d", table->HoveredColumnBody, table->HoveredColumnBorder);
+    BulletText("ResizedColumn: %d, ReorderColumn: %d, HeldHeaderColumn: %d", table->ResizedColumn, table->ReorderColumn, table->HeldHeaderColumn);
+    //BulletText("BgDrawChannels: %d/%d", 0, table->BgDrawChannelUnfrozen);
+    float sum_weights = 0.0f;
+    for (int n = 0; n < table->ColumnsCount; n++)
+        if (table->Columns[n].Flags & ImGuiTableColumnFlags_WidthStretch)
+            sum_weights += table->Columns[n].StretchWeight;
+    for (int n = 0; n < table->ColumnsCount; n++)
+    {
+        ImGuiTableColumn* column = &table->Columns[n];
+        const char* name = TableGetColumnName(table, n);
+        ImFormatString(buf, IM_ARRAYSIZE(buf),
+            "Column %d order %d '%s': offset %+.2f to %+.2f%s\n"
+            "Enabled: %d, VisibleX/Y: %d/%d, RequestOutput: %d, SkipItems: %d, DrawChannels: %d,%d\n"
+            "WidthGiven: %.1f, Request/Auto: %.1f/%.1f, StretchWeight: %.3f (%.1f%%)\n"
+            "MinX: %.1f, MaxX: %.1f (%+.1f), ClipRect: %.1f to %.1f (+%.1f)\n"
+            "ContentWidth: %.1f,%.1f, HeadersUsed/Ideal %.1f/%.1f\n"
+            "Sort: %d%s, UserID: 0x%08X, Flags: 0x%04X: %s%s%s..",
+            n, column->DisplayOrder, name, column->MinX - table->WorkRect.Min.x, column->MaxX - table->WorkRect.Min.x, (n < table->FreezeColumnsRequest) ? " (Frozen)" : "",
+            column->IsEnabled, column->IsVisibleX, column->IsVisibleY, column->IsRequestOutput, column->IsSkipItems, column->DrawChannelFrozen, column->DrawChannelUnfrozen,
+            column->WidthGiven, column->WidthRequest, column->WidthAuto, column->StretchWeight, column->StretchWeight > 0.0f ? (column->StretchWeight / sum_weights) * 100.0f : 0.0f,
+            column->MinX, column->MaxX, column->MaxX - column->MinX, column->ClipRect.Min.x, column->ClipRect.Max.x, column->ClipRect.Max.x - column->ClipRect.Min.x,
+            column->ContentMaxXFrozen - column->WorkMinX, column->ContentMaxXUnfrozen - column->WorkMinX, column->ContentMaxXHeadersUsed - column->WorkMinX, column->ContentMaxXHeadersIdeal - column->WorkMinX,
+            column->SortOrder, (column->SortDirection == ImGuiSortDirection_Ascending) ? " (Asc)" : (column->SortDirection == ImGuiSortDirection_Descending) ? " (Des)" : "", column->UserID, column->Flags,
+            (column->Flags & ImGuiTableColumnFlags_WidthStretch) ? "WidthStretch " : "",
+            (column->Flags & ImGuiTableColumnFlags_WidthFixed) ? "WidthFixed " : "",
+            (column->Flags & ImGuiTableColumnFlags_NoResize) ? "NoResize " : "");
+        Bullet();
+        Selectable(buf);
+        if (IsItemHovered())
+        {
+            ImRect r(column->MinX, table->OuterRect.Min.y, column->MaxX, table->OuterRect.Max.y);
+            GetForegroundDrawList()->AddRect(r.Min, r.Max, IM_COL32(255, 255, 0, 255));
+        }
+    }
+    if (ImGuiTableSettings* settings = TableGetBoundSettings(table))
+        DebugNodeTableSettings(settings);
+    if (clear_settings)
+        table->IsResetAllRequest = true;
+    TreePop();
+}
+
+void ImGui::DebugNodeTableSettings(ImGuiTableSettings* settings)
+{
+    if (!TreeNode((void*)(intptr_t)settings->ID, "Settings 0x%08X (%d columns)", settings->ID, settings->ColumnsCount))
+        return;
+    BulletText("SaveFlags: 0x%08X", settings->SaveFlags);
+    BulletText("ColumnsCount: %d (max %d)", settings->ColumnsCount, settings->ColumnsCountMax);
+    for (int n = 0; n < settings->ColumnsCount; n++)
+    {
+        ImGuiTableColumnSettings* column_settings = &settings->GetColumnSettings()[n];
+        ImGuiSortDirection sort_dir = (column_settings->SortOrder != -1) ? (ImGuiSortDirection)column_settings->SortDirection : ImGuiSortDirection_None;
+        BulletText("Column %d Order %d SortOrder %d %s Vis %d %s %7.3f UserID 0x%08X",
+            n, column_settings->DisplayOrder, column_settings->SortOrder,
+            (sort_dir == ImGuiSortDirection_Ascending) ? "Asc" : (sort_dir == ImGuiSortDirection_Descending) ? "Des" : "---",
+            column_settings->IsEnabled, column_settings->IsStretch ? "Weight" : "Width ", column_settings->WidthOrWeight, column_settings->UserID);
+    }
+    TreePop();
+}
+
+#else // #ifndef IMGUI_DISABLE_DEBUG_TOOLS
+
+void ImGui::DebugNodeTable(ImGuiTable*) {}
+void ImGui::DebugNodeTableSettings(ImGuiTableSettings*) {}
+
+#endif
+
+
+//-------------------------------------------------------------------------
+// [SECTION] Columns, BeginColumns, EndColumns, etc.
+// (This is a legacy API, prefer using BeginTable/EndTable!)
+//-------------------------------------------------------------------------
+// FIXME: sizing is lossy when columns width is very small (default width may turn negative etc.)
+//-------------------------------------------------------------------------
+// - SetWindowClipRectBeforeSetChannel() [Internal]
+// - GetColumnIndex()
+// - GetColumnsCount()
+// - GetColumnOffset()
+// - GetColumnWidth()
+// - SetColumnOffset()
+// - SetColumnWidth()
+// - PushColumnClipRect() [Internal]
+// - PushColumnsBackground() [Internal]
+// - PopColumnsBackground() [Internal]
+// - FindOrCreateColumns() [Internal]
+// - GetColumnsID() [Internal]
+// - BeginColumns()
+// - NextColumn()
+// - EndColumns()
+// - Columns()
+//-------------------------------------------------------------------------
+
+// [Internal] Small optimization to avoid calls to PopClipRect/SetCurrentChannel/PushClipRect in sequences,
+// they would meddle many times with the underlying ImDrawCmd.
+// Instead, we do a preemptive overwrite of clipping rectangle _without_ altering the command-buffer and let
+// the subsequent single call to SetCurrentChannel() does it things once.
+void ImGui::SetWindowClipRectBeforeSetChannel(ImGuiWindow* window, const ImRect& clip_rect)
+{
+    ImVec4 clip_rect_vec4 = clip_rect.ToVec4();
+    window->ClipRect = clip_rect;
+    window->DrawList->_CmdHeader.ClipRect = clip_rect_vec4;
+    window->DrawList->_ClipRectStack.Data[window->DrawList->_ClipRectStack.Size - 1] = clip_rect_vec4;
+}
+
+int ImGui::GetColumnIndex()
+{
+    ImGuiWindow* window = GetCurrentWindowRead();
+    return window->DC.CurrentColumns ? window->DC.CurrentColumns->Current : 0;
+}
+
+int ImGui::GetColumnsCount()
+{
+    ImGuiWindow* window = GetCurrentWindowRead();
+    return window->DC.CurrentColumns ? window->DC.CurrentColumns->Count : 1;
+}
+
+float ImGui::GetColumnOffsetFromNorm(const ImGuiOldColumns* columns, float offset_norm)
+{
+    return offset_norm * (columns->OffMaxX - columns->OffMinX);
+}
+
+float ImGui::GetColumnNormFromOffset(const ImGuiOldColumns* columns, float offset)
+{
+    return offset / (columns->OffMaxX - columns->OffMinX);
+}
+
+static const float COLUMNS_HIT_RECT_HALF_WIDTH = 4.0f;
+
+static float GetDraggedColumnOffset(ImGuiOldColumns* columns, int column_index)
+{
+    // Active (dragged) column always follow mouse. The reason we need this is that dragging a column to the right edge of an auto-resizing
+    // window creates a feedback loop because we store normalized positions. So while dragging we enforce absolute positioning.
+    ImGuiContext& g = *GImGui;
+    ImGuiWindow* window = g.CurrentWindow;
+    IM_ASSERT(column_index > 0); // We are not supposed to drag column 0.
+    IM_ASSERT(g.ActiveId == columns->ID + ImGuiID(column_index));
+
+    float x = g.IO.MousePos.x - g.ActiveIdClickOffset.x + COLUMNS_HIT_RECT_HALF_WIDTH - window->Pos.x;
+    x = ImMax(x, ImGui::GetColumnOffset(column_index - 1) + g.Style.ColumnsMinSpacing);
+    if ((columns->Flags & ImGuiOldColumnFlags_NoPreserveWidths))
+        x = ImMin(x, ImGui::GetColumnOffset(column_index + 1) - g.Style.ColumnsMinSpacing);
+
+    return x;
+}
+
+float ImGui::GetColumnOffset(int column_index)
+{
+    ImGuiWindow* window = GetCurrentWindowRead();
+    ImGuiOldColumns* columns = window->DC.CurrentColumns;
+    if (columns == NULL)
+        return 0.0f;
+
+    if (column_index < 0)
+        column_index = columns->Current;
+    IM_ASSERT(column_index < columns->Columns.Size);
+
+    const float t = columns->Columns[column_index].OffsetNorm;
+    const float x_offset = ImLerp(columns->OffMinX, columns->OffMaxX, t);
+    return x_offset;
+}
+
+static float GetColumnWidthEx(ImGuiOldColumns* columns, int column_index, bool before_resize = false)
+{
+    if (column_index < 0)
+        column_index = columns->Current;
+
+    float offset_norm;
+    if (before_resize)
+        offset_norm = columns->Columns[column_index + 1].OffsetNormBeforeResize - columns->Columns[column_index].OffsetNormBeforeResize;
+    else
+        offset_norm = columns->Columns[column_index + 1].OffsetNorm - columns->Columns[column_index].OffsetNorm;
+    return ImGui::GetColumnOffsetFromNorm(columns, offset_norm);
+}
+
+float ImGui::GetColumnWidth(int column_index)
+{
+    ImGuiContext& g = *GImGui;
+    ImGuiWindow* window = g.CurrentWindow;
+    ImGuiOldColumns* columns = window->DC.CurrentColumns;
+    if (columns == NULL)
+        return GetContentRegionAvail().x;
+
+    if (column_index < 0)
+        column_index = columns->Current;
+    return GetColumnOffsetFromNorm(columns, columns->Columns[column_index + 1].OffsetNorm - columns->Columns[column_index].OffsetNorm);
+}
+
+void ImGui::SetColumnOffset(int column_index, float offset)
+{
+    ImGuiContext& g = *GImGui;
+    ImGuiWindow* window = g.CurrentWindow;
+    ImGuiOldColumns* columns = window->DC.CurrentColumns;
+    IM_ASSERT(columns != NULL);
+
+    if (column_index < 0)
+        column_index = columns->Current;
+    IM_ASSERT(column_index < columns->Columns.Size);
+
+    const bool preserve_width = !(columns->Flags & ImGuiOldColumnFlags_NoPreserveWidths) && (column_index < columns->Count - 1);
+    const float width = preserve_width ? GetColumnWidthEx(columns, column_index, columns->IsBeingResized) : 0.0f;
+
+    if (!(columns->Flags & ImGuiOldColumnFlags_NoForceWithinWindow))
+        offset = ImMin(offset, columns->OffMaxX - g.Style.ColumnsMinSpacing * (columns->Count - column_index));
+    columns->Columns[column_index].OffsetNorm = GetColumnNormFromOffset(columns, offset - columns->OffMinX);
+
+    if (preserve_width)
+        SetColumnOffset(column_index + 1, offset + ImMax(g.Style.ColumnsMinSpacing, width));
+}
+
+void ImGui::SetColumnWidth(int column_index, float width)
+{
+    ImGuiWindow* window = GetCurrentWindowRead();
+    ImGuiOldColumns* columns = window->DC.CurrentColumns;
+    IM_ASSERT(columns != NULL);
+
+    if (column_index < 0)
+        column_index = columns->Current;
+    SetColumnOffset(column_index + 1, GetColumnOffset(column_index) + width);
+}
+
+void ImGui::PushColumnClipRect(int column_index)
+{
+    ImGuiWindow* window = GetCurrentWindowRead();
+    ImGuiOldColumns* columns = window->DC.CurrentColumns;
+    if (column_index < 0)
+        column_index = columns->Current;
+
+    ImGuiOldColumnData* column = &columns->Columns[column_index];
+    PushClipRect(column->ClipRect.Min, column->ClipRect.Max, false);
+}
+
+// Get into the columns background draw command (which is generally the same draw command as before we called BeginColumns)
+void ImGui::PushColumnsBackground()
+{
+    ImGuiWindow* window = GetCurrentWindowRead();
+    ImGuiOldColumns* columns = window->DC.CurrentColumns;
+    if (columns->Count == 1)
+        return;
+
+    // Optimization: avoid SetCurrentChannel() + PushClipRect()
+    columns->HostBackupClipRect = window->ClipRect;
+    SetWindowClipRectBeforeSetChannel(window, columns->HostInitialClipRect);
+    columns->Splitter.SetCurrentChannel(window->DrawList, 0);
+}
+
+void ImGui::PopColumnsBackground()
+{
+    ImGuiWindow* window = GetCurrentWindowRead();
+    ImGuiOldColumns* columns = window->DC.CurrentColumns;
+    if (columns->Count == 1)
+        return;
+
+    // Optimization: avoid PopClipRect() + SetCurrentChannel()
+    SetWindowClipRectBeforeSetChannel(window, columns->HostBackupClipRect);
+    columns->Splitter.SetCurrentChannel(window->DrawList, columns->Current + 1);
+}
+
+ImGuiOldColumns* ImGui::FindOrCreateColumns(ImGuiWindow* window, ImGuiID id)
+{
+    // We have few columns per window so for now we don't need bother much with turning this into a faster lookup.
+    for (int n = 0; n < window->ColumnsStorage.Size; n++)
+        if (window->ColumnsStorage[n].ID == id)
+            return &window->ColumnsStorage[n];
+
+    window->ColumnsStorage.push_back(ImGuiOldColumns());
+    ImGuiOldColumns* columns = &window->ColumnsStorage.back();
+    columns->ID = id;
+    return columns;
+}
+
+ImGuiID ImGui::GetColumnsID(const char* str_id, int columns_count)
+{
+    ImGuiWindow* window = GetCurrentWindow();
+
+    // Differentiate column ID with an arbitrary prefix for cases where users name their columns set the same as another widget.
+    // In addition, when an identifier isn't explicitly provided we include the number of columns in the hash to make it uniquer.
+    PushID(0x11223347 + (str_id ? 0 : columns_count));
+    ImGuiID id = window->GetID(str_id ? str_id : "columns");
+    PopID();
+
+    return id;
+}
+
+void ImGui::BeginColumns(const char* str_id, int columns_count, ImGuiOldColumnFlags flags)
+{
+    ImGuiContext& g = *GImGui;
+    ImGuiWindow* window = GetCurrentWindow();
+
+    IM_ASSERT(columns_count >= 1);
+    IM_ASSERT(window->DC.CurrentColumns == NULL);   // Nested columns are currently not supported
+
+    // Acquire storage for the columns set
+    ImGuiID id = GetColumnsID(str_id, columns_count);
+    ImGuiOldColumns* columns = FindOrCreateColumns(window, id);
+    IM_ASSERT(columns->ID == id);
+    columns->Current = 0;
+    columns->Count = columns_count;
+    columns->Flags = flags;
+    window->DC.CurrentColumns = columns;
+
+    columns->HostCursorPosY = window->DC.CursorPos.y;
+    columns->HostCursorMaxPosX = window->DC.CursorMaxPos.x;
+    columns->HostInitialClipRect = window->ClipRect;
+    columns->HostBackupParentWorkRect = window->ParentWorkRect;
+    window->ParentWorkRect = window->WorkRect;
+
+    // Set state for first column
+    // We aim so that the right-most column will have the same clipping width as other after being clipped by parent ClipRect
+    const float column_padding = g.Style.ItemSpacing.x;
+    const float half_clip_extend_x = ImFloor(ImMax(window->WindowPadding.x * 0.5f, window->WindowBorderSize));
+    const float max_1 = window->WorkRect.Max.x + column_padding - ImMax(column_padding - window->WindowPadding.x, 0.0f);
+    const float max_2 = window->WorkRect.Max.x + half_clip_extend_x;
+    columns->OffMinX = window->DC.Indent.x - column_padding + ImMax(column_padding - window->WindowPadding.x, 0.0f);
+    columns->OffMaxX = ImMax(ImMin(max_1, max_2) - window->Pos.x, columns->OffMinX + 1.0f);
+    columns->LineMinY = columns->LineMaxY = window->DC.CursorPos.y;
+
+    // Clear data if columns count changed
+    if (columns->Columns.Size != 0 && columns->Columns.Size != columns_count + 1)
+        columns->Columns.resize(0);
+
+    // Initialize default widths
+    columns->IsFirstFrame = (columns->Columns.Size == 0);
+    if (columns->Columns.Size == 0)
+    {
+        columns->Columns.reserve(columns_count + 1);
+        for (int n = 0; n < columns_count + 1; n++)
+        {
+            ImGuiOldColumnData column;
+            column.OffsetNorm = n / (float)columns_count;
+            columns->Columns.push_back(column);
+        }
+    }
+
+    for (int n = 0; n < columns_count; n++)
+    {
+        // Compute clipping rectangle
+        ImGuiOldColumnData* column = &columns->Columns[n];
+        float clip_x1 = IM_ROUND(window->Pos.x + GetColumnOffset(n));
+        float clip_x2 = IM_ROUND(window->Pos.x + GetColumnOffset(n + 1) - 1.0f);
+        column->ClipRect = ImRect(clip_x1, -FLT_MAX, clip_x2, +FLT_MAX);
+        column->ClipRect.ClipWithFull(window->ClipRect);
+    }
+
+    if (columns->Count > 1)
+    {
+        columns->Splitter.Split(window->DrawList, 1 + columns->Count);
+        columns->Splitter.SetCurrentChannel(window->DrawList, 1);
+        PushColumnClipRect(0);
+    }
+
+    // We don't generally store Indent.x inside ColumnsOffset because it may be manipulated by the user.
+    float offset_0 = GetColumnOffset(columns->Current);
+    float offset_1 = GetColumnOffset(columns->Current + 1);
+    float width = offset_1 - offset_0;
+    PushItemWidth(width * 0.65f);
+    window->DC.ColumnsOffset.x = ImMax(column_padding - window->WindowPadding.x, 0.0f);
+    window->DC.CursorPos.x = IM_FLOOR(window->Pos.x + window->DC.Indent.x + window->DC.ColumnsOffset.x);
+    window->WorkRect.Max.x = window->Pos.x + offset_1 - column_padding;
+}
+
+void ImGui::NextColumn()
+{
+    ImGuiWindow* window = GetCurrentWindow();
+    if (window->SkipItems || window->DC.CurrentColumns == NULL)
+        return;
+
+    ImGuiContext& g = *GImGui;
+    ImGuiOldColumns* columns = window->DC.CurrentColumns;
+
+    if (columns->Count == 1)
+    {
+        window->DC.CursorPos.x = IM_FLOOR(window->Pos.x + window->DC.Indent.x + window->DC.ColumnsOffset.x);
+        IM_ASSERT(columns->Current == 0);
+        return;
+    }
+
+    // Next column
+    if (++columns->Current == columns->Count)
+        columns->Current = 0;
+
+    PopItemWidth();
+
+    // Optimization: avoid PopClipRect() + SetCurrentChannel() + PushClipRect()
+    // (which would needlessly attempt to update commands in the wrong channel, then pop or overwrite them),
+    ImGuiOldColumnData* column = &columns->Columns[columns->Current];
+    SetWindowClipRectBeforeSetChannel(window, column->ClipRect);
+    columns->Splitter.SetCurrentChannel(window->DrawList, columns->Current + 1);
+
+    const float column_padding = g.Style.ItemSpacing.x;
+    columns->LineMaxY = ImMax(columns->LineMaxY, window->DC.CursorPos.y);
+    if (columns->Current > 0)
+    {
+        // Columns 1+ ignore IndentX (by canceling it out)
+        // FIXME-COLUMNS: Unnecessary, could be locked?
+        window->DC.ColumnsOffset.x = GetColumnOffset(columns->Current) - window->DC.Indent.x + column_padding;
+    }
+    else
+    {
+        // New row/line: column 0 honor IndentX.
+        window->DC.ColumnsOffset.x = ImMax(column_padding - window->WindowPadding.x, 0.0f);
+        columns->LineMinY = columns->LineMaxY;
+    }
+    window->DC.CursorPos.x = IM_FLOOR(window->Pos.x + window->DC.Indent.x + window->DC.ColumnsOffset.x);
+    window->DC.CursorPos.y = columns->LineMinY;
+    window->DC.CurrLineSize = ImVec2(0.0f, 0.0f);
+    window->DC.CurrLineTextBaseOffset = 0.0f;
+
+    // FIXME-COLUMNS: Share code with BeginColumns() - move code on columns setup.
+    float offset_0 = GetColumnOffset(columns->Current);
+    float offset_1 = GetColumnOffset(columns->Current + 1);
+    float width = offset_1 - offset_0;
+    PushItemWidth(width * 0.65f);
+    window->WorkRect.Max.x = window->Pos.x + offset_1 - column_padding;
+}
+
+void ImGui::EndColumns()
+{
+    ImGuiContext& g = *GImGui;
+    ImGuiWindow* window = GetCurrentWindow();
+    ImGuiOldColumns* columns = window->DC.CurrentColumns;
+    IM_ASSERT(columns != NULL);
+
+    PopItemWidth();
+    if (columns->Count > 1)
+    {
+        PopClipRect();
+        columns->Splitter.Merge(window->DrawList);
+    }
+
+    const ImGuiOldColumnFlags flags = columns->Flags;
+    columns->LineMaxY = ImMax(columns->LineMaxY, window->DC.CursorPos.y);
+    window->DC.CursorPos.y = columns->LineMaxY;
+    if (!(flags & ImGuiOldColumnFlags_GrowParentContentsSize))
+        window->DC.CursorMaxPos.x = columns->HostCursorMaxPosX;  // Restore cursor max pos, as columns don't grow parent
+
+    // Draw columns borders and handle resize
+    // The IsBeingResized flag ensure we preserve pre-resize columns width so back-and-forth are not lossy
+    bool is_being_resized = false;
+    if (!(flags & ImGuiOldColumnFlags_NoBorder) && !window->SkipItems)
+    {
+        // We clip Y boundaries CPU side because very long triangles are mishandled by some GPU drivers.
+        const float y1 = ImMax(columns->HostCursorPosY, window->ClipRect.Min.y);
+        const float y2 = ImMin(window->DC.CursorPos.y, window->ClipRect.Max.y);
+        int dragging_column = -1;
+        for (int n = 1; n < columns->Count; n++)
+        {
+            ImGuiOldColumnData* column = &columns->Columns[n];
+            float x = window->Pos.x + GetColumnOffset(n);
+            const ImGuiID column_id = columns->ID + ImGuiID(n);
+            const float column_hit_hw = COLUMNS_HIT_RECT_HALF_WIDTH;
+            const ImRect column_hit_rect(ImVec2(x - column_hit_hw, y1), ImVec2(x + column_hit_hw, y2));
+            KeepAliveID(column_id);
+            if (IsClippedEx(column_hit_rect, column_id)) // FIXME: Can be removed or replaced with a lower-level test
+                continue;
+
+            bool hovered = false, held = false;
+            if (!(flags & ImGuiOldColumnFlags_NoResize))
+            {
+                ButtonBehavior(column_hit_rect, column_id, &hovered, &held);
+                if (hovered || held)
+                    g.MouseCursor = ImGuiMouseCursor_ResizeEW;
+                if (held && !(column->Flags & ImGuiOldColumnFlags_NoResize))
+                    dragging_column = n;
+            }
+
+            // Draw column
+            const ImU32 col = GetColorU32(held ? ImGuiCol_SeparatorActive : hovered ? ImGuiCol_SeparatorHovered : ImGuiCol_Separator);
+            const float xi = IM_FLOOR(x);
+            window->DrawList->AddLine(ImVec2(xi, y1 + 1.0f), ImVec2(xi, y2), col);
+        }
+
+        // Apply dragging after drawing the column lines, so our rendered lines are in sync with how items were displayed during the frame.
+        if (dragging_column != -1)
+        {
+            if (!columns->IsBeingResized)
+                for (int n = 0; n < columns->Count + 1; n++)
+                    columns->Columns[n].OffsetNormBeforeResize = columns->Columns[n].OffsetNorm;
+            columns->IsBeingResized = is_being_resized = true;
+            float x = GetDraggedColumnOffset(columns, dragging_column);
+            SetColumnOffset(dragging_column, x);
+        }
+    }
+    columns->IsBeingResized = is_being_resized;
+
+    window->WorkRect = window->ParentWorkRect;
+    window->ParentWorkRect = columns->HostBackupParentWorkRect;
+    window->DC.CurrentColumns = NULL;
+    window->DC.ColumnsOffset.x = 0.0f;
+    window->DC.CursorPos.x = IM_FLOOR(window->Pos.x + window->DC.Indent.x + window->DC.ColumnsOffset.x);
+}
+
+void ImGui::Columns(int columns_count, const char* id, bool border)
+{
+    ImGuiWindow* window = GetCurrentWindow();
+    IM_ASSERT(columns_count >= 1);
+
+    ImGuiOldColumnFlags flags = (border ? 0 : ImGuiOldColumnFlags_NoBorder);
+    //flags |= ImGuiOldColumnFlags_NoPreserveWidths; // NB: Legacy behavior
+    ImGuiOldColumns* columns = window->DC.CurrentColumns;
+    if (columns != NULL && columns->Count == columns_count && columns->Flags == flags)
+        return;
+
+    if (columns != NULL)
+        EndColumns();
+
+    if (columns_count != 1)
+        BeginColumns(id, columns_count, flags);
+}
+
+//-------------------------------------------------------------------------
+
+#endif // #ifndef IMGUI_DISABLE
diff --git a/tests/manual/rhi/shared/imgui/imgui/imgui_widgets.cpp b/tests/manual/rhi/shared/imgui/imgui/imgui_widgets.cpp
new file mode 100644
index 00000000..ef91630f
--- /dev/null
+++ b/tests/manual/rhi/shared/imgui/imgui/imgui_widgets.cpp
@@ -0,0 +1,8394 @@
+// dear imgui, v1.88
+// (widgets code)
+
+/*
+
+Index of this file:
+
+// [SECTION] Forward Declarations
+// [SECTION] Widgets: Text, etc.
+// [SECTION] Widgets: Main (Button, Image, Checkbox, RadioButton, ProgressBar, Bullet, etc.)
+// [SECTION] Widgets: Low-level Layout helpers (Spacing, Dummy, NewLine, Separator, etc.)
+// [SECTION] Widgets: ComboBox
+// [SECTION] Data Type and Data Formatting Helpers
+// [SECTION] Widgets: DragScalar, DragFloat, DragInt, etc.
+// [SECTION] Widgets: SliderScalar, SliderFloat, SliderInt, etc.
+// [SECTION] Widgets: InputScalar, InputFloat, InputInt, etc.
+// [SECTION] Widgets: InputText, InputTextMultiline
+// [SECTION] Widgets: ColorEdit, ColorPicker, ColorButton, etc.
+// [SECTION] Widgets: TreeNode, CollapsingHeader, etc.
+// [SECTION] Widgets: Selectable
+// [SECTION] Widgets: ListBox
+// [SECTION] Widgets: PlotLines, PlotHistogram
+// [SECTION] Widgets: Value helpers
+// [SECTION] Widgets: MenuItem, BeginMenu, EndMenu, etc.
+// [SECTION] Widgets: BeginTabBar, EndTabBar, etc.
+// [SECTION] Widgets: BeginTabItem, EndTabItem, etc.
+// [SECTION] Widgets: Columns, BeginColumns, EndColumns, etc.
+
+*/
+
+#if defined(_MSC_VER) && !defined(_CRT_SECURE_NO_WARNINGS)
+#define _CRT_SECURE_NO_WARNINGS
+#endif
+
+#include "imgui.h"
+#ifndef IMGUI_DISABLE
+
+#ifndef IMGUI_DEFINE_MATH_OPERATORS
+#define IMGUI_DEFINE_MATH_OPERATORS
+#endif
+#include "imgui_internal.h"
+
+// System includes
+#include <ctype.h>      // toupper
+#if defined(_MSC_VER) && _MSC_VER <= 1500 // MSVC 2008 or earlier
+#include <stddef.h>     // intptr_t
+#else
+#include <stdint.h>     // intptr_t
+#endif
+
+//-------------------------------------------------------------------------
+// Warnings
+//-------------------------------------------------------------------------
+
+// Visual Studio warnings
+#ifdef _MSC_VER
+#pragma warning (disable: 4127)     // condition expression is constant
+#pragma warning (disable: 4996)     // 'This function or variable may be unsafe': strcpy, strdup, sprintf, vsnprintf, sscanf, fopen
+#if defined(_MSC_VER) && _MSC_VER >= 1922 // MSVC 2019 16.2 or later
+#pragma warning (disable: 5054)     // operator '|': deprecated between enumerations of different types
+#endif
+#pragma warning (disable: 26451)    // [Static Analyzer] Arithmetic overflow : Using operator 'xxx' on a 4 byte value and then casting the result to a 8 byte value. Cast the value to the wider type before calling operator 'xxx' to avoid overflow(io.2).
+#pragma warning (disable: 26812)    // [Static Analyzer] The enum type 'xxx' is unscoped. Prefer 'enum class' over 'enum' (Enum.3).
+#endif
+
+// Clang/GCC warnings with -Weverything
+#if defined(__clang__)
+#if __has_warning("-Wunknown-warning-option")
+#pragma clang diagnostic ignored "-Wunknown-warning-option"         // warning: unknown warning group 'xxx'                      // not all warnings are known by all Clang versions and they tend to be rename-happy.. so ignoring warnings triggers new warnings on some configuration. Great!
+#endif
+#pragma clang diagnostic ignored "-Wunknown-pragmas"                // warning: unknown warning group 'xxx'
+#pragma clang diagnostic ignored "-Wold-style-cast"                 // warning: use of old-style cast                            // yes, they are more terse.
+#pragma clang diagnostic ignored "-Wfloat-equal"                    // warning: comparing floating point with == or != is unsafe // storing and comparing against same constants (typically 0.0f) is ok.
+#pragma clang diagnostic ignored "-Wformat-nonliteral"              // warning: format string is not a string literal            // passing non-literal to vsnformat(). yes, user passing incorrect format strings can crash the code.
+#pragma clang diagnostic ignored "-Wsign-conversion"                // warning: implicit conversion changes signedness
+#pragma clang diagnostic ignored "-Wzero-as-null-pointer-constant"  // warning: zero as null pointer constant                    // some standard header variations use #define NULL 0
+#pragma clang diagnostic ignored "-Wdouble-promotion"               // warning: implicit conversion from 'float' to 'double' when passing argument to function  // using printf() is a misery with this as C++ va_arg ellipsis changes float to double.
+#pragma clang diagnostic ignored "-Wenum-enum-conversion"           // warning: bitwise operation between different enumeration types ('XXXFlags_' and 'XXXFlagsPrivate_')
+#pragma clang diagnostic ignored "-Wdeprecated-enum-enum-conversion"// warning: bitwise operation between different enumeration types ('XXXFlags_' and 'XXXFlagsPrivate_') is deprecated
+#pragma clang diagnostic ignored "-Wimplicit-int-float-conversion"  // warning: implicit conversion from 'xxx' to 'float' may lose precision
+#elif defined(__GNUC__)
+#pragma GCC diagnostic ignored "-Wpragmas"                          // warning: unknown option after '#pragma GCC diagnostic' kind
+#pragma GCC diagnostic ignored "-Wformat-nonliteral"                // warning: format not a string literal, format string not checked
+#pragma GCC diagnostic ignored "-Wclass-memaccess"                  // [__GNUC__ >= 8] warning: 'memset/memcpy' clearing/writing an object of type 'xxxx' with no trivial copy-assignment; use assignment or value-initialization instead
+#pragma GCC diagnostic ignored "-Wdeprecated-enum-enum-conversion"  // warning: bitwise operation between different enumeration types ('XXXFlags_' and 'XXXFlagsPrivate_') is deprecated
+#endif
+
+//-------------------------------------------------------------------------
+// Data
+//-------------------------------------------------------------------------
+
+// Widgets
+static const float          DRAGDROP_HOLD_TO_OPEN_TIMER = 0.70f;    // Time for drag-hold to activate items accepting the ImGuiButtonFlags_PressedOnDragDropHold button behavior.
+static const float          DRAG_MOUSE_THRESHOLD_FACTOR = 0.50f;    // Multiplier for the default value of io.MouseDragThreshold to make DragFloat/DragInt react faster to mouse drags.
+
+// Those MIN/MAX values are not define because we need to point to them
+static const signed char    IM_S8_MIN  = -128;
+static const signed char    IM_S8_MAX  = 127;
+static const unsigned char  IM_U8_MIN  = 0;
+static const unsigned char  IM_U8_MAX  = 0xFF;
+static const signed short   IM_S16_MIN = -32768;
+static const signed short   IM_S16_MAX = 32767;
+static const unsigned short IM_U16_MIN = 0;
+static const unsigned short IM_U16_MAX = 0xFFFF;
+static const ImS32          IM_S32_MIN = INT_MIN;    // (-2147483647 - 1), (0x80000000);
+static const ImS32          IM_S32_MAX = INT_MAX;    // (2147483647), (0x7FFFFFFF)
+static const ImU32          IM_U32_MIN = 0;
+static const ImU32          IM_U32_MAX = UINT_MAX;   // (0xFFFFFFFF)
+#ifdef LLONG_MIN
+static const ImS64          IM_S64_MIN = LLONG_MIN;  // (-9223372036854775807ll - 1ll);
+static const ImS64          IM_S64_MAX = LLONG_MAX;  // (9223372036854775807ll);
+#else
+static const ImS64          IM_S64_MIN = -9223372036854775807LL - 1;
+static const ImS64          IM_S64_MAX = 9223372036854775807LL;
+#endif
+static const ImU64          IM_U64_MIN = 0;
+#ifdef ULLONG_MAX
+static const ImU64          IM_U64_MAX = ULLONG_MAX; // (0xFFFFFFFFFFFFFFFFull);
+#else
+static const ImU64          IM_U64_MAX = (2ULL * 9223372036854775807LL + 1);
+#endif
+
+//-------------------------------------------------------------------------
+// [SECTION] Forward Declarations
+//-------------------------------------------------------------------------
+
+// For InputTextEx()
+static bool             InputTextFilterCharacter(unsigned int* p_char, ImGuiInputTextFlags flags, ImGuiInputTextCallback callback, void* user_data, ImGuiInputSource input_source);
+static int              InputTextCalcTextLenAndLineCount(const char* text_begin, const char** out_text_end);
+static ImVec2           InputTextCalcTextSizeW(const ImWchar* text_begin, const ImWchar* text_end, const ImWchar** remaining = NULL, ImVec2* out_offset = NULL, bool stop_on_new_line = false);
+
+//-------------------------------------------------------------------------
+// [SECTION] Widgets: Text, etc.
+//-------------------------------------------------------------------------
+// - TextEx() [Internal]
+// - TextUnformatted()
+// - Text()
+// - TextV()
+// - TextColored()
+// - TextColoredV()
+// - TextDisabled()
+// - TextDisabledV()
+// - TextWrapped()
+// - TextWrappedV()
+// - LabelText()
+// - LabelTextV()
+// - BulletText()
+// - BulletTextV()
+//-------------------------------------------------------------------------
+
+void ImGui::TextEx(const char* text, const char* text_end, ImGuiTextFlags flags)
+{
+    ImGuiWindow* window = GetCurrentWindow();
+    if (window->SkipItems)
+        return;
+    ImGuiContext& g = *GImGui;
+
+    // Accept null ranges
+    if (text == text_end)
+        text = text_end = "";
+
+    // Calculate length
+    const char* text_begin = text;
+    if (text_end == NULL)
+        text_end = text + strlen(text); // FIXME-OPT
+
+    const ImVec2 text_pos(window->DC.CursorPos.x, window->DC.CursorPos.y + window->DC.CurrLineTextBaseOffset);
+    const float wrap_pos_x = window->DC.TextWrapPos;
+    const bool wrap_enabled = (wrap_pos_x >= 0.0f);
+    if (text_end - text <= 2000 || wrap_enabled)
+    {
+        // Common case
+        const float wrap_width = wrap_enabled ? CalcWrapWidthForPos(window->DC.CursorPos, wrap_pos_x) : 0.0f;
+        const ImVec2 text_size = CalcTextSize(text_begin, text_end, false, wrap_width);
+
+        ImRect bb(text_pos, text_pos + text_size);
+        ItemSize(text_size, 0.0f);
+        if (!ItemAdd(bb, 0))
+            return;
+
+        // Render (we don't hide text after ## in this end-user function)
+        RenderTextWrapped(bb.Min, text_begin, text_end, wrap_width);
+    }
+    else
+    {
+        // Long text!
+        // Perform manual coarse clipping to optimize for long multi-line text
+        // - From this point we will only compute the width of lines that are visible. Optimization only available when word-wrapping is disabled.
+        // - We also don't vertically center the text within the line full height, which is unlikely to matter because we are likely the biggest and only item on the line.
+        // - We use memchr(), pay attention that well optimized versions of those str/mem functions are much faster than a casually written loop.
+        const char* line = text;
+        const float line_height = GetTextLineHeight();
+        ImVec2 text_size(0, 0);
+
+        // Lines to skip (can't skip when logging text)
+        ImVec2 pos = text_pos;
+        if (!g.LogEnabled)
+        {
+            int lines_skippable = (int)((window->ClipRect.Min.y - text_pos.y) / line_height);
+            if (lines_skippable > 0)
+            {
+                int lines_skipped = 0;
+                while (line < text_end && lines_skipped < lines_skippable)
+                {
+                    const char* line_end = (const char*)memchr(line, '\n', text_end - line);
+                    if (!line_end)
+                        line_end = text_end;
+                    if ((flags & ImGuiTextFlags_NoWidthForLargeClippedText) == 0)
+                        text_size.x = ImMax(text_size.x, CalcTextSize(line, line_end).x);
+                    line = line_end + 1;
+                    lines_skipped++;
+                }
+                pos.y += lines_skipped * line_height;
+            }
+        }
+
+        // Lines to render
+        if (line < text_end)
+        {
+            ImRect line_rect(pos, pos + ImVec2(FLT_MAX, line_height));
+            while (line < text_end)
+            {
+                if (IsClippedEx(line_rect, 0))
+                    break;
+
+                const char* line_end = (const char*)memchr(line, '\n', text_end - line);
+                if (!line_end)
+                    line_end = text_end;
+                text_size.x = ImMax(text_size.x, CalcTextSize(line, line_end).x);
+                RenderText(pos, line, line_end, false);
+                line = line_end + 1;
+                line_rect.Min.y += line_height;
+                line_rect.Max.y += line_height;
+                pos.y += line_height;
+            }
+
+            // Count remaining lines
+            int lines_skipped = 0;
+            while (line < text_end)
+            {
+                const char* line_end = (const char*)memchr(line, '\n', text_end - line);
+                if (!line_end)
+                    line_end = text_end;
+                if ((flags & ImGuiTextFlags_NoWidthForLargeClippedText) == 0)
+                    text_size.x = ImMax(text_size.x, CalcTextSize(line, line_end).x);
+                line = line_end + 1;
+                lines_skipped++;
+            }
+            pos.y += lines_skipped * line_height;
+        }
+        text_size.y = (pos - text_pos).y;
+
+        ImRect bb(text_pos, text_pos + text_size);
+        ItemSize(text_size, 0.0f);
+        ItemAdd(bb, 0);
+    }
+}
+
+void ImGui::TextUnformatted(const char* text, const char* text_end)
+{
+    TextEx(text, text_end, ImGuiTextFlags_NoWidthForLargeClippedText);
+}
+
+void ImGui::Text(const char* fmt, ...)
+{
+    va_list args;
+    va_start(args, fmt);
+    TextV(fmt, args);
+    va_end(args);
+}
+
+void ImGui::TextV(const char* fmt, va_list args)
+{
+    ImGuiWindow* window = GetCurrentWindow();
+    if (window->SkipItems)
+        return;
+
+    // FIXME-OPT: Handle the %s shortcut?
+    const char* text, *text_end;
+    ImFormatStringToTempBufferV(&text, &text_end, fmt, args);
+    TextEx(text, text_end, ImGuiTextFlags_NoWidthForLargeClippedText);
+}
+
+void ImGui::TextColored(const ImVec4& col, const char* fmt, ...)
+{
+    va_list args;
+    va_start(args, fmt);
+    TextColoredV(col, fmt, args);
+    va_end(args);
+}
+
+void ImGui::TextColoredV(const ImVec4& col, const char* fmt, va_list args)
+{
+    PushStyleColor(ImGuiCol_Text, col);
+    if (fmt[0] == '%' && fmt[1] == 's' && fmt[2] == 0)
+        TextEx(va_arg(args, const char*), NULL, ImGuiTextFlags_NoWidthForLargeClippedText); // Skip formatting
+    else
+        TextV(fmt, args);
+    PopStyleColor();
+}
+
+void ImGui::TextDisabled(const char* fmt, ...)
+{
+    va_list args;
+    va_start(args, fmt);
+    TextDisabledV(fmt, args);
+    va_end(args);
+}
+
+void ImGui::TextDisabledV(const char* fmt, va_list args)
+{
+    ImGuiContext& g = *GImGui;
+    PushStyleColor(ImGuiCol_Text, g.Style.Colors[ImGuiCol_TextDisabled]);
+    if (fmt[0] == '%' && fmt[1] == 's' && fmt[2] == 0)
+        TextEx(va_arg(args, const char*), NULL, ImGuiTextFlags_NoWidthForLargeClippedText); // Skip formatting
+    else
+        TextV(fmt, args);
+    PopStyleColor();
+}
+
+void ImGui::TextWrapped(const char* fmt, ...)
+{
+    va_list args;
+    va_start(args, fmt);
+    TextWrappedV(fmt, args);
+    va_end(args);
+}
+
+void ImGui::TextWrappedV(const char* fmt, va_list args)
+{
+    ImGuiContext& g = *GImGui;
+    bool need_backup = (g.CurrentWindow->DC.TextWrapPos < 0.0f);  // Keep existing wrap position if one is already set
+    if (need_backup)
+        PushTextWrapPos(0.0f);
+    if (fmt[0] == '%' && fmt[1] == 's' && fmt[2] == 0)
+        TextEx(va_arg(args, const char*), NULL, ImGuiTextFlags_NoWidthForLargeClippedText); // Skip formatting
+    else
+        TextV(fmt, args);
+    if (need_backup)
+        PopTextWrapPos();
+}
+
+void ImGui::LabelText(const char* label, const char* fmt, ...)
+{
+    va_list args;
+    va_start(args, fmt);
+    LabelTextV(label, fmt, args);
+    va_end(args);
+}
+
+// Add a label+text combo aligned to other label+value widgets
+void ImGui::LabelTextV(const char* label, const char* fmt, va_list args)
+{
+    ImGuiWindow* window = GetCurrentWindow();
+    if (window->SkipItems)
+        return;
+
+    ImGuiContext& g = *GImGui;
+    const ImGuiStyle& style = g.Style;
+    const float w = CalcItemWidth();
+
+    const char* value_text_begin, *value_text_end;
+    ImFormatStringToTempBufferV(&value_text_begin, &value_text_end, fmt, args);
+    const ImVec2 value_size = CalcTextSize(value_text_begin, value_text_end, false);
+    const ImVec2 label_size = CalcTextSize(label, NULL, true);
+
+    const ImVec2 pos = window->DC.CursorPos;
+    const ImRect value_bb(pos, pos + ImVec2(w, value_size.y + style.FramePadding.y * 2));
+    const ImRect total_bb(pos, pos + ImVec2(w + (label_size.x > 0.0f ? style.ItemInnerSpacing.x + label_size.x : 0.0f), ImMax(value_size.y, label_size.y) + style.FramePadding.y * 2));
+    ItemSize(total_bb, style.FramePadding.y);
+    if (!ItemAdd(total_bb, 0))
+        return;
+
+    // Render
+    RenderTextClipped(value_bb.Min + style.FramePadding, value_bb.Max, value_text_begin, value_text_end, &value_size, ImVec2(0.0f, 0.0f));
+    if (label_size.x > 0.0f)
+        RenderText(ImVec2(value_bb.Max.x + style.ItemInnerSpacing.x, value_bb.Min.y + style.FramePadding.y), label);
+}
+
+void ImGui::BulletText(const char* fmt, ...)
+{
+    va_list args;
+    va_start(args, fmt);
+    BulletTextV(fmt, args);
+    va_end(args);
+}
+
+// Text with a little bullet aligned to the typical tree node.
+void ImGui::BulletTextV(const char* fmt, va_list args)
+{
+    ImGuiWindow* window = GetCurrentWindow();
+    if (window->SkipItems)
+        return;
+
+    ImGuiContext& g = *GImGui;
+    const ImGuiStyle& style = g.Style;
+
+    const char* text_begin, *text_end;
+    ImFormatStringToTempBufferV(&text_begin, &text_end, fmt, args);
+    const ImVec2 label_size = CalcTextSize(text_begin, text_end, false);
+    const ImVec2 total_size = ImVec2(g.FontSize + (label_size.x > 0.0f ? (label_size.x + style.FramePadding.x * 2) : 0.0f), label_size.y);  // Empty text doesn't add padding
+    ImVec2 pos = window->DC.CursorPos;
+    pos.y += window->DC.CurrLineTextBaseOffset;
+    ItemSize(total_size, 0.0f);
+    const ImRect bb(pos, pos + total_size);
+    if (!ItemAdd(bb, 0))
+        return;
+
+    // Render
+    ImU32 text_col = GetColorU32(ImGuiCol_Text);
+    RenderBullet(window->DrawList, bb.Min + ImVec2(style.FramePadding.x + g.FontSize * 0.5f, g.FontSize * 0.5f), text_col);
+    RenderText(bb.Min + ImVec2(g.FontSize + style.FramePadding.x * 2, 0.0f), text_begin, text_end, false);
+}
+
+//-------------------------------------------------------------------------
+// [SECTION] Widgets: Main
+//-------------------------------------------------------------------------
+// - ButtonBehavior() [Internal]
+// - Button()
+// - SmallButton()
+// - InvisibleButton()
+// - ArrowButton()
+// - CloseButton() [Internal]
+// - CollapseButton() [Internal]
+// - GetWindowScrollbarID() [Internal]
+// - GetWindowScrollbarRect() [Internal]
+// - Scrollbar() [Internal]
+// - ScrollbarEx() [Internal]
+// - Image()
+// - ImageButton()
+// - Checkbox()
+// - CheckboxFlagsT() [Internal]
+// - CheckboxFlags()
+// - RadioButton()
+// - ProgressBar()
+// - Bullet()
+//-------------------------------------------------------------------------
+
+// The ButtonBehavior() function is key to many interactions and used by many/most widgets.
+// Because we handle so many cases (keyboard/gamepad navigation, drag and drop) and many specific behavior (via ImGuiButtonFlags_),
+// this code is a little complex.
+// By far the most common path is interacting with the Mouse using the default ImGuiButtonFlags_PressedOnClickRelease button behavior.
+// See the series of events below and the corresponding state reported by dear imgui:
+//------------------------------------------------------------------------------------------------------------------------------------------------
+// with PressedOnClickRelease:             return-value  IsItemHovered()  IsItemActive()  IsItemActivated()  IsItemDeactivated()  IsItemClicked()
+//   Frame N+0 (mouse is outside bb)        -             -                -               -                  -                    -
+//   Frame N+1 (mouse moves inside bb)      -             true             -               -                  -                    -
+//   Frame N+2 (mouse button is down)       -             true             true            true               -                    true
+//   Frame N+3 (mouse button is down)       -             true             true            -                  -                    -
+//   Frame N+4 (mouse moves outside bb)     -             -                true            -                  -                    -
+//   Frame N+5 (mouse moves inside bb)      -             true             true            -                  -                    -
+//   Frame N+6 (mouse button is released)   true          true             -               -                  true                 -
+//   Frame N+7 (mouse button is released)   -             true             -               -                  -                    -
+//   Frame N+8 (mouse moves outside bb)     -             -                -               -                  -                    -
+//------------------------------------------------------------------------------------------------------------------------------------------------
+// with PressedOnClick:                    return-value  IsItemHovered()  IsItemActive()  IsItemActivated()  IsItemDeactivated()  IsItemClicked()
+//   Frame N+2 (mouse button is down)       true          true             true            true               -                    true
+//   Frame N+3 (mouse button is down)       -             true             true            -                  -                    -
+//   Frame N+6 (mouse button is released)   -             true             -               -                  true                 -
+//   Frame N+7 (mouse button is released)   -             true             -               -                  -                    -
+//------------------------------------------------------------------------------------------------------------------------------------------------
+// with PressedOnRelease:                  return-value  IsItemHovered()  IsItemActive()  IsItemActivated()  IsItemDeactivated()  IsItemClicked()
+//   Frame N+2 (mouse button is down)       -             true             -               -                  -                    true
+//   Frame N+3 (mouse button is down)       -             true             -               -                  -                    -
+//   Frame N+6 (mouse button is released)   true          true             -               -                  -                    -
+//   Frame N+7 (mouse button is released)   -             true             -               -                  -                    -
+//------------------------------------------------------------------------------------------------------------------------------------------------
+// with PressedOnDoubleClick:              return-value  IsItemHovered()  IsItemActive()  IsItemActivated()  IsItemDeactivated()  IsItemClicked()
+//   Frame N+0 (mouse button is down)       -             true             -               -                  -                    true
+//   Frame N+1 (mouse button is down)       -             true             -               -                  -                    -
+//   Frame N+2 (mouse button is released)   -             true             -               -                  -                    -
+//   Frame N+3 (mouse button is released)   -             true             -               -                  -                    -
+//   Frame N+4 (mouse button is down)       true          true             true            true               -                    true
+//   Frame N+5 (mouse button is down)       -             true             true            -                  -                    -
+//   Frame N+6 (mouse button is released)   -             true             -               -                  true                 -
+//   Frame N+7 (mouse button is released)   -             true             -               -                  -                    -
+//------------------------------------------------------------------------------------------------------------------------------------------------
+// Note that some combinations are supported,
+// - PressedOnDragDropHold can generally be associated with any flag.
+// - PressedOnDoubleClick can be associated by PressedOnClickRelease/PressedOnRelease, in which case the second release event won't be reported.
+//------------------------------------------------------------------------------------------------------------------------------------------------
+// The behavior of the return-value changes when ImGuiButtonFlags_Repeat is set:
+//                                         Repeat+                  Repeat+           Repeat+             Repeat+
+//                                         PressedOnClickRelease    PressedOnClick    PressedOnRelease    PressedOnDoubleClick
+//-------------------------------------------------------------------------------------------------------------------------------------------------
+//   Frame N+0 (mouse button is down)       -                        true              -                   true
+//   ...                                    -                        -                 -                   -
+//   Frame N + RepeatDelay                  true                     true              -                   true
+//   ...                                    -                        -                 -                   -
+//   Frame N + RepeatDelay + RepeatRate*N   true                     true              -                   true
+//-------------------------------------------------------------------------------------------------------------------------------------------------
+
+bool ImGui::ButtonBehavior(const ImRect& bb, ImGuiID id, bool* out_hovered, bool* out_held, ImGuiButtonFlags flags)
+{
+    ImGuiContext& g = *GImGui;
+    ImGuiWindow* window = GetCurrentWindow();
+
+    // Default only reacts to left mouse button
+    if ((flags & ImGuiButtonFlags_MouseButtonMask_) == 0)
+        flags |= ImGuiButtonFlags_MouseButtonDefault_;
+
+    // Default behavior requires click + release inside bounding box
+    if ((flags & ImGuiButtonFlags_PressedOnMask_) == 0)
+        flags |= ImGuiButtonFlags_PressedOnDefault_;
+
+    ImGuiWindow* backup_hovered_window = g.HoveredWindow;
+    const bool flatten_hovered_children = (flags & ImGuiButtonFlags_FlattenChildren) && g.HoveredWindow && g.HoveredWindow->RootWindow == window;
+    if (flatten_hovered_children)
+        g.HoveredWindow = window;
+
+#ifdef IMGUI_ENABLE_TEST_ENGINE
+    if (id != 0 && g.LastItemData.ID != id)
+        IMGUI_TEST_ENGINE_ITEM_ADD(bb, id);
+#endif
+
+    bool pressed = false;
+    bool hovered = ItemHoverable(bb, id);
+
+    // Drag source doesn't report as hovered
+    if (hovered && g.DragDropActive && g.DragDropPayload.SourceId == id && !(g.DragDropSourceFlags & ImGuiDragDropFlags_SourceNoDisableHover))
+        hovered = false;
+
+    // Special mode for Drag and Drop where holding button pressed for a long time while dragging another item triggers the button
+    if (g.DragDropActive && (flags & ImGuiButtonFlags_PressedOnDragDropHold) && !(g.DragDropSourceFlags & ImGuiDragDropFlags_SourceNoHoldToOpenOthers))
+        if (IsItemHovered(ImGuiHoveredFlags_AllowWhenBlockedByActiveItem))
+        {
+            hovered = true;
+            SetHoveredID(id);
+            if (g.HoveredIdTimer - g.IO.DeltaTime <= DRAGDROP_HOLD_TO_OPEN_TIMER && g.HoveredIdTimer >= DRAGDROP_HOLD_TO_OPEN_TIMER)
+            {
+                pressed = true;
+                g.DragDropHoldJustPressedId = id;
+                FocusWindow(window);
+            }
+        }
+
+    if (flatten_hovered_children)
+        g.HoveredWindow = backup_hovered_window;
+
+    // AllowOverlap mode (rarely used) requires previous frame HoveredId to be null or to match. This allows using patterns where a later submitted widget overlaps a previous one.
+    if (hovered && (flags & ImGuiButtonFlags_AllowItemOverlap) && (g.HoveredIdPreviousFrame != id && g.HoveredIdPreviousFrame != 0))
+        hovered = false;
+
+    // Mouse handling
+    if (hovered)
+    {
+        if (!(flags & ImGuiButtonFlags_NoKeyModifiers) || (!g.IO.KeyCtrl && !g.IO.KeyShift && !g.IO.KeyAlt))
+        {
+            // Poll buttons
+            int mouse_button_clicked = -1;
+            if ((flags & ImGuiButtonFlags_MouseButtonLeft) && g.IO.MouseClicked[0])         { mouse_button_clicked = 0; }
+            else if ((flags & ImGuiButtonFlags_MouseButtonRight) && g.IO.MouseClicked[1])   { mouse_button_clicked = 1; }
+            else if ((flags & ImGuiButtonFlags_MouseButtonMiddle) && g.IO.MouseClicked[2])  { mouse_button_clicked = 2; }
+
+            if (mouse_button_clicked != -1 && g.ActiveId != id)
+            {
+                if (flags & (ImGuiButtonFlags_PressedOnClickRelease | ImGuiButtonFlags_PressedOnClickReleaseAnywhere))
+                {
+                    SetActiveID(id, window);
+                    g.ActiveIdMouseButton = mouse_button_clicked;
+                    if (!(flags & ImGuiButtonFlags_NoNavFocus))
+                        SetFocusID(id, window);
+                    FocusWindow(window);
+                }
+                if ((flags & ImGuiButtonFlags_PressedOnClick) || ((flags & ImGuiButtonFlags_PressedOnDoubleClick) && g.IO.MouseClickedCount[mouse_button_clicked] == 2))
+                {
+                    pressed = true;
+                    if (flags & ImGuiButtonFlags_NoHoldingActiveId)
+                        ClearActiveID();
+                    else
+                        SetActiveID(id, window); // Hold on ID
+                    if (!(flags & ImGuiButtonFlags_NoNavFocus))
+                        SetFocusID(id, window);
+                    g.ActiveIdMouseButton = mouse_button_clicked;
+                    FocusWindow(window);
+                }
+            }
+            if (flags & ImGuiButtonFlags_PressedOnRelease)
+            {
+                int mouse_button_released = -1;
+                if ((flags & ImGuiButtonFlags_MouseButtonLeft) && g.IO.MouseReleased[0])        { mouse_button_released = 0; }
+                else if ((flags & ImGuiButtonFlags_MouseButtonRight) && g.IO.MouseReleased[1])  { mouse_button_released = 1; }
+                else if ((flags & ImGuiButtonFlags_MouseButtonMiddle) && g.IO.MouseReleased[2]) { mouse_button_released = 2; }
+                if (mouse_button_released != -1)
+                {
+                    const bool has_repeated_at_least_once = (flags & ImGuiButtonFlags_Repeat) && g.IO.MouseDownDurationPrev[mouse_button_released] >= g.IO.KeyRepeatDelay; // Repeat mode trumps on release behavior
+                    if (!has_repeated_at_least_once)
+                        pressed = true;
+                    if (!(flags & ImGuiButtonFlags_NoNavFocus))
+                        SetFocusID(id, window);
+                    ClearActiveID();
+                }
+            }
+
+            // 'Repeat' mode acts when held regardless of _PressedOn flags (see table above).
+            // Relies on repeat logic of IsMouseClicked() but we may as well do it ourselves if we end up exposing finer RepeatDelay/RepeatRate settings.
+            if (g.ActiveId == id && (flags & ImGuiButtonFlags_Repeat))
+                if (g.IO.MouseDownDuration[g.ActiveIdMouseButton] > 0.0f && IsMouseClicked(g.ActiveIdMouseButton, true))
+                    pressed = true;
+        }
+
+        if (pressed)
+            g.NavDisableHighlight = true;
+    }
+
+    // Gamepad/Keyboard navigation
+    // We report navigated item as hovered but we don't set g.HoveredId to not interfere with mouse.
+    if (g.NavId == id && !g.NavDisableHighlight && g.NavDisableMouseHover && (g.ActiveId == 0 || g.ActiveId == id || g.ActiveId == window->MoveId))
+        if (!(flags & ImGuiButtonFlags_NoHoveredOnFocus))
+            hovered = true;
+    if (g.NavActivateDownId == id)
+    {
+        bool nav_activated_by_code = (g.NavActivateId == id);
+        bool nav_activated_by_inputs = IsNavInputTest(ImGuiNavInput_Activate, (flags & ImGuiButtonFlags_Repeat) ? ImGuiNavReadMode_Repeat : ImGuiNavReadMode_Pressed);
+        if (nav_activated_by_code || nav_activated_by_inputs)
+        {
+            // Set active id so it can be queried by user via IsItemActive(), equivalent of holding the mouse button.
+            pressed = true;
+            SetActiveID(id, window);
+            g.ActiveIdSource = ImGuiInputSource_Nav;
+            if (!(flags & ImGuiButtonFlags_NoNavFocus))
+                SetFocusID(id, window);
+        }
+    }
+
+    // Process while held
+    bool held = false;
+    if (g.ActiveId == id)
+    {
+        if (g.ActiveIdSource == ImGuiInputSource_Mouse)
+        {
+            if (g.ActiveIdIsJustActivated)
+                g.ActiveIdClickOffset = g.IO.MousePos - bb.Min;
+
+            const int mouse_button = g.ActiveIdMouseButton;
+            IM_ASSERT(mouse_button >= 0 && mouse_button < ImGuiMouseButton_COUNT);
+            if (g.IO.MouseDown[mouse_button])
+            {
+                held = true;
+            }
+            else
+            {
+                bool release_in = hovered && (flags & ImGuiButtonFlags_PressedOnClickRelease) != 0;
+                bool release_anywhere = (flags & ImGuiButtonFlags_PressedOnClickReleaseAnywhere) != 0;
+                if ((release_in || release_anywhere) && !g.DragDropActive)
+                {
+                    // Report as pressed when releasing the mouse (this is the most common path)
+                    bool is_double_click_release = (flags & ImGuiButtonFlags_PressedOnDoubleClick) && g.IO.MouseReleased[mouse_button] && g.IO.MouseClickedLastCount[mouse_button] == 2;
+                    bool is_repeating_already = (flags & ImGuiButtonFlags_Repeat) && g.IO.MouseDownDurationPrev[mouse_button] >= g.IO.KeyRepeatDelay; // Repeat mode trumps <on release>
+                    if (!is_double_click_release && !is_repeating_already)
+                        pressed = true;
+                }
+                ClearActiveID();
+            }
+            if (!(flags & ImGuiButtonFlags_NoNavFocus))
+                g.NavDisableHighlight = true;
+        }
+        else if (g.ActiveIdSource == ImGuiInputSource_Nav)
+        {
+            // When activated using Nav, we hold on the ActiveID until activation button is released
+            if (g.NavActivateDownId != id)
+                ClearActiveID();
+        }
+        if (pressed)
+            g.ActiveIdHasBeenPressedBefore = true;
+    }
+
+    if (out_hovered) *out_hovered = hovered;
+    if (out_held) *out_held = held;
+
+    return pressed;
+}
+
+bool ImGui::ButtonEx(const char* label, const ImVec2& size_arg, ImGuiButtonFlags flags)
+{
+    ImGuiWindow* window = GetCurrentWindow();
+    if (window->SkipItems)
+        return false;
+
+    ImGuiContext& g = *GImGui;
+    const ImGuiStyle& style = g.Style;
+    const ImGuiID id = window->GetID(label);
+    const ImVec2 label_size = CalcTextSize(label, NULL, true);
+
+    ImVec2 pos = window->DC.CursorPos;
+    if ((flags & ImGuiButtonFlags_AlignTextBaseLine) && style.FramePadding.y < window->DC.CurrLineTextBaseOffset) // Try to vertically align buttons that are smaller/have no padding so that text baseline matches (bit hacky, since it shouldn't be a flag)
+        pos.y += window->DC.CurrLineTextBaseOffset - style.FramePadding.y;
+    ImVec2 size = CalcItemSize(size_arg, label_size.x + style.FramePadding.x * 2.0f, label_size.y + style.FramePadding.y * 2.0f);
+
+    const ImRect bb(pos, pos + size);
+    ItemSize(size, style.FramePadding.y);
+    if (!ItemAdd(bb, id))
+        return false;
+
+    if (g.LastItemData.InFlags & ImGuiItemFlags_ButtonRepeat)
+        flags |= ImGuiButtonFlags_Repeat;
+
+    bool hovered, held;
+    bool pressed = ButtonBehavior(bb, id, &hovered, &held, flags);
+
+    // Render
+    const ImU32 col = GetColorU32((held && hovered) ? ImGuiCol_ButtonActive : hovered ? ImGuiCol_ButtonHovered : ImGuiCol_Button);
+    RenderNavHighlight(bb, id);
+    RenderFrame(bb.Min, bb.Max, col, true, style.FrameRounding);
+
+    if (g.LogEnabled)
+        LogSetNextTextDecoration("[", "]");
+    RenderTextClipped(bb.Min + style.FramePadding, bb.Max - style.FramePadding, label, NULL, &label_size, style.ButtonTextAlign, &bb);
+
+    // Automatically close popups
+    //if (pressed && !(flags & ImGuiButtonFlags_DontClosePopups) && (window->Flags & ImGuiWindowFlags_Popup))
+    //    CloseCurrentPopup();
+
+    IMGUI_TEST_ENGINE_ITEM_INFO(id, label, g.LastItemData.StatusFlags);
+    return pressed;
+}
+
+bool ImGui::Button(const char* label, const ImVec2& size_arg)
+{
+    return ButtonEx(label, size_arg, ImGuiButtonFlags_None);
+}
+
+// Small buttons fits within text without additional vertical spacing.
+bool ImGui::SmallButton(const char* label)
+{
+    ImGuiContext& g = *GImGui;
+    float backup_padding_y = g.Style.FramePadding.y;
+    g.Style.FramePadding.y = 0.0f;
+    bool pressed = ButtonEx(label, ImVec2(0, 0), ImGuiButtonFlags_AlignTextBaseLine);
+    g.Style.FramePadding.y = backup_padding_y;
+    return pressed;
+}
+
+// Tip: use ImGui::PushID()/PopID() to push indices or pointers in the ID stack.
+// Then you can keep 'str_id' empty or the same for all your buttons (instead of creating a string based on a non-string id)
+bool ImGui::InvisibleButton(const char* str_id, const ImVec2& size_arg, ImGuiButtonFlags flags)
+{
+    ImGuiContext& g = *GImGui;
+    ImGuiWindow* window = GetCurrentWindow();
+    if (window->SkipItems)
+        return false;
+
+    // Cannot use zero-size for InvisibleButton(). Unlike Button() there is not way to fallback using the label size.
+    IM_ASSERT(size_arg.x != 0.0f && size_arg.y != 0.0f);
+
+    const ImGuiID id = window->GetID(str_id);
+    ImVec2 size = CalcItemSize(size_arg, 0.0f, 0.0f);
+    const ImRect bb(window->DC.CursorPos, window->DC.CursorPos + size);
+    ItemSize(size);
+    if (!ItemAdd(bb, id))
+        return false;
+
+    bool hovered, held;
+    bool pressed = ButtonBehavior(bb, id, &hovered, &held, flags);
+
+    IMGUI_TEST_ENGINE_ITEM_INFO(id, str_id, g.LastItemData.StatusFlags);
+    return pressed;
+}
+
+bool ImGui::ArrowButtonEx(const char* str_id, ImGuiDir dir, ImVec2 size, ImGuiButtonFlags flags)
+{
+    ImGuiContext& g = *GImGui;
+    ImGuiWindow* window = GetCurrentWindow();
+    if (window->SkipItems)
+        return false;
+
+    const ImGuiID id = window->GetID(str_id);
+    const ImRect bb(window->DC.CursorPos, window->DC.CursorPos + size);
+    const float default_size = GetFrameHeight();
+    ItemSize(size, (size.y >= default_size) ? g.Style.FramePadding.y : -1.0f);
+    if (!ItemAdd(bb, id))
+        return false;
+
+    if (g.LastItemData.InFlags & ImGuiItemFlags_ButtonRepeat)
+        flags |= ImGuiButtonFlags_Repeat;
+
+    bool hovered, held;
+    bool pressed = ButtonBehavior(bb, id, &hovered, &held, flags);
+
+    // Render
+    const ImU32 bg_col = GetColorU32((held && hovered) ? ImGuiCol_ButtonActive : hovered ? ImGuiCol_ButtonHovered : ImGuiCol_Button);
+    const ImU32 text_col = GetColorU32(ImGuiCol_Text);
+    RenderNavHighlight(bb, id);
+    RenderFrame(bb.Min, bb.Max, bg_col, true, g.Style.FrameRounding);
+    RenderArrow(window->DrawList, bb.Min + ImVec2(ImMax(0.0f, (size.x - g.FontSize) * 0.5f), ImMax(0.0f, (size.y - g.FontSize) * 0.5f)), text_col, dir);
+
+    IMGUI_TEST_ENGINE_ITEM_INFO(id, str_id, g.LastItemData.StatusFlags);
+    return pressed;
+}
+
+bool ImGui::ArrowButton(const char* str_id, ImGuiDir dir)
+{
+    float sz = GetFrameHeight();
+    return ArrowButtonEx(str_id, dir, ImVec2(sz, sz), ImGuiButtonFlags_None);
+}
+
+// Button to close a window
+bool ImGui::CloseButton(ImGuiID id, const ImVec2& pos)
+{
+    ImGuiContext& g = *GImGui;
+    ImGuiWindow* window = g.CurrentWindow;
+
+    // Tweak 1: Shrink hit-testing area if button covers an abnormally large proportion of the visible region. That's in order to facilitate moving the window away. (#3825)
+    // This may better be applied as a general hit-rect reduction mechanism for all widgets to ensure the area to move window is always accessible?
+    const ImRect bb(pos, pos + ImVec2(g.FontSize, g.FontSize) + g.Style.FramePadding * 2.0f);
+    ImRect bb_interact = bb;
+    const float area_to_visible_ratio = window->OuterRectClipped.GetArea() / bb.GetArea();
+    if (area_to_visible_ratio < 1.5f)
+        bb_interact.Expand(ImFloor(bb_interact.GetSize() * -0.25f));
+
+    // Tweak 2: We intentionally allow interaction when clipped so that a mechanical Alt,Right,Activate sequence can always close a window.
+    // (this isn't the regular behavior of buttons, but it doesn't affect the user much because navigation tends to keep items visible).
+    bool is_clipped = !ItemAdd(bb_interact, id);
+
+    bool hovered, held;
+    bool pressed = ButtonBehavior(bb_interact, id, &hovered, &held);
+    if (is_clipped)
+        return pressed;
+
+    // Render
+    // FIXME: Clarify this mess
+    ImU32 col = GetColorU32(held ? ImGuiCol_ButtonActive : ImGuiCol_ButtonHovered);
+    ImVec2 center = bb.GetCenter();
+    if (hovered)
+        window->DrawList->AddCircleFilled(center, ImMax(2.0f, g.FontSize * 0.5f + 1.0f), col, 12);
+
+    float cross_extent = g.FontSize * 0.5f * 0.7071f - 1.0f;
+    ImU32 cross_col = GetColorU32(ImGuiCol_Text);
+    center -= ImVec2(0.5f, 0.5f);
+    window->DrawList->AddLine(center + ImVec2(+cross_extent, +cross_extent), center + ImVec2(-cross_extent, -cross_extent), cross_col, 1.0f);
+    window->DrawList->AddLine(center + ImVec2(+cross_extent, -cross_extent), center + ImVec2(-cross_extent, +cross_extent), cross_col, 1.0f);
+
+    return pressed;
+}
+
+bool ImGui::CollapseButton(ImGuiID id, const ImVec2& pos)
+{
+    ImGuiContext& g = *GImGui;
+    ImGuiWindow* window = g.CurrentWindow;
+
+    ImRect bb(pos, pos + ImVec2(g.FontSize, g.FontSize) + g.Style.FramePadding * 2.0f);
+    ItemAdd(bb, id);
+    bool hovered, held;
+    bool pressed = ButtonBehavior(bb, id, &hovered, &held, ImGuiButtonFlags_None);
+
+    // Render
+    ImU32 bg_col = GetColorU32((held && hovered) ? ImGuiCol_ButtonActive : hovered ? ImGuiCol_ButtonHovered : ImGuiCol_Button);
+    ImU32 text_col = GetColorU32(ImGuiCol_Text);
+    if (hovered || held)
+        window->DrawList->AddCircleFilled(bb.GetCenter()/*+ ImVec2(0.0f, -0.5f)*/, g.FontSize * 0.5f + 1.0f, bg_col, 12);
+    RenderArrow(window->DrawList, bb.Min + g.Style.FramePadding, text_col, window->Collapsed ? ImGuiDir_Right : ImGuiDir_Down, 1.0f);
+
+    // Switch to moving the window after mouse is moved beyond the initial drag threshold
+    if (IsItemActive() && IsMouseDragging(0))
+        StartMouseMovingWindow(window);
+
+    return pressed;
+}
+
+ImGuiID ImGui::GetWindowScrollbarID(ImGuiWindow* window, ImGuiAxis axis)
+{
+    return window->GetID(axis == ImGuiAxis_X ? "#SCROLLX" : "#SCROLLY");
+}
+
+// Return scrollbar rectangle, must only be called for corresponding axis if window->ScrollbarX/Y is set.
+ImRect ImGui::GetWindowScrollbarRect(ImGuiWindow* window, ImGuiAxis axis)
+{
+    const ImRect outer_rect = window->Rect();
+    const ImRect inner_rect = window->InnerRect;
+    const float border_size = window->WindowBorderSize;
+    const float scrollbar_size = window->ScrollbarSizes[axis ^ 1]; // (ScrollbarSizes.x = width of Y scrollbar; ScrollbarSizes.y = height of X scrollbar)
+    IM_ASSERT(scrollbar_size > 0.0f);
+    if (axis == ImGuiAxis_X)
+        return ImRect(inner_rect.Min.x, ImMax(outer_rect.Min.y, outer_rect.Max.y - border_size - scrollbar_size), inner_rect.Max.x, outer_rect.Max.y);
+    else
+        return ImRect(ImMax(outer_rect.Min.x, outer_rect.Max.x - border_size - scrollbar_size), inner_rect.Min.y, outer_rect.Max.x, inner_rect.Max.y);
+}
+
+void ImGui::Scrollbar(ImGuiAxis axis)
+{
+    ImGuiContext& g = *GImGui;
+    ImGuiWindow* window = g.CurrentWindow;
+    const ImGuiID id = GetWindowScrollbarID(window, axis);
+
+    // Calculate scrollbar bounding box
+    ImRect bb = GetWindowScrollbarRect(window, axis);
+    ImDrawFlags rounding_corners = ImDrawFlags_RoundCornersNone;
+    if (axis == ImGuiAxis_X)
+    {
+        rounding_corners |= ImDrawFlags_RoundCornersBottomLeft;
+        if (!window->ScrollbarY)
+            rounding_corners |= ImDrawFlags_RoundCornersBottomRight;
+    }
+    else
+    {
+        if ((window->Flags & ImGuiWindowFlags_NoTitleBar) && !(window->Flags & ImGuiWindowFlags_MenuBar))
+            rounding_corners |= ImDrawFlags_RoundCornersTopRight;
+        if (!window->ScrollbarX)
+            rounding_corners |= ImDrawFlags_RoundCornersBottomRight;
+    }
+    float size_avail = window->InnerRect.Max[axis] - window->InnerRect.Min[axis];
+    float size_contents = window->ContentSize[axis] + window->WindowPadding[axis] * 2.0f;
+    ImS64 scroll = (ImS64)window->Scroll[axis];
+    ScrollbarEx(bb, id, axis, &scroll, (ImS64)size_avail, (ImS64)size_contents, rounding_corners);
+    window->Scroll[axis] = (float)scroll;
+}
+
+// Vertical/Horizontal scrollbar
+// The entire piece of code below is rather confusing because:
+// - We handle absolute seeking (when first clicking outside the grab) and relative manipulation (afterward or when clicking inside the grab)
+// - We store values as normalized ratio and in a form that allows the window content to change while we are holding on a scrollbar
+// - We handle both horizontal and vertical scrollbars, which makes the terminology not ideal.
+// Still, the code should probably be made simpler..
+bool ImGui::ScrollbarEx(const ImRect& bb_frame, ImGuiID id, ImGuiAxis axis, ImS64* p_scroll_v, ImS64 size_avail_v, ImS64 size_contents_v, ImDrawFlags flags)
+{
+    ImGuiContext& g = *GImGui;
+    ImGuiWindow* window = g.CurrentWindow;
+    if (window->SkipItems)
+        return false;
+
+    KeepAliveID(id);
+
+    const float bb_frame_width = bb_frame.GetWidth();
+    const float bb_frame_height = bb_frame.GetHeight();
+    if (bb_frame_width <= 0.0f || bb_frame_height <= 0.0f)
+        return false;
+
+    // When we are too small, start hiding and disabling the grab (this reduce visual noise on very small window and facilitate using the window resize grab)
+    float alpha = 1.0f;
+    if ((axis == ImGuiAxis_Y) && bb_frame_height < g.FontSize + g.Style.FramePadding.y * 2.0f)
+        alpha = ImSaturate((bb_frame_height - g.FontSize) / (g.Style.FramePadding.y * 2.0f));
+    if (alpha <= 0.0f)
+        return false;
+
+    const ImGuiStyle& style = g.Style;
+    const bool allow_interaction = (alpha >= 1.0f);
+
+    ImRect bb = bb_frame;
+    bb.Expand(ImVec2(-ImClamp(IM_FLOOR((bb_frame_width - 2.0f) * 0.5f), 0.0f, 3.0f), -ImClamp(IM_FLOOR((bb_frame_height - 2.0f) * 0.5f), 0.0f, 3.0f)));
+
+    // V denote the main, longer axis of the scrollbar (= height for a vertical scrollbar)
+    const float scrollbar_size_v = (axis == ImGuiAxis_X) ? bb.GetWidth() : bb.GetHeight();
+
+    // Calculate the height of our grabbable box. It generally represent the amount visible (vs the total scrollable amount)
+    // But we maintain a minimum size in pixel to allow for the user to still aim inside.
+    IM_ASSERT(ImMax(size_contents_v, size_avail_v) > 0.0f); // Adding this assert to check if the ImMax(XXX,1.0f) is still needed. PLEASE CONTACT ME if this triggers.
+    const ImS64 win_size_v = ImMax(ImMax(size_contents_v, size_avail_v), (ImS64)1);
+    const float grab_h_pixels = ImClamp(scrollbar_size_v * ((float)size_avail_v / (float)win_size_v), style.GrabMinSize, scrollbar_size_v);
+    const float grab_h_norm = grab_h_pixels / scrollbar_size_v;
+
+    // Handle input right away. None of the code of Begin() is relying on scrolling position before calling Scrollbar().
+    bool held = false;
+    bool hovered = false;
+    ButtonBehavior(bb, id, &hovered, &held, ImGuiButtonFlags_NoNavFocus);
+
+    const ImS64 scroll_max = ImMax((ImS64)1, size_contents_v - size_avail_v);
+    float scroll_ratio = ImSaturate((float)*p_scroll_v / (float)scroll_max);
+    float grab_v_norm = scroll_ratio * (scrollbar_size_v - grab_h_pixels) / scrollbar_size_v; // Grab position in normalized space
+    if (held && allow_interaction && grab_h_norm < 1.0f)
+    {
+        const float scrollbar_pos_v = bb.Min[axis];
+        const float mouse_pos_v = g.IO.MousePos[axis];
+
+        // Click position in scrollbar normalized space (0.0f->1.0f)
+        const float clicked_v_norm = ImSaturate((mouse_pos_v - scrollbar_pos_v) / scrollbar_size_v);
+        SetHoveredID(id);
+
+        bool seek_absolute = false;
+        if (g.ActiveIdIsJustActivated)
+        {
+            // On initial click calculate the distance between mouse and the center of the grab
+            seek_absolute = (clicked_v_norm < grab_v_norm || clicked_v_norm > grab_v_norm + grab_h_norm);
+            if (seek_absolute)
+                g.ScrollbarClickDeltaToGrabCenter = 0.0f;
+            else
+                g.ScrollbarClickDeltaToGrabCenter = clicked_v_norm - grab_v_norm - grab_h_norm * 0.5f;
+        }
+
+        // Apply scroll (p_scroll_v will generally point on one member of window->Scroll)
+        // It is ok to modify Scroll here because we are being called in Begin() after the calculation of ContentSize and before setting up our starting position
+        const float scroll_v_norm = ImSaturate((clicked_v_norm - g.ScrollbarClickDeltaToGrabCenter - grab_h_norm * 0.5f) / (1.0f - grab_h_norm));
+        *p_scroll_v = (ImS64)(scroll_v_norm * scroll_max);
+
+        // Update values for rendering
+        scroll_ratio = ImSaturate((float)*p_scroll_v / (float)scroll_max);
+        grab_v_norm = scroll_ratio * (scrollbar_size_v - grab_h_pixels) / scrollbar_size_v;
+
+        // Update distance to grab now that we have seeked and saturated
+        if (seek_absolute)
+            g.ScrollbarClickDeltaToGrabCenter = clicked_v_norm - grab_v_norm - grab_h_norm * 0.5f;
+    }
+
+    // Render
+    const ImU32 bg_col = GetColorU32(ImGuiCol_ScrollbarBg);
+    const ImU32 grab_col = GetColorU32(held ? ImGuiCol_ScrollbarGrabActive : hovered ? ImGuiCol_ScrollbarGrabHovered : ImGuiCol_ScrollbarGrab, alpha);
+    window->DrawList->AddRectFilled(bb_frame.Min, bb_frame.Max, bg_col, window->WindowRounding, flags);
+    ImRect grab_rect;
+    if (axis == ImGuiAxis_X)
+        grab_rect = ImRect(ImLerp(bb.Min.x, bb.Max.x, grab_v_norm), bb.Min.y, ImLerp(bb.Min.x, bb.Max.x, grab_v_norm) + grab_h_pixels, bb.Max.y);
+    else
+        grab_rect = ImRect(bb.Min.x, ImLerp(bb.Min.y, bb.Max.y, grab_v_norm), bb.Max.x, ImLerp(bb.Min.y, bb.Max.y, grab_v_norm) + grab_h_pixels);
+    window->DrawList->AddRectFilled(grab_rect.Min, grab_rect.Max, grab_col, style.ScrollbarRounding);
+
+    return held;
+}
+
+void ImGui::Image(ImTextureID user_texture_id, const ImVec2& size, const ImVec2& uv0, const ImVec2& uv1, const ImVec4& tint_col, const ImVec4& border_col)
+{
+    ImGuiWindow* window = GetCurrentWindow();
+    if (window->SkipItems)
+        return;
+
+    ImRect bb(window->DC.CursorPos, window->DC.CursorPos + size);
+    if (border_col.w > 0.0f)
+        bb.Max += ImVec2(2, 2);
+    ItemSize(bb);
+    if (!ItemAdd(bb, 0))
+        return;
+
+    if (border_col.w > 0.0f)
+    {
+        window->DrawList->AddRect(bb.Min, bb.Max, GetColorU32(border_col), 0.0f);
+        window->DrawList->AddImage(user_texture_id, bb.Min + ImVec2(1, 1), bb.Max - ImVec2(1, 1), uv0, uv1, GetColorU32(tint_col));
+    }
+    else
+    {
+        window->DrawList->AddImage(user_texture_id, bb.Min, bb.Max, uv0, uv1, GetColorU32(tint_col));
+    }
+}
+
+// ImageButton() is flawed as 'id' is always derived from 'texture_id' (see #2464 #1390)
+// We provide this internal helper to write your own variant while we figure out how to redesign the public ImageButton() API.
+bool ImGui::ImageButtonEx(ImGuiID id, ImTextureID texture_id, const ImVec2& size, const ImVec2& uv0, const ImVec2& uv1, const ImVec2& padding, const ImVec4& bg_col, const ImVec4& tint_col)
+{
+    ImGuiContext& g = *GImGui;
+    ImGuiWindow* window = GetCurrentWindow();
+    if (window->SkipItems)
+        return false;
+
+    const ImRect bb(window->DC.CursorPos, window->DC.CursorPos + size + padding * 2);
+    ItemSize(bb);
+    if (!ItemAdd(bb, id))
+        return false;
+
+    bool hovered, held;
+    bool pressed = ButtonBehavior(bb, id, &hovered, &held);
+
+    // Render
+    const ImU32 col = GetColorU32((held && hovered) ? ImGuiCol_ButtonActive : hovered ? ImGuiCol_ButtonHovered : ImGuiCol_Button);
+    RenderNavHighlight(bb, id);
+    RenderFrame(bb.Min, bb.Max, col, true, ImClamp((float)ImMin(padding.x, padding.y), 0.0f, g.Style.FrameRounding));
+    if (bg_col.w > 0.0f)
+        window->DrawList->AddRectFilled(bb.Min + padding, bb.Max - padding, GetColorU32(bg_col));
+    window->DrawList->AddImage(texture_id, bb.Min + padding, bb.Max - padding, uv0, uv1, GetColorU32(tint_col));
+
+    return pressed;
+}
+
+// frame_padding < 0: uses FramePadding from style (default)
+// frame_padding = 0: no framing
+// frame_padding > 0: set framing size
+bool ImGui::ImageButton(ImTextureID user_texture_id, const ImVec2& size, const ImVec2& uv0, const ImVec2& uv1, int frame_padding, const ImVec4& bg_col, const ImVec4& tint_col)
+{
+    ImGuiContext& g = *GImGui;
+    ImGuiWindow* window = g.CurrentWindow;
+    if (window->SkipItems)
+        return false;
+
+    // Default to using texture ID as ID. User can still push string/integer prefixes.
+    PushID((void*)(intptr_t)user_texture_id);
+    const ImGuiID id = window->GetID("#image");
+    PopID();
+
+    const ImVec2 padding = (frame_padding >= 0) ? ImVec2((float)frame_padding, (float)frame_padding) : g.Style.FramePadding;
+    return ImageButtonEx(id, user_texture_id, size, uv0, uv1, padding, bg_col, tint_col);
+}
+
+bool ImGui::Checkbox(const char* label, bool* v)
+{
+    ImGuiWindow* window = GetCurrentWindow();
+    if (window->SkipItems)
+        return false;
+
+    ImGuiContext& g = *GImGui;
+    const ImGuiStyle& style = g.Style;
+    const ImGuiID id = window->GetID(label);
+    const ImVec2 label_size = CalcTextSize(label, NULL, true);
+
+    const float square_sz = GetFrameHeight();
+    const ImVec2 pos = window->DC.CursorPos;
+    const ImRect total_bb(pos, pos + ImVec2(square_sz + (label_size.x > 0.0f ? style.ItemInnerSpacing.x + label_size.x : 0.0f), label_size.y + style.FramePadding.y * 2.0f));
+    ItemSize(total_bb, style.FramePadding.y);
+    if (!ItemAdd(total_bb, id))
+    {
+        IMGUI_TEST_ENGINE_ITEM_INFO(id, label, g.LastItemData.StatusFlags | ImGuiItemStatusFlags_Checkable | (*v ? ImGuiItemStatusFlags_Checked : 0));
+        return false;
+    }
+
+    bool hovered, held;
+    bool pressed = ButtonBehavior(total_bb, id, &hovered, &held);
+    if (pressed)
+    {
+        *v = !(*v);
+        MarkItemEdited(id);
+    }
+
+    const ImRect check_bb(pos, pos + ImVec2(square_sz, square_sz));
+    RenderNavHighlight(total_bb, id);
+    RenderFrame(check_bb.Min, check_bb.Max, GetColorU32((held && hovered) ? ImGuiCol_FrameBgActive : hovered ? ImGuiCol_FrameBgHovered : ImGuiCol_FrameBg), true, style.FrameRounding);
+    ImU32 check_col = GetColorU32(ImGuiCol_CheckMark);
+    bool mixed_value = (g.LastItemData.InFlags & ImGuiItemFlags_MixedValue) != 0;
+    if (mixed_value)
+    {
+        // Undocumented tristate/mixed/indeterminate checkbox (#2644)
+        // This may seem awkwardly designed because the aim is to make ImGuiItemFlags_MixedValue supported by all widgets (not just checkbox)
+        ImVec2 pad(ImMax(1.0f, IM_FLOOR(square_sz / 3.6f)), ImMax(1.0f, IM_FLOOR(square_sz / 3.6f)));
+        window->DrawList->AddRectFilled(check_bb.Min + pad, check_bb.Max - pad, check_col, style.FrameRounding);
+    }
+    else if (*v)
+    {
+        const float pad = ImMax(1.0f, IM_FLOOR(square_sz / 6.0f));
+        RenderCheckMark(window->DrawList, check_bb.Min + ImVec2(pad, pad), check_col, square_sz - pad * 2.0f);
+    }
+
+    ImVec2 label_pos = ImVec2(check_bb.Max.x + style.ItemInnerSpacing.x, check_bb.Min.y + style.FramePadding.y);
+    if (g.LogEnabled)
+        LogRenderedText(&label_pos, mixed_value ? "[~]" : *v ? "[x]" : "[ ]");
+    if (label_size.x > 0.0f)
+        RenderText(label_pos, label);
+
+    IMGUI_TEST_ENGINE_ITEM_INFO(id, label, g.LastItemData.StatusFlags | ImGuiItemStatusFlags_Checkable | (*v ? ImGuiItemStatusFlags_Checked : 0));
+    return pressed;
+}
+
+template<typename T>
+bool ImGui::CheckboxFlagsT(const char* label, T* flags, T flags_value)
+{
+    bool all_on = (*flags & flags_value) == flags_value;
+    bool any_on = (*flags & flags_value) != 0;
+    bool pressed;
+    if (!all_on && any_on)
+    {
+        ImGuiContext& g = *GImGui;
+        ImGuiItemFlags backup_item_flags = g.CurrentItemFlags;
+        g.CurrentItemFlags |= ImGuiItemFlags_MixedValue;
+        pressed = Checkbox(label, &all_on);
+        g.CurrentItemFlags = backup_item_flags;
+    }
+    else
+    {
+        pressed = Checkbox(label, &all_on);
+
+    }
+    if (pressed)
+    {
+        if (all_on)
+            *flags |= flags_value;
+        else
+            *flags &= ~flags_value;
+    }
+    return pressed;
+}
+
+bool ImGui::CheckboxFlags(const char* label, int* flags, int flags_value)
+{
+    return CheckboxFlagsT(label, flags, flags_value);
+}
+
+bool ImGui::CheckboxFlags(const char* label, unsigned int* flags, unsigned int flags_value)
+{
+    return CheckboxFlagsT(label, flags, flags_value);
+}
+
+bool ImGui::CheckboxFlags(const char* label, ImS64* flags, ImS64 flags_value)
+{
+    return CheckboxFlagsT(label, flags, flags_value);
+}
+
+bool ImGui::CheckboxFlags(const char* label, ImU64* flags, ImU64 flags_value)
+{
+    return CheckboxFlagsT(label, flags, flags_value);
+}
+
+bool ImGui::RadioButton(const char* label, bool active)
+{
+    ImGuiWindow* window = GetCurrentWindow();
+    if (window->SkipItems)
+        return false;
+
+    ImGuiContext& g = *GImGui;
+    const ImGuiStyle& style = g.Style;
+    const ImGuiID id = window->GetID(label);
+    const ImVec2 label_size = CalcTextSize(label, NULL, true);
+
+    const float square_sz = GetFrameHeight();
+    const ImVec2 pos = window->DC.CursorPos;
+    const ImRect check_bb(pos, pos + ImVec2(square_sz, square_sz));
+    const ImRect total_bb(pos, pos + ImVec2(square_sz + (label_size.x > 0.0f ? style.ItemInnerSpacing.x + label_size.x : 0.0f), label_size.y + style.FramePadding.y * 2.0f));
+    ItemSize(total_bb, style.FramePadding.y);
+    if (!ItemAdd(total_bb, id))
+        return false;
+
+    ImVec2 center = check_bb.GetCenter();
+    center.x = IM_ROUND(center.x);
+    center.y = IM_ROUND(center.y);
+    const float radius = (square_sz - 1.0f) * 0.5f;
+
+    bool hovered, held;
+    bool pressed = ButtonBehavior(total_bb, id, &hovered, &held);
+    if (pressed)
+        MarkItemEdited(id);
+
+    RenderNavHighlight(total_bb, id);
+    window->DrawList->AddCircleFilled(center, radius, GetColorU32((held && hovered) ? ImGuiCol_FrameBgActive : hovered ? ImGuiCol_FrameBgHovered : ImGuiCol_FrameBg), 16);
+    if (active)
+    {
+        const float pad = ImMax(1.0f, IM_FLOOR(square_sz / 6.0f));
+        window->DrawList->AddCircleFilled(center, radius - pad, GetColorU32(ImGuiCol_CheckMark), 16);
+    }
+
+    if (style.FrameBorderSize > 0.0f)
+    {
+        window->DrawList->AddCircle(center + ImVec2(1, 1), radius, GetColorU32(ImGuiCol_BorderShadow), 16, style.FrameBorderSize);
+        window->DrawList->AddCircle(center, radius, GetColorU32(ImGuiCol_Border), 16, style.FrameBorderSize);
+    }
+
+    ImVec2 label_pos = ImVec2(check_bb.Max.x + style.ItemInnerSpacing.x, check_bb.Min.y + style.FramePadding.y);
+    if (g.LogEnabled)
+        LogRenderedText(&label_pos, active ? "(x)" : "( )");
+    if (label_size.x > 0.0f)
+        RenderText(label_pos, label);
+
+    IMGUI_TEST_ENGINE_ITEM_INFO(id, label, g.LastItemData.StatusFlags);
+    return pressed;
+}
+
+// FIXME: This would work nicely if it was a public template, e.g. 'template<T> RadioButton(const char* label, T* v, T v_button)', but I'm not sure how we would expose it..
+bool ImGui::RadioButton(const char* label, int* v, int v_button)
+{
+    const bool pressed = RadioButton(label, *v == v_button);
+    if (pressed)
+        *v = v_button;
+    return pressed;
+}
+
+// size_arg (for each axis) < 0.0f: align to end, 0.0f: auto, > 0.0f: specified size
+void ImGui::ProgressBar(float fraction, const ImVec2& size_arg, const char* overlay)
+{
+    ImGuiWindow* window = GetCurrentWindow();
+    if (window->SkipItems)
+        return;
+
+    ImGuiContext& g = *GImGui;
+    const ImGuiStyle& style = g.Style;
+
+    ImVec2 pos = window->DC.CursorPos;
+    ImVec2 size = CalcItemSize(size_arg, CalcItemWidth(), g.FontSize + style.FramePadding.y * 2.0f);
+    ImRect bb(pos, pos + size);
+    ItemSize(size, style.FramePadding.y);
+    if (!ItemAdd(bb, 0))
+        return;
+
+    // Render
+    fraction = ImSaturate(fraction);
+    RenderFrame(bb.Min, bb.Max, GetColorU32(ImGuiCol_FrameBg), true, style.FrameRounding);
+    bb.Expand(ImVec2(-style.FrameBorderSize, -style.FrameBorderSize));
+    const ImVec2 fill_br = ImVec2(ImLerp(bb.Min.x, bb.Max.x, fraction), bb.Max.y);
+    RenderRectFilledRangeH(window->DrawList, bb, GetColorU32(ImGuiCol_PlotHistogram), 0.0f, fraction, style.FrameRounding);
+
+    // Default displaying the fraction as percentage string, but user can override it
+    char overlay_buf[32];
+    if (!overlay)
+    {
+        ImFormatString(overlay_buf, IM_ARRAYSIZE(overlay_buf), "%.0f%%", fraction * 100 + 0.01f);
+        overlay = overlay_buf;
+    }
+
+    ImVec2 overlay_size = CalcTextSize(overlay, NULL);
+    if (overlay_size.x > 0.0f)
+        RenderTextClipped(ImVec2(ImClamp(fill_br.x + style.ItemSpacing.x, bb.Min.x, bb.Max.x - overlay_size.x - style.ItemInnerSpacing.x), bb.Min.y), bb.Max, overlay, NULL, &overlay_size, ImVec2(0.0f, 0.5f), &bb);
+}
+
+void ImGui::Bullet()
+{
+    ImGuiWindow* window = GetCurrentWindow();
+    if (window->SkipItems)
+        return;
+
+    ImGuiContext& g = *GImGui;
+    const ImGuiStyle& style = g.Style;
+    const float line_height = ImMax(ImMin(window->DC.CurrLineSize.y, g.FontSize + style.FramePadding.y * 2), g.FontSize);
+    const ImRect bb(window->DC.CursorPos, window->DC.CursorPos + ImVec2(g.FontSize, line_height));
+    ItemSize(bb);
+    if (!ItemAdd(bb, 0))
+    {
+        SameLine(0, style.FramePadding.x * 2);
+        return;
+    }
+
+    // Render and stay on same line
+    ImU32 text_col = GetColorU32(ImGuiCol_Text);
+    RenderBullet(window->DrawList, bb.Min + ImVec2(style.FramePadding.x + g.FontSize * 0.5f, line_height * 0.5f), text_col);
+    SameLine(0, style.FramePadding.x * 2.0f);
+}
+
+//-------------------------------------------------------------------------
+// [SECTION] Widgets: Low-level Layout helpers
+//-------------------------------------------------------------------------
+// - Spacing()
+// - Dummy()
+// - NewLine()
+// - AlignTextToFramePadding()
+// - SeparatorEx() [Internal]
+// - Separator()
+// - SplitterBehavior() [Internal]
+// - ShrinkWidths() [Internal]
+//-------------------------------------------------------------------------
+
+void ImGui::Spacing()
+{
+    ImGuiWindow* window = GetCurrentWindow();
+    if (window->SkipItems)
+        return;
+    ItemSize(ImVec2(0, 0));
+}
+
+void ImGui::Dummy(const ImVec2& size)
+{
+    ImGuiWindow* window = GetCurrentWindow();
+    if (window->SkipItems)
+        return;
+
+    const ImRect bb(window->DC.CursorPos, window->DC.CursorPos + size);
+    ItemSize(size);
+    ItemAdd(bb, 0);
+}
+
+void ImGui::NewLine()
+{
+    ImGuiWindow* window = GetCurrentWindow();
+    if (window->SkipItems)
+        return;
+
+    ImGuiContext& g = *GImGui;
+    const ImGuiLayoutType backup_layout_type = window->DC.LayoutType;
+    window->DC.LayoutType = ImGuiLayoutType_Vertical;
+    window->DC.IsSameLine = false;
+    if (window->DC.CurrLineSize.y > 0.0f)     // In the event that we are on a line with items that is smaller that FontSize high, we will preserve its height.
+        ItemSize(ImVec2(0, 0));
+    else
+        ItemSize(ImVec2(0.0f, g.FontSize));
+    window->DC.LayoutType = backup_layout_type;
+}
+
+void ImGui::AlignTextToFramePadding()
+{
+    ImGuiWindow* window = GetCurrentWindow();
+    if (window->SkipItems)
+        return;
+
+    ImGuiContext& g = *GImGui;
+    window->DC.CurrLineSize.y = ImMax(window->DC.CurrLineSize.y, g.FontSize + g.Style.FramePadding.y * 2);
+    window->DC.CurrLineTextBaseOffset = ImMax(window->DC.CurrLineTextBaseOffset, g.Style.FramePadding.y);
+}
+
+// Horizontal/vertical separating line
+void ImGui::SeparatorEx(ImGuiSeparatorFlags flags)
+{
+    ImGuiWindow* window = GetCurrentWindow();
+    if (window->SkipItems)
+        return;
+
+    ImGuiContext& g = *GImGui;
+    IM_ASSERT(ImIsPowerOfTwo(flags & (ImGuiSeparatorFlags_Horizontal | ImGuiSeparatorFlags_Vertical)));   // Check that only 1 option is selected
+
+    float thickness_draw = 1.0f;
+    float thickness_layout = 0.0f;
+    if (flags & ImGuiSeparatorFlags_Vertical)
+    {
+        // Vertical separator, for menu bars (use current line height). Not exposed because it is misleading and it doesn't have an effect on regular layout.
+        float y1 = window->DC.CursorPos.y;
+        float y2 = window->DC.CursorPos.y + window->DC.CurrLineSize.y;
+        const ImRect bb(ImVec2(window->DC.CursorPos.x, y1), ImVec2(window->DC.CursorPos.x + thickness_draw, y2));
+        ItemSize(ImVec2(thickness_layout, 0.0f));
+        if (!ItemAdd(bb, 0))
+            return;
+
+        // Draw
+        window->DrawList->AddLine(ImVec2(bb.Min.x, bb.Min.y), ImVec2(bb.Min.x, bb.Max.y), GetColorU32(ImGuiCol_Separator));
+        if (g.LogEnabled)
+            LogText(" |");
+    }
+    else if (flags & ImGuiSeparatorFlags_Horizontal)
+    {
+        // Horizontal Separator
+        float x1 = window->Pos.x;
+        float x2 = window->Pos.x + window->Size.x;
+
+        // FIXME-WORKRECT: old hack (#205) until we decide of consistent behavior with WorkRect/Indent and Separator
+        if (g.GroupStack.Size > 0 && g.GroupStack.back().WindowID == window->ID)
+            x1 += window->DC.Indent.x;
+
+        // FIXME-WORKRECT: In theory we should simply be using WorkRect.Min.x/Max.x everywhere but it isn't aesthetically what we want,
+        // need to introduce a variant of WorkRect for that purpose. (#4787)
+        if (ImGuiTable* table = g.CurrentTable)
+        {
+            x1 = table->Columns[table->CurrentColumn].MinX;
+            x2 = table->Columns[table->CurrentColumn].MaxX;
+        }
+
+        ImGuiOldColumns* columns = (flags & ImGuiSeparatorFlags_SpanAllColumns) ? window->DC.CurrentColumns : NULL;
+        if (columns)
+            PushColumnsBackground();
+
+        // We don't provide our width to the layout so that it doesn't get feed back into AutoFit
+        // FIXME: This prevents ->CursorMaxPos based bounding box evaluation from working (e.g. TableEndCell)
+        const ImRect bb(ImVec2(x1, window->DC.CursorPos.y), ImVec2(x2, window->DC.CursorPos.y + thickness_draw));
+        ItemSize(ImVec2(0.0f, thickness_layout));
+        const bool item_visible = ItemAdd(bb, 0);
+        if (item_visible)
+        {
+            // Draw
+            window->DrawList->AddLine(bb.Min, ImVec2(bb.Max.x, bb.Min.y), GetColorU32(ImGuiCol_Separator));
+            if (g.LogEnabled)
+                LogRenderedText(&bb.Min, "--------------------------------\n");
+
+        }
+        if (columns)
+        {
+            PopColumnsBackground();
+            columns->LineMinY = window->DC.CursorPos.y;
+        }
+    }
+}
+
+void ImGui::Separator()
+{
+    ImGuiContext& g = *GImGui;
+    ImGuiWindow* window = g.CurrentWindow;
+    if (window->SkipItems)
+        return;
+
+    // Those flags should eventually be overridable by the user
+    ImGuiSeparatorFlags flags = (window->DC.LayoutType == ImGuiLayoutType_Horizontal) ? ImGuiSeparatorFlags_Vertical : ImGuiSeparatorFlags_Horizontal;
+    flags |= ImGuiSeparatorFlags_SpanAllColumns; // NB: this only applies to legacy Columns() api as they relied on Separator() a lot.
+    SeparatorEx(flags);
+}
+
+// Using 'hover_visibility_delay' allows us to hide the highlight and mouse cursor for a short time, which can be convenient to reduce visual noise.
+bool ImGui::SplitterBehavior(const ImRect& bb, ImGuiID id, ImGuiAxis axis, float* size1, float* size2, float min_size1, float min_size2, float hover_extend, float hover_visibility_delay)
+{
+    ImGuiContext& g = *GImGui;
+    ImGuiWindow* window = g.CurrentWindow;
+
+    const ImGuiItemFlags item_flags_backup = g.CurrentItemFlags;
+    g.CurrentItemFlags |= ImGuiItemFlags_NoNav | ImGuiItemFlags_NoNavDefaultFocus;
+    bool item_add = ItemAdd(bb, id);
+    g.CurrentItemFlags = item_flags_backup;
+    if (!item_add)
+        return false;
+
+    bool hovered, held;
+    ImRect bb_interact = bb;
+    bb_interact.Expand(axis == ImGuiAxis_Y ? ImVec2(0.0f, hover_extend) : ImVec2(hover_extend, 0.0f));
+    ButtonBehavior(bb_interact, id, &hovered, &held, ImGuiButtonFlags_FlattenChildren | ImGuiButtonFlags_AllowItemOverlap);
+    if (hovered)
+        g.LastItemData.StatusFlags |= ImGuiItemStatusFlags_HoveredRect; // for IsItemHovered(), because bb_interact is larger than bb
+    if (g.ActiveId != id)
+        SetItemAllowOverlap();
+
+    if (held || (hovered && g.HoveredIdPreviousFrame == id && g.HoveredIdTimer >= hover_visibility_delay))
+        SetMouseCursor(axis == ImGuiAxis_Y ? ImGuiMouseCursor_ResizeNS : ImGuiMouseCursor_ResizeEW);
+
+    ImRect bb_render = bb;
+    if (held)
+    {
+        ImVec2 mouse_delta_2d = g.IO.MousePos - g.ActiveIdClickOffset - bb_interact.Min;
+        float mouse_delta = (axis == ImGuiAxis_Y) ? mouse_delta_2d.y : mouse_delta_2d.x;
+
+        // Minimum pane size
+        float size_1_maximum_delta = ImMax(0.0f, *size1 - min_size1);
+        float size_2_maximum_delta = ImMax(0.0f, *size2 - min_size2);
+        if (mouse_delta < -size_1_maximum_delta)
+            mouse_delta = -size_1_maximum_delta;
+        if (mouse_delta > size_2_maximum_delta)
+            mouse_delta = size_2_maximum_delta;
+
+        // Apply resize
+        if (mouse_delta != 0.0f)
+        {
+            if (mouse_delta < 0.0f)
+                IM_ASSERT(*size1 + mouse_delta >= min_size1);
+            if (mouse_delta > 0.0f)
+                IM_ASSERT(*size2 - mouse_delta >= min_size2);
+            *size1 += mouse_delta;
+            *size2 -= mouse_delta;
+            bb_render.Translate((axis == ImGuiAxis_X) ? ImVec2(mouse_delta, 0.0f) : ImVec2(0.0f, mouse_delta));
+            MarkItemEdited(id);
+        }
+    }
+
+    // Render
+    const ImU32 col = GetColorU32(held ? ImGuiCol_SeparatorActive : (hovered && g.HoveredIdTimer >= hover_visibility_delay) ? ImGuiCol_SeparatorHovered : ImGuiCol_Separator);
+    window->DrawList->AddRectFilled(bb_render.Min, bb_render.Max, col, 0.0f);
+
+    return held;
+}
+
+static int IMGUI_CDECL ShrinkWidthItemComparer(const void* lhs, const void* rhs)
+{
+    const ImGuiShrinkWidthItem* a = (const ImGuiShrinkWidthItem*)lhs;
+    const ImGuiShrinkWidthItem* b = (const ImGuiShrinkWidthItem*)rhs;
+    if (int d = (int)(b->Width - a->Width))
+        return d;
+    return (b->Index - a->Index);
+}
+
+// Shrink excess width from a set of item, by removing width from the larger items first.
+// Set items Width to -1.0f to disable shrinking this item.
+void ImGui::ShrinkWidths(ImGuiShrinkWidthItem* items, int count, float width_excess)
+{
+    if (count == 1)
+    {
+        if (items[0].Width >= 0.0f)
+            items[0].Width = ImMax(items[0].Width - width_excess, 1.0f);
+        return;
+    }
+    ImQsort(items, (size_t)count, sizeof(ImGuiShrinkWidthItem), ShrinkWidthItemComparer);
+    int count_same_width = 1;
+    while (width_excess > 0.0f && count_same_width < count)
+    {
+        while (count_same_width < count && items[0].Width <= items[count_same_width].Width)
+            count_same_width++;
+        float max_width_to_remove_per_item = (count_same_width < count && items[count_same_width].Width >= 0.0f) ? (items[0].Width - items[count_same_width].Width) : (items[0].Width - 1.0f);
+        if (max_width_to_remove_per_item <= 0.0f)
+            break;
+        float width_to_remove_per_item = ImMin(width_excess / count_same_width, max_width_to_remove_per_item);
+        for (int item_n = 0; item_n < count_same_width; item_n++)
+            items[item_n].Width -= width_to_remove_per_item;
+        width_excess -= width_to_remove_per_item * count_same_width;
+    }
+
+    // Round width and redistribute remainder
+    // Ensure that e.g. the right-most tab of a shrunk tab-bar always reaches exactly at the same distance from the right-most edge of the tab bar separator.
+    width_excess = 0.0f;
+    for (int n = 0; n < count; n++)
+    {
+        float width_rounded = ImFloor(items[n].Width);
+        width_excess += items[n].Width - width_rounded;
+        items[n].Width = width_rounded;
+    }
+    while (width_excess > 0.0f)
+        for (int n = 0; n < count; n++)
+            if (items[n].Width + 1.0f <= items[n].InitialWidth)
+            {
+                items[n].Width += 1.0f;
+                width_excess -= 1.0f;
+            }
+}
+
+//-------------------------------------------------------------------------
+// [SECTION] Widgets: ComboBox
+//-------------------------------------------------------------------------
+// - CalcMaxPopupHeightFromItemCount() [Internal]
+// - BeginCombo()
+// - BeginComboPopup() [Internal]
+// - EndCombo()
+// - BeginComboPreview() [Internal]
+// - EndComboPreview() [Internal]
+// - Combo()
+//-------------------------------------------------------------------------
+
+static float CalcMaxPopupHeightFromItemCount(int items_count)
+{
+    ImGuiContext& g = *GImGui;
+    if (items_count <= 0)
+        return FLT_MAX;
+    return (g.FontSize + g.Style.ItemSpacing.y) * items_count - g.Style.ItemSpacing.y + (g.Style.WindowPadding.y * 2);
+}
+
+bool ImGui::BeginCombo(const char* label, const char* preview_value, ImGuiComboFlags flags)
+{
+    ImGuiContext& g = *GImGui;
+    ImGuiWindow* window = GetCurrentWindow();
+
+    ImGuiNextWindowDataFlags backup_next_window_data_flags = g.NextWindowData.Flags;
+    g.NextWindowData.ClearFlags(); // We behave like Begin() and need to consume those values
+    if (window->SkipItems)
+        return false;
+
+    const ImGuiStyle& style = g.Style;
+    const ImGuiID id = window->GetID(label);
+    IM_ASSERT((flags & (ImGuiComboFlags_NoArrowButton | ImGuiComboFlags_NoPreview)) != (ImGuiComboFlags_NoArrowButton | ImGuiComboFlags_NoPreview)); // Can't use both flags together
+
+    const float arrow_size = (flags & ImGuiComboFlags_NoArrowButton) ? 0.0f : GetFrameHeight();
+    const ImVec2 label_size = CalcTextSize(label, NULL, true);
+    const float w = (flags & ImGuiComboFlags_NoPreview) ? arrow_size : CalcItemWidth();
+    const ImRect bb(window->DC.CursorPos, window->DC.CursorPos + ImVec2(w, label_size.y + style.FramePadding.y * 2.0f));
+    const ImRect total_bb(bb.Min, bb.Max + ImVec2(label_size.x > 0.0f ? style.ItemInnerSpacing.x + label_size.x : 0.0f, 0.0f));
+    ItemSize(total_bb, style.FramePadding.y);
+    if (!ItemAdd(total_bb, id, &bb))
+        return false;
+
+    // Open on click
+    bool hovered, held;
+    bool pressed = ButtonBehavior(bb, id, &hovered, &held);
+    const ImGuiID popup_id = ImHashStr("##ComboPopup", 0, id);
+    bool popup_open = IsPopupOpen(popup_id, ImGuiPopupFlags_None);
+    if (pressed && !popup_open)
+    {
+        OpenPopupEx(popup_id, ImGuiPopupFlags_None);
+        popup_open = true;
+    }
+
+    // Render shape
+    const ImU32 frame_col = GetColorU32(hovered ? ImGuiCol_FrameBgHovered : ImGuiCol_FrameBg);
+    const float value_x2 = ImMax(bb.Min.x, bb.Max.x - arrow_size);
+    RenderNavHighlight(bb, id);
+    if (!(flags & ImGuiComboFlags_NoPreview))
+        window->DrawList->AddRectFilled(bb.Min, ImVec2(value_x2, bb.Max.y), frame_col, style.FrameRounding, (flags & ImGuiComboFlags_NoArrowButton) ? ImDrawFlags_RoundCornersAll : ImDrawFlags_RoundCornersLeft);
+    if (!(flags & ImGuiComboFlags_NoArrowButton))
+    {
+        ImU32 bg_col = GetColorU32((popup_open || hovered) ? ImGuiCol_ButtonHovered : ImGuiCol_Button);
+        ImU32 text_col = GetColorU32(ImGuiCol_Text);
+        window->DrawList->AddRectFilled(ImVec2(value_x2, bb.Min.y), bb.Max, bg_col, style.FrameRounding, (w <= arrow_size) ? ImDrawFlags_RoundCornersAll : ImDrawFlags_RoundCornersRight);
+        if (value_x2 + arrow_size - style.FramePadding.x <= bb.Max.x)
+            RenderArrow(window->DrawList, ImVec2(value_x2 + style.FramePadding.y, bb.Min.y + style.FramePadding.y), text_col, ImGuiDir_Down, 1.0f);
+    }
+    RenderFrameBorder(bb.Min, bb.Max, style.FrameRounding);
+
+    // Custom preview
+    if (flags & ImGuiComboFlags_CustomPreview)
+    {
+        g.ComboPreviewData.PreviewRect = ImRect(bb.Min.x, bb.Min.y, value_x2, bb.Max.y);
+        IM_ASSERT(preview_value == NULL || preview_value[0] == 0);
+        preview_value = NULL;
+    }
+
+    // Render preview and label
+    if (preview_value != NULL && !(flags & ImGuiComboFlags_NoPreview))
+    {
+        if (g.LogEnabled)
+            LogSetNextTextDecoration("{", "}");
+        RenderTextClipped(bb.Min + style.FramePadding, ImVec2(value_x2, bb.Max.y), preview_value, NULL, NULL);
+    }
+    if (label_size.x > 0)
+        RenderText(ImVec2(bb.Max.x + style.ItemInnerSpacing.x, bb.Min.y + style.FramePadding.y), label);
+
+    if (!popup_open)
+        return false;
+
+    g.NextWindowData.Flags = backup_next_window_data_flags;
+    return BeginComboPopup(popup_id, bb, flags);
+}
+
+bool ImGui::BeginComboPopup(ImGuiID popup_id, const ImRect& bb, ImGuiComboFlags flags)
+{
+    ImGuiContext& g = *GImGui;
+    if (!IsPopupOpen(popup_id, ImGuiPopupFlags_None))
+    {
+        g.NextWindowData.ClearFlags();
+        return false;
+    }
+
+    // Set popup size
+    float w = bb.GetWidth();
+    if (g.NextWindowData.Flags & ImGuiNextWindowDataFlags_HasSizeConstraint)
+    {
+        g.NextWindowData.SizeConstraintRect.Min.x = ImMax(g.NextWindowData.SizeConstraintRect.Min.x, w);
+    }
+    else
+    {
+        if ((flags & ImGuiComboFlags_HeightMask_) == 0)
+            flags |= ImGuiComboFlags_HeightRegular;
+        IM_ASSERT(ImIsPowerOfTwo(flags & ImGuiComboFlags_HeightMask_)); // Only one
+        int popup_max_height_in_items = -1;
+        if (flags & ImGuiComboFlags_HeightRegular)     popup_max_height_in_items = 8;
+        else if (flags & ImGuiComboFlags_HeightSmall)  popup_max_height_in_items = 4;
+        else if (flags & ImGuiComboFlags_HeightLarge)  popup_max_height_in_items = 20;
+        SetNextWindowSizeConstraints(ImVec2(w, 0.0f), ImVec2(FLT_MAX, CalcMaxPopupHeightFromItemCount(popup_max_height_in_items)));
+    }
+
+    // This is essentially a specialized version of BeginPopupEx()
+    char name[16];
+    ImFormatString(name, IM_ARRAYSIZE(name), "##Combo_%02d", g.BeginPopupStack.Size); // Recycle windows based on depth
+
+    // Set position given a custom constraint (peak into expected window size so we can position it)
+    // FIXME: This might be easier to express with an hypothetical SetNextWindowPosConstraints() function?
+    // FIXME: This might be moved to Begin() or at least around the same spot where Tooltips and other Popups are calling FindBestWindowPosForPopupEx()?
+    if (ImGuiWindow* popup_window = FindWindowByName(name))
+        if (popup_window->WasActive)
+        {
+            // Always override 'AutoPosLastDirection' to not leave a chance for a past value to affect us.
+            ImVec2 size_expected = CalcWindowNextAutoFitSize(popup_window);
+            popup_window->AutoPosLastDirection = (flags & ImGuiComboFlags_PopupAlignLeft) ? ImGuiDir_Left : ImGuiDir_Down; // Left = "Below, Toward Left", Down = "Below, Toward Right (default)"
+            ImRect r_outer = GetPopupAllowedExtentRect(popup_window);
+            ImVec2 pos = FindBestWindowPosForPopupEx(bb.GetBL(), size_expected, &popup_window->AutoPosLastDirection, r_outer, bb, ImGuiPopupPositionPolicy_ComboBox);
+            SetNextWindowPos(pos);
+        }
+
+    // We don't use BeginPopupEx() solely because we have a custom name string, which we could make an argument to BeginPopupEx()
+    ImGuiWindowFlags window_flags = ImGuiWindowFlags_AlwaysAutoResize | ImGuiWindowFlags_Popup | ImGuiWindowFlags_NoTitleBar | ImGuiWindowFlags_NoResize | ImGuiWindowFlags_NoSavedSettings | ImGuiWindowFlags_NoMove;
+    PushStyleVar(ImGuiStyleVar_WindowPadding, ImVec2(g.Style.FramePadding.x, g.Style.WindowPadding.y)); // Horizontally align ourselves with the framed text
+    bool ret = Begin(name, NULL, window_flags);
+    PopStyleVar();
+    if (!ret)
+    {
+        EndPopup();
+        IM_ASSERT(0);   // This should never happen as we tested for IsPopupOpen() above
+        return false;
+    }
+    return true;
+}
+
+void ImGui::EndCombo()
+{
+    EndPopup();
+}
+
+// Call directly after the BeginCombo/EndCombo block. The preview is designed to only host non-interactive elements
+// (Experimental, see GitHub issues: #1658, #4168)
+bool ImGui::BeginComboPreview()
+{
+    ImGuiContext& g = *GImGui;
+    ImGuiWindow* window = g.CurrentWindow;
+    ImGuiComboPreviewData* preview_data = &g.ComboPreviewData;
+
+    if (window->SkipItems || !window->ClipRect.Overlaps(g.LastItemData.Rect)) // FIXME: Because we don't have a ImGuiItemStatusFlags_Visible flag to test last ItemAdd() result
+        return false;
+    IM_ASSERT(g.LastItemData.Rect.Min.x == preview_data->PreviewRect.Min.x && g.LastItemData.Rect.Min.y == preview_data->PreviewRect.Min.y); // Didn't call after BeginCombo/EndCombo block or forgot to pass ImGuiComboFlags_CustomPreview flag?
+    if (!window->ClipRect.Contains(preview_data->PreviewRect)) // Narrower test (optional)
+        return false;
+
+    // FIXME: This could be contained in a PushWorkRect() api
+    preview_data->BackupCursorPos = window->DC.CursorPos;
+    preview_data->BackupCursorMaxPos = window->DC.CursorMaxPos;
+    preview_data->BackupCursorPosPrevLine = window->DC.CursorPosPrevLine;
+    preview_data->BackupPrevLineTextBaseOffset = window->DC.PrevLineTextBaseOffset;
+    preview_data->BackupLayout = window->DC.LayoutType;
+    window->DC.CursorPos = preview_data->PreviewRect.Min + g.Style.FramePadding;
+    window->DC.CursorMaxPos = window->DC.CursorPos;
+    window->DC.LayoutType = ImGuiLayoutType_Horizontal;
+    window->DC.IsSameLine = false;
+    PushClipRect(preview_data->PreviewRect.Min, preview_data->PreviewRect.Max, true);
+
+    return true;
+}
+
+void ImGui::EndComboPreview()
+{
+    ImGuiContext& g = *GImGui;
+    ImGuiWindow* window = g.CurrentWindow;
+    ImGuiComboPreviewData* preview_data = &g.ComboPreviewData;
+
+    // FIXME: Using CursorMaxPos approximation instead of correct AABB which we will store in ImDrawCmd in the future
+    ImDrawList* draw_list = window->DrawList;
+    if (window->DC.CursorMaxPos.x < preview_data->PreviewRect.Max.x && window->DC.CursorMaxPos.y < preview_data->PreviewRect.Max.y)
+        if (draw_list->CmdBuffer.Size > 1) // Unlikely case that the PushClipRect() didn't create a command
+        {
+            draw_list->_CmdHeader.ClipRect = draw_list->CmdBuffer[draw_list->CmdBuffer.Size - 1].ClipRect = draw_list->CmdBuffer[draw_list->CmdBuffer.Size - 2].ClipRect;
+            draw_list->_TryMergeDrawCmds();
+        }
+    PopClipRect();
+    window->DC.CursorPos = preview_data->BackupCursorPos;
+    window->DC.CursorMaxPos = ImMax(window->DC.CursorMaxPos, preview_data->BackupCursorMaxPos);
+    window->DC.CursorPosPrevLine = preview_data->BackupCursorPosPrevLine;
+    window->DC.PrevLineTextBaseOffset = preview_data->BackupPrevLineTextBaseOffset;
+    window->DC.LayoutType = preview_data->BackupLayout;
+    window->DC.IsSameLine = false;
+    preview_data->PreviewRect = ImRect();
+}
+
+// Getter for the old Combo() API: const char*[]
+static bool Items_ArrayGetter(void* data, int idx, const char** out_text)
+{
+    const char* const* items = (const char* const*)data;
+    if (out_text)
+        *out_text = items[idx];
+    return true;
+}
+
+// Getter for the old Combo() API: "item1\0item2\0item3\0"
+static bool Items_SingleStringGetter(void* data, int idx, const char** out_text)
+{
+    // FIXME-OPT: we could pre-compute the indices to fasten this. But only 1 active combo means the waste is limited.
+    const char* items_separated_by_zeros = (const char*)data;
+    int items_count = 0;
+    const char* p = items_separated_by_zeros;
+    while (*p)
+    {
+        if (idx == items_count)
+            break;
+        p += strlen(p) + 1;
+        items_count++;
+    }
+    if (!*p)
+        return false;
+    if (out_text)
+        *out_text = p;
+    return true;
+}
+
+// Old API, prefer using BeginCombo() nowadays if you can.
+bool ImGui::Combo(const char* label, int* current_item, bool (*items_getter)(void*, int, const char**), void* data, int items_count, int popup_max_height_in_items)
+{
+    ImGuiContext& g = *GImGui;
+
+    // Call the getter to obtain the preview string which is a parameter to BeginCombo()
+    const char* preview_value = NULL;
+    if (*current_item >= 0 && *current_item < items_count)
+        items_getter(data, *current_item, &preview_value);
+
+    // The old Combo() API exposed "popup_max_height_in_items". The new more general BeginCombo() API doesn't have/need it, but we emulate it here.
+    if (popup_max_height_in_items != -1 && !(g.NextWindowData.Flags & ImGuiNextWindowDataFlags_HasSizeConstraint))
+        SetNextWindowSizeConstraints(ImVec2(0, 0), ImVec2(FLT_MAX, CalcMaxPopupHeightFromItemCount(popup_max_height_in_items)));
+
+    if (!BeginCombo(label, preview_value, ImGuiComboFlags_None))
+        return false;
+
+    // Display items
+    // FIXME-OPT: Use clipper (but we need to disable it on the appearing frame to make sure our call to SetItemDefaultFocus() is processed)
+    bool value_changed = false;
+    for (int i = 0; i < items_count; i++)
+    {
+        PushID(i);
+        const bool item_selected = (i == *current_item);
+        const char* item_text;
+        if (!items_getter(data, i, &item_text))
+            item_text = "*Unknown item*";
+        if (Selectable(item_text, item_selected))
+        {
+            value_changed = true;
+            *current_item = i;
+        }
+        if (item_selected)
+            SetItemDefaultFocus();
+        PopID();
+    }
+
+    EndCombo();
+
+    if (value_changed)
+        MarkItemEdited(g.LastItemData.ID);
+
+    return value_changed;
+}
+
+// Combo box helper allowing to pass an array of strings.
+bool ImGui::Combo(const char* label, int* current_item, const char* const items[], int items_count, int height_in_items)
+{
+    const bool value_changed = Combo(label, current_item, Items_ArrayGetter, (void*)items, items_count, height_in_items);
+    return value_changed;
+}
+
+// Combo box helper allowing to pass all items in a single string literal holding multiple zero-terminated items "item1\0item2\0"
+bool ImGui::Combo(const char* label, int* current_item, const char* items_separated_by_zeros, int height_in_items)
+{
+    int items_count = 0;
+    const char* p = items_separated_by_zeros;       // FIXME-OPT: Avoid computing this, or at least only when combo is open
+    while (*p)
+    {
+        p += strlen(p) + 1;
+        items_count++;
+    }
+    bool value_changed = Combo(label, current_item, Items_SingleStringGetter, (void*)items_separated_by_zeros, items_count, height_in_items);
+    return value_changed;
+}
+
+//-------------------------------------------------------------------------
+// [SECTION] Data Type and Data Formatting Helpers [Internal]
+//-------------------------------------------------------------------------
+// - PatchFormatStringFloatToInt()
+// - DataTypeGetInfo()
+// - DataTypeFormatString()
+// - DataTypeApplyOp()
+// - DataTypeApplyOpFromText()
+// - DataTypeClamp()
+// - GetMinimumStepAtDecimalPrecision
+// - RoundScalarWithFormat<>()
+//-------------------------------------------------------------------------
+
+static const ImGuiDataTypeInfo GDataTypeInfo[] =
+{
+    { sizeof(char),             "S8",   "%d",   "%d"    },  // ImGuiDataType_S8
+    { sizeof(unsigned char),    "U8",   "%u",   "%u"    },
+    { sizeof(short),            "S16",  "%d",   "%d"    },  // ImGuiDataType_S16
+    { sizeof(unsigned short),   "U16",  "%u",   "%u"    },
+    { sizeof(int),              "S32",  "%d",   "%d"    },  // ImGuiDataType_S32
+    { sizeof(unsigned int),     "U32",  "%u",   "%u"    },
+#ifdef _MSC_VER
+    { sizeof(ImS64),            "S64",  "%I64d","%I64d" },  // ImGuiDataType_S64
+    { sizeof(ImU64),            "U64",  "%I64u","%I64u" },
+#else
+    { sizeof(ImS64),            "S64",  "%lld", "%lld"  },  // ImGuiDataType_S64
+    { sizeof(ImU64),            "U64",  "%llu", "%llu"  },
+#endif
+    { sizeof(float),            "float", "%.3f","%f"    },  // ImGuiDataType_Float (float are promoted to double in va_arg)
+    { sizeof(double),           "double","%f",  "%lf"   },  // ImGuiDataType_Double
+};
+IM_STATIC_ASSERT(IM_ARRAYSIZE(GDataTypeInfo) == ImGuiDataType_COUNT);
+
+// FIXME-LEGACY: Prior to 1.61 our DragInt() function internally used floats and because of this the compile-time default value for format was "%.0f".
+// Even though we changed the compile-time default, we expect users to have carried %f around, which would break the display of DragInt() calls.
+// To honor backward compatibility we are rewriting the format string, unless IMGUI_DISABLE_OBSOLETE_FUNCTIONS is enabled. What could possibly go wrong?!
+static const char* PatchFormatStringFloatToInt(const char* fmt)
+{
+    if (fmt[0] == '%' && fmt[1] == '.' && fmt[2] == '0' && fmt[3] == 'f' && fmt[4] == 0) // Fast legacy path for "%.0f" which is expected to be the most common case.
+        return "%d";
+    const char* fmt_start = ImParseFormatFindStart(fmt);    // Find % (if any, and ignore %%)
+    const char* fmt_end = ImParseFormatFindEnd(fmt_start);  // Find end of format specifier, which itself is an exercise of confidence/recklessness (because snprintf is dependent on libc or user).
+    if (fmt_end > fmt_start && fmt_end[-1] == 'f')
+    {
+#ifndef IMGUI_DISABLE_OBSOLETE_FUNCTIONS
+        if (fmt_start == fmt && fmt_end[0] == 0)
+            return "%d";
+        const char* tmp_format;
+        ImFormatStringToTempBuffer(&tmp_format, NULL, "%.*s%%d%s", (int)(fmt_start - fmt), fmt, fmt_end); // Honor leading and trailing decorations, but lose alignment/precision.
+        return tmp_format;
+#else
+        IM_ASSERT(0 && "DragInt(): Invalid format string!"); // Old versions used a default parameter of "%.0f", please replace with e.g. "%d"
+#endif
+    }
+    return fmt;
+}
+
+const ImGuiDataTypeInfo* ImGui::DataTypeGetInfo(ImGuiDataType data_type)
+{
+    IM_ASSERT(data_type >= 0 && data_type < ImGuiDataType_COUNT);
+    return &GDataTypeInfo[data_type];
+}
+
+int ImGui::DataTypeFormatString(char* buf, int buf_size, ImGuiDataType data_type, const void* p_data, const char* format)
+{
+    // Signedness doesn't matter when pushing integer arguments
+    if (data_type == ImGuiDataType_S32 || data_type == ImGuiDataType_U32)
+        return ImFormatString(buf, buf_size, format, *(const ImU32*)p_data);
+    if (data_type == ImGuiDataType_S64 || data_type == ImGuiDataType_U64)
+        return ImFormatString(buf, buf_size, format, *(const ImU64*)p_data);
+    if (data_type == ImGuiDataType_Float)
+        return ImFormatString(buf, buf_size, format, *(const float*)p_data);
+    if (data_type == ImGuiDataType_Double)
+        return ImFormatString(buf, buf_size, format, *(const double*)p_data);
+    if (data_type == ImGuiDataType_S8)
+        return ImFormatString(buf, buf_size, format, *(const ImS8*)p_data);
+    if (data_type == ImGuiDataType_U8)
+        return ImFormatString(buf, buf_size, format, *(const ImU8*)p_data);
+    if (data_type == ImGuiDataType_S16)
+        return ImFormatString(buf, buf_size, format, *(const ImS16*)p_data);
+    if (data_type == ImGuiDataType_U16)
+        return ImFormatString(buf, buf_size, format, *(const ImU16*)p_data);
+    IM_ASSERT(0);
+    return 0;
+}
+
+void ImGui::DataTypeApplyOp(ImGuiDataType data_type, int op, void* output, const void* arg1, const void* arg2)
+{
+    IM_ASSERT(op == '+' || op == '-');
+    switch (data_type)
+    {
+        case ImGuiDataType_S8:
+            if (op == '+') { *(ImS8*)output  = ImAddClampOverflow(*(const ImS8*)arg1,  *(const ImS8*)arg2,  IM_S8_MIN,  IM_S8_MAX); }
+            if (op == '-') { *(ImS8*)output  = ImSubClampOverflow(*(const ImS8*)arg1,  *(const ImS8*)arg2,  IM_S8_MIN,  IM_S8_MAX); }
+            return;
+        case ImGuiDataType_U8:
+            if (op == '+') { *(ImU8*)output  = ImAddClampOverflow(*(const ImU8*)arg1,  *(const ImU8*)arg2,  IM_U8_MIN,  IM_U8_MAX); }
+            if (op == '-') { *(ImU8*)output  = ImSubClampOverflow(*(const ImU8*)arg1,  *(const ImU8*)arg2,  IM_U8_MIN,  IM_U8_MAX); }
+            return;
+        case ImGuiDataType_S16:
+            if (op == '+') { *(ImS16*)output = ImAddClampOverflow(*(const ImS16*)arg1, *(const ImS16*)arg2, IM_S16_MIN, IM_S16_MAX); }
+            if (op == '-') { *(ImS16*)output = ImSubClampOverflow(*(const ImS16*)arg1, *(const ImS16*)arg2, IM_S16_MIN, IM_S16_MAX); }
+            return;
+        case ImGuiDataType_U16:
+            if (op == '+') { *(ImU16*)output = ImAddClampOverflow(*(const ImU16*)arg1, *(const ImU16*)arg2, IM_U16_MIN, IM_U16_MAX); }
+            if (op == '-') { *(ImU16*)output = ImSubClampOverflow(*(const ImU16*)arg1, *(const ImU16*)arg2, IM_U16_MIN, IM_U16_MAX); }
+            return;
+        case ImGuiDataType_S32:
+            if (op == '+') { *(ImS32*)output = ImAddClampOverflow(*(const ImS32*)arg1, *(const ImS32*)arg2, IM_S32_MIN, IM_S32_MAX); }
+            if (op == '-') { *(ImS32*)output = ImSubClampOverflow(*(const ImS32*)arg1, *(const ImS32*)arg2, IM_S32_MIN, IM_S32_MAX); }
+            return;
+        case ImGuiDataType_U32:
+            if (op == '+') { *(ImU32*)output = ImAddClampOverflow(*(const ImU32*)arg1, *(const ImU32*)arg2, IM_U32_MIN, IM_U32_MAX); }
+            if (op == '-') { *(ImU32*)output = ImSubClampOverflow(*(const ImU32*)arg1, *(const ImU32*)arg2, IM_U32_MIN, IM_U32_MAX); }
+            return;
+        case ImGuiDataType_S64:
+            if (op == '+') { *(ImS64*)output = ImAddClampOverflow(*(const ImS64*)arg1, *(const ImS64*)arg2, IM_S64_MIN, IM_S64_MAX); }
+            if (op == '-') { *(ImS64*)output = ImSubClampOverflow(*(const ImS64*)arg1, *(const ImS64*)arg2, IM_S64_MIN, IM_S64_MAX); }
+            return;
+        case ImGuiDataType_U64:
+            if (op == '+') { *(ImU64*)output = ImAddClampOverflow(*(const ImU64*)arg1, *(const ImU64*)arg2, IM_U64_MIN, IM_U64_MAX); }
+            if (op == '-') { *(ImU64*)output = ImSubClampOverflow(*(const ImU64*)arg1, *(const ImU64*)arg2, IM_U64_MIN, IM_U64_MAX); }
+            return;
+        case ImGuiDataType_Float:
+            if (op == '+') { *(float*)output = *(const float*)arg1 + *(const float*)arg2; }
+            if (op == '-') { *(float*)output = *(const float*)arg1 - *(const float*)arg2; }
+            return;
+        case ImGuiDataType_Double:
+            if (op == '+') { *(double*)output = *(const double*)arg1 + *(const double*)arg2; }
+            if (op == '-') { *(double*)output = *(const double*)arg1 - *(const double*)arg2; }
+            return;
+        case ImGuiDataType_COUNT: break;
+    }
+    IM_ASSERT(0);
+}
+
+// User can input math operators (e.g. +100) to edit a numerical values.
+// NB: This is _not_ a full expression evaluator. We should probably add one and replace this dumb mess..
+bool ImGui::DataTypeApplyFromText(const char* buf, ImGuiDataType data_type, void* p_data, const char* format)
+{
+    while (ImCharIsBlankA(*buf))
+        buf++;
+    if (!buf[0])
+        return false;
+
+    // Copy the value in an opaque buffer so we can compare at the end of the function if it changed at all.
+    const ImGuiDataTypeInfo* type_info = DataTypeGetInfo(data_type);
+    ImGuiDataTypeTempStorage data_backup;
+    memcpy(&data_backup, p_data, type_info->Size);
+
+    // Sanitize format
+    // For float/double we have to ignore format with precision (e.g. "%.2f") because sscanf doesn't take them in, so force them into %f and %lf
+    char format_sanitized[32];
+    if (data_type == ImGuiDataType_Float || data_type == ImGuiDataType_Double)
+        format = type_info->ScanFmt;
+    else
+        format = ImParseFormatSanitizeForScanning(format, format_sanitized, IM_ARRAYSIZE(format_sanitized));
+
+    // Small types need a 32-bit buffer to receive the result from scanf()
+    int v32 = 0;
+    if (sscanf(buf, format, type_info->Size >= 4 ? p_data : &v32) < 1)
+        return false;
+    if (type_info->Size < 4)
+    {
+        if (data_type == ImGuiDataType_S8)
+            *(ImS8*)p_data = (ImS8)ImClamp(v32, (int)IM_S8_MIN, (int)IM_S8_MAX);
+        else if (data_type == ImGuiDataType_U8)
+            *(ImU8*)p_data = (ImU8)ImClamp(v32, (int)IM_U8_MIN, (int)IM_U8_MAX);
+        else if (data_type == ImGuiDataType_S16)
+            *(ImS16*)p_data = (ImS16)ImClamp(v32, (int)IM_S16_MIN, (int)IM_S16_MAX);
+        else if (data_type == ImGuiDataType_U16)
+            *(ImU16*)p_data = (ImU16)ImClamp(v32, (int)IM_U16_MIN, (int)IM_U16_MAX);
+        else
+            IM_ASSERT(0);
+    }
+
+    return memcmp(&data_backup, p_data, type_info->Size) != 0;
+}
+
+template<typename T>
+static int DataTypeCompareT(const T* lhs, const T* rhs)
+{
+    if (*lhs < *rhs) return -1;
+    if (*lhs > *rhs) return +1;
+    return 0;
+}
+
+int ImGui::DataTypeCompare(ImGuiDataType data_type, const void* arg_1, const void* arg_2)
+{
+    switch (data_type)
+    {
+    case ImGuiDataType_S8:     return DataTypeCompareT<ImS8  >((const ImS8*  )arg_1, (const ImS8*  )arg_2);
+    case ImGuiDataType_U8:     return DataTypeCompareT<ImU8  >((const ImU8*  )arg_1, (const ImU8*  )arg_2);
+    case ImGuiDataType_S16:    return DataTypeCompareT<ImS16 >((const ImS16* )arg_1, (const ImS16* )arg_2);
+    case ImGuiDataType_U16:    return DataTypeCompareT<ImU16 >((const ImU16* )arg_1, (const ImU16* )arg_2);
+    case ImGuiDataType_S32:    return DataTypeCompareT<ImS32 >((const ImS32* )arg_1, (const ImS32* )arg_2);
+    case ImGuiDataType_U32:    return DataTypeCompareT<ImU32 >((const ImU32* )arg_1, (const ImU32* )arg_2);
+    case ImGuiDataType_S64:    return DataTypeCompareT<ImS64 >((const ImS64* )arg_1, (const ImS64* )arg_2);
+    case ImGuiDataType_U64:    return DataTypeCompareT<ImU64 >((const ImU64* )arg_1, (const ImU64* )arg_2);
+    case ImGuiDataType_Float:  return DataTypeCompareT<float >((const float* )arg_1, (const float* )arg_2);
+    case ImGuiDataType_Double: return DataTypeCompareT<double>((const double*)arg_1, (const double*)arg_2);
+    case ImGuiDataType_COUNT:  break;
+    }
+    IM_ASSERT(0);
+    return 0;
+}
+
+template<typename T>
+static bool DataTypeClampT(T* v, const T* v_min, const T* v_max)
+{
+    // Clamp, both sides are optional, return true if modified
+    if (v_min && *v < *v_min) { *v = *v_min; return true; }
+    if (v_max && *v > *v_max) { *v = *v_max; return true; }
+    return false;
+}
+
+bool ImGui::DataTypeClamp(ImGuiDataType data_type, void* p_data, const void* p_min, const void* p_max)
+{
+    switch (data_type)
+    {
+    case ImGuiDataType_S8:     return DataTypeClampT<ImS8  >((ImS8*  )p_data, (const ImS8*  )p_min, (const ImS8*  )p_max);
+    case ImGuiDataType_U8:     return DataTypeClampT<ImU8  >((ImU8*  )p_data, (const ImU8*  )p_min, (const ImU8*  )p_max);
+    case ImGuiDataType_S16:    return DataTypeClampT<ImS16 >((ImS16* )p_data, (const ImS16* )p_min, (const ImS16* )p_max);
+    case ImGuiDataType_U16:    return DataTypeClampT<ImU16 >((ImU16* )p_data, (const ImU16* )p_min, (const ImU16* )p_max);
+    case ImGuiDataType_S32:    return DataTypeClampT<ImS32 >((ImS32* )p_data, (const ImS32* )p_min, (const ImS32* )p_max);
+    case ImGuiDataType_U32:    return DataTypeClampT<ImU32 >((ImU32* )p_data, (const ImU32* )p_min, (const ImU32* )p_max);
+    case ImGuiDataType_S64:    return DataTypeClampT<ImS64 >((ImS64* )p_data, (const ImS64* )p_min, (const ImS64* )p_max);
+    case ImGuiDataType_U64:    return DataTypeClampT<ImU64 >((ImU64* )p_data, (const ImU64* )p_min, (const ImU64* )p_max);
+    case ImGuiDataType_Float:  return DataTypeClampT<float >((float* )p_data, (const float* )p_min, (const float* )p_max);
+    case ImGuiDataType_Double: return DataTypeClampT<double>((double*)p_data, (const double*)p_min, (const double*)p_max);
+    case ImGuiDataType_COUNT:  break;
+    }
+    IM_ASSERT(0);
+    return false;
+}
+
+static float GetMinimumStepAtDecimalPrecision(int decimal_precision)
+{
+    static const float min_steps[10] = { 1.0f, 0.1f, 0.01f, 0.001f, 0.0001f, 0.00001f, 0.000001f, 0.0000001f, 0.00000001f, 0.000000001f };
+    if (decimal_precision < 0)
+        return FLT_MIN;
+    return (decimal_precision < IM_ARRAYSIZE(min_steps)) ? min_steps[decimal_precision] : ImPow(10.0f, (float)-decimal_precision);
+}
+
+template<typename TYPE>
+TYPE ImGui::RoundScalarWithFormatT(const char* format, ImGuiDataType data_type, TYPE v)
+{
+    IM_UNUSED(data_type);
+    IM_ASSERT(data_type == ImGuiDataType_Float || data_type == ImGuiDataType_Double);
+    const char* fmt_start = ImParseFormatFindStart(format);
+    if (fmt_start[0] != '%' || fmt_start[1] == '%') // Don't apply if the value is not visible in the format string
+        return v;
+
+    // Sanitize format
+    char fmt_sanitized[32];
+    ImParseFormatSanitizeForPrinting(fmt_start, fmt_sanitized, IM_ARRAYSIZE(fmt_sanitized));
+    fmt_start = fmt_sanitized;
+
+    // Format value with our rounding, and read back
+    char v_str[64];
+    ImFormatString(v_str, IM_ARRAYSIZE(v_str), fmt_start, v);
+    const char* p = v_str;
+    while (*p == ' ')
+        p++;
+    v = (TYPE)ImAtof(p);
+
+    return v;
+}
+
+//-------------------------------------------------------------------------
+// [SECTION] Widgets: DragScalar, DragFloat, DragInt, etc.
+//-------------------------------------------------------------------------
+// - DragBehaviorT<>() [Internal]
+// - DragBehavior() [Internal]
+// - DragScalar()
+// - DragScalarN()
+// - DragFloat()
+// - DragFloat2()
+// - DragFloat3()
+// - DragFloat4()
+// - DragFloatRange2()
+// - DragInt()
+// - DragInt2()
+// - DragInt3()
+// - DragInt4()
+// - DragIntRange2()
+//-------------------------------------------------------------------------
+
+// This is called by DragBehavior() when the widget is active (held by mouse or being manipulated with Nav controls)
+template<typename TYPE, typename SIGNEDTYPE, typename FLOATTYPE>
+bool ImGui::DragBehaviorT(ImGuiDataType data_type, TYPE* v, float v_speed, const TYPE v_min, const TYPE v_max, const char* format, ImGuiSliderFlags flags)
+{
+    ImGuiContext& g = *GImGui;
+    const ImGuiAxis axis = (flags & ImGuiSliderFlags_Vertical) ? ImGuiAxis_Y : ImGuiAxis_X;
+    const bool is_clamped = (v_min < v_max);
+    const bool is_logarithmic = (flags & ImGuiSliderFlags_Logarithmic) != 0;
+    const bool is_floating_point = (data_type == ImGuiDataType_Float) || (data_type == ImGuiDataType_Double);
+
+    // Default tweak speed
+    if (v_speed == 0.0f && is_clamped && (v_max - v_min < FLT_MAX))
+        v_speed = (float)((v_max - v_min) * g.DragSpeedDefaultRatio);
+
+    // Inputs accumulates into g.DragCurrentAccum, which is flushed into the current value as soon as it makes a difference with our precision settings
+    float adjust_delta = 0.0f;
+    if (g.ActiveIdSource == ImGuiInputSource_Mouse && IsMousePosValid() && IsMouseDragPastThreshold(0, g.IO.MouseDragThreshold * DRAG_MOUSE_THRESHOLD_FACTOR))
+    {
+        adjust_delta = g.IO.MouseDelta[axis];
+        if (g.IO.KeyAlt)
+            adjust_delta *= 1.0f / 100.0f;
+        if (g.IO.KeyShift)
+            adjust_delta *= 10.0f;
+    }
+    else if (g.ActiveIdSource == ImGuiInputSource_Nav)
+    {
+        const int decimal_precision = is_floating_point ? ImParseFormatPrecision(format, 3) : 0;
+        adjust_delta = GetNavInputAmount2d(ImGuiNavDirSourceFlags_Keyboard | ImGuiNavDirSourceFlags_PadDPad, ImGuiNavReadMode_RepeatFast, 1.0f / 10.0f, 10.0f)[axis];
+        v_speed = ImMax(v_speed, GetMinimumStepAtDecimalPrecision(decimal_precision));
+    }
+    adjust_delta *= v_speed;
+
+    // For vertical drag we currently assume that Up=higher value (like we do with vertical sliders). This may become a parameter.
+    if (axis == ImGuiAxis_Y)
+        adjust_delta = -adjust_delta;
+
+    // For logarithmic use our range is effectively 0..1 so scale the delta into that range
+    if (is_logarithmic && (v_max - v_min < FLT_MAX) && ((v_max - v_min) > 0.000001f)) // Epsilon to avoid /0
+        adjust_delta /= (float)(v_max - v_min);
+
+    // Clear current value on activation
+    // Avoid altering values and clamping when we are _already_ past the limits and heading in the same direction, so e.g. if range is 0..255, current value is 300 and we are pushing to the right side, keep the 300.
+    bool is_just_activated = g.ActiveIdIsJustActivated;
+    bool is_already_past_limits_and_pushing_outward = is_clamped && ((*v >= v_max && adjust_delta > 0.0f) || (*v <= v_min && adjust_delta < 0.0f));
+    if (is_just_activated || is_already_past_limits_and_pushing_outward)
+    {
+        g.DragCurrentAccum = 0.0f;
+        g.DragCurrentAccumDirty = false;
+    }
+    else if (adjust_delta != 0.0f)
+    {
+        g.DragCurrentAccum += adjust_delta;
+        g.DragCurrentAccumDirty = true;
+    }
+
+    if (!g.DragCurrentAccumDirty)
+        return false;
+
+    TYPE v_cur = *v;
+    FLOATTYPE v_old_ref_for_accum_remainder = (FLOATTYPE)0.0f;
+
+    float logarithmic_zero_epsilon = 0.0f; // Only valid when is_logarithmic is true
+    const float zero_deadzone_halfsize = 0.0f; // Drag widgets have no deadzone (as it doesn't make sense)
+    if (is_logarithmic)
+    {
+        // When using logarithmic sliders, we need to clamp to avoid hitting zero, but our choice of clamp value greatly affects slider precision. We attempt to use the specified precision to estimate a good lower bound.
+        const int decimal_precision = is_floating_point ? ImParseFormatPrecision(format, 3) : 1;
+        logarithmic_zero_epsilon = ImPow(0.1f, (float)decimal_precision);
+
+        // Convert to parametric space, apply delta, convert back
+        float v_old_parametric = ScaleRatioFromValueT<TYPE, SIGNEDTYPE, FLOATTYPE>(data_type, v_cur, v_min, v_max, is_logarithmic, logarithmic_zero_epsilon, zero_deadzone_halfsize);
+        float v_new_parametric = v_old_parametric + g.DragCurrentAccum;
+        v_cur = ScaleValueFromRatioT<TYPE, SIGNEDTYPE, FLOATTYPE>(data_type, v_new_parametric, v_min, v_max, is_logarithmic, logarithmic_zero_epsilon, zero_deadzone_halfsize);
+        v_old_ref_for_accum_remainder = v_old_parametric;
+    }
+    else
+    {
+        v_cur += (SIGNEDTYPE)g.DragCurrentAccum;
+    }
+
+    // Round to user desired precision based on format string
+    if (is_floating_point && !(flags & ImGuiSliderFlags_NoRoundToFormat))
+        v_cur = RoundScalarWithFormatT<TYPE>(format, data_type, v_cur);
+
+    // Preserve remainder after rounding has been applied. This also allow slow tweaking of values.
+    g.DragCurrentAccumDirty = false;
+    if (is_logarithmic)
+    {
+        // Convert to parametric space, apply delta, convert back
+        float v_new_parametric = ScaleRatioFromValueT<TYPE, SIGNEDTYPE, FLOATTYPE>(data_type, v_cur, v_min, v_max, is_logarithmic, logarithmic_zero_epsilon, zero_deadzone_halfsize);
+        g.DragCurrentAccum -= (float)(v_new_parametric - v_old_ref_for_accum_remainder);
+    }
+    else
+    {
+        g.DragCurrentAccum -= (float)((SIGNEDTYPE)v_cur - (SIGNEDTYPE)*v);
+    }
+
+    // Lose zero sign for float/double
+    if (v_cur == (TYPE)-0)
+        v_cur = (TYPE)0;
+
+    // Clamp values (+ handle overflow/wrap-around for integer types)
+    if (*v != v_cur && is_clamped)
+    {
+        if (v_cur < v_min || (v_cur > *v && adjust_delta < 0.0f && !is_floating_point))
+            v_cur = v_min;
+        if (v_cur > v_max || (v_cur < *v && adjust_delta > 0.0f && !is_floating_point))
+            v_cur = v_max;
+    }
+
+    // Apply result
+    if (*v == v_cur)
+        return false;
+    *v = v_cur;
+    return true;
+}
+
+bool ImGui::DragBehavior(ImGuiID id, ImGuiDataType data_type, void* p_v, float v_speed, const void* p_min, const void* p_max, const char* format, ImGuiSliderFlags flags)
+{
+    // Read imgui.cpp "API BREAKING CHANGES" section for 1.78 if you hit this assert.
+    IM_ASSERT((flags == 1 || (flags & ImGuiSliderFlags_InvalidMask_) == 0) && "Invalid ImGuiSliderFlags flags! Has the 'float power' argument been mistakenly cast to flags? Call function with ImGuiSliderFlags_Logarithmic flags instead.");
+
+    ImGuiContext& g = *GImGui;
+    if (g.ActiveId == id)
+    {
+        if (g.ActiveIdSource == ImGuiInputSource_Mouse && !g.IO.MouseDown[0])
+            ClearActiveID();
+        else if (g.ActiveIdSource == ImGuiInputSource_Nav && g.NavActivatePressedId == id && !g.ActiveIdIsJustActivated)
+            ClearActiveID();
+    }
+    if (g.ActiveId != id)
+        return false;
+    if ((g.LastItemData.InFlags & ImGuiItemFlags_ReadOnly) || (flags & ImGuiSliderFlags_ReadOnly))
+        return false;
+
+    switch (data_type)
+    {
+    case ImGuiDataType_S8:     { ImS32 v32 = (ImS32)*(ImS8*)p_v;  bool r = DragBehaviorT<ImS32, ImS32, float>(ImGuiDataType_S32, &v32, v_speed, p_min ? *(const ImS8*) p_min : IM_S8_MIN,  p_max ? *(const ImS8*)p_max  : IM_S8_MAX,  format, flags); if (r) *(ImS8*)p_v = (ImS8)v32; return r; }
+    case ImGuiDataType_U8:     { ImU32 v32 = (ImU32)*(ImU8*)p_v;  bool r = DragBehaviorT<ImU32, ImS32, float>(ImGuiDataType_U32, &v32, v_speed, p_min ? *(const ImU8*) p_min : IM_U8_MIN,  p_max ? *(const ImU8*)p_max  : IM_U8_MAX,  format, flags); if (r) *(ImU8*)p_v = (ImU8)v32; return r; }
+    case ImGuiDataType_S16:    { ImS32 v32 = (ImS32)*(ImS16*)p_v; bool r = DragBehaviorT<ImS32, ImS32, float>(ImGuiDataType_S32, &v32, v_speed, p_min ? *(const ImS16*)p_min : IM_S16_MIN, p_max ? *(const ImS16*)p_max : IM_S16_MAX, format, flags); if (r) *(ImS16*)p_v = (ImS16)v32; return r; }
+    case ImGuiDataType_U16:    { ImU32 v32 = (ImU32)*(ImU16*)p_v; bool r = DragBehaviorT<ImU32, ImS32, float>(ImGuiDataType_U32, &v32, v_speed, p_min ? *(const ImU16*)p_min : IM_U16_MIN, p_max ? *(const ImU16*)p_max : IM_U16_MAX, format, flags); if (r) *(ImU16*)p_v = (ImU16)v32; return r; }
+    case ImGuiDataType_S32:    return DragBehaviorT<ImS32, ImS32, float >(data_type, (ImS32*)p_v,  v_speed, p_min ? *(const ImS32* )p_min : IM_S32_MIN, p_max ? *(const ImS32* )p_max : IM_S32_MAX, format, flags);
+    case ImGuiDataType_U32:    return DragBehaviorT<ImU32, ImS32, float >(data_type, (ImU32*)p_v,  v_speed, p_min ? *(const ImU32* )p_min : IM_U32_MIN, p_max ? *(const ImU32* )p_max : IM_U32_MAX, format, flags);
+    case ImGuiDataType_S64:    return DragBehaviorT<ImS64, ImS64, double>(data_type, (ImS64*)p_v,  v_speed, p_min ? *(const ImS64* )p_min : IM_S64_MIN, p_max ? *(const ImS64* )p_max : IM_S64_MAX, format, flags);
+    case ImGuiDataType_U64:    return DragBehaviorT<ImU64, ImS64, double>(data_type, (ImU64*)p_v,  v_speed, p_min ? *(const ImU64* )p_min : IM_U64_MIN, p_max ? *(const ImU64* )p_max : IM_U64_MAX, format, flags);
+    case ImGuiDataType_Float:  return DragBehaviorT<float, float, float >(data_type, (float*)p_v,  v_speed, p_min ? *(const float* )p_min : -FLT_MAX,   p_max ? *(const float* )p_max : FLT_MAX,    format, flags);
+    case ImGuiDataType_Double: return DragBehaviorT<double,double,double>(data_type, (double*)p_v, v_speed, p_min ? *(const double*)p_min : -DBL_MAX,   p_max ? *(const double*)p_max : DBL_MAX,    format, flags);
+    case ImGuiDataType_COUNT:  break;
+    }
+    IM_ASSERT(0);
+    return false;
+}
+
+// Note: p_data, p_min and p_max are _pointers_ to a memory address holding the data. For a Drag widget, p_min and p_max are optional.
+// Read code of e.g. DragFloat(), DragInt() etc. or examples in 'Demo->Widgets->Data Types' to understand how to use this function directly.
+bool ImGui::DragScalar(const char* label, ImGuiDataType data_type, void* p_data, float v_speed, const void* p_min, const void* p_max, const char* format, ImGuiSliderFlags flags)
+{
+    ImGuiWindow* window = GetCurrentWindow();
+    if (window->SkipItems)
+        return false;
+
+    ImGuiContext& g = *GImGui;
+    const ImGuiStyle& style = g.Style;
+    const ImGuiID id = window->GetID(label);
+    const float w = CalcItemWidth();
+
+    const ImVec2 label_size = CalcTextSize(label, NULL, true);
+    const ImRect frame_bb(window->DC.CursorPos, window->DC.CursorPos + ImVec2(w, label_size.y + style.FramePadding.y * 2.0f));
+    const ImRect total_bb(frame_bb.Min, frame_bb.Max + ImVec2(label_size.x > 0.0f ? style.ItemInnerSpacing.x + label_size.x : 0.0f, 0.0f));
+
+    const bool temp_input_allowed = (flags & ImGuiSliderFlags_NoInput) == 0;
+    ItemSize(total_bb, style.FramePadding.y);
+    if (!ItemAdd(total_bb, id, &frame_bb, temp_input_allowed ? ImGuiItemFlags_Inputable : 0))
+        return false;
+
+    // Default format string when passing NULL
+    if (format == NULL)
+        format = DataTypeGetInfo(data_type)->PrintFmt;
+    else if (data_type == ImGuiDataType_S32 && strcmp(format, "%d") != 0) // (FIXME-LEGACY: Patch old "%.0f" format string to use "%d", read function more details.)
+        format = PatchFormatStringFloatToInt(format);
+
+    const bool hovered = ItemHoverable(frame_bb, id);
+    bool temp_input_is_active = temp_input_allowed && TempInputIsActive(id);
+    if (!temp_input_is_active)
+    {
+        // Tabbing or CTRL-clicking on Drag turns it into an InputText
+        const bool input_requested_by_tabbing = temp_input_allowed && (g.LastItemData.StatusFlags & ImGuiItemStatusFlags_FocusedByTabbing) != 0;
+        const bool clicked = (hovered && g.IO.MouseClicked[0]);
+        const bool double_clicked = (hovered && g.IO.MouseClickedCount[0] == 2);
+        const bool make_active = (input_requested_by_tabbing || clicked || double_clicked || g.NavActivateId == id || g.NavActivateInputId == id);
+        if (make_active && temp_input_allowed)
+            if (input_requested_by_tabbing || (clicked && g.IO.KeyCtrl) || double_clicked || g.NavActivateInputId == id)
+                temp_input_is_active = true;
+
+        // (Optional) simple click (without moving) turns Drag into an InputText
+        if (g.IO.ConfigDragClickToInputText && temp_input_allowed && !temp_input_is_active)
+            if (g.ActiveId == id && hovered && g.IO.MouseReleased[0] && !IsMouseDragPastThreshold(0, g.IO.MouseDragThreshold * DRAG_MOUSE_THRESHOLD_FACTOR))
+            {
+                g.NavActivateId = g.NavActivateInputId = id;
+                g.NavActivateFlags = ImGuiActivateFlags_PreferInput;
+                temp_input_is_active = true;
+            }
+
+        if (make_active && !temp_input_is_active)
+        {
+            SetActiveID(id, window);
+            SetFocusID(id, window);
+            FocusWindow(window);
+            g.ActiveIdUsingNavDirMask = (1 << ImGuiDir_Left) | (1 << ImGuiDir_Right);
+        }
+    }
+
+    if (temp_input_is_active)
+    {
+        // Only clamp CTRL+Click input when ImGuiSliderFlags_AlwaysClamp is set
+        const bool is_clamp_input = (flags & ImGuiSliderFlags_AlwaysClamp) != 0 && (p_min == NULL || p_max == NULL || DataTypeCompare(data_type, p_min, p_max) < 0);
+        return TempInputScalar(frame_bb, id, label, data_type, p_data, format, is_clamp_input ? p_min : NULL, is_clamp_input ? p_max : NULL);
+    }
+
+    // Draw frame
+    const ImU32 frame_col = GetColorU32(g.ActiveId == id ? ImGuiCol_FrameBgActive : hovered ? ImGuiCol_FrameBgHovered : ImGuiCol_FrameBg);
+    RenderNavHighlight(frame_bb, id);
+    RenderFrame(frame_bb.Min, frame_bb.Max, frame_col, true, style.FrameRounding);
+
+    // Drag behavior
+    const bool value_changed = DragBehavior(id, data_type, p_data, v_speed, p_min, p_max, format, flags);
+    if (value_changed)
+        MarkItemEdited(id);
+
+    // Display value using user-provided display format so user can add prefix/suffix/decorations to the value.
+    char value_buf[64];
+    const char* value_buf_end = value_buf + DataTypeFormatString(value_buf, IM_ARRAYSIZE(value_buf), data_type, p_data, format);
+    if (g.LogEnabled)
+        LogSetNextTextDecoration("{", "}");
+    RenderTextClipped(frame_bb.Min, frame_bb.Max, value_buf, value_buf_end, NULL, ImVec2(0.5f, 0.5f));
+
+    if (label_size.x > 0.0f)
+        RenderText(ImVec2(frame_bb.Max.x + style.ItemInnerSpacing.x, frame_bb.Min.y + style.FramePadding.y), label);
+
+    IMGUI_TEST_ENGINE_ITEM_INFO(id, label, g.LastItemData.StatusFlags);
+    return value_changed;
+}
+
+bool ImGui::DragScalarN(const char* label, ImGuiDataType data_type, void* p_data, int components, float v_speed, const void* p_min, const void* p_max, const char* format, ImGuiSliderFlags flags)
+{
+    ImGuiWindow* window = GetCurrentWindow();
+    if (window->SkipItems)
+        return false;
+
+    ImGuiContext& g = *GImGui;
+    bool value_changed = false;
+    BeginGroup();
+    PushID(label);
+    PushMultiItemsWidths(components, CalcItemWidth());
+    size_t type_size = GDataTypeInfo[data_type].Size;
+    for (int i = 0; i < components; i++)
+    {
+        PushID(i);
+        if (i > 0)
+            SameLine(0, g.Style.ItemInnerSpacing.x);
+        value_changed |= DragScalar("", data_type, p_data, v_speed, p_min, p_max, format, flags);
+        PopID();
+        PopItemWidth();
+        p_data = (void*)((char*)p_data + type_size);
+    }
+    PopID();
+
+    const char* label_end = FindRenderedTextEnd(label);
+    if (label != label_end)
+    {
+        SameLine(0, g.Style.ItemInnerSpacing.x);
+        TextEx(label, label_end);
+    }
+
+    EndGroup();
+    return value_changed;
+}
+
+bool ImGui::DragFloat(const char* label, float* v, float v_speed, float v_min, float v_max, const char* format, ImGuiSliderFlags flags)
+{
+    return DragScalar(label, ImGuiDataType_Float, v, v_speed, &v_min, &v_max, format, flags);
+}
+
+bool ImGui::DragFloat2(const char* label, float v[2], float v_speed, float v_min, float v_max, const char* format, ImGuiSliderFlags flags)
+{
+    return DragScalarN(label, ImGuiDataType_Float, v, 2, v_speed, &v_min, &v_max, format, flags);
+}
+
+bool ImGui::DragFloat3(const char* label, float v[3], float v_speed, float v_min, float v_max, const char* format, ImGuiSliderFlags flags)
+{
+    return DragScalarN(label, ImGuiDataType_Float, v, 3, v_speed, &v_min, &v_max, format, flags);
+}
+
+bool ImGui::DragFloat4(const char* label, float v[4], float v_speed, float v_min, float v_max, const char* format, ImGuiSliderFlags flags)
+{
+    return DragScalarN(label, ImGuiDataType_Float, v, 4, v_speed, &v_min, &v_max, format, flags);
+}
+
+// NB: You likely want to specify the ImGuiSliderFlags_AlwaysClamp when using this.
+bool ImGui::DragFloatRange2(const char* label, float* v_current_min, float* v_current_max, float v_speed, float v_min, float v_max, const char* format, const char* format_max, ImGuiSliderFlags flags)
+{
+    ImGuiWindow* window = GetCurrentWindow();
+    if (window->SkipItems)
+        return false;
+
+    ImGuiContext& g = *GImGui;
+    PushID(label);
+    BeginGroup();
+    PushMultiItemsWidths(2, CalcItemWidth());
+
+    float min_min = (v_min >= v_max) ? -FLT_MAX : v_min;
+    float min_max = (v_min >= v_max) ? *v_current_max : ImMin(v_max, *v_current_max);
+    ImGuiSliderFlags min_flags = flags | ((min_min == min_max) ? ImGuiSliderFlags_ReadOnly : 0);
+    bool value_changed = DragScalar("##min", ImGuiDataType_Float, v_current_min, v_speed, &min_min, &min_max, format, min_flags);
+    PopItemWidth();
+    SameLine(0, g.Style.ItemInnerSpacing.x);
+
+    float max_min = (v_min >= v_max) ? *v_current_min : ImMax(v_min, *v_current_min);
+    float max_max = (v_min >= v_max) ? FLT_MAX : v_max;
+    ImGuiSliderFlags max_flags = flags | ((max_min == max_max) ? ImGuiSliderFlags_ReadOnly : 0);
+    value_changed |= DragScalar("##max", ImGuiDataType_Float, v_current_max, v_speed, &max_min, &max_max, format_max ? format_max : format, max_flags);
+    PopItemWidth();
+    SameLine(0, g.Style.ItemInnerSpacing.x);
+
+    TextEx(label, FindRenderedTextEnd(label));
+    EndGroup();
+    PopID();
+
+    return value_changed;
+}
+
+// NB: v_speed is float to allow adjusting the drag speed with more precision
+bool ImGui::DragInt(const char* label, int* v, float v_speed, int v_min, int v_max, const char* format, ImGuiSliderFlags flags)
+{
+    return DragScalar(label, ImGuiDataType_S32, v, v_speed, &v_min, &v_max, format, flags);
+}
+
+bool ImGui::DragInt2(const char* label, int v[2], float v_speed, int v_min, int v_max, const char* format, ImGuiSliderFlags flags)
+{
+    return DragScalarN(label, ImGuiDataType_S32, v, 2, v_speed, &v_min, &v_max, format, flags);
+}
+
+bool ImGui::DragInt3(const char* label, int v[3], float v_speed, int v_min, int v_max, const char* format, ImGuiSliderFlags flags)
+{
+    return DragScalarN(label, ImGuiDataType_S32, v, 3, v_speed, &v_min, &v_max, format, flags);
+}
+
+bool ImGui::DragInt4(const char* label, int v[4], float v_speed, int v_min, int v_max, const char* format, ImGuiSliderFlags flags)
+{
+    return DragScalarN(label, ImGuiDataType_S32, v, 4, v_speed, &v_min, &v_max, format, flags);
+}
+
+// NB: You likely want to specify the ImGuiSliderFlags_AlwaysClamp when using this.
+bool ImGui::DragIntRange2(const char* label, int* v_current_min, int* v_current_max, float v_speed, int v_min, int v_max, const char* format, const char* format_max, ImGuiSliderFlags flags)
+{
+    ImGuiWindow* window = GetCurrentWindow();
+    if (window->SkipItems)
+        return false;
+
+    ImGuiContext& g = *GImGui;
+    PushID(label);
+    BeginGroup();
+    PushMultiItemsWidths(2, CalcItemWidth());
+
+    int min_min = (v_min >= v_max) ? INT_MIN : v_min;
+    int min_max = (v_min >= v_max) ? *v_current_max : ImMin(v_max, *v_current_max);
+    ImGuiSliderFlags min_flags = flags | ((min_min == min_max) ? ImGuiSliderFlags_ReadOnly : 0);
+    bool value_changed = DragInt("##min", v_current_min, v_speed, min_min, min_max, format, min_flags);
+    PopItemWidth();
+    SameLine(0, g.Style.ItemInnerSpacing.x);
+
+    int max_min = (v_min >= v_max) ? *v_current_min : ImMax(v_min, *v_current_min);
+    int max_max = (v_min >= v_max) ? INT_MAX : v_max;
+    ImGuiSliderFlags max_flags = flags | ((max_min == max_max) ? ImGuiSliderFlags_ReadOnly : 0);
+    value_changed |= DragInt("##max", v_current_max, v_speed, max_min, max_max, format_max ? format_max : format, max_flags);
+    PopItemWidth();
+    SameLine(0, g.Style.ItemInnerSpacing.x);
+
+    TextEx(label, FindRenderedTextEnd(label));
+    EndGroup();
+    PopID();
+
+    return value_changed;
+}
+
+#ifndef IMGUI_DISABLE_OBSOLETE_FUNCTIONS
+
+// Obsolete versions with power parameter. See https://github.com/ocornut/imgui/issues/3361 for details.
+bool ImGui::DragScalar(const char* label, ImGuiDataType data_type, void* p_data, float v_speed, const void* p_min, const void* p_max, const char* format, float power)
+{
+    ImGuiSliderFlags drag_flags = ImGuiSliderFlags_None;
+    if (power != 1.0f)
+    {
+        IM_ASSERT(power == 1.0f && "Call function with ImGuiSliderFlags_Logarithmic flags instead of using the old 'float power' function!");
+        IM_ASSERT(p_min != NULL && p_max != NULL);  // When using a power curve the drag needs to have known bounds
+        drag_flags |= ImGuiSliderFlags_Logarithmic;   // Fallback for non-asserting paths
+    }
+    return DragScalar(label, data_type, p_data, v_speed, p_min, p_max, format, drag_flags);
+}
+
+bool ImGui::DragScalarN(const char* label, ImGuiDataType data_type, void* p_data, int components, float v_speed, const void* p_min, const void* p_max, const char* format, float power)
+{
+    ImGuiSliderFlags drag_flags = ImGuiSliderFlags_None;
+    if (power != 1.0f)
+    {
+        IM_ASSERT(power == 1.0f && "Call function with ImGuiSliderFlags_Logarithmic flags instead of using the old 'float power' function!");
+        IM_ASSERT(p_min != NULL && p_max != NULL);  // When using a power curve the drag needs to have known bounds
+        drag_flags |= ImGuiSliderFlags_Logarithmic;   // Fallback for non-asserting paths
+    }
+    return DragScalarN(label, data_type, p_data, components, v_speed, p_min, p_max, format, drag_flags);
+}
+
+#endif // IMGUI_DISABLE_OBSOLETE_FUNCTIONS
+
+//-------------------------------------------------------------------------
+// [SECTION] Widgets: SliderScalar, SliderFloat, SliderInt, etc.
+//-------------------------------------------------------------------------
+// - ScaleRatioFromValueT<> [Internal]
+// - ScaleValueFromRatioT<> [Internal]
+// - SliderBehaviorT<>() [Internal]
+// - SliderBehavior() [Internal]
+// - SliderScalar()
+// - SliderScalarN()
+// - SliderFloat()
+// - SliderFloat2()
+// - SliderFloat3()
+// - SliderFloat4()
+// - SliderAngle()
+// - SliderInt()
+// - SliderInt2()
+// - SliderInt3()
+// - SliderInt4()
+// - VSliderScalar()
+// - VSliderFloat()
+// - VSliderInt()
+//-------------------------------------------------------------------------
+
+// Convert a value v in the output space of a slider into a parametric position on the slider itself (the logical opposite of ScaleValueFromRatioT)
+template<typename TYPE, typename SIGNEDTYPE, typename FLOATTYPE>
+float ImGui::ScaleRatioFromValueT(ImGuiDataType data_type, TYPE v, TYPE v_min, TYPE v_max, bool is_logarithmic, float logarithmic_zero_epsilon, float zero_deadzone_halfsize)
+{
+    if (v_min == v_max)
+        return 0.0f;
+    IM_UNUSED(data_type);
+
+    const TYPE v_clamped = (v_min < v_max) ? ImClamp(v, v_min, v_max) : ImClamp(v, v_max, v_min);
+    if (is_logarithmic)
+    {
+        bool flipped = v_max < v_min;
+
+        if (flipped) // Handle the case where the range is backwards
+            ImSwap(v_min, v_max);
+
+        // Fudge min/max to avoid getting close to log(0)
+        FLOATTYPE v_min_fudged = (ImAbs((FLOATTYPE)v_min) < logarithmic_zero_epsilon) ? ((v_min < 0.0f) ? -logarithmic_zero_epsilon : logarithmic_zero_epsilon) : (FLOATTYPE)v_min;
+        FLOATTYPE v_max_fudged = (ImAbs((FLOATTYPE)v_max) < logarithmic_zero_epsilon) ? ((v_max < 0.0f) ? -logarithmic_zero_epsilon : logarithmic_zero_epsilon) : (FLOATTYPE)v_max;
+
+        // Awkward special cases - we need ranges of the form (-100 .. 0) to convert to (-100 .. -epsilon), not (-100 .. epsilon)
+        if ((v_min == 0.0f) && (v_max < 0.0f))
+            v_min_fudged = -logarithmic_zero_epsilon;
+        else if ((v_max == 0.0f) && (v_min < 0.0f))
+            v_max_fudged = -logarithmic_zero_epsilon;
+
+        float result;
+        if (v_clamped <= v_min_fudged)
+            result = 0.0f; // Workaround for values that are in-range but below our fudge
+        else if (v_clamped >= v_max_fudged)
+            result = 1.0f; // Workaround for values that are in-range but above our fudge
+        else if ((v_min * v_max) < 0.0f) // Range crosses zero, so split into two portions
+        {
+            float zero_point_center = (-(float)v_min) / ((float)v_max - (float)v_min); // The zero point in parametric space.  There's an argument we should take the logarithmic nature into account when calculating this, but for now this should do (and the most common case of a symmetrical range works fine)
+            float zero_point_snap_L = zero_point_center - zero_deadzone_halfsize;
+            float zero_point_snap_R = zero_point_center + zero_deadzone_halfsize;
+            if (v == 0.0f)
+                result = zero_point_center; // Special case for exactly zero
+            else if (v < 0.0f)
+                result = (1.0f - (float)(ImLog(-(FLOATTYPE)v_clamped / logarithmic_zero_epsilon) / ImLog(-v_min_fudged / logarithmic_zero_epsilon))) * zero_point_snap_L;
+            else
+                result = zero_point_snap_R + ((float)(ImLog((FLOATTYPE)v_clamped / logarithmic_zero_epsilon) / ImLog(v_max_fudged / logarithmic_zero_epsilon)) * (1.0f - zero_point_snap_R));
+        }
+        else if ((v_min < 0.0f) || (v_max < 0.0f)) // Entirely negative slider
+            result = 1.0f - (float)(ImLog(-(FLOATTYPE)v_clamped / -v_max_fudged) / ImLog(-v_min_fudged / -v_max_fudged));
+        else
+            result = (float)(ImLog((FLOATTYPE)v_clamped / v_min_fudged) / ImLog(v_max_fudged / v_min_fudged));
+
+        return flipped ? (1.0f - result) : result;
+    }
+    else
+    {
+        // Linear slider
+        return (float)((FLOATTYPE)(SIGNEDTYPE)(v_clamped - v_min) / (FLOATTYPE)(SIGNEDTYPE)(v_max - v_min));
+    }
+}
+
+// Convert a parametric position on a slider into a value v in the output space (the logical opposite of ScaleRatioFromValueT)
+template<typename TYPE, typename SIGNEDTYPE, typename FLOATTYPE>
+TYPE ImGui::ScaleValueFromRatioT(ImGuiDataType data_type, float t, TYPE v_min, TYPE v_max, bool is_logarithmic, float logarithmic_zero_epsilon, float zero_deadzone_halfsize)
+{
+    // We special-case the extents because otherwise our logarithmic fudging can lead to "mathematically correct"
+    // but non-intuitive behaviors like a fully-left slider not actually reaching the minimum value. Also generally simpler.
+    if (t <= 0.0f || v_min == v_max)
+        return v_min;
+    if (t >= 1.0f)
+        return v_max;
+
+    TYPE result = (TYPE)0;
+    if (is_logarithmic)
+    {
+        // Fudge min/max to avoid getting silly results close to zero
+        FLOATTYPE v_min_fudged = (ImAbs((FLOATTYPE)v_min) < logarithmic_zero_epsilon) ? ((v_min < 0.0f) ? -logarithmic_zero_epsilon : logarithmic_zero_epsilon) : (FLOATTYPE)v_min;
+        FLOATTYPE v_max_fudged = (ImAbs((FLOATTYPE)v_max) < logarithmic_zero_epsilon) ? ((v_max < 0.0f) ? -logarithmic_zero_epsilon : logarithmic_zero_epsilon) : (FLOATTYPE)v_max;
+
+        const bool flipped = v_max < v_min; // Check if range is "backwards"
+        if (flipped)
+            ImSwap(v_min_fudged, v_max_fudged);
+
+        // Awkward special case - we need ranges of the form (-100 .. 0) to convert to (-100 .. -epsilon), not (-100 .. epsilon)
+        if ((v_max == 0.0f) && (v_min < 0.0f))
+            v_max_fudged = -logarithmic_zero_epsilon;
+
+        float t_with_flip = flipped ? (1.0f - t) : t; // t, but flipped if necessary to account for us flipping the range
+
+        if ((v_min * v_max) < 0.0f) // Range crosses zero, so we have to do this in two parts
+        {
+            float zero_point_center = (-(float)ImMin(v_min, v_max)) / ImAbs((float)v_max - (float)v_min); // The zero point in parametric space
+            float zero_point_snap_L = zero_point_center - zero_deadzone_halfsize;
+            float zero_point_snap_R = zero_point_center + zero_deadzone_halfsize;
+            if (t_with_flip >= zero_point_snap_L && t_with_flip <= zero_point_snap_R)
+                result = (TYPE)0.0f; // Special case to make getting exactly zero possible (the epsilon prevents it otherwise)
+            else if (t_with_flip < zero_point_center)
+                result = (TYPE)-(logarithmic_zero_epsilon * ImPow(-v_min_fudged / logarithmic_zero_epsilon, (FLOATTYPE)(1.0f - (t_with_flip / zero_point_snap_L))));
+            else
+                result = (TYPE)(logarithmic_zero_epsilon * ImPow(v_max_fudged / logarithmic_zero_epsilon, (FLOATTYPE)((t_with_flip - zero_point_snap_R) / (1.0f - zero_point_snap_R))));
+        }
+        else if ((v_min < 0.0f) || (v_max < 0.0f)) // Entirely negative slider
+            result = (TYPE)-(-v_max_fudged * ImPow(-v_min_fudged / -v_max_fudged, (FLOATTYPE)(1.0f - t_with_flip)));
+        else
+            result = (TYPE)(v_min_fudged * ImPow(v_max_fudged / v_min_fudged, (FLOATTYPE)t_with_flip));
+    }
+    else
+    {
+        // Linear slider
+        const bool is_floating_point = (data_type == ImGuiDataType_Float) || (data_type == ImGuiDataType_Double);
+        if (is_floating_point)
+        {
+            result = ImLerp(v_min, v_max, t);
+        }
+        else if (t < 1.0)
+        {
+            // - For integer values we want the clicking position to match the grab box so we round above
+            //   This code is carefully tuned to work with large values (e.g. high ranges of U64) while preserving this property..
+            // - Not doing a *1.0 multiply at the end of a range as it tends to be lossy. While absolute aiming at a large s64/u64
+            //   range is going to be imprecise anyway, with this check we at least make the edge values matches expected limits.
+            FLOATTYPE v_new_off_f = (SIGNEDTYPE)(v_max - v_min) * t;
+            result = (TYPE)((SIGNEDTYPE)v_min + (SIGNEDTYPE)(v_new_off_f + (FLOATTYPE)(v_min > v_max ? -0.5 : 0.5)));
+        }
+    }
+
+    return result;
+}
+
+// FIXME: Try to move more of the code into shared SliderBehavior()
+template<typename TYPE, typename SIGNEDTYPE, typename FLOATTYPE>
+bool ImGui::SliderBehaviorT(const ImRect& bb, ImGuiID id, ImGuiDataType data_type, TYPE* v, const TYPE v_min, const TYPE v_max, const char* format, ImGuiSliderFlags flags, ImRect* out_grab_bb)
+{
+    ImGuiContext& g = *GImGui;
+    const ImGuiStyle& style = g.Style;
+
+    const ImGuiAxis axis = (flags & ImGuiSliderFlags_Vertical) ? ImGuiAxis_Y : ImGuiAxis_X;
+    const bool is_logarithmic = (flags & ImGuiSliderFlags_Logarithmic) != 0;
+    const bool is_floating_point = (data_type == ImGuiDataType_Float) || (data_type == ImGuiDataType_Double);
+    const SIGNEDTYPE v_range = (v_min < v_max ? v_max - v_min : v_min - v_max);
+
+    // Calculate bounds
+    const float grab_padding = 2.0f; // FIXME: Should be part of style.
+    const float slider_sz = (bb.Max[axis] - bb.Min[axis]) - grab_padding * 2.0f;
+    float grab_sz = style.GrabMinSize;
+    if (!is_floating_point && v_range >= 0)                                     // v_range < 0 may happen on integer overflows
+        grab_sz = ImMax((float)(slider_sz / (v_range + 1)), style.GrabMinSize); // For integer sliders: if possible have the grab size represent 1 unit
+    grab_sz = ImMin(grab_sz, slider_sz);
+    const float slider_usable_sz = slider_sz - grab_sz;
+    const float slider_usable_pos_min = bb.Min[axis] + grab_padding + grab_sz * 0.5f;
+    const float slider_usable_pos_max = bb.Max[axis] - grab_padding - grab_sz * 0.5f;
+
+    float logarithmic_zero_epsilon = 0.0f; // Only valid when is_logarithmic is true
+    float zero_deadzone_halfsize = 0.0f; // Only valid when is_logarithmic is true
+    if (is_logarithmic)
+    {
+        // When using logarithmic sliders, we need to clamp to avoid hitting zero, but our choice of clamp value greatly affects slider precision. We attempt to use the specified precision to estimate a good lower bound.
+        const int decimal_precision = is_floating_point ? ImParseFormatPrecision(format, 3) : 1;
+        logarithmic_zero_epsilon = ImPow(0.1f, (float)decimal_precision);
+        zero_deadzone_halfsize = (style.LogSliderDeadzone * 0.5f) / ImMax(slider_usable_sz, 1.0f);
+    }
+
+    // Process interacting with the slider
+    bool value_changed = false;
+    if (g.ActiveId == id)
+    {
+        bool set_new_value = false;
+        float clicked_t = 0.0f;
+        if (g.ActiveIdSource == ImGuiInputSource_Mouse)
+        {
+            if (!g.IO.MouseDown[0])
+            {
+                ClearActiveID();
+            }
+            else
+            {
+                const float mouse_abs_pos = g.IO.MousePos[axis];
+                if (g.ActiveIdIsJustActivated)
+                {
+                    float grab_t = ScaleRatioFromValueT<TYPE, SIGNEDTYPE, FLOATTYPE>(data_type, *v, v_min, v_max, is_logarithmic, logarithmic_zero_epsilon, zero_deadzone_halfsize);
+                    if (axis == ImGuiAxis_Y)
+                        grab_t = 1.0f - grab_t;
+                    const float grab_pos = ImLerp(slider_usable_pos_min, slider_usable_pos_max, grab_t);
+                    const bool clicked_around_grab = (mouse_abs_pos >= grab_pos - grab_sz * 0.5f - 1.0f) && (mouse_abs_pos <= grab_pos + grab_sz * 0.5f + 1.0f); // No harm being extra generous here.
+                    g.SliderGrabClickOffset = (clicked_around_grab && is_floating_point) ? mouse_abs_pos - grab_pos : 0.0f;
+                }
+                if (slider_usable_sz > 0.0f)
+                    clicked_t = ImSaturate((mouse_abs_pos - g.SliderGrabClickOffset - slider_usable_pos_min) / slider_usable_sz);
+                if (axis == ImGuiAxis_Y)
+                    clicked_t = 1.0f - clicked_t;
+                set_new_value = true;
+            }
+        }
+        else if (g.ActiveIdSource == ImGuiInputSource_Nav)
+        {
+            if (g.ActiveIdIsJustActivated)
+            {
+                g.SliderCurrentAccum = 0.0f; // Reset any stored nav delta upon activation
+                g.SliderCurrentAccumDirty = false;
+            }
+
+            const ImVec2 input_delta2 = GetNavInputAmount2d(ImGuiNavDirSourceFlags_Keyboard | ImGuiNavDirSourceFlags_PadDPad, ImGuiNavReadMode_RepeatFast, 0.0f, 0.0f);
+            float input_delta = (axis == ImGuiAxis_X) ? input_delta2.x : -input_delta2.y;
+            if (input_delta != 0.0f)
+            {
+                const int decimal_precision = is_floating_point ? ImParseFormatPrecision(format, 3) : 0;
+                if (decimal_precision > 0)
+                {
+                    input_delta /= 100.0f;    // Gamepad/keyboard tweak speeds in % of slider bounds
+                    if (IsNavInputDown(ImGuiNavInput_TweakSlow))
+                        input_delta /= 10.0f;
+                }
+                else
+                {
+                    if ((v_range >= -100.0f && v_range <= 100.0f) || IsNavInputDown(ImGuiNavInput_TweakSlow))
+                        input_delta = ((input_delta < 0.0f) ? -1.0f : +1.0f) / (float)v_range; // Gamepad/keyboard tweak speeds in integer steps
+                    else
+                        input_delta /= 100.0f;
+                }
+                if (IsNavInputDown(ImGuiNavInput_TweakFast))
+                    input_delta *= 10.0f;
+
+                g.SliderCurrentAccum += input_delta;
+                g.SliderCurrentAccumDirty = true;
+            }
+
+            float delta = g.SliderCurrentAccum;
+            if (g.NavActivatePressedId == id && !g.ActiveIdIsJustActivated)
+            {
+                ClearActiveID();
+            }
+            else if (g.SliderCurrentAccumDirty)
+            {
+                clicked_t = ScaleRatioFromValueT<TYPE, SIGNEDTYPE, FLOATTYPE>(data_type, *v, v_min, v_max, is_logarithmic, logarithmic_zero_epsilon, zero_deadzone_halfsize);
+
+                if ((clicked_t >= 1.0f && delta > 0.0f) || (clicked_t <= 0.0f && delta < 0.0f)) // This is to avoid applying the saturation when already past the limits
+                {
+                    set_new_value = false;
+                    g.SliderCurrentAccum = 0.0f; // If pushing up against the limits, don't continue to accumulate
+                }
+                else
+                {
+                    set_new_value = true;
+                    float old_clicked_t = clicked_t;
+                    clicked_t = ImSaturate(clicked_t + delta);
+
+                    // Calculate what our "new" clicked_t will be, and thus how far we actually moved the slider, and subtract this from the accumulator
+                    TYPE v_new = ScaleValueFromRatioT<TYPE, SIGNEDTYPE, FLOATTYPE>(data_type, clicked_t, v_min, v_max, is_logarithmic, logarithmic_zero_epsilon, zero_deadzone_halfsize);
+                    if (is_floating_point && !(flags & ImGuiSliderFlags_NoRoundToFormat))
+                        v_new = RoundScalarWithFormatT<TYPE>(format, data_type, v_new);
+                    float new_clicked_t = ScaleRatioFromValueT<TYPE, SIGNEDTYPE, FLOATTYPE>(data_type, v_new, v_min, v_max, is_logarithmic, logarithmic_zero_epsilon, zero_deadzone_halfsize);
+
+                    if (delta > 0)
+                        g.SliderCurrentAccum -= ImMin(new_clicked_t - old_clicked_t, delta);
+                    else
+                        g.SliderCurrentAccum -= ImMax(new_clicked_t - old_clicked_t, delta);
+                }
+
+                g.SliderCurrentAccumDirty = false;
+            }
+        }
+
+        if (set_new_value)
+        {
+            TYPE v_new = ScaleValueFromRatioT<TYPE, SIGNEDTYPE, FLOATTYPE>(data_type, clicked_t, v_min, v_max, is_logarithmic, logarithmic_zero_epsilon, zero_deadzone_halfsize);
+
+            // Round to user desired precision based on format string
+            if (is_floating_point && !(flags & ImGuiSliderFlags_NoRoundToFormat))
+                v_new = RoundScalarWithFormatT<TYPE>(format, data_type, v_new);
+
+            // Apply result
+            if (*v != v_new)
+            {
+                *v = v_new;
+                value_changed = true;
+            }
+        }
+    }
+
+    if (slider_sz < 1.0f)
+    {
+        *out_grab_bb = ImRect(bb.Min, bb.Min);
+    }
+    else
+    {
+        // Output grab position so it can be displayed by the caller
+        float grab_t = ScaleRatioFromValueT<TYPE, SIGNEDTYPE, FLOATTYPE>(data_type, *v, v_min, v_max, is_logarithmic, logarithmic_zero_epsilon, zero_deadzone_halfsize);
+        if (axis == ImGuiAxis_Y)
+            grab_t = 1.0f - grab_t;
+        const float grab_pos = ImLerp(slider_usable_pos_min, slider_usable_pos_max, grab_t);
+        if (axis == ImGuiAxis_X)
+            *out_grab_bb = ImRect(grab_pos - grab_sz * 0.5f, bb.Min.y + grab_padding, grab_pos + grab_sz * 0.5f, bb.Max.y - grab_padding);
+        else
+            *out_grab_bb = ImRect(bb.Min.x + grab_padding, grab_pos - grab_sz * 0.5f, bb.Max.x - grab_padding, grab_pos + grab_sz * 0.5f);
+    }
+
+    return value_changed;
+}
+
+// For 32-bit and larger types, slider bounds are limited to half the natural type range.
+// So e.g. an integer Slider between INT_MAX-10 and INT_MAX will fail, but an integer Slider between INT_MAX/2-10 and INT_MAX/2 will be ok.
+// It would be possible to lift that limitation with some work but it doesn't seem to be worth it for sliders.
+bool ImGui::SliderBehavior(const ImRect& bb, ImGuiID id, ImGuiDataType data_type, void* p_v, const void* p_min, const void* p_max, const char* format, ImGuiSliderFlags flags, ImRect* out_grab_bb)
+{
+    // Read imgui.cpp "API BREAKING CHANGES" section for 1.78 if you hit this assert.
+    IM_ASSERT((flags == 1 || (flags & ImGuiSliderFlags_InvalidMask_) == 0) && "Invalid ImGuiSliderFlags flag!  Has the 'float power' argument been mistakenly cast to flags? Call function with ImGuiSliderFlags_Logarithmic flags instead.");
+
+    ImGuiContext& g = *GImGui;
+    if ((g.LastItemData.InFlags & ImGuiItemFlags_ReadOnly) || (flags & ImGuiSliderFlags_ReadOnly))
+        return false;
+
+    switch (data_type)
+    {
+    case ImGuiDataType_S8:  { ImS32 v32 = (ImS32)*(ImS8*)p_v;  bool r = SliderBehaviorT<ImS32, ImS32, float>(bb, id, ImGuiDataType_S32, &v32, *(const ImS8*)p_min,  *(const ImS8*)p_max,  format, flags, out_grab_bb); if (r) *(ImS8*)p_v  = (ImS8)v32;  return r; }
+    case ImGuiDataType_U8:  { ImU32 v32 = (ImU32)*(ImU8*)p_v;  bool r = SliderBehaviorT<ImU32, ImS32, float>(bb, id, ImGuiDataType_U32, &v32, *(const ImU8*)p_min,  *(const ImU8*)p_max,  format, flags, out_grab_bb); if (r) *(ImU8*)p_v  = (ImU8)v32;  return r; }
+    case ImGuiDataType_S16: { ImS32 v32 = (ImS32)*(ImS16*)p_v; bool r = SliderBehaviorT<ImS32, ImS32, float>(bb, id, ImGuiDataType_S32, &v32, *(const ImS16*)p_min, *(const ImS16*)p_max, format, flags, out_grab_bb); if (r) *(ImS16*)p_v = (ImS16)v32; return r; }
+    case ImGuiDataType_U16: { ImU32 v32 = (ImU32)*(ImU16*)p_v; bool r = SliderBehaviorT<ImU32, ImS32, float>(bb, id, ImGuiDataType_U32, &v32, *(const ImU16*)p_min, *(const ImU16*)p_max, format, flags, out_grab_bb); if (r) *(ImU16*)p_v = (ImU16)v32; return r; }
+    case ImGuiDataType_S32:
+        IM_ASSERT(*(const ImS32*)p_min >= IM_S32_MIN / 2 && *(const ImS32*)p_max <= IM_S32_MAX / 2);
+        return SliderBehaviorT<ImS32, ImS32, float >(bb, id, data_type, (ImS32*)p_v,  *(const ImS32*)p_min,  *(const ImS32*)p_max,  format, flags, out_grab_bb);
+    case ImGuiDataType_U32:
+        IM_ASSERT(*(const ImU32*)p_max <= IM_U32_MAX / 2);
+        return SliderBehaviorT<ImU32, ImS32, float >(bb, id, data_type, (ImU32*)p_v,  *(const ImU32*)p_min,  *(const ImU32*)p_max,  format, flags, out_grab_bb);
+    case ImGuiDataType_S64:
+        IM_ASSERT(*(const ImS64*)p_min >= IM_S64_MIN / 2 && *(const ImS64*)p_max <= IM_S64_MAX / 2);
+        return SliderBehaviorT<ImS64, ImS64, double>(bb, id, data_type, (ImS64*)p_v,  *(const ImS64*)p_min,  *(const ImS64*)p_max,  format, flags, out_grab_bb);
+    case ImGuiDataType_U64:
+        IM_ASSERT(*(const ImU64*)p_max <= IM_U64_MAX / 2);
+        return SliderBehaviorT<ImU64, ImS64, double>(bb, id, data_type, (ImU64*)p_v,  *(const ImU64*)p_min,  *(const ImU64*)p_max,  format, flags, out_grab_bb);
+    case ImGuiDataType_Float:
+        IM_ASSERT(*(const float*)p_min >= -FLT_MAX / 2.0f && *(const float*)p_max <= FLT_MAX / 2.0f);
+        return SliderBehaviorT<float, float, float >(bb, id, data_type, (float*)p_v,  *(const float*)p_min,  *(const float*)p_max,  format, flags, out_grab_bb);
+    case ImGuiDataType_Double:
+        IM_ASSERT(*(const double*)p_min >= -DBL_MAX / 2.0f && *(const double*)p_max <= DBL_MAX / 2.0f);
+        return SliderBehaviorT<double, double, double>(bb, id, data_type, (double*)p_v, *(const double*)p_min, *(const double*)p_max, format, flags, out_grab_bb);
+    case ImGuiDataType_COUNT: break;
+    }
+    IM_ASSERT(0);
+    return false;
+}
+
+// Note: p_data, p_min and p_max are _pointers_ to a memory address holding the data. For a slider, they are all required.
+// Read code of e.g. SliderFloat(), SliderInt() etc. or examples in 'Demo->Widgets->Data Types' to understand how to use this function directly.
+bool ImGui::SliderScalar(const char* label, ImGuiDataType data_type, void* p_data, const void* p_min, const void* p_max, const char* format, ImGuiSliderFlags flags)
+{
+    ImGuiWindow* window = GetCurrentWindow();
+    if (window->SkipItems)
+        return false;
+
+    ImGuiContext& g = *GImGui;
+    const ImGuiStyle& style = g.Style;
+    const ImGuiID id = window->GetID(label);
+    const float w = CalcItemWidth();
+
+    const ImVec2 label_size = CalcTextSize(label, NULL, true);
+    const ImRect frame_bb(window->DC.CursorPos, window->DC.CursorPos + ImVec2(w, label_size.y + style.FramePadding.y * 2.0f));
+    const ImRect total_bb(frame_bb.Min, frame_bb.Max + ImVec2(label_size.x > 0.0f ? style.ItemInnerSpacing.x + label_size.x : 0.0f, 0.0f));
+
+    const bool temp_input_allowed = (flags & ImGuiSliderFlags_NoInput) == 0;
+    ItemSize(total_bb, style.FramePadding.y);
+    if (!ItemAdd(total_bb, id, &frame_bb, temp_input_allowed ? ImGuiItemFlags_Inputable : 0))
+        return false;
+
+    // Default format string when passing NULL
+    if (format == NULL)
+        format = DataTypeGetInfo(data_type)->PrintFmt;
+    else if (data_type == ImGuiDataType_S32 && strcmp(format, "%d") != 0) // (FIXME-LEGACY: Patch old "%.0f" format string to use "%d", read function more details.)
+        format = PatchFormatStringFloatToInt(format);
+
+    const bool hovered = ItemHoverable(frame_bb, id);
+    bool temp_input_is_active = temp_input_allowed && TempInputIsActive(id);
+    if (!temp_input_is_active)
+    {
+        // Tabbing or CTRL-clicking on Slider turns it into an input box
+        const bool input_requested_by_tabbing = temp_input_allowed && (g.LastItemData.StatusFlags & ImGuiItemStatusFlags_FocusedByTabbing) != 0;
+        const bool clicked = (hovered && g.IO.MouseClicked[0]);
+        const bool make_active = (input_requested_by_tabbing || clicked || g.NavActivateId == id || g.NavActivateInputId == id);
+        if (make_active && temp_input_allowed)
+            if (input_requested_by_tabbing || (clicked && g.IO.KeyCtrl) || g.NavActivateInputId == id)
+                temp_input_is_active = true;
+
+        if (make_active && !temp_input_is_active)
+        {
+            SetActiveID(id, window);
+            SetFocusID(id, window);
+            FocusWindow(window);
+            g.ActiveIdUsingNavDirMask |= (1 << ImGuiDir_Left) | (1 << ImGuiDir_Right);
+        }
+    }
+
+    if (temp_input_is_active)
+    {
+        // Only clamp CTRL+Click input when ImGuiSliderFlags_AlwaysClamp is set
+        const bool is_clamp_input = (flags & ImGuiSliderFlags_AlwaysClamp) != 0;
+        return TempInputScalar(frame_bb, id, label, data_type, p_data, format, is_clamp_input ? p_min : NULL, is_clamp_input ? p_max : NULL);
+    }
+
+    // Draw frame
+    const ImU32 frame_col = GetColorU32(g.ActiveId == id ? ImGuiCol_FrameBgActive : hovered ? ImGuiCol_FrameBgHovered : ImGuiCol_FrameBg);
+    RenderNavHighlight(frame_bb, id);
+    RenderFrame(frame_bb.Min, frame_bb.Max, frame_col, true, g.Style.FrameRounding);
+
+    // Slider behavior
+    ImRect grab_bb;
+    const bool value_changed = SliderBehavior(frame_bb, id, data_type, p_data, p_min, p_max, format, flags, &grab_bb);
+    if (value_changed)
+        MarkItemEdited(id);
+
+    // Render grab
+    if (grab_bb.Max.x > grab_bb.Min.x)
+        window->DrawList->AddRectFilled(grab_bb.Min, grab_bb.Max, GetColorU32(g.ActiveId == id ? ImGuiCol_SliderGrabActive : ImGuiCol_SliderGrab), style.GrabRounding);
+
+    // Display value using user-provided display format so user can add prefix/suffix/decorations to the value.
+    char value_buf[64];
+    const char* value_buf_end = value_buf + DataTypeFormatString(value_buf, IM_ARRAYSIZE(value_buf), data_type, p_data, format);
+    if (g.LogEnabled)
+        LogSetNextTextDecoration("{", "}");
+    RenderTextClipped(frame_bb.Min, frame_bb.Max, value_buf, value_buf_end, NULL, ImVec2(0.5f, 0.5f));
+
+    if (label_size.x > 0.0f)
+        RenderText(ImVec2(frame_bb.Max.x + style.ItemInnerSpacing.x, frame_bb.Min.y + style.FramePadding.y), label);
+
+    IMGUI_TEST_ENGINE_ITEM_INFO(id, label, g.LastItemData.StatusFlags);
+    return value_changed;
+}
+
+// Add multiple sliders on 1 line for compact edition of multiple components
+bool ImGui::SliderScalarN(const char* label, ImGuiDataType data_type, void* v, int components, const void* v_min, const void* v_max, const char* format, ImGuiSliderFlags flags)
+{
+    ImGuiWindow* window = GetCurrentWindow();
+    if (window->SkipItems)
+        return false;
+
+    ImGuiContext& g = *GImGui;
+    bool value_changed = false;
+    BeginGroup();
+    PushID(label);
+    PushMultiItemsWidths(components, CalcItemWidth());
+    size_t type_size = GDataTypeInfo[data_type].Size;
+    for (int i = 0; i < components; i++)
+    {
+        PushID(i);
+        if (i > 0)
+            SameLine(0, g.Style.ItemInnerSpacing.x);
+        value_changed |= SliderScalar("", data_type, v, v_min, v_max, format, flags);
+        PopID();
+        PopItemWidth();
+        v = (void*)((char*)v + type_size);
+    }
+    PopID();
+
+    const char* label_end = FindRenderedTextEnd(label);
+    if (label != label_end)
+    {
+        SameLine(0, g.Style.ItemInnerSpacing.x);
+        TextEx(label, label_end);
+    }
+
+    EndGroup();
+    return value_changed;
+}
+
+bool ImGui::SliderFloat(const char* label, float* v, float v_min, float v_max, const char* format, ImGuiSliderFlags flags)
+{
+    return SliderScalar(label, ImGuiDataType_Float, v, &v_min, &v_max, format, flags);
+}
+
+bool ImGui::SliderFloat2(const char* label, float v[2], float v_min, float v_max, const char* format, ImGuiSliderFlags flags)
+{
+    return SliderScalarN(label, ImGuiDataType_Float, v, 2, &v_min, &v_max, format, flags);
+}
+
+bool ImGui::SliderFloat3(const char* label, float v[3], float v_min, float v_max, const char* format, ImGuiSliderFlags flags)
+{
+    return SliderScalarN(label, ImGuiDataType_Float, v, 3, &v_min, &v_max, format, flags);
+}
+
+bool ImGui::SliderFloat4(const char* label, float v[4], float v_min, float v_max, const char* format, ImGuiSliderFlags flags)
+{
+    return SliderScalarN(label, ImGuiDataType_Float, v, 4, &v_min, &v_max, format, flags);
+}
+
+bool ImGui::SliderAngle(const char* label, float* v_rad, float v_degrees_min, float v_degrees_max, const char* format, ImGuiSliderFlags flags)
+{
+    if (format == NULL)
+        format = "%.0f deg";
+    float v_deg = (*v_rad) * 360.0f / (2 * IM_PI);
+    bool value_changed = SliderFloat(label, &v_deg, v_degrees_min, v_degrees_max, format, flags);
+    *v_rad = v_deg * (2 * IM_PI) / 360.0f;
+    return value_changed;
+}
+
+bool ImGui::SliderInt(const char* label, int* v, int v_min, int v_max, const char* format, ImGuiSliderFlags flags)
+{
+    return SliderScalar(label, ImGuiDataType_S32, v, &v_min, &v_max, format, flags);
+}
+
+bool ImGui::SliderInt2(const char* label, int v[2], int v_min, int v_max, const char* format, ImGuiSliderFlags flags)
+{
+    return SliderScalarN(label, ImGuiDataType_S32, v, 2, &v_min, &v_max, format, flags);
+}
+
+bool ImGui::SliderInt3(const char* label, int v[3], int v_min, int v_max, const char* format, ImGuiSliderFlags flags)
+{
+    return SliderScalarN(label, ImGuiDataType_S32, v, 3, &v_min, &v_max, format, flags);
+}
+
+bool ImGui::SliderInt4(const char* label, int v[4], int v_min, int v_max, const char* format, ImGuiSliderFlags flags)
+{
+    return SliderScalarN(label, ImGuiDataType_S32, v, 4, &v_min, &v_max, format, flags);
+}
+
+bool ImGui::VSliderScalar(const char* label, const ImVec2& size, ImGuiDataType data_type, void* p_data, const void* p_min, const void* p_max, const char* format, ImGuiSliderFlags flags)
+{
+    ImGuiWindow* window = GetCurrentWindow();
+    if (window->SkipItems)
+        return false;
+
+    ImGuiContext& g = *GImGui;
+    const ImGuiStyle& style = g.Style;
+    const ImGuiID id = window->GetID(label);
+
+    const ImVec2 label_size = CalcTextSize(label, NULL, true);
+    const ImRect frame_bb(window->DC.CursorPos, window->DC.CursorPos + size);
+    const ImRect bb(frame_bb.Min, frame_bb.Max + ImVec2(label_size.x > 0.0f ? style.ItemInnerSpacing.x + label_size.x : 0.0f, 0.0f));
+
+    ItemSize(bb, style.FramePadding.y);
+    if (!ItemAdd(frame_bb, id))
+        return false;
+
+    // Default format string when passing NULL
+    if (format == NULL)
+        format = DataTypeGetInfo(data_type)->PrintFmt;
+    else if (data_type == ImGuiDataType_S32 && strcmp(format, "%d") != 0) // (FIXME-LEGACY: Patch old "%.0f" format string to use "%d", read function more details.)
+        format = PatchFormatStringFloatToInt(format);
+
+    const bool hovered = ItemHoverable(frame_bb, id);
+    if ((hovered && g.IO.MouseClicked[0]) || g.NavActivateId == id || g.NavActivateInputId == id)
+    {
+        SetActiveID(id, window);
+        SetFocusID(id, window);
+        FocusWindow(window);
+        g.ActiveIdUsingNavDirMask |= (1 << ImGuiDir_Up) | (1 << ImGuiDir_Down);
+    }
+
+    // Draw frame
+    const ImU32 frame_col = GetColorU32(g.ActiveId == id ? ImGuiCol_FrameBgActive : hovered ? ImGuiCol_FrameBgHovered : ImGuiCol_FrameBg);
+    RenderNavHighlight(frame_bb, id);
+    RenderFrame(frame_bb.Min, frame_bb.Max, frame_col, true, g.Style.FrameRounding);
+
+    // Slider behavior
+    ImRect grab_bb;
+    const bool value_changed = SliderBehavior(frame_bb, id, data_type, p_data, p_min, p_max, format, flags | ImGuiSliderFlags_Vertical, &grab_bb);
+    if (value_changed)
+        MarkItemEdited(id);
+
+    // Render grab
+    if (grab_bb.Max.y > grab_bb.Min.y)
+        window->DrawList->AddRectFilled(grab_bb.Min, grab_bb.Max, GetColorU32(g.ActiveId == id ? ImGuiCol_SliderGrabActive : ImGuiCol_SliderGrab), style.GrabRounding);
+
+    // Display value using user-provided display format so user can add prefix/suffix/decorations to the value.
+    // For the vertical slider we allow centered text to overlap the frame padding
+    char value_buf[64];
+    const char* value_buf_end = value_buf + DataTypeFormatString(value_buf, IM_ARRAYSIZE(value_buf), data_type, p_data, format);
+    RenderTextClipped(ImVec2(frame_bb.Min.x, frame_bb.Min.y + style.FramePadding.y), frame_bb.Max, value_buf, value_buf_end, NULL, ImVec2(0.5f, 0.0f));
+    if (label_size.x > 0.0f)
+        RenderText(ImVec2(frame_bb.Max.x + style.ItemInnerSpacing.x, frame_bb.Min.y + style.FramePadding.y), label);
+
+    return value_changed;
+}
+
+bool ImGui::VSliderFloat(const char* label, const ImVec2& size, float* v, float v_min, float v_max, const char* format, ImGuiSliderFlags flags)
+{
+    return VSliderScalar(label, size, ImGuiDataType_Float, v, &v_min, &v_max, format, flags);
+}
+
+bool ImGui::VSliderInt(const char* label, const ImVec2& size, int* v, int v_min, int v_max, const char* format, ImGuiSliderFlags flags)
+{
+    return VSliderScalar(label, size, ImGuiDataType_S32, v, &v_min, &v_max, format, flags);
+}
+
+#ifndef IMGUI_DISABLE_OBSOLETE_FUNCTIONS
+
+// Obsolete versions with power parameter. See https://github.com/ocornut/imgui/issues/3361 for details.
+bool ImGui::SliderScalar(const char* label, ImGuiDataType data_type, void* p_data, const void* p_min, const void* p_max, const char* format, float power)
+{
+    ImGuiSliderFlags slider_flags = ImGuiSliderFlags_None;
+    if (power != 1.0f)
+    {
+        IM_ASSERT(power == 1.0f && "Call function with ImGuiSliderFlags_Logarithmic flags instead of using the old 'float power' function!");
+        slider_flags |= ImGuiSliderFlags_Logarithmic;   // Fallback for non-asserting paths
+    }
+    return SliderScalar(label, data_type, p_data, p_min, p_max, format, slider_flags);
+}
+
+bool ImGui::SliderScalarN(const char* label, ImGuiDataType data_type, void* v, int components, const void* v_min, const void* v_max, const char* format, float power)
+{
+    ImGuiSliderFlags slider_flags = ImGuiSliderFlags_None;
+    if (power != 1.0f)
+    {
+        IM_ASSERT(power == 1.0f && "Call function with ImGuiSliderFlags_Logarithmic flags instead of using the old 'float power' function!");
+        slider_flags |= ImGuiSliderFlags_Logarithmic;   // Fallback for non-asserting paths
+    }
+    return SliderScalarN(label, data_type, v, components, v_min, v_max, format, slider_flags);
+}
+
+#endif // IMGUI_DISABLE_OBSOLETE_FUNCTIONS
+
+//-------------------------------------------------------------------------
+// [SECTION] Widgets: InputScalar, InputFloat, InputInt, etc.
+//-------------------------------------------------------------------------
+// - ImParseFormatFindStart() [Internal]
+// - ImParseFormatFindEnd() [Internal]
+// - ImParseFormatTrimDecorations() [Internal]
+// - ImParseFormatSanitizeForPrinting() [Internal]
+// - ImParseFormatSanitizeForScanning() [Internal]
+// - ImParseFormatPrecision() [Internal]
+// - TempInputTextScalar() [Internal]
+// - InputScalar()
+// - InputScalarN()
+// - InputFloat()
+// - InputFloat2()
+// - InputFloat3()
+// - InputFloat4()
+// - InputInt()
+// - InputInt2()
+// - InputInt3()
+// - InputInt4()
+// - InputDouble()
+//-------------------------------------------------------------------------
+
+// We don't use strchr() because our strings are usually very short and often start with '%'
+const char* ImParseFormatFindStart(const char* fmt)
+{
+    while (char c = fmt[0])
+    {
+        if (c == '%' && fmt[1] != '%')
+            return fmt;
+        else if (c == '%')
+            fmt++;
+        fmt++;
+    }
+    return fmt;
+}
+
+const char* ImParseFormatFindEnd(const char* fmt)
+{
+    // Printf/scanf types modifiers: I/L/h/j/l/t/w/z. Other uppercase letters qualify as types aka end of the format.
+    if (fmt[0] != '%')
+        return fmt;
+    const unsigned int ignored_uppercase_mask = (1 << ('I'-'A')) | (1 << ('L'-'A'));
+    const unsigned int ignored_lowercase_mask = (1 << ('h'-'a')) | (1 << ('j'-'a')) | (1 << ('l'-'a')) | (1 << ('t'-'a')) | (1 << ('w'-'a')) | (1 << ('z'-'a'));
+    for (char c; (c = *fmt) != 0; fmt++)
+    {
+        if (c >= 'A' && c <= 'Z' && ((1 << (c - 'A')) & ignored_uppercase_mask) == 0)
+            return fmt + 1;
+        if (c >= 'a' && c <= 'z' && ((1 << (c - 'a')) & ignored_lowercase_mask) == 0)
+            return fmt + 1;
+    }
+    return fmt;
+}
+
+// Extract the format out of a format string with leading or trailing decorations
+//  fmt = "blah blah"  -> return fmt
+//  fmt = "%.3f"       -> return fmt
+//  fmt = "hello %.3f" -> return fmt + 6
+//  fmt = "%.3f hello" -> return buf written with "%.3f"
+const char* ImParseFormatTrimDecorations(const char* fmt, char* buf, size_t buf_size)
+{
+    const char* fmt_start = ImParseFormatFindStart(fmt);
+    if (fmt_start[0] != '%')
+        return fmt;
+    const char* fmt_end = ImParseFormatFindEnd(fmt_start);
+    if (fmt_end[0] == 0) // If we only have leading decoration, we don't need to copy the data.
+        return fmt_start;
+    ImStrncpy(buf, fmt_start, ImMin((size_t)(fmt_end - fmt_start) + 1, buf_size));
+    return buf;
+}
+
+// Sanitize format
+// - Zero terminate so extra characters after format (e.g. "%f123") don't confuse atof/atoi
+// - stb_sprintf.h supports several new modifiers which format numbers in a way that also makes them incompatible atof/atoi.
+void ImParseFormatSanitizeForPrinting(const char* fmt_in, char* fmt_out, size_t fmt_out_size)
+{
+    const char* fmt_end = ImParseFormatFindEnd(fmt_in);
+    IM_UNUSED(fmt_out_size);
+    IM_ASSERT((size_t)(fmt_end - fmt_in + 1) < fmt_out_size); // Format is too long, let us know if this happens to you!
+    while (fmt_in < fmt_end)
+    {
+        char c = *fmt_in++;
+        if (c != '\'' && c != '$' && c != '_') // Custom flags provided by stb_sprintf.h. POSIX 2008 also supports '.
+            *(fmt_out++) = c;
+    }
+    *fmt_out = 0; // Zero-terminate
+}
+
+// - For scanning we need to remove all width and precision fields "%3.7f" -> "%f". BUT don't strip types like "%I64d" which includes digits. ! "%07I64d" -> "%I64d"
+const char* ImParseFormatSanitizeForScanning(const char* fmt_in, char* fmt_out, size_t fmt_out_size)
+{
+    const char* fmt_end = ImParseFormatFindEnd(fmt_in);
+    const char* fmt_out_begin = fmt_out;
+    IM_UNUSED(fmt_out_size);
+    IM_ASSERT((size_t)(fmt_end - fmt_in + 1) < fmt_out_size); // Format is too long, let us know if this happens to you!
+    bool has_type = false;
+    while (fmt_in < fmt_end)
+    {
+        char c = *fmt_in++;
+        if (!has_type && ((c >= '0' && c <= '9') || c == '.'))
+            continue;
+        has_type |= ((c >= 'a' && c <= 'z') || (c >= 'A' && c <= 'Z')); // Stop skipping digits
+        if (c != '\'' && c != '$' && c != '_') // Custom flags provided by stb_sprintf.h. POSIX 2008 also supports '.
+            *(fmt_out++) = c;
+    }
+    *fmt_out = 0; // Zero-terminate
+    return fmt_out_begin;
+}
+
+template<typename TYPE>
+static const char* ImAtoi(const char* src, TYPE* output)
+{
+    int negative = 0;
+    if (*src == '-') { negative = 1; src++; }
+    if (*src == '+') { src++; }
+    TYPE v = 0;
+    while (*src >= '0' && *src <= '9')
+        v = (v * 10) + (*src++ - '0');
+    *output = negative ? -v : v;
+    return src;
+}
+
+// Parse display precision back from the display format string
+// FIXME: This is still used by some navigation code path to infer a minimum tweak step, but we should aim to rework widgets so it isn't needed.
+int ImParseFormatPrecision(const char* fmt, int default_precision)
+{
+    fmt = ImParseFormatFindStart(fmt);
+    if (fmt[0] != '%')
+        return default_precision;
+    fmt++;
+    while (*fmt >= '0' && *fmt <= '9')
+        fmt++;
+    int precision = INT_MAX;
+    if (*fmt == '.')
+    {
+        fmt = ImAtoi<int>(fmt + 1, &precision);
+        if (precision < 0 || precision > 99)
+            precision = default_precision;
+    }
+    if (*fmt == 'e' || *fmt == 'E') // Maximum precision with scientific notation
+        precision = -1;
+    if ((*fmt == 'g' || *fmt == 'G') && precision == INT_MAX)
+        precision = -1;
+    return (precision == INT_MAX) ? default_precision : precision;
+}
+
+// Create text input in place of another active widget (e.g. used when doing a CTRL+Click on drag/slider widgets)
+// FIXME: Facilitate using this in variety of other situations.
+bool ImGui::TempInputText(const ImRect& bb, ImGuiID id, const char* label, char* buf, int buf_size, ImGuiInputTextFlags flags)
+{
+    // On the first frame, g.TempInputTextId == 0, then on subsequent frames it becomes == id.
+    // We clear ActiveID on the first frame to allow the InputText() taking it back.
+    ImGuiContext& g = *GImGui;
+    const bool init = (g.TempInputId != id);
+    if (init)
+        ClearActiveID();
+
+    g.CurrentWindow->DC.CursorPos = bb.Min;
+    bool value_changed = InputTextEx(label, NULL, buf, buf_size, bb.GetSize(), flags | ImGuiInputTextFlags_MergedItem);
+    if (init)
+    {
+        // First frame we started displaying the InputText widget, we expect it to take the active id.
+        IM_ASSERT(g.ActiveId == id);
+        g.TempInputId = g.ActiveId;
+    }
+    return value_changed;
+}
+
+static inline ImGuiInputTextFlags InputScalar_DefaultCharsFilter(ImGuiDataType data_type, const char* format)
+{
+    if (data_type == ImGuiDataType_Float || data_type == ImGuiDataType_Double)
+        return ImGuiInputTextFlags_CharsScientific;
+    const char format_last_char = format[0] ? format[strlen(format) - 1] : 0;
+    return (format_last_char == 'x' || format_last_char == 'X') ? ImGuiInputTextFlags_CharsHexadecimal : ImGuiInputTextFlags_CharsDecimal;
+}
+
+// Note that Drag/Slider functions are only forwarding the min/max values clamping values if the ImGuiSliderFlags_AlwaysClamp flag is set!
+// This is intended: this way we allow CTRL+Click manual input to set a value out of bounds, for maximum flexibility.
+// However this may not be ideal for all uses, as some user code may break on out of bound values.
+bool ImGui::TempInputScalar(const ImRect& bb, ImGuiID id, const char* label, ImGuiDataType data_type, void* p_data, const char* format, const void* p_clamp_min, const void* p_clamp_max)
+{
+    char fmt_buf[32];
+    char data_buf[32];
+    format = ImParseFormatTrimDecorations(format, fmt_buf, IM_ARRAYSIZE(fmt_buf));
+    DataTypeFormatString(data_buf, IM_ARRAYSIZE(data_buf), data_type, p_data, format);
+    ImStrTrimBlanks(data_buf);
+
+    ImGuiInputTextFlags flags = ImGuiInputTextFlags_AutoSelectAll | ImGuiInputTextFlags_NoMarkEdited;
+    flags |= InputScalar_DefaultCharsFilter(data_type, format);
+
+    bool value_changed = false;
+    if (TempInputText(bb, id, label, data_buf, IM_ARRAYSIZE(data_buf), flags))
+    {
+        // Backup old value
+        size_t data_type_size = DataTypeGetInfo(data_type)->Size;
+        ImGuiDataTypeTempStorage data_backup;
+        memcpy(&data_backup, p_data, data_type_size);
+
+        // Apply new value (or operations) then clamp
+        DataTypeApplyFromText(data_buf, data_type, p_data, format);
+        if (p_clamp_min || p_clamp_max)
+        {
+            if (p_clamp_min && p_clamp_max && DataTypeCompare(data_type, p_clamp_min, p_clamp_max) > 0)
+                ImSwap(p_clamp_min, p_clamp_max);
+            DataTypeClamp(data_type, p_data, p_clamp_min, p_clamp_max);
+        }
+
+        // Only mark as edited if new value is different
+        value_changed = memcmp(&data_backup, p_data, data_type_size) != 0;
+        if (value_changed)
+            MarkItemEdited(id);
+    }
+    return value_changed;
+}
+
+// Note: p_data, p_step, p_step_fast are _pointers_ to a memory address holding the data. For an Input widget, p_step and p_step_fast are optional.
+// Read code of e.g. InputFloat(), InputInt() etc. or examples in 'Demo->Widgets->Data Types' to understand how to use this function directly.
+bool ImGui::InputScalar(const char* label, ImGuiDataType data_type, void* p_data, const void* p_step, const void* p_step_fast, const char* format, ImGuiInputTextFlags flags)
+{
+    ImGuiWindow* window = GetCurrentWindow();
+    if (window->SkipItems)
+        return false;
+
+    ImGuiContext& g = *GImGui;
+    ImGuiStyle& style = g.Style;
+
+    if (format == NULL)
+        format = DataTypeGetInfo(data_type)->PrintFmt;
+
+    char buf[64];
+    DataTypeFormatString(buf, IM_ARRAYSIZE(buf), data_type, p_data, format);
+
+    // Testing ActiveId as a minor optimization as filtering is not needed until active
+    if (g.ActiveId == 0 && (flags & (ImGuiInputTextFlags_CharsDecimal | ImGuiInputTextFlags_CharsHexadecimal | ImGuiInputTextFlags_CharsScientific)) == 0)
+        flags |= InputScalar_DefaultCharsFilter(data_type, format);
+    flags |= ImGuiInputTextFlags_AutoSelectAll | ImGuiInputTextFlags_NoMarkEdited; // We call MarkItemEdited() ourselves by comparing the actual data rather than the string.
+
+    bool value_changed = false;
+    if (p_step != NULL)
+    {
+        const float button_size = GetFrameHeight();
+
+        BeginGroup(); // The only purpose of the group here is to allow the caller to query item data e.g. IsItemActive()
+        PushID(label);
+        SetNextItemWidth(ImMax(1.0f, CalcItemWidth() - (button_size + style.ItemInnerSpacing.x) * 2));
+        if (InputText("", buf, IM_ARRAYSIZE(buf), flags)) // PushId(label) + "" gives us the expected ID from outside point of view
+            value_changed = DataTypeApplyFromText(buf, data_type, p_data, format);
+
+        // Step buttons
+        const ImVec2 backup_frame_padding = style.FramePadding;
+        style.FramePadding.x = style.FramePadding.y;
+        ImGuiButtonFlags button_flags = ImGuiButtonFlags_Repeat | ImGuiButtonFlags_DontClosePopups;
+        if (flags & ImGuiInputTextFlags_ReadOnly)
+            BeginDisabled();
+        SameLine(0, style.ItemInnerSpacing.x);
+        if (ButtonEx("-", ImVec2(button_size, button_size), button_flags))
+        {
+            DataTypeApplyOp(data_type, '-', p_data, p_data, g.IO.KeyCtrl && p_step_fast ? p_step_fast : p_step);
+            value_changed = true;
+        }
+        SameLine(0, style.ItemInnerSpacing.x);
+        if (ButtonEx("+", ImVec2(button_size, button_size), button_flags))
+        {
+            DataTypeApplyOp(data_type, '+', p_data, p_data, g.IO.KeyCtrl && p_step_fast ? p_step_fast : p_step);
+            value_changed = true;
+        }
+        if (flags & ImGuiInputTextFlags_ReadOnly)
+            EndDisabled();
+
+        const char* label_end = FindRenderedTextEnd(label);
+        if (label != label_end)
+        {
+            SameLine(0, style.ItemInnerSpacing.x);
+            TextEx(label, label_end);
+        }
+        style.FramePadding = backup_frame_padding;
+
+        PopID();
+        EndGroup();
+    }
+    else
+    {
+        if (InputText(label, buf, IM_ARRAYSIZE(buf), flags))
+            value_changed = DataTypeApplyFromText(buf, data_type, p_data, format);
+    }
+    if (value_changed)
+        MarkItemEdited(g.LastItemData.ID);
+
+    return value_changed;
+}
+
+bool ImGui::InputScalarN(const char* label, ImGuiDataType data_type, void* p_data, int components, const void* p_step, const void* p_step_fast, const char* format, ImGuiInputTextFlags flags)
+{
+    ImGuiWindow* window = GetCurrentWindow();
+    if (window->SkipItems)
+        return false;
+
+    ImGuiContext& g = *GImGui;
+    bool value_changed = false;
+    BeginGroup();
+    PushID(label);
+    PushMultiItemsWidths(components, CalcItemWidth());
+    size_t type_size = GDataTypeInfo[data_type].Size;
+    for (int i = 0; i < components; i++)
+    {
+        PushID(i);
+        if (i > 0)
+            SameLine(0, g.Style.ItemInnerSpacing.x);
+        value_changed |= InputScalar("", data_type, p_data, p_step, p_step_fast, format, flags);
+        PopID();
+        PopItemWidth();
+        p_data = (void*)((char*)p_data + type_size);
+    }
+    PopID();
+
+    const char* label_end = FindRenderedTextEnd(label);
+    if (label != label_end)
+    {
+        SameLine(0.0f, g.Style.ItemInnerSpacing.x);
+        TextEx(label, label_end);
+    }
+
+    EndGroup();
+    return value_changed;
+}
+
+bool ImGui::InputFloat(const char* label, float* v, float step, float step_fast, const char* format, ImGuiInputTextFlags flags)
+{
+    flags |= ImGuiInputTextFlags_CharsScientific;
+    return InputScalar(label, ImGuiDataType_Float, (void*)v, (void*)(step > 0.0f ? &step : NULL), (void*)(step_fast > 0.0f ? &step_fast : NULL), format, flags);
+}
+
+bool ImGui::InputFloat2(const char* label, float v[2], const char* format, ImGuiInputTextFlags flags)
+{
+    return InputScalarN(label, ImGuiDataType_Float, v, 2, NULL, NULL, format, flags);
+}
+
+bool ImGui::InputFloat3(const char* label, float v[3], const char* format, ImGuiInputTextFlags flags)
+{
+    return InputScalarN(label, ImGuiDataType_Float, v, 3, NULL, NULL, format, flags);
+}
+
+bool ImGui::InputFloat4(const char* label, float v[4], const char* format, ImGuiInputTextFlags flags)
+{
+    return InputScalarN(label, ImGuiDataType_Float, v, 4, NULL, NULL, format, flags);
+}
+
+bool ImGui::InputInt(const char* label, int* v, int step, int step_fast, ImGuiInputTextFlags flags)
+{
+    // Hexadecimal input provided as a convenience but the flag name is awkward. Typically you'd use InputText() to parse your own data, if you want to handle prefixes.
+    const char* format = (flags & ImGuiInputTextFlags_CharsHexadecimal) ? "%08X" : "%d";
+    return InputScalar(label, ImGuiDataType_S32, (void*)v, (void*)(step > 0 ? &step : NULL), (void*)(step_fast > 0 ? &step_fast : NULL), format, flags);
+}
+
+bool ImGui::InputInt2(const char* label, int v[2], ImGuiInputTextFlags flags)
+{
+    return InputScalarN(label, ImGuiDataType_S32, v, 2, NULL, NULL, "%d", flags);
+}
+
+bool ImGui::InputInt3(const char* label, int v[3], ImGuiInputTextFlags flags)
+{
+    return InputScalarN(label, ImGuiDataType_S32, v, 3, NULL, NULL, "%d", flags);
+}
+
+bool ImGui::InputInt4(const char* label, int v[4], ImGuiInputTextFlags flags)
+{
+    return InputScalarN(label, ImGuiDataType_S32, v, 4, NULL, NULL, "%d", flags);
+}
+
+bool ImGui::InputDouble(const char* label, double* v, double step, double step_fast, const char* format, ImGuiInputTextFlags flags)
+{
+    flags |= ImGuiInputTextFlags_CharsScientific;
+    return InputScalar(label, ImGuiDataType_Double, (void*)v, (void*)(step > 0.0 ? &step : NULL), (void*)(step_fast > 0.0 ? &step_fast : NULL), format, flags);
+}
+
+//-------------------------------------------------------------------------
+// [SECTION] Widgets: InputText, InputTextMultiline, InputTextWithHint
+//-------------------------------------------------------------------------
+// - InputText()
+// - InputTextWithHint()
+// - InputTextMultiline()
+// - InputTextGetCharInfo() [Internal]
+// - InputTextReindexLines() [Internal]
+// - InputTextReindexLinesRange() [Internal]
+// - InputTextEx() [Internal]
+// - DebugNodeInputTextState() [Internal]
+//-------------------------------------------------------------------------
+
+bool ImGui::InputText(const char* label, char* buf, size_t buf_size, ImGuiInputTextFlags flags, ImGuiInputTextCallback callback, void* user_data)
+{
+    IM_ASSERT(!(flags & ImGuiInputTextFlags_Multiline)); // call InputTextMultiline()
+    return InputTextEx(label, NULL, buf, (int)buf_size, ImVec2(0, 0), flags, callback, user_data);
+}
+
+bool ImGui::InputTextMultiline(const char* label, char* buf, size_t buf_size, const ImVec2& size, ImGuiInputTextFlags flags, ImGuiInputTextCallback callback, void* user_data)
+{
+    return InputTextEx(label, NULL, buf, (int)buf_size, size, flags | ImGuiInputTextFlags_Multiline, callback, user_data);
+}
+
+bool ImGui::InputTextWithHint(const char* label, const char* hint, char* buf, size_t buf_size, ImGuiInputTextFlags flags, ImGuiInputTextCallback callback, void* user_data)
+{
+    IM_ASSERT(!(flags & ImGuiInputTextFlags_Multiline)); // call InputTextMultiline()
+    return InputTextEx(label, hint, buf, (int)buf_size, ImVec2(0, 0), flags, callback, user_data);
+}
+
+static int InputTextCalcTextLenAndLineCount(const char* text_begin, const char** out_text_end)
+{
+    int line_count = 0;
+    const char* s = text_begin;
+    while (char c = *s++) // We are only matching for \n so we can ignore UTF-8 decoding
+        if (c == '\n')
+            line_count++;
+    s--;
+    if (s[0] != '\n' && s[0] != '\r')
+        line_count++;
+    *out_text_end = s;
+    return line_count;
+}
+
+static ImVec2 InputTextCalcTextSizeW(const ImWchar* text_begin, const ImWchar* text_end, const ImWchar** remaining, ImVec2* out_offset, bool stop_on_new_line)
+{
+    ImGuiContext& g = *GImGui;
+    ImFont* font = g.Font;
+    const float line_height = g.FontSize;
+    const float scale = line_height / font->FontSize;
+
+    ImVec2 text_size = ImVec2(0, 0);
+    float line_width = 0.0f;
+
+    const ImWchar* s = text_begin;
+    while (s < text_end)
+    {
+        unsigned int c = (unsigned int)(*s++);
+        if (c == '\n')
+        {
+            text_size.x = ImMax(text_size.x, line_width);
+            text_size.y += line_height;
+            line_width = 0.0f;
+            if (stop_on_new_line)
+                break;
+            continue;
+        }
+        if (c == '\r')
+            continue;
+
+        const float char_width = font->GetCharAdvance((ImWchar)c) * scale;
+        line_width += char_width;
+    }
+
+    if (text_size.x < line_width)
+        text_size.x = line_width;
+
+    if (out_offset)
+        *out_offset = ImVec2(line_width, text_size.y + line_height);  // offset allow for the possibility of sitting after a trailing \n
+
+    if (line_width > 0 || text_size.y == 0.0f)                        // whereas size.y will ignore the trailing \n
+        text_size.y += line_height;
+
+    if (remaining)
+        *remaining = s;
+
+    return text_size;
+}
+
+// Wrapper for stb_textedit.h to edit text (our wrapper is for: statically sized buffer, single-line, wchar characters. InputText converts between UTF-8 and wchar)
+namespace ImStb
+{
+
+static int     STB_TEXTEDIT_STRINGLEN(const ImGuiInputTextState* obj)                             { return obj->CurLenW; }
+static ImWchar STB_TEXTEDIT_GETCHAR(const ImGuiInputTextState* obj, int idx)                      { return obj->TextW[idx]; }
+static float   STB_TEXTEDIT_GETWIDTH(ImGuiInputTextState* obj, int line_start_idx, int char_idx)  { ImWchar c = obj->TextW[line_start_idx + char_idx]; if (c == '\n') return STB_TEXTEDIT_GETWIDTH_NEWLINE; ImGuiContext& g = *GImGui; return g.Font->GetCharAdvance(c) * (g.FontSize / g.Font->FontSize); }
+static int     STB_TEXTEDIT_KEYTOTEXT(int key)                                                    { return key >= 0x200000 ? 0 : key; }
+static ImWchar STB_TEXTEDIT_NEWLINE = '\n';
+static void    STB_TEXTEDIT_LAYOUTROW(StbTexteditRow* r, ImGuiInputTextState* obj, int line_start_idx)
+{
+    const ImWchar* text = obj->TextW.Data;
+    const ImWchar* text_remaining = NULL;
+    const ImVec2 size = InputTextCalcTextSizeW(text + line_start_idx, text + obj->CurLenW, &text_remaining, NULL, true);
+    r->x0 = 0.0f;
+    r->x1 = size.x;
+    r->baseline_y_delta = size.y;
+    r->ymin = 0.0f;
+    r->ymax = size.y;
+    r->num_chars = (int)(text_remaining - (text + line_start_idx));
+}
+
+// When ImGuiInputTextFlags_Password is set, we don't want actions such as CTRL+Arrow to leak the fact that underlying data are blanks or separators.
+static bool is_separator(unsigned int c)                                        { return ImCharIsBlankW(c) || c==',' || c==';' || c=='(' || c==')' || c=='{' || c=='}' || c=='[' || c==']' || c=='|' || c=='\n' || c=='\r'; }
+static int  is_word_boundary_from_right(ImGuiInputTextState* obj, int idx)      { if (obj->Flags & ImGuiInputTextFlags_Password) return 0; return idx > 0 ? (is_separator(obj->TextW[idx - 1]) && !is_separator(obj->TextW[idx]) ) : 1; }
+static int  is_word_boundary_from_left(ImGuiInputTextState* obj, int idx)       { if (obj->Flags & ImGuiInputTextFlags_Password) return 0; return idx > 0 ? (!is_separator(obj->TextW[idx - 1]) && is_separator(obj->TextW[idx])) : 1; }
+static int  STB_TEXTEDIT_MOVEWORDLEFT_IMPL(ImGuiInputTextState* obj, int idx)   { idx--; while (idx >= 0 && !is_word_boundary_from_right(obj, idx)) idx--; return idx < 0 ? 0 : idx; }
+static int  STB_TEXTEDIT_MOVEWORDRIGHT_MAC(ImGuiInputTextState* obj, int idx)   { idx++; int len = obj->CurLenW; while (idx < len && !is_word_boundary_from_left(obj, idx)) idx++; return idx > len ? len : idx; }
+#define STB_TEXTEDIT_MOVEWORDLEFT   STB_TEXTEDIT_MOVEWORDLEFT_IMPL    // They need to be #define for stb_textedit.h
+#ifdef __APPLE__    // FIXME: Move setting to IO structure
+#define STB_TEXTEDIT_MOVEWORDRIGHT  STB_TEXTEDIT_MOVEWORDRIGHT_MAC
+#else
+static int  STB_TEXTEDIT_MOVEWORDRIGHT_WIN(ImGuiInputTextState* obj, int idx)   { idx++; int len = obj->CurLenW; while (idx < len && !is_word_boundary_from_right(obj, idx)) idx++; return idx > len ? len : idx; }
+#define STB_TEXTEDIT_MOVEWORDRIGHT  STB_TEXTEDIT_MOVEWORDRIGHT_WIN
+#endif
+
+static void STB_TEXTEDIT_DELETECHARS(ImGuiInputTextState* obj, int pos, int n)
+{
+    ImWchar* dst = obj->TextW.Data + pos;
+
+    // We maintain our buffer length in both UTF-8 and wchar formats
+    obj->Edited = true;
+    obj->CurLenA -= ImTextCountUtf8BytesFromStr(dst, dst + n);
+    obj->CurLenW -= n;
+
+    // Offset remaining text (FIXME-OPT: Use memmove)
+    const ImWchar* src = obj->TextW.Data + pos + n;
+    while (ImWchar c = *src++)
+        *dst++ = c;
+    *dst = '\0';
+}
+
+static bool STB_TEXTEDIT_INSERTCHARS(ImGuiInputTextState* obj, int pos, const ImWchar* new_text, int new_text_len)
+{
+    const bool is_resizable = (obj->Flags & ImGuiInputTextFlags_CallbackResize) != 0;
+    const int text_len = obj->CurLenW;
+    IM_ASSERT(pos <= text_len);
+
+    const int new_text_len_utf8 = ImTextCountUtf8BytesFromStr(new_text, new_text + new_text_len);
+    if (!is_resizable && (new_text_len_utf8 + obj->CurLenA + 1 > obj->BufCapacityA))
+        return false;
+
+    // Grow internal buffer if needed
+    if (new_text_len + text_len + 1 > obj->TextW.Size)
+    {
+        if (!is_resizable)
+            return false;
+        IM_ASSERT(text_len < obj->TextW.Size);
+        obj->TextW.resize(text_len + ImClamp(new_text_len * 4, 32, ImMax(256, new_text_len)) + 1);
+    }
+
+    ImWchar* text = obj->TextW.Data;
+    if (pos != text_len)
+        memmove(text + pos + new_text_len, text + pos, (size_t)(text_len - pos) * sizeof(ImWchar));
+    memcpy(text + pos, new_text, (size_t)new_text_len * sizeof(ImWchar));
+
+    obj->Edited = true;
+    obj->CurLenW += new_text_len;
+    obj->CurLenA += new_text_len_utf8;
+    obj->TextW[obj->CurLenW] = '\0';
+
+    return true;
+}
+
+// We don't use an enum so we can build even with conflicting symbols (if another user of stb_textedit.h leak their STB_TEXTEDIT_K_* symbols)
+#define STB_TEXTEDIT_K_LEFT         0x200000 // keyboard input to move cursor left
+#define STB_TEXTEDIT_K_RIGHT        0x200001 // keyboard input to move cursor right
+#define STB_TEXTEDIT_K_UP           0x200002 // keyboard input to move cursor up
+#define STB_TEXTEDIT_K_DOWN         0x200003 // keyboard input to move cursor down
+#define STB_TEXTEDIT_K_LINESTART    0x200004 // keyboard input to move cursor to start of line
+#define STB_TEXTEDIT_K_LINEEND      0x200005 // keyboard input to move cursor to end of line
+#define STB_TEXTEDIT_K_TEXTSTART    0x200006 // keyboard input to move cursor to start of text
+#define STB_TEXTEDIT_K_TEXTEND      0x200007 // keyboard input to move cursor to end of text
+#define STB_TEXTEDIT_K_DELETE       0x200008 // keyboard input to delete selection or character under cursor
+#define STB_TEXTEDIT_K_BACKSPACE    0x200009 // keyboard input to delete selection or character left of cursor
+#define STB_TEXTEDIT_K_UNDO         0x20000A // keyboard input to perform undo
+#define STB_TEXTEDIT_K_REDO         0x20000B // keyboard input to perform redo
+#define STB_TEXTEDIT_K_WORDLEFT     0x20000C // keyboard input to move cursor left one word
+#define STB_TEXTEDIT_K_WORDRIGHT    0x20000D // keyboard input to move cursor right one word
+#define STB_TEXTEDIT_K_PGUP         0x20000E // keyboard input to move cursor up a page
+#define STB_TEXTEDIT_K_PGDOWN       0x20000F // keyboard input to move cursor down a page
+#define STB_TEXTEDIT_K_SHIFT        0x400000
+
+#define STB_TEXTEDIT_IMPLEMENTATION
+#include "imstb_textedit.h"
+
+// stb_textedit internally allows for a single undo record to do addition and deletion, but somehow, calling
+// the stb_textedit_paste() function creates two separate records, so we perform it manually. (FIXME: Report to nothings/stb?)
+static void stb_textedit_replace(ImGuiInputTextState* str, STB_TexteditState* state, const STB_TEXTEDIT_CHARTYPE* text, int text_len)
+{
+    stb_text_makeundo_replace(str, state, 0, str->CurLenW, text_len);
+    ImStb::STB_TEXTEDIT_DELETECHARS(str, 0, str->CurLenW);
+    if (text_len <= 0)
+        return;
+    if (ImStb::STB_TEXTEDIT_INSERTCHARS(str, 0, text, text_len))
+    {
+        state->cursor = text_len;
+        state->has_preferred_x = 0;
+        return;
+    }
+    IM_ASSERT(0); // Failed to insert character, normally shouldn't happen because of how we currently use stb_textedit_replace()
+}
+
+} // namespace ImStb
+
+void ImGuiInputTextState::OnKeyPressed(int key)
+{
+    stb_textedit_key(this, &Stb, key);
+    CursorFollow = true;
+    CursorAnimReset();
+}
+
+ImGuiInputTextCallbackData::ImGuiInputTextCallbackData()
+{
+    memset(this, 0, sizeof(*this));
+}
+
+// Public API to manipulate UTF-8 text
+// We expose UTF-8 to the user (unlike the STB_TEXTEDIT_* functions which are manipulating wchar)
+// FIXME: The existence of this rarely exercised code path is a bit of a nuisance.
+void ImGuiInputTextCallbackData::DeleteChars(int pos, int bytes_count)
+{
+    IM_ASSERT(pos + bytes_count <= BufTextLen);
+    char* dst = Buf + pos;
+    const char* src = Buf + pos + bytes_count;
+    while (char c = *src++)
+        *dst++ = c;
+    *dst = '\0';
+
+    if (CursorPos >= pos + bytes_count)
+        CursorPos -= bytes_count;
+    else if (CursorPos >= pos)
+        CursorPos = pos;
+    SelectionStart = SelectionEnd = CursorPos;
+    BufDirty = true;
+    BufTextLen -= bytes_count;
+}
+
+void ImGuiInputTextCallbackData::InsertChars(int pos, const char* new_text, const char* new_text_end)
+{
+    const bool is_resizable = (Flags & ImGuiInputTextFlags_CallbackResize) != 0;
+    const int new_text_len = new_text_end ? (int)(new_text_end - new_text) : (int)strlen(new_text);
+    if (new_text_len + BufTextLen >= BufSize)
+    {
+        if (!is_resizable)
+            return;
+
+        // Contrary to STB_TEXTEDIT_INSERTCHARS() this is working in the UTF8 buffer, hence the mildly similar code (until we remove the U16 buffer altogether!)
+        ImGuiContext& g = *GImGui;
+        ImGuiInputTextState* edit_state = &g.InputTextState;
+        IM_ASSERT(edit_state->ID != 0 && g.ActiveId == edit_state->ID);
+        IM_ASSERT(Buf == edit_state->TextA.Data);
+        int new_buf_size = BufTextLen + ImClamp(new_text_len * 4, 32, ImMax(256, new_text_len)) + 1;
+        edit_state->TextA.reserve(new_buf_size + 1);
+        Buf = edit_state->TextA.Data;
+        BufSize = edit_state->BufCapacityA = new_buf_size;
+    }
+
+    if (BufTextLen != pos)
+        memmove(Buf + pos + new_text_len, Buf + pos, (size_t)(BufTextLen - pos));
+    memcpy(Buf + pos, new_text, (size_t)new_text_len * sizeof(char));
+    Buf[BufTextLen + new_text_len] = '\0';
+
+    if (CursorPos >= pos)
+        CursorPos += new_text_len;
+    SelectionStart = SelectionEnd = CursorPos;
+    BufDirty = true;
+    BufTextLen += new_text_len;
+}
+
+// Return false to discard a character.
+static bool InputTextFilterCharacter(unsigned int* p_char, ImGuiInputTextFlags flags, ImGuiInputTextCallback callback, void* user_data, ImGuiInputSource input_source)
+{
+    IM_ASSERT(input_source == ImGuiInputSource_Keyboard || input_source == ImGuiInputSource_Clipboard);
+    unsigned int c = *p_char;
+
+    // Filter non-printable (NB: isprint is unreliable! see #2467)
+    bool apply_named_filters = true;
+    if (c < 0x20)
+    {
+        bool pass = false;
+        pass |= (c == '\n' && (flags & ImGuiInputTextFlags_Multiline)); // Note that an Enter KEY will emit \r and be ignored (we poll for KEY in InputText() code)
+        pass |= (c == '\t' && (flags & ImGuiInputTextFlags_AllowTabInput));
+        if (!pass)
+            return false;
+        apply_named_filters = false; // Override named filters below so newline and tabs can still be inserted.
+    }
+
+    if (input_source != ImGuiInputSource_Clipboard)
+    {
+        // We ignore Ascii representation of delete (emitted from Backspace on OSX, see #2578, #2817)
+        if (c == 127)
+            return false;
+
+        // Filter private Unicode range. GLFW on OSX seems to send private characters for special keys like arrow keys (FIXME)
+        if (c >= 0xE000 && c <= 0xF8FF)
+            return false;
+    }
+
+    // Filter Unicode ranges we are not handling in this build
+    if (c > IM_UNICODE_CODEPOINT_MAX)
+        return false;
+
+    // Generic named filters
+    if (apply_named_filters && (flags & (ImGuiInputTextFlags_CharsDecimal | ImGuiInputTextFlags_CharsHexadecimal | ImGuiInputTextFlags_CharsUppercase | ImGuiInputTextFlags_CharsNoBlank | ImGuiInputTextFlags_CharsScientific)))
+    {
+        // The libc allows overriding locale, with e.g. 'setlocale(LC_NUMERIC, "de_DE.UTF-8");' which affect the output/input of printf/scanf to use e.g. ',' instead of '.'.
+        // The standard mandate that programs starts in the "C" locale where the decimal point is '.'.
+        // We don't really intend to provide widespread support for it, but out of empathy for people stuck with using odd API, we support the bare minimum aka overriding the decimal point.
+        // Change the default decimal_point with:
+        //   ImGui::GetCurrentContext()->PlatformLocaleDecimalPoint = *localeconv()->decimal_point;
+        // Users of non-default decimal point (in particular ',') may be affected by word-selection logic (is_word_boundary_from_right/is_word_boundary_from_left) functions.
+        ImGuiContext& g = *GImGui;
+        const unsigned c_decimal_point = (unsigned int)g.PlatformLocaleDecimalPoint;
+
+        // Allow 0-9 . - + * /
+        if (flags & ImGuiInputTextFlags_CharsDecimal)
+            if (!(c >= '0' && c <= '9') && (c != c_decimal_point) && (c != '-') && (c != '+') && (c != '*') && (c != '/'))
+                return false;
+
+        // Allow 0-9 . - + * / e E
+        if (flags & ImGuiInputTextFlags_CharsScientific)
+            if (!(c >= '0' && c <= '9') && (c != c_decimal_point) && (c != '-') && (c != '+') && (c != '*') && (c != '/') && (c != 'e') && (c != 'E'))
+                return false;
+
+        // Allow 0-9 a-F A-F
+        if (flags & ImGuiInputTextFlags_CharsHexadecimal)
+            if (!(c >= '0' && c <= '9') && !(c >= 'a' && c <= 'f') && !(c >= 'A' && c <= 'F'))
+                return false;
+
+        // Turn a-z into A-Z
+        if (flags & ImGuiInputTextFlags_CharsUppercase)
+            if (c >= 'a' && c <= 'z')
+                *p_char = (c += (unsigned int)('A' - 'a'));
+
+        if (flags & ImGuiInputTextFlags_CharsNoBlank)
+            if (ImCharIsBlankW(c))
+                return false;
+    }
+
+    // Custom callback filter
+    if (flags & ImGuiInputTextFlags_CallbackCharFilter)
+    {
+        ImGuiInputTextCallbackData callback_data;
+        memset(&callback_data, 0, sizeof(ImGuiInputTextCallbackData));
+        callback_data.EventFlag = ImGuiInputTextFlags_CallbackCharFilter;
+        callback_data.EventChar = (ImWchar)c;
+        callback_data.Flags = flags;
+        callback_data.UserData = user_data;
+        if (callback(&callback_data) != 0)
+            return false;
+        *p_char = callback_data.EventChar;
+        if (!callback_data.EventChar)
+            return false;
+    }
+
+    return true;
+}
+
+// Find the shortest single replacement we can make to get the new text from the old text.
+// Important: needs to be run before TextW is rewritten with the new characters because calling STB_TEXTEDIT_GETCHAR() at the end.
+// FIXME: Ideally we should transition toward (1) making InsertChars()/DeleteChars() update undo-stack (2) discourage (and keep reconcile) or obsolete (and remove reconcile) accessing buffer directly.
+static void InputTextReconcileUndoStateAfterUserCallback(ImGuiInputTextState* state, const char* new_buf_a, int new_length_a)
+{
+    ImGuiContext& g = *GImGui;
+    const ImWchar* old_buf = state->TextW.Data;
+    const int old_length = state->CurLenW;
+    const int new_length = ImTextCountCharsFromUtf8(new_buf_a, new_buf_a + new_length_a);
+    g.TempBuffer.reserve_discard((new_length + 1) * sizeof(ImWchar));
+    ImWchar* new_buf = (ImWchar*)(void*)g.TempBuffer.Data;
+    ImTextStrFromUtf8(new_buf, new_length + 1, new_buf_a, new_buf_a + new_length_a);
+
+    const int shorter_length = ImMin(old_length, new_length);
+    int first_diff;
+    for (first_diff = 0; first_diff < shorter_length; first_diff++)
+        if (old_buf[first_diff] != new_buf[first_diff])
+            break;
+    if (first_diff == old_length && first_diff == new_length)
+        return;
+
+    int old_last_diff = old_length - 1;
+    int new_last_diff = new_length - 1;
+    for (; old_last_diff >= first_diff && new_last_diff >= first_diff; old_last_diff--, new_last_diff--)
+        if (old_buf[old_last_diff] != new_buf[new_last_diff])
+            break;
+
+    const int insert_len = new_last_diff - first_diff + 1;
+    const int delete_len = old_last_diff - first_diff + 1;
+    if (insert_len > 0 || delete_len > 0)
+        if (STB_TEXTEDIT_CHARTYPE* p = stb_text_createundo(&state->Stb.undostate, first_diff, delete_len, insert_len))
+            for (int i = 0; i < delete_len; i++)
+                p[i] = ImStb::STB_TEXTEDIT_GETCHAR(state, first_diff + i);
+}
+
+// Edit a string of text
+// - buf_size account for the zero-terminator, so a buf_size of 6 can hold "Hello" but not "Hello!".
+//   This is so we can easily call InputText() on static arrays using ARRAYSIZE() and to match
+//   Note that in std::string world, capacity() would omit 1 byte used by the zero-terminator.
+// - When active, hold on a privately held copy of the text (and apply back to 'buf'). So changing 'buf' while the InputText is active has no effect.
+// - If you want to use ImGui::InputText() with std::string, see misc/cpp/imgui_stdlib.h
+// (FIXME: Rather confusing and messy function, among the worse part of our codebase, expecting to rewrite a V2 at some point.. Partly because we are
+//  doing UTF8 > U16 > UTF8 conversions on the go to easily interface with stb_textedit. Ideally should stay in UTF-8 all the time. See https://github.com/nothings/stb/issues/188)
+bool ImGui::InputTextEx(const char* label, const char* hint, char* buf, int buf_size, const ImVec2& size_arg, ImGuiInputTextFlags flags, ImGuiInputTextCallback callback, void* callback_user_data)
+{
+    ImGuiWindow* window = GetCurrentWindow();
+    if (window->SkipItems)
+        return false;
+
+    IM_ASSERT(buf != NULL && buf_size >= 0);
+    IM_ASSERT(!((flags & ImGuiInputTextFlags_CallbackHistory) && (flags & ImGuiInputTextFlags_Multiline)));        // Can't use both together (they both use up/down keys)
+    IM_ASSERT(!((flags & ImGuiInputTextFlags_CallbackCompletion) && (flags & ImGuiInputTextFlags_AllowTabInput))); // Can't use both together (they both use tab key)
+
+    ImGuiContext& g = *GImGui;
+    ImGuiIO& io = g.IO;
+    const ImGuiStyle& style = g.Style;
+
+    const bool RENDER_SELECTION_WHEN_INACTIVE = false;
+    const bool is_multiline = (flags & ImGuiInputTextFlags_Multiline) != 0;
+    const bool is_readonly = (flags & ImGuiInputTextFlags_ReadOnly) != 0;
+    const bool is_password = (flags & ImGuiInputTextFlags_Password) != 0;
+    const bool is_undoable = (flags & ImGuiInputTextFlags_NoUndoRedo) == 0;
+    const bool is_resizable = (flags & ImGuiInputTextFlags_CallbackResize) != 0;
+    if (is_resizable)
+        IM_ASSERT(callback != NULL); // Must provide a callback if you set the ImGuiInputTextFlags_CallbackResize flag!
+
+    if (is_multiline) // Open group before calling GetID() because groups tracks id created within their scope (including the scrollbar)
+        BeginGroup();
+    const ImGuiID id = window->GetID(label);
+    const ImVec2 label_size = CalcTextSize(label, NULL, true);
+    const ImVec2 frame_size = CalcItemSize(size_arg, CalcItemWidth(), (is_multiline ? g.FontSize * 8.0f : label_size.y) + style.FramePadding.y * 2.0f); // Arbitrary default of 8 lines high for multi-line
+    const ImVec2 total_size = ImVec2(frame_size.x + (label_size.x > 0.0f ? style.ItemInnerSpacing.x + label_size.x : 0.0f), frame_size.y);
+
+    const ImRect frame_bb(window->DC.CursorPos, window->DC.CursorPos + frame_size);
+    const ImRect total_bb(frame_bb.Min, frame_bb.Min + total_size);
+
+    ImGuiWindow* draw_window = window;
+    ImVec2 inner_size = frame_size;
+    ImGuiItemStatusFlags item_status_flags = 0;
+    ImGuiLastItemData item_data_backup;
+    if (is_multiline)
+    {
+        ImVec2 backup_pos = window->DC.CursorPos;
+        ItemSize(total_bb, style.FramePadding.y);
+        if (!ItemAdd(total_bb, id, &frame_bb, ImGuiItemFlags_Inputable))
+        {
+            EndGroup();
+            return false;
+        }
+        item_status_flags = g.LastItemData.StatusFlags;
+        item_data_backup = g.LastItemData;
+        window->DC.CursorPos = backup_pos;
+
+        // We reproduce the contents of BeginChildFrame() in order to provide 'label' so our window internal data are easier to read/debug.
+        // FIXME-NAV: Pressing NavActivate will trigger general child activation right before triggering our own below. Harmless but bizarre.
+        PushStyleColor(ImGuiCol_ChildBg, style.Colors[ImGuiCol_FrameBg]);
+        PushStyleVar(ImGuiStyleVar_ChildRounding, style.FrameRounding);
+        PushStyleVar(ImGuiStyleVar_ChildBorderSize, style.FrameBorderSize);
+        PushStyleVar(ImGuiStyleVar_WindowPadding, ImVec2(0, 0)); // Ensure no clip rect so mouse hover can reach FramePadding edges
+        bool child_visible = BeginChildEx(label, id, frame_bb.GetSize(), true, ImGuiWindowFlags_NoMove);
+        PopStyleVar(3);
+        PopStyleColor();
+        if (!child_visible)
+        {
+            EndChild();
+            EndGroup();
+            return false;
+        }
+        draw_window = g.CurrentWindow; // Child window
+        draw_window->DC.NavLayersActiveMaskNext |= (1 << draw_window->DC.NavLayerCurrent); // This is to ensure that EndChild() will display a navigation highlight so we can "enter" into it.
+        draw_window->DC.CursorPos += style.FramePadding;
+        inner_size.x -= draw_window->ScrollbarSizes.x;
+    }
+    else
+    {
+        // Support for internal ImGuiInputTextFlags_MergedItem flag, which could be redesigned as an ItemFlags if needed (with test performed in ItemAdd)
+        ItemSize(total_bb, style.FramePadding.y);
+        if (!(flags & ImGuiInputTextFlags_MergedItem))
+            if (!ItemAdd(total_bb, id, &frame_bb, ImGuiItemFlags_Inputable))
+                return false;
+        item_status_flags = g.LastItemData.StatusFlags;
+    }
+    const bool hovered = ItemHoverable(frame_bb, id);
+    if (hovered)
+        g.MouseCursor = ImGuiMouseCursor_TextInput;
+
+    // We are only allowed to access the state if we are already the active widget.
+    ImGuiInputTextState* state = GetInputTextState(id);
+
+    const bool input_requested_by_tabbing = (item_status_flags & ImGuiItemStatusFlags_FocusedByTabbing) != 0;
+    const bool input_requested_by_nav = (g.ActiveId != id) && ((g.NavActivateInputId == id) || (g.NavActivateId == id && g.NavInputSource == ImGuiInputSource_Keyboard));
+
+    const bool user_clicked = hovered && io.MouseClicked[0];
+    const bool user_scroll_finish = is_multiline && state != NULL && g.ActiveId == 0 && g.ActiveIdPreviousFrame == GetWindowScrollbarID(draw_window, ImGuiAxis_Y);
+    const bool user_scroll_active = is_multiline && state != NULL && g.ActiveId == GetWindowScrollbarID(draw_window, ImGuiAxis_Y);
+    bool clear_active_id = false;
+    bool select_all = false;
+
+    float scroll_y = is_multiline ? draw_window->Scroll.y : FLT_MAX;
+
+    const bool init_changed_specs = (state != NULL && state->Stb.single_line != !is_multiline);
+    const bool init_make_active = (user_clicked || user_scroll_finish || input_requested_by_nav || input_requested_by_tabbing);
+    const bool init_state = (init_make_active || user_scroll_active);
+    if ((init_state && g.ActiveId != id) || init_changed_specs)
+    {
+        // Access state even if we don't own it yet.
+        state = &g.InputTextState;
+        state->CursorAnimReset();
+
+        // Take a copy of the initial buffer value (both in original UTF-8 format and converted to wchar)
+        // From the moment we focused we are ignoring the content of 'buf' (unless we are in read-only mode)
+        const int buf_len = (int)strlen(buf);
+        state->InitialTextA.resize(buf_len + 1);    // UTF-8. we use +1 to make sure that .Data is always pointing to at least an empty string.
+        memcpy(state->InitialTextA.Data, buf, buf_len + 1);
+
+        // Preserve cursor position and undo/redo stack if we come back to same widget
+        // FIXME: Since we reworked this on 2022/06, may want to differenciate recycle_cursor vs recycle_undostate?
+        bool recycle_state = (state->ID == id && !init_changed_specs);
+        if (recycle_state && (state->CurLenA != buf_len || (state->TextAIsValid && strncmp(state->TextA.Data, buf, buf_len) != 0)))
+            recycle_state = false;
+
+        // Start edition
+        const char* buf_end = NULL;
+        state->ID = id;
+        state->TextW.resize(buf_size + 1);          // wchar count <= UTF-8 count. we use +1 to make sure that .Data is always pointing to at least an empty string.
+        state->TextA.resize(0);
+        state->TextAIsValid = false;                // TextA is not valid yet (we will display buf until then)
+        state->CurLenW = ImTextStrFromUtf8(state->TextW.Data, buf_size, buf, NULL, &buf_end);
+        state->CurLenA = (int)(buf_end - buf);      // We can't get the result from ImStrncpy() above because it is not UTF-8 aware. Here we'll cut off malformed UTF-8.
+
+        if (recycle_state)
+        {
+            // Recycle existing cursor/selection/undo stack but clamp position
+            // Note a single mouse click will override the cursor/position immediately by calling stb_textedit_click handler.
+            state->CursorClamp();
+        }
+        else
+        {
+            state->ScrollX = 0.0f;
+            stb_textedit_initialize_state(&state->Stb, !is_multiline);
+        }
+
+        if (!is_multiline)
+        {
+            if (flags & ImGuiInputTextFlags_AutoSelectAll)
+                select_all = true;
+            if (input_requested_by_nav && (!recycle_state || !(g.NavActivateFlags & ImGuiActivateFlags_TryToPreserveState)))
+                select_all = true;
+            if (input_requested_by_tabbing || (user_clicked && io.KeyCtrl))
+                select_all = true;
+        }
+
+        if (flags & ImGuiInputTextFlags_AlwaysOverwrite)
+            state->Stb.insert_mode = 1; // stb field name is indeed incorrect (see #2863)
+    }
+
+    if (g.ActiveId != id && init_make_active)
+    {
+        IM_ASSERT(state && state->ID == id);
+        SetActiveID(id, window);
+        SetFocusID(id, window);
+        FocusWindow(window);
+
+        // Declare our inputs
+        IM_ASSERT(ImGuiNavInput_COUNT < 32);
+        g.ActiveIdUsingNavDirMask |= (1 << ImGuiDir_Left) | (1 << ImGuiDir_Right);
+        if (is_multiline || (flags & ImGuiInputTextFlags_CallbackHistory))
+            g.ActiveIdUsingNavDirMask |= (1 << ImGuiDir_Up) | (1 << ImGuiDir_Down);
+        g.ActiveIdUsingNavInputMask |= (1 << ImGuiNavInput_Cancel);
+        SetActiveIdUsingKey(ImGuiKey_Home);
+        SetActiveIdUsingKey(ImGuiKey_End);
+        if (is_multiline)
+        {
+            SetActiveIdUsingKey(ImGuiKey_PageUp);
+            SetActiveIdUsingKey(ImGuiKey_PageDown);
+        }
+        if (flags & (ImGuiInputTextFlags_CallbackCompletion | ImGuiInputTextFlags_AllowTabInput)) // Disable keyboard tabbing out as we will use the \t character.
+        {
+            SetActiveIdUsingKey(ImGuiKey_Tab);
+        }
+    }
+
+    // We have an edge case if ActiveId was set through another widget (e.g. widget being swapped), clear id immediately (don't wait until the end of the function)
+    if (g.ActiveId == id && state == NULL)
+        ClearActiveID();
+
+    // Release focus when we click outside
+    if (g.ActiveId == id && io.MouseClicked[0] && !init_state && !init_make_active) //-V560
+        clear_active_id = true;
+
+    // Lock the decision of whether we are going to take the path displaying the cursor or selection
+    const bool render_cursor = (g.ActiveId == id) || (state && user_scroll_active);
+    bool render_selection = state && (state->HasSelection() || select_all) && (RENDER_SELECTION_WHEN_INACTIVE || render_cursor);
+    bool value_changed = false;
+    bool enter_pressed = false;
+
+    // When read-only we always use the live data passed to the function
+    // FIXME-OPT: Because our selection/cursor code currently needs the wide text we need to convert it when active, which is not ideal :(
+    if (is_readonly && state != NULL && (render_cursor || render_selection))
+    {
+        const char* buf_end = NULL;
+        state->TextW.resize(buf_size + 1);
+        state->CurLenW = ImTextStrFromUtf8(state->TextW.Data, state->TextW.Size, buf, NULL, &buf_end);
+        state->CurLenA = (int)(buf_end - buf);
+        state->CursorClamp();
+        render_selection &= state->HasSelection();
+    }
+
+    // Select the buffer to render.
+    const bool buf_display_from_state = (render_cursor || render_selection || g.ActiveId == id) && !is_readonly && state && state->TextAIsValid;
+    const bool is_displaying_hint = (hint != NULL && (buf_display_from_state ? state->TextA.Data : buf)[0] == 0);
+
+    // Password pushes a temporary font with only a fallback glyph
+    if (is_password && !is_displaying_hint)
+    {
+        const ImFontGlyph* glyph = g.Font->FindGlyph('*');
+        ImFont* password_font = &g.InputTextPasswordFont;
+        password_font->FontSize = g.Font->FontSize;
+        password_font->Scale = g.Font->Scale;
+        password_font->Ascent = g.Font->Ascent;
+        password_font->Descent = g.Font->Descent;
+        password_font->ContainerAtlas = g.Font->ContainerAtlas;
+        password_font->FallbackGlyph = glyph;
+        password_font->FallbackAdvanceX = glyph->AdvanceX;
+        IM_ASSERT(password_font->Glyphs.empty() && password_font->IndexAdvanceX.empty() && password_font->IndexLookup.empty());
+        PushFont(password_font);
+    }
+
+    // Process mouse inputs and character inputs
+    int backup_current_text_length = 0;
+    if (g.ActiveId == id)
+    {
+        IM_ASSERT(state != NULL);
+        backup_current_text_length = state->CurLenA;
+        state->Edited = false;
+        state->BufCapacityA = buf_size;
+        state->Flags = flags;
+
+        // Although we are active we don't prevent mouse from hovering other elements unless we are interacting right now with the widget.
+        // Down the line we should have a cleaner library-wide concept of Selected vs Active.
+        g.ActiveIdAllowOverlap = !io.MouseDown[0];
+        g.WantTextInputNextFrame = 1;
+
+        // Edit in progress
+        const float mouse_x = (io.MousePos.x - frame_bb.Min.x - style.FramePadding.x) + state->ScrollX;
+        const float mouse_y = (is_multiline ? (io.MousePos.y - draw_window->DC.CursorPos.y) : (g.FontSize * 0.5f));
+
+        const bool is_osx = io.ConfigMacOSXBehaviors;
+        if (select_all)
+        {
+            state->SelectAll();
+            state->SelectedAllMouseLock = true;
+        }
+        else if (hovered && io.MouseClickedCount[0] >= 2 && !io.KeyShift)
+        {
+            stb_textedit_click(state, &state->Stb, mouse_x, mouse_y);
+            const int multiclick_count = (io.MouseClickedCount[0] - 2);
+            if ((multiclick_count % 2) == 0)
+            {
+                // Double-click: Select word
+                // We always use the "Mac" word advance for double-click select vs CTRL+Right which use the platform dependent variant:
+                // FIXME: There are likely many ways to improve this behavior, but there's no "right" behavior (depends on use-case, software, OS)
+                const bool is_bol = (state->Stb.cursor == 0) || ImStb::STB_TEXTEDIT_GETCHAR(state, state->Stb.cursor - 1) == '\n';
+                if (STB_TEXT_HAS_SELECTION(&state->Stb) || !is_bol)
+                    state->OnKeyPressed(STB_TEXTEDIT_K_WORDLEFT);
+                //state->OnKeyPressed(STB_TEXTEDIT_K_WORDRIGHT | STB_TEXTEDIT_K_SHIFT);
+                if (!STB_TEXT_HAS_SELECTION(&state->Stb))
+                    ImStb::stb_textedit_prep_selection_at_cursor(&state->Stb);
+                state->Stb.cursor = ImStb::STB_TEXTEDIT_MOVEWORDRIGHT_MAC(state, state->Stb.cursor);
+                state->Stb.select_end = state->Stb.cursor;
+                ImStb::stb_textedit_clamp(state, &state->Stb);
+            }
+            else
+            {
+                // Triple-click: Select line
+                const bool is_eol = ImStb::STB_TEXTEDIT_GETCHAR(state, state->Stb.cursor) == '\n';
+                state->OnKeyPressed(STB_TEXTEDIT_K_LINESTART);
+                state->OnKeyPressed(STB_TEXTEDIT_K_LINEEND | STB_TEXTEDIT_K_SHIFT);
+                state->OnKeyPressed(STB_TEXTEDIT_K_RIGHT | STB_TEXTEDIT_K_SHIFT);
+                if (!is_eol && is_multiline)
+                {
+                    ImSwap(state->Stb.select_start, state->Stb.select_end);
+                    state->Stb.cursor = state->Stb.select_end;
+                }
+                state->CursorFollow = false;
+            }
+            state->CursorAnimReset();
+        }
+        else if (io.MouseClicked[0] && !state->SelectedAllMouseLock)
+        {
+            // FIXME: unselect on late click could be done release?
+            if (hovered)
+            {
+                stb_textedit_click(state, &state->Stb, mouse_x, mouse_y);
+                state->CursorAnimReset();
+            }
+        }
+        else if (io.MouseDown[0] && !state->SelectedAllMouseLock && (io.MouseDelta.x != 0.0f || io.MouseDelta.y != 0.0f))
+        {
+            stb_textedit_drag(state, &state->Stb, mouse_x, mouse_y);
+            state->CursorAnimReset();
+            state->CursorFollow = true;
+        }
+        if (state->SelectedAllMouseLock && !io.MouseDown[0])
+            state->SelectedAllMouseLock = false;
+
+        // We except backends to emit a Tab key but some also emit a Tab character which we ignore (#2467, #1336)
+        // (For Tab and Enter: Win32/SFML/Allegro are sending both keys and chars, GLFW and SDL are only sending keys. For Space they all send all threes)
+        const bool ignore_char_inputs = (io.KeyCtrl && !io.KeyAlt) || (is_osx && io.KeySuper);
+        if ((flags & ImGuiInputTextFlags_AllowTabInput) && IsKeyPressed(ImGuiKey_Tab) && !ignore_char_inputs && !io.KeyShift && !is_readonly)
+        {
+            unsigned int c = '\t'; // Insert TAB
+            if (InputTextFilterCharacter(&c, flags, callback, callback_user_data, ImGuiInputSource_Keyboard))
+                state->OnKeyPressed((int)c);
+        }
+
+        // Process regular text input (before we check for Return because using some IME will effectively send a Return?)
+        // We ignore CTRL inputs, but need to allow ALT+CTRL as some keyboards (e.g. German) use AltGR (which _is_ Alt+Ctrl) to input certain characters.
+        if (io.InputQueueCharacters.Size > 0)
+        {
+            if (!ignore_char_inputs && !is_readonly && !input_requested_by_nav)
+                for (int n = 0; n < io.InputQueueCharacters.Size; n++)
+                {
+                    // Insert character if they pass filtering
+                    unsigned int c = (unsigned int)io.InputQueueCharacters[n];
+                    if (c == '\t') // Skip Tab, see above.
+                        continue;
+                    if (InputTextFilterCharacter(&c, flags, callback, callback_user_data, ImGuiInputSource_Keyboard))
+                        state->OnKeyPressed((int)c);
+                }
+
+            // Consume characters
+            io.InputQueueCharacters.resize(0);
+        }
+    }
+
+    // Process other shortcuts/key-presses
+    bool cancel_edit = false;
+    if (g.ActiveId == id && !g.ActiveIdIsJustActivated && !clear_active_id)
+    {
+        IM_ASSERT(state != NULL);
+
+        const int row_count_per_page = ImMax((int)((inner_size.y - style.FramePadding.y) / g.FontSize), 1);
+        state->Stb.row_count_per_page = row_count_per_page;
+
+        const int k_mask = (io.KeyShift ? STB_TEXTEDIT_K_SHIFT : 0);
+        const bool is_osx = io.ConfigMacOSXBehaviors;
+        const bool is_osx_shift_shortcut = is_osx && (io.KeyMods == (ImGuiModFlags_Super | ImGuiModFlags_Shift));
+        const bool is_wordmove_key_down = is_osx ? io.KeyAlt : io.KeyCtrl;                     // OS X style: Text editing cursor movement using Alt instead of Ctrl
+        const bool is_startend_key_down = is_osx && io.KeySuper && !io.KeyCtrl && !io.KeyAlt;  // OS X style: Line/Text Start and End using Cmd+Arrows instead of Home/End
+        const bool is_ctrl_key_only = (io.KeyMods == ImGuiModFlags_Ctrl);
+        const bool is_shift_key_only = (io.KeyMods == ImGuiModFlags_Shift);
+        const bool is_shortcut_key = g.IO.ConfigMacOSXBehaviors ? (io.KeyMods == ImGuiModFlags_Super) : (io.KeyMods == ImGuiModFlags_Ctrl);
+
+        const bool is_cut   = ((is_shortcut_key && IsKeyPressed(ImGuiKey_X)) || (is_shift_key_only && IsKeyPressed(ImGuiKey_Delete))) && !is_readonly && !is_password && (!is_multiline || state->HasSelection());
+        const bool is_copy  = ((is_shortcut_key && IsKeyPressed(ImGuiKey_C)) || (is_ctrl_key_only  && IsKeyPressed(ImGuiKey_Insert))) && !is_password && (!is_multiline || state->HasSelection());
+        const bool is_paste = ((is_shortcut_key && IsKeyPressed(ImGuiKey_V)) || (is_shift_key_only && IsKeyPressed(ImGuiKey_Insert))) && !is_readonly;
+        const bool is_undo  = ((is_shortcut_key && IsKeyPressed(ImGuiKey_Z)) && !is_readonly && is_undoable);
+        const bool is_redo  = ((is_shortcut_key && IsKeyPressed(ImGuiKey_Y)) || (is_osx_shift_shortcut && IsKeyPressed(ImGuiKey_Z))) && !is_readonly && is_undoable;
+
+        // We allow validate/cancel with Nav source (gamepad) to makes it easier to undo an accidental NavInput press with no keyboard wired, but otherwise it isn't very useful.
+        const bool is_validate_enter = IsKeyPressed(ImGuiKey_Enter) || IsKeyPressed(ImGuiKey_KeypadEnter);
+        const bool is_validate_nav = (IsNavInputTest(ImGuiNavInput_Activate, ImGuiNavReadMode_Pressed) && !IsKeyPressed(ImGuiKey_Space)) || IsNavInputTest(ImGuiNavInput_Input, ImGuiNavReadMode_Pressed);
+        const bool is_cancel   = IsKeyPressed(ImGuiKey_Escape) || IsNavInputTest(ImGuiNavInput_Cancel, ImGuiNavReadMode_Pressed);
+
+        if (IsKeyPressed(ImGuiKey_LeftArrow))                        { state->OnKeyPressed((is_startend_key_down ? STB_TEXTEDIT_K_LINESTART : is_wordmove_key_down ? STB_TEXTEDIT_K_WORDLEFT : STB_TEXTEDIT_K_LEFT) | k_mask); }
+        else if (IsKeyPressed(ImGuiKey_RightArrow))                  { state->OnKeyPressed((is_startend_key_down ? STB_TEXTEDIT_K_LINEEND : is_wordmove_key_down ? STB_TEXTEDIT_K_WORDRIGHT : STB_TEXTEDIT_K_RIGHT) | k_mask); }
+        else if (IsKeyPressed(ImGuiKey_UpArrow) && is_multiline)     { if (io.KeyCtrl) SetScrollY(draw_window, ImMax(draw_window->Scroll.y - g.FontSize, 0.0f)); else state->OnKeyPressed((is_startend_key_down ? STB_TEXTEDIT_K_TEXTSTART : STB_TEXTEDIT_K_UP) | k_mask); }
+        else if (IsKeyPressed(ImGuiKey_DownArrow) && is_multiline)   { if (io.KeyCtrl) SetScrollY(draw_window, ImMin(draw_window->Scroll.y + g.FontSize, GetScrollMaxY())); else state->OnKeyPressed((is_startend_key_down ? STB_TEXTEDIT_K_TEXTEND : STB_TEXTEDIT_K_DOWN) | k_mask); }
+        else if (IsKeyPressed(ImGuiKey_PageUp) && is_multiline)      { state->OnKeyPressed(STB_TEXTEDIT_K_PGUP | k_mask); scroll_y -= row_count_per_page * g.FontSize; }
+        else if (IsKeyPressed(ImGuiKey_PageDown) && is_multiline)    { state->OnKeyPressed(STB_TEXTEDIT_K_PGDOWN | k_mask); scroll_y += row_count_per_page * g.FontSize; }
+        else if (IsKeyPressed(ImGuiKey_Home))                        { state->OnKeyPressed(io.KeyCtrl ? STB_TEXTEDIT_K_TEXTSTART | k_mask : STB_TEXTEDIT_K_LINESTART | k_mask); }
+        else if (IsKeyPressed(ImGuiKey_End))                         { state->OnKeyPressed(io.KeyCtrl ? STB_TEXTEDIT_K_TEXTEND | k_mask : STB_TEXTEDIT_K_LINEEND | k_mask); }
+        else if (IsKeyPressed(ImGuiKey_Delete) && !is_readonly && !is_cut) { state->OnKeyPressed(STB_TEXTEDIT_K_DELETE | k_mask); }
+        else if (IsKeyPressed(ImGuiKey_Backspace) && !is_readonly)
+        {
+            if (!state->HasSelection())
+            {
+                if (is_wordmove_key_down)
+                    state->OnKeyPressed(STB_TEXTEDIT_K_WORDLEFT | STB_TEXTEDIT_K_SHIFT);
+                else if (is_osx && io.KeySuper && !io.KeyAlt && !io.KeyCtrl)
+                    state->OnKeyPressed(STB_TEXTEDIT_K_LINESTART | STB_TEXTEDIT_K_SHIFT);
+            }
+            state->OnKeyPressed(STB_TEXTEDIT_K_BACKSPACE | k_mask);
+        }
+        else if (is_validate_enter)
+        {
+            bool ctrl_enter_for_new_line = (flags & ImGuiInputTextFlags_CtrlEnterForNewLine) != 0;
+            if (!is_multiline || (ctrl_enter_for_new_line && !io.KeyCtrl) || (!ctrl_enter_for_new_line && io.KeyCtrl))
+            {
+                enter_pressed = clear_active_id = true;
+            }
+            else if (!is_readonly)
+            {
+                unsigned int c = '\n'; // Insert new line
+                if (InputTextFilterCharacter(&c, flags, callback, callback_user_data, ImGuiInputSource_Keyboard))
+                    state->OnKeyPressed((int)c);
+            }
+        }
+        else if (is_validate_nav)
+        {
+            IM_ASSERT(!is_validate_enter);
+            enter_pressed = clear_active_id = true;
+        }
+        else if (is_cancel)
+        {
+            clear_active_id = cancel_edit = true;
+        }
+        else if (is_undo || is_redo)
+        {
+            state->OnKeyPressed(is_undo ? STB_TEXTEDIT_K_UNDO : STB_TEXTEDIT_K_REDO);
+            state->ClearSelection();
+        }
+        else if (is_shortcut_key && IsKeyPressed(ImGuiKey_A))
+        {
+            state->SelectAll();
+            state->CursorFollow = true;
+        }
+        else if (is_cut || is_copy)
+        {
+            // Cut, Copy
+            if (io.SetClipboardTextFn)
+            {
+                const int ib = state->HasSelection() ? ImMin(state->Stb.select_start, state->Stb.select_end) : 0;
+                const int ie = state->HasSelection() ? ImMax(state->Stb.select_start, state->Stb.select_end) : state->CurLenW;
+                const int clipboard_data_len = ImTextCountUtf8BytesFromStr(state->TextW.Data + ib, state->TextW.Data + ie) + 1;
+                char* clipboard_data = (char*)IM_ALLOC(clipboard_data_len * sizeof(char));
+                ImTextStrToUtf8(clipboard_data, clipboard_data_len, state->TextW.Data + ib, state->TextW.Data + ie);
+                SetClipboardText(clipboard_data);
+                MemFree(clipboard_data);
+            }
+            if (is_cut)
+            {
+                if (!state->HasSelection())
+                    state->SelectAll();
+                state->CursorFollow = true;
+                stb_textedit_cut(state, &state->Stb);
+            }
+        }
+        else if (is_paste)
+        {
+            if (const char* clipboard = GetClipboardText())
+            {
+                // Filter pasted buffer
+                const int clipboard_len = (int)strlen(clipboard);
+                ImWchar* clipboard_filtered = (ImWchar*)IM_ALLOC((clipboard_len + 1) * sizeof(ImWchar));
+                int clipboard_filtered_len = 0;
+                for (const char* s = clipboard; *s; )
+                {
+                    unsigned int c;
+                    s += ImTextCharFromUtf8(&c, s, NULL);
+                    if (c == 0)
+                        break;
+                    if (!InputTextFilterCharacter(&c, flags, callback, callback_user_data, ImGuiInputSource_Clipboard))
+                        continue;
+                    clipboard_filtered[clipboard_filtered_len++] = (ImWchar)c;
+                }
+                clipboard_filtered[clipboard_filtered_len] = 0;
+                if (clipboard_filtered_len > 0) // If everything was filtered, ignore the pasting operation
+                {
+                    stb_textedit_paste(state, &state->Stb, clipboard_filtered, clipboard_filtered_len);
+                    state->CursorFollow = true;
+                }
+                MemFree(clipboard_filtered);
+            }
+        }
+
+        // Update render selection flag after events have been handled, so selection highlight can be displayed during the same frame.
+        render_selection |= state->HasSelection() && (RENDER_SELECTION_WHEN_INACTIVE || render_cursor);
+    }
+
+    // Process callbacks and apply result back to user's buffer.
+    const char* apply_new_text = NULL;
+    int apply_new_text_length = 0;
+    if (g.ActiveId == id)
+    {
+        IM_ASSERT(state != NULL);
+        if (cancel_edit)
+        {
+            // Restore initial value. Only return true if restoring to the initial value changes the current buffer contents.
+            if (!is_readonly && strcmp(buf, state->InitialTextA.Data) != 0)
+            {
+                // Push records into the undo stack so we can CTRL+Z the revert operation itself
+                apply_new_text = state->InitialTextA.Data;
+                apply_new_text_length = state->InitialTextA.Size - 1;
+                ImVector<ImWchar> w_text;
+                if (apply_new_text_length > 0)
+                {
+                    w_text.resize(ImTextCountCharsFromUtf8(apply_new_text, apply_new_text + apply_new_text_length) + 1);
+                    ImTextStrFromUtf8(w_text.Data, w_text.Size, apply_new_text, apply_new_text + apply_new_text_length);
+                }
+                stb_textedit_replace(state, &state->Stb, w_text.Data, (apply_new_text_length > 0) ? (w_text.Size - 1) : 0);
+            }
+        }
+
+        // Apply ASCII value
+        if (!is_readonly)
+        {
+            state->TextAIsValid = true;
+            state->TextA.resize(state->TextW.Size * 4 + 1);
+            ImTextStrToUtf8(state->TextA.Data, state->TextA.Size, state->TextW.Data, NULL);
+        }
+
+        // When using 'ImGuiInputTextFlags_EnterReturnsTrue' as a special case we reapply the live buffer back to the input buffer before clearing ActiveId, even though strictly speaking it wasn't modified on this frame.
+        // If we didn't do that, code like InputInt() with ImGuiInputTextFlags_EnterReturnsTrue would fail.
+        // This also allows the user to use InputText() with ImGuiInputTextFlags_EnterReturnsTrue without maintaining any user-side storage (please note that if you use this property along ImGuiInputTextFlags_CallbackResize you can end up with your temporary string object unnecessarily allocating once a frame, either store your string data, either if you don't then don't use ImGuiInputTextFlags_CallbackResize).
+        const bool apply_edit_back_to_user_buffer = !cancel_edit || (enter_pressed && (flags & ImGuiInputTextFlags_EnterReturnsTrue) != 0);
+        if (apply_edit_back_to_user_buffer)
+        {
+            // Apply new value immediately - copy modified buffer back
+            // Note that as soon as the input box is active, the in-widget value gets priority over any underlying modification of the input buffer
+            // FIXME: We actually always render 'buf' when calling DrawList->AddText, making the comment above incorrect.
+            // FIXME-OPT: CPU waste to do this every time the widget is active, should mark dirty state from the stb_textedit callbacks.
+
+            // User callback
+            if ((flags & (ImGuiInputTextFlags_CallbackCompletion | ImGuiInputTextFlags_CallbackHistory | ImGuiInputTextFlags_CallbackEdit | ImGuiInputTextFlags_CallbackAlways)) != 0)
+            {
+                IM_ASSERT(callback != NULL);
+
+                // The reason we specify the usage semantic (Completion/History) is that Completion needs to disable keyboard TABBING at the moment.
+                ImGuiInputTextFlags event_flag = 0;
+                ImGuiKey event_key = ImGuiKey_None;
+                if ((flags & ImGuiInputTextFlags_CallbackCompletion) != 0 && IsKeyPressed(ImGuiKey_Tab))
+                {
+                    event_flag = ImGuiInputTextFlags_CallbackCompletion;
+                    event_key = ImGuiKey_Tab;
+                }
+                else if ((flags & ImGuiInputTextFlags_CallbackHistory) != 0 && IsKeyPressed(ImGuiKey_UpArrow))
+                {
+                    event_flag = ImGuiInputTextFlags_CallbackHistory;
+                    event_key = ImGuiKey_UpArrow;
+                }
+                else if ((flags & ImGuiInputTextFlags_CallbackHistory) != 0 && IsKeyPressed(ImGuiKey_DownArrow))
+                {
+                    event_flag = ImGuiInputTextFlags_CallbackHistory;
+                    event_key = ImGuiKey_DownArrow;
+                }
+                else if ((flags & ImGuiInputTextFlags_CallbackEdit) && state->Edited)
+                {
+                    event_flag = ImGuiInputTextFlags_CallbackEdit;
+                }
+                else if (flags & ImGuiInputTextFlags_CallbackAlways)
+                {
+                    event_flag = ImGuiInputTextFlags_CallbackAlways;
+                }
+
+                if (event_flag)
+                {
+                    ImGuiInputTextCallbackData callback_data;
+                    memset(&callback_data, 0, sizeof(ImGuiInputTextCallbackData));
+                    callback_data.EventFlag = event_flag;
+                    callback_data.Flags = flags;
+                    callback_data.UserData = callback_user_data;
+
+                    char* callback_buf = is_readonly ? buf : state->TextA.Data;
+                    callback_data.EventKey = event_key;
+                    callback_data.Buf = callback_buf;
+                    callback_data.BufTextLen = state->CurLenA;
+                    callback_data.BufSize = state->BufCapacityA;
+                    callback_data.BufDirty = false;
+
+                    // We have to convert from wchar-positions to UTF-8-positions, which can be pretty slow (an incentive to ditch the ImWchar buffer, see https://github.com/nothings/stb/issues/188)
+                    ImWchar* text = state->TextW.Data;
+                    const int utf8_cursor_pos = callback_data.CursorPos = ImTextCountUtf8BytesFromStr(text, text + state->Stb.cursor);
+                    const int utf8_selection_start = callback_data.SelectionStart = ImTextCountUtf8BytesFromStr(text, text + state->Stb.select_start);
+                    const int utf8_selection_end = callback_data.SelectionEnd = ImTextCountUtf8BytesFromStr(text, text + state->Stb.select_end);
+
+                    // Call user code
+                    callback(&callback_data);
+
+                    // Read back what user may have modified
+                    callback_buf = is_readonly ? buf : state->TextA.Data; // Pointer may have been invalidated by a resize callback
+                    IM_ASSERT(callback_data.Buf == callback_buf);         // Invalid to modify those fields
+                    IM_ASSERT(callback_data.BufSize == state->BufCapacityA);
+                    IM_ASSERT(callback_data.Flags == flags);
+                    const bool buf_dirty = callback_data.BufDirty;
+                    if (callback_data.CursorPos != utf8_cursor_pos || buf_dirty)            { state->Stb.cursor = ImTextCountCharsFromUtf8(callback_data.Buf, callback_data.Buf + callback_data.CursorPos); state->CursorFollow = true; }
+                    if (callback_data.SelectionStart != utf8_selection_start || buf_dirty)  { state->Stb.select_start = (callback_data.SelectionStart == callback_data.CursorPos) ? state->Stb.cursor : ImTextCountCharsFromUtf8(callback_data.Buf, callback_data.Buf + callback_data.SelectionStart); }
+                    if (callback_data.SelectionEnd != utf8_selection_end || buf_dirty)      { state->Stb.select_end = (callback_data.SelectionEnd == callback_data.SelectionStart) ? state->Stb.select_start : ImTextCountCharsFromUtf8(callback_data.Buf, callback_data.Buf + callback_data.SelectionEnd); }
+                    if (buf_dirty)
+                    {
+                        IM_ASSERT(callback_data.BufTextLen == (int)strlen(callback_data.Buf)); // You need to maintain BufTextLen if you change the text!
+                        InputTextReconcileUndoStateAfterUserCallback(state, callback_data.Buf, callback_data.BufTextLen); // FIXME: Move the rest of this block inside function and rename to InputTextReconcileStateAfterUserCallback() ?
+                        if (callback_data.BufTextLen > backup_current_text_length && is_resizable)
+                            state->TextW.resize(state->TextW.Size + (callback_data.BufTextLen - backup_current_text_length)); // Worse case scenario resize
+                        state->CurLenW = ImTextStrFromUtf8(state->TextW.Data, state->TextW.Size, callback_data.Buf, NULL);
+                        state->CurLenA = callback_data.BufTextLen;  // Assume correct length and valid UTF-8 from user, saves us an extra strlen()
+                        state->CursorAnimReset();
+                    }
+                }
+            }
+
+            // Will copy result string if modified
+            if (!is_readonly && strcmp(state->TextA.Data, buf) != 0)
+            {
+                apply_new_text = state->TextA.Data;
+                apply_new_text_length = state->CurLenA;
+            }
+        }
+
+        // Clear temporary user storage
+        state->Flags = ImGuiInputTextFlags_None;
+    }
+
+    // Copy result to user buffer. This can currently only happen when (g.ActiveId == id)
+    if (apply_new_text != NULL)
+    {
+        // We cannot test for 'backup_current_text_length != apply_new_text_length' here because we have no guarantee that the size
+        // of our owned buffer matches the size of the string object held by the user, and by design we allow InputText() to be used
+        // without any storage on user's side.
+        IM_ASSERT(apply_new_text_length >= 0);
+        if (is_resizable)
+        {
+            ImGuiInputTextCallbackData callback_data;
+            callback_data.EventFlag = ImGuiInputTextFlags_CallbackResize;
+            callback_data.Flags = flags;
+            callback_data.Buf = buf;
+            callback_data.BufTextLen = apply_new_text_length;
+            callback_data.BufSize = ImMax(buf_size, apply_new_text_length + 1);
+            callback_data.UserData = callback_user_data;
+            callback(&callback_data);
+            buf = callback_data.Buf;
+            buf_size = callback_data.BufSize;
+            apply_new_text_length = ImMin(callback_data.BufTextLen, buf_size - 1);
+            IM_ASSERT(apply_new_text_length <= buf_size);
+        }
+        //IMGUI_DEBUG_PRINT("InputText(\"%s\"): apply_new_text length %d\n", label, apply_new_text_length);
+
+        // If the underlying buffer resize was denied or not carried to the next frame, apply_new_text_length+1 may be >= buf_size.
+        ImStrncpy(buf, apply_new_text, ImMin(apply_new_text_length + 1, buf_size));
+        value_changed = true;
+    }
+
+    // Release active ID at the end of the function (so e.g. pressing Return still does a final application of the value)
+    if (clear_active_id && g.ActiveId == id)
+        ClearActiveID();
+
+    // Render frame
+    if (!is_multiline)
+    {
+        RenderNavHighlight(frame_bb, id);
+        RenderFrame(frame_bb.Min, frame_bb.Max, GetColorU32(ImGuiCol_FrameBg), true, style.FrameRounding);
+    }
+
+    const ImVec4 clip_rect(frame_bb.Min.x, frame_bb.Min.y, frame_bb.Min.x + inner_size.x, frame_bb.Min.y + inner_size.y); // Not using frame_bb.Max because we have adjusted size
+    ImVec2 draw_pos = is_multiline ? draw_window->DC.CursorPos : frame_bb.Min + style.FramePadding;
+    ImVec2 text_size(0.0f, 0.0f);
+
+    // Set upper limit of single-line InputTextEx() at 2 million characters strings. The current pathological worst case is a long line
+    // without any carriage return, which would makes ImFont::RenderText() reserve too many vertices and probably crash. Avoid it altogether.
+    // Note that we only use this limit on single-line InputText(), so a pathologically large line on a InputTextMultiline() would still crash.
+    const int buf_display_max_length = 2 * 1024 * 1024;
+    const char* buf_display = buf_display_from_state ? state->TextA.Data : buf; //-V595
+    const char* buf_display_end = NULL; // We have specialized paths below for setting the length
+    if (is_displaying_hint)
+    {
+        buf_display = hint;
+        buf_display_end = hint + strlen(hint);
+    }
+
+    // Render text. We currently only render selection when the widget is active or while scrolling.
+    // FIXME: We could remove the '&& render_cursor' to keep rendering selection when inactive.
+    if (render_cursor || render_selection)
+    {
+        IM_ASSERT(state != NULL);
+        if (!is_displaying_hint)
+            buf_display_end = buf_display + state->CurLenA;
+
+        // Render text (with cursor and selection)
+        // This is going to be messy. We need to:
+        // - Display the text (this alone can be more easily clipped)
+        // - Handle scrolling, highlight selection, display cursor (those all requires some form of 1d->2d cursor position calculation)
+        // - Measure text height (for scrollbar)
+        // We are attempting to do most of that in **one main pass** to minimize the computation cost (non-negligible for large amount of text) + 2nd pass for selection rendering (we could merge them by an extra refactoring effort)
+        // FIXME: This should occur on buf_display but we'd need to maintain cursor/select_start/select_end for UTF-8.
+        const ImWchar* text_begin = state->TextW.Data;
+        ImVec2 cursor_offset, select_start_offset;
+
+        {
+            // Find lines numbers straddling 'cursor' (slot 0) and 'select_start' (slot 1) positions.
+            const ImWchar* searches_input_ptr[2] = { NULL, NULL };
+            int searches_result_line_no[2] = { -1000, -1000 };
+            int searches_remaining = 0;
+            if (render_cursor)
+            {
+                searches_input_ptr[0] = text_begin + state->Stb.cursor;
+                searches_result_line_no[0] = -1;
+                searches_remaining++;
+            }
+            if (render_selection)
+            {
+                searches_input_ptr[1] = text_begin + ImMin(state->Stb.select_start, state->Stb.select_end);
+                searches_result_line_no[1] = -1;
+                searches_remaining++;
+            }
+
+            // Iterate all lines to find our line numbers
+            // In multi-line mode, we never exit the loop until all lines are counted, so add one extra to the searches_remaining counter.
+            searches_remaining += is_multiline ? 1 : 0;
+            int line_count = 0;
+            //for (const ImWchar* s = text_begin; (s = (const ImWchar*)wcschr((const wchar_t*)s, (wchar_t)'\n')) != NULL; s++)  // FIXME-OPT: Could use this when wchar_t are 16-bit
+            for (const ImWchar* s = text_begin; *s != 0; s++)
+                if (*s == '\n')
+                {
+                    line_count++;
+                    if (searches_result_line_no[0] == -1 && s >= searches_input_ptr[0]) { searches_result_line_no[0] = line_count; if (--searches_remaining <= 0) break; }
+                    if (searches_result_line_no[1] == -1 && s >= searches_input_ptr[1]) { searches_result_line_no[1] = line_count; if (--searches_remaining <= 0) break; }
+                }
+            line_count++;
+            if (searches_result_line_no[0] == -1)
+                searches_result_line_no[0] = line_count;
+            if (searches_result_line_no[1] == -1)
+                searches_result_line_no[1] = line_count;
+
+            // Calculate 2d position by finding the beginning of the line and measuring distance
+            cursor_offset.x = InputTextCalcTextSizeW(ImStrbolW(searches_input_ptr[0], text_begin), searches_input_ptr[0]).x;
+            cursor_offset.y = searches_result_line_no[0] * g.FontSize;
+            if (searches_result_line_no[1] >= 0)
+            {
+                select_start_offset.x = InputTextCalcTextSizeW(ImStrbolW(searches_input_ptr[1], text_begin), searches_input_ptr[1]).x;
+                select_start_offset.y = searches_result_line_no[1] * g.FontSize;
+            }
+
+            // Store text height (note that we haven't calculated text width at all, see GitHub issues #383, #1224)
+            if (is_multiline)
+                text_size = ImVec2(inner_size.x, line_count * g.FontSize);
+        }
+
+        // Scroll
+        if (render_cursor && state->CursorFollow)
+        {
+            // Horizontal scroll in chunks of quarter width
+            if (!(flags & ImGuiInputTextFlags_NoHorizontalScroll))
+            {
+                const float scroll_increment_x = inner_size.x * 0.25f;
+                const float visible_width = inner_size.x - style.FramePadding.x;
+                if (cursor_offset.x < state->ScrollX)
+                    state->ScrollX = IM_FLOOR(ImMax(0.0f, cursor_offset.x - scroll_increment_x));
+                else if (cursor_offset.x - visible_width >= state->ScrollX)
+                    state->ScrollX = IM_FLOOR(cursor_offset.x - visible_width + scroll_increment_x);
+            }
+            else
+            {
+                state->ScrollX = 0.0f;
+            }
+
+            // Vertical scroll
+            if (is_multiline)
+            {
+                // Test if cursor is vertically visible
+                if (cursor_offset.y - g.FontSize < scroll_y)
+                    scroll_y = ImMax(0.0f, cursor_offset.y - g.FontSize);
+                else if (cursor_offset.y - (inner_size.y - style.FramePadding.y * 2.0f) >= scroll_y)
+                    scroll_y = cursor_offset.y - inner_size.y + style.FramePadding.y * 2.0f;
+                const float scroll_max_y = ImMax((text_size.y + style.FramePadding.y * 2.0f) - inner_size.y, 0.0f);
+                scroll_y = ImClamp(scroll_y, 0.0f, scroll_max_y);
+                draw_pos.y += (draw_window->Scroll.y - scroll_y);   // Manipulate cursor pos immediately avoid a frame of lag
+                draw_window->Scroll.y = scroll_y;
+            }
+
+            state->CursorFollow = false;
+        }
+
+        // Draw selection
+        const ImVec2 draw_scroll = ImVec2(state->ScrollX, 0.0f);
+        if (render_selection)
+        {
+            const ImWchar* text_selected_begin = text_begin + ImMin(state->Stb.select_start, state->Stb.select_end);
+            const ImWchar* text_selected_end = text_begin + ImMax(state->Stb.select_start, state->Stb.select_end);
+
+            ImU32 bg_color = GetColorU32(ImGuiCol_TextSelectedBg, render_cursor ? 1.0f : 0.6f); // FIXME: current code flow mandate that render_cursor is always true here, we are leaving the transparent one for tests.
+            float bg_offy_up = is_multiline ? 0.0f : -1.0f;    // FIXME: those offsets should be part of the style? they don't play so well with multi-line selection.
+            float bg_offy_dn = is_multiline ? 0.0f : 2.0f;
+            ImVec2 rect_pos = draw_pos + select_start_offset - draw_scroll;
+            for (const ImWchar* p = text_selected_begin; p < text_selected_end; )
+            {
+                if (rect_pos.y > clip_rect.w + g.FontSize)
+                    break;
+                if (rect_pos.y < clip_rect.y)
+                {
+                    //p = (const ImWchar*)wmemchr((const wchar_t*)p, '\n', text_selected_end - p);  // FIXME-OPT: Could use this when wchar_t are 16-bit
+                    //p = p ? p + 1 : text_selected_end;
+                    while (p < text_selected_end)
+                        if (*p++ == '\n')
+                            break;
+                }
+                else
+                {
+                    ImVec2 rect_size = InputTextCalcTextSizeW(p, text_selected_end, &p, NULL, true);
+                    if (rect_size.x <= 0.0f) rect_size.x = IM_FLOOR(g.Font->GetCharAdvance((ImWchar)' ') * 0.50f); // So we can see selected empty lines
+                    ImRect rect(rect_pos + ImVec2(0.0f, bg_offy_up - g.FontSize), rect_pos + ImVec2(rect_size.x, bg_offy_dn));
+                    rect.ClipWith(clip_rect);
+                    if (rect.Overlaps(clip_rect))
+                        draw_window->DrawList->AddRectFilled(rect.Min, rect.Max, bg_color);
+                }
+                rect_pos.x = draw_pos.x - draw_scroll.x;
+                rect_pos.y += g.FontSize;
+            }
+        }
+
+        // We test for 'buf_display_max_length' as a way to avoid some pathological cases (e.g. single-line 1 MB string) which would make ImDrawList crash.
+        if (is_multiline || (buf_display_end - buf_display) < buf_display_max_length)
+        {
+            ImU32 col = GetColorU32(is_displaying_hint ? ImGuiCol_TextDisabled : ImGuiCol_Text);
+            draw_window->DrawList->AddText(g.Font, g.FontSize, draw_pos - draw_scroll, col, buf_display, buf_display_end, 0.0f, is_multiline ? NULL : &clip_rect);
+        }
+
+        // Draw blinking cursor
+        if (render_cursor)
+        {
+            state->CursorAnim += io.DeltaTime;
+            bool cursor_is_visible = (!g.IO.ConfigInputTextCursorBlink) || (state->CursorAnim <= 0.0f) || ImFmod(state->CursorAnim, 1.20f) <= 0.80f;
+            ImVec2 cursor_screen_pos = ImFloor(draw_pos + cursor_offset - draw_scroll);
+            ImRect cursor_screen_rect(cursor_screen_pos.x, cursor_screen_pos.y - g.FontSize + 0.5f, cursor_screen_pos.x + 1.0f, cursor_screen_pos.y - 1.5f);
+            if (cursor_is_visible && cursor_screen_rect.Overlaps(clip_rect))
+                draw_window->DrawList->AddLine(cursor_screen_rect.Min, cursor_screen_rect.GetBL(), GetColorU32(ImGuiCol_Text));
+
+            // Notify OS of text input position for advanced IME (-1 x offset so that Windows IME can cover our cursor. Bit of an extra nicety.)
+            if (!is_readonly)
+            {
+                g.PlatformImeData.WantVisible = true;
+                g.PlatformImeData.InputPos = ImVec2(cursor_screen_pos.x - 1.0f, cursor_screen_pos.y - g.FontSize);
+                g.PlatformImeData.InputLineHeight = g.FontSize;
+            }
+        }
+    }
+    else
+    {
+        // Render text only (no selection, no cursor)
+        if (is_multiline)
+            text_size = ImVec2(inner_size.x, InputTextCalcTextLenAndLineCount(buf_display, &buf_display_end) * g.FontSize); // We don't need width
+        else if (!is_displaying_hint && g.ActiveId == id)
+            buf_display_end = buf_display + state->CurLenA;
+        else if (!is_displaying_hint)
+            buf_display_end = buf_display + strlen(buf_display);
+
+        if (is_multiline || (buf_display_end - buf_display) < buf_display_max_length)
+        {
+            ImU32 col = GetColorU32(is_displaying_hint ? ImGuiCol_TextDisabled : ImGuiCol_Text);
+            draw_window->DrawList->AddText(g.Font, g.FontSize, draw_pos, col, buf_display, buf_display_end, 0.0f, is_multiline ? NULL : &clip_rect);
+        }
+    }
+
+    if (is_password && !is_displaying_hint)
+        PopFont();
+
+    if (is_multiline)
+    {
+        // For focus requests to work on our multiline we need to ensure our child ItemAdd() call specifies the ImGuiItemFlags_Inputable (ref issue #4761)...
+        Dummy(ImVec2(text_size.x, text_size.y + style.FramePadding.y));
+        ImGuiItemFlags backup_item_flags = g.CurrentItemFlags;
+        g.CurrentItemFlags |= ImGuiItemFlags_Inputable | ImGuiItemFlags_NoTabStop;
+        EndChild();
+        item_data_backup.StatusFlags |= (g.LastItemData.StatusFlags & ImGuiItemStatusFlags_HoveredWindow);
+        g.CurrentItemFlags = backup_item_flags;
+
+        // ...and then we need to undo the group overriding last item data, which gets a bit messy as EndGroup() tries to forward scrollbar being active...
+        // FIXME: This quite messy/tricky, should attempt to get rid of the child window.
+        EndGroup();
+        if (g.LastItemData.ID == 0)
+        {
+            g.LastItemData.ID = id;
+            g.LastItemData.InFlags = item_data_backup.InFlags;
+            g.LastItemData.StatusFlags = item_data_backup.StatusFlags;
+        }
+    }
+
+    // Log as text
+    if (g.LogEnabled && (!is_password || is_displaying_hint))
+    {
+        LogSetNextTextDecoration("{", "}");
+        LogRenderedText(&draw_pos, buf_display, buf_display_end);
+    }
+
+    if (label_size.x > 0)
+        RenderText(ImVec2(frame_bb.Max.x + style.ItemInnerSpacing.x, frame_bb.Min.y + style.FramePadding.y), label);
+
+    if (value_changed && !(flags & ImGuiInputTextFlags_NoMarkEdited))
+        MarkItemEdited(id);
+
+    IMGUI_TEST_ENGINE_ITEM_INFO(id, label, g.LastItemData.StatusFlags);
+    if ((flags & ImGuiInputTextFlags_EnterReturnsTrue) != 0)
+        return enter_pressed;
+    else
+        return value_changed;
+}
+
+void ImGui::DebugNodeInputTextState(ImGuiInputTextState* state)
+{
+#ifndef IMGUI_DISABLE_DEBUG_TOOLS
+    ImGuiContext& g = *GImGui;
+    ImStb::STB_TexteditState* stb_state = &state->Stb;
+    ImStb::StbUndoState* undo_state = &stb_state->undostate;
+    Text("ID: 0x%08X, ActiveID: 0x%08X", state->ID, g.ActiveId);
+    Text("CurLenW: %d, CurLenA: %d, Cursor: %d, Selection: %d..%d", state->CurLenA, state->CurLenW, stb_state->cursor, stb_state->select_start, stb_state->select_end);
+    Text("undo_point: %d, redo_point: %d, undo_char_point: %d, redo_char_point: %d", undo_state->undo_point, undo_state->redo_point, undo_state->undo_char_point, undo_state->redo_char_point);
+    if (BeginChild("undopoints", ImVec2(0.0f, GetTextLineHeight() * 15), true)) // Visualize undo state
+    {
+        PushStyleVar(ImGuiStyleVar_ItemSpacing, ImVec2(0, 0));
+        for (int n = 0; n < STB_TEXTEDIT_UNDOSTATECOUNT; n++)
+        {
+            ImStb::StbUndoRecord* undo_rec = &undo_state->undo_rec[n];
+            const char undo_rec_type = (n < undo_state->undo_point) ? 'u' : (n >= undo_state->redo_point) ? 'r' : ' ';
+            if (undo_rec_type == ' ')
+                BeginDisabled();
+            char buf[64] = "";
+            if (undo_rec_type != ' ' && undo_rec->char_storage != -1)
+                ImTextStrToUtf8(buf, IM_ARRAYSIZE(buf), undo_state->undo_char + undo_rec->char_storage, undo_state->undo_char + undo_rec->char_storage + undo_rec->insert_length);
+            Text("%c [%02d] where %03d, insert %03d, delete %03d, char_storage %03d \"%s\"",
+                undo_rec_type, n, undo_rec->where, undo_rec->insert_length, undo_rec->delete_length, undo_rec->char_storage, buf);
+            if (undo_rec_type == ' ')
+                EndDisabled();
+        }
+        PopStyleVar();
+    }
+    EndChild();
+#else
+    IM_UNUSED(state);
+#endif
+}
+
+//-------------------------------------------------------------------------
+// [SECTION] Widgets: ColorEdit, ColorPicker, ColorButton, etc.
+//-------------------------------------------------------------------------
+// - ColorEdit3()
+// - ColorEdit4()
+// - ColorPicker3()
+// - RenderColorRectWithAlphaCheckerboard() [Internal]
+// - ColorPicker4()
+// - ColorButton()
+// - SetColorEditOptions()
+// - ColorTooltip() [Internal]
+// - ColorEditOptionsPopup() [Internal]
+// - ColorPickerOptionsPopup() [Internal]
+//-------------------------------------------------------------------------
+
+bool ImGui::ColorEdit3(const char* label, float col[3], ImGuiColorEditFlags flags)
+{
+    return ColorEdit4(label, col, flags | ImGuiColorEditFlags_NoAlpha);
+}
+
+// ColorEdit supports RGB and HSV inputs. In case of RGB input resulting color may have undefined hue and/or saturation.
+// Since widget displays both RGB and HSV values we must preserve hue and saturation to prevent these values resetting.
+static void ColorEditRestoreHS(const float* col, float* H, float* S, float* V)
+{
+    // This check is optional. Suppose we have two color widgets side by side, both widgets display different colors, but both colors have hue and/or saturation undefined.
+    // With color check: hue/saturation is preserved in one widget. Editing color in one widget would reset hue/saturation in another one.
+    // Without color check: common hue/saturation would be displayed in all widgets that have hue/saturation undefined.
+    // g.ColorEditLastColor is stored as ImU32 RGB value: this essentially gives us color equality check with reduced precision.
+    // Tiny external color changes would not be detected and this check would still pass. This is OK, since we only restore hue/saturation _only_ if they are undefined,
+    // therefore this change flipping hue/saturation from undefined to a very tiny value would still be represented in color picker.
+    ImGuiContext& g = *GImGui;
+    if (g.ColorEditLastColor != ImGui::ColorConvertFloat4ToU32(ImVec4(col[0], col[1], col[2], 0)))
+        return;
+
+    // When S == 0, H is undefined.
+    // When H == 1 it wraps around to 0.
+    if (*S == 0.0f || (*H == 0.0f && g.ColorEditLastHue == 1))
+        *H = g.ColorEditLastHue;
+
+    // When V == 0, S is undefined.
+    if (*V == 0.0f)
+        *S = g.ColorEditLastSat;
+}
+
+// Edit colors components (each component in 0.0f..1.0f range).
+// See enum ImGuiColorEditFlags_ for available options. e.g. Only access 3 floats if ImGuiColorEditFlags_NoAlpha flag is set.
+// With typical options: Left-click on color square to open color picker. Right-click to open option menu. CTRL-Click over input fields to edit them and TAB to go to next item.
+bool ImGui::ColorEdit4(const char* label, float col[4], ImGuiColorEditFlags flags)
+{
+    ImGuiWindow* window = GetCurrentWindow();
+    if (window->SkipItems)
+        return false;
+
+    ImGuiContext& g = *GImGui;
+    const ImGuiStyle& style = g.Style;
+    const float square_sz = GetFrameHeight();
+    const float w_full = CalcItemWidth();
+    const float w_button = (flags & ImGuiColorEditFlags_NoSmallPreview) ? 0.0f : (square_sz + style.ItemInnerSpacing.x);
+    const float w_inputs = w_full - w_button;
+    const char* label_display_end = FindRenderedTextEnd(label);
+    g.NextItemData.ClearFlags();
+
+    BeginGroup();
+    PushID(label);
+
+    // If we're not showing any slider there's no point in doing any HSV conversions
+    const ImGuiColorEditFlags flags_untouched = flags;
+    if (flags & ImGuiColorEditFlags_NoInputs)
+        flags = (flags & (~ImGuiColorEditFlags_DisplayMask_)) | ImGuiColorEditFlags_DisplayRGB | ImGuiColorEditFlags_NoOptions;
+
+    // Context menu: display and modify options (before defaults are applied)
+    if (!(flags & ImGuiColorEditFlags_NoOptions))
+        ColorEditOptionsPopup(col, flags);
+
+    // Read stored options
+    if (!(flags & ImGuiColorEditFlags_DisplayMask_))
+        flags |= (g.ColorEditOptions & ImGuiColorEditFlags_DisplayMask_);
+    if (!(flags & ImGuiColorEditFlags_DataTypeMask_))
+        flags |= (g.ColorEditOptions & ImGuiColorEditFlags_DataTypeMask_);
+    if (!(flags & ImGuiColorEditFlags_PickerMask_))
+        flags |= (g.ColorEditOptions & ImGuiColorEditFlags_PickerMask_);
+    if (!(flags & ImGuiColorEditFlags_InputMask_))
+        flags |= (g.ColorEditOptions & ImGuiColorEditFlags_InputMask_);
+    flags |= (g.ColorEditOptions & ~(ImGuiColorEditFlags_DisplayMask_ | ImGuiColorEditFlags_DataTypeMask_ | ImGuiColorEditFlags_PickerMask_ | ImGuiColorEditFlags_InputMask_));
+    IM_ASSERT(ImIsPowerOfTwo(flags & ImGuiColorEditFlags_DisplayMask_)); // Check that only 1 is selected
+    IM_ASSERT(ImIsPowerOfTwo(flags & ImGuiColorEditFlags_InputMask_));   // Check that only 1 is selected
+
+    const bool alpha = (flags & ImGuiColorEditFlags_NoAlpha) == 0;
+    const bool hdr = (flags & ImGuiColorEditFlags_HDR) != 0;
+    const int components = alpha ? 4 : 3;
+
+    // Convert to the formats we need
+    float f[4] = { col[0], col[1], col[2], alpha ? col[3] : 1.0f };
+    if ((flags & ImGuiColorEditFlags_InputHSV) && (flags & ImGuiColorEditFlags_DisplayRGB))
+        ColorConvertHSVtoRGB(f[0], f[1], f[2], f[0], f[1], f[2]);
+    else if ((flags & ImGuiColorEditFlags_InputRGB) && (flags & ImGuiColorEditFlags_DisplayHSV))
+    {
+        // Hue is lost when converting from greyscale rgb (saturation=0). Restore it.
+        ColorConvertRGBtoHSV(f[0], f[1], f[2], f[0], f[1], f[2]);
+        ColorEditRestoreHS(col, &f[0], &f[1], &f[2]);
+    }
+    int i[4] = { IM_F32_TO_INT8_UNBOUND(f[0]), IM_F32_TO_INT8_UNBOUND(f[1]), IM_F32_TO_INT8_UNBOUND(f[2]), IM_F32_TO_INT8_UNBOUND(f[3]) };
+
+    bool value_changed = false;
+    bool value_changed_as_float = false;
+
+    const ImVec2 pos = window->DC.CursorPos;
+    const float inputs_offset_x = (style.ColorButtonPosition == ImGuiDir_Left) ? w_button : 0.0f;
+    window->DC.CursorPos.x = pos.x + inputs_offset_x;
+
+    if ((flags & (ImGuiColorEditFlags_DisplayRGB | ImGuiColorEditFlags_DisplayHSV)) != 0 && (flags & ImGuiColorEditFlags_NoInputs) == 0)
+    {
+        // RGB/HSV 0..255 Sliders
+        const float w_item_one  = ImMax(1.0f, IM_FLOOR((w_inputs - (style.ItemInnerSpacing.x) * (components - 1)) / (float)components));
+        const float w_item_last = ImMax(1.0f, IM_FLOOR(w_inputs - (w_item_one + style.ItemInnerSpacing.x) * (components - 1)));
+
+        const bool hide_prefix = (w_item_one <= CalcTextSize((flags & ImGuiColorEditFlags_Float) ? "M:0.000" : "M:000").x);
+        static const char* ids[4] = { "##X", "##Y", "##Z", "##W" };
+        static const char* fmt_table_int[3][4] =
+        {
+            {   "%3d",   "%3d",   "%3d",   "%3d" }, // Short display
+            { "R:%3d", "G:%3d", "B:%3d", "A:%3d" }, // Long display for RGBA
+            { "H:%3d", "S:%3d", "V:%3d", "A:%3d" }  // Long display for HSVA
+        };
+        static const char* fmt_table_float[3][4] =
+        {
+            {   "%0.3f",   "%0.3f",   "%0.3f",   "%0.3f" }, // Short display
+            { "R:%0.3f", "G:%0.3f", "B:%0.3f", "A:%0.3f" }, // Long display for RGBA
+            { "H:%0.3f", "S:%0.3f", "V:%0.3f", "A:%0.3f" }  // Long display for HSVA
+        };
+        const int fmt_idx = hide_prefix ? 0 : (flags & ImGuiColorEditFlags_DisplayHSV) ? 2 : 1;
+
+        for (int n = 0; n < components; n++)
+        {
+            if (n > 0)
+                SameLine(0, style.ItemInnerSpacing.x);
+            SetNextItemWidth((n + 1 < components) ? w_item_one : w_item_last);
+
+            // FIXME: When ImGuiColorEditFlags_HDR flag is passed HS values snap in weird ways when SV values go below 0.
+            if (flags & ImGuiColorEditFlags_Float)
+            {
+                value_changed |= DragFloat(ids[n], &f[n], 1.0f / 255.0f, 0.0f, hdr ? 0.0f : 1.0f, fmt_table_float[fmt_idx][n]);
+                value_changed_as_float |= value_changed;
+            }
+            else
+            {
+                value_changed |= DragInt(ids[n], &i[n], 1.0f, 0, hdr ? 0 : 255, fmt_table_int[fmt_idx][n]);
+            }
+            if (!(flags & ImGuiColorEditFlags_NoOptions))
+                OpenPopupOnItemClick("context", ImGuiPopupFlags_MouseButtonRight);
+        }
+    }
+    else if ((flags & ImGuiColorEditFlags_DisplayHex) != 0 && (flags & ImGuiColorEditFlags_NoInputs) == 0)
+    {
+        // RGB Hexadecimal Input
+        char buf[64];
+        if (alpha)
+            ImFormatString(buf, IM_ARRAYSIZE(buf), "#%02X%02X%02X%02X", ImClamp(i[0], 0, 255), ImClamp(i[1], 0, 255), ImClamp(i[2], 0, 255), ImClamp(i[3], 0, 255));
+        else
+            ImFormatString(buf, IM_ARRAYSIZE(buf), "#%02X%02X%02X", ImClamp(i[0], 0, 255), ImClamp(i[1], 0, 255), ImClamp(i[2], 0, 255));
+        SetNextItemWidth(w_inputs);
+        if (InputText("##Text", buf, IM_ARRAYSIZE(buf), ImGuiInputTextFlags_CharsHexadecimal | ImGuiInputTextFlags_CharsUppercase))
+        {
+            value_changed = true;
+            char* p = buf;
+            while (*p == '#' || ImCharIsBlankA(*p))
+                p++;
+            i[0] = i[1] = i[2] = 0;
+            i[3] = 0xFF; // alpha default to 255 is not parsed by scanf (e.g. inputting #FFFFFF omitting alpha)
+            int r;
+            if (alpha)
+                r = sscanf(p, "%02X%02X%02X%02X", (unsigned int*)&i[0], (unsigned int*)&i[1], (unsigned int*)&i[2], (unsigned int*)&i[3]); // Treat at unsigned (%X is unsigned)
+            else
+                r = sscanf(p, "%02X%02X%02X", (unsigned int*)&i[0], (unsigned int*)&i[1], (unsigned int*)&i[2]);
+            IM_UNUSED(r); // Fixes C6031: Return value ignored: 'sscanf'.
+        }
+        if (!(flags & ImGuiColorEditFlags_NoOptions))
+            OpenPopupOnItemClick("context", ImGuiPopupFlags_MouseButtonRight);
+    }
+
+    ImGuiWindow* picker_active_window = NULL;
+    if (!(flags & ImGuiColorEditFlags_NoSmallPreview))
+    {
+        const float button_offset_x = ((flags & ImGuiColorEditFlags_NoInputs) || (style.ColorButtonPosition == ImGuiDir_Left)) ? 0.0f : w_inputs + style.ItemInnerSpacing.x;
+        window->DC.CursorPos = ImVec2(pos.x + button_offset_x, pos.y);
+
+        const ImVec4 col_v4(col[0], col[1], col[2], alpha ? col[3] : 1.0f);
+        if (ColorButton("##ColorButton", col_v4, flags))
+        {
+            if (!(flags & ImGuiColorEditFlags_NoPicker))
+            {
+                // Store current color and open a picker
+                g.ColorPickerRef = col_v4;
+                OpenPopup("picker");
+                SetNextWindowPos(g.LastItemData.Rect.GetBL() + ImVec2(0.0f, style.ItemSpacing.y));
+            }
+        }
+        if (!(flags & ImGuiColorEditFlags_NoOptions))
+            OpenPopupOnItemClick("context", ImGuiPopupFlags_MouseButtonRight);
+
+        if (BeginPopup("picker"))
+        {
+            picker_active_window = g.CurrentWindow;
+            if (label != label_display_end)
+            {
+                TextEx(label, label_display_end);
+                Spacing();
+            }
+            ImGuiColorEditFlags picker_flags_to_forward = ImGuiColorEditFlags_DataTypeMask_ | ImGuiColorEditFlags_PickerMask_ | ImGuiColorEditFlags_InputMask_ | ImGuiColorEditFlags_HDR | ImGuiColorEditFlags_NoAlpha | ImGuiColorEditFlags_AlphaBar;
+            ImGuiColorEditFlags picker_flags = (flags_untouched & picker_flags_to_forward) | ImGuiColorEditFlags_DisplayMask_ | ImGuiColorEditFlags_NoLabel | ImGuiColorEditFlags_AlphaPreviewHalf;
+            SetNextItemWidth(square_sz * 12.0f); // Use 256 + bar sizes?
+            value_changed |= ColorPicker4("##picker", col, picker_flags, &g.ColorPickerRef.x);
+            EndPopup();
+        }
+    }
+
+    if (label != label_display_end && !(flags & ImGuiColorEditFlags_NoLabel))
+    {
+        SameLine(0.0f, style.ItemInnerSpacing.x);
+        TextEx(label, label_display_end);
+    }
+
+    // Convert back
+    if (value_changed && picker_active_window == NULL)
+    {
+        if (!value_changed_as_float)
+            for (int n = 0; n < 4; n++)
+                f[n] = i[n] / 255.0f;
+        if ((flags & ImGuiColorEditFlags_DisplayHSV) && (flags & ImGuiColorEditFlags_InputRGB))
+        {
+            g.ColorEditLastHue = f[0];
+            g.ColorEditLastSat = f[1];
+            ColorConvertHSVtoRGB(f[0], f[1], f[2], f[0], f[1], f[2]);
+            g.ColorEditLastColor = ColorConvertFloat4ToU32(ImVec4(f[0], f[1], f[2], 0));
+        }
+        if ((flags & ImGuiColorEditFlags_DisplayRGB) && (flags & ImGuiColorEditFlags_InputHSV))
+            ColorConvertRGBtoHSV(f[0], f[1], f[2], f[0], f[1], f[2]);
+
+        col[0] = f[0];
+        col[1] = f[1];
+        col[2] = f[2];
+        if (alpha)
+            col[3] = f[3];
+    }
+
+    PopID();
+    EndGroup();
+
+    // Drag and Drop Target
+    // NB: The flag test is merely an optional micro-optimization, BeginDragDropTarget() does the same test.
+    if ((g.LastItemData.StatusFlags & ImGuiItemStatusFlags_HoveredRect) && !(flags & ImGuiColorEditFlags_NoDragDrop) && BeginDragDropTarget())
+    {
+        bool accepted_drag_drop = false;
+        if (const ImGuiPayload* payload = AcceptDragDropPayload(IMGUI_PAYLOAD_TYPE_COLOR_3F))
+        {
+            memcpy((float*)col, payload->Data, sizeof(float) * 3); // Preserve alpha if any //-V512
+            value_changed = accepted_drag_drop = true;
+        }
+        if (const ImGuiPayload* payload = AcceptDragDropPayload(IMGUI_PAYLOAD_TYPE_COLOR_4F))
+        {
+            memcpy((float*)col, payload->Data, sizeof(float) * components);
+            value_changed = accepted_drag_drop = true;
+        }
+
+        // Drag-drop payloads are always RGB
+        if (accepted_drag_drop && (flags & ImGuiColorEditFlags_InputHSV))
+            ColorConvertRGBtoHSV(col[0], col[1], col[2], col[0], col[1], col[2]);
+        EndDragDropTarget();
+    }
+
+    // When picker is being actively used, use its active id so IsItemActive() will function on ColorEdit4().
+    if (picker_active_window && g.ActiveId != 0 && g.ActiveIdWindow == picker_active_window)
+        g.LastItemData.ID = g.ActiveId;
+
+    if (value_changed)
+        MarkItemEdited(g.LastItemData.ID);
+
+    return value_changed;
+}
+
+bool ImGui::ColorPicker3(const char* label, float col[3], ImGuiColorEditFlags flags)
+{
+    float col4[4] = { col[0], col[1], col[2], 1.0f };
+    if (!ColorPicker4(label, col4, flags | ImGuiColorEditFlags_NoAlpha))
+        return false;
+    col[0] = col4[0]; col[1] = col4[1]; col[2] = col4[2];
+    return true;
+}
+
+// Helper for ColorPicker4()
+static void RenderArrowsForVerticalBar(ImDrawList* draw_list, ImVec2 pos, ImVec2 half_sz, float bar_w, float alpha)
+{
+    ImU32 alpha8 = IM_F32_TO_INT8_SAT(alpha);
+    ImGui::RenderArrowPointingAt(draw_list, ImVec2(pos.x + half_sz.x + 1,         pos.y), ImVec2(half_sz.x + 2, half_sz.y + 1), ImGuiDir_Right, IM_COL32(0,0,0,alpha8));
+    ImGui::RenderArrowPointingAt(draw_list, ImVec2(pos.x + half_sz.x,             pos.y), half_sz,                              ImGuiDir_Right, IM_COL32(255,255,255,alpha8));
+    ImGui::RenderArrowPointingAt(draw_list, ImVec2(pos.x + bar_w - half_sz.x - 1, pos.y), ImVec2(half_sz.x + 2, half_sz.y + 1), ImGuiDir_Left,  IM_COL32(0,0,0,alpha8));
+    ImGui::RenderArrowPointingAt(draw_list, ImVec2(pos.x + bar_w - half_sz.x,     pos.y), half_sz,                              ImGuiDir_Left,  IM_COL32(255,255,255,alpha8));
+}
+
+// Note: ColorPicker4() only accesses 3 floats if ImGuiColorEditFlags_NoAlpha flag is set.
+// (In C++ the 'float col[4]' notation for a function argument is equivalent to 'float* col', we only specify a size to facilitate understanding of the code.)
+// FIXME: we adjust the big color square height based on item width, which may cause a flickering feedback loop (if automatic height makes a vertical scrollbar appears, affecting automatic width..)
+// FIXME: this is trying to be aware of style.Alpha but not fully correct. Also, the color wheel will have overlapping glitches with (style.Alpha < 1.0)
+bool ImGui::ColorPicker4(const char* label, float col[4], ImGuiColorEditFlags flags, const float* ref_col)
+{
+    ImGuiContext& g = *GImGui;
+    ImGuiWindow* window = GetCurrentWindow();
+    if (window->SkipItems)
+        return false;
+
+    ImDrawList* draw_list = window->DrawList;
+    ImGuiStyle& style = g.Style;
+    ImGuiIO& io = g.IO;
+
+    const float width = CalcItemWidth();
+    g.NextItemData.ClearFlags();
+
+    PushID(label);
+    BeginGroup();
+
+    if (!(flags & ImGuiColorEditFlags_NoSidePreview))
+        flags |= ImGuiColorEditFlags_NoSmallPreview;
+
+    // Context menu: display and store options.
+    if (!(flags & ImGuiColorEditFlags_NoOptions))
+        ColorPickerOptionsPopup(col, flags);
+
+    // Read stored options
+    if (!(flags & ImGuiColorEditFlags_PickerMask_))
+        flags |= ((g.ColorEditOptions & ImGuiColorEditFlags_PickerMask_) ? g.ColorEditOptions : ImGuiColorEditFlags_DefaultOptions_) & ImGuiColorEditFlags_PickerMask_;
+    if (!(flags & ImGuiColorEditFlags_InputMask_))
+        flags |= ((g.ColorEditOptions & ImGuiColorEditFlags_InputMask_) ? g.ColorEditOptions : ImGuiColorEditFlags_DefaultOptions_) & ImGuiColorEditFlags_InputMask_;
+    IM_ASSERT(ImIsPowerOfTwo(flags & ImGuiColorEditFlags_PickerMask_)); // Check that only 1 is selected
+    IM_ASSERT(ImIsPowerOfTwo(flags & ImGuiColorEditFlags_InputMask_));  // Check that only 1 is selected
+    if (!(flags & ImGuiColorEditFlags_NoOptions))
+        flags |= (g.ColorEditOptions & ImGuiColorEditFlags_AlphaBar);
+
+    // Setup
+    int components = (flags & ImGuiColorEditFlags_NoAlpha) ? 3 : 4;
+    bool alpha_bar = (flags & ImGuiColorEditFlags_AlphaBar) && !(flags & ImGuiColorEditFlags_NoAlpha);
+    ImVec2 picker_pos = window->DC.CursorPos;
+    float square_sz = GetFrameHeight();
+    float bars_width = square_sz; // Arbitrary smallish width of Hue/Alpha picking bars
+    float sv_picker_size = ImMax(bars_width * 1, width - (alpha_bar ? 2 : 1) * (bars_width + style.ItemInnerSpacing.x)); // Saturation/Value picking box
+    float bar0_pos_x = picker_pos.x + sv_picker_size + style.ItemInnerSpacing.x;
+    float bar1_pos_x = bar0_pos_x + bars_width + style.ItemInnerSpacing.x;
+    float bars_triangles_half_sz = IM_FLOOR(bars_width * 0.20f);
+
+    float backup_initial_col[4];
+    memcpy(backup_initial_col, col, components * sizeof(float));
+
+    float wheel_thickness = sv_picker_size * 0.08f;
+    float wheel_r_outer = sv_picker_size * 0.50f;
+    float wheel_r_inner = wheel_r_outer - wheel_thickness;
+    ImVec2 wheel_center(picker_pos.x + (sv_picker_size + bars_width)*0.5f, picker_pos.y + sv_picker_size * 0.5f);
+
+    // Note: the triangle is displayed rotated with triangle_pa pointing to Hue, but most coordinates stays unrotated for logic.
+    float triangle_r = wheel_r_inner - (int)(sv_picker_size * 0.027f);
+    ImVec2 triangle_pa = ImVec2(triangle_r, 0.0f); // Hue point.
+    ImVec2 triangle_pb = ImVec2(triangle_r * -0.5f, triangle_r * -0.866025f); // Black point.
+    ImVec2 triangle_pc = ImVec2(triangle_r * -0.5f, triangle_r * +0.866025f); // White point.
+
+    float H = col[0], S = col[1], V = col[2];
+    float R = col[0], G = col[1], B = col[2];
+    if (flags & ImGuiColorEditFlags_InputRGB)
+    {
+        // Hue is lost when converting from greyscale rgb (saturation=0). Restore it.
+        ColorConvertRGBtoHSV(R, G, B, H, S, V);
+        ColorEditRestoreHS(col, &H, &S, &V);
+    }
+    else if (flags & ImGuiColorEditFlags_InputHSV)
+    {
+        ColorConvertHSVtoRGB(H, S, V, R, G, B);
+    }
+
+    bool value_changed = false, value_changed_h = false, value_changed_sv = false;
+
+    PushItemFlag(ImGuiItemFlags_NoNav, true);
+    if (flags & ImGuiColorEditFlags_PickerHueWheel)
+    {
+        // Hue wheel + SV triangle logic
+        InvisibleButton("hsv", ImVec2(sv_picker_size + style.ItemInnerSpacing.x + bars_width, sv_picker_size));
+        if (IsItemActive())
+        {
+            ImVec2 initial_off = g.IO.MouseClickedPos[0] - wheel_center;
+            ImVec2 current_off = g.IO.MousePos - wheel_center;
+            float initial_dist2 = ImLengthSqr(initial_off);
+            if (initial_dist2 >= (wheel_r_inner - 1) * (wheel_r_inner - 1) && initial_dist2 <= (wheel_r_outer + 1) * (wheel_r_outer + 1))
+            {
+                // Interactive with Hue wheel
+                H = ImAtan2(current_off.y, current_off.x) / IM_PI * 0.5f;
+                if (H < 0.0f)
+                    H += 1.0f;
+                value_changed = value_changed_h = true;
+            }
+            float cos_hue_angle = ImCos(-H * 2.0f * IM_PI);
+            float sin_hue_angle = ImSin(-H * 2.0f * IM_PI);
+            if (ImTriangleContainsPoint(triangle_pa, triangle_pb, triangle_pc, ImRotate(initial_off, cos_hue_angle, sin_hue_angle)))
+            {
+                // Interacting with SV triangle
+                ImVec2 current_off_unrotated = ImRotate(current_off, cos_hue_angle, sin_hue_angle);
+                if (!ImTriangleContainsPoint(triangle_pa, triangle_pb, triangle_pc, current_off_unrotated))
+                    current_off_unrotated = ImTriangleClosestPoint(triangle_pa, triangle_pb, triangle_pc, current_off_unrotated);
+                float uu, vv, ww;
+                ImTriangleBarycentricCoords(triangle_pa, triangle_pb, triangle_pc, current_off_unrotated, uu, vv, ww);
+                V = ImClamp(1.0f - vv, 0.0001f, 1.0f);
+                S = ImClamp(uu / V, 0.0001f, 1.0f);
+                value_changed = value_changed_sv = true;
+            }
+        }
+        if (!(flags & ImGuiColorEditFlags_NoOptions))
+            OpenPopupOnItemClick("context", ImGuiPopupFlags_MouseButtonRight);
+    }
+    else if (flags & ImGuiColorEditFlags_PickerHueBar)
+    {
+        // SV rectangle logic
+        InvisibleButton("sv", ImVec2(sv_picker_size, sv_picker_size));
+        if (IsItemActive())
+        {
+            S = ImSaturate((io.MousePos.x - picker_pos.x) / (sv_picker_size - 1));
+            V = 1.0f - ImSaturate((io.MousePos.y - picker_pos.y) / (sv_picker_size - 1));
+
+            // Greatly reduces hue jitter and reset to 0 when hue == 255 and color is rapidly modified using SV square.
+            if (g.ColorEditLastColor == ColorConvertFloat4ToU32(ImVec4(col[0], col[1], col[2], 0)))
+                H = g.ColorEditLastHue;
+            value_changed = value_changed_sv = true;
+        }
+        if (!(flags & ImGuiColorEditFlags_NoOptions))
+            OpenPopupOnItemClick("context", ImGuiPopupFlags_MouseButtonRight);
+
+        // Hue bar logic
+        SetCursorScreenPos(ImVec2(bar0_pos_x, picker_pos.y));
+        InvisibleButton("hue", ImVec2(bars_width, sv_picker_size));
+        if (IsItemActive())
+        {
+            H = ImSaturate((io.MousePos.y - picker_pos.y) / (sv_picker_size - 1));
+            value_changed = value_changed_h = true;
+        }
+    }
+
+    // Alpha bar logic
+    if (alpha_bar)
+    {
+        SetCursorScreenPos(ImVec2(bar1_pos_x, picker_pos.y));
+        InvisibleButton("alpha", ImVec2(bars_width, sv_picker_size));
+        if (IsItemActive())
+        {
+            col[3] = 1.0f - ImSaturate((io.MousePos.y - picker_pos.y) / (sv_picker_size - 1));
+            value_changed = true;
+        }
+    }
+    PopItemFlag(); // ImGuiItemFlags_NoNav
+
+    if (!(flags & ImGuiColorEditFlags_NoSidePreview))
+    {
+        SameLine(0, style.ItemInnerSpacing.x);
+        BeginGroup();
+    }
+
+    if (!(flags & ImGuiColorEditFlags_NoLabel))
+    {
+        const char* label_display_end = FindRenderedTextEnd(label);
+        if (label != label_display_end)
+        {
+            if ((flags & ImGuiColorEditFlags_NoSidePreview))
+                SameLine(0, style.ItemInnerSpacing.x);
+            TextEx(label, label_display_end);
+        }
+    }
+
+    if (!(flags & ImGuiColorEditFlags_NoSidePreview))
+    {
+        PushItemFlag(ImGuiItemFlags_NoNavDefaultFocus, true);
+        ImVec4 col_v4(col[0], col[1], col[2], (flags & ImGuiColorEditFlags_NoAlpha) ? 1.0f : col[3]);
+        if ((flags & ImGuiColorEditFlags_NoLabel))
+            Text("Current");
+
+        ImGuiColorEditFlags sub_flags_to_forward = ImGuiColorEditFlags_InputMask_ | ImGuiColorEditFlags_HDR | ImGuiColorEditFlags_AlphaPreview | ImGuiColorEditFlags_AlphaPreviewHalf | ImGuiColorEditFlags_NoTooltip;
+        ColorButton("##current", col_v4, (flags & sub_flags_to_forward), ImVec2(square_sz * 3, square_sz * 2));
+        if (ref_col != NULL)
+        {
+            Text("Original");
+            ImVec4 ref_col_v4(ref_col[0], ref_col[1], ref_col[2], (flags & ImGuiColorEditFlags_NoAlpha) ? 1.0f : ref_col[3]);
+            if (ColorButton("##original", ref_col_v4, (flags & sub_flags_to_forward), ImVec2(square_sz * 3, square_sz * 2)))
+            {
+                memcpy(col, ref_col, components * sizeof(float));
+                value_changed = true;
+            }
+        }
+        PopItemFlag();
+        EndGroup();
+    }
+
+    // Convert back color to RGB
+    if (value_changed_h || value_changed_sv)
+    {
+        if (flags & ImGuiColorEditFlags_InputRGB)
+        {
+            ColorConvertHSVtoRGB(H, S, V, col[0], col[1], col[2]);
+            g.ColorEditLastHue = H;
+            g.ColorEditLastSat = S;
+            g.ColorEditLastColor = ColorConvertFloat4ToU32(ImVec4(col[0], col[1], col[2], 0));
+        }
+        else if (flags & ImGuiColorEditFlags_InputHSV)
+        {
+            col[0] = H;
+            col[1] = S;
+            col[2] = V;
+        }
+    }
+
+    // R,G,B and H,S,V slider color editor
+    bool value_changed_fix_hue_wrap = false;
+    if ((flags & ImGuiColorEditFlags_NoInputs) == 0)
+    {
+        PushItemWidth((alpha_bar ? bar1_pos_x : bar0_pos_x) + bars_width - picker_pos.x);
+        ImGuiColorEditFlags sub_flags_to_forward = ImGuiColorEditFlags_DataTypeMask_ | ImGuiColorEditFlags_InputMask_ | ImGuiColorEditFlags_HDR | ImGuiColorEditFlags_NoAlpha | ImGuiColorEditFlags_NoOptions | ImGuiColorEditFlags_NoSmallPreview | ImGuiColorEditFlags_AlphaPreview | ImGuiColorEditFlags_AlphaPreviewHalf;
+        ImGuiColorEditFlags sub_flags = (flags & sub_flags_to_forward) | ImGuiColorEditFlags_NoPicker;
+        if (flags & ImGuiColorEditFlags_DisplayRGB || (flags & ImGuiColorEditFlags_DisplayMask_) == 0)
+            if (ColorEdit4("##rgb", col, sub_flags | ImGuiColorEditFlags_DisplayRGB))
+            {
+                // FIXME: Hackily differentiating using the DragInt (ActiveId != 0 && !ActiveIdAllowOverlap) vs. using the InputText or DropTarget.
+                // For the later we don't want to run the hue-wrap canceling code. If you are well versed in HSV picker please provide your input! (See #2050)
+                value_changed_fix_hue_wrap = (g.ActiveId != 0 && !g.ActiveIdAllowOverlap);
+                value_changed = true;
+            }
+        if (flags & ImGuiColorEditFlags_DisplayHSV || (flags & ImGuiColorEditFlags_DisplayMask_) == 0)
+            value_changed |= ColorEdit4("##hsv", col, sub_flags | ImGuiColorEditFlags_DisplayHSV);
+        if (flags & ImGuiColorEditFlags_DisplayHex || (flags & ImGuiColorEditFlags_DisplayMask_) == 0)
+            value_changed |= ColorEdit4("##hex", col, sub_flags | ImGuiColorEditFlags_DisplayHex);
+        PopItemWidth();
+    }
+
+    // Try to cancel hue wrap (after ColorEdit4 call), if any
+    if (value_changed_fix_hue_wrap && (flags & ImGuiColorEditFlags_InputRGB))
+    {
+        float new_H, new_S, new_V;
+        ColorConvertRGBtoHSV(col[0], col[1], col[2], new_H, new_S, new_V);
+        if (new_H <= 0 && H > 0)
+        {
+            if (new_V <= 0 && V != new_V)
+                ColorConvertHSVtoRGB(H, S, new_V <= 0 ? V * 0.5f : new_V, col[0], col[1], col[2]);
+            else if (new_S <= 0)
+                ColorConvertHSVtoRGB(H, new_S <= 0 ? S * 0.5f : new_S, new_V, col[0], col[1], col[2]);
+        }
+    }
+
+    if (value_changed)
+    {
+        if (flags & ImGuiColorEditFlags_InputRGB)
+        {
+            R = col[0];
+            G = col[1];
+            B = col[2];
+            ColorConvertRGBtoHSV(R, G, B, H, S, V);
+            ColorEditRestoreHS(col, &H, &S, &V);   // Fix local Hue as display below will use it immediately.
+        }
+        else if (flags & ImGuiColorEditFlags_InputHSV)
+        {
+            H = col[0];
+            S = col[1];
+            V = col[2];
+            ColorConvertHSVtoRGB(H, S, V, R, G, B);
+        }
+    }
+
+    const int style_alpha8 = IM_F32_TO_INT8_SAT(style.Alpha);
+    const ImU32 col_black = IM_COL32(0,0,0,style_alpha8);
+    const ImU32 col_white = IM_COL32(255,255,255,style_alpha8);
+    const ImU32 col_midgrey = IM_COL32(128,128,128,style_alpha8);
+    const ImU32 col_hues[6 + 1] = { IM_COL32(255,0,0,style_alpha8), IM_COL32(255,255,0,style_alpha8), IM_COL32(0,255,0,style_alpha8), IM_COL32(0,255,255,style_alpha8), IM_COL32(0,0,255,style_alpha8), IM_COL32(255,0,255,style_alpha8), IM_COL32(255,0,0,style_alpha8) };
+
+    ImVec4 hue_color_f(1, 1, 1, style.Alpha); ColorConvertHSVtoRGB(H, 1, 1, hue_color_f.x, hue_color_f.y, hue_color_f.z);
+    ImU32 hue_color32 = ColorConvertFloat4ToU32(hue_color_f);
+    ImU32 user_col32_striped_of_alpha = ColorConvertFloat4ToU32(ImVec4(R, G, B, style.Alpha)); // Important: this is still including the main rendering/style alpha!!
+
+    ImVec2 sv_cursor_pos;
+
+    if (flags & ImGuiColorEditFlags_PickerHueWheel)
+    {
+        // Render Hue Wheel
+        const float aeps = 0.5f / wheel_r_outer; // Half a pixel arc length in radians (2pi cancels out).
+        const int segment_per_arc = ImMax(4, (int)wheel_r_outer / 12);
+        for (int n = 0; n < 6; n++)
+        {
+            const float a0 = (n)     /6.0f * 2.0f * IM_PI - aeps;
+            const float a1 = (n+1.0f)/6.0f * 2.0f * IM_PI + aeps;
+            const int vert_start_idx = draw_list->VtxBuffer.Size;
+            draw_list->PathArcTo(wheel_center, (wheel_r_inner + wheel_r_outer)*0.5f, a0, a1, segment_per_arc);
+            draw_list->PathStroke(col_white, 0, wheel_thickness);
+            const int vert_end_idx = draw_list->VtxBuffer.Size;
+
+            // Paint colors over existing vertices
+            ImVec2 gradient_p0(wheel_center.x + ImCos(a0) * wheel_r_inner, wheel_center.y + ImSin(a0) * wheel_r_inner);
+            ImVec2 gradient_p1(wheel_center.x + ImCos(a1) * wheel_r_inner, wheel_center.y + ImSin(a1) * wheel_r_inner);
+            ShadeVertsLinearColorGradientKeepAlpha(draw_list, vert_start_idx, vert_end_idx, gradient_p0, gradient_p1, col_hues[n], col_hues[n + 1]);
+        }
+
+        // Render Cursor + preview on Hue Wheel
+        float cos_hue_angle = ImCos(H * 2.0f * IM_PI);
+        float sin_hue_angle = ImSin(H * 2.0f * IM_PI);
+        ImVec2 hue_cursor_pos(wheel_center.x + cos_hue_angle * (wheel_r_inner + wheel_r_outer) * 0.5f, wheel_center.y + sin_hue_angle * (wheel_r_inner + wheel_r_outer) * 0.5f);
+        float hue_cursor_rad = value_changed_h ? wheel_thickness * 0.65f : wheel_thickness * 0.55f;
+        int hue_cursor_segments = ImClamp((int)(hue_cursor_rad / 1.4f), 9, 32);
+        draw_list->AddCircleFilled(hue_cursor_pos, hue_cursor_rad, hue_color32, hue_cursor_segments);
+        draw_list->AddCircle(hue_cursor_pos, hue_cursor_rad + 1, col_midgrey, hue_cursor_segments);
+        draw_list->AddCircle(hue_cursor_pos, hue_cursor_rad, col_white, hue_cursor_segments);
+
+        // Render SV triangle (rotated according to hue)
+        ImVec2 tra = wheel_center + ImRotate(triangle_pa, cos_hue_angle, sin_hue_angle);
+        ImVec2 trb = wheel_center + ImRotate(triangle_pb, cos_hue_angle, sin_hue_angle);
+        ImVec2 trc = wheel_center + ImRotate(triangle_pc, cos_hue_angle, sin_hue_angle);
+        ImVec2 uv_white = GetFontTexUvWhitePixel();
+        draw_list->PrimReserve(6, 6);
+        draw_list->PrimVtx(tra, uv_white, hue_color32);
+        draw_list->PrimVtx(trb, uv_white, hue_color32);
+        draw_list->PrimVtx(trc, uv_white, col_white);
+        draw_list->PrimVtx(tra, uv_white, 0);
+        draw_list->PrimVtx(trb, uv_white, col_black);
+        draw_list->PrimVtx(trc, uv_white, 0);
+        draw_list->AddTriangle(tra, trb, trc, col_midgrey, 1.5f);
+        sv_cursor_pos = ImLerp(ImLerp(trc, tra, ImSaturate(S)), trb, ImSaturate(1 - V));
+    }
+    else if (flags & ImGuiColorEditFlags_PickerHueBar)
+    {
+        // Render SV Square
+        draw_list->AddRectFilledMultiColor(picker_pos, picker_pos + ImVec2(sv_picker_size, sv_picker_size), col_white, hue_color32, hue_color32, col_white);
+        draw_list->AddRectFilledMultiColor(picker_pos, picker_pos + ImVec2(sv_picker_size, sv_picker_size), 0, 0, col_black, col_black);
+        RenderFrameBorder(picker_pos, picker_pos + ImVec2(sv_picker_size, sv_picker_size), 0.0f);
+        sv_cursor_pos.x = ImClamp(IM_ROUND(picker_pos.x + ImSaturate(S)     * sv_picker_size), picker_pos.x + 2, picker_pos.x + sv_picker_size - 2); // Sneakily prevent the circle to stick out too much
+        sv_cursor_pos.y = ImClamp(IM_ROUND(picker_pos.y + ImSaturate(1 - V) * sv_picker_size), picker_pos.y + 2, picker_pos.y + sv_picker_size - 2);
+
+        // Render Hue Bar
+        for (int i = 0; i < 6; ++i)
+            draw_list->AddRectFilledMultiColor(ImVec2(bar0_pos_x, picker_pos.y + i * (sv_picker_size / 6)), ImVec2(bar0_pos_x + bars_width, picker_pos.y + (i + 1) * (sv_picker_size / 6)), col_hues[i], col_hues[i], col_hues[i + 1], col_hues[i + 1]);
+        float bar0_line_y = IM_ROUND(picker_pos.y + H * sv_picker_size);
+        RenderFrameBorder(ImVec2(bar0_pos_x, picker_pos.y), ImVec2(bar0_pos_x + bars_width, picker_pos.y + sv_picker_size), 0.0f);
+        RenderArrowsForVerticalBar(draw_list, ImVec2(bar0_pos_x - 1, bar0_line_y), ImVec2(bars_triangles_half_sz + 1, bars_triangles_half_sz), bars_width + 2.0f, style.Alpha);
+    }
+
+    // Render cursor/preview circle (clamp S/V within 0..1 range because floating points colors may lead HSV values to be out of range)
+    float sv_cursor_rad = value_changed_sv ? 10.0f : 6.0f;
+    draw_list->AddCircleFilled(sv_cursor_pos, sv_cursor_rad, user_col32_striped_of_alpha, 12);
+    draw_list->AddCircle(sv_cursor_pos, sv_cursor_rad + 1, col_midgrey, 12);
+    draw_list->AddCircle(sv_cursor_pos, sv_cursor_rad, col_white, 12);
+
+    // Render alpha bar
+    if (alpha_bar)
+    {
+        float alpha = ImSaturate(col[3]);
+        ImRect bar1_bb(bar1_pos_x, picker_pos.y, bar1_pos_x + bars_width, picker_pos.y + sv_picker_size);
+        RenderColorRectWithAlphaCheckerboard(draw_list, bar1_bb.Min, bar1_bb.Max, 0, bar1_bb.GetWidth() / 2.0f, ImVec2(0.0f, 0.0f));
+        draw_list->AddRectFilledMultiColor(bar1_bb.Min, bar1_bb.Max, user_col32_striped_of_alpha, user_col32_striped_of_alpha, user_col32_striped_of_alpha & ~IM_COL32_A_MASK, user_col32_striped_of_alpha & ~IM_COL32_A_MASK);
+        float bar1_line_y = IM_ROUND(picker_pos.y + (1.0f - alpha) * sv_picker_size);
+        RenderFrameBorder(bar1_bb.Min, bar1_bb.Max, 0.0f);
+        RenderArrowsForVerticalBar(draw_list, ImVec2(bar1_pos_x - 1, bar1_line_y), ImVec2(bars_triangles_half_sz + 1, bars_triangles_half_sz), bars_width + 2.0f, style.Alpha);
+    }
+
+    EndGroup();
+
+    if (value_changed && memcmp(backup_initial_col, col, components * sizeof(float)) == 0)
+        value_changed = false;
+    if (value_changed)
+        MarkItemEdited(g.LastItemData.ID);
+
+    PopID();
+
+    return value_changed;
+}
+
+// A little color square. Return true when clicked.
+// FIXME: May want to display/ignore the alpha component in the color display? Yet show it in the tooltip.
+// 'desc_id' is not called 'label' because we don't display it next to the button, but only in the tooltip.
+// Note that 'col' may be encoded in HSV if ImGuiColorEditFlags_InputHSV is set.
+bool ImGui::ColorButton(const char* desc_id, const ImVec4& col, ImGuiColorEditFlags flags, const ImVec2& size_arg)
+{
+    ImGuiWindow* window = GetCurrentWindow();
+    if (window->SkipItems)
+        return false;
+
+    ImGuiContext& g = *GImGui;
+    const ImGuiID id = window->GetID(desc_id);
+    const float default_size = GetFrameHeight();
+    const ImVec2 size(size_arg.x == 0.0f ? default_size : size_arg.x, size_arg.y == 0.0f ? default_size : size_arg.y);
+    const ImRect bb(window->DC.CursorPos, window->DC.CursorPos + size);
+    ItemSize(bb, (size.y >= default_size) ? g.Style.FramePadding.y : 0.0f);
+    if (!ItemAdd(bb, id))
+        return false;
+
+    bool hovered, held;
+    bool pressed = ButtonBehavior(bb, id, &hovered, &held);
+
+    if (flags & ImGuiColorEditFlags_NoAlpha)
+        flags &= ~(ImGuiColorEditFlags_AlphaPreview | ImGuiColorEditFlags_AlphaPreviewHalf);
+
+    ImVec4 col_rgb = col;
+    if (flags & ImGuiColorEditFlags_InputHSV)
+        ColorConvertHSVtoRGB(col_rgb.x, col_rgb.y, col_rgb.z, col_rgb.x, col_rgb.y, col_rgb.z);
+
+    ImVec4 col_rgb_without_alpha(col_rgb.x, col_rgb.y, col_rgb.z, 1.0f);
+    float grid_step = ImMin(size.x, size.y) / 2.99f;
+    float rounding = ImMin(g.Style.FrameRounding, grid_step * 0.5f);
+    ImRect bb_inner = bb;
+    float off = 0.0f;
+    if ((flags & ImGuiColorEditFlags_NoBorder) == 0)
+    {
+        off = -0.75f; // The border (using Col_FrameBg) tends to look off when color is near-opaque and rounding is enabled. This offset seemed like a good middle ground to reduce those artifacts.
+        bb_inner.Expand(off);
+    }
+    if ((flags & ImGuiColorEditFlags_AlphaPreviewHalf) && col_rgb.w < 1.0f)
+    {
+        float mid_x = IM_ROUND((bb_inner.Min.x + bb_inner.Max.x) * 0.5f);
+        RenderColorRectWithAlphaCheckerboard(window->DrawList, ImVec2(bb_inner.Min.x + grid_step, bb_inner.Min.y), bb_inner.Max, GetColorU32(col_rgb), grid_step, ImVec2(-grid_step + off, off), rounding, ImDrawFlags_RoundCornersRight);
+        window->DrawList->AddRectFilled(bb_inner.Min, ImVec2(mid_x, bb_inner.Max.y), GetColorU32(col_rgb_without_alpha), rounding, ImDrawFlags_RoundCornersLeft);
+    }
+    else
+    {
+        // Because GetColorU32() multiplies by the global style Alpha and we don't want to display a checkerboard if the source code had no alpha
+        ImVec4 col_source = (flags & ImGuiColorEditFlags_AlphaPreview) ? col_rgb : col_rgb_without_alpha;
+        if (col_source.w < 1.0f)
+            RenderColorRectWithAlphaCheckerboard(window->DrawList, bb_inner.Min, bb_inner.Max, GetColorU32(col_source), grid_step, ImVec2(off, off), rounding);
+        else
+            window->DrawList->AddRectFilled(bb_inner.Min, bb_inner.Max, GetColorU32(col_source), rounding);
+    }
+    RenderNavHighlight(bb, id);
+    if ((flags & ImGuiColorEditFlags_NoBorder) == 0)
+    {
+        if (g.Style.FrameBorderSize > 0.0f)
+            RenderFrameBorder(bb.Min, bb.Max, rounding);
+        else
+            window->DrawList->AddRect(bb.Min, bb.Max, GetColorU32(ImGuiCol_FrameBg), rounding); // Color button are often in need of some sort of border
+    }
+
+    // Drag and Drop Source
+    // NB: The ActiveId test is merely an optional micro-optimization, BeginDragDropSource() does the same test.
+    if (g.ActiveId == id && !(flags & ImGuiColorEditFlags_NoDragDrop) && BeginDragDropSource())
+    {
+        if (flags & ImGuiColorEditFlags_NoAlpha)
+            SetDragDropPayload(IMGUI_PAYLOAD_TYPE_COLOR_3F, &col_rgb, sizeof(float) * 3, ImGuiCond_Once);
+        else
+            SetDragDropPayload(IMGUI_PAYLOAD_TYPE_COLOR_4F, &col_rgb, sizeof(float) * 4, ImGuiCond_Once);
+        ColorButton(desc_id, col, flags);
+        SameLine();
+        TextEx("Color");
+        EndDragDropSource();
+    }
+
+    // Tooltip
+    if (!(flags & ImGuiColorEditFlags_NoTooltip) && hovered)
+        ColorTooltip(desc_id, &col.x, flags & (ImGuiColorEditFlags_InputMask_ | ImGuiColorEditFlags_NoAlpha | ImGuiColorEditFlags_AlphaPreview | ImGuiColorEditFlags_AlphaPreviewHalf));
+
+    return pressed;
+}
+
+// Initialize/override default color options
+void ImGui::SetColorEditOptions(ImGuiColorEditFlags flags)
+{
+    ImGuiContext& g = *GImGui;
+    if ((flags & ImGuiColorEditFlags_DisplayMask_) == 0)
+        flags |= ImGuiColorEditFlags_DefaultOptions_ & ImGuiColorEditFlags_DisplayMask_;
+    if ((flags & ImGuiColorEditFlags_DataTypeMask_) == 0)
+        flags |= ImGuiColorEditFlags_DefaultOptions_ & ImGuiColorEditFlags_DataTypeMask_;
+    if ((flags & ImGuiColorEditFlags_PickerMask_) == 0)
+        flags |= ImGuiColorEditFlags_DefaultOptions_ & ImGuiColorEditFlags_PickerMask_;
+    if ((flags & ImGuiColorEditFlags_InputMask_) == 0)
+        flags |= ImGuiColorEditFlags_DefaultOptions_ & ImGuiColorEditFlags_InputMask_;
+    IM_ASSERT(ImIsPowerOfTwo(flags & ImGuiColorEditFlags_DisplayMask_));    // Check only 1 option is selected
+    IM_ASSERT(ImIsPowerOfTwo(flags & ImGuiColorEditFlags_DataTypeMask_));   // Check only 1 option is selected
+    IM_ASSERT(ImIsPowerOfTwo(flags & ImGuiColorEditFlags_PickerMask_));     // Check only 1 option is selected
+    IM_ASSERT(ImIsPowerOfTwo(flags & ImGuiColorEditFlags_InputMask_));      // Check only 1 option is selected
+    g.ColorEditOptions = flags;
+}
+
+// Note: only access 3 floats if ImGuiColorEditFlags_NoAlpha flag is set.
+void ImGui::ColorTooltip(const char* text, const float* col, ImGuiColorEditFlags flags)
+{
+    ImGuiContext& g = *GImGui;
+
+    BeginTooltipEx(ImGuiTooltipFlags_OverridePreviousTooltip, ImGuiWindowFlags_None);
+    const char* text_end = text ? FindRenderedTextEnd(text, NULL) : text;
+    if (text_end > text)
+    {
+        TextEx(text, text_end);
+        Separator();
+    }
+
+    ImVec2 sz(g.FontSize * 3 + g.Style.FramePadding.y * 2, g.FontSize * 3 + g.Style.FramePadding.y * 2);
+    ImVec4 cf(col[0], col[1], col[2], (flags & ImGuiColorEditFlags_NoAlpha) ? 1.0f : col[3]);
+    int cr = IM_F32_TO_INT8_SAT(col[0]), cg = IM_F32_TO_INT8_SAT(col[1]), cb = IM_F32_TO_INT8_SAT(col[2]), ca = (flags & ImGuiColorEditFlags_NoAlpha) ? 255 : IM_F32_TO_INT8_SAT(col[3]);
+    ColorButton("##preview", cf, (flags & (ImGuiColorEditFlags_InputMask_ | ImGuiColorEditFlags_NoAlpha | ImGuiColorEditFlags_AlphaPreview | ImGuiColorEditFlags_AlphaPreviewHalf)) | ImGuiColorEditFlags_NoTooltip, sz);
+    SameLine();
+    if ((flags & ImGuiColorEditFlags_InputRGB) || !(flags & ImGuiColorEditFlags_InputMask_))
+    {
+        if (flags & ImGuiColorEditFlags_NoAlpha)
+            Text("#%02X%02X%02X\nR: %d, G: %d, B: %d\n(%.3f, %.3f, %.3f)", cr, cg, cb, cr, cg, cb, col[0], col[1], col[2]);
+        else
+            Text("#%02X%02X%02X%02X\nR:%d, G:%d, B:%d, A:%d\n(%.3f, %.3f, %.3f, %.3f)", cr, cg, cb, ca, cr, cg, cb, ca, col[0], col[1], col[2], col[3]);
+    }
+    else if (flags & ImGuiColorEditFlags_InputHSV)
+    {
+        if (flags & ImGuiColorEditFlags_NoAlpha)
+            Text("H: %.3f, S: %.3f, V: %.3f", col[0], col[1], col[2]);
+        else
+            Text("H: %.3f, S: %.3f, V: %.3f, A: %.3f", col[0], col[1], col[2], col[3]);
+    }
+    EndTooltip();
+}
+
+void ImGui::ColorEditOptionsPopup(const float* col, ImGuiColorEditFlags flags)
+{
+    bool allow_opt_inputs = !(flags & ImGuiColorEditFlags_DisplayMask_);
+    bool allow_opt_datatype = !(flags & ImGuiColorEditFlags_DataTypeMask_);
+    if ((!allow_opt_inputs && !allow_opt_datatype) || !BeginPopup("context"))
+        return;
+    ImGuiContext& g = *GImGui;
+    ImGuiColorEditFlags opts = g.ColorEditOptions;
+    if (allow_opt_inputs)
+    {
+        if (RadioButton("RGB", (opts & ImGuiColorEditFlags_DisplayRGB) != 0)) opts = (opts & ~ImGuiColorEditFlags_DisplayMask_) | ImGuiColorEditFlags_DisplayRGB;
+        if (RadioButton("HSV", (opts & ImGuiColorEditFlags_DisplayHSV) != 0)) opts = (opts & ~ImGuiColorEditFlags_DisplayMask_) | ImGuiColorEditFlags_DisplayHSV;
+        if (RadioButton("Hex", (opts & ImGuiColorEditFlags_DisplayHex) != 0)) opts = (opts & ~ImGuiColorEditFlags_DisplayMask_) | ImGuiColorEditFlags_DisplayHex;
+    }
+    if (allow_opt_datatype)
+    {
+        if (allow_opt_inputs) Separator();
+        if (RadioButton("0..255",     (opts & ImGuiColorEditFlags_Uint8) != 0)) opts = (opts & ~ImGuiColorEditFlags_DataTypeMask_) | ImGuiColorEditFlags_Uint8;
+        if (RadioButton("0.00..1.00", (opts & ImGuiColorEditFlags_Float) != 0)) opts = (opts & ~ImGuiColorEditFlags_DataTypeMask_) | ImGuiColorEditFlags_Float;
+    }
+
+    if (allow_opt_inputs || allow_opt_datatype)
+        Separator();
+    if (Button("Copy as..", ImVec2(-1, 0)))
+        OpenPopup("Copy");
+    if (BeginPopup("Copy"))
+    {
+        int cr = IM_F32_TO_INT8_SAT(col[0]), cg = IM_F32_TO_INT8_SAT(col[1]), cb = IM_F32_TO_INT8_SAT(col[2]), ca = (flags & ImGuiColorEditFlags_NoAlpha) ? 255 : IM_F32_TO_INT8_SAT(col[3]);
+        char buf[64];
+        ImFormatString(buf, IM_ARRAYSIZE(buf), "(%.3ff, %.3ff, %.3ff, %.3ff)", col[0], col[1], col[2], (flags & ImGuiColorEditFlags_NoAlpha) ? 1.0f : col[3]);
+        if (Selectable(buf))
+            SetClipboardText(buf);
+        ImFormatString(buf, IM_ARRAYSIZE(buf), "(%d,%d,%d,%d)", cr, cg, cb, ca);
+        if (Selectable(buf))
+            SetClipboardText(buf);
+        ImFormatString(buf, IM_ARRAYSIZE(buf), "#%02X%02X%02X", cr, cg, cb);
+        if (Selectable(buf))
+            SetClipboardText(buf);
+        if (!(flags & ImGuiColorEditFlags_NoAlpha))
+        {
+            ImFormatString(buf, IM_ARRAYSIZE(buf), "#%02X%02X%02X%02X", cr, cg, cb, ca);
+            if (Selectable(buf))
+                SetClipboardText(buf);
+        }
+        EndPopup();
+    }
+
+    g.ColorEditOptions = opts;
+    EndPopup();
+}
+
+void ImGui::ColorPickerOptionsPopup(const float* ref_col, ImGuiColorEditFlags flags)
+{
+    bool allow_opt_picker = !(flags & ImGuiColorEditFlags_PickerMask_);
+    bool allow_opt_alpha_bar = !(flags & ImGuiColorEditFlags_NoAlpha) && !(flags & ImGuiColorEditFlags_AlphaBar);
+    if ((!allow_opt_picker && !allow_opt_alpha_bar) || !BeginPopup("context"))
+        return;
+    ImGuiContext& g = *GImGui;
+    if (allow_opt_picker)
+    {
+        ImVec2 picker_size(g.FontSize * 8, ImMax(g.FontSize * 8 - (GetFrameHeight() + g.Style.ItemInnerSpacing.x), 1.0f)); // FIXME: Picker size copied from main picker function
+        PushItemWidth(picker_size.x);
+        for (int picker_type = 0; picker_type < 2; picker_type++)
+        {
+            // Draw small/thumbnail version of each picker type (over an invisible button for selection)
+            if (picker_type > 0) Separator();
+            PushID(picker_type);
+            ImGuiColorEditFlags picker_flags = ImGuiColorEditFlags_NoInputs | ImGuiColorEditFlags_NoOptions | ImGuiColorEditFlags_NoLabel | ImGuiColorEditFlags_NoSidePreview | (flags & ImGuiColorEditFlags_NoAlpha);
+            if (picker_type == 0) picker_flags |= ImGuiColorEditFlags_PickerHueBar;
+            if (picker_type == 1) picker_flags |= ImGuiColorEditFlags_PickerHueWheel;
+            ImVec2 backup_pos = GetCursorScreenPos();
+            if (Selectable("##selectable", false, 0, picker_size)) // By default, Selectable() is closing popup
+                g.ColorEditOptions = (g.ColorEditOptions & ~ImGuiColorEditFlags_PickerMask_) | (picker_flags & ImGuiColorEditFlags_PickerMask_);
+            SetCursorScreenPos(backup_pos);
+            ImVec4 previewing_ref_col;
+            memcpy(&previewing_ref_col, ref_col, sizeof(float) * ((picker_flags & ImGuiColorEditFlags_NoAlpha) ? 3 : 4));
+            ColorPicker4("##previewing_picker", &previewing_ref_col.x, picker_flags);
+            PopID();
+        }
+        PopItemWidth();
+    }
+    if (allow_opt_alpha_bar)
+    {
+        if (allow_opt_picker) Separator();
+        CheckboxFlags("Alpha Bar", &g.ColorEditOptions, ImGuiColorEditFlags_AlphaBar);
+    }
+    EndPopup();
+}
+
+//-------------------------------------------------------------------------
+// [SECTION] Widgets: TreeNode, CollapsingHeader, etc.
+//-------------------------------------------------------------------------
+// - TreeNode()
+// - TreeNodeV()
+// - TreeNodeEx()
+// - TreeNodeExV()
+// - TreeNodeBehavior() [Internal]
+// - TreePush()
+// - TreePop()
+// - GetTreeNodeToLabelSpacing()
+// - SetNextItemOpen()
+// - CollapsingHeader()
+//-------------------------------------------------------------------------
+
+bool ImGui::TreeNode(const char* str_id, const char* fmt, ...)
+{
+    va_list args;
+    va_start(args, fmt);
+    bool is_open = TreeNodeExV(str_id, 0, fmt, args);
+    va_end(args);
+    return is_open;
+}
+
+bool ImGui::TreeNode(const void* ptr_id, const char* fmt, ...)
+{
+    va_list args;
+    va_start(args, fmt);
+    bool is_open = TreeNodeExV(ptr_id, 0, fmt, args);
+    va_end(args);
+    return is_open;
+}
+
+bool ImGui::TreeNode(const char* label)
+{
+    ImGuiWindow* window = GetCurrentWindow();
+    if (window->SkipItems)
+        return false;
+    return TreeNodeBehavior(window->GetID(label), 0, label, NULL);
+}
+
+bool ImGui::TreeNodeV(const char* str_id, const char* fmt, va_list args)
+{
+    return TreeNodeExV(str_id, 0, fmt, args);
+}
+
+bool ImGui::TreeNodeV(const void* ptr_id, const char* fmt, va_list args)
+{
+    return TreeNodeExV(ptr_id, 0, fmt, args);
+}
+
+bool ImGui::TreeNodeEx(const char* label, ImGuiTreeNodeFlags flags)
+{
+    ImGuiWindow* window = GetCurrentWindow();
+    if (window->SkipItems)
+        return false;
+
+    return TreeNodeBehavior(window->GetID(label), flags, label, NULL);
+}
+
+bool ImGui::TreeNodeEx(const char* str_id, ImGuiTreeNodeFlags flags, const char* fmt, ...)
+{
+    va_list args;
+    va_start(args, fmt);
+    bool is_open = TreeNodeExV(str_id, flags, fmt, args);
+    va_end(args);
+    return is_open;
+}
+
+bool ImGui::TreeNodeEx(const void* ptr_id, ImGuiTreeNodeFlags flags, const char* fmt, ...)
+{
+    va_list args;
+    va_start(args, fmt);
+    bool is_open = TreeNodeExV(ptr_id, flags, fmt, args);
+    va_end(args);
+    return is_open;
+}
+
+bool ImGui::TreeNodeExV(const char* str_id, ImGuiTreeNodeFlags flags, const char* fmt, va_list args)
+{
+    ImGuiWindow* window = GetCurrentWindow();
+    if (window->SkipItems)
+        return false;
+
+    const char* label, *label_end;
+    ImFormatStringToTempBufferV(&label, &label_end, fmt, args);
+    return TreeNodeBehavior(window->GetID(str_id), flags, label, label_end);
+}
+
+bool ImGui::TreeNodeExV(const void* ptr_id, ImGuiTreeNodeFlags flags, const char* fmt, va_list args)
+{
+    ImGuiWindow* window = GetCurrentWindow();
+    if (window->SkipItems)
+        return false;
+
+    const char* label, *label_end;
+    ImFormatStringToTempBufferV(&label, &label_end, fmt, args);
+    return TreeNodeBehavior(window->GetID(ptr_id), flags, label, label_end);
+}
+
+bool ImGui::TreeNodeBehaviorIsOpen(ImGuiID id, ImGuiTreeNodeFlags flags)
+{
+    if (flags & ImGuiTreeNodeFlags_Leaf)
+        return true;
+
+    // We only write to the tree storage if the user clicks (or explicitly use the SetNextItemOpen function)
+    ImGuiContext& g = *GImGui;
+    ImGuiWindow* window = g.CurrentWindow;
+    ImGuiStorage* storage = window->DC.StateStorage;
+
+    bool is_open;
+    if (g.NextItemData.Flags & ImGuiNextItemDataFlags_HasOpen)
+    {
+        if (g.NextItemData.OpenCond & ImGuiCond_Always)
+        {
+            is_open = g.NextItemData.OpenVal;
+            storage->SetInt(id, is_open);
+        }
+        else
+        {
+            // We treat ImGuiCond_Once and ImGuiCond_FirstUseEver the same because tree node state are not saved persistently.
+            const int stored_value = storage->GetInt(id, -1);
+            if (stored_value == -1)
+            {
+                is_open = g.NextItemData.OpenVal;
+                storage->SetInt(id, is_open);
+            }
+            else
+            {
+                is_open = stored_value != 0;
+            }
+        }
+    }
+    else
+    {
+        is_open = storage->GetInt(id, (flags & ImGuiTreeNodeFlags_DefaultOpen) ? 1 : 0) != 0;
+    }
+
+    // When logging is enabled, we automatically expand tree nodes (but *NOT* collapsing headers.. seems like sensible behavior).
+    // NB- If we are above max depth we still allow manually opened nodes to be logged.
+    if (g.LogEnabled && !(flags & ImGuiTreeNodeFlags_NoAutoOpenOnLog) && (window->DC.TreeDepth - g.LogDepthRef) < g.LogDepthToExpand)
+        is_open = true;
+
+    return is_open;
+}
+
+bool ImGui::TreeNodeBehavior(ImGuiID id, ImGuiTreeNodeFlags flags, const char* label, const char* label_end)
+{
+    ImGuiWindow* window = GetCurrentWindow();
+    if (window->SkipItems)
+        return false;
+
+    ImGuiContext& g = *GImGui;
+    const ImGuiStyle& style = g.Style;
+    const bool display_frame = (flags & ImGuiTreeNodeFlags_Framed) != 0;
+    const ImVec2 padding = (display_frame || (flags & ImGuiTreeNodeFlags_FramePadding)) ? style.FramePadding : ImVec2(style.FramePadding.x, ImMin(window->DC.CurrLineTextBaseOffset, style.FramePadding.y));
+
+    if (!label_end)
+        label_end = FindRenderedTextEnd(label);
+    const ImVec2 label_size = CalcTextSize(label, label_end, false);
+
+    // We vertically grow up to current line height up the typical widget height.
+    const float frame_height = ImMax(ImMin(window->DC.CurrLineSize.y, g.FontSize + style.FramePadding.y * 2), label_size.y + padding.y * 2);
+    ImRect frame_bb;
+    frame_bb.Min.x = (flags & ImGuiTreeNodeFlags_SpanFullWidth) ? window->WorkRect.Min.x : window->DC.CursorPos.x;
+    frame_bb.Min.y = window->DC.CursorPos.y;
+    frame_bb.Max.x = window->WorkRect.Max.x;
+    frame_bb.Max.y = window->DC.CursorPos.y + frame_height;
+    if (display_frame)
+    {
+        // Framed header expand a little outside the default padding, to the edge of InnerClipRect
+        // (FIXME: May remove this at some point and make InnerClipRect align with WindowPadding.x instead of WindowPadding.x*0.5f)
+        frame_bb.Min.x -= IM_FLOOR(window->WindowPadding.x * 0.5f - 1.0f);
+        frame_bb.Max.x += IM_FLOOR(window->WindowPadding.x * 0.5f);
+    }
+
+    const float text_offset_x = g.FontSize + (display_frame ? padding.x * 3 : padding.x * 2);           // Collapser arrow width + Spacing
+    const float text_offset_y = ImMax(padding.y, window->DC.CurrLineTextBaseOffset);                    // Latch before ItemSize changes it
+    const float text_width = g.FontSize + (label_size.x > 0.0f ? label_size.x + padding.x * 2 : 0.0f);  // Include collapser
+    ImVec2 text_pos(window->DC.CursorPos.x + text_offset_x, window->DC.CursorPos.y + text_offset_y);
+    ItemSize(ImVec2(text_width, frame_height), padding.y);
+
+    // For regular tree nodes, we arbitrary allow to click past 2 worth of ItemSpacing
+    ImRect interact_bb = frame_bb;
+    if (!display_frame && (flags & (ImGuiTreeNodeFlags_SpanAvailWidth | ImGuiTreeNodeFlags_SpanFullWidth)) == 0)
+        interact_bb.Max.x = frame_bb.Min.x + text_width + style.ItemSpacing.x * 2.0f;
+
+    // Store a flag for the current depth to tell if we will allow closing this node when navigating one of its child.
+    // For this purpose we essentially compare if g.NavIdIsAlive went from 0 to 1 between TreeNode() and TreePop().
+    // This is currently only support 32 level deep and we are fine with (1 << Depth) overflowing into a zero.
+    const bool is_leaf = (flags & ImGuiTreeNodeFlags_Leaf) != 0;
+    bool is_open = TreeNodeBehaviorIsOpen(id, flags);
+    if (is_open && !g.NavIdIsAlive && (flags & ImGuiTreeNodeFlags_NavLeftJumpsBackHere) && !(flags & ImGuiTreeNodeFlags_NoTreePushOnOpen))
+        window->DC.TreeJumpToParentOnPopMask |= (1 << window->DC.TreeDepth);
+
+    bool item_add = ItemAdd(interact_bb, id);
+    g.LastItemData.StatusFlags |= ImGuiItemStatusFlags_HasDisplayRect;
+    g.LastItemData.DisplayRect = frame_bb;
+
+    if (!item_add)
+    {
+        if (is_open && !(flags & ImGuiTreeNodeFlags_NoTreePushOnOpen))
+            TreePushOverrideID(id);
+        IMGUI_TEST_ENGINE_ITEM_INFO(g.LastItemData.ID, label, g.LastItemData.StatusFlags | (is_leaf ? 0 : ImGuiItemStatusFlags_Openable) | (is_open ? ImGuiItemStatusFlags_Opened : 0));
+        return is_open;
+    }
+
+    ImGuiButtonFlags button_flags = ImGuiTreeNodeFlags_None;
+    if (flags & ImGuiTreeNodeFlags_AllowItemOverlap)
+        button_flags |= ImGuiButtonFlags_AllowItemOverlap;
+    if (!is_leaf)
+        button_flags |= ImGuiButtonFlags_PressedOnDragDropHold;
+
+    // We allow clicking on the arrow section with keyboard modifiers held, in order to easily
+    // allow browsing a tree while preserving selection with code implementing multi-selection patterns.
+    // When clicking on the rest of the tree node we always disallow keyboard modifiers.
+    const float arrow_hit_x1 = (text_pos.x - text_offset_x) - style.TouchExtraPadding.x;
+    const float arrow_hit_x2 = (text_pos.x - text_offset_x) + (g.FontSize + padding.x * 2.0f) + style.TouchExtraPadding.x;
+    const bool is_mouse_x_over_arrow = (g.IO.MousePos.x >= arrow_hit_x1 && g.IO.MousePos.x < arrow_hit_x2);
+    if (window != g.HoveredWindow || !is_mouse_x_over_arrow)
+        button_flags |= ImGuiButtonFlags_NoKeyModifiers;
+
+    // Open behaviors can be altered with the _OpenOnArrow and _OnOnDoubleClick flags.
+    // Some alteration have subtle effects (e.g. toggle on MouseUp vs MouseDown events) due to requirements for multi-selection and drag and drop support.
+    // - Single-click on label = Toggle on MouseUp (default, when _OpenOnArrow=0)
+    // - Single-click on arrow = Toggle on MouseDown (when _OpenOnArrow=0)
+    // - Single-click on arrow = Toggle on MouseDown (when _OpenOnArrow=1)
+    // - Double-click on label = Toggle on MouseDoubleClick (when _OpenOnDoubleClick=1)
+    // - Double-click on arrow = Toggle on MouseDoubleClick (when _OpenOnDoubleClick=1 and _OpenOnArrow=0)
+    // It is rather standard that arrow click react on Down rather than Up.
+    // We set ImGuiButtonFlags_PressedOnClickRelease on OpenOnDoubleClick because we want the item to be active on the initial MouseDown in order for drag and drop to work.
+    if (is_mouse_x_over_arrow)
+        button_flags |= ImGuiButtonFlags_PressedOnClick;
+    else if (flags & ImGuiTreeNodeFlags_OpenOnDoubleClick)
+        button_flags |= ImGuiButtonFlags_PressedOnClickRelease | ImGuiButtonFlags_PressedOnDoubleClick;
+    else
+        button_flags |= ImGuiButtonFlags_PressedOnClickRelease;
+
+    bool selected = (flags & ImGuiTreeNodeFlags_Selected) != 0;
+    const bool was_selected = selected;
+
+    bool hovered, held;
+    bool pressed = ButtonBehavior(interact_bb, id, &hovered, &held, button_flags);
+    bool toggled = false;
+    if (!is_leaf)
+    {
+        if (pressed && g.DragDropHoldJustPressedId != id)
+        {
+            if ((flags & (ImGuiTreeNodeFlags_OpenOnArrow | ImGuiTreeNodeFlags_OpenOnDoubleClick)) == 0 || (g.NavActivateId == id))
+                toggled = true;
+            if (flags & ImGuiTreeNodeFlags_OpenOnArrow)
+                toggled |= is_mouse_x_over_arrow && !g.NavDisableMouseHover; // Lightweight equivalent of IsMouseHoveringRect() since ButtonBehavior() already did the job
+            if ((flags & ImGuiTreeNodeFlags_OpenOnDoubleClick) && g.IO.MouseClickedCount[0] == 2)
+                toggled = true;
+        }
+        else if (pressed && g.DragDropHoldJustPressedId == id)
+        {
+            IM_ASSERT(button_flags & ImGuiButtonFlags_PressedOnDragDropHold);
+            if (!is_open) // When using Drag and Drop "hold to open" we keep the node highlighted after opening, but never close it again.
+                toggled = true;
+        }
+
+        if (g.NavId == id && g.NavMoveDir == ImGuiDir_Left && is_open)
+        {
+            toggled = true;
+            NavMoveRequestCancel();
+        }
+        if (g.NavId == id && g.NavMoveDir == ImGuiDir_Right && !is_open) // If there's something upcoming on the line we may want to give it the priority?
+        {
+            toggled = true;
+            NavMoveRequestCancel();
+        }
+
+        if (toggled)
+        {
+            is_open = !is_open;
+            window->DC.StateStorage->SetInt(id, is_open);
+            g.LastItemData.StatusFlags |= ImGuiItemStatusFlags_ToggledOpen;
+        }
+    }
+    if (flags & ImGuiTreeNodeFlags_AllowItemOverlap)
+        SetItemAllowOverlap();
+
+    // In this branch, TreeNodeBehavior() cannot toggle the selection so this will never trigger.
+    if (selected != was_selected) //-V547
+        g.LastItemData.StatusFlags |= ImGuiItemStatusFlags_ToggledSelection;
+
+    // Render
+    const ImU32 text_col = GetColorU32(ImGuiCol_Text);
+    ImGuiNavHighlightFlags nav_highlight_flags = ImGuiNavHighlightFlags_TypeThin;
+    if (display_frame)
+    {
+        // Framed type
+        const ImU32 bg_col = GetColorU32((held && hovered) ? ImGuiCol_HeaderActive : hovered ? ImGuiCol_HeaderHovered : ImGuiCol_Header);
+        RenderFrame(frame_bb.Min, frame_bb.Max, bg_col, true, style.FrameRounding);
+        RenderNavHighlight(frame_bb, id, nav_highlight_flags);
+        if (flags & ImGuiTreeNodeFlags_Bullet)
+            RenderBullet(window->DrawList, ImVec2(text_pos.x - text_offset_x * 0.60f, text_pos.y + g.FontSize * 0.5f), text_col);
+        else if (!is_leaf)
+            RenderArrow(window->DrawList, ImVec2(text_pos.x - text_offset_x + padding.x, text_pos.y), text_col, is_open ? ImGuiDir_Down : ImGuiDir_Right, 1.0f);
+        else // Leaf without bullet, left-adjusted text
+            text_pos.x -= text_offset_x;
+        if (flags & ImGuiTreeNodeFlags_ClipLabelForTrailingButton)
+            frame_bb.Max.x -= g.FontSize + style.FramePadding.x;
+
+        if (g.LogEnabled)
+            LogSetNextTextDecoration("###", "###");
+        RenderTextClipped(text_pos, frame_bb.Max, label, label_end, &label_size);
+    }
+    else
+    {
+        // Unframed typed for tree nodes
+        if (hovered || selected)
+        {
+            const ImU32 bg_col = GetColorU32((held && hovered) ? ImGuiCol_HeaderActive : hovered ? ImGuiCol_HeaderHovered : ImGuiCol_Header);
+            RenderFrame(frame_bb.Min, frame_bb.Max, bg_col, false);
+        }
+        RenderNavHighlight(frame_bb, id, nav_highlight_flags);
+        if (flags & ImGuiTreeNodeFlags_Bullet)
+            RenderBullet(window->DrawList, ImVec2(text_pos.x - text_offset_x * 0.5f, text_pos.y + g.FontSize * 0.5f), text_col);
+        else if (!is_leaf)
+            RenderArrow(window->DrawList, ImVec2(text_pos.x - text_offset_x + padding.x, text_pos.y + g.FontSize * 0.15f), text_col, is_open ? ImGuiDir_Down : ImGuiDir_Right, 0.70f);
+        if (g.LogEnabled)
+            LogSetNextTextDecoration(">", NULL);
+        RenderText(text_pos, label, label_end, false);
+    }
+
+    if (is_open && !(flags & ImGuiTreeNodeFlags_NoTreePushOnOpen))
+        TreePushOverrideID(id);
+    IMGUI_TEST_ENGINE_ITEM_INFO(id, label, g.LastItemData.StatusFlags | (is_leaf ? 0 : ImGuiItemStatusFlags_Openable) | (is_open ? ImGuiItemStatusFlags_Opened : 0));
+    return is_open;
+}
+
+void ImGui::TreePush(const char* str_id)
+{
+    ImGuiWindow* window = GetCurrentWindow();
+    Indent();
+    window->DC.TreeDepth++;
+    PushID(str_id);
+}
+
+void ImGui::TreePush(const void* ptr_id)
+{
+    ImGuiWindow* window = GetCurrentWindow();
+    Indent();
+    window->DC.TreeDepth++;
+    PushID(ptr_id);
+}
+
+void ImGui::TreePushOverrideID(ImGuiID id)
+{
+    ImGuiContext& g = *GImGui;
+    ImGuiWindow* window = g.CurrentWindow;
+    Indent();
+    window->DC.TreeDepth++;
+    PushOverrideID(id);
+}
+
+void ImGui::TreePop()
+{
+    ImGuiContext& g = *GImGui;
+    ImGuiWindow* window = g.CurrentWindow;
+    Unindent();
+
+    window->DC.TreeDepth--;
+    ImU32 tree_depth_mask = (1 << window->DC.TreeDepth);
+
+    // Handle Left arrow to move to parent tree node (when ImGuiTreeNodeFlags_NavLeftJumpsBackHere is enabled)
+    if (g.NavMoveDir == ImGuiDir_Left && g.NavWindow == window && NavMoveRequestButNoResultYet())
+        if (g.NavIdIsAlive && (window->DC.TreeJumpToParentOnPopMask & tree_depth_mask))
+        {
+            SetNavID(window->IDStack.back(), g.NavLayer, 0, ImRect());
+            NavMoveRequestCancel();
+        }
+    window->DC.TreeJumpToParentOnPopMask &= tree_depth_mask - 1;
+
+    IM_ASSERT(window->IDStack.Size > 1); // There should always be 1 element in the IDStack (pushed during window creation). If this triggers you called TreePop/PopID too much.
+    PopID();
+}
+
+// Horizontal distance preceding label when using TreeNode() or Bullet()
+float ImGui::GetTreeNodeToLabelSpacing()
+{
+    ImGuiContext& g = *GImGui;
+    return g.FontSize + (g.Style.FramePadding.x * 2.0f);
+}
+
+// Set next TreeNode/CollapsingHeader open state.
+void ImGui::SetNextItemOpen(bool is_open, ImGuiCond cond)
+{
+    ImGuiContext& g = *GImGui;
+    if (g.CurrentWindow->SkipItems)
+        return;
+    g.NextItemData.Flags |= ImGuiNextItemDataFlags_HasOpen;
+    g.NextItemData.OpenVal = is_open;
+    g.NextItemData.OpenCond = cond ? cond : ImGuiCond_Always;
+}
+
+// CollapsingHeader returns true when opened but do not indent nor push into the ID stack (because of the ImGuiTreeNodeFlags_NoTreePushOnOpen flag).
+// This is basically the same as calling TreeNodeEx(label, ImGuiTreeNodeFlags_CollapsingHeader). You can remove the _NoTreePushOnOpen flag if you want behavior closer to normal TreeNode().
+bool ImGui::CollapsingHeader(const char* label, ImGuiTreeNodeFlags flags)
+{
+    ImGuiWindow* window = GetCurrentWindow();
+    if (window->SkipItems)
+        return false;
+
+    return TreeNodeBehavior(window->GetID(label), flags | ImGuiTreeNodeFlags_CollapsingHeader, label);
+}
+
+// p_visible == NULL                        : regular collapsing header
+// p_visible != NULL && *p_visible == true  : show a small close button on the corner of the header, clicking the button will set *p_visible = false
+// p_visible != NULL && *p_visible == false : do not show the header at all
+// Do not mistake this with the Open state of the header itself, which you can adjust with SetNextItemOpen() or ImGuiTreeNodeFlags_DefaultOpen.
+bool ImGui::CollapsingHeader(const char* label, bool* p_visible, ImGuiTreeNodeFlags flags)
+{
+    ImGuiWindow* window = GetCurrentWindow();
+    if (window->SkipItems)
+        return false;
+
+    if (p_visible && !*p_visible)
+        return false;
+
+    ImGuiID id = window->GetID(label);
+    flags |= ImGuiTreeNodeFlags_CollapsingHeader;
+    if (p_visible)
+        flags |= ImGuiTreeNodeFlags_AllowItemOverlap | ImGuiTreeNodeFlags_ClipLabelForTrailingButton;
+    bool is_open = TreeNodeBehavior(id, flags, label);
+    if (p_visible != NULL)
+    {
+        // Create a small overlapping close button
+        // FIXME: We can evolve this into user accessible helpers to add extra buttons on title bars, headers, etc.
+        // FIXME: CloseButton can overlap into text, need find a way to clip the text somehow.
+        ImGuiContext& g = *GImGui;
+        ImGuiLastItemData last_item_backup = g.LastItemData;
+        float button_size = g.FontSize;
+        float button_x = ImMax(g.LastItemData.Rect.Min.x, g.LastItemData.Rect.Max.x - g.Style.FramePadding.x * 2.0f - button_size);
+        float button_y = g.LastItemData.Rect.Min.y;
+        ImGuiID close_button_id = GetIDWithSeed("#CLOSE", NULL, id);
+        if (CloseButton(close_button_id, ImVec2(button_x, button_y)))
+            *p_visible = false;
+        g.LastItemData = last_item_backup;
+    }
+
+    return is_open;
+}
+
+//-------------------------------------------------------------------------
+// [SECTION] Widgets: Selectable
+//-------------------------------------------------------------------------
+// - Selectable()
+//-------------------------------------------------------------------------
+
+// Tip: pass a non-visible label (e.g. "##hello") then you can use the space to draw other text or image.
+// But you need to make sure the ID is unique, e.g. enclose calls in PushID/PopID or use ##unique_id.
+// With this scheme, ImGuiSelectableFlags_SpanAllColumns and ImGuiSelectableFlags_AllowItemOverlap are also frequently used flags.
+// FIXME: Selectable() with (size.x == 0.0f) and (SelectableTextAlign.x > 0.0f) followed by SameLine() is currently not supported.
+bool ImGui::Selectable(const char* label, bool selected, ImGuiSelectableFlags flags, const ImVec2& size_arg)
+{
+    ImGuiWindow* window = GetCurrentWindow();
+    if (window->SkipItems)
+        return false;
+
+    ImGuiContext& g = *GImGui;
+    const ImGuiStyle& style = g.Style;
+
+    // Submit label or explicit size to ItemSize(), whereas ItemAdd() will submit a larger/spanning rectangle.
+    ImGuiID id = window->GetID(label);
+    ImVec2 label_size = CalcTextSize(label, NULL, true);
+    ImVec2 size(size_arg.x != 0.0f ? size_arg.x : label_size.x, size_arg.y != 0.0f ? size_arg.y : label_size.y);
+    ImVec2 pos = window->DC.CursorPos;
+    pos.y += window->DC.CurrLineTextBaseOffset;
+    ItemSize(size, 0.0f);
+
+    // Fill horizontal space
+    // We don't support (size < 0.0f) in Selectable() because the ItemSpacing extension would make explicitly right-aligned sizes not visibly match other widgets.
+    const bool span_all_columns = (flags & ImGuiSelectableFlags_SpanAllColumns) != 0;
+    const float min_x = span_all_columns ? window->ParentWorkRect.Min.x : pos.x;
+    const float max_x = span_all_columns ? window->ParentWorkRect.Max.x : window->WorkRect.Max.x;
+    if (size_arg.x == 0.0f || (flags & ImGuiSelectableFlags_SpanAvailWidth))
+        size.x = ImMax(label_size.x, max_x - min_x);
+
+    // Text stays at the submission position, but bounding box may be extended on both sides
+    const ImVec2 text_min = pos;
+    const ImVec2 text_max(min_x + size.x, pos.y + size.y);
+
+    // Selectables are meant to be tightly packed together with no click-gap, so we extend their box to cover spacing between selectable.
+    ImRect bb(min_x, pos.y, text_max.x, text_max.y);
+    if ((flags & ImGuiSelectableFlags_NoPadWithHalfSpacing) == 0)
+    {
+        const float spacing_x = span_all_columns ? 0.0f : style.ItemSpacing.x;
+        const float spacing_y = style.ItemSpacing.y;
+        const float spacing_L = IM_FLOOR(spacing_x * 0.50f);
+        const float spacing_U = IM_FLOOR(spacing_y * 0.50f);
+        bb.Min.x -= spacing_L;
+        bb.Min.y -= spacing_U;
+        bb.Max.x += (spacing_x - spacing_L);
+        bb.Max.y += (spacing_y - spacing_U);
+    }
+    //if (g.IO.KeyCtrl) { GetForegroundDrawList()->AddRect(bb.Min, bb.Max, IM_COL32(0, 255, 0, 255)); }
+
+    // Modify ClipRect for the ItemAdd(), faster than doing a PushColumnsBackground/PushTableBackground for every Selectable..
+    const float backup_clip_rect_min_x = window->ClipRect.Min.x;
+    const float backup_clip_rect_max_x = window->ClipRect.Max.x;
+    if (span_all_columns)
+    {
+        window->ClipRect.Min.x = window->ParentWorkRect.Min.x;
+        window->ClipRect.Max.x = window->ParentWorkRect.Max.x;
+    }
+
+    const bool disabled_item = (flags & ImGuiSelectableFlags_Disabled) != 0;
+    const bool item_add = ItemAdd(bb, id, NULL, disabled_item ? ImGuiItemFlags_Disabled : ImGuiItemFlags_None);
+    if (span_all_columns)
+    {
+        window->ClipRect.Min.x = backup_clip_rect_min_x;
+        window->ClipRect.Max.x = backup_clip_rect_max_x;
+    }
+
+    if (!item_add)
+        return false;
+
+    const bool disabled_global = (g.CurrentItemFlags & ImGuiItemFlags_Disabled) != 0;
+    if (disabled_item && !disabled_global) // Only testing this as an optimization
+        BeginDisabled();
+
+    // FIXME: We can standardize the behavior of those two, we could also keep the fast path of override ClipRect + full push on render only,
+    // which would be advantageous since most selectable are not selected.
+    if (span_all_columns && window->DC.CurrentColumns)
+        PushColumnsBackground();
+    else if (span_all_columns && g.CurrentTable)
+        TablePushBackgroundChannel();
+
+    // We use NoHoldingActiveID on menus so user can click and _hold_ on a menu then drag to browse child entries
+    ImGuiButtonFlags button_flags = 0;
+    if (flags & ImGuiSelectableFlags_NoHoldingActiveID) { button_flags |= ImGuiButtonFlags_NoHoldingActiveId; }
+    if (flags & ImGuiSelectableFlags_SelectOnClick)     { button_flags |= ImGuiButtonFlags_PressedOnClick; }
+    if (flags & ImGuiSelectableFlags_SelectOnRelease)   { button_flags |= ImGuiButtonFlags_PressedOnRelease; }
+    if (flags & ImGuiSelectableFlags_AllowDoubleClick)  { button_flags |= ImGuiButtonFlags_PressedOnClickRelease | ImGuiButtonFlags_PressedOnDoubleClick; }
+    if (flags & ImGuiSelectableFlags_AllowItemOverlap)  { button_flags |= ImGuiButtonFlags_AllowItemOverlap; }
+
+    const bool was_selected = selected;
+    bool hovered, held;
+    bool pressed = ButtonBehavior(bb, id, &hovered, &held, button_flags);
+
+    // Auto-select when moved into
+    // - This will be more fully fleshed in the range-select branch
+    // - This is not exposed as it won't nicely work with some user side handling of shift/control
+    // - We cannot do 'if (g.NavJustMovedToId != id) { selected = false; pressed = was_selected; }' for two reasons
+    //   - (1) it would require focus scope to be set, need exposing PushFocusScope() or equivalent (e.g. BeginSelection() calling PushFocusScope())
+    //   - (2) usage will fail with clipped items
+    //   The multi-select API aim to fix those issues, e.g. may be replaced with a BeginSelection() API.
+    if ((flags & ImGuiSelectableFlags_SelectOnNav) && g.NavJustMovedToId != 0 && g.NavJustMovedToFocusScopeId == window->DC.NavFocusScopeIdCurrent)
+        if (g.NavJustMovedToId == id)
+            selected = pressed = true;
+
+    // Update NavId when clicking or when Hovering (this doesn't happen on most widgets), so navigation can be resumed with gamepad/keyboard
+    if (pressed || (hovered && (flags & ImGuiSelectableFlags_SetNavIdOnHover)))
+    {
+        if (!g.NavDisableMouseHover && g.NavWindow == window && g.NavLayer == window->DC.NavLayerCurrent)
+        {
+            SetNavID(id, window->DC.NavLayerCurrent, window->DC.NavFocusScopeIdCurrent, WindowRectAbsToRel(window, bb)); // (bb == NavRect)
+            g.NavDisableHighlight = true;
+        }
+    }
+    if (pressed)
+        MarkItemEdited(id);
+
+    if (flags & ImGuiSelectableFlags_AllowItemOverlap)
+        SetItemAllowOverlap();
+
+    // In this branch, Selectable() cannot toggle the selection so this will never trigger.
+    if (selected != was_selected) //-V547
+        g.LastItemData.StatusFlags |= ImGuiItemStatusFlags_ToggledSelection;
+
+    // Render
+    if (held && (flags & ImGuiSelectableFlags_DrawHoveredWhenHeld))
+        hovered = true;
+    if (hovered || selected)
+    {
+        const ImU32 col = GetColorU32((held && hovered) ? ImGuiCol_HeaderActive : hovered ? ImGuiCol_HeaderHovered : ImGuiCol_Header);
+        RenderFrame(bb.Min, bb.Max, col, false, 0.0f);
+    }
+    RenderNavHighlight(bb, id, ImGuiNavHighlightFlags_TypeThin | ImGuiNavHighlightFlags_NoRounding);
+
+    if (span_all_columns && window->DC.CurrentColumns)
+        PopColumnsBackground();
+    else if (span_all_columns && g.CurrentTable)
+        TablePopBackgroundChannel();
+
+    RenderTextClipped(text_min, text_max, label, NULL, &label_size, style.SelectableTextAlign, &bb);
+
+    // Automatically close popups
+    if (pressed && (window->Flags & ImGuiWindowFlags_Popup) && !(flags & ImGuiSelectableFlags_DontClosePopups) && !(g.LastItemData.InFlags & ImGuiItemFlags_SelectableDontClosePopup))
+        CloseCurrentPopup();
+
+    if (disabled_item && !disabled_global)
+        EndDisabled();
+
+    IMGUI_TEST_ENGINE_ITEM_INFO(id, label, g.LastItemData.StatusFlags);
+    return pressed; //-V1020
+}
+
+bool ImGui::Selectable(const char* label, bool* p_selected, ImGuiSelectableFlags flags, const ImVec2& size_arg)
+{
+    if (Selectable(label, *p_selected, flags, size_arg))
+    {
+        *p_selected = !*p_selected;
+        return true;
+    }
+    return false;
+}
+
+//-------------------------------------------------------------------------
+// [SECTION] Widgets: ListBox
+//-------------------------------------------------------------------------
+// - BeginListBox()
+// - EndListBox()
+// - ListBox()
+//-------------------------------------------------------------------------
+
+// Tip: To have a list filling the entire window width, use size.x = -FLT_MIN and pass an non-visible label e.g. "##empty"
+// Tip: If your vertical size is calculated from an item count (e.g. 10 * item_height) consider adding a fractional part to facilitate seeing scrolling boundaries (e.g. 10.25 * item_height).
+bool ImGui::BeginListBox(const char* label, const ImVec2& size_arg)
+{
+    ImGuiContext& g = *GImGui;
+    ImGuiWindow* window = GetCurrentWindow();
+    if (window->SkipItems)
+        return false;
+
+    const ImGuiStyle& style = g.Style;
+    const ImGuiID id = GetID(label);
+    const ImVec2 label_size = CalcTextSize(label, NULL, true);
+
+    // Size default to hold ~7.25 items.
+    // Fractional number of items helps seeing that we can scroll down/up without looking at scrollbar.
+    ImVec2 size = ImFloor(CalcItemSize(size_arg, CalcItemWidth(), GetTextLineHeightWithSpacing() * 7.25f + style.FramePadding.y * 2.0f));
+    ImVec2 frame_size = ImVec2(size.x, ImMax(size.y, label_size.y));
+    ImRect frame_bb(window->DC.CursorPos, window->DC.CursorPos + frame_size);
+    ImRect bb(frame_bb.Min, frame_bb.Max + ImVec2(label_size.x > 0.0f ? style.ItemInnerSpacing.x + label_size.x : 0.0f, 0.0f));
+    g.NextItemData.ClearFlags();
+
+    if (!IsRectVisible(bb.Min, bb.Max))
+    {
+        ItemSize(bb.GetSize(), style.FramePadding.y);
+        ItemAdd(bb, 0, &frame_bb);
+        return false;
+    }
+
+    // FIXME-OPT: We could omit the BeginGroup() if label_size.x but would need to omit the EndGroup() as well.
+    BeginGroup();
+    if (label_size.x > 0.0f)
+    {
+        ImVec2 label_pos = ImVec2(frame_bb.Max.x + style.ItemInnerSpacing.x, frame_bb.Min.y + style.FramePadding.y);
+        RenderText(label_pos, label);
+        window->DC.CursorMaxPos = ImMax(window->DC.CursorMaxPos, label_pos + label_size);
+    }
+
+    BeginChildFrame(id, frame_bb.GetSize());
+    return true;
+}
+
+#ifndef IMGUI_DISABLE_OBSOLETE_FUNCTIONS
+// OBSOLETED in 1.81 (from February 2021)
+bool ImGui::ListBoxHeader(const char* label, int items_count, int height_in_items)
+{
+    // If height_in_items == -1, default height is maximum 7.
+    ImGuiContext& g = *GImGui;
+    float height_in_items_f = (height_in_items < 0 ? ImMin(items_count, 7) : height_in_items) + 0.25f;
+    ImVec2 size;
+    size.x = 0.0f;
+    size.y = GetTextLineHeightWithSpacing() * height_in_items_f + g.Style.FramePadding.y * 2.0f;
+    return BeginListBox(label, size);
+}
+#endif
+
+void ImGui::EndListBox()
+{
+    ImGuiContext& g = *GImGui;
+    ImGuiWindow* window = g.CurrentWindow;
+    IM_ASSERT((window->Flags & ImGuiWindowFlags_ChildWindow) && "Mismatched BeginListBox/EndListBox calls. Did you test the return value of BeginListBox?");
+    IM_UNUSED(window);
+
+    EndChildFrame();
+    EndGroup(); // This is only required to be able to do IsItemXXX query on the whole ListBox including label
+}
+
+bool ImGui::ListBox(const char* label, int* current_item, const char* const items[], int items_count, int height_items)
+{
+    const bool value_changed = ListBox(label, current_item, Items_ArrayGetter, (void*)items, items_count, height_items);
+    return value_changed;
+}
+
+// This is merely a helper around BeginListBox(), EndListBox().
+// Considering using those directly to submit custom data or store selection differently.
+bool ImGui::ListBox(const char* label, int* current_item, bool (*items_getter)(void*, int, const char**), void* data, int items_count, int height_in_items)
+{
+    ImGuiContext& g = *GImGui;
+
+    // Calculate size from "height_in_items"
+    if (height_in_items < 0)
+        height_in_items = ImMin(items_count, 7);
+    float height_in_items_f = height_in_items + 0.25f;
+    ImVec2 size(0.0f, ImFloor(GetTextLineHeightWithSpacing() * height_in_items_f + g.Style.FramePadding.y * 2.0f));
+
+    if (!BeginListBox(label, size))
+        return false;
+
+    // Assume all items have even height (= 1 line of text). If you need items of different height,
+    // you can create a custom version of ListBox() in your code without using the clipper.
+    bool value_changed = false;
+    ImGuiListClipper clipper;
+    clipper.Begin(items_count, GetTextLineHeightWithSpacing()); // We know exactly our line height here so we pass it as a minor optimization, but generally you don't need to.
+    while (clipper.Step())
+        for (int i = clipper.DisplayStart; i < clipper.DisplayEnd; i++)
+        {
+            const char* item_text;
+            if (!items_getter(data, i, &item_text))
+                item_text = "*Unknown item*";
+
+            PushID(i);
+            const bool item_selected = (i == *current_item);
+            if (Selectable(item_text, item_selected))
+            {
+                *current_item = i;
+                value_changed = true;
+            }
+            if (item_selected)
+                SetItemDefaultFocus();
+            PopID();
+        }
+    EndListBox();
+
+    if (value_changed)
+        MarkItemEdited(g.LastItemData.ID);
+
+    return value_changed;
+}
+
+//-------------------------------------------------------------------------
+// [SECTION] Widgets: PlotLines, PlotHistogram
+//-------------------------------------------------------------------------
+// - PlotEx() [Internal]
+// - PlotLines()
+// - PlotHistogram()
+//-------------------------------------------------------------------------
+// Plot/Graph widgets are not very good.
+// Consider writing your own, or using a third-party one, see:
+// - ImPlot https://github.com/epezent/implot
+// - others https://github.com/ocornut/imgui/wiki/Useful-Extensions
+//-------------------------------------------------------------------------
+
+int ImGui::PlotEx(ImGuiPlotType plot_type, const char* label, float (*values_getter)(void* data, int idx), void* data, int values_count, int values_offset, const char* overlay_text, float scale_min, float scale_max, ImVec2 frame_size)
+{
+    ImGuiContext& g = *GImGui;
+    ImGuiWindow* window = GetCurrentWindow();
+    if (window->SkipItems)
+        return -1;
+
+    const ImGuiStyle& style = g.Style;
+    const ImGuiID id = window->GetID(label);
+
+    const ImVec2 label_size = CalcTextSize(label, NULL, true);
+    if (frame_size.x == 0.0f)
+        frame_size.x = CalcItemWidth();
+    if (frame_size.y == 0.0f)
+        frame_size.y = label_size.y + (style.FramePadding.y * 2);
+
+    const ImRect frame_bb(window->DC.CursorPos, window->DC.CursorPos + frame_size);
+    const ImRect inner_bb(frame_bb.Min + style.FramePadding, frame_bb.Max - style.FramePadding);
+    const ImRect total_bb(frame_bb.Min, frame_bb.Max + ImVec2(label_size.x > 0.0f ? style.ItemInnerSpacing.x + label_size.x : 0.0f, 0));
+    ItemSize(total_bb, style.FramePadding.y);
+    if (!ItemAdd(total_bb, 0, &frame_bb))
+        return -1;
+    const bool hovered = ItemHoverable(frame_bb, id);
+
+    // Determine scale from values if not specified
+    if (scale_min == FLT_MAX || scale_max == FLT_MAX)
+    {
+        float v_min = FLT_MAX;
+        float v_max = -FLT_MAX;
+        for (int i = 0; i < values_count; i++)
+        {
+            const float v = values_getter(data, i);
+            if (v != v) // Ignore NaN values
+                continue;
+            v_min = ImMin(v_min, v);
+            v_max = ImMax(v_max, v);
+        }
+        if (scale_min == FLT_MAX)
+            scale_min = v_min;
+        if (scale_max == FLT_MAX)
+            scale_max = v_max;
+    }
+
+    RenderFrame(frame_bb.Min, frame_bb.Max, GetColorU32(ImGuiCol_FrameBg), true, style.FrameRounding);
+
+    const int values_count_min = (plot_type == ImGuiPlotType_Lines) ? 2 : 1;
+    int idx_hovered = -1;
+    if (values_count >= values_count_min)
+    {
+        int res_w = ImMin((int)frame_size.x, values_count) + ((plot_type == ImGuiPlotType_Lines) ? -1 : 0);
+        int item_count = values_count + ((plot_type == ImGuiPlotType_Lines) ? -1 : 0);
+
+        // Tooltip on hover
+        if (hovered && inner_bb.Contains(g.IO.MousePos))
+        {
+            const float t = ImClamp((g.IO.MousePos.x - inner_bb.Min.x) / (inner_bb.Max.x - inner_bb.Min.x), 0.0f, 0.9999f);
+            const int v_idx = (int)(t * item_count);
+            IM_ASSERT(v_idx >= 0 && v_idx < values_count);
+
+            const float v0 = values_getter(data, (v_idx + values_offset) % values_count);
+            const float v1 = values_getter(data, (v_idx + 1 + values_offset) % values_count);
+            if (plot_type == ImGuiPlotType_Lines)
+                SetTooltip("%d: %8.4g\n%d: %8.4g", v_idx, v0, v_idx + 1, v1);
+            else if (plot_type == ImGuiPlotType_Histogram)
+                SetTooltip("%d: %8.4g", v_idx, v0);
+            idx_hovered = v_idx;
+        }
+
+        const float t_step = 1.0f / (float)res_w;
+        const float inv_scale = (scale_min == scale_max) ? 0.0f : (1.0f / (scale_max - scale_min));
+
+        float v0 = values_getter(data, (0 + values_offset) % values_count);
+        float t0 = 0.0f;
+        ImVec2 tp0 = ImVec2( t0, 1.0f - ImSaturate((v0 - scale_min) * inv_scale) );                       // Point in the normalized space of our target rectangle
+        float histogram_zero_line_t = (scale_min * scale_max < 0.0f) ? (1 + scale_min * inv_scale) : (scale_min < 0.0f ? 0.0f : 1.0f);   // Where does the zero line stands
+
+        const ImU32 col_base = GetColorU32((plot_type == ImGuiPlotType_Lines) ? ImGuiCol_PlotLines : ImGuiCol_PlotHistogram);
+        const ImU32 col_hovered = GetColorU32((plot_type == ImGuiPlotType_Lines) ? ImGuiCol_PlotLinesHovered : ImGuiCol_PlotHistogramHovered);
+
+        for (int n = 0; n < res_w; n++)
+        {
+            const float t1 = t0 + t_step;
+            const int v1_idx = (int)(t0 * item_count + 0.5f);
+            IM_ASSERT(v1_idx >= 0 && v1_idx < values_count);
+            const float v1 = values_getter(data, (v1_idx + values_offset + 1) % values_count);
+            const ImVec2 tp1 = ImVec2( t1, 1.0f - ImSaturate((v1 - scale_min) * inv_scale) );
+
+            // NB: Draw calls are merged together by the DrawList system. Still, we should render our batch are lower level to save a bit of CPU.
+            ImVec2 pos0 = ImLerp(inner_bb.Min, inner_bb.Max, tp0);
+            ImVec2 pos1 = ImLerp(inner_bb.Min, inner_bb.Max, (plot_type == ImGuiPlotType_Lines) ? tp1 : ImVec2(tp1.x, histogram_zero_line_t));
+            if (plot_type == ImGuiPlotType_Lines)
+            {
+                window->DrawList->AddLine(pos0, pos1, idx_hovered == v1_idx ? col_hovered : col_base);
+            }
+            else if (plot_type == ImGuiPlotType_Histogram)
+            {
+                if (pos1.x >= pos0.x + 2.0f)
+                    pos1.x -= 1.0f;
+                window->DrawList->AddRectFilled(pos0, pos1, idx_hovered == v1_idx ? col_hovered : col_base);
+            }
+
+            t0 = t1;
+            tp0 = tp1;
+        }
+    }
+
+    // Text overlay
+    if (overlay_text)
+        RenderTextClipped(ImVec2(frame_bb.Min.x, frame_bb.Min.y + style.FramePadding.y), frame_bb.Max, overlay_text, NULL, NULL, ImVec2(0.5f, 0.0f));
+
+    if (label_size.x > 0.0f)
+        RenderText(ImVec2(frame_bb.Max.x + style.ItemInnerSpacing.x, inner_bb.Min.y), label);
+
+    // Return hovered index or -1 if none are hovered.
+    // This is currently not exposed in the public API because we need a larger redesign of the whole thing, but in the short-term we are making it available in PlotEx().
+    return idx_hovered;
+}
+
+struct ImGuiPlotArrayGetterData
+{
+    const float* Values;
+    int Stride;
+
+    ImGuiPlotArrayGetterData(const float* values, int stride) { Values = values; Stride = stride; }
+};
+
+static float Plot_ArrayGetter(void* data, int idx)
+{
+    ImGuiPlotArrayGetterData* plot_data = (ImGuiPlotArrayGetterData*)data;
+    const float v = *(const float*)(const void*)((const unsigned char*)plot_data->Values + (size_t)idx * plot_data->Stride);
+    return v;
+}
+
+void ImGui::PlotLines(const char* label, const float* values, int values_count, int values_offset, const char* overlay_text, float scale_min, float scale_max, ImVec2 graph_size, int stride)
+{
+    ImGuiPlotArrayGetterData data(values, stride);
+    PlotEx(ImGuiPlotType_Lines, label, &Plot_ArrayGetter, (void*)&data, values_count, values_offset, overlay_text, scale_min, scale_max, graph_size);
+}
+
+void ImGui::PlotLines(const char* label, float (*values_getter)(void* data, int idx), void* data, int values_count, int values_offset, const char* overlay_text, float scale_min, float scale_max, ImVec2 graph_size)
+{
+    PlotEx(ImGuiPlotType_Lines, label, values_getter, data, values_count, values_offset, overlay_text, scale_min, scale_max, graph_size);
+}
+
+void ImGui::PlotHistogram(const char* label, const float* values, int values_count, int values_offset, const char* overlay_text, float scale_min, float scale_max, ImVec2 graph_size, int stride)
+{
+    ImGuiPlotArrayGetterData data(values, stride);
+    PlotEx(ImGuiPlotType_Histogram, label, &Plot_ArrayGetter, (void*)&data, values_count, values_offset, overlay_text, scale_min, scale_max, graph_size);
+}
+
+void ImGui::PlotHistogram(const char* label, float (*values_getter)(void* data, int idx), void* data, int values_count, int values_offset, const char* overlay_text, float scale_min, float scale_max, ImVec2 graph_size)
+{
+    PlotEx(ImGuiPlotType_Histogram, label, values_getter, data, values_count, values_offset, overlay_text, scale_min, scale_max, graph_size);
+}
+
+//-------------------------------------------------------------------------
+// [SECTION] Widgets: Value helpers
+// Those is not very useful, legacy API.
+//-------------------------------------------------------------------------
+// - Value()
+//-------------------------------------------------------------------------
+
+void ImGui::Value(const char* prefix, bool b)
+{
+    Text("%s: %s", prefix, (b ? "true" : "false"));
+}
+
+void ImGui::Value(const char* prefix, int v)
+{
+    Text("%s: %d", prefix, v);
+}
+
+void ImGui::Value(const char* prefix, unsigned int v)
+{
+    Text("%s: %d", prefix, v);
+}
+
+void ImGui::Value(const char* prefix, float v, const char* float_format)
+{
+    if (float_format)
+    {
+        char fmt[64];
+        ImFormatString(fmt, IM_ARRAYSIZE(fmt), "%%s: %s", float_format);
+        Text(fmt, prefix, v);
+    }
+    else
+    {
+        Text("%s: %.3f", prefix, v);
+    }
+}
+
+//-------------------------------------------------------------------------
+// [SECTION] MenuItem, BeginMenu, EndMenu, etc.
+//-------------------------------------------------------------------------
+// - ImGuiMenuColumns [Internal]
+// - BeginMenuBar()
+// - EndMenuBar()
+// - BeginMainMenuBar()
+// - EndMainMenuBar()
+// - BeginMenu()
+// - EndMenu()
+// - MenuItemEx() [Internal]
+// - MenuItem()
+//-------------------------------------------------------------------------
+
+// Helpers for internal use
+void ImGuiMenuColumns::Update(float spacing, bool window_reappearing)
+{
+    if (window_reappearing)
+        memset(Widths, 0, sizeof(Widths));
+    Spacing = (ImU16)spacing;
+    CalcNextTotalWidth(true);
+    memset(Widths, 0, sizeof(Widths));
+    TotalWidth = NextTotalWidth;
+    NextTotalWidth = 0;
+}
+
+void ImGuiMenuColumns::CalcNextTotalWidth(bool update_offsets)
+{
+    ImU16 offset = 0;
+    bool want_spacing = false;
+    for (int i = 0; i < IM_ARRAYSIZE(Widths); i++)
+    {
+        ImU16 width = Widths[i];
+        if (want_spacing && width > 0)
+            offset += Spacing;
+        want_spacing |= (width > 0);
+        if (update_offsets)
+        {
+            if (i == 1) { OffsetLabel = offset; }
+            if (i == 2) { OffsetShortcut = offset; }
+            if (i == 3) { OffsetMark = offset; }
+        }
+        offset += width;
+    }
+    NextTotalWidth = offset;
+}
+
+float ImGuiMenuColumns::DeclColumns(float w_icon, float w_label, float w_shortcut, float w_mark)
+{
+    Widths[0] = ImMax(Widths[0], (ImU16)w_icon);
+    Widths[1] = ImMax(Widths[1], (ImU16)w_label);
+    Widths[2] = ImMax(Widths[2], (ImU16)w_shortcut);
+    Widths[3] = ImMax(Widths[3], (ImU16)w_mark);
+    CalcNextTotalWidth(false);
+    return (float)ImMax(TotalWidth, NextTotalWidth);
+}
+
+// FIXME: Provided a rectangle perhaps e.g. a BeginMenuBarEx() could be used anywhere..
+// Currently the main responsibility of this function being to setup clip-rect + horizontal layout + menu navigation layer.
+// Ideally we also want this to be responsible for claiming space out of the main window scrolling rectangle, in which case ImGuiWindowFlags_MenuBar will become unnecessary.
+// Then later the same system could be used for multiple menu-bars, scrollbars, side-bars.
+bool ImGui::BeginMenuBar()
+{
+    ImGuiWindow* window = GetCurrentWindow();
+    if (window->SkipItems)
+        return false;
+    if (!(window->Flags & ImGuiWindowFlags_MenuBar))
+        return false;
+
+    IM_ASSERT(!window->DC.MenuBarAppending);
+    BeginGroup(); // Backup position on layer 0 // FIXME: Misleading to use a group for that backup/restore
+    PushID("##menubar");
+
+    // We don't clip with current window clipping rectangle as it is already set to the area below. However we clip with window full rect.
+    // We remove 1 worth of rounding to Max.x to that text in long menus and small windows don't tend to display over the lower-right rounded area, which looks particularly glitchy.
+    ImRect bar_rect = window->MenuBarRect();
+    ImRect clip_rect(IM_ROUND(bar_rect.Min.x + window->WindowBorderSize), IM_ROUND(bar_rect.Min.y + window->WindowBorderSize), IM_ROUND(ImMax(bar_rect.Min.x, bar_rect.Max.x - ImMax(window->WindowRounding, window->WindowBorderSize))), IM_ROUND(bar_rect.Max.y));
+    clip_rect.ClipWith(window->OuterRectClipped);
+    PushClipRect(clip_rect.Min, clip_rect.Max, false);
+
+    // We overwrite CursorMaxPos because BeginGroup sets it to CursorPos (essentially the .EmitItem hack in EndMenuBar() would need something analogous here, maybe a BeginGroupEx() with flags).
+    window->DC.CursorPos = window->DC.CursorMaxPos = ImVec2(bar_rect.Min.x + window->DC.MenuBarOffset.x, bar_rect.Min.y + window->DC.MenuBarOffset.y);
+    window->DC.LayoutType = ImGuiLayoutType_Horizontal;
+    window->DC.IsSameLine = false;
+    window->DC.NavLayerCurrent = ImGuiNavLayer_Menu;
+    window->DC.MenuBarAppending = true;
+    AlignTextToFramePadding();
+    return true;
+}
+
+void ImGui::EndMenuBar()
+{
+    ImGuiWindow* window = GetCurrentWindow();
+    if (window->SkipItems)
+        return;
+    ImGuiContext& g = *GImGui;
+
+    // Nav: When a move request within one of our child menu failed, capture the request to navigate among our siblings.
+    if (NavMoveRequestButNoResultYet() && (g.NavMoveDir == ImGuiDir_Left || g.NavMoveDir == ImGuiDir_Right) && (g.NavWindow->Flags & ImGuiWindowFlags_ChildMenu))
+    {
+        // Try to find out if the request is for one of our child menu
+        ImGuiWindow* nav_earliest_child = g.NavWindow;
+        while (nav_earliest_child->ParentWindow && (nav_earliest_child->ParentWindow->Flags & ImGuiWindowFlags_ChildMenu))
+            nav_earliest_child = nav_earliest_child->ParentWindow;
+        if (nav_earliest_child->ParentWindow == window && nav_earliest_child->DC.ParentLayoutType == ImGuiLayoutType_Horizontal && (g.NavMoveFlags & ImGuiNavMoveFlags_Forwarded) == 0)
+        {
+            // To do so we claim focus back, restore NavId and then process the movement request for yet another frame.
+            // This involve a one-frame delay which isn't very problematic in this situation. We could remove it by scoring in advance for multiple window (probably not worth bothering)
+            const ImGuiNavLayer layer = ImGuiNavLayer_Menu;
+            IM_ASSERT(window->DC.NavLayersActiveMaskNext & (1 << layer)); // Sanity check
+            FocusWindow(window);
+            SetNavID(window->NavLastIds[layer], layer, 0, window->NavRectRel[layer]);
+            g.NavDisableHighlight = true; // Hide highlight for the current frame so we don't see the intermediary selection.
+            g.NavDisableMouseHover = g.NavMousePosDirty = true;
+            NavMoveRequestForward(g.NavMoveDir, g.NavMoveClipDir, g.NavMoveFlags, g.NavMoveScrollFlags); // Repeat
+        }
+    }
+
+    IM_MSVC_WARNING_SUPPRESS(6011); // Static Analysis false positive "warning C6011: Dereferencing NULL pointer 'window'"
+    IM_ASSERT(window->Flags & ImGuiWindowFlags_MenuBar);
+    IM_ASSERT(window->DC.MenuBarAppending);
+    PopClipRect();
+    PopID();
+    window->DC.MenuBarOffset.x = window->DC.CursorPos.x - window->Pos.x; // Save horizontal position so next append can reuse it. This is kinda equivalent to a per-layer CursorPos.
+    g.GroupStack.back().EmitItem = false;
+    EndGroup(); // Restore position on layer 0
+    window->DC.LayoutType = ImGuiLayoutType_Vertical;
+    window->DC.IsSameLine = false;
+    window->DC.NavLayerCurrent = ImGuiNavLayer_Main;
+    window->DC.MenuBarAppending = false;
+}
+
+// Important: calling order matters!
+// FIXME: Somehow overlapping with docking tech.
+// FIXME: The "rect-cut" aspect of this could be formalized into a lower-level helper (rect-cut: https://halt.software/dead-simple-layouts)
+bool ImGui::BeginViewportSideBar(const char* name, ImGuiViewport* viewport_p, ImGuiDir dir, float axis_size, ImGuiWindowFlags window_flags)
+{
+    IM_ASSERT(dir != ImGuiDir_None);
+
+    ImGuiWindow* bar_window = FindWindowByName(name);
+    if (bar_window == NULL || bar_window->BeginCount == 0)
+    {
+        // Calculate and set window size/position
+        ImGuiViewportP* viewport = (ImGuiViewportP*)(void*)(viewport_p ? viewport_p : GetMainViewport());
+        ImRect avail_rect = viewport->GetBuildWorkRect();
+        ImGuiAxis axis = (dir == ImGuiDir_Up || dir == ImGuiDir_Down) ? ImGuiAxis_Y : ImGuiAxis_X;
+        ImVec2 pos = avail_rect.Min;
+        if (dir == ImGuiDir_Right || dir == ImGuiDir_Down)
+            pos[axis] = avail_rect.Max[axis] - axis_size;
+        ImVec2 size = avail_rect.GetSize();
+        size[axis] = axis_size;
+        SetNextWindowPos(pos);
+        SetNextWindowSize(size);
+
+        // Report our size into work area (for next frame) using actual window size
+        if (dir == ImGuiDir_Up || dir == ImGuiDir_Left)
+            viewport->BuildWorkOffsetMin[axis] += axis_size;
+        else if (dir == ImGuiDir_Down || dir == ImGuiDir_Right)
+            viewport->BuildWorkOffsetMax[axis] -= axis_size;
+    }
+
+    window_flags |= ImGuiWindowFlags_NoTitleBar | ImGuiWindowFlags_NoResize | ImGuiWindowFlags_NoMove;
+    PushStyleVar(ImGuiStyleVar_WindowRounding, 0.0f);
+    PushStyleVar(ImGuiStyleVar_WindowMinSize, ImVec2(0, 0)); // Lift normal size constraint
+    bool is_open = Begin(name, NULL, window_flags);
+    PopStyleVar(2);
+
+    return is_open;
+}
+
+bool ImGui::BeginMainMenuBar()
+{
+    ImGuiContext& g = *GImGui;
+    ImGuiViewportP* viewport = (ImGuiViewportP*)(void*)GetMainViewport();
+
+    // For the main menu bar, which cannot be moved, we honor g.Style.DisplaySafeAreaPadding to ensure text can be visible on a TV set.
+    // FIXME: This could be generalized as an opt-in way to clamp window->DC.CursorStartPos to avoid SafeArea?
+    // FIXME: Consider removing support for safe area down the line... it's messy. Nowadays consoles have support for TV calibration in OS settings.
+    g.NextWindowData.MenuBarOffsetMinVal = ImVec2(g.Style.DisplaySafeAreaPadding.x, ImMax(g.Style.DisplaySafeAreaPadding.y - g.Style.FramePadding.y, 0.0f));
+    ImGuiWindowFlags window_flags = ImGuiWindowFlags_NoScrollbar | ImGuiWindowFlags_NoSavedSettings | ImGuiWindowFlags_MenuBar;
+    float height = GetFrameHeight();
+    bool is_open = BeginViewportSideBar("##MainMenuBar", viewport, ImGuiDir_Up, height, window_flags);
+    g.NextWindowData.MenuBarOffsetMinVal = ImVec2(0.0f, 0.0f);
+
+    if (is_open)
+        BeginMenuBar();
+    else
+        End();
+    return is_open;
+}
+
+void ImGui::EndMainMenuBar()
+{
+    EndMenuBar();
+
+    // When the user has left the menu layer (typically: closed menus through activation of an item), we restore focus to the previous window
+    // FIXME: With this strategy we won't be able to restore a NULL focus.
+    ImGuiContext& g = *GImGui;
+    if (g.CurrentWindow == g.NavWindow && g.NavLayer == ImGuiNavLayer_Main && !g.NavAnyRequest)
+        FocusTopMostWindowUnderOne(g.NavWindow, NULL);
+
+    End();
+}
+
+static bool IsRootOfOpenMenuSet()
+{
+    ImGuiContext& g = *GImGui;
+    ImGuiWindow* window = g.CurrentWindow;
+    if ((g.OpenPopupStack.Size <= g.BeginPopupStack.Size) || (window->Flags & ImGuiWindowFlags_ChildMenu))
+        return false;
+
+    // Initially we used 'upper_popup->OpenParentId == window->IDStack.back()' to differentiate multiple menu sets from each others
+    // (e.g. inside menu bar vs loose menu items) based on parent ID.
+    // This would however prevent the use of e.g. PuhsID() user code submitting menus.
+    // Previously this worked between popup and a first child menu because the first child menu always had the _ChildWindow flag,
+    // making  hovering on parent popup possible while first child menu was focused - but this was generally a bug with other side effects.
+    // Instead we don't treat Popup specifically (in order to consistently support menu features in them), maybe the first child menu of a Popup
+    // doesn't have the _ChildWindow flag, and we rely on this IsRootOfOpenMenuSet() check to allow hovering between root window/popup and first child menu.
+    // In the end, lack of ID check made it so we could no longer differentiate between separate menu sets. To compensate for that, we at least check parent window nav layer.
+    // This fixes the most common case of menu opening on hover when moving between window content and menu bar. Multiple different menu sets in same nav layer would still
+    // open on hover, but that should be a lesser problem, because if such menus are close in proximity in window content then it won't feel weird and if they are far apart
+    // it likely won't be a problem anyone runs into.
+    const ImGuiPopupData* upper_popup = &g.OpenPopupStack[g.BeginPopupStack.Size];
+    return (window->DC.NavLayerCurrent == upper_popup->ParentNavLayer && upper_popup->Window && (upper_popup->Window->Flags & ImGuiWindowFlags_ChildMenu));
+}
+
+bool ImGui::BeginMenuEx(const char* label, const char* icon, bool enabled)
+{
+    ImGuiWindow* window = GetCurrentWindow();
+    if (window->SkipItems)
+        return false;
+
+    ImGuiContext& g = *GImGui;
+    const ImGuiStyle& style = g.Style;
+    const ImGuiID id = window->GetID(label);
+    bool menu_is_open = IsPopupOpen(id, ImGuiPopupFlags_None);
+
+    // Sub-menus are ChildWindow so that mouse can be hovering across them (otherwise top-most popup menu would steal focus and not allow hovering on parent menu)
+    // The first menu in a hierarchy isn't so hovering doesn't get across (otherwise e.g. resizing borders with ImGuiButtonFlags_FlattenChildren would react), but top-most BeginMenu() will bypass that limitation.
+    ImGuiWindowFlags flags = ImGuiWindowFlags_ChildMenu | ImGuiWindowFlags_AlwaysAutoResize | ImGuiWindowFlags_NoMove | ImGuiWindowFlags_NoTitleBar | ImGuiWindowFlags_NoSavedSettings | ImGuiWindowFlags_NoNavFocus;
+    if (window->Flags & ImGuiWindowFlags_ChildMenu)
+        flags |= ImGuiWindowFlags_ChildWindow;
+
+    // If a menu with same the ID was already submitted, we will append to it, matching the behavior of Begin().
+    // We are relying on a O(N) search - so O(N log N) over the frame - which seems like the most efficient for the expected small amount of BeginMenu() calls per frame.
+    // If somehow this is ever becoming a problem we can switch to use e.g. ImGuiStorage mapping key to last frame used.
+    if (g.MenusIdSubmittedThisFrame.contains(id))
+    {
+        if (menu_is_open)
+            menu_is_open = BeginPopupEx(id, flags); // menu_is_open can be 'false' when the popup is completely clipped (e.g. zero size display)
+        else
+            g.NextWindowData.ClearFlags();          // we behave like Begin() and need to consume those values
+        return menu_is_open;
+    }
+
+    // Tag menu as used. Next time BeginMenu() with same ID is called it will append to existing menu
+    g.MenusIdSubmittedThisFrame.push_back(id);
+
+    ImVec2 label_size = CalcTextSize(label, NULL, true);
+
+    // Odd hack to allow hovering across menus of a same menu-set (otherwise we wouldn't be able to hover parent without always being a Child window)
+    const bool menuset_is_open = IsRootOfOpenMenuSet();
+    ImGuiWindow* backed_nav_window = g.NavWindow;
+    if (menuset_is_open)
+        g.NavWindow = window;
+
+    // The reference position stored in popup_pos will be used by Begin() to find a suitable position for the child menu,
+    // However the final position is going to be different! It is chosen by FindBestWindowPosForPopup().
+    // e.g. Menus tend to overlap each other horizontally to amplify relative Z-ordering.
+    ImVec2 popup_pos, pos = window->DC.CursorPos;
+    PushID(label);
+    if (!enabled)
+        BeginDisabled();
+    const ImGuiMenuColumns* offsets = &window->DC.MenuColumns;
+    bool pressed;
+    const ImGuiSelectableFlags selectable_flags = ImGuiSelectableFlags_NoHoldingActiveID | ImGuiSelectableFlags_SelectOnClick | ImGuiSelectableFlags_DontClosePopups;
+    if (window->DC.LayoutType == ImGuiLayoutType_Horizontal)
+    {
+        // Menu inside an horizontal menu bar
+        // Selectable extend their highlight by half ItemSpacing in each direction.
+        // For ChildMenu, the popup position will be overwritten by the call to FindBestWindowPosForPopup() in Begin()
+        popup_pos = ImVec2(pos.x - 1.0f - IM_FLOOR(style.ItemSpacing.x * 0.5f), pos.y - style.FramePadding.y + window->MenuBarHeight());
+        window->DC.CursorPos.x += IM_FLOOR(style.ItemSpacing.x * 0.5f);
+        PushStyleVar(ImGuiStyleVar_ItemSpacing, ImVec2(style.ItemSpacing.x * 2.0f, style.ItemSpacing.y));
+        float w = label_size.x;
+        ImVec2 text_pos(window->DC.CursorPos.x + offsets->OffsetLabel, window->DC.CursorPos.y + window->DC.CurrLineTextBaseOffset);
+        pressed = Selectable("", menu_is_open, selectable_flags, ImVec2(w, 0.0f));
+        RenderText(text_pos, label);
+        PopStyleVar();
+        window->DC.CursorPos.x += IM_FLOOR(style.ItemSpacing.x * (-1.0f + 0.5f)); // -1 spacing to compensate the spacing added when Selectable() did a SameLine(). It would also work to call SameLine() ourselves after the PopStyleVar().
+    }
+    else
+    {
+        // Menu inside a regular/vertical menu
+        // (In a typical menu window where all items are BeginMenu() or MenuItem() calls, extra_w will always be 0.0f.
+        //  Only when they are other items sticking out we're going to add spacing, yet only register minimum width into the layout system.
+        popup_pos = ImVec2(pos.x, pos.y - style.WindowPadding.y);
+        float icon_w = (icon && icon[0]) ? CalcTextSize(icon, NULL).x : 0.0f;
+        float checkmark_w = IM_FLOOR(g.FontSize * 1.20f);
+        float min_w = window->DC.MenuColumns.DeclColumns(icon_w, label_size.x, 0.0f, checkmark_w); // Feedback to next frame
+        float extra_w = ImMax(0.0f, GetContentRegionAvail().x - min_w);
+        ImVec2 text_pos(window->DC.CursorPos.x + offsets->OffsetLabel, window->DC.CursorPos.y + window->DC.CurrLineTextBaseOffset);
+        pressed = Selectable("", menu_is_open, selectable_flags | ImGuiSelectableFlags_SpanAvailWidth, ImVec2(min_w, 0.0f));
+        RenderText(text_pos, label);
+        if (icon_w > 0.0f)
+            RenderText(pos + ImVec2(offsets->OffsetIcon, 0.0f), icon);
+        RenderArrow(window->DrawList, pos + ImVec2(offsets->OffsetMark + extra_w + g.FontSize * 0.30f, 0.0f), GetColorU32(ImGuiCol_Text), ImGuiDir_Right);
+    }
+    if (!enabled)
+        EndDisabled();
+
+    const bool hovered = (g.HoveredId == id) && enabled && !g.NavDisableMouseHover;
+    if (menuset_is_open)
+        g.NavWindow = backed_nav_window;
+
+    bool want_open = false;
+    bool want_close = false;
+    if (window->DC.LayoutType == ImGuiLayoutType_Vertical) // (window->Flags & (ImGuiWindowFlags_Popup|ImGuiWindowFlags_ChildMenu))
+    {
+        // Close menu when not hovering it anymore unless we are moving roughly in the direction of the menu
+        // Implement http://bjk5.com/post/44698559168/breaking-down-amazons-mega-dropdown to avoid using timers, so menus feels more reactive.
+        bool moving_toward_child_menu = false;
+        ImGuiWindow* child_menu_window = (g.BeginPopupStack.Size < g.OpenPopupStack.Size && g.OpenPopupStack[g.BeginPopupStack.Size].SourceWindow == window) ? g.OpenPopupStack[g.BeginPopupStack.Size].Window : NULL;
+        if (g.HoveredWindow == window && child_menu_window != NULL && !(window->Flags & ImGuiWindowFlags_MenuBar))
+        {
+            float ref_unit = g.FontSize; // FIXME-DPI
+            ImRect next_window_rect = child_menu_window->Rect();
+            ImVec2 ta = (g.IO.MousePos - g.IO.MouseDelta);
+            ImVec2 tb = (window->Pos.x < child_menu_window->Pos.x) ? next_window_rect.GetTL() : next_window_rect.GetTR();
+            ImVec2 tc = (window->Pos.x < child_menu_window->Pos.x) ? next_window_rect.GetBL() : next_window_rect.GetBR();
+            float extra = ImClamp(ImFabs(ta.x - tb.x) * 0.30f, ref_unit * 0.5f, ref_unit * 2.5f);   // add a bit of extra slack.
+            ta.x += (window->Pos.x < child_menu_window->Pos.x) ? -0.5f : +0.5f;                     // to avoid numerical issues (FIXME: ??)
+            tb.y = ta.y + ImMax((tb.y - extra) - ta.y, -ref_unit * 8.0f);                           // triangle has maximum height to limit the slope and the bias toward large sub-menus
+            tc.y = ta.y + ImMin((tc.y + extra) - ta.y, +ref_unit * 8.0f);
+            moving_toward_child_menu = ImTriangleContainsPoint(ta, tb, tc, g.IO.MousePos);
+            //GetForegroundDrawList()->AddTriangleFilled(ta, tb, tc, moving_toward_other_child_menu ? IM_COL32(0,128,0,128) : IM_COL32(128,0,0,128)); // [DEBUG]
+        }
+
+        // The 'HovereWindow == window' check creates an inconsistency (e.g. moving away from menu slowly tends to hit same window, whereas moving away fast does not)
+        // But we also need to not close the top-menu menu when moving over void. Perhaps we should extend the triangle check to a larger polygon.
+        // (Remember to test this on BeginPopup("A")->BeginMenu("B") sequence which behaves slightly differently as B isn't a Child of A and hovering isn't shared.)
+        if (menu_is_open && !hovered && g.HoveredWindow == window && !moving_toward_child_menu)
+            want_close = true;
+
+        // Open
+        if (!menu_is_open && pressed) // Click/activate to open
+            want_open = true;
+        else if (!menu_is_open && hovered && !moving_toward_child_menu) // Hover to open
+            want_open = true;
+        if (g.NavId == id && g.NavMoveDir == ImGuiDir_Right) // Nav-Right to open
+        {
+            want_open = true;
+            NavMoveRequestCancel();
+        }
+    }
+    else
+    {
+        // Menu bar
+        if (menu_is_open && pressed && menuset_is_open) // Click an open menu again to close it
+        {
+            want_close = true;
+            want_open = menu_is_open = false;
+        }
+        else if (pressed || (hovered && menuset_is_open && !menu_is_open)) // First click to open, then hover to open others
+        {
+            want_open = true;
+        }
+        else if (g.NavId == id && g.NavMoveDir == ImGuiDir_Down) // Nav-Down to open
+        {
+            want_open = true;
+            NavMoveRequestCancel();
+        }
+    }
+
+    if (!enabled) // explicitly close if an open menu becomes disabled, facilitate users code a lot in pattern such as 'if (BeginMenu("options", has_object)) { ..use object.. }'
+        want_close = true;
+    if (want_close && IsPopupOpen(id, ImGuiPopupFlags_None))
+        ClosePopupToLevel(g.BeginPopupStack.Size, true);
+
+    IMGUI_TEST_ENGINE_ITEM_INFO(id, label, g.LastItemData.StatusFlags | ImGuiItemStatusFlags_Openable | (menu_is_open ? ImGuiItemStatusFlags_Opened : 0));
+    PopID();
+
+    if (!menu_is_open && want_open && g.OpenPopupStack.Size > g.BeginPopupStack.Size)
+    {
+        // Don't recycle same menu level in the same frame, first close the other menu and yield for a frame.
+        OpenPopup(label);
+        return false;
+    }
+
+    menu_is_open |= want_open;
+    if (want_open)
+        OpenPopup(label);
+
+    if (menu_is_open)
+    {
+        SetNextWindowPos(popup_pos, ImGuiCond_Always); // Note: this is super misleading! The value will serve as reference for FindBestWindowPosForPopup(), not actual pos.
+        PushStyleVar(ImGuiStyleVar_ChildRounding, style.PopupRounding); // First level will use _PopupRounding, subsequent will use _ChildRounding
+        menu_is_open = BeginPopupEx(id, flags); // menu_is_open can be 'false' when the popup is completely clipped (e.g. zero size display)
+        PopStyleVar();
+    }
+    else
+    {
+        g.NextWindowData.ClearFlags(); // We behave like Begin() and need to consume those values
+    }
+
+    return menu_is_open;
+}
+
+bool ImGui::BeginMenu(const char* label, bool enabled)
+{
+    return BeginMenuEx(label, NULL, enabled);
+}
+
+void ImGui::EndMenu()
+{
+    // Nav: When a left move request _within our child menu_ failed, close ourselves (the _parent_ menu).
+    // A menu doesn't close itself because EndMenuBar() wants the catch the last Left<>Right inputs.
+    // However, it means that with the current code, a BeginMenu() from outside another menu or a menu-bar won't be closable with the Left direction.
+    ImGuiContext& g = *GImGui;
+    ImGuiWindow* window = g.CurrentWindow;
+    if (g.NavMoveDir == ImGuiDir_Left && NavMoveRequestButNoResultYet() && window->DC.LayoutType == ImGuiLayoutType_Vertical)
+        if (g.NavWindow && (g.NavWindow->RootWindowForNav->Flags & ImGuiWindowFlags_Popup) && g.NavWindow->RootWindowForNav->ParentWindow == window)
+        {
+            ClosePopupToLevel(g.BeginPopupStack.Size, true);
+            NavMoveRequestCancel();
+        }
+
+    EndPopup();
+}
+
+bool ImGui::MenuItemEx(const char* label, const char* icon, const char* shortcut, bool selected, bool enabled)
+{
+    ImGuiWindow* window = GetCurrentWindow();
+    if (window->SkipItems)
+        return false;
+
+    ImGuiContext& g = *GImGui;
+    ImGuiStyle& style = g.Style;
+    ImVec2 pos = window->DC.CursorPos;
+    ImVec2 label_size = CalcTextSize(label, NULL, true);
+
+    const bool menuset_is_open = IsRootOfOpenMenuSet();
+    ImGuiWindow* backed_nav_window = g.NavWindow;
+    if (menuset_is_open)
+        g.NavWindow = window;
+
+    // We've been using the equivalent of ImGuiSelectableFlags_SetNavIdOnHover on all Selectable() since early Nav system days (commit 43ee5d73),
+    // but I am unsure whether this should be kept at all. For now moved it to be an opt-in feature used by menus only.
+    bool pressed;
+    PushID(label);
+    if (!enabled)
+        BeginDisabled();
+
+    const ImGuiSelectableFlags selectable_flags = ImGuiSelectableFlags_SelectOnRelease | ImGuiSelectableFlags_SetNavIdOnHover;
+    const ImGuiMenuColumns* offsets = &window->DC.MenuColumns;
+    if (window->DC.LayoutType == ImGuiLayoutType_Horizontal)
+    {
+        // Mimic the exact layout spacing of BeginMenu() to allow MenuItem() inside a menu bar, which is a little misleading but may be useful
+        // Note that in this situation: we don't render the shortcut, we render a highlight instead of the selected tick mark.
+        float w = label_size.x;
+        window->DC.CursorPos.x += IM_FLOOR(style.ItemSpacing.x * 0.5f);
+        ImVec2 text_pos(window->DC.CursorPos.x + offsets->OffsetLabel, window->DC.CursorPos.y + window->DC.CurrLineTextBaseOffset);
+        PushStyleVar(ImGuiStyleVar_ItemSpacing, ImVec2(style.ItemSpacing.x * 2.0f, style.ItemSpacing.y));
+        pressed = Selectable("", selected, selectable_flags, ImVec2(w, 0.0f));
+        PopStyleVar();
+        RenderText(text_pos, label);
+        window->DC.CursorPos.x += IM_FLOOR(style.ItemSpacing.x * (-1.0f + 0.5f)); // -1 spacing to compensate the spacing added when Selectable() did a SameLine(). It would also work to call SameLine() ourselves after the PopStyleVar().
+    }
+    else
+    {
+        // Menu item inside a vertical menu
+        // (In a typical menu window where all items are BeginMenu() or MenuItem() calls, extra_w will always be 0.0f.
+        //  Only when they are other items sticking out we're going to add spacing, yet only register minimum width into the layout system.
+        float icon_w = (icon && icon[0]) ? CalcTextSize(icon, NULL).x : 0.0f;
+        float shortcut_w = (shortcut && shortcut[0]) ? CalcTextSize(shortcut, NULL).x : 0.0f;
+        float checkmark_w = IM_FLOOR(g.FontSize * 1.20f);
+        float min_w = window->DC.MenuColumns.DeclColumns(icon_w, label_size.x, shortcut_w, checkmark_w); // Feedback for next frame
+        float stretch_w = ImMax(0.0f, GetContentRegionAvail().x - min_w);
+        pressed = Selectable("", false, selectable_flags | ImGuiSelectableFlags_SpanAvailWidth, ImVec2(min_w, 0.0f));
+        RenderText(pos + ImVec2(offsets->OffsetLabel, 0.0f), label);
+        if (icon_w > 0.0f)
+            RenderText(pos + ImVec2(offsets->OffsetIcon, 0.0f), icon);
+        if (shortcut_w > 0.0f)
+        {
+            PushStyleColor(ImGuiCol_Text, style.Colors[ImGuiCol_TextDisabled]);
+            RenderText(pos + ImVec2(offsets->OffsetShortcut + stretch_w, 0.0f), shortcut, NULL, false);
+            PopStyleColor();
+        }
+        if (selected)
+            RenderCheckMark(window->DrawList, pos + ImVec2(offsets->OffsetMark + stretch_w + g.FontSize * 0.40f, g.FontSize * 0.134f * 0.5f), GetColorU32(ImGuiCol_Text), g.FontSize  * 0.866f);
+    }
+    IMGUI_TEST_ENGINE_ITEM_INFO(g.LastItemData.ID, label, g.LastItemData.StatusFlags | ImGuiItemStatusFlags_Checkable | (selected ? ImGuiItemStatusFlags_Checked : 0));
+    if (!enabled)
+        EndDisabled();
+    PopID();
+    if (menuset_is_open)
+        g.NavWindow = backed_nav_window;
+
+    return pressed;
+}
+
+bool ImGui::MenuItem(const char* label, const char* shortcut, bool selected, bool enabled)
+{
+    return MenuItemEx(label, NULL, shortcut, selected, enabled);
+}
+
+bool ImGui::MenuItem(const char* label, const char* shortcut, bool* p_selected, bool enabled)
+{
+    if (MenuItemEx(label, NULL, shortcut, p_selected ? *p_selected : false, enabled))
+    {
+        if (p_selected)
+            *p_selected = !*p_selected;
+        return true;
+    }
+    return false;
+}
+
+//-------------------------------------------------------------------------
+// [SECTION] Widgets: BeginTabBar, EndTabBar, etc.
+//-------------------------------------------------------------------------
+// - BeginTabBar()
+// - BeginTabBarEx() [Internal]
+// - EndTabBar()
+// - TabBarLayout() [Internal]
+// - TabBarCalcTabID() [Internal]
+// - TabBarCalcMaxTabWidth() [Internal]
+// - TabBarFindTabById() [Internal]
+// - TabBarRemoveTab() [Internal]
+// - TabBarCloseTab() [Internal]
+// - TabBarScrollClamp() [Internal]
+// - TabBarScrollToTab() [Internal]
+// - TabBarQueueChangeTabOrder() [Internal]
+// - TabBarScrollingButtons() [Internal]
+// - TabBarTabListPopupButton() [Internal]
+//-------------------------------------------------------------------------
+
+struct ImGuiTabBarSection
+{
+    int                 TabCount;               // Number of tabs in this section.
+    float               Width;                  // Sum of width of tabs in this section (after shrinking down)
+    float               Spacing;                // Horizontal spacing at the end of the section.
+
+    ImGuiTabBarSection() { memset(this, 0, sizeof(*this)); }
+};
+
+namespace ImGui
+{
+    static void             TabBarLayout(ImGuiTabBar* tab_bar);
+    static ImU32            TabBarCalcTabID(ImGuiTabBar* tab_bar, const char* label);
+    static float            TabBarCalcMaxTabWidth();
+    static float            TabBarScrollClamp(ImGuiTabBar* tab_bar, float scrolling);
+    static void             TabBarScrollToTab(ImGuiTabBar* tab_bar, ImGuiID tab_id, ImGuiTabBarSection* sections);
+    static ImGuiTabItem*    TabBarScrollingButtons(ImGuiTabBar* tab_bar);
+    static ImGuiTabItem*    TabBarTabListPopupButton(ImGuiTabBar* tab_bar);
+}
+
+ImGuiTabBar::ImGuiTabBar()
+{
+    memset(this, 0, sizeof(*this));
+    CurrFrameVisible = PrevFrameVisible = -1;
+    LastTabItemIdx = -1;
+}
+
+static inline int TabItemGetSectionIdx(const ImGuiTabItem* tab)
+{
+    return (tab->Flags & ImGuiTabItemFlags_Leading) ? 0 : (tab->Flags & ImGuiTabItemFlags_Trailing) ? 2 : 1;
+}
+
+static int IMGUI_CDECL TabItemComparerBySection(const void* lhs, const void* rhs)
+{
+    const ImGuiTabItem* a = (const ImGuiTabItem*)lhs;
+    const ImGuiTabItem* b = (const ImGuiTabItem*)rhs;
+    const int a_section = TabItemGetSectionIdx(a);
+    const int b_section = TabItemGetSectionIdx(b);
+    if (a_section != b_section)
+        return a_section - b_section;
+    return (int)(a->IndexDuringLayout - b->IndexDuringLayout);
+}
+
+static int IMGUI_CDECL TabItemComparerByBeginOrder(const void* lhs, const void* rhs)
+{
+    const ImGuiTabItem* a = (const ImGuiTabItem*)lhs;
+    const ImGuiTabItem* b = (const ImGuiTabItem*)rhs;
+    return (int)(a->BeginOrder - b->BeginOrder);
+}
+
+static ImGuiTabBar* GetTabBarFromTabBarRef(const ImGuiPtrOrIndex& ref)
+{
+    ImGuiContext& g = *GImGui;
+    return ref.Ptr ? (ImGuiTabBar*)ref.Ptr : g.TabBars.GetByIndex(ref.Index);
+}
+
+static ImGuiPtrOrIndex GetTabBarRefFromTabBar(ImGuiTabBar* tab_bar)
+{
+    ImGuiContext& g = *GImGui;
+    if (g.TabBars.Contains(tab_bar))
+        return ImGuiPtrOrIndex(g.TabBars.GetIndex(tab_bar));
+    return ImGuiPtrOrIndex(tab_bar);
+}
+
+bool    ImGui::BeginTabBar(const char* str_id, ImGuiTabBarFlags flags)
+{
+    ImGuiContext& g = *GImGui;
+    ImGuiWindow* window = g.CurrentWindow;
+    if (window->SkipItems)
+        return false;
+
+    ImGuiID id = window->GetID(str_id);
+    ImGuiTabBar* tab_bar = g.TabBars.GetOrAddByKey(id);
+    ImRect tab_bar_bb = ImRect(window->DC.CursorPos.x, window->DC.CursorPos.y, window->WorkRect.Max.x, window->DC.CursorPos.y + g.FontSize + g.Style.FramePadding.y * 2);
+    tab_bar->ID = id;
+    return BeginTabBarEx(tab_bar, tab_bar_bb, flags | ImGuiTabBarFlags_IsFocused);
+}
+
+bool    ImGui::BeginTabBarEx(ImGuiTabBar* tab_bar, const ImRect& tab_bar_bb, ImGuiTabBarFlags flags)
+{
+    ImGuiContext& g = *GImGui;
+    ImGuiWindow* window = g.CurrentWindow;
+    if (window->SkipItems)
+        return false;
+
+    if ((flags & ImGuiTabBarFlags_DockNode) == 0)
+        PushOverrideID(tab_bar->ID);
+
+    // Add to stack
+    g.CurrentTabBarStack.push_back(GetTabBarRefFromTabBar(tab_bar));
+    g.CurrentTabBar = tab_bar;
+
+    // Append with multiple BeginTabBar()/EndTabBar() pairs.
+    tab_bar->BackupCursorPos = window->DC.CursorPos;
+    if (tab_bar->CurrFrameVisible == g.FrameCount)
+    {
+        window->DC.CursorPos = ImVec2(tab_bar->BarRect.Min.x, tab_bar->BarRect.Max.y + tab_bar->ItemSpacingY);
+        tab_bar->BeginCount++;
+        return true;
+    }
+
+    // Ensure correct ordering when toggling ImGuiTabBarFlags_Reorderable flag, or when a new tab was added while being not reorderable
+    if ((flags & ImGuiTabBarFlags_Reorderable) != (tab_bar->Flags & ImGuiTabBarFlags_Reorderable) || (tab_bar->TabsAddedNew && !(flags & ImGuiTabBarFlags_Reorderable)))
+        ImQsort(tab_bar->Tabs.Data, tab_bar->Tabs.Size, sizeof(ImGuiTabItem), TabItemComparerByBeginOrder);
+    tab_bar->TabsAddedNew = false;
+
+    // Flags
+    if ((flags & ImGuiTabBarFlags_FittingPolicyMask_) == 0)
+        flags |= ImGuiTabBarFlags_FittingPolicyDefault_;
+
+    tab_bar->Flags = flags;
+    tab_bar->BarRect = tab_bar_bb;
+    tab_bar->WantLayout = true; // Layout will be done on the first call to ItemTab()
+    tab_bar->PrevFrameVisible = tab_bar->CurrFrameVisible;
+    tab_bar->CurrFrameVisible = g.FrameCount;
+    tab_bar->PrevTabsContentsHeight = tab_bar->CurrTabsContentsHeight;
+    tab_bar->CurrTabsContentsHeight = 0.0f;
+    tab_bar->ItemSpacingY = g.Style.ItemSpacing.y;
+    tab_bar->FramePadding = g.Style.FramePadding;
+    tab_bar->TabsActiveCount = 0;
+    tab_bar->BeginCount = 1;
+
+    // Set cursor pos in a way which only be used in the off-chance the user erroneously submits item before BeginTabItem(): items will overlap
+    window->DC.CursorPos = ImVec2(tab_bar->BarRect.Min.x, tab_bar->BarRect.Max.y + tab_bar->ItemSpacingY);
+
+    // Draw separator
+    const ImU32 col = GetColorU32((flags & ImGuiTabBarFlags_IsFocused) ? ImGuiCol_TabActive : ImGuiCol_TabUnfocusedActive);
+    const float y = tab_bar->BarRect.Max.y - 1.0f;
+    {
+        const float separator_min_x = tab_bar->BarRect.Min.x - IM_FLOOR(window->WindowPadding.x * 0.5f);
+        const float separator_max_x = tab_bar->BarRect.Max.x + IM_FLOOR(window->WindowPadding.x * 0.5f);
+        window->DrawList->AddLine(ImVec2(separator_min_x, y), ImVec2(separator_max_x, y), col, 1.0f);
+    }
+    return true;
+}
+
+void    ImGui::EndTabBar()
+{
+    ImGuiContext& g = *GImGui;
+    ImGuiWindow* window = g.CurrentWindow;
+    if (window->SkipItems)
+        return;
+
+    ImGuiTabBar* tab_bar = g.CurrentTabBar;
+    if (tab_bar == NULL)
+    {
+        IM_ASSERT_USER_ERROR(tab_bar != NULL, "Mismatched BeginTabBar()/EndTabBar()!");
+        return;
+    }
+
+    // Fallback in case no TabItem have been submitted
+    if (tab_bar->WantLayout)
+        TabBarLayout(tab_bar);
+
+    // Restore the last visible height if no tab is visible, this reduce vertical flicker/movement when a tabs gets removed without calling SetTabItemClosed().
+    const bool tab_bar_appearing = (tab_bar->PrevFrameVisible + 1 < g.FrameCount);
+    if (tab_bar->VisibleTabWasSubmitted || tab_bar->VisibleTabId == 0 || tab_bar_appearing)
+    {
+        tab_bar->CurrTabsContentsHeight = ImMax(window->DC.CursorPos.y - tab_bar->BarRect.Max.y, tab_bar->CurrTabsContentsHeight);
+        window->DC.CursorPos.y = tab_bar->BarRect.Max.y + tab_bar->CurrTabsContentsHeight;
+    }
+    else
+    {
+        window->DC.CursorPos.y = tab_bar->BarRect.Max.y + tab_bar->PrevTabsContentsHeight;
+    }
+    if (tab_bar->BeginCount > 1)
+        window->DC.CursorPos = tab_bar->BackupCursorPos;
+
+    if ((tab_bar->Flags & ImGuiTabBarFlags_DockNode) == 0)
+        PopID();
+
+    g.CurrentTabBarStack.pop_back();
+    g.CurrentTabBar = g.CurrentTabBarStack.empty() ? NULL : GetTabBarFromTabBarRef(g.CurrentTabBarStack.back());
+}
+
+// This is called only once a frame before by the first call to ItemTab()
+// The reason we're not calling it in BeginTabBar() is to leave a chance to the user to call the SetTabItemClosed() functions.
+static void ImGui::TabBarLayout(ImGuiTabBar* tab_bar)
+{
+    ImGuiContext& g = *GImGui;
+    tab_bar->WantLayout = false;
+
+    // Garbage collect by compacting list
+    // Detect if we need to sort out tab list (e.g. in rare case where a tab changed section)
+    int tab_dst_n = 0;
+    bool need_sort_by_section = false;
+    ImGuiTabBarSection sections[3]; // Layout sections: Leading, Central, Trailing
+    for (int tab_src_n = 0; tab_src_n < tab_bar->Tabs.Size; tab_src_n++)
+    {
+        ImGuiTabItem* tab = &tab_bar->Tabs[tab_src_n];
+        if (tab->LastFrameVisible < tab_bar->PrevFrameVisible || tab->WantClose)
+        {
+            // Remove tab
+            if (tab_bar->VisibleTabId == tab->ID) { tab_bar->VisibleTabId = 0; }
+            if (tab_bar->SelectedTabId == tab->ID) { tab_bar->SelectedTabId = 0; }
+            if (tab_bar->NextSelectedTabId == tab->ID) { tab_bar->NextSelectedTabId = 0; }
+            continue;
+        }
+        if (tab_dst_n != tab_src_n)
+            tab_bar->Tabs[tab_dst_n] = tab_bar->Tabs[tab_src_n];
+
+        tab = &tab_bar->Tabs[tab_dst_n];
+        tab->IndexDuringLayout = (ImS16)tab_dst_n;
+
+        // We will need sorting if tabs have changed section (e.g. moved from one of Leading/Central/Trailing to another)
+        int curr_tab_section_n = TabItemGetSectionIdx(tab);
+        if (tab_dst_n > 0)
+        {
+            ImGuiTabItem* prev_tab = &tab_bar->Tabs[tab_dst_n - 1];
+            int prev_tab_section_n = TabItemGetSectionIdx(prev_tab);
+            if (curr_tab_section_n == 0 && prev_tab_section_n != 0)
+                need_sort_by_section = true;
+            if (prev_tab_section_n == 2 && curr_tab_section_n != 2)
+                need_sort_by_section = true;
+        }
+
+        sections[curr_tab_section_n].TabCount++;
+        tab_dst_n++;
+    }
+    if (tab_bar->Tabs.Size != tab_dst_n)
+        tab_bar->Tabs.resize(tab_dst_n);
+
+    if (need_sort_by_section)
+        ImQsort(tab_bar->Tabs.Data, tab_bar->Tabs.Size, sizeof(ImGuiTabItem), TabItemComparerBySection);
+
+    // Calculate spacing between sections
+    sections[0].Spacing = sections[0].TabCount > 0 && (sections[1].TabCount + sections[2].TabCount) > 0 ? g.Style.ItemInnerSpacing.x : 0.0f;
+    sections[1].Spacing = sections[1].TabCount > 0 && sections[2].TabCount > 0 ? g.Style.ItemInnerSpacing.x : 0.0f;
+
+    // Setup next selected tab
+    ImGuiID scroll_to_tab_id = 0;
+    if (tab_bar->NextSelectedTabId)
+    {
+        tab_bar->SelectedTabId = tab_bar->NextSelectedTabId;
+        tab_bar->NextSelectedTabId = 0;
+        scroll_to_tab_id = tab_bar->SelectedTabId;
+    }
+
+    // Process order change request (we could probably process it when requested but it's just saner to do it in a single spot).
+    if (tab_bar->ReorderRequestTabId != 0)
+    {
+        if (TabBarProcessReorder(tab_bar))
+            if (tab_bar->ReorderRequestTabId == tab_bar->SelectedTabId)
+                scroll_to_tab_id = tab_bar->ReorderRequestTabId;
+        tab_bar->ReorderRequestTabId = 0;
+    }
+
+    // Tab List Popup (will alter tab_bar->BarRect and therefore the available width!)
+    const bool tab_list_popup_button = (tab_bar->Flags & ImGuiTabBarFlags_TabListPopupButton) != 0;
+    if (tab_list_popup_button)
+        if (ImGuiTabItem* tab_to_select = TabBarTabListPopupButton(tab_bar)) // NB: Will alter BarRect.Min.x!
+            scroll_to_tab_id = tab_bar->SelectedTabId = tab_to_select->ID;
+
+    // Leading/Trailing tabs will be shrink only if central one aren't visible anymore, so layout the shrink data as: leading, trailing, central
+    // (whereas our tabs are stored as: leading, central, trailing)
+    int shrink_buffer_indexes[3] = { 0, sections[0].TabCount + sections[2].TabCount, sections[0].TabCount };
+    g.ShrinkWidthBuffer.resize(tab_bar->Tabs.Size);
+
+    // Compute ideal tabs widths + store them into shrink buffer
+    ImGuiTabItem* most_recently_selected_tab = NULL;
+    int curr_section_n = -1;
+    bool found_selected_tab_id = false;
+    for (int tab_n = 0; tab_n < tab_bar->Tabs.Size; tab_n++)
+    {
+        ImGuiTabItem* tab = &tab_bar->Tabs[tab_n];
+        IM_ASSERT(tab->LastFrameVisible >= tab_bar->PrevFrameVisible);
+
+        if ((most_recently_selected_tab == NULL || most_recently_selected_tab->LastFrameSelected < tab->LastFrameSelected) && !(tab->Flags & ImGuiTabItemFlags_Button))
+            most_recently_selected_tab = tab;
+        if (tab->ID == tab_bar->SelectedTabId)
+            found_selected_tab_id = true;
+        if (scroll_to_tab_id == 0 && g.NavJustMovedToId == tab->ID)
+            scroll_to_tab_id = tab->ID;
+
+        // Refresh tab width immediately, otherwise changes of style e.g. style.FramePadding.x would noticeably lag in the tab bar.
+        // Additionally, when using TabBarAddTab() to manipulate tab bar order we occasionally insert new tabs that don't have a width yet,
+        // and we cannot wait for the next BeginTabItem() call. We cannot compute this width within TabBarAddTab() because font size depends on the active window.
+        const char* tab_name = tab_bar->GetTabName(tab);
+        const bool has_close_button = (tab->Flags & ImGuiTabItemFlags_NoCloseButton) ? false : true;
+        tab->ContentWidth = (tab->RequestedWidth > 0.0f) ? tab->RequestedWidth : TabItemCalcSize(tab_name, has_close_button).x;
+
+        int section_n = TabItemGetSectionIdx(tab);
+        ImGuiTabBarSection* section = &sections[section_n];
+        section->Width += tab->ContentWidth + (section_n == curr_section_n ? g.Style.ItemInnerSpacing.x : 0.0f);
+        curr_section_n = section_n;
+
+        // Store data so we can build an array sorted by width if we need to shrink tabs down
+        IM_MSVC_WARNING_SUPPRESS(6385);
+        ImGuiShrinkWidthItem* shrink_width_item = &g.ShrinkWidthBuffer[shrink_buffer_indexes[section_n]++];
+        shrink_width_item->Index = tab_n;
+        shrink_width_item->Width = shrink_width_item->InitialWidth = tab->ContentWidth;
+
+        IM_ASSERT(tab->ContentWidth > 0.0f);
+        tab->Width = tab->ContentWidth;
+    }
+
+    // Compute total ideal width (used for e.g. auto-resizing a window)
+    tab_bar->WidthAllTabsIdeal = 0.0f;
+    for (int section_n = 0; section_n < 3; section_n++)
+        tab_bar->WidthAllTabsIdeal += sections[section_n].Width + sections[section_n].Spacing;
+
+    // Horizontal scrolling buttons
+    // (note that TabBarScrollButtons() will alter BarRect.Max.x)
+    if ((tab_bar->WidthAllTabsIdeal > tab_bar->BarRect.GetWidth() && tab_bar->Tabs.Size > 1) && !(tab_bar->Flags & ImGuiTabBarFlags_NoTabListScrollingButtons) && (tab_bar->Flags & ImGuiTabBarFlags_FittingPolicyScroll))
+        if (ImGuiTabItem* scroll_and_select_tab = TabBarScrollingButtons(tab_bar))
+        {
+            scroll_to_tab_id = scroll_and_select_tab->ID;
+            if ((scroll_and_select_tab->Flags & ImGuiTabItemFlags_Button) == 0)
+                tab_bar->SelectedTabId = scroll_to_tab_id;
+        }
+
+    // Shrink widths if full tabs don't fit in their allocated space
+    float section_0_w = sections[0].Width + sections[0].Spacing;
+    float section_1_w = sections[1].Width + sections[1].Spacing;
+    float section_2_w = sections[2].Width + sections[2].Spacing;
+    bool central_section_is_visible = (section_0_w + section_2_w) < tab_bar->BarRect.GetWidth();
+    float width_excess;
+    if (central_section_is_visible)
+        width_excess = ImMax(section_1_w - (tab_bar->BarRect.GetWidth() - section_0_w - section_2_w), 0.0f); // Excess used to shrink central section
+    else
+        width_excess = (section_0_w + section_2_w) - tab_bar->BarRect.GetWidth(); // Excess used to shrink leading/trailing section
+
+    // With ImGuiTabBarFlags_FittingPolicyScroll policy, we will only shrink leading/trailing if the central section is not visible anymore
+    if (width_excess > 0.0f && ((tab_bar->Flags & ImGuiTabBarFlags_FittingPolicyResizeDown) || !central_section_is_visible))
+    {
+        int shrink_data_count = (central_section_is_visible ? sections[1].TabCount : sections[0].TabCount + sections[2].TabCount);
+        int shrink_data_offset = (central_section_is_visible ? sections[0].TabCount + sections[2].TabCount : 0);
+        ShrinkWidths(g.ShrinkWidthBuffer.Data + shrink_data_offset, shrink_data_count, width_excess);
+
+        // Apply shrunk values into tabs and sections
+        for (int tab_n = shrink_data_offset; tab_n < shrink_data_offset + shrink_data_count; tab_n++)
+        {
+            ImGuiTabItem* tab = &tab_bar->Tabs[g.ShrinkWidthBuffer[tab_n].Index];
+            float shrinked_width = IM_FLOOR(g.ShrinkWidthBuffer[tab_n].Width);
+            if (shrinked_width < 0.0f)
+                continue;
+
+            int section_n = TabItemGetSectionIdx(tab);
+            sections[section_n].Width -= (tab->Width - shrinked_width);
+            tab->Width = shrinked_width;
+        }
+    }
+
+    // Layout all active tabs
+    int section_tab_index = 0;
+    float tab_offset = 0.0f;
+    tab_bar->WidthAllTabs = 0.0f;
+    for (int section_n = 0; section_n < 3; section_n++)
+    {
+        ImGuiTabBarSection* section = &sections[section_n];
+        if (section_n == 2)
+            tab_offset = ImMin(ImMax(0.0f, tab_bar->BarRect.GetWidth() - section->Width), tab_offset);
+
+        for (int tab_n = 0; tab_n < section->TabCount; tab_n++)
+        {
+            ImGuiTabItem* tab = &tab_bar->Tabs[section_tab_index + tab_n];
+            tab->Offset = tab_offset;
+            tab_offset += tab->Width + (tab_n < section->TabCount - 1 ? g.Style.ItemInnerSpacing.x : 0.0f);
+        }
+        tab_bar->WidthAllTabs += ImMax(section->Width + section->Spacing, 0.0f);
+        tab_offset += section->Spacing;
+        section_tab_index += section->TabCount;
+    }
+
+    // If we have lost the selected tab, select the next most recently active one
+    if (found_selected_tab_id == false)
+        tab_bar->SelectedTabId = 0;
+    if (tab_bar->SelectedTabId == 0 && tab_bar->NextSelectedTabId == 0 && most_recently_selected_tab != NULL)
+        scroll_to_tab_id = tab_bar->SelectedTabId = most_recently_selected_tab->ID;
+
+    // Lock in visible tab
+    tab_bar->VisibleTabId = tab_bar->SelectedTabId;
+    tab_bar->VisibleTabWasSubmitted = false;
+
+    // Update scrolling
+    if (scroll_to_tab_id != 0)
+        TabBarScrollToTab(tab_bar, scroll_to_tab_id, sections);
+    tab_bar->ScrollingAnim = TabBarScrollClamp(tab_bar, tab_bar->ScrollingAnim);
+    tab_bar->ScrollingTarget = TabBarScrollClamp(tab_bar, tab_bar->ScrollingTarget);
+    if (tab_bar->ScrollingAnim != tab_bar->ScrollingTarget)
+    {
+        // Scrolling speed adjust itself so we can always reach our target in 1/3 seconds.
+        // Teleport if we are aiming far off the visible line
+        tab_bar->ScrollingSpeed = ImMax(tab_bar->ScrollingSpeed, 70.0f * g.FontSize);
+        tab_bar->ScrollingSpeed = ImMax(tab_bar->ScrollingSpeed, ImFabs(tab_bar->ScrollingTarget - tab_bar->ScrollingAnim) / 0.3f);
+        const bool teleport = (tab_bar->PrevFrameVisible + 1 < g.FrameCount) || (tab_bar->ScrollingTargetDistToVisibility > 10.0f * g.FontSize);
+        tab_bar->ScrollingAnim = teleport ? tab_bar->ScrollingTarget : ImLinearSweep(tab_bar->ScrollingAnim, tab_bar->ScrollingTarget, g.IO.DeltaTime * tab_bar->ScrollingSpeed);
+    }
+    else
+    {
+        tab_bar->ScrollingSpeed = 0.0f;
+    }
+    tab_bar->ScrollingRectMinX = tab_bar->BarRect.Min.x + sections[0].Width + sections[0].Spacing;
+    tab_bar->ScrollingRectMaxX = tab_bar->BarRect.Max.x - sections[2].Width - sections[1].Spacing;
+
+    // Clear name buffers
+    if ((tab_bar->Flags & ImGuiTabBarFlags_DockNode) == 0)
+        tab_bar->TabsNames.Buf.resize(0);
+
+    // Actual layout in host window (we don't do it in BeginTabBar() so as not to waste an extra frame)
+    ImGuiWindow* window = g.CurrentWindow;
+    window->DC.CursorPos = tab_bar->BarRect.Min;
+    ItemSize(ImVec2(tab_bar->WidthAllTabs, tab_bar->BarRect.GetHeight()), tab_bar->FramePadding.y);
+    window->DC.IdealMaxPos.x = ImMax(window->DC.IdealMaxPos.x, tab_bar->BarRect.Min.x + tab_bar->WidthAllTabsIdeal);
+}
+
+// Dockables uses Name/ID in the global namespace. Non-dockable items use the ID stack.
+static ImU32   ImGui::TabBarCalcTabID(ImGuiTabBar* tab_bar, const char* label)
+{
+    if (tab_bar->Flags & ImGuiTabBarFlags_DockNode)
+    {
+        ImGuiID id = ImHashStr(label);
+        KeepAliveID(id);
+        return id;
+    }
+    else
+    {
+        ImGuiWindow* window = GImGui->CurrentWindow;
+        return window->GetID(label);
+    }
+}
+
+static float ImGui::TabBarCalcMaxTabWidth()
+{
+    ImGuiContext& g = *GImGui;
+    return g.FontSize * 20.0f;
+}
+
+ImGuiTabItem* ImGui::TabBarFindTabByID(ImGuiTabBar* tab_bar, ImGuiID tab_id)
+{
+    if (tab_id != 0)
+        for (int n = 0; n < tab_bar->Tabs.Size; n++)
+            if (tab_bar->Tabs[n].ID == tab_id)
+                return &tab_bar->Tabs[n];
+    return NULL;
+}
+
+// The *TabId fields be already set by the docking system _before_ the actual TabItem was created, so we clear them regardless.
+void ImGui::TabBarRemoveTab(ImGuiTabBar* tab_bar, ImGuiID tab_id)
+{
+    if (ImGuiTabItem* tab = TabBarFindTabByID(tab_bar, tab_id))
+        tab_bar->Tabs.erase(tab);
+    if (tab_bar->VisibleTabId == tab_id)      { tab_bar->VisibleTabId = 0; }
+    if (tab_bar->SelectedTabId == tab_id)     { tab_bar->SelectedTabId = 0; }
+    if (tab_bar->NextSelectedTabId == tab_id) { tab_bar->NextSelectedTabId = 0; }
+}
+
+// Called on manual closure attempt
+void ImGui::TabBarCloseTab(ImGuiTabBar* tab_bar, ImGuiTabItem* tab)
+{
+    IM_ASSERT(!(tab->Flags & ImGuiTabItemFlags_Button));
+    if (!(tab->Flags & ImGuiTabItemFlags_UnsavedDocument))
+    {
+        // This will remove a frame of lag for selecting another tab on closure.
+        // However we don't run it in the case where the 'Unsaved' flag is set, so user gets a chance to fully undo the closure
+        tab->WantClose = true;
+        if (tab_bar->VisibleTabId == tab->ID)
+        {
+            tab->LastFrameVisible = -1;
+            tab_bar->SelectedTabId = tab_bar->NextSelectedTabId = 0;
+        }
+    }
+    else
+    {
+        // Actually select before expecting closure attempt (on an UnsavedDocument tab user is expect to e.g. show a popup)
+        if (tab_bar->VisibleTabId != tab->ID)
+            tab_bar->NextSelectedTabId = tab->ID;
+    }
+}
+
+static float ImGui::TabBarScrollClamp(ImGuiTabBar* tab_bar, float scrolling)
+{
+    scrolling = ImMin(scrolling, tab_bar->WidthAllTabs - tab_bar->BarRect.GetWidth());
+    return ImMax(scrolling, 0.0f);
+}
+
+// Note: we may scroll to tab that are not selected! e.g. using keyboard arrow keys
+static void ImGui::TabBarScrollToTab(ImGuiTabBar* tab_bar, ImGuiID tab_id, ImGuiTabBarSection* sections)
+{
+    ImGuiTabItem* tab = TabBarFindTabByID(tab_bar, tab_id);
+    if (tab == NULL)
+        return;
+    if (tab->Flags & ImGuiTabItemFlags_SectionMask_)
+        return;
+
+    ImGuiContext& g = *GImGui;
+    float margin = g.FontSize * 1.0f; // When to scroll to make Tab N+1 visible always make a bit of N visible to suggest more scrolling area (since we don't have a scrollbar)
+    int order = tab_bar->GetTabOrder(tab);
+
+    // Scrolling happens only in the central section (leading/trailing sections are not scrolling)
+    // FIXME: This is all confusing.
+    float scrollable_width = tab_bar->BarRect.GetWidth() - sections[0].Width - sections[2].Width - sections[1].Spacing;
+
+    // We make all tabs positions all relative Sections[0].Width to make code simpler
+    float tab_x1 = tab->Offset - sections[0].Width + (order > sections[0].TabCount - 1 ? -margin : 0.0f);
+    float tab_x2 = tab->Offset - sections[0].Width + tab->Width + (order + 1 < tab_bar->Tabs.Size - sections[2].TabCount ? margin : 1.0f);
+    tab_bar->ScrollingTargetDistToVisibility = 0.0f;
+    if (tab_bar->ScrollingTarget > tab_x1 || (tab_x2 - tab_x1 >= scrollable_width))
+    {
+        // Scroll to the left
+        tab_bar->ScrollingTargetDistToVisibility = ImMax(tab_bar->ScrollingAnim - tab_x2, 0.0f);
+        tab_bar->ScrollingTarget = tab_x1;
+    }
+    else if (tab_bar->ScrollingTarget < tab_x2 - scrollable_width)
+    {
+        // Scroll to the right
+        tab_bar->ScrollingTargetDistToVisibility = ImMax((tab_x1 - scrollable_width) - tab_bar->ScrollingAnim, 0.0f);
+        tab_bar->ScrollingTarget = tab_x2 - scrollable_width;
+    }
+}
+
+void ImGui::TabBarQueueReorder(ImGuiTabBar* tab_bar, const ImGuiTabItem* tab, int offset)
+{
+    IM_ASSERT(offset != 0);
+    IM_ASSERT(tab_bar->ReorderRequestTabId == 0);
+    tab_bar->ReorderRequestTabId = tab->ID;
+    tab_bar->ReorderRequestOffset = (ImS16)offset;
+}
+
+void ImGui::TabBarQueueReorderFromMousePos(ImGuiTabBar* tab_bar, const ImGuiTabItem* src_tab, ImVec2 mouse_pos)
+{
+    ImGuiContext& g = *GImGui;
+    IM_ASSERT(tab_bar->ReorderRequestTabId == 0);
+    if ((tab_bar->Flags & ImGuiTabBarFlags_Reorderable) == 0)
+        return;
+
+    const bool is_central_section = (src_tab->Flags & ImGuiTabItemFlags_SectionMask_) == 0;
+    const float bar_offset = tab_bar->BarRect.Min.x - (is_central_section ? tab_bar->ScrollingTarget : 0);
+
+    // Count number of contiguous tabs we are crossing over
+    const int dir = (bar_offset + src_tab->Offset) > mouse_pos.x ? -1 : +1;
+    const int src_idx = tab_bar->Tabs.index_from_ptr(src_tab);
+    int dst_idx = src_idx;
+    for (int i = src_idx; i >= 0 && i < tab_bar->Tabs.Size; i += dir)
+    {
+        // Reordered tabs must share the same section
+        const ImGuiTabItem* dst_tab = &tab_bar->Tabs[i];
+        if (dst_tab->Flags & ImGuiTabItemFlags_NoReorder)
+            break;
+        if ((dst_tab->Flags & ImGuiTabItemFlags_SectionMask_) != (src_tab->Flags & ImGuiTabItemFlags_SectionMask_))
+            break;
+        dst_idx = i;
+
+        // Include spacing after tab, so when mouse cursor is between tabs we would not continue checking further tabs that are not hovered.
+        const float x1 = bar_offset + dst_tab->Offset - g.Style.ItemInnerSpacing.x;
+        const float x2 = bar_offset + dst_tab->Offset + dst_tab->Width + g.Style.ItemInnerSpacing.x;
+        //GetForegroundDrawList()->AddRect(ImVec2(x1, tab_bar->BarRect.Min.y), ImVec2(x2, tab_bar->BarRect.Max.y), IM_COL32(255, 0, 0, 255));
+        if ((dir < 0 && mouse_pos.x > x1) || (dir > 0 && mouse_pos.x < x2))
+            break;
+    }
+
+    if (dst_idx != src_idx)
+        TabBarQueueReorder(tab_bar, src_tab, dst_idx - src_idx);
+}
+
+bool ImGui::TabBarProcessReorder(ImGuiTabBar* tab_bar)
+{
+    ImGuiTabItem* tab1 = TabBarFindTabByID(tab_bar, tab_bar->ReorderRequestTabId);
+    if (tab1 == NULL || (tab1->Flags & ImGuiTabItemFlags_NoReorder))
+        return false;
+
+    //IM_ASSERT(tab_bar->Flags & ImGuiTabBarFlags_Reorderable); // <- this may happen when using debug tools
+    int tab2_order = tab_bar->GetTabOrder(tab1) + tab_bar->ReorderRequestOffset;
+    if (tab2_order < 0 || tab2_order >= tab_bar->Tabs.Size)
+        return false;
+
+    // Reordered tabs must share the same section
+    // (Note: TabBarQueueReorderFromMousePos() also has a similar test but since we allow direct calls to TabBarQueueReorder() we do it here too)
+    ImGuiTabItem* tab2 = &tab_bar->Tabs[tab2_order];
+    if (tab2->Flags & ImGuiTabItemFlags_NoReorder)
+        return false;
+    if ((tab1->Flags & ImGuiTabItemFlags_SectionMask_) != (tab2->Flags & ImGuiTabItemFlags_SectionMask_))
+        return false;
+
+    ImGuiTabItem item_tmp = *tab1;
+    ImGuiTabItem* src_tab = (tab_bar->ReorderRequestOffset > 0) ? tab1 + 1 : tab2;
+    ImGuiTabItem* dst_tab = (tab_bar->ReorderRequestOffset > 0) ? tab1 : tab2 + 1;
+    const int move_count = (tab_bar->ReorderRequestOffset > 0) ? tab_bar->ReorderRequestOffset : -tab_bar->ReorderRequestOffset;
+    memmove(dst_tab, src_tab, move_count * sizeof(ImGuiTabItem));
+    *tab2 = item_tmp;
+
+    if (tab_bar->Flags & ImGuiTabBarFlags_SaveSettings)
+        MarkIniSettingsDirty();
+    return true;
+}
+
+static ImGuiTabItem* ImGui::TabBarScrollingButtons(ImGuiTabBar* tab_bar)
+{
+    ImGuiContext& g = *GImGui;
+    ImGuiWindow* window = g.CurrentWindow;
+
+    const ImVec2 arrow_button_size(g.FontSize - 2.0f, g.FontSize + g.Style.FramePadding.y * 2.0f);
+    const float scrolling_buttons_width = arrow_button_size.x * 2.0f;
+
+    const ImVec2 backup_cursor_pos = window->DC.CursorPos;
+    //window->DrawList->AddRect(ImVec2(tab_bar->BarRect.Max.x - scrolling_buttons_width, tab_bar->BarRect.Min.y), ImVec2(tab_bar->BarRect.Max.x, tab_bar->BarRect.Max.y), IM_COL32(255,0,0,255));
+
+    int select_dir = 0;
+    ImVec4 arrow_col = g.Style.Colors[ImGuiCol_Text];
+    arrow_col.w *= 0.5f;
+
+    PushStyleColor(ImGuiCol_Text, arrow_col);
+    PushStyleColor(ImGuiCol_Button, ImVec4(0, 0, 0, 0));
+    const float backup_repeat_delay = g.IO.KeyRepeatDelay;
+    const float backup_repeat_rate = g.IO.KeyRepeatRate;
+    g.IO.KeyRepeatDelay = 0.250f;
+    g.IO.KeyRepeatRate = 0.200f;
+    float x = ImMax(tab_bar->BarRect.Min.x, tab_bar->BarRect.Max.x - scrolling_buttons_width);
+    window->DC.CursorPos = ImVec2(x, tab_bar->BarRect.Min.y);
+    if (ArrowButtonEx("##<", ImGuiDir_Left, arrow_button_size, ImGuiButtonFlags_PressedOnClick | ImGuiButtonFlags_Repeat))
+        select_dir = -1;
+    window->DC.CursorPos = ImVec2(x + arrow_button_size.x, tab_bar->BarRect.Min.y);
+    if (ArrowButtonEx("##>", ImGuiDir_Right, arrow_button_size, ImGuiButtonFlags_PressedOnClick | ImGuiButtonFlags_Repeat))
+        select_dir = +1;
+    PopStyleColor(2);
+    g.IO.KeyRepeatRate = backup_repeat_rate;
+    g.IO.KeyRepeatDelay = backup_repeat_delay;
+
+    ImGuiTabItem* tab_to_scroll_to = NULL;
+    if (select_dir != 0)
+        if (ImGuiTabItem* tab_item = TabBarFindTabByID(tab_bar, tab_bar->SelectedTabId))
+        {
+            int selected_order = tab_bar->GetTabOrder(tab_item);
+            int target_order = selected_order + select_dir;
+
+            // Skip tab item buttons until another tab item is found or end is reached
+            while (tab_to_scroll_to == NULL)
+            {
+                // If we are at the end of the list, still scroll to make our tab visible
+                tab_to_scroll_to = &tab_bar->Tabs[(target_order >= 0 && target_order < tab_bar->Tabs.Size) ? target_order : selected_order];
+
+                // Cross through buttons
+                // (even if first/last item is a button, return it so we can update the scroll)
+                if (tab_to_scroll_to->Flags & ImGuiTabItemFlags_Button)
+                {
+                    target_order += select_dir;
+                    selected_order += select_dir;
+                    tab_to_scroll_to = (target_order < 0 || target_order >= tab_bar->Tabs.Size) ? tab_to_scroll_to : NULL;
+                }
+            }
+        }
+    window->DC.CursorPos = backup_cursor_pos;
+    tab_bar->BarRect.Max.x -= scrolling_buttons_width + 1.0f;
+
+    return tab_to_scroll_to;
+}
+
+static ImGuiTabItem* ImGui::TabBarTabListPopupButton(ImGuiTabBar* tab_bar)
+{
+    ImGuiContext& g = *GImGui;
+    ImGuiWindow* window = g.CurrentWindow;
+
+    // We use g.Style.FramePadding.y to match the square ArrowButton size
+    const float tab_list_popup_button_width = g.FontSize + g.Style.FramePadding.y;
+    const ImVec2 backup_cursor_pos = window->DC.CursorPos;
+    window->DC.CursorPos = ImVec2(tab_bar->BarRect.Min.x - g.Style.FramePadding.y, tab_bar->BarRect.Min.y);
+    tab_bar->BarRect.Min.x += tab_list_popup_button_width;
+
+    ImVec4 arrow_col = g.Style.Colors[ImGuiCol_Text];
+    arrow_col.w *= 0.5f;
+    PushStyleColor(ImGuiCol_Text, arrow_col);
+    PushStyleColor(ImGuiCol_Button, ImVec4(0, 0, 0, 0));
+    bool open = BeginCombo("##v", NULL, ImGuiComboFlags_NoPreview | ImGuiComboFlags_HeightLargest);
+    PopStyleColor(2);
+
+    ImGuiTabItem* tab_to_select = NULL;
+    if (open)
+    {
+        for (int tab_n = 0; tab_n < tab_bar->Tabs.Size; tab_n++)
+        {
+            ImGuiTabItem* tab = &tab_bar->Tabs[tab_n];
+            if (tab->Flags & ImGuiTabItemFlags_Button)
+                continue;
+
+            const char* tab_name = tab_bar->GetTabName(tab);
+            if (Selectable(tab_name, tab_bar->SelectedTabId == tab->ID))
+                tab_to_select = tab;
+        }
+        EndCombo();
+    }
+
+    window->DC.CursorPos = backup_cursor_pos;
+    return tab_to_select;
+}
+
+//-------------------------------------------------------------------------
+// [SECTION] Widgets: BeginTabItem, EndTabItem, etc.
+//-------------------------------------------------------------------------
+// - BeginTabItem()
+// - EndTabItem()
+// - TabItemButton()
+// - TabItemEx() [Internal]
+// - SetTabItemClosed()
+// - TabItemCalcSize() [Internal]
+// - TabItemBackground() [Internal]
+// - TabItemLabelAndCloseButton() [Internal]
+//-------------------------------------------------------------------------
+
+bool    ImGui::BeginTabItem(const char* label, bool* p_open, ImGuiTabItemFlags flags)
+{
+    ImGuiContext& g = *GImGui;
+    ImGuiWindow* window = g.CurrentWindow;
+    if (window->SkipItems)
+        return false;
+
+    ImGuiTabBar* tab_bar = g.CurrentTabBar;
+    if (tab_bar == NULL)
+    {
+        IM_ASSERT_USER_ERROR(tab_bar, "Needs to be called between BeginTabBar() and EndTabBar()!");
+        return false;
+    }
+    IM_ASSERT(!(flags & ImGuiTabItemFlags_Button)); // BeginTabItem() Can't be used with button flags, use TabItemButton() instead!
+
+    bool ret = TabItemEx(tab_bar, label, p_open, flags);
+    if (ret && !(flags & ImGuiTabItemFlags_NoPushId))
+    {
+        ImGuiTabItem* tab = &tab_bar->Tabs[tab_bar->LastTabItemIdx];
+        PushOverrideID(tab->ID); // We already hashed 'label' so push into the ID stack directly instead of doing another hash through PushID(label)
+    }
+    return ret;
+}
+
+void    ImGui::EndTabItem()
+{
+    ImGuiContext& g = *GImGui;
+    ImGuiWindow* window = g.CurrentWindow;
+    if (window->SkipItems)
+        return;
+
+    ImGuiTabBar* tab_bar = g.CurrentTabBar;
+    if (tab_bar == NULL)
+    {
+        IM_ASSERT_USER_ERROR(tab_bar != NULL, "Needs to be called between BeginTabBar() and EndTabBar()!");
+        return;
+    }
+    IM_ASSERT(tab_bar->LastTabItemIdx >= 0);
+    ImGuiTabItem* tab = &tab_bar->Tabs[tab_bar->LastTabItemIdx];
+    if (!(tab->Flags & ImGuiTabItemFlags_NoPushId))
+        PopID();
+}
+
+bool    ImGui::TabItemButton(const char* label, ImGuiTabItemFlags flags)
+{
+    ImGuiContext& g = *GImGui;
+    ImGuiWindow* window = g.CurrentWindow;
+    if (window->SkipItems)
+        return false;
+
+    ImGuiTabBar* tab_bar = g.CurrentTabBar;
+    if (tab_bar == NULL)
+    {
+        IM_ASSERT_USER_ERROR(tab_bar != NULL, "Needs to be called between BeginTabBar() and EndTabBar()!");
+        return false;
+    }
+    return TabItemEx(tab_bar, label, NULL, flags | ImGuiTabItemFlags_Button | ImGuiTabItemFlags_NoReorder);
+}
+
+bool    ImGui::TabItemEx(ImGuiTabBar* tab_bar, const char* label, bool* p_open, ImGuiTabItemFlags flags)
+{
+    // Layout whole tab bar if not already done
+    ImGuiContext& g = *GImGui;
+    if (tab_bar->WantLayout)
+    {
+        ImGuiNextItemData backup_next_item_data = g.NextItemData;
+        TabBarLayout(tab_bar);
+        g.NextItemData = backup_next_item_data;
+    }
+    ImGuiWindow* window = g.CurrentWindow;
+    if (window->SkipItems)
+        return false;
+
+    const ImGuiStyle& style = g.Style;
+    const ImGuiID id = TabBarCalcTabID(tab_bar, label);
+
+    // If the user called us with *p_open == false, we early out and don't render.
+    // We make a call to ItemAdd() so that attempts to use a contextual popup menu with an implicit ID won't use an older ID.
+    IMGUI_TEST_ENGINE_ITEM_INFO(id, label, g.LastItemData.StatusFlags);
+    if (p_open && !*p_open)
+    {
+        ItemAdd(ImRect(), id, NULL, ImGuiItemFlags_NoNav | ImGuiItemFlags_NoNavDefaultFocus);
+        return false;
+    }
+
+    IM_ASSERT(!p_open || !(flags & ImGuiTabItemFlags_Button));
+    IM_ASSERT((flags & (ImGuiTabItemFlags_Leading | ImGuiTabItemFlags_Trailing)) != (ImGuiTabItemFlags_Leading | ImGuiTabItemFlags_Trailing)); // Can't use both Leading and Trailing
+
+    // Store into ImGuiTabItemFlags_NoCloseButton, also honor ImGuiTabItemFlags_NoCloseButton passed by user (although not documented)
+    if (flags & ImGuiTabItemFlags_NoCloseButton)
+        p_open = NULL;
+    else if (p_open == NULL)
+        flags |= ImGuiTabItemFlags_NoCloseButton;
+
+    // Acquire tab data
+    ImGuiTabItem* tab = TabBarFindTabByID(tab_bar, id);
+    bool tab_is_new = false;
+    if (tab == NULL)
+    {
+        tab_bar->Tabs.push_back(ImGuiTabItem());
+        tab = &tab_bar->Tabs.back();
+        tab->ID = id;
+        tab_bar->TabsAddedNew = tab_is_new = true;
+    }
+    tab_bar->LastTabItemIdx = (ImS16)tab_bar->Tabs.index_from_ptr(tab);
+
+    // Calculate tab contents size
+    ImVec2 size = TabItemCalcSize(label, p_open != NULL);
+    tab->RequestedWidth = -1.0f;
+    if (g.NextItemData.Flags & ImGuiNextItemDataFlags_HasWidth)
+        size.x = tab->RequestedWidth = g.NextItemData.Width;
+    if (tab_is_new)
+        tab->Width = size.x;
+    tab->ContentWidth = size.x;
+    tab->BeginOrder = tab_bar->TabsActiveCount++;
+
+    const bool tab_bar_appearing = (tab_bar->PrevFrameVisible + 1 < g.FrameCount);
+    const bool tab_bar_focused = (tab_bar->Flags & ImGuiTabBarFlags_IsFocused) != 0;
+    const bool tab_appearing = (tab->LastFrameVisible + 1 < g.FrameCount);
+    const bool is_tab_button = (flags & ImGuiTabItemFlags_Button) != 0;
+    tab->LastFrameVisible = g.FrameCount;
+    tab->Flags = flags;
+
+    // Append name with zero-terminator
+    tab->NameOffset = (ImS32)tab_bar->TabsNames.size();
+    tab_bar->TabsNames.append(label, label + strlen(label) + 1);
+
+    // Update selected tab
+    if (!is_tab_button)
+    {
+        if (tab_appearing && (tab_bar->Flags & ImGuiTabBarFlags_AutoSelectNewTabs) && tab_bar->NextSelectedTabId == 0)
+            if (!tab_bar_appearing || tab_bar->SelectedTabId == 0)
+                tab_bar->NextSelectedTabId = id;  // New tabs gets activated
+        if ((flags & ImGuiTabItemFlags_SetSelected) && (tab_bar->SelectedTabId != id)) // _SetSelected can only be passed on explicit tab bar
+            tab_bar->NextSelectedTabId = id;
+    }
+
+    // Lock visibility
+    // (Note: tab_contents_visible != tab_selected... because CTRL+TAB operations may preview some tabs without selecting them!)
+    bool tab_contents_visible = (tab_bar->VisibleTabId == id);
+    if (tab_contents_visible)
+        tab_bar->VisibleTabWasSubmitted = true;
+
+    // On the very first frame of a tab bar we let first tab contents be visible to minimize appearing glitches
+    if (!tab_contents_visible && tab_bar->SelectedTabId == 0 && tab_bar_appearing)
+        if (tab_bar->Tabs.Size == 1 && !(tab_bar->Flags & ImGuiTabBarFlags_AutoSelectNewTabs))
+            tab_contents_visible = true;
+
+    // Note that tab_is_new is not necessarily the same as tab_appearing! When a tab bar stops being submitted
+    // and then gets submitted again, the tabs will have 'tab_appearing=true' but 'tab_is_new=false'.
+    if (tab_appearing && (!tab_bar_appearing || tab_is_new))
+    {
+        ItemAdd(ImRect(), id, NULL, ImGuiItemFlags_NoNav | ImGuiItemFlags_NoNavDefaultFocus);
+        if (is_tab_button)
+            return false;
+        return tab_contents_visible;
+    }
+
+    if (tab_bar->SelectedTabId == id)
+        tab->LastFrameSelected = g.FrameCount;
+
+    // Backup current layout position
+    const ImVec2 backup_main_cursor_pos = window->DC.CursorPos;
+
+    // Layout
+    const bool is_central_section = (tab->Flags & ImGuiTabItemFlags_SectionMask_) == 0;
+    size.x = tab->Width;
+    if (is_central_section)
+        window->DC.CursorPos = tab_bar->BarRect.Min + ImVec2(IM_FLOOR(tab->Offset - tab_bar->ScrollingAnim), 0.0f);
+    else
+        window->DC.CursorPos = tab_bar->BarRect.Min + ImVec2(tab->Offset, 0.0f);
+    ImVec2 pos = window->DC.CursorPos;
+    ImRect bb(pos, pos + size);
+
+    // We don't have CPU clipping primitives to clip the CloseButton (until it becomes a texture), so need to add an extra draw call (temporary in the case of vertical animation)
+    const bool want_clip_rect = is_central_section && (bb.Min.x < tab_bar->ScrollingRectMinX || bb.Max.x > tab_bar->ScrollingRectMaxX);
+    if (want_clip_rect)
+        PushClipRect(ImVec2(ImMax(bb.Min.x, tab_bar->ScrollingRectMinX), bb.Min.y - 1), ImVec2(tab_bar->ScrollingRectMaxX, bb.Max.y), true);
+
+    ImVec2 backup_cursor_max_pos = window->DC.CursorMaxPos;
+    ItemSize(bb.GetSize(), style.FramePadding.y);
+    window->DC.CursorMaxPos = backup_cursor_max_pos;
+
+    if (!ItemAdd(bb, id))
+    {
+        if (want_clip_rect)
+            PopClipRect();
+        window->DC.CursorPos = backup_main_cursor_pos;
+        return tab_contents_visible;
+    }
+
+    // Click to Select a tab
+    ImGuiButtonFlags button_flags = ((is_tab_button ? ImGuiButtonFlags_PressedOnClickRelease : ImGuiButtonFlags_PressedOnClick) | ImGuiButtonFlags_AllowItemOverlap);
+    if (g.DragDropActive)
+        button_flags |= ImGuiButtonFlags_PressedOnDragDropHold;
+    bool hovered, held;
+    bool pressed = ButtonBehavior(bb, id, &hovered, &held, button_flags);
+    if (pressed && !is_tab_button)
+        tab_bar->NextSelectedTabId = id;
+
+    // Allow the close button to overlap unless we are dragging (in which case we don't want any overlapping tabs to be hovered)
+    if (g.ActiveId != id)
+        SetItemAllowOverlap();
+
+    // Drag and drop: re-order tabs
+    if (held && !tab_appearing && IsMouseDragging(0))
+    {
+        if (!g.DragDropActive && (tab_bar->Flags & ImGuiTabBarFlags_Reorderable))
+        {
+            // While moving a tab it will jump on the other side of the mouse, so we also test for MouseDelta.x
+            if (g.IO.MouseDelta.x < 0.0f && g.IO.MousePos.x < bb.Min.x)
+            {
+                TabBarQueueReorderFromMousePos(tab_bar, tab, g.IO.MousePos);
+            }
+            else if (g.IO.MouseDelta.x > 0.0f && g.IO.MousePos.x > bb.Max.x)
+            {
+                TabBarQueueReorderFromMousePos(tab_bar, tab, g.IO.MousePos);
+            }
+        }
+    }
+
+#if 0
+    if (hovered && g.HoveredIdNotActiveTimer > TOOLTIP_DELAY && bb.GetWidth() < tab->ContentWidth)
+    {
+        // Enlarge tab display when hovering
+        bb.Max.x = bb.Min.x + IM_FLOOR(ImLerp(bb.GetWidth(), tab->ContentWidth, ImSaturate((g.HoveredIdNotActiveTimer - 0.40f) * 6.0f)));
+        display_draw_list = GetForegroundDrawList(window);
+        TabItemBackground(display_draw_list, bb, flags, GetColorU32(ImGuiCol_TitleBgActive));
+    }
+#endif
+
+    // Render tab shape
+    ImDrawList* display_draw_list = window->DrawList;
+    const ImU32 tab_col = GetColorU32((held || hovered) ? ImGuiCol_TabHovered : tab_contents_visible ? (tab_bar_focused ? ImGuiCol_TabActive : ImGuiCol_TabUnfocusedActive) : (tab_bar_focused ? ImGuiCol_Tab : ImGuiCol_TabUnfocused));
+    TabItemBackground(display_draw_list, bb, flags, tab_col);
+    RenderNavHighlight(bb, id);
+
+    // Select with right mouse button. This is so the common idiom for context menu automatically highlight the current widget.
+    const bool hovered_unblocked = IsItemHovered(ImGuiHoveredFlags_AllowWhenBlockedByPopup);
+    if (hovered_unblocked && (IsMouseClicked(1) || IsMouseReleased(1)))
+        if (!is_tab_button)
+            tab_bar->NextSelectedTabId = id;
+
+    if (tab_bar->Flags & ImGuiTabBarFlags_NoCloseWithMiddleMouseButton)
+        flags |= ImGuiTabItemFlags_NoCloseWithMiddleMouseButton;
+
+    // Render tab label, process close button
+    const ImGuiID close_button_id = p_open ? GetIDWithSeed("#CLOSE", NULL, id) : 0;
+    bool just_closed;
+    bool text_clipped;
+    TabItemLabelAndCloseButton(display_draw_list, bb, flags, tab_bar->FramePadding, label, id, close_button_id, tab_contents_visible, &just_closed, &text_clipped);
+    if (just_closed && p_open != NULL)
+    {
+        *p_open = false;
+        TabBarCloseTab(tab_bar, tab);
+    }
+
+    // Restore main window position so user can draw there
+    if (want_clip_rect)
+        PopClipRect();
+    window->DC.CursorPos = backup_main_cursor_pos;
+
+    // Tooltip
+    // (Won't work over the close button because ItemOverlap systems messes up with HoveredIdTimer-> seems ok)
+    // (We test IsItemHovered() to discard e.g. when another item is active or drag and drop over the tab bar, which g.HoveredId ignores)
+    // FIXME: This is a mess.
+    // FIXME: We may want disabled tab to still display the tooltip?
+    if (text_clipped && g.HoveredId == id && !held && g.HoveredIdNotActiveTimer > g.TooltipSlowDelay && IsItemHovered())
+        if (!(tab_bar->Flags & ImGuiTabBarFlags_NoTooltip) && !(tab->Flags & ImGuiTabItemFlags_NoTooltip))
+            SetTooltip("%.*s", (int)(FindRenderedTextEnd(label) - label), label);
+
+    IM_ASSERT(!is_tab_button || !(tab_bar->SelectedTabId == tab->ID && is_tab_button)); // TabItemButton should not be selected
+    if (is_tab_button)
+        return pressed;
+    return tab_contents_visible;
+}
+
+// [Public] This is call is 100% optional but it allows to remove some one-frame glitches when a tab has been unexpectedly removed.
+// To use it to need to call the function SetTabItemClosed() between BeginTabBar() and EndTabBar().
+// Tabs closed by the close button will automatically be flagged to avoid this issue.
+void    ImGui::SetTabItemClosed(const char* label)
+{
+    ImGuiContext& g = *GImGui;
+    bool is_within_manual_tab_bar = g.CurrentTabBar && !(g.CurrentTabBar->Flags & ImGuiTabBarFlags_DockNode);
+    if (is_within_manual_tab_bar)
+    {
+        ImGuiTabBar* tab_bar = g.CurrentTabBar;
+        ImGuiID tab_id = TabBarCalcTabID(tab_bar, label);
+        if (ImGuiTabItem* tab = TabBarFindTabByID(tab_bar, tab_id))
+            tab->WantClose = true; // Will be processed by next call to TabBarLayout()
+    }
+}
+
+ImVec2 ImGui::TabItemCalcSize(const char* label, bool has_close_button)
+{
+    ImGuiContext& g = *GImGui;
+    ImVec2 label_size = CalcTextSize(label, NULL, true);
+    ImVec2 size = ImVec2(label_size.x + g.Style.FramePadding.x, label_size.y + g.Style.FramePadding.y * 2.0f);
+    if (has_close_button)
+        size.x += g.Style.FramePadding.x + (g.Style.ItemInnerSpacing.x + g.FontSize); // We use Y intentionally to fit the close button circle.
+    else
+        size.x += g.Style.FramePadding.x + 1.0f;
+    return ImVec2(ImMin(size.x, TabBarCalcMaxTabWidth()), size.y);
+}
+
+void ImGui::TabItemBackground(ImDrawList* draw_list, const ImRect& bb, ImGuiTabItemFlags flags, ImU32 col)
+{
+    // While rendering tabs, we trim 1 pixel off the top of our bounding box so they can fit within a regular frame height while looking "detached" from it.
+    ImGuiContext& g = *GImGui;
+    const float width = bb.GetWidth();
+    IM_UNUSED(flags);
+    IM_ASSERT(width > 0.0f);
+    const float rounding = ImMax(0.0f, ImMin((flags & ImGuiTabItemFlags_Button) ? g.Style.FrameRounding : g.Style.TabRounding, width * 0.5f - 1.0f));
+    const float y1 = bb.Min.y + 1.0f;
+    const float y2 = bb.Max.y - 1.0f;
+    draw_list->PathLineTo(ImVec2(bb.Min.x, y2));
+    draw_list->PathArcToFast(ImVec2(bb.Min.x + rounding, y1 + rounding), rounding, 6, 9);
+    draw_list->PathArcToFast(ImVec2(bb.Max.x - rounding, y1 + rounding), rounding, 9, 12);
+    draw_list->PathLineTo(ImVec2(bb.Max.x, y2));
+    draw_list->PathFillConvex(col);
+    if (g.Style.TabBorderSize > 0.0f)
+    {
+        draw_list->PathLineTo(ImVec2(bb.Min.x + 0.5f, y2));
+        draw_list->PathArcToFast(ImVec2(bb.Min.x + rounding + 0.5f, y1 + rounding + 0.5f), rounding, 6, 9);
+        draw_list->PathArcToFast(ImVec2(bb.Max.x - rounding - 0.5f, y1 + rounding + 0.5f), rounding, 9, 12);
+        draw_list->PathLineTo(ImVec2(bb.Max.x - 0.5f, y2));
+        draw_list->PathStroke(GetColorU32(ImGuiCol_Border), 0, g.Style.TabBorderSize);
+    }
+}
+
+// Render text label (with custom clipping) + Unsaved Document marker + Close Button logic
+// We tend to lock style.FramePadding for a given tab-bar, hence the 'frame_padding' parameter.
+void ImGui::TabItemLabelAndCloseButton(ImDrawList* draw_list, const ImRect& bb, ImGuiTabItemFlags flags, ImVec2 frame_padding, const char* label, ImGuiID tab_id, ImGuiID close_button_id, bool is_contents_visible, bool* out_just_closed, bool* out_text_clipped)
+{
+    ImGuiContext& g = *GImGui;
+    ImVec2 label_size = CalcTextSize(label, NULL, true);
+
+    if (out_just_closed)
+        *out_just_closed = false;
+    if (out_text_clipped)
+        *out_text_clipped = false;
+
+    if (bb.GetWidth() <= 1.0f)
+        return;
+
+    // In Style V2 we'll have full override of all colors per state (e.g. focused, selected)
+    // But right now if you want to alter text color of tabs this is what you need to do.
+#if 0
+    const float backup_alpha = g.Style.Alpha;
+    if (!is_contents_visible)
+        g.Style.Alpha *= 0.7f;
+#endif
+
+    // Render text label (with clipping + alpha gradient) + unsaved marker
+    ImRect text_pixel_clip_bb(bb.Min.x + frame_padding.x, bb.Min.y + frame_padding.y, bb.Max.x - frame_padding.x, bb.Max.y);
+    ImRect text_ellipsis_clip_bb = text_pixel_clip_bb;
+
+    // Return clipped state ignoring the close button
+    if (out_text_clipped)
+    {
+        *out_text_clipped = (text_ellipsis_clip_bb.Min.x + label_size.x) > text_pixel_clip_bb.Max.x;
+        //draw_list->AddCircle(text_ellipsis_clip_bb.Min, 3.0f, *out_text_clipped ? IM_COL32(255, 0, 0, 255) : IM_COL32(0, 255, 0, 255));
+    }
+
+    const float button_sz = g.FontSize;
+    const ImVec2 button_pos(ImMax(bb.Min.x, bb.Max.x - frame_padding.x * 2.0f - button_sz), bb.Min.y);
+
+    // Close Button & Unsaved Marker
+    // We are relying on a subtle and confusing distinction between 'hovered' and 'g.HoveredId' which happens because we are using ImGuiButtonFlags_AllowOverlapMode + SetItemAllowOverlap()
+    //  'hovered' will be true when hovering the Tab but NOT when hovering the close button
+    //  'g.HoveredId==id' will be true when hovering the Tab including when hovering the close button
+    //  'g.ActiveId==close_button_id' will be true when we are holding on the close button, in which case both hovered booleans are false
+    bool close_button_pressed = false;
+    bool close_button_visible = false;
+    if (close_button_id != 0)
+        if (is_contents_visible || bb.GetWidth() >= ImMax(button_sz, g.Style.TabMinWidthForCloseButton))
+            if (g.HoveredId == tab_id || g.HoveredId == close_button_id || g.ActiveId == tab_id || g.ActiveId == close_button_id)
+                close_button_visible = true;
+    bool unsaved_marker_visible = (flags & ImGuiTabItemFlags_UnsavedDocument) != 0 && (button_pos.x + button_sz <= bb.Max.x);
+
+    if (close_button_visible)
+    {
+        ImGuiLastItemData last_item_backup = g.LastItemData;
+        PushStyleVar(ImGuiStyleVar_FramePadding, frame_padding);
+        if (CloseButton(close_button_id, button_pos))
+            close_button_pressed = true;
+        PopStyleVar();
+        g.LastItemData = last_item_backup;
+
+        // Close with middle mouse button
+        if (!(flags & ImGuiTabItemFlags_NoCloseWithMiddleMouseButton) && IsMouseClicked(2))
+            close_button_pressed = true;
+    }
+    else if (unsaved_marker_visible)
+    {
+        const ImRect bullet_bb(button_pos, button_pos + ImVec2(button_sz, button_sz) + g.Style.FramePadding * 2.0f);
+        RenderBullet(draw_list, bullet_bb.GetCenter(), GetColorU32(ImGuiCol_Text));
+    }
+
+    // This is all rather complicated
+    // (the main idea is that because the close button only appears on hover, we don't want it to alter the ellipsis position)
+    // FIXME: if FramePadding is noticeably large, ellipsis_max_x will be wrong here (e.g. #3497), maybe for consistency that parameter of RenderTextEllipsis() shouldn't exist..
+    float ellipsis_max_x = close_button_visible ? text_pixel_clip_bb.Max.x : bb.Max.x - 1.0f;
+    if (close_button_visible || unsaved_marker_visible)
+    {
+        text_pixel_clip_bb.Max.x -= close_button_visible ? (button_sz) : (button_sz * 0.80f);
+        text_ellipsis_clip_bb.Max.x -= unsaved_marker_visible ? (button_sz * 0.80f) : 0.0f;
+        ellipsis_max_x = text_pixel_clip_bb.Max.x;
+    }
+    RenderTextEllipsis(draw_list, text_ellipsis_clip_bb.Min, text_ellipsis_clip_bb.Max, text_pixel_clip_bb.Max.x, ellipsis_max_x, label, NULL, &label_size);
+
+#if 0
+    if (!is_contents_visible)
+        g.Style.Alpha = backup_alpha;
+#endif
+
+    if (out_just_closed)
+        *out_just_closed = close_button_pressed;
+}
+
+
+#endif // #ifndef IMGUI_DISABLE
diff --git a/tests/manual/rhi/shared/imgui/imgui/imstb_rectpack.h b/tests/manual/rhi/shared/imgui/imgui/imstb_rectpack.h
new file mode 100644
index 00000000..f6917e7a
--- /dev/null
+++ b/tests/manual/rhi/shared/imgui/imgui/imstb_rectpack.h
@@ -0,0 +1,627 @@
+// [DEAR IMGUI]
+// This is a slightly modified version of stb_rect_pack.h 1.01.
+// Grep for [DEAR IMGUI] to find the changes.
+// 
+// stb_rect_pack.h - v1.01 - public domain - rectangle packing
+// Sean Barrett 2014
+//
+// Useful for e.g. packing rectangular textures into an atlas.
+// Does not do rotation.
+//
+// Before #including,
+//
+//    #define STB_RECT_PACK_IMPLEMENTATION
+//
+// in the file that you want to have the implementation.
+//
+// Not necessarily the awesomest packing method, but better than
+// the totally naive one in stb_truetype (which is primarily what
+// this is meant to replace).
+//
+// Has only had a few tests run, may have issues.
+//
+// More docs to come.
+//
+// No memory allocations; uses qsort() and assert() from stdlib.
+// Can override those by defining STBRP_SORT and STBRP_ASSERT.
+//
+// This library currently uses the Skyline Bottom-Left algorithm.
+//
+// Please note: better rectangle packers are welcome! Please
+// implement them to the same API, but with a different init
+// function.
+//
+// Credits
+//
+//  Library
+//    Sean Barrett
+//  Minor features
+//    Martins Mozeiko
+//    github:IntellectualKitty
+//
+//  Bugfixes / warning fixes
+//    Jeremy Jaussaud
+//    Fabian Giesen
+//
+// Version history:
+//
+//     1.01  (2021-07-11)  always use large rect mode, expose STBRP__MAXVAL in public section
+//     1.00  (2019-02-25)  avoid small space waste; gracefully fail too-wide rectangles
+//     0.99  (2019-02-07)  warning fixes
+//     0.11  (2017-03-03)  return packing success/fail result
+//     0.10  (2016-10-25)  remove cast-away-const to avoid warnings
+//     0.09  (2016-08-27)  fix compiler warnings
+//     0.08  (2015-09-13)  really fix bug with empty rects (w=0 or h=0)
+//     0.07  (2015-09-13)  fix bug with empty rects (w=0 or h=0)
+//     0.06  (2015-04-15)  added STBRP_SORT to allow replacing qsort
+//     0.05:  added STBRP_ASSERT to allow replacing assert
+//     0.04:  fixed minor bug in STBRP_LARGE_RECTS support
+//     0.01:  initial release
+//
+// LICENSE
+//
+//   See end of file for license information.
+
+//////////////////////////////////////////////////////////////////////////////
+//
+//       INCLUDE SECTION
+//
+
+#ifndef STB_INCLUDE_STB_RECT_PACK_H
+#define STB_INCLUDE_STB_RECT_PACK_H
+
+#define STB_RECT_PACK_VERSION  1
+
+#ifdef STBRP_STATIC
+#define STBRP_DEF static
+#else
+#define STBRP_DEF extern
+#endif
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+typedef struct stbrp_context stbrp_context;
+typedef struct stbrp_node    stbrp_node;
+typedef struct stbrp_rect    stbrp_rect;
+
+typedef int            stbrp_coord;
+
+#define STBRP__MAXVAL  0x7fffffff
+// Mostly for internal use, but this is the maximum supported coordinate value.
+
+STBRP_DEF int stbrp_pack_rects (stbrp_context *context, stbrp_rect *rects, int num_rects);
+// Assign packed locations to rectangles. The rectangles are of type
+// 'stbrp_rect' defined below, stored in the array 'rects', and there
+// are 'num_rects' many of them.
+//
+// Rectangles which are successfully packed have the 'was_packed' flag
+// set to a non-zero value and 'x' and 'y' store the minimum location
+// on each axis (i.e. bottom-left in cartesian coordinates, top-left
+// if you imagine y increasing downwards). Rectangles which do not fit
+// have the 'was_packed' flag set to 0.
+//
+// You should not try to access the 'rects' array from another thread
+// while this function is running, as the function temporarily reorders
+// the array while it executes.
+//
+// To pack into another rectangle, you need to call stbrp_init_target
+// again. To continue packing into the same rectangle, you can call
+// this function again. Calling this multiple times with multiple rect
+// arrays will probably produce worse packing results than calling it
+// a single time with the full rectangle array, but the option is
+// available.
+//
+// The function returns 1 if all of the rectangles were successfully
+// packed and 0 otherwise.
+
+struct stbrp_rect
+{
+   // reserved for your use:
+   int            id;
+
+   // input:
+   stbrp_coord    w, h;
+
+   // output:
+   stbrp_coord    x, y;
+   int            was_packed;  // non-zero if valid packing
+
+}; // 16 bytes, nominally
+
+
+STBRP_DEF void stbrp_init_target (stbrp_context *context, int width, int height, stbrp_node *nodes, int num_nodes);
+// Initialize a rectangle packer to:
+//    pack a rectangle that is 'width' by 'height' in dimensions
+//    using temporary storage provided by the array 'nodes', which is 'num_nodes' long
+//
+// You must call this function every time you start packing into a new target.
+//
+// There is no "shutdown" function. The 'nodes' memory must stay valid for
+// the following stbrp_pack_rects() call (or calls), but can be freed after
+// the call (or calls) finish.
+//
+// Note: to guarantee best results, either:
+//       1. make sure 'num_nodes' >= 'width'
+//   or  2. call stbrp_allow_out_of_mem() defined below with 'allow_out_of_mem = 1'
+//
+// If you don't do either of the above things, widths will be quantized to multiples
+// of small integers to guarantee the algorithm doesn't run out of temporary storage.
+//
+// If you do #2, then the non-quantized algorithm will be used, but the algorithm
+// may run out of temporary storage and be unable to pack some rectangles.
+
+STBRP_DEF void stbrp_setup_allow_out_of_mem (stbrp_context *context, int allow_out_of_mem);
+// Optionally call this function after init but before doing any packing to
+// change the handling of the out-of-temp-memory scenario, described above.
+// If you call init again, this will be reset to the default (false).
+
+
+STBRP_DEF void stbrp_setup_heuristic (stbrp_context *context, int heuristic);
+// Optionally select which packing heuristic the library should use. Different
+// heuristics will produce better/worse results for different data sets.
+// If you call init again, this will be reset to the default.
+
+enum
+{
+   STBRP_HEURISTIC_Skyline_default=0,
+   STBRP_HEURISTIC_Skyline_BL_sortHeight = STBRP_HEURISTIC_Skyline_default,
+   STBRP_HEURISTIC_Skyline_BF_sortHeight
+};
+
+
+//////////////////////////////////////////////////////////////////////////////
+//
+// the details of the following structures don't matter to you, but they must
+// be visible so you can handle the memory allocations for them
+
+struct stbrp_node
+{
+   stbrp_coord  x,y;
+   stbrp_node  *next;
+};
+
+struct stbrp_context
+{
+   int width;
+   int height;
+   int align;
+   int init_mode;
+   int heuristic;
+   int num_nodes;
+   stbrp_node *active_head;
+   stbrp_node *free_head;
+   stbrp_node extra[2]; // we allocate two extra nodes so optimal user-node-count is 'width' not 'width+2'
+};
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif
+
+//////////////////////////////////////////////////////////////////////////////
+//
+//     IMPLEMENTATION SECTION
+//
+
+#ifdef STB_RECT_PACK_IMPLEMENTATION
+#ifndef STBRP_SORT
+#include <stdlib.h>
+#define STBRP_SORT qsort
+#endif
+
+#ifndef STBRP_ASSERT
+#include <assert.h>
+#define STBRP_ASSERT assert
+#endif
+
+#ifdef _MSC_VER
+#define STBRP__NOTUSED(v)  (void)(v)
+#define STBRP__CDECL       __cdecl
+#else
+#define STBRP__NOTUSED(v)  (void)sizeof(v)
+#define STBRP__CDECL
+#endif
+
+enum
+{
+   STBRP__INIT_skyline = 1
+};
+
+STBRP_DEF void stbrp_setup_heuristic(stbrp_context *context, int heuristic)
+{
+   switch (context->init_mode) {
+      case STBRP__INIT_skyline:
+         STBRP_ASSERT(heuristic == STBRP_HEURISTIC_Skyline_BL_sortHeight || heuristic == STBRP_HEURISTIC_Skyline_BF_sortHeight);
+         context->heuristic = heuristic;
+         break;
+      default:
+         STBRP_ASSERT(0);
+   }
+}
+
+STBRP_DEF void stbrp_setup_allow_out_of_mem(stbrp_context *context, int allow_out_of_mem)
+{
+   if (allow_out_of_mem)
+      // if it's ok to run out of memory, then don't bother aligning them;
+      // this gives better packing, but may fail due to OOM (even though
+      // the rectangles easily fit). @TODO a smarter approach would be to only
+      // quantize once we've hit OOM, then we could get rid of this parameter.
+      context->align = 1;
+   else {
+      // if it's not ok to run out of memory, then quantize the widths
+      // so that num_nodes is always enough nodes.
+      //
+      // I.e. num_nodes * align >= width
+      //                  align >= width / num_nodes
+      //                  align = ceil(width/num_nodes)
+
+      context->align = (context->width + context->num_nodes-1) / context->num_nodes;
+   }
+}
+
+STBRP_DEF void stbrp_init_target(stbrp_context *context, int width, int height, stbrp_node *nodes, int num_nodes)
+{
+   int i;
+
+   for (i=0; i < num_nodes-1; ++i)
+      nodes[i].next = &nodes[i+1];
+   nodes[i].next = NULL;
+   context->init_mode = STBRP__INIT_skyline;
+   context->heuristic = STBRP_HEURISTIC_Skyline_default;
+   context->free_head = &nodes[0];
+   context->active_head = &context->extra[0];
+   context->width = width;
+   context->height = height;
+   context->num_nodes = num_nodes;
+   stbrp_setup_allow_out_of_mem(context, 0);
+
+   // node 0 is the full width, node 1 is the sentinel (lets us not store width explicitly)
+   context->extra[0].x = 0;
+   context->extra[0].y = 0;
+   context->extra[0].next = &context->extra[1];
+   context->extra[1].x = (stbrp_coord) width;
+   context->extra[1].y = (1<<30);
+   context->extra[1].next = NULL;
+}
+
+// find minimum y position if it starts at x1
+static int stbrp__skyline_find_min_y(stbrp_context *c, stbrp_node *first, int x0, int width, int *pwaste)
+{
+   stbrp_node *node = first;
+   int x1 = x0 + width;
+   int min_y, visited_width, waste_area;
+
+   STBRP__NOTUSED(c);
+
+   STBRP_ASSERT(first->x <= x0);
+
+   #if 0
+   // skip in case we're past the node
+   while (node->next->x <= x0)
+      ++node;
+   #else
+   STBRP_ASSERT(node->next->x > x0); // we ended up handling this in the caller for efficiency
+   #endif
+
+   STBRP_ASSERT(node->x <= x0);
+
+   min_y = 0;
+   waste_area = 0;
+   visited_width = 0;
+   while (node->x < x1) {
+      if (node->y > min_y) {
+         // raise min_y higher.
+         // we've accounted for all waste up to min_y,
+         // but we'll now add more waste for everything we've visted
+         waste_area += visited_width * (node->y - min_y);
+         min_y = node->y;
+         // the first time through, visited_width might be reduced
+         if (node->x < x0)
+            visited_width += node->next->x - x0;
+         else
+            visited_width += node->next->x - node->x;
+      } else {
+         // add waste area
+         int under_width = node->next->x - node->x;
+         if (under_width + visited_width > width)
+            under_width = width - visited_width;
+         waste_area += under_width * (min_y - node->y);
+         visited_width += under_width;
+      }
+      node = node->next;
+   }
+
+   *pwaste = waste_area;
+   return min_y;
+}
+
+typedef struct
+{
+   int x,y;
+   stbrp_node **prev_link;
+} stbrp__findresult;
+
+static stbrp__findresult stbrp__skyline_find_best_pos(stbrp_context *c, int width, int height)
+{
+   int best_waste = (1<<30), best_x, best_y = (1 << 30);
+   stbrp__findresult fr;
+   stbrp_node **prev, *node, *tail, **best = NULL;
+
+   // align to multiple of c->align
+   width = (width + c->align - 1);
+   width -= width % c->align;
+   STBRP_ASSERT(width % c->align == 0);
+
+   // if it can't possibly fit, bail immediately
+   if (width > c->width || height > c->height) {
+      fr.prev_link = NULL;
+      fr.x = fr.y = 0;
+      return fr;
+   }
+
+   node = c->active_head;
+   prev = &c->active_head;
+   while (node->x + width <= c->width) {
+      int y,waste;
+      y = stbrp__skyline_find_min_y(c, node, node->x, width, &waste);
+      if (c->heuristic == STBRP_HEURISTIC_Skyline_BL_sortHeight) { // actually just want to test BL
+         // bottom left
+         if (y < best_y) {
+            best_y = y;
+            best = prev;
+         }
+      } else {
+         // best-fit
+         if (y + height <= c->height) {
+            // can only use it if it first vertically
+            if (y < best_y || (y == best_y && waste < best_waste)) {
+               best_y = y;
+               best_waste = waste;
+               best = prev;
+            }
+         }
+      }
+      prev = &node->next;
+      node = node->next;
+   }
+
+   best_x = (best == NULL) ? 0 : (*best)->x;
+
+   // if doing best-fit (BF), we also have to try aligning right edge to each node position
+   //
+   // e.g, if fitting
+   //
+   //     ____________________
+   //    |____________________|
+   //
+   //            into
+   //
+   //   |                         |
+   //   |             ____________|
+   //   |____________|
+   //
+   // then right-aligned reduces waste, but bottom-left BL is always chooses left-aligned
+   //
+   // This makes BF take about 2x the time
+
+   if (c->heuristic == STBRP_HEURISTIC_Skyline_BF_sortHeight) {
+      tail = c->active_head;
+      node = c->active_head;
+      prev = &c->active_head;
+      // find first node that's admissible
+      while (tail->x < width)
+         tail = tail->next;
+      while (tail) {
+         int xpos = tail->x - width;
+         int y,waste;
+         STBRP_ASSERT(xpos >= 0);
+         // find the left position that matches this
+         while (node->next->x <= xpos) {
+            prev = &node->next;
+            node = node->next;
+         }
+         STBRP_ASSERT(node->next->x > xpos && node->x <= xpos);
+         y = stbrp__skyline_find_min_y(c, node, xpos, width, &waste);
+         if (y + height <= c->height) {
+            if (y <= best_y) {
+               if (y < best_y || waste < best_waste || (waste==best_waste && xpos < best_x)) {
+                  best_x = xpos;
+                  //STBRP_ASSERT(y <= best_y); [DEAR IMGUI]
+                  best_y = y;
+                  best_waste = waste;
+                  best = prev;
+               }
+            }
+         }
+         tail = tail->next;
+      }
+   }
+
+   fr.prev_link = best;
+   fr.x = best_x;
+   fr.y = best_y;
+   return fr;
+}
+
+static stbrp__findresult stbrp__skyline_pack_rectangle(stbrp_context *context, int width, int height)
+{
+   // find best position according to heuristic
+   stbrp__findresult res = stbrp__skyline_find_best_pos(context, width, height);
+   stbrp_node *node, *cur;
+
+   // bail if:
+   //    1. it failed
+   //    2. the best node doesn't fit (we don't always check this)
+   //    3. we're out of memory
+   if (res.prev_link == NULL || res.y + height > context->height || context->free_head == NULL) {
+      res.prev_link = NULL;
+      return res;
+   }
+
+   // on success, create new node
+   node = context->free_head;
+   node->x = (stbrp_coord) res.x;
+   node->y = (stbrp_coord) (res.y + height);
+
+   context->free_head = node->next;
+
+   // insert the new node into the right starting point, and
+   // let 'cur' point to the remaining nodes needing to be
+   // stiched back in
+
+   cur = *res.prev_link;
+   if (cur->x < res.x) {
+      // preserve the existing one, so start testing with the next one
+      stbrp_node *next = cur->next;
+      cur->next = node;
+      cur = next;
+   } else {
+      *res.prev_link = node;
+   }
+
+   // from here, traverse cur and free the nodes, until we get to one
+   // that shouldn't be freed
+   while (cur->next && cur->next->x <= res.x + width) {
+      stbrp_node *next = cur->next;
+      // move the current node to the free list
+      cur->next = context->free_head;
+      context->free_head = cur;
+      cur = next;
+   }
+
+   // stitch the list back in
+   node->next = cur;
+
+   if (cur->x < res.x + width)
+      cur->x = (stbrp_coord) (res.x + width);
+
+#ifdef _DEBUG
+   cur = context->active_head;
+   while (cur->x < context->width) {
+      STBRP_ASSERT(cur->x < cur->next->x);
+      cur = cur->next;
+   }
+   STBRP_ASSERT(cur->next == NULL);
+
+   {
+      int count=0;
+      cur = context->active_head;
+      while (cur) {
+         cur = cur->next;
+         ++count;
+      }
+      cur = context->free_head;
+      while (cur) {
+         cur = cur->next;
+         ++count;
+      }
+      STBRP_ASSERT(count == context->num_nodes+2);
+   }
+#endif
+
+   return res;
+}
+
+static int STBRP__CDECL rect_height_compare(const void *a, const void *b)
+{
+   const stbrp_rect *p = (const stbrp_rect *) a;
+   const stbrp_rect *q = (const stbrp_rect *) b;
+   if (p->h > q->h)
+      return -1;
+   if (p->h < q->h)
+      return  1;
+   return (p->w > q->w) ? -1 : (p->w < q->w);
+}
+
+static int STBRP__CDECL rect_original_order(const void *a, const void *b)
+{
+   const stbrp_rect *p = (const stbrp_rect *) a;
+   const stbrp_rect *q = (const stbrp_rect *) b;
+   return (p->was_packed < q->was_packed) ? -1 : (p->was_packed > q->was_packed);
+}
+
+STBRP_DEF int stbrp_pack_rects(stbrp_context *context, stbrp_rect *rects, int num_rects)
+{
+   int i, all_rects_packed = 1;
+
+   // we use the 'was_packed' field internally to allow sorting/unsorting
+   for (i=0; i < num_rects; ++i) {
+      rects[i].was_packed = i;
+   }
+
+   // sort according to heuristic
+   STBRP_SORT(rects, num_rects, sizeof(rects[0]), rect_height_compare);
+
+   for (i=0; i < num_rects; ++i) {
+      if (rects[i].w == 0 || rects[i].h == 0) {
+         rects[i].x = rects[i].y = 0;  // empty rect needs no space
+      } else {
+         stbrp__findresult fr = stbrp__skyline_pack_rectangle(context, rects[i].w, rects[i].h);
+         if (fr.prev_link) {
+            rects[i].x = (stbrp_coord) fr.x;
+            rects[i].y = (stbrp_coord) fr.y;
+         } else {
+            rects[i].x = rects[i].y = STBRP__MAXVAL;
+         }
+      }
+   }
+
+   // unsort
+   STBRP_SORT(rects, num_rects, sizeof(rects[0]), rect_original_order);
+
+   // set was_packed flags and all_rects_packed status
+   for (i=0; i < num_rects; ++i) {
+      rects[i].was_packed = !(rects[i].x == STBRP__MAXVAL && rects[i].y == STBRP__MAXVAL);
+      if (!rects[i].was_packed)
+         all_rects_packed = 0;
+   }
+
+   // return the all_rects_packed status
+   return all_rects_packed;
+}
+#endif
+
+/*
+------------------------------------------------------------------------------
+This software is available under 2 licenses -- choose whichever you prefer.
+------------------------------------------------------------------------------
+ALTERNATIVE A - MIT License
+Copyright (c) 2017 Sean Barrett
+Permission is hereby granted, free of charge, to any person obtaining a copy of
+this software and associated documentation files (the "Software"), to deal in
+the Software without restriction, including without limitation the rights to
+use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
+of the Software, and to permit persons to whom the Software is furnished to do
+so, subject to the following conditions:
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
+------------------------------------------------------------------------------
+ALTERNATIVE B - Public Domain (www.unlicense.org)
+This is free and unencumbered software released into the public domain.
+Anyone is free to copy, modify, publish, use, compile, sell, or distribute this
+software, either in source code form or as a compiled binary, for any purpose,
+commercial or non-commercial, and by any means.
+In jurisdictions that recognize copyright laws, the author or authors of this
+software dedicate any and all copyright interest in the software to the public
+domain. We make this dedication for the benefit of the public at large and to
+the detriment of our heirs and successors. We intend this dedication to be an
+overt act of relinquishment in perpetuity of all present and future rights to
+this software under copyright law.
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+------------------------------------------------------------------------------
+*/
diff --git a/tests/manual/rhi/shared/imgui/imgui/imstb_textedit.h b/tests/manual/rhi/shared/imgui/imgui/imstb_textedit.h
new file mode 100644
index 00000000..75a159da
--- /dev/null
+++ b/tests/manual/rhi/shared/imgui/imgui/imstb_textedit.h
@@ -0,0 +1,1447 @@
+// [DEAR IMGUI]
+// This is a slightly modified version of stb_textedit.h 1.14.
+// Those changes would need to be pushed into nothings/stb:
+// - Fix in stb_textedit_discard_redo (see https://github.com/nothings/stb/issues/321)
+// Grep for [DEAR IMGUI] to find the changes.
+
+// stb_textedit.h - v1.14  - public domain - Sean Barrett
+// Development of this library was sponsored by RAD Game Tools
+//
+// This C header file implements the guts of a multi-line text-editing
+// widget; you implement display, word-wrapping, and low-level string
+// insertion/deletion, and stb_textedit will map user inputs into
+// insertions & deletions, plus updates to the cursor position,
+// selection state, and undo state.
+//
+// It is intended for use in games and other systems that need to build
+// their own custom widgets and which do not have heavy text-editing
+// requirements (this library is not recommended for use for editing large
+// texts, as its performance does not scale and it has limited undo).
+//
+// Non-trivial behaviors are modelled after Windows text controls.
+//
+//
+// LICENSE
+//
+// See end of file for license information.
+//
+//
+// DEPENDENCIES
+//
+// Uses the C runtime function 'memmove', which you can override
+// by defining STB_TEXTEDIT_memmove before the implementation.
+// Uses no other functions. Performs no runtime allocations.
+//
+//
+// VERSION HISTORY
+//
+//   1.14 (2021-07-11) page up/down, various fixes
+//   1.13 (2019-02-07) fix bug in undo size management
+//   1.12 (2018-01-29) user can change STB_TEXTEDIT_KEYTYPE, fix redo to avoid crash
+//   1.11 (2017-03-03) fix HOME on last line, dragging off single-line textfield
+//   1.10 (2016-10-25) supress warnings about casting away const with -Wcast-qual
+//   1.9  (2016-08-27) customizable move-by-word
+//   1.8  (2016-04-02) better keyboard handling when mouse button is down
+//   1.7  (2015-09-13) change y range handling in case baseline is non-0
+//   1.6  (2015-04-15) allow STB_TEXTEDIT_memmove
+//   1.5  (2014-09-10) add support for secondary keys for OS X
+//   1.4  (2014-08-17) fix signed/unsigned warnings
+//   1.3  (2014-06-19) fix mouse clicking to round to nearest char boundary
+//   1.2  (2014-05-27) fix some RAD types that had crept into the new code
+//   1.1  (2013-12-15) move-by-word (requires STB_TEXTEDIT_IS_SPACE )
+//   1.0  (2012-07-26) improve documentation, initial public release
+//   0.3  (2012-02-24) bugfixes, single-line mode; insert mode
+//   0.2  (2011-11-28) fixes to undo/redo
+//   0.1  (2010-07-08) initial version
+//
+// ADDITIONAL CONTRIBUTORS
+//
+//   Ulf Winklemann: move-by-word in 1.1
+//   Fabian Giesen: secondary key inputs in 1.5
+//   Martins Mozeiko: STB_TEXTEDIT_memmove in 1.6
+//   Louis Schnellbach: page up/down in 1.14
+//
+//   Bugfixes:
+//      Scott Graham
+//      Daniel Keller
+//      Omar Cornut
+//      Dan Thompson
+//
+// USAGE
+//
+// This file behaves differently depending on what symbols you define
+// before including it.
+//
+//
+// Header-file mode:
+//
+//   If you do not define STB_TEXTEDIT_IMPLEMENTATION before including this,
+//   it will operate in "header file" mode. In this mode, it declares a
+//   single public symbol, STB_TexteditState, which encapsulates the current
+//   state of a text widget (except for the string, which you will store
+//   separately).
+//
+//   To compile in this mode, you must define STB_TEXTEDIT_CHARTYPE to a
+//   primitive type that defines a single character (e.g. char, wchar_t, etc).
+//
+//   To save space or increase undo-ability, you can optionally define the
+//   following things that are used by the undo system:
+//
+//      STB_TEXTEDIT_POSITIONTYPE         small int type encoding a valid cursor position
+//      STB_TEXTEDIT_UNDOSTATECOUNT       the number of undo states to allow
+//      STB_TEXTEDIT_UNDOCHARCOUNT        the number of characters to store in the undo buffer
+//
+//   If you don't define these, they are set to permissive types and
+//   moderate sizes. The undo system does no memory allocations, so
+//   it grows STB_TexteditState by the worst-case storage which is (in bytes):
+//
+//        [4 + 3 * sizeof(STB_TEXTEDIT_POSITIONTYPE)] * STB_TEXTEDIT_UNDOSTATECOUNT
+//      +          sizeof(STB_TEXTEDIT_CHARTYPE)      * STB_TEXTEDIT_UNDOCHARCOUNT
+//
+//
+// Implementation mode:
+//
+//   If you define STB_TEXTEDIT_IMPLEMENTATION before including this, it
+//   will compile the implementation of the text edit widget, depending
+//   on a large number of symbols which must be defined before the include.
+//
+//   The implementation is defined only as static functions. You will then
+//   need to provide your own APIs in the same file which will access the
+//   static functions.
+//
+//   The basic concept is that you provide a "string" object which
+//   behaves like an array of characters. stb_textedit uses indices to
+//   refer to positions in the string, implicitly representing positions
+//   in the displayed textedit. This is true for both plain text and
+//   rich text; even with rich text stb_truetype interacts with your
+//   code as if there was an array of all the displayed characters.
+//
+// Symbols that must be the same in header-file and implementation mode:
+//
+//     STB_TEXTEDIT_CHARTYPE             the character type
+//     STB_TEXTEDIT_POSITIONTYPE         small type that is a valid cursor position
+//     STB_TEXTEDIT_UNDOSTATECOUNT       the number of undo states to allow
+//     STB_TEXTEDIT_UNDOCHARCOUNT        the number of characters to store in the undo buffer
+//
+// Symbols you must define for implementation mode:
+//
+//    STB_TEXTEDIT_STRING               the type of object representing a string being edited,
+//                                      typically this is a wrapper object with other data you need
+//
+//    STB_TEXTEDIT_STRINGLEN(obj)       the length of the string (ideally O(1))
+//    STB_TEXTEDIT_LAYOUTROW(&r,obj,n)  returns the results of laying out a line of characters
+//                                        starting from character #n (see discussion below)
+//    STB_TEXTEDIT_GETWIDTH(obj,n,i)    returns the pixel delta from the xpos of the i'th character
+//                                        to the xpos of the i+1'th char for a line of characters
+//                                        starting at character #n (i.e. accounts for kerning
+//                                        with previous char)
+//    STB_TEXTEDIT_KEYTOTEXT(k)         maps a keyboard input to an insertable character
+//                                        (return type is int, -1 means not valid to insert)
+//    STB_TEXTEDIT_GETCHAR(obj,i)       returns the i'th character of obj, 0-based
+//    STB_TEXTEDIT_NEWLINE              the character returned by _GETCHAR() we recognize
+//                                        as manually wordwrapping for end-of-line positioning
+//
+//    STB_TEXTEDIT_DELETECHARS(obj,i,n)      delete n characters starting at i
+//    STB_TEXTEDIT_INSERTCHARS(obj,i,c*,n)   insert n characters at i (pointed to by STB_TEXTEDIT_CHARTYPE*)
+//
+//    STB_TEXTEDIT_K_SHIFT       a power of two that is or'd in to a keyboard input to represent the shift key
+//
+//    STB_TEXTEDIT_K_LEFT        keyboard input to move cursor left
+//    STB_TEXTEDIT_K_RIGHT       keyboard input to move cursor right
+//    STB_TEXTEDIT_K_UP          keyboard input to move cursor up
+//    STB_TEXTEDIT_K_DOWN        keyboard input to move cursor down
+//    STB_TEXTEDIT_K_PGUP        keyboard input to move cursor up a page
+//    STB_TEXTEDIT_K_PGDOWN      keyboard input to move cursor down a page
+//    STB_TEXTEDIT_K_LINESTART   keyboard input to move cursor to start of line  // e.g. HOME
+//    STB_TEXTEDIT_K_LINEEND     keyboard input to move cursor to end of line    // e.g. END
+//    STB_TEXTEDIT_K_TEXTSTART   keyboard input to move cursor to start of text  // e.g. ctrl-HOME
+//    STB_TEXTEDIT_K_TEXTEND     keyboard input to move cursor to end of text    // e.g. ctrl-END
+//    STB_TEXTEDIT_K_DELETE      keyboard input to delete selection or character under cursor
+//    STB_TEXTEDIT_K_BACKSPACE   keyboard input to delete selection or character left of cursor
+//    STB_TEXTEDIT_K_UNDO        keyboard input to perform undo
+//    STB_TEXTEDIT_K_REDO        keyboard input to perform redo
+//
+// Optional:
+//    STB_TEXTEDIT_K_INSERT              keyboard input to toggle insert mode
+//    STB_TEXTEDIT_IS_SPACE(ch)          true if character is whitespace (e.g. 'isspace'),
+//                                          required for default WORDLEFT/WORDRIGHT handlers
+//    STB_TEXTEDIT_MOVEWORDLEFT(obj,i)   custom handler for WORDLEFT, returns index to move cursor to
+//    STB_TEXTEDIT_MOVEWORDRIGHT(obj,i)  custom handler for WORDRIGHT, returns index to move cursor to
+//    STB_TEXTEDIT_K_WORDLEFT            keyboard input to move cursor left one word // e.g. ctrl-LEFT
+//    STB_TEXTEDIT_K_WORDRIGHT           keyboard input to move cursor right one word // e.g. ctrl-RIGHT
+//    STB_TEXTEDIT_K_LINESTART2          secondary keyboard input to move cursor to start of line
+//    STB_TEXTEDIT_K_LINEEND2            secondary keyboard input to move cursor to end of line
+//    STB_TEXTEDIT_K_TEXTSTART2          secondary keyboard input to move cursor to start of text
+//    STB_TEXTEDIT_K_TEXTEND2            secondary keyboard input to move cursor to end of text
+//
+// Keyboard input must be encoded as a single integer value; e.g. a character code
+// and some bitflags that represent shift states. to simplify the interface, SHIFT must
+// be a bitflag, so we can test the shifted state of cursor movements to allow selection,
+// i.e. (STB_TEXTEDIT_K_RIGHT|STB_TEXTEDIT_K_SHIFT) should be shifted right-arrow.
+//
+// You can encode other things, such as CONTROL or ALT, in additional bits, and
+// then test for their presence in e.g. STB_TEXTEDIT_K_WORDLEFT. For example,
+// my Windows implementations add an additional CONTROL bit, and an additional KEYDOWN
+// bit. Then all of the STB_TEXTEDIT_K_ values bitwise-or in the KEYDOWN bit,
+// and I pass both WM_KEYDOWN and WM_CHAR events to the "key" function in the
+// API below. The control keys will only match WM_KEYDOWN events because of the
+// keydown bit I add, and STB_TEXTEDIT_KEYTOTEXT only tests for the KEYDOWN
+// bit so it only decodes WM_CHAR events.
+//
+// STB_TEXTEDIT_LAYOUTROW returns information about the shape of one displayed
+// row of characters assuming they start on the i'th character--the width and
+// the height and the number of characters consumed. This allows this library
+// to traverse the entire layout incrementally. You need to compute word-wrapping
+// here.
+//
+// Each textfield keeps its own insert mode state, which is not how normal
+// applications work. To keep an app-wide insert mode, update/copy the
+// "insert_mode" field of STB_TexteditState before/after calling API functions.
+//
+// API
+//
+//    void stb_textedit_initialize_state(STB_TexteditState *state, int is_single_line)
+//
+//    void stb_textedit_click(STB_TEXTEDIT_STRING *str, STB_TexteditState *state, float x, float y)
+//    void stb_textedit_drag(STB_TEXTEDIT_STRING *str, STB_TexteditState *state, float x, float y)
+//    int  stb_textedit_cut(STB_TEXTEDIT_STRING *str, STB_TexteditState *state)
+//    int  stb_textedit_paste(STB_TEXTEDIT_STRING *str, STB_TexteditState *state, STB_TEXTEDIT_CHARTYPE *text, int len)
+//    void stb_textedit_key(STB_TEXTEDIT_STRING *str, STB_TexteditState *state, STB_TEXEDIT_KEYTYPE key)
+//
+//    Each of these functions potentially updates the string and updates the
+//    state.
+//
+//      initialize_state:
+//          set the textedit state to a known good default state when initially
+//          constructing the textedit.
+//
+//      click:
+//          call this with the mouse x,y on a mouse down; it will update the cursor
+//          and reset the selection start/end to the cursor point. the x,y must
+//          be relative to the text widget, with (0,0) being the top left.
+//
+//      drag:
+//          call this with the mouse x,y on a mouse drag/up; it will update the
+//          cursor and the selection end point
+//
+//      cut:
+//          call this to delete the current selection; returns true if there was
+//          one. you should FIRST copy the current selection to the system paste buffer.
+//          (To copy, just copy the current selection out of the string yourself.)
+//
+//      paste:
+//          call this to paste text at the current cursor point or over the current
+//          selection if there is one.
+//
+//      key:
+//          call this for keyboard inputs sent to the textfield. you can use it
+//          for "key down" events or for "translated" key events. if you need to
+//          do both (as in Win32), or distinguish Unicode characters from control
+//          inputs, set a high bit to distinguish the two; then you can define the
+//          various definitions like STB_TEXTEDIT_K_LEFT have the is-key-event bit
+//          set, and make STB_TEXTEDIT_KEYTOCHAR check that the is-key-event bit is
+//          clear. STB_TEXTEDIT_KEYTYPE defaults to int, but you can #define it to
+//          anything other type you wante before including.
+//
+//
+//   When rendering, you can read the cursor position and selection state from
+//   the STB_TexteditState.
+//
+//
+// Notes:
+//
+// This is designed to be usable in IMGUI, so it allows for the possibility of
+// running in an IMGUI that has NOT cached the multi-line layout. For this
+// reason, it provides an interface that is compatible with computing the
+// layout incrementally--we try to make sure we make as few passes through
+// as possible. (For example, to locate the mouse pointer in the text, we
+// could define functions that return the X and Y positions of characters
+// and binary search Y and then X, but if we're doing dynamic layout this
+// will run the layout algorithm many times, so instead we manually search
+// forward in one pass. Similar logic applies to e.g. up-arrow and
+// down-arrow movement.)
+//
+// If it's run in a widget that *has* cached the layout, then this is less
+// efficient, but it's not horrible on modern computers. But you wouldn't
+// want to edit million-line files with it.
+
+
+////////////////////////////////////////////////////////////////////////////
+////////////////////////////////////////////////////////////////////////////
+////
+////   Header-file mode
+////
+////
+
+#ifndef INCLUDE_STB_TEXTEDIT_H
+#define INCLUDE_STB_TEXTEDIT_H
+
+////////////////////////////////////////////////////////////////////////
+//
+//     STB_TexteditState
+//
+// Definition of STB_TexteditState which you should store
+// per-textfield; it includes cursor position, selection state,
+// and undo state.
+//
+
+#ifndef STB_TEXTEDIT_UNDOSTATECOUNT
+#define STB_TEXTEDIT_UNDOSTATECOUNT   99
+#endif
+#ifndef STB_TEXTEDIT_UNDOCHARCOUNT
+#define STB_TEXTEDIT_UNDOCHARCOUNT   999
+#endif
+#ifndef STB_TEXTEDIT_CHARTYPE
+#define STB_TEXTEDIT_CHARTYPE        int
+#endif
+#ifndef STB_TEXTEDIT_POSITIONTYPE
+#define STB_TEXTEDIT_POSITIONTYPE    int
+#endif
+
+typedef struct
+{
+   // private data
+   STB_TEXTEDIT_POSITIONTYPE  where;
+   STB_TEXTEDIT_POSITIONTYPE  insert_length;
+   STB_TEXTEDIT_POSITIONTYPE  delete_length;
+   int                        char_storage;
+} StbUndoRecord;
+
+typedef struct
+{
+   // private data
+   StbUndoRecord          undo_rec [STB_TEXTEDIT_UNDOSTATECOUNT];
+   STB_TEXTEDIT_CHARTYPE  undo_char[STB_TEXTEDIT_UNDOCHARCOUNT];
+   short undo_point, redo_point;
+   int undo_char_point, redo_char_point;
+} StbUndoState;
+
+typedef struct
+{
+   /////////////////////
+   //
+   // public data
+   //
+
+   int cursor;
+   // position of the text cursor within the string
+
+   int select_start;          // selection start point
+   int select_end;
+   // selection start and end point in characters; if equal, no selection.
+   // note that start may be less than or greater than end (e.g. when
+   // dragging the mouse, start is where the initial click was, and you
+   // can drag in either direction)
+
+   unsigned char insert_mode;
+   // each textfield keeps its own insert mode state. to keep an app-wide
+   // insert mode, copy this value in/out of the app state
+
+   int row_count_per_page;
+   // page size in number of row.
+   // this value MUST be set to >0 for pageup or pagedown in multilines documents.
+
+   /////////////////////
+   //
+   // private data
+   //
+   unsigned char cursor_at_end_of_line; // not implemented yet
+   unsigned char initialized;
+   unsigned char has_preferred_x;
+   unsigned char single_line;
+   unsigned char padding1, padding2, padding3;
+   float preferred_x; // this determines where the cursor up/down tries to seek to along x
+   StbUndoState undostate;
+} STB_TexteditState;
+
+
+////////////////////////////////////////////////////////////////////////
+//
+//     StbTexteditRow
+//
+// Result of layout query, used by stb_textedit to determine where
+// the text in each row is.
+
+// result of layout query
+typedef struct
+{
+   float x0,x1;             // starting x location, end x location (allows for align=right, etc)
+   float baseline_y_delta;  // position of baseline relative to previous row's baseline
+   float ymin,ymax;         // height of row above and below baseline
+   int num_chars;
+} StbTexteditRow;
+#endif //INCLUDE_STB_TEXTEDIT_H
+
+
+////////////////////////////////////////////////////////////////////////////
+////////////////////////////////////////////////////////////////////////////
+////
+////   Implementation mode
+////
+////
+
+
+// implementation isn't include-guarded, since it might have indirectly
+// included just the "header" portion
+#ifdef STB_TEXTEDIT_IMPLEMENTATION
+
+#ifndef STB_TEXTEDIT_memmove
+#include <string.h>
+#define STB_TEXTEDIT_memmove memmove
+#endif
+
+
+/////////////////////////////////////////////////////////////////////////////
+//
+//      Mouse input handling
+//
+
+// traverse the layout to locate the nearest character to a display position
+static int stb_text_locate_coord(STB_TEXTEDIT_STRING *str, float x, float y)
+{
+   StbTexteditRow r;
+   int n = STB_TEXTEDIT_STRINGLEN(str);
+   float base_y = 0, prev_x;
+   int i=0, k;
+
+   r.x0 = r.x1 = 0;
+   r.ymin = r.ymax = 0;
+   r.num_chars = 0;
+
+   // search rows to find one that straddles 'y'
+   while (i < n) {
+      STB_TEXTEDIT_LAYOUTROW(&r, str, i);
+      if (r.num_chars <= 0)
+         return n;
+
+      if (i==0 && y < base_y + r.ymin)
+         return 0;
+
+      if (y < base_y + r.ymax)
+         break;
+
+      i += r.num_chars;
+      base_y += r.baseline_y_delta;
+   }
+
+   // below all text, return 'after' last character
+   if (i >= n)
+      return n;
+
+   // check if it's before the beginning of the line
+   if (x < r.x0)
+      return i;
+
+   // check if it's before the end of the line
+   if (x < r.x1) {
+      // search characters in row for one that straddles 'x'
+      prev_x = r.x0;
+      for (k=0; k < r.num_chars; ++k) {
+         float w = STB_TEXTEDIT_GETWIDTH(str, i, k);
+         if (x < prev_x+w) {
+            if (x < prev_x+w/2)
+               return k+i;
+            else
+               return k+i+1;
+         }
+         prev_x += w;
+      }
+      // shouldn't happen, but if it does, fall through to end-of-line case
+   }
+
+   // if the last character is a newline, return that. otherwise return 'after' the last character
+   if (STB_TEXTEDIT_GETCHAR(str, i+r.num_chars-1) == STB_TEXTEDIT_NEWLINE)
+      return i+r.num_chars-1;
+   else
+      return i+r.num_chars;
+}
+
+// API click: on mouse down, move the cursor to the clicked location, and reset the selection
+static void stb_textedit_click(STB_TEXTEDIT_STRING *str, STB_TexteditState *state, float x, float y)
+{
+   // In single-line mode, just always make y = 0. This lets the drag keep working if the mouse
+   // goes off the top or bottom of the text
+   if( state->single_line )
+   {
+      StbTexteditRow r;
+      STB_TEXTEDIT_LAYOUTROW(&r, str, 0);
+      y = r.ymin;
+   }
+
+   state->cursor = stb_text_locate_coord(str, x, y);
+   state->select_start = state->cursor;
+   state->select_end = state->cursor;
+   state->has_preferred_x = 0;
+}
+
+// API drag: on mouse drag, move the cursor and selection endpoint to the clicked location
+static void stb_textedit_drag(STB_TEXTEDIT_STRING *str, STB_TexteditState *state, float x, float y)
+{
+   int p = 0;
+
+   // In single-line mode, just always make y = 0. This lets the drag keep working if the mouse
+   // goes off the top or bottom of the text
+   if( state->single_line )
+   {
+      StbTexteditRow r;
+      STB_TEXTEDIT_LAYOUTROW(&r, str, 0);
+      y = r.ymin;
+   }
+
+   if (state->select_start == state->select_end)
+      state->select_start = state->cursor;
+
+   p = stb_text_locate_coord(str, x, y);
+   state->cursor = state->select_end = p;
+}
+
+/////////////////////////////////////////////////////////////////////////////
+//
+//      Keyboard input handling
+//
+
+// forward declarations
+static void stb_text_undo(STB_TEXTEDIT_STRING *str, STB_TexteditState *state);
+static void stb_text_redo(STB_TEXTEDIT_STRING *str, STB_TexteditState *state);
+static void stb_text_makeundo_delete(STB_TEXTEDIT_STRING *str, STB_TexteditState *state, int where, int length);
+static void stb_text_makeundo_insert(STB_TexteditState *state, int where, int length);
+static void stb_text_makeundo_replace(STB_TEXTEDIT_STRING *str, STB_TexteditState *state, int where, int old_length, int new_length);
+
+typedef struct
+{
+   float x,y;    // position of n'th character
+   float height; // height of line
+   int first_char, length; // first char of row, and length
+   int prev_first;  // first char of previous row
+} StbFindState;
+
+// find the x/y location of a character, and remember info about the previous row in
+// case we get a move-up event (for page up, we'll have to rescan)
+static void stb_textedit_find_charpos(StbFindState *find, STB_TEXTEDIT_STRING *str, int n, int single_line)
+{
+   StbTexteditRow r;
+   int prev_start = 0;
+   int z = STB_TEXTEDIT_STRINGLEN(str);
+   int i=0, first;
+
+   if (n == z) {
+      // if it's at the end, then find the last line -- simpler than trying to
+      // explicitly handle this case in the regular code
+      if (single_line) {
+         STB_TEXTEDIT_LAYOUTROW(&r, str, 0);
+         find->y = 0;
+         find->first_char = 0;
+         find->length = z;
+         find->height = r.ymax - r.ymin;
+         find->x = r.x1;
+      } else {
+         find->y = 0;
+         find->x = 0;
+         find->height = 1;
+         while (i < z) {
+            STB_TEXTEDIT_LAYOUTROW(&r, str, i);
+            prev_start = i;
+            i += r.num_chars;
+         }
+         find->first_char = i;
+         find->length = 0;
+         find->prev_first = prev_start;
+      }
+      return;
+   }
+
+   // search rows to find the one that straddles character n
+   find->y = 0;
+
+   for(;;) {
+      STB_TEXTEDIT_LAYOUTROW(&r, str, i);
+      if (n < i + r.num_chars)
+         break;
+      prev_start = i;
+      i += r.num_chars;
+      find->y += r.baseline_y_delta;
+   }
+
+   find->first_char = first = i;
+   find->length = r.num_chars;
+   find->height = r.ymax - r.ymin;
+   find->prev_first = prev_start;
+
+   // now scan to find xpos
+   find->x = r.x0;
+   for (i=0; first+i < n; ++i)
+      find->x += STB_TEXTEDIT_GETWIDTH(str, first, i);
+}
+
+#define STB_TEXT_HAS_SELECTION(s)   ((s)->select_start != (s)->select_end)
+
+// make the selection/cursor state valid if client altered the string
+static void stb_textedit_clamp(STB_TEXTEDIT_STRING *str, STB_TexteditState *state)
+{
+   int n = STB_TEXTEDIT_STRINGLEN(str);
+   if (STB_TEXT_HAS_SELECTION(state)) {
+      if (state->select_start > n) state->select_start = n;
+      if (state->select_end   > n) state->select_end = n;
+      // if clamping forced them to be equal, move the cursor to match
+      if (state->select_start == state->select_end)
+         state->cursor = state->select_start;
+   }
+   if (state->cursor > n) state->cursor = n;
+}
+
+// delete characters while updating undo
+static void stb_textedit_delete(STB_TEXTEDIT_STRING *str, STB_TexteditState *state, int where, int len)
+{
+   stb_text_makeundo_delete(str, state, where, len);
+   STB_TEXTEDIT_DELETECHARS(str, where, len);
+   state->has_preferred_x = 0;
+}
+
+// delete the section
+static void stb_textedit_delete_selection(STB_TEXTEDIT_STRING *str, STB_TexteditState *state)
+{
+   stb_textedit_clamp(str, state);
+   if (STB_TEXT_HAS_SELECTION(state)) {
+      if (state->select_start < state->select_end) {
+         stb_textedit_delete(str, state, state->select_start, state->select_end - state->select_start);
+         state->select_end = state->cursor = state->select_start;
+      } else {
+         stb_textedit_delete(str, state, state->select_end, state->select_start - state->select_end);
+         state->select_start = state->cursor = state->select_end;
+      }
+      state->has_preferred_x = 0;
+   }
+}
+
+// canoncialize the selection so start <= end
+static void stb_textedit_sortselection(STB_TexteditState *state)
+{
+   if (state->select_end < state->select_start) {
+      int temp = state->select_end;
+      state->select_end = state->select_start;
+      state->select_start = temp;
+   }
+}
+
+// move cursor to first character of selection
+static void stb_textedit_move_to_first(STB_TexteditState *state)
+{
+   if (STB_TEXT_HAS_SELECTION(state)) {
+      stb_textedit_sortselection(state);
+      state->cursor = state->select_start;
+      state->select_end = state->select_start;
+      state->has_preferred_x = 0;
+   }
+}
+
+// move cursor to last character of selection
+static void stb_textedit_move_to_last(STB_TEXTEDIT_STRING *str, STB_TexteditState *state)
+{
+   if (STB_TEXT_HAS_SELECTION(state)) {
+      stb_textedit_sortselection(state);
+      stb_textedit_clamp(str, state);
+      state->cursor = state->select_end;
+      state->select_start = state->select_end;
+      state->has_preferred_x = 0;
+   }
+}
+
+#ifdef STB_TEXTEDIT_IS_SPACE
+static int is_word_boundary( STB_TEXTEDIT_STRING *str, int idx )
+{
+   return idx > 0 ? (STB_TEXTEDIT_IS_SPACE( STB_TEXTEDIT_GETCHAR(str,idx-1) ) && !STB_TEXTEDIT_IS_SPACE( STB_TEXTEDIT_GETCHAR(str, idx) ) ) : 1;
+}
+
+#ifndef STB_TEXTEDIT_MOVEWORDLEFT
+static int stb_textedit_move_to_word_previous( STB_TEXTEDIT_STRING *str, int c )
+{
+   --c; // always move at least one character
+   while( c >= 0 && !is_word_boundary( str, c ) )
+      --c;
+
+   if( c < 0 )
+      c = 0;
+
+   return c;
+}
+#define STB_TEXTEDIT_MOVEWORDLEFT stb_textedit_move_to_word_previous
+#endif
+
+#ifndef STB_TEXTEDIT_MOVEWORDRIGHT
+static int stb_textedit_move_to_word_next( STB_TEXTEDIT_STRING *str, int c )
+{
+   const int len = STB_TEXTEDIT_STRINGLEN(str);
+   ++c; // always move at least one character
+   while( c < len && !is_word_boundary( str, c ) )
+      ++c;
+
+   if( c > len )
+      c = len;
+
+   return c;
+}
+#define STB_TEXTEDIT_MOVEWORDRIGHT stb_textedit_move_to_word_next
+#endif
+
+#endif
+
+// update selection and cursor to match each other
+static void stb_textedit_prep_selection_at_cursor(STB_TexteditState *state)
+{
+   if (!STB_TEXT_HAS_SELECTION(state))
+      state->select_start = state->select_end = state->cursor;
+   else
+      state->cursor = state->select_end;
+}
+
+// API cut: delete selection
+static int stb_textedit_cut(STB_TEXTEDIT_STRING *str, STB_TexteditState *state)
+{
+   if (STB_TEXT_HAS_SELECTION(state)) {
+      stb_textedit_delete_selection(str,state); // implicitly clamps
+      state->has_preferred_x = 0;
+      return 1;
+   }
+   return 0;
+}
+
+// API paste: replace existing selection with passed-in text
+static int stb_textedit_paste_internal(STB_TEXTEDIT_STRING *str, STB_TexteditState *state, STB_TEXTEDIT_CHARTYPE *text, int len)
+{
+   // if there's a selection, the paste should delete it
+   stb_textedit_clamp(str, state);
+   stb_textedit_delete_selection(str,state);
+   // try to insert the characters
+   if (STB_TEXTEDIT_INSERTCHARS(str, state->cursor, text, len)) {
+      stb_text_makeundo_insert(state, state->cursor, len);
+      state->cursor += len;
+      state->has_preferred_x = 0;
+      return 1;
+   }
+   // note: paste failure will leave deleted selection, may be restored with an undo (see https://github.com/nothings/stb/issues/734 for details)
+   return 0;
+}
+
+#ifndef STB_TEXTEDIT_KEYTYPE
+#define STB_TEXTEDIT_KEYTYPE int
+#endif
+
+// API key: process a keyboard input
+static void stb_textedit_key(STB_TEXTEDIT_STRING *str, STB_TexteditState *state, STB_TEXTEDIT_KEYTYPE key)
+{
+retry:
+   switch (key) {
+      default: {
+         int c = STB_TEXTEDIT_KEYTOTEXT(key);
+         if (c > 0) {
+            STB_TEXTEDIT_CHARTYPE ch = (STB_TEXTEDIT_CHARTYPE) c;
+
+            // can't add newline in single-line mode
+            if (c == '\n' && state->single_line)
+               break;
+
+            if (state->insert_mode && !STB_TEXT_HAS_SELECTION(state) && state->cursor < STB_TEXTEDIT_STRINGLEN(str)) {
+               stb_text_makeundo_replace(str, state, state->cursor, 1, 1);
+               STB_TEXTEDIT_DELETECHARS(str, state->cursor, 1);
+               if (STB_TEXTEDIT_INSERTCHARS(str, state->cursor, &ch, 1)) {
+                  ++state->cursor;
+                  state->has_preferred_x = 0;
+               }
+            } else {
+               stb_textedit_delete_selection(str,state); // implicitly clamps
+               if (STB_TEXTEDIT_INSERTCHARS(str, state->cursor, &ch, 1)) {
+                  stb_text_makeundo_insert(state, state->cursor, 1);
+                  ++state->cursor;
+                  state->has_preferred_x = 0;
+               }
+            }
+         }
+         break;
+      }
+
+#ifdef STB_TEXTEDIT_K_INSERT
+      case STB_TEXTEDIT_K_INSERT:
+         state->insert_mode = !state->insert_mode;
+         break;
+#endif
+
+      case STB_TEXTEDIT_K_UNDO:
+         stb_text_undo(str, state);
+         state->has_preferred_x = 0;
+         break;
+
+      case STB_TEXTEDIT_K_REDO:
+         stb_text_redo(str, state);
+         state->has_preferred_x = 0;
+         break;
+
+      case STB_TEXTEDIT_K_LEFT:
+         // if currently there's a selection, move cursor to start of selection
+         if (STB_TEXT_HAS_SELECTION(state))
+            stb_textedit_move_to_first(state);
+         else
+            if (state->cursor > 0)
+               --state->cursor;
+         state->has_preferred_x = 0;
+         break;
+
+      case STB_TEXTEDIT_K_RIGHT:
+         // if currently there's a selection, move cursor to end of selection
+         if (STB_TEXT_HAS_SELECTION(state))
+            stb_textedit_move_to_last(str, state);
+         else
+            ++state->cursor;
+         stb_textedit_clamp(str, state);
+         state->has_preferred_x = 0;
+         break;
+
+      case STB_TEXTEDIT_K_LEFT | STB_TEXTEDIT_K_SHIFT:
+         stb_textedit_clamp(str, state);
+         stb_textedit_prep_selection_at_cursor(state);
+         // move selection left
+         if (state->select_end > 0)
+            --state->select_end;
+         state->cursor = state->select_end;
+         state->has_preferred_x = 0;
+         break;
+
+#ifdef STB_TEXTEDIT_MOVEWORDLEFT
+      case STB_TEXTEDIT_K_WORDLEFT:
+         if (STB_TEXT_HAS_SELECTION(state))
+            stb_textedit_move_to_first(state);
+         else {
+            state->cursor = STB_TEXTEDIT_MOVEWORDLEFT(str, state->cursor);
+            stb_textedit_clamp( str, state );
+         }
+         break;
+
+      case STB_TEXTEDIT_K_WORDLEFT | STB_TEXTEDIT_K_SHIFT:
+         if( !STB_TEXT_HAS_SELECTION( state ) )
+            stb_textedit_prep_selection_at_cursor(state);
+
+         state->cursor = STB_TEXTEDIT_MOVEWORDLEFT(str, state->cursor);
+         state->select_end = state->cursor;
+
+         stb_textedit_clamp( str, state );
+         break;
+#endif
+
+#ifdef STB_TEXTEDIT_MOVEWORDRIGHT
+      case STB_TEXTEDIT_K_WORDRIGHT:
+         if (STB_TEXT_HAS_SELECTION(state))
+            stb_textedit_move_to_last(str, state);
+         else {
+            state->cursor = STB_TEXTEDIT_MOVEWORDRIGHT(str, state->cursor);
+            stb_textedit_clamp( str, state );
+         }
+         break;
+
+      case STB_TEXTEDIT_K_WORDRIGHT | STB_TEXTEDIT_K_SHIFT:
+         if( !STB_TEXT_HAS_SELECTION( state ) )
+            stb_textedit_prep_selection_at_cursor(state);
+
+         state->cursor = STB_TEXTEDIT_MOVEWORDRIGHT(str, state->cursor);
+         state->select_end = state->cursor;
+
+         stb_textedit_clamp( str, state );
+         break;
+#endif
+
+      case STB_TEXTEDIT_K_RIGHT | STB_TEXTEDIT_K_SHIFT:
+         stb_textedit_prep_selection_at_cursor(state);
+         // move selection right
+         ++state->select_end;
+         stb_textedit_clamp(str, state);
+         state->cursor = state->select_end;
+         state->has_preferred_x = 0;
+         break;
+
+      case STB_TEXTEDIT_K_DOWN:
+      case STB_TEXTEDIT_K_DOWN | STB_TEXTEDIT_K_SHIFT:
+      case STB_TEXTEDIT_K_PGDOWN:
+      case STB_TEXTEDIT_K_PGDOWN | STB_TEXTEDIT_K_SHIFT: {
+         StbFindState find;
+         StbTexteditRow row;
+         int i, j, sel = (key & STB_TEXTEDIT_K_SHIFT) != 0;
+         int is_page = (key & ~STB_TEXTEDIT_K_SHIFT) == STB_TEXTEDIT_K_PGDOWN;
+         int row_count = is_page ? state->row_count_per_page : 1;
+
+         if (!is_page && state->single_line) {
+            // on windows, up&down in single-line behave like left&right
+            key = STB_TEXTEDIT_K_RIGHT | (key & STB_TEXTEDIT_K_SHIFT);
+            goto retry;
+         }
+
+         if (sel)
+            stb_textedit_prep_selection_at_cursor(state);
+         else if (STB_TEXT_HAS_SELECTION(state))
+            stb_textedit_move_to_last(str, state);
+
+         // compute current position of cursor point
+         stb_textedit_clamp(str, state);
+         stb_textedit_find_charpos(&find, str, state->cursor, state->single_line);
+
+         for (j = 0; j < row_count; ++j) {
+            float x, goal_x = state->has_preferred_x ? state->preferred_x : find.x;
+            int start = find.first_char + find.length;
+
+            if (find.length == 0)
+               break;
+
+            // [DEAR IMGUI]
+            // going down while being on the last line shouldn't bring us to that line end
+            if (STB_TEXTEDIT_GETCHAR(str, find.first_char + find.length - 1) != STB_TEXTEDIT_NEWLINE)
+               break;
+
+            // now find character position down a row
+            state->cursor = start;
+            STB_TEXTEDIT_LAYOUTROW(&row, str, state->cursor);
+            x = row.x0;
+            for (i=0; i < row.num_chars; ++i) {
+               float dx = STB_TEXTEDIT_GETWIDTH(str, start, i);
+               #ifdef STB_TEXTEDIT_GETWIDTH_NEWLINE
+               if (dx == STB_TEXTEDIT_GETWIDTH_NEWLINE)
+                  break;
+               #endif
+               x += dx;
+               if (x > goal_x)
+                  break;
+               ++state->cursor;
+            }
+            stb_textedit_clamp(str, state);
+
+            state->has_preferred_x = 1;
+            state->preferred_x = goal_x;
+
+            if (sel)
+               state->select_end = state->cursor;
+
+            // go to next line
+            find.first_char = find.first_char + find.length;
+            find.length = row.num_chars;
+         }
+         break;
+      }
+
+      case STB_TEXTEDIT_K_UP:
+      case STB_TEXTEDIT_K_UP | STB_TEXTEDIT_K_SHIFT:
+      case STB_TEXTEDIT_K_PGUP:
+      case STB_TEXTEDIT_K_PGUP | STB_TEXTEDIT_K_SHIFT: {
+         StbFindState find;
+         StbTexteditRow row;
+         int i, j, prev_scan, sel = (key & STB_TEXTEDIT_K_SHIFT) != 0;
+         int is_page = (key & ~STB_TEXTEDIT_K_SHIFT) == STB_TEXTEDIT_K_PGUP;
+         int row_count = is_page ? state->row_count_per_page : 1;
+
+         if (!is_page && state->single_line) {
+            // on windows, up&down become left&right
+            key = STB_TEXTEDIT_K_LEFT | (key & STB_TEXTEDIT_K_SHIFT);
+            goto retry;
+         }
+
+         if (sel)
+            stb_textedit_prep_selection_at_cursor(state);
+         else if (STB_TEXT_HAS_SELECTION(state))
+            stb_textedit_move_to_first(state);
+
+         // compute current position of cursor point
+         stb_textedit_clamp(str, state);
+         stb_textedit_find_charpos(&find, str, state->cursor, state->single_line);
+
+         for (j = 0; j < row_count; ++j) {
+            float  x, goal_x = state->has_preferred_x ? state->preferred_x : find.x;
+
+            // can only go up if there's a previous row
+            if (find.prev_first == find.first_char)
+               break;
+
+            // now find character position up a row
+            state->cursor = find.prev_first;
+            STB_TEXTEDIT_LAYOUTROW(&row, str, state->cursor);
+            x = row.x0;
+            for (i=0; i < row.num_chars; ++i) {
+               float dx = STB_TEXTEDIT_GETWIDTH(str, find.prev_first, i);
+               #ifdef STB_TEXTEDIT_GETWIDTH_NEWLINE
+               if (dx == STB_TEXTEDIT_GETWIDTH_NEWLINE)
+                  break;
+               #endif
+               x += dx;
+               if (x > goal_x)
+                  break;
+               ++state->cursor;
+            }
+            stb_textedit_clamp(str, state);
+
+            state->has_preferred_x = 1;
+            state->preferred_x = goal_x;
+
+            if (sel)
+               state->select_end = state->cursor;
+
+            // go to previous line
+            // (we need to scan previous line the hard way. maybe we could expose this as a new API function?)
+            prev_scan = find.prev_first > 0 ? find.prev_first - 1 : 0;
+            while (prev_scan > 0 && STB_TEXTEDIT_GETCHAR(str, prev_scan - 1) != STB_TEXTEDIT_NEWLINE)
+               --prev_scan;
+            find.first_char = find.prev_first;
+            find.prev_first = prev_scan;
+         }
+         break;
+      }
+
+      case STB_TEXTEDIT_K_DELETE:
+      case STB_TEXTEDIT_K_DELETE | STB_TEXTEDIT_K_SHIFT:
+         if (STB_TEXT_HAS_SELECTION(state))
+            stb_textedit_delete_selection(str, state);
+         else {
+            int n = STB_TEXTEDIT_STRINGLEN(str);
+            if (state->cursor < n)
+               stb_textedit_delete(str, state, state->cursor, 1);
+         }
+         state->has_preferred_x = 0;
+         break;
+
+      case STB_TEXTEDIT_K_BACKSPACE:
+      case STB_TEXTEDIT_K_BACKSPACE | STB_TEXTEDIT_K_SHIFT:
+         if (STB_TEXT_HAS_SELECTION(state))
+            stb_textedit_delete_selection(str, state);
+         else {
+            stb_textedit_clamp(str, state);
+            if (state->cursor > 0) {
+               stb_textedit_delete(str, state, state->cursor-1, 1);
+               --state->cursor;
+            }
+         }
+         state->has_preferred_x = 0;
+         break;
+
+#ifdef STB_TEXTEDIT_K_TEXTSTART2
+      case STB_TEXTEDIT_K_TEXTSTART2:
+#endif
+      case STB_TEXTEDIT_K_TEXTSTART:
+         state->cursor = state->select_start = state->select_end = 0;
+         state->has_preferred_x = 0;
+         break;
+
+#ifdef STB_TEXTEDIT_K_TEXTEND2
+      case STB_TEXTEDIT_K_TEXTEND2:
+#endif
+      case STB_TEXTEDIT_K_TEXTEND:
+         state->cursor = STB_TEXTEDIT_STRINGLEN(str);
+         state->select_start = state->select_end = 0;
+         state->has_preferred_x = 0;
+         break;
+
+#ifdef STB_TEXTEDIT_K_TEXTSTART2
+      case STB_TEXTEDIT_K_TEXTSTART2 | STB_TEXTEDIT_K_SHIFT:
+#endif
+      case STB_TEXTEDIT_K_TEXTSTART | STB_TEXTEDIT_K_SHIFT:
+         stb_textedit_prep_selection_at_cursor(state);
+         state->cursor = state->select_end = 0;
+         state->has_preferred_x = 0;
+         break;
+
+#ifdef STB_TEXTEDIT_K_TEXTEND2
+      case STB_TEXTEDIT_K_TEXTEND2 | STB_TEXTEDIT_K_SHIFT:
+#endif
+      case STB_TEXTEDIT_K_TEXTEND | STB_TEXTEDIT_K_SHIFT:
+         stb_textedit_prep_selection_at_cursor(state);
+         state->cursor = state->select_end = STB_TEXTEDIT_STRINGLEN(str);
+         state->has_preferred_x = 0;
+         break;
+
+
+#ifdef STB_TEXTEDIT_K_LINESTART2
+      case STB_TEXTEDIT_K_LINESTART2:
+#endif
+      case STB_TEXTEDIT_K_LINESTART:
+         stb_textedit_clamp(str, state);
+         stb_textedit_move_to_first(state);
+         if (state->single_line)
+            state->cursor = 0;
+         else while (state->cursor > 0 && STB_TEXTEDIT_GETCHAR(str, state->cursor-1) != STB_TEXTEDIT_NEWLINE)
+            --state->cursor;
+         state->has_preferred_x = 0;
+         break;
+
+#ifdef STB_TEXTEDIT_K_LINEEND2
+      case STB_TEXTEDIT_K_LINEEND2:
+#endif
+      case STB_TEXTEDIT_K_LINEEND: {
+         int n = STB_TEXTEDIT_STRINGLEN(str);
+         stb_textedit_clamp(str, state);
+         stb_textedit_move_to_first(state);
+         if (state->single_line)
+             state->cursor = n;
+         else while (state->cursor < n && STB_TEXTEDIT_GETCHAR(str, state->cursor) != STB_TEXTEDIT_NEWLINE)
+             ++state->cursor;
+         state->has_preferred_x = 0;
+         break;
+      }
+
+#ifdef STB_TEXTEDIT_K_LINESTART2
+      case STB_TEXTEDIT_K_LINESTART2 | STB_TEXTEDIT_K_SHIFT:
+#endif
+      case STB_TEXTEDIT_K_LINESTART | STB_TEXTEDIT_K_SHIFT:
+         stb_textedit_clamp(str, state);
+         stb_textedit_prep_selection_at_cursor(state);
+         if (state->single_line)
+            state->cursor = 0;
+         else while (state->cursor > 0 && STB_TEXTEDIT_GETCHAR(str, state->cursor-1) != STB_TEXTEDIT_NEWLINE)
+            --state->cursor;
+         state->select_end = state->cursor;
+         state->has_preferred_x = 0;
+         break;
+
+#ifdef STB_TEXTEDIT_K_LINEEND2
+      case STB_TEXTEDIT_K_LINEEND2 | STB_TEXTEDIT_K_SHIFT:
+#endif
+      case STB_TEXTEDIT_K_LINEEND | STB_TEXTEDIT_K_SHIFT: {
+         int n = STB_TEXTEDIT_STRINGLEN(str);
+         stb_textedit_clamp(str, state);
+         stb_textedit_prep_selection_at_cursor(state);
+         if (state->single_line)
+             state->cursor = n;
+         else while (state->cursor < n && STB_TEXTEDIT_GETCHAR(str, state->cursor) != STB_TEXTEDIT_NEWLINE)
+            ++state->cursor;
+         state->select_end = state->cursor;
+         state->has_preferred_x = 0;
+         break;
+      }
+   }
+}
+
+/////////////////////////////////////////////////////////////////////////////
+//
+//      Undo processing
+//
+// @OPTIMIZE: the undo/redo buffer should be circular
+
+static void stb_textedit_flush_redo(StbUndoState *state)
+{
+   state->redo_point = STB_TEXTEDIT_UNDOSTATECOUNT;
+   state->redo_char_point = STB_TEXTEDIT_UNDOCHARCOUNT;
+}
+
+// discard the oldest entry in the undo list
+static void stb_textedit_discard_undo(StbUndoState *state)
+{
+   if (state->undo_point > 0) {
+      // if the 0th undo state has characters, clean those up
+      if (state->undo_rec[0].char_storage >= 0) {
+         int n = state->undo_rec[0].insert_length, i;
+         // delete n characters from all other records
+         state->undo_char_point -= n;
+         STB_TEXTEDIT_memmove(state->undo_char, state->undo_char + n, (size_t) (state->undo_char_point*sizeof(STB_TEXTEDIT_CHARTYPE)));
+         for (i=0; i < state->undo_point; ++i)
+            if (state->undo_rec[i].char_storage >= 0)
+               state->undo_rec[i].char_storage -= n; // @OPTIMIZE: get rid of char_storage and infer it
+      }
+      --state->undo_point;
+      STB_TEXTEDIT_memmove(state->undo_rec, state->undo_rec+1, (size_t) (state->undo_point*sizeof(state->undo_rec[0])));
+   }
+}
+
+// discard the oldest entry in the redo list--it's bad if this
+// ever happens, but because undo & redo have to store the actual
+// characters in different cases, the redo character buffer can
+// fill up even though the undo buffer didn't
+static void stb_textedit_discard_redo(StbUndoState *state)
+{
+   int k = STB_TEXTEDIT_UNDOSTATECOUNT-1;
+
+   if (state->redo_point <= k) {
+      // if the k'th undo state has characters, clean those up
+      if (state->undo_rec[k].char_storage >= 0) {
+         int n = state->undo_rec[k].insert_length, i;
+         // move the remaining redo character data to the end of the buffer
+         state->redo_char_point += n;
+         STB_TEXTEDIT_memmove(state->undo_char + state->redo_char_point, state->undo_char + state->redo_char_point-n, (size_t) ((STB_TEXTEDIT_UNDOCHARCOUNT - state->redo_char_point)*sizeof(STB_TEXTEDIT_CHARTYPE)));
+         // adjust the position of all the other records to account for above memmove
+         for (i=state->redo_point; i < k; ++i)
+            if (state->undo_rec[i].char_storage >= 0)
+               state->undo_rec[i].char_storage += n;
+      }
+      // now move all the redo records towards the end of the buffer; the first one is at 'redo_point'
+      // [DEAR IMGUI]
+      size_t move_size = (size_t)((STB_TEXTEDIT_UNDOSTATECOUNT - state->redo_point - 1) * sizeof(state->undo_rec[0]));
+      const char* buf_begin = (char*)state->undo_rec; (void)buf_begin;
+      const char* buf_end   = (char*)state->undo_rec + sizeof(state->undo_rec); (void)buf_end;
+      IM_ASSERT(((char*)(state->undo_rec + state->redo_point)) >= buf_begin);
+      IM_ASSERT(((char*)(state->undo_rec + state->redo_point + 1) + move_size) <= buf_end);
+      STB_TEXTEDIT_memmove(state->undo_rec + state->redo_point+1, state->undo_rec + state->redo_point, move_size);
+
+      // now move redo_point to point to the new one
+      ++state->redo_point;
+   }
+}
+
+static StbUndoRecord *stb_text_create_undo_record(StbUndoState *state, int numchars)
+{
+   // any time we create a new undo record, we discard redo
+   stb_textedit_flush_redo(state);
+
+   // if we have no free records, we have to make room, by sliding the
+   // existing records down
+   if (state->undo_point == STB_TEXTEDIT_UNDOSTATECOUNT)
+      stb_textedit_discard_undo(state);
+
+   // if the characters to store won't possibly fit in the buffer, we can't undo
+   if (numchars > STB_TEXTEDIT_UNDOCHARCOUNT) {
+      state->undo_point = 0;
+      state->undo_char_point = 0;
+      return NULL;
+   }
+
+   // if we don't have enough free characters in the buffer, we have to make room
+   while (state->undo_char_point + numchars > STB_TEXTEDIT_UNDOCHARCOUNT)
+      stb_textedit_discard_undo(state);
+
+   return &state->undo_rec[state->undo_point++];
+}
+
+static STB_TEXTEDIT_CHARTYPE *stb_text_createundo(StbUndoState *state, int pos, int insert_len, int delete_len)
+{
+   StbUndoRecord *r = stb_text_create_undo_record(state, insert_len);
+   if (r == NULL)
+      return NULL;
+
+   r->where = pos;
+   r->insert_length = (STB_TEXTEDIT_POSITIONTYPE) insert_len;
+   r->delete_length = (STB_TEXTEDIT_POSITIONTYPE) delete_len;
+
+   if (insert_len == 0) {
+      r->char_storage = -1;
+      return NULL;
+   } else {
+      r->char_storage = state->undo_char_point;
+      state->undo_char_point += insert_len;
+      return &state->undo_char[r->char_storage];
+   }
+}
+
+static void stb_text_undo(STB_TEXTEDIT_STRING *str, STB_TexteditState *state)
+{
+   StbUndoState *s = &state->undostate;
+   StbUndoRecord u, *r;
+   if (s->undo_point == 0)
+      return;
+
+   // we need to do two things: apply the undo record, and create a redo record
+   u = s->undo_rec[s->undo_point-1];
+   r = &s->undo_rec[s->redo_point-1];
+   r->char_storage = -1;
+
+   r->insert_length = u.delete_length;
+   r->delete_length = u.insert_length;
+   r->where = u.where;
+
+   if (u.delete_length) {
+      // if the undo record says to delete characters, then the redo record will
+      // need to re-insert the characters that get deleted, so we need to store
+      // them.
+
+      // there are three cases:
+      //    there's enough room to store the characters
+      //    characters stored for *redoing* don't leave room for redo
+      //    characters stored for *undoing* don't leave room for redo
+      // if the last is true, we have to bail
+
+      if (s->undo_char_point + u.delete_length >= STB_TEXTEDIT_UNDOCHARCOUNT) {
+         // the undo records take up too much character space; there's no space to store the redo characters
+         r->insert_length = 0;
+      } else {
+         int i;
+
+         // there's definitely room to store the characters eventually
+         while (s->undo_char_point + u.delete_length > s->redo_char_point) {
+            // should never happen:
+            if (s->redo_point == STB_TEXTEDIT_UNDOSTATECOUNT)
+               return;
+            // there's currently not enough room, so discard a redo record
+            stb_textedit_discard_redo(s);
+         }
+         r = &s->undo_rec[s->redo_point-1];
+
+         r->char_storage = s->redo_char_point - u.delete_length;
+         s->redo_char_point = s->redo_char_point - u.delete_length;
+
+         // now save the characters
+         for (i=0; i < u.delete_length; ++i)
+            s->undo_char[r->char_storage + i] = STB_TEXTEDIT_GETCHAR(str, u.where + i);
+      }
+
+      // now we can carry out the deletion
+      STB_TEXTEDIT_DELETECHARS(str, u.where, u.delete_length);
+   }
+
+   // check type of recorded action:
+   if (u.insert_length) {
+      // easy case: was a deletion, so we need to insert n characters
+      STB_TEXTEDIT_INSERTCHARS(str, u.where, &s->undo_char[u.char_storage], u.insert_length);
+      s->undo_char_point -= u.insert_length;
+   }
+
+   state->cursor = u.where + u.insert_length;
+
+   s->undo_point--;
+   s->redo_point--;
+}
+
+static void stb_text_redo(STB_TEXTEDIT_STRING *str, STB_TexteditState *state)
+{
+   StbUndoState *s = &state->undostate;
+   StbUndoRecord *u, r;
+   if (s->redo_point == STB_TEXTEDIT_UNDOSTATECOUNT)
+      return;
+
+   // we need to do two things: apply the redo record, and create an undo record
+   u = &s->undo_rec[s->undo_point];
+   r = s->undo_rec[s->redo_point];
+
+   // we KNOW there must be room for the undo record, because the redo record
+   // was derived from an undo record
+
+   u->delete_length = r.insert_length;
+   u->insert_length = r.delete_length;
+   u->where = r.where;
+   u->char_storage = -1;
+
+   if (r.delete_length) {
+      // the redo record requires us to delete characters, so the undo record
+      // needs to store the characters
+
+      if (s->undo_char_point + u->insert_length > s->redo_char_point) {
+         u->insert_length = 0;
+         u->delete_length = 0;
+      } else {
+         int i;
+         u->char_storage = s->undo_char_point;
+         s->undo_char_point = s->undo_char_point + u->insert_length;
+
+         // now save the characters
+         for (i=0; i < u->insert_length; ++i)
+            s->undo_char[u->char_storage + i] = STB_TEXTEDIT_GETCHAR(str, u->where + i);
+      }
+
+      STB_TEXTEDIT_DELETECHARS(str, r.where, r.delete_length);
+   }
+
+   if (r.insert_length) {
+      // easy case: need to insert n characters
+      STB_TEXTEDIT_INSERTCHARS(str, r.where, &s->undo_char[r.char_storage], r.insert_length);
+      s->redo_char_point += r.insert_length;
+   }
+
+   state->cursor = r.where + r.insert_length;
+
+   s->undo_point++;
+   s->redo_point++;
+}
+
+static void stb_text_makeundo_insert(STB_TexteditState *state, int where, int length)
+{
+   stb_text_createundo(&state->undostate, where, 0, length);
+}
+
+static void stb_text_makeundo_delete(STB_TEXTEDIT_STRING *str, STB_TexteditState *state, int where, int length)
+{
+   int i;
+   STB_TEXTEDIT_CHARTYPE *p = stb_text_createundo(&state->undostate, where, length, 0);
+   if (p) {
+      for (i=0; i < length; ++i)
+         p[i] = STB_TEXTEDIT_GETCHAR(str, where+i);
+   }
+}
+
+static void stb_text_makeundo_replace(STB_TEXTEDIT_STRING *str, STB_TexteditState *state, int where, int old_length, int new_length)
+{
+   int i;
+   STB_TEXTEDIT_CHARTYPE *p = stb_text_createundo(&state->undostate, where, old_length, new_length);
+   if (p) {
+      for (i=0; i < old_length; ++i)
+         p[i] = STB_TEXTEDIT_GETCHAR(str, where+i);
+   }
+}
+
+// reset the state to default
+static void stb_textedit_clear_state(STB_TexteditState *state, int is_single_line)
+{
+   state->undostate.undo_point = 0;
+   state->undostate.undo_char_point = 0;
+   state->undostate.redo_point = STB_TEXTEDIT_UNDOSTATECOUNT;
+   state->undostate.redo_char_point = STB_TEXTEDIT_UNDOCHARCOUNT;
+   state->select_end = state->select_start = 0;
+   state->cursor = 0;
+   state->has_preferred_x = 0;
+   state->preferred_x = 0;
+   state->cursor_at_end_of_line = 0;
+   state->initialized = 1;
+   state->single_line = (unsigned char) is_single_line;
+   state->insert_mode = 0;
+   state->row_count_per_page = 0;
+}
+
+// API initialize
+static void stb_textedit_initialize_state(STB_TexteditState *state, int is_single_line)
+{
+   stb_textedit_clear_state(state, is_single_line);
+}
+
+#if defined(__GNUC__) || defined(__clang__)
+#pragma GCC diagnostic push
+#pragma GCC diagnostic ignored "-Wcast-qual"
+#endif
+
+static int stb_textedit_paste(STB_TEXTEDIT_STRING *str, STB_TexteditState *state, STB_TEXTEDIT_CHARTYPE const *ctext, int len)
+{
+   return stb_textedit_paste_internal(str, state, (STB_TEXTEDIT_CHARTYPE *) ctext, len);
+}
+
+#if defined(__GNUC__) || defined(__clang__)
+#pragma GCC diagnostic pop
+#endif
+
+#endif//STB_TEXTEDIT_IMPLEMENTATION
+
+/*
+------------------------------------------------------------------------------
+This software is available under 2 licenses -- choose whichever you prefer.
+------------------------------------------------------------------------------
+ALTERNATIVE A - MIT License
+Copyright (c) 2017 Sean Barrett
+Permission is hereby granted, free of charge, to any person obtaining a copy of
+this software and associated documentation files (the "Software"), to deal in
+the Software without restriction, including without limitation the rights to
+use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
+of the Software, and to permit persons to whom the Software is furnished to do
+so, subject to the following conditions:
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
+------------------------------------------------------------------------------
+ALTERNATIVE B - Public Domain (www.unlicense.org)
+This is free and unencumbered software released into the public domain.
+Anyone is free to copy, modify, publish, use, compile, sell, or distribute this
+software, either in source code form or as a compiled binary, for any purpose,
+commercial or non-commercial, and by any means.
+In jurisdictions that recognize copyright laws, the author or authors of this
+software dedicate any and all copyright interest in the software to the public
+domain. We make this dedication for the benefit of the public at large and to
+the detriment of our heirs and successors. We intend this dedication to be an
+overt act of relinquishment in perpetuity of all present and future rights to
+this software under copyright law.
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+------------------------------------------------------------------------------
+*/
diff --git a/tests/manual/rhi/shared/imgui/imgui/imstb_truetype.h b/tests/manual/rhi/shared/imgui/imgui/imstb_truetype.h
new file mode 100644
index 00000000..643d3789
--- /dev/null
+++ b/tests/manual/rhi/shared/imgui/imgui/imstb_truetype.h
@@ -0,0 +1,5085 @@
+// [DEAR IMGUI]
+// This is a slightly modified version of stb_truetype.h 1.26.
+// Mostly fixing for compiler and static analyzer warnings.
+// Grep for [DEAR IMGUI] to find the changes.
+
+// stb_truetype.h - v1.26 - public domain
+// authored from 2009-2021 by Sean Barrett / RAD Game Tools
+//
+// =======================================================================
+//
+//    NO SECURITY GUARANTEE -- DO NOT USE THIS ON UNTRUSTED FONT FILES
+//
+// This library does no range checking of the offsets found in the file,
+// meaning an attacker can use it to read arbitrary memory.
+//
+// =======================================================================
+//
+//   This library processes TrueType files:
+//        parse files
+//        extract glyph metrics
+//        extract glyph shapes
+//        render glyphs to one-channel bitmaps with antialiasing (box filter)
+//        render glyphs to one-channel SDF bitmaps (signed-distance field/function)
+//
+//   Todo:
+//        non-MS cmaps
+//        crashproof on bad data
+//        hinting? (no longer patented)
+//        cleartype-style AA?
+//        optimize: use simple memory allocator for intermediates
+//        optimize: build edge-list directly from curves
+//        optimize: rasterize directly from curves?
+//
+// ADDITIONAL CONTRIBUTORS
+//
+//   Mikko Mononen: compound shape support, more cmap formats
+//   Tor Andersson: kerning, subpixel rendering
+//   Dougall Johnson: OpenType / Type 2 font handling
+//   Daniel Ribeiro Maciel: basic GPOS-based kerning
+//
+//   Misc other:
+//       Ryan Gordon
+//       Simon Glass
+//       github:IntellectualKitty
+//       Imanol Celaya
+//       Daniel Ribeiro Maciel
+//
+//   Bug/warning reports/fixes:
+//       "Zer" on mollyrocket       Fabian "ryg" Giesen   github:NiLuJe
+//       Cass Everitt               Martins Mozeiko       github:aloucks
+//       stoiko (Haemimont Games)   Cap Petschulat        github:oyvindjam
+//       Brian Hook                 Omar Cornut           github:vassvik
+//       Walter van Niftrik         Ryan Griege
+//       David Gow                  Peter LaValle
+//       David Given                Sergey Popov
+//       Ivan-Assen Ivanov          Giumo X. Clanjor
+//       Anthony Pesch              Higor Euripedes
+//       Johan Duparc               Thomas Fields
+//       Hou Qiming                 Derek Vinyard
+//       Rob Loach                  Cort Stratton
+//       Kenney Phillis Jr.         Brian Costabile
+//       Ken Voskuil (kaesve)
+//
+// VERSION HISTORY
+//
+//   1.26 (2021-08-28) fix broken rasterizer
+//   1.25 (2021-07-11) many fixes
+//   1.24 (2020-02-05) fix warning
+//   1.23 (2020-02-02) query SVG data for glyphs; query whole kerning table (but only kern not GPOS)
+//   1.22 (2019-08-11) minimize missing-glyph duplication; fix kerning if both 'GPOS' and 'kern' are defined
+//   1.21 (2019-02-25) fix warning
+//   1.20 (2019-02-07) PackFontRange skips missing codepoints; GetScaleFontVMetrics()
+//   1.19 (2018-02-11) GPOS kerning, STBTT_fmod
+//   1.18 (2018-01-29) add missing function
+//   1.17 (2017-07-23) make more arguments const; doc fix
+//   1.16 (2017-07-12) SDF support
+//   1.15 (2017-03-03) make more arguments const
+//   1.14 (2017-01-16) num-fonts-in-TTC function
+//   1.13 (2017-01-02) support OpenType fonts, certain Apple fonts
+//   1.12 (2016-10-25) suppress warnings about casting away const with -Wcast-qual
+//   1.11 (2016-04-02) fix unused-variable warning
+//   1.10 (2016-04-02) user-defined fabs(); rare memory leak; remove duplicate typedef
+//   1.09 (2016-01-16) warning fix; avoid crash on outofmem; use allocation userdata properly
+//   1.08 (2015-09-13) document stbtt_Rasterize(); fixes for vertical & horizontal edges
+//   1.07 (2015-08-01) allow PackFontRanges to accept arrays of sparse codepoints;
+//                     variant PackFontRanges to pack and render in separate phases;
+//                     fix stbtt_GetFontOFfsetForIndex (never worked for non-0 input?);
+//                     fixed an assert() bug in the new rasterizer
+//                     replace assert() with STBTT_assert() in new rasterizer
+//
+//   Full history can be found at the end of this file.
+//
+// LICENSE
+//
+//   See end of file for license information.
+//
+// USAGE
+//
+//   Include this file in whatever places need to refer to it. In ONE C/C++
+//   file, write:
+//      #define STB_TRUETYPE_IMPLEMENTATION
+//   before the #include of this file. This expands out the actual
+//   implementation into that C/C++ file.
+//
+//   To make the implementation private to the file that generates the implementation,
+//      #define STBTT_STATIC
+//
+//   Simple 3D API (don't ship this, but it's fine for tools and quick start)
+//           stbtt_BakeFontBitmap()               -- bake a font to a bitmap for use as texture
+//           stbtt_GetBakedQuad()                 -- compute quad to draw for a given char
+//
+//   Improved 3D API (more shippable):
+//           #include "stb_rect_pack.h"           -- optional, but you really want it
+//           stbtt_PackBegin()
+//           stbtt_PackSetOversampling()          -- for improved quality on small fonts
+//           stbtt_PackFontRanges()               -- pack and renders
+//           stbtt_PackEnd()
+//           stbtt_GetPackedQuad()
+//
+//   "Load" a font file from a memory buffer (you have to keep the buffer loaded)
+//           stbtt_InitFont()
+//           stbtt_GetFontOffsetForIndex()        -- indexing for TTC font collections
+//           stbtt_GetNumberOfFonts()             -- number of fonts for TTC font collections
+//
+//   Render a unicode codepoint to a bitmap
+//           stbtt_GetCodepointBitmap()           -- allocates and returns a bitmap
+//           stbtt_MakeCodepointBitmap()          -- renders into bitmap you provide
+//           stbtt_GetCodepointBitmapBox()        -- how big the bitmap must be
+//
+//   Character advance/positioning
+//           stbtt_GetCodepointHMetrics()
+//           stbtt_GetFontVMetrics()
+//           stbtt_GetFontVMetricsOS2()
+//           stbtt_GetCodepointKernAdvance()
+//
+//   Starting with version 1.06, the rasterizer was replaced with a new,
+//   faster and generally-more-precise rasterizer. The new rasterizer more
+//   accurately measures pixel coverage for anti-aliasing, except in the case
+//   where multiple shapes overlap, in which case it overestimates the AA pixel
+//   coverage. Thus, anti-aliasing of intersecting shapes may look wrong. If
+//   this turns out to be a problem, you can re-enable the old rasterizer with
+//        #define STBTT_RASTERIZER_VERSION 1
+//   which will incur about a 15% speed hit.
+//
+// ADDITIONAL DOCUMENTATION
+//
+//   Immediately after this block comment are a series of sample programs.
+//
+//   After the sample programs is the "header file" section. This section
+//   includes documentation for each API function.
+//
+//   Some important concepts to understand to use this library:
+//
+//      Codepoint
+//         Characters are defined by unicode codepoints, e.g. 65 is
+//         uppercase A, 231 is lowercase c with a cedilla, 0x7e30 is
+//         the hiragana for "ma".
+//
+//      Glyph
+//         A visual character shape (every codepoint is rendered as
+//         some glyph)
+//
+//      Glyph index
+//         A font-specific integer ID representing a glyph
+//
+//      Baseline
+//         Glyph shapes are defined relative to a baseline, which is the
+//         bottom of uppercase characters. Characters extend both above
+//         and below the baseline.
+//
+//      Current Point
+//         As you draw text to the screen, you keep track of a "current point"
+//         which is the origin of each character. The current point's vertical
+//         position is the baseline. Even "baked fonts" use this model.
+//
+//      Vertical Font Metrics
+//         The vertical qualities of the font, used to vertically position
+//         and space the characters. See docs for stbtt_GetFontVMetrics.
+//
+//      Font Size in Pixels or Points
+//         The preferred interface for specifying font sizes in stb_truetype
+//         is to specify how tall the font's vertical extent should be in pixels.
+//         If that sounds good enough, skip the next paragraph.
+//
+//         Most font APIs instead use "points", which are a common typographic
+//         measurement for describing font size, defined as 72 points per inch.
+//         stb_truetype provides a point API for compatibility. However, true
+//         "per inch" conventions don't make much sense on computer displays
+//         since different monitors have different number of pixels per
+//         inch. For example, Windows traditionally uses a convention that
+//         there are 96 pixels per inch, thus making 'inch' measurements have
+//         nothing to do with inches, and thus effectively defining a point to
+//         be 1.333 pixels. Additionally, the TrueType font data provides
+//         an explicit scale factor to scale a given font's glyphs to points,
+//         but the author has observed that this scale factor is often wrong
+//         for non-commercial fonts, thus making fonts scaled in points
+//         according to the TrueType spec incoherently sized in practice.
+//
+// DETAILED USAGE:
+//
+//  Scale:
+//    Select how high you want the font to be, in points or pixels.
+//    Call ScaleForPixelHeight or ScaleForMappingEmToPixels to compute
+//    a scale factor SF that will be used by all other functions.
+//
+//  Baseline:
+//    You need to select a y-coordinate that is the baseline of where
+//    your text will appear. Call GetFontBoundingBox to get the baseline-relative
+//    bounding box for all characters. SF*-y0 will be the distance in pixels
+//    that the worst-case character could extend above the baseline, so if
+//    you want the top edge of characters to appear at the top of the
+//    screen where y=0, then you would set the baseline to SF*-y0.
+//
+//  Current point:
+//    Set the current point where the first character will appear. The
+//    first character could extend left of the current point; this is font
+//    dependent. You can either choose a current point that is the leftmost
+//    point and hope, or add some padding, or check the bounding box or
+//    left-side-bearing of the first character to be displayed and set
+//    the current point based on that.
+//
+//  Displaying a character:
+//    Compute the bounding box of the character. It will contain signed values
+//    relative to <current_point, baseline>. I.e. if it returns x0,y0,x1,y1,
+//    then the character should be displayed in the rectangle from
+//    <current_point+SF*x0, baseline+SF*y0> to <current_point+SF*x1,baseline+SF*y1).
+//
+//  Advancing for the next character:
+//    Call GlyphHMetrics, and compute 'current_point += SF * advance'.
+//
+//
+// ADVANCED USAGE
+//
+//   Quality:
+//
+//    - Use the functions with Subpixel at the end to allow your characters
+//      to have subpixel positioning. Since the font is anti-aliased, not
+//      hinted, this is very import for quality. (This is not possible with
+//      baked fonts.)
+//
+//    - Kerning is now supported, and if you're supporting subpixel rendering
+//      then kerning is worth using to give your text a polished look.
+//
+//   Performance:
+//
+//    - Convert Unicode codepoints to glyph indexes and operate on the glyphs;
+//      if you don't do this, stb_truetype is forced to do the conversion on
+//      every call.
+//
+//    - There are a lot of memory allocations. We should modify it to take
+//      a temp buffer and allocate from the temp buffer (without freeing),
+//      should help performance a lot.
+//
+// NOTES
+//
+//   The system uses the raw data found in the .ttf file without changing it
+//   and without building auxiliary data structures. This is a bit inefficient
+//   on little-endian systems (the data is big-endian), but assuming you're
+//   caching the bitmaps or glyph shapes this shouldn't be a big deal.
+//
+//   It appears to be very hard to programmatically determine what font a
+//   given file is in a general way. I provide an API for this, but I don't
+//   recommend it.
+//
+//
+// PERFORMANCE MEASUREMENTS FOR 1.06:
+//
+//                      32-bit     64-bit
+//   Previous release:  8.83 s     7.68 s
+//   Pool allocations:  7.72 s     6.34 s
+//   Inline sort     :  6.54 s     5.65 s
+//   New rasterizer  :  5.63 s     5.00 s
+
+//////////////////////////////////////////////////////////////////////////////
+//////////////////////////////////////////////////////////////////////////////
+////
+////  SAMPLE PROGRAMS
+////
+//
+//  Incomplete text-in-3d-api example, which draws quads properly aligned to be lossless.
+//  See "tests/truetype_demo_win32.c" for a complete version.
+#if 0
+#define STB_TRUETYPE_IMPLEMENTATION  // force following include to generate implementation
+#include "stb_truetype.h"
+
+unsigned char ttf_buffer[1<<20];
+unsigned char temp_bitmap[512*512];
+
+stbtt_bakedchar cdata[96]; // ASCII 32..126 is 95 glyphs
+GLuint ftex;
+
+void my_stbtt_initfont(void)
+{
+   fread(ttf_buffer, 1, 1<<20, fopen("c:/windows/fonts/times.ttf", "rb"));
+   stbtt_BakeFontBitmap(ttf_buffer,0, 32.0, temp_bitmap,512,512, 32,96, cdata); // no guarantee this fits!
+   // can free ttf_buffer at this point
+   glGenTextures(1, &ftex);
+   glBindTexture(GL_TEXTURE_2D, ftex);
+   glTexImage2D(GL_TEXTURE_2D, 0, GL_ALPHA, 512,512, 0, GL_ALPHA, GL_UNSIGNED_BYTE, temp_bitmap);
+   // can free temp_bitmap at this point
+   glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
+}
+
+void my_stbtt_print(float x, float y, char *text)
+{
+   // assume orthographic projection with units = screen pixels, origin at top left
+   glEnable(GL_BLEND);
+   glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
+   glEnable(GL_TEXTURE_2D);
+   glBindTexture(GL_TEXTURE_2D, ftex);
+   glBegin(GL_QUADS);
+   while (*text) {
+      if (*text >= 32 && *text < 128) {
+         stbtt_aligned_quad q;
+         stbtt_GetBakedQuad(cdata, 512,512, *text-32, &x,&y,&q,1);//1=opengl & d3d10+,0=d3d9
+         glTexCoord2f(q.s0,q.t0); glVertex2f(q.x0,q.y0);
+         glTexCoord2f(q.s1,q.t0); glVertex2f(q.x1,q.y0);
+         glTexCoord2f(q.s1,q.t1); glVertex2f(q.x1,q.y1);
+         glTexCoord2f(q.s0,q.t1); glVertex2f(q.x0,q.y1);
+      }
+      ++text;
+   }
+   glEnd();
+}
+#endif
+//
+//
+//////////////////////////////////////////////////////////////////////////////
+//
+// Complete program (this compiles): get a single bitmap, print as ASCII art
+//
+#if 0
+#include <stdio.h>
+#define STB_TRUETYPE_IMPLEMENTATION  // force following include to generate implementation
+#include "stb_truetype.h"
+
+char ttf_buffer[1<<25];
+
+int main(int argc, char **argv)
+{
+   stbtt_fontinfo font;
+   unsigned char *bitmap;
+   int w,h,i,j,c = (argc > 1 ? atoi(argv[1]) : 'a'), s = (argc > 2 ? atoi(argv[2]) : 20);
+
+   fread(ttf_buffer, 1, 1<<25, fopen(argc > 3 ? argv[3] : "c:/windows/fonts/arialbd.ttf", "rb"));
+
+   stbtt_InitFont(&font, ttf_buffer, stbtt_GetFontOffsetForIndex(ttf_buffer,0));
+   bitmap = stbtt_GetCodepointBitmap(&font, 0,stbtt_ScaleForPixelHeight(&font, s), c, &w, &h, 0,0);
+
+   for (j=0; j < h; ++j) {
+      for (i=0; i < w; ++i)
+         putchar(" .:ioVM@"[bitmap[j*w+i]>>5]);
+      putchar('\n');
+   }
+   return 0;
+}
+#endif
+//
+// Output:
+//
+//     .ii.
+//    @@@@@@.
+//   V@Mio@@o
+//   :i.  V@V
+//     :oM@@M
+//   :@@@MM@M
+//   @@o  o@M
+//  :@@.  M@M
+//   @@@o@@@@
+//   :M@@V:@@.
+//
+//////////////////////////////////////////////////////////////////////////////
+//
+// Complete program: print "Hello World!" banner, with bugs
+//
+#if 0
+char buffer[24<<20];
+unsigned char screen[20][79];
+
+int main(int arg, char **argv)
+{
+   stbtt_fontinfo font;
+   int i,j,ascent,baseline,ch=0;
+   float scale, xpos=2; // leave a little padding in case the character extends left
+   char *text = "Heljo World!"; // intentionally misspelled to show 'lj' brokenness
+
+   fread(buffer, 1, 1000000, fopen("c:/windows/fonts/arialbd.ttf", "rb"));
+   stbtt_InitFont(&font, buffer, 0);
+
+   scale = stbtt_ScaleForPixelHeight(&font, 15);
+   stbtt_GetFontVMetrics(&font, &ascent,0,0);
+   baseline = (int) (ascent*scale);
+
+   while (text[ch]) {
+      int advance,lsb,x0,y0,x1,y1;
+      float x_shift = xpos - (float) floor(xpos);
+      stbtt_GetCodepointHMetrics(&font, text[ch], &advance, &lsb);
+      stbtt_GetCodepointBitmapBoxSubpixel(&font, text[ch], scale,scale,x_shift,0, &x0,&y0,&x1,&y1);
+      stbtt_MakeCodepointBitmapSubpixel(&font, &screen[baseline + y0][(int) xpos + x0], x1-x0,y1-y0, 79, scale,scale,x_shift,0, text[ch]);
+      // note that this stomps the old data, so where character boxes overlap (e.g. 'lj') it's wrong
+      // because this API is really for baking character bitmaps into textures. if you want to render
+      // a sequence of characters, you really need to render each bitmap to a temp buffer, then
+      // "alpha blend" that into the working buffer
+      xpos += (advance * scale);
+      if (text[ch+1])
+         xpos += scale*stbtt_GetCodepointKernAdvance(&font, text[ch],text[ch+1]);
+      ++ch;
+   }
+
+   for (j=0; j < 20; ++j) {
+      for (i=0; i < 78; ++i)
+         putchar(" .:ioVM@"[screen[j][i]>>5]);
+      putchar('\n');
+   }
+
+   return 0;
+}
+#endif
+
+
+//////////////////////////////////////////////////////////////////////////////
+//////////////////////////////////////////////////////////////////////////////
+////
+////   INTEGRATION WITH YOUR CODEBASE
+////
+////   The following sections allow you to supply alternate definitions
+////   of C library functions used by stb_truetype, e.g. if you don't
+////   link with the C runtime library.
+
+#ifdef STB_TRUETYPE_IMPLEMENTATION
+   // #define your own (u)stbtt_int8/16/32 before including to override this
+   #ifndef stbtt_uint8
+   typedef unsigned char   stbtt_uint8;
+   typedef signed   char   stbtt_int8;
+   typedef unsigned short  stbtt_uint16;
+   typedef signed   short  stbtt_int16;
+   typedef unsigned int    stbtt_uint32;
+   typedef signed   int    stbtt_int32;
+   #endif
+
+   typedef char stbtt__check_size32[sizeof(stbtt_int32)==4 ? 1 : -1];
+   typedef char stbtt__check_size16[sizeof(stbtt_int16)==2 ? 1 : -1];
+
+   // e.g. #define your own STBTT_ifloor/STBTT_iceil() to avoid math.h
+   #ifndef STBTT_ifloor
+   #include <math.h>
+   #define STBTT_ifloor(x)   ((int) floor(x))
+   #define STBTT_iceil(x)    ((int) ceil(x))
+   #endif
+
+   #ifndef STBTT_sqrt
+   #include <math.h>
+   #define STBTT_sqrt(x)      sqrt(x)
+   #define STBTT_pow(x,y)     pow(x,y)
+   #endif
+
+   #ifndef STBTT_fmod
+   #include <math.h>
+   #define STBTT_fmod(x,y)    fmod(x,y)
+   #endif
+
+   #ifndef STBTT_cos
+   #include <math.h>
+   #define STBTT_cos(x)       cos(x)
+   #define STBTT_acos(x)      acos(x)
+   #endif
+
+   #ifndef STBTT_fabs
+   #include <math.h>
+   #define STBTT_fabs(x)      fabs(x)
+   #endif
+
+   // #define your own functions "STBTT_malloc" / "STBTT_free" to avoid malloc.h
+   #ifndef STBTT_malloc
+   #include <stdlib.h>
+   #define STBTT_malloc(x,u)  ((void)(u),malloc(x))
+   #define STBTT_free(x,u)    ((void)(u),free(x))
+   #endif
+
+   #ifndef STBTT_assert
+   #include <assert.h>
+   #define STBTT_assert(x)    assert(x)
+   #endif
+
+   #ifndef STBTT_strlen
+   #include <string.h>
+   #define STBTT_strlen(x)    strlen(x)
+   #endif
+
+   #ifndef STBTT_memcpy
+   #include <string.h>
+   #define STBTT_memcpy       memcpy
+   #define STBTT_memset       memset
+   #endif
+#endif
+
+///////////////////////////////////////////////////////////////////////////////
+///////////////////////////////////////////////////////////////////////////////
+////
+////   INTERFACE
+////
+////
+
+#ifndef __STB_INCLUDE_STB_TRUETYPE_H__
+#define __STB_INCLUDE_STB_TRUETYPE_H__
+
+#ifdef STBTT_STATIC
+#define STBTT_DEF static
+#else
+#define STBTT_DEF extern
+#endif
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+// private structure
+typedef struct
+{
+   unsigned char *data;
+   int cursor;
+   int size;
+} stbtt__buf;
+
+//////////////////////////////////////////////////////////////////////////////
+//
+// TEXTURE BAKING API
+//
+// If you use this API, you only have to call two functions ever.
+//
+
+typedef struct
+{
+   unsigned short x0,y0,x1,y1; // coordinates of bbox in bitmap
+   float xoff,yoff,xadvance;
+} stbtt_bakedchar;
+
+STBTT_DEF int stbtt_BakeFontBitmap(const unsigned char *data, int offset,  // font location (use offset=0 for plain .ttf)
+                                float pixel_height,                     // height of font in pixels
+                                unsigned char *pixels, int pw, int ph,  // bitmap to be filled in
+                                int first_char, int num_chars,          // characters to bake
+                                stbtt_bakedchar *chardata);             // you allocate this, it's num_chars long
+// if return is positive, the first unused row of the bitmap
+// if return is negative, returns the negative of the number of characters that fit
+// if return is 0, no characters fit and no rows were used
+// This uses a very crappy packing.
+
+typedef struct
+{
+   float x0,y0,s0,t0; // top-left
+   float x1,y1,s1,t1; // bottom-right
+} stbtt_aligned_quad;
+
+STBTT_DEF void stbtt_GetBakedQuad(const stbtt_bakedchar *chardata, int pw, int ph,  // same data as above
+                               int char_index,             // character to display
+                               float *xpos, float *ypos,   // pointers to current position in screen pixel space
+                               stbtt_aligned_quad *q,      // output: quad to draw
+                               int opengl_fillrule);       // true if opengl fill rule; false if DX9 or earlier
+// Call GetBakedQuad with char_index = 'character - first_char', and it
+// creates the quad you need to draw and advances the current position.
+//
+// The coordinate system used assumes y increases downwards.
+//
+// Characters will extend both above and below the current position;
+// see discussion of "BASELINE" above.
+//
+// It's inefficient; you might want to c&p it and optimize it.
+
+STBTT_DEF void stbtt_GetScaledFontVMetrics(const unsigned char *fontdata, int index, float size, float *ascent, float *descent, float *lineGap);
+// Query the font vertical metrics without having to create a font first.
+
+
+//////////////////////////////////////////////////////////////////////////////
+//
+// NEW TEXTURE BAKING API
+//
+// This provides options for packing multiple fonts into one atlas, not
+// perfectly but better than nothing.
+
+typedef struct
+{
+   unsigned short x0,y0,x1,y1; // coordinates of bbox in bitmap
+   float xoff,yoff,xadvance;
+   float xoff2,yoff2;
+} stbtt_packedchar;
+
+typedef struct stbtt_pack_context stbtt_pack_context;
+typedef struct stbtt_fontinfo stbtt_fontinfo;
+#ifndef STB_RECT_PACK_VERSION
+typedef struct stbrp_rect stbrp_rect;
+#endif
+
+STBTT_DEF int  stbtt_PackBegin(stbtt_pack_context *spc, unsigned char *pixels, int width, int height, int stride_in_bytes, int padding, void *alloc_context);
+// Initializes a packing context stored in the passed-in stbtt_pack_context.
+// Future calls using this context will pack characters into the bitmap passed
+// in here: a 1-channel bitmap that is width * height. stride_in_bytes is
+// the distance from one row to the next (or 0 to mean they are packed tightly
+// together). "padding" is the amount of padding to leave between each
+// character (normally you want '1' for bitmaps you'll use as textures with
+// bilinear filtering).
+//
+// Returns 0 on failure, 1 on success.
+
+STBTT_DEF void stbtt_PackEnd  (stbtt_pack_context *spc);
+// Cleans up the packing context and frees all memory.
+
+#define STBTT_POINT_SIZE(x)   (-(x))
+
+STBTT_DEF int  stbtt_PackFontRange(stbtt_pack_context *spc, const unsigned char *fontdata, int font_index, float font_size,
+                                int first_unicode_char_in_range, int num_chars_in_range, stbtt_packedchar *chardata_for_range);
+// Creates character bitmaps from the font_index'th font found in fontdata (use
+// font_index=0 if you don't know what that is). It creates num_chars_in_range
+// bitmaps for characters with unicode values starting at first_unicode_char_in_range
+// and increasing. Data for how to render them is stored in chardata_for_range;
+// pass these to stbtt_GetPackedQuad to get back renderable quads.
+//
+// font_size is the full height of the character from ascender to descender,
+// as computed by stbtt_ScaleForPixelHeight. To use a point size as computed
+// by stbtt_ScaleForMappingEmToPixels, wrap the point size in STBTT_POINT_SIZE()
+// and pass that result as 'font_size':
+//       ...,                  20 , ... // font max minus min y is 20 pixels tall
+//       ..., STBTT_POINT_SIZE(20), ... // 'M' is 20 pixels tall
+
+typedef struct
+{
+   float font_size;
+   int first_unicode_codepoint_in_range;  // if non-zero, then the chars are continuous, and this is the first codepoint
+   int *array_of_unicode_codepoints;       // if non-zero, then this is an array of unicode codepoints
+   int num_chars;
+   stbtt_packedchar *chardata_for_range; // output
+   unsigned char h_oversample, v_oversample; // don't set these, they're used internally
+} stbtt_pack_range;
+
+STBTT_DEF int  stbtt_PackFontRanges(stbtt_pack_context *spc, const unsigned char *fontdata, int font_index, stbtt_pack_range *ranges, int num_ranges);
+// Creates character bitmaps from multiple ranges of characters stored in
+// ranges. This will usually create a better-packed bitmap than multiple
+// calls to stbtt_PackFontRange. Note that you can call this multiple
+// times within a single PackBegin/PackEnd.
+
+STBTT_DEF void stbtt_PackSetOversampling(stbtt_pack_context *spc, unsigned int h_oversample, unsigned int v_oversample);
+// Oversampling a font increases the quality by allowing higher-quality subpixel
+// positioning, and is especially valuable at smaller text sizes.
+//
+// This function sets the amount of oversampling for all following calls to
+// stbtt_PackFontRange(s) or stbtt_PackFontRangesGatherRects for a given
+// pack context. The default (no oversampling) is achieved by h_oversample=1
+// and v_oversample=1. The total number of pixels required is
+// h_oversample*v_oversample larger than the default; for example, 2x2
+// oversampling requires 4x the storage of 1x1. For best results, render
+// oversampled textures with bilinear filtering. Look at the readme in
+// stb/tests/oversample for information about oversampled fonts
+//
+// To use with PackFontRangesGather etc., you must set it before calls
+// call to PackFontRangesGatherRects.
+
+STBTT_DEF void stbtt_PackSetSkipMissingCodepoints(stbtt_pack_context *spc, int skip);
+// If skip != 0, this tells stb_truetype to skip any codepoints for which
+// there is no corresponding glyph. If skip=0, which is the default, then
+// codepoints without a glyph recived the font's "missing character" glyph,
+// typically an empty box by convention.
+
+STBTT_DEF void stbtt_GetPackedQuad(const stbtt_packedchar *chardata, int pw, int ph,  // same data as above
+                               int char_index,             // character to display
+                               float *xpos, float *ypos,   // pointers to current position in screen pixel space
+                               stbtt_aligned_quad *q,      // output: quad to draw
+                               int align_to_integer);
+
+STBTT_DEF int  stbtt_PackFontRangesGatherRects(stbtt_pack_context *spc, const stbtt_fontinfo *info, stbtt_pack_range *ranges, int num_ranges, stbrp_rect *rects);
+STBTT_DEF void stbtt_PackFontRangesPackRects(stbtt_pack_context *spc, stbrp_rect *rects, int num_rects);
+STBTT_DEF int  stbtt_PackFontRangesRenderIntoRects(stbtt_pack_context *spc, const stbtt_fontinfo *info, stbtt_pack_range *ranges, int num_ranges, stbrp_rect *rects);
+// Calling these functions in sequence is roughly equivalent to calling
+// stbtt_PackFontRanges(). If you more control over the packing of multiple
+// fonts, or if you want to pack custom data into a font texture, take a look
+// at the source to of stbtt_PackFontRanges() and create a custom version
+// using these functions, e.g. call GatherRects multiple times,
+// building up a single array of rects, then call PackRects once,
+// then call RenderIntoRects repeatedly. This may result in a
+// better packing than calling PackFontRanges multiple times
+// (or it may not).
+
+// this is an opaque structure that you shouldn't mess with which holds
+// all the context needed from PackBegin to PackEnd.
+struct stbtt_pack_context {
+   void *user_allocator_context;
+   void *pack_info;
+   int   width;
+   int   height;
+   int   stride_in_bytes;
+   int   padding;
+   int   skip_missing;
+   unsigned int   h_oversample, v_oversample;
+   unsigned char *pixels;
+   void  *nodes;
+};
+
+//////////////////////////////////////////////////////////////////////////////
+//
+// FONT LOADING
+//
+//
+
+STBTT_DEF int stbtt_GetNumberOfFonts(const unsigned char *data);
+// This function will determine the number of fonts in a font file.  TrueType
+// collection (.ttc) files may contain multiple fonts, while TrueType font
+// (.ttf) files only contain one font. The number of fonts can be used for
+// indexing with the previous function where the index is between zero and one
+// less than the total fonts. If an error occurs, -1 is returned.
+
+STBTT_DEF int stbtt_GetFontOffsetForIndex(const unsigned char *data, int index);
+// Each .ttf/.ttc file may have more than one font. Each font has a sequential
+// index number starting from 0. Call this function to get the font offset for
+// a given index; it returns -1 if the index is out of range. A regular .ttf
+// file will only define one font and it always be at offset 0, so it will
+// return '0' for index 0, and -1 for all other indices.
+
+// The following structure is defined publicly so you can declare one on
+// the stack or as a global or etc, but you should treat it as opaque.
+struct stbtt_fontinfo
+{
+   void           * userdata;
+   unsigned char  * data;              // pointer to .ttf file
+   int              fontstart;         // offset of start of font
+
+   int numGlyphs;                     // number of glyphs, needed for range checking
+
+   int loca,head,glyf,hhea,hmtx,kern,gpos,svg; // table locations as offset from start of .ttf
+   int index_map;                     // a cmap mapping for our chosen character encoding
+   int indexToLocFormat;              // format needed to map from glyph index to glyph
+
+   stbtt__buf cff;                    // cff font data
+   stbtt__buf charstrings;            // the charstring index
+   stbtt__buf gsubrs;                 // global charstring subroutines index
+   stbtt__buf subrs;                  // private charstring subroutines index
+   stbtt__buf fontdicts;              // array of font dicts
+   stbtt__buf fdselect;               // map from glyph to fontdict
+};
+
+STBTT_DEF int stbtt_InitFont(stbtt_fontinfo *info, const unsigned char *data, int offset);
+// Given an offset into the file that defines a font, this function builds
+// the necessary cached info for the rest of the system. You must allocate
+// the stbtt_fontinfo yourself, and stbtt_InitFont will fill it out. You don't
+// need to do anything special to free it, because the contents are pure
+// value data with no additional data structures. Returns 0 on failure.
+
+
+//////////////////////////////////////////////////////////////////////////////
+//
+// CHARACTER TO GLYPH-INDEX CONVERSIOn
+
+STBTT_DEF int stbtt_FindGlyphIndex(const stbtt_fontinfo *info, int unicode_codepoint);
+// If you're going to perform multiple operations on the same character
+// and you want a speed-up, call this function with the character you're
+// going to process, then use glyph-based functions instead of the
+// codepoint-based functions.
+// Returns 0 if the character codepoint is not defined in the font.
+
+
+//////////////////////////////////////////////////////////////////////////////
+//
+// CHARACTER PROPERTIES
+//
+
+STBTT_DEF float stbtt_ScaleForPixelHeight(const stbtt_fontinfo *info, float pixels);
+// computes a scale factor to produce a font whose "height" is 'pixels' tall.
+// Height is measured as the distance from the highest ascender to the lowest
+// descender; in other words, it's equivalent to calling stbtt_GetFontVMetrics
+// and computing:
+//       scale = pixels / (ascent - descent)
+// so if you prefer to measure height by the ascent only, use a similar calculation.
+
+STBTT_DEF float stbtt_ScaleForMappingEmToPixels(const stbtt_fontinfo *info, float pixels);
+// computes a scale factor to produce a font whose EM size is mapped to
+// 'pixels' tall. This is probably what traditional APIs compute, but
+// I'm not positive.
+
+STBTT_DEF void stbtt_GetFontVMetrics(const stbtt_fontinfo *info, int *ascent, int *descent, int *lineGap);
+// ascent is the coordinate above the baseline the font extends; descent
+// is the coordinate below the baseline the font extends (i.e. it is typically negative)
+// lineGap is the spacing between one row's descent and the next row's ascent...
+// so you should advance the vertical position by "*ascent - *descent + *lineGap"
+//   these are expressed in unscaled coordinates, so you must multiply by
+//   the scale factor for a given size
+
+STBTT_DEF int  stbtt_GetFontVMetricsOS2(const stbtt_fontinfo *info, int *typoAscent, int *typoDescent, int *typoLineGap);
+// analogous to GetFontVMetrics, but returns the "typographic" values from the OS/2
+// table (specific to MS/Windows TTF files).
+//
+// Returns 1 on success (table present), 0 on failure.
+
+STBTT_DEF void stbtt_GetFontBoundingBox(const stbtt_fontinfo *info, int *x0, int *y0, int *x1, int *y1);
+// the bounding box around all possible characters
+
+STBTT_DEF void stbtt_GetCodepointHMetrics(const stbtt_fontinfo *info, int codepoint, int *advanceWidth, int *leftSideBearing);
+// leftSideBearing is the offset from the current horizontal position to the left edge of the character
+// advanceWidth is the offset from the current horizontal position to the next horizontal position
+//   these are expressed in unscaled coordinates
+
+STBTT_DEF int  stbtt_GetCodepointKernAdvance(const stbtt_fontinfo *info, int ch1, int ch2);
+// an additional amount to add to the 'advance' value between ch1 and ch2
+
+STBTT_DEF int stbtt_GetCodepointBox(const stbtt_fontinfo *info, int codepoint, int *x0, int *y0, int *x1, int *y1);
+// Gets the bounding box of the visible part of the glyph, in unscaled coordinates
+
+STBTT_DEF void stbtt_GetGlyphHMetrics(const stbtt_fontinfo *info, int glyph_index, int *advanceWidth, int *leftSideBearing);
+STBTT_DEF int  stbtt_GetGlyphKernAdvance(const stbtt_fontinfo *info, int glyph1, int glyph2);
+STBTT_DEF int  stbtt_GetGlyphBox(const stbtt_fontinfo *info, int glyph_index, int *x0, int *y0, int *x1, int *y1);
+// as above, but takes one or more glyph indices for greater efficiency
+
+typedef struct stbtt_kerningentry
+{
+   int glyph1; // use stbtt_FindGlyphIndex
+   int glyph2;
+   int advance;
+} stbtt_kerningentry;
+
+STBTT_DEF int  stbtt_GetKerningTableLength(const stbtt_fontinfo *info);
+STBTT_DEF int  stbtt_GetKerningTable(const stbtt_fontinfo *info, stbtt_kerningentry* table, int table_length);
+// Retrieves a complete list of all of the kerning pairs provided by the font
+// stbtt_GetKerningTable never writes more than table_length entries and returns how many entries it did write.
+// The table will be sorted by (a.glyph1 == b.glyph1)?(a.glyph2 < b.glyph2):(a.glyph1 < b.glyph1)
+
+//////////////////////////////////////////////////////////////////////////////
+//
+// GLYPH SHAPES (you probably don't need these, but they have to go before
+// the bitmaps for C declaration-order reasons)
+//
+
+#ifndef STBTT_vmove // you can predefine these to use different values (but why?)
+   enum {
+      STBTT_vmove=1,
+      STBTT_vline,
+      STBTT_vcurve,
+      STBTT_vcubic
+   };
+#endif
+
+#ifndef stbtt_vertex // you can predefine this to use different values
+                   // (we share this with other code at RAD)
+   #define stbtt_vertex_type short // can't use stbtt_int16 because that's not visible in the header file
+   typedef struct
+   {
+      stbtt_vertex_type x,y,cx,cy,cx1,cy1;
+      unsigned char type,padding;
+   } stbtt_vertex;
+#endif
+
+STBTT_DEF int stbtt_IsGlyphEmpty(const stbtt_fontinfo *info, int glyph_index);
+// returns non-zero if nothing is drawn for this glyph
+
+STBTT_DEF int stbtt_GetCodepointShape(const stbtt_fontinfo *info, int unicode_codepoint, stbtt_vertex **vertices);
+STBTT_DEF int stbtt_GetGlyphShape(const stbtt_fontinfo *info, int glyph_index, stbtt_vertex **vertices);
+// returns # of vertices and fills *vertices with the pointer to them
+//   these are expressed in "unscaled" coordinates
+//
+// The shape is a series of contours. Each one starts with
+// a STBTT_moveto, then consists of a series of mixed
+// STBTT_lineto and STBTT_curveto segments. A lineto
+// draws a line from previous endpoint to its x,y; a curveto
+// draws a quadratic bezier from previous endpoint to
+// its x,y, using cx,cy as the bezier control point.
+
+STBTT_DEF void stbtt_FreeShape(const stbtt_fontinfo *info, stbtt_vertex *vertices);
+// frees the data allocated above
+
+STBTT_DEF unsigned char *stbtt_FindSVGDoc(const stbtt_fontinfo *info, int gl);
+STBTT_DEF int stbtt_GetCodepointSVG(const stbtt_fontinfo *info, int unicode_codepoint, const char **svg);
+STBTT_DEF int stbtt_GetGlyphSVG(const stbtt_fontinfo *info, int gl, const char **svg);
+// fills svg with the character's SVG data.
+// returns data size or 0 if SVG not found.
+
+//////////////////////////////////////////////////////////////////////////////
+//
+// BITMAP RENDERING
+//
+
+STBTT_DEF void stbtt_FreeBitmap(unsigned char *bitmap, void *userdata);
+// frees the bitmap allocated below
+
+STBTT_DEF unsigned char *stbtt_GetCodepointBitmap(const stbtt_fontinfo *info, float scale_x, float scale_y, int codepoint, int *width, int *height, int *xoff, int *yoff);
+// allocates a large-enough single-channel 8bpp bitmap and renders the
+// specified character/glyph at the specified scale into it, with
+// antialiasing. 0 is no coverage (transparent), 255 is fully covered (opaque).
+// *width & *height are filled out with the width & height of the bitmap,
+// which is stored left-to-right, top-to-bottom.
+//
+// xoff/yoff are the offset it pixel space from the glyph origin to the top-left of the bitmap
+
+STBTT_DEF unsigned char *stbtt_GetCodepointBitmapSubpixel(const stbtt_fontinfo *info, float scale_x, float scale_y, float shift_x, float shift_y, int codepoint, int *width, int *height, int *xoff, int *yoff);
+// the same as stbtt_GetCodepoitnBitmap, but you can specify a subpixel
+// shift for the character
+
+STBTT_DEF void stbtt_MakeCodepointBitmap(const stbtt_fontinfo *info, unsigned char *output, int out_w, int out_h, int out_stride, float scale_x, float scale_y, int codepoint);
+// the same as stbtt_GetCodepointBitmap, but you pass in storage for the bitmap
+// in the form of 'output', with row spacing of 'out_stride' bytes. the bitmap
+// is clipped to out_w/out_h bytes. Call stbtt_GetCodepointBitmapBox to get the
+// width and height and positioning info for it first.
+
+STBTT_DEF void stbtt_MakeCodepointBitmapSubpixel(const stbtt_fontinfo *info, unsigned char *output, int out_w, int out_h, int out_stride, float scale_x, float scale_y, float shift_x, float shift_y, int codepoint);
+// same as stbtt_MakeCodepointBitmap, but you can specify a subpixel
+// shift for the character
+
+STBTT_DEF void stbtt_MakeCodepointBitmapSubpixelPrefilter(const stbtt_fontinfo *info, unsigned char *output, int out_w, int out_h, int out_stride, float scale_x, float scale_y, float shift_x, float shift_y, int oversample_x, int oversample_y, float *sub_x, float *sub_y, int codepoint);
+// same as stbtt_MakeCodepointBitmapSubpixel, but prefiltering
+// is performed (see stbtt_PackSetOversampling)
+
+STBTT_DEF void stbtt_GetCodepointBitmapBox(const stbtt_fontinfo *font, int codepoint, float scale_x, float scale_y, int *ix0, int *iy0, int *ix1, int *iy1);
+// get the bbox of the bitmap centered around the glyph origin; so the
+// bitmap width is ix1-ix0, height is iy1-iy0, and location to place
+// the bitmap top left is (leftSideBearing*scale,iy0).
+// (Note that the bitmap uses y-increases-down, but the shape uses
+// y-increases-up, so CodepointBitmapBox and CodepointBox are inverted.)
+
+STBTT_DEF void stbtt_GetCodepointBitmapBoxSubpixel(const stbtt_fontinfo *font, int codepoint, float scale_x, float scale_y, float shift_x, float shift_y, int *ix0, int *iy0, int *ix1, int *iy1);
+// same as stbtt_GetCodepointBitmapBox, but you can specify a subpixel
+// shift for the character
+
+// the following functions are equivalent to the above functions, but operate
+// on glyph indices instead of Unicode codepoints (for efficiency)
+STBTT_DEF unsigned char *stbtt_GetGlyphBitmap(const stbtt_fontinfo *info, float scale_x, float scale_y, int glyph, int *width, int *height, int *xoff, int *yoff);
+STBTT_DEF unsigned char *stbtt_GetGlyphBitmapSubpixel(const stbtt_fontinfo *info, float scale_x, float scale_y, float shift_x, float shift_y, int glyph, int *width, int *height, int *xoff, int *yoff);
+STBTT_DEF void stbtt_MakeGlyphBitmap(const stbtt_fontinfo *info, unsigned char *output, int out_w, int out_h, int out_stride, float scale_x, float scale_y, int glyph);
+STBTT_DEF void stbtt_MakeGlyphBitmapSubpixel(const stbtt_fontinfo *info, unsigned char *output, int out_w, int out_h, int out_stride, float scale_x, float scale_y, float shift_x, float shift_y, int glyph);
+STBTT_DEF void stbtt_MakeGlyphBitmapSubpixelPrefilter(const stbtt_fontinfo *info, unsigned char *output, int out_w, int out_h, int out_stride, float scale_x, float scale_y, float shift_x, float shift_y, int oversample_x, int oversample_y, float *sub_x, float *sub_y, int glyph);
+STBTT_DEF void stbtt_GetGlyphBitmapBox(const stbtt_fontinfo *font, int glyph, float scale_x, float scale_y, int *ix0, int *iy0, int *ix1, int *iy1);
+STBTT_DEF void stbtt_GetGlyphBitmapBoxSubpixel(const stbtt_fontinfo *font, int glyph, float scale_x, float scale_y,float shift_x, float shift_y, int *ix0, int *iy0, int *ix1, int *iy1);
+
+
+// @TODO: don't expose this structure
+typedef struct
+{
+   int w,h,stride;
+   unsigned char *pixels;
+} stbtt__bitmap;
+
+// rasterize a shape with quadratic beziers into a bitmap
+STBTT_DEF void stbtt_Rasterize(stbtt__bitmap *result,        // 1-channel bitmap to draw into
+                               float flatness_in_pixels,     // allowable error of curve in pixels
+                               stbtt_vertex *vertices,       // array of vertices defining shape
+                               int num_verts,                // number of vertices in above array
+                               float scale_x, float scale_y, // scale applied to input vertices
+                               float shift_x, float shift_y, // translation applied to input vertices
+                               int x_off, int y_off,         // another translation applied to input
+                               int invert,                   // if non-zero, vertically flip shape
+                               void *userdata);              // context for to STBTT_MALLOC
+
+//////////////////////////////////////////////////////////////////////////////
+//
+// Signed Distance Function (or Field) rendering
+
+STBTT_DEF void stbtt_FreeSDF(unsigned char *bitmap, void *userdata);
+// frees the SDF bitmap allocated below
+
+STBTT_DEF unsigned char * stbtt_GetGlyphSDF(const stbtt_fontinfo *info, float scale, int glyph, int padding, unsigned char onedge_value, float pixel_dist_scale, int *width, int *height, int *xoff, int *yoff);
+STBTT_DEF unsigned char * stbtt_GetCodepointSDF(const stbtt_fontinfo *info, float scale, int codepoint, int padding, unsigned char onedge_value, float pixel_dist_scale, int *width, int *height, int *xoff, int *yoff);
+// These functions compute a discretized SDF field for a single character, suitable for storing
+// in a single-channel texture, sampling with bilinear filtering, and testing against
+// larger than some threshold to produce scalable fonts.
+//        info              --  the font
+//        scale             --  controls the size of the resulting SDF bitmap, same as it would be creating a regular bitmap
+//        glyph/codepoint   --  the character to generate the SDF for
+//        padding           --  extra "pixels" around the character which are filled with the distance to the character (not 0),
+//                                 which allows effects like bit outlines
+//        onedge_value      --  value 0-255 to test the SDF against to reconstruct the character (i.e. the isocontour of the character)
+//        pixel_dist_scale  --  what value the SDF should increase by when moving one SDF "pixel" away from the edge (on the 0..255 scale)
+//                                 if positive, > onedge_value is inside; if negative, < onedge_value is inside
+//        width,height      --  output height & width of the SDF bitmap (including padding)
+//        xoff,yoff         --  output origin of the character
+//        return value      --  a 2D array of bytes 0..255, width*height in size
+//
+// pixel_dist_scale & onedge_value are a scale & bias that allows you to make
+// optimal use of the limited 0..255 for your application, trading off precision
+// and special effects. SDF values outside the range 0..255 are clamped to 0..255.
+//
+// Example:
+//      scale = stbtt_ScaleForPixelHeight(22)
+//      padding = 5
+//      onedge_value = 180
+//      pixel_dist_scale = 180/5.0 = 36.0
+//
+//      This will create an SDF bitmap in which the character is about 22 pixels
+//      high but the whole bitmap is about 22+5+5=32 pixels high. To produce a filled
+//      shape, sample the SDF at each pixel and fill the pixel if the SDF value
+//      is greater than or equal to 180/255. (You'll actually want to antialias,
+//      which is beyond the scope of this example.) Additionally, you can compute
+//      offset outlines (e.g. to stroke the character border inside & outside,
+//      or only outside). For example, to fill outside the character up to 3 SDF
+//      pixels, you would compare against (180-36.0*3)/255 = 72/255. The above
+//      choice of variables maps a range from 5 pixels outside the shape to
+//      2 pixels inside the shape to 0..255; this is intended primarily for apply
+//      outside effects only (the interior range is needed to allow proper
+//      antialiasing of the font at *smaller* sizes)
+//
+// The function computes the SDF analytically at each SDF pixel, not by e.g.
+// building a higher-res bitmap and approximating it. In theory the quality
+// should be as high as possible for an SDF of this size & representation, but
+// unclear if this is true in practice (perhaps building a higher-res bitmap
+// and computing from that can allow drop-out prevention).
+//
+// The algorithm has not been optimized at all, so expect it to be slow
+// if computing lots of characters or very large sizes.
+
+
+
+//////////////////////////////////////////////////////////////////////////////
+//
+// Finding the right font...
+//
+// You should really just solve this offline, keep your own tables
+// of what font is what, and don't try to get it out of the .ttf file.
+// That's because getting it out of the .ttf file is really hard, because
+// the names in the file can appear in many possible encodings, in many
+// possible languages, and e.g. if you need a case-insensitive comparison,
+// the details of that depend on the encoding & language in a complex way
+// (actually underspecified in truetype, but also gigantic).
+//
+// But you can use the provided functions in two possible ways:
+//     stbtt_FindMatchingFont() will use *case-sensitive* comparisons on
+//             unicode-encoded names to try to find the font you want;
+//             you can run this before calling stbtt_InitFont()
+//
+//     stbtt_GetFontNameString() lets you get any of the various strings
+//             from the file yourself and do your own comparisons on them.
+//             You have to have called stbtt_InitFont() first.
+
+
+STBTT_DEF int stbtt_FindMatchingFont(const unsigned char *fontdata, const char *name, int flags);
+// returns the offset (not index) of the font that matches, or -1 if none
+//   if you use STBTT_MACSTYLE_DONTCARE, use a font name like "Arial Bold".
+//   if you use any other flag, use a font name like "Arial"; this checks
+//     the 'macStyle' header field; i don't know if fonts set this consistently
+#define STBTT_MACSTYLE_DONTCARE     0
+#define STBTT_MACSTYLE_BOLD         1
+#define STBTT_MACSTYLE_ITALIC       2
+#define STBTT_MACSTYLE_UNDERSCORE   4
+#define STBTT_MACSTYLE_NONE         8   // <= not same as 0, this makes us check the bitfield is 0
+
+STBTT_DEF int stbtt_CompareUTF8toUTF16_bigendian(const char *s1, int len1, const char *s2, int len2);
+// returns 1/0 whether the first string interpreted as utf8 is identical to
+// the second string interpreted as big-endian utf16... useful for strings from next func
+
+STBTT_DEF const char *stbtt_GetFontNameString(const stbtt_fontinfo *font, int *length, int platformID, int encodingID, int languageID, int nameID);
+// returns the string (which may be big-endian double byte, e.g. for unicode)
+// and puts the length in bytes in *length.
+//
+// some of the values for the IDs are below; for more see the truetype spec:
+//     http://developer.apple.com/textfonts/TTRefMan/RM06/Chap6name.html
+//     http://www.microsoft.com/typography/otspec/name.htm
+
+enum { // platformID
+   STBTT_PLATFORM_ID_UNICODE   =0,
+   STBTT_PLATFORM_ID_MAC       =1,
+   STBTT_PLATFORM_ID_ISO       =2,
+   STBTT_PLATFORM_ID_MICROSOFT =3
+};
+
+enum { // encodingID for STBTT_PLATFORM_ID_UNICODE
+   STBTT_UNICODE_EID_UNICODE_1_0    =0,
+   STBTT_UNICODE_EID_UNICODE_1_1    =1,
+   STBTT_UNICODE_EID_ISO_10646      =2,
+   STBTT_UNICODE_EID_UNICODE_2_0_BMP=3,
+   STBTT_UNICODE_EID_UNICODE_2_0_FULL=4
+};
+
+enum { // encodingID for STBTT_PLATFORM_ID_MICROSOFT
+   STBTT_MS_EID_SYMBOL        =0,
+   STBTT_MS_EID_UNICODE_BMP   =1,
+   STBTT_MS_EID_SHIFTJIS      =2,
+   STBTT_MS_EID_UNICODE_FULL  =10
+};
+
+enum { // encodingID for STBTT_PLATFORM_ID_MAC; same as Script Manager codes
+   STBTT_MAC_EID_ROMAN        =0,   STBTT_MAC_EID_ARABIC       =4,
+   STBTT_MAC_EID_JAPANESE     =1,   STBTT_MAC_EID_HEBREW       =5,
+   STBTT_MAC_EID_CHINESE_TRAD =2,   STBTT_MAC_EID_GREEK        =6,
+   STBTT_MAC_EID_KOREAN       =3,   STBTT_MAC_EID_RUSSIAN      =7
+};
+
+enum { // languageID for STBTT_PLATFORM_ID_MICROSOFT; same as LCID...
+       // problematic because there are e.g. 16 english LCIDs and 16 arabic LCIDs
+   STBTT_MS_LANG_ENGLISH     =0x0409,   STBTT_MS_LANG_ITALIAN     =0x0410,
+   STBTT_MS_LANG_CHINESE     =0x0804,   STBTT_MS_LANG_JAPANESE    =0x0411,
+   STBTT_MS_LANG_DUTCH       =0x0413,   STBTT_MS_LANG_KOREAN      =0x0412,
+   STBTT_MS_LANG_FRENCH      =0x040c,   STBTT_MS_LANG_RUSSIAN     =0x0419,
+   STBTT_MS_LANG_GERMAN      =0x0407,   STBTT_MS_LANG_SPANISH     =0x0409,
+   STBTT_MS_LANG_HEBREW      =0x040d,   STBTT_MS_LANG_SWEDISH     =0x041D
+};
+
+enum { // languageID for STBTT_PLATFORM_ID_MAC
+   STBTT_MAC_LANG_ENGLISH      =0 ,   STBTT_MAC_LANG_JAPANESE     =11,
+   STBTT_MAC_LANG_ARABIC       =12,   STBTT_MAC_LANG_KOREAN       =23,
+   STBTT_MAC_LANG_DUTCH        =4 ,   STBTT_MAC_LANG_RUSSIAN      =32,
+   STBTT_MAC_LANG_FRENCH       =1 ,   STBTT_MAC_LANG_SPANISH      =6 ,
+   STBTT_MAC_LANG_GERMAN       =2 ,   STBTT_MAC_LANG_SWEDISH      =5 ,
+   STBTT_MAC_LANG_HEBREW       =10,   STBTT_MAC_LANG_CHINESE_SIMPLIFIED =33,
+   STBTT_MAC_LANG_ITALIAN      =3 ,   STBTT_MAC_LANG_CHINESE_TRAD =19
+};
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif // __STB_INCLUDE_STB_TRUETYPE_H__
+
+///////////////////////////////////////////////////////////////////////////////
+///////////////////////////////////////////////////////////////////////////////
+////
+////   IMPLEMENTATION
+////
+////
+
+#ifdef STB_TRUETYPE_IMPLEMENTATION
+
+#ifndef STBTT_MAX_OVERSAMPLE
+#define STBTT_MAX_OVERSAMPLE   8
+#endif
+
+#if STBTT_MAX_OVERSAMPLE > 255
+#error "STBTT_MAX_OVERSAMPLE cannot be > 255"
+#endif
+
+typedef int stbtt__test_oversample_pow2[(STBTT_MAX_OVERSAMPLE & (STBTT_MAX_OVERSAMPLE-1)) == 0 ? 1 : -1];
+
+#ifndef STBTT_RASTERIZER_VERSION
+#define STBTT_RASTERIZER_VERSION 2
+#endif
+
+#ifdef _MSC_VER
+#define STBTT__NOTUSED(v)  (void)(v)
+#else
+#define STBTT__NOTUSED(v)  (void)sizeof(v)
+#endif
+
+//////////////////////////////////////////////////////////////////////////
+//
+// stbtt__buf helpers to parse data from file
+//
+
+static stbtt_uint8 stbtt__buf_get8(stbtt__buf *b)
+{
+   if (b->cursor >= b->size)
+      return 0;
+   return b->data[b->cursor++];
+}
+
+static stbtt_uint8 stbtt__buf_peek8(stbtt__buf *b)
+{
+   if (b->cursor >= b->size)
+      return 0;
+   return b->data[b->cursor];
+}
+
+static void stbtt__buf_seek(stbtt__buf *b, int o)
+{
+   STBTT_assert(!(o > b->size || o < 0));
+   b->cursor = (o > b->size || o < 0) ? b->size : o;
+}
+
+static void stbtt__buf_skip(stbtt__buf *b, int o)
+{
+   stbtt__buf_seek(b, b->cursor + o);
+}
+
+static stbtt_uint32 stbtt__buf_get(stbtt__buf *b, int n)
+{
+   stbtt_uint32 v = 0;
+   int i;
+   STBTT_assert(n >= 1 && n <= 4);
+   for (i = 0; i < n; i++)
+      v = (v << 8) | stbtt__buf_get8(b);
+   return v;
+}
+
+static stbtt__buf stbtt__new_buf(const void *p, size_t size)
+{
+   stbtt__buf r;
+   STBTT_assert(size < 0x40000000);
+   r.data = (stbtt_uint8*) p;
+   r.size = (int) size;
+   r.cursor = 0;
+   return r;
+}
+
+#define stbtt__buf_get16(b)  stbtt__buf_get((b), 2)
+#define stbtt__buf_get32(b)  stbtt__buf_get((b), 4)
+
+static stbtt__buf stbtt__buf_range(const stbtt__buf *b, int o, int s)
+{
+   stbtt__buf r = stbtt__new_buf(NULL, 0);
+   if (o < 0 || s < 0 || o > b->size || s > b->size - o) return r;
+   r.data = b->data + o;
+   r.size = s;
+   return r;
+}
+
+static stbtt__buf stbtt__cff_get_index(stbtt__buf *b)
+{
+   int count, start, offsize;
+   start = b->cursor;
+   count = stbtt__buf_get16(b);
+   if (count) {
+      offsize = stbtt__buf_get8(b);
+      STBTT_assert(offsize >= 1 && offsize <= 4);
+      stbtt__buf_skip(b, offsize * count);
+      stbtt__buf_skip(b, stbtt__buf_get(b, offsize) - 1);
+   }
+   return stbtt__buf_range(b, start, b->cursor - start);
+}
+
+static stbtt_uint32 stbtt__cff_int(stbtt__buf *b)
+{
+   int b0 = stbtt__buf_get8(b);
+   if (b0 >= 32 && b0 <= 246)       return b0 - 139;
+   else if (b0 >= 247 && b0 <= 250) return (b0 - 247)*256 + stbtt__buf_get8(b) + 108;
+   else if (b0 >= 251 && b0 <= 254) return -(b0 - 251)*256 - stbtt__buf_get8(b) - 108;
+   else if (b0 == 28)               return stbtt__buf_get16(b);
+   else if (b0 == 29)               return stbtt__buf_get32(b);
+   STBTT_assert(0);
+   return 0;
+}
+
+static void stbtt__cff_skip_operand(stbtt__buf *b) {
+   int v, b0 = stbtt__buf_peek8(b);
+   STBTT_assert(b0 >= 28);
+   if (b0 == 30) {
+      stbtt__buf_skip(b, 1);
+      while (b->cursor < b->size) {
+         v = stbtt__buf_get8(b);
+         if ((v & 0xF) == 0xF || (v >> 4) == 0xF)
+            break;
+      }
+   } else {
+      stbtt__cff_int(b);
+   }
+}
+
+static stbtt__buf stbtt__dict_get(stbtt__buf *b, int key)
+{
+   stbtt__buf_seek(b, 0);
+   while (b->cursor < b->size) {
+      int start = b->cursor, end, op;
+      while (stbtt__buf_peek8(b) >= 28)
+         stbtt__cff_skip_operand(b);
+      end = b->cursor;
+      op = stbtt__buf_get8(b);
+      if (op == 12)  op = stbtt__buf_get8(b) | 0x100;
+      if (op == key) return stbtt__buf_range(b, start, end-start);
+   }
+   return stbtt__buf_range(b, 0, 0);
+}
+
+static void stbtt__dict_get_ints(stbtt__buf *b, int key, int outcount, stbtt_uint32 *out)
+{
+   int i;
+   stbtt__buf operands = stbtt__dict_get(b, key);
+   for (i = 0; i < outcount && operands.cursor < operands.size; i++)
+      out[i] = stbtt__cff_int(&operands);
+}
+
+static int stbtt__cff_index_count(stbtt__buf *b)
+{
+   stbtt__buf_seek(b, 0);
+   return stbtt__buf_get16(b);
+}
+
+static stbtt__buf stbtt__cff_index_get(stbtt__buf b, int i)
+{
+   int count, offsize, start, end;
+   stbtt__buf_seek(&b, 0);
+   count = stbtt__buf_get16(&b);
+   offsize = stbtt__buf_get8(&b);
+   STBTT_assert(i >= 0 && i < count);
+   STBTT_assert(offsize >= 1 && offsize <= 4);
+   stbtt__buf_skip(&b, i*offsize);
+   start = stbtt__buf_get(&b, offsize);
+   end = stbtt__buf_get(&b, offsize);
+   return stbtt__buf_range(&b, 2+(count+1)*offsize+start, end - start);
+}
+
+//////////////////////////////////////////////////////////////////////////
+//
+// accessors to parse data from file
+//
+
+// on platforms that don't allow misaligned reads, if we want to allow
+// truetype fonts that aren't padded to alignment, define ALLOW_UNALIGNED_TRUETYPE
+
+#define ttBYTE(p)     (* (stbtt_uint8 *) (p))
+#define ttCHAR(p)     (* (stbtt_int8 *) (p))
+#define ttFixed(p)    ttLONG(p)
+
+static stbtt_uint16 ttUSHORT(stbtt_uint8 *p) { return p[0]*256 + p[1]; }
+static stbtt_int16 ttSHORT(stbtt_uint8 *p)   { return p[0]*256 + p[1]; }
+static stbtt_uint32 ttULONG(stbtt_uint8 *p)  { return (p[0]<<24) + (p[1]<<16) + (p[2]<<8) + p[3]; }
+static stbtt_int32 ttLONG(stbtt_uint8 *p)    { return (p[0]<<24) + (p[1]<<16) + (p[2]<<8) + p[3]; }
+
+#define stbtt_tag4(p,c0,c1,c2,c3) ((p)[0] == (c0) && (p)[1] == (c1) && (p)[2] == (c2) && (p)[3] == (c3))
+#define stbtt_tag(p,str)           stbtt_tag4(p,str[0],str[1],str[2],str[3])
+
+static int stbtt__isfont(stbtt_uint8 *font)
+{
+   // check the version number
+   if (stbtt_tag4(font, '1',0,0,0))  return 1; // TrueType 1
+   if (stbtt_tag(font, "typ1"))   return 1; // TrueType with type 1 font -- we don't support this!
+   if (stbtt_tag(font, "OTTO"))   return 1; // OpenType with CFF
+   if (stbtt_tag4(font, 0,1,0,0)) return 1; // OpenType 1.0
+   if (stbtt_tag(font, "true"))   return 1; // Apple specification for TrueType fonts
+   return 0;
+}
+
+// @OPTIMIZE: binary search
+static stbtt_uint32 stbtt__find_table(stbtt_uint8 *data, stbtt_uint32 fontstart, const char *tag)
+{
+   stbtt_int32 num_tables = ttUSHORT(data+fontstart+4);
+   stbtt_uint32 tabledir = fontstart + 12;
+   stbtt_int32 i;
+   for (i=0; i < num_tables; ++i) {
+      stbtt_uint32 loc = tabledir + 16*i;
+      if (stbtt_tag(data+loc+0, tag))
+         return ttULONG(data+loc+8);
+   }
+   return 0;
+}
+
+static int stbtt_GetFontOffsetForIndex_internal(unsigned char *font_collection, int index)
+{
+   // if it's just a font, there's only one valid index
+   if (stbtt__isfont(font_collection))
+      return index == 0 ? 0 : -1;
+
+   // check if it's a TTC
+   if (stbtt_tag(font_collection, "ttcf")) {
+      // version 1?
+      if (ttULONG(font_collection+4) == 0x00010000 || ttULONG(font_collection+4) == 0x00020000) {
+         stbtt_int32 n = ttLONG(font_collection+8);
+         if (index >= n)
+            return -1;
+         return ttULONG(font_collection+12+index*4);
+      }
+   }
+   return -1;
+}
+
+static int stbtt_GetNumberOfFonts_internal(unsigned char *font_collection)
+{
+   // if it's just a font, there's only one valid font
+   if (stbtt__isfont(font_collection))
+      return 1;
+
+   // check if it's a TTC
+   if (stbtt_tag(font_collection, "ttcf")) {
+      // version 1?
+      if (ttULONG(font_collection+4) == 0x00010000 || ttULONG(font_collection+4) == 0x00020000) {
+         return ttLONG(font_collection+8);
+      }
+   }
+   return 0;
+}
+
+static stbtt__buf stbtt__get_subrs(stbtt__buf cff, stbtt__buf fontdict)
+{
+   stbtt_uint32 subrsoff = 0, private_loc[2] = { 0, 0 };
+   stbtt__buf pdict;
+   stbtt__dict_get_ints(&fontdict, 18, 2, private_loc);
+   if (!private_loc[1] || !private_loc[0]) return stbtt__new_buf(NULL, 0);
+   pdict = stbtt__buf_range(&cff, private_loc[1], private_loc[0]);
+   stbtt__dict_get_ints(&pdict, 19, 1, &subrsoff);
+   if (!subrsoff) return stbtt__new_buf(NULL, 0);
+   stbtt__buf_seek(&cff, private_loc[1]+subrsoff);
+   return stbtt__cff_get_index(&cff);
+}
+
+// since most people won't use this, find this table the first time it's needed
+static int stbtt__get_svg(stbtt_fontinfo *info)
+{
+   stbtt_uint32 t;
+   if (info->svg < 0) {
+      t = stbtt__find_table(info->data, info->fontstart, "SVG ");
+      if (t) {
+         stbtt_uint32 offset = ttULONG(info->data + t + 2);
+         info->svg = t + offset;
+      } else {
+         info->svg = 0;
+      }
+   }
+   return info->svg;
+}
+
+static int stbtt_InitFont_internal(stbtt_fontinfo *info, unsigned char *data, int fontstart)
+{
+   stbtt_uint32 cmap, t;
+   stbtt_int32 i,numTables;
+
+   info->data = data;
+   info->fontstart = fontstart;
+   info->cff = stbtt__new_buf(NULL, 0);
+
+   cmap = stbtt__find_table(data, fontstart, "cmap");       // required
+   info->loca = stbtt__find_table(data, fontstart, "loca"); // required
+   info->head = stbtt__find_table(data, fontstart, "head"); // required
+   info->glyf = stbtt__find_table(data, fontstart, "glyf"); // required
+   info->hhea = stbtt__find_table(data, fontstart, "hhea"); // required
+   info->hmtx = stbtt__find_table(data, fontstart, "hmtx"); // required
+   info->kern = stbtt__find_table(data, fontstart, "kern"); // not required
+   info->gpos = stbtt__find_table(data, fontstart, "GPOS"); // not required
+
+   if (!cmap || !info->head || !info->hhea || !info->hmtx)
+      return 0;
+   if (info->glyf) {
+      // required for truetype
+      if (!info->loca) return 0;
+   } else {
+      // initialization for CFF / Type2 fonts (OTF)
+      stbtt__buf b, topdict, topdictidx;
+      stbtt_uint32 cstype = 2, charstrings = 0, fdarrayoff = 0, fdselectoff = 0;
+      stbtt_uint32 cff;
+
+      cff = stbtt__find_table(data, fontstart, "CFF ");
+      if (!cff) return 0;
+
+      info->fontdicts = stbtt__new_buf(NULL, 0);
+      info->fdselect = stbtt__new_buf(NULL, 0);
+
+      // @TODO this should use size from table (not 512MB)
+      info->cff = stbtt__new_buf(data+cff, 512*1024*1024);
+      b = info->cff;
+
+      // read the header
+      stbtt__buf_skip(&b, 2);
+      stbtt__buf_seek(&b, stbtt__buf_get8(&b)); // hdrsize
+
+      // @TODO the name INDEX could list multiple fonts,
+      // but we just use the first one.
+      stbtt__cff_get_index(&b);  // name INDEX
+      topdictidx = stbtt__cff_get_index(&b);
+      topdict = stbtt__cff_index_get(topdictidx, 0);
+      stbtt__cff_get_index(&b);  // string INDEX
+      info->gsubrs = stbtt__cff_get_index(&b);
+
+      stbtt__dict_get_ints(&topdict, 17, 1, &charstrings);
+      stbtt__dict_get_ints(&topdict, 0x100 | 6, 1, &cstype);
+      stbtt__dict_get_ints(&topdict, 0x100 | 36, 1, &fdarrayoff);
+      stbtt__dict_get_ints(&topdict, 0x100 | 37, 1, &fdselectoff);
+      info->subrs = stbtt__get_subrs(b, topdict);
+
+      // we only support Type 2 charstrings
+      if (cstype != 2) return 0;
+      if (charstrings == 0) return 0;
+
+      if (fdarrayoff) {
+         // looks like a CID font
+         if (!fdselectoff) return 0;
+         stbtt__buf_seek(&b, fdarrayoff);
+         info->fontdicts = stbtt__cff_get_index(&b);
+         info->fdselect = stbtt__buf_range(&b, fdselectoff, b.size-fdselectoff);
+      }
+
+      stbtt__buf_seek(&b, charstrings);
+      info->charstrings = stbtt__cff_get_index(&b);
+   }
+
+   t = stbtt__find_table(data, fontstart, "maxp");
+   if (t)
+      info->numGlyphs = ttUSHORT(data+t+4);
+   else
+      info->numGlyphs = 0xffff;
+
+   info->svg = -1;
+
+   // find a cmap encoding table we understand *now* to avoid searching
+   // later. (todo: could make this installable)
+   // the same regardless of glyph.
+   numTables = ttUSHORT(data + cmap + 2);
+   info->index_map = 0;
+   for (i=0; i < numTables; ++i) {
+      stbtt_uint32 encoding_record = cmap + 4 + 8 * i;
+      // find an encoding we understand:
+      switch(ttUSHORT(data+encoding_record)) {
+         case STBTT_PLATFORM_ID_MICROSOFT:
+            switch (ttUSHORT(data+encoding_record+2)) {
+               case STBTT_MS_EID_UNICODE_BMP:
+               case STBTT_MS_EID_UNICODE_FULL:
+                  // MS/Unicode
+                  info->index_map = cmap + ttULONG(data+encoding_record+4);
+                  break;
+            }
+            break;
+        case STBTT_PLATFORM_ID_UNICODE:
+            // Mac/iOS has these
+            // all the encodingIDs are unicode, so we don't bother to check it
+            info->index_map = cmap + ttULONG(data+encoding_record+4);
+            break;
+      }
+   }
+   if (info->index_map == 0)
+      return 0;
+
+   info->indexToLocFormat = ttUSHORT(data+info->head + 50);
+   return 1;
+}
+
+STBTT_DEF int stbtt_FindGlyphIndex(const stbtt_fontinfo *info, int unicode_codepoint)
+{
+   stbtt_uint8 *data = info->data;
+   stbtt_uint32 index_map = info->index_map;
+
+   stbtt_uint16 format = ttUSHORT(data + index_map + 0);
+   if (format == 0) { // apple byte encoding
+      stbtt_int32 bytes = ttUSHORT(data + index_map + 2);
+      if (unicode_codepoint < bytes-6)
+         return ttBYTE(data + index_map + 6 + unicode_codepoint);
+      return 0;
+   } else if (format == 6) {
+      stbtt_uint32 first = ttUSHORT(data + index_map + 6);
+      stbtt_uint32 count = ttUSHORT(data + index_map + 8);
+      if ((stbtt_uint32) unicode_codepoint >= first && (stbtt_uint32) unicode_codepoint < first+count)
+         return ttUSHORT(data + index_map + 10 + (unicode_codepoint - first)*2);
+      return 0;
+   } else if (format == 2) {
+      STBTT_assert(0); // @TODO: high-byte mapping for japanese/chinese/korean
+      return 0;
+   } else if (format == 4) { // standard mapping for windows fonts: binary search collection of ranges
+      stbtt_uint16 segcount = ttUSHORT(data+index_map+6) >> 1;
+      stbtt_uint16 searchRange = ttUSHORT(data+index_map+8) >> 1;
+      stbtt_uint16 entrySelector = ttUSHORT(data+index_map+10);
+      stbtt_uint16 rangeShift = ttUSHORT(data+index_map+12) >> 1;
+
+      // do a binary search of the segments
+      stbtt_uint32 endCount = index_map + 14;
+      stbtt_uint32 search = endCount;
+
+      if (unicode_codepoint > 0xffff)
+         return 0;
+
+      // they lie from endCount .. endCount + segCount
+      // but searchRange is the nearest power of two, so...
+      if (unicode_codepoint >= ttUSHORT(data + search + rangeShift*2))
+         search += rangeShift*2;
+
+      // now decrement to bias correctly to find smallest
+      search -= 2;
+      while (entrySelector) {
+         stbtt_uint16 end;
+         searchRange >>= 1;
+         end = ttUSHORT(data + search + searchRange*2);
+         if (unicode_codepoint > end)
+            search += searchRange*2;
+         --entrySelector;
+      }
+      search += 2;
+
+      {
+         stbtt_uint16 offset, start, last;
+         stbtt_uint16 item = (stbtt_uint16) ((search - endCount) >> 1);
+
+         start = ttUSHORT(data + index_map + 14 + segcount*2 + 2 + 2*item);
+         last = ttUSHORT(data + endCount + 2*item);
+         if (unicode_codepoint < start || unicode_codepoint > last)
+            return 0;
+
+         offset = ttUSHORT(data + index_map + 14 + segcount*6 + 2 + 2*item);
+         if (offset == 0)
+            return (stbtt_uint16) (unicode_codepoint + ttSHORT(data + index_map + 14 + segcount*4 + 2 + 2*item));
+
+         return ttUSHORT(data + offset + (unicode_codepoint-start)*2 + index_map + 14 + segcount*6 + 2 + 2*item);
+      }
+   } else if (format == 12 || format == 13) {
+      stbtt_uint32 ngroups = ttULONG(data+index_map+12);
+      stbtt_int32 low,high;
+      low = 0; high = (stbtt_int32)ngroups;
+      // Binary search the right group.
+      while (low < high) {
+         stbtt_int32 mid = low + ((high-low) >> 1); // rounds down, so low <= mid < high
+         stbtt_uint32 start_char = ttULONG(data+index_map+16+mid*12);
+         stbtt_uint32 end_char = ttULONG(data+index_map+16+mid*12+4);
+         if ((stbtt_uint32) unicode_codepoint < start_char)
+            high = mid;
+         else if ((stbtt_uint32) unicode_codepoint > end_char)
+            low = mid+1;
+         else {
+            stbtt_uint32 start_glyph = ttULONG(data+index_map+16+mid*12+8);
+            if (format == 12)
+               return start_glyph + unicode_codepoint-start_char;
+            else // format == 13
+               return start_glyph;
+         }
+      }
+      return 0; // not found
+   }
+   // @TODO
+   STBTT_assert(0);
+   return 0;
+}
+
+STBTT_DEF int stbtt_GetCodepointShape(const stbtt_fontinfo *info, int unicode_codepoint, stbtt_vertex **vertices)
+{
+   return stbtt_GetGlyphShape(info, stbtt_FindGlyphIndex(info, unicode_codepoint), vertices);
+}
+
+static void stbtt_setvertex(stbtt_vertex *v, stbtt_uint8 type, stbtt_int32 x, stbtt_int32 y, stbtt_int32 cx, stbtt_int32 cy)
+{
+   v->type = type;
+   v->x = (stbtt_int16) x;
+   v->y = (stbtt_int16) y;
+   v->cx = (stbtt_int16) cx;
+   v->cy = (stbtt_int16) cy;
+}
+
+static int stbtt__GetGlyfOffset(const stbtt_fontinfo *info, int glyph_index)
+{
+   int g1,g2;
+
+   STBTT_assert(!info->cff.size);
+
+   if (glyph_index >= info->numGlyphs) return -1; // glyph index out of range
+   if (info->indexToLocFormat >= 2)    return -1; // unknown index->glyph map format
+
+   if (info->indexToLocFormat == 0) {
+      g1 = info->glyf + ttUSHORT(info->data + info->loca + glyph_index * 2) * 2;
+      g2 = info->glyf + ttUSHORT(info->data + info->loca + glyph_index * 2 + 2) * 2;
+   } else {
+      g1 = info->glyf + ttULONG (info->data + info->loca + glyph_index * 4);
+      g2 = info->glyf + ttULONG (info->data + info->loca + glyph_index * 4 + 4);
+   }
+
+   return g1==g2 ? -1 : g1; // if length is 0, return -1
+}
+
+static int stbtt__GetGlyphInfoT2(const stbtt_fontinfo *info, int glyph_index, int *x0, int *y0, int *x1, int *y1);
+
+STBTT_DEF int stbtt_GetGlyphBox(const stbtt_fontinfo *info, int glyph_index, int *x0, int *y0, int *x1, int *y1)
+{
+   if (info->cff.size) {
+      stbtt__GetGlyphInfoT2(info, glyph_index, x0, y0, x1, y1);
+   } else {
+      int g = stbtt__GetGlyfOffset(info, glyph_index);
+      if (g < 0) return 0;
+
+      if (x0) *x0 = ttSHORT(info->data + g + 2);
+      if (y0) *y0 = ttSHORT(info->data + g + 4);
+      if (x1) *x1 = ttSHORT(info->data + g + 6);
+      if (y1) *y1 = ttSHORT(info->data + g + 8);
+   }
+   return 1;
+}
+
+STBTT_DEF int stbtt_GetCodepointBox(const stbtt_fontinfo *info, int codepoint, int *x0, int *y0, int *x1, int *y1)
+{
+   return stbtt_GetGlyphBox(info, stbtt_FindGlyphIndex(info,codepoint), x0,y0,x1,y1);
+}
+
+STBTT_DEF int stbtt_IsGlyphEmpty(const stbtt_fontinfo *info, int glyph_index)
+{
+   stbtt_int16 numberOfContours;
+   int g;
+   if (info->cff.size)
+      return stbtt__GetGlyphInfoT2(info, glyph_index, NULL, NULL, NULL, NULL) == 0;
+   g = stbtt__GetGlyfOffset(info, glyph_index);
+   if (g < 0) return 1;
+   numberOfContours = ttSHORT(info->data + g);
+   return numberOfContours == 0;
+}
+
+static int stbtt__close_shape(stbtt_vertex *vertices, int num_vertices, int was_off, int start_off,
+    stbtt_int32 sx, stbtt_int32 sy, stbtt_int32 scx, stbtt_int32 scy, stbtt_int32 cx, stbtt_int32 cy)
+{
+   if (start_off) {
+      if (was_off)
+         stbtt_setvertex(&vertices[num_vertices++], STBTT_vcurve, (cx+scx)>>1, (cy+scy)>>1, cx,cy);
+      stbtt_setvertex(&vertices[num_vertices++], STBTT_vcurve, sx,sy,scx,scy);
+   } else {
+      if (was_off)
+         stbtt_setvertex(&vertices[num_vertices++], STBTT_vcurve,sx,sy,cx,cy);
+      else
+         stbtt_setvertex(&vertices[num_vertices++], STBTT_vline,sx,sy,0,0);
+   }
+   return num_vertices;
+}
+
+static int stbtt__GetGlyphShapeTT(const stbtt_fontinfo *info, int glyph_index, stbtt_vertex **pvertices)
+{
+   stbtt_int16 numberOfContours;
+   stbtt_uint8 *endPtsOfContours;
+   stbtt_uint8 *data = info->data;
+   stbtt_vertex *vertices=0;
+   int num_vertices=0;
+   int g = stbtt__GetGlyfOffset(info, glyph_index);
+
+   *pvertices = NULL;
+
+   if (g < 0) return 0;
+
+   numberOfContours = ttSHORT(data + g);
+
+   if (numberOfContours > 0) {
+      stbtt_uint8 flags=0,flagcount;
+      stbtt_int32 ins, i,j=0,m,n, next_move, was_off=0, off, start_off=0;
+      stbtt_int32 x,y,cx,cy,sx,sy, scx,scy;
+      stbtt_uint8 *points;
+      endPtsOfContours = (data + g + 10);
+      ins = ttUSHORT(data + g + 10 + numberOfContours * 2);
+      points = data + g + 10 + numberOfContours * 2 + 2 + ins;
+
+      n = 1+ttUSHORT(endPtsOfContours + numberOfContours*2-2);
+
+      m = n + 2*numberOfContours;  // a loose bound on how many vertices we might need
+      vertices = (stbtt_vertex *) STBTT_malloc(m * sizeof(vertices[0]), info->userdata);
+      if (vertices == 0)
+         return 0;
+
+      next_move = 0;
+      flagcount=0;
+
+      // in first pass, we load uninterpreted data into the allocated array
+      // above, shifted to the end of the array so we won't overwrite it when
+      // we create our final data starting from the front
+
+      off = m - n; // starting offset for uninterpreted data, regardless of how m ends up being calculated
+
+      // first load flags
+
+      for (i=0; i < n; ++i) {
+         if (flagcount == 0) {
+            flags = *points++;
+            if (flags & 8)
+               flagcount = *points++;
+         } else
+            --flagcount;
+         vertices[off+i].type = flags;
+      }
+
+      // now load x coordinates
+      x=0;
+      for (i=0; i < n; ++i) {
+         flags = vertices[off+i].type;
+         if (flags & 2) {
+            stbtt_int16 dx = *points++;
+            x += (flags & 16) ? dx : -dx; // ???
+         } else {
+            if (!(flags & 16)) {
+               x = x + (stbtt_int16) (points[0]*256 + points[1]);
+               points += 2;
+            }
+         }
+         vertices[off+i].x = (stbtt_int16) x;
+      }
+
+      // now load y coordinates
+      y=0;
+      for (i=0; i < n; ++i) {
+         flags = vertices[off+i].type;
+         if (flags & 4) {
+            stbtt_int16 dy = *points++;
+            y += (flags & 32) ? dy : -dy; // ???
+         } else {
+            if (!(flags & 32)) {
+               y = y + (stbtt_int16) (points[0]*256 + points[1]);
+               points += 2;
+            }
+         }
+         vertices[off+i].y = (stbtt_int16) y;
+      }
+
+      // now convert them to our format
+      num_vertices=0;
+      sx = sy = cx = cy = scx = scy = 0;
+      for (i=0; i < n; ++i) {
+         flags = vertices[off+i].type;
+         x     = (stbtt_int16) vertices[off+i].x;
+         y     = (stbtt_int16) vertices[off+i].y;
+
+         if (next_move == i) {
+            if (i != 0)
+               num_vertices = stbtt__close_shape(vertices, num_vertices, was_off, start_off, sx,sy,scx,scy,cx,cy);
+
+            // now start the new one
+            start_off = !(flags & 1);
+            if (start_off) {
+               // if we start off with an off-curve point, then when we need to find a point on the curve
+               // where we can start, and we need to save some state for when we wraparound.
+               scx = x;
+               scy = y;
+               if (!(vertices[off+i+1].type & 1)) {
+                  // next point is also a curve point, so interpolate an on-point curve
+                  sx = (x + (stbtt_int32) vertices[off+i+1].x) >> 1;
+                  sy = (y + (stbtt_int32) vertices[off+i+1].y) >> 1;
+               } else {
+                  // otherwise just use the next point as our start point
+                  sx = (stbtt_int32) vertices[off+i+1].x;
+                  sy = (stbtt_int32) vertices[off+i+1].y;
+                  ++i; // we're using point i+1 as the starting point, so skip it
+               }
+            } else {
+               sx = x;
+               sy = y;
+            }
+            stbtt_setvertex(&vertices[num_vertices++], STBTT_vmove,sx,sy,0,0);
+            was_off = 0;
+            next_move = 1 + ttUSHORT(endPtsOfContours+j*2);
+            ++j;
+         } else {
+            if (!(flags & 1)) { // if it's a curve
+               if (was_off) // two off-curve control points in a row means interpolate an on-curve midpoint
+                  stbtt_setvertex(&vertices[num_vertices++], STBTT_vcurve, (cx+x)>>1, (cy+y)>>1, cx, cy);
+               cx = x;
+               cy = y;
+               was_off = 1;
+            } else {
+               if (was_off)
+                  stbtt_setvertex(&vertices[num_vertices++], STBTT_vcurve, x,y, cx, cy);
+               else
+                  stbtt_setvertex(&vertices[num_vertices++], STBTT_vline, x,y,0,0);
+               was_off = 0;
+            }
+         }
+      }
+      num_vertices = stbtt__close_shape(vertices, num_vertices, was_off, start_off, sx,sy,scx,scy,cx,cy);
+   } else if (numberOfContours < 0) {
+      // Compound shapes.
+      int more = 1;
+      stbtt_uint8 *comp = data + g + 10;
+      num_vertices = 0;
+      vertices = 0;
+      while (more) {
+         stbtt_uint16 flags, gidx;
+         int comp_num_verts = 0, i;
+         stbtt_vertex *comp_verts = 0, *tmp = 0;
+         float mtx[6] = {1,0,0,1,0,0}, m, n;
+
+         flags = ttSHORT(comp); comp+=2;
+         gidx = ttSHORT(comp); comp+=2;
+
+         if (flags & 2) { // XY values
+            if (flags & 1) { // shorts
+               mtx[4] = ttSHORT(comp); comp+=2;
+               mtx[5] = ttSHORT(comp); comp+=2;
+            } else {
+               mtx[4] = ttCHAR(comp); comp+=1;
+               mtx[5] = ttCHAR(comp); comp+=1;
+            }
+         }
+         else {
+            // @TODO handle matching point
+            STBTT_assert(0);
+         }
+         if (flags & (1<<3)) { // WE_HAVE_A_SCALE
+            mtx[0] = mtx[3] = ttSHORT(comp)/16384.0f; comp+=2;
+            mtx[1] = mtx[2] = 0;
+         } else if (flags & (1<<6)) { // WE_HAVE_AN_X_AND_YSCALE
+            mtx[0] = ttSHORT(comp)/16384.0f; comp+=2;
+            mtx[1] = mtx[2] = 0;
+            mtx[3] = ttSHORT(comp)/16384.0f; comp+=2;
+         } else if (flags & (1<<7)) { // WE_HAVE_A_TWO_BY_TWO
+            mtx[0] = ttSHORT(comp)/16384.0f; comp+=2;
+            mtx[1] = ttSHORT(comp)/16384.0f; comp+=2;
+            mtx[2] = ttSHORT(comp)/16384.0f; comp+=2;
+            mtx[3] = ttSHORT(comp)/16384.0f; comp+=2;
+         }
+
+         // Find transformation scales.
+         m = (float) STBTT_sqrt(mtx[0]*mtx[0] + mtx[1]*mtx[1]);
+         n = (float) STBTT_sqrt(mtx[2]*mtx[2] + mtx[3]*mtx[3]);
+
+         // Get indexed glyph.
+         comp_num_verts = stbtt_GetGlyphShape(info, gidx, &comp_verts);
+         if (comp_num_verts > 0) {
+            // Transform vertices.
+            for (i = 0; i < comp_num_verts; ++i) {
+               stbtt_vertex* v = &comp_verts[i];
+               stbtt_vertex_type x,y;
+               x=v->x; y=v->y;
+               v->x = (stbtt_vertex_type)(m * (mtx[0]*x + mtx[2]*y + mtx[4]));
+               v->y = (stbtt_vertex_type)(n * (mtx[1]*x + mtx[3]*y + mtx[5]));
+               x=v->cx; y=v->cy;
+               v->cx = (stbtt_vertex_type)(m * (mtx[0]*x + mtx[2]*y + mtx[4]));
+               v->cy = (stbtt_vertex_type)(n * (mtx[1]*x + mtx[3]*y + mtx[5]));
+            }
+            // Append vertices.
+            tmp = (stbtt_vertex*)STBTT_malloc((num_vertices+comp_num_verts)*sizeof(stbtt_vertex), info->userdata);
+            if (!tmp) {
+               if (vertices) STBTT_free(vertices, info->userdata);
+               if (comp_verts) STBTT_free(comp_verts, info->userdata);
+               return 0;
+            }
+            if (num_vertices > 0 && vertices) STBTT_memcpy(tmp, vertices, num_vertices*sizeof(stbtt_vertex));
+            STBTT_memcpy(tmp+num_vertices, comp_verts, comp_num_verts*sizeof(stbtt_vertex));
+            if (vertices) STBTT_free(vertices, info->userdata);
+            vertices = tmp;
+            STBTT_free(comp_verts, info->userdata);
+            num_vertices += comp_num_verts;
+         }
+         // More components ?
+         more = flags & (1<<5);
+      }
+   } else {
+      // numberOfCounters == 0, do nothing
+   }
+
+   *pvertices = vertices;
+   return num_vertices;
+}
+
+typedef struct
+{
+   int bounds;
+   int started;
+   float first_x, first_y;
+   float x, y;
+   stbtt_int32 min_x, max_x, min_y, max_y;
+
+   stbtt_vertex *pvertices;
+   int num_vertices;
+} stbtt__csctx;
+
+#define STBTT__CSCTX_INIT(bounds) {bounds,0, 0,0, 0,0, 0,0,0,0, NULL, 0}
+
+static void stbtt__track_vertex(stbtt__csctx *c, stbtt_int32 x, stbtt_int32 y)
+{
+   if (x > c->max_x || !c->started) c->max_x = x;
+   if (y > c->max_y || !c->started) c->max_y = y;
+   if (x < c->min_x || !c->started) c->min_x = x;
+   if (y < c->min_y || !c->started) c->min_y = y;
+   c->started = 1;
+}
+
+static void stbtt__csctx_v(stbtt__csctx *c, stbtt_uint8 type, stbtt_int32 x, stbtt_int32 y, stbtt_int32 cx, stbtt_int32 cy, stbtt_int32 cx1, stbtt_int32 cy1)
+{
+   if (c->bounds) {
+      stbtt__track_vertex(c, x, y);
+      if (type == STBTT_vcubic) {
+         stbtt__track_vertex(c, cx, cy);
+         stbtt__track_vertex(c, cx1, cy1);
+      }
+   } else {
+      stbtt_setvertex(&c->pvertices[c->num_vertices], type, x, y, cx, cy);
+      c->pvertices[c->num_vertices].cx1 = (stbtt_int16) cx1;
+      c->pvertices[c->num_vertices].cy1 = (stbtt_int16) cy1;
+   }
+   c->num_vertices++;
+}
+
+static void stbtt__csctx_close_shape(stbtt__csctx *ctx)
+{
+   if (ctx->first_x != ctx->x || ctx->first_y != ctx->y)
+      stbtt__csctx_v(ctx, STBTT_vline, (int)ctx->first_x, (int)ctx->first_y, 0, 0, 0, 0);
+}
+
+static void stbtt__csctx_rmove_to(stbtt__csctx *ctx, float dx, float dy)
+{
+   stbtt__csctx_close_shape(ctx);
+   ctx->first_x = ctx->x = ctx->x + dx;
+   ctx->first_y = ctx->y = ctx->y + dy;
+   stbtt__csctx_v(ctx, STBTT_vmove, (int)ctx->x, (int)ctx->y, 0, 0, 0, 0);
+}
+
+static void stbtt__csctx_rline_to(stbtt__csctx *ctx, float dx, float dy)
+{
+   ctx->x += dx;
+   ctx->y += dy;
+   stbtt__csctx_v(ctx, STBTT_vline, (int)ctx->x, (int)ctx->y, 0, 0, 0, 0);
+}
+
+static void stbtt__csctx_rccurve_to(stbtt__csctx *ctx, float dx1, float dy1, float dx2, float dy2, float dx3, float dy3)
+{
+   float cx1 = ctx->x + dx1;
+   float cy1 = ctx->y + dy1;
+   float cx2 = cx1 + dx2;
+   float cy2 = cy1 + dy2;
+   ctx->x = cx2 + dx3;
+   ctx->y = cy2 + dy3;
+   stbtt__csctx_v(ctx, STBTT_vcubic, (int)ctx->x, (int)ctx->y, (int)cx1, (int)cy1, (int)cx2, (int)cy2);
+}
+
+static stbtt__buf stbtt__get_subr(stbtt__buf idx, int n)
+{
+   int count = stbtt__cff_index_count(&idx);
+   int bias = 107;
+   if (count >= 33900)
+      bias = 32768;
+   else if (count >= 1240)
+      bias = 1131;
+   n += bias;
+   if (n < 0 || n >= count)
+      return stbtt__new_buf(NULL, 0);
+   return stbtt__cff_index_get(idx, n);
+}
+
+static stbtt__buf stbtt__cid_get_glyph_subrs(const stbtt_fontinfo *info, int glyph_index)
+{
+   stbtt__buf fdselect = info->fdselect;
+   int nranges, start, end, v, fmt, fdselector = -1, i;
+
+   stbtt__buf_seek(&fdselect, 0);
+   fmt = stbtt__buf_get8(&fdselect);
+   if (fmt == 0) {
+      // untested
+      stbtt__buf_skip(&fdselect, glyph_index);
+      fdselector = stbtt__buf_get8(&fdselect);
+   } else if (fmt == 3) {
+      nranges = stbtt__buf_get16(&fdselect);
+      start = stbtt__buf_get16(&fdselect);
+      for (i = 0; i < nranges; i++) {
+         v = stbtt__buf_get8(&fdselect);
+         end = stbtt__buf_get16(&fdselect);
+         if (glyph_index >= start && glyph_index < end) {
+            fdselector = v;
+            break;
+         }
+         start = end;
+      }
+   }
+   if (fdselector == -1) stbtt__new_buf(NULL, 0);
+   return stbtt__get_subrs(info->cff, stbtt__cff_index_get(info->fontdicts, fdselector));
+}
+
+static int stbtt__run_charstring(const stbtt_fontinfo *info, int glyph_index, stbtt__csctx *c)
+{
+   int in_header = 1, maskbits = 0, subr_stack_height = 0, sp = 0, v, i, b0;
+   int has_subrs = 0, clear_stack;
+   float s[48];
+   stbtt__buf subr_stack[10], subrs = info->subrs, b;
+   float f;
+
+#define STBTT__CSERR(s) (0)
+
+   // this currently ignores the initial width value, which isn't needed if we have hmtx
+   b = stbtt__cff_index_get(info->charstrings, glyph_index);
+   while (b.cursor < b.size) {
+      i = 0;
+      clear_stack = 1;
+      b0 = stbtt__buf_get8(&b);
+      switch (b0) {
+      // @TODO implement hinting
+      case 0x13: // hintmask
+      case 0x14: // cntrmask
+         if (in_header)
+            maskbits += (sp / 2); // implicit "vstem"
+         in_header = 0;
+         stbtt__buf_skip(&b, (maskbits + 7) / 8);
+         break;
+
+      case 0x01: // hstem
+      case 0x03: // vstem
+      case 0x12: // hstemhm
+      case 0x17: // vstemhm
+         maskbits += (sp / 2);
+         break;
+
+      case 0x15: // rmoveto
+         in_header = 0;
+         if (sp < 2) return STBTT__CSERR("rmoveto stack");
+         stbtt__csctx_rmove_to(c, s[sp-2], s[sp-1]);
+         break;
+      case 0x04: // vmoveto
+         in_header = 0;
+         if (sp < 1) return STBTT__CSERR("vmoveto stack");
+         stbtt__csctx_rmove_to(c, 0, s[sp-1]);
+         break;
+      case 0x16: // hmoveto
+         in_header = 0;
+         if (sp < 1) return STBTT__CSERR("hmoveto stack");
+         stbtt__csctx_rmove_to(c, s[sp-1], 0);
+         break;
+
+      case 0x05: // rlineto
+         if (sp < 2) return STBTT__CSERR("rlineto stack");
+         for (; i + 1 < sp; i += 2)
+            stbtt__csctx_rline_to(c, s[i], s[i+1]);
+         break;
+
+      // hlineto/vlineto and vhcurveto/hvcurveto alternate horizontal and vertical
+      // starting from a different place.
+
+      case 0x07: // vlineto
+         if (sp < 1) return STBTT__CSERR("vlineto stack");
+         goto vlineto;
+      case 0x06: // hlineto
+         if (sp < 1) return STBTT__CSERR("hlineto stack");
+         for (;;) {
+            if (i >= sp) break;
+            stbtt__csctx_rline_to(c, s[i], 0);
+            i++;
+      vlineto:
+            if (i >= sp) break;
+            stbtt__csctx_rline_to(c, 0, s[i]);
+            i++;
+         }
+         break;
+
+      case 0x1F: // hvcurveto
+         if (sp < 4) return STBTT__CSERR("hvcurveto stack");
+         goto hvcurveto;
+      case 0x1E: // vhcurveto
+         if (sp < 4) return STBTT__CSERR("vhcurveto stack");
+         for (;;) {
+            if (i + 3 >= sp) break;
+            stbtt__csctx_rccurve_to(c, 0, s[i], s[i+1], s[i+2], s[i+3], (sp - i == 5) ? s[i + 4] : 0.0f);
+            i += 4;
+      hvcurveto:
+            if (i + 3 >= sp) break;
+            stbtt__csctx_rccurve_to(c, s[i], 0, s[i+1], s[i+2], (sp - i == 5) ? s[i+4] : 0.0f, s[i+3]);
+            i += 4;
+         }
+         break;
+
+      case 0x08: // rrcurveto
+         if (sp < 6) return STBTT__CSERR("rcurveline stack");
+         for (; i + 5 < sp; i += 6)
+            stbtt__csctx_rccurve_to(c, s[i], s[i+1], s[i+2], s[i+3], s[i+4], s[i+5]);
+         break;
+
+      case 0x18: // rcurveline
+         if (sp < 8) return STBTT__CSERR("rcurveline stack");
+         for (; i + 5 < sp - 2; i += 6)
+            stbtt__csctx_rccurve_to(c, s[i], s[i+1], s[i+2], s[i+3], s[i+4], s[i+5]);
+         if (i + 1 >= sp) return STBTT__CSERR("rcurveline stack");
+         stbtt__csctx_rline_to(c, s[i], s[i+1]);
+         break;
+
+      case 0x19: // rlinecurve
+         if (sp < 8) return STBTT__CSERR("rlinecurve stack");
+         for (; i + 1 < sp - 6; i += 2)
+            stbtt__csctx_rline_to(c, s[i], s[i+1]);
+         if (i + 5 >= sp) return STBTT__CSERR("rlinecurve stack");
+         stbtt__csctx_rccurve_to(c, s[i], s[i+1], s[i+2], s[i+3], s[i+4], s[i+5]);
+         break;
+
+      case 0x1A: // vvcurveto
+      case 0x1B: // hhcurveto
+         if (sp < 4) return STBTT__CSERR("(vv|hh)curveto stack");
+         f = 0.0;
+         if (sp & 1) { f = s[i]; i++; }
+         for (; i + 3 < sp; i += 4) {
+            if (b0 == 0x1B)
+               stbtt__csctx_rccurve_to(c, s[i], f, s[i+1], s[i+2], s[i+3], 0.0);
+            else
+               stbtt__csctx_rccurve_to(c, f, s[i], s[i+1], s[i+2], 0.0, s[i+3]);
+            f = 0.0;
+         }
+         break;
+
+      case 0x0A: // callsubr
+         if (!has_subrs) {
+            if (info->fdselect.size)
+               subrs = stbtt__cid_get_glyph_subrs(info, glyph_index);
+            has_subrs = 1;
+         }
+         // FALLTHROUGH
+      case 0x1D: // callgsubr
+         if (sp < 1) return STBTT__CSERR("call(g|)subr stack");
+         v = (int) s[--sp];
+         if (subr_stack_height >= 10) return STBTT__CSERR("recursion limit");
+         subr_stack[subr_stack_height++] = b;
+         b = stbtt__get_subr(b0 == 0x0A ? subrs : info->gsubrs, v);
+         if (b.size == 0) return STBTT__CSERR("subr not found");
+         b.cursor = 0;
+         clear_stack = 0;
+         break;
+
+      case 0x0B: // return
+         if (subr_stack_height <= 0) return STBTT__CSERR("return outside subr");
+         b = subr_stack[--subr_stack_height];
+         clear_stack = 0;
+         break;
+
+      case 0x0E: // endchar
+         stbtt__csctx_close_shape(c);
+         return 1;
+
+      case 0x0C: { // two-byte escape
+         float dx1, dx2, dx3, dx4, dx5, dx6, dy1, dy2, dy3, dy4, dy5, dy6;
+         float dx, dy;
+         int b1 = stbtt__buf_get8(&b);
+         switch (b1) {
+         // @TODO These "flex" implementations ignore the flex-depth and resolution,
+         // and always draw beziers.
+         case 0x22: // hflex
+            if (sp < 7) return STBTT__CSERR("hflex stack");
+            dx1 = s[0];
+            dx2 = s[1];
+            dy2 = s[2];
+            dx3 = s[3];
+            dx4 = s[4];
+            dx5 = s[5];
+            dx6 = s[6];
+            stbtt__csctx_rccurve_to(c, dx1, 0, dx2, dy2, dx3, 0);
+            stbtt__csctx_rccurve_to(c, dx4, 0, dx5, -dy2, dx6, 0);
+            break;
+
+         case 0x23: // flex
+            if (sp < 13) return STBTT__CSERR("flex stack");
+            dx1 = s[0];
+            dy1 = s[1];
+            dx2 = s[2];
+            dy2 = s[3];
+            dx3 = s[4];
+            dy3 = s[5];
+            dx4 = s[6];
+            dy4 = s[7];
+            dx5 = s[8];
+            dy5 = s[9];
+            dx6 = s[10];
+            dy6 = s[11];
+            //fd is s[12]
+            stbtt__csctx_rccurve_to(c, dx1, dy1, dx2, dy2, dx3, dy3);
+            stbtt__csctx_rccurve_to(c, dx4, dy4, dx5, dy5, dx6, dy6);
+            break;
+
+         case 0x24: // hflex1
+            if (sp < 9) return STBTT__CSERR("hflex1 stack");
+            dx1 = s[0];
+            dy1 = s[1];
+            dx2 = s[2];
+            dy2 = s[3];
+            dx3 = s[4];
+            dx4 = s[5];
+            dx5 = s[6];
+            dy5 = s[7];
+            dx6 = s[8];
+            stbtt__csctx_rccurve_to(c, dx1, dy1, dx2, dy2, dx3, 0);
+            stbtt__csctx_rccurve_to(c, dx4, 0, dx5, dy5, dx6, -(dy1+dy2+dy5));
+            break;
+
+         case 0x25: // flex1
+            if (sp < 11) return STBTT__CSERR("flex1 stack");
+            dx1 = s[0];
+            dy1 = s[1];
+            dx2 = s[2];
+            dy2 = s[3];
+            dx3 = s[4];
+            dy3 = s[5];
+            dx4 = s[6];
+            dy4 = s[7];
+            dx5 = s[8];
+            dy5 = s[9];
+            dx6 = dy6 = s[10];
+            dx = dx1+dx2+dx3+dx4+dx5;
+            dy = dy1+dy2+dy3+dy4+dy5;
+            if (STBTT_fabs(dx) > STBTT_fabs(dy))
+               dy6 = -dy;
+            else
+               dx6 = -dx;
+            stbtt__csctx_rccurve_to(c, dx1, dy1, dx2, dy2, dx3, dy3);
+            stbtt__csctx_rccurve_to(c, dx4, dy4, dx5, dy5, dx6, dy6);
+            break;
+
+         default:
+            return STBTT__CSERR("unimplemented");
+         }
+      } break;
+
+      default:
+         if (b0 != 255 && b0 != 28 && b0 < 32)
+            return STBTT__CSERR("reserved operator");
+
+         // push immediate
+         if (b0 == 255) {
+            f = (float)(stbtt_int32)stbtt__buf_get32(&b) / 0x10000;
+         } else {
+            stbtt__buf_skip(&b, -1);
+            f = (float)(stbtt_int16)stbtt__cff_int(&b);
+         }
+         if (sp >= 48) return STBTT__CSERR("push stack overflow");
+         s[sp++] = f;
+         clear_stack = 0;
+         break;
+      }
+      if (clear_stack) sp = 0;
+   }
+   return STBTT__CSERR("no endchar");
+
+#undef STBTT__CSERR
+}
+
+static int stbtt__GetGlyphShapeT2(const stbtt_fontinfo *info, int glyph_index, stbtt_vertex **pvertices)
+{
+   // runs the charstring twice, once to count and once to output (to avoid realloc)
+   stbtt__csctx count_ctx = STBTT__CSCTX_INIT(1);
+   stbtt__csctx output_ctx = STBTT__CSCTX_INIT(0);
+   if (stbtt__run_charstring(info, glyph_index, &count_ctx)) {
+      *pvertices = (stbtt_vertex*)STBTT_malloc(count_ctx.num_vertices*sizeof(stbtt_vertex), info->userdata);
+      output_ctx.pvertices = *pvertices;
+      if (stbtt__run_charstring(info, glyph_index, &output_ctx)) {
+         STBTT_assert(output_ctx.num_vertices == count_ctx.num_vertices);
+         return output_ctx.num_vertices;
+      }
+   }
+   *pvertices = NULL;
+   return 0;
+}
+
+static int stbtt__GetGlyphInfoT2(const stbtt_fontinfo *info, int glyph_index, int *x0, int *y0, int *x1, int *y1)
+{
+   stbtt__csctx c = STBTT__CSCTX_INIT(1);
+   int r = stbtt__run_charstring(info, glyph_index, &c);
+   if (x0)  *x0 = r ? c.min_x : 0;
+   if (y0)  *y0 = r ? c.min_y : 0;
+   if (x1)  *x1 = r ? c.max_x : 0;
+   if (y1)  *y1 = r ? c.max_y : 0;
+   return r ? c.num_vertices : 0;
+}
+
+STBTT_DEF int stbtt_GetGlyphShape(const stbtt_fontinfo *info, int glyph_index, stbtt_vertex **pvertices)
+{
+   if (!info->cff.size)
+      return stbtt__GetGlyphShapeTT(info, glyph_index, pvertices);
+   else
+      return stbtt__GetGlyphShapeT2(info, glyph_index, pvertices);
+}
+
+STBTT_DEF void stbtt_GetGlyphHMetrics(const stbtt_fontinfo *info, int glyph_index, int *advanceWidth, int *leftSideBearing)
+{
+   stbtt_uint16 numOfLongHorMetrics = ttUSHORT(info->data+info->hhea + 34);
+   if (glyph_index < numOfLongHorMetrics) {
+      if (advanceWidth)     *advanceWidth    = ttSHORT(info->data + info->hmtx + 4*glyph_index);
+      if (leftSideBearing)  *leftSideBearing = ttSHORT(info->data + info->hmtx + 4*glyph_index + 2);
+   } else {
+      if (advanceWidth)     *advanceWidth    = ttSHORT(info->data + info->hmtx + 4*(numOfLongHorMetrics-1));
+      if (leftSideBearing)  *leftSideBearing = ttSHORT(info->data + info->hmtx + 4*numOfLongHorMetrics + 2*(glyph_index - numOfLongHorMetrics));
+   }
+}
+
+STBTT_DEF int  stbtt_GetKerningTableLength(const stbtt_fontinfo *info)
+{
+   stbtt_uint8 *data = info->data + info->kern;
+
+   // we only look at the first table. it must be 'horizontal' and format 0.
+   if (!info->kern)
+      return 0;
+   if (ttUSHORT(data+2) < 1) // number of tables, need at least 1
+      return 0;
+   if (ttUSHORT(data+8) != 1) // horizontal flag must be set in format
+      return 0;
+
+   return ttUSHORT(data+10);
+}
+
+STBTT_DEF int stbtt_GetKerningTable(const stbtt_fontinfo *info, stbtt_kerningentry* table, int table_length)
+{
+   stbtt_uint8 *data = info->data + info->kern;
+   int k, length;
+
+   // we only look at the first table. it must be 'horizontal' and format 0.
+   if (!info->kern)
+      return 0;
+   if (ttUSHORT(data+2) < 1) // number of tables, need at least 1
+      return 0;
+   if (ttUSHORT(data+8) != 1) // horizontal flag must be set in format
+      return 0;
+
+   length = ttUSHORT(data+10);
+   if (table_length < length)
+      length = table_length;
+
+   for (k = 0; k < length; k++)
+   {
+      table[k].glyph1 = ttUSHORT(data+18+(k*6));
+      table[k].glyph2 = ttUSHORT(data+20+(k*6));
+      table[k].advance = ttSHORT(data+22+(k*6));
+   }
+
+   return length;
+}
+
+static int stbtt__GetGlyphKernInfoAdvance(const stbtt_fontinfo *info, int glyph1, int glyph2)
+{
+   stbtt_uint8 *data = info->data + info->kern;
+   stbtt_uint32 needle, straw;
+   int l, r, m;
+
+   // we only look at the first table. it must be 'horizontal' and format 0.
+   if (!info->kern)
+      return 0;
+   if (ttUSHORT(data+2) < 1) // number of tables, need at least 1
+      return 0;
+   if (ttUSHORT(data+8) != 1) // horizontal flag must be set in format
+      return 0;
+
+   l = 0;
+   r = ttUSHORT(data+10) - 1;
+   needle = glyph1 << 16 | glyph2;
+   while (l <= r) {
+      m = (l + r) >> 1;
+      straw = ttULONG(data+18+(m*6)); // note: unaligned read
+      if (needle < straw)
+         r = m - 1;
+      else if (needle > straw)
+         l = m + 1;
+      else
+         return ttSHORT(data+22+(m*6));
+   }
+   return 0;
+}
+
+static stbtt_int32 stbtt__GetCoverageIndex(stbtt_uint8 *coverageTable, int glyph)
+{
+   stbtt_uint16 coverageFormat = ttUSHORT(coverageTable);
+   switch (coverageFormat) {
+      case 1: {
+         stbtt_uint16 glyphCount = ttUSHORT(coverageTable + 2);
+
+         // Binary search.
+         stbtt_int32 l=0, r=glyphCount-1, m;
+         int straw, needle=glyph;
+         while (l <= r) {
+            stbtt_uint8 *glyphArray = coverageTable + 4;
+            stbtt_uint16 glyphID;
+            m = (l + r) >> 1;
+            glyphID = ttUSHORT(glyphArray + 2 * m);
+            straw = glyphID;
+            if (needle < straw)
+               r = m - 1;
+            else if (needle > straw)
+               l = m + 1;
+            else {
+               return m;
+            }
+         }
+         break;
+      }
+
+      case 2: {
+         stbtt_uint16 rangeCount = ttUSHORT(coverageTable + 2);
+         stbtt_uint8 *rangeArray = coverageTable + 4;
+
+         // Binary search.
+         stbtt_int32 l=0, r=rangeCount-1, m;
+         int strawStart, strawEnd, needle=glyph;
+         while (l <= r) {
+            stbtt_uint8 *rangeRecord;
+            m = (l + r) >> 1;
+            rangeRecord = rangeArray + 6 * m;
+            strawStart = ttUSHORT(rangeRecord);
+            strawEnd = ttUSHORT(rangeRecord + 2);
+            if (needle < strawStart)
+               r = m - 1;
+            else if (needle > strawEnd)
+               l = m + 1;
+            else {
+               stbtt_uint16 startCoverageIndex = ttUSHORT(rangeRecord + 4);
+               return startCoverageIndex + glyph - strawStart;
+            }
+         }
+         break;
+      }
+
+      default: return -1; // unsupported
+   }
+
+   return -1;
+}
+
+static stbtt_int32  stbtt__GetGlyphClass(stbtt_uint8 *classDefTable, int glyph)
+{
+   stbtt_uint16 classDefFormat = ttUSHORT(classDefTable);
+   switch (classDefFormat)
+   {
+      case 1: {
+         stbtt_uint16 startGlyphID = ttUSHORT(classDefTable + 2);
+         stbtt_uint16 glyphCount = ttUSHORT(classDefTable + 4);
+         stbtt_uint8 *classDef1ValueArray = classDefTable + 6;
+
+         if (glyph >= startGlyphID && glyph < startGlyphID + glyphCount)
+            return (stbtt_int32)ttUSHORT(classDef1ValueArray + 2 * (glyph - startGlyphID));
+         break;
+      }
+
+      case 2: {
+         stbtt_uint16 classRangeCount = ttUSHORT(classDefTable + 2);
+         stbtt_uint8 *classRangeRecords = classDefTable + 4;
+
+         // Binary search.
+         stbtt_int32 l=0, r=classRangeCount-1, m;
+         int strawStart, strawEnd, needle=glyph;
+         while (l <= r) {
+            stbtt_uint8 *classRangeRecord;
+            m = (l + r) >> 1;
+            classRangeRecord = classRangeRecords + 6 * m;
+            strawStart = ttUSHORT(classRangeRecord);
+            strawEnd = ttUSHORT(classRangeRecord + 2);
+            if (needle < strawStart)
+               r = m - 1;
+            else if (needle > strawEnd)
+               l = m + 1;
+            else
+               return (stbtt_int32)ttUSHORT(classRangeRecord + 4);
+         }
+         break;
+      }
+
+      default:
+         return -1; // Unsupported definition type, return an error.
+   }
+
+   // "All glyphs not assigned to a class fall into class 0". (OpenType spec)
+   return 0;
+}
+
+// Define to STBTT_assert(x) if you want to break on unimplemented formats.
+#define STBTT_GPOS_TODO_assert(x)
+
+static stbtt_int32 stbtt__GetGlyphGPOSInfoAdvance(const stbtt_fontinfo *info, int glyph1, int glyph2)
+{
+   stbtt_uint16 lookupListOffset;
+   stbtt_uint8 *lookupList;
+   stbtt_uint16 lookupCount;
+   stbtt_uint8 *data;
+   stbtt_int32 i, sti;
+
+   if (!info->gpos) return 0;
+
+   data = info->data + info->gpos;
+
+   if (ttUSHORT(data+0) != 1) return 0; // Major version 1
+   if (ttUSHORT(data+2) != 0) return 0; // Minor version 0
+
+   lookupListOffset = ttUSHORT(data+8);
+   lookupList = data + lookupListOffset;
+   lookupCount = ttUSHORT(lookupList);
+
+   for (i=0; i<lookupCount; ++i) {
+      stbtt_uint16 lookupOffset = ttUSHORT(lookupList + 2 + 2 * i);
+      stbtt_uint8 *lookupTable = lookupList + lookupOffset;
+
+      stbtt_uint16 lookupType = ttUSHORT(lookupTable);
+      stbtt_uint16 subTableCount = ttUSHORT(lookupTable + 4);
+      stbtt_uint8 *subTableOffsets = lookupTable + 6;
+      if (lookupType != 2) // Pair Adjustment Positioning Subtable
+         continue;
+
+      for (sti=0; sti<subTableCount; sti++) {
+         stbtt_uint16 subtableOffset = ttUSHORT(subTableOffsets + 2 * sti);
+         stbtt_uint8 *table = lookupTable + subtableOffset;
+         stbtt_uint16 posFormat = ttUSHORT(table);
+         stbtt_uint16 coverageOffset = ttUSHORT(table + 2);
+         stbtt_int32 coverageIndex = stbtt__GetCoverageIndex(table + coverageOffset, glyph1);
+         if (coverageIndex == -1) continue;
+
+         switch (posFormat) {
+            case 1: {
+               stbtt_int32 l, r, m;
+               int straw, needle;
+               stbtt_uint16 valueFormat1 = ttUSHORT(table + 4);
+               stbtt_uint16 valueFormat2 = ttUSHORT(table + 6);
+               if (valueFormat1 == 4 && valueFormat2 == 0) { // Support more formats?
+                  stbtt_int32 valueRecordPairSizeInBytes = 2;
+                  stbtt_uint16 pairSetCount = ttUSHORT(table + 8);
+                  stbtt_uint16 pairPosOffset = ttUSHORT(table + 10 + 2 * coverageIndex);
+                  stbtt_uint8 *pairValueTable = table + pairPosOffset;
+                  stbtt_uint16 pairValueCount = ttUSHORT(pairValueTable);
+                  stbtt_uint8 *pairValueArray = pairValueTable + 2;
+
+                  if (coverageIndex >= pairSetCount) return 0;
+
+                  needle=glyph2;
+                  r=pairValueCount-1;
+                  l=0;
+
+                  // Binary search.
+                  while (l <= r) {
+                     stbtt_uint16 secondGlyph;
+                     stbtt_uint8 *pairValue;
+                     m = (l + r) >> 1;
+                     pairValue = pairValueArray + (2 + valueRecordPairSizeInBytes) * m;
+                     secondGlyph = ttUSHORT(pairValue);
+                     straw = secondGlyph;
+                     if (needle < straw)
+                        r = m - 1;
+                     else if (needle > straw)
+                        l = m + 1;
+                     else {
+                        stbtt_int16 xAdvance = ttSHORT(pairValue + 2);
+                        return xAdvance;
+                     }
+                  }
+               } else
+                  return 0;
+               break;
+            }
+
+            case 2: {
+               stbtt_uint16 valueFormat1 = ttUSHORT(table + 4);
+               stbtt_uint16 valueFormat2 = ttUSHORT(table + 6);
+               if (valueFormat1 == 4 && valueFormat2 == 0) { // Support more formats?
+                  stbtt_uint16 classDef1Offset = ttUSHORT(table + 8);
+                  stbtt_uint16 classDef2Offset = ttUSHORT(table + 10);
+                  int glyph1class = stbtt__GetGlyphClass(table + classDef1Offset, glyph1);
+                  int glyph2class = stbtt__GetGlyphClass(table + classDef2Offset, glyph2);
+
+                  stbtt_uint16 class1Count = ttUSHORT(table + 12);
+                  stbtt_uint16 class2Count = ttUSHORT(table + 14);
+                  stbtt_uint8 *class1Records, *class2Records;
+                  stbtt_int16 xAdvance;
+
+                  if (glyph1class < 0 || glyph1class >= class1Count) return 0; // malformed
+                  if (glyph2class < 0 || glyph2class >= class2Count) return 0; // malformed
+
+                  class1Records = table + 16;
+                  class2Records = class1Records + 2 * (glyph1class * class2Count);
+                  xAdvance = ttSHORT(class2Records + 2 * glyph2class);
+                  return xAdvance;
+               } else
+                  return 0;
+               break;
+            }
+
+            default:
+               return 0; // Unsupported position format
+         }
+      }
+   }
+
+   return 0;
+}
+
+STBTT_DEF int  stbtt_GetGlyphKernAdvance(const stbtt_fontinfo *info, int g1, int g2)
+{
+   int xAdvance = 0;
+
+   if (info->gpos)
+      xAdvance += stbtt__GetGlyphGPOSInfoAdvance(info, g1, g2);
+   else if (info->kern)
+      xAdvance += stbtt__GetGlyphKernInfoAdvance(info, g1, g2);
+
+   return xAdvance;
+}
+
+STBTT_DEF int  stbtt_GetCodepointKernAdvance(const stbtt_fontinfo *info, int ch1, int ch2)
+{
+   if (!info->kern && !info->gpos) // if no kerning table, don't waste time looking up both codepoint->glyphs
+      return 0;
+   return stbtt_GetGlyphKernAdvance(info, stbtt_FindGlyphIndex(info,ch1), stbtt_FindGlyphIndex(info,ch2));
+}
+
+STBTT_DEF void stbtt_GetCodepointHMetrics(const stbtt_fontinfo *info, int codepoint, int *advanceWidth, int *leftSideBearing)
+{
+   stbtt_GetGlyphHMetrics(info, stbtt_FindGlyphIndex(info,codepoint), advanceWidth, leftSideBearing);
+}
+
+STBTT_DEF void stbtt_GetFontVMetrics(const stbtt_fontinfo *info, int *ascent, int *descent, int *lineGap)
+{
+   if (ascent ) *ascent  = ttSHORT(info->data+info->hhea + 4);
+   if (descent) *descent = ttSHORT(info->data+info->hhea + 6);
+   if (lineGap) *lineGap = ttSHORT(info->data+info->hhea + 8);
+}
+
+STBTT_DEF int  stbtt_GetFontVMetricsOS2(const stbtt_fontinfo *info, int *typoAscent, int *typoDescent, int *typoLineGap)
+{
+   int tab = stbtt__find_table(info->data, info->fontstart, "OS/2");
+   if (!tab)
+      return 0;
+   if (typoAscent ) *typoAscent  = ttSHORT(info->data+tab + 68);
+   if (typoDescent) *typoDescent = ttSHORT(info->data+tab + 70);
+   if (typoLineGap) *typoLineGap = ttSHORT(info->data+tab + 72);
+   return 1;
+}
+
+STBTT_DEF void stbtt_GetFontBoundingBox(const stbtt_fontinfo *info, int *x0, int *y0, int *x1, int *y1)
+{
+   *x0 = ttSHORT(info->data + info->head + 36);
+   *y0 = ttSHORT(info->data + info->head + 38);
+   *x1 = ttSHORT(info->data + info->head + 40);
+   *y1 = ttSHORT(info->data + info->head + 42);
+}
+
+STBTT_DEF float stbtt_ScaleForPixelHeight(const stbtt_fontinfo *info, float height)
+{
+   int fheight = ttSHORT(info->data + info->hhea + 4) - ttSHORT(info->data + info->hhea + 6);
+   return (float) height / fheight;
+}
+
+STBTT_DEF float stbtt_ScaleForMappingEmToPixels(const stbtt_fontinfo *info, float pixels)
+{
+   int unitsPerEm = ttUSHORT(info->data + info->head + 18);
+   return pixels / unitsPerEm;
+}
+
+STBTT_DEF void stbtt_FreeShape(const stbtt_fontinfo *info, stbtt_vertex *v)
+{
+   STBTT_free(v, info->userdata);
+}
+
+STBTT_DEF stbtt_uint8 *stbtt_FindSVGDoc(const stbtt_fontinfo *info, int gl)
+{
+   int i;
+   stbtt_uint8 *data = info->data;
+   stbtt_uint8 *svg_doc_list = data + stbtt__get_svg((stbtt_fontinfo *) info);
+
+   int numEntries = ttUSHORT(svg_doc_list);
+   stbtt_uint8 *svg_docs = svg_doc_list + 2;
+
+   for(i=0; i<numEntries; i++) {
+      stbtt_uint8 *svg_doc = svg_docs + (12 * i);
+      if ((gl >= ttUSHORT(svg_doc)) && (gl <= ttUSHORT(svg_doc + 2)))
+         return svg_doc;
+   }
+   return 0;
+}
+
+STBTT_DEF int stbtt_GetGlyphSVG(const stbtt_fontinfo *info, int gl, const char **svg)
+{
+   stbtt_uint8 *data = info->data;
+   stbtt_uint8 *svg_doc;
+
+   if (info->svg == 0)
+      return 0;
+
+   svg_doc = stbtt_FindSVGDoc(info, gl);
+   if (svg_doc != NULL) {
+      *svg = (char *) data + info->svg + ttULONG(svg_doc + 4);
+      return ttULONG(svg_doc + 8);
+   } else {
+      return 0;
+   }
+}
+
+STBTT_DEF int stbtt_GetCodepointSVG(const stbtt_fontinfo *info, int unicode_codepoint, const char **svg)
+{
+   return stbtt_GetGlyphSVG(info, stbtt_FindGlyphIndex(info, unicode_codepoint), svg);
+}
+
+//////////////////////////////////////////////////////////////////////////////
+//
+// antialiasing software rasterizer
+//
+
+STBTT_DEF void stbtt_GetGlyphBitmapBoxSubpixel(const stbtt_fontinfo *font, int glyph, float scale_x, float scale_y,float shift_x, float shift_y, int *ix0, int *iy0, int *ix1, int *iy1)
+{
+   int x0=0,y0=0,x1,y1; // =0 suppresses compiler warning
+   if (!stbtt_GetGlyphBox(font, glyph, &x0,&y0,&x1,&y1)) {
+      // e.g. space character
+      if (ix0) *ix0 = 0;
+      if (iy0) *iy0 = 0;
+      if (ix1) *ix1 = 0;
+      if (iy1) *iy1 = 0;
+   } else {
+      // move to integral bboxes (treating pixels as little squares, what pixels get touched)?
+      if (ix0) *ix0 = STBTT_ifloor( x0 * scale_x + shift_x);
+      if (iy0) *iy0 = STBTT_ifloor(-y1 * scale_y + shift_y);
+      if (ix1) *ix1 = STBTT_iceil ( x1 * scale_x + shift_x);
+      if (iy1) *iy1 = STBTT_iceil (-y0 * scale_y + shift_y);
+   }
+}
+
+STBTT_DEF void stbtt_GetGlyphBitmapBox(const stbtt_fontinfo *font, int glyph, float scale_x, float scale_y, int *ix0, int *iy0, int *ix1, int *iy1)
+{
+   stbtt_GetGlyphBitmapBoxSubpixel(font, glyph, scale_x, scale_y,0.0f,0.0f, ix0, iy0, ix1, iy1);
+}
+
+STBTT_DEF void stbtt_GetCodepointBitmapBoxSubpixel(const stbtt_fontinfo *font, int codepoint, float scale_x, float scale_y, float shift_x, float shift_y, int *ix0, int *iy0, int *ix1, int *iy1)
+{
+   stbtt_GetGlyphBitmapBoxSubpixel(font, stbtt_FindGlyphIndex(font,codepoint), scale_x, scale_y,shift_x,shift_y, ix0,iy0,ix1,iy1);
+}
+
+STBTT_DEF void stbtt_GetCodepointBitmapBox(const stbtt_fontinfo *font, int codepoint, float scale_x, float scale_y, int *ix0, int *iy0, int *ix1, int *iy1)
+{
+   stbtt_GetCodepointBitmapBoxSubpixel(font, codepoint, scale_x, scale_y,0.0f,0.0f, ix0,iy0,ix1,iy1);
+}
+
+//////////////////////////////////////////////////////////////////////////////
+//
+//  Rasterizer
+
+typedef struct stbtt__hheap_chunk
+{
+   struct stbtt__hheap_chunk *next;
+} stbtt__hheap_chunk;
+
+typedef struct stbtt__hheap
+{
+   struct stbtt__hheap_chunk *head;
+   void   *first_free;
+   int    num_remaining_in_head_chunk;
+} stbtt__hheap;
+
+static void *stbtt__hheap_alloc(stbtt__hheap *hh, size_t size, void *userdata)
+{
+   if (hh->first_free) {
+      void *p = hh->first_free;
+      hh->first_free = * (void **) p;
+      return p;
+   } else {
+      if (hh->num_remaining_in_head_chunk == 0) {
+         int count = (size < 32 ? 2000 : size < 128 ? 800 : 100);
+         stbtt__hheap_chunk *c = (stbtt__hheap_chunk *) STBTT_malloc(sizeof(stbtt__hheap_chunk) + size * count, userdata);
+         if (c == NULL)
+            return NULL;
+         c->next = hh->head;
+         hh->head = c;
+         hh->num_remaining_in_head_chunk = count;
+      }
+      --hh->num_remaining_in_head_chunk;
+      return (char *) (hh->head) + sizeof(stbtt__hheap_chunk) + size * hh->num_remaining_in_head_chunk;
+   }
+}
+
+static void stbtt__hheap_free(stbtt__hheap *hh, void *p)
+{
+   *(void **) p = hh->first_free;
+   hh->first_free = p;
+}
+
+static void stbtt__hheap_cleanup(stbtt__hheap *hh, void *userdata)
+{
+   stbtt__hheap_chunk *c = hh->head;
+   while (c) {
+      stbtt__hheap_chunk *n = c->next;
+      STBTT_free(c, userdata);
+      c = n;
+   }
+}
+
+typedef struct stbtt__edge {
+   float x0,y0, x1,y1;
+   int invert;
+} stbtt__edge;
+
+
+typedef struct stbtt__active_edge
+{
+   struct stbtt__active_edge *next;
+   #if STBTT_RASTERIZER_VERSION==1
+   int x,dx;
+   float ey;
+   int direction;
+   #elif STBTT_RASTERIZER_VERSION==2
+   float fx,fdx,fdy;
+   float direction;
+   float sy;
+   float ey;
+   #else
+   #error "Unrecognized value of STBTT_RASTERIZER_VERSION"
+   #endif
+} stbtt__active_edge;
+
+#if STBTT_RASTERIZER_VERSION == 1
+#define STBTT_FIXSHIFT   10
+#define STBTT_FIX        (1 << STBTT_FIXSHIFT)
+#define STBTT_FIXMASK    (STBTT_FIX-1)
+
+static stbtt__active_edge *stbtt__new_active(stbtt__hheap *hh, stbtt__edge *e, int off_x, float start_point, void *userdata)
+{
+   stbtt__active_edge *z = (stbtt__active_edge *) stbtt__hheap_alloc(hh, sizeof(*z), userdata);
+   float dxdy = (e->x1 - e->x0) / (e->y1 - e->y0);
+   STBTT_assert(z != NULL);
+   if (!z) return z;
+
+   // round dx down to avoid overshooting
+   if (dxdy < 0)
+      z->dx = -STBTT_ifloor(STBTT_FIX * -dxdy);
+   else
+      z->dx = STBTT_ifloor(STBTT_FIX * dxdy);
+
+   z->x = STBTT_ifloor(STBTT_FIX * e->x0 + z->dx * (start_point - e->y0)); // use z->dx so when we offset later it's by the same amount
+   z->x -= off_x * STBTT_FIX;
+
+   z->ey = e->y1;
+   z->next = 0;
+   z->direction = e->invert ? 1 : -1;
+   return z;
+}
+#elif STBTT_RASTERIZER_VERSION == 2
+static stbtt__active_edge *stbtt__new_active(stbtt__hheap *hh, stbtt__edge *e, int off_x, float start_point, void *userdata)
+{
+   stbtt__active_edge *z = (stbtt__active_edge *) stbtt__hheap_alloc(hh, sizeof(*z), userdata);
+   float dxdy = (e->x1 - e->x0) / (e->y1 - e->y0);
+   STBTT_assert(z != NULL);
+   //STBTT_assert(e->y0 <= start_point);
+   if (!z) return z;
+   z->fdx = dxdy;
+   z->fdy = dxdy != 0.0f ? (1.0f/dxdy) : 0.0f;
+   z->fx = e->x0 + dxdy * (start_point - e->y0);
+   z->fx -= off_x;
+   z->direction = e->invert ? 1.0f : -1.0f;
+   z->sy = e->y0;
+   z->ey = e->y1;
+   z->next = 0;
+   return z;
+}
+#else
+#error "Unrecognized value of STBTT_RASTERIZER_VERSION"
+#endif
+
+#if STBTT_RASTERIZER_VERSION == 1
+// note: this routine clips fills that extend off the edges... ideally this
+// wouldn't happen, but it could happen if the truetype glyph bounding boxes
+// are wrong, or if the user supplies a too-small bitmap
+static void stbtt__fill_active_edges(unsigned char *scanline, int len, stbtt__active_edge *e, int max_weight)
+{
+   // non-zero winding fill
+   int x0=0, w=0;
+
+   while (e) {
+      if (w == 0) {
+         // if we're currently at zero, we need to record the edge start point
+         x0 = e->x; w += e->direction;
+      } else {
+         int x1 = e->x; w += e->direction;
+         // if we went to zero, we need to draw
+         if (w == 0) {
+            int i = x0 >> STBTT_FIXSHIFT;
+            int j = x1 >> STBTT_FIXSHIFT;
+
+            if (i < len && j >= 0) {
+               if (i == j) {
+                  // x0,x1 are the same pixel, so compute combined coverage
+                  scanline[i] = scanline[i] + (stbtt_uint8) ((x1 - x0) * max_weight >> STBTT_FIXSHIFT);
+               } else {
+                  if (i >= 0) // add antialiasing for x0
+                     scanline[i] = scanline[i] + (stbtt_uint8) (((STBTT_FIX - (x0 & STBTT_FIXMASK)) * max_weight) >> STBTT_FIXSHIFT);
+                  else
+                     i = -1; // clip
+
+                  if (j < len) // add antialiasing for x1
+                     scanline[j] = scanline[j] + (stbtt_uint8) (((x1 & STBTT_FIXMASK) * max_weight) >> STBTT_FIXSHIFT);
+                  else
+                     j = len; // clip
+
+                  for (++i; i < j; ++i) // fill pixels between x0 and x1
+                     scanline[i] = scanline[i] + (stbtt_uint8) max_weight;
+               }
+            }
+         }
+      }
+
+      e = e->next;
+   }
+}
+
+static void stbtt__rasterize_sorted_edges(stbtt__bitmap *result, stbtt__edge *e, int n, int vsubsample, int off_x, int off_y, void *userdata)
+{
+   stbtt__hheap hh = { 0, 0, 0 };
+   stbtt__active_edge *active = NULL;
+   int y,j=0;
+   int max_weight = (255 / vsubsample);  // weight per vertical scanline
+   int s; // vertical subsample index
+   unsigned char scanline_data[512], *scanline;
+
+   if (result->w > 512)
+      scanline = (unsigned char *) STBTT_malloc(result->w, userdata);
+   else
+      scanline = scanline_data;
+
+   y = off_y * vsubsample;
+   e[n].y0 = (off_y + result->h) * (float) vsubsample + 1;
+
+   while (j < result->h) {
+      STBTT_memset(scanline, 0, result->w);
+      for (s=0; s < vsubsample; ++s) {
+         // find center of pixel for this scanline
+         float scan_y = y + 0.5f;
+         stbtt__active_edge **step = &active;
+
+         // update all active edges;
+         // remove all active edges that terminate before the center of this scanline
+         while (*step) {
+            stbtt__active_edge * z = *step;
+            if (z->ey <= scan_y) {
+               *step = z->next; // delete from list
+               STBTT_assert(z->direction);
+               z->direction = 0;
+               stbtt__hheap_free(&hh, z);
+            } else {
+               z->x += z->dx; // advance to position for current scanline
+               step = &((*step)->next); // advance through list
+            }
+         }
+
+         // resort the list if needed
+         for(;;) {
+            int changed=0;
+            step = &active;
+            while (*step && (*step)->next) {
+               if ((*step)->x > (*step)->next->x) {
+                  stbtt__active_edge *t = *step;
+                  stbtt__active_edge *q = t->next;
+
+                  t->next = q->next;
+                  q->next = t;
+                  *step = q;
+                  changed = 1;
+               }
+               step = &(*step)->next;
+            }
+            if (!changed) break;
+         }
+
+         // insert all edges that start before the center of this scanline -- omit ones that also end on this scanline
+         while (e->y0 <= scan_y) {
+            if (e->y1 > scan_y) {
+               stbtt__active_edge *z = stbtt__new_active(&hh, e, off_x, scan_y, userdata);
+               if (z != NULL) {
+                  // find insertion point
+                  if (active == NULL)
+                     active = z;
+                  else if (z->x < active->x) {
+                     // insert at front
+                     z->next = active;
+                     active = z;
+                  } else {
+                     // find thing to insert AFTER
+                     stbtt__active_edge *p = active;
+                     while (p->next && p->next->x < z->x)
+                        p = p->next;
+                     // at this point, p->next->x is NOT < z->x
+                     z->next = p->next;
+                     p->next = z;
+                  }
+               }
+            }
+            ++e;
+         }
+
+         // now process all active edges in XOR fashion
+         if (active)
+            stbtt__fill_active_edges(scanline, result->w, active, max_weight);
+
+         ++y;
+      }
+      STBTT_memcpy(result->pixels + j * result->stride, scanline, result->w);
+      ++j;
+   }
+
+   stbtt__hheap_cleanup(&hh, userdata);
+
+   if (scanline != scanline_data)
+      STBTT_free(scanline, userdata);
+}
+
+#elif STBTT_RASTERIZER_VERSION == 2
+
+// the edge passed in here does not cross the vertical line at x or the vertical line at x+1
+// (i.e. it has already been clipped to those)
+static void stbtt__handle_clipped_edge(float *scanline, int x, stbtt__active_edge *e, float x0, float y0, float x1, float y1)
+{
+   if (y0 == y1) return;
+   STBTT_assert(y0 < y1);
+   STBTT_assert(e->sy <= e->ey);
+   if (y0 > e->ey) return;
+   if (y1 < e->sy) return;
+   if (y0 < e->sy) {
+      x0 += (x1-x0) * (e->sy - y0) / (y1-y0);
+      y0 = e->sy;
+   }
+   if (y1 > e->ey) {
+      x1 += (x1-x0) * (e->ey - y1) / (y1-y0);
+      y1 = e->ey;
+   }
+
+   if (x0 == x)
+      STBTT_assert(x1 <= x+1);
+   else if (x0 == x+1)
+      STBTT_assert(x1 >= x);
+   else if (x0 <= x)
+      STBTT_assert(x1 <= x);
+   else if (x0 >= x+1)
+      STBTT_assert(x1 >= x+1);
+   else
+      STBTT_assert(x1 >= x && x1 <= x+1);
+
+   if (x0 <= x && x1 <= x)
+      scanline[x] += e->direction * (y1-y0);
+   else if (x0 >= x+1 && x1 >= x+1)
+      ;
+   else {
+      STBTT_assert(x0 >= x && x0 <= x+1 && x1 >= x && x1 <= x+1);
+      scanline[x] += e->direction * (y1-y0) * (1-((x0-x)+(x1-x))/2); // coverage = 1 - average x position
+   }
+}
+
+static float stbtt__sized_trapezoid_area(float height, float top_width, float bottom_width)
+{
+   STBTT_assert(top_width >= 0);
+   STBTT_assert(bottom_width >= 0);
+   return (top_width + bottom_width) / 2.0f * height;
+}
+
+static float stbtt__position_trapezoid_area(float height, float tx0, float tx1, float bx0, float bx1)
+{
+   return stbtt__sized_trapezoid_area(height, tx1 - tx0, bx1 - bx0);
+}
+
+static float stbtt__sized_triangle_area(float height, float width)
+{
+   return height * width / 2;
+}
+
+static void stbtt__fill_active_edges_new(float *scanline, float *scanline_fill, int len, stbtt__active_edge *e, float y_top)
+{
+   float y_bottom = y_top+1;
+
+   while (e) {
+      // brute force every pixel
+
+      // compute intersection points with top & bottom
+      STBTT_assert(e->ey >= y_top);
+
+      if (e->fdx == 0) {
+         float x0 = e->fx;
+         if (x0 < len) {
+            if (x0 >= 0) {
+               stbtt__handle_clipped_edge(scanline,(int) x0,e, x0,y_top, x0,y_bottom);
+               stbtt__handle_clipped_edge(scanline_fill-1,(int) x0+1,e, x0,y_top, x0,y_bottom);
+            } else {
+               stbtt__handle_clipped_edge(scanline_fill-1,0,e, x0,y_top, x0,y_bottom);
+            }
+         }
+      } else {
+         float x0 = e->fx;
+         float dx = e->fdx;
+         float xb = x0 + dx;
+         float x_top, x_bottom;
+         float sy0,sy1;
+         float dy = e->fdy;
+         STBTT_assert(e->sy <= y_bottom && e->ey >= y_top);
+
+         // compute endpoints of line segment clipped to this scanline (if the
+         // line segment starts on this scanline. x0 is the intersection of the
+         // line with y_top, but that may be off the line segment.
+         if (e->sy > y_top) {
+            x_top = x0 + dx * (e->sy - y_top);
+            sy0 = e->sy;
+         } else {
+            x_top = x0;
+            sy0 = y_top;
+         }
+         if (e->ey < y_bottom) {
+            x_bottom = x0 + dx * (e->ey - y_top);
+            sy1 = e->ey;
+         } else {
+            x_bottom = xb;
+            sy1 = y_bottom;
+         }
+
+         if (x_top >= 0 && x_bottom >= 0 && x_top < len && x_bottom < len) {
+            // from here on, we don't have to range check x values
+
+            if ((int) x_top == (int) x_bottom) {
+               float height;
+               // simple case, only spans one pixel
+               int x = (int) x_top;
+               height = (sy1 - sy0) * e->direction;
+               STBTT_assert(x >= 0 && x < len);
+               scanline[x]      += stbtt__position_trapezoid_area(height, x_top, x+1.0f, x_bottom, x+1.0f);
+               scanline_fill[x] += height; // everything right of this pixel is filled
+            } else {
+               int x,x1,x2;
+               float y_crossing, y_final, step, sign, area;
+               // covers 2+ pixels
+               if (x_top > x_bottom) {
+                  // flip scanline vertically; signed area is the same
+                  float t;
+                  sy0 = y_bottom - (sy0 - y_top);
+                  sy1 = y_bottom - (sy1 - y_top);
+                  t = sy0, sy0 = sy1, sy1 = t;
+                  t = x_bottom, x_bottom = x_top, x_top = t;
+                  dx = -dx;
+                  dy = -dy;
+                  t = x0, x0 = xb, xb = t;
+               }
+               STBTT_assert(dy >= 0);
+               STBTT_assert(dx >= 0);
+
+               x1 = (int) x_top;
+               x2 = (int) x_bottom;
+               // compute intersection with y axis at x1+1
+               y_crossing = y_top + dy * (x1+1 - x0);
+
+               // compute intersection with y axis at x2
+               y_final = y_top + dy * (x2 - x0);
+
+               //           x1    x_top                            x2    x_bottom
+               //     y_top  +------|-----+------------+------------+--------|---+------------+
+               //            |            |            |            |            |            |
+               //            |            |            |            |            |            |
+               //       sy0  |      Txxxxx|............|............|............|............|
+               // y_crossing |            *xxxxx.......|............|............|............|
+               //            |            |     xxxxx..|............|............|............|
+               //            |            |     /-   xx*xxxx........|............|............|
+               //            |            | dy <       |    xxxxxx..|............|............|
+               //   y_final  |            |     \-     |          xx*xxx.........|............|
+               //       sy1  |            |            |            |   xxxxxB...|............|
+               //            |            |            |            |            |            |
+               //            |            |            |            |            |            |
+               //  y_bottom  +------------+------------+------------+------------+------------+
+               //
+               // goal is to measure the area covered by '.' in each pixel
+
+               // if x2 is right at the right edge of x1, y_crossing can blow up, github #1057
+               // @TODO: maybe test against sy1 rather than y_bottom?
+               if (y_crossing > y_bottom)
+                  y_crossing = y_bottom;
+
+               sign = e->direction;
+
+               // area of the rectangle covered from sy0..y_crossing
+               area = sign * (y_crossing-sy0);
+
+               // area of the triangle (x_top,sy0), (x1+1,sy0), (x1+1,y_crossing)
+               scanline[x1] += stbtt__sized_triangle_area(area, x1+1 - x_top);
+
+               // check if final y_crossing is blown up; no test case for this
+               if (y_final > y_bottom) {
+                  int denom = (x2 - (x1+1));
+                  y_final = y_bottom;
+                  if (denom != 0) { // [DEAR IMGUI] Avoid div by zero (https://github.com/nothings/stb/issues/1316)
+                     dy = (y_final - y_crossing ) / denom; // if denom=0, y_final = y_crossing, so y_final <= y_bottom
+                  }
+               }
+
+               // in second pixel, area covered by line segment found in first pixel
+               // is always a rectangle 1 wide * the height of that line segment; this
+               // is exactly what the variable 'area' stores. it also gets a contribution
+               // from the line segment within it. the THIRD pixel will get the first
+               // pixel's rectangle contribution, the second pixel's rectangle contribution,
+               // and its own contribution. the 'own contribution' is the same in every pixel except
+               // the leftmost and rightmost, a trapezoid that slides down in each pixel.
+               // the second pixel's contribution to the third pixel will be the
+               // rectangle 1 wide times the height change in the second pixel, which is dy.
+
+               step = sign * dy * 1; // dy is dy/dx, change in y for every 1 change in x,
+               // which multiplied by 1-pixel-width is how much pixel area changes for each step in x
+               // so the area advances by 'step' every time
+
+               for (x = x1+1; x < x2; ++x) {
+                  scanline[x] += area + step/2; // area of trapezoid is 1*step/2
+                  area += step;
+               }
+               STBTT_assert(STBTT_fabs(area) <= 1.01f); // accumulated error from area += step unless we round step down
+               STBTT_assert(sy1 > y_final-0.01f);
+
+               // area covered in the last pixel is the rectangle from all the pixels to the left,
+               // plus the trapezoid filled by the line segment in this pixel all the way to the right edge
+               scanline[x2] += area + sign * stbtt__position_trapezoid_area(sy1-y_final, (float) x2, x2+1.0f, x_bottom, x2+1.0f);
+
+               // the rest of the line is filled based on the total height of the line segment in this pixel
+               scanline_fill[x2] += sign * (sy1-sy0);
+            }
+         } else {
+            // if edge goes outside of box we're drawing, we require
+            // clipping logic. since this does not match the intended use
+            // of this library, we use a different, very slow brute
+            // force implementation
+            // note though that this does happen some of the time because
+            // x_top and x_bottom can be extrapolated at the top & bottom of
+            // the shape and actually lie outside the bounding box
+            int x;
+            for (x=0; x < len; ++x) {
+               // cases:
+               //
+               // there can be up to two intersections with the pixel. any intersection
+               // with left or right edges can be handled by splitting into two (or three)
+               // regions. intersections with top & bottom do not necessitate case-wise logic.
+               //
+               // the old way of doing this found the intersections with the left & right edges,
+               // then used some simple logic to produce up to three segments in sorted order
+               // from top-to-bottom. however, this had a problem: if an x edge was epsilon
+               // across the x border, then the corresponding y position might not be distinct
+               // from the other y segment, and it might ignored as an empty segment. to avoid
+               // that, we need to explicitly produce segments based on x positions.
+
+               // rename variables to clearly-defined pairs
+               float y0 = y_top;
+               float x1 = (float) (x);
+               float x2 = (float) (x+1);
+               float x3 = xb;
+               float y3 = y_bottom;
+
+               // x = e->x + e->dx * (y-y_top)
+               // (y-y_top) = (x - e->x) / e->dx
+               // y = (x - e->x) / e->dx + y_top
+               float y1 = (x - x0) / dx + y_top;
+               float y2 = (x+1 - x0) / dx + y_top;
+
+               if (x0 < x1 && x3 > x2) {         // three segments descending down-right
+                  stbtt__handle_clipped_edge(scanline,x,e, x0,y0, x1,y1);
+                  stbtt__handle_clipped_edge(scanline,x,e, x1,y1, x2,y2);
+                  stbtt__handle_clipped_edge(scanline,x,e, x2,y2, x3,y3);
+               } else if (x3 < x1 && x0 > x2) {  // three segments descending down-left
+                  stbtt__handle_clipped_edge(scanline,x,e, x0,y0, x2,y2);
+                  stbtt__handle_clipped_edge(scanline,x,e, x2,y2, x1,y1);
+                  stbtt__handle_clipped_edge(scanline,x,e, x1,y1, x3,y3);
+               } else if (x0 < x1 && x3 > x1) {  // two segments across x, down-right
+                  stbtt__handle_clipped_edge(scanline,x,e, x0,y0, x1,y1);
+                  stbtt__handle_clipped_edge(scanline,x,e, x1,y1, x3,y3);
+               } else if (x3 < x1 && x0 > x1) {  // two segments across x, down-left
+                  stbtt__handle_clipped_edge(scanline,x,e, x0,y0, x1,y1);
+                  stbtt__handle_clipped_edge(scanline,x,e, x1,y1, x3,y3);
+               } else if (x0 < x2 && x3 > x2) {  // two segments across x+1, down-right
+                  stbtt__handle_clipped_edge(scanline,x,e, x0,y0, x2,y2);
+                  stbtt__handle_clipped_edge(scanline,x,e, x2,y2, x3,y3);
+               } else if (x3 < x2 && x0 > x2) {  // two segments across x+1, down-left
+                  stbtt__handle_clipped_edge(scanline,x,e, x0,y0, x2,y2);
+                  stbtt__handle_clipped_edge(scanline,x,e, x2,y2, x3,y3);
+               } else {  // one segment
+                  stbtt__handle_clipped_edge(scanline,x,e, x0,y0, x3,y3);
+               }
+            }
+         }
+      }
+      e = e->next;
+   }
+}
+
+// directly AA rasterize edges w/o supersampling
+static void stbtt__rasterize_sorted_edges(stbtt__bitmap *result, stbtt__edge *e, int n, int vsubsample, int off_x, int off_y, void *userdata)
+{
+   stbtt__hheap hh = { 0, 0, 0 };
+   stbtt__active_edge *active = NULL;
+   int y,j=0, i;
+   float scanline_data[129], *scanline, *scanline2;
+
+   STBTT__NOTUSED(vsubsample);
+
+   if (result->w > 64)
+      scanline = (float *) STBTT_malloc((result->w*2+1) * sizeof(float), userdata);
+   else
+      scanline = scanline_data;
+
+   scanline2 = scanline + result->w;
+
+   y = off_y;
+   e[n].y0 = (float) (off_y + result->h) + 1;
+
+   while (j < result->h) {
+      // find center of pixel for this scanline
+      float scan_y_top    = y + 0.0f;
+      float scan_y_bottom = y + 1.0f;
+      stbtt__active_edge **step = &active;
+
+      STBTT_memset(scanline , 0, result->w*sizeof(scanline[0]));
+      STBTT_memset(scanline2, 0, (result->w+1)*sizeof(scanline[0]));
+
+      // update all active edges;
+      // remove all active edges that terminate before the top of this scanline
+      while (*step) {
+         stbtt__active_edge * z = *step;
+         if (z->ey <= scan_y_top) {
+            *step = z->next; // delete from list
+            STBTT_assert(z->direction);
+            z->direction = 0;
+            stbtt__hheap_free(&hh, z);
+         } else {
+            step = &((*step)->next); // advance through list
+         }
+      }
+
+      // insert all edges that start before the bottom of this scanline
+      while (e->y0 <= scan_y_bottom) {
+         if (e->y0 != e->y1) {
+            stbtt__active_edge *z = stbtt__new_active(&hh, e, off_x, scan_y_top, userdata);
+            if (z != NULL) {
+               if (j == 0 && off_y != 0) {
+                  if (z->ey < scan_y_top) {
+                     // this can happen due to subpixel positioning and some kind of fp rounding error i think
+                     z->ey = scan_y_top;
+                  }
+               }
+               STBTT_assert(z->ey >= scan_y_top); // if we get really unlucky a tiny bit of an edge can be out of bounds
+               // insert at front
+               z->next = active;
+               active = z;
+            }
+         }
+         ++e;
+      }
+
+      // now process all active edges
+      if (active)
+         stbtt__fill_active_edges_new(scanline, scanline2+1, result->w, active, scan_y_top);
+
+      {
+         float sum = 0;
+         for (i=0; i < result->w; ++i) {
+            float k;
+            int m;
+            sum += scanline2[i];
+            k = scanline[i] + sum;
+            k = (float) STBTT_fabs(k)*255 + 0.5f;
+            m = (int) k;
+            if (m > 255) m = 255;
+            result->pixels[j*result->stride + i] = (unsigned char) m;
+         }
+      }
+      // advance all the edges
+      step = &active;
+      while (*step) {
+         stbtt__active_edge *z = *step;
+         z->fx += z->fdx; // advance to position for current scanline
+         step = &((*step)->next); // advance through list
+      }
+
+      ++y;
+      ++j;
+   }
+
+   stbtt__hheap_cleanup(&hh, userdata);
+
+   if (scanline != scanline_data)
+      STBTT_free(scanline, userdata);
+}
+#else
+#error "Unrecognized value of STBTT_RASTERIZER_VERSION"
+#endif
+
+#define STBTT__COMPARE(a,b)  ((a)->y0 < (b)->y0)
+
+static void stbtt__sort_edges_ins_sort(stbtt__edge *p, int n)
+{
+   int i,j;
+   for (i=1; i < n; ++i) {
+      stbtt__edge t = p[i], *a = &t;
+      j = i;
+      while (j > 0) {
+         stbtt__edge *b = &p[j-1];
+         int c = STBTT__COMPARE(a,b);
+         if (!c) break;
+         p[j] = p[j-1];
+         --j;
+      }
+      if (i != j)
+         p[j] = t;
+   }
+}
+
+static void stbtt__sort_edges_quicksort(stbtt__edge *p, int n)
+{
+   /* threshold for transitioning to insertion sort */
+   while (n > 12) {
+      stbtt__edge t;
+      int c01,c12,c,m,i,j;
+
+      /* compute median of three */
+      m = n >> 1;
+      c01 = STBTT__COMPARE(&p[0],&p[m]);
+      c12 = STBTT__COMPARE(&p[m],&p[n-1]);
+      /* if 0 >= mid >= end, or 0 < mid < end, then use mid */
+      if (c01 != c12) {
+         /* otherwise, we'll need to swap something else to middle */
+         int z;
+         c = STBTT__COMPARE(&p[0],&p[n-1]);
+         /* 0>mid && mid<n:  0>n => n; 0<n => 0 */
+         /* 0<mid && mid>n:  0>n => 0; 0<n => n */
+         z = (c == c12) ? 0 : n-1;
+         t = p[z];
+         p[z] = p[m];
+         p[m] = t;
+      }
+      /* now p[m] is the median-of-three */
+      /* swap it to the beginning so it won't move around */
+      t = p[0];
+      p[0] = p[m];
+      p[m] = t;
+
+      /* partition loop */
+      i=1;
+      j=n-1;
+      for(;;) {
+         /* handling of equality is crucial here */
+         /* for sentinels & efficiency with duplicates */
+         for (;;++i) {
+            if (!STBTT__COMPARE(&p[i], &p[0])) break;
+         }
+         for (;;--j) {
+            if (!STBTT__COMPARE(&p[0], &p[j])) break;
+         }
+         /* make sure we haven't crossed */
+         if (i >= j) break;
+         t = p[i];
+         p[i] = p[j];
+         p[j] = t;
+
+         ++i;
+         --j;
+      }
+      /* recurse on smaller side, iterate on larger */
+      if (j < (n-i)) {
+         stbtt__sort_edges_quicksort(p,j);
+         p = p+i;
+         n = n-i;
+      } else {
+         stbtt__sort_edges_quicksort(p+i, n-i);
+         n = j;
+      }
+   }
+}
+
+static void stbtt__sort_edges(stbtt__edge *p, int n)
+{
+   stbtt__sort_edges_quicksort(p, n);
+   stbtt__sort_edges_ins_sort(p, n);
+}
+
+typedef struct
+{
+   float x,y;
+} stbtt__point;
+
+static void stbtt__rasterize(stbtt__bitmap *result, stbtt__point *pts, int *wcount, int windings, float scale_x, float scale_y, float shift_x, float shift_y, int off_x, int off_y, int invert, void *userdata)
+{
+   float y_scale_inv = invert ? -scale_y : scale_y;
+   stbtt__edge *e;
+   int n,i,j,k,m;
+#if STBTT_RASTERIZER_VERSION == 1
+   int vsubsample = result->h < 8 ? 15 : 5;
+#elif STBTT_RASTERIZER_VERSION == 2
+   int vsubsample = 1;
+#else
+   #error "Unrecognized value of STBTT_RASTERIZER_VERSION"
+#endif
+   // vsubsample should divide 255 evenly; otherwise we won't reach full opacity
+
+   // now we have to blow out the windings into explicit edge lists
+   n = 0;
+   for (i=0; i < windings; ++i)
+      n += wcount[i];
+
+   e = (stbtt__edge *) STBTT_malloc(sizeof(*e) * (n+1), userdata); // add an extra one as a sentinel
+   if (e == 0) return;
+   n = 0;
+
+   m=0;
+   for (i=0; i < windings; ++i) {
+      stbtt__point *p = pts + m;
+      m += wcount[i];
+      j = wcount[i]-1;
+      for (k=0; k < wcount[i]; j=k++) {
+         int a=k,b=j;
+         // skip the edge if horizontal
+         if (p[j].y == p[k].y)
+            continue;
+         // add edge from j to k to the list
+         e[n].invert = 0;
+         if (invert ? p[j].y > p[k].y : p[j].y < p[k].y) {
+            e[n].invert = 1;
+            a=j,b=k;
+         }
+         e[n].x0 = p[a].x * scale_x + shift_x;
+         e[n].y0 = (p[a].y * y_scale_inv + shift_y) * vsubsample;
+         e[n].x1 = p[b].x * scale_x + shift_x;
+         e[n].y1 = (p[b].y * y_scale_inv + shift_y) * vsubsample;
+         ++n;
+      }
+   }
+
+   // now sort the edges by their highest point (should snap to integer, and then by x)
+   //STBTT_sort(e, n, sizeof(e[0]), stbtt__edge_compare);
+   stbtt__sort_edges(e, n);
+
+   // now, traverse the scanlines and find the intersections on each scanline, use xor winding rule
+   stbtt__rasterize_sorted_edges(result, e, n, vsubsample, off_x, off_y, userdata);
+
+   STBTT_free(e, userdata);
+}
+
+static void stbtt__add_point(stbtt__point *points, int n, float x, float y)
+{
+   if (!points) return; // during first pass, it's unallocated
+   points[n].x = x;
+   points[n].y = y;
+}
+
+// tessellate until threshold p is happy... @TODO warped to compensate for non-linear stretching
+static int stbtt__tesselate_curve(stbtt__point *points, int *num_points, float x0, float y0, float x1, float y1, float x2, float y2, float objspace_flatness_squared, int n)
+{
+   // midpoint
+   float mx = (x0 + 2*x1 + x2)/4;
+   float my = (y0 + 2*y1 + y2)/4;
+   // versus directly drawn line
+   float dx = (x0+x2)/2 - mx;
+   float dy = (y0+y2)/2 - my;
+   if (n > 16) // 65536 segments on one curve better be enough!
+      return 1;
+   if (dx*dx+dy*dy > objspace_flatness_squared) { // half-pixel error allowed... need to be smaller if AA
+      stbtt__tesselate_curve(points, num_points, x0,y0, (x0+x1)/2.0f,(y0+y1)/2.0f, mx,my, objspace_flatness_squared,n+1);
+      stbtt__tesselate_curve(points, num_points, mx,my, (x1+x2)/2.0f,(y1+y2)/2.0f, x2,y2, objspace_flatness_squared,n+1);
+   } else {
+      stbtt__add_point(points, *num_points,x2,y2);
+      *num_points = *num_points+1;
+   }
+   return 1;
+}
+
+static void stbtt__tesselate_cubic(stbtt__point *points, int *num_points, float x0, float y0, float x1, float y1, float x2, float y2, float x3, float y3, float objspace_flatness_squared, int n)
+{
+   // @TODO this "flatness" calculation is just made-up nonsense that seems to work well enough
+   float dx0 = x1-x0;
+   float dy0 = y1-y0;
+   float dx1 = x2-x1;
+   float dy1 = y2-y1;
+   float dx2 = x3-x2;
+   float dy2 = y3-y2;
+   float dx = x3-x0;
+   float dy = y3-y0;
+   float longlen = (float) (STBTT_sqrt(dx0*dx0+dy0*dy0)+STBTT_sqrt(dx1*dx1+dy1*dy1)+STBTT_sqrt(dx2*dx2+dy2*dy2));
+   float shortlen = (float) STBTT_sqrt(dx*dx+dy*dy);
+   float flatness_squared = longlen*longlen-shortlen*shortlen;
+
+   if (n > 16) // 65536 segments on one curve better be enough!
+      return;
+
+   if (flatness_squared > objspace_flatness_squared) {
+      float x01 = (x0+x1)/2;
+      float y01 = (y0+y1)/2;
+      float x12 = (x1+x2)/2;
+      float y12 = (y1+y2)/2;
+      float x23 = (x2+x3)/2;
+      float y23 = (y2+y3)/2;
+
+      float xa = (x01+x12)/2;
+      float ya = (y01+y12)/2;
+      float xb = (x12+x23)/2;
+      float yb = (y12+y23)/2;
+
+      float mx = (xa+xb)/2;
+      float my = (ya+yb)/2;
+
+      stbtt__tesselate_cubic(points, num_points, x0,y0, x01,y01, xa,ya, mx,my, objspace_flatness_squared,n+1);
+      stbtt__tesselate_cubic(points, num_points, mx,my, xb,yb, x23,y23, x3,y3, objspace_flatness_squared,n+1);
+   } else {
+      stbtt__add_point(points, *num_points,x3,y3);
+      *num_points = *num_points+1;
+   }
+}
+
+// returns number of contours
+static stbtt__point *stbtt_FlattenCurves(stbtt_vertex *vertices, int num_verts, float objspace_flatness, int **contour_lengths, int *num_contours, void *userdata)
+{
+   stbtt__point *points=0;
+   int num_points=0;
+
+   float objspace_flatness_squared = objspace_flatness * objspace_flatness;
+   int i,n=0,start=0, pass;
+
+   // count how many "moves" there are to get the contour count
+   for (i=0; i < num_verts; ++i)
+      if (vertices[i].type == STBTT_vmove)
+         ++n;
+
+   *num_contours = n;
+   if (n == 0) return 0;
+
+   *contour_lengths = (int *) STBTT_malloc(sizeof(**contour_lengths) * n, userdata);
+
+   if (*contour_lengths == 0) {
+      *num_contours = 0;
+      return 0;
+   }
+
+   // make two passes through the points so we don't need to realloc
+   for (pass=0; pass < 2; ++pass) {
+      float x=0,y=0;
+      if (pass == 1) {
+         points = (stbtt__point *) STBTT_malloc(num_points * sizeof(points[0]), userdata);
+         if (points == NULL) goto error;
+      }
+      num_points = 0;
+      n= -1;
+      for (i=0; i < num_verts; ++i) {
+         switch (vertices[i].type) {
+            case STBTT_vmove:
+               // start the next contour
+               if (n >= 0)
+                  (*contour_lengths)[n] = num_points - start;
+               ++n;
+               start = num_points;
+
+               x = vertices[i].x, y = vertices[i].y;
+               stbtt__add_point(points, num_points++, x,y);
+               break;
+            case STBTT_vline:
+               x = vertices[i].x, y = vertices[i].y;
+               stbtt__add_point(points, num_points++, x, y);
+               break;
+            case STBTT_vcurve:
+               stbtt__tesselate_curve(points, &num_points, x,y,
+                                        vertices[i].cx, vertices[i].cy,
+                                        vertices[i].x,  vertices[i].y,
+                                        objspace_flatness_squared, 0);
+               x = vertices[i].x, y = vertices[i].y;
+               break;
+            case STBTT_vcubic:
+               stbtt__tesselate_cubic(points, &num_points, x,y,
+                                        vertices[i].cx, vertices[i].cy,
+                                        vertices[i].cx1, vertices[i].cy1,
+                                        vertices[i].x,  vertices[i].y,
+                                        objspace_flatness_squared, 0);
+               x = vertices[i].x, y = vertices[i].y;
+               break;
+         }
+      }
+      (*contour_lengths)[n] = num_points - start;
+   }
+
+   return points;
+error:
+   STBTT_free(points, userdata);
+   STBTT_free(*contour_lengths, userdata);
+   *contour_lengths = 0;
+   *num_contours = 0;
+   return NULL;
+}
+
+STBTT_DEF void stbtt_Rasterize(stbtt__bitmap *result, float flatness_in_pixels, stbtt_vertex *vertices, int num_verts, float scale_x, float scale_y, float shift_x, float shift_y, int x_off, int y_off, int invert, void *userdata)
+{
+   float scale            = scale_x > scale_y ? scale_y : scale_x;
+   int winding_count      = 0;
+   int *winding_lengths   = NULL;
+   stbtt__point *windings = stbtt_FlattenCurves(vertices, num_verts, flatness_in_pixels / scale, &winding_lengths, &winding_count, userdata);
+   if (windings) {
+      stbtt__rasterize(result, windings, winding_lengths, winding_count, scale_x, scale_y, shift_x, shift_y, x_off, y_off, invert, userdata);
+      STBTT_free(winding_lengths, userdata);
+      STBTT_free(windings, userdata);
+   }
+}
+
+STBTT_DEF void stbtt_FreeBitmap(unsigned char *bitmap, void *userdata)
+{
+   STBTT_free(bitmap, userdata);
+}
+
+STBTT_DEF unsigned char *stbtt_GetGlyphBitmapSubpixel(const stbtt_fontinfo *info, float scale_x, float scale_y, float shift_x, float shift_y, int glyph, int *width, int *height, int *xoff, int *yoff)
+{
+   int ix0,iy0,ix1,iy1;
+   stbtt__bitmap gbm;
+   stbtt_vertex *vertices;
+   int num_verts = stbtt_GetGlyphShape(info, glyph, &vertices);
+
+   if (scale_x == 0) scale_x = scale_y;
+   if (scale_y == 0) {
+      if (scale_x == 0) {
+         STBTT_free(vertices, info->userdata);
+         return NULL;
+      }
+      scale_y = scale_x;
+   }
+
+   stbtt_GetGlyphBitmapBoxSubpixel(info, glyph, scale_x, scale_y, shift_x, shift_y, &ix0,&iy0,&ix1,&iy1);
+
+   // now we get the size
+   gbm.w = (ix1 - ix0);
+   gbm.h = (iy1 - iy0);
+   gbm.pixels = NULL; // in case we error
+
+   if (width ) *width  = gbm.w;
+   if (height) *height = gbm.h;
+   if (xoff  ) *xoff   = ix0;
+   if (yoff  ) *yoff   = iy0;
+
+   if (gbm.w && gbm.h) {
+      gbm.pixels = (unsigned char *) STBTT_malloc(gbm.w * gbm.h, info->userdata);
+      if (gbm.pixels) {
+         gbm.stride = gbm.w;
+
+         stbtt_Rasterize(&gbm, 0.35f, vertices, num_verts, scale_x, scale_y, shift_x, shift_y, ix0, iy0, 1, info->userdata);
+      }
+   }
+   STBTT_free(vertices, info->userdata);
+   return gbm.pixels;
+}
+
+STBTT_DEF unsigned char *stbtt_GetGlyphBitmap(const stbtt_fontinfo *info, float scale_x, float scale_y, int glyph, int *width, int *height, int *xoff, int *yoff)
+{
+   return stbtt_GetGlyphBitmapSubpixel(info, scale_x, scale_y, 0.0f, 0.0f, glyph, width, height, xoff, yoff);
+}
+
+STBTT_DEF void stbtt_MakeGlyphBitmapSubpixel(const stbtt_fontinfo *info, unsigned char *output, int out_w, int out_h, int out_stride, float scale_x, float scale_y, float shift_x, float shift_y, int glyph)
+{
+   int ix0,iy0;
+   stbtt_vertex *vertices;
+   int num_verts = stbtt_GetGlyphShape(info, glyph, &vertices);
+   stbtt__bitmap gbm;
+
+   stbtt_GetGlyphBitmapBoxSubpixel(info, glyph, scale_x, scale_y, shift_x, shift_y, &ix0,&iy0,0,0);
+   gbm.pixels = output;
+   gbm.w = out_w;
+   gbm.h = out_h;
+   gbm.stride = out_stride;
+
+   if (gbm.w && gbm.h)
+      stbtt_Rasterize(&gbm, 0.35f, vertices, num_verts, scale_x, scale_y, shift_x, shift_y, ix0,iy0, 1, info->userdata);
+
+   STBTT_free(vertices, info->userdata);
+}
+
+STBTT_DEF void stbtt_MakeGlyphBitmap(const stbtt_fontinfo *info, unsigned char *output, int out_w, int out_h, int out_stride, float scale_x, float scale_y, int glyph)
+{
+   stbtt_MakeGlyphBitmapSubpixel(info, output, out_w, out_h, out_stride, scale_x, scale_y, 0.0f,0.0f, glyph);
+}
+
+STBTT_DEF unsigned char *stbtt_GetCodepointBitmapSubpixel(const stbtt_fontinfo *info, float scale_x, float scale_y, float shift_x, float shift_y, int codepoint, int *width, int *height, int *xoff, int *yoff)
+{
+   return stbtt_GetGlyphBitmapSubpixel(info, scale_x, scale_y,shift_x,shift_y, stbtt_FindGlyphIndex(info,codepoint), width,height,xoff,yoff);
+}
+
+STBTT_DEF void stbtt_MakeCodepointBitmapSubpixelPrefilter(const stbtt_fontinfo *info, unsigned char *output, int out_w, int out_h, int out_stride, float scale_x, float scale_y, float shift_x, float shift_y, int oversample_x, int oversample_y, float *sub_x, float *sub_y, int codepoint)
+{
+   stbtt_MakeGlyphBitmapSubpixelPrefilter(info, output, out_w, out_h, out_stride, scale_x, scale_y, shift_x, shift_y, oversample_x, oversample_y, sub_x, sub_y, stbtt_FindGlyphIndex(info,codepoint));
+}
+
+STBTT_DEF void stbtt_MakeCodepointBitmapSubpixel(const stbtt_fontinfo *info, unsigned char *output, int out_w, int out_h, int out_stride, float scale_x, float scale_y, float shift_x, float shift_y, int codepoint)
+{
+   stbtt_MakeGlyphBitmapSubpixel(info, output, out_w, out_h, out_stride, scale_x, scale_y, shift_x, shift_y, stbtt_FindGlyphIndex(info,codepoint));
+}
+
+STBTT_DEF unsigned char *stbtt_GetCodepointBitmap(const stbtt_fontinfo *info, float scale_x, float scale_y, int codepoint, int *width, int *height, int *xoff, int *yoff)
+{
+   return stbtt_GetCodepointBitmapSubpixel(info, scale_x, scale_y, 0.0f,0.0f, codepoint, width,height,xoff,yoff);
+}
+
+STBTT_DEF void stbtt_MakeCodepointBitmap(const stbtt_fontinfo *info, unsigned char *output, int out_w, int out_h, int out_stride, float scale_x, float scale_y, int codepoint)
+{
+   stbtt_MakeCodepointBitmapSubpixel(info, output, out_w, out_h, out_stride, scale_x, scale_y, 0.0f,0.0f, codepoint);
+}
+
+//////////////////////////////////////////////////////////////////////////////
+//
+// bitmap baking
+//
+// This is SUPER-CRAPPY packing to keep source code small
+
+static int stbtt_BakeFontBitmap_internal(unsigned char *data, int offset,  // font location (use offset=0 for plain .ttf)
+                                float pixel_height,                     // height of font in pixels
+                                unsigned char *pixels, int pw, int ph,  // bitmap to be filled in
+                                int first_char, int num_chars,          // characters to bake
+                                stbtt_bakedchar *chardata)
+{
+   float scale;
+   int x,y,bottom_y, i;
+   stbtt_fontinfo f;
+   f.userdata = NULL;
+   if (!stbtt_InitFont(&f, data, offset))
+      return -1;
+   STBTT_memset(pixels, 0, pw*ph); // background of 0 around pixels
+   x=y=1;
+   bottom_y = 1;
+
+   scale = stbtt_ScaleForPixelHeight(&f, pixel_height);
+
+   for (i=0; i < num_chars; ++i) {
+      int advance, lsb, x0,y0,x1,y1,gw,gh;
+      int g = stbtt_FindGlyphIndex(&f, first_char + i);
+      stbtt_GetGlyphHMetrics(&f, g, &advance, &lsb);
+      stbtt_GetGlyphBitmapBox(&f, g, scale,scale, &x0,&y0,&x1,&y1);
+      gw = x1-x0;
+      gh = y1-y0;
+      if (x + gw + 1 >= pw)
+         y = bottom_y, x = 1; // advance to next row
+      if (y + gh + 1 >= ph) // check if it fits vertically AFTER potentially moving to next row
+         return -i;
+      STBTT_assert(x+gw < pw);
+      STBTT_assert(y+gh < ph);
+      stbtt_MakeGlyphBitmap(&f, pixels+x+y*pw, gw,gh,pw, scale,scale, g);
+      chardata[i].x0 = (stbtt_int16) x;
+      chardata[i].y0 = (stbtt_int16) y;
+      chardata[i].x1 = (stbtt_int16) (x + gw);
+      chardata[i].y1 = (stbtt_int16) (y + gh);
+      chardata[i].xadvance = scale * advance;
+      chardata[i].xoff     = (float) x0;
+      chardata[i].yoff     = (float) y0;
+      x = x + gw + 1;
+      if (y+gh+1 > bottom_y)
+         bottom_y = y+gh+1;
+   }
+   return bottom_y;
+}
+
+STBTT_DEF void stbtt_GetBakedQuad(const stbtt_bakedchar *chardata, int pw, int ph, int char_index, float *xpos, float *ypos, stbtt_aligned_quad *q, int opengl_fillrule)
+{
+   float d3d_bias = opengl_fillrule ? 0 : -0.5f;
+   float ipw = 1.0f / pw, iph = 1.0f / ph;
+   const stbtt_bakedchar *b = chardata + char_index;
+   int round_x = STBTT_ifloor((*xpos + b->xoff) + 0.5f);
+   int round_y = STBTT_ifloor((*ypos + b->yoff) + 0.5f);
+
+   q->x0 = round_x + d3d_bias;
+   q->y0 = round_y + d3d_bias;
+   q->x1 = round_x + b->x1 - b->x0 + d3d_bias;
+   q->y1 = round_y + b->y1 - b->y0 + d3d_bias;
+
+   q->s0 = b->x0 * ipw;
+   q->t0 = b->y0 * iph;
+   q->s1 = b->x1 * ipw;
+   q->t1 = b->y1 * iph;
+
+   *xpos += b->xadvance;
+}
+
+//////////////////////////////////////////////////////////////////////////////
+//
+// rectangle packing replacement routines if you don't have stb_rect_pack.h
+//
+
+#ifndef STB_RECT_PACK_VERSION
+
+typedef int stbrp_coord;
+
+////////////////////////////////////////////////////////////////////////////////////
+//                                                                                //
+//                                                                                //
+// COMPILER WARNING ?!?!?                                                         //
+//                                                                                //
+//                                                                                //
+// if you get a compile warning due to these symbols being defined more than      //
+// once, move #include "stb_rect_pack.h" before #include "stb_truetype.h"         //
+//                                                                                //
+////////////////////////////////////////////////////////////////////////////////////
+
+typedef struct
+{
+   int width,height;
+   int x,y,bottom_y;
+} stbrp_context;
+
+typedef struct
+{
+   unsigned char x;
+} stbrp_node;
+
+struct stbrp_rect
+{
+   stbrp_coord x,y;
+   int id,w,h,was_packed;
+};
+
+static void stbrp_init_target(stbrp_context *con, int pw, int ph, stbrp_node *nodes, int num_nodes)
+{
+   con->width  = pw;
+   con->height = ph;
+   con->x = 0;
+   con->y = 0;
+   con->bottom_y = 0;
+   STBTT__NOTUSED(nodes);
+   STBTT__NOTUSED(num_nodes);
+}
+
+static void stbrp_pack_rects(stbrp_context *con, stbrp_rect *rects, int num_rects)
+{
+   int i;
+   for (i=0; i < num_rects; ++i) {
+      if (con->x + rects[i].w > con->width) {
+         con->x = 0;
+         con->y = con->bottom_y;
+      }
+      if (con->y + rects[i].h > con->height)
+         break;
+      rects[i].x = con->x;
+      rects[i].y = con->y;
+      rects[i].was_packed = 1;
+      con->x += rects[i].w;
+      if (con->y + rects[i].h > con->bottom_y)
+         con->bottom_y = con->y + rects[i].h;
+   }
+   for (   ; i < num_rects; ++i)
+      rects[i].was_packed = 0;
+}
+#endif
+
+//////////////////////////////////////////////////////////////////////////////
+//
+// bitmap baking
+//
+// This is SUPER-AWESOME (tm Ryan Gordon) packing using stb_rect_pack.h. If
+// stb_rect_pack.h isn't available, it uses the BakeFontBitmap strategy.
+
+STBTT_DEF int stbtt_PackBegin(stbtt_pack_context *spc, unsigned char *pixels, int pw, int ph, int stride_in_bytes, int padding, void *alloc_context)
+{
+   stbrp_context *context = (stbrp_context *) STBTT_malloc(sizeof(*context)            ,alloc_context);
+   int            num_nodes = pw - padding;
+   stbrp_node    *nodes   = (stbrp_node    *) STBTT_malloc(sizeof(*nodes  ) * num_nodes,alloc_context);
+
+   if (context == NULL || nodes == NULL) {
+      if (context != NULL) STBTT_free(context, alloc_context);
+      if (nodes   != NULL) STBTT_free(nodes  , alloc_context);
+      return 0;
+   }
+
+   spc->user_allocator_context = alloc_context;
+   spc->width = pw;
+   spc->height = ph;
+   spc->pixels = pixels;
+   spc->pack_info = context;
+   spc->nodes = nodes;
+   spc->padding = padding;
+   spc->stride_in_bytes = stride_in_bytes != 0 ? stride_in_bytes : pw;
+   spc->h_oversample = 1;
+   spc->v_oversample = 1;
+   spc->skip_missing = 0;
+
+   stbrp_init_target(context, pw-padding, ph-padding, nodes, num_nodes);
+
+   if (pixels)
+      STBTT_memset(pixels, 0, pw*ph); // background of 0 around pixels
+
+   return 1;
+}
+
+STBTT_DEF void stbtt_PackEnd  (stbtt_pack_context *spc)
+{
+   STBTT_free(spc->nodes    , spc->user_allocator_context);
+   STBTT_free(spc->pack_info, spc->user_allocator_context);
+}
+
+STBTT_DEF void stbtt_PackSetOversampling(stbtt_pack_context *spc, unsigned int h_oversample, unsigned int v_oversample)
+{
+   STBTT_assert(h_oversample <= STBTT_MAX_OVERSAMPLE);
+   STBTT_assert(v_oversample <= STBTT_MAX_OVERSAMPLE);
+   if (h_oversample <= STBTT_MAX_OVERSAMPLE)
+      spc->h_oversample = h_oversample;
+   if (v_oversample <= STBTT_MAX_OVERSAMPLE)
+      spc->v_oversample = v_oversample;
+}
+
+STBTT_DEF void stbtt_PackSetSkipMissingCodepoints(stbtt_pack_context *spc, int skip)
+{
+   spc->skip_missing = skip;
+}
+
+#define STBTT__OVER_MASK  (STBTT_MAX_OVERSAMPLE-1)
+
+static void stbtt__h_prefilter(unsigned char *pixels, int w, int h, int stride_in_bytes, unsigned int kernel_width)
+{
+   unsigned char buffer[STBTT_MAX_OVERSAMPLE];
+   int safe_w = w - kernel_width;
+   int j;
+   STBTT_memset(buffer, 0, STBTT_MAX_OVERSAMPLE); // suppress bogus warning from VS2013 -analyze
+   for (j=0; j < h; ++j) {
+      int i;
+      unsigned int total;
+      STBTT_memset(buffer, 0, kernel_width);
+
+      total = 0;
+
+      // make kernel_width a constant in common cases so compiler can optimize out the divide
+      switch (kernel_width) {
+         case 2:
+            for (i=0; i <= safe_w; ++i) {
+               total += pixels[i] - buffer[i & STBTT__OVER_MASK];
+               buffer[(i+kernel_width) & STBTT__OVER_MASK] = pixels[i];
+               pixels[i] = (unsigned char) (total / 2);
+            }
+            break;
+         case 3:
+            for (i=0; i <= safe_w; ++i) {
+               total += pixels[i] - buffer[i & STBTT__OVER_MASK];
+               buffer[(i+kernel_width) & STBTT__OVER_MASK] = pixels[i];
+               pixels[i] = (unsigned char) (total / 3);
+            }
+            break;
+         case 4:
+            for (i=0; i <= safe_w; ++i) {
+               total += pixels[i] - buffer[i & STBTT__OVER_MASK];
+               buffer[(i+kernel_width) & STBTT__OVER_MASK] = pixels[i];
+               pixels[i] = (unsigned char) (total / 4);
+            }
+            break;
+         case 5:
+            for (i=0; i <= safe_w; ++i) {
+               total += pixels[i] - buffer[i & STBTT__OVER_MASK];
+               buffer[(i+kernel_width) & STBTT__OVER_MASK] = pixels[i];
+               pixels[i] = (unsigned char) (total / 5);
+            }
+            break;
+         default:
+            for (i=0; i <= safe_w; ++i) {
+               total += pixels[i] - buffer[i & STBTT__OVER_MASK];
+               buffer[(i+kernel_width) & STBTT__OVER_MASK] = pixels[i];
+               pixels[i] = (unsigned char) (total / kernel_width);
+            }
+            break;
+      }
+
+      for (; i < w; ++i) {
+         STBTT_assert(pixels[i] == 0);
+         total -= buffer[i & STBTT__OVER_MASK];
+         pixels[i] = (unsigned char) (total / kernel_width);
+      }
+
+      pixels += stride_in_bytes;
+   }
+}
+
+static void stbtt__v_prefilter(unsigned char *pixels, int w, int h, int stride_in_bytes, unsigned int kernel_width)
+{
+   unsigned char buffer[STBTT_MAX_OVERSAMPLE];
+   int safe_h = h - kernel_width;
+   int j;
+   STBTT_memset(buffer, 0, STBTT_MAX_OVERSAMPLE); // suppress bogus warning from VS2013 -analyze
+   for (j=0; j < w; ++j) {
+      int i;
+      unsigned int total;
+      STBTT_memset(buffer, 0, kernel_width);
+
+      total = 0;
+
+      // make kernel_width a constant in common cases so compiler can optimize out the divide
+      switch (kernel_width) {
+         case 2:
+            for (i=0; i <= safe_h; ++i) {
+               total += pixels[i*stride_in_bytes] - buffer[i & STBTT__OVER_MASK];
+               buffer[(i+kernel_width) & STBTT__OVER_MASK] = pixels[i*stride_in_bytes];
+               pixels[i*stride_in_bytes] = (unsigned char) (total / 2);
+            }
+            break;
+         case 3:
+            for (i=0; i <= safe_h; ++i) {
+               total += pixels[i*stride_in_bytes] - buffer[i & STBTT__OVER_MASK];
+               buffer[(i+kernel_width) & STBTT__OVER_MASK] = pixels[i*stride_in_bytes];
+               pixels[i*stride_in_bytes] = (unsigned char) (total / 3);
+            }
+            break;
+         case 4:
+            for (i=0; i <= safe_h; ++i) {
+               total += pixels[i*stride_in_bytes] - buffer[i & STBTT__OVER_MASK];
+               buffer[(i+kernel_width) & STBTT__OVER_MASK] = pixels[i*stride_in_bytes];
+               pixels[i*stride_in_bytes] = (unsigned char) (total / 4);
+            }
+            break;
+         case 5:
+            for (i=0; i <= safe_h; ++i) {
+               total += pixels[i*stride_in_bytes] - buffer[i & STBTT__OVER_MASK];
+               buffer[(i+kernel_width) & STBTT__OVER_MASK] = pixels[i*stride_in_bytes];
+               pixels[i*stride_in_bytes] = (unsigned char) (total / 5);
+            }
+            break;
+         default:
+            for (i=0; i <= safe_h; ++i) {
+               total += pixels[i*stride_in_bytes] - buffer[i & STBTT__OVER_MASK];
+               buffer[(i+kernel_width) & STBTT__OVER_MASK] = pixels[i*stride_in_bytes];
+               pixels[i*stride_in_bytes] = (unsigned char) (total / kernel_width);
+            }
+            break;
+      }
+
+      for (; i < h; ++i) {
+         STBTT_assert(pixels[i*stride_in_bytes] == 0);
+         total -= buffer[i & STBTT__OVER_MASK];
+         pixels[i*stride_in_bytes] = (unsigned char) (total / kernel_width);
+      }
+
+      pixels += 1;
+   }
+}
+
+static float stbtt__oversample_shift(int oversample)
+{
+   if (!oversample)
+      return 0.0f;
+
+   // The prefilter is a box filter of width "oversample",
+   // which shifts phase by (oversample - 1)/2 pixels in
+   // oversampled space. We want to shift in the opposite
+   // direction to counter this.
+   return (float)-(oversample - 1) / (2.0f * (float)oversample);
+}
+
+// rects array must be big enough to accommodate all characters in the given ranges
+STBTT_DEF int stbtt_PackFontRangesGatherRects(stbtt_pack_context *spc, const stbtt_fontinfo *info, stbtt_pack_range *ranges, int num_ranges, stbrp_rect *rects)
+{
+   int i,j,k;
+   int missing_glyph_added = 0;
+
+   k=0;
+   for (i=0; i < num_ranges; ++i) {
+      float fh = ranges[i].font_size;
+      float scale = fh > 0 ? stbtt_ScaleForPixelHeight(info, fh) : stbtt_ScaleForMappingEmToPixels(info, -fh);
+      ranges[i].h_oversample = (unsigned char) spc->h_oversample;
+      ranges[i].v_oversample = (unsigned char) spc->v_oversample;
+      for (j=0; j < ranges[i].num_chars; ++j) {
+         int x0,y0,x1,y1;
+         int codepoint = ranges[i].array_of_unicode_codepoints == NULL ? ranges[i].first_unicode_codepoint_in_range + j : ranges[i].array_of_unicode_codepoints[j];
+         int glyph = stbtt_FindGlyphIndex(info, codepoint);
+         if (glyph == 0 && (spc->skip_missing || missing_glyph_added)) {
+            rects[k].w = rects[k].h = 0;
+         } else {
+            stbtt_GetGlyphBitmapBoxSubpixel(info,glyph,
+                                            scale * spc->h_oversample,
+                                            scale * spc->v_oversample,
+                                            0,0,
+                                            &x0,&y0,&x1,&y1);
+            rects[k].w = (stbrp_coord) (x1-x0 + spc->padding + spc->h_oversample-1);
+            rects[k].h = (stbrp_coord) (y1-y0 + spc->padding + spc->v_oversample-1);
+            if (glyph == 0)
+               missing_glyph_added = 1;
+         }
+         ++k;
+      }
+   }
+
+   return k;
+}
+
+STBTT_DEF void stbtt_MakeGlyphBitmapSubpixelPrefilter(const stbtt_fontinfo *info, unsigned char *output, int out_w, int out_h, int out_stride, float scale_x, float scale_y, float shift_x, float shift_y, int prefilter_x, int prefilter_y, float *sub_x, float *sub_y, int glyph)
+{
+   stbtt_MakeGlyphBitmapSubpixel(info,
+                                 output,
+                                 out_w - (prefilter_x - 1),
+                                 out_h - (prefilter_y - 1),
+                                 out_stride,
+                                 scale_x,
+                                 scale_y,
+                                 shift_x,
+                                 shift_y,
+                                 glyph);
+
+   if (prefilter_x > 1)
+      stbtt__h_prefilter(output, out_w, out_h, out_stride, prefilter_x);
+
+   if (prefilter_y > 1)
+      stbtt__v_prefilter(output, out_w, out_h, out_stride, prefilter_y);
+
+   *sub_x = stbtt__oversample_shift(prefilter_x);
+   *sub_y = stbtt__oversample_shift(prefilter_y);
+}
+
+// rects array must be big enough to accommodate all characters in the given ranges
+STBTT_DEF int stbtt_PackFontRangesRenderIntoRects(stbtt_pack_context *spc, const stbtt_fontinfo *info, stbtt_pack_range *ranges, int num_ranges, stbrp_rect *rects)
+{
+   int i,j,k, missing_glyph = -1, return_value = 1;
+
+   // save current values
+   int old_h_over = spc->h_oversample;
+   int old_v_over = spc->v_oversample;
+
+   k = 0;
+   for (i=0; i < num_ranges; ++i) {
+      float fh = ranges[i].font_size;
+      float scale = fh > 0 ? stbtt_ScaleForPixelHeight(info, fh) : stbtt_ScaleForMappingEmToPixels(info, -fh);
+      float recip_h,recip_v,sub_x,sub_y;
+      spc->h_oversample = ranges[i].h_oversample;
+      spc->v_oversample = ranges[i].v_oversample;
+      recip_h = 1.0f / spc->h_oversample;
+      recip_v = 1.0f / spc->v_oversample;
+      sub_x = stbtt__oversample_shift(spc->h_oversample);
+      sub_y = stbtt__oversample_shift(spc->v_oversample);
+      for (j=0; j < ranges[i].num_chars; ++j) {
+         stbrp_rect *r = &rects[k];
+         if (r->was_packed && r->w != 0 && r->h != 0) {
+            stbtt_packedchar *bc = &ranges[i].chardata_for_range[j];
+            int advance, lsb, x0,y0,x1,y1;
+            int codepoint = ranges[i].array_of_unicode_codepoints == NULL ? ranges[i].first_unicode_codepoint_in_range + j : ranges[i].array_of_unicode_codepoints[j];
+            int glyph = stbtt_FindGlyphIndex(info, codepoint);
+            stbrp_coord pad = (stbrp_coord) spc->padding;
+
+            // pad on left and top
+            r->x += pad;
+            r->y += pad;
+            r->w -= pad;
+            r->h -= pad;
+            stbtt_GetGlyphHMetrics(info, glyph, &advance, &lsb);
+            stbtt_GetGlyphBitmapBox(info, glyph,
+                                    scale * spc->h_oversample,
+                                    scale * spc->v_oversample,
+                                    &x0,&y0,&x1,&y1);
+            stbtt_MakeGlyphBitmapSubpixel(info,
+                                          spc->pixels + r->x + r->y*spc->stride_in_bytes,
+                                          r->w - spc->h_oversample+1,
+                                          r->h - spc->v_oversample+1,
+                                          spc->stride_in_bytes,
+                                          scale * spc->h_oversample,
+                                          scale * spc->v_oversample,
+                                          0,0,
+                                          glyph);
+
+            if (spc->h_oversample > 1)
+               stbtt__h_prefilter(spc->pixels + r->x + r->y*spc->stride_in_bytes,
+                                  r->w, r->h, spc->stride_in_bytes,
+                                  spc->h_oversample);
+
+            if (spc->v_oversample > 1)
+               stbtt__v_prefilter(spc->pixels + r->x + r->y*spc->stride_in_bytes,
+                                  r->w, r->h, spc->stride_in_bytes,
+                                  spc->v_oversample);
+
+            bc->x0       = (stbtt_int16)  r->x;
+            bc->y0       = (stbtt_int16)  r->y;
+            bc->x1       = (stbtt_int16) (r->x + r->w);
+            bc->y1       = (stbtt_int16) (r->y + r->h);
+            bc->xadvance =                scale * advance;
+            bc->xoff     =       (float)  x0 * recip_h + sub_x;
+            bc->yoff     =       (float)  y0 * recip_v + sub_y;
+            bc->xoff2    =                (x0 + r->w) * recip_h + sub_x;
+            bc->yoff2    =                (y0 + r->h) * recip_v + sub_y;
+
+            if (glyph == 0)
+               missing_glyph = j;
+         } else if (spc->skip_missing) {
+            return_value = 0;
+         } else if (r->was_packed && r->w == 0 && r->h == 0 && missing_glyph >= 0) {
+            ranges[i].chardata_for_range[j] = ranges[i].chardata_for_range[missing_glyph];
+         } else {
+            return_value = 0; // if any fail, report failure
+         }
+
+         ++k;
+      }
+   }
+
+   // restore original values
+   spc->h_oversample = old_h_over;
+   spc->v_oversample = old_v_over;
+
+   return return_value;
+}
+
+STBTT_DEF void stbtt_PackFontRangesPackRects(stbtt_pack_context *spc, stbrp_rect *rects, int num_rects)
+{
+   stbrp_pack_rects((stbrp_context *) spc->pack_info, rects, num_rects);
+}
+
+STBTT_DEF int stbtt_PackFontRanges(stbtt_pack_context *spc, const unsigned char *fontdata, int font_index, stbtt_pack_range *ranges, int num_ranges)
+{
+   stbtt_fontinfo info;
+   int i, j, n, return_value; // [DEAR IMGUI] removed = 1;
+   //stbrp_context *context = (stbrp_context *) spc->pack_info;
+   stbrp_rect    *rects;
+
+   // flag all characters as NOT packed
+   for (i=0; i < num_ranges; ++i)
+      for (j=0; j < ranges[i].num_chars; ++j)
+         ranges[i].chardata_for_range[j].x0 =
+         ranges[i].chardata_for_range[j].y0 =
+         ranges[i].chardata_for_range[j].x1 =
+         ranges[i].chardata_for_range[j].y1 = 0;
+
+   n = 0;
+   for (i=0; i < num_ranges; ++i)
+      n += ranges[i].num_chars;
+
+   rects = (stbrp_rect *) STBTT_malloc(sizeof(*rects) * n, spc->user_allocator_context);
+   if (rects == NULL)
+      return 0;
+
+   info.userdata = spc->user_allocator_context;
+   stbtt_InitFont(&info, fontdata, stbtt_GetFontOffsetForIndex(fontdata,font_index));
+
+   n = stbtt_PackFontRangesGatherRects(spc, &info, ranges, num_ranges, rects);
+
+   stbtt_PackFontRangesPackRects(spc, rects, n);
+
+   return_value = stbtt_PackFontRangesRenderIntoRects(spc, &info, ranges, num_ranges, rects);
+
+   STBTT_free(rects, spc->user_allocator_context);
+   return return_value;
+}
+
+STBTT_DEF int stbtt_PackFontRange(stbtt_pack_context *spc, const unsigned char *fontdata, int font_index, float font_size,
+            int first_unicode_codepoint_in_range, int num_chars_in_range, stbtt_packedchar *chardata_for_range)
+{
+   stbtt_pack_range range;
+   range.first_unicode_codepoint_in_range = first_unicode_codepoint_in_range;
+   range.array_of_unicode_codepoints = NULL;
+   range.num_chars                   = num_chars_in_range;
+   range.chardata_for_range          = chardata_for_range;
+   range.font_size                   = font_size;
+   return stbtt_PackFontRanges(spc, fontdata, font_index, &range, 1);
+}
+
+STBTT_DEF void stbtt_GetScaledFontVMetrics(const unsigned char *fontdata, int index, float size, float *ascent, float *descent, float *lineGap)
+{
+   int i_ascent, i_descent, i_lineGap;
+   float scale;
+   stbtt_fontinfo info;
+   stbtt_InitFont(&info, fontdata, stbtt_GetFontOffsetForIndex(fontdata, index));
+   scale = size > 0 ? stbtt_ScaleForPixelHeight(&info, size) : stbtt_ScaleForMappingEmToPixels(&info, -size);
+   stbtt_GetFontVMetrics(&info, &i_ascent, &i_descent, &i_lineGap);
+   *ascent  = (float) i_ascent  * scale;
+   *descent = (float) i_descent * scale;
+   *lineGap = (float) i_lineGap * scale;
+}
+
+STBTT_DEF void stbtt_GetPackedQuad(const stbtt_packedchar *chardata, int pw, int ph, int char_index, float *xpos, float *ypos, stbtt_aligned_quad *q, int align_to_integer)
+{
+   float ipw = 1.0f / pw, iph = 1.0f / ph;
+   const stbtt_packedchar *b = chardata + char_index;
+
+   if (align_to_integer) {
+      float x = (float) STBTT_ifloor((*xpos + b->xoff) + 0.5f);
+      float y = (float) STBTT_ifloor((*ypos + b->yoff) + 0.5f);
+      q->x0 = x;
+      q->y0 = y;
+      q->x1 = x + b->xoff2 - b->xoff;
+      q->y1 = y + b->yoff2 - b->yoff;
+   } else {
+      q->x0 = *xpos + b->xoff;
+      q->y0 = *ypos + b->yoff;
+      q->x1 = *xpos + b->xoff2;
+      q->y1 = *ypos + b->yoff2;
+   }
+
+   q->s0 = b->x0 * ipw;
+   q->t0 = b->y0 * iph;
+   q->s1 = b->x1 * ipw;
+   q->t1 = b->y1 * iph;
+
+   *xpos += b->xadvance;
+}
+
+//////////////////////////////////////////////////////////////////////////////
+//
+// sdf computation
+//
+
+#define STBTT_min(a,b)  ((a) < (b) ? (a) : (b))
+#define STBTT_max(a,b)  ((a) < (b) ? (b) : (a))
+
+static int stbtt__ray_intersect_bezier(float orig[2], float ray[2], float q0[2], float q1[2], float q2[2], float hits[2][2])
+{
+   float q0perp = q0[1]*ray[0] - q0[0]*ray[1];
+   float q1perp = q1[1]*ray[0] - q1[0]*ray[1];
+   float q2perp = q2[1]*ray[0] - q2[0]*ray[1];
+   float roperp = orig[1]*ray[0] - orig[0]*ray[1];
+
+   float a = q0perp - 2*q1perp + q2perp;
+   float b = q1perp - q0perp;
+   float c = q0perp - roperp;
+
+   float s0 = 0., s1 = 0.;
+   int num_s = 0;
+
+   if (a != 0.0) {
+      float discr = b*b - a*c;
+      if (discr > 0.0) {
+         float rcpna = -1 / a;
+         float d = (float) STBTT_sqrt(discr);
+         s0 = (b+d) * rcpna;
+         s1 = (b-d) * rcpna;
+         if (s0 >= 0.0 && s0 <= 1.0)
+            num_s = 1;
+         if (d > 0.0 && s1 >= 0.0 && s1 <= 1.0) {
+            if (num_s == 0) s0 = s1;
+            ++num_s;
+         }
+      }
+   } else {
+      // 2*b*s + c = 0
+      // s = -c / (2*b)
+      s0 = c / (-2 * b);
+      if (s0 >= 0.0 && s0 <= 1.0)
+         num_s = 1;
+   }
+
+   if (num_s == 0)
+      return 0;
+   else {
+      float rcp_len2 = 1 / (ray[0]*ray[0] + ray[1]*ray[1]);
+      float rayn_x = ray[0] * rcp_len2, rayn_y = ray[1] * rcp_len2;
+
+      float q0d =   q0[0]*rayn_x +   q0[1]*rayn_y;
+      float q1d =   q1[0]*rayn_x +   q1[1]*rayn_y;
+      float q2d =   q2[0]*rayn_x +   q2[1]*rayn_y;
+      float rod = orig[0]*rayn_x + orig[1]*rayn_y;
+
+      float q10d = q1d - q0d;
+      float q20d = q2d - q0d;
+      float q0rd = q0d - rod;
+
+      hits[0][0] = q0rd + s0*(2.0f - 2.0f*s0)*q10d + s0*s0*q20d;
+      hits[0][1] = a*s0+b;
+
+      if (num_s > 1) {
+         hits[1][0] = q0rd + s1*(2.0f - 2.0f*s1)*q10d + s1*s1*q20d;
+         hits[1][1] = a*s1+b;
+         return 2;
+      } else {
+         return 1;
+      }
+   }
+}
+
+static int equal(float *a, float *b)
+{
+   return (a[0] == b[0] && a[1] == b[1]);
+}
+
+static int stbtt__compute_crossings_x(float x, float y, int nverts, stbtt_vertex *verts)
+{
+   int i;
+   float orig[2], ray[2] = { 1, 0 };
+   float y_frac;
+   int winding = 0;
+
+   // make sure y never passes through a vertex of the shape
+   y_frac = (float) STBTT_fmod(y, 1.0f);
+   if (y_frac < 0.01f)
+      y += 0.01f;
+   else if (y_frac > 0.99f)
+      y -= 0.01f;
+
+   orig[0] = x;
+   orig[1] = y;
+
+   // test a ray from (-infinity,y) to (x,y)
+   for (i=0; i < nverts; ++i) {
+      if (verts[i].type == STBTT_vline) {
+         int x0 = (int) verts[i-1].x, y0 = (int) verts[i-1].y;
+         int x1 = (int) verts[i  ].x, y1 = (int) verts[i  ].y;
+         if (y > STBTT_min(y0,y1) && y < STBTT_max(y0,y1) && x > STBTT_min(x0,x1)) {
+            float x_inter = (y - y0) / (y1 - y0) * (x1-x0) + x0;
+            if (x_inter < x)
+               winding += (y0 < y1) ? 1 : -1;
+         }
+      }
+      if (verts[i].type == STBTT_vcurve) {
+         int x0 = (int) verts[i-1].x , y0 = (int) verts[i-1].y ;
+         int x1 = (int) verts[i  ].cx, y1 = (int) verts[i  ].cy;
+         int x2 = (int) verts[i  ].x , y2 = (int) verts[i  ].y ;
+         int ax = STBTT_min(x0,STBTT_min(x1,x2)), ay = STBTT_min(y0,STBTT_min(y1,y2));
+         int by = STBTT_max(y0,STBTT_max(y1,y2));
+         if (y > ay && y < by && x > ax) {
+            float q0[2],q1[2],q2[2];
+            float hits[2][2];
+            q0[0] = (float)x0;
+            q0[1] = (float)y0;
+            q1[0] = (float)x1;
+            q1[1] = (float)y1;
+            q2[0] = (float)x2;
+            q2[1] = (float)y2;
+            if (equal(q0,q1) || equal(q1,q2)) {
+               x0 = (int)verts[i-1].x;
+               y0 = (int)verts[i-1].y;
+               x1 = (int)verts[i  ].x;
+               y1 = (int)verts[i  ].y;
+               if (y > STBTT_min(y0,y1) && y < STBTT_max(y0,y1) && x > STBTT_min(x0,x1)) {
+                  float x_inter = (y - y0) / (y1 - y0) * (x1-x0) + x0;
+                  if (x_inter < x)
+                     winding += (y0 < y1) ? 1 : -1;
+               }
+            } else {
+               int num_hits = stbtt__ray_intersect_bezier(orig, ray, q0, q1, q2, hits);
+               if (num_hits >= 1)
+                  if (hits[0][0] < 0)
+                     winding += (hits[0][1] < 0 ? -1 : 1);
+               if (num_hits >= 2)
+                  if (hits[1][0] < 0)
+                     winding += (hits[1][1] < 0 ? -1 : 1);
+            }
+         }
+      }
+   }
+   return winding;
+}
+
+static float stbtt__cuberoot( float x )
+{
+   if (x<0)
+      return -(float) STBTT_pow(-x,1.0f/3.0f);
+   else
+      return  (float) STBTT_pow( x,1.0f/3.0f);
+}
+
+// x^3 + a*x^2 + b*x + c = 0
+static int stbtt__solve_cubic(float a, float b, float c, float* r)
+{
+   float s = -a / 3;
+   float p = b - a*a / 3;
+   float q = a * (2*a*a - 9*b) / 27 + c;
+   float p3 = p*p*p;
+   float d = q*q + 4*p3 / 27;
+   if (d >= 0) {
+      float z = (float) STBTT_sqrt(d);
+      float u = (-q + z) / 2;
+      float v = (-q - z) / 2;
+      u = stbtt__cuberoot(u);
+      v = stbtt__cuberoot(v);
+      r[0] = s + u + v;
+      return 1;
+   } else {
+      float u = (float) STBTT_sqrt(-p/3);
+      float v = (float) STBTT_acos(-STBTT_sqrt(-27/p3) * q / 2) / 3; // p3 must be negative, since d is negative
+      float m = (float) STBTT_cos(v);
+      float n = (float) STBTT_cos(v-3.141592/2)*1.732050808f;
+      r[0] = s + u * 2 * m;
+      r[1] = s - u * (m + n);
+      r[2] = s - u * (m - n);
+
+      //STBTT_assert( STBTT_fabs(((r[0]+a)*r[0]+b)*r[0]+c) < 0.05f);  // these asserts may not be safe at all scales, though they're in bezier t parameter units so maybe?
+      //STBTT_assert( STBTT_fabs(((r[1]+a)*r[1]+b)*r[1]+c) < 0.05f);
+      //STBTT_assert( STBTT_fabs(((r[2]+a)*r[2]+b)*r[2]+c) < 0.05f);
+      return 3;
+   }
+}
+
+STBTT_DEF unsigned char * stbtt_GetGlyphSDF(const stbtt_fontinfo *info, float scale, int glyph, int padding, unsigned char onedge_value, float pixel_dist_scale, int *width, int *height, int *xoff, int *yoff)
+{
+   float scale_x = scale, scale_y = scale;
+   int ix0,iy0,ix1,iy1;
+   int w,h;
+   unsigned char *data;
+
+   if (scale == 0) return NULL;
+
+   stbtt_GetGlyphBitmapBoxSubpixel(info, glyph, scale, scale, 0.0f,0.0f, &ix0,&iy0,&ix1,&iy1);
+
+   // if empty, return NULL
+   if (ix0 == ix1 || iy0 == iy1)
+      return NULL;
+
+   ix0 -= padding;
+   iy0 -= padding;
+   ix1 += padding;
+   iy1 += padding;
+
+   w = (ix1 - ix0);
+   h = (iy1 - iy0);
+
+   if (width ) *width  = w;
+   if (height) *height = h;
+   if (xoff  ) *xoff   = ix0;
+   if (yoff  ) *yoff   = iy0;
+
+   // invert for y-downwards bitmaps
+   scale_y = -scale_y;
+
+   {
+      int x,y,i,j;
+      float *precompute;
+      stbtt_vertex *verts;
+      int num_verts = stbtt_GetGlyphShape(info, glyph, &verts);
+      data = (unsigned char *) STBTT_malloc(w * h, info->userdata);
+      precompute = (float *) STBTT_malloc(num_verts * sizeof(float), info->userdata);
+
+      for (i=0,j=num_verts-1; i < num_verts; j=i++) {
+         if (verts[i].type == STBTT_vline) {
+            float x0 = verts[i].x*scale_x, y0 = verts[i].y*scale_y;
+            float x1 = verts[j].x*scale_x, y1 = verts[j].y*scale_y;
+            float dist = (float) STBTT_sqrt((x1-x0)*(x1-x0) + (y1-y0)*(y1-y0));
+            precompute[i] = (dist == 0) ? 0.0f : 1.0f / dist;
+         } else if (verts[i].type == STBTT_vcurve) {
+            float x2 = verts[j].x *scale_x, y2 = verts[j].y *scale_y;
+            float x1 = verts[i].cx*scale_x, y1 = verts[i].cy*scale_y;
+            float x0 = verts[i].x *scale_x, y0 = verts[i].y *scale_y;
+            float bx = x0 - 2*x1 + x2, by = y0 - 2*y1 + y2;
+            float len2 = bx*bx + by*by;
+            if (len2 != 0.0f)
+               precompute[i] = 1.0f / (bx*bx + by*by);
+            else
+               precompute[i] = 0.0f;
+         } else
+            precompute[i] = 0.0f;
+      }
+
+      for (y=iy0; y < iy1; ++y) {
+         for (x=ix0; x < ix1; ++x) {
+            float val;
+            float min_dist = 999999.0f;
+            float sx = (float) x + 0.5f;
+            float sy = (float) y + 0.5f;
+            float x_gspace = (sx / scale_x);
+            float y_gspace = (sy / scale_y);
+
+            int winding = stbtt__compute_crossings_x(x_gspace, y_gspace, num_verts, verts); // @OPTIMIZE: this could just be a rasterization, but needs to be line vs. non-tesselated curves so a new path
+
+            for (i=0; i < num_verts; ++i) {
+               float x0 = verts[i].x*scale_x, y0 = verts[i].y*scale_y;
+
+               if (verts[i].type == STBTT_vline && precompute[i] != 0.0f) {
+                  float x1 = verts[i-1].x*scale_x, y1 = verts[i-1].y*scale_y;
+
+                  float dist,dist2 = (x0-sx)*(x0-sx) + (y0-sy)*(y0-sy);
+                  if (dist2 < min_dist*min_dist)
+                     min_dist = (float) STBTT_sqrt(dist2);
+
+                  // coarse culling against bbox
+                  //if (sx > STBTT_min(x0,x1)-min_dist && sx < STBTT_max(x0,x1)+min_dist &&
+                  //    sy > STBTT_min(y0,y1)-min_dist && sy < STBTT_max(y0,y1)+min_dist)
+                  dist = (float) STBTT_fabs((x1-x0)*(y0-sy) - (y1-y0)*(x0-sx)) * precompute[i];
+                  STBTT_assert(i != 0);
+                  if (dist < min_dist) {
+                     // check position along line
+                     // x' = x0 + t*(x1-x0), y' = y0 + t*(y1-y0)
+                     // minimize (x'-sx)*(x'-sx)+(y'-sy)*(y'-sy)
+                     float dx = x1-x0, dy = y1-y0;
+                     float px = x0-sx, py = y0-sy;
+                     // minimize (px+t*dx)^2 + (py+t*dy)^2 = px*px + 2*px*dx*t + t^2*dx*dx + py*py + 2*py*dy*t + t^2*dy*dy
+                     // derivative: 2*px*dx + 2*py*dy + (2*dx*dx+2*dy*dy)*t, set to 0 and solve
+                     float t = -(px*dx + py*dy) / (dx*dx + dy*dy);
+                     if (t >= 0.0f && t <= 1.0f)
+                        min_dist = dist;
+                  }
+               } else if (verts[i].type == STBTT_vcurve) {
+                  float x2 = verts[i-1].x *scale_x, y2 = verts[i-1].y *scale_y;
+                  float x1 = verts[i  ].cx*scale_x, y1 = verts[i  ].cy*scale_y;
+                  float box_x0 = STBTT_min(STBTT_min(x0,x1),x2);
+                  float box_y0 = STBTT_min(STBTT_min(y0,y1),y2);
+                  float box_x1 = STBTT_max(STBTT_max(x0,x1),x2);
+                  float box_y1 = STBTT_max(STBTT_max(y0,y1),y2);
+                  // coarse culling against bbox to avoid computing cubic unnecessarily
+                  if (sx > box_x0-min_dist && sx < box_x1+min_dist && sy > box_y0-min_dist && sy < box_y1+min_dist) {
+                     int num=0;
+                     float ax = x1-x0, ay = y1-y0;
+                     float bx = x0 - 2*x1 + x2, by = y0 - 2*y1 + y2;
+                     float mx = x0 - sx, my = y0 - sy;
+                     float res[3] = {0.f,0.f,0.f};
+                     float px,py,t,it,dist2;
+                     float a_inv = precompute[i];
+                     if (a_inv == 0.0) { // if a_inv is 0, it's 2nd degree so use quadratic formula
+                        float a = 3*(ax*bx + ay*by);
+                        float b = 2*(ax*ax + ay*ay) + (mx*bx+my*by);
+                        float c = mx*ax+my*ay;
+                        if (a == 0.0) { // if a is 0, it's linear
+                           if (b != 0.0) {
+                              res[num++] = -c/b;
+                           }
+                        } else {
+                           float discriminant = b*b - 4*a*c;
+                           if (discriminant < 0)
+                              num = 0;
+                           else {
+                              float root = (float) STBTT_sqrt(discriminant);
+                              res[0] = (-b - root)/(2*a);
+                              res[1] = (-b + root)/(2*a);
+                              num = 2; // don't bother distinguishing 1-solution case, as code below will still work
+                           }
+                        }
+                     } else {
+                        float b = 3*(ax*bx + ay*by) * a_inv; // could precompute this as it doesn't depend on sample point
+                        float c = (2*(ax*ax + ay*ay) + (mx*bx+my*by)) * a_inv;
+                        float d = (mx*ax+my*ay) * a_inv;
+                        num = stbtt__solve_cubic(b, c, d, res);
+                     }
+                     dist2 = (x0-sx)*(x0-sx) + (y0-sy)*(y0-sy);
+                     if (dist2 < min_dist*min_dist)
+                        min_dist = (float) STBTT_sqrt(dist2);
+
+                     if (num >= 1 && res[0] >= 0.0f && res[0] <= 1.0f) {
+                        t = res[0], it = 1.0f - t;
+                        px = it*it*x0 + 2*t*it*x1 + t*t*x2;
+                        py = it*it*y0 + 2*t*it*y1 + t*t*y2;
+                        dist2 = (px-sx)*(px-sx) + (py-sy)*(py-sy);
+                        if (dist2 < min_dist * min_dist)
+                           min_dist = (float) STBTT_sqrt(dist2);
+                     }
+                     if (num >= 2 && res[1] >= 0.0f && res[1] <= 1.0f) {
+                        t = res[1], it = 1.0f - t;
+                        px = it*it*x0 + 2*t*it*x1 + t*t*x2;
+                        py = it*it*y0 + 2*t*it*y1 + t*t*y2;
+                        dist2 = (px-sx)*(px-sx) + (py-sy)*(py-sy);
+                        if (dist2 < min_dist * min_dist)
+                           min_dist = (float) STBTT_sqrt(dist2);
+                     }
+                     if (num >= 3 && res[2] >= 0.0f && res[2] <= 1.0f) {
+                        t = res[2], it = 1.0f - t;
+                        px = it*it*x0 + 2*t*it*x1 + t*t*x2;
+                        py = it*it*y0 + 2*t*it*y1 + t*t*y2;
+                        dist2 = (px-sx)*(px-sx) + (py-sy)*(py-sy);
+                        if (dist2 < min_dist * min_dist)
+                           min_dist = (float) STBTT_sqrt(dist2);
+                     }
+                  }
+               }
+            }
+            if (winding == 0)
+               min_dist = -min_dist;  // if outside the shape, value is negative
+            val = onedge_value + pixel_dist_scale * min_dist;
+            if (val < 0)
+               val = 0;
+            else if (val > 255)
+               val = 255;
+            data[(y-iy0)*w+(x-ix0)] = (unsigned char) val;
+         }
+      }
+      STBTT_free(precompute, info->userdata);
+      STBTT_free(verts, info->userdata);
+   }
+   return data;
+}
+
+STBTT_DEF unsigned char * stbtt_GetCodepointSDF(const stbtt_fontinfo *info, float scale, int codepoint, int padding, unsigned char onedge_value, float pixel_dist_scale, int *width, int *height, int *xoff, int *yoff)
+{
+   return stbtt_GetGlyphSDF(info, scale, stbtt_FindGlyphIndex(info, codepoint), padding, onedge_value, pixel_dist_scale, width, height, xoff, yoff);
+}
+
+STBTT_DEF void stbtt_FreeSDF(unsigned char *bitmap, void *userdata)
+{
+   STBTT_free(bitmap, userdata);
+}
+
+//////////////////////////////////////////////////////////////////////////////
+//
+// font name matching -- recommended not to use this
+//
+
+// check if a utf8 string contains a prefix which is the utf16 string; if so return length of matching utf8 string
+static stbtt_int32 stbtt__CompareUTF8toUTF16_bigendian_prefix(stbtt_uint8 *s1, stbtt_int32 len1, stbtt_uint8 *s2, stbtt_int32 len2)
+{
+   stbtt_int32 i=0;
+
+   // convert utf16 to utf8 and compare the results while converting
+   while (len2) {
+      stbtt_uint16 ch = s2[0]*256 + s2[1];
+      if (ch < 0x80) {
+         if (i >= len1) return -1;
+         if (s1[i++] != ch) return -1;
+      } else if (ch < 0x800) {
+         if (i+1 >= len1) return -1;
+         if (s1[i++] != 0xc0 + (ch >> 6)) return -1;
+         if (s1[i++] != 0x80 + (ch & 0x3f)) return -1;
+      } else if (ch >= 0xd800 && ch < 0xdc00) {
+         stbtt_uint32 c;
+         stbtt_uint16 ch2 = s2[2]*256 + s2[3];
+         if (i+3 >= len1) return -1;
+         c = ((ch - 0xd800) << 10) + (ch2 - 0xdc00) + 0x10000;
+         if (s1[i++] != 0xf0 + (c >> 18)) return -1;
+         if (s1[i++] != 0x80 + ((c >> 12) & 0x3f)) return -1;
+         if (s1[i++] != 0x80 + ((c >>  6) & 0x3f)) return -1;
+         if (s1[i++] != 0x80 + ((c      ) & 0x3f)) return -1;
+         s2 += 2; // plus another 2 below
+         len2 -= 2;
+      } else if (ch >= 0xdc00 && ch < 0xe000) {
+         return -1;
+      } else {
+         if (i+2 >= len1) return -1;
+         if (s1[i++] != 0xe0 + (ch >> 12)) return -1;
+         if (s1[i++] != 0x80 + ((ch >> 6) & 0x3f)) return -1;
+         if (s1[i++] != 0x80 + ((ch     ) & 0x3f)) return -1;
+      }
+      s2 += 2;
+      len2 -= 2;
+   }
+   return i;
+}
+
+static int stbtt_CompareUTF8toUTF16_bigendian_internal(char *s1, int len1, char *s2, int len2)
+{
+   return len1 == stbtt__CompareUTF8toUTF16_bigendian_prefix((stbtt_uint8*) s1, len1, (stbtt_uint8*) s2, len2);
+}
+
+// returns results in whatever encoding you request... but note that 2-byte encodings
+// will be BIG-ENDIAN... use stbtt_CompareUTF8toUTF16_bigendian() to compare
+STBTT_DEF const char *stbtt_GetFontNameString(const stbtt_fontinfo *font, int *length, int platformID, int encodingID, int languageID, int nameID)
+{
+   stbtt_int32 i,count,stringOffset;
+   stbtt_uint8 *fc = font->data;
+   stbtt_uint32 offset = font->fontstart;
+   stbtt_uint32 nm = stbtt__find_table(fc, offset, "name");
+   if (!nm) return NULL;
+
+   count = ttUSHORT(fc+nm+2);
+   stringOffset = nm + ttUSHORT(fc+nm+4);
+   for (i=0; i < count; ++i) {
+      stbtt_uint32 loc = nm + 6 + 12 * i;
+      if (platformID == ttUSHORT(fc+loc+0) && encodingID == ttUSHORT(fc+loc+2)
+          && languageID == ttUSHORT(fc+loc+4) && nameID == ttUSHORT(fc+loc+6)) {
+         *length = ttUSHORT(fc+loc+8);
+         return (const char *) (fc+stringOffset+ttUSHORT(fc+loc+10));
+      }
+   }
+   return NULL;
+}
+
+static int stbtt__matchpair(stbtt_uint8 *fc, stbtt_uint32 nm, stbtt_uint8 *name, stbtt_int32 nlen, stbtt_int32 target_id, stbtt_int32 next_id)
+{
+   stbtt_int32 i;
+   stbtt_int32 count = ttUSHORT(fc+nm+2);
+   stbtt_int32 stringOffset = nm + ttUSHORT(fc+nm+4);
+
+   for (i=0; i < count; ++i) {
+      stbtt_uint32 loc = nm + 6 + 12 * i;
+      stbtt_int32 id = ttUSHORT(fc+loc+6);
+      if (id == target_id) {
+         // find the encoding
+         stbtt_int32 platform = ttUSHORT(fc+loc+0), encoding = ttUSHORT(fc+loc+2), language = ttUSHORT(fc+loc+4);
+
+         // is this a Unicode encoding?
+         if (platform == 0 || (platform == 3 && encoding == 1) || (platform == 3 && encoding == 10)) {
+            stbtt_int32 slen = ttUSHORT(fc+loc+8);
+            stbtt_int32 off = ttUSHORT(fc+loc+10);
+
+            // check if there's a prefix match
+            stbtt_int32 matchlen = stbtt__CompareUTF8toUTF16_bigendian_prefix(name, nlen, fc+stringOffset+off,slen);
+            if (matchlen >= 0) {
+               // check for target_id+1 immediately following, with same encoding & language
+               if (i+1 < count && ttUSHORT(fc+loc+12+6) == next_id && ttUSHORT(fc+loc+12) == platform && ttUSHORT(fc+loc+12+2) == encoding && ttUSHORT(fc+loc+12+4) == language) {
+                  slen = ttUSHORT(fc+loc+12+8);
+                  off = ttUSHORT(fc+loc+12+10);
+                  if (slen == 0) {
+                     if (matchlen == nlen)
+                        return 1;
+                  } else if (matchlen < nlen && name[matchlen] == ' ') {
+                     ++matchlen;
+                     if (stbtt_CompareUTF8toUTF16_bigendian_internal((char*) (name+matchlen), nlen-matchlen, (char*)(fc+stringOffset+off),slen))
+                        return 1;
+                  }
+               } else {
+                  // if nothing immediately following
+                  if (matchlen == nlen)
+                     return 1;
+               }
+            }
+         }
+
+         // @TODO handle other encodings
+      }
+   }
+   return 0;
+}
+
+static int stbtt__matches(stbtt_uint8 *fc, stbtt_uint32 offset, stbtt_uint8 *name, stbtt_int32 flags)
+{
+   stbtt_int32 nlen = (stbtt_int32) STBTT_strlen((char *) name);
+   stbtt_uint32 nm,hd;
+   if (!stbtt__isfont(fc+offset)) return 0;
+
+   // check italics/bold/underline flags in macStyle...
+   if (flags) {
+      hd = stbtt__find_table(fc, offset, "head");
+      if ((ttUSHORT(fc+hd+44) & 7) != (flags & 7)) return 0;
+   }
+
+   nm = stbtt__find_table(fc, offset, "name");
+   if (!nm) return 0;
+
+   if (flags) {
+      // if we checked the macStyle flags, then just check the family and ignore the subfamily
+      if (stbtt__matchpair(fc, nm, name, nlen, 16, -1))  return 1;
+      if (stbtt__matchpair(fc, nm, name, nlen,  1, -1))  return 1;
+      if (stbtt__matchpair(fc, nm, name, nlen,  3, -1))  return 1;
+   } else {
+      if (stbtt__matchpair(fc, nm, name, nlen, 16, 17))  return 1;
+      if (stbtt__matchpair(fc, nm, name, nlen,  1,  2))  return 1;
+      if (stbtt__matchpair(fc, nm, name, nlen,  3, -1))  return 1;
+   }
+
+   return 0;
+}
+
+static int stbtt_FindMatchingFont_internal(unsigned char *font_collection, char *name_utf8, stbtt_int32 flags)
+{
+   stbtt_int32 i;
+   for (i=0;;++i) {
+      stbtt_int32 off = stbtt_GetFontOffsetForIndex(font_collection, i);
+      if (off < 0) return off;
+      if (stbtt__matches((stbtt_uint8 *) font_collection, off, (stbtt_uint8*) name_utf8, flags))
+         return off;
+   }
+}
+
+#if defined(__GNUC__) || defined(__clang__)
+#pragma GCC diagnostic push
+#pragma GCC diagnostic ignored "-Wcast-qual"
+#endif
+
+STBTT_DEF int stbtt_BakeFontBitmap(const unsigned char *data, int offset,
+                                float pixel_height, unsigned char *pixels, int pw, int ph,
+                                int first_char, int num_chars, stbtt_bakedchar *chardata)
+{
+   return stbtt_BakeFontBitmap_internal((unsigned char *) data, offset, pixel_height, pixels, pw, ph, first_char, num_chars, chardata);
+}
+
+STBTT_DEF int stbtt_GetFontOffsetForIndex(const unsigned char *data, int index)
+{
+   return stbtt_GetFontOffsetForIndex_internal((unsigned char *) data, index);
+}
+
+STBTT_DEF int stbtt_GetNumberOfFonts(const unsigned char *data)
+{
+   return stbtt_GetNumberOfFonts_internal((unsigned char *) data);
+}
+
+STBTT_DEF int stbtt_InitFont(stbtt_fontinfo *info, const unsigned char *data, int offset)
+{
+   return stbtt_InitFont_internal(info, (unsigned char *) data, offset);
+}
+
+STBTT_DEF int stbtt_FindMatchingFont(const unsigned char *fontdata, const char *name, int flags)
+{
+   return stbtt_FindMatchingFont_internal((unsigned char *) fontdata, (char *) name, flags);
+}
+
+STBTT_DEF int stbtt_CompareUTF8toUTF16_bigendian(const char *s1, int len1, const char *s2, int len2)
+{
+   return stbtt_CompareUTF8toUTF16_bigendian_internal((char *) s1, len1, (char *) s2, len2);
+}
+
+#if defined(__GNUC__) || defined(__clang__)
+#pragma GCC diagnostic pop
+#endif
+
+#endif // STB_TRUETYPE_IMPLEMENTATION
+
+
+// FULL VERSION HISTORY
+//
+//   1.25 (2021-07-11) many fixes
+//   1.24 (2020-02-05) fix warning
+//   1.23 (2020-02-02) query SVG data for glyphs; query whole kerning table (but only kern not GPOS)
+//   1.22 (2019-08-11) minimize missing-glyph duplication; fix kerning if both 'GPOS' and 'kern' are defined
+//   1.21 (2019-02-25) fix warning
+//   1.20 (2019-02-07) PackFontRange skips missing codepoints; GetScaleFontVMetrics()
+//   1.19 (2018-02-11) OpenType GPOS kerning (horizontal only), STBTT_fmod
+//   1.18 (2018-01-29) add missing function
+//   1.17 (2017-07-23) make more arguments const; doc fix
+//   1.16 (2017-07-12) SDF support
+//   1.15 (2017-03-03) make more arguments const
+//   1.14 (2017-01-16) num-fonts-in-TTC function
+//   1.13 (2017-01-02) support OpenType fonts, certain Apple fonts
+//   1.12 (2016-10-25) suppress warnings about casting away const with -Wcast-qual
+//   1.11 (2016-04-02) fix unused-variable warning
+//   1.10 (2016-04-02) allow user-defined fabs() replacement
+//                     fix memory leak if fontsize=0.0
+//                     fix warning from duplicate typedef
+//   1.09 (2016-01-16) warning fix; avoid crash on outofmem; use alloc userdata for PackFontRanges
+//   1.08 (2015-09-13) document stbtt_Rasterize(); fixes for vertical & horizontal edges
+//   1.07 (2015-08-01) allow PackFontRanges to accept arrays of sparse codepoints;
+//                     allow PackFontRanges to pack and render in separate phases;
+//                     fix stbtt_GetFontOFfsetForIndex (never worked for non-0 input?);
+//                     fixed an assert() bug in the new rasterizer
+//                     replace assert() with STBTT_assert() in new rasterizer
+//   1.06 (2015-07-14) performance improvements (~35% faster on x86 and x64 on test machine)
+//                     also more precise AA rasterizer, except if shapes overlap
+//                     remove need for STBTT_sort
+//   1.05 (2015-04-15) fix misplaced definitions for STBTT_STATIC
+//   1.04 (2015-04-15) typo in example
+//   1.03 (2015-04-12) STBTT_STATIC, fix memory leak in new packing, various fixes
+//   1.02 (2014-12-10) fix various warnings & compile issues w/ stb_rect_pack, C++
+//   1.01 (2014-12-08) fix subpixel position when oversampling to exactly match
+//                        non-oversampled; STBTT_POINT_SIZE for packed case only
+//   1.00 (2014-12-06) add new PackBegin etc. API, w/ support for oversampling
+//   0.99 (2014-09-18) fix multiple bugs with subpixel rendering (ryg)
+//   0.9  (2014-08-07) support certain mac/iOS fonts without an MS platformID
+//   0.8b (2014-07-07) fix a warning
+//   0.8  (2014-05-25) fix a few more warnings
+//   0.7  (2013-09-25) bugfix: subpixel glyph bug fixed in 0.5 had come back
+//   0.6c (2012-07-24) improve documentation
+//   0.6b (2012-07-20) fix a few more warnings
+//   0.6  (2012-07-17) fix warnings; added stbtt_ScaleForMappingEmToPixels,
+//                        stbtt_GetFontBoundingBox, stbtt_IsGlyphEmpty
+//   0.5  (2011-12-09) bugfixes:
+//                        subpixel glyph renderer computed wrong bounding box
+//                        first vertex of shape can be off-curve (FreeSans)
+//   0.4b (2011-12-03) fixed an error in the font baking example
+//   0.4  (2011-12-01) kerning, subpixel rendering (tor)
+//                    bugfixes for:
+//                        codepoint-to-glyph conversion using table fmt=12
+//                        codepoint-to-glyph conversion using table fmt=4
+//                        stbtt_GetBakedQuad with non-square texture (Zer)
+//                    updated Hello World! sample to use kerning and subpixel
+//                    fixed some warnings
+//   0.3  (2009-06-24) cmap fmt=12, compound shapes (MM)
+//                    userdata, malloc-from-userdata, non-zero fill (stb)
+//   0.2  (2009-03-11) Fix unsigned/signed char warnings
+//   0.1  (2009-03-09) First public release
+//
+
+/*
+------------------------------------------------------------------------------
+This software is available under 2 licenses -- choose whichever you prefer.
+------------------------------------------------------------------------------
+ALTERNATIVE A - MIT License
+Copyright (c) 2017 Sean Barrett
+Permission is hereby granted, free of charge, to any person obtaining a copy of
+this software and associated documentation files (the "Software"), to deal in
+the Software without restriction, including without limitation the rights to
+use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
+of the Software, and to permit persons to whom the Software is furnished to do
+so, subject to the following conditions:
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
+------------------------------------------------------------------------------
+ALTERNATIVE B - Public Domain (www.unlicense.org)
+This is free and unencumbered software released into the public domain.
+Anyone is free to copy, modify, publish, use, compile, sell, or distribute this
+software, either in source code form or as a compiled binary, for any purpose,
+commercial or non-commercial, and by any means.
+In jurisdictions that recognize copyright laws, the author or authors of this
+software dedicate any and all copyright interest in the software to the public
+domain. We make this dedication for the benefit of the public at large and to
+the detriment of our heirs and successors. We intend this dedication to be an
+overt act of relinquishment in perpetuity of all present and future rights to
+this software under copyright law.
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+------------------------------------------------------------------------------
+*/
diff --git a/tests/manual/rhi/shared/imgui/qrhiimgui.cpp b/tests/manual/rhi/shared/imgui/qrhiimgui.cpp
new file mode 100644
index 00000000..d4330238
--- /dev/null
+++ b/tests/manual/rhi/shared/imgui/qrhiimgui.cpp
@@ -0,0 +1,606 @@
+// Copyright (C) 2022 The Qt Company Ltd.
+// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
+
+#include "qrhiimgui_p.h"
+#include <QtCore/qfile.h>
+#include <QtGui/qguiapplication.h>
+#include <QtGui/qevent.h>
+#include <QtGui/qclipboard.h>
+#include <QtGui/qimage.h>
+
+#include "imgui.h"
+
+// the imgui default
+static_assert(sizeof(ImDrawVert) == 20);
+// switched to uint in imconfig.h to avoid trouble with 4 byte offset alignment reqs
+static_assert(sizeof(ImDrawIdx) == 4);
+
+QT_BEGIN_NAMESPACE
+
+static QShader getShader(const QString &name)
+{
+    QFile f(name);
+    if (f.open(QIODevice::ReadOnly))
+        return QShader::fromSerialized(f.readAll());
+
+    return QShader();
+}
+
+QRhiImguiRenderer::~QRhiImguiRenderer()
+{
+    releaseResources();
+}
+
+void QRhiImguiRenderer::releaseResources()
+{
+    for (Texture &t : m_textures) {
+        delete t.tex;
+        delete t.srb;
+    }
+    m_textures.clear();
+
+    m_vbuf.reset();
+    m_ibuf.reset();
+    m_ubuf.reset();
+    m_ps.reset();
+    m_sampler.reset();
+
+    m_rhi = nullptr;
+}
+
+void QRhiImguiRenderer::prepare(QRhi *rhi, QRhiRenderTarget *rt, QRhiCommandBuffer *cb, const QMatrix4x4 &mvp, float opacity)
+{
+    if (!m_rhi) {
+        m_rhi = rhi;
+    } else if (m_rhi != rhi) {
+        releaseResources();
+        m_rhi = rhi;
+    }
+
+    if (!m_rhi || f.draw.isEmpty())
+        return;
+
+    m_rt = rt;
+    m_cb = cb;
+
+    if (!m_vbuf) {
+        m_vbuf.reset(m_rhi->newBuffer(QRhiBuffer::Dynamic, QRhiBuffer::VertexBuffer, f.totalVbufSize));
+        m_vbuf->setName(QByteArrayLiteral("imgui vertex buffer"));
+        if (!m_vbuf->create())
+            return;
+    } else {
+        if (f.totalVbufSize > m_vbuf->size()) {
+            m_vbuf->setSize(f.totalVbufSize);
+            if (!m_vbuf->create())
+                return;
+        }
+    }
+    if (!m_ibuf) {
+        m_ibuf.reset(m_rhi->newBuffer(QRhiBuffer::Dynamic, QRhiBuffer::IndexBuffer, f.totalIbufSize));
+        m_ibuf->setName(QByteArrayLiteral("imgui index buffer"));
+        if (!m_ibuf->create())
+            return;
+    } else {
+        if (f.totalIbufSize > m_ibuf->size()) {
+            m_ibuf->setSize(f.totalIbufSize);
+            if (!m_ibuf->create())
+                return;
+        }
+    }
+
+    if (!m_ubuf) {
+        m_ubuf.reset(m_rhi->newBuffer(QRhiBuffer::Dynamic, QRhiBuffer::UniformBuffer, 64 + 4));
+        m_ubuf->setName(QByteArrayLiteral("imgui uniform buffer"));
+        if (!m_ubuf->create())
+            return;
+    }
+
+    if (!m_sampler) {
+        m_sampler.reset(m_rhi->newSampler(QRhiSampler::Linear, QRhiSampler::Linear, QRhiSampler::None,
+                                          QRhiSampler::Repeat, QRhiSampler::Repeat));
+        m_sampler->setName(QByteArrayLiteral("imgui sampler"));
+        if (!m_sampler->create())
+            return;
+    }
+
+    if (m_textures.isEmpty()) {
+        Texture fontTex;
+        fontTex.image = sf.fontTextureData;
+        m_textures.append(fontTex);
+    } else if (!sf.fontTextureData.isNull()) {
+        Texture fontTex;
+        fontTex.image = sf.fontTextureData;
+        delete m_textures[0].tex;
+        delete m_textures[0].srb;
+        m_textures[0] = fontTex;
+    }
+
+    QVarLengthArray<int, 8> texturesNeedUpdate;
+    for (int i = 0; i < m_textures.count(); ++i) {
+        Texture &t(m_textures[i]);
+        if (!t.tex) {
+            t.tex = m_rhi->newTexture(QRhiTexture::RGBA8, t.image.size());
+            t.tex->setName(QByteArrayLiteral("imgui texture ") + QByteArray::number(i));
+            if (!t.tex->create())
+                return;
+            texturesNeedUpdate.append(i);
+        }
+        if (!t.srb) {
+            t.srb = m_rhi->newShaderResourceBindings();
+            t.srb->setBindings({
+                QRhiShaderResourceBinding::uniformBuffer(0, QRhiShaderResourceBinding::VertexStage | QRhiShaderResourceBinding::FragmentStage, m_ubuf.get()),
+                QRhiShaderResourceBinding::sampledTexture(1, QRhiShaderResourceBinding::FragmentStage, t.tex, m_sampler.get())
+            });
+            if (!t.srb->create())
+                return;
+        }
+    }
+
+    // If layer.enabled is toggled on the item or an ancestor, the render
+    // target is then suddenly different and may not be compatible.
+    if (m_ps && m_rt->renderPassDescriptor()->serializedFormat() != m_renderPassFormat)
+        m_ps.reset();
+
+    if (!m_ps) {
+        QShader vs = getShader(QLatin1String(":/imgui.vert.qsb"));
+        QShader fs = getShader(QLatin1String(":/imgui.frag.qsb"));
+        if (!vs.isValid() || !fs.isValid()) {
+            qWarning("Failed to load imgui shaders");
+            return;
+        }
+
+        m_ps.reset(m_rhi->newGraphicsPipeline());
+        QRhiGraphicsPipeline::TargetBlend blend;
+        blend.enable = true;
+        // Premultiplied alpha (matches imgui.frag). Would not be needed if we
+        // only cared about outputting to the window (the common case), but
+        // once going through a texture (Item layer, ShaderEffect) which is
+        // then sampled by Quick, the result wouldn't be correct otherwise.
+        blend.srcColor = QRhiGraphicsPipeline::One;
+        blend.dstColor = QRhiGraphicsPipeline::OneMinusSrcAlpha;
+        blend.srcAlpha = QRhiGraphicsPipeline::One;
+        blend.dstAlpha = QRhiGraphicsPipeline::OneMinusSrcAlpha;
+        m_ps->setTargetBlends({ blend });
+        m_ps->setCullMode(QRhiGraphicsPipeline::None);
+        m_ps->setDepthTest(true);
+        m_ps->setDepthOp(QRhiGraphicsPipeline::LessOrEqual);
+        m_ps->setDepthWrite(false);
+        m_ps->setFlags(QRhiGraphicsPipeline::UsesScissor);
+
+        m_ps->setShaderStages({
+            { QRhiShaderStage::Vertex, vs },
+            { QRhiShaderStage::Fragment, fs }
+        });
+
+        QRhiVertexInputLayout inputLayout;
+        inputLayout.setBindings({
+            { 4 * sizeof(float) + sizeof(quint32) }
+        });
+        inputLayout.setAttributes({
+            { 0, 0, QRhiVertexInputAttribute::Float2, 0 },
+            { 0, 1, QRhiVertexInputAttribute::Float2, 2 * sizeof(float) },
+            { 0, 2, QRhiVertexInputAttribute::UNormByte4, 4 * sizeof(float) }
+        });
+
+        m_ps->setVertexInputLayout(inputLayout);
+        m_ps->setShaderResourceBindings(m_textures[0].srb);
+        m_ps->setRenderPassDescriptor(m_rt->renderPassDescriptor());
+        m_renderPassFormat = m_rt->renderPassDescriptor()->serializedFormat();
+
+        if (!m_ps->create())
+            return;
+    }
+
+    QRhiResourceUpdateBatch *u = m_rhi->nextResourceUpdateBatch();
+
+    for (const CmdListBuffer &b : f.vbuf)
+        u->updateDynamicBuffer(m_vbuf.get(), b.offset, b.data.size(), b.data.constData());
+
+    for (const CmdListBuffer &b : f.ibuf)
+        u->updateDynamicBuffer(m_ibuf.get(), b.offset, b.data.size(), b.data.constData());
+
+    u->updateDynamicBuffer(m_ubuf.get(), 0, 64, mvp.constData());
+    u->updateDynamicBuffer(m_ubuf.get(), 64, 4, &opacity);
+
+    for (int i = 0; i < texturesNeedUpdate.count(); ++i) {
+        Texture &t(m_textures[texturesNeedUpdate[i]]);
+        u->uploadTexture(t.tex, t.image);
+        t.image = QImage();
+    }
+
+    m_cb->resourceUpdate(u);
+}
+
+void QRhiImguiRenderer::render()
+{
+    if (!m_rhi || f.draw.isEmpty() || !m_ps)
+        return;
+
+    m_cb->setGraphicsPipeline(m_ps.get());
+
+    const QSize viewportSize = m_rt->pixelSize();
+    bool needsViewport = true;
+
+    for (const DrawCmd &c : f.draw) {
+        QRhiCommandBuffer::VertexInput vbufBinding(m_vbuf.get(), f.vbuf[c.cmdListBufferIdx].offset);
+        if (needsViewport) {
+            needsViewport = false;
+            m_cb->setViewport({ 0, 0, float(viewportSize.width()), float(viewportSize.height()) });
+        }
+        const float sx1 = c.clipRect.x() + c.itemPixelOffset.x();
+        const float sy1 = c.clipRect.y() + c.itemPixelOffset.y();
+        const float sx2 = c.clipRect.z() + c.itemPixelOffset.x();
+        const float sy2 = c.clipRect.w() + c.itemPixelOffset.y();
+        QPoint scissorPos = QPointF(sx1, viewportSize.height() - sy2).toPoint();
+        QSize scissorSize = QSizeF(sx2 - sx1, sy2 - sy1).toSize();
+        scissorPos.setX(qMax(0, scissorPos.x()));
+        scissorPos.setY(qMax(0, scissorPos.y()));
+        scissorSize.setWidth(qMin(viewportSize.width(), scissorSize.width()));
+        scissorSize.setHeight(qMin(viewportSize.height(), scissorSize.height()));
+        m_cb->setScissor({ scissorPos.x(), scissorPos.y(), scissorSize.width(), scissorSize.height() });
+        m_cb->setShaderResources(m_textures[c.textureIndex].srb);
+        m_cb->setVertexInput(0, 1, &vbufBinding, m_ibuf.get(), c.indexOffset, QRhiCommandBuffer::IndexUInt32);
+        m_cb->drawIndexed(c.elemCount);
+    }
+}
+
+static const char *getClipboardText(void *)
+{
+    static QByteArray contents;
+    contents = QGuiApplication::clipboard()->text().toUtf8();
+    return contents.constData();
+}
+
+static void setClipboardText(void *, const char *text)
+{
+    QGuiApplication::clipboard()->setText(QString::fromUtf8(text));
+}
+
+QRhiImgui::QRhiImgui()
+{
+    ImGui::CreateContext();
+    rebuildFontAtlas();
+    ImGuiIO &io(ImGui::GetIO());
+    io.GetClipboardTextFn = getClipboardText;
+    io.SetClipboardTextFn = setClipboardText;
+}
+
+QRhiImgui::~QRhiImgui()
+{
+    ImGui::DestroyContext();
+}
+
+void QRhiImgui::rebuildFontAtlas()
+{
+    unsigned char *pixels;
+    int w, h;
+    ImGuiIO &io(ImGui::GetIO());
+    io.Fonts->GetTexDataAsRGBA32(&pixels, &w, &h);
+    const QImage wrapperImg(const_cast<const uchar *>(pixels), w, h, QImage::Format_RGBA8888);
+    sf.fontTextureData = wrapperImg.copy();
+    io.Fonts->SetTexID(reinterpret_cast<ImTextureID>(quintptr(0)));
+}
+
+void QRhiImgui::nextFrame(const QSizeF &logicalOutputSize, float dpr, const QPointF &logicalOffset, FrameFunc frameFunc)
+{
+    ImGuiIO &io(ImGui::GetIO());
+
+    const QPointF itemPixelOffset = logicalOffset * dpr;
+    f.outputPixelSize = (logicalOutputSize * dpr).toSize();
+    io.DisplaySize.x = logicalOutputSize.width();
+    io.DisplaySize.y = logicalOutputSize.height();
+    io.DisplayFramebufferScale = ImVec2(dpr, dpr);
+
+    ImGui::NewFrame();
+    if (frameFunc)
+        frameFunc();
+    ImGui::Render();
+
+    ImDrawData *draw = ImGui::GetDrawData();
+    draw->ScaleClipRects(ImVec2(dpr, dpr));
+
+    f.vbuf.resize(draw->CmdListsCount);
+    f.ibuf.resize(draw->CmdListsCount);
+    f.totalVbufSize = 0;
+    f.totalIbufSize = 0;
+    for (int n = 0; n < draw->CmdListsCount; ++n) {
+        const ImDrawList *cmdList = draw->CmdLists[n];
+        const int vbufSize = cmdList->VtxBuffer.Size * sizeof(ImDrawVert);
+        f.vbuf[n].offset = f.totalVbufSize;
+        f.totalVbufSize += vbufSize;
+        const int ibufSize = cmdList->IdxBuffer.Size * sizeof(ImDrawIdx);
+        f.ibuf[n].offset = f.totalIbufSize;
+        f.totalIbufSize += ibufSize;
+    }
+    f.draw.clear();
+    for (int n = 0; n < draw->CmdListsCount; ++n) {
+        const ImDrawList *cmdList = draw->CmdLists[n];
+        f.vbuf[n].data = QByteArray(reinterpret_cast<const char *>(cmdList->VtxBuffer.Data),
+                                    cmdList->VtxBuffer.Size * sizeof(ImDrawVert));
+        f.ibuf[n].data = QByteArray(reinterpret_cast<const char *>(cmdList->IdxBuffer.Data),
+                                    cmdList->IdxBuffer.Size * sizeof(ImDrawIdx));
+        const ImDrawIdx *indexBufOffset = nullptr;
+        for (int i = 0; i < cmdList->CmdBuffer.Size; ++i) {
+            const ImDrawCmd *cmd = &cmdList->CmdBuffer[i];
+            const quint32 indexOffset = f.ibuf[n].offset + quintptr(indexBufOffset);
+            if (!cmd->UserCallback) {
+                QRhiImguiRenderer::DrawCmd dc;
+                dc.cmdListBufferIdx = n;
+                dc.textureIndex = int(reinterpret_cast<qintptr>(cmd->TextureId));
+                dc.indexOffset = indexOffset;
+                dc.elemCount = cmd->ElemCount;
+                dc.itemPixelOffset = itemPixelOffset;
+                dc.clipRect = QVector4D(cmd->ClipRect.x, cmd->ClipRect.y, cmd->ClipRect.z, cmd->ClipRect.w);
+                f.draw.append(dc);
+            } else {
+                cmd->UserCallback(cmdList, cmd);
+            }
+            indexBufOffset += cmd->ElemCount;
+        }
+    }
+}
+
+void QRhiImgui::syncRenderer(QRhiImguiRenderer *renderer)
+{
+    renderer->sf = sf;
+    sf.fontTextureData = QImage();
+    renderer->f = std::move(f);
+}
+
+static void updateKeyboardModifiers(Qt::KeyboardModifiers modifiers)
+{
+    ImGuiIO &io(ImGui::GetIO());
+    io.AddKeyEvent(ImGuiKey_ModCtrl, modifiers.testFlag(Qt::ControlModifier));
+    io.AddKeyEvent(ImGuiKey_ModShift, modifiers.testFlag(Qt::ShiftModifier));
+    io.AddKeyEvent(ImGuiKey_ModAlt, modifiers.testFlag(Qt::AltModifier));
+    io.AddKeyEvent(ImGuiKey_ModSuper, modifiers.testFlag(Qt::MetaModifier));
+}
+
+static ImGuiKey mapKey(int k)
+{
+    switch (k) {
+    case Qt::Key_Space:
+        return ImGuiKey_Space;
+    case Qt::Key_Apostrophe:
+        return ImGuiKey_Apostrophe;
+    case Qt::Key_Comma:
+        return ImGuiKey_Comma;
+    case Qt::Key_Minus:
+        return ImGuiKey_Minus;
+    case Qt::Key_Period:
+        return ImGuiKey_Period;
+    case Qt::Key_Slash:
+        return ImGuiKey_Slash;
+    case Qt::Key_0:
+        return ImGuiKey_0;
+    case Qt::Key_1:
+        return ImGuiKey_1;
+    case Qt::Key_2:
+        return ImGuiKey_2;
+    case Qt::Key_3:
+        return ImGuiKey_3;
+    case Qt::Key_4:
+        return ImGuiKey_4;
+    case Qt::Key_5:
+        return ImGuiKey_5;
+    case Qt::Key_6:
+        return ImGuiKey_6;
+    case Qt::Key_7:
+        return ImGuiKey_8;
+    case Qt::Key_8:
+        return ImGuiKey_8;
+    case Qt::Key_9:
+        return ImGuiKey_9;
+    case Qt::Key_Semicolon:
+        return ImGuiKey_Semicolon;
+    case Qt::Key_Equal:
+        return ImGuiKey_Equal;
+    case Qt::Key_A:
+        return ImGuiKey_A;
+    case Qt::Key_B:
+        return ImGuiKey_B;
+    case Qt::Key_C:
+        return ImGuiKey_C;
+    case Qt::Key_D:
+        return ImGuiKey_D;
+    case Qt::Key_E:
+        return ImGuiKey_E;
+    case Qt::Key_F:
+        return ImGuiKey_F;
+    case Qt::Key_G:
+        return ImGuiKey_G;
+    case Qt::Key_H:
+        return ImGuiKey_H;
+    case Qt::Key_I:
+        return ImGuiKey_I;
+    case Qt::Key_J:
+        return ImGuiKey_J;
+    case Qt::Key_K:
+        return ImGuiKey_K;
+    case Qt::Key_L:
+        return ImGuiKey_L;
+    case Qt::Key_M:
+        return ImGuiKey_M;
+    case Qt::Key_N:
+        return ImGuiKey_N;
+    case Qt::Key_O:
+        return ImGuiKey_O;
+    case Qt::Key_P:
+        return ImGuiKey_P;
+    case Qt::Key_Q:
+        return ImGuiKey_Q;
+    case Qt::Key_R:
+        return ImGuiKey_R;
+    case Qt::Key_S:
+        return ImGuiKey_S;
+    case Qt::Key_T:
+        return ImGuiKey_T;
+    case Qt::Key_U:
+        return ImGuiKey_U;
+    case Qt::Key_V:
+        return ImGuiKey_V;
+    case Qt::Key_W:
+        return ImGuiKey_W;
+    case Qt::Key_X:
+        return ImGuiKey_X;
+    case Qt::Key_Y:
+        return ImGuiKey_Y;
+    case Qt::Key_Z:
+        return ImGuiKey_Z;
+    case Qt::Key_BracketLeft:
+        return ImGuiKey_LeftBracket;
+    case Qt::Key_Backslash:
+        return ImGuiKey_Backslash;
+    case Qt::Key_BracketRight:
+        return ImGuiKey_RightBracket;
+    case Qt::Key_QuoteLeft:
+        return ImGuiKey_GraveAccent;
+    case Qt::Key_Escape:
+        return ImGuiKey_Escape;
+    case Qt::Key_Tab:
+        return ImGuiKey_Tab;
+    case Qt::Key_Backspace:
+        return ImGuiKey_Backspace;
+    case Qt::Key_Return:
+    case Qt::Key_Enter:
+        return ImGuiKey_Enter;
+    case Qt::Key_Insert:
+        return ImGuiKey_Insert;
+    case Qt::Key_Delete:
+        return ImGuiKey_Delete;
+    case Qt::Key_Pause:
+        return ImGuiKey_Pause;
+    case Qt::Key_Print:
+        return ImGuiKey_PrintScreen;
+    case Qt::Key_Home:
+        return ImGuiKey_Home;
+    case Qt::Key_End:
+        return ImGuiKey_End;
+    case Qt::Key_Left:
+        return ImGuiKey_LeftArrow;
+    case Qt::Key_Up:
+        return ImGuiKey_UpArrow;
+    case Qt::Key_Right:
+        return ImGuiKey_RightArrow;
+    case Qt::Key_Down:
+        return ImGuiKey_DownArrow;
+    case Qt::Key_PageUp:
+        return ImGuiKey_PageUp;
+    case Qt::Key_PageDown:
+        return ImGuiKey_PageDown;
+    case Qt::Key_Shift:
+        return ImGuiKey_LeftShift;
+    case Qt::Key_Control:
+        return ImGuiKey_LeftCtrl;
+    case Qt::Key_Meta:
+        return ImGuiKey_LeftSuper;
+    case Qt::Key_Alt:
+        return ImGuiKey_LeftAlt;
+    case Qt::Key_CapsLock:
+        return ImGuiKey_CapsLock;
+    case Qt::Key_NumLock:
+        return ImGuiKey_NumLock;
+    case Qt::Key_ScrollLock:
+        return ImGuiKey_ScrollLock;
+    case Qt::Key_F1:
+        return ImGuiKey_F1;
+    case Qt::Key_F2:
+        return ImGuiKey_F2;
+    case Qt::Key_F3:
+        return ImGuiKey_F3;
+    case Qt::Key_F4:
+        return ImGuiKey_F4;
+    case Qt::Key_F5:
+        return ImGuiKey_F5;
+    case Qt::Key_F6:
+        return ImGuiKey_F6;
+    case Qt::Key_F7:
+        return ImGuiKey_F7;
+    case Qt::Key_F8:
+        return ImGuiKey_F8;
+    case Qt::Key_F9:
+        return ImGuiKey_F9;
+    case Qt::Key_F10:
+        return ImGuiKey_F10;
+    case Qt::Key_F11:
+        return ImGuiKey_F11;
+    case Qt::Key_F12:
+        return ImGuiKey_F12;
+    default:
+        break;
+    }
+    return ImGuiKey_None;
+}
+
+bool QRhiImgui::processEvent(QEvent *event)
+{
+    ImGuiIO &io(ImGui::GetIO());
+
+    switch (event->type()) {
+    case QEvent::MouseButtonPress:
+    {
+        QMouseEvent *me = static_cast<QMouseEvent *>(event);
+        updateKeyboardModifiers(me->modifiers());
+        Qt::MouseButtons buttons = me->buttons();
+        if (buttons.testFlag(Qt::LeftButton) && !pressedMouseButtons.testFlag(Qt::LeftButton))
+            io.AddMouseButtonEvent(0, true);
+        if (buttons.testFlag(Qt::RightButton) && !pressedMouseButtons.testFlag(Qt::RightButton))
+            io.AddMouseButtonEvent(1, true);
+        if (buttons.testFlag(Qt::MiddleButton) && !pressedMouseButtons.testFlag(Qt::MiddleButton))
+            io.AddMouseButtonEvent(2, true);
+        pressedMouseButtons = buttons;
+   }
+        return true;
+
+    case QEvent::MouseButtonRelease:
+    {
+        QMouseEvent *me = static_cast<QMouseEvent *>(event);
+        Qt::MouseButtons buttons = me->buttons();
+        if (!buttons.testFlag(Qt::LeftButton) && pressedMouseButtons.testFlag(Qt::LeftButton))
+            io.AddMouseButtonEvent(0, false);
+        if (!buttons.testFlag(Qt::RightButton) && pressedMouseButtons.testFlag(Qt::RightButton))
+            io.AddMouseButtonEvent(1, false);
+        if (!buttons.testFlag(Qt::MiddleButton) && pressedMouseButtons.testFlag(Qt::MiddleButton))
+            io.AddMouseButtonEvent(2, false);
+        pressedMouseButtons = buttons;
+    }
+        return true;
+
+    case QEvent::MouseMove:
+    {
+        QMouseEvent *me = static_cast<QMouseEvent *>(event);
+        const QPointF pos = me->position();
+        io.AddMousePosEvent(pos.x(), pos.y());
+    }
+        return true;
+
+    case QEvent::Wheel:
+    {
+        QWheelEvent *we = static_cast<QWheelEvent *>(event);
+        QPointF wheel(we->angleDelta().x() / 120.0f, we->angleDelta().y() / 120.0f);
+        io.AddMouseWheelEvent(wheel.x(), wheel.y());
+    }
+        return true;
+
+    case QEvent::KeyPress:
+    case QEvent::KeyRelease:
+    {
+        QKeyEvent *ke = static_cast<QKeyEvent *>(event);
+        const bool down = event->type() == QEvent::KeyPress;
+        updateKeyboardModifiers(ke->modifiers());
+        io.AddKeyEvent(mapKey(ke->key()), down);
+        if (down && !ke->text().isEmpty()) {
+            const QByteArray text = ke->text().toUtf8();
+            io.AddInputCharactersUTF8(text.constData());
+        }
+    }
+        return true;
+
+    default:
+        break;
+    }
+
+    return false;
+}
+
+QT_END_NAMESPACE
diff --git a/tests/manual/rhi/shared/imgui/qrhiimgui_p.h b/tests/manual/rhi/shared/imgui/qrhiimgui_p.h
new file mode 100644
index 00000000..31782144
--- /dev/null
+++ b/tests/manual/rhi/shared/imgui/qrhiimgui_p.h
@@ -0,0 +1,93 @@
+// Copyright (C) 2022 The Qt Company Ltd.
+// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
+
+#ifndef QRHIIMGUI_P_H
+#define QRHIIMGUI_P_H
+
+#include <rhi/qrhi.h>
+
+QT_BEGIN_NAMESPACE
+
+class QEvent;
+
+class QRhiImguiRenderer
+{
+public:
+    ~QRhiImguiRenderer();
+
+    struct CmdListBuffer {
+        quint32 offset;
+        QByteArray data;
+    };
+
+    struct DrawCmd {
+        int cmdListBufferIdx;
+        int textureIndex;
+        quint32 indexOffset;
+        quint32 elemCount;
+        QPointF itemPixelOffset;
+        QVector4D clipRect;
+    };
+
+    struct StaticRenderData {
+        QImage fontTextureData;
+    };
+
+    struct FrameRenderData {
+        quint32 totalVbufSize = 0;
+        quint32 totalIbufSize = 0;
+        QVarLengthArray<CmdListBuffer, 4> vbuf;
+        QVarLengthArray<CmdListBuffer, 4> ibuf;
+        QVarLengthArray<DrawCmd, 4> draw;
+        QSize outputPixelSize;
+    };
+
+    StaticRenderData sf;
+    FrameRenderData f;
+
+    void prepare(QRhi *rhi, QRhiRenderTarget *rt, QRhiCommandBuffer *cb, const QMatrix4x4 &mvp, float opacity);
+    void render();
+    void releaseResources();
+
+private:
+    QRhi *m_rhi = nullptr;
+    QRhiRenderTarget *m_rt = nullptr;
+    QRhiCommandBuffer *m_cb = nullptr;
+
+    std::unique_ptr<QRhiBuffer> m_vbuf;
+    std::unique_ptr<QRhiBuffer> m_ibuf;
+    std::unique_ptr<QRhiBuffer> m_ubuf;
+    std::unique_ptr<QRhiGraphicsPipeline> m_ps;
+    QVector<quint32> m_renderPassFormat;
+    std::unique_ptr<QRhiSampler> m_sampler;
+
+    struct Texture {
+        QImage image;
+        QRhiTexture *tex = nullptr;
+        QRhiShaderResourceBindings *srb = nullptr;
+    };
+    QVector<Texture> m_textures;
+};
+
+class QRhiImgui
+{
+public:
+    QRhiImgui();
+    ~QRhiImgui();
+
+    using FrameFunc = std::function<void()>;
+    void nextFrame(const QSizeF &logicalOutputSize, float dpr, const QPointF &logicalOffset, FrameFunc frameFunc);
+    void syncRenderer(QRhiImguiRenderer *renderer);
+    bool processEvent(QEvent *e);
+
+    void rebuildFontAtlas();
+
+private:
+    QRhiImguiRenderer::StaticRenderData sf;
+    QRhiImguiRenderer::FrameRenderData f;
+    Qt::MouseButtons pressedMouseButtons;
+};
+
+QT_END_NAMESPACE
+
+#endif
diff --git a/tests/manual/rhi/stereo/window.cpp b/tests/manual/rhi/stereo/window.cpp
index 23ab7260..391e8b75 100644
--- a/tests/manual/rhi/stereo/window.cpp
+++ b/tests/manual/rhi/stereo/window.cpp
@@ -5,7 +5,7 @@
 #include <QPlatformSurfaceEvent>
 #include <QTimer>
 #include <QFile>
-#include <QtGui/private/qshader_p.h>
+#include <rhi/qshader.h>
 #include "../shared/cube.h"
 
 Window::Window()
@@ -55,7 +55,7 @@ bool Window::event(QEvent *e)
 
 void Window::init()
 {
-    QRhi::Flags rhiFlags = QRhi::EnableDebugMarkers | QRhi::EnableProfiling;
+    QRhi::Flags rhiFlags = QRhi::EnableDebugMarkers;
 
     m_fallbackSurface.reset(QRhiGles2InitParams::newFallbackSurface());
     QRhiGles2InitParams params;
diff --git a/tests/manual/rhi/stereo/window.h b/tests/manual/rhi/stereo/window.h
index 28e25dfd..ea35040a 100644
--- a/tests/manual/rhi/stereo/window.h
+++ b/tests/manual/rhi/stereo/window.h
@@ -5,8 +5,8 @@
 #define WINDOW_H
 
 #include <QWindow>
-#include <QtGui/private/qrhigles2_p.h>
 #include <QOffscreenSurface>
+#include <rhi/qrhi.h>
 
 class Window : public QWindow
 {
diff --git a/tests/manual/rhi/texturearray/texturearray.cpp b/tests/manual/rhi/texturearray/texturearray.cpp
index 3c759386..0a354dd5 100644
--- a/tests/manual/rhi/texturearray/texturearray.cpp
+++ b/tests/manual/rhi/texturearray/texturearray.cpp
@@ -43,7 +43,9 @@ void Window::customInit()
     if (!m_r->isFeatureSupported(QRhi::TextureArrays))
         qFatal("Texture array objects are not supported by this backend");
 
-    d.texArr = m_r->newTextureArray(QRhiTexture::RGBA8, ARRAY_SIZE, QSize(512, 512));
+    d.texArr = m_r->newTextureArray(QRhiTexture::RGBA8, ARRAY_SIZE, QSize(512, 512), 1,
+        // mipmaps will be generated, to exercise that too
+        QRhiTexture::MipMapped | QRhiTexture::UsedWithGenerateMips);
     d.releasePool << d.texArr;
     d.texArr->create();
 
@@ -59,7 +61,9 @@ void Window::customInit()
     img.fill(Qt::yellow);
     d.initialUpdates->uploadTexture(d.texArr, QRhiTextureUploadDescription(QRhiTextureUploadEntry(3, 0, QRhiTextureSubresourceUploadDescription(img))));
 
-    d.sampler = m_r->newSampler(QRhiSampler::Linear, QRhiSampler::Linear, QRhiSampler::None,
+    d.initialUpdates->generateMips(d.texArr);
+
+    d.sampler = m_r->newSampler(QRhiSampler::Linear, QRhiSampler::Linear, QRhiSampler::Linear,
                                 QRhiSampler::ClampToEdge, QRhiSampler::ClampToEdge);
     d.releasePool << d.sampler;
     d.sampler->create();
diff --git a/tests/manual/rhi/triquadcube/quadrenderer.cpp b/tests/manual/rhi/triquadcube/quadrenderer.cpp
index 45364123..09c2047c 100644
--- a/tests/manual/rhi/triquadcube/quadrenderer.cpp
+++ b/tests/manual/rhi/triquadcube/quadrenderer.cpp
@@ -3,7 +3,7 @@
 
 #include "quadrenderer.h"
 #include <QFile>
-#include <QtGui/private/qshader_p.h>
+#include <rhi/qshader.h>
 
 // Renders a quad using indexed drawing. No QRhiGraphicsPipeline is created, it
 // expects to reuse the one created by TriangleRenderer. A separate
diff --git a/tests/manual/rhi/triquadcube/quadrenderer.h b/tests/manual/rhi/triquadcube/quadrenderer.h
index a9f882fe..f8757992 100644
--- a/tests/manual/rhi/triquadcube/quadrenderer.h
+++ b/tests/manual/rhi/triquadcube/quadrenderer.h
@@ -4,7 +4,7 @@
 #ifndef QUADRENDERER_H
 #define QUADRENDERER_H
 
-#include <QtGui/private/qrhi_p.h>
+#include <rhi/qrhi.h>
 
 class QuadRenderer
 {
diff --git a/tests/manual/rhi/triquadcube/texturedcuberenderer.cpp b/tests/manual/rhi/triquadcube/texturedcuberenderer.cpp
index 23b3c5c7..8e73194f 100644
--- a/tests/manual/rhi/triquadcube/texturedcuberenderer.cpp
+++ b/tests/manual/rhi/triquadcube/texturedcuberenderer.cpp
@@ -3,7 +3,7 @@
 
 #include "texturedcuberenderer.h"
 #include <QFile>
-#include <QtGui/private/qshader_p.h>
+#include <rhi/qshader.h>
 
 #include "../shared/cube.h"
 
diff --git a/tests/manual/rhi/triquadcube/texturedcuberenderer.h b/tests/manual/rhi/triquadcube/texturedcuberenderer.h
index 59517b2f..0972ad6d 100644
--- a/tests/manual/rhi/triquadcube/texturedcuberenderer.h
+++ b/tests/manual/rhi/triquadcube/texturedcuberenderer.h
@@ -4,7 +4,7 @@
 #ifndef TEXTUREDCUBERENDERER_H
 #define TEXTUREDCUBERENDERER_H
 
-#include <QtGui/private/qrhi_p.h>
+#include <rhi/qrhi.h>
 
 class TexturedCubeRenderer
 {
diff --git a/tests/manual/rhi/triquadcube/triangleoncuberenderer.cpp b/tests/manual/rhi/triquadcube/triangleoncuberenderer.cpp
index b66d8696..68313458 100644
--- a/tests/manual/rhi/triquadcube/triangleoncuberenderer.cpp
+++ b/tests/manual/rhi/triquadcube/triangleoncuberenderer.cpp
@@ -3,7 +3,7 @@
 
 #include "triangleoncuberenderer.h"
 #include <QFile>
-#include <QtGui/private/qshader_p.h>
+#include <rhi/qshader.h>
 
 // toggle to test the preserved content (no clear) path
 const bool IMAGE_UNDER_OFFSCREEN_RENDERING = false;
diff --git a/tests/manual/rhi/triquadcube/trianglerenderer.cpp b/tests/manual/rhi/triquadcube/trianglerenderer.cpp
index 160a94ef..46f6e0de 100644
--- a/tests/manual/rhi/triquadcube/trianglerenderer.cpp
+++ b/tests/manual/rhi/triquadcube/trianglerenderer.cpp
@@ -3,7 +3,7 @@
 
 #include "trianglerenderer.h"
 #include <QFile>
-#include <QtGui/private/qshader_p.h>
+#include <rhi/qshader.h>
 
 //#define VBUF_IS_DYNAMIC
 
diff --git a/tests/manual/rhi/triquadcube/trianglerenderer.h b/tests/manual/rhi/triquadcube/trianglerenderer.h
index ec591eb2..e6e3d0c0 100644
--- a/tests/manual/rhi/triquadcube/trianglerenderer.h
+++ b/tests/manual/rhi/triquadcube/trianglerenderer.h
@@ -4,7 +4,7 @@
 #ifndef TRIANGLERENDERER_H
 #define TRIANGLERENDERER_H
 
-#include <QtGui/private/qrhi_p.h>
+#include <rhi/qrhi.h>
 
 class TriangleRenderer
 {
diff --git a/tests/manual/rhi/triquadcube/triquadcube.cpp b/tests/manual/rhi/triquadcube/triquadcube.cpp
index 81e62476..3be02917 100644
--- a/tests/manual/rhi/triquadcube/triquadcube.cpp
+++ b/tests/manual/rhi/triquadcube/triquadcube.cpp
@@ -35,7 +35,6 @@ struct {
     QSize lastOutputSize;
     int frameCount = 0;
     QFile profOut;
-    QVarLengthArray<float, 64> gpuFrameTimes;
     QElapsedTimer gpuFrameTimePrintTimer;
 } d;
 
@@ -136,20 +135,8 @@ void Window::customInit()
     // With Vulkan at least we should see some details from the memory allocator.
     qDebug() << m_r->statistics();
 
-    // Every two seconds try printing an average of the gpu frame times.
+    // Every two seconds try printing last known gpu frame time.
     d.gpuFrameTimePrintTimer.start();
-    m_r->addGpuFrameTimeCallback([](float elapsedMs) {
-        d.gpuFrameTimes.append(elapsedMs);
-        if (d.gpuFrameTimePrintTimer.elapsed() > 2000) {
-            float at = 0.0f;
-            for (float t : d.gpuFrameTimes)
-                at += t;
-            at /= d.gpuFrameTimes.count();
-            qDebug() << "Average GPU frame time" << at;
-            d.gpuFrameTimes.clear();
-            d.gpuFrameTimePrintTimer.restart();
-        }
-    });
 }
 
 void Window::customRelease()
@@ -170,6 +157,11 @@ void Window::customRender()
     const QSize outputSize = m_sc->currentPixelSize();
     QRhiCommandBuffer *cb = m_sc->currentFrameCommandBuffer();
 
+    if (d.gpuFrameTimePrintTimer.elapsed() > 2000) {
+        qDebug() << "Last completed GPU frame time" << cb->lastCompletedGpuTime() << "seconds";
+        d.gpuFrameTimePrintTimer.restart();
+    }
+
     if (outputSize != d.lastOutputSize) {
         d.triRenderer.resize(outputSize);
         if (!d.triangleOnly) {
diff --git a/tests/manual/textrendering/codeeditor/codeeditor.qdoc b/tests/manual/textrendering/codeeditor/codeeditor.qdoc
index 80c11db6..f3b417c5 100644
--- a/tests/manual/textrendering/codeeditor/codeeditor.qdoc
+++ b/tests/manual/textrendering/codeeditor/codeeditor.qdoc
@@ -116,7 +116,7 @@
     QPlainTextEdit gives the possibility to have more than one
     selection at the same time. we can set the character format
     (QTextCharFormat) of these selections. We clear the cursors
-    selection before setting the new new
+    selection before setting the new
     QPlainTextEdit::ExtraSelection, else several lines would get
     highlighted when the user selects multiple lines with the mouse.
     \omit ask someone how this works \endomit
diff --git a/tests/manual/wasm/qstdweb/files_main.cpp b/tests/manual/wasm/qstdweb/files_main.cpp
index 4dfae7e1..5c0e0e82 100644
--- a/tests/manual/wasm/qstdweb/files_main.cpp
+++ b/tests/manual/wasm/qstdweb/files_main.cpp
@@ -320,8 +320,8 @@ void FilesTest::selectOneFileWithFileDialog()
         QWASMSUCCESS();
     });
 
-    QWasmLocalFileAccess::openFile(
-        {QStringLiteral("*")}, fileSelectedCallback->get(), acceptFileCallback->get(), fileDataReadyCallback->get());
+    QWasmLocalFileAccess::openFile("*", fileSelectedCallback->get(), acceptFileCallback->get(),
+                                   fileDataReadyCallback->get());
 }
 
 void FilesTest::selectMultipleFilesWithFileDialog()
@@ -377,9 +377,9 @@ void FilesTest::selectMultipleFilesWithFileDialog()
         }
     });
 
-    QWasmLocalFileAccess::openFiles(
-        {QStringLiteral("*")}, QWasmLocalFileAccess::FileSelectMode::MultipleFiles,
-        fileSelectedCallback->get(), acceptFileCallback->get(), fileDataReadyCallback->get());
+    QWasmLocalFileAccess::openFiles("*", QWasmLocalFileAccess::FileSelectMode::MultipleFiles,
+                                    fileSelectedCallback->get(), acceptFileCallback->get(),
+                                    fileDataReadyCallback->get());
 }
 
 void FilesTest::cancelFileDialog()
@@ -398,8 +398,8 @@ void FilesTest::cancelFileDialog()
     auto* acceptFileCallback = Own(new MockCallback<char*, uint64_t, const std::string&>());
     auto* fileDataReadyCallback = Own(new MockCallback<void>());
 
-    QWasmLocalFileAccess::openFile(
-        {QStringLiteral("*")}, fileSelectedCallback->get(), acceptFileCallback->get(), fileDataReadyCallback->get());
+    QWasmLocalFileAccess::openFile("*", fileSelectedCallback->get(), acceptFileCallback->get(),
+                                   fileDataReadyCallback->get());
 }
 
 void FilesTest::rejectFile()
@@ -430,8 +430,8 @@ void FilesTest::rejectFile()
             return nullptr;
         });
 
-    QWasmLocalFileAccess::openFile(
-        {QStringLiteral("*")}, fileSelectedCallback->get(), acceptFileCallback->get(), fileDataReadyCallback->get());
+    QWasmLocalFileAccess::openFile("*", fileSelectedCallback->get(), acceptFileCallback->get(),
+                                   fileDataReadyCallback->get());
 }
 
 void FilesTest::saveFileWithFileDialog()
diff --git a/tests/manual/wasm/qstdweb/qwasmcompositor_main.cpp b/tests/manual/wasm/qstdweb/qwasmcompositor_main.cpp
index 8b5807a8..df6df5f4 100644
--- a/tests/manual/wasm/qstdweb/qwasmcompositor_main.cpp
+++ b/tests/manual/wasm/qstdweb/qwasmcompositor_main.cpp
@@ -7,7 +7,7 @@
 #include <QtGui/qguiapplication.h>
 #include <QtGui/qoffscreensurface.h>
 #include <QtGui/qpa/qwindowsysteminterface.h>
-#include <QtGui/private/qrhigles2_p.h>
+#include <QtGui/rhi/qrhi.h>
 
 #include <qtwasmtestlib.h>
 
@@ -66,7 +66,7 @@ void Window::keyPressEvent(QKeyEvent *)
 
 void Window::init()
 {
-    QRhi::Flags rhiFlags = QRhi::EnableDebugMarkers | QRhi::EnableProfiling;
+    QRhi::Flags rhiFlags = QRhi::EnableDebugMarkers;
 
     m_fallbackSurface.reset(QRhiGles2InitParams::newFallbackSurface());
     QRhiGles2InitParams params;
@@ -94,10 +94,8 @@ public:
     QWasmCompositorTest() : m_window(val::global("window")), m_testSupport(val::object())
     {
         m_window.set("testSupport", m_testSupport);
-        m_testSupport.set("qtAddContainerElement",
-                          emscripten::val::module_property("qtAddContainerElement"));
-        m_testSupport.set("qtRemoveContainerElement",
-                          emscripten::val::module_property("qtRemoveContainerElement"));
+        m_testSupport.set("qtSetContainerElements",
+                          emscripten::val::module_property("qtSetContainerElements"));
     }
 
     ~QWasmCompositorTest() noexcept
@@ -118,12 +116,12 @@ private:
         });
         m_cleanup.emplace_back([]() mutable {
             EM_ASM({
-                testSupport.qtRemoveContainerElement(testSupport.screenElement);
+                testSupport.qtSetContainerElements([]);
                 testSupport.screenElement.parentElement.removeChild(testSupport.screenElement);
             });
         });
 
-        EM_ASM({ testSupport.qtAddContainerElement(testSupport.screenElement); });
+        EM_ASM({ testSupport.qtSetContainerElements([testSupport.screenElement]); });
     }
 
     template<class T>
diff --git a/tests/manual/wasm/qtloader_integration/CMakeLists.txt b/tests/manual/wasm/qtloader_integration/CMakeLists.txt
new file mode 100644
index 00000000..2603a051
--- /dev/null
+++ b/tests/manual/wasm/qtloader_integration/CMakeLists.txt
@@ -0,0 +1,45 @@
+# Copyright (C) 2023 The Qt Company Ltd.
+# SPDX-License-Identifier: BSD-3-Clause
+
+qt_internal_add_manual_test(tst_qtloader_integration
+    GUI
+    SOURCES
+        main.cpp
+    LIBRARIES
+        Qt::Core
+        Qt::Gui
+        Qt::GuiPrivate
+        Qt::Widgets
+)
+
+set_target_properties(tst_qtloader_integration PROPERTIES QT_WASM_EXTRA_EXPORTED_METHODS "ENV")
+
+add_custom_command(
+    TARGET tst_qtloader_integration POST_BUILD
+    COMMAND ${CMAKE_COMMAND} -E copy
+            ${CMAKE_CURRENT_SOURCE_DIR}/tst_qtloader_integration.html
+            ${CMAKE_CURRENT_BINARY_DIR}/tst_qtloader_integration.html)
+
+add_custom_command(
+    TARGET tst_qtloader_integration POST_BUILD
+    COMMAND ${CMAKE_COMMAND} -E copy
+            ${CMAKE_CURRENT_SOURCE_DIR}/../../../../src/plugins/platforms/wasm/qtloader.js
+            ${CMAKE_CURRENT_BINARY_DIR}/qtloader.js)
+
+add_custom_command(
+    TARGET tst_qtloader_integration POST_BUILD
+    COMMAND ${CMAKE_COMMAND} -E copy
+            ${CMAKE_CURRENT_SOURCE_DIR}/../shared/testrunner.js
+            ${CMAKE_CURRENT_BINARY_DIR}/testrunner.js)
+
+add_custom_command(
+    TARGET tst_qtloader_integration POST_BUILD
+    COMMAND ${CMAKE_COMMAND} -E copy
+            ${CMAKE_CURRENT_SOURCE_DIR}/test_body.js
+            ${CMAKE_CURRENT_BINARY_DIR}/test_body.js)
+
+add_custom_command(
+    TARGET tst_qtloader_integration POST_BUILD
+    COMMAND ${CMAKE_COMMAND} -E copy
+            ${CMAKE_CURRENT_SOURCE_DIR}/preload.json
+            ${CMAKE_CURRENT_BINARY_DIR}/preload.json)
diff --git a/tests/manual/wasm/qtloader_integration/main.cpp b/tests/manual/wasm/qtloader_integration/main.cpp
new file mode 100644
index 00000000..ee032e99
--- /dev/null
+++ b/tests/manual/wasm/qtloader_integration/main.cpp
@@ -0,0 +1,171 @@
+// Copyright (C) 2023 The Qt Company Ltd.
+// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
+#include <QtWidgets/QtWidgets>
+
+#include <iostream>
+#include <sstream>
+
+#include <emscripten/bind.h>
+#include <emscripten/val.h>
+#include <emscripten.h>
+
+#include <QtGui/qpa/qplatformscreen.h>
+
+namespace {
+constexpr int ExitValueImmediateReturn = 42;
+constexpr int ExitValueFromExitApp = 22;
+
+std::string screenInformation()
+{
+    auto screens = qGuiApp->screens();
+    std::ostringstream out;
+    out << "[";
+    const char *separator = "";
+    for (const auto &screen : screens) {
+        out << separator;
+        out << "[" << std::to_string(screen->geometry().x()) << ","
+            << std::to_string(screen->geometry().y()) << ","
+            << std::to_string(screen->geometry().width()) << ","
+            << std::to_string(screen->geometry().height()) << "]";
+        separator = ",";
+    }
+    out << "]";
+    return out.str();
+}
+
+std::string logicalDpi()
+{
+    auto screens = qGuiApp->screens();
+    std::ostringstream out;
+    out << "[";
+    const char *separator = "";
+    for (const auto &screen : screens) {
+        out << separator;
+        out << "[" << std::to_string(screen->handle()->logicalDpi().first) << ", "
+            << std::to_string(screen->handle()->logicalDpi().second) << "]";
+        separator = ",";
+    }
+    out << "]";
+    return out.str();
+}
+
+std::string preloadedFiles()
+{
+    QStringList files = QDir("/preload").entryList(QDir::Files);
+    std::ostringstream out;
+    out << "[";
+    const char *separator = "";
+    for (const auto &file : files) {
+        out << separator;
+        out << file.toStdString();
+        separator = ",";
+    }
+    out << "]";
+    return out.str();
+}
+
+void crash()
+{
+    std::abort();
+}
+
+void exitApp()
+{
+    emscripten_force_exit(ExitValueFromExitApp);
+}
+
+void produceOutput()
+{
+    fprintf(stdout, "Sample output!\n");
+}
+
+std::string retrieveArguments()
+{
+    auto arguments = QApplication::arguments();
+    std::ostringstream out;
+    out << "[";
+    const char *separator = "";
+    for (const auto &argument : arguments) {
+        out << separator;
+        out << "'" << argument.toStdString() << "'";
+        separator = ",";
+    }
+    out << "]";
+    return out.str();
+}
+
+std::string getEnvironmentVariable(std::string name) {
+    return QString::fromLatin1(qgetenv(name.c_str())).toStdString();
+}
+} // namespace
+
+class AppWindow : public QObject
+{
+    Q_OBJECT
+public:
+    AppWindow() : m_layout(new QVBoxLayout(&m_ui))
+    {
+        addWidget<QLabel>("Qt Loader integration tests");
+
+        m_ui.setLayout(m_layout);
+    }
+
+    void show() { m_ui.show(); }
+
+    ~AppWindow() = default;
+
+private:
+    template<class T, class... Args>
+    T *addWidget(Args... args)
+    {
+        T *widget = new T(std::forward<Args>(args)..., &m_ui);
+        m_layout->addWidget(widget);
+        return widget;
+    }
+
+    QWidget m_ui;
+    QVBoxLayout *m_layout;
+};
+
+int main(int argc, char **argv)
+{
+    QApplication application(argc, argv);
+    const auto arguments = application.arguments();
+    const bool exitImmediately =
+            std::find(arguments.begin(), arguments.end(), QStringLiteral("--exit-immediately"))
+            != arguments.end();
+    if (exitImmediately)
+        emscripten_force_exit(ExitValueImmediateReturn);
+
+    const bool crashImmediately =
+            std::find(arguments.begin(), arguments.end(), QStringLiteral("--crash-immediately"))
+            != arguments.end();
+    if (crashImmediately)
+        crash();
+
+    const bool noGui = std::find(arguments.begin(), arguments.end(), QStringLiteral("--no-gui"))
+            != arguments.end();
+    if (!noGui) {
+        AppWindow window;
+        window.show();
+        return application.exec();
+    }
+    return application.exec();
+}
+
+EMSCRIPTEN_BINDINGS(qtLoaderIntegrationTest)
+{
+    emscripten::constant("EXIT_VALUE_IMMEDIATE_RETURN", ExitValueImmediateReturn);
+    emscripten::constant("EXIT_VALUE_FROM_EXIT_APP", ExitValueFromExitApp);
+
+    emscripten::function("screenInformation", &screenInformation);
+    emscripten::function("logicalDpi", &logicalDpi);
+    emscripten::function("preloadedFiles", &preloadedFiles);
+    emscripten::function("crash", &crash);
+    emscripten::function("exitApp", &exitApp);
+    emscripten::function("produceOutput", &produceOutput);
+    emscripten::function("retrieveArguments", &retrieveArguments);
+    emscripten::function("getEnvironmentVariable", &getEnvironmentVariable);
+}
+
+#include "main.moc"
diff --git a/tests/manual/wasm/qtloader_integration/preload.json b/tests/manual/wasm/qtloader_integration/preload.json
new file mode 100644
index 00000000..d7e09911
--- /dev/null
+++ b/tests/manual/wasm/qtloader_integration/preload.json
@@ -0,0 +1,10 @@
+[
+    {
+        "source": "qtloader.js",
+        "destination": "/preload/qtloader.js"
+    },
+    {
+        "source": "$QTDIR/qtlogo.svg",
+        "destination": "/preload/qtlogo.svg"
+    }
+]
diff --git a/tests/manual/wasm/qtloader_integration/test_body.js b/tests/manual/wasm/qtloader_integration/test_body.js
new file mode 100644
index 00000000..b75ef36a
--- /dev/null
+++ b/tests/manual/wasm/qtloader_integration/test_body.js
@@ -0,0 +1,469 @@
+// Copyright (C) 2023 The Qt Company Ltd.
+// SPDXLicenseIdentifier: LicenseRefQtCommercial OR GPL3.0only
+
+import { Mock, assert, TestRunner } from './testrunner.js';
+
+export class QtLoaderIntegrationTests
+{
+    #testScreenContainers = []
+
+    async beforeEach()
+    {
+        this.#addScreenContainer('screen-container-0', { width: '200px', height: '300px' });
+    }
+
+    async afterEach()
+    {
+        this.#testScreenContainers.forEach(screenContainer =>
+        {
+            document.body.removeChild(screenContainer);
+        });
+        this.#testScreenContainers = [];
+    }
+
+    async missingConfig()
+    {
+        let caughtException;
+        try {
+            await qtLoad();
+        } catch (e) {
+            caughtException = e;
+        }
+
+        assert.isNotUndefined(caughtException);
+        assert.equal('config is required, expected an object', caughtException.message);
+    }
+
+    async missingQtSection()
+    {
+        let caughtException;
+        try {
+            await qtLoad({});
+        } catch (e) {
+            caughtException = e;
+        }
+
+        assert.isNotUndefined(caughtException);
+        assert.equal(
+            'config.qt is required, expected an object', caughtException.message);
+    }
+
+    async useDefaultOnMissingEntryFunction()
+    {
+        const instance = await qtLoad({ arguments: ['--no-gui'], qt: {}});
+        assert.isNotUndefined(instance);
+    }
+
+    async environmentVariables()
+    {
+        const instance = await qtLoad({
+            qt: {
+                environment: {
+                    variable1: 'value1',
+                    variable2: 'value2'
+                },
+                entryFunction: createQtAppInstance,
+                containerElements: [this.#testScreenContainers[0]]
+            }
+        });
+        assert.isTrue(instance.getEnvironmentVariable('variable1') === 'value1');
+        assert.isTrue(instance.getEnvironmentVariable('variable2') === 'value2');
+    }
+
+    async screenContainerManipulations()
+    {
+        // ... (do other things), then call addContainerElement() to add a new container/screen.
+        // This can happen either before or after load() is called - loader will route the
+        // call to instance when it's ready.
+        this.#addScreenContainer('appcontainer1', { width: '100px', height: '100px' })
+
+        const instance = await qtLoad({
+            qt: {
+                entryFunction: createQtAppInstance,
+                containerElements: this.#testScreenContainers
+            }
+        });
+        {
+            const screenInformation = this.#getScreenInformation(instance);
+
+            assert.equal(2, screenInformation.length);
+            assert.equal(200, screenInformation[0].width);
+            assert.equal(300, screenInformation[0].height);
+            assert.equal(100, screenInformation[1].width);
+            assert.equal(100, screenInformation[1].height);
+        }
+
+        this.#addScreenContainer('appcontainer2', { width: '234px', height: '99px' })
+        instance.qtSetContainerElements(this.#testScreenContainers);
+
+        {
+            const screenInformation = this.#getScreenInformation(instance);
+
+            assert.equal(3, screenInformation.length);
+            assert.equal(200, screenInformation[0].width);
+            assert.equal(300, screenInformation[0].height);
+            assert.equal(100, screenInformation[1].width);
+            assert.equal(100, screenInformation[1].height);
+            assert.equal(234, screenInformation[2].width);
+            assert.equal(99, screenInformation[2].height);
+        }
+
+        document.body.removeChild(this.#testScreenContainers.splice(2, 1)[0]);
+        instance.qtSetContainerElements(this.#testScreenContainers);
+        {
+            const screenInformation = this.#getScreenInformation(instance);
+
+            assert.equal(2, screenInformation.length);
+            assert.equal(200, screenInformation[0].width);
+            assert.equal(300, screenInformation[0].height);
+            assert.equal(100, screenInformation[1].width);
+            assert.equal(100, screenInformation[1].height);
+        }
+    }
+
+    async primaryScreenIsAlwaysFirst()
+    {
+        const instance = await qtLoad({
+            qt: {
+                entryFunction: createQtAppInstance,
+                containerElements: this.#testScreenContainers,
+            }
+        });
+        this.#addScreenContainer(
+            'appcontainer3', { width: '12px', height: '24px' },
+            container => this.#testScreenContainers.splice(0, 0, container));
+        this.#addScreenContainer(
+            'appcontainer4', { width: '34px', height: '68px' },
+            container => this.#testScreenContainers.splice(1, 0, container));
+
+        instance.qtSetContainerElements(this.#testScreenContainers);
+        {
+            const screenInformation = this.#getScreenInformation(instance);
+
+            assert.equal(3, screenInformation.length);
+            // The primary screen (at position 0) is always at 0
+            assert.equal(12, screenInformation[0].width);
+            assert.equal(24, screenInformation[0].height);
+            // Other screens are pushed at the back
+            assert.equal(200, screenInformation[1].width);
+            assert.equal(300, screenInformation[1].height);
+            assert.equal(34, screenInformation[2].width);
+            assert.equal(68, screenInformation[2].height);
+        }
+
+        this.#testScreenContainers.forEach(screenContainer =>
+        {
+            document.body.removeChild(screenContainer);
+        });
+        this.#testScreenContainers = [
+            this.#addScreenContainer('appcontainer5', { width: '11px', height: '12px' }),
+            this.#addScreenContainer('appcontainer6', { width: '13px', height: '14px' }),
+        ];
+
+        instance.qtSetContainerElements(this.#testScreenContainers);
+        {
+            const screenInformation = this.#getScreenInformation(instance);
+
+            assert.equal(2, screenInformation.length);
+            assert.equal(11, screenInformation[0].width);
+            assert.equal(12, screenInformation[0].height);
+            assert.equal(13, screenInformation[1].width);
+            assert.equal(14, screenInformation[1].height);
+        }
+    }
+
+    async multipleInstances()
+    {
+        // Fetch/Compile the module once; reuse for each instance. This is also if the page wants to
+        // initiate the .wasm file download fetch as early as possible, before the browser has
+        // finished fetching and parsing testapp.js and qtloader.js
+        const module = WebAssembly.compileStreaming(fetch('tst_qtloader_integration.wasm'));
+
+        const instances = await Promise.all([1, 2, 3].map(i => qtLoad({
+            qt: {
+                entryFunction: createQtAppInstance,
+                containerElements: [this.#addScreenContainer(`screen-container-${i}`, {
+                    width: `${i * 10}px`,
+                    height: `${i * 10}px`,
+                })],
+                module,
+            }
+        })));
+        // Confirm the identity of instances by querying their screen widths and heights
+        {
+            const screenInformation = this.#getScreenInformation(instances[0]);
+            console.log();
+            assert.equal(1, screenInformation.length);
+            assert.equal(10, screenInformation[0].width);
+            assert.equal(10, screenInformation[0].height);
+        }
+        {
+            const screenInformation = this.#getScreenInformation(instances[1]);
+            assert.equal(1, screenInformation.length);
+            assert.equal(20, screenInformation[0].width);
+            assert.equal(20, screenInformation[0].height);
+        }
+        {
+            const screenInformation = this.#getScreenInformation(instances[2]);
+            assert.equal(1, screenInformation.length);
+            assert.equal(30, screenInformation[0].width);
+            assert.equal(30, screenInformation[0].height);
+        }
+    }
+
+    async consoleMode()
+    {
+        // 'Console mode' for autotesting type scenarios
+        let accumulatedStdout = '';
+        const instance = await qtLoad({
+            arguments: ['--no-gui'],
+            print: output =>
+            {
+                accumulatedStdout += output;
+            },
+            qt: {
+                entryFunction: createQtAppInstance,
+            }
+        });
+
+        this.#callTestInstanceApi(instance, 'produceOutput');
+        assert.equal('Sample output!', accumulatedStdout);
+    }
+
+    async modulePromiseProvided()
+    {
+        await qtLoad({
+            qt: {
+                entryFunction: createQtAppInstance,
+                containerElements: [this.#testScreenContainers[0]],
+                module: WebAssembly.compileStreaming(
+                    fetch('tst_qtloader_integration.wasm'))
+            }
+        });
+    }
+
+    async moduleProvided()
+    {
+        await qtLoad({
+            qt: {
+                entryFunction: createQtAppInstance,
+                containerElements: [this.#testScreenContainers[0]],
+                module: await WebAssembly.compileStreaming(
+                    fetch('tst_qtloader_integration.wasm'))
+            }
+        });
+    }
+
+    async arguments()
+    {
+        const instance = await qtLoad({
+            arguments: ['--no-gui', 'arg1', 'other', 'yetanotherarg'],
+            qt: {
+                entryFunction: createQtAppInstance,
+            }
+        });
+        const args = this.#callTestInstanceApi(instance, 'retrieveArguments');
+        assert.equal(5, args.length);
+        assert.isTrue('arg1' === args[2]);
+        assert.equal('other', args[3]);
+        assert.equal('yetanotherarg', args[4]);
+    }
+
+    async moduleProvided_exceptionThrownInFactory()
+    {
+        let caughtException;
+        try {
+            await qtLoad({
+                qt: {
+                    entryFunction: createQtAppInstance,
+                    containerElements: [this.#testScreenContainers[0]],
+                    module: Promise.reject(new Error('Failed to load')),
+                }
+            });
+        } catch (e) {
+            caughtException = e;
+        }
+        assert.isTrue(caughtException !== undefined);
+        assert.equal('Failed to load', caughtException.message);
+    }
+
+    async abort()
+    {
+        const onExitMock = new Mock();
+        const instance = await qtLoad({
+            arguments: ['--no-gui'],
+            qt: {
+                onExit: onExitMock,
+                entryFunction: createQtAppInstance,
+            }
+        });
+        try {
+            instance.crash();
+        } catch { }
+        assert.equal(1, onExitMock.calls.length);
+        const exitStatus = onExitMock.calls[0][0];
+        assert.isTrue(exitStatus.crashed);
+        assert.isUndefined(exitStatus.code);
+        assert.isNotUndefined(exitStatus.text);
+    }
+
+    async abortImmediately()
+    {
+        const onExitMock = new Mock();
+        let caughtException;
+        try {
+            await qtLoad({
+                arguments: ['--no-gui', '--crash-immediately'],
+                qt: {
+                    onExit: onExitMock,
+                    entryFunction: createQtAppInstance,
+                }
+            });
+        } catch (e) {
+            caughtException = e;
+        }
+
+        assert.isUndefined(caughtException);
+        assert.equal(1, onExitMock.calls.length);
+        const exitStatus = onExitMock.calls[0][0];
+        assert.isTrue(exitStatus.crashed);
+        assert.isUndefined(exitStatus.code);
+        assert.isNotUndefined(exitStatus.text);
+    }
+
+    async userAbortCallbackCalled()
+    {
+        const onAbortMock = new Mock();
+        let instance = await qtLoad({
+            arguments: ['--no-gui'],
+            onAbort: onAbortMock,
+            qt: {
+                entryFunction: createQtAppInstance,
+            }
+        });
+        try {
+            instance.crash();
+        } catch (e) {
+            // emscripten throws an 'Aborted' error here, which we ignore for the sake of the test
+        }
+        assert.equal(1, onAbortMock.calls.length);
+    }
+
+    async exit()
+    {
+        const onExitMock = new Mock();
+        let instance = await qtLoad({
+            arguments: ['--no-gui'],
+            qt: {
+                onExit: onExitMock,
+                entryFunction: createQtAppInstance,
+            }
+        });
+        // The module is running. onExit should not have been called.
+        assert.equal(0, onExitMock.calls.length);
+        try {
+            instance.exitApp();
+        } catch (e) {
+            // emscripten throws a 'Runtime error: unreachable' error here. We ignore it for the
+            // sake of the test.
+        }
+        assert.equal(1, onExitMock.calls.length);
+        const exitStatus = onExitMock.calls[0][0];
+        assert.isFalse(exitStatus.crashed);
+        assert.equal(instance.EXIT_VALUE_FROM_EXIT_APP, exitStatus.code);
+        assert.isUndefined(exitStatus.text);
+    }
+
+    async exitImmediately()
+    {
+        const onExitMock = new Mock();
+        const instance = await qtLoad({
+            arguments: ['--no-gui', '--exit-immediately'],
+            qt: {
+                onExit: onExitMock,
+                entryFunction: createQtAppInstance,
+            }
+        });
+        assert.equal(1, onExitMock.calls.length);
+
+        const exitStatusFromOnExit = onExitMock.calls[0][0];
+
+        assert.isFalse(exitStatusFromOnExit.crashed);
+        assert.equal(instance.EXIT_VALUE_IMMEDIATE_RETURN, exitStatusFromOnExit.code);
+        assert.isUndefined(exitStatusFromOnExit.text);
+    }
+
+    async userQuitCallbackCalled()
+    {
+        const quitMock = new Mock();
+        let instance = await qtLoad({
+            arguments: ['--no-gui'],
+            quit: quitMock,
+            qt: {
+                entryFunction: createQtAppInstance,
+            }
+        });
+        try {
+            instance.exitApp();
+        } catch (e) {
+            // emscripten throws a 'Runtime error: unreachable' error here. We ignore it for the
+            // sake of the test.
+        }
+        assert.equal(1, quitMock.calls.length);
+        const [exitCode, exception] = quitMock.calls[0];
+        assert.equal(instance.EXIT_VALUE_FROM_EXIT_APP, exitCode);
+        assert.equal('ExitStatus', exception.name);
+    }
+
+    async preloadFiles()
+    {
+        const instance = await qtLoad({
+            arguments: ["--no-gui"],
+            qt: {
+                preload: ['preload.json'],
+                qtdir: '.',
+            }
+        });
+        const preloadedFiles = instance.preloadedFiles();
+        // Verify that preloaded file list matches files specified in preload.json
+        assert.equal("[qtloader.js,qtlogo.svg]", preloadedFiles);
+    }
+
+    #callTestInstanceApi(instance, apiName)
+    {
+        return eval(instance[apiName]());
+    }
+
+    #getScreenInformation(instance)
+    {
+        return this.#callTestInstanceApi(instance, 'screenInformation').map(elem => ({
+            x: elem[0],
+            y: elem[1],
+            width: elem[2],
+            height: elem[3],
+        }));
+    }
+
+    #addScreenContainer(id, style, inserter)
+    {
+        const container = (() =>
+        {
+            const container = document.createElement('div');
+            container.id = id;
+            container.style.width = style.width;
+            container.style.height = style.height;
+            document.body.appendChild(container);
+            return container;
+        })();
+        inserter ? inserter(container) : this.#testScreenContainers.push(container);
+        return container;
+    }
+}
+
+(async () =>
+{
+    const runner = new TestRunner(new QtLoaderIntegrationTests(), {
+        timeoutSeconds: 10
+    });
+    await runner.runAll();
+})();
diff --git a/tests/manual/wasm/qtloader_integration/tst_qtloader_integration.html b/tests/manual/wasm/qtloader_integration/tst_qtloader_integration.html
new file mode 100644
index 00000000..7aa7528a
--- /dev/null
+++ b/tests/manual/wasm/qtloader_integration/tst_qtloader_integration.html
@@ -0,0 +1,13 @@
+<!doctype html>
+<html lang="en-us">
+
+<head>
+    <title>tst_qtloader_integration</title>
+    <script src='tst_qtloader_integration.js'></script>
+    <script src="qtloader.js" defer></script>
+    <script type="module" src="test_body.js" defer></script>
+</head>
+
+<body></body>
+
+</html>
diff --git a/tests/manual/wasm/qwasmwindow/CMakeLists.txt b/tests/manual/wasm/qwasmwindow/CMakeLists.txt
new file mode 100644
index 00000000..b3377345
--- /dev/null
+++ b/tests/manual/wasm/qwasmwindow/CMakeLists.txt
@@ -0,0 +1,36 @@
+qt_internal_add_manual_test(qwasmwindow_harness
+    SOURCES
+        qwasmwindow_harness.cpp
+    LIBRARIES
+        Qt::Core
+        Qt::CorePrivate
+        Qt::GuiPrivate
+)
+
+add_custom_command(
+    TARGET qwasmwindow_harness POST_BUILD
+    COMMAND ${CMAKE_COMMAND} -E copy
+            ${CMAKE_CURRENT_SOURCE_DIR}/qwasmwindow_harness.html
+            ${CMAKE_CURRENT_BINARY_DIR}/qwasmwindow_harness.html
+)
+
+add_custom_command(
+    TARGET qwasmwindow_harness POST_BUILD
+    COMMAND ${CMAKE_COMMAND} -E copy
+            ${CMAKE_CURRENT_SOURCE_DIR}/qwasmwindow.py
+            ${CMAKE_CURRENT_BINARY_DIR}/qwasmwindow.py
+)
+
+add_custom_command(
+    TARGET qwasmwindow_harness POST_BUILD
+    COMMAND ${CMAKE_COMMAND} -E copy
+            ${CMAKE_CURRENT_SOURCE_DIR}/run.sh
+            ${CMAKE_CURRENT_BINARY_DIR}/run.sh
+)
+
+add_custom_command(
+    TARGET qwasmwindow_harness POST_BUILD
+    COMMAND ${CMAKE_COMMAND} -E copy
+            ${CMAKE_CURRENT_SOURCE_DIR}/../../../../util/wasm/qtwasmserver/qtwasmserver.py
+            ${CMAKE_CURRENT_BINARY_DIR}/qtwasmserver.py
+)
diff --git a/tests/manual/wasm/qwasmwindow/qwasmwindow.py b/tests/manual/wasm/qwasmwindow/qwasmwindow.py
new file mode 100644
index 00000000..a80e394c
--- /dev/null
+++ b/tests/manual/wasm/qwasmwindow/qwasmwindow.py
@@ -0,0 +1,445 @@
+# Copyright (C) 2022 The Qt Company Ltd.
+# SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only WITH Qt-GPL-exception-1.0
+
+from selenium.webdriver import Chrome
+from selenium.webdriver.common.actions.action_builder import ActionBuilder
+from selenium.webdriver.common.actions.pointer_actions import PointerActions
+from selenium.webdriver.common.actions.interaction import POINTER_TOUCH
+from selenium.webdriver.common.actions.pointer_input import PointerInput
+from selenium.webdriver.common.by import By
+from selenium.webdriver.support.expected_conditions import presence_of_element_located
+from selenium.webdriver.support.ui import WebDriverWait
+from selenium.webdriver.common.action_chains import ActionChains
+
+import unittest
+from enum import Enum, auto
+
+class WidgetTestCase(unittest.TestCase):
+    def setUp(self):
+        self._driver = Chrome()
+        self._driver.get(
+            'http://localhost:8001/qwasmwindow_harness.html')
+        self._test_sandbox_element = WebDriverWait(self._driver, 30).until(
+            presence_of_element_located((By.ID, 'test-sandbox'))
+        )
+        self.addTypeEqualityFunc(Rect, assert_rects_equal)
+
+    def test_window_resizing(self):
+        defaultWindowMinSize = 100
+        screen = Screen(self._driver, ScreenPosition.FIXED,
+                       x=0, y=0, width=600, height=600)
+        window = Window(screen, x=100, y=100, width=200, height=200)
+        self.assertEqual(window.rect, Rect(x=100, y=100, width=200, height=200))
+
+        window.drag(Handle.TOP_LEFT, direction=UP(10) + LEFT(10))
+        self.assertEqual(window.rect, Rect(x=90, y=90, width=210, height=210))
+
+        window.drag(Handle.TOP, direction=DOWN(10) + LEFT(100))
+        self.assertEqual(window.rect, Rect(x=90, y=100, width=210, height=200))
+
+        window.drag(Handle.TOP_RIGHT, direction=UP(5) + LEFT(5))
+        self.assertEqual(window.rect, Rect(x=90, y=95, width=205, height=205))
+
+        window.drag(Handle.RIGHT, direction=DOWN(100) + RIGHT(5))
+        self.assertEqual(window.rect, Rect(x=90, y=95, width=210, height=205))
+
+        window.drag(Handle.BOTTOM_RIGHT, direction=UP(5) + LEFT(10))
+        self.assertEqual(window.rect, Rect(x=90, y=95, width=200, height=200))
+
+        window.drag(Handle.BOTTOM, direction=DOWN(20) + LEFT(100))
+        self.assertEqual(window.rect, Rect(x=90, y=95, width=200, height=220))
+
+        window.drag(Handle.BOTTOM_LEFT, direction=DOWN(10) + LEFT(10))
+        self.assertEqual(window.rect, Rect(x=80, y=95, width=210, height=230))
+
+        window.drag(Handle.LEFT, direction=DOWN(343) + LEFT(5))
+        self.assertEqual(window.rect, Rect(x=75, y=95, width=215, height=230))
+
+        window.drag(Handle.BOTTOM_RIGHT, direction=UP(150) + LEFT(150))
+        self.assertEqual(window.rect, Rect(x=75, y=95, width=defaultWindowMinSize, height=defaultWindowMinSize))
+
+    def test_cannot_resize_over_screen_top_edge(self):
+        screen = Screen(self._driver, ScreenPosition.FIXED,
+                       x=200, y=200, width=300, height=300)
+        window = Window(screen, x=300, y=300, width=100, height=100)
+        self.assertEqual(window.rect, Rect(x=300, y=300, width=100, height=100))
+        frame_rect_before_resize = window.frame_rect
+
+        window.drag(Handle.TOP, direction=UP(200))
+        self.assertEqual(window.rect.x, 300)
+        self.assertEqual(window.frame_rect.y, screen.rect.y)
+        self.assertEqual(window.rect.width, 100)
+        self.assertEqual(window.frame_rect.y + window.frame_rect.height,
+                         frame_rect_before_resize.y + frame_rect_before_resize.height)
+
+    def test_window_move(self):
+        screen = Screen(self._driver, ScreenPosition.FIXED,
+                       x=200, y=200, width=300, height=300)
+        window = Window(screen, x=300, y=300, width=100, height=100)
+        self.assertEqual(window.rect, Rect(x=300, y=300, width=100, height=100))
+
+        window.drag(Handle.TOP_WINDOW_BAR, direction=UP(30))
+        self.assertEqual(window.rect, Rect(x=300, y=270, width=100, height=100))
+
+        window.drag(Handle.TOP_WINDOW_BAR, direction=RIGHT(50))
+        self.assertEqual(window.rect, Rect(x=350, y=270, width=100, height=100))
+
+        window.drag(Handle.TOP_WINDOW_BAR, direction=DOWN(30) + LEFT(70))
+        self.assertEqual(window.rect, Rect(x=280, y=300, width=100, height=100))
+
+    def test_screen_limits_window_moves(self):
+        screen = Screen(self._driver, ScreenPosition.RELATIVE,
+                       x=200, y=200, width=300, height=300)
+        window = Window(screen, x=300, y=300, width=100, height=100)
+        self.assertEqual(window.rect, Rect(x=300, y=300, width=100, height=100))
+
+        window.drag(Handle.TOP_WINDOW_BAR, direction=LEFT(300))
+        self.assertEqual(window.frame_rect.x, screen.rect.x - window.frame_rect.width / 2)
+
+    def test_screen_in_scroll_container_limits_window_moves(self):
+        screen = Screen(self._driver, ScreenPosition.IN_SCROLL_CONTAINER,
+                        x=200, y=2000, width=300, height=300,
+                        container_width=500, container_height=7000)
+        screen.scroll_to()
+        window = Window(screen, x=300, y=2100, width=100, height=100)
+        self.assertEqual(window.rect, Rect(x=300, y=2100, width=100, height=100))
+
+        window.drag(Handle.TOP_WINDOW_BAR, direction=LEFT(300))
+        self.assertEqual(window.frame_rect.x, screen.rect.x - window.frame_rect.width / 2)
+
+    def test_maximize(self):
+        screen = Screen(self._driver, ScreenPosition.RELATIVE,
+                        x=200, y=200, width=300, height=300)
+        window = Window(screen, x=300, y=300, width=100, height=100, title='Maximize')
+        self.assertEqual(window.rect, Rect(x=300, y=300, width=100, height=100))
+
+        window.maximize()
+        self.assertEqual(window.frame_rect, Rect(x=200, y=200, width=300, height=300))
+
+    def test_multitouch_window_move(self):
+        screen = Screen(self._driver, ScreenPosition.FIXED,
+                        x=0, y=0, width=800, height=800)
+        windows = [Window(screen, x=50, y=50, width=100, height=100, title='First'),
+                   Window(screen, x=400, y=400, width=100, height=100, title='Second'),
+                   Window(screen, x=50, y=400, width=100, height=100, title='Third')]
+        self.assertEqual(windows[0].rect, Rect(x=50, y=50, width=100, height=100))
+        self.assertEqual(windows[1].rect, Rect(x=400, y=400, width=100, height=100))
+        self.assertEqual(windows[2].rect, Rect(x=50, y=400, width=100, height=100))
+
+        actions = [TouchDragAction(origin=windows[0].at(Handle.TOP_WINDOW_BAR), direction=DOWN(20) + RIGHT(20)),
+                   TouchDragAction(origin=windows[1].at(Handle.TOP_WINDOW_BAR), direction=DOWN(20) + LEFT(20)),
+                   TouchDragAction(origin=windows[2].at(Handle.TOP_WINDOW_BAR), direction=UP(20) + RIGHT(20))]
+        perform_touch_drag_actions(actions)
+        self.assertEqual(windows[0].rect, Rect(x=70, y=70, width=100, height=100))
+        self.assertEqual(windows[1].rect, Rect(x=380, y=420, width=100, height=100))
+        self.assertEqual(windows[2].rect, Rect(x=70, y=380, width=100, height=100))
+
+    def test_multitouch_window_resize(self):
+        screen = Screen(self._driver, ScreenPosition.FIXED,
+                        x=0, y=0, width=800, height=800)
+        windows = [Window(screen, x=50, y=50, width=150, height=150, title='First'),
+                   Window(screen, x=400, y=400, width=150, height=150, title='Second'),
+                   Window(screen, x=50, y=400, width=150, height=150, title='Third')]
+        self.assertEqual(windows[0].rect, Rect(x=50, y=50, width=150, height=150))
+        self.assertEqual(windows[1].rect, Rect(x=400, y=400, width=150, height=150))
+        self.assertEqual(windows[2].rect, Rect(x=50, y=400, width=150, height=150))
+
+        actions = [TouchDragAction(origin=windows[0].at(Handle.TOP_LEFT), direction=DOWN(20) + RIGHT(20)),
+                   TouchDragAction(origin=windows[1].at(Handle.TOP), direction=DOWN(20) + LEFT(20)),
+                   TouchDragAction(origin=windows[2].at(Handle.BOTTOM_RIGHT), direction=UP(20) + RIGHT(20))]
+        perform_touch_drag_actions(actions)
+        self.assertEqual(windows[0].rect, Rect(x=70, y=70, width=130, height=130))
+        self.assertEqual(windows[1].rect, Rect(x=400, y=420, width=150, height=130))
+        self.assertEqual(windows[2].rect, Rect(x=50, y=400, width=170, height=130))
+
+    def tearDown(self):
+        self._driver.quit()
+
+
+class ScreenPosition(Enum):
+    FIXED = auto()
+    RELATIVE = auto()
+    IN_SCROLL_CONTAINER = auto()
+
+
+class Screen:
+    def __init__(self, driver, positioning, x, y, width, height, container_width=0, container_height=0):
+        self.driver = driver
+        self.x = x
+        self.y = y
+        self.width = width
+        self.height = height
+        if positioning == ScreenPosition.FIXED:
+            command = f'initializeScreenWithFixedPosition({self.x}, {self.y}, {self.width}, {self.height})'
+        elif positioning == ScreenPosition.RELATIVE:
+            command = f'initializeScreenWithRelativePosition({self.x}, {self.y}, {self.width}, {self.height})'
+        elif positioning == ScreenPosition.IN_SCROLL_CONTAINER:
+            command = f'initializeScreenInScrollContainer({container_width}, {container_height}, {self.x}, {self.y}, {self.width}, {self.height})'
+        self.element = self.driver.execute_script(
+            f'''
+                return testSupport.{command};
+            '''
+        )
+        if positioning == ScreenPosition.IN_SCROLL_CONTAINER:
+            self.element = self.element[1]
+
+        screen_information = call_instance_function(
+            self.driver, 'screenInformation')
+        if len(screen_information) != 1:
+            raise AssertionError('Expecting exactly one screen_information!')
+        self.screen_info = screen_information[0]
+
+    @property
+    def rect(self):
+        self.screen_info = call_instance_function(
+            self.driver, 'screenInformation')[0]
+        geo = self.screen_info['geometry']
+        return Rect(geo['x'], geo['y'], geo['width'], geo['height'])
+
+    def scroll_to(self):
+        ActionChains(self.driver).scroll_to_element(self.element).perform()
+
+
+class Window:
+    def __init__(self, screen, x, y, width, height, title='title'):
+        self.driver = screen.driver
+        self.title = title
+        self.driver.execute_script(
+            f'''
+                instance.createWindow({x}, {y}, {width}, {height}, '{screen.screen_info["name"]}', '{title}');
+            '''
+        )
+        self._window_id = self.__window_information()['id']
+        self.element = screen.element.shadow_root.find_element(
+            By.CSS_SELECTOR, f'#qt-window-{self._window_id}')
+
+    def __window_information(self):
+        information = call_instance_function(self.driver, 'windowInformation')
+        return next(filter(lambda e: e['title'] == self.title, information))
+
+    @property
+    def rect(self):
+        geo = self.__window_information()["geometry"]
+        return Rect(geo['x'], geo['y'], geo['width'], geo['height'])
+
+    @property
+    def frame_rect(self):
+        geo = self.__window_information()["frameGeometry"]
+        return Rect(geo['x'], geo['y'], geo['width'], geo['height'])
+
+    def drag(self, handle, direction):
+        ActionChains(self.driver)                                                        \
+            .move_to_element_with_offset(self.element, *self.at(handle)['offset'])       \
+            .click_and_hold()                                                            \
+            .move_by_offset(*translate_direction_to_offset(direction))                   \
+            .release().perform()
+
+    def maximize(self):
+        maximize_button = self.element.find_element(
+            By.CSS_SELECTOR, f'.title-bar :nth-child(6)')
+        maximize_button.click()
+
+    def at(self, handle):
+        """ Returns (window, offset) for given handle on window"""
+        width = self.frame_rect.width
+        height = self.frame_rect.height
+
+        if handle == Handle.TOP_LEFT:
+            offset = (-width/2, -height/2)
+        elif handle == Handle.TOP:
+            offset = (0, -height/2)
+        elif handle == Handle.TOP_RIGHT:
+            offset = (width/2, -height/2)
+        elif handle == Handle.LEFT:
+            offset = (-width/2, 0)
+        elif handle == Handle.RIGHT:
+            offset = (width/2, 0)
+        elif handle == Handle.BOTTOM_LEFT:
+            offset = (-width/2, height/2)
+        elif handle == Handle.BOTTOM:
+            offset = (0, height/2)
+        elif handle == Handle.BOTTOM_RIGHT:
+            offset = (width/2, height/2)
+        elif handle == Handle.TOP_WINDOW_BAR:
+            frame_top = self.frame_rect.y
+            client_area_top = self.rect.y
+            top_frame_bar_width = client_area_top - frame_top
+            offset = (0, -height/2 + top_frame_bar_width/2)
+        return {'window': self, 'offset': offset}
+
+
+class TouchDragAction:
+    def __init__(self, origin, direction):
+        self.origin = origin
+        self.direction = direction
+        self.step = 2
+
+
+def perform_touch_drag_actions(actions):
+    driver = actions[0].origin['window'].driver
+    touch_action_builder = ActionBuilder(driver)
+    pointers = [PointerActions(source=touch_action_builder.add_pointer_input(
+        POINTER_TOUCH, f'touch_input_{i}')) for i in range(len(actions))]
+
+    for action, pointer in zip(actions, pointers):
+        pointer.move_to(
+            action.origin['window'].element, *action.origin['offset'])
+        pointer.pointer_down(width=10, height=10, pressure=1)
+    moves = [translate_direction_to_offset(a.direction) for a in actions]
+
+    def movement_finished():
+        for move in moves:
+            if move != (0, 0):
+                return False
+        return True
+
+    def sign(num):
+        if num > 0:
+            return 1
+        elif num < 0:
+            return -1
+        return 0
+
+    while not movement_finished():
+        for i in range(len(actions)):
+            pointer = pointers[i]
+            move = moves[i]
+            step = actions[i].step
+
+            current_move = (
+                min(abs(move[0]), step) * sign(move[0]), min(abs(move[1]), step) * sign(move[1]))
+            moves[i] = (move[0] - current_move[0], move[1] - current_move[1])
+            pointer.move_by(current_move[0],
+                            current_move[1], width=10, height=10)
+    for pointer in pointers:
+        pointer.pointer_up()
+
+    touch_action_builder.perform()
+
+
+class TouchDragAction:
+    def __init__(self, origin, direction):
+        self.origin = origin
+        self.direction = direction
+        self.step = 2
+
+
+def perform_touch_drag_actions(actions):
+    driver = actions[0].origin['window'].driver
+    touch_action_builder = ActionBuilder(driver)
+    pointers = [PointerActions(source=touch_action_builder.add_pointer_input(
+        POINTER_TOUCH, f'touch_input_{i}')) for i in range(len(actions))]
+
+    for action, pointer in zip(actions, pointers):
+        pointer.move_to(
+            action.origin['window'].element, *action.origin['offset'])
+        pointer.pointer_down(width=10, height=10, pressure=1)
+
+    moves = [translate_direction_to_offset(a.direction) for a in actions]
+
+    def movement_finished():
+        for move in moves:
+            if move != (0, 0):
+                return False
+        return True
+
+    def sign(num):
+        if num > 0:
+            return 1
+        elif num < 0:
+            return -1
+        return 0
+
+    while not movement_finished():
+        for i in range(len(actions)):
+            pointer = pointers[i]
+            move = moves[i]
+            step = actions[i].step
+
+            current_move = (
+                min(abs(move[0]), step) * sign(move[0]), min(abs(move[1]), step) * sign(move[1]))
+            moves[i] = (move[0] - current_move[0], move[1] - current_move[1])
+            pointer.move_by(current_move[0],
+                            current_move[1], width=10, height=10)
+
+    for pointer in pointers:
+        pointer.pointer_up()
+
+    touch_action_builder.perform()
+
+
+def translate_direction_to_offset(direction):
+    return (direction.val[1] - direction.val[3], direction.val[2] - direction.val[0])
+
+
+def call_instance_function(driver, name):
+    return driver.execute_script(
+        f'''let result;
+            window.{name}Callback = data => result = data;
+            instance.{name}();
+            return eval(result);''')
+
+
+class Direction:
+    def __init__(self):
+        self.val = (0, 0, 0, 0)
+
+    def __init__(self, north, east, south, west):
+        self.val = (north, east, south, west)
+
+    def __add__(self, other):
+        return Direction(self.val[0] + other.val[0],
+                         self.val[1] + other.val[1],
+                         self.val[2] + other.val[2],
+                         self.val[3] + other.val[3])
+
+
+class UP(Direction):
+    def __init__(self, step=1):
+        self.val = (step, 0, 0, 0)
+
+
+class RIGHT(Direction):
+    def __init__(self, step=1):
+        self.val = (0, step, 0, 0)
+
+
+class DOWN(Direction):
+    def __init__(self, step=1):
+        self.val = (0, 0, step, 0)
+
+
+class LEFT(Direction):
+    def __init__(self, step=1):
+        self.val = (0, 0, 0, step)
+
+
+class Handle(Enum):
+    TOP_LEFT = auto()
+    TOP = auto()
+    TOP_RIGHT = auto()
+    LEFT = auto()
+    RIGHT = auto()
+    BOTTOM_LEFT = auto()
+    BOTTOM = auto()
+    BOTTOM_RIGHT = auto()
+    TOP_WINDOW_BAR = auto()
+
+
+class Rect:
+    def __init__(self, x, y, width, height) -> None:
+        self.x = x
+        self.y = y
+        self.width = width
+        self.height = height
+
+    def __str__(self):
+        return f'(x: {self.x}, y: {self.y}, width: {self.width}, height: {self.height})'
+
+
+def assert_rects_equal(geo1, geo2, msg=None):
+    if geo1.x != geo2.x or geo1.y != geo2.y or geo1.width != geo2.width or geo1.height != geo2.height:
+        raise AssertionError(f'Rectangles not equal: \n{geo1} \nvs \n{geo2}')
+
+
+unittest.main()
diff --git a/tests/manual/wasm/qwasmwindow/qwasmwindow_harness.cpp b/tests/manual/wasm/qwasmwindow/qwasmwindow_harness.cpp
new file mode 100644
index 00000000..3a8f0693
--- /dev/null
+++ b/tests/manual/wasm/qwasmwindow/qwasmwindow_harness.cpp
@@ -0,0 +1,149 @@
+// Copyright (C) 2022 The Qt Company Ltd.
+// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only WITH Qt-GPL-exception-1.0
+
+#include <QtCore/QEvent>
+#include <QtCore/qobject.h>
+#include <QtCore/qregularexpression.h>
+#include <QtGui/qscreen.h>
+#include <QtGui/qwindow.h>
+#include <QtGui/qguiapplication.h>
+
+#include <emscripten.h>
+#include <emscripten/bind.h>
+#include <emscripten/val.h>
+
+#include <memory>
+#include <sstream>
+#include <vector>
+
+class DeleteOnCloseWindow : public QWindow
+{
+    Q_OBJECT
+
+private:
+    void closeEvent(QCloseEvent *ev) override
+    {
+        Q_UNUSED(ev);
+        delete this;
+    }
+};
+
+using namespace emscripten;
+
+std::string toJSArray(const std::vector<std::string> &elements)
+{
+    std::ostringstream out;
+    out << "[";
+    bool comma = false;
+    for (const auto &element : elements) {
+        out << (comma ? "," : "");
+        out << element;
+        comma = true;
+    }
+    out << "]";
+    return out.str();
+}
+
+std::string toJSString(const QString &qstring)
+{
+    Q_ASSERT_X(([qstring]() {
+                   static QRegularExpression unescapedQuoteRegex(R"re((?:^|[^\\])')re");
+                   return qstring.indexOf(unescapedQuoteRegex) == -1;
+               })(),
+               Q_FUNC_INFO, "Unescaped single quotes found");
+    return "'" + qstring.toStdString() + "'";
+}
+
+std::string rectToJSObject(const QRect &rect)
+{
+    std::ostringstream out;
+    out << "{"
+        << "  x: " << std::to_string(rect.x()) << ","
+        << "  y: " << std::to_string(rect.y()) << ","
+        << "  width: " << std::to_string(rect.width()) << ","
+        << "  height: " << std::to_string(rect.height()) << "}";
+    return out.str();
+}
+
+std::string screenToJSObject(const QScreen &screen)
+{
+    std::ostringstream out;
+    out << "{"
+        << "  name: " << toJSString(screen.name()) << ","
+        << "  geometry: " << rectToJSObject(screen.geometry()) << "}";
+    return out.str();
+}
+
+std::string windowToJSObject(const QWindow &window)
+{
+    std::ostringstream out;
+    out << "{"
+        << "  id: " << std::to_string(window.winId()) << ","
+        << "  geometry: " << rectToJSObject(window.geometry()) << ","
+        << "  frameGeometry: " << rectToJSObject(window.frameGeometry()) << ","
+        << "  title: '" << window.title().toStdString() << "' }";
+    return out.str();
+}
+
+void windowInformation()
+{
+    auto windows = qGuiApp->allWindows();
+
+    std::vector<std::string> windowsAsJsObjects;
+    windowsAsJsObjects.reserve(windows.size());
+    std::transform(windows.begin(), windows.end(), std::back_inserter(windowsAsJsObjects),
+                   [](const QWindow *window) { return windowToJSObject(*window); });
+
+    emscripten::val::global("window").call<void>("windowInformationCallback",
+                                                 emscripten::val(toJSArray(windowsAsJsObjects)));
+}
+
+void screenInformation()
+{
+    auto screens = qGuiApp->screens();
+
+    std::vector<std::string> screensAsJsObjects;
+    screensAsJsObjects.reserve(screens.size());
+    std::transform(screens.begin(), screens.end(), std::back_inserter(screensAsJsObjects),
+                   [](const QScreen *screen) { return screenToJSObject(*screen); });
+    emscripten::val::global("window").call<void>("screenInformationCallback",
+                                                 emscripten::val(toJSArray(screensAsJsObjects)));
+}
+
+void createWindow(int x, int y, int w, int h, std::string screenId, std::string title)
+{
+    auto screens = qGuiApp->screens();
+    auto screen_it = std::find_if(screens.begin(), screens.end(), [&screenId](QScreen *screen) {
+        return screen->name() == QString::fromLatin1(screenId);
+    });
+    if (screen_it == screens.end()) {
+        qWarning() << "No such screen: " << screenId;
+        return;
+    }
+
+    auto *window = new DeleteOnCloseWindow;
+
+    window->setFlag(Qt::WindowTitleHint);
+    window->setFlag(Qt::WindowMaximizeButtonHint);
+    window->setTitle(QString::fromLatin1(title));
+    window->setGeometry(x, y, w, h);
+    window->setScreen(*screen_it);
+    window->showNormal();
+}
+
+EMSCRIPTEN_BINDINGS(qwasmwindow)
+{
+    emscripten::function("screenInformation", &screenInformation);
+    emscripten::function("windowInformation", &windowInformation);
+    emscripten::function("createWindow", &createWindow);
+}
+
+int main(int argc, char **argv)
+{
+    QGuiApplication app(argc, argv);
+
+    app.exec();
+    return 0;
+}
+
+#include "qwasmwindow_harness.moc"
diff --git a/tests/manual/wasm/qwasmwindow/qwasmwindow_harness.html b/tests/manual/wasm/qwasmwindow/qwasmwindow_harness.html
new file mode 100644
index 00000000..9eb82618
--- /dev/null
+++ b/tests/manual/wasm/qwasmwindow/qwasmwindow_harness.html
@@ -0,0 +1,66 @@
+<!doctype html>
+
+<head>
+    <script type="text/javascript" src="qwasmwindow_harness.js"></script>
+    <script>
+        (async () => {
+            const instance = await createQtAppInstance({});
+            window.instance = instance;
+
+            const testSandbox = document.createElement('div');
+            testSandbox.id = 'test-sandbox';
+            document.body.appendChild(testSandbox);
+
+            const makeSizedDiv = (left, top, width, height) => {
+                const screenDiv = document.createElement('div');
+
+                screenDiv.style.left = `${left}px`;
+                screenDiv.style.top = `${top}px`;
+                screenDiv.style.width = `${width}px`;
+                screenDiv.style.height = `${height}px`;
+                screenDiv.style.backgroundColor = 'lightblue';
+
+                return screenDiv;
+            };
+
+            window.testSupport = {
+                initializeScreenWithFixedPosition: (left, top, width, height) => {
+                    const screenDiv = makeSizedDiv(left, top, width, height);
+                    testSandbox.appendChild(screenDiv);
+
+                    screenDiv.style.position = 'fixed';
+                    instance.qtAddContainerElement(screenDiv);
+
+                    return screenDiv;
+                },
+                initializeScreenWithRelativePosition: (left, top, width, height) => {
+                    const screenDiv = makeSizedDiv(left, top, width, height);
+                    testSandbox.appendChild(screenDiv);
+
+                    screenDiv.style.position = 'relative';
+                    instance.qtAddContainerElement(screenDiv);
+
+                    return screenDiv;
+                },
+                initializeScreenInScrollContainer:
+                    (scrollWidth, scrollHeight, left, top, width, height) => {
+                        const scrollContainer = document.createElement('div');
+                        scrollContainer.style.height = `${scrollHeight}px`;
+                        scrollContainer.style.width = `${scrollWidth}px`;
+                        testSandbox.appendChild(scrollContainer);
+
+                        const screenDiv = makeSizedDiv(left, top, width, height);
+                        scrollContainer.appendChild(screenDiv);
+                        screenDiv.style.position = 'relative';
+
+                        instance.qtAddContainerElement(screenDiv);
+
+                        return [scrollContainer, screenDiv];
+                    }
+            };
+        })();
+    </script>
+</head>
+
+<body>
+</body>
diff --git a/tests/manual/wasm/qwasmwindow/run.sh b/tests/manual/wasm/qwasmwindow/run.sh
new file mode 100644
index 00000000..f6271d61
--- /dev/null
+++ b/tests/manual/wasm/qwasmwindow/run.sh
@@ -0,0 +1,23 @@
+#! /bin/bash
+
+# Copyright (C) 2022 The Qt Company Ltd.
+# SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only
+
+set -m
+
+function removeServer()
+{
+    [ -z "$cleanupPid" ] || kill $cleanupPid
+}
+
+trap removeServer EXIT
+
+script_dir=`dirname ${BASH_SOURCE[0]}`
+cd "$script_dir"
+python3 qtwasmserver.py -p 8001 > /dev/null 2>&1 &
+cleanupPid=$!
+
+python3 qwasmwindow.py $@
+
+echo 'Press any key to continue...' >&2
+read -n 1
diff --git a/tests/manual/wasm/shared/run.sh b/tests/manual/wasm/shared/run.sh
index d8ae1891..a8af94e9 100644
--- a/tests/manual/wasm/shared/run.sh
+++ b/tests/manual/wasm/shared/run.sh
@@ -20,7 +20,7 @@ trap removeServer EXIT
 
 script_dir=`dirname ${BASH_SOURCE[0]}`
 cd "$script_dir/../../../../"
-python3 -m http.server 8001 &
+python3 util/wasm/qtwasmserver/qtwasmserver.py -p 8001 &
 cleanupPid=$!
 cd -
 
diff --git a/tests/manual/wasm/shared/testrunner.js b/tests/manual/wasm/shared/testrunner.js
index da87026b..82259b06 100644
--- a/tests/manual/wasm/shared/testrunner.js
+++ b/tests/manual/wasm/shared/testrunner.js
@@ -1,6 +1,71 @@
 // Copyright (C) 2022 The Qt Company Ltd.
 // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only
 
+export class assert
+{
+    static isFalse(value)
+    {
+        if (value !== false)
+            throw new Error(`Assertion failed, expected to be false, was ${value}`);
+    }
+
+    static isTrue(value)
+    {
+        if (value !== true)
+            throw new Error(`Assertion failed, expected to be true, was ${value}`);
+    }
+
+    static isUndefined(value)
+    {
+        if (typeof value !== 'undefined')
+            throw new Error(`Assertion failed, expected to be undefined, was ${value}`);
+    }
+
+    static isNotUndefined(value)
+    {
+        if (typeof value === 'undefined')
+            throw new Error(`Assertion failed, expected not to be undefined, was ${value}`);
+    }
+
+    static equal(expected, actual)
+    {
+        if (expected !== actual)
+            throw new Error(`Assertion failed, expected to be ${expected}, was ${actual}`);
+    }
+
+    static notEqual(expected, actual)
+    {
+        if (expected === actual)
+            throw new Error(`Assertion failed, expected not to be ${expected}`);
+    }
+}
+
+export class Mock extends Function
+{
+    #calls = [];
+
+    constructor()
+    {
+        super()
+        const proxy = new Proxy(this, {
+            apply: (target, _, args) => target.onCall(...args)
+        });
+        proxy.thisMock = this;
+
+        return proxy;
+    }
+
+    get calls()
+    {
+        return this.thisMock.#calls;
+    }
+
+    onCall(...args)
+    {
+        this.#calls.push(args);
+    }
+}
+
 function output(message)
 {
     const outputLine = document.createElement('div');
@@ -15,10 +80,12 @@ function output(message)
 export class TestRunner
 {
     #testClassInstance
+    #timeoutSeconds
 
-    constructor(testClassInstance)
+    constructor(testClassInstance, config)
     {
         this.#testClassInstance = testClassInstance;
+        this.#timeoutSeconds = config?.timeoutSeconds ?? 2;
     }
 
     async run(testCase)
@@ -39,8 +106,8 @@ export class TestRunner
                 const timeout = window.setTimeout(() =>
                 {
                     rejected = true;
-                    reject(new Error('Timeout after 2 seconds'));
-                }, 2000);
+                    reject(new Error(`Timeout after ${this.#timeoutSeconds} seconds`));
+                }, this.#timeoutSeconds * 1000);
                 prototype[testCase].apply(this.#testClassInstance).then(() =>
                 {
                     if (!rejected) {
diff --git a/tests/manual/widgets/kernel/CMakeLists.txt b/tests/manual/widgets/kernel/CMakeLists.txt
index 3ad46154..c3941510 100644
--- a/tests/manual/widgets/kernel/CMakeLists.txt
+++ b/tests/manual/widgets/kernel/CMakeLists.txt
@@ -1,7 +1,7 @@
 # Copyright (C) 2022 The Qt Company Ltd.
 # SPDX-License-Identifier: BSD-3-Clause
 
-# add_subdirectory(qtooltip) # special case broken in dev
+# add_subdirectory(qtooltip) # TODO: broken in dev
 add_subdirectory(sizeonhide)
 add_subdirectory(layoutreplace)
 add_subdirectory(setscreen)
diff --git a/tests/shared/localechange.h b/tests/shared/localechange.h
index 2c642471..0e27fd29 100644
--- a/tests/shared/localechange.h
+++ b/tests/shared/localechange.h
@@ -12,7 +12,7 @@
 
 namespace QTestLocaleChange {
 
-    QLocale resetSystemLocale()
+    inline QLocale resetSystemLocale()
     {
 #ifndef QT_NO_SYSTEMLOCALE
         { // Transient instance marks system locale data as stale:
diff --git a/tests/shared/nativewindow.h b/tests/shared/nativewindow.h
new file mode 100644
index 00000000..087b7da0
--- /dev/null
+++ b/tests/shared/nativewindow.h
@@ -0,0 +1,208 @@
+// Copyright (C) 2023 The Qt Company Ltd.
+// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only WITH Qt-GPL-exception-1.0
+
+#ifndef NATIVEWINDOW_H
+#define NATIVEWINDOW_H
+
+#if defined(Q_OS_MACOS)
+#  include <AppKit/AppKit.h>
+#  define VIEW_BASE NSView
+#elif defined(Q_OS_IOS)
+#  include <UIKit/UIKit.h>
+#  define VIEW_BASE UIView
+#elif defined(Q_OS_WIN)
+#  include <winuser.h>
+#elif QT_CONFIG(xcb)
+#  include <xcb/xcb.h>
+#endif
+
+class NativeWindow
+{
+    Q_DISABLE_COPY(NativeWindow)
+public:
+    NativeWindow();
+    ~NativeWindow();
+
+    operator WId() const;
+    WId parentWinId() const;
+
+    void setGeometry(const QRect &rect);
+    QRect geometry() const;
+
+private:
+#if defined(Q_OS_MACOS) || defined(Q_OS_IOS)
+    VIEW_BASE *m_handle = nullptr;
+#elif defined(Q_OS_WIN)
+    HWND m_handle = nullptr;
+#elif QT_CONFIG(xcb)
+    xcb_window_t m_handle = 0;
+#endif
+};
+
+#if defined(Q_OS_MACOS) || defined(Q_OS_IOS)
+
+@interface View : VIEW_BASE
+@end
+
+@implementation View
+- (instancetype)init
+{
+    if ((self = [super init])) {
+#if defined(Q_OS_MACOS)
+        self.wantsLayer = YES;
+#endif
+        self.layer.backgroundColor = CGColorCreateGenericRGB(1.0, 0.5, 1.0, 1.0);
+    }
+    return self;
+}
+
+- (void)dealloc
+{
+    [super dealloc];
+}
+@end
+
+NativeWindow::NativeWindow()
+    : m_handle([View new])
+{
+}
+
+NativeWindow::~NativeWindow()
+{
+    [m_handle release];
+}
+
+void NativeWindow::setGeometry(const QRect &rect)
+{
+    m_handle.frame = QRectF(rect).toCGRect();
+}
+
+QRect NativeWindow::geometry() const
+{
+    return QRectF::fromCGRect(m_handle.frame).toRect();
+}
+
+NativeWindow::operator WId() const
+{
+    return reinterpret_cast<WId>(m_handle);
+}
+
+WId NativeWindow::parentWinId() const
+{
+    return WId(m_handle.superview);
+}
+
+#elif defined(Q_OS_WIN)
+
+NativeWindow::NativeWindow()
+{
+    static const LPCWSTR className = []{
+        WNDCLASS wc = {};
+        wc.lpfnWndProc = DefWindowProc;
+        wc.hInstance = GetModuleHandle(nullptr);
+        wc.lpszClassName = L"Native Window";
+        wc.hbrBackground = CreateSolidBrush(RGB(255, 128, 255));
+        RegisterClass(&wc);
+        return wc.lpszClassName;
+    }();
+    m_handle = CreateWindowEx(0, className, nullptr, WS_POPUP,
+                CW_USEDEFAULT, CW_USEDEFAULT, CW_USEDEFAULT, CW_USEDEFAULT,
+                nullptr, nullptr, GetModuleHandle(nullptr), nullptr);
+}
+
+NativeWindow::~NativeWindow()
+{
+    DestroyWindow(m_handle);
+}
+
+void NativeWindow::setGeometry(const QRect &rect)
+{
+    MoveWindow(m_handle, rect.x(), rect.y(), rect.width(), rect.height(), false);
+}
+
+QRect NativeWindow::geometry() const
+{
+    WINDOWPLACEMENT wp;
+    wp.length = sizeof(WINDOWPLACEMENT);
+    if (GetWindowPlacement(m_handle, &wp)) {
+        RECT r = wp.rcNormalPosition;
+        return QRect(r.left, r.top, r.right - r.left, r.bottom - r.top);
+    }
+    return {};
+}
+
+NativeWindow::operator WId() const
+{
+    return reinterpret_cast<WId>(m_handle);
+}
+
+WId NativeWindow::parentWinId() const
+{
+    return WId(GetAncestor(m_handle, GA_PARENT));
+}
+
+#elif QT_CONFIG(xcb)
+
+struct Connection
+{
+    Connection() : m_connection(xcb_connect(nullptr, nullptr)) {}
+    ~Connection() { xcb_disconnect(m_connection); }
+    operator xcb_connection_t*() const { return m_connection; }
+    xcb_connection_t *m_connection = nullptr;
+};
+
+static Connection connection;
+
+NativeWindow::NativeWindow()
+{
+    m_handle = xcb_generate_id(connection);
+
+    xcb_screen_t *screen = xcb_setup_roots_iterator(xcb_get_setup(connection)).data;
+
+    xcb_create_window(connection, XCB_COPY_FROM_PARENT, m_handle,
+        screen->root, 0, 0, 1, 1, 0, XCB_WINDOW_CLASS_INPUT_OUTPUT,
+        screen->root_visual, XCB_CW_BACK_PIXEL,
+        (const uint32_t []){ 0xffffaaff });
+
+    xcb_flush(connection);
+}
+
+NativeWindow::~NativeWindow()
+{
+    xcb_destroy_window(connection, m_handle);
+}
+
+void NativeWindow::setGeometry(const QRect &rect)
+{
+    const quint32 mask = XCB_CONFIG_WINDOW_X | XCB_CONFIG_WINDOW_Y
+            | XCB_CONFIG_WINDOW_WIDTH | XCB_CONFIG_WINDOW_HEIGHT;
+    const qint32 values[] = { rect.x(), rect.y(), rect.width(), rect.height() };
+    xcb_configure_window(connection, m_handle, mask,
+        reinterpret_cast<const quint32*>(values));
+    xcb_flush(connection);
+}
+
+QRect NativeWindow::geometry() const
+{
+    xcb_get_geometry_reply_t *geometry = xcb_get_geometry_reply(
+        connection, xcb_get_geometry(connection, m_handle), nullptr);
+    const auto cleanup = qScopeGuard([&]{ free(geometry); });
+    return QRect(geometry->x, geometry->y, geometry->width, geometry->height);
+}
+
+NativeWindow::operator WId() const
+{
+    return m_handle;
+}
+
+WId NativeWindow::parentWinId() const
+{
+    xcb_query_tree_reply_t *tree = xcb_query_tree_reply(
+        connection, xcb_query_tree(connection, m_handle), nullptr);
+    const auto cleanup = qScopeGuard([&]{ free(tree); });
+    return tree->parent;
+}
+
+#endif
+
+#endif // NATIVEWINDOW_H
diff --git a/util/cmake/pro2cmake.py b/util/cmake/pro2cmake.py
index 4b657904..e28d7c04 100644
--- a/util/cmake/pro2cmake.py
+++ b/util/cmake/pro2cmake.py
@@ -4666,7 +4666,7 @@ def create_top_level_cmake_conf():
     conf_file_name = ".cmake.conf"
     try:
         with open(conf_file_name, "x") as file:
-            file.write('set(QT_REPO_MODULE_VERSION "6.5.3")\n')
+            file.write('set(QT_REPO_MODULE_VERSION "6.6.0")\n')
     except FileExistsError:
         pass
 
diff --git a/util/locale_database/ldml.py b/util/locale_database/ldml.py
index 9bdc2cc6..d46cb3a2 100644
--- a/util/locale_database/ldml.py
+++ b/util/locale_database/ldml.py
@@ -288,7 +288,8 @@ class LocaleScanner (object):
         assert len(digits) == 10
         zero = digits[0]
         # Qt's number-formatting code assumes digits are consecutive
-        # (except Suzhou, CLDR's hanidec - see QTBUG-85409):
+        # (except Suzhou - see QTBUG-85409 - which shares its zero
+        # with CLDR's very-non-contiguous hanidec):
         assert all(ord(c) == i + (0x3020 if ord(zero) == 0x3007 else ord(zero))
                    for i, c in enumerate(digits[1:], 1))
         yield 'zero', zero
diff --git a/util/locale_database/qlocalexml2cpp.py b/util/locale_database/qlocalexml2cpp.py
index 3c8fb84a..717c5671 100644
--- a/util/locale_database/qlocalexml2cpp.py
+++ b/util/locale_database/qlocalexml2cpp.py
@@ -379,18 +379,8 @@ class LocaleDataWriter (LocaleSourceEditor):
 
         def q(val: Optional[str], size: int) -> str:
             """Quote the value and adjust the result for tabular view."""
-            chars = []
-            if val is not None:
-                for c in val:
-                    chars.append(f"'{c}'")
-                s = ', '.join(chars)
-                s = f'{{{s}}}'
-            else:
-                s = ''
-            if size == 0:
-                return f'{{{s}}}'
-            else:
-                return f'{{{s}}},'.ljust(size * 5 + 4)
+            s = '' if val is None else ', '.join(f"'{c}'" for c in val)
+            return f'{{{s}}}' if size == 0 else f'{{{s}}},'.ljust(size * 5 + 2)
 
         for key, value in languages.items():
             code = value[1]
diff --git a/util/wasm/batchedtestrunner/batchedtestrunner.js b/util/wasm/batchedtestrunner/batchedtestrunner.js
index e26e561b..7cd5f2d3 100644
--- a/util/wasm/batchedtestrunner/batchedtestrunner.js
+++ b/util/wasm/batchedtestrunner/batchedtestrunner.js
@@ -68,9 +68,9 @@ export class BatchedTestRunner {
 
     get errorDetails() { return this.#errorDetails; }
 
-    async run(targetIsBatch, testName, testOutputFormat) {
+    async run(targetIsBatch, testName, functions, testOutputFormat) {
         try {
-            await this.#doRun(targetIsBatch, testName, testOutputFormat);
+            await this.#doRun(targetIsBatch, testName, functions, testOutputFormat);
         } catch (e) {
             this.#setTestRunnerError(e.message);
             return;
@@ -93,7 +93,7 @@ export class BatchedTestRunner {
         this.#setTestRunnerStatus(status.code, status.numberOfFailed);
     }
 
-    async #doRun(targetIsBatch, testName, testOutputFormat) {
+    async #doRun(targetIsBatch, testName, functions, testOutputFormat) {
         const module = await this.#loader.loadEmscriptenModule(
             targetIsBatch ? BatchedTestRunner.#TestBatchModuleName : testName,
             () => { }
@@ -111,6 +111,7 @@ export class BatchedTestRunner {
                 const LogToStdoutSpecialFilename = '-';
                 result = await module.exec({
                     args: [...(targetIsBatch ? [testClassName] : []),
+                           ...(functions ?? []),
                            '-o', `${LogToStdoutSpecialFilename},${testOutputFormat}`],
                     onStdout: (output) => {
                         this.#addTestOutput(testClassName, output);
diff --git a/util/wasm/batchedtestrunner/emrunadapter.js b/util/wasm/batchedtestrunner/emrunadapter.js
index cd793a38..96c56241 100644
--- a/util/wasm/batchedtestrunner/emrunadapter.js
+++ b/util/wasm/batchedtestrunner/emrunadapter.js
@@ -5,8 +5,13 @@ import { RunnerStatus, TestStatus } from './batchedtestrunner.js';
 
 // Sends messages to the running emrun instance via POST requests.
 export class EmrunCommunication {
+    static #BATCHING_DELAY = 300;
+
     #indexOfMessage = 0;
-    #postOutputPromises = [];
+    #postOutputPromise;
+    // Accumulate output in a batch that gets sent with a delay so that the emrun http server
+    // does not get pounded with requests.
+    #nextOutputBatch = null;
 
     #post(body) {
         return fetch('stdio.html', {
@@ -15,10 +20,11 @@ export class EmrunCommunication {
         });
     }
 
-    // Returns a promise whose resolution signals that all outstanding traffic to the emrun instance
-    // has been completed.
-    waitUntilAllSent() {
-        return Promise.all(this.#postOutputPromises);
+    // Waits for the output sending to finish, if any output transfer is still in progress.
+    async waitUntilAllSent()
+    {
+        if (this.#postOutputPromise)
+            await this.#postOutputPromise;
     }
 
     // Posts the exit status to the running emrun instance. Emrun will drop connection unless it is
@@ -29,13 +35,25 @@ export class EmrunCommunication {
 
     // Posts an indexed output chunk to the running emrun instance. Each consecutive call to this
     // method increments the output index by 1.
-    postOutput(output) {
-        const newPromise = this.#post(`^out^${this.#indexOfMessage++}^${output}`);
-        this.#postOutputPromises.push(newPromise);
-        newPromise.finally(() => {
-            this.#postOutputPromises.splice(this.#postOutputPromises.indexOf(newPromise), 1);
-        });
-        return newPromise;
+    postOutput(output)
+    {
+        if (this.#nextOutputBatch) {
+            this.#nextOutputBatch += output;
+        } else {
+            this.#nextOutputBatch = output;
+            this.#postOutputPromise = new Promise(resolve =>
+            {
+                window.setTimeout(() =>
+                {
+                    const toSend = this.#nextOutputBatch;
+                    this.#nextOutputBatch = null;
+                    this.#post(`^out^${this.#indexOfMessage++}^${toSend}$`)
+                        .finally(resolve);
+                }, EmrunCommunication.#BATCHING_DELAY);
+            });
+        }
+
+        return this.#postOutputPromise;
     }
 }
 
diff --git a/util/wasm/batchedtestrunner/qwasmjsruntime.js b/util/wasm/batchedtestrunner/qwasmjsruntime.js
index c560f38e..b8603f26 100644
--- a/util/wasm/batchedtestrunner/qwasmjsruntime.js
+++ b/util/wasm/batchedtestrunner/qwasmjsruntime.js
@@ -176,12 +176,6 @@ export class CompiledModule {
         instanceParams.monitorRunDependencies = (name) => { };
         instanceParams.print = (text) => true && console.log(text);
         instanceParams.printErr = (text) => true && console.warn(text);
-        instanceParams.preRun = [
-            (instance) => {
-                const env = {};
-                instance.ENV = env;
-            },
-        ];
 
         instanceParams.mainScriptUrlOrBlob = new Blob([this.#js], {
             type: 'text/javascript',
diff --git a/util/wasm/batchedtestrunner/qwasmtestmain.js b/util/wasm/batchedtestrunner/qwasmtestmain.js
index 64445590..497f5309 100644
--- a/util/wasm/batchedtestrunner/qwasmtestmain.js
+++ b/util/wasm/batchedtestrunner/qwasmtestmain.js
@@ -11,6 +11,22 @@ import {
 import { parseQuery } from './util.js';
 import { VisualOutputProducer, UI, ScannerFactory } from './qtestoutputreporter.js'
 
+const StandardArg = {
+    qVisualOutput: 'qvisualoutput',
+    qTestName: 'qtestname',
+    qBatchedTest: 'qbatchedtest',
+    qUseEmrun: 'quseemrun',
+    qTestOutputFormat: 'qtestoutputformat',
+}
+
+const allArgs = new Set(Object.getOwnPropertyNames(StandardArg).map(arg => StandardArg[arg]));
+Object.defineProperty(StandardArg, 'isKnown', {
+    get()
+    {
+        return name => allArgs.has(name);
+    },
+});
+
 (() => {
     const setPageTitle = (useEmrun, testName, isBatch) => {
         document.title = 'Qt WASM test runner';
@@ -24,10 +40,11 @@ import { VisualOutputProducer, UI, ScannerFactory } from './qtestoutputreporter.
     }
 
     const parsed = parseQuery(location.search);
-    const outputInPage = parsed.get('qvisualoutput') !== undefined;
-    const testName = parsed.get('qtestname');
-    const isBatch = parsed.get('qbatchedtest') !== undefined;
-    const useEmrun = parsed.get('quseemrun') !== undefined;
+    const outputInPage = parsed.has(StandardArg.qVisualOutput);
+    const testName = parsed.get(StandardArg.qTestName);
+    const isBatch = parsed.has(StandardArg.qBatchedTest);
+    const useEmrun = parsed.has(StandardArg.qUseEmrun);
+    const functions = [...parsed.keys()].filter(arg => !StandardArg.isKnown(arg));
 
     if (testName === undefined) {
         if (!isBatch)
@@ -37,7 +54,7 @@ import { VisualOutputProducer, UI, ScannerFactory } from './qtestoutputreporter.
     }
 
     const testOutputFormat = (() => {
-        const format = parsed.get('qtestoutputformat') ?? 'txt';
+        const format = parsed.get(StandardArg.qTestOutputFormat) ?? 'txt';
         if (-1 === ['txt', 'xml', 'lightxml', 'junitxml', 'tap'].indexOf(format))
             throw new Error(`Bad file format: ${format}`);
         return format;
@@ -65,5 +82,5 @@ import { VisualOutputProducer, UI, ScannerFactory } from './qtestoutputreporter.
     }
     setPageTitle(useEmrun, testName, isBatch);
 
-    testRunner.run(isBatch, testName, testOutputFormat);
+    testRunner.run(isBatch, testName, functions, testOutputFormat);
 })();
diff --git a/util/wasm/preload/preload_qml_imports.py b/util/wasm/preload/preload_qml_imports.py
new file mode 100644
index 00000000..3e936dce
--- /dev/null
+++ b/util/wasm/preload/preload_qml_imports.py
@@ -0,0 +1,120 @@
+#!/usr/bin/env python3
+# Copyright (C) 2023 The Qt Company Ltd.
+# SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only WITH Qt-GPL-exception-1.0
+
+import os
+import sys
+import subprocess
+import json
+import re
+
+# Paths to shared libraries and qml imports on the Qt installation on the web server.
+# "$QTDIR" is replaced by qtloader.js at load time (defaults to "qt"), and makes
+# possible to relocate the application build relative to the Qt build on the web server.
+qt_lib_path = "$QTDIR/lib"
+qt_qml_path = "$QTDIR/qml"
+
+# Path to QML imports on the in-memory file system provided by Emscripten. This script emits
+# preload commands which copies QML imports to this directory. In addition, preload_qt_plugins.py
+# creates (and preloads) a qt.conf file which makes Qt load QML plugins from this location.
+qt_deploy_qml_path = "/qt/qml"
+
+
+def eprint(*args, **kwargs):
+    print(*args, file=sys.stderr, **kwargs)
+
+
+def preload_file(source, destination):
+    preload_files.append({"source": source, "destination": destination})
+
+
+def find_dependencies(filepath):
+    # Very basic dependency finder which scans for ".so" strings in the file
+    try:
+        with open(filepath, "rb") as file:
+            content = file.read()
+            return [
+                m.group(0).decode("utf-8")
+                for m in re.finditer(rb"[\w\-.]+\.so", content)
+            ]
+    except IOError as e:
+        eprint(f"Error: {e}")
+        return []
+
+
+def extract_preload_files_from_imports(imports):
+    libraries = []
+    files = []
+    for qml_import in imports:
+        try:
+            relative_path = qml_import["relativePath"]
+            plugin = qml_import["plugin"]
+
+            # plugin .so
+            so_plugin_source_path = os.path.join(
+                qt_qml_path, relative_path, "lib" + plugin + ".so"
+            )
+            so_plugin_destination_path = os.path.join(
+                qt_deploy_qml_path, relative_path, "lib" + plugin + ".so"
+            )
+
+            preload_file(so_plugin_source_path, so_plugin_destination_path)
+            so_plugin_qt_install_path = os.path.join(
+                qt_wasm_path, "qml", relative_path, "lib" + plugin + ".so"
+            )
+            deps = find_dependencies(so_plugin_qt_install_path)
+            libraries.extend(deps)
+
+            # qmldir file
+            qmldir_source_path = os.path.join(qt_qml_path, relative_path, "qmldir")
+            qmldir_destination_path = os.path.join(
+                qt_deploy_qml_path, relative_path, "qmldir"
+            )
+            preload_file(qmldir_source_path, qmldir_destination_path)
+        except Exception as e:
+            eprint(e)
+            continue
+    return files, libraries
+
+
+if __name__ == "__main__":
+    if len(sys.argv) != 3:
+        print("Usage: python make_qt_symlinks.py <qt-host-path> <qt-wasm-path>")
+        sys.exit(1)
+
+    qt_host_path = sys.argv[1]
+    qt_wasm_path = sys.argv[2]
+
+    qml_import_path = os.path.join(qt_wasm_path, "qml")
+    qmlimportsscanner_path = os.path.join(qt_host_path, "libexec/qmlimportscanner")
+
+    eprint("runing qmlimportsscanner")
+    result = subprocess.run(
+        [qmlimportsscanner_path, "-rootPath", ".", "-importPath", qml_import_path],
+        stdout=subprocess.PIPE,
+    )
+    imports = json.loads(result.stdout)
+
+    preload_files = []
+    libraries = []
+    files, libraries = extract_preload_files_from_imports(imports)
+
+    # Deploy plugin dependencies, that is, shared libraries used by the plugins.
+    # Skip some of the obvious libraries which will be
+    skip_libraries = [
+        "libQt6Core.so",
+        "libQt6Gui.so",
+        "libQt6Quick.so",
+        "libQt6Qml.so" "libQt6Network.so",
+        "libQt6OpenGL.so",
+    ]
+
+    libraries = set(libraries) - set(skip_libraries)
+    for library in libraries:
+        source = os.path.join(qt_lib_path, library)
+        # Emscripten looks for shared libraries on "/", shared libraries
+        # most be deployed there instead of at /qt/lib
+        destination = os.path.join("/", library)
+        preload_file(source, destination)
+
+    print(json.dumps(preload_files, indent=2))
diff --git a/util/wasm/preload/preload_qt_plugins.py b/util/wasm/preload/preload_qt_plugins.py
new file mode 100644
index 00000000..362d1297
--- /dev/null
+++ b/util/wasm/preload/preload_qt_plugins.py
@@ -0,0 +1,54 @@
+#!/usr/bin/env python3
+# Copyright (C) 2023 The Qt Company Ltd.
+# SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only WITH Qt-GPL-exception-1.0
+
+import os
+import sys
+import json
+
+# Path to plugins on the Qt installation on the web server. "$QTPATH" is replaced by qtloader.js
+# at load time (defaults to "qt"), which makes it possible to relocate the application build relative
+# to the Qt build on the web server.
+qt_plugins_path = "$QTDIR/plugins"
+
+# Path to plugins on the in-memory file system provided by Emscripten. This script emits
+# preload commands which copies plugins to this directory.
+qt_deploy_plugins_path = "/qt/plugins"
+
+
+def find_so_files(directory):
+    so_files = []
+    for root, dirs, files in os.walk(directory):
+        for file in files:
+            if file.endswith(".so"):
+                relative_path = os.path.relpath(os.path.join(root, file), directory)
+                so_files.append(relative_path)
+    return so_files
+
+
+if __name__ == "__main__":
+    if len(sys.argv) != 2:
+        print("Usage: python make_qt_symlinks.py <qt-wasm-path>")
+        sys.exit(1)
+
+    qt_wasm_path = sys.argv[1]
+
+    # preload all plugins
+    plugins = find_so_files(os.path.join(qt_wasm_path, "plugins"))
+    preload = [
+        {
+            "source": os.path.join(qt_plugins_path, plugin),
+            "destination": os.path.join(qt_deploy_plugins_path, plugin),
+        }
+        for plugin in plugins
+    ]
+
+    # Create and preload qt.conf which will tell Qt to look for plugins
+    # and QML imports in /qt/plugins and /qt/qml. The qt.conf file is
+    # written to the current directory.
+    qtconf = "[Paths]\nPrefix = /qt\n"
+    with open("qt.conf", "w") as f:
+        f.write(qtconf)
+    preload.append({"source": "qt.conf", "destination": "/qt.conf"})
+
+    print(json.dumps(preload, indent=2))
diff --git a/util/x86simdgen/3rdparty/simd-intel.conf b/util/x86simdgen/3rdparty/simd-intel.conf
index 0db4259f..3837855c 100644
--- a/util/x86simdgen/3rdparty/simd-intel.conf
+++ b/util/x86simdgen/3rdparty/simd-intel.conf
@@ -50,13 +50,13 @@ avx512vl		Leaf07_00EBX	    31	avx512f	# AVX512 Vector Length
 avx512vbmi		Leaf07_00ECX	    1	avx512f	# AVX512 Vector Byte Manipulation Instructions
 #pku			Leaf07_00ECX	    3		# Protection Keys for User mode
 #ospke			Leaf07_00ECX	    4		# Protection Keys Enabled by OS
-#waitpkg		Leaf07_00ECX	    5		# User-Level Monitor / Wait
+waitpkg			Leaf07_00ECX	    5		# User-Level Monitor / Wait
 avx512vbmi2		Leaf07_00ECX	    6	avx512f	# AVX512 Vector Byte Manipulation Instructions 2
 shstk			Leaf07_00ECX	    7		# Control Flow Enforcement Technology Shadow Stack
 gfni			Leaf07_00ECX	    8		# Galois Field new instructions
 vaes			Leaf07_00ECX	    9	avx2,avx,aes	# 256- and 512-bit AES
 #vpclmulqdq		Leaf07_00ECX	    10	avx	# 256- and 512-bit Carryless Multiply
-avx512vnni		Leaf07_00ECX	    11	avx512f	# AVX512 Vector Neural Network Instructions
+#avx512vnni		Leaf07_00ECX	    11	avx512f	# AVX512 Vector Neural Network Instructions
 avx512bitalg		Leaf07_00ECX	    12	avx512f	# AVX512 Bit Algorithms
 avx512vpopcntdq 	Leaf07_00ECX	    14	avx512f	# AVX512 Population Count
 #la57			Leaf07_00ECX	    16		# 5-level page tables
@@ -78,16 +78,24 @@ hybrid			Leaf07_00EDX	    15		# Hybrid processor
 ibt			Leaf07_00EDX	    20		# Control Flow Enforcement Technology Indirect Branch Tracking
 #amxbf16		Leaf07_00EDX	    22	amxtile	# AMX Tile multiplication in BFloat16
 avx512fp16		Leaf07_00EDX	    23	avx512f,f16c	# AVX512 16-bit Floating Point
-#amxtile		Leaf07_00EDX	    24		# Advanced Matrix Extensions Tile support
-#amxint8		Leaf07_00EDX	    25	amxtile	# AMX Tile multiplication for Int8
+#amx-tile		Leaf07_00EDX	    24		# Advanced Matrix Extensions Tile support
+#amx-int8		Leaf07_00EDX	    25	amx-tile	# AMX Tile multiplication for Int8
+raoint			Leaf07_01EAX	    3		# Remote Atomic Operations, Integer
 #avxvnni		Leaf07_01EAX	    4	avx	# AVX (VEX-encoded) versions of the Vector Neural Network Instructions
 #avx512bf16		Leaf07_01EAX	    5	avx512f	# AVX512 Brain Float16
+cmpccxadd		Leaf07_01EAX	    6		# CMPccXADD instructions
 #zlmovsb		Leaf07_01EAX	    10		# Zero-length MOVSB
 #fsrs			Leaf07_01EAX	    11		# Fast Short (REP?) STOSB
 #fsrc			Leaf07_01EAX	    12		# Fast Short (REP?) CMPSB, SCASB
 #fred			Leaf07_01EAX	    17		# Flexible Return and Event Delivery
 #lkgs			Leaf07_01EAX	    18		# Load into Kernel GS
-#lam			Leaf07_01EAX	    26		# Linear Address Masking
+#amx-fp16		Leaf07_01EAX	    21	amx-tile	# AMX Tile multiplication in FP16
+avxifma			Leaf07_01EAX	    23	avx	# AVX-IFMA instructions
+lam			Leaf07_01EAX	    26		# Linear Address Masking
+#avxvnniint8		Leaf07_01EDX	    4	avx	# AVX Vector Neural Network Instructions, Int8
+#avxneconvert		Leaf07_01EDX	    5	avx	# AVX Non-Exception BF16/FP16/FP32 Conversion instructions
+#amx-complex		Leaf07_01EDX	    8	amx-tile	# AMX Complex Matrix multiplication
+#prefetchiti		Leaf07_01EDX	    14		# PREFETCHIT0/1 instructions
 #xsaveopt		Leaf13_01EAX	    0		# Optimized XSAVE
 #xsavec			Leaf13_01EAX	    1		# XSAVE with Compaction
 #xgetbv1		Leaf13_01EAX	    2		# XGETBV with ECX=1
@@ -122,12 +130,12 @@ xsave=AvxState		SseState|Ymm_Hi128	avx,fma,avx512f
 xsave=MPXState		Bndregs|Bndcsr		mpx
 xsave=Avx512State	AvxState|OpMask|Zmm_Hi256|Hi16_Zmm	avx512f
 xsave=CetState		CetUState|CetSState	shstk
-xsave=AmxState		Xtilecfg|Xtiledata	amxtile
+xsave=AmxState		Xtilecfg|Xtiledata	amx-tile
 
 # Processor/arch listing below this line
 # Source: Intel Instruction Set Extension manual, section 1.2
 # Source: GCC gcc/config/i386/i386.h, i386-c.c, i386-builtins.c
-# Architecture	Based on	New features	Optional features
+# Architecture	Based on	New features
 arch=x86_64	<>		sse2
   # Core line
 arch=Core2	x86_64	sse3,ssse3,cx16
@@ -135,26 +143,44 @@ arch=NHM	Core2	sse4.1,sse4.2,popcnt
 arch=WSM	NHM
 arch=SNB	WSM	avx
 arch=IVB	SNB	f16c,rdrnd,fsgsbase
-arch=HSW	IVB	avx2,fma,bmi,bmi2,lzcnt,movbe
+arch=HSW	IVB	avx2,fma,bmi,bmi2,lzcnt,movbe	# hle,rtm
 arch=BDW	HSW	adx,rdseed
 arch=BDX	BDW
 arch=SKL	BDW	xsavec,xsaves
-arch=ADL	SKL	avxvnni,gfni,vaes,vpclmulqdq,serialize,shstk,cldemote,movdiri,movdir64b,ibt,waitpkg,keylocker	rdpid
-arch=SKX	SKL	avx512f,avx512dq,avx512cd,avx512bw,avx512vl	clwb
+arch=SKX	SKL	avx512f,avx512dq,avx512cd,avx512bw,avx512vl #clwb
 arch=CLX	SKX	avx512vnni
 arch=CPX	CLX	avx512bf16
-arch=CNL	SKX	avx512ifma,avx512vbmi	sha
-arch=ICL	CNL	avx512vbmi2,gfni,vaes,vpclmulqdq,avx512vnni,avx512bitalg,avx512vpopcntdq	fsrm,rdpid
-arch=ICX	ICL	pconfig
-arch=TGL	ICL	avx512vp2intersect,shstk,,movdiri,movdir64b,ibt,keylocker
-arch=SPR	TGL	avx512bf16,amxtile,amxbf16,amxint8,avxvnni,cldemote,pconfig,waitpkg,serialize,tsxldtrk,uintr
+arch=PLC	SKX	avx512ifma,avx512vbmi #sha
+arch=SNC	PLC	avx512vbmi2,gfni,vaes,vpclmulqdq,avx512vnni,avx512bitalg,avx512vpopcntdq #fsrm,rdpid
+arch=WLC	SNC	shstk,movdiri,movdir64b,ibt,keylocker		# avx512vp2intersect
+arch=GLC	WLC	avx512bf16,avxvnni,cldemote,waitpkg,serialize,uintr	# tsxldtrk
+arch=RPC	GLC
+arch=RWC	RPC	prefetchiti
   # Atom line
 arch=SLM	WSM	rdrnd,movbe
 arch=GLM	SLM	fsgsbase,rdseed,lzcnt,xsavec,xsaves
 arch=TNT	GLM	clwb,gfni,cldemote,waitpkg,movdiri,movdir64b
+arch=GRT	SKL	avxvnni,gfni,vaes,vpclmulqdq,serialize,shstk,cldemote,movdiri,movdir64b,ibt,waitpkg,keylocker # rdpid
+arch=CMT	GRT	cmpccxadd,avxifma,avxneconvert,avxvnniint8
   # Xeon Phi line
 #arch=KNL	SKL		avx512f,avx512er,avx512pf,avx512cd
 #arch=KNM	KNL		avx5124fmaps,avx5124vnniw,avx512vpopcntdq
+  # Hybrids and other names
+arch=CNL    	PLC
+arch=ICL	SNC
+arch=TGL	WLC
+arch=ADL	GRT
+arch=RPL	GRT
+arch=MTL	CMT
+arch=ARL	CMT
+arch=LNL	CMT
+arch=ICX	SNC	pconfig
+arch=SPR	GLC	pconfig,amx-tile,amx-bf16,amx-int8
+arch=EMR	SPR
+arch=GNR	GLC	pconfig,amx-tile,amx-bf16,amx-int8,amx-fp16,amx-complex
+arch=SRF	CMT	cmpccxadd,avxifma,avxneconvert,avxvnniint8
+arch=GRR	SRF	raoint
+arch=CWF	SRF
   # Longer names
 arch=Nehalem		NHM	# Intel Core i3/i5/i7
 arch=Westmere		WSM	# Intel Core i3/i5/i7
@@ -166,14 +192,31 @@ arch=Skylake		SKL	# Sixth Generation Intel Core i3/i5/i7
 arch=Skylake-Avx512	SKX	# Intel Xeon Scalable
 arch=CascadeLake	CLX	# Second Generation Intel Xeon Scalable
 arch=CooperLake		CPX	# Third Generation Intel Xeon Scalable
+arch=PalmCove		PLC
 arch=CannonLake		CNL	# Intel Core i3-8121U
+arch=SunnyCove		SNC
 arch=IceLake-Client	ICL	# Tenth Generation Intel Core i3/i5/i7
 arch=IceLake-Server	ICX	# Third Generation Intel Xeon Scalable
-arch=AlderLake		ADL
-arch=SapphireRapids	SPR
+arch=WillowCove		WLC
 arch=TigerLake		TGL	# Eleventh Generation Intel Core i3/i5/i7
+arch=GoldenCove		GLC
+arch=AlderLake		ADL	# Twelfth Generation Intel Core
+arch=RaptorCove		RPC
+arch=RaptorLake		RPL	# Thirteenth Generation Intel Core
+arch=RedwoodCove	RWC
+arch=MeteorLake		MTL
+arch=ArrowLake		ARL
+arch=LunarLake		LNL
+arch=SapphireRapids	SPR	# Fourth Generation Intel Xeon Scalable
+arch=EmeraldRapids	EMR	# Fifth Generation Intel Xeon Scalable
+arch=GraniteRapids	GNR
 arch=Silvermont		SLM
 arch=Goldmont		GLM
 arch=Tremont		TNT
+arch=Gracemont		GRT
+arch=Crestmont		CMT
+arch=GrandRidge		GRR
+arch=SierraForest	SRF
+arch=ClearwaterForest	CWF
 #arch=KnightsLanding	KNL
 #arch=KnightsMill	KNM
diff --git a/util/x86simdgen/3rdparty/x86simd_generate.pl b/util/x86simdgen/3rdparty/x86simd_generate.pl
index 99236b6e..66bb1bbd 100644
--- a/util/x86simdgen/3rdparty/x86simd_generate.pl
+++ b/util/x86simdgen/3rdparty/x86simd_generate.pl
@@ -13,6 +13,7 @@ my %leaves = (
     Leaf07_00ECX        => "CPUID Leaf 7, Sub-leaf 0, ECX",
     Leaf07_00EDX        => "CPUID Leaf 7, Sub-leaf 0, EDX",
     Leaf07_01EAX        => "CPUID Leaf 7, Sub-leaf 1, EAX",
+    Leaf07_01EDX        => "CPUID Leaf 7, Sub-leaf 1, EDX",
     Leaf13_01EAX        => "CPUID Leaf 13, Sub-leaf 1, EAX",
     Leaf80000001hECX    => "CPUID Leaf 80000001h, ECX",
     Leaf80000008hEBX    => "CPUID Leaf 80000008h, EBX",
@@ -258,7 +259,7 @@ print "\nenum X86CpuidLeaves {";
 map { print "    $_," } @leafNames;
 print "    X86CpuidMaxLeaf\n};";
 
-my $type = scalar %leaves > 8 ? "uint16_t" : "uint8_t";
+my $type = scalar keys %leaves > 8 ? "uint16_t" : "uint8_t";
 printf "\nstatic const %s x86_locators[] = {\n",
     $type, $type;
 for (my $j = 0; $j < scalar @features; ++$j) {
@@ -283,7 +284,7 @@ struct X86Architecture
 };
 
 static const struct X86Architecture x86_architectures[] = {|;
-for (sort { $b <=> $a } keys %sorted_archs) {
+for (sort keys %sorted_archs) {
     my $arch = $sorted_archs{$_};
     next if $arch->{base} eq "<>";
     printf "    { cpu_%s, \"%s\" },\n", $arch->{id}, $arch->{prettyname};
diff --git a/util/x86simdgen/Makefile b/util/x86simdgen/Makefile
index 5caa0cf7..8f4dcbf4 100644
--- a/util/x86simdgen/Makefile
+++ b/util/x86simdgen/Makefile
@@ -14,9 +14,7 @@ $(TARGETDIR)/$(TARGETHEADER): header $(TARGETHEADER)
 	sed '/-- implementation start --/,/-- implementation end --/d' $^ | \
 	sed 's!3rdparty/x86simd_generate\.pl!util/x86simdgen/README.md!' > $@
 $(TARGETDIR)/$(TARGETCPP): $(TARGETHEADER) header
-	(cat header | grep -v '^//' | grep .; echo; \
-	 echo '// This is a generated file. DO NOT EDIT.'; \
-	 echo '// Please see util/x86simdgen/README.md'; \
+	(sed '/^$$/q' header; \
 	 echo '#include "$(TARGETHEADER)"'; \
 	 sed '1,/-- implementation start --/d;/-- implementation end --/,$$d' $<) > $@
 
diff --git a/util/x86simdgen/header b/util/x86simdgen/header
index 12288f7d..50a9fef7 100644
--- a/util/x86simdgen/header
+++ b/util/x86simdgen/header
@@ -1,5 +1,7 @@
 // Copyright (C) 2022 Intel Corporation.
 // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
+// This is a generated file. DO NOT EDIT.
+// Please see util/x86simdgen/README.md
 
 //
 //  W A R N I N G